11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/fs/nfs/nfs3proc.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side NFSv3 procedures stubs. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (C) 1997, Olaf Kirch 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #include <linux/mm.h> 101da177e4SLinus Torvalds #include <linux/errno.h> 111da177e4SLinus Torvalds #include <linux/string.h> 121da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 135a0e3ad6STejun Heo #include <linux/slab.h> 141da177e4SLinus Torvalds #include <linux/nfs.h> 151da177e4SLinus Torvalds #include <linux/nfs3.h> 161da177e4SLinus Torvalds #include <linux/nfs_fs.h> 171da177e4SLinus Torvalds #include <linux/nfs_page.h> 181da177e4SLinus Torvalds #include <linux/lockd/bind.h> 19b7fa0554SAndreas Gruenbacher #include <linux/nfs_mount.h> 20d310310cSJeff Layton #include <linux/freezer.h> 210a6be655STejun Heo #include <linux/xattr.h> 221da177e4SLinus Torvalds 23006ea73eSChuck Lever #include "iostat.h" 24f7b422b1SDavid Howells #include "internal.h" 2500a36a10SAnna Schumaker #include "nfs3_fs.h" 26006ea73eSChuck Lever 271da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_PROC 281da177e4SLinus Torvalds 29eb96d5c9SAndy Adamson /* A wrapper to handle the EJUKEBOX error messages */ 301da177e4SLinus Torvalds static int 311da177e4SLinus Torvalds nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags) 321da177e4SLinus Torvalds { 331da177e4SLinus Torvalds int res; 341da177e4SLinus Torvalds do { 351da177e4SLinus Torvalds res = rpc_call_sync(clnt, msg, flags); 36eb96d5c9SAndy Adamson if (res != -EJUKEBOX) 371da177e4SLinus Torvalds break; 38416ad3c9SColin Cross freezable_schedule_timeout_killable_unsafe(NFS_JUKEBOX_RETRY_TIME); 391da177e4SLinus Torvalds res = -ERESTARTSYS; 40150030b7SMatthew Wilcox } while (!fatal_signal_pending(current)); 411da177e4SLinus Torvalds return res; 421da177e4SLinus Torvalds } 431da177e4SLinus Torvalds 44dead28daSChuck Lever #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags) 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds static int 47006ea73eSChuck Lever nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) 481da177e4SLinus Torvalds { 49eb96d5c9SAndy Adamson if (task->tk_status != -EJUKEBOX) 501da177e4SLinus Torvalds return 0; 51b68d69b8SJeff Layton if (task->tk_status == -EJUKEBOX) 52006ea73eSChuck Lever nfs_inc_stats(inode, NFSIOS_DELAY); 531da177e4SLinus Torvalds task->tk_status = 0; 541da177e4SLinus Torvalds rpc_restart_call(task); 551da177e4SLinus Torvalds rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); 561da177e4SLinus Torvalds return 1; 571da177e4SLinus Torvalds } 581da177e4SLinus Torvalds 5903c21733SJ. Bruce Fields static int 6003c21733SJ. Bruce Fields do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, 6103c21733SJ. Bruce Fields struct nfs_fsinfo *info) 6203c21733SJ. Bruce Fields { 63dead28daSChuck Lever struct rpc_message msg = { 64dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 65dead28daSChuck Lever .rpc_argp = fhandle, 66dead28daSChuck Lever .rpc_resp = info, 67dead28daSChuck Lever }; 6803c21733SJ. Bruce Fields int status; 6903c21733SJ. Bruce Fields 703110ff80SHarvey Harrison dprintk("%s: call fsinfo\n", __func__); 7103c21733SJ. Bruce Fields nfs_fattr_init(info->fattr); 72dead28daSChuck Lever status = rpc_call_sync(client, &msg, 0); 733110ff80SHarvey Harrison dprintk("%s: reply fsinfo: %d\n", __func__, status); 7408660043STrond Myklebust if (status == 0 && !(info->fattr->valid & NFS_ATTR_FATTR)) { 75dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 76dead28daSChuck Lever msg.rpc_resp = info->fattr; 77dead28daSChuck Lever status = rpc_call_sync(client, &msg, 0); 783110ff80SHarvey Harrison dprintk("%s: reply getattr: %d\n", __func__, status); 7903c21733SJ. Bruce Fields } 8003c21733SJ. Bruce Fields return status; 8103c21733SJ. Bruce Fields } 8203c21733SJ. Bruce Fields 831da177e4SLinus Torvalds /* 8454ceac45SDavid Howells * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb 851da177e4SLinus Torvalds */ 861da177e4SLinus Torvalds static int 871da177e4SLinus Torvalds nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, 881da177e4SLinus Torvalds struct nfs_fsinfo *info) 891da177e4SLinus Torvalds { 901da177e4SLinus Torvalds int status; 911da177e4SLinus Torvalds 9203c21733SJ. Bruce Fields status = do_proc_get_root(server->client, fhandle, info); 935006a76cSDavid Howells if (status && server->nfs_client->cl_rpcclient != server->client) 945006a76cSDavid Howells status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info); 951da177e4SLinus Torvalds return status; 961da177e4SLinus Torvalds } 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds /* 991da177e4SLinus Torvalds * One function for each procedure in the NFS protocol. 1001da177e4SLinus Torvalds */ 1011da177e4SLinus Torvalds static int 1021da177e4SLinus Torvalds nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, 1031775fd3eSDavid Quigley struct nfs_fattr *fattr, struct nfs4_label *label) 1041da177e4SLinus Torvalds { 105dead28daSChuck Lever struct rpc_message msg = { 106dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], 107dead28daSChuck Lever .rpc_argp = fhandle, 108dead28daSChuck Lever .rpc_resp = fattr, 109dead28daSChuck Lever }; 1101da177e4SLinus Torvalds int status; 1111da177e4SLinus Torvalds 1121da177e4SLinus Torvalds dprintk("NFS call getattr\n"); 1130e574af1STrond Myklebust nfs_fattr_init(fattr); 114dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 1151da177e4SLinus Torvalds dprintk("NFS reply getattr: %d\n", status); 1161da177e4SLinus Torvalds return status; 1171da177e4SLinus Torvalds } 1181da177e4SLinus Torvalds 1191da177e4SLinus Torvalds static int 1201da177e4SLinus Torvalds nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, 1211da177e4SLinus Torvalds struct iattr *sattr) 1221da177e4SLinus Torvalds { 1231da177e4SLinus Torvalds struct inode *inode = dentry->d_inode; 1241da177e4SLinus Torvalds struct nfs3_sattrargs arg = { 1251da177e4SLinus Torvalds .fh = NFS_FH(inode), 1261da177e4SLinus Torvalds .sattr = sattr, 1271da177e4SLinus Torvalds }; 128dead28daSChuck Lever struct rpc_message msg = { 129dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], 130dead28daSChuck Lever .rpc_argp = &arg, 131dead28daSChuck Lever .rpc_resp = fattr, 132dead28daSChuck Lever }; 1331da177e4SLinus Torvalds int status; 1341da177e4SLinus Torvalds 1351da177e4SLinus Torvalds dprintk("NFS call setattr\n"); 136659bfcd6STrond Myklebust if (sattr->ia_valid & ATTR_FILE) 137659bfcd6STrond Myklebust msg.rpc_cred = nfs_file_cred(sattr->ia_file); 1380e574af1STrond Myklebust nfs_fattr_init(fattr); 139dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 14065e4308dSTrond Myklebust if (status == 0) 141f044636dSTrond Myklebust nfs_setattr_update_inode(inode, sattr, fattr); 1421da177e4SLinus Torvalds dprintk("NFS reply setattr: %d\n", status); 1431da177e4SLinus Torvalds return status; 1441da177e4SLinus Torvalds } 1451da177e4SLinus Torvalds 1461da177e4SLinus Torvalds static int 14780a16b21SBryan Schumaker nfs3_proc_lookup(struct inode *dir, struct qstr *name, 1481775fd3eSDavid Quigley struct nfs_fh *fhandle, struct nfs_fattr *fattr, 1491775fd3eSDavid Quigley struct nfs4_label *label) 1501da177e4SLinus Torvalds { 1511da177e4SLinus Torvalds struct nfs3_diropargs arg = { 1521da177e4SLinus Torvalds .fh = NFS_FH(dir), 1531da177e4SLinus Torvalds .name = name->name, 1541da177e4SLinus Torvalds .len = name->len 1551da177e4SLinus Torvalds }; 1561da177e4SLinus Torvalds struct nfs3_diropres res = { 1571da177e4SLinus Torvalds .fh = fhandle, 1581da177e4SLinus Torvalds .fattr = fattr 1591da177e4SLinus Torvalds }; 160dead28daSChuck Lever struct rpc_message msg = { 161dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], 162dead28daSChuck Lever .rpc_argp = &arg, 163dead28daSChuck Lever .rpc_resp = &res, 164dead28daSChuck Lever }; 1651da177e4SLinus Torvalds int status; 1661da177e4SLinus Torvalds 1671da177e4SLinus Torvalds dprintk("NFS call lookup %s\n", name->name); 168e1fb4d05STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 169e1fb4d05STrond Myklebust if (res.dir_attr == NULL) 170e1fb4d05STrond Myklebust return -ENOMEM; 171e1fb4d05STrond Myklebust 1720e574af1STrond Myklebust nfs_fattr_init(fattr); 173dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 174e1fb4d05STrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 175dead28daSChuck Lever if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { 176dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 177dead28daSChuck Lever msg.rpc_argp = fhandle; 178dead28daSChuck Lever msg.rpc_resp = fattr; 179dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 180dead28daSChuck Lever } 181e1fb4d05STrond Myklebust nfs_free_fattr(res.dir_attr); 1821da177e4SLinus Torvalds dprintk("NFS reply lookup: %d\n", status); 1831da177e4SLinus Torvalds return status; 1841da177e4SLinus Torvalds } 1851da177e4SLinus Torvalds 1861da177e4SLinus Torvalds static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) 1871da177e4SLinus Torvalds { 1881da177e4SLinus Torvalds struct nfs3_accessargs arg = { 1891da177e4SLinus Torvalds .fh = NFS_FH(inode), 1901da177e4SLinus Torvalds }; 191c407d41aSTrond Myklebust struct nfs3_accessres res; 1921da177e4SLinus Torvalds struct rpc_message msg = { 1931da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], 1941da177e4SLinus Torvalds .rpc_argp = &arg, 1951da177e4SLinus Torvalds .rpc_resp = &res, 196dead28daSChuck Lever .rpc_cred = entry->cred, 1971da177e4SLinus Torvalds }; 1981da177e4SLinus Torvalds int mode = entry->mask; 199c407d41aSTrond Myklebust int status = -ENOMEM; 2001da177e4SLinus Torvalds 2011da177e4SLinus Torvalds dprintk("NFS call access\n"); 2021da177e4SLinus Torvalds 2031da177e4SLinus Torvalds if (mode & MAY_READ) 2041da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_READ; 2051da177e4SLinus Torvalds if (S_ISDIR(inode->i_mode)) { 2061da177e4SLinus Torvalds if (mode & MAY_WRITE) 2071da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; 2081da177e4SLinus Torvalds if (mode & MAY_EXEC) 2091da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_LOOKUP; 2101da177e4SLinus Torvalds } else { 2111da177e4SLinus Torvalds if (mode & MAY_WRITE) 2121da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; 2131da177e4SLinus Torvalds if (mode & MAY_EXEC) 2141da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_EXECUTE; 2151da177e4SLinus Torvalds } 216c407d41aSTrond Myklebust 217c407d41aSTrond Myklebust res.fattr = nfs_alloc_fattr(); 218c407d41aSTrond Myklebust if (res.fattr == NULL) 219c407d41aSTrond Myklebust goto out; 220c407d41aSTrond Myklebust 2211da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 222c407d41aSTrond Myklebust nfs_refresh_inode(inode, res.fattr); 2231da177e4SLinus Torvalds if (status == 0) { 2241da177e4SLinus Torvalds entry->mask = 0; 2251da177e4SLinus Torvalds if (res.access & NFS3_ACCESS_READ) 2261da177e4SLinus Torvalds entry->mask |= MAY_READ; 2271da177e4SLinus Torvalds if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE)) 2281da177e4SLinus Torvalds entry->mask |= MAY_WRITE; 2291da177e4SLinus Torvalds if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE)) 2301da177e4SLinus Torvalds entry->mask |= MAY_EXEC; 2311da177e4SLinus Torvalds } 232c407d41aSTrond Myklebust nfs_free_fattr(res.fattr); 233c407d41aSTrond Myklebust out: 2341da177e4SLinus Torvalds dprintk("NFS reply access: %d\n", status); 2351da177e4SLinus Torvalds return status; 2361da177e4SLinus Torvalds } 2371da177e4SLinus Torvalds 2381da177e4SLinus Torvalds static int nfs3_proc_readlink(struct inode *inode, struct page *page, 2391da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 2401da177e4SLinus Torvalds { 2413b14d654STrond Myklebust struct nfs_fattr *fattr; 2421da177e4SLinus Torvalds struct nfs3_readlinkargs args = { 2431da177e4SLinus Torvalds .fh = NFS_FH(inode), 2441da177e4SLinus Torvalds .pgbase = pgbase, 2451da177e4SLinus Torvalds .pglen = pglen, 2461da177e4SLinus Torvalds .pages = &page 2471da177e4SLinus Torvalds }; 248dead28daSChuck Lever struct rpc_message msg = { 249dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], 250dead28daSChuck Lever .rpc_argp = &args, 251dead28daSChuck Lever }; 2523b14d654STrond Myklebust int status = -ENOMEM; 2531da177e4SLinus Torvalds 2541da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 2553b14d654STrond Myklebust fattr = nfs_alloc_fattr(); 2563b14d654STrond Myklebust if (fattr == NULL) 2573b14d654STrond Myklebust goto out; 2583b14d654STrond Myklebust msg.rpc_resp = fattr; 2593b14d654STrond Myklebust 260dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2613b14d654STrond Myklebust nfs_refresh_inode(inode, fattr); 2623b14d654STrond Myklebust nfs_free_fattr(fattr); 2633b14d654STrond Myklebust out: 2641da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 2651da177e4SLinus Torvalds return status; 2661da177e4SLinus Torvalds } 2671da177e4SLinus Torvalds 2680b4aae7aSTrond Myklebust struct nfs3_createdata { 2690b4aae7aSTrond Myklebust struct rpc_message msg; 2700b4aae7aSTrond Myklebust union { 2710b4aae7aSTrond Myklebust struct nfs3_createargs create; 2720b4aae7aSTrond Myklebust struct nfs3_mkdirargs mkdir; 2730b4aae7aSTrond Myklebust struct nfs3_symlinkargs symlink; 2740b4aae7aSTrond Myklebust struct nfs3_mknodargs mknod; 2750b4aae7aSTrond Myklebust } arg; 2760b4aae7aSTrond Myklebust struct nfs3_diropres res; 2770b4aae7aSTrond Myklebust struct nfs_fh fh; 2780b4aae7aSTrond Myklebust struct nfs_fattr fattr; 2790b4aae7aSTrond Myklebust struct nfs_fattr dir_attr; 2800b4aae7aSTrond Myklebust }; 2810b4aae7aSTrond Myklebust 2820b4aae7aSTrond Myklebust static struct nfs3_createdata *nfs3_alloc_createdata(void) 2830b4aae7aSTrond Myklebust { 2840b4aae7aSTrond Myklebust struct nfs3_createdata *data; 2850b4aae7aSTrond Myklebust 2860b4aae7aSTrond Myklebust data = kzalloc(sizeof(*data), GFP_KERNEL); 2870b4aae7aSTrond Myklebust if (data != NULL) { 2880b4aae7aSTrond Myklebust data->msg.rpc_argp = &data->arg; 2890b4aae7aSTrond Myklebust data->msg.rpc_resp = &data->res; 2900b4aae7aSTrond Myklebust data->res.fh = &data->fh; 2910b4aae7aSTrond Myklebust data->res.fattr = &data->fattr; 2920b4aae7aSTrond Myklebust data->res.dir_attr = &data->dir_attr; 2930b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 2940b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 2950b4aae7aSTrond Myklebust } 2960b4aae7aSTrond Myklebust return data; 2970b4aae7aSTrond Myklebust } 2980b4aae7aSTrond Myklebust 2990b4aae7aSTrond Myklebust static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) 3000b4aae7aSTrond Myklebust { 3010b4aae7aSTrond Myklebust int status; 3020b4aae7aSTrond Myklebust 3030b4aae7aSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); 3040b4aae7aSTrond Myklebust nfs_post_op_update_inode(dir, data->res.dir_attr); 3050b4aae7aSTrond Myklebust if (status == 0) 3061775fd3eSDavid Quigley status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL); 3070b4aae7aSTrond Myklebust return status; 3080b4aae7aSTrond Myklebust } 3090b4aae7aSTrond Myklebust 3100b4aae7aSTrond Myklebust static void nfs3_free_createdata(struct nfs3_createdata *data) 3110b4aae7aSTrond Myklebust { 3120b4aae7aSTrond Myklebust kfree(data); 3130b4aae7aSTrond Myklebust } 3140b4aae7aSTrond Myklebust 3151da177e4SLinus Torvalds /* 3161da177e4SLinus Torvalds * Create a regular file. 3171da177e4SLinus Torvalds */ 3181da177e4SLinus Torvalds static int 3191da177e4SLinus Torvalds nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 3208867fe58SMiklos Szeredi int flags) 3211da177e4SLinus Torvalds { 322013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 3230b4aae7aSTrond Myklebust struct nfs3_createdata *data; 3240b4aae7aSTrond Myklebust int status = -ENOMEM; 3251da177e4SLinus Torvalds 3266de1472fSAl Viro dprintk("NFS call create %pd\n", dentry); 3270b4aae7aSTrond Myklebust 3280b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 3290b4aae7aSTrond Myklebust if (data == NULL) 3300b4aae7aSTrond Myklebust goto out; 3310b4aae7aSTrond Myklebust 3320b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; 3330b4aae7aSTrond Myklebust data->arg.create.fh = NFS_FH(dir); 3340b4aae7aSTrond Myklebust data->arg.create.name = dentry->d_name.name; 3350b4aae7aSTrond Myklebust data->arg.create.len = dentry->d_name.len; 3360b4aae7aSTrond Myklebust data->arg.create.sattr = sattr; 3370b4aae7aSTrond Myklebust 3380b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3391da177e4SLinus Torvalds if (flags & O_EXCL) { 3400b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; 341a9943d11STrond Myklebust data->arg.create.verifier[0] = cpu_to_be32(jiffies); 342a9943d11STrond Myklebust data->arg.create.verifier[1] = cpu_to_be32(current->pid); 3431da177e4SLinus Torvalds } 3441da177e4SLinus Torvalds 345013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 346013cdf10SChristoph Hellwig if (status) 347013cdf10SChristoph Hellwig goto out; 348055ffbeaSAndreas Gruenbacher 3490b4aae7aSTrond Myklebust for (;;) { 3500b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 3511da177e4SLinus Torvalds 3520b4aae7aSTrond Myklebust if (status != -ENOTSUPP) 3530b4aae7aSTrond Myklebust break; 3540b4aae7aSTrond Myklebust /* If the server doesn't support the exclusive creation 3550b4aae7aSTrond Myklebust * semantics, try again with simple 'guarded' mode. */ 3560b4aae7aSTrond Myklebust switch (data->arg.create.createmode) { 3571da177e4SLinus Torvalds case NFS3_CREATE_EXCLUSIVE: 3580b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_GUARDED; 3591da177e4SLinus Torvalds break; 3601da177e4SLinus Torvalds 3611da177e4SLinus Torvalds case NFS3_CREATE_GUARDED: 3620b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3631da177e4SLinus Torvalds break; 3641da177e4SLinus Torvalds 3651da177e4SLinus Torvalds case NFS3_CREATE_UNCHECKED: 3661da177e4SLinus Torvalds goto out; 3671da177e4SLinus Torvalds } 3680b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 3690b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 3701da177e4SLinus Torvalds } 3711da177e4SLinus Torvalds 3721da177e4SLinus Torvalds if (status != 0) 373013cdf10SChristoph Hellwig goto out_release_acls; 3741da177e4SLinus Torvalds 3751da177e4SLinus Torvalds /* When we created the file with exclusive semantics, make 3761da177e4SLinus Torvalds * sure we set the attributes afterwards. */ 3770b4aae7aSTrond Myklebust if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { 3781da177e4SLinus Torvalds dprintk("NFS call setattr (post-create)\n"); 3791da177e4SLinus Torvalds 3801da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_ATIME_SET)) 3811da177e4SLinus Torvalds sattr->ia_valid |= ATTR_ATIME; 3821da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_MTIME_SET)) 3831da177e4SLinus Torvalds sattr->ia_valid |= ATTR_MTIME; 3841da177e4SLinus Torvalds 3851da177e4SLinus Torvalds /* Note: we could use a guarded setattr here, but I'm 3861da177e4SLinus Torvalds * not sure this buys us anything (and I'd have 3871da177e4SLinus Torvalds * to revamp the NFSv3 XDR code) */ 3880b4aae7aSTrond Myklebust status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); 3890b4aae7aSTrond Myklebust nfs_post_op_update_inode(dentry->d_inode, data->res.fattr); 3901da177e4SLinus Torvalds dprintk("NFS reply setattr (post-create): %d\n", status); 391055ffbeaSAndreas Gruenbacher if (status != 0) 392013cdf10SChristoph Hellwig goto out_release_acls; 3930b4aae7aSTrond Myklebust } 394013cdf10SChristoph Hellwig 395013cdf10SChristoph Hellwig status = nfs3_proc_setacls(dentry->d_inode, acl, default_acl); 396013cdf10SChristoph Hellwig 397013cdf10SChristoph Hellwig out_release_acls: 398013cdf10SChristoph Hellwig posix_acl_release(acl); 399013cdf10SChristoph Hellwig posix_acl_release(default_acl); 4001da177e4SLinus Torvalds out: 4010b4aae7aSTrond Myklebust nfs3_free_createdata(data); 4021da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 4031da177e4SLinus Torvalds return status; 4041da177e4SLinus Torvalds } 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds static int 4071da177e4SLinus Torvalds nfs3_proc_remove(struct inode *dir, struct qstr *name) 4081da177e4SLinus Torvalds { 4094fdc17b2STrond Myklebust struct nfs_removeargs arg = { 4101da177e4SLinus Torvalds .fh = NFS_FH(dir), 41126fe5750SLinus Torvalds .name = *name, 4121da177e4SLinus Torvalds }; 4134fdc17b2STrond Myklebust struct nfs_removeres res; 4141da177e4SLinus Torvalds struct rpc_message msg = { 4151da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], 4161da177e4SLinus Torvalds .rpc_argp = &arg, 4174fdc17b2STrond Myklebust .rpc_resp = &res, 4181da177e4SLinus Torvalds }; 419d346890bSTrond Myklebust int status = -ENOMEM; 4201da177e4SLinus Torvalds 4211da177e4SLinus Torvalds dprintk("NFS call remove %s\n", name->name); 422d346890bSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 423d346890bSTrond Myklebust if (res.dir_attr == NULL) 424d346890bSTrond Myklebust goto out; 425d346890bSTrond Myklebust 4261da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 427d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 428d346890bSTrond Myklebust nfs_free_fattr(res.dir_attr); 429d346890bSTrond Myklebust out: 4301da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 4311da177e4SLinus Torvalds return status; 4321da177e4SLinus Torvalds } 4331da177e4SLinus Torvalds 434e4eff1a6STrond Myklebust static void 435e4eff1a6STrond Myklebust nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) 4361da177e4SLinus Torvalds { 4371da177e4SLinus Torvalds msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; 4381da177e4SLinus Torvalds } 4391da177e4SLinus Torvalds 44034e137ccSBryan Schumaker static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data) 44134e137ccSBryan Schumaker { 44234e137ccSBryan Schumaker rpc_call_start(task); 44334e137ccSBryan Schumaker } 44434e137ccSBryan Schumaker 4451da177e4SLinus Torvalds static int 446e4eff1a6STrond Myklebust nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) 4471da177e4SLinus Torvalds { 448e4eff1a6STrond Myklebust struct nfs_removeres *res; 449e4eff1a6STrond Myklebust if (nfs3_async_handle_jukebox(task, dir)) 4501da177e4SLinus Torvalds return 0; 451e4eff1a6STrond Myklebust res = task->tk_msg.rpc_resp; 452d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res->dir_attr); 453e4eff1a6STrond Myklebust return 1; 4541da177e4SLinus Torvalds } 4551da177e4SLinus Torvalds 456d3d4152aSJeff Layton static void 457d3d4152aSJeff Layton nfs3_proc_rename_setup(struct rpc_message *msg, struct inode *dir) 458d3d4152aSJeff Layton { 459d3d4152aSJeff Layton msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME]; 460d3d4152aSJeff Layton } 461d3d4152aSJeff Layton 462c6bfa1a1SBryan Schumaker static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data) 463c6bfa1a1SBryan Schumaker { 464c6bfa1a1SBryan Schumaker rpc_call_start(task); 465c6bfa1a1SBryan Schumaker } 466c6bfa1a1SBryan Schumaker 467d3d4152aSJeff Layton static int 468d3d4152aSJeff Layton nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir, 469d3d4152aSJeff Layton struct inode *new_dir) 470d3d4152aSJeff Layton { 471d3d4152aSJeff Layton struct nfs_renameres *res; 472d3d4152aSJeff Layton 473d3d4152aSJeff Layton if (nfs3_async_handle_jukebox(task, old_dir)) 474d3d4152aSJeff Layton return 0; 475d3d4152aSJeff Layton res = task->tk_msg.rpc_resp; 476d3d4152aSJeff Layton 477d3d4152aSJeff Layton nfs_post_op_update_inode(old_dir, res->old_fattr); 478d3d4152aSJeff Layton nfs_post_op_update_inode(new_dir, res->new_fattr); 479d3d4152aSJeff Layton return 1; 480d3d4152aSJeff Layton } 481d3d4152aSJeff Layton 4821da177e4SLinus Torvalds static int 4831da177e4SLinus Torvalds nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) 4841da177e4SLinus Torvalds { 4851da177e4SLinus Torvalds struct nfs3_linkargs arg = { 4861da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 4871da177e4SLinus Torvalds .tofh = NFS_FH(dir), 4881da177e4SLinus Torvalds .toname = name->name, 4891da177e4SLinus Torvalds .tolen = name->len 4901da177e4SLinus Torvalds }; 491136f2627STrond Myklebust struct nfs3_linkres res; 492dead28daSChuck Lever struct rpc_message msg = { 493dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], 494dead28daSChuck Lever .rpc_argp = &arg, 495dead28daSChuck Lever .rpc_resp = &res, 496dead28daSChuck Lever }; 497136f2627STrond Myklebust int status = -ENOMEM; 4981da177e4SLinus Torvalds 4991da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 500136f2627STrond Myklebust res.fattr = nfs_alloc_fattr(); 501136f2627STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 502136f2627STrond Myklebust if (res.fattr == NULL || res.dir_attr == NULL) 503136f2627STrond Myklebust goto out; 504136f2627STrond Myklebust 505dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 506136f2627STrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 507136f2627STrond Myklebust nfs_post_op_update_inode(inode, res.fattr); 508136f2627STrond Myklebust out: 509136f2627STrond Myklebust nfs_free_fattr(res.dir_attr); 510136f2627STrond Myklebust nfs_free_fattr(res.fattr); 5111da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 5121da177e4SLinus Torvalds return status; 5131da177e4SLinus Torvalds } 5141da177e4SLinus Torvalds 5151da177e4SLinus Torvalds static int 51694a6d753SChuck Lever nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, 51794a6d753SChuck Lever unsigned int len, struct iattr *sattr) 5181da177e4SLinus Torvalds { 5190b4aae7aSTrond Myklebust struct nfs3_createdata *data; 5200b4aae7aSTrond Myklebust int status = -ENOMEM; 5211da177e4SLinus Torvalds 52294a6d753SChuck Lever if (len > NFS3_MAXPATHLEN) 5231da177e4SLinus Torvalds return -ENAMETOOLONG; 5244f390c15SChuck Lever 5256de1472fSAl Viro dprintk("NFS call symlink %pd\n", dentry); 52694a6d753SChuck Lever 5270b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5280b4aae7aSTrond Myklebust if (data == NULL) 5294f390c15SChuck Lever goto out; 5300b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; 5310b4aae7aSTrond Myklebust data->arg.symlink.fromfh = NFS_FH(dir); 5320b4aae7aSTrond Myklebust data->arg.symlink.fromname = dentry->d_name.name; 5330b4aae7aSTrond Myklebust data->arg.symlink.fromlen = dentry->d_name.len; 5340b4aae7aSTrond Myklebust data->arg.symlink.pages = &page; 5350b4aae7aSTrond Myklebust data->arg.symlink.pathlen = len; 5360b4aae7aSTrond Myklebust data->arg.symlink.sattr = sattr; 5370b4aae7aSTrond Myklebust 5380b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 5390b4aae7aSTrond Myklebust 5400b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5414f390c15SChuck Lever out: 5421da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 5431da177e4SLinus Torvalds return status; 5441da177e4SLinus Torvalds } 5451da177e4SLinus Torvalds 5461da177e4SLinus Torvalds static int 5471da177e4SLinus Torvalds nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 5481da177e4SLinus Torvalds { 549013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 5500b4aae7aSTrond Myklebust struct nfs3_createdata *data; 5510b4aae7aSTrond Myklebust int status = -ENOMEM; 5521da177e4SLinus Torvalds 5536de1472fSAl Viro dprintk("NFS call mkdir %pd\n", dentry); 554055ffbeaSAndreas Gruenbacher 5550b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5560b4aae7aSTrond Myklebust if (data == NULL) 5570b4aae7aSTrond Myklebust goto out; 5580b4aae7aSTrond Myklebust 559013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 560013cdf10SChristoph Hellwig if (status) 561013cdf10SChristoph Hellwig goto out; 562013cdf10SChristoph Hellwig 5630b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; 5640b4aae7aSTrond Myklebust data->arg.mkdir.fh = NFS_FH(dir); 5650b4aae7aSTrond Myklebust data->arg.mkdir.name = dentry->d_name.name; 5660b4aae7aSTrond Myklebust data->arg.mkdir.len = dentry->d_name.len; 5670b4aae7aSTrond Myklebust data->arg.mkdir.sattr = sattr; 5680b4aae7aSTrond Myklebust 5690b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 570055ffbeaSAndreas Gruenbacher if (status != 0) 571013cdf10SChristoph Hellwig goto out_release_acls; 5720b4aae7aSTrond Myklebust 573013cdf10SChristoph Hellwig status = nfs3_proc_setacls(dentry->d_inode, acl, default_acl); 574013cdf10SChristoph Hellwig 575013cdf10SChristoph Hellwig out_release_acls: 576013cdf10SChristoph Hellwig posix_acl_release(acl); 577013cdf10SChristoph Hellwig posix_acl_release(default_acl); 578055ffbeaSAndreas Gruenbacher out: 5790b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5801da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 5811da177e4SLinus Torvalds return status; 5821da177e4SLinus Torvalds } 5831da177e4SLinus Torvalds 5841da177e4SLinus Torvalds static int 5851da177e4SLinus Torvalds nfs3_proc_rmdir(struct inode *dir, struct qstr *name) 5861da177e4SLinus Torvalds { 58739967ddfSTrond Myklebust struct nfs_fattr *dir_attr; 5881da177e4SLinus Torvalds struct nfs3_diropargs arg = { 5891da177e4SLinus Torvalds .fh = NFS_FH(dir), 5901da177e4SLinus Torvalds .name = name->name, 5911da177e4SLinus Torvalds .len = name->len 5921da177e4SLinus Torvalds }; 593dead28daSChuck Lever struct rpc_message msg = { 594dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], 595dead28daSChuck Lever .rpc_argp = &arg, 596dead28daSChuck Lever }; 59739967ddfSTrond Myklebust int status = -ENOMEM; 5981da177e4SLinus Torvalds 5991da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 60039967ddfSTrond Myklebust dir_attr = nfs_alloc_fattr(); 60139967ddfSTrond Myklebust if (dir_attr == NULL) 60239967ddfSTrond Myklebust goto out; 60339967ddfSTrond Myklebust 60439967ddfSTrond Myklebust msg.rpc_resp = dir_attr; 605dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 60639967ddfSTrond Myklebust nfs_post_op_update_inode(dir, dir_attr); 60739967ddfSTrond Myklebust nfs_free_fattr(dir_attr); 60839967ddfSTrond Myklebust out: 6091da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 6101da177e4SLinus Torvalds return status; 6111da177e4SLinus Torvalds } 6121da177e4SLinus Torvalds 6131da177e4SLinus Torvalds /* 6141da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass the user buffer 6151da177e4SLinus Torvalds * to the encode function, which installs it in the receive iovec. 6161da177e4SLinus Torvalds * The decode function itself doesn't perform any decoding, it just makes 6171da177e4SLinus Torvalds * sure the reply is syntactically correct. 6181da177e4SLinus Torvalds * 6191da177e4SLinus Torvalds * Also note that this implementation handles both plain readdir and 6201da177e4SLinus Torvalds * readdirplus. 6211da177e4SLinus Torvalds */ 6221da177e4SLinus Torvalds static int 6231da177e4SLinus Torvalds nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, 62456e4ebf8SBryan Schumaker u64 cookie, struct page **pages, unsigned int count, int plus) 6251da177e4SLinus Torvalds { 6261da177e4SLinus Torvalds struct inode *dir = dentry->d_inode; 627c3f52af3STrond Myklebust __be32 *verf = NFS_I(dir)->cookieverf; 6281da177e4SLinus Torvalds struct nfs3_readdirargs arg = { 6291da177e4SLinus Torvalds .fh = NFS_FH(dir), 6301da177e4SLinus Torvalds .cookie = cookie, 6311da177e4SLinus Torvalds .verf = {verf[0], verf[1]}, 6321da177e4SLinus Torvalds .plus = plus, 6331da177e4SLinus Torvalds .count = count, 63456e4ebf8SBryan Schumaker .pages = pages 6351da177e4SLinus Torvalds }; 6361da177e4SLinus Torvalds struct nfs3_readdirres res = { 6371da177e4SLinus Torvalds .verf = verf, 6381da177e4SLinus Torvalds .plus = plus 6391da177e4SLinus Torvalds }; 6401da177e4SLinus Torvalds struct rpc_message msg = { 6411da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], 6421da177e4SLinus Torvalds .rpc_argp = &arg, 6431da177e4SLinus Torvalds .rpc_resp = &res, 6441da177e4SLinus Torvalds .rpc_cred = cred 6451da177e4SLinus Torvalds }; 646aa49b4cfSTrond Myklebust int status = -ENOMEM; 6471da177e4SLinus Torvalds 6481da177e4SLinus Torvalds if (plus) 6491da177e4SLinus Torvalds msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; 6501da177e4SLinus Torvalds 6511da177e4SLinus Torvalds dprintk("NFS call readdir%s %d\n", 6521da177e4SLinus Torvalds plus? "plus" : "", (unsigned int) cookie); 6531da177e4SLinus Torvalds 654aa49b4cfSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 655aa49b4cfSTrond Myklebust if (res.dir_attr == NULL) 656aa49b4cfSTrond Myklebust goto out; 657aa49b4cfSTrond Myklebust 6581da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 659c4812998STrond Myklebust 660c4812998STrond Myklebust nfs_invalidate_atime(dir); 661aa49b4cfSTrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 662c4812998STrond Myklebust 663aa49b4cfSTrond Myklebust nfs_free_fattr(res.dir_attr); 664aa49b4cfSTrond Myklebust out: 665d141d974SChuck Lever dprintk("NFS reply readdir%s: %d\n", 666d141d974SChuck Lever plus? "plus" : "", status); 6671da177e4SLinus Torvalds return status; 6681da177e4SLinus Torvalds } 6691da177e4SLinus Torvalds 6701da177e4SLinus Torvalds static int 6711da177e4SLinus Torvalds nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 6721da177e4SLinus Torvalds dev_t rdev) 6731da177e4SLinus Torvalds { 674013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 6750b4aae7aSTrond Myklebust struct nfs3_createdata *data; 6760b4aae7aSTrond Myklebust int status = -ENOMEM; 6771da177e4SLinus Torvalds 6786de1472fSAl Viro dprintk("NFS call mknod %pd %u:%u\n", dentry, 6791da177e4SLinus Torvalds MAJOR(rdev), MINOR(rdev)); 680055ffbeaSAndreas Gruenbacher 6810b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 6820b4aae7aSTrond Myklebust if (data == NULL) 683055ffbeaSAndreas Gruenbacher goto out; 6840b4aae7aSTrond Myklebust 685013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 686013cdf10SChristoph Hellwig if (status) 687013cdf10SChristoph Hellwig goto out; 688013cdf10SChristoph Hellwig 6890b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; 6900b4aae7aSTrond Myklebust data->arg.mknod.fh = NFS_FH(dir); 6910b4aae7aSTrond Myklebust data->arg.mknod.name = dentry->d_name.name; 6920b4aae7aSTrond Myklebust data->arg.mknod.len = dentry->d_name.len; 6930b4aae7aSTrond Myklebust data->arg.mknod.sattr = sattr; 6940b4aae7aSTrond Myklebust data->arg.mknod.rdev = rdev; 6950b4aae7aSTrond Myklebust 6960b4aae7aSTrond Myklebust switch (sattr->ia_mode & S_IFMT) { 6970b4aae7aSTrond Myklebust case S_IFBLK: 6980b4aae7aSTrond Myklebust data->arg.mknod.type = NF3BLK; 6990b4aae7aSTrond Myklebust break; 7000b4aae7aSTrond Myklebust case S_IFCHR: 7010b4aae7aSTrond Myklebust data->arg.mknod.type = NF3CHR; 7020b4aae7aSTrond Myklebust break; 7030b4aae7aSTrond Myklebust case S_IFIFO: 7040b4aae7aSTrond Myklebust data->arg.mknod.type = NF3FIFO; 7050b4aae7aSTrond Myklebust break; 7060b4aae7aSTrond Myklebust case S_IFSOCK: 7070b4aae7aSTrond Myklebust data->arg.mknod.type = NF3SOCK; 7080b4aae7aSTrond Myklebust break; 7090b4aae7aSTrond Myklebust default: 7100b4aae7aSTrond Myklebust status = -EINVAL; 7110b4aae7aSTrond Myklebust goto out; 7120b4aae7aSTrond Myklebust } 7130b4aae7aSTrond Myklebust 7140b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 715055ffbeaSAndreas Gruenbacher if (status != 0) 716013cdf10SChristoph Hellwig goto out_release_acls; 717013cdf10SChristoph Hellwig 718013cdf10SChristoph Hellwig status = nfs3_proc_setacls(dentry->d_inode, acl, default_acl); 719013cdf10SChristoph Hellwig 720013cdf10SChristoph Hellwig out_release_acls: 721013cdf10SChristoph Hellwig posix_acl_release(acl); 722013cdf10SChristoph Hellwig posix_acl_release(default_acl); 723055ffbeaSAndreas Gruenbacher out: 7240b4aae7aSTrond Myklebust nfs3_free_createdata(data); 7251da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 7261da177e4SLinus Torvalds return status; 7271da177e4SLinus Torvalds } 7281da177e4SLinus Torvalds 7291da177e4SLinus Torvalds static int 7301da177e4SLinus Torvalds nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 7311da177e4SLinus Torvalds struct nfs_fsstat *stat) 7321da177e4SLinus Torvalds { 733dead28daSChuck Lever struct rpc_message msg = { 734dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], 735dead28daSChuck Lever .rpc_argp = fhandle, 736dead28daSChuck Lever .rpc_resp = stat, 737dead28daSChuck Lever }; 7381da177e4SLinus Torvalds int status; 7391da177e4SLinus Torvalds 7401da177e4SLinus Torvalds dprintk("NFS call fsstat\n"); 7410e574af1STrond Myklebust nfs_fattr_init(stat->fattr); 742dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 743d141d974SChuck Lever dprintk("NFS reply fsstat: %d\n", status); 7441da177e4SLinus Torvalds return status; 7451da177e4SLinus Torvalds } 7461da177e4SLinus Torvalds 7471da177e4SLinus Torvalds static int 74837ca8f5cSEG Keizer do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle, 7491da177e4SLinus Torvalds struct nfs_fsinfo *info) 7501da177e4SLinus Torvalds { 751dead28daSChuck Lever struct rpc_message msg = { 752dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 753dead28daSChuck Lever .rpc_argp = fhandle, 754dead28daSChuck Lever .rpc_resp = info, 755dead28daSChuck Lever }; 7561da177e4SLinus Torvalds int status; 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 7590e574af1STrond Myklebust nfs_fattr_init(info->fattr); 76037ca8f5cSEG Keizer status = rpc_call_sync(client, &msg, 0); 7611da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 7621da177e4SLinus Torvalds return status; 7631da177e4SLinus Torvalds } 7641da177e4SLinus Torvalds 76537ca8f5cSEG Keizer /* 76637ca8f5cSEG Keizer * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via 76737ca8f5cSEG Keizer * nfs_create_server 76837ca8f5cSEG Keizer */ 76937ca8f5cSEG Keizer static int 77037ca8f5cSEG Keizer nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 77137ca8f5cSEG Keizer struct nfs_fsinfo *info) 77237ca8f5cSEG Keizer { 77337ca8f5cSEG Keizer int status; 77437ca8f5cSEG Keizer 77537ca8f5cSEG Keizer status = do_proc_fsinfo(server->client, fhandle, info); 77637ca8f5cSEG Keizer if (status && server->nfs_client->cl_rpcclient != server->client) 77737ca8f5cSEG Keizer status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); 77837ca8f5cSEG Keizer return status; 77937ca8f5cSEG Keizer } 78037ca8f5cSEG Keizer 7811da177e4SLinus Torvalds static int 7821da177e4SLinus Torvalds nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 7831da177e4SLinus Torvalds struct nfs_pathconf *info) 7841da177e4SLinus Torvalds { 785dead28daSChuck Lever struct rpc_message msg = { 786dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], 787dead28daSChuck Lever .rpc_argp = fhandle, 788dead28daSChuck Lever .rpc_resp = info, 789dead28daSChuck Lever }; 7901da177e4SLinus Torvalds int status; 7911da177e4SLinus Torvalds 7921da177e4SLinus Torvalds dprintk("NFS call pathconf\n"); 7930e574af1STrond Myklebust nfs_fattr_init(info->fattr); 794dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 7951da177e4SLinus Torvalds dprintk("NFS reply pathconf: %d\n", status); 7961da177e4SLinus Torvalds return status; 7971da177e4SLinus Torvalds } 7981da177e4SLinus Torvalds 799d45f60c6SWeston Andros Adamson static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 8001da177e4SLinus Torvalds { 801d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 802cd841605SFred Isaman 80316cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 80416cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 80516cecdf6STrond Myklebust 806cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 807ec06c096STrond Myklebust return -EAGAIN; 8088850df99STrond Myklebust 809cd841605SFred Isaman nfs_invalidate_atime(inode); 810d45f60c6SWeston Andros Adamson nfs_refresh_inode(inode, &hdr->fattr); 811ec06c096STrond Myklebust return 0; 8121da177e4SLinus Torvalds } 8131da177e4SLinus Torvalds 814d45f60c6SWeston Andros Adamson static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr, 815d45f60c6SWeston Andros Adamson struct rpc_message *msg) 8161da177e4SLinus Torvalds { 817bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; 8181da177e4SLinus Torvalds } 8191da177e4SLinus Torvalds 820d45f60c6SWeston Andros Adamson static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task, 821d45f60c6SWeston Andros Adamson struct nfs_pgio_header *hdr) 822ea7c3303SBryan Schumaker { 823ea7c3303SBryan Schumaker rpc_call_start(task); 824ef1820f9SNeilBrown return 0; 825ea7c3303SBryan Schumaker } 826ea7c3303SBryan Schumaker 827d45f60c6SWeston Andros Adamson static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 8281da177e4SLinus Torvalds { 829d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 830cd841605SFred Isaman 83116cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 83216cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 83316cecdf6STrond Myklebust 834cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 835788e7a89STrond Myklebust return -EAGAIN; 8361da177e4SLinus Torvalds if (task->tk_status >= 0) 837a08a8cd3STrond Myklebust nfs_writeback_update_inode(hdr); 838788e7a89STrond Myklebust return 0; 8391da177e4SLinus Torvalds } 8401da177e4SLinus Torvalds 841d45f60c6SWeston Andros Adamson static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr, 842d45f60c6SWeston Andros Adamson struct rpc_message *msg) 8431da177e4SLinus Torvalds { 844bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; 8451da177e4SLinus Torvalds } 8461da177e4SLinus Torvalds 8470b7c0153SFred Isaman static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data) 8480b7c0153SFred Isaman { 8490b7c0153SFred Isaman rpc_call_start(task); 8500b7c0153SFred Isaman } 8510b7c0153SFred Isaman 8520b7c0153SFred Isaman static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data) 8531da177e4SLinus Torvalds { 85416cecdf6STrond Myklebust if (data->commit_done_cb != NULL) 85516cecdf6STrond Myklebust return data->commit_done_cb(task, data); 85616cecdf6STrond Myklebust 857006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 858788e7a89STrond Myklebust return -EAGAIN; 8599e08a3c5STrond Myklebust nfs_refresh_inode(data->inode, data->res.fattr); 860788e7a89STrond Myklebust return 0; 8611da177e4SLinus Torvalds } 8621da177e4SLinus Torvalds 8630b7c0153SFred Isaman static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg) 8641da177e4SLinus Torvalds { 865bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; 8661da177e4SLinus Torvalds } 8671da177e4SLinus Torvalds 8681da177e4SLinus Torvalds static int 8691da177e4SLinus Torvalds nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) 8701da177e4SLinus Torvalds { 871496ad9aaSAl Viro struct inode *inode = file_inode(filp); 8721093a60eSChuck Lever 8731093a60eSChuck Lever return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl); 8741da177e4SLinus Torvalds } 8751da177e4SLinus Torvalds 876011e2a7fSBryan Schumaker static int nfs3_have_delegation(struct inode *inode, fmode_t flags) 877011e2a7fSBryan Schumaker { 878011e2a7fSBryan Schumaker return 0; 879011e2a7fSBryan Schumaker } 880011e2a7fSBryan Schumaker 88157ec14c5SBryan Schumaker static int nfs3_return_delegation(struct inode *inode) 88257ec14c5SBryan Schumaker { 88357ec14c5SBryan Schumaker nfs_wb_all(inode); 88457ec14c5SBryan Schumaker return 0; 88557ec14c5SBryan Schumaker } 88657ec14c5SBryan Schumaker 887ab96291eSBryan Schumaker static const struct inode_operations nfs3_dir_inode_operations = { 888ab96291eSBryan Schumaker .create = nfs_create, 889ab96291eSBryan Schumaker .lookup = nfs_lookup, 890ab96291eSBryan Schumaker .link = nfs_link, 891ab96291eSBryan Schumaker .unlink = nfs_unlink, 892ab96291eSBryan Schumaker .symlink = nfs_symlink, 893ab96291eSBryan Schumaker .mkdir = nfs_mkdir, 894ab96291eSBryan Schumaker .rmdir = nfs_rmdir, 895ab96291eSBryan Schumaker .mknod = nfs_mknod, 896ab96291eSBryan Schumaker .rename = nfs_rename, 897ab96291eSBryan Schumaker .permission = nfs_permission, 898ab96291eSBryan Schumaker .getattr = nfs_getattr, 899ab96291eSBryan Schumaker .setattr = nfs_setattr, 9005f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 90174adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 902013cdf10SChristoph Hellwig .getxattr = generic_getxattr, 903013cdf10SChristoph Hellwig .setxattr = generic_setxattr, 904013cdf10SChristoph Hellwig .removexattr = generic_removexattr, 905013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 906013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 907013cdf10SChristoph Hellwig #endif 908ab96291eSBryan Schumaker }; 909ab96291eSBryan Schumaker 910ab96291eSBryan Schumaker static const struct inode_operations nfs3_file_inode_operations = { 911ab96291eSBryan Schumaker .permission = nfs_permission, 912ab96291eSBryan Schumaker .getattr = nfs_getattr, 913ab96291eSBryan Schumaker .setattr = nfs_setattr, 9145f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 91574adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 916013cdf10SChristoph Hellwig .getxattr = generic_getxattr, 917013cdf10SChristoph Hellwig .setxattr = generic_setxattr, 918013cdf10SChristoph Hellwig .removexattr = generic_removexattr, 919013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 920013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 921013cdf10SChristoph Hellwig #endif 922ab96291eSBryan Schumaker }; 923ab96291eSBryan Schumaker 924509de811SDavid Howells const struct nfs_rpc_ops nfs_v3_clientops = { 9251da177e4SLinus Torvalds .version = 3, /* protocol version */ 9261da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 927b7fa0554SAndreas Gruenbacher .dir_inode_ops = &nfs3_dir_inode_operations, 928b7fa0554SAndreas Gruenbacher .file_inode_ops = &nfs3_file_inode_operations, 9291788ea6eSJeff Layton .file_ops = &nfs_file_operations, 9301da177e4SLinus Torvalds .getroot = nfs3_proc_get_root, 931281cad46SBryan Schumaker .submount = nfs_submount, 932ff9099f2SBryan Schumaker .try_mount = nfs_try_mount, 9331da177e4SLinus Torvalds .getattr = nfs3_proc_getattr, 9341da177e4SLinus Torvalds .setattr = nfs3_proc_setattr, 9351da177e4SLinus Torvalds .lookup = nfs3_proc_lookup, 9361da177e4SLinus Torvalds .access = nfs3_proc_access, 9371da177e4SLinus Torvalds .readlink = nfs3_proc_readlink, 9381da177e4SLinus Torvalds .create = nfs3_proc_create, 9391da177e4SLinus Torvalds .remove = nfs3_proc_remove, 9401da177e4SLinus Torvalds .unlink_setup = nfs3_proc_unlink_setup, 94134e137ccSBryan Schumaker .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare, 9421da177e4SLinus Torvalds .unlink_done = nfs3_proc_unlink_done, 943d3d4152aSJeff Layton .rename_setup = nfs3_proc_rename_setup, 944c6bfa1a1SBryan Schumaker .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare, 945d3d4152aSJeff Layton .rename_done = nfs3_proc_rename_done, 9461da177e4SLinus Torvalds .link = nfs3_proc_link, 9471da177e4SLinus Torvalds .symlink = nfs3_proc_symlink, 9481da177e4SLinus Torvalds .mkdir = nfs3_proc_mkdir, 9491da177e4SLinus Torvalds .rmdir = nfs3_proc_rmdir, 9501da177e4SLinus Torvalds .readdir = nfs3_proc_readdir, 9511da177e4SLinus Torvalds .mknod = nfs3_proc_mknod, 9521da177e4SLinus Torvalds .statfs = nfs3_proc_statfs, 9531da177e4SLinus Torvalds .fsinfo = nfs3_proc_fsinfo, 9541da177e4SLinus Torvalds .pathconf = nfs3_proc_pathconf, 9551da177e4SLinus Torvalds .decode_dirent = nfs3_decode_dirent, 956a4cdda59SAnna Schumaker .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare, 9571da177e4SLinus Torvalds .read_setup = nfs3_proc_read_setup, 958ec06c096STrond Myklebust .read_done = nfs3_read_done, 9591da177e4SLinus Torvalds .write_setup = nfs3_proc_write_setup, 960788e7a89STrond Myklebust .write_done = nfs3_write_done, 9611da177e4SLinus Torvalds .commit_setup = nfs3_proc_commit_setup, 9620b7c0153SFred Isaman .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare, 963788e7a89STrond Myklebust .commit_done = nfs3_commit_done, 9641da177e4SLinus Torvalds .lock = nfs3_proc_lock, 965013cdf10SChristoph Hellwig .clear_acl_cache = forget_all_cached_acls, 9667fe5c398STrond Myklebust .close_context = nfs_close_context, 967011e2a7fSBryan Schumaker .have_delegation = nfs3_have_delegation, 96857ec14c5SBryan Schumaker .return_delegation = nfs3_return_delegation, 9696663ee7fSBryan Schumaker .alloc_client = nfs_alloc_client, 97045a52a02SAndy Adamson .init_client = nfs_init_client, 971cdb7ecedSBryan Schumaker .free_client = nfs_free_client, 9721179acc6SBryan Schumaker .create_server = nfs3_create_server, 9731179acc6SBryan Schumaker .clone_server = nfs3_clone_server, 9741da177e4SLinus Torvalds }; 975