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 21677ca9da7dSNamjae Jeon ksmbd_conn_lock(conn); 21687ca9da7dSNamjae Jeon if (!ksmbd_conn_good(conn)) { 21697ca9da7dSNamjae Jeon ksmbd_conn_unlock(conn); 21707ca9da7dSNamjae Jeon rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED; 2171e2b76ab8SNamjae Jeon smb2_set_err_rsp(work); 21727ca9da7dSNamjae Jeon return -ENOENT; 2173e2b76ab8SNamjae Jeon } 21747ca9da7dSNamjae Jeon sess_id = le64_to_cpu(req->hdr.SessionId); 217538c8a9a5SSteve French ksmbd_all_conn_set_status(sess_id, KSMBD_SESS_NEED_RECONNECT); 21767ca9da7dSNamjae Jeon ksmbd_conn_unlock(conn); 21777ca9da7dSNamjae Jeon 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); 21997ca9da7dSNamjae Jeon 22007ca9da7dSNamjae Jeon rsp->StructureSize = cpu_to_le16(4); 22017ca9da7dSNamjae Jeon err = ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_logoff_rsp)); 22027ca9da7dSNamjae Jeon if (err) { 22037ca9da7dSNamjae Jeon rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 22047ca9da7dSNamjae Jeon smb2_set_err_rsp(work); 22057ca9da7dSNamjae Jeon return err; 22067ca9da7dSNamjae Jeon } 220738c8a9a5SSteve French return 0; 220838c8a9a5SSteve French } 220938c8a9a5SSteve French 221038c8a9a5SSteve French /** 221138c8a9a5SSteve French * create_smb2_pipe() - create IPC pipe 221238c8a9a5SSteve French * @work: smb work containing request buffer 221338c8a9a5SSteve French * 221438c8a9a5SSteve French * Return: 0 on success, otherwise error 221538c8a9a5SSteve French */ 221638c8a9a5SSteve French static noinline int create_smb2_pipe(struct ksmbd_work *work) 221738c8a9a5SSteve French { 22187b7d709eSNamjae Jeon struct smb2_create_rsp *rsp; 22197b7d709eSNamjae Jeon struct smb2_create_req *req; 222038c8a9a5SSteve French int id; 222138c8a9a5SSteve French int err; 222238c8a9a5SSteve French char *name; 222338c8a9a5SSteve French 22247b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 22257b7d709eSNamjae Jeon 222638c8a9a5SSteve French name = smb_strndup_from_utf16(req->Buffer, le16_to_cpu(req->NameLength), 222738c8a9a5SSteve French 1, work->conn->local_nls); 222838c8a9a5SSteve French if (IS_ERR(name)) { 222938c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MEMORY; 223038c8a9a5SSteve French err = PTR_ERR(name); 223138c8a9a5SSteve French goto out; 223238c8a9a5SSteve French } 223338c8a9a5SSteve French 223438c8a9a5SSteve French id = ksmbd_session_rpc_open(work->sess, name); 223538c8a9a5SSteve French if (id < 0) { 223638c8a9a5SSteve French pr_err("Unable to open RPC pipe: %d\n", id); 223738c8a9a5SSteve French err = id; 223838c8a9a5SSteve French goto out; 223938c8a9a5SSteve French } 224038c8a9a5SSteve French 224138c8a9a5SSteve French rsp->hdr.Status = STATUS_SUCCESS; 224238c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(89); 224338c8a9a5SSteve French rsp->OplockLevel = SMB2_OPLOCK_LEVEL_NONE; 224438c8a9a5SSteve French rsp->Flags = 0; 224538c8a9a5SSteve French rsp->CreateAction = cpu_to_le32(FILE_OPENED); 224638c8a9a5SSteve French 224738c8a9a5SSteve French rsp->CreationTime = cpu_to_le64(0); 224838c8a9a5SSteve French rsp->LastAccessTime = cpu_to_le64(0); 224938c8a9a5SSteve French rsp->ChangeTime = cpu_to_le64(0); 225038c8a9a5SSteve French rsp->AllocationSize = cpu_to_le64(0); 225138c8a9a5SSteve French rsp->EndofFile = cpu_to_le64(0); 225238c8a9a5SSteve French rsp->FileAttributes = FILE_ATTRIBUTE_NORMAL_LE; 225338c8a9a5SSteve French rsp->Reserved2 = 0; 225438c8a9a5SSteve French rsp->VolatileFileId = id; 225538c8a9a5SSteve French rsp->PersistentFileId = 0; 225638c8a9a5SSteve French rsp->CreateContextsOffset = 0; 225738c8a9a5SSteve French rsp->CreateContextsLength = 0; 225838c8a9a5SSteve French 2259e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, rsp, offsetof(struct smb2_create_rsp, Buffer)); 2260e2b76ab8SNamjae Jeon if (err) 2261e2b76ab8SNamjae Jeon goto out; 2262e2b76ab8SNamjae Jeon 226338c8a9a5SSteve French kfree(name); 226438c8a9a5SSteve French return 0; 226538c8a9a5SSteve French 226638c8a9a5SSteve French out: 226738c8a9a5SSteve French switch (err) { 226838c8a9a5SSteve French case -EINVAL: 226938c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 227038c8a9a5SSteve French break; 227138c8a9a5SSteve French case -ENOSPC: 227238c8a9a5SSteve French case -ENOMEM: 227338c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MEMORY; 227438c8a9a5SSteve French break; 227538c8a9a5SSteve French } 227638c8a9a5SSteve French 227738c8a9a5SSteve French if (!IS_ERR(name)) 227838c8a9a5SSteve French kfree(name); 227938c8a9a5SSteve French 228038c8a9a5SSteve French smb2_set_err_rsp(work); 228138c8a9a5SSteve French return err; 228238c8a9a5SSteve French } 228338c8a9a5SSteve French 228438c8a9a5SSteve French /** 228538c8a9a5SSteve French * smb2_set_ea() - handler for setting extended attributes using set 228638c8a9a5SSteve French * info command 228738c8a9a5SSteve French * @eabuf: set info command buffer 228838c8a9a5SSteve French * @buf_len: set info command buffer length 228938c8a9a5SSteve French * @path: dentry path for get ea 229038c8a9a5SSteve French * 229138c8a9a5SSteve French * Return: 0 on success, otherwise error 229238c8a9a5SSteve French */ 229338c8a9a5SSteve French static int smb2_set_ea(struct smb2_ea_info *eabuf, unsigned int buf_len, 229438c8a9a5SSteve French const struct path *path) 229538c8a9a5SSteve French { 229638c8a9a5SSteve French struct mnt_idmap *idmap = mnt_idmap(path->mnt); 229738c8a9a5SSteve French char *attr_name = NULL, *value; 229838c8a9a5SSteve French int rc = 0; 229938c8a9a5SSteve French unsigned int next = 0; 230038c8a9a5SSteve French 230138c8a9a5SSteve French if (buf_len < sizeof(struct smb2_ea_info) + eabuf->EaNameLength + 230238c8a9a5SSteve French le16_to_cpu(eabuf->EaValueLength)) 230338c8a9a5SSteve French return -EINVAL; 230438c8a9a5SSteve French 230538c8a9a5SSteve French attr_name = kmalloc(XATTR_NAME_MAX + 1, GFP_KERNEL); 230638c8a9a5SSteve French if (!attr_name) 230738c8a9a5SSteve French return -ENOMEM; 230838c8a9a5SSteve French 230938c8a9a5SSteve French do { 231038c8a9a5SSteve French if (!eabuf->EaNameLength) 231138c8a9a5SSteve French goto next; 231238c8a9a5SSteve French 231338c8a9a5SSteve French ksmbd_debug(SMB, 231438c8a9a5SSteve French "name : <%s>, name_len : %u, value_len : %u, next : %u\n", 231538c8a9a5SSteve French eabuf->name, eabuf->EaNameLength, 231638c8a9a5SSteve French le16_to_cpu(eabuf->EaValueLength), 231738c8a9a5SSteve French le32_to_cpu(eabuf->NextEntryOffset)); 231838c8a9a5SSteve French 231938c8a9a5SSteve French if (eabuf->EaNameLength > 232038c8a9a5SSteve French (XATTR_NAME_MAX - XATTR_USER_PREFIX_LEN)) { 232138c8a9a5SSteve French rc = -EINVAL; 232238c8a9a5SSteve French break; 232338c8a9a5SSteve French } 232438c8a9a5SSteve French 232538c8a9a5SSteve French memcpy(attr_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN); 232638c8a9a5SSteve French memcpy(&attr_name[XATTR_USER_PREFIX_LEN], eabuf->name, 232738c8a9a5SSteve French eabuf->EaNameLength); 232838c8a9a5SSteve French attr_name[XATTR_USER_PREFIX_LEN + eabuf->EaNameLength] = '\0'; 232938c8a9a5SSteve French value = (char *)&eabuf->name + eabuf->EaNameLength + 1; 233038c8a9a5SSteve French 233138c8a9a5SSteve French if (!eabuf->EaValueLength) { 233238c8a9a5SSteve French rc = ksmbd_vfs_casexattr_len(idmap, 233338c8a9a5SSteve French path->dentry, 233438c8a9a5SSteve French attr_name, 233538c8a9a5SSteve French XATTR_USER_PREFIX_LEN + 233638c8a9a5SSteve French eabuf->EaNameLength); 233738c8a9a5SSteve French 233838c8a9a5SSteve French /* delete the EA only when it exits */ 233938c8a9a5SSteve French if (rc > 0) { 234038c8a9a5SSteve French rc = ksmbd_vfs_remove_xattr(idmap, 234140b268d3SNamjae Jeon path, 234238c8a9a5SSteve French attr_name); 234338c8a9a5SSteve French 234438c8a9a5SSteve French if (rc < 0) { 234538c8a9a5SSteve French ksmbd_debug(SMB, 234638c8a9a5SSteve French "remove xattr failed(%d)\n", 234738c8a9a5SSteve French rc); 234838c8a9a5SSteve French break; 234938c8a9a5SSteve French } 235038c8a9a5SSteve French } 235138c8a9a5SSteve French 235238c8a9a5SSteve French /* if the EA doesn't exist, just do nothing. */ 235338c8a9a5SSteve French rc = 0; 235438c8a9a5SSteve French } else { 235540b268d3SNamjae Jeon rc = ksmbd_vfs_setxattr(idmap, path, attr_name, value, 235638c8a9a5SSteve French le16_to_cpu(eabuf->EaValueLength), 0); 235738c8a9a5SSteve French if (rc < 0) { 235838c8a9a5SSteve French ksmbd_debug(SMB, 235938c8a9a5SSteve French "ksmbd_vfs_setxattr is failed(%d)\n", 236038c8a9a5SSteve French rc); 236138c8a9a5SSteve French break; 236238c8a9a5SSteve French } 236338c8a9a5SSteve French } 236438c8a9a5SSteve French 236538c8a9a5SSteve French next: 236638c8a9a5SSteve French next = le32_to_cpu(eabuf->NextEntryOffset); 236738c8a9a5SSteve French if (next == 0 || buf_len < next) 236838c8a9a5SSteve French break; 236938c8a9a5SSteve French buf_len -= next; 237038c8a9a5SSteve French eabuf = (struct smb2_ea_info *)((char *)eabuf + next); 237179ed288cSNamjae Jeon if (buf_len < sizeof(struct smb2_ea_info)) { 237279ed288cSNamjae Jeon rc = -EINVAL; 237338c8a9a5SSteve French break; 237479ed288cSNamjae Jeon } 237538c8a9a5SSteve French 237679ed288cSNamjae Jeon if (buf_len < sizeof(struct smb2_ea_info) + eabuf->EaNameLength + 237779ed288cSNamjae Jeon le16_to_cpu(eabuf->EaValueLength)) { 237879ed288cSNamjae Jeon rc = -EINVAL; 237979ed288cSNamjae Jeon break; 238079ed288cSNamjae Jeon } 238138c8a9a5SSteve French } while (next != 0); 238238c8a9a5SSteve French 238338c8a9a5SSteve French kfree(attr_name); 238438c8a9a5SSteve French return rc; 238538c8a9a5SSteve French } 238638c8a9a5SSteve French 238738c8a9a5SSteve French static noinline int smb2_set_stream_name_xattr(const struct path *path, 238838c8a9a5SSteve French struct ksmbd_file *fp, 238938c8a9a5SSteve French char *stream_name, int s_type) 239038c8a9a5SSteve French { 239138c8a9a5SSteve French struct mnt_idmap *idmap = mnt_idmap(path->mnt); 239238c8a9a5SSteve French size_t xattr_stream_size; 239338c8a9a5SSteve French char *xattr_stream_name; 239438c8a9a5SSteve French int rc; 239538c8a9a5SSteve French 239638c8a9a5SSteve French rc = ksmbd_vfs_xattr_stream_name(stream_name, 239738c8a9a5SSteve French &xattr_stream_name, 239838c8a9a5SSteve French &xattr_stream_size, 239938c8a9a5SSteve French s_type); 240038c8a9a5SSteve French if (rc) 240138c8a9a5SSteve French return rc; 240238c8a9a5SSteve French 240338c8a9a5SSteve French fp->stream.name = xattr_stream_name; 240438c8a9a5SSteve French fp->stream.size = xattr_stream_size; 240538c8a9a5SSteve French 240638c8a9a5SSteve French /* Check if there is stream prefix in xattr space */ 240738c8a9a5SSteve French rc = ksmbd_vfs_casexattr_len(idmap, 240838c8a9a5SSteve French path->dentry, 240938c8a9a5SSteve French xattr_stream_name, 241038c8a9a5SSteve French xattr_stream_size); 241138c8a9a5SSteve French if (rc >= 0) 241238c8a9a5SSteve French return 0; 241338c8a9a5SSteve French 241438c8a9a5SSteve French if (fp->cdoption == FILE_OPEN_LE) { 241538c8a9a5SSteve French ksmbd_debug(SMB, "XATTR stream name lookup failed: %d\n", rc); 241638c8a9a5SSteve French return -EBADF; 241738c8a9a5SSteve French } 241838c8a9a5SSteve French 241940b268d3SNamjae Jeon rc = ksmbd_vfs_setxattr(idmap, path, xattr_stream_name, NULL, 0, 0); 242038c8a9a5SSteve French if (rc < 0) 242138c8a9a5SSteve French pr_err("Failed to store XATTR stream name :%d\n", rc); 242238c8a9a5SSteve French return 0; 242338c8a9a5SSteve French } 242438c8a9a5SSteve French 242538c8a9a5SSteve French static int smb2_remove_smb_xattrs(const struct path *path) 242638c8a9a5SSteve French { 242738c8a9a5SSteve French struct mnt_idmap *idmap = mnt_idmap(path->mnt); 242838c8a9a5SSteve French char *name, *xattr_list = NULL; 242938c8a9a5SSteve French ssize_t xattr_list_len; 243038c8a9a5SSteve French int err = 0; 243138c8a9a5SSteve French 243238c8a9a5SSteve French xattr_list_len = ksmbd_vfs_listxattr(path->dentry, &xattr_list); 243338c8a9a5SSteve French if (xattr_list_len < 0) { 243438c8a9a5SSteve French goto out; 243538c8a9a5SSteve French } else if (!xattr_list_len) { 243638c8a9a5SSteve French ksmbd_debug(SMB, "empty xattr in the file\n"); 243738c8a9a5SSteve French goto out; 243838c8a9a5SSteve French } 243938c8a9a5SSteve French 244038c8a9a5SSteve French for (name = xattr_list; name - xattr_list < xattr_list_len; 244138c8a9a5SSteve French name += strlen(name) + 1) { 244238c8a9a5SSteve French ksmbd_debug(SMB, "%s, len %zd\n", name, strlen(name)); 244338c8a9a5SSteve French 244438c8a9a5SSteve French if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) && 244538c8a9a5SSteve French !strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, 244638c8a9a5SSteve French STREAM_PREFIX_LEN)) { 244740b268d3SNamjae Jeon err = ksmbd_vfs_remove_xattr(idmap, path, 244838c8a9a5SSteve French name); 244938c8a9a5SSteve French if (err) 245038c8a9a5SSteve French ksmbd_debug(SMB, "remove xattr failed : %s\n", 245138c8a9a5SSteve French name); 245238c8a9a5SSteve French } 245338c8a9a5SSteve French } 245438c8a9a5SSteve French out: 245538c8a9a5SSteve French kvfree(xattr_list); 245638c8a9a5SSteve French return err; 245738c8a9a5SSteve French } 245838c8a9a5SSteve French 245938c8a9a5SSteve French static int smb2_create_truncate(const struct path *path) 246038c8a9a5SSteve French { 246138c8a9a5SSteve French int rc = vfs_truncate(path, 0); 246238c8a9a5SSteve French 246338c8a9a5SSteve French if (rc) { 246438c8a9a5SSteve French pr_err("vfs_truncate failed, rc %d\n", rc); 246538c8a9a5SSteve French return rc; 246638c8a9a5SSteve French } 246738c8a9a5SSteve French 246838c8a9a5SSteve French rc = smb2_remove_smb_xattrs(path); 246938c8a9a5SSteve French if (rc == -EOPNOTSUPP) 247038c8a9a5SSteve French rc = 0; 247138c8a9a5SSteve French if (rc) 247238c8a9a5SSteve French ksmbd_debug(SMB, 247338c8a9a5SSteve French "ksmbd_truncate_stream_name_xattr failed, rc %d\n", 247438c8a9a5SSteve French rc); 247538c8a9a5SSteve French return rc; 247638c8a9a5SSteve French } 247738c8a9a5SSteve French 247838c8a9a5SSteve French static void smb2_new_xattrs(struct ksmbd_tree_connect *tcon, const struct path *path, 247938c8a9a5SSteve French struct ksmbd_file *fp) 248038c8a9a5SSteve French { 248138c8a9a5SSteve French struct xattr_dos_attrib da = {0}; 248238c8a9a5SSteve French int rc; 248338c8a9a5SSteve French 248438c8a9a5SSteve French if (!test_share_config_flag(tcon->share_conf, 248538c8a9a5SSteve French KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) 248638c8a9a5SSteve French return; 248738c8a9a5SSteve French 248838c8a9a5SSteve French da.version = 4; 248938c8a9a5SSteve French da.attr = le32_to_cpu(fp->f_ci->m_fattr); 249038c8a9a5SSteve French da.itime = da.create_time = fp->create_time; 249138c8a9a5SSteve French da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME | 249238c8a9a5SSteve French XATTR_DOSINFO_ITIME; 249338c8a9a5SSteve French 249440b268d3SNamjae Jeon rc = ksmbd_vfs_set_dos_attrib_xattr(mnt_idmap(path->mnt), path, &da); 249538c8a9a5SSteve French if (rc) 249638c8a9a5SSteve French ksmbd_debug(SMB, "failed to store file attribute into xattr\n"); 249738c8a9a5SSteve French } 249838c8a9a5SSteve French 249938c8a9a5SSteve French static void smb2_update_xattrs(struct ksmbd_tree_connect *tcon, 250038c8a9a5SSteve French const struct path *path, struct ksmbd_file *fp) 250138c8a9a5SSteve French { 250238c8a9a5SSteve French struct xattr_dos_attrib da; 250338c8a9a5SSteve French int rc; 250438c8a9a5SSteve French 250538c8a9a5SSteve French fp->f_ci->m_fattr &= ~(FILE_ATTRIBUTE_HIDDEN_LE | FILE_ATTRIBUTE_SYSTEM_LE); 250638c8a9a5SSteve French 250738c8a9a5SSteve French /* get FileAttributes from XATTR_NAME_DOS_ATTRIBUTE */ 250838c8a9a5SSteve French if (!test_share_config_flag(tcon->share_conf, 250938c8a9a5SSteve French KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) 251038c8a9a5SSteve French return; 251138c8a9a5SSteve French 251238c8a9a5SSteve French rc = ksmbd_vfs_get_dos_attrib_xattr(mnt_idmap(path->mnt), 251338c8a9a5SSteve French path->dentry, &da); 251438c8a9a5SSteve French if (rc > 0) { 251538c8a9a5SSteve French fp->f_ci->m_fattr = cpu_to_le32(da.attr); 251638c8a9a5SSteve French fp->create_time = da.create_time; 251738c8a9a5SSteve French fp->itime = da.itime; 251838c8a9a5SSteve French } 251938c8a9a5SSteve French } 252038c8a9a5SSteve French 25212b57a432SNamjae Jeon static int smb2_creat(struct ksmbd_work *work, struct path *parent_path, 25222b57a432SNamjae Jeon struct path *path, char *name, int open_flags, 25232b57a432SNamjae Jeon umode_t posix_mode, bool is_dir) 252438c8a9a5SSteve French { 252538c8a9a5SSteve French struct ksmbd_tree_connect *tcon = work->tcon; 252638c8a9a5SSteve French struct ksmbd_share_config *share = tcon->share_conf; 252738c8a9a5SSteve French umode_t mode; 252838c8a9a5SSteve French int rc; 252938c8a9a5SSteve French 253038c8a9a5SSteve French if (!(open_flags & O_CREAT)) 253138c8a9a5SSteve French return -EBADF; 253238c8a9a5SSteve French 253338c8a9a5SSteve French ksmbd_debug(SMB, "file does not exist, so creating\n"); 253438c8a9a5SSteve French if (is_dir == true) { 253538c8a9a5SSteve French ksmbd_debug(SMB, "creating directory\n"); 253638c8a9a5SSteve French 253738c8a9a5SSteve French mode = share_config_directory_mode(share, posix_mode); 253838c8a9a5SSteve French rc = ksmbd_vfs_mkdir(work, name, mode); 253938c8a9a5SSteve French if (rc) 254038c8a9a5SSteve French return rc; 254138c8a9a5SSteve French } else { 254238c8a9a5SSteve French ksmbd_debug(SMB, "creating regular file\n"); 254338c8a9a5SSteve French 254438c8a9a5SSteve French mode = share_config_create_mode(share, posix_mode); 254538c8a9a5SSteve French rc = ksmbd_vfs_create(work, name, mode); 254638c8a9a5SSteve French if (rc) 254738c8a9a5SSteve French return rc; 254838c8a9a5SSteve French } 254938c8a9a5SSteve French 25502b57a432SNamjae Jeon rc = ksmbd_vfs_kern_path_locked(work, name, 0, parent_path, path, 0); 255138c8a9a5SSteve French if (rc) { 255238c8a9a5SSteve French pr_err("cannot get linux path (%s), err = %d\n", 255338c8a9a5SSteve French name, rc); 255438c8a9a5SSteve French return rc; 255538c8a9a5SSteve French } 255638c8a9a5SSteve French return 0; 255738c8a9a5SSteve French } 255838c8a9a5SSteve French 255938c8a9a5SSteve French static int smb2_create_sd_buffer(struct ksmbd_work *work, 256038c8a9a5SSteve French struct smb2_create_req *req, 256138c8a9a5SSteve French const struct path *path) 256238c8a9a5SSteve French { 256338c8a9a5SSteve French struct create_context *context; 256438c8a9a5SSteve French struct create_sd_buf_req *sd_buf; 256538c8a9a5SSteve French 256638c8a9a5SSteve French if (!req->CreateContextsOffset) 256738c8a9a5SSteve French return -ENOENT; 256838c8a9a5SSteve French 256938c8a9a5SSteve French /* Parse SD BUFFER create contexts */ 257038c8a9a5SSteve French context = smb2_find_context_vals(req, SMB2_CREATE_SD_BUFFER, 4); 257138c8a9a5SSteve French if (!context) 257238c8a9a5SSteve French return -ENOENT; 257338c8a9a5SSteve French else if (IS_ERR(context)) 257438c8a9a5SSteve French return PTR_ERR(context); 257538c8a9a5SSteve French 257638c8a9a5SSteve French ksmbd_debug(SMB, 257738c8a9a5SSteve French "Set ACLs using SMB2_CREATE_SD_BUFFER context\n"); 257838c8a9a5SSteve French sd_buf = (struct create_sd_buf_req *)context; 257938c8a9a5SSteve French if (le16_to_cpu(context->DataOffset) + 258038c8a9a5SSteve French le32_to_cpu(context->DataLength) < 258138c8a9a5SSteve French sizeof(struct create_sd_buf_req)) 258238c8a9a5SSteve French return -EINVAL; 258338c8a9a5SSteve French return set_info_sec(work->conn, work->tcon, path, &sd_buf->ntsd, 258438c8a9a5SSteve French le32_to_cpu(sd_buf->ccontext.DataLength), true); 258538c8a9a5SSteve French } 258638c8a9a5SSteve French 258738c8a9a5SSteve French static void ksmbd_acls_fattr(struct smb_fattr *fattr, 258838c8a9a5SSteve French struct mnt_idmap *idmap, 258938c8a9a5SSteve French struct inode *inode) 259038c8a9a5SSteve French { 259138c8a9a5SSteve French vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode); 259238c8a9a5SSteve French vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode); 259338c8a9a5SSteve French 259438c8a9a5SSteve French fattr->cf_uid = vfsuid_into_kuid(vfsuid); 259538c8a9a5SSteve French fattr->cf_gid = vfsgid_into_kgid(vfsgid); 259638c8a9a5SSteve French fattr->cf_mode = inode->i_mode; 259738c8a9a5SSteve French fattr->cf_acls = NULL; 259838c8a9a5SSteve French fattr->cf_dacls = NULL; 259938c8a9a5SSteve French 260038c8a9a5SSteve French if (IS_ENABLED(CONFIG_FS_POSIX_ACL)) { 260138c8a9a5SSteve French fattr->cf_acls = get_inode_acl(inode, ACL_TYPE_ACCESS); 260238c8a9a5SSteve French if (S_ISDIR(inode->i_mode)) 260338c8a9a5SSteve French fattr->cf_dacls = get_inode_acl(inode, ACL_TYPE_DEFAULT); 260438c8a9a5SSteve French } 260538c8a9a5SSteve French } 260638c8a9a5SSteve French 260738c8a9a5SSteve French /** 260838c8a9a5SSteve French * smb2_open() - handler for smb file open request 260938c8a9a5SSteve French * @work: smb work containing request buffer 261038c8a9a5SSteve French * 261138c8a9a5SSteve French * Return: 0 on success, otherwise error 261238c8a9a5SSteve French */ 261338c8a9a5SSteve French int smb2_open(struct ksmbd_work *work) 261438c8a9a5SSteve French { 261538c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 261638c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 261738c8a9a5SSteve French struct ksmbd_tree_connect *tcon = work->tcon; 261838c8a9a5SSteve French struct smb2_create_req *req; 261938c8a9a5SSteve French struct smb2_create_rsp *rsp; 26202b57a432SNamjae Jeon struct path path, parent_path; 262138c8a9a5SSteve French struct ksmbd_share_config *share = tcon->share_conf; 262238c8a9a5SSteve French struct ksmbd_file *fp = NULL; 262338c8a9a5SSteve French struct file *filp = NULL; 262438c8a9a5SSteve French struct mnt_idmap *idmap = NULL; 262538c8a9a5SSteve French struct kstat stat; 262638c8a9a5SSteve French struct create_context *context; 262738c8a9a5SSteve French struct lease_ctx_info *lc = NULL; 262838c8a9a5SSteve French struct create_ea_buf_req *ea_buf = NULL; 262938c8a9a5SSteve French struct oplock_info *opinfo; 263038c8a9a5SSteve French __le32 *next_ptr = NULL; 263138c8a9a5SSteve French int req_op_level = 0, open_flags = 0, may_flags = 0, file_info = 0; 263238c8a9a5SSteve French int rc = 0; 263338c8a9a5SSteve French int contxt_cnt = 0, query_disk_id = 0; 263438c8a9a5SSteve French int maximal_access_ctxt = 0, posix_ctxt = 0; 263538c8a9a5SSteve French int s_type = 0; 263638c8a9a5SSteve French int next_off = 0; 263738c8a9a5SSteve French char *name = NULL; 263838c8a9a5SSteve French char *stream_name = NULL; 263938c8a9a5SSteve French bool file_present = false, created = false, already_permitted = false; 264038c8a9a5SSteve French int share_ret, need_truncate = 0; 264138c8a9a5SSteve French u64 time; 264238c8a9a5SSteve French umode_t posix_mode = 0; 264338c8a9a5SSteve French __le32 daccess, maximal_access = 0; 2644e2b76ab8SNamjae Jeon int iov_len = 0; 264538c8a9a5SSteve French 264638c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 264738c8a9a5SSteve French 264838c8a9a5SSteve French if (req->hdr.NextCommand && !work->next_smb2_rcv_hdr_off && 264938c8a9a5SSteve French (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS)) { 265038c8a9a5SSteve French ksmbd_debug(SMB, "invalid flag in chained command\n"); 265138c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 265238c8a9a5SSteve French smb2_set_err_rsp(work); 265338c8a9a5SSteve French return -EINVAL; 265438c8a9a5SSteve French } 265538c8a9a5SSteve French 265638c8a9a5SSteve French if (test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) { 265738c8a9a5SSteve French ksmbd_debug(SMB, "IPC pipe create request\n"); 265838c8a9a5SSteve French return create_smb2_pipe(work); 265938c8a9a5SSteve French } 266038c8a9a5SSteve French 266138c8a9a5SSteve French if (req->NameLength) { 266238c8a9a5SSteve French if ((req->CreateOptions & FILE_DIRECTORY_FILE_LE) && 266338c8a9a5SSteve French *(char *)req->Buffer == '\\') { 266438c8a9a5SSteve French pr_err("not allow directory name included leading slash\n"); 266538c8a9a5SSteve French rc = -EINVAL; 266638c8a9a5SSteve French goto err_out1; 266738c8a9a5SSteve French } 266838c8a9a5SSteve French 266938c8a9a5SSteve French name = smb2_get_name(req->Buffer, 267038c8a9a5SSteve French le16_to_cpu(req->NameLength), 267138c8a9a5SSteve French work->conn->local_nls); 267238c8a9a5SSteve French if (IS_ERR(name)) { 267338c8a9a5SSteve French rc = PTR_ERR(name); 267438c8a9a5SSteve French if (rc != -ENOMEM) 267538c8a9a5SSteve French rc = -ENOENT; 267638c8a9a5SSteve French name = NULL; 267738c8a9a5SSteve French goto err_out1; 267838c8a9a5SSteve French } 267938c8a9a5SSteve French 268038c8a9a5SSteve French ksmbd_debug(SMB, "converted name = %s\n", name); 268138c8a9a5SSteve French if (strchr(name, ':')) { 268238c8a9a5SSteve French if (!test_share_config_flag(work->tcon->share_conf, 268338c8a9a5SSteve French KSMBD_SHARE_FLAG_STREAMS)) { 268438c8a9a5SSteve French rc = -EBADF; 268538c8a9a5SSteve French goto err_out1; 268638c8a9a5SSteve French } 268738c8a9a5SSteve French rc = parse_stream_name(name, &stream_name, &s_type); 268838c8a9a5SSteve French if (rc < 0) 268938c8a9a5SSteve French goto err_out1; 269038c8a9a5SSteve French } 269138c8a9a5SSteve French 269238c8a9a5SSteve French rc = ksmbd_validate_filename(name); 269338c8a9a5SSteve French if (rc < 0) 269438c8a9a5SSteve French goto err_out1; 269538c8a9a5SSteve French 269638c8a9a5SSteve French if (ksmbd_share_veto_filename(share, name)) { 269738c8a9a5SSteve French rc = -ENOENT; 269838c8a9a5SSteve French ksmbd_debug(SMB, "Reject open(), vetoed file: %s\n", 269938c8a9a5SSteve French name); 270038c8a9a5SSteve French goto err_out1; 270138c8a9a5SSteve French } 270238c8a9a5SSteve French } else { 270338c8a9a5SSteve French name = kstrdup("", GFP_KERNEL); 270438c8a9a5SSteve French if (!name) { 270538c8a9a5SSteve French rc = -ENOMEM; 270638c8a9a5SSteve French goto err_out1; 270738c8a9a5SSteve French } 270838c8a9a5SSteve French } 270938c8a9a5SSteve French 271038c8a9a5SSteve French req_op_level = req->RequestedOplockLevel; 271138c8a9a5SSteve French if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) 271238c8a9a5SSteve French lc = parse_lease_state(req); 271338c8a9a5SSteve French 271438c8a9a5SSteve French if (le32_to_cpu(req->ImpersonationLevel) > le32_to_cpu(IL_DELEGATE)) { 271538c8a9a5SSteve French pr_err("Invalid impersonationlevel : 0x%x\n", 271638c8a9a5SSteve French le32_to_cpu(req->ImpersonationLevel)); 271738c8a9a5SSteve French rc = -EIO; 271838c8a9a5SSteve French rsp->hdr.Status = STATUS_BAD_IMPERSONATION_LEVEL; 271938c8a9a5SSteve French goto err_out1; 272038c8a9a5SSteve French } 272138c8a9a5SSteve French 272238c8a9a5SSteve French if (req->CreateOptions && !(req->CreateOptions & CREATE_OPTIONS_MASK_LE)) { 272338c8a9a5SSteve French pr_err("Invalid create options : 0x%x\n", 272438c8a9a5SSteve French le32_to_cpu(req->CreateOptions)); 272538c8a9a5SSteve French rc = -EINVAL; 272638c8a9a5SSteve French goto err_out1; 272738c8a9a5SSteve French } else { 272838c8a9a5SSteve French if (req->CreateOptions & FILE_SEQUENTIAL_ONLY_LE && 272938c8a9a5SSteve French req->CreateOptions & FILE_RANDOM_ACCESS_LE) 273038c8a9a5SSteve French req->CreateOptions = ~(FILE_SEQUENTIAL_ONLY_LE); 273138c8a9a5SSteve French 273238c8a9a5SSteve French if (req->CreateOptions & 273338c8a9a5SSteve French (FILE_OPEN_BY_FILE_ID_LE | CREATE_TREE_CONNECTION | 273438c8a9a5SSteve French FILE_RESERVE_OPFILTER_LE)) { 273538c8a9a5SSteve French rc = -EOPNOTSUPP; 273638c8a9a5SSteve French goto err_out1; 273738c8a9a5SSteve French } 273838c8a9a5SSteve French 273938c8a9a5SSteve French if (req->CreateOptions & FILE_DIRECTORY_FILE_LE) { 274038c8a9a5SSteve French if (req->CreateOptions & FILE_NON_DIRECTORY_FILE_LE) { 274138c8a9a5SSteve French rc = -EINVAL; 274238c8a9a5SSteve French goto err_out1; 274338c8a9a5SSteve French } else if (req->CreateOptions & FILE_NO_COMPRESSION_LE) { 274438c8a9a5SSteve French req->CreateOptions = ~(FILE_NO_COMPRESSION_LE); 274538c8a9a5SSteve French } 274638c8a9a5SSteve French } 274738c8a9a5SSteve French } 274838c8a9a5SSteve French 274938c8a9a5SSteve French if (le32_to_cpu(req->CreateDisposition) > 275038c8a9a5SSteve French le32_to_cpu(FILE_OVERWRITE_IF_LE)) { 275138c8a9a5SSteve French pr_err("Invalid create disposition : 0x%x\n", 275238c8a9a5SSteve French le32_to_cpu(req->CreateDisposition)); 275338c8a9a5SSteve French rc = -EINVAL; 275438c8a9a5SSteve French goto err_out1; 275538c8a9a5SSteve French } 275638c8a9a5SSteve French 275738c8a9a5SSteve French if (!(req->DesiredAccess & DESIRED_ACCESS_MASK)) { 275838c8a9a5SSteve French pr_err("Invalid desired access : 0x%x\n", 275938c8a9a5SSteve French le32_to_cpu(req->DesiredAccess)); 276038c8a9a5SSteve French rc = -EACCES; 276138c8a9a5SSteve French goto err_out1; 276238c8a9a5SSteve French } 276338c8a9a5SSteve French 276438c8a9a5SSteve French if (req->FileAttributes && !(req->FileAttributes & FILE_ATTRIBUTE_MASK_LE)) { 276538c8a9a5SSteve French pr_err("Invalid file attribute : 0x%x\n", 276638c8a9a5SSteve French le32_to_cpu(req->FileAttributes)); 276738c8a9a5SSteve French rc = -EINVAL; 276838c8a9a5SSteve French goto err_out1; 276938c8a9a5SSteve French } 277038c8a9a5SSteve French 277138c8a9a5SSteve French if (req->CreateContextsOffset) { 277238c8a9a5SSteve French /* Parse non-durable handle create contexts */ 277338c8a9a5SSteve French context = smb2_find_context_vals(req, SMB2_CREATE_EA_BUFFER, 4); 277438c8a9a5SSteve French if (IS_ERR(context)) { 277538c8a9a5SSteve French rc = PTR_ERR(context); 277638c8a9a5SSteve French goto err_out1; 277738c8a9a5SSteve French } else if (context) { 277838c8a9a5SSteve French ea_buf = (struct create_ea_buf_req *)context; 277938c8a9a5SSteve French if (le16_to_cpu(context->DataOffset) + 278038c8a9a5SSteve French le32_to_cpu(context->DataLength) < 278138c8a9a5SSteve French sizeof(struct create_ea_buf_req)) { 278238c8a9a5SSteve French rc = -EINVAL; 278338c8a9a5SSteve French goto err_out1; 278438c8a9a5SSteve French } 278538c8a9a5SSteve French if (req->CreateOptions & FILE_NO_EA_KNOWLEDGE_LE) { 278638c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 278738c8a9a5SSteve French rc = -EACCES; 278838c8a9a5SSteve French goto err_out1; 278938c8a9a5SSteve French } 279038c8a9a5SSteve French } 279138c8a9a5SSteve French 279238c8a9a5SSteve French context = smb2_find_context_vals(req, 279338c8a9a5SSteve French SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST, 4); 279438c8a9a5SSteve French if (IS_ERR(context)) { 279538c8a9a5SSteve French rc = PTR_ERR(context); 279638c8a9a5SSteve French goto err_out1; 279738c8a9a5SSteve French } else if (context) { 279838c8a9a5SSteve French ksmbd_debug(SMB, 279938c8a9a5SSteve French "get query maximal access context\n"); 280038c8a9a5SSteve French maximal_access_ctxt = 1; 280138c8a9a5SSteve French } 280238c8a9a5SSteve French 280338c8a9a5SSteve French context = smb2_find_context_vals(req, 280438c8a9a5SSteve French SMB2_CREATE_TIMEWARP_REQUEST, 4); 280538c8a9a5SSteve French if (IS_ERR(context)) { 280638c8a9a5SSteve French rc = PTR_ERR(context); 280738c8a9a5SSteve French goto err_out1; 280838c8a9a5SSteve French } else if (context) { 280938c8a9a5SSteve French ksmbd_debug(SMB, "get timewarp context\n"); 281038c8a9a5SSteve French rc = -EBADF; 281138c8a9a5SSteve French goto err_out1; 281238c8a9a5SSteve French } 281338c8a9a5SSteve French 281438c8a9a5SSteve French if (tcon->posix_extensions) { 281538c8a9a5SSteve French context = smb2_find_context_vals(req, 281638c8a9a5SSteve French SMB2_CREATE_TAG_POSIX, 16); 281738c8a9a5SSteve French if (IS_ERR(context)) { 281838c8a9a5SSteve French rc = PTR_ERR(context); 281938c8a9a5SSteve French goto err_out1; 282038c8a9a5SSteve French } else if (context) { 282138c8a9a5SSteve French struct create_posix *posix = 282238c8a9a5SSteve French (struct create_posix *)context; 282338c8a9a5SSteve French if (le16_to_cpu(context->DataOffset) + 282438c8a9a5SSteve French le32_to_cpu(context->DataLength) < 282538c8a9a5SSteve French sizeof(struct create_posix) - 4) { 282638c8a9a5SSteve French rc = -EINVAL; 282738c8a9a5SSteve French goto err_out1; 282838c8a9a5SSteve French } 282938c8a9a5SSteve French ksmbd_debug(SMB, "get posix context\n"); 283038c8a9a5SSteve French 283138c8a9a5SSteve French posix_mode = le32_to_cpu(posix->Mode); 283238c8a9a5SSteve French posix_ctxt = 1; 283338c8a9a5SSteve French } 283438c8a9a5SSteve French } 283538c8a9a5SSteve French } 283638c8a9a5SSteve French 283738c8a9a5SSteve French if (ksmbd_override_fsids(work)) { 283838c8a9a5SSteve French rc = -ENOMEM; 283938c8a9a5SSteve French goto err_out1; 284038c8a9a5SSteve French } 284138c8a9a5SSteve French 28422b57a432SNamjae Jeon rc = ksmbd_vfs_kern_path_locked(work, name, LOOKUP_NO_SYMLINKS, 28432b57a432SNamjae Jeon &parent_path, &path, 1); 284438c8a9a5SSteve French if (!rc) { 284538c8a9a5SSteve French file_present = true; 284638c8a9a5SSteve French 284738c8a9a5SSteve French if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE) { 284838c8a9a5SSteve French /* 284938c8a9a5SSteve French * If file exists with under flags, return access 285038c8a9a5SSteve French * denied error. 285138c8a9a5SSteve French */ 285238c8a9a5SSteve French if (req->CreateDisposition == FILE_OVERWRITE_IF_LE || 285338c8a9a5SSteve French req->CreateDisposition == FILE_OPEN_IF_LE) { 285438c8a9a5SSteve French rc = -EACCES; 285538c8a9a5SSteve French goto err_out; 285638c8a9a5SSteve French } 285738c8a9a5SSteve French 285838c8a9a5SSteve French if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 285938c8a9a5SSteve French ksmbd_debug(SMB, 286038c8a9a5SSteve French "User does not have write permission\n"); 286138c8a9a5SSteve French rc = -EACCES; 286238c8a9a5SSteve French goto err_out; 286338c8a9a5SSteve French } 286438c8a9a5SSteve French } else if (d_is_symlink(path.dentry)) { 286538c8a9a5SSteve French rc = -EACCES; 286638c8a9a5SSteve French goto err_out; 286738c8a9a5SSteve French } 286838c8a9a5SSteve French 286938c8a9a5SSteve French file_present = true; 287038c8a9a5SSteve French idmap = mnt_idmap(path.mnt); 287138c8a9a5SSteve French } else { 287238c8a9a5SSteve French if (rc != -ENOENT) 287338c8a9a5SSteve French goto err_out; 287438c8a9a5SSteve French ksmbd_debug(SMB, "can not get linux path for %s, rc = %d\n", 287538c8a9a5SSteve French name, rc); 287638c8a9a5SSteve French rc = 0; 287738c8a9a5SSteve French } 287838c8a9a5SSteve French 287938c8a9a5SSteve French if (stream_name) { 288038c8a9a5SSteve French if (req->CreateOptions & FILE_DIRECTORY_FILE_LE) { 288138c8a9a5SSteve French if (s_type == DATA_STREAM) { 288238c8a9a5SSteve French rc = -EIO; 288338c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_A_DIRECTORY; 288438c8a9a5SSteve French } 288538c8a9a5SSteve French } else { 288638c8a9a5SSteve French if (file_present && S_ISDIR(d_inode(path.dentry)->i_mode) && 288738c8a9a5SSteve French s_type == DATA_STREAM) { 288838c8a9a5SSteve French rc = -EIO; 288938c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY; 289038c8a9a5SSteve French } 289138c8a9a5SSteve French } 289238c8a9a5SSteve French 289338c8a9a5SSteve French if (req->CreateOptions & FILE_DIRECTORY_FILE_LE && 289438c8a9a5SSteve French req->FileAttributes & FILE_ATTRIBUTE_NORMAL_LE) { 289538c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_A_DIRECTORY; 289638c8a9a5SSteve French rc = -EIO; 289738c8a9a5SSteve French } 289838c8a9a5SSteve French 289938c8a9a5SSteve French if (rc < 0) 290038c8a9a5SSteve French goto err_out; 290138c8a9a5SSteve French } 290238c8a9a5SSteve French 290338c8a9a5SSteve French if (file_present && req->CreateOptions & FILE_NON_DIRECTORY_FILE_LE && 290438c8a9a5SSteve French S_ISDIR(d_inode(path.dentry)->i_mode) && 290538c8a9a5SSteve French !(req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) { 290638c8a9a5SSteve French ksmbd_debug(SMB, "open() argument is a directory: %s, %x\n", 290738c8a9a5SSteve French name, req->CreateOptions); 290838c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY; 290938c8a9a5SSteve French rc = -EIO; 291038c8a9a5SSteve French goto err_out; 291138c8a9a5SSteve French } 291238c8a9a5SSteve French 291338c8a9a5SSteve French if (file_present && (req->CreateOptions & FILE_DIRECTORY_FILE_LE) && 291438c8a9a5SSteve French !(req->CreateDisposition == FILE_CREATE_LE) && 291538c8a9a5SSteve French !S_ISDIR(d_inode(path.dentry)->i_mode)) { 291638c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_A_DIRECTORY; 291738c8a9a5SSteve French rc = -EIO; 291838c8a9a5SSteve French goto err_out; 291938c8a9a5SSteve French } 292038c8a9a5SSteve French 292138c8a9a5SSteve French if (!stream_name && file_present && 292238c8a9a5SSteve French req->CreateDisposition == FILE_CREATE_LE) { 292338c8a9a5SSteve French rc = -EEXIST; 292438c8a9a5SSteve French goto err_out; 292538c8a9a5SSteve French } 292638c8a9a5SSteve French 292738c8a9a5SSteve French daccess = smb_map_generic_desired_access(req->DesiredAccess); 292838c8a9a5SSteve French 292938c8a9a5SSteve French if (file_present && !(req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) { 293038c8a9a5SSteve French rc = smb_check_perm_dacl(conn, &path, &daccess, 293138c8a9a5SSteve French sess->user->uid); 293238c8a9a5SSteve French if (rc) 293338c8a9a5SSteve French goto err_out; 293438c8a9a5SSteve French } 293538c8a9a5SSteve French 293638c8a9a5SSteve French if (daccess & FILE_MAXIMAL_ACCESS_LE) { 293738c8a9a5SSteve French if (!file_present) { 293838c8a9a5SSteve French daccess = cpu_to_le32(GENERIC_ALL_FLAGS); 293938c8a9a5SSteve French } else { 2940ccb5889aSLu Hongfei ksmbd_vfs_query_maximal_access(idmap, 294138c8a9a5SSteve French path.dentry, 294238c8a9a5SSteve French &daccess); 294338c8a9a5SSteve French already_permitted = true; 294438c8a9a5SSteve French } 294538c8a9a5SSteve French maximal_access = daccess; 294638c8a9a5SSteve French } 294738c8a9a5SSteve French 294838c8a9a5SSteve French open_flags = smb2_create_open_flags(file_present, daccess, 294938c8a9a5SSteve French req->CreateDisposition, 295038c8a9a5SSteve French &may_flags); 295138c8a9a5SSteve French 295238c8a9a5SSteve French if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 295338c8a9a5SSteve French if (open_flags & O_CREAT) { 295438c8a9a5SSteve French ksmbd_debug(SMB, 295538c8a9a5SSteve French "User does not have write permission\n"); 295638c8a9a5SSteve French rc = -EACCES; 295738c8a9a5SSteve French goto err_out; 295838c8a9a5SSteve French } 295938c8a9a5SSteve French } 296038c8a9a5SSteve French 296138c8a9a5SSteve French /*create file if not present */ 296238c8a9a5SSteve French if (!file_present) { 29632b57a432SNamjae Jeon rc = smb2_creat(work, &parent_path, &path, name, open_flags, 29642b57a432SNamjae Jeon posix_mode, 296538c8a9a5SSteve French req->CreateOptions & FILE_DIRECTORY_FILE_LE); 296638c8a9a5SSteve French if (rc) { 296738c8a9a5SSteve French if (rc == -ENOENT) { 296838c8a9a5SSteve French rc = -EIO; 296938c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_PATH_NOT_FOUND; 297038c8a9a5SSteve French } 297138c8a9a5SSteve French goto err_out; 297238c8a9a5SSteve French } 297338c8a9a5SSteve French 297438c8a9a5SSteve French created = true; 297538c8a9a5SSteve French idmap = mnt_idmap(path.mnt); 297638c8a9a5SSteve French if (ea_buf) { 297738c8a9a5SSteve French if (le32_to_cpu(ea_buf->ccontext.DataLength) < 297838c8a9a5SSteve French sizeof(struct smb2_ea_info)) { 297938c8a9a5SSteve French rc = -EINVAL; 298038c8a9a5SSteve French goto err_out; 298138c8a9a5SSteve French } 298238c8a9a5SSteve French 298338c8a9a5SSteve French rc = smb2_set_ea(&ea_buf->ea, 298438c8a9a5SSteve French le32_to_cpu(ea_buf->ccontext.DataLength), 298538c8a9a5SSteve French &path); 298638c8a9a5SSteve French if (rc == -EOPNOTSUPP) 298738c8a9a5SSteve French rc = 0; 298838c8a9a5SSteve French else if (rc) 298938c8a9a5SSteve French goto err_out; 299038c8a9a5SSteve French } 299138c8a9a5SSteve French } else if (!already_permitted) { 299238c8a9a5SSteve French /* FILE_READ_ATTRIBUTE is allowed without inode_permission, 299338c8a9a5SSteve French * because execute(search) permission on a parent directory, 299438c8a9a5SSteve French * is already granted. 299538c8a9a5SSteve French */ 299638c8a9a5SSteve French if (daccess & ~(FILE_READ_ATTRIBUTES_LE | FILE_READ_CONTROL_LE)) { 299738c8a9a5SSteve French rc = inode_permission(idmap, 299838c8a9a5SSteve French d_inode(path.dentry), 299938c8a9a5SSteve French may_flags); 300038c8a9a5SSteve French if (rc) 300138c8a9a5SSteve French goto err_out; 300238c8a9a5SSteve French 300338c8a9a5SSteve French if ((daccess & FILE_DELETE_LE) || 300438c8a9a5SSteve French (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) { 300538c8a9a5SSteve French rc = inode_permission(idmap, 300638c8a9a5SSteve French d_inode(path.dentry->d_parent), 300738c8a9a5SSteve French MAY_EXEC | MAY_WRITE); 300838c8a9a5SSteve French if (rc) 300938c8a9a5SSteve French goto err_out; 301038c8a9a5SSteve French } 301138c8a9a5SSteve French } 301238c8a9a5SSteve French } 301338c8a9a5SSteve French 301438c8a9a5SSteve French rc = ksmbd_query_inode_status(d_inode(path.dentry->d_parent)); 301538c8a9a5SSteve French if (rc == KSMBD_INODE_STATUS_PENDING_DELETE) { 301638c8a9a5SSteve French rc = -EBUSY; 301738c8a9a5SSteve French goto err_out; 301838c8a9a5SSteve French } 301938c8a9a5SSteve French 302038c8a9a5SSteve French rc = 0; 302138c8a9a5SSteve French filp = dentry_open(&path, open_flags, current_cred()); 302238c8a9a5SSteve French if (IS_ERR(filp)) { 302338c8a9a5SSteve French rc = PTR_ERR(filp); 302438c8a9a5SSteve French pr_err("dentry open for dir failed, rc %d\n", rc); 302538c8a9a5SSteve French goto err_out; 302638c8a9a5SSteve French } 302738c8a9a5SSteve French 302838c8a9a5SSteve French if (file_present) { 302938c8a9a5SSteve French if (!(open_flags & O_TRUNC)) 303038c8a9a5SSteve French file_info = FILE_OPENED; 303138c8a9a5SSteve French else 303238c8a9a5SSteve French file_info = FILE_OVERWRITTEN; 303338c8a9a5SSteve French 303438c8a9a5SSteve French if ((req->CreateDisposition & FILE_CREATE_MASK_LE) == 303538c8a9a5SSteve French FILE_SUPERSEDE_LE) 303638c8a9a5SSteve French file_info = FILE_SUPERSEDED; 303738c8a9a5SSteve French } else if (open_flags & O_CREAT) { 303838c8a9a5SSteve French file_info = FILE_CREATED; 303938c8a9a5SSteve French } 304038c8a9a5SSteve French 304138c8a9a5SSteve French ksmbd_vfs_set_fadvise(filp, req->CreateOptions); 304238c8a9a5SSteve French 304338c8a9a5SSteve French /* Obtain Volatile-ID */ 304438c8a9a5SSteve French fp = ksmbd_open_fd(work, filp); 304538c8a9a5SSteve French if (IS_ERR(fp)) { 304638c8a9a5SSteve French fput(filp); 304738c8a9a5SSteve French rc = PTR_ERR(fp); 304838c8a9a5SSteve French fp = NULL; 304938c8a9a5SSteve French goto err_out; 305038c8a9a5SSteve French } 305138c8a9a5SSteve French 305238c8a9a5SSteve French /* Get Persistent-ID */ 305338c8a9a5SSteve French ksmbd_open_durable_fd(fp); 305438c8a9a5SSteve French if (!has_file_id(fp->persistent_id)) { 305538c8a9a5SSteve French rc = -ENOMEM; 305638c8a9a5SSteve French goto err_out; 305738c8a9a5SSteve French } 305838c8a9a5SSteve French 305938c8a9a5SSteve French fp->cdoption = req->CreateDisposition; 306038c8a9a5SSteve French fp->daccess = daccess; 306138c8a9a5SSteve French fp->saccess = req->ShareAccess; 306238c8a9a5SSteve French fp->coption = req->CreateOptions; 306338c8a9a5SSteve French 306438c8a9a5SSteve French /* Set default windows and posix acls if creating new file */ 306538c8a9a5SSteve French if (created) { 306638c8a9a5SSteve French int posix_acl_rc; 306738c8a9a5SSteve French struct inode *inode = d_inode(path.dentry); 306838c8a9a5SSteve French 306938c8a9a5SSteve French posix_acl_rc = ksmbd_vfs_inherit_posix_acl(idmap, 307040b268d3SNamjae Jeon &path, 307138c8a9a5SSteve French d_inode(path.dentry->d_parent)); 307238c8a9a5SSteve French if (posix_acl_rc) 307338c8a9a5SSteve French ksmbd_debug(SMB, "inherit posix acl failed : %d\n", posix_acl_rc); 307438c8a9a5SSteve French 307538c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 307638c8a9a5SSteve French KSMBD_SHARE_FLAG_ACL_XATTR)) { 307738c8a9a5SSteve French rc = smb_inherit_dacl(conn, &path, sess->user->uid, 307838c8a9a5SSteve French sess->user->gid); 307938c8a9a5SSteve French } 308038c8a9a5SSteve French 308138c8a9a5SSteve French if (rc) { 308238c8a9a5SSteve French rc = smb2_create_sd_buffer(work, req, &path); 308338c8a9a5SSteve French if (rc) { 308438c8a9a5SSteve French if (posix_acl_rc) 308538c8a9a5SSteve French ksmbd_vfs_set_init_posix_acl(idmap, 308640b268d3SNamjae Jeon &path); 308738c8a9a5SSteve French 308838c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 308938c8a9a5SSteve French KSMBD_SHARE_FLAG_ACL_XATTR)) { 309038c8a9a5SSteve French struct smb_fattr fattr; 309138c8a9a5SSteve French struct smb_ntsd *pntsd; 309238c8a9a5SSteve French int pntsd_size, ace_num = 0; 309338c8a9a5SSteve French 309438c8a9a5SSteve French ksmbd_acls_fattr(&fattr, idmap, inode); 309538c8a9a5SSteve French if (fattr.cf_acls) 309638c8a9a5SSteve French ace_num = fattr.cf_acls->a_count; 309738c8a9a5SSteve French if (fattr.cf_dacls) 309838c8a9a5SSteve French ace_num += fattr.cf_dacls->a_count; 309938c8a9a5SSteve French 310038c8a9a5SSteve French pntsd = kmalloc(sizeof(struct smb_ntsd) + 310138c8a9a5SSteve French sizeof(struct smb_sid) * 3 + 310238c8a9a5SSteve French sizeof(struct smb_acl) + 310338c8a9a5SSteve French sizeof(struct smb_ace) * ace_num * 2, 310438c8a9a5SSteve French GFP_KERNEL); 310538c8a9a5SSteve French if (!pntsd) { 310638c8a9a5SSteve French posix_acl_release(fattr.cf_acls); 310738c8a9a5SSteve French posix_acl_release(fattr.cf_dacls); 310838c8a9a5SSteve French goto err_out; 310938c8a9a5SSteve French } 311038c8a9a5SSteve French 311138c8a9a5SSteve French rc = build_sec_desc(idmap, 311238c8a9a5SSteve French pntsd, NULL, 0, 311338c8a9a5SSteve French OWNER_SECINFO | 311438c8a9a5SSteve French GROUP_SECINFO | 311538c8a9a5SSteve French DACL_SECINFO, 311638c8a9a5SSteve French &pntsd_size, &fattr); 311738c8a9a5SSteve French posix_acl_release(fattr.cf_acls); 311838c8a9a5SSteve French posix_acl_release(fattr.cf_dacls); 311938c8a9a5SSteve French if (rc) { 312038c8a9a5SSteve French kfree(pntsd); 312138c8a9a5SSteve French goto err_out; 312238c8a9a5SSteve French } 312338c8a9a5SSteve French 312438c8a9a5SSteve French rc = ksmbd_vfs_set_sd_xattr(conn, 312538c8a9a5SSteve French idmap, 312640b268d3SNamjae Jeon &path, 312738c8a9a5SSteve French pntsd, 312838c8a9a5SSteve French pntsd_size); 312938c8a9a5SSteve French kfree(pntsd); 313038c8a9a5SSteve French if (rc) 313138c8a9a5SSteve French pr_err("failed to store ntacl in xattr : %d\n", 313238c8a9a5SSteve French rc); 313338c8a9a5SSteve French } 313438c8a9a5SSteve French } 313538c8a9a5SSteve French } 313638c8a9a5SSteve French rc = 0; 313738c8a9a5SSteve French } 313838c8a9a5SSteve French 313938c8a9a5SSteve French if (stream_name) { 314038c8a9a5SSteve French rc = smb2_set_stream_name_xattr(&path, 314138c8a9a5SSteve French fp, 314238c8a9a5SSteve French stream_name, 314338c8a9a5SSteve French s_type); 314438c8a9a5SSteve French if (rc) 314538c8a9a5SSteve French goto err_out; 314638c8a9a5SSteve French file_info = FILE_CREATED; 314738c8a9a5SSteve French } 314838c8a9a5SSteve French 314938c8a9a5SSteve French fp->attrib_only = !(req->DesiredAccess & ~(FILE_READ_ATTRIBUTES_LE | 315038c8a9a5SSteve French FILE_WRITE_ATTRIBUTES_LE | FILE_SYNCHRONIZE_LE)); 315138c8a9a5SSteve French if (!S_ISDIR(file_inode(filp)->i_mode) && open_flags & O_TRUNC && 315238c8a9a5SSteve French !fp->attrib_only && !stream_name) { 315338c8a9a5SSteve French smb_break_all_oplock(work, fp); 315438c8a9a5SSteve French need_truncate = 1; 315538c8a9a5SSteve French } 315638c8a9a5SSteve French 315738c8a9a5SSteve French /* fp should be searchable through ksmbd_inode.m_fp_list 315838c8a9a5SSteve French * after daccess, saccess, attrib_only, and stream are 315938c8a9a5SSteve French * initialized. 316038c8a9a5SSteve French */ 316138c8a9a5SSteve French write_lock(&fp->f_ci->m_lock); 316238c8a9a5SSteve French list_add(&fp->node, &fp->f_ci->m_fp_list); 316338c8a9a5SSteve French write_unlock(&fp->f_ci->m_lock); 316438c8a9a5SSteve French 316538c8a9a5SSteve French /* Check delete pending among previous fp before oplock break */ 316638c8a9a5SSteve French if (ksmbd_inode_pending_delete(fp)) { 316738c8a9a5SSteve French rc = -EBUSY; 316838c8a9a5SSteve French goto err_out; 316938c8a9a5SSteve French } 317038c8a9a5SSteve French 317138c8a9a5SSteve French share_ret = ksmbd_smb_check_shared_mode(fp->filp, fp); 317238c8a9a5SSteve French if (!test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_OPLOCKS) || 317338c8a9a5SSteve French (req_op_level == SMB2_OPLOCK_LEVEL_LEASE && 317438c8a9a5SSteve French !(conn->vals->capabilities & SMB2_GLOBAL_CAP_LEASING))) { 317538c8a9a5SSteve French if (share_ret < 0 && !S_ISDIR(file_inode(fp->filp)->i_mode)) { 317638c8a9a5SSteve French rc = share_ret; 317738c8a9a5SSteve French goto err_out; 317838c8a9a5SSteve French } 317938c8a9a5SSteve French } else { 318038c8a9a5SSteve French if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) { 318138c8a9a5SSteve French req_op_level = smb2_map_lease_to_oplock(lc->req_state); 318238c8a9a5SSteve French ksmbd_debug(SMB, 318338c8a9a5SSteve French "lease req for(%s) req oplock state 0x%x, lease state 0x%x\n", 318438c8a9a5SSteve French name, req_op_level, lc->req_state); 318538c8a9a5SSteve French rc = find_same_lease_key(sess, fp->f_ci, lc); 318638c8a9a5SSteve French if (rc) 318738c8a9a5SSteve French goto err_out; 318838c8a9a5SSteve French } else if (open_flags == O_RDONLY && 318938c8a9a5SSteve French (req_op_level == SMB2_OPLOCK_LEVEL_BATCH || 319038c8a9a5SSteve French req_op_level == SMB2_OPLOCK_LEVEL_EXCLUSIVE)) 319138c8a9a5SSteve French req_op_level = SMB2_OPLOCK_LEVEL_II; 319238c8a9a5SSteve French 319338c8a9a5SSteve French rc = smb_grant_oplock(work, req_op_level, 319438c8a9a5SSteve French fp->persistent_id, fp, 319538c8a9a5SSteve French le32_to_cpu(req->hdr.Id.SyncId.TreeId), 319638c8a9a5SSteve French lc, share_ret); 319738c8a9a5SSteve French if (rc < 0) 319838c8a9a5SSteve French goto err_out; 319938c8a9a5SSteve French } 320038c8a9a5SSteve French 320138c8a9a5SSteve French if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE) 320238c8a9a5SSteve French ksmbd_fd_set_delete_on_close(fp, file_info); 320338c8a9a5SSteve French 320438c8a9a5SSteve French if (need_truncate) { 320538c8a9a5SSteve French rc = smb2_create_truncate(&path); 320638c8a9a5SSteve French if (rc) 320738c8a9a5SSteve French goto err_out; 320838c8a9a5SSteve French } 320938c8a9a5SSteve French 321038c8a9a5SSteve French if (req->CreateContextsOffset) { 321138c8a9a5SSteve French struct create_alloc_size_req *az_req; 321238c8a9a5SSteve French 321338c8a9a5SSteve French az_req = (struct create_alloc_size_req *)smb2_find_context_vals(req, 321438c8a9a5SSteve French SMB2_CREATE_ALLOCATION_SIZE, 4); 321538c8a9a5SSteve French if (IS_ERR(az_req)) { 321638c8a9a5SSteve French rc = PTR_ERR(az_req); 321738c8a9a5SSteve French goto err_out; 321838c8a9a5SSteve French } else if (az_req) { 321938c8a9a5SSteve French loff_t alloc_size; 322038c8a9a5SSteve French int err; 322138c8a9a5SSteve French 322238c8a9a5SSteve French if (le16_to_cpu(az_req->ccontext.DataOffset) + 322338c8a9a5SSteve French le32_to_cpu(az_req->ccontext.DataLength) < 322438c8a9a5SSteve French sizeof(struct create_alloc_size_req)) { 322538c8a9a5SSteve French rc = -EINVAL; 322638c8a9a5SSteve French goto err_out; 322738c8a9a5SSteve French } 322838c8a9a5SSteve French alloc_size = le64_to_cpu(az_req->AllocationSize); 322938c8a9a5SSteve French ksmbd_debug(SMB, 323038c8a9a5SSteve French "request smb2 create allocate size : %llu\n", 323138c8a9a5SSteve French alloc_size); 323238c8a9a5SSteve French smb_break_all_levII_oplock(work, fp, 1); 323338c8a9a5SSteve French err = vfs_fallocate(fp->filp, FALLOC_FL_KEEP_SIZE, 0, 323438c8a9a5SSteve French alloc_size); 323538c8a9a5SSteve French if (err < 0) 323638c8a9a5SSteve French ksmbd_debug(SMB, 323738c8a9a5SSteve French "vfs_fallocate is failed : %d\n", 323838c8a9a5SSteve French err); 323938c8a9a5SSteve French } 324038c8a9a5SSteve French 324138c8a9a5SSteve French context = smb2_find_context_vals(req, SMB2_CREATE_QUERY_ON_DISK_ID, 4); 324238c8a9a5SSteve French if (IS_ERR(context)) { 324338c8a9a5SSteve French rc = PTR_ERR(context); 324438c8a9a5SSteve French goto err_out; 324538c8a9a5SSteve French } else if (context) { 324638c8a9a5SSteve French ksmbd_debug(SMB, "get query on disk id context\n"); 324738c8a9a5SSteve French query_disk_id = 1; 324838c8a9a5SSteve French } 324938c8a9a5SSteve French } 325038c8a9a5SSteve French 325138c8a9a5SSteve French rc = ksmbd_vfs_getattr(&path, &stat); 325238c8a9a5SSteve French if (rc) 325338c8a9a5SSteve French goto err_out; 325438c8a9a5SSteve French 325538c8a9a5SSteve French if (stat.result_mask & STATX_BTIME) 325638c8a9a5SSteve French fp->create_time = ksmbd_UnixTimeToNT(stat.btime); 325738c8a9a5SSteve French else 325838c8a9a5SSteve French fp->create_time = ksmbd_UnixTimeToNT(stat.ctime); 325938c8a9a5SSteve French if (req->FileAttributes || fp->f_ci->m_fattr == 0) 326038c8a9a5SSteve French fp->f_ci->m_fattr = 326138c8a9a5SSteve French cpu_to_le32(smb2_get_dos_mode(&stat, le32_to_cpu(req->FileAttributes))); 326238c8a9a5SSteve French 326338c8a9a5SSteve French if (!created) 326438c8a9a5SSteve French smb2_update_xattrs(tcon, &path, fp); 326538c8a9a5SSteve French else 326638c8a9a5SSteve French smb2_new_xattrs(tcon, &path, fp); 326738c8a9a5SSteve French 326838c8a9a5SSteve French memcpy(fp->client_guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE); 326938c8a9a5SSteve French 327038c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(89); 327138c8a9a5SSteve French rcu_read_lock(); 327238c8a9a5SSteve French opinfo = rcu_dereference(fp->f_opinfo); 327338c8a9a5SSteve French rsp->OplockLevel = opinfo != NULL ? opinfo->level : 0; 327438c8a9a5SSteve French rcu_read_unlock(); 327538c8a9a5SSteve French rsp->Flags = 0; 327638c8a9a5SSteve French rsp->CreateAction = cpu_to_le32(file_info); 327738c8a9a5SSteve French rsp->CreationTime = cpu_to_le64(fp->create_time); 327838c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.atime); 327938c8a9a5SSteve French rsp->LastAccessTime = cpu_to_le64(time); 328038c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.mtime); 328138c8a9a5SSteve French rsp->LastWriteTime = cpu_to_le64(time); 328238c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.ctime); 328338c8a9a5SSteve French rsp->ChangeTime = cpu_to_le64(time); 328438c8a9a5SSteve French rsp->AllocationSize = S_ISDIR(stat.mode) ? 0 : 328538c8a9a5SSteve French cpu_to_le64(stat.blocks << 9); 328638c8a9a5SSteve French rsp->EndofFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); 328738c8a9a5SSteve French rsp->FileAttributes = fp->f_ci->m_fattr; 328838c8a9a5SSteve French 328938c8a9a5SSteve French rsp->Reserved2 = 0; 329038c8a9a5SSteve French 329138c8a9a5SSteve French rsp->PersistentFileId = fp->persistent_id; 329238c8a9a5SSteve French rsp->VolatileFileId = fp->volatile_id; 329338c8a9a5SSteve French 329438c8a9a5SSteve French rsp->CreateContextsOffset = 0; 329538c8a9a5SSteve French rsp->CreateContextsLength = 0; 3296e2b76ab8SNamjae Jeon iov_len = offsetof(struct smb2_create_rsp, Buffer); 329738c8a9a5SSteve French 329838c8a9a5SSteve French /* If lease is request send lease context response */ 329938c8a9a5SSteve French if (opinfo && opinfo->is_lease) { 330038c8a9a5SSteve French struct create_context *lease_ccontext; 330138c8a9a5SSteve French 330238c8a9a5SSteve French ksmbd_debug(SMB, "lease granted on(%s) lease state 0x%x\n", 330338c8a9a5SSteve French name, opinfo->o_lease->state); 330438c8a9a5SSteve French rsp->OplockLevel = SMB2_OPLOCK_LEVEL_LEASE; 330538c8a9a5SSteve French 330638c8a9a5SSteve French lease_ccontext = (struct create_context *)rsp->Buffer; 330738c8a9a5SSteve French contxt_cnt++; 330838c8a9a5SSteve French create_lease_buf(rsp->Buffer, opinfo->o_lease); 330938c8a9a5SSteve French le32_add_cpu(&rsp->CreateContextsLength, 331038c8a9a5SSteve French conn->vals->create_lease_size); 3311e2b76ab8SNamjae Jeon iov_len += conn->vals->create_lease_size; 331238c8a9a5SSteve French next_ptr = &lease_ccontext->Next; 331338c8a9a5SSteve French next_off = conn->vals->create_lease_size; 331438c8a9a5SSteve French } 331538c8a9a5SSteve French 331638c8a9a5SSteve French if (maximal_access_ctxt) { 331738c8a9a5SSteve French struct create_context *mxac_ccontext; 331838c8a9a5SSteve French 331938c8a9a5SSteve French if (maximal_access == 0) 332038c8a9a5SSteve French ksmbd_vfs_query_maximal_access(idmap, 332138c8a9a5SSteve French path.dentry, 332238c8a9a5SSteve French &maximal_access); 332338c8a9a5SSteve French mxac_ccontext = (struct create_context *)(rsp->Buffer + 332438c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength)); 332538c8a9a5SSteve French contxt_cnt++; 332638c8a9a5SSteve French create_mxac_rsp_buf(rsp->Buffer + 332738c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength), 332838c8a9a5SSteve French le32_to_cpu(maximal_access)); 332938c8a9a5SSteve French le32_add_cpu(&rsp->CreateContextsLength, 333038c8a9a5SSteve French conn->vals->create_mxac_size); 3331e2b76ab8SNamjae Jeon iov_len += conn->vals->create_mxac_size; 333238c8a9a5SSteve French if (next_ptr) 333338c8a9a5SSteve French *next_ptr = cpu_to_le32(next_off); 333438c8a9a5SSteve French next_ptr = &mxac_ccontext->Next; 333538c8a9a5SSteve French next_off = conn->vals->create_mxac_size; 333638c8a9a5SSteve French } 333738c8a9a5SSteve French 333838c8a9a5SSteve French if (query_disk_id) { 333938c8a9a5SSteve French struct create_context *disk_id_ccontext; 334038c8a9a5SSteve French 334138c8a9a5SSteve French disk_id_ccontext = (struct create_context *)(rsp->Buffer + 334238c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength)); 334338c8a9a5SSteve French contxt_cnt++; 334438c8a9a5SSteve French create_disk_id_rsp_buf(rsp->Buffer + 334538c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength), 334638c8a9a5SSteve French stat.ino, tcon->id); 334738c8a9a5SSteve French le32_add_cpu(&rsp->CreateContextsLength, 334838c8a9a5SSteve French conn->vals->create_disk_id_size); 3349e2b76ab8SNamjae Jeon iov_len += conn->vals->create_disk_id_size; 335038c8a9a5SSteve French if (next_ptr) 335138c8a9a5SSteve French *next_ptr = cpu_to_le32(next_off); 335238c8a9a5SSteve French next_ptr = &disk_id_ccontext->Next; 335338c8a9a5SSteve French next_off = conn->vals->create_disk_id_size; 335438c8a9a5SSteve French } 335538c8a9a5SSteve French 335638c8a9a5SSteve French if (posix_ctxt) { 335738c8a9a5SSteve French contxt_cnt++; 335838c8a9a5SSteve French create_posix_rsp_buf(rsp->Buffer + 335938c8a9a5SSteve French le32_to_cpu(rsp->CreateContextsLength), 336038c8a9a5SSteve French fp); 336138c8a9a5SSteve French le32_add_cpu(&rsp->CreateContextsLength, 336238c8a9a5SSteve French conn->vals->create_posix_size); 3363e2b76ab8SNamjae Jeon iov_len += conn->vals->create_posix_size; 336438c8a9a5SSteve French if (next_ptr) 336538c8a9a5SSteve French *next_ptr = cpu_to_le32(next_off); 336638c8a9a5SSteve French } 336738c8a9a5SSteve French 336838c8a9a5SSteve French if (contxt_cnt > 0) { 336938c8a9a5SSteve French rsp->CreateContextsOffset = 337038c8a9a5SSteve French cpu_to_le32(offsetof(struct smb2_create_rsp, Buffer)); 337138c8a9a5SSteve French } 337238c8a9a5SSteve French 337338c8a9a5SSteve French err_out: 337438c8a9a5SSteve French if (file_present || created) { 33752b57a432SNamjae Jeon inode_unlock(d_inode(parent_path.dentry)); 33762b57a432SNamjae Jeon path_put(&path); 33772b57a432SNamjae Jeon path_put(&parent_path); 337838c8a9a5SSteve French } 337938c8a9a5SSteve French ksmbd_revert_fsids(work); 338038c8a9a5SSteve French err_out1: 33815a7ee91dSNamjae Jeon if (!rc) { 33825a7ee91dSNamjae Jeon ksmbd_update_fstate(&work->sess->file_table, fp, FP_INITED); 3383e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, iov_len); 33845a7ee91dSNamjae Jeon } 338538c8a9a5SSteve French if (rc) { 338638c8a9a5SSteve French if (rc == -EINVAL) 338738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 338838c8a9a5SSteve French else if (rc == -EOPNOTSUPP) 338938c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_SUPPORTED; 339038c8a9a5SSteve French else if (rc == -EACCES || rc == -ESTALE || rc == -EXDEV) 339138c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 339238c8a9a5SSteve French else if (rc == -ENOENT) 339338c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_INVALID; 339438c8a9a5SSteve French else if (rc == -EPERM) 339538c8a9a5SSteve French rsp->hdr.Status = STATUS_SHARING_VIOLATION; 339638c8a9a5SSteve French else if (rc == -EBUSY) 339738c8a9a5SSteve French rsp->hdr.Status = STATUS_DELETE_PENDING; 339838c8a9a5SSteve French else if (rc == -EBADF) 339938c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND; 340038c8a9a5SSteve French else if (rc == -ENOEXEC) 340138c8a9a5SSteve French rsp->hdr.Status = STATUS_DUPLICATE_OBJECTID; 340238c8a9a5SSteve French else if (rc == -ENXIO) 340338c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_SUCH_DEVICE; 340438c8a9a5SSteve French else if (rc == -EEXIST) 340538c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_COLLISION; 340638c8a9a5SSteve French else if (rc == -EMFILE) 340738c8a9a5SSteve French rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 340838c8a9a5SSteve French if (!rsp->hdr.Status) 340938c8a9a5SSteve French rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; 341038c8a9a5SSteve French 341138c8a9a5SSteve French if (fp) 341238c8a9a5SSteve French ksmbd_fd_put(work, fp); 341338c8a9a5SSteve French smb2_set_err_rsp(work); 341438c8a9a5SSteve French ksmbd_debug(SMB, "Error response: %x\n", rsp->hdr.Status); 341538c8a9a5SSteve French } 341638c8a9a5SSteve French 341738c8a9a5SSteve French kfree(name); 341838c8a9a5SSteve French kfree(lc); 341938c8a9a5SSteve French 342038c8a9a5SSteve French return 0; 342138c8a9a5SSteve French } 342238c8a9a5SSteve French 342338c8a9a5SSteve French static int readdir_info_level_struct_sz(int info_level) 342438c8a9a5SSteve French { 342538c8a9a5SSteve French switch (info_level) { 342638c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 342738c8a9a5SSteve French return sizeof(struct file_full_directory_info); 342838c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 342938c8a9a5SSteve French return sizeof(struct file_both_directory_info); 343038c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 343138c8a9a5SSteve French return sizeof(struct file_directory_info); 343238c8a9a5SSteve French case FILE_NAMES_INFORMATION: 343338c8a9a5SSteve French return sizeof(struct file_names_info); 343438c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 343538c8a9a5SSteve French return sizeof(struct file_id_full_dir_info); 343638c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 343738c8a9a5SSteve French return sizeof(struct file_id_both_directory_info); 343838c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 343938c8a9a5SSteve French return sizeof(struct smb2_posix_info); 344038c8a9a5SSteve French default: 344138c8a9a5SSteve French return -EOPNOTSUPP; 344238c8a9a5SSteve French } 344338c8a9a5SSteve French } 344438c8a9a5SSteve French 344538c8a9a5SSteve French static int dentry_name(struct ksmbd_dir_info *d_info, int info_level) 344638c8a9a5SSteve French { 344738c8a9a5SSteve French switch (info_level) { 344838c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 344938c8a9a5SSteve French { 345038c8a9a5SSteve French struct file_full_directory_info *ffdinfo; 345138c8a9a5SSteve French 345238c8a9a5SSteve French ffdinfo = (struct file_full_directory_info *)d_info->rptr; 345338c8a9a5SSteve French d_info->rptr += le32_to_cpu(ffdinfo->NextEntryOffset); 345438c8a9a5SSteve French d_info->name = ffdinfo->FileName; 345538c8a9a5SSteve French d_info->name_len = le32_to_cpu(ffdinfo->FileNameLength); 345638c8a9a5SSteve French return 0; 345738c8a9a5SSteve French } 345838c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 345938c8a9a5SSteve French { 346038c8a9a5SSteve French struct file_both_directory_info *fbdinfo; 346138c8a9a5SSteve French 346238c8a9a5SSteve French fbdinfo = (struct file_both_directory_info *)d_info->rptr; 346338c8a9a5SSteve French d_info->rptr += le32_to_cpu(fbdinfo->NextEntryOffset); 346438c8a9a5SSteve French d_info->name = fbdinfo->FileName; 346538c8a9a5SSteve French d_info->name_len = le32_to_cpu(fbdinfo->FileNameLength); 346638c8a9a5SSteve French return 0; 346738c8a9a5SSteve French } 346838c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 346938c8a9a5SSteve French { 347038c8a9a5SSteve French struct file_directory_info *fdinfo; 347138c8a9a5SSteve French 347238c8a9a5SSteve French fdinfo = (struct file_directory_info *)d_info->rptr; 347338c8a9a5SSteve French d_info->rptr += le32_to_cpu(fdinfo->NextEntryOffset); 347438c8a9a5SSteve French d_info->name = fdinfo->FileName; 347538c8a9a5SSteve French d_info->name_len = le32_to_cpu(fdinfo->FileNameLength); 347638c8a9a5SSteve French return 0; 347738c8a9a5SSteve French } 347838c8a9a5SSteve French case FILE_NAMES_INFORMATION: 347938c8a9a5SSteve French { 348038c8a9a5SSteve French struct file_names_info *fninfo; 348138c8a9a5SSteve French 348238c8a9a5SSteve French fninfo = (struct file_names_info *)d_info->rptr; 348338c8a9a5SSteve French d_info->rptr += le32_to_cpu(fninfo->NextEntryOffset); 348438c8a9a5SSteve French d_info->name = fninfo->FileName; 348538c8a9a5SSteve French d_info->name_len = le32_to_cpu(fninfo->FileNameLength); 348638c8a9a5SSteve French return 0; 348738c8a9a5SSteve French } 348838c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 348938c8a9a5SSteve French { 349038c8a9a5SSteve French struct file_id_full_dir_info *dinfo; 349138c8a9a5SSteve French 349238c8a9a5SSteve French dinfo = (struct file_id_full_dir_info *)d_info->rptr; 349338c8a9a5SSteve French d_info->rptr += le32_to_cpu(dinfo->NextEntryOffset); 349438c8a9a5SSteve French d_info->name = dinfo->FileName; 349538c8a9a5SSteve French d_info->name_len = le32_to_cpu(dinfo->FileNameLength); 349638c8a9a5SSteve French return 0; 349738c8a9a5SSteve French } 349838c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 349938c8a9a5SSteve French { 350038c8a9a5SSteve French struct file_id_both_directory_info *fibdinfo; 350138c8a9a5SSteve French 350238c8a9a5SSteve French fibdinfo = (struct file_id_both_directory_info *)d_info->rptr; 350338c8a9a5SSteve French d_info->rptr += le32_to_cpu(fibdinfo->NextEntryOffset); 350438c8a9a5SSteve French d_info->name = fibdinfo->FileName; 350538c8a9a5SSteve French d_info->name_len = le32_to_cpu(fibdinfo->FileNameLength); 350638c8a9a5SSteve French return 0; 350738c8a9a5SSteve French } 350838c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 350938c8a9a5SSteve French { 351038c8a9a5SSteve French struct smb2_posix_info *posix_info; 351138c8a9a5SSteve French 351238c8a9a5SSteve French posix_info = (struct smb2_posix_info *)d_info->rptr; 351338c8a9a5SSteve French d_info->rptr += le32_to_cpu(posix_info->NextEntryOffset); 351438c8a9a5SSteve French d_info->name = posix_info->name; 351538c8a9a5SSteve French d_info->name_len = le32_to_cpu(posix_info->name_len); 351638c8a9a5SSteve French return 0; 351738c8a9a5SSteve French } 351838c8a9a5SSteve French default: 351938c8a9a5SSteve French return -EINVAL; 352038c8a9a5SSteve French } 352138c8a9a5SSteve French } 352238c8a9a5SSteve French 352338c8a9a5SSteve French /** 352438c8a9a5SSteve French * smb2_populate_readdir_entry() - encode directory entry in smb2 response 352538c8a9a5SSteve French * buffer 352638c8a9a5SSteve French * @conn: connection instance 352738c8a9a5SSteve French * @info_level: smb information level 352838c8a9a5SSteve French * @d_info: structure included variables for query dir 352938c8a9a5SSteve French * @ksmbd_kstat: ksmbd wrapper of dirent stat information 353038c8a9a5SSteve French * 353138c8a9a5SSteve French * if directory has many entries, find first can't read it fully. 353238c8a9a5SSteve French * find next might be called multiple times to read remaining dir entries 353338c8a9a5SSteve French * 353438c8a9a5SSteve French * Return: 0 on success, otherwise error 353538c8a9a5SSteve French */ 353638c8a9a5SSteve French static int smb2_populate_readdir_entry(struct ksmbd_conn *conn, int info_level, 353738c8a9a5SSteve French struct ksmbd_dir_info *d_info, 353838c8a9a5SSteve French struct ksmbd_kstat *ksmbd_kstat) 353938c8a9a5SSteve French { 354038c8a9a5SSteve French int next_entry_offset = 0; 354138c8a9a5SSteve French char *conv_name; 354238c8a9a5SSteve French int conv_len; 354338c8a9a5SSteve French void *kstat; 354438c8a9a5SSteve French int struct_sz, rc = 0; 354538c8a9a5SSteve French 354638c8a9a5SSteve French conv_name = ksmbd_convert_dir_info_name(d_info, 354738c8a9a5SSteve French conn->local_nls, 354838c8a9a5SSteve French &conv_len); 354938c8a9a5SSteve French if (!conv_name) 355038c8a9a5SSteve French return -ENOMEM; 355138c8a9a5SSteve French 355238c8a9a5SSteve French /* Somehow the name has only terminating NULL bytes */ 355338c8a9a5SSteve French if (conv_len < 0) { 355438c8a9a5SSteve French rc = -EINVAL; 355538c8a9a5SSteve French goto free_conv_name; 355638c8a9a5SSteve French } 355738c8a9a5SSteve French 355838c8a9a5SSteve French struct_sz = readdir_info_level_struct_sz(info_level) + conv_len; 355938c8a9a5SSteve French next_entry_offset = ALIGN(struct_sz, KSMBD_DIR_INFO_ALIGNMENT); 356038c8a9a5SSteve French d_info->last_entry_off_align = next_entry_offset - struct_sz; 356138c8a9a5SSteve French 356238c8a9a5SSteve French if (next_entry_offset > d_info->out_buf_len) { 356338c8a9a5SSteve French d_info->out_buf_len = 0; 356438c8a9a5SSteve French rc = -ENOSPC; 356538c8a9a5SSteve French goto free_conv_name; 356638c8a9a5SSteve French } 356738c8a9a5SSteve French 356838c8a9a5SSteve French kstat = d_info->wptr; 356938c8a9a5SSteve French if (info_level != FILE_NAMES_INFORMATION) 357038c8a9a5SSteve French kstat = ksmbd_vfs_init_kstat(&d_info->wptr, ksmbd_kstat); 357138c8a9a5SSteve French 357238c8a9a5SSteve French switch (info_level) { 357338c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 357438c8a9a5SSteve French { 357538c8a9a5SSteve French struct file_full_directory_info *ffdinfo; 357638c8a9a5SSteve French 357738c8a9a5SSteve French ffdinfo = (struct file_full_directory_info *)kstat; 357838c8a9a5SSteve French ffdinfo->FileNameLength = cpu_to_le32(conv_len); 357938c8a9a5SSteve French ffdinfo->EaSize = 358038c8a9a5SSteve French smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); 358138c8a9a5SSteve French if (ffdinfo->EaSize) 358238c8a9a5SSteve French ffdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; 358338c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 358438c8a9a5SSteve French ffdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 358538c8a9a5SSteve French memcpy(ffdinfo->FileName, conv_name, conv_len); 358638c8a9a5SSteve French ffdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 358738c8a9a5SSteve French break; 358838c8a9a5SSteve French } 358938c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 359038c8a9a5SSteve French { 359138c8a9a5SSteve French struct file_both_directory_info *fbdinfo; 359238c8a9a5SSteve French 359338c8a9a5SSteve French fbdinfo = (struct file_both_directory_info *)kstat; 359438c8a9a5SSteve French fbdinfo->FileNameLength = cpu_to_le32(conv_len); 359538c8a9a5SSteve French fbdinfo->EaSize = 359638c8a9a5SSteve French smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); 359738c8a9a5SSteve French if (fbdinfo->EaSize) 359838c8a9a5SSteve French fbdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; 359938c8a9a5SSteve French fbdinfo->ShortNameLength = 0; 360038c8a9a5SSteve French fbdinfo->Reserved = 0; 360138c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 360238c8a9a5SSteve French fbdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 360338c8a9a5SSteve French memcpy(fbdinfo->FileName, conv_name, conv_len); 360438c8a9a5SSteve French fbdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 360538c8a9a5SSteve French break; 360638c8a9a5SSteve French } 360738c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 360838c8a9a5SSteve French { 360938c8a9a5SSteve French struct file_directory_info *fdinfo; 361038c8a9a5SSteve French 361138c8a9a5SSteve French fdinfo = (struct file_directory_info *)kstat; 361238c8a9a5SSteve French fdinfo->FileNameLength = cpu_to_le32(conv_len); 361338c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 361438c8a9a5SSteve French fdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 361538c8a9a5SSteve French memcpy(fdinfo->FileName, conv_name, conv_len); 361638c8a9a5SSteve French fdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 361738c8a9a5SSteve French break; 361838c8a9a5SSteve French } 361938c8a9a5SSteve French case FILE_NAMES_INFORMATION: 362038c8a9a5SSteve French { 362138c8a9a5SSteve French struct file_names_info *fninfo; 362238c8a9a5SSteve French 362338c8a9a5SSteve French fninfo = (struct file_names_info *)kstat; 362438c8a9a5SSteve French fninfo->FileNameLength = cpu_to_le32(conv_len); 362538c8a9a5SSteve French memcpy(fninfo->FileName, conv_name, conv_len); 362638c8a9a5SSteve French fninfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 362738c8a9a5SSteve French break; 362838c8a9a5SSteve French } 362938c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 363038c8a9a5SSteve French { 363138c8a9a5SSteve French struct file_id_full_dir_info *dinfo; 363238c8a9a5SSteve French 363338c8a9a5SSteve French dinfo = (struct file_id_full_dir_info *)kstat; 363438c8a9a5SSteve French dinfo->FileNameLength = cpu_to_le32(conv_len); 363538c8a9a5SSteve French dinfo->EaSize = 363638c8a9a5SSteve French smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); 363738c8a9a5SSteve French if (dinfo->EaSize) 363838c8a9a5SSteve French dinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; 363938c8a9a5SSteve French dinfo->Reserved = 0; 364038c8a9a5SSteve French dinfo->UniqueId = cpu_to_le64(ksmbd_kstat->kstat->ino); 364138c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 364238c8a9a5SSteve French dinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 364338c8a9a5SSteve French memcpy(dinfo->FileName, conv_name, conv_len); 364438c8a9a5SSteve French dinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 364538c8a9a5SSteve French break; 364638c8a9a5SSteve French } 364738c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 364838c8a9a5SSteve French { 364938c8a9a5SSteve French struct file_id_both_directory_info *fibdinfo; 365038c8a9a5SSteve French 365138c8a9a5SSteve French fibdinfo = (struct file_id_both_directory_info *)kstat; 365238c8a9a5SSteve French fibdinfo->FileNameLength = cpu_to_le32(conv_len); 365338c8a9a5SSteve French fibdinfo->EaSize = 365438c8a9a5SSteve French smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode); 365538c8a9a5SSteve French if (fibdinfo->EaSize) 365638c8a9a5SSteve French fibdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE; 365738c8a9a5SSteve French fibdinfo->UniqueId = cpu_to_le64(ksmbd_kstat->kstat->ino); 365838c8a9a5SSteve French fibdinfo->ShortNameLength = 0; 365938c8a9a5SSteve French fibdinfo->Reserved = 0; 366038c8a9a5SSteve French fibdinfo->Reserved2 = cpu_to_le16(0); 366138c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 366238c8a9a5SSteve French fibdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 366338c8a9a5SSteve French memcpy(fibdinfo->FileName, conv_name, conv_len); 366438c8a9a5SSteve French fibdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 366538c8a9a5SSteve French break; 366638c8a9a5SSteve French } 366738c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 366838c8a9a5SSteve French { 366938c8a9a5SSteve French struct smb2_posix_info *posix_info; 367038c8a9a5SSteve French u64 time; 367138c8a9a5SSteve French 367238c8a9a5SSteve French posix_info = (struct smb2_posix_info *)kstat; 367338c8a9a5SSteve French posix_info->Ignored = 0; 367438c8a9a5SSteve French posix_info->CreationTime = cpu_to_le64(ksmbd_kstat->create_time); 367538c8a9a5SSteve French time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->ctime); 367638c8a9a5SSteve French posix_info->ChangeTime = cpu_to_le64(time); 367738c8a9a5SSteve French time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->atime); 367838c8a9a5SSteve French posix_info->LastAccessTime = cpu_to_le64(time); 367938c8a9a5SSteve French time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->mtime); 368038c8a9a5SSteve French posix_info->LastWriteTime = cpu_to_le64(time); 368138c8a9a5SSteve French posix_info->EndOfFile = cpu_to_le64(ksmbd_kstat->kstat->size); 368238c8a9a5SSteve French posix_info->AllocationSize = cpu_to_le64(ksmbd_kstat->kstat->blocks << 9); 368338c8a9a5SSteve French posix_info->DeviceId = cpu_to_le32(ksmbd_kstat->kstat->rdev); 368438c8a9a5SSteve French posix_info->HardLinks = cpu_to_le32(ksmbd_kstat->kstat->nlink); 368538c8a9a5SSteve French posix_info->Mode = cpu_to_le32(ksmbd_kstat->kstat->mode & 0777); 368638c8a9a5SSteve French posix_info->Inode = cpu_to_le64(ksmbd_kstat->kstat->ino); 368738c8a9a5SSteve French posix_info->DosAttributes = 368838c8a9a5SSteve French S_ISDIR(ksmbd_kstat->kstat->mode) ? 368938c8a9a5SSteve French FILE_ATTRIBUTE_DIRECTORY_LE : FILE_ATTRIBUTE_ARCHIVE_LE; 369038c8a9a5SSteve French if (d_info->hide_dot_file && d_info->name[0] == '.') 369138c8a9a5SSteve French posix_info->DosAttributes |= FILE_ATTRIBUTE_HIDDEN_LE; 369238c8a9a5SSteve French /* 369338c8a9a5SSteve French * SidBuffer(32) contain two sids(Domain sid(16), UNIX group sid(16)). 369438c8a9a5SSteve French * UNIX sid(16) = revision(1) + num_subauth(1) + authority(6) + 369538c8a9a5SSteve French * sub_auth(4 * 1(num_subauth)) + RID(4). 369638c8a9a5SSteve French */ 369738c8a9a5SSteve French id_to_sid(from_kuid_munged(&init_user_ns, ksmbd_kstat->kstat->uid), 369838c8a9a5SSteve French SIDUNIX_USER, (struct smb_sid *)&posix_info->SidBuffer[0]); 369938c8a9a5SSteve French id_to_sid(from_kgid_munged(&init_user_ns, ksmbd_kstat->kstat->gid), 370038c8a9a5SSteve French SIDUNIX_GROUP, (struct smb_sid *)&posix_info->SidBuffer[16]); 370138c8a9a5SSteve French memcpy(posix_info->name, conv_name, conv_len); 370238c8a9a5SSteve French posix_info->name_len = cpu_to_le32(conv_len); 370338c8a9a5SSteve French posix_info->NextEntryOffset = cpu_to_le32(next_entry_offset); 370438c8a9a5SSteve French break; 370538c8a9a5SSteve French } 370638c8a9a5SSteve French 370738c8a9a5SSteve French } /* switch (info_level) */ 370838c8a9a5SSteve French 370938c8a9a5SSteve French d_info->last_entry_offset = d_info->data_count; 371038c8a9a5SSteve French d_info->data_count += next_entry_offset; 371138c8a9a5SSteve French d_info->out_buf_len -= next_entry_offset; 371238c8a9a5SSteve French d_info->wptr += next_entry_offset; 371338c8a9a5SSteve French 371438c8a9a5SSteve French ksmbd_debug(SMB, 371538c8a9a5SSteve French "info_level : %d, buf_len :%d, next_offset : %d, data_count : %d\n", 371638c8a9a5SSteve French info_level, d_info->out_buf_len, 371738c8a9a5SSteve French next_entry_offset, d_info->data_count); 371838c8a9a5SSteve French 371938c8a9a5SSteve French free_conv_name: 372038c8a9a5SSteve French kfree(conv_name); 372138c8a9a5SSteve French return rc; 372238c8a9a5SSteve French } 372338c8a9a5SSteve French 372438c8a9a5SSteve French struct smb2_query_dir_private { 372538c8a9a5SSteve French struct ksmbd_work *work; 372638c8a9a5SSteve French char *search_pattern; 372738c8a9a5SSteve French struct ksmbd_file *dir_fp; 372838c8a9a5SSteve French 372938c8a9a5SSteve French struct ksmbd_dir_info *d_info; 373038c8a9a5SSteve French int info_level; 373138c8a9a5SSteve French }; 373238c8a9a5SSteve French 373338c8a9a5SSteve French static void lock_dir(struct ksmbd_file *dir_fp) 373438c8a9a5SSteve French { 373538c8a9a5SSteve French struct dentry *dir = dir_fp->filp->f_path.dentry; 373638c8a9a5SSteve French 373738c8a9a5SSteve French inode_lock_nested(d_inode(dir), I_MUTEX_PARENT); 373838c8a9a5SSteve French } 373938c8a9a5SSteve French 374038c8a9a5SSteve French static void unlock_dir(struct ksmbd_file *dir_fp) 374138c8a9a5SSteve French { 374238c8a9a5SSteve French struct dentry *dir = dir_fp->filp->f_path.dentry; 374338c8a9a5SSteve French 374438c8a9a5SSteve French inode_unlock(d_inode(dir)); 374538c8a9a5SSteve French } 374638c8a9a5SSteve French 374738c8a9a5SSteve French static int process_query_dir_entries(struct smb2_query_dir_private *priv) 374838c8a9a5SSteve French { 374938c8a9a5SSteve French struct mnt_idmap *idmap = file_mnt_idmap(priv->dir_fp->filp); 375038c8a9a5SSteve French struct kstat kstat; 375138c8a9a5SSteve French struct ksmbd_kstat ksmbd_kstat; 375238c8a9a5SSteve French int rc; 375338c8a9a5SSteve French int i; 375438c8a9a5SSteve French 375538c8a9a5SSteve French for (i = 0; i < priv->d_info->num_entry; i++) { 375638c8a9a5SSteve French struct dentry *dent; 375738c8a9a5SSteve French 375838c8a9a5SSteve French if (dentry_name(priv->d_info, priv->info_level)) 375938c8a9a5SSteve French return -EINVAL; 376038c8a9a5SSteve French 376138c8a9a5SSteve French lock_dir(priv->dir_fp); 376238c8a9a5SSteve French dent = lookup_one(idmap, priv->d_info->name, 376338c8a9a5SSteve French priv->dir_fp->filp->f_path.dentry, 376438c8a9a5SSteve French priv->d_info->name_len); 376538c8a9a5SSteve French unlock_dir(priv->dir_fp); 376638c8a9a5SSteve French 376738c8a9a5SSteve French if (IS_ERR(dent)) { 376838c8a9a5SSteve French ksmbd_debug(SMB, "Cannot lookup `%s' [%ld]\n", 376938c8a9a5SSteve French priv->d_info->name, 377038c8a9a5SSteve French PTR_ERR(dent)); 377138c8a9a5SSteve French continue; 377238c8a9a5SSteve French } 377338c8a9a5SSteve French if (unlikely(d_is_negative(dent))) { 377438c8a9a5SSteve French dput(dent); 377538c8a9a5SSteve French ksmbd_debug(SMB, "Negative dentry `%s'\n", 377638c8a9a5SSteve French priv->d_info->name); 377738c8a9a5SSteve French continue; 377838c8a9a5SSteve French } 377938c8a9a5SSteve French 378038c8a9a5SSteve French ksmbd_kstat.kstat = &kstat; 378138c8a9a5SSteve French if (priv->info_level != FILE_NAMES_INFORMATION) 378238c8a9a5SSteve French ksmbd_vfs_fill_dentry_attrs(priv->work, 378338c8a9a5SSteve French idmap, 378438c8a9a5SSteve French dent, 378538c8a9a5SSteve French &ksmbd_kstat); 378638c8a9a5SSteve French 378738c8a9a5SSteve French rc = smb2_populate_readdir_entry(priv->work->conn, 378838c8a9a5SSteve French priv->info_level, 378938c8a9a5SSteve French priv->d_info, 379038c8a9a5SSteve French &ksmbd_kstat); 379138c8a9a5SSteve French dput(dent); 379238c8a9a5SSteve French if (rc) 379338c8a9a5SSteve French return rc; 379438c8a9a5SSteve French } 379538c8a9a5SSteve French return 0; 379638c8a9a5SSteve French } 379738c8a9a5SSteve French 379838c8a9a5SSteve French static int reserve_populate_dentry(struct ksmbd_dir_info *d_info, 379938c8a9a5SSteve French int info_level) 380038c8a9a5SSteve French { 380138c8a9a5SSteve French int struct_sz; 380238c8a9a5SSteve French int conv_len; 380338c8a9a5SSteve French int next_entry_offset; 380438c8a9a5SSteve French 380538c8a9a5SSteve French struct_sz = readdir_info_level_struct_sz(info_level); 380638c8a9a5SSteve French if (struct_sz == -EOPNOTSUPP) 380738c8a9a5SSteve French return -EOPNOTSUPP; 380838c8a9a5SSteve French 380938c8a9a5SSteve French conv_len = (d_info->name_len + 1) * 2; 381038c8a9a5SSteve French next_entry_offset = ALIGN(struct_sz + conv_len, 381138c8a9a5SSteve French KSMBD_DIR_INFO_ALIGNMENT); 381238c8a9a5SSteve French 381338c8a9a5SSteve French if (next_entry_offset > d_info->out_buf_len) { 381438c8a9a5SSteve French d_info->out_buf_len = 0; 381538c8a9a5SSteve French return -ENOSPC; 381638c8a9a5SSteve French } 381738c8a9a5SSteve French 381838c8a9a5SSteve French switch (info_level) { 381938c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 382038c8a9a5SSteve French { 382138c8a9a5SSteve French struct file_full_directory_info *ffdinfo; 382238c8a9a5SSteve French 382338c8a9a5SSteve French ffdinfo = (struct file_full_directory_info *)d_info->wptr; 382438c8a9a5SSteve French memcpy(ffdinfo->FileName, d_info->name, d_info->name_len); 382538c8a9a5SSteve French ffdinfo->FileName[d_info->name_len] = 0x00; 382638c8a9a5SSteve French ffdinfo->FileNameLength = cpu_to_le32(d_info->name_len); 382738c8a9a5SSteve French ffdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 382838c8a9a5SSteve French break; 382938c8a9a5SSteve French } 383038c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 383138c8a9a5SSteve French { 383238c8a9a5SSteve French struct file_both_directory_info *fbdinfo; 383338c8a9a5SSteve French 383438c8a9a5SSteve French fbdinfo = (struct file_both_directory_info *)d_info->wptr; 383538c8a9a5SSteve French memcpy(fbdinfo->FileName, d_info->name, d_info->name_len); 383638c8a9a5SSteve French fbdinfo->FileName[d_info->name_len] = 0x00; 383738c8a9a5SSteve French fbdinfo->FileNameLength = cpu_to_le32(d_info->name_len); 383838c8a9a5SSteve French fbdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 383938c8a9a5SSteve French break; 384038c8a9a5SSteve French } 384138c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 384238c8a9a5SSteve French { 384338c8a9a5SSteve French struct file_directory_info *fdinfo; 384438c8a9a5SSteve French 384538c8a9a5SSteve French fdinfo = (struct file_directory_info *)d_info->wptr; 384638c8a9a5SSteve French memcpy(fdinfo->FileName, d_info->name, d_info->name_len); 384738c8a9a5SSteve French fdinfo->FileName[d_info->name_len] = 0x00; 384838c8a9a5SSteve French fdinfo->FileNameLength = cpu_to_le32(d_info->name_len); 384938c8a9a5SSteve French fdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 385038c8a9a5SSteve French break; 385138c8a9a5SSteve French } 385238c8a9a5SSteve French case FILE_NAMES_INFORMATION: 385338c8a9a5SSteve French { 385438c8a9a5SSteve French struct file_names_info *fninfo; 385538c8a9a5SSteve French 385638c8a9a5SSteve French fninfo = (struct file_names_info *)d_info->wptr; 385738c8a9a5SSteve French memcpy(fninfo->FileName, d_info->name, d_info->name_len); 385838c8a9a5SSteve French fninfo->FileName[d_info->name_len] = 0x00; 385938c8a9a5SSteve French fninfo->FileNameLength = cpu_to_le32(d_info->name_len); 386038c8a9a5SSteve French fninfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 386138c8a9a5SSteve French break; 386238c8a9a5SSteve French } 386338c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 386438c8a9a5SSteve French { 386538c8a9a5SSteve French struct file_id_full_dir_info *dinfo; 386638c8a9a5SSteve French 386738c8a9a5SSteve French dinfo = (struct file_id_full_dir_info *)d_info->wptr; 386838c8a9a5SSteve French memcpy(dinfo->FileName, d_info->name, d_info->name_len); 386938c8a9a5SSteve French dinfo->FileName[d_info->name_len] = 0x00; 387038c8a9a5SSteve French dinfo->FileNameLength = cpu_to_le32(d_info->name_len); 387138c8a9a5SSteve French dinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 387238c8a9a5SSteve French break; 387338c8a9a5SSteve French } 387438c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 387538c8a9a5SSteve French { 387638c8a9a5SSteve French struct file_id_both_directory_info *fibdinfo; 387738c8a9a5SSteve French 387838c8a9a5SSteve French fibdinfo = (struct file_id_both_directory_info *)d_info->wptr; 387938c8a9a5SSteve French memcpy(fibdinfo->FileName, d_info->name, d_info->name_len); 388038c8a9a5SSteve French fibdinfo->FileName[d_info->name_len] = 0x00; 388138c8a9a5SSteve French fibdinfo->FileNameLength = cpu_to_le32(d_info->name_len); 388238c8a9a5SSteve French fibdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset); 388338c8a9a5SSteve French break; 388438c8a9a5SSteve French } 388538c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 388638c8a9a5SSteve French { 388738c8a9a5SSteve French struct smb2_posix_info *posix_info; 388838c8a9a5SSteve French 388938c8a9a5SSteve French posix_info = (struct smb2_posix_info *)d_info->wptr; 389038c8a9a5SSteve French memcpy(posix_info->name, d_info->name, d_info->name_len); 389138c8a9a5SSteve French posix_info->name[d_info->name_len] = 0x00; 389238c8a9a5SSteve French posix_info->name_len = cpu_to_le32(d_info->name_len); 389338c8a9a5SSteve French posix_info->NextEntryOffset = 389438c8a9a5SSteve French cpu_to_le32(next_entry_offset); 389538c8a9a5SSteve French break; 389638c8a9a5SSteve French } 389738c8a9a5SSteve French } /* switch (info_level) */ 389838c8a9a5SSteve French 389938c8a9a5SSteve French d_info->num_entry++; 390038c8a9a5SSteve French d_info->out_buf_len -= next_entry_offset; 390138c8a9a5SSteve French d_info->wptr += next_entry_offset; 390238c8a9a5SSteve French return 0; 390338c8a9a5SSteve French } 390438c8a9a5SSteve French 390538c8a9a5SSteve French static bool __query_dir(struct dir_context *ctx, const char *name, int namlen, 390638c8a9a5SSteve French loff_t offset, u64 ino, unsigned int d_type) 390738c8a9a5SSteve French { 390838c8a9a5SSteve French struct ksmbd_readdir_data *buf; 390938c8a9a5SSteve French struct smb2_query_dir_private *priv; 391038c8a9a5SSteve French struct ksmbd_dir_info *d_info; 391138c8a9a5SSteve French int rc; 391238c8a9a5SSteve French 391338c8a9a5SSteve French buf = container_of(ctx, struct ksmbd_readdir_data, ctx); 391438c8a9a5SSteve French priv = buf->private; 391538c8a9a5SSteve French d_info = priv->d_info; 391638c8a9a5SSteve French 391738c8a9a5SSteve French /* dot and dotdot entries are already reserved */ 391838c8a9a5SSteve French if (!strcmp(".", name) || !strcmp("..", name)) 391938c8a9a5SSteve French return true; 392038c8a9a5SSteve French if (ksmbd_share_veto_filename(priv->work->tcon->share_conf, name)) 392138c8a9a5SSteve French return true; 392238c8a9a5SSteve French if (!match_pattern(name, namlen, priv->search_pattern)) 392338c8a9a5SSteve French return true; 392438c8a9a5SSteve French 392538c8a9a5SSteve French d_info->name = name; 392638c8a9a5SSteve French d_info->name_len = namlen; 392738c8a9a5SSteve French rc = reserve_populate_dentry(d_info, priv->info_level); 392838c8a9a5SSteve French if (rc) 392938c8a9a5SSteve French return false; 393038c8a9a5SSteve French if (d_info->flags & SMB2_RETURN_SINGLE_ENTRY) 393138c8a9a5SSteve French d_info->out_buf_len = 0; 393238c8a9a5SSteve French return true; 393338c8a9a5SSteve French } 393438c8a9a5SSteve French 393538c8a9a5SSteve French static int verify_info_level(int info_level) 393638c8a9a5SSteve French { 393738c8a9a5SSteve French switch (info_level) { 393838c8a9a5SSteve French case FILE_FULL_DIRECTORY_INFORMATION: 393938c8a9a5SSteve French case FILE_BOTH_DIRECTORY_INFORMATION: 394038c8a9a5SSteve French case FILE_DIRECTORY_INFORMATION: 394138c8a9a5SSteve French case FILE_NAMES_INFORMATION: 394238c8a9a5SSteve French case FILEID_FULL_DIRECTORY_INFORMATION: 394338c8a9a5SSteve French case FILEID_BOTH_DIRECTORY_INFORMATION: 394438c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 394538c8a9a5SSteve French break; 394638c8a9a5SSteve French default: 394738c8a9a5SSteve French return -EOPNOTSUPP; 394838c8a9a5SSteve French } 394938c8a9a5SSteve French 395038c8a9a5SSteve French return 0; 395138c8a9a5SSteve French } 395238c8a9a5SSteve French 395338c8a9a5SSteve French static int smb2_resp_buf_len(struct ksmbd_work *work, unsigned short hdr2_len) 395438c8a9a5SSteve French { 395538c8a9a5SSteve French int free_len; 395638c8a9a5SSteve French 395738c8a9a5SSteve French free_len = (int)(work->response_sz - 395838c8a9a5SSteve French (get_rfc1002_len(work->response_buf) + 4)) - hdr2_len; 395938c8a9a5SSteve French return free_len; 396038c8a9a5SSteve French } 396138c8a9a5SSteve French 396238c8a9a5SSteve French static int smb2_calc_max_out_buf_len(struct ksmbd_work *work, 396338c8a9a5SSteve French unsigned short hdr2_len, 396438c8a9a5SSteve French unsigned int out_buf_len) 396538c8a9a5SSteve French { 396638c8a9a5SSteve French int free_len; 396738c8a9a5SSteve French 396838c8a9a5SSteve French if (out_buf_len > work->conn->vals->max_trans_size) 396938c8a9a5SSteve French return -EINVAL; 397038c8a9a5SSteve French 397138c8a9a5SSteve French free_len = smb2_resp_buf_len(work, hdr2_len); 397238c8a9a5SSteve French if (free_len < 0) 397338c8a9a5SSteve French return -EINVAL; 397438c8a9a5SSteve French 397538c8a9a5SSteve French return min_t(int, out_buf_len, free_len); 397638c8a9a5SSteve French } 397738c8a9a5SSteve French 397838c8a9a5SSteve French int smb2_query_dir(struct ksmbd_work *work) 397938c8a9a5SSteve French { 398038c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 398138c8a9a5SSteve French struct smb2_query_directory_req *req; 398238c8a9a5SSteve French struct smb2_query_directory_rsp *rsp; 398338c8a9a5SSteve French struct ksmbd_share_config *share = work->tcon->share_conf; 398438c8a9a5SSteve French struct ksmbd_file *dir_fp = NULL; 398538c8a9a5SSteve French struct ksmbd_dir_info d_info; 398638c8a9a5SSteve French int rc = 0; 398738c8a9a5SSteve French char *srch_ptr = NULL; 398838c8a9a5SSteve French unsigned char srch_flag; 398938c8a9a5SSteve French int buffer_sz; 399038c8a9a5SSteve French struct smb2_query_dir_private query_dir_private = {NULL, }; 399138c8a9a5SSteve French 399238c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 399338c8a9a5SSteve French 399438c8a9a5SSteve French if (ksmbd_override_fsids(work)) { 399538c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MEMORY; 399638c8a9a5SSteve French smb2_set_err_rsp(work); 399738c8a9a5SSteve French return -ENOMEM; 399838c8a9a5SSteve French } 399938c8a9a5SSteve French 400038c8a9a5SSteve French rc = verify_info_level(req->FileInformationClass); 400138c8a9a5SSteve French if (rc) { 400238c8a9a5SSteve French rc = -EFAULT; 400338c8a9a5SSteve French goto err_out2; 400438c8a9a5SSteve French } 400538c8a9a5SSteve French 400638c8a9a5SSteve French dir_fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); 400738c8a9a5SSteve French if (!dir_fp) { 400838c8a9a5SSteve French rc = -EBADF; 400938c8a9a5SSteve French goto err_out2; 401038c8a9a5SSteve French } 401138c8a9a5SSteve French 401238c8a9a5SSteve French if (!(dir_fp->daccess & FILE_LIST_DIRECTORY_LE) || 401338c8a9a5SSteve French inode_permission(file_mnt_idmap(dir_fp->filp), 401438c8a9a5SSteve French file_inode(dir_fp->filp), 401538c8a9a5SSteve French MAY_READ | MAY_EXEC)) { 401638c8a9a5SSteve French pr_err("no right to enumerate directory (%pD)\n", dir_fp->filp); 401738c8a9a5SSteve French rc = -EACCES; 401838c8a9a5SSteve French goto err_out2; 401938c8a9a5SSteve French } 402038c8a9a5SSteve French 402138c8a9a5SSteve French if (!S_ISDIR(file_inode(dir_fp->filp)->i_mode)) { 402238c8a9a5SSteve French pr_err("can't do query dir for a file\n"); 402338c8a9a5SSteve French rc = -EINVAL; 402438c8a9a5SSteve French goto err_out2; 402538c8a9a5SSteve French } 402638c8a9a5SSteve French 402738c8a9a5SSteve French srch_flag = req->Flags; 402838c8a9a5SSteve French srch_ptr = smb_strndup_from_utf16(req->Buffer, 402938c8a9a5SSteve French le16_to_cpu(req->FileNameLength), 1, 403038c8a9a5SSteve French conn->local_nls); 403138c8a9a5SSteve French if (IS_ERR(srch_ptr)) { 403238c8a9a5SSteve French ksmbd_debug(SMB, "Search Pattern not found\n"); 403338c8a9a5SSteve French rc = -EINVAL; 403438c8a9a5SSteve French goto err_out2; 403538c8a9a5SSteve French } else { 403638c8a9a5SSteve French ksmbd_debug(SMB, "Search pattern is %s\n", srch_ptr); 403738c8a9a5SSteve French } 403838c8a9a5SSteve French 403938c8a9a5SSteve French if (srch_flag & SMB2_REOPEN || srch_flag & SMB2_RESTART_SCANS) { 404038c8a9a5SSteve French ksmbd_debug(SMB, "Restart directory scan\n"); 404138c8a9a5SSteve French generic_file_llseek(dir_fp->filp, 0, SEEK_SET); 404238c8a9a5SSteve French } 404338c8a9a5SSteve French 404438c8a9a5SSteve French memset(&d_info, 0, sizeof(struct ksmbd_dir_info)); 404538c8a9a5SSteve French d_info.wptr = (char *)rsp->Buffer; 404638c8a9a5SSteve French d_info.rptr = (char *)rsp->Buffer; 404738c8a9a5SSteve French d_info.out_buf_len = 404838c8a9a5SSteve French smb2_calc_max_out_buf_len(work, 8, 404938c8a9a5SSteve French le32_to_cpu(req->OutputBufferLength)); 405038c8a9a5SSteve French if (d_info.out_buf_len < 0) { 405138c8a9a5SSteve French rc = -EINVAL; 405238c8a9a5SSteve French goto err_out; 405338c8a9a5SSteve French } 405438c8a9a5SSteve French d_info.flags = srch_flag; 405538c8a9a5SSteve French 405638c8a9a5SSteve French /* 405738c8a9a5SSteve French * reserve dot and dotdot entries in head of buffer 405838c8a9a5SSteve French * in first response 405938c8a9a5SSteve French */ 406038c8a9a5SSteve French rc = ksmbd_populate_dot_dotdot_entries(work, req->FileInformationClass, 406138c8a9a5SSteve French dir_fp, &d_info, srch_ptr, 406238c8a9a5SSteve French smb2_populate_readdir_entry); 406338c8a9a5SSteve French if (rc == -ENOSPC) 406438c8a9a5SSteve French rc = 0; 406538c8a9a5SSteve French else if (rc) 406638c8a9a5SSteve French goto err_out; 406738c8a9a5SSteve French 406838c8a9a5SSteve French if (test_share_config_flag(share, KSMBD_SHARE_FLAG_HIDE_DOT_FILES)) 406938c8a9a5SSteve French d_info.hide_dot_file = true; 407038c8a9a5SSteve French 407138c8a9a5SSteve French buffer_sz = d_info.out_buf_len; 407238c8a9a5SSteve French d_info.rptr = d_info.wptr; 407338c8a9a5SSteve French query_dir_private.work = work; 407438c8a9a5SSteve French query_dir_private.search_pattern = srch_ptr; 407538c8a9a5SSteve French query_dir_private.dir_fp = dir_fp; 407638c8a9a5SSteve French query_dir_private.d_info = &d_info; 407738c8a9a5SSteve French query_dir_private.info_level = req->FileInformationClass; 407838c8a9a5SSteve French dir_fp->readdir_data.private = &query_dir_private; 407938c8a9a5SSteve French set_ctx_actor(&dir_fp->readdir_data.ctx, __query_dir); 408038c8a9a5SSteve French 408138c8a9a5SSteve French rc = iterate_dir(dir_fp->filp, &dir_fp->readdir_data.ctx); 408238c8a9a5SSteve French /* 408338c8a9a5SSteve French * req->OutputBufferLength is too small to contain even one entry. 408438c8a9a5SSteve French * In this case, it immediately returns OutputBufferLength 0 to client. 408538c8a9a5SSteve French */ 408638c8a9a5SSteve French if (!d_info.out_buf_len && !d_info.num_entry) 408738c8a9a5SSteve French goto no_buf_len; 408838c8a9a5SSteve French if (rc > 0 || rc == -ENOSPC) 408938c8a9a5SSteve French rc = 0; 409038c8a9a5SSteve French else if (rc) 409138c8a9a5SSteve French goto err_out; 409238c8a9a5SSteve French 409338c8a9a5SSteve French d_info.wptr = d_info.rptr; 409438c8a9a5SSteve French d_info.out_buf_len = buffer_sz; 409538c8a9a5SSteve French rc = process_query_dir_entries(&query_dir_private); 409638c8a9a5SSteve French if (rc) 409738c8a9a5SSteve French goto err_out; 409838c8a9a5SSteve French 409938c8a9a5SSteve French if (!d_info.data_count && d_info.out_buf_len >= 0) { 410038c8a9a5SSteve French if (srch_flag & SMB2_RETURN_SINGLE_ENTRY && !is_asterisk(srch_ptr)) { 410138c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_SUCH_FILE; 410238c8a9a5SSteve French } else { 410338c8a9a5SSteve French dir_fp->dot_dotdot[0] = dir_fp->dot_dotdot[1] = 0; 410438c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MORE_FILES; 410538c8a9a5SSteve French } 410638c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(9); 410738c8a9a5SSteve French rsp->OutputBufferOffset = cpu_to_le16(0); 410838c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(0); 410938c8a9a5SSteve French rsp->Buffer[0] = 0; 4110e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, 4111e2b76ab8SNamjae Jeon sizeof(struct smb2_query_directory_rsp)); 4112e2b76ab8SNamjae Jeon if (rc) 4113e2b76ab8SNamjae Jeon goto err_out; 411438c8a9a5SSteve French } else { 411538c8a9a5SSteve French no_buf_len: 411638c8a9a5SSteve French ((struct file_directory_info *) 411738c8a9a5SSteve French ((char *)rsp->Buffer + d_info.last_entry_offset)) 411838c8a9a5SSteve French ->NextEntryOffset = 0; 411938c8a9a5SSteve French if (d_info.data_count >= d_info.last_entry_off_align) 412038c8a9a5SSteve French d_info.data_count -= d_info.last_entry_off_align; 412138c8a9a5SSteve French 412238c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(9); 412338c8a9a5SSteve French rsp->OutputBufferOffset = cpu_to_le16(72); 412438c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(d_info.data_count); 4125e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, 4126e2b76ab8SNamjae Jeon offsetof(struct smb2_query_directory_rsp, Buffer) + 4127e2b76ab8SNamjae Jeon d_info.data_count); 4128e2b76ab8SNamjae Jeon if (rc) 4129e2b76ab8SNamjae Jeon goto err_out; 413038c8a9a5SSteve French } 413138c8a9a5SSteve French 413238c8a9a5SSteve French kfree(srch_ptr); 413338c8a9a5SSteve French ksmbd_fd_put(work, dir_fp); 413438c8a9a5SSteve French ksmbd_revert_fsids(work); 413538c8a9a5SSteve French return 0; 413638c8a9a5SSteve French 413738c8a9a5SSteve French err_out: 413838c8a9a5SSteve French pr_err("error while processing smb2 query dir rc = %d\n", rc); 413938c8a9a5SSteve French kfree(srch_ptr); 414038c8a9a5SSteve French 414138c8a9a5SSteve French err_out2: 414238c8a9a5SSteve French if (rc == -EINVAL) 414338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 414438c8a9a5SSteve French else if (rc == -EACCES) 414538c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 414638c8a9a5SSteve French else if (rc == -ENOENT) 414738c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_SUCH_FILE; 414838c8a9a5SSteve French else if (rc == -EBADF) 414938c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 415038c8a9a5SSteve French else if (rc == -ENOMEM) 415138c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_MEMORY; 415238c8a9a5SSteve French else if (rc == -EFAULT) 415338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_INFO_CLASS; 415438c8a9a5SSteve French else if (rc == -EIO) 415538c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CORRUPT_ERROR; 415638c8a9a5SSteve French if (!rsp->hdr.Status) 415738c8a9a5SSteve French rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; 415838c8a9a5SSteve French 415938c8a9a5SSteve French smb2_set_err_rsp(work); 416038c8a9a5SSteve French ksmbd_fd_put(work, dir_fp); 416138c8a9a5SSteve French ksmbd_revert_fsids(work); 416238c8a9a5SSteve French return 0; 416338c8a9a5SSteve French } 416438c8a9a5SSteve French 416538c8a9a5SSteve French /** 416638c8a9a5SSteve French * buffer_check_err() - helper function to check buffer errors 416738c8a9a5SSteve French * @reqOutputBufferLength: max buffer length expected in command response 416838c8a9a5SSteve French * @rsp: query info response buffer contains output buffer length 416938c8a9a5SSteve French * @rsp_org: base response buffer pointer in case of chained response 417038c8a9a5SSteve French * 417138c8a9a5SSteve French * Return: 0 on success, otherwise error 417238c8a9a5SSteve French */ 417338c8a9a5SSteve French static int buffer_check_err(int reqOutputBufferLength, 417438c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 4175e2b76ab8SNamjae Jeon void *rsp_org) 417638c8a9a5SSteve French { 417738c8a9a5SSteve French if (reqOutputBufferLength < le32_to_cpu(rsp->OutputBufferLength)) { 417838c8a9a5SSteve French pr_err("Invalid Buffer Size Requested\n"); 417938c8a9a5SSteve French rsp->hdr.Status = STATUS_INFO_LENGTH_MISMATCH; 418038c8a9a5SSteve French *(__be32 *)rsp_org = cpu_to_be32(sizeof(struct smb2_hdr)); 418138c8a9a5SSteve French return -EINVAL; 418238c8a9a5SSteve French } 418338c8a9a5SSteve French return 0; 418438c8a9a5SSteve French } 418538c8a9a5SSteve French 418638c8a9a5SSteve French static void get_standard_info_pipe(struct smb2_query_info_rsp *rsp, 418738c8a9a5SSteve French void *rsp_org) 418838c8a9a5SSteve French { 418938c8a9a5SSteve French struct smb2_file_standard_info *sinfo; 419038c8a9a5SSteve French 419138c8a9a5SSteve French sinfo = (struct smb2_file_standard_info *)rsp->Buffer; 419238c8a9a5SSteve French 419338c8a9a5SSteve French sinfo->AllocationSize = cpu_to_le64(4096); 419438c8a9a5SSteve French sinfo->EndOfFile = cpu_to_le64(0); 419538c8a9a5SSteve French sinfo->NumberOfLinks = cpu_to_le32(1); 419638c8a9a5SSteve French sinfo->DeletePending = 1; 419738c8a9a5SSteve French sinfo->Directory = 0; 419838c8a9a5SSteve French rsp->OutputBufferLength = 419938c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_standard_info)); 420038c8a9a5SSteve French } 420138c8a9a5SSteve French 420238c8a9a5SSteve French static void get_internal_info_pipe(struct smb2_query_info_rsp *rsp, u64 num, 420338c8a9a5SSteve French void *rsp_org) 420438c8a9a5SSteve French { 420538c8a9a5SSteve French struct smb2_file_internal_info *file_info; 420638c8a9a5SSteve French 420738c8a9a5SSteve French file_info = (struct smb2_file_internal_info *)rsp->Buffer; 420838c8a9a5SSteve French 420938c8a9a5SSteve French /* any unique number */ 421038c8a9a5SSteve French file_info->IndexNumber = cpu_to_le64(num | (1ULL << 63)); 421138c8a9a5SSteve French rsp->OutputBufferLength = 421238c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_internal_info)); 421338c8a9a5SSteve French } 421438c8a9a5SSteve French 421538c8a9a5SSteve French static int smb2_get_info_file_pipe(struct ksmbd_session *sess, 421638c8a9a5SSteve French struct smb2_query_info_req *req, 421738c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 421838c8a9a5SSteve French void *rsp_org) 421938c8a9a5SSteve French { 422038c8a9a5SSteve French u64 id; 422138c8a9a5SSteve French int rc; 422238c8a9a5SSteve French 422338c8a9a5SSteve French /* 422438c8a9a5SSteve French * Windows can sometime send query file info request on 422538c8a9a5SSteve French * pipe without opening it, checking error condition here 422638c8a9a5SSteve French */ 422738c8a9a5SSteve French id = req->VolatileFileId; 422838c8a9a5SSteve French if (!ksmbd_session_rpc_method(sess, id)) 422938c8a9a5SSteve French return -ENOENT; 423038c8a9a5SSteve French 423138c8a9a5SSteve French ksmbd_debug(SMB, "FileInfoClass %u, FileId 0x%llx\n", 423238c8a9a5SSteve French req->FileInfoClass, req->VolatileFileId); 423338c8a9a5SSteve French 423438c8a9a5SSteve French switch (req->FileInfoClass) { 423538c8a9a5SSteve French case FILE_STANDARD_INFORMATION: 423638c8a9a5SSteve French get_standard_info_pipe(rsp, rsp_org); 423738c8a9a5SSteve French rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), 4238e2b76ab8SNamjae Jeon rsp, rsp_org); 423938c8a9a5SSteve French break; 424038c8a9a5SSteve French case FILE_INTERNAL_INFORMATION: 424138c8a9a5SSteve French get_internal_info_pipe(rsp, id, rsp_org); 424238c8a9a5SSteve French rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), 4243e2b76ab8SNamjae Jeon rsp, rsp_org); 424438c8a9a5SSteve French break; 424538c8a9a5SSteve French default: 424638c8a9a5SSteve French ksmbd_debug(SMB, "smb2_info_file_pipe for %u not supported\n", 424738c8a9a5SSteve French req->FileInfoClass); 424838c8a9a5SSteve French rc = -EOPNOTSUPP; 424938c8a9a5SSteve French } 425038c8a9a5SSteve French return rc; 425138c8a9a5SSteve French } 425238c8a9a5SSteve French 425338c8a9a5SSteve French /** 425438c8a9a5SSteve French * smb2_get_ea() - handler for smb2 get extended attribute command 425538c8a9a5SSteve French * @work: smb work containing query info command buffer 425638c8a9a5SSteve French * @fp: ksmbd_file pointer 425738c8a9a5SSteve French * @req: get extended attribute request 425838c8a9a5SSteve French * @rsp: response buffer pointer 425938c8a9a5SSteve French * @rsp_org: base response buffer pointer in case of chained response 426038c8a9a5SSteve French * 426138c8a9a5SSteve French * Return: 0 on success, otherwise error 426238c8a9a5SSteve French */ 426338c8a9a5SSteve French static int smb2_get_ea(struct ksmbd_work *work, struct ksmbd_file *fp, 426438c8a9a5SSteve French struct smb2_query_info_req *req, 426538c8a9a5SSteve French struct smb2_query_info_rsp *rsp, void *rsp_org) 426638c8a9a5SSteve French { 426738c8a9a5SSteve French struct smb2_ea_info *eainfo, *prev_eainfo; 426838c8a9a5SSteve French char *name, *ptr, *xattr_list = NULL, *buf; 426938c8a9a5SSteve French int rc, name_len, value_len, xattr_list_len, idx; 427038c8a9a5SSteve French ssize_t buf_free_len, alignment_bytes, next_offset, rsp_data_cnt = 0; 427138c8a9a5SSteve French struct smb2_ea_info_req *ea_req = NULL; 427238c8a9a5SSteve French const struct path *path; 427338c8a9a5SSteve French struct mnt_idmap *idmap = file_mnt_idmap(fp->filp); 427438c8a9a5SSteve French 427538c8a9a5SSteve French if (!(fp->daccess & FILE_READ_EA_LE)) { 427638c8a9a5SSteve French pr_err("Not permitted to read ext attr : 0x%x\n", 427738c8a9a5SSteve French fp->daccess); 427838c8a9a5SSteve French return -EACCES; 427938c8a9a5SSteve French } 428038c8a9a5SSteve French 428138c8a9a5SSteve French path = &fp->filp->f_path; 428238c8a9a5SSteve French /* single EA entry is requested with given user.* name */ 428338c8a9a5SSteve French if (req->InputBufferLength) { 428438c8a9a5SSteve French if (le32_to_cpu(req->InputBufferLength) < 428538c8a9a5SSteve French sizeof(struct smb2_ea_info_req)) 428638c8a9a5SSteve French return -EINVAL; 428738c8a9a5SSteve French 428838c8a9a5SSteve French ea_req = (struct smb2_ea_info_req *)req->Buffer; 428938c8a9a5SSteve French } else { 429038c8a9a5SSteve French /* need to send all EAs, if no specific EA is requested*/ 429138c8a9a5SSteve French if (le32_to_cpu(req->Flags) & SL_RETURN_SINGLE_ENTRY) 429238c8a9a5SSteve French ksmbd_debug(SMB, 429338c8a9a5SSteve French "All EAs are requested but need to send single EA entry in rsp flags 0x%x\n", 429438c8a9a5SSteve French le32_to_cpu(req->Flags)); 429538c8a9a5SSteve French } 429638c8a9a5SSteve French 429738c8a9a5SSteve French buf_free_len = 429838c8a9a5SSteve French smb2_calc_max_out_buf_len(work, 8, 429938c8a9a5SSteve French le32_to_cpu(req->OutputBufferLength)); 430038c8a9a5SSteve French if (buf_free_len < 0) 430138c8a9a5SSteve French return -EINVAL; 430238c8a9a5SSteve French 430338c8a9a5SSteve French rc = ksmbd_vfs_listxattr(path->dentry, &xattr_list); 430438c8a9a5SSteve French if (rc < 0) { 430538c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 430638c8a9a5SSteve French goto out; 430738c8a9a5SSteve French } else if (!rc) { /* there is no EA in the file */ 430838c8a9a5SSteve French ksmbd_debug(SMB, "no ea data in the file\n"); 430938c8a9a5SSteve French goto done; 431038c8a9a5SSteve French } 431138c8a9a5SSteve French xattr_list_len = rc; 431238c8a9a5SSteve French 431338c8a9a5SSteve French ptr = (char *)rsp->Buffer; 431438c8a9a5SSteve French eainfo = (struct smb2_ea_info *)ptr; 431538c8a9a5SSteve French prev_eainfo = eainfo; 431638c8a9a5SSteve French idx = 0; 431738c8a9a5SSteve French 431838c8a9a5SSteve French while (idx < xattr_list_len) { 431938c8a9a5SSteve French name = xattr_list + idx; 432038c8a9a5SSteve French name_len = strlen(name); 432138c8a9a5SSteve French 432238c8a9a5SSteve French ksmbd_debug(SMB, "%s, len %d\n", name, name_len); 432338c8a9a5SSteve French idx += name_len + 1; 432438c8a9a5SSteve French 432538c8a9a5SSteve French /* 432638c8a9a5SSteve French * CIFS does not support EA other than user.* namespace, 432738c8a9a5SSteve French * still keep the framework generic, to list other attrs 432838c8a9a5SSteve French * in future. 432938c8a9a5SSteve French */ 433038c8a9a5SSteve French if (strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) 433138c8a9a5SSteve French continue; 433238c8a9a5SSteve French 433338c8a9a5SSteve French if (!strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, 433438c8a9a5SSteve French STREAM_PREFIX_LEN)) 433538c8a9a5SSteve French continue; 433638c8a9a5SSteve French 433738c8a9a5SSteve French if (req->InputBufferLength && 433838c8a9a5SSteve French strncmp(&name[XATTR_USER_PREFIX_LEN], ea_req->name, 433938c8a9a5SSteve French ea_req->EaNameLength)) 434038c8a9a5SSteve French continue; 434138c8a9a5SSteve French 434238c8a9a5SSteve French if (!strncmp(&name[XATTR_USER_PREFIX_LEN], 434338c8a9a5SSteve French DOS_ATTRIBUTE_PREFIX, DOS_ATTRIBUTE_PREFIX_LEN)) 434438c8a9a5SSteve French continue; 434538c8a9a5SSteve French 434638c8a9a5SSteve French if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) 434738c8a9a5SSteve French name_len -= XATTR_USER_PREFIX_LEN; 434838c8a9a5SSteve French 43490ba5439dSNamjae Jeon ptr = eainfo->name + name_len + 1; 435038c8a9a5SSteve French buf_free_len -= (offsetof(struct smb2_ea_info, name) + 435138c8a9a5SSteve French name_len + 1); 435238c8a9a5SSteve French /* bailout if xattr can't fit in buf_free_len */ 435338c8a9a5SSteve French value_len = ksmbd_vfs_getxattr(idmap, path->dentry, 435438c8a9a5SSteve French name, &buf); 435538c8a9a5SSteve French if (value_len <= 0) { 435638c8a9a5SSteve French rc = -ENOENT; 435738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 435838c8a9a5SSteve French goto out; 435938c8a9a5SSteve French } 436038c8a9a5SSteve French 436138c8a9a5SSteve French buf_free_len -= value_len; 436238c8a9a5SSteve French if (buf_free_len < 0) { 436338c8a9a5SSteve French kfree(buf); 436438c8a9a5SSteve French break; 436538c8a9a5SSteve French } 436638c8a9a5SSteve French 436738c8a9a5SSteve French memcpy(ptr, buf, value_len); 436838c8a9a5SSteve French kfree(buf); 436938c8a9a5SSteve French 437038c8a9a5SSteve French ptr += value_len; 437138c8a9a5SSteve French eainfo->Flags = 0; 437238c8a9a5SSteve French eainfo->EaNameLength = name_len; 437338c8a9a5SSteve French 437438c8a9a5SSteve French if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) 437538c8a9a5SSteve French memcpy(eainfo->name, &name[XATTR_USER_PREFIX_LEN], 437638c8a9a5SSteve French name_len); 437738c8a9a5SSteve French else 437838c8a9a5SSteve French memcpy(eainfo->name, name, name_len); 437938c8a9a5SSteve French 438038c8a9a5SSteve French eainfo->name[name_len] = '\0'; 438138c8a9a5SSteve French eainfo->EaValueLength = cpu_to_le16(value_len); 438238c8a9a5SSteve French next_offset = offsetof(struct smb2_ea_info, name) + 438338c8a9a5SSteve French name_len + 1 + value_len; 438438c8a9a5SSteve French 438538c8a9a5SSteve French /* align next xattr entry at 4 byte bundary */ 438638c8a9a5SSteve French alignment_bytes = ((next_offset + 3) & ~3) - next_offset; 438738c8a9a5SSteve French if (alignment_bytes) { 438838c8a9a5SSteve French memset(ptr, '\0', alignment_bytes); 438938c8a9a5SSteve French ptr += alignment_bytes; 439038c8a9a5SSteve French next_offset += alignment_bytes; 439138c8a9a5SSteve French buf_free_len -= alignment_bytes; 439238c8a9a5SSteve French } 439338c8a9a5SSteve French eainfo->NextEntryOffset = cpu_to_le32(next_offset); 439438c8a9a5SSteve French prev_eainfo = eainfo; 439538c8a9a5SSteve French eainfo = (struct smb2_ea_info *)ptr; 439638c8a9a5SSteve French rsp_data_cnt += next_offset; 439738c8a9a5SSteve French 439838c8a9a5SSteve French if (req->InputBufferLength) { 439938c8a9a5SSteve French ksmbd_debug(SMB, "single entry requested\n"); 440038c8a9a5SSteve French break; 440138c8a9a5SSteve French } 440238c8a9a5SSteve French } 440338c8a9a5SSteve French 440438c8a9a5SSteve French /* no more ea entries */ 440538c8a9a5SSteve French prev_eainfo->NextEntryOffset = 0; 440638c8a9a5SSteve French done: 440738c8a9a5SSteve French rc = 0; 440838c8a9a5SSteve French if (rsp_data_cnt == 0) 440938c8a9a5SSteve French rsp->hdr.Status = STATUS_NO_EAS_ON_FILE; 441038c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(rsp_data_cnt); 441138c8a9a5SSteve French out: 441238c8a9a5SSteve French kvfree(xattr_list); 441338c8a9a5SSteve French return rc; 441438c8a9a5SSteve French } 441538c8a9a5SSteve French 441638c8a9a5SSteve French static void get_file_access_info(struct smb2_query_info_rsp *rsp, 441738c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 441838c8a9a5SSteve French { 441938c8a9a5SSteve French struct smb2_file_access_info *file_info; 442038c8a9a5SSteve French 442138c8a9a5SSteve French file_info = (struct smb2_file_access_info *)rsp->Buffer; 442238c8a9a5SSteve French file_info->AccessFlags = fp->daccess; 442338c8a9a5SSteve French rsp->OutputBufferLength = 442438c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_access_info)); 442538c8a9a5SSteve French } 442638c8a9a5SSteve French 442738c8a9a5SSteve French static int get_file_basic_info(struct smb2_query_info_rsp *rsp, 442838c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 442938c8a9a5SSteve French { 443038c8a9a5SSteve French struct smb2_file_basic_info *basic_info; 443138c8a9a5SSteve French struct kstat stat; 443238c8a9a5SSteve French u64 time; 443338c8a9a5SSteve French 443438c8a9a5SSteve French if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { 443538c8a9a5SSteve French pr_err("no right to read the attributes : 0x%x\n", 443638c8a9a5SSteve French fp->daccess); 443738c8a9a5SSteve French return -EACCES; 443838c8a9a5SSteve French } 443938c8a9a5SSteve French 444038c8a9a5SSteve French basic_info = (struct smb2_file_basic_info *)rsp->Buffer; 44410d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, 44420d72b928SJeff Layton file_inode(fp->filp), &stat); 444338c8a9a5SSteve French basic_info->CreationTime = cpu_to_le64(fp->create_time); 444438c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.atime); 444538c8a9a5SSteve French basic_info->LastAccessTime = cpu_to_le64(time); 444638c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.mtime); 444738c8a9a5SSteve French basic_info->LastWriteTime = cpu_to_le64(time); 444838c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.ctime); 444938c8a9a5SSteve French basic_info->ChangeTime = cpu_to_le64(time); 445038c8a9a5SSteve French basic_info->Attributes = fp->f_ci->m_fattr; 445138c8a9a5SSteve French basic_info->Pad1 = 0; 445238c8a9a5SSteve French rsp->OutputBufferLength = 445338c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_basic_info)); 445438c8a9a5SSteve French return 0; 445538c8a9a5SSteve French } 445638c8a9a5SSteve French 445738c8a9a5SSteve French static void get_file_standard_info(struct smb2_query_info_rsp *rsp, 445838c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 445938c8a9a5SSteve French { 446038c8a9a5SSteve French struct smb2_file_standard_info *sinfo; 446138c8a9a5SSteve French unsigned int delete_pending; 446238c8a9a5SSteve French struct inode *inode; 446338c8a9a5SSteve French struct kstat stat; 446438c8a9a5SSteve French 446538c8a9a5SSteve French inode = file_inode(fp->filp); 44660d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, inode, &stat); 446738c8a9a5SSteve French 446838c8a9a5SSteve French sinfo = (struct smb2_file_standard_info *)rsp->Buffer; 446938c8a9a5SSteve French delete_pending = ksmbd_inode_pending_delete(fp); 447038c8a9a5SSteve French 44716cc2268fSNamjae Jeon sinfo->AllocationSize = cpu_to_le64(inode->i_blocks << 9); 447238c8a9a5SSteve French sinfo->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); 447338c8a9a5SSteve French sinfo->NumberOfLinks = cpu_to_le32(get_nlink(&stat) - delete_pending); 447438c8a9a5SSteve French sinfo->DeletePending = delete_pending; 447538c8a9a5SSteve French sinfo->Directory = S_ISDIR(stat.mode) ? 1 : 0; 447638c8a9a5SSteve French rsp->OutputBufferLength = 447738c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_standard_info)); 447838c8a9a5SSteve French } 447938c8a9a5SSteve French 448038c8a9a5SSteve French static void get_file_alignment_info(struct smb2_query_info_rsp *rsp, 448138c8a9a5SSteve French void *rsp_org) 448238c8a9a5SSteve French { 448338c8a9a5SSteve French struct smb2_file_alignment_info *file_info; 448438c8a9a5SSteve French 448538c8a9a5SSteve French file_info = (struct smb2_file_alignment_info *)rsp->Buffer; 448638c8a9a5SSteve French file_info->AlignmentRequirement = 0; 448738c8a9a5SSteve French rsp->OutputBufferLength = 448838c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_alignment_info)); 448938c8a9a5SSteve French } 449038c8a9a5SSteve French 449138c8a9a5SSteve French static int get_file_all_info(struct ksmbd_work *work, 449238c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 449338c8a9a5SSteve French struct ksmbd_file *fp, 449438c8a9a5SSteve French void *rsp_org) 449538c8a9a5SSteve French { 449638c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 449738c8a9a5SSteve French struct smb2_file_all_info *file_info; 449838c8a9a5SSteve French unsigned int delete_pending; 449938c8a9a5SSteve French struct inode *inode; 450038c8a9a5SSteve French struct kstat stat; 450138c8a9a5SSteve French int conv_len; 450238c8a9a5SSteve French char *filename; 450338c8a9a5SSteve French u64 time; 450438c8a9a5SSteve French 450538c8a9a5SSteve French if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { 450638c8a9a5SSteve French ksmbd_debug(SMB, "no right to read the attributes : 0x%x\n", 450738c8a9a5SSteve French fp->daccess); 450838c8a9a5SSteve French return -EACCES; 450938c8a9a5SSteve French } 451038c8a9a5SSteve French 451138c8a9a5SSteve French filename = convert_to_nt_pathname(work->tcon->share_conf, &fp->filp->f_path); 451238c8a9a5SSteve French if (IS_ERR(filename)) 451338c8a9a5SSteve French return PTR_ERR(filename); 451438c8a9a5SSteve French 451538c8a9a5SSteve French inode = file_inode(fp->filp); 45160d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, inode, &stat); 451738c8a9a5SSteve French 451838c8a9a5SSteve French ksmbd_debug(SMB, "filename = %s\n", filename); 451938c8a9a5SSteve French delete_pending = ksmbd_inode_pending_delete(fp); 452038c8a9a5SSteve French file_info = (struct smb2_file_all_info *)rsp->Buffer; 452138c8a9a5SSteve French 452238c8a9a5SSteve French file_info->CreationTime = cpu_to_le64(fp->create_time); 452338c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.atime); 452438c8a9a5SSteve French file_info->LastAccessTime = cpu_to_le64(time); 452538c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.mtime); 452638c8a9a5SSteve French file_info->LastWriteTime = cpu_to_le64(time); 452738c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.ctime); 452838c8a9a5SSteve French file_info->ChangeTime = cpu_to_le64(time); 452938c8a9a5SSteve French file_info->Attributes = fp->f_ci->m_fattr; 453038c8a9a5SSteve French file_info->Pad1 = 0; 453138c8a9a5SSteve French file_info->AllocationSize = 45326cc2268fSNamjae Jeon cpu_to_le64(inode->i_blocks << 9); 453338c8a9a5SSteve French file_info->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); 453438c8a9a5SSteve French file_info->NumberOfLinks = 453538c8a9a5SSteve French cpu_to_le32(get_nlink(&stat) - delete_pending); 453638c8a9a5SSteve French file_info->DeletePending = delete_pending; 453738c8a9a5SSteve French file_info->Directory = S_ISDIR(stat.mode) ? 1 : 0; 453838c8a9a5SSteve French file_info->Pad2 = 0; 453938c8a9a5SSteve French file_info->IndexNumber = cpu_to_le64(stat.ino); 454038c8a9a5SSteve French file_info->EASize = 0; 454138c8a9a5SSteve French file_info->AccessFlags = fp->daccess; 454238c8a9a5SSteve French file_info->CurrentByteOffset = cpu_to_le64(fp->filp->f_pos); 454338c8a9a5SSteve French file_info->Mode = fp->coption; 454438c8a9a5SSteve French file_info->AlignmentRequirement = 0; 454538c8a9a5SSteve French conv_len = smbConvertToUTF16((__le16 *)file_info->FileName, filename, 454638c8a9a5SSteve French PATH_MAX, conn->local_nls, 0); 454738c8a9a5SSteve French conv_len *= 2; 454838c8a9a5SSteve French file_info->FileNameLength = cpu_to_le32(conv_len); 454938c8a9a5SSteve French rsp->OutputBufferLength = 455038c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_all_info) + conv_len - 1); 455138c8a9a5SSteve French kfree(filename); 455238c8a9a5SSteve French return 0; 455338c8a9a5SSteve French } 455438c8a9a5SSteve French 455538c8a9a5SSteve French static void get_file_alternate_info(struct ksmbd_work *work, 455638c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 455738c8a9a5SSteve French struct ksmbd_file *fp, 455838c8a9a5SSteve French void *rsp_org) 455938c8a9a5SSteve French { 456038c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 456138c8a9a5SSteve French struct smb2_file_alt_name_info *file_info; 456238c8a9a5SSteve French struct dentry *dentry = fp->filp->f_path.dentry; 456338c8a9a5SSteve French int conv_len; 456438c8a9a5SSteve French 456538c8a9a5SSteve French spin_lock(&dentry->d_lock); 456638c8a9a5SSteve French file_info = (struct smb2_file_alt_name_info *)rsp->Buffer; 456738c8a9a5SSteve French conv_len = ksmbd_extract_shortname(conn, 456838c8a9a5SSteve French dentry->d_name.name, 456938c8a9a5SSteve French file_info->FileName); 457038c8a9a5SSteve French spin_unlock(&dentry->d_lock); 457138c8a9a5SSteve French file_info->FileNameLength = cpu_to_le32(conv_len); 457238c8a9a5SSteve French rsp->OutputBufferLength = 457338c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_alt_name_info) + conv_len); 457438c8a9a5SSteve French } 457538c8a9a5SSteve French 457638c8a9a5SSteve French static void get_file_stream_info(struct ksmbd_work *work, 457738c8a9a5SSteve French struct smb2_query_info_rsp *rsp, 457838c8a9a5SSteve French struct ksmbd_file *fp, 457938c8a9a5SSteve French void *rsp_org) 458038c8a9a5SSteve French { 458138c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 458238c8a9a5SSteve French struct smb2_file_stream_info *file_info; 458338c8a9a5SSteve French char *stream_name, *xattr_list = NULL, *stream_buf; 458438c8a9a5SSteve French struct kstat stat; 458538c8a9a5SSteve French const struct path *path = &fp->filp->f_path; 458638c8a9a5SSteve French ssize_t xattr_list_len; 458738c8a9a5SSteve French int nbytes = 0, streamlen, stream_name_len, next, idx = 0; 458838c8a9a5SSteve French int buf_free_len; 458938c8a9a5SSteve French struct smb2_query_info_req *req = ksmbd_req_buf_next(work); 459038c8a9a5SSteve French 45910d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, 45920d72b928SJeff Layton file_inode(fp->filp), &stat); 459338c8a9a5SSteve French file_info = (struct smb2_file_stream_info *)rsp->Buffer; 459438c8a9a5SSteve French 459538c8a9a5SSteve French buf_free_len = 459638c8a9a5SSteve French smb2_calc_max_out_buf_len(work, 8, 459738c8a9a5SSteve French le32_to_cpu(req->OutputBufferLength)); 459838c8a9a5SSteve French if (buf_free_len < 0) 459938c8a9a5SSteve French goto out; 460038c8a9a5SSteve French 460138c8a9a5SSteve French xattr_list_len = ksmbd_vfs_listxattr(path->dentry, &xattr_list); 460238c8a9a5SSteve French if (xattr_list_len < 0) { 460338c8a9a5SSteve French goto out; 460438c8a9a5SSteve French } else if (!xattr_list_len) { 460538c8a9a5SSteve French ksmbd_debug(SMB, "empty xattr in the file\n"); 460638c8a9a5SSteve French goto out; 460738c8a9a5SSteve French } 460838c8a9a5SSteve French 460938c8a9a5SSteve French while (idx < xattr_list_len) { 461038c8a9a5SSteve French stream_name = xattr_list + idx; 461138c8a9a5SSteve French streamlen = strlen(stream_name); 461238c8a9a5SSteve French idx += streamlen + 1; 461338c8a9a5SSteve French 461438c8a9a5SSteve French ksmbd_debug(SMB, "%s, len %d\n", stream_name, streamlen); 461538c8a9a5SSteve French 461638c8a9a5SSteve French if (strncmp(&stream_name[XATTR_USER_PREFIX_LEN], 461738c8a9a5SSteve French STREAM_PREFIX, STREAM_PREFIX_LEN)) 461838c8a9a5SSteve French continue; 461938c8a9a5SSteve French 462038c8a9a5SSteve French stream_name_len = streamlen - (XATTR_USER_PREFIX_LEN + 462138c8a9a5SSteve French STREAM_PREFIX_LEN); 462238c8a9a5SSteve French streamlen = stream_name_len; 462338c8a9a5SSteve French 462438c8a9a5SSteve French /* plus : size */ 462538c8a9a5SSteve French streamlen += 1; 462638c8a9a5SSteve French stream_buf = kmalloc(streamlen + 1, GFP_KERNEL); 462738c8a9a5SSteve French if (!stream_buf) 462838c8a9a5SSteve French break; 462938c8a9a5SSteve French 463038c8a9a5SSteve French streamlen = snprintf(stream_buf, streamlen + 1, 463138c8a9a5SSteve French ":%s", &stream_name[XATTR_NAME_STREAM_LEN]); 463238c8a9a5SSteve French 463338c8a9a5SSteve French next = sizeof(struct smb2_file_stream_info) + streamlen * 2; 463438c8a9a5SSteve French if (next > buf_free_len) { 463538c8a9a5SSteve French kfree(stream_buf); 463638c8a9a5SSteve French break; 463738c8a9a5SSteve French } 463838c8a9a5SSteve French 463938c8a9a5SSteve French file_info = (struct smb2_file_stream_info *)&rsp->Buffer[nbytes]; 464038c8a9a5SSteve French streamlen = smbConvertToUTF16((__le16 *)file_info->StreamName, 464138c8a9a5SSteve French stream_buf, streamlen, 464238c8a9a5SSteve French conn->local_nls, 0); 464338c8a9a5SSteve French streamlen *= 2; 464438c8a9a5SSteve French kfree(stream_buf); 464538c8a9a5SSteve French file_info->StreamNameLength = cpu_to_le32(streamlen); 464638c8a9a5SSteve French file_info->StreamSize = cpu_to_le64(stream_name_len); 464738c8a9a5SSteve French file_info->StreamAllocationSize = cpu_to_le64(stream_name_len); 464838c8a9a5SSteve French 464938c8a9a5SSteve French nbytes += next; 465038c8a9a5SSteve French buf_free_len -= next; 465138c8a9a5SSteve French file_info->NextEntryOffset = cpu_to_le32(next); 465238c8a9a5SSteve French } 465338c8a9a5SSteve French 465438c8a9a5SSteve French out: 465538c8a9a5SSteve French if (!S_ISDIR(stat.mode) && 465638c8a9a5SSteve French buf_free_len >= sizeof(struct smb2_file_stream_info) + 7 * 2) { 465738c8a9a5SSteve French file_info = (struct smb2_file_stream_info *) 465838c8a9a5SSteve French &rsp->Buffer[nbytes]; 465938c8a9a5SSteve French streamlen = smbConvertToUTF16((__le16 *)file_info->StreamName, 466038c8a9a5SSteve French "::$DATA", 7, conn->local_nls, 0); 466138c8a9a5SSteve French streamlen *= 2; 466238c8a9a5SSteve French file_info->StreamNameLength = cpu_to_le32(streamlen); 466338c8a9a5SSteve French file_info->StreamSize = cpu_to_le64(stat.size); 466438c8a9a5SSteve French file_info->StreamAllocationSize = cpu_to_le64(stat.blocks << 9); 466538c8a9a5SSteve French nbytes += sizeof(struct smb2_file_stream_info) + streamlen; 466638c8a9a5SSteve French } 466738c8a9a5SSteve French 466838c8a9a5SSteve French /* last entry offset should be 0 */ 466938c8a9a5SSteve French file_info->NextEntryOffset = 0; 467038c8a9a5SSteve French kvfree(xattr_list); 467138c8a9a5SSteve French 467238c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(nbytes); 467338c8a9a5SSteve French } 467438c8a9a5SSteve French 467538c8a9a5SSteve French static void get_file_internal_info(struct smb2_query_info_rsp *rsp, 467638c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 467738c8a9a5SSteve French { 467838c8a9a5SSteve French struct smb2_file_internal_info *file_info; 467938c8a9a5SSteve French struct kstat stat; 468038c8a9a5SSteve French 46810d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, 46820d72b928SJeff Layton file_inode(fp->filp), &stat); 468338c8a9a5SSteve French file_info = (struct smb2_file_internal_info *)rsp->Buffer; 468438c8a9a5SSteve French file_info->IndexNumber = cpu_to_le64(stat.ino); 468538c8a9a5SSteve French rsp->OutputBufferLength = 468638c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_internal_info)); 468738c8a9a5SSteve French } 468838c8a9a5SSteve French 468938c8a9a5SSteve French static int get_file_network_open_info(struct smb2_query_info_rsp *rsp, 469038c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 469138c8a9a5SSteve French { 469238c8a9a5SSteve French struct smb2_file_ntwrk_info *file_info; 469338c8a9a5SSteve French struct inode *inode; 469438c8a9a5SSteve French struct kstat stat; 469538c8a9a5SSteve French u64 time; 469638c8a9a5SSteve French 469738c8a9a5SSteve French if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { 469838c8a9a5SSteve French pr_err("no right to read the attributes : 0x%x\n", 469938c8a9a5SSteve French fp->daccess); 470038c8a9a5SSteve French return -EACCES; 470138c8a9a5SSteve French } 470238c8a9a5SSteve French 470338c8a9a5SSteve French file_info = (struct smb2_file_ntwrk_info *)rsp->Buffer; 470438c8a9a5SSteve French 470538c8a9a5SSteve French inode = file_inode(fp->filp); 47060d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, inode, &stat); 470738c8a9a5SSteve French 470838c8a9a5SSteve French file_info->CreationTime = cpu_to_le64(fp->create_time); 470938c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.atime); 471038c8a9a5SSteve French file_info->LastAccessTime = cpu_to_le64(time); 471138c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.mtime); 471238c8a9a5SSteve French file_info->LastWriteTime = cpu_to_le64(time); 471338c8a9a5SSteve French time = ksmbd_UnixTimeToNT(stat.ctime); 471438c8a9a5SSteve French file_info->ChangeTime = cpu_to_le64(time); 471538c8a9a5SSteve French file_info->Attributes = fp->f_ci->m_fattr; 471638c8a9a5SSteve French file_info->AllocationSize = 47176cc2268fSNamjae Jeon cpu_to_le64(inode->i_blocks << 9); 471838c8a9a5SSteve French file_info->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size); 471938c8a9a5SSteve French file_info->Reserved = cpu_to_le32(0); 472038c8a9a5SSteve French rsp->OutputBufferLength = 472138c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_ntwrk_info)); 472238c8a9a5SSteve French return 0; 472338c8a9a5SSteve French } 472438c8a9a5SSteve French 472538c8a9a5SSteve French static void get_file_ea_info(struct smb2_query_info_rsp *rsp, void *rsp_org) 472638c8a9a5SSteve French { 472738c8a9a5SSteve French struct smb2_file_ea_info *file_info; 472838c8a9a5SSteve French 472938c8a9a5SSteve French file_info = (struct smb2_file_ea_info *)rsp->Buffer; 473038c8a9a5SSteve French file_info->EASize = 0; 473138c8a9a5SSteve French rsp->OutputBufferLength = 473238c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_ea_info)); 473338c8a9a5SSteve French } 473438c8a9a5SSteve French 473538c8a9a5SSteve French static void get_file_position_info(struct smb2_query_info_rsp *rsp, 473638c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 473738c8a9a5SSteve French { 473838c8a9a5SSteve French struct smb2_file_pos_info *file_info; 473938c8a9a5SSteve French 474038c8a9a5SSteve French file_info = (struct smb2_file_pos_info *)rsp->Buffer; 474138c8a9a5SSteve French file_info->CurrentByteOffset = cpu_to_le64(fp->filp->f_pos); 474238c8a9a5SSteve French rsp->OutputBufferLength = 474338c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_pos_info)); 474438c8a9a5SSteve French } 474538c8a9a5SSteve French 474638c8a9a5SSteve French static void get_file_mode_info(struct smb2_query_info_rsp *rsp, 474738c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 474838c8a9a5SSteve French { 474938c8a9a5SSteve French struct smb2_file_mode_info *file_info; 475038c8a9a5SSteve French 475138c8a9a5SSteve French file_info = (struct smb2_file_mode_info *)rsp->Buffer; 475238c8a9a5SSteve French file_info->Mode = fp->coption & FILE_MODE_INFO_MASK; 475338c8a9a5SSteve French rsp->OutputBufferLength = 475438c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_mode_info)); 475538c8a9a5SSteve French } 475638c8a9a5SSteve French 475738c8a9a5SSteve French static void get_file_compression_info(struct smb2_query_info_rsp *rsp, 475838c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 475938c8a9a5SSteve French { 476038c8a9a5SSteve French struct smb2_file_comp_info *file_info; 476138c8a9a5SSteve French struct kstat stat; 476238c8a9a5SSteve French 47630d72b928SJeff Layton generic_fillattr(file_mnt_idmap(fp->filp), STATX_BASIC_STATS, 47640d72b928SJeff Layton file_inode(fp->filp), &stat); 476538c8a9a5SSteve French 476638c8a9a5SSteve French file_info = (struct smb2_file_comp_info *)rsp->Buffer; 476738c8a9a5SSteve French file_info->CompressedFileSize = cpu_to_le64(stat.blocks << 9); 476838c8a9a5SSteve French file_info->CompressionFormat = COMPRESSION_FORMAT_NONE; 476938c8a9a5SSteve French file_info->CompressionUnitShift = 0; 477038c8a9a5SSteve French file_info->ChunkShift = 0; 477138c8a9a5SSteve French file_info->ClusterShift = 0; 477238c8a9a5SSteve French memset(&file_info->Reserved[0], 0, 3); 477338c8a9a5SSteve French 477438c8a9a5SSteve French rsp->OutputBufferLength = 477538c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_comp_info)); 477638c8a9a5SSteve French } 477738c8a9a5SSteve French 477838c8a9a5SSteve French static int get_file_attribute_tag_info(struct smb2_query_info_rsp *rsp, 477938c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 478038c8a9a5SSteve French { 478138c8a9a5SSteve French struct smb2_file_attr_tag_info *file_info; 478238c8a9a5SSteve French 478338c8a9a5SSteve French if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) { 478438c8a9a5SSteve French pr_err("no right to read the attributes : 0x%x\n", 478538c8a9a5SSteve French fp->daccess); 478638c8a9a5SSteve French return -EACCES; 478738c8a9a5SSteve French } 478838c8a9a5SSteve French 478938c8a9a5SSteve French file_info = (struct smb2_file_attr_tag_info *)rsp->Buffer; 479038c8a9a5SSteve French file_info->FileAttributes = fp->f_ci->m_fattr; 479138c8a9a5SSteve French file_info->ReparseTag = 0; 479238c8a9a5SSteve French rsp->OutputBufferLength = 479338c8a9a5SSteve French cpu_to_le32(sizeof(struct smb2_file_attr_tag_info)); 479438c8a9a5SSteve French return 0; 479538c8a9a5SSteve French } 479638c8a9a5SSteve French 4797e2b76ab8SNamjae Jeon static void find_file_posix_info(struct smb2_query_info_rsp *rsp, 479838c8a9a5SSteve French struct ksmbd_file *fp, void *rsp_org) 479938c8a9a5SSteve French { 480038c8a9a5SSteve French struct smb311_posix_qinfo *file_info; 480138c8a9a5SSteve French struct inode *inode = file_inode(fp->filp); 480238c8a9a5SSteve French struct mnt_idmap *idmap = file_mnt_idmap(fp->filp); 480338c8a9a5SSteve French vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode); 480438c8a9a5SSteve French vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode); 480538c8a9a5SSteve French u64 time; 480638c8a9a5SSteve French int out_buf_len = sizeof(struct smb311_posix_qinfo) + 32; 480738c8a9a5SSteve French 480838c8a9a5SSteve French file_info = (struct smb311_posix_qinfo *)rsp->Buffer; 480938c8a9a5SSteve French file_info->CreationTime = cpu_to_le64(fp->create_time); 481038c8a9a5SSteve French time = ksmbd_UnixTimeToNT(inode->i_atime); 481138c8a9a5SSteve French file_info->LastAccessTime = cpu_to_le64(time); 481238c8a9a5SSteve French time = ksmbd_UnixTimeToNT(inode->i_mtime); 481338c8a9a5SSteve French file_info->LastWriteTime = cpu_to_le64(time); 481494487653SJeff Layton time = ksmbd_UnixTimeToNT(inode_get_ctime(inode)); 481538c8a9a5SSteve French file_info->ChangeTime = cpu_to_le64(time); 481638c8a9a5SSteve French file_info->DosAttributes = fp->f_ci->m_fattr; 481738c8a9a5SSteve French file_info->Inode = cpu_to_le64(inode->i_ino); 481838c8a9a5SSteve French file_info->EndOfFile = cpu_to_le64(inode->i_size); 481938c8a9a5SSteve French file_info->AllocationSize = cpu_to_le64(inode->i_blocks << 9); 482038c8a9a5SSteve French file_info->HardLinks = cpu_to_le32(inode->i_nlink); 482138c8a9a5SSteve French file_info->Mode = cpu_to_le32(inode->i_mode & 0777); 482238c8a9a5SSteve French file_info->DeviceId = cpu_to_le32(inode->i_rdev); 482338c8a9a5SSteve French 482438c8a9a5SSteve French /* 482538c8a9a5SSteve French * Sids(32) contain two sids(Domain sid(16), UNIX group sid(16)). 482638c8a9a5SSteve French * UNIX sid(16) = revision(1) + num_subauth(1) + authority(6) + 482738c8a9a5SSteve French * sub_auth(4 * 1(num_subauth)) + RID(4). 482838c8a9a5SSteve French */ 482938c8a9a5SSteve French id_to_sid(from_kuid_munged(&init_user_ns, vfsuid_into_kuid(vfsuid)), 483038c8a9a5SSteve French SIDUNIX_USER, (struct smb_sid *)&file_info->Sids[0]); 483138c8a9a5SSteve French id_to_sid(from_kgid_munged(&init_user_ns, vfsgid_into_kgid(vfsgid)), 483238c8a9a5SSteve French SIDUNIX_GROUP, (struct smb_sid *)&file_info->Sids[16]); 483338c8a9a5SSteve French 483438c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(out_buf_len); 483538c8a9a5SSteve French } 483638c8a9a5SSteve French 483738c8a9a5SSteve French static int smb2_get_info_file(struct ksmbd_work *work, 483838c8a9a5SSteve French struct smb2_query_info_req *req, 483938c8a9a5SSteve French struct smb2_query_info_rsp *rsp) 484038c8a9a5SSteve French { 484138c8a9a5SSteve French struct ksmbd_file *fp; 484238c8a9a5SSteve French int fileinfoclass = 0; 484338c8a9a5SSteve French int rc = 0; 484438c8a9a5SSteve French unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; 484538c8a9a5SSteve French 484638c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 484738c8a9a5SSteve French KSMBD_SHARE_FLAG_PIPE)) { 484838c8a9a5SSteve French /* smb2 info file called for pipe */ 484938c8a9a5SSteve French return smb2_get_info_file_pipe(work->sess, req, rsp, 485038c8a9a5SSteve French work->response_buf); 485138c8a9a5SSteve French } 485238c8a9a5SSteve French 485338c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) { 485438c8a9a5SSteve French if (!has_file_id(req->VolatileFileId)) { 485538c8a9a5SSteve French ksmbd_debug(SMB, "Compound request set FID = %llu\n", 485638c8a9a5SSteve French work->compound_fid); 485738c8a9a5SSteve French id = work->compound_fid; 485838c8a9a5SSteve French pid = work->compound_pfid; 485938c8a9a5SSteve French } 486038c8a9a5SSteve French } 486138c8a9a5SSteve French 486238c8a9a5SSteve French if (!has_file_id(id)) { 486338c8a9a5SSteve French id = req->VolatileFileId; 486438c8a9a5SSteve French pid = req->PersistentFileId; 486538c8a9a5SSteve French } 486638c8a9a5SSteve French 486738c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, id, pid); 486838c8a9a5SSteve French if (!fp) 486938c8a9a5SSteve French return -ENOENT; 487038c8a9a5SSteve French 487138c8a9a5SSteve French fileinfoclass = req->FileInfoClass; 487238c8a9a5SSteve French 487338c8a9a5SSteve French switch (fileinfoclass) { 487438c8a9a5SSteve French case FILE_ACCESS_INFORMATION: 487538c8a9a5SSteve French get_file_access_info(rsp, fp, work->response_buf); 487638c8a9a5SSteve French break; 487738c8a9a5SSteve French 487838c8a9a5SSteve French case FILE_BASIC_INFORMATION: 487938c8a9a5SSteve French rc = get_file_basic_info(rsp, fp, work->response_buf); 488038c8a9a5SSteve French break; 488138c8a9a5SSteve French 488238c8a9a5SSteve French case FILE_STANDARD_INFORMATION: 488338c8a9a5SSteve French get_file_standard_info(rsp, fp, work->response_buf); 488438c8a9a5SSteve French break; 488538c8a9a5SSteve French 488638c8a9a5SSteve French case FILE_ALIGNMENT_INFORMATION: 488738c8a9a5SSteve French get_file_alignment_info(rsp, work->response_buf); 488838c8a9a5SSteve French break; 488938c8a9a5SSteve French 489038c8a9a5SSteve French case FILE_ALL_INFORMATION: 489138c8a9a5SSteve French rc = get_file_all_info(work, rsp, fp, work->response_buf); 489238c8a9a5SSteve French break; 489338c8a9a5SSteve French 489438c8a9a5SSteve French case FILE_ALTERNATE_NAME_INFORMATION: 489538c8a9a5SSteve French get_file_alternate_info(work, rsp, fp, work->response_buf); 489638c8a9a5SSteve French break; 489738c8a9a5SSteve French 489838c8a9a5SSteve French case FILE_STREAM_INFORMATION: 489938c8a9a5SSteve French get_file_stream_info(work, rsp, fp, work->response_buf); 490038c8a9a5SSteve French break; 490138c8a9a5SSteve French 490238c8a9a5SSteve French case FILE_INTERNAL_INFORMATION: 490338c8a9a5SSteve French get_file_internal_info(rsp, fp, work->response_buf); 490438c8a9a5SSteve French break; 490538c8a9a5SSteve French 490638c8a9a5SSteve French case FILE_NETWORK_OPEN_INFORMATION: 490738c8a9a5SSteve French rc = get_file_network_open_info(rsp, fp, work->response_buf); 490838c8a9a5SSteve French break; 490938c8a9a5SSteve French 491038c8a9a5SSteve French case FILE_EA_INFORMATION: 491138c8a9a5SSteve French get_file_ea_info(rsp, work->response_buf); 491238c8a9a5SSteve French break; 491338c8a9a5SSteve French 491438c8a9a5SSteve French case FILE_FULL_EA_INFORMATION: 491538c8a9a5SSteve French rc = smb2_get_ea(work, fp, req, rsp, work->response_buf); 491638c8a9a5SSteve French break; 491738c8a9a5SSteve French 491838c8a9a5SSteve French case FILE_POSITION_INFORMATION: 491938c8a9a5SSteve French get_file_position_info(rsp, fp, work->response_buf); 492038c8a9a5SSteve French break; 492138c8a9a5SSteve French 492238c8a9a5SSteve French case FILE_MODE_INFORMATION: 492338c8a9a5SSteve French get_file_mode_info(rsp, fp, work->response_buf); 492438c8a9a5SSteve French break; 492538c8a9a5SSteve French 492638c8a9a5SSteve French case FILE_COMPRESSION_INFORMATION: 492738c8a9a5SSteve French get_file_compression_info(rsp, fp, work->response_buf); 492838c8a9a5SSteve French break; 492938c8a9a5SSteve French 493038c8a9a5SSteve French case FILE_ATTRIBUTE_TAG_INFORMATION: 493138c8a9a5SSteve French rc = get_file_attribute_tag_info(rsp, fp, work->response_buf); 493238c8a9a5SSteve French break; 493338c8a9a5SSteve French case SMB_FIND_FILE_POSIX_INFO: 493438c8a9a5SSteve French if (!work->tcon->posix_extensions) { 493538c8a9a5SSteve French pr_err("client doesn't negotiate with SMB3.1.1 POSIX Extensions\n"); 493638c8a9a5SSteve French rc = -EOPNOTSUPP; 493738c8a9a5SSteve French } else { 4938e2b76ab8SNamjae Jeon find_file_posix_info(rsp, fp, work->response_buf); 493938c8a9a5SSteve French } 494038c8a9a5SSteve French break; 494138c8a9a5SSteve French default: 494238c8a9a5SSteve French ksmbd_debug(SMB, "fileinfoclass %d not supported yet\n", 494338c8a9a5SSteve French fileinfoclass); 494438c8a9a5SSteve French rc = -EOPNOTSUPP; 494538c8a9a5SSteve French } 494638c8a9a5SSteve French if (!rc) 494738c8a9a5SSteve French rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), 4948e2b76ab8SNamjae Jeon rsp, work->response_buf); 494938c8a9a5SSteve French ksmbd_fd_put(work, fp); 495038c8a9a5SSteve French return rc; 495138c8a9a5SSteve French } 495238c8a9a5SSteve French 495338c8a9a5SSteve French static int smb2_get_info_filesystem(struct ksmbd_work *work, 495438c8a9a5SSteve French struct smb2_query_info_req *req, 495538c8a9a5SSteve French struct smb2_query_info_rsp *rsp) 495638c8a9a5SSteve French { 495738c8a9a5SSteve French struct ksmbd_session *sess = work->sess; 495838c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 495938c8a9a5SSteve French struct ksmbd_share_config *share = work->tcon->share_conf; 496038c8a9a5SSteve French int fsinfoclass = 0; 496138c8a9a5SSteve French struct kstatfs stfs; 496238c8a9a5SSteve French struct path path; 496338c8a9a5SSteve French int rc = 0, len; 496438c8a9a5SSteve French 496538c8a9a5SSteve French if (!share->path) 496638c8a9a5SSteve French return -EIO; 496738c8a9a5SSteve French 496838c8a9a5SSteve French rc = kern_path(share->path, LOOKUP_NO_SYMLINKS, &path); 496938c8a9a5SSteve French if (rc) { 497038c8a9a5SSteve French pr_err("cannot create vfs path\n"); 497138c8a9a5SSteve French return -EIO; 497238c8a9a5SSteve French } 497338c8a9a5SSteve French 497438c8a9a5SSteve French rc = vfs_statfs(&path, &stfs); 497538c8a9a5SSteve French if (rc) { 497638c8a9a5SSteve French pr_err("cannot do stat of path %s\n", share->path); 497738c8a9a5SSteve French path_put(&path); 497838c8a9a5SSteve French return -EIO; 497938c8a9a5SSteve French } 498038c8a9a5SSteve French 498138c8a9a5SSteve French fsinfoclass = req->FileInfoClass; 498238c8a9a5SSteve French 498338c8a9a5SSteve French switch (fsinfoclass) { 498438c8a9a5SSteve French case FS_DEVICE_INFORMATION: 498538c8a9a5SSteve French { 498638c8a9a5SSteve French struct filesystem_device_info *info; 498738c8a9a5SSteve French 498838c8a9a5SSteve French info = (struct filesystem_device_info *)rsp->Buffer; 498938c8a9a5SSteve French 499038c8a9a5SSteve French info->DeviceType = cpu_to_le32(stfs.f_type); 499138c8a9a5SSteve French info->DeviceCharacteristics = cpu_to_le32(0x00000020); 499238c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(8); 499338c8a9a5SSteve French break; 499438c8a9a5SSteve French } 499538c8a9a5SSteve French case FS_ATTRIBUTE_INFORMATION: 499638c8a9a5SSteve French { 499738c8a9a5SSteve French struct filesystem_attribute_info *info; 499838c8a9a5SSteve French size_t sz; 499938c8a9a5SSteve French 500038c8a9a5SSteve French info = (struct filesystem_attribute_info *)rsp->Buffer; 500138c8a9a5SSteve French info->Attributes = cpu_to_le32(FILE_SUPPORTS_OBJECT_IDS | 500238c8a9a5SSteve French FILE_PERSISTENT_ACLS | 500338c8a9a5SSteve French FILE_UNICODE_ON_DISK | 500438c8a9a5SSteve French FILE_CASE_PRESERVED_NAMES | 500538c8a9a5SSteve French FILE_CASE_SENSITIVE_SEARCH | 500638c8a9a5SSteve French FILE_SUPPORTS_BLOCK_REFCOUNTING); 500738c8a9a5SSteve French 500838c8a9a5SSteve French info->Attributes |= cpu_to_le32(server_conf.share_fake_fscaps); 500938c8a9a5SSteve French 501038c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 501138c8a9a5SSteve French KSMBD_SHARE_FLAG_STREAMS)) 501238c8a9a5SSteve French info->Attributes |= cpu_to_le32(FILE_NAMED_STREAMS); 501338c8a9a5SSteve French 501438c8a9a5SSteve French info->MaxPathNameComponentLength = cpu_to_le32(stfs.f_namelen); 501538c8a9a5SSteve French len = smbConvertToUTF16((__le16 *)info->FileSystemName, 501638c8a9a5SSteve French "NTFS", PATH_MAX, conn->local_nls, 0); 501738c8a9a5SSteve French len = len * 2; 501838c8a9a5SSteve French info->FileSystemNameLen = cpu_to_le32(len); 501938c8a9a5SSteve French sz = sizeof(struct filesystem_attribute_info) - 2 + len; 502038c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(sz); 502138c8a9a5SSteve French break; 502238c8a9a5SSteve French } 502338c8a9a5SSteve French case FS_VOLUME_INFORMATION: 502438c8a9a5SSteve French { 502538c8a9a5SSteve French struct filesystem_vol_info *info; 502638c8a9a5SSteve French size_t sz; 502738c8a9a5SSteve French unsigned int serial_crc = 0; 502838c8a9a5SSteve French 502938c8a9a5SSteve French info = (struct filesystem_vol_info *)(rsp->Buffer); 503038c8a9a5SSteve French info->VolumeCreationTime = 0; 503138c8a9a5SSteve French serial_crc = crc32_le(serial_crc, share->name, 503238c8a9a5SSteve French strlen(share->name)); 503338c8a9a5SSteve French serial_crc = crc32_le(serial_crc, share->path, 503438c8a9a5SSteve French strlen(share->path)); 503538c8a9a5SSteve French serial_crc = crc32_le(serial_crc, ksmbd_netbios_name(), 503638c8a9a5SSteve French strlen(ksmbd_netbios_name())); 503738c8a9a5SSteve French /* Taking dummy value of serial number*/ 503838c8a9a5SSteve French info->SerialNumber = cpu_to_le32(serial_crc); 503938c8a9a5SSteve French len = smbConvertToUTF16((__le16 *)info->VolumeLabel, 504038c8a9a5SSteve French share->name, PATH_MAX, 504138c8a9a5SSteve French conn->local_nls, 0); 504238c8a9a5SSteve French len = len * 2; 504338c8a9a5SSteve French info->VolumeLabelSize = cpu_to_le32(len); 504438c8a9a5SSteve French info->Reserved = 0; 504538c8a9a5SSteve French sz = sizeof(struct filesystem_vol_info) - 2 + len; 504638c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(sz); 504738c8a9a5SSteve French break; 504838c8a9a5SSteve French } 504938c8a9a5SSteve French case FS_SIZE_INFORMATION: 505038c8a9a5SSteve French { 505138c8a9a5SSteve French struct filesystem_info *info; 505238c8a9a5SSteve French 505338c8a9a5SSteve French info = (struct filesystem_info *)(rsp->Buffer); 505438c8a9a5SSteve French info->TotalAllocationUnits = cpu_to_le64(stfs.f_blocks); 505538c8a9a5SSteve French info->FreeAllocationUnits = cpu_to_le64(stfs.f_bfree); 505638c8a9a5SSteve French info->SectorsPerAllocationUnit = cpu_to_le32(1); 505738c8a9a5SSteve French info->BytesPerSector = cpu_to_le32(stfs.f_bsize); 505838c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(24); 505938c8a9a5SSteve French break; 506038c8a9a5SSteve French } 506138c8a9a5SSteve French case FS_FULL_SIZE_INFORMATION: 506238c8a9a5SSteve French { 506338c8a9a5SSteve French struct smb2_fs_full_size_info *info; 506438c8a9a5SSteve French 506538c8a9a5SSteve French info = (struct smb2_fs_full_size_info *)(rsp->Buffer); 506638c8a9a5SSteve French info->TotalAllocationUnits = cpu_to_le64(stfs.f_blocks); 506738c8a9a5SSteve French info->CallerAvailableAllocationUnits = 506838c8a9a5SSteve French cpu_to_le64(stfs.f_bavail); 506938c8a9a5SSteve French info->ActualAvailableAllocationUnits = 507038c8a9a5SSteve French cpu_to_le64(stfs.f_bfree); 507138c8a9a5SSteve French info->SectorsPerAllocationUnit = cpu_to_le32(1); 507238c8a9a5SSteve French info->BytesPerSector = cpu_to_le32(stfs.f_bsize); 507338c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(32); 507438c8a9a5SSteve French break; 507538c8a9a5SSteve French } 507638c8a9a5SSteve French case FS_OBJECT_ID_INFORMATION: 507738c8a9a5SSteve French { 507838c8a9a5SSteve French struct object_id_info *info; 507938c8a9a5SSteve French 508038c8a9a5SSteve French info = (struct object_id_info *)(rsp->Buffer); 508138c8a9a5SSteve French 508238c8a9a5SSteve French if (!user_guest(sess->user)) 508338c8a9a5SSteve French memcpy(info->objid, user_passkey(sess->user), 16); 508438c8a9a5SSteve French else 508538c8a9a5SSteve French memset(info->objid, 0, 16); 508638c8a9a5SSteve French 508738c8a9a5SSteve French info->extended_info.magic = cpu_to_le32(EXTENDED_INFO_MAGIC); 508838c8a9a5SSteve French info->extended_info.version = cpu_to_le32(1); 508938c8a9a5SSteve French info->extended_info.release = cpu_to_le32(1); 509038c8a9a5SSteve French info->extended_info.rel_date = 0; 509138c8a9a5SSteve French memcpy(info->extended_info.version_string, "1.1.0", strlen("1.1.0")); 509238c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(64); 509338c8a9a5SSteve French break; 509438c8a9a5SSteve French } 509538c8a9a5SSteve French case FS_SECTOR_SIZE_INFORMATION: 509638c8a9a5SSteve French { 509738c8a9a5SSteve French struct smb3_fs_ss_info *info; 509838c8a9a5SSteve French unsigned int sector_size = 509938c8a9a5SSteve French min_t(unsigned int, path.mnt->mnt_sb->s_blocksize, 4096); 510038c8a9a5SSteve French 510138c8a9a5SSteve French info = (struct smb3_fs_ss_info *)(rsp->Buffer); 510238c8a9a5SSteve French 510338c8a9a5SSteve French info->LogicalBytesPerSector = cpu_to_le32(sector_size); 510438c8a9a5SSteve French info->PhysicalBytesPerSectorForAtomicity = 510538c8a9a5SSteve French cpu_to_le32(sector_size); 510638c8a9a5SSteve French info->PhysicalBytesPerSectorForPerf = cpu_to_le32(sector_size); 510738c8a9a5SSteve French info->FSEffPhysicalBytesPerSectorForAtomicity = 510838c8a9a5SSteve French cpu_to_le32(sector_size); 510938c8a9a5SSteve French info->Flags = cpu_to_le32(SSINFO_FLAGS_ALIGNED_DEVICE | 511038c8a9a5SSteve French SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE); 511138c8a9a5SSteve French info->ByteOffsetForSectorAlignment = 0; 511238c8a9a5SSteve French info->ByteOffsetForPartitionAlignment = 0; 511338c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(28); 511438c8a9a5SSteve French break; 511538c8a9a5SSteve French } 511638c8a9a5SSteve French case FS_CONTROL_INFORMATION: 511738c8a9a5SSteve French { 511838c8a9a5SSteve French /* 511938c8a9a5SSteve French * TODO : The current implementation is based on 512038c8a9a5SSteve French * test result with win7(NTFS) server. It's need to 512138c8a9a5SSteve French * modify this to get valid Quota values 512238c8a9a5SSteve French * from Linux kernel 512338c8a9a5SSteve French */ 512438c8a9a5SSteve French struct smb2_fs_control_info *info; 512538c8a9a5SSteve French 512638c8a9a5SSteve French info = (struct smb2_fs_control_info *)(rsp->Buffer); 512738c8a9a5SSteve French info->FreeSpaceStartFiltering = 0; 512838c8a9a5SSteve French info->FreeSpaceThreshold = 0; 512938c8a9a5SSteve French info->FreeSpaceStopFiltering = 0; 513038c8a9a5SSteve French info->DefaultQuotaThreshold = cpu_to_le64(SMB2_NO_FID); 513138c8a9a5SSteve French info->DefaultQuotaLimit = cpu_to_le64(SMB2_NO_FID); 513238c8a9a5SSteve French info->Padding = 0; 513338c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(48); 513438c8a9a5SSteve French break; 513538c8a9a5SSteve French } 513638c8a9a5SSteve French case FS_POSIX_INFORMATION: 513738c8a9a5SSteve French { 513838c8a9a5SSteve French struct filesystem_posix_info *info; 513938c8a9a5SSteve French 514038c8a9a5SSteve French if (!work->tcon->posix_extensions) { 514138c8a9a5SSteve French pr_err("client doesn't negotiate with SMB3.1.1 POSIX Extensions\n"); 514238c8a9a5SSteve French rc = -EOPNOTSUPP; 514338c8a9a5SSteve French } else { 514438c8a9a5SSteve French info = (struct filesystem_posix_info *)(rsp->Buffer); 514538c8a9a5SSteve French info->OptimalTransferSize = cpu_to_le32(stfs.f_bsize); 514638c8a9a5SSteve French info->BlockSize = cpu_to_le32(stfs.f_bsize); 514738c8a9a5SSteve French info->TotalBlocks = cpu_to_le64(stfs.f_blocks); 514838c8a9a5SSteve French info->BlocksAvail = cpu_to_le64(stfs.f_bfree); 514938c8a9a5SSteve French info->UserBlocksAvail = cpu_to_le64(stfs.f_bavail); 515038c8a9a5SSteve French info->TotalFileNodes = cpu_to_le64(stfs.f_files); 515138c8a9a5SSteve French info->FreeFileNodes = cpu_to_le64(stfs.f_ffree); 515238c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(56); 515338c8a9a5SSteve French } 515438c8a9a5SSteve French break; 515538c8a9a5SSteve French } 515638c8a9a5SSteve French default: 515738c8a9a5SSteve French path_put(&path); 515838c8a9a5SSteve French return -EOPNOTSUPP; 515938c8a9a5SSteve French } 516038c8a9a5SSteve French rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength), 5161e2b76ab8SNamjae Jeon rsp, work->response_buf); 516238c8a9a5SSteve French path_put(&path); 516338c8a9a5SSteve French return rc; 516438c8a9a5SSteve French } 516538c8a9a5SSteve French 516638c8a9a5SSteve French static int smb2_get_info_sec(struct ksmbd_work *work, 516738c8a9a5SSteve French struct smb2_query_info_req *req, 516838c8a9a5SSteve French struct smb2_query_info_rsp *rsp) 516938c8a9a5SSteve French { 517038c8a9a5SSteve French struct ksmbd_file *fp; 517138c8a9a5SSteve French struct mnt_idmap *idmap; 517238c8a9a5SSteve French struct smb_ntsd *pntsd = (struct smb_ntsd *)rsp->Buffer, *ppntsd = NULL; 517338c8a9a5SSteve French struct smb_fattr fattr = {{0}}; 517438c8a9a5SSteve French struct inode *inode; 517538c8a9a5SSteve French __u32 secdesclen = 0; 517638c8a9a5SSteve French unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; 517738c8a9a5SSteve French int addition_info = le32_to_cpu(req->AdditionalInformation); 517838c8a9a5SSteve French int rc = 0, ppntsd_size = 0; 517938c8a9a5SSteve French 518038c8a9a5SSteve French if (addition_info & ~(OWNER_SECINFO | GROUP_SECINFO | DACL_SECINFO | 518138c8a9a5SSteve French PROTECTED_DACL_SECINFO | 518238c8a9a5SSteve French UNPROTECTED_DACL_SECINFO)) { 518338c8a9a5SSteve French ksmbd_debug(SMB, "Unsupported addition info: 0x%x)\n", 518438c8a9a5SSteve French addition_info); 518538c8a9a5SSteve French 518638c8a9a5SSteve French pntsd->revision = cpu_to_le16(1); 518738c8a9a5SSteve French pntsd->type = cpu_to_le16(SELF_RELATIVE | DACL_PROTECTED); 518838c8a9a5SSteve French pntsd->osidoffset = 0; 518938c8a9a5SSteve French pntsd->gsidoffset = 0; 519038c8a9a5SSteve French pntsd->sacloffset = 0; 519138c8a9a5SSteve French pntsd->dacloffset = 0; 519238c8a9a5SSteve French 519338c8a9a5SSteve French secdesclen = sizeof(struct smb_ntsd); 519438c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(secdesclen); 519538c8a9a5SSteve French 519638c8a9a5SSteve French return 0; 519738c8a9a5SSteve French } 519838c8a9a5SSteve French 519938c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) { 520038c8a9a5SSteve French if (!has_file_id(req->VolatileFileId)) { 520138c8a9a5SSteve French ksmbd_debug(SMB, "Compound request set FID = %llu\n", 520238c8a9a5SSteve French work->compound_fid); 520338c8a9a5SSteve French id = work->compound_fid; 520438c8a9a5SSteve French pid = work->compound_pfid; 520538c8a9a5SSteve French } 520638c8a9a5SSteve French } 520738c8a9a5SSteve French 520838c8a9a5SSteve French if (!has_file_id(id)) { 520938c8a9a5SSteve French id = req->VolatileFileId; 521038c8a9a5SSteve French pid = req->PersistentFileId; 521138c8a9a5SSteve French } 521238c8a9a5SSteve French 521338c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, id, pid); 521438c8a9a5SSteve French if (!fp) 521538c8a9a5SSteve French return -ENOENT; 521638c8a9a5SSteve French 521738c8a9a5SSteve French idmap = file_mnt_idmap(fp->filp); 521838c8a9a5SSteve French inode = file_inode(fp->filp); 521938c8a9a5SSteve French ksmbd_acls_fattr(&fattr, idmap, inode); 522038c8a9a5SSteve French 522138c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 522238c8a9a5SSteve French KSMBD_SHARE_FLAG_ACL_XATTR)) 522338c8a9a5SSteve French ppntsd_size = ksmbd_vfs_get_sd_xattr(work->conn, idmap, 522438c8a9a5SSteve French fp->filp->f_path.dentry, 522538c8a9a5SSteve French &ppntsd); 522638c8a9a5SSteve French 522738c8a9a5SSteve French /* Check if sd buffer size exceeds response buffer size */ 522838c8a9a5SSteve French if (smb2_resp_buf_len(work, 8) > ppntsd_size) 522938c8a9a5SSteve French rc = build_sec_desc(idmap, pntsd, ppntsd, ppntsd_size, 523038c8a9a5SSteve French addition_info, &secdesclen, &fattr); 523138c8a9a5SSteve French posix_acl_release(fattr.cf_acls); 523238c8a9a5SSteve French posix_acl_release(fattr.cf_dacls); 523338c8a9a5SSteve French kfree(ppntsd); 523438c8a9a5SSteve French ksmbd_fd_put(work, fp); 523538c8a9a5SSteve French if (rc) 523638c8a9a5SSteve French return rc; 523738c8a9a5SSteve French 523838c8a9a5SSteve French rsp->OutputBufferLength = cpu_to_le32(secdesclen); 523938c8a9a5SSteve French return 0; 524038c8a9a5SSteve French } 524138c8a9a5SSteve French 524238c8a9a5SSteve French /** 524338c8a9a5SSteve French * smb2_query_info() - handler for smb2 query info command 524438c8a9a5SSteve French * @work: smb work containing query info request buffer 524538c8a9a5SSteve French * 524638c8a9a5SSteve French * Return: 0 on success, otherwise error 524738c8a9a5SSteve French */ 524838c8a9a5SSteve French int smb2_query_info(struct ksmbd_work *work) 524938c8a9a5SSteve French { 525038c8a9a5SSteve French struct smb2_query_info_req *req; 525138c8a9a5SSteve French struct smb2_query_info_rsp *rsp; 525238c8a9a5SSteve French int rc = 0; 525338c8a9a5SSteve French 525438c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 525538c8a9a5SSteve French 525638c8a9a5SSteve French ksmbd_debug(SMB, "GOT query info request\n"); 525738c8a9a5SSteve French 525838c8a9a5SSteve French switch (req->InfoType) { 525938c8a9a5SSteve French case SMB2_O_INFO_FILE: 526038c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n"); 526138c8a9a5SSteve French rc = smb2_get_info_file(work, req, rsp); 526238c8a9a5SSteve French break; 526338c8a9a5SSteve French case SMB2_O_INFO_FILESYSTEM: 526438c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILESYSTEM\n"); 526538c8a9a5SSteve French rc = smb2_get_info_filesystem(work, req, rsp); 526638c8a9a5SSteve French break; 526738c8a9a5SSteve French case SMB2_O_INFO_SECURITY: 526838c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_SECURITY\n"); 526938c8a9a5SSteve French rc = smb2_get_info_sec(work, req, rsp); 527038c8a9a5SSteve French break; 527138c8a9a5SSteve French default: 527238c8a9a5SSteve French ksmbd_debug(SMB, "InfoType %d not supported yet\n", 527338c8a9a5SSteve French req->InfoType); 527438c8a9a5SSteve French rc = -EOPNOTSUPP; 527538c8a9a5SSteve French } 527638c8a9a5SSteve French 5277e2b76ab8SNamjae Jeon if (!rc) { 5278e2b76ab8SNamjae Jeon rsp->StructureSize = cpu_to_le16(9); 5279e2b76ab8SNamjae Jeon rsp->OutputBufferOffset = cpu_to_le16(72); 5280e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, 5281e2b76ab8SNamjae Jeon offsetof(struct smb2_query_info_rsp, Buffer) + 5282e2b76ab8SNamjae Jeon le32_to_cpu(rsp->OutputBufferLength)); 5283e2b76ab8SNamjae Jeon } 5284e2b76ab8SNamjae Jeon 528538c8a9a5SSteve French if (rc < 0) { 528638c8a9a5SSteve French if (rc == -EACCES) 528738c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 528838c8a9a5SSteve French else if (rc == -ENOENT) 528938c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 529038c8a9a5SSteve French else if (rc == -EIO) 529138c8a9a5SSteve French rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; 5292e2b76ab8SNamjae Jeon else if (rc == -ENOMEM) 5293e2b76ab8SNamjae Jeon rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES; 529438c8a9a5SSteve French else if (rc == -EOPNOTSUPP || rsp->hdr.Status == 0) 529538c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_INFO_CLASS; 529638c8a9a5SSteve French smb2_set_err_rsp(work); 529738c8a9a5SSteve French 529838c8a9a5SSteve French ksmbd_debug(SMB, "error while processing smb2 query rc = %d\n", 529938c8a9a5SSteve French rc); 530038c8a9a5SSteve French return rc; 530138c8a9a5SSteve French } 530238c8a9a5SSteve French return 0; 530338c8a9a5SSteve French } 530438c8a9a5SSteve French 530538c8a9a5SSteve French /** 530638c8a9a5SSteve French * smb2_close_pipe() - handler for closing IPC pipe 530738c8a9a5SSteve French * @work: smb work containing close request buffer 530838c8a9a5SSteve French * 530938c8a9a5SSteve French * Return: 0 531038c8a9a5SSteve French */ 531138c8a9a5SSteve French static noinline int smb2_close_pipe(struct ksmbd_work *work) 531238c8a9a5SSteve French { 531338c8a9a5SSteve French u64 id; 53147b7d709eSNamjae Jeon struct smb2_close_req *req; 53157b7d709eSNamjae Jeon struct smb2_close_rsp *rsp; 53167b7d709eSNamjae Jeon 53177b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 531838c8a9a5SSteve French 531938c8a9a5SSteve French id = req->VolatileFileId; 532038c8a9a5SSteve French ksmbd_session_rpc_close(work->sess, id); 532138c8a9a5SSteve French 532238c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(60); 532338c8a9a5SSteve French rsp->Flags = 0; 532438c8a9a5SSteve French rsp->Reserved = 0; 532538c8a9a5SSteve French rsp->CreationTime = 0; 532638c8a9a5SSteve French rsp->LastAccessTime = 0; 532738c8a9a5SSteve French rsp->LastWriteTime = 0; 532838c8a9a5SSteve French rsp->ChangeTime = 0; 532938c8a9a5SSteve French rsp->AllocationSize = 0; 533038c8a9a5SSteve French rsp->EndOfFile = 0; 533138c8a9a5SSteve French rsp->Attributes = 0; 5332e2b76ab8SNamjae Jeon 5333e2b76ab8SNamjae Jeon return ksmbd_iov_pin_rsp(work, (void *)rsp, 5334e2b76ab8SNamjae Jeon sizeof(struct smb2_close_rsp)); 533538c8a9a5SSteve French } 533638c8a9a5SSteve French 533738c8a9a5SSteve French /** 533838c8a9a5SSteve French * smb2_close() - handler for smb2 close file command 533938c8a9a5SSteve French * @work: smb work containing close request buffer 534038c8a9a5SSteve French * 534138c8a9a5SSteve French * Return: 0 534238c8a9a5SSteve French */ 534338c8a9a5SSteve French int smb2_close(struct ksmbd_work *work) 534438c8a9a5SSteve French { 534538c8a9a5SSteve French u64 volatile_id = KSMBD_NO_FID; 534638c8a9a5SSteve French u64 sess_id; 534738c8a9a5SSteve French struct smb2_close_req *req; 534838c8a9a5SSteve French struct smb2_close_rsp *rsp; 534938c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 535038c8a9a5SSteve French struct ksmbd_file *fp; 535138c8a9a5SSteve French struct inode *inode; 535238c8a9a5SSteve French u64 time; 535338c8a9a5SSteve French int err = 0; 535438c8a9a5SSteve French 535538c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 535638c8a9a5SSteve French 535738c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 535838c8a9a5SSteve French KSMBD_SHARE_FLAG_PIPE)) { 535938c8a9a5SSteve French ksmbd_debug(SMB, "IPC pipe close request\n"); 536038c8a9a5SSteve French return smb2_close_pipe(work); 536138c8a9a5SSteve French } 536238c8a9a5SSteve French 536338c8a9a5SSteve French sess_id = le64_to_cpu(req->hdr.SessionId); 536438c8a9a5SSteve French if (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS) 536538c8a9a5SSteve French sess_id = work->compound_sid; 536638c8a9a5SSteve French 536738c8a9a5SSteve French work->compound_sid = 0; 536838c8a9a5SSteve French if (check_session_id(conn, sess_id)) { 536938c8a9a5SSteve French work->compound_sid = sess_id; 537038c8a9a5SSteve French } else { 537138c8a9a5SSteve French rsp->hdr.Status = STATUS_USER_SESSION_DELETED; 537238c8a9a5SSteve French if (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS) 537338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 537438c8a9a5SSteve French err = -EBADF; 537538c8a9a5SSteve French goto out; 537638c8a9a5SSteve French } 537738c8a9a5SSteve French 537838c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off && 537938c8a9a5SSteve French !has_file_id(req->VolatileFileId)) { 538038c8a9a5SSteve French if (!has_file_id(work->compound_fid)) { 538138c8a9a5SSteve French /* file already closed, return FILE_CLOSED */ 538238c8a9a5SSteve French ksmbd_debug(SMB, "file already closed\n"); 538338c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 538438c8a9a5SSteve French err = -EBADF; 538538c8a9a5SSteve French goto out; 538638c8a9a5SSteve French } else { 538738c8a9a5SSteve French ksmbd_debug(SMB, 538838c8a9a5SSteve French "Compound request set FID = %llu:%llu\n", 538938c8a9a5SSteve French work->compound_fid, 539038c8a9a5SSteve French work->compound_pfid); 539138c8a9a5SSteve French volatile_id = work->compound_fid; 539238c8a9a5SSteve French 539338c8a9a5SSteve French /* file closed, stored id is not valid anymore */ 539438c8a9a5SSteve French work->compound_fid = KSMBD_NO_FID; 539538c8a9a5SSteve French work->compound_pfid = KSMBD_NO_FID; 539638c8a9a5SSteve French } 539738c8a9a5SSteve French } else { 539838c8a9a5SSteve French volatile_id = req->VolatileFileId; 539938c8a9a5SSteve French } 540038c8a9a5SSteve French ksmbd_debug(SMB, "volatile_id = %llu\n", volatile_id); 540138c8a9a5SSteve French 540238c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(60); 540338c8a9a5SSteve French rsp->Reserved = 0; 540438c8a9a5SSteve French 540538c8a9a5SSteve French if (req->Flags == SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB) { 540638c8a9a5SSteve French fp = ksmbd_lookup_fd_fast(work, volatile_id); 540738c8a9a5SSteve French if (!fp) { 540838c8a9a5SSteve French err = -ENOENT; 540938c8a9a5SSteve French goto out; 541038c8a9a5SSteve French } 541138c8a9a5SSteve French 541238c8a9a5SSteve French inode = file_inode(fp->filp); 541338c8a9a5SSteve French rsp->Flags = SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB; 541438c8a9a5SSteve French rsp->AllocationSize = S_ISDIR(inode->i_mode) ? 0 : 541538c8a9a5SSteve French cpu_to_le64(inode->i_blocks << 9); 541638c8a9a5SSteve French rsp->EndOfFile = cpu_to_le64(inode->i_size); 541738c8a9a5SSteve French rsp->Attributes = fp->f_ci->m_fattr; 541838c8a9a5SSteve French rsp->CreationTime = cpu_to_le64(fp->create_time); 541938c8a9a5SSteve French time = ksmbd_UnixTimeToNT(inode->i_atime); 542038c8a9a5SSteve French rsp->LastAccessTime = cpu_to_le64(time); 542138c8a9a5SSteve French time = ksmbd_UnixTimeToNT(inode->i_mtime); 542238c8a9a5SSteve French rsp->LastWriteTime = cpu_to_le64(time); 542394487653SJeff Layton time = ksmbd_UnixTimeToNT(inode_get_ctime(inode)); 542438c8a9a5SSteve French rsp->ChangeTime = cpu_to_le64(time); 542538c8a9a5SSteve French ksmbd_fd_put(work, fp); 542638c8a9a5SSteve French } else { 542738c8a9a5SSteve French rsp->Flags = 0; 542838c8a9a5SSteve French rsp->AllocationSize = 0; 542938c8a9a5SSteve French rsp->EndOfFile = 0; 543038c8a9a5SSteve French rsp->Attributes = 0; 543138c8a9a5SSteve French rsp->CreationTime = 0; 543238c8a9a5SSteve French rsp->LastAccessTime = 0; 543338c8a9a5SSteve French rsp->LastWriteTime = 0; 543438c8a9a5SSteve French rsp->ChangeTime = 0; 543538c8a9a5SSteve French } 543638c8a9a5SSteve French 543738c8a9a5SSteve French err = ksmbd_close_fd(work, volatile_id); 543838c8a9a5SSteve French out: 5439e2b76ab8SNamjae Jeon if (!err) 5440e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, (void *)rsp, 5441e2b76ab8SNamjae Jeon sizeof(struct smb2_close_rsp)); 5442e2b76ab8SNamjae Jeon 544338c8a9a5SSteve French if (err) { 544438c8a9a5SSteve French if (rsp->hdr.Status == 0) 544538c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 544638c8a9a5SSteve French smb2_set_err_rsp(work); 544738c8a9a5SSteve French } 544838c8a9a5SSteve French 5449e2b76ab8SNamjae Jeon return err; 545038c8a9a5SSteve French } 545138c8a9a5SSteve French 545238c8a9a5SSteve French /** 545338c8a9a5SSteve French * smb2_echo() - handler for smb2 echo(ping) command 545438c8a9a5SSteve French * @work: smb work containing echo request buffer 545538c8a9a5SSteve French * 545638c8a9a5SSteve French * Return: 0 545738c8a9a5SSteve French */ 545838c8a9a5SSteve French int smb2_echo(struct ksmbd_work *work) 545938c8a9a5SSteve French { 546038c8a9a5SSteve French struct smb2_echo_rsp *rsp = smb2_get_msg(work->response_buf); 546138c8a9a5SSteve French 54627b7d709eSNamjae Jeon if (work->next_smb2_rcv_hdr_off) 54637b7d709eSNamjae Jeon rsp = ksmbd_resp_buf_next(work); 54647b7d709eSNamjae Jeon 546538c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(4); 546638c8a9a5SSteve French rsp->Reserved = 0; 5467e2b76ab8SNamjae Jeon return ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_echo_rsp)); 546838c8a9a5SSteve French } 546938c8a9a5SSteve French 547038c8a9a5SSteve French static int smb2_rename(struct ksmbd_work *work, 547138c8a9a5SSteve French struct ksmbd_file *fp, 547238c8a9a5SSteve French struct smb2_file_rename_info *file_info, 547338c8a9a5SSteve French struct nls_table *local_nls) 547438c8a9a5SSteve French { 547538c8a9a5SSteve French struct ksmbd_share_config *share = fp->tcon->share_conf; 547638c8a9a5SSteve French char *new_name = NULL; 547738c8a9a5SSteve French int rc, flags = 0; 547838c8a9a5SSteve French 547938c8a9a5SSteve French ksmbd_debug(SMB, "setting FILE_RENAME_INFO\n"); 548038c8a9a5SSteve French new_name = smb2_get_name(file_info->FileName, 548138c8a9a5SSteve French le32_to_cpu(file_info->FileNameLength), 548238c8a9a5SSteve French local_nls); 548338c8a9a5SSteve French if (IS_ERR(new_name)) 548438c8a9a5SSteve French return PTR_ERR(new_name); 548538c8a9a5SSteve French 548638c8a9a5SSteve French if (strchr(new_name, ':')) { 548738c8a9a5SSteve French int s_type; 548838c8a9a5SSteve French char *xattr_stream_name, *stream_name = NULL; 548938c8a9a5SSteve French size_t xattr_stream_size; 549038c8a9a5SSteve French int len; 549138c8a9a5SSteve French 549238c8a9a5SSteve French rc = parse_stream_name(new_name, &stream_name, &s_type); 549338c8a9a5SSteve French if (rc < 0) 549438c8a9a5SSteve French goto out; 549538c8a9a5SSteve French 549638c8a9a5SSteve French len = strlen(new_name); 549738c8a9a5SSteve French if (len > 0 && new_name[len - 1] != '/') { 549838c8a9a5SSteve French pr_err("not allow base filename in rename\n"); 549938c8a9a5SSteve French rc = -ESHARE; 550038c8a9a5SSteve French goto out; 550138c8a9a5SSteve French } 550238c8a9a5SSteve French 550338c8a9a5SSteve French rc = ksmbd_vfs_xattr_stream_name(stream_name, 550438c8a9a5SSteve French &xattr_stream_name, 550538c8a9a5SSteve French &xattr_stream_size, 550638c8a9a5SSteve French s_type); 550738c8a9a5SSteve French if (rc) 550838c8a9a5SSteve French goto out; 550938c8a9a5SSteve French 551038c8a9a5SSteve French rc = ksmbd_vfs_setxattr(file_mnt_idmap(fp->filp), 551140b268d3SNamjae Jeon &fp->filp->f_path, 551238c8a9a5SSteve French xattr_stream_name, 551338c8a9a5SSteve French NULL, 0, 0); 551438c8a9a5SSteve French if (rc < 0) { 551538c8a9a5SSteve French pr_err("failed to store stream name in xattr: %d\n", 551638c8a9a5SSteve French rc); 551738c8a9a5SSteve French rc = -EINVAL; 551838c8a9a5SSteve French goto out; 551938c8a9a5SSteve French } 552038c8a9a5SSteve French 552138c8a9a5SSteve French goto out; 552238c8a9a5SSteve French } 552338c8a9a5SSteve French 552438c8a9a5SSteve French ksmbd_debug(SMB, "new name %s\n", new_name); 552538c8a9a5SSteve French if (ksmbd_share_veto_filename(share, new_name)) { 552638c8a9a5SSteve French rc = -ENOENT; 552738c8a9a5SSteve French ksmbd_debug(SMB, "Can't rename vetoed file: %s\n", new_name); 552838c8a9a5SSteve French goto out; 552938c8a9a5SSteve French } 553038c8a9a5SSteve French 553138c8a9a5SSteve French if (!file_info->ReplaceIfExists) 553238c8a9a5SSteve French flags = RENAME_NOREPLACE; 553338c8a9a5SSteve French 553438c8a9a5SSteve French rc = ksmbd_vfs_rename(work, &fp->filp->f_path, new_name, flags); 553538c8a9a5SSteve French out: 553638c8a9a5SSteve French kfree(new_name); 553738c8a9a5SSteve French return rc; 553838c8a9a5SSteve French } 553938c8a9a5SSteve French 554038c8a9a5SSteve French static int smb2_create_link(struct ksmbd_work *work, 554138c8a9a5SSteve French struct ksmbd_share_config *share, 554238c8a9a5SSteve French struct smb2_file_link_info *file_info, 554338c8a9a5SSteve French unsigned int buf_len, struct file *filp, 554438c8a9a5SSteve French struct nls_table *local_nls) 554538c8a9a5SSteve French { 554638c8a9a5SSteve French char *link_name = NULL, *target_name = NULL, *pathname = NULL; 55472b57a432SNamjae Jeon struct path path, parent_path; 5548df14afeeSNamjae Jeon bool file_present = false; 554938c8a9a5SSteve French int rc; 555038c8a9a5SSteve French 555138c8a9a5SSteve French if (buf_len < (u64)sizeof(struct smb2_file_link_info) + 555238c8a9a5SSteve French le32_to_cpu(file_info->FileNameLength)) 555338c8a9a5SSteve French return -EINVAL; 555438c8a9a5SSteve French 555538c8a9a5SSteve French ksmbd_debug(SMB, "setting FILE_LINK_INFORMATION\n"); 555638c8a9a5SSteve French pathname = kmalloc(PATH_MAX, GFP_KERNEL); 555738c8a9a5SSteve French if (!pathname) 555838c8a9a5SSteve French return -ENOMEM; 555938c8a9a5SSteve French 556038c8a9a5SSteve French link_name = smb2_get_name(file_info->FileName, 556138c8a9a5SSteve French le32_to_cpu(file_info->FileNameLength), 556238c8a9a5SSteve French local_nls); 556338c8a9a5SSteve French if (IS_ERR(link_name) || S_ISDIR(file_inode(filp)->i_mode)) { 556438c8a9a5SSteve French rc = -EINVAL; 556538c8a9a5SSteve French goto out; 556638c8a9a5SSteve French } 556738c8a9a5SSteve French 556838c8a9a5SSteve French ksmbd_debug(SMB, "link name is %s\n", link_name); 556938c8a9a5SSteve French target_name = file_path(filp, pathname, PATH_MAX); 557038c8a9a5SSteve French if (IS_ERR(target_name)) { 557138c8a9a5SSteve French rc = -EINVAL; 557238c8a9a5SSteve French goto out; 557338c8a9a5SSteve French } 557438c8a9a5SSteve French 557538c8a9a5SSteve French ksmbd_debug(SMB, "target name is %s\n", target_name); 557638c8a9a5SSteve French rc = ksmbd_vfs_kern_path_locked(work, link_name, LOOKUP_NO_SYMLINKS, 55772b57a432SNamjae Jeon &parent_path, &path, 0); 557838c8a9a5SSteve French if (rc) { 557938c8a9a5SSteve French if (rc != -ENOENT) 558038c8a9a5SSteve French goto out; 5581df14afeeSNamjae Jeon } else 5582df14afeeSNamjae Jeon file_present = true; 558338c8a9a5SSteve French 558438c8a9a5SSteve French if (file_info->ReplaceIfExists) { 558538c8a9a5SSteve French if (file_present) { 558638c8a9a5SSteve French rc = ksmbd_vfs_remove_file(work, &path); 558738c8a9a5SSteve French if (rc) { 558838c8a9a5SSteve French rc = -EINVAL; 558938c8a9a5SSteve French ksmbd_debug(SMB, "cannot delete %s\n", 559038c8a9a5SSteve French link_name); 559138c8a9a5SSteve French goto out; 559238c8a9a5SSteve French } 559338c8a9a5SSteve French } 559438c8a9a5SSteve French } else { 559538c8a9a5SSteve French if (file_present) { 559638c8a9a5SSteve French rc = -EEXIST; 559738c8a9a5SSteve French ksmbd_debug(SMB, "link already exists\n"); 559838c8a9a5SSteve French goto out; 559938c8a9a5SSteve French } 560038c8a9a5SSteve French } 560138c8a9a5SSteve French 560238c8a9a5SSteve French rc = ksmbd_vfs_link(work, target_name, link_name); 560338c8a9a5SSteve French if (rc) 560438c8a9a5SSteve French rc = -EINVAL; 560538c8a9a5SSteve French out: 560638c8a9a5SSteve French if (file_present) { 56072b57a432SNamjae Jeon inode_unlock(d_inode(parent_path.dentry)); 560838c8a9a5SSteve French path_put(&path); 56092b57a432SNamjae Jeon path_put(&parent_path); 561038c8a9a5SSteve French } 561138c8a9a5SSteve French if (!IS_ERR(link_name)) 561238c8a9a5SSteve French kfree(link_name); 561338c8a9a5SSteve French kfree(pathname); 561438c8a9a5SSteve French return rc; 561538c8a9a5SSteve French } 561638c8a9a5SSteve French 561738c8a9a5SSteve French static int set_file_basic_info(struct ksmbd_file *fp, 561838c8a9a5SSteve French struct smb2_file_basic_info *file_info, 561938c8a9a5SSteve French struct ksmbd_share_config *share) 562038c8a9a5SSteve French { 562138c8a9a5SSteve French struct iattr attrs; 562238c8a9a5SSteve French struct file *filp; 562338c8a9a5SSteve French struct inode *inode; 562438c8a9a5SSteve French struct mnt_idmap *idmap; 562538c8a9a5SSteve French int rc = 0; 562638c8a9a5SSteve French 562738c8a9a5SSteve French if (!(fp->daccess & FILE_WRITE_ATTRIBUTES_LE)) 562838c8a9a5SSteve French return -EACCES; 562938c8a9a5SSteve French 563038c8a9a5SSteve French attrs.ia_valid = 0; 563138c8a9a5SSteve French filp = fp->filp; 563238c8a9a5SSteve French inode = file_inode(filp); 563338c8a9a5SSteve French idmap = file_mnt_idmap(filp); 563438c8a9a5SSteve French 563538c8a9a5SSteve French if (file_info->CreationTime) 563638c8a9a5SSteve French fp->create_time = le64_to_cpu(file_info->CreationTime); 563738c8a9a5SSteve French 563838c8a9a5SSteve French if (file_info->LastAccessTime) { 563938c8a9a5SSteve French attrs.ia_atime = ksmbd_NTtimeToUnix(file_info->LastAccessTime); 564038c8a9a5SSteve French attrs.ia_valid |= (ATTR_ATIME | ATTR_ATIME_SET); 564138c8a9a5SSteve French } 564238c8a9a5SSteve French 564338c8a9a5SSteve French attrs.ia_valid |= ATTR_CTIME; 564438c8a9a5SSteve French if (file_info->ChangeTime) 564538c8a9a5SSteve French attrs.ia_ctime = ksmbd_NTtimeToUnix(file_info->ChangeTime); 564638c8a9a5SSteve French else 564794487653SJeff Layton attrs.ia_ctime = inode_get_ctime(inode); 564838c8a9a5SSteve French 564938c8a9a5SSteve French if (file_info->LastWriteTime) { 565038c8a9a5SSteve French attrs.ia_mtime = ksmbd_NTtimeToUnix(file_info->LastWriteTime); 565138c8a9a5SSteve French attrs.ia_valid |= (ATTR_MTIME | ATTR_MTIME_SET); 565238c8a9a5SSteve French } 565338c8a9a5SSteve French 565438c8a9a5SSteve French if (file_info->Attributes) { 565538c8a9a5SSteve French if (!S_ISDIR(inode->i_mode) && 565638c8a9a5SSteve French file_info->Attributes & FILE_ATTRIBUTE_DIRECTORY_LE) { 565738c8a9a5SSteve French pr_err("can't change a file to a directory\n"); 565838c8a9a5SSteve French return -EINVAL; 565938c8a9a5SSteve French } 566038c8a9a5SSteve French 566138c8a9a5SSteve French if (!(S_ISDIR(inode->i_mode) && file_info->Attributes == FILE_ATTRIBUTE_NORMAL_LE)) 566238c8a9a5SSteve French fp->f_ci->m_fattr = file_info->Attributes | 566338c8a9a5SSteve French (fp->f_ci->m_fattr & FILE_ATTRIBUTE_DIRECTORY_LE); 566438c8a9a5SSteve French } 566538c8a9a5SSteve French 566638c8a9a5SSteve French if (test_share_config_flag(share, KSMBD_SHARE_FLAG_STORE_DOS_ATTRS) && 566738c8a9a5SSteve French (file_info->CreationTime || file_info->Attributes)) { 566838c8a9a5SSteve French struct xattr_dos_attrib da = {0}; 566938c8a9a5SSteve French 567038c8a9a5SSteve French da.version = 4; 567138c8a9a5SSteve French da.itime = fp->itime; 567238c8a9a5SSteve French da.create_time = fp->create_time; 567338c8a9a5SSteve French da.attr = le32_to_cpu(fp->f_ci->m_fattr); 567438c8a9a5SSteve French da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME | 567538c8a9a5SSteve French XATTR_DOSINFO_ITIME; 567638c8a9a5SSteve French 567740b268d3SNamjae Jeon rc = ksmbd_vfs_set_dos_attrib_xattr(idmap, &filp->f_path, &da); 567838c8a9a5SSteve French if (rc) 567938c8a9a5SSteve French ksmbd_debug(SMB, 568038c8a9a5SSteve French "failed to restore file attribute in EA\n"); 568138c8a9a5SSteve French rc = 0; 568238c8a9a5SSteve French } 568338c8a9a5SSteve French 568438c8a9a5SSteve French if (attrs.ia_valid) { 568538c8a9a5SSteve French struct dentry *dentry = filp->f_path.dentry; 568638c8a9a5SSteve French struct inode *inode = d_inode(dentry); 568738c8a9a5SSteve French 568838c8a9a5SSteve French if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) 568938c8a9a5SSteve French return -EACCES; 569038c8a9a5SSteve French 569138c8a9a5SSteve French inode_lock(inode); 569294487653SJeff Layton inode_set_ctime_to_ts(inode, attrs.ia_ctime); 569338c8a9a5SSteve French attrs.ia_valid &= ~ATTR_CTIME; 569438c8a9a5SSteve French rc = notify_change(idmap, dentry, &attrs, NULL); 569538c8a9a5SSteve French inode_unlock(inode); 569638c8a9a5SSteve French } 569738c8a9a5SSteve French return rc; 569838c8a9a5SSteve French } 569938c8a9a5SSteve French 570038c8a9a5SSteve French static int set_file_allocation_info(struct ksmbd_work *work, 570138c8a9a5SSteve French struct ksmbd_file *fp, 570238c8a9a5SSteve French struct smb2_file_alloc_info *file_alloc_info) 570338c8a9a5SSteve French { 570438c8a9a5SSteve French /* 570538c8a9a5SSteve French * TODO : It's working fine only when store dos attributes 570638c8a9a5SSteve French * is not yes. need to implement a logic which works 570738c8a9a5SSteve French * properly with any smb.conf option 570838c8a9a5SSteve French */ 570938c8a9a5SSteve French 571038c8a9a5SSteve French loff_t alloc_blks; 571138c8a9a5SSteve French struct inode *inode; 571238c8a9a5SSteve French int rc; 571338c8a9a5SSteve French 571438c8a9a5SSteve French if (!(fp->daccess & FILE_WRITE_DATA_LE)) 571538c8a9a5SSteve French return -EACCES; 571638c8a9a5SSteve French 571738c8a9a5SSteve French alloc_blks = (le64_to_cpu(file_alloc_info->AllocationSize) + 511) >> 9; 571838c8a9a5SSteve French inode = file_inode(fp->filp); 571938c8a9a5SSteve French 572038c8a9a5SSteve French if (alloc_blks > inode->i_blocks) { 572138c8a9a5SSteve French smb_break_all_levII_oplock(work, fp, 1); 572238c8a9a5SSteve French rc = vfs_fallocate(fp->filp, FALLOC_FL_KEEP_SIZE, 0, 572338c8a9a5SSteve French alloc_blks * 512); 572438c8a9a5SSteve French if (rc && rc != -EOPNOTSUPP) { 572538c8a9a5SSteve French pr_err("vfs_fallocate is failed : %d\n", rc); 572638c8a9a5SSteve French return rc; 572738c8a9a5SSteve French } 572838c8a9a5SSteve French } else if (alloc_blks < inode->i_blocks) { 572938c8a9a5SSteve French loff_t size; 573038c8a9a5SSteve French 573138c8a9a5SSteve French /* 573238c8a9a5SSteve French * Allocation size could be smaller than original one 573338c8a9a5SSteve French * which means allocated blocks in file should be 573438c8a9a5SSteve French * deallocated. use truncate to cut out it, but inode 573538c8a9a5SSteve French * size is also updated with truncate offset. 573638c8a9a5SSteve French * inode size is retained by backup inode size. 573738c8a9a5SSteve French */ 573838c8a9a5SSteve French size = i_size_read(inode); 573938c8a9a5SSteve French rc = ksmbd_vfs_truncate(work, fp, alloc_blks * 512); 574038c8a9a5SSteve French if (rc) { 574138c8a9a5SSteve French pr_err("truncate failed!, err %d\n", rc); 574238c8a9a5SSteve French return rc; 574338c8a9a5SSteve French } 574438c8a9a5SSteve French if (size < alloc_blks * 512) 574538c8a9a5SSteve French i_size_write(inode, size); 574638c8a9a5SSteve French } 574738c8a9a5SSteve French return 0; 574838c8a9a5SSteve French } 574938c8a9a5SSteve French 575038c8a9a5SSteve French static int set_end_of_file_info(struct ksmbd_work *work, struct ksmbd_file *fp, 575138c8a9a5SSteve French struct smb2_file_eof_info *file_eof_info) 575238c8a9a5SSteve French { 575338c8a9a5SSteve French loff_t newsize; 575438c8a9a5SSteve French struct inode *inode; 575538c8a9a5SSteve French int rc; 575638c8a9a5SSteve French 575738c8a9a5SSteve French if (!(fp->daccess & FILE_WRITE_DATA_LE)) 575838c8a9a5SSteve French return -EACCES; 575938c8a9a5SSteve French 576038c8a9a5SSteve French newsize = le64_to_cpu(file_eof_info->EndOfFile); 576138c8a9a5SSteve French inode = file_inode(fp->filp); 576238c8a9a5SSteve French 576338c8a9a5SSteve French /* 576438c8a9a5SSteve French * If FILE_END_OF_FILE_INFORMATION of set_info_file is called 576538c8a9a5SSteve French * on FAT32 shared device, truncate execution time is too long 576638c8a9a5SSteve French * and network error could cause from windows client. because 576738c8a9a5SSteve French * truncate of some filesystem like FAT32 fill zero data in 576838c8a9a5SSteve French * truncated range. 576938c8a9a5SSteve French */ 577038c8a9a5SSteve French if (inode->i_sb->s_magic != MSDOS_SUPER_MAGIC) { 577138c8a9a5SSteve French ksmbd_debug(SMB, "truncated to newsize %lld\n", newsize); 577238c8a9a5SSteve French rc = ksmbd_vfs_truncate(work, fp, newsize); 577338c8a9a5SSteve French if (rc) { 577438c8a9a5SSteve French ksmbd_debug(SMB, "truncate failed!, err %d\n", rc); 577538c8a9a5SSteve French if (rc != -EAGAIN) 577638c8a9a5SSteve French rc = -EBADF; 577738c8a9a5SSteve French return rc; 577838c8a9a5SSteve French } 577938c8a9a5SSteve French } 578038c8a9a5SSteve French return 0; 578138c8a9a5SSteve French } 578238c8a9a5SSteve French 578338c8a9a5SSteve French static int set_rename_info(struct ksmbd_work *work, struct ksmbd_file *fp, 578438c8a9a5SSteve French struct smb2_file_rename_info *rename_info, 578538c8a9a5SSteve French unsigned int buf_len) 578638c8a9a5SSteve French { 578738c8a9a5SSteve French if (!(fp->daccess & FILE_DELETE_LE)) { 578838c8a9a5SSteve French pr_err("no right to delete : 0x%x\n", fp->daccess); 578938c8a9a5SSteve French return -EACCES; 579038c8a9a5SSteve French } 579138c8a9a5SSteve French 579238c8a9a5SSteve French if (buf_len < (u64)sizeof(struct smb2_file_rename_info) + 579338c8a9a5SSteve French le32_to_cpu(rename_info->FileNameLength)) 579438c8a9a5SSteve French return -EINVAL; 579538c8a9a5SSteve French 579638c8a9a5SSteve French if (!le32_to_cpu(rename_info->FileNameLength)) 579738c8a9a5SSteve French return -EINVAL; 579838c8a9a5SSteve French 579938c8a9a5SSteve French return smb2_rename(work, fp, rename_info, work->conn->local_nls); 580038c8a9a5SSteve French } 580138c8a9a5SSteve French 580238c8a9a5SSteve French static int set_file_disposition_info(struct ksmbd_file *fp, 580338c8a9a5SSteve French struct smb2_file_disposition_info *file_info) 580438c8a9a5SSteve French { 580538c8a9a5SSteve French struct inode *inode; 580638c8a9a5SSteve French 580738c8a9a5SSteve French if (!(fp->daccess & FILE_DELETE_LE)) { 580838c8a9a5SSteve French pr_err("no right to delete : 0x%x\n", fp->daccess); 580938c8a9a5SSteve French return -EACCES; 581038c8a9a5SSteve French } 581138c8a9a5SSteve French 581238c8a9a5SSteve French inode = file_inode(fp->filp); 581338c8a9a5SSteve French if (file_info->DeletePending) { 581438c8a9a5SSteve French if (S_ISDIR(inode->i_mode) && 581538c8a9a5SSteve French ksmbd_vfs_empty_dir(fp) == -ENOTEMPTY) 581638c8a9a5SSteve French return -EBUSY; 581738c8a9a5SSteve French ksmbd_set_inode_pending_delete(fp); 581838c8a9a5SSteve French } else { 581938c8a9a5SSteve French ksmbd_clear_inode_pending_delete(fp); 582038c8a9a5SSteve French } 582138c8a9a5SSteve French return 0; 582238c8a9a5SSteve French } 582338c8a9a5SSteve French 582438c8a9a5SSteve French static int set_file_position_info(struct ksmbd_file *fp, 582538c8a9a5SSteve French struct smb2_file_pos_info *file_info) 582638c8a9a5SSteve French { 582738c8a9a5SSteve French loff_t current_byte_offset; 582838c8a9a5SSteve French unsigned long sector_size; 582938c8a9a5SSteve French struct inode *inode; 583038c8a9a5SSteve French 583138c8a9a5SSteve French inode = file_inode(fp->filp); 583238c8a9a5SSteve French current_byte_offset = le64_to_cpu(file_info->CurrentByteOffset); 583338c8a9a5SSteve French sector_size = inode->i_sb->s_blocksize; 583438c8a9a5SSteve French 583538c8a9a5SSteve French if (current_byte_offset < 0 || 583638c8a9a5SSteve French (fp->coption == FILE_NO_INTERMEDIATE_BUFFERING_LE && 583738c8a9a5SSteve French current_byte_offset & (sector_size - 1))) { 583838c8a9a5SSteve French pr_err("CurrentByteOffset is not valid : %llu\n", 583938c8a9a5SSteve French current_byte_offset); 584038c8a9a5SSteve French return -EINVAL; 584138c8a9a5SSteve French } 584238c8a9a5SSteve French 584338c8a9a5SSteve French fp->filp->f_pos = current_byte_offset; 584438c8a9a5SSteve French return 0; 584538c8a9a5SSteve French } 584638c8a9a5SSteve French 584738c8a9a5SSteve French static int set_file_mode_info(struct ksmbd_file *fp, 584838c8a9a5SSteve French struct smb2_file_mode_info *file_info) 584938c8a9a5SSteve French { 585038c8a9a5SSteve French __le32 mode; 585138c8a9a5SSteve French 585238c8a9a5SSteve French mode = file_info->Mode; 585338c8a9a5SSteve French 585438c8a9a5SSteve French if ((mode & ~FILE_MODE_INFO_MASK)) { 585538c8a9a5SSteve French pr_err("Mode is not valid : 0x%x\n", le32_to_cpu(mode)); 585638c8a9a5SSteve French return -EINVAL; 585738c8a9a5SSteve French } 585838c8a9a5SSteve French 585938c8a9a5SSteve French /* 586038c8a9a5SSteve French * TODO : need to implement consideration for 586138c8a9a5SSteve French * FILE_SYNCHRONOUS_IO_ALERT and FILE_SYNCHRONOUS_IO_NONALERT 586238c8a9a5SSteve French */ 586338c8a9a5SSteve French ksmbd_vfs_set_fadvise(fp->filp, mode); 586438c8a9a5SSteve French fp->coption = mode; 586538c8a9a5SSteve French return 0; 586638c8a9a5SSteve French } 586738c8a9a5SSteve French 586838c8a9a5SSteve French /** 586938c8a9a5SSteve French * smb2_set_info_file() - handler for smb2 set info command 587038c8a9a5SSteve French * @work: smb work containing set info command buffer 587138c8a9a5SSteve French * @fp: ksmbd_file pointer 587238c8a9a5SSteve French * @req: request buffer pointer 587338c8a9a5SSteve French * @share: ksmbd_share_config pointer 587438c8a9a5SSteve French * 587538c8a9a5SSteve French * Return: 0 on success, otherwise error 587638c8a9a5SSteve French * TODO: need to implement an error handling for STATUS_INFO_LENGTH_MISMATCH 587738c8a9a5SSteve French */ 587838c8a9a5SSteve French static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp, 587938c8a9a5SSteve French struct smb2_set_info_req *req, 588038c8a9a5SSteve French struct ksmbd_share_config *share) 588138c8a9a5SSteve French { 588238c8a9a5SSteve French unsigned int buf_len = le32_to_cpu(req->BufferLength); 588338c8a9a5SSteve French 588438c8a9a5SSteve French switch (req->FileInfoClass) { 588538c8a9a5SSteve French case FILE_BASIC_INFORMATION: 588638c8a9a5SSteve French { 588738c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_basic_info)) 588838c8a9a5SSteve French return -EINVAL; 588938c8a9a5SSteve French 589038c8a9a5SSteve French return set_file_basic_info(fp, (struct smb2_file_basic_info *)req->Buffer, share); 589138c8a9a5SSteve French } 589238c8a9a5SSteve French case FILE_ALLOCATION_INFORMATION: 589338c8a9a5SSteve French { 589438c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_alloc_info)) 589538c8a9a5SSteve French return -EINVAL; 589638c8a9a5SSteve French 589738c8a9a5SSteve French return set_file_allocation_info(work, fp, 589838c8a9a5SSteve French (struct smb2_file_alloc_info *)req->Buffer); 589938c8a9a5SSteve French } 590038c8a9a5SSteve French case FILE_END_OF_FILE_INFORMATION: 590138c8a9a5SSteve French { 590238c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_eof_info)) 590338c8a9a5SSteve French return -EINVAL; 590438c8a9a5SSteve French 590538c8a9a5SSteve French return set_end_of_file_info(work, fp, 590638c8a9a5SSteve French (struct smb2_file_eof_info *)req->Buffer); 590738c8a9a5SSteve French } 590838c8a9a5SSteve French case FILE_RENAME_INFORMATION: 590938c8a9a5SSteve French { 591038c8a9a5SSteve French if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 591138c8a9a5SSteve French ksmbd_debug(SMB, 591238c8a9a5SSteve French "User does not have write permission\n"); 591338c8a9a5SSteve French return -EACCES; 591438c8a9a5SSteve French } 591538c8a9a5SSteve French 591638c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_rename_info)) 591738c8a9a5SSteve French return -EINVAL; 591838c8a9a5SSteve French 591938c8a9a5SSteve French return set_rename_info(work, fp, 592038c8a9a5SSteve French (struct smb2_file_rename_info *)req->Buffer, 592138c8a9a5SSteve French buf_len); 592238c8a9a5SSteve French } 592338c8a9a5SSteve French case FILE_LINK_INFORMATION: 592438c8a9a5SSteve French { 592538c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_link_info)) 592638c8a9a5SSteve French return -EINVAL; 592738c8a9a5SSteve French 592838c8a9a5SSteve French return smb2_create_link(work, work->tcon->share_conf, 592938c8a9a5SSteve French (struct smb2_file_link_info *)req->Buffer, 593038c8a9a5SSteve French buf_len, fp->filp, 593138c8a9a5SSteve French work->conn->local_nls); 593238c8a9a5SSteve French } 593338c8a9a5SSteve French case FILE_DISPOSITION_INFORMATION: 593438c8a9a5SSteve French { 593538c8a9a5SSteve French if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 593638c8a9a5SSteve French ksmbd_debug(SMB, 593738c8a9a5SSteve French "User does not have write permission\n"); 593838c8a9a5SSteve French return -EACCES; 593938c8a9a5SSteve French } 594038c8a9a5SSteve French 594138c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_disposition_info)) 594238c8a9a5SSteve French return -EINVAL; 594338c8a9a5SSteve French 594438c8a9a5SSteve French return set_file_disposition_info(fp, 594538c8a9a5SSteve French (struct smb2_file_disposition_info *)req->Buffer); 594638c8a9a5SSteve French } 594738c8a9a5SSteve French case FILE_FULL_EA_INFORMATION: 594838c8a9a5SSteve French { 594938c8a9a5SSteve French if (!(fp->daccess & FILE_WRITE_EA_LE)) { 595038c8a9a5SSteve French pr_err("Not permitted to write ext attr: 0x%x\n", 595138c8a9a5SSteve French fp->daccess); 595238c8a9a5SSteve French return -EACCES; 595338c8a9a5SSteve French } 595438c8a9a5SSteve French 595538c8a9a5SSteve French if (buf_len < sizeof(struct smb2_ea_info)) 595638c8a9a5SSteve French return -EINVAL; 595738c8a9a5SSteve French 595838c8a9a5SSteve French return smb2_set_ea((struct smb2_ea_info *)req->Buffer, 595938c8a9a5SSteve French buf_len, &fp->filp->f_path); 596038c8a9a5SSteve French } 596138c8a9a5SSteve French case FILE_POSITION_INFORMATION: 596238c8a9a5SSteve French { 596338c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_pos_info)) 596438c8a9a5SSteve French return -EINVAL; 596538c8a9a5SSteve French 596638c8a9a5SSteve French return set_file_position_info(fp, (struct smb2_file_pos_info *)req->Buffer); 596738c8a9a5SSteve French } 596838c8a9a5SSteve French case FILE_MODE_INFORMATION: 596938c8a9a5SSteve French { 597038c8a9a5SSteve French if (buf_len < sizeof(struct smb2_file_mode_info)) 597138c8a9a5SSteve French return -EINVAL; 597238c8a9a5SSteve French 597338c8a9a5SSteve French return set_file_mode_info(fp, (struct smb2_file_mode_info *)req->Buffer); 597438c8a9a5SSteve French } 597538c8a9a5SSteve French } 597638c8a9a5SSteve French 597738c8a9a5SSteve French pr_err("Unimplemented Fileinfoclass :%d\n", req->FileInfoClass); 597838c8a9a5SSteve French return -EOPNOTSUPP; 597938c8a9a5SSteve French } 598038c8a9a5SSteve French 598138c8a9a5SSteve French static int smb2_set_info_sec(struct ksmbd_file *fp, int addition_info, 598238c8a9a5SSteve French char *buffer, int buf_len) 598338c8a9a5SSteve French { 598438c8a9a5SSteve French struct smb_ntsd *pntsd = (struct smb_ntsd *)buffer; 598538c8a9a5SSteve French 598638c8a9a5SSteve French fp->saccess |= FILE_SHARE_DELETE_LE; 598738c8a9a5SSteve French 598838c8a9a5SSteve French return set_info_sec(fp->conn, fp->tcon, &fp->filp->f_path, pntsd, 598938c8a9a5SSteve French buf_len, false); 599038c8a9a5SSteve French } 599138c8a9a5SSteve French 599238c8a9a5SSteve French /** 599338c8a9a5SSteve French * smb2_set_info() - handler for smb2 set info command handler 599438c8a9a5SSteve French * @work: smb work containing set info request buffer 599538c8a9a5SSteve French * 599638c8a9a5SSteve French * Return: 0 on success, otherwise error 599738c8a9a5SSteve French */ 599838c8a9a5SSteve French int smb2_set_info(struct ksmbd_work *work) 599938c8a9a5SSteve French { 600038c8a9a5SSteve French struct smb2_set_info_req *req; 600138c8a9a5SSteve French struct smb2_set_info_rsp *rsp; 600238c8a9a5SSteve French struct ksmbd_file *fp; 600338c8a9a5SSteve French int rc = 0; 600438c8a9a5SSteve French unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; 600538c8a9a5SSteve French 600638c8a9a5SSteve French ksmbd_debug(SMB, "Received set info request\n"); 600738c8a9a5SSteve French 600838c8a9a5SSteve French if (work->next_smb2_rcv_hdr_off) { 600938c8a9a5SSteve French req = ksmbd_req_buf_next(work); 601038c8a9a5SSteve French rsp = ksmbd_resp_buf_next(work); 601138c8a9a5SSteve French if (!has_file_id(req->VolatileFileId)) { 601238c8a9a5SSteve French ksmbd_debug(SMB, "Compound request set FID = %llu\n", 601338c8a9a5SSteve French work->compound_fid); 601438c8a9a5SSteve French id = work->compound_fid; 601538c8a9a5SSteve French pid = work->compound_pfid; 601638c8a9a5SSteve French } 601738c8a9a5SSteve French } else { 601838c8a9a5SSteve French req = smb2_get_msg(work->request_buf); 601938c8a9a5SSteve French rsp = smb2_get_msg(work->response_buf); 602038c8a9a5SSteve French } 602138c8a9a5SSteve French 602238c8a9a5SSteve French if (!has_file_id(id)) { 602338c8a9a5SSteve French id = req->VolatileFileId; 602438c8a9a5SSteve French pid = req->PersistentFileId; 602538c8a9a5SSteve French } 602638c8a9a5SSteve French 602738c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, id, pid); 602838c8a9a5SSteve French if (!fp) { 602938c8a9a5SSteve French ksmbd_debug(SMB, "Invalid id for close: %u\n", id); 603038c8a9a5SSteve French rc = -ENOENT; 603138c8a9a5SSteve French goto err_out; 603238c8a9a5SSteve French } 603338c8a9a5SSteve French 603438c8a9a5SSteve French switch (req->InfoType) { 603538c8a9a5SSteve French case SMB2_O_INFO_FILE: 603638c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n"); 603738c8a9a5SSteve French rc = smb2_set_info_file(work, fp, req, work->tcon->share_conf); 603838c8a9a5SSteve French break; 603938c8a9a5SSteve French case SMB2_O_INFO_SECURITY: 604038c8a9a5SSteve French ksmbd_debug(SMB, "GOT SMB2_O_INFO_SECURITY\n"); 604138c8a9a5SSteve French if (ksmbd_override_fsids(work)) { 604238c8a9a5SSteve French rc = -ENOMEM; 604338c8a9a5SSteve French goto err_out; 604438c8a9a5SSteve French } 604538c8a9a5SSteve French rc = smb2_set_info_sec(fp, 604638c8a9a5SSteve French le32_to_cpu(req->AdditionalInformation), 604738c8a9a5SSteve French req->Buffer, 604838c8a9a5SSteve French le32_to_cpu(req->BufferLength)); 604938c8a9a5SSteve French ksmbd_revert_fsids(work); 605038c8a9a5SSteve French break; 605138c8a9a5SSteve French default: 605238c8a9a5SSteve French rc = -EOPNOTSUPP; 605338c8a9a5SSteve French } 605438c8a9a5SSteve French 605538c8a9a5SSteve French if (rc < 0) 605638c8a9a5SSteve French goto err_out; 605738c8a9a5SSteve French 605838c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(2); 6059e2b76ab8SNamjae Jeon rc = ksmbd_iov_pin_rsp(work, (void *)rsp, 6060e2b76ab8SNamjae Jeon sizeof(struct smb2_set_info_rsp)); 6061e2b76ab8SNamjae Jeon if (rc) 6062e2b76ab8SNamjae Jeon goto err_out; 606338c8a9a5SSteve French ksmbd_fd_put(work, fp); 606438c8a9a5SSteve French return 0; 606538c8a9a5SSteve French 606638c8a9a5SSteve French err_out: 606738c8a9a5SSteve French if (rc == -EACCES || rc == -EPERM || rc == -EXDEV) 606838c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 606938c8a9a5SSteve French else if (rc == -EINVAL) 607038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 607138c8a9a5SSteve French else if (rc == -ESHARE) 607238c8a9a5SSteve French rsp->hdr.Status = STATUS_SHARING_VIOLATION; 607338c8a9a5SSteve French else if (rc == -ENOENT) 607438c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_INVALID; 607538c8a9a5SSteve French else if (rc == -EBUSY || rc == -ENOTEMPTY) 607638c8a9a5SSteve French rsp->hdr.Status = STATUS_DIRECTORY_NOT_EMPTY; 607738c8a9a5SSteve French else if (rc == -EAGAIN) 607838c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; 607938c8a9a5SSteve French else if (rc == -EBADF || rc == -ESTALE) 608038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 608138c8a9a5SSteve French else if (rc == -EEXIST) 608238c8a9a5SSteve French rsp->hdr.Status = STATUS_OBJECT_NAME_COLLISION; 608338c8a9a5SSteve French else if (rsp->hdr.Status == 0 || rc == -EOPNOTSUPP) 608438c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_INFO_CLASS; 608538c8a9a5SSteve French smb2_set_err_rsp(work); 608638c8a9a5SSteve French ksmbd_fd_put(work, fp); 608738c8a9a5SSteve French ksmbd_debug(SMB, "error while processing smb2 query rc = %d\n", rc); 608838c8a9a5SSteve French return rc; 608938c8a9a5SSteve French } 609038c8a9a5SSteve French 609138c8a9a5SSteve French /** 609238c8a9a5SSteve French * smb2_read_pipe() - handler for smb2 read from IPC pipe 609338c8a9a5SSteve French * @work: smb work containing read IPC pipe command buffer 609438c8a9a5SSteve French * 609538c8a9a5SSteve French * Return: 0 on success, otherwise error 609638c8a9a5SSteve French */ 609738c8a9a5SSteve French static noinline int smb2_read_pipe(struct ksmbd_work *work) 609838c8a9a5SSteve French { 609938c8a9a5SSteve French int nbytes = 0, err; 610038c8a9a5SSteve French u64 id; 610138c8a9a5SSteve French struct ksmbd_rpc_command *rpc_resp; 61027b7d709eSNamjae Jeon struct smb2_read_req *req; 61037b7d709eSNamjae Jeon struct smb2_read_rsp *rsp; 61047b7d709eSNamjae Jeon 61057b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 610638c8a9a5SSteve French 610738c8a9a5SSteve French id = req->VolatileFileId; 610838c8a9a5SSteve French 610938c8a9a5SSteve French rpc_resp = ksmbd_rpc_read(work->sess, id); 611038c8a9a5SSteve French if (rpc_resp) { 6111e2b76ab8SNamjae Jeon void *aux_payload_buf; 6112e2b76ab8SNamjae Jeon 611338c8a9a5SSteve French if (rpc_resp->flags != KSMBD_RPC_OK) { 611438c8a9a5SSteve French err = -EINVAL; 611538c8a9a5SSteve French goto out; 611638c8a9a5SSteve French } 611738c8a9a5SSteve French 6118e2b76ab8SNamjae Jeon aux_payload_buf = 611981a94b27SNamjae Jeon kvmalloc(rpc_resp->payload_sz, GFP_KERNEL); 6120e2b76ab8SNamjae Jeon if (!aux_payload_buf) { 612138c8a9a5SSteve French err = -ENOMEM; 612238c8a9a5SSteve French goto out; 612338c8a9a5SSteve French } 612438c8a9a5SSteve French 6125e2b76ab8SNamjae Jeon memcpy(aux_payload_buf, rpc_resp->payload, rpc_resp->payload_sz); 612638c8a9a5SSteve French 612738c8a9a5SSteve French nbytes = rpc_resp->payload_sz; 612838c8a9a5SSteve French kvfree(rpc_resp); 6129e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp_read(work, (void *)rsp, 6130e2b76ab8SNamjae Jeon offsetof(struct smb2_read_rsp, Buffer), 6131e2b76ab8SNamjae Jeon aux_payload_buf, nbytes); 6132e2b76ab8SNamjae Jeon if (err) 6133e2b76ab8SNamjae Jeon goto out; 6134e2b76ab8SNamjae Jeon } else { 6135e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, (void *)rsp, 6136e2b76ab8SNamjae Jeon offsetof(struct smb2_read_rsp, Buffer)); 6137e2b76ab8SNamjae Jeon if (err) 6138e2b76ab8SNamjae Jeon goto out; 613938c8a9a5SSteve French } 614038c8a9a5SSteve French 614138c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(17); 614238c8a9a5SSteve French rsp->DataOffset = 80; 614338c8a9a5SSteve French rsp->Reserved = 0; 614438c8a9a5SSteve French rsp->DataLength = cpu_to_le32(nbytes); 614538c8a9a5SSteve French rsp->DataRemaining = 0; 614638c8a9a5SSteve French rsp->Flags = 0; 614738c8a9a5SSteve French return 0; 614838c8a9a5SSteve French 614938c8a9a5SSteve French out: 615038c8a9a5SSteve French rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR; 615138c8a9a5SSteve French smb2_set_err_rsp(work); 615238c8a9a5SSteve French kvfree(rpc_resp); 615338c8a9a5SSteve French return err; 615438c8a9a5SSteve French } 615538c8a9a5SSteve French 615638c8a9a5SSteve French static int smb2_set_remote_key_for_rdma(struct ksmbd_work *work, 615738c8a9a5SSteve French struct smb2_buffer_desc_v1 *desc, 615838c8a9a5SSteve French __le32 Channel, 615938c8a9a5SSteve French __le16 ChannelInfoLength) 616038c8a9a5SSteve French { 616138c8a9a5SSteve French unsigned int i, ch_count; 616238c8a9a5SSteve French 616338c8a9a5SSteve French if (work->conn->dialect == SMB30_PROT_ID && 616438c8a9a5SSteve French Channel != SMB2_CHANNEL_RDMA_V1) 616538c8a9a5SSteve French return -EINVAL; 616638c8a9a5SSteve French 616738c8a9a5SSteve French ch_count = le16_to_cpu(ChannelInfoLength) / sizeof(*desc); 616838c8a9a5SSteve French if (ksmbd_debug_types & KSMBD_DEBUG_RDMA) { 616938c8a9a5SSteve French for (i = 0; i < ch_count; i++) { 617038c8a9a5SSteve French pr_info("RDMA r/w request %#x: token %#x, length %#x\n", 617138c8a9a5SSteve French i, 617238c8a9a5SSteve French le32_to_cpu(desc[i].token), 617338c8a9a5SSteve French le32_to_cpu(desc[i].length)); 617438c8a9a5SSteve French } 617538c8a9a5SSteve French } 617638c8a9a5SSteve French if (!ch_count) 617738c8a9a5SSteve French return -EINVAL; 617838c8a9a5SSteve French 617938c8a9a5SSteve French work->need_invalidate_rkey = 618038c8a9a5SSteve French (Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE); 618138c8a9a5SSteve French if (Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE) 618238c8a9a5SSteve French work->remote_key = le32_to_cpu(desc->token); 618338c8a9a5SSteve French return 0; 618438c8a9a5SSteve French } 618538c8a9a5SSteve French 618638c8a9a5SSteve French static ssize_t smb2_read_rdma_channel(struct ksmbd_work *work, 618738c8a9a5SSteve French struct smb2_read_req *req, void *data_buf, 618838c8a9a5SSteve French size_t length) 618938c8a9a5SSteve French { 619038c8a9a5SSteve French int err; 619138c8a9a5SSteve French 619238c8a9a5SSteve French err = ksmbd_conn_rdma_write(work->conn, data_buf, length, 619338c8a9a5SSteve French (struct smb2_buffer_desc_v1 *) 619438c8a9a5SSteve French ((char *)req + le16_to_cpu(req->ReadChannelInfoOffset)), 619538c8a9a5SSteve French le16_to_cpu(req->ReadChannelInfoLength)); 619638c8a9a5SSteve French if (err) 619738c8a9a5SSteve French return err; 619838c8a9a5SSteve French 619938c8a9a5SSteve French return length; 620038c8a9a5SSteve French } 620138c8a9a5SSteve French 620238c8a9a5SSteve French /** 620338c8a9a5SSteve French * smb2_read() - handler for smb2 read from file 620438c8a9a5SSteve French * @work: smb work containing read command buffer 620538c8a9a5SSteve French * 620638c8a9a5SSteve French * Return: 0 on success, otherwise error 620738c8a9a5SSteve French */ 620838c8a9a5SSteve French int smb2_read(struct ksmbd_work *work) 620938c8a9a5SSteve French { 621038c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 621138c8a9a5SSteve French struct smb2_read_req *req; 621238c8a9a5SSteve French struct smb2_read_rsp *rsp; 621338c8a9a5SSteve French struct ksmbd_file *fp = NULL; 621438c8a9a5SSteve French loff_t offset; 621538c8a9a5SSteve French size_t length, mincount; 621638c8a9a5SSteve French ssize_t nbytes = 0, remain_bytes = 0; 621738c8a9a5SSteve French int err = 0; 621838c8a9a5SSteve French bool is_rdma_channel = false; 621938c8a9a5SSteve French unsigned int max_read_size = conn->vals->max_read_size; 6220e2b76ab8SNamjae Jeon unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID; 6221e2b76ab8SNamjae Jeon void *aux_payload_buf; 622238c8a9a5SSteve French 622338c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, 622438c8a9a5SSteve French KSMBD_SHARE_FLAG_PIPE)) { 622538c8a9a5SSteve French ksmbd_debug(SMB, "IPC pipe read request\n"); 622638c8a9a5SSteve French return smb2_read_pipe(work); 622738c8a9a5SSteve French } 622838c8a9a5SSteve French 6229e2b76ab8SNamjae Jeon if (work->next_smb2_rcv_hdr_off) { 6230e2b76ab8SNamjae Jeon req = ksmbd_req_buf_next(work); 6231e2b76ab8SNamjae Jeon rsp = ksmbd_resp_buf_next(work); 6232e2b76ab8SNamjae Jeon if (!has_file_id(req->VolatileFileId)) { 6233e2b76ab8SNamjae Jeon ksmbd_debug(SMB, "Compound request set FID = %llu\n", 6234e2b76ab8SNamjae Jeon work->compound_fid); 6235e2b76ab8SNamjae Jeon id = work->compound_fid; 6236e2b76ab8SNamjae Jeon pid = work->compound_pfid; 6237e2b76ab8SNamjae Jeon } 6238e2b76ab8SNamjae Jeon } else { 6239e2b76ab8SNamjae Jeon req = smb2_get_msg(work->request_buf); 6240e2b76ab8SNamjae Jeon rsp = smb2_get_msg(work->response_buf); 6241e2b76ab8SNamjae Jeon } 6242e2b76ab8SNamjae Jeon 6243e2b76ab8SNamjae Jeon if (!has_file_id(id)) { 6244e2b76ab8SNamjae Jeon id = req->VolatileFileId; 6245e2b76ab8SNamjae Jeon pid = req->PersistentFileId; 6246e2b76ab8SNamjae Jeon } 6247e2b76ab8SNamjae Jeon 624838c8a9a5SSteve French if (req->Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE || 624938c8a9a5SSteve French req->Channel == SMB2_CHANNEL_RDMA_V1) { 625038c8a9a5SSteve French is_rdma_channel = true; 625138c8a9a5SSteve French max_read_size = get_smbd_max_read_write_size(); 625238c8a9a5SSteve French } 625338c8a9a5SSteve French 625438c8a9a5SSteve French if (is_rdma_channel == true) { 625538c8a9a5SSteve French unsigned int ch_offset = le16_to_cpu(req->ReadChannelInfoOffset); 625638c8a9a5SSteve French 625738c8a9a5SSteve French if (ch_offset < offsetof(struct smb2_read_req, Buffer)) { 625838c8a9a5SSteve French err = -EINVAL; 625938c8a9a5SSteve French goto out; 626038c8a9a5SSteve French } 626138c8a9a5SSteve French err = smb2_set_remote_key_for_rdma(work, 626238c8a9a5SSteve French (struct smb2_buffer_desc_v1 *) 626338c8a9a5SSteve French ((char *)req + ch_offset), 626438c8a9a5SSteve French req->Channel, 626538c8a9a5SSteve French req->ReadChannelInfoLength); 626638c8a9a5SSteve French if (err) 626738c8a9a5SSteve French goto out; 626838c8a9a5SSteve French } 626938c8a9a5SSteve French 6270e2b76ab8SNamjae Jeon fp = ksmbd_lookup_fd_slow(work, id, pid); 627138c8a9a5SSteve French if (!fp) { 627238c8a9a5SSteve French err = -ENOENT; 627338c8a9a5SSteve French goto out; 627438c8a9a5SSteve French } 627538c8a9a5SSteve French 627638c8a9a5SSteve French if (!(fp->daccess & (FILE_READ_DATA_LE | FILE_READ_ATTRIBUTES_LE))) { 627738c8a9a5SSteve French pr_err("Not permitted to read : 0x%x\n", fp->daccess); 627838c8a9a5SSteve French err = -EACCES; 627938c8a9a5SSteve French goto out; 628038c8a9a5SSteve French } 628138c8a9a5SSteve French 628238c8a9a5SSteve French offset = le64_to_cpu(req->Offset); 628338c8a9a5SSteve French length = le32_to_cpu(req->Length); 628438c8a9a5SSteve French mincount = le32_to_cpu(req->MinimumCount); 628538c8a9a5SSteve French 628638c8a9a5SSteve French if (length > max_read_size) { 628738c8a9a5SSteve French ksmbd_debug(SMB, "limiting read size to max size(%u)\n", 628838c8a9a5SSteve French max_read_size); 628938c8a9a5SSteve French err = -EINVAL; 629038c8a9a5SSteve French goto out; 629138c8a9a5SSteve French } 629238c8a9a5SSteve French 629338c8a9a5SSteve French ksmbd_debug(SMB, "filename %pD, offset %lld, len %zu\n", 629438c8a9a5SSteve French fp->filp, offset, length); 629538c8a9a5SSteve French 6296e2b76ab8SNamjae Jeon aux_payload_buf = kvzalloc(length, GFP_KERNEL); 6297e2b76ab8SNamjae Jeon if (!aux_payload_buf) { 629838c8a9a5SSteve French err = -ENOMEM; 629938c8a9a5SSteve French goto out; 630038c8a9a5SSteve French } 630138c8a9a5SSteve French 6302e2b76ab8SNamjae Jeon nbytes = ksmbd_vfs_read(work, fp, length, &offset, aux_payload_buf); 630338c8a9a5SSteve French if (nbytes < 0) { 630438c8a9a5SSteve French err = nbytes; 630538c8a9a5SSteve French goto out; 630638c8a9a5SSteve French } 630738c8a9a5SSteve French 630838c8a9a5SSteve French if ((nbytes == 0 && length != 0) || nbytes < mincount) { 6309e2b76ab8SNamjae Jeon kvfree(aux_payload_buf); 631038c8a9a5SSteve French rsp->hdr.Status = STATUS_END_OF_FILE; 631138c8a9a5SSteve French smb2_set_err_rsp(work); 631238c8a9a5SSteve French ksmbd_fd_put(work, fp); 631338c8a9a5SSteve French return 0; 631438c8a9a5SSteve French } 631538c8a9a5SSteve French 631638c8a9a5SSteve French ksmbd_debug(SMB, "nbytes %zu, offset %lld mincount %zu\n", 631738c8a9a5SSteve French nbytes, offset, mincount); 631838c8a9a5SSteve French 631938c8a9a5SSteve French if (is_rdma_channel == true) { 632038c8a9a5SSteve French /* write data to the client using rdma channel */ 632138c8a9a5SSteve French remain_bytes = smb2_read_rdma_channel(work, req, 6322e2b76ab8SNamjae Jeon aux_payload_buf, 632338c8a9a5SSteve French nbytes); 6324e2b76ab8SNamjae Jeon kvfree(aux_payload_buf); 632559d8d24fSNamjae Jeon aux_payload_buf = NULL; 632638c8a9a5SSteve French nbytes = 0; 632738c8a9a5SSteve French if (remain_bytes < 0) { 632838c8a9a5SSteve French err = (int)remain_bytes; 632938c8a9a5SSteve French goto out; 633038c8a9a5SSteve French } 633138c8a9a5SSteve French } 633238c8a9a5SSteve French 633338c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(17); 633438c8a9a5SSteve French rsp->DataOffset = 80; 633538c8a9a5SSteve French rsp->Reserved = 0; 633638c8a9a5SSteve French rsp->DataLength = cpu_to_le32(nbytes); 633738c8a9a5SSteve French rsp->DataRemaining = cpu_to_le32(remain_bytes); 633838c8a9a5SSteve French rsp->Flags = 0; 6339e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp_read(work, (void *)rsp, 6340e2b76ab8SNamjae Jeon offsetof(struct smb2_read_rsp, Buffer), 6341e2b76ab8SNamjae Jeon aux_payload_buf, nbytes); 6342e2b76ab8SNamjae Jeon if (err) 6343e2b76ab8SNamjae Jeon goto out; 634438c8a9a5SSteve French ksmbd_fd_put(work, fp); 634538c8a9a5SSteve French return 0; 634638c8a9a5SSteve French 634738c8a9a5SSteve French out: 634838c8a9a5SSteve French if (err) { 634938c8a9a5SSteve French if (err == -EISDIR) 635038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_DEVICE_REQUEST; 635138c8a9a5SSteve French else if (err == -EAGAIN) 635238c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; 635338c8a9a5SSteve French else if (err == -ENOENT) 635438c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 635538c8a9a5SSteve French else if (err == -EACCES) 635638c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 635738c8a9a5SSteve French else if (err == -ESHARE) 635838c8a9a5SSteve French rsp->hdr.Status = STATUS_SHARING_VIOLATION; 635938c8a9a5SSteve French else if (err == -EINVAL) 636038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 636138c8a9a5SSteve French else 636238c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 636338c8a9a5SSteve French 636438c8a9a5SSteve French smb2_set_err_rsp(work); 636538c8a9a5SSteve French } 636638c8a9a5SSteve French ksmbd_fd_put(work, fp); 636738c8a9a5SSteve French return err; 636838c8a9a5SSteve French } 636938c8a9a5SSteve French 637038c8a9a5SSteve French /** 637138c8a9a5SSteve French * smb2_write_pipe() - handler for smb2 write on IPC pipe 637238c8a9a5SSteve French * @work: smb work containing write IPC pipe command buffer 637338c8a9a5SSteve French * 637438c8a9a5SSteve French * Return: 0 on success, otherwise error 637538c8a9a5SSteve French */ 637638c8a9a5SSteve French static noinline int smb2_write_pipe(struct ksmbd_work *work) 637738c8a9a5SSteve French { 63787b7d709eSNamjae Jeon struct smb2_write_req *req; 63797b7d709eSNamjae Jeon struct smb2_write_rsp *rsp; 638038c8a9a5SSteve French struct ksmbd_rpc_command *rpc_resp; 638138c8a9a5SSteve French u64 id = 0; 638238c8a9a5SSteve French int err = 0, ret = 0; 638338c8a9a5SSteve French char *data_buf; 638438c8a9a5SSteve French size_t length; 638538c8a9a5SSteve French 63867b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 63877b7d709eSNamjae Jeon 638838c8a9a5SSteve French length = le32_to_cpu(req->Length); 638938c8a9a5SSteve French id = req->VolatileFileId; 639038c8a9a5SSteve French 639138c8a9a5SSteve French if ((u64)le16_to_cpu(req->DataOffset) + length > 639238c8a9a5SSteve French get_rfc1002_len(work->request_buf)) { 639338c8a9a5SSteve French pr_err("invalid write data offset %u, smb_len %u\n", 639438c8a9a5SSteve French le16_to_cpu(req->DataOffset), 639538c8a9a5SSteve French get_rfc1002_len(work->request_buf)); 639638c8a9a5SSteve French err = -EINVAL; 639738c8a9a5SSteve French goto out; 639838c8a9a5SSteve French } 639938c8a9a5SSteve French 640038c8a9a5SSteve French data_buf = (char *)(((char *)&req->hdr.ProtocolId) + 640138c8a9a5SSteve French le16_to_cpu(req->DataOffset)); 640238c8a9a5SSteve French 640338c8a9a5SSteve French rpc_resp = ksmbd_rpc_write(work->sess, id, data_buf, length); 640438c8a9a5SSteve French if (rpc_resp) { 640538c8a9a5SSteve French if (rpc_resp->flags == KSMBD_RPC_ENOTIMPLEMENTED) { 640638c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_SUPPORTED; 640738c8a9a5SSteve French kvfree(rpc_resp); 640838c8a9a5SSteve French smb2_set_err_rsp(work); 640938c8a9a5SSteve French return -EOPNOTSUPP; 641038c8a9a5SSteve French } 641138c8a9a5SSteve French if (rpc_resp->flags != KSMBD_RPC_OK) { 641238c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 641338c8a9a5SSteve French smb2_set_err_rsp(work); 641438c8a9a5SSteve French kvfree(rpc_resp); 641538c8a9a5SSteve French return ret; 641638c8a9a5SSteve French } 641738c8a9a5SSteve French kvfree(rpc_resp); 641838c8a9a5SSteve French } 641938c8a9a5SSteve French 642038c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(17); 642138c8a9a5SSteve French rsp->DataOffset = 0; 642238c8a9a5SSteve French rsp->Reserved = 0; 642338c8a9a5SSteve French rsp->DataLength = cpu_to_le32(length); 642438c8a9a5SSteve French rsp->DataRemaining = 0; 642538c8a9a5SSteve French rsp->Reserved2 = 0; 6426e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, (void *)rsp, 6427e2b76ab8SNamjae Jeon offsetof(struct smb2_write_rsp, Buffer)); 642838c8a9a5SSteve French out: 642938c8a9a5SSteve French if (err) { 643038c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 643138c8a9a5SSteve French smb2_set_err_rsp(work); 643238c8a9a5SSteve French } 643338c8a9a5SSteve French 643438c8a9a5SSteve French return err; 643538c8a9a5SSteve French } 643638c8a9a5SSteve French 643738c8a9a5SSteve French static ssize_t smb2_write_rdma_channel(struct ksmbd_work *work, 643838c8a9a5SSteve French struct smb2_write_req *req, 643938c8a9a5SSteve French struct ksmbd_file *fp, 644038c8a9a5SSteve French loff_t offset, size_t length, bool sync) 644138c8a9a5SSteve French { 644238c8a9a5SSteve French char *data_buf; 644338c8a9a5SSteve French int ret; 644438c8a9a5SSteve French ssize_t nbytes; 644538c8a9a5SSteve French 644681a94b27SNamjae Jeon data_buf = kvzalloc(length, GFP_KERNEL); 644738c8a9a5SSteve French if (!data_buf) 644838c8a9a5SSteve French return -ENOMEM; 644938c8a9a5SSteve French 645038c8a9a5SSteve French ret = ksmbd_conn_rdma_read(work->conn, data_buf, length, 645138c8a9a5SSteve French (struct smb2_buffer_desc_v1 *) 645238c8a9a5SSteve French ((char *)req + le16_to_cpu(req->WriteChannelInfoOffset)), 645338c8a9a5SSteve French le16_to_cpu(req->WriteChannelInfoLength)); 645438c8a9a5SSteve French if (ret < 0) { 645538c8a9a5SSteve French kvfree(data_buf); 645638c8a9a5SSteve French return ret; 645738c8a9a5SSteve French } 645838c8a9a5SSteve French 645938c8a9a5SSteve French ret = ksmbd_vfs_write(work, fp, data_buf, length, &offset, sync, &nbytes); 646038c8a9a5SSteve French kvfree(data_buf); 646138c8a9a5SSteve French if (ret < 0) 646238c8a9a5SSteve French return ret; 646338c8a9a5SSteve French 646438c8a9a5SSteve French return nbytes; 646538c8a9a5SSteve French } 646638c8a9a5SSteve French 646738c8a9a5SSteve French /** 646838c8a9a5SSteve French * smb2_write() - handler for smb2 write from file 646938c8a9a5SSteve French * @work: smb work containing write command buffer 647038c8a9a5SSteve French * 647138c8a9a5SSteve French * Return: 0 on success, otherwise error 647238c8a9a5SSteve French */ 647338c8a9a5SSteve French int smb2_write(struct ksmbd_work *work) 647438c8a9a5SSteve French { 647538c8a9a5SSteve French struct smb2_write_req *req; 647638c8a9a5SSteve French struct smb2_write_rsp *rsp; 647738c8a9a5SSteve French struct ksmbd_file *fp = NULL; 647838c8a9a5SSteve French loff_t offset; 647938c8a9a5SSteve French size_t length; 648038c8a9a5SSteve French ssize_t nbytes; 648138c8a9a5SSteve French char *data_buf; 648238c8a9a5SSteve French bool writethrough = false, is_rdma_channel = false; 648338c8a9a5SSteve French int err = 0; 648438c8a9a5SSteve French unsigned int max_write_size = work->conn->vals->max_write_size; 648538c8a9a5SSteve French 648638c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 648738c8a9a5SSteve French 648838c8a9a5SSteve French if (test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_PIPE)) { 648938c8a9a5SSteve French ksmbd_debug(SMB, "IPC pipe write request\n"); 649038c8a9a5SSteve French return smb2_write_pipe(work); 649138c8a9a5SSteve French } 649238c8a9a5SSteve French 649338c8a9a5SSteve French offset = le64_to_cpu(req->Offset); 649438c8a9a5SSteve French length = le32_to_cpu(req->Length); 649538c8a9a5SSteve French 649638c8a9a5SSteve French if (req->Channel == SMB2_CHANNEL_RDMA_V1 || 649738c8a9a5SSteve French req->Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE) { 649838c8a9a5SSteve French is_rdma_channel = true; 649938c8a9a5SSteve French max_write_size = get_smbd_max_read_write_size(); 650038c8a9a5SSteve French length = le32_to_cpu(req->RemainingBytes); 650138c8a9a5SSteve French } 650238c8a9a5SSteve French 650338c8a9a5SSteve French if (is_rdma_channel == true) { 650438c8a9a5SSteve French unsigned int ch_offset = le16_to_cpu(req->WriteChannelInfoOffset); 650538c8a9a5SSteve French 650638c8a9a5SSteve French if (req->Length != 0 || req->DataOffset != 0 || 650738c8a9a5SSteve French ch_offset < offsetof(struct smb2_write_req, Buffer)) { 650838c8a9a5SSteve French err = -EINVAL; 650938c8a9a5SSteve French goto out; 651038c8a9a5SSteve French } 651138c8a9a5SSteve French err = smb2_set_remote_key_for_rdma(work, 651238c8a9a5SSteve French (struct smb2_buffer_desc_v1 *) 651338c8a9a5SSteve French ((char *)req + ch_offset), 651438c8a9a5SSteve French req->Channel, 651538c8a9a5SSteve French req->WriteChannelInfoLength); 651638c8a9a5SSteve French if (err) 651738c8a9a5SSteve French goto out; 651838c8a9a5SSteve French } 651938c8a9a5SSteve French 652038c8a9a5SSteve French if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) { 652138c8a9a5SSteve French ksmbd_debug(SMB, "User does not have write permission\n"); 652238c8a9a5SSteve French err = -EACCES; 652338c8a9a5SSteve French goto out; 652438c8a9a5SSteve French } 652538c8a9a5SSteve French 652638c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); 652738c8a9a5SSteve French if (!fp) { 652838c8a9a5SSteve French err = -ENOENT; 652938c8a9a5SSteve French goto out; 653038c8a9a5SSteve French } 653138c8a9a5SSteve French 653238c8a9a5SSteve French if (!(fp->daccess & (FILE_WRITE_DATA_LE | FILE_READ_ATTRIBUTES_LE))) { 653338c8a9a5SSteve French pr_err("Not permitted to write : 0x%x\n", fp->daccess); 653438c8a9a5SSteve French err = -EACCES; 653538c8a9a5SSteve French goto out; 653638c8a9a5SSteve French } 653738c8a9a5SSteve French 653838c8a9a5SSteve French if (length > max_write_size) { 653938c8a9a5SSteve French ksmbd_debug(SMB, "limiting write size to max size(%u)\n", 654038c8a9a5SSteve French max_write_size); 654138c8a9a5SSteve French err = -EINVAL; 654238c8a9a5SSteve French goto out; 654338c8a9a5SSteve French } 654438c8a9a5SSteve French 654538c8a9a5SSteve French ksmbd_debug(SMB, "flags %u\n", le32_to_cpu(req->Flags)); 654638c8a9a5SSteve French if (le32_to_cpu(req->Flags) & SMB2_WRITEFLAG_WRITE_THROUGH) 654738c8a9a5SSteve French writethrough = true; 654838c8a9a5SSteve French 654938c8a9a5SSteve French if (is_rdma_channel == false) { 655038c8a9a5SSteve French if (le16_to_cpu(req->DataOffset) < 655138c8a9a5SSteve French offsetof(struct smb2_write_req, Buffer)) { 655238c8a9a5SSteve French err = -EINVAL; 655338c8a9a5SSteve French goto out; 655438c8a9a5SSteve French } 655538c8a9a5SSteve French 655638c8a9a5SSteve French data_buf = (char *)(((char *)&req->hdr.ProtocolId) + 655738c8a9a5SSteve French le16_to_cpu(req->DataOffset)); 655838c8a9a5SSteve French 655938c8a9a5SSteve French ksmbd_debug(SMB, "filename %pD, offset %lld, len %zu\n", 656038c8a9a5SSteve French fp->filp, offset, length); 656138c8a9a5SSteve French err = ksmbd_vfs_write(work, fp, data_buf, length, &offset, 656238c8a9a5SSteve French writethrough, &nbytes); 656338c8a9a5SSteve French if (err < 0) 656438c8a9a5SSteve French goto out; 656538c8a9a5SSteve French } else { 656638c8a9a5SSteve French /* read data from the client using rdma channel, and 656738c8a9a5SSteve French * write the data. 656838c8a9a5SSteve French */ 656938c8a9a5SSteve French nbytes = smb2_write_rdma_channel(work, req, fp, offset, length, 657038c8a9a5SSteve French writethrough); 657138c8a9a5SSteve French if (nbytes < 0) { 657238c8a9a5SSteve French err = (int)nbytes; 657338c8a9a5SSteve French goto out; 657438c8a9a5SSteve French } 657538c8a9a5SSteve French } 657638c8a9a5SSteve French 657738c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(17); 657838c8a9a5SSteve French rsp->DataOffset = 0; 657938c8a9a5SSteve French rsp->Reserved = 0; 658038c8a9a5SSteve French rsp->DataLength = cpu_to_le32(nbytes); 658138c8a9a5SSteve French rsp->DataRemaining = 0; 658238c8a9a5SSteve French rsp->Reserved2 = 0; 6583e2b76ab8SNamjae Jeon err = ksmbd_iov_pin_rsp(work, rsp, offsetof(struct smb2_write_rsp, Buffer)); 6584e2b76ab8SNamjae Jeon if (err) 6585e2b76ab8SNamjae Jeon goto out; 658638c8a9a5SSteve French ksmbd_fd_put(work, fp); 658738c8a9a5SSteve French return 0; 658838c8a9a5SSteve French 658938c8a9a5SSteve French out: 659038c8a9a5SSteve French if (err == -EAGAIN) 659138c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT; 659238c8a9a5SSteve French else if (err == -ENOSPC || err == -EFBIG) 659338c8a9a5SSteve French rsp->hdr.Status = STATUS_DISK_FULL; 659438c8a9a5SSteve French else if (err == -ENOENT) 659538c8a9a5SSteve French rsp->hdr.Status = STATUS_FILE_CLOSED; 659638c8a9a5SSteve French else if (err == -EACCES) 659738c8a9a5SSteve French rsp->hdr.Status = STATUS_ACCESS_DENIED; 659838c8a9a5SSteve French else if (err == -ESHARE) 659938c8a9a5SSteve French rsp->hdr.Status = STATUS_SHARING_VIOLATION; 660038c8a9a5SSteve French else if (err == -EINVAL) 660138c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_PARAMETER; 660238c8a9a5SSteve French else 660338c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 660438c8a9a5SSteve French 660538c8a9a5SSteve French smb2_set_err_rsp(work); 660638c8a9a5SSteve French ksmbd_fd_put(work, fp); 660738c8a9a5SSteve French return err; 660838c8a9a5SSteve French } 660938c8a9a5SSteve French 661038c8a9a5SSteve French /** 661138c8a9a5SSteve French * smb2_flush() - handler for smb2 flush file - fsync 661238c8a9a5SSteve French * @work: smb work containing flush command buffer 661338c8a9a5SSteve French * 661438c8a9a5SSteve French * Return: 0 on success, otherwise error 661538c8a9a5SSteve French */ 661638c8a9a5SSteve French int smb2_flush(struct ksmbd_work *work) 661738c8a9a5SSteve French { 661838c8a9a5SSteve French struct smb2_flush_req *req; 661938c8a9a5SSteve French struct smb2_flush_rsp *rsp; 662038c8a9a5SSteve French int err; 662138c8a9a5SSteve French 662238c8a9a5SSteve French WORK_BUFFERS(work, req, rsp); 662338c8a9a5SSteve French 662438c8a9a5SSteve French ksmbd_debug(SMB, "SMB2_FLUSH called for fid %llu\n", req->VolatileFileId); 662538c8a9a5SSteve French 662638c8a9a5SSteve French err = ksmbd_vfs_fsync(work, req->VolatileFileId, req->PersistentFileId); 662738c8a9a5SSteve French if (err) 662838c8a9a5SSteve French goto out; 662938c8a9a5SSteve French 663038c8a9a5SSteve French rsp->StructureSize = cpu_to_le16(4); 663138c8a9a5SSteve French rsp->Reserved = 0; 6632e2b76ab8SNamjae Jeon return ksmbd_iov_pin_rsp(work, rsp, sizeof(struct smb2_flush_rsp)); 663338c8a9a5SSteve French 663438c8a9a5SSteve French out: 663538c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_HANDLE; 663638c8a9a5SSteve French smb2_set_err_rsp(work); 663738c8a9a5SSteve French return err; 663838c8a9a5SSteve French } 663938c8a9a5SSteve French 664038c8a9a5SSteve French /** 664138c8a9a5SSteve French * smb2_cancel() - handler for smb2 cancel command 664238c8a9a5SSteve French * @work: smb work containing cancel command buffer 664338c8a9a5SSteve French * 664438c8a9a5SSteve French * Return: 0 on success, otherwise error 664538c8a9a5SSteve French */ 664638c8a9a5SSteve French int smb2_cancel(struct ksmbd_work *work) 664738c8a9a5SSteve French { 664838c8a9a5SSteve French struct ksmbd_conn *conn = work->conn; 664938c8a9a5SSteve French struct smb2_hdr *hdr = smb2_get_msg(work->request_buf); 665038c8a9a5SSteve French struct smb2_hdr *chdr; 665138c8a9a5SSteve French struct ksmbd_work *iter; 665238c8a9a5SSteve French struct list_head *command_list; 665338c8a9a5SSteve French 66547b7d709eSNamjae Jeon if (work->next_smb2_rcv_hdr_off) 66557b7d709eSNamjae Jeon hdr = ksmbd_resp_buf_next(work); 66567b7d709eSNamjae Jeon 665738c8a9a5SSteve French ksmbd_debug(SMB, "smb2 cancel called on mid %llu, async flags 0x%x\n", 665838c8a9a5SSteve French hdr->MessageId, hdr->Flags); 665938c8a9a5SSteve French 666038c8a9a5SSteve French if (hdr->Flags & SMB2_FLAGS_ASYNC_COMMAND) { 666138c8a9a5SSteve French command_list = &conn->async_requests; 666238c8a9a5SSteve French 666338c8a9a5SSteve French spin_lock(&conn->request_lock); 666438c8a9a5SSteve French list_for_each_entry(iter, command_list, 666538c8a9a5SSteve French async_request_entry) { 666638c8a9a5SSteve French chdr = smb2_get_msg(iter->request_buf); 666738c8a9a5SSteve French 666838c8a9a5SSteve French if (iter->async_id != 666938c8a9a5SSteve French le64_to_cpu(hdr->Id.AsyncId)) 667038c8a9a5SSteve French continue; 667138c8a9a5SSteve French 667238c8a9a5SSteve French ksmbd_debug(SMB, 667338c8a9a5SSteve French "smb2 with AsyncId %llu cancelled command = 0x%x\n", 667438c8a9a5SSteve French le64_to_cpu(hdr->Id.AsyncId), 667538c8a9a5SSteve French le16_to_cpu(chdr->Command)); 667638c8a9a5SSteve French iter->state = KSMBD_WORK_CANCELLED; 667738c8a9a5SSteve French if (iter->cancel_fn) 667838c8a9a5SSteve French iter->cancel_fn(iter->cancel_argv); 667938c8a9a5SSteve French break; 668038c8a9a5SSteve French } 668138c8a9a5SSteve French spin_unlock(&conn->request_lock); 668238c8a9a5SSteve French } else { 668338c8a9a5SSteve French command_list = &conn->requests; 668438c8a9a5SSteve French 668538c8a9a5SSteve French spin_lock(&conn->request_lock); 668638c8a9a5SSteve French list_for_each_entry(iter, command_list, request_entry) { 668738c8a9a5SSteve French chdr = smb2_get_msg(iter->request_buf); 668838c8a9a5SSteve French 668938c8a9a5SSteve French if (chdr->MessageId != hdr->MessageId || 669038c8a9a5SSteve French iter == work) 669138c8a9a5SSteve French continue; 669238c8a9a5SSteve French 669338c8a9a5SSteve French ksmbd_debug(SMB, 669438c8a9a5SSteve French "smb2 with mid %llu cancelled command = 0x%x\n", 669538c8a9a5SSteve French le64_to_cpu(hdr->MessageId), 669638c8a9a5SSteve French le16_to_cpu(chdr->Command)); 669738c8a9a5SSteve French iter->state = KSMBD_WORK_CANCELLED; 669838c8a9a5SSteve French break; 669938c8a9a5SSteve French } 670038c8a9a5SSteve French spin_unlock(&conn->request_lock); 670138c8a9a5SSteve French } 670238c8a9a5SSteve French 670338c8a9a5SSteve French /* For SMB2_CANCEL command itself send no response*/ 670438c8a9a5SSteve French work->send_no_response = 1; 670538c8a9a5SSteve French return 0; 670638c8a9a5SSteve French } 670738c8a9a5SSteve French 670838c8a9a5SSteve French struct file_lock *smb_flock_init(struct file *f) 670938c8a9a5SSteve French { 671038c8a9a5SSteve French struct file_lock *fl; 671138c8a9a5SSteve French 671238c8a9a5SSteve French fl = locks_alloc_lock(); 671338c8a9a5SSteve French if (!fl) 671438c8a9a5SSteve French goto out; 671538c8a9a5SSteve French 671638c8a9a5SSteve French locks_init_lock(fl); 671738c8a9a5SSteve French 671838c8a9a5SSteve French fl->fl_owner = f; 671938c8a9a5SSteve French fl->fl_pid = current->tgid; 672038c8a9a5SSteve French fl->fl_file = f; 672138c8a9a5SSteve French fl->fl_flags = FL_POSIX; 672238c8a9a5SSteve French fl->fl_ops = NULL; 672338c8a9a5SSteve French fl->fl_lmops = NULL; 672438c8a9a5SSteve French 672538c8a9a5SSteve French out: 672638c8a9a5SSteve French return fl; 672738c8a9a5SSteve French } 672838c8a9a5SSteve French 672938c8a9a5SSteve French static int smb2_set_flock_flags(struct file_lock *flock, int flags) 673038c8a9a5SSteve French { 673138c8a9a5SSteve French int cmd = -EINVAL; 673238c8a9a5SSteve French 673338c8a9a5SSteve French /* Checking for wrong flag combination during lock request*/ 673438c8a9a5SSteve French switch (flags) { 673538c8a9a5SSteve French case SMB2_LOCKFLAG_SHARED: 673638c8a9a5SSteve French ksmbd_debug(SMB, "received shared request\n"); 673738c8a9a5SSteve French cmd = F_SETLKW; 673838c8a9a5SSteve French flock->fl_type = F_RDLCK; 673938c8a9a5SSteve French flock->fl_flags |= FL_SLEEP; 674038c8a9a5SSteve French break; 674138c8a9a5SSteve French case SMB2_LOCKFLAG_EXCLUSIVE: 674238c8a9a5SSteve French ksmbd_debug(SMB, "received exclusive request\n"); 674338c8a9a5SSteve French cmd = F_SETLKW; 674438c8a9a5SSteve French flock->fl_type = F_WRLCK; 674538c8a9a5SSteve French flock->fl_flags |= FL_SLEEP; 674638c8a9a5SSteve French break; 674738c8a9a5SSteve French case SMB2_LOCKFLAG_SHARED | SMB2_LOCKFLAG_FAIL_IMMEDIATELY: 674838c8a9a5SSteve French ksmbd_debug(SMB, 674938c8a9a5SSteve French "received shared & fail immediately request\n"); 675038c8a9a5SSteve French cmd = F_SETLK; 675138c8a9a5SSteve French flock->fl_type = F_RDLCK; 675238c8a9a5SSteve French break; 675338c8a9a5SSteve French case SMB2_LOCKFLAG_EXCLUSIVE | SMB2_LOCKFLAG_FAIL_IMMEDIATELY: 675438c8a9a5SSteve French ksmbd_debug(SMB, 675538c8a9a5SSteve French "received exclusive & fail immediately request\n"); 675638c8a9a5SSteve French cmd = F_SETLK; 675738c8a9a5SSteve French flock->fl_type = F_WRLCK; 675838c8a9a5SSteve French break; 675938c8a9a5SSteve French case SMB2_LOCKFLAG_UNLOCK: 676038c8a9a5SSteve French ksmbd_debug(SMB, "received unlock request\n"); 676138c8a9a5SSteve French flock->fl_type = F_UNLCK; 676238c8a9a5SSteve French cmd = F_SETLK; 676338c8a9a5SSteve French break; 676438c8a9a5SSteve French } 676538c8a9a5SSteve French 676638c8a9a5SSteve French return cmd; 676738c8a9a5SSteve French } 676838c8a9a5SSteve French 676938c8a9a5SSteve French static struct ksmbd_lock *smb2_lock_init(struct file_lock *flock, 677038c8a9a5SSteve French unsigned int cmd, int flags, 677138c8a9a5SSteve French struct list_head *lock_list) 677238c8a9a5SSteve French { 677338c8a9a5SSteve French struct ksmbd_lock *lock; 677438c8a9a5SSteve French 677538c8a9a5SSteve French lock = kzalloc(sizeof(struct ksmbd_lock), GFP_KERNEL); 677638c8a9a5SSteve French if (!lock) 677738c8a9a5SSteve French return NULL; 677838c8a9a5SSteve French 677938c8a9a5SSteve French lock->cmd = cmd; 678038c8a9a5SSteve French lock->fl = flock; 678138c8a9a5SSteve French lock->start = flock->fl_start; 678238c8a9a5SSteve French lock->end = flock->fl_end; 678338c8a9a5SSteve French lock->flags = flags; 678438c8a9a5SSteve French if (lock->start == lock->end) 678538c8a9a5SSteve French lock->zero_len = 1; 678638c8a9a5SSteve French INIT_LIST_HEAD(&lock->clist); 678738c8a9a5SSteve French INIT_LIST_HEAD(&lock->flist); 678838c8a9a5SSteve French INIT_LIST_HEAD(&lock->llist); 678938c8a9a5SSteve French list_add_tail(&lock->llist, lock_list); 679038c8a9a5SSteve French 679138c8a9a5SSteve French return lock; 679238c8a9a5SSteve French } 679338c8a9a5SSteve French 679438c8a9a5SSteve French static void smb2_remove_blocked_lock(void **argv) 679538c8a9a5SSteve French { 679638c8a9a5SSteve French struct file_lock *flock = (struct file_lock *)argv[0]; 679738c8a9a5SSteve French 679838c8a9a5SSteve French ksmbd_vfs_posix_lock_unblock(flock); 679938c8a9a5SSteve French wake_up(&flock->fl_wait); 680038c8a9a5SSteve French } 680138c8a9a5SSteve French 680238c8a9a5SSteve French static inline bool lock_defer_pending(struct file_lock *fl) 680338c8a9a5SSteve French { 680438c8a9a5SSteve French /* check pending lock waiters */ 680538c8a9a5SSteve French return waitqueue_active(&fl->fl_wait); 680638c8a9a5SSteve French } 680738c8a9a5SSteve French 680838c8a9a5SSteve French /** 680938c8a9a5SSteve French * smb2_lock() - handler for smb2 file lock command 681038c8a9a5SSteve French * @work: smb work containing lock command buffer 681138c8a9a5SSteve French * 681238c8a9a5SSteve French * Return: 0 on success, otherwise error 681338c8a9a5SSteve French */ 681438c8a9a5SSteve French int smb2_lock(struct ksmbd_work *work) 681538c8a9a5SSteve French { 68167b7d709eSNamjae Jeon struct smb2_lock_req *req; 68177b7d709eSNamjae Jeon struct smb2_lock_rsp *rsp; 681838c8a9a5SSteve French struct smb2_lock_element *lock_ele; 681938c8a9a5SSteve French struct ksmbd_file *fp = NULL; 682038c8a9a5SSteve French struct file_lock *flock = NULL; 682138c8a9a5SSteve French struct file *filp = NULL; 682238c8a9a5SSteve French int lock_count; 682338c8a9a5SSteve French int flags = 0; 682438c8a9a5SSteve French int cmd = 0; 682538c8a9a5SSteve French int err = -EIO, i, rc = 0; 682638c8a9a5SSteve French u64 lock_start, lock_length; 682738c8a9a5SSteve French struct ksmbd_lock *smb_lock = NULL, *cmp_lock, *tmp, *tmp2; 682838c8a9a5SSteve French struct ksmbd_conn *conn; 682938c8a9a5SSteve French int nolock = 0; 683038c8a9a5SSteve French LIST_HEAD(lock_list); 683138c8a9a5SSteve French LIST_HEAD(rollback_list); 683238c8a9a5SSteve French int prior_lock = 0; 683338c8a9a5SSteve French 68347b7d709eSNamjae Jeon WORK_BUFFERS(work, req, rsp); 68357b7d709eSNamjae Jeon 683638c8a9a5SSteve French ksmbd_debug(SMB, "Received lock request\n"); 683738c8a9a5SSteve French fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId); 683838c8a9a5SSteve French if (!fp) { 683938c8a9a5SSteve French ksmbd_debug(SMB, "Invalid file id for lock : %llu\n", req->VolatileFileId); 684038c8a9a5SSteve French err = -ENOENT; 684138c8a9a5SSteve French goto out2; 684238c8a9a5SSteve French } 684338c8a9a5SSteve French 684438c8a9a5SSteve French filp = fp->filp; 684538c8a9a5SSteve French lock_count = le16_to_cpu(req->LockCount); 684638c8a9a5SSteve French lock_ele = req->locks; 684738c8a9a5SSteve French 684838c8a9a5SSteve French ksmbd_debug(SMB, "lock count is %d\n", lock_count); 684938c8a9a5SSteve French if (!lock_count) { 685038c8a9a5SSteve French err = -EINVAL; 685138c8a9a5SSteve French goto out2; 685238c8a9a5SSteve French } 685338c8a9a5SSteve French 685438c8a9a5SSteve French for (i = 0; i < lock_count; i++) { 685538c8a9a5SSteve French flags = le32_to_cpu(lock_ele[i].Flags); 685638c8a9a5SSteve French 685738c8a9a5SSteve French flock = smb_flock_init(filp); 685838c8a9a5SSteve French if (!flock) 685938c8a9a5SSteve French goto out; 686038c8a9a5SSteve French 686138c8a9a5SSteve French cmd = smb2_set_flock_flags(flock, flags); 686238c8a9a5SSteve French 686338c8a9a5SSteve French lock_start = le64_to_cpu(lock_ele[i].Offset); 686438c8a9a5SSteve French lock_length = le64_to_cpu(lock_ele[i].Length); 686538c8a9a5SSteve French if (lock_start > U64_MAX - lock_length) { 686638c8a9a5SSteve French pr_err("Invalid lock range requested\n"); 686738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE; 686838c8a9a5SSteve French locks_free_lock(flock); 686938c8a9a5SSteve French goto out; 687038c8a9a5SSteve French } 687138c8a9a5SSteve French 687238c8a9a5SSteve French if (lock_start > OFFSET_MAX) 687338c8a9a5SSteve French flock->fl_start = OFFSET_MAX; 687438c8a9a5SSteve French else 687538c8a9a5SSteve French flock->fl_start = lock_start; 687638c8a9a5SSteve French 687738c8a9a5SSteve French lock_length = le64_to_cpu(lock_ele[i].Length); 687838c8a9a5SSteve French if (lock_length > OFFSET_MAX - flock->fl_start) 687938c8a9a5SSteve French lock_length = OFFSET_MAX - flock->fl_start; 688038c8a9a5SSteve French 688138c8a9a5SSteve French flock->fl_end = flock->fl_start + lock_length; 688238c8a9a5SSteve French 688338c8a9a5SSteve French if (flock->fl_end < flock->fl_start) { 688438c8a9a5SSteve French ksmbd_debug(SMB, 688538c8a9a5SSteve French "the end offset(%llx) is smaller than the start offset(%llx)\n", 688638c8a9a5SSteve French flock->fl_end, flock->fl_start); 688738c8a9a5SSteve French rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE; 688838c8a9a5SSteve French locks_free_lock(flock); 688938c8a9a5SSteve French goto out; 689038c8a9a5SSteve French } 689138c8a9a5SSteve French 689238c8a9a5SSteve French /* Check conflict locks in one request */ 689338c8a9a5SSteve French list_for_each_entry(cmp_lock, &lock_list, llist) { 689438c8a9a5SSteve French if (cmp_lock->fl->fl_start <= flock->fl_start && 689538c8a9a5SSteve French cmp_lock->fl->fl_end >= flock->fl_end) { 689638c8a9a5SSteve French if (cmp_lock->fl->fl_type != F_UNLCK && 689738c8a9a5SSteve French flock->fl_type != F_UNLCK) { 689838c8a9a5SSteve French pr_err("conflict two locks in one request\n"); 689938c8a9a5SSteve French err = -EINVAL; 690038c8a9a5SSteve French locks_free_lock(flock); 690138c8a9a5SSteve French goto out; 690238c8a9a5SSteve French } 690338c8a9a5SSteve French } 690438c8a9a5SSteve French } 690538c8a9a5SSteve French 690638c8a9a5SSteve French smb_lock = smb2_lock_init(flock, cmd, flags, &lock_list); 690738c8a9a5SSteve French if (!smb_lock) { 690838c8a9a5SSteve French err = -EINVAL; 690938c8a9a5SSteve French locks_free_lock(flock); 691038c8a9a5SSteve French goto out; 691138c8a9a5SSteve French } 691238c8a9a5SSteve French } 691338c8a9a5SSteve French 691438c8a9a5SSteve French list_for_each_entry_safe(smb_lock, tmp, &lock_list, llist) { 691538c8a9a5SSteve French if (smb_lock->cmd < 0) { 691638c8a9a5SSteve French err = -EINVAL; 691738c8a9a5SSteve French goto out; 691838c8a9a5SSteve French } 691938c8a9a5SSteve French 692038c8a9a5SSteve French if (!(smb_lock->flags & SMB2_LOCKFLAG_MASK)) { 692138c8a9a5SSteve French err = -EINVAL; 692238c8a9a5SSteve French goto out; 692338c8a9a5SSteve French } 692438c8a9a5SSteve French 692538c8a9a5SSteve French if ((prior_lock & (SMB2_LOCKFLAG_EXCLUSIVE | SMB2_LOCKFLAG_SHARED) && 692638c8a9a5SSteve French smb_lock->flags & SMB2_LOCKFLAG_UNLOCK) || 692738c8a9a5SSteve French (prior_lock == SMB2_LOCKFLAG_UNLOCK && 692838c8a9a5SSteve French !(smb_lock->flags & SMB2_LOCKFLAG_UNLOCK))) { 692938c8a9a5SSteve French err = -EINVAL; 693038c8a9a5SSteve French goto out; 693138c8a9a5SSteve French } 693238c8a9a5SSteve French 693338c8a9a5SSteve French prior_lock = smb_lock->flags; 693438c8a9a5SSteve French 693538c8a9a5SSteve French if (!(smb_lock->flags & SMB2_LOCKFLAG_UNLOCK) && 693638c8a9a5SSteve French !(smb_lock->flags & SMB2_LOCKFLAG_FAIL_IMMEDIATELY)) 693738c8a9a5SSteve French goto no_check_cl; 693838c8a9a5SSteve French 693938c8a9a5SSteve French nolock = 1; 694038c8a9a5SSteve French /* check locks in connection list */ 694138c8a9a5SSteve French down_read(&conn_list_lock); 694238c8a9a5SSteve French list_for_each_entry(conn, &conn_list, conns_list) { 694338c8a9a5SSteve French spin_lock(&conn->llist_lock); 694438c8a9a5SSteve French list_for_each_entry_safe(cmp_lock, tmp2, &conn->lock_list, clist) { 694538c8a9a5SSteve French if (file_inode(cmp_lock->fl->fl_file) != 694638c8a9a5SSteve French file_inode(smb_lock->fl->fl_file)) 694738c8a9a5SSteve French continue; 694838c8a9a5SSteve French 694938c8a9a5SSteve French if (smb_lock->fl->fl_type == F_UNLCK) { 695038c8a9a5SSteve French if (cmp_lock->fl->fl_file == smb_lock->fl->fl_file && 695138c8a9a5SSteve French cmp_lock->start == smb_lock->start && 695238c8a9a5SSteve French cmp_lock->end == smb_lock->end && 695338c8a9a5SSteve French !lock_defer_pending(cmp_lock->fl)) { 695438c8a9a5SSteve French nolock = 0; 695538c8a9a5SSteve French list_del(&cmp_lock->flist); 695638c8a9a5SSteve French list_del(&cmp_lock->clist); 695738c8a9a5SSteve French spin_unlock(&conn->llist_lock); 695838c8a9a5SSteve French up_read(&conn_list_lock); 695938c8a9a5SSteve French 696038c8a9a5SSteve French locks_free_lock(cmp_lock->fl); 696138c8a9a5SSteve French kfree(cmp_lock); 696238c8a9a5SSteve French goto out_check_cl; 696338c8a9a5SSteve French } 696438c8a9a5SSteve French continue; 696538c8a9a5SSteve French } 696638c8a9a5SSteve French 696738c8a9a5SSteve French if (cmp_lock->fl->fl_file == smb_lock->fl->fl_file) { 696838c8a9a5SSteve French if (smb_lock->flags & SMB2_LOCKFLAG_SHARED) 696938c8a9a5SSteve French continue; 697038c8a9a5SSteve French } else { 697138c8a9a5SSteve French if (cmp_lock->flags & SMB2_LOCKFLAG_SHARED) 697238c8a9a5SSteve French continue; 697338c8a9a5SSteve French } 697438c8a9a5SSteve French 697538c8a9a5SSteve French /* check zero byte lock range */ 697638c8a9a5SSteve French if (cmp_lock->zero_len && !smb_lock->zero_len && 697738c8a9a5SSteve French cmp_lock->start > smb_lock->start && 697838c8a9a5SSteve French cmp_lock->start < smb_lock->end) { 697938c8a9a5SSteve French spin_unlock(&conn->llist_lock); 698038c8a9a5SSteve French up_read(&conn_list_lock); 698138c8a9a5SSteve French pr_err("previous lock conflict with zero byte lock range\n"); 698238c8a9a5SSteve French goto out; 698338c8a9a5SSteve French } 698438c8a9a5SSteve French 698538c8a9a5SSteve French if (smb_lock->zero_len && !cmp_lock->zero_len && 698638c8a9a5SSteve French smb_lock->start > cmp_lock->start && 698738c8a9a5SSteve French smb_lock->start < cmp_lock->end) { 698838c8a9a5SSteve French spin_unlock(&conn->llist_lock); 698938c8a9a5SSteve French up_read(&conn_list_lock); 699038c8a9a5SSteve French pr_err("current lock conflict with zero byte lock range\n"); 699138c8a9a5SSteve French goto out; 699238c8a9a5SSteve French } 699338c8a9a5SSteve French 699438c8a9a5SSteve French if (((cmp_lock->start <= smb_lock->start && 699538c8a9a5SSteve French cmp_lock->end > smb_lock->start) || 699638c8a9a5SSteve French (cmp_lock->start < smb_lock->end && 699738c8a9a5SSteve French cmp_lock->end >= smb_lock->end)) && 699838c8a9a5SSteve French !cmp_lock->zero_len && !smb_lock->zero_len) { 699938c8a9a5SSteve French spin_unlock(&conn->llist_lock); 700038c8a9a5SSteve French up_read(&conn_list_lock); 700138c8a9a5SSteve French pr_err("Not allow lock operation on exclusive lock range\n"); 700238c8a9a5SSteve French goto out; 700338c8a9a5SSteve French } 700438c8a9a5SSteve French } 700538c8a9a5SSteve French spin_unlock(&conn->llist_lock); 700638c8a9a5SSteve French } 700738c8a9a5SSteve French up_read(&conn_list_lock); 700838c8a9a5SSteve French out_check_cl: 700938c8a9a5SSteve French if (smb_lock->fl->fl_type == F_UNLCK && nolock) { 701038c8a9a5SSteve French pr_err("Try to unlock nolocked range\n"); 701138c8a9a5SSteve French rsp->hdr.Status = STATUS_RANGE_NOT_LOCKED; 701238c8a9a5SSteve French goto out; 701338c8a9a5SSteve French } 701438c8a9a5SSteve French 701538c8a9a5SSteve French no_check_cl: 701638c8a9a5SSteve French if (smb_lock->zero_len) { 701738c8a9a5SSteve French err = 0; 701838c8a9a5SSteve French goto skip; 701938c8a9a5SSteve French } 702038c8a9a5SSteve French 702138c8a9a5SSteve French flock = smb_lock->fl; 702238c8a9a5SSteve French list_del(&smb_lock->llist); 702338c8a9a5SSteve French retry: 702438c8a9a5SSteve French rc = vfs_lock_file(filp, smb_lock->cmd, flock, NULL); 702538c8a9a5SSteve French skip: 702638c8a9a5SSteve French if (flags & SMB2_LOCKFLAG_UNLOCK) { 702738c8a9a5SSteve French if (!rc) { 702838c8a9a5SSteve French ksmbd_debug(SMB, "File unlocked\n"); 702938c8a9a5SSteve French } else if (rc == -ENOENT) { 703038c8a9a5SSteve French rsp->hdr.Status = STATUS_NOT_LOCKED; 703138c8a9a5SSteve French goto out; 703238c8a9a5SSteve French } 703338c8a9a5SSteve French locks_free_lock(flock); 703438c8a9a5SSteve French kfree(smb_lock); 703538c8a9a5SSteve French } else { 703638c8a9a5SSteve French if (rc == FILE_LOCK_DEFERRED) { 703738c8a9a5SSteve French void **argv; 703838c8a9a5SSteve French 703938c8a9a5SSteve French ksmbd_debug(SMB, 704038c8a9a5SSteve French "would have to wait for getting lock\n"); 704138c8a9a5SSteve French list_add(&smb_lock->llist, &rollback_list); 704238c8a9a5SSteve French 704338c8a9a5SSteve French argv = kmalloc(sizeof(void *), GFP_KERNEL); 704438c8a9a5SSteve French if (!argv) { 704538c8a9a5SSteve French err = -ENOMEM; 704638c8a9a5SSteve French goto out; 704738c8a9a5SSteve French } 704838c8a9a5SSteve French argv[0] = flock; 704938c8a9a5SSteve French 705038c8a9a5SSteve French rc = setup_async_work(work, 705138c8a9a5SSteve French smb2_remove_blocked_lock, 705238c8a9a5SSteve French argv); 705338c8a9a5SSteve French if (rc) { 705438c8a9a5SSteve French err = -ENOMEM; 705538c8a9a5SSteve French goto out; 705638c8a9a5SSteve French } 705738c8a9a5SSteve French spin_lock(&fp->f_lock); 705838c8a9a5SSteve French list_add(&work->fp_entry, &fp->blocked_works); 705938c8a9a5SSteve French spin_unlock(&fp->f_lock); 706038c8a9a5SSteve French 706138c8a9a5SSteve French smb2_send_interim_resp(work, STATUS_PENDING); 706238c8a9a5SSteve French 706338c8a9a5SSteve French ksmbd_vfs_posix_lock_wait(flock); 706438c8a9a5SSteve French 706538c8a9a5SSteve French spin_lock(&fp->f_lock); 706638c8a9a5SSteve French list_del(&work->fp_entry); 706738c8a9a5SSteve French spin_unlock(&fp->f_lock); 706838c8a9a5SSteve French 706938c8a9a5SSteve French if (work->state != KSMBD_WORK_ACTIVE) { 707038c8a9a5SSteve French list_del(&smb_lock->llist); 707138c8a9a5SSteve French locks_free_lock(flock); 707238c8a9a5SSteve French 707338c8a9a5SSteve French if (work->state == KSMBD_WORK_CANCELLED) { 707438c8a9a5SSteve French rsp->hdr.Status = 707538c8a9a5SSteve French STATUS_CANCELLED; 707638c8a9a5SSteve French kfree(smb_lock); 707738c8a9a5SSteve French smb2_send_interim_resp(work, 707838c8a9a5SSteve French STATUS_CANCELLED); 707938c8a9a5SSteve French work->send_no_response = 1; 708038c8a9a5SSteve French goto out; 708138c8a9a5SSteve French } 708238c8a9a5SSteve French 708338c8a9a5SSteve French rsp->hdr.Status = 708438c8a9a5SSteve French STATUS_RANGE_NOT_LOCKED; 708538c8a9a5SSteve French kfree(smb_lock); 708638c8a9a5SSteve French goto out2; 708738c8a9a5SSteve French } 708838c8a9a5SSteve French 708938c8a9a5SSteve French list_del(&smb_lock->llist); 709038c8a9a5SSteve French release_async_work(work); 709138c8a9a5SSteve French goto retry; 709238c8a9a5SSteve French } else if (!rc) { 7093*75ac9a3dSNamjae Jeon list_add(&smb_lock->llist, &rollback_list); 709438c8a9a5SSteve French spin_lock(&work->conn->llist_lock); 709538c8a9a5SSteve French list_add_tail(&smb_lock->clist, 709638c8a9a5SSteve French &work->conn->lock_list); 709738c8a9a5SSteve French list_add_tail(&smb_lock->flist, 709838c8a9a5SSteve French &fp->lock_list); 709938c8a9a5SSteve French spin_unlock(&work->conn->llist_lock); 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->op_state = OPLOCK_STATE_NONE; 804038c8a9a5SSteve French wake_up_interruptible_all(&opinfo->oplock_q); 8041c6981347Sluosili opinfo_put(opinfo); 8042c6981347Sluosili ksmbd_fd_put(work, fp); 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