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; 39416ad3c9SColin Cross freezable_schedule_timeout_killable_unsafe(NFS_JUKEBOX_RETRY_TIME); 401da177e4SLinus Torvalds res = -ERESTARTSYS; 41150030b7SMatthew Wilcox } while (!fatal_signal_pending(current)); 421da177e4SLinus Torvalds return res; 431da177e4SLinus Torvalds } 441da177e4SLinus Torvalds 45dead28daSChuck Lever #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags) 461da177e4SLinus Torvalds 471da177e4SLinus Torvalds static int 48006ea73eSChuck Lever nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) 491da177e4SLinus Torvalds { 50eb96d5c9SAndy Adamson if (task->tk_status != -EJUKEBOX) 511da177e4SLinus Torvalds return 0; 52006ea73eSChuck Lever nfs_inc_stats(inode, NFSIOS_DELAY); 531da177e4SLinus Torvalds task->tk_status = 0; 541da177e4SLinus Torvalds rpc_restart_call(task); 551da177e4SLinus Torvalds rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); 561da177e4SLinus Torvalds return 1; 571da177e4SLinus Torvalds } 581da177e4SLinus Torvalds 5903c21733SJ. Bruce Fields static int 6003c21733SJ. Bruce Fields do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, 6103c21733SJ. Bruce Fields struct nfs_fsinfo *info) 6203c21733SJ. Bruce Fields { 63dead28daSChuck Lever struct rpc_message msg = { 64dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 65dead28daSChuck Lever .rpc_argp = fhandle, 66dead28daSChuck Lever .rpc_resp = info, 67dead28daSChuck Lever }; 6803c21733SJ. Bruce Fields int status; 6903c21733SJ. Bruce Fields 703110ff80SHarvey Harrison dprintk("%s: call fsinfo\n", __func__); 7103c21733SJ. Bruce Fields nfs_fattr_init(info->fattr); 72dead28daSChuck Lever status = rpc_call_sync(client, &msg, 0); 733110ff80SHarvey Harrison dprintk("%s: reply fsinfo: %d\n", __func__, status); 7408660043STrond Myklebust if (status == 0 && !(info->fattr->valid & NFS_ATTR_FATTR)) { 75dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 76dead28daSChuck Lever msg.rpc_resp = info->fattr; 77dead28daSChuck Lever status = rpc_call_sync(client, &msg, 0); 783110ff80SHarvey Harrison dprintk("%s: reply getattr: %d\n", __func__, status); 7903c21733SJ. Bruce Fields } 8003c21733SJ. Bruce Fields return status; 8103c21733SJ. Bruce Fields } 8203c21733SJ. Bruce Fields 831da177e4SLinus Torvalds /* 8454ceac45SDavid Howells * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb 851da177e4SLinus Torvalds */ 861da177e4SLinus Torvalds static int 871da177e4SLinus Torvalds nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, 881da177e4SLinus Torvalds struct nfs_fsinfo *info) 891da177e4SLinus Torvalds { 901da177e4SLinus Torvalds int status; 911da177e4SLinus Torvalds 9203c21733SJ. Bruce Fields status = do_proc_get_root(server->client, fhandle, info); 935006a76cSDavid Howells if (status && server->nfs_client->cl_rpcclient != server->client) 945006a76cSDavid Howells status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info); 951da177e4SLinus Torvalds return status; 961da177e4SLinus Torvalds } 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds /* 991da177e4SLinus Torvalds * One function for each procedure in the NFS protocol. 1001da177e4SLinus Torvalds */ 1011da177e4SLinus Torvalds static int 1021da177e4SLinus Torvalds nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, 1032ef61e0eSAnna Schumaker struct nfs_fattr *fattr, struct inode *inode) 1041da177e4SLinus Torvalds { 105dead28daSChuck Lever struct rpc_message msg = { 106dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], 107dead28daSChuck Lever .rpc_argp = fhandle, 108dead28daSChuck Lever .rpc_resp = fattr, 109dead28daSChuck Lever }; 1101da177e4SLinus Torvalds int status; 111c74dfe97STrond Myklebust unsigned short task_flags = 0; 112c74dfe97STrond Myklebust 113c74dfe97STrond Myklebust /* Is this is an attribute revalidation, subject to softreval? */ 114c74dfe97STrond Myklebust if (inode && (server->flags & NFS_MOUNT_SOFTREVAL)) 115c74dfe97STrond Myklebust task_flags |= RPC_TASK_TIMEOUT; 1161da177e4SLinus Torvalds 1171da177e4SLinus Torvalds dprintk("NFS call getattr\n"); 1180e574af1STrond Myklebust nfs_fattr_init(fattr); 119c74dfe97STrond Myklebust status = rpc_call_sync(server->client, &msg, task_flags); 1201da177e4SLinus Torvalds dprintk("NFS reply getattr: %d\n", status); 1211da177e4SLinus Torvalds return status; 1221da177e4SLinus Torvalds } 1231da177e4SLinus Torvalds 1241da177e4SLinus Torvalds static int 1251da177e4SLinus Torvalds nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, 1261da177e4SLinus Torvalds struct iattr *sattr) 1271da177e4SLinus Torvalds { 1282b0143b5SDavid Howells struct inode *inode = d_inode(dentry); 1291da177e4SLinus Torvalds struct nfs3_sattrargs arg = { 1301da177e4SLinus Torvalds .fh = NFS_FH(inode), 1311da177e4SLinus Torvalds .sattr = sattr, 1321da177e4SLinus Torvalds }; 133dead28daSChuck Lever struct rpc_message msg = { 134dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], 135dead28daSChuck Lever .rpc_argp = &arg, 136dead28daSChuck Lever .rpc_resp = fattr, 137dead28daSChuck Lever }; 1381da177e4SLinus Torvalds int status; 1391da177e4SLinus Torvalds 1401da177e4SLinus Torvalds dprintk("NFS call setattr\n"); 141659bfcd6STrond Myklebust if (sattr->ia_valid & ATTR_FILE) 142659bfcd6STrond Myklebust msg.rpc_cred = nfs_file_cred(sattr->ia_file); 1430e574af1STrond Myklebust nfs_fattr_init(fattr); 144dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 145dbc898aeSchendt if (status == 0) { 146fe1e8dbeSSu Yanjun nfs_setattr_update_inode(inode, sattr, fattr); 147dbc898aeSchendt if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_ACL) 148dbc898aeSchendt nfs_zap_acl_cache(inode); 149dbc898aeSchendt } 1501da177e4SLinus Torvalds dprintk("NFS reply setattr: %d\n", status); 1511da177e4SLinus Torvalds return status; 1521da177e4SLinus Torvalds } 1531da177e4SLinus Torvalds 1541da177e4SLinus Torvalds static int 1555f447cb8STrond Myklebust __nfs3_proc_lookup(struct inode *dir, const char *name, size_t len, 1561775fd3eSDavid Quigley struct nfs_fh *fhandle, struct nfs_fattr *fattr, 1575f447cb8STrond Myklebust unsigned short task_flags) 1581da177e4SLinus Torvalds { 1591da177e4SLinus Torvalds struct nfs3_diropargs arg = { 1601da177e4SLinus Torvalds .fh = NFS_FH(dir), 1615f447cb8STrond Myklebust .name = name, 1625f447cb8STrond Myklebust .len = len 1631da177e4SLinus Torvalds }; 1641da177e4SLinus Torvalds struct nfs3_diropres res = { 1651da177e4SLinus Torvalds .fh = fhandle, 1661da177e4SLinus Torvalds .fattr = fattr 1671da177e4SLinus Torvalds }; 168dead28daSChuck Lever struct rpc_message msg = { 169dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], 170dead28daSChuck Lever .rpc_argp = &arg, 171dead28daSChuck Lever .rpc_resp = &res, 172dead28daSChuck Lever }; 1731da177e4SLinus Torvalds int status; 174f7b37b8bSTrond Myklebust 175e1fb4d05STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 176e1fb4d05STrond Myklebust if (res.dir_attr == NULL) 177e1fb4d05STrond Myklebust return -ENOMEM; 178e1fb4d05STrond Myklebust 1790e574af1STrond Myklebust nfs_fattr_init(fattr); 180f7b37b8bSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags); 181e1fb4d05STrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 182dead28daSChuck Lever if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { 183dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 184dead28daSChuck Lever msg.rpc_argp = fhandle; 185dead28daSChuck Lever msg.rpc_resp = fattr; 186f7b37b8bSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags); 187dead28daSChuck Lever } 188e1fb4d05STrond Myklebust nfs_free_fattr(res.dir_attr); 1891da177e4SLinus Torvalds dprintk("NFS reply lookup: %d\n", status); 1901da177e4SLinus Torvalds return status; 1911da177e4SLinus Torvalds } 1921da177e4SLinus Torvalds 1935f447cb8STrond Myklebust static int 1945f447cb8STrond Myklebust nfs3_proc_lookup(struct inode *dir, struct dentry *dentry, 1959558a007SAnna Schumaker struct nfs_fh *fhandle, struct nfs_fattr *fattr) 1965f447cb8STrond Myklebust { 1975f447cb8STrond Myklebust unsigned short task_flags = 0; 1985f447cb8STrond Myklebust 1995f447cb8STrond Myklebust /* Is this is an attribute revalidation, subject to softreval? */ 2005f447cb8STrond Myklebust if (nfs_lookup_is_soft_revalidate(dentry)) 2015f447cb8STrond Myklebust task_flags |= RPC_TASK_TIMEOUT; 2025f447cb8STrond Myklebust 2035f447cb8STrond Myklebust dprintk("NFS call lookup %pd2\n", dentry); 2045f447cb8STrond Myklebust return __nfs3_proc_lookup(dir, dentry->d_name.name, 2055f447cb8STrond Myklebust dentry->d_name.len, fhandle, fattr, 2065f447cb8STrond Myklebust task_flags); 2075f447cb8STrond Myklebust } 2085f447cb8STrond Myklebust 2093c5e9a59STrond Myklebust static int nfs3_proc_lookupp(struct inode *inode, struct nfs_fh *fhandle, 210ba4bc8dcSAnna Schumaker struct nfs_fattr *fattr) 2113c5e9a59STrond Myklebust { 2123c5e9a59STrond Myklebust const char dotdot[] = ".."; 2133c5e9a59STrond Myklebust const size_t len = strlen(dotdot); 2143c5e9a59STrond Myklebust unsigned short task_flags = 0; 2153c5e9a59STrond Myklebust 2163c5e9a59STrond Myklebust if (NFS_SERVER(inode)->flags & NFS_MOUNT_SOFTREVAL) 2173c5e9a59STrond Myklebust task_flags |= RPC_TASK_TIMEOUT; 2183c5e9a59STrond Myklebust 2193c5e9a59STrond Myklebust return __nfs3_proc_lookup(inode, dotdot, len, fhandle, fattr, 2203c5e9a59STrond Myklebust task_flags); 2213c5e9a59STrond Myklebust } 2223c5e9a59STrond Myklebust 2231da177e4SLinus Torvalds static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) 2241da177e4SLinus Torvalds { 2251da177e4SLinus Torvalds struct nfs3_accessargs arg = { 2261da177e4SLinus Torvalds .fh = NFS_FH(inode), 2271750d929SAnna Schumaker .access = entry->mask, 2281da177e4SLinus Torvalds }; 229c407d41aSTrond Myklebust struct nfs3_accessres res; 2301da177e4SLinus Torvalds struct rpc_message msg = { 2311da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], 2321da177e4SLinus Torvalds .rpc_argp = &arg, 2331da177e4SLinus Torvalds .rpc_resp = &res, 234a52458b4SNeilBrown .rpc_cred = entry->cred, 2351da177e4SLinus Torvalds }; 236c407d41aSTrond Myklebust int status = -ENOMEM; 2371da177e4SLinus Torvalds 2381da177e4SLinus Torvalds dprintk("NFS call access\n"); 239c407d41aSTrond Myklebust res.fattr = nfs_alloc_fattr(); 240c407d41aSTrond Myklebust if (res.fattr == NULL) 241c407d41aSTrond Myklebust goto out; 242c407d41aSTrond Myklebust 2431da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 244c407d41aSTrond Myklebust nfs_refresh_inode(inode, res.fattr); 245eda3e208STrond Myklebust if (status == 0) 246eda3e208STrond Myklebust nfs_access_set_mask(entry, res.access); 247c407d41aSTrond Myklebust nfs_free_fattr(res.fattr); 248c407d41aSTrond Myklebust out: 2491da177e4SLinus Torvalds dprintk("NFS reply access: %d\n", status); 2501da177e4SLinus Torvalds return status; 2511da177e4SLinus Torvalds } 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds static int nfs3_proc_readlink(struct inode *inode, struct page *page, 2541da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 2551da177e4SLinus Torvalds { 2563b14d654STrond Myklebust struct nfs_fattr *fattr; 2571da177e4SLinus Torvalds struct nfs3_readlinkargs args = { 2581da177e4SLinus Torvalds .fh = NFS_FH(inode), 2591da177e4SLinus Torvalds .pgbase = pgbase, 2601da177e4SLinus Torvalds .pglen = pglen, 2611da177e4SLinus Torvalds .pages = &page 2621da177e4SLinus Torvalds }; 263dead28daSChuck Lever struct rpc_message msg = { 264dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], 265dead28daSChuck Lever .rpc_argp = &args, 266dead28daSChuck Lever }; 2673b14d654STrond Myklebust int status = -ENOMEM; 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 2703b14d654STrond Myklebust fattr = nfs_alloc_fattr(); 2713b14d654STrond Myklebust if (fattr == NULL) 2723b14d654STrond Myklebust goto out; 2733b14d654STrond Myklebust msg.rpc_resp = fattr; 2743b14d654STrond Myklebust 275dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2763b14d654STrond Myklebust nfs_refresh_inode(inode, fattr); 2773b14d654STrond Myklebust nfs_free_fattr(fattr); 2783b14d654STrond Myklebust out: 2791da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 2801da177e4SLinus Torvalds return status; 2811da177e4SLinus Torvalds } 2821da177e4SLinus Torvalds 2830b4aae7aSTrond Myklebust struct nfs3_createdata { 2840b4aae7aSTrond Myklebust struct rpc_message msg; 2850b4aae7aSTrond Myklebust union { 2860b4aae7aSTrond Myklebust struct nfs3_createargs create; 2870b4aae7aSTrond Myklebust struct nfs3_mkdirargs mkdir; 2880b4aae7aSTrond Myklebust struct nfs3_symlinkargs symlink; 2890b4aae7aSTrond Myklebust struct nfs3_mknodargs mknod; 2900b4aae7aSTrond Myklebust } arg; 2910b4aae7aSTrond Myklebust struct nfs3_diropres res; 2920b4aae7aSTrond Myklebust struct nfs_fh fh; 2930b4aae7aSTrond Myklebust struct nfs_fattr fattr; 2940b4aae7aSTrond Myklebust struct nfs_fattr dir_attr; 2950b4aae7aSTrond Myklebust }; 2960b4aae7aSTrond Myklebust 2970b4aae7aSTrond Myklebust static struct nfs3_createdata *nfs3_alloc_createdata(void) 2980b4aae7aSTrond Myklebust { 2990b4aae7aSTrond Myklebust struct nfs3_createdata *data; 3000b4aae7aSTrond Myklebust 3010b4aae7aSTrond Myklebust data = kzalloc(sizeof(*data), GFP_KERNEL); 3020b4aae7aSTrond Myklebust if (data != NULL) { 3030b4aae7aSTrond Myklebust data->msg.rpc_argp = &data->arg; 3040b4aae7aSTrond Myklebust data->msg.rpc_resp = &data->res; 3050b4aae7aSTrond Myklebust data->res.fh = &data->fh; 3060b4aae7aSTrond Myklebust data->res.fattr = &data->fattr; 3070b4aae7aSTrond Myklebust data->res.dir_attr = &data->dir_attr; 3080b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 3090b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 3100b4aae7aSTrond Myklebust } 3110b4aae7aSTrond Myklebust return data; 3120b4aae7aSTrond Myklebust } 3130b4aae7aSTrond Myklebust 31417fd6e45SBenjamin Coddington static struct dentry * 31517fd6e45SBenjamin Coddington nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) 3160b4aae7aSTrond Myklebust { 3170b4aae7aSTrond Myklebust int status; 3180b4aae7aSTrond Myklebust 3190b4aae7aSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); 3200b4aae7aSTrond Myklebust nfs_post_op_update_inode(dir, data->res.dir_attr); 32117fd6e45SBenjamin Coddington if (status != 0) 32217fd6e45SBenjamin Coddington return ERR_PTR(status); 32317fd6e45SBenjamin Coddington 324*cc6f3298SAnna Schumaker return nfs_add_or_obtain(dentry, data->res.fh, data->res.fattr); 3250b4aae7aSTrond Myklebust } 3260b4aae7aSTrond Myklebust 3270b4aae7aSTrond Myklebust static void nfs3_free_createdata(struct nfs3_createdata *data) 3280b4aae7aSTrond Myklebust { 3290b4aae7aSTrond Myklebust kfree(data); 3300b4aae7aSTrond Myklebust } 3310b4aae7aSTrond Myklebust 3321da177e4SLinus Torvalds /* 3331da177e4SLinus Torvalds * Create a regular file. 3341da177e4SLinus Torvalds */ 3351da177e4SLinus Torvalds static int 3361da177e4SLinus Torvalds nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 3378867fe58SMiklos Szeredi int flags) 3381da177e4SLinus Torvalds { 339013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 3400b4aae7aSTrond Myklebust struct nfs3_createdata *data; 34117fd6e45SBenjamin Coddington struct dentry *d_alias; 3420b4aae7aSTrond Myklebust int status = -ENOMEM; 3431da177e4SLinus Torvalds 3446de1472fSAl Viro dprintk("NFS call create %pd\n", dentry); 3450b4aae7aSTrond Myklebust 3460b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 3470b4aae7aSTrond Myklebust if (data == NULL) 3480b4aae7aSTrond Myklebust goto out; 3490b4aae7aSTrond Myklebust 3500b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; 3510b4aae7aSTrond Myklebust data->arg.create.fh = NFS_FH(dir); 3520b4aae7aSTrond Myklebust data->arg.create.name = dentry->d_name.name; 3530b4aae7aSTrond Myklebust data->arg.create.len = dentry->d_name.len; 3540b4aae7aSTrond Myklebust data->arg.create.sattr = sattr; 3550b4aae7aSTrond Myklebust 3560b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3571da177e4SLinus Torvalds if (flags & O_EXCL) { 3580b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; 359a9943d11STrond Myklebust data->arg.create.verifier[0] = cpu_to_be32(jiffies); 360a9943d11STrond Myklebust data->arg.create.verifier[1] = cpu_to_be32(current->pid); 3611da177e4SLinus Torvalds } 3621da177e4SLinus Torvalds 363013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 364013cdf10SChristoph Hellwig if (status) 365013cdf10SChristoph Hellwig goto out; 366055ffbeaSAndreas Gruenbacher 3670b4aae7aSTrond Myklebust for (;;) { 36817fd6e45SBenjamin Coddington d_alias = nfs3_do_create(dir, dentry, data); 36917fd6e45SBenjamin Coddington status = PTR_ERR_OR_ZERO(d_alias); 3701da177e4SLinus Torvalds 3710b4aae7aSTrond Myklebust if (status != -ENOTSUPP) 3720b4aae7aSTrond Myklebust break; 3730b4aae7aSTrond Myklebust /* If the server doesn't support the exclusive creation 3740b4aae7aSTrond Myklebust * semantics, try again with simple 'guarded' mode. */ 3750b4aae7aSTrond Myklebust switch (data->arg.create.createmode) { 3761da177e4SLinus Torvalds case NFS3_CREATE_EXCLUSIVE: 3770b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_GUARDED; 3781da177e4SLinus Torvalds break; 3791da177e4SLinus Torvalds 3801da177e4SLinus Torvalds case NFS3_CREATE_GUARDED: 3810b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3821da177e4SLinus Torvalds break; 3831da177e4SLinus Torvalds 3841da177e4SLinus Torvalds case NFS3_CREATE_UNCHECKED: 3851fcb6fcdSGao Xiang goto out_release_acls; 3861da177e4SLinus Torvalds } 3870b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 3880b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 3891da177e4SLinus Torvalds } 3901da177e4SLinus Torvalds 3911da177e4SLinus Torvalds if (status != 0) 392013cdf10SChristoph Hellwig goto out_release_acls; 3931da177e4SLinus Torvalds 39417fd6e45SBenjamin Coddington if (d_alias) 39517fd6e45SBenjamin Coddington dentry = d_alias; 39617fd6e45SBenjamin Coddington 3971da177e4SLinus Torvalds /* When we created the file with exclusive semantics, make 3981da177e4SLinus Torvalds * sure we set the attributes afterwards. */ 3990b4aae7aSTrond Myklebust if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { 4001da177e4SLinus Torvalds dprintk("NFS call setattr (post-create)\n"); 4011da177e4SLinus Torvalds 4021da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_ATIME_SET)) 4031da177e4SLinus Torvalds sattr->ia_valid |= ATTR_ATIME; 4041da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_MTIME_SET)) 4051da177e4SLinus Torvalds sattr->ia_valid |= ATTR_MTIME; 4061da177e4SLinus Torvalds 4071da177e4SLinus Torvalds /* Note: we could use a guarded setattr here, but I'm 4081da177e4SLinus Torvalds * not sure this buys us anything (and I'd have 4091da177e4SLinus Torvalds * to revamp the NFSv3 XDR code) */ 4100b4aae7aSTrond Myklebust status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); 4112b0143b5SDavid Howells nfs_post_op_update_inode(d_inode(dentry), data->res.fattr); 4121da177e4SLinus Torvalds dprintk("NFS reply setattr (post-create): %d\n", status); 413055ffbeaSAndreas Gruenbacher if (status != 0) 41417fd6e45SBenjamin Coddington goto out_dput; 4150b4aae7aSTrond Myklebust } 416013cdf10SChristoph Hellwig 4172b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 418013cdf10SChristoph Hellwig 41917fd6e45SBenjamin Coddington out_dput: 42017fd6e45SBenjamin Coddington dput(d_alias); 421013cdf10SChristoph Hellwig out_release_acls: 422013cdf10SChristoph Hellwig posix_acl_release(acl); 423013cdf10SChristoph Hellwig posix_acl_release(default_acl); 4241da177e4SLinus Torvalds out: 4250b4aae7aSTrond Myklebust nfs3_free_createdata(data); 4261da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 4271da177e4SLinus Torvalds return status; 4281da177e4SLinus Torvalds } 4291da177e4SLinus Torvalds 4301da177e4SLinus Torvalds static int 431912678dbSTrond Myklebust nfs3_proc_remove(struct inode *dir, struct dentry *dentry) 4321da177e4SLinus Torvalds { 4334fdc17b2STrond Myklebust struct nfs_removeargs arg = { 4341da177e4SLinus Torvalds .fh = NFS_FH(dir), 435912678dbSTrond Myklebust .name = dentry->d_name, 4361da177e4SLinus Torvalds }; 4374fdc17b2STrond Myklebust struct nfs_removeres res; 4381da177e4SLinus Torvalds struct rpc_message msg = { 4391da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], 4401da177e4SLinus Torvalds .rpc_argp = &arg, 4414fdc17b2STrond Myklebust .rpc_resp = &res, 4421da177e4SLinus Torvalds }; 443d346890bSTrond Myklebust int status = -ENOMEM; 4441da177e4SLinus Torvalds 445912678dbSTrond Myklebust dprintk("NFS call remove %pd2\n", dentry); 446d346890bSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 447d346890bSTrond Myklebust if (res.dir_attr == NULL) 448d346890bSTrond Myklebust goto out; 449d346890bSTrond Myklebust 4501da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 451d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 452d346890bSTrond Myklebust nfs_free_fattr(res.dir_attr); 453d346890bSTrond Myklebust out: 4541da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 4551da177e4SLinus Torvalds return status; 4561da177e4SLinus Torvalds } 4571da177e4SLinus Torvalds 458e4eff1a6STrond Myklebust static void 459ed7e9ad0STrond Myklebust nfs3_proc_unlink_setup(struct rpc_message *msg, 460ed7e9ad0STrond Myklebust struct dentry *dentry, 461ed7e9ad0STrond Myklebust struct inode *inode) 4621da177e4SLinus Torvalds { 4631da177e4SLinus Torvalds msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; 4641da177e4SLinus Torvalds } 4651da177e4SLinus Torvalds 46634e137ccSBryan Schumaker static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data) 46734e137ccSBryan Schumaker { 46834e137ccSBryan Schumaker rpc_call_start(task); 46934e137ccSBryan Schumaker } 47034e137ccSBryan Schumaker 4711da177e4SLinus Torvalds static int 472e4eff1a6STrond Myklebust nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) 4731da177e4SLinus Torvalds { 474e4eff1a6STrond Myklebust struct nfs_removeres *res; 475e4eff1a6STrond Myklebust if (nfs3_async_handle_jukebox(task, dir)) 4761da177e4SLinus Torvalds return 0; 477e4eff1a6STrond Myklebust res = task->tk_msg.rpc_resp; 478d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res->dir_attr); 479e4eff1a6STrond Myklebust return 1; 4801da177e4SLinus Torvalds } 4811da177e4SLinus Torvalds 482d3d4152aSJeff Layton static void 483f2c2c552STrond Myklebust nfs3_proc_rename_setup(struct rpc_message *msg, 484f2c2c552STrond Myklebust struct dentry *old_dentry, 485f2c2c552STrond Myklebust struct dentry *new_dentry) 486d3d4152aSJeff Layton { 487d3d4152aSJeff Layton msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME]; 488d3d4152aSJeff Layton } 489d3d4152aSJeff Layton 490c6bfa1a1SBryan Schumaker static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data) 491c6bfa1a1SBryan Schumaker { 492c6bfa1a1SBryan Schumaker rpc_call_start(task); 493c6bfa1a1SBryan Schumaker } 494c6bfa1a1SBryan Schumaker 495d3d4152aSJeff Layton static int 496d3d4152aSJeff Layton nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir, 497d3d4152aSJeff Layton struct inode *new_dir) 498d3d4152aSJeff Layton { 499d3d4152aSJeff Layton struct nfs_renameres *res; 500d3d4152aSJeff Layton 501d3d4152aSJeff Layton if (nfs3_async_handle_jukebox(task, old_dir)) 502d3d4152aSJeff Layton return 0; 503d3d4152aSJeff Layton res = task->tk_msg.rpc_resp; 504d3d4152aSJeff Layton 505d3d4152aSJeff Layton nfs_post_op_update_inode(old_dir, res->old_fattr); 506d3d4152aSJeff Layton nfs_post_op_update_inode(new_dir, res->new_fattr); 507d3d4152aSJeff Layton return 1; 508d3d4152aSJeff Layton } 509d3d4152aSJeff Layton 5101da177e4SLinus Torvalds static int 511beffb8feSAl Viro nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name) 5121da177e4SLinus Torvalds { 5131da177e4SLinus Torvalds struct nfs3_linkargs arg = { 5141da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 5151da177e4SLinus Torvalds .tofh = NFS_FH(dir), 5161da177e4SLinus Torvalds .toname = name->name, 5171da177e4SLinus Torvalds .tolen = name->len 5181da177e4SLinus Torvalds }; 519136f2627STrond Myklebust struct nfs3_linkres res; 520dead28daSChuck Lever struct rpc_message msg = { 521dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], 522dead28daSChuck Lever .rpc_argp = &arg, 523dead28daSChuck Lever .rpc_resp = &res, 524dead28daSChuck Lever }; 525136f2627STrond Myklebust int status = -ENOMEM; 5261da177e4SLinus Torvalds 5271da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 528136f2627STrond Myklebust res.fattr = nfs_alloc_fattr(); 529136f2627STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 530136f2627STrond Myklebust if (res.fattr == NULL || res.dir_attr == NULL) 531136f2627STrond Myklebust goto out; 532136f2627STrond Myklebust 533dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 534136f2627STrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 535136f2627STrond Myklebust nfs_post_op_update_inode(inode, res.fattr); 536136f2627STrond Myklebust out: 537136f2627STrond Myklebust nfs_free_fattr(res.dir_attr); 538136f2627STrond Myklebust nfs_free_fattr(res.fattr); 5391da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 5401da177e4SLinus Torvalds return status; 5411da177e4SLinus Torvalds } 5421da177e4SLinus Torvalds 5431da177e4SLinus Torvalds static int 54494a6d753SChuck Lever nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, 54594a6d753SChuck Lever unsigned int len, struct iattr *sattr) 5461da177e4SLinus Torvalds { 5470b4aae7aSTrond Myklebust struct nfs3_createdata *data; 54817fd6e45SBenjamin Coddington struct dentry *d_alias; 5490b4aae7aSTrond Myklebust int status = -ENOMEM; 5501da177e4SLinus Torvalds 55194a6d753SChuck Lever if (len > NFS3_MAXPATHLEN) 5521da177e4SLinus Torvalds return -ENAMETOOLONG; 5534f390c15SChuck Lever 5546de1472fSAl Viro dprintk("NFS call symlink %pd\n", dentry); 55594a6d753SChuck Lever 5560b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5570b4aae7aSTrond Myklebust if (data == NULL) 5584f390c15SChuck Lever goto out; 5590b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; 5600b4aae7aSTrond Myklebust data->arg.symlink.fromfh = NFS_FH(dir); 5610b4aae7aSTrond Myklebust data->arg.symlink.fromname = dentry->d_name.name; 5620b4aae7aSTrond Myklebust data->arg.symlink.fromlen = dentry->d_name.len; 5630b4aae7aSTrond Myklebust data->arg.symlink.pages = &page; 5640b4aae7aSTrond Myklebust data->arg.symlink.pathlen = len; 5650b4aae7aSTrond Myklebust data->arg.symlink.sattr = sattr; 5660b4aae7aSTrond Myklebust 56717fd6e45SBenjamin Coddington d_alias = nfs3_do_create(dir, dentry, data); 56817fd6e45SBenjamin Coddington status = PTR_ERR_OR_ZERO(d_alias); 56917fd6e45SBenjamin Coddington 57017fd6e45SBenjamin Coddington if (status == 0) 57117fd6e45SBenjamin Coddington dput(d_alias); 5720b4aae7aSTrond Myklebust 5730b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5744f390c15SChuck Lever out: 5751da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 5761da177e4SLinus Torvalds return status; 5771da177e4SLinus Torvalds } 5781da177e4SLinus Torvalds 5791da177e4SLinus Torvalds static int 5801da177e4SLinus Torvalds nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 5811da177e4SLinus Torvalds { 582013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 5830b4aae7aSTrond Myklebust struct nfs3_createdata *data; 58417fd6e45SBenjamin Coddington struct dentry *d_alias; 5850b4aae7aSTrond Myklebust int status = -ENOMEM; 5861da177e4SLinus Torvalds 5876de1472fSAl Viro dprintk("NFS call mkdir %pd\n", dentry); 588055ffbeaSAndreas Gruenbacher 5890b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5900b4aae7aSTrond Myklebust if (data == NULL) 5910b4aae7aSTrond Myklebust goto out; 5920b4aae7aSTrond Myklebust 593013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 594013cdf10SChristoph Hellwig if (status) 595013cdf10SChristoph Hellwig goto out; 596013cdf10SChristoph Hellwig 5970b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; 5980b4aae7aSTrond Myklebust data->arg.mkdir.fh = NFS_FH(dir); 5990b4aae7aSTrond Myklebust data->arg.mkdir.name = dentry->d_name.name; 6000b4aae7aSTrond Myklebust data->arg.mkdir.len = dentry->d_name.len; 6010b4aae7aSTrond Myklebust data->arg.mkdir.sattr = sattr; 6020b4aae7aSTrond Myklebust 60317fd6e45SBenjamin Coddington d_alias = nfs3_do_create(dir, dentry, data); 60417fd6e45SBenjamin Coddington status = PTR_ERR_OR_ZERO(d_alias); 60517fd6e45SBenjamin Coddington 606055ffbeaSAndreas Gruenbacher if (status != 0) 607013cdf10SChristoph Hellwig goto out_release_acls; 6080b4aae7aSTrond Myklebust 60917fd6e45SBenjamin Coddington if (d_alias) 61017fd6e45SBenjamin Coddington dentry = d_alias; 61117fd6e45SBenjamin Coddington 6122b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 613013cdf10SChristoph Hellwig 61417fd6e45SBenjamin Coddington dput(d_alias); 615013cdf10SChristoph Hellwig out_release_acls: 616013cdf10SChristoph Hellwig posix_acl_release(acl); 617013cdf10SChristoph Hellwig posix_acl_release(default_acl); 618055ffbeaSAndreas Gruenbacher out: 6190b4aae7aSTrond Myklebust nfs3_free_createdata(data); 6201da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 6211da177e4SLinus Torvalds return status; 6221da177e4SLinus Torvalds } 6231da177e4SLinus Torvalds 6241da177e4SLinus Torvalds static int 625beffb8feSAl Viro nfs3_proc_rmdir(struct inode *dir, const struct qstr *name) 6261da177e4SLinus Torvalds { 62739967ddfSTrond Myklebust struct nfs_fattr *dir_attr; 6281da177e4SLinus Torvalds struct nfs3_diropargs arg = { 6291da177e4SLinus Torvalds .fh = NFS_FH(dir), 6301da177e4SLinus Torvalds .name = name->name, 6311da177e4SLinus Torvalds .len = name->len 6321da177e4SLinus Torvalds }; 633dead28daSChuck Lever struct rpc_message msg = { 634dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], 635dead28daSChuck Lever .rpc_argp = &arg, 636dead28daSChuck Lever }; 63739967ddfSTrond Myklebust int status = -ENOMEM; 6381da177e4SLinus Torvalds 6391da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 64039967ddfSTrond Myklebust dir_attr = nfs_alloc_fattr(); 64139967ddfSTrond Myklebust if (dir_attr == NULL) 64239967ddfSTrond Myklebust goto out; 64339967ddfSTrond Myklebust 64439967ddfSTrond Myklebust msg.rpc_resp = dir_attr; 645dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 64639967ddfSTrond Myklebust nfs_post_op_update_inode(dir, dir_attr); 64739967ddfSTrond Myklebust nfs_free_fattr(dir_attr); 64839967ddfSTrond Myklebust out: 6491da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 6501da177e4SLinus Torvalds return status; 6511da177e4SLinus Torvalds } 6521da177e4SLinus Torvalds 6531da177e4SLinus Torvalds /* 6541da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass the user buffer 6551da177e4SLinus Torvalds * to the encode function, which installs it in the receive iovec. 6561da177e4SLinus Torvalds * The decode function itself doesn't perform any decoding, it just makes 6571da177e4SLinus Torvalds * sure the reply is syntactically correct. 6581da177e4SLinus Torvalds * 6591da177e4SLinus Torvalds * Also note that this implementation handles both plain readdir and 6601da177e4SLinus Torvalds * readdirplus. 6611da177e4SLinus Torvalds */ 66282e22a5eSTrond Myklebust static int nfs3_proc_readdir(struct nfs_readdir_arg *nr_arg, 66382e22a5eSTrond Myklebust struct nfs_readdir_res *nr_res) 6641da177e4SLinus Torvalds { 66582e22a5eSTrond Myklebust struct inode *dir = d_inode(nr_arg->dentry); 6661da177e4SLinus Torvalds struct nfs3_readdirargs arg = { 6671da177e4SLinus Torvalds .fh = NFS_FH(dir), 66882e22a5eSTrond Myklebust .cookie = nr_arg->cookie, 66982e22a5eSTrond Myklebust .plus = nr_arg->plus, 67082e22a5eSTrond Myklebust .count = nr_arg->page_len, 67182e22a5eSTrond Myklebust .pages = nr_arg->pages 6721da177e4SLinus Torvalds }; 6731da177e4SLinus Torvalds struct nfs3_readdirres res = { 67482e22a5eSTrond Myklebust .verf = nr_res->verf, 67582e22a5eSTrond Myklebust .plus = nr_arg->plus, 6761da177e4SLinus Torvalds }; 6771da177e4SLinus Torvalds struct rpc_message msg = { 6781da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], 6791da177e4SLinus Torvalds .rpc_argp = &arg, 6801da177e4SLinus Torvalds .rpc_resp = &res, 68182e22a5eSTrond Myklebust .rpc_cred = nr_arg->cred, 6821da177e4SLinus Torvalds }; 683aa49b4cfSTrond Myklebust int status = -ENOMEM; 6841da177e4SLinus Torvalds 68582e22a5eSTrond Myklebust if (nr_arg->plus) 6861da177e4SLinus Torvalds msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; 68782e22a5eSTrond Myklebust if (arg.cookie) 68882e22a5eSTrond Myklebust memcpy(arg.verf, nr_arg->verf, sizeof(arg.verf)); 6891da177e4SLinus Torvalds 69082e22a5eSTrond Myklebust dprintk("NFS call readdir%s %llu\n", nr_arg->plus ? "plus" : "", 69182e22a5eSTrond Myklebust (unsigned long long)nr_arg->cookie); 6921da177e4SLinus Torvalds 693aa49b4cfSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 694aa49b4cfSTrond Myklebust if (res.dir_attr == NULL) 695aa49b4cfSTrond Myklebust goto out; 696aa49b4cfSTrond Myklebust 6971da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 698c4812998STrond Myklebust 699c4812998STrond Myklebust nfs_invalidate_atime(dir); 700aa49b4cfSTrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 701c4812998STrond Myklebust 702aa49b4cfSTrond Myklebust nfs_free_fattr(res.dir_attr); 703aa49b4cfSTrond Myklebust out: 70482e22a5eSTrond Myklebust dprintk("NFS reply readdir%s: %d\n", nr_arg->plus ? "plus" : "", 70582e22a5eSTrond Myklebust status); 7061da177e4SLinus Torvalds return status; 7071da177e4SLinus Torvalds } 7081da177e4SLinus Torvalds 7091da177e4SLinus Torvalds static int 7101da177e4SLinus Torvalds nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 7111da177e4SLinus Torvalds dev_t rdev) 7121da177e4SLinus Torvalds { 713013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 7140b4aae7aSTrond Myklebust struct nfs3_createdata *data; 71517fd6e45SBenjamin Coddington struct dentry *d_alias; 7160b4aae7aSTrond Myklebust int status = -ENOMEM; 7171da177e4SLinus Torvalds 7186de1472fSAl Viro dprintk("NFS call mknod %pd %u:%u\n", dentry, 7191da177e4SLinus Torvalds MAJOR(rdev), MINOR(rdev)); 720055ffbeaSAndreas Gruenbacher 7210b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 7220b4aae7aSTrond Myklebust if (data == NULL) 723055ffbeaSAndreas Gruenbacher goto out; 7240b4aae7aSTrond Myklebust 725013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 726013cdf10SChristoph Hellwig if (status) 727013cdf10SChristoph Hellwig goto out; 728013cdf10SChristoph Hellwig 7290b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; 7300b4aae7aSTrond Myklebust data->arg.mknod.fh = NFS_FH(dir); 7310b4aae7aSTrond Myklebust data->arg.mknod.name = dentry->d_name.name; 7320b4aae7aSTrond Myklebust data->arg.mknod.len = dentry->d_name.len; 7330b4aae7aSTrond Myklebust data->arg.mknod.sattr = sattr; 7340b4aae7aSTrond Myklebust data->arg.mknod.rdev = rdev; 7350b4aae7aSTrond Myklebust 7360b4aae7aSTrond Myklebust switch (sattr->ia_mode & S_IFMT) { 7370b4aae7aSTrond Myklebust case S_IFBLK: 7380b4aae7aSTrond Myklebust data->arg.mknod.type = NF3BLK; 7390b4aae7aSTrond Myklebust break; 7400b4aae7aSTrond Myklebust case S_IFCHR: 7410b4aae7aSTrond Myklebust data->arg.mknod.type = NF3CHR; 7420b4aae7aSTrond Myklebust break; 7430b4aae7aSTrond Myklebust case S_IFIFO: 7440b4aae7aSTrond Myklebust data->arg.mknod.type = NF3FIFO; 7450b4aae7aSTrond Myklebust break; 7460b4aae7aSTrond Myklebust case S_IFSOCK: 7470b4aae7aSTrond Myklebust data->arg.mknod.type = NF3SOCK; 7480b4aae7aSTrond Myklebust break; 7490b4aae7aSTrond Myklebust default: 7500b4aae7aSTrond Myklebust status = -EINVAL; 7511fcb6fcdSGao Xiang goto out_release_acls; 7520b4aae7aSTrond Myklebust } 7530b4aae7aSTrond Myklebust 75417fd6e45SBenjamin Coddington d_alias = nfs3_do_create(dir, dentry, data); 75517fd6e45SBenjamin Coddington status = PTR_ERR_OR_ZERO(d_alias); 756055ffbeaSAndreas Gruenbacher if (status != 0) 757013cdf10SChristoph Hellwig goto out_release_acls; 758013cdf10SChristoph Hellwig 75917fd6e45SBenjamin Coddington if (d_alias) 76017fd6e45SBenjamin Coddington dentry = d_alias; 76117fd6e45SBenjamin Coddington 7622b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 763013cdf10SChristoph Hellwig 76417fd6e45SBenjamin Coddington dput(d_alias); 765013cdf10SChristoph Hellwig out_release_acls: 766013cdf10SChristoph Hellwig posix_acl_release(acl); 767013cdf10SChristoph Hellwig posix_acl_release(default_acl); 768055ffbeaSAndreas Gruenbacher out: 7690b4aae7aSTrond Myklebust nfs3_free_createdata(data); 7701da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 7711da177e4SLinus Torvalds return status; 7721da177e4SLinus Torvalds } 7731da177e4SLinus Torvalds 7741da177e4SLinus Torvalds static int 7751da177e4SLinus Torvalds nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 7761da177e4SLinus Torvalds struct nfs_fsstat *stat) 7771da177e4SLinus Torvalds { 778dead28daSChuck Lever struct rpc_message msg = { 779dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], 780dead28daSChuck Lever .rpc_argp = fhandle, 781dead28daSChuck Lever .rpc_resp = stat, 782dead28daSChuck Lever }; 7831da177e4SLinus Torvalds int status; 7841da177e4SLinus Torvalds 7851da177e4SLinus Torvalds dprintk("NFS call fsstat\n"); 7860e574af1STrond Myklebust nfs_fattr_init(stat->fattr); 787dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 788d141d974SChuck Lever dprintk("NFS reply fsstat: %d\n", status); 7891da177e4SLinus Torvalds return status; 7901da177e4SLinus Torvalds } 7911da177e4SLinus Torvalds 7921da177e4SLinus Torvalds static int 79337ca8f5cSEG Keizer do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle, 7941da177e4SLinus Torvalds struct nfs_fsinfo *info) 7951da177e4SLinus Torvalds { 796dead28daSChuck Lever struct rpc_message msg = { 797dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 798dead28daSChuck Lever .rpc_argp = fhandle, 799dead28daSChuck Lever .rpc_resp = info, 800dead28daSChuck Lever }; 8011da177e4SLinus Torvalds int status; 8021da177e4SLinus Torvalds 8031da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 8040e574af1STrond Myklebust nfs_fattr_init(info->fattr); 80537ca8f5cSEG Keizer status = rpc_call_sync(client, &msg, 0); 8061da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 8071da177e4SLinus Torvalds return status; 8081da177e4SLinus Torvalds } 8091da177e4SLinus Torvalds 81037ca8f5cSEG Keizer /* 81137ca8f5cSEG Keizer * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via 81237ca8f5cSEG Keizer * nfs_create_server 81337ca8f5cSEG Keizer */ 81437ca8f5cSEG Keizer static int 81537ca8f5cSEG Keizer nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 81637ca8f5cSEG Keizer struct nfs_fsinfo *info) 81737ca8f5cSEG Keizer { 81837ca8f5cSEG Keizer int status; 81937ca8f5cSEG Keizer 82037ca8f5cSEG Keizer status = do_proc_fsinfo(server->client, fhandle, info); 82137ca8f5cSEG Keizer if (status && server->nfs_client->cl_rpcclient != server->client) 82237ca8f5cSEG Keizer status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); 82337ca8f5cSEG Keizer return status; 82437ca8f5cSEG Keizer } 82537ca8f5cSEG Keizer 8261da177e4SLinus Torvalds static int 8271da177e4SLinus Torvalds nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 8281da177e4SLinus Torvalds struct nfs_pathconf *info) 8291da177e4SLinus Torvalds { 830dead28daSChuck Lever struct rpc_message msg = { 831dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], 832dead28daSChuck Lever .rpc_argp = fhandle, 833dead28daSChuck Lever .rpc_resp = info, 834dead28daSChuck Lever }; 8351da177e4SLinus Torvalds int status; 8361da177e4SLinus Torvalds 8371da177e4SLinus Torvalds dprintk("NFS call pathconf\n"); 8380e574af1STrond Myklebust nfs_fattr_init(info->fattr); 839dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 8401da177e4SLinus Torvalds dprintk("NFS reply pathconf: %d\n", status); 8411da177e4SLinus Torvalds return status; 8421da177e4SLinus Torvalds } 8431da177e4SLinus Torvalds 844d45f60c6SWeston Andros Adamson static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 8451da177e4SLinus Torvalds { 846d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 8478d8928d8STrond Myklebust struct nfs_server *server = NFS_SERVER(inode); 848cd841605SFred Isaman 84916cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 85016cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 85116cecdf6STrond Myklebust 852cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 853ec06c096STrond Myklebust return -EAGAIN; 8548850df99STrond Myklebust 8558d8928d8STrond Myklebust if (task->tk_status >= 0 && !server->read_hdrsize) 8568d8928d8STrond Myklebust cmpxchg(&server->read_hdrsize, 0, hdr->res.replen); 8578d8928d8STrond Myklebust 858cd841605SFred Isaman nfs_invalidate_atime(inode); 859d45f60c6SWeston Andros Adamson nfs_refresh_inode(inode, &hdr->fattr); 860ec06c096STrond Myklebust return 0; 8611da177e4SLinus Torvalds } 8621da177e4SLinus Torvalds 863d45f60c6SWeston Andros Adamson static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr, 864d45f60c6SWeston Andros Adamson struct rpc_message *msg) 8651da177e4SLinus Torvalds { 866bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; 8678d8928d8STrond Myklebust hdr->args.replen = NFS_SERVER(hdr->inode)->read_hdrsize; 8681da177e4SLinus Torvalds } 8691da177e4SLinus Torvalds 870d45f60c6SWeston Andros Adamson static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task, 871d45f60c6SWeston Andros Adamson struct nfs_pgio_header *hdr) 872ea7c3303SBryan Schumaker { 873ea7c3303SBryan Schumaker rpc_call_start(task); 874ef1820f9SNeilBrown return 0; 875ea7c3303SBryan Schumaker } 876ea7c3303SBryan Schumaker 877d45f60c6SWeston Andros Adamson static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 8781da177e4SLinus Torvalds { 879d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 880cd841605SFred Isaman 88116cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 88216cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 88316cecdf6STrond Myklebust 884cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 885788e7a89STrond Myklebust return -EAGAIN; 8861da177e4SLinus Torvalds if (task->tk_status >= 0) 887a08a8cd3STrond Myklebust nfs_writeback_update_inode(hdr); 888788e7a89STrond Myklebust return 0; 8891da177e4SLinus Torvalds } 8901da177e4SLinus Torvalds 891d45f60c6SWeston Andros Adamson static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr, 892fb91fb0eSAnna Schumaker struct rpc_message *msg, 893fb91fb0eSAnna Schumaker struct rpc_clnt **clnt) 8941da177e4SLinus Torvalds { 895bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; 8961da177e4SLinus Torvalds } 8971da177e4SLinus Torvalds 8980b7c0153SFred Isaman static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data) 8990b7c0153SFred Isaman { 9000b7c0153SFred Isaman rpc_call_start(task); 9010b7c0153SFred Isaman } 9020b7c0153SFred Isaman 9030b7c0153SFred Isaman static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data) 9041da177e4SLinus Torvalds { 90516cecdf6STrond Myklebust if (data->commit_done_cb != NULL) 90616cecdf6STrond Myklebust return data->commit_done_cb(task, data); 90716cecdf6STrond Myklebust 908006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 909788e7a89STrond Myklebust return -EAGAIN; 9109e08a3c5STrond Myklebust nfs_refresh_inode(data->inode, data->res.fattr); 911788e7a89STrond Myklebust return 0; 9121da177e4SLinus Torvalds } 9131da177e4SLinus Torvalds 914e9ae1ee2SAnna Schumaker static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg, 915e9ae1ee2SAnna Schumaker struct rpc_clnt **clnt) 9161da177e4SLinus Torvalds { 917bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; 9181da177e4SLinus Torvalds } 9191da177e4SLinus Torvalds 920bb3393d5STrond Myklebust static void nfs3_nlm_alloc_call(void *data) 921f30cb757SBenjamin Coddington { 922f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 923f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) { 924f30cb757SBenjamin Coddington get_nfs_open_context(l_ctx->open_context); 925f30cb757SBenjamin Coddington nfs_get_lock_context(l_ctx->open_context); 926f30cb757SBenjamin Coddington } 927f30cb757SBenjamin Coddington } 928f30cb757SBenjamin Coddington 929bb3393d5STrond Myklebust static bool nfs3_nlm_unlock_prepare(struct rpc_task *task, void *data) 930f30cb757SBenjamin Coddington { 931f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 932f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) 933f30cb757SBenjamin Coddington return nfs_async_iocounter_wait(task, l_ctx); 934f30cb757SBenjamin Coddington return false; 935f30cb757SBenjamin Coddington 936f30cb757SBenjamin Coddington } 937f30cb757SBenjamin Coddington 938bb3393d5STrond Myklebust static void nfs3_nlm_release_call(void *data) 939f30cb757SBenjamin Coddington { 940f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 941f30cb757SBenjamin Coddington struct nfs_open_context *ctx; 942f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) { 943f30cb757SBenjamin Coddington ctx = l_ctx->open_context; 944f30cb757SBenjamin Coddington nfs_put_lock_context(l_ctx); 945f30cb757SBenjamin Coddington put_nfs_open_context(ctx); 946f30cb757SBenjamin Coddington } 947f30cb757SBenjamin Coddington } 948f30cb757SBenjamin Coddington 9491b720406SColin Ian King static const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = { 950f30cb757SBenjamin Coddington .nlmclnt_alloc_call = nfs3_nlm_alloc_call, 951f30cb757SBenjamin Coddington .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare, 952f30cb757SBenjamin Coddington .nlmclnt_release_call = nfs3_nlm_release_call, 953f30cb757SBenjamin Coddington }; 954f30cb757SBenjamin Coddington 9551da177e4SLinus Torvalds static int 9561da177e4SLinus Torvalds nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) 9571da177e4SLinus Torvalds { 958496ad9aaSAl Viro struct inode *inode = file_inode(filp); 959f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = NULL; 960f30cb757SBenjamin Coddington struct nfs_open_context *ctx = nfs_file_open_context(filp); 961f30cb757SBenjamin Coddington int status; 9621093a60eSChuck Lever 963f30cb757SBenjamin Coddington if (fl->fl_flags & FL_CLOSE) { 964f30cb757SBenjamin Coddington l_ctx = nfs_get_lock_context(ctx); 965f30cb757SBenjamin Coddington if (IS_ERR(l_ctx)) 966f30cb757SBenjamin Coddington l_ctx = NULL; 967f30cb757SBenjamin Coddington else 968f30cb757SBenjamin Coddington set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags); 969f30cb757SBenjamin Coddington } 970f30cb757SBenjamin Coddington 971f30cb757SBenjamin Coddington status = nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, l_ctx); 972f30cb757SBenjamin Coddington 973f30cb757SBenjamin Coddington if (l_ctx) 974f30cb757SBenjamin Coddington nfs_put_lock_context(l_ctx); 975f30cb757SBenjamin Coddington 976f30cb757SBenjamin Coddington return status; 9771da177e4SLinus Torvalds } 9781da177e4SLinus Torvalds 979011e2a7fSBryan Schumaker static int nfs3_have_delegation(struct inode *inode, fmode_t flags) 980011e2a7fSBryan Schumaker { 981011e2a7fSBryan Schumaker return 0; 982011e2a7fSBryan Schumaker } 983011e2a7fSBryan Schumaker 984ab96291eSBryan Schumaker static const struct inode_operations nfs3_dir_inode_operations = { 985ab96291eSBryan Schumaker .create = nfs_create, 986ab96291eSBryan Schumaker .lookup = nfs_lookup, 987ab96291eSBryan Schumaker .link = nfs_link, 988ab96291eSBryan Schumaker .unlink = nfs_unlink, 989ab96291eSBryan Schumaker .symlink = nfs_symlink, 990ab96291eSBryan Schumaker .mkdir = nfs_mkdir, 991ab96291eSBryan Schumaker .rmdir = nfs_rmdir, 992ab96291eSBryan Schumaker .mknod = nfs_mknod, 993ab96291eSBryan Schumaker .rename = nfs_rename, 994ab96291eSBryan Schumaker .permission = nfs_permission, 995ab96291eSBryan Schumaker .getattr = nfs_getattr, 996ab96291eSBryan Schumaker .setattr = nfs_setattr, 9975f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 99874adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 999013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 1000013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 1001013cdf10SChristoph Hellwig #endif 1002ab96291eSBryan Schumaker }; 1003ab96291eSBryan Schumaker 1004ab96291eSBryan Schumaker static const struct inode_operations nfs3_file_inode_operations = { 1005ab96291eSBryan Schumaker .permission = nfs_permission, 1006ab96291eSBryan Schumaker .getattr = nfs_getattr, 1007ab96291eSBryan Schumaker .setattr = nfs_setattr, 10085f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 100974adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 1010013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 1011013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 1012013cdf10SChristoph Hellwig #endif 1013ab96291eSBryan Schumaker }; 1014ab96291eSBryan Schumaker 1015509de811SDavid Howells const struct nfs_rpc_ops nfs_v3_clientops = { 10161da177e4SLinus Torvalds .version = 3, /* protocol version */ 10171da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 1018b7fa0554SAndreas Gruenbacher .dir_inode_ops = &nfs3_dir_inode_operations, 1019b7fa0554SAndreas Gruenbacher .file_inode_ops = &nfs3_file_inode_operations, 10201788ea6eSJeff Layton .file_ops = &nfs_file_operations, 1021f30cb757SBenjamin Coddington .nlmclnt_ops = &nlmclnt_fl_close_lock_ops, 10221da177e4SLinus Torvalds .getroot = nfs3_proc_get_root, 1023281cad46SBryan Schumaker .submount = nfs_submount, 1024f2aedb71SDavid Howells .try_get_tree = nfs_try_get_tree, 10251da177e4SLinus Torvalds .getattr = nfs3_proc_getattr, 10261da177e4SLinus Torvalds .setattr = nfs3_proc_setattr, 10271da177e4SLinus Torvalds .lookup = nfs3_proc_lookup, 10283c5e9a59STrond Myklebust .lookupp = nfs3_proc_lookupp, 10291da177e4SLinus Torvalds .access = nfs3_proc_access, 10301da177e4SLinus Torvalds .readlink = nfs3_proc_readlink, 10311da177e4SLinus Torvalds .create = nfs3_proc_create, 10321da177e4SLinus Torvalds .remove = nfs3_proc_remove, 10331da177e4SLinus Torvalds .unlink_setup = nfs3_proc_unlink_setup, 103434e137ccSBryan Schumaker .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare, 10351da177e4SLinus Torvalds .unlink_done = nfs3_proc_unlink_done, 1036d3d4152aSJeff Layton .rename_setup = nfs3_proc_rename_setup, 1037c6bfa1a1SBryan Schumaker .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare, 1038d3d4152aSJeff Layton .rename_done = nfs3_proc_rename_done, 10391da177e4SLinus Torvalds .link = nfs3_proc_link, 10401da177e4SLinus Torvalds .symlink = nfs3_proc_symlink, 10411da177e4SLinus Torvalds .mkdir = nfs3_proc_mkdir, 10421da177e4SLinus Torvalds .rmdir = nfs3_proc_rmdir, 10431da177e4SLinus Torvalds .readdir = nfs3_proc_readdir, 10441da177e4SLinus Torvalds .mknod = nfs3_proc_mknod, 10451da177e4SLinus Torvalds .statfs = nfs3_proc_statfs, 10461da177e4SLinus Torvalds .fsinfo = nfs3_proc_fsinfo, 10471da177e4SLinus Torvalds .pathconf = nfs3_proc_pathconf, 10481da177e4SLinus Torvalds .decode_dirent = nfs3_decode_dirent, 1049a4cdda59SAnna Schumaker .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare, 10501da177e4SLinus Torvalds .read_setup = nfs3_proc_read_setup, 1051ec06c096STrond Myklebust .read_done = nfs3_read_done, 10521da177e4SLinus Torvalds .write_setup = nfs3_proc_write_setup, 1053788e7a89STrond Myklebust .write_done = nfs3_write_done, 10541da177e4SLinus Torvalds .commit_setup = nfs3_proc_commit_setup, 10550b7c0153SFred Isaman .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare, 1056788e7a89STrond Myklebust .commit_done = nfs3_commit_done, 10571da177e4SLinus Torvalds .lock = nfs3_proc_lock, 1058013cdf10SChristoph Hellwig .clear_acl_cache = forget_all_cached_acls, 10597fe5c398STrond Myklebust .close_context = nfs_close_context, 1060011e2a7fSBryan Schumaker .have_delegation = nfs3_have_delegation, 10616663ee7fSBryan Schumaker .alloc_client = nfs_alloc_client, 106245a52a02SAndy Adamson .init_client = nfs_init_client, 1063cdb7ecedSBryan Schumaker .free_client = nfs_free_client, 10641179acc6SBryan Schumaker .create_server = nfs3_create_server, 10651179acc6SBryan Schumaker .clone_server = nfs3_clone_server, 10661da177e4SLinus Torvalds }; 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