blob: 42c498ce9f0e12d8faec855a4e927dcc8b04d6a5 [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 Fields7c13f342011-08-30 22:15:47 -0400418 else
J. Bruce Fields5ec094c2011-08-30 17:02:48 -0400419 nfs4_unlock_state();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420 return status;
421}
422
423/*
J. Bruce Fields9d313b12013-02-28 12:51:49 -0800424 * OPEN is the only seqid-mutating operation whose decoding can fail
425 * with a seqid-mutating error (specifically, decoding of user names in
426 * the attributes). Therefore we have to do some processing to look up
427 * the stateowner so that we can bump the seqid.
428 */
429static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op)
430{
431 struct nfsd4_open *open = (struct nfsd4_open *)&op->u;
432
433 if (!seqid_mutating_err(ntohl(op->status)))
434 return op->status;
435 if (nfsd4_has_session(cstate))
436 return op->status;
437 open->op_xdr_error = op->status;
438 return nfsd4_open(rqstp, cstate, open);
439}
440
441/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 * filehandle-manipulating ops.
443 */
J.Bruce Fields71911552006-12-13 00:35:29 -0800444static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800445nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
446 struct svc_fh **getfh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800448 if (!cstate->current_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 return nfserr_nofilehandle;
450
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800451 *getfh = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 return nfs_ok;
453}
454
J.Bruce Fields71911552006-12-13 00:35:29 -0800455static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800456nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
457 struct nfsd4_putfh *putfh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800459 fh_put(&cstate->current_fh);
460 cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen;
461 memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval,
462 putfh->pf_fhlen);
J. Bruce Fields68d93182011-04-08 17:00:50 -0400463 return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464}
465
J.Bruce Fields71911552006-12-13 00:35:29 -0800466static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800467nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
468 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469{
Al Virob37ad282006-10-19 23:28:59 -0700470 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800472 fh_put(&cstate->current_fh);
J. Bruce Fieldsdf547ef2007-07-17 04:04:43 -0700473 status = exp_pseudoroot(rqstp, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 return status;
475}
476
J.Bruce Fields71911552006-12-13 00:35:29 -0800477static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800478nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
479 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800481 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 return nfserr_restorefh;
483
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800484 fh_dup2(&cstate->current_fh, &cstate->save_fh);
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +0100485 if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) {
486 memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t));
487 SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG);
488 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 return nfs_ok;
490}
491
J.Bruce Fields71911552006-12-13 00:35:29 -0800492static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800493nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
494 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800496 if (!cstate->current_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 return nfserr_nofilehandle;
498
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800499 fh_dup2(&cstate->save_fh, &cstate->current_fh);
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +0100500 if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) {
501 memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t));
502 SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG);
503 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504 return nfs_ok;
505}
506
507/*
508 * misc nfsv4 ops
509 */
J.Bruce Fields71911552006-12-13 00:35:29 -0800510static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800511nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
512 struct nfsd4_access *access)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513{
514 if (access->ac_req_access & ~NFS3_ACCESS_FULL)
515 return nfserr_inval;
516
517 access->ac_resp_access = access->ac_req_access;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800518 return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access,
519 &access->ac_supported);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520}
521
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300522static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net)
Chuck Leverab4684d2012-03-02 17:13:50 -0500523{
524 __be32 verf[2];
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300525 struct nfsd_net *nn = net_generic(net, nfsd_net_id);
Chuck Leverab4684d2012-03-02 17:13:50 -0500526
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300527 verf[0] = (__be32)nn->nfssvc_boot.tv_sec;
528 verf[1] = (__be32)nn->nfssvc_boot.tv_usec;
Chuck Leverab4684d2012-03-02 17:13:50 -0500529 memcpy(verifier->data, verf, sizeof(verifier->data));
530}
531
J.Bruce Fields71911552006-12-13 00:35:29 -0800532static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800533nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
534 struct nfsd4_commit *commit)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535{
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300536 gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp));
J. Bruce Fields75c096f2011-08-15 18:39:32 -0400537 return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset,
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800538 commit->co_count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539}
540
Al Virob37ad282006-10-19 23:28:59 -0700541static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800542nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
543 struct nfsd4_create *create)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544{
545 struct svc_fh resfh;
Al Virob37ad282006-10-19 23:28:59 -0700546 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547 dev_t rdev;
548
549 fh_init(&resfh, NFS4_FHSIZE);
550
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200551 status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR,
552 NFSD_MAY_CREATE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 if (status)
554 return status;
555
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800556 status = check_attr_support(rqstp, cstate, create->cr_bmval,
557 nfsd_attrmask);
558 if (status)
559 return status;
560
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561 switch (create->cr_type) {
562 case NF4LNK:
563 /* ugh! we have to null-terminate the linktext, or
564 * vfs_symlink() will choke. it is always safe to
565 * null-terminate by brute force, since at worst we
566 * will overwrite the first byte of the create namelen
567 * in the XDR buffer, which has already been extracted
568 * during XDR decode.
569 */
570 create->cr_linkname[create->cr_linklen] = 0;
571
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800572 status = nfsd_symlink(rqstp, &cstate->current_fh,
573 create->cr_name, create->cr_namelen,
574 create->cr_linkname, create->cr_linklen,
575 &resfh, &create->cr_iattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 break;
577
578 case NF4BLK:
579 rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
580 if (MAJOR(rdev) != create->cr_specdata1 ||
581 MINOR(rdev) != create->cr_specdata2)
582 return nfserr_inval;
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_IFBLK, rdev, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 break;
587
588 case NF4CHR:
589 rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
590 if (MAJOR(rdev) != create->cr_specdata1 ||
591 MINOR(rdev) != create->cr_specdata2)
592 return nfserr_inval;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800593 status = nfsd_create(rqstp, &cstate->current_fh,
594 create->cr_name, create->cr_namelen,
595 &create->cr_iattr,S_IFCHR, rdev, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 break;
597
598 case NF4SOCK:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800599 status = nfsd_create(rqstp, &cstate->current_fh,
600 create->cr_name, create->cr_namelen,
601 &create->cr_iattr, S_IFSOCK, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602 break;
603
604 case NF4FIFO:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800605 status = nfsd_create(rqstp, &cstate->current_fh,
606 create->cr_name, create->cr_namelen,
607 &create->cr_iattr, S_IFIFO, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608 break;
609
610 case NF4DIR:
611 create->cr_iattr.ia_valid &= ~ATTR_SIZE;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800612 status = nfsd_create(rqstp, &cstate->current_fh,
613 create->cr_name, create->cr_namelen,
614 &create->cr_iattr, S_IFDIR, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615 break;
616
617 default:
618 status = nfserr_badtype;
619 }
620
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800621 if (status)
622 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800624 if (create->cr_acl != NULL)
625 do_set_nfs4_acl(rqstp, &resfh, create->cr_acl,
626 create->cr_bmval);
627
628 fh_unlock(&cstate->current_fh);
629 set_change_info(&create->cr_cinfo, &cstate->current_fh);
630 fh_dup2(&cstate->current_fh, &resfh);
631out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 fh_put(&resfh);
633 return status;
634}
635
J.Bruce Fields71911552006-12-13 00:35:29 -0800636static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800637nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
638 struct nfsd4_getattr *getattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639{
Al Virob37ad282006-10-19 23:28:59 -0700640 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200642 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643 if (status)
644 return status;
645
646 if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
647 return nfserr_inval;
648
Andy Adamson7e705702009-04-03 08:29:11 +0300649 getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
650 getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
651 getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800653 getattr->ga_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654 return nfs_ok;
655}
656
J.Bruce Fields71911552006-12-13 00:35:29 -0800657static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800658nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
659 struct nfsd4_link *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660{
Al Virob37ad282006-10-19 23:28:59 -0700661 __be32 status = nfserr_nofilehandle;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800663 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 return status;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800665 status = nfsd_link(rqstp, &cstate->current_fh,
666 link->li_name, link->li_namelen, &cstate->save_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667 if (!status)
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800668 set_change_info(&link->li_cinfo, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669 return status;
670}
671
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500672static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673{
674 struct svc_fh tmp_fh;
Al Virob37ad282006-10-19 23:28:59 -0700675 __be32 ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676
677 fh_init(&tmp_fh, NFS4_FHSIZE);
J. Bruce Fieldsdf547ef2007-07-17 04:04:43 -0700678 ret = exp_pseudoroot(rqstp, &tmp_fh);
679 if (ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 return ret;
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500681 if (tmp_fh.fh_dentry == fh->fh_dentry) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 fh_put(&tmp_fh);
683 return nfserr_noent;
684 }
685 fh_put(&tmp_fh);
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500686 return nfsd_lookup(rqstp, fh, "..", 2, fh);
687}
688
689static __be32
690nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
691 void *arg)
692{
693 return nfsd4_do_lookupp(rqstp, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694}
695
J.Bruce Fields71911552006-12-13 00:35:29 -0800696static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800697nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
698 struct nfsd4_lookup *lookup)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800700 return nfsd_lookup(rqstp, &cstate->current_fh,
701 lookup->lo_name, lookup->lo_len,
702 &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703}
704
J.Bruce Fields71911552006-12-13 00:35:29 -0800705static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800706nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
707 struct nfsd4_read *read)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708{
Al Virob37ad282006-10-19 23:28:59 -0700709 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710
711 /* no need to check permission - this will be done in nfsd_read() */
712
NeilBrown7e06b7f2005-06-23 22:03:13 -0700713 read->rd_filp = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714 if (read->rd_offset >= OFFSET_MAX)
715 return nfserr_inval;
716
J. Bruce Fields9b3234b2012-12-04 18:03:46 -0500717 /*
718 * If we do a zero copy read, then a client will see read data
719 * that reflects the state of the file *after* performing the
720 * following compound.
721 *
722 * To ensure proper ordering, we therefore turn off zero copy if
723 * the client wants us to do more in this compound:
724 */
725 if (!nfsd4_last_compound_op(rqstp))
726 rqstp->rq_splice_ok = false;
727
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728 nfs4_lock_state();
729 /* check stateid */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400730 if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
731 cstate, &read->rd_stateid,
Benny Halevydd453df2009-04-03 08:28:41 +0300732 RD_STATE, &read->rd_filp))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733 dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
734 goto out;
735 }
NeilBrown7e06b7f2005-06-23 22:03:13 -0700736 if (read->rd_filp)
737 get_file(read->rd_filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 status = nfs_ok;
739out:
740 nfs4_unlock_state();
741 read->rd_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800742 read->rd_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 return status;
744}
745
J.Bruce Fields71911552006-12-13 00:35:29 -0800746static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800747nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
748 struct nfsd4_readdir *readdir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749{
750 u64 cookie = readdir->rd_cookie;
751 static const nfs4_verifier zeroverf;
752
753 /* no need to check permission - this will be done in nfsd_readdir() */
754
755 if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
756 return nfserr_inval;
757
Andy Adamson7e705702009-04-03 08:29:11 +0300758 readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
759 readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
760 readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761
Bernd Schubert832023b2011-08-08 17:38:08 +0200762 if ((cookie == 1) || (cookie == 2) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE)))
764 return nfserr_bad_cookie;
765
766 readdir->rd_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800767 readdir->rd_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768 return nfs_ok;
769}
770
J.Bruce Fields71911552006-12-13 00:35:29 -0800771static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800772nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
773 struct nfsd4_readlink *readlink)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774{
775 readlink->rl_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800776 readlink->rl_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777 return nfs_ok;
778}
779
J.Bruce Fields71911552006-12-13 00:35:29 -0800780static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800781nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
782 struct nfsd4_remove *remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783{
Al Virob37ad282006-10-19 23:28:59 -0700784 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700785
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400786 if (locks_in_grace(SVC_NET(rqstp)))
NeilBrownc815afc2005-06-23 22:03:00 -0700787 return nfserr_grace;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800788 status = nfsd_unlink(rqstp, &cstate->current_fh, 0,
789 remove->rm_name, remove->rm_namelen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790 if (!status) {
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800791 fh_unlock(&cstate->current_fh);
792 set_change_info(&remove->rm_cinfo, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793 }
794 return status;
795}
796
J.Bruce Fields71911552006-12-13 00:35:29 -0800797static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800798nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
799 struct nfsd4_rename *rename)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800{
Al Virob37ad282006-10-19 23:28:59 -0700801 __be32 status = nfserr_nofilehandle;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800803 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804 return status;
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400805 if (locks_in_grace(SVC_NET(rqstp)) &&
806 !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK))
NeilBrownc815afc2005-06-23 22:03:00 -0700807 return nfserr_grace;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800808 status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname,
809 rename->rn_snamelen, &cstate->current_fh,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810 rename->rn_tname, rename->rn_tnamelen);
811
812 /* the underlying filesystem returns different error's than required
813 * by NFSv4. both save_fh and current_fh have been verified.. */
814 if (status == nfserr_isdir)
815 status = nfserr_exist;
816 else if ((status == nfserr_notdir) &&
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800817 (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) &&
818 S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 status = nfserr_exist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820
821 if (!status) {
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800822 set_change_info(&rename->rn_sinfo, &cstate->current_fh);
823 set_change_info(&rename->rn_tinfo, &cstate->save_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824 }
825 return status;
826}
827
J.Bruce Fields71911552006-12-13 00:35:29 -0800828static __be32
Andy Adamsondcb488a32007-07-17 04:04:51 -0700829nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
830 struct nfsd4_secinfo *secinfo)
831{
832 struct svc_fh resfh;
833 struct svc_export *exp;
834 struct dentry *dentry;
835 __be32 err;
836
837 fh_init(&resfh, NFS4_FHSIZE);
J. Bruce Fields29a78a32011-04-09 11:28:53 -0400838 err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC);
839 if (err)
840 return err;
Andy Adamsondcb488a32007-07-17 04:04:51 -0700841 err = nfsd_lookup_dentry(rqstp, &cstate->current_fh,
842 secinfo->si_name, secinfo->si_namelen,
843 &exp, &dentry);
844 if (err)
845 return err;
846 if (dentry->d_inode == NULL) {
847 exp_put(exp);
848 err = nfserr_noent;
849 } else
850 secinfo->si_exp = exp;
851 dput(dentry);
J. Bruce Fields56560b92010-12-16 09:57:15 -0500852 if (cstate->minorversion)
853 /* See rfc 5661 section 2.6.3.1.1.8 */
854 fh_put(&cstate->current_fh);
Andy Adamsondcb488a32007-07-17 04:04:51 -0700855 return err;
856}
857
858static __be32
J. Bruce Fields04f4ad12010-12-16 09:51:13 -0500859nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
860 struct nfsd4_secinfo_no_name *sin)
861{
862 __be32 err;
863
864 switch (sin->sin_style) {
865 case NFS4_SECINFO_STYLE4_CURRENT_FH:
866 break;
867 case NFS4_SECINFO_STYLE4_PARENT:
868 err = nfsd4_do_lookupp(rqstp, &cstate->current_fh);
869 if (err)
870 return err;
871 break;
872 default:
873 return nfserr_inval;
874 }
875 exp_get(cstate->current_fh.fh_export);
876 sin->sin_exp = cstate->current_fh.fh_export;
877 fh_put(&cstate->current_fh);
878 return nfs_ok;
879}
880
881static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800882nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
883 struct nfsd4_setattr *setattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884{
Al Virob37ad282006-10-19 23:28:59 -0700885 __be32 status = nfs_ok;
Al Viro96f6f982012-04-12 23:47:00 -0400886 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888 if (setattr->sa_iattr.ia_valid & ATTR_SIZE) {
889 nfs4_lock_state();
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400890 status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate,
J. Bruce Fields6150ef02009-02-21 13:36:16 -0800891 &setattr->sa_stateid, WR_STATE, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892 nfs4_unlock_state();
J. Bruce Fields375c5542006-01-18 17:43:33 -0800893 if (status) {
Greg Banks3e3b4802006-10-02 02:17:41 -0700894 dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n");
J. Bruce Fields375c5542006-01-18 17:43:33 -0800895 return status;
896 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897 }
Al Viro96f6f982012-04-12 23:47:00 -0400898 err = fh_want_write(&cstate->current_fh);
899 if (err)
900 return nfserrno(err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901 status = nfs_ok;
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800902
903 status = check_attr_support(rqstp, cstate, setattr->sa_bmval,
904 nfsd_attrmask);
905 if (status)
906 goto out;
907
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908 if (setattr->sa_acl != NULL)
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800909 status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh,
910 setattr->sa_acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911 if (status)
Dave Hansen18f335a2008-02-15 14:37:38 -0800912 goto out;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800913 status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914 0, (time_t)0);
Dave Hansen18f335a2008-02-15 14:37:38 -0800915out:
Al Virobad0dcf2011-11-23 12:03:18 -0500916 fh_drop_write(&cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917 return status;
918}
919
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500920static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write)
921{
922 int i = 1;
923 int buflen = write->wr_buflen;
924
925 vec[0].iov_base = write->wr_head.iov_base;
926 vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len);
927 buflen -= vec[0].iov_len;
928
929 while (buflen) {
930 vec[i].iov_base = page_address(write->wr_pagelist[i - 1]);
931 vec[i].iov_len = min_t(int, PAGE_SIZE, buflen);
932 buflen -= vec[i].iov_len;
933 i++;
934 }
935 return i;
936}
937
J.Bruce Fields71911552006-12-13 00:35:29 -0800938static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800939nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
940 struct nfsd4_write *write)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941{
942 stateid_t *stateid = &write->wr_stateid;
943 struct file *filp = NULL;
Al Virob37ad282006-10-19 23:28:59 -0700944 __be32 status = nfs_ok;
David Shaw31dec252009-03-05 20:16:14 -0500945 unsigned long cnt;
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500946 int nvecs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947
948 /* no need to check permission - this will be done in nfsd_write() */
949
950 if (write->wr_offset >= OFFSET_MAX)
951 return nfserr_inval;
952
953 nfs4_lock_state();
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400954 status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
955 cstate, stateid, WR_STATE, &filp);
NeilBrown7e06b7f2005-06-23 22:03:13 -0700956 if (filp)
957 get_file(filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958 nfs4_unlock_state();
959
J. Bruce Fields375c5542006-01-18 17:43:33 -0800960 if (status) {
961 dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
962 return status;
963 }
964
David Shaw31dec252009-03-05 20:16:14 -0500965 cnt = write->wr_buflen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 write->wr_how_written = write->wr_stable_how;
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300967 gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500969 nvecs = fill_in_write_vector(rqstp->rq_vec, write);
970 WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec));
971
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800972 status = nfsd_write(rqstp, &cstate->current_fh, filp,
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500973 write->wr_offset, rqstp->rq_vec, nvecs,
David Shaw31dec252009-03-05 20:16:14 -0500974 &cnt, &write->wr_how_written);
NeilBrown7e06b7f2005-06-23 22:03:13 -0700975 if (filp)
976 fput(filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977
David Shaw31dec252009-03-05 20:16:14 -0500978 write->wr_bytes_written = cnt;
979
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981}
982
983/* This routine never returns NFS_OK! If there are no other errors, it
984 * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the
985 * attributes matched. VERIFY is implemented by mapping NFSERR_SAME
986 * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK.
987 */
Al Virob37ad282006-10-19 23:28:59 -0700988static __be32
J.Bruce Fieldsc954e2a2006-12-13 00:35:31 -0800989_nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800990 struct nfsd4_verify *verify)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991{
Al Viro2ebbc012006-10-19 23:28:58 -0700992 __be32 *buf, *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993 int count;
Al Virob37ad282006-10-19 23:28:59 -0700994 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200996 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997 if (status)
998 return status;
999
Yu Zhiguo3c8e0312009-05-16 16:22:31 +08001000 status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL);
1001 if (status)
1002 return status;
1003
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004 if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR)
1005 || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1))
1006 return nfserr_inval;
1007 if (verify->ve_attrlen & 3)
1008 return nfserr_inval;
1009
1010 /* count in words:
1011 * bitmap_len(1) + bitmap(2) + attr_len(1) = 4
1012 */
1013 count = 4 + (verify->ve_attrlen >> 2);
1014 buf = kmalloc(count << 2, GFP_KERNEL);
1015 if (!buf)
J. Bruce Fields3e772462011-08-10 19:07:33 -04001016 return nfserr_jukebox;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017
J. Bruce Fields84822d02012-12-14 17:57:50 -05001018 p = buf;
J.Bruce Fieldsca364312006-12-13 00:35:27 -08001019 status = nfsd4_encode_fattr(&cstate->current_fh,
1020 cstate->current_fh.fh_export,
J. Bruce Fields84822d02012-12-14 17:57:50 -05001021 cstate->current_fh.fh_dentry, &p,
1022 count, verify->ve_bmval,
Frank Filz406a7ea2007-11-27 11:34:05 -08001023 rqstp, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024
1025 /* this means that nfsd4_encode_fattr() ran out of space */
J. Bruce Fields84822d02012-12-14 17:57:50 -05001026 if (status == nfserr_resource)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027 status = nfserr_not_same;
1028 if (status)
1029 goto out_kfree;
1030
Benny Halevy95ec28c2009-04-03 08:29:08 +03001031 /* skip bitmap */
1032 p = buf + 1 + ntohl(buf[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033 status = nfserr_not_same;
1034 if (ntohl(*p++) != verify->ve_attrlen)
1035 goto out_kfree;
1036 if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen))
1037 status = nfserr_same;
1038
1039out_kfree:
1040 kfree(buf);
1041 return status;
1042}
1043
J.Bruce Fieldsc954e2a2006-12-13 00:35:31 -08001044static __be32
1045nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
1046 struct nfsd4_verify *verify)
1047{
1048 __be32 status;
1049
1050 status = _nfsd4_verify(rqstp, cstate, verify);
1051 return status == nfserr_not_same ? nfs_ok : status;
1052}
1053
1054static __be32
1055nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
1056 struct nfsd4_verify *verify)
1057{
1058 __be32 status;
1059
1060 status = _nfsd4_verify(rqstp, cstate, verify);
1061 return status == nfserr_same ? nfs_ok : status;
1062}
1063
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064/*
1065 * NULL call.
1066 */
Al Viro7111c662006-10-19 23:28:45 -07001067static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
1069{
1070 return nfs_ok;
1071}
1072
Shankar Anande2b20952006-07-10 04:45:44 -07001073static inline void nfsd4_increment_op_stats(u32 opnum)
1074{
1075 if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP)
1076 nfsdstats.nfs4_opcount[opnum]++;
1077}
1078
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001079typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
1080 void *);
Mi Jinlong58e7b332011-08-28 18:18:56 +08001081typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op);
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001082typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *);
1083typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *);
Mi Jinlong58e7b332011-08-28 18:18:56 +08001084
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001085enum nfsd4_op_flags {
1086 ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */
Mi Jinlong5ece3ca2011-02-18 09:08:31 +08001087 ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */
1088 ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */
J. Bruce Fields68d93182011-04-08 17:00:50 -04001089 /* For rfc 5661 section 2.6.3.1.1: */
1090 OP_HANDLES_WRONGSEC = 1 << 3,
1091 OP_IS_PUTFH_LIKE = 1 << 4,
J. Bruce Fields10910062011-01-24 12:11:02 -05001092 /*
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001093 * These are the ops whose result size we estimate before
1094 * encoding, to avoid performing an op then not being able to
1095 * respond or cache a response. This includes writes and setattrs
1096 * as well as the operations usually called "nonidempotent":
1097 */
1098 OP_MODIFIES_SOMETHING = 1 << 5,
1099 /*
1100 * Cache compounds containing these ops in the xid-based drc:
J. Bruce Fields10910062011-01-24 12:11:02 -05001101 * We use the DRC for compounds containing non-idempotent
1102 * operations, *except* those that are 4.1-specific (since
1103 * sessions provide their own EOS), and except for stateful
1104 * operations other than setclientid and setclientid_confirm
1105 * (since sequence numbers provide EOS for open, lock, etc in
1106 * the v4.0 case).
1107 */
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001108 OP_CACHEME = 1 << 6,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001109 /*
1110 * These are ops which clear current state id.
1111 */
1112 OP_CLEAR_STATEID = 1 << 7,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001113};
1114
1115struct nfsd4_operation {
1116 nfsd4op_func op_func;
1117 u32 op_flags;
1118 char *op_name;
Mi Jinlong58e7b332011-08-28 18:18:56 +08001119 /* Try to get response size before operation */
1120 nfsd4op_rsize op_rsize_bop;
Bryan Schumaker24ff99c2012-08-14 15:55:08 -04001121 stateid_getter op_get_currentstateid;
1122 stateid_setter op_set_currentstateid;
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001123};
1124
1125static struct nfsd4_operation nfsd4_ops[];
1126
Trond Myklebust8f199b82012-03-20 15:11:17 -04001127#ifdef NFSD_DEBUG
Adrian Bunkf1c7f792008-08-08 19:26:42 +03001128static const char *nfsd4_op_name(unsigned opnum);
Trond Myklebust8f199b82012-03-20 15:11:17 -04001129#endif
Benny Halevyb001a1b2008-07-02 11:15:03 +03001130
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131/*
J. Bruce Fields57716352010-04-21 12:27:19 -04001132 * Enforce NFSv4.1 COMPOUND ordering rules:
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001133 *
J. Bruce Fields57716352010-04-21 12:27:19 -04001134 * Also note, enforced elsewhere:
1135 * - SEQUENCE other than as first op results in
1136 * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().)
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001137 * - BIND_CONN_TO_SESSION must be the only op in its compound.
1138 * (Enforced in nfsd4_bind_conn_to_session().)
J. Bruce Fields57716352010-04-21 12:27:19 -04001139 * - DESTROY_SESSION must be the final operation in a compound, if
1140 * sessionid's in SEQUENCE and DESTROY_SESSION are the same.
1141 * (Enforced in nfsd4_destroy_session().)
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001142 */
J. Bruce Fields57716352010-04-21 12:27:19 -04001143static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args)
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001144{
J. Bruce Fields57716352010-04-21 12:27:19 -04001145 struct nfsd4_op *op = &args->ops[0];
1146
1147 /* These ordering requirements don't apply to NFSv4.0: */
1148 if (args->minorversion == 0)
1149 return nfs_ok;
1150 /* This is weird, but OK, not our problem: */
1151 if (args->opcnt == 0)
1152 return nfs_ok;
1153 if (op->status == nfserr_op_illegal)
1154 return nfs_ok;
1155 if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP))
1156 return nfserr_op_not_in_session;
1157 if (op->opnum == OP_SEQUENCE)
1158 return nfs_ok;
1159 if (args->opcnt != 1)
1160 return nfserr_not_only_op;
1161 return nfs_ok;
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001162}
1163
J. Bruce Fields22b03212011-04-09 11:23:24 -04001164static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op)
1165{
1166 return &nfsd4_ops[op->opnum];
1167}
1168
J. Bruce Fields10910062011-01-24 12:11:02 -05001169bool nfsd4_cache_this_op(struct nfsd4_op *op)
1170{
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001171 return OPDESC(op)->op_flags & OP_CACHEME;
J. Bruce Fields10910062011-01-24 12:11:02 -05001172}
1173
J. Bruce Fields68d93182011-04-08 17:00:50 -04001174static bool need_wrongsec_check(struct svc_rqst *rqstp)
1175{
1176 struct nfsd4_compoundres *resp = rqstp->rq_resp;
1177 struct nfsd4_compoundargs *argp = rqstp->rq_argp;
1178 struct nfsd4_op *this = &argp->ops[resp->opcnt - 1];
1179 struct nfsd4_op *next = &argp->ops[resp->opcnt];
1180 struct nfsd4_operation *thisd;
1181 struct nfsd4_operation *nextd;
1182
1183 thisd = OPDESC(this);
1184 /*
1185 * Most ops check wronsec on our own; only the putfh-like ops
1186 * have special rules.
1187 */
1188 if (!(thisd->op_flags & OP_IS_PUTFH_LIKE))
1189 return false;
1190 /*
1191 * rfc 5661 2.6.3.1.1.6: don't bother erroring out a
1192 * put-filehandle operation if we're not going to use the
1193 * result:
1194 */
1195 if (argp->opcnt == resp->opcnt)
1196 return false;
1197
1198 nextd = OPDESC(next);
1199 /*
1200 * Rest of 2.6.3.1.1: certain operations will return WRONGSEC
1201 * errors themselves as necessary; others should check for them
1202 * now:
1203 */
1204 return !(nextd->op_flags & OP_HANDLES_WRONGSEC);
1205}
1206
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001207/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208 * COMPOUND call.
1209 */
Al Viro7111c662006-10-19 23:28:45 -07001210static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211nfsd4_proc_compound(struct svc_rqst *rqstp,
1212 struct nfsd4_compoundargs *args,
1213 struct nfsd4_compoundres *resp)
1214{
1215 struct nfsd4_op *op;
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001216 struct nfsd4_operation *opdesc;
Andy Adamsone354d572009-03-28 11:30:52 +03001217 struct nfsd4_compound_state *cstate = &resp->cstate;
J.Bruce Fieldse5710192006-12-13 00:35:20 -08001218 int slack_bytes;
Mi Jinlong58e7b332011-08-28 18:18:56 +08001219 u32 plen = 0;
Al Virob37ad282006-10-19 23:28:59 -07001220 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001221
Linus Torvalds1da177e2005-04-16 15:20:36 -07001222 resp->xbuf = &rqstp->rq_res;
Andy Adamsone354d572009-03-28 11:30:52 +03001223 resp->p = rqstp->rq_res.head[0].iov_base +
1224 rqstp->rq_res.head[0].iov_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225 resp->tagp = resp->p;
1226 /* reserve space for: taglen, tag, and opcnt */
1227 resp->p += 2 + XDR_QUADLEN(args->taglen);
1228 resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE;
1229 resp->taglen = args->taglen;
1230 resp->tag = args->tag;
1231 resp->opcnt = 0;
1232 resp->rqstp = rqstp;
Andy Adamsond87a8ad2009-04-03 08:28:53 +03001233 resp->cstate.minorversion = args->minorversion;
Andy Adamsone354d572009-03-28 11:30:52 +03001234 resp->cstate.replay_owner = NULL;
J. Bruce Fields26c0c752010-04-24 15:35:43 -04001235 resp->cstate.session = NULL;
Andy Adamsone354d572009-03-28 11:30:52 +03001236 fh_init(&resp->cstate.current_fh, NFS4_FHSIZE);
1237 fh_init(&resp->cstate.save_fh, NFS4_FHSIZE);
NeilBrown8ff30fa2010-08-12 17:04:07 +10001238 /*
1239 * Don't use the deferral mechanism for NFSv4; compounds make it
1240 * too hard to avoid non-idempotency problems.
1241 */
1242 rqstp->rq_usedeferral = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243
1244 /*
1245 * According to RFC3010, this takes precedence over all other errors.
1246 */
1247 status = nfserr_minor_vers_mismatch;
Benny Halevy8daf2202009-04-03 08:28:59 +03001248 if (args->minorversion > nfsd_supported_minorversion)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249 goto out;
1250
J. Bruce Fields57716352010-04-21 12:27:19 -04001251 status = nfs41_check_op_ordering(args);
1252 if (status) {
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001253 op = &args->ops[0];
J. Bruce Fields57716352010-04-21 12:27:19 -04001254 op->status = status;
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001255 goto encode_op;
1256 }
1257
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258 while (!status && resp->opcnt < args->opcnt) {
1259 op = &args->ops[resp->opcnt++];
1260
Benny Halevyb001a1b2008-07-02 11:15:03 +03001261 dprintk("nfsv4 compound op #%d/%d: %d (%s)\n",
1262 resp->opcnt, args->opcnt, op->opnum,
1263 nfsd4_op_name(op->opnum));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264 /*
1265 * The XDR decode routines may have pre-set op->status;
1266 * for example, if there is a miscellaneous XDR error
1267 * it will be set to nfserr_bad_xdr.
1268 */
J. Bruce Fields9d313b12013-02-28 12:51:49 -08001269 if (op->status) {
1270 if (op->opnum == OP_OPEN)
1271 op->status = nfsd4_open_omfg(rqstp, cstate, op);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 goto encode_op;
J. Bruce Fields9d313b12013-02-28 12:51:49 -08001273 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274
1275 /* We must be able to encode a successful response to
1276 * this operation, with enough room left over to encode a
1277 * failed response to the next operation. If we don't
1278 * have enough room, fail with ERR_RESOURCE.
1279 */
J.Bruce Fieldse5710192006-12-13 00:35:20 -08001280 slack_bytes = (char *)resp->end - (char *)resp->p;
1281 if (slack_bytes < COMPOUND_SLACK_SPACE
1282 + COMPOUND_ERR_SLACK_SPACE) {
1283 BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 op->status = nfserr_resource;
1285 goto encode_op;
1286 }
1287
J. Bruce Fields22b03212011-04-09 11:23:24 -04001288 opdesc = OPDESC(op);
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001289
J.Bruce Fieldsca364312006-12-13 00:35:27 -08001290 if (!cstate->current_fh.fh_dentry) {
J.Bruce Fields27d630e2006-12-13 00:35:43 -08001291 if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) {
J.Bruce Fields42ca0992006-10-04 02:16:20 -07001292 op->status = nfserr_nofilehandle;
1293 goto encode_op;
1294 }
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001295 } else if (cstate->current_fh.fh_export->ex_fslocs.migrated &&
1296 !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) {
J.Bruce Fields42ca0992006-10-04 02:16:20 -07001297 op->status = nfserr_moved;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298 goto encode_op;
1299 }
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001300
Mi Jinlong58e7b332011-08-28 18:18:56 +08001301 /* If op is non-idempotent */
1302 if (opdesc->op_flags & OP_MODIFIES_SOMETHING) {
1303 plen = opdesc->op_rsize_bop(rqstp, op);
1304 op->status = nfsd4_check_resp_size(resp, plen);
1305 }
1306
1307 if (op->status)
1308 goto encode_op;
1309
J. Bruce Fieldsb600de72013-02-28 11:55:46 -08001310 if (opdesc->op_get_currentstateid)
1311 opdesc->op_get_currentstateid(cstate, &op->u);
1312 op->status = opdesc->op_func(rqstp, cstate, &op->u);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001313
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001314 if (!op->status) {
1315 if (opdesc->op_set_currentstateid)
1316 opdesc->op_set_currentstateid(cstate, &op->u);
1317
1318 if (opdesc->op_flags & OP_CLEAR_STATEID)
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +01001319 clear_current_stateid(cstate);
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001320
1321 if (need_wrongsec_check(rqstp))
1322 op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp);
1323 }
J. Bruce Fields68d93182011-04-08 17:00:50 -04001324
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325encode_op:
Andy Adamson49557cc2009-07-23 19:02:16 -04001326 /* Only from SEQUENCE */
Andy Adamsonda3846a2009-04-03 08:28:22 +03001327 if (resp->cstate.status == nfserr_replay_cache) {
1328 dprintk("%s NFS4.1 replay from cache\n", __func__);
Andy Adamsonabfabf82009-07-23 19:02:18 -04001329 status = op->status;
Andy Adamsonda3846a2009-04-03 08:28:22 +03001330 goto out;
1331 }
Al Viroa90b0612006-10-19 23:29:03 -07001332 if (op->status == nfserr_replay_me) {
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001333 op->replay = &cstate->replay_owner->so_replay;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 nfsd4_encode_replay(resp, op);
1335 status = op->status = op->replay->rp_status;
1336 } else {
1337 nfsd4_encode_operation(resp, op);
1338 status = op->status;
1339 }
Benny Halevy04077172008-12-15 19:40:49 +02001340
1341 dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n",
1342 args->ops, args->opcnt, resp->opcnt, op->opnum,
1343 be32_to_cpu(status));
1344
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001345 if (cstate->replay_owner) {
J. Bruce Fields5ec094c2011-08-30 17:02:48 -04001346 nfs4_unlock_state();
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001347 cstate->replay_owner = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348 }
NeilBrown7e06b7f2005-06-23 22:03:13 -07001349 /* XXX Ugh, we need to get rid of this kind of special case: */
1350 if (op->opnum == OP_READ && op->u.read.rd_filp)
1351 fput(op->u.read.rd_filp);
Shankar Anande2b20952006-07-10 04:45:44 -07001352
1353 nfsd4_increment_op_stats(op->opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354 }
1355
Andy Adamsonda3846a2009-04-03 08:28:22 +03001356 resp->cstate.status = status;
Andy Adamsone354d572009-03-28 11:30:52 +03001357 fh_put(&resp->cstate.current_fh);
1358 fh_put(&resp->cstate.save_fh);
1359 BUG_ON(resp->cstate.replay_owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360out:
Andy Adamson2f425872009-04-03 08:27:32 +03001361 /* Reset deferral mechanism for RPC deferrals */
1362 rqstp->rq_usedeferral = 1;
J. Bruce Fields3b12cd92008-05-05 17:17:44 -04001363 dprintk("nfsv4 compound returned %d\n", ntohl(status));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 return status;
1365}
1366
Mi Jinlong58e7b332011-08-28 18:18:56 +08001367#define op_encode_hdr_size (2)
1368#define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
1369#define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
1370#define op_encode_change_info_maxsz (5)
1371#define nfs4_fattr_bitmap_maxsz (4)
1372
1373#define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
1374#define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz)
1375
1376#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
1377
1378#define op_encode_ace_maxsz (3 + nfs4_owner_maxsz)
1379#define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \
1380 op_encode_ace_maxsz)
1381
1382#define op_encode_channel_attrs_maxsz (6 + 1 + 1)
1383
1384static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1385{
1386 return (op_encode_hdr_size) * sizeof(__be32);
1387}
1388
1389static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1390{
1391 return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32);
1392}
1393
1394static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1395{
1396 return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
1397}
1398
1399static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1400{
1401 return (op_encode_hdr_size + op_encode_change_info_maxsz
1402 + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
1403}
1404
1405static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1406{
1407 return (op_encode_hdr_size + op_encode_change_info_maxsz)
1408 * sizeof(__be32);
1409}
1410
1411static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1412{
1413 return (op_encode_hdr_size + op_encode_lock_denied_maxsz)
1414 * sizeof(__be32);
1415}
1416
1417static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1418{
1419 return (op_encode_hdr_size + op_encode_stateid_maxsz
1420 + op_encode_change_info_maxsz + 1
1421 + nfs4_fattr_bitmap_maxsz
1422 + op_encode_delegation_maxsz) * sizeof(__be32);
1423}
1424
1425static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1426{
1427 u32 maxcount = 0, rlen = 0;
1428
1429 maxcount = svc_max_payload(rqstp);
1430 rlen = op->u.read.rd_length;
1431
1432 if (rlen > maxcount)
1433 rlen = maxcount;
1434
1435 return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen;
1436}
1437
1438static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1439{
1440 u32 rlen = op->u.readdir.rd_maxcount;
1441
1442 if (rlen > PAGE_SIZE)
1443 rlen = PAGE_SIZE;
1444
1445 return (op_encode_hdr_size + op_encode_verifier_maxsz)
1446 * sizeof(__be32) + rlen;
1447}
1448
1449static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1450{
1451 return (op_encode_hdr_size + op_encode_change_info_maxsz)
1452 * sizeof(__be32);
1453}
1454
1455static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1456{
1457 return (op_encode_hdr_size + op_encode_change_info_maxsz
1458 + op_encode_change_info_maxsz) * sizeof(__be32);
1459}
1460
1461static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1462{
1463 return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
1464}
1465
1466static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1467{
1468 return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32);
1469}
1470
1471static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1472{
1473 return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
1474}
1475
1476static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1477{
1478 return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\
1479 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\
1480 2 + /*eir_server_owner.so_minor_id */\
1481 /* eir_server_owner.so_major_id<> */\
1482 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
1483 /* eir_server_scope<> */\
1484 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
1485 1 + /* eir_server_impl_id array length */\
1486 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32);
1487}
1488
1489static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1490{
1491 return (op_encode_hdr_size + \
1492 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\
1493 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32);
1494}
1495
1496static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1497{
1498 return (op_encode_hdr_size + \
1499 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\
1500 2 + /* csr_sequence, csr_flags */\
1501 op_encode_channel_attrs_maxsz + \
1502 op_encode_channel_attrs_maxsz) * sizeof(__be32);
1503}
1504
Benny Halevy20766012009-03-28 11:32:05 +03001505static struct nfsd4_operation nfsd4_ops[] = {
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001506 [OP_ACCESS] = {
1507 .op_func = (nfsd4op_func)nfsd4_access,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001508 .op_name = "OP_ACCESS",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001509 },
1510 [OP_CLOSE] = {
1511 .op_func = (nfsd4op_func)nfsd4_close,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001512 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001513 .op_name = "OP_CLOSE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001514 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001515 .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid,
1516 .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001517 },
1518 [OP_COMMIT] = {
1519 .op_func = (nfsd4op_func)nfsd4_commit,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001520 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001521 .op_name = "OP_COMMIT",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001522 .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001523 },
1524 [OP_CREATE] = {
1525 .op_func = (nfsd4op_func)nfsd4_create,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001526 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001527 .op_name = "OP_CREATE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001528 .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001529 },
1530 [OP_DELEGRETURN] = {
1531 .op_func = (nfsd4op_func)nfsd4_delegreturn,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001532 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001533 .op_name = "OP_DELEGRETURN",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001534 .op_rsize_bop = nfsd4_only_status_rsize,
Tigran Mkrtchyan9428fe12012-02-13 22:55:31 +01001535 .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001536 },
1537 [OP_GETATTR] = {
1538 .op_func = (nfsd4op_func)nfsd4_getattr,
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001539 .op_flags = ALLOWED_ON_ABSENT_FS,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001540 .op_name = "OP_GETATTR",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001541 },
1542 [OP_GETFH] = {
1543 .op_func = (nfsd4op_func)nfsd4_getfh,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001544 .op_name = "OP_GETFH",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001545 },
1546 [OP_LINK] = {
1547 .op_func = (nfsd4op_func)nfsd4_link,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001548 .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING
1549 | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001550 .op_name = "OP_LINK",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001551 .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001552 },
1553 [OP_LOCK] = {
1554 .op_func = (nfsd4op_func)nfsd4_lock,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001555 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001556 .op_name = "OP_LOCK",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001557 .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
Tigran Mkrtchyan62cd4a52012-02-13 22:55:25 +01001558 .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001559 },
1560 [OP_LOCKT] = {
1561 .op_func = (nfsd4op_func)nfsd4_lockt,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001562 .op_name = "OP_LOCKT",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001563 },
1564 [OP_LOCKU] = {
1565 .op_func = (nfsd4op_func)nfsd4_locku,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001566 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001567 .op_name = "OP_LOCKU",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001568 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan62cd4a52012-02-13 22:55:25 +01001569 .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001570 },
1571 [OP_LOOKUP] = {
1572 .op_func = (nfsd4op_func)nfsd4_lookup,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001573 .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001574 .op_name = "OP_LOOKUP",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001575 },
1576 [OP_LOOKUPP] = {
1577 .op_func = (nfsd4op_func)nfsd4_lookupp,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001578 .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001579 .op_name = "OP_LOOKUPP",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001580 },
1581 [OP_NVERIFY] = {
1582 .op_func = (nfsd4op_func)nfsd4_nverify,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001583 .op_name = "OP_NVERIFY",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001584 },
1585 [OP_OPEN] = {
1586 .op_func = (nfsd4op_func)nfsd4_open,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001587 .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001588 .op_name = "OP_OPEN",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001589 .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001590 .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001591 },
1592 [OP_OPEN_CONFIRM] = {
1593 .op_func = (nfsd4op_func)nfsd4_open_confirm,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001594 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001595 .op_name = "OP_OPEN_CONFIRM",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001596 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001597 },
1598 [OP_OPEN_DOWNGRADE] = {
1599 .op_func = (nfsd4op_func)nfsd4_open_downgrade,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001600 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001601 .op_name = "OP_OPEN_DOWNGRADE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001602 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan9428fe12012-02-13 22:55:31 +01001603 .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid,
1604 .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001605 },
1606 [OP_PUTFH] = {
1607 .op_func = (nfsd4op_func)nfsd4_putfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001608 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001609 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1610 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001611 .op_name = "OP_PUTFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001612 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001613 },
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001614 [OP_PUTPUBFH] = {
J. Bruce Fieldsa1c8c4d2009-03-09 12:17:29 -04001615 .op_func = (nfsd4op_func)nfsd4_putrootfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001616 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001617 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1618 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001619 .op_name = "OP_PUTPUBFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001620 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001621 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001622 [OP_PUTROOTFH] = {
1623 .op_func = (nfsd4op_func)nfsd4_putrootfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001624 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001625 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1626 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001627 .op_name = "OP_PUTROOTFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001628 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001629 },
1630 [OP_READ] = {
1631 .op_func = (nfsd4op_func)nfsd4_read,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001632 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001633 .op_name = "OP_READ",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001634 .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize,
Tigran Mkrtchyan30813e22012-02-13 22:55:26 +01001635 .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001636 },
1637 [OP_READDIR] = {
1638 .op_func = (nfsd4op_func)nfsd4_readdir,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001639 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001640 .op_name = "OP_READDIR",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001641 .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001642 },
1643 [OP_READLINK] = {
1644 .op_func = (nfsd4op_func)nfsd4_readlink,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001645 .op_name = "OP_READLINK",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001646 },
1647 [OP_REMOVE] = {
1648 .op_func = (nfsd4op_func)nfsd4_remove,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001649 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001650 .op_name = "OP_REMOVE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001651 .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001652 },
1653 [OP_RENAME] = {
1654 .op_func = (nfsd4op_func)nfsd4_rename,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001655 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001656 .op_name = "OP_RENAME",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001657 .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001658 },
1659 [OP_RENEW] = {
1660 .op_func = (nfsd4op_func)nfsd4_renew,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001661 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
1662 | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001663 .op_name = "OP_RENEW",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001664 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
1665
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001666 },
1667 [OP_RESTOREFH] = {
1668 .op_func = (nfsd4op_func)nfsd4_restorefh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001669 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Mi Jinlong58e7b332011-08-28 18:18:56 +08001670 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001671 .op_name = "OP_RESTOREFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001672 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001673 },
1674 [OP_SAVEFH] = {
1675 .op_func = (nfsd4op_func)nfsd4_savefh,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001676 .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001677 .op_name = "OP_SAVEFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001678 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001679 },
Andy Adamsondcb488a32007-07-17 04:04:51 -07001680 [OP_SECINFO] = {
1681 .op_func = (nfsd4op_func)nfsd4_secinfo,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001682 .op_flags = OP_HANDLES_WRONGSEC,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001683 .op_name = "OP_SECINFO",
Andy Adamsondcb488a32007-07-17 04:04:51 -07001684 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001685 [OP_SETATTR] = {
1686 .op_func = (nfsd4op_func)nfsd4_setattr,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001687 .op_name = "OP_SETATTR",
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001688 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001689 .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize,
Tigran Mkrtchyan1e97b512012-02-13 22:55:30 +01001690 .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001691 },
1692 [OP_SETCLIENTID] = {
1693 .op_func = (nfsd4op_func)nfsd4_setclientid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001694 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001695 | OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001696 .op_name = "OP_SETCLIENTID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001697 .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001698 },
1699 [OP_SETCLIENTID_CONFIRM] = {
1700 .op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001701 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001702 | OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001703 .op_name = "OP_SETCLIENTID_CONFIRM",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001704 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001705 },
1706 [OP_VERIFY] = {
1707 .op_func = (nfsd4op_func)nfsd4_verify,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001708 .op_name = "OP_VERIFY",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001709 },
1710 [OP_WRITE] = {
1711 .op_func = (nfsd4op_func)nfsd4_write,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001712 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001713 .op_name = "OP_WRITE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001714 .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
Tigran Mkrtchyan30813e22012-02-13 22:55:26 +01001715 .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001716 },
1717 [OP_RELEASE_LOCKOWNER] = {
1718 .op_func = (nfsd4op_func)nfsd4_release_lockowner,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001719 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
1720 | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001721 .op_name = "OP_RELEASE_LOCKOWNER",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001722 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001723 },
Andy Adamson069b6ad2009-04-03 08:27:58 +03001724
1725 /* NFSv4.1 operations */
1726 [OP_EXCHANGE_ID] = {
1727 .op_func = (nfsd4op_func)nfsd4_exchange_id,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001728 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1729 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001730 .op_name = "OP_EXCHANGE_ID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001731 .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001732 },
J. Bruce Fieldscb73a9f2012-11-01 18:09:48 -04001733 [OP_BACKCHANNEL_CTL] = {
1734 .op_func = (nfsd4op_func)nfsd4_backchannel_ctl,
1735 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
1736 .op_name = "OP_BACKCHANNEL_CTL",
1737 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
1738 },
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001739 [OP_BIND_CONN_TO_SESSION] = {
1740 .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001741 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1742 | OP_MODIFIES_SOMETHING,
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001743 .op_name = "OP_BIND_CONN_TO_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001744 .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize,
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001745 },
Andy Adamson069b6ad2009-04-03 08:27:58 +03001746 [OP_CREATE_SESSION] = {
1747 .op_func = (nfsd4op_func)nfsd4_create_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001748 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1749 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001750 .op_name = "OP_CREATE_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001751 .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001752 },
1753 [OP_DESTROY_SESSION] = {
1754 .op_func = (nfsd4op_func)nfsd4_destroy_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001755 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1756 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001757 .op_name = "OP_DESTROY_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001758 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001759 },
1760 [OP_SEQUENCE] = {
1761 .op_func = (nfsd4op_func)nfsd4_sequence,
Andy Adamsonf9bb94c42009-04-03 08:28:12 +03001762 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001763 .op_name = "OP_SEQUENCE",
1764 },
Benny Halevy094b5d72011-06-16 11:39:10 -04001765 [OP_DESTROY_CLIENTID] = {
Mi Jinlong345c2842011-10-20 17:51:39 +08001766 .op_func = (nfsd4op_func)nfsd4_destroy_clientid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001767 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1768 | OP_MODIFIES_SOMETHING,
Benny Halevy094b5d72011-06-16 11:39:10 -04001769 .op_name = "OP_DESTROY_CLIENTID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001770 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Benny Halevy094b5d72011-06-16 11:39:10 -04001771 },
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001772 [OP_RECLAIM_COMPLETE] = {
1773 .op_func = (nfsd4op_func)nfsd4_reclaim_complete,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001774 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001775 .op_name = "OP_RECLAIM_COMPLETE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001776 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001777 },
J. Bruce Fields04f4ad12010-12-16 09:51:13 -05001778 [OP_SECINFO_NO_NAME] = {
1779 .op_func = (nfsd4op_func)nfsd4_secinfo_no_name,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001780 .op_flags = OP_HANDLES_WRONGSEC,
J. Bruce Fields04f4ad12010-12-16 09:51:13 -05001781 .op_name = "OP_SECINFO_NO_NAME",
1782 },
Bryan Schumaker17456802011-07-13 10:50:48 -04001783 [OP_TEST_STATEID] = {
1784 .op_func = (nfsd4op_func)nfsd4_test_stateid,
1785 .op_flags = ALLOWED_WITHOUT_FH,
1786 .op_name = "OP_TEST_STATEID",
1787 },
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001788 [OP_FREE_STATEID] = {
1789 .op_func = (nfsd4op_func)nfsd4_free_stateid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001790 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001791 .op_name = "OP_FREE_STATEID",
J. Bruce Fieldsa1dc6952012-12-17 18:17:13 -05001792 .op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001793 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001794 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001795};
1796
Trond Myklebust8f199b82012-03-20 15:11:17 -04001797#ifdef NFSD_DEBUG
Adrian Bunkf1c7f792008-08-08 19:26:42 +03001798static const char *nfsd4_op_name(unsigned opnum)
Benny Halevyb001a1b2008-07-02 11:15:03 +03001799{
1800 if (opnum < ARRAY_SIZE(nfsd4_ops))
1801 return nfsd4_ops[opnum].op_name;
1802 return "unknown_operation";
1803}
Trond Myklebust8f199b82012-03-20 15:11:17 -04001804#endif
Benny Halevyb001a1b2008-07-02 11:15:03 +03001805
Linus Torvalds1da177e2005-04-16 15:20:36 -07001806#define nfsd4_voidres nfsd4_voidargs
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807struct nfsd4_voidargs { int dummy; };
1808
Linus Torvalds1da177e2005-04-16 15:20:36 -07001809static struct svc_procedure nfsd_procedures4[2] = {
Yu Zhiguo0a93a472009-05-19 14:09:54 +08001810 [NFSPROC4_NULL] = {
1811 .pc_func = (svc_procfunc) nfsd4_proc_null,
1812 .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres,
1813 .pc_argsize = sizeof(struct nfsd4_voidargs),
1814 .pc_ressize = sizeof(struct nfsd4_voidres),
1815 .pc_cachetype = RC_NOCACHE,
1816 .pc_xdrressize = 1,
1817 },
1818 [NFSPROC4_COMPOUND] = {
1819 .pc_func = (svc_procfunc) nfsd4_proc_compound,
1820 .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs,
1821 .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres,
1822 .pc_argsize = sizeof(struct nfsd4_compoundargs),
1823 .pc_ressize = sizeof(struct nfsd4_compoundres),
J. Bruce Fields3e98abf2011-07-16 17:15:10 -04001824 .pc_release = nfsd4_release_compoundargs,
Yu Zhiguo0a93a472009-05-19 14:09:54 +08001825 .pc_cachetype = RC_NOCACHE,
1826 .pc_xdrressize = NFSD_BUFSIZE/4,
1827 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07001828};
1829
1830struct svc_version nfsd_version4 = {
1831 .vs_vers = 4,
1832 .vs_nproc = 2,
1833 .vs_proc = nfsd_procedures4,
1834 .vs_dispatch = nfsd_dispatch,
1835 .vs_xdrsize = NFS4_SVC_XDRSIZE,
1836};
1837
1838/*
1839 * Local variables:
1840 * c-basic-offset: 8
1841 * End:
1842 */