138c8a9a5SSteve French // SPDX-License-Identifier: GPL-2.0-or-later 238c8a9a5SSteve French /* 338c8a9a5SSteve French * Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org> 438c8a9a5SSteve French * Copyright (C) 2018 Samsung Electronics Co., Ltd. 538c8a9a5SSteve French */ 638c8a9a5SSteve French 738c8a9a5SSteve French #include <linux/inetdevice.h> 838c8a9a5SSteve French #include <net/addrconf.h> 938c8a9a5SSteve French #include <linux/syscalls.h> 1038c8a9a5SSteve French #include <linux/namei.h> 1138c8a9a5SSteve French #include <linux/statfs.h> 1238c8a9a5SSteve French #include <linux/ethtool.h> 1338c8a9a5SSteve French #include <linux/falloc.h> 1438c8a9a5SSteve French #include <linux/mount.h> 1538c8a9a5SSteve French #include <linux/filelock.h> 1638c8a9a5SSteve French 1738c8a9a5SSteve French #include "glob.h" 1838c8a9a5SSteve French #include "smbfsctl.h" 1938c8a9a5SSteve French #include "oplock.h" 2038c8a9a5SSteve French #include "smbacl.h" 2138c8a9a5SSteve French 2238c8a9a5SSteve French #include "auth.h" 2338c8a9a5SSteve French #include "asn1.h" 2438c8a9a5SSteve French #include "connection.h" 2538c8a9a5SSteve French #include "transport_ipc.h" 2638c8a9a5SSteve French #include "transport_rdma.h" 2738c8a9a5SSteve French #include "vfs.h" 2838c8a9a5SSteve French #include "vfs_cache.h" 2938c8a9a5SSteve French #include "misc.h" 3038c8a9a5SSteve French 3138c8a9a5SSteve French #include "server.h" 3238c8a9a5SSteve French #include "smb_common.h" 3338c8a9a5SSteve French #include "smbstatus.h" 3438c8a9a5SSteve French #include "ksmbd_work.h" 3538c8a9a5SSteve French #include "mgmt/user_config.h" 3638c8a9a5SSteve French #include "mgmt/share_config.h" 3738c8a9a5SSteve French #include "mgmt/tree_connect.h" 3838c8a9a5SSteve French #include "mgmt/user_session.h" 3938c8a9a5SSteve French #include "mgmt/ksmbd_ida.h" 4038c8a9a5SSteve French #include "ndr.h" 4138c8a9a5SSteve French 4238c8a9a5SSteve French static void __wbuf(struct ksmbd_work *work, void **req, void **rsp) 4338c8a9a5SSteve French { 4438c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) { 4538c8a9a5SSteve French *req = ksmbd_req_buf_next(work); 4638c8a9a5SSteve French *rsp = ksmbd_resp_buf_next(work); 4738c8a9a5SSteve French } else { 4838c8a9a5SSteve French *req = smb2_get_msg(work->request_buf); 4938c8a9a5SSteve French *rsp = smb2_get_msg(work->response_buf); 5038c8a9a5SSteve French } 5138c8a9a5SSteve French } 5238c8a9a5SSteve French 5338c8a9a5SSteve French #define WORK_BUFFERS(w, rq, rs) __wbuf((w), (void **)&(rq), (void **)&(rs)) 5438c8a9a5SSteve French 5538c8a9a5SSteve French /** 5638c8a9a5SSteve French * check_session_id() - check for valid session id in smb header 5738c8a9a5SSteve French * @conn: connection instance 5838c8a9a5SSteve French * @id: session id from smb header 5938c8a9a5SSteve French * 6038c8a9a5SSteve French * Return: 1 if valid session id, otherwise 0 6138c8a9a5SSteve French */ 6238c8a9a5SSteve French static inline bool check_session_id(struct ksmbd_conn *conn, u64 id) 6338c8a9a5SSteve French { 6438c8a9a5SSteve French struct ksmbd_session *sess; 6538c8a9a5SSteve French 6638c8a9a5SSteve French if (id == 0 || id == -1) 6738c8a9a5SSteve French return false; 6838c8a9a5SSteve French 6938c8a9a5SSteve French sess = ksmbd_session_lookup_all(conn, id); 7038c8a9a5SSteve French if (sess) 7138c8a9a5SSteve French return true; 7238c8a9a5SSteve French pr_err("Invalid user session id: %llu\n", id); 7338c8a9a5SSteve French return false; 7438c8a9a5SSteve French } 7538c8a9a5SSteve French 7638c8a9a5SSteve French struct channel *lookup_chann_list(struct ksmbd_session *sess, struct ksmbd_conn *conn) 7738c8a9a5SSteve French { 7838c8a9a5SSteve French return xa_load(&sess->ksmbd_chann_list, (long)conn); 7938c8a9a5SSteve French } 8038c8a9a5SSteve French 8138c8a9a5SSteve French /** 8238c8a9a5SSteve French * smb2_get_ksmbd_tcon() - get tree connection information using a tree id. 8338c8a9a5SSteve French * @work: smb work 8438c8a9a5SSteve French * 8538c8a9a5SSteve French * Return: 0 if there is a tree connection matched or these are 8638c8a9a5SSteve French * skipable commands, otherwise error 8738c8a9a5SSteve French */ 8838c8a9a5SSteve French int smb2_get_ksmbd_tcon(struct ksmbd_work *work) 8938c8a9a5SSteve French { 903df0411eSNamjae Jeon struct smb2_hdr *req_hdr = ksmbd_req_buf_next(work); 9138c8a9a5SSteve French unsigned int cmd = le16_to_cpu(req_hdr->Command); 923df0411eSNamjae Jeon unsigned int tree_id; 9338c8a9a5SSteve French 9438c8a9a5SSteve French if (cmd == SMB2_TREE_CONNECT_HE || 9538c8a9a5SSteve French cmd == SMB2_CANCEL_HE || 9638c8a9a5SSteve French cmd == SMB2_LOGOFF_HE) { 9738c8a9a5SSteve French ksmbd_debug(SMB, "skip to check tree connect request\n"); 9838c8a9a5SSteve French return 0; 9938c8a9a5SSteve French } 10038c8a9a5SSteve French 10138c8a9a5SSteve French if (xa_empty(&work->sess->tree_conns)) { 10238c8a9a5SSteve French ksmbd_debug(SMB, "NO tree connected\n"); 10338c8a9a5SSteve French return -ENOENT; 10438c8a9a5SSteve French } 10538c8a9a5SSteve French 10638c8a9a5SSteve French tree_id = le32_to_cpu(req_hdr->Id.SyncId.TreeId); 1075005bcb4SNamjae Jeon 1085005bcb4SNamjae Jeon /* 1095005bcb4SNamjae Jeon * If request is not the first in Compound request, 1105005bcb4SNamjae Jeon * Just validate tree id in header with work->tcon->id. 1115005bcb4SNamjae Jeon */ 1125005bcb4SNamjae Jeon if (work->next_smb2_rcv_hdr_off) { 1135005bcb4SNamjae Jeon if (!work->tcon) { 1145005bcb4SNamjae Jeon pr_err("The first operation in the compound does not have tcon\n"); 1155005bcb4SNamjae Jeon return -EINVAL; 1165005bcb4SNamjae Jeon } 1173df0411eSNamjae Jeon if (tree_id != UINT_MAX && work->tcon->id != tree_id) { 1185005bcb4SNamjae Jeon pr_err("tree id(%u) is different with id(%u) in first operation\n", 1195005bcb4SNamjae Jeon tree_id, work->tcon->id); 1205005bcb4SNamjae Jeon return -EINVAL; 1215005bcb4SNamjae Jeon } 1225005bcb4SNamjae Jeon return 1; 1235005bcb4SNamjae Jeon } 1245005bcb4SNamjae Jeon 12538c8a9a5SSteve French work->tcon = ksmbd_tree_conn_lookup(work->sess, tree_id); 12638c8a9a5SSteve French if (!work->tcon) { 12738c8a9a5SSteve French pr_err("Invalid tid %d\n", tree_id); 1285005bcb4SNamjae Jeon return -ENOENT; 12938c8a9a5SSteve French } 13038c8a9a5SSteve French 13138c8a9a5SSteve French return 1; 13238c8a9a5SSteve French } 13338c8a9a5SSteve French 13438c8a9a5SSteve French /** 13538c8a9a5SSteve French * smb2_set_err_rsp() - set error response code on smb response 13638c8a9a5SSteve French * @work: smb work containing response buffer 13738c8a9a5SSteve French */ 13838c8a9a5SSteve French void smb2_set_err_rsp(struct ksmbd_work *work) 13938c8a9a5SSteve French { 14038c8a9a5SSteve French struct smb2_err_rsp *err_rsp; 14138c8a9a5SSteve French 14238c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) 14338c8a9a5SSteve French err_rsp = ksmbd_resp_buf_next(work); 14438c8a9a5SSteve French else 14538c8a9a5SSteve French err_rsp = smb2_get_msg(work->response_buf); 14638c8a9a5SSteve French 14738c8a9a5SSteve French if (err_rsp->hdr.Status != STATUS_STOPPED_ON_SYMLINK) { 148e2b76ab8SNamjae Jeon int err; 149e2b76ab8SNamjae Jeon 15038c8a9a5SSteve French err_rsp->StructureSize = SMB2_ERROR_STRUCTURE_SIZE2_LE; 15138c8a9a5SSteve French err_rsp->ErrorContextCount = 0; 15238c8a9a5SSteve French err_rsp->Reserved = 0; 15338c8a9a5SSteve French err_rsp->ByteCount = 0; 15438c8a9a5SSteve French err_rsp->ErrorData[0] = 0; 155e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, (void *)err_rsp, 156041bba44SNamjae Jeon __SMB2_HEADER_STRUCTURE_SIZE + 157e2b76ab8SNamjae Jeon SMB2_ERROR_STRUCTURE_SIZE2); 158e2b76ab8SNamjae Jeon if (err) 159e2b76ab8SNamjae Jeon work->send_no_response = 1; 16038c8a9a5SSteve French } 16138c8a9a5SSteve French } 16238c8a9a5SSteve French 16338c8a9a5SSteve French /** 16438c8a9a5SSteve French * is_smb2_neg_cmd() - is it smb2 negotiation command 16538c8a9a5SSteve French * @work: smb work containing smb header 16638c8a9a5SSteve French * 16738c8a9a5SSteve French * Return: true if smb2 negotiation command, otherwise false 16838c8a9a5SSteve French */ 16938c8a9a5SSteve French bool is_smb2_neg_cmd(struct ksmbd_work *work) 17038c8a9a5SSteve French { 17138c8a9a5SSteve French struct smb2_hdr *hdr = smb2_get_msg(work->request_buf); 17238c8a9a5SSteve French 17338c8a9a5SSteve French /* is it SMB2 header ? */ 17438c8a9a5SSteve French if (hdr->ProtocolId != SMB2_PROTO_NUMBER) 17538c8a9a5SSteve French return false; 17638c8a9a5SSteve French 17738c8a9a5SSteve French /* make sure it is request not response message */ 17838c8a9a5SSteve French if (hdr->Flags & SMB2_FLAGS_SERVER_TO_REDIR) 17938c8a9a5SSteve French return false; 18038c8a9a5SSteve French 18138c8a9a5SSteve French if (hdr->Command != SMB2_NEGOTIATE) 18238c8a9a5SSteve French return false; 18338c8a9a5SSteve French 18438c8a9a5SSteve French return true; 18538c8a9a5SSteve French } 18638c8a9a5SSteve French 18738c8a9a5SSteve French /** 18838c8a9a5SSteve French * is_smb2_rsp() - is it smb2 response 18938c8a9a5SSteve French * @work: smb work containing smb response buffer 19038c8a9a5SSteve French * 19138c8a9a5SSteve French * Return: true if smb2 response, otherwise false 19238c8a9a5SSteve French */ 19338c8a9a5SSteve French bool is_smb2_rsp(struct ksmbd_work *work) 19438c8a9a5SSteve French { 19538c8a9a5SSteve French struct smb2_hdr *hdr = smb2_get_msg(work->response_buf); 19638c8a9a5SSteve French 19738c8a9a5SSteve French /* is it SMB2 header ? */ 19838c8a9a5SSteve French if (hdr->ProtocolId != SMB2_PROTO_NUMBER) 19938c8a9a5SSteve French return false; 20038c8a9a5SSteve French 20138c8a9a5SSteve French /* make sure it is response not request message */ 20238c8a9a5SSteve French if (!(hdr->Flags & SMB2_FLAGS_SERVER_TO_REDIR)) 20338c8a9a5SSteve French return false; 20438c8a9a5SSteve French 20538c8a9a5SSteve French return true; 20638c8a9a5SSteve French } 20738c8a9a5SSteve French 20838c8a9a5SSteve French /** 20938c8a9a5SSteve French * get_smb2_cmd_val() - get smb command code from smb header 21038c8a9a5SSteve French * @work: smb work containing smb request buffer 21138c8a9a5SSteve French * 21238c8a9a5SSteve French * Return: smb2 request command value 21338c8a9a5SSteve French */ 21438c8a9a5SSteve French u16 get_smb2_cmd_val(struct ksmbd_work *work) 21538c8a9a5SSteve French { 21638c8a9a5SSteve French struct smb2_hdr *rcv_hdr; 21738c8a9a5SSteve French 21838c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) 21938c8a9a5SSteve French rcv_hdr = ksmbd_req_buf_next(work); 22038c8a9a5SSteve French else 22138c8a9a5SSteve French rcv_hdr = smb2_get_msg(work->request_buf); 22238c8a9a5SSteve French return le16_to_cpu(rcv_hdr->Command); 22338c8a9a5SSteve French } 22438c8a9a5SSteve French 22538c8a9a5SSteve French /** 22638c8a9a5SSteve French * set_smb2_rsp_status() - set error response code on smb2 header 22738c8a9a5SSteve French * @work: smb work containing response buffer 22838c8a9a5SSteve French * @err: error response code 22938c8a9a5SSteve French */ 23038c8a9a5SSteve French void set_smb2_rsp_status(struct ksmbd_work *work, __le32 err) 23138c8a9a5SSteve French { 23238c8a9a5SSteve French struct smb2_hdr *rsp_hdr; 23338c8a9a5SSteve French 23438c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) 23538c8a9a5SSteve French rsp_hdr = ksmbd_resp_buf_next(work); 23638c8a9a5SSteve French else 23738c8a9a5SSteve French rsp_hdr = smb2_get_msg(work->response_buf); 23838c8a9a5SSteve French rsp_hdr->Status = err; 23938c8a9a5SSteve French smb2_set_err_rsp(work); 24038c8a9a5SSteve French } 24138c8a9a5SSteve French 24238c8a9a5SSteve French /** 24338c8a9a5SSteve French * init_smb2_neg_rsp() - initialize smb2 response for negotiate command 24438c8a9a5SSteve French * @work: smb work containing smb request buffer 24538c8a9a5SSteve French * 24638c8a9a5SSteve French * smb2 negotiate response is sent in reply of smb1 negotiate command for 24738c8a9a5SSteve French * dialect auto-negotiation. 24838c8a9a5SSteve French */ 24938c8a9a5SSteve French int init_smb2_neg_rsp(struct ksmbd_work *work) 25038c8a9a5SSteve French { 25138c8a9a5SSteve French struct smb2_hdr *rsp_hdr; 25238c8a9a5SSteve French struct smb2_negotiate_rsp *rsp; 25338c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 254e2b76ab8SNamjae Jeon int err; 25538c8a9a5SSteve French 25638c8a9a5SSteve French rsp_hdr = smb2_get_msg(work->response_buf); 25738c8a9a5SSteve French memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2); 25838c8a9a5SSteve French rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER; 25938c8a9a5SSteve French rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE; 26038c8a9a5SSteve French rsp_hdr->CreditRequest = cpu_to_le16(2); 26138c8a9a5SSteve French rsp_hdr->Command = SMB2_NEGOTIATE; 26238c8a9a5SSteve French rsp_hdr->Flags = (SMB2_FLAGS_SERVER_TO_REDIR); 26338c8a9a5SSteve French rsp_hdr->NextCommand = 0; 26438c8a9a5SSteve French rsp_hdr->MessageId = 0; 26538c8a9a5SSteve French rsp_hdr->Id.SyncId.ProcessId = 0; 26638c8a9a5SSteve French rsp_hdr->Id.SyncId.TreeId = 0; 26738c8a9a5SSteve French rsp_hdr->SessionId = 0; 26838c8a9a5SSteve French memset(rsp_hdr->Signature, 0, 16); 26938c8a9a5SSteve French 27038c8a9a5SSteve French rsp = smb2_get_msg(work->response_buf); 27138c8a9a5SSteve French 27238c8a9a5SSteve French WARN_ON(ksmbd_conn_good(conn)); 27338c8a9a5SSteve French 27438c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(65); 27538c8a9a5SSteve French ksmbd_debug(SMB, "conn->dialect 0x%x\n", conn->dialect); 27638c8a9a5SSteve French rsp->DialectRevision = cpu_to_le16(conn->dialect); 27738c8a9a5SSteve French /* Not setting conn guid rsp->ServerGUID, as it 27838c8a9a5SSteve French * not used by client for identifying connection 27938c8a9a5SSteve French */ 28038c8a9a5SSteve French rsp->Capabilities = cpu_to_le32(conn->vals->capabilities); 28138c8a9a5SSteve French /* Default Max Message Size till SMB2.0, 64K*/ 28238c8a9a5SSteve French rsp->MaxTransactSize = cpu_to_le32(conn->vals->max_trans_size); 28338c8a9a5SSteve French rsp->MaxReadSize = cpu_to_le32(conn->vals->max_read_size); 28438c8a9a5SSteve French rsp->MaxWriteSize = cpu_to_le32(conn->vals->max_write_size); 28538c8a9a5SSteve French 28638c8a9a5SSteve French rsp->SystemTime = cpu_to_le64(ksmbd_systime()); 28738c8a9a5SSteve French rsp->ServerStartTime = 0; 28838c8a9a5SSteve French 28938c8a9a5SSteve French rsp->SecurityBufferOffset = cpu_to_le16(128); 29038c8a9a5SSteve French rsp->SecurityBufferLength = cpu_to_le16(AUTH_GSS_LENGTH); 29138c8a9a5SSteve French ksmbd_copy_gss_neg_header((char *)(&rsp->hdr) + 29238c8a9a5SSteve French le16_to_cpu(rsp->SecurityBufferOffset)); 29338c8a9a5SSteve French rsp->SecurityMode = SMB2_NEGOTIATE_SIGNING_ENABLED_LE; 29438c8a9a5SSteve French if (server_conf.signing == KSMBD_CONFIG_OPT_MANDATORY) 29538c8a9a5SSteve French rsp->SecurityMode |= SMB2_NEGOTIATE_SIGNING_REQUIRED_LE; 296e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, rsp, 297e2b76ab8SNamjae Jeon sizeof(struct smb2_negotiate_rsp) + AUTH_GSS_LENGTH); 298e2b76ab8SNamjae Jeon if (err) 299e2b76ab8SNamjae Jeon return err; 30038c8a9a5SSteve French conn->use_spnego = true; 30138c8a9a5SSteve French 30238c8a9a5SSteve French ksmbd_conn_set_need_negotiate(conn); 30338c8a9a5SSteve French return 0; 30438c8a9a5SSteve French } 30538c8a9a5SSteve French 30638c8a9a5SSteve French /** 30738c8a9a5SSteve French * smb2_set_rsp_credits() - set number of credits in response buffer 30838c8a9a5SSteve French * @work: smb work containing smb response buffer 30938c8a9a5SSteve French */ 31038c8a9a5SSteve French int smb2_set_rsp_credits(struct ksmbd_work *work) 31138c8a9a5SSteve French { 31238c8a9a5SSteve French struct smb2_hdr *req_hdr = ksmbd_req_buf_next(work); 31338c8a9a5SSteve French struct smb2_hdr *hdr = ksmbd_resp_buf_next(work); 31438c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 31538c8a9a5SSteve French unsigned short credits_requested, aux_max; 31638c8a9a5SSteve French unsigned short credit_charge, credits_granted = 0; 31738c8a9a5SSteve French 31838c8a9a5SSteve French if (work->send_no_response) 31938c8a9a5SSteve French return 0; 32038c8a9a5SSteve French 32138c8a9a5SSteve French hdr->CreditCharge = req_hdr->CreditCharge; 32238c8a9a5SSteve French 32338c8a9a5SSteve French if (conn->total_credits > conn->vals->max_credits) { 32438c8a9a5SSteve French hdr->CreditRequest = 0; 32538c8a9a5SSteve French pr_err("Total credits overflow: %d\n", conn->total_credits); 32638c8a9a5SSteve French return -EINVAL; 32738c8a9a5SSteve French } 32838c8a9a5SSteve French 32938c8a9a5SSteve French credit_charge = max_t(unsigned short, 33038c8a9a5SSteve French le16_to_cpu(req_hdr->CreditCharge), 1); 33138c8a9a5SSteve French if (credit_charge > conn->total_credits) { 33238c8a9a5SSteve French ksmbd_debug(SMB, "Insufficient credits granted, given: %u, granted: %u\n", 33338c8a9a5SSteve French credit_charge, conn->total_credits); 33438c8a9a5SSteve French return -EINVAL; 33538c8a9a5SSteve French } 33638c8a9a5SSteve French 33738c8a9a5SSteve French conn->total_credits -= credit_charge; 33838c8a9a5SSteve French conn->outstanding_credits -= credit_charge; 33938c8a9a5SSteve French credits_requested = max_t(unsigned short, 34038c8a9a5SSteve French le16_to_cpu(req_hdr->CreditRequest), 1); 34138c8a9a5SSteve French 34238c8a9a5SSteve French /* according to smb2.credits smbtorture, Windows server 34338c8a9a5SSteve French * 2016 or later grant up to 8192 credits at once. 34438c8a9a5SSteve French * 34538c8a9a5SSteve French * TODO: Need to adjuct CreditRequest value according to 34638c8a9a5SSteve French * current cpu load 34738c8a9a5SSteve French */ 34838c8a9a5SSteve French if (hdr->Command == SMB2_NEGOTIATE) 34938c8a9a5SSteve French aux_max = 1; 35038c8a9a5SSteve French else 35184c5aa47SNamjae Jeon aux_max = conn->vals->max_credits - conn->total_credits; 35238c8a9a5SSteve French credits_granted = min_t(unsigned short, credits_requested, aux_max); 35338c8a9a5SSteve French 35438c8a9a5SSteve French conn->total_credits += credits_granted; 35538c8a9a5SSteve French work->credits_granted += credits_granted; 35638c8a9a5SSteve French 35738c8a9a5SSteve French if (!req_hdr->NextCommand) { 35838c8a9a5SSteve French /* Update CreditRequest in last request */ 35938c8a9a5SSteve French hdr->CreditRequest = cpu_to_le16(work->credits_granted); 36038c8a9a5SSteve French } 36138c8a9a5SSteve French ksmbd_debug(SMB, 36238c8a9a5SSteve French "credits: requested[%d] granted[%d] total_granted[%d]\n", 36338c8a9a5SSteve French credits_requested, credits_granted, 36438c8a9a5SSteve French conn->total_credits); 36538c8a9a5SSteve French return 0; 36638c8a9a5SSteve French } 36738c8a9a5SSteve French 36838c8a9a5SSteve French /** 36938c8a9a5SSteve French * init_chained_smb2_rsp() - initialize smb2 chained response 37038c8a9a5SSteve French * @work: smb work containing smb response buffer 37138c8a9a5SSteve French */ 37238c8a9a5SSteve French static void init_chained_smb2_rsp(struct ksmbd_work *work) 37338c8a9a5SSteve French { 37438c8a9a5SSteve French struct smb2_hdr *req = ksmbd_req_buf_next(work); 37538c8a9a5SSteve French struct smb2_hdr *rsp = ksmbd_resp_buf_next(work); 37638c8a9a5SSteve French struct smb2_hdr *rsp_hdr; 37738c8a9a5SSteve French struct smb2_hdr *rcv_hdr; 37838c8a9a5SSteve French int next_hdr_offset = 0; 37938c8a9a5SSteve French int len, new_len; 38038c8a9a5SSteve French 38138c8a9a5SSteve French /* Len of this response = updated RFC len - offset of previous cmd 38238c8a9a5SSteve French * in the compound rsp 38338c8a9a5SSteve French */ 38438c8a9a5SSteve French 38538c8a9a5SSteve French /* Storing the current local FID which may be needed by subsequent 38638c8a9a5SSteve French * command in the compound request 38738c8a9a5SSteve French */ 38838c8a9a5SSteve French if (req->Command == SMB2_CREATE && rsp->Status == STATUS_SUCCESS) { 38938c8a9a5SSteve French work->compound_fid = ((struct smb2_create_rsp *)rsp)->VolatileFileId; 39038c8a9a5SSteve French work->compound_pfid = ((struct smb2_create_rsp *)rsp)->PersistentFileId; 39138c8a9a5SSteve French work->compound_sid = le64_to_cpu(rsp->SessionId); 39238c8a9a5SSteve French } 39338c8a9a5SSteve French 39438c8a9a5SSteve French len = get_rfc1002_len(work->response_buf) - work->next_smb2_rsp_hdr_off; 39538c8a9a5SSteve French next_hdr_offset = le32_to_cpu(req->NextCommand); 39638c8a9a5SSteve French 39738c8a9a5SSteve French new_len = ALIGN(len, 8); 398e2b76ab8SNamjae Jeon work->iov[work->iov_idx].iov_len += (new_len - len); 399e2b76ab8SNamjae Jeon inc_rfc1001_len(work->response_buf, new_len - len); 40038c8a9a5SSteve French rsp->NextCommand = cpu_to_le32(new_len); 40138c8a9a5SSteve French 40238c8a9a5SSteve French work->next_smb2_rcv_hdr_off += next_hdr_offset; 403e2b76ab8SNamjae Jeon work->curr_smb2_rsp_hdr_off = work->next_smb2_rsp_hdr_off; 40438c8a9a5SSteve French work->next_smb2_rsp_hdr_off += new_len; 40538c8a9a5SSteve French ksmbd_debug(SMB, 40638c8a9a5SSteve French "Compound req new_len = %d rcv off = %d rsp off = %d\n", 40738c8a9a5SSteve French new_len, work->next_smb2_rcv_hdr_off, 40838c8a9a5SSteve French work->next_smb2_rsp_hdr_off); 40938c8a9a5SSteve French 41038c8a9a5SSteve French rsp_hdr = ksmbd_resp_buf_next(work); 41138c8a9a5SSteve French rcv_hdr = ksmbd_req_buf_next(work); 41238c8a9a5SSteve French 41338c8a9a5SSteve French if (!(rcv_hdr->Flags & SMB2_FLAGS_RELATED_OPERATIONS)) { 41438c8a9a5SSteve French ksmbd_debug(SMB, "related flag should be set\n"); 41538c8a9a5SSteve French work->compound_fid = KSMBD_NO_FID; 41638c8a9a5SSteve French work->compound_pfid = KSMBD_NO_FID; 41738c8a9a5SSteve French } 41838c8a9a5SSteve French memset((char *)rsp_hdr, 0, sizeof(struct smb2_hdr) + 2); 41938c8a9a5SSteve French rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER; 42038c8a9a5SSteve French rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE; 42138c8a9a5SSteve French rsp_hdr->Command = rcv_hdr->Command; 42238c8a9a5SSteve French 42338c8a9a5SSteve French /* 42438c8a9a5SSteve French * Message is response. We don't grant oplock yet. 42538c8a9a5SSteve French */ 42638c8a9a5SSteve French rsp_hdr->Flags = (SMB2_FLAGS_SERVER_TO_REDIR | 42738c8a9a5SSteve French SMB2_FLAGS_RELATED_OPERATIONS); 42838c8a9a5SSteve French rsp_hdr->NextCommand = 0; 42938c8a9a5SSteve French rsp_hdr->MessageId = rcv_hdr->MessageId; 43038c8a9a5SSteve French rsp_hdr->Id.SyncId.ProcessId = rcv_hdr->Id.SyncId.ProcessId; 43138c8a9a5SSteve French rsp_hdr->Id.SyncId.TreeId = rcv_hdr->Id.SyncId.TreeId; 43238c8a9a5SSteve French rsp_hdr->SessionId = rcv_hdr->SessionId; 43338c8a9a5SSteve French memcpy(rsp_hdr->Signature, rcv_hdr->Signature, 16); 43438c8a9a5SSteve French } 43538c8a9a5SSteve French 43638c8a9a5SSteve French /** 43738c8a9a5SSteve French * is_chained_smb2_message() - check for chained command 43838c8a9a5SSteve French * @work: smb work containing smb request buffer 43938c8a9a5SSteve French * 44038c8a9a5SSteve French * Return: true if chained request, otherwise false 44138c8a9a5SSteve French */ 44238c8a9a5SSteve French bool is_chained_smb2_message(struct ksmbd_work *work) 44338c8a9a5SSteve French { 44438c8a9a5SSteve French struct smb2_hdr *hdr = smb2_get_msg(work->request_buf); 44538c8a9a5SSteve French unsigned int len, next_cmd; 44638c8a9a5SSteve French 44738c8a9a5SSteve French if (hdr->ProtocolId != SMB2_PROTO_NUMBER) 44838c8a9a5SSteve French return false; 44938c8a9a5SSteve French 45038c8a9a5SSteve French hdr = ksmbd_req_buf_next(work); 45138c8a9a5SSteve French next_cmd = le32_to_cpu(hdr->NextCommand); 45238c8a9a5SSteve French if (next_cmd > 0) { 45338c8a9a5SSteve French if ((u64)work->next_smb2_rcv_hdr_off + next_cmd + 45438c8a9a5SSteve French __SMB2_HEADER_STRUCTURE_SIZE > 45538c8a9a5SSteve French get_rfc1002_len(work->request_buf)) { 45638c8a9a5SSteve French pr_err("next command(%u) offset exceeds smb msg size\n", 45738c8a9a5SSteve French next_cmd); 45838c8a9a5SSteve French return false; 45938c8a9a5SSteve French } 46038c8a9a5SSteve French 46138c8a9a5SSteve French if ((u64)get_rfc1002_len(work->response_buf) + MAX_CIFS_SMALL_BUFFER_SIZE > 46238c8a9a5SSteve French work->response_sz) { 46338c8a9a5SSteve French pr_err("next response offset exceeds response buffer size\n"); 46438c8a9a5SSteve French return false; 46538c8a9a5SSteve French } 46638c8a9a5SSteve French 46738c8a9a5SSteve French ksmbd_debug(SMB, "got SMB2 chained command\n"); 46838c8a9a5SSteve French init_chained_smb2_rsp(work); 46938c8a9a5SSteve French return true; 47038c8a9a5SSteve French } else if (work->next_smb2_rcv_hdr_off) { 47138c8a9a5SSteve French /* 47238c8a9a5SSteve French * This is last request in chained command, 47338c8a9a5SSteve French * align response to 8 byte 47438c8a9a5SSteve French */ 47538c8a9a5SSteve French len = ALIGN(get_rfc1002_len(work->response_buf), 8); 47638c8a9a5SSteve French len = len - get_rfc1002_len(work->response_buf); 47738c8a9a5SSteve French if (len) { 47838c8a9a5SSteve French ksmbd_debug(SMB, "padding len %u\n", len); 479e2b76ab8SNamjae Jeon work->iov[work->iov_idx].iov_len += len; 48038c8a9a5SSteve French inc_rfc1001_len(work->response_buf, len); 48138c8a9a5SSteve French } 482e2b76ab8SNamjae Jeon work->curr_smb2_rsp_hdr_off = work->next_smb2_rsp_hdr_off; 48338c8a9a5SSteve French } 48438c8a9a5SSteve French return false; 48538c8a9a5SSteve French } 48638c8a9a5SSteve French 48738c8a9a5SSteve French /** 48838c8a9a5SSteve French * init_smb2_rsp_hdr() - initialize smb2 response 48938c8a9a5SSteve French * @work: smb work containing smb request buffer 49038c8a9a5SSteve French * 49138c8a9a5SSteve French * Return: 0 49238c8a9a5SSteve French */ 49338c8a9a5SSteve French int init_smb2_rsp_hdr(struct ksmbd_work *work) 49438c8a9a5SSteve French { 49538c8a9a5SSteve French struct smb2_hdr *rsp_hdr = smb2_get_msg(work->response_buf); 49638c8a9a5SSteve French struct smb2_hdr *rcv_hdr = smb2_get_msg(work->request_buf); 49738c8a9a5SSteve French 49838c8a9a5SSteve French memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2); 49938c8a9a5SSteve French rsp_hdr->ProtocolId = rcv_hdr->ProtocolId; 50038c8a9a5SSteve French rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE; 50138c8a9a5SSteve French rsp_hdr->Command = rcv_hdr->Command; 50238c8a9a5SSteve French 50338c8a9a5SSteve French /* 50438c8a9a5SSteve French * Message is response. We don't grant oplock yet. 50538c8a9a5SSteve French */ 50638c8a9a5SSteve French rsp_hdr->Flags = (SMB2_FLAGS_SERVER_TO_REDIR); 50738c8a9a5SSteve French rsp_hdr->NextCommand = 0; 50838c8a9a5SSteve French rsp_hdr->MessageId = rcv_hdr->MessageId; 50938c8a9a5SSteve French rsp_hdr->Id.SyncId.ProcessId = rcv_hdr->Id.SyncId.ProcessId; 51038c8a9a5SSteve French rsp_hdr->Id.SyncId.TreeId = rcv_hdr->Id.SyncId.TreeId; 51138c8a9a5SSteve French rsp_hdr->SessionId = rcv_hdr->SessionId; 51238c8a9a5SSteve French memcpy(rsp_hdr->Signature, rcv_hdr->Signature, 16); 51338c8a9a5SSteve French 51438c8a9a5SSteve French return 0; 51538c8a9a5SSteve French } 51638c8a9a5SSteve French 51738c8a9a5SSteve French /** 51838c8a9a5SSteve French * smb2_allocate_rsp_buf() - allocate smb2 response buffer 51938c8a9a5SSteve French * @work: smb work containing smb request buffer 52038c8a9a5SSteve French * 52138c8a9a5SSteve French * Return: 0 on success, otherwise -ENOMEM 52238c8a9a5SSteve French */ 52338c8a9a5SSteve French int smb2_allocate_rsp_buf(struct ksmbd_work *work) 52438c8a9a5SSteve French { 52538c8a9a5SSteve French struct smb2_hdr *hdr = smb2_get_msg(work->request_buf); 52638c8a9a5SSteve French size_t small_sz = MAX_CIFS_SMALL_BUFFER_SIZE; 52738c8a9a5SSteve French size_t large_sz = small_sz + work->conn->vals->max_trans_size; 52838c8a9a5SSteve French size_t sz = small_sz; 52938c8a9a5SSteve French int cmd = le16_to_cpu(hdr->Command); 53038c8a9a5SSteve French 53138c8a9a5SSteve French if (cmd == SMB2_IOCTL_HE || cmd == SMB2_QUERY_DIRECTORY_HE) 53238c8a9a5SSteve French sz = large_sz; 53338c8a9a5SSteve French 53438c8a9a5SSteve French if (cmd == SMB2_QUERY_INFO_HE) { 53538c8a9a5SSteve French struct smb2_query_info_req *req; 53638c8a9a5SSteve French 53738c8a9a5SSteve French req = smb2_get_msg(work->request_buf); 53838c8a9a5SSteve French if ((req->InfoType == SMB2_O_INFO_FILE && 53938c8a9a5SSteve French (req->FileInfoClass == FILE_FULL_EA_INFORMATION || 54038c8a9a5SSteve French req->FileInfoClass == FILE_ALL_INFORMATION)) || 54138c8a9a5SSteve French req->InfoType == SMB2_O_INFO_SECURITY) 54238c8a9a5SSteve French sz = large_sz; 54338c8a9a5SSteve French } 54438c8a9a5SSteve French 54538c8a9a5SSteve French /* allocate large response buf for chained commands */ 54638c8a9a5SSteve French if (le32_to_cpu(hdr->NextCommand) > 0) 54738c8a9a5SSteve French sz = large_sz; 54838c8a9a5SSteve French 54981a94b27SNamjae Jeon work->response_buf = kvzalloc(sz, GFP_KERNEL); 55038c8a9a5SSteve French if (!work->response_buf) 55138c8a9a5SSteve French return -ENOMEM; 55238c8a9a5SSteve French 55338c8a9a5SSteve French work->response_sz = sz; 55438c8a9a5SSteve French return 0; 55538c8a9a5SSteve French } 55638c8a9a5SSteve French 55738c8a9a5SSteve French /** 55838c8a9a5SSteve French * smb2_check_user_session() - check for valid session for a user 55938c8a9a5SSteve French * @work: smb work containing smb request buffer 56038c8a9a5SSteve French * 56138c8a9a5SSteve French * Return: 0 on success, otherwise error 56238c8a9a5SSteve French */ 56338c8a9a5SSteve French int smb2_check_user_session(struct ksmbd_work *work) 56438c8a9a5SSteve French { 5653df0411eSNamjae Jeon struct smb2_hdr *req_hdr = ksmbd_req_buf_next(work); 56638c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 5673df0411eSNamjae Jeon unsigned int cmd = le16_to_cpu(req_hdr->Command); 56838c8a9a5SSteve French unsigned long long sess_id; 56938c8a9a5SSteve French 57038c8a9a5SSteve French /* 57138c8a9a5SSteve French * SMB2_ECHO, SMB2_NEGOTIATE, SMB2_SESSION_SETUP command do not 57238c8a9a5SSteve French * require a session id, so no need to validate user session's for 57338c8a9a5SSteve French * these commands. 57438c8a9a5SSteve French */ 57538c8a9a5SSteve French if (cmd == SMB2_ECHO_HE || cmd == SMB2_NEGOTIATE_HE || 57638c8a9a5SSteve French cmd == SMB2_SESSION_SETUP_HE) 57738c8a9a5SSteve French return 0; 57838c8a9a5SSteve French 57938c8a9a5SSteve French if (!ksmbd_conn_good(conn)) 5805005bcb4SNamjae Jeon return -EIO; 58138c8a9a5SSteve French 58238c8a9a5SSteve French sess_id = le64_to_cpu(req_hdr->SessionId); 5835005bcb4SNamjae Jeon 5845005bcb4SNamjae Jeon /* 5855005bcb4SNamjae Jeon * If request is not the first in Compound request, 5865005bcb4SNamjae Jeon * Just validate session id in header with work->sess->id. 5875005bcb4SNamjae Jeon */ 5885005bcb4SNamjae Jeon if (work->next_smb2_rcv_hdr_off) { 5895005bcb4SNamjae Jeon if (!work->sess) { 5905005bcb4SNamjae Jeon pr_err("The first operation in the compound does not have sess\n"); 5915005bcb4SNamjae Jeon return -EINVAL; 5925005bcb4SNamjae Jeon } 5933df0411eSNamjae Jeon if (sess_id != ULLONG_MAX && work->sess->id != sess_id) { 5945005bcb4SNamjae Jeon pr_err("session id(%llu) is different with the first operation(%lld)\n", 5955005bcb4SNamjae Jeon sess_id, work->sess->id); 5965005bcb4SNamjae Jeon return -EINVAL; 5975005bcb4SNamjae Jeon } 5985005bcb4SNamjae Jeon return 1; 5995005bcb4SNamjae Jeon } 6005005bcb4SNamjae Jeon 60138c8a9a5SSteve French /* Check for validity of user session */ 60238c8a9a5SSteve French work->sess = ksmbd_session_lookup_all(conn, sess_id); 60338c8a9a5SSteve French if (work->sess) 60438c8a9a5SSteve French return 1; 60538c8a9a5SSteve French ksmbd_debug(SMB, "Invalid user session, Uid %llu\n", sess_id); 6065005bcb4SNamjae Jeon return -ENOENT; 60738c8a9a5SSteve French } 60838c8a9a5SSteve French 60938c8a9a5SSteve French static void destroy_previous_session(struct ksmbd_conn *conn, 61038c8a9a5SSteve French struct ksmbd_user *user, u64 id) 61138c8a9a5SSteve French { 61238c8a9a5SSteve French struct ksmbd_session *prev_sess = ksmbd_session_lookup_slowpath(id); 61338c8a9a5SSteve French struct ksmbd_user *prev_user; 61438c8a9a5SSteve French struct channel *chann; 61538c8a9a5SSteve French long index; 61638c8a9a5SSteve French 61738c8a9a5SSteve French if (!prev_sess) 61838c8a9a5SSteve French return; 61938c8a9a5SSteve French 62038c8a9a5SSteve French prev_user = prev_sess->user; 62138c8a9a5SSteve French 62238c8a9a5SSteve French if (!prev_user || 62338c8a9a5SSteve French strcmp(user->name, prev_user->name) || 62438c8a9a5SSteve French user->passkey_sz != prev_user->passkey_sz || 62538c8a9a5SSteve French memcmp(user->passkey, prev_user->passkey, user->passkey_sz)) 62638c8a9a5SSteve French return; 62738c8a9a5SSteve French 62838c8a9a5SSteve French prev_sess->state = SMB2_SESSION_EXPIRED; 62938c8a9a5SSteve French xa_for_each(&prev_sess->ksmbd_chann_list, index, chann) 63038c8a9a5SSteve French ksmbd_conn_set_exiting(chann->conn); 63138c8a9a5SSteve French } 63238c8a9a5SSteve French 63338c8a9a5SSteve French /** 63438c8a9a5SSteve French * smb2_get_name() - get filename string from on the wire smb format 63538c8a9a5SSteve French * @src: source buffer 63638c8a9a5SSteve French * @maxlen: maxlen of source string 63738c8a9a5SSteve French * @local_nls: nls_table pointer 63838c8a9a5SSteve French * 63938c8a9a5SSteve French * Return: matching converted filename on success, otherwise error ptr 64038c8a9a5SSteve French */ 64138c8a9a5SSteve French static char * 64238c8a9a5SSteve French smb2_get_name(const char *src, const int maxlen, struct nls_table *local_nls) 64338c8a9a5SSteve French { 64438c8a9a5SSteve French char *name; 64538c8a9a5SSteve French 64638c8a9a5SSteve French name = smb_strndup_from_utf16(src, maxlen, 1, local_nls); 64738c8a9a5SSteve French if (IS_ERR(name)) { 64838c8a9a5SSteve French pr_err("failed to get name %ld\n", PTR_ERR(name)); 64938c8a9a5SSteve French return name; 65038c8a9a5SSteve French } 65138c8a9a5SSteve French 65238c8a9a5SSteve French ksmbd_conv_path_to_unix(name); 65338c8a9a5SSteve French ksmbd_strip_last_slash(name); 65438c8a9a5SSteve French return name; 65538c8a9a5SSteve French } 65638c8a9a5SSteve French 65738c8a9a5SSteve French int setup_async_work(struct ksmbd_work *work, void (*fn)(void **), void **arg) 65838c8a9a5SSteve French { 65938c8a9a5SSteve French struct smb2_hdr *rsp_hdr; 66038c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 66138c8a9a5SSteve French int id; 66238c8a9a5SSteve French 663e2b76ab8SNamjae Jeon rsp_hdr = ksmbd_resp_buf_next(work); 66438c8a9a5SSteve French rsp_hdr->Flags |= SMB2_FLAGS_ASYNC_COMMAND; 66538c8a9a5SSteve French 66638c8a9a5SSteve French id = ksmbd_acquire_async_msg_id(&conn->async_ida); 66738c8a9a5SSteve French if (id < 0) { 66838c8a9a5SSteve French pr_err("Failed to alloc async message id\n"); 66938c8a9a5SSteve French return id; 67038c8a9a5SSteve French } 67138c8a9a5SSteve French work->asynchronous = true; 67238c8a9a5SSteve French work->async_id = id; 67338c8a9a5SSteve French rsp_hdr->Id.AsyncId = cpu_to_le64(id); 67438c8a9a5SSteve French 67538c8a9a5SSteve French ksmbd_debug(SMB, 67638c8a9a5SSteve French "Send interim Response to inform async request id : %d\n", 67738c8a9a5SSteve French work->async_id); 67838c8a9a5SSteve French 67938c8a9a5SSteve French work->cancel_fn = fn; 68038c8a9a5SSteve French work->cancel_argv = arg; 68138c8a9a5SSteve French 68238c8a9a5SSteve French if (list_empty(&work->async_request_entry)) { 68338c8a9a5SSteve French spin_lock(&conn->request_lock); 68438c8a9a5SSteve French list_add_tail(&work->async_request_entry, &conn->async_requests); 68538c8a9a5SSteve French spin_unlock(&conn->request_lock); 68638c8a9a5SSteve French } 68738c8a9a5SSteve French 68838c8a9a5SSteve French return 0; 68938c8a9a5SSteve French } 69038c8a9a5SSteve French 69138c8a9a5SSteve French void release_async_work(struct ksmbd_work *work) 69238c8a9a5SSteve French { 69338c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 69438c8a9a5SSteve French 69538c8a9a5SSteve French spin_lock(&conn->request_lock); 69638c8a9a5SSteve French list_del_init(&work->async_request_entry); 69738c8a9a5SSteve French spin_unlock(&conn->request_lock); 69838c8a9a5SSteve French 69938c8a9a5SSteve French work->asynchronous = 0; 70038c8a9a5SSteve French work->cancel_fn = NULL; 70138c8a9a5SSteve French kfree(work->cancel_argv); 70238c8a9a5SSteve French work->cancel_argv = NULL; 70338c8a9a5SSteve French if (work->async_id) { 70438c8a9a5SSteve French ksmbd_release_id(&conn->async_ida, work->async_id); 70538c8a9a5SSteve French work->async_id = 0; 70638c8a9a5SSteve French } 70738c8a9a5SSteve French } 70838c8a9a5SSteve French 70938c8a9a5SSteve French void smb2_send_interim_resp(struct ksmbd_work *work, __le32 status) 71038c8a9a5SSteve French { 71138c8a9a5SSteve French struct smb2_hdr *rsp_hdr; 712041bba44SNamjae Jeon struct ksmbd_work *in_work = ksmbd_alloc_work_struct(); 71338c8a9a5SSteve French 714041bba44SNamjae Jeon if (allocate_interim_rsp_buf(in_work)) { 715041bba44SNamjae Jeon pr_err("smb_allocate_rsp_buf failed!\n"); 716041bba44SNamjae Jeon ksmbd_free_work_struct(in_work); 717041bba44SNamjae Jeon return; 718041bba44SNamjae Jeon } 719041bba44SNamjae Jeon 720041bba44SNamjae Jeon in_work->conn = work->conn; 721041bba44SNamjae Jeon memcpy(smb2_get_msg(in_work->response_buf), ksmbd_resp_buf_next(work), 722041bba44SNamjae Jeon __SMB2_HEADER_STRUCTURE_SIZE); 723041bba44SNamjae Jeon 724041bba44SNamjae Jeon rsp_hdr = smb2_get_msg(in_work->response_buf); 725041bba44SNamjae Jeon smb2_set_err_rsp(in_work); 72638c8a9a5SSteve French rsp_hdr->Status = status; 72738c8a9a5SSteve French 728041bba44SNamjae Jeon ksmbd_conn_write(in_work); 729041bba44SNamjae Jeon ksmbd_free_work_struct(in_work); 73038c8a9a5SSteve French } 73138c8a9a5SSteve French 73238c8a9a5SSteve French static __le32 smb2_get_reparse_tag_special_file(umode_t mode) 73338c8a9a5SSteve French { 73438c8a9a5SSteve French if (S_ISDIR(mode) || S_ISREG(mode)) 73538c8a9a5SSteve French return 0; 73638c8a9a5SSteve French 73738c8a9a5SSteve French if (S_ISLNK(mode)) 73838c8a9a5SSteve French return IO_REPARSE_TAG_LX_SYMLINK_LE; 73938c8a9a5SSteve French else if (S_ISFIFO(mode)) 74038c8a9a5SSteve French return IO_REPARSE_TAG_LX_FIFO_LE; 74138c8a9a5SSteve French else if (S_ISSOCK(mode)) 74238c8a9a5SSteve French return IO_REPARSE_TAG_AF_UNIX_LE; 74338c8a9a5SSteve French else if (S_ISCHR(mode)) 74438c8a9a5SSteve French return IO_REPARSE_TAG_LX_CHR_LE; 74538c8a9a5SSteve French else if (S_ISBLK(mode)) 74638c8a9a5SSteve French return IO_REPARSE_TAG_LX_BLK_LE; 74738c8a9a5SSteve French 74838c8a9a5SSteve French return 0; 74938c8a9a5SSteve French } 75038c8a9a5SSteve French 75138c8a9a5SSteve French /** 75238c8a9a5SSteve French * smb2_get_dos_mode() - get file mode in dos format from unix mode 75338c8a9a5SSteve French * @stat: kstat containing file mode 75438c8a9a5SSteve French * @attribute: attribute flags 75538c8a9a5SSteve French * 75638c8a9a5SSteve French * Return: converted dos mode 75738c8a9a5SSteve French */ 75838c8a9a5SSteve French static int smb2_get_dos_mode(struct kstat *stat, int attribute) 75938c8a9a5SSteve French { 76038c8a9a5SSteve French int attr = 0; 76138c8a9a5SSteve French 76238c8a9a5SSteve French if (S_ISDIR(stat->mode)) { 76338c8a9a5SSteve French attr = FILE_ATTRIBUTE_DIRECTORY | 76438c8a9a5SSteve French (attribute & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)); 76538c8a9a5SSteve French } else { 76638c8a9a5SSteve French attr = (attribute & 0x00005137) | FILE_ATTRIBUTE_ARCHIVE; 76738c8a9a5SSteve French attr &= ~(FILE_ATTRIBUTE_DIRECTORY); 76838c8a9a5SSteve French if (S_ISREG(stat->mode) && (server_conf.share_fake_fscaps & 76938c8a9a5SSteve French FILE_SUPPORTS_SPARSE_FILES)) 77038c8a9a5SSteve French attr |= FILE_ATTRIBUTE_SPARSE_FILE; 77138c8a9a5SSteve French 77238c8a9a5SSteve French if (smb2_get_reparse_tag_special_file(stat->mode)) 77338c8a9a5SSteve French attr |= FILE_ATTRIBUTE_REPARSE_POINT; 77438c8a9a5SSteve French } 77538c8a9a5SSteve French 77638c8a9a5SSteve French return attr; 77738c8a9a5SSteve French } 77838c8a9a5SSteve French 77938c8a9a5SSteve French static void build_preauth_ctxt(struct smb2_preauth_neg_context *pneg_ctxt, 78038c8a9a5SSteve French __le16 hash_id) 78138c8a9a5SSteve French { 78238c8a9a5SSteve French pneg_ctxt->ContextType = SMB2_PREAUTH_INTEGRITY_CAPABILITIES; 78338c8a9a5SSteve French pneg_ctxt->DataLength = cpu_to_le16(38); 78438c8a9a5SSteve French pneg_ctxt->HashAlgorithmCount = cpu_to_le16(1); 78538c8a9a5SSteve French pneg_ctxt->Reserved = cpu_to_le32(0); 78638c8a9a5SSteve French pneg_ctxt->SaltLength = cpu_to_le16(SMB311_SALT_SIZE); 78738c8a9a5SSteve French get_random_bytes(pneg_ctxt->Salt, SMB311_SALT_SIZE); 78838c8a9a5SSteve French pneg_ctxt->HashAlgorithms = hash_id; 78938c8a9a5SSteve French } 79038c8a9a5SSteve French 79138c8a9a5SSteve French static void build_encrypt_ctxt(struct smb2_encryption_neg_context *pneg_ctxt, 79238c8a9a5SSteve French __le16 cipher_type) 79338c8a9a5SSteve French { 79438c8a9a5SSteve French pneg_ctxt->ContextType = SMB2_ENCRYPTION_CAPABILITIES; 79538c8a9a5SSteve French pneg_ctxt->DataLength = cpu_to_le16(4); 79638c8a9a5SSteve French pneg_ctxt->Reserved = cpu_to_le32(0); 79738c8a9a5SSteve French pneg_ctxt->CipherCount = cpu_to_le16(1); 79838c8a9a5SSteve French pneg_ctxt->Ciphers[0] = cipher_type; 79938c8a9a5SSteve French } 80038c8a9a5SSteve French 80138c8a9a5SSteve French static void build_sign_cap_ctxt(struct smb2_signing_capabilities *pneg_ctxt, 80238c8a9a5SSteve French __le16 sign_algo) 80338c8a9a5SSteve French { 80438c8a9a5SSteve French pneg_ctxt->ContextType = SMB2_SIGNING_CAPABILITIES; 80538c8a9a5SSteve French pneg_ctxt->DataLength = 80638c8a9a5SSteve French cpu_to_le16((sizeof(struct smb2_signing_capabilities) + 2) 80738c8a9a5SSteve French - sizeof(struct smb2_neg_context)); 80838c8a9a5SSteve French pneg_ctxt->Reserved = cpu_to_le32(0); 80938c8a9a5SSteve French pneg_ctxt->SigningAlgorithmCount = cpu_to_le16(1); 81038c8a9a5SSteve French pneg_ctxt->SigningAlgorithms[0] = sign_algo; 81138c8a9a5SSteve French } 81238c8a9a5SSteve French 81338c8a9a5SSteve French static void build_posix_ctxt(struct smb2_posix_neg_context *pneg_ctxt) 81438c8a9a5SSteve French { 81538c8a9a5SSteve French pneg_ctxt->ContextType = SMB2_POSIX_EXTENSIONS_AVAILABLE; 81638c8a9a5SSteve French pneg_ctxt->DataLength = cpu_to_le16(POSIX_CTXT_DATA_LEN); 81738c8a9a5SSteve French /* SMB2_CREATE_TAG_POSIX is "0x93AD25509CB411E7B42383DE968BCD7C" */ 81838c8a9a5SSteve French pneg_ctxt->Name[0] = 0x93; 81938c8a9a5SSteve French pneg_ctxt->Name[1] = 0xAD; 82038c8a9a5SSteve French pneg_ctxt->Name[2] = 0x25; 82138c8a9a5SSteve French pneg_ctxt->Name[3] = 0x50; 82238c8a9a5SSteve French pneg_ctxt->Name[4] = 0x9C; 82338c8a9a5SSteve French pneg_ctxt->Name[5] = 0xB4; 82438c8a9a5SSteve French pneg_ctxt->Name[6] = 0x11; 82538c8a9a5SSteve French pneg_ctxt->Name[7] = 0xE7; 82638c8a9a5SSteve French pneg_ctxt->Name[8] = 0xB4; 82738c8a9a5SSteve French pneg_ctxt->Name[9] = 0x23; 82838c8a9a5SSteve French pneg_ctxt->Name[10] = 0x83; 82938c8a9a5SSteve French pneg_ctxt->Name[11] = 0xDE; 83038c8a9a5SSteve French pneg_ctxt->Name[12] = 0x96; 83138c8a9a5SSteve French pneg_ctxt->Name[13] = 0x8B; 83238c8a9a5SSteve French pneg_ctxt->Name[14] = 0xCD; 83338c8a9a5SSteve French pneg_ctxt->Name[15] = 0x7C; 83438c8a9a5SSteve French } 83538c8a9a5SSteve French 836e2b76ab8SNamjae Jeon static unsigned int assemble_neg_contexts(struct ksmbd_conn *conn, 837e2b76ab8SNamjae Jeon struct smb2_negotiate_rsp *rsp) 83838c8a9a5SSteve French { 83938c8a9a5SSteve French char * const pneg_ctxt = (char *)rsp + 84038c8a9a5SSteve French le32_to_cpu(rsp->NegotiateContextOffset); 84138c8a9a5SSteve French int neg_ctxt_cnt = 1; 84238c8a9a5SSteve French int ctxt_size; 84338c8a9a5SSteve French 84438c8a9a5SSteve French ksmbd_debug(SMB, 84538c8a9a5SSteve French "assemble SMB2_PREAUTH_INTEGRITY_CAPABILITIES context\n"); 84638c8a9a5SSteve French build_preauth_ctxt((struct smb2_preauth_neg_context *)pneg_ctxt, 84738c8a9a5SSteve French conn->preauth_info->Preauth_HashId); 84838c8a9a5SSteve French ctxt_size = sizeof(struct smb2_preauth_neg_context); 84938c8a9a5SSteve French 85038c8a9a5SSteve French if (conn->cipher_type) { 85138c8a9a5SSteve French /* Round to 8 byte boundary */ 85238c8a9a5SSteve French ctxt_size = round_up(ctxt_size, 8); 85338c8a9a5SSteve French ksmbd_debug(SMB, 85438c8a9a5SSteve French "assemble SMB2_ENCRYPTION_CAPABILITIES context\n"); 85538c8a9a5SSteve French build_encrypt_ctxt((struct smb2_encryption_neg_context *) 85638c8a9a5SSteve French (pneg_ctxt + ctxt_size), 85738c8a9a5SSteve French conn->cipher_type); 85838c8a9a5SSteve French neg_ctxt_cnt++; 85938c8a9a5SSteve French ctxt_size += sizeof(struct smb2_encryption_neg_context) + 2; 86038c8a9a5SSteve French } 86138c8a9a5SSteve French 86238c8a9a5SSteve French /* compression context not yet supported */ 86338c8a9a5SSteve French WARN_ON(conn->compress_algorithm != SMB3_COMPRESS_NONE); 86438c8a9a5SSteve French 86538c8a9a5SSteve French if (conn->posix_ext_supported) { 86638c8a9a5SSteve French ctxt_size = round_up(ctxt_size, 8); 86738c8a9a5SSteve French ksmbd_debug(SMB, 86838c8a9a5SSteve French "assemble SMB2_POSIX_EXTENSIONS_AVAILABLE context\n"); 86938c8a9a5SSteve French build_posix_ctxt((struct smb2_posix_neg_context *) 87038c8a9a5SSteve French (pneg_ctxt + ctxt_size)); 87138c8a9a5SSteve French neg_ctxt_cnt++; 87238c8a9a5SSteve French ctxt_size += sizeof(struct smb2_posix_neg_context); 87338c8a9a5SSteve French } 87438c8a9a5SSteve French 87538c8a9a5SSteve French if (conn->signing_negotiated) { 87638c8a9a5SSteve French ctxt_size = round_up(ctxt_size, 8); 87738c8a9a5SSteve French ksmbd_debug(SMB, 87838c8a9a5SSteve French "assemble SMB2_SIGNING_CAPABILITIES context\n"); 87938c8a9a5SSteve French build_sign_cap_ctxt((struct smb2_signing_capabilities *) 88038c8a9a5SSteve French (pneg_ctxt + ctxt_size), 88138c8a9a5SSteve French conn->signing_algorithm); 88238c8a9a5SSteve French neg_ctxt_cnt++; 88338c8a9a5SSteve French ctxt_size += sizeof(struct smb2_signing_capabilities) + 2; 88438c8a9a5SSteve French } 88538c8a9a5SSteve French 88638c8a9a5SSteve French rsp->NegotiateContextCount = cpu_to_le16(neg_ctxt_cnt); 887e2b76ab8SNamjae Jeon return ctxt_size + AUTH_GSS_PADDING; 88838c8a9a5SSteve French } 88938c8a9a5SSteve French 89038c8a9a5SSteve French static __le32 decode_preauth_ctxt(struct ksmbd_conn *conn, 89138c8a9a5SSteve French struct smb2_preauth_neg_context *pneg_ctxt, 8920512a5f8SKuan-Ting Chen int ctxt_len) 89338c8a9a5SSteve French { 89438c8a9a5SSteve French /* 89538c8a9a5SSteve French * sizeof(smb2_preauth_neg_context) assumes SMB311_SALT_SIZE Salt, 89638c8a9a5SSteve French * which may not be present. Only check for used HashAlgorithms[1]. 89738c8a9a5SSteve French */ 8980512a5f8SKuan-Ting Chen if (ctxt_len < 8990512a5f8SKuan-Ting Chen sizeof(struct smb2_neg_context) + MIN_PREAUTH_CTXT_DATA_LEN) 90038c8a9a5SSteve French return STATUS_INVALID_PARAMETER; 90138c8a9a5SSteve French 90238c8a9a5SSteve French if (pneg_ctxt->HashAlgorithms != SMB2_PREAUTH_INTEGRITY_SHA512) 90338c8a9a5SSteve French return STATUS_NO_PREAUTH_INTEGRITY_HASH_OVERLAP; 90438c8a9a5SSteve French 90538c8a9a5SSteve French conn->preauth_info->Preauth_HashId = SMB2_PREAUTH_INTEGRITY_SHA512; 90638c8a9a5SSteve French return STATUS_SUCCESS; 90738c8a9a5SSteve French } 90838c8a9a5SSteve French 90938c8a9a5SSteve French static void decode_encrypt_ctxt(struct ksmbd_conn *conn, 91038c8a9a5SSteve French struct smb2_encryption_neg_context *pneg_ctxt, 9110512a5f8SKuan-Ting Chen int ctxt_len) 91238c8a9a5SSteve French { 9130512a5f8SKuan-Ting Chen int cph_cnt; 9140512a5f8SKuan-Ting Chen int i, cphs_size; 9150512a5f8SKuan-Ting Chen 9160512a5f8SKuan-Ting Chen if (sizeof(struct smb2_encryption_neg_context) > ctxt_len) { 9170512a5f8SKuan-Ting Chen pr_err("Invalid SMB2_ENCRYPTION_CAPABILITIES context size\n"); 9180512a5f8SKuan-Ting Chen return; 9190512a5f8SKuan-Ting Chen } 92038c8a9a5SSteve French 92138c8a9a5SSteve French conn->cipher_type = 0; 92238c8a9a5SSteve French 9230512a5f8SKuan-Ting Chen cph_cnt = le16_to_cpu(pneg_ctxt->CipherCount); 9240512a5f8SKuan-Ting Chen cphs_size = cph_cnt * sizeof(__le16); 9250512a5f8SKuan-Ting Chen 92638c8a9a5SSteve French if (sizeof(struct smb2_encryption_neg_context) + cphs_size > 9270512a5f8SKuan-Ting Chen ctxt_len) { 92838c8a9a5SSteve French pr_err("Invalid cipher count(%d)\n", cph_cnt); 92938c8a9a5SSteve French return; 93038c8a9a5SSteve French } 93138c8a9a5SSteve French 93238c8a9a5SSteve French if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION_OFF) 93338c8a9a5SSteve French return; 93438c8a9a5SSteve French 93538c8a9a5SSteve French for (i = 0; i < cph_cnt; i++) { 93638c8a9a5SSteve French if (pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES128_GCM || 93738c8a9a5SSteve French pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES128_CCM || 93838c8a9a5SSteve French pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES256_CCM || 93938c8a9a5SSteve French pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES256_GCM) { 94038c8a9a5SSteve French ksmbd_debug(SMB, "Cipher ID = 0x%x\n", 94138c8a9a5SSteve French pneg_ctxt->Ciphers[i]); 94238c8a9a5SSteve French conn->cipher_type = pneg_ctxt->Ciphers[i]; 94338c8a9a5SSteve French break; 94438c8a9a5SSteve French } 94538c8a9a5SSteve French } 94638c8a9a5SSteve French } 94738c8a9a5SSteve French 94838c8a9a5SSteve French /** 94938c8a9a5SSteve French * smb3_encryption_negotiated() - checks if server and client agreed on enabling encryption 95038c8a9a5SSteve French * @conn: smb connection 95138c8a9a5SSteve French * 95238c8a9a5SSteve French * Return: true if connection should be encrypted, else false 95338c8a9a5SSteve French */ 95438c8a9a5SSteve French bool smb3_encryption_negotiated(struct ksmbd_conn *conn) 95538c8a9a5SSteve French { 95638c8a9a5SSteve French if (!conn->ops->generate_encryptionkey) 95738c8a9a5SSteve French return false; 95838c8a9a5SSteve French 95938c8a9a5SSteve French /* 96038c8a9a5SSteve French * SMB 3.0 and 3.0.2 dialects use the SMB2_GLOBAL_CAP_ENCRYPTION flag. 96138c8a9a5SSteve French * SMB 3.1.1 uses the cipher_type field. 96238c8a9a5SSteve French */ 96338c8a9a5SSteve French return (conn->vals->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) || 96438c8a9a5SSteve French conn->cipher_type; 96538c8a9a5SSteve French } 96638c8a9a5SSteve French 96738c8a9a5SSteve French static void decode_compress_ctxt(struct ksmbd_conn *conn, 96838c8a9a5SSteve French struct smb2_compression_capabilities_context *pneg_ctxt) 96938c8a9a5SSteve French { 97038c8a9a5SSteve French conn->compress_algorithm = SMB3_COMPRESS_NONE; 97138c8a9a5SSteve French } 97238c8a9a5SSteve French 97338c8a9a5SSteve French static void decode_sign_cap_ctxt(struct ksmbd_conn *conn, 97438c8a9a5SSteve French struct smb2_signing_capabilities *pneg_ctxt, 9750512a5f8SKuan-Ting Chen int ctxt_len) 97638c8a9a5SSteve French { 9770512a5f8SKuan-Ting Chen int sign_algo_cnt; 9780512a5f8SKuan-Ting Chen int i, sign_alos_size; 9790512a5f8SKuan-Ting Chen 9800512a5f8SKuan-Ting Chen if (sizeof(struct smb2_signing_capabilities) > ctxt_len) { 9810512a5f8SKuan-Ting Chen pr_err("Invalid SMB2_SIGNING_CAPABILITIES context length\n"); 9820512a5f8SKuan-Ting Chen return; 9830512a5f8SKuan-Ting Chen } 98438c8a9a5SSteve French 98538c8a9a5SSteve French conn->signing_negotiated = false; 9860512a5f8SKuan-Ting Chen sign_algo_cnt = le16_to_cpu(pneg_ctxt->SigningAlgorithmCount); 9870512a5f8SKuan-Ting Chen sign_alos_size = sign_algo_cnt * sizeof(__le16); 98838c8a9a5SSteve French 98938c8a9a5SSteve French if (sizeof(struct smb2_signing_capabilities) + sign_alos_size > 9900512a5f8SKuan-Ting Chen ctxt_len) { 99138c8a9a5SSteve French pr_err("Invalid signing algorithm count(%d)\n", sign_algo_cnt); 99238c8a9a5SSteve French return; 99338c8a9a5SSteve French } 99438c8a9a5SSteve French 99538c8a9a5SSteve French for (i = 0; i < sign_algo_cnt; i++) { 99638c8a9a5SSteve French if (pneg_ctxt->SigningAlgorithms[i] == SIGNING_ALG_HMAC_SHA256_LE || 99738c8a9a5SSteve French pneg_ctxt->SigningAlgorithms[i] == SIGNING_ALG_AES_CMAC_LE) { 99838c8a9a5SSteve French ksmbd_debug(SMB, "Signing Algorithm ID = 0x%x\n", 99938c8a9a5SSteve French pneg_ctxt->SigningAlgorithms[i]); 100038c8a9a5SSteve French conn->signing_negotiated = true; 100138c8a9a5SSteve French conn->signing_algorithm = 100238c8a9a5SSteve French pneg_ctxt->SigningAlgorithms[i]; 100338c8a9a5SSteve French break; 100438c8a9a5SSteve French } 100538c8a9a5SSteve French } 100638c8a9a5SSteve French } 100738c8a9a5SSteve French 100838c8a9a5SSteve French static __le32 deassemble_neg_contexts(struct ksmbd_conn *conn, 100938c8a9a5SSteve French struct smb2_negotiate_req *req, 1010f1a41187SNamjae Jeon unsigned int len_of_smb) 101138c8a9a5SSteve French { 101238c8a9a5SSteve French /* +4 is to account for the RFC1001 len field */ 101338c8a9a5SSteve French struct smb2_neg_context *pctx = (struct smb2_neg_context *)req; 101438c8a9a5SSteve French int i = 0, len_of_ctxts; 1015f1a41187SNamjae Jeon unsigned int offset = le32_to_cpu(req->NegotiateContextOffset); 1016f1a41187SNamjae Jeon unsigned int neg_ctxt_cnt = le16_to_cpu(req->NegotiateContextCount); 101738c8a9a5SSteve French __le32 status = STATUS_INVALID_PARAMETER; 101838c8a9a5SSteve French 101938c8a9a5SSteve French ksmbd_debug(SMB, "decoding %d negotiate contexts\n", neg_ctxt_cnt); 102038c8a9a5SSteve French if (len_of_smb <= offset) { 102138c8a9a5SSteve French ksmbd_debug(SMB, "Invalid response: negotiate context offset\n"); 102238c8a9a5SSteve French return status; 102338c8a9a5SSteve French } 102438c8a9a5SSteve French 102538c8a9a5SSteve French len_of_ctxts = len_of_smb - offset; 102638c8a9a5SSteve French 102738c8a9a5SSteve French while (i++ < neg_ctxt_cnt) { 10280512a5f8SKuan-Ting Chen int clen, ctxt_len; 102938c8a9a5SSteve French 1030f1a41187SNamjae Jeon if (len_of_ctxts < (int)sizeof(struct smb2_neg_context)) 103138c8a9a5SSteve French break; 103238c8a9a5SSteve French 103338c8a9a5SSteve French pctx = (struct smb2_neg_context *)((char *)pctx + offset); 103438c8a9a5SSteve French clen = le16_to_cpu(pctx->DataLength); 10350512a5f8SKuan-Ting Chen ctxt_len = clen + sizeof(struct smb2_neg_context); 10360512a5f8SKuan-Ting Chen 10370512a5f8SKuan-Ting Chen if (ctxt_len > len_of_ctxts) 103838c8a9a5SSteve French break; 103938c8a9a5SSteve French 104038c8a9a5SSteve French if (pctx->ContextType == SMB2_PREAUTH_INTEGRITY_CAPABILITIES) { 104138c8a9a5SSteve French ksmbd_debug(SMB, 104238c8a9a5SSteve French "deassemble SMB2_PREAUTH_INTEGRITY_CAPABILITIES context\n"); 104338c8a9a5SSteve French if (conn->preauth_info->Preauth_HashId) 104438c8a9a5SSteve French break; 104538c8a9a5SSteve French 104638c8a9a5SSteve French status = decode_preauth_ctxt(conn, 104738c8a9a5SSteve French (struct smb2_preauth_neg_context *)pctx, 10480512a5f8SKuan-Ting Chen ctxt_len); 104938c8a9a5SSteve French if (status != STATUS_SUCCESS) 105038c8a9a5SSteve French break; 105138c8a9a5SSteve French } else if (pctx->ContextType == SMB2_ENCRYPTION_CAPABILITIES) { 105238c8a9a5SSteve French ksmbd_debug(SMB, 105338c8a9a5SSteve French "deassemble SMB2_ENCRYPTION_CAPABILITIES context\n"); 105438c8a9a5SSteve French if (conn->cipher_type) 105538c8a9a5SSteve French break; 105638c8a9a5SSteve French 105738c8a9a5SSteve French decode_encrypt_ctxt(conn, 105838c8a9a5SSteve French (struct smb2_encryption_neg_context *)pctx, 10590512a5f8SKuan-Ting Chen ctxt_len); 106038c8a9a5SSteve French } else if (pctx->ContextType == SMB2_COMPRESSION_CAPABILITIES) { 106138c8a9a5SSteve French ksmbd_debug(SMB, 106238c8a9a5SSteve French "deassemble SMB2_COMPRESSION_CAPABILITIES context\n"); 106338c8a9a5SSteve French if (conn->compress_algorithm) 106438c8a9a5SSteve French break; 106538c8a9a5SSteve French 106638c8a9a5SSteve French decode_compress_ctxt(conn, 106738c8a9a5SSteve French (struct smb2_compression_capabilities_context *)pctx); 106838c8a9a5SSteve French } else if (pctx->ContextType == SMB2_NETNAME_NEGOTIATE_CONTEXT_ID) { 106938c8a9a5SSteve French ksmbd_debug(SMB, 107038c8a9a5SSteve French "deassemble SMB2_NETNAME_NEGOTIATE_CONTEXT_ID context\n"); 107138c8a9a5SSteve French } else if (pctx->ContextType == SMB2_POSIX_EXTENSIONS_AVAILABLE) { 107238c8a9a5SSteve French ksmbd_debug(SMB, 107338c8a9a5SSteve French "deassemble SMB2_POSIX_EXTENSIONS_AVAILABLE context\n"); 107438c8a9a5SSteve French conn->posix_ext_supported = true; 107538c8a9a5SSteve French } else if (pctx->ContextType == SMB2_SIGNING_CAPABILITIES) { 107638c8a9a5SSteve French ksmbd_debug(SMB, 107738c8a9a5SSteve French "deassemble SMB2_SIGNING_CAPABILITIES context\n"); 10780512a5f8SKuan-Ting Chen 107938c8a9a5SSteve French decode_sign_cap_ctxt(conn, 108038c8a9a5SSteve French (struct smb2_signing_capabilities *)pctx, 10810512a5f8SKuan-Ting Chen ctxt_len); 108238c8a9a5SSteve French } 108338c8a9a5SSteve French 108438c8a9a5SSteve French /* offsets must be 8 byte aligned */ 1085f1a41187SNamjae Jeon offset = (ctxt_len + 7) & ~0x7; 1086f1a41187SNamjae Jeon len_of_ctxts -= offset; 108738c8a9a5SSteve French } 108838c8a9a5SSteve French return status; 108938c8a9a5SSteve French } 109038c8a9a5SSteve French 109138c8a9a5SSteve French /** 109238c8a9a5SSteve French * smb2_handle_negotiate() - handler for smb2 negotiate command 109338c8a9a5SSteve French * @work: smb work containing smb request buffer 109438c8a9a5SSteve French * 109538c8a9a5SSteve French * Return: 0 109638c8a9a5SSteve French */ 109738c8a9a5SSteve French int smb2_handle_negotiate(struct ksmbd_work *work) 109838c8a9a5SSteve French { 109938c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 110038c8a9a5SSteve French struct smb2_negotiate_req *req = smb2_get_msg(work->request_buf); 110138c8a9a5SSteve French struct smb2_negotiate_rsp *rsp = smb2_get_msg(work->response_buf); 110238c8a9a5SSteve French int rc = 0; 1103e2b76ab8SNamjae Jeon unsigned int smb2_buf_len, smb2_neg_size, neg_ctxt_len = 0; 110438c8a9a5SSteve French __le32 status; 110538c8a9a5SSteve French 110638c8a9a5SSteve French ksmbd_debug(SMB, "Received negotiate request\n"); 110738c8a9a5SSteve French conn->need_neg = false; 110838c8a9a5SSteve French if (ksmbd_conn_good(conn)) { 110938c8a9a5SSteve French pr_err("conn->tcp_status is already in CifsGood State\n"); 111038c8a9a5SSteve French work->send_no_response = 1; 111138c8a9a5SSteve French return rc; 111238c8a9a5SSteve French } 111338c8a9a5SSteve French 1114d738950fSKuan-Ting Chen smb2_buf_len = get_rfc1002_len(work->request_buf); 1115d738950fSKuan-Ting Chen smb2_neg_size = offsetof(struct smb2_negotiate_req, Dialects); 1116d738950fSKuan-Ting Chen if (smb2_neg_size > smb2_buf_len) { 111738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 111838c8a9a5SSteve French rc = -EINVAL; 111938c8a9a5SSteve French goto err_out; 112038c8a9a5SSteve French } 112138c8a9a5SSteve French 1122d738950fSKuan-Ting Chen if (req->DialectCount == 0) { 1123d738950fSKuan-Ting Chen pr_err("malformed packet\n"); 112438c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 112538c8a9a5SSteve French rc = -EINVAL; 112638c8a9a5SSteve French goto err_out; 112738c8a9a5SSteve French } 112838c8a9a5SSteve French 112938c8a9a5SSteve French if (conn->dialect == SMB311_PROT_ID) { 113038c8a9a5SSteve French unsigned int nego_ctxt_off = le32_to_cpu(req->NegotiateContextOffset); 113138c8a9a5SSteve French 113238c8a9a5SSteve French if (smb2_buf_len < nego_ctxt_off) { 113338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 113438c8a9a5SSteve French rc = -EINVAL; 113538c8a9a5SSteve French goto err_out; 113638c8a9a5SSteve French } 113738c8a9a5SSteve French 113838c8a9a5SSteve French if (smb2_neg_size > nego_ctxt_off) { 113938c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 114038c8a9a5SSteve French rc = -EINVAL; 114138c8a9a5SSteve French goto err_out; 114238c8a9a5SSteve French } 114338c8a9a5SSteve French 114438c8a9a5SSteve French if (smb2_neg_size + le16_to_cpu(req->DialectCount) * sizeof(__le16) > 114538c8a9a5SSteve French nego_ctxt_off) { 114638c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 114738c8a9a5SSteve French rc = -EINVAL; 114838c8a9a5SSteve French goto err_out; 114938c8a9a5SSteve French } 115038c8a9a5SSteve French } else { 115138c8a9a5SSteve French if (smb2_neg_size + le16_to_cpu(req->DialectCount) * sizeof(__le16) > 115238c8a9a5SSteve French smb2_buf_len) { 115338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 115438c8a9a5SSteve French rc = -EINVAL; 115538c8a9a5SSteve French goto err_out; 115638c8a9a5SSteve French } 115738c8a9a5SSteve French } 115838c8a9a5SSteve French 115938c8a9a5SSteve French conn->cli_cap = le32_to_cpu(req->Capabilities); 116038c8a9a5SSteve French switch (conn->dialect) { 116138c8a9a5SSteve French case SMB311_PROT_ID: 116238c8a9a5SSteve French conn->preauth_info = 116338c8a9a5SSteve French kzalloc(sizeof(struct preauth_integrity_info), 116438c8a9a5SSteve French GFP_KERNEL); 116538c8a9a5SSteve French if (!conn->preauth_info) { 116638c8a9a5SSteve French rc = -ENOMEM; 116738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 116838c8a9a5SSteve French goto err_out; 116938c8a9a5SSteve French } 117038c8a9a5SSteve French 117138c8a9a5SSteve French status = deassemble_neg_contexts(conn, req, 117238c8a9a5SSteve French get_rfc1002_len(work->request_buf)); 117338c8a9a5SSteve French if (status != STATUS_SUCCESS) { 117438c8a9a5SSteve French pr_err("deassemble_neg_contexts error(0x%x)\n", 117538c8a9a5SSteve French status); 117638c8a9a5SSteve French rsp->hdr.Status = status; 117738c8a9a5SSteve French rc = -EINVAL; 117838c8a9a5SSteve French kfree(conn->preauth_info); 117938c8a9a5SSteve French conn->preauth_info = NULL; 118038c8a9a5SSteve French goto err_out; 118138c8a9a5SSteve French } 118238c8a9a5SSteve French 118338c8a9a5SSteve French rc = init_smb3_11_server(conn); 118438c8a9a5SSteve French if (rc < 0) { 118538c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 118638c8a9a5SSteve French kfree(conn->preauth_info); 118738c8a9a5SSteve French conn->preauth_info = NULL; 118838c8a9a5SSteve French goto err_out; 118938c8a9a5SSteve French } 119038c8a9a5SSteve French 119138c8a9a5SSteve French ksmbd_gen_preauth_integrity_hash(conn, 119238c8a9a5SSteve French work->request_buf, 119338c8a9a5SSteve French conn->preauth_info->Preauth_HashValue); 119438c8a9a5SSteve French rsp->NegotiateContextOffset = 119538c8a9a5SSteve French cpu_to_le32(OFFSET_OF_NEG_CONTEXT); 1196e2b76ab8SNamjae Jeon neg_ctxt_len = assemble_neg_contexts(conn, rsp); 119738c8a9a5SSteve French break; 119838c8a9a5SSteve French case SMB302_PROT_ID: 119938c8a9a5SSteve French init_smb3_02_server(conn); 120038c8a9a5SSteve French break; 120138c8a9a5SSteve French case SMB30_PROT_ID: 120238c8a9a5SSteve French init_smb3_0_server(conn); 120338c8a9a5SSteve French break; 120438c8a9a5SSteve French case SMB21_PROT_ID: 120538c8a9a5SSteve French init_smb2_1_server(conn); 120638c8a9a5SSteve French break; 120738c8a9a5SSteve French case SMB2X_PROT_ID: 120838c8a9a5SSteve French case BAD_PROT_ID: 120938c8a9a5SSteve French default: 121038c8a9a5SSteve French ksmbd_debug(SMB, "Server dialect :0x%x not supported\n", 121138c8a9a5SSteve French conn->dialect); 121238c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_SUPPORTED; 121338c8a9a5SSteve French rc = -EINVAL; 121438c8a9a5SSteve French goto err_out; 121538c8a9a5SSteve French } 121638c8a9a5SSteve French rsp->Capabilities = cpu_to_le32(conn->vals->capabilities); 121738c8a9a5SSteve French 121838c8a9a5SSteve French /* For stats */ 121938c8a9a5SSteve French conn->connection_type = conn->dialect; 122038c8a9a5SSteve French 122138c8a9a5SSteve French rsp->MaxTransactSize = cpu_to_le32(conn->vals->max_trans_size); 122238c8a9a5SSteve French rsp->MaxReadSize = cpu_to_le32(conn->vals->max_read_size); 122338c8a9a5SSteve French rsp->MaxWriteSize = cpu_to_le32(conn->vals->max_write_size); 122438c8a9a5SSteve French 122538c8a9a5SSteve French memcpy(conn->ClientGUID, req->ClientGUID, 122638c8a9a5SSteve French SMB2_CLIENT_GUID_SIZE); 122738c8a9a5SSteve French conn->cli_sec_mode = le16_to_cpu(req->SecurityMode); 122838c8a9a5SSteve French 122938c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(65); 123038c8a9a5SSteve French rsp->DialectRevision = cpu_to_le16(conn->dialect); 123138c8a9a5SSteve French /* Not setting conn guid rsp->ServerGUID, as it 123238c8a9a5SSteve French * not used by client for identifying server 123338c8a9a5SSteve French */ 123438c8a9a5SSteve French memset(rsp->ServerGUID, 0, SMB2_CLIENT_GUID_SIZE); 123538c8a9a5SSteve French 123638c8a9a5SSteve French rsp->SystemTime = cpu_to_le64(ksmbd_systime()); 123738c8a9a5SSteve French rsp->ServerStartTime = 0; 123838c8a9a5SSteve French ksmbd_debug(SMB, "negotiate context offset %d, count %d\n", 123938c8a9a5SSteve French le32_to_cpu(rsp->NegotiateContextOffset), 124038c8a9a5SSteve French le16_to_cpu(rsp->NegotiateContextCount)); 124138c8a9a5SSteve French 124238c8a9a5SSteve French rsp->SecurityBufferOffset = cpu_to_le16(128); 124338c8a9a5SSteve French rsp->SecurityBufferLength = cpu_to_le16(AUTH_GSS_LENGTH); 124438c8a9a5SSteve French ksmbd_copy_gss_neg_header((char *)(&rsp->hdr) + 124538c8a9a5SSteve French le16_to_cpu(rsp->SecurityBufferOffset)); 1246e2b76ab8SNamjae Jeon 124738c8a9a5SSteve French rsp->SecurityMode = SMB2_NEGOTIATE_SIGNING_ENABLED_LE; 124838c8a9a5SSteve French conn->use_spnego = true; 124938c8a9a5SSteve French 125038c8a9a5SSteve French if ((server_conf.signing == KSMBD_CONFIG_OPT_AUTO || 125138c8a9a5SSteve French server_conf.signing == KSMBD_CONFIG_OPT_DISABLED) && 125238c8a9a5SSteve French req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED_LE) 125338c8a9a5SSteve French conn->sign = true; 125438c8a9a5SSteve French else if (server_conf.signing == KSMBD_CONFIG_OPT_MANDATORY) { 125538c8a9a5SSteve French server_conf.enforced_signing = true; 125638c8a9a5SSteve French rsp->SecurityMode |= SMB2_NEGOTIATE_SIGNING_REQUIRED_LE; 125738c8a9a5SSteve French conn->sign = true; 125838c8a9a5SSteve French } 125938c8a9a5SSteve French 126038c8a9a5SSteve French conn->srv_sec_mode = le16_to_cpu(rsp->SecurityMode); 126138c8a9a5SSteve French ksmbd_conn_set_need_negotiate(conn); 126238c8a9a5SSteve French 126338c8a9a5SSteve French err_out: 1264e2b76ab8SNamjae Jeon if (rc) 1265e2b76ab8SNamjae Jeon rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 1266e2b76ab8SNamjae Jeon 1267e2b76ab8SNamjae Jeon if (!rc) 1268e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, rsp, 1269e2b76ab8SNamjae Jeon sizeof(struct smb2_negotiate_rsp) + 1270e2b76ab8SNamjae Jeon AUTH_GSS_LENGTH + neg_ctxt_len); 127138c8a9a5SSteve French if (rc < 0) 127238c8a9a5SSteve French smb2_set_err_rsp(work); 127338c8a9a5SSteve French return rc; 127438c8a9a5SSteve French } 127538c8a9a5SSteve French 127638c8a9a5SSteve French static int alloc_preauth_hash(struct ksmbd_session *sess, 127738c8a9a5SSteve French struct ksmbd_conn *conn) 127838c8a9a5SSteve French { 127938c8a9a5SSteve French if (sess->Preauth_HashValue) 128038c8a9a5SSteve French return 0; 128138c8a9a5SSteve French 128238c8a9a5SSteve French sess->Preauth_HashValue = kmemdup(conn->preauth_info->Preauth_HashValue, 128338c8a9a5SSteve French PREAUTH_HASHVALUE_SIZE, GFP_KERNEL); 128438c8a9a5SSteve French if (!sess->Preauth_HashValue) 128538c8a9a5SSteve French return -ENOMEM; 128638c8a9a5SSteve French 128738c8a9a5SSteve French return 0; 128838c8a9a5SSteve French } 128938c8a9a5SSteve French 129038c8a9a5SSteve French static int generate_preauth_hash(struct ksmbd_work *work) 129138c8a9a5SSteve French { 129238c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 129338c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 129438c8a9a5SSteve French u8 *preauth_hash; 129538c8a9a5SSteve French 129638c8a9a5SSteve French if (conn->dialect != SMB311_PROT_ID) 129738c8a9a5SSteve French return 0; 129838c8a9a5SSteve French 129938c8a9a5SSteve French if (conn->binding) { 130038c8a9a5SSteve French struct preauth_session *preauth_sess; 130138c8a9a5SSteve French 130238c8a9a5SSteve French preauth_sess = ksmbd_preauth_session_lookup(conn, sess->id); 130338c8a9a5SSteve French if (!preauth_sess) { 130438c8a9a5SSteve French preauth_sess = ksmbd_preauth_session_alloc(conn, sess->id); 130538c8a9a5SSteve French if (!preauth_sess) 130638c8a9a5SSteve French return -ENOMEM; 130738c8a9a5SSteve French } 130838c8a9a5SSteve French 130938c8a9a5SSteve French preauth_hash = preauth_sess->Preauth_HashValue; 131038c8a9a5SSteve French } else { 131138c8a9a5SSteve French if (!sess->Preauth_HashValue) 131238c8a9a5SSteve French if (alloc_preauth_hash(sess, conn)) 131338c8a9a5SSteve French return -ENOMEM; 131438c8a9a5SSteve French preauth_hash = sess->Preauth_HashValue; 131538c8a9a5SSteve French } 131638c8a9a5SSteve French 131738c8a9a5SSteve French ksmbd_gen_preauth_integrity_hash(conn, work->request_buf, preauth_hash); 131838c8a9a5SSteve French return 0; 131938c8a9a5SSteve French } 132038c8a9a5SSteve French 132138c8a9a5SSteve French static int decode_negotiation_token(struct ksmbd_conn *conn, 132238c8a9a5SSteve French struct negotiate_message *negblob, 132338c8a9a5SSteve French size_t sz) 132438c8a9a5SSteve French { 132538c8a9a5SSteve French if (!conn->use_spnego) 132638c8a9a5SSteve French return -EINVAL; 132738c8a9a5SSteve French 132838c8a9a5SSteve French if (ksmbd_decode_negTokenInit((char *)negblob, sz, conn)) { 132938c8a9a5SSteve French if (ksmbd_decode_negTokenTarg((char *)negblob, sz, conn)) { 133038c8a9a5SSteve French conn->auth_mechs |= KSMBD_AUTH_NTLMSSP; 133138c8a9a5SSteve French conn->preferred_auth_mech = KSMBD_AUTH_NTLMSSP; 133238c8a9a5SSteve French conn->use_spnego = false; 133338c8a9a5SSteve French } 133438c8a9a5SSteve French } 133538c8a9a5SSteve French return 0; 133638c8a9a5SSteve French } 133738c8a9a5SSteve French 133838c8a9a5SSteve French static int ntlm_negotiate(struct ksmbd_work *work, 133938c8a9a5SSteve French struct negotiate_message *negblob, 134098422bddSNamjae Jeon size_t negblob_len, struct smb2_sess_setup_rsp *rsp) 134138c8a9a5SSteve French { 134238c8a9a5SSteve French struct challenge_message *chgblob; 134338c8a9a5SSteve French unsigned char *spnego_blob = NULL; 134438c8a9a5SSteve French u16 spnego_blob_len; 134538c8a9a5SSteve French char *neg_blob; 134638c8a9a5SSteve French int sz, rc; 134738c8a9a5SSteve French 134838c8a9a5SSteve French ksmbd_debug(SMB, "negotiate phase\n"); 134938c8a9a5SSteve French rc = ksmbd_decode_ntlmssp_neg_blob(negblob, negblob_len, work->conn); 135038c8a9a5SSteve French if (rc) 135138c8a9a5SSteve French return rc; 135238c8a9a5SSteve French 135338c8a9a5SSteve French sz = le16_to_cpu(rsp->SecurityBufferOffset); 135438c8a9a5SSteve French chgblob = 135538c8a9a5SSteve French (struct challenge_message *)((char *)&rsp->hdr.ProtocolId + sz); 135638c8a9a5SSteve French memset(chgblob, 0, sizeof(struct challenge_message)); 135738c8a9a5SSteve French 135838c8a9a5SSteve French if (!work->conn->use_spnego) { 135938c8a9a5SSteve French sz = ksmbd_build_ntlmssp_challenge_blob(chgblob, work->conn); 136038c8a9a5SSteve French if (sz < 0) 136138c8a9a5SSteve French return -ENOMEM; 136238c8a9a5SSteve French 136338c8a9a5SSteve French rsp->SecurityBufferLength = cpu_to_le16(sz); 136438c8a9a5SSteve French return 0; 136538c8a9a5SSteve French } 136638c8a9a5SSteve French 136738c8a9a5SSteve French sz = sizeof(struct challenge_message); 136838c8a9a5SSteve French sz += (strlen(ksmbd_netbios_name()) * 2 + 1 + 4) * 6; 136938c8a9a5SSteve French 137038c8a9a5SSteve French neg_blob = kzalloc(sz, GFP_KERNEL); 137138c8a9a5SSteve French if (!neg_blob) 137238c8a9a5SSteve French return -ENOMEM; 137338c8a9a5SSteve French 137438c8a9a5SSteve French chgblob = (struct challenge_message *)neg_blob; 137538c8a9a5SSteve French sz = ksmbd_build_ntlmssp_challenge_blob(chgblob, work->conn); 137638c8a9a5SSteve French if (sz < 0) { 137738c8a9a5SSteve French rc = -ENOMEM; 137838c8a9a5SSteve French goto out; 137938c8a9a5SSteve French } 138038c8a9a5SSteve French 138138c8a9a5SSteve French rc = build_spnego_ntlmssp_neg_blob(&spnego_blob, &spnego_blob_len, 138238c8a9a5SSteve French neg_blob, sz); 138338c8a9a5SSteve French if (rc) { 138438c8a9a5SSteve French rc = -ENOMEM; 138538c8a9a5SSteve French goto out; 138638c8a9a5SSteve French } 138738c8a9a5SSteve French 138838c8a9a5SSteve French sz = le16_to_cpu(rsp->SecurityBufferOffset); 138938c8a9a5SSteve French memcpy((char *)&rsp->hdr.ProtocolId + sz, spnego_blob, spnego_blob_len); 139038c8a9a5SSteve French rsp->SecurityBufferLength = cpu_to_le16(spnego_blob_len); 139138c8a9a5SSteve French 139238c8a9a5SSteve French out: 139338c8a9a5SSteve French kfree(spnego_blob); 139438c8a9a5SSteve French kfree(neg_blob); 139538c8a9a5SSteve French return rc; 139638c8a9a5SSteve French } 139738c8a9a5SSteve French 139838c8a9a5SSteve French static struct authenticate_message *user_authblob(struct ksmbd_conn *conn, 139938c8a9a5SSteve French struct smb2_sess_setup_req *req) 140038c8a9a5SSteve French { 140138c8a9a5SSteve French int sz; 140238c8a9a5SSteve French 140338c8a9a5SSteve French if (conn->use_spnego && conn->mechToken) 140438c8a9a5SSteve French return (struct authenticate_message *)conn->mechToken; 140538c8a9a5SSteve French 140638c8a9a5SSteve French sz = le16_to_cpu(req->SecurityBufferOffset); 140738c8a9a5SSteve French return (struct authenticate_message *)((char *)&req->hdr.ProtocolId 140838c8a9a5SSteve French + sz); 140938c8a9a5SSteve French } 141038c8a9a5SSteve French 141138c8a9a5SSteve French static struct ksmbd_user *session_user(struct ksmbd_conn *conn, 141238c8a9a5SSteve French struct smb2_sess_setup_req *req) 141338c8a9a5SSteve French { 141438c8a9a5SSteve French struct authenticate_message *authblob; 141538c8a9a5SSteve French struct ksmbd_user *user; 141638c8a9a5SSteve French char *name; 141738c8a9a5SSteve French unsigned int name_off, name_len, secbuf_len; 141838c8a9a5SSteve French 141938c8a9a5SSteve French secbuf_len = le16_to_cpu(req->SecurityBufferLength); 142038c8a9a5SSteve French if (secbuf_len < sizeof(struct authenticate_message)) { 142138c8a9a5SSteve French ksmbd_debug(SMB, "blob len %d too small\n", secbuf_len); 142238c8a9a5SSteve French return NULL; 142338c8a9a5SSteve French } 142438c8a9a5SSteve French authblob = user_authblob(conn, req); 142538c8a9a5SSteve French name_off = le32_to_cpu(authblob->UserName.BufferOffset); 142638c8a9a5SSteve French name_len = le16_to_cpu(authblob->UserName.Length); 142738c8a9a5SSteve French 142838c8a9a5SSteve French if (secbuf_len < (u64)name_off + name_len) 142938c8a9a5SSteve French return NULL; 143038c8a9a5SSteve French 143138c8a9a5SSteve French name = smb_strndup_from_utf16((const char *)authblob + name_off, 143238c8a9a5SSteve French name_len, 143338c8a9a5SSteve French true, 143438c8a9a5SSteve French conn->local_nls); 143538c8a9a5SSteve French if (IS_ERR(name)) { 143638c8a9a5SSteve French pr_err("cannot allocate memory\n"); 143738c8a9a5SSteve French return NULL; 143838c8a9a5SSteve French } 143938c8a9a5SSteve French 144038c8a9a5SSteve French ksmbd_debug(SMB, "session setup request for user %s\n", name); 144138c8a9a5SSteve French user = ksmbd_login_user(name); 144238c8a9a5SSteve French kfree(name); 144338c8a9a5SSteve French return user; 144438c8a9a5SSteve French } 144538c8a9a5SSteve French 144698422bddSNamjae Jeon static int ntlm_authenticate(struct ksmbd_work *work, 144798422bddSNamjae Jeon struct smb2_sess_setup_req *req, 144898422bddSNamjae Jeon struct smb2_sess_setup_rsp *rsp) 144938c8a9a5SSteve French { 145038c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 145138c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 145238c8a9a5SSteve French struct channel *chann = NULL; 145338c8a9a5SSteve French struct ksmbd_user *user; 145438c8a9a5SSteve French u64 prev_id; 145538c8a9a5SSteve French int sz, rc; 145638c8a9a5SSteve French 145738c8a9a5SSteve French ksmbd_debug(SMB, "authenticate phase\n"); 145838c8a9a5SSteve French if (conn->use_spnego) { 145938c8a9a5SSteve French unsigned char *spnego_blob; 146038c8a9a5SSteve French u16 spnego_blob_len; 146138c8a9a5SSteve French 146238c8a9a5SSteve French rc = build_spnego_ntlmssp_auth_blob(&spnego_blob, 146338c8a9a5SSteve French &spnego_blob_len, 146438c8a9a5SSteve French 0); 146538c8a9a5SSteve French if (rc) 146638c8a9a5SSteve French return -ENOMEM; 146738c8a9a5SSteve French 146838c8a9a5SSteve French sz = le16_to_cpu(rsp->SecurityBufferOffset); 146938c8a9a5SSteve French memcpy((char *)&rsp->hdr.ProtocolId + sz, spnego_blob, spnego_blob_len); 147038c8a9a5SSteve French rsp->SecurityBufferLength = cpu_to_le16(spnego_blob_len); 147138c8a9a5SSteve French kfree(spnego_blob); 147238c8a9a5SSteve French } 147338c8a9a5SSteve French 147438c8a9a5SSteve French user = session_user(conn, req); 147538c8a9a5SSteve French if (!user) { 147638c8a9a5SSteve French ksmbd_debug(SMB, "Unknown user name or an error\n"); 147738c8a9a5SSteve French return -EPERM; 147838c8a9a5SSteve French } 147938c8a9a5SSteve French 148038c8a9a5SSteve French /* Check for previous session */ 148138c8a9a5SSteve French prev_id = le64_to_cpu(req->PreviousSessionId); 148238c8a9a5SSteve French if (prev_id && prev_id != sess->id) 148338c8a9a5SSteve French destroy_previous_session(conn, user, prev_id); 148438c8a9a5SSteve French 148538c8a9a5SSteve French if (sess->state == SMB2_SESSION_VALID) { 148638c8a9a5SSteve French /* 148738c8a9a5SSteve French * Reuse session if anonymous try to connect 148838c8a9a5SSteve French * on reauthetication. 148938c8a9a5SSteve French */ 149038c8a9a5SSteve French if (conn->binding == false && ksmbd_anonymous_user(user)) { 149138c8a9a5SSteve French ksmbd_free_user(user); 149238c8a9a5SSteve French return 0; 149338c8a9a5SSteve French } 149438c8a9a5SSteve French 149538c8a9a5SSteve French if (!ksmbd_compare_user(sess->user, user)) { 149638c8a9a5SSteve French ksmbd_free_user(user); 149738c8a9a5SSteve French return -EPERM; 149838c8a9a5SSteve French } 149938c8a9a5SSteve French ksmbd_free_user(user); 150038c8a9a5SSteve French } else { 150138c8a9a5SSteve French sess->user = user; 150238c8a9a5SSteve French } 150338c8a9a5SSteve French 150438c8a9a5SSteve French if (conn->binding == false && user_guest(sess->user)) { 150538c8a9a5SSteve French rsp->SessionFlags = SMB2_SESSION_FLAG_IS_GUEST_LE; 150638c8a9a5SSteve French } else { 150738c8a9a5SSteve French struct authenticate_message *authblob; 150838c8a9a5SSteve French 150938c8a9a5SSteve French authblob = user_authblob(conn, req); 151038c8a9a5SSteve French sz = le16_to_cpu(req->SecurityBufferLength); 151138c8a9a5SSteve French rc = ksmbd_decode_ntlmssp_auth_blob(authblob, sz, conn, sess); 151238c8a9a5SSteve French if (rc) { 151338c8a9a5SSteve French set_user_flag(sess->user, KSMBD_USER_FLAG_BAD_PASSWORD); 151438c8a9a5SSteve French ksmbd_debug(SMB, "authentication failed\n"); 151538c8a9a5SSteve French return -EPERM; 151638c8a9a5SSteve French } 151738c8a9a5SSteve French } 151838c8a9a5SSteve French 151938c8a9a5SSteve French /* 152038c8a9a5SSteve French * If session state is SMB2_SESSION_VALID, We can assume 152138c8a9a5SSteve French * that it is reauthentication. And the user/password 152238c8a9a5SSteve French * has been verified, so return it here. 152338c8a9a5SSteve French */ 152438c8a9a5SSteve French if (sess->state == SMB2_SESSION_VALID) { 152538c8a9a5SSteve French if (conn->binding) 152638c8a9a5SSteve French goto binding_session; 152738c8a9a5SSteve French return 0; 152838c8a9a5SSteve French } 152938c8a9a5SSteve French 153038c8a9a5SSteve French if ((rsp->SessionFlags != SMB2_SESSION_FLAG_IS_GUEST_LE && 153138c8a9a5SSteve French (conn->sign || server_conf.enforced_signing)) || 153238c8a9a5SSteve French (req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED)) 153338c8a9a5SSteve French sess->sign = true; 153438c8a9a5SSteve French 153538c8a9a5SSteve French if (smb3_encryption_negotiated(conn) && 153638c8a9a5SSteve French !(req->Flags & SMB2_SESSION_REQ_FLAG_BINDING)) { 153738c8a9a5SSteve French rc = conn->ops->generate_encryptionkey(conn, sess); 153838c8a9a5SSteve French if (rc) { 153938c8a9a5SSteve French ksmbd_debug(SMB, 154038c8a9a5SSteve French "SMB3 encryption key generation failed\n"); 154138c8a9a5SSteve French return -EINVAL; 154238c8a9a5SSteve French } 154338c8a9a5SSteve French sess->enc = true; 154438c8a9a5SSteve French if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION) 154538c8a9a5SSteve French rsp->SessionFlags = SMB2_SESSION_FLAG_ENCRYPT_DATA_LE; 154638c8a9a5SSteve French /* 154738c8a9a5SSteve French * signing is disable if encryption is enable 154838c8a9a5SSteve French * on this session 154938c8a9a5SSteve French */ 155038c8a9a5SSteve French sess->sign = false; 155138c8a9a5SSteve French } 155238c8a9a5SSteve French 155338c8a9a5SSteve French binding_session: 155438c8a9a5SSteve French if (conn->dialect >= SMB30_PROT_ID) { 155538c8a9a5SSteve French chann = lookup_chann_list(sess, conn); 155638c8a9a5SSteve French if (!chann) { 155738c8a9a5SSteve French chann = kmalloc(sizeof(struct channel), GFP_KERNEL); 155838c8a9a5SSteve French if (!chann) 155938c8a9a5SSteve French return -ENOMEM; 156038c8a9a5SSteve French 156138c8a9a5SSteve French chann->conn = conn; 156238c8a9a5SSteve French xa_store(&sess->ksmbd_chann_list, (long)conn, chann, GFP_KERNEL); 156338c8a9a5SSteve French } 156438c8a9a5SSteve French } 156538c8a9a5SSteve French 156638c8a9a5SSteve French if (conn->ops->generate_signingkey) { 156738c8a9a5SSteve French rc = conn->ops->generate_signingkey(sess, conn); 156838c8a9a5SSteve French if (rc) { 156938c8a9a5SSteve French ksmbd_debug(SMB, "SMB3 signing key generation failed\n"); 157038c8a9a5SSteve French return -EINVAL; 157138c8a9a5SSteve French } 157238c8a9a5SSteve French } 157338c8a9a5SSteve French 157438c8a9a5SSteve French if (!ksmbd_conn_lookup_dialect(conn)) { 157538c8a9a5SSteve French pr_err("fail to verify the dialect\n"); 157638c8a9a5SSteve French return -ENOENT; 157738c8a9a5SSteve French } 157838c8a9a5SSteve French return 0; 157938c8a9a5SSteve French } 158038c8a9a5SSteve French 158138c8a9a5SSteve French #ifdef CONFIG_SMB_SERVER_KERBEROS5 158298422bddSNamjae Jeon static int krb5_authenticate(struct ksmbd_work *work, 158398422bddSNamjae Jeon struct smb2_sess_setup_req *req, 158498422bddSNamjae Jeon struct smb2_sess_setup_rsp *rsp) 158538c8a9a5SSteve French { 158638c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 158738c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 158838c8a9a5SSteve French char *in_blob, *out_blob; 158938c8a9a5SSteve French struct channel *chann = NULL; 159038c8a9a5SSteve French u64 prev_sess_id; 159138c8a9a5SSteve French int in_len, out_len; 159238c8a9a5SSteve French int retval; 159338c8a9a5SSteve French 159438c8a9a5SSteve French in_blob = (char *)&req->hdr.ProtocolId + 159538c8a9a5SSteve French le16_to_cpu(req->SecurityBufferOffset); 159638c8a9a5SSteve French in_len = le16_to_cpu(req->SecurityBufferLength); 159738c8a9a5SSteve French out_blob = (char *)&rsp->hdr.ProtocolId + 159838c8a9a5SSteve French le16_to_cpu(rsp->SecurityBufferOffset); 159938c8a9a5SSteve French out_len = work->response_sz - 160038c8a9a5SSteve French (le16_to_cpu(rsp->SecurityBufferOffset) + 4); 160138c8a9a5SSteve French 160238c8a9a5SSteve French /* Check previous session */ 160338c8a9a5SSteve French prev_sess_id = le64_to_cpu(req->PreviousSessionId); 160438c8a9a5SSteve French if (prev_sess_id && prev_sess_id != sess->id) 160538c8a9a5SSteve French destroy_previous_session(conn, sess->user, prev_sess_id); 160638c8a9a5SSteve French 160738c8a9a5SSteve French if (sess->state == SMB2_SESSION_VALID) 160838c8a9a5SSteve French ksmbd_free_user(sess->user); 160938c8a9a5SSteve French 161038c8a9a5SSteve French retval = ksmbd_krb5_authenticate(sess, in_blob, in_len, 161138c8a9a5SSteve French out_blob, &out_len); 161238c8a9a5SSteve French if (retval) { 161338c8a9a5SSteve French ksmbd_debug(SMB, "krb5 authentication failed\n"); 161438c8a9a5SSteve French return -EINVAL; 161538c8a9a5SSteve French } 161638c8a9a5SSteve French rsp->SecurityBufferLength = cpu_to_le16(out_len); 161738c8a9a5SSteve French 161838c8a9a5SSteve French if ((conn->sign || server_conf.enforced_signing) || 161938c8a9a5SSteve French (req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED)) 162038c8a9a5SSteve French sess->sign = true; 162138c8a9a5SSteve French 162238c8a9a5SSteve French if (smb3_encryption_negotiated(conn)) { 162338c8a9a5SSteve French retval = conn->ops->generate_encryptionkey(conn, sess); 162438c8a9a5SSteve French if (retval) { 162538c8a9a5SSteve French ksmbd_debug(SMB, 162638c8a9a5SSteve French "SMB3 encryption key generation failed\n"); 162738c8a9a5SSteve French return -EINVAL; 162838c8a9a5SSteve French } 162938c8a9a5SSteve French sess->enc = true; 163038c8a9a5SSteve French if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION) 163138c8a9a5SSteve French rsp->SessionFlags = SMB2_SESSION_FLAG_ENCRYPT_DATA_LE; 163238c8a9a5SSteve French sess->sign = false; 163338c8a9a5SSteve French } 163438c8a9a5SSteve French 163538c8a9a5SSteve French if (conn->dialect >= SMB30_PROT_ID) { 163638c8a9a5SSteve French chann = lookup_chann_list(sess, conn); 163738c8a9a5SSteve French if (!chann) { 163838c8a9a5SSteve French chann = kmalloc(sizeof(struct channel), GFP_KERNEL); 163938c8a9a5SSteve French if (!chann) 164038c8a9a5SSteve French return -ENOMEM; 164138c8a9a5SSteve French 164238c8a9a5SSteve French chann->conn = conn; 164338c8a9a5SSteve French xa_store(&sess->ksmbd_chann_list, (long)conn, chann, GFP_KERNEL); 164438c8a9a5SSteve French } 164538c8a9a5SSteve French } 164638c8a9a5SSteve French 164738c8a9a5SSteve French if (conn->ops->generate_signingkey) { 164838c8a9a5SSteve French retval = conn->ops->generate_signingkey(sess, conn); 164938c8a9a5SSteve French if (retval) { 165038c8a9a5SSteve French ksmbd_debug(SMB, "SMB3 signing key generation failed\n"); 165138c8a9a5SSteve French return -EINVAL; 165238c8a9a5SSteve French } 165338c8a9a5SSteve French } 165438c8a9a5SSteve French 165538c8a9a5SSteve French if (!ksmbd_conn_lookup_dialect(conn)) { 165638c8a9a5SSteve French pr_err("fail to verify the dialect\n"); 165738c8a9a5SSteve French return -ENOENT; 165838c8a9a5SSteve French } 165938c8a9a5SSteve French return 0; 166038c8a9a5SSteve French } 166138c8a9a5SSteve French #else 166298422bddSNamjae Jeon static int krb5_authenticate(struct ksmbd_work *work, 166398422bddSNamjae Jeon struct smb2_sess_setup_req *req, 166498422bddSNamjae Jeon struct smb2_sess_setup_rsp *rsp) 166538c8a9a5SSteve French { 166638c8a9a5SSteve French return -EOPNOTSUPP; 166738c8a9a5SSteve French } 166838c8a9a5SSteve French #endif 166938c8a9a5SSteve French 167038c8a9a5SSteve French int smb2_sess_setup(struct ksmbd_work *work) 167138c8a9a5SSteve French { 167238c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 167398422bddSNamjae Jeon struct smb2_sess_setup_req *req; 167498422bddSNamjae Jeon struct smb2_sess_setup_rsp *rsp; 167538c8a9a5SSteve French struct ksmbd_session *sess; 167638c8a9a5SSteve French struct negotiate_message *negblob; 167738c8a9a5SSteve French unsigned int negblob_len, negblob_off; 167838c8a9a5SSteve French int rc = 0; 167938c8a9a5SSteve French 168038c8a9a5SSteve French ksmbd_debug(SMB, "Received request for session setup\n"); 168138c8a9a5SSteve French 168298422bddSNamjae Jeon WORK_BUFFERS(work, req, rsp); 168398422bddSNamjae Jeon 168438c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(9); 168538c8a9a5SSteve French rsp->SessionFlags = 0; 168638c8a9a5SSteve French rsp->SecurityBufferOffset = cpu_to_le16(72); 168738c8a9a5SSteve French rsp->SecurityBufferLength = 0; 168838c8a9a5SSteve French 168938c8a9a5SSteve French ksmbd_conn_lock(conn); 169038c8a9a5SSteve French if (!req->hdr.SessionId) { 169138c8a9a5SSteve French sess = ksmbd_smb2_session_create(); 169238c8a9a5SSteve French if (!sess) { 169338c8a9a5SSteve French rc = -ENOMEM; 169438c8a9a5SSteve French goto out_err; 169538c8a9a5SSteve French } 169638c8a9a5SSteve French rsp->hdr.SessionId = cpu_to_le64(sess->id); 169738c8a9a5SSteve French rc = ksmbd_session_register(conn, sess); 169838c8a9a5SSteve French if (rc) 169938c8a9a5SSteve French goto out_err; 170038c8a9a5SSteve French } else if (conn->dialect >= SMB30_PROT_ID && 170138c8a9a5SSteve French (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL) && 170238c8a9a5SSteve French req->Flags & SMB2_SESSION_REQ_FLAG_BINDING) { 170338c8a9a5SSteve French u64 sess_id = le64_to_cpu(req->hdr.SessionId); 170438c8a9a5SSteve French 170538c8a9a5SSteve French sess = ksmbd_session_lookup_slowpath(sess_id); 170638c8a9a5SSteve French if (!sess) { 170738c8a9a5SSteve French rc = -ENOENT; 170838c8a9a5SSteve French goto out_err; 170938c8a9a5SSteve French } 171038c8a9a5SSteve French 171138c8a9a5SSteve French if (conn->dialect != sess->dialect) { 171238c8a9a5SSteve French rc = -EINVAL; 171338c8a9a5SSteve French goto out_err; 171438c8a9a5SSteve French } 171538c8a9a5SSteve French 171638c8a9a5SSteve French if (!(req->hdr.Flags & SMB2_FLAGS_SIGNED)) { 171738c8a9a5SSteve French rc = -EINVAL; 171838c8a9a5SSteve French goto out_err; 171938c8a9a5SSteve French } 172038c8a9a5SSteve French 172138c8a9a5SSteve French if (strncmp(conn->ClientGUID, sess->ClientGUID, 172238c8a9a5SSteve French SMB2_CLIENT_GUID_SIZE)) { 172338c8a9a5SSteve French rc = -ENOENT; 172438c8a9a5SSteve French goto out_err; 172538c8a9a5SSteve French } 172638c8a9a5SSteve French 172738c8a9a5SSteve French if (sess->state == SMB2_SESSION_IN_PROGRESS) { 172838c8a9a5SSteve French rc = -EACCES; 172938c8a9a5SSteve French goto out_err; 173038c8a9a5SSteve French } 173138c8a9a5SSteve French 173238c8a9a5SSteve French if (sess->state == SMB2_SESSION_EXPIRED) { 173338c8a9a5SSteve French rc = -EFAULT; 173438c8a9a5SSteve French goto out_err; 173538c8a9a5SSteve French } 173638c8a9a5SSteve French 173738c8a9a5SSteve French if (ksmbd_conn_need_reconnect(conn)) { 173838c8a9a5SSteve French rc = -EFAULT; 173938c8a9a5SSteve French sess = NULL; 174038c8a9a5SSteve French goto out_err; 174138c8a9a5SSteve French } 174238c8a9a5SSteve French 174338c8a9a5SSteve French if (ksmbd_session_lookup(conn, sess_id)) { 174438c8a9a5SSteve French rc = -EACCES; 174538c8a9a5SSteve French goto out_err; 174638c8a9a5SSteve French } 174738c8a9a5SSteve French 174838c8a9a5SSteve French if (user_guest(sess->user)) { 174938c8a9a5SSteve French rc = -EOPNOTSUPP; 175038c8a9a5SSteve French goto out_err; 175138c8a9a5SSteve French } 175238c8a9a5SSteve French 175338c8a9a5SSteve French conn->binding = true; 175438c8a9a5SSteve French } else if ((conn->dialect < SMB30_PROT_ID || 175538c8a9a5SSteve French server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL) && 175638c8a9a5SSteve French (req->Flags & SMB2_SESSION_REQ_FLAG_BINDING)) { 175738c8a9a5SSteve French sess = NULL; 175838c8a9a5SSteve French rc = -EACCES; 175938c8a9a5SSteve French goto out_err; 176038c8a9a5SSteve French } else { 176138c8a9a5SSteve French sess = ksmbd_session_lookup(conn, 176238c8a9a5SSteve French le64_to_cpu(req->hdr.SessionId)); 176338c8a9a5SSteve French if (!sess) { 176438c8a9a5SSteve French rc = -ENOENT; 176538c8a9a5SSteve French goto out_err; 176638c8a9a5SSteve French } 176738c8a9a5SSteve French 176838c8a9a5SSteve French if (sess->state == SMB2_SESSION_EXPIRED) { 176938c8a9a5SSteve French rc = -EFAULT; 177038c8a9a5SSteve French goto out_err; 177138c8a9a5SSteve French } 177238c8a9a5SSteve French 177338c8a9a5SSteve French if (ksmbd_conn_need_reconnect(conn)) { 177438c8a9a5SSteve French rc = -EFAULT; 177538c8a9a5SSteve French sess = NULL; 177638c8a9a5SSteve French goto out_err; 177738c8a9a5SSteve French } 177838c8a9a5SSteve French } 177938c8a9a5SSteve French work->sess = sess; 178038c8a9a5SSteve French 178138c8a9a5SSteve French negblob_off = le16_to_cpu(req->SecurityBufferOffset); 178238c8a9a5SSteve French negblob_len = le16_to_cpu(req->SecurityBufferLength); 178338c8a9a5SSteve French if (negblob_off < offsetof(struct smb2_sess_setup_req, Buffer) || 178438c8a9a5SSteve French negblob_len < offsetof(struct negotiate_message, NegotiateFlags)) { 178538c8a9a5SSteve French rc = -EINVAL; 178638c8a9a5SSteve French goto out_err; 178738c8a9a5SSteve French } 178838c8a9a5SSteve French 178938c8a9a5SSteve French negblob = (struct negotiate_message *)((char *)&req->hdr.ProtocolId + 179038c8a9a5SSteve French negblob_off); 179138c8a9a5SSteve French 179238c8a9a5SSteve French if (decode_negotiation_token(conn, negblob, negblob_len) == 0) { 179338c8a9a5SSteve French if (conn->mechToken) 179438c8a9a5SSteve French negblob = (struct negotiate_message *)conn->mechToken; 179538c8a9a5SSteve French } 179638c8a9a5SSteve French 179738c8a9a5SSteve French if (server_conf.auth_mechs & conn->auth_mechs) { 179838c8a9a5SSteve French rc = generate_preauth_hash(work); 179938c8a9a5SSteve French if (rc) 180038c8a9a5SSteve French goto out_err; 180138c8a9a5SSteve French 180238c8a9a5SSteve French if (conn->preferred_auth_mech & 180338c8a9a5SSteve French (KSMBD_AUTH_KRB5 | KSMBD_AUTH_MSKRB5)) { 180498422bddSNamjae Jeon rc = krb5_authenticate(work, req, rsp); 180538c8a9a5SSteve French if (rc) { 180638c8a9a5SSteve French rc = -EINVAL; 180738c8a9a5SSteve French goto out_err; 180838c8a9a5SSteve French } 180938c8a9a5SSteve French 181038c8a9a5SSteve French if (!ksmbd_conn_need_reconnect(conn)) { 181138c8a9a5SSteve French ksmbd_conn_set_good(conn); 181238c8a9a5SSteve French sess->state = SMB2_SESSION_VALID; 181338c8a9a5SSteve French } 181438c8a9a5SSteve French kfree(sess->Preauth_HashValue); 181538c8a9a5SSteve French sess->Preauth_HashValue = NULL; 181638c8a9a5SSteve French } else if (conn->preferred_auth_mech == KSMBD_AUTH_NTLMSSP) { 181738c8a9a5SSteve French if (negblob->MessageType == NtLmNegotiate) { 181898422bddSNamjae Jeon rc = ntlm_negotiate(work, negblob, negblob_len, rsp); 181938c8a9a5SSteve French if (rc) 182038c8a9a5SSteve French goto out_err; 182138c8a9a5SSteve French rsp->hdr.Status = 182238c8a9a5SSteve French STATUS_MORE_PROCESSING_REQUIRED; 182338c8a9a5SSteve French } else if (negblob->MessageType == NtLmAuthenticate) { 182498422bddSNamjae Jeon rc = ntlm_authenticate(work, req, rsp); 182538c8a9a5SSteve French if (rc) 182638c8a9a5SSteve French goto out_err; 182738c8a9a5SSteve French 182838c8a9a5SSteve French if (!ksmbd_conn_need_reconnect(conn)) { 182938c8a9a5SSteve French ksmbd_conn_set_good(conn); 183038c8a9a5SSteve French sess->state = SMB2_SESSION_VALID; 183138c8a9a5SSteve French } 183238c8a9a5SSteve French if (conn->binding) { 183338c8a9a5SSteve French struct preauth_session *preauth_sess; 183438c8a9a5SSteve French 183538c8a9a5SSteve French preauth_sess = 183638c8a9a5SSteve French ksmbd_preauth_session_lookup(conn, sess->id); 183738c8a9a5SSteve French if (preauth_sess) { 183838c8a9a5SSteve French list_del(&preauth_sess->preauth_entry); 183938c8a9a5SSteve French kfree(preauth_sess); 184038c8a9a5SSteve French } 184138c8a9a5SSteve French } 184238c8a9a5SSteve French kfree(sess->Preauth_HashValue); 184338c8a9a5SSteve French sess->Preauth_HashValue = NULL; 184438c8a9a5SSteve French } else { 184538c8a9a5SSteve French pr_info_ratelimited("Unknown NTLMSSP message type : 0x%x\n", 184638c8a9a5SSteve French le32_to_cpu(negblob->MessageType)); 184738c8a9a5SSteve French rc = -EINVAL; 184838c8a9a5SSteve French } 184938c8a9a5SSteve French } else { 185038c8a9a5SSteve French /* TODO: need one more negotiation */ 185138c8a9a5SSteve French pr_err("Not support the preferred authentication\n"); 185238c8a9a5SSteve French rc = -EINVAL; 185338c8a9a5SSteve French } 185438c8a9a5SSteve French } else { 185538c8a9a5SSteve French pr_err("Not support authentication\n"); 185638c8a9a5SSteve French rc = -EINVAL; 185738c8a9a5SSteve French } 185838c8a9a5SSteve French 185938c8a9a5SSteve French out_err: 186038c8a9a5SSteve French if (rc == -EINVAL) 186138c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 186238c8a9a5SSteve French else if (rc == -ENOENT) 186338c8a9a5SSteve French rsp->hdr.Status = STATUS_USER_SESSION_DELETED; 186438c8a9a5SSteve French else if (rc == -EACCES) 186538c8a9a5SSteve French rsp->hdr.Status = STATUS_REQUEST_NOT_ACCEPTED; 186638c8a9a5SSteve French else if (rc == -EFAULT) 186738c8a9a5SSteve French rsp->hdr.Status = STATUS_NETWORK_SESSION_EXPIRED; 186838c8a9a5SSteve French else if (rc == -ENOMEM) 186938c8a9a5SSteve French rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 187038c8a9a5SSteve French else if (rc == -EOPNOTSUPP) 187138c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_SUPPORTED; 187238c8a9a5SSteve French else if (rc) 187338c8a9a5SSteve French rsp->hdr.Status = STATUS_LOGON_FAILURE; 187438c8a9a5SSteve French 187538c8a9a5SSteve French if (conn->use_spnego && conn->mechToken) { 187638c8a9a5SSteve French kfree(conn->mechToken); 187738c8a9a5SSteve French conn->mechToken = NULL; 187838c8a9a5SSteve French } 187938c8a9a5SSteve French 188038c8a9a5SSteve French if (rc < 0) { 188138c8a9a5SSteve French /* 188238c8a9a5SSteve French * SecurityBufferOffset should be set to zero 188338c8a9a5SSteve French * in session setup error response. 188438c8a9a5SSteve French */ 188538c8a9a5SSteve French rsp->SecurityBufferOffset = 0; 188638c8a9a5SSteve French 188738c8a9a5SSteve French if (sess) { 188838c8a9a5SSteve French bool try_delay = false; 188938c8a9a5SSteve French 189038c8a9a5SSteve French /* 189138c8a9a5SSteve French * To avoid dictionary attacks (repeated session setups rapidly sent) to 189238c8a9a5SSteve French * connect to server, ksmbd make a delay of a 5 seconds on session setup 189338c8a9a5SSteve French * failure to make it harder to send enough random connection requests 189438c8a9a5SSteve French * to break into a server. 189538c8a9a5SSteve French */ 189638c8a9a5SSteve French if (sess->user && sess->user->flags & KSMBD_USER_FLAG_DELAY_SESSION) 189738c8a9a5SSteve French try_delay = true; 189838c8a9a5SSteve French 189938c8a9a5SSteve French sess->last_active = jiffies; 190038c8a9a5SSteve French sess->state = SMB2_SESSION_EXPIRED; 190138c8a9a5SSteve French if (try_delay) { 190238c8a9a5SSteve French ksmbd_conn_set_need_reconnect(conn); 190338c8a9a5SSteve French ssleep(5); 190438c8a9a5SSteve French ksmbd_conn_set_need_negotiate(conn); 190538c8a9a5SSteve French } 190638c8a9a5SSteve French } 19070e2378eaSNamjae Jeon smb2_set_err_rsp(work); 1908e2b76ab8SNamjae Jeon } else { 1909e2b76ab8SNamjae Jeon unsigned int iov_len; 1910e2b76ab8SNamjae Jeon 1911e2b76ab8SNamjae Jeon if (rsp->SecurityBufferLength) 1912e2b76ab8SNamjae Jeon iov_len = offsetof(struct smb2_sess_setup_rsp, Buffer) + 1913e2b76ab8SNamjae Jeon le16_to_cpu(rsp->SecurityBufferLength); 1914e2b76ab8SNamjae Jeon else 1915e2b76ab8SNamjae Jeon iov_len = sizeof(struct smb2_sess_setup_rsp); 1916e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, rsp, iov_len); 1917e2b76ab8SNamjae Jeon if (rc) 1918e2b76ab8SNamjae Jeon rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 191938c8a9a5SSteve French } 192038c8a9a5SSteve French 192138c8a9a5SSteve French ksmbd_conn_unlock(conn); 192238c8a9a5SSteve French return rc; 192338c8a9a5SSteve French } 192438c8a9a5SSteve French 192538c8a9a5SSteve French /** 192638c8a9a5SSteve French * smb2_tree_connect() - handler for smb2 tree connect command 192738c8a9a5SSteve French * @work: smb work containing smb request buffer 192838c8a9a5SSteve French * 192938c8a9a5SSteve French * Return: 0 on success, otherwise error 193038c8a9a5SSteve French */ 193138c8a9a5SSteve French int smb2_tree_connect(struct ksmbd_work *work) 193238c8a9a5SSteve French { 193338c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 19347b7d709eSNamjae Jeon struct smb2_tree_connect_req *req; 19357b7d709eSNamjae Jeon struct smb2_tree_connect_rsp *rsp; 193638c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 193738c8a9a5SSteve French char *treename = NULL, *name = NULL; 193838c8a9a5SSteve French struct ksmbd_tree_conn_status status; 193938c8a9a5SSteve French struct ksmbd_share_config *share; 194038c8a9a5SSteve French int rc = -EINVAL; 194138c8a9a5SSteve French 19427b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 19437b7d709eSNamjae Jeon 194438c8a9a5SSteve French treename = smb_strndup_from_utf16(req->Buffer, 194538c8a9a5SSteve French le16_to_cpu(req->PathLength), true, 194638c8a9a5SSteve French conn->local_nls); 194738c8a9a5SSteve French if (IS_ERR(treename)) { 194838c8a9a5SSteve French pr_err("treename is NULL\n"); 194938c8a9a5SSteve French status.ret = KSMBD_TREE_CONN_STATUS_ERROR; 195038c8a9a5SSteve French goto out_err1; 195138c8a9a5SSteve French } 195238c8a9a5SSteve French 195338c8a9a5SSteve French name = ksmbd_extract_sharename(conn->um, treename); 195438c8a9a5SSteve French if (IS_ERR(name)) { 195538c8a9a5SSteve French status.ret = KSMBD_TREE_CONN_STATUS_ERROR; 195638c8a9a5SSteve French goto out_err1; 195738c8a9a5SSteve French } 195838c8a9a5SSteve French 195938c8a9a5SSteve French ksmbd_debug(SMB, "tree connect request for tree %s treename %s\n", 196038c8a9a5SSteve French name, treename); 196138c8a9a5SSteve French 196238c8a9a5SSteve French status = ksmbd_tree_conn_connect(conn, sess, name); 196338c8a9a5SSteve French if (status.ret == KSMBD_TREE_CONN_STATUS_OK) 196438c8a9a5SSteve French rsp->hdr.Id.SyncId.TreeId = cpu_to_le32(status.tree_conn->id); 196538c8a9a5SSteve French else 196638c8a9a5SSteve French goto out_err1; 196738c8a9a5SSteve French 196838c8a9a5SSteve French share = status.tree_conn->share_conf; 196938c8a9a5SSteve French if (test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) { 197038c8a9a5SSteve French ksmbd_debug(SMB, "IPC share path request\n"); 197138c8a9a5SSteve French rsp->ShareType = SMB2_SHARE_TYPE_PIPE; 197238c8a9a5SSteve French rsp->MaximalAccess = FILE_READ_DATA_LE | FILE_READ_EA_LE | 197338c8a9a5SSteve French FILE_EXECUTE_LE | FILE_READ_ATTRIBUTES_LE | 197438c8a9a5SSteve French FILE_DELETE_LE | FILE_READ_CONTROL_LE | 197538c8a9a5SSteve French FILE_WRITE_DAC_LE | FILE_WRITE_OWNER_LE | 197638c8a9a5SSteve French FILE_SYNCHRONIZE_LE; 197738c8a9a5SSteve French } else { 197838c8a9a5SSteve French rsp->ShareType = SMB2_SHARE_TYPE_DISK; 197938c8a9a5SSteve French rsp->MaximalAccess = FILE_READ_DATA_LE | FILE_READ_EA_LE | 198038c8a9a5SSteve French FILE_EXECUTE_LE | FILE_READ_ATTRIBUTES_LE; 198138c8a9a5SSteve French if (test_tree_conn_flag(status.tree_conn, 198238c8a9a5SSteve French KSMBD_TREE_CONN_FLAG_WRITABLE)) { 198338c8a9a5SSteve French rsp->MaximalAccess |= FILE_WRITE_DATA_LE | 198438c8a9a5SSteve French FILE_APPEND_DATA_LE | FILE_WRITE_EA_LE | 198538c8a9a5SSteve French FILE_DELETE_LE | FILE_WRITE_ATTRIBUTES_LE | 198638c8a9a5SSteve French FILE_DELETE_CHILD_LE | FILE_READ_CONTROL_LE | 198738c8a9a5SSteve French FILE_WRITE_DAC_LE | FILE_WRITE_OWNER_LE | 198838c8a9a5SSteve French FILE_SYNCHRONIZE_LE; 198938c8a9a5SSteve French } 199038c8a9a5SSteve French } 199138c8a9a5SSteve French 199238c8a9a5SSteve French status.tree_conn->maximal_access = le32_to_cpu(rsp->MaximalAccess); 199338c8a9a5SSteve French if (conn->posix_ext_supported) 199438c8a9a5SSteve French status.tree_conn->posix_extensions = true; 199538c8a9a5SSteve French 199638c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(16); 199738c8a9a5SSteve French out_err1: 199838c8a9a5SSteve French rsp->Capabilities = 0; 199938c8a9a5SSteve French rsp->Reserved = 0; 200038c8a9a5SSteve French /* default manual caching */ 200138c8a9a5SSteve French rsp->ShareFlags = SMB2_SHAREFLAG_MANUAL_CACHING; 200238c8a9a5SSteve French 2003e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_tree_connect_rsp)); 2004e2b76ab8SNamjae Jeon if (rc) 2005e2b76ab8SNamjae Jeon status.ret = KSMBD_TREE_CONN_STATUS_NOMEM; 2006e2b76ab8SNamjae Jeon 200738c8a9a5SSteve French if (!IS_ERR(treename)) 200838c8a9a5SSteve French kfree(treename); 200938c8a9a5SSteve French if (!IS_ERR(name)) 201038c8a9a5SSteve French kfree(name); 201138c8a9a5SSteve French 201238c8a9a5SSteve French switch (status.ret) { 201338c8a9a5SSteve French case KSMBD_TREE_CONN_STATUS_OK: 201438c8a9a5SSteve French rsp->hdr.Status = STATUS_SUCCESS; 201538c8a9a5SSteve French rc = 0; 201638c8a9a5SSteve French break; 201738c8a9a5SSteve French case -ESTALE: 201838c8a9a5SSteve French case -ENOENT: 201938c8a9a5SSteve French case KSMBD_TREE_CONN_STATUS_NO_SHARE: 202038c8a9a5SSteve French rsp->hdr.Status = STATUS_BAD_NETWORK_NAME; 202138c8a9a5SSteve French break; 202238c8a9a5SSteve French case -ENOMEM: 202338c8a9a5SSteve French case KSMBD_TREE_CONN_STATUS_NOMEM: 202438c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MEMORY; 202538c8a9a5SSteve French break; 202638c8a9a5SSteve French case KSMBD_TREE_CONN_STATUS_ERROR: 202738c8a9a5SSteve French case KSMBD_TREE_CONN_STATUS_TOO_MANY_CONNS: 202838c8a9a5SSteve French case KSMBD_TREE_CONN_STATUS_TOO_MANY_SESSIONS: 202938c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 203038c8a9a5SSteve French break; 203138c8a9a5SSteve French case -EINVAL: 203238c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 203338c8a9a5SSteve French break; 203438c8a9a5SSteve French default: 203538c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 203638c8a9a5SSteve French } 203738c8a9a5SSteve French 203838c8a9a5SSteve French if (status.ret != KSMBD_TREE_CONN_STATUS_OK) 203938c8a9a5SSteve French smb2_set_err_rsp(work); 204038c8a9a5SSteve French 204138c8a9a5SSteve French return rc; 204238c8a9a5SSteve French } 204338c8a9a5SSteve French 204438c8a9a5SSteve French /** 204538c8a9a5SSteve French * smb2_create_open_flags() - convert smb open flags to unix open flags 204638c8a9a5SSteve French * @file_present: is file already present 204738c8a9a5SSteve French * @access: file access flags 204838c8a9a5SSteve French * @disposition: file disposition flags 204938c8a9a5SSteve French * @may_flags: set with MAY_ flags 205038c8a9a5SSteve French * 205138c8a9a5SSteve French * Return: file open flags 205238c8a9a5SSteve French */ 205338c8a9a5SSteve French static int smb2_create_open_flags(bool file_present, __le32 access, 205438c8a9a5SSteve French __le32 disposition, 205538c8a9a5SSteve French int *may_flags) 205638c8a9a5SSteve French { 205738c8a9a5SSteve French int oflags = O_NONBLOCK | O_LARGEFILE; 205838c8a9a5SSteve French 205938c8a9a5SSteve French if (access & FILE_READ_DESIRED_ACCESS_LE && 206038c8a9a5SSteve French access & FILE_WRITE_DESIRE_ACCESS_LE) { 206138c8a9a5SSteve French oflags |= O_RDWR; 206238c8a9a5SSteve French *may_flags = MAY_OPEN | MAY_READ | MAY_WRITE; 206338c8a9a5SSteve French } else if (access & FILE_WRITE_DESIRE_ACCESS_LE) { 206438c8a9a5SSteve French oflags |= O_WRONLY; 206538c8a9a5SSteve French *may_flags = MAY_OPEN | MAY_WRITE; 206638c8a9a5SSteve French } else { 206738c8a9a5SSteve French oflags |= O_RDONLY; 206838c8a9a5SSteve French *may_flags = MAY_OPEN | MAY_READ; 206938c8a9a5SSteve French } 207038c8a9a5SSteve French 207138c8a9a5SSteve French if (access == FILE_READ_ATTRIBUTES_LE) 207238c8a9a5SSteve French oflags |= O_PATH; 207338c8a9a5SSteve French 207438c8a9a5SSteve French if (file_present) { 207538c8a9a5SSteve French switch (disposition & FILE_CREATE_MASK_LE) { 207638c8a9a5SSteve French case FILE_OPEN_LE: 207738c8a9a5SSteve French case FILE_CREATE_LE: 207838c8a9a5SSteve French break; 207938c8a9a5SSteve French case FILE_SUPERSEDE_LE: 208038c8a9a5SSteve French case FILE_OVERWRITE_LE: 208138c8a9a5SSteve French case FILE_OVERWRITE_IF_LE: 208238c8a9a5SSteve French oflags |= O_TRUNC; 208338c8a9a5SSteve French break; 208438c8a9a5SSteve French default: 208538c8a9a5SSteve French break; 208638c8a9a5SSteve French } 208738c8a9a5SSteve French } else { 208838c8a9a5SSteve French switch (disposition & FILE_CREATE_MASK_LE) { 208938c8a9a5SSteve French case FILE_SUPERSEDE_LE: 209038c8a9a5SSteve French case FILE_CREATE_LE: 209138c8a9a5SSteve French case FILE_OPEN_IF_LE: 209238c8a9a5SSteve French case FILE_OVERWRITE_IF_LE: 209338c8a9a5SSteve French oflags |= O_CREAT; 209438c8a9a5SSteve French break; 209538c8a9a5SSteve French case FILE_OPEN_LE: 209638c8a9a5SSteve French case FILE_OVERWRITE_LE: 209738c8a9a5SSteve French oflags &= ~O_CREAT; 209838c8a9a5SSteve French break; 209938c8a9a5SSteve French default: 210038c8a9a5SSteve French break; 210138c8a9a5SSteve French } 210238c8a9a5SSteve French } 210338c8a9a5SSteve French 210438c8a9a5SSteve French return oflags; 210538c8a9a5SSteve French } 210638c8a9a5SSteve French 210738c8a9a5SSteve French /** 210838c8a9a5SSteve French * smb2_tree_disconnect() - handler for smb tree connect request 210938c8a9a5SSteve French * @work: smb work containing request buffer 211038c8a9a5SSteve French * 211138c8a9a5SSteve French * Return: 0 211238c8a9a5SSteve French */ 211338c8a9a5SSteve French int smb2_tree_disconnect(struct ksmbd_work *work) 211438c8a9a5SSteve French { 21157b7d709eSNamjae Jeon struct smb2_tree_disconnect_rsp *rsp; 21167b7d709eSNamjae Jeon struct smb2_tree_disconnect_req *req; 211738c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 211838c8a9a5SSteve French struct ksmbd_tree_connect *tcon = work->tcon; 2119e2b76ab8SNamjae Jeon int err; 212038c8a9a5SSteve French 21217b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 21227b7d709eSNamjae Jeon 212338c8a9a5SSteve French ksmbd_debug(SMB, "request\n"); 212438c8a9a5SSteve French 2125e2b76ab8SNamjae Jeon rsp->StructureSize = cpu_to_le16(4); 2126e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, rsp, 2127e2b76ab8SNamjae Jeon sizeof(struct smb2_tree_disconnect_rsp)); 2128e2b76ab8SNamjae Jeon if (err) { 2129e2b76ab8SNamjae Jeon rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 2130e2b76ab8SNamjae Jeon smb2_set_err_rsp(work); 2131e2b76ab8SNamjae Jeon return err; 2132e2b76ab8SNamjae Jeon } 2133e2b76ab8SNamjae Jeon 213438c8a9a5SSteve French if (!tcon || test_and_set_bit(TREE_CONN_EXPIRE, &tcon->status)) { 213538c8a9a5SSteve French ksmbd_debug(SMB, "Invalid tid %d\n", req->hdr.Id.SyncId.TreeId); 213638c8a9a5SSteve French 213738c8a9a5SSteve French rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED; 213838c8a9a5SSteve French smb2_set_err_rsp(work); 2139e2b76ab8SNamjae Jeon return -ENOENT; 214038c8a9a5SSteve French } 214138c8a9a5SSteve French 214238c8a9a5SSteve French ksmbd_close_tree_conn_fds(work); 214338c8a9a5SSteve French ksmbd_tree_conn_disconnect(sess, tcon); 214438c8a9a5SSteve French work->tcon = NULL; 214538c8a9a5SSteve French return 0; 214638c8a9a5SSteve French } 214738c8a9a5SSteve French 214838c8a9a5SSteve French /** 214938c8a9a5SSteve French * smb2_session_logoff() - handler for session log off request 215038c8a9a5SSteve French * @work: smb work containing request buffer 215138c8a9a5SSteve French * 215238c8a9a5SSteve French * Return: 0 215338c8a9a5SSteve French */ 215438c8a9a5SSteve French int smb2_session_logoff(struct ksmbd_work *work) 215538c8a9a5SSteve French { 215638c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 21577b7d709eSNamjae Jeon struct smb2_logoff_req *req; 21587b7d709eSNamjae Jeon struct smb2_logoff_rsp *rsp; 215938c8a9a5SSteve French struct ksmbd_session *sess; 21607b7d709eSNamjae Jeon u64 sess_id; 2161e2b76ab8SNamjae Jeon int err; 21627b7d709eSNamjae Jeon 21637b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 21647b7d709eSNamjae Jeon 2165e2b76ab8SNamjae Jeon ksmbd_debug(SMB, "request\n"); 2166e2b76ab8SNamjae Jeon 21677b7d709eSNamjae Jeon sess_id = le64_to_cpu(req->hdr.SessionId); 216838c8a9a5SSteve French 216938c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(4); 2170e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_logoff_rsp)); 2171e2b76ab8SNamjae Jeon if (err) { 2172e2b76ab8SNamjae Jeon rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 2173e2b76ab8SNamjae Jeon smb2_set_err_rsp(work); 2174e2b76ab8SNamjae Jeon return err; 2175e2b76ab8SNamjae Jeon } 217638c8a9a5SSteve French 217738c8a9a5SSteve French ksmbd_all_conn_set_status(sess_id, KSMBD_SESS_NEED_RECONNECT); 217838c8a9a5SSteve French ksmbd_close_session_fds(work); 217938c8a9a5SSteve French ksmbd_conn_wait_idle(conn, sess_id); 218038c8a9a5SSteve French 218138c8a9a5SSteve French /* 218238c8a9a5SSteve French * Re-lookup session to validate if session is deleted 218338c8a9a5SSteve French * while waiting request complete 218438c8a9a5SSteve French */ 218538c8a9a5SSteve French sess = ksmbd_session_lookup_all(conn, sess_id); 218638c8a9a5SSteve French if (ksmbd_tree_conn_session_logoff(sess)) { 218738c8a9a5SSteve French ksmbd_debug(SMB, "Invalid tid %d\n", req->hdr.Id.SyncId.TreeId); 218838c8a9a5SSteve French rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED; 218938c8a9a5SSteve French smb2_set_err_rsp(work); 2190e2b76ab8SNamjae Jeon return -ENOENT; 219138c8a9a5SSteve French } 219238c8a9a5SSteve French 219338c8a9a5SSteve French ksmbd_destroy_file_table(&sess->file_table); 219438c8a9a5SSteve French sess->state = SMB2_SESSION_EXPIRED; 219538c8a9a5SSteve French 219638c8a9a5SSteve French ksmbd_free_user(sess->user); 219738c8a9a5SSteve French sess->user = NULL; 219838c8a9a5SSteve French ksmbd_all_conn_set_status(sess_id, KSMBD_SESS_NEED_NEGOTIATE); 219938c8a9a5SSteve French return 0; 220038c8a9a5SSteve French } 220138c8a9a5SSteve French 220238c8a9a5SSteve French /** 220338c8a9a5SSteve French * create_smb2_pipe() - create IPC pipe 220438c8a9a5SSteve French * @work: smb work containing request buffer 220538c8a9a5SSteve French * 220638c8a9a5SSteve French * Return: 0 on success, otherwise error 220738c8a9a5SSteve French */ 220838c8a9a5SSteve French static noinline int create_smb2_pipe(struct ksmbd_work *work) 220938c8a9a5SSteve French { 22107b7d709eSNamjae Jeon struct smb2_create_rsp *rsp; 22117b7d709eSNamjae Jeon struct smb2_create_req *req; 221238c8a9a5SSteve French int id; 221338c8a9a5SSteve French int err; 221438c8a9a5SSteve French char *name; 221538c8a9a5SSteve French 22167b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 22177b7d709eSNamjae Jeon 221838c8a9a5SSteve French name = smb_strndup_from_utf16(req->Buffer, le16_to_cpu(req->NameLength), 221938c8a9a5SSteve French 1, work->conn->local_nls); 222038c8a9a5SSteve French if (IS_ERR(name)) { 222138c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MEMORY; 222238c8a9a5SSteve French err = PTR_ERR(name); 222338c8a9a5SSteve French goto out; 222438c8a9a5SSteve French } 222538c8a9a5SSteve French 222638c8a9a5SSteve French id = ksmbd_session_rpc_open(work->sess, name); 222738c8a9a5SSteve French if (id < 0) { 222838c8a9a5SSteve French pr_err("Unable to open RPC pipe: %d\n", id); 222938c8a9a5SSteve French err = id; 223038c8a9a5SSteve French goto out; 223138c8a9a5SSteve French } 223238c8a9a5SSteve French 223338c8a9a5SSteve French rsp->hdr.Status = STATUS_SUCCESS; 223438c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(89); 223538c8a9a5SSteve French rsp->OplockLevel = SMB2_OPLOCK_LEVEL_NONE; 223638c8a9a5SSteve French rsp->Flags = 0; 223738c8a9a5SSteve French rsp->CreateAction = cpu_to_le32(FILE_OPENED); 223838c8a9a5SSteve French 223938c8a9a5SSteve French rsp->CreationTime = cpu_to_le64(0); 224038c8a9a5SSteve French rsp->LastAccessTime = cpu_to_le64(0); 224138c8a9a5SSteve French rsp->ChangeTime = cpu_to_le64(0); 224238c8a9a5SSteve French rsp->AllocationSize = cpu_to_le64(0); 224338c8a9a5SSteve French rsp->EndofFile = cpu_to_le64(0); 224438c8a9a5SSteve French rsp->FileAttributes = FILE_ATTRIBUTE_NORMAL_LE; 224538c8a9a5SSteve French rsp->Reserved2 = 0; 224638c8a9a5SSteve French rsp->VolatileFileId = id; 224738c8a9a5SSteve French rsp->PersistentFileId = 0; 224838c8a9a5SSteve French rsp->CreateContextsOffset = 0; 224938c8a9a5SSteve French rsp->CreateContextsLength = 0; 225038c8a9a5SSteve French 2251e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, rsp, offsetof(struct smb2_create_rsp, Buffer)); 2252e2b76ab8SNamjae Jeon if (err) 2253e2b76ab8SNamjae Jeon goto out; 2254e2b76ab8SNamjae Jeon 225538c8a9a5SSteve French kfree(name); 225638c8a9a5SSteve French return 0; 225738c8a9a5SSteve French 225838c8a9a5SSteve French out: 225938c8a9a5SSteve French switch (err) { 226038c8a9a5SSteve French case -EINVAL: 226138c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 226238c8a9a5SSteve French break; 226338c8a9a5SSteve French case -ENOSPC: 226438c8a9a5SSteve French case -ENOMEM: 226538c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MEMORY; 226638c8a9a5SSteve French break; 226738c8a9a5SSteve French } 226838c8a9a5SSteve French 226938c8a9a5SSteve French if (!IS_ERR(name)) 227038c8a9a5SSteve French kfree(name); 227138c8a9a5SSteve French 227238c8a9a5SSteve French smb2_set_err_rsp(work); 227338c8a9a5SSteve French return err; 227438c8a9a5SSteve French } 227538c8a9a5SSteve French 227638c8a9a5SSteve French /** 227738c8a9a5SSteve French * smb2_set_ea() - handler for setting extended attributes using set 227838c8a9a5SSteve French * info command 227938c8a9a5SSteve French * @eabuf: set info command buffer 228038c8a9a5SSteve French * @buf_len: set info command buffer length 228138c8a9a5SSteve French * @path: dentry path for get ea 228238c8a9a5SSteve French * 228338c8a9a5SSteve French * Return: 0 on success, otherwise error 228438c8a9a5SSteve French */ 228538c8a9a5SSteve French static int smb2_set_ea(struct smb2_ea_info *eabuf, unsigned int buf_len, 228638c8a9a5SSteve French const struct path *path) 228738c8a9a5SSteve French { 228838c8a9a5SSteve French struct mnt_idmap *idmap = mnt_idmap(path->mnt); 228938c8a9a5SSteve French char *attr_name = NULL, *value; 229038c8a9a5SSteve French int rc = 0; 229138c8a9a5SSteve French unsigned int next = 0; 229238c8a9a5SSteve French 229338c8a9a5SSteve French if (buf_len < sizeof(struct smb2_ea_info) + eabuf->EaNameLength + 229438c8a9a5SSteve French le16_to_cpu(eabuf->EaValueLength)) 229538c8a9a5SSteve French return -EINVAL; 229638c8a9a5SSteve French 229738c8a9a5SSteve French attr_name = kmalloc(XATTR_NAME_MAX + 1, GFP_KERNEL); 229838c8a9a5SSteve French if (!attr_name) 229938c8a9a5SSteve French return -ENOMEM; 230038c8a9a5SSteve French 230138c8a9a5SSteve French do { 230238c8a9a5SSteve French if (!eabuf->EaNameLength) 230338c8a9a5SSteve French goto next; 230438c8a9a5SSteve French 230538c8a9a5SSteve French ksmbd_debug(SMB, 230638c8a9a5SSteve French "name : <%s>, name_len : %u, value_len : %u, next : %u\n", 230738c8a9a5SSteve French eabuf->name, eabuf->EaNameLength, 230838c8a9a5SSteve French le16_to_cpu(eabuf->EaValueLength), 230938c8a9a5SSteve French le32_to_cpu(eabuf->NextEntryOffset)); 231038c8a9a5SSteve French 231138c8a9a5SSteve French if (eabuf->EaNameLength > 231238c8a9a5SSteve French (XATTR_NAME_MAX - XATTR_USER_PREFIX_LEN)) { 231338c8a9a5SSteve French rc = -EINVAL; 231438c8a9a5SSteve French break; 231538c8a9a5SSteve French } 231638c8a9a5SSteve French 231738c8a9a5SSteve French memcpy(attr_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN); 231838c8a9a5SSteve French memcpy(&attr_name[XATTR_USER_PREFIX_LEN], eabuf->name, 231938c8a9a5SSteve French eabuf->EaNameLength); 232038c8a9a5SSteve French attr_name[XATTR_USER_PREFIX_LEN + eabuf->EaNameLength] = '\0'; 232138c8a9a5SSteve French value = (char *)&eabuf->name + eabuf->EaNameLength + 1; 232238c8a9a5SSteve French 232338c8a9a5SSteve French if (!eabuf->EaValueLength) { 232438c8a9a5SSteve French rc = ksmbd_vfs_casexattr_len(idmap, 232538c8a9a5SSteve French path->dentry, 232638c8a9a5SSteve French attr_name, 232738c8a9a5SSteve French XATTR_USER_PREFIX_LEN + 232838c8a9a5SSteve French eabuf->EaNameLength); 232938c8a9a5SSteve French 233038c8a9a5SSteve French /* delete the EA only when it exits */ 233138c8a9a5SSteve French if (rc > 0) { 233238c8a9a5SSteve French rc = ksmbd_vfs_remove_xattr(idmap, 233340b268d3SNamjae Jeon path, 233438c8a9a5SSteve French attr_name); 233538c8a9a5SSteve French 233638c8a9a5SSteve French if (rc < 0) { 233738c8a9a5SSteve French ksmbd_debug(SMB, 233838c8a9a5SSteve French "remove xattr failed(%d)\n", 233938c8a9a5SSteve French rc); 234038c8a9a5SSteve French break; 234138c8a9a5SSteve French } 234238c8a9a5SSteve French } 234338c8a9a5SSteve French 234438c8a9a5SSteve French /* if the EA doesn't exist, just do nothing. */ 234538c8a9a5SSteve French rc = 0; 234638c8a9a5SSteve French } else { 234740b268d3SNamjae Jeon rc = ksmbd_vfs_setxattr(idmap, path, attr_name, value, 234838c8a9a5SSteve French le16_to_cpu(eabuf->EaValueLength), 0); 234938c8a9a5SSteve French if (rc < 0) { 235038c8a9a5SSteve French ksmbd_debug(SMB, 235138c8a9a5SSteve French "ksmbd_vfs_setxattr is failed(%d)\n", 235238c8a9a5SSteve French rc); 235338c8a9a5SSteve French break; 235438c8a9a5SSteve French } 235538c8a9a5SSteve French } 235638c8a9a5SSteve French 235738c8a9a5SSteve French next: 235838c8a9a5SSteve French next = le32_to_cpu(eabuf->NextEntryOffset); 235938c8a9a5SSteve French if (next == 0 || buf_len < next) 236038c8a9a5SSteve French break; 236138c8a9a5SSteve French buf_len -= next; 236238c8a9a5SSteve French eabuf = (struct smb2_ea_info *)((char *)eabuf + next); 236379ed288cSNamjae Jeon if (buf_len < sizeof(struct smb2_ea_info)) { 236479ed288cSNamjae Jeon rc = -EINVAL; 236538c8a9a5SSteve French break; 236679ed288cSNamjae Jeon } 236738c8a9a5SSteve French 236879ed288cSNamjae Jeon if (buf_len < sizeof(struct smb2_ea_info) + eabuf->EaNameLength + 236979ed288cSNamjae Jeon le16_to_cpu(eabuf->EaValueLength)) { 237079ed288cSNamjae Jeon rc = -EINVAL; 237179ed288cSNamjae Jeon break; 237279ed288cSNamjae Jeon } 237338c8a9a5SSteve French } while (next != 0); 237438c8a9a5SSteve French 237538c8a9a5SSteve French kfree(attr_name); 237638c8a9a5SSteve French return rc; 237738c8a9a5SSteve French } 237838c8a9a5SSteve French 237938c8a9a5SSteve French static noinline int smb2_set_stream_name_xattr(const struct path *path, 238038c8a9a5SSteve French struct ksmbd_file *fp, 238138c8a9a5SSteve French char *stream_name, int s_type) 238238c8a9a5SSteve French { 238338c8a9a5SSteve French struct mnt_idmap *idmap = mnt_idmap(path->mnt); 238438c8a9a5SSteve French size_t xattr_stream_size; 238538c8a9a5SSteve French char *xattr_stream_name; 238638c8a9a5SSteve French int rc; 238738c8a9a5SSteve French 238838c8a9a5SSteve French rc = ksmbd_vfs_xattr_stream_name(stream_name, 238938c8a9a5SSteve French &xattr_stream_name, 239038c8a9a5SSteve French &xattr_stream_size, 239138c8a9a5SSteve French s_type); 239238c8a9a5SSteve French if (rc) 239338c8a9a5SSteve French return rc; 239438c8a9a5SSteve French 239538c8a9a5SSteve French fp->stream.name = xattr_stream_name; 239638c8a9a5SSteve French fp->stream.size = xattr_stream_size; 239738c8a9a5SSteve French 239838c8a9a5SSteve French /* Check if there is stream prefix in xattr space */ 239938c8a9a5SSteve French rc = ksmbd_vfs_casexattr_len(idmap, 240038c8a9a5SSteve French path->dentry, 240138c8a9a5SSteve French xattr_stream_name, 240238c8a9a5SSteve French xattr_stream_size); 240338c8a9a5SSteve French if (rc >= 0) 240438c8a9a5SSteve French return 0; 240538c8a9a5SSteve French 240638c8a9a5SSteve French if (fp->cdoption == FILE_OPEN_LE) { 240738c8a9a5SSteve French ksmbd_debug(SMB, "XATTR stream name lookup failed: %d\n", rc); 240838c8a9a5SSteve French return -EBADF; 240938c8a9a5SSteve French } 241038c8a9a5SSteve French 241140b268d3SNamjae Jeon rc = ksmbd_vfs_setxattr(idmap, path, xattr_stream_name, NULL, 0, 0); 241238c8a9a5SSteve French if (rc < 0) 241338c8a9a5SSteve French pr_err("Failed to store XATTR stream name :%d\n", rc); 241438c8a9a5SSteve French return 0; 241538c8a9a5SSteve French } 241638c8a9a5SSteve French 241738c8a9a5SSteve French static int smb2_remove_smb_xattrs(const struct path *path) 241838c8a9a5SSteve French { 241938c8a9a5SSteve French struct mnt_idmap *idmap = mnt_idmap(path->mnt); 242038c8a9a5SSteve French char *name, *xattr_list = NULL; 242138c8a9a5SSteve French ssize_t xattr_list_len; 242238c8a9a5SSteve French int err = 0; 242338c8a9a5SSteve French 242438c8a9a5SSteve French xattr_list_len = ksmbd_vfs_listxattr(path->dentry, &xattr_list); 242538c8a9a5SSteve French if (xattr_list_len < 0) { 242638c8a9a5SSteve French goto out; 242738c8a9a5SSteve French } else if (!xattr_list_len) { 242838c8a9a5SSteve French ksmbd_debug(SMB, "empty xattr in the file\n"); 242938c8a9a5SSteve French goto out; 243038c8a9a5SSteve French } 243138c8a9a5SSteve French 243238c8a9a5SSteve French for (name = xattr_list; name - xattr_list < xattr_list_len; 243338c8a9a5SSteve French name += strlen(name) + 1) { 243438c8a9a5SSteve French ksmbd_debug(SMB, "%s, len %zd\n", name, strlen(name)); 243538c8a9a5SSteve French 243638c8a9a5SSteve French if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) && 243738c8a9a5SSteve French !strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, 243838c8a9a5SSteve French STREAM_PREFIX_LEN)) { 243940b268d3SNamjae Jeon err = ksmbd_vfs_remove_xattr(idmap, path, 244038c8a9a5SSteve French name); 244138c8a9a5SSteve French if (err) 244238c8a9a5SSteve French ksmbd_debug(SMB, "remove xattr failed : %s\n", 244338c8a9a5SSteve French name); 244438c8a9a5SSteve French } 244538c8a9a5SSteve French } 244638c8a9a5SSteve French out: 244738c8a9a5SSteve French kvfree(xattr_list); 244838c8a9a5SSteve French return err; 244938c8a9a5SSteve French } 245038c8a9a5SSteve French 245138c8a9a5SSteve French static int smb2_create_truncate(const struct path *path) 245238c8a9a5SSteve French { 245338c8a9a5SSteve French int rc = vfs_truncate(path, 0); 245438c8a9a5SSteve French 245538c8a9a5SSteve French if (rc) { 245638c8a9a5SSteve French pr_err("vfs_truncate failed, rc %d\n", rc); 245738c8a9a5SSteve French return rc; 245838c8a9a5SSteve French } 245938c8a9a5SSteve French 246038c8a9a5SSteve French rc = smb2_remove_smb_xattrs(path); 246138c8a9a5SSteve French if (rc == -EOPNOTSUPP) 246238c8a9a5SSteve French rc = 0; 246338c8a9a5SSteve French if (rc) 246438c8a9a5SSteve French ksmbd_debug(SMB, 246538c8a9a5SSteve French "ksmbd_truncate_stream_name_xattr failed, rc %d\n", 246638c8a9a5SSteve French rc); 246738c8a9a5SSteve French return rc; 246838c8a9a5SSteve French } 246938c8a9a5SSteve French 247038c8a9a5SSteve French static void smb2_new_xattrs(struct ksmbd_tree_connect *tcon, const struct path *path, 247138c8a9a5SSteve French struct ksmbd_file *fp) 247238c8a9a5SSteve French { 247338c8a9a5SSteve French struct xattr_dos_attrib da = {0}; 247438c8a9a5SSteve French int rc; 247538c8a9a5SSteve French 247638c8a9a5SSteve French if (!test_share_config_flag(tcon->share_conf, 247738c8a9a5SSteve French KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) 247838c8a9a5SSteve French return; 247938c8a9a5SSteve French 248038c8a9a5SSteve French da.version = 4; 248138c8a9a5SSteve French da.attr = le32_to_cpu(fp->f_ci->m_fattr); 248238c8a9a5SSteve French da.itime = da.create_time = fp->create_time; 248338c8a9a5SSteve French da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME | 248438c8a9a5SSteve French XATTR_DOSINFO_ITIME; 248538c8a9a5SSteve French 248640b268d3SNamjae Jeon rc = ksmbd_vfs_set_dos_attrib_xattr(mnt_idmap(path->mnt), path, &da); 248738c8a9a5SSteve French if (rc) 248838c8a9a5SSteve French ksmbd_debug(SMB, "failed to store file attribute into xattr\n"); 248938c8a9a5SSteve French } 249038c8a9a5SSteve French 249138c8a9a5SSteve French static void smb2_update_xattrs(struct ksmbd_tree_connect *tcon, 249238c8a9a5SSteve French const struct path *path, struct ksmbd_file *fp) 249338c8a9a5SSteve French { 249438c8a9a5SSteve French struct xattr_dos_attrib da; 249538c8a9a5SSteve French int rc; 249638c8a9a5SSteve French 249738c8a9a5SSteve French fp->f_ci->m_fattr &= ~(FILE_ATTRIBUTE_HIDDEN_LE | FILE_ATTRIBUTE_SYSTEM_LE); 249838c8a9a5SSteve French 249938c8a9a5SSteve French /* get FileAttributes from XATTR_NAME_DOS_ATTRIBUTE */ 250038c8a9a5SSteve French if (!test_share_config_flag(tcon->share_conf, 250138c8a9a5SSteve French KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) 250238c8a9a5SSteve French return; 250338c8a9a5SSteve French 250438c8a9a5SSteve French rc = ksmbd_vfs_get_dos_attrib_xattr(mnt_idmap(path->mnt), 250538c8a9a5SSteve French path->dentry, &da); 250638c8a9a5SSteve French if (rc > 0) { 250738c8a9a5SSteve French fp->f_ci->m_fattr = cpu_to_le32(da.attr); 250838c8a9a5SSteve French fp->create_time = da.create_time; 250938c8a9a5SSteve French fp->itime = da.itime; 251038c8a9a5SSteve French } 251138c8a9a5SSteve French } 251238c8a9a5SSteve French 25132b57a432SNamjae Jeon static int smb2_creat(struct ksmbd_work *work, struct path *parent_path, 25142b57a432SNamjae Jeon struct path *path, char *name, int open_flags, 25152b57a432SNamjae Jeon umode_t posix_mode, bool is_dir) 251638c8a9a5SSteve French { 251738c8a9a5SSteve French struct ksmbd_tree_connect *tcon = work->tcon; 251838c8a9a5SSteve French struct ksmbd_share_config *share = tcon->share_conf; 251938c8a9a5SSteve French umode_t mode; 252038c8a9a5SSteve French int rc; 252138c8a9a5SSteve French 252238c8a9a5SSteve French if (!(open_flags & O_CREAT)) 252338c8a9a5SSteve French return -EBADF; 252438c8a9a5SSteve French 252538c8a9a5SSteve French ksmbd_debug(SMB, "file does not exist, so creating\n"); 252638c8a9a5SSteve French if (is_dir == true) { 252738c8a9a5SSteve French ksmbd_debug(SMB, "creating directory\n"); 252838c8a9a5SSteve French 252938c8a9a5SSteve French mode = share_config_directory_mode(share, posix_mode); 253038c8a9a5SSteve French rc = ksmbd_vfs_mkdir(work, name, mode); 253138c8a9a5SSteve French if (rc) 253238c8a9a5SSteve French return rc; 253338c8a9a5SSteve French } else { 253438c8a9a5SSteve French ksmbd_debug(SMB, "creating regular file\n"); 253538c8a9a5SSteve French 253638c8a9a5SSteve French mode = share_config_create_mode(share, posix_mode); 253738c8a9a5SSteve French rc = ksmbd_vfs_create(work, name, mode); 253838c8a9a5SSteve French if (rc) 253938c8a9a5SSteve French return rc; 254038c8a9a5SSteve French } 254138c8a9a5SSteve French 25422b57a432SNamjae Jeon rc = ksmbd_vfs_kern_path_locked(work, name, 0, parent_path, path, 0); 254338c8a9a5SSteve French if (rc) { 254438c8a9a5SSteve French pr_err("cannot get linux path (%s), err = %d\n", 254538c8a9a5SSteve French name, rc); 254638c8a9a5SSteve French return rc; 254738c8a9a5SSteve French } 254838c8a9a5SSteve French return 0; 254938c8a9a5SSteve French } 255038c8a9a5SSteve French 255138c8a9a5SSteve French static int smb2_create_sd_buffer(struct ksmbd_work *work, 255238c8a9a5SSteve French struct smb2_create_req *req, 255338c8a9a5SSteve French const struct path *path) 255438c8a9a5SSteve French { 255538c8a9a5SSteve French struct create_context *context; 255638c8a9a5SSteve French struct create_sd_buf_req *sd_buf; 255738c8a9a5SSteve French 255838c8a9a5SSteve French if (!req->CreateContextsOffset) 255938c8a9a5SSteve French return -ENOENT; 256038c8a9a5SSteve French 256138c8a9a5SSteve French /* Parse SD BUFFER create contexts */ 256238c8a9a5SSteve French context = smb2_find_context_vals(req, SMB2_CREATE_SD_BUFFER, 4); 256338c8a9a5SSteve French if (!context) 256438c8a9a5SSteve French return -ENOENT; 256538c8a9a5SSteve French else if (IS_ERR(context)) 256638c8a9a5SSteve French return PTR_ERR(context); 256738c8a9a5SSteve French 256838c8a9a5SSteve French ksmbd_debug(SMB, 256938c8a9a5SSteve French "Set ACLs using SMB2_CREATE_SD_BUFFER context\n"); 257038c8a9a5SSteve French sd_buf = (struct create_sd_buf_req *)context; 257138c8a9a5SSteve French if (le16_to_cpu(context->DataOffset) + 257238c8a9a5SSteve French le32_to_cpu(context->DataLength) < 257338c8a9a5SSteve French sizeof(struct create_sd_buf_req)) 257438c8a9a5SSteve French return -EINVAL; 257538c8a9a5SSteve French return set_info_sec(work->conn, work->tcon, path, &sd_buf->ntsd, 257638c8a9a5SSteve French le32_to_cpu(sd_buf->ccontext.DataLength), true); 257738c8a9a5SSteve French } 257838c8a9a5SSteve French 257938c8a9a5SSteve French static void ksmbd_acls_fattr(struct smb_fattr *fattr, 258038c8a9a5SSteve French struct mnt_idmap *idmap, 258138c8a9a5SSteve French struct inode *inode) 258238c8a9a5SSteve French { 258338c8a9a5SSteve French vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode); 258438c8a9a5SSteve French vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode); 258538c8a9a5SSteve French 258638c8a9a5SSteve French fattr->cf_uid = vfsuid_into_kuid(vfsuid); 258738c8a9a5SSteve French fattr->cf_gid = vfsgid_into_kgid(vfsgid); 258838c8a9a5SSteve French fattr->cf_mode = inode->i_mode; 258938c8a9a5SSteve French fattr->cf_acls = NULL; 259038c8a9a5SSteve French fattr->cf_dacls = NULL; 259138c8a9a5SSteve French 259238c8a9a5SSteve French if (IS_ENABLED(CONFIG_FS_POSIX_ACL)) { 259338c8a9a5SSteve French fattr->cf_acls = get_inode_acl(inode, ACL_TYPE_ACCESS); 259438c8a9a5SSteve French if (S_ISDIR(inode->i_mode)) 259538c8a9a5SSteve French fattr->cf_dacls = get_inode_acl(inode, ACL_TYPE_DEFAULT); 259638c8a9a5SSteve French } 259738c8a9a5SSteve French } 259838c8a9a5SSteve French 259938c8a9a5SSteve French /** 260038c8a9a5SSteve French * smb2_open() - handler for smb file open request 260138c8a9a5SSteve French * @work: smb work containing request buffer 260238c8a9a5SSteve French * 260338c8a9a5SSteve French * Return: 0 on success, otherwise error 260438c8a9a5SSteve French */ 260538c8a9a5SSteve French int smb2_open(struct ksmbd_work *work) 260638c8a9a5SSteve French { 260738c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 260838c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 260938c8a9a5SSteve French struct ksmbd_tree_connect *tcon = work->tcon; 261038c8a9a5SSteve French struct smb2_create_req *req; 261138c8a9a5SSteve French struct smb2_create_rsp *rsp; 26122b57a432SNamjae Jeon struct path path, parent_path; 261338c8a9a5SSteve French struct ksmbd_share_config *share = tcon->share_conf; 261438c8a9a5SSteve French struct ksmbd_file *fp = NULL; 261538c8a9a5SSteve French struct file *filp = NULL; 261638c8a9a5SSteve French struct mnt_idmap *idmap = NULL; 261738c8a9a5SSteve French struct kstat stat; 261838c8a9a5SSteve French struct create_context *context; 261938c8a9a5SSteve French struct lease_ctx_info *lc = NULL; 262038c8a9a5SSteve French struct create_ea_buf_req *ea_buf = NULL; 262138c8a9a5SSteve French struct oplock_info *opinfo; 262238c8a9a5SSteve French __le32 *next_ptr = NULL; 262338c8a9a5SSteve French int req_op_level = 0, open_flags = 0, may_flags = 0, file_info = 0; 262438c8a9a5SSteve French int rc = 0; 262538c8a9a5SSteve French int contxt_cnt = 0, query_disk_id = 0; 262638c8a9a5SSteve French int maximal_access_ctxt = 0, posix_ctxt = 0; 262738c8a9a5SSteve French int s_type = 0; 262838c8a9a5SSteve French int next_off = 0; 262938c8a9a5SSteve French char *name = NULL; 263038c8a9a5SSteve French char *stream_name = NULL; 263138c8a9a5SSteve French bool file_present = false, created = false, already_permitted = false; 263238c8a9a5SSteve French int share_ret, need_truncate = 0; 263338c8a9a5SSteve French u64 time; 263438c8a9a5SSteve French umode_t posix_mode = 0; 263538c8a9a5SSteve French __le32 daccess, maximal_access = 0; 2636e2b76ab8SNamjae Jeon int iov_len = 0; 263738c8a9a5SSteve French 263838c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 263938c8a9a5SSteve French 264038c8a9a5SSteve French if (req->hdr.NextCommand && !work->next_smb2_rcv_hdr_off && 264138c8a9a5SSteve French (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS)) { 264238c8a9a5SSteve French ksmbd_debug(SMB, "invalid flag in chained command\n"); 264338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 264438c8a9a5SSteve French smb2_set_err_rsp(work); 264538c8a9a5SSteve French return -EINVAL; 264638c8a9a5SSteve French } 264738c8a9a5SSteve French 264838c8a9a5SSteve French if (test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) { 264938c8a9a5SSteve French ksmbd_debug(SMB, "IPC pipe create request\n"); 265038c8a9a5SSteve French return create_smb2_pipe(work); 265138c8a9a5SSteve French } 265238c8a9a5SSteve French 265338c8a9a5SSteve French if (req->NameLength) { 265438c8a9a5SSteve French if ((req->CreateOptions & FILE_DIRECTORY_FILE_LE) && 265538c8a9a5SSteve French *(char *)req->Buffer == '\\') { 265638c8a9a5SSteve French pr_err("not allow directory name included leading slash\n"); 265738c8a9a5SSteve French rc = -EINVAL; 265838c8a9a5SSteve French goto err_out1; 265938c8a9a5SSteve French } 266038c8a9a5SSteve French 266138c8a9a5SSteve French name = smb2_get_name(req->Buffer, 266238c8a9a5SSteve French le16_to_cpu(req->NameLength), 266338c8a9a5SSteve French work->conn->local_nls); 266438c8a9a5SSteve French if (IS_ERR(name)) { 266538c8a9a5SSteve French rc = PTR_ERR(name); 266638c8a9a5SSteve French if (rc != -ENOMEM) 266738c8a9a5SSteve French rc = -ENOENT; 266838c8a9a5SSteve French name = NULL; 266938c8a9a5SSteve French goto err_out1; 267038c8a9a5SSteve French } 267138c8a9a5SSteve French 267238c8a9a5SSteve French ksmbd_debug(SMB, "converted name = %s\n", name); 267338c8a9a5SSteve French if (strchr(name, ':')) { 267438c8a9a5SSteve French if (!test_share_config_flag(work->tcon->share_conf, 267538c8a9a5SSteve French KSMBD_SHARE_FLAG_STREAMS)) { 267638c8a9a5SSteve French rc = -EBADF; 267738c8a9a5SSteve French goto err_out1; 267838c8a9a5SSteve French } 267938c8a9a5SSteve French rc = parse_stream_name(name, &stream_name, &s_type); 268038c8a9a5SSteve French if (rc < 0) 268138c8a9a5SSteve French goto err_out1; 268238c8a9a5SSteve French } 268338c8a9a5SSteve French 268438c8a9a5SSteve French rc = ksmbd_validate_filename(name); 268538c8a9a5SSteve French if (rc < 0) 268638c8a9a5SSteve French goto err_out1; 268738c8a9a5SSteve French 268838c8a9a5SSteve French if (ksmbd_share_veto_filename(share, name)) { 268938c8a9a5SSteve French rc = -ENOENT; 269038c8a9a5SSteve French ksmbd_debug(SMB, "Reject open(), vetoed file: %s\n", 269138c8a9a5SSteve French name); 269238c8a9a5SSteve French goto err_out1; 269338c8a9a5SSteve French } 269438c8a9a5SSteve French } else { 269538c8a9a5SSteve French name = kstrdup("", GFP_KERNEL); 269638c8a9a5SSteve French if (!name) { 269738c8a9a5SSteve French rc = -ENOMEM; 269838c8a9a5SSteve French goto err_out1; 269938c8a9a5SSteve French } 270038c8a9a5SSteve French } 270138c8a9a5SSteve French 270238c8a9a5SSteve French req_op_level = req->RequestedOplockLevel; 270338c8a9a5SSteve French if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) 270438c8a9a5SSteve French lc = parse_lease_state(req); 270538c8a9a5SSteve French 270638c8a9a5SSteve French if (le32_to_cpu(req->ImpersonationLevel) > le32_to_cpu(IL_DELEGATE)) { 270738c8a9a5SSteve French pr_err("Invalid impersonationlevel : 0x%x\n", 270838c8a9a5SSteve French le32_to_cpu(req->ImpersonationLevel)); 270938c8a9a5SSteve French rc = -EIO; 271038c8a9a5SSteve French rsp->hdr.Status = STATUS_BAD_IMPERSONATION_LEVEL; 271138c8a9a5SSteve French goto err_out1; 271238c8a9a5SSteve French } 271338c8a9a5SSteve French 271438c8a9a5SSteve French if (req->CreateOptions && !(req->CreateOptions & CREATE_OPTIONS_MASK_LE)) { 271538c8a9a5SSteve French pr_err("Invalid create options : 0x%x\n", 271638c8a9a5SSteve French le32_to_cpu(req->CreateOptions)); 271738c8a9a5SSteve French rc = -EINVAL; 271838c8a9a5SSteve French goto err_out1; 271938c8a9a5SSteve French } else { 272038c8a9a5SSteve French if (req->CreateOptions & FILE_SEQUENTIAL_ONLY_LE && 272138c8a9a5SSteve French req->CreateOptions & FILE_RANDOM_ACCESS_LE) 272238c8a9a5SSteve French req->CreateOptions = ~(FILE_SEQUENTIAL_ONLY_LE); 272338c8a9a5SSteve French 272438c8a9a5SSteve French if (req->CreateOptions & 272538c8a9a5SSteve French (FILE_OPEN_BY_FILE_ID_LE | CREATE_TREE_CONNECTION | 272638c8a9a5SSteve French FILE_RESERVE_OPFILTER_LE)) { 272738c8a9a5SSteve French rc = -EOPNOTSUPP; 272838c8a9a5SSteve French goto err_out1; 272938c8a9a5SSteve French } 273038c8a9a5SSteve French 273138c8a9a5SSteve French if (req->CreateOptions & FILE_DIRECTORY_FILE_LE) { 273238c8a9a5SSteve French if (req->CreateOptions & FILE_NON_DIRECTORY_FILE_LE) { 273338c8a9a5SSteve French rc = -EINVAL; 273438c8a9a5SSteve French goto err_out1; 273538c8a9a5SSteve French } else if (req->CreateOptions & FILE_NO_COMPRESSION_LE) { 273638c8a9a5SSteve French req->CreateOptions = ~(FILE_NO_COMPRESSION_LE); 273738c8a9a5SSteve French } 273838c8a9a5SSteve French } 273938c8a9a5SSteve French } 274038c8a9a5SSteve French 274138c8a9a5SSteve French if (le32_to_cpu(req->CreateDisposition) > 274238c8a9a5SSteve French le32_to_cpu(FILE_OVERWRITE_IF_LE)) { 274338c8a9a5SSteve French pr_err("Invalid create disposition : 0x%x\n", 274438c8a9a5SSteve French le32_to_cpu(req->CreateDisposition)); 274538c8a9a5SSteve French rc = -EINVAL; 274638c8a9a5SSteve French goto err_out1; 274738c8a9a5SSteve French } 274838c8a9a5SSteve French 274938c8a9a5SSteve French if (!(req->DesiredAccess & DESIRED_ACCESS_MASK)) { 275038c8a9a5SSteve French pr_err("Invalid desired access : 0x%x\n", 275138c8a9a5SSteve French le32_to_cpu(req->DesiredAccess)); 275238c8a9a5SSteve French rc = -EACCES; 275338c8a9a5SSteve French goto err_out1; 275438c8a9a5SSteve French } 275538c8a9a5SSteve French 275638c8a9a5SSteve French if (req->FileAttributes && !(req->FileAttributes & FILE_ATTRIBUTE_MASK_LE)) { 275738c8a9a5SSteve French pr_err("Invalid file attribute : 0x%x\n", 275838c8a9a5SSteve French le32_to_cpu(req->FileAttributes)); 275938c8a9a5SSteve French rc = -EINVAL; 276038c8a9a5SSteve French goto err_out1; 276138c8a9a5SSteve French } 276238c8a9a5SSteve French 276338c8a9a5SSteve French if (req->CreateContextsOffset) { 276438c8a9a5SSteve French /* Parse non-durable handle create contexts */ 276538c8a9a5SSteve French context = smb2_find_context_vals(req, SMB2_CREATE_EA_BUFFER, 4); 276638c8a9a5SSteve French if (IS_ERR(context)) { 276738c8a9a5SSteve French rc = PTR_ERR(context); 276838c8a9a5SSteve French goto err_out1; 276938c8a9a5SSteve French } else if (context) { 277038c8a9a5SSteve French ea_buf = (struct create_ea_buf_req *)context; 277138c8a9a5SSteve French if (le16_to_cpu(context->DataOffset) + 277238c8a9a5SSteve French le32_to_cpu(context->DataLength) < 277338c8a9a5SSteve French sizeof(struct create_ea_buf_req)) { 277438c8a9a5SSteve French rc = -EINVAL; 277538c8a9a5SSteve French goto err_out1; 277638c8a9a5SSteve French } 277738c8a9a5SSteve French if (req->CreateOptions & FILE_NO_EA_KNOWLEDGE_LE) { 277838c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 277938c8a9a5SSteve French rc = -EACCES; 278038c8a9a5SSteve French goto err_out1; 278138c8a9a5SSteve French } 278238c8a9a5SSteve French } 278338c8a9a5SSteve French 278438c8a9a5SSteve French context = smb2_find_context_vals(req, 278538c8a9a5SSteve French SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST, 4); 278638c8a9a5SSteve French if (IS_ERR(context)) { 278738c8a9a5SSteve French rc = PTR_ERR(context); 278838c8a9a5SSteve French goto err_out1; 278938c8a9a5SSteve French } else if (context) { 279038c8a9a5SSteve French ksmbd_debug(SMB, 279138c8a9a5SSteve French "get query maximal access context\n"); 279238c8a9a5SSteve French maximal_access_ctxt = 1; 279338c8a9a5SSteve French } 279438c8a9a5SSteve French 279538c8a9a5SSteve French context = smb2_find_context_vals(req, 279638c8a9a5SSteve French SMB2_CREATE_TIMEWARP_REQUEST, 4); 279738c8a9a5SSteve French if (IS_ERR(context)) { 279838c8a9a5SSteve French rc = PTR_ERR(context); 279938c8a9a5SSteve French goto err_out1; 280038c8a9a5SSteve French } else if (context) { 280138c8a9a5SSteve French ksmbd_debug(SMB, "get timewarp context\n"); 280238c8a9a5SSteve French rc = -EBADF; 280338c8a9a5SSteve French goto err_out1; 280438c8a9a5SSteve French } 280538c8a9a5SSteve French 280638c8a9a5SSteve French if (tcon->posix_extensions) { 280738c8a9a5SSteve French context = smb2_find_context_vals(req, 280838c8a9a5SSteve French SMB2_CREATE_TAG_POSIX, 16); 280938c8a9a5SSteve French if (IS_ERR(context)) { 281038c8a9a5SSteve French rc = PTR_ERR(context); 281138c8a9a5SSteve French goto err_out1; 281238c8a9a5SSteve French } else if (context) { 281338c8a9a5SSteve French struct create_posix *posix = 281438c8a9a5SSteve French (struct create_posix *)context; 281538c8a9a5SSteve French if (le16_to_cpu(context->DataOffset) + 281638c8a9a5SSteve French le32_to_cpu(context->DataLength) < 281738c8a9a5SSteve French sizeof(struct create_posix) - 4) { 281838c8a9a5SSteve French rc = -EINVAL; 281938c8a9a5SSteve French goto err_out1; 282038c8a9a5SSteve French } 282138c8a9a5SSteve French ksmbd_debug(SMB, "get posix context\n"); 282238c8a9a5SSteve French 282338c8a9a5SSteve French posix_mode = le32_to_cpu(posix->Mode); 282438c8a9a5SSteve French posix_ctxt = 1; 282538c8a9a5SSteve French } 282638c8a9a5SSteve French } 282738c8a9a5SSteve French } 282838c8a9a5SSteve French 282938c8a9a5SSteve French if (ksmbd_override_fsids(work)) { 283038c8a9a5SSteve French rc = -ENOMEM; 283138c8a9a5SSteve French goto err_out1; 283238c8a9a5SSteve French } 283338c8a9a5SSteve French 28342b57a432SNamjae Jeon rc = ksmbd_vfs_kern_path_locked(work, name, LOOKUP_NO_SYMLINKS, 28352b57a432SNamjae Jeon &parent_path, &path, 1); 283638c8a9a5SSteve French if (!rc) { 283738c8a9a5SSteve French file_present = true; 283838c8a9a5SSteve French 283938c8a9a5SSteve French if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE) { 284038c8a9a5SSteve French /* 284138c8a9a5SSteve French * If file exists with under flags, return access 284238c8a9a5SSteve French * denied error. 284338c8a9a5SSteve French */ 284438c8a9a5SSteve French if (req->CreateDisposition == FILE_OVERWRITE_IF_LE || 284538c8a9a5SSteve French req->CreateDisposition == FILE_OPEN_IF_LE) { 284638c8a9a5SSteve French rc = -EACCES; 284738c8a9a5SSteve French goto err_out; 284838c8a9a5SSteve French } 284938c8a9a5SSteve French 285038c8a9a5SSteve French if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 285138c8a9a5SSteve French ksmbd_debug(SMB, 285238c8a9a5SSteve French "User does not have write permission\n"); 285338c8a9a5SSteve French rc = -EACCES; 285438c8a9a5SSteve French goto err_out; 285538c8a9a5SSteve French } 285638c8a9a5SSteve French } else if (d_is_symlink(path.dentry)) { 285738c8a9a5SSteve French rc = -EACCES; 285838c8a9a5SSteve French goto err_out; 285938c8a9a5SSteve French } 286038c8a9a5SSteve French 286138c8a9a5SSteve French file_present = true; 286238c8a9a5SSteve French idmap = mnt_idmap(path.mnt); 286338c8a9a5SSteve French } else { 286438c8a9a5SSteve French if (rc != -ENOENT) 286538c8a9a5SSteve French goto err_out; 286638c8a9a5SSteve French ksmbd_debug(SMB, "can not get linux path for %s, rc = %d\n", 286738c8a9a5SSteve French name, rc); 286838c8a9a5SSteve French rc = 0; 286938c8a9a5SSteve French } 287038c8a9a5SSteve French 287138c8a9a5SSteve French if (stream_name) { 287238c8a9a5SSteve French if (req->CreateOptions & FILE_DIRECTORY_FILE_LE) { 287338c8a9a5SSteve French if (s_type == DATA_STREAM) { 287438c8a9a5SSteve French rc = -EIO; 287538c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_A_DIRECTORY; 287638c8a9a5SSteve French } 287738c8a9a5SSteve French } else { 287838c8a9a5SSteve French if (file_present && S_ISDIR(d_inode(path.dentry)->i_mode) && 287938c8a9a5SSteve French s_type == DATA_STREAM) { 288038c8a9a5SSteve French rc = -EIO; 288138c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY; 288238c8a9a5SSteve French } 288338c8a9a5SSteve French } 288438c8a9a5SSteve French 288538c8a9a5SSteve French if (req->CreateOptions & FILE_DIRECTORY_FILE_LE && 288638c8a9a5SSteve French req->FileAttributes & FILE_ATTRIBUTE_NORMAL_LE) { 288738c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_A_DIRECTORY; 288838c8a9a5SSteve French rc = -EIO; 288938c8a9a5SSteve French } 289038c8a9a5SSteve French 289138c8a9a5SSteve French if (rc < 0) 289238c8a9a5SSteve French goto err_out; 289338c8a9a5SSteve French } 289438c8a9a5SSteve French 289538c8a9a5SSteve French if (file_present && req->CreateOptions & FILE_NON_DIRECTORY_FILE_LE && 289638c8a9a5SSteve French S_ISDIR(d_inode(path.dentry)->i_mode) && 289738c8a9a5SSteve French !(req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) { 289838c8a9a5SSteve French ksmbd_debug(SMB, "open() argument is a directory: %s, %x\n", 289938c8a9a5SSteve French name, req->CreateOptions); 290038c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY; 290138c8a9a5SSteve French rc = -EIO; 290238c8a9a5SSteve French goto err_out; 290338c8a9a5SSteve French } 290438c8a9a5SSteve French 290538c8a9a5SSteve French if (file_present && (req->CreateOptions & FILE_DIRECTORY_FILE_LE) && 290638c8a9a5SSteve French !(req->CreateDisposition == FILE_CREATE_LE) && 290738c8a9a5SSteve French !S_ISDIR(d_inode(path.dentry)->i_mode)) { 290838c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_A_DIRECTORY; 290938c8a9a5SSteve French rc = -EIO; 291038c8a9a5SSteve French goto err_out; 291138c8a9a5SSteve French } 291238c8a9a5SSteve French 291338c8a9a5SSteve French if (!stream_name && file_present && 291438c8a9a5SSteve French req->CreateDisposition == FILE_CREATE_LE) { 291538c8a9a5SSteve French rc = -EEXIST; 291638c8a9a5SSteve French goto err_out; 291738c8a9a5SSteve French } 291838c8a9a5SSteve French 291938c8a9a5SSteve French daccess = smb_map_generic_desired_access(req->DesiredAccess); 292038c8a9a5SSteve French 292138c8a9a5SSteve French if (file_present && !(req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) { 292238c8a9a5SSteve French rc = smb_check_perm_dacl(conn, &path, &daccess, 292338c8a9a5SSteve French sess->user->uid); 292438c8a9a5SSteve French if (rc) 292538c8a9a5SSteve French goto err_out; 292638c8a9a5SSteve French } 292738c8a9a5SSteve French 292838c8a9a5SSteve French if (daccess & FILE_MAXIMAL_ACCESS_LE) { 292938c8a9a5SSteve French if (!file_present) { 293038c8a9a5SSteve French daccess = cpu_to_le32(GENERIC_ALL_FLAGS); 293138c8a9a5SSteve French } else { 2932ccb5889aSLu Hongfei ksmbd_vfs_query_maximal_access(idmap, 293338c8a9a5SSteve French path.dentry, 293438c8a9a5SSteve French &daccess); 293538c8a9a5SSteve French already_permitted = true; 293638c8a9a5SSteve French } 293738c8a9a5SSteve French maximal_access = daccess; 293838c8a9a5SSteve French } 293938c8a9a5SSteve French 294038c8a9a5SSteve French open_flags = smb2_create_open_flags(file_present, daccess, 294138c8a9a5SSteve French req->CreateDisposition, 294238c8a9a5SSteve French &may_flags); 294338c8a9a5SSteve French 294438c8a9a5SSteve French if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 294538c8a9a5SSteve French if (open_flags & O_CREAT) { 294638c8a9a5SSteve French ksmbd_debug(SMB, 294738c8a9a5SSteve French "User does not have write permission\n"); 294838c8a9a5SSteve French rc = -EACCES; 294938c8a9a5SSteve French goto err_out; 295038c8a9a5SSteve French } 295138c8a9a5SSteve French } 295238c8a9a5SSteve French 295338c8a9a5SSteve French /*create file if not present */ 295438c8a9a5SSteve French if (!file_present) { 29552b57a432SNamjae Jeon rc = smb2_creat(work, &parent_path, &path, name, open_flags, 29562b57a432SNamjae Jeon posix_mode, 295738c8a9a5SSteve French req->CreateOptions & FILE_DIRECTORY_FILE_LE); 295838c8a9a5SSteve French if (rc) { 295938c8a9a5SSteve French if (rc == -ENOENT) { 296038c8a9a5SSteve French rc = -EIO; 296138c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_PATH_NOT_FOUND; 296238c8a9a5SSteve French } 296338c8a9a5SSteve French goto err_out; 296438c8a9a5SSteve French } 296538c8a9a5SSteve French 296638c8a9a5SSteve French created = true; 296738c8a9a5SSteve French idmap = mnt_idmap(path.mnt); 296838c8a9a5SSteve French if (ea_buf) { 296938c8a9a5SSteve French if (le32_to_cpu(ea_buf->ccontext.DataLength) < 297038c8a9a5SSteve French sizeof(struct smb2_ea_info)) { 297138c8a9a5SSteve French rc = -EINVAL; 297238c8a9a5SSteve French goto err_out; 297338c8a9a5SSteve French } 297438c8a9a5SSteve French 297538c8a9a5SSteve French rc = smb2_set_ea(&ea_buf->ea, 297638c8a9a5SSteve French le32_to_cpu(ea_buf->ccontext.DataLength), 297738c8a9a5SSteve French &path); 297838c8a9a5SSteve French if (rc == -EOPNOTSUPP) 297938c8a9a5SSteve French rc = 0; 298038c8a9a5SSteve French else if (rc) 298138c8a9a5SSteve French goto err_out; 298238c8a9a5SSteve French } 298338c8a9a5SSteve French } else if (!already_permitted) { 298438c8a9a5SSteve French /* FILE_READ_ATTRIBUTE is allowed without inode_permission, 298538c8a9a5SSteve French * because execute(search) permission on a parent directory, 298638c8a9a5SSteve French * is already granted. 298738c8a9a5SSteve French */ 298838c8a9a5SSteve French if (daccess & ~(FILE_READ_ATTRIBUTES_LE | FILE_READ_CONTROL_LE)) { 298938c8a9a5SSteve French rc = inode_permission(idmap, 299038c8a9a5SSteve French d_inode(path.dentry), 299138c8a9a5SSteve French may_flags); 299238c8a9a5SSteve French if (rc) 299338c8a9a5SSteve French goto err_out; 299438c8a9a5SSteve French 299538c8a9a5SSteve French if ((daccess & FILE_DELETE_LE) || 299638c8a9a5SSteve French (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) { 299738c8a9a5SSteve French rc = inode_permission(idmap, 299838c8a9a5SSteve French d_inode(path.dentry->d_parent), 299938c8a9a5SSteve French MAY_EXEC | MAY_WRITE); 300038c8a9a5SSteve French if (rc) 300138c8a9a5SSteve French goto err_out; 300238c8a9a5SSteve French } 300338c8a9a5SSteve French } 300438c8a9a5SSteve French } 300538c8a9a5SSteve French 300638c8a9a5SSteve French rc = ksmbd_query_inode_status(d_inode(path.dentry->d_parent)); 300738c8a9a5SSteve French if (rc == KSMBD_INODE_STATUS_PENDING_DELETE) { 300838c8a9a5SSteve French rc = -EBUSY; 300938c8a9a5SSteve French goto err_out; 301038c8a9a5SSteve French } 301138c8a9a5SSteve French 301238c8a9a5SSteve French rc = 0; 301338c8a9a5SSteve French filp = dentry_open(&path, open_flags, current_cred()); 301438c8a9a5SSteve French if (IS_ERR(filp)) { 301538c8a9a5SSteve French rc = PTR_ERR(filp); 301638c8a9a5SSteve French pr_err("dentry open for dir failed, rc %d\n", rc); 301738c8a9a5SSteve French goto err_out; 301838c8a9a5SSteve French } 301938c8a9a5SSteve French 302038c8a9a5SSteve French if (file_present) { 302138c8a9a5SSteve French if (!(open_flags & O_TRUNC)) 302238c8a9a5SSteve French file_info = FILE_OPENED; 302338c8a9a5SSteve French else 302438c8a9a5SSteve French file_info = FILE_OVERWRITTEN; 302538c8a9a5SSteve French 302638c8a9a5SSteve French if ((req->CreateDisposition & FILE_CREATE_MASK_LE) == 302738c8a9a5SSteve French FILE_SUPERSEDE_LE) 302838c8a9a5SSteve French file_info = FILE_SUPERSEDED; 302938c8a9a5SSteve French } else if (open_flags & O_CREAT) { 303038c8a9a5SSteve French file_info = FILE_CREATED; 303138c8a9a5SSteve French } 303238c8a9a5SSteve French 303338c8a9a5SSteve French ksmbd_vfs_set_fadvise(filp, req->CreateOptions); 303438c8a9a5SSteve French 303538c8a9a5SSteve French /* Obtain Volatile-ID */ 303638c8a9a5SSteve French fp = ksmbd_open_fd(work, filp); 303738c8a9a5SSteve French if (IS_ERR(fp)) { 303838c8a9a5SSteve French fput(filp); 303938c8a9a5SSteve French rc = PTR_ERR(fp); 304038c8a9a5SSteve French fp = NULL; 304138c8a9a5SSteve French goto err_out; 304238c8a9a5SSteve French } 304338c8a9a5SSteve French 304438c8a9a5SSteve French /* Get Persistent-ID */ 304538c8a9a5SSteve French ksmbd_open_durable_fd(fp); 304638c8a9a5SSteve French if (!has_file_id(fp->persistent_id)) { 304738c8a9a5SSteve French rc = -ENOMEM; 304838c8a9a5SSteve French goto err_out; 304938c8a9a5SSteve French } 305038c8a9a5SSteve French 305138c8a9a5SSteve French fp->cdoption = req->CreateDisposition; 305238c8a9a5SSteve French fp->daccess = daccess; 305338c8a9a5SSteve French fp->saccess = req->ShareAccess; 305438c8a9a5SSteve French fp->coption = req->CreateOptions; 305538c8a9a5SSteve French 305638c8a9a5SSteve French /* Set default windows and posix acls if creating new file */ 305738c8a9a5SSteve French if (created) { 305838c8a9a5SSteve French int posix_acl_rc; 305938c8a9a5SSteve French struct inode *inode = d_inode(path.dentry); 306038c8a9a5SSteve French 306138c8a9a5SSteve French posix_acl_rc = ksmbd_vfs_inherit_posix_acl(idmap, 306240b268d3SNamjae Jeon &path, 306338c8a9a5SSteve French d_inode(path.dentry->d_parent)); 306438c8a9a5SSteve French if (posix_acl_rc) 306538c8a9a5SSteve French ksmbd_debug(SMB, "inherit posix acl failed : %d\n", posix_acl_rc); 306638c8a9a5SSteve French 306738c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 306838c8a9a5SSteve French KSMBD_SHARE_FLAG_ACL_XATTR)) { 306938c8a9a5SSteve French rc = smb_inherit_dacl(conn, &path, sess->user->uid, 307038c8a9a5SSteve French sess->user->gid); 307138c8a9a5SSteve French } 307238c8a9a5SSteve French 307338c8a9a5SSteve French if (rc) { 307438c8a9a5SSteve French rc = smb2_create_sd_buffer(work, req, &path); 307538c8a9a5SSteve French if (rc) { 307638c8a9a5SSteve French if (posix_acl_rc) 307738c8a9a5SSteve French ksmbd_vfs_set_init_posix_acl(idmap, 307840b268d3SNamjae Jeon &path); 307938c8a9a5SSteve French 308038c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 308138c8a9a5SSteve French KSMBD_SHARE_FLAG_ACL_XATTR)) { 308238c8a9a5SSteve French struct smb_fattr fattr; 308338c8a9a5SSteve French struct smb_ntsd *pntsd; 308438c8a9a5SSteve French int pntsd_size, ace_num = 0; 308538c8a9a5SSteve French 308638c8a9a5SSteve French ksmbd_acls_fattr(&fattr, idmap, inode); 308738c8a9a5SSteve French if (fattr.cf_acls) 308838c8a9a5SSteve French ace_num = fattr.cf_acls->a_count; 308938c8a9a5SSteve French if (fattr.cf_dacls) 309038c8a9a5SSteve French ace_num += fattr.cf_dacls->a_count; 309138c8a9a5SSteve French 309238c8a9a5SSteve French pntsd = kmalloc(sizeof(struct smb_ntsd) + 309338c8a9a5SSteve French sizeof(struct smb_sid) * 3 + 309438c8a9a5SSteve French sizeof(struct smb_acl) + 309538c8a9a5SSteve French sizeof(struct smb_ace) * ace_num * 2, 309638c8a9a5SSteve French GFP_KERNEL); 309738c8a9a5SSteve French if (!pntsd) { 309838c8a9a5SSteve French posix_acl_release(fattr.cf_acls); 309938c8a9a5SSteve French posix_acl_release(fattr.cf_dacls); 310038c8a9a5SSteve French goto err_out; 310138c8a9a5SSteve French } 310238c8a9a5SSteve French 310338c8a9a5SSteve French rc = build_sec_desc(idmap, 310438c8a9a5SSteve French pntsd, NULL, 0, 310538c8a9a5SSteve French OWNER_SECINFO | 310638c8a9a5SSteve French GROUP_SECINFO | 310738c8a9a5SSteve French DACL_SECINFO, 310838c8a9a5SSteve French &pntsd_size, &fattr); 310938c8a9a5SSteve French posix_acl_release(fattr.cf_acls); 311038c8a9a5SSteve French posix_acl_release(fattr.cf_dacls); 311138c8a9a5SSteve French if (rc) { 311238c8a9a5SSteve French kfree(pntsd); 311338c8a9a5SSteve French goto err_out; 311438c8a9a5SSteve French } 311538c8a9a5SSteve French 311638c8a9a5SSteve French rc = ksmbd_vfs_set_sd_xattr(conn, 311738c8a9a5SSteve French idmap, 311840b268d3SNamjae Jeon &path, 311938c8a9a5SSteve French pntsd, 312038c8a9a5SSteve French pntsd_size); 312138c8a9a5SSteve French kfree(pntsd); 312238c8a9a5SSteve French if (rc) 312338c8a9a5SSteve French pr_err("failed to store ntacl in xattr : %d\n", 312438c8a9a5SSteve French rc); 312538c8a9a5SSteve French } 312638c8a9a5SSteve French } 312738c8a9a5SSteve French } 312838c8a9a5SSteve French rc = 0; 312938c8a9a5SSteve French } 313038c8a9a5SSteve French 313138c8a9a5SSteve French if (stream_name) { 313238c8a9a5SSteve French rc = smb2_set_stream_name_xattr(&path, 313338c8a9a5SSteve French fp, 313438c8a9a5SSteve French stream_name, 313538c8a9a5SSteve French s_type); 313638c8a9a5SSteve French if (rc) 313738c8a9a5SSteve French goto err_out; 313838c8a9a5SSteve French file_info = FILE_CREATED; 313938c8a9a5SSteve French } 314038c8a9a5SSteve French 314138c8a9a5SSteve French fp->attrib_only = !(req->DesiredAccess & ~(FILE_READ_ATTRIBUTES_LE | 314238c8a9a5SSteve French FILE_WRITE_ATTRIBUTES_LE | FILE_SYNCHRONIZE_LE)); 314338c8a9a5SSteve French if (!S_ISDIR(file_inode(filp)->i_mode) && open_flags & O_TRUNC && 314438c8a9a5SSteve French !fp->attrib_only && !stream_name) { 314538c8a9a5SSteve French smb_break_all_oplock(work, fp); 314638c8a9a5SSteve French need_truncate = 1; 314738c8a9a5SSteve French } 314838c8a9a5SSteve French 314938c8a9a5SSteve French /* fp should be searchable through ksmbd_inode.m_fp_list 315038c8a9a5SSteve French * after daccess, saccess, attrib_only, and stream are 315138c8a9a5SSteve French * initialized. 315238c8a9a5SSteve French */ 315338c8a9a5SSteve French write_lock(&fp->f_ci->m_lock); 315438c8a9a5SSteve French list_add(&fp->node, &fp->f_ci->m_fp_list); 315538c8a9a5SSteve French write_unlock(&fp->f_ci->m_lock); 315638c8a9a5SSteve French 315738c8a9a5SSteve French /* Check delete pending among previous fp before oplock break */ 315838c8a9a5SSteve French if (ksmbd_inode_pending_delete(fp)) { 315938c8a9a5SSteve French rc = -EBUSY; 316038c8a9a5SSteve French goto err_out; 316138c8a9a5SSteve French } 316238c8a9a5SSteve French 316338c8a9a5SSteve French share_ret = ksmbd_smb_check_shared_mode(fp->filp, fp); 316438c8a9a5SSteve French if (!test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_OPLOCKS) || 316538c8a9a5SSteve French (req_op_level == SMB2_OPLOCK_LEVEL_LEASE && 316638c8a9a5SSteve French !(conn->vals->capabilities & SMB2_GLOBAL_CAP_LEASING))) { 316738c8a9a5SSteve French if (share_ret < 0 && !S_ISDIR(file_inode(fp->filp)->i_mode)) { 316838c8a9a5SSteve French rc = share_ret; 316938c8a9a5SSteve French goto err_out; 317038c8a9a5SSteve French } 317138c8a9a5SSteve French } else { 317238c8a9a5SSteve French if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) { 317338c8a9a5SSteve French req_op_level = smb2_map_lease_to_oplock(lc->req_state); 317438c8a9a5SSteve French ksmbd_debug(SMB, 317538c8a9a5SSteve French "lease req for(%s) req oplock state 0x%x, lease state 0x%x\n", 317638c8a9a5SSteve French name, req_op_level, lc->req_state); 317738c8a9a5SSteve French rc = find_same_lease_key(sess, fp->f_ci, lc); 317838c8a9a5SSteve French if (rc) 317938c8a9a5SSteve French goto err_out; 318038c8a9a5SSteve French } else if (open_flags == O_RDONLY && 318138c8a9a5SSteve French (req_op_level == SMB2_OPLOCK_LEVEL_BATCH || 318238c8a9a5SSteve French req_op_level == SMB2_OPLOCK_LEVEL_EXCLUSIVE)) 318338c8a9a5SSteve French req_op_level = SMB2_OPLOCK_LEVEL_II; 318438c8a9a5SSteve French 318538c8a9a5SSteve French rc = smb_grant_oplock(work, req_op_level, 318638c8a9a5SSteve French fp->persistent_id, fp, 318738c8a9a5SSteve French le32_to_cpu(req->hdr.Id.SyncId.TreeId), 318838c8a9a5SSteve French lc, share_ret); 318938c8a9a5SSteve French if (rc < 0) 319038c8a9a5SSteve French goto err_out; 319138c8a9a5SSteve French } 319238c8a9a5SSteve French 319338c8a9a5SSteve French if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE) 319438c8a9a5SSteve French ksmbd_fd_set_delete_on_close(fp, file_info); 319538c8a9a5SSteve French 319638c8a9a5SSteve French if (need_truncate) { 319738c8a9a5SSteve French rc = smb2_create_truncate(&path); 319838c8a9a5SSteve French if (rc) 319938c8a9a5SSteve French goto err_out; 320038c8a9a5SSteve French } 320138c8a9a5SSteve French 320238c8a9a5SSteve French if (req->CreateContextsOffset) { 320338c8a9a5SSteve French struct create_alloc_size_req *az_req; 320438c8a9a5SSteve French 320538c8a9a5SSteve French az_req = (struct create_alloc_size_req *)smb2_find_context_vals(req, 320638c8a9a5SSteve French SMB2_CREATE_ALLOCATION_SIZE, 4); 320738c8a9a5SSteve French if (IS_ERR(az_req)) { 320838c8a9a5SSteve French rc = PTR_ERR(az_req); 320938c8a9a5SSteve French goto err_out; 321038c8a9a5SSteve French } else if (az_req) { 321138c8a9a5SSteve French loff_t alloc_size; 321238c8a9a5SSteve French int err; 321338c8a9a5SSteve French 321438c8a9a5SSteve French if (le16_to_cpu(az_req->ccontext.DataOffset) + 321538c8a9a5SSteve French le32_to_cpu(az_req->ccontext.DataLength) < 321638c8a9a5SSteve French sizeof(struct create_alloc_size_req)) { 321738c8a9a5SSteve French rc = -EINVAL; 321838c8a9a5SSteve French goto err_out; 321938c8a9a5SSteve French } 322038c8a9a5SSteve French alloc_size = le64_to_cpu(az_req->AllocationSize); 322138c8a9a5SSteve French ksmbd_debug(SMB, 322238c8a9a5SSteve French "request smb2 create allocate size : %llu\n", 322338c8a9a5SSteve French alloc_size); 322438c8a9a5SSteve French smb_break_all_levII_oplock(work, fp, 1); 322538c8a9a5SSteve French err = vfs_fallocate(fp->filp, FALLOC_FL_KEEP_SIZE, 0, 322638c8a9a5SSteve French alloc_size); 322738c8a9a5SSteve French if (err < 0) 322838c8a9a5SSteve French ksmbd_debug(SMB, 322938c8a9a5SSteve French "vfs_fallocate is failed : %d\n", 323038c8a9a5SSteve French err); 323138c8a9a5SSteve French } 323238c8a9a5SSteve French 323338c8a9a5SSteve French context = smb2_find_context_vals(req, SMB2_CREATE_QUERY_ON_DISK_ID, 4); 323438c8a9a5SSteve French if (IS_ERR(context)) { 323538c8a9a5SSteve French rc = PTR_ERR(context); 323638c8a9a5SSteve French goto err_out; 323738c8a9a5SSteve French } else if (context) { 323838c8a9a5SSteve French ksmbd_debug(SMB, "get query on disk id context\n"); 323938c8a9a5SSteve French query_disk_id = 1; 324038c8a9a5SSteve French } 324138c8a9a5SSteve French } 324238c8a9a5SSteve French 324338c8a9a5SSteve French rc = ksmbd_vfs_getattr(&path, &stat); 324438c8a9a5SSteve French if (rc) 324538c8a9a5SSteve French goto err_out; 324638c8a9a5SSteve French 324738c8a9a5SSteve French if (stat.result_mask & STATX_BTIME) 324838c8a9a5SSteve French fp->create_time = ksmbd_UnixTimeToNT(stat.btime); 324938c8a9a5SSteve French else 325038c8a9a5SSteve French fp->create_time = ksmbd_UnixTimeToNT(stat.ctime); 325138c8a9a5SSteve French if (req->FileAttributes || fp->f_ci->m_fattr == 0) 325238c8a9a5SSteve French fp->f_ci->m_fattr = 325338c8a9a5SSteve French cpu_to_le32(smb2_get_dos_mode(&stat, le32_to_cpu(req->FileAttributes))); 325438c8a9a5SSteve French 325538c8a9a5SSteve French if (!created) 325638c8a9a5SSteve French smb2_update_xattrs(tcon, &path, fp); 325738c8a9a5SSteve French else 325838c8a9a5SSteve French smb2_new_xattrs(tcon, &path, fp); 325938c8a9a5SSteve French 326038c8a9a5SSteve French memcpy(fp->client_guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE); 326138c8a9a5SSteve French 326238c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(89); 326338c8a9a5SSteve French rcu_read_lock(); 326438c8a9a5SSteve French opinfo = rcu_dereference(fp->f_opinfo); 326538c8a9a5SSteve French rsp->OplockLevel = opinfo != NULL ? opinfo->level : 0; 326638c8a9a5SSteve French rcu_read_unlock(); 326738c8a9a5SSteve French rsp->Flags = 0; 326838c8a9a5SSteve French rsp->CreateAction = cpu_to_le32(file_info); 326938c8a9a5SSteve French rsp->CreationTime = cpu_to_le64(fp->create_time); 327038c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.atime); 327138c8a9a5SSteve French rsp->LastAccessTime = cpu_to_le64(time); 327238c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.mtime); 327338c8a9a5SSteve French rsp->LastWriteTime = cpu_to_le64(time); 327438c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.ctime); 327538c8a9a5SSteve French rsp->ChangeTime = cpu_to_le64(time); 327638c8a9a5SSteve French rsp->AllocationSize = S_ISDIR(stat.mode) ? 0 : 327738c8a9a5SSteve French cpu_to_le64(stat.blocks << 9); 327838c8a9a5SSteve French rsp->EndofFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); 327938c8a9a5SSteve French rsp->FileAttributes = fp->f_ci->m_fattr; 328038c8a9a5SSteve French 328138c8a9a5SSteve French rsp->Reserved2 = 0; 328238c8a9a5SSteve French 328338c8a9a5SSteve French rsp->PersistentFileId = fp->persistent_id; 328438c8a9a5SSteve French rsp->VolatileFileId = fp->volatile_id; 328538c8a9a5SSteve French 328638c8a9a5SSteve French rsp->CreateContextsOffset = 0; 328738c8a9a5SSteve French rsp->CreateContextsLength = 0; 3288e2b76ab8SNamjae Jeon iov_len = offsetof(struct smb2_create_rsp, Buffer); 328938c8a9a5SSteve French 329038c8a9a5SSteve French /* If lease is request send lease context response */ 329138c8a9a5SSteve French if (opinfo && opinfo->is_lease) { 329238c8a9a5SSteve French struct create_context *lease_ccontext; 329338c8a9a5SSteve French 329438c8a9a5SSteve French ksmbd_debug(SMB, "lease granted on(%s) lease state 0x%x\n", 329538c8a9a5SSteve French name, opinfo->o_lease->state); 329638c8a9a5SSteve French rsp->OplockLevel = SMB2_OPLOCK_LEVEL_LEASE; 329738c8a9a5SSteve French 329838c8a9a5SSteve French lease_ccontext = (struct create_context *)rsp->Buffer; 329938c8a9a5SSteve French contxt_cnt++; 330038c8a9a5SSteve French create_lease_buf(rsp->Buffer, opinfo->o_lease); 330138c8a9a5SSteve French le32_add_cpu(&rsp->CreateContextsLength, 330238c8a9a5SSteve French conn->vals->create_lease_size); 3303e2b76ab8SNamjae Jeon iov_len += conn->vals->create_lease_size; 330438c8a9a5SSteve French next_ptr = &lease_ccontext->Next; 330538c8a9a5SSteve French next_off = conn->vals->create_lease_size; 330638c8a9a5SSteve French } 330738c8a9a5SSteve French 330838c8a9a5SSteve French if (maximal_access_ctxt) { 330938c8a9a5SSteve French struct create_context *mxac_ccontext; 331038c8a9a5SSteve French 331138c8a9a5SSteve French if (maximal_access == 0) 331238c8a9a5SSteve French ksmbd_vfs_query_maximal_access(idmap, 331338c8a9a5SSteve French path.dentry, 331438c8a9a5SSteve French &maximal_access); 331538c8a9a5SSteve French mxac_ccontext = (struct create_context *)(rsp->Buffer + 331638c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength)); 331738c8a9a5SSteve French contxt_cnt++; 331838c8a9a5SSteve French create_mxac_rsp_buf(rsp->Buffer + 331938c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength), 332038c8a9a5SSteve French le32_to_cpu(maximal_access)); 332138c8a9a5SSteve French le32_add_cpu(&rsp->CreateContextsLength, 332238c8a9a5SSteve French conn->vals->create_mxac_size); 3323e2b76ab8SNamjae Jeon iov_len += conn->vals->create_mxac_size; 332438c8a9a5SSteve French if (next_ptr) 332538c8a9a5SSteve French *next_ptr = cpu_to_le32(next_off); 332638c8a9a5SSteve French next_ptr = &mxac_ccontext->Next; 332738c8a9a5SSteve French next_off = conn->vals->create_mxac_size; 332838c8a9a5SSteve French } 332938c8a9a5SSteve French 333038c8a9a5SSteve French if (query_disk_id) { 333138c8a9a5SSteve French struct create_context *disk_id_ccontext; 333238c8a9a5SSteve French 333338c8a9a5SSteve French disk_id_ccontext = (struct create_context *)(rsp->Buffer + 333438c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength)); 333538c8a9a5SSteve French contxt_cnt++; 333638c8a9a5SSteve French create_disk_id_rsp_buf(rsp->Buffer + 333738c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength), 333838c8a9a5SSteve French stat.ino, tcon->id); 333938c8a9a5SSteve French le32_add_cpu(&rsp->CreateContextsLength, 334038c8a9a5SSteve French conn->vals->create_disk_id_size); 3341e2b76ab8SNamjae Jeon iov_len += conn->vals->create_disk_id_size; 334238c8a9a5SSteve French if (next_ptr) 334338c8a9a5SSteve French *next_ptr = cpu_to_le32(next_off); 334438c8a9a5SSteve French next_ptr = &disk_id_ccontext->Next; 334538c8a9a5SSteve French next_off = conn->vals->create_disk_id_size; 334638c8a9a5SSteve French } 334738c8a9a5SSteve French 334838c8a9a5SSteve French if (posix_ctxt) { 334938c8a9a5SSteve French contxt_cnt++; 335038c8a9a5SSteve French create_posix_rsp_buf(rsp->Buffer + 335138c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength), 335238c8a9a5SSteve French fp); 335338c8a9a5SSteve French le32_add_cpu(&rsp->CreateContextsLength, 335438c8a9a5SSteve French conn->vals->create_posix_size); 3355e2b76ab8SNamjae Jeon iov_len += conn->vals->create_posix_size; 335638c8a9a5SSteve French if (next_ptr) 335738c8a9a5SSteve French *next_ptr = cpu_to_le32(next_off); 335838c8a9a5SSteve French } 335938c8a9a5SSteve French 336038c8a9a5SSteve French if (contxt_cnt > 0) { 336138c8a9a5SSteve French rsp->CreateContextsOffset = 336238c8a9a5SSteve French cpu_to_le32(offsetof(struct smb2_create_rsp, Buffer)); 336338c8a9a5SSteve French } 336438c8a9a5SSteve French 336538c8a9a5SSteve French err_out: 336638c8a9a5SSteve French if (file_present || created) { 33672b57a432SNamjae Jeon inode_unlock(d_inode(parent_path.dentry)); 33682b57a432SNamjae Jeon path_put(&path); 33692b57a432SNamjae Jeon path_put(&parent_path); 337038c8a9a5SSteve French } 337138c8a9a5SSteve French ksmbd_revert_fsids(work); 337238c8a9a5SSteve French err_out1: 3373e2b76ab8SNamjae Jeon if (!rc) 3374e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, iov_len); 337538c8a9a5SSteve French if (rc) { 337638c8a9a5SSteve French if (rc == -EINVAL) 337738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 337838c8a9a5SSteve French else if (rc == -EOPNOTSUPP) 337938c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_SUPPORTED; 338038c8a9a5SSteve French else if (rc == -EACCES || rc == -ESTALE || rc == -EXDEV) 338138c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 338238c8a9a5SSteve French else if (rc == -ENOENT) 338338c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_INVALID; 338438c8a9a5SSteve French else if (rc == -EPERM) 338538c8a9a5SSteve French rsp->hdr.Status = STATUS_SHARING_VIOLATION; 338638c8a9a5SSteve French else if (rc == -EBUSY) 338738c8a9a5SSteve French rsp->hdr.Status = STATUS_DELETE_PENDING; 338838c8a9a5SSteve French else if (rc == -EBADF) 338938c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND; 339038c8a9a5SSteve French else if (rc == -ENOEXEC) 339138c8a9a5SSteve French rsp->hdr.Status = STATUS_DUPLICATE_OBJECTID; 339238c8a9a5SSteve French else if (rc == -ENXIO) 339338c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_SUCH_DEVICE; 339438c8a9a5SSteve French else if (rc == -EEXIST) 339538c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_COLLISION; 339638c8a9a5SSteve French else if (rc == -EMFILE) 339738c8a9a5SSteve French rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 339838c8a9a5SSteve French if (!rsp->hdr.Status) 339938c8a9a5SSteve French rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; 340038c8a9a5SSteve French 340138c8a9a5SSteve French if (fp) 340238c8a9a5SSteve French ksmbd_fd_put(work, fp); 340338c8a9a5SSteve French smb2_set_err_rsp(work); 340438c8a9a5SSteve French ksmbd_debug(SMB, "Error response: %x\n", rsp->hdr.Status); 340538c8a9a5SSteve French } 340638c8a9a5SSteve French 340738c8a9a5SSteve French kfree(name); 340838c8a9a5SSteve French kfree(lc); 340938c8a9a5SSteve French 341038c8a9a5SSteve French return 0; 341138c8a9a5SSteve French } 341238c8a9a5SSteve French 341338c8a9a5SSteve French static int readdir_info_level_struct_sz(int info_level) 341438c8a9a5SSteve French { 341538c8a9a5SSteve French switch (info_level) { 341638c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 341738c8a9a5SSteve French return sizeof(struct file_full_directory_info); 341838c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 341938c8a9a5SSteve French return sizeof(struct file_both_directory_info); 342038c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 342138c8a9a5SSteve French return sizeof(struct file_directory_info); 342238c8a9a5SSteve French case FILE_NAMES_INFORMATION: 342338c8a9a5SSteve French return sizeof(struct file_names_info); 342438c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 342538c8a9a5SSteve French return sizeof(struct file_id_full_dir_info); 342638c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 342738c8a9a5SSteve French return sizeof(struct file_id_both_directory_info); 342838c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 342938c8a9a5SSteve French return sizeof(struct smb2_posix_info); 343038c8a9a5SSteve French default: 343138c8a9a5SSteve French return -EOPNOTSUPP; 343238c8a9a5SSteve French } 343338c8a9a5SSteve French } 343438c8a9a5SSteve French 343538c8a9a5SSteve French static int dentry_name(struct ksmbd_dir_info *d_info, int info_level) 343638c8a9a5SSteve French { 343738c8a9a5SSteve French switch (info_level) { 343838c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 343938c8a9a5SSteve French { 344038c8a9a5SSteve French struct file_full_directory_info *ffdinfo; 344138c8a9a5SSteve French 344238c8a9a5SSteve French ffdinfo = (struct file_full_directory_info *)d_info->rptr; 344338c8a9a5SSteve French d_info->rptr += le32_to_cpu(ffdinfo->NextEntryOffset); 344438c8a9a5SSteve French d_info->name = ffdinfo->FileName; 344538c8a9a5SSteve French d_info->name_len = le32_to_cpu(ffdinfo->FileNameLength); 344638c8a9a5SSteve French return 0; 344738c8a9a5SSteve French } 344838c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 344938c8a9a5SSteve French { 345038c8a9a5SSteve French struct file_both_directory_info *fbdinfo; 345138c8a9a5SSteve French 345238c8a9a5SSteve French fbdinfo = (struct file_both_directory_info *)d_info->rptr; 345338c8a9a5SSteve French d_info->rptr += le32_to_cpu(fbdinfo->NextEntryOffset); 345438c8a9a5SSteve French d_info->name = fbdinfo->FileName; 345538c8a9a5SSteve French d_info->name_len = le32_to_cpu(fbdinfo->FileNameLength); 345638c8a9a5SSteve French return 0; 345738c8a9a5SSteve French } 345838c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 345938c8a9a5SSteve French { 346038c8a9a5SSteve French struct file_directory_info *fdinfo; 346138c8a9a5SSteve French 346238c8a9a5SSteve French fdinfo = (struct file_directory_info *)d_info->rptr; 346338c8a9a5SSteve French d_info->rptr += le32_to_cpu(fdinfo->NextEntryOffset); 346438c8a9a5SSteve French d_info->name = fdinfo->FileName; 346538c8a9a5SSteve French d_info->name_len = le32_to_cpu(fdinfo->FileNameLength); 346638c8a9a5SSteve French return 0; 346738c8a9a5SSteve French } 346838c8a9a5SSteve French case FILE_NAMES_INFORMATION: 346938c8a9a5SSteve French { 347038c8a9a5SSteve French struct file_names_info *fninfo; 347138c8a9a5SSteve French 347238c8a9a5SSteve French fninfo = (struct file_names_info *)d_info->rptr; 347338c8a9a5SSteve French d_info->rptr += le32_to_cpu(fninfo->NextEntryOffset); 347438c8a9a5SSteve French d_info->name = fninfo->FileName; 347538c8a9a5SSteve French d_info->name_len = le32_to_cpu(fninfo->FileNameLength); 347638c8a9a5SSteve French return 0; 347738c8a9a5SSteve French } 347838c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 347938c8a9a5SSteve French { 348038c8a9a5SSteve French struct file_id_full_dir_info *dinfo; 348138c8a9a5SSteve French 348238c8a9a5SSteve French dinfo = (struct file_id_full_dir_info *)d_info->rptr; 348338c8a9a5SSteve French d_info->rptr += le32_to_cpu(dinfo->NextEntryOffset); 348438c8a9a5SSteve French d_info->name = dinfo->FileName; 348538c8a9a5SSteve French d_info->name_len = le32_to_cpu(dinfo->FileNameLength); 348638c8a9a5SSteve French return 0; 348738c8a9a5SSteve French } 348838c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 348938c8a9a5SSteve French { 349038c8a9a5SSteve French struct file_id_both_directory_info *fibdinfo; 349138c8a9a5SSteve French 349238c8a9a5SSteve French fibdinfo = (struct file_id_both_directory_info *)d_info->rptr; 349338c8a9a5SSteve French d_info->rptr += le32_to_cpu(fibdinfo->NextEntryOffset); 349438c8a9a5SSteve French d_info->name = fibdinfo->FileName; 349538c8a9a5SSteve French d_info->name_len = le32_to_cpu(fibdinfo->FileNameLength); 349638c8a9a5SSteve French return 0; 349738c8a9a5SSteve French } 349838c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 349938c8a9a5SSteve French { 350038c8a9a5SSteve French struct smb2_posix_info *posix_info; 350138c8a9a5SSteve French 350238c8a9a5SSteve French posix_info = (struct smb2_posix_info *)d_info->rptr; 350338c8a9a5SSteve French d_info->rptr += le32_to_cpu(posix_info->NextEntryOffset); 350438c8a9a5SSteve French d_info->name = posix_info->name; 350538c8a9a5SSteve French d_info->name_len = le32_to_cpu(posix_info->name_len); 350638c8a9a5SSteve French return 0; 350738c8a9a5SSteve French } 350838c8a9a5SSteve French default: 350938c8a9a5SSteve French return -EINVAL; 351038c8a9a5SSteve French } 351138c8a9a5SSteve French } 351238c8a9a5SSteve French 351338c8a9a5SSteve French /** 351438c8a9a5SSteve French * smb2_populate_readdir_entry() - encode directory entry in smb2 response 351538c8a9a5SSteve French * buffer 351638c8a9a5SSteve French * @conn: connection instance 351738c8a9a5SSteve French * @info_level: smb information level 351838c8a9a5SSteve French * @d_info: structure included variables for query dir 351938c8a9a5SSteve French * @ksmbd_kstat: ksmbd wrapper of dirent stat information 352038c8a9a5SSteve French * 352138c8a9a5SSteve French * if directory has many entries, find first can't read it fully. 352238c8a9a5SSteve French * find next might be called multiple times to read remaining dir entries 352338c8a9a5SSteve French * 352438c8a9a5SSteve French * Return: 0 on success, otherwise error 352538c8a9a5SSteve French */ 352638c8a9a5SSteve French static int smb2_populate_readdir_entry(struct ksmbd_conn *conn, int info_level, 352738c8a9a5SSteve French struct ksmbd_dir_info *d_info, 352838c8a9a5SSteve French struct ksmbd_kstat *ksmbd_kstat) 352938c8a9a5SSteve French { 353038c8a9a5SSteve French int next_entry_offset = 0; 353138c8a9a5SSteve French char *conv_name; 353238c8a9a5SSteve French int conv_len; 353338c8a9a5SSteve French void *kstat; 353438c8a9a5SSteve French int struct_sz, rc = 0; 353538c8a9a5SSteve French 353638c8a9a5SSteve French conv_name = ksmbd_convert_dir_info_name(d_info, 353738c8a9a5SSteve French conn->local_nls, 353838c8a9a5SSteve French &conv_len); 353938c8a9a5SSteve French if (!conv_name) 354038c8a9a5SSteve French return -ENOMEM; 354138c8a9a5SSteve French 354238c8a9a5SSteve French /* Somehow the name has only terminating NULL bytes */ 354338c8a9a5SSteve French if (conv_len < 0) { 354438c8a9a5SSteve French rc = -EINVAL; 354538c8a9a5SSteve French goto free_conv_name; 354638c8a9a5SSteve French } 354738c8a9a5SSteve French 354838c8a9a5SSteve French struct_sz = readdir_info_level_struct_sz(info_level) + conv_len; 354938c8a9a5SSteve French next_entry_offset = ALIGN(struct_sz, KSMBD_DIR_INFO_ALIGNMENT); 355038c8a9a5SSteve French d_info->last_entry_off_align = next_entry_offset - struct_sz; 355138c8a9a5SSteve French 355238c8a9a5SSteve French if (next_entry_offset > d_info->out_buf_len) { 355338c8a9a5SSteve French d_info->out_buf_len = 0; 355438c8a9a5SSteve French rc = -ENOSPC; 355538c8a9a5SSteve French goto free_conv_name; 355638c8a9a5SSteve French } 355738c8a9a5SSteve French 355838c8a9a5SSteve French kstat = d_info->wptr; 355938c8a9a5SSteve French if (info_level != FILE_NAMES_INFORMATION) 356038c8a9a5SSteve French kstat = ksmbd_vfs_init_kstat(&d_info->wptr, ksmbd_kstat); 356138c8a9a5SSteve French 356238c8a9a5SSteve French switch (info_level) { 356338c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 356438c8a9a5SSteve French { 356538c8a9a5SSteve French struct file_full_directory_info *ffdinfo; 356638c8a9a5SSteve French 356738c8a9a5SSteve French ffdinfo = (struct file_full_directory_info *)kstat; 356838c8a9a5SSteve French ffdinfo->FileNameLength = cpu_to_le32(conv_len); 356938c8a9a5SSteve French ffdinfo->EaSize = 357038c8a9a5SSteve French smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); 357138c8a9a5SSteve French if (ffdinfo->EaSize) 357238c8a9a5SSteve French ffdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; 357338c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 357438c8a9a5SSteve French ffdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 357538c8a9a5SSteve French memcpy(ffdinfo->FileName, conv_name, conv_len); 357638c8a9a5SSteve French ffdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 357738c8a9a5SSteve French break; 357838c8a9a5SSteve French } 357938c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 358038c8a9a5SSteve French { 358138c8a9a5SSteve French struct file_both_directory_info *fbdinfo; 358238c8a9a5SSteve French 358338c8a9a5SSteve French fbdinfo = (struct file_both_directory_info *)kstat; 358438c8a9a5SSteve French fbdinfo->FileNameLength = cpu_to_le32(conv_len); 358538c8a9a5SSteve French fbdinfo->EaSize = 358638c8a9a5SSteve French smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); 358738c8a9a5SSteve French if (fbdinfo->EaSize) 358838c8a9a5SSteve French fbdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; 358938c8a9a5SSteve French fbdinfo->ShortNameLength = 0; 359038c8a9a5SSteve French fbdinfo->Reserved = 0; 359138c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 359238c8a9a5SSteve French fbdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 359338c8a9a5SSteve French memcpy(fbdinfo->FileName, conv_name, conv_len); 359438c8a9a5SSteve French fbdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 359538c8a9a5SSteve French break; 359638c8a9a5SSteve French } 359738c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 359838c8a9a5SSteve French { 359938c8a9a5SSteve French struct file_directory_info *fdinfo; 360038c8a9a5SSteve French 360138c8a9a5SSteve French fdinfo = (struct file_directory_info *)kstat; 360238c8a9a5SSteve French fdinfo->FileNameLength = cpu_to_le32(conv_len); 360338c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 360438c8a9a5SSteve French fdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 360538c8a9a5SSteve French memcpy(fdinfo->FileName, conv_name, conv_len); 360638c8a9a5SSteve French fdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 360738c8a9a5SSteve French break; 360838c8a9a5SSteve French } 360938c8a9a5SSteve French case FILE_NAMES_INFORMATION: 361038c8a9a5SSteve French { 361138c8a9a5SSteve French struct file_names_info *fninfo; 361238c8a9a5SSteve French 361338c8a9a5SSteve French fninfo = (struct file_names_info *)kstat; 361438c8a9a5SSteve French fninfo->FileNameLength = cpu_to_le32(conv_len); 361538c8a9a5SSteve French memcpy(fninfo->FileName, conv_name, conv_len); 361638c8a9a5SSteve French fninfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 361738c8a9a5SSteve French break; 361838c8a9a5SSteve French } 361938c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 362038c8a9a5SSteve French { 362138c8a9a5SSteve French struct file_id_full_dir_info *dinfo; 362238c8a9a5SSteve French 362338c8a9a5SSteve French dinfo = (struct file_id_full_dir_info *)kstat; 362438c8a9a5SSteve French dinfo->FileNameLength = cpu_to_le32(conv_len); 362538c8a9a5SSteve French dinfo->EaSize = 362638c8a9a5SSteve French smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); 362738c8a9a5SSteve French if (dinfo->EaSize) 362838c8a9a5SSteve French dinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; 362938c8a9a5SSteve French dinfo->Reserved = 0; 363038c8a9a5SSteve French dinfo->UniqueId = cpu_to_le64(ksmbd_kstat->kstat->ino); 363138c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 363238c8a9a5SSteve French dinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 363338c8a9a5SSteve French memcpy(dinfo->FileName, conv_name, conv_len); 363438c8a9a5SSteve French dinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 363538c8a9a5SSteve French break; 363638c8a9a5SSteve French } 363738c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 363838c8a9a5SSteve French { 363938c8a9a5SSteve French struct file_id_both_directory_info *fibdinfo; 364038c8a9a5SSteve French 364138c8a9a5SSteve French fibdinfo = (struct file_id_both_directory_info *)kstat; 364238c8a9a5SSteve French fibdinfo->FileNameLength = cpu_to_le32(conv_len); 364338c8a9a5SSteve French fibdinfo->EaSize = 364438c8a9a5SSteve French smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); 364538c8a9a5SSteve French if (fibdinfo->EaSize) 364638c8a9a5SSteve French fibdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; 364738c8a9a5SSteve French fibdinfo->UniqueId = cpu_to_le64(ksmbd_kstat->kstat->ino); 364838c8a9a5SSteve French fibdinfo->ShortNameLength = 0; 364938c8a9a5SSteve French fibdinfo->Reserved = 0; 365038c8a9a5SSteve French fibdinfo->Reserved2 = cpu_to_le16(0); 365138c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 365238c8a9a5SSteve French fibdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 365338c8a9a5SSteve French memcpy(fibdinfo->FileName, conv_name, conv_len); 365438c8a9a5SSteve French fibdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 365538c8a9a5SSteve French break; 365638c8a9a5SSteve French } 365738c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 365838c8a9a5SSteve French { 365938c8a9a5SSteve French struct smb2_posix_info *posix_info; 366038c8a9a5SSteve French u64 time; 366138c8a9a5SSteve French 366238c8a9a5SSteve French posix_info = (struct smb2_posix_info *)kstat; 366338c8a9a5SSteve French posix_info->Ignored = 0; 366438c8a9a5SSteve French posix_info->CreationTime = cpu_to_le64(ksmbd_kstat->create_time); 366538c8a9a5SSteve French time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->ctime); 366638c8a9a5SSteve French posix_info->ChangeTime = cpu_to_le64(time); 366738c8a9a5SSteve French time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->atime); 366838c8a9a5SSteve French posix_info->LastAccessTime = cpu_to_le64(time); 366938c8a9a5SSteve French time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->mtime); 367038c8a9a5SSteve French posix_info->LastWriteTime = cpu_to_le64(time); 367138c8a9a5SSteve French posix_info->EndOfFile = cpu_to_le64(ksmbd_kstat->kstat->size); 367238c8a9a5SSteve French posix_info->AllocationSize = cpu_to_le64(ksmbd_kstat->kstat->blocks << 9); 367338c8a9a5SSteve French posix_info->DeviceId = cpu_to_le32(ksmbd_kstat->kstat->rdev); 367438c8a9a5SSteve French posix_info->HardLinks = cpu_to_le32(ksmbd_kstat->kstat->nlink); 367538c8a9a5SSteve French posix_info->Mode = cpu_to_le32(ksmbd_kstat->kstat->mode & 0777); 367638c8a9a5SSteve French posix_info->Inode = cpu_to_le64(ksmbd_kstat->kstat->ino); 367738c8a9a5SSteve French posix_info->DosAttributes = 367838c8a9a5SSteve French S_ISDIR(ksmbd_kstat->kstat->mode) ? 367938c8a9a5SSteve French FILE_ATTRIBUTE_DIRECTORY_LE : FILE_ATTRIBUTE_ARCHIVE_LE; 368038c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 368138c8a9a5SSteve French posix_info->DosAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 368238c8a9a5SSteve French /* 368338c8a9a5SSteve French * SidBuffer(32) contain two sids(Domain sid(16), UNIX group sid(16)). 368438c8a9a5SSteve French * UNIX sid(16) = revision(1) + num_subauth(1) + authority(6) + 368538c8a9a5SSteve French * sub_auth(4 * 1(num_subauth)) + RID(4). 368638c8a9a5SSteve French */ 368738c8a9a5SSteve French id_to_sid(from_kuid_munged(&init_user_ns, ksmbd_kstat->kstat->uid), 368838c8a9a5SSteve French SIDUNIX_USER, (struct smb_sid *)&posix_info->SidBuffer[0]); 368938c8a9a5SSteve French id_to_sid(from_kgid_munged(&init_user_ns, ksmbd_kstat->kstat->gid), 369038c8a9a5SSteve French SIDUNIX_GROUP, (struct smb_sid *)&posix_info->SidBuffer[16]); 369138c8a9a5SSteve French memcpy(posix_info->name, conv_name, conv_len); 369238c8a9a5SSteve French posix_info->name_len = cpu_to_le32(conv_len); 369338c8a9a5SSteve French posix_info->NextEntryOffset = cpu_to_le32(next_entry_offset); 369438c8a9a5SSteve French break; 369538c8a9a5SSteve French } 369638c8a9a5SSteve French 369738c8a9a5SSteve French } /* switch (info_level) */ 369838c8a9a5SSteve French 369938c8a9a5SSteve French d_info->last_entry_offset = d_info->data_count; 370038c8a9a5SSteve French d_info->data_count += next_entry_offset; 370138c8a9a5SSteve French d_info->out_buf_len -= next_entry_offset; 370238c8a9a5SSteve French d_info->wptr += next_entry_offset; 370338c8a9a5SSteve French 370438c8a9a5SSteve French ksmbd_debug(SMB, 370538c8a9a5SSteve French "info_level : %d, buf_len :%d, next_offset : %d, data_count : %d\n", 370638c8a9a5SSteve French info_level, d_info->out_buf_len, 370738c8a9a5SSteve French next_entry_offset, d_info->data_count); 370838c8a9a5SSteve French 370938c8a9a5SSteve French free_conv_name: 371038c8a9a5SSteve French kfree(conv_name); 371138c8a9a5SSteve French return rc; 371238c8a9a5SSteve French } 371338c8a9a5SSteve French 371438c8a9a5SSteve French struct smb2_query_dir_private { 371538c8a9a5SSteve French struct ksmbd_work *work; 371638c8a9a5SSteve French char *search_pattern; 371738c8a9a5SSteve French struct ksmbd_file *dir_fp; 371838c8a9a5SSteve French 371938c8a9a5SSteve French struct ksmbd_dir_info *d_info; 372038c8a9a5SSteve French int info_level; 372138c8a9a5SSteve French }; 372238c8a9a5SSteve French 372338c8a9a5SSteve French static void lock_dir(struct ksmbd_file *dir_fp) 372438c8a9a5SSteve French { 372538c8a9a5SSteve French struct dentry *dir = dir_fp->filp->f_path.dentry; 372638c8a9a5SSteve French 372738c8a9a5SSteve French inode_lock_nested(d_inode(dir), I_MUTEX_PARENT); 372838c8a9a5SSteve French } 372938c8a9a5SSteve French 373038c8a9a5SSteve French static void unlock_dir(struct ksmbd_file *dir_fp) 373138c8a9a5SSteve French { 373238c8a9a5SSteve French struct dentry *dir = dir_fp->filp->f_path.dentry; 373338c8a9a5SSteve French 373438c8a9a5SSteve French inode_unlock(d_inode(dir)); 373538c8a9a5SSteve French } 373638c8a9a5SSteve French 373738c8a9a5SSteve French static int process_query_dir_entries(struct smb2_query_dir_private *priv) 373838c8a9a5SSteve French { 373938c8a9a5SSteve French struct mnt_idmap *idmap = file_mnt_idmap(priv->dir_fp->filp); 374038c8a9a5SSteve French struct kstat kstat; 374138c8a9a5SSteve French struct ksmbd_kstat ksmbd_kstat; 374238c8a9a5SSteve French int rc; 374338c8a9a5SSteve French int i; 374438c8a9a5SSteve French 374538c8a9a5SSteve French for (i = 0; i < priv->d_info->num_entry; i++) { 374638c8a9a5SSteve French struct dentry *dent; 374738c8a9a5SSteve French 374838c8a9a5SSteve French if (dentry_name(priv->d_info, priv->info_level)) 374938c8a9a5SSteve French return -EINVAL; 375038c8a9a5SSteve French 375138c8a9a5SSteve French lock_dir(priv->dir_fp); 375238c8a9a5SSteve French dent = lookup_one(idmap, priv->d_info->name, 375338c8a9a5SSteve French priv->dir_fp->filp->f_path.dentry, 375438c8a9a5SSteve French priv->d_info->name_len); 375538c8a9a5SSteve French unlock_dir(priv->dir_fp); 375638c8a9a5SSteve French 375738c8a9a5SSteve French if (IS_ERR(dent)) { 375838c8a9a5SSteve French ksmbd_debug(SMB, "Cannot lookup `%s' [%ld]\n", 375938c8a9a5SSteve French priv->d_info->name, 376038c8a9a5SSteve French PTR_ERR(dent)); 376138c8a9a5SSteve French continue; 376238c8a9a5SSteve French } 376338c8a9a5SSteve French if (unlikely(d_is_negative(dent))) { 376438c8a9a5SSteve French dput(dent); 376538c8a9a5SSteve French ksmbd_debug(SMB, "Negative dentry `%s'\n", 376638c8a9a5SSteve French priv->d_info->name); 376738c8a9a5SSteve French continue; 376838c8a9a5SSteve French } 376938c8a9a5SSteve French 377038c8a9a5SSteve French ksmbd_kstat.kstat = &kstat; 377138c8a9a5SSteve French if (priv->info_level != FILE_NAMES_INFORMATION) 377238c8a9a5SSteve French ksmbd_vfs_fill_dentry_attrs(priv->work, 377338c8a9a5SSteve French idmap, 377438c8a9a5SSteve French dent, 377538c8a9a5SSteve French &ksmbd_kstat); 377638c8a9a5SSteve French 377738c8a9a5SSteve French rc = smb2_populate_readdir_entry(priv->work->conn, 377838c8a9a5SSteve French priv->info_level, 377938c8a9a5SSteve French priv->d_info, 378038c8a9a5SSteve French &ksmbd_kstat); 378138c8a9a5SSteve French dput(dent); 378238c8a9a5SSteve French if (rc) 378338c8a9a5SSteve French return rc; 378438c8a9a5SSteve French } 378538c8a9a5SSteve French return 0; 378638c8a9a5SSteve French } 378738c8a9a5SSteve French 378838c8a9a5SSteve French static int reserve_populate_dentry(struct ksmbd_dir_info *d_info, 378938c8a9a5SSteve French int info_level) 379038c8a9a5SSteve French { 379138c8a9a5SSteve French int struct_sz; 379238c8a9a5SSteve French int conv_len; 379338c8a9a5SSteve French int next_entry_offset; 379438c8a9a5SSteve French 379538c8a9a5SSteve French struct_sz = readdir_info_level_struct_sz(info_level); 379638c8a9a5SSteve French if (struct_sz == -EOPNOTSUPP) 379738c8a9a5SSteve French return -EOPNOTSUPP; 379838c8a9a5SSteve French 379938c8a9a5SSteve French conv_len = (d_info->name_len + 1) * 2; 380038c8a9a5SSteve French next_entry_offset = ALIGN(struct_sz + conv_len, 380138c8a9a5SSteve French KSMBD_DIR_INFO_ALIGNMENT); 380238c8a9a5SSteve French 380338c8a9a5SSteve French if (next_entry_offset > d_info->out_buf_len) { 380438c8a9a5SSteve French d_info->out_buf_len = 0; 380538c8a9a5SSteve French return -ENOSPC; 380638c8a9a5SSteve French } 380738c8a9a5SSteve French 380838c8a9a5SSteve French switch (info_level) { 380938c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 381038c8a9a5SSteve French { 381138c8a9a5SSteve French struct file_full_directory_info *ffdinfo; 381238c8a9a5SSteve French 381338c8a9a5SSteve French ffdinfo = (struct file_full_directory_info *)d_info->wptr; 381438c8a9a5SSteve French memcpy(ffdinfo->FileName, d_info->name, d_info->name_len); 381538c8a9a5SSteve French ffdinfo->FileName[d_info->name_len] = 0x00; 381638c8a9a5SSteve French ffdinfo->FileNameLength = cpu_to_le32(d_info->name_len); 381738c8a9a5SSteve French ffdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 381838c8a9a5SSteve French break; 381938c8a9a5SSteve French } 382038c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 382138c8a9a5SSteve French { 382238c8a9a5SSteve French struct file_both_directory_info *fbdinfo; 382338c8a9a5SSteve French 382438c8a9a5SSteve French fbdinfo = (struct file_both_directory_info *)d_info->wptr; 382538c8a9a5SSteve French memcpy(fbdinfo->FileName, d_info->name, d_info->name_len); 382638c8a9a5SSteve French fbdinfo->FileName[d_info->name_len] = 0x00; 382738c8a9a5SSteve French fbdinfo->FileNameLength = cpu_to_le32(d_info->name_len); 382838c8a9a5SSteve French fbdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 382938c8a9a5SSteve French break; 383038c8a9a5SSteve French } 383138c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 383238c8a9a5SSteve French { 383338c8a9a5SSteve French struct file_directory_info *fdinfo; 383438c8a9a5SSteve French 383538c8a9a5SSteve French fdinfo = (struct file_directory_info *)d_info->wptr; 383638c8a9a5SSteve French memcpy(fdinfo->FileName, d_info->name, d_info->name_len); 383738c8a9a5SSteve French fdinfo->FileName[d_info->name_len] = 0x00; 383838c8a9a5SSteve French fdinfo->FileNameLength = cpu_to_le32(d_info->name_len); 383938c8a9a5SSteve French fdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 384038c8a9a5SSteve French break; 384138c8a9a5SSteve French } 384238c8a9a5SSteve French case FILE_NAMES_INFORMATION: 384338c8a9a5SSteve French { 384438c8a9a5SSteve French struct file_names_info *fninfo; 384538c8a9a5SSteve French 384638c8a9a5SSteve French fninfo = (struct file_names_info *)d_info->wptr; 384738c8a9a5SSteve French memcpy(fninfo->FileName, d_info->name, d_info->name_len); 384838c8a9a5SSteve French fninfo->FileName[d_info->name_len] = 0x00; 384938c8a9a5SSteve French fninfo->FileNameLength = cpu_to_le32(d_info->name_len); 385038c8a9a5SSteve French fninfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 385138c8a9a5SSteve French break; 385238c8a9a5SSteve French } 385338c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 385438c8a9a5SSteve French { 385538c8a9a5SSteve French struct file_id_full_dir_info *dinfo; 385638c8a9a5SSteve French 385738c8a9a5SSteve French dinfo = (struct file_id_full_dir_info *)d_info->wptr; 385838c8a9a5SSteve French memcpy(dinfo->FileName, d_info->name, d_info->name_len); 385938c8a9a5SSteve French dinfo->FileName[d_info->name_len] = 0x00; 386038c8a9a5SSteve French dinfo->FileNameLength = cpu_to_le32(d_info->name_len); 386138c8a9a5SSteve French dinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 386238c8a9a5SSteve French break; 386338c8a9a5SSteve French } 386438c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 386538c8a9a5SSteve French { 386638c8a9a5SSteve French struct file_id_both_directory_info *fibdinfo; 386738c8a9a5SSteve French 386838c8a9a5SSteve French fibdinfo = (struct file_id_both_directory_info *)d_info->wptr; 386938c8a9a5SSteve French memcpy(fibdinfo->FileName, d_info->name, d_info->name_len); 387038c8a9a5SSteve French fibdinfo->FileName[d_info->name_len] = 0x00; 387138c8a9a5SSteve French fibdinfo->FileNameLength = cpu_to_le32(d_info->name_len); 387238c8a9a5SSteve French fibdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 387338c8a9a5SSteve French break; 387438c8a9a5SSteve French } 387538c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 387638c8a9a5SSteve French { 387738c8a9a5SSteve French struct smb2_posix_info *posix_info; 387838c8a9a5SSteve French 387938c8a9a5SSteve French posix_info = (struct smb2_posix_info *)d_info->wptr; 388038c8a9a5SSteve French memcpy(posix_info->name, d_info->name, d_info->name_len); 388138c8a9a5SSteve French posix_info->name[d_info->name_len] = 0x00; 388238c8a9a5SSteve French posix_info->name_len = cpu_to_le32(d_info->name_len); 388338c8a9a5SSteve French posix_info->NextEntryOffset = 388438c8a9a5SSteve French cpu_to_le32(next_entry_offset); 388538c8a9a5SSteve French break; 388638c8a9a5SSteve French } 388738c8a9a5SSteve French } /* switch (info_level) */ 388838c8a9a5SSteve French 388938c8a9a5SSteve French d_info->num_entry++; 389038c8a9a5SSteve French d_info->out_buf_len -= next_entry_offset; 389138c8a9a5SSteve French d_info->wptr += next_entry_offset; 389238c8a9a5SSteve French return 0; 389338c8a9a5SSteve French } 389438c8a9a5SSteve French 389538c8a9a5SSteve French static bool __query_dir(struct dir_context *ctx, const char *name, int namlen, 389638c8a9a5SSteve French loff_t offset, u64 ino, unsigned int d_type) 389738c8a9a5SSteve French { 389838c8a9a5SSteve French struct ksmbd_readdir_data *buf; 389938c8a9a5SSteve French struct smb2_query_dir_private *priv; 390038c8a9a5SSteve French struct ksmbd_dir_info *d_info; 390138c8a9a5SSteve French int rc; 390238c8a9a5SSteve French 390338c8a9a5SSteve French buf = container_of(ctx, struct ksmbd_readdir_data, ctx); 390438c8a9a5SSteve French priv = buf->private; 390538c8a9a5SSteve French d_info = priv->d_info; 390638c8a9a5SSteve French 390738c8a9a5SSteve French /* dot and dotdot entries are already reserved */ 390838c8a9a5SSteve French if (!strcmp(".", name) || !strcmp("..", name)) 390938c8a9a5SSteve French return true; 391038c8a9a5SSteve French if (ksmbd_share_veto_filename(priv->work->tcon->share_conf, name)) 391138c8a9a5SSteve French return true; 391238c8a9a5SSteve French if (!match_pattern(name, namlen, priv->search_pattern)) 391338c8a9a5SSteve French return true; 391438c8a9a5SSteve French 391538c8a9a5SSteve French d_info->name = name; 391638c8a9a5SSteve French d_info->name_len = namlen; 391738c8a9a5SSteve French rc = reserve_populate_dentry(d_info, priv->info_level); 391838c8a9a5SSteve French if (rc) 391938c8a9a5SSteve French return false; 392038c8a9a5SSteve French if (d_info->flags & SMB2_RETURN_SINGLE_ENTRY) 392138c8a9a5SSteve French d_info->out_buf_len = 0; 392238c8a9a5SSteve French return true; 392338c8a9a5SSteve French } 392438c8a9a5SSteve French 392538c8a9a5SSteve French static int verify_info_level(int info_level) 392638c8a9a5SSteve French { 392738c8a9a5SSteve French switch (info_level) { 392838c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 392938c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 393038c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 393138c8a9a5SSteve French case FILE_NAMES_INFORMATION: 393238c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 393338c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 393438c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 393538c8a9a5SSteve French break; 393638c8a9a5SSteve French default: 393738c8a9a5SSteve French return -EOPNOTSUPP; 393838c8a9a5SSteve French } 393938c8a9a5SSteve French 394038c8a9a5SSteve French return 0; 394138c8a9a5SSteve French } 394238c8a9a5SSteve French 394338c8a9a5SSteve French static int smb2_resp_buf_len(struct ksmbd_work *work, unsigned short hdr2_len) 394438c8a9a5SSteve French { 394538c8a9a5SSteve French int free_len; 394638c8a9a5SSteve French 394738c8a9a5SSteve French free_len = (int)(work->response_sz - 394838c8a9a5SSteve French (get_rfc1002_len(work->response_buf) + 4)) - hdr2_len; 394938c8a9a5SSteve French return free_len; 395038c8a9a5SSteve French } 395138c8a9a5SSteve French 395238c8a9a5SSteve French static int smb2_calc_max_out_buf_len(struct ksmbd_work *work, 395338c8a9a5SSteve French unsigned short hdr2_len, 395438c8a9a5SSteve French unsigned int out_buf_len) 395538c8a9a5SSteve French { 395638c8a9a5SSteve French int free_len; 395738c8a9a5SSteve French 395838c8a9a5SSteve French if (out_buf_len > work->conn->vals->max_trans_size) 395938c8a9a5SSteve French return -EINVAL; 396038c8a9a5SSteve French 396138c8a9a5SSteve French free_len = smb2_resp_buf_len(work, hdr2_len); 396238c8a9a5SSteve French if (free_len < 0) 396338c8a9a5SSteve French return -EINVAL; 396438c8a9a5SSteve French 396538c8a9a5SSteve French return min_t(int, out_buf_len, free_len); 396638c8a9a5SSteve French } 396738c8a9a5SSteve French 396838c8a9a5SSteve French int smb2_query_dir(struct ksmbd_work *work) 396938c8a9a5SSteve French { 397038c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 397138c8a9a5SSteve French struct smb2_query_directory_req *req; 397238c8a9a5SSteve French struct smb2_query_directory_rsp *rsp; 397338c8a9a5SSteve French struct ksmbd_share_config *share = work->tcon->share_conf; 397438c8a9a5SSteve French struct ksmbd_file *dir_fp = NULL; 397538c8a9a5SSteve French struct ksmbd_dir_info d_info; 397638c8a9a5SSteve French int rc = 0; 397738c8a9a5SSteve French char *srch_ptr = NULL; 397838c8a9a5SSteve French unsigned char srch_flag; 397938c8a9a5SSteve French int buffer_sz; 398038c8a9a5SSteve French struct smb2_query_dir_private query_dir_private = {NULL, }; 398138c8a9a5SSteve French 398238c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 398338c8a9a5SSteve French 398438c8a9a5SSteve French if (ksmbd_override_fsids(work)) { 398538c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MEMORY; 398638c8a9a5SSteve French smb2_set_err_rsp(work); 398738c8a9a5SSteve French return -ENOMEM; 398838c8a9a5SSteve French } 398938c8a9a5SSteve French 399038c8a9a5SSteve French rc = verify_info_level(req->FileInformationClass); 399138c8a9a5SSteve French if (rc) { 399238c8a9a5SSteve French rc = -EFAULT; 399338c8a9a5SSteve French goto err_out2; 399438c8a9a5SSteve French } 399538c8a9a5SSteve French 399638c8a9a5SSteve French dir_fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); 399738c8a9a5SSteve French if (!dir_fp) { 399838c8a9a5SSteve French rc = -EBADF; 399938c8a9a5SSteve French goto err_out2; 400038c8a9a5SSteve French } 400138c8a9a5SSteve French 400238c8a9a5SSteve French if (!(dir_fp->daccess & FILE_LIST_DIRECTORY_LE) || 400338c8a9a5SSteve French inode_permission(file_mnt_idmap(dir_fp->filp), 400438c8a9a5SSteve French file_inode(dir_fp->filp), 400538c8a9a5SSteve French MAY_READ | MAY_EXEC)) { 400638c8a9a5SSteve French pr_err("no right to enumerate directory (%pD)\n", dir_fp->filp); 400738c8a9a5SSteve French rc = -EACCES; 400838c8a9a5SSteve French goto err_out2; 400938c8a9a5SSteve French } 401038c8a9a5SSteve French 401138c8a9a5SSteve French if (!S_ISDIR(file_inode(dir_fp->filp)->i_mode)) { 401238c8a9a5SSteve French pr_err("can't do query dir for a file\n"); 401338c8a9a5SSteve French rc = -EINVAL; 401438c8a9a5SSteve French goto err_out2; 401538c8a9a5SSteve French } 401638c8a9a5SSteve French 401738c8a9a5SSteve French srch_flag = req->Flags; 401838c8a9a5SSteve French srch_ptr = smb_strndup_from_utf16(req->Buffer, 401938c8a9a5SSteve French le16_to_cpu(req->FileNameLength), 1, 402038c8a9a5SSteve French conn->local_nls); 402138c8a9a5SSteve French if (IS_ERR(srch_ptr)) { 402238c8a9a5SSteve French ksmbd_debug(SMB, "Search Pattern not found\n"); 402338c8a9a5SSteve French rc = -EINVAL; 402438c8a9a5SSteve French goto err_out2; 402538c8a9a5SSteve French } else { 402638c8a9a5SSteve French ksmbd_debug(SMB, "Search pattern is %s\n", srch_ptr); 402738c8a9a5SSteve French } 402838c8a9a5SSteve French 402938c8a9a5SSteve French if (srch_flag & SMB2_REOPEN || srch_flag & SMB2_RESTART_SCANS) { 403038c8a9a5SSteve French ksmbd_debug(SMB, "Restart directory scan\n"); 403138c8a9a5SSteve French generic_file_llseek(dir_fp->filp, 0, SEEK_SET); 403238c8a9a5SSteve French } 403338c8a9a5SSteve French 403438c8a9a5SSteve French memset(&d_info, 0, sizeof(struct ksmbd_dir_info)); 403538c8a9a5SSteve French d_info.wptr = (char *)rsp->Buffer; 403638c8a9a5SSteve French d_info.rptr = (char *)rsp->Buffer; 403738c8a9a5SSteve French d_info.out_buf_len = 403838c8a9a5SSteve French smb2_calc_max_out_buf_len(work, 8, 403938c8a9a5SSteve French le32_to_cpu(req->OutputBufferLength)); 404038c8a9a5SSteve French if (d_info.out_buf_len < 0) { 404138c8a9a5SSteve French rc = -EINVAL; 404238c8a9a5SSteve French goto err_out; 404338c8a9a5SSteve French } 404438c8a9a5SSteve French d_info.flags = srch_flag; 404538c8a9a5SSteve French 404638c8a9a5SSteve French /* 404738c8a9a5SSteve French * reserve dot and dotdot entries in head of buffer 404838c8a9a5SSteve French * in first response 404938c8a9a5SSteve French */ 405038c8a9a5SSteve French rc = ksmbd_populate_dot_dotdot_entries(work, req->FileInformationClass, 405138c8a9a5SSteve French dir_fp, &d_info, srch_ptr, 405238c8a9a5SSteve French smb2_populate_readdir_entry); 405338c8a9a5SSteve French if (rc == -ENOSPC) 405438c8a9a5SSteve French rc = 0; 405538c8a9a5SSteve French else if (rc) 405638c8a9a5SSteve French goto err_out; 405738c8a9a5SSteve French 405838c8a9a5SSteve French if (test_share_config_flag(share, KSMBD_SHARE_FLAG_HIDE_DOT_FILES)) 405938c8a9a5SSteve French d_info.hide_dot_file = true; 406038c8a9a5SSteve French 406138c8a9a5SSteve French buffer_sz = d_info.out_buf_len; 406238c8a9a5SSteve French d_info.rptr = d_info.wptr; 406338c8a9a5SSteve French query_dir_private.work = work; 406438c8a9a5SSteve French query_dir_private.search_pattern = srch_ptr; 406538c8a9a5SSteve French query_dir_private.dir_fp = dir_fp; 406638c8a9a5SSteve French query_dir_private.d_info = &d_info; 406738c8a9a5SSteve French query_dir_private.info_level = req->FileInformationClass; 406838c8a9a5SSteve French dir_fp->readdir_data.private = &query_dir_private; 406938c8a9a5SSteve French set_ctx_actor(&dir_fp->readdir_data.ctx, __query_dir); 407038c8a9a5SSteve French 407138c8a9a5SSteve French rc = iterate_dir(dir_fp->filp, &dir_fp->readdir_data.ctx); 407238c8a9a5SSteve French /* 407338c8a9a5SSteve French * req->OutputBufferLength is too small to contain even one entry. 407438c8a9a5SSteve French * In this case, it immediately returns OutputBufferLength 0 to client. 407538c8a9a5SSteve French */ 407638c8a9a5SSteve French if (!d_info.out_buf_len && !d_info.num_entry) 407738c8a9a5SSteve French goto no_buf_len; 407838c8a9a5SSteve French if (rc > 0 || rc == -ENOSPC) 407938c8a9a5SSteve French rc = 0; 408038c8a9a5SSteve French else if (rc) 408138c8a9a5SSteve French goto err_out; 408238c8a9a5SSteve French 408338c8a9a5SSteve French d_info.wptr = d_info.rptr; 408438c8a9a5SSteve French d_info.out_buf_len = buffer_sz; 408538c8a9a5SSteve French rc = process_query_dir_entries(&query_dir_private); 408638c8a9a5SSteve French if (rc) 408738c8a9a5SSteve French goto err_out; 408838c8a9a5SSteve French 408938c8a9a5SSteve French if (!d_info.data_count && d_info.out_buf_len >= 0) { 409038c8a9a5SSteve French if (srch_flag & SMB2_RETURN_SINGLE_ENTRY && !is_asterisk(srch_ptr)) { 409138c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_SUCH_FILE; 409238c8a9a5SSteve French } else { 409338c8a9a5SSteve French dir_fp->dot_dotdot[0] = dir_fp->dot_dotdot[1] = 0; 409438c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MORE_FILES; 409538c8a9a5SSteve French } 409638c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(9); 409738c8a9a5SSteve French rsp->OutputBufferOffset = cpu_to_le16(0); 409838c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(0); 409938c8a9a5SSteve French rsp->Buffer[0] = 0; 4100e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, 4101e2b76ab8SNamjae Jeon sizeof(struct smb2_query_directory_rsp)); 4102e2b76ab8SNamjae Jeon if (rc) 4103e2b76ab8SNamjae Jeon goto err_out; 410438c8a9a5SSteve French } else { 410538c8a9a5SSteve French no_buf_len: 410638c8a9a5SSteve French ((struct file_directory_info *) 410738c8a9a5SSteve French ((char *)rsp->Buffer + d_info.last_entry_offset)) 410838c8a9a5SSteve French ->NextEntryOffset = 0; 410938c8a9a5SSteve French if (d_info.data_count >= d_info.last_entry_off_align) 411038c8a9a5SSteve French d_info.data_count -= d_info.last_entry_off_align; 411138c8a9a5SSteve French 411238c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(9); 411338c8a9a5SSteve French rsp->OutputBufferOffset = cpu_to_le16(72); 411438c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(d_info.data_count); 4115e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, 4116e2b76ab8SNamjae Jeon offsetof(struct smb2_query_directory_rsp, Buffer) + 4117e2b76ab8SNamjae Jeon d_info.data_count); 4118e2b76ab8SNamjae Jeon if (rc) 4119e2b76ab8SNamjae Jeon goto err_out; 412038c8a9a5SSteve French } 412138c8a9a5SSteve French 412238c8a9a5SSteve French kfree(srch_ptr); 412338c8a9a5SSteve French ksmbd_fd_put(work, dir_fp); 412438c8a9a5SSteve French ksmbd_revert_fsids(work); 412538c8a9a5SSteve French return 0; 412638c8a9a5SSteve French 412738c8a9a5SSteve French err_out: 412838c8a9a5SSteve French pr_err("error while processing smb2 query dir rc = %d\n", rc); 412938c8a9a5SSteve French kfree(srch_ptr); 413038c8a9a5SSteve French 413138c8a9a5SSteve French err_out2: 413238c8a9a5SSteve French if (rc == -EINVAL) 413338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 413438c8a9a5SSteve French else if (rc == -EACCES) 413538c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 413638c8a9a5SSteve French else if (rc == -ENOENT) 413738c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_SUCH_FILE; 413838c8a9a5SSteve French else if (rc == -EBADF) 413938c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 414038c8a9a5SSteve French else if (rc == -ENOMEM) 414138c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MEMORY; 414238c8a9a5SSteve French else if (rc == -EFAULT) 414338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_INFO_CLASS; 414438c8a9a5SSteve French else if (rc == -EIO) 414538c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CORRUPT_ERROR; 414638c8a9a5SSteve French if (!rsp->hdr.Status) 414738c8a9a5SSteve French rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; 414838c8a9a5SSteve French 414938c8a9a5SSteve French smb2_set_err_rsp(work); 415038c8a9a5SSteve French ksmbd_fd_put(work, dir_fp); 415138c8a9a5SSteve French ksmbd_revert_fsids(work); 415238c8a9a5SSteve French return 0; 415338c8a9a5SSteve French } 415438c8a9a5SSteve French 415538c8a9a5SSteve French /** 415638c8a9a5SSteve French * buffer_check_err() - helper function to check buffer errors 415738c8a9a5SSteve French * @reqOutputBufferLength: max buffer length expected in command response 415838c8a9a5SSteve French * @rsp: query info response buffer contains output buffer length 415938c8a9a5SSteve French * @rsp_org: base response buffer pointer in case of chained response 416038c8a9a5SSteve French * 416138c8a9a5SSteve French * Return: 0 on success, otherwise error 416238c8a9a5SSteve French */ 416338c8a9a5SSteve French static int buffer_check_err(int reqOutputBufferLength, 416438c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 4165e2b76ab8SNamjae Jeon void *rsp_org) 416638c8a9a5SSteve French { 416738c8a9a5SSteve French if (reqOutputBufferLength < le32_to_cpu(rsp->OutputBufferLength)) { 416838c8a9a5SSteve French pr_err("Invalid Buffer Size Requested\n"); 416938c8a9a5SSteve French rsp->hdr.Status = STATUS_INFO_LENGTH_MISMATCH; 417038c8a9a5SSteve French *(__be32 *)rsp_org = cpu_to_be32(sizeof(struct smb2_hdr)); 417138c8a9a5SSteve French return -EINVAL; 417238c8a9a5SSteve French } 417338c8a9a5SSteve French return 0; 417438c8a9a5SSteve French } 417538c8a9a5SSteve French 417638c8a9a5SSteve French static void get_standard_info_pipe(struct smb2_query_info_rsp *rsp, 417738c8a9a5SSteve French void *rsp_org) 417838c8a9a5SSteve French { 417938c8a9a5SSteve French struct smb2_file_standard_info *sinfo; 418038c8a9a5SSteve French 418138c8a9a5SSteve French sinfo = (struct smb2_file_standard_info *)rsp->Buffer; 418238c8a9a5SSteve French 418338c8a9a5SSteve French sinfo->AllocationSize = cpu_to_le64(4096); 418438c8a9a5SSteve French sinfo->EndOfFile = cpu_to_le64(0); 418538c8a9a5SSteve French sinfo->NumberOfLinks = cpu_to_le32(1); 418638c8a9a5SSteve French sinfo->DeletePending = 1; 418738c8a9a5SSteve French sinfo->Directory = 0; 418838c8a9a5SSteve French rsp->OutputBufferLength = 418938c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_standard_info)); 419038c8a9a5SSteve French } 419138c8a9a5SSteve French 419238c8a9a5SSteve French static void get_internal_info_pipe(struct smb2_query_info_rsp *rsp, u64 num, 419338c8a9a5SSteve French void *rsp_org) 419438c8a9a5SSteve French { 419538c8a9a5SSteve French struct smb2_file_internal_info *file_info; 419638c8a9a5SSteve French 419738c8a9a5SSteve French file_info = (struct smb2_file_internal_info *)rsp->Buffer; 419838c8a9a5SSteve French 419938c8a9a5SSteve French /* any unique number */ 420038c8a9a5SSteve French file_info->IndexNumber = cpu_to_le64(num | (1ULL << 63)); 420138c8a9a5SSteve French rsp->OutputBufferLength = 420238c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_internal_info)); 420338c8a9a5SSteve French } 420438c8a9a5SSteve French 420538c8a9a5SSteve French static int smb2_get_info_file_pipe(struct ksmbd_session *sess, 420638c8a9a5SSteve French struct smb2_query_info_req *req, 420738c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 420838c8a9a5SSteve French void *rsp_org) 420938c8a9a5SSteve French { 421038c8a9a5SSteve French u64 id; 421138c8a9a5SSteve French int rc; 421238c8a9a5SSteve French 421338c8a9a5SSteve French /* 421438c8a9a5SSteve French * Windows can sometime send query file info request on 421538c8a9a5SSteve French * pipe without opening it, checking error condition here 421638c8a9a5SSteve French */ 421738c8a9a5SSteve French id = req->VolatileFileId; 421838c8a9a5SSteve French if (!ksmbd_session_rpc_method(sess, id)) 421938c8a9a5SSteve French return -ENOENT; 422038c8a9a5SSteve French 422138c8a9a5SSteve French ksmbd_debug(SMB, "FileInfoClass %u, FileId 0x%llx\n", 422238c8a9a5SSteve French req->FileInfoClass, req->VolatileFileId); 422338c8a9a5SSteve French 422438c8a9a5SSteve French switch (req->FileInfoClass) { 422538c8a9a5SSteve French case FILE_STANDARD_INFORMATION: 422638c8a9a5SSteve French get_standard_info_pipe(rsp, rsp_org); 422738c8a9a5SSteve French rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), 4228e2b76ab8SNamjae Jeon rsp, rsp_org); 422938c8a9a5SSteve French break; 423038c8a9a5SSteve French case FILE_INTERNAL_INFORMATION: 423138c8a9a5SSteve French get_internal_info_pipe(rsp, id, rsp_org); 423238c8a9a5SSteve French rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), 4233e2b76ab8SNamjae Jeon rsp, rsp_org); 423438c8a9a5SSteve French break; 423538c8a9a5SSteve French default: 423638c8a9a5SSteve French ksmbd_debug(SMB, "smb2_info_file_pipe for %u not supported\n", 423738c8a9a5SSteve French req->FileInfoClass); 423838c8a9a5SSteve French rc = -EOPNOTSUPP; 423938c8a9a5SSteve French } 424038c8a9a5SSteve French return rc; 424138c8a9a5SSteve French } 424238c8a9a5SSteve French 424338c8a9a5SSteve French /** 424438c8a9a5SSteve French * smb2_get_ea() - handler for smb2 get extended attribute command 424538c8a9a5SSteve French * @work: smb work containing query info command buffer 424638c8a9a5SSteve French * @fp: ksmbd_file pointer 424738c8a9a5SSteve French * @req: get extended attribute request 424838c8a9a5SSteve French * @rsp: response buffer pointer 424938c8a9a5SSteve French * @rsp_org: base response buffer pointer in case of chained response 425038c8a9a5SSteve French * 425138c8a9a5SSteve French * Return: 0 on success, otherwise error 425238c8a9a5SSteve French */ 425338c8a9a5SSteve French static int smb2_get_ea(struct ksmbd_work *work, struct ksmbd_file *fp, 425438c8a9a5SSteve French struct smb2_query_info_req *req, 425538c8a9a5SSteve French struct smb2_query_info_rsp *rsp, void *rsp_org) 425638c8a9a5SSteve French { 425738c8a9a5SSteve French struct smb2_ea_info *eainfo, *prev_eainfo; 425838c8a9a5SSteve French char *name, *ptr, *xattr_list = NULL, *buf; 425938c8a9a5SSteve French int rc, name_len, value_len, xattr_list_len, idx; 426038c8a9a5SSteve French ssize_t buf_free_len, alignment_bytes, next_offset, rsp_data_cnt = 0; 426138c8a9a5SSteve French struct smb2_ea_info_req *ea_req = NULL; 426238c8a9a5SSteve French const struct path *path; 426338c8a9a5SSteve French struct mnt_idmap *idmap = file_mnt_idmap(fp->filp); 426438c8a9a5SSteve French 426538c8a9a5SSteve French if (!(fp->daccess & FILE_READ_EA_LE)) { 426638c8a9a5SSteve French pr_err("Not permitted to read ext attr : 0x%x\n", 426738c8a9a5SSteve French fp->daccess); 426838c8a9a5SSteve French return -EACCES; 426938c8a9a5SSteve French } 427038c8a9a5SSteve French 427138c8a9a5SSteve French path = &fp->filp->f_path; 427238c8a9a5SSteve French /* single EA entry is requested with given user.* name */ 427338c8a9a5SSteve French if (req->InputBufferLength) { 427438c8a9a5SSteve French if (le32_to_cpu(req->InputBufferLength) < 427538c8a9a5SSteve French sizeof(struct smb2_ea_info_req)) 427638c8a9a5SSteve French return -EINVAL; 427738c8a9a5SSteve French 427838c8a9a5SSteve French ea_req = (struct smb2_ea_info_req *)req->Buffer; 427938c8a9a5SSteve French } else { 428038c8a9a5SSteve French /* need to send all EAs, if no specific EA is requested*/ 428138c8a9a5SSteve French if (le32_to_cpu(req->Flags) & SL_RETURN_SINGLE_ENTRY) 428238c8a9a5SSteve French ksmbd_debug(SMB, 428338c8a9a5SSteve French "All EAs are requested but need to send single EA entry in rsp flags 0x%x\n", 428438c8a9a5SSteve French le32_to_cpu(req->Flags)); 428538c8a9a5SSteve French } 428638c8a9a5SSteve French 428738c8a9a5SSteve French buf_free_len = 428838c8a9a5SSteve French smb2_calc_max_out_buf_len(work, 8, 428938c8a9a5SSteve French le32_to_cpu(req->OutputBufferLength)); 429038c8a9a5SSteve French if (buf_free_len < 0) 429138c8a9a5SSteve French return -EINVAL; 429238c8a9a5SSteve French 429338c8a9a5SSteve French rc = ksmbd_vfs_listxattr(path->dentry, &xattr_list); 429438c8a9a5SSteve French if (rc < 0) { 429538c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 429638c8a9a5SSteve French goto out; 429738c8a9a5SSteve French } else if (!rc) { /* there is no EA in the file */ 429838c8a9a5SSteve French ksmbd_debug(SMB, "no ea data in the file\n"); 429938c8a9a5SSteve French goto done; 430038c8a9a5SSteve French } 430138c8a9a5SSteve French xattr_list_len = rc; 430238c8a9a5SSteve French 430338c8a9a5SSteve French ptr = (char *)rsp->Buffer; 430438c8a9a5SSteve French eainfo = (struct smb2_ea_info *)ptr; 430538c8a9a5SSteve French prev_eainfo = eainfo; 430638c8a9a5SSteve French idx = 0; 430738c8a9a5SSteve French 430838c8a9a5SSteve French while (idx < xattr_list_len) { 430938c8a9a5SSteve French name = xattr_list + idx; 431038c8a9a5SSteve French name_len = strlen(name); 431138c8a9a5SSteve French 431238c8a9a5SSteve French ksmbd_debug(SMB, "%s, len %d\n", name, name_len); 431338c8a9a5SSteve French idx += name_len + 1; 431438c8a9a5SSteve French 431538c8a9a5SSteve French /* 431638c8a9a5SSteve French * CIFS does not support EA other than user.* namespace, 431738c8a9a5SSteve French * still keep the framework generic, to list other attrs 431838c8a9a5SSteve French * in future. 431938c8a9a5SSteve French */ 432038c8a9a5SSteve French if (strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) 432138c8a9a5SSteve French continue; 432238c8a9a5SSteve French 432338c8a9a5SSteve French if (!strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, 432438c8a9a5SSteve French STREAM_PREFIX_LEN)) 432538c8a9a5SSteve French continue; 432638c8a9a5SSteve French 432738c8a9a5SSteve French if (req->InputBufferLength && 432838c8a9a5SSteve French strncmp(&name[XATTR_USER_PREFIX_LEN], ea_req->name, 432938c8a9a5SSteve French ea_req->EaNameLength)) 433038c8a9a5SSteve French continue; 433138c8a9a5SSteve French 433238c8a9a5SSteve French if (!strncmp(&name[XATTR_USER_PREFIX_LEN], 433338c8a9a5SSteve French DOS_ATTRIBUTE_PREFIX, DOS_ATTRIBUTE_PREFIX_LEN)) 433438c8a9a5SSteve French continue; 433538c8a9a5SSteve French 433638c8a9a5SSteve French if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) 433738c8a9a5SSteve French name_len -= XATTR_USER_PREFIX_LEN; 433838c8a9a5SSteve French 43390ba5439dSNamjae Jeon ptr = eainfo->name + name_len + 1; 434038c8a9a5SSteve French buf_free_len -= (offsetof(struct smb2_ea_info, name) + 434138c8a9a5SSteve French name_len + 1); 434238c8a9a5SSteve French /* bailout if xattr can't fit in buf_free_len */ 434338c8a9a5SSteve French value_len = ksmbd_vfs_getxattr(idmap, path->dentry, 434438c8a9a5SSteve French name, &buf); 434538c8a9a5SSteve French if (value_len <= 0) { 434638c8a9a5SSteve French rc = -ENOENT; 434738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 434838c8a9a5SSteve French goto out; 434938c8a9a5SSteve French } 435038c8a9a5SSteve French 435138c8a9a5SSteve French buf_free_len -= value_len; 435238c8a9a5SSteve French if (buf_free_len < 0) { 435338c8a9a5SSteve French kfree(buf); 435438c8a9a5SSteve French break; 435538c8a9a5SSteve French } 435638c8a9a5SSteve French 435738c8a9a5SSteve French memcpy(ptr, buf, value_len); 435838c8a9a5SSteve French kfree(buf); 435938c8a9a5SSteve French 436038c8a9a5SSteve French ptr += value_len; 436138c8a9a5SSteve French eainfo->Flags = 0; 436238c8a9a5SSteve French eainfo->EaNameLength = name_len; 436338c8a9a5SSteve French 436438c8a9a5SSteve French if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) 436538c8a9a5SSteve French memcpy(eainfo->name, &name[XATTR_USER_PREFIX_LEN], 436638c8a9a5SSteve French name_len); 436738c8a9a5SSteve French else 436838c8a9a5SSteve French memcpy(eainfo->name, name, name_len); 436938c8a9a5SSteve French 437038c8a9a5SSteve French eainfo->name[name_len] = '\0'; 437138c8a9a5SSteve French eainfo->EaValueLength = cpu_to_le16(value_len); 437238c8a9a5SSteve French next_offset = offsetof(struct smb2_ea_info, name) + 437338c8a9a5SSteve French name_len + 1 + value_len; 437438c8a9a5SSteve French 437538c8a9a5SSteve French /* align next xattr entry at 4 byte bundary */ 437638c8a9a5SSteve French alignment_bytes = ((next_offset + 3) & ~3) - next_offset; 437738c8a9a5SSteve French if (alignment_bytes) { 437838c8a9a5SSteve French memset(ptr, '\0', alignment_bytes); 437938c8a9a5SSteve French ptr += alignment_bytes; 438038c8a9a5SSteve French next_offset += alignment_bytes; 438138c8a9a5SSteve French buf_free_len -= alignment_bytes; 438238c8a9a5SSteve French } 438338c8a9a5SSteve French eainfo->NextEntryOffset = cpu_to_le32(next_offset); 438438c8a9a5SSteve French prev_eainfo = eainfo; 438538c8a9a5SSteve French eainfo = (struct smb2_ea_info *)ptr; 438638c8a9a5SSteve French rsp_data_cnt += next_offset; 438738c8a9a5SSteve French 438838c8a9a5SSteve French if (req->InputBufferLength) { 438938c8a9a5SSteve French ksmbd_debug(SMB, "single entry requested\n"); 439038c8a9a5SSteve French break; 439138c8a9a5SSteve French } 439238c8a9a5SSteve French } 439338c8a9a5SSteve French 439438c8a9a5SSteve French /* no more ea entries */ 439538c8a9a5SSteve French prev_eainfo->NextEntryOffset = 0; 439638c8a9a5SSteve French done: 439738c8a9a5SSteve French rc = 0; 439838c8a9a5SSteve French if (rsp_data_cnt == 0) 439938c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_EAS_ON_FILE; 440038c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(rsp_data_cnt); 440138c8a9a5SSteve French out: 440238c8a9a5SSteve French kvfree(xattr_list); 440338c8a9a5SSteve French return rc; 440438c8a9a5SSteve French } 440538c8a9a5SSteve French 440638c8a9a5SSteve French static void get_file_access_info(struct smb2_query_info_rsp *rsp, 440738c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 440838c8a9a5SSteve French { 440938c8a9a5SSteve French struct smb2_file_access_info *file_info; 441038c8a9a5SSteve French 441138c8a9a5SSteve French file_info = (struct smb2_file_access_info *)rsp->Buffer; 441238c8a9a5SSteve French file_info->AccessFlags = fp->daccess; 441338c8a9a5SSteve French rsp->OutputBufferLength = 441438c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_access_info)); 441538c8a9a5SSteve French } 441638c8a9a5SSteve French 441738c8a9a5SSteve French static int get_file_basic_info(struct smb2_query_info_rsp *rsp, 441838c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 441938c8a9a5SSteve French { 442038c8a9a5SSteve French struct smb2_file_basic_info *basic_info; 442138c8a9a5SSteve French struct kstat stat; 442238c8a9a5SSteve French u64 time; 442338c8a9a5SSteve French 442438c8a9a5SSteve French if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { 442538c8a9a5SSteve French pr_err("no right to read the attributes : 0x%x\n", 442638c8a9a5SSteve French fp->daccess); 442738c8a9a5SSteve French return -EACCES; 442838c8a9a5SSteve French } 442938c8a9a5SSteve French 443038c8a9a5SSteve French basic_info = (struct smb2_file_basic_info *)rsp->Buffer; 44310d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, 44320d72b928SJeff Layton file_inode(fp->filp), &stat); 443338c8a9a5SSteve French basic_info->CreationTime = cpu_to_le64(fp->create_time); 443438c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.atime); 443538c8a9a5SSteve French basic_info->LastAccessTime = cpu_to_le64(time); 443638c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.mtime); 443738c8a9a5SSteve French basic_info->LastWriteTime = cpu_to_le64(time); 443838c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.ctime); 443938c8a9a5SSteve French basic_info->ChangeTime = cpu_to_le64(time); 444038c8a9a5SSteve French basic_info->Attributes = fp->f_ci->m_fattr; 444138c8a9a5SSteve French basic_info->Pad1 = 0; 444238c8a9a5SSteve French rsp->OutputBufferLength = 444338c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_basic_info)); 444438c8a9a5SSteve French return 0; 444538c8a9a5SSteve French } 444638c8a9a5SSteve French 444738c8a9a5SSteve French static void get_file_standard_info(struct smb2_query_info_rsp *rsp, 444838c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 444938c8a9a5SSteve French { 445038c8a9a5SSteve French struct smb2_file_standard_info *sinfo; 445138c8a9a5SSteve French unsigned int delete_pending; 445238c8a9a5SSteve French struct inode *inode; 445338c8a9a5SSteve French struct kstat stat; 445438c8a9a5SSteve French 445538c8a9a5SSteve French inode = file_inode(fp->filp); 44560d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, inode, &stat); 445738c8a9a5SSteve French 445838c8a9a5SSteve French sinfo = (struct smb2_file_standard_info *)rsp->Buffer; 445938c8a9a5SSteve French delete_pending = ksmbd_inode_pending_delete(fp); 446038c8a9a5SSteve French 44616cc2268fSNamjae Jeon sinfo->AllocationSize = cpu_to_le64(inode->i_blocks << 9); 446238c8a9a5SSteve French sinfo->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); 446338c8a9a5SSteve French sinfo->NumberOfLinks = cpu_to_le32(get_nlink(&stat) - delete_pending); 446438c8a9a5SSteve French sinfo->DeletePending = delete_pending; 446538c8a9a5SSteve French sinfo->Directory = S_ISDIR(stat.mode) ? 1 : 0; 446638c8a9a5SSteve French rsp->OutputBufferLength = 446738c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_standard_info)); 446838c8a9a5SSteve French } 446938c8a9a5SSteve French 447038c8a9a5SSteve French static void get_file_alignment_info(struct smb2_query_info_rsp *rsp, 447138c8a9a5SSteve French void *rsp_org) 447238c8a9a5SSteve French { 447338c8a9a5SSteve French struct smb2_file_alignment_info *file_info; 447438c8a9a5SSteve French 447538c8a9a5SSteve French file_info = (struct smb2_file_alignment_info *)rsp->Buffer; 447638c8a9a5SSteve French file_info->AlignmentRequirement = 0; 447738c8a9a5SSteve French rsp->OutputBufferLength = 447838c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_alignment_info)); 447938c8a9a5SSteve French } 448038c8a9a5SSteve French 448138c8a9a5SSteve French static int get_file_all_info(struct ksmbd_work *work, 448238c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 448338c8a9a5SSteve French struct ksmbd_file *fp, 448438c8a9a5SSteve French void *rsp_org) 448538c8a9a5SSteve French { 448638c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 448738c8a9a5SSteve French struct smb2_file_all_info *file_info; 448838c8a9a5SSteve French unsigned int delete_pending; 448938c8a9a5SSteve French struct inode *inode; 449038c8a9a5SSteve French struct kstat stat; 449138c8a9a5SSteve French int conv_len; 449238c8a9a5SSteve French char *filename; 449338c8a9a5SSteve French u64 time; 449438c8a9a5SSteve French 449538c8a9a5SSteve French if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { 449638c8a9a5SSteve French ksmbd_debug(SMB, "no right to read the attributes : 0x%x\n", 449738c8a9a5SSteve French fp->daccess); 449838c8a9a5SSteve French return -EACCES; 449938c8a9a5SSteve French } 450038c8a9a5SSteve French 450138c8a9a5SSteve French filename = convert_to_nt_pathname(work->tcon->share_conf, &fp->filp->f_path); 450238c8a9a5SSteve French if (IS_ERR(filename)) 450338c8a9a5SSteve French return PTR_ERR(filename); 450438c8a9a5SSteve French 450538c8a9a5SSteve French inode = file_inode(fp->filp); 45060d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, inode, &stat); 450738c8a9a5SSteve French 450838c8a9a5SSteve French ksmbd_debug(SMB, "filename = %s\n", filename); 450938c8a9a5SSteve French delete_pending = ksmbd_inode_pending_delete(fp); 451038c8a9a5SSteve French file_info = (struct smb2_file_all_info *)rsp->Buffer; 451138c8a9a5SSteve French 451238c8a9a5SSteve French file_info->CreationTime = cpu_to_le64(fp->create_time); 451338c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.atime); 451438c8a9a5SSteve French file_info->LastAccessTime = cpu_to_le64(time); 451538c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.mtime); 451638c8a9a5SSteve French file_info->LastWriteTime = cpu_to_le64(time); 451738c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.ctime); 451838c8a9a5SSteve French file_info->ChangeTime = cpu_to_le64(time); 451938c8a9a5SSteve French file_info->Attributes = fp->f_ci->m_fattr; 452038c8a9a5SSteve French file_info->Pad1 = 0; 452138c8a9a5SSteve French file_info->AllocationSize = 45226cc2268fSNamjae Jeon cpu_to_le64(inode->i_blocks << 9); 452338c8a9a5SSteve French file_info->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); 452438c8a9a5SSteve French file_info->NumberOfLinks = 452538c8a9a5SSteve French cpu_to_le32(get_nlink(&stat) - delete_pending); 452638c8a9a5SSteve French file_info->DeletePending = delete_pending; 452738c8a9a5SSteve French file_info->Directory = S_ISDIR(stat.mode) ? 1 : 0; 452838c8a9a5SSteve French file_info->Pad2 = 0; 452938c8a9a5SSteve French file_info->IndexNumber = cpu_to_le64(stat.ino); 453038c8a9a5SSteve French file_info->EASize = 0; 453138c8a9a5SSteve French file_info->AccessFlags = fp->daccess; 453238c8a9a5SSteve French file_info->CurrentByteOffset = cpu_to_le64(fp->filp->f_pos); 453338c8a9a5SSteve French file_info->Mode = fp->coption; 453438c8a9a5SSteve French file_info->AlignmentRequirement = 0; 453538c8a9a5SSteve French conv_len = smbConvertToUTF16((__le16 *)file_info->FileName, filename, 453638c8a9a5SSteve French PATH_MAX, conn->local_nls, 0); 453738c8a9a5SSteve French conv_len *= 2; 453838c8a9a5SSteve French file_info->FileNameLength = cpu_to_le32(conv_len); 453938c8a9a5SSteve French rsp->OutputBufferLength = 454038c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_all_info) + conv_len - 1); 454138c8a9a5SSteve French kfree(filename); 454238c8a9a5SSteve French return 0; 454338c8a9a5SSteve French } 454438c8a9a5SSteve French 454538c8a9a5SSteve French static void get_file_alternate_info(struct ksmbd_work *work, 454638c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 454738c8a9a5SSteve French struct ksmbd_file *fp, 454838c8a9a5SSteve French void *rsp_org) 454938c8a9a5SSteve French { 455038c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 455138c8a9a5SSteve French struct smb2_file_alt_name_info *file_info; 455238c8a9a5SSteve French struct dentry *dentry = fp->filp->f_path.dentry; 455338c8a9a5SSteve French int conv_len; 455438c8a9a5SSteve French 455538c8a9a5SSteve French spin_lock(&dentry->d_lock); 455638c8a9a5SSteve French file_info = (struct smb2_file_alt_name_info *)rsp->Buffer; 455738c8a9a5SSteve French conv_len = ksmbd_extract_shortname(conn, 455838c8a9a5SSteve French dentry->d_name.name, 455938c8a9a5SSteve French file_info->FileName); 456038c8a9a5SSteve French spin_unlock(&dentry->d_lock); 456138c8a9a5SSteve French file_info->FileNameLength = cpu_to_le32(conv_len); 456238c8a9a5SSteve French rsp->OutputBufferLength = 456338c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_alt_name_info) + conv_len); 456438c8a9a5SSteve French } 456538c8a9a5SSteve French 456638c8a9a5SSteve French static void get_file_stream_info(struct ksmbd_work *work, 456738c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 456838c8a9a5SSteve French struct ksmbd_file *fp, 456938c8a9a5SSteve French void *rsp_org) 457038c8a9a5SSteve French { 457138c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 457238c8a9a5SSteve French struct smb2_file_stream_info *file_info; 457338c8a9a5SSteve French char *stream_name, *xattr_list = NULL, *stream_buf; 457438c8a9a5SSteve French struct kstat stat; 457538c8a9a5SSteve French const struct path *path = &fp->filp->f_path; 457638c8a9a5SSteve French ssize_t xattr_list_len; 457738c8a9a5SSteve French int nbytes = 0, streamlen, stream_name_len, next, idx = 0; 457838c8a9a5SSteve French int buf_free_len; 457938c8a9a5SSteve French struct smb2_query_info_req *req = ksmbd_req_buf_next(work); 458038c8a9a5SSteve French 45810d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, 45820d72b928SJeff Layton file_inode(fp->filp), &stat); 458338c8a9a5SSteve French file_info = (struct smb2_file_stream_info *)rsp->Buffer; 458438c8a9a5SSteve French 458538c8a9a5SSteve French buf_free_len = 458638c8a9a5SSteve French smb2_calc_max_out_buf_len(work, 8, 458738c8a9a5SSteve French le32_to_cpu(req->OutputBufferLength)); 458838c8a9a5SSteve French if (buf_free_len < 0) 458938c8a9a5SSteve French goto out; 459038c8a9a5SSteve French 459138c8a9a5SSteve French xattr_list_len = ksmbd_vfs_listxattr(path->dentry, &xattr_list); 459238c8a9a5SSteve French if (xattr_list_len < 0) { 459338c8a9a5SSteve French goto out; 459438c8a9a5SSteve French } else if (!xattr_list_len) { 459538c8a9a5SSteve French ksmbd_debug(SMB, "empty xattr in the file\n"); 459638c8a9a5SSteve French goto out; 459738c8a9a5SSteve French } 459838c8a9a5SSteve French 459938c8a9a5SSteve French while (idx < xattr_list_len) { 460038c8a9a5SSteve French stream_name = xattr_list + idx; 460138c8a9a5SSteve French streamlen = strlen(stream_name); 460238c8a9a5SSteve French idx += streamlen + 1; 460338c8a9a5SSteve French 460438c8a9a5SSteve French ksmbd_debug(SMB, "%s, len %d\n", stream_name, streamlen); 460538c8a9a5SSteve French 460638c8a9a5SSteve French if (strncmp(&stream_name[XATTR_USER_PREFIX_LEN], 460738c8a9a5SSteve French STREAM_PREFIX, STREAM_PREFIX_LEN)) 460838c8a9a5SSteve French continue; 460938c8a9a5SSteve French 461038c8a9a5SSteve French stream_name_len = streamlen - (XATTR_USER_PREFIX_LEN + 461138c8a9a5SSteve French STREAM_PREFIX_LEN); 461238c8a9a5SSteve French streamlen = stream_name_len; 461338c8a9a5SSteve French 461438c8a9a5SSteve French /* plus : size */ 461538c8a9a5SSteve French streamlen += 1; 461638c8a9a5SSteve French stream_buf = kmalloc(streamlen + 1, GFP_KERNEL); 461738c8a9a5SSteve French if (!stream_buf) 461838c8a9a5SSteve French break; 461938c8a9a5SSteve French 462038c8a9a5SSteve French streamlen = snprintf(stream_buf, streamlen + 1, 462138c8a9a5SSteve French ":%s", &stream_name[XATTR_NAME_STREAM_LEN]); 462238c8a9a5SSteve French 462338c8a9a5SSteve French next = sizeof(struct smb2_file_stream_info) + streamlen * 2; 462438c8a9a5SSteve French if (next > buf_free_len) { 462538c8a9a5SSteve French kfree(stream_buf); 462638c8a9a5SSteve French break; 462738c8a9a5SSteve French } 462838c8a9a5SSteve French 462938c8a9a5SSteve French file_info = (struct smb2_file_stream_info *)&rsp->Buffer[nbytes]; 463038c8a9a5SSteve French streamlen = smbConvertToUTF16((__le16 *)file_info->StreamName, 463138c8a9a5SSteve French stream_buf, streamlen, 463238c8a9a5SSteve French conn->local_nls, 0); 463338c8a9a5SSteve French streamlen *= 2; 463438c8a9a5SSteve French kfree(stream_buf); 463538c8a9a5SSteve French file_info->StreamNameLength = cpu_to_le32(streamlen); 463638c8a9a5SSteve French file_info->StreamSize = cpu_to_le64(stream_name_len); 463738c8a9a5SSteve French file_info->StreamAllocationSize = cpu_to_le64(stream_name_len); 463838c8a9a5SSteve French 463938c8a9a5SSteve French nbytes += next; 464038c8a9a5SSteve French buf_free_len -= next; 464138c8a9a5SSteve French file_info->NextEntryOffset = cpu_to_le32(next); 464238c8a9a5SSteve French } 464338c8a9a5SSteve French 464438c8a9a5SSteve French out: 464538c8a9a5SSteve French if (!S_ISDIR(stat.mode) && 464638c8a9a5SSteve French buf_free_len >= sizeof(struct smb2_file_stream_info) + 7 * 2) { 464738c8a9a5SSteve French file_info = (struct smb2_file_stream_info *) 464838c8a9a5SSteve French &rsp->Buffer[nbytes]; 464938c8a9a5SSteve French streamlen = smbConvertToUTF16((__le16 *)file_info->StreamName, 465038c8a9a5SSteve French "::$DATA", 7, conn->local_nls, 0); 465138c8a9a5SSteve French streamlen *= 2; 465238c8a9a5SSteve French file_info->StreamNameLength = cpu_to_le32(streamlen); 465338c8a9a5SSteve French file_info->StreamSize = cpu_to_le64(stat.size); 465438c8a9a5SSteve French file_info->StreamAllocationSize = cpu_to_le64(stat.blocks << 9); 465538c8a9a5SSteve French nbytes += sizeof(struct smb2_file_stream_info) + streamlen; 465638c8a9a5SSteve French } 465738c8a9a5SSteve French 465838c8a9a5SSteve French /* last entry offset should be 0 */ 465938c8a9a5SSteve French file_info->NextEntryOffset = 0; 466038c8a9a5SSteve French kvfree(xattr_list); 466138c8a9a5SSteve French 466238c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(nbytes); 466338c8a9a5SSteve French } 466438c8a9a5SSteve French 466538c8a9a5SSteve French static void get_file_internal_info(struct smb2_query_info_rsp *rsp, 466638c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 466738c8a9a5SSteve French { 466838c8a9a5SSteve French struct smb2_file_internal_info *file_info; 466938c8a9a5SSteve French struct kstat stat; 467038c8a9a5SSteve French 46710d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, 46720d72b928SJeff Layton file_inode(fp->filp), &stat); 467338c8a9a5SSteve French file_info = (struct smb2_file_internal_info *)rsp->Buffer; 467438c8a9a5SSteve French file_info->IndexNumber = cpu_to_le64(stat.ino); 467538c8a9a5SSteve French rsp->OutputBufferLength = 467638c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_internal_info)); 467738c8a9a5SSteve French } 467838c8a9a5SSteve French 467938c8a9a5SSteve French static int get_file_network_open_info(struct smb2_query_info_rsp *rsp, 468038c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 468138c8a9a5SSteve French { 468238c8a9a5SSteve French struct smb2_file_ntwrk_info *file_info; 468338c8a9a5SSteve French struct inode *inode; 468438c8a9a5SSteve French struct kstat stat; 468538c8a9a5SSteve French u64 time; 468638c8a9a5SSteve French 468738c8a9a5SSteve French if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { 468838c8a9a5SSteve French pr_err("no right to read the attributes : 0x%x\n", 468938c8a9a5SSteve French fp->daccess); 469038c8a9a5SSteve French return -EACCES; 469138c8a9a5SSteve French } 469238c8a9a5SSteve French 469338c8a9a5SSteve French file_info = (struct smb2_file_ntwrk_info *)rsp->Buffer; 469438c8a9a5SSteve French 469538c8a9a5SSteve French inode = file_inode(fp->filp); 46960d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, inode, &stat); 469738c8a9a5SSteve French 469838c8a9a5SSteve French file_info->CreationTime = cpu_to_le64(fp->create_time); 469938c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.atime); 470038c8a9a5SSteve French file_info->LastAccessTime = cpu_to_le64(time); 470138c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.mtime); 470238c8a9a5SSteve French file_info->LastWriteTime = cpu_to_le64(time); 470338c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.ctime); 470438c8a9a5SSteve French file_info->ChangeTime = cpu_to_le64(time); 470538c8a9a5SSteve French file_info->Attributes = fp->f_ci->m_fattr; 470638c8a9a5SSteve French file_info->AllocationSize = 47076cc2268fSNamjae Jeon cpu_to_le64(inode->i_blocks << 9); 470838c8a9a5SSteve French file_info->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); 470938c8a9a5SSteve French file_info->Reserved = cpu_to_le32(0); 471038c8a9a5SSteve French rsp->OutputBufferLength = 471138c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_ntwrk_info)); 471238c8a9a5SSteve French return 0; 471338c8a9a5SSteve French } 471438c8a9a5SSteve French 471538c8a9a5SSteve French static void get_file_ea_info(struct smb2_query_info_rsp *rsp, void *rsp_org) 471638c8a9a5SSteve French { 471738c8a9a5SSteve French struct smb2_file_ea_info *file_info; 471838c8a9a5SSteve French 471938c8a9a5SSteve French file_info = (struct smb2_file_ea_info *)rsp->Buffer; 472038c8a9a5SSteve French file_info->EASize = 0; 472138c8a9a5SSteve French rsp->OutputBufferLength = 472238c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_ea_info)); 472338c8a9a5SSteve French } 472438c8a9a5SSteve French 472538c8a9a5SSteve French static void get_file_position_info(struct smb2_query_info_rsp *rsp, 472638c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 472738c8a9a5SSteve French { 472838c8a9a5SSteve French struct smb2_file_pos_info *file_info; 472938c8a9a5SSteve French 473038c8a9a5SSteve French file_info = (struct smb2_file_pos_info *)rsp->Buffer; 473138c8a9a5SSteve French file_info->CurrentByteOffset = cpu_to_le64(fp->filp->f_pos); 473238c8a9a5SSteve French rsp->OutputBufferLength = 473338c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_pos_info)); 473438c8a9a5SSteve French } 473538c8a9a5SSteve French 473638c8a9a5SSteve French static void get_file_mode_info(struct smb2_query_info_rsp *rsp, 473738c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 473838c8a9a5SSteve French { 473938c8a9a5SSteve French struct smb2_file_mode_info *file_info; 474038c8a9a5SSteve French 474138c8a9a5SSteve French file_info = (struct smb2_file_mode_info *)rsp->Buffer; 474238c8a9a5SSteve French file_info->Mode = fp->coption & FILE_MODE_INFO_MASK; 474338c8a9a5SSteve French rsp->OutputBufferLength = 474438c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_mode_info)); 474538c8a9a5SSteve French } 474638c8a9a5SSteve French 474738c8a9a5SSteve French static void get_file_compression_info(struct smb2_query_info_rsp *rsp, 474838c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 474938c8a9a5SSteve French { 475038c8a9a5SSteve French struct smb2_file_comp_info *file_info; 475138c8a9a5SSteve French struct kstat stat; 475238c8a9a5SSteve French 47530d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, 47540d72b928SJeff Layton file_inode(fp->filp), &stat); 475538c8a9a5SSteve French 475638c8a9a5SSteve French file_info = (struct smb2_file_comp_info *)rsp->Buffer; 475738c8a9a5SSteve French file_info->CompressedFileSize = cpu_to_le64(stat.blocks << 9); 475838c8a9a5SSteve French file_info->CompressionFormat = COMPRESSION_FORMAT_NONE; 475938c8a9a5SSteve French file_info->CompressionUnitShift = 0; 476038c8a9a5SSteve French file_info->ChunkShift = 0; 476138c8a9a5SSteve French file_info->ClusterShift = 0; 476238c8a9a5SSteve French memset(&file_info->Reserved[0], 0, 3); 476338c8a9a5SSteve French 476438c8a9a5SSteve French rsp->OutputBufferLength = 476538c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_comp_info)); 476638c8a9a5SSteve French } 476738c8a9a5SSteve French 476838c8a9a5SSteve French static int get_file_attribute_tag_info(struct smb2_query_info_rsp *rsp, 476938c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 477038c8a9a5SSteve French { 477138c8a9a5SSteve French struct smb2_file_attr_tag_info *file_info; 477238c8a9a5SSteve French 477338c8a9a5SSteve French if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { 477438c8a9a5SSteve French pr_err("no right to read the attributes : 0x%x\n", 477538c8a9a5SSteve French fp->daccess); 477638c8a9a5SSteve French return -EACCES; 477738c8a9a5SSteve French } 477838c8a9a5SSteve French 477938c8a9a5SSteve French file_info = (struct smb2_file_attr_tag_info *)rsp->Buffer; 478038c8a9a5SSteve French file_info->FileAttributes = fp->f_ci->m_fattr; 478138c8a9a5SSteve French file_info->ReparseTag = 0; 478238c8a9a5SSteve French rsp->OutputBufferLength = 478338c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_attr_tag_info)); 478438c8a9a5SSteve French return 0; 478538c8a9a5SSteve French } 478638c8a9a5SSteve French 4787e2b76ab8SNamjae Jeon static void find_file_posix_info(struct smb2_query_info_rsp *rsp, 478838c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 478938c8a9a5SSteve French { 479038c8a9a5SSteve French struct smb311_posix_qinfo *file_info; 479138c8a9a5SSteve French struct inode *inode = file_inode(fp->filp); 479238c8a9a5SSteve French struct mnt_idmap *idmap = file_mnt_idmap(fp->filp); 479338c8a9a5SSteve French vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode); 479438c8a9a5SSteve French vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode); 479538c8a9a5SSteve French u64 time; 479638c8a9a5SSteve French int out_buf_len = sizeof(struct smb311_posix_qinfo) + 32; 479738c8a9a5SSteve French 479838c8a9a5SSteve French file_info = (struct smb311_posix_qinfo *)rsp->Buffer; 479938c8a9a5SSteve French file_info->CreationTime = cpu_to_le64(fp->create_time); 480038c8a9a5SSteve French time = ksmbd_UnixTimeToNT(inode->i_atime); 480138c8a9a5SSteve French file_info->LastAccessTime = cpu_to_le64(time); 480238c8a9a5SSteve French time = ksmbd_UnixTimeToNT(inode->i_mtime); 480338c8a9a5SSteve French file_info->LastWriteTime = cpu_to_le64(time); 480494487653SJeff Layton time = ksmbd_UnixTimeToNT(inode_get_ctime(inode)); 480538c8a9a5SSteve French file_info->ChangeTime = cpu_to_le64(time); 480638c8a9a5SSteve French file_info->DosAttributes = fp->f_ci->m_fattr; 480738c8a9a5SSteve French file_info->Inode = cpu_to_le64(inode->i_ino); 480838c8a9a5SSteve French file_info->EndOfFile = cpu_to_le64(inode->i_size); 480938c8a9a5SSteve French file_info->AllocationSize = cpu_to_le64(inode->i_blocks << 9); 481038c8a9a5SSteve French file_info->HardLinks = cpu_to_le32(inode->i_nlink); 481138c8a9a5SSteve French file_info->Mode = cpu_to_le32(inode->i_mode & 0777); 481238c8a9a5SSteve French file_info->DeviceId = cpu_to_le32(inode->i_rdev); 481338c8a9a5SSteve French 481438c8a9a5SSteve French /* 481538c8a9a5SSteve French * Sids(32) contain two sids(Domain sid(16), UNIX group sid(16)). 481638c8a9a5SSteve French * UNIX sid(16) = revision(1) + num_subauth(1) + authority(6) + 481738c8a9a5SSteve French * sub_auth(4 * 1(num_subauth)) + RID(4). 481838c8a9a5SSteve French */ 481938c8a9a5SSteve French id_to_sid(from_kuid_munged(&init_user_ns, vfsuid_into_kuid(vfsuid)), 482038c8a9a5SSteve French SIDUNIX_USER, (struct smb_sid *)&file_info->Sids[0]); 482138c8a9a5SSteve French id_to_sid(from_kgid_munged(&init_user_ns, vfsgid_into_kgid(vfsgid)), 482238c8a9a5SSteve French SIDUNIX_GROUP, (struct smb_sid *)&file_info->Sids[16]); 482338c8a9a5SSteve French 482438c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(out_buf_len); 482538c8a9a5SSteve French } 482638c8a9a5SSteve French 482738c8a9a5SSteve French static int smb2_get_info_file(struct ksmbd_work *work, 482838c8a9a5SSteve French struct smb2_query_info_req *req, 482938c8a9a5SSteve French struct smb2_query_info_rsp *rsp) 483038c8a9a5SSteve French { 483138c8a9a5SSteve French struct ksmbd_file *fp; 483238c8a9a5SSteve French int fileinfoclass = 0; 483338c8a9a5SSteve French int rc = 0; 483438c8a9a5SSteve French unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; 483538c8a9a5SSteve French 483638c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 483738c8a9a5SSteve French KSMBD_SHARE_FLAG_PIPE)) { 483838c8a9a5SSteve French /* smb2 info file called for pipe */ 483938c8a9a5SSteve French return smb2_get_info_file_pipe(work->sess, req, rsp, 484038c8a9a5SSteve French work->response_buf); 484138c8a9a5SSteve French } 484238c8a9a5SSteve French 484338c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) { 484438c8a9a5SSteve French if (!has_file_id(req->VolatileFileId)) { 484538c8a9a5SSteve French ksmbd_debug(SMB, "Compound request set FID = %llu\n", 484638c8a9a5SSteve French work->compound_fid); 484738c8a9a5SSteve French id = work->compound_fid; 484838c8a9a5SSteve French pid = work->compound_pfid; 484938c8a9a5SSteve French } 485038c8a9a5SSteve French } 485138c8a9a5SSteve French 485238c8a9a5SSteve French if (!has_file_id(id)) { 485338c8a9a5SSteve French id = req->VolatileFileId; 485438c8a9a5SSteve French pid = req->PersistentFileId; 485538c8a9a5SSteve French } 485638c8a9a5SSteve French 485738c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, id, pid); 485838c8a9a5SSteve French if (!fp) 485938c8a9a5SSteve French return -ENOENT; 486038c8a9a5SSteve French 486138c8a9a5SSteve French fileinfoclass = req->FileInfoClass; 486238c8a9a5SSteve French 486338c8a9a5SSteve French switch (fileinfoclass) { 486438c8a9a5SSteve French case FILE_ACCESS_INFORMATION: 486538c8a9a5SSteve French get_file_access_info(rsp, fp, work->response_buf); 486638c8a9a5SSteve French break; 486738c8a9a5SSteve French 486838c8a9a5SSteve French case FILE_BASIC_INFORMATION: 486938c8a9a5SSteve French rc = get_file_basic_info(rsp, fp, work->response_buf); 487038c8a9a5SSteve French break; 487138c8a9a5SSteve French 487238c8a9a5SSteve French case FILE_STANDARD_INFORMATION: 487338c8a9a5SSteve French get_file_standard_info(rsp, fp, work->response_buf); 487438c8a9a5SSteve French break; 487538c8a9a5SSteve French 487638c8a9a5SSteve French case FILE_ALIGNMENT_INFORMATION: 487738c8a9a5SSteve French get_file_alignment_info(rsp, work->response_buf); 487838c8a9a5SSteve French break; 487938c8a9a5SSteve French 488038c8a9a5SSteve French case FILE_ALL_INFORMATION: 488138c8a9a5SSteve French rc = get_file_all_info(work, rsp, fp, work->response_buf); 488238c8a9a5SSteve French break; 488338c8a9a5SSteve French 488438c8a9a5SSteve French case FILE_ALTERNATE_NAME_INFORMATION: 488538c8a9a5SSteve French get_file_alternate_info(work, rsp, fp, work->response_buf); 488638c8a9a5SSteve French break; 488738c8a9a5SSteve French 488838c8a9a5SSteve French case FILE_STREAM_INFORMATION: 488938c8a9a5SSteve French get_file_stream_info(work, rsp, fp, work->response_buf); 489038c8a9a5SSteve French break; 489138c8a9a5SSteve French 489238c8a9a5SSteve French case FILE_INTERNAL_INFORMATION: 489338c8a9a5SSteve French get_file_internal_info(rsp, fp, work->response_buf); 489438c8a9a5SSteve French break; 489538c8a9a5SSteve French 489638c8a9a5SSteve French case FILE_NETWORK_OPEN_INFORMATION: 489738c8a9a5SSteve French rc = get_file_network_open_info(rsp, fp, work->response_buf); 489838c8a9a5SSteve French break; 489938c8a9a5SSteve French 490038c8a9a5SSteve French case FILE_EA_INFORMATION: 490138c8a9a5SSteve French get_file_ea_info(rsp, work->response_buf); 490238c8a9a5SSteve French break; 490338c8a9a5SSteve French 490438c8a9a5SSteve French case FILE_FULL_EA_INFORMATION: 490538c8a9a5SSteve French rc = smb2_get_ea(work, fp, req, rsp, work->response_buf); 490638c8a9a5SSteve French break; 490738c8a9a5SSteve French 490838c8a9a5SSteve French case FILE_POSITION_INFORMATION: 490938c8a9a5SSteve French get_file_position_info(rsp, fp, work->response_buf); 491038c8a9a5SSteve French break; 491138c8a9a5SSteve French 491238c8a9a5SSteve French case FILE_MODE_INFORMATION: 491338c8a9a5SSteve French get_file_mode_info(rsp, fp, work->response_buf); 491438c8a9a5SSteve French break; 491538c8a9a5SSteve French 491638c8a9a5SSteve French case FILE_COMPRESSION_INFORMATION: 491738c8a9a5SSteve French get_file_compression_info(rsp, fp, work->response_buf); 491838c8a9a5SSteve French break; 491938c8a9a5SSteve French 492038c8a9a5SSteve French case FILE_ATTRIBUTE_TAG_INFORMATION: 492138c8a9a5SSteve French rc = get_file_attribute_tag_info(rsp, fp, work->response_buf); 492238c8a9a5SSteve French break; 492338c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 492438c8a9a5SSteve French if (!work->tcon->posix_extensions) { 492538c8a9a5SSteve French pr_err("client doesn't negotiate with SMB3.1.1 POSIX Extensions\n"); 492638c8a9a5SSteve French rc = -EOPNOTSUPP; 492738c8a9a5SSteve French } else { 4928e2b76ab8SNamjae Jeon find_file_posix_info(rsp, fp, work->response_buf); 492938c8a9a5SSteve French } 493038c8a9a5SSteve French break; 493138c8a9a5SSteve French default: 493238c8a9a5SSteve French ksmbd_debug(SMB, "fileinfoclass %d not supported yet\n", 493338c8a9a5SSteve French fileinfoclass); 493438c8a9a5SSteve French rc = -EOPNOTSUPP; 493538c8a9a5SSteve French } 493638c8a9a5SSteve French if (!rc) 493738c8a9a5SSteve French rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), 4938e2b76ab8SNamjae Jeon rsp, work->response_buf); 493938c8a9a5SSteve French ksmbd_fd_put(work, fp); 494038c8a9a5SSteve French return rc; 494138c8a9a5SSteve French } 494238c8a9a5SSteve French 494338c8a9a5SSteve French static int smb2_get_info_filesystem(struct ksmbd_work *work, 494438c8a9a5SSteve French struct smb2_query_info_req *req, 494538c8a9a5SSteve French struct smb2_query_info_rsp *rsp) 494638c8a9a5SSteve French { 494738c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 494838c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 494938c8a9a5SSteve French struct ksmbd_share_config *share = work->tcon->share_conf; 495038c8a9a5SSteve French int fsinfoclass = 0; 495138c8a9a5SSteve French struct kstatfs stfs; 495238c8a9a5SSteve French struct path path; 495338c8a9a5SSteve French int rc = 0, len; 495438c8a9a5SSteve French 495538c8a9a5SSteve French if (!share->path) 495638c8a9a5SSteve French return -EIO; 495738c8a9a5SSteve French 495838c8a9a5SSteve French rc = kern_path(share->path, LOOKUP_NO_SYMLINKS, &path); 495938c8a9a5SSteve French if (rc) { 496038c8a9a5SSteve French pr_err("cannot create vfs path\n"); 496138c8a9a5SSteve French return -EIO; 496238c8a9a5SSteve French } 496338c8a9a5SSteve French 496438c8a9a5SSteve French rc = vfs_statfs(&path, &stfs); 496538c8a9a5SSteve French if (rc) { 496638c8a9a5SSteve French pr_err("cannot do stat of path %s\n", share->path); 496738c8a9a5SSteve French path_put(&path); 496838c8a9a5SSteve French return -EIO; 496938c8a9a5SSteve French } 497038c8a9a5SSteve French 497138c8a9a5SSteve French fsinfoclass = req->FileInfoClass; 497238c8a9a5SSteve French 497338c8a9a5SSteve French switch (fsinfoclass) { 497438c8a9a5SSteve French case FS_DEVICE_INFORMATION: 497538c8a9a5SSteve French { 497638c8a9a5SSteve French struct filesystem_device_info *info; 497738c8a9a5SSteve French 497838c8a9a5SSteve French info = (struct filesystem_device_info *)rsp->Buffer; 497938c8a9a5SSteve French 498038c8a9a5SSteve French info->DeviceType = cpu_to_le32(stfs.f_type); 498138c8a9a5SSteve French info->DeviceCharacteristics = cpu_to_le32(0x00000020); 498238c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(8); 498338c8a9a5SSteve French break; 498438c8a9a5SSteve French } 498538c8a9a5SSteve French case FS_ATTRIBUTE_INFORMATION: 498638c8a9a5SSteve French { 498738c8a9a5SSteve French struct filesystem_attribute_info *info; 498838c8a9a5SSteve French size_t sz; 498938c8a9a5SSteve French 499038c8a9a5SSteve French info = (struct filesystem_attribute_info *)rsp->Buffer; 499138c8a9a5SSteve French info->Attributes = cpu_to_le32(FILE_SUPPORTS_OBJECT_IDS | 499238c8a9a5SSteve French FILE_PERSISTENT_ACLS | 499338c8a9a5SSteve French FILE_UNICODE_ON_DISK | 499438c8a9a5SSteve French FILE_CASE_PRESERVED_NAMES | 499538c8a9a5SSteve French FILE_CASE_SENSITIVE_SEARCH | 499638c8a9a5SSteve French FILE_SUPPORTS_BLOCK_REFCOUNTING); 499738c8a9a5SSteve French 499838c8a9a5SSteve French info->Attributes |= cpu_to_le32(server_conf.share_fake_fscaps); 499938c8a9a5SSteve French 500038c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 500138c8a9a5SSteve French KSMBD_SHARE_FLAG_STREAMS)) 500238c8a9a5SSteve French info->Attributes |= cpu_to_le32(FILE_NAMED_STREAMS); 500338c8a9a5SSteve French 500438c8a9a5SSteve French info->MaxPathNameComponentLength = cpu_to_le32(stfs.f_namelen); 500538c8a9a5SSteve French len = smbConvertToUTF16((__le16 *)info->FileSystemName, 500638c8a9a5SSteve French "NTFS", PATH_MAX, conn->local_nls, 0); 500738c8a9a5SSteve French len = len * 2; 500838c8a9a5SSteve French info->FileSystemNameLen = cpu_to_le32(len); 500938c8a9a5SSteve French sz = sizeof(struct filesystem_attribute_info) - 2 + len; 501038c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(sz); 501138c8a9a5SSteve French break; 501238c8a9a5SSteve French } 501338c8a9a5SSteve French case FS_VOLUME_INFORMATION: 501438c8a9a5SSteve French { 501538c8a9a5SSteve French struct filesystem_vol_info *info; 501638c8a9a5SSteve French size_t sz; 501738c8a9a5SSteve French unsigned int serial_crc = 0; 501838c8a9a5SSteve French 501938c8a9a5SSteve French info = (struct filesystem_vol_info *)(rsp->Buffer); 502038c8a9a5SSteve French info->VolumeCreationTime = 0; 502138c8a9a5SSteve French serial_crc = crc32_le(serial_crc, share->name, 502238c8a9a5SSteve French strlen(share->name)); 502338c8a9a5SSteve French serial_crc = crc32_le(serial_crc, share->path, 502438c8a9a5SSteve French strlen(share->path)); 502538c8a9a5SSteve French serial_crc = crc32_le(serial_crc, ksmbd_netbios_name(), 502638c8a9a5SSteve French strlen(ksmbd_netbios_name())); 502738c8a9a5SSteve French /* Taking dummy value of serial number*/ 502838c8a9a5SSteve French info->SerialNumber = cpu_to_le32(serial_crc); 502938c8a9a5SSteve French len = smbConvertToUTF16((__le16 *)info->VolumeLabel, 503038c8a9a5SSteve French share->name, PATH_MAX, 503138c8a9a5SSteve French conn->local_nls, 0); 503238c8a9a5SSteve French len = len * 2; 503338c8a9a5SSteve French info->VolumeLabelSize = cpu_to_le32(len); 503438c8a9a5SSteve French info->Reserved = 0; 503538c8a9a5SSteve French sz = sizeof(struct filesystem_vol_info) - 2 + len; 503638c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(sz); 503738c8a9a5SSteve French break; 503838c8a9a5SSteve French } 503938c8a9a5SSteve French case FS_SIZE_INFORMATION: 504038c8a9a5SSteve French { 504138c8a9a5SSteve French struct filesystem_info *info; 504238c8a9a5SSteve French 504338c8a9a5SSteve French info = (struct filesystem_info *)(rsp->Buffer); 504438c8a9a5SSteve French info->TotalAllocationUnits = cpu_to_le64(stfs.f_blocks); 504538c8a9a5SSteve French info->FreeAllocationUnits = cpu_to_le64(stfs.f_bfree); 504638c8a9a5SSteve French info->SectorsPerAllocationUnit = cpu_to_le32(1); 504738c8a9a5SSteve French info->BytesPerSector = cpu_to_le32(stfs.f_bsize); 504838c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(24); 504938c8a9a5SSteve French break; 505038c8a9a5SSteve French } 505138c8a9a5SSteve French case FS_FULL_SIZE_INFORMATION: 505238c8a9a5SSteve French { 505338c8a9a5SSteve French struct smb2_fs_full_size_info *info; 505438c8a9a5SSteve French 505538c8a9a5SSteve French info = (struct smb2_fs_full_size_info *)(rsp->Buffer); 505638c8a9a5SSteve French info->TotalAllocationUnits = cpu_to_le64(stfs.f_blocks); 505738c8a9a5SSteve French info->CallerAvailableAllocationUnits = 505838c8a9a5SSteve French cpu_to_le64(stfs.f_bavail); 505938c8a9a5SSteve French info->ActualAvailableAllocationUnits = 506038c8a9a5SSteve French cpu_to_le64(stfs.f_bfree); 506138c8a9a5SSteve French info->SectorsPerAllocationUnit = cpu_to_le32(1); 506238c8a9a5SSteve French info->BytesPerSector = cpu_to_le32(stfs.f_bsize); 506338c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(32); 506438c8a9a5SSteve French break; 506538c8a9a5SSteve French } 506638c8a9a5SSteve French case FS_OBJECT_ID_INFORMATION: 506738c8a9a5SSteve French { 506838c8a9a5SSteve French struct object_id_info *info; 506938c8a9a5SSteve French 507038c8a9a5SSteve French info = (struct object_id_info *)(rsp->Buffer); 507138c8a9a5SSteve French 507238c8a9a5SSteve French if (!user_guest(sess->user)) 507338c8a9a5SSteve French memcpy(info->objid, user_passkey(sess->user), 16); 507438c8a9a5SSteve French else 507538c8a9a5SSteve French memset(info->objid, 0, 16); 507638c8a9a5SSteve French 507738c8a9a5SSteve French info->extended_info.magic = cpu_to_le32(EXTENDED_INFO_MAGIC); 507838c8a9a5SSteve French info->extended_info.version = cpu_to_le32(1); 507938c8a9a5SSteve French info->extended_info.release = cpu_to_le32(1); 508038c8a9a5SSteve French info->extended_info.rel_date = 0; 508138c8a9a5SSteve French memcpy(info->extended_info.version_string, "1.1.0", strlen("1.1.0")); 508238c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(64); 508338c8a9a5SSteve French break; 508438c8a9a5SSteve French } 508538c8a9a5SSteve French case FS_SECTOR_SIZE_INFORMATION: 508638c8a9a5SSteve French { 508738c8a9a5SSteve French struct smb3_fs_ss_info *info; 508838c8a9a5SSteve French unsigned int sector_size = 508938c8a9a5SSteve French min_t(unsigned int, path.mnt->mnt_sb->s_blocksize, 4096); 509038c8a9a5SSteve French 509138c8a9a5SSteve French info = (struct smb3_fs_ss_info *)(rsp->Buffer); 509238c8a9a5SSteve French 509338c8a9a5SSteve French info->LogicalBytesPerSector = cpu_to_le32(sector_size); 509438c8a9a5SSteve French info->PhysicalBytesPerSectorForAtomicity = 509538c8a9a5SSteve French cpu_to_le32(sector_size); 509638c8a9a5SSteve French info->PhysicalBytesPerSectorForPerf = cpu_to_le32(sector_size); 509738c8a9a5SSteve French info->FSEffPhysicalBytesPerSectorForAtomicity = 509838c8a9a5SSteve French cpu_to_le32(sector_size); 509938c8a9a5SSteve French info->Flags = cpu_to_le32(SSINFO_FLAGS_ALIGNED_DEVICE | 510038c8a9a5SSteve French SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE); 510138c8a9a5SSteve French info->ByteOffsetForSectorAlignment = 0; 510238c8a9a5SSteve French info->ByteOffsetForPartitionAlignment = 0; 510338c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(28); 510438c8a9a5SSteve French break; 510538c8a9a5SSteve French } 510638c8a9a5SSteve French case FS_CONTROL_INFORMATION: 510738c8a9a5SSteve French { 510838c8a9a5SSteve French /* 510938c8a9a5SSteve French * TODO : The current implementation is based on 511038c8a9a5SSteve French * test result with win7(NTFS) server. It's need to 511138c8a9a5SSteve French * modify this to get valid Quota values 511238c8a9a5SSteve French * from Linux kernel 511338c8a9a5SSteve French */ 511438c8a9a5SSteve French struct smb2_fs_control_info *info; 511538c8a9a5SSteve French 511638c8a9a5SSteve French info = (struct smb2_fs_control_info *)(rsp->Buffer); 511738c8a9a5SSteve French info->FreeSpaceStartFiltering = 0; 511838c8a9a5SSteve French info->FreeSpaceThreshold = 0; 511938c8a9a5SSteve French info->FreeSpaceStopFiltering = 0; 512038c8a9a5SSteve French info->DefaultQuotaThreshold = cpu_to_le64(SMB2_NO_FID); 512138c8a9a5SSteve French info->DefaultQuotaLimit = cpu_to_le64(SMB2_NO_FID); 512238c8a9a5SSteve French info->Padding = 0; 512338c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(48); 512438c8a9a5SSteve French break; 512538c8a9a5SSteve French } 512638c8a9a5SSteve French case FS_POSIX_INFORMATION: 512738c8a9a5SSteve French { 512838c8a9a5SSteve French struct filesystem_posix_info *info; 512938c8a9a5SSteve French 513038c8a9a5SSteve French if (!work->tcon->posix_extensions) { 513138c8a9a5SSteve French pr_err("client doesn't negotiate with SMB3.1.1 POSIX Extensions\n"); 513238c8a9a5SSteve French rc = -EOPNOTSUPP; 513338c8a9a5SSteve French } else { 513438c8a9a5SSteve French info = (struct filesystem_posix_info *)(rsp->Buffer); 513538c8a9a5SSteve French info->OptimalTransferSize = cpu_to_le32(stfs.f_bsize); 513638c8a9a5SSteve French info->BlockSize = cpu_to_le32(stfs.f_bsize); 513738c8a9a5SSteve French info->TotalBlocks = cpu_to_le64(stfs.f_blocks); 513838c8a9a5SSteve French info->BlocksAvail = cpu_to_le64(stfs.f_bfree); 513938c8a9a5SSteve French info->UserBlocksAvail = cpu_to_le64(stfs.f_bavail); 514038c8a9a5SSteve French info->TotalFileNodes = cpu_to_le64(stfs.f_files); 514138c8a9a5SSteve French info->FreeFileNodes = cpu_to_le64(stfs.f_ffree); 514238c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(56); 514338c8a9a5SSteve French } 514438c8a9a5SSteve French break; 514538c8a9a5SSteve French } 514638c8a9a5SSteve French default: 514738c8a9a5SSteve French path_put(&path); 514838c8a9a5SSteve French return -EOPNOTSUPP; 514938c8a9a5SSteve French } 515038c8a9a5SSteve French rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), 5151e2b76ab8SNamjae Jeon rsp, work->response_buf); 515238c8a9a5SSteve French path_put(&path); 515338c8a9a5SSteve French return rc; 515438c8a9a5SSteve French } 515538c8a9a5SSteve French 515638c8a9a5SSteve French static int smb2_get_info_sec(struct ksmbd_work *work, 515738c8a9a5SSteve French struct smb2_query_info_req *req, 515838c8a9a5SSteve French struct smb2_query_info_rsp *rsp) 515938c8a9a5SSteve French { 516038c8a9a5SSteve French struct ksmbd_file *fp; 516138c8a9a5SSteve French struct mnt_idmap *idmap; 516238c8a9a5SSteve French struct smb_ntsd *pntsd = (struct smb_ntsd *)rsp->Buffer, *ppntsd = NULL; 516338c8a9a5SSteve French struct smb_fattr fattr = {{0}}; 516438c8a9a5SSteve French struct inode *inode; 516538c8a9a5SSteve French __u32 secdesclen = 0; 516638c8a9a5SSteve French unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; 516738c8a9a5SSteve French int addition_info = le32_to_cpu(req->AdditionalInformation); 516838c8a9a5SSteve French int rc = 0, ppntsd_size = 0; 516938c8a9a5SSteve French 517038c8a9a5SSteve French if (addition_info & ~(OWNER_SECINFO | GROUP_SECINFO | DACL_SECINFO | 517138c8a9a5SSteve French PROTECTED_DACL_SECINFO | 517238c8a9a5SSteve French UNPROTECTED_DACL_SECINFO)) { 517338c8a9a5SSteve French ksmbd_debug(SMB, "Unsupported addition info: 0x%x)\n", 517438c8a9a5SSteve French addition_info); 517538c8a9a5SSteve French 517638c8a9a5SSteve French pntsd->revision = cpu_to_le16(1); 517738c8a9a5SSteve French pntsd->type = cpu_to_le16(SELF_RELATIVE | DACL_PROTECTED); 517838c8a9a5SSteve French pntsd->osidoffset = 0; 517938c8a9a5SSteve French pntsd->gsidoffset = 0; 518038c8a9a5SSteve French pntsd->sacloffset = 0; 518138c8a9a5SSteve French pntsd->dacloffset = 0; 518238c8a9a5SSteve French 518338c8a9a5SSteve French secdesclen = sizeof(struct smb_ntsd); 518438c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(secdesclen); 518538c8a9a5SSteve French 518638c8a9a5SSteve French return 0; 518738c8a9a5SSteve French } 518838c8a9a5SSteve French 518938c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) { 519038c8a9a5SSteve French if (!has_file_id(req->VolatileFileId)) { 519138c8a9a5SSteve French ksmbd_debug(SMB, "Compound request set FID = %llu\n", 519238c8a9a5SSteve French work->compound_fid); 519338c8a9a5SSteve French id = work->compound_fid; 519438c8a9a5SSteve French pid = work->compound_pfid; 519538c8a9a5SSteve French } 519638c8a9a5SSteve French } 519738c8a9a5SSteve French 519838c8a9a5SSteve French if (!has_file_id(id)) { 519938c8a9a5SSteve French id = req->VolatileFileId; 520038c8a9a5SSteve French pid = req->PersistentFileId; 520138c8a9a5SSteve French } 520238c8a9a5SSteve French 520338c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, id, pid); 520438c8a9a5SSteve French if (!fp) 520538c8a9a5SSteve French return -ENOENT; 520638c8a9a5SSteve French 520738c8a9a5SSteve French idmap = file_mnt_idmap(fp->filp); 520838c8a9a5SSteve French inode = file_inode(fp->filp); 520938c8a9a5SSteve French ksmbd_acls_fattr(&fattr, idmap, inode); 521038c8a9a5SSteve French 521138c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 521238c8a9a5SSteve French KSMBD_SHARE_FLAG_ACL_XATTR)) 521338c8a9a5SSteve French ppntsd_size = ksmbd_vfs_get_sd_xattr(work->conn, idmap, 521438c8a9a5SSteve French fp->filp->f_path.dentry, 521538c8a9a5SSteve French &ppntsd); 521638c8a9a5SSteve French 521738c8a9a5SSteve French /* Check if sd buffer size exceeds response buffer size */ 521838c8a9a5SSteve French if (smb2_resp_buf_len(work, 8) > ppntsd_size) 521938c8a9a5SSteve French rc = build_sec_desc(idmap, pntsd, ppntsd, ppntsd_size, 522038c8a9a5SSteve French addition_info, &secdesclen, &fattr); 522138c8a9a5SSteve French posix_acl_release(fattr.cf_acls); 522238c8a9a5SSteve French posix_acl_release(fattr.cf_dacls); 522338c8a9a5SSteve French kfree(ppntsd); 522438c8a9a5SSteve French ksmbd_fd_put(work, fp); 522538c8a9a5SSteve French if (rc) 522638c8a9a5SSteve French return rc; 522738c8a9a5SSteve French 522838c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(secdesclen); 522938c8a9a5SSteve French return 0; 523038c8a9a5SSteve French } 523138c8a9a5SSteve French 523238c8a9a5SSteve French /** 523338c8a9a5SSteve French * smb2_query_info() - handler for smb2 query info command 523438c8a9a5SSteve French * @work: smb work containing query info request buffer 523538c8a9a5SSteve French * 523638c8a9a5SSteve French * Return: 0 on success, otherwise error 523738c8a9a5SSteve French */ 523838c8a9a5SSteve French int smb2_query_info(struct ksmbd_work *work) 523938c8a9a5SSteve French { 524038c8a9a5SSteve French struct smb2_query_info_req *req; 524138c8a9a5SSteve French struct smb2_query_info_rsp *rsp; 524238c8a9a5SSteve French int rc = 0; 524338c8a9a5SSteve French 524438c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 524538c8a9a5SSteve French 524638c8a9a5SSteve French ksmbd_debug(SMB, "GOT query info request\n"); 524738c8a9a5SSteve French 524838c8a9a5SSteve French switch (req->InfoType) { 524938c8a9a5SSteve French case SMB2_O_INFO_FILE: 525038c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n"); 525138c8a9a5SSteve French rc = smb2_get_info_file(work, req, rsp); 525238c8a9a5SSteve French break; 525338c8a9a5SSteve French case SMB2_O_INFO_FILESYSTEM: 525438c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILESYSTEM\n"); 525538c8a9a5SSteve French rc = smb2_get_info_filesystem(work, req, rsp); 525638c8a9a5SSteve French break; 525738c8a9a5SSteve French case SMB2_O_INFO_SECURITY: 525838c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_SECURITY\n"); 525938c8a9a5SSteve French rc = smb2_get_info_sec(work, req, rsp); 526038c8a9a5SSteve French break; 526138c8a9a5SSteve French default: 526238c8a9a5SSteve French ksmbd_debug(SMB, "InfoType %d not supported yet\n", 526338c8a9a5SSteve French req->InfoType); 526438c8a9a5SSteve French rc = -EOPNOTSUPP; 526538c8a9a5SSteve French } 526638c8a9a5SSteve French 5267e2b76ab8SNamjae Jeon if (!rc) { 5268e2b76ab8SNamjae Jeon rsp->StructureSize = cpu_to_le16(9); 5269e2b76ab8SNamjae Jeon rsp->OutputBufferOffset = cpu_to_le16(72); 5270e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, 5271e2b76ab8SNamjae Jeon offsetof(struct smb2_query_info_rsp, Buffer) + 5272e2b76ab8SNamjae Jeon le32_to_cpu(rsp->OutputBufferLength)); 5273e2b76ab8SNamjae Jeon } 5274e2b76ab8SNamjae Jeon 527538c8a9a5SSteve French if (rc < 0) { 527638c8a9a5SSteve French if (rc == -EACCES) 527738c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 527838c8a9a5SSteve French else if (rc == -ENOENT) 527938c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 528038c8a9a5SSteve French else if (rc == -EIO) 528138c8a9a5SSteve French rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; 5282e2b76ab8SNamjae Jeon else if (rc == -ENOMEM) 5283e2b76ab8SNamjae Jeon rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 528438c8a9a5SSteve French else if (rc == -EOPNOTSUPP || rsp->hdr.Status == 0) 528538c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_INFO_CLASS; 528638c8a9a5SSteve French smb2_set_err_rsp(work); 528738c8a9a5SSteve French 528838c8a9a5SSteve French ksmbd_debug(SMB, "error while processing smb2 query rc = %d\n", 528938c8a9a5SSteve French rc); 529038c8a9a5SSteve French return rc; 529138c8a9a5SSteve French } 529238c8a9a5SSteve French return 0; 529338c8a9a5SSteve French } 529438c8a9a5SSteve French 529538c8a9a5SSteve French /** 529638c8a9a5SSteve French * smb2_close_pipe() - handler for closing IPC pipe 529738c8a9a5SSteve French * @work: smb work containing close request buffer 529838c8a9a5SSteve French * 529938c8a9a5SSteve French * Return: 0 530038c8a9a5SSteve French */ 530138c8a9a5SSteve French static noinline int smb2_close_pipe(struct ksmbd_work *work) 530238c8a9a5SSteve French { 530338c8a9a5SSteve French u64 id; 53047b7d709eSNamjae Jeon struct smb2_close_req *req; 53057b7d709eSNamjae Jeon struct smb2_close_rsp *rsp; 53067b7d709eSNamjae Jeon 53077b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 530838c8a9a5SSteve French 530938c8a9a5SSteve French id = req->VolatileFileId; 531038c8a9a5SSteve French ksmbd_session_rpc_close(work->sess, id); 531138c8a9a5SSteve French 531238c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(60); 531338c8a9a5SSteve French rsp->Flags = 0; 531438c8a9a5SSteve French rsp->Reserved = 0; 531538c8a9a5SSteve French rsp->CreationTime = 0; 531638c8a9a5SSteve French rsp->LastAccessTime = 0; 531738c8a9a5SSteve French rsp->LastWriteTime = 0; 531838c8a9a5SSteve French rsp->ChangeTime = 0; 531938c8a9a5SSteve French rsp->AllocationSize = 0; 532038c8a9a5SSteve French rsp->EndOfFile = 0; 532138c8a9a5SSteve French rsp->Attributes = 0; 5322e2b76ab8SNamjae Jeon 5323e2b76ab8SNamjae Jeon return ksmbd_iov_pin_rsp(work, (void *)rsp, 5324e2b76ab8SNamjae Jeon sizeof(struct smb2_close_rsp)); 532538c8a9a5SSteve French } 532638c8a9a5SSteve French 532738c8a9a5SSteve French /** 532838c8a9a5SSteve French * smb2_close() - handler for smb2 close file command 532938c8a9a5SSteve French * @work: smb work containing close request buffer 533038c8a9a5SSteve French * 533138c8a9a5SSteve French * Return: 0 533238c8a9a5SSteve French */ 533338c8a9a5SSteve French int smb2_close(struct ksmbd_work *work) 533438c8a9a5SSteve French { 533538c8a9a5SSteve French u64 volatile_id = KSMBD_NO_FID; 533638c8a9a5SSteve French u64 sess_id; 533738c8a9a5SSteve French struct smb2_close_req *req; 533838c8a9a5SSteve French struct smb2_close_rsp *rsp; 533938c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 534038c8a9a5SSteve French struct ksmbd_file *fp; 534138c8a9a5SSteve French struct inode *inode; 534238c8a9a5SSteve French u64 time; 534338c8a9a5SSteve French int err = 0; 534438c8a9a5SSteve French 534538c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 534638c8a9a5SSteve French 534738c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 534838c8a9a5SSteve French KSMBD_SHARE_FLAG_PIPE)) { 534938c8a9a5SSteve French ksmbd_debug(SMB, "IPC pipe close request\n"); 535038c8a9a5SSteve French return smb2_close_pipe(work); 535138c8a9a5SSteve French } 535238c8a9a5SSteve French 535338c8a9a5SSteve French sess_id = le64_to_cpu(req->hdr.SessionId); 535438c8a9a5SSteve French if (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS) 535538c8a9a5SSteve French sess_id = work->compound_sid; 535638c8a9a5SSteve French 535738c8a9a5SSteve French work->compound_sid = 0; 535838c8a9a5SSteve French if (check_session_id(conn, sess_id)) { 535938c8a9a5SSteve French work->compound_sid = sess_id; 536038c8a9a5SSteve French } else { 536138c8a9a5SSteve French rsp->hdr.Status = STATUS_USER_SESSION_DELETED; 536238c8a9a5SSteve French if (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS) 536338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 536438c8a9a5SSteve French err = -EBADF; 536538c8a9a5SSteve French goto out; 536638c8a9a5SSteve French } 536738c8a9a5SSteve French 536838c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off && 536938c8a9a5SSteve French !has_file_id(req->VolatileFileId)) { 537038c8a9a5SSteve French if (!has_file_id(work->compound_fid)) { 537138c8a9a5SSteve French /* file already closed, return FILE_CLOSED */ 537238c8a9a5SSteve French ksmbd_debug(SMB, "file already closed\n"); 537338c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 537438c8a9a5SSteve French err = -EBADF; 537538c8a9a5SSteve French goto out; 537638c8a9a5SSteve French } else { 537738c8a9a5SSteve French ksmbd_debug(SMB, 537838c8a9a5SSteve French "Compound request set FID = %llu:%llu\n", 537938c8a9a5SSteve French work->compound_fid, 538038c8a9a5SSteve French work->compound_pfid); 538138c8a9a5SSteve French volatile_id = work->compound_fid; 538238c8a9a5SSteve French 538338c8a9a5SSteve French /* file closed, stored id is not valid anymore */ 538438c8a9a5SSteve French work->compound_fid = KSMBD_NO_FID; 538538c8a9a5SSteve French work->compound_pfid = KSMBD_NO_FID; 538638c8a9a5SSteve French } 538738c8a9a5SSteve French } else { 538838c8a9a5SSteve French volatile_id = req->VolatileFileId; 538938c8a9a5SSteve French } 539038c8a9a5SSteve French ksmbd_debug(SMB, "volatile_id = %llu\n", volatile_id); 539138c8a9a5SSteve French 539238c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(60); 539338c8a9a5SSteve French rsp->Reserved = 0; 539438c8a9a5SSteve French 539538c8a9a5SSteve French if (req->Flags == SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB) { 539638c8a9a5SSteve French fp = ksmbd_lookup_fd_fast(work, volatile_id); 539738c8a9a5SSteve French if (!fp) { 539838c8a9a5SSteve French err = -ENOENT; 539938c8a9a5SSteve French goto out; 540038c8a9a5SSteve French } 540138c8a9a5SSteve French 540238c8a9a5SSteve French inode = file_inode(fp->filp); 540338c8a9a5SSteve French rsp->Flags = SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB; 540438c8a9a5SSteve French rsp->AllocationSize = S_ISDIR(inode->i_mode) ? 0 : 540538c8a9a5SSteve French cpu_to_le64(inode->i_blocks << 9); 540638c8a9a5SSteve French rsp->EndOfFile = cpu_to_le64(inode->i_size); 540738c8a9a5SSteve French rsp->Attributes = fp->f_ci->m_fattr; 540838c8a9a5SSteve French rsp->CreationTime = cpu_to_le64(fp->create_time); 540938c8a9a5SSteve French time = ksmbd_UnixTimeToNT(inode->i_atime); 541038c8a9a5SSteve French rsp->LastAccessTime = cpu_to_le64(time); 541138c8a9a5SSteve French time = ksmbd_UnixTimeToNT(inode->i_mtime); 541238c8a9a5SSteve French rsp->LastWriteTime = cpu_to_le64(time); 541394487653SJeff Layton time = ksmbd_UnixTimeToNT(inode_get_ctime(inode)); 541438c8a9a5SSteve French rsp->ChangeTime = cpu_to_le64(time); 541538c8a9a5SSteve French ksmbd_fd_put(work, fp); 541638c8a9a5SSteve French } else { 541738c8a9a5SSteve French rsp->Flags = 0; 541838c8a9a5SSteve French rsp->AllocationSize = 0; 541938c8a9a5SSteve French rsp->EndOfFile = 0; 542038c8a9a5SSteve French rsp->Attributes = 0; 542138c8a9a5SSteve French rsp->CreationTime = 0; 542238c8a9a5SSteve French rsp->LastAccessTime = 0; 542338c8a9a5SSteve French rsp->LastWriteTime = 0; 542438c8a9a5SSteve French rsp->ChangeTime = 0; 542538c8a9a5SSteve French } 542638c8a9a5SSteve French 542738c8a9a5SSteve French err = ksmbd_close_fd(work, volatile_id); 542838c8a9a5SSteve French out: 5429e2b76ab8SNamjae Jeon if (!err) 5430e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, (void *)rsp, 5431e2b76ab8SNamjae Jeon sizeof(struct smb2_close_rsp)); 5432e2b76ab8SNamjae Jeon 543338c8a9a5SSteve French if (err) { 543438c8a9a5SSteve French if (rsp->hdr.Status == 0) 543538c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 543638c8a9a5SSteve French smb2_set_err_rsp(work); 543738c8a9a5SSteve French } 543838c8a9a5SSteve French 5439e2b76ab8SNamjae Jeon return err; 544038c8a9a5SSteve French } 544138c8a9a5SSteve French 544238c8a9a5SSteve French /** 544338c8a9a5SSteve French * smb2_echo() - handler for smb2 echo(ping) command 544438c8a9a5SSteve French * @work: smb work containing echo request buffer 544538c8a9a5SSteve French * 544638c8a9a5SSteve French * Return: 0 544738c8a9a5SSteve French */ 544838c8a9a5SSteve French int smb2_echo(struct ksmbd_work *work) 544938c8a9a5SSteve French { 545038c8a9a5SSteve French struct smb2_echo_rsp *rsp = smb2_get_msg(work->response_buf); 545138c8a9a5SSteve French 54527b7d709eSNamjae Jeon if (work->next_smb2_rcv_hdr_off) 54537b7d709eSNamjae Jeon rsp = ksmbd_resp_buf_next(work); 54547b7d709eSNamjae Jeon 545538c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(4); 545638c8a9a5SSteve French rsp->Reserved = 0; 5457e2b76ab8SNamjae Jeon return ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_echo_rsp)); 545838c8a9a5SSteve French } 545938c8a9a5SSteve French 546038c8a9a5SSteve French static int smb2_rename(struct ksmbd_work *work, 546138c8a9a5SSteve French struct ksmbd_file *fp, 546238c8a9a5SSteve French struct smb2_file_rename_info *file_info, 546338c8a9a5SSteve French struct nls_table *local_nls) 546438c8a9a5SSteve French { 546538c8a9a5SSteve French struct ksmbd_share_config *share = fp->tcon->share_conf; 546638c8a9a5SSteve French char *new_name = NULL; 546738c8a9a5SSteve French int rc, flags = 0; 546838c8a9a5SSteve French 546938c8a9a5SSteve French ksmbd_debug(SMB, "setting FILE_RENAME_INFO\n"); 547038c8a9a5SSteve French new_name = smb2_get_name(file_info->FileName, 547138c8a9a5SSteve French le32_to_cpu(file_info->FileNameLength), 547238c8a9a5SSteve French local_nls); 547338c8a9a5SSteve French if (IS_ERR(new_name)) 547438c8a9a5SSteve French return PTR_ERR(new_name); 547538c8a9a5SSteve French 547638c8a9a5SSteve French if (strchr(new_name, ':')) { 547738c8a9a5SSteve French int s_type; 547838c8a9a5SSteve French char *xattr_stream_name, *stream_name = NULL; 547938c8a9a5SSteve French size_t xattr_stream_size; 548038c8a9a5SSteve French int len; 548138c8a9a5SSteve French 548238c8a9a5SSteve French rc = parse_stream_name(new_name, &stream_name, &s_type); 548338c8a9a5SSteve French if (rc < 0) 548438c8a9a5SSteve French goto out; 548538c8a9a5SSteve French 548638c8a9a5SSteve French len = strlen(new_name); 548738c8a9a5SSteve French if (len > 0 && new_name[len - 1] != '/') { 548838c8a9a5SSteve French pr_err("not allow base filename in rename\n"); 548938c8a9a5SSteve French rc = -ESHARE; 549038c8a9a5SSteve French goto out; 549138c8a9a5SSteve French } 549238c8a9a5SSteve French 549338c8a9a5SSteve French rc = ksmbd_vfs_xattr_stream_name(stream_name, 549438c8a9a5SSteve French &xattr_stream_name, 549538c8a9a5SSteve French &xattr_stream_size, 549638c8a9a5SSteve French s_type); 549738c8a9a5SSteve French if (rc) 549838c8a9a5SSteve French goto out; 549938c8a9a5SSteve French 550038c8a9a5SSteve French rc = ksmbd_vfs_setxattr(file_mnt_idmap(fp->filp), 550140b268d3SNamjae Jeon &fp->filp->f_path, 550238c8a9a5SSteve French xattr_stream_name, 550338c8a9a5SSteve French NULL, 0, 0); 550438c8a9a5SSteve French if (rc < 0) { 550538c8a9a5SSteve French pr_err("failed to store stream name in xattr: %d\n", 550638c8a9a5SSteve French rc); 550738c8a9a5SSteve French rc = -EINVAL; 550838c8a9a5SSteve French goto out; 550938c8a9a5SSteve French } 551038c8a9a5SSteve French 551138c8a9a5SSteve French goto out; 551238c8a9a5SSteve French } 551338c8a9a5SSteve French 551438c8a9a5SSteve French ksmbd_debug(SMB, "new name %s\n", new_name); 551538c8a9a5SSteve French if (ksmbd_share_veto_filename(share, new_name)) { 551638c8a9a5SSteve French rc = -ENOENT; 551738c8a9a5SSteve French ksmbd_debug(SMB, "Can't rename vetoed file: %s\n", new_name); 551838c8a9a5SSteve French goto out; 551938c8a9a5SSteve French } 552038c8a9a5SSteve French 552138c8a9a5SSteve French if (!file_info->ReplaceIfExists) 552238c8a9a5SSteve French flags = RENAME_NOREPLACE; 552338c8a9a5SSteve French 552438c8a9a5SSteve French rc = ksmbd_vfs_rename(work, &fp->filp->f_path, new_name, flags); 552538c8a9a5SSteve French out: 552638c8a9a5SSteve French kfree(new_name); 552738c8a9a5SSteve French return rc; 552838c8a9a5SSteve French } 552938c8a9a5SSteve French 553038c8a9a5SSteve French static int smb2_create_link(struct ksmbd_work *work, 553138c8a9a5SSteve French struct ksmbd_share_config *share, 553238c8a9a5SSteve French struct smb2_file_link_info *file_info, 553338c8a9a5SSteve French unsigned int buf_len, struct file *filp, 553438c8a9a5SSteve French struct nls_table *local_nls) 553538c8a9a5SSteve French { 553638c8a9a5SSteve French char *link_name = NULL, *target_name = NULL, *pathname = NULL; 55372b57a432SNamjae Jeon struct path path, parent_path; 5538df14afeeSNamjae Jeon bool file_present = false; 553938c8a9a5SSteve French int rc; 554038c8a9a5SSteve French 554138c8a9a5SSteve French if (buf_len < (u64)sizeof(struct smb2_file_link_info) + 554238c8a9a5SSteve French le32_to_cpu(file_info->FileNameLength)) 554338c8a9a5SSteve French return -EINVAL; 554438c8a9a5SSteve French 554538c8a9a5SSteve French ksmbd_debug(SMB, "setting FILE_LINK_INFORMATION\n"); 554638c8a9a5SSteve French pathname = kmalloc(PATH_MAX, GFP_KERNEL); 554738c8a9a5SSteve French if (!pathname) 554838c8a9a5SSteve French return -ENOMEM; 554938c8a9a5SSteve French 555038c8a9a5SSteve French link_name = smb2_get_name(file_info->FileName, 555138c8a9a5SSteve French le32_to_cpu(file_info->FileNameLength), 555238c8a9a5SSteve French local_nls); 555338c8a9a5SSteve French if (IS_ERR(link_name) || S_ISDIR(file_inode(filp)->i_mode)) { 555438c8a9a5SSteve French rc = -EINVAL; 555538c8a9a5SSteve French goto out; 555638c8a9a5SSteve French } 555738c8a9a5SSteve French 555838c8a9a5SSteve French ksmbd_debug(SMB, "link name is %s\n", link_name); 555938c8a9a5SSteve French target_name = file_path(filp, pathname, PATH_MAX); 556038c8a9a5SSteve French if (IS_ERR(target_name)) { 556138c8a9a5SSteve French rc = -EINVAL; 556238c8a9a5SSteve French goto out; 556338c8a9a5SSteve French } 556438c8a9a5SSteve French 556538c8a9a5SSteve French ksmbd_debug(SMB, "target name is %s\n", target_name); 556638c8a9a5SSteve French rc = ksmbd_vfs_kern_path_locked(work, link_name, LOOKUP_NO_SYMLINKS, 55672b57a432SNamjae Jeon &parent_path, &path, 0); 556838c8a9a5SSteve French if (rc) { 556938c8a9a5SSteve French if (rc != -ENOENT) 557038c8a9a5SSteve French goto out; 5571df14afeeSNamjae Jeon } else 5572df14afeeSNamjae Jeon file_present = true; 557338c8a9a5SSteve French 557438c8a9a5SSteve French if (file_info->ReplaceIfExists) { 557538c8a9a5SSteve French if (file_present) { 557638c8a9a5SSteve French rc = ksmbd_vfs_remove_file(work, &path); 557738c8a9a5SSteve French if (rc) { 557838c8a9a5SSteve French rc = -EINVAL; 557938c8a9a5SSteve French ksmbd_debug(SMB, "cannot delete %s\n", 558038c8a9a5SSteve French link_name); 558138c8a9a5SSteve French goto out; 558238c8a9a5SSteve French } 558338c8a9a5SSteve French } 558438c8a9a5SSteve French } else { 558538c8a9a5SSteve French if (file_present) { 558638c8a9a5SSteve French rc = -EEXIST; 558738c8a9a5SSteve French ksmbd_debug(SMB, "link already exists\n"); 558838c8a9a5SSteve French goto out; 558938c8a9a5SSteve French } 559038c8a9a5SSteve French } 559138c8a9a5SSteve French 559238c8a9a5SSteve French rc = ksmbd_vfs_link(work, target_name, link_name); 559338c8a9a5SSteve French if (rc) 559438c8a9a5SSteve French rc = -EINVAL; 559538c8a9a5SSteve French out: 559638c8a9a5SSteve French if (file_present) { 55972b57a432SNamjae Jeon inode_unlock(d_inode(parent_path.dentry)); 559838c8a9a5SSteve French path_put(&path); 55992b57a432SNamjae Jeon path_put(&parent_path); 560038c8a9a5SSteve French } 560138c8a9a5SSteve French if (!IS_ERR(link_name)) 560238c8a9a5SSteve French kfree(link_name); 560338c8a9a5SSteve French kfree(pathname); 560438c8a9a5SSteve French return rc; 560538c8a9a5SSteve French } 560638c8a9a5SSteve French 560738c8a9a5SSteve French static int set_file_basic_info(struct ksmbd_file *fp, 560838c8a9a5SSteve French struct smb2_file_basic_info *file_info, 560938c8a9a5SSteve French struct ksmbd_share_config *share) 561038c8a9a5SSteve French { 561138c8a9a5SSteve French struct iattr attrs; 561238c8a9a5SSteve French struct file *filp; 561338c8a9a5SSteve French struct inode *inode; 561438c8a9a5SSteve French struct mnt_idmap *idmap; 561538c8a9a5SSteve French int rc = 0; 561638c8a9a5SSteve French 561738c8a9a5SSteve French if (!(fp->daccess & FILE_WRITE_ATTRIBUTES_LE)) 561838c8a9a5SSteve French return -EACCES; 561938c8a9a5SSteve French 562038c8a9a5SSteve French attrs.ia_valid = 0; 562138c8a9a5SSteve French filp = fp->filp; 562238c8a9a5SSteve French inode = file_inode(filp); 562338c8a9a5SSteve French idmap = file_mnt_idmap(filp); 562438c8a9a5SSteve French 562538c8a9a5SSteve French if (file_info->CreationTime) 562638c8a9a5SSteve French fp->create_time = le64_to_cpu(file_info->CreationTime); 562738c8a9a5SSteve French 562838c8a9a5SSteve French if (file_info->LastAccessTime) { 562938c8a9a5SSteve French attrs.ia_atime = ksmbd_NTtimeToUnix(file_info->LastAccessTime); 563038c8a9a5SSteve French attrs.ia_valid |= (ATTR_ATIME | ATTR_ATIME_SET); 563138c8a9a5SSteve French } 563238c8a9a5SSteve French 563338c8a9a5SSteve French attrs.ia_valid |= ATTR_CTIME; 563438c8a9a5SSteve French if (file_info->ChangeTime) 563538c8a9a5SSteve French attrs.ia_ctime = ksmbd_NTtimeToUnix(file_info->ChangeTime); 563638c8a9a5SSteve French else 563794487653SJeff Layton attrs.ia_ctime = inode_get_ctime(inode); 563838c8a9a5SSteve French 563938c8a9a5SSteve French if (file_info->LastWriteTime) { 564038c8a9a5SSteve French attrs.ia_mtime = ksmbd_NTtimeToUnix(file_info->LastWriteTime); 564138c8a9a5SSteve French attrs.ia_valid |= (ATTR_MTIME | ATTR_MTIME_SET); 564238c8a9a5SSteve French } 564338c8a9a5SSteve French 564438c8a9a5SSteve French if (file_info->Attributes) { 564538c8a9a5SSteve French if (!S_ISDIR(inode->i_mode) && 564638c8a9a5SSteve French file_info->Attributes & FILE_ATTRIBUTE_DIRECTORY_LE) { 564738c8a9a5SSteve French pr_err("can't change a file to a directory\n"); 564838c8a9a5SSteve French return -EINVAL; 564938c8a9a5SSteve French } 565038c8a9a5SSteve French 565138c8a9a5SSteve French if (!(S_ISDIR(inode->i_mode) && file_info->Attributes == FILE_ATTRIBUTE_NORMAL_LE)) 565238c8a9a5SSteve French fp->f_ci->m_fattr = file_info->Attributes | 565338c8a9a5SSteve French (fp->f_ci->m_fattr & FILE_ATTRIBUTE_DIRECTORY_LE); 565438c8a9a5SSteve French } 565538c8a9a5SSteve French 565638c8a9a5SSteve French if (test_share_config_flag(share, KSMBD_SHARE_FLAG_STORE_DOS_ATTRS) && 565738c8a9a5SSteve French (file_info->CreationTime || file_info->Attributes)) { 565838c8a9a5SSteve French struct xattr_dos_attrib da = {0}; 565938c8a9a5SSteve French 566038c8a9a5SSteve French da.version = 4; 566138c8a9a5SSteve French da.itime = fp->itime; 566238c8a9a5SSteve French da.create_time = fp->create_time; 566338c8a9a5SSteve French da.attr = le32_to_cpu(fp->f_ci->m_fattr); 566438c8a9a5SSteve French da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME | 566538c8a9a5SSteve French XATTR_DOSINFO_ITIME; 566638c8a9a5SSteve French 566740b268d3SNamjae Jeon rc = ksmbd_vfs_set_dos_attrib_xattr(idmap, &filp->f_path, &da); 566838c8a9a5SSteve French if (rc) 566938c8a9a5SSteve French ksmbd_debug(SMB, 567038c8a9a5SSteve French "failed to restore file attribute in EA\n"); 567138c8a9a5SSteve French rc = 0; 567238c8a9a5SSteve French } 567338c8a9a5SSteve French 567438c8a9a5SSteve French if (attrs.ia_valid) { 567538c8a9a5SSteve French struct dentry *dentry = filp->f_path.dentry; 567638c8a9a5SSteve French struct inode *inode = d_inode(dentry); 567738c8a9a5SSteve French 567838c8a9a5SSteve French if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) 567938c8a9a5SSteve French return -EACCES; 568038c8a9a5SSteve French 568138c8a9a5SSteve French inode_lock(inode); 568294487653SJeff Layton inode_set_ctime_to_ts(inode, attrs.ia_ctime); 568338c8a9a5SSteve French attrs.ia_valid &= ~ATTR_CTIME; 568438c8a9a5SSteve French rc = notify_change(idmap, dentry, &attrs, NULL); 568538c8a9a5SSteve French inode_unlock(inode); 568638c8a9a5SSteve French } 568738c8a9a5SSteve French return rc; 568838c8a9a5SSteve French } 568938c8a9a5SSteve French 569038c8a9a5SSteve French static int set_file_allocation_info(struct ksmbd_work *work, 569138c8a9a5SSteve French struct ksmbd_file *fp, 569238c8a9a5SSteve French struct smb2_file_alloc_info *file_alloc_info) 569338c8a9a5SSteve French { 569438c8a9a5SSteve French /* 569538c8a9a5SSteve French * TODO : It's working fine only when store dos attributes 569638c8a9a5SSteve French * is not yes. need to implement a logic which works 569738c8a9a5SSteve French * properly with any smb.conf option 569838c8a9a5SSteve French */ 569938c8a9a5SSteve French 570038c8a9a5SSteve French loff_t alloc_blks; 570138c8a9a5SSteve French struct inode *inode; 570238c8a9a5SSteve French int rc; 570338c8a9a5SSteve French 570438c8a9a5SSteve French if (!(fp->daccess & FILE_WRITE_DATA_LE)) 570538c8a9a5SSteve French return -EACCES; 570638c8a9a5SSteve French 570738c8a9a5SSteve French alloc_blks = (le64_to_cpu(file_alloc_info->AllocationSize) + 511) >> 9; 570838c8a9a5SSteve French inode = file_inode(fp->filp); 570938c8a9a5SSteve French 571038c8a9a5SSteve French if (alloc_blks > inode->i_blocks) { 571138c8a9a5SSteve French smb_break_all_levII_oplock(work, fp, 1); 571238c8a9a5SSteve French rc = vfs_fallocate(fp->filp, FALLOC_FL_KEEP_SIZE, 0, 571338c8a9a5SSteve French alloc_blks * 512); 571438c8a9a5SSteve French if (rc && rc != -EOPNOTSUPP) { 571538c8a9a5SSteve French pr_err("vfs_fallocate is failed : %d\n", rc); 571638c8a9a5SSteve French return rc; 571738c8a9a5SSteve French } 571838c8a9a5SSteve French } else if (alloc_blks < inode->i_blocks) { 571938c8a9a5SSteve French loff_t size; 572038c8a9a5SSteve French 572138c8a9a5SSteve French /* 572238c8a9a5SSteve French * Allocation size could be smaller than original one 572338c8a9a5SSteve French * which means allocated blocks in file should be 572438c8a9a5SSteve French * deallocated. use truncate to cut out it, but inode 572538c8a9a5SSteve French * size is also updated with truncate offset. 572638c8a9a5SSteve French * inode size is retained by backup inode size. 572738c8a9a5SSteve French */ 572838c8a9a5SSteve French size = i_size_read(inode); 572938c8a9a5SSteve French rc = ksmbd_vfs_truncate(work, fp, alloc_blks * 512); 573038c8a9a5SSteve French if (rc) { 573138c8a9a5SSteve French pr_err("truncate failed!, err %d\n", rc); 573238c8a9a5SSteve French return rc; 573338c8a9a5SSteve French } 573438c8a9a5SSteve French if (size < alloc_blks * 512) 573538c8a9a5SSteve French i_size_write(inode, size); 573638c8a9a5SSteve French } 573738c8a9a5SSteve French return 0; 573838c8a9a5SSteve French } 573938c8a9a5SSteve French 574038c8a9a5SSteve French static int set_end_of_file_info(struct ksmbd_work *work, struct ksmbd_file *fp, 574138c8a9a5SSteve French struct smb2_file_eof_info *file_eof_info) 574238c8a9a5SSteve French { 574338c8a9a5SSteve French loff_t newsize; 574438c8a9a5SSteve French struct inode *inode; 574538c8a9a5SSteve French int rc; 574638c8a9a5SSteve French 574738c8a9a5SSteve French if (!(fp->daccess & FILE_WRITE_DATA_LE)) 574838c8a9a5SSteve French return -EACCES; 574938c8a9a5SSteve French 575038c8a9a5SSteve French newsize = le64_to_cpu(file_eof_info->EndOfFile); 575138c8a9a5SSteve French inode = file_inode(fp->filp); 575238c8a9a5SSteve French 575338c8a9a5SSteve French /* 575438c8a9a5SSteve French * If FILE_END_OF_FILE_INFORMATION of set_info_file is called 575538c8a9a5SSteve French * on FAT32 shared device, truncate execution time is too long 575638c8a9a5SSteve French * and network error could cause from windows client. because 575738c8a9a5SSteve French * truncate of some filesystem like FAT32 fill zero data in 575838c8a9a5SSteve French * truncated range. 575938c8a9a5SSteve French */ 576038c8a9a5SSteve French if (inode->i_sb->s_magic != MSDOS_SUPER_MAGIC) { 576138c8a9a5SSteve French ksmbd_debug(SMB, "truncated to newsize %lld\n", newsize); 576238c8a9a5SSteve French rc = ksmbd_vfs_truncate(work, fp, newsize); 576338c8a9a5SSteve French if (rc) { 576438c8a9a5SSteve French ksmbd_debug(SMB, "truncate failed!, err %d\n", rc); 576538c8a9a5SSteve French if (rc != -EAGAIN) 576638c8a9a5SSteve French rc = -EBADF; 576738c8a9a5SSteve French return rc; 576838c8a9a5SSteve French } 576938c8a9a5SSteve French } 577038c8a9a5SSteve French return 0; 577138c8a9a5SSteve French } 577238c8a9a5SSteve French 577338c8a9a5SSteve French static int set_rename_info(struct ksmbd_work *work, struct ksmbd_file *fp, 577438c8a9a5SSteve French struct smb2_file_rename_info *rename_info, 577538c8a9a5SSteve French unsigned int buf_len) 577638c8a9a5SSteve French { 577738c8a9a5SSteve French if (!(fp->daccess & FILE_DELETE_LE)) { 577838c8a9a5SSteve French pr_err("no right to delete : 0x%x\n", fp->daccess); 577938c8a9a5SSteve French return -EACCES; 578038c8a9a5SSteve French } 578138c8a9a5SSteve French 578238c8a9a5SSteve French if (buf_len < (u64)sizeof(struct smb2_file_rename_info) + 578338c8a9a5SSteve French le32_to_cpu(rename_info->FileNameLength)) 578438c8a9a5SSteve French return -EINVAL; 578538c8a9a5SSteve French 578638c8a9a5SSteve French if (!le32_to_cpu(rename_info->FileNameLength)) 578738c8a9a5SSteve French return -EINVAL; 578838c8a9a5SSteve French 578938c8a9a5SSteve French return smb2_rename(work, fp, rename_info, work->conn->local_nls); 579038c8a9a5SSteve French } 579138c8a9a5SSteve French 579238c8a9a5SSteve French static int set_file_disposition_info(struct ksmbd_file *fp, 579338c8a9a5SSteve French struct smb2_file_disposition_info *file_info) 579438c8a9a5SSteve French { 579538c8a9a5SSteve French struct inode *inode; 579638c8a9a5SSteve French 579738c8a9a5SSteve French if (!(fp->daccess & FILE_DELETE_LE)) { 579838c8a9a5SSteve French pr_err("no right to delete : 0x%x\n", fp->daccess); 579938c8a9a5SSteve French return -EACCES; 580038c8a9a5SSteve French } 580138c8a9a5SSteve French 580238c8a9a5SSteve French inode = file_inode(fp->filp); 580338c8a9a5SSteve French if (file_info->DeletePending) { 580438c8a9a5SSteve French if (S_ISDIR(inode->i_mode) && 580538c8a9a5SSteve French ksmbd_vfs_empty_dir(fp) == -ENOTEMPTY) 580638c8a9a5SSteve French return -EBUSY; 580738c8a9a5SSteve French ksmbd_set_inode_pending_delete(fp); 580838c8a9a5SSteve French } else { 580938c8a9a5SSteve French ksmbd_clear_inode_pending_delete(fp); 581038c8a9a5SSteve French } 581138c8a9a5SSteve French return 0; 581238c8a9a5SSteve French } 581338c8a9a5SSteve French 581438c8a9a5SSteve French static int set_file_position_info(struct ksmbd_file *fp, 581538c8a9a5SSteve French struct smb2_file_pos_info *file_info) 581638c8a9a5SSteve French { 581738c8a9a5SSteve French loff_t current_byte_offset; 581838c8a9a5SSteve French unsigned long sector_size; 581938c8a9a5SSteve French struct inode *inode; 582038c8a9a5SSteve French 582138c8a9a5SSteve French inode = file_inode(fp->filp); 582238c8a9a5SSteve French current_byte_offset = le64_to_cpu(file_info->CurrentByteOffset); 582338c8a9a5SSteve French sector_size = inode->i_sb->s_blocksize; 582438c8a9a5SSteve French 582538c8a9a5SSteve French if (current_byte_offset < 0 || 582638c8a9a5SSteve French (fp->coption == FILE_NO_INTERMEDIATE_BUFFERING_LE && 582738c8a9a5SSteve French current_byte_offset & (sector_size - 1))) { 582838c8a9a5SSteve French pr_err("CurrentByteOffset is not valid : %llu\n", 582938c8a9a5SSteve French current_byte_offset); 583038c8a9a5SSteve French return -EINVAL; 583138c8a9a5SSteve French } 583238c8a9a5SSteve French 583338c8a9a5SSteve French fp->filp->f_pos = current_byte_offset; 583438c8a9a5SSteve French return 0; 583538c8a9a5SSteve French } 583638c8a9a5SSteve French 583738c8a9a5SSteve French static int set_file_mode_info(struct ksmbd_file *fp, 583838c8a9a5SSteve French struct smb2_file_mode_info *file_info) 583938c8a9a5SSteve French { 584038c8a9a5SSteve French __le32 mode; 584138c8a9a5SSteve French 584238c8a9a5SSteve French mode = file_info->Mode; 584338c8a9a5SSteve French 584438c8a9a5SSteve French if ((mode & ~FILE_MODE_INFO_MASK)) { 584538c8a9a5SSteve French pr_err("Mode is not valid : 0x%x\n", le32_to_cpu(mode)); 584638c8a9a5SSteve French return -EINVAL; 584738c8a9a5SSteve French } 584838c8a9a5SSteve French 584938c8a9a5SSteve French /* 585038c8a9a5SSteve French * TODO : need to implement consideration for 585138c8a9a5SSteve French * FILE_SYNCHRONOUS_IO_ALERT and FILE_SYNCHRONOUS_IO_NONALERT 585238c8a9a5SSteve French */ 585338c8a9a5SSteve French ksmbd_vfs_set_fadvise(fp->filp, mode); 585438c8a9a5SSteve French fp->coption = mode; 585538c8a9a5SSteve French return 0; 585638c8a9a5SSteve French } 585738c8a9a5SSteve French 585838c8a9a5SSteve French /** 585938c8a9a5SSteve French * smb2_set_info_file() - handler for smb2 set info command 586038c8a9a5SSteve French * @work: smb work containing set info command buffer 586138c8a9a5SSteve French * @fp: ksmbd_file pointer 586238c8a9a5SSteve French * @req: request buffer pointer 586338c8a9a5SSteve French * @share: ksmbd_share_config pointer 586438c8a9a5SSteve French * 586538c8a9a5SSteve French * Return: 0 on success, otherwise error 586638c8a9a5SSteve French * TODO: need to implement an error handling for STATUS_INFO_LENGTH_MISMATCH 586738c8a9a5SSteve French */ 586838c8a9a5SSteve French static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp, 586938c8a9a5SSteve French struct smb2_set_info_req *req, 587038c8a9a5SSteve French struct ksmbd_share_config *share) 587138c8a9a5SSteve French { 587238c8a9a5SSteve French unsigned int buf_len = le32_to_cpu(req->BufferLength); 587338c8a9a5SSteve French 587438c8a9a5SSteve French switch (req->FileInfoClass) { 587538c8a9a5SSteve French case FILE_BASIC_INFORMATION: 587638c8a9a5SSteve French { 587738c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_basic_info)) 587838c8a9a5SSteve French return -EINVAL; 587938c8a9a5SSteve French 588038c8a9a5SSteve French return set_file_basic_info(fp, (struct smb2_file_basic_info *)req->Buffer, share); 588138c8a9a5SSteve French } 588238c8a9a5SSteve French case FILE_ALLOCATION_INFORMATION: 588338c8a9a5SSteve French { 588438c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_alloc_info)) 588538c8a9a5SSteve French return -EINVAL; 588638c8a9a5SSteve French 588738c8a9a5SSteve French return set_file_allocation_info(work, fp, 588838c8a9a5SSteve French (struct smb2_file_alloc_info *)req->Buffer); 588938c8a9a5SSteve French } 589038c8a9a5SSteve French case FILE_END_OF_FILE_INFORMATION: 589138c8a9a5SSteve French { 589238c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_eof_info)) 589338c8a9a5SSteve French return -EINVAL; 589438c8a9a5SSteve French 589538c8a9a5SSteve French return set_end_of_file_info(work, fp, 589638c8a9a5SSteve French (struct smb2_file_eof_info *)req->Buffer); 589738c8a9a5SSteve French } 589838c8a9a5SSteve French case FILE_RENAME_INFORMATION: 589938c8a9a5SSteve French { 590038c8a9a5SSteve French if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 590138c8a9a5SSteve French ksmbd_debug(SMB, 590238c8a9a5SSteve French "User does not have write permission\n"); 590338c8a9a5SSteve French return -EACCES; 590438c8a9a5SSteve French } 590538c8a9a5SSteve French 590638c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_rename_info)) 590738c8a9a5SSteve French return -EINVAL; 590838c8a9a5SSteve French 590938c8a9a5SSteve French return set_rename_info(work, fp, 591038c8a9a5SSteve French (struct smb2_file_rename_info *)req->Buffer, 591138c8a9a5SSteve French buf_len); 591238c8a9a5SSteve French } 591338c8a9a5SSteve French case FILE_LINK_INFORMATION: 591438c8a9a5SSteve French { 591538c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_link_info)) 591638c8a9a5SSteve French return -EINVAL; 591738c8a9a5SSteve French 591838c8a9a5SSteve French return smb2_create_link(work, work->tcon->share_conf, 591938c8a9a5SSteve French (struct smb2_file_link_info *)req->Buffer, 592038c8a9a5SSteve French buf_len, fp->filp, 592138c8a9a5SSteve French work->conn->local_nls); 592238c8a9a5SSteve French } 592338c8a9a5SSteve French case FILE_DISPOSITION_INFORMATION: 592438c8a9a5SSteve French { 592538c8a9a5SSteve French if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 592638c8a9a5SSteve French ksmbd_debug(SMB, 592738c8a9a5SSteve French "User does not have write permission\n"); 592838c8a9a5SSteve French return -EACCES; 592938c8a9a5SSteve French } 593038c8a9a5SSteve French 593138c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_disposition_info)) 593238c8a9a5SSteve French return -EINVAL; 593338c8a9a5SSteve French 593438c8a9a5SSteve French return set_file_disposition_info(fp, 593538c8a9a5SSteve French (struct smb2_file_disposition_info *)req->Buffer); 593638c8a9a5SSteve French } 593738c8a9a5SSteve French case FILE_FULL_EA_INFORMATION: 593838c8a9a5SSteve French { 593938c8a9a5SSteve French if (!(fp->daccess & FILE_WRITE_EA_LE)) { 594038c8a9a5SSteve French pr_err("Not permitted to write ext attr: 0x%x\n", 594138c8a9a5SSteve French fp->daccess); 594238c8a9a5SSteve French return -EACCES; 594338c8a9a5SSteve French } 594438c8a9a5SSteve French 594538c8a9a5SSteve French if (buf_len < sizeof(struct smb2_ea_info)) 594638c8a9a5SSteve French return -EINVAL; 594738c8a9a5SSteve French 594838c8a9a5SSteve French return smb2_set_ea((struct smb2_ea_info *)req->Buffer, 594938c8a9a5SSteve French buf_len, &fp->filp->f_path); 595038c8a9a5SSteve French } 595138c8a9a5SSteve French case FILE_POSITION_INFORMATION: 595238c8a9a5SSteve French { 595338c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_pos_info)) 595438c8a9a5SSteve French return -EINVAL; 595538c8a9a5SSteve French 595638c8a9a5SSteve French return set_file_position_info(fp, (struct smb2_file_pos_info *)req->Buffer); 595738c8a9a5SSteve French } 595838c8a9a5SSteve French case FILE_MODE_INFORMATION: 595938c8a9a5SSteve French { 596038c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_mode_info)) 596138c8a9a5SSteve French return -EINVAL; 596238c8a9a5SSteve French 596338c8a9a5SSteve French return set_file_mode_info(fp, (struct smb2_file_mode_info *)req->Buffer); 596438c8a9a5SSteve French } 596538c8a9a5SSteve French } 596638c8a9a5SSteve French 596738c8a9a5SSteve French pr_err("Unimplemented Fileinfoclass :%d\n", req->FileInfoClass); 596838c8a9a5SSteve French return -EOPNOTSUPP; 596938c8a9a5SSteve French } 597038c8a9a5SSteve French 597138c8a9a5SSteve French static int smb2_set_info_sec(struct ksmbd_file *fp, int addition_info, 597238c8a9a5SSteve French char *buffer, int buf_len) 597338c8a9a5SSteve French { 597438c8a9a5SSteve French struct smb_ntsd *pntsd = (struct smb_ntsd *)buffer; 597538c8a9a5SSteve French 597638c8a9a5SSteve French fp->saccess |= FILE_SHARE_DELETE_LE; 597738c8a9a5SSteve French 597838c8a9a5SSteve French return set_info_sec(fp->conn, fp->tcon, &fp->filp->f_path, pntsd, 597938c8a9a5SSteve French buf_len, false); 598038c8a9a5SSteve French } 598138c8a9a5SSteve French 598238c8a9a5SSteve French /** 598338c8a9a5SSteve French * smb2_set_info() - handler for smb2 set info command handler 598438c8a9a5SSteve French * @work: smb work containing set info request buffer 598538c8a9a5SSteve French * 598638c8a9a5SSteve French * Return: 0 on success, otherwise error 598738c8a9a5SSteve French */ 598838c8a9a5SSteve French int smb2_set_info(struct ksmbd_work *work) 598938c8a9a5SSteve French { 599038c8a9a5SSteve French struct smb2_set_info_req *req; 599138c8a9a5SSteve French struct smb2_set_info_rsp *rsp; 599238c8a9a5SSteve French struct ksmbd_file *fp; 599338c8a9a5SSteve French int rc = 0; 599438c8a9a5SSteve French unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; 599538c8a9a5SSteve French 599638c8a9a5SSteve French ksmbd_debug(SMB, "Received set info request\n"); 599738c8a9a5SSteve French 599838c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) { 599938c8a9a5SSteve French req = ksmbd_req_buf_next(work); 600038c8a9a5SSteve French rsp = ksmbd_resp_buf_next(work); 600138c8a9a5SSteve French if (!has_file_id(req->VolatileFileId)) { 600238c8a9a5SSteve French ksmbd_debug(SMB, "Compound request set FID = %llu\n", 600338c8a9a5SSteve French work->compound_fid); 600438c8a9a5SSteve French id = work->compound_fid; 600538c8a9a5SSteve French pid = work->compound_pfid; 600638c8a9a5SSteve French } 600738c8a9a5SSteve French } else { 600838c8a9a5SSteve French req = smb2_get_msg(work->request_buf); 600938c8a9a5SSteve French rsp = smb2_get_msg(work->response_buf); 601038c8a9a5SSteve French } 601138c8a9a5SSteve French 601238c8a9a5SSteve French if (!has_file_id(id)) { 601338c8a9a5SSteve French id = req->VolatileFileId; 601438c8a9a5SSteve French pid = req->PersistentFileId; 601538c8a9a5SSteve French } 601638c8a9a5SSteve French 601738c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, id, pid); 601838c8a9a5SSteve French if (!fp) { 601938c8a9a5SSteve French ksmbd_debug(SMB, "Invalid id for close: %u\n", id); 602038c8a9a5SSteve French rc = -ENOENT; 602138c8a9a5SSteve French goto err_out; 602238c8a9a5SSteve French } 602338c8a9a5SSteve French 602438c8a9a5SSteve French switch (req->InfoType) { 602538c8a9a5SSteve French case SMB2_O_INFO_FILE: 602638c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n"); 602738c8a9a5SSteve French rc = smb2_set_info_file(work, fp, req, work->tcon->share_conf); 602838c8a9a5SSteve French break; 602938c8a9a5SSteve French case SMB2_O_INFO_SECURITY: 603038c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_SECURITY\n"); 603138c8a9a5SSteve French if (ksmbd_override_fsids(work)) { 603238c8a9a5SSteve French rc = -ENOMEM; 603338c8a9a5SSteve French goto err_out; 603438c8a9a5SSteve French } 603538c8a9a5SSteve French rc = smb2_set_info_sec(fp, 603638c8a9a5SSteve French le32_to_cpu(req->AdditionalInformation), 603738c8a9a5SSteve French req->Buffer, 603838c8a9a5SSteve French le32_to_cpu(req->BufferLength)); 603938c8a9a5SSteve French ksmbd_revert_fsids(work); 604038c8a9a5SSteve French break; 604138c8a9a5SSteve French default: 604238c8a9a5SSteve French rc = -EOPNOTSUPP; 604338c8a9a5SSteve French } 604438c8a9a5SSteve French 604538c8a9a5SSteve French if (rc < 0) 604638c8a9a5SSteve French goto err_out; 604738c8a9a5SSteve French 604838c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(2); 6049e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, 6050e2b76ab8SNamjae Jeon sizeof(struct smb2_set_info_rsp)); 6051e2b76ab8SNamjae Jeon if (rc) 6052e2b76ab8SNamjae Jeon goto err_out; 605338c8a9a5SSteve French ksmbd_fd_put(work, fp); 605438c8a9a5SSteve French return 0; 605538c8a9a5SSteve French 605638c8a9a5SSteve French err_out: 605738c8a9a5SSteve French if (rc == -EACCES || rc == -EPERM || rc == -EXDEV) 605838c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 605938c8a9a5SSteve French else if (rc == -EINVAL) 606038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 606138c8a9a5SSteve French else if (rc == -ESHARE) 606238c8a9a5SSteve French rsp->hdr.Status = STATUS_SHARING_VIOLATION; 606338c8a9a5SSteve French else if (rc == -ENOENT) 606438c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_INVALID; 606538c8a9a5SSteve French else if (rc == -EBUSY || rc == -ENOTEMPTY) 606638c8a9a5SSteve French rsp->hdr.Status = STATUS_DIRECTORY_NOT_EMPTY; 606738c8a9a5SSteve French else if (rc == -EAGAIN) 606838c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; 606938c8a9a5SSteve French else if (rc == -EBADF || rc == -ESTALE) 607038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 607138c8a9a5SSteve French else if (rc == -EEXIST) 607238c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_COLLISION; 607338c8a9a5SSteve French else if (rsp->hdr.Status == 0 || rc == -EOPNOTSUPP) 607438c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_INFO_CLASS; 607538c8a9a5SSteve French smb2_set_err_rsp(work); 607638c8a9a5SSteve French ksmbd_fd_put(work, fp); 607738c8a9a5SSteve French ksmbd_debug(SMB, "error while processing smb2 query rc = %d\n", rc); 607838c8a9a5SSteve French return rc; 607938c8a9a5SSteve French } 608038c8a9a5SSteve French 608138c8a9a5SSteve French /** 608238c8a9a5SSteve French * smb2_read_pipe() - handler for smb2 read from IPC pipe 608338c8a9a5SSteve French * @work: smb work containing read IPC pipe command buffer 608438c8a9a5SSteve French * 608538c8a9a5SSteve French * Return: 0 on success, otherwise error 608638c8a9a5SSteve French */ 608738c8a9a5SSteve French static noinline int smb2_read_pipe(struct ksmbd_work *work) 608838c8a9a5SSteve French { 608938c8a9a5SSteve French int nbytes = 0, err; 609038c8a9a5SSteve French u64 id; 609138c8a9a5SSteve French struct ksmbd_rpc_command *rpc_resp; 60927b7d709eSNamjae Jeon struct smb2_read_req *req; 60937b7d709eSNamjae Jeon struct smb2_read_rsp *rsp; 60947b7d709eSNamjae Jeon 60957b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 609638c8a9a5SSteve French 609738c8a9a5SSteve French id = req->VolatileFileId; 609838c8a9a5SSteve French 609938c8a9a5SSteve French rpc_resp = ksmbd_rpc_read(work->sess, id); 610038c8a9a5SSteve French if (rpc_resp) { 6101e2b76ab8SNamjae Jeon void *aux_payload_buf; 6102e2b76ab8SNamjae Jeon 610338c8a9a5SSteve French if (rpc_resp->flags != KSMBD_RPC_OK) { 610438c8a9a5SSteve French err = -EINVAL; 610538c8a9a5SSteve French goto out; 610638c8a9a5SSteve French } 610738c8a9a5SSteve French 6108e2b76ab8SNamjae Jeon aux_payload_buf = 610981a94b27SNamjae Jeon kvmalloc(rpc_resp->payload_sz, GFP_KERNEL); 6110e2b76ab8SNamjae Jeon if (!aux_payload_buf) { 611138c8a9a5SSteve French err = -ENOMEM; 611238c8a9a5SSteve French goto out; 611338c8a9a5SSteve French } 611438c8a9a5SSteve French 6115e2b76ab8SNamjae Jeon memcpy(aux_payload_buf, rpc_resp->payload, rpc_resp->payload_sz); 611638c8a9a5SSteve French 611738c8a9a5SSteve French nbytes = rpc_resp->payload_sz; 611838c8a9a5SSteve French kvfree(rpc_resp); 6119e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp_read(work, (void *)rsp, 6120e2b76ab8SNamjae Jeon offsetof(struct smb2_read_rsp, Buffer), 6121e2b76ab8SNamjae Jeon aux_payload_buf, nbytes); 6122e2b76ab8SNamjae Jeon if (err) 6123e2b76ab8SNamjae Jeon goto out; 6124e2b76ab8SNamjae Jeon } else { 6125e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, (void *)rsp, 6126e2b76ab8SNamjae Jeon offsetof(struct smb2_read_rsp, Buffer)); 6127e2b76ab8SNamjae Jeon if (err) 6128e2b76ab8SNamjae Jeon goto out; 612938c8a9a5SSteve French } 613038c8a9a5SSteve French 613138c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(17); 613238c8a9a5SSteve French rsp->DataOffset = 80; 613338c8a9a5SSteve French rsp->Reserved = 0; 613438c8a9a5SSteve French rsp->DataLength = cpu_to_le32(nbytes); 613538c8a9a5SSteve French rsp->DataRemaining = 0; 613638c8a9a5SSteve French rsp->Flags = 0; 613738c8a9a5SSteve French return 0; 613838c8a9a5SSteve French 613938c8a9a5SSteve French out: 614038c8a9a5SSteve French rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; 614138c8a9a5SSteve French smb2_set_err_rsp(work); 614238c8a9a5SSteve French kvfree(rpc_resp); 614338c8a9a5SSteve French return err; 614438c8a9a5SSteve French } 614538c8a9a5SSteve French 614638c8a9a5SSteve French static int smb2_set_remote_key_for_rdma(struct ksmbd_work *work, 614738c8a9a5SSteve French struct smb2_buffer_desc_v1 *desc, 614838c8a9a5SSteve French __le32 Channel, 614938c8a9a5SSteve French __le16 ChannelInfoLength) 615038c8a9a5SSteve French { 615138c8a9a5SSteve French unsigned int i, ch_count; 615238c8a9a5SSteve French 615338c8a9a5SSteve French if (work->conn->dialect == SMB30_PROT_ID && 615438c8a9a5SSteve French Channel != SMB2_CHANNEL_RDMA_V1) 615538c8a9a5SSteve French return -EINVAL; 615638c8a9a5SSteve French 615738c8a9a5SSteve French ch_count = le16_to_cpu(ChannelInfoLength) / sizeof(*desc); 615838c8a9a5SSteve French if (ksmbd_debug_types & KSMBD_DEBUG_RDMA) { 615938c8a9a5SSteve French for (i = 0; i < ch_count; i++) { 616038c8a9a5SSteve French pr_info("RDMA r/w request %#x: token %#x, length %#x\n", 616138c8a9a5SSteve French i, 616238c8a9a5SSteve French le32_to_cpu(desc[i].token), 616338c8a9a5SSteve French le32_to_cpu(desc[i].length)); 616438c8a9a5SSteve French } 616538c8a9a5SSteve French } 616638c8a9a5SSteve French if (!ch_count) 616738c8a9a5SSteve French return -EINVAL; 616838c8a9a5SSteve French 616938c8a9a5SSteve French work->need_invalidate_rkey = 617038c8a9a5SSteve French (Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE); 617138c8a9a5SSteve French if (Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE) 617238c8a9a5SSteve French work->remote_key = le32_to_cpu(desc->token); 617338c8a9a5SSteve French return 0; 617438c8a9a5SSteve French } 617538c8a9a5SSteve French 617638c8a9a5SSteve French static ssize_t smb2_read_rdma_channel(struct ksmbd_work *work, 617738c8a9a5SSteve French struct smb2_read_req *req, void *data_buf, 617838c8a9a5SSteve French size_t length) 617938c8a9a5SSteve French { 618038c8a9a5SSteve French int err; 618138c8a9a5SSteve French 618238c8a9a5SSteve French err = ksmbd_conn_rdma_write(work->conn, data_buf, length, 618338c8a9a5SSteve French (struct smb2_buffer_desc_v1 *) 618438c8a9a5SSteve French ((char *)req + le16_to_cpu(req->ReadChannelInfoOffset)), 618538c8a9a5SSteve French le16_to_cpu(req->ReadChannelInfoLength)); 618638c8a9a5SSteve French if (err) 618738c8a9a5SSteve French return err; 618838c8a9a5SSteve French 618938c8a9a5SSteve French return length; 619038c8a9a5SSteve French } 619138c8a9a5SSteve French 619238c8a9a5SSteve French /** 619338c8a9a5SSteve French * smb2_read() - handler for smb2 read from file 619438c8a9a5SSteve French * @work: smb work containing read command buffer 619538c8a9a5SSteve French * 619638c8a9a5SSteve French * Return: 0 on success, otherwise error 619738c8a9a5SSteve French */ 619838c8a9a5SSteve French int smb2_read(struct ksmbd_work *work) 619938c8a9a5SSteve French { 620038c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 620138c8a9a5SSteve French struct smb2_read_req *req; 620238c8a9a5SSteve French struct smb2_read_rsp *rsp; 620338c8a9a5SSteve French struct ksmbd_file *fp = NULL; 620438c8a9a5SSteve French loff_t offset; 620538c8a9a5SSteve French size_t length, mincount; 620638c8a9a5SSteve French ssize_t nbytes = 0, remain_bytes = 0; 620738c8a9a5SSteve French int err = 0; 620838c8a9a5SSteve French bool is_rdma_channel = false; 620938c8a9a5SSteve French unsigned int max_read_size = conn->vals->max_read_size; 6210e2b76ab8SNamjae Jeon unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; 6211e2b76ab8SNamjae Jeon void *aux_payload_buf; 621238c8a9a5SSteve French 621338c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 621438c8a9a5SSteve French KSMBD_SHARE_FLAG_PIPE)) { 621538c8a9a5SSteve French ksmbd_debug(SMB, "IPC pipe read request\n"); 621638c8a9a5SSteve French return smb2_read_pipe(work); 621738c8a9a5SSteve French } 621838c8a9a5SSteve French 6219e2b76ab8SNamjae Jeon if (work->next_smb2_rcv_hdr_off) { 6220e2b76ab8SNamjae Jeon req = ksmbd_req_buf_next(work); 6221e2b76ab8SNamjae Jeon rsp = ksmbd_resp_buf_next(work); 6222e2b76ab8SNamjae Jeon if (!has_file_id(req->VolatileFileId)) { 6223e2b76ab8SNamjae Jeon ksmbd_debug(SMB, "Compound request set FID = %llu\n", 6224e2b76ab8SNamjae Jeon work->compound_fid); 6225e2b76ab8SNamjae Jeon id = work->compound_fid; 6226e2b76ab8SNamjae Jeon pid = work->compound_pfid; 6227e2b76ab8SNamjae Jeon } 6228e2b76ab8SNamjae Jeon } else { 6229e2b76ab8SNamjae Jeon req = smb2_get_msg(work->request_buf); 6230e2b76ab8SNamjae Jeon rsp = smb2_get_msg(work->response_buf); 6231e2b76ab8SNamjae Jeon } 6232e2b76ab8SNamjae Jeon 6233e2b76ab8SNamjae Jeon if (!has_file_id(id)) { 6234e2b76ab8SNamjae Jeon id = req->VolatileFileId; 6235e2b76ab8SNamjae Jeon pid = req->PersistentFileId; 6236e2b76ab8SNamjae Jeon } 6237e2b76ab8SNamjae Jeon 623838c8a9a5SSteve French if (req->Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE || 623938c8a9a5SSteve French req->Channel == SMB2_CHANNEL_RDMA_V1) { 624038c8a9a5SSteve French is_rdma_channel = true; 624138c8a9a5SSteve French max_read_size = get_smbd_max_read_write_size(); 624238c8a9a5SSteve French } 624338c8a9a5SSteve French 624438c8a9a5SSteve French if (is_rdma_channel == true) { 624538c8a9a5SSteve French unsigned int ch_offset = le16_to_cpu(req->ReadChannelInfoOffset); 624638c8a9a5SSteve French 624738c8a9a5SSteve French if (ch_offset < offsetof(struct smb2_read_req, Buffer)) { 624838c8a9a5SSteve French err = -EINVAL; 624938c8a9a5SSteve French goto out; 625038c8a9a5SSteve French } 625138c8a9a5SSteve French err = smb2_set_remote_key_for_rdma(work, 625238c8a9a5SSteve French (struct smb2_buffer_desc_v1 *) 625338c8a9a5SSteve French ((char *)req + ch_offset), 625438c8a9a5SSteve French req->Channel, 625538c8a9a5SSteve French req->ReadChannelInfoLength); 625638c8a9a5SSteve French if (err) 625738c8a9a5SSteve French goto out; 625838c8a9a5SSteve French } 625938c8a9a5SSteve French 6260e2b76ab8SNamjae Jeon fp = ksmbd_lookup_fd_slow(work, id, pid); 626138c8a9a5SSteve French if (!fp) { 626238c8a9a5SSteve French err = -ENOENT; 626338c8a9a5SSteve French goto out; 626438c8a9a5SSteve French } 626538c8a9a5SSteve French 626638c8a9a5SSteve French if (!(fp->daccess & (FILE_READ_DATA_LE | FILE_READ_ATTRIBUTES_LE))) { 626738c8a9a5SSteve French pr_err("Not permitted to read : 0x%x\n", fp->daccess); 626838c8a9a5SSteve French err = -EACCES; 626938c8a9a5SSteve French goto out; 627038c8a9a5SSteve French } 627138c8a9a5SSteve French 627238c8a9a5SSteve French offset = le64_to_cpu(req->Offset); 627338c8a9a5SSteve French length = le32_to_cpu(req->Length); 627438c8a9a5SSteve French mincount = le32_to_cpu(req->MinimumCount); 627538c8a9a5SSteve French 627638c8a9a5SSteve French if (length > max_read_size) { 627738c8a9a5SSteve French ksmbd_debug(SMB, "limiting read size to max size(%u)\n", 627838c8a9a5SSteve French max_read_size); 627938c8a9a5SSteve French err = -EINVAL; 628038c8a9a5SSteve French goto out; 628138c8a9a5SSteve French } 628238c8a9a5SSteve French 628338c8a9a5SSteve French ksmbd_debug(SMB, "filename %pD, offset %lld, len %zu\n", 628438c8a9a5SSteve French fp->filp, offset, length); 628538c8a9a5SSteve French 6286e2b76ab8SNamjae Jeon aux_payload_buf = kvzalloc(length, GFP_KERNEL); 6287e2b76ab8SNamjae Jeon if (!aux_payload_buf) { 628838c8a9a5SSteve French err = -ENOMEM; 628938c8a9a5SSteve French goto out; 629038c8a9a5SSteve French } 629138c8a9a5SSteve French 6292e2b76ab8SNamjae Jeon nbytes = ksmbd_vfs_read(work, fp, length, &offset, aux_payload_buf); 629338c8a9a5SSteve French if (nbytes < 0) { 629438c8a9a5SSteve French err = nbytes; 629538c8a9a5SSteve French goto out; 629638c8a9a5SSteve French } 629738c8a9a5SSteve French 629838c8a9a5SSteve French if ((nbytes == 0 && length != 0) || nbytes < mincount) { 6299e2b76ab8SNamjae Jeon kvfree(aux_payload_buf); 630038c8a9a5SSteve French rsp->hdr.Status = STATUS_END_OF_FILE; 630138c8a9a5SSteve French smb2_set_err_rsp(work); 630238c8a9a5SSteve French ksmbd_fd_put(work, fp); 630338c8a9a5SSteve French return 0; 630438c8a9a5SSteve French } 630538c8a9a5SSteve French 630638c8a9a5SSteve French ksmbd_debug(SMB, "nbytes %zu, offset %lld mincount %zu\n", 630738c8a9a5SSteve French nbytes, offset, mincount); 630838c8a9a5SSteve French 630938c8a9a5SSteve French if (is_rdma_channel == true) { 631038c8a9a5SSteve French /* write data to the client using rdma channel */ 631138c8a9a5SSteve French remain_bytes = smb2_read_rdma_channel(work, req, 6312e2b76ab8SNamjae Jeon aux_payload_buf, 631338c8a9a5SSteve French nbytes); 6314e2b76ab8SNamjae Jeon kvfree(aux_payload_buf); 6315*59d8d24fSNamjae Jeon aux_payload_buf = NULL; 631638c8a9a5SSteve French nbytes = 0; 631738c8a9a5SSteve French if (remain_bytes < 0) { 631838c8a9a5SSteve French err = (int)remain_bytes; 631938c8a9a5SSteve French goto out; 632038c8a9a5SSteve French } 632138c8a9a5SSteve French } 632238c8a9a5SSteve French 632338c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(17); 632438c8a9a5SSteve French rsp->DataOffset = 80; 632538c8a9a5SSteve French rsp->Reserved = 0; 632638c8a9a5SSteve French rsp->DataLength = cpu_to_le32(nbytes); 632738c8a9a5SSteve French rsp->DataRemaining = cpu_to_le32(remain_bytes); 632838c8a9a5SSteve French rsp->Flags = 0; 6329e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp_read(work, (void *)rsp, 6330e2b76ab8SNamjae Jeon offsetof(struct smb2_read_rsp, Buffer), 6331e2b76ab8SNamjae Jeon aux_payload_buf, nbytes); 6332e2b76ab8SNamjae Jeon if (err) 6333e2b76ab8SNamjae Jeon goto out; 633438c8a9a5SSteve French ksmbd_fd_put(work, fp); 633538c8a9a5SSteve French return 0; 633638c8a9a5SSteve French 633738c8a9a5SSteve French out: 633838c8a9a5SSteve French if (err) { 633938c8a9a5SSteve French if (err == -EISDIR) 634038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_DEVICE_REQUEST; 634138c8a9a5SSteve French else if (err == -EAGAIN) 634238c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; 634338c8a9a5SSteve French else if (err == -ENOENT) 634438c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 634538c8a9a5SSteve French else if (err == -EACCES) 634638c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 634738c8a9a5SSteve French else if (err == -ESHARE) 634838c8a9a5SSteve French rsp->hdr.Status = STATUS_SHARING_VIOLATION; 634938c8a9a5SSteve French else if (err == -EINVAL) 635038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 635138c8a9a5SSteve French else 635238c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 635338c8a9a5SSteve French 635438c8a9a5SSteve French smb2_set_err_rsp(work); 635538c8a9a5SSteve French } 635638c8a9a5SSteve French ksmbd_fd_put(work, fp); 635738c8a9a5SSteve French return err; 635838c8a9a5SSteve French } 635938c8a9a5SSteve French 636038c8a9a5SSteve French /** 636138c8a9a5SSteve French * smb2_write_pipe() - handler for smb2 write on IPC pipe 636238c8a9a5SSteve French * @work: smb work containing write IPC pipe command buffer 636338c8a9a5SSteve French * 636438c8a9a5SSteve French * Return: 0 on success, otherwise error 636538c8a9a5SSteve French */ 636638c8a9a5SSteve French static noinline int smb2_write_pipe(struct ksmbd_work *work) 636738c8a9a5SSteve French { 63687b7d709eSNamjae Jeon struct smb2_write_req *req; 63697b7d709eSNamjae Jeon struct smb2_write_rsp *rsp; 637038c8a9a5SSteve French struct ksmbd_rpc_command *rpc_resp; 637138c8a9a5SSteve French u64 id = 0; 637238c8a9a5SSteve French int err = 0, ret = 0; 637338c8a9a5SSteve French char *data_buf; 637438c8a9a5SSteve French size_t length; 637538c8a9a5SSteve French 63767b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 63777b7d709eSNamjae Jeon 637838c8a9a5SSteve French length = le32_to_cpu(req->Length); 637938c8a9a5SSteve French id = req->VolatileFileId; 638038c8a9a5SSteve French 638138c8a9a5SSteve French if ((u64)le16_to_cpu(req->DataOffset) + length > 638238c8a9a5SSteve French get_rfc1002_len(work->request_buf)) { 638338c8a9a5SSteve French pr_err("invalid write data offset %u, smb_len %u\n", 638438c8a9a5SSteve French le16_to_cpu(req->DataOffset), 638538c8a9a5SSteve French get_rfc1002_len(work->request_buf)); 638638c8a9a5SSteve French err = -EINVAL; 638738c8a9a5SSteve French goto out; 638838c8a9a5SSteve French } 638938c8a9a5SSteve French 639038c8a9a5SSteve French data_buf = (char *)(((char *)&req->hdr.ProtocolId) + 639138c8a9a5SSteve French le16_to_cpu(req->DataOffset)); 639238c8a9a5SSteve French 639338c8a9a5SSteve French rpc_resp = ksmbd_rpc_write(work->sess, id, data_buf, length); 639438c8a9a5SSteve French if (rpc_resp) { 639538c8a9a5SSteve French if (rpc_resp->flags == KSMBD_RPC_ENOTIMPLEMENTED) { 639638c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_SUPPORTED; 639738c8a9a5SSteve French kvfree(rpc_resp); 639838c8a9a5SSteve French smb2_set_err_rsp(work); 639938c8a9a5SSteve French return -EOPNOTSUPP; 640038c8a9a5SSteve French } 640138c8a9a5SSteve French if (rpc_resp->flags != KSMBD_RPC_OK) { 640238c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 640338c8a9a5SSteve French smb2_set_err_rsp(work); 640438c8a9a5SSteve French kvfree(rpc_resp); 640538c8a9a5SSteve French return ret; 640638c8a9a5SSteve French } 640738c8a9a5SSteve French kvfree(rpc_resp); 640838c8a9a5SSteve French } 640938c8a9a5SSteve French 641038c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(17); 641138c8a9a5SSteve French rsp->DataOffset = 0; 641238c8a9a5SSteve French rsp->Reserved = 0; 641338c8a9a5SSteve French rsp->DataLength = cpu_to_le32(length); 641438c8a9a5SSteve French rsp->DataRemaining = 0; 641538c8a9a5SSteve French rsp->Reserved2 = 0; 6416e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, (void *)rsp, 6417e2b76ab8SNamjae Jeon offsetof(struct smb2_write_rsp, Buffer)); 641838c8a9a5SSteve French out: 641938c8a9a5SSteve French if (err) { 642038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 642138c8a9a5SSteve French smb2_set_err_rsp(work); 642238c8a9a5SSteve French } 642338c8a9a5SSteve French 642438c8a9a5SSteve French return err; 642538c8a9a5SSteve French } 642638c8a9a5SSteve French 642738c8a9a5SSteve French static ssize_t smb2_write_rdma_channel(struct ksmbd_work *work, 642838c8a9a5SSteve French struct smb2_write_req *req, 642938c8a9a5SSteve French struct ksmbd_file *fp, 643038c8a9a5SSteve French loff_t offset, size_t length, bool sync) 643138c8a9a5SSteve French { 643238c8a9a5SSteve French char *data_buf; 643338c8a9a5SSteve French int ret; 643438c8a9a5SSteve French ssize_t nbytes; 643538c8a9a5SSteve French 643681a94b27SNamjae Jeon data_buf = kvzalloc(length, GFP_KERNEL); 643738c8a9a5SSteve French if (!data_buf) 643838c8a9a5SSteve French return -ENOMEM; 643938c8a9a5SSteve French 644038c8a9a5SSteve French ret = ksmbd_conn_rdma_read(work->conn, data_buf, length, 644138c8a9a5SSteve French (struct smb2_buffer_desc_v1 *) 644238c8a9a5SSteve French ((char *)req + le16_to_cpu(req->WriteChannelInfoOffset)), 644338c8a9a5SSteve French le16_to_cpu(req->WriteChannelInfoLength)); 644438c8a9a5SSteve French if (ret < 0) { 644538c8a9a5SSteve French kvfree(data_buf); 644638c8a9a5SSteve French return ret; 644738c8a9a5SSteve French } 644838c8a9a5SSteve French 644938c8a9a5SSteve French ret = ksmbd_vfs_write(work, fp, data_buf, length, &offset, sync, &nbytes); 645038c8a9a5SSteve French kvfree(data_buf); 645138c8a9a5SSteve French if (ret < 0) 645238c8a9a5SSteve French return ret; 645338c8a9a5SSteve French 645438c8a9a5SSteve French return nbytes; 645538c8a9a5SSteve French } 645638c8a9a5SSteve French 645738c8a9a5SSteve French /** 645838c8a9a5SSteve French * smb2_write() - handler for smb2 write from file 645938c8a9a5SSteve French * @work: smb work containing write command buffer 646038c8a9a5SSteve French * 646138c8a9a5SSteve French * Return: 0 on success, otherwise error 646238c8a9a5SSteve French */ 646338c8a9a5SSteve French int smb2_write(struct ksmbd_work *work) 646438c8a9a5SSteve French { 646538c8a9a5SSteve French struct smb2_write_req *req; 646638c8a9a5SSteve French struct smb2_write_rsp *rsp; 646738c8a9a5SSteve French struct ksmbd_file *fp = NULL; 646838c8a9a5SSteve French loff_t offset; 646938c8a9a5SSteve French size_t length; 647038c8a9a5SSteve French ssize_t nbytes; 647138c8a9a5SSteve French char *data_buf; 647238c8a9a5SSteve French bool writethrough = false, is_rdma_channel = false; 647338c8a9a5SSteve French int err = 0; 647438c8a9a5SSteve French unsigned int max_write_size = work->conn->vals->max_write_size; 647538c8a9a5SSteve French 647638c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 647738c8a9a5SSteve French 647838c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_PIPE)) { 647938c8a9a5SSteve French ksmbd_debug(SMB, "IPC pipe write request\n"); 648038c8a9a5SSteve French return smb2_write_pipe(work); 648138c8a9a5SSteve French } 648238c8a9a5SSteve French 648338c8a9a5SSteve French offset = le64_to_cpu(req->Offset); 648438c8a9a5SSteve French length = le32_to_cpu(req->Length); 648538c8a9a5SSteve French 648638c8a9a5SSteve French if (req->Channel == SMB2_CHANNEL_RDMA_V1 || 648738c8a9a5SSteve French req->Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE) { 648838c8a9a5SSteve French is_rdma_channel = true; 648938c8a9a5SSteve French max_write_size = get_smbd_max_read_write_size(); 649038c8a9a5SSteve French length = le32_to_cpu(req->RemainingBytes); 649138c8a9a5SSteve French } 649238c8a9a5SSteve French 649338c8a9a5SSteve French if (is_rdma_channel == true) { 649438c8a9a5SSteve French unsigned int ch_offset = le16_to_cpu(req->WriteChannelInfoOffset); 649538c8a9a5SSteve French 649638c8a9a5SSteve French if (req->Length != 0 || req->DataOffset != 0 || 649738c8a9a5SSteve French ch_offset < offsetof(struct smb2_write_req, Buffer)) { 649838c8a9a5SSteve French err = -EINVAL; 649938c8a9a5SSteve French goto out; 650038c8a9a5SSteve French } 650138c8a9a5SSteve French err = smb2_set_remote_key_for_rdma(work, 650238c8a9a5SSteve French (struct smb2_buffer_desc_v1 *) 650338c8a9a5SSteve French ((char *)req + ch_offset), 650438c8a9a5SSteve French req->Channel, 650538c8a9a5SSteve French req->WriteChannelInfoLength); 650638c8a9a5SSteve French if (err) 650738c8a9a5SSteve French goto out; 650838c8a9a5SSteve French } 650938c8a9a5SSteve French 651038c8a9a5SSteve French if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 651138c8a9a5SSteve French ksmbd_debug(SMB, "User does not have write permission\n"); 651238c8a9a5SSteve French err = -EACCES; 651338c8a9a5SSteve French goto out; 651438c8a9a5SSteve French } 651538c8a9a5SSteve French 651638c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); 651738c8a9a5SSteve French if (!fp) { 651838c8a9a5SSteve French err = -ENOENT; 651938c8a9a5SSteve French goto out; 652038c8a9a5SSteve French } 652138c8a9a5SSteve French 652238c8a9a5SSteve French if (!(fp->daccess & (FILE_WRITE_DATA_LE | FILE_READ_ATTRIBUTES_LE))) { 652338c8a9a5SSteve French pr_err("Not permitted to write : 0x%x\n", fp->daccess); 652438c8a9a5SSteve French err = -EACCES; 652538c8a9a5SSteve French goto out; 652638c8a9a5SSteve French } 652738c8a9a5SSteve French 652838c8a9a5SSteve French if (length > max_write_size) { 652938c8a9a5SSteve French ksmbd_debug(SMB, "limiting write size to max size(%u)\n", 653038c8a9a5SSteve French max_write_size); 653138c8a9a5SSteve French err = -EINVAL; 653238c8a9a5SSteve French goto out; 653338c8a9a5SSteve French } 653438c8a9a5SSteve French 653538c8a9a5SSteve French ksmbd_debug(SMB, "flags %u\n", le32_to_cpu(req->Flags)); 653638c8a9a5SSteve French if (le32_to_cpu(req->Flags) & SMB2_WRITEFLAG_WRITE_THROUGH) 653738c8a9a5SSteve French writethrough = true; 653838c8a9a5SSteve French 653938c8a9a5SSteve French if (is_rdma_channel == false) { 654038c8a9a5SSteve French if (le16_to_cpu(req->DataOffset) < 654138c8a9a5SSteve French offsetof(struct smb2_write_req, Buffer)) { 654238c8a9a5SSteve French err = -EINVAL; 654338c8a9a5SSteve French goto out; 654438c8a9a5SSteve French } 654538c8a9a5SSteve French 654638c8a9a5SSteve French data_buf = (char *)(((char *)&req->hdr.ProtocolId) + 654738c8a9a5SSteve French le16_to_cpu(req->DataOffset)); 654838c8a9a5SSteve French 654938c8a9a5SSteve French ksmbd_debug(SMB, "filename %pD, offset %lld, len %zu\n", 655038c8a9a5SSteve French fp->filp, offset, length); 655138c8a9a5SSteve French err = ksmbd_vfs_write(work, fp, data_buf, length, &offset, 655238c8a9a5SSteve French writethrough, &nbytes); 655338c8a9a5SSteve French if (err < 0) 655438c8a9a5SSteve French goto out; 655538c8a9a5SSteve French } else { 655638c8a9a5SSteve French /* read data from the client using rdma channel, and 655738c8a9a5SSteve French * write the data. 655838c8a9a5SSteve French */ 655938c8a9a5SSteve French nbytes = smb2_write_rdma_channel(work, req, fp, offset, length, 656038c8a9a5SSteve French writethrough); 656138c8a9a5SSteve French if (nbytes < 0) { 656238c8a9a5SSteve French err = (int)nbytes; 656338c8a9a5SSteve French goto out; 656438c8a9a5SSteve French } 656538c8a9a5SSteve French } 656638c8a9a5SSteve French 656738c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(17); 656838c8a9a5SSteve French rsp->DataOffset = 0; 656938c8a9a5SSteve French rsp->Reserved = 0; 657038c8a9a5SSteve French rsp->DataLength = cpu_to_le32(nbytes); 657138c8a9a5SSteve French rsp->DataRemaining = 0; 657238c8a9a5SSteve French rsp->Reserved2 = 0; 6573e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, rsp, offsetof(struct smb2_write_rsp, Buffer)); 6574e2b76ab8SNamjae Jeon if (err) 6575e2b76ab8SNamjae Jeon goto out; 657638c8a9a5SSteve French ksmbd_fd_put(work, fp); 657738c8a9a5SSteve French return 0; 657838c8a9a5SSteve French 657938c8a9a5SSteve French out: 658038c8a9a5SSteve French if (err == -EAGAIN) 658138c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; 658238c8a9a5SSteve French else if (err == -ENOSPC || err == -EFBIG) 658338c8a9a5SSteve French rsp->hdr.Status = STATUS_DISK_FULL; 658438c8a9a5SSteve French else if (err == -ENOENT) 658538c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 658638c8a9a5SSteve French else if (err == -EACCES) 658738c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 658838c8a9a5SSteve French else if (err == -ESHARE) 658938c8a9a5SSteve French rsp->hdr.Status = STATUS_SHARING_VIOLATION; 659038c8a9a5SSteve French else if (err == -EINVAL) 659138c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 659238c8a9a5SSteve French else 659338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 659438c8a9a5SSteve French 659538c8a9a5SSteve French smb2_set_err_rsp(work); 659638c8a9a5SSteve French ksmbd_fd_put(work, fp); 659738c8a9a5SSteve French return err; 659838c8a9a5SSteve French } 659938c8a9a5SSteve French 660038c8a9a5SSteve French /** 660138c8a9a5SSteve French * smb2_flush() - handler for smb2 flush file - fsync 660238c8a9a5SSteve French * @work: smb work containing flush command buffer 660338c8a9a5SSteve French * 660438c8a9a5SSteve French * Return: 0 on success, otherwise error 660538c8a9a5SSteve French */ 660638c8a9a5SSteve French int smb2_flush(struct ksmbd_work *work) 660738c8a9a5SSteve French { 660838c8a9a5SSteve French struct smb2_flush_req *req; 660938c8a9a5SSteve French struct smb2_flush_rsp *rsp; 661038c8a9a5SSteve French int err; 661138c8a9a5SSteve French 661238c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 661338c8a9a5SSteve French 661438c8a9a5SSteve French ksmbd_debug(SMB, "SMB2_FLUSH called for fid %llu\n", req->VolatileFileId); 661538c8a9a5SSteve French 661638c8a9a5SSteve French err = ksmbd_vfs_fsync(work, req->VolatileFileId, req->PersistentFileId); 661738c8a9a5SSteve French if (err) 661838c8a9a5SSteve French goto out; 661938c8a9a5SSteve French 662038c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(4); 662138c8a9a5SSteve French rsp->Reserved = 0; 6622e2b76ab8SNamjae Jeon return ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_flush_rsp)); 662338c8a9a5SSteve French 662438c8a9a5SSteve French out: 662538c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 662638c8a9a5SSteve French smb2_set_err_rsp(work); 662738c8a9a5SSteve French return err; 662838c8a9a5SSteve French } 662938c8a9a5SSteve French 663038c8a9a5SSteve French /** 663138c8a9a5SSteve French * smb2_cancel() - handler for smb2 cancel command 663238c8a9a5SSteve French * @work: smb work containing cancel command buffer 663338c8a9a5SSteve French * 663438c8a9a5SSteve French * Return: 0 on success, otherwise error 663538c8a9a5SSteve French */ 663638c8a9a5SSteve French int smb2_cancel(struct ksmbd_work *work) 663738c8a9a5SSteve French { 663838c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 663938c8a9a5SSteve French struct smb2_hdr *hdr = smb2_get_msg(work->request_buf); 664038c8a9a5SSteve French struct smb2_hdr *chdr; 664138c8a9a5SSteve French struct ksmbd_work *iter; 664238c8a9a5SSteve French struct list_head *command_list; 664338c8a9a5SSteve French 66447b7d709eSNamjae Jeon if (work->next_smb2_rcv_hdr_off) 66457b7d709eSNamjae Jeon hdr = ksmbd_resp_buf_next(work); 66467b7d709eSNamjae Jeon 664738c8a9a5SSteve French ksmbd_debug(SMB, "smb2 cancel called on mid %llu, async flags 0x%x\n", 664838c8a9a5SSteve French hdr->MessageId, hdr->Flags); 664938c8a9a5SSteve French 665038c8a9a5SSteve French if (hdr->Flags & SMB2_FLAGS_ASYNC_COMMAND) { 665138c8a9a5SSteve French command_list = &conn->async_requests; 665238c8a9a5SSteve French 665338c8a9a5SSteve French spin_lock(&conn->request_lock); 665438c8a9a5SSteve French list_for_each_entry(iter, command_list, 665538c8a9a5SSteve French async_request_entry) { 665638c8a9a5SSteve French chdr = smb2_get_msg(iter->request_buf); 665738c8a9a5SSteve French 665838c8a9a5SSteve French if (iter->async_id != 665938c8a9a5SSteve French le64_to_cpu(hdr->Id.AsyncId)) 666038c8a9a5SSteve French continue; 666138c8a9a5SSteve French 666238c8a9a5SSteve French ksmbd_debug(SMB, 666338c8a9a5SSteve French "smb2 with AsyncId %llu cancelled command = 0x%x\n", 666438c8a9a5SSteve French le64_to_cpu(hdr->Id.AsyncId), 666538c8a9a5SSteve French le16_to_cpu(chdr->Command)); 666638c8a9a5SSteve French iter->state = KSMBD_WORK_CANCELLED; 666738c8a9a5SSteve French if (iter->cancel_fn) 666838c8a9a5SSteve French iter->cancel_fn(iter->cancel_argv); 666938c8a9a5SSteve French break; 667038c8a9a5SSteve French } 667138c8a9a5SSteve French spin_unlock(&conn->request_lock); 667238c8a9a5SSteve French } else { 667338c8a9a5SSteve French command_list = &conn->requests; 667438c8a9a5SSteve French 667538c8a9a5SSteve French spin_lock(&conn->request_lock); 667638c8a9a5SSteve French list_for_each_entry(iter, command_list, request_entry) { 667738c8a9a5SSteve French chdr = smb2_get_msg(iter->request_buf); 667838c8a9a5SSteve French 667938c8a9a5SSteve French if (chdr->MessageId != hdr->MessageId || 668038c8a9a5SSteve French iter == work) 668138c8a9a5SSteve French continue; 668238c8a9a5SSteve French 668338c8a9a5SSteve French ksmbd_debug(SMB, 668438c8a9a5SSteve French "smb2 with mid %llu cancelled command = 0x%x\n", 668538c8a9a5SSteve French le64_to_cpu(hdr->MessageId), 668638c8a9a5SSteve French le16_to_cpu(chdr->Command)); 668738c8a9a5SSteve French iter->state = KSMBD_WORK_CANCELLED; 668838c8a9a5SSteve French break; 668938c8a9a5SSteve French } 669038c8a9a5SSteve French spin_unlock(&conn->request_lock); 669138c8a9a5SSteve French } 669238c8a9a5SSteve French 669338c8a9a5SSteve French /* For SMB2_CANCEL command itself send no response*/ 669438c8a9a5SSteve French work->send_no_response = 1; 669538c8a9a5SSteve French return 0; 669638c8a9a5SSteve French } 669738c8a9a5SSteve French 669838c8a9a5SSteve French struct file_lock *smb_flock_init(struct file *f) 669938c8a9a5SSteve French { 670038c8a9a5SSteve French struct file_lock *fl; 670138c8a9a5SSteve French 670238c8a9a5SSteve French fl = locks_alloc_lock(); 670338c8a9a5SSteve French if (!fl) 670438c8a9a5SSteve French goto out; 670538c8a9a5SSteve French 670638c8a9a5SSteve French locks_init_lock(fl); 670738c8a9a5SSteve French 670838c8a9a5SSteve French fl->fl_owner = f; 670938c8a9a5SSteve French fl->fl_pid = current->tgid; 671038c8a9a5SSteve French fl->fl_file = f; 671138c8a9a5SSteve French fl->fl_flags = FL_POSIX; 671238c8a9a5SSteve French fl->fl_ops = NULL; 671338c8a9a5SSteve French fl->fl_lmops = NULL; 671438c8a9a5SSteve French 671538c8a9a5SSteve French out: 671638c8a9a5SSteve French return fl; 671738c8a9a5SSteve French } 671838c8a9a5SSteve French 671938c8a9a5SSteve French static int smb2_set_flock_flags(struct file_lock *flock, int flags) 672038c8a9a5SSteve French { 672138c8a9a5SSteve French int cmd = -EINVAL; 672238c8a9a5SSteve French 672338c8a9a5SSteve French /* Checking for wrong flag combination during lock request*/ 672438c8a9a5SSteve French switch (flags) { 672538c8a9a5SSteve French case SMB2_LOCKFLAG_SHARED: 672638c8a9a5SSteve French ksmbd_debug(SMB, "received shared request\n"); 672738c8a9a5SSteve French cmd = F_SETLKW; 672838c8a9a5SSteve French flock->fl_type = F_RDLCK; 672938c8a9a5SSteve French flock->fl_flags |= FL_SLEEP; 673038c8a9a5SSteve French break; 673138c8a9a5SSteve French case SMB2_LOCKFLAG_EXCLUSIVE: 673238c8a9a5SSteve French ksmbd_debug(SMB, "received exclusive request\n"); 673338c8a9a5SSteve French cmd = F_SETLKW; 673438c8a9a5SSteve French flock->fl_type = F_WRLCK; 673538c8a9a5SSteve French flock->fl_flags |= FL_SLEEP; 673638c8a9a5SSteve French break; 673738c8a9a5SSteve French case SMB2_LOCKFLAG_SHARED | SMB2_LOCKFLAG_FAIL_IMMEDIATELY: 673838c8a9a5SSteve French ksmbd_debug(SMB, 673938c8a9a5SSteve French "received shared & fail immediately request\n"); 674038c8a9a5SSteve French cmd = F_SETLK; 674138c8a9a5SSteve French flock->fl_type = F_RDLCK; 674238c8a9a5SSteve French break; 674338c8a9a5SSteve French case SMB2_LOCKFLAG_EXCLUSIVE | SMB2_LOCKFLAG_FAIL_IMMEDIATELY: 674438c8a9a5SSteve French ksmbd_debug(SMB, 674538c8a9a5SSteve French "received exclusive & fail immediately request\n"); 674638c8a9a5SSteve French cmd = F_SETLK; 674738c8a9a5SSteve French flock->fl_type = F_WRLCK; 674838c8a9a5SSteve French break; 674938c8a9a5SSteve French case SMB2_LOCKFLAG_UNLOCK: 675038c8a9a5SSteve French ksmbd_debug(SMB, "received unlock request\n"); 675138c8a9a5SSteve French flock->fl_type = F_UNLCK; 675238c8a9a5SSteve French cmd = F_SETLK; 675338c8a9a5SSteve French break; 675438c8a9a5SSteve French } 675538c8a9a5SSteve French 675638c8a9a5SSteve French return cmd; 675738c8a9a5SSteve French } 675838c8a9a5SSteve French 675938c8a9a5SSteve French static struct ksmbd_lock *smb2_lock_init(struct file_lock *flock, 676038c8a9a5SSteve French unsigned int cmd, int flags, 676138c8a9a5SSteve French struct list_head *lock_list) 676238c8a9a5SSteve French { 676338c8a9a5SSteve French struct ksmbd_lock *lock; 676438c8a9a5SSteve French 676538c8a9a5SSteve French lock = kzalloc(sizeof(struct ksmbd_lock), GFP_KERNEL); 676638c8a9a5SSteve French if (!lock) 676738c8a9a5SSteve French return NULL; 676838c8a9a5SSteve French 676938c8a9a5SSteve French lock->cmd = cmd; 677038c8a9a5SSteve French lock->fl = flock; 677138c8a9a5SSteve French lock->start = flock->fl_start; 677238c8a9a5SSteve French lock->end = flock->fl_end; 677338c8a9a5SSteve French lock->flags = flags; 677438c8a9a5SSteve French if (lock->start == lock->end) 677538c8a9a5SSteve French lock->zero_len = 1; 677638c8a9a5SSteve French INIT_LIST_HEAD(&lock->clist); 677738c8a9a5SSteve French INIT_LIST_HEAD(&lock->flist); 677838c8a9a5SSteve French INIT_LIST_HEAD(&lock->llist); 677938c8a9a5SSteve French list_add_tail(&lock->llist, lock_list); 678038c8a9a5SSteve French 678138c8a9a5SSteve French return lock; 678238c8a9a5SSteve French } 678338c8a9a5SSteve French 678438c8a9a5SSteve French static void smb2_remove_blocked_lock(void **argv) 678538c8a9a5SSteve French { 678638c8a9a5SSteve French struct file_lock *flock = (struct file_lock *)argv[0]; 678738c8a9a5SSteve French 678838c8a9a5SSteve French ksmbd_vfs_posix_lock_unblock(flock); 678938c8a9a5SSteve French wake_up(&flock->fl_wait); 679038c8a9a5SSteve French } 679138c8a9a5SSteve French 679238c8a9a5SSteve French static inline bool lock_defer_pending(struct file_lock *fl) 679338c8a9a5SSteve French { 679438c8a9a5SSteve French /* check pending lock waiters */ 679538c8a9a5SSteve French return waitqueue_active(&fl->fl_wait); 679638c8a9a5SSteve French } 679738c8a9a5SSteve French 679838c8a9a5SSteve French /** 679938c8a9a5SSteve French * smb2_lock() - handler for smb2 file lock command 680038c8a9a5SSteve French * @work: smb work containing lock command buffer 680138c8a9a5SSteve French * 680238c8a9a5SSteve French * Return: 0 on success, otherwise error 680338c8a9a5SSteve French */ 680438c8a9a5SSteve French int smb2_lock(struct ksmbd_work *work) 680538c8a9a5SSteve French { 68067b7d709eSNamjae Jeon struct smb2_lock_req *req; 68077b7d709eSNamjae Jeon struct smb2_lock_rsp *rsp; 680838c8a9a5SSteve French struct smb2_lock_element *lock_ele; 680938c8a9a5SSteve French struct ksmbd_file *fp = NULL; 681038c8a9a5SSteve French struct file_lock *flock = NULL; 681138c8a9a5SSteve French struct file *filp = NULL; 681238c8a9a5SSteve French int lock_count; 681338c8a9a5SSteve French int flags = 0; 681438c8a9a5SSteve French int cmd = 0; 681538c8a9a5SSteve French int err = -EIO, i, rc = 0; 681638c8a9a5SSteve French u64 lock_start, lock_length; 681738c8a9a5SSteve French struct ksmbd_lock *smb_lock = NULL, *cmp_lock, *tmp, *tmp2; 681838c8a9a5SSteve French struct ksmbd_conn *conn; 681938c8a9a5SSteve French int nolock = 0; 682038c8a9a5SSteve French LIST_HEAD(lock_list); 682138c8a9a5SSteve French LIST_HEAD(rollback_list); 682238c8a9a5SSteve French int prior_lock = 0; 682338c8a9a5SSteve French 68247b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 68257b7d709eSNamjae Jeon 682638c8a9a5SSteve French ksmbd_debug(SMB, "Received lock request\n"); 682738c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); 682838c8a9a5SSteve French if (!fp) { 682938c8a9a5SSteve French ksmbd_debug(SMB, "Invalid file id for lock : %llu\n", req->VolatileFileId); 683038c8a9a5SSteve French err = -ENOENT; 683138c8a9a5SSteve French goto out2; 683238c8a9a5SSteve French } 683338c8a9a5SSteve French 683438c8a9a5SSteve French filp = fp->filp; 683538c8a9a5SSteve French lock_count = le16_to_cpu(req->LockCount); 683638c8a9a5SSteve French lock_ele = req->locks; 683738c8a9a5SSteve French 683838c8a9a5SSteve French ksmbd_debug(SMB, "lock count is %d\n", lock_count); 683938c8a9a5SSteve French if (!lock_count) { 684038c8a9a5SSteve French err = -EINVAL; 684138c8a9a5SSteve French goto out2; 684238c8a9a5SSteve French } 684338c8a9a5SSteve French 684438c8a9a5SSteve French for (i = 0; i < lock_count; i++) { 684538c8a9a5SSteve French flags = le32_to_cpu(lock_ele[i].Flags); 684638c8a9a5SSteve French 684738c8a9a5SSteve French flock = smb_flock_init(filp); 684838c8a9a5SSteve French if (!flock) 684938c8a9a5SSteve French goto out; 685038c8a9a5SSteve French 685138c8a9a5SSteve French cmd = smb2_set_flock_flags(flock, flags); 685238c8a9a5SSteve French 685338c8a9a5SSteve French lock_start = le64_to_cpu(lock_ele[i].Offset); 685438c8a9a5SSteve French lock_length = le64_to_cpu(lock_ele[i].Length); 685538c8a9a5SSteve French if (lock_start > U64_MAX - lock_length) { 685638c8a9a5SSteve French pr_err("Invalid lock range requested\n"); 685738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE; 685838c8a9a5SSteve French locks_free_lock(flock); 685938c8a9a5SSteve French goto out; 686038c8a9a5SSteve French } 686138c8a9a5SSteve French 686238c8a9a5SSteve French if (lock_start > OFFSET_MAX) 686338c8a9a5SSteve French flock->fl_start = OFFSET_MAX; 686438c8a9a5SSteve French else 686538c8a9a5SSteve French flock->fl_start = lock_start; 686638c8a9a5SSteve French 686738c8a9a5SSteve French lock_length = le64_to_cpu(lock_ele[i].Length); 686838c8a9a5SSteve French if (lock_length > OFFSET_MAX - flock->fl_start) 686938c8a9a5SSteve French lock_length = OFFSET_MAX - flock->fl_start; 687038c8a9a5SSteve French 687138c8a9a5SSteve French flock->fl_end = flock->fl_start + lock_length; 687238c8a9a5SSteve French 687338c8a9a5SSteve French if (flock->fl_end < flock->fl_start) { 687438c8a9a5SSteve French ksmbd_debug(SMB, 687538c8a9a5SSteve French "the end offset(%llx) is smaller than the start offset(%llx)\n", 687638c8a9a5SSteve French flock->fl_end, flock->fl_start); 687738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE; 687838c8a9a5SSteve French locks_free_lock(flock); 687938c8a9a5SSteve French goto out; 688038c8a9a5SSteve French } 688138c8a9a5SSteve French 688238c8a9a5SSteve French /* Check conflict locks in one request */ 688338c8a9a5SSteve French list_for_each_entry(cmp_lock, &lock_list, llist) { 688438c8a9a5SSteve French if (cmp_lock->fl->fl_start <= flock->fl_start && 688538c8a9a5SSteve French cmp_lock->fl->fl_end >= flock->fl_end) { 688638c8a9a5SSteve French if (cmp_lock->fl->fl_type != F_UNLCK && 688738c8a9a5SSteve French flock->fl_type != F_UNLCK) { 688838c8a9a5SSteve French pr_err("conflict two locks in one request\n"); 688938c8a9a5SSteve French err = -EINVAL; 689038c8a9a5SSteve French locks_free_lock(flock); 689138c8a9a5SSteve French goto out; 689238c8a9a5SSteve French } 689338c8a9a5SSteve French } 689438c8a9a5SSteve French } 689538c8a9a5SSteve French 689638c8a9a5SSteve French smb_lock = smb2_lock_init(flock, cmd, flags, &lock_list); 689738c8a9a5SSteve French if (!smb_lock) { 689838c8a9a5SSteve French err = -EINVAL; 689938c8a9a5SSteve French locks_free_lock(flock); 690038c8a9a5SSteve French goto out; 690138c8a9a5SSteve French } 690238c8a9a5SSteve French } 690338c8a9a5SSteve French 690438c8a9a5SSteve French list_for_each_entry_safe(smb_lock, tmp, &lock_list, llist) { 690538c8a9a5SSteve French if (smb_lock->cmd < 0) { 690638c8a9a5SSteve French err = -EINVAL; 690738c8a9a5SSteve French goto out; 690838c8a9a5SSteve French } 690938c8a9a5SSteve French 691038c8a9a5SSteve French if (!(smb_lock->flags & SMB2_LOCKFLAG_MASK)) { 691138c8a9a5SSteve French err = -EINVAL; 691238c8a9a5SSteve French goto out; 691338c8a9a5SSteve French } 691438c8a9a5SSteve French 691538c8a9a5SSteve French if ((prior_lock & (SMB2_LOCKFLAG_EXCLUSIVE | SMB2_LOCKFLAG_SHARED) && 691638c8a9a5SSteve French smb_lock->flags & SMB2_LOCKFLAG_UNLOCK) || 691738c8a9a5SSteve French (prior_lock == SMB2_LOCKFLAG_UNLOCK && 691838c8a9a5SSteve French !(smb_lock->flags & SMB2_LOCKFLAG_UNLOCK))) { 691938c8a9a5SSteve French err = -EINVAL; 692038c8a9a5SSteve French goto out; 692138c8a9a5SSteve French } 692238c8a9a5SSteve French 692338c8a9a5SSteve French prior_lock = smb_lock->flags; 692438c8a9a5SSteve French 692538c8a9a5SSteve French if (!(smb_lock->flags & SMB2_LOCKFLAG_UNLOCK) && 692638c8a9a5SSteve French !(smb_lock->flags & SMB2_LOCKFLAG_FAIL_IMMEDIATELY)) 692738c8a9a5SSteve French goto no_check_cl; 692838c8a9a5SSteve French 692938c8a9a5SSteve French nolock = 1; 693038c8a9a5SSteve French /* check locks in connection list */ 693138c8a9a5SSteve French down_read(&conn_list_lock); 693238c8a9a5SSteve French list_for_each_entry(conn, &conn_list, conns_list) { 693338c8a9a5SSteve French spin_lock(&conn->llist_lock); 693438c8a9a5SSteve French list_for_each_entry_safe(cmp_lock, tmp2, &conn->lock_list, clist) { 693538c8a9a5SSteve French if (file_inode(cmp_lock->fl->fl_file) != 693638c8a9a5SSteve French file_inode(smb_lock->fl->fl_file)) 693738c8a9a5SSteve French continue; 693838c8a9a5SSteve French 693938c8a9a5SSteve French if (smb_lock->fl->fl_type == F_UNLCK) { 694038c8a9a5SSteve French if (cmp_lock->fl->fl_file == smb_lock->fl->fl_file && 694138c8a9a5SSteve French cmp_lock->start == smb_lock->start && 694238c8a9a5SSteve French cmp_lock->end == smb_lock->end && 694338c8a9a5SSteve French !lock_defer_pending(cmp_lock->fl)) { 694438c8a9a5SSteve French nolock = 0; 694538c8a9a5SSteve French list_del(&cmp_lock->flist); 694638c8a9a5SSteve French list_del(&cmp_lock->clist); 694738c8a9a5SSteve French spin_unlock(&conn->llist_lock); 694838c8a9a5SSteve French up_read(&conn_list_lock); 694938c8a9a5SSteve French 695038c8a9a5SSteve French locks_free_lock(cmp_lock->fl); 695138c8a9a5SSteve French kfree(cmp_lock); 695238c8a9a5SSteve French goto out_check_cl; 695338c8a9a5SSteve French } 695438c8a9a5SSteve French continue; 695538c8a9a5SSteve French } 695638c8a9a5SSteve French 695738c8a9a5SSteve French if (cmp_lock->fl->fl_file == smb_lock->fl->fl_file) { 695838c8a9a5SSteve French if (smb_lock->flags & SMB2_LOCKFLAG_SHARED) 695938c8a9a5SSteve French continue; 696038c8a9a5SSteve French } else { 696138c8a9a5SSteve French if (cmp_lock->flags & SMB2_LOCKFLAG_SHARED) 696238c8a9a5SSteve French continue; 696338c8a9a5SSteve French } 696438c8a9a5SSteve French 696538c8a9a5SSteve French /* check zero byte lock range */ 696638c8a9a5SSteve French if (cmp_lock->zero_len && !smb_lock->zero_len && 696738c8a9a5SSteve French cmp_lock->start > smb_lock->start && 696838c8a9a5SSteve French cmp_lock->start < smb_lock->end) { 696938c8a9a5SSteve French spin_unlock(&conn->llist_lock); 697038c8a9a5SSteve French up_read(&conn_list_lock); 697138c8a9a5SSteve French pr_err("previous lock conflict with zero byte lock range\n"); 697238c8a9a5SSteve French goto out; 697338c8a9a5SSteve French } 697438c8a9a5SSteve French 697538c8a9a5SSteve French if (smb_lock->zero_len && !cmp_lock->zero_len && 697638c8a9a5SSteve French smb_lock->start > cmp_lock->start && 697738c8a9a5SSteve French smb_lock->start < cmp_lock->end) { 697838c8a9a5SSteve French spin_unlock(&conn->llist_lock); 697938c8a9a5SSteve French up_read(&conn_list_lock); 698038c8a9a5SSteve French pr_err("current lock conflict with zero byte lock range\n"); 698138c8a9a5SSteve French goto out; 698238c8a9a5SSteve French } 698338c8a9a5SSteve French 698438c8a9a5SSteve French if (((cmp_lock->start <= smb_lock->start && 698538c8a9a5SSteve French cmp_lock->end > smb_lock->start) || 698638c8a9a5SSteve French (cmp_lock->start < smb_lock->end && 698738c8a9a5SSteve French cmp_lock->end >= smb_lock->end)) && 698838c8a9a5SSteve French !cmp_lock->zero_len && !smb_lock->zero_len) { 698938c8a9a5SSteve French spin_unlock(&conn->llist_lock); 699038c8a9a5SSteve French up_read(&conn_list_lock); 699138c8a9a5SSteve French pr_err("Not allow lock operation on exclusive lock range\n"); 699238c8a9a5SSteve French goto out; 699338c8a9a5SSteve French } 699438c8a9a5SSteve French } 699538c8a9a5SSteve French spin_unlock(&conn->llist_lock); 699638c8a9a5SSteve French } 699738c8a9a5SSteve French up_read(&conn_list_lock); 699838c8a9a5SSteve French out_check_cl: 699938c8a9a5SSteve French if (smb_lock->fl->fl_type == F_UNLCK && nolock) { 700038c8a9a5SSteve French pr_err("Try to unlock nolocked range\n"); 700138c8a9a5SSteve French rsp->hdr.Status = STATUS_RANGE_NOT_LOCKED; 700238c8a9a5SSteve French goto out; 700338c8a9a5SSteve French } 700438c8a9a5SSteve French 700538c8a9a5SSteve French no_check_cl: 700638c8a9a5SSteve French if (smb_lock->zero_len) { 700738c8a9a5SSteve French err = 0; 700838c8a9a5SSteve French goto skip; 700938c8a9a5SSteve French } 701038c8a9a5SSteve French 701138c8a9a5SSteve French flock = smb_lock->fl; 701238c8a9a5SSteve French list_del(&smb_lock->llist); 701338c8a9a5SSteve French retry: 701438c8a9a5SSteve French rc = vfs_lock_file(filp, smb_lock->cmd, flock, NULL); 701538c8a9a5SSteve French skip: 701638c8a9a5SSteve French if (flags & SMB2_LOCKFLAG_UNLOCK) { 701738c8a9a5SSteve French if (!rc) { 701838c8a9a5SSteve French ksmbd_debug(SMB, "File unlocked\n"); 701938c8a9a5SSteve French } else if (rc == -ENOENT) { 702038c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_LOCKED; 702138c8a9a5SSteve French goto out; 702238c8a9a5SSteve French } 702338c8a9a5SSteve French locks_free_lock(flock); 702438c8a9a5SSteve French kfree(smb_lock); 702538c8a9a5SSteve French } else { 702638c8a9a5SSteve French if (rc == FILE_LOCK_DEFERRED) { 702738c8a9a5SSteve French void **argv; 702838c8a9a5SSteve French 702938c8a9a5SSteve French ksmbd_debug(SMB, 703038c8a9a5SSteve French "would have to wait for getting lock\n"); 703138c8a9a5SSteve French spin_lock(&work->conn->llist_lock); 703238c8a9a5SSteve French list_add_tail(&smb_lock->clist, 703338c8a9a5SSteve French &work->conn->lock_list); 703438c8a9a5SSteve French spin_unlock(&work->conn->llist_lock); 703538c8a9a5SSteve French list_add(&smb_lock->llist, &rollback_list); 703638c8a9a5SSteve French 703738c8a9a5SSteve French argv = kmalloc(sizeof(void *), GFP_KERNEL); 703838c8a9a5SSteve French if (!argv) { 703938c8a9a5SSteve French err = -ENOMEM; 704038c8a9a5SSteve French goto out; 704138c8a9a5SSteve French } 704238c8a9a5SSteve French argv[0] = flock; 704338c8a9a5SSteve French 704438c8a9a5SSteve French rc = setup_async_work(work, 704538c8a9a5SSteve French smb2_remove_blocked_lock, 704638c8a9a5SSteve French argv); 704738c8a9a5SSteve French if (rc) { 704838c8a9a5SSteve French err = -ENOMEM; 704938c8a9a5SSteve French goto out; 705038c8a9a5SSteve French } 705138c8a9a5SSteve French spin_lock(&fp->f_lock); 705238c8a9a5SSteve French list_add(&work->fp_entry, &fp->blocked_works); 705338c8a9a5SSteve French spin_unlock(&fp->f_lock); 705438c8a9a5SSteve French 705538c8a9a5SSteve French smb2_send_interim_resp(work, STATUS_PENDING); 705638c8a9a5SSteve French 705738c8a9a5SSteve French ksmbd_vfs_posix_lock_wait(flock); 705838c8a9a5SSteve French 705938c8a9a5SSteve French spin_lock(&fp->f_lock); 706038c8a9a5SSteve French list_del(&work->fp_entry); 706138c8a9a5SSteve French spin_unlock(&fp->f_lock); 706238c8a9a5SSteve French 706338c8a9a5SSteve French if (work->state != KSMBD_WORK_ACTIVE) { 706438c8a9a5SSteve French list_del(&smb_lock->llist); 706538c8a9a5SSteve French spin_lock(&work->conn->llist_lock); 706638c8a9a5SSteve French list_del(&smb_lock->clist); 706738c8a9a5SSteve French spin_unlock(&work->conn->llist_lock); 706838c8a9a5SSteve French locks_free_lock(flock); 706938c8a9a5SSteve French 707038c8a9a5SSteve French if (work->state == KSMBD_WORK_CANCELLED) { 707138c8a9a5SSteve French rsp->hdr.Status = 707238c8a9a5SSteve French STATUS_CANCELLED; 707338c8a9a5SSteve French kfree(smb_lock); 707438c8a9a5SSteve French smb2_send_interim_resp(work, 707538c8a9a5SSteve French STATUS_CANCELLED); 707638c8a9a5SSteve French work->send_no_response = 1; 707738c8a9a5SSteve French goto out; 707838c8a9a5SSteve French } 707938c8a9a5SSteve French 708038c8a9a5SSteve French rsp->hdr.Status = 708138c8a9a5SSteve French STATUS_RANGE_NOT_LOCKED; 708238c8a9a5SSteve French kfree(smb_lock); 708338c8a9a5SSteve French goto out2; 708438c8a9a5SSteve French } 708538c8a9a5SSteve French 708638c8a9a5SSteve French list_del(&smb_lock->llist); 708738c8a9a5SSteve French spin_lock(&work->conn->llist_lock); 708838c8a9a5SSteve French list_del(&smb_lock->clist); 708938c8a9a5SSteve French spin_unlock(&work->conn->llist_lock); 709038c8a9a5SSteve French release_async_work(work); 709138c8a9a5SSteve French goto retry; 709238c8a9a5SSteve French } else if (!rc) { 709338c8a9a5SSteve French spin_lock(&work->conn->llist_lock); 709438c8a9a5SSteve French list_add_tail(&smb_lock->clist, 709538c8a9a5SSteve French &work->conn->lock_list); 709638c8a9a5SSteve French list_add_tail(&smb_lock->flist, 709738c8a9a5SSteve French &fp->lock_list); 709838c8a9a5SSteve French spin_unlock(&work->conn->llist_lock); 709938c8a9a5SSteve French list_add(&smb_lock->llist, &rollback_list); 710038c8a9a5SSteve French ksmbd_debug(SMB, "successful in taking lock\n"); 710138c8a9a5SSteve French } else { 710238c8a9a5SSteve French goto out; 710338c8a9a5SSteve French } 710438c8a9a5SSteve French } 710538c8a9a5SSteve French } 710638c8a9a5SSteve French 710738c8a9a5SSteve French if (atomic_read(&fp->f_ci->op_count) > 1) 710838c8a9a5SSteve French smb_break_all_oplock(work, fp); 710938c8a9a5SSteve French 711038c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(4); 711138c8a9a5SSteve French ksmbd_debug(SMB, "successful in taking lock\n"); 711238c8a9a5SSteve French rsp->hdr.Status = STATUS_SUCCESS; 711338c8a9a5SSteve French rsp->Reserved = 0; 7114e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_lock_rsp)); 7115e2b76ab8SNamjae Jeon if (err) 7116e2b76ab8SNamjae Jeon goto out; 7117e2b76ab8SNamjae Jeon 711838c8a9a5SSteve French ksmbd_fd_put(work, fp); 711938c8a9a5SSteve French return 0; 712038c8a9a5SSteve French 712138c8a9a5SSteve French out: 712238c8a9a5SSteve French list_for_each_entry_safe(smb_lock, tmp, &lock_list, llist) { 712338c8a9a5SSteve French locks_free_lock(smb_lock->fl); 712438c8a9a5SSteve French list_del(&smb_lock->llist); 712538c8a9a5SSteve French kfree(smb_lock); 712638c8a9a5SSteve French } 712738c8a9a5SSteve French 712838c8a9a5SSteve French list_for_each_entry_safe(smb_lock, tmp, &rollback_list, llist) { 712938c8a9a5SSteve French struct file_lock *rlock = NULL; 713038c8a9a5SSteve French 713138c8a9a5SSteve French rlock = smb_flock_init(filp); 713238c8a9a5SSteve French rlock->fl_type = F_UNLCK; 713338c8a9a5SSteve French rlock->fl_start = smb_lock->start; 713438c8a9a5SSteve French rlock->fl_end = smb_lock->end; 713538c8a9a5SSteve French 713638c8a9a5SSteve French rc = vfs_lock_file(filp, F_SETLK, rlock, NULL); 713738c8a9a5SSteve French if (rc) 713838c8a9a5SSteve French pr_err("rollback unlock fail : %d\n", rc); 713938c8a9a5SSteve French 714038c8a9a5SSteve French list_del(&smb_lock->llist); 714138c8a9a5SSteve French spin_lock(&work->conn->llist_lock); 714238c8a9a5SSteve French if (!list_empty(&smb_lock->flist)) 714338c8a9a5SSteve French list_del(&smb_lock->flist); 714438c8a9a5SSteve French list_del(&smb_lock->clist); 714538c8a9a5SSteve French spin_unlock(&work->conn->llist_lock); 714638c8a9a5SSteve French 714738c8a9a5SSteve French locks_free_lock(smb_lock->fl); 714838c8a9a5SSteve French locks_free_lock(rlock); 714938c8a9a5SSteve French kfree(smb_lock); 715038c8a9a5SSteve French } 715138c8a9a5SSteve French out2: 715238c8a9a5SSteve French ksmbd_debug(SMB, "failed in taking lock(flags : %x), err : %d\n", flags, err); 715338c8a9a5SSteve French 715438c8a9a5SSteve French if (!rsp->hdr.Status) { 715538c8a9a5SSteve French if (err == -EINVAL) 715638c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 715738c8a9a5SSteve French else if (err == -ENOMEM) 715838c8a9a5SSteve French rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 715938c8a9a5SSteve French else if (err == -ENOENT) 716038c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 716138c8a9a5SSteve French else 716238c8a9a5SSteve French rsp->hdr.Status = STATUS_LOCK_NOT_GRANTED; 716338c8a9a5SSteve French } 716438c8a9a5SSteve French 716538c8a9a5SSteve French smb2_set_err_rsp(work); 716638c8a9a5SSteve French ksmbd_fd_put(work, fp); 716738c8a9a5SSteve French return err; 716838c8a9a5SSteve French } 716938c8a9a5SSteve French 717038c8a9a5SSteve French static int fsctl_copychunk(struct ksmbd_work *work, 717138c8a9a5SSteve French struct copychunk_ioctl_req *ci_req, 717238c8a9a5SSteve French unsigned int cnt_code, 717338c8a9a5SSteve French unsigned int input_count, 717438c8a9a5SSteve French unsigned long long volatile_id, 717538c8a9a5SSteve French unsigned long long persistent_id, 717638c8a9a5SSteve French struct smb2_ioctl_rsp *rsp) 717738c8a9a5SSteve French { 717838c8a9a5SSteve French struct copychunk_ioctl_rsp *ci_rsp; 717938c8a9a5SSteve French struct ksmbd_file *src_fp = NULL, *dst_fp = NULL; 718038c8a9a5SSteve French struct srv_copychunk *chunks; 718138c8a9a5SSteve French unsigned int i, chunk_count, chunk_count_written = 0; 718238c8a9a5SSteve French unsigned int chunk_size_written = 0; 718338c8a9a5SSteve French loff_t total_size_written = 0; 718438c8a9a5SSteve French int ret = 0; 718538c8a9a5SSteve French 718638c8a9a5SSteve French ci_rsp = (struct copychunk_ioctl_rsp *)&rsp->Buffer[0]; 718738c8a9a5SSteve French 718838c8a9a5SSteve French rsp->VolatileFileId = volatile_id; 718938c8a9a5SSteve French rsp->PersistentFileId = persistent_id; 719038c8a9a5SSteve French ci_rsp->ChunksWritten = 719138c8a9a5SSteve French cpu_to_le32(ksmbd_server_side_copy_max_chunk_count()); 719238c8a9a5SSteve French ci_rsp->ChunkBytesWritten = 719338c8a9a5SSteve French cpu_to_le32(ksmbd_server_side_copy_max_chunk_size()); 719438c8a9a5SSteve French ci_rsp->TotalBytesWritten = 719538c8a9a5SSteve French cpu_to_le32(ksmbd_server_side_copy_max_total_size()); 719638c8a9a5SSteve French 719738c8a9a5SSteve French chunks = (struct srv_copychunk *)&ci_req->Chunks[0]; 719838c8a9a5SSteve French chunk_count = le32_to_cpu(ci_req->ChunkCount); 719938c8a9a5SSteve French if (chunk_count == 0) 720038c8a9a5SSteve French goto out; 720138c8a9a5SSteve French total_size_written = 0; 720238c8a9a5SSteve French 720338c8a9a5SSteve French /* verify the SRV_COPYCHUNK_COPY packet */ 720438c8a9a5SSteve French if (chunk_count > ksmbd_server_side_copy_max_chunk_count() || 720538c8a9a5SSteve French input_count < offsetof(struct copychunk_ioctl_req, Chunks) + 720638c8a9a5SSteve French chunk_count * sizeof(struct srv_copychunk)) { 720738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 720838c8a9a5SSteve French return -EINVAL; 720938c8a9a5SSteve French } 721038c8a9a5SSteve French 721138c8a9a5SSteve French for (i = 0; i < chunk_count; i++) { 721238c8a9a5SSteve French if (le32_to_cpu(chunks[i].Length) == 0 || 721338c8a9a5SSteve French le32_to_cpu(chunks[i].Length) > ksmbd_server_side_copy_max_chunk_size()) 721438c8a9a5SSteve French break; 721538c8a9a5SSteve French total_size_written += le32_to_cpu(chunks[i].Length); 721638c8a9a5SSteve French } 721738c8a9a5SSteve French 721838c8a9a5SSteve French if (i < chunk_count || 721938c8a9a5SSteve French total_size_written > ksmbd_server_side_copy_max_total_size()) { 722038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 722138c8a9a5SSteve French return -EINVAL; 722238c8a9a5SSteve French } 722338c8a9a5SSteve French 722438c8a9a5SSteve French src_fp = ksmbd_lookup_foreign_fd(work, 722538c8a9a5SSteve French le64_to_cpu(ci_req->ResumeKey[0])); 722638c8a9a5SSteve French dst_fp = ksmbd_lookup_fd_slow(work, volatile_id, persistent_id); 722738c8a9a5SSteve French ret = -EINVAL; 722838c8a9a5SSteve French if (!src_fp || 722938c8a9a5SSteve French src_fp->persistent_id != le64_to_cpu(ci_req->ResumeKey[1])) { 723038c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND; 723138c8a9a5SSteve French goto out; 723238c8a9a5SSteve French } 723338c8a9a5SSteve French 723438c8a9a5SSteve French if (!dst_fp) { 723538c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 723638c8a9a5SSteve French goto out; 723738c8a9a5SSteve French } 723838c8a9a5SSteve French 723938c8a9a5SSteve French /* 724038c8a9a5SSteve French * FILE_READ_DATA should only be included in 724138c8a9a5SSteve French * the FSCTL_COPYCHUNK case 724238c8a9a5SSteve French */ 724338c8a9a5SSteve French if (cnt_code == FSCTL_COPYCHUNK && 724438c8a9a5SSteve French !(dst_fp->daccess & (FILE_READ_DATA_LE | FILE_GENERIC_READ_LE))) { 724538c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 724638c8a9a5SSteve French goto out; 724738c8a9a5SSteve French } 724838c8a9a5SSteve French 724938c8a9a5SSteve French ret = ksmbd_vfs_copy_file_ranges(work, src_fp, dst_fp, 725038c8a9a5SSteve French chunks, chunk_count, 725138c8a9a5SSteve French &chunk_count_written, 725238c8a9a5SSteve French &chunk_size_written, 725338c8a9a5SSteve French &total_size_written); 725438c8a9a5SSteve French if (ret < 0) { 725538c8a9a5SSteve French if (ret == -EACCES) 725638c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 725738c8a9a5SSteve French if (ret == -EAGAIN) 725838c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; 725938c8a9a5SSteve French else if (ret == -EBADF) 726038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 726138c8a9a5SSteve French else if (ret == -EFBIG || ret == -ENOSPC) 726238c8a9a5SSteve French rsp->hdr.Status = STATUS_DISK_FULL; 726338c8a9a5SSteve French else if (ret == -EINVAL) 726438c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 726538c8a9a5SSteve French else if (ret == -EISDIR) 726638c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY; 726738c8a9a5SSteve French else if (ret == -E2BIG) 726838c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_VIEW_SIZE; 726938c8a9a5SSteve French else 727038c8a9a5SSteve French rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; 727138c8a9a5SSteve French } 727238c8a9a5SSteve French 727338c8a9a5SSteve French ci_rsp->ChunksWritten = cpu_to_le32(chunk_count_written); 727438c8a9a5SSteve French ci_rsp->ChunkBytesWritten = cpu_to_le32(chunk_size_written); 727538c8a9a5SSteve French ci_rsp->TotalBytesWritten = cpu_to_le32(total_size_written); 727638c8a9a5SSteve French out: 727738c8a9a5SSteve French ksmbd_fd_put(work, src_fp); 727838c8a9a5SSteve French ksmbd_fd_put(work, dst_fp); 727938c8a9a5SSteve French return ret; 728038c8a9a5SSteve French } 728138c8a9a5SSteve French 728238c8a9a5SSteve French static __be32 idev_ipv4_address(struct in_device *idev) 728338c8a9a5SSteve French { 728438c8a9a5SSteve French __be32 addr = 0; 728538c8a9a5SSteve French 728638c8a9a5SSteve French struct in_ifaddr *ifa; 728738c8a9a5SSteve French 728838c8a9a5SSteve French rcu_read_lock(); 728938c8a9a5SSteve French in_dev_for_each_ifa_rcu(ifa, idev) { 729038c8a9a5SSteve French if (ifa->ifa_flags & IFA_F_SECONDARY) 729138c8a9a5SSteve French continue; 729238c8a9a5SSteve French 729338c8a9a5SSteve French addr = ifa->ifa_address; 729438c8a9a5SSteve French break; 729538c8a9a5SSteve French } 729638c8a9a5SSteve French rcu_read_unlock(); 729738c8a9a5SSteve French return addr; 729838c8a9a5SSteve French } 729938c8a9a5SSteve French 730038c8a9a5SSteve French static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn, 730138c8a9a5SSteve French struct smb2_ioctl_rsp *rsp, 730238c8a9a5SSteve French unsigned int out_buf_len) 730338c8a9a5SSteve French { 730438c8a9a5SSteve French struct network_interface_info_ioctl_rsp *nii_rsp = NULL; 730538c8a9a5SSteve French int nbytes = 0; 730638c8a9a5SSteve French struct net_device *netdev; 730738c8a9a5SSteve French struct sockaddr_storage_rsp *sockaddr_storage; 730838c8a9a5SSteve French unsigned int flags; 730938c8a9a5SSteve French unsigned long long speed; 731038c8a9a5SSteve French 731138c8a9a5SSteve French rtnl_lock(); 731238c8a9a5SSteve French for_each_netdev(&init_net, netdev) { 731338c8a9a5SSteve French bool ipv4_set = false; 731438c8a9a5SSteve French 731538c8a9a5SSteve French if (netdev->type == ARPHRD_LOOPBACK) 731638c8a9a5SSteve French continue; 731738c8a9a5SSteve French 731838c8a9a5SSteve French flags = dev_get_flags(netdev); 731938c8a9a5SSteve French if (!(flags & IFF_RUNNING)) 732038c8a9a5SSteve French continue; 732138c8a9a5SSteve French ipv6_retry: 732238c8a9a5SSteve French if (out_buf_len < 732338c8a9a5SSteve French nbytes + sizeof(struct network_interface_info_ioctl_rsp)) { 732438c8a9a5SSteve French rtnl_unlock(); 732538c8a9a5SSteve French return -ENOSPC; 732638c8a9a5SSteve French } 732738c8a9a5SSteve French 732838c8a9a5SSteve French nii_rsp = (struct network_interface_info_ioctl_rsp *) 732938c8a9a5SSteve French &rsp->Buffer[nbytes]; 733038c8a9a5SSteve French nii_rsp->IfIndex = cpu_to_le32(netdev->ifindex); 733138c8a9a5SSteve French 733238c8a9a5SSteve French nii_rsp->Capability = 0; 733338c8a9a5SSteve French if (netdev->real_num_tx_queues > 1) 733438c8a9a5SSteve French nii_rsp->Capability |= cpu_to_le32(RSS_CAPABLE); 733538c8a9a5SSteve French if (ksmbd_rdma_capable_netdev(netdev)) 733638c8a9a5SSteve French nii_rsp->Capability |= cpu_to_le32(RDMA_CAPABLE); 733738c8a9a5SSteve French 733838c8a9a5SSteve French nii_rsp->Next = cpu_to_le32(152); 733938c8a9a5SSteve French nii_rsp->Reserved = 0; 734038c8a9a5SSteve French 734138c8a9a5SSteve French if (netdev->ethtool_ops->get_link_ksettings) { 734238c8a9a5SSteve French struct ethtool_link_ksettings cmd; 734338c8a9a5SSteve French 734438c8a9a5SSteve French netdev->ethtool_ops->get_link_ksettings(netdev, &cmd); 734538c8a9a5SSteve French speed = cmd.base.speed; 734638c8a9a5SSteve French } else { 734738c8a9a5SSteve French ksmbd_debug(SMB, "%s %s\n", netdev->name, 734838c8a9a5SSteve French "speed is unknown, defaulting to 1Gb/sec"); 734938c8a9a5SSteve French speed = SPEED_1000; 735038c8a9a5SSteve French } 735138c8a9a5SSteve French 735238c8a9a5SSteve French speed *= 1000000; 735338c8a9a5SSteve French nii_rsp->LinkSpeed = cpu_to_le64(speed); 735438c8a9a5SSteve French 735538c8a9a5SSteve French sockaddr_storage = (struct sockaddr_storage_rsp *) 735638c8a9a5SSteve French nii_rsp->SockAddr_Storage; 735738c8a9a5SSteve French memset(sockaddr_storage, 0, 128); 735838c8a9a5SSteve French 735938c8a9a5SSteve French if (!ipv4_set) { 736038c8a9a5SSteve French struct in_device *idev; 736138c8a9a5SSteve French 736238c8a9a5SSteve French sockaddr_storage->Family = cpu_to_le16(INTERNETWORK); 736338c8a9a5SSteve French sockaddr_storage->addr4.Port = 0; 736438c8a9a5SSteve French 736538c8a9a5SSteve French idev = __in_dev_get_rtnl(netdev); 736638c8a9a5SSteve French if (!idev) 736738c8a9a5SSteve French continue; 736838c8a9a5SSteve French sockaddr_storage->addr4.IPv4address = 736938c8a9a5SSteve French idev_ipv4_address(idev); 737038c8a9a5SSteve French nbytes += sizeof(struct network_interface_info_ioctl_rsp); 737138c8a9a5SSteve French ipv4_set = true; 737238c8a9a5SSteve French goto ipv6_retry; 737338c8a9a5SSteve French } else { 737438c8a9a5SSteve French struct inet6_dev *idev6; 737538c8a9a5SSteve French struct inet6_ifaddr *ifa; 737638c8a9a5SSteve French __u8 *ipv6_addr = sockaddr_storage->addr6.IPv6address; 737738c8a9a5SSteve French 737838c8a9a5SSteve French sockaddr_storage->Family = cpu_to_le16(INTERNETWORKV6); 737938c8a9a5SSteve French sockaddr_storage->addr6.Port = 0; 738038c8a9a5SSteve French sockaddr_storage->addr6.FlowInfo = 0; 738138c8a9a5SSteve French 738238c8a9a5SSteve French idev6 = __in6_dev_get(netdev); 738338c8a9a5SSteve French if (!idev6) 738438c8a9a5SSteve French continue; 738538c8a9a5SSteve French 738638c8a9a5SSteve French list_for_each_entry(ifa, &idev6->addr_list, if_list) { 738738c8a9a5SSteve French if (ifa->flags & (IFA_F_TENTATIVE | 738838c8a9a5SSteve French IFA_F_DEPRECATED)) 738938c8a9a5SSteve French continue; 739038c8a9a5SSteve French memcpy(ipv6_addr, ifa->addr.s6_addr, 16); 739138c8a9a5SSteve French break; 739238c8a9a5SSteve French } 739338c8a9a5SSteve French sockaddr_storage->addr6.ScopeId = 0; 739438c8a9a5SSteve French nbytes += sizeof(struct network_interface_info_ioctl_rsp); 739538c8a9a5SSteve French } 739638c8a9a5SSteve French } 739738c8a9a5SSteve French rtnl_unlock(); 739838c8a9a5SSteve French 739938c8a9a5SSteve French /* zero if this is last one */ 740038c8a9a5SSteve French if (nii_rsp) 740138c8a9a5SSteve French nii_rsp->Next = 0; 740238c8a9a5SSteve French 740338c8a9a5SSteve French rsp->PersistentFileId = SMB2_NO_FID; 740438c8a9a5SSteve French rsp->VolatileFileId = SMB2_NO_FID; 740538c8a9a5SSteve French return nbytes; 740638c8a9a5SSteve French } 740738c8a9a5SSteve French 740838c8a9a5SSteve French static int fsctl_validate_negotiate_info(struct ksmbd_conn *conn, 740938c8a9a5SSteve French struct validate_negotiate_info_req *neg_req, 741038c8a9a5SSteve French struct validate_negotiate_info_rsp *neg_rsp, 741138c8a9a5SSteve French unsigned int in_buf_len) 741238c8a9a5SSteve French { 741338c8a9a5SSteve French int ret = 0; 741438c8a9a5SSteve French int dialect; 741538c8a9a5SSteve French 741638c8a9a5SSteve French if (in_buf_len < offsetof(struct validate_negotiate_info_req, Dialects) + 741738c8a9a5SSteve French le16_to_cpu(neg_req->DialectCount) * sizeof(__le16)) 741838c8a9a5SSteve French return -EINVAL; 741938c8a9a5SSteve French 742038c8a9a5SSteve French dialect = ksmbd_lookup_dialect_by_id(neg_req->Dialects, 742138c8a9a5SSteve French neg_req->DialectCount); 742238c8a9a5SSteve French if (dialect == BAD_PROT_ID || dialect != conn->dialect) { 742338c8a9a5SSteve French ret = -EINVAL; 742438c8a9a5SSteve French goto err_out; 742538c8a9a5SSteve French } 742638c8a9a5SSteve French 742738c8a9a5SSteve French if (strncmp(neg_req->Guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE)) { 742838c8a9a5SSteve French ret = -EINVAL; 742938c8a9a5SSteve French goto err_out; 743038c8a9a5SSteve French } 743138c8a9a5SSteve French 743238c8a9a5SSteve French if (le16_to_cpu(neg_req->SecurityMode) != conn->cli_sec_mode) { 743338c8a9a5SSteve French ret = -EINVAL; 743438c8a9a5SSteve French goto err_out; 743538c8a9a5SSteve French } 743638c8a9a5SSteve French 743738c8a9a5SSteve French if (le32_to_cpu(neg_req->Capabilities) != conn->cli_cap) { 743838c8a9a5SSteve French ret = -EINVAL; 743938c8a9a5SSteve French goto err_out; 744038c8a9a5SSteve French } 744138c8a9a5SSteve French 744238c8a9a5SSteve French neg_rsp->Capabilities = cpu_to_le32(conn->vals->capabilities); 744338c8a9a5SSteve French memset(neg_rsp->Guid, 0, SMB2_CLIENT_GUID_SIZE); 744438c8a9a5SSteve French neg_rsp->SecurityMode = cpu_to_le16(conn->srv_sec_mode); 744538c8a9a5SSteve French neg_rsp->Dialect = cpu_to_le16(conn->dialect); 744638c8a9a5SSteve French err_out: 744738c8a9a5SSteve French return ret; 744838c8a9a5SSteve French } 744938c8a9a5SSteve French 745038c8a9a5SSteve French static int fsctl_query_allocated_ranges(struct ksmbd_work *work, u64 id, 745138c8a9a5SSteve French struct file_allocated_range_buffer *qar_req, 745238c8a9a5SSteve French struct file_allocated_range_buffer *qar_rsp, 745338c8a9a5SSteve French unsigned int in_count, unsigned int *out_count) 745438c8a9a5SSteve French { 745538c8a9a5SSteve French struct ksmbd_file *fp; 745638c8a9a5SSteve French loff_t start, length; 745738c8a9a5SSteve French int ret = 0; 745838c8a9a5SSteve French 745938c8a9a5SSteve French *out_count = 0; 746038c8a9a5SSteve French if (in_count == 0) 746138c8a9a5SSteve French return -EINVAL; 746238c8a9a5SSteve French 746338c8a9a5SSteve French start = le64_to_cpu(qar_req->file_offset); 746438c8a9a5SSteve French length = le64_to_cpu(qar_req->length); 746538c8a9a5SSteve French 746638c8a9a5SSteve French if (start < 0 || length < 0) 746738c8a9a5SSteve French return -EINVAL; 746838c8a9a5SSteve French 746938c8a9a5SSteve French fp = ksmbd_lookup_fd_fast(work, id); 747038c8a9a5SSteve French if (!fp) 747138c8a9a5SSteve French return -ENOENT; 747238c8a9a5SSteve French 747338c8a9a5SSteve French ret = ksmbd_vfs_fqar_lseek(fp, start, length, 747438c8a9a5SSteve French qar_rsp, in_count, out_count); 747538c8a9a5SSteve French if (ret && ret != -E2BIG) 747638c8a9a5SSteve French *out_count = 0; 747738c8a9a5SSteve French 747838c8a9a5SSteve French ksmbd_fd_put(work, fp); 747938c8a9a5SSteve French return ret; 748038c8a9a5SSteve French } 748138c8a9a5SSteve French 748238c8a9a5SSteve French static int fsctl_pipe_transceive(struct ksmbd_work *work, u64 id, 748338c8a9a5SSteve French unsigned int out_buf_len, 748438c8a9a5SSteve French struct smb2_ioctl_req *req, 748538c8a9a5SSteve French struct smb2_ioctl_rsp *rsp) 748638c8a9a5SSteve French { 748738c8a9a5SSteve French struct ksmbd_rpc_command *rpc_resp; 748838c8a9a5SSteve French char *data_buf = (char *)&req->Buffer[0]; 748938c8a9a5SSteve French int nbytes = 0; 749038c8a9a5SSteve French 749138c8a9a5SSteve French rpc_resp = ksmbd_rpc_ioctl(work->sess, id, data_buf, 749238c8a9a5SSteve French le32_to_cpu(req->InputCount)); 749338c8a9a5SSteve French if (rpc_resp) { 749438c8a9a5SSteve French if (rpc_resp->flags == KSMBD_RPC_SOME_NOT_MAPPED) { 749538c8a9a5SSteve French /* 749638c8a9a5SSteve French * set STATUS_SOME_NOT_MAPPED response 749738c8a9a5SSteve French * for unknown domain sid. 749838c8a9a5SSteve French */ 749938c8a9a5SSteve French rsp->hdr.Status = STATUS_SOME_NOT_MAPPED; 750038c8a9a5SSteve French } else if (rpc_resp->flags == KSMBD_RPC_ENOTIMPLEMENTED) { 750138c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_SUPPORTED; 750238c8a9a5SSteve French goto out; 750338c8a9a5SSteve French } else if (rpc_resp->flags != KSMBD_RPC_OK) { 750438c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 750538c8a9a5SSteve French goto out; 750638c8a9a5SSteve French } 750738c8a9a5SSteve French 750838c8a9a5SSteve French nbytes = rpc_resp->payload_sz; 750938c8a9a5SSteve French if (rpc_resp->payload_sz > out_buf_len) { 751038c8a9a5SSteve French rsp->hdr.Status = STATUS_BUFFER_OVERFLOW; 751138c8a9a5SSteve French nbytes = out_buf_len; 751238c8a9a5SSteve French } 751338c8a9a5SSteve French 751438c8a9a5SSteve French if (!rpc_resp->payload_sz) { 751538c8a9a5SSteve French rsp->hdr.Status = 751638c8a9a5SSteve French STATUS_UNEXPECTED_IO_ERROR; 751738c8a9a5SSteve French goto out; 751838c8a9a5SSteve French } 751938c8a9a5SSteve French 752038c8a9a5SSteve French memcpy((char *)rsp->Buffer, rpc_resp->payload, nbytes); 752138c8a9a5SSteve French } 752238c8a9a5SSteve French out: 752338c8a9a5SSteve French kvfree(rpc_resp); 752438c8a9a5SSteve French return nbytes; 752538c8a9a5SSteve French } 752638c8a9a5SSteve French 752738c8a9a5SSteve French static inline int fsctl_set_sparse(struct ksmbd_work *work, u64 id, 752838c8a9a5SSteve French struct file_sparse *sparse) 752938c8a9a5SSteve French { 753038c8a9a5SSteve French struct ksmbd_file *fp; 753138c8a9a5SSteve French struct mnt_idmap *idmap; 753238c8a9a5SSteve French int ret = 0; 753338c8a9a5SSteve French __le32 old_fattr; 753438c8a9a5SSteve French 753538c8a9a5SSteve French fp = ksmbd_lookup_fd_fast(work, id); 753638c8a9a5SSteve French if (!fp) 753738c8a9a5SSteve French return -ENOENT; 753838c8a9a5SSteve French idmap = file_mnt_idmap(fp->filp); 753938c8a9a5SSteve French 754038c8a9a5SSteve French old_fattr = fp->f_ci->m_fattr; 754138c8a9a5SSteve French if (sparse->SetSparse) 754238c8a9a5SSteve French fp->f_ci->m_fattr |= FILE_ATTRIBUTE_SPARSE_FILE_LE; 754338c8a9a5SSteve French else 754438c8a9a5SSteve French fp->f_ci->m_fattr &= ~FILE_ATTRIBUTE_SPARSE_FILE_LE; 754538c8a9a5SSteve French 754638c8a9a5SSteve French if (fp->f_ci->m_fattr != old_fattr && 754738c8a9a5SSteve French test_share_config_flag(work->tcon->share_conf, 754838c8a9a5SSteve French KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) { 754938c8a9a5SSteve French struct xattr_dos_attrib da; 755038c8a9a5SSteve French 755138c8a9a5SSteve French ret = ksmbd_vfs_get_dos_attrib_xattr(idmap, 755238c8a9a5SSteve French fp->filp->f_path.dentry, &da); 755338c8a9a5SSteve French if (ret <= 0) 755438c8a9a5SSteve French goto out; 755538c8a9a5SSteve French 755638c8a9a5SSteve French da.attr = le32_to_cpu(fp->f_ci->m_fattr); 755738c8a9a5SSteve French ret = ksmbd_vfs_set_dos_attrib_xattr(idmap, 755840b268d3SNamjae Jeon &fp->filp->f_path, &da); 755938c8a9a5SSteve French if (ret) 756038c8a9a5SSteve French fp->f_ci->m_fattr = old_fattr; 756138c8a9a5SSteve French } 756238c8a9a5SSteve French 756338c8a9a5SSteve French out: 756438c8a9a5SSteve French ksmbd_fd_put(work, fp); 756538c8a9a5SSteve French return ret; 756638c8a9a5SSteve French } 756738c8a9a5SSteve French 756838c8a9a5SSteve French static int fsctl_request_resume_key(struct ksmbd_work *work, 756938c8a9a5SSteve French struct smb2_ioctl_req *req, 757038c8a9a5SSteve French struct resume_key_ioctl_rsp *key_rsp) 757138c8a9a5SSteve French { 757238c8a9a5SSteve French struct ksmbd_file *fp; 757338c8a9a5SSteve French 757438c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); 757538c8a9a5SSteve French if (!fp) 757638c8a9a5SSteve French return -ENOENT; 757738c8a9a5SSteve French 757838c8a9a5SSteve French memset(key_rsp, 0, sizeof(*key_rsp)); 757938c8a9a5SSteve French key_rsp->ResumeKey[0] = req->VolatileFileId; 758038c8a9a5SSteve French key_rsp->ResumeKey[1] = req->PersistentFileId; 758138c8a9a5SSteve French ksmbd_fd_put(work, fp); 758238c8a9a5SSteve French 758338c8a9a5SSteve French return 0; 758438c8a9a5SSteve French } 758538c8a9a5SSteve French 758638c8a9a5SSteve French /** 758738c8a9a5SSteve French * smb2_ioctl() - handler for smb2 ioctl command 758838c8a9a5SSteve French * @work: smb work containing ioctl command buffer 758938c8a9a5SSteve French * 759038c8a9a5SSteve French * Return: 0 on success, otherwise error 759138c8a9a5SSteve French */ 759238c8a9a5SSteve French int smb2_ioctl(struct ksmbd_work *work) 759338c8a9a5SSteve French { 759438c8a9a5SSteve French struct smb2_ioctl_req *req; 759538c8a9a5SSteve French struct smb2_ioctl_rsp *rsp; 759638c8a9a5SSteve French unsigned int cnt_code, nbytes = 0, out_buf_len, in_buf_len; 759738c8a9a5SSteve French u64 id = KSMBD_NO_FID; 759838c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 759938c8a9a5SSteve French int ret = 0; 760038c8a9a5SSteve French 760138c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) { 760238c8a9a5SSteve French req = ksmbd_req_buf_next(work); 760338c8a9a5SSteve French rsp = ksmbd_resp_buf_next(work); 760438c8a9a5SSteve French if (!has_file_id(req->VolatileFileId)) { 760538c8a9a5SSteve French ksmbd_debug(SMB, "Compound request set FID = %llu\n", 760638c8a9a5SSteve French work->compound_fid); 760738c8a9a5SSteve French id = work->compound_fid; 760838c8a9a5SSteve French } 760938c8a9a5SSteve French } else { 761038c8a9a5SSteve French req = smb2_get_msg(work->request_buf); 761138c8a9a5SSteve French rsp = smb2_get_msg(work->response_buf); 761238c8a9a5SSteve French } 761338c8a9a5SSteve French 761438c8a9a5SSteve French if (!has_file_id(id)) 761538c8a9a5SSteve French id = req->VolatileFileId; 761638c8a9a5SSteve French 761738c8a9a5SSteve French if (req->Flags != cpu_to_le32(SMB2_0_IOCTL_IS_FSCTL)) { 761838c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_SUPPORTED; 761938c8a9a5SSteve French goto out; 762038c8a9a5SSteve French } 762138c8a9a5SSteve French 762238c8a9a5SSteve French cnt_code = le32_to_cpu(req->CtlCode); 762338c8a9a5SSteve French ret = smb2_calc_max_out_buf_len(work, 48, 762438c8a9a5SSteve French le32_to_cpu(req->MaxOutputResponse)); 762538c8a9a5SSteve French if (ret < 0) { 762638c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 762738c8a9a5SSteve French goto out; 762838c8a9a5SSteve French } 762938c8a9a5SSteve French out_buf_len = (unsigned int)ret; 763038c8a9a5SSteve French in_buf_len = le32_to_cpu(req->InputCount); 763138c8a9a5SSteve French 763238c8a9a5SSteve French switch (cnt_code) { 763338c8a9a5SSteve French case FSCTL_DFS_GET_REFERRALS: 763438c8a9a5SSteve French case FSCTL_DFS_GET_REFERRALS_EX: 763538c8a9a5SSteve French /* Not support DFS yet */ 763638c8a9a5SSteve French rsp->hdr.Status = STATUS_FS_DRIVER_REQUIRED; 763738c8a9a5SSteve French goto out; 763838c8a9a5SSteve French case FSCTL_CREATE_OR_GET_OBJECT_ID: 763938c8a9a5SSteve French { 764038c8a9a5SSteve French struct file_object_buf_type1_ioctl_rsp *obj_buf; 764138c8a9a5SSteve French 764238c8a9a5SSteve French nbytes = sizeof(struct file_object_buf_type1_ioctl_rsp); 764338c8a9a5SSteve French obj_buf = (struct file_object_buf_type1_ioctl_rsp *) 764438c8a9a5SSteve French &rsp->Buffer[0]; 764538c8a9a5SSteve French 764638c8a9a5SSteve French /* 764738c8a9a5SSteve French * TODO: This is dummy implementation to pass smbtorture 764838c8a9a5SSteve French * Need to check correct response later 764938c8a9a5SSteve French */ 765038c8a9a5SSteve French memset(obj_buf->ObjectId, 0x0, 16); 765138c8a9a5SSteve French memset(obj_buf->BirthVolumeId, 0x0, 16); 765238c8a9a5SSteve French memset(obj_buf->BirthObjectId, 0x0, 16); 765338c8a9a5SSteve French memset(obj_buf->DomainId, 0x0, 16); 765438c8a9a5SSteve French 765538c8a9a5SSteve French break; 765638c8a9a5SSteve French } 765738c8a9a5SSteve French case FSCTL_PIPE_TRANSCEIVE: 765838c8a9a5SSteve French out_buf_len = min_t(u32, KSMBD_IPC_MAX_PAYLOAD, out_buf_len); 765938c8a9a5SSteve French nbytes = fsctl_pipe_transceive(work, id, out_buf_len, req, rsp); 766038c8a9a5SSteve French break; 766138c8a9a5SSteve French case FSCTL_VALIDATE_NEGOTIATE_INFO: 766238c8a9a5SSteve French if (conn->dialect < SMB30_PROT_ID) { 766338c8a9a5SSteve French ret = -EOPNOTSUPP; 766438c8a9a5SSteve French goto out; 766538c8a9a5SSteve French } 766638c8a9a5SSteve French 766738c8a9a5SSteve French if (in_buf_len < offsetof(struct validate_negotiate_info_req, 766838c8a9a5SSteve French Dialects)) { 766938c8a9a5SSteve French ret = -EINVAL; 767038c8a9a5SSteve French goto out; 767138c8a9a5SSteve French } 767238c8a9a5SSteve French 767338c8a9a5SSteve French if (out_buf_len < sizeof(struct validate_negotiate_info_rsp)) { 767438c8a9a5SSteve French ret = -EINVAL; 767538c8a9a5SSteve French goto out; 767638c8a9a5SSteve French } 767738c8a9a5SSteve French 767838c8a9a5SSteve French ret = fsctl_validate_negotiate_info(conn, 767938c8a9a5SSteve French (struct validate_negotiate_info_req *)&req->Buffer[0], 768038c8a9a5SSteve French (struct validate_negotiate_info_rsp *)&rsp->Buffer[0], 768138c8a9a5SSteve French in_buf_len); 768238c8a9a5SSteve French if (ret < 0) 768338c8a9a5SSteve French goto out; 768438c8a9a5SSteve French 768538c8a9a5SSteve French nbytes = sizeof(struct validate_negotiate_info_rsp); 768638c8a9a5SSteve French rsp->PersistentFileId = SMB2_NO_FID; 768738c8a9a5SSteve French rsp->VolatileFileId = SMB2_NO_FID; 768838c8a9a5SSteve French break; 768938c8a9a5SSteve French case FSCTL_QUERY_NETWORK_INTERFACE_INFO: 769038c8a9a5SSteve French ret = fsctl_query_iface_info_ioctl(conn, rsp, out_buf_len); 769138c8a9a5SSteve French if (ret < 0) 769238c8a9a5SSteve French goto out; 769338c8a9a5SSteve French nbytes = ret; 769438c8a9a5SSteve French break; 769538c8a9a5SSteve French case FSCTL_REQUEST_RESUME_KEY: 769638c8a9a5SSteve French if (out_buf_len < sizeof(struct resume_key_ioctl_rsp)) { 769738c8a9a5SSteve French ret = -EINVAL; 769838c8a9a5SSteve French goto out; 769938c8a9a5SSteve French } 770038c8a9a5SSteve French 770138c8a9a5SSteve French ret = fsctl_request_resume_key(work, req, 770238c8a9a5SSteve French (struct resume_key_ioctl_rsp *)&rsp->Buffer[0]); 770338c8a9a5SSteve French if (ret < 0) 770438c8a9a5SSteve French goto out; 770538c8a9a5SSteve French rsp->PersistentFileId = req->PersistentFileId; 770638c8a9a5SSteve French rsp->VolatileFileId = req->VolatileFileId; 770738c8a9a5SSteve French nbytes = sizeof(struct resume_key_ioctl_rsp); 770838c8a9a5SSteve French break; 770938c8a9a5SSteve French case FSCTL_COPYCHUNK: 771038c8a9a5SSteve French case FSCTL_COPYCHUNK_WRITE: 771138c8a9a5SSteve French if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 771238c8a9a5SSteve French ksmbd_debug(SMB, 771338c8a9a5SSteve French "User does not have write permission\n"); 771438c8a9a5SSteve French ret = -EACCES; 771538c8a9a5SSteve French goto out; 771638c8a9a5SSteve French } 771738c8a9a5SSteve French 771838c8a9a5SSteve French if (in_buf_len < sizeof(struct copychunk_ioctl_req)) { 771938c8a9a5SSteve French ret = -EINVAL; 772038c8a9a5SSteve French goto out; 772138c8a9a5SSteve French } 772238c8a9a5SSteve French 772338c8a9a5SSteve French if (out_buf_len < sizeof(struct copychunk_ioctl_rsp)) { 772438c8a9a5SSteve French ret = -EINVAL; 772538c8a9a5SSteve French goto out; 772638c8a9a5SSteve French } 772738c8a9a5SSteve French 772838c8a9a5SSteve French nbytes = sizeof(struct copychunk_ioctl_rsp); 772938c8a9a5SSteve French rsp->VolatileFileId = req->VolatileFileId; 773038c8a9a5SSteve French rsp->PersistentFileId = req->PersistentFileId; 773138c8a9a5SSteve French fsctl_copychunk(work, 773238c8a9a5SSteve French (struct copychunk_ioctl_req *)&req->Buffer[0], 773338c8a9a5SSteve French le32_to_cpu(req->CtlCode), 773438c8a9a5SSteve French le32_to_cpu(req->InputCount), 773538c8a9a5SSteve French req->VolatileFileId, 773638c8a9a5SSteve French req->PersistentFileId, 773738c8a9a5SSteve French rsp); 773838c8a9a5SSteve French break; 773938c8a9a5SSteve French case FSCTL_SET_SPARSE: 774038c8a9a5SSteve French if (in_buf_len < sizeof(struct file_sparse)) { 774138c8a9a5SSteve French ret = -EINVAL; 774238c8a9a5SSteve French goto out; 774338c8a9a5SSteve French } 774438c8a9a5SSteve French 774538c8a9a5SSteve French ret = fsctl_set_sparse(work, id, 774638c8a9a5SSteve French (struct file_sparse *)&req->Buffer[0]); 774738c8a9a5SSteve French if (ret < 0) 774838c8a9a5SSteve French goto out; 774938c8a9a5SSteve French break; 775038c8a9a5SSteve French case FSCTL_SET_ZERO_DATA: 775138c8a9a5SSteve French { 775238c8a9a5SSteve French struct file_zero_data_information *zero_data; 775338c8a9a5SSteve French struct ksmbd_file *fp; 775438c8a9a5SSteve French loff_t off, len, bfz; 775538c8a9a5SSteve French 775638c8a9a5SSteve French if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 775738c8a9a5SSteve French ksmbd_debug(SMB, 775838c8a9a5SSteve French "User does not have write permission\n"); 775938c8a9a5SSteve French ret = -EACCES; 776038c8a9a5SSteve French goto out; 776138c8a9a5SSteve French } 776238c8a9a5SSteve French 776338c8a9a5SSteve French if (in_buf_len < sizeof(struct file_zero_data_information)) { 776438c8a9a5SSteve French ret = -EINVAL; 776538c8a9a5SSteve French goto out; 776638c8a9a5SSteve French } 776738c8a9a5SSteve French 776838c8a9a5SSteve French zero_data = 776938c8a9a5SSteve French (struct file_zero_data_information *)&req->Buffer[0]; 777038c8a9a5SSteve French 777138c8a9a5SSteve French off = le64_to_cpu(zero_data->FileOffset); 777238c8a9a5SSteve French bfz = le64_to_cpu(zero_data->BeyondFinalZero); 777338c8a9a5SSteve French if (off < 0 || bfz < 0 || off > bfz) { 777438c8a9a5SSteve French ret = -EINVAL; 777538c8a9a5SSteve French goto out; 777638c8a9a5SSteve French } 777738c8a9a5SSteve French 777838c8a9a5SSteve French len = bfz - off; 777938c8a9a5SSteve French if (len) { 778038c8a9a5SSteve French fp = ksmbd_lookup_fd_fast(work, id); 778138c8a9a5SSteve French if (!fp) { 778238c8a9a5SSteve French ret = -ENOENT; 778338c8a9a5SSteve French goto out; 778438c8a9a5SSteve French } 778538c8a9a5SSteve French 778638c8a9a5SSteve French ret = ksmbd_vfs_zero_data(work, fp, off, len); 778738c8a9a5SSteve French ksmbd_fd_put(work, fp); 778838c8a9a5SSteve French if (ret < 0) 778938c8a9a5SSteve French goto out; 779038c8a9a5SSteve French } 779138c8a9a5SSteve French break; 779238c8a9a5SSteve French } 779338c8a9a5SSteve French case FSCTL_QUERY_ALLOCATED_RANGES: 779438c8a9a5SSteve French if (in_buf_len < sizeof(struct file_allocated_range_buffer)) { 779538c8a9a5SSteve French ret = -EINVAL; 779638c8a9a5SSteve French goto out; 779738c8a9a5SSteve French } 779838c8a9a5SSteve French 779938c8a9a5SSteve French ret = fsctl_query_allocated_ranges(work, id, 780038c8a9a5SSteve French (struct file_allocated_range_buffer *)&req->Buffer[0], 780138c8a9a5SSteve French (struct file_allocated_range_buffer *)&rsp->Buffer[0], 780238c8a9a5SSteve French out_buf_len / 780338c8a9a5SSteve French sizeof(struct file_allocated_range_buffer), &nbytes); 780438c8a9a5SSteve French if (ret == -E2BIG) { 780538c8a9a5SSteve French rsp->hdr.Status = STATUS_BUFFER_OVERFLOW; 780638c8a9a5SSteve French } else if (ret < 0) { 780738c8a9a5SSteve French nbytes = 0; 780838c8a9a5SSteve French goto out; 780938c8a9a5SSteve French } 781038c8a9a5SSteve French 781138c8a9a5SSteve French nbytes *= sizeof(struct file_allocated_range_buffer); 781238c8a9a5SSteve French break; 781338c8a9a5SSteve French case FSCTL_GET_REPARSE_POINT: 781438c8a9a5SSteve French { 781538c8a9a5SSteve French struct reparse_data_buffer *reparse_ptr; 781638c8a9a5SSteve French struct ksmbd_file *fp; 781738c8a9a5SSteve French 781838c8a9a5SSteve French reparse_ptr = (struct reparse_data_buffer *)&rsp->Buffer[0]; 781938c8a9a5SSteve French fp = ksmbd_lookup_fd_fast(work, id); 782038c8a9a5SSteve French if (!fp) { 782138c8a9a5SSteve French pr_err("not found fp!!\n"); 782238c8a9a5SSteve French ret = -ENOENT; 782338c8a9a5SSteve French goto out; 782438c8a9a5SSteve French } 782538c8a9a5SSteve French 782638c8a9a5SSteve French reparse_ptr->ReparseTag = 782738c8a9a5SSteve French smb2_get_reparse_tag_special_file(file_inode(fp->filp)->i_mode); 782838c8a9a5SSteve French reparse_ptr->ReparseDataLength = 0; 782938c8a9a5SSteve French ksmbd_fd_put(work, fp); 783038c8a9a5SSteve French nbytes = sizeof(struct reparse_data_buffer); 783138c8a9a5SSteve French break; 783238c8a9a5SSteve French } 783338c8a9a5SSteve French case FSCTL_DUPLICATE_EXTENTS_TO_FILE: 783438c8a9a5SSteve French { 783538c8a9a5SSteve French struct ksmbd_file *fp_in, *fp_out = NULL; 783638c8a9a5SSteve French struct duplicate_extents_to_file *dup_ext; 783738c8a9a5SSteve French loff_t src_off, dst_off, length, cloned; 783838c8a9a5SSteve French 783938c8a9a5SSteve French if (in_buf_len < sizeof(struct duplicate_extents_to_file)) { 784038c8a9a5SSteve French ret = -EINVAL; 784138c8a9a5SSteve French goto out; 784238c8a9a5SSteve French } 784338c8a9a5SSteve French 784438c8a9a5SSteve French dup_ext = (struct duplicate_extents_to_file *)&req->Buffer[0]; 784538c8a9a5SSteve French 784638c8a9a5SSteve French fp_in = ksmbd_lookup_fd_slow(work, dup_ext->VolatileFileHandle, 784738c8a9a5SSteve French dup_ext->PersistentFileHandle); 784838c8a9a5SSteve French if (!fp_in) { 784938c8a9a5SSteve French pr_err("not found file handle in duplicate extent to file\n"); 785038c8a9a5SSteve French ret = -ENOENT; 785138c8a9a5SSteve French goto out; 785238c8a9a5SSteve French } 785338c8a9a5SSteve French 785438c8a9a5SSteve French fp_out = ksmbd_lookup_fd_fast(work, id); 785538c8a9a5SSteve French if (!fp_out) { 785638c8a9a5SSteve French pr_err("not found fp\n"); 785738c8a9a5SSteve French ret = -ENOENT; 785838c8a9a5SSteve French goto dup_ext_out; 785938c8a9a5SSteve French } 786038c8a9a5SSteve French 786138c8a9a5SSteve French src_off = le64_to_cpu(dup_ext->SourceFileOffset); 786238c8a9a5SSteve French dst_off = le64_to_cpu(dup_ext->TargetFileOffset); 786338c8a9a5SSteve French length = le64_to_cpu(dup_ext->ByteCount); 786438c8a9a5SSteve French /* 786538c8a9a5SSteve French * XXX: It is not clear if FSCTL_DUPLICATE_EXTENTS_TO_FILE 786638c8a9a5SSteve French * should fall back to vfs_copy_file_range(). This could be 786738c8a9a5SSteve French * beneficial when re-exporting nfs/smb mount, but note that 786838c8a9a5SSteve French * this can result in partial copy that returns an error status. 786938c8a9a5SSteve French * If/when FSCTL_DUPLICATE_EXTENTS_TO_FILE_EX is implemented, 787038c8a9a5SSteve French * fall back to vfs_copy_file_range(), should be avoided when 787138c8a9a5SSteve French * the flag DUPLICATE_EXTENTS_DATA_EX_SOURCE_ATOMIC is set. 787238c8a9a5SSteve French */ 787338c8a9a5SSteve French cloned = vfs_clone_file_range(fp_in->filp, src_off, 787438c8a9a5SSteve French fp_out->filp, dst_off, length, 0); 787538c8a9a5SSteve French if (cloned == -EXDEV || cloned == -EOPNOTSUPP) { 787638c8a9a5SSteve French ret = -EOPNOTSUPP; 787738c8a9a5SSteve French goto dup_ext_out; 787838c8a9a5SSteve French } else if (cloned != length) { 787938c8a9a5SSteve French cloned = vfs_copy_file_range(fp_in->filp, src_off, 788038c8a9a5SSteve French fp_out->filp, dst_off, 788138c8a9a5SSteve French length, 0); 788238c8a9a5SSteve French if (cloned != length) { 788338c8a9a5SSteve French if (cloned < 0) 788438c8a9a5SSteve French ret = cloned; 788538c8a9a5SSteve French else 788638c8a9a5SSteve French ret = -EINVAL; 788738c8a9a5SSteve French } 788838c8a9a5SSteve French } 788938c8a9a5SSteve French 789038c8a9a5SSteve French dup_ext_out: 789138c8a9a5SSteve French ksmbd_fd_put(work, fp_in); 789238c8a9a5SSteve French ksmbd_fd_put(work, fp_out); 789338c8a9a5SSteve French if (ret < 0) 789438c8a9a5SSteve French goto out; 789538c8a9a5SSteve French break; 789638c8a9a5SSteve French } 789738c8a9a5SSteve French default: 789838c8a9a5SSteve French ksmbd_debug(SMB, "not implemented yet ioctl command 0x%x\n", 789938c8a9a5SSteve French cnt_code); 790038c8a9a5SSteve French ret = -EOPNOTSUPP; 790138c8a9a5SSteve French goto out; 790238c8a9a5SSteve French } 790338c8a9a5SSteve French 790438c8a9a5SSteve French rsp->CtlCode = cpu_to_le32(cnt_code); 790538c8a9a5SSteve French rsp->InputCount = cpu_to_le32(0); 790638c8a9a5SSteve French rsp->InputOffset = cpu_to_le32(112); 790738c8a9a5SSteve French rsp->OutputOffset = cpu_to_le32(112); 790838c8a9a5SSteve French rsp->OutputCount = cpu_to_le32(nbytes); 790938c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(49); 791038c8a9a5SSteve French rsp->Reserved = cpu_to_le16(0); 791138c8a9a5SSteve French rsp->Flags = cpu_to_le32(0); 791238c8a9a5SSteve French rsp->Reserved2 = cpu_to_le32(0); 7913e2b76ab8SNamjae Jeon ret = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_ioctl_rsp) + nbytes); 7914e2b76ab8SNamjae Jeon if (!ret) 7915e2b76ab8SNamjae Jeon return ret; 791638c8a9a5SSteve French 791738c8a9a5SSteve French out: 791838c8a9a5SSteve French if (ret == -EACCES) 791938c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 792038c8a9a5SSteve French else if (ret == -ENOENT) 792138c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND; 792238c8a9a5SSteve French else if (ret == -EOPNOTSUPP) 792338c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_SUPPORTED; 792438c8a9a5SSteve French else if (ret == -ENOSPC) 792538c8a9a5SSteve French rsp->hdr.Status = STATUS_BUFFER_TOO_SMALL; 792638c8a9a5SSteve French else if (ret < 0 || rsp->hdr.Status == 0) 792738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 792838c8a9a5SSteve French smb2_set_err_rsp(work); 792938c8a9a5SSteve French return 0; 793038c8a9a5SSteve French } 793138c8a9a5SSteve French 793238c8a9a5SSteve French /** 793338c8a9a5SSteve French * smb20_oplock_break_ack() - handler for smb2.0 oplock break command 793438c8a9a5SSteve French * @work: smb work containing oplock break command buffer 793538c8a9a5SSteve French * 793638c8a9a5SSteve French * Return: 0 793738c8a9a5SSteve French */ 793838c8a9a5SSteve French static void smb20_oplock_break_ack(struct ksmbd_work *work) 793938c8a9a5SSteve French { 79407b7d709eSNamjae Jeon struct smb2_oplock_break *req; 79417b7d709eSNamjae Jeon struct smb2_oplock_break *rsp; 794238c8a9a5SSteve French struct ksmbd_file *fp; 794338c8a9a5SSteve French struct oplock_info *opinfo = NULL; 794438c8a9a5SSteve French __le32 err = 0; 794538c8a9a5SSteve French int ret = 0; 794638c8a9a5SSteve French u64 volatile_id, persistent_id; 794738c8a9a5SSteve French char req_oplevel = 0, rsp_oplevel = 0; 794838c8a9a5SSteve French unsigned int oplock_change_type; 794938c8a9a5SSteve French 79507b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 79517b7d709eSNamjae Jeon 795238c8a9a5SSteve French volatile_id = req->VolatileFid; 795338c8a9a5SSteve French persistent_id = req->PersistentFid; 795438c8a9a5SSteve French req_oplevel = req->OplockLevel; 795538c8a9a5SSteve French ksmbd_debug(OPLOCK, "v_id %llu, p_id %llu request oplock level %d\n", 795638c8a9a5SSteve French volatile_id, persistent_id, req_oplevel); 795738c8a9a5SSteve French 795838c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, volatile_id, persistent_id); 795938c8a9a5SSteve French if (!fp) { 796038c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 796138c8a9a5SSteve French smb2_set_err_rsp(work); 796238c8a9a5SSteve French return; 796338c8a9a5SSteve French } 796438c8a9a5SSteve French 796538c8a9a5SSteve French opinfo = opinfo_get(fp); 796638c8a9a5SSteve French if (!opinfo) { 796738c8a9a5SSteve French pr_err("unexpected null oplock_info\n"); 796838c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_OPLOCK_PROTOCOL; 796938c8a9a5SSteve French smb2_set_err_rsp(work); 797038c8a9a5SSteve French ksmbd_fd_put(work, fp); 797138c8a9a5SSteve French return; 797238c8a9a5SSteve French } 797338c8a9a5SSteve French 797438c8a9a5SSteve French if (opinfo->level == SMB2_OPLOCK_LEVEL_NONE) { 797538c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_OPLOCK_PROTOCOL; 797638c8a9a5SSteve French goto err_out; 797738c8a9a5SSteve French } 797838c8a9a5SSteve French 797938c8a9a5SSteve French if (opinfo->op_state == OPLOCK_STATE_NONE) { 798038c8a9a5SSteve French ksmbd_debug(SMB, "unexpected oplock state 0x%x\n", opinfo->op_state); 798138c8a9a5SSteve French rsp->hdr.Status = STATUS_UNSUCCESSFUL; 798238c8a9a5SSteve French goto err_out; 798338c8a9a5SSteve French } 798438c8a9a5SSteve French 798538c8a9a5SSteve French if ((opinfo->level == SMB2_OPLOCK_LEVEL_EXCLUSIVE || 798638c8a9a5SSteve French opinfo->level == SMB2_OPLOCK_LEVEL_BATCH) && 798738c8a9a5SSteve French (req_oplevel != SMB2_OPLOCK_LEVEL_II && 798838c8a9a5SSteve French req_oplevel != SMB2_OPLOCK_LEVEL_NONE)) { 798938c8a9a5SSteve French err = STATUS_INVALID_OPLOCK_PROTOCOL; 799038c8a9a5SSteve French oplock_change_type = OPLOCK_WRITE_TO_NONE; 799138c8a9a5SSteve French } else if (opinfo->level == SMB2_OPLOCK_LEVEL_II && 799238c8a9a5SSteve French req_oplevel != SMB2_OPLOCK_LEVEL_NONE) { 799338c8a9a5SSteve French err = STATUS_INVALID_OPLOCK_PROTOCOL; 799438c8a9a5SSteve French oplock_change_type = OPLOCK_READ_TO_NONE; 799538c8a9a5SSteve French } else if (req_oplevel == SMB2_OPLOCK_LEVEL_II || 799638c8a9a5SSteve French req_oplevel == SMB2_OPLOCK_LEVEL_NONE) { 799738c8a9a5SSteve French err = STATUS_INVALID_DEVICE_STATE; 799838c8a9a5SSteve French if ((opinfo->level == SMB2_OPLOCK_LEVEL_EXCLUSIVE || 799938c8a9a5SSteve French opinfo->level == SMB2_OPLOCK_LEVEL_BATCH) && 800038c8a9a5SSteve French req_oplevel == SMB2_OPLOCK_LEVEL_II) { 800138c8a9a5SSteve French oplock_change_type = OPLOCK_WRITE_TO_READ; 800238c8a9a5SSteve French } else if ((opinfo->level == SMB2_OPLOCK_LEVEL_EXCLUSIVE || 800338c8a9a5SSteve French opinfo->level == SMB2_OPLOCK_LEVEL_BATCH) && 800438c8a9a5SSteve French req_oplevel == SMB2_OPLOCK_LEVEL_NONE) { 800538c8a9a5SSteve French oplock_change_type = OPLOCK_WRITE_TO_NONE; 800638c8a9a5SSteve French } else if (opinfo->level == SMB2_OPLOCK_LEVEL_II && 800738c8a9a5SSteve French req_oplevel == SMB2_OPLOCK_LEVEL_NONE) { 800838c8a9a5SSteve French oplock_change_type = OPLOCK_READ_TO_NONE; 800938c8a9a5SSteve French } else { 801038c8a9a5SSteve French oplock_change_type = 0; 801138c8a9a5SSteve French } 801238c8a9a5SSteve French } else { 801338c8a9a5SSteve French oplock_change_type = 0; 801438c8a9a5SSteve French } 801538c8a9a5SSteve French 801638c8a9a5SSteve French switch (oplock_change_type) { 801738c8a9a5SSteve French case OPLOCK_WRITE_TO_READ: 801838c8a9a5SSteve French ret = opinfo_write_to_read(opinfo); 801938c8a9a5SSteve French rsp_oplevel = SMB2_OPLOCK_LEVEL_II; 802038c8a9a5SSteve French break; 802138c8a9a5SSteve French case OPLOCK_WRITE_TO_NONE: 802238c8a9a5SSteve French ret = opinfo_write_to_none(opinfo); 802338c8a9a5SSteve French rsp_oplevel = SMB2_OPLOCK_LEVEL_NONE; 802438c8a9a5SSteve French break; 802538c8a9a5SSteve French case OPLOCK_READ_TO_NONE: 802638c8a9a5SSteve French ret = opinfo_read_to_none(opinfo); 802738c8a9a5SSteve French rsp_oplevel = SMB2_OPLOCK_LEVEL_NONE; 802838c8a9a5SSteve French break; 802938c8a9a5SSteve French default: 803038c8a9a5SSteve French pr_err("unknown oplock change 0x%x -> 0x%x\n", 803138c8a9a5SSteve French opinfo->level, rsp_oplevel); 803238c8a9a5SSteve French } 803338c8a9a5SSteve French 803438c8a9a5SSteve French if (ret < 0) { 803538c8a9a5SSteve French rsp->hdr.Status = err; 803638c8a9a5SSteve French goto err_out; 803738c8a9a5SSteve French } 803838c8a9a5SSteve French 803938c8a9a5SSteve French opinfo_put(opinfo); 804038c8a9a5SSteve French ksmbd_fd_put(work, fp); 804138c8a9a5SSteve French opinfo->op_state = OPLOCK_STATE_NONE; 804238c8a9a5SSteve French wake_up_interruptible_all(&opinfo->oplock_q); 804338c8a9a5SSteve French 804438c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(24); 804538c8a9a5SSteve French rsp->OplockLevel = rsp_oplevel; 804638c8a9a5SSteve French rsp->Reserved = 0; 804738c8a9a5SSteve French rsp->Reserved2 = 0; 804838c8a9a5SSteve French rsp->VolatileFid = volatile_id; 804938c8a9a5SSteve French rsp->PersistentFid = persistent_id; 8050e2b76ab8SNamjae Jeon ret = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_oplock_break)); 8051e2b76ab8SNamjae Jeon if (!ret) 805238c8a9a5SSteve French return; 805338c8a9a5SSteve French 805438c8a9a5SSteve French err_out: 805538c8a9a5SSteve French opinfo->op_state = OPLOCK_STATE_NONE; 805638c8a9a5SSteve French wake_up_interruptible_all(&opinfo->oplock_q); 805738c8a9a5SSteve French 805838c8a9a5SSteve French opinfo_put(opinfo); 805938c8a9a5SSteve French ksmbd_fd_put(work, fp); 806038c8a9a5SSteve French smb2_set_err_rsp(work); 806138c8a9a5SSteve French } 806238c8a9a5SSteve French 806338c8a9a5SSteve French static int check_lease_state(struct lease *lease, __le32 req_state) 806438c8a9a5SSteve French { 806538c8a9a5SSteve French if ((lease->new_state == 806638c8a9a5SSteve French (SMB2_LEASE_READ_CACHING_LE | SMB2_LEASE_HANDLE_CACHING_LE)) && 806738c8a9a5SSteve French !(req_state & SMB2_LEASE_WRITE_CACHING_LE)) { 806838c8a9a5SSteve French lease->new_state = req_state; 806938c8a9a5SSteve French return 0; 807038c8a9a5SSteve French } 807138c8a9a5SSteve French 807238c8a9a5SSteve French if (lease->new_state == req_state) 807338c8a9a5SSteve French return 0; 807438c8a9a5SSteve French 807538c8a9a5SSteve French return 1; 807638c8a9a5SSteve French } 807738c8a9a5SSteve French 807838c8a9a5SSteve French /** 807938c8a9a5SSteve French * smb21_lease_break_ack() - handler for smb2.1 lease break command 808038c8a9a5SSteve French * @work: smb work containing lease break command buffer 808138c8a9a5SSteve French * 808238c8a9a5SSteve French * Return: 0 808338c8a9a5SSteve French */ 808438c8a9a5SSteve French static void smb21_lease_break_ack(struct ksmbd_work *work) 808538c8a9a5SSteve French { 808638c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 80877b7d709eSNamjae Jeon struct smb2_lease_ack *req; 80887b7d709eSNamjae Jeon struct smb2_lease_ack *rsp; 808938c8a9a5SSteve French struct oplock_info *opinfo; 809038c8a9a5SSteve French __le32 err = 0; 809138c8a9a5SSteve French int ret = 0; 809238c8a9a5SSteve French unsigned int lease_change_type; 809338c8a9a5SSteve French __le32 lease_state; 809438c8a9a5SSteve French struct lease *lease; 809538c8a9a5SSteve French 80967b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 80977b7d709eSNamjae Jeon 809838c8a9a5SSteve French ksmbd_debug(OPLOCK, "smb21 lease break, lease state(0x%x)\n", 809938c8a9a5SSteve French le32_to_cpu(req->LeaseState)); 810038c8a9a5SSteve French opinfo = lookup_lease_in_table(conn, req->LeaseKey); 810138c8a9a5SSteve French if (!opinfo) { 810238c8a9a5SSteve French ksmbd_debug(OPLOCK, "file not opened\n"); 810338c8a9a5SSteve French smb2_set_err_rsp(work); 810438c8a9a5SSteve French rsp->hdr.Status = STATUS_UNSUCCESSFUL; 810538c8a9a5SSteve French return; 810638c8a9a5SSteve French } 810738c8a9a5SSteve French lease = opinfo->o_lease; 810838c8a9a5SSteve French 810938c8a9a5SSteve French if (opinfo->op_state == OPLOCK_STATE_NONE) { 811038c8a9a5SSteve French pr_err("unexpected lease break state 0x%x\n", 811138c8a9a5SSteve French opinfo->op_state); 811238c8a9a5SSteve French rsp->hdr.Status = STATUS_UNSUCCESSFUL; 811338c8a9a5SSteve French goto err_out; 811438c8a9a5SSteve French } 811538c8a9a5SSteve French 811638c8a9a5SSteve French if (check_lease_state(lease, req->LeaseState)) { 811738c8a9a5SSteve French rsp->hdr.Status = STATUS_REQUEST_NOT_ACCEPTED; 811838c8a9a5SSteve French ksmbd_debug(OPLOCK, 811938c8a9a5SSteve French "req lease state: 0x%x, expected state: 0x%x\n", 812038c8a9a5SSteve French req->LeaseState, lease->new_state); 812138c8a9a5SSteve French goto err_out; 812238c8a9a5SSteve French } 812338c8a9a5SSteve French 812438c8a9a5SSteve French if (!atomic_read(&opinfo->breaking_cnt)) { 812538c8a9a5SSteve French rsp->hdr.Status = STATUS_UNSUCCESSFUL; 812638c8a9a5SSteve French goto err_out; 812738c8a9a5SSteve French } 812838c8a9a5SSteve French 812938c8a9a5SSteve French /* check for bad lease state */ 813038c8a9a5SSteve French if (req->LeaseState & 813138c8a9a5SSteve French (~(SMB2_LEASE_READ_CACHING_LE | SMB2_LEASE_HANDLE_CACHING_LE))) { 813238c8a9a5SSteve French err = STATUS_INVALID_OPLOCK_PROTOCOL; 813338c8a9a5SSteve French if (lease->state & SMB2_LEASE_WRITE_CACHING_LE) 813438c8a9a5SSteve French lease_change_type = OPLOCK_WRITE_TO_NONE; 813538c8a9a5SSteve French else 813638c8a9a5SSteve French lease_change_type = OPLOCK_READ_TO_NONE; 813738c8a9a5SSteve French ksmbd_debug(OPLOCK, "handle bad lease state 0x%x -> 0x%x\n", 813838c8a9a5SSteve French le32_to_cpu(lease->state), 813938c8a9a5SSteve French le32_to_cpu(req->LeaseState)); 814038c8a9a5SSteve French } else if (lease->state == SMB2_LEASE_READ_CACHING_LE && 814138c8a9a5SSteve French req->LeaseState != SMB2_LEASE_NONE_LE) { 814238c8a9a5SSteve French err = STATUS_INVALID_OPLOCK_PROTOCOL; 814338c8a9a5SSteve French lease_change_type = OPLOCK_READ_TO_NONE; 814438c8a9a5SSteve French ksmbd_debug(OPLOCK, "handle bad lease state 0x%x -> 0x%x\n", 814538c8a9a5SSteve French le32_to_cpu(lease->state), 814638c8a9a5SSteve French le32_to_cpu(req->LeaseState)); 814738c8a9a5SSteve French } else { 814838c8a9a5SSteve French /* valid lease state changes */ 814938c8a9a5SSteve French err = STATUS_INVALID_DEVICE_STATE; 815038c8a9a5SSteve French if (req->LeaseState == SMB2_LEASE_NONE_LE) { 815138c8a9a5SSteve French if (lease->state & SMB2_LEASE_WRITE_CACHING_LE) 815238c8a9a5SSteve French lease_change_type = OPLOCK_WRITE_TO_NONE; 815338c8a9a5SSteve French else 815438c8a9a5SSteve French lease_change_type = OPLOCK_READ_TO_NONE; 815538c8a9a5SSteve French } else if (req->LeaseState & SMB2_LEASE_READ_CACHING_LE) { 815638c8a9a5SSteve French if (lease->state & SMB2_LEASE_WRITE_CACHING_LE) 815738c8a9a5SSteve French lease_change_type = OPLOCK_WRITE_TO_READ; 815838c8a9a5SSteve French else 815938c8a9a5SSteve French lease_change_type = OPLOCK_READ_HANDLE_TO_READ; 816038c8a9a5SSteve French } else { 816138c8a9a5SSteve French lease_change_type = 0; 816238c8a9a5SSteve French } 816338c8a9a5SSteve French } 816438c8a9a5SSteve French 816538c8a9a5SSteve French switch (lease_change_type) { 816638c8a9a5SSteve French case OPLOCK_WRITE_TO_READ: 816738c8a9a5SSteve French ret = opinfo_write_to_read(opinfo); 816838c8a9a5SSteve French break; 816938c8a9a5SSteve French case OPLOCK_READ_HANDLE_TO_READ: 817038c8a9a5SSteve French ret = opinfo_read_handle_to_read(opinfo); 817138c8a9a5SSteve French break; 817238c8a9a5SSteve French case OPLOCK_WRITE_TO_NONE: 817338c8a9a5SSteve French ret = opinfo_write_to_none(opinfo); 817438c8a9a5SSteve French break; 817538c8a9a5SSteve French case OPLOCK_READ_TO_NONE: 817638c8a9a5SSteve French ret = opinfo_read_to_none(opinfo); 817738c8a9a5SSteve French break; 817838c8a9a5SSteve French default: 817938c8a9a5SSteve French ksmbd_debug(OPLOCK, "unknown lease change 0x%x -> 0x%x\n", 818038c8a9a5SSteve French le32_to_cpu(lease->state), 818138c8a9a5SSteve French le32_to_cpu(req->LeaseState)); 818238c8a9a5SSteve French } 818338c8a9a5SSteve French 818438c8a9a5SSteve French lease_state = lease->state; 818538c8a9a5SSteve French opinfo->op_state = OPLOCK_STATE_NONE; 818638c8a9a5SSteve French wake_up_interruptible_all(&opinfo->oplock_q); 818738c8a9a5SSteve French atomic_dec(&opinfo->breaking_cnt); 818838c8a9a5SSteve French wake_up_interruptible_all(&opinfo->oplock_brk); 818938c8a9a5SSteve French opinfo_put(opinfo); 819038c8a9a5SSteve French 819138c8a9a5SSteve French if (ret < 0) { 819238c8a9a5SSteve French rsp->hdr.Status = err; 819338c8a9a5SSteve French goto err_out; 819438c8a9a5SSteve French } 819538c8a9a5SSteve French 819638c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(36); 819738c8a9a5SSteve French rsp->Reserved = 0; 819838c8a9a5SSteve French rsp->Flags = 0; 819938c8a9a5SSteve French memcpy(rsp->LeaseKey, req->LeaseKey, 16); 820038c8a9a5SSteve French rsp->LeaseState = lease_state; 820138c8a9a5SSteve French rsp->LeaseDuration = 0; 8202e2b76ab8SNamjae Jeon ret = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_lease_ack)); 8203e2b76ab8SNamjae Jeon if (!ret) 820438c8a9a5SSteve French return; 820538c8a9a5SSteve French 820638c8a9a5SSteve French err_out: 820738c8a9a5SSteve French opinfo->op_state = OPLOCK_STATE_NONE; 820838c8a9a5SSteve French wake_up_interruptible_all(&opinfo->oplock_q); 820938c8a9a5SSteve French atomic_dec(&opinfo->breaking_cnt); 821038c8a9a5SSteve French wake_up_interruptible_all(&opinfo->oplock_brk); 821138c8a9a5SSteve French 821238c8a9a5SSteve French opinfo_put(opinfo); 821338c8a9a5SSteve French smb2_set_err_rsp(work); 821438c8a9a5SSteve French } 821538c8a9a5SSteve French 821638c8a9a5SSteve French /** 821738c8a9a5SSteve French * smb2_oplock_break() - dispatcher for smb2.0 and 2.1 oplock/lease break 821838c8a9a5SSteve French * @work: smb work containing oplock/lease break command buffer 821938c8a9a5SSteve French * 822038c8a9a5SSteve French * Return: 0 822138c8a9a5SSteve French */ 822238c8a9a5SSteve French int smb2_oplock_break(struct ksmbd_work *work) 822338c8a9a5SSteve French { 82247b7d709eSNamjae Jeon struct smb2_oplock_break *req; 82257b7d709eSNamjae Jeon struct smb2_oplock_break *rsp; 82267b7d709eSNamjae Jeon 82277b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 822838c8a9a5SSteve French 822938c8a9a5SSteve French switch (le16_to_cpu(req->StructureSize)) { 823038c8a9a5SSteve French case OP_BREAK_STRUCT_SIZE_20: 823138c8a9a5SSteve French smb20_oplock_break_ack(work); 823238c8a9a5SSteve French break; 823338c8a9a5SSteve French case OP_BREAK_STRUCT_SIZE_21: 823438c8a9a5SSteve French smb21_lease_break_ack(work); 823538c8a9a5SSteve French break; 823638c8a9a5SSteve French default: 823738c8a9a5SSteve French ksmbd_debug(OPLOCK, "invalid break cmd %d\n", 823838c8a9a5SSteve French le16_to_cpu(req->StructureSize)); 823938c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 824038c8a9a5SSteve French smb2_set_err_rsp(work); 824138c8a9a5SSteve French } 824238c8a9a5SSteve French 824338c8a9a5SSteve French return 0; 824438c8a9a5SSteve French } 824538c8a9a5SSteve French 824638c8a9a5SSteve French /** 824738c8a9a5SSteve French * smb2_notify() - handler for smb2 notify request 824838c8a9a5SSteve French * @work: smb work containing notify command buffer 824938c8a9a5SSteve French * 825038c8a9a5SSteve French * Return: 0 825138c8a9a5SSteve French */ 825238c8a9a5SSteve French int smb2_notify(struct ksmbd_work *work) 825338c8a9a5SSteve French { 825438c8a9a5SSteve French struct smb2_change_notify_req *req; 825538c8a9a5SSteve French struct smb2_change_notify_rsp *rsp; 825638c8a9a5SSteve French 825738c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 825838c8a9a5SSteve French 825938c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off && req->hdr.NextCommand) { 826038c8a9a5SSteve French rsp->hdr.Status = STATUS_INTERNAL_ERROR; 826138c8a9a5SSteve French smb2_set_err_rsp(work); 826238c8a9a5SSteve French return 0; 826338c8a9a5SSteve French } 826438c8a9a5SSteve French 826538c8a9a5SSteve French smb2_set_err_rsp(work); 826638c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_IMPLEMENTED; 826738c8a9a5SSteve French return 0; 826838c8a9a5SSteve French } 826938c8a9a5SSteve French 827038c8a9a5SSteve French /** 827138c8a9a5SSteve French * smb2_is_sign_req() - handler for checking packet signing status 827238c8a9a5SSteve French * @work: smb work containing notify command buffer 827338c8a9a5SSteve French * @command: SMB2 command id 827438c8a9a5SSteve French * 827538c8a9a5SSteve French * Return: true if packed is signed, false otherwise 827638c8a9a5SSteve French */ 827738c8a9a5SSteve French bool smb2_is_sign_req(struct ksmbd_work *work, unsigned int command) 827838c8a9a5SSteve French { 827938c8a9a5SSteve French struct smb2_hdr *rcv_hdr2 = smb2_get_msg(work->request_buf); 828038c8a9a5SSteve French 828138c8a9a5SSteve French if ((rcv_hdr2->Flags & SMB2_FLAGS_SIGNED) && 828238c8a9a5SSteve French command != SMB2_NEGOTIATE_HE && 828338c8a9a5SSteve French command != SMB2_SESSION_SETUP_HE && 828438c8a9a5SSteve French command != SMB2_OPLOCK_BREAK_HE) 828538c8a9a5SSteve French return true; 828638c8a9a5SSteve French 828738c8a9a5SSteve French return false; 828838c8a9a5SSteve French } 828938c8a9a5SSteve French 829038c8a9a5SSteve French /** 829138c8a9a5SSteve French * smb2_check_sign_req() - handler for req packet sign processing 829238c8a9a5SSteve French * @work: smb work containing notify command buffer 829338c8a9a5SSteve French * 829438c8a9a5SSteve French * Return: 1 on success, 0 otherwise 829538c8a9a5SSteve French */ 829638c8a9a5SSteve French int smb2_check_sign_req(struct ksmbd_work *work) 829738c8a9a5SSteve French { 829838c8a9a5SSteve French struct smb2_hdr *hdr; 829938c8a9a5SSteve French char signature_req[SMB2_SIGNATURE_SIZE]; 830038c8a9a5SSteve French char signature[SMB2_HMACSHA256_SIZE]; 830138c8a9a5SSteve French struct kvec iov[1]; 830238c8a9a5SSteve French size_t len; 830338c8a9a5SSteve French 830438c8a9a5SSteve French hdr = smb2_get_msg(work->request_buf); 830538c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) 830638c8a9a5SSteve French hdr = ksmbd_req_buf_next(work); 830738c8a9a5SSteve French 830838c8a9a5SSteve French if (!hdr->NextCommand && !work->next_smb2_rcv_hdr_off) 830938c8a9a5SSteve French len = get_rfc1002_len(work->request_buf); 831038c8a9a5SSteve French else if (hdr->NextCommand) 831138c8a9a5SSteve French len = le32_to_cpu(hdr->NextCommand); 831238c8a9a5SSteve French else 831338c8a9a5SSteve French len = get_rfc1002_len(work->request_buf) - 831438c8a9a5SSteve French work->next_smb2_rcv_hdr_off; 831538c8a9a5SSteve French 831638c8a9a5SSteve French memcpy(signature_req, hdr->Signature, SMB2_SIGNATURE_SIZE); 831738c8a9a5SSteve French memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE); 831838c8a9a5SSteve French 831938c8a9a5SSteve French iov[0].iov_base = (char *)&hdr->ProtocolId; 832038c8a9a5SSteve French iov[0].iov_len = len; 832138c8a9a5SSteve French 832238c8a9a5SSteve French if (ksmbd_sign_smb2_pdu(work->conn, work->sess->sess_key, iov, 1, 832338c8a9a5SSteve French signature)) 832438c8a9a5SSteve French return 0; 832538c8a9a5SSteve French 832638c8a9a5SSteve French if (memcmp(signature, signature_req, SMB2_SIGNATURE_SIZE)) { 832738c8a9a5SSteve French pr_err("bad smb2 signature\n"); 832838c8a9a5SSteve French return 0; 832938c8a9a5SSteve French } 833038c8a9a5SSteve French 833138c8a9a5SSteve French return 1; 833238c8a9a5SSteve French } 833338c8a9a5SSteve French 833438c8a9a5SSteve French /** 833538c8a9a5SSteve French * smb2_set_sign_rsp() - handler for rsp packet sign processing 833638c8a9a5SSteve French * @work: smb work containing notify command buffer 833738c8a9a5SSteve French * 833838c8a9a5SSteve French */ 833938c8a9a5SSteve French void smb2_set_sign_rsp(struct ksmbd_work *work) 834038c8a9a5SSteve French { 834138c8a9a5SSteve French struct smb2_hdr *hdr; 834238c8a9a5SSteve French char signature[SMB2_HMACSHA256_SIZE]; 8343e2b76ab8SNamjae Jeon struct kvec *iov; 834438c8a9a5SSteve French int n_vec = 1; 834538c8a9a5SSteve French 8346e2b76ab8SNamjae Jeon hdr = ksmbd_resp_buf_curr(work); 834738c8a9a5SSteve French hdr->Flags |= SMB2_FLAGS_SIGNED; 834838c8a9a5SSteve French memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE); 834938c8a9a5SSteve French 8350e2b76ab8SNamjae Jeon if (hdr->Command == SMB2_READ) { 8351e2b76ab8SNamjae Jeon iov = &work->iov[work->iov_idx - 1]; 835238c8a9a5SSteve French n_vec++; 8353e2b76ab8SNamjae Jeon } else { 8354e2b76ab8SNamjae Jeon iov = &work->iov[work->iov_idx]; 835538c8a9a5SSteve French } 835638c8a9a5SSteve French 835738c8a9a5SSteve French if (!ksmbd_sign_smb2_pdu(work->conn, work->sess->sess_key, iov, n_vec, 835838c8a9a5SSteve French signature)) 835938c8a9a5SSteve French memcpy(hdr->Signature, signature, SMB2_SIGNATURE_SIZE); 836038c8a9a5SSteve French } 836138c8a9a5SSteve French 836238c8a9a5SSteve French /** 836338c8a9a5SSteve French * smb3_check_sign_req() - handler for req packet sign processing 836438c8a9a5SSteve French * @work: smb work containing notify command buffer 836538c8a9a5SSteve French * 836638c8a9a5SSteve French * Return: 1 on success, 0 otherwise 836738c8a9a5SSteve French */ 836838c8a9a5SSteve French int smb3_check_sign_req(struct ksmbd_work *work) 836938c8a9a5SSteve French { 837038c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 837138c8a9a5SSteve French char *signing_key; 837238c8a9a5SSteve French struct smb2_hdr *hdr; 837338c8a9a5SSteve French struct channel *chann; 837438c8a9a5SSteve French char signature_req[SMB2_SIGNATURE_SIZE]; 837538c8a9a5SSteve French char signature[SMB2_CMACAES_SIZE]; 837638c8a9a5SSteve French struct kvec iov[1]; 837738c8a9a5SSteve French size_t len; 837838c8a9a5SSteve French 837938c8a9a5SSteve French hdr = smb2_get_msg(work->request_buf); 838038c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) 838138c8a9a5SSteve French hdr = ksmbd_req_buf_next(work); 838238c8a9a5SSteve French 838338c8a9a5SSteve French if (!hdr->NextCommand && !work->next_smb2_rcv_hdr_off) 838438c8a9a5SSteve French len = get_rfc1002_len(work->request_buf); 838538c8a9a5SSteve French else if (hdr->NextCommand) 838638c8a9a5SSteve French len = le32_to_cpu(hdr->NextCommand); 838738c8a9a5SSteve French else 838838c8a9a5SSteve French len = get_rfc1002_len(work->request_buf) - 838938c8a9a5SSteve French work->next_smb2_rcv_hdr_off; 839038c8a9a5SSteve French 839138c8a9a5SSteve French if (le16_to_cpu(hdr->Command) == SMB2_SESSION_SETUP_HE) { 839238c8a9a5SSteve French signing_key = work->sess->smb3signingkey; 839338c8a9a5SSteve French } else { 839438c8a9a5SSteve French chann = lookup_chann_list(work->sess, conn); 839538c8a9a5SSteve French if (!chann) { 839638c8a9a5SSteve French return 0; 839738c8a9a5SSteve French } 839838c8a9a5SSteve French signing_key = chann->smb3signingkey; 839938c8a9a5SSteve French } 840038c8a9a5SSteve French 840138c8a9a5SSteve French if (!signing_key) { 840238c8a9a5SSteve French pr_err("SMB3 signing key is not generated\n"); 840338c8a9a5SSteve French return 0; 840438c8a9a5SSteve French } 840538c8a9a5SSteve French 840638c8a9a5SSteve French memcpy(signature_req, hdr->Signature, SMB2_SIGNATURE_SIZE); 840738c8a9a5SSteve French memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE); 840838c8a9a5SSteve French iov[0].iov_base = (char *)&hdr->ProtocolId; 840938c8a9a5SSteve French iov[0].iov_len = len; 841038c8a9a5SSteve French 841138c8a9a5SSteve French if (ksmbd_sign_smb3_pdu(conn, signing_key, iov, 1, signature)) 841238c8a9a5SSteve French return 0; 841338c8a9a5SSteve French 841438c8a9a5SSteve French if (memcmp(signature, signature_req, SMB2_SIGNATURE_SIZE)) { 841538c8a9a5SSteve French pr_err("bad smb2 signature\n"); 841638c8a9a5SSteve French return 0; 841738c8a9a5SSteve French } 841838c8a9a5SSteve French 841938c8a9a5SSteve French return 1; 842038c8a9a5SSteve French } 842138c8a9a5SSteve French 842238c8a9a5SSteve French /** 842338c8a9a5SSteve French * smb3_set_sign_rsp() - handler for rsp packet sign processing 842438c8a9a5SSteve French * @work: smb work containing notify command buffer 842538c8a9a5SSteve French * 842638c8a9a5SSteve French */ 842738c8a9a5SSteve French void smb3_set_sign_rsp(struct ksmbd_work *work) 842838c8a9a5SSteve French { 842938c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 8430e2b76ab8SNamjae Jeon struct smb2_hdr *hdr; 843138c8a9a5SSteve French struct channel *chann; 843238c8a9a5SSteve French char signature[SMB2_CMACAES_SIZE]; 8433e2b76ab8SNamjae Jeon struct kvec *iov; 843438c8a9a5SSteve French int n_vec = 1; 843538c8a9a5SSteve French char *signing_key; 843638c8a9a5SSteve French 8437e2b76ab8SNamjae Jeon hdr = ksmbd_resp_buf_curr(work); 843838c8a9a5SSteve French 843938c8a9a5SSteve French if (conn->binding == false && 844038c8a9a5SSteve French le16_to_cpu(hdr->Command) == SMB2_SESSION_SETUP_HE) { 844138c8a9a5SSteve French signing_key = work->sess->smb3signingkey; 844238c8a9a5SSteve French } else { 844338c8a9a5SSteve French chann = lookup_chann_list(work->sess, work->conn); 844438c8a9a5SSteve French if (!chann) { 844538c8a9a5SSteve French return; 844638c8a9a5SSteve French } 844738c8a9a5SSteve French signing_key = chann->smb3signingkey; 844838c8a9a5SSteve French } 844938c8a9a5SSteve French 845038c8a9a5SSteve French if (!signing_key) 845138c8a9a5SSteve French return; 845238c8a9a5SSteve French 845338c8a9a5SSteve French hdr->Flags |= SMB2_FLAGS_SIGNED; 845438c8a9a5SSteve French memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE); 8455e2b76ab8SNamjae Jeon 8456e2b76ab8SNamjae Jeon if (hdr->Command == SMB2_READ) { 8457e2b76ab8SNamjae Jeon iov = &work->iov[work->iov_idx - 1]; 845838c8a9a5SSteve French n_vec++; 8459e2b76ab8SNamjae Jeon } else { 8460e2b76ab8SNamjae Jeon iov = &work->iov[work->iov_idx]; 846138c8a9a5SSteve French } 846238c8a9a5SSteve French 8463e2b76ab8SNamjae Jeon if (!ksmbd_sign_smb3_pdu(conn, signing_key, iov, n_vec, 8464e2b76ab8SNamjae Jeon signature)) 846538c8a9a5SSteve French memcpy(hdr->Signature, signature, SMB2_SIGNATURE_SIZE); 846638c8a9a5SSteve French } 846738c8a9a5SSteve French 846838c8a9a5SSteve French /** 846938c8a9a5SSteve French * smb3_preauth_hash_rsp() - handler for computing preauth hash on response 847038c8a9a5SSteve French * @work: smb work containing response buffer 847138c8a9a5SSteve French * 847238c8a9a5SSteve French */ 847338c8a9a5SSteve French void smb3_preauth_hash_rsp(struct ksmbd_work *work) 847438c8a9a5SSteve French { 847538c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 847638c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 847738c8a9a5SSteve French struct smb2_hdr *req, *rsp; 847838c8a9a5SSteve French 847938c8a9a5SSteve French if (conn->dialect != SMB311_PROT_ID) 848038c8a9a5SSteve French return; 848138c8a9a5SSteve French 848238c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 848338c8a9a5SSteve French 848438c8a9a5SSteve French if (le16_to_cpu(req->Command) == SMB2_NEGOTIATE_HE && 848538c8a9a5SSteve French conn->preauth_info) 848638c8a9a5SSteve French ksmbd_gen_preauth_integrity_hash(conn, work->response_buf, 848738c8a9a5SSteve French conn->preauth_info->Preauth_HashValue); 848838c8a9a5SSteve French 848938c8a9a5SSteve French if (le16_to_cpu(rsp->Command) == SMB2_SESSION_SETUP_HE && sess) { 849038c8a9a5SSteve French __u8 *hash_value; 849138c8a9a5SSteve French 849238c8a9a5SSteve French if (conn->binding) { 849338c8a9a5SSteve French struct preauth_session *preauth_sess; 849438c8a9a5SSteve French 849538c8a9a5SSteve French preauth_sess = ksmbd_preauth_session_lookup(conn, sess->id); 849638c8a9a5SSteve French if (!preauth_sess) 849738c8a9a5SSteve French return; 849838c8a9a5SSteve French hash_value = preauth_sess->Preauth_HashValue; 849938c8a9a5SSteve French } else { 850038c8a9a5SSteve French hash_value = sess->Preauth_HashValue; 850138c8a9a5SSteve French if (!hash_value) 850238c8a9a5SSteve French return; 850338c8a9a5SSteve French } 850438c8a9a5SSteve French ksmbd_gen_preauth_integrity_hash(conn, work->response_buf, 850538c8a9a5SSteve French hash_value); 850638c8a9a5SSteve French } 850738c8a9a5SSteve French } 850838c8a9a5SSteve French 850938c8a9a5SSteve French static void fill_transform_hdr(void *tr_buf, char *old_buf, __le16 cipher_type) 851038c8a9a5SSteve French { 851138c8a9a5SSteve French struct smb2_transform_hdr *tr_hdr = tr_buf + 4; 851238c8a9a5SSteve French struct smb2_hdr *hdr = smb2_get_msg(old_buf); 851338c8a9a5SSteve French unsigned int orig_len = get_rfc1002_len(old_buf); 851438c8a9a5SSteve French 851538c8a9a5SSteve French /* tr_buf must be cleared by the caller */ 851638c8a9a5SSteve French tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM; 851738c8a9a5SSteve French tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len); 851838c8a9a5SSteve French tr_hdr->Flags = cpu_to_le16(TRANSFORM_FLAG_ENCRYPTED); 851938c8a9a5SSteve French if (cipher_type == SMB2_ENCRYPTION_AES128_GCM || 852038c8a9a5SSteve French cipher_type == SMB2_ENCRYPTION_AES256_GCM) 852138c8a9a5SSteve French get_random_bytes(&tr_hdr->Nonce, SMB3_AES_GCM_NONCE); 852238c8a9a5SSteve French else 852338c8a9a5SSteve French get_random_bytes(&tr_hdr->Nonce, SMB3_AES_CCM_NONCE); 852438c8a9a5SSteve French memcpy(&tr_hdr->SessionId, &hdr->SessionId, 8); 852538c8a9a5SSteve French inc_rfc1001_len(tr_buf, sizeof(struct smb2_transform_hdr)); 852638c8a9a5SSteve French inc_rfc1001_len(tr_buf, orig_len); 852738c8a9a5SSteve French } 852838c8a9a5SSteve French 852938c8a9a5SSteve French int smb3_encrypt_resp(struct ksmbd_work *work) 853038c8a9a5SSteve French { 8531e2b76ab8SNamjae Jeon struct kvec *iov = work->iov; 853238c8a9a5SSteve French int rc = -ENOMEM; 8533e2b76ab8SNamjae Jeon void *tr_buf; 853438c8a9a5SSteve French 8535e2b76ab8SNamjae Jeon tr_buf = kzalloc(sizeof(struct smb2_transform_hdr) + 4, GFP_KERNEL); 8536e2b76ab8SNamjae Jeon if (!tr_buf) 853738c8a9a5SSteve French return rc; 853838c8a9a5SSteve French 853938c8a9a5SSteve French /* fill transform header */ 8540e2b76ab8SNamjae Jeon fill_transform_hdr(tr_buf, work->response_buf, work->conn->cipher_type); 854138c8a9a5SSteve French 8542e2b76ab8SNamjae Jeon iov[0].iov_base = tr_buf; 854338c8a9a5SSteve French iov[0].iov_len = sizeof(struct smb2_transform_hdr) + 4; 8544e2b76ab8SNamjae Jeon work->tr_buf = tr_buf; 854538c8a9a5SSteve French 8546e2b76ab8SNamjae Jeon return ksmbd_crypt_message(work, iov, work->iov_idx + 1, 1); 854738c8a9a5SSteve French } 854838c8a9a5SSteve French 854938c8a9a5SSteve French bool smb3_is_transform_hdr(void *buf) 855038c8a9a5SSteve French { 855138c8a9a5SSteve French struct smb2_transform_hdr *trhdr = smb2_get_msg(buf); 855238c8a9a5SSteve French 855338c8a9a5SSteve French return trhdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM; 855438c8a9a5SSteve French } 855538c8a9a5SSteve French 855638c8a9a5SSteve French int smb3_decrypt_req(struct ksmbd_work *work) 855738c8a9a5SSteve French { 855838c8a9a5SSteve French struct ksmbd_session *sess; 855938c8a9a5SSteve French char *buf = work->request_buf; 856038c8a9a5SSteve French unsigned int pdu_length = get_rfc1002_len(buf); 856138c8a9a5SSteve French struct kvec iov[2]; 856238c8a9a5SSteve French int buf_data_size = pdu_length - sizeof(struct smb2_transform_hdr); 856338c8a9a5SSteve French struct smb2_transform_hdr *tr_hdr = smb2_get_msg(buf); 856438c8a9a5SSteve French int rc = 0; 856538c8a9a5SSteve French 8566dc318846SNamjae Jeon if (pdu_length < sizeof(struct smb2_transform_hdr) || 8567dc318846SNamjae Jeon buf_data_size < sizeof(struct smb2_hdr)) { 856838c8a9a5SSteve French pr_err("Transform message is too small (%u)\n", 856938c8a9a5SSteve French pdu_length); 857038c8a9a5SSteve French return -ECONNABORTED; 857138c8a9a5SSteve French } 857238c8a9a5SSteve French 857338c8a9a5SSteve French if (buf_data_size < le32_to_cpu(tr_hdr->OriginalMessageSize)) { 857438c8a9a5SSteve French pr_err("Transform message is broken\n"); 857538c8a9a5SSteve French return -ECONNABORTED; 857638c8a9a5SSteve French } 857738c8a9a5SSteve French 857838c8a9a5SSteve French sess = ksmbd_session_lookup_all(work->conn, le64_to_cpu(tr_hdr->SessionId)); 857938c8a9a5SSteve French if (!sess) { 858038c8a9a5SSteve French pr_err("invalid session id(%llx) in transform header\n", 858138c8a9a5SSteve French le64_to_cpu(tr_hdr->SessionId)); 858238c8a9a5SSteve French return -ECONNABORTED; 858338c8a9a5SSteve French } 858438c8a9a5SSteve French 858538c8a9a5SSteve French iov[0].iov_base = buf; 858638c8a9a5SSteve French iov[0].iov_len = sizeof(struct smb2_transform_hdr) + 4; 858738c8a9a5SSteve French iov[1].iov_base = buf + sizeof(struct smb2_transform_hdr) + 4; 858838c8a9a5SSteve French iov[1].iov_len = buf_data_size; 858938c8a9a5SSteve French rc = ksmbd_crypt_message(work, iov, 2, 0); 859038c8a9a5SSteve French if (rc) 859138c8a9a5SSteve French return rc; 859238c8a9a5SSteve French 859338c8a9a5SSteve French memmove(buf + 4, iov[1].iov_base, buf_data_size); 859438c8a9a5SSteve French *(__be32 *)buf = cpu_to_be32(buf_data_size); 859538c8a9a5SSteve French 859638c8a9a5SSteve French return rc; 859738c8a9a5SSteve French } 859838c8a9a5SSteve French 859938c8a9a5SSteve French bool smb3_11_final_sess_setup_resp(struct ksmbd_work *work) 860038c8a9a5SSteve French { 860138c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 860238c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 860338c8a9a5SSteve French struct smb2_hdr *rsp = smb2_get_msg(work->response_buf); 860438c8a9a5SSteve French 860538c8a9a5SSteve French if (conn->dialect < SMB30_PROT_ID) 860638c8a9a5SSteve French return false; 860738c8a9a5SSteve French 860838c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) 860938c8a9a5SSteve French rsp = ksmbd_resp_buf_next(work); 861038c8a9a5SSteve French 861138c8a9a5SSteve French if (le16_to_cpu(rsp->Command) == SMB2_SESSION_SETUP_HE && 861238c8a9a5SSteve French sess->user && !user_guest(sess->user) && 861338c8a9a5SSteve French rsp->Status == STATUS_SUCCESS) 861438c8a9a5SSteve French return true; 861538c8a9a5SSteve French return false; 861638c8a9a5SSteve French } 8617