1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * linux/fs/nfs/nfs3proc.c 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Client-side NFSv3 procedures stubs. 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * Copyright (C) 1997, Olaf Kirch 81da177e4SLinus Torvalds */ 91da177e4SLinus Torvalds 101da177e4SLinus Torvalds #include <linux/mm.h> 111da177e4SLinus Torvalds #include <linux/errno.h> 121da177e4SLinus Torvalds #include <linux/string.h> 131da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 145a0e3ad6STejun Heo #include <linux/slab.h> 151da177e4SLinus Torvalds #include <linux/nfs.h> 161da177e4SLinus Torvalds #include <linux/nfs3.h> 171da177e4SLinus Torvalds #include <linux/nfs_fs.h> 181da177e4SLinus Torvalds #include <linux/nfs_page.h> 191da177e4SLinus Torvalds #include <linux/lockd/bind.h> 20b7fa0554SAndreas Gruenbacher #include <linux/nfs_mount.h> 21d310310cSJeff Layton #include <linux/freezer.h> 220a6be655STejun Heo #include <linux/xattr.h> 231da177e4SLinus Torvalds 24006ea73eSChuck Lever #include "iostat.h" 25f7b422b1SDavid Howells #include "internal.h" 2600a36a10SAnna Schumaker #include "nfs3_fs.h" 27006ea73eSChuck Lever 281da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_PROC 291da177e4SLinus Torvalds 30eb96d5c9SAndy Adamson /* A wrapper to handle the EJUKEBOX error messages */ 311da177e4SLinus Torvalds static int 321da177e4SLinus Torvalds nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags) 331da177e4SLinus Torvalds { 341da177e4SLinus Torvalds int res; 351da177e4SLinus Torvalds do { 361da177e4SLinus Torvalds res = rpc_call_sync(clnt, msg, flags); 37eb96d5c9SAndy Adamson if (res != -EJUKEBOX) 381da177e4SLinus Torvalds break; 39*f5d39b02SPeter Zijlstra __set_current_state(TASK_KILLABLE|TASK_FREEZABLE_UNSAFE); 40*f5d39b02SPeter Zijlstra schedule_timeout(NFS_JUKEBOX_RETRY_TIME); 411da177e4SLinus Torvalds res = -ERESTARTSYS; 42150030b7SMatthew Wilcox } while (!fatal_signal_pending(current)); 431da177e4SLinus Torvalds return res; 441da177e4SLinus Torvalds } 451da177e4SLinus Torvalds 46dead28daSChuck Lever #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags) 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds static int 49006ea73eSChuck Lever nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) 501da177e4SLinus Torvalds { 51eb96d5c9SAndy Adamson if (task->tk_status != -EJUKEBOX) 521da177e4SLinus Torvalds return 0; 53006ea73eSChuck Lever nfs_inc_stats(inode, NFSIOS_DELAY); 541da177e4SLinus Torvalds task->tk_status = 0; 551da177e4SLinus Torvalds rpc_restart_call(task); 561da177e4SLinus Torvalds rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); 571da177e4SLinus Torvalds return 1; 581da177e4SLinus Torvalds } 591da177e4SLinus Torvalds 6003c21733SJ. Bruce Fields static int 6103c21733SJ. Bruce Fields do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, 6203c21733SJ. Bruce Fields struct nfs_fsinfo *info) 6303c21733SJ. Bruce Fields { 64dead28daSChuck Lever struct rpc_message msg = { 65dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 66dead28daSChuck Lever .rpc_argp = fhandle, 67dead28daSChuck Lever .rpc_resp = info, 68dead28daSChuck Lever }; 6903c21733SJ. Bruce Fields int status; 7003c21733SJ. Bruce Fields 713110ff80SHarvey Harrison dprintk("%s: call fsinfo\n", __func__); 7203c21733SJ. Bruce Fields nfs_fattr_init(info->fattr); 73dead28daSChuck Lever status = rpc_call_sync(client, &msg, 0); 743110ff80SHarvey Harrison dprintk("%s: reply fsinfo: %d\n", __func__, status); 7508660043STrond Myklebust if (status == 0 && !(info->fattr->valid & NFS_ATTR_FATTR)) { 76dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 77dead28daSChuck Lever msg.rpc_resp = info->fattr; 78dead28daSChuck Lever status = rpc_call_sync(client, &msg, 0); 793110ff80SHarvey Harrison dprintk("%s: reply getattr: %d\n", __func__, status); 8003c21733SJ. Bruce Fields } 8103c21733SJ. Bruce Fields return status; 8203c21733SJ. Bruce Fields } 8303c21733SJ. Bruce Fields 841da177e4SLinus Torvalds /* 8554ceac45SDavid Howells * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb 861da177e4SLinus Torvalds */ 871da177e4SLinus Torvalds static int 881da177e4SLinus Torvalds nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, 891da177e4SLinus Torvalds struct nfs_fsinfo *info) 901da177e4SLinus Torvalds { 911da177e4SLinus Torvalds int status; 921da177e4SLinus Torvalds 9303c21733SJ. Bruce Fields status = do_proc_get_root(server->client, fhandle, info); 945006a76cSDavid Howells if (status && server->nfs_client->cl_rpcclient != server->client) 955006a76cSDavid Howells status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info); 961da177e4SLinus Torvalds return status; 971da177e4SLinus Torvalds } 981da177e4SLinus Torvalds 991da177e4SLinus Torvalds /* 1001da177e4SLinus Torvalds * One function for each procedure in the NFS protocol. 1011da177e4SLinus Torvalds */ 1021da177e4SLinus Torvalds static int 1031da177e4SLinus Torvalds nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, 1042ef61e0eSAnna Schumaker struct nfs_fattr *fattr, struct inode *inode) 1051da177e4SLinus Torvalds { 106dead28daSChuck Lever struct rpc_message msg = { 107dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], 108dead28daSChuck Lever .rpc_argp = fhandle, 109dead28daSChuck Lever .rpc_resp = fattr, 110dead28daSChuck Lever }; 1111da177e4SLinus Torvalds int status; 112c74dfe97STrond Myklebust unsigned short task_flags = 0; 113c74dfe97STrond Myklebust 114c74dfe97STrond Myklebust /* Is this is an attribute revalidation, subject to softreval? */ 115c74dfe97STrond Myklebust if (inode && (server->flags & NFS_MOUNT_SOFTREVAL)) 116c74dfe97STrond Myklebust task_flags |= RPC_TASK_TIMEOUT; 1171da177e4SLinus Torvalds 1181da177e4SLinus Torvalds dprintk("NFS call getattr\n"); 1190e574af1STrond Myklebust nfs_fattr_init(fattr); 120c74dfe97STrond Myklebust status = rpc_call_sync(server->client, &msg, task_flags); 1211da177e4SLinus Torvalds dprintk("NFS reply getattr: %d\n", status); 1221da177e4SLinus Torvalds return status; 1231da177e4SLinus Torvalds } 1241da177e4SLinus Torvalds 1251da177e4SLinus Torvalds static int 1261da177e4SLinus Torvalds nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, 1271da177e4SLinus Torvalds struct iattr *sattr) 1281da177e4SLinus Torvalds { 1292b0143b5SDavid Howells struct inode *inode = d_inode(dentry); 1301da177e4SLinus Torvalds struct nfs3_sattrargs arg = { 1311da177e4SLinus Torvalds .fh = NFS_FH(inode), 1321da177e4SLinus Torvalds .sattr = sattr, 1331da177e4SLinus Torvalds }; 134dead28daSChuck Lever struct rpc_message msg = { 135dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], 136dead28daSChuck Lever .rpc_argp = &arg, 137dead28daSChuck Lever .rpc_resp = fattr, 138dead28daSChuck Lever }; 1391da177e4SLinus Torvalds int status; 1401da177e4SLinus Torvalds 1411da177e4SLinus Torvalds dprintk("NFS call setattr\n"); 142659bfcd6STrond Myklebust if (sattr->ia_valid & ATTR_FILE) 143659bfcd6STrond Myklebust msg.rpc_cred = nfs_file_cred(sattr->ia_file); 1440e574af1STrond Myklebust nfs_fattr_init(fattr); 145dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 146dbc898aeSchendt if (status == 0) { 147fe1e8dbeSSu Yanjun nfs_setattr_update_inode(inode, sattr, fattr); 148dbc898aeSchendt if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_ACL) 149dbc898aeSchendt nfs_zap_acl_cache(inode); 150dbc898aeSchendt } 1511da177e4SLinus Torvalds dprintk("NFS reply setattr: %d\n", status); 1521da177e4SLinus Torvalds return status; 1531da177e4SLinus Torvalds } 1541da177e4SLinus Torvalds 1551da177e4SLinus Torvalds static int 1565f447cb8STrond Myklebust __nfs3_proc_lookup(struct inode *dir, const char *name, size_t len, 1571775fd3eSDavid Quigley struct nfs_fh *fhandle, struct nfs_fattr *fattr, 1585f447cb8STrond Myklebust unsigned short task_flags) 1591da177e4SLinus Torvalds { 1601da177e4SLinus Torvalds struct nfs3_diropargs arg = { 1611da177e4SLinus Torvalds .fh = NFS_FH(dir), 1625f447cb8STrond Myklebust .name = name, 1635f447cb8STrond Myklebust .len = len 1641da177e4SLinus Torvalds }; 1651da177e4SLinus Torvalds struct nfs3_diropres res = { 1661da177e4SLinus Torvalds .fh = fhandle, 1671da177e4SLinus Torvalds .fattr = fattr 1681da177e4SLinus Torvalds }; 169dead28daSChuck Lever struct rpc_message msg = { 170dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], 171dead28daSChuck Lever .rpc_argp = &arg, 172dead28daSChuck Lever .rpc_resp = &res, 173dead28daSChuck Lever }; 1741da177e4SLinus Torvalds int status; 175f7b37b8bSTrond Myklebust 176e1fb4d05STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 177e1fb4d05STrond Myklebust if (res.dir_attr == NULL) 178e1fb4d05STrond Myklebust return -ENOMEM; 179e1fb4d05STrond Myklebust 1800e574af1STrond Myklebust nfs_fattr_init(fattr); 181f7b37b8bSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags); 182e1fb4d05STrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 183dead28daSChuck Lever if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { 184dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 185dead28daSChuck Lever msg.rpc_argp = fhandle; 186dead28daSChuck Lever msg.rpc_resp = fattr; 187f7b37b8bSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags); 188dead28daSChuck Lever } 189e1fb4d05STrond Myklebust nfs_free_fattr(res.dir_attr); 1901da177e4SLinus Torvalds dprintk("NFS reply lookup: %d\n", status); 1911da177e4SLinus Torvalds return status; 1921da177e4SLinus Torvalds } 1931da177e4SLinus Torvalds 1945f447cb8STrond Myklebust static int 1955f447cb8STrond Myklebust nfs3_proc_lookup(struct inode *dir, struct dentry *dentry, 1969558a007SAnna Schumaker struct nfs_fh *fhandle, struct nfs_fattr *fattr) 1975f447cb8STrond Myklebust { 1985f447cb8STrond Myklebust unsigned short task_flags = 0; 1995f447cb8STrond Myklebust 2005f447cb8STrond Myklebust /* Is this is an attribute revalidation, subject to softreval? */ 2015f447cb8STrond Myklebust if (nfs_lookup_is_soft_revalidate(dentry)) 2025f447cb8STrond Myklebust task_flags |= RPC_TASK_TIMEOUT; 2035f447cb8STrond Myklebust 2045f447cb8STrond Myklebust dprintk("NFS call lookup %pd2\n", dentry); 2055f447cb8STrond Myklebust return __nfs3_proc_lookup(dir, dentry->d_name.name, 2065f447cb8STrond Myklebust dentry->d_name.len, fhandle, fattr, 2075f447cb8STrond Myklebust task_flags); 2085f447cb8STrond Myklebust } 2095f447cb8STrond Myklebust 2103c5e9a59STrond Myklebust static int nfs3_proc_lookupp(struct inode *inode, struct nfs_fh *fhandle, 211ba4bc8dcSAnna Schumaker struct nfs_fattr *fattr) 2123c5e9a59STrond Myklebust { 2133c5e9a59STrond Myklebust const char dotdot[] = ".."; 2143c5e9a59STrond Myklebust const size_t len = strlen(dotdot); 2153c5e9a59STrond Myklebust unsigned short task_flags = 0; 2163c5e9a59STrond Myklebust 2173c5e9a59STrond Myklebust if (NFS_SERVER(inode)->flags & NFS_MOUNT_SOFTREVAL) 2183c5e9a59STrond Myklebust task_flags |= RPC_TASK_TIMEOUT; 2193c5e9a59STrond Myklebust 2203c5e9a59STrond Myklebust return __nfs3_proc_lookup(inode, dotdot, len, fhandle, fattr, 2213c5e9a59STrond Myklebust task_flags); 2223c5e9a59STrond Myklebust } 2233c5e9a59STrond Myklebust 22473fbb3faSNeilBrown static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry, 22573fbb3faSNeilBrown const struct cred *cred) 2261da177e4SLinus Torvalds { 2271da177e4SLinus Torvalds struct nfs3_accessargs arg = { 2281da177e4SLinus Torvalds .fh = NFS_FH(inode), 2291750d929SAnna Schumaker .access = entry->mask, 2301da177e4SLinus Torvalds }; 231c407d41aSTrond Myklebust struct nfs3_accessres res; 2321da177e4SLinus Torvalds struct rpc_message msg = { 2331da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], 2341da177e4SLinus Torvalds .rpc_argp = &arg, 2351da177e4SLinus Torvalds .rpc_resp = &res, 23673fbb3faSNeilBrown .rpc_cred = cred, 2371da177e4SLinus Torvalds }; 238c407d41aSTrond Myklebust int status = -ENOMEM; 2391da177e4SLinus Torvalds 2401da177e4SLinus Torvalds dprintk("NFS call access\n"); 241c407d41aSTrond Myklebust res.fattr = nfs_alloc_fattr(); 242c407d41aSTrond Myklebust if (res.fattr == NULL) 243c407d41aSTrond Myklebust goto out; 244c407d41aSTrond Myklebust 2451da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 246c407d41aSTrond Myklebust nfs_refresh_inode(inode, res.fattr); 247eda3e208STrond Myklebust if (status == 0) 248eda3e208STrond Myklebust nfs_access_set_mask(entry, res.access); 249c407d41aSTrond Myklebust nfs_free_fattr(res.fattr); 250c407d41aSTrond Myklebust out: 2511da177e4SLinus Torvalds dprintk("NFS reply access: %d\n", status); 2521da177e4SLinus Torvalds return status; 2531da177e4SLinus Torvalds } 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds static int nfs3_proc_readlink(struct inode *inode, struct page *page, 2561da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 2571da177e4SLinus Torvalds { 2583b14d654STrond Myklebust struct nfs_fattr *fattr; 2591da177e4SLinus Torvalds struct nfs3_readlinkargs args = { 2601da177e4SLinus Torvalds .fh = NFS_FH(inode), 2611da177e4SLinus Torvalds .pgbase = pgbase, 2621da177e4SLinus Torvalds .pglen = pglen, 2631da177e4SLinus Torvalds .pages = &page 2641da177e4SLinus Torvalds }; 265dead28daSChuck Lever struct rpc_message msg = { 266dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], 267dead28daSChuck Lever .rpc_argp = &args, 268dead28daSChuck Lever }; 2693b14d654STrond Myklebust int status = -ENOMEM; 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 2723b14d654STrond Myklebust fattr = nfs_alloc_fattr(); 2733b14d654STrond Myklebust if (fattr == NULL) 2743b14d654STrond Myklebust goto out; 2753b14d654STrond Myklebust msg.rpc_resp = fattr; 2763b14d654STrond Myklebust 277dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2783b14d654STrond Myklebust nfs_refresh_inode(inode, fattr); 2793b14d654STrond Myklebust nfs_free_fattr(fattr); 2803b14d654STrond Myklebust out: 2811da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 2821da177e4SLinus Torvalds return status; 2831da177e4SLinus Torvalds } 2841da177e4SLinus Torvalds 2850b4aae7aSTrond Myklebust struct nfs3_createdata { 2860b4aae7aSTrond Myklebust struct rpc_message msg; 2870b4aae7aSTrond Myklebust union { 2880b4aae7aSTrond Myklebust struct nfs3_createargs create; 2890b4aae7aSTrond Myklebust struct nfs3_mkdirargs mkdir; 2900b4aae7aSTrond Myklebust struct nfs3_symlinkargs symlink; 2910b4aae7aSTrond Myklebust struct nfs3_mknodargs mknod; 2920b4aae7aSTrond Myklebust } arg; 2930b4aae7aSTrond Myklebust struct nfs3_diropres res; 2940b4aae7aSTrond Myklebust struct nfs_fh fh; 2950b4aae7aSTrond Myklebust struct nfs_fattr fattr; 2960b4aae7aSTrond Myklebust struct nfs_fattr dir_attr; 2970b4aae7aSTrond Myklebust }; 2980b4aae7aSTrond Myklebust 2990b4aae7aSTrond Myklebust static struct nfs3_createdata *nfs3_alloc_createdata(void) 3000b4aae7aSTrond Myklebust { 3010b4aae7aSTrond Myklebust struct nfs3_createdata *data; 3020b4aae7aSTrond Myklebust 3030b4aae7aSTrond Myklebust data = kzalloc(sizeof(*data), GFP_KERNEL); 3040b4aae7aSTrond Myklebust if (data != NULL) { 3050b4aae7aSTrond Myklebust data->msg.rpc_argp = &data->arg; 3060b4aae7aSTrond Myklebust data->msg.rpc_resp = &data->res; 3070b4aae7aSTrond Myklebust data->res.fh = &data->fh; 3080b4aae7aSTrond Myklebust data->res.fattr = &data->fattr; 3090b4aae7aSTrond Myklebust data->res.dir_attr = &data->dir_attr; 3100b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 3110b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 3120b4aae7aSTrond Myklebust } 3130b4aae7aSTrond Myklebust return data; 3140b4aae7aSTrond Myklebust } 3150b4aae7aSTrond Myklebust 31617fd6e45SBenjamin Coddington static struct dentry * 31717fd6e45SBenjamin Coddington nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) 3180b4aae7aSTrond Myklebust { 3190b4aae7aSTrond Myklebust int status; 3200b4aae7aSTrond Myklebust 3210b4aae7aSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); 3220b4aae7aSTrond Myklebust nfs_post_op_update_inode(dir, data->res.dir_attr); 32317fd6e45SBenjamin Coddington if (status != 0) 32417fd6e45SBenjamin Coddington return ERR_PTR(status); 32517fd6e45SBenjamin Coddington 326cc6f3298SAnna Schumaker return nfs_add_or_obtain(dentry, data->res.fh, data->res.fattr); 3270b4aae7aSTrond Myklebust } 3280b4aae7aSTrond Myklebust 3290b4aae7aSTrond Myklebust static void nfs3_free_createdata(struct nfs3_createdata *data) 3300b4aae7aSTrond Myklebust { 3310b4aae7aSTrond Myklebust kfree(data); 3320b4aae7aSTrond Myklebust } 3330b4aae7aSTrond Myklebust 3341da177e4SLinus Torvalds /* 3351da177e4SLinus Torvalds * Create a regular file. 3361da177e4SLinus Torvalds */ 3371da177e4SLinus Torvalds static int 3381da177e4SLinus Torvalds nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 3398867fe58SMiklos Szeredi int flags) 3401da177e4SLinus Torvalds { 341013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 3420b4aae7aSTrond Myklebust struct nfs3_createdata *data; 34317fd6e45SBenjamin Coddington struct dentry *d_alias; 3440b4aae7aSTrond Myklebust int status = -ENOMEM; 3451da177e4SLinus Torvalds 3466de1472fSAl Viro dprintk("NFS call create %pd\n", dentry); 3470b4aae7aSTrond Myklebust 3480b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 3490b4aae7aSTrond Myklebust if (data == NULL) 3500b4aae7aSTrond Myklebust goto out; 3510b4aae7aSTrond Myklebust 3520b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; 3530b4aae7aSTrond Myklebust data->arg.create.fh = NFS_FH(dir); 3540b4aae7aSTrond Myklebust data->arg.create.name = dentry->d_name.name; 3550b4aae7aSTrond Myklebust data->arg.create.len = dentry->d_name.len; 3560b4aae7aSTrond Myklebust data->arg.create.sattr = sattr; 3570b4aae7aSTrond Myklebust 3580b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3591da177e4SLinus Torvalds if (flags & O_EXCL) { 3600b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; 361a9943d11STrond Myklebust data->arg.create.verifier[0] = cpu_to_be32(jiffies); 362a9943d11STrond Myklebust data->arg.create.verifier[1] = cpu_to_be32(current->pid); 3631da177e4SLinus Torvalds } 3641da177e4SLinus Torvalds 365013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 366013cdf10SChristoph Hellwig if (status) 367013cdf10SChristoph Hellwig goto out; 368055ffbeaSAndreas Gruenbacher 3690b4aae7aSTrond Myklebust for (;;) { 37017fd6e45SBenjamin Coddington d_alias = nfs3_do_create(dir, dentry, data); 37117fd6e45SBenjamin Coddington status = PTR_ERR_OR_ZERO(d_alias); 3721da177e4SLinus Torvalds 3730b4aae7aSTrond Myklebust if (status != -ENOTSUPP) 3740b4aae7aSTrond Myklebust break; 3750b4aae7aSTrond Myklebust /* If the server doesn't support the exclusive creation 3760b4aae7aSTrond Myklebust * semantics, try again with simple 'guarded' mode. */ 3770b4aae7aSTrond Myklebust switch (data->arg.create.createmode) { 3781da177e4SLinus Torvalds case NFS3_CREATE_EXCLUSIVE: 3790b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_GUARDED; 3801da177e4SLinus Torvalds break; 3811da177e4SLinus Torvalds 3821da177e4SLinus Torvalds case NFS3_CREATE_GUARDED: 3830b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3841da177e4SLinus Torvalds break; 3851da177e4SLinus Torvalds 3861da177e4SLinus Torvalds case NFS3_CREATE_UNCHECKED: 3871fcb6fcdSGao Xiang goto out_release_acls; 3881da177e4SLinus Torvalds } 3890b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 3900b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 3911da177e4SLinus Torvalds } 3921da177e4SLinus Torvalds 3931da177e4SLinus Torvalds if (status != 0) 394013cdf10SChristoph Hellwig goto out_release_acls; 3951da177e4SLinus Torvalds 39617fd6e45SBenjamin Coddington if (d_alias) 39717fd6e45SBenjamin Coddington dentry = d_alias; 39817fd6e45SBenjamin Coddington 3991da177e4SLinus Torvalds /* When we created the file with exclusive semantics, make 4001da177e4SLinus Torvalds * sure we set the attributes afterwards. */ 4010b4aae7aSTrond Myklebust if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { 4021da177e4SLinus Torvalds dprintk("NFS call setattr (post-create)\n"); 4031da177e4SLinus Torvalds 4041da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_ATIME_SET)) 4051da177e4SLinus Torvalds sattr->ia_valid |= ATTR_ATIME; 4061da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_MTIME_SET)) 4071da177e4SLinus Torvalds sattr->ia_valid |= ATTR_MTIME; 4081da177e4SLinus Torvalds 4091da177e4SLinus Torvalds /* Note: we could use a guarded setattr here, but I'm 4101da177e4SLinus Torvalds * not sure this buys us anything (and I'd have 4111da177e4SLinus Torvalds * to revamp the NFSv3 XDR code) */ 4120b4aae7aSTrond Myklebust status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); 4132b0143b5SDavid Howells nfs_post_op_update_inode(d_inode(dentry), data->res.fattr); 4141da177e4SLinus Torvalds dprintk("NFS reply setattr (post-create): %d\n", status); 415055ffbeaSAndreas Gruenbacher if (status != 0) 41617fd6e45SBenjamin Coddington goto out_dput; 4170b4aae7aSTrond Myklebust } 418013cdf10SChristoph Hellwig 4192b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 420013cdf10SChristoph Hellwig 42117fd6e45SBenjamin Coddington out_dput: 42217fd6e45SBenjamin Coddington dput(d_alias); 423013cdf10SChristoph Hellwig out_release_acls: 424013cdf10SChristoph Hellwig posix_acl_release(acl); 425013cdf10SChristoph Hellwig posix_acl_release(default_acl); 4261da177e4SLinus Torvalds out: 4270b4aae7aSTrond Myklebust nfs3_free_createdata(data); 4281da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 4291da177e4SLinus Torvalds return status; 4301da177e4SLinus Torvalds } 4311da177e4SLinus Torvalds 4321da177e4SLinus Torvalds static int 433912678dbSTrond Myklebust nfs3_proc_remove(struct inode *dir, struct dentry *dentry) 4341da177e4SLinus Torvalds { 4354fdc17b2STrond Myklebust struct nfs_removeargs arg = { 4361da177e4SLinus Torvalds .fh = NFS_FH(dir), 437912678dbSTrond Myklebust .name = dentry->d_name, 4381da177e4SLinus Torvalds }; 4394fdc17b2STrond Myklebust struct nfs_removeres res; 4401da177e4SLinus Torvalds struct rpc_message msg = { 4411da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], 4421da177e4SLinus Torvalds .rpc_argp = &arg, 4434fdc17b2STrond Myklebust .rpc_resp = &res, 4441da177e4SLinus Torvalds }; 445d346890bSTrond Myklebust int status = -ENOMEM; 4461da177e4SLinus Torvalds 447912678dbSTrond Myklebust dprintk("NFS call remove %pd2\n", dentry); 448d346890bSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 449d346890bSTrond Myklebust if (res.dir_attr == NULL) 450d346890bSTrond Myklebust goto out; 451d346890bSTrond Myklebust 4521da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 453d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 454d346890bSTrond Myklebust nfs_free_fattr(res.dir_attr); 455d346890bSTrond Myklebust out: 4561da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 4571da177e4SLinus Torvalds return status; 4581da177e4SLinus Torvalds } 4591da177e4SLinus Torvalds 460e4eff1a6STrond Myklebust static void 461ed7e9ad0STrond Myklebust nfs3_proc_unlink_setup(struct rpc_message *msg, 462ed7e9ad0STrond Myklebust struct dentry *dentry, 463ed7e9ad0STrond Myklebust struct inode *inode) 4641da177e4SLinus Torvalds { 4651da177e4SLinus Torvalds msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; 4661da177e4SLinus Torvalds } 4671da177e4SLinus Torvalds 46834e137ccSBryan Schumaker static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data) 46934e137ccSBryan Schumaker { 47034e137ccSBryan Schumaker rpc_call_start(task); 47134e137ccSBryan Schumaker } 47234e137ccSBryan Schumaker 4731da177e4SLinus Torvalds static int 474e4eff1a6STrond Myklebust nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) 4751da177e4SLinus Torvalds { 476e4eff1a6STrond Myklebust struct nfs_removeres *res; 477e4eff1a6STrond Myklebust if (nfs3_async_handle_jukebox(task, dir)) 4781da177e4SLinus Torvalds return 0; 479e4eff1a6STrond Myklebust res = task->tk_msg.rpc_resp; 480d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res->dir_attr); 481e4eff1a6STrond Myklebust return 1; 4821da177e4SLinus Torvalds } 4831da177e4SLinus Torvalds 484d3d4152aSJeff Layton static void 485f2c2c552STrond Myklebust nfs3_proc_rename_setup(struct rpc_message *msg, 486f2c2c552STrond Myklebust struct dentry *old_dentry, 487f2c2c552STrond Myklebust struct dentry *new_dentry) 488d3d4152aSJeff Layton { 489d3d4152aSJeff Layton msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME]; 490d3d4152aSJeff Layton } 491d3d4152aSJeff Layton 492c6bfa1a1SBryan Schumaker static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data) 493c6bfa1a1SBryan Schumaker { 494c6bfa1a1SBryan Schumaker rpc_call_start(task); 495c6bfa1a1SBryan Schumaker } 496c6bfa1a1SBryan Schumaker 497d3d4152aSJeff Layton static int 498d3d4152aSJeff Layton nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir, 499d3d4152aSJeff Layton struct inode *new_dir) 500d3d4152aSJeff Layton { 501d3d4152aSJeff Layton struct nfs_renameres *res; 502d3d4152aSJeff Layton 503d3d4152aSJeff Layton if (nfs3_async_handle_jukebox(task, old_dir)) 504d3d4152aSJeff Layton return 0; 505d3d4152aSJeff Layton res = task->tk_msg.rpc_resp; 506d3d4152aSJeff Layton 507d3d4152aSJeff Layton nfs_post_op_update_inode(old_dir, res->old_fattr); 508d3d4152aSJeff Layton nfs_post_op_update_inode(new_dir, res->new_fattr); 509d3d4152aSJeff Layton return 1; 510d3d4152aSJeff Layton } 511d3d4152aSJeff Layton 5121da177e4SLinus Torvalds static int 513beffb8feSAl Viro nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name) 5141da177e4SLinus Torvalds { 5151da177e4SLinus Torvalds struct nfs3_linkargs arg = { 5161da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 5171da177e4SLinus Torvalds .tofh = NFS_FH(dir), 5181da177e4SLinus Torvalds .toname = name->name, 5191da177e4SLinus Torvalds .tolen = name->len 5201da177e4SLinus Torvalds }; 521136f2627STrond Myklebust struct nfs3_linkres res; 522dead28daSChuck Lever struct rpc_message msg = { 523dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], 524dead28daSChuck Lever .rpc_argp = &arg, 525dead28daSChuck Lever .rpc_resp = &res, 526dead28daSChuck Lever }; 527136f2627STrond Myklebust int status = -ENOMEM; 5281da177e4SLinus Torvalds 5291da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 530136f2627STrond Myklebust res.fattr = nfs_alloc_fattr(); 531136f2627STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 532136f2627STrond Myklebust if (res.fattr == NULL || res.dir_attr == NULL) 533136f2627STrond Myklebust goto out; 534136f2627STrond Myklebust 535dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 536136f2627STrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 537136f2627STrond Myklebust nfs_post_op_update_inode(inode, res.fattr); 538136f2627STrond Myklebust out: 539136f2627STrond Myklebust nfs_free_fattr(res.dir_attr); 540136f2627STrond Myklebust nfs_free_fattr(res.fattr); 5411da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 5421da177e4SLinus Torvalds return status; 5431da177e4SLinus Torvalds } 5441da177e4SLinus Torvalds 5451da177e4SLinus Torvalds static int 54694a6d753SChuck Lever nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, 54794a6d753SChuck Lever unsigned int len, struct iattr *sattr) 5481da177e4SLinus Torvalds { 5490b4aae7aSTrond Myklebust struct nfs3_createdata *data; 55017fd6e45SBenjamin Coddington struct dentry *d_alias; 5510b4aae7aSTrond Myklebust int status = -ENOMEM; 5521da177e4SLinus Torvalds 55394a6d753SChuck Lever if (len > NFS3_MAXPATHLEN) 5541da177e4SLinus Torvalds return -ENAMETOOLONG; 5554f390c15SChuck Lever 5566de1472fSAl Viro dprintk("NFS call symlink %pd\n", dentry); 55794a6d753SChuck Lever 5580b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5590b4aae7aSTrond Myklebust if (data == NULL) 5604f390c15SChuck Lever goto out; 5610b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; 5620b4aae7aSTrond Myklebust data->arg.symlink.fromfh = NFS_FH(dir); 5630b4aae7aSTrond Myklebust data->arg.symlink.fromname = dentry->d_name.name; 5640b4aae7aSTrond Myklebust data->arg.symlink.fromlen = dentry->d_name.len; 5650b4aae7aSTrond Myklebust data->arg.symlink.pages = &page; 5660b4aae7aSTrond Myklebust data->arg.symlink.pathlen = len; 5670b4aae7aSTrond Myklebust data->arg.symlink.sattr = sattr; 5680b4aae7aSTrond Myklebust 56917fd6e45SBenjamin Coddington d_alias = nfs3_do_create(dir, dentry, data); 57017fd6e45SBenjamin Coddington status = PTR_ERR_OR_ZERO(d_alias); 57117fd6e45SBenjamin Coddington 57217fd6e45SBenjamin Coddington if (status == 0) 57317fd6e45SBenjamin Coddington dput(d_alias); 5740b4aae7aSTrond Myklebust 5750b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5764f390c15SChuck Lever out: 5771da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 5781da177e4SLinus Torvalds return status; 5791da177e4SLinus Torvalds } 5801da177e4SLinus Torvalds 5811da177e4SLinus Torvalds static int 5821da177e4SLinus Torvalds nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 5831da177e4SLinus Torvalds { 584013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 5850b4aae7aSTrond Myklebust struct nfs3_createdata *data; 58617fd6e45SBenjamin Coddington struct dentry *d_alias; 5870b4aae7aSTrond Myklebust int status = -ENOMEM; 5881da177e4SLinus Torvalds 5896de1472fSAl Viro dprintk("NFS call mkdir %pd\n", dentry); 590055ffbeaSAndreas Gruenbacher 5910b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5920b4aae7aSTrond Myklebust if (data == NULL) 5930b4aae7aSTrond Myklebust goto out; 5940b4aae7aSTrond Myklebust 595013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 596013cdf10SChristoph Hellwig if (status) 597013cdf10SChristoph Hellwig goto out; 598013cdf10SChristoph Hellwig 5990b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; 6000b4aae7aSTrond Myklebust data->arg.mkdir.fh = NFS_FH(dir); 6010b4aae7aSTrond Myklebust data->arg.mkdir.name = dentry->d_name.name; 6020b4aae7aSTrond Myklebust data->arg.mkdir.len = dentry->d_name.len; 6030b4aae7aSTrond Myklebust data->arg.mkdir.sattr = sattr; 6040b4aae7aSTrond Myklebust 60517fd6e45SBenjamin Coddington d_alias = nfs3_do_create(dir, dentry, data); 60617fd6e45SBenjamin Coddington status = PTR_ERR_OR_ZERO(d_alias); 60717fd6e45SBenjamin Coddington 608055ffbeaSAndreas Gruenbacher if (status != 0) 609013cdf10SChristoph Hellwig goto out_release_acls; 6100b4aae7aSTrond Myklebust 61117fd6e45SBenjamin Coddington if (d_alias) 61217fd6e45SBenjamin Coddington dentry = d_alias; 61317fd6e45SBenjamin Coddington 6142b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 615013cdf10SChristoph Hellwig 61617fd6e45SBenjamin Coddington dput(d_alias); 617013cdf10SChristoph Hellwig out_release_acls: 618013cdf10SChristoph Hellwig posix_acl_release(acl); 619013cdf10SChristoph Hellwig posix_acl_release(default_acl); 620055ffbeaSAndreas Gruenbacher out: 6210b4aae7aSTrond Myklebust nfs3_free_createdata(data); 6221da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 6231da177e4SLinus Torvalds return status; 6241da177e4SLinus Torvalds } 6251da177e4SLinus Torvalds 6261da177e4SLinus Torvalds static int 627beffb8feSAl Viro nfs3_proc_rmdir(struct inode *dir, const struct qstr *name) 6281da177e4SLinus Torvalds { 62939967ddfSTrond Myklebust struct nfs_fattr *dir_attr; 6301da177e4SLinus Torvalds struct nfs3_diropargs arg = { 6311da177e4SLinus Torvalds .fh = NFS_FH(dir), 6321da177e4SLinus Torvalds .name = name->name, 6331da177e4SLinus Torvalds .len = name->len 6341da177e4SLinus Torvalds }; 635dead28daSChuck Lever struct rpc_message msg = { 636dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], 637dead28daSChuck Lever .rpc_argp = &arg, 638dead28daSChuck Lever }; 63939967ddfSTrond Myklebust int status = -ENOMEM; 6401da177e4SLinus Torvalds 6411da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 64239967ddfSTrond Myklebust dir_attr = nfs_alloc_fattr(); 64339967ddfSTrond Myklebust if (dir_attr == NULL) 64439967ddfSTrond Myklebust goto out; 64539967ddfSTrond Myklebust 64639967ddfSTrond Myklebust msg.rpc_resp = dir_attr; 647dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 64839967ddfSTrond Myklebust nfs_post_op_update_inode(dir, dir_attr); 64939967ddfSTrond Myklebust nfs_free_fattr(dir_attr); 65039967ddfSTrond Myklebust out: 6511da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 6521da177e4SLinus Torvalds return status; 6531da177e4SLinus Torvalds } 6541da177e4SLinus Torvalds 6551da177e4SLinus Torvalds /* 6561da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass the user buffer 6571da177e4SLinus Torvalds * to the encode function, which installs it in the receive iovec. 6581da177e4SLinus Torvalds * The decode function itself doesn't perform any decoding, it just makes 6591da177e4SLinus Torvalds * sure the reply is syntactically correct. 6601da177e4SLinus Torvalds * 6611da177e4SLinus Torvalds * Also note that this implementation handles both plain readdir and 6621da177e4SLinus Torvalds * readdirplus. 6631da177e4SLinus Torvalds */ 66482e22a5eSTrond Myklebust static int nfs3_proc_readdir(struct nfs_readdir_arg *nr_arg, 66582e22a5eSTrond Myklebust struct nfs_readdir_res *nr_res) 6661da177e4SLinus Torvalds { 66782e22a5eSTrond Myklebust struct inode *dir = d_inode(nr_arg->dentry); 6681da177e4SLinus Torvalds struct nfs3_readdirargs arg = { 6691da177e4SLinus Torvalds .fh = NFS_FH(dir), 67082e22a5eSTrond Myklebust .cookie = nr_arg->cookie, 67182e22a5eSTrond Myklebust .plus = nr_arg->plus, 67282e22a5eSTrond Myklebust .count = nr_arg->page_len, 67382e22a5eSTrond Myklebust .pages = nr_arg->pages 6741da177e4SLinus Torvalds }; 6751da177e4SLinus Torvalds struct nfs3_readdirres res = { 67682e22a5eSTrond Myklebust .verf = nr_res->verf, 67782e22a5eSTrond Myklebust .plus = nr_arg->plus, 6781da177e4SLinus Torvalds }; 6791da177e4SLinus Torvalds struct rpc_message msg = { 6801da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], 6811da177e4SLinus Torvalds .rpc_argp = &arg, 6821da177e4SLinus Torvalds .rpc_resp = &res, 68382e22a5eSTrond Myklebust .rpc_cred = nr_arg->cred, 6841da177e4SLinus Torvalds }; 685aa49b4cfSTrond Myklebust int status = -ENOMEM; 6861da177e4SLinus Torvalds 68782e22a5eSTrond Myklebust if (nr_arg->plus) 6881da177e4SLinus Torvalds msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; 68982e22a5eSTrond Myklebust if (arg.cookie) 69082e22a5eSTrond Myklebust memcpy(arg.verf, nr_arg->verf, sizeof(arg.verf)); 6911da177e4SLinus Torvalds 69282e22a5eSTrond Myklebust dprintk("NFS call readdir%s %llu\n", nr_arg->plus ? "plus" : "", 69382e22a5eSTrond Myklebust (unsigned long long)nr_arg->cookie); 6941da177e4SLinus Torvalds 695aa49b4cfSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 696aa49b4cfSTrond Myklebust if (res.dir_attr == NULL) 697aa49b4cfSTrond Myklebust goto out; 698aa49b4cfSTrond Myklebust 6991da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 700c4812998STrond Myklebust 701c4812998STrond Myklebust nfs_invalidate_atime(dir); 702aa49b4cfSTrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 703c4812998STrond Myklebust 704aa49b4cfSTrond Myklebust nfs_free_fattr(res.dir_attr); 705aa49b4cfSTrond Myklebust out: 70682e22a5eSTrond Myklebust dprintk("NFS reply readdir%s: %d\n", nr_arg->plus ? "plus" : "", 70782e22a5eSTrond Myklebust status); 7081da177e4SLinus Torvalds return status; 7091da177e4SLinus Torvalds } 7101da177e4SLinus Torvalds 7111da177e4SLinus Torvalds static int 7121da177e4SLinus Torvalds nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 7131da177e4SLinus Torvalds dev_t rdev) 7141da177e4SLinus Torvalds { 715013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 7160b4aae7aSTrond Myklebust struct nfs3_createdata *data; 71717fd6e45SBenjamin Coddington struct dentry *d_alias; 7180b4aae7aSTrond Myklebust int status = -ENOMEM; 7191da177e4SLinus Torvalds 7206de1472fSAl Viro dprintk("NFS call mknod %pd %u:%u\n", dentry, 7211da177e4SLinus Torvalds MAJOR(rdev), MINOR(rdev)); 722055ffbeaSAndreas Gruenbacher 7230b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 7240b4aae7aSTrond Myklebust if (data == NULL) 725055ffbeaSAndreas Gruenbacher goto out; 7260b4aae7aSTrond Myklebust 727013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 728013cdf10SChristoph Hellwig if (status) 729013cdf10SChristoph Hellwig goto out; 730013cdf10SChristoph Hellwig 7310b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; 7320b4aae7aSTrond Myklebust data->arg.mknod.fh = NFS_FH(dir); 7330b4aae7aSTrond Myklebust data->arg.mknod.name = dentry->d_name.name; 7340b4aae7aSTrond Myklebust data->arg.mknod.len = dentry->d_name.len; 7350b4aae7aSTrond Myklebust data->arg.mknod.sattr = sattr; 7360b4aae7aSTrond Myklebust data->arg.mknod.rdev = rdev; 7370b4aae7aSTrond Myklebust 7380b4aae7aSTrond Myklebust switch (sattr->ia_mode & S_IFMT) { 7390b4aae7aSTrond Myklebust case S_IFBLK: 7400b4aae7aSTrond Myklebust data->arg.mknod.type = NF3BLK; 7410b4aae7aSTrond Myklebust break; 7420b4aae7aSTrond Myklebust case S_IFCHR: 7430b4aae7aSTrond Myklebust data->arg.mknod.type = NF3CHR; 7440b4aae7aSTrond Myklebust break; 7450b4aae7aSTrond Myklebust case S_IFIFO: 7460b4aae7aSTrond Myklebust data->arg.mknod.type = NF3FIFO; 7470b4aae7aSTrond Myklebust break; 7480b4aae7aSTrond Myklebust case S_IFSOCK: 7490b4aae7aSTrond Myklebust data->arg.mknod.type = NF3SOCK; 7500b4aae7aSTrond Myklebust break; 7510b4aae7aSTrond Myklebust default: 7520b4aae7aSTrond Myklebust status = -EINVAL; 7531fcb6fcdSGao Xiang goto out_release_acls; 7540b4aae7aSTrond Myklebust } 7550b4aae7aSTrond Myklebust 75617fd6e45SBenjamin Coddington d_alias = nfs3_do_create(dir, dentry, data); 75717fd6e45SBenjamin Coddington status = PTR_ERR_OR_ZERO(d_alias); 758055ffbeaSAndreas Gruenbacher if (status != 0) 759013cdf10SChristoph Hellwig goto out_release_acls; 760013cdf10SChristoph Hellwig 76117fd6e45SBenjamin Coddington if (d_alias) 76217fd6e45SBenjamin Coddington dentry = d_alias; 76317fd6e45SBenjamin Coddington 7642b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 765013cdf10SChristoph Hellwig 76617fd6e45SBenjamin Coddington dput(d_alias); 767013cdf10SChristoph Hellwig out_release_acls: 768013cdf10SChristoph Hellwig posix_acl_release(acl); 769013cdf10SChristoph Hellwig posix_acl_release(default_acl); 770055ffbeaSAndreas Gruenbacher out: 7710b4aae7aSTrond Myklebust nfs3_free_createdata(data); 7721da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 7731da177e4SLinus Torvalds return status; 7741da177e4SLinus Torvalds } 7751da177e4SLinus Torvalds 7761da177e4SLinus Torvalds static int 7771da177e4SLinus Torvalds nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 7781da177e4SLinus Torvalds struct nfs_fsstat *stat) 7791da177e4SLinus Torvalds { 780dead28daSChuck Lever struct rpc_message msg = { 781dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], 782dead28daSChuck Lever .rpc_argp = fhandle, 783dead28daSChuck Lever .rpc_resp = stat, 784dead28daSChuck Lever }; 7851da177e4SLinus Torvalds int status; 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds dprintk("NFS call fsstat\n"); 7880e574af1STrond Myklebust nfs_fattr_init(stat->fattr); 789dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 790d141d974SChuck Lever dprintk("NFS reply fsstat: %d\n", status); 7911da177e4SLinus Torvalds return status; 7921da177e4SLinus Torvalds } 7931da177e4SLinus Torvalds 7941da177e4SLinus Torvalds static int 79537ca8f5cSEG Keizer do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle, 7961da177e4SLinus Torvalds struct nfs_fsinfo *info) 7971da177e4SLinus Torvalds { 798dead28daSChuck Lever struct rpc_message msg = { 799dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 800dead28daSChuck Lever .rpc_argp = fhandle, 801dead28daSChuck Lever .rpc_resp = info, 802dead28daSChuck Lever }; 8031da177e4SLinus Torvalds int status; 8041da177e4SLinus Torvalds 8051da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 8060e574af1STrond Myklebust nfs_fattr_init(info->fattr); 80737ca8f5cSEG Keizer status = rpc_call_sync(client, &msg, 0); 8081da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 8091da177e4SLinus Torvalds return status; 8101da177e4SLinus Torvalds } 8111da177e4SLinus Torvalds 81237ca8f5cSEG Keizer /* 81337ca8f5cSEG Keizer * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via 81437ca8f5cSEG Keizer * nfs_create_server 81537ca8f5cSEG Keizer */ 81637ca8f5cSEG Keizer static int 81737ca8f5cSEG Keizer nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 81837ca8f5cSEG Keizer struct nfs_fsinfo *info) 81937ca8f5cSEG Keizer { 82037ca8f5cSEG Keizer int status; 82137ca8f5cSEG Keizer 82237ca8f5cSEG Keizer status = do_proc_fsinfo(server->client, fhandle, info); 82337ca8f5cSEG Keizer if (status && server->nfs_client->cl_rpcclient != server->client) 82437ca8f5cSEG Keizer status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); 82537ca8f5cSEG Keizer return status; 82637ca8f5cSEG Keizer } 82737ca8f5cSEG Keizer 8281da177e4SLinus Torvalds static int 8291da177e4SLinus Torvalds nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 8301da177e4SLinus Torvalds struct nfs_pathconf *info) 8311da177e4SLinus Torvalds { 832dead28daSChuck Lever struct rpc_message msg = { 833dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], 834dead28daSChuck Lever .rpc_argp = fhandle, 835dead28daSChuck Lever .rpc_resp = info, 836dead28daSChuck Lever }; 8371da177e4SLinus Torvalds int status; 8381da177e4SLinus Torvalds 8391da177e4SLinus Torvalds dprintk("NFS call pathconf\n"); 8400e574af1STrond Myklebust nfs_fattr_init(info->fattr); 841dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 8421da177e4SLinus Torvalds dprintk("NFS reply pathconf: %d\n", status); 8431da177e4SLinus Torvalds return status; 8441da177e4SLinus Torvalds } 8451da177e4SLinus Torvalds 846d45f60c6SWeston Andros Adamson static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 8471da177e4SLinus Torvalds { 848d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 8498d8928d8STrond Myklebust struct nfs_server *server = NFS_SERVER(inode); 850cd841605SFred Isaman 85116cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 85216cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 85316cecdf6STrond Myklebust 854cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 855ec06c096STrond Myklebust return -EAGAIN; 8568850df99STrond Myklebust 8578d8928d8STrond Myklebust if (task->tk_status >= 0 && !server->read_hdrsize) 8588d8928d8STrond Myklebust cmpxchg(&server->read_hdrsize, 0, hdr->res.replen); 8598d8928d8STrond Myklebust 860cd841605SFred Isaman nfs_invalidate_atime(inode); 861d45f60c6SWeston Andros Adamson nfs_refresh_inode(inode, &hdr->fattr); 862ec06c096STrond Myklebust return 0; 8631da177e4SLinus Torvalds } 8641da177e4SLinus Torvalds 865d45f60c6SWeston Andros Adamson static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr, 866d45f60c6SWeston Andros Adamson struct rpc_message *msg) 8671da177e4SLinus Torvalds { 868bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; 8698d8928d8STrond Myklebust hdr->args.replen = NFS_SERVER(hdr->inode)->read_hdrsize; 8701da177e4SLinus Torvalds } 8711da177e4SLinus Torvalds 872d45f60c6SWeston Andros Adamson static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task, 873d45f60c6SWeston Andros Adamson struct nfs_pgio_header *hdr) 874ea7c3303SBryan Schumaker { 875ea7c3303SBryan Schumaker rpc_call_start(task); 876ef1820f9SNeilBrown return 0; 877ea7c3303SBryan Schumaker } 878ea7c3303SBryan Schumaker 879d45f60c6SWeston Andros Adamson static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 8801da177e4SLinus Torvalds { 881d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 882cd841605SFred Isaman 88316cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 88416cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 88516cecdf6STrond Myklebust 886cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 887788e7a89STrond Myklebust return -EAGAIN; 8881da177e4SLinus Torvalds if (task->tk_status >= 0) 889a08a8cd3STrond Myklebust nfs_writeback_update_inode(hdr); 890788e7a89STrond Myklebust return 0; 8911da177e4SLinus Torvalds } 8921da177e4SLinus Torvalds 893d45f60c6SWeston Andros Adamson static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr, 894fb91fb0eSAnna Schumaker struct rpc_message *msg, 895fb91fb0eSAnna Schumaker struct rpc_clnt **clnt) 8961da177e4SLinus Torvalds { 897bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; 8981da177e4SLinus Torvalds } 8991da177e4SLinus Torvalds 9000b7c0153SFred Isaman static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data) 9010b7c0153SFred Isaman { 9020b7c0153SFred Isaman rpc_call_start(task); 9030b7c0153SFred Isaman } 9040b7c0153SFred Isaman 9050b7c0153SFred Isaman static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data) 9061da177e4SLinus Torvalds { 90716cecdf6STrond Myklebust if (data->commit_done_cb != NULL) 90816cecdf6STrond Myklebust return data->commit_done_cb(task, data); 90916cecdf6STrond Myklebust 910006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 911788e7a89STrond Myklebust return -EAGAIN; 9129e08a3c5STrond Myklebust nfs_refresh_inode(data->inode, data->res.fattr); 913788e7a89STrond Myklebust return 0; 9141da177e4SLinus Torvalds } 9151da177e4SLinus Torvalds 916e9ae1ee2SAnna Schumaker static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg, 917e9ae1ee2SAnna Schumaker struct rpc_clnt **clnt) 9181da177e4SLinus Torvalds { 919bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; 9201da177e4SLinus Torvalds } 9211da177e4SLinus Torvalds 922bb3393d5STrond Myklebust static void nfs3_nlm_alloc_call(void *data) 923f30cb757SBenjamin Coddington { 924f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 925f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) { 926f30cb757SBenjamin Coddington get_nfs_open_context(l_ctx->open_context); 927f30cb757SBenjamin Coddington nfs_get_lock_context(l_ctx->open_context); 928f30cb757SBenjamin Coddington } 929f30cb757SBenjamin Coddington } 930f30cb757SBenjamin Coddington 931bb3393d5STrond Myklebust static bool nfs3_nlm_unlock_prepare(struct rpc_task *task, void *data) 932f30cb757SBenjamin Coddington { 933f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 934f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) 935f30cb757SBenjamin Coddington return nfs_async_iocounter_wait(task, l_ctx); 936f30cb757SBenjamin Coddington return false; 937f30cb757SBenjamin Coddington 938f30cb757SBenjamin Coddington } 939f30cb757SBenjamin Coddington 940bb3393d5STrond Myklebust static void nfs3_nlm_release_call(void *data) 941f30cb757SBenjamin Coddington { 942f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 943f30cb757SBenjamin Coddington struct nfs_open_context *ctx; 944f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) { 945f30cb757SBenjamin Coddington ctx = l_ctx->open_context; 946f30cb757SBenjamin Coddington nfs_put_lock_context(l_ctx); 947f30cb757SBenjamin Coddington put_nfs_open_context(ctx); 948f30cb757SBenjamin Coddington } 949f30cb757SBenjamin Coddington } 950f30cb757SBenjamin Coddington 9511b720406SColin Ian King static const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = { 952f30cb757SBenjamin Coddington .nlmclnt_alloc_call = nfs3_nlm_alloc_call, 953f30cb757SBenjamin Coddington .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare, 954f30cb757SBenjamin Coddington .nlmclnt_release_call = nfs3_nlm_release_call, 955f30cb757SBenjamin Coddington }; 956f30cb757SBenjamin Coddington 9571da177e4SLinus Torvalds static int 9581da177e4SLinus Torvalds nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) 9591da177e4SLinus Torvalds { 960496ad9aaSAl Viro struct inode *inode = file_inode(filp); 961f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = NULL; 962f30cb757SBenjamin Coddington struct nfs_open_context *ctx = nfs_file_open_context(filp); 963f30cb757SBenjamin Coddington int status; 9641093a60eSChuck Lever 965f30cb757SBenjamin Coddington if (fl->fl_flags & FL_CLOSE) { 966f30cb757SBenjamin Coddington l_ctx = nfs_get_lock_context(ctx); 967f30cb757SBenjamin Coddington if (IS_ERR(l_ctx)) 968f30cb757SBenjamin Coddington l_ctx = NULL; 969f30cb757SBenjamin Coddington else 970f30cb757SBenjamin Coddington set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags); 971f30cb757SBenjamin Coddington } 972f30cb757SBenjamin Coddington 973f30cb757SBenjamin Coddington status = nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, l_ctx); 974f30cb757SBenjamin Coddington 975f30cb757SBenjamin Coddington if (l_ctx) 976f30cb757SBenjamin Coddington nfs_put_lock_context(l_ctx); 977f30cb757SBenjamin Coddington 978f30cb757SBenjamin Coddington return status; 9791da177e4SLinus Torvalds } 9801da177e4SLinus Torvalds 981011e2a7fSBryan Schumaker static int nfs3_have_delegation(struct inode *inode, fmode_t flags) 982011e2a7fSBryan Schumaker { 983011e2a7fSBryan Schumaker return 0; 984011e2a7fSBryan Schumaker } 985011e2a7fSBryan Schumaker 986ab96291eSBryan Schumaker static const struct inode_operations nfs3_dir_inode_operations = { 987ab96291eSBryan Schumaker .create = nfs_create, 988ab96291eSBryan Schumaker .lookup = nfs_lookup, 989ab96291eSBryan Schumaker .link = nfs_link, 990ab96291eSBryan Schumaker .unlink = nfs_unlink, 991ab96291eSBryan Schumaker .symlink = nfs_symlink, 992ab96291eSBryan Schumaker .mkdir = nfs_mkdir, 993ab96291eSBryan Schumaker .rmdir = nfs_rmdir, 994ab96291eSBryan Schumaker .mknod = nfs_mknod, 995ab96291eSBryan Schumaker .rename = nfs_rename, 996ab96291eSBryan Schumaker .permission = nfs_permission, 997ab96291eSBryan Schumaker .getattr = nfs_getattr, 998ab96291eSBryan Schumaker .setattr = nfs_setattr, 9995f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 100074adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 1001013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 1002013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 1003013cdf10SChristoph Hellwig #endif 1004ab96291eSBryan Schumaker }; 1005ab96291eSBryan Schumaker 1006ab96291eSBryan Schumaker static const struct inode_operations nfs3_file_inode_operations = { 1007ab96291eSBryan Schumaker .permission = nfs_permission, 1008ab96291eSBryan Schumaker .getattr = nfs_getattr, 1009ab96291eSBryan Schumaker .setattr = nfs_setattr, 10105f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 101174adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 1012013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 1013013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 1014013cdf10SChristoph Hellwig #endif 1015ab96291eSBryan Schumaker }; 1016ab96291eSBryan Schumaker 1017509de811SDavid Howells const struct nfs_rpc_ops nfs_v3_clientops = { 10181da177e4SLinus Torvalds .version = 3, /* protocol version */ 10191da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 1020b7fa0554SAndreas Gruenbacher .dir_inode_ops = &nfs3_dir_inode_operations, 1021b7fa0554SAndreas Gruenbacher .file_inode_ops = &nfs3_file_inode_operations, 10221788ea6eSJeff Layton .file_ops = &nfs_file_operations, 1023f30cb757SBenjamin Coddington .nlmclnt_ops = &nlmclnt_fl_close_lock_ops, 10241da177e4SLinus Torvalds .getroot = nfs3_proc_get_root, 1025281cad46SBryan Schumaker .submount = nfs_submount, 1026f2aedb71SDavid Howells .try_get_tree = nfs_try_get_tree, 10271da177e4SLinus Torvalds .getattr = nfs3_proc_getattr, 10281da177e4SLinus Torvalds .setattr = nfs3_proc_setattr, 10291da177e4SLinus Torvalds .lookup = nfs3_proc_lookup, 10303c5e9a59STrond Myklebust .lookupp = nfs3_proc_lookupp, 10311da177e4SLinus Torvalds .access = nfs3_proc_access, 10321da177e4SLinus Torvalds .readlink = nfs3_proc_readlink, 10331da177e4SLinus Torvalds .create = nfs3_proc_create, 10341da177e4SLinus Torvalds .remove = nfs3_proc_remove, 10351da177e4SLinus Torvalds .unlink_setup = nfs3_proc_unlink_setup, 103634e137ccSBryan Schumaker .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare, 10371da177e4SLinus Torvalds .unlink_done = nfs3_proc_unlink_done, 1038d3d4152aSJeff Layton .rename_setup = nfs3_proc_rename_setup, 1039c6bfa1a1SBryan Schumaker .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare, 1040d3d4152aSJeff Layton .rename_done = nfs3_proc_rename_done, 10411da177e4SLinus Torvalds .link = nfs3_proc_link, 10421da177e4SLinus Torvalds .symlink = nfs3_proc_symlink, 10431da177e4SLinus Torvalds .mkdir = nfs3_proc_mkdir, 10441da177e4SLinus Torvalds .rmdir = nfs3_proc_rmdir, 10451da177e4SLinus Torvalds .readdir = nfs3_proc_readdir, 10461da177e4SLinus Torvalds .mknod = nfs3_proc_mknod, 10471da177e4SLinus Torvalds .statfs = nfs3_proc_statfs, 10481da177e4SLinus Torvalds .fsinfo = nfs3_proc_fsinfo, 10491da177e4SLinus Torvalds .pathconf = nfs3_proc_pathconf, 10501da177e4SLinus Torvalds .decode_dirent = nfs3_decode_dirent, 1051a4cdda59SAnna Schumaker .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare, 10521da177e4SLinus Torvalds .read_setup = nfs3_proc_read_setup, 1053ec06c096STrond Myklebust .read_done = nfs3_read_done, 10541da177e4SLinus Torvalds .write_setup = nfs3_proc_write_setup, 1055788e7a89STrond Myklebust .write_done = nfs3_write_done, 10561da177e4SLinus Torvalds .commit_setup = nfs3_proc_commit_setup, 10570b7c0153SFred Isaman .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare, 1058788e7a89STrond Myklebust .commit_done = nfs3_commit_done, 10591da177e4SLinus Torvalds .lock = nfs3_proc_lock, 1060013cdf10SChristoph Hellwig .clear_acl_cache = forget_all_cached_acls, 10617fe5c398STrond Myklebust .close_context = nfs_close_context, 1062011e2a7fSBryan Schumaker .have_delegation = nfs3_have_delegation, 10636663ee7fSBryan Schumaker .alloc_client = nfs_alloc_client, 106445a52a02SAndy Adamson .init_client = nfs_init_client, 1065cdb7ecedSBryan Schumaker .free_client = nfs_free_client, 10661179acc6SBryan Schumaker .create_server = nfs3_create_server, 10671179acc6SBryan Schumaker .clone_server = nfs3_clone_server, 10681da177e4SLinus Torvalds }; 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