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, 104a841b54dSTrond Myklebust struct nfs_fattr *fattr, struct nfs4_label *label, 105a841b54dSTrond Myklebust struct inode *inode) 1061da177e4SLinus Torvalds { 107dead28daSChuck Lever struct rpc_message msg = { 108dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], 109dead28daSChuck Lever .rpc_argp = fhandle, 110dead28daSChuck Lever .rpc_resp = fattr, 111dead28daSChuck Lever }; 1121da177e4SLinus Torvalds int status; 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds dprintk("NFS call getattr\n"); 1150e574af1STrond Myklebust nfs_fattr_init(fattr); 116dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 1171da177e4SLinus Torvalds dprintk("NFS reply getattr: %d\n", status); 1181da177e4SLinus Torvalds return status; 1191da177e4SLinus Torvalds } 1201da177e4SLinus Torvalds 1211da177e4SLinus Torvalds static int 1221da177e4SLinus Torvalds nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, 1231da177e4SLinus Torvalds struct iattr *sattr) 1241da177e4SLinus Torvalds { 1252b0143b5SDavid Howells struct inode *inode = d_inode(dentry); 1261da177e4SLinus Torvalds struct nfs3_sattrargs arg = { 1271da177e4SLinus Torvalds .fh = NFS_FH(inode), 1281da177e4SLinus Torvalds .sattr = sattr, 1291da177e4SLinus Torvalds }; 130dead28daSChuck Lever struct rpc_message msg = { 131dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], 132dead28daSChuck Lever .rpc_argp = &arg, 133dead28daSChuck Lever .rpc_resp = fattr, 134dead28daSChuck Lever }; 1351da177e4SLinus Torvalds int status; 1361da177e4SLinus Torvalds 1371da177e4SLinus Torvalds dprintk("NFS call setattr\n"); 138659bfcd6STrond Myklebust if (sattr->ia_valid & ATTR_FILE) 139659bfcd6STrond Myklebust msg.rpc_cred = nfs_file_cred(sattr->ia_file); 1400e574af1STrond Myklebust nfs_fattr_init(fattr); 141dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 142dbc898aeSchendt if (status == 0) { 143dbc898aeSchendt if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_ACL) 144dbc898aeSchendt nfs_zap_acl_cache(inode); 145f044636dSTrond Myklebust nfs_setattr_update_inode(inode, sattr, fattr); 146dbc898aeSchendt } 1471da177e4SLinus Torvalds dprintk("NFS reply setattr: %d\n", status); 1481da177e4SLinus Torvalds return status; 1491da177e4SLinus Torvalds } 1501da177e4SLinus Torvalds 1511da177e4SLinus Torvalds static int 152beffb8feSAl Viro nfs3_proc_lookup(struct inode *dir, const struct qstr *name, 1531775fd3eSDavid Quigley struct nfs_fh *fhandle, struct nfs_fattr *fattr, 1541775fd3eSDavid Quigley struct nfs4_label *label) 1551da177e4SLinus Torvalds { 1561da177e4SLinus Torvalds struct nfs3_diropargs arg = { 1571da177e4SLinus Torvalds .fh = NFS_FH(dir), 1581da177e4SLinus Torvalds .name = name->name, 1591da177e4SLinus Torvalds .len = name->len 1601da177e4SLinus Torvalds }; 1611da177e4SLinus Torvalds struct nfs3_diropres res = { 1621da177e4SLinus Torvalds .fh = fhandle, 1631da177e4SLinus Torvalds .fattr = fattr 1641da177e4SLinus Torvalds }; 165dead28daSChuck Lever struct rpc_message msg = { 166dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], 167dead28daSChuck Lever .rpc_argp = &arg, 168dead28daSChuck Lever .rpc_resp = &res, 169dead28daSChuck Lever }; 1701da177e4SLinus Torvalds int status; 1711da177e4SLinus Torvalds 1721da177e4SLinus Torvalds dprintk("NFS call lookup %s\n", name->name); 173e1fb4d05STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 174e1fb4d05STrond Myklebust if (res.dir_attr == NULL) 175e1fb4d05STrond Myklebust return -ENOMEM; 176e1fb4d05STrond Myklebust 1770e574af1STrond Myklebust nfs_fattr_init(fattr); 178dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 179e1fb4d05STrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 180dead28daSChuck Lever if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { 181dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 182dead28daSChuck Lever msg.rpc_argp = fhandle; 183dead28daSChuck Lever msg.rpc_resp = fattr; 184dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 185dead28daSChuck Lever } 186e1fb4d05STrond Myklebust nfs_free_fattr(res.dir_attr); 1871da177e4SLinus Torvalds dprintk("NFS reply lookup: %d\n", status); 1881da177e4SLinus Torvalds return status; 1891da177e4SLinus Torvalds } 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) 1921da177e4SLinus Torvalds { 1931da177e4SLinus Torvalds struct nfs3_accessargs arg = { 1941da177e4SLinus Torvalds .fh = NFS_FH(inode), 1951750d929SAnna Schumaker .access = entry->mask, 1961da177e4SLinus Torvalds }; 197c407d41aSTrond Myklebust struct nfs3_accessres res; 1981da177e4SLinus Torvalds struct rpc_message msg = { 1991da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], 2001da177e4SLinus Torvalds .rpc_argp = &arg, 2011da177e4SLinus Torvalds .rpc_resp = &res, 202a52458b4SNeilBrown .rpc_cred = entry->cred, 2031da177e4SLinus Torvalds }; 204c407d41aSTrond Myklebust int status = -ENOMEM; 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds dprintk("NFS call access\n"); 207c407d41aSTrond Myklebust res.fattr = nfs_alloc_fattr(); 208c407d41aSTrond Myklebust if (res.fattr == NULL) 209c407d41aSTrond Myklebust goto out; 210c407d41aSTrond Myklebust 2111da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 212c407d41aSTrond Myklebust nfs_refresh_inode(inode, res.fattr); 213eda3e208STrond Myklebust if (status == 0) 214eda3e208STrond Myklebust nfs_access_set_mask(entry, res.access); 215c407d41aSTrond Myklebust nfs_free_fattr(res.fattr); 216c407d41aSTrond Myklebust out: 2171da177e4SLinus Torvalds dprintk("NFS reply access: %d\n", status); 2181da177e4SLinus Torvalds return status; 2191da177e4SLinus Torvalds } 2201da177e4SLinus Torvalds 2211da177e4SLinus Torvalds static int nfs3_proc_readlink(struct inode *inode, struct page *page, 2221da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 2231da177e4SLinus Torvalds { 2243b14d654STrond Myklebust struct nfs_fattr *fattr; 2251da177e4SLinus Torvalds struct nfs3_readlinkargs args = { 2261da177e4SLinus Torvalds .fh = NFS_FH(inode), 2271da177e4SLinus Torvalds .pgbase = pgbase, 2281da177e4SLinus Torvalds .pglen = pglen, 2291da177e4SLinus Torvalds .pages = &page 2301da177e4SLinus Torvalds }; 231dead28daSChuck Lever struct rpc_message msg = { 232dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], 233dead28daSChuck Lever .rpc_argp = &args, 234dead28daSChuck Lever }; 2353b14d654STrond Myklebust int status = -ENOMEM; 2361da177e4SLinus Torvalds 2371da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 2383b14d654STrond Myklebust fattr = nfs_alloc_fattr(); 2393b14d654STrond Myklebust if (fattr == NULL) 2403b14d654STrond Myklebust goto out; 2413b14d654STrond Myklebust msg.rpc_resp = fattr; 2423b14d654STrond Myklebust 243dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2443b14d654STrond Myklebust nfs_refresh_inode(inode, fattr); 2453b14d654STrond Myklebust nfs_free_fattr(fattr); 2463b14d654STrond Myklebust out: 2471da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 2481da177e4SLinus Torvalds return status; 2491da177e4SLinus Torvalds } 2501da177e4SLinus Torvalds 2510b4aae7aSTrond Myklebust struct nfs3_createdata { 2520b4aae7aSTrond Myklebust struct rpc_message msg; 2530b4aae7aSTrond Myklebust union { 2540b4aae7aSTrond Myklebust struct nfs3_createargs create; 2550b4aae7aSTrond Myklebust struct nfs3_mkdirargs mkdir; 2560b4aae7aSTrond Myklebust struct nfs3_symlinkargs symlink; 2570b4aae7aSTrond Myklebust struct nfs3_mknodargs mknod; 2580b4aae7aSTrond Myklebust } arg; 2590b4aae7aSTrond Myklebust struct nfs3_diropres res; 2600b4aae7aSTrond Myklebust struct nfs_fh fh; 2610b4aae7aSTrond Myklebust struct nfs_fattr fattr; 2620b4aae7aSTrond Myklebust struct nfs_fattr dir_attr; 2630b4aae7aSTrond Myklebust }; 2640b4aae7aSTrond Myklebust 2650b4aae7aSTrond Myklebust static struct nfs3_createdata *nfs3_alloc_createdata(void) 2660b4aae7aSTrond Myklebust { 2670b4aae7aSTrond Myklebust struct nfs3_createdata *data; 2680b4aae7aSTrond Myklebust 2690b4aae7aSTrond Myklebust data = kzalloc(sizeof(*data), GFP_KERNEL); 2700b4aae7aSTrond Myklebust if (data != NULL) { 2710b4aae7aSTrond Myklebust data->msg.rpc_argp = &data->arg; 2720b4aae7aSTrond Myklebust data->msg.rpc_resp = &data->res; 2730b4aae7aSTrond Myklebust data->res.fh = &data->fh; 2740b4aae7aSTrond Myklebust data->res.fattr = &data->fattr; 2750b4aae7aSTrond Myklebust data->res.dir_attr = &data->dir_attr; 2760b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 2770b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 2780b4aae7aSTrond Myklebust } 2790b4aae7aSTrond Myklebust return data; 2800b4aae7aSTrond Myklebust } 2810b4aae7aSTrond Myklebust 2820b4aae7aSTrond Myklebust static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) 2830b4aae7aSTrond Myklebust { 2840b4aae7aSTrond Myklebust int status; 2850b4aae7aSTrond Myklebust 2860b4aae7aSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); 2870b4aae7aSTrond Myklebust nfs_post_op_update_inode(dir, data->res.dir_attr); 2880b4aae7aSTrond Myklebust if (status == 0) 2891775fd3eSDavid Quigley status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL); 2900b4aae7aSTrond Myklebust return status; 2910b4aae7aSTrond Myklebust } 2920b4aae7aSTrond Myklebust 2930b4aae7aSTrond Myklebust static void nfs3_free_createdata(struct nfs3_createdata *data) 2940b4aae7aSTrond Myklebust { 2950b4aae7aSTrond Myklebust kfree(data); 2960b4aae7aSTrond Myklebust } 2970b4aae7aSTrond Myklebust 2981da177e4SLinus Torvalds /* 2991da177e4SLinus Torvalds * Create a regular file. 3001da177e4SLinus Torvalds */ 3011da177e4SLinus Torvalds static int 3021da177e4SLinus Torvalds nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 3038867fe58SMiklos Szeredi int flags) 3041da177e4SLinus Torvalds { 305013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 3060b4aae7aSTrond Myklebust struct nfs3_createdata *data; 3070b4aae7aSTrond Myklebust int status = -ENOMEM; 3081da177e4SLinus Torvalds 3096de1472fSAl Viro dprintk("NFS call create %pd\n", dentry); 3100b4aae7aSTrond Myklebust 3110b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 3120b4aae7aSTrond Myklebust if (data == NULL) 3130b4aae7aSTrond Myklebust goto out; 3140b4aae7aSTrond Myklebust 3150b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; 3160b4aae7aSTrond Myklebust data->arg.create.fh = NFS_FH(dir); 3170b4aae7aSTrond Myklebust data->arg.create.name = dentry->d_name.name; 3180b4aae7aSTrond Myklebust data->arg.create.len = dentry->d_name.len; 3190b4aae7aSTrond Myklebust data->arg.create.sattr = sattr; 3200b4aae7aSTrond Myklebust 3210b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3221da177e4SLinus Torvalds if (flags & O_EXCL) { 3230b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; 324a9943d11STrond Myklebust data->arg.create.verifier[0] = cpu_to_be32(jiffies); 325a9943d11STrond Myklebust data->arg.create.verifier[1] = cpu_to_be32(current->pid); 3261da177e4SLinus Torvalds } 3271da177e4SLinus Torvalds 328013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 329013cdf10SChristoph Hellwig if (status) 330013cdf10SChristoph Hellwig goto out; 331055ffbeaSAndreas Gruenbacher 3320b4aae7aSTrond Myklebust for (;;) { 3330b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 3341da177e4SLinus Torvalds 3350b4aae7aSTrond Myklebust if (status != -ENOTSUPP) 3360b4aae7aSTrond Myklebust break; 3370b4aae7aSTrond Myklebust /* If the server doesn't support the exclusive creation 3380b4aae7aSTrond Myklebust * semantics, try again with simple 'guarded' mode. */ 3390b4aae7aSTrond Myklebust switch (data->arg.create.createmode) { 3401da177e4SLinus Torvalds case NFS3_CREATE_EXCLUSIVE: 3410b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_GUARDED; 3421da177e4SLinus Torvalds break; 3431da177e4SLinus Torvalds 3441da177e4SLinus Torvalds case NFS3_CREATE_GUARDED: 3450b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3461da177e4SLinus Torvalds break; 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds case NFS3_CREATE_UNCHECKED: 3491da177e4SLinus Torvalds goto out; 3501da177e4SLinus Torvalds } 3510b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 3520b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 3531da177e4SLinus Torvalds } 3541da177e4SLinus Torvalds 3551da177e4SLinus Torvalds if (status != 0) 356013cdf10SChristoph Hellwig goto out_release_acls; 3571da177e4SLinus Torvalds 3581da177e4SLinus Torvalds /* When we created the file with exclusive semantics, make 3591da177e4SLinus Torvalds * sure we set the attributes afterwards. */ 3600b4aae7aSTrond Myklebust if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { 3611da177e4SLinus Torvalds dprintk("NFS call setattr (post-create)\n"); 3621da177e4SLinus Torvalds 3631da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_ATIME_SET)) 3641da177e4SLinus Torvalds sattr->ia_valid |= ATTR_ATIME; 3651da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_MTIME_SET)) 3661da177e4SLinus Torvalds sattr->ia_valid |= ATTR_MTIME; 3671da177e4SLinus Torvalds 3681da177e4SLinus Torvalds /* Note: we could use a guarded setattr here, but I'm 3691da177e4SLinus Torvalds * not sure this buys us anything (and I'd have 3701da177e4SLinus Torvalds * to revamp the NFSv3 XDR code) */ 3710b4aae7aSTrond Myklebust status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); 3722b0143b5SDavid Howells nfs_post_op_update_inode(d_inode(dentry), data->res.fattr); 3731da177e4SLinus Torvalds dprintk("NFS reply setattr (post-create): %d\n", status); 374055ffbeaSAndreas Gruenbacher if (status != 0) 375013cdf10SChristoph Hellwig goto out_release_acls; 3760b4aae7aSTrond Myklebust } 377013cdf10SChristoph Hellwig 3782b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 379013cdf10SChristoph Hellwig 380013cdf10SChristoph Hellwig out_release_acls: 381013cdf10SChristoph Hellwig posix_acl_release(acl); 382013cdf10SChristoph Hellwig posix_acl_release(default_acl); 3831da177e4SLinus Torvalds out: 3840b4aae7aSTrond Myklebust nfs3_free_createdata(data); 3851da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 3861da177e4SLinus Torvalds return status; 3871da177e4SLinus Torvalds } 3881da177e4SLinus Torvalds 3891da177e4SLinus Torvalds static int 390912678dbSTrond Myklebust nfs3_proc_remove(struct inode *dir, struct dentry *dentry) 3911da177e4SLinus Torvalds { 3924fdc17b2STrond Myklebust struct nfs_removeargs arg = { 3931da177e4SLinus Torvalds .fh = NFS_FH(dir), 394912678dbSTrond Myklebust .name = dentry->d_name, 3951da177e4SLinus Torvalds }; 3964fdc17b2STrond Myklebust struct nfs_removeres res; 3971da177e4SLinus Torvalds struct rpc_message msg = { 3981da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], 3991da177e4SLinus Torvalds .rpc_argp = &arg, 4004fdc17b2STrond Myklebust .rpc_resp = &res, 4011da177e4SLinus Torvalds }; 402d346890bSTrond Myklebust int status = -ENOMEM; 4031da177e4SLinus Torvalds 404912678dbSTrond Myklebust dprintk("NFS call remove %pd2\n", dentry); 405d346890bSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 406d346890bSTrond Myklebust if (res.dir_attr == NULL) 407d346890bSTrond Myklebust goto out; 408d346890bSTrond Myklebust 4091da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 410d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 411d346890bSTrond Myklebust nfs_free_fattr(res.dir_attr); 412d346890bSTrond Myklebust out: 4131da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 4141da177e4SLinus Torvalds return status; 4151da177e4SLinus Torvalds } 4161da177e4SLinus Torvalds 417e4eff1a6STrond Myklebust static void 418ed7e9ad0STrond Myklebust nfs3_proc_unlink_setup(struct rpc_message *msg, 419ed7e9ad0STrond Myklebust struct dentry *dentry, 420ed7e9ad0STrond Myklebust struct inode *inode) 4211da177e4SLinus Torvalds { 4221da177e4SLinus Torvalds msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; 4231da177e4SLinus Torvalds } 4241da177e4SLinus Torvalds 42534e137ccSBryan Schumaker static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data) 42634e137ccSBryan Schumaker { 42734e137ccSBryan Schumaker rpc_call_start(task); 42834e137ccSBryan Schumaker } 42934e137ccSBryan Schumaker 4301da177e4SLinus Torvalds static int 431e4eff1a6STrond Myklebust nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) 4321da177e4SLinus Torvalds { 433e4eff1a6STrond Myklebust struct nfs_removeres *res; 434e4eff1a6STrond Myklebust if (nfs3_async_handle_jukebox(task, dir)) 4351da177e4SLinus Torvalds return 0; 436e4eff1a6STrond Myklebust res = task->tk_msg.rpc_resp; 437d346890bSTrond Myklebust nfs_post_op_update_inode(dir, res->dir_attr); 438e4eff1a6STrond Myklebust return 1; 4391da177e4SLinus Torvalds } 4401da177e4SLinus Torvalds 441d3d4152aSJeff Layton static void 442f2c2c552STrond Myklebust nfs3_proc_rename_setup(struct rpc_message *msg, 443f2c2c552STrond Myklebust struct dentry *old_dentry, 444f2c2c552STrond Myklebust struct dentry *new_dentry) 445d3d4152aSJeff Layton { 446d3d4152aSJeff Layton msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME]; 447d3d4152aSJeff Layton } 448d3d4152aSJeff Layton 449c6bfa1a1SBryan Schumaker static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data) 450c6bfa1a1SBryan Schumaker { 451c6bfa1a1SBryan Schumaker rpc_call_start(task); 452c6bfa1a1SBryan Schumaker } 453c6bfa1a1SBryan Schumaker 454d3d4152aSJeff Layton static int 455d3d4152aSJeff Layton nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir, 456d3d4152aSJeff Layton struct inode *new_dir) 457d3d4152aSJeff Layton { 458d3d4152aSJeff Layton struct nfs_renameres *res; 459d3d4152aSJeff Layton 460d3d4152aSJeff Layton if (nfs3_async_handle_jukebox(task, old_dir)) 461d3d4152aSJeff Layton return 0; 462d3d4152aSJeff Layton res = task->tk_msg.rpc_resp; 463d3d4152aSJeff Layton 464d3d4152aSJeff Layton nfs_post_op_update_inode(old_dir, res->old_fattr); 465d3d4152aSJeff Layton nfs_post_op_update_inode(new_dir, res->new_fattr); 466d3d4152aSJeff Layton return 1; 467d3d4152aSJeff Layton } 468d3d4152aSJeff Layton 4691da177e4SLinus Torvalds static int 470beffb8feSAl Viro nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name) 4711da177e4SLinus Torvalds { 4721da177e4SLinus Torvalds struct nfs3_linkargs arg = { 4731da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 4741da177e4SLinus Torvalds .tofh = NFS_FH(dir), 4751da177e4SLinus Torvalds .toname = name->name, 4761da177e4SLinus Torvalds .tolen = name->len 4771da177e4SLinus Torvalds }; 478136f2627STrond Myklebust struct nfs3_linkres res; 479dead28daSChuck Lever struct rpc_message msg = { 480dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], 481dead28daSChuck Lever .rpc_argp = &arg, 482dead28daSChuck Lever .rpc_resp = &res, 483dead28daSChuck Lever }; 484136f2627STrond Myklebust int status = -ENOMEM; 4851da177e4SLinus Torvalds 4861da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 487136f2627STrond Myklebust res.fattr = nfs_alloc_fattr(); 488136f2627STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 489136f2627STrond Myklebust if (res.fattr == NULL || res.dir_attr == NULL) 490136f2627STrond Myklebust goto out; 491136f2627STrond Myklebust 492dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 493136f2627STrond Myklebust nfs_post_op_update_inode(dir, res.dir_attr); 494136f2627STrond Myklebust nfs_post_op_update_inode(inode, res.fattr); 495136f2627STrond Myklebust out: 496136f2627STrond Myklebust nfs_free_fattr(res.dir_attr); 497136f2627STrond Myklebust nfs_free_fattr(res.fattr); 4981da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 4991da177e4SLinus Torvalds return status; 5001da177e4SLinus Torvalds } 5011da177e4SLinus Torvalds 5021da177e4SLinus Torvalds static int 50394a6d753SChuck Lever nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, 50494a6d753SChuck Lever unsigned int len, struct iattr *sattr) 5051da177e4SLinus Torvalds { 5060b4aae7aSTrond Myklebust struct nfs3_createdata *data; 5070b4aae7aSTrond Myklebust int status = -ENOMEM; 5081da177e4SLinus Torvalds 50994a6d753SChuck Lever if (len > NFS3_MAXPATHLEN) 5101da177e4SLinus Torvalds return -ENAMETOOLONG; 5114f390c15SChuck Lever 5126de1472fSAl Viro dprintk("NFS call symlink %pd\n", dentry); 51394a6d753SChuck Lever 5140b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5150b4aae7aSTrond Myklebust if (data == NULL) 5164f390c15SChuck Lever goto out; 5170b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; 5180b4aae7aSTrond Myklebust data->arg.symlink.fromfh = NFS_FH(dir); 5190b4aae7aSTrond Myklebust data->arg.symlink.fromname = dentry->d_name.name; 5200b4aae7aSTrond Myklebust data->arg.symlink.fromlen = dentry->d_name.len; 5210b4aae7aSTrond Myklebust data->arg.symlink.pages = &page; 5220b4aae7aSTrond Myklebust data->arg.symlink.pathlen = len; 5230b4aae7aSTrond Myklebust data->arg.symlink.sattr = sattr; 5240b4aae7aSTrond Myklebust 5250b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 5260b4aae7aSTrond Myklebust 5270b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5284f390c15SChuck Lever out: 5291da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 5301da177e4SLinus Torvalds return status; 5311da177e4SLinus Torvalds } 5321da177e4SLinus Torvalds 5331da177e4SLinus Torvalds static int 5341da177e4SLinus Torvalds nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 5351da177e4SLinus Torvalds { 536013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 5370b4aae7aSTrond Myklebust struct nfs3_createdata *data; 5380b4aae7aSTrond Myklebust int status = -ENOMEM; 5391da177e4SLinus Torvalds 5406de1472fSAl Viro dprintk("NFS call mkdir %pd\n", dentry); 541055ffbeaSAndreas Gruenbacher 5420b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5430b4aae7aSTrond Myklebust if (data == NULL) 5440b4aae7aSTrond Myklebust goto out; 5450b4aae7aSTrond Myklebust 546013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 547013cdf10SChristoph Hellwig if (status) 548013cdf10SChristoph Hellwig goto out; 549013cdf10SChristoph Hellwig 5500b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; 5510b4aae7aSTrond Myklebust data->arg.mkdir.fh = NFS_FH(dir); 5520b4aae7aSTrond Myklebust data->arg.mkdir.name = dentry->d_name.name; 5530b4aae7aSTrond Myklebust data->arg.mkdir.len = dentry->d_name.len; 5540b4aae7aSTrond Myklebust data->arg.mkdir.sattr = sattr; 5550b4aae7aSTrond Myklebust 5560b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 557055ffbeaSAndreas Gruenbacher if (status != 0) 558013cdf10SChristoph Hellwig goto out_release_acls; 5590b4aae7aSTrond Myklebust 5602b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 561013cdf10SChristoph Hellwig 562013cdf10SChristoph Hellwig out_release_acls: 563013cdf10SChristoph Hellwig posix_acl_release(acl); 564013cdf10SChristoph Hellwig posix_acl_release(default_acl); 565055ffbeaSAndreas Gruenbacher out: 5660b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5671da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 5681da177e4SLinus Torvalds return status; 5691da177e4SLinus Torvalds } 5701da177e4SLinus Torvalds 5711da177e4SLinus Torvalds static int 572beffb8feSAl Viro nfs3_proc_rmdir(struct inode *dir, const struct qstr *name) 5731da177e4SLinus Torvalds { 57439967ddfSTrond Myklebust struct nfs_fattr *dir_attr; 5751da177e4SLinus Torvalds struct nfs3_diropargs arg = { 5761da177e4SLinus Torvalds .fh = NFS_FH(dir), 5771da177e4SLinus Torvalds .name = name->name, 5781da177e4SLinus Torvalds .len = name->len 5791da177e4SLinus Torvalds }; 580dead28daSChuck Lever struct rpc_message msg = { 581dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], 582dead28daSChuck Lever .rpc_argp = &arg, 583dead28daSChuck Lever }; 58439967ddfSTrond Myklebust int status = -ENOMEM; 5851da177e4SLinus Torvalds 5861da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 58739967ddfSTrond Myklebust dir_attr = nfs_alloc_fattr(); 58839967ddfSTrond Myklebust if (dir_attr == NULL) 58939967ddfSTrond Myklebust goto out; 59039967ddfSTrond Myklebust 59139967ddfSTrond Myklebust msg.rpc_resp = dir_attr; 592dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 59339967ddfSTrond Myklebust nfs_post_op_update_inode(dir, dir_attr); 59439967ddfSTrond Myklebust nfs_free_fattr(dir_attr); 59539967ddfSTrond Myklebust out: 5961da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 5971da177e4SLinus Torvalds return status; 5981da177e4SLinus Torvalds } 5991da177e4SLinus Torvalds 6001da177e4SLinus Torvalds /* 6011da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass the user buffer 6021da177e4SLinus Torvalds * to the encode function, which installs it in the receive iovec. 6031da177e4SLinus Torvalds * The decode function itself doesn't perform any decoding, it just makes 6041da177e4SLinus Torvalds * sure the reply is syntactically correct. 6051da177e4SLinus Torvalds * 6061da177e4SLinus Torvalds * Also note that this implementation handles both plain readdir and 6071da177e4SLinus Torvalds * readdirplus. 6081da177e4SLinus Torvalds */ 6091da177e4SLinus Torvalds static int 610684f39b4SNeilBrown nfs3_proc_readdir(struct dentry *dentry, const struct cred *cred, 611a7a3b1e9SBenjamin Coddington u64 cookie, struct page **pages, unsigned int count, bool plus) 6121da177e4SLinus Torvalds { 6132b0143b5SDavid Howells struct inode *dir = d_inode(dentry); 614c3f52af3STrond Myklebust __be32 *verf = NFS_I(dir)->cookieverf; 6151da177e4SLinus Torvalds struct nfs3_readdirargs arg = { 6161da177e4SLinus Torvalds .fh = NFS_FH(dir), 6171da177e4SLinus Torvalds .cookie = cookie, 6181da177e4SLinus Torvalds .verf = {verf[0], verf[1]}, 6191da177e4SLinus Torvalds .plus = plus, 6201da177e4SLinus Torvalds .count = count, 62156e4ebf8SBryan Schumaker .pages = pages 6221da177e4SLinus Torvalds }; 6231da177e4SLinus Torvalds struct nfs3_readdirres res = { 6241da177e4SLinus Torvalds .verf = verf, 6251da177e4SLinus Torvalds .plus = plus 6261da177e4SLinus Torvalds }; 6271da177e4SLinus Torvalds struct rpc_message msg = { 6281da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], 6291da177e4SLinus Torvalds .rpc_argp = &arg, 6301da177e4SLinus Torvalds .rpc_resp = &res, 631a52458b4SNeilBrown .rpc_cred = cred, 6321da177e4SLinus Torvalds }; 633aa49b4cfSTrond Myklebust int status = -ENOMEM; 6341da177e4SLinus Torvalds 6351da177e4SLinus Torvalds if (plus) 6361da177e4SLinus Torvalds msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; 6371da177e4SLinus Torvalds 6381da177e4SLinus Torvalds dprintk("NFS call readdir%s %d\n", 6391da177e4SLinus Torvalds plus? "plus" : "", (unsigned int) cookie); 6401da177e4SLinus Torvalds 641aa49b4cfSTrond Myklebust res.dir_attr = nfs_alloc_fattr(); 642aa49b4cfSTrond Myklebust if (res.dir_attr == NULL) 643aa49b4cfSTrond Myklebust goto out; 644aa49b4cfSTrond Myklebust 6451da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 646c4812998STrond Myklebust 647c4812998STrond Myklebust nfs_invalidate_atime(dir); 648aa49b4cfSTrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 649c4812998STrond Myklebust 650aa49b4cfSTrond Myklebust nfs_free_fattr(res.dir_attr); 651aa49b4cfSTrond Myklebust out: 652d141d974SChuck Lever dprintk("NFS reply readdir%s: %d\n", 653d141d974SChuck Lever plus? "plus" : "", status); 6541da177e4SLinus Torvalds return status; 6551da177e4SLinus Torvalds } 6561da177e4SLinus Torvalds 6571da177e4SLinus Torvalds static int 6581da177e4SLinus Torvalds nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 6591da177e4SLinus Torvalds dev_t rdev) 6601da177e4SLinus Torvalds { 661013cdf10SChristoph Hellwig struct posix_acl *default_acl, *acl; 6620b4aae7aSTrond Myklebust struct nfs3_createdata *data; 6630b4aae7aSTrond Myklebust int status = -ENOMEM; 6641da177e4SLinus Torvalds 6656de1472fSAl Viro dprintk("NFS call mknod %pd %u:%u\n", dentry, 6661da177e4SLinus Torvalds MAJOR(rdev), MINOR(rdev)); 667055ffbeaSAndreas Gruenbacher 6680b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 6690b4aae7aSTrond Myklebust if (data == NULL) 670055ffbeaSAndreas Gruenbacher goto out; 6710b4aae7aSTrond Myklebust 672013cdf10SChristoph Hellwig status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl); 673013cdf10SChristoph Hellwig if (status) 674013cdf10SChristoph Hellwig goto out; 675013cdf10SChristoph Hellwig 6760b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; 6770b4aae7aSTrond Myklebust data->arg.mknod.fh = NFS_FH(dir); 6780b4aae7aSTrond Myklebust data->arg.mknod.name = dentry->d_name.name; 6790b4aae7aSTrond Myklebust data->arg.mknod.len = dentry->d_name.len; 6800b4aae7aSTrond Myklebust data->arg.mknod.sattr = sattr; 6810b4aae7aSTrond Myklebust data->arg.mknod.rdev = rdev; 6820b4aae7aSTrond Myklebust 6830b4aae7aSTrond Myklebust switch (sattr->ia_mode & S_IFMT) { 6840b4aae7aSTrond Myklebust case S_IFBLK: 6850b4aae7aSTrond Myklebust data->arg.mknod.type = NF3BLK; 6860b4aae7aSTrond Myklebust break; 6870b4aae7aSTrond Myklebust case S_IFCHR: 6880b4aae7aSTrond Myklebust data->arg.mknod.type = NF3CHR; 6890b4aae7aSTrond Myklebust break; 6900b4aae7aSTrond Myklebust case S_IFIFO: 6910b4aae7aSTrond Myklebust data->arg.mknod.type = NF3FIFO; 6920b4aae7aSTrond Myklebust break; 6930b4aae7aSTrond Myklebust case S_IFSOCK: 6940b4aae7aSTrond Myklebust data->arg.mknod.type = NF3SOCK; 6950b4aae7aSTrond Myklebust break; 6960b4aae7aSTrond Myklebust default: 6970b4aae7aSTrond Myklebust status = -EINVAL; 6980b4aae7aSTrond Myklebust goto out; 6990b4aae7aSTrond Myklebust } 7000b4aae7aSTrond Myklebust 7010b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 702055ffbeaSAndreas Gruenbacher if (status != 0) 703013cdf10SChristoph Hellwig goto out_release_acls; 704013cdf10SChristoph Hellwig 7052b0143b5SDavid Howells status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl); 706013cdf10SChristoph Hellwig 707013cdf10SChristoph Hellwig out_release_acls: 708013cdf10SChristoph Hellwig posix_acl_release(acl); 709013cdf10SChristoph Hellwig posix_acl_release(default_acl); 710055ffbeaSAndreas Gruenbacher out: 7110b4aae7aSTrond Myklebust nfs3_free_createdata(data); 7121da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 7131da177e4SLinus Torvalds return status; 7141da177e4SLinus Torvalds } 7151da177e4SLinus Torvalds 7161da177e4SLinus Torvalds static int 7171da177e4SLinus Torvalds nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 7181da177e4SLinus Torvalds struct nfs_fsstat *stat) 7191da177e4SLinus Torvalds { 720dead28daSChuck Lever struct rpc_message msg = { 721dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], 722dead28daSChuck Lever .rpc_argp = fhandle, 723dead28daSChuck Lever .rpc_resp = stat, 724dead28daSChuck Lever }; 7251da177e4SLinus Torvalds int status; 7261da177e4SLinus Torvalds 7271da177e4SLinus Torvalds dprintk("NFS call fsstat\n"); 7280e574af1STrond Myklebust nfs_fattr_init(stat->fattr); 729dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 730d141d974SChuck Lever dprintk("NFS reply fsstat: %d\n", status); 7311da177e4SLinus Torvalds return status; 7321da177e4SLinus Torvalds } 7331da177e4SLinus Torvalds 7341da177e4SLinus Torvalds static int 73537ca8f5cSEG Keizer do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle, 7361da177e4SLinus Torvalds struct nfs_fsinfo *info) 7371da177e4SLinus Torvalds { 738dead28daSChuck Lever struct rpc_message msg = { 739dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 740dead28daSChuck Lever .rpc_argp = fhandle, 741dead28daSChuck Lever .rpc_resp = info, 742dead28daSChuck Lever }; 7431da177e4SLinus Torvalds int status; 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 7460e574af1STrond Myklebust nfs_fattr_init(info->fattr); 74737ca8f5cSEG Keizer status = rpc_call_sync(client, &msg, 0); 7481da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 7491da177e4SLinus Torvalds return status; 7501da177e4SLinus Torvalds } 7511da177e4SLinus Torvalds 75237ca8f5cSEG Keizer /* 75337ca8f5cSEG Keizer * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via 75437ca8f5cSEG Keizer * nfs_create_server 75537ca8f5cSEG Keizer */ 75637ca8f5cSEG Keizer static int 75737ca8f5cSEG Keizer nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 75837ca8f5cSEG Keizer struct nfs_fsinfo *info) 75937ca8f5cSEG Keizer { 76037ca8f5cSEG Keizer int status; 76137ca8f5cSEG Keizer 76237ca8f5cSEG Keizer status = do_proc_fsinfo(server->client, fhandle, info); 76337ca8f5cSEG Keizer if (status && server->nfs_client->cl_rpcclient != server->client) 76437ca8f5cSEG Keizer status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); 76537ca8f5cSEG Keizer return status; 76637ca8f5cSEG Keizer } 76737ca8f5cSEG Keizer 7681da177e4SLinus Torvalds static int 7691da177e4SLinus Torvalds nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 7701da177e4SLinus Torvalds struct nfs_pathconf *info) 7711da177e4SLinus Torvalds { 772dead28daSChuck Lever struct rpc_message msg = { 773dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], 774dead28daSChuck Lever .rpc_argp = fhandle, 775dead28daSChuck Lever .rpc_resp = info, 776dead28daSChuck Lever }; 7771da177e4SLinus Torvalds int status; 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds dprintk("NFS call pathconf\n"); 7800e574af1STrond Myklebust nfs_fattr_init(info->fattr); 781dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 7821da177e4SLinus Torvalds dprintk("NFS reply pathconf: %d\n", status); 7831da177e4SLinus Torvalds return status; 7841da177e4SLinus Torvalds } 7851da177e4SLinus Torvalds 786d45f60c6SWeston Andros Adamson static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 7871da177e4SLinus Torvalds { 788d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 7898d8928d8STrond Myklebust struct nfs_server *server = NFS_SERVER(inode); 790cd841605SFred Isaman 79116cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 79216cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 79316cecdf6STrond Myklebust 794cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 795ec06c096STrond Myklebust return -EAGAIN; 7968850df99STrond Myklebust 7978d8928d8STrond Myklebust if (task->tk_status >= 0 && !server->read_hdrsize) 7988d8928d8STrond Myklebust cmpxchg(&server->read_hdrsize, 0, hdr->res.replen); 7998d8928d8STrond Myklebust 800cd841605SFred Isaman nfs_invalidate_atime(inode); 801d45f60c6SWeston Andros Adamson nfs_refresh_inode(inode, &hdr->fattr); 802ec06c096STrond Myklebust return 0; 8031da177e4SLinus Torvalds } 8041da177e4SLinus Torvalds 805d45f60c6SWeston Andros Adamson static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr, 806d45f60c6SWeston Andros Adamson struct rpc_message *msg) 8071da177e4SLinus Torvalds { 808bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; 8098d8928d8STrond Myklebust hdr->args.replen = NFS_SERVER(hdr->inode)->read_hdrsize; 8101da177e4SLinus Torvalds } 8111da177e4SLinus Torvalds 812d45f60c6SWeston Andros Adamson static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task, 813d45f60c6SWeston Andros Adamson struct nfs_pgio_header *hdr) 814ea7c3303SBryan Schumaker { 815ea7c3303SBryan Schumaker rpc_call_start(task); 816ef1820f9SNeilBrown return 0; 817ea7c3303SBryan Schumaker } 818ea7c3303SBryan Schumaker 819d45f60c6SWeston Andros Adamson static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 8201da177e4SLinus Torvalds { 821d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 822cd841605SFred Isaman 82316cecdf6STrond Myklebust if (hdr->pgio_done_cb != NULL) 82416cecdf6STrond Myklebust return hdr->pgio_done_cb(task, hdr); 82516cecdf6STrond Myklebust 826cd841605SFred Isaman if (nfs3_async_handle_jukebox(task, inode)) 827788e7a89STrond Myklebust return -EAGAIN; 8281da177e4SLinus Torvalds if (task->tk_status >= 0) 829a08a8cd3STrond Myklebust nfs_writeback_update_inode(hdr); 830788e7a89STrond Myklebust return 0; 8311da177e4SLinus Torvalds } 8321da177e4SLinus Torvalds 833d45f60c6SWeston Andros Adamson static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr, 834fb91fb0eSAnna Schumaker struct rpc_message *msg, 835fb91fb0eSAnna Schumaker struct rpc_clnt **clnt) 8361da177e4SLinus Torvalds { 837bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; 8381da177e4SLinus Torvalds } 8391da177e4SLinus Torvalds 8400b7c0153SFred Isaman static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data) 8410b7c0153SFred Isaman { 8420b7c0153SFred Isaman rpc_call_start(task); 8430b7c0153SFred Isaman } 8440b7c0153SFred Isaman 8450b7c0153SFred Isaman static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data) 8461da177e4SLinus Torvalds { 84716cecdf6STrond Myklebust if (data->commit_done_cb != NULL) 84816cecdf6STrond Myklebust return data->commit_done_cb(task, data); 84916cecdf6STrond Myklebust 850006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 851788e7a89STrond Myklebust return -EAGAIN; 8529e08a3c5STrond Myklebust nfs_refresh_inode(data->inode, data->res.fattr); 853788e7a89STrond Myklebust return 0; 8541da177e4SLinus Torvalds } 8551da177e4SLinus Torvalds 856e9ae1ee2SAnna Schumaker static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg, 857e9ae1ee2SAnna Schumaker struct rpc_clnt **clnt) 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 8911b720406SColin Ian King static 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 926ab96291eSBryan Schumaker static const struct inode_operations nfs3_dir_inode_operations = { 927ab96291eSBryan Schumaker .create = nfs_create, 928ab96291eSBryan Schumaker .lookup = nfs_lookup, 929ab96291eSBryan Schumaker .link = nfs_link, 930ab96291eSBryan Schumaker .unlink = nfs_unlink, 931ab96291eSBryan Schumaker .symlink = nfs_symlink, 932ab96291eSBryan Schumaker .mkdir = nfs_mkdir, 933ab96291eSBryan Schumaker .rmdir = nfs_rmdir, 934ab96291eSBryan Schumaker .mknod = nfs_mknod, 935ab96291eSBryan Schumaker .rename = nfs_rename, 936ab96291eSBryan Schumaker .permission = nfs_permission, 937ab96291eSBryan Schumaker .getattr = nfs_getattr, 938ab96291eSBryan Schumaker .setattr = nfs_setattr, 9395f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 94074adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 941013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 942013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 943013cdf10SChristoph Hellwig #endif 944ab96291eSBryan Schumaker }; 945ab96291eSBryan Schumaker 946ab96291eSBryan Schumaker static const struct inode_operations nfs3_file_inode_operations = { 947ab96291eSBryan Schumaker .permission = nfs_permission, 948ab96291eSBryan Schumaker .getattr = nfs_getattr, 949ab96291eSBryan Schumaker .setattr = nfs_setattr, 9505f13ee9cSChristoph Hellwig #ifdef CONFIG_NFS_V3_ACL 95174adf83fSChristoph Hellwig .listxattr = nfs3_listxattr, 952013cdf10SChristoph Hellwig .get_acl = nfs3_get_acl, 953013cdf10SChristoph Hellwig .set_acl = nfs3_set_acl, 954013cdf10SChristoph Hellwig #endif 955ab96291eSBryan Schumaker }; 956ab96291eSBryan Schumaker 957509de811SDavid Howells const struct nfs_rpc_ops nfs_v3_clientops = { 9581da177e4SLinus Torvalds .version = 3, /* protocol version */ 9591da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 960b7fa0554SAndreas Gruenbacher .dir_inode_ops = &nfs3_dir_inode_operations, 961b7fa0554SAndreas Gruenbacher .file_inode_ops = &nfs3_file_inode_operations, 9621788ea6eSJeff Layton .file_ops = &nfs_file_operations, 963f30cb757SBenjamin Coddington .nlmclnt_ops = &nlmclnt_fl_close_lock_ops, 9641da177e4SLinus Torvalds .getroot = nfs3_proc_get_root, 965281cad46SBryan Schumaker .submount = nfs_submount, 966ff9099f2SBryan Schumaker .try_mount = nfs_try_mount, 9671da177e4SLinus Torvalds .getattr = nfs3_proc_getattr, 9681da177e4SLinus Torvalds .setattr = nfs3_proc_setattr, 9691da177e4SLinus Torvalds .lookup = nfs3_proc_lookup, 9701da177e4SLinus Torvalds .access = nfs3_proc_access, 9711da177e4SLinus Torvalds .readlink = nfs3_proc_readlink, 9721da177e4SLinus Torvalds .create = nfs3_proc_create, 9731da177e4SLinus Torvalds .remove = nfs3_proc_remove, 9741da177e4SLinus Torvalds .unlink_setup = nfs3_proc_unlink_setup, 97534e137ccSBryan Schumaker .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare, 9761da177e4SLinus Torvalds .unlink_done = nfs3_proc_unlink_done, 977d3d4152aSJeff Layton .rename_setup = nfs3_proc_rename_setup, 978c6bfa1a1SBryan Schumaker .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare, 979d3d4152aSJeff Layton .rename_done = nfs3_proc_rename_done, 9801da177e4SLinus Torvalds .link = nfs3_proc_link, 9811da177e4SLinus Torvalds .symlink = nfs3_proc_symlink, 9821da177e4SLinus Torvalds .mkdir = nfs3_proc_mkdir, 9831da177e4SLinus Torvalds .rmdir = nfs3_proc_rmdir, 9841da177e4SLinus Torvalds .readdir = nfs3_proc_readdir, 9851da177e4SLinus Torvalds .mknod = nfs3_proc_mknod, 9861da177e4SLinus Torvalds .statfs = nfs3_proc_statfs, 9871da177e4SLinus Torvalds .fsinfo = nfs3_proc_fsinfo, 9881da177e4SLinus Torvalds .pathconf = nfs3_proc_pathconf, 9891da177e4SLinus Torvalds .decode_dirent = nfs3_decode_dirent, 990a4cdda59SAnna Schumaker .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare, 9911da177e4SLinus Torvalds .read_setup = nfs3_proc_read_setup, 992ec06c096STrond Myklebust .read_done = nfs3_read_done, 9931da177e4SLinus Torvalds .write_setup = nfs3_proc_write_setup, 994788e7a89STrond Myklebust .write_done = nfs3_write_done, 9951da177e4SLinus Torvalds .commit_setup = nfs3_proc_commit_setup, 9960b7c0153SFred Isaman .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare, 997788e7a89STrond Myklebust .commit_done = nfs3_commit_done, 9981da177e4SLinus Torvalds .lock = nfs3_proc_lock, 999013cdf10SChristoph Hellwig .clear_acl_cache = forget_all_cached_acls, 10007fe5c398STrond Myklebust .close_context = nfs_close_context, 1001011e2a7fSBryan Schumaker .have_delegation = nfs3_have_delegation, 10026663ee7fSBryan Schumaker .alloc_client = nfs_alloc_client, 100345a52a02SAndy Adamson .init_client = nfs_init_client, 1004cdb7ecedSBryan Schumaker .free_client = nfs_free_client, 10051179acc6SBryan Schumaker .create_server = nfs3_create_server, 10061179acc6SBryan Schumaker .clone_server = nfs3_clone_server, 10071da177e4SLinus Torvalds }; 1008