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; 52b68d69b8SJeff Layton if (task->tk_status == -EJUKEBOX) 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, 1041775fd3eSDavid Quigley struct nfs_fattr *fattr, struct nfs4_label *label) 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; 1121da177e4SLinus Torvalds 1131da177e4SLinus Torvalds dprintk("NFS call getattr\n"); 1140e574af1STrond Myklebust nfs_fattr_init(fattr); 115dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 1161da177e4SLinus Torvalds dprintk("NFS reply getattr: %d\n", status); 1171da177e4SLinus Torvalds return status; 1181da177e4SLinus Torvalds } 1191da177e4SLinus Torvalds 1201da177e4SLinus Torvalds static int 1211da177e4SLinus Torvalds nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, 1221da177e4SLinus Torvalds struct iattr *sattr) 1231da177e4SLinus Torvalds { 1242b0143b5SDavid Howells struct inode *inode = d_inode(dentry); 1251da177e4SLinus Torvalds struct nfs3_sattrargs arg = { 1261da177e4SLinus Torvalds .fh = NFS_FH(inode), 1271da177e4SLinus Torvalds .sattr = sattr, 1281da177e4SLinus Torvalds }; 129dead28daSChuck Lever struct rpc_message msg = { 130dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], 131dead28daSChuck Lever .rpc_argp = &arg, 132dead28daSChuck Lever .rpc_resp = fattr, 133dead28daSChuck Lever }; 1341da177e4SLinus Torvalds int status; 1351da177e4SLinus Torvalds 1361da177e4SLinus Torvalds dprintk("NFS call setattr\n"); 137659bfcd6STrond Myklebust if (sattr->ia_valid & ATTR_FILE) 138659bfcd6STrond Myklebust msg.rpc_cred = nfs_file_cred(sattr->ia_file); 1390e574af1STrond Myklebust nfs_fattr_init(fattr); 140dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 14165e4308dSTrond Myklebust if (status == 0) 142f044636dSTrond Myklebust nfs_setattr_update_inode(inode, sattr, fattr); 1431da177e4SLinus Torvalds dprintk("NFS reply setattr: %d\n", status); 1441da177e4SLinus Torvalds return status; 1451da177e4SLinus Torvalds } 1461da177e4SLinus Torvalds 1471da177e4SLinus Torvalds static int 148beffb8feSAl Viro nfs3_proc_lookup(struct inode *dir, const struct qstr *name, 1491775fd3eSDavid Quigley struct nfs_fh *fhandle, struct nfs_fattr *fattr, 1501775fd3eSDavid Quigley struct nfs4_label *label) 1511da177e4SLinus Torvalds { 1521da177e4SLinus Torvalds struct nfs3_diropargs arg = { 1531da177e4SLinus Torvalds .fh = NFS_FH(dir), 1541da177e4SLinus Torvalds .name = name->name, 1551da177e4SLinus Torvalds .len = name->len 1561da177e4SLinus Torvalds }; 1571da177e4SLinus Torvalds struct nfs3_diropres res = { 1581da177e4SLinus Torvalds .fh = fhandle, 1591da177e4SLinus Torvalds .fattr = fattr 1601da177e4SLinus Torvalds }; 161dead28daSChuck Lever struct rpc_message msg = { 162dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], 163dead28daSChuck Lever .rpc_argp = &arg, 164dead28daSChuck Lever .rpc_resp = &res, 165dead28daSChuck Lever }; 1661da177e4SLinus Torvalds int status; 1671da177e4SLinus Torvalds 1681da177e4SLinus Torvalds dprintk("NFS call lookup %s\n", name->name); 169e1fb4d05STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 170e1fb4d05STrond Myklebust if (res.dir_attr == NULL) 171e1fb4d05STrond Myklebust return -ENOMEM; 172e1fb4d05STrond Myklebust 1730e574af1STrond Myklebust nfs_fattr_init(fattr); 174dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 175e1fb4d05STrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 176dead28daSChuck Lever if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { 177dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 178dead28daSChuck Lever msg.rpc_argp = fhandle; 179dead28daSChuck Lever msg.rpc_resp = fattr; 180dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 181dead28daSChuck Lever } 182e1fb4d05STrond Myklebust nfs_free_fattr(res.dir_attr); 1831da177e4SLinus Torvalds dprintk("NFS reply lookup: %d\n", status); 1841da177e4SLinus Torvalds return status; 1851da177e4SLinus Torvalds } 1861da177e4SLinus Torvalds 1871da177e4SLinus Torvalds static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) 1881da177e4SLinus Torvalds { 1891da177e4SLinus Torvalds struct nfs3_accessargs arg = { 1901da177e4SLinus Torvalds .fh = NFS_FH(inode), 1911750d929SAnna Schumaker .access = entry->mask, 1921da177e4SLinus Torvalds }; 193c407d41aSTrond Myklebust struct nfs3_accessres res; 1941da177e4SLinus Torvalds struct rpc_message msg = { 1951da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], 1961da177e4SLinus Torvalds .rpc_argp = &arg, 1971da177e4SLinus Torvalds .rpc_resp = &res, 198dead28daSChuck Lever .rpc_cred = entry->cred, 1991da177e4SLinus Torvalds }; 200c407d41aSTrond Myklebust int status = -ENOMEM; 2011da177e4SLinus Torvalds 2021da177e4SLinus Torvalds dprintk("NFS call access\n"); 203c407d41aSTrond Myklebust res.fattr = nfs_alloc_fattr(); 204c407d41aSTrond Myklebust if (res.fattr == NULL) 205c407d41aSTrond Myklebust goto out; 206c407d41aSTrond Myklebust 2071da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 208c407d41aSTrond Myklebust nfs_refresh_inode(inode, res.fattr); 209eda3e208STrond Myklebust if (status == 0) 210eda3e208STrond Myklebust nfs_access_set_mask(entry, res.access); 211c407d41aSTrond Myklebust nfs_free_fattr(res.fattr); 212c407d41aSTrond Myklebust out: 2131da177e4SLinus Torvalds dprintk("NFS reply access: %d\n", status); 2141da177e4SLinus Torvalds return status; 2151da177e4SLinus Torvalds } 2161da177e4SLinus Torvalds 2171da177e4SLinus Torvalds static int nfs3_proc_readlink(struct inode *inode, struct page *page, 2181da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 2191da177e4SLinus Torvalds { 2203b14d654STrond Myklebust struct nfs_fattr *fattr; 2211da177e4SLinus Torvalds struct nfs3_readlinkargs args = { 2221da177e4SLinus Torvalds .fh = NFS_FH(inode), 2231da177e4SLinus Torvalds .pgbase = pgbase, 2241da177e4SLinus Torvalds .pglen = pglen, 2251da177e4SLinus Torvalds .pages = &page 2261da177e4SLinus Torvalds }; 227dead28daSChuck Lever struct rpc_message msg = { 228dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], 229dead28daSChuck Lever .rpc_argp = &args, 230dead28daSChuck Lever }; 2313b14d654STrond Myklebust int status = -ENOMEM; 2321da177e4SLinus Torvalds 2331da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 2343b14d654STrond Myklebust fattr = nfs_alloc_fattr(); 2353b14d654STrond Myklebust if (fattr == NULL) 2363b14d654STrond Myklebust goto out; 2373b14d654STrond Myklebust msg.rpc_resp = fattr; 2383b14d654STrond Myklebust 239dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2403b14d654STrond Myklebust nfs_refresh_inode(inode, fattr); 2413b14d654STrond Myklebust nfs_free_fattr(fattr); 2423b14d654STrond Myklebust out: 2431da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 2441da177e4SLinus Torvalds return status; 2451da177e4SLinus Torvalds } 2461da177e4SLinus Torvalds 2470b4aae7aSTrond Myklebust struct nfs3_createdata { 2480b4aae7aSTrond Myklebust struct rpc_message msg; 2490b4aae7aSTrond Myklebust union { 2500b4aae7aSTrond Myklebust struct nfs3_createargs create; 2510b4aae7aSTrond Myklebust struct nfs3_mkdirargs mkdir; 2520b4aae7aSTrond Myklebust struct nfs3_symlinkargs symlink; 2530b4aae7aSTrond Myklebust struct nfs3_mknodargs mknod; 2540b4aae7aSTrond Myklebust } arg; 2550b4aae7aSTrond Myklebust struct nfs3_diropres res; 2560b4aae7aSTrond Myklebust struct nfs_fh fh; 2570b4aae7aSTrond Myklebust struct nfs_fattr fattr; 2580b4aae7aSTrond Myklebust struct nfs_fattr dir_attr; 2590b4aae7aSTrond Myklebust }; 2600b4aae7aSTrond Myklebust 2610b4aae7aSTrond Myklebust static struct nfs3_createdata *nfs3_alloc_createdata(void) 2620b4aae7aSTrond Myklebust { 2630b4aae7aSTrond Myklebust struct nfs3_createdata *data; 2640b4aae7aSTrond Myklebust 2650b4aae7aSTrond Myklebust data = kzalloc(sizeof(*data), GFP_KERNEL); 2660b4aae7aSTrond Myklebust if (data != NULL) { 2670b4aae7aSTrond Myklebust data->msg.rpc_argp = &data->arg; 2680b4aae7aSTrond Myklebust data->msg.rpc_resp = &data->res; 2690b4aae7aSTrond Myklebust data->res.fh = &data->fh; 2700b4aae7aSTrond Myklebust data->res.fattr = &data->fattr; 2710b4aae7aSTrond Myklebust data->res.dir_attr = &data->dir_attr; 2720b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 2730b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 2740b4aae7aSTrond Myklebust } 2750b4aae7aSTrond Myklebust return data; 2760b4aae7aSTrond Myklebust } 2770b4aae7aSTrond Myklebust 2780b4aae7aSTrond Myklebust static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) 2790b4aae7aSTrond Myklebust { 2800b4aae7aSTrond Myklebust int status; 2810b4aae7aSTrond Myklebust 2820b4aae7aSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); 2830b4aae7aSTrond Myklebust nfs_post_op_update_inode(dir, data->res.dir_attr); 2840b4aae7aSTrond Myklebust if (status == 0) 2851775fd3eSDavid Quigley status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL); 2860b4aae7aSTrond Myklebust return status; 2870b4aae7aSTrond Myklebust } 2880b4aae7aSTrond Myklebust 2890b4aae7aSTrond Myklebust static void nfs3_free_createdata(struct nfs3_createdata *data) 2900b4aae7aSTrond Myklebust { 2910b4aae7aSTrond Myklebust kfree(data); 2920b4aae7aSTrond Myklebust } 2930b4aae7aSTrond Myklebust 2941da177e4SLinus Torvalds /* 2951da177e4SLinus Torvalds * Create a regular file. 2961da177e4SLinus Torvalds */ 2971da177e4SLinus Torvalds static int 2981da177e4SLinus Torvalds nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 2998867fe58SMiklos Szeredi int flags) 3001da177e4SLinus Torvalds { 301013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 3020b4aae7aSTrond Myklebust struct nfs3_createdata *data; 3030b4aae7aSTrond Myklebust int status = -ENOMEM; 3041da177e4SLinus Torvalds 3056de1472fSAl Viro dprintk("NFS call create %pd\n", dentry); 3060b4aae7aSTrond Myklebust 3070b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 3080b4aae7aSTrond Myklebust if (data == NULL) 3090b4aae7aSTrond Myklebust goto out; 3100b4aae7aSTrond Myklebust 3110b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; 3120b4aae7aSTrond Myklebust data->arg.create.fh = NFS_FH(dir); 3130b4aae7aSTrond Myklebust data->arg.create.name = dentry->d_name.name; 3140b4aae7aSTrond Myklebust data->arg.create.len = dentry->d_name.len; 3150b4aae7aSTrond Myklebust data->arg.create.sattr = sattr; 3160b4aae7aSTrond Myklebust 3170b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3181da177e4SLinus Torvalds if (flags & O_EXCL) { 3190b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; 320a9943d11STrond Myklebust data->arg.create.verifier[0] = cpu_to_be32(jiffies); 321a9943d11STrond Myklebust data->arg.create.verifier[1] = cpu_to_be32(current->pid); 3221da177e4SLinus Torvalds } 3231da177e4SLinus Torvalds 324013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 325013cdf10SChristoph Hellwig if (status) 326013cdf10SChristoph Hellwig goto out; 327055ffbeaSAndreas Gruenbacher 3280b4aae7aSTrond Myklebust for (;;) { 3290b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 3301da177e4SLinus Torvalds 3310b4aae7aSTrond Myklebust if (status != -ENOTSUPP) 3320b4aae7aSTrond Myklebust break; 3330b4aae7aSTrond Myklebust /* If the server doesn't support the exclusive creation 3340b4aae7aSTrond Myklebust * semantics, try again with simple 'guarded' mode. */ 3350b4aae7aSTrond Myklebust switch (data->arg.create.createmode) { 3361da177e4SLinus Torvalds case NFS3_CREATE_EXCLUSIVE: 3370b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_GUARDED; 3381da177e4SLinus Torvalds break; 3391da177e4SLinus Torvalds 3401da177e4SLinus Torvalds case NFS3_CREATE_GUARDED: 3410b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3421da177e4SLinus Torvalds break; 3431da177e4SLinus Torvalds 3441da177e4SLinus Torvalds case NFS3_CREATE_UNCHECKED: 3451da177e4SLinus Torvalds goto out; 3461da177e4SLinus Torvalds } 3470b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 3480b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 3491da177e4SLinus Torvalds } 3501da177e4SLinus Torvalds 3511da177e4SLinus Torvalds if (status != 0) 352013cdf10SChristoph Hellwig goto out_release_acls; 3531da177e4SLinus Torvalds 3541da177e4SLinus Torvalds /* When we created the file with exclusive semantics, make 3551da177e4SLinus Torvalds * sure we set the attributes afterwards. */ 3560b4aae7aSTrond Myklebust if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { 3571da177e4SLinus Torvalds dprintk("NFS call setattr (post-create)\n"); 3581da177e4SLinus Torvalds 3591da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_ATIME_SET)) 3601da177e4SLinus Torvalds sattr->ia_valid |= ATTR_ATIME; 3611da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_MTIME_SET)) 3621da177e4SLinus Torvalds sattr->ia_valid |= ATTR_MTIME; 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds /* Note: we could use a guarded setattr here, but I'm 3651da177e4SLinus Torvalds * not sure this buys us anything (and I'd have 3661da177e4SLinus Torvalds * to revamp the NFSv3 XDR code) */ 3670b4aae7aSTrond Myklebust status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); 3682b0143b5SDavid Howells nfs_post_op_update_inode(d_inode(dentry), data->res.fattr); 3691da177e4SLinus Torvalds dprintk("NFS reply setattr (post-create): %d\n", status); 370055ffbeaSAndreas Gruenbacher if (status != 0) 371013cdf10SChristoph Hellwig goto out_release_acls; 3720b4aae7aSTrond Myklebust } 373013cdf10SChristoph Hellwig 3742b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 375013cdf10SChristoph Hellwig 376013cdf10SChristoph Hellwig out_release_acls: 377013cdf10SChristoph Hellwig posix_acl_release(acl); 378013cdf10SChristoph Hellwig posix_acl_release(default_acl); 3791da177e4SLinus Torvalds out: 3800b4aae7aSTrond Myklebust nfs3_free_createdata(data); 3811da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 3821da177e4SLinus Torvalds return status; 3831da177e4SLinus Torvalds } 3841da177e4SLinus Torvalds 3851da177e4SLinus Torvalds static int 386912678dbSTrond Myklebust nfs3_proc_remove(struct inode *dir, struct dentry *dentry) 3871da177e4SLinus Torvalds { 3884fdc17b2STrond Myklebust struct nfs_removeargs arg = { 3891da177e4SLinus Torvalds .fh = NFS_FH(dir), 390912678dbSTrond Myklebust .name = dentry->d_name, 3911da177e4SLinus Torvalds }; 3924fdc17b2STrond Myklebust struct nfs_removeres res; 3931da177e4SLinus Torvalds struct rpc_message msg = { 3941da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], 3951da177e4SLinus Torvalds .rpc_argp = &arg, 3964fdc17b2STrond Myklebust .rpc_resp = &res, 3971da177e4SLinus Torvalds }; 398d346890bSTrond Myklebust int status = -ENOMEM; 3991da177e4SLinus Torvalds 400912678dbSTrond Myklebust dprintk("NFS call remove %pd2\n", dentry); 401d346890bSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 402d346890bSTrond Myklebust if (res.dir_attr == NULL) 403d346890bSTrond Myklebust goto out; 404d346890bSTrond Myklebust 4051da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 406d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 407d346890bSTrond Myklebust nfs_free_fattr(res.dir_attr); 408d346890bSTrond Myklebust out: 4091da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 4101da177e4SLinus Torvalds return status; 4111da177e4SLinus Torvalds } 4121da177e4SLinus Torvalds 413e4eff1a6STrond Myklebust static void 414e4eff1a6STrond Myklebust nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) 4151da177e4SLinus Torvalds { 4161da177e4SLinus Torvalds msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; 4171da177e4SLinus Torvalds } 4181da177e4SLinus Torvalds 41934e137ccSBryan Schumaker static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data) 42034e137ccSBryan Schumaker { 42134e137ccSBryan Schumaker rpc_call_start(task); 42234e137ccSBryan Schumaker } 42334e137ccSBryan Schumaker 4241da177e4SLinus Torvalds static int 425e4eff1a6STrond Myklebust nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) 4261da177e4SLinus Torvalds { 427e4eff1a6STrond Myklebust struct nfs_removeres *res; 428e4eff1a6STrond Myklebust if (nfs3_async_handle_jukebox(task, dir)) 4291da177e4SLinus Torvalds return 0; 430e4eff1a6STrond Myklebust res = task->tk_msg.rpc_resp; 431d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res->dir_attr); 432e4eff1a6STrond Myklebust return 1; 4331da177e4SLinus Torvalds } 4341da177e4SLinus Torvalds 435d3d4152aSJeff Layton static void 436d3d4152aSJeff Layton nfs3_proc_rename_setup(struct rpc_message *msg, struct inode *dir) 437d3d4152aSJeff Layton { 438d3d4152aSJeff Layton msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME]; 439d3d4152aSJeff Layton } 440d3d4152aSJeff Layton 441c6bfa1a1SBryan Schumaker static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data) 442c6bfa1a1SBryan Schumaker { 443c6bfa1a1SBryan Schumaker rpc_call_start(task); 444c6bfa1a1SBryan Schumaker } 445c6bfa1a1SBryan Schumaker 446d3d4152aSJeff Layton static int 447d3d4152aSJeff Layton nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir, 448d3d4152aSJeff Layton struct inode *new_dir) 449d3d4152aSJeff Layton { 450d3d4152aSJeff Layton struct nfs_renameres *res; 451d3d4152aSJeff Layton 452d3d4152aSJeff Layton if (nfs3_async_handle_jukebox(task, old_dir)) 453d3d4152aSJeff Layton return 0; 454d3d4152aSJeff Layton res = task->tk_msg.rpc_resp; 455d3d4152aSJeff Layton 456d3d4152aSJeff Layton nfs_post_op_update_inode(old_dir, res->old_fattr); 457d3d4152aSJeff Layton nfs_post_op_update_inode(new_dir, res->new_fattr); 458d3d4152aSJeff Layton return 1; 459d3d4152aSJeff Layton } 460d3d4152aSJeff Layton 4611da177e4SLinus Torvalds static int 462beffb8feSAl Viro nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name) 4631da177e4SLinus Torvalds { 4641da177e4SLinus Torvalds struct nfs3_linkargs arg = { 4651da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 4661da177e4SLinus Torvalds .tofh = NFS_FH(dir), 4671da177e4SLinus Torvalds .toname = name->name, 4681da177e4SLinus Torvalds .tolen = name->len 4691da177e4SLinus Torvalds }; 470136f2627STrond Myklebust struct nfs3_linkres res; 471dead28daSChuck Lever struct rpc_message msg = { 472dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], 473dead28daSChuck Lever .rpc_argp = &arg, 474dead28daSChuck Lever .rpc_resp = &res, 475dead28daSChuck Lever }; 476136f2627STrond Myklebust int status = -ENOMEM; 4771da177e4SLinus Torvalds 4781da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 479136f2627STrond Myklebust res.fattr = nfs_alloc_fattr(); 480136f2627STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 481136f2627STrond Myklebust if (res.fattr == NULL || res.dir_attr == NULL) 482136f2627STrond Myklebust goto out; 483136f2627STrond Myklebust 484dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 485136f2627STrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 486136f2627STrond Myklebust nfs_post_op_update_inode(inode, res.fattr); 487136f2627STrond Myklebust out: 488136f2627STrond Myklebust nfs_free_fattr(res.dir_attr); 489136f2627STrond Myklebust nfs_free_fattr(res.fattr); 4901da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 4911da177e4SLinus Torvalds return status; 4921da177e4SLinus Torvalds } 4931da177e4SLinus Torvalds 4941da177e4SLinus Torvalds static int 49594a6d753SChuck Lever nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, 49694a6d753SChuck Lever unsigned int len, struct iattr *sattr) 4971da177e4SLinus Torvalds { 4980b4aae7aSTrond Myklebust struct nfs3_createdata *data; 4990b4aae7aSTrond Myklebust int status = -ENOMEM; 5001da177e4SLinus Torvalds 50194a6d753SChuck Lever if (len > NFS3_MAXPATHLEN) 5021da177e4SLinus Torvalds return -ENAMETOOLONG; 5034f390c15SChuck Lever 5046de1472fSAl Viro dprintk("NFS call symlink %pd\n", dentry); 50594a6d753SChuck Lever 5060b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5070b4aae7aSTrond Myklebust if (data == NULL) 5084f390c15SChuck Lever goto out; 5090b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; 5100b4aae7aSTrond Myklebust data->arg.symlink.fromfh = NFS_FH(dir); 5110b4aae7aSTrond Myklebust data->arg.symlink.fromname = dentry->d_name.name; 5120b4aae7aSTrond Myklebust data->arg.symlink.fromlen = dentry->d_name.len; 5130b4aae7aSTrond Myklebust data->arg.symlink.pages = &page; 5140b4aae7aSTrond Myklebust data->arg.symlink.pathlen = len; 5150b4aae7aSTrond Myklebust data->arg.symlink.sattr = sattr; 5160b4aae7aSTrond Myklebust 5170b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 5180b4aae7aSTrond Myklebust 5190b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5204f390c15SChuck Lever out: 5211da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 5221da177e4SLinus Torvalds return status; 5231da177e4SLinus Torvalds } 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds static int 5261da177e4SLinus Torvalds nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 5271da177e4SLinus Torvalds { 528013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 5290b4aae7aSTrond Myklebust struct nfs3_createdata *data; 5300b4aae7aSTrond Myklebust int status = -ENOMEM; 5311da177e4SLinus Torvalds 5326de1472fSAl Viro dprintk("NFS call mkdir %pd\n", dentry); 533055ffbeaSAndreas Gruenbacher 5340b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5350b4aae7aSTrond Myklebust if (data == NULL) 5360b4aae7aSTrond Myklebust goto out; 5370b4aae7aSTrond Myklebust 538013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 539013cdf10SChristoph Hellwig if (status) 540013cdf10SChristoph Hellwig goto out; 541013cdf10SChristoph Hellwig 5420b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; 5430b4aae7aSTrond Myklebust data->arg.mkdir.fh = NFS_FH(dir); 5440b4aae7aSTrond Myklebust data->arg.mkdir.name = dentry->d_name.name; 5450b4aae7aSTrond Myklebust data->arg.mkdir.len = dentry->d_name.len; 5460b4aae7aSTrond Myklebust data->arg.mkdir.sattr = sattr; 5470b4aae7aSTrond Myklebust 5480b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 549055ffbeaSAndreas Gruenbacher if (status != 0) 550013cdf10SChristoph Hellwig goto out_release_acls; 5510b4aae7aSTrond Myklebust 5522b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 553013cdf10SChristoph Hellwig 554013cdf10SChristoph Hellwig out_release_acls: 555013cdf10SChristoph Hellwig posix_acl_release(acl); 556013cdf10SChristoph Hellwig posix_acl_release(default_acl); 557055ffbeaSAndreas Gruenbacher out: 5580b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5591da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 5601da177e4SLinus Torvalds return status; 5611da177e4SLinus Torvalds } 5621da177e4SLinus Torvalds 5631da177e4SLinus Torvalds static int 564beffb8feSAl Viro nfs3_proc_rmdir(struct inode *dir, const struct qstr *name) 5651da177e4SLinus Torvalds { 56639967ddfSTrond Myklebust struct nfs_fattr *dir_attr; 5671da177e4SLinus Torvalds struct nfs3_diropargs arg = { 5681da177e4SLinus Torvalds .fh = NFS_FH(dir), 5691da177e4SLinus Torvalds .name = name->name, 5701da177e4SLinus Torvalds .len = name->len 5711da177e4SLinus Torvalds }; 572dead28daSChuck Lever struct rpc_message msg = { 573dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], 574dead28daSChuck Lever .rpc_argp = &arg, 575dead28daSChuck Lever }; 57639967ddfSTrond Myklebust int status = -ENOMEM; 5771da177e4SLinus Torvalds 5781da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 57939967ddfSTrond Myklebust dir_attr = nfs_alloc_fattr(); 58039967ddfSTrond Myklebust if (dir_attr == NULL) 58139967ddfSTrond Myklebust goto out; 58239967ddfSTrond Myklebust 58339967ddfSTrond Myklebust msg.rpc_resp = dir_attr; 584dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 58539967ddfSTrond Myklebust nfs_post_op_update_inode(dir, dir_attr); 58639967ddfSTrond Myklebust nfs_free_fattr(dir_attr); 58739967ddfSTrond Myklebust out: 5881da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 5891da177e4SLinus Torvalds return status; 5901da177e4SLinus Torvalds } 5911da177e4SLinus Torvalds 5921da177e4SLinus Torvalds /* 5931da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass the user buffer 5941da177e4SLinus Torvalds * to the encode function, which installs it in the receive iovec. 5951da177e4SLinus Torvalds * The decode function itself doesn't perform any decoding, it just makes 5961da177e4SLinus Torvalds * sure the reply is syntactically correct. 5971da177e4SLinus Torvalds * 5981da177e4SLinus Torvalds * Also note that this implementation handles both plain readdir and 5991da177e4SLinus Torvalds * readdirplus. 6001da177e4SLinus Torvalds */ 6011da177e4SLinus Torvalds static int 6021da177e4SLinus Torvalds nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, 603a7a3b1e9SBenjamin Coddington u64 cookie, struct page **pages, unsigned int count, bool plus) 6041da177e4SLinus Torvalds { 6052b0143b5SDavid Howells struct inode *dir = d_inode(dentry); 606c3f52af3STrond Myklebust __be32 *verf = NFS_I(dir)->cookieverf; 6071da177e4SLinus Torvalds struct nfs3_readdirargs arg = { 6081da177e4SLinus Torvalds .fh = NFS_FH(dir), 6091da177e4SLinus Torvalds .cookie = cookie, 6101da177e4SLinus Torvalds .verf = {verf[0], verf[1]}, 6111da177e4SLinus Torvalds .plus = plus, 6121da177e4SLinus Torvalds .count = count, 61356e4ebf8SBryan Schumaker .pages = pages 6141da177e4SLinus Torvalds }; 6151da177e4SLinus Torvalds struct nfs3_readdirres res = { 6161da177e4SLinus Torvalds .verf = verf, 6171da177e4SLinus Torvalds .plus = plus 6181da177e4SLinus Torvalds }; 6191da177e4SLinus Torvalds struct rpc_message msg = { 6201da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], 6211da177e4SLinus Torvalds .rpc_argp = &arg, 6221da177e4SLinus Torvalds .rpc_resp = &res, 6231da177e4SLinus Torvalds .rpc_cred = cred 6241da177e4SLinus Torvalds }; 625aa49b4cfSTrond Myklebust int status = -ENOMEM; 6261da177e4SLinus Torvalds 6271da177e4SLinus Torvalds if (plus) 6281da177e4SLinus Torvalds msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; 6291da177e4SLinus Torvalds 6301da177e4SLinus Torvalds dprintk("NFS call readdir%s %d\n", 6311da177e4SLinus Torvalds plus? "plus" : "", (unsigned int) cookie); 6321da177e4SLinus Torvalds 633aa49b4cfSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 634aa49b4cfSTrond Myklebust if (res.dir_attr == NULL) 635aa49b4cfSTrond Myklebust goto out; 636aa49b4cfSTrond Myklebust 6371da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 638c4812998STrond Myklebust 639c4812998STrond Myklebust nfs_invalidate_atime(dir); 640aa49b4cfSTrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 641c4812998STrond Myklebust 642aa49b4cfSTrond Myklebust nfs_free_fattr(res.dir_attr); 643aa49b4cfSTrond Myklebust out: 644d141d974SChuck Lever dprintk("NFS reply readdir%s: %d\n", 645d141d974SChuck Lever plus? "plus" : "", status); 6461da177e4SLinus Torvalds return status; 6471da177e4SLinus Torvalds } 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds static int 6501da177e4SLinus Torvalds nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 6511da177e4SLinus Torvalds dev_t rdev) 6521da177e4SLinus Torvalds { 653013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 6540b4aae7aSTrond Myklebust struct nfs3_createdata *data; 6550b4aae7aSTrond Myklebust int status = -ENOMEM; 6561da177e4SLinus Torvalds 6576de1472fSAl Viro dprintk("NFS call mknod %pd %u:%u\n", dentry, 6581da177e4SLinus Torvalds MAJOR(rdev), MINOR(rdev)); 659055ffbeaSAndreas Gruenbacher 6600b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 6610b4aae7aSTrond Myklebust if (data == NULL) 662055ffbeaSAndreas Gruenbacher goto out; 6630b4aae7aSTrond Myklebust 664013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 665013cdf10SChristoph Hellwig if (status) 666013cdf10SChristoph Hellwig goto out; 667013cdf10SChristoph Hellwig 6680b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; 6690b4aae7aSTrond Myklebust data->arg.mknod.fh = NFS_FH(dir); 6700b4aae7aSTrond Myklebust data->arg.mknod.name = dentry->d_name.name; 6710b4aae7aSTrond Myklebust data->arg.mknod.len = dentry->d_name.len; 6720b4aae7aSTrond Myklebust data->arg.mknod.sattr = sattr; 6730b4aae7aSTrond Myklebust data->arg.mknod.rdev = rdev; 6740b4aae7aSTrond Myklebust 6750b4aae7aSTrond Myklebust switch (sattr->ia_mode & S_IFMT) { 6760b4aae7aSTrond Myklebust case S_IFBLK: 6770b4aae7aSTrond Myklebust data->arg.mknod.type = NF3BLK; 6780b4aae7aSTrond Myklebust break; 6790b4aae7aSTrond Myklebust case S_IFCHR: 6800b4aae7aSTrond Myklebust data->arg.mknod.type = NF3CHR; 6810b4aae7aSTrond Myklebust break; 6820b4aae7aSTrond Myklebust case S_IFIFO: 6830b4aae7aSTrond Myklebust data->arg.mknod.type = NF3FIFO; 6840b4aae7aSTrond Myklebust break; 6850b4aae7aSTrond Myklebust case S_IFSOCK: 6860b4aae7aSTrond Myklebust data->arg.mknod.type = NF3SOCK; 6870b4aae7aSTrond Myklebust break; 6880b4aae7aSTrond Myklebust default: 6890b4aae7aSTrond Myklebust status = -EINVAL; 6900b4aae7aSTrond Myklebust goto out; 6910b4aae7aSTrond Myklebust } 6920b4aae7aSTrond Myklebust 6930b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 694055ffbeaSAndreas Gruenbacher if (status != 0) 695013cdf10SChristoph Hellwig goto out_release_acls; 696013cdf10SChristoph Hellwig 6972b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 698013cdf10SChristoph Hellwig 699013cdf10SChristoph Hellwig out_release_acls: 700013cdf10SChristoph Hellwig posix_acl_release(acl); 701013cdf10SChristoph Hellwig posix_acl_release(default_acl); 702055ffbeaSAndreas Gruenbacher out: 7030b4aae7aSTrond Myklebust nfs3_free_createdata(data); 7041da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 7051da177e4SLinus Torvalds return status; 7061da177e4SLinus Torvalds } 7071da177e4SLinus Torvalds 7081da177e4SLinus Torvalds static int 7091da177e4SLinus Torvalds nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 7101da177e4SLinus Torvalds struct nfs_fsstat *stat) 7111da177e4SLinus Torvalds { 712dead28daSChuck Lever struct rpc_message msg = { 713dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], 714dead28daSChuck Lever .rpc_argp = fhandle, 715dead28daSChuck Lever .rpc_resp = stat, 716dead28daSChuck Lever }; 7171da177e4SLinus Torvalds int status; 7181da177e4SLinus Torvalds 7191da177e4SLinus Torvalds dprintk("NFS call fsstat\n"); 7200e574af1STrond Myklebust nfs_fattr_init(stat->fattr); 721dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 722d141d974SChuck Lever dprintk("NFS reply fsstat: %d\n", status); 7231da177e4SLinus Torvalds return status; 7241da177e4SLinus Torvalds } 7251da177e4SLinus Torvalds 7261da177e4SLinus Torvalds static int 72737ca8f5cSEG Keizer do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle, 7281da177e4SLinus Torvalds struct nfs_fsinfo *info) 7291da177e4SLinus Torvalds { 730dead28daSChuck Lever struct rpc_message msg = { 731dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 732dead28daSChuck Lever .rpc_argp = fhandle, 733dead28daSChuck Lever .rpc_resp = info, 734dead28daSChuck Lever }; 7351da177e4SLinus Torvalds int status; 7361da177e4SLinus Torvalds 7371da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 7380e574af1STrond Myklebust nfs_fattr_init(info->fattr); 73937ca8f5cSEG Keizer status = rpc_call_sync(client, &msg, 0); 7401da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 7411da177e4SLinus Torvalds return status; 7421da177e4SLinus Torvalds } 7431da177e4SLinus Torvalds 74437ca8f5cSEG Keizer /* 74537ca8f5cSEG Keizer * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via 74637ca8f5cSEG Keizer * nfs_create_server 74737ca8f5cSEG Keizer */ 74837ca8f5cSEG Keizer static int 74937ca8f5cSEG Keizer nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 75037ca8f5cSEG Keizer struct nfs_fsinfo *info) 75137ca8f5cSEG Keizer { 75237ca8f5cSEG Keizer int status; 75337ca8f5cSEG Keizer 75437ca8f5cSEG Keizer status = do_proc_fsinfo(server->client, fhandle, info); 75537ca8f5cSEG Keizer if (status && server->nfs_client->cl_rpcclient != server->client) 75637ca8f5cSEG Keizer status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); 75737ca8f5cSEG Keizer return status; 75837ca8f5cSEG Keizer } 75937ca8f5cSEG Keizer 7601da177e4SLinus Torvalds static int 7611da177e4SLinus Torvalds nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 7621da177e4SLinus Torvalds struct nfs_pathconf *info) 7631da177e4SLinus Torvalds { 764dead28daSChuck Lever struct rpc_message msg = { 765dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], 766dead28daSChuck Lever .rpc_argp = fhandle, 767dead28daSChuck Lever .rpc_resp = info, 768dead28daSChuck Lever }; 7691da177e4SLinus Torvalds int status; 7701da177e4SLinus Torvalds 7711da177e4SLinus Torvalds dprintk("NFS call pathconf\n"); 7720e574af1STrond Myklebust nfs_fattr_init(info->fattr); 773dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 7741da177e4SLinus Torvalds dprintk("NFS reply pathconf: %d\n", status); 7751da177e4SLinus Torvalds return status; 7761da177e4SLinus Torvalds } 7771da177e4SLinus Torvalds 778d45f60c6SWeston Andros Adamson static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 7791da177e4SLinus Torvalds { 780d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 781cd841605SFred Isaman 78216cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 78316cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 78416cecdf6STrond Myklebust 785cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 786ec06c096STrond Myklebust return -EAGAIN; 7878850df99STrond Myklebust 788cd841605SFred Isaman nfs_invalidate_atime(inode); 789d45f60c6SWeston Andros Adamson nfs_refresh_inode(inode, &hdr->fattr); 790ec06c096STrond Myklebust return 0; 7911da177e4SLinus Torvalds } 7921da177e4SLinus Torvalds 793d45f60c6SWeston Andros Adamson static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr, 794d45f60c6SWeston Andros Adamson struct rpc_message *msg) 7951da177e4SLinus Torvalds { 796bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; 7971da177e4SLinus Torvalds } 7981da177e4SLinus Torvalds 799d45f60c6SWeston Andros Adamson static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task, 800d45f60c6SWeston Andros Adamson struct nfs_pgio_header *hdr) 801ea7c3303SBryan Schumaker { 802ea7c3303SBryan Schumaker rpc_call_start(task); 803ef1820f9SNeilBrown return 0; 804ea7c3303SBryan Schumaker } 805ea7c3303SBryan Schumaker 806d45f60c6SWeston Andros Adamson static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 8071da177e4SLinus Torvalds { 808d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 809cd841605SFred Isaman 81016cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 81116cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 81216cecdf6STrond Myklebust 813cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 814788e7a89STrond Myklebust return -EAGAIN; 8151da177e4SLinus Torvalds if (task->tk_status >= 0) 816a08a8cd3STrond Myklebust nfs_writeback_update_inode(hdr); 817788e7a89STrond Myklebust return 0; 8181da177e4SLinus Torvalds } 8191da177e4SLinus Torvalds 820d45f60c6SWeston Andros Adamson static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr, 821d45f60c6SWeston Andros Adamson struct rpc_message *msg) 8221da177e4SLinus Torvalds { 823bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; 8241da177e4SLinus Torvalds } 8251da177e4SLinus Torvalds 8260b7c0153SFred Isaman static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data) 8270b7c0153SFred Isaman { 8280b7c0153SFred Isaman rpc_call_start(task); 8290b7c0153SFred Isaman } 8300b7c0153SFred Isaman 8310b7c0153SFred Isaman static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data) 8321da177e4SLinus Torvalds { 83316cecdf6STrond Myklebust if (data->commit_done_cb != NULL) 83416cecdf6STrond Myklebust return data->commit_done_cb(task, data); 83516cecdf6STrond Myklebust 836006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 837788e7a89STrond Myklebust return -EAGAIN; 8389e08a3c5STrond Myklebust nfs_refresh_inode(data->inode, data->res.fattr); 839788e7a89STrond Myklebust return 0; 8401da177e4SLinus Torvalds } 8411da177e4SLinus Torvalds 8420b7c0153SFred Isaman static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg) 8431da177e4SLinus Torvalds { 844bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; 8451da177e4SLinus Torvalds } 8461da177e4SLinus Torvalds 847bb3393d5STrond Myklebust static void nfs3_nlm_alloc_call(void *data) 848f30cb757SBenjamin Coddington { 849f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 850f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) { 851f30cb757SBenjamin Coddington get_nfs_open_context(l_ctx->open_context); 852f30cb757SBenjamin Coddington nfs_get_lock_context(l_ctx->open_context); 853f30cb757SBenjamin Coddington } 854f30cb757SBenjamin Coddington } 855f30cb757SBenjamin Coddington 856bb3393d5STrond Myklebust static bool nfs3_nlm_unlock_prepare(struct rpc_task *task, void *data) 857f30cb757SBenjamin Coddington { 858f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 859f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) 860f30cb757SBenjamin Coddington return nfs_async_iocounter_wait(task, l_ctx); 861f30cb757SBenjamin Coddington return false; 862f30cb757SBenjamin Coddington 863f30cb757SBenjamin Coddington } 864f30cb757SBenjamin Coddington 865bb3393d5STrond Myklebust static void nfs3_nlm_release_call(void *data) 866f30cb757SBenjamin Coddington { 867f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 868f30cb757SBenjamin Coddington struct nfs_open_context *ctx; 869f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) { 870f30cb757SBenjamin Coddington ctx = l_ctx->open_context; 871f30cb757SBenjamin Coddington nfs_put_lock_context(l_ctx); 872f30cb757SBenjamin Coddington put_nfs_open_context(ctx); 873f30cb757SBenjamin Coddington } 874f30cb757SBenjamin Coddington } 875f30cb757SBenjamin Coddington 8761b720406SColin Ian King static const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = { 877f30cb757SBenjamin Coddington .nlmclnt_alloc_call = nfs3_nlm_alloc_call, 878f30cb757SBenjamin Coddington .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare, 879f30cb757SBenjamin Coddington .nlmclnt_release_call = nfs3_nlm_release_call, 880f30cb757SBenjamin Coddington }; 881f30cb757SBenjamin Coddington 8821da177e4SLinus Torvalds static int 8831da177e4SLinus Torvalds nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) 8841da177e4SLinus Torvalds { 885496ad9aaSAl Viro struct inode *inode = file_inode(filp); 886f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = NULL; 887f30cb757SBenjamin Coddington struct nfs_open_context *ctx = nfs_file_open_context(filp); 888f30cb757SBenjamin Coddington int status; 8891093a60eSChuck Lever 890f30cb757SBenjamin Coddington if (fl->fl_flags & FL_CLOSE) { 891f30cb757SBenjamin Coddington l_ctx = nfs_get_lock_context(ctx); 892f30cb757SBenjamin Coddington if (IS_ERR(l_ctx)) 893f30cb757SBenjamin Coddington l_ctx = NULL; 894f30cb757SBenjamin Coddington else 895f30cb757SBenjamin Coddington set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags); 896f30cb757SBenjamin Coddington } 897f30cb757SBenjamin Coddington 898f30cb757SBenjamin Coddington status = nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, l_ctx); 899f30cb757SBenjamin Coddington 900f30cb757SBenjamin Coddington if (l_ctx) 901f30cb757SBenjamin Coddington nfs_put_lock_context(l_ctx); 902f30cb757SBenjamin Coddington 903f30cb757SBenjamin Coddington return status; 9041da177e4SLinus Torvalds } 9051da177e4SLinus Torvalds 906011e2a7fSBryan Schumaker static int nfs3_have_delegation(struct inode *inode, fmode_t flags) 907011e2a7fSBryan Schumaker { 908011e2a7fSBryan Schumaker return 0; 909011e2a7fSBryan Schumaker } 910011e2a7fSBryan Schumaker 91157ec14c5SBryan Schumaker static int nfs3_return_delegation(struct inode *inode) 91257ec14c5SBryan Schumaker { 91357ec14c5SBryan Schumaker nfs_wb_all(inode); 91457ec14c5SBryan Schumaker return 0; 91557ec14c5SBryan Schumaker } 91657ec14c5SBryan Schumaker 917ab96291eSBryan Schumaker static const struct inode_operations nfs3_dir_inode_operations = { 918ab96291eSBryan Schumaker .create = nfs_create, 919ab96291eSBryan Schumaker .lookup = nfs_lookup, 920ab96291eSBryan Schumaker .link = nfs_link, 921ab96291eSBryan Schumaker .unlink = nfs_unlink, 922ab96291eSBryan Schumaker .symlink = nfs_symlink, 923ab96291eSBryan Schumaker .mkdir = nfs_mkdir, 924ab96291eSBryan Schumaker .rmdir = nfs_rmdir, 925ab96291eSBryan Schumaker .mknod = nfs_mknod, 926ab96291eSBryan Schumaker .rename = nfs_rename, 927ab96291eSBryan Schumaker .permission = nfs_permission, 928ab96291eSBryan Schumaker .getattr = nfs_getattr, 929ab96291eSBryan Schumaker .setattr = nfs_setattr, 9305f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 93174adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 932013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 933013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 934013cdf10SChristoph Hellwig #endif 935ab96291eSBryan Schumaker }; 936ab96291eSBryan Schumaker 937ab96291eSBryan Schumaker static const struct inode_operations nfs3_file_inode_operations = { 938ab96291eSBryan Schumaker .permission = nfs_permission, 939ab96291eSBryan Schumaker .getattr = nfs_getattr, 940ab96291eSBryan Schumaker .setattr = nfs_setattr, 9415f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 94274adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 943013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 944013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 945013cdf10SChristoph Hellwig #endif 946ab96291eSBryan Schumaker }; 947ab96291eSBryan Schumaker 948509de811SDavid Howells const struct nfs_rpc_ops nfs_v3_clientops = { 9491da177e4SLinus Torvalds .version = 3, /* protocol version */ 9501da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 951b7fa0554SAndreas Gruenbacher .dir_inode_ops = &nfs3_dir_inode_operations, 952b7fa0554SAndreas Gruenbacher .file_inode_ops = &nfs3_file_inode_operations, 9531788ea6eSJeff Layton .file_ops = &nfs_file_operations, 954f30cb757SBenjamin Coddington .nlmclnt_ops = &nlmclnt_fl_close_lock_ops, 9551da177e4SLinus Torvalds .getroot = nfs3_proc_get_root, 956281cad46SBryan Schumaker .submount = nfs_submount, 957ff9099f2SBryan Schumaker .try_mount = nfs_try_mount, 9581da177e4SLinus Torvalds .getattr = nfs3_proc_getattr, 9591da177e4SLinus Torvalds .setattr = nfs3_proc_setattr, 9601da177e4SLinus Torvalds .lookup = nfs3_proc_lookup, 9611da177e4SLinus Torvalds .access = nfs3_proc_access, 9621da177e4SLinus Torvalds .readlink = nfs3_proc_readlink, 9631da177e4SLinus Torvalds .create = nfs3_proc_create, 9641da177e4SLinus Torvalds .remove = nfs3_proc_remove, 9651da177e4SLinus Torvalds .unlink_setup = nfs3_proc_unlink_setup, 96634e137ccSBryan Schumaker .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare, 9671da177e4SLinus Torvalds .unlink_done = nfs3_proc_unlink_done, 968d3d4152aSJeff Layton .rename_setup = nfs3_proc_rename_setup, 969c6bfa1a1SBryan Schumaker .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare, 970d3d4152aSJeff Layton .rename_done = nfs3_proc_rename_done, 9711da177e4SLinus Torvalds .link = nfs3_proc_link, 9721da177e4SLinus Torvalds .symlink = nfs3_proc_symlink, 9731da177e4SLinus Torvalds .mkdir = nfs3_proc_mkdir, 9741da177e4SLinus Torvalds .rmdir = nfs3_proc_rmdir, 9751da177e4SLinus Torvalds .readdir = nfs3_proc_readdir, 9761da177e4SLinus Torvalds .mknod = nfs3_proc_mknod, 9771da177e4SLinus Torvalds .statfs = nfs3_proc_statfs, 9781da177e4SLinus Torvalds .fsinfo = nfs3_proc_fsinfo, 9791da177e4SLinus Torvalds .pathconf = nfs3_proc_pathconf, 9801da177e4SLinus Torvalds .decode_dirent = nfs3_decode_dirent, 981a4cdda59SAnna Schumaker .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare, 9821da177e4SLinus Torvalds .read_setup = nfs3_proc_read_setup, 983ec06c096STrond Myklebust .read_done = nfs3_read_done, 9841da177e4SLinus Torvalds .write_setup = nfs3_proc_write_setup, 985788e7a89STrond Myklebust .write_done = nfs3_write_done, 9861da177e4SLinus Torvalds .commit_setup = nfs3_proc_commit_setup, 9870b7c0153SFred Isaman .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare, 988788e7a89STrond Myklebust .commit_done = nfs3_commit_done, 9891da177e4SLinus Torvalds .lock = nfs3_proc_lock, 990013cdf10SChristoph Hellwig .clear_acl_cache = forget_all_cached_acls, 9917fe5c398STrond Myklebust .close_context = nfs_close_context, 992011e2a7fSBryan Schumaker .have_delegation = nfs3_have_delegation, 99357ec14c5SBryan Schumaker .return_delegation = nfs3_return_delegation, 9946663ee7fSBryan Schumaker .alloc_client = nfs_alloc_client, 99545a52a02SAndy Adamson .init_client = nfs_init_client, 996cdb7ecedSBryan Schumaker .free_client = nfs_free_client, 9971179acc6SBryan Schumaker .create_server = nfs3_create_server, 9981179acc6SBryan Schumaker .clone_server = nfs3_clone_server, 9991da177e4SLinus Torvalds }; 1000