blob: 609e1e21133068d40334006409b22980a3c73fdf [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 Fieldsa4773c02009-02-02 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 Fieldsa4773c02009-02-02 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 Fields9d313b12013-02-28 12:51:49 -0800354 if (open->op_xdr_error) {
355 status = open->op_xdr_error;
356 goto out;
357 }
J. Bruce Fieldsfb553c02006-01-18 17:43:36 -0800358
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800359 status = nfsd4_check_open_attributes(rqstp, cstate, open);
360 if (status)
361 goto out;
362
J. Bruce Fieldsfb553c02006-01-18 17:43:36 -0800363 /* Openowner is now set, so sequence id will get bumped. Now we need
364 * these checks before we do any creates: */
J. Bruce Fieldscbd0d512006-02-07 12:58:32 -0800365 status = nfserr_grace;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300366 if (locks_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
J. Bruce Fieldscbd0d512006-02-07 12:58:32 -0800367 goto out;
368 status = nfserr_no_grace;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300369 if (!locks_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
J. Bruce Fieldscbd0d512006-02-07 12:58:32 -0800370 goto out;
J. Bruce Fieldsfb553c02006-01-18 17:43:36 -0800371
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 switch (open->op_claim_type) {
NeilBrown0dd3c192005-06-23 22:02:56 -0700373 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374 case NFS4_OPEN_CLAIM_NULL:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800375 status = do_open_lookup(rqstp, &cstate->current_fh,
376 open);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377 if (status)
378 goto out;
379 break;
380 case NFS4_OPEN_CLAIM_PREVIOUS:
J. Bruce Fieldsdad1c062011-09-12 12:24:13 -0400381 open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300382 status = nfs4_check_open_reclaim(&open->op_clientid,
383 cstate->minorversion,
384 nn);
Mi Jinlong0cf99b92011-11-23 10:48:40 +0800385 if (status)
386 goto out;
J. Bruce Fields8b289b22011-10-19 11:52:12 -0400387 case NFS4_OPEN_CLAIM_FH:
388 case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800389 status = do_open_fhandle(rqstp, &cstate->current_fh,
390 open);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391 if (status)
392 goto out;
393 break;
J. Bruce Fields8b289b22011-10-19 11:52:12 -0400394 case NFS4_OPEN_CLAIM_DELEG_PREV_FH:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 case NFS4_OPEN_CLAIM_DELEGATE_PREV:
J. Bruce Fieldsdad1c062011-09-12 12:24:13 -0400396 open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
J. Bruce Fields2fdada02007-07-27 16:10:37 -0400397 dprintk("NFSD: unsupported OPEN claim type %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 open->op_claim_type);
399 status = nfserr_notsupp;
400 goto out;
401 default:
J. Bruce Fields2fdada02007-07-27 16:10:37 -0400402 dprintk("NFSD: Invalid OPEN claim type %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 open->op_claim_type);
404 status = nfserr_inval;
405 goto out;
406 }
407 /*
408 * nfsd4_process_open2() does the actual opening of the file. If
409 * successful, it (1) truncates the file if open->op_truncate was
410 * set, (2) sets open->op_stateid, (3) sets open->op_delegation.
411 */
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800412 status = nfsd4_process_open2(rqstp, &cstate->current_fh, open);
J. Bruce Fields856121b2011-10-13 11:37:11 -0400413 WARN_ON(status && open->op_created);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414out:
J. Bruce Fieldsd29b20c2011-10-13 15:12:59 -0400415 nfsd4_cleanup_open_state(open, status);
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400416 if (open->op_openowner)
417 cstate->replay_owner = &open->op_openowner->oo_owner;
J. Bruce Fields9411b1d2013-04-01 16:37:12 -0400418 nfsd4_bump_seqid(cstate, status);
419 if (!cstate->replay_owner)
J. Bruce Fields5ec094c2011-08-30 17:02:48 -0400420 nfs4_unlock_state();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 return status;
422}
423
424/*
J. Bruce Fields9d313b12013-02-28 12:51:49 -0800425 * OPEN is the only seqid-mutating operation whose decoding can fail
426 * with a seqid-mutating error (specifically, decoding of user names in
427 * the attributes). Therefore we have to do some processing to look up
428 * the stateowner so that we can bump the seqid.
429 */
430static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op)
431{
432 struct nfsd4_open *open = (struct nfsd4_open *)&op->u;
433
434 if (!seqid_mutating_err(ntohl(op->status)))
435 return op->status;
436 if (nfsd4_has_session(cstate))
437 return op->status;
438 open->op_xdr_error = op->status;
439 return nfsd4_open(rqstp, cstate, open);
440}
441
442/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 * filehandle-manipulating ops.
444 */
J.Bruce Fields71911552006-12-13 00:35:29 -0800445static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800446nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
447 struct svc_fh **getfh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800449 if (!cstate->current_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 return nfserr_nofilehandle;
451
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800452 *getfh = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 return nfs_ok;
454}
455
J.Bruce Fields71911552006-12-13 00:35:29 -0800456static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800457nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
458 struct nfsd4_putfh *putfh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800460 fh_put(&cstate->current_fh);
461 cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen;
462 memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval,
463 putfh->pf_fhlen);
J. Bruce Fields68d93182011-04-08 17:00:50 -0400464 return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465}
466
J.Bruce Fields71911552006-12-13 00:35:29 -0800467static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800468nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
469 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470{
Al Virob37ad282006-10-19 23:28:59 -0700471 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800473 fh_put(&cstate->current_fh);
J. Bruce Fieldsdf547ef2007-07-17 04:04:43 -0700474 status = exp_pseudoroot(rqstp, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 return status;
476}
477
J.Bruce Fields71911552006-12-13 00:35:29 -0800478static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800479nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
480 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800482 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 return nfserr_restorefh;
484
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800485 fh_dup2(&cstate->current_fh, &cstate->save_fh);
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +0100486 if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) {
487 memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t));
488 SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG);
489 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 return nfs_ok;
491}
492
J.Bruce Fields71911552006-12-13 00:35:29 -0800493static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800494nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
495 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800497 if (!cstate->current_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 return nfserr_nofilehandle;
499
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800500 fh_dup2(&cstate->save_fh, &cstate->current_fh);
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +0100501 if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) {
502 memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t));
503 SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG);
504 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505 return nfs_ok;
506}
507
508/*
509 * misc nfsv4 ops
510 */
J.Bruce Fields71911552006-12-13 00:35:29 -0800511static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800512nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
513 struct nfsd4_access *access)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514{
515 if (access->ac_req_access & ~NFS3_ACCESS_FULL)
516 return nfserr_inval;
517
518 access->ac_resp_access = access->ac_req_access;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800519 return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access,
520 &access->ac_supported);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521}
522
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300523static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net)
Chuck Leverab4684d2012-03-02 17:13:50 -0500524{
525 __be32 verf[2];
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300526 struct nfsd_net *nn = net_generic(net, nfsd_net_id);
Chuck Leverab4684d2012-03-02 17:13:50 -0500527
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300528 verf[0] = (__be32)nn->nfssvc_boot.tv_sec;
529 verf[1] = (__be32)nn->nfssvc_boot.tv_usec;
Chuck Leverab4684d2012-03-02 17:13:50 -0500530 memcpy(verifier->data, verf, sizeof(verifier->data));
531}
532
J.Bruce Fields71911552006-12-13 00:35:29 -0800533static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800534nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
535 struct nfsd4_commit *commit)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536{
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300537 gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp));
J. Bruce Fields75c096f2011-08-15 18:39:32 -0400538 return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset,
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800539 commit->co_count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540}
541
Al Virob37ad282006-10-19 23:28:59 -0700542static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800543nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
544 struct nfsd4_create *create)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545{
546 struct svc_fh resfh;
Al Virob37ad282006-10-19 23:28:59 -0700547 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548 dev_t rdev;
549
550 fh_init(&resfh, NFS4_FHSIZE);
551
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200552 status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR,
553 NFSD_MAY_CREATE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554 if (status)
555 return status;
556
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800557 status = check_attr_support(rqstp, cstate, create->cr_bmval,
558 nfsd_attrmask);
559 if (status)
560 return status;
561
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562 switch (create->cr_type) {
563 case NF4LNK:
564 /* ugh! we have to null-terminate the linktext, or
565 * vfs_symlink() will choke. it is always safe to
566 * null-terminate by brute force, since at worst we
567 * will overwrite the first byte of the create namelen
568 * in the XDR buffer, which has already been extracted
569 * during XDR decode.
570 */
571 create->cr_linkname[create->cr_linklen] = 0;
572
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800573 status = nfsd_symlink(rqstp, &cstate->current_fh,
574 create->cr_name, create->cr_namelen,
575 create->cr_linkname, create->cr_linklen,
576 &resfh, &create->cr_iattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 break;
578
579 case NF4BLK:
580 rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
581 if (MAJOR(rdev) != create->cr_specdata1 ||
582 MINOR(rdev) != create->cr_specdata2)
583 return nfserr_inval;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800584 status = nfsd_create(rqstp, &cstate->current_fh,
585 create->cr_name, create->cr_namelen,
586 &create->cr_iattr, S_IFBLK, rdev, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 break;
588
589 case NF4CHR:
590 rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
591 if (MAJOR(rdev) != create->cr_specdata1 ||
592 MINOR(rdev) != create->cr_specdata2)
593 return nfserr_inval;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800594 status = nfsd_create(rqstp, &cstate->current_fh,
595 create->cr_name, create->cr_namelen,
596 &create->cr_iattr,S_IFCHR, rdev, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 break;
598
599 case NF4SOCK:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800600 status = nfsd_create(rqstp, &cstate->current_fh,
601 create->cr_name, create->cr_namelen,
602 &create->cr_iattr, S_IFSOCK, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603 break;
604
605 case NF4FIFO:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800606 status = nfsd_create(rqstp, &cstate->current_fh,
607 create->cr_name, create->cr_namelen,
608 &create->cr_iattr, S_IFIFO, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609 break;
610
611 case NF4DIR:
612 create->cr_iattr.ia_valid &= ~ATTR_SIZE;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800613 status = nfsd_create(rqstp, &cstate->current_fh,
614 create->cr_name, create->cr_namelen,
615 &create->cr_iattr, S_IFDIR, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616 break;
617
618 default:
619 status = nfserr_badtype;
620 }
621
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800622 if (status)
623 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800625 if (create->cr_acl != NULL)
626 do_set_nfs4_acl(rqstp, &resfh, create->cr_acl,
627 create->cr_bmval);
628
629 fh_unlock(&cstate->current_fh);
630 set_change_info(&create->cr_cinfo, &cstate->current_fh);
631 fh_dup2(&cstate->current_fh, &resfh);
632out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633 fh_put(&resfh);
634 return status;
635}
636
J.Bruce Fields71911552006-12-13 00:35:29 -0800637static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800638nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
639 struct nfsd4_getattr *getattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640{
Al Virob37ad282006-10-19 23:28:59 -0700641 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200643 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644 if (status)
645 return status;
646
647 if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
648 return nfserr_inval;
649
Andy Adamson7e705702009-04-03 08:29:11 +0300650 getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
651 getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
652 getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800654 getattr->ga_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655 return nfs_ok;
656}
657
J.Bruce Fields71911552006-12-13 00:35:29 -0800658static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800659nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
660 struct nfsd4_link *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661{
Al Virob37ad282006-10-19 23:28:59 -0700662 __be32 status = nfserr_nofilehandle;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800664 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 return status;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800666 status = nfsd_link(rqstp, &cstate->current_fh,
667 link->li_name, link->li_namelen, &cstate->save_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 if (!status)
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800669 set_change_info(&link->li_cinfo, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 return status;
671}
672
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500673static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674{
675 struct svc_fh tmp_fh;
Al Virob37ad282006-10-19 23:28:59 -0700676 __be32 ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677
678 fh_init(&tmp_fh, NFS4_FHSIZE);
J. Bruce Fieldsdf547ef2007-07-17 04:04:43 -0700679 ret = exp_pseudoroot(rqstp, &tmp_fh);
680 if (ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681 return ret;
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500682 if (tmp_fh.fh_dentry == fh->fh_dentry) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683 fh_put(&tmp_fh);
684 return nfserr_noent;
685 }
686 fh_put(&tmp_fh);
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500687 return nfsd_lookup(rqstp, fh, "..", 2, fh);
688}
689
690static __be32
691nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
692 void *arg)
693{
694 return nfsd4_do_lookupp(rqstp, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695}
696
J.Bruce Fields71911552006-12-13 00:35:29 -0800697static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800698nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
699 struct nfsd4_lookup *lookup)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800701 return nfsd_lookup(rqstp, &cstate->current_fh,
702 lookup->lo_name, lookup->lo_len,
703 &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704}
705
J.Bruce Fields71911552006-12-13 00:35:29 -0800706static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800707nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
708 struct nfsd4_read *read)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709{
Al Virob37ad282006-10-19 23:28:59 -0700710 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711
712 /* no need to check permission - this will be done in nfsd_read() */
713
NeilBrown7e06b7f2005-06-23 22:03:13 -0700714 read->rd_filp = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715 if (read->rd_offset >= OFFSET_MAX)
716 return nfserr_inval;
717
J. Bruce Fields9b3234b2012-12-04 18:03:46 -0500718 /*
719 * If we do a zero copy read, then a client will see read data
720 * that reflects the state of the file *after* performing the
721 * following compound.
722 *
723 * To ensure proper ordering, we therefore turn off zero copy if
724 * the client wants us to do more in this compound:
725 */
726 if (!nfsd4_last_compound_op(rqstp))
727 rqstp->rq_splice_ok = false;
728
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 nfs4_lock_state();
730 /* check stateid */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400731 if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
732 cstate, &read->rd_stateid,
Benny Halevydd453df2009-04-03 08:28:41 +0300733 RD_STATE, &read->rd_filp))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700734 dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
735 goto out;
736 }
NeilBrown7e06b7f2005-06-23 22:03:13 -0700737 if (read->rd_filp)
738 get_file(read->rd_filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739 status = nfs_ok;
740out:
741 nfs4_unlock_state();
742 read->rd_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800743 read->rd_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744 return status;
745}
746
J.Bruce Fields71911552006-12-13 00:35:29 -0800747static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800748nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
749 struct nfsd4_readdir *readdir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750{
751 u64 cookie = readdir->rd_cookie;
752 static const nfs4_verifier zeroverf;
753
754 /* no need to check permission - this will be done in nfsd_readdir() */
755
756 if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
757 return nfserr_inval;
758
Andy Adamson7e705702009-04-03 08:29:11 +0300759 readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
760 readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
761 readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762
Bernd Schubert832023b2011-08-08 17:38:08 +0200763 if ((cookie == 1) || (cookie == 2) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764 (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE)))
765 return nfserr_bad_cookie;
766
767 readdir->rd_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800768 readdir->rd_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769 return nfs_ok;
770}
771
J.Bruce Fields71911552006-12-13 00:35:29 -0800772static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800773nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
774 struct nfsd4_readlink *readlink)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775{
776 readlink->rl_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800777 readlink->rl_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778 return nfs_ok;
779}
780
J.Bruce Fields71911552006-12-13 00:35:29 -0800781static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800782nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
783 struct nfsd4_remove *remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784{
Al Virob37ad282006-10-19 23:28:59 -0700785 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400787 if (locks_in_grace(SVC_NET(rqstp)))
NeilBrownc815afc2005-06-23 22:03:00 -0700788 return nfserr_grace;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800789 status = nfsd_unlink(rqstp, &cstate->current_fh, 0,
790 remove->rm_name, remove->rm_namelen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791 if (!status) {
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800792 fh_unlock(&cstate->current_fh);
793 set_change_info(&remove->rm_cinfo, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794 }
795 return status;
796}
797
J.Bruce Fields71911552006-12-13 00:35:29 -0800798static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800799nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
800 struct nfsd4_rename *rename)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801{
Al Virob37ad282006-10-19 23:28:59 -0700802 __be32 status = nfserr_nofilehandle;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800804 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805 return status;
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400806 if (locks_in_grace(SVC_NET(rqstp)) &&
807 !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK))
NeilBrownc815afc2005-06-23 22:03:00 -0700808 return nfserr_grace;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800809 status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname,
810 rename->rn_snamelen, &cstate->current_fh,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811 rename->rn_tname, rename->rn_tnamelen);
812
813 /* the underlying filesystem returns different error's than required
814 * by NFSv4. both save_fh and current_fh have been verified.. */
815 if (status == nfserr_isdir)
816 status = nfserr_exist;
817 else if ((status == nfserr_notdir) &&
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800818 (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) &&
819 S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820 status = nfserr_exist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821
822 if (!status) {
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800823 set_change_info(&rename->rn_sinfo, &cstate->current_fh);
824 set_change_info(&rename->rn_tinfo, &cstate->save_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825 }
826 return status;
827}
828
J.Bruce Fields71911552006-12-13 00:35:29 -0800829static __be32
Andy Adamsondcb488a32007-07-17 04:04:51 -0700830nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
831 struct nfsd4_secinfo *secinfo)
832{
833 struct svc_fh resfh;
834 struct svc_export *exp;
835 struct dentry *dentry;
836 __be32 err;
837
838 fh_init(&resfh, NFS4_FHSIZE);
J. Bruce Fields29a78a32011-04-09 11:28:53 -0400839 err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC);
840 if (err)
841 return err;
Andy Adamsondcb488a32007-07-17 04:04:51 -0700842 err = nfsd_lookup_dentry(rqstp, &cstate->current_fh,
843 secinfo->si_name, secinfo->si_namelen,
844 &exp, &dentry);
845 if (err)
846 return err;
847 if (dentry->d_inode == NULL) {
848 exp_put(exp);
849 err = nfserr_noent;
850 } else
851 secinfo->si_exp = exp;
852 dput(dentry);
J. Bruce Fields56560b92010-12-16 09:57:15 -0500853 if (cstate->minorversion)
854 /* See rfc 5661 section 2.6.3.1.1.8 */
855 fh_put(&cstate->current_fh);
Andy Adamsondcb488a32007-07-17 04:04:51 -0700856 return err;
857}
858
859static __be32
J. Bruce Fields04f4ad12010-12-16 09:51:13 -0500860nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
861 struct nfsd4_secinfo_no_name *sin)
862{
863 __be32 err;
864
865 switch (sin->sin_style) {
866 case NFS4_SECINFO_STYLE4_CURRENT_FH:
867 break;
868 case NFS4_SECINFO_STYLE4_PARENT:
869 err = nfsd4_do_lookupp(rqstp, &cstate->current_fh);
870 if (err)
871 return err;
872 break;
873 default:
874 return nfserr_inval;
875 }
876 exp_get(cstate->current_fh.fh_export);
877 sin->sin_exp = cstate->current_fh.fh_export;
878 fh_put(&cstate->current_fh);
879 return nfs_ok;
880}
881
882static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800883nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
884 struct nfsd4_setattr *setattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885{
Al Virob37ad282006-10-19 23:28:59 -0700886 __be32 status = nfs_ok;
Al Viro96f6f982012-04-12 23:47:00 -0400887 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889 if (setattr->sa_iattr.ia_valid & ATTR_SIZE) {
890 nfs4_lock_state();
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400891 status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate,
J. Bruce Fields6150ef02009-02-21 13:36:16 -0800892 &setattr->sa_stateid, WR_STATE, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893 nfs4_unlock_state();
J. Bruce Fields375c5542006-01-18 17:43:33 -0800894 if (status) {
Greg Banks3e3b4802006-10-02 02:17:41 -0700895 dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n");
J. Bruce Fields375c5542006-01-18 17:43:33 -0800896 return status;
897 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898 }
Al Viro96f6f982012-04-12 23:47:00 -0400899 err = fh_want_write(&cstate->current_fh);
900 if (err)
901 return nfserrno(err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902 status = nfs_ok;
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800903
904 status = check_attr_support(rqstp, cstate, setattr->sa_bmval,
905 nfsd_attrmask);
906 if (status)
907 goto out;
908
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909 if (setattr->sa_acl != NULL)
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800910 status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh,
911 setattr->sa_acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912 if (status)
Dave Hansen18f335a2008-02-15 14:37:38 -0800913 goto out;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800914 status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915 0, (time_t)0);
Dave Hansen18f335a2008-02-15 14:37:38 -0800916out:
Al Virobad0dcf2011-11-23 12:03:18 -0500917 fh_drop_write(&cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 return status;
919}
920
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500921static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write)
922{
923 int i = 1;
924 int buflen = write->wr_buflen;
925
926 vec[0].iov_base = write->wr_head.iov_base;
927 vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len);
928 buflen -= vec[0].iov_len;
929
930 while (buflen) {
931 vec[i].iov_base = page_address(write->wr_pagelist[i - 1]);
932 vec[i].iov_len = min_t(int, PAGE_SIZE, buflen);
933 buflen -= vec[i].iov_len;
934 i++;
935 }
936 return i;
937}
938
J.Bruce Fields71911552006-12-13 00:35:29 -0800939static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800940nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
941 struct nfsd4_write *write)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942{
943 stateid_t *stateid = &write->wr_stateid;
944 struct file *filp = NULL;
Al Virob37ad282006-10-19 23:28:59 -0700945 __be32 status = nfs_ok;
David Shaw31dec252009-03-05 20:16:14 -0500946 unsigned long cnt;
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500947 int nvecs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
949 /* no need to check permission - this will be done in nfsd_write() */
950
951 if (write->wr_offset >= OFFSET_MAX)
952 return nfserr_inval;
953
954 nfs4_lock_state();
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400955 status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
956 cstate, stateid, WR_STATE, &filp);
J. Bruce Fields375c5542006-01-18 17:43:33 -0800957 if (status) {
fanchaotingb0220322013-04-01 21:07:22 +0800958 nfs4_unlock_state();
J. Bruce Fields375c5542006-01-18 17:43:33 -0800959 dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
960 return status;
961 }
fanchaotingb0220322013-04-01 21:07:22 +0800962 if (filp)
963 get_file(filp);
964 nfs4_unlock_state();
J. Bruce Fields375c5542006-01-18 17:43:33 -0800965
David Shaw31dec252009-03-05 20:16:14 -0500966 cnt = write->wr_buflen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967 write->wr_how_written = write->wr_stable_how;
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300968 gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500970 nvecs = fill_in_write_vector(rqstp->rq_vec, write);
971 WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec));
972
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800973 status = nfsd_write(rqstp, &cstate->current_fh, filp,
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500974 write->wr_offset, rqstp->rq_vec, nvecs,
David Shaw31dec252009-03-05 20:16:14 -0500975 &cnt, &write->wr_how_written);
NeilBrown7e06b7f2005-06-23 22:03:13 -0700976 if (filp)
977 fput(filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978
David Shaw31dec252009-03-05 20:16:14 -0500979 write->wr_bytes_written = cnt;
980
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982}
983
984/* This routine never returns NFS_OK! If there are no other errors, it
985 * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the
986 * attributes matched. VERIFY is implemented by mapping NFSERR_SAME
987 * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK.
988 */
Al Virob37ad282006-10-19 23:28:59 -0700989static __be32
J.Bruce Fieldsc954e2a2006-12-13 00:35:31 -0800990_nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800991 struct nfsd4_verify *verify)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992{
Al Viro2ebbc012006-10-19 23:28:58 -0700993 __be32 *buf, *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 int count;
Al Virob37ad282006-10-19 23:28:59 -0700995 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200997 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998 if (status)
999 return status;
1000
Yu Zhiguo3c8e0312009-05-16 16:22:31 +08001001 status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL);
1002 if (status)
1003 return status;
1004
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005 if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR)
1006 || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1))
1007 return nfserr_inval;
1008 if (verify->ve_attrlen & 3)
1009 return nfserr_inval;
1010
1011 /* count in words:
1012 * bitmap_len(1) + bitmap(2) + attr_len(1) = 4
1013 */
1014 count = 4 + (verify->ve_attrlen >> 2);
1015 buf = kmalloc(count << 2, GFP_KERNEL);
1016 if (!buf)
J. Bruce Fields3e772462011-08-10 19:07:33 -04001017 return nfserr_jukebox;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018
J. Bruce Fields84822d02012-12-14 17:57:50 -05001019 p = buf;
J.Bruce Fieldsca364312006-12-13 00:35:27 -08001020 status = nfsd4_encode_fattr(&cstate->current_fh,
1021 cstate->current_fh.fh_export,
J. Bruce Fields84822d02012-12-14 17:57:50 -05001022 cstate->current_fh.fh_dentry, &p,
1023 count, verify->ve_bmval,
Frank Filz406a7ea2007-11-27 11:34:05 -08001024 rqstp, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025
1026 /* this means that nfsd4_encode_fattr() ran out of space */
J. Bruce Fields84822d02012-12-14 17:57:50 -05001027 if (status == nfserr_resource)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028 status = nfserr_not_same;
1029 if (status)
1030 goto out_kfree;
1031
Benny Halevy95ec28c2009-04-03 08:29:08 +03001032 /* skip bitmap */
1033 p = buf + 1 + ntohl(buf[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034 status = nfserr_not_same;
1035 if (ntohl(*p++) != verify->ve_attrlen)
1036 goto out_kfree;
1037 if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen))
1038 status = nfserr_same;
1039
1040out_kfree:
1041 kfree(buf);
1042 return status;
1043}
1044
J.Bruce Fieldsc954e2a2006-12-13 00:35:31 -08001045static __be32
1046nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
1047 struct nfsd4_verify *verify)
1048{
1049 __be32 status;
1050
1051 status = _nfsd4_verify(rqstp, cstate, verify);
1052 return status == nfserr_not_same ? nfs_ok : status;
1053}
1054
1055static __be32
1056nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
1057 struct nfsd4_verify *verify)
1058{
1059 __be32 status;
1060
1061 status = _nfsd4_verify(rqstp, cstate, verify);
1062 return status == nfserr_same ? nfs_ok : status;
1063}
1064
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065/*
1066 * NULL call.
1067 */
Al Viro7111c662006-10-19 23:28:45 -07001068static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
1070{
1071 return nfs_ok;
1072}
1073
Shankar Anande2b20952006-07-10 04:45:44 -07001074static inline void nfsd4_increment_op_stats(u32 opnum)
1075{
1076 if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP)
1077 nfsdstats.nfs4_opcount[opnum]++;
1078}
1079
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001080typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
1081 void *);
Mi Jinlong58e7b332011-08-28 18:18:56 +08001082typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op);
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001083typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *);
1084typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *);
Mi Jinlong58e7b332011-08-28 18:18:56 +08001085
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001086enum nfsd4_op_flags {
1087 ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */
Mi Jinlong5ece3ca2011-02-18 09:08:31 +08001088 ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */
1089 ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */
J. Bruce Fields68d93182011-04-08 17:00:50 -04001090 /* For rfc 5661 section 2.6.3.1.1: */
1091 OP_HANDLES_WRONGSEC = 1 << 3,
1092 OP_IS_PUTFH_LIKE = 1 << 4,
J. Bruce Fields10910062011-01-24 12:11:02 -05001093 /*
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001094 * These are the ops whose result size we estimate before
1095 * encoding, to avoid performing an op then not being able to
1096 * respond or cache a response. This includes writes and setattrs
1097 * as well as the operations usually called "nonidempotent":
1098 */
1099 OP_MODIFIES_SOMETHING = 1 << 5,
1100 /*
1101 * Cache compounds containing these ops in the xid-based drc:
J. Bruce Fields10910062011-01-24 12:11:02 -05001102 * We use the DRC for compounds containing non-idempotent
1103 * operations, *except* those that are 4.1-specific (since
1104 * sessions provide their own EOS), and except for stateful
1105 * operations other than setclientid and setclientid_confirm
1106 * (since sequence numbers provide EOS for open, lock, etc in
1107 * the v4.0 case).
1108 */
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001109 OP_CACHEME = 1 << 6,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001110 /*
1111 * These are ops which clear current state id.
1112 */
1113 OP_CLEAR_STATEID = 1 << 7,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001114};
1115
1116struct nfsd4_operation {
1117 nfsd4op_func op_func;
1118 u32 op_flags;
1119 char *op_name;
Mi Jinlong58e7b332011-08-28 18:18:56 +08001120 /* Try to get response size before operation */
1121 nfsd4op_rsize op_rsize_bop;
Bryan Schumaker24ff99c2012-08-14 15:55:08 -04001122 stateid_getter op_get_currentstateid;
1123 stateid_setter op_set_currentstateid;
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001124};
1125
1126static struct nfsd4_operation nfsd4_ops[];
1127
Trond Myklebust8f199b82012-03-20 15:11:17 -04001128#ifdef NFSD_DEBUG
Adrian Bunkf1c7f792008-08-08 19:26:42 +03001129static const char *nfsd4_op_name(unsigned opnum);
Trond Myklebust8f199b82012-03-20 15:11:17 -04001130#endif
Benny Halevyb001a1b2008-07-02 11:15:03 +03001131
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132/*
J. Bruce Fields57716352010-04-21 12:27:19 -04001133 * Enforce NFSv4.1 COMPOUND ordering rules:
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001134 *
J. Bruce Fields57716352010-04-21 12:27:19 -04001135 * Also note, enforced elsewhere:
1136 * - SEQUENCE other than as first op results in
1137 * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().)
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001138 * - BIND_CONN_TO_SESSION must be the only op in its compound.
1139 * (Enforced in nfsd4_bind_conn_to_session().)
J. Bruce Fields57716352010-04-21 12:27:19 -04001140 * - DESTROY_SESSION must be the final operation in a compound, if
1141 * sessionid's in SEQUENCE and DESTROY_SESSION are the same.
1142 * (Enforced in nfsd4_destroy_session().)
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001143 */
J. Bruce Fields57716352010-04-21 12:27:19 -04001144static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args)
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001145{
J. Bruce Fields57716352010-04-21 12:27:19 -04001146 struct nfsd4_op *op = &args->ops[0];
1147
1148 /* These ordering requirements don't apply to NFSv4.0: */
1149 if (args->minorversion == 0)
1150 return nfs_ok;
1151 /* This is weird, but OK, not our problem: */
1152 if (args->opcnt == 0)
1153 return nfs_ok;
1154 if (op->status == nfserr_op_illegal)
1155 return nfs_ok;
1156 if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP))
1157 return nfserr_op_not_in_session;
1158 if (op->opnum == OP_SEQUENCE)
1159 return nfs_ok;
1160 if (args->opcnt != 1)
1161 return nfserr_not_only_op;
1162 return nfs_ok;
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001163}
1164
J. Bruce Fields22b03212011-04-09 11:23:24 -04001165static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op)
1166{
1167 return &nfsd4_ops[op->opnum];
1168}
1169
J. Bruce Fields10910062011-01-24 12:11:02 -05001170bool nfsd4_cache_this_op(struct nfsd4_op *op)
1171{
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001172 return OPDESC(op)->op_flags & OP_CACHEME;
J. Bruce Fields10910062011-01-24 12:11:02 -05001173}
1174
J. Bruce Fields68d93182011-04-08 17:00:50 -04001175static bool need_wrongsec_check(struct svc_rqst *rqstp)
1176{
1177 struct nfsd4_compoundres *resp = rqstp->rq_resp;
1178 struct nfsd4_compoundargs *argp = rqstp->rq_argp;
1179 struct nfsd4_op *this = &argp->ops[resp->opcnt - 1];
1180 struct nfsd4_op *next = &argp->ops[resp->opcnt];
1181 struct nfsd4_operation *thisd;
1182 struct nfsd4_operation *nextd;
1183
1184 thisd = OPDESC(this);
1185 /*
1186 * Most ops check wronsec on our own; only the putfh-like ops
1187 * have special rules.
1188 */
1189 if (!(thisd->op_flags & OP_IS_PUTFH_LIKE))
1190 return false;
1191 /*
1192 * rfc 5661 2.6.3.1.1.6: don't bother erroring out a
1193 * put-filehandle operation if we're not going to use the
1194 * result:
1195 */
1196 if (argp->opcnt == resp->opcnt)
1197 return false;
1198
1199 nextd = OPDESC(next);
1200 /*
1201 * Rest of 2.6.3.1.1: certain operations will return WRONGSEC
1202 * errors themselves as necessary; others should check for them
1203 * now:
1204 */
1205 return !(nextd->op_flags & OP_HANDLES_WRONGSEC);
1206}
1207
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001208/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209 * COMPOUND call.
1210 */
Al Viro7111c662006-10-19 23:28:45 -07001211static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212nfsd4_proc_compound(struct svc_rqst *rqstp,
1213 struct nfsd4_compoundargs *args,
1214 struct nfsd4_compoundres *resp)
1215{
1216 struct nfsd4_op *op;
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001217 struct nfsd4_operation *opdesc;
Andy Adamsone354d572009-03-28 11:30:52 +03001218 struct nfsd4_compound_state *cstate = &resp->cstate;
J.Bruce Fieldse5710192006-12-13 00:35:20 -08001219 int slack_bytes;
Mi Jinlong58e7b332011-08-28 18:18:56 +08001220 u32 plen = 0;
Al Virob37ad282006-10-19 23:28:59 -07001221 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001222
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223 resp->xbuf = &rqstp->rq_res;
Andy Adamsone354d572009-03-28 11:30:52 +03001224 resp->p = rqstp->rq_res.head[0].iov_base +
1225 rqstp->rq_res.head[0].iov_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226 resp->tagp = resp->p;
1227 /* reserve space for: taglen, tag, and opcnt */
1228 resp->p += 2 + XDR_QUADLEN(args->taglen);
1229 resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE;
1230 resp->taglen = args->taglen;
1231 resp->tag = args->tag;
1232 resp->opcnt = 0;
1233 resp->rqstp = rqstp;
Andy Adamsond87a8ad2009-04-03 08:28:53 +03001234 resp->cstate.minorversion = args->minorversion;
Andy Adamsone354d572009-03-28 11:30:52 +03001235 resp->cstate.replay_owner = NULL;
J. Bruce Fields26c0c752010-04-24 15:35:43 -04001236 resp->cstate.session = NULL;
Andy Adamsone354d572009-03-28 11:30:52 +03001237 fh_init(&resp->cstate.current_fh, NFS4_FHSIZE);
1238 fh_init(&resp->cstate.save_fh, NFS4_FHSIZE);
NeilBrown8ff30fa2010-08-12 17:04:07 +10001239 /*
1240 * Don't use the deferral mechanism for NFSv4; compounds make it
1241 * too hard to avoid non-idempotency problems.
1242 */
1243 rqstp->rq_usedeferral = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244
1245 /*
1246 * According to RFC3010, this takes precedence over all other errors.
1247 */
1248 status = nfserr_minor_vers_mismatch;
Benny Halevy8daf2202009-04-03 08:28:59 +03001249 if (args->minorversion > nfsd_supported_minorversion)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250 goto out;
1251
J. Bruce Fields57716352010-04-21 12:27:19 -04001252 status = nfs41_check_op_ordering(args);
1253 if (status) {
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001254 op = &args->ops[0];
J. Bruce Fields57716352010-04-21 12:27:19 -04001255 op->status = status;
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001256 goto encode_op;
1257 }
1258
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 while (!status && resp->opcnt < args->opcnt) {
1260 op = &args->ops[resp->opcnt++];
1261
Benny Halevyb001a1b2008-07-02 11:15:03 +03001262 dprintk("nfsv4 compound op #%d/%d: %d (%s)\n",
1263 resp->opcnt, args->opcnt, op->opnum,
1264 nfsd4_op_name(op->opnum));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265 /*
1266 * The XDR decode routines may have pre-set op->status;
1267 * for example, if there is a miscellaneous XDR error
1268 * it will be set to nfserr_bad_xdr.
1269 */
J. Bruce Fields9d313b12013-02-28 12:51:49 -08001270 if (op->status) {
1271 if (op->opnum == OP_OPEN)
1272 op->status = nfsd4_open_omfg(rqstp, cstate, op);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 goto encode_op;
J. Bruce Fields9d313b12013-02-28 12:51:49 -08001274 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275
1276 /* We must be able to encode a successful response to
1277 * this operation, with enough room left over to encode a
1278 * failed response to the next operation. If we don't
1279 * have enough room, fail with ERR_RESOURCE.
1280 */
J.Bruce Fieldse5710192006-12-13 00:35:20 -08001281 slack_bytes = (char *)resp->end - (char *)resp->p;
1282 if (slack_bytes < COMPOUND_SLACK_SPACE
1283 + COMPOUND_ERR_SLACK_SPACE) {
1284 BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285 op->status = nfserr_resource;
1286 goto encode_op;
1287 }
1288
J. Bruce Fields22b03212011-04-09 11:23:24 -04001289 opdesc = OPDESC(op);
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001290
J.Bruce Fieldsca364312006-12-13 00:35:27 -08001291 if (!cstate->current_fh.fh_dentry) {
J.Bruce Fields27d630e2006-12-13 00:35:43 -08001292 if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) {
J.Bruce Fields42ca0992006-10-04 02:16:20 -07001293 op->status = nfserr_nofilehandle;
1294 goto encode_op;
1295 }
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001296 } else if (cstate->current_fh.fh_export->ex_fslocs.migrated &&
1297 !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) {
J.Bruce Fields42ca0992006-10-04 02:16:20 -07001298 op->status = nfserr_moved;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299 goto encode_op;
1300 }
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001301
Mi Jinlong58e7b332011-08-28 18:18:56 +08001302 /* If op is non-idempotent */
1303 if (opdesc->op_flags & OP_MODIFIES_SOMETHING) {
1304 plen = opdesc->op_rsize_bop(rqstp, op);
1305 op->status = nfsd4_check_resp_size(resp, plen);
1306 }
1307
1308 if (op->status)
1309 goto encode_op;
1310
J. Bruce Fieldsb600de72013-02-28 11:55:46 -08001311 if (opdesc->op_get_currentstateid)
1312 opdesc->op_get_currentstateid(cstate, &op->u);
1313 op->status = opdesc->op_func(rqstp, cstate, &op->u);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001315 if (!op->status) {
1316 if (opdesc->op_set_currentstateid)
1317 opdesc->op_set_currentstateid(cstate, &op->u);
1318
1319 if (opdesc->op_flags & OP_CLEAR_STATEID)
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +01001320 clear_current_stateid(cstate);
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001321
1322 if (need_wrongsec_check(rqstp))
1323 op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp);
1324 }
J. Bruce Fields68d93182011-04-08 17:00:50 -04001325
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326encode_op:
Andy Adamson49557cc2009-07-23 19:02:16 -04001327 /* Only from SEQUENCE */
Andy Adamsonda3846a2009-04-03 08:28:22 +03001328 if (resp->cstate.status == nfserr_replay_cache) {
1329 dprintk("%s NFS4.1 replay from cache\n", __func__);
Andy Adamsonabfabf82009-07-23 19:02:18 -04001330 status = op->status;
Andy Adamsonda3846a2009-04-03 08:28:22 +03001331 goto out;
1332 }
Al Viroa90b0612006-10-19 23:29:03 -07001333 if (op->status == nfserr_replay_me) {
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001334 op->replay = &cstate->replay_owner->so_replay;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335 nfsd4_encode_replay(resp, op);
1336 status = op->status = op->replay->rp_status;
1337 } else {
1338 nfsd4_encode_operation(resp, op);
1339 status = op->status;
1340 }
Benny Halevy04077172008-12-15 19:40:49 +02001341
1342 dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n",
1343 args->ops, args->opcnt, resp->opcnt, op->opnum,
1344 be32_to_cpu(status));
1345
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001346 if (cstate->replay_owner) {
J. Bruce Fields5ec094c2011-08-30 17:02:48 -04001347 nfs4_unlock_state();
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001348 cstate->replay_owner = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349 }
NeilBrown7e06b7f2005-06-23 22:03:13 -07001350 /* XXX Ugh, we need to get rid of this kind of special case: */
1351 if (op->opnum == OP_READ && op->u.read.rd_filp)
1352 fput(op->u.read.rd_filp);
Shankar Anande2b20952006-07-10 04:45:44 -07001353
1354 nfsd4_increment_op_stats(op->opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355 }
1356
Andy Adamsonda3846a2009-04-03 08:28:22 +03001357 resp->cstate.status = status;
Andy Adamsone354d572009-03-28 11:30:52 +03001358 fh_put(&resp->cstate.current_fh);
1359 fh_put(&resp->cstate.save_fh);
1360 BUG_ON(resp->cstate.replay_owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361out:
Andy Adamson2f425872009-04-03 08:27:32 +03001362 /* Reset deferral mechanism for RPC deferrals */
1363 rqstp->rq_usedeferral = 1;
J. Bruce Fields3b12cd92008-05-05 17:17:44 -04001364 dprintk("nfsv4 compound returned %d\n", ntohl(status));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 return status;
1366}
1367
Mi Jinlong58e7b332011-08-28 18:18:56 +08001368#define op_encode_hdr_size (2)
1369#define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
1370#define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
1371#define op_encode_change_info_maxsz (5)
1372#define nfs4_fattr_bitmap_maxsz (4)
1373
1374#define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
1375#define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz)
1376
1377#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
1378
1379#define op_encode_ace_maxsz (3 + nfs4_owner_maxsz)
1380#define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \
1381 op_encode_ace_maxsz)
1382
1383#define op_encode_channel_attrs_maxsz (6 + 1 + 1)
1384
1385static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1386{
1387 return (op_encode_hdr_size) * sizeof(__be32);
1388}
1389
1390static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1391{
1392 return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32);
1393}
1394
1395static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1396{
1397 return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
1398}
1399
1400static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1401{
1402 return (op_encode_hdr_size + op_encode_change_info_maxsz
1403 + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
1404}
1405
1406static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1407{
1408 return (op_encode_hdr_size + op_encode_change_info_maxsz)
1409 * sizeof(__be32);
1410}
1411
1412static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1413{
1414 return (op_encode_hdr_size + op_encode_lock_denied_maxsz)
1415 * sizeof(__be32);
1416}
1417
1418static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1419{
1420 return (op_encode_hdr_size + op_encode_stateid_maxsz
1421 + op_encode_change_info_maxsz + 1
1422 + nfs4_fattr_bitmap_maxsz
1423 + op_encode_delegation_maxsz) * sizeof(__be32);
1424}
1425
1426static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1427{
1428 u32 maxcount = 0, rlen = 0;
1429
1430 maxcount = svc_max_payload(rqstp);
1431 rlen = op->u.read.rd_length;
1432
1433 if (rlen > maxcount)
1434 rlen = maxcount;
1435
1436 return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen;
1437}
1438
1439static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1440{
1441 u32 rlen = op->u.readdir.rd_maxcount;
1442
1443 if (rlen > PAGE_SIZE)
1444 rlen = PAGE_SIZE;
1445
1446 return (op_encode_hdr_size + op_encode_verifier_maxsz)
1447 * sizeof(__be32) + rlen;
1448}
1449
1450static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1451{
1452 return (op_encode_hdr_size + op_encode_change_info_maxsz)
1453 * sizeof(__be32);
1454}
1455
1456static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1457{
1458 return (op_encode_hdr_size + op_encode_change_info_maxsz
1459 + op_encode_change_info_maxsz) * sizeof(__be32);
1460}
1461
1462static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1463{
1464 return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
1465}
1466
1467static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1468{
1469 return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32);
1470}
1471
1472static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1473{
1474 return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
1475}
1476
1477static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1478{
1479 return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\
1480 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\
1481 2 + /*eir_server_owner.so_minor_id */\
1482 /* eir_server_owner.so_major_id<> */\
1483 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
1484 /* eir_server_scope<> */\
1485 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
1486 1 + /* eir_server_impl_id array length */\
1487 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32);
1488}
1489
1490static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1491{
1492 return (op_encode_hdr_size + \
1493 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\
1494 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32);
1495}
1496
1497static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1498{
1499 return (op_encode_hdr_size + \
1500 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\
1501 2 + /* csr_sequence, csr_flags */\
1502 op_encode_channel_attrs_maxsz + \
1503 op_encode_channel_attrs_maxsz) * sizeof(__be32);
1504}
1505
Benny Halevy20766012009-03-28 11:32:05 +03001506static struct nfsd4_operation nfsd4_ops[] = {
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001507 [OP_ACCESS] = {
1508 .op_func = (nfsd4op_func)nfsd4_access,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001509 .op_name = "OP_ACCESS",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001510 },
1511 [OP_CLOSE] = {
1512 .op_func = (nfsd4op_func)nfsd4_close,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001513 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001514 .op_name = "OP_CLOSE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001515 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001516 .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid,
1517 .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001518 },
1519 [OP_COMMIT] = {
1520 .op_func = (nfsd4op_func)nfsd4_commit,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001521 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001522 .op_name = "OP_COMMIT",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001523 .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001524 },
1525 [OP_CREATE] = {
1526 .op_func = (nfsd4op_func)nfsd4_create,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001527 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001528 .op_name = "OP_CREATE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001529 .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001530 },
1531 [OP_DELEGRETURN] = {
1532 .op_func = (nfsd4op_func)nfsd4_delegreturn,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001533 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001534 .op_name = "OP_DELEGRETURN",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001535 .op_rsize_bop = nfsd4_only_status_rsize,
Tigran Mkrtchyan9428fe12012-02-13 22:55:31 +01001536 .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001537 },
1538 [OP_GETATTR] = {
1539 .op_func = (nfsd4op_func)nfsd4_getattr,
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001540 .op_flags = ALLOWED_ON_ABSENT_FS,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001541 .op_name = "OP_GETATTR",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001542 },
1543 [OP_GETFH] = {
1544 .op_func = (nfsd4op_func)nfsd4_getfh,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001545 .op_name = "OP_GETFH",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001546 },
1547 [OP_LINK] = {
1548 .op_func = (nfsd4op_func)nfsd4_link,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001549 .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING
1550 | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001551 .op_name = "OP_LINK",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001552 .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001553 },
1554 [OP_LOCK] = {
1555 .op_func = (nfsd4op_func)nfsd4_lock,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001556 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001557 .op_name = "OP_LOCK",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001558 .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
Tigran Mkrtchyan62cd4a52012-02-13 22:55:25 +01001559 .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001560 },
1561 [OP_LOCKT] = {
1562 .op_func = (nfsd4op_func)nfsd4_lockt,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001563 .op_name = "OP_LOCKT",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001564 },
1565 [OP_LOCKU] = {
1566 .op_func = (nfsd4op_func)nfsd4_locku,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001567 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001568 .op_name = "OP_LOCKU",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001569 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan62cd4a52012-02-13 22:55:25 +01001570 .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001571 },
1572 [OP_LOOKUP] = {
1573 .op_func = (nfsd4op_func)nfsd4_lookup,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001574 .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001575 .op_name = "OP_LOOKUP",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001576 },
1577 [OP_LOOKUPP] = {
1578 .op_func = (nfsd4op_func)nfsd4_lookupp,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001579 .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001580 .op_name = "OP_LOOKUPP",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001581 },
1582 [OP_NVERIFY] = {
1583 .op_func = (nfsd4op_func)nfsd4_nverify,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001584 .op_name = "OP_NVERIFY",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001585 },
1586 [OP_OPEN] = {
1587 .op_func = (nfsd4op_func)nfsd4_open,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001588 .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001589 .op_name = "OP_OPEN",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001590 .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001591 .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001592 },
1593 [OP_OPEN_CONFIRM] = {
1594 .op_func = (nfsd4op_func)nfsd4_open_confirm,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001595 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001596 .op_name = "OP_OPEN_CONFIRM",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001597 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001598 },
1599 [OP_OPEN_DOWNGRADE] = {
1600 .op_func = (nfsd4op_func)nfsd4_open_downgrade,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001601 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001602 .op_name = "OP_OPEN_DOWNGRADE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001603 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan9428fe12012-02-13 22:55:31 +01001604 .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid,
1605 .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001606 },
1607 [OP_PUTFH] = {
1608 .op_func = (nfsd4op_func)nfsd4_putfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001609 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001610 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1611 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001612 .op_name = "OP_PUTFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001613 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001614 },
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001615 [OP_PUTPUBFH] = {
J. Bruce Fieldsa1c8c4d2009-03-09 12:17:29 -04001616 .op_func = (nfsd4op_func)nfsd4_putrootfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001617 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001618 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1619 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001620 .op_name = "OP_PUTPUBFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001621 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001622 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001623 [OP_PUTROOTFH] = {
1624 .op_func = (nfsd4op_func)nfsd4_putrootfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001625 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001626 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1627 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001628 .op_name = "OP_PUTROOTFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001629 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001630 },
1631 [OP_READ] = {
1632 .op_func = (nfsd4op_func)nfsd4_read,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001633 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001634 .op_name = "OP_READ",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001635 .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize,
Tigran Mkrtchyan30813e22012-02-13 22:55:26 +01001636 .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001637 },
1638 [OP_READDIR] = {
1639 .op_func = (nfsd4op_func)nfsd4_readdir,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001640 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001641 .op_name = "OP_READDIR",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001642 .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001643 },
1644 [OP_READLINK] = {
1645 .op_func = (nfsd4op_func)nfsd4_readlink,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001646 .op_name = "OP_READLINK",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001647 },
1648 [OP_REMOVE] = {
1649 .op_func = (nfsd4op_func)nfsd4_remove,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001650 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001651 .op_name = "OP_REMOVE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001652 .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001653 },
1654 [OP_RENAME] = {
1655 .op_func = (nfsd4op_func)nfsd4_rename,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001656 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001657 .op_name = "OP_RENAME",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001658 .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001659 },
1660 [OP_RENEW] = {
1661 .op_func = (nfsd4op_func)nfsd4_renew,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001662 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
1663 | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001664 .op_name = "OP_RENEW",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001665 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
1666
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001667 },
1668 [OP_RESTOREFH] = {
1669 .op_func = (nfsd4op_func)nfsd4_restorefh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001670 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Mi Jinlong58e7b332011-08-28 18:18:56 +08001671 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001672 .op_name = "OP_RESTOREFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001673 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001674 },
1675 [OP_SAVEFH] = {
1676 .op_func = (nfsd4op_func)nfsd4_savefh,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001677 .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001678 .op_name = "OP_SAVEFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001679 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001680 },
Andy Adamsondcb488a32007-07-17 04:04:51 -07001681 [OP_SECINFO] = {
1682 .op_func = (nfsd4op_func)nfsd4_secinfo,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001683 .op_flags = OP_HANDLES_WRONGSEC,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001684 .op_name = "OP_SECINFO",
Andy Adamsondcb488a32007-07-17 04:04:51 -07001685 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001686 [OP_SETATTR] = {
1687 .op_func = (nfsd4op_func)nfsd4_setattr,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001688 .op_name = "OP_SETATTR",
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001689 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001690 .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize,
Tigran Mkrtchyan1e97b512012-02-13 22:55:30 +01001691 .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001692 },
1693 [OP_SETCLIENTID] = {
1694 .op_func = (nfsd4op_func)nfsd4_setclientid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001695 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001696 | OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001697 .op_name = "OP_SETCLIENTID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001698 .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001699 },
1700 [OP_SETCLIENTID_CONFIRM] = {
1701 .op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001702 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001703 | OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001704 .op_name = "OP_SETCLIENTID_CONFIRM",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001705 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001706 },
1707 [OP_VERIFY] = {
1708 .op_func = (nfsd4op_func)nfsd4_verify,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001709 .op_name = "OP_VERIFY",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001710 },
1711 [OP_WRITE] = {
1712 .op_func = (nfsd4op_func)nfsd4_write,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001713 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001714 .op_name = "OP_WRITE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001715 .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
Tigran Mkrtchyan30813e22012-02-13 22:55:26 +01001716 .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001717 },
1718 [OP_RELEASE_LOCKOWNER] = {
1719 .op_func = (nfsd4op_func)nfsd4_release_lockowner,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001720 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
1721 | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001722 .op_name = "OP_RELEASE_LOCKOWNER",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001723 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001724 },
Andy Adamson069b6ad2009-04-03 08:27:58 +03001725
1726 /* NFSv4.1 operations */
1727 [OP_EXCHANGE_ID] = {
1728 .op_func = (nfsd4op_func)nfsd4_exchange_id,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001729 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1730 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001731 .op_name = "OP_EXCHANGE_ID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001732 .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001733 },
J. Bruce Fieldscb73a9f2012-11-01 18:09:48 -04001734 [OP_BACKCHANNEL_CTL] = {
1735 .op_func = (nfsd4op_func)nfsd4_backchannel_ctl,
1736 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
1737 .op_name = "OP_BACKCHANNEL_CTL",
1738 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
1739 },
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001740 [OP_BIND_CONN_TO_SESSION] = {
1741 .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001742 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1743 | OP_MODIFIES_SOMETHING,
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001744 .op_name = "OP_BIND_CONN_TO_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001745 .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize,
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001746 },
Andy Adamson069b6ad2009-04-03 08:27:58 +03001747 [OP_CREATE_SESSION] = {
1748 .op_func = (nfsd4op_func)nfsd4_create_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001749 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1750 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001751 .op_name = "OP_CREATE_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001752 .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001753 },
1754 [OP_DESTROY_SESSION] = {
1755 .op_func = (nfsd4op_func)nfsd4_destroy_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001756 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1757 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001758 .op_name = "OP_DESTROY_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001759 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001760 },
1761 [OP_SEQUENCE] = {
1762 .op_func = (nfsd4op_func)nfsd4_sequence,
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001763 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001764 .op_name = "OP_SEQUENCE",
1765 },
Benny Halevy094b5d72011-06-16 11:39:10 -04001766 [OP_DESTROY_CLIENTID] = {
Mi Jinlong345c2842011-10-20 17:51:39 +08001767 .op_func = (nfsd4op_func)nfsd4_destroy_clientid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001768 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1769 | OP_MODIFIES_SOMETHING,
Benny Halevy094b5d72011-06-16 11:39:10 -04001770 .op_name = "OP_DESTROY_CLIENTID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001771 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Benny Halevy094b5d72011-06-16 11:39:10 -04001772 },
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001773 [OP_RECLAIM_COMPLETE] = {
1774 .op_func = (nfsd4op_func)nfsd4_reclaim_complete,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001775 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001776 .op_name = "OP_RECLAIM_COMPLETE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001777 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001778 },
J. Bruce Fields04f4ad12010-12-16 09:51:13 -05001779 [OP_SECINFO_NO_NAME] = {
1780 .op_func = (nfsd4op_func)nfsd4_secinfo_no_name,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001781 .op_flags = OP_HANDLES_WRONGSEC,
J. Bruce Fields04f4ad12010-12-16 09:51:13 -05001782 .op_name = "OP_SECINFO_NO_NAME",
1783 },
Bryan Schumaker17456802011-07-13 10:50:48 -04001784 [OP_TEST_STATEID] = {
1785 .op_func = (nfsd4op_func)nfsd4_test_stateid,
1786 .op_flags = ALLOWED_WITHOUT_FH,
1787 .op_name = "OP_TEST_STATEID",
1788 },
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001789 [OP_FREE_STATEID] = {
1790 .op_func = (nfsd4op_func)nfsd4_free_stateid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001791 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001792 .op_name = "OP_FREE_STATEID",
J. Bruce Fieldsa1dc6952012-12-17 18:17:13 -05001793 .op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001794 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001795 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001796};
1797
Trond Myklebust8f199b82012-03-20 15:11:17 -04001798#ifdef NFSD_DEBUG
Adrian Bunkf1c7f792008-08-08 19:26:42 +03001799static const char *nfsd4_op_name(unsigned opnum)
Benny Halevyb001a1b2008-07-02 11:15:03 +03001800{
1801 if (opnum < ARRAY_SIZE(nfsd4_ops))
1802 return nfsd4_ops[opnum].op_name;
1803 return "unknown_operation";
1804}
Trond Myklebust8f199b82012-03-20 15:11:17 -04001805#endif
Benny Halevyb001a1b2008-07-02 11:15:03 +03001806
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807#define nfsd4_voidres nfsd4_voidargs
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808struct nfsd4_voidargs { int dummy; };
1809
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810static struct svc_procedure nfsd_procedures4[2] = {
Yu Zhiguo0a93a472009-05-19 14:09:54 +08001811 [NFSPROC4_NULL] = {
1812 .pc_func = (svc_procfunc) nfsd4_proc_null,
1813 .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres,
1814 .pc_argsize = sizeof(struct nfsd4_voidargs),
1815 .pc_ressize = sizeof(struct nfsd4_voidres),
1816 .pc_cachetype = RC_NOCACHE,
1817 .pc_xdrressize = 1,
1818 },
1819 [NFSPROC4_COMPOUND] = {
1820 .pc_func = (svc_procfunc) nfsd4_proc_compound,
1821 .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs,
1822 .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres,
1823 .pc_argsize = sizeof(struct nfsd4_compoundargs),
1824 .pc_ressize = sizeof(struct nfsd4_compoundres),
J. Bruce Fields3e98abf2011-07-16 17:15:10 -04001825 .pc_release = nfsd4_release_compoundargs,
Yu Zhiguo0a93a472009-05-19 14:09:54 +08001826 .pc_cachetype = RC_NOCACHE,
1827 .pc_xdrressize = NFSD_BUFSIZE/4,
1828 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829};
1830
1831struct svc_version nfsd_version4 = {
1832 .vs_vers = 4,
1833 .vs_nproc = 2,
1834 .vs_proc = nfsd_procedures4,
1835 .vs_dispatch = nfsd_dispatch,
1836 .vs_xdrsize = NFS4_SVC_XDRSIZE,
1837};
1838
1839/*
1840 * Local variables:
1841 * c-basic-offset: 8
1842 * End:
1843 */