blob: 419572f33b72dafaf04a770fb53e29e250e5f42b [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
David Quigley18032ca2013-05-02 13:19:10 -040045#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
46#include <linux/security.h>
47
48static inline void
49nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval)
50{
51 struct inode *inode = resfh->fh_dentry->d_inode;
52 int status;
53
54 mutex_lock(&inode->i_mutex);
55 status = security_inode_setsecctx(resfh->fh_dentry,
56 label->data, label->len);
57 mutex_unlock(&inode->i_mutex);
58
59 if (status)
60 /*
61 * XXX: We should really fail the whole open, but we may
62 * already have created a new file, so it may be too
63 * late. For now this seems the least of evils:
64 */
65 bmval[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
66
67 return;
68}
69#else
70static inline void
71nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval)
72{ }
73#endif
74
Linus Torvalds1da177e2005-04-16 15:20:36 -070075#define NFSDDBG_FACILITY NFSDDBG_PROC
76
Yu Zhiguo3c8e0312009-05-16 16:22:31 +080077static u32 nfsd_attrmask[] = {
78 NFSD_WRITEABLE_ATTRS_WORD0,
79 NFSD_WRITEABLE_ATTRS_WORD1,
80 NFSD_WRITEABLE_ATTRS_WORD2
81};
82
83static u32 nfsd41_ex_attrmask[] = {
84 NFSD_SUPPATTR_EXCLCREAT_WORD0,
85 NFSD_SUPPATTR_EXCLCREAT_WORD1,
86 NFSD_SUPPATTR_EXCLCREAT_WORD2
87};
88
89static __be32
90check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
91 u32 *bmval, u32 *writable)
92{
93 struct dentry *dentry = cstate->current_fh.fh_dentry;
Yu Zhiguo3c8e0312009-05-16 16:22:31 +080094
95 /*
96 * Check about attributes are supported by the NFSv4 server or not.
97 * According to spec, unsupported attributes return ERR_ATTRNOTSUPP.
98 */
99 if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) ||
100 (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) ||
101 (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion)))
102 return nfserr_attrnotsupp;
103
104 /*
Trond Myklebusta06b1262009-08-31 15:16:11 -0400105 * Check FATTR4_WORD0_ACL can be supported
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800106 * in current environment or not.
107 */
108 if (bmval[0] & FATTR4_WORD0_ACL) {
109 if (!IS_POSIXACL(dentry->d_inode))
110 return nfserr_attrnotsupp;
111 }
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800112
113 /*
114 * According to spec, read-only attributes return ERR_INVAL.
115 */
116 if (writable) {
117 if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) ||
118 (bmval[2] & ~writable[2]))
119 return nfserr_inval;
120 }
121
122 return nfs_ok;
123}
124
125static __be32
126nfsd4_check_open_attributes(struct svc_rqst *rqstp,
127 struct nfsd4_compound_state *cstate, struct nfsd4_open *open)
128{
129 __be32 status = nfs_ok;
130
131 if (open->op_create == NFS4_OPEN_CREATE) {
132 if (open->op_createmode == NFS4_CREATE_UNCHECKED
133 || open->op_createmode == NFS4_CREATE_GUARDED)
134 status = check_attr_support(rqstp, cstate,
135 open->op_bmval, nfsd_attrmask);
136 else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1)
137 status = check_attr_support(rqstp, cstate,
138 open->op_bmval, nfsd41_ex_attrmask);
139 }
140
141 return status;
142}
143
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800144static int
145is_create_with_attrs(struct nfsd4_open *open)
146{
147 return open->op_create == NFS4_OPEN_CREATE
148 && (open->op_createmode == NFS4_CREATE_UNCHECKED
149 || open->op_createmode == NFS4_CREATE_GUARDED
150 || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1);
151}
152
153/*
154 * if error occurs when setting the acl, just clear the acl bit
155 * in the returned attr bitmap.
156 */
157static void
158do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
159 struct nfs4_acl *acl, u32 *bmval)
160{
161 __be32 status;
162
163 status = nfsd4_set_nfs4_acl(rqstp, fhp, acl);
164 if (status)
165 /*
166 * We should probably fail the whole open at this point,
167 * but we've already created the file, so it's too late;
168 * So this seems the least of evils:
169 */
170 bmval[0] &= ~FATTR4_WORD0_ACL;
171}
172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173static inline void
174fh_dup2(struct svc_fh *dst, struct svc_fh *src)
175{
176 fh_put(dst);
177 dget(src->fh_dentry);
178 if (src->fh_export)
179 cache_get(&src->fh_export->h);
180 *dst = *src;
181}
182
Al Virob37ad282006-10-19 23:28:59 -0700183static __be32
J. Bruce Fieldsdc730e12006-10-17 00:10:13 -0700184do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185{
Al Virob37ad282006-10-19 23:28:59 -0700186 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187
188 if (open->op_truncate &&
189 !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE))
190 return nfserr_inval;
191
J. Bruce Fieldsa0432262011-08-25 10:48:39 -0400192 accmode |= NFSD_MAY_READ_IF_EXEC;
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 if (open->op_share_access & NFS4_SHARE_ACCESS_READ)
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200195 accmode |= NFSD_MAY_READ;
J. Bruce Fields9801d8a2006-10-17 00:10:14 -0700196 if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200197 accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC);
J. Bruce Fields57ecb342009-12-01 19:42:57 -0500198 if (open->op_share_deny & NFS4_SHARE_DENY_READ)
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200199 accmode |= NFSD_MAY_WRITE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
201 status = fh_verify(rqstp, current_fh, S_IFREG, accmode);
202
203 return status;
204}
205
J. Bruce Fieldsaadab6c2011-08-15 16:55:02 -0400206static __be32 nfsd_check_obj_isreg(struct svc_fh *fh)
207{
208 umode_t mode = fh->fh_dentry->d_inode->i_mode;
209
210 if (S_ISREG(mode))
211 return nfs_ok;
212 if (S_ISDIR(mode))
213 return nfserr_isdir;
214 /*
215 * Using err_symlink as our catch-all case may look odd; but
216 * there's no other obvious error for this case in 4.0, and we
217 * happen to know that it will cause the linux v4 client to do
218 * the right thing on attempts to open something other than a
219 * regular file.
220 */
221 return nfserr_symlink;
222}
223
J. Bruce Fieldsbbc9c362013-03-22 18:03:49 -0400224static void nfsd4_set_open_owner_reply_cache(struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh *resfh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225{
J. Bruce Fieldsbbc9c362013-03-22 18:03:49 -0400226 if (nfsd4_has_session(cstate))
227 return;
228 fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh,
229 &resfh->fh_handle);
230}
231
232static __be32
233do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open)
234{
235 struct svc_fh *current_fh = &cstate->current_fh;
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500236 struct svc_fh *resfh;
Neil Brown7007c902012-12-07 15:40:55 -0500237 int accmode;
Al Virob37ad282006-10-19 23:28:59 -0700238 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500240 resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL);
241 if (!resfh)
242 return nfserr_jukebox;
243 fh_init(resfh, NFS4_FHSIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244 open->op_truncate = 0;
245
246 if (open->op_create) {
Benny Halevy79fb54a2009-04-03 08:29:17 +0300247 /* FIXME: check session persistence and pnfs flags.
248 * The nfsv4.1 spec requires the following semantics:
249 *
250 * Persistent | pNFS | Server REQUIRED | Client Allowed
251 * Reply Cache | server | |
252 * -------------+--------+-----------------+--------------------
253 * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1
254 * | | | (SHOULD)
255 * | | and EXCLUSIVE4 | or EXCLUSIVE4
256 * | | | (SHOULD NOT)
257 * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1
258 * yes | no | GUARDED4 | GUARDED4
259 * yes | yes | GUARDED4 | GUARDED4
260 */
261
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 /*
263 * Note: create modes (UNCHECKED,GUARDED...) are the same
Mi Jinlongac6721a2011-04-20 17:06:25 +0800264 * in NFSv4 as in v3 except EXCLUSIVE4_1.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 */
Mi Jinlongac6721a2011-04-20 17:06:25 +0800266 status = do_nfsd_create(rqstp, current_fh, open->op_fname.data,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 open->op_fname.len, &open->op_iattr,
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500268 resfh, open->op_createmode,
Jeff Layton749997e2007-07-31 00:37:51 -0700269 (u32 *)open->op_verf.data,
J. Bruce Fields856121b2011-10-13 11:37:11 -0400270 &open->op_truncate, &open->op_created);
Jeff Layton749997e2007-07-31 00:37:51 -0700271
David Quigley18032ca2013-05-02 13:19:10 -0400272 if (!status && open->op_label.len)
273 nfsd4_security_inode_setsecctx(resfh, &open->op_label, open->op_bmval);
274
J. Bruce Fields99f88722009-02-02 15:12:27 -0500275 /*
276 * Following rfc 3530 14.2.16, use the returned bitmask
277 * to indicate which attributes we used to store the
278 * verifier:
Jeff Layton749997e2007-07-31 00:37:51 -0700279 */
280 if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0)
J. Bruce Fields99f88722009-02-02 15:12:27 -0500281 open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS |
J. Bruce Fields9dc4e6c2012-04-09 18:06:49 -0400282 FATTR4_WORD1_TIME_MODIFY);
J. Bruce Fieldsaf858522006-11-08 17:44:39 -0800283 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 status = nfsd_lookup(rqstp, current_fh,
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500285 open->op_fname.data, open->op_fname.len, resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 fh_unlock(current_fh);
287 }
J. Bruce Fieldsaf858522006-11-08 17:44:39 -0800288 if (status)
289 goto out;
J. Bruce Fields9dc4e6c2012-04-09 18:06:49 -0400290 status = nfsd_check_obj_isreg(resfh);
291 if (status)
292 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800294 if (is_create_with_attrs(open) && open->op_acl != NULL)
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500295 do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval);
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800296
J. Bruce Fieldsbbc9c362013-03-22 18:03:49 -0400297 nfsd4_set_open_owner_reply_cache(cstate, open, resfh);
Neil Brown7007c902012-12-07 15:40:55 -0500298 accmode = NFSD_MAY_NOP;
J. Bruce Fields89f6c332013-06-19 15:47:37 -0400299 if (open->op_created ||
300 open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR)
Neil Brown7007c902012-12-07 15:40:55 -0500301 accmode |= NFSD_MAY_OWNER_OVERRIDE;
302 status = do_open_permission(rqstp, resfh, open, accmode);
J. Bruce Fields41fd1e42012-01-27 16:26:02 -0500303 set_change_info(&open->op_cinfo, current_fh);
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500304 fh_dup2(current_fh, resfh);
J. Bruce Fieldsaf858522006-11-08 17:44:39 -0800305out:
J. Bruce Fields59deeb92012-01-27 16:49:55 -0500306 fh_put(resfh);
307 kfree(resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 return status;
309}
310
Al Virob37ad282006-10-19 23:28:59 -0700311static __be32
J. Bruce Fieldsbbc9c362013-03-22 18:03:49 -0400312do_open_fhandle(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313{
J. Bruce Fieldsbbc9c362013-03-22 18:03:49 -0400314 struct svc_fh *current_fh = &cstate->current_fh;
Al Virob37ad282006-10-19 23:28:59 -0700315 __be32 status;
J. Bruce Fields9f415eb2013-05-03 16:09:09 -0400316 int accmode = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 /* We don't know the target directory, and therefore can not
319 * set the change info
320 */
321
322 memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info));
323
J. Bruce Fieldsbbc9c362013-03-22 18:03:49 -0400324 nfsd4_set_open_owner_reply_cache(cstate, open, current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325
326 open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) &&
327 (open->op_iattr.ia_size == 0);
J. Bruce Fields9f415eb2013-05-03 16:09:09 -0400328 /*
329 * In the delegation case, the client is telling us about an
330 * open that it *already* performed locally, some time ago. We
331 * should let it succeed now if possible.
332 *
333 * In the case of a CLAIM_FH open, on the other hand, the client
334 * may be counting on us to enforce permissions (the Linux 4.1
335 * client uses this for normal opens, for example).
336 */
337 if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEG_CUR_FH)
338 accmode = NFSD_MAY_OWNER_OVERRIDE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
J. Bruce Fields9f415eb2013-05-03 16:09:09 -0400340 status = do_open_permission(rqstp, current_fh, open, accmode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
342 return status;
343}
344
Andy Adamson60adfc52009-04-03 08:28:50 +0300345static void
346copy_clientid(clientid_t *clid, struct nfsd4_session *session)
347{
348 struct nfsd4_sessionid *sid =
349 (struct nfsd4_sessionid *)session->se_sessionid.data;
350
351 clid->cl_boot = sid->clientid.cl_boot;
352 clid->cl_id = sid->clientid.cl_id;
353}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354
J.Bruce Fields71911552006-12-13 00:35:29 -0800355static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800356nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -0800357 struct nfsd4_open *open)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358{
Al Virob37ad282006-10-19 23:28:59 -0700359 __be32 status;
Andy Adamson66689582009-04-03 08:28:45 +0300360 struct nfsd4_compoundres *resp;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300361 struct net *net = SVC_NET(rqstp);
362 struct nfsd_net *nn = net_generic(net, nfsd_net_id);
Andy Adamson66689582009-04-03 08:28:45 +0300363
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400364 dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 (int)open->op_fname.len, open->op_fname.data,
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400366 open->op_openowner);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 /* This check required by spec. */
369 if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL)
370 return nfserr_inval;
371
J. Bruce Fields856121b2011-10-13 11:37:11 -0400372 open->op_created = 0;
Mi Jinlongab1350b2011-07-14 15:06:26 +0800373 /*
374 * RFC5661 18.51.3
375 * Before RECLAIM_COMPLETE done, server should deny new lock
376 */
377 if (nfsd4_has_session(cstate) &&
Jeff Laytona52d7262012-03-21 09:52:02 -0400378 !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE,
379 &cstate->session->se_client->cl_flags) &&
Mi Jinlongab1350b2011-07-14 15:06:26 +0800380 open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
381 return nfserr_grace;
382
Andy Adamson60adfc52009-04-03 08:28:50 +0300383 if (nfsd4_has_session(cstate))
384 copy_clientid(&open->op_clientid, cstate->session);
385
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 nfs4_lock_state();
387
388 /* check seqid for replay. set nfs4_owner */
Andy Adamson66689582009-04-03 08:28:45 +0300389 resp = rqstp->rq_resp;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300390 status = nfsd4_process_open1(&resp->cstate, open, nn);
Al Viroa90b0612006-10-19 23:29:03 -0700391 if (status == nfserr_replay_me) {
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400392 struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800393 fh_put(&cstate->current_fh);
J. Bruce Fieldsa4773c082009-02-02 17:23:10 -0500394 fh_copy_shallow(&cstate->current_fh.fh_handle,
395 &rp->rp_openfh);
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200396 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 if (status)
398 dprintk("nfsd4_open: replay failed"
399 " restoring previous filehandle\n");
400 else
Al Viroa90b0612006-10-19 23:29:03 -0700401 status = nfserr_replay_me;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 }
403 if (status)
404 goto out;
J. Bruce Fields9d313b12013-02-28 12:51:49 -0800405 if (open->op_xdr_error) {
406 status = open->op_xdr_error;
407 goto out;
408 }
J. Bruce Fieldsfb553c02006-01-18 17:43:36 -0800409
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800410 status = nfsd4_check_open_attributes(rqstp, cstate, open);
411 if (status)
412 goto out;
413
J. Bruce Fieldsfb553c02006-01-18 17:43:36 -0800414 /* Openowner is now set, so sequence id will get bumped. Now we need
415 * these checks before we do any creates: */
J. Bruce Fieldscbd0d512006-02-07 12:58:32 -0800416 status = nfserr_grace;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300417 if (locks_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
J. Bruce Fieldscbd0d512006-02-07 12:58:32 -0800418 goto out;
419 status = nfserr_no_grace;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300420 if (!locks_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
J. Bruce Fieldscbd0d512006-02-07 12:58:32 -0800421 goto out;
J. Bruce Fieldsfb553c02006-01-18 17:43:36 -0800422
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 switch (open->op_claim_type) {
NeilBrown0dd3c192005-06-23 22:02:56 -0700424 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 case NFS4_OPEN_CLAIM_NULL:
J. Bruce Fieldsbbc9c362013-03-22 18:03:49 -0400426 status = do_open_lookup(rqstp, cstate, open);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 if (status)
428 goto out;
429 break;
430 case NFS4_OPEN_CLAIM_PREVIOUS:
J. Bruce Fieldsdad1c062011-09-12 12:24:13 -0400431 open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
Stanislav Kinsbursky3320fef192012-11-14 18:22:07 +0300432 status = nfs4_check_open_reclaim(&open->op_clientid,
433 cstate->minorversion,
434 nn);
Mi Jinlong0cf99b92011-11-23 10:48:40 +0800435 if (status)
436 goto out;
J. Bruce Fields8b289b22011-10-19 11:52:12 -0400437 case NFS4_OPEN_CLAIM_FH:
438 case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
J. Bruce Fieldsbbc9c362013-03-22 18:03:49 -0400439 status = do_open_fhandle(rqstp, cstate, open);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 if (status)
441 goto out;
442 break;
J. Bruce Fields8b289b22011-10-19 11:52:12 -0400443 case NFS4_OPEN_CLAIM_DELEG_PREV_FH:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 case NFS4_OPEN_CLAIM_DELEGATE_PREV:
J. Bruce Fieldsdad1c062011-09-12 12:24:13 -0400445 open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
J. Bruce Fields2fdada02007-07-27 16:10:37 -0400446 dprintk("NFSD: unsupported OPEN claim type %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447 open->op_claim_type);
448 status = nfserr_notsupp;
449 goto out;
450 default:
J. Bruce Fields2fdada02007-07-27 16:10:37 -0400451 dprintk("NFSD: Invalid OPEN claim type %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 open->op_claim_type);
453 status = nfserr_inval;
454 goto out;
455 }
456 /*
457 * nfsd4_process_open2() does the actual opening of the file. If
458 * successful, it (1) truncates the file if open->op_truncate was
459 * set, (2) sets open->op_stateid, (3) sets open->op_delegation.
460 */
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800461 status = nfsd4_process_open2(rqstp, &cstate->current_fh, open);
J. Bruce Fields856121b2011-10-13 11:37:11 -0400462 WARN_ON(status && open->op_created);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463out:
J. Bruce Fieldsd29b20c2011-10-13 15:12:59 -0400464 nfsd4_cleanup_open_state(open, status);
J. Bruce Fields3d74e6a2013-03-22 17:44:19 -0400465 if (open->op_openowner && !nfsd4_has_session(cstate))
J. Bruce Fieldsfe0750e2011-07-30 23:33:59 -0400466 cstate->replay_owner = &open->op_openowner->oo_owner;
J. Bruce Fields9411b1d2013-04-01 16:37:12 -0400467 nfsd4_bump_seqid(cstate, status);
468 if (!cstate->replay_owner)
J. Bruce Fields5ec094c2011-08-30 17:02:48 -0400469 nfs4_unlock_state();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470 return status;
471}
472
473/*
J. Bruce Fields9d313b12013-02-28 12:51:49 -0800474 * OPEN is the only seqid-mutating operation whose decoding can fail
475 * with a seqid-mutating error (specifically, decoding of user names in
476 * the attributes). Therefore we have to do some processing to look up
477 * the stateowner so that we can bump the seqid.
478 */
479static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op)
480{
481 struct nfsd4_open *open = (struct nfsd4_open *)&op->u;
482
483 if (!seqid_mutating_err(ntohl(op->status)))
484 return op->status;
485 if (nfsd4_has_session(cstate))
486 return op->status;
487 open->op_xdr_error = op->status;
488 return nfsd4_open(rqstp, cstate, open);
489}
490
491/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 * filehandle-manipulating ops.
493 */
J.Bruce Fields71911552006-12-13 00:35:29 -0800494static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800495nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
496 struct svc_fh **getfh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800498 if (!cstate->current_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499 return nfserr_nofilehandle;
500
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800501 *getfh = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502 return nfs_ok;
503}
504
J.Bruce Fields71911552006-12-13 00:35:29 -0800505static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800506nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
507 struct nfsd4_putfh *putfh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800509 fh_put(&cstate->current_fh);
510 cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen;
511 memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval,
512 putfh->pf_fhlen);
J. Bruce Fields68d93182011-04-08 17:00:50 -0400513 return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514}
515
J.Bruce Fields71911552006-12-13 00:35:29 -0800516static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800517nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
518 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519{
Al Virob37ad282006-10-19 23:28:59 -0700520 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800522 fh_put(&cstate->current_fh);
J. Bruce Fieldsdf547ef2007-07-17 04:04:43 -0700523 status = exp_pseudoroot(rqstp, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 return status;
525}
526
J.Bruce Fields71911552006-12-13 00:35:29 -0800527static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800528nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
529 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800531 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532 return nfserr_restorefh;
533
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800534 fh_dup2(&cstate->current_fh, &cstate->save_fh);
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +0100535 if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) {
536 memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t));
537 SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG);
538 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539 return nfs_ok;
540}
541
J.Bruce Fields71911552006-12-13 00:35:29 -0800542static __be32
J.Bruce Fieldsb5914802006-12-13 00:35:38 -0800543nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
544 void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800546 if (!cstate->current_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547 return nfserr_nofilehandle;
548
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800549 fh_dup2(&cstate->save_fh, &cstate->current_fh);
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +0100550 if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) {
551 memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t));
552 SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG);
553 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554 return nfs_ok;
555}
556
557/*
558 * misc nfsv4 ops
559 */
J.Bruce Fields71911552006-12-13 00:35:29 -0800560static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800561nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
562 struct nfsd4_access *access)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563{
564 if (access->ac_req_access & ~NFS3_ACCESS_FULL)
565 return nfserr_inval;
566
567 access->ac_resp_access = access->ac_req_access;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800568 return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access,
569 &access->ac_supported);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570}
571
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300572static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net)
Chuck Leverab4684d2012-03-02 17:13:50 -0500573{
574 __be32 verf[2];
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300575 struct nfsd_net *nn = net_generic(net, nfsd_net_id);
Chuck Leverab4684d2012-03-02 17:13:50 -0500576
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300577 verf[0] = (__be32)nn->nfssvc_boot.tv_sec;
578 verf[1] = (__be32)nn->nfssvc_boot.tv_usec;
Chuck Leverab4684d2012-03-02 17:13:50 -0500579 memcpy(verifier->data, verf, sizeof(verifier->data));
580}
581
J.Bruce Fields71911552006-12-13 00:35:29 -0800582static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800583nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
584 struct nfsd4_commit *commit)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585{
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +0300586 gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp));
J. Bruce Fields75c096f2011-08-15 18:39:32 -0400587 return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset,
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800588 commit->co_count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589}
590
Al Virob37ad282006-10-19 23:28:59 -0700591static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800592nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
593 struct nfsd4_create *create)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594{
595 struct svc_fh resfh;
Al Virob37ad282006-10-19 23:28:59 -0700596 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 dev_t rdev;
598
599 fh_init(&resfh, NFS4_FHSIZE);
600
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200601 status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR,
602 NFSD_MAY_CREATE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603 if (status)
604 return status;
605
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800606 status = check_attr_support(rqstp, cstate, create->cr_bmval,
607 nfsd_attrmask);
608 if (status)
609 return status;
610
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611 switch (create->cr_type) {
612 case NF4LNK:
613 /* ugh! we have to null-terminate the linktext, or
614 * vfs_symlink() will choke. it is always safe to
615 * null-terminate by brute force, since at worst we
616 * will overwrite the first byte of the create namelen
617 * in the XDR buffer, which has already been extracted
618 * during XDR decode.
619 */
620 create->cr_linkname[create->cr_linklen] = 0;
621
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800622 status = nfsd_symlink(rqstp, &cstate->current_fh,
623 create->cr_name, create->cr_namelen,
624 create->cr_linkname, create->cr_linklen,
625 &resfh, &create->cr_iattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626 break;
627
628 case NF4BLK:
629 rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
630 if (MAJOR(rdev) != create->cr_specdata1 ||
631 MINOR(rdev) != create->cr_specdata2)
632 return nfserr_inval;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800633 status = nfsd_create(rqstp, &cstate->current_fh,
634 create->cr_name, create->cr_namelen,
635 &create->cr_iattr, S_IFBLK, rdev, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636 break;
637
638 case NF4CHR:
639 rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
640 if (MAJOR(rdev) != create->cr_specdata1 ||
641 MINOR(rdev) != create->cr_specdata2)
642 return nfserr_inval;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800643 status = nfsd_create(rqstp, &cstate->current_fh,
644 create->cr_name, create->cr_namelen,
645 &create->cr_iattr,S_IFCHR, rdev, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646 break;
647
648 case NF4SOCK:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800649 status = nfsd_create(rqstp, &cstate->current_fh,
650 create->cr_name, create->cr_namelen,
651 &create->cr_iattr, S_IFSOCK, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652 break;
653
654 case NF4FIFO:
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800655 status = nfsd_create(rqstp, &cstate->current_fh,
656 create->cr_name, create->cr_namelen,
657 &create->cr_iattr, S_IFIFO, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658 break;
659
660 case NF4DIR:
661 create->cr_iattr.ia_valid &= ~ATTR_SIZE;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800662 status = nfsd_create(rqstp, &cstate->current_fh,
663 create->cr_name, create->cr_namelen,
664 &create->cr_iattr, S_IFDIR, 0, &resfh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 break;
666
667 default:
668 status = nfserr_badtype;
669 }
670
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800671 if (status)
672 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673
David Quigley18032ca2013-05-02 13:19:10 -0400674 if (create->cr_label.len)
675 nfsd4_security_inode_setsecctx(&resfh, &create->cr_label, create->cr_bmval);
676
Yu Zhiguo9208faf2009-07-06 17:24:16 +0800677 if (create->cr_acl != NULL)
678 do_set_nfs4_acl(rqstp, &resfh, create->cr_acl,
679 create->cr_bmval);
680
681 fh_unlock(&cstate->current_fh);
682 set_change_info(&create->cr_cinfo, &cstate->current_fh);
683 fh_dup2(&cstate->current_fh, &resfh);
684out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685 fh_put(&resfh);
686 return status;
687}
688
J.Bruce Fields71911552006-12-13 00:35:29 -0800689static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800690nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
691 struct nfsd4_getattr *getattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692{
Al Virob37ad282006-10-19 23:28:59 -0700693 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694
Miklos Szeredi8837abc2008-06-16 13:20:29 +0200695 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696 if (status)
697 return status;
698
699 if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
700 return nfserr_inval;
701
Andy Adamson7e705702009-04-03 08:29:11 +0300702 getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
703 getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
704 getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800706 getattr->ga_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707 return nfs_ok;
708}
709
J.Bruce Fields71911552006-12-13 00:35:29 -0800710static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800711nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
712 struct nfsd4_link *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713{
Al Virob37ad282006-10-19 23:28:59 -0700714 __be32 status = nfserr_nofilehandle;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800716 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717 return status;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800718 status = nfsd_link(rqstp, &cstate->current_fh,
719 link->li_name, link->li_namelen, &cstate->save_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720 if (!status)
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800721 set_change_info(&link->li_cinfo, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722 return status;
723}
724
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500725static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726{
727 struct svc_fh tmp_fh;
Al Virob37ad282006-10-19 23:28:59 -0700728 __be32 ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729
730 fh_init(&tmp_fh, NFS4_FHSIZE);
J. Bruce Fieldsdf547ef2007-07-17 04:04:43 -0700731 ret = exp_pseudoroot(rqstp, &tmp_fh);
732 if (ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733 return ret;
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500734 if (tmp_fh.fh_dentry == fh->fh_dentry) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735 fh_put(&tmp_fh);
736 return nfserr_noent;
737 }
738 fh_put(&tmp_fh);
J. Bruce Fields0ff7ab42010-12-16 10:06:27 -0500739 return nfsd_lookup(rqstp, fh, "..", 2, fh);
740}
741
742static __be32
743nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
744 void *arg)
745{
746 return nfsd4_do_lookupp(rqstp, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747}
748
J.Bruce Fields71911552006-12-13 00:35:29 -0800749static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800750nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
751 struct nfsd4_lookup *lookup)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752{
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800753 return nfsd_lookup(rqstp, &cstate->current_fh,
754 lookup->lo_name, lookup->lo_len,
755 &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756}
757
J.Bruce Fields71911552006-12-13 00:35:29 -0800758static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800759nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
760 struct nfsd4_read *read)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761{
Al Virob37ad282006-10-19 23:28:59 -0700762 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
764 /* no need to check permission - this will be done in nfsd_read() */
765
NeilBrown7e06b7f2005-06-23 22:03:13 -0700766 read->rd_filp = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767 if (read->rd_offset >= OFFSET_MAX)
768 return nfserr_inval;
769
J. Bruce Fields9b3234b2012-12-04 18:03:46 -0500770 /*
771 * If we do a zero copy read, then a client will see read data
772 * that reflects the state of the file *after* performing the
773 * following compound.
774 *
775 * To ensure proper ordering, we therefore turn off zero copy if
776 * the client wants us to do more in this compound:
777 */
778 if (!nfsd4_last_compound_op(rqstp))
779 rqstp->rq_splice_ok = false;
780
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781 nfs4_lock_state();
782 /* check stateid */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400783 if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
784 cstate, &read->rd_stateid,
Benny Halevydd453df2009-04-03 08:28:41 +0300785 RD_STATE, &read->rd_filp))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786 dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
787 goto out;
788 }
NeilBrown7e06b7f2005-06-23 22:03:13 -0700789 if (read->rd_filp)
790 get_file(read->rd_filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791 status = nfs_ok;
792out:
793 nfs4_unlock_state();
794 read->rd_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800795 read->rd_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 return status;
797}
798
J.Bruce Fields71911552006-12-13 00:35:29 -0800799static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800800nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
801 struct nfsd4_readdir *readdir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802{
803 u64 cookie = readdir->rd_cookie;
804 static const nfs4_verifier zeroverf;
805
806 /* no need to check permission - this will be done in nfsd_readdir() */
807
808 if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
809 return nfserr_inval;
810
Andy Adamson7e705702009-04-03 08:29:11 +0300811 readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
812 readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
813 readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814
Bernd Schubert832023b2011-08-08 17:38:08 +0200815 if ((cookie == 1) || (cookie == 2) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816 (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE)))
817 return nfserr_bad_cookie;
818
819 readdir->rd_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800820 readdir->rd_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821 return nfs_ok;
822}
823
J.Bruce Fields71911552006-12-13 00:35:29 -0800824static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800825nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
826 struct nfsd4_readlink *readlink)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827{
828 readlink->rl_rqstp = rqstp;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800829 readlink->rl_fhp = &cstate->current_fh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830 return nfs_ok;
831}
832
J.Bruce Fields71911552006-12-13 00:35:29 -0800833static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800834nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
835 struct nfsd4_remove *remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836{
Al Virob37ad282006-10-19 23:28:59 -0700837 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400839 if (locks_in_grace(SVC_NET(rqstp)))
NeilBrownc815afc2005-06-23 22:03:00 -0700840 return nfserr_grace;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800841 status = nfsd_unlink(rqstp, &cstate->current_fh, 0,
842 remove->rm_name, remove->rm_namelen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843 if (!status) {
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800844 fh_unlock(&cstate->current_fh);
845 set_change_info(&remove->rm_cinfo, &cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846 }
847 return status;
848}
849
J.Bruce Fields71911552006-12-13 00:35:29 -0800850static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800851nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
852 struct nfsd4_rename *rename)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853{
Al Virob37ad282006-10-19 23:28:59 -0700854 __be32 status = nfserr_nofilehandle;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800856 if (!cstate->save_fh.fh_dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857 return status;
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400858 if (locks_in_grace(SVC_NET(rqstp)) &&
859 !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK))
NeilBrownc815afc2005-06-23 22:03:00 -0700860 return nfserr_grace;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800861 status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname,
862 rename->rn_snamelen, &cstate->current_fh,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863 rename->rn_tname, rename->rn_tnamelen);
J. Bruce Fields2a6cf942013-04-30 15:28:51 -0400864 if (status)
865 return status;
866 set_change_info(&rename->rn_sinfo, &cstate->current_fh);
867 set_change_info(&rename->rn_tinfo, &cstate->save_fh);
868 return nfs_ok;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869}
870
J.Bruce Fields71911552006-12-13 00:35:29 -0800871static __be32
Andy Adamsondcb488a32007-07-17 04:04:51 -0700872nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
873 struct nfsd4_secinfo *secinfo)
874{
875 struct svc_fh resfh;
876 struct svc_export *exp;
877 struct dentry *dentry;
878 __be32 err;
879
880 fh_init(&resfh, NFS4_FHSIZE);
J. Bruce Fields29a78a32011-04-09 11:28:53 -0400881 err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC);
882 if (err)
883 return err;
Andy Adamsondcb488a32007-07-17 04:04:51 -0700884 err = nfsd_lookup_dentry(rqstp, &cstate->current_fh,
885 secinfo->si_name, secinfo->si_namelen,
886 &exp, &dentry);
887 if (err)
888 return err;
889 if (dentry->d_inode == NULL) {
890 exp_put(exp);
891 err = nfserr_noent;
892 } else
893 secinfo->si_exp = exp;
894 dput(dentry);
J. Bruce Fields56560b92010-12-16 09:57:15 -0500895 if (cstate->minorversion)
896 /* See rfc 5661 section 2.6.3.1.1.8 */
897 fh_put(&cstate->current_fh);
Andy Adamsondcb488a32007-07-17 04:04:51 -0700898 return err;
899}
900
901static __be32
J. Bruce Fields04f4ad12010-12-16 09:51:13 -0500902nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
903 struct nfsd4_secinfo_no_name *sin)
904{
905 __be32 err;
906
907 switch (sin->sin_style) {
908 case NFS4_SECINFO_STYLE4_CURRENT_FH:
909 break;
910 case NFS4_SECINFO_STYLE4_PARENT:
911 err = nfsd4_do_lookupp(rqstp, &cstate->current_fh);
912 if (err)
913 return err;
914 break;
915 default:
916 return nfserr_inval;
917 }
918 exp_get(cstate->current_fh.fh_export);
919 sin->sin_exp = cstate->current_fh.fh_export;
920 fh_put(&cstate->current_fh);
921 return nfs_ok;
922}
923
924static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800925nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
926 struct nfsd4_setattr *setattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927{
Al Virob37ad282006-10-19 23:28:59 -0700928 __be32 status = nfs_ok;
Al Viro96f6f982012-04-12 23:47:00 -0400929 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931 if (setattr->sa_iattr.ia_valid & ATTR_SIZE) {
932 nfs4_lock_state();
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400933 status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate,
J. Bruce Fields6150ef02009-02-21 13:36:16 -0800934 &setattr->sa_stateid, WR_STATE, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935 nfs4_unlock_state();
J. Bruce Fields375c5542006-01-18 17:43:33 -0800936 if (status) {
Greg Banks3e3b4802006-10-02 02:17:41 -0700937 dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n");
J. Bruce Fields375c5542006-01-18 17:43:33 -0800938 return status;
939 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940 }
Al Viro96f6f982012-04-12 23:47:00 -0400941 err = fh_want_write(&cstate->current_fh);
942 if (err)
943 return nfserrno(err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 status = nfs_ok;
Yu Zhiguo3c8e0312009-05-16 16:22:31 +0800945
946 status = check_attr_support(rqstp, cstate, setattr->sa_bmval,
947 nfsd_attrmask);
948 if (status)
949 goto out;
950
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951 if (setattr->sa_acl != NULL)
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800952 status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh,
953 setattr->sa_acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954 if (status)
Dave Hansen18f335a2008-02-15 14:37:38 -0800955 goto out;
David Quigley18032ca2013-05-02 13:19:10 -0400956 if (setattr->sa_label.len)
957 status = nfsd4_set_nfs4_label(rqstp, &cstate->current_fh,
958 &setattr->sa_label);
959 if (status)
960 goto out;
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800961 status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962 0, (time_t)0);
Dave Hansen18f335a2008-02-15 14:37:38 -0800963out:
Al Virobad0dcf2011-11-23 12:03:18 -0500964 fh_drop_write(&cstate->current_fh);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965 return status;
966}
967
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500968static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write)
969{
970 int i = 1;
971 int buflen = write->wr_buflen;
972
973 vec[0].iov_base = write->wr_head.iov_base;
974 vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len);
975 buflen -= vec[0].iov_len;
976
977 while (buflen) {
978 vec[i].iov_base = page_address(write->wr_pagelist[i - 1]);
979 vec[i].iov_len = min_t(int, PAGE_SIZE, buflen);
980 buflen -= vec[i].iov_len;
981 i++;
982 }
983 return i;
984}
985
J.Bruce Fields71911552006-12-13 00:35:29 -0800986static __be32
J.Bruce Fieldsca364312006-12-13 00:35:27 -0800987nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
988 struct nfsd4_write *write)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989{
990 stateid_t *stateid = &write->wr_stateid;
991 struct file *filp = NULL;
Al Virob37ad282006-10-19 23:28:59 -0700992 __be32 status = nfs_ok;
David Shaw31dec252009-03-05 20:16:14 -0500993 unsigned long cnt;
J. Bruce Fieldsffe11372012-11-15 14:52:19 -0500994 int nvecs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995
996 /* no need to check permission - this will be done in nfsd_write() */
997
998 if (write->wr_offset >= OFFSET_MAX)
999 return nfserr_inval;
1000
1001 nfs4_lock_state();
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +04001002 status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
1003 cstate, stateid, WR_STATE, &filp);
J. Bruce Fields375c5542006-01-18 17:43:33 -08001004 if (status) {
fanchaotingb0220322013-04-01 21:07:22 +08001005 nfs4_unlock_state();
J. Bruce Fields375c5542006-01-18 17:43:33 -08001006 dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
1007 return status;
1008 }
fanchaotingb0220322013-04-01 21:07:22 +08001009 if (filp)
1010 get_file(filp);
1011 nfs4_unlock_state();
J. Bruce Fields375c5542006-01-18 17:43:33 -08001012
David Shaw31dec252009-03-05 20:16:14 -05001013 cnt = write->wr_buflen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014 write->wr_how_written = write->wr_stable_how;
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +03001015 gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016
J. Bruce Fieldsffe11372012-11-15 14:52:19 -05001017 nvecs = fill_in_write_vector(rqstp->rq_vec, write);
1018 WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec));
1019
J.Bruce Fieldsca364312006-12-13 00:35:27 -08001020 status = nfsd_write(rqstp, &cstate->current_fh, filp,
J. Bruce Fieldsffe11372012-11-15 14:52:19 -05001021 write->wr_offset, rqstp->rq_vec, nvecs,
David Shaw31dec252009-03-05 20:16:14 -05001022 &cnt, &write->wr_how_written);
NeilBrown7e06b7f2005-06-23 22:03:13 -07001023 if (filp)
1024 fput(filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025
David Shaw31dec252009-03-05 20:16:14 -05001026 write->wr_bytes_written = cnt;
1027
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029}
1030
1031/* This routine never returns NFS_OK! If there are no other errors, it
1032 * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the
1033 * attributes matched. VERIFY is implemented by mapping NFSERR_SAME
1034 * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK.
1035 */
Al Virob37ad282006-10-19 23:28:59 -07001036static __be32
J.Bruce Fieldsc954e2a2006-12-13 00:35:31 -08001037_nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
J.Bruce Fieldsca364312006-12-13 00:35:27 -08001038 struct nfsd4_verify *verify)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039{
Al Viro2ebbc012006-10-19 23:28:58 -07001040 __be32 *buf, *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041 int count;
Al Virob37ad282006-10-19 23:28:59 -07001042 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043
Miklos Szeredi8837abc2008-06-16 13:20:29 +02001044 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045 if (status)
1046 return status;
1047
Yu Zhiguo3c8e0312009-05-16 16:22:31 +08001048 status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL);
1049 if (status)
1050 return status;
1051
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052 if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR)
1053 || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1))
1054 return nfserr_inval;
1055 if (verify->ve_attrlen & 3)
1056 return nfserr_inval;
1057
1058 /* count in words:
1059 * bitmap_len(1) + bitmap(2) + attr_len(1) = 4
1060 */
1061 count = 4 + (verify->ve_attrlen >> 2);
1062 buf = kmalloc(count << 2, GFP_KERNEL);
1063 if (!buf)
J. Bruce Fields3e772462011-08-10 19:07:33 -04001064 return nfserr_jukebox;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065
J. Bruce Fields84822d02012-12-14 17:57:50 -05001066 p = buf;
J.Bruce Fieldsca364312006-12-13 00:35:27 -08001067 status = nfsd4_encode_fattr(&cstate->current_fh,
1068 cstate->current_fh.fh_export,
J. Bruce Fields84822d02012-12-14 17:57:50 -05001069 cstate->current_fh.fh_dentry, &p,
1070 count, verify->ve_bmval,
Frank Filz406a7ea2007-11-27 11:34:05 -08001071 rqstp, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072
1073 /* this means that nfsd4_encode_fattr() ran out of space */
J. Bruce Fields84822d02012-12-14 17:57:50 -05001074 if (status == nfserr_resource)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075 status = nfserr_not_same;
1076 if (status)
1077 goto out_kfree;
1078
Benny Halevy95ec28c2009-04-03 08:29:08 +03001079 /* skip bitmap */
1080 p = buf + 1 + ntohl(buf[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 status = nfserr_not_same;
1082 if (ntohl(*p++) != verify->ve_attrlen)
1083 goto out_kfree;
1084 if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen))
1085 status = nfserr_same;
1086
1087out_kfree:
1088 kfree(buf);
1089 return status;
1090}
1091
J.Bruce Fieldsc954e2a2006-12-13 00:35:31 -08001092static __be32
1093nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
1094 struct nfsd4_verify *verify)
1095{
1096 __be32 status;
1097
1098 status = _nfsd4_verify(rqstp, cstate, verify);
1099 return status == nfserr_not_same ? nfs_ok : status;
1100}
1101
1102static __be32
1103nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
1104 struct nfsd4_verify *verify)
1105{
1106 __be32 status;
1107
1108 status = _nfsd4_verify(rqstp, cstate, verify);
1109 return status == nfserr_same ? nfs_ok : status;
1110}
1111
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112/*
1113 * NULL call.
1114 */
Al Viro7111c662006-10-19 23:28:45 -07001115static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
1117{
1118 return nfs_ok;
1119}
1120
Shankar Anande2b20952006-07-10 04:45:44 -07001121static inline void nfsd4_increment_op_stats(u32 opnum)
1122{
1123 if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP)
1124 nfsdstats.nfs4_opcount[opnum]++;
1125}
1126
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001127typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
1128 void *);
Mi Jinlong58e7b332011-08-28 18:18:56 +08001129typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op);
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001130typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *);
1131typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *);
Mi Jinlong58e7b332011-08-28 18:18:56 +08001132
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001133enum nfsd4_op_flags {
1134 ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */
Mi Jinlong5ece3ca2011-02-18 09:08:31 +08001135 ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */
1136 ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */
J. Bruce Fields68d93182011-04-08 17:00:50 -04001137 /* For rfc 5661 section 2.6.3.1.1: */
1138 OP_HANDLES_WRONGSEC = 1 << 3,
1139 OP_IS_PUTFH_LIKE = 1 << 4,
J. Bruce Fields10910062011-01-24 12:11:02 -05001140 /*
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001141 * These are the ops whose result size we estimate before
1142 * encoding, to avoid performing an op then not being able to
1143 * respond or cache a response. This includes writes and setattrs
1144 * as well as the operations usually called "nonidempotent":
1145 */
1146 OP_MODIFIES_SOMETHING = 1 << 5,
1147 /*
1148 * Cache compounds containing these ops in the xid-based drc:
J. Bruce Fields10910062011-01-24 12:11:02 -05001149 * We use the DRC for compounds containing non-idempotent
1150 * operations, *except* those that are 4.1-specific (since
1151 * sessions provide their own EOS), and except for stateful
1152 * operations other than setclientid and setclientid_confirm
1153 * (since sequence numbers provide EOS for open, lock, etc in
1154 * the v4.0 case).
1155 */
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001156 OP_CACHEME = 1 << 6,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001157 /*
1158 * These are ops which clear current state id.
1159 */
1160 OP_CLEAR_STATEID = 1 << 7,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001161};
1162
1163struct nfsd4_operation {
1164 nfsd4op_func op_func;
1165 u32 op_flags;
1166 char *op_name;
Mi Jinlong58e7b332011-08-28 18:18:56 +08001167 /* Try to get response size before operation */
1168 nfsd4op_rsize op_rsize_bop;
Bryan Schumaker24ff99c2012-08-14 15:55:08 -04001169 stateid_getter op_get_currentstateid;
1170 stateid_setter op_set_currentstateid;
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001171};
1172
1173static struct nfsd4_operation nfsd4_ops[];
1174
Trond Myklebust8f199b82012-03-20 15:11:17 -04001175#ifdef NFSD_DEBUG
Adrian Bunkf1c7f792008-08-08 19:26:42 +03001176static const char *nfsd4_op_name(unsigned opnum);
Trond Myklebust8f199b82012-03-20 15:11:17 -04001177#endif
Benny Halevyb001a1b2008-07-02 11:15:03 +03001178
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179/*
J. Bruce Fields57716352010-04-21 12:27:19 -04001180 * Enforce NFSv4.1 COMPOUND ordering rules:
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001181 *
J. Bruce Fields57716352010-04-21 12:27:19 -04001182 * Also note, enforced elsewhere:
1183 * - SEQUENCE other than as first op results in
1184 * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().)
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001185 * - BIND_CONN_TO_SESSION must be the only op in its compound.
1186 * (Enforced in nfsd4_bind_conn_to_session().)
J. Bruce Fields57716352010-04-21 12:27:19 -04001187 * - DESTROY_SESSION must be the final operation in a compound, if
1188 * sessionid's in SEQUENCE and DESTROY_SESSION are the same.
1189 * (Enforced in nfsd4_destroy_session().)
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001190 */
J. Bruce Fields57716352010-04-21 12:27:19 -04001191static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args)
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001192{
J. Bruce Fields57716352010-04-21 12:27:19 -04001193 struct nfsd4_op *op = &args->ops[0];
1194
1195 /* These ordering requirements don't apply to NFSv4.0: */
1196 if (args->minorversion == 0)
1197 return nfs_ok;
1198 /* This is weird, but OK, not our problem: */
1199 if (args->opcnt == 0)
1200 return nfs_ok;
1201 if (op->status == nfserr_op_illegal)
1202 return nfs_ok;
1203 if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP))
1204 return nfserr_op_not_in_session;
1205 if (op->opnum == OP_SEQUENCE)
1206 return nfs_ok;
1207 if (args->opcnt != 1)
1208 return nfserr_not_only_op;
1209 return nfs_ok;
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001210}
1211
J. Bruce Fields22b03212011-04-09 11:23:24 -04001212static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op)
1213{
1214 return &nfsd4_ops[op->opnum];
1215}
1216
J. Bruce Fields10910062011-01-24 12:11:02 -05001217bool nfsd4_cache_this_op(struct nfsd4_op *op)
1218{
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001219 return OPDESC(op)->op_flags & OP_CACHEME;
J. Bruce Fields10910062011-01-24 12:11:02 -05001220}
1221
J. Bruce Fields68d93182011-04-08 17:00:50 -04001222static bool need_wrongsec_check(struct svc_rqst *rqstp)
1223{
1224 struct nfsd4_compoundres *resp = rqstp->rq_resp;
1225 struct nfsd4_compoundargs *argp = rqstp->rq_argp;
1226 struct nfsd4_op *this = &argp->ops[resp->opcnt - 1];
1227 struct nfsd4_op *next = &argp->ops[resp->opcnt];
1228 struct nfsd4_operation *thisd;
1229 struct nfsd4_operation *nextd;
1230
1231 thisd = OPDESC(this);
1232 /*
1233 * Most ops check wronsec on our own; only the putfh-like ops
1234 * have special rules.
1235 */
1236 if (!(thisd->op_flags & OP_IS_PUTFH_LIKE))
1237 return false;
1238 /*
1239 * rfc 5661 2.6.3.1.1.6: don't bother erroring out a
1240 * put-filehandle operation if we're not going to use the
1241 * result:
1242 */
1243 if (argp->opcnt == resp->opcnt)
1244 return false;
1245
1246 nextd = OPDESC(next);
1247 /*
1248 * Rest of 2.6.3.1.1: certain operations will return WRONGSEC
1249 * errors themselves as necessary; others should check for them
1250 * now:
1251 */
1252 return !(nextd->op_flags & OP_HANDLES_WRONGSEC);
1253}
1254
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001255/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256 * COMPOUND call.
1257 */
Al Viro7111c662006-10-19 23:28:45 -07001258static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259nfsd4_proc_compound(struct svc_rqst *rqstp,
1260 struct nfsd4_compoundargs *args,
1261 struct nfsd4_compoundres *resp)
1262{
1263 struct nfsd4_op *op;
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001264 struct nfsd4_operation *opdesc;
Andy Adamsone354d572009-03-28 11:30:52 +03001265 struct nfsd4_compound_state *cstate = &resp->cstate;
J.Bruce Fieldse5710192006-12-13 00:35:20 -08001266 int slack_bytes;
Mi Jinlong58e7b332011-08-28 18:18:56 +08001267 u32 plen = 0;
Al Virob37ad282006-10-19 23:28:59 -07001268 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270 resp->xbuf = &rqstp->rq_res;
Andy Adamsone354d572009-03-28 11:30:52 +03001271 resp->p = rqstp->rq_res.head[0].iov_base +
1272 rqstp->rq_res.head[0].iov_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 resp->tagp = resp->p;
1274 /* reserve space for: taglen, tag, and opcnt */
1275 resp->p += 2 + XDR_QUADLEN(args->taglen);
1276 resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE;
1277 resp->taglen = args->taglen;
1278 resp->tag = args->tag;
1279 resp->opcnt = 0;
1280 resp->rqstp = rqstp;
Andy Adamsond87a8ad2009-04-03 08:28:53 +03001281 resp->cstate.minorversion = args->minorversion;
Andy Adamsone354d572009-03-28 11:30:52 +03001282 resp->cstate.replay_owner = NULL;
J. Bruce Fields26c0c752010-04-24 15:35:43 -04001283 resp->cstate.session = NULL;
Andy Adamsone354d572009-03-28 11:30:52 +03001284 fh_init(&resp->cstate.current_fh, NFS4_FHSIZE);
1285 fh_init(&resp->cstate.save_fh, NFS4_FHSIZE);
NeilBrown8ff30fa2010-08-12 17:04:07 +10001286 /*
1287 * Don't use the deferral mechanism for NFSv4; compounds make it
1288 * too hard to avoid non-idempotency problems.
1289 */
1290 rqstp->rq_usedeferral = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291
1292 /*
1293 * According to RFC3010, this takes precedence over all other errors.
1294 */
1295 status = nfserr_minor_vers_mismatch;
J. Bruce Fields35f7a142013-07-08 19:51:44 -04001296 if (nfsd_minorversion(args->minorversion, NFSD_TEST) <= 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297 goto out;
1298
J. Bruce Fields57716352010-04-21 12:27:19 -04001299 status = nfs41_check_op_ordering(args);
1300 if (status) {
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001301 op = &args->ops[0];
J. Bruce Fields57716352010-04-21 12:27:19 -04001302 op->status = status;
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001303 goto encode_op;
1304 }
1305
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306 while (!status && resp->opcnt < args->opcnt) {
1307 op = &args->ops[resp->opcnt++];
1308
Benny Halevyb001a1b2008-07-02 11:15:03 +03001309 dprintk("nfsv4 compound op #%d/%d: %d (%s)\n",
1310 resp->opcnt, args->opcnt, op->opnum,
1311 nfsd4_op_name(op->opnum));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001312 /*
1313 * The XDR decode routines may have pre-set op->status;
1314 * for example, if there is a miscellaneous XDR error
1315 * it will be set to nfserr_bad_xdr.
1316 */
J. Bruce Fields9d313b12013-02-28 12:51:49 -08001317 if (op->status) {
1318 if (op->opnum == OP_OPEN)
1319 op->status = nfsd4_open_omfg(rqstp, cstate, op);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320 goto encode_op;
J. Bruce Fields9d313b12013-02-28 12:51:49 -08001321 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322
1323 /* We must be able to encode a successful response to
1324 * this operation, with enough room left over to encode a
1325 * failed response to the next operation. If we don't
1326 * have enough room, fail with ERR_RESOURCE.
1327 */
J.Bruce Fieldse5710192006-12-13 00:35:20 -08001328 slack_bytes = (char *)resp->end - (char *)resp->p;
1329 if (slack_bytes < COMPOUND_SLACK_SPACE
1330 + COMPOUND_ERR_SLACK_SPACE) {
1331 BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332 op->status = nfserr_resource;
1333 goto encode_op;
1334 }
1335
J. Bruce Fields22b03212011-04-09 11:23:24 -04001336 opdesc = OPDESC(op);
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001337
J.Bruce Fieldsca364312006-12-13 00:35:27 -08001338 if (!cstate->current_fh.fh_dentry) {
J.Bruce Fields27d630e2006-12-13 00:35:43 -08001339 if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) {
J.Bruce Fields42ca0992006-10-04 02:16:20 -07001340 op->status = nfserr_nofilehandle;
1341 goto encode_op;
1342 }
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001343 } else if (cstate->current_fh.fh_export->ex_fslocs.migrated &&
1344 !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) {
J.Bruce Fields42ca0992006-10-04 02:16:20 -07001345 op->status = nfserr_moved;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 goto encode_op;
1347 }
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001348
Mi Jinlong58e7b332011-08-28 18:18:56 +08001349 /* If op is non-idempotent */
1350 if (opdesc->op_flags & OP_MODIFIES_SOMETHING) {
1351 plen = opdesc->op_rsize_bop(rqstp, op);
1352 op->status = nfsd4_check_resp_size(resp, plen);
1353 }
1354
1355 if (op->status)
1356 goto encode_op;
1357
J. Bruce Fieldsb600de72013-02-28 11:55:46 -08001358 if (opdesc->op_get_currentstateid)
1359 opdesc->op_get_currentstateid(cstate, &op->u);
1360 op->status = opdesc->op_func(rqstp, cstate, &op->u);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001362 if (!op->status) {
1363 if (opdesc->op_set_currentstateid)
1364 opdesc->op_set_currentstateid(cstate, &op->u);
1365
1366 if (opdesc->op_flags & OP_CLEAR_STATEID)
Tigran Mkrtchyan37c593c2012-02-13 22:55:32 +01001367 clear_current_stateid(cstate);
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001368
1369 if (need_wrongsec_check(rqstp))
1370 op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp);
1371 }
J. Bruce Fields68d93182011-04-08 17:00:50 -04001372
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373encode_op:
Andy Adamson49557cc2009-07-23 19:02:16 -04001374 /* Only from SEQUENCE */
Andy Adamsonda3846a2009-04-03 08:28:22 +03001375 if (resp->cstate.status == nfserr_replay_cache) {
1376 dprintk("%s NFS4.1 replay from cache\n", __func__);
Andy Adamsonabfabf82009-07-23 19:02:18 -04001377 status = op->status;
Andy Adamsonda3846a2009-04-03 08:28:22 +03001378 goto out;
1379 }
Al Viroa90b0612006-10-19 23:29:03 -07001380 if (op->status == nfserr_replay_me) {
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001381 op->replay = &cstate->replay_owner->so_replay;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382 nfsd4_encode_replay(resp, op);
1383 status = op->status = op->replay->rp_status;
1384 } else {
1385 nfsd4_encode_operation(resp, op);
1386 status = op->status;
1387 }
Benny Halevy04077172008-12-15 19:40:49 +02001388
1389 dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n",
1390 args->ops, args->opcnt, resp->opcnt, op->opnum,
1391 be32_to_cpu(status));
1392
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001393 if (cstate->replay_owner) {
J. Bruce Fields5ec094c2011-08-30 17:02:48 -04001394 nfs4_unlock_state();
J.Bruce Fieldsa4f1706a92006-12-13 00:35:28 -08001395 cstate->replay_owner = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396 }
NeilBrown7e06b7f2005-06-23 22:03:13 -07001397 /* XXX Ugh, we need to get rid of this kind of special case: */
1398 if (op->opnum == OP_READ && op->u.read.rd_filp)
1399 fput(op->u.read.rd_filp);
Shankar Anande2b20952006-07-10 04:45:44 -07001400
1401 nfsd4_increment_op_stats(op->opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402 }
1403
Andy Adamsonda3846a2009-04-03 08:28:22 +03001404 resp->cstate.status = status;
Andy Adamsone354d572009-03-28 11:30:52 +03001405 fh_put(&resp->cstate.current_fh);
1406 fh_put(&resp->cstate.save_fh);
1407 BUG_ON(resp->cstate.replay_owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408out:
Andy Adamson2f425872009-04-03 08:27:32 +03001409 /* Reset deferral mechanism for RPC deferrals */
1410 rqstp->rq_usedeferral = 1;
J. Bruce Fields3b12cd92008-05-05 17:17:44 -04001411 dprintk("nfsv4 compound returned %d\n", ntohl(status));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412 return status;
1413}
1414
Mi Jinlong58e7b332011-08-28 18:18:56 +08001415#define op_encode_hdr_size (2)
1416#define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
1417#define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
1418#define op_encode_change_info_maxsz (5)
1419#define nfs4_fattr_bitmap_maxsz (4)
1420
1421#define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
1422#define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz)
1423
1424#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
1425
1426#define op_encode_ace_maxsz (3 + nfs4_owner_maxsz)
1427#define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \
1428 op_encode_ace_maxsz)
1429
1430#define op_encode_channel_attrs_maxsz (6 + 1 + 1)
1431
1432static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1433{
1434 return (op_encode_hdr_size) * sizeof(__be32);
1435}
1436
1437static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1438{
1439 return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32);
1440}
1441
1442static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1443{
1444 return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
1445}
1446
1447static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1448{
1449 return (op_encode_hdr_size + op_encode_change_info_maxsz
1450 + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
1451}
1452
1453static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1454{
1455 return (op_encode_hdr_size + op_encode_change_info_maxsz)
1456 * sizeof(__be32);
1457}
1458
1459static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1460{
1461 return (op_encode_hdr_size + op_encode_lock_denied_maxsz)
1462 * sizeof(__be32);
1463}
1464
1465static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1466{
1467 return (op_encode_hdr_size + op_encode_stateid_maxsz
1468 + op_encode_change_info_maxsz + 1
1469 + nfs4_fattr_bitmap_maxsz
1470 + op_encode_delegation_maxsz) * sizeof(__be32);
1471}
1472
1473static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1474{
1475 u32 maxcount = 0, rlen = 0;
1476
1477 maxcount = svc_max_payload(rqstp);
1478 rlen = op->u.read.rd_length;
1479
1480 if (rlen > maxcount)
1481 rlen = maxcount;
1482
1483 return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen;
1484}
1485
1486static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1487{
1488 u32 rlen = op->u.readdir.rd_maxcount;
1489
1490 if (rlen > PAGE_SIZE)
1491 rlen = PAGE_SIZE;
1492
1493 return (op_encode_hdr_size + op_encode_verifier_maxsz)
1494 * sizeof(__be32) + rlen;
1495}
1496
1497static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1498{
1499 return (op_encode_hdr_size + op_encode_change_info_maxsz)
1500 * sizeof(__be32);
1501}
1502
1503static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1504{
1505 return (op_encode_hdr_size + op_encode_change_info_maxsz
1506 + op_encode_change_info_maxsz) * sizeof(__be32);
1507}
1508
1509static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1510{
1511 return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
1512}
1513
1514static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1515{
1516 return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32);
1517}
1518
1519static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1520{
1521 return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
1522}
1523
1524static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1525{
1526 return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\
Weston Andros Adamson58cd57b2013-08-05 15:47:07 -04001527 1 + 1 + 2 + /* eir_flags, spr_how, spo_must_enforce & _allow */\
Mi Jinlong58e7b332011-08-28 18:18:56 +08001528 2 + /*eir_server_owner.so_minor_id */\
1529 /* eir_server_owner.so_major_id<> */\
1530 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
1531 /* eir_server_scope<> */\
1532 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
1533 1 + /* eir_server_impl_id array length */\
1534 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32);
1535}
1536
1537static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1538{
1539 return (op_encode_hdr_size + \
1540 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\
1541 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32);
1542}
1543
1544static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1545{
1546 return (op_encode_hdr_size + \
1547 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\
1548 2 + /* csr_sequence, csr_flags */\
1549 op_encode_channel_attrs_maxsz + \
1550 op_encode_channel_attrs_maxsz) * sizeof(__be32);
1551}
1552
Benny Halevy20766012009-03-28 11:32:05 +03001553static struct nfsd4_operation nfsd4_ops[] = {
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001554 [OP_ACCESS] = {
1555 .op_func = (nfsd4op_func)nfsd4_access,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001556 .op_name = "OP_ACCESS",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001557 },
1558 [OP_CLOSE] = {
1559 .op_func = (nfsd4op_func)nfsd4_close,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001560 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001561 .op_name = "OP_CLOSE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001562 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001563 .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid,
1564 .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001565 },
1566 [OP_COMMIT] = {
1567 .op_func = (nfsd4op_func)nfsd4_commit,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001568 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001569 .op_name = "OP_COMMIT",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001570 .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001571 },
1572 [OP_CREATE] = {
1573 .op_func = (nfsd4op_func)nfsd4_create,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001574 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001575 .op_name = "OP_CREATE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001576 .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001577 },
1578 [OP_DELEGRETURN] = {
1579 .op_func = (nfsd4op_func)nfsd4_delegreturn,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001580 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001581 .op_name = "OP_DELEGRETURN",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001582 .op_rsize_bop = nfsd4_only_status_rsize,
Tigran Mkrtchyan9428fe12012-02-13 22:55:31 +01001583 .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001584 },
1585 [OP_GETATTR] = {
1586 .op_func = (nfsd4op_func)nfsd4_getattr,
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001587 .op_flags = ALLOWED_ON_ABSENT_FS,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001588 .op_name = "OP_GETATTR",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001589 },
1590 [OP_GETFH] = {
1591 .op_func = (nfsd4op_func)nfsd4_getfh,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001592 .op_name = "OP_GETFH",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001593 },
1594 [OP_LINK] = {
1595 .op_func = (nfsd4op_func)nfsd4_link,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001596 .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING
1597 | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001598 .op_name = "OP_LINK",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001599 .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001600 },
1601 [OP_LOCK] = {
1602 .op_func = (nfsd4op_func)nfsd4_lock,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001603 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001604 .op_name = "OP_LOCK",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001605 .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
Tigran Mkrtchyan62cd4a52012-02-13 22:55:25 +01001606 .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001607 },
1608 [OP_LOCKT] = {
1609 .op_func = (nfsd4op_func)nfsd4_lockt,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001610 .op_name = "OP_LOCKT",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001611 },
1612 [OP_LOCKU] = {
1613 .op_func = (nfsd4op_func)nfsd4_locku,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001614 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001615 .op_name = "OP_LOCKU",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001616 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan62cd4a52012-02-13 22:55:25 +01001617 .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001618 },
1619 [OP_LOOKUP] = {
1620 .op_func = (nfsd4op_func)nfsd4_lookup,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001621 .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001622 .op_name = "OP_LOOKUP",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001623 },
1624 [OP_LOOKUPP] = {
1625 .op_func = (nfsd4op_func)nfsd4_lookupp,
Tigran Mkrtchyand1471052012-02-13 22:55:29 +01001626 .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001627 .op_name = "OP_LOOKUPP",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001628 },
1629 [OP_NVERIFY] = {
1630 .op_func = (nfsd4op_func)nfsd4_nverify,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001631 .op_name = "OP_NVERIFY",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001632 },
1633 [OP_OPEN] = {
1634 .op_func = (nfsd4op_func)nfsd4_open,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001635 .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001636 .op_name = "OP_OPEN",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001637 .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize,
Tigran Mkrtchyan8b704842012-02-13 22:55:24 +01001638 .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001639 },
1640 [OP_OPEN_CONFIRM] = {
1641 .op_func = (nfsd4op_func)nfsd4_open_confirm,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001642 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001643 .op_name = "OP_OPEN_CONFIRM",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001644 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001645 },
1646 [OP_OPEN_DOWNGRADE] = {
1647 .op_func = (nfsd4op_func)nfsd4_open_downgrade,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001648 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001649 .op_name = "OP_OPEN_DOWNGRADE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001650 .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
Tigran Mkrtchyan9428fe12012-02-13 22:55:31 +01001651 .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid,
1652 .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001653 },
1654 [OP_PUTFH] = {
1655 .op_func = (nfsd4op_func)nfsd4_putfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001656 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001657 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1658 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001659 .op_name = "OP_PUTFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001660 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001661 },
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001662 [OP_PUTPUBFH] = {
J. Bruce Fieldsa1c8c4d2009-03-09 12:17:29 -04001663 .op_func = (nfsd4op_func)nfsd4_putrootfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001664 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001665 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1666 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001667 .op_name = "OP_PUTPUBFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001668 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldseeac2942006-12-13 00:35:39 -08001669 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001670 [OP_PUTROOTFH] = {
1671 .op_func = (nfsd4op_func)nfsd4_putrootfh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001672 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Tigran Mkrtchyan80e01cc2012-02-13 22:55:27 +01001673 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
1674 | OP_CLEAR_STATEID,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001675 .op_name = "OP_PUTROOTFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001676 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001677 },
1678 [OP_READ] = {
1679 .op_func = (nfsd4op_func)nfsd4_read,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001680 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001681 .op_name = "OP_READ",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001682 .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize,
Tigran Mkrtchyan30813e22012-02-13 22:55:26 +01001683 .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001684 },
1685 [OP_READDIR] = {
1686 .op_func = (nfsd4op_func)nfsd4_readdir,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001687 .op_flags = OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001688 .op_name = "OP_READDIR",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001689 .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001690 },
1691 [OP_READLINK] = {
1692 .op_func = (nfsd4op_func)nfsd4_readlink,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001693 .op_name = "OP_READLINK",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001694 },
1695 [OP_REMOVE] = {
1696 .op_func = (nfsd4op_func)nfsd4_remove,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001697 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001698 .op_name = "OP_REMOVE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001699 .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001700 },
1701 [OP_RENAME] = {
1702 .op_func = (nfsd4op_func)nfsd4_rename,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001703 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001704 .op_name = "OP_RENAME",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001705 .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001706 },
1707 [OP_RENEW] = {
1708 .op_func = (nfsd4op_func)nfsd4_renew,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001709 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
1710 | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001711 .op_name = "OP_RENEW",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001712 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
1713
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001714 },
1715 [OP_RESTOREFH] = {
1716 .op_func = (nfsd4op_func)nfsd4_restorefh,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001717 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
Mi Jinlong58e7b332011-08-28 18:18:56 +08001718 | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001719 .op_name = "OP_RESTOREFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001720 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001721 },
1722 [OP_SAVEFH] = {
1723 .op_func = (nfsd4op_func)nfsd4_savefh,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001724 .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001725 .op_name = "OP_SAVEFH",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001726 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001727 },
Andy Adamsondcb488a32007-07-17 04:04:51 -07001728 [OP_SECINFO] = {
1729 .op_func = (nfsd4op_func)nfsd4_secinfo,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001730 .op_flags = OP_HANDLES_WRONGSEC,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001731 .op_name = "OP_SECINFO",
Andy Adamsondcb488a32007-07-17 04:04:51 -07001732 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001733 [OP_SETATTR] = {
1734 .op_func = (nfsd4op_func)nfsd4_setattr,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001735 .op_name = "OP_SETATTR",
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001736 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001737 .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize,
Tigran Mkrtchyan1e97b512012-02-13 22:55:30 +01001738 .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001739 },
1740 [OP_SETCLIENTID] = {
1741 .op_func = (nfsd4op_func)nfsd4_setclientid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001742 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001743 | OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001744 .op_name = "OP_SETCLIENTID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001745 .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001746 },
1747 [OP_SETCLIENTID_CONFIRM] = {
1748 .op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001749 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001750 | OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001751 .op_name = "OP_SETCLIENTID_CONFIRM",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001752 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001753 },
1754 [OP_VERIFY] = {
1755 .op_func = (nfsd4op_func)nfsd4_verify,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001756 .op_name = "OP_VERIFY",
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001757 },
1758 [OP_WRITE] = {
1759 .op_func = (nfsd4op_func)nfsd4_write,
J. Bruce Fieldsc8566942011-09-20 08:49:51 -04001760 .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001761 .op_name = "OP_WRITE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001762 .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
Tigran Mkrtchyan30813e22012-02-13 22:55:26 +01001763 .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001764 },
1765 [OP_RELEASE_LOCKOWNER] = {
1766 .op_func = (nfsd4op_func)nfsd4_release_lockowner,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001767 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
1768 | OP_MODIFIES_SOMETHING,
Benny Halevyb001a1b2008-07-02 11:15:03 +03001769 .op_name = "OP_RELEASE_LOCKOWNER",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001770 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001771 },
Andy Adamson069b6ad2009-04-03 08:27:58 +03001772
1773 /* NFSv4.1 operations */
1774 [OP_EXCHANGE_ID] = {
1775 .op_func = (nfsd4op_func)nfsd4_exchange_id,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001776 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1777 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001778 .op_name = "OP_EXCHANGE_ID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001779 .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001780 },
J. Bruce Fieldscb73a9f2012-11-01 18:09:48 -04001781 [OP_BACKCHANNEL_CTL] = {
1782 .op_func = (nfsd4op_func)nfsd4_backchannel_ctl,
1783 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
1784 .op_name = "OP_BACKCHANNEL_CTL",
1785 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
1786 },
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001787 [OP_BIND_CONN_TO_SESSION] = {
1788 .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001789 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1790 | OP_MODIFIES_SOMETHING,
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001791 .op_name = "OP_BIND_CONN_TO_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001792 .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize,
J. Bruce Fields1d1bc8f2010-10-04 23:12:59 -04001793 },
Andy Adamson069b6ad2009-04-03 08:27:58 +03001794 [OP_CREATE_SESSION] = {
1795 .op_func = (nfsd4op_func)nfsd4_create_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001796 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1797 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001798 .op_name = "OP_CREATE_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001799 .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001800 },
1801 [OP_DESTROY_SESSION] = {
1802 .op_func = (nfsd4op_func)nfsd4_destroy_session,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001803 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1804 | OP_MODIFIES_SOMETHING,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001805 .op_name = "OP_DESTROY_SESSION",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001806 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001807 },
1808 [OP_SEQUENCE] = {
1809 .op_func = (nfsd4op_func)nfsd4_sequence,
Andy Adamsonf9bb94c2009-04-03 08:28:12 +03001810 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
Andy Adamson069b6ad2009-04-03 08:27:58 +03001811 .op_name = "OP_SEQUENCE",
1812 },
Benny Halevy094b5d72011-06-16 11:39:10 -04001813 [OP_DESTROY_CLIENTID] = {
Mi Jinlong345c2842011-10-20 17:51:39 +08001814 .op_func = (nfsd4op_func)nfsd4_destroy_clientid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001815 .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
1816 | OP_MODIFIES_SOMETHING,
Benny Halevy094b5d72011-06-16 11:39:10 -04001817 .op_name = "OP_DESTROY_CLIENTID",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001818 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Benny Halevy094b5d72011-06-16 11:39:10 -04001819 },
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001820 [OP_RECLAIM_COMPLETE] = {
1821 .op_func = (nfsd4op_func)nfsd4_reclaim_complete,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001822 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001823 .op_name = "OP_RECLAIM_COMPLETE",
Mi Jinlong58e7b332011-08-28 18:18:56 +08001824 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
J. Bruce Fields4dc6ec02010-04-19 15:11:28 -04001825 },
J. Bruce Fields04f4ad12010-12-16 09:51:13 -05001826 [OP_SECINFO_NO_NAME] = {
1827 .op_func = (nfsd4op_func)nfsd4_secinfo_no_name,
J. Bruce Fields68d93182011-04-08 17:00:50 -04001828 .op_flags = OP_HANDLES_WRONGSEC,
J. Bruce Fields04f4ad12010-12-16 09:51:13 -05001829 .op_name = "OP_SECINFO_NO_NAME",
1830 },
Bryan Schumaker17456802011-07-13 10:50:48 -04001831 [OP_TEST_STATEID] = {
1832 .op_func = (nfsd4op_func)nfsd4_test_stateid,
1833 .op_flags = ALLOWED_WITHOUT_FH,
1834 .op_name = "OP_TEST_STATEID",
1835 },
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001836 [OP_FREE_STATEID] = {
1837 .op_func = (nfsd4op_func)nfsd4_free_stateid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001838 .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001839 .op_name = "OP_FREE_STATEID",
J. Bruce Fieldsa1dc6952012-12-17 18:17:13 -05001840 .op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid,
Mi Jinlong58e7b332011-08-28 18:18:56 +08001841 .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
Bryan Schumakere1ca12d2011-07-13 11:04:21 -04001842 },
J.Bruce Fieldsb5914802006-12-13 00:35:38 -08001843};
1844
Trond Myklebust8f199b82012-03-20 15:11:17 -04001845#ifdef NFSD_DEBUG
Adrian Bunkf1c7f792008-08-08 19:26:42 +03001846static const char *nfsd4_op_name(unsigned opnum)
Benny Halevyb001a1b2008-07-02 11:15:03 +03001847{
1848 if (opnum < ARRAY_SIZE(nfsd4_ops))
1849 return nfsd4_ops[opnum].op_name;
1850 return "unknown_operation";
1851}
Trond Myklebust8f199b82012-03-20 15:11:17 -04001852#endif
Benny Halevyb001a1b2008-07-02 11:15:03 +03001853
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854#define nfsd4_voidres nfsd4_voidargs
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855struct nfsd4_voidargs { int dummy; };
1856
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857static struct svc_procedure nfsd_procedures4[2] = {
Yu Zhiguo0a93a472009-05-19 14:09:54 +08001858 [NFSPROC4_NULL] = {
1859 .pc_func = (svc_procfunc) nfsd4_proc_null,
1860 .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres,
1861 .pc_argsize = sizeof(struct nfsd4_voidargs),
1862 .pc_ressize = sizeof(struct nfsd4_voidres),
1863 .pc_cachetype = RC_NOCACHE,
1864 .pc_xdrressize = 1,
1865 },
1866 [NFSPROC4_COMPOUND] = {
1867 .pc_func = (svc_procfunc) nfsd4_proc_compound,
1868 .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs,
1869 .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres,
1870 .pc_argsize = sizeof(struct nfsd4_compoundargs),
1871 .pc_ressize = sizeof(struct nfsd4_compoundres),
J. Bruce Fields3e98abf2011-07-16 17:15:10 -04001872 .pc_release = nfsd4_release_compoundargs,
Yu Zhiguo0a93a472009-05-19 14:09:54 +08001873 .pc_cachetype = RC_NOCACHE,
1874 .pc_xdrressize = NFSD_BUFSIZE/4,
1875 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07001876};
1877
1878struct svc_version nfsd_version4 = {
1879 .vs_vers = 4,
1880 .vs_nproc = 2,
1881 .vs_proc = nfsd_procedures4,
1882 .vs_dispatch = nfsd_dispatch,
1883 .vs_xdrsize = NFS4_SVC_XDRSIZE,
1884};
1885
1886/*
1887 * Local variables:
1888 * c-basic-offset: 8
1889 * End:
1890 */