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), 1911da177e4SLinus Torvalds }; 192c407d41aSTrond Myklebust struct nfs3_accessres res; 1931da177e4SLinus Torvalds struct rpc_message msg = { 1941da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], 1951da177e4SLinus Torvalds .rpc_argp = &arg, 1961da177e4SLinus Torvalds .rpc_resp = &res, 197dead28daSChuck Lever .rpc_cred = entry->cred, 1981da177e4SLinus Torvalds }; 1991da177e4SLinus Torvalds int mode = entry->mask; 200c407d41aSTrond Myklebust int status = -ENOMEM; 2011da177e4SLinus Torvalds 2021da177e4SLinus Torvalds dprintk("NFS call access\n"); 2031da177e4SLinus Torvalds 2041da177e4SLinus Torvalds if (mode & MAY_READ) 2051da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_READ; 2061da177e4SLinus Torvalds if (S_ISDIR(inode->i_mode)) { 2071da177e4SLinus Torvalds if (mode & MAY_WRITE) 2081da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; 2091da177e4SLinus Torvalds if (mode & MAY_EXEC) 2101da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_LOOKUP; 2111da177e4SLinus Torvalds } else { 2121da177e4SLinus Torvalds if (mode & MAY_WRITE) 2131da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; 2141da177e4SLinus Torvalds if (mode & MAY_EXEC) 2151da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_EXECUTE; 2161da177e4SLinus Torvalds } 217c407d41aSTrond Myklebust 218c407d41aSTrond Myklebust res.fattr = nfs_alloc_fattr(); 219c407d41aSTrond Myklebust if (res.fattr == NULL) 220c407d41aSTrond Myklebust goto out; 221c407d41aSTrond Myklebust 2221da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 223c407d41aSTrond Myklebust nfs_refresh_inode(inode, res.fattr); 224eda3e208STrond Myklebust if (status == 0) 225eda3e208STrond Myklebust nfs_access_set_mask(entry, res.access); 226c407d41aSTrond Myklebust nfs_free_fattr(res.fattr); 227c407d41aSTrond Myklebust out: 2281da177e4SLinus Torvalds dprintk("NFS reply access: %d\n", status); 2291da177e4SLinus Torvalds return status; 2301da177e4SLinus Torvalds } 2311da177e4SLinus Torvalds 2321da177e4SLinus Torvalds static int nfs3_proc_readlink(struct inode *inode, struct page *page, 2331da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 2341da177e4SLinus Torvalds { 2353b14d654STrond Myklebust struct nfs_fattr *fattr; 2361da177e4SLinus Torvalds struct nfs3_readlinkargs args = { 2371da177e4SLinus Torvalds .fh = NFS_FH(inode), 2381da177e4SLinus Torvalds .pgbase = pgbase, 2391da177e4SLinus Torvalds .pglen = pglen, 2401da177e4SLinus Torvalds .pages = &page 2411da177e4SLinus Torvalds }; 242dead28daSChuck Lever struct rpc_message msg = { 243dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], 244dead28daSChuck Lever .rpc_argp = &args, 245dead28daSChuck Lever }; 2463b14d654STrond Myklebust int status = -ENOMEM; 2471da177e4SLinus Torvalds 2481da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 2493b14d654STrond Myklebust fattr = nfs_alloc_fattr(); 2503b14d654STrond Myklebust if (fattr == NULL) 2513b14d654STrond Myklebust goto out; 2523b14d654STrond Myklebust msg.rpc_resp = fattr; 2533b14d654STrond Myklebust 254dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2553b14d654STrond Myklebust nfs_refresh_inode(inode, fattr); 2563b14d654STrond Myklebust nfs_free_fattr(fattr); 2573b14d654STrond Myklebust out: 2581da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 2591da177e4SLinus Torvalds return status; 2601da177e4SLinus Torvalds } 2611da177e4SLinus Torvalds 2620b4aae7aSTrond Myklebust struct nfs3_createdata { 2630b4aae7aSTrond Myklebust struct rpc_message msg; 2640b4aae7aSTrond Myklebust union { 2650b4aae7aSTrond Myklebust struct nfs3_createargs create; 2660b4aae7aSTrond Myklebust struct nfs3_mkdirargs mkdir; 2670b4aae7aSTrond Myklebust struct nfs3_symlinkargs symlink; 2680b4aae7aSTrond Myklebust struct nfs3_mknodargs mknod; 2690b4aae7aSTrond Myklebust } arg; 2700b4aae7aSTrond Myklebust struct nfs3_diropres res; 2710b4aae7aSTrond Myklebust struct nfs_fh fh; 2720b4aae7aSTrond Myklebust struct nfs_fattr fattr; 2730b4aae7aSTrond Myklebust struct nfs_fattr dir_attr; 2740b4aae7aSTrond Myklebust }; 2750b4aae7aSTrond Myklebust 2760b4aae7aSTrond Myklebust static struct nfs3_createdata *nfs3_alloc_createdata(void) 2770b4aae7aSTrond Myklebust { 2780b4aae7aSTrond Myklebust struct nfs3_createdata *data; 2790b4aae7aSTrond Myklebust 2800b4aae7aSTrond Myklebust data = kzalloc(sizeof(*data), GFP_KERNEL); 2810b4aae7aSTrond Myklebust if (data != NULL) { 2820b4aae7aSTrond Myklebust data->msg.rpc_argp = &data->arg; 2830b4aae7aSTrond Myklebust data->msg.rpc_resp = &data->res; 2840b4aae7aSTrond Myklebust data->res.fh = &data->fh; 2850b4aae7aSTrond Myklebust data->res.fattr = &data->fattr; 2860b4aae7aSTrond Myklebust data->res.dir_attr = &data->dir_attr; 2870b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 2880b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 2890b4aae7aSTrond Myklebust } 2900b4aae7aSTrond Myklebust return data; 2910b4aae7aSTrond Myklebust } 2920b4aae7aSTrond Myklebust 2930b4aae7aSTrond Myklebust static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) 2940b4aae7aSTrond Myklebust { 2950b4aae7aSTrond Myklebust int status; 2960b4aae7aSTrond Myklebust 2970b4aae7aSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); 2980b4aae7aSTrond Myklebust nfs_post_op_update_inode(dir, data->res.dir_attr); 2990b4aae7aSTrond Myklebust if (status == 0) 3001775fd3eSDavid Quigley status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL); 3010b4aae7aSTrond Myklebust return status; 3020b4aae7aSTrond Myklebust } 3030b4aae7aSTrond Myklebust 3040b4aae7aSTrond Myklebust static void nfs3_free_createdata(struct nfs3_createdata *data) 3050b4aae7aSTrond Myklebust { 3060b4aae7aSTrond Myklebust kfree(data); 3070b4aae7aSTrond Myklebust } 3080b4aae7aSTrond Myklebust 3091da177e4SLinus Torvalds /* 3101da177e4SLinus Torvalds * Create a regular file. 3111da177e4SLinus Torvalds */ 3121da177e4SLinus Torvalds static int 3131da177e4SLinus Torvalds nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 3148867fe58SMiklos Szeredi int flags) 3151da177e4SLinus Torvalds { 316013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 3170b4aae7aSTrond Myklebust struct nfs3_createdata *data; 3180b4aae7aSTrond Myklebust int status = -ENOMEM; 3191da177e4SLinus Torvalds 3206de1472fSAl Viro dprintk("NFS call create %pd\n", dentry); 3210b4aae7aSTrond Myklebust 3220b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 3230b4aae7aSTrond Myklebust if (data == NULL) 3240b4aae7aSTrond Myklebust goto out; 3250b4aae7aSTrond Myklebust 3260b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; 3270b4aae7aSTrond Myklebust data->arg.create.fh = NFS_FH(dir); 3280b4aae7aSTrond Myklebust data->arg.create.name = dentry->d_name.name; 3290b4aae7aSTrond Myklebust data->arg.create.len = dentry->d_name.len; 3300b4aae7aSTrond Myklebust data->arg.create.sattr = sattr; 3310b4aae7aSTrond Myklebust 3320b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3331da177e4SLinus Torvalds if (flags & O_EXCL) { 3340b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; 335a9943d11STrond Myklebust data->arg.create.verifier[0] = cpu_to_be32(jiffies); 336a9943d11STrond Myklebust data->arg.create.verifier[1] = cpu_to_be32(current->pid); 3371da177e4SLinus Torvalds } 3381da177e4SLinus Torvalds 339013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 340013cdf10SChristoph Hellwig if (status) 341013cdf10SChristoph Hellwig goto out; 342055ffbeaSAndreas Gruenbacher 3430b4aae7aSTrond Myklebust for (;;) { 3440b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 3451da177e4SLinus Torvalds 3460b4aae7aSTrond Myklebust if (status != -ENOTSUPP) 3470b4aae7aSTrond Myklebust break; 3480b4aae7aSTrond Myklebust /* If the server doesn't support the exclusive creation 3490b4aae7aSTrond Myklebust * semantics, try again with simple 'guarded' mode. */ 3500b4aae7aSTrond Myklebust switch (data->arg.create.createmode) { 3511da177e4SLinus Torvalds case NFS3_CREATE_EXCLUSIVE: 3520b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_GUARDED; 3531da177e4SLinus Torvalds break; 3541da177e4SLinus Torvalds 3551da177e4SLinus Torvalds case NFS3_CREATE_GUARDED: 3560b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3571da177e4SLinus Torvalds break; 3581da177e4SLinus Torvalds 3591da177e4SLinus Torvalds case NFS3_CREATE_UNCHECKED: 3601da177e4SLinus Torvalds goto out; 3611da177e4SLinus Torvalds } 3620b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 3630b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 3641da177e4SLinus Torvalds } 3651da177e4SLinus Torvalds 3661da177e4SLinus Torvalds if (status != 0) 367013cdf10SChristoph Hellwig goto out_release_acls; 3681da177e4SLinus Torvalds 3691da177e4SLinus Torvalds /* When we created the file with exclusive semantics, make 3701da177e4SLinus Torvalds * sure we set the attributes afterwards. */ 3710b4aae7aSTrond Myklebust if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { 3721da177e4SLinus Torvalds dprintk("NFS call setattr (post-create)\n"); 3731da177e4SLinus Torvalds 3741da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_ATIME_SET)) 3751da177e4SLinus Torvalds sattr->ia_valid |= ATTR_ATIME; 3761da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_MTIME_SET)) 3771da177e4SLinus Torvalds sattr->ia_valid |= ATTR_MTIME; 3781da177e4SLinus Torvalds 3791da177e4SLinus Torvalds /* Note: we could use a guarded setattr here, but I'm 3801da177e4SLinus Torvalds * not sure this buys us anything (and I'd have 3811da177e4SLinus Torvalds * to revamp the NFSv3 XDR code) */ 3820b4aae7aSTrond Myklebust status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); 3832b0143b5SDavid Howells nfs_post_op_update_inode(d_inode(dentry), data->res.fattr); 3841da177e4SLinus Torvalds dprintk("NFS reply setattr (post-create): %d\n", status); 385055ffbeaSAndreas Gruenbacher if (status != 0) 386013cdf10SChristoph Hellwig goto out_release_acls; 3870b4aae7aSTrond Myklebust } 388013cdf10SChristoph Hellwig 3892b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 390013cdf10SChristoph Hellwig 391013cdf10SChristoph Hellwig out_release_acls: 392013cdf10SChristoph Hellwig posix_acl_release(acl); 393013cdf10SChristoph Hellwig posix_acl_release(default_acl); 3941da177e4SLinus Torvalds out: 3950b4aae7aSTrond Myklebust nfs3_free_createdata(data); 3961da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 3971da177e4SLinus Torvalds return status; 3981da177e4SLinus Torvalds } 3991da177e4SLinus Torvalds 4001da177e4SLinus Torvalds static int 401beffb8feSAl Viro nfs3_proc_remove(struct inode *dir, const struct qstr *name) 4021da177e4SLinus Torvalds { 4034fdc17b2STrond Myklebust struct nfs_removeargs arg = { 4041da177e4SLinus Torvalds .fh = NFS_FH(dir), 40526fe5750SLinus Torvalds .name = *name, 4061da177e4SLinus Torvalds }; 4074fdc17b2STrond Myklebust struct nfs_removeres res; 4081da177e4SLinus Torvalds struct rpc_message msg = { 4091da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], 4101da177e4SLinus Torvalds .rpc_argp = &arg, 4114fdc17b2STrond Myklebust .rpc_resp = &res, 4121da177e4SLinus Torvalds }; 413d346890bSTrond Myklebust int status = -ENOMEM; 4141da177e4SLinus Torvalds 4151da177e4SLinus Torvalds dprintk("NFS call remove %s\n", name->name); 416d346890bSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 417d346890bSTrond Myklebust if (res.dir_attr == NULL) 418d346890bSTrond Myklebust goto out; 419d346890bSTrond Myklebust 4201da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 421d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 422d346890bSTrond Myklebust nfs_free_fattr(res.dir_attr); 423d346890bSTrond Myklebust out: 4241da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 4251da177e4SLinus Torvalds return status; 4261da177e4SLinus Torvalds } 4271da177e4SLinus Torvalds 428e4eff1a6STrond Myklebust static void 429e4eff1a6STrond Myklebust nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) 4301da177e4SLinus Torvalds { 4311da177e4SLinus Torvalds msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; 4321da177e4SLinus Torvalds } 4331da177e4SLinus Torvalds 43434e137ccSBryan Schumaker static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data) 43534e137ccSBryan Schumaker { 43634e137ccSBryan Schumaker rpc_call_start(task); 43734e137ccSBryan Schumaker } 43834e137ccSBryan Schumaker 4391da177e4SLinus Torvalds static int 440e4eff1a6STrond Myklebust nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) 4411da177e4SLinus Torvalds { 442e4eff1a6STrond Myklebust struct nfs_removeres *res; 443e4eff1a6STrond Myklebust if (nfs3_async_handle_jukebox(task, dir)) 4441da177e4SLinus Torvalds return 0; 445e4eff1a6STrond Myklebust res = task->tk_msg.rpc_resp; 446d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res->dir_attr); 447e4eff1a6STrond Myklebust return 1; 4481da177e4SLinus Torvalds } 4491da177e4SLinus Torvalds 450d3d4152aSJeff Layton static void 451d3d4152aSJeff Layton nfs3_proc_rename_setup(struct rpc_message *msg, struct inode *dir) 452d3d4152aSJeff Layton { 453d3d4152aSJeff Layton msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME]; 454d3d4152aSJeff Layton } 455d3d4152aSJeff Layton 456c6bfa1a1SBryan Schumaker static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data) 457c6bfa1a1SBryan Schumaker { 458c6bfa1a1SBryan Schumaker rpc_call_start(task); 459c6bfa1a1SBryan Schumaker } 460c6bfa1a1SBryan Schumaker 461d3d4152aSJeff Layton static int 462d3d4152aSJeff Layton nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir, 463d3d4152aSJeff Layton struct inode *new_dir) 464d3d4152aSJeff Layton { 465d3d4152aSJeff Layton struct nfs_renameres *res; 466d3d4152aSJeff Layton 467d3d4152aSJeff Layton if (nfs3_async_handle_jukebox(task, old_dir)) 468d3d4152aSJeff Layton return 0; 469d3d4152aSJeff Layton res = task->tk_msg.rpc_resp; 470d3d4152aSJeff Layton 471d3d4152aSJeff Layton nfs_post_op_update_inode(old_dir, res->old_fattr); 472d3d4152aSJeff Layton nfs_post_op_update_inode(new_dir, res->new_fattr); 473d3d4152aSJeff Layton return 1; 474d3d4152aSJeff Layton } 475d3d4152aSJeff Layton 4761da177e4SLinus Torvalds static int 477beffb8feSAl Viro nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name) 4781da177e4SLinus Torvalds { 4791da177e4SLinus Torvalds struct nfs3_linkargs arg = { 4801da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 4811da177e4SLinus Torvalds .tofh = NFS_FH(dir), 4821da177e4SLinus Torvalds .toname = name->name, 4831da177e4SLinus Torvalds .tolen = name->len 4841da177e4SLinus Torvalds }; 485136f2627STrond Myklebust struct nfs3_linkres res; 486dead28daSChuck Lever struct rpc_message msg = { 487dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], 488dead28daSChuck Lever .rpc_argp = &arg, 489dead28daSChuck Lever .rpc_resp = &res, 490dead28daSChuck Lever }; 491136f2627STrond Myklebust int status = -ENOMEM; 4921da177e4SLinus Torvalds 4931da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 494136f2627STrond Myklebust res.fattr = nfs_alloc_fattr(); 495136f2627STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 496136f2627STrond Myklebust if (res.fattr == NULL || res.dir_attr == NULL) 497136f2627STrond Myklebust goto out; 498136f2627STrond Myklebust 499dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 500136f2627STrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 501136f2627STrond Myklebust nfs_post_op_update_inode(inode, res.fattr); 502136f2627STrond Myklebust out: 503136f2627STrond Myklebust nfs_free_fattr(res.dir_attr); 504136f2627STrond Myklebust nfs_free_fattr(res.fattr); 5051da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 5061da177e4SLinus Torvalds return status; 5071da177e4SLinus Torvalds } 5081da177e4SLinus Torvalds 5091da177e4SLinus Torvalds static int 51094a6d753SChuck Lever nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, 51194a6d753SChuck Lever unsigned int len, struct iattr *sattr) 5121da177e4SLinus Torvalds { 5130b4aae7aSTrond Myklebust struct nfs3_createdata *data; 5140b4aae7aSTrond Myklebust int status = -ENOMEM; 5151da177e4SLinus Torvalds 51694a6d753SChuck Lever if (len > NFS3_MAXPATHLEN) 5171da177e4SLinus Torvalds return -ENAMETOOLONG; 5184f390c15SChuck Lever 5196de1472fSAl Viro dprintk("NFS call symlink %pd\n", dentry); 52094a6d753SChuck Lever 5210b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5220b4aae7aSTrond Myklebust if (data == NULL) 5234f390c15SChuck Lever goto out; 5240b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; 5250b4aae7aSTrond Myklebust data->arg.symlink.fromfh = NFS_FH(dir); 5260b4aae7aSTrond Myklebust data->arg.symlink.fromname = dentry->d_name.name; 5270b4aae7aSTrond Myklebust data->arg.symlink.fromlen = dentry->d_name.len; 5280b4aae7aSTrond Myklebust data->arg.symlink.pages = &page; 5290b4aae7aSTrond Myklebust data->arg.symlink.pathlen = len; 5300b4aae7aSTrond Myklebust data->arg.symlink.sattr = sattr; 5310b4aae7aSTrond Myklebust 5320b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 5330b4aae7aSTrond Myklebust 5340b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5354f390c15SChuck Lever out: 5361da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 5371da177e4SLinus Torvalds return status; 5381da177e4SLinus Torvalds } 5391da177e4SLinus Torvalds 5401da177e4SLinus Torvalds static int 5411da177e4SLinus Torvalds nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 5421da177e4SLinus Torvalds { 543013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 5440b4aae7aSTrond Myklebust struct nfs3_createdata *data; 5450b4aae7aSTrond Myklebust int status = -ENOMEM; 5461da177e4SLinus Torvalds 5476de1472fSAl Viro dprintk("NFS call mkdir %pd\n", dentry); 548055ffbeaSAndreas Gruenbacher 5490b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5500b4aae7aSTrond Myklebust if (data == NULL) 5510b4aae7aSTrond Myklebust goto out; 5520b4aae7aSTrond Myklebust 553013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 554013cdf10SChristoph Hellwig if (status) 555013cdf10SChristoph Hellwig goto out; 556013cdf10SChristoph Hellwig 5570b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; 5580b4aae7aSTrond Myklebust data->arg.mkdir.fh = NFS_FH(dir); 5590b4aae7aSTrond Myklebust data->arg.mkdir.name = dentry->d_name.name; 5600b4aae7aSTrond Myklebust data->arg.mkdir.len = dentry->d_name.len; 5610b4aae7aSTrond Myklebust data->arg.mkdir.sattr = sattr; 5620b4aae7aSTrond Myklebust 5630b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 564055ffbeaSAndreas Gruenbacher if (status != 0) 565013cdf10SChristoph Hellwig goto out_release_acls; 5660b4aae7aSTrond Myklebust 5672b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 568013cdf10SChristoph Hellwig 569013cdf10SChristoph Hellwig out_release_acls: 570013cdf10SChristoph Hellwig posix_acl_release(acl); 571013cdf10SChristoph Hellwig posix_acl_release(default_acl); 572055ffbeaSAndreas Gruenbacher out: 5730b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5741da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 5751da177e4SLinus Torvalds return status; 5761da177e4SLinus Torvalds } 5771da177e4SLinus Torvalds 5781da177e4SLinus Torvalds static int 579beffb8feSAl Viro nfs3_proc_rmdir(struct inode *dir, const struct qstr *name) 5801da177e4SLinus Torvalds { 58139967ddfSTrond Myklebust struct nfs_fattr *dir_attr; 5821da177e4SLinus Torvalds struct nfs3_diropargs arg = { 5831da177e4SLinus Torvalds .fh = NFS_FH(dir), 5841da177e4SLinus Torvalds .name = name->name, 5851da177e4SLinus Torvalds .len = name->len 5861da177e4SLinus Torvalds }; 587dead28daSChuck Lever struct rpc_message msg = { 588dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], 589dead28daSChuck Lever .rpc_argp = &arg, 590dead28daSChuck Lever }; 59139967ddfSTrond Myklebust int status = -ENOMEM; 5921da177e4SLinus Torvalds 5931da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 59439967ddfSTrond Myklebust dir_attr = nfs_alloc_fattr(); 59539967ddfSTrond Myklebust if (dir_attr == NULL) 59639967ddfSTrond Myklebust goto out; 59739967ddfSTrond Myklebust 59839967ddfSTrond Myklebust msg.rpc_resp = dir_attr; 599dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 60039967ddfSTrond Myklebust nfs_post_op_update_inode(dir, dir_attr); 60139967ddfSTrond Myklebust nfs_free_fattr(dir_attr); 60239967ddfSTrond Myklebust out: 6031da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 6041da177e4SLinus Torvalds return status; 6051da177e4SLinus Torvalds } 6061da177e4SLinus Torvalds 6071da177e4SLinus Torvalds /* 6081da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass the user buffer 6091da177e4SLinus Torvalds * to the encode function, which installs it in the receive iovec. 6101da177e4SLinus Torvalds * The decode function itself doesn't perform any decoding, it just makes 6111da177e4SLinus Torvalds * sure the reply is syntactically correct. 6121da177e4SLinus Torvalds * 6131da177e4SLinus Torvalds * Also note that this implementation handles both plain readdir and 6141da177e4SLinus Torvalds * readdirplus. 6151da177e4SLinus Torvalds */ 6161da177e4SLinus Torvalds static int 6171da177e4SLinus Torvalds nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, 618a7a3b1e9SBenjamin Coddington u64 cookie, struct page **pages, unsigned int count, bool plus) 6191da177e4SLinus Torvalds { 6202b0143b5SDavid Howells struct inode *dir = d_inode(dentry); 621c3f52af3STrond Myklebust __be32 *verf = NFS_I(dir)->cookieverf; 6221da177e4SLinus Torvalds struct nfs3_readdirargs arg = { 6231da177e4SLinus Torvalds .fh = NFS_FH(dir), 6241da177e4SLinus Torvalds .cookie = cookie, 6251da177e4SLinus Torvalds .verf = {verf[0], verf[1]}, 6261da177e4SLinus Torvalds .plus = plus, 6271da177e4SLinus Torvalds .count = count, 62856e4ebf8SBryan Schumaker .pages = pages 6291da177e4SLinus Torvalds }; 6301da177e4SLinus Torvalds struct nfs3_readdirres res = { 6311da177e4SLinus Torvalds .verf = verf, 6321da177e4SLinus Torvalds .plus = plus 6331da177e4SLinus Torvalds }; 6341da177e4SLinus Torvalds struct rpc_message msg = { 6351da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], 6361da177e4SLinus Torvalds .rpc_argp = &arg, 6371da177e4SLinus Torvalds .rpc_resp = &res, 6381da177e4SLinus Torvalds .rpc_cred = cred 6391da177e4SLinus Torvalds }; 640aa49b4cfSTrond Myklebust int status = -ENOMEM; 6411da177e4SLinus Torvalds 6421da177e4SLinus Torvalds if (plus) 6431da177e4SLinus Torvalds msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; 6441da177e4SLinus Torvalds 6451da177e4SLinus Torvalds dprintk("NFS call readdir%s %d\n", 6461da177e4SLinus Torvalds plus? "plus" : "", (unsigned int) cookie); 6471da177e4SLinus Torvalds 648aa49b4cfSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 649aa49b4cfSTrond Myklebust if (res.dir_attr == NULL) 650aa49b4cfSTrond Myklebust goto out; 651aa49b4cfSTrond Myklebust 6521da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 653c4812998STrond Myklebust 654c4812998STrond Myklebust nfs_invalidate_atime(dir); 655aa49b4cfSTrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 656c4812998STrond Myklebust 657aa49b4cfSTrond Myklebust nfs_free_fattr(res.dir_attr); 658aa49b4cfSTrond Myklebust out: 659d141d974SChuck Lever dprintk("NFS reply readdir%s: %d\n", 660d141d974SChuck Lever plus? "plus" : "", status); 6611da177e4SLinus Torvalds return status; 6621da177e4SLinus Torvalds } 6631da177e4SLinus Torvalds 6641da177e4SLinus Torvalds static int 6651da177e4SLinus Torvalds nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 6661da177e4SLinus Torvalds dev_t rdev) 6671da177e4SLinus Torvalds { 668013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 6690b4aae7aSTrond Myklebust struct nfs3_createdata *data; 6700b4aae7aSTrond Myklebust int status = -ENOMEM; 6711da177e4SLinus Torvalds 6726de1472fSAl Viro dprintk("NFS call mknod %pd %u:%u\n", dentry, 6731da177e4SLinus Torvalds MAJOR(rdev), MINOR(rdev)); 674055ffbeaSAndreas Gruenbacher 6750b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 6760b4aae7aSTrond Myklebust if (data == NULL) 677055ffbeaSAndreas Gruenbacher goto out; 6780b4aae7aSTrond Myklebust 679013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 680013cdf10SChristoph Hellwig if (status) 681013cdf10SChristoph Hellwig goto out; 682013cdf10SChristoph Hellwig 6830b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; 6840b4aae7aSTrond Myklebust data->arg.mknod.fh = NFS_FH(dir); 6850b4aae7aSTrond Myklebust data->arg.mknod.name = dentry->d_name.name; 6860b4aae7aSTrond Myklebust data->arg.mknod.len = dentry->d_name.len; 6870b4aae7aSTrond Myklebust data->arg.mknod.sattr = sattr; 6880b4aae7aSTrond Myklebust data->arg.mknod.rdev = rdev; 6890b4aae7aSTrond Myklebust 6900b4aae7aSTrond Myklebust switch (sattr->ia_mode & S_IFMT) { 6910b4aae7aSTrond Myklebust case S_IFBLK: 6920b4aae7aSTrond Myklebust data->arg.mknod.type = NF3BLK; 6930b4aae7aSTrond Myklebust break; 6940b4aae7aSTrond Myklebust case S_IFCHR: 6950b4aae7aSTrond Myklebust data->arg.mknod.type = NF3CHR; 6960b4aae7aSTrond Myklebust break; 6970b4aae7aSTrond Myklebust case S_IFIFO: 6980b4aae7aSTrond Myklebust data->arg.mknod.type = NF3FIFO; 6990b4aae7aSTrond Myklebust break; 7000b4aae7aSTrond Myklebust case S_IFSOCK: 7010b4aae7aSTrond Myklebust data->arg.mknod.type = NF3SOCK; 7020b4aae7aSTrond Myklebust break; 7030b4aae7aSTrond Myklebust default: 7040b4aae7aSTrond Myklebust status = -EINVAL; 7050b4aae7aSTrond Myklebust goto out; 7060b4aae7aSTrond Myklebust } 7070b4aae7aSTrond Myklebust 7080b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 709055ffbeaSAndreas Gruenbacher if (status != 0) 710013cdf10SChristoph Hellwig goto out_release_acls; 711013cdf10SChristoph Hellwig 7122b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 713013cdf10SChristoph Hellwig 714013cdf10SChristoph Hellwig out_release_acls: 715013cdf10SChristoph Hellwig posix_acl_release(acl); 716013cdf10SChristoph Hellwig posix_acl_release(default_acl); 717055ffbeaSAndreas Gruenbacher out: 7180b4aae7aSTrond Myklebust nfs3_free_createdata(data); 7191da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 7201da177e4SLinus Torvalds return status; 7211da177e4SLinus Torvalds } 7221da177e4SLinus Torvalds 7231da177e4SLinus Torvalds static int 7241da177e4SLinus Torvalds nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 7251da177e4SLinus Torvalds struct nfs_fsstat *stat) 7261da177e4SLinus Torvalds { 727dead28daSChuck Lever struct rpc_message msg = { 728dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], 729dead28daSChuck Lever .rpc_argp = fhandle, 730dead28daSChuck Lever .rpc_resp = stat, 731dead28daSChuck Lever }; 7321da177e4SLinus Torvalds int status; 7331da177e4SLinus Torvalds 7341da177e4SLinus Torvalds dprintk("NFS call fsstat\n"); 7350e574af1STrond Myklebust nfs_fattr_init(stat->fattr); 736dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 737d141d974SChuck Lever dprintk("NFS reply fsstat: %d\n", status); 7381da177e4SLinus Torvalds return status; 7391da177e4SLinus Torvalds } 7401da177e4SLinus Torvalds 7411da177e4SLinus Torvalds static int 74237ca8f5cSEG Keizer do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle, 7431da177e4SLinus Torvalds struct nfs_fsinfo *info) 7441da177e4SLinus Torvalds { 745dead28daSChuck Lever struct rpc_message msg = { 746dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 747dead28daSChuck Lever .rpc_argp = fhandle, 748dead28daSChuck Lever .rpc_resp = info, 749dead28daSChuck Lever }; 7501da177e4SLinus Torvalds int status; 7511da177e4SLinus Torvalds 7521da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 7530e574af1STrond Myklebust nfs_fattr_init(info->fattr); 75437ca8f5cSEG Keizer status = rpc_call_sync(client, &msg, 0); 7551da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 7561da177e4SLinus Torvalds return status; 7571da177e4SLinus Torvalds } 7581da177e4SLinus Torvalds 75937ca8f5cSEG Keizer /* 76037ca8f5cSEG Keizer * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via 76137ca8f5cSEG Keizer * nfs_create_server 76237ca8f5cSEG Keizer */ 76337ca8f5cSEG Keizer static int 76437ca8f5cSEG Keizer nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 76537ca8f5cSEG Keizer struct nfs_fsinfo *info) 76637ca8f5cSEG Keizer { 76737ca8f5cSEG Keizer int status; 76837ca8f5cSEG Keizer 76937ca8f5cSEG Keizer status = do_proc_fsinfo(server->client, fhandle, info); 77037ca8f5cSEG Keizer if (status && server->nfs_client->cl_rpcclient != server->client) 77137ca8f5cSEG Keizer status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); 77237ca8f5cSEG Keizer return status; 77337ca8f5cSEG Keizer } 77437ca8f5cSEG Keizer 7751da177e4SLinus Torvalds static int 7761da177e4SLinus Torvalds nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 7771da177e4SLinus Torvalds struct nfs_pathconf *info) 7781da177e4SLinus Torvalds { 779dead28daSChuck Lever struct rpc_message msg = { 780dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], 781dead28daSChuck Lever .rpc_argp = fhandle, 782dead28daSChuck Lever .rpc_resp = info, 783dead28daSChuck Lever }; 7841da177e4SLinus Torvalds int status; 7851da177e4SLinus Torvalds 7861da177e4SLinus Torvalds dprintk("NFS call pathconf\n"); 7870e574af1STrond Myklebust nfs_fattr_init(info->fattr); 788dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 7891da177e4SLinus Torvalds dprintk("NFS reply pathconf: %d\n", status); 7901da177e4SLinus Torvalds return status; 7911da177e4SLinus Torvalds } 7921da177e4SLinus Torvalds 793d45f60c6SWeston Andros Adamson static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 7941da177e4SLinus Torvalds { 795d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 796cd841605SFred Isaman 79716cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 79816cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 79916cecdf6STrond Myklebust 800cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 801ec06c096STrond Myklebust return -EAGAIN; 8028850df99STrond Myklebust 803cd841605SFred Isaman nfs_invalidate_atime(inode); 804d45f60c6SWeston Andros Adamson nfs_refresh_inode(inode, &hdr->fattr); 805ec06c096STrond Myklebust return 0; 8061da177e4SLinus Torvalds } 8071da177e4SLinus Torvalds 808d45f60c6SWeston Andros Adamson static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr, 809d45f60c6SWeston Andros Adamson struct rpc_message *msg) 8101da177e4SLinus Torvalds { 811bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; 8121da177e4SLinus Torvalds } 8131da177e4SLinus Torvalds 814d45f60c6SWeston Andros Adamson static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task, 815d45f60c6SWeston Andros Adamson struct nfs_pgio_header *hdr) 816ea7c3303SBryan Schumaker { 817ea7c3303SBryan Schumaker rpc_call_start(task); 818ef1820f9SNeilBrown return 0; 819ea7c3303SBryan Schumaker } 820ea7c3303SBryan Schumaker 821d45f60c6SWeston Andros Adamson static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 8221da177e4SLinus Torvalds { 823d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 824cd841605SFred Isaman 82516cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 82616cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 82716cecdf6STrond Myklebust 828cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 829788e7a89STrond Myklebust return -EAGAIN; 8301da177e4SLinus Torvalds if (task->tk_status >= 0) 831a08a8cd3STrond Myklebust nfs_writeback_update_inode(hdr); 832788e7a89STrond Myklebust return 0; 8331da177e4SLinus Torvalds } 8341da177e4SLinus Torvalds 835d45f60c6SWeston Andros Adamson static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr, 836d45f60c6SWeston Andros Adamson struct rpc_message *msg) 8371da177e4SLinus Torvalds { 838bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; 8391da177e4SLinus Torvalds } 8401da177e4SLinus Torvalds 8410b7c0153SFred Isaman static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data) 8420b7c0153SFred Isaman { 8430b7c0153SFred Isaman rpc_call_start(task); 8440b7c0153SFred Isaman } 8450b7c0153SFred Isaman 8460b7c0153SFred Isaman static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data) 8471da177e4SLinus Torvalds { 84816cecdf6STrond Myklebust if (data->commit_done_cb != NULL) 84916cecdf6STrond Myklebust return data->commit_done_cb(task, data); 85016cecdf6STrond Myklebust 851006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 852788e7a89STrond Myklebust return -EAGAIN; 8539e08a3c5STrond Myklebust nfs_refresh_inode(data->inode, data->res.fattr); 854788e7a89STrond Myklebust return 0; 8551da177e4SLinus Torvalds } 8561da177e4SLinus Torvalds 8570b7c0153SFred Isaman static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg) 8581da177e4SLinus Torvalds { 859bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; 8601da177e4SLinus Torvalds } 8611da177e4SLinus Torvalds 862bb3393d5STrond Myklebust static void nfs3_nlm_alloc_call(void *data) 863f30cb757SBenjamin Coddington { 864f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 865f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) { 866f30cb757SBenjamin Coddington get_nfs_open_context(l_ctx->open_context); 867f30cb757SBenjamin Coddington nfs_get_lock_context(l_ctx->open_context); 868f30cb757SBenjamin Coddington } 869f30cb757SBenjamin Coddington } 870f30cb757SBenjamin Coddington 871bb3393d5STrond Myklebust static bool nfs3_nlm_unlock_prepare(struct rpc_task *task, void *data) 872f30cb757SBenjamin Coddington { 873f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 874f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) 875f30cb757SBenjamin Coddington return nfs_async_iocounter_wait(task, l_ctx); 876f30cb757SBenjamin Coddington return false; 877f30cb757SBenjamin Coddington 878f30cb757SBenjamin Coddington } 879f30cb757SBenjamin Coddington 880bb3393d5STrond Myklebust static void nfs3_nlm_release_call(void *data) 881f30cb757SBenjamin Coddington { 882f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = data; 883f30cb757SBenjamin Coddington struct nfs_open_context *ctx; 884f30cb757SBenjamin Coddington if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) { 885f30cb757SBenjamin Coddington ctx = l_ctx->open_context; 886f30cb757SBenjamin Coddington nfs_put_lock_context(l_ctx); 887f30cb757SBenjamin Coddington put_nfs_open_context(ctx); 888f30cb757SBenjamin Coddington } 889f30cb757SBenjamin Coddington } 890f30cb757SBenjamin Coddington 891f30cb757SBenjamin Coddington const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = { 892f30cb757SBenjamin Coddington .nlmclnt_alloc_call = nfs3_nlm_alloc_call, 893f30cb757SBenjamin Coddington .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare, 894f30cb757SBenjamin Coddington .nlmclnt_release_call = nfs3_nlm_release_call, 895f30cb757SBenjamin Coddington }; 896f30cb757SBenjamin Coddington 8971da177e4SLinus Torvalds static int 8981da177e4SLinus Torvalds nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) 8991da177e4SLinus Torvalds { 900496ad9aaSAl Viro struct inode *inode = file_inode(filp); 901f30cb757SBenjamin Coddington struct nfs_lock_context *l_ctx = NULL; 902f30cb757SBenjamin Coddington struct nfs_open_context *ctx = nfs_file_open_context(filp); 903f30cb757SBenjamin Coddington int status; 9041093a60eSChuck Lever 905f30cb757SBenjamin Coddington if (fl->fl_flags & FL_CLOSE) { 906f30cb757SBenjamin Coddington l_ctx = nfs_get_lock_context(ctx); 907f30cb757SBenjamin Coddington if (IS_ERR(l_ctx)) 908f30cb757SBenjamin Coddington l_ctx = NULL; 909f30cb757SBenjamin Coddington else 910f30cb757SBenjamin Coddington set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags); 911f30cb757SBenjamin Coddington } 912f30cb757SBenjamin Coddington 913f30cb757SBenjamin Coddington status = nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, l_ctx); 914f30cb757SBenjamin Coddington 915f30cb757SBenjamin Coddington if (l_ctx) 916f30cb757SBenjamin Coddington nfs_put_lock_context(l_ctx); 917f30cb757SBenjamin Coddington 918f30cb757SBenjamin Coddington return status; 9191da177e4SLinus Torvalds } 9201da177e4SLinus Torvalds 921011e2a7fSBryan Schumaker static int nfs3_have_delegation(struct inode *inode, fmode_t flags) 922011e2a7fSBryan Schumaker { 923011e2a7fSBryan Schumaker return 0; 924011e2a7fSBryan Schumaker } 925011e2a7fSBryan Schumaker 92657ec14c5SBryan Schumaker static int nfs3_return_delegation(struct inode *inode) 92757ec14c5SBryan Schumaker { 92857ec14c5SBryan Schumaker nfs_wb_all(inode); 92957ec14c5SBryan Schumaker return 0; 93057ec14c5SBryan Schumaker } 93157ec14c5SBryan Schumaker 932ab96291eSBryan Schumaker static const struct inode_operations nfs3_dir_inode_operations = { 933ab96291eSBryan Schumaker .create = nfs_create, 934ab96291eSBryan Schumaker .lookup = nfs_lookup, 935ab96291eSBryan Schumaker .link = nfs_link, 936ab96291eSBryan Schumaker .unlink = nfs_unlink, 937ab96291eSBryan Schumaker .symlink = nfs_symlink, 938ab96291eSBryan Schumaker .mkdir = nfs_mkdir, 939ab96291eSBryan Schumaker .rmdir = nfs_rmdir, 940ab96291eSBryan Schumaker .mknod = nfs_mknod, 941ab96291eSBryan Schumaker .rename = nfs_rename, 942ab96291eSBryan Schumaker .permission = nfs_permission, 943ab96291eSBryan Schumaker .getattr = nfs_getattr, 944ab96291eSBryan Schumaker .setattr = nfs_setattr, 9455f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 94674adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 947013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 948013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 949013cdf10SChristoph Hellwig #endif 950ab96291eSBryan Schumaker }; 951ab96291eSBryan Schumaker 952ab96291eSBryan Schumaker static const struct inode_operations nfs3_file_inode_operations = { 953ab96291eSBryan Schumaker .permission = nfs_permission, 954ab96291eSBryan Schumaker .getattr = nfs_getattr, 955ab96291eSBryan Schumaker .setattr = nfs_setattr, 9565f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 95774adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 958013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 959013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 960013cdf10SChristoph Hellwig #endif 961ab96291eSBryan Schumaker }; 962ab96291eSBryan Schumaker 963509de811SDavid Howells const struct nfs_rpc_ops nfs_v3_clientops = { 9641da177e4SLinus Torvalds .version = 3, /* protocol version */ 9651da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 966b7fa0554SAndreas Gruenbacher .dir_inode_ops = &nfs3_dir_inode_operations, 967b7fa0554SAndreas Gruenbacher .file_inode_ops = &nfs3_file_inode_operations, 9681788ea6eSJeff Layton .file_ops = &nfs_file_operations, 969f30cb757SBenjamin Coddington .nlmclnt_ops = &nlmclnt_fl_close_lock_ops, 9701da177e4SLinus Torvalds .getroot = nfs3_proc_get_root, 971281cad46SBryan Schumaker .submount = nfs_submount, 972ff9099f2SBryan Schumaker .try_mount = nfs_try_mount, 9731da177e4SLinus Torvalds .getattr = nfs3_proc_getattr, 9741da177e4SLinus Torvalds .setattr = nfs3_proc_setattr, 9751da177e4SLinus Torvalds .lookup = nfs3_proc_lookup, 9761da177e4SLinus Torvalds .access = nfs3_proc_access, 9771da177e4SLinus Torvalds .readlink = nfs3_proc_readlink, 9781da177e4SLinus Torvalds .create = nfs3_proc_create, 9791da177e4SLinus Torvalds .remove = nfs3_proc_remove, 9801da177e4SLinus Torvalds .unlink_setup = nfs3_proc_unlink_setup, 98134e137ccSBryan Schumaker .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare, 9821da177e4SLinus Torvalds .unlink_done = nfs3_proc_unlink_done, 983d3d4152aSJeff Layton .rename_setup = nfs3_proc_rename_setup, 984c6bfa1a1SBryan Schumaker .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare, 985d3d4152aSJeff Layton .rename_done = nfs3_proc_rename_done, 9861da177e4SLinus Torvalds .link = nfs3_proc_link, 9871da177e4SLinus Torvalds .symlink = nfs3_proc_symlink, 9881da177e4SLinus Torvalds .mkdir = nfs3_proc_mkdir, 9891da177e4SLinus Torvalds .rmdir = nfs3_proc_rmdir, 9901da177e4SLinus Torvalds .readdir = nfs3_proc_readdir, 9911da177e4SLinus Torvalds .mknod = nfs3_proc_mknod, 9921da177e4SLinus Torvalds .statfs = nfs3_proc_statfs, 9931da177e4SLinus Torvalds .fsinfo = nfs3_proc_fsinfo, 9941da177e4SLinus Torvalds .pathconf = nfs3_proc_pathconf, 9951da177e4SLinus Torvalds .decode_dirent = nfs3_decode_dirent, 996a4cdda59SAnna Schumaker .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare, 9971da177e4SLinus Torvalds .read_setup = nfs3_proc_read_setup, 998ec06c096STrond Myklebust .read_done = nfs3_read_done, 9991da177e4SLinus Torvalds .write_setup = nfs3_proc_write_setup, 1000788e7a89STrond Myklebust .write_done = nfs3_write_done, 10011da177e4SLinus Torvalds .commit_setup = nfs3_proc_commit_setup, 10020b7c0153SFred Isaman .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare, 1003788e7a89STrond Myklebust .commit_done = nfs3_commit_done, 10041da177e4SLinus Torvalds .lock = nfs3_proc_lock, 1005013cdf10SChristoph Hellwig .clear_acl_cache = forget_all_cached_acls, 10067fe5c398STrond Myklebust .close_context = nfs_close_context, 1007011e2a7fSBryan Schumaker .have_delegation = nfs3_have_delegation, 100857ec14c5SBryan Schumaker .return_delegation = nfs3_return_delegation, 10096663ee7fSBryan Schumaker .alloc_client = nfs_alloc_client, 101045a52a02SAndy Adamson .init_client = nfs_init_client, 1011cdb7ecedSBryan Schumaker .free_client = nfs_free_client, 10121179acc6SBryan Schumaker .create_server = nfs3_create_server, 10131179acc6SBryan Schumaker .clone_server = nfs3_clone_server, 10141da177e4SLinus Torvalds }; 1015