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 | |
58e7b33a | 38 | #include "idmap.h" |
9a74af21 BH |
39 | #include "cache.h" |
40 | #include "xdr4.h" | |
0a3adade | 41 | #include "vfs.h" |
8b70484c | 42 | #include "current_stateid.h" |
1da177e4 LT |
43 | |
44 | #define NFSDDBG_FACILITY NFSDDBG_PROC | |
45 | ||
3c8e0316 YZ |
46 | static u32 nfsd_attrmask[] = { |
47 | NFSD_WRITEABLE_ATTRS_WORD0, | |
48 | NFSD_WRITEABLE_ATTRS_WORD1, | |
49 | NFSD_WRITEABLE_ATTRS_WORD2 | |
50 | }; | |
51 | ||
52 | static u32 nfsd41_ex_attrmask[] = { | |
53 | NFSD_SUPPATTR_EXCLCREAT_WORD0, | |
54 | NFSD_SUPPATTR_EXCLCREAT_WORD1, | |
55 | NFSD_SUPPATTR_EXCLCREAT_WORD2 | |
56 | }; | |
57 | ||
58 | static __be32 | |
59 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
60 | u32 *bmval, u32 *writable) | |
61 | { | |
62 | struct dentry *dentry = cstate->current_fh.fh_dentry; | |
3c8e0316 YZ |
63 | |
64 | /* | |
65 | * Check about attributes are supported by the NFSv4 server or not. | |
66 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. | |
67 | */ | |
68 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || | |
69 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || | |
70 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) | |
71 | return nfserr_attrnotsupp; | |
72 | ||
73 | /* | |
a06b1261 | 74 | * Check FATTR4_WORD0_ACL can be supported |
3c8e0316 YZ |
75 | * in current environment or not. |
76 | */ | |
77 | if (bmval[0] & FATTR4_WORD0_ACL) { | |
78 | if (!IS_POSIXACL(dentry->d_inode)) | |
79 | return nfserr_attrnotsupp; | |
80 | } | |
3c8e0316 YZ |
81 | |
82 | /* | |
83 | * According to spec, read-only attributes return ERR_INVAL. | |
84 | */ | |
85 | if (writable) { | |
86 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || | |
87 | (bmval[2] & ~writable[2])) | |
88 | return nfserr_inval; | |
89 | } | |
90 | ||
91 | return nfs_ok; | |
92 | } | |
93 | ||
94 | static __be32 | |
95 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, | |
96 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) | |
97 | { | |
98 | __be32 status = nfs_ok; | |
99 | ||
100 | if (open->op_create == NFS4_OPEN_CREATE) { | |
101 | if (open->op_createmode == NFS4_CREATE_UNCHECKED | |
102 | || open->op_createmode == NFS4_CREATE_GUARDED) | |
103 | status = check_attr_support(rqstp, cstate, | |
104 | open->op_bmval, nfsd_attrmask); | |
105 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) | |
106 | status = check_attr_support(rqstp, cstate, | |
107 | open->op_bmval, nfsd41_ex_attrmask); | |
108 | } | |
109 | ||
110 | return status; | |
111 | } | |
112 | ||
9208faf2 YZ |
113 | static int |
114 | is_create_with_attrs(struct nfsd4_open *open) | |
115 | { | |
116 | return open->op_create == NFS4_OPEN_CREATE | |
117 | && (open->op_createmode == NFS4_CREATE_UNCHECKED | |
118 | || open->op_createmode == NFS4_CREATE_GUARDED | |
119 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); | |
120 | } | |
121 | ||
122 | /* | |
123 | * if error occurs when setting the acl, just clear the acl bit | |
124 | * in the returned attr bitmap. | |
125 | */ | |
126 | static void | |
127 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, | |
128 | struct nfs4_acl *acl, u32 *bmval) | |
129 | { | |
130 | __be32 status; | |
131 | ||
132 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); | |
133 | if (status) | |
134 | /* | |
135 | * We should probably fail the whole open at this point, | |
136 | * but we've already created the file, so it's too late; | |
137 | * So this seems the least of evils: | |
138 | */ | |
139 | bmval[0] &= ~FATTR4_WORD0_ACL; | |
140 | } | |
141 | ||
1da177e4 LT |
142 | static inline void |
143 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) | |
144 | { | |
145 | fh_put(dst); | |
146 | dget(src->fh_dentry); | |
147 | if (src->fh_export) | |
148 | cache_get(&src->fh_export->h); | |
149 | *dst = *src; | |
150 | } | |
151 | ||
b37ad28b | 152 | static __be32 |
dc730e17 | 153 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
1da177e4 | 154 | { |
b37ad28b | 155 | __be32 status; |
1da177e4 LT |
156 | |
157 | if (open->op_truncate && | |
158 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) | |
159 | return nfserr_inval; | |
160 | ||
a043226b BF |
161 | accmode |= NFSD_MAY_READ_IF_EXEC; |
162 | ||
1da177e4 | 163 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
8837abca | 164 | accmode |= NFSD_MAY_READ; |
9801d8a3 | 165 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
8837abca | 166 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
57ecb34f | 167 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
8837abca | 168 | accmode |= NFSD_MAY_WRITE; |
1da177e4 LT |
169 | |
170 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); | |
171 | ||
172 | return status; | |
173 | } | |
174 | ||
aadab6c6 BF |
175 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
176 | { | |
177 | umode_t mode = fh->fh_dentry->d_inode->i_mode; | |
178 | ||
179 | if (S_ISREG(mode)) | |
180 | return nfs_ok; | |
181 | if (S_ISDIR(mode)) | |
182 | return nfserr_isdir; | |
183 | /* | |
184 | * Using err_symlink as our catch-all case may look odd; but | |
185 | * there's no other obvious error for this case in 4.0, and we | |
186 | * happen to know that it will cause the linux v4 client to do | |
187 | * the right thing on attempts to open something other than a | |
188 | * regular file. | |
189 | */ | |
190 | return nfserr_symlink; | |
191 | } | |
192 | ||
b37ad28b | 193 | static __be32 |
1da177e4 LT |
194 | do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
195 | { | |
196 | struct svc_fh resfh; | |
b37ad28b | 197 | __be32 status; |
1da177e4 LT |
198 | |
199 | fh_init(&resfh, NFS4_FHSIZE); | |
200 | open->op_truncate = 0; | |
201 | ||
202 | if (open->op_create) { | |
79fb54ab BH |
203 | /* FIXME: check session persistence and pnfs flags. |
204 | * The nfsv4.1 spec requires the following semantics: | |
205 | * | |
206 | * Persistent | pNFS | Server REQUIRED | Client Allowed | |
207 | * Reply Cache | server | | | |
208 | * -------------+--------+-----------------+-------------------- | |
209 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
210 | * | | | (SHOULD) | |
211 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 | |
212 | * | | | (SHOULD NOT) | |
213 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
214 | * yes | no | GUARDED4 | GUARDED4 | |
215 | * yes | yes | GUARDED4 | GUARDED4 | |
216 | */ | |
217 | ||
1da177e4 LT |
218 | /* |
219 | * Note: create modes (UNCHECKED,GUARDED...) are the same | |
ac6721a1 | 220 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
1da177e4 | 221 | */ |
ac6721a1 | 222 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
1da177e4 LT |
223 | open->op_fname.len, &open->op_iattr, |
224 | &resfh, open->op_createmode, | |
749997e5 | 225 | (u32 *)open->op_verf.data, |
856121b2 | 226 | &open->op_truncate, &open->op_created); |
749997e5 | 227 | |
99f88726 BF |
228 | /* |
229 | * Following rfc 3530 14.2.16, use the returned bitmask | |
230 | * to indicate which attributes we used to store the | |
231 | * verifier: | |
749997e5 JL |
232 | */ |
233 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) | |
99f88726 | 234 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
749997e5 | 235 | FATTR4_WORD1_TIME_MODIFY); |
af85852d | 236 | } else { |
1da177e4 LT |
237 | status = nfsd_lookup(rqstp, current_fh, |
238 | open->op_fname.data, open->op_fname.len, &resfh); | |
239 | fh_unlock(current_fh); | |
aadab6c6 BF |
240 | if (status) |
241 | goto out; | |
242 | status = nfsd_check_obj_isreg(&resfh); | |
1da177e4 | 243 | } |
af85852d BF |
244 | if (status) |
245 | goto out; | |
1da177e4 | 246 | |
9208faf2 YZ |
247 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
248 | do_set_nfs4_acl(rqstp, &resfh, open->op_acl, open->op_bmval); | |
249 | ||
af85852d | 250 | set_change_info(&open->op_cinfo, current_fh); |
13024b7b | 251 | fh_dup2(current_fh, &resfh); |
1da177e4 | 252 | |
af85852d | 253 | /* set reply cache */ |
fe0750e5 | 254 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
a4773c08 | 255 | &resfh.fh_handle); |
856121b2 | 256 | if (!open->op_created) |
8837abca MS |
257 | status = do_open_permission(rqstp, current_fh, open, |
258 | NFSD_MAY_NOP); | |
1da177e4 | 259 | |
af85852d | 260 | out: |
1da177e4 LT |
261 | fh_put(&resfh); |
262 | return status; | |
263 | } | |
264 | ||
b37ad28b | 265 | static __be32 |
1da177e4 LT |
266 | do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
267 | { | |
b37ad28b | 268 | __be32 status; |
1da177e4 | 269 | |
1da177e4 LT |
270 | /* We don't know the target directory, and therefore can not |
271 | * set the change info | |
272 | */ | |
273 | ||
274 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
275 | ||
276 | /* set replay cache */ | |
fe0750e5 | 277 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
a4773c08 | 278 | ¤t_fh->fh_handle); |
1da177e4 LT |
279 | |
280 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
281 | (open->op_iattr.ia_size == 0); | |
282 | ||
8837abca MS |
283 | status = do_open_permission(rqstp, current_fh, open, |
284 | NFSD_MAY_OWNER_OVERRIDE); | |
1da177e4 LT |
285 | |
286 | return status; | |
287 | } | |
288 | ||
60adfc50 AA |
289 | static void |
290 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) | |
291 | { | |
292 | struct nfsd4_sessionid *sid = | |
293 | (struct nfsd4_sessionid *)session->se_sessionid.data; | |
294 | ||
295 | clid->cl_boot = sid->clientid.cl_boot; | |
296 | clid->cl_id = sid->clientid.cl_id; | |
297 | } | |
1da177e4 | 298 | |
7191155b | 299 | static __be32 |
ca364317 | 300 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
a4f1706a | 301 | struct nfsd4_open *open) |
1da177e4 | 302 | { |
b37ad28b | 303 | __be32 status; |
6668958f AA |
304 | struct nfsd4_compoundres *resp; |
305 | ||
fe0750e5 | 306 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
1da177e4 | 307 | (int)open->op_fname.len, open->op_fname.data, |
fe0750e5 | 308 | open->op_openowner); |
1da177e4 | 309 | |
1da177e4 LT |
310 | /* This check required by spec. */ |
311 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
312 | return nfserr_inval; | |
313 | ||
b6d2f1ca BF |
314 | /* We don't yet support WANT bits: */ |
315 | open->op_share_access &= NFS4_SHARE_ACCESS_MASK; | |
316 | ||
856121b2 | 317 | open->op_created = 0; |
ab1350b2 MJ |
318 | /* |
319 | * RFC5661 18.51.3 | |
320 | * Before RECLAIM_COMPLETE done, server should deny new lock | |
321 | */ | |
322 | if (nfsd4_has_session(cstate) && | |
323 | !cstate->session->se_client->cl_firststate && | |
324 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) | |
325 | return nfserr_grace; | |
326 | ||
60adfc50 AA |
327 | if (nfsd4_has_session(cstate)) |
328 | copy_clientid(&open->op_clientid, cstate->session); | |
329 | ||
1da177e4 LT |
330 | nfs4_lock_state(); |
331 | ||
332 | /* check seqid for replay. set nfs4_owner */ | |
6668958f AA |
333 | resp = rqstp->rq_resp; |
334 | status = nfsd4_process_open1(&resp->cstate, open); | |
a90b061c | 335 | if (status == nfserr_replay_me) { |
fe0750e5 | 336 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
ca364317 | 337 | fh_put(&cstate->current_fh); |
a4773c08 BF |
338 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
339 | &rp->rp_openfh); | |
8837abca | 340 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
341 | if (status) |
342 | dprintk("nfsd4_open: replay failed" | |
343 | " restoring previous filehandle\n"); | |
344 | else | |
a90b061c | 345 | status = nfserr_replay_me; |
1da177e4 LT |
346 | } |
347 | if (status) | |
348 | goto out; | |
fb553c0f | 349 | |
3c8e0316 YZ |
350 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
351 | if (status) | |
352 | goto out; | |
353 | ||
fb553c0f BF |
354 | /* Openowner is now set, so sequence id will get bumped. Now we need |
355 | * these checks before we do any creates: */ | |
cbd0d51a | 356 | status = nfserr_grace; |
af558e33 | 357 | if (locks_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
358 | goto out; |
359 | status = nfserr_no_grace; | |
af558e33 | 360 | if (!locks_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 361 | goto out; |
fb553c0f | 362 | |
1da177e4 | 363 | switch (open->op_claim_type) { |
0dd3c192 | 364 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
1da177e4 | 365 | case NFS4_OPEN_CLAIM_NULL: |
ca364317 BF |
366 | status = do_open_lookup(rqstp, &cstate->current_fh, |
367 | open); | |
1da177e4 LT |
368 | if (status) |
369 | goto out; | |
370 | break; | |
371 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
dad1c067 | 372 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
0cf99b91 MJ |
373 | status = nfs4_check_open_reclaim(&open->op_clientid); |
374 | if (status) | |
375 | goto out; | |
8b289b2c BF |
376 | case NFS4_OPEN_CLAIM_FH: |
377 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: | |
ca364317 BF |
378 | status = do_open_fhandle(rqstp, &cstate->current_fh, |
379 | open); | |
1da177e4 LT |
380 | if (status) |
381 | goto out; | |
382 | break; | |
8b289b2c | 383 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
1da177e4 | 384 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
dad1c067 | 385 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
2fdada03 | 386 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
1da177e4 LT |
387 | open->op_claim_type); |
388 | status = nfserr_notsupp; | |
389 | goto out; | |
390 | default: | |
2fdada03 | 391 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
1da177e4 LT |
392 | open->op_claim_type); |
393 | status = nfserr_inval; | |
394 | goto out; | |
395 | } | |
396 | /* | |
397 | * nfsd4_process_open2() does the actual opening of the file. If | |
398 | * successful, it (1) truncates the file if open->op_truncate was | |
399 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
400 | */ | |
ca364317 | 401 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
856121b2 | 402 | WARN_ON(status && open->op_created); |
1da177e4 | 403 | out: |
d29b20cd | 404 | nfsd4_cleanup_open_state(open, status); |
fe0750e5 BF |
405 | if (open->op_openowner) |
406 | cstate->replay_owner = &open->op_openowner->oo_owner; | |
7c13f344 | 407 | else |
5ec094c1 | 408 | nfs4_unlock_state(); |
1da177e4 LT |
409 | return status; |
410 | } | |
411 | ||
412 | /* | |
413 | * filehandle-manipulating ops. | |
414 | */ | |
7191155b | 415 | static __be32 |
b591480b BF |
416 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
417 | struct svc_fh **getfh) | |
1da177e4 | 418 | { |
ca364317 | 419 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
420 | return nfserr_nofilehandle; |
421 | ||
ca364317 | 422 | *getfh = &cstate->current_fh; |
1da177e4 LT |
423 | return nfs_ok; |
424 | } | |
425 | ||
7191155b | 426 | static __be32 |
ca364317 BF |
427 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
428 | struct nfsd4_putfh *putfh) | |
1da177e4 | 429 | { |
ca364317 BF |
430 | fh_put(&cstate->current_fh); |
431 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; | |
432 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, | |
433 | putfh->pf_fhlen); | |
68d93184 | 434 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
1da177e4 LT |
435 | } |
436 | ||
7191155b | 437 | static __be32 |
b591480b BF |
438 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
439 | void *arg) | |
1da177e4 | 440 | { |
b37ad28b | 441 | __be32 status; |
1da177e4 | 442 | |
ca364317 | 443 | fh_put(&cstate->current_fh); |
df547efb | 444 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
1da177e4 LT |
445 | return status; |
446 | } | |
447 | ||
7191155b | 448 | static __be32 |
b591480b BF |
449 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
450 | void *arg) | |
1da177e4 | 451 | { |
ca364317 | 452 | if (!cstate->save_fh.fh_dentry) |
1da177e4 LT |
453 | return nfserr_restorefh; |
454 | ||
ca364317 | 455 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
1da177e4 LT |
456 | return nfs_ok; |
457 | } | |
458 | ||
7191155b | 459 | static __be32 |
b591480b BF |
460 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
461 | void *arg) | |
1da177e4 | 462 | { |
ca364317 | 463 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
464 | return nfserr_nofilehandle; |
465 | ||
ca364317 | 466 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
1da177e4 LT |
467 | return nfs_ok; |
468 | } | |
469 | ||
470 | /* | |
471 | * misc nfsv4 ops | |
472 | */ | |
7191155b | 473 | static __be32 |
ca364317 BF |
474 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
475 | struct nfsd4_access *access) | |
1da177e4 LT |
476 | { |
477 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) | |
478 | return nfserr_inval; | |
479 | ||
480 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
481 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
482 | &access->ac_supported); | |
1da177e4 LT |
483 | } |
484 | ||
7191155b | 485 | static __be32 |
ca364317 BF |
486 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
487 | struct nfsd4_commit *commit) | |
1da177e4 | 488 | { |
1da177e4 LT |
489 | u32 *p = (u32 *)commit->co_verf.data; |
490 | *p++ = nfssvc_boot.tv_sec; | |
491 | *p++ = nfssvc_boot.tv_usec; | |
492 | ||
75c096f7 | 493 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
ca364317 | 494 | commit->co_count); |
1da177e4 LT |
495 | } |
496 | ||
b37ad28b | 497 | static __be32 |
ca364317 BF |
498 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
499 | struct nfsd4_create *create) | |
1da177e4 LT |
500 | { |
501 | struct svc_fh resfh; | |
b37ad28b | 502 | __be32 status; |
1da177e4 LT |
503 | dev_t rdev; |
504 | ||
505 | fh_init(&resfh, NFS4_FHSIZE); | |
506 | ||
8837abca MS |
507 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
508 | NFSD_MAY_CREATE); | |
1da177e4 LT |
509 | if (status) |
510 | return status; | |
511 | ||
3c8e0316 YZ |
512 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
513 | nfsd_attrmask); | |
514 | if (status) | |
515 | return status; | |
516 | ||
1da177e4 LT |
517 | switch (create->cr_type) { |
518 | case NF4LNK: | |
519 | /* ugh! we have to null-terminate the linktext, or | |
520 | * vfs_symlink() will choke. it is always safe to | |
521 | * null-terminate by brute force, since at worst we | |
522 | * will overwrite the first byte of the create namelen | |
523 | * in the XDR buffer, which has already been extracted | |
524 | * during XDR decode. | |
525 | */ | |
526 | create->cr_linkname[create->cr_linklen] = 0; | |
527 | ||
ca364317 BF |
528 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
529 | create->cr_name, create->cr_namelen, | |
530 | create->cr_linkname, create->cr_linklen, | |
531 | &resfh, &create->cr_iattr); | |
1da177e4 LT |
532 | break; |
533 | ||
534 | case NF4BLK: | |
535 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
536 | if (MAJOR(rdev) != create->cr_specdata1 || | |
537 | MINOR(rdev) != create->cr_specdata2) | |
538 | return nfserr_inval; | |
ca364317 BF |
539 | status = nfsd_create(rqstp, &cstate->current_fh, |
540 | create->cr_name, create->cr_namelen, | |
541 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
542 | break; |
543 | ||
544 | case NF4CHR: | |
545 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
546 | if (MAJOR(rdev) != create->cr_specdata1 || | |
547 | MINOR(rdev) != create->cr_specdata2) | |
548 | return nfserr_inval; | |
ca364317 BF |
549 | status = nfsd_create(rqstp, &cstate->current_fh, |
550 | create->cr_name, create->cr_namelen, | |
551 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
552 | break; |
553 | ||
554 | case NF4SOCK: | |
ca364317 BF |
555 | status = nfsd_create(rqstp, &cstate->current_fh, |
556 | create->cr_name, create->cr_namelen, | |
557 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
558 | break; |
559 | ||
560 | case NF4FIFO: | |
ca364317 BF |
561 | status = nfsd_create(rqstp, &cstate->current_fh, |
562 | create->cr_name, create->cr_namelen, | |
563 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
564 | break; |
565 | ||
566 | case NF4DIR: | |
567 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
568 | status = nfsd_create(rqstp, &cstate->current_fh, |
569 | create->cr_name, create->cr_namelen, | |
570 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
571 | break; |
572 | ||
573 | default: | |
574 | status = nfserr_badtype; | |
575 | } | |
576 | ||
9208faf2 YZ |
577 | if (status) |
578 | goto out; | |
1da177e4 | 579 | |
9208faf2 YZ |
580 | if (create->cr_acl != NULL) |
581 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
582 | create->cr_bmval); | |
583 | ||
584 | fh_unlock(&cstate->current_fh); | |
585 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
586 | fh_dup2(&cstate->current_fh, &resfh); | |
587 | out: | |
1da177e4 LT |
588 | fh_put(&resfh); |
589 | return status; | |
590 | } | |
591 | ||
7191155b | 592 | static __be32 |
ca364317 BF |
593 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
594 | struct nfsd4_getattr *getattr) | |
1da177e4 | 595 | { |
b37ad28b | 596 | __be32 status; |
1da177e4 | 597 | |
8837abca | 598 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
599 | if (status) |
600 | return status; | |
601 | ||
602 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
603 | return nfserr_inval; | |
604 | ||
7e705706 AA |
605 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
606 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
607 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 608 | |
ca364317 | 609 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
610 | return nfs_ok; |
611 | } | |
612 | ||
7191155b | 613 | static __be32 |
ca364317 BF |
614 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
615 | struct nfsd4_link *link) | |
1da177e4 | 616 | { |
b37ad28b | 617 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 618 | |
ca364317 | 619 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 620 | return status; |
ca364317 BF |
621 | status = nfsd_link(rqstp, &cstate->current_fh, |
622 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 623 | if (!status) |
ca364317 | 624 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
625 | return status; |
626 | } | |
627 | ||
0ff7ab46 | 628 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
629 | { |
630 | struct svc_fh tmp_fh; | |
b37ad28b | 631 | __be32 ret; |
1da177e4 LT |
632 | |
633 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
634 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
635 | if (ret) | |
1da177e4 | 636 | return ret; |
0ff7ab46 | 637 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
638 | fh_put(&tmp_fh); |
639 | return nfserr_noent; | |
640 | } | |
641 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
642 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
643 | } | |
644 | ||
645 | static __be32 | |
646 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
647 | void *arg) | |
648 | { | |
649 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
650 | } |
651 | ||
7191155b | 652 | static __be32 |
ca364317 BF |
653 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
654 | struct nfsd4_lookup *lookup) | |
1da177e4 | 655 | { |
ca364317 BF |
656 | return nfsd_lookup(rqstp, &cstate->current_fh, |
657 | lookup->lo_name, lookup->lo_len, | |
658 | &cstate->current_fh); | |
1da177e4 LT |
659 | } |
660 | ||
7191155b | 661 | static __be32 |
ca364317 BF |
662 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
663 | struct nfsd4_read *read) | |
1da177e4 | 664 | { |
b37ad28b | 665 | __be32 status; |
1da177e4 LT |
666 | |
667 | /* no need to check permission - this will be done in nfsd_read() */ | |
668 | ||
7e06b7f9 | 669 | read->rd_filp = NULL; |
1da177e4 LT |
670 | if (read->rd_offset >= OFFSET_MAX) |
671 | return nfserr_inval; | |
672 | ||
673 | nfs4_lock_state(); | |
674 | /* check stateid */ | |
dd453dfd BH |
675 | if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid, |
676 | RD_STATE, &read->rd_filp))) { | |
1da177e4 LT |
677 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
678 | goto out; | |
679 | } | |
7e06b7f9 N |
680 | if (read->rd_filp) |
681 | get_file(read->rd_filp); | |
1da177e4 LT |
682 | status = nfs_ok; |
683 | out: | |
684 | nfs4_unlock_state(); | |
685 | read->rd_rqstp = rqstp; | |
ca364317 | 686 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
687 | return status; |
688 | } | |
689 | ||
7191155b | 690 | static __be32 |
ca364317 BF |
691 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
692 | struct nfsd4_readdir *readdir) | |
1da177e4 LT |
693 | { |
694 | u64 cookie = readdir->rd_cookie; | |
695 | static const nfs4_verifier zeroverf; | |
696 | ||
697 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
698 | ||
699 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
700 | return nfserr_inval; | |
701 | ||
7e705706 AA |
702 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
703 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
704 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 705 | |
832023bf | 706 | if ((cookie == 1) || (cookie == 2) || |
1da177e4 LT |
707 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
708 | return nfserr_bad_cookie; | |
709 | ||
710 | readdir->rd_rqstp = rqstp; | |
ca364317 | 711 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
712 | return nfs_ok; |
713 | } | |
714 | ||
7191155b | 715 | static __be32 |
ca364317 BF |
716 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
717 | struct nfsd4_readlink *readlink) | |
1da177e4 LT |
718 | { |
719 | readlink->rl_rqstp = rqstp; | |
ca364317 | 720 | readlink->rl_fhp = &cstate->current_fh; |
1da177e4 LT |
721 | return nfs_ok; |
722 | } | |
723 | ||
7191155b | 724 | static __be32 |
ca364317 BF |
725 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
726 | struct nfsd4_remove *remove) | |
1da177e4 | 727 | { |
b37ad28b | 728 | __be32 status; |
1da177e4 | 729 | |
af558e33 | 730 | if (locks_in_grace()) |
c815afc7 | 731 | return nfserr_grace; |
ca364317 BF |
732 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
733 | remove->rm_name, remove->rm_namelen); | |
1da177e4 | 734 | if (!status) { |
ca364317 BF |
735 | fh_unlock(&cstate->current_fh); |
736 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
737 | } |
738 | return status; | |
739 | } | |
740 | ||
7191155b | 741 | static __be32 |
ca364317 BF |
742 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
743 | struct nfsd4_rename *rename) | |
1da177e4 | 744 | { |
b37ad28b | 745 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 746 | |
ca364317 | 747 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 748 | return status; |
af558e33 | 749 | if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags |
c815afc7 N |
750 | & NFSEXP_NOSUBTREECHECK)) |
751 | return nfserr_grace; | |
ca364317 BF |
752 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
753 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 LT |
754 | rename->rn_tname, rename->rn_tnamelen); |
755 | ||
756 | /* the underlying filesystem returns different error's than required | |
757 | * by NFSv4. both save_fh and current_fh have been verified.. */ | |
758 | if (status == nfserr_isdir) | |
759 | status = nfserr_exist; | |
760 | else if ((status == nfserr_notdir) && | |
ca364317 BF |
761 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
762 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) | |
1da177e4 | 763 | status = nfserr_exist; |
1da177e4 LT |
764 | |
765 | if (!status) { | |
ca364317 BF |
766 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
767 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
1da177e4 LT |
768 | } |
769 | return status; | |
770 | } | |
771 | ||
dcb488a3 AA |
772 | static __be32 |
773 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
774 | struct nfsd4_secinfo *secinfo) | |
775 | { | |
776 | struct svc_fh resfh; | |
777 | struct svc_export *exp; | |
778 | struct dentry *dentry; | |
779 | __be32 err; | |
780 | ||
781 | fh_init(&resfh, NFS4_FHSIZE); | |
29a78a3e BF |
782 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
783 | if (err) | |
784 | return err; | |
dcb488a3 AA |
785 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
786 | secinfo->si_name, secinfo->si_namelen, | |
787 | &exp, &dentry); | |
788 | if (err) | |
789 | return err; | |
790 | if (dentry->d_inode == NULL) { | |
791 | exp_put(exp); | |
792 | err = nfserr_noent; | |
793 | } else | |
794 | secinfo->si_exp = exp; | |
795 | dput(dentry); | |
56560b9a BF |
796 | if (cstate->minorversion) |
797 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
798 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
799 | return err; |
800 | } | |
801 | ||
04f4ad16 BF |
802 | static __be32 |
803 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
804 | struct nfsd4_secinfo_no_name *sin) | |
805 | { | |
806 | __be32 err; | |
807 | ||
808 | switch (sin->sin_style) { | |
809 | case NFS4_SECINFO_STYLE4_CURRENT_FH: | |
810 | break; | |
811 | case NFS4_SECINFO_STYLE4_PARENT: | |
812 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
813 | if (err) | |
814 | return err; | |
815 | break; | |
816 | default: | |
817 | return nfserr_inval; | |
818 | } | |
819 | exp_get(cstate->current_fh.fh_export); | |
820 | sin->sin_exp = cstate->current_fh.fh_export; | |
821 | fh_put(&cstate->current_fh); | |
822 | return nfs_ok; | |
823 | } | |
824 | ||
7191155b | 825 | static __be32 |
ca364317 BF |
826 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
827 | struct nfsd4_setattr *setattr) | |
1da177e4 | 828 | { |
b37ad28b | 829 | __be32 status = nfs_ok; |
1da177e4 | 830 | |
1da177e4 LT |
831 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
832 | nfs4_lock_state(); | |
dd453dfd | 833 | status = nfs4_preprocess_stateid_op(cstate, |
6150ef0d | 834 | &setattr->sa_stateid, WR_STATE, NULL); |
1da177e4 | 835 | nfs4_unlock_state(); |
375c5547 | 836 | if (status) { |
3e3b4800 | 837 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
838 | return status; |
839 | } | |
1da177e4 | 840 | } |
bad0dcff | 841 | status = fh_want_write(&cstate->current_fh); |
18f335af DH |
842 | if (status) |
843 | return status; | |
1da177e4 | 844 | status = nfs_ok; |
3c8e0316 YZ |
845 | |
846 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
847 | nfsd_attrmask); | |
848 | if (status) | |
849 | goto out; | |
850 | ||
1da177e4 | 851 | if (setattr->sa_acl != NULL) |
ca364317 BF |
852 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
853 | setattr->sa_acl); | |
1da177e4 | 854 | if (status) |
18f335af | 855 | goto out; |
ca364317 | 856 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 857 | 0, (time_t)0); |
18f335af | 858 | out: |
bad0dcff | 859 | fh_drop_write(&cstate->current_fh); |
1da177e4 LT |
860 | return status; |
861 | } | |
862 | ||
7191155b | 863 | static __be32 |
ca364317 BF |
864 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
865 | struct nfsd4_write *write) | |
1da177e4 LT |
866 | { |
867 | stateid_t *stateid = &write->wr_stateid; | |
868 | struct file *filp = NULL; | |
869 | u32 *p; | |
b37ad28b | 870 | __be32 status = nfs_ok; |
31dec253 | 871 | unsigned long cnt; |
1da177e4 LT |
872 | |
873 | /* no need to check permission - this will be done in nfsd_write() */ | |
874 | ||
875 | if (write->wr_offset >= OFFSET_MAX) | |
876 | return nfserr_inval; | |
877 | ||
878 | nfs4_lock_state(); | |
dd453dfd | 879 | status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp); |
7e06b7f9 N |
880 | if (filp) |
881 | get_file(filp); | |
1da177e4 LT |
882 | nfs4_unlock_state(); |
883 | ||
375c5547 BF |
884 | if (status) { |
885 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); | |
886 | return status; | |
887 | } | |
888 | ||
31dec253 | 889 | cnt = write->wr_buflen; |
1da177e4 LT |
890 | write->wr_how_written = write->wr_stable_how; |
891 | p = (u32 *)write->wr_verifier.data; | |
892 | *p++ = nfssvc_boot.tv_sec; | |
893 | *p++ = nfssvc_boot.tv_usec; | |
894 | ||
ca364317 BF |
895 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
896 | write->wr_offset, rqstp->rq_vec, write->wr_vlen, | |
31dec253 | 897 | &cnt, &write->wr_how_written); |
7e06b7f9 N |
898 | if (filp) |
899 | fput(filp); | |
1da177e4 | 900 | |
31dec253 DS |
901 | write->wr_bytes_written = cnt; |
902 | ||
1da177e4 | 903 | return status; |
1da177e4 LT |
904 | } |
905 | ||
906 | /* This routine never returns NFS_OK! If there are no other errors, it | |
907 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
908 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
909 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
910 | */ | |
b37ad28b | 911 | static __be32 |
c954e2a5 | 912 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 913 | struct nfsd4_verify *verify) |
1da177e4 | 914 | { |
2ebbc012 | 915 | __be32 *buf, *p; |
1da177e4 | 916 | int count; |
b37ad28b | 917 | __be32 status; |
1da177e4 | 918 | |
8837abca | 919 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
920 | if (status) |
921 | return status; | |
922 | ||
3c8e0316 YZ |
923 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
924 | if (status) | |
925 | return status; | |
926 | ||
1da177e4 LT |
927 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
928 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
929 | return nfserr_inval; | |
930 | if (verify->ve_attrlen & 3) | |
931 | return nfserr_inval; | |
932 | ||
933 | /* count in words: | |
934 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
935 | */ | |
936 | count = 4 + (verify->ve_attrlen >> 2); | |
937 | buf = kmalloc(count << 2, GFP_KERNEL); | |
938 | if (!buf) | |
3e772463 | 939 | return nfserr_jukebox; |
1da177e4 | 940 | |
ca364317 BF |
941 | status = nfsd4_encode_fattr(&cstate->current_fh, |
942 | cstate->current_fh.fh_export, | |
943 | cstate->current_fh.fh_dentry, buf, | |
1da177e4 | 944 | &count, verify->ve_bmval, |
406a7ea9 | 945 | rqstp, 0); |
1da177e4 LT |
946 | |
947 | /* this means that nfsd4_encode_fattr() ran out of space */ | |
948 | if (status == nfserr_resource && count == 0) | |
949 | status = nfserr_not_same; | |
950 | if (status) | |
951 | goto out_kfree; | |
952 | ||
95ec28cd BH |
953 | /* skip bitmap */ |
954 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
955 | status = nfserr_not_same; |
956 | if (ntohl(*p++) != verify->ve_attrlen) | |
957 | goto out_kfree; | |
958 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
959 | status = nfserr_same; | |
960 | ||
961 | out_kfree: | |
962 | kfree(buf); | |
963 | return status; | |
964 | } | |
965 | ||
c954e2a5 BF |
966 | static __be32 |
967 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
968 | struct nfsd4_verify *verify) | |
969 | { | |
970 | __be32 status; | |
971 | ||
972 | status = _nfsd4_verify(rqstp, cstate, verify); | |
973 | return status == nfserr_not_same ? nfs_ok : status; | |
974 | } | |
975 | ||
976 | static __be32 | |
977 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
978 | struct nfsd4_verify *verify) | |
979 | { | |
980 | __be32 status; | |
981 | ||
982 | status = _nfsd4_verify(rqstp, cstate, verify); | |
983 | return status == nfserr_same ? nfs_ok : status; | |
984 | } | |
985 | ||
1da177e4 LT |
986 | /* |
987 | * NULL call. | |
988 | */ | |
7111c66e | 989 | static __be32 |
1da177e4 LT |
990 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
991 | { | |
992 | return nfs_ok; | |
993 | } | |
994 | ||
e2b20950 SA |
995 | static inline void nfsd4_increment_op_stats(u32 opnum) |
996 | { | |
997 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
998 | nfsdstats.nfs4_opcount[opnum]++; | |
999 | } | |
1000 | ||
b591480b BF |
1001 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
1002 | void *); | |
58e7b33a | 1003 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
8b70484c TM |
1004 | typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *); |
1005 | typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *); | |
58e7b33a | 1006 | |
f9bb94c4 AA |
1007 | enum nfsd4_op_flags { |
1008 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ | |
5ece3caf MJ |
1009 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
1010 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ | |
68d93184 BF |
1011 | /* For rfc 5661 section 2.6.3.1.1: */ |
1012 | OP_HANDLES_WRONGSEC = 1 << 3, | |
1013 | OP_IS_PUTFH_LIKE = 1 << 4, | |
1091006c | 1014 | /* |
c856694e BF |
1015 | * These are the ops whose result size we estimate before |
1016 | * encoding, to avoid performing an op then not being able to | |
1017 | * respond or cache a response. This includes writes and setattrs | |
1018 | * as well as the operations usually called "nonidempotent": | |
1019 | */ | |
1020 | OP_MODIFIES_SOMETHING = 1 << 5, | |
1021 | /* | |
1022 | * Cache compounds containing these ops in the xid-based drc: | |
1091006c BF |
1023 | * We use the DRC for compounds containing non-idempotent |
1024 | * operations, *except* those that are 4.1-specific (since | |
1025 | * sessions provide their own EOS), and except for stateful | |
1026 | * operations other than setclientid and setclientid_confirm | |
1027 | * (since sequence numbers provide EOS for open, lock, etc in | |
1028 | * the v4.0 case). | |
1029 | */ | |
c856694e | 1030 | OP_CACHEME = 1 << 6, |
8b70484c TM |
1031 | /* |
1032 | * These are ops which clear current state id. | |
1033 | */ | |
1034 | OP_CLEAR_STATEID = 1 << 7, | |
c856694e BF |
1035 | }; |
1036 | ||
1037 | struct nfsd4_operation { | |
1038 | nfsd4op_func op_func; | |
1039 | u32 op_flags; | |
1040 | char *op_name; | |
58e7b33a MJ |
1041 | /* Try to get response size before operation */ |
1042 | nfsd4op_rsize op_rsize_bop; | |
8b70484c TM |
1043 | stateid_setter op_get_currentstateid; |
1044 | stateid_getter op_set_currentstateid; | |
b591480b BF |
1045 | }; |
1046 | ||
1047 | static struct nfsd4_operation nfsd4_ops[]; | |
1048 | ||
f1c7f79b | 1049 | static const char *nfsd4_op_name(unsigned opnum); |
b001a1b6 | 1050 | |
f9bb94c4 | 1051 | /* |
57716355 | 1052 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1053 | * |
57716355 BF |
1054 | * Also note, enforced elsewhere: |
1055 | * - SEQUENCE other than as first op results in | |
1056 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1057 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1058 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1059 | * - DESTROY_SESSION must be the final operation in a compound, if |
1060 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1061 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1062 | */ |
57716355 | 1063 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1064 | { |
57716355 BF |
1065 | struct nfsd4_op *op = &args->ops[0]; |
1066 | ||
1067 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1068 | if (args->minorversion == 0) | |
1069 | return nfs_ok; | |
1070 | /* This is weird, but OK, not our problem: */ | |
1071 | if (args->opcnt == 0) | |
1072 | return nfs_ok; | |
1073 | if (op->status == nfserr_op_illegal) | |
1074 | return nfs_ok; | |
1075 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1076 | return nfserr_op_not_in_session; | |
1077 | if (op->opnum == OP_SEQUENCE) | |
1078 | return nfs_ok; | |
1079 | if (args->opcnt != 1) | |
1080 | return nfserr_not_only_op; | |
1081 | return nfs_ok; | |
f9bb94c4 AA |
1082 | } |
1083 | ||
22b03214 BF |
1084 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
1085 | { | |
1086 | return &nfsd4_ops[op->opnum]; | |
1087 | } | |
1088 | ||
1091006c BF |
1089 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1090 | { | |
c856694e | 1091 | return OPDESC(op)->op_flags & OP_CACHEME; |
1091006c BF |
1092 | } |
1093 | ||
68d93184 BF |
1094 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1095 | { | |
1096 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1097 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1098 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1099 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
1100 | struct nfsd4_operation *thisd; | |
1101 | struct nfsd4_operation *nextd; | |
1102 | ||
1103 | thisd = OPDESC(this); | |
1104 | /* | |
1105 | * Most ops check wronsec on our own; only the putfh-like ops | |
1106 | * have special rules. | |
1107 | */ | |
1108 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1109 | return false; | |
1110 | /* | |
1111 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1112 | * put-filehandle operation if we're not going to use the | |
1113 | * result: | |
1114 | */ | |
1115 | if (argp->opcnt == resp->opcnt) | |
1116 | return false; | |
1117 | ||
1118 | nextd = OPDESC(next); | |
1119 | /* | |
1120 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1121 | * errors themselves as necessary; others should check for them | |
1122 | * now: | |
1123 | */ | |
1124 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1125 | } | |
1126 | ||
1da177e4 LT |
1127 | /* |
1128 | * COMPOUND call. | |
1129 | */ | |
7111c66e | 1130 | static __be32 |
1da177e4 LT |
1131 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
1132 | struct nfsd4_compoundargs *args, | |
1133 | struct nfsd4_compoundres *resp) | |
1134 | { | |
1135 | struct nfsd4_op *op; | |
b591480b | 1136 | struct nfsd4_operation *opdesc; |
e354d571 | 1137 | struct nfsd4_compound_state *cstate = &resp->cstate; |
e5710199 | 1138 | int slack_bytes; |
58e7b33a | 1139 | u32 plen = 0; |
b37ad28b | 1140 | __be32 status; |
1da177e4 | 1141 | |
1da177e4 | 1142 | resp->xbuf = &rqstp->rq_res; |
e354d571 AA |
1143 | resp->p = rqstp->rq_res.head[0].iov_base + |
1144 | rqstp->rq_res.head[0].iov_len; | |
1da177e4 LT |
1145 | resp->tagp = resp->p; |
1146 | /* reserve space for: taglen, tag, and opcnt */ | |
1147 | resp->p += 2 + XDR_QUADLEN(args->taglen); | |
1148 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; | |
1149 | resp->taglen = args->taglen; | |
1150 | resp->tag = args->tag; | |
1151 | resp->opcnt = 0; | |
1152 | resp->rqstp = rqstp; | |
d87a8ade | 1153 | resp->cstate.minorversion = args->minorversion; |
e354d571 | 1154 | resp->cstate.replay_owner = NULL; |
26c0c75e | 1155 | resp->cstate.session = NULL; |
e354d571 AA |
1156 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
1157 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1158 | /* |
1159 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1160 | * too hard to avoid non-idempotency problems. | |
1161 | */ | |
1162 | rqstp->rq_usedeferral = 0; | |
1da177e4 LT |
1163 | |
1164 | /* | |
1165 | * According to RFC3010, this takes precedence over all other errors. | |
1166 | */ | |
1167 | status = nfserr_minor_vers_mismatch; | |
8daf220a | 1168 | if (args->minorversion > nfsd_supported_minorversion) |
1da177e4 LT |
1169 | goto out; |
1170 | ||
57716355 BF |
1171 | status = nfs41_check_op_ordering(args); |
1172 | if (status) { | |
f9bb94c4 | 1173 | op = &args->ops[0]; |
57716355 | 1174 | op->status = status; |
f9bb94c4 AA |
1175 | goto encode_op; |
1176 | } | |
1177 | ||
1da177e4 LT |
1178 | while (!status && resp->opcnt < args->opcnt) { |
1179 | op = &args->ops[resp->opcnt++]; | |
1180 | ||
b001a1b6 BH |
1181 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
1182 | resp->opcnt, args->opcnt, op->opnum, | |
1183 | nfsd4_op_name(op->opnum)); | |
1da177e4 LT |
1184 | /* |
1185 | * The XDR decode routines may have pre-set op->status; | |
1186 | * for example, if there is a miscellaneous XDR error | |
1187 | * it will be set to nfserr_bad_xdr. | |
1188 | */ | |
1189 | if (op->status) | |
1190 | goto encode_op; | |
1191 | ||
1192 | /* We must be able to encode a successful response to | |
1193 | * this operation, with enough room left over to encode a | |
1194 | * failed response to the next operation. If we don't | |
1195 | * have enough room, fail with ERR_RESOURCE. | |
1196 | */ | |
e5710199 BF |
1197 | slack_bytes = (char *)resp->end - (char *)resp->p; |
1198 | if (slack_bytes < COMPOUND_SLACK_SPACE | |
1199 | + COMPOUND_ERR_SLACK_SPACE) { | |
1200 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); | |
1da177e4 LT |
1201 | op->status = nfserr_resource; |
1202 | goto encode_op; | |
1203 | } | |
1204 | ||
22b03214 | 1205 | opdesc = OPDESC(op); |
b591480b | 1206 | |
ca364317 | 1207 | if (!cstate->current_fh.fh_dentry) { |
27d630ec | 1208 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1209 | op->status = nfserr_nofilehandle; |
1210 | goto encode_op; | |
1211 | } | |
eeac294e BF |
1212 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
1213 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { | |
42ca0993 | 1214 | op->status = nfserr_moved; |
1da177e4 LT |
1215 | goto encode_op; |
1216 | } | |
b591480b | 1217 | |
58e7b33a MJ |
1218 | /* If op is non-idempotent */ |
1219 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { | |
1220 | plen = opdesc->op_rsize_bop(rqstp, op); | |
1221 | op->status = nfsd4_check_resp_size(resp, plen); | |
1222 | } | |
1223 | ||
1224 | if (op->status) | |
1225 | goto encode_op; | |
1226 | ||
8b70484c TM |
1227 | if (opdesc->op_func) { |
1228 | if (opdesc->op_get_currentstateid) | |
1229 | opdesc->op_get_currentstateid(cstate, &op->u); | |
b591480b | 1230 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
8b70484c | 1231 | } else |
1da177e4 | 1232 | BUG_ON(op->status == nfs_ok); |
1da177e4 | 1233 | |
8b70484c TM |
1234 | if (!op->status) { |
1235 | if (opdesc->op_set_currentstateid) | |
1236 | opdesc->op_set_currentstateid(cstate, &op->u); | |
1237 | ||
1238 | if (opdesc->op_flags & OP_CLEAR_STATEID) | |
1239 | cstate->current_stateid = NULL; | |
1240 | ||
1241 | if (need_wrongsec_check(rqstp)) | |
1242 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); | |
1243 | } | |
68d93184 | 1244 | |
1da177e4 | 1245 | encode_op: |
49557cc7 | 1246 | /* Only from SEQUENCE */ |
da3846a2 AA |
1247 | if (resp->cstate.status == nfserr_replay_cache) { |
1248 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
abfabf8c | 1249 | status = op->status; |
da3846a2 AA |
1250 | goto out; |
1251 | } | |
a90b061c | 1252 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1253 | op->replay = &cstate->replay_owner->so_replay; |
1da177e4 LT |
1254 | nfsd4_encode_replay(resp, op); |
1255 | status = op->status = op->replay->rp_status; | |
1256 | } else { | |
1257 | nfsd4_encode_operation(resp, op); | |
1258 | status = op->status; | |
1259 | } | |
0407717d BH |
1260 | |
1261 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", | |
1262 | args->ops, args->opcnt, resp->opcnt, op->opnum, | |
1263 | be32_to_cpu(status)); | |
1264 | ||
a4f1706a | 1265 | if (cstate->replay_owner) { |
5ec094c1 | 1266 | nfs4_unlock_state(); |
a4f1706a | 1267 | cstate->replay_owner = NULL; |
1da177e4 | 1268 | } |
7e06b7f9 N |
1269 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
1270 | if (op->opnum == OP_READ && op->u.read.rd_filp) | |
1271 | fput(op->u.read.rd_filp); | |
e2b20950 SA |
1272 | |
1273 | nfsd4_increment_op_stats(op->opnum); | |
1da177e4 LT |
1274 | } |
1275 | ||
da3846a2 | 1276 | resp->cstate.status = status; |
e354d571 AA |
1277 | fh_put(&resp->cstate.current_fh); |
1278 | fh_put(&resp->cstate.save_fh); | |
1279 | BUG_ON(resp->cstate.replay_owner); | |
1da177e4 | 1280 | out: |
2f425878 AA |
1281 | /* Reset deferral mechanism for RPC deferrals */ |
1282 | rqstp->rq_usedeferral = 1; | |
3b12cd98 | 1283 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1284 | return status; |
1285 | } | |
1286 | ||
58e7b33a MJ |
1287 | #define op_encode_hdr_size (2) |
1288 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
1289 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1290 | #define op_encode_change_info_maxsz (5) | |
1291 | #define nfs4_fattr_bitmap_maxsz (4) | |
1292 | ||
1293 | #define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1294 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) | |
1295 | ||
1296 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1297 | ||
1298 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) | |
1299 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ | |
1300 | op_encode_ace_maxsz) | |
1301 | ||
1302 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) | |
1303 | ||
1304 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1305 | { | |
1306 | return (op_encode_hdr_size) * sizeof(__be32); | |
1307 | } | |
1308 | ||
1309 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1310 | { | |
1311 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); | |
1312 | } | |
1313 | ||
1314 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1315 | { | |
1316 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1317 | } | |
1318 | ||
1319 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1320 | { | |
1321 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1322 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1323 | } | |
1324 | ||
1325 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1326 | { | |
1327 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1328 | * sizeof(__be32); | |
1329 | } | |
1330 | ||
1331 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1332 | { | |
1333 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) | |
1334 | * sizeof(__be32); | |
1335 | } | |
1336 | ||
1337 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1338 | { | |
1339 | return (op_encode_hdr_size + op_encode_stateid_maxsz | |
1340 | + op_encode_change_info_maxsz + 1 | |
1341 | + nfs4_fattr_bitmap_maxsz | |
1342 | + op_encode_delegation_maxsz) * sizeof(__be32); | |
1343 | } | |
1344 | ||
1345 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1346 | { | |
1347 | u32 maxcount = 0, rlen = 0; | |
1348 | ||
1349 | maxcount = svc_max_payload(rqstp); | |
1350 | rlen = op->u.read.rd_length; | |
1351 | ||
1352 | if (rlen > maxcount) | |
1353 | rlen = maxcount; | |
1354 | ||
1355 | return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen; | |
1356 | } | |
1357 | ||
1358 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1359 | { | |
1360 | u32 rlen = op->u.readdir.rd_maxcount; | |
1361 | ||
1362 | if (rlen > PAGE_SIZE) | |
1363 | rlen = PAGE_SIZE; | |
1364 | ||
1365 | return (op_encode_hdr_size + op_encode_verifier_maxsz) | |
1366 | * sizeof(__be32) + rlen; | |
1367 | } | |
1368 | ||
1369 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1370 | { | |
1371 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1372 | * sizeof(__be32); | |
1373 | } | |
1374 | ||
1375 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1376 | { | |
1377 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1378 | + op_encode_change_info_maxsz) * sizeof(__be32); | |
1379 | } | |
1380 | ||
1381 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1382 | { | |
1383 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1384 | } | |
1385 | ||
1386 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1387 | { | |
1388 | return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32); | |
1389 | } | |
1390 | ||
1391 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1392 | { | |
1393 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1394 | } | |
1395 | ||
1396 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1397 | { | |
1398 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ | |
1399 | 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\ | |
1400 | 2 + /*eir_server_owner.so_minor_id */\ | |
1401 | /* eir_server_owner.so_major_id<> */\ | |
1402 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1403 | /* eir_server_scope<> */\ | |
1404 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1405 | 1 + /* eir_server_impl_id array length */\ | |
1406 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); | |
1407 | } | |
1408 | ||
1409 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1410 | { | |
1411 | return (op_encode_hdr_size + \ | |
1412 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ | |
1413 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); | |
1414 | } | |
1415 | ||
1416 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1417 | { | |
1418 | return (op_encode_hdr_size + \ | |
1419 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ | |
1420 | 2 + /* csr_sequence, csr_flags */\ | |
1421 | op_encode_channel_attrs_maxsz + \ | |
1422 | op_encode_channel_attrs_maxsz) * sizeof(__be32); | |
1423 | } | |
1424 | ||
20766016 | 1425 | static struct nfsd4_operation nfsd4_ops[] = { |
b591480b BF |
1426 | [OP_ACCESS] = { |
1427 | .op_func = (nfsd4op_func)nfsd4_access, | |
b001a1b6 | 1428 | .op_name = "OP_ACCESS", |
b591480b BF |
1429 | }, |
1430 | [OP_CLOSE] = { | |
1431 | .op_func = (nfsd4op_func)nfsd4_close, | |
58e7b33a | 1432 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1433 | .op_name = "OP_CLOSE", |
58e7b33a | 1434 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
8b70484c TM |
1435 | .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid, |
1436 | .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid, | |
b591480b BF |
1437 | }, |
1438 | [OP_COMMIT] = { | |
1439 | .op_func = (nfsd4op_func)nfsd4_commit, | |
58e7b33a | 1440 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1441 | .op_name = "OP_COMMIT", |
58e7b33a | 1442 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
b591480b BF |
1443 | }, |
1444 | [OP_CREATE] = { | |
1445 | .op_func = (nfsd4op_func)nfsd4_create, | |
c856694e | 1446 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1447 | .op_name = "OP_CREATE", |
58e7b33a | 1448 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
b591480b BF |
1449 | }, |
1450 | [OP_DELEGRETURN] = { | |
1451 | .op_func = (nfsd4op_func)nfsd4_delegreturn, | |
58e7b33a | 1452 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1453 | .op_name = "OP_DELEGRETURN", |
58e7b33a | 1454 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
1455 | }, |
1456 | [OP_GETATTR] = { | |
1457 | .op_func = (nfsd4op_func)nfsd4_getattr, | |
eeac294e | 1458 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1459 | .op_name = "OP_GETATTR", |
b591480b BF |
1460 | }, |
1461 | [OP_GETFH] = { | |
1462 | .op_func = (nfsd4op_func)nfsd4_getfh, | |
b001a1b6 | 1463 | .op_name = "OP_GETFH", |
b591480b BF |
1464 | }, |
1465 | [OP_LINK] = { | |
1466 | .op_func = (nfsd4op_func)nfsd4_link, | |
c856694e BF |
1467 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
1468 | | OP_CACHEME, | |
b001a1b6 | 1469 | .op_name = "OP_LINK", |
58e7b33a | 1470 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
b591480b BF |
1471 | }, |
1472 | [OP_LOCK] = { | |
1473 | .op_func = (nfsd4op_func)nfsd4_lock, | |
58e7b33a | 1474 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1475 | .op_name = "OP_LOCK", |
58e7b33a | 1476 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
62cd4a59 | 1477 | .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid, |
b591480b BF |
1478 | }, |
1479 | [OP_LOCKT] = { | |
1480 | .op_func = (nfsd4op_func)nfsd4_lockt, | |
b001a1b6 | 1481 | .op_name = "OP_LOCKT", |
b591480b BF |
1482 | }, |
1483 | [OP_LOCKU] = { | |
1484 | .op_func = (nfsd4op_func)nfsd4_locku, | |
58e7b33a | 1485 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1486 | .op_name = "OP_LOCKU", |
58e7b33a | 1487 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
62cd4a59 | 1488 | .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid, |
b591480b BF |
1489 | }, |
1490 | [OP_LOOKUP] = { | |
1491 | .op_func = (nfsd4op_func)nfsd4_lookup, | |
68d93184 | 1492 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1493 | .op_name = "OP_LOOKUP", |
b591480b BF |
1494 | }, |
1495 | [OP_LOOKUPP] = { | |
1496 | .op_func = (nfsd4op_func)nfsd4_lookupp, | |
68d93184 | 1497 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1498 | .op_name = "OP_LOOKUPP", |
b591480b BF |
1499 | }, |
1500 | [OP_NVERIFY] = { | |
1501 | .op_func = (nfsd4op_func)nfsd4_nverify, | |
b001a1b6 | 1502 | .op_name = "OP_NVERIFY", |
b591480b BF |
1503 | }, |
1504 | [OP_OPEN] = { | |
1505 | .op_func = (nfsd4op_func)nfsd4_open, | |
58e7b33a | 1506 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1507 | .op_name = "OP_OPEN", |
58e7b33a | 1508 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
8b70484c | 1509 | .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid, |
b591480b BF |
1510 | }, |
1511 | [OP_OPEN_CONFIRM] = { | |
1512 | .op_func = (nfsd4op_func)nfsd4_open_confirm, | |
58e7b33a | 1513 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1514 | .op_name = "OP_OPEN_CONFIRM", |
58e7b33a | 1515 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1516 | }, |
1517 | [OP_OPEN_DOWNGRADE] = { | |
1518 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, | |
58e7b33a | 1519 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1520 | .op_name = "OP_OPEN_DOWNGRADE", |
58e7b33a | 1521 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1522 | }, |
1523 | [OP_PUTFH] = { | |
1524 | .op_func = (nfsd4op_func)nfsd4_putfh, | |
68d93184 | 1525 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1526 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1527 | .op_name = "OP_PUTFH", |
58e7b33a | 1528 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1529 | }, |
eeac294e | 1530 | [OP_PUTPUBFH] = { |
a1c8c4d1 | 1531 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
68d93184 | 1532 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1533 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1534 | .op_name = "OP_PUTPUBFH", |
58e7b33a | 1535 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
eeac294e | 1536 | }, |
b591480b BF |
1537 | [OP_PUTROOTFH] = { |
1538 | .op_func = (nfsd4op_func)nfsd4_putrootfh, | |
68d93184 | 1539 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1540 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1541 | .op_name = "OP_PUTROOTFH", |
58e7b33a | 1542 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1543 | }, |
1544 | [OP_READ] = { | |
1545 | .op_func = (nfsd4op_func)nfsd4_read, | |
58e7b33a | 1546 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1547 | .op_name = "OP_READ", |
58e7b33a | 1548 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
b591480b BF |
1549 | }, |
1550 | [OP_READDIR] = { | |
1551 | .op_func = (nfsd4op_func)nfsd4_readdir, | |
58e7b33a | 1552 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1553 | .op_name = "OP_READDIR", |
58e7b33a | 1554 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
b591480b BF |
1555 | }, |
1556 | [OP_READLINK] = { | |
1557 | .op_func = (nfsd4op_func)nfsd4_readlink, | |
b001a1b6 | 1558 | .op_name = "OP_READLINK", |
b591480b BF |
1559 | }, |
1560 | [OP_REMOVE] = { | |
1561 | .op_func = (nfsd4op_func)nfsd4_remove, | |
c856694e | 1562 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1563 | .op_name = "OP_REMOVE", |
58e7b33a | 1564 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
b591480b BF |
1565 | }, |
1566 | [OP_RENAME] = { | |
1567 | .op_func = (nfsd4op_func)nfsd4_rename, | |
c856694e | 1568 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1569 | .op_name = "OP_RENAME", |
58e7b33a | 1570 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
b591480b BF |
1571 | }, |
1572 | [OP_RENEW] = { | |
1573 | .op_func = (nfsd4op_func)nfsd4_renew, | |
58e7b33a MJ |
1574 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1575 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1576 | .op_name = "OP_RENEW", |
58e7b33a MJ |
1577 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
1578 | ||
b591480b BF |
1579 | }, |
1580 | [OP_RESTOREFH] = { | |
1581 | .op_func = (nfsd4op_func)nfsd4_restorefh, | |
68d93184 | 1582 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1583 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1584 | .op_name = "OP_RESTOREFH", |
58e7b33a | 1585 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1586 | }, |
1587 | [OP_SAVEFH] = { | |
1588 | .op_func = (nfsd4op_func)nfsd4_savefh, | |
58e7b33a | 1589 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1590 | .op_name = "OP_SAVEFH", |
58e7b33a | 1591 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1592 | }, |
dcb488a3 AA |
1593 | [OP_SECINFO] = { |
1594 | .op_func = (nfsd4op_func)nfsd4_secinfo, | |
68d93184 | 1595 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1596 | .op_name = "OP_SECINFO", |
dcb488a3 | 1597 | }, |
b591480b BF |
1598 | [OP_SETATTR] = { |
1599 | .op_func = (nfsd4op_func)nfsd4_setattr, | |
b001a1b6 | 1600 | .op_name = "OP_SETATTR", |
c856694e | 1601 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1602 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
b591480b BF |
1603 | }, |
1604 | [OP_SETCLIENTID] = { | |
1605 | .op_func = (nfsd4op_func)nfsd4_setclientid, | |
58e7b33a | 1606 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1607 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1608 | .op_name = "OP_SETCLIENTID", |
58e7b33a | 1609 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
b591480b BF |
1610 | }, |
1611 | [OP_SETCLIENTID_CONFIRM] = { | |
1612 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, | |
58e7b33a | 1613 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1614 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1615 | .op_name = "OP_SETCLIENTID_CONFIRM", |
58e7b33a | 1616 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1617 | }, |
1618 | [OP_VERIFY] = { | |
1619 | .op_func = (nfsd4op_func)nfsd4_verify, | |
b001a1b6 | 1620 | .op_name = "OP_VERIFY", |
b591480b BF |
1621 | }, |
1622 | [OP_WRITE] = { | |
1623 | .op_func = (nfsd4op_func)nfsd4_write, | |
c856694e | 1624 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1625 | .op_name = "OP_WRITE", |
58e7b33a | 1626 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
b591480b BF |
1627 | }, |
1628 | [OP_RELEASE_LOCKOWNER] = { | |
1629 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, | |
58e7b33a MJ |
1630 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1631 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1632 | .op_name = "OP_RELEASE_LOCKOWNER", |
58e7b33a | 1633 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1634 | }, |
069b6ad4 AA |
1635 | |
1636 | /* NFSv4.1 operations */ | |
1637 | [OP_EXCHANGE_ID] = { | |
1638 | .op_func = (nfsd4op_func)nfsd4_exchange_id, | |
58e7b33a MJ |
1639 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1640 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1641 | .op_name = "OP_EXCHANGE_ID", |
58e7b33a | 1642 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
069b6ad4 | 1643 | }, |
1d1bc8f2 BF |
1644 | [OP_BIND_CONN_TO_SESSION] = { |
1645 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, | |
58e7b33a MJ |
1646 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1647 | | OP_MODIFIES_SOMETHING, | |
1d1bc8f2 | 1648 | .op_name = "OP_BIND_CONN_TO_SESSION", |
58e7b33a | 1649 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
1d1bc8f2 | 1650 | }, |
069b6ad4 AA |
1651 | [OP_CREATE_SESSION] = { |
1652 | .op_func = (nfsd4op_func)nfsd4_create_session, | |
58e7b33a MJ |
1653 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1654 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1655 | .op_name = "OP_CREATE_SESSION", |
58e7b33a | 1656 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
069b6ad4 AA |
1657 | }, |
1658 | [OP_DESTROY_SESSION] = { | |
1659 | .op_func = (nfsd4op_func)nfsd4_destroy_session, | |
58e7b33a MJ |
1660 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1661 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1662 | .op_name = "OP_DESTROY_SESSION", |
58e7b33a | 1663 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
069b6ad4 AA |
1664 | }, |
1665 | [OP_SEQUENCE] = { | |
1666 | .op_func = (nfsd4op_func)nfsd4_sequence, | |
f9bb94c4 | 1667 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1668 | .op_name = "OP_SEQUENCE", |
1669 | }, | |
094b5d74 | 1670 | [OP_DESTROY_CLIENTID] = { |
345c2842 | 1671 | .op_func = (nfsd4op_func)nfsd4_destroy_clientid, |
58e7b33a MJ |
1672 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1673 | | OP_MODIFIES_SOMETHING, | |
094b5d74 | 1674 | .op_name = "OP_DESTROY_CLIENTID", |
58e7b33a | 1675 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
094b5d74 | 1676 | }, |
4dc6ec00 BF |
1677 | [OP_RECLAIM_COMPLETE] = { |
1678 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, | |
58e7b33a | 1679 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
4dc6ec00 | 1680 | .op_name = "OP_RECLAIM_COMPLETE", |
58e7b33a | 1681 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
4dc6ec00 | 1682 | }, |
04f4ad16 BF |
1683 | [OP_SECINFO_NO_NAME] = { |
1684 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, | |
68d93184 | 1685 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 BF |
1686 | .op_name = "OP_SECINFO_NO_NAME", |
1687 | }, | |
17456804 BS |
1688 | [OP_TEST_STATEID] = { |
1689 | .op_func = (nfsd4op_func)nfsd4_test_stateid, | |
1690 | .op_flags = ALLOWED_WITHOUT_FH, | |
1691 | .op_name = "OP_TEST_STATEID", | |
1692 | }, | |
e1ca12df BS |
1693 | [OP_FREE_STATEID] = { |
1694 | .op_func = (nfsd4op_func)nfsd4_free_stateid, | |
58e7b33a | 1695 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
e1ca12df | 1696 | .op_name = "OP_FREE_STATEID", |
58e7b33a | 1697 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
e1ca12df | 1698 | }, |
b591480b BF |
1699 | }; |
1700 | ||
f1c7f79b | 1701 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
1702 | { |
1703 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
1704 | return nfsd4_ops[opnum].op_name; | |
1705 | return "unknown_operation"; | |
1706 | } | |
1707 | ||
1da177e4 | 1708 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
1709 | struct nfsd4_voidargs { int dummy; }; |
1710 | ||
1da177e4 | 1711 | static struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f YZ |
1712 | [NFSPROC4_NULL] = { |
1713 | .pc_func = (svc_procfunc) nfsd4_proc_null, | |
1714 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, | |
1715 | .pc_argsize = sizeof(struct nfsd4_voidargs), | |
1716 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
1717 | .pc_cachetype = RC_NOCACHE, | |
1718 | .pc_xdrressize = 1, | |
1719 | }, | |
1720 | [NFSPROC4_COMPOUND] = { | |
1721 | .pc_func = (svc_procfunc) nfsd4_proc_compound, | |
1722 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, | |
1723 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, | |
1724 | .pc_argsize = sizeof(struct nfsd4_compoundargs), | |
1725 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 1726 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
1727 | .pc_cachetype = RC_NOCACHE, |
1728 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
1729 | }, | |
1da177e4 LT |
1730 | }; |
1731 | ||
1732 | struct svc_version nfsd_version4 = { | |
1733 | .vs_vers = 4, | |
1734 | .vs_nproc = 2, | |
1735 | .vs_proc = nfsd_procedures4, | |
1736 | .vs_dispatch = nfsd_dispatch, | |
1737 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
1738 | }; | |
1739 | ||
1740 | /* | |
1741 | * Local variables: | |
1742 | * c-basic-offset: 8 | |
1743 | * End: | |
1744 | */ |