Commit | Line | Data |
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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * 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. | |
1da177e4 | 34 | */ |
7e06b7f9 | 35 | #include <linux/file.h> |
5a0e3ad6 | 36 | #include <linux/slab.h> |
1da177e4 | 37 | |
9a74af21 BH |
38 | #include "cache.h" |
39 | #include "xdr4.h" | |
0a3adade | 40 | #include "vfs.h" |
1da177e4 LT |
41 | |
42 | #define NFSDDBG_FACILITY NFSDDBG_PROC | |
43 | ||
3c8e0316 YZ |
44 | static u32 nfsd_attrmask[] = { |
45 | NFSD_WRITEABLE_ATTRS_WORD0, | |
46 | NFSD_WRITEABLE_ATTRS_WORD1, | |
47 | NFSD_WRITEABLE_ATTRS_WORD2 | |
48 | }; | |
49 | ||
50 | static u32 nfsd41_ex_attrmask[] = { | |
51 | NFSD_SUPPATTR_EXCLCREAT_WORD0, | |
52 | NFSD_SUPPATTR_EXCLCREAT_WORD1, | |
53 | NFSD_SUPPATTR_EXCLCREAT_WORD2 | |
54 | }; | |
55 | ||
56 | static __be32 | |
57 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
58 | u32 *bmval, u32 *writable) | |
59 | { | |
60 | struct dentry *dentry = cstate->current_fh.fh_dentry; | |
3c8e0316 YZ |
61 | |
62 | /* | |
63 | * Check about attributes are supported by the NFSv4 server or not. | |
64 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. | |
65 | */ | |
66 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || | |
67 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || | |
68 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) | |
69 | return nfserr_attrnotsupp; | |
70 | ||
71 | /* | |
a06b1261 | 72 | * Check FATTR4_WORD0_ACL can be supported |
3c8e0316 YZ |
73 | * in current environment or not. |
74 | */ | |
75 | if (bmval[0] & FATTR4_WORD0_ACL) { | |
76 | if (!IS_POSIXACL(dentry->d_inode)) | |
77 | return nfserr_attrnotsupp; | |
78 | } | |
3c8e0316 YZ |
79 | |
80 | /* | |
81 | * According to spec, read-only attributes return ERR_INVAL. | |
82 | */ | |
83 | if (writable) { | |
84 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || | |
85 | (bmval[2] & ~writable[2])) | |
86 | return nfserr_inval; | |
87 | } | |
88 | ||
89 | return nfs_ok; | |
90 | } | |
91 | ||
92 | static __be32 | |
93 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, | |
94 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) | |
95 | { | |
96 | __be32 status = nfs_ok; | |
97 | ||
98 | if (open->op_create == NFS4_OPEN_CREATE) { | |
99 | if (open->op_createmode == NFS4_CREATE_UNCHECKED | |
100 | || open->op_createmode == NFS4_CREATE_GUARDED) | |
101 | status = check_attr_support(rqstp, cstate, | |
102 | open->op_bmval, nfsd_attrmask); | |
103 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) | |
104 | status = check_attr_support(rqstp, cstate, | |
105 | open->op_bmval, nfsd41_ex_attrmask); | |
106 | } | |
107 | ||
108 | return status; | |
109 | } | |
110 | ||
9208faf2 YZ |
111 | static int |
112 | is_create_with_attrs(struct nfsd4_open *open) | |
113 | { | |
114 | return open->op_create == NFS4_OPEN_CREATE | |
115 | && (open->op_createmode == NFS4_CREATE_UNCHECKED | |
116 | || open->op_createmode == NFS4_CREATE_GUARDED | |
117 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); | |
118 | } | |
119 | ||
120 | /* | |
121 | * if error occurs when setting the acl, just clear the acl bit | |
122 | * in the returned attr bitmap. | |
123 | */ | |
124 | static void | |
125 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, | |
126 | struct nfs4_acl *acl, u32 *bmval) | |
127 | { | |
128 | __be32 status; | |
129 | ||
130 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); | |
131 | if (status) | |
132 | /* | |
133 | * We should probably fail the whole open at this point, | |
134 | * but we've already created the file, so it's too late; | |
135 | * So this seems the least of evils: | |
136 | */ | |
137 | bmval[0] &= ~FATTR4_WORD0_ACL; | |
138 | } | |
139 | ||
1da177e4 LT |
140 | static inline void |
141 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) | |
142 | { | |
143 | fh_put(dst); | |
144 | dget(src->fh_dentry); | |
145 | if (src->fh_export) | |
146 | cache_get(&src->fh_export->h); | |
147 | *dst = *src; | |
148 | } | |
149 | ||
b37ad28b | 150 | static __be32 |
dc730e17 | 151 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
1da177e4 | 152 | { |
b37ad28b | 153 | __be32 status; |
1da177e4 LT |
154 | |
155 | if (open->op_truncate && | |
156 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) | |
157 | return nfserr_inval; | |
158 | ||
1da177e4 | 159 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
8837abca | 160 | accmode |= NFSD_MAY_READ; |
9801d8a3 | 161 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
8837abca | 162 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
57ecb34f | 163 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
8837abca | 164 | accmode |= NFSD_MAY_WRITE; |
1da177e4 LT |
165 | |
166 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); | |
167 | ||
168 | return status; | |
169 | } | |
170 | ||
b37ad28b | 171 | static __be32 |
1da177e4 LT |
172 | do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
173 | { | |
174 | struct svc_fh resfh; | |
b37ad28b | 175 | __be32 status; |
81ac95c5 | 176 | int created = 0; |
1da177e4 LT |
177 | |
178 | fh_init(&resfh, NFS4_FHSIZE); | |
179 | open->op_truncate = 0; | |
180 | ||
181 | if (open->op_create) { | |
79fb54ab BH |
182 | /* FIXME: check session persistence and pnfs flags. |
183 | * The nfsv4.1 spec requires the following semantics: | |
184 | * | |
185 | * Persistent | pNFS | Server REQUIRED | Client Allowed | |
186 | * Reply Cache | server | | | |
187 | * -------------+--------+-----------------+-------------------- | |
188 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
189 | * | | | (SHOULD) | |
190 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 | |
191 | * | | | (SHOULD NOT) | |
192 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
193 | * yes | no | GUARDED4 | GUARDED4 | |
194 | * yes | yes | GUARDED4 | GUARDED4 | |
195 | */ | |
196 | ||
1da177e4 LT |
197 | /* |
198 | * Note: create modes (UNCHECKED,GUARDED...) are the same | |
ac6721a1 | 199 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
1da177e4 | 200 | */ |
ac6721a1 | 201 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
1da177e4 LT |
202 | open->op_fname.len, &open->op_iattr, |
203 | &resfh, open->op_createmode, | |
749997e5 JL |
204 | (u32 *)open->op_verf.data, |
205 | &open->op_truncate, &created); | |
206 | ||
99f88726 BF |
207 | /* |
208 | * Following rfc 3530 14.2.16, use the returned bitmask | |
209 | * to indicate which attributes we used to store the | |
210 | * verifier: | |
749997e5 JL |
211 | */ |
212 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) | |
99f88726 | 213 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
749997e5 | 214 | FATTR4_WORD1_TIME_MODIFY); |
af85852d | 215 | } else { |
1da177e4 LT |
216 | status = nfsd_lookup(rqstp, current_fh, |
217 | open->op_fname.data, open->op_fname.len, &resfh); | |
218 | fh_unlock(current_fh); | |
219 | } | |
af85852d BF |
220 | if (status) |
221 | goto out; | |
1da177e4 | 222 | |
9208faf2 YZ |
223 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
224 | do_set_nfs4_acl(rqstp, &resfh, open->op_acl, open->op_bmval); | |
225 | ||
af85852d | 226 | set_change_info(&open->op_cinfo, current_fh); |
13024b7b | 227 | fh_dup2(current_fh, &resfh); |
1da177e4 | 228 | |
af85852d | 229 | /* set reply cache */ |
a4773c08 BF |
230 | fh_copy_shallow(&open->op_stateowner->so_replay.rp_openfh, |
231 | &resfh.fh_handle); | |
81ac95c5 | 232 | if (!created) |
8837abca MS |
233 | status = do_open_permission(rqstp, current_fh, open, |
234 | NFSD_MAY_NOP); | |
1da177e4 | 235 | |
af85852d | 236 | out: |
1da177e4 LT |
237 | fh_put(&resfh); |
238 | return status; | |
239 | } | |
240 | ||
b37ad28b | 241 | static __be32 |
1da177e4 LT |
242 | do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
243 | { | |
b37ad28b | 244 | __be32 status; |
1da177e4 LT |
245 | |
246 | /* Only reclaims from previously confirmed clients are valid */ | |
247 | if ((status = nfs4_check_open_reclaim(&open->op_clientid))) | |
248 | return status; | |
249 | ||
250 | /* We don't know the target directory, and therefore can not | |
251 | * set the change info | |
252 | */ | |
253 | ||
254 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
255 | ||
256 | /* set replay cache */ | |
a4773c08 BF |
257 | fh_copy_shallow(&open->op_stateowner->so_replay.rp_openfh, |
258 | ¤t_fh->fh_handle); | |
1da177e4 LT |
259 | |
260 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
261 | (open->op_iattr.ia_size == 0); | |
262 | ||
8837abca MS |
263 | status = do_open_permission(rqstp, current_fh, open, |
264 | NFSD_MAY_OWNER_OVERRIDE); | |
1da177e4 LT |
265 | |
266 | return status; | |
267 | } | |
268 | ||
60adfc50 AA |
269 | static void |
270 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) | |
271 | { | |
272 | struct nfsd4_sessionid *sid = | |
273 | (struct nfsd4_sessionid *)session->se_sessionid.data; | |
274 | ||
275 | clid->cl_boot = sid->clientid.cl_boot; | |
276 | clid->cl_id = sid->clientid.cl_id; | |
277 | } | |
1da177e4 | 278 | |
7191155b | 279 | static __be32 |
ca364317 | 280 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
a4f1706a | 281 | struct nfsd4_open *open) |
1da177e4 | 282 | { |
b37ad28b | 283 | __be32 status; |
6668958f AA |
284 | struct nfsd4_compoundres *resp; |
285 | ||
1da177e4 LT |
286 | dprintk("NFSD: nfsd4_open filename %.*s op_stateowner %p\n", |
287 | (int)open->op_fname.len, open->op_fname.data, | |
288 | open->op_stateowner); | |
289 | ||
1da177e4 LT |
290 | /* This check required by spec. */ |
291 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
292 | return nfserr_inval; | |
293 | ||
ab1350b2 MJ |
294 | /* |
295 | * RFC5661 18.51.3 | |
296 | * Before RECLAIM_COMPLETE done, server should deny new lock | |
297 | */ | |
298 | if (nfsd4_has_session(cstate) && | |
299 | !cstate->session->se_client->cl_firststate && | |
300 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) | |
301 | return nfserr_grace; | |
302 | ||
60adfc50 AA |
303 | if (nfsd4_has_session(cstate)) |
304 | copy_clientid(&open->op_clientid, cstate->session); | |
305 | ||
1da177e4 LT |
306 | nfs4_lock_state(); |
307 | ||
308 | /* check seqid for replay. set nfs4_owner */ | |
6668958f AA |
309 | resp = rqstp->rq_resp; |
310 | status = nfsd4_process_open1(&resp->cstate, open); | |
a90b061c | 311 | if (status == nfserr_replay_me) { |
1da177e4 | 312 | struct nfs4_replay *rp = &open->op_stateowner->so_replay; |
ca364317 | 313 | fh_put(&cstate->current_fh); |
a4773c08 BF |
314 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
315 | &rp->rp_openfh); | |
8837abca | 316 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
317 | if (status) |
318 | dprintk("nfsd4_open: replay failed" | |
319 | " restoring previous filehandle\n"); | |
320 | else | |
a90b061c | 321 | status = nfserr_replay_me; |
1da177e4 LT |
322 | } |
323 | if (status) | |
324 | goto out; | |
fb553c0f | 325 | |
3c8e0316 YZ |
326 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
327 | if (status) | |
328 | goto out; | |
329 | ||
fb553c0f BF |
330 | /* Openowner is now set, so sequence id will get bumped. Now we need |
331 | * these checks before we do any creates: */ | |
cbd0d51a | 332 | status = nfserr_grace; |
af558e33 | 333 | if (locks_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
334 | goto out; |
335 | status = nfserr_no_grace; | |
af558e33 | 336 | if (!locks_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 337 | goto out; |
fb553c0f | 338 | |
1da177e4 | 339 | switch (open->op_claim_type) { |
0dd3c192 | 340 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
1da177e4 LT |
341 | case NFS4_OPEN_CLAIM_NULL: |
342 | /* | |
343 | * (1) set CURRENT_FH to the file being opened, | |
344 | * creating it if necessary, (2) set open->op_cinfo, | |
345 | * (3) set open->op_truncate if the file is to be | |
346 | * truncated after opening, (4) do permission checking. | |
347 | */ | |
ca364317 BF |
348 | status = do_open_lookup(rqstp, &cstate->current_fh, |
349 | open); | |
1da177e4 LT |
350 | if (status) |
351 | goto out; | |
352 | break; | |
353 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
a525825d | 354 | open->op_stateowner->so_confirmed = 1; |
1da177e4 LT |
355 | /* |
356 | * The CURRENT_FH is already set to the file being | |
357 | * opened. (1) set open->op_cinfo, (2) set | |
358 | * open->op_truncate if the file is to be truncated | |
359 | * after opening, (3) do permission checking. | |
360 | */ | |
ca364317 BF |
361 | status = do_open_fhandle(rqstp, &cstate->current_fh, |
362 | open); | |
1da177e4 LT |
363 | if (status) |
364 | goto out; | |
365 | break; | |
1da177e4 | 366 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
a525825d | 367 | open->op_stateowner->so_confirmed = 1; |
2fdada03 | 368 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
1da177e4 LT |
369 | open->op_claim_type); |
370 | status = nfserr_notsupp; | |
371 | goto out; | |
372 | default: | |
2fdada03 | 373 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
1da177e4 LT |
374 | open->op_claim_type); |
375 | status = nfserr_inval; | |
376 | goto out; | |
377 | } | |
378 | /* | |
379 | * nfsd4_process_open2() does the actual opening of the file. If | |
380 | * successful, it (1) truncates the file if open->op_truncate was | |
381 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
382 | */ | |
ca364317 | 383 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
1da177e4 | 384 | out: |
f2327d9a | 385 | if (open->op_stateowner) { |
1da177e4 | 386 | nfs4_get_stateowner(open->op_stateowner); |
a4f1706a | 387 | cstate->replay_owner = open->op_stateowner; |
f2327d9a | 388 | } |
1da177e4 LT |
389 | nfs4_unlock_state(); |
390 | return status; | |
391 | } | |
392 | ||
393 | /* | |
394 | * filehandle-manipulating ops. | |
395 | */ | |
7191155b | 396 | static __be32 |
b591480b BF |
397 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
398 | struct svc_fh **getfh) | |
1da177e4 | 399 | { |
ca364317 | 400 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
401 | return nfserr_nofilehandle; |
402 | ||
ca364317 | 403 | *getfh = &cstate->current_fh; |
1da177e4 LT |
404 | return nfs_ok; |
405 | } | |
406 | ||
7191155b | 407 | static __be32 |
ca364317 BF |
408 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
409 | struct nfsd4_putfh *putfh) | |
1da177e4 | 410 | { |
ca364317 BF |
411 | fh_put(&cstate->current_fh); |
412 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; | |
413 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, | |
414 | putfh->pf_fhlen); | |
68d93184 | 415 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
1da177e4 LT |
416 | } |
417 | ||
7191155b | 418 | static __be32 |
b591480b BF |
419 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
420 | void *arg) | |
1da177e4 | 421 | { |
b37ad28b | 422 | __be32 status; |
1da177e4 | 423 | |
ca364317 | 424 | fh_put(&cstate->current_fh); |
df547efb | 425 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
1da177e4 LT |
426 | return status; |
427 | } | |
428 | ||
7191155b | 429 | static __be32 |
b591480b BF |
430 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
431 | void *arg) | |
1da177e4 | 432 | { |
ca364317 | 433 | if (!cstate->save_fh.fh_dentry) |
1da177e4 LT |
434 | return nfserr_restorefh; |
435 | ||
ca364317 | 436 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
1da177e4 LT |
437 | return nfs_ok; |
438 | } | |
439 | ||
7191155b | 440 | static __be32 |
b591480b BF |
441 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
442 | void *arg) | |
1da177e4 | 443 | { |
ca364317 | 444 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
445 | return nfserr_nofilehandle; |
446 | ||
ca364317 | 447 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
1da177e4 LT |
448 | return nfs_ok; |
449 | } | |
450 | ||
451 | /* | |
452 | * misc nfsv4 ops | |
453 | */ | |
7191155b | 454 | static __be32 |
ca364317 BF |
455 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
456 | struct nfsd4_access *access) | |
1da177e4 LT |
457 | { |
458 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) | |
459 | return nfserr_inval; | |
460 | ||
461 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
462 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
463 | &access->ac_supported); | |
1da177e4 LT |
464 | } |
465 | ||
7191155b | 466 | static __be32 |
ca364317 BF |
467 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
468 | struct nfsd4_commit *commit) | |
1da177e4 | 469 | { |
b37ad28b | 470 | __be32 status; |
1da177e4 LT |
471 | |
472 | u32 *p = (u32 *)commit->co_verf.data; | |
473 | *p++ = nfssvc_boot.tv_sec; | |
474 | *p++ = nfssvc_boot.tv_usec; | |
475 | ||
ca364317 BF |
476 | status = nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
477 | commit->co_count); | |
1da177e4 LT |
478 | if (status == nfserr_symlink) |
479 | status = nfserr_inval; | |
480 | return status; | |
481 | } | |
482 | ||
b37ad28b | 483 | static __be32 |
ca364317 BF |
484 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
485 | struct nfsd4_create *create) | |
1da177e4 LT |
486 | { |
487 | struct svc_fh resfh; | |
b37ad28b | 488 | __be32 status; |
1da177e4 LT |
489 | dev_t rdev; |
490 | ||
491 | fh_init(&resfh, NFS4_FHSIZE); | |
492 | ||
8837abca MS |
493 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
494 | NFSD_MAY_CREATE); | |
1da177e4 LT |
495 | if (status == nfserr_symlink) |
496 | status = nfserr_notdir; | |
497 | if (status) | |
498 | return status; | |
499 | ||
3c8e0316 YZ |
500 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
501 | nfsd_attrmask); | |
502 | if (status) | |
503 | return status; | |
504 | ||
1da177e4 LT |
505 | switch (create->cr_type) { |
506 | case NF4LNK: | |
507 | /* ugh! we have to null-terminate the linktext, or | |
508 | * vfs_symlink() will choke. it is always safe to | |
509 | * null-terminate by brute force, since at worst we | |
510 | * will overwrite the first byte of the create namelen | |
511 | * in the XDR buffer, which has already been extracted | |
512 | * during XDR decode. | |
513 | */ | |
514 | create->cr_linkname[create->cr_linklen] = 0; | |
515 | ||
ca364317 BF |
516 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
517 | create->cr_name, create->cr_namelen, | |
518 | create->cr_linkname, create->cr_linklen, | |
519 | &resfh, &create->cr_iattr); | |
1da177e4 LT |
520 | break; |
521 | ||
522 | case NF4BLK: | |
523 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
524 | if (MAJOR(rdev) != create->cr_specdata1 || | |
525 | MINOR(rdev) != create->cr_specdata2) | |
526 | return nfserr_inval; | |
ca364317 BF |
527 | status = nfsd_create(rqstp, &cstate->current_fh, |
528 | create->cr_name, create->cr_namelen, | |
529 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
530 | break; |
531 | ||
532 | case NF4CHR: | |
533 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
534 | if (MAJOR(rdev) != create->cr_specdata1 || | |
535 | MINOR(rdev) != create->cr_specdata2) | |
536 | return nfserr_inval; | |
ca364317 BF |
537 | status = nfsd_create(rqstp, &cstate->current_fh, |
538 | create->cr_name, create->cr_namelen, | |
539 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
540 | break; |
541 | ||
542 | case NF4SOCK: | |
ca364317 BF |
543 | status = nfsd_create(rqstp, &cstate->current_fh, |
544 | create->cr_name, create->cr_namelen, | |
545 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
546 | break; |
547 | ||
548 | case NF4FIFO: | |
ca364317 BF |
549 | status = nfsd_create(rqstp, &cstate->current_fh, |
550 | create->cr_name, create->cr_namelen, | |
551 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
552 | break; |
553 | ||
554 | case NF4DIR: | |
555 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
556 | status = nfsd_create(rqstp, &cstate->current_fh, |
557 | create->cr_name, create->cr_namelen, | |
558 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
559 | break; |
560 | ||
561 | default: | |
562 | status = nfserr_badtype; | |
563 | } | |
564 | ||
9208faf2 YZ |
565 | if (status) |
566 | goto out; | |
1da177e4 | 567 | |
9208faf2 YZ |
568 | if (create->cr_acl != NULL) |
569 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
570 | create->cr_bmval); | |
571 | ||
572 | fh_unlock(&cstate->current_fh); | |
573 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
574 | fh_dup2(&cstate->current_fh, &resfh); | |
575 | out: | |
1da177e4 LT |
576 | fh_put(&resfh); |
577 | return status; | |
578 | } | |
579 | ||
7191155b | 580 | static __be32 |
ca364317 BF |
581 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
582 | struct nfsd4_getattr *getattr) | |
1da177e4 | 583 | { |
b37ad28b | 584 | __be32 status; |
1da177e4 | 585 | |
8837abca | 586 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
587 | if (status) |
588 | return status; | |
589 | ||
590 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
591 | return nfserr_inval; | |
592 | ||
7e705706 AA |
593 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
594 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
595 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 596 | |
ca364317 | 597 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
598 | return nfs_ok; |
599 | } | |
600 | ||
7191155b | 601 | static __be32 |
ca364317 BF |
602 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
603 | struct nfsd4_link *link) | |
1da177e4 | 604 | { |
b37ad28b | 605 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 606 | |
ca364317 | 607 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 608 | return status; |
ca364317 BF |
609 | status = nfsd_link(rqstp, &cstate->current_fh, |
610 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 611 | if (!status) |
ca364317 | 612 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
613 | return status; |
614 | } | |
615 | ||
0ff7ab46 | 616 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
617 | { |
618 | struct svc_fh tmp_fh; | |
b37ad28b | 619 | __be32 ret; |
1da177e4 LT |
620 | |
621 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
622 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
623 | if (ret) | |
1da177e4 | 624 | return ret; |
0ff7ab46 | 625 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
626 | fh_put(&tmp_fh); |
627 | return nfserr_noent; | |
628 | } | |
629 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
630 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
631 | } | |
632 | ||
633 | static __be32 | |
634 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
635 | void *arg) | |
636 | { | |
637 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
638 | } |
639 | ||
7191155b | 640 | static __be32 |
ca364317 BF |
641 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
642 | struct nfsd4_lookup *lookup) | |
1da177e4 | 643 | { |
ca364317 BF |
644 | return nfsd_lookup(rqstp, &cstate->current_fh, |
645 | lookup->lo_name, lookup->lo_len, | |
646 | &cstate->current_fh); | |
1da177e4 LT |
647 | } |
648 | ||
7191155b | 649 | static __be32 |
ca364317 BF |
650 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
651 | struct nfsd4_read *read) | |
1da177e4 | 652 | { |
b37ad28b | 653 | __be32 status; |
1da177e4 LT |
654 | |
655 | /* no need to check permission - this will be done in nfsd_read() */ | |
656 | ||
7e06b7f9 | 657 | read->rd_filp = NULL; |
1da177e4 LT |
658 | if (read->rd_offset >= OFFSET_MAX) |
659 | return nfserr_inval; | |
660 | ||
661 | nfs4_lock_state(); | |
662 | /* check stateid */ | |
dd453dfd BH |
663 | if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid, |
664 | RD_STATE, &read->rd_filp))) { | |
1da177e4 LT |
665 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
666 | goto out; | |
667 | } | |
7e06b7f9 N |
668 | if (read->rd_filp) |
669 | get_file(read->rd_filp); | |
1da177e4 LT |
670 | status = nfs_ok; |
671 | out: | |
672 | nfs4_unlock_state(); | |
673 | read->rd_rqstp = rqstp; | |
ca364317 | 674 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
675 | return status; |
676 | } | |
677 | ||
7191155b | 678 | static __be32 |
ca364317 BF |
679 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
680 | struct nfsd4_readdir *readdir) | |
1da177e4 LT |
681 | { |
682 | u64 cookie = readdir->rd_cookie; | |
683 | static const nfs4_verifier zeroverf; | |
684 | ||
685 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
686 | ||
687 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
688 | return nfserr_inval; | |
689 | ||
7e705706 AA |
690 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
691 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
692 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 LT |
693 | |
694 | if ((cookie > ~(u32)0) || (cookie == 1) || (cookie == 2) || | |
695 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) | |
696 | return nfserr_bad_cookie; | |
697 | ||
698 | readdir->rd_rqstp = rqstp; | |
ca364317 | 699 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
700 | return nfs_ok; |
701 | } | |
702 | ||
7191155b | 703 | static __be32 |
ca364317 BF |
704 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
705 | struct nfsd4_readlink *readlink) | |
1da177e4 LT |
706 | { |
707 | readlink->rl_rqstp = rqstp; | |
ca364317 | 708 | readlink->rl_fhp = &cstate->current_fh; |
1da177e4 LT |
709 | return nfs_ok; |
710 | } | |
711 | ||
7191155b | 712 | static __be32 |
ca364317 BF |
713 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
714 | struct nfsd4_remove *remove) | |
1da177e4 | 715 | { |
b37ad28b | 716 | __be32 status; |
1da177e4 | 717 | |
af558e33 | 718 | if (locks_in_grace()) |
c815afc7 | 719 | return nfserr_grace; |
ca364317 BF |
720 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
721 | remove->rm_name, remove->rm_namelen); | |
1da177e4 LT |
722 | if (status == nfserr_symlink) |
723 | return nfserr_notdir; | |
724 | if (!status) { | |
ca364317 BF |
725 | fh_unlock(&cstate->current_fh); |
726 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
727 | } |
728 | return status; | |
729 | } | |
730 | ||
7191155b | 731 | static __be32 |
ca364317 BF |
732 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
733 | struct nfsd4_rename *rename) | |
1da177e4 | 734 | { |
b37ad28b | 735 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 736 | |
ca364317 | 737 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 738 | return status; |
af558e33 | 739 | if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags |
c815afc7 N |
740 | & NFSEXP_NOSUBTREECHECK)) |
741 | return nfserr_grace; | |
ca364317 BF |
742 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
743 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 LT |
744 | rename->rn_tname, rename->rn_tnamelen); |
745 | ||
746 | /* the underlying filesystem returns different error's than required | |
747 | * by NFSv4. both save_fh and current_fh have been verified.. */ | |
748 | if (status == nfserr_isdir) | |
749 | status = nfserr_exist; | |
750 | else if ((status == nfserr_notdir) && | |
ca364317 BF |
751 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
752 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) | |
1da177e4 LT |
753 | status = nfserr_exist; |
754 | else if (status == nfserr_symlink) | |
755 | status = nfserr_notdir; | |
756 | ||
757 | if (!status) { | |
ca364317 BF |
758 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
759 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
1da177e4 LT |
760 | } |
761 | return status; | |
762 | } | |
763 | ||
dcb488a3 AA |
764 | static __be32 |
765 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
766 | struct nfsd4_secinfo *secinfo) | |
767 | { | |
768 | struct svc_fh resfh; | |
769 | struct svc_export *exp; | |
770 | struct dentry *dentry; | |
771 | __be32 err; | |
772 | ||
773 | fh_init(&resfh, NFS4_FHSIZE); | |
29a78a3e BF |
774 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
775 | if (err) | |
776 | return err; | |
dcb488a3 AA |
777 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
778 | secinfo->si_name, secinfo->si_namelen, | |
779 | &exp, &dentry); | |
780 | if (err) | |
781 | return err; | |
782 | if (dentry->d_inode == NULL) { | |
783 | exp_put(exp); | |
784 | err = nfserr_noent; | |
785 | } else | |
786 | secinfo->si_exp = exp; | |
787 | dput(dentry); | |
56560b9a BF |
788 | if (cstate->minorversion) |
789 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
790 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
791 | return err; |
792 | } | |
793 | ||
04f4ad16 BF |
794 | static __be32 |
795 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
796 | struct nfsd4_secinfo_no_name *sin) | |
797 | { | |
798 | __be32 err; | |
799 | ||
800 | switch (sin->sin_style) { | |
801 | case NFS4_SECINFO_STYLE4_CURRENT_FH: | |
802 | break; | |
803 | case NFS4_SECINFO_STYLE4_PARENT: | |
804 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
805 | if (err) | |
806 | return err; | |
807 | break; | |
808 | default: | |
809 | return nfserr_inval; | |
810 | } | |
811 | exp_get(cstate->current_fh.fh_export); | |
812 | sin->sin_exp = cstate->current_fh.fh_export; | |
813 | fh_put(&cstate->current_fh); | |
814 | return nfs_ok; | |
815 | } | |
816 | ||
7191155b | 817 | static __be32 |
ca364317 BF |
818 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
819 | struct nfsd4_setattr *setattr) | |
1da177e4 | 820 | { |
b37ad28b | 821 | __be32 status = nfs_ok; |
1da177e4 | 822 | |
1da177e4 LT |
823 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
824 | nfs4_lock_state(); | |
dd453dfd | 825 | status = nfs4_preprocess_stateid_op(cstate, |
6150ef0d | 826 | &setattr->sa_stateid, WR_STATE, NULL); |
1da177e4 | 827 | nfs4_unlock_state(); |
375c5547 | 828 | if (status) { |
3e3b4800 | 829 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
830 | return status; |
831 | } | |
1da177e4 | 832 | } |
18f335af DH |
833 | status = mnt_want_write(cstate->current_fh.fh_export->ex_path.mnt); |
834 | if (status) | |
835 | return status; | |
1da177e4 | 836 | status = nfs_ok; |
3c8e0316 YZ |
837 | |
838 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
839 | nfsd_attrmask); | |
840 | if (status) | |
841 | goto out; | |
842 | ||
1da177e4 | 843 | if (setattr->sa_acl != NULL) |
ca364317 BF |
844 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
845 | setattr->sa_acl); | |
1da177e4 | 846 | if (status) |
18f335af | 847 | goto out; |
ca364317 | 848 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 849 | 0, (time_t)0); |
18f335af DH |
850 | out: |
851 | mnt_drop_write(cstate->current_fh.fh_export->ex_path.mnt); | |
1da177e4 LT |
852 | return status; |
853 | } | |
854 | ||
7191155b | 855 | static __be32 |
ca364317 BF |
856 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
857 | struct nfsd4_write *write) | |
1da177e4 LT |
858 | { |
859 | stateid_t *stateid = &write->wr_stateid; | |
860 | struct file *filp = NULL; | |
861 | u32 *p; | |
b37ad28b | 862 | __be32 status = nfs_ok; |
31dec253 | 863 | unsigned long cnt; |
1da177e4 LT |
864 | |
865 | /* no need to check permission - this will be done in nfsd_write() */ | |
866 | ||
867 | if (write->wr_offset >= OFFSET_MAX) | |
868 | return nfserr_inval; | |
869 | ||
870 | nfs4_lock_state(); | |
dd453dfd | 871 | status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp); |
7e06b7f9 N |
872 | if (filp) |
873 | get_file(filp); | |
1da177e4 LT |
874 | nfs4_unlock_state(); |
875 | ||
375c5547 BF |
876 | if (status) { |
877 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); | |
878 | return status; | |
879 | } | |
880 | ||
31dec253 | 881 | cnt = write->wr_buflen; |
1da177e4 LT |
882 | write->wr_how_written = write->wr_stable_how; |
883 | p = (u32 *)write->wr_verifier.data; | |
884 | *p++ = nfssvc_boot.tv_sec; | |
885 | *p++ = nfssvc_boot.tv_usec; | |
886 | ||
ca364317 BF |
887 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
888 | write->wr_offset, rqstp->rq_vec, write->wr_vlen, | |
31dec253 | 889 | &cnt, &write->wr_how_written); |
7e06b7f9 N |
890 | if (filp) |
891 | fput(filp); | |
1da177e4 | 892 | |
31dec253 DS |
893 | write->wr_bytes_written = cnt; |
894 | ||
1da177e4 LT |
895 | if (status == nfserr_symlink) |
896 | status = nfserr_inval; | |
897 | return status; | |
1da177e4 LT |
898 | } |
899 | ||
900 | /* This routine never returns NFS_OK! If there are no other errors, it | |
901 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
902 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
903 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
904 | */ | |
b37ad28b | 905 | static __be32 |
c954e2a5 | 906 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 907 | struct nfsd4_verify *verify) |
1da177e4 | 908 | { |
2ebbc012 | 909 | __be32 *buf, *p; |
1da177e4 | 910 | int count; |
b37ad28b | 911 | __be32 status; |
1da177e4 | 912 | |
8837abca | 913 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
914 | if (status) |
915 | return status; | |
916 | ||
3c8e0316 YZ |
917 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
918 | if (status) | |
919 | return status; | |
920 | ||
1da177e4 LT |
921 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
922 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
923 | return nfserr_inval; | |
924 | if (verify->ve_attrlen & 3) | |
925 | return nfserr_inval; | |
926 | ||
927 | /* count in words: | |
928 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
929 | */ | |
930 | count = 4 + (verify->ve_attrlen >> 2); | |
931 | buf = kmalloc(count << 2, GFP_KERNEL); | |
932 | if (!buf) | |
933 | return nfserr_resource; | |
934 | ||
ca364317 BF |
935 | status = nfsd4_encode_fattr(&cstate->current_fh, |
936 | cstate->current_fh.fh_export, | |
937 | cstate->current_fh.fh_dentry, buf, | |
1da177e4 | 938 | &count, verify->ve_bmval, |
406a7ea9 | 939 | rqstp, 0); |
1da177e4 LT |
940 | |
941 | /* this means that nfsd4_encode_fattr() ran out of space */ | |
942 | if (status == nfserr_resource && count == 0) | |
943 | status = nfserr_not_same; | |
944 | if (status) | |
945 | goto out_kfree; | |
946 | ||
95ec28cd BH |
947 | /* skip bitmap */ |
948 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
949 | status = nfserr_not_same; |
950 | if (ntohl(*p++) != verify->ve_attrlen) | |
951 | goto out_kfree; | |
952 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
953 | status = nfserr_same; | |
954 | ||
955 | out_kfree: | |
956 | kfree(buf); | |
957 | return status; | |
958 | } | |
959 | ||
c954e2a5 BF |
960 | static __be32 |
961 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
962 | struct nfsd4_verify *verify) | |
963 | { | |
964 | __be32 status; | |
965 | ||
966 | status = _nfsd4_verify(rqstp, cstate, verify); | |
967 | return status == nfserr_not_same ? nfs_ok : status; | |
968 | } | |
969 | ||
970 | static __be32 | |
971 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
972 | struct nfsd4_verify *verify) | |
973 | { | |
974 | __be32 status; | |
975 | ||
976 | status = _nfsd4_verify(rqstp, cstate, verify); | |
977 | return status == nfserr_same ? nfs_ok : status; | |
978 | } | |
979 | ||
1da177e4 LT |
980 | /* |
981 | * NULL call. | |
982 | */ | |
7111c66e | 983 | static __be32 |
1da177e4 LT |
984 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
985 | { | |
986 | return nfs_ok; | |
987 | } | |
988 | ||
e2b20950 SA |
989 | static inline void nfsd4_increment_op_stats(u32 opnum) |
990 | { | |
991 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
992 | nfsdstats.nfs4_opcount[opnum]++; | |
993 | } | |
994 | ||
b591480b BF |
995 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
996 | void *); | |
f9bb94c4 AA |
997 | enum nfsd4_op_flags { |
998 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ | |
5ece3caf MJ |
999 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
1000 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ | |
68d93184 BF |
1001 | /* For rfc 5661 section 2.6.3.1.1: */ |
1002 | OP_HANDLES_WRONGSEC = 1 << 3, | |
1003 | OP_IS_PUTFH_LIKE = 1 << 4, | |
f9bb94c4 | 1004 | }; |
b591480b BF |
1005 | |
1006 | struct nfsd4_operation { | |
1007 | nfsd4op_func op_func; | |
1008 | u32 op_flags; | |
b001a1b6 | 1009 | char *op_name; |
1091006c BF |
1010 | /* |
1011 | * We use the DRC for compounds containing non-idempotent | |
1012 | * operations, *except* those that are 4.1-specific (since | |
1013 | * sessions provide their own EOS), and except for stateful | |
1014 | * operations other than setclientid and setclientid_confirm | |
1015 | * (since sequence numbers provide EOS for open, lock, etc in | |
1016 | * the v4.0 case). | |
1017 | */ | |
1018 | bool op_cacheresult; | |
b591480b BF |
1019 | }; |
1020 | ||
1021 | static struct nfsd4_operation nfsd4_ops[]; | |
1022 | ||
f1c7f79b | 1023 | static const char *nfsd4_op_name(unsigned opnum); |
b001a1b6 | 1024 | |
f9bb94c4 | 1025 | /* |
57716355 | 1026 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1027 | * |
57716355 BF |
1028 | * Also note, enforced elsewhere: |
1029 | * - SEQUENCE other than as first op results in | |
1030 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1031 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1032 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1033 | * - DESTROY_SESSION must be the final operation in a compound, if |
1034 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1035 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1036 | */ |
57716355 | 1037 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1038 | { |
57716355 BF |
1039 | struct nfsd4_op *op = &args->ops[0]; |
1040 | ||
1041 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1042 | if (args->minorversion == 0) | |
1043 | return nfs_ok; | |
1044 | /* This is weird, but OK, not our problem: */ | |
1045 | if (args->opcnt == 0) | |
1046 | return nfs_ok; | |
1047 | if (op->status == nfserr_op_illegal) | |
1048 | return nfs_ok; | |
1049 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1050 | return nfserr_op_not_in_session; | |
1051 | if (op->opnum == OP_SEQUENCE) | |
1052 | return nfs_ok; | |
1053 | if (args->opcnt != 1) | |
1054 | return nfserr_not_only_op; | |
1055 | return nfs_ok; | |
f9bb94c4 AA |
1056 | } |
1057 | ||
22b03214 BF |
1058 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
1059 | { | |
1060 | return &nfsd4_ops[op->opnum]; | |
1061 | } | |
1062 | ||
1091006c BF |
1063 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1064 | { | |
1065 | return OPDESC(op)->op_cacheresult; | |
1066 | } | |
1067 | ||
68d93184 BF |
1068 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1069 | { | |
1070 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1071 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1072 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1073 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
1074 | struct nfsd4_operation *thisd; | |
1075 | struct nfsd4_operation *nextd; | |
1076 | ||
1077 | thisd = OPDESC(this); | |
1078 | /* | |
1079 | * Most ops check wronsec on our own; only the putfh-like ops | |
1080 | * have special rules. | |
1081 | */ | |
1082 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1083 | return false; | |
1084 | /* | |
1085 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1086 | * put-filehandle operation if we're not going to use the | |
1087 | * result: | |
1088 | */ | |
1089 | if (argp->opcnt == resp->opcnt) | |
1090 | return false; | |
1091 | ||
1092 | nextd = OPDESC(next); | |
1093 | /* | |
1094 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1095 | * errors themselves as necessary; others should check for them | |
1096 | * now: | |
1097 | */ | |
1098 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1099 | } | |
1100 | ||
1da177e4 LT |
1101 | /* |
1102 | * COMPOUND call. | |
1103 | */ | |
7111c66e | 1104 | static __be32 |
1da177e4 LT |
1105 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
1106 | struct nfsd4_compoundargs *args, | |
1107 | struct nfsd4_compoundres *resp) | |
1108 | { | |
1109 | struct nfsd4_op *op; | |
b591480b | 1110 | struct nfsd4_operation *opdesc; |
e354d571 | 1111 | struct nfsd4_compound_state *cstate = &resp->cstate; |
e5710199 | 1112 | int slack_bytes; |
b37ad28b | 1113 | __be32 status; |
1da177e4 | 1114 | |
1da177e4 | 1115 | resp->xbuf = &rqstp->rq_res; |
e354d571 AA |
1116 | resp->p = rqstp->rq_res.head[0].iov_base + |
1117 | rqstp->rq_res.head[0].iov_len; | |
1da177e4 LT |
1118 | resp->tagp = resp->p; |
1119 | /* reserve space for: taglen, tag, and opcnt */ | |
1120 | resp->p += 2 + XDR_QUADLEN(args->taglen); | |
1121 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; | |
1122 | resp->taglen = args->taglen; | |
1123 | resp->tag = args->tag; | |
1124 | resp->opcnt = 0; | |
1125 | resp->rqstp = rqstp; | |
d87a8ade | 1126 | resp->cstate.minorversion = args->minorversion; |
e354d571 | 1127 | resp->cstate.replay_owner = NULL; |
26c0c75e | 1128 | resp->cstate.session = NULL; |
e354d571 AA |
1129 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
1130 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1131 | /* |
1132 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1133 | * too hard to avoid non-idempotency problems. | |
1134 | */ | |
1135 | rqstp->rq_usedeferral = 0; | |
1da177e4 LT |
1136 | |
1137 | /* | |
1138 | * According to RFC3010, this takes precedence over all other errors. | |
1139 | */ | |
1140 | status = nfserr_minor_vers_mismatch; | |
8daf220a | 1141 | if (args->minorversion > nfsd_supported_minorversion) |
1da177e4 LT |
1142 | goto out; |
1143 | ||
57716355 BF |
1144 | status = nfs41_check_op_ordering(args); |
1145 | if (status) { | |
f9bb94c4 | 1146 | op = &args->ops[0]; |
57716355 | 1147 | op->status = status; |
f9bb94c4 AA |
1148 | goto encode_op; |
1149 | } | |
1150 | ||
1da177e4 LT |
1151 | while (!status && resp->opcnt < args->opcnt) { |
1152 | op = &args->ops[resp->opcnt++]; | |
1153 | ||
b001a1b6 BH |
1154 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
1155 | resp->opcnt, args->opcnt, op->opnum, | |
1156 | nfsd4_op_name(op->opnum)); | |
1da177e4 LT |
1157 | /* |
1158 | * The XDR decode routines may have pre-set op->status; | |
1159 | * for example, if there is a miscellaneous XDR error | |
1160 | * it will be set to nfserr_bad_xdr. | |
1161 | */ | |
1162 | if (op->status) | |
1163 | goto encode_op; | |
1164 | ||
1165 | /* We must be able to encode a successful response to | |
1166 | * this operation, with enough room left over to encode a | |
1167 | * failed response to the next operation. If we don't | |
1168 | * have enough room, fail with ERR_RESOURCE. | |
1169 | */ | |
e5710199 BF |
1170 | slack_bytes = (char *)resp->end - (char *)resp->p; |
1171 | if (slack_bytes < COMPOUND_SLACK_SPACE | |
1172 | + COMPOUND_ERR_SLACK_SPACE) { | |
1173 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); | |
1da177e4 LT |
1174 | op->status = nfserr_resource; |
1175 | goto encode_op; | |
1176 | } | |
1177 | ||
22b03214 | 1178 | opdesc = OPDESC(op); |
b591480b | 1179 | |
ca364317 | 1180 | if (!cstate->current_fh.fh_dentry) { |
27d630ec | 1181 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1182 | op->status = nfserr_nofilehandle; |
1183 | goto encode_op; | |
1184 | } | |
eeac294e BF |
1185 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
1186 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { | |
42ca0993 | 1187 | op->status = nfserr_moved; |
1da177e4 LT |
1188 | goto encode_op; |
1189 | } | |
b591480b BF |
1190 | |
1191 | if (opdesc->op_func) | |
1192 | op->status = opdesc->op_func(rqstp, cstate, &op->u); | |
1193 | else | |
1da177e4 | 1194 | BUG_ON(op->status == nfs_ok); |
1da177e4 | 1195 | |
68d93184 BF |
1196 | if (!op->status && need_wrongsec_check(rqstp)) |
1197 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); | |
1198 | ||
1da177e4 | 1199 | encode_op: |
49557cc7 | 1200 | /* Only from SEQUENCE */ |
da3846a2 AA |
1201 | if (resp->cstate.status == nfserr_replay_cache) { |
1202 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
abfabf8c | 1203 | status = op->status; |
da3846a2 AA |
1204 | goto out; |
1205 | } | |
a90b061c | 1206 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1207 | op->replay = &cstate->replay_owner->so_replay; |
1da177e4 LT |
1208 | nfsd4_encode_replay(resp, op); |
1209 | status = op->status = op->replay->rp_status; | |
1210 | } else { | |
1211 | nfsd4_encode_operation(resp, op); | |
1212 | status = op->status; | |
1213 | } | |
0407717d BH |
1214 | |
1215 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", | |
1216 | args->ops, args->opcnt, resp->opcnt, op->opnum, | |
1217 | be32_to_cpu(status)); | |
1218 | ||
a4f1706a BF |
1219 | if (cstate->replay_owner) { |
1220 | nfs4_put_stateowner(cstate->replay_owner); | |
1221 | cstate->replay_owner = NULL; | |
1da177e4 | 1222 | } |
7e06b7f9 N |
1223 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
1224 | if (op->opnum == OP_READ && op->u.read.rd_filp) | |
1225 | fput(op->u.read.rd_filp); | |
e2b20950 SA |
1226 | |
1227 | nfsd4_increment_op_stats(op->opnum); | |
1da177e4 LT |
1228 | } |
1229 | ||
da3846a2 | 1230 | resp->cstate.status = status; |
e354d571 AA |
1231 | fh_put(&resp->cstate.current_fh); |
1232 | fh_put(&resp->cstate.save_fh); | |
1233 | BUG_ON(resp->cstate.replay_owner); | |
1da177e4 | 1234 | out: |
2f425878 AA |
1235 | /* Reset deferral mechanism for RPC deferrals */ |
1236 | rqstp->rq_usedeferral = 1; | |
3b12cd98 | 1237 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1238 | return status; |
1239 | } | |
1240 | ||
20766016 | 1241 | static struct nfsd4_operation nfsd4_ops[] = { |
b591480b BF |
1242 | [OP_ACCESS] = { |
1243 | .op_func = (nfsd4op_func)nfsd4_access, | |
b001a1b6 | 1244 | .op_name = "OP_ACCESS", |
b591480b BF |
1245 | }, |
1246 | [OP_CLOSE] = { | |
1247 | .op_func = (nfsd4op_func)nfsd4_close, | |
b001a1b6 | 1248 | .op_name = "OP_CLOSE", |
b591480b BF |
1249 | }, |
1250 | [OP_COMMIT] = { | |
1251 | .op_func = (nfsd4op_func)nfsd4_commit, | |
b001a1b6 | 1252 | .op_name = "OP_COMMIT", |
b591480b BF |
1253 | }, |
1254 | [OP_CREATE] = { | |
1255 | .op_func = (nfsd4op_func)nfsd4_create, | |
b001a1b6 | 1256 | .op_name = "OP_CREATE", |
1091006c | 1257 | .op_cacheresult = true, |
b591480b BF |
1258 | }, |
1259 | [OP_DELEGRETURN] = { | |
1260 | .op_func = (nfsd4op_func)nfsd4_delegreturn, | |
b001a1b6 | 1261 | .op_name = "OP_DELEGRETURN", |
b591480b BF |
1262 | }, |
1263 | [OP_GETATTR] = { | |
1264 | .op_func = (nfsd4op_func)nfsd4_getattr, | |
eeac294e | 1265 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1266 | .op_name = "OP_GETATTR", |
b591480b BF |
1267 | }, |
1268 | [OP_GETFH] = { | |
1269 | .op_func = (nfsd4op_func)nfsd4_getfh, | |
b001a1b6 | 1270 | .op_name = "OP_GETFH", |
b591480b BF |
1271 | }, |
1272 | [OP_LINK] = { | |
1273 | .op_func = (nfsd4op_func)nfsd4_link, | |
b001a1b6 | 1274 | .op_name = "OP_LINK", |
1091006c | 1275 | .op_cacheresult = true, |
b591480b BF |
1276 | }, |
1277 | [OP_LOCK] = { | |
1278 | .op_func = (nfsd4op_func)nfsd4_lock, | |
b001a1b6 | 1279 | .op_name = "OP_LOCK", |
b591480b BF |
1280 | }, |
1281 | [OP_LOCKT] = { | |
1282 | .op_func = (nfsd4op_func)nfsd4_lockt, | |
b001a1b6 | 1283 | .op_name = "OP_LOCKT", |
b591480b BF |
1284 | }, |
1285 | [OP_LOCKU] = { | |
1286 | .op_func = (nfsd4op_func)nfsd4_locku, | |
b001a1b6 | 1287 | .op_name = "OP_LOCKU", |
b591480b BF |
1288 | }, |
1289 | [OP_LOOKUP] = { | |
1290 | .op_func = (nfsd4op_func)nfsd4_lookup, | |
68d93184 | 1291 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1292 | .op_name = "OP_LOOKUP", |
b591480b BF |
1293 | }, |
1294 | [OP_LOOKUPP] = { | |
1295 | .op_func = (nfsd4op_func)nfsd4_lookupp, | |
68d93184 | 1296 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1297 | .op_name = "OP_LOOKUPP", |
b591480b BF |
1298 | }, |
1299 | [OP_NVERIFY] = { | |
1300 | .op_func = (nfsd4op_func)nfsd4_nverify, | |
b001a1b6 | 1301 | .op_name = "OP_NVERIFY", |
b591480b BF |
1302 | }, |
1303 | [OP_OPEN] = { | |
1304 | .op_func = (nfsd4op_func)nfsd4_open, | |
68d93184 | 1305 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1306 | .op_name = "OP_OPEN", |
b591480b BF |
1307 | }, |
1308 | [OP_OPEN_CONFIRM] = { | |
1309 | .op_func = (nfsd4op_func)nfsd4_open_confirm, | |
b001a1b6 | 1310 | .op_name = "OP_OPEN_CONFIRM", |
b591480b BF |
1311 | }, |
1312 | [OP_OPEN_DOWNGRADE] = { | |
1313 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, | |
b001a1b6 | 1314 | .op_name = "OP_OPEN_DOWNGRADE", |
b591480b BF |
1315 | }, |
1316 | [OP_PUTFH] = { | |
1317 | .op_func = (nfsd4op_func)nfsd4_putfh, | |
68d93184 BF |
1318 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1319 | | OP_IS_PUTFH_LIKE, | |
b001a1b6 | 1320 | .op_name = "OP_PUTFH", |
b591480b | 1321 | }, |
eeac294e | 1322 | [OP_PUTPUBFH] = { |
a1c8c4d1 | 1323 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
68d93184 BF |
1324 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1325 | | OP_IS_PUTFH_LIKE, | |
b001a1b6 | 1326 | .op_name = "OP_PUTPUBFH", |
eeac294e | 1327 | }, |
b591480b BF |
1328 | [OP_PUTROOTFH] = { |
1329 | .op_func = (nfsd4op_func)nfsd4_putrootfh, | |
68d93184 BF |
1330 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1331 | | OP_IS_PUTFH_LIKE, | |
b001a1b6 | 1332 | .op_name = "OP_PUTROOTFH", |
b591480b BF |
1333 | }, |
1334 | [OP_READ] = { | |
1335 | .op_func = (nfsd4op_func)nfsd4_read, | |
b001a1b6 | 1336 | .op_name = "OP_READ", |
b591480b BF |
1337 | }, |
1338 | [OP_READDIR] = { | |
1339 | .op_func = (nfsd4op_func)nfsd4_readdir, | |
b001a1b6 | 1340 | .op_name = "OP_READDIR", |
b591480b BF |
1341 | }, |
1342 | [OP_READLINK] = { | |
1343 | .op_func = (nfsd4op_func)nfsd4_readlink, | |
b001a1b6 | 1344 | .op_name = "OP_READLINK", |
b591480b BF |
1345 | }, |
1346 | [OP_REMOVE] = { | |
1347 | .op_func = (nfsd4op_func)nfsd4_remove, | |
b001a1b6 | 1348 | .op_name = "OP_REMOVE", |
1091006c | 1349 | .op_cacheresult = true, |
b591480b BF |
1350 | }, |
1351 | [OP_RENAME] = { | |
b001a1b6 | 1352 | .op_name = "OP_RENAME", |
b591480b | 1353 | .op_func = (nfsd4op_func)nfsd4_rename, |
1091006c | 1354 | .op_cacheresult = true, |
b591480b BF |
1355 | }, |
1356 | [OP_RENEW] = { | |
1357 | .op_func = (nfsd4op_func)nfsd4_renew, | |
27d630ec | 1358 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1359 | .op_name = "OP_RENEW", |
b591480b BF |
1360 | }, |
1361 | [OP_RESTOREFH] = { | |
1362 | .op_func = (nfsd4op_func)nfsd4_restorefh, | |
68d93184 BF |
1363 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1364 | | OP_IS_PUTFH_LIKE, | |
b001a1b6 | 1365 | .op_name = "OP_RESTOREFH", |
b591480b BF |
1366 | }, |
1367 | [OP_SAVEFH] = { | |
1368 | .op_func = (nfsd4op_func)nfsd4_savefh, | |
68d93184 | 1369 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1370 | .op_name = "OP_SAVEFH", |
b591480b | 1371 | }, |
dcb488a3 AA |
1372 | [OP_SECINFO] = { |
1373 | .op_func = (nfsd4op_func)nfsd4_secinfo, | |
68d93184 | 1374 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1375 | .op_name = "OP_SECINFO", |
dcb488a3 | 1376 | }, |
b591480b BF |
1377 | [OP_SETATTR] = { |
1378 | .op_func = (nfsd4op_func)nfsd4_setattr, | |
b001a1b6 | 1379 | .op_name = "OP_SETATTR", |
1091006c | 1380 | .op_cacheresult = true, |
b591480b BF |
1381 | }, |
1382 | [OP_SETCLIENTID] = { | |
1383 | .op_func = (nfsd4op_func)nfsd4_setclientid, | |
27d630ec | 1384 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1385 | .op_name = "OP_SETCLIENTID", |
1091006c | 1386 | .op_cacheresult = true, |
b591480b BF |
1387 | }, |
1388 | [OP_SETCLIENTID_CONFIRM] = { | |
1389 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, | |
27d630ec | 1390 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1391 | .op_name = "OP_SETCLIENTID_CONFIRM", |
1091006c | 1392 | .op_cacheresult = true, |
b591480b BF |
1393 | }, |
1394 | [OP_VERIFY] = { | |
1395 | .op_func = (nfsd4op_func)nfsd4_verify, | |
b001a1b6 | 1396 | .op_name = "OP_VERIFY", |
b591480b BF |
1397 | }, |
1398 | [OP_WRITE] = { | |
1399 | .op_func = (nfsd4op_func)nfsd4_write, | |
b001a1b6 | 1400 | .op_name = "OP_WRITE", |
1091006c | 1401 | .op_cacheresult = true, |
b591480b BF |
1402 | }, |
1403 | [OP_RELEASE_LOCKOWNER] = { | |
1404 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, | |
27d630ec | 1405 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1406 | .op_name = "OP_RELEASE_LOCKOWNER", |
b591480b | 1407 | }, |
069b6ad4 AA |
1408 | |
1409 | /* NFSv4.1 operations */ | |
1410 | [OP_EXCHANGE_ID] = { | |
1411 | .op_func = (nfsd4op_func)nfsd4_exchange_id, | |
f9bb94c4 | 1412 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1413 | .op_name = "OP_EXCHANGE_ID", |
1414 | }, | |
1d1bc8f2 BF |
1415 | [OP_BIND_CONN_TO_SESSION] = { |
1416 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, | |
1417 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, | |
1418 | .op_name = "OP_BIND_CONN_TO_SESSION", | |
1419 | }, | |
069b6ad4 AA |
1420 | [OP_CREATE_SESSION] = { |
1421 | .op_func = (nfsd4op_func)nfsd4_create_session, | |
f9bb94c4 | 1422 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1423 | .op_name = "OP_CREATE_SESSION", |
1424 | }, | |
1425 | [OP_DESTROY_SESSION] = { | |
1426 | .op_func = (nfsd4op_func)nfsd4_destroy_session, | |
f9bb94c4 | 1427 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1428 | .op_name = "OP_DESTROY_SESSION", |
1429 | }, | |
1430 | [OP_SEQUENCE] = { | |
1431 | .op_func = (nfsd4op_func)nfsd4_sequence, | |
f9bb94c4 | 1432 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1433 | .op_name = "OP_SEQUENCE", |
1434 | }, | |
094b5d74 BH |
1435 | [OP_DESTROY_CLIENTID] = { |
1436 | .op_func = NULL, | |
1437 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, | |
1438 | .op_name = "OP_DESTROY_CLIENTID", | |
1439 | }, | |
4dc6ec00 BF |
1440 | [OP_RECLAIM_COMPLETE] = { |
1441 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, | |
1442 | .op_flags = ALLOWED_WITHOUT_FH, | |
1443 | .op_name = "OP_RECLAIM_COMPLETE", | |
1444 | }, | |
04f4ad16 BF |
1445 | [OP_SECINFO_NO_NAME] = { |
1446 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, | |
68d93184 | 1447 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 BF |
1448 | .op_name = "OP_SECINFO_NO_NAME", |
1449 | }, | |
17456804 BS |
1450 | [OP_TEST_STATEID] = { |
1451 | .op_func = (nfsd4op_func)nfsd4_test_stateid, | |
1452 | .op_flags = ALLOWED_WITHOUT_FH, | |
1453 | .op_name = "OP_TEST_STATEID", | |
1454 | }, | |
e1ca12df BS |
1455 | [OP_FREE_STATEID] = { |
1456 | .op_func = (nfsd4op_func)nfsd4_free_stateid, | |
1457 | .op_flags = ALLOWED_WITHOUT_FH, | |
1458 | .op_name = "OP_FREE_STATEID", | |
1459 | }, | |
b591480b BF |
1460 | }; |
1461 | ||
f1c7f79b | 1462 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
1463 | { |
1464 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
1465 | return nfsd4_ops[opnum].op_name; | |
1466 | return "unknown_operation"; | |
1467 | } | |
1468 | ||
1da177e4 | 1469 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
1470 | struct nfsd4_voidargs { int dummy; }; |
1471 | ||
1da177e4 | 1472 | static struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f YZ |
1473 | [NFSPROC4_NULL] = { |
1474 | .pc_func = (svc_procfunc) nfsd4_proc_null, | |
1475 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, | |
1476 | .pc_argsize = sizeof(struct nfsd4_voidargs), | |
1477 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
1478 | .pc_cachetype = RC_NOCACHE, | |
1479 | .pc_xdrressize = 1, | |
1480 | }, | |
1481 | [NFSPROC4_COMPOUND] = { | |
1482 | .pc_func = (svc_procfunc) nfsd4_proc_compound, | |
1483 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, | |
1484 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, | |
1485 | .pc_argsize = sizeof(struct nfsd4_compoundargs), | |
1486 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 1487 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
1488 | .pc_cachetype = RC_NOCACHE, |
1489 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
1490 | }, | |
1da177e4 LT |
1491 | }; |
1492 | ||
1493 | struct svc_version nfsd_version4 = { | |
1494 | .vs_vers = 4, | |
1495 | .vs_nproc = 2, | |
1496 | .vs_proc = nfsd_procedures4, | |
1497 | .vs_dispatch = nfsd_dispatch, | |
1498 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
1499 | }; | |
1500 | ||
1501 | /* | |
1502 | * Local variables: | |
1503 | * c-basic-offset: 8 | |
1504 | * End: | |
1505 | */ |