blob: 9d1c5dba2bbb6625df90cebca48a364a29b9fe97 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Server-side procedures for NFSv4.
3 *
4 * Copyright (c) 2002 The Regents of the University of Michigan.
5 * All rights reserved.
6 *
7 * Kendrick Smith <kmsmith@umich.edu>
8 * Andy Adamson <andros@umich.edu>
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 */
NeilBrown7e06b7f2005-06-23 22:03:13 -070035#include <linux/file.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090036#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
Mi Jinlong58e7b332011-08-28 18:18:56 +080038#include "idmap.h"
Boaz Harrosh9a74af22009-12-03 20:30:56 +020039#include "cache.h"
40#include "xdr4.h"
J. Bruce Fields0a3adad2009-11-04 18:12:35 -050041#include "vfs.h"
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +010042#include "current_stateid.h"
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +030043#include "netns.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070044
45#define NFSDDBG_FACILITY NFSDDBG_PROC
46
Yu Zhiguo3c8e0312009-05-16 16:22:31 +080047static u32 nfsd_attrmask[] = {
48 NFSD_WRITEABLE_ATTRS_WORD0,
49 NFSD_WRITEABLE_ATTRS_WORD1,
50 NFSD_WRITEABLE_ATTRS_WORD2
51};
52
53static u32 nfsd41_ex_attrmask[] = {
54 NFSD_SUPPATTR_EXCLCREAT_WORD0,
55 NFSD_SUPPATTR_EXCLCREAT_WORD1,
56 NFSD_SUPPATTR_EXCLCREAT_WORD2
57};
58
59static __be32
60check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
61 u32 *bmval, u32 *writable)
62{
63 struct dentry *dentry = cstate->current_fh.fh_dentry;
Yu Zhiguo3c8e0312009-05-16 16:22:31 +080064
65 /*
66 * Check about attributes are supported by the NFSv4 server or not.
67 * According to spec, unsupported attributes return ERR_ATTRNOTSUPP.
68 */
69 if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) ||
70 (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) ||
71 (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion)))
72 return nfserr_attrnotsupp;
73
74 /*
Trond Myklebusta06b1262009-08-31 15:16:11 -040075 * Check FATTR4_WORD0_ACL can be supported
Yu Zhiguo3c8e0312009-05-16 16:22:31 +080076 * in current environment or not.
77 */
78 if (bmval[0] & FATTR4_WORD0_ACL) {
79 if (!IS_POSIXACL(dentry->d_inode))
80 return nfserr_attrnotsupp;
81 }
Yu Zhiguo3c8e0312009-05-16 16:22:31 +080082
83 /*
84 * According to spec, read-only attributes return ERR_INVAL.
85 */
86 if (writable) {
87 if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) ||
88 (bmval[2] & ~writable[2]))
89 return nfserr_inval;
90 }
91
92 return nfs_ok;
93}
94
95static __be32
96nfsd4_check_open_attributes(struct svc_rqst *rqstp,
97 struct nfsd4_compound_state *cstate, struct nfsd4_open *open)
98{
99 __be32 status = nfs_ok;
100
101 if (open->op_create == NFS4_OPEN_CREATE) {
102 if (open->op_createmode == NFS4_CREATE_UNCHECKED
103 || open->op_createmode == NFS4_CREATE_GUARDED)
104 status = check_attr_support(rqstp, cstate,
105 open->op_bmval, nfsd_attrmask);
106 else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1)
107 status = check_attr_support(rqstp, cstate,
108 open->op_bmval, nfsd41_ex_attrmask);
109 }
110
111 return status;
112}
113
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800114static int
115is_create_with_attrs(struct nfsd4_open *open)
116{
117 return open->op_create == NFS4_OPEN_CREATE
118 && (open->op_createmode == NFS4_CREATE_UNCHECKED
119 || open->op_createmode == NFS4_CREATE_GUARDED
120 || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1);
121}
122
123/*
124 * if error occurs when setting the acl, just clear the acl bit
125 * in the returned attr bitmap.
126 */
127static void
128do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
129 struct nfs4_acl *acl, u32 *bmval)
130{
131 __be32 status;
132
133 status = nfsd4_set_nfs4_acl(rqstp, fhp, acl);
134 if (status)
135 /*
136 * We should probably fail the whole open at this point,
137 * but we've already created the file, so it's too late;
138 * So this seems the least of evils:
139 */
140 bmval[0] &= ~FATTR4_WORD0_ACL;
141}
142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143static inline void
144fh_dup2(struct svc_fh *dst, struct svc_fh *src)
145{
146 fh_put(dst);
147 dget(src->fh_dentry);
148 if (src->fh_export)
149 cache_get(&src->fh_export->h);
150 *dst = *src;
151}
152
Al Virob37ad282006-10-19 23:28:59 -0700153static __be32
J. Bruce Fieldsdc730e12006-10-17 00:10:13 -0700154do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155{
Al Virob37ad282006-10-19 23:28:59 -0700156 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157
158 if (open->op_truncate &&
159 !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE))
160 return nfserr_inval;
161
J. Bruce Fieldsa0432262011-08-25 10:48:39 -0400162 accmode |= NFSD_MAY_READ_IF_EXEC;
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 if (open->op_share_access & NFS4_SHARE_ACCESS_READ)
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200165 accmode |= NFSD_MAY_READ;
J. Bruce Fields9801d8a2006-10-17 00:10:14 -0700166 if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200167 accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC);
J. Bruce Fields57ecb342009-12-01 19:42:57 -0500168 if (open->op_share_deny & NFS4_SHARE_DENY_READ)
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200169 accmode |= NFSD_MAY_WRITE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170
171 status = fh_verify(rqstp, current_fh, S_IFREG, accmode);
172
173 return status;
174}
175
J. Bruce Fieldsaadab6c2011-08-15 16:55:02 -0400176static __be32 nfsd_check_obj_isreg(struct svc_fh *fh)
177{
178 umode_t mode = fh->fh_dentry->d_inode->i_mode;
179
180 if (S_ISREG(mode))
181 return nfs_ok;
182 if (S_ISDIR(mode))
183 return nfserr_isdir;
184 /*
185 * Using err_symlink as our catch-all case may look odd; but
186 * there's no other obvious error for this case in 4.0, and we
187 * happen to know that it will cause the linux v4 client to do
188 * the right thing on attempts to open something other than a
189 * regular file.
190 */
191 return nfserr_symlink;
192}
193
Al Virob37ad282006-10-19 23:28:59 -0700194static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open)
196{
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500197 struct svc_fh *resfh;
Neil Brown7007c902012-12-07 15:40:55 -0500198 int accmode;
Al Virob37ad282006-10-19 23:28:59 -0700199 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500201 resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL);
202 if (!resfh)
203 return nfserr_jukebox;
204 fh_init(resfh, NFS4_FHSIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 open->op_truncate = 0;
206
207 if (open->op_create) {
Benny Halevy79fb54a2009-04-03 08:29:17 +0300208 /* FIXME: check session persistence and pnfs flags.
209 * The nfsv4.1 spec requires the following semantics:
210 *
211 * Persistent | pNFS | Server REQUIRED | Client Allowed
212 * Reply Cache | server | |
213 * -------------+--------+-----------------+--------------------
214 * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1
215 * | | | (SHOULD)
216 * | | and EXCLUSIVE4 | or EXCLUSIVE4
217 * | | | (SHOULD NOT)
218 * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1
219 * yes | no | GUARDED4 | GUARDED4
220 * yes | yes | GUARDED4 | GUARDED4
221 */
222
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 /*
224 * Note: create modes (UNCHECKED,GUARDED...) are the same
Mi Jinlongac6721a2011-04-20 17:06:25 +0800225 * in NFSv4 as in v3 except EXCLUSIVE4_1.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 */
Mi Jinlongac6721a2011-04-20 17:06:25 +0800227 status = do_nfsd_create(rqstp, current_fh, open->op_fname.data,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228 open->op_fname.len, &open->op_iattr,
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500229 resfh, open->op_createmode,
Jeff Layton749997e2007-07-31 00:37:51 -0700230 (u32 *)open->op_verf.data,
J. Bruce Fields856121b2011-10-13 11:37:11 -0400231 &open->op_truncate, &open->op_created);
Jeff Layton749997e2007-07-31 00:37:51 -0700232
J. Bruce Fields99f88722009-02-02 15:12:27 -0500233 /*
234 * Following rfc 3530 14.2.16, use the returned bitmask
235 * to indicate which attributes we used to store the
236 * verifier:
Jeff Layton749997e2007-07-31 00:37:51 -0700237 */
238 if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0)
J. Bruce Fields99f88722009-02-02 15:12:27 -0500239 open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS |
J. Bruce Fields9dc4e6c2012-04-09 18:06:49 -0400240 FATTR4_WORD1_TIME_MODIFY);
J. Bruce Fieldsaf858522006-11-08 17:44:39 -0800241 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 status = nfsd_lookup(rqstp, current_fh,
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500243 open->op_fname.data, open->op_fname.len, resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244 fh_unlock(current_fh);
245 }
J. Bruce Fieldsaf858522006-11-08 17:44:39 -0800246 if (status)
247 goto out;
J. Bruce Fields9dc4e6c2012-04-09 18:06:49 -0400248 status = nfsd_check_obj_isreg(resfh);
249 if (status)
250 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800252 if (is_create_with_attrs(open) && open->op_acl != NULL)
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500253 do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval);
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800254
J. Bruce Fieldsaf858522006-11-08 17:44:39 -0800255 /* set reply cache */
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400256 fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh,
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500257 &resfh->fh_handle);
Neil Brown7007c902012-12-07 15:40:55 -0500258 accmode = NFSD_MAY_NOP;
259 if (open->op_created)
260 accmode |= NFSD_MAY_OWNER_OVERRIDE;
261 status = do_open_permission(rqstp, resfh, open, accmode);
J. Bruce Fields41fd1e42012-01-27 16:26:02 -0500262 set_change_info(&open->op_cinfo, current_fh);
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500263 fh_dup2(current_fh, resfh);
J. Bruce Fieldsaf858522006-11-08 17:44:39 -0800264out:
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500265 fh_put(resfh);
266 kfree(resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 return status;
268}
269
Al Virob37ad282006-10-19 23:28:59 -0700270static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open)
272{
Al Virob37ad282006-10-19 23:28:59 -0700273 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 /* We don't know the target directory, and therefore can not
276 * set the change info
277 */
278
279 memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info));
280
281 /* set replay cache */
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400282 fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh,
J. Bruce Fieldsa4773c082009-02-02 17:23:10 -0500283 &current_fh->fh_handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284
285 open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) &&
286 (open->op_iattr.ia_size == 0);
287
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200288 status = do_open_permission(rqstp, current_fh, open,
289 NFSD_MAY_OWNER_OVERRIDE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290
291 return status;
292}
293
Andy Adamson60adfc52009-04-03 08:28:50 +0300294static void
295copy_clientid(clientid_t *clid, struct nfsd4_session *session)
296{
297 struct nfsd4_sessionid *sid =
298 (struct nfsd4_sessionid *)session->se_sessionid.data;
299
300 clid->cl_boot = sid->clientid.cl_boot;
301 clid->cl_id = sid->clientid.cl_id;
302}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303
J.Bruce Fields71911552006-12-13 00:35:29 -0800304static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800305nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -0800306 struct nfsd4_open *open)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307{
Al Virob37ad282006-10-19 23:28:59 -0700308 __be32 status;
Andy Adamson66689582009-04-03 08:28:45 +0300309 struct nfsd4_compoundres *resp;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300310 struct net *net = SVC_NET(rqstp);
311 struct nfsd_net *nn = net_generic(net, nfsd_net_id);
Andy Adamson66689582009-04-03 08:28:45 +0300312
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400313 dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 (int)open->op_fname.len, open->op_fname.data,
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400315 open->op_openowner);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 /* This check required by spec. */
318 if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL)
319 return nfserr_inval;
320
J. Bruce Fields856121b2011-10-13 11:37:11 -0400321 open->op_created = 0;
Mi Jinlongab1350b2011-07-14 15:06:26 +0800322 /*
323 * RFC5661 18.51.3
324 * Before RECLAIM_COMPLETE done, server should deny new lock
325 */
326 if (nfsd4_has_session(cstate) &&
Jeff Laytona52d7262012-03-21 09:52:02 -0400327 !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE,
328 &cstate->session->se_client->cl_flags) &&
Mi Jinlongab1350b2011-07-14 15:06:26 +0800329 open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
330 return nfserr_grace;
331
Andy Adamson60adfc52009-04-03 08:28:50 +0300332 if (nfsd4_has_session(cstate))
333 copy_clientid(&open->op_clientid, cstate->session);
334
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 nfs4_lock_state();
336
337 /* check seqid for replay. set nfs4_owner */
Andy Adamson66689582009-04-03 08:28:45 +0300338 resp = rqstp->rq_resp;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300339 status = nfsd4_process_open1(&resp->cstate, open, nn);
Al Viroa90b0612006-10-19 23:29:03 -0700340 if (status == nfserr_replay_me) {
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400341 struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800342 fh_put(&cstate->current_fh);
J. Bruce Fieldsa4773c082009-02-02 17:23:10 -0500343 fh_copy_shallow(&cstate->current_fh.fh_handle,
344 &rp->rp_openfh);
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200345 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 if (status)
347 dprintk("nfsd4_open: replay failed"
348 " restoring previous filehandle\n");
349 else
Al Viroa90b0612006-10-19 23:29:03 -0700350 status = nfserr_replay_me;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 }
352 if (status)
353 goto out;
J. Bruce Fieldsfb553c02006-01-18 17:43:36 -0800354
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800355 status = nfsd4_check_open_attributes(rqstp, cstate, open);
356 if (status)
357 goto out;
358
J. Bruce Fieldsfb553c02006-01-18 17:43:36 -0800359 /* Openowner is now set, so sequence id will get bumped. Now we need
360 * these checks before we do any creates: */
J. Bruce Fieldscbd0d512006-02-07 12:58:32 -0800361 status = nfserr_grace;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300362 if (locks_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
J. Bruce Fieldscbd0d512006-02-07 12:58:32 -0800363 goto out;
364 status = nfserr_no_grace;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300365 if (!locks_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
J. Bruce Fieldscbd0d512006-02-07 12:58:32 -0800366 goto out;
J. Bruce Fieldsfb553c02006-01-18 17:43:36 -0800367
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 switch (open->op_claim_type) {
NeilBrown0dd3c192005-06-23 22:02:56 -0700369 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370 case NFS4_OPEN_CLAIM_NULL:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800371 status = do_open_lookup(rqstp, &cstate->current_fh,
372 open);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 if (status)
374 goto out;
375 break;
376 case NFS4_OPEN_CLAIM_PREVIOUS:
J. Bruce Fieldsdad1c062011-09-12 12:24:13 -0400377 open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300378 status = nfs4_check_open_reclaim(&open->op_clientid,
379 cstate->minorversion,
380 nn);
Mi Jinlong0cf99b92011-11-23 10:48:40 +0800381 if (status)
382 goto out;
J. Bruce Fields8b289b22011-10-19 11:52:12 -0400383 case NFS4_OPEN_CLAIM_FH:
384 case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800385 status = do_open_fhandle(rqstp, &cstate->current_fh,
386 open);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 if (status)
388 goto out;
389 break;
J. Bruce Fields8b289b22011-10-19 11:52:12 -0400390 case NFS4_OPEN_CLAIM_DELEG_PREV_FH:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391 case NFS4_OPEN_CLAIM_DELEGATE_PREV:
J. Bruce Fieldsdad1c062011-09-12 12:24:13 -0400392 open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
J. Bruce Fields2fdada02007-07-27 16:10:37 -0400393 dprintk("NFSD: unsupported OPEN claim type %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 open->op_claim_type);
395 status = nfserr_notsupp;
396 goto out;
397 default:
J. Bruce Fields2fdada02007-07-27 16:10:37 -0400398 dprintk("NFSD: Invalid OPEN claim type %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 open->op_claim_type);
400 status = nfserr_inval;
401 goto out;
402 }
403 /*
404 * nfsd4_process_open2() does the actual opening of the file. If
405 * successful, it (1) truncates the file if open->op_truncate was
406 * set, (2) sets open->op_stateid, (3) sets open->op_delegation.
407 */
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800408 status = nfsd4_process_open2(rqstp, &cstate->current_fh, open);
J. Bruce Fields856121b2011-10-13 11:37:11 -0400409 WARN_ON(status && open->op_created);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410out:
J. Bruce Fieldsd29b20c2011-10-13 15:12:59 -0400411 nfsd4_cleanup_open_state(open, status);
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400412 if (open->op_openowner)
413 cstate->replay_owner = &open->op_openowner->oo_owner;
J. Bruce Fields7c13f342011-08-30 22:15:47 -0400414 else
J. Bruce Fields5ec094c2011-08-30 17:02:48 -0400415 nfs4_unlock_state();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 return status;
417}
418
419/*
420 * filehandle-manipulating ops.
421 */
J.Bruce Fields71911552006-12-13 00:35:29 -0800422static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800423nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
424 struct svc_fh **getfh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800426 if (!cstate->current_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 return nfserr_nofilehandle;
428
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800429 *getfh = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 return nfs_ok;
431}
432
J.Bruce Fields71911552006-12-13 00:35:29 -0800433static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800434nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
435 struct nfsd4_putfh *putfh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800437 fh_put(&cstate->current_fh);
438 cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen;
439 memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval,
440 putfh->pf_fhlen);
J. Bruce Fields68d93182011-04-08 17:00:50 -0400441 return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442}
443
J.Bruce Fields71911552006-12-13 00:35:29 -0800444static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800445nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
446 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447{
Al Virob37ad282006-10-19 23:28:59 -0700448 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800450 fh_put(&cstate->current_fh);
J. Bruce Fieldsdf547ef2007-07-17 04:04:43 -0700451 status = exp_pseudoroot(rqstp, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 return status;
453}
454
J.Bruce Fields71911552006-12-13 00:35:29 -0800455static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800456nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
457 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800459 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 return nfserr_restorefh;
461
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800462 fh_dup2(&cstate->current_fh, &cstate->save_fh);
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +0100463 if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) {
464 memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t));
465 SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG);
466 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467 return nfs_ok;
468}
469
J.Bruce Fields71911552006-12-13 00:35:29 -0800470static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800471nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
472 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800474 if (!cstate->current_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 return nfserr_nofilehandle;
476
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800477 fh_dup2(&cstate->save_fh, &cstate->current_fh);
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +0100478 if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) {
479 memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t));
480 SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG);
481 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 return nfs_ok;
483}
484
485/*
486 * misc nfsv4 ops
487 */
J.Bruce Fields71911552006-12-13 00:35:29 -0800488static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800489nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
490 struct nfsd4_access *access)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491{
492 if (access->ac_req_access & ~NFS3_ACCESS_FULL)
493 return nfserr_inval;
494
495 access->ac_resp_access = access->ac_req_access;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800496 return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access,
497 &access->ac_supported);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498}
499
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300500static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net)
Chuck Leverab4684d2012-03-02 17:13:50 -0500501{
502 __be32 verf[2];
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300503 struct nfsd_net *nn = net_generic(net, nfsd_net_id);
Chuck Leverab4684d2012-03-02 17:13:50 -0500504
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300505 verf[0] = (__be32)nn->nfssvc_boot.tv_sec;
506 verf[1] = (__be32)nn->nfssvc_boot.tv_usec;
Chuck Leverab4684d2012-03-02 17:13:50 -0500507 memcpy(verifier->data, verf, sizeof(verifier->data));
508}
509
J.Bruce Fields71911552006-12-13 00:35:29 -0800510static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800511nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
512 struct nfsd4_commit *commit)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513{
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300514 gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp));
J. Bruce Fields75c096f2011-08-15 18:39:32 -0400515 return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset,
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800516 commit->co_count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517}
518
Al Virob37ad282006-10-19 23:28:59 -0700519static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800520nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
521 struct nfsd4_create *create)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522{
523 struct svc_fh resfh;
Al Virob37ad282006-10-19 23:28:59 -0700524 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 dev_t rdev;
526
527 fh_init(&resfh, NFS4_FHSIZE);
528
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200529 status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR,
530 NFSD_MAY_CREATE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531 if (status)
532 return status;
533
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800534 status = check_attr_support(rqstp, cstate, create->cr_bmval,
535 nfsd_attrmask);
536 if (status)
537 return status;
538
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539 switch (create->cr_type) {
540 case NF4LNK:
541 /* ugh! we have to null-terminate the linktext, or
542 * vfs_symlink() will choke. it is always safe to
543 * null-terminate by brute force, since at worst we
544 * will overwrite the first byte of the create namelen
545 * in the XDR buffer, which has already been extracted
546 * during XDR decode.
547 */
548 create->cr_linkname[create->cr_linklen] = 0;
549
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800550 status = nfsd_symlink(rqstp, &cstate->current_fh,
551 create->cr_name, create->cr_namelen,
552 create->cr_linkname, create->cr_linklen,
553 &resfh, &create->cr_iattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554 break;
555
556 case NF4BLK:
557 rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
558 if (MAJOR(rdev) != create->cr_specdata1 ||
559 MINOR(rdev) != create->cr_specdata2)
560 return nfserr_inval;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800561 status = nfsd_create(rqstp, &cstate->current_fh,
562 create->cr_name, create->cr_namelen,
563 &create->cr_iattr, S_IFBLK, rdev, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 break;
565
566 case NF4CHR:
567 rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
568 if (MAJOR(rdev) != create->cr_specdata1 ||
569 MINOR(rdev) != create->cr_specdata2)
570 return nfserr_inval;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800571 status = nfsd_create(rqstp, &cstate->current_fh,
572 create->cr_name, create->cr_namelen,
573 &create->cr_iattr,S_IFCHR, rdev, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574 break;
575
576 case NF4SOCK:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800577 status = nfsd_create(rqstp, &cstate->current_fh,
578 create->cr_name, create->cr_namelen,
579 &create->cr_iattr, S_IFSOCK, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580 break;
581
582 case NF4FIFO:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800583 status = nfsd_create(rqstp, &cstate->current_fh,
584 create->cr_name, create->cr_namelen,
585 &create->cr_iattr, S_IFIFO, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 break;
587
588 case NF4DIR:
589 create->cr_iattr.ia_valid &= ~ATTR_SIZE;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800590 status = nfsd_create(rqstp, &cstate->current_fh,
591 create->cr_name, create->cr_namelen,
592 &create->cr_iattr, S_IFDIR, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593 break;
594
595 default:
596 status = nfserr_badtype;
597 }
598
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800599 if (status)
600 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800602 if (create->cr_acl != NULL)
603 do_set_nfs4_acl(rqstp, &resfh, create->cr_acl,
604 create->cr_bmval);
605
606 fh_unlock(&cstate->current_fh);
607 set_change_info(&create->cr_cinfo, &cstate->current_fh);
608 fh_dup2(&cstate->current_fh, &resfh);
609out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610 fh_put(&resfh);
611 return status;
612}
613
J.Bruce Fields71911552006-12-13 00:35:29 -0800614static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800615nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
616 struct nfsd4_getattr *getattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617{
Al Virob37ad282006-10-19 23:28:59 -0700618 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200620 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621 if (status)
622 return status;
623
624 if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
625 return nfserr_inval;
626
Andy Adamson7e705702009-04-03 08:29:11 +0300627 getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
628 getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
629 getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800631 getattr->ga_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 return nfs_ok;
633}
634
J.Bruce Fields71911552006-12-13 00:35:29 -0800635static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800636nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
637 struct nfsd4_link *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638{
Al Virob37ad282006-10-19 23:28:59 -0700639 __be32 status = nfserr_nofilehandle;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800641 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642 return status;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800643 status = nfsd_link(rqstp, &cstate->current_fh,
644 link->li_name, link->li_namelen, &cstate->save_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645 if (!status)
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800646 set_change_info(&link->li_cinfo, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 return status;
648}
649
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500650static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651{
652 struct svc_fh tmp_fh;
Al Virob37ad282006-10-19 23:28:59 -0700653 __be32 ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654
655 fh_init(&tmp_fh, NFS4_FHSIZE);
J. Bruce Fieldsdf547ef2007-07-17 04:04:43 -0700656 ret = exp_pseudoroot(rqstp, &tmp_fh);
657 if (ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658 return ret;
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500659 if (tmp_fh.fh_dentry == fh->fh_dentry) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660 fh_put(&tmp_fh);
661 return nfserr_noent;
662 }
663 fh_put(&tmp_fh);
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500664 return nfsd_lookup(rqstp, fh, "..", 2, fh);
665}
666
667static __be32
668nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
669 void *arg)
670{
671 return nfsd4_do_lookupp(rqstp, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672}
673
J.Bruce Fields71911552006-12-13 00:35:29 -0800674static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800675nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
676 struct nfsd4_lookup *lookup)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800678 return nfsd_lookup(rqstp, &cstate->current_fh,
679 lookup->lo_name, lookup->lo_len,
680 &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681}
682
J.Bruce Fields71911552006-12-13 00:35:29 -0800683static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800684nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
685 struct nfsd4_read *read)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686{
Al Virob37ad282006-10-19 23:28:59 -0700687 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688
689 /* no need to check permission - this will be done in nfsd_read() */
690
NeilBrown7e06b7f2005-06-23 22:03:13 -0700691 read->rd_filp = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692 if (read->rd_offset >= OFFSET_MAX)
693 return nfserr_inval;
694
J. Bruce Fields9b3234b2012-12-04 18:03:46 -0500695 /*
696 * If we do a zero copy read, then a client will see read data
697 * that reflects the state of the file *after* performing the
698 * following compound.
699 *
700 * To ensure proper ordering, we therefore turn off zero copy if
701 * the client wants us to do more in this compound:
702 */
703 if (!nfsd4_last_compound_op(rqstp))
704 rqstp->rq_splice_ok = false;
705
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 nfs4_lock_state();
707 /* check stateid */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400708 if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
709 cstate, &read->rd_stateid,
Benny Halevydd453df2009-04-03 08:28:41 +0300710 RD_STATE, &read->rd_filp))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711 dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
712 goto out;
713 }
NeilBrown7e06b7f2005-06-23 22:03:13 -0700714 if (read->rd_filp)
715 get_file(read->rd_filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 status = nfs_ok;
717out:
718 nfs4_unlock_state();
719 read->rd_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800720 read->rd_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 return status;
722}
723
J.Bruce Fields71911552006-12-13 00:35:29 -0800724static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800725nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
726 struct nfsd4_readdir *readdir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727{
728 u64 cookie = readdir->rd_cookie;
729 static const nfs4_verifier zeroverf;
730
731 /* no need to check permission - this will be done in nfsd_readdir() */
732
733 if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
734 return nfserr_inval;
735
Andy Adamson7e705702009-04-03 08:29:11 +0300736 readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
737 readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
738 readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739
Bernd Schubert832023b2011-08-08 17:38:08 +0200740 if ((cookie == 1) || (cookie == 2) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE)))
742 return nfserr_bad_cookie;
743
744 readdir->rd_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800745 readdir->rd_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746 return nfs_ok;
747}
748
J.Bruce Fields71911552006-12-13 00:35:29 -0800749static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800750nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
751 struct nfsd4_readlink *readlink)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752{
753 readlink->rl_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800754 readlink->rl_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755 return nfs_ok;
756}
757
J.Bruce Fields71911552006-12-13 00:35:29 -0800758static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800759nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
760 struct nfsd4_remove *remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761{
Al Virob37ad282006-10-19 23:28:59 -0700762 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400764 if (locks_in_grace(SVC_NET(rqstp)))
NeilBrownc815afc2005-06-23 22:03:00 -0700765 return nfserr_grace;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800766 status = nfsd_unlink(rqstp, &cstate->current_fh, 0,
767 remove->rm_name, remove->rm_namelen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768 if (!status) {
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800769 fh_unlock(&cstate->current_fh);
770 set_change_info(&remove->rm_cinfo, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771 }
772 return status;
773}
774
J.Bruce Fields71911552006-12-13 00:35:29 -0800775static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800776nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
777 struct nfsd4_rename *rename)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778{
Al Virob37ad282006-10-19 23:28:59 -0700779 __be32 status = nfserr_nofilehandle;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800781 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782 return status;
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400783 if (locks_in_grace(SVC_NET(rqstp)) &&
784 !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK))
NeilBrownc815afc2005-06-23 22:03:00 -0700785 return nfserr_grace;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800786 status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname,
787 rename->rn_snamelen, &cstate->current_fh,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788 rename->rn_tname, rename->rn_tnamelen);
789
790 /* the underlying filesystem returns different error's than required
791 * by NFSv4. both save_fh and current_fh have been verified.. */
792 if (status == nfserr_isdir)
793 status = nfserr_exist;
794 else if ((status == nfserr_notdir) &&
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800795 (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) &&
796 S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797 status = nfserr_exist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798
799 if (!status) {
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800800 set_change_info(&rename->rn_sinfo, &cstate->current_fh);
801 set_change_info(&rename->rn_tinfo, &cstate->save_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 }
803 return status;
804}
805
J.Bruce Fields71911552006-12-13 00:35:29 -0800806static __be32
Andy Adamsondcb488a32007-07-17 04:04:51 -0700807nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
808 struct nfsd4_secinfo *secinfo)
809{
810 struct svc_fh resfh;
811 struct svc_export *exp;
812 struct dentry *dentry;
813 __be32 err;
814
815 fh_init(&resfh, NFS4_FHSIZE);
J. Bruce Fields29a78a32011-04-09 11:28:53 -0400816 err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC);
817 if (err)
818 return err;
Andy Adamsondcb488a32007-07-17 04:04:51 -0700819 err = nfsd_lookup_dentry(rqstp, &cstate->current_fh,
820 secinfo->si_name, secinfo->si_namelen,
821 &exp, &dentry);
822 if (err)
823 return err;
824 if (dentry->d_inode == NULL) {
825 exp_put(exp);
826 err = nfserr_noent;
827 } else
828 secinfo->si_exp = exp;
829 dput(dentry);
J. Bruce Fields56560b92010-12-16 09:57:15 -0500830 if (cstate->minorversion)
831 /* See rfc 5661 section 2.6.3.1.1.8 */
832 fh_put(&cstate->current_fh);
Andy Adamsondcb488a32007-07-17 04:04:51 -0700833 return err;
834}
835
836static __be32
J. Bruce Fields04f4ad12010-12-16 09:51:13 -0500837nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
838 struct nfsd4_secinfo_no_name *sin)
839{
840 __be32 err;
841
842 switch (sin->sin_style) {
843 case NFS4_SECINFO_STYLE4_CURRENT_FH:
844 break;
845 case NFS4_SECINFO_STYLE4_PARENT:
846 err = nfsd4_do_lookupp(rqstp, &cstate->current_fh);
847 if (err)
848 return err;
849 break;
850 default:
851 return nfserr_inval;
852 }
853 exp_get(cstate->current_fh.fh_export);
854 sin->sin_exp = cstate->current_fh.fh_export;
855 fh_put(&cstate->current_fh);
856 return nfs_ok;
857}
858
859static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800860nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
861 struct nfsd4_setattr *setattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862{
Al Virob37ad282006-10-19 23:28:59 -0700863 __be32 status = nfs_ok;
Al Viro96f6f982012-04-12 23:47:00 -0400864 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 if (setattr->sa_iattr.ia_valid & ATTR_SIZE) {
867 nfs4_lock_state();
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400868 status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate,
J. Bruce Fields6150ef02009-02-21 13:36:16 -0800869 &setattr->sa_stateid, WR_STATE, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870 nfs4_unlock_state();
J. Bruce Fields375c5542006-01-18 17:43:33 -0800871 if (status) {
Greg Banks3e3b4802006-10-02 02:17:41 -0700872 dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n");
J. Bruce Fields375c5542006-01-18 17:43:33 -0800873 return status;
874 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 }
Al Viro96f6f982012-04-12 23:47:00 -0400876 err = fh_want_write(&cstate->current_fh);
877 if (err)
878 return nfserrno(err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879 status = nfs_ok;
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800880
881 status = check_attr_support(rqstp, cstate, setattr->sa_bmval,
882 nfsd_attrmask);
883 if (status)
884 goto out;
885
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886 if (setattr->sa_acl != NULL)
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800887 status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh,
888 setattr->sa_acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889 if (status)
Dave Hansen18f335a2008-02-15 14:37:38 -0800890 goto out;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800891 status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892 0, (time_t)0);
Dave Hansen18f335a2008-02-15 14:37:38 -0800893out:
Al Virobad0dcf2011-11-23 12:03:18 -0500894 fh_drop_write(&cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895 return status;
896}
897
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500898static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write)
899{
900 int i = 1;
901 int buflen = write->wr_buflen;
902
903 vec[0].iov_base = write->wr_head.iov_base;
904 vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len);
905 buflen -= vec[0].iov_len;
906
907 while (buflen) {
908 vec[i].iov_base = page_address(write->wr_pagelist[i - 1]);
909 vec[i].iov_len = min_t(int, PAGE_SIZE, buflen);
910 buflen -= vec[i].iov_len;
911 i++;
912 }
913 return i;
914}
915
J.Bruce Fields71911552006-12-13 00:35:29 -0800916static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800917nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
918 struct nfsd4_write *write)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919{
920 stateid_t *stateid = &write->wr_stateid;
921 struct file *filp = NULL;
Al Virob37ad282006-10-19 23:28:59 -0700922 __be32 status = nfs_ok;
David Shaw31dec252009-03-05 20:16:14 -0500923 unsigned long cnt;
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500924 int nvecs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925
926 /* no need to check permission - this will be done in nfsd_write() */
927
928 if (write->wr_offset >= OFFSET_MAX)
929 return nfserr_inval;
930
931 nfs4_lock_state();
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400932 status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
933 cstate, stateid, WR_STATE, &filp);
NeilBrown7e06b7f2005-06-23 22:03:13 -0700934 if (filp)
935 get_file(filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936 nfs4_unlock_state();
937
J. Bruce Fields375c5542006-01-18 17:43:33 -0800938 if (status) {
939 dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
940 return status;
941 }
942
David Shaw31dec252009-03-05 20:16:14 -0500943 cnt = write->wr_buflen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 write->wr_how_written = write->wr_stable_how;
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300945 gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500947 nvecs = fill_in_write_vector(rqstp->rq_vec, write);
948 WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec));
949
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800950 status = nfsd_write(rqstp, &cstate->current_fh, filp,
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500951 write->wr_offset, rqstp->rq_vec, nvecs,
David Shaw31dec252009-03-05 20:16:14 -0500952 &cnt, &write->wr_how_written);
NeilBrown7e06b7f2005-06-23 22:03:13 -0700953 if (filp)
954 fput(filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
David Shaw31dec252009-03-05 20:16:14 -0500956 write->wr_bytes_written = cnt;
957
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959}
960
961/* This routine never returns NFS_OK! If there are no other errors, it
962 * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the
963 * attributes matched. VERIFY is implemented by mapping NFSERR_SAME
964 * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK.
965 */
Al Virob37ad282006-10-19 23:28:59 -0700966static __be32
J.Bruce Fieldsc954e2a2006-12-13 00:35:31 -0800967_nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800968 struct nfsd4_verify *verify)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969{
Al Viro2ebbc012006-10-19 23:28:58 -0700970 __be32 *buf, *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971 int count;
Al Virob37ad282006-10-19 23:28:59 -0700972 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200974 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975 if (status)
976 return status;
977
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800978 status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL);
979 if (status)
980 return status;
981
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982 if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR)
983 || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1))
984 return nfserr_inval;
985 if (verify->ve_attrlen & 3)
986 return nfserr_inval;
987
988 /* count in words:
989 * bitmap_len(1) + bitmap(2) + attr_len(1) = 4
990 */
991 count = 4 + (verify->ve_attrlen >> 2);
992 buf = kmalloc(count << 2, GFP_KERNEL);
993 if (!buf)
J. Bruce Fields3e772462011-08-10 19:07:33 -0400994 return nfserr_jukebox;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800996 status = nfsd4_encode_fattr(&cstate->current_fh,
997 cstate->current_fh.fh_export,
998 cstate->current_fh.fh_dentry, buf,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999 &count, verify->ve_bmval,
Frank Filz406a7ea2007-11-27 11:34:05 -08001000 rqstp, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
1002 /* this means that nfsd4_encode_fattr() ran out of space */
1003 if (status == nfserr_resource && count == 0)
1004 status = nfserr_not_same;
1005 if (status)
1006 goto out_kfree;
1007
Benny Halevy95ec28c2009-04-03 08:29:08 +03001008 /* skip bitmap */
1009 p = buf + 1 + ntohl(buf[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010 status = nfserr_not_same;
1011 if (ntohl(*p++) != verify->ve_attrlen)
1012 goto out_kfree;
1013 if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen))
1014 status = nfserr_same;
1015
1016out_kfree:
1017 kfree(buf);
1018 return status;
1019}
1020
J.Bruce Fieldsc954e2a2006-12-13 00:35:31 -08001021static __be32
1022nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
1023 struct nfsd4_verify *verify)
1024{
1025 __be32 status;
1026
1027 status = _nfsd4_verify(rqstp, cstate, verify);
1028 return status == nfserr_not_same ? nfs_ok : status;
1029}
1030
1031static __be32
1032nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
1033 struct nfsd4_verify *verify)
1034{
1035 __be32 status;
1036
1037 status = _nfsd4_verify(rqstp, cstate, verify);
1038 return status == nfserr_same ? nfs_ok : status;
1039}
1040
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041/*
1042 * NULL call.
1043 */
Al Viro7111c662006-10-19 23:28:45 -07001044static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
1046{
1047 return nfs_ok;
1048}
1049
Shankar Anande2b20952006-07-10 04:45:44 -07001050static inline void nfsd4_increment_op_stats(u32 opnum)
1051{
1052 if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP)
1053 nfsdstats.nfs4_opcount[opnum]++;
1054}
1055
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001056typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
1057 void *);
Mi Jinlong58e7b332011-08-28 18:18:56 +08001058typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op);
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001059typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *);
1060typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *);
Mi Jinlong58e7b332011-08-28 18:18:56 +08001061
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001062enum nfsd4_op_flags {
1063 ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */
Mi Jinlong5ece3ca2011-02-18 09:08:31 +08001064 ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */
1065 ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */
J. Bruce Fields68d93182011-04-08 17:00:50 -04001066 /* For rfc 5661 section 2.6.3.1.1: */
1067 OP_HANDLES_WRONGSEC = 1 << 3,
1068 OP_IS_PUTFH_LIKE = 1 << 4,
J. Bruce Fields10910062011-01-24 12:11:02 -05001069 /*
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001070 * These are the ops whose result size we estimate before
1071 * encoding, to avoid performing an op then not being able to
1072 * respond or cache a response. This includes writes and setattrs
1073 * as well as the operations usually called "nonidempotent":
1074 */
1075 OP_MODIFIES_SOMETHING = 1 << 5,
1076 /*
1077 * Cache compounds containing these ops in the xid-based drc:
J. Bruce Fields10910062011-01-24 12:11:02 -05001078 * We use the DRC for compounds containing non-idempotent
1079 * operations, *except* those that are 4.1-specific (since
1080 * sessions provide their own EOS), and except for stateful
1081 * operations other than setclientid and setclientid_confirm
1082 * (since sequence numbers provide EOS for open, lock, etc in
1083 * the v4.0 case).
1084 */
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001085 OP_CACHEME = 1 << 6,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001086 /*
1087 * These are ops which clear current state id.
1088 */
1089 OP_CLEAR_STATEID = 1 << 7,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001090};
1091
1092struct nfsd4_operation {
1093 nfsd4op_func op_func;
1094 u32 op_flags;
1095 char *op_name;
Mi Jinlong58e7b332011-08-28 18:18:56 +08001096 /* Try to get response size before operation */
1097 nfsd4op_rsize op_rsize_bop;
Bryan Schumaker24ff99c2012-08-14 15:55:08 -04001098 stateid_getter op_get_currentstateid;
1099 stateid_setter op_set_currentstateid;
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001100};
1101
1102static struct nfsd4_operation nfsd4_ops[];
1103
Trond Myklebust8f199b82012-03-20 15:11:17 -04001104#ifdef NFSD_DEBUG
Adrian Bunkf1c7f792008-08-08 19:26:42 +03001105static const char *nfsd4_op_name(unsigned opnum);
Trond Myklebust8f199b82012-03-20 15:11:17 -04001106#endif
Benny Halevyb001a1b2008-07-02 11:15:03 +03001107
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108/*
J. Bruce Fields57716352010-04-21 12:27:19 -04001109 * Enforce NFSv4.1 COMPOUND ordering rules:
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001110 *
J. Bruce Fields57716352010-04-21 12:27:19 -04001111 * Also note, enforced elsewhere:
1112 * - SEQUENCE other than as first op results in
1113 * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().)
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001114 * - BIND_CONN_TO_SESSION must be the only op in its compound.
1115 * (Enforced in nfsd4_bind_conn_to_session().)
J. Bruce Fields57716352010-04-21 12:27:19 -04001116 * - DESTROY_SESSION must be the final operation in a compound, if
1117 * sessionid's in SEQUENCE and DESTROY_SESSION are the same.
1118 * (Enforced in nfsd4_destroy_session().)
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001119 */
J. Bruce Fields57716352010-04-21 12:27:19 -04001120static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args)
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001121{
J. Bruce Fields57716352010-04-21 12:27:19 -04001122 struct nfsd4_op *op = &args->ops[0];
1123
1124 /* These ordering requirements don't apply to NFSv4.0: */
1125 if (args->minorversion == 0)
1126 return nfs_ok;
1127 /* This is weird, but OK, not our problem: */
1128 if (args->opcnt == 0)
1129 return nfs_ok;
1130 if (op->status == nfserr_op_illegal)
1131 return nfs_ok;
1132 if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP))
1133 return nfserr_op_not_in_session;
1134 if (op->opnum == OP_SEQUENCE)
1135 return nfs_ok;
1136 if (args->opcnt != 1)
1137 return nfserr_not_only_op;
1138 return nfs_ok;
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001139}
1140
J. Bruce Fields22b03212011-04-09 11:23:24 -04001141static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op)
1142{
1143 return &nfsd4_ops[op->opnum];
1144}
1145
J. Bruce Fields10910062011-01-24 12:11:02 -05001146bool nfsd4_cache_this_op(struct nfsd4_op *op)
1147{
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001148 return OPDESC(op)->op_flags & OP_CACHEME;
J. Bruce Fields10910062011-01-24 12:11:02 -05001149}
1150
J. Bruce Fields68d93182011-04-08 17:00:50 -04001151static bool need_wrongsec_check(struct svc_rqst *rqstp)
1152{
1153 struct nfsd4_compoundres *resp = rqstp->rq_resp;
1154 struct nfsd4_compoundargs *argp = rqstp->rq_argp;
1155 struct nfsd4_op *this = &argp->ops[resp->opcnt - 1];
1156 struct nfsd4_op *next = &argp->ops[resp->opcnt];
1157 struct nfsd4_operation *thisd;
1158 struct nfsd4_operation *nextd;
1159
1160 thisd = OPDESC(this);
1161 /*
1162 * Most ops check wronsec on our own; only the putfh-like ops
1163 * have special rules.
1164 */
1165 if (!(thisd->op_flags & OP_IS_PUTFH_LIKE))
1166 return false;
1167 /*
1168 * rfc 5661 2.6.3.1.1.6: don't bother erroring out a
1169 * put-filehandle operation if we're not going to use the
1170 * result:
1171 */
1172 if (argp->opcnt == resp->opcnt)
1173 return false;
1174
1175 nextd = OPDESC(next);
1176 /*
1177 * Rest of 2.6.3.1.1: certain operations will return WRONGSEC
1178 * errors themselves as necessary; others should check for them
1179 * now:
1180 */
1181 return !(nextd->op_flags & OP_HANDLES_WRONGSEC);
1182}
1183
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001184/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185 * COMPOUND call.
1186 */
Al Viro7111c662006-10-19 23:28:45 -07001187static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188nfsd4_proc_compound(struct svc_rqst *rqstp,
1189 struct nfsd4_compoundargs *args,
1190 struct nfsd4_compoundres *resp)
1191{
1192 struct nfsd4_op *op;
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001193 struct nfsd4_operation *opdesc;
Andy Adamsone354d572009-03-28 11:30:52 +03001194 struct nfsd4_compound_state *cstate = &resp->cstate;
J.Bruce Fieldse5710192006-12-13 00:35:20 -08001195 int slack_bytes;
Mi Jinlong58e7b332011-08-28 18:18:56 +08001196 u32 plen = 0;
Al Virob37ad282006-10-19 23:28:59 -07001197 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199 resp->xbuf = &rqstp->rq_res;
Andy Adamsone354d572009-03-28 11:30:52 +03001200 resp->p = rqstp->rq_res.head[0].iov_base +
1201 rqstp->rq_res.head[0].iov_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202 resp->tagp = resp->p;
1203 /* reserve space for: taglen, tag, and opcnt */
1204 resp->p += 2 + XDR_QUADLEN(args->taglen);
1205 resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE;
1206 resp->taglen = args->taglen;
1207 resp->tag = args->tag;
1208 resp->opcnt = 0;
1209 resp->rqstp = rqstp;
Andy Adamsond87a8ad2009-04-03 08:28:53 +03001210 resp->cstate.minorversion = args->minorversion;
Andy Adamsone354d572009-03-28 11:30:52 +03001211 resp->cstate.replay_owner = NULL;
J. Bruce Fields26c0c752010-04-24 15:35:43 -04001212 resp->cstate.session = NULL;
Andy Adamsone354d572009-03-28 11:30:52 +03001213 fh_init(&resp->cstate.current_fh, NFS4_FHSIZE);
1214 fh_init(&resp->cstate.save_fh, NFS4_FHSIZE);
NeilBrown8ff30fa2010-08-12 17:04:07 +10001215 /*
1216 * Don't use the deferral mechanism for NFSv4; compounds make it
1217 * too hard to avoid non-idempotency problems.
1218 */
1219 rqstp->rq_usedeferral = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220
1221 /*
1222 * According to RFC3010, this takes precedence over all other errors.
1223 */
1224 status = nfserr_minor_vers_mismatch;
Benny Halevy8daf2202009-04-03 08:28:59 +03001225 if (args->minorversion > nfsd_supported_minorversion)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226 goto out;
1227
J. Bruce Fields57716352010-04-21 12:27:19 -04001228 status = nfs41_check_op_ordering(args);
1229 if (status) {
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001230 op = &args->ops[0];
J. Bruce Fields57716352010-04-21 12:27:19 -04001231 op->status = status;
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001232 goto encode_op;
1233 }
1234
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 while (!status && resp->opcnt < args->opcnt) {
1236 op = &args->ops[resp->opcnt++];
1237
Benny Halevyb001a1b2008-07-02 11:15:03 +03001238 dprintk("nfsv4 compound op #%d/%d: %d (%s)\n",
1239 resp->opcnt, args->opcnt, op->opnum,
1240 nfsd4_op_name(op->opnum));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241 /*
1242 * The XDR decode routines may have pre-set op->status;
1243 * for example, if there is a miscellaneous XDR error
1244 * it will be set to nfserr_bad_xdr.
1245 */
1246 if (op->status)
1247 goto encode_op;
1248
1249 /* We must be able to encode a successful response to
1250 * this operation, with enough room left over to encode a
1251 * failed response to the next operation. If we don't
1252 * have enough room, fail with ERR_RESOURCE.
1253 */
J.Bruce Fieldse5710192006-12-13 00:35:20 -08001254 slack_bytes = (char *)resp->end - (char *)resp->p;
1255 if (slack_bytes < COMPOUND_SLACK_SPACE
1256 + COMPOUND_ERR_SLACK_SPACE) {
1257 BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258 op->status = nfserr_resource;
1259 goto encode_op;
1260 }
1261
J. Bruce Fields22b03212011-04-09 11:23:24 -04001262 opdesc = OPDESC(op);
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001263
J.Bruce Fieldsca364312006-12-13 00:35:27 -08001264 if (!cstate->current_fh.fh_dentry) {
J.Bruce Fields27d630e2006-12-13 00:35:43 -08001265 if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) {
J.Bruce Fields42ca0992006-10-04 02:16:20 -07001266 op->status = nfserr_nofilehandle;
1267 goto encode_op;
1268 }
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001269 } else if (cstate->current_fh.fh_export->ex_fslocs.migrated &&
1270 !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) {
J.Bruce Fields42ca0992006-10-04 02:16:20 -07001271 op->status = nfserr_moved;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 goto encode_op;
1273 }
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001274
Mi Jinlong58e7b332011-08-28 18:18:56 +08001275 /* If op is non-idempotent */
1276 if (opdesc->op_flags & OP_MODIFIES_SOMETHING) {
1277 plen = opdesc->op_rsize_bop(rqstp, op);
1278 op->status = nfsd4_check_resp_size(resp, plen);
1279 }
1280
1281 if (op->status)
1282 goto encode_op;
1283
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001284 if (opdesc->op_func) {
1285 if (opdesc->op_get_currentstateid)
1286 opdesc->op_get_currentstateid(cstate, &op->u);
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001287 op->status = opdesc->op_func(rqstp, cstate, &op->u);
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001288 } else
Linus Torvalds1da177e2005-04-16 15:20:36 -07001289 BUG_ON(op->status == nfs_ok);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001290
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001291 if (!op->status) {
1292 if (opdesc->op_set_currentstateid)
1293 opdesc->op_set_currentstateid(cstate, &op->u);
1294
1295 if (opdesc->op_flags & OP_CLEAR_STATEID)
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +01001296 clear_current_stateid(cstate);
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001297
1298 if (need_wrongsec_check(rqstp))
1299 op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp);
1300 }
J. Bruce Fields68d93182011-04-08 17:00:50 -04001301
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302encode_op:
Andy Adamson49557cc2009-07-23 19:02:16 -04001303 /* Only from SEQUENCE */
Andy Adamsonda3846a2009-04-03 08:28:22 +03001304 if (resp->cstate.status == nfserr_replay_cache) {
1305 dprintk("%s NFS4.1 replay from cache\n", __func__);
Andy Adamsonabfabf82009-07-23 19:02:18 -04001306 status = op->status;
Andy Adamsonda3846a2009-04-03 08:28:22 +03001307 goto out;
1308 }
Al Viroa90b0612006-10-19 23:29:03 -07001309 if (op->status == nfserr_replay_me) {
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001310 op->replay = &cstate->replay_owner->so_replay;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001311 nfsd4_encode_replay(resp, op);
1312 status = op->status = op->replay->rp_status;
1313 } else {
1314 nfsd4_encode_operation(resp, op);
1315 status = op->status;
1316 }
Benny Halevy04077172008-12-15 19:40:49 +02001317
1318 dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n",
1319 args->ops, args->opcnt, resp->opcnt, op->opnum,
1320 be32_to_cpu(status));
1321
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001322 if (cstate->replay_owner) {
J. Bruce Fields5ec094c2011-08-30 17:02:48 -04001323 nfs4_unlock_state();
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001324 cstate->replay_owner = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325 }
NeilBrown7e06b7f2005-06-23 22:03:13 -07001326 /* XXX Ugh, we need to get rid of this kind of special case: */
1327 if (op->opnum == OP_READ && op->u.read.rd_filp)
1328 fput(op->u.read.rd_filp);
Shankar Anande2b20952006-07-10 04:45:44 -07001329
1330 nfsd4_increment_op_stats(op->opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001331 }
1332
Andy Adamsonda3846a2009-04-03 08:28:22 +03001333 resp->cstate.status = status;
Andy Adamsone354d572009-03-28 11:30:52 +03001334 fh_put(&resp->cstate.current_fh);
1335 fh_put(&resp->cstate.save_fh);
1336 BUG_ON(resp->cstate.replay_owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337out:
Andy Adamson2f425872009-04-03 08:27:32 +03001338 /* Reset deferral mechanism for RPC deferrals */
1339 rqstp->rq_usedeferral = 1;
J. Bruce Fields3b12cd92008-05-05 17:17:44 -04001340 dprintk("nfsv4 compound returned %d\n", ntohl(status));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341 return status;
1342}
1343
Mi Jinlong58e7b332011-08-28 18:18:56 +08001344#define op_encode_hdr_size (2)
1345#define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
1346#define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
1347#define op_encode_change_info_maxsz (5)
1348#define nfs4_fattr_bitmap_maxsz (4)
1349
1350#define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
1351#define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz)
1352
1353#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
1354
1355#define op_encode_ace_maxsz (3 + nfs4_owner_maxsz)
1356#define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \
1357 op_encode_ace_maxsz)
1358
1359#define op_encode_channel_attrs_maxsz (6 + 1 + 1)
1360
1361static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1362{
1363 return (op_encode_hdr_size) * sizeof(__be32);
1364}
1365
1366static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1367{
1368 return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32);
1369}
1370
1371static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1372{
1373 return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
1374}
1375
1376static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1377{
1378 return (op_encode_hdr_size + op_encode_change_info_maxsz
1379 + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
1380}
1381
1382static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1383{
1384 return (op_encode_hdr_size + op_encode_change_info_maxsz)
1385 * sizeof(__be32);
1386}
1387
1388static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1389{
1390 return (op_encode_hdr_size + op_encode_lock_denied_maxsz)
1391 * sizeof(__be32);
1392}
1393
1394static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1395{
1396 return (op_encode_hdr_size + op_encode_stateid_maxsz
1397 + op_encode_change_info_maxsz + 1
1398 + nfs4_fattr_bitmap_maxsz
1399 + op_encode_delegation_maxsz) * sizeof(__be32);
1400}
1401
1402static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1403{
1404 u32 maxcount = 0, rlen = 0;
1405
1406 maxcount = svc_max_payload(rqstp);
1407 rlen = op->u.read.rd_length;
1408
1409 if (rlen > maxcount)
1410 rlen = maxcount;
1411
1412 return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen;
1413}
1414
1415static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1416{
1417 u32 rlen = op->u.readdir.rd_maxcount;
1418
1419 if (rlen > PAGE_SIZE)
1420 rlen = PAGE_SIZE;
1421
1422 return (op_encode_hdr_size + op_encode_verifier_maxsz)
1423 * sizeof(__be32) + rlen;
1424}
1425
1426static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1427{
1428 return (op_encode_hdr_size + op_encode_change_info_maxsz)
1429 * sizeof(__be32);
1430}
1431
1432static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1433{
1434 return (op_encode_hdr_size + op_encode_change_info_maxsz
1435 + op_encode_change_info_maxsz) * sizeof(__be32);
1436}
1437
1438static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1439{
1440 return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
1441}
1442
1443static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1444{
1445 return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32);
1446}
1447
1448static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1449{
1450 return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
1451}
1452
1453static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1454{
1455 return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\
1456 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\
1457 2 + /*eir_server_owner.so_minor_id */\
1458 /* eir_server_owner.so_major_id<> */\
1459 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
1460 /* eir_server_scope<> */\
1461 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
1462 1 + /* eir_server_impl_id array length */\
1463 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32);
1464}
1465
1466static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1467{
1468 return (op_encode_hdr_size + \
1469 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\
1470 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32);
1471}
1472
1473static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1474{
1475 return (op_encode_hdr_size + \
1476 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\
1477 2 + /* csr_sequence, csr_flags */\
1478 op_encode_channel_attrs_maxsz + \
1479 op_encode_channel_attrs_maxsz) * sizeof(__be32);
1480}
1481
Benny Halevy20766012009-03-28 11:32:05 +03001482static struct nfsd4_operation nfsd4_ops[] = {
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001483 [OP_ACCESS] = {
1484 .op_func = (nfsd4op_func)nfsd4_access,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001485 .op_name = "OP_ACCESS",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001486 },
1487 [OP_CLOSE] = {
1488 .op_func = (nfsd4op_func)nfsd4_close,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001489 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001490 .op_name = "OP_CLOSE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001491 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001492 .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid,
1493 .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001494 },
1495 [OP_COMMIT] = {
1496 .op_func = (nfsd4op_func)nfsd4_commit,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001497 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001498 .op_name = "OP_COMMIT",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001499 .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001500 },
1501 [OP_CREATE] = {
1502 .op_func = (nfsd4op_func)nfsd4_create,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001503 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001504 .op_name = "OP_CREATE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001505 .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001506 },
1507 [OP_DELEGRETURN] = {
1508 .op_func = (nfsd4op_func)nfsd4_delegreturn,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001509 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001510 .op_name = "OP_DELEGRETURN",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001511 .op_rsize_bop = nfsd4_only_status_rsize,
Tigran Mkrtchyan9428fe12012-02-13 22:55:31 +01001512 .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001513 },
1514 [OP_GETATTR] = {
1515 .op_func = (nfsd4op_func)nfsd4_getattr,
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001516 .op_flags = ALLOWED_ON_ABSENT_FS,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001517 .op_name = "OP_GETATTR",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001518 },
1519 [OP_GETFH] = {
1520 .op_func = (nfsd4op_func)nfsd4_getfh,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001521 .op_name = "OP_GETFH",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001522 },
1523 [OP_LINK] = {
1524 .op_func = (nfsd4op_func)nfsd4_link,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001525 .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING
1526 | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001527 .op_name = "OP_LINK",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001528 .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001529 },
1530 [OP_LOCK] = {
1531 .op_func = (nfsd4op_func)nfsd4_lock,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001532 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001533 .op_name = "OP_LOCK",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001534 .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
Tigran Mkrtchyan62cd4a52012-02-13 22:55:25 +01001535 .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001536 },
1537 [OP_LOCKT] = {
1538 .op_func = (nfsd4op_func)nfsd4_lockt,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001539 .op_name = "OP_LOCKT",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001540 },
1541 [OP_LOCKU] = {
1542 .op_func = (nfsd4op_func)nfsd4_locku,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001543 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001544 .op_name = "OP_LOCKU",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001545 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan62cd4a52012-02-13 22:55:25 +01001546 .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001547 },
1548 [OP_LOOKUP] = {
1549 .op_func = (nfsd4op_func)nfsd4_lookup,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001550 .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001551 .op_name = "OP_LOOKUP",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001552 },
1553 [OP_LOOKUPP] = {
1554 .op_func = (nfsd4op_func)nfsd4_lookupp,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001555 .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001556 .op_name = "OP_LOOKUPP",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001557 },
1558 [OP_NVERIFY] = {
1559 .op_func = (nfsd4op_func)nfsd4_nverify,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001560 .op_name = "OP_NVERIFY",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001561 },
1562 [OP_OPEN] = {
1563 .op_func = (nfsd4op_func)nfsd4_open,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001564 .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001565 .op_name = "OP_OPEN",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001566 .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001567 .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001568 },
1569 [OP_OPEN_CONFIRM] = {
1570 .op_func = (nfsd4op_func)nfsd4_open_confirm,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001571 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001572 .op_name = "OP_OPEN_CONFIRM",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001573 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001574 },
1575 [OP_OPEN_DOWNGRADE] = {
1576 .op_func = (nfsd4op_func)nfsd4_open_downgrade,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001577 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001578 .op_name = "OP_OPEN_DOWNGRADE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001579 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan9428fe12012-02-13 22:55:31 +01001580 .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid,
1581 .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001582 },
1583 [OP_PUTFH] = {
1584 .op_func = (nfsd4op_func)nfsd4_putfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001585 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001586 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1587 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001588 .op_name = "OP_PUTFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001589 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001590 },
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001591 [OP_PUTPUBFH] = {
J. Bruce Fieldsa1c8c4d2009-03-09 12:17:29 -04001592 .op_func = (nfsd4op_func)nfsd4_putrootfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001593 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001594 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1595 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001596 .op_name = "OP_PUTPUBFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001597 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001598 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001599 [OP_PUTROOTFH] = {
1600 .op_func = (nfsd4op_func)nfsd4_putrootfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001601 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001602 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1603 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001604 .op_name = "OP_PUTROOTFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001605 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001606 },
1607 [OP_READ] = {
1608 .op_func = (nfsd4op_func)nfsd4_read,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001609 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001610 .op_name = "OP_READ",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001611 .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize,
Tigran Mkrtchyan30813e22012-02-13 22:55:26 +01001612 .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001613 },
1614 [OP_READDIR] = {
1615 .op_func = (nfsd4op_func)nfsd4_readdir,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001616 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001617 .op_name = "OP_READDIR",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001618 .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001619 },
1620 [OP_READLINK] = {
1621 .op_func = (nfsd4op_func)nfsd4_readlink,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001622 .op_name = "OP_READLINK",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001623 },
1624 [OP_REMOVE] = {
1625 .op_func = (nfsd4op_func)nfsd4_remove,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001626 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001627 .op_name = "OP_REMOVE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001628 .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001629 },
1630 [OP_RENAME] = {
1631 .op_func = (nfsd4op_func)nfsd4_rename,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001632 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001633 .op_name = "OP_RENAME",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001634 .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001635 },
1636 [OP_RENEW] = {
1637 .op_func = (nfsd4op_func)nfsd4_renew,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001638 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
1639 | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001640 .op_name = "OP_RENEW",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001641 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
1642
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001643 },
1644 [OP_RESTOREFH] = {
1645 .op_func = (nfsd4op_func)nfsd4_restorefh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001646 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Mi Jinlong58e7b332011-08-28 18:18:56 +08001647 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001648 .op_name = "OP_RESTOREFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001649 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001650 },
1651 [OP_SAVEFH] = {
1652 .op_func = (nfsd4op_func)nfsd4_savefh,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001653 .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001654 .op_name = "OP_SAVEFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001655 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001656 },
Andy Adamsondcb488a32007-07-17 04:04:51 -07001657 [OP_SECINFO] = {
1658 .op_func = (nfsd4op_func)nfsd4_secinfo,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001659 .op_flags = OP_HANDLES_WRONGSEC,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001660 .op_name = "OP_SECINFO",
Andy Adamsondcb488a32007-07-17 04:04:51 -07001661 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001662 [OP_SETATTR] = {
1663 .op_func = (nfsd4op_func)nfsd4_setattr,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001664 .op_name = "OP_SETATTR",
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001665 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001666 .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize,
Tigran Mkrtchyan1e97b512012-02-13 22:55:30 +01001667 .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001668 },
1669 [OP_SETCLIENTID] = {
1670 .op_func = (nfsd4op_func)nfsd4_setclientid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001671 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001672 | OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001673 .op_name = "OP_SETCLIENTID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001674 .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001675 },
1676 [OP_SETCLIENTID_CONFIRM] = {
1677 .op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001678 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001679 | OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001680 .op_name = "OP_SETCLIENTID_CONFIRM",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001681 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001682 },
1683 [OP_VERIFY] = {
1684 .op_func = (nfsd4op_func)nfsd4_verify,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001685 .op_name = "OP_VERIFY",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001686 },
1687 [OP_WRITE] = {
1688 .op_func = (nfsd4op_func)nfsd4_write,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001689 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001690 .op_name = "OP_WRITE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001691 .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
Tigran Mkrtchyan30813e22012-02-13 22:55:26 +01001692 .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001693 },
1694 [OP_RELEASE_LOCKOWNER] = {
1695 .op_func = (nfsd4op_func)nfsd4_release_lockowner,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001696 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
1697 | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001698 .op_name = "OP_RELEASE_LOCKOWNER",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001699 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001700 },
Andy Adamson069b6ad2009-04-03 08:27:58 +03001701
1702 /* NFSv4.1 operations */
1703 [OP_EXCHANGE_ID] = {
1704 .op_func = (nfsd4op_func)nfsd4_exchange_id,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001705 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1706 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001707 .op_name = "OP_EXCHANGE_ID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001708 .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001709 },
J. Bruce Fieldscb73a9f2012-11-01 18:09:48 -04001710 [OP_BACKCHANNEL_CTL] = {
1711 .op_func = (nfsd4op_func)nfsd4_backchannel_ctl,
1712 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
1713 .op_name = "OP_BACKCHANNEL_CTL",
1714 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
1715 },
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001716 [OP_BIND_CONN_TO_SESSION] = {
1717 .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001718 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1719 | OP_MODIFIES_SOMETHING,
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001720 .op_name = "OP_BIND_CONN_TO_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001721 .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize,
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001722 },
Andy Adamson069b6ad2009-04-03 08:27:58 +03001723 [OP_CREATE_SESSION] = {
1724 .op_func = (nfsd4op_func)nfsd4_create_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001725 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1726 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001727 .op_name = "OP_CREATE_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001728 .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001729 },
1730 [OP_DESTROY_SESSION] = {
1731 .op_func = (nfsd4op_func)nfsd4_destroy_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001732 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1733 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001734 .op_name = "OP_DESTROY_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001735 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001736 },
1737 [OP_SEQUENCE] = {
1738 .op_func = (nfsd4op_func)nfsd4_sequence,
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001739 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001740 .op_name = "OP_SEQUENCE",
1741 },
Benny Halevy094b5d72011-06-16 11:39:10 -04001742 [OP_DESTROY_CLIENTID] = {
Mi Jinlong345c2842011-10-20 17:51:39 +08001743 .op_func = (nfsd4op_func)nfsd4_destroy_clientid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001744 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1745 | OP_MODIFIES_SOMETHING,
Benny Halevy094b5d72011-06-16 11:39:10 -04001746 .op_name = "OP_DESTROY_CLIENTID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001747 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Benny Halevy094b5d72011-06-16 11:39:10 -04001748 },
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001749 [OP_RECLAIM_COMPLETE] = {
1750 .op_func = (nfsd4op_func)nfsd4_reclaim_complete,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001751 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001752 .op_name = "OP_RECLAIM_COMPLETE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001753 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001754 },
J. Bruce Fields04f4ad12010-12-16 09:51:13 -05001755 [OP_SECINFO_NO_NAME] = {
1756 .op_func = (nfsd4op_func)nfsd4_secinfo_no_name,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001757 .op_flags = OP_HANDLES_WRONGSEC,
J. Bruce Fields04f4ad12010-12-16 09:51:13 -05001758 .op_name = "OP_SECINFO_NO_NAME",
1759 },
Bryan Schumaker17456802011-07-13 10:50:48 -04001760 [OP_TEST_STATEID] = {
1761 .op_func = (nfsd4op_func)nfsd4_test_stateid,
1762 .op_flags = ALLOWED_WITHOUT_FH,
1763 .op_name = "OP_TEST_STATEID",
1764 },
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001765 [OP_FREE_STATEID] = {
1766 .op_func = (nfsd4op_func)nfsd4_free_stateid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001767 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001768 .op_name = "OP_FREE_STATEID",
J. Bruce Fieldsa1dc6952012-12-17 18:17:13 -05001769 .op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001770 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001771 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001772};
1773
Trond Myklebust8f199b82012-03-20 15:11:17 -04001774#ifdef NFSD_DEBUG
Adrian Bunkf1c7f792008-08-08 19:26:42 +03001775static const char *nfsd4_op_name(unsigned opnum)
Benny Halevyb001a1b2008-07-02 11:15:03 +03001776{
1777 if (opnum < ARRAY_SIZE(nfsd4_ops))
1778 return nfsd4_ops[opnum].op_name;
1779 return "unknown_operation";
1780}
Trond Myklebust8f199b82012-03-20 15:11:17 -04001781#endif
Benny Halevyb001a1b2008-07-02 11:15:03 +03001782
Linus Torvalds1da177e2005-04-16 15:20:36 -07001783#define nfsd4_voidres nfsd4_voidargs
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784struct nfsd4_voidargs { int dummy; };
1785
Linus Torvalds1da177e2005-04-16 15:20:36 -07001786static struct svc_procedure nfsd_procedures4[2] = {
Yu Zhiguo0a93a472009-05-19 14:09:54 +08001787 [NFSPROC4_NULL] = {
1788 .pc_func = (svc_procfunc) nfsd4_proc_null,
1789 .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres,
1790 .pc_argsize = sizeof(struct nfsd4_voidargs),
1791 .pc_ressize = sizeof(struct nfsd4_voidres),
1792 .pc_cachetype = RC_NOCACHE,
1793 .pc_xdrressize = 1,
1794 },
1795 [NFSPROC4_COMPOUND] = {
1796 .pc_func = (svc_procfunc) nfsd4_proc_compound,
1797 .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs,
1798 .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres,
1799 .pc_argsize = sizeof(struct nfsd4_compoundargs),
1800 .pc_ressize = sizeof(struct nfsd4_compoundres),
J. Bruce Fields3e98abf2011-07-16 17:15:10 -04001801 .pc_release = nfsd4_release_compoundargs,
Yu Zhiguo0a93a472009-05-19 14:09:54 +08001802 .pc_cachetype = RC_NOCACHE,
1803 .pc_xdrressize = NFSD_BUFSIZE/4,
1804 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805};
1806
1807struct svc_version nfsd_version4 = {
1808 .vs_vers = 4,
1809 .vs_nproc = 2,
1810 .vs_proc = nfsd_procedures4,
1811 .vs_dispatch = nfsd_dispatch,
1812 .vs_xdrsize = NFS4_SVC_XDRSIZE,
1813};
1814
1815/*
1816 * Local variables:
1817 * c-basic-offset: 8
1818 * End:
1819 */