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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); |
83071114 | 456 | cstate->current_stateid = cstate->save_stateid; |
1da177e4 LT |
457 | return nfs_ok; |
458 | } | |
459 | ||
7191155b | 460 | static __be32 |
b591480b BF |
461 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
462 | void *arg) | |
1da177e4 | 463 | { |
ca364317 | 464 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
465 | return nfserr_nofilehandle; |
466 | ||
ca364317 | 467 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
83071114 | 468 | cstate->save_stateid = cstate->current_stateid; |
1da177e4 LT |
469 | return nfs_ok; |
470 | } | |
471 | ||
472 | /* | |
473 | * misc nfsv4 ops | |
474 | */ | |
7191155b | 475 | static __be32 |
ca364317 BF |
476 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
477 | struct nfsd4_access *access) | |
1da177e4 LT |
478 | { |
479 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) | |
480 | return nfserr_inval; | |
481 | ||
482 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
483 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
484 | &access->ac_supported); | |
1da177e4 LT |
485 | } |
486 | ||
7191155b | 487 | static __be32 |
ca364317 BF |
488 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
489 | struct nfsd4_commit *commit) | |
1da177e4 | 490 | { |
1da177e4 LT |
491 | u32 *p = (u32 *)commit->co_verf.data; |
492 | *p++ = nfssvc_boot.tv_sec; | |
493 | *p++ = nfssvc_boot.tv_usec; | |
494 | ||
75c096f7 | 495 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
ca364317 | 496 | commit->co_count); |
1da177e4 LT |
497 | } |
498 | ||
b37ad28b | 499 | static __be32 |
ca364317 BF |
500 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
501 | struct nfsd4_create *create) | |
1da177e4 LT |
502 | { |
503 | struct svc_fh resfh; | |
b37ad28b | 504 | __be32 status; |
1da177e4 LT |
505 | dev_t rdev; |
506 | ||
507 | fh_init(&resfh, NFS4_FHSIZE); | |
508 | ||
8837abca MS |
509 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
510 | NFSD_MAY_CREATE); | |
1da177e4 LT |
511 | if (status) |
512 | return status; | |
513 | ||
3c8e0316 YZ |
514 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
515 | nfsd_attrmask); | |
516 | if (status) | |
517 | return status; | |
518 | ||
1da177e4 LT |
519 | switch (create->cr_type) { |
520 | case NF4LNK: | |
521 | /* ugh! we have to null-terminate the linktext, or | |
522 | * vfs_symlink() will choke. it is always safe to | |
523 | * null-terminate by brute force, since at worst we | |
524 | * will overwrite the first byte of the create namelen | |
525 | * in the XDR buffer, which has already been extracted | |
526 | * during XDR decode. | |
527 | */ | |
528 | create->cr_linkname[create->cr_linklen] = 0; | |
529 | ||
ca364317 BF |
530 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
531 | create->cr_name, create->cr_namelen, | |
532 | create->cr_linkname, create->cr_linklen, | |
533 | &resfh, &create->cr_iattr); | |
1da177e4 LT |
534 | break; |
535 | ||
536 | case NF4BLK: | |
537 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
538 | if (MAJOR(rdev) != create->cr_specdata1 || | |
539 | MINOR(rdev) != create->cr_specdata2) | |
540 | return nfserr_inval; | |
ca364317 BF |
541 | status = nfsd_create(rqstp, &cstate->current_fh, |
542 | create->cr_name, create->cr_namelen, | |
543 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
544 | break; |
545 | ||
546 | case NF4CHR: | |
547 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
548 | if (MAJOR(rdev) != create->cr_specdata1 || | |
549 | MINOR(rdev) != create->cr_specdata2) | |
550 | return nfserr_inval; | |
ca364317 BF |
551 | status = nfsd_create(rqstp, &cstate->current_fh, |
552 | create->cr_name, create->cr_namelen, | |
553 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
554 | break; |
555 | ||
556 | case NF4SOCK: | |
ca364317 BF |
557 | status = nfsd_create(rqstp, &cstate->current_fh, |
558 | create->cr_name, create->cr_namelen, | |
559 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
560 | break; |
561 | ||
562 | case NF4FIFO: | |
ca364317 BF |
563 | status = nfsd_create(rqstp, &cstate->current_fh, |
564 | create->cr_name, create->cr_namelen, | |
565 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
566 | break; |
567 | ||
568 | case NF4DIR: | |
569 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
570 | status = nfsd_create(rqstp, &cstate->current_fh, |
571 | create->cr_name, create->cr_namelen, | |
572 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
573 | break; |
574 | ||
575 | default: | |
576 | status = nfserr_badtype; | |
577 | } | |
578 | ||
9208faf2 YZ |
579 | if (status) |
580 | goto out; | |
1da177e4 | 581 | |
9208faf2 YZ |
582 | if (create->cr_acl != NULL) |
583 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
584 | create->cr_bmval); | |
585 | ||
586 | fh_unlock(&cstate->current_fh); | |
587 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
588 | fh_dup2(&cstate->current_fh, &resfh); | |
589 | out: | |
1da177e4 LT |
590 | fh_put(&resfh); |
591 | return status; | |
592 | } | |
593 | ||
7191155b | 594 | static __be32 |
ca364317 BF |
595 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
596 | struct nfsd4_getattr *getattr) | |
1da177e4 | 597 | { |
b37ad28b | 598 | __be32 status; |
1da177e4 | 599 | |
8837abca | 600 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
601 | if (status) |
602 | return status; | |
603 | ||
604 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
605 | return nfserr_inval; | |
606 | ||
7e705706 AA |
607 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
608 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
609 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 610 | |
ca364317 | 611 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
612 | return nfs_ok; |
613 | } | |
614 | ||
7191155b | 615 | static __be32 |
ca364317 BF |
616 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
617 | struct nfsd4_link *link) | |
1da177e4 | 618 | { |
b37ad28b | 619 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 620 | |
ca364317 | 621 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 622 | return status; |
ca364317 BF |
623 | status = nfsd_link(rqstp, &cstate->current_fh, |
624 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 625 | if (!status) |
ca364317 | 626 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
627 | return status; |
628 | } | |
629 | ||
0ff7ab46 | 630 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
631 | { |
632 | struct svc_fh tmp_fh; | |
b37ad28b | 633 | __be32 ret; |
1da177e4 LT |
634 | |
635 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
636 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
637 | if (ret) | |
1da177e4 | 638 | return ret; |
0ff7ab46 | 639 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
640 | fh_put(&tmp_fh); |
641 | return nfserr_noent; | |
642 | } | |
643 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
644 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
645 | } | |
646 | ||
647 | static __be32 | |
648 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
649 | void *arg) | |
650 | { | |
651 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
652 | } |
653 | ||
7191155b | 654 | static __be32 |
ca364317 BF |
655 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
656 | struct nfsd4_lookup *lookup) | |
1da177e4 | 657 | { |
ca364317 BF |
658 | return nfsd_lookup(rqstp, &cstate->current_fh, |
659 | lookup->lo_name, lookup->lo_len, | |
660 | &cstate->current_fh); | |
1da177e4 LT |
661 | } |
662 | ||
7191155b | 663 | static __be32 |
ca364317 BF |
664 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
665 | struct nfsd4_read *read) | |
1da177e4 | 666 | { |
b37ad28b | 667 | __be32 status; |
1da177e4 LT |
668 | |
669 | /* no need to check permission - this will be done in nfsd_read() */ | |
670 | ||
7e06b7f9 | 671 | read->rd_filp = NULL; |
1da177e4 LT |
672 | if (read->rd_offset >= OFFSET_MAX) |
673 | return nfserr_inval; | |
674 | ||
675 | nfs4_lock_state(); | |
676 | /* check stateid */ | |
dd453dfd BH |
677 | if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid, |
678 | RD_STATE, &read->rd_filp))) { | |
1da177e4 LT |
679 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
680 | goto out; | |
681 | } | |
7e06b7f9 N |
682 | if (read->rd_filp) |
683 | get_file(read->rd_filp); | |
1da177e4 LT |
684 | status = nfs_ok; |
685 | out: | |
686 | nfs4_unlock_state(); | |
687 | read->rd_rqstp = rqstp; | |
ca364317 | 688 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
689 | return status; |
690 | } | |
691 | ||
7191155b | 692 | static __be32 |
ca364317 BF |
693 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
694 | struct nfsd4_readdir *readdir) | |
1da177e4 LT |
695 | { |
696 | u64 cookie = readdir->rd_cookie; | |
697 | static const nfs4_verifier zeroverf; | |
698 | ||
699 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
700 | ||
701 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
702 | return nfserr_inval; | |
703 | ||
7e705706 AA |
704 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
705 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
706 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 707 | |
832023bf | 708 | if ((cookie == 1) || (cookie == 2) || |
1da177e4 LT |
709 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
710 | return nfserr_bad_cookie; | |
711 | ||
712 | readdir->rd_rqstp = rqstp; | |
ca364317 | 713 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
714 | return nfs_ok; |
715 | } | |
716 | ||
7191155b | 717 | static __be32 |
ca364317 BF |
718 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
719 | struct nfsd4_readlink *readlink) | |
1da177e4 LT |
720 | { |
721 | readlink->rl_rqstp = rqstp; | |
ca364317 | 722 | readlink->rl_fhp = &cstate->current_fh; |
1da177e4 LT |
723 | return nfs_ok; |
724 | } | |
725 | ||
7191155b | 726 | static __be32 |
ca364317 BF |
727 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
728 | struct nfsd4_remove *remove) | |
1da177e4 | 729 | { |
b37ad28b | 730 | __be32 status; |
1da177e4 | 731 | |
af558e33 | 732 | if (locks_in_grace()) |
c815afc7 | 733 | return nfserr_grace; |
ca364317 BF |
734 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
735 | remove->rm_name, remove->rm_namelen); | |
1da177e4 | 736 | if (!status) { |
ca364317 BF |
737 | fh_unlock(&cstate->current_fh); |
738 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
739 | } |
740 | return status; | |
741 | } | |
742 | ||
7191155b | 743 | static __be32 |
ca364317 BF |
744 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
745 | struct nfsd4_rename *rename) | |
1da177e4 | 746 | { |
b37ad28b | 747 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 748 | |
ca364317 | 749 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 750 | return status; |
af558e33 | 751 | if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags |
c815afc7 N |
752 | & NFSEXP_NOSUBTREECHECK)) |
753 | return nfserr_grace; | |
ca364317 BF |
754 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
755 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 LT |
756 | rename->rn_tname, rename->rn_tnamelen); |
757 | ||
758 | /* the underlying filesystem returns different error's than required | |
759 | * by NFSv4. both save_fh and current_fh have been verified.. */ | |
760 | if (status == nfserr_isdir) | |
761 | status = nfserr_exist; | |
762 | else if ((status == nfserr_notdir) && | |
ca364317 BF |
763 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
764 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) | |
1da177e4 | 765 | status = nfserr_exist; |
1da177e4 LT |
766 | |
767 | if (!status) { | |
ca364317 BF |
768 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
769 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
1da177e4 LT |
770 | } |
771 | return status; | |
772 | } | |
773 | ||
dcb488a3 AA |
774 | static __be32 |
775 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
776 | struct nfsd4_secinfo *secinfo) | |
777 | { | |
778 | struct svc_fh resfh; | |
779 | struct svc_export *exp; | |
780 | struct dentry *dentry; | |
781 | __be32 err; | |
782 | ||
783 | fh_init(&resfh, NFS4_FHSIZE); | |
29a78a3e BF |
784 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
785 | if (err) | |
786 | return err; | |
dcb488a3 AA |
787 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
788 | secinfo->si_name, secinfo->si_namelen, | |
789 | &exp, &dentry); | |
790 | if (err) | |
791 | return err; | |
792 | if (dentry->d_inode == NULL) { | |
793 | exp_put(exp); | |
794 | err = nfserr_noent; | |
795 | } else | |
796 | secinfo->si_exp = exp; | |
797 | dput(dentry); | |
56560b9a BF |
798 | if (cstate->minorversion) |
799 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
800 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
801 | return err; |
802 | } | |
803 | ||
04f4ad16 BF |
804 | static __be32 |
805 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
806 | struct nfsd4_secinfo_no_name *sin) | |
807 | { | |
808 | __be32 err; | |
809 | ||
810 | switch (sin->sin_style) { | |
811 | case NFS4_SECINFO_STYLE4_CURRENT_FH: | |
812 | break; | |
813 | case NFS4_SECINFO_STYLE4_PARENT: | |
814 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
815 | if (err) | |
816 | return err; | |
817 | break; | |
818 | default: | |
819 | return nfserr_inval; | |
820 | } | |
821 | exp_get(cstate->current_fh.fh_export); | |
822 | sin->sin_exp = cstate->current_fh.fh_export; | |
823 | fh_put(&cstate->current_fh); | |
824 | return nfs_ok; | |
825 | } | |
826 | ||
7191155b | 827 | static __be32 |
ca364317 BF |
828 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
829 | struct nfsd4_setattr *setattr) | |
1da177e4 | 830 | { |
b37ad28b | 831 | __be32 status = nfs_ok; |
1da177e4 | 832 | |
1da177e4 LT |
833 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
834 | nfs4_lock_state(); | |
dd453dfd | 835 | status = nfs4_preprocess_stateid_op(cstate, |
6150ef0d | 836 | &setattr->sa_stateid, WR_STATE, NULL); |
1da177e4 | 837 | nfs4_unlock_state(); |
375c5547 | 838 | if (status) { |
3e3b4800 | 839 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
840 | return status; |
841 | } | |
1da177e4 | 842 | } |
bad0dcff | 843 | status = fh_want_write(&cstate->current_fh); |
18f335af DH |
844 | if (status) |
845 | return status; | |
1da177e4 | 846 | status = nfs_ok; |
3c8e0316 YZ |
847 | |
848 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
849 | nfsd_attrmask); | |
850 | if (status) | |
851 | goto out; | |
852 | ||
1da177e4 | 853 | if (setattr->sa_acl != NULL) |
ca364317 BF |
854 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
855 | setattr->sa_acl); | |
1da177e4 | 856 | if (status) |
18f335af | 857 | goto out; |
ca364317 | 858 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 859 | 0, (time_t)0); |
18f335af | 860 | out: |
bad0dcff | 861 | fh_drop_write(&cstate->current_fh); |
1da177e4 LT |
862 | return status; |
863 | } | |
864 | ||
7191155b | 865 | static __be32 |
ca364317 BF |
866 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
867 | struct nfsd4_write *write) | |
1da177e4 LT |
868 | { |
869 | stateid_t *stateid = &write->wr_stateid; | |
870 | struct file *filp = NULL; | |
871 | u32 *p; | |
b37ad28b | 872 | __be32 status = nfs_ok; |
31dec253 | 873 | unsigned long cnt; |
1da177e4 LT |
874 | |
875 | /* no need to check permission - this will be done in nfsd_write() */ | |
876 | ||
877 | if (write->wr_offset >= OFFSET_MAX) | |
878 | return nfserr_inval; | |
879 | ||
880 | nfs4_lock_state(); | |
dd453dfd | 881 | status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp); |
7e06b7f9 N |
882 | if (filp) |
883 | get_file(filp); | |
1da177e4 LT |
884 | nfs4_unlock_state(); |
885 | ||
375c5547 BF |
886 | if (status) { |
887 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); | |
888 | return status; | |
889 | } | |
890 | ||
31dec253 | 891 | cnt = write->wr_buflen; |
1da177e4 LT |
892 | write->wr_how_written = write->wr_stable_how; |
893 | p = (u32 *)write->wr_verifier.data; | |
894 | *p++ = nfssvc_boot.tv_sec; | |
895 | *p++ = nfssvc_boot.tv_usec; | |
896 | ||
ca364317 BF |
897 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
898 | write->wr_offset, rqstp->rq_vec, write->wr_vlen, | |
31dec253 | 899 | &cnt, &write->wr_how_written); |
7e06b7f9 N |
900 | if (filp) |
901 | fput(filp); | |
1da177e4 | 902 | |
31dec253 DS |
903 | write->wr_bytes_written = cnt; |
904 | ||
1da177e4 | 905 | return status; |
1da177e4 LT |
906 | } |
907 | ||
908 | /* This routine never returns NFS_OK! If there are no other errors, it | |
909 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
910 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
911 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
912 | */ | |
b37ad28b | 913 | static __be32 |
c954e2a5 | 914 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 915 | struct nfsd4_verify *verify) |
1da177e4 | 916 | { |
2ebbc012 | 917 | __be32 *buf, *p; |
1da177e4 | 918 | int count; |
b37ad28b | 919 | __be32 status; |
1da177e4 | 920 | |
8837abca | 921 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
922 | if (status) |
923 | return status; | |
924 | ||
3c8e0316 YZ |
925 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
926 | if (status) | |
927 | return status; | |
928 | ||
1da177e4 LT |
929 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
930 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
931 | return nfserr_inval; | |
932 | if (verify->ve_attrlen & 3) | |
933 | return nfserr_inval; | |
934 | ||
935 | /* count in words: | |
936 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
937 | */ | |
938 | count = 4 + (verify->ve_attrlen >> 2); | |
939 | buf = kmalloc(count << 2, GFP_KERNEL); | |
940 | if (!buf) | |
3e772463 | 941 | return nfserr_jukebox; |
1da177e4 | 942 | |
ca364317 BF |
943 | status = nfsd4_encode_fattr(&cstate->current_fh, |
944 | cstate->current_fh.fh_export, | |
945 | cstate->current_fh.fh_dentry, buf, | |
1da177e4 | 946 | &count, verify->ve_bmval, |
406a7ea9 | 947 | rqstp, 0); |
1da177e4 LT |
948 | |
949 | /* this means that nfsd4_encode_fattr() ran out of space */ | |
950 | if (status == nfserr_resource && count == 0) | |
951 | status = nfserr_not_same; | |
952 | if (status) | |
953 | goto out_kfree; | |
954 | ||
95ec28cd BH |
955 | /* skip bitmap */ |
956 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
957 | status = nfserr_not_same; |
958 | if (ntohl(*p++) != verify->ve_attrlen) | |
959 | goto out_kfree; | |
960 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
961 | status = nfserr_same; | |
962 | ||
963 | out_kfree: | |
964 | kfree(buf); | |
965 | return status; | |
966 | } | |
967 | ||
c954e2a5 BF |
968 | static __be32 |
969 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
970 | struct nfsd4_verify *verify) | |
971 | { | |
972 | __be32 status; | |
973 | ||
974 | status = _nfsd4_verify(rqstp, cstate, verify); | |
975 | return status == nfserr_not_same ? nfs_ok : status; | |
976 | } | |
977 | ||
978 | static __be32 | |
979 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
980 | struct nfsd4_verify *verify) | |
981 | { | |
982 | __be32 status; | |
983 | ||
984 | status = _nfsd4_verify(rqstp, cstate, verify); | |
985 | return status == nfserr_same ? nfs_ok : status; | |
986 | } | |
987 | ||
1da177e4 LT |
988 | /* |
989 | * NULL call. | |
990 | */ | |
7111c66e | 991 | static __be32 |
1da177e4 LT |
992 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
993 | { | |
994 | return nfs_ok; | |
995 | } | |
996 | ||
e2b20950 SA |
997 | static inline void nfsd4_increment_op_stats(u32 opnum) |
998 | { | |
999 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
1000 | nfsdstats.nfs4_opcount[opnum]++; | |
1001 | } | |
1002 | ||
b591480b BF |
1003 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
1004 | void *); | |
58e7b33a | 1005 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
8b70484c TM |
1006 | typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *); |
1007 | typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *); | |
58e7b33a | 1008 | |
f9bb94c4 AA |
1009 | enum nfsd4_op_flags { |
1010 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ | |
5ece3caf MJ |
1011 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
1012 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ | |
68d93184 BF |
1013 | /* For rfc 5661 section 2.6.3.1.1: */ |
1014 | OP_HANDLES_WRONGSEC = 1 << 3, | |
1015 | OP_IS_PUTFH_LIKE = 1 << 4, | |
1091006c | 1016 | /* |
c856694e BF |
1017 | * These are the ops whose result size we estimate before |
1018 | * encoding, to avoid performing an op then not being able to | |
1019 | * respond or cache a response. This includes writes and setattrs | |
1020 | * as well as the operations usually called "nonidempotent": | |
1021 | */ | |
1022 | OP_MODIFIES_SOMETHING = 1 << 5, | |
1023 | /* | |
1024 | * Cache compounds containing these ops in the xid-based drc: | |
1091006c BF |
1025 | * We use the DRC for compounds containing non-idempotent |
1026 | * operations, *except* those that are 4.1-specific (since | |
1027 | * sessions provide their own EOS), and except for stateful | |
1028 | * operations other than setclientid and setclientid_confirm | |
1029 | * (since sequence numbers provide EOS for open, lock, etc in | |
1030 | * the v4.0 case). | |
1031 | */ | |
c856694e | 1032 | OP_CACHEME = 1 << 6, |
8b70484c TM |
1033 | /* |
1034 | * These are ops which clear current state id. | |
1035 | */ | |
1036 | OP_CLEAR_STATEID = 1 << 7, | |
c856694e BF |
1037 | }; |
1038 | ||
1039 | struct nfsd4_operation { | |
1040 | nfsd4op_func op_func; | |
1041 | u32 op_flags; | |
1042 | char *op_name; | |
58e7b33a MJ |
1043 | /* Try to get response size before operation */ |
1044 | nfsd4op_rsize op_rsize_bop; | |
8b70484c TM |
1045 | stateid_setter op_get_currentstateid; |
1046 | stateid_getter op_set_currentstateid; | |
b591480b BF |
1047 | }; |
1048 | ||
1049 | static struct nfsd4_operation nfsd4_ops[]; | |
1050 | ||
f1c7f79b | 1051 | static const char *nfsd4_op_name(unsigned opnum); |
b001a1b6 | 1052 | |
f9bb94c4 | 1053 | /* |
57716355 | 1054 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1055 | * |
57716355 BF |
1056 | * Also note, enforced elsewhere: |
1057 | * - SEQUENCE other than as first op results in | |
1058 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1059 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1060 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1061 | * - DESTROY_SESSION must be the final operation in a compound, if |
1062 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1063 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1064 | */ |
57716355 | 1065 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1066 | { |
57716355 BF |
1067 | struct nfsd4_op *op = &args->ops[0]; |
1068 | ||
1069 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1070 | if (args->minorversion == 0) | |
1071 | return nfs_ok; | |
1072 | /* This is weird, but OK, not our problem: */ | |
1073 | if (args->opcnt == 0) | |
1074 | return nfs_ok; | |
1075 | if (op->status == nfserr_op_illegal) | |
1076 | return nfs_ok; | |
1077 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1078 | return nfserr_op_not_in_session; | |
1079 | if (op->opnum == OP_SEQUENCE) | |
1080 | return nfs_ok; | |
1081 | if (args->opcnt != 1) | |
1082 | return nfserr_not_only_op; | |
1083 | return nfs_ok; | |
f9bb94c4 AA |
1084 | } |
1085 | ||
22b03214 BF |
1086 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
1087 | { | |
1088 | return &nfsd4_ops[op->opnum]; | |
1089 | } | |
1090 | ||
1091006c BF |
1091 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1092 | { | |
c856694e | 1093 | return OPDESC(op)->op_flags & OP_CACHEME; |
1091006c BF |
1094 | } |
1095 | ||
68d93184 BF |
1096 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1097 | { | |
1098 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1099 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1100 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1101 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
1102 | struct nfsd4_operation *thisd; | |
1103 | struct nfsd4_operation *nextd; | |
1104 | ||
1105 | thisd = OPDESC(this); | |
1106 | /* | |
1107 | * Most ops check wronsec on our own; only the putfh-like ops | |
1108 | * have special rules. | |
1109 | */ | |
1110 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1111 | return false; | |
1112 | /* | |
1113 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1114 | * put-filehandle operation if we're not going to use the | |
1115 | * result: | |
1116 | */ | |
1117 | if (argp->opcnt == resp->opcnt) | |
1118 | return false; | |
1119 | ||
1120 | nextd = OPDESC(next); | |
1121 | /* | |
1122 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1123 | * errors themselves as necessary; others should check for them | |
1124 | * now: | |
1125 | */ | |
1126 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1127 | } | |
1128 | ||
1da177e4 LT |
1129 | /* |
1130 | * COMPOUND call. | |
1131 | */ | |
7111c66e | 1132 | static __be32 |
1da177e4 LT |
1133 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
1134 | struct nfsd4_compoundargs *args, | |
1135 | struct nfsd4_compoundres *resp) | |
1136 | { | |
1137 | struct nfsd4_op *op; | |
b591480b | 1138 | struct nfsd4_operation *opdesc; |
e354d571 | 1139 | struct nfsd4_compound_state *cstate = &resp->cstate; |
e5710199 | 1140 | int slack_bytes; |
58e7b33a | 1141 | u32 plen = 0; |
b37ad28b | 1142 | __be32 status; |
1da177e4 | 1143 | |
1da177e4 | 1144 | resp->xbuf = &rqstp->rq_res; |
e354d571 AA |
1145 | resp->p = rqstp->rq_res.head[0].iov_base + |
1146 | rqstp->rq_res.head[0].iov_len; | |
1da177e4 LT |
1147 | resp->tagp = resp->p; |
1148 | /* reserve space for: taglen, tag, and opcnt */ | |
1149 | resp->p += 2 + XDR_QUADLEN(args->taglen); | |
1150 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; | |
1151 | resp->taglen = args->taglen; | |
1152 | resp->tag = args->tag; | |
1153 | resp->opcnt = 0; | |
1154 | resp->rqstp = rqstp; | |
d87a8ade | 1155 | resp->cstate.minorversion = args->minorversion; |
e354d571 | 1156 | resp->cstate.replay_owner = NULL; |
26c0c75e | 1157 | resp->cstate.session = NULL; |
e354d571 AA |
1158 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
1159 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1160 | /* |
1161 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1162 | * too hard to avoid non-idempotency problems. | |
1163 | */ | |
1164 | rqstp->rq_usedeferral = 0; | |
1da177e4 LT |
1165 | |
1166 | /* | |
1167 | * According to RFC3010, this takes precedence over all other errors. | |
1168 | */ | |
1169 | status = nfserr_minor_vers_mismatch; | |
8daf220a | 1170 | if (args->minorversion > nfsd_supported_minorversion) |
1da177e4 LT |
1171 | goto out; |
1172 | ||
57716355 BF |
1173 | status = nfs41_check_op_ordering(args); |
1174 | if (status) { | |
f9bb94c4 | 1175 | op = &args->ops[0]; |
57716355 | 1176 | op->status = status; |
f9bb94c4 AA |
1177 | goto encode_op; |
1178 | } | |
1179 | ||
1da177e4 LT |
1180 | while (!status && resp->opcnt < args->opcnt) { |
1181 | op = &args->ops[resp->opcnt++]; | |
1182 | ||
b001a1b6 BH |
1183 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
1184 | resp->opcnt, args->opcnt, op->opnum, | |
1185 | nfsd4_op_name(op->opnum)); | |
1da177e4 LT |
1186 | /* |
1187 | * The XDR decode routines may have pre-set op->status; | |
1188 | * for example, if there is a miscellaneous XDR error | |
1189 | * it will be set to nfserr_bad_xdr. | |
1190 | */ | |
1191 | if (op->status) | |
1192 | goto encode_op; | |
1193 | ||
1194 | /* We must be able to encode a successful response to | |
1195 | * this operation, with enough room left over to encode a | |
1196 | * failed response to the next operation. If we don't | |
1197 | * have enough room, fail with ERR_RESOURCE. | |
1198 | */ | |
e5710199 BF |
1199 | slack_bytes = (char *)resp->end - (char *)resp->p; |
1200 | if (slack_bytes < COMPOUND_SLACK_SPACE | |
1201 | + COMPOUND_ERR_SLACK_SPACE) { | |
1202 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); | |
1da177e4 LT |
1203 | op->status = nfserr_resource; |
1204 | goto encode_op; | |
1205 | } | |
1206 | ||
22b03214 | 1207 | opdesc = OPDESC(op); |
b591480b | 1208 | |
ca364317 | 1209 | if (!cstate->current_fh.fh_dentry) { |
27d630ec | 1210 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1211 | op->status = nfserr_nofilehandle; |
1212 | goto encode_op; | |
1213 | } | |
eeac294e BF |
1214 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
1215 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { | |
42ca0993 | 1216 | op->status = nfserr_moved; |
1da177e4 LT |
1217 | goto encode_op; |
1218 | } | |
b591480b | 1219 | |
58e7b33a MJ |
1220 | /* If op is non-idempotent */ |
1221 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { | |
1222 | plen = opdesc->op_rsize_bop(rqstp, op); | |
1223 | op->status = nfsd4_check_resp_size(resp, plen); | |
1224 | } | |
1225 | ||
1226 | if (op->status) | |
1227 | goto encode_op; | |
1228 | ||
8b70484c TM |
1229 | if (opdesc->op_func) { |
1230 | if (opdesc->op_get_currentstateid) | |
1231 | opdesc->op_get_currentstateid(cstate, &op->u); | |
b591480b | 1232 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
8b70484c | 1233 | } else |
1da177e4 | 1234 | BUG_ON(op->status == nfs_ok); |
1da177e4 | 1235 | |
8b70484c TM |
1236 | if (!op->status) { |
1237 | if (opdesc->op_set_currentstateid) | |
1238 | opdesc->op_set_currentstateid(cstate, &op->u); | |
1239 | ||
1240 | if (opdesc->op_flags & OP_CLEAR_STATEID) | |
1241 | cstate->current_stateid = NULL; | |
1242 | ||
1243 | if (need_wrongsec_check(rqstp)) | |
1244 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); | |
1245 | } | |
68d93184 | 1246 | |
1da177e4 | 1247 | encode_op: |
49557cc7 | 1248 | /* Only from SEQUENCE */ |
da3846a2 AA |
1249 | if (resp->cstate.status == nfserr_replay_cache) { |
1250 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
abfabf8c | 1251 | status = op->status; |
da3846a2 AA |
1252 | goto out; |
1253 | } | |
a90b061c | 1254 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1255 | op->replay = &cstate->replay_owner->so_replay; |
1da177e4 LT |
1256 | nfsd4_encode_replay(resp, op); |
1257 | status = op->status = op->replay->rp_status; | |
1258 | } else { | |
1259 | nfsd4_encode_operation(resp, op); | |
1260 | status = op->status; | |
1261 | } | |
0407717d BH |
1262 | |
1263 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", | |
1264 | args->ops, args->opcnt, resp->opcnt, op->opnum, | |
1265 | be32_to_cpu(status)); | |
1266 | ||
a4f1706a | 1267 | if (cstate->replay_owner) { |
5ec094c1 | 1268 | nfs4_unlock_state(); |
a4f1706a | 1269 | cstate->replay_owner = NULL; |
1da177e4 | 1270 | } |
7e06b7f9 N |
1271 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
1272 | if (op->opnum == OP_READ && op->u.read.rd_filp) | |
1273 | fput(op->u.read.rd_filp); | |
e2b20950 SA |
1274 | |
1275 | nfsd4_increment_op_stats(op->opnum); | |
1da177e4 LT |
1276 | } |
1277 | ||
da3846a2 | 1278 | resp->cstate.status = status; |
e354d571 AA |
1279 | fh_put(&resp->cstate.current_fh); |
1280 | fh_put(&resp->cstate.save_fh); | |
1281 | BUG_ON(resp->cstate.replay_owner); | |
1da177e4 | 1282 | out: |
2f425878 AA |
1283 | /* Reset deferral mechanism for RPC deferrals */ |
1284 | rqstp->rq_usedeferral = 1; | |
3b12cd98 | 1285 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1286 | return status; |
1287 | } | |
1288 | ||
58e7b33a MJ |
1289 | #define op_encode_hdr_size (2) |
1290 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
1291 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1292 | #define op_encode_change_info_maxsz (5) | |
1293 | #define nfs4_fattr_bitmap_maxsz (4) | |
1294 | ||
1295 | #define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1296 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) | |
1297 | ||
1298 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1299 | ||
1300 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) | |
1301 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ | |
1302 | op_encode_ace_maxsz) | |
1303 | ||
1304 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) | |
1305 | ||
1306 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1307 | { | |
1308 | return (op_encode_hdr_size) * sizeof(__be32); | |
1309 | } | |
1310 | ||
1311 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1312 | { | |
1313 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); | |
1314 | } | |
1315 | ||
1316 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1317 | { | |
1318 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1319 | } | |
1320 | ||
1321 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1322 | { | |
1323 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1324 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1325 | } | |
1326 | ||
1327 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1328 | { | |
1329 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1330 | * sizeof(__be32); | |
1331 | } | |
1332 | ||
1333 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1334 | { | |
1335 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) | |
1336 | * sizeof(__be32); | |
1337 | } | |
1338 | ||
1339 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1340 | { | |
1341 | return (op_encode_hdr_size + op_encode_stateid_maxsz | |
1342 | + op_encode_change_info_maxsz + 1 | |
1343 | + nfs4_fattr_bitmap_maxsz | |
1344 | + op_encode_delegation_maxsz) * sizeof(__be32); | |
1345 | } | |
1346 | ||
1347 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1348 | { | |
1349 | u32 maxcount = 0, rlen = 0; | |
1350 | ||
1351 | maxcount = svc_max_payload(rqstp); | |
1352 | rlen = op->u.read.rd_length; | |
1353 | ||
1354 | if (rlen > maxcount) | |
1355 | rlen = maxcount; | |
1356 | ||
1357 | return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen; | |
1358 | } | |
1359 | ||
1360 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1361 | { | |
1362 | u32 rlen = op->u.readdir.rd_maxcount; | |
1363 | ||
1364 | if (rlen > PAGE_SIZE) | |
1365 | rlen = PAGE_SIZE; | |
1366 | ||
1367 | return (op_encode_hdr_size + op_encode_verifier_maxsz) | |
1368 | * sizeof(__be32) + rlen; | |
1369 | } | |
1370 | ||
1371 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1372 | { | |
1373 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1374 | * sizeof(__be32); | |
1375 | } | |
1376 | ||
1377 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1378 | { | |
1379 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1380 | + op_encode_change_info_maxsz) * sizeof(__be32); | |
1381 | } | |
1382 | ||
1383 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1384 | { | |
1385 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1386 | } | |
1387 | ||
1388 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1389 | { | |
1390 | return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32); | |
1391 | } | |
1392 | ||
1393 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1394 | { | |
1395 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1396 | } | |
1397 | ||
1398 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1399 | { | |
1400 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ | |
1401 | 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\ | |
1402 | 2 + /*eir_server_owner.so_minor_id */\ | |
1403 | /* eir_server_owner.so_major_id<> */\ | |
1404 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1405 | /* eir_server_scope<> */\ | |
1406 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1407 | 1 + /* eir_server_impl_id array length */\ | |
1408 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); | |
1409 | } | |
1410 | ||
1411 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1412 | { | |
1413 | return (op_encode_hdr_size + \ | |
1414 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ | |
1415 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); | |
1416 | } | |
1417 | ||
1418 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1419 | { | |
1420 | return (op_encode_hdr_size + \ | |
1421 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ | |
1422 | 2 + /* csr_sequence, csr_flags */\ | |
1423 | op_encode_channel_attrs_maxsz + \ | |
1424 | op_encode_channel_attrs_maxsz) * sizeof(__be32); | |
1425 | } | |
1426 | ||
20766016 | 1427 | static struct nfsd4_operation nfsd4_ops[] = { |
b591480b BF |
1428 | [OP_ACCESS] = { |
1429 | .op_func = (nfsd4op_func)nfsd4_access, | |
b001a1b6 | 1430 | .op_name = "OP_ACCESS", |
b591480b BF |
1431 | }, |
1432 | [OP_CLOSE] = { | |
1433 | .op_func = (nfsd4op_func)nfsd4_close, | |
58e7b33a | 1434 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1435 | .op_name = "OP_CLOSE", |
58e7b33a | 1436 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
8b70484c TM |
1437 | .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid, |
1438 | .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid, | |
b591480b BF |
1439 | }, |
1440 | [OP_COMMIT] = { | |
1441 | .op_func = (nfsd4op_func)nfsd4_commit, | |
58e7b33a | 1442 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1443 | .op_name = "OP_COMMIT", |
58e7b33a | 1444 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
b591480b BF |
1445 | }, |
1446 | [OP_CREATE] = { | |
1447 | .op_func = (nfsd4op_func)nfsd4_create, | |
d1471053 | 1448 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
b001a1b6 | 1449 | .op_name = "OP_CREATE", |
58e7b33a | 1450 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
b591480b BF |
1451 | }, |
1452 | [OP_DELEGRETURN] = { | |
1453 | .op_func = (nfsd4op_func)nfsd4_delegreturn, | |
58e7b33a | 1454 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1455 | .op_name = "OP_DELEGRETURN", |
58e7b33a | 1456 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
1457 | }, |
1458 | [OP_GETATTR] = { | |
1459 | .op_func = (nfsd4op_func)nfsd4_getattr, | |
eeac294e | 1460 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1461 | .op_name = "OP_GETATTR", |
b591480b BF |
1462 | }, |
1463 | [OP_GETFH] = { | |
1464 | .op_func = (nfsd4op_func)nfsd4_getfh, | |
b001a1b6 | 1465 | .op_name = "OP_GETFH", |
b591480b BF |
1466 | }, |
1467 | [OP_LINK] = { | |
1468 | .op_func = (nfsd4op_func)nfsd4_link, | |
c856694e BF |
1469 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
1470 | | OP_CACHEME, | |
b001a1b6 | 1471 | .op_name = "OP_LINK", |
58e7b33a | 1472 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
b591480b BF |
1473 | }, |
1474 | [OP_LOCK] = { | |
1475 | .op_func = (nfsd4op_func)nfsd4_lock, | |
58e7b33a | 1476 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1477 | .op_name = "OP_LOCK", |
58e7b33a | 1478 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
62cd4a59 | 1479 | .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid, |
b591480b BF |
1480 | }, |
1481 | [OP_LOCKT] = { | |
1482 | .op_func = (nfsd4op_func)nfsd4_lockt, | |
b001a1b6 | 1483 | .op_name = "OP_LOCKT", |
b591480b BF |
1484 | }, |
1485 | [OP_LOCKU] = { | |
1486 | .op_func = (nfsd4op_func)nfsd4_locku, | |
58e7b33a | 1487 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1488 | .op_name = "OP_LOCKU", |
58e7b33a | 1489 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
62cd4a59 | 1490 | .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid, |
b591480b BF |
1491 | }, |
1492 | [OP_LOOKUP] = { | |
1493 | .op_func = (nfsd4op_func)nfsd4_lookup, | |
d1471053 | 1494 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1495 | .op_name = "OP_LOOKUP", |
b591480b BF |
1496 | }, |
1497 | [OP_LOOKUPP] = { | |
1498 | .op_func = (nfsd4op_func)nfsd4_lookupp, | |
d1471053 | 1499 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1500 | .op_name = "OP_LOOKUPP", |
b591480b BF |
1501 | }, |
1502 | [OP_NVERIFY] = { | |
1503 | .op_func = (nfsd4op_func)nfsd4_nverify, | |
b001a1b6 | 1504 | .op_name = "OP_NVERIFY", |
b591480b BF |
1505 | }, |
1506 | [OP_OPEN] = { | |
1507 | .op_func = (nfsd4op_func)nfsd4_open, | |
58e7b33a | 1508 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1509 | .op_name = "OP_OPEN", |
58e7b33a | 1510 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
8b70484c | 1511 | .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid, |
b591480b BF |
1512 | }, |
1513 | [OP_OPEN_CONFIRM] = { | |
1514 | .op_func = (nfsd4op_func)nfsd4_open_confirm, | |
58e7b33a | 1515 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1516 | .op_name = "OP_OPEN_CONFIRM", |
58e7b33a | 1517 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1518 | }, |
1519 | [OP_OPEN_DOWNGRADE] = { | |
1520 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, | |
58e7b33a | 1521 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1522 | .op_name = "OP_OPEN_DOWNGRADE", |
58e7b33a | 1523 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1524 | }, |
1525 | [OP_PUTFH] = { | |
1526 | .op_func = (nfsd4op_func)nfsd4_putfh, | |
68d93184 | 1527 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1528 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1529 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1530 | .op_name = "OP_PUTFH", |
58e7b33a | 1531 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1532 | }, |
eeac294e | 1533 | [OP_PUTPUBFH] = { |
a1c8c4d1 | 1534 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
68d93184 | 1535 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1536 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1537 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1538 | .op_name = "OP_PUTPUBFH", |
58e7b33a | 1539 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
eeac294e | 1540 | }, |
b591480b BF |
1541 | [OP_PUTROOTFH] = { |
1542 | .op_func = (nfsd4op_func)nfsd4_putrootfh, | |
68d93184 | 1543 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1544 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1545 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1546 | .op_name = "OP_PUTROOTFH", |
58e7b33a | 1547 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1548 | }, |
1549 | [OP_READ] = { | |
1550 | .op_func = (nfsd4op_func)nfsd4_read, | |
58e7b33a | 1551 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1552 | .op_name = "OP_READ", |
58e7b33a | 1553 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
30813e27 | 1554 | .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid, |
b591480b BF |
1555 | }, |
1556 | [OP_READDIR] = { | |
1557 | .op_func = (nfsd4op_func)nfsd4_readdir, | |
58e7b33a | 1558 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1559 | .op_name = "OP_READDIR", |
58e7b33a | 1560 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
b591480b BF |
1561 | }, |
1562 | [OP_READLINK] = { | |
1563 | .op_func = (nfsd4op_func)nfsd4_readlink, | |
b001a1b6 | 1564 | .op_name = "OP_READLINK", |
b591480b BF |
1565 | }, |
1566 | [OP_REMOVE] = { | |
1567 | .op_func = (nfsd4op_func)nfsd4_remove, | |
c856694e | 1568 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1569 | .op_name = "OP_REMOVE", |
58e7b33a | 1570 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
b591480b BF |
1571 | }, |
1572 | [OP_RENAME] = { | |
1573 | .op_func = (nfsd4op_func)nfsd4_rename, | |
c856694e | 1574 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1575 | .op_name = "OP_RENAME", |
58e7b33a | 1576 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
b591480b BF |
1577 | }, |
1578 | [OP_RENEW] = { | |
1579 | .op_func = (nfsd4op_func)nfsd4_renew, | |
58e7b33a MJ |
1580 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1581 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1582 | .op_name = "OP_RENEW", |
58e7b33a MJ |
1583 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
1584 | ||
b591480b BF |
1585 | }, |
1586 | [OP_RESTOREFH] = { | |
1587 | .op_func = (nfsd4op_func)nfsd4_restorefh, | |
68d93184 | 1588 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1589 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1590 | .op_name = "OP_RESTOREFH", |
58e7b33a | 1591 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1592 | }, |
1593 | [OP_SAVEFH] = { | |
1594 | .op_func = (nfsd4op_func)nfsd4_savefh, | |
58e7b33a | 1595 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1596 | .op_name = "OP_SAVEFH", |
58e7b33a | 1597 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1598 | }, |
dcb488a3 AA |
1599 | [OP_SECINFO] = { |
1600 | .op_func = (nfsd4op_func)nfsd4_secinfo, | |
68d93184 | 1601 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1602 | .op_name = "OP_SECINFO", |
dcb488a3 | 1603 | }, |
b591480b BF |
1604 | [OP_SETATTR] = { |
1605 | .op_func = (nfsd4op_func)nfsd4_setattr, | |
b001a1b6 | 1606 | .op_name = "OP_SETATTR", |
c856694e | 1607 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1608 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
1e97b519 | 1609 | .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid, |
b591480b BF |
1610 | }, |
1611 | [OP_SETCLIENTID] = { | |
1612 | .op_func = (nfsd4op_func)nfsd4_setclientid, | |
58e7b33a | 1613 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1614 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1615 | .op_name = "OP_SETCLIENTID", |
58e7b33a | 1616 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
b591480b BF |
1617 | }, |
1618 | [OP_SETCLIENTID_CONFIRM] = { | |
1619 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, | |
58e7b33a | 1620 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1621 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1622 | .op_name = "OP_SETCLIENTID_CONFIRM", |
58e7b33a | 1623 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1624 | }, |
1625 | [OP_VERIFY] = { | |
1626 | .op_func = (nfsd4op_func)nfsd4_verify, | |
b001a1b6 | 1627 | .op_name = "OP_VERIFY", |
b591480b BF |
1628 | }, |
1629 | [OP_WRITE] = { | |
1630 | .op_func = (nfsd4op_func)nfsd4_write, | |
c856694e | 1631 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1632 | .op_name = "OP_WRITE", |
58e7b33a | 1633 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
30813e27 | 1634 | .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid, |
b591480b BF |
1635 | }, |
1636 | [OP_RELEASE_LOCKOWNER] = { | |
1637 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, | |
58e7b33a MJ |
1638 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1639 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1640 | .op_name = "OP_RELEASE_LOCKOWNER", |
58e7b33a | 1641 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1642 | }, |
069b6ad4 AA |
1643 | |
1644 | /* NFSv4.1 operations */ | |
1645 | [OP_EXCHANGE_ID] = { | |
1646 | .op_func = (nfsd4op_func)nfsd4_exchange_id, | |
58e7b33a MJ |
1647 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1648 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1649 | .op_name = "OP_EXCHANGE_ID", |
58e7b33a | 1650 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
069b6ad4 | 1651 | }, |
1d1bc8f2 BF |
1652 | [OP_BIND_CONN_TO_SESSION] = { |
1653 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, | |
58e7b33a MJ |
1654 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1655 | | OP_MODIFIES_SOMETHING, | |
1d1bc8f2 | 1656 | .op_name = "OP_BIND_CONN_TO_SESSION", |
58e7b33a | 1657 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
1d1bc8f2 | 1658 | }, |
069b6ad4 AA |
1659 | [OP_CREATE_SESSION] = { |
1660 | .op_func = (nfsd4op_func)nfsd4_create_session, | |
58e7b33a MJ |
1661 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1662 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1663 | .op_name = "OP_CREATE_SESSION", |
58e7b33a | 1664 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
069b6ad4 AA |
1665 | }, |
1666 | [OP_DESTROY_SESSION] = { | |
1667 | .op_func = (nfsd4op_func)nfsd4_destroy_session, | |
58e7b33a MJ |
1668 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1669 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1670 | .op_name = "OP_DESTROY_SESSION", |
58e7b33a | 1671 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
069b6ad4 AA |
1672 | }, |
1673 | [OP_SEQUENCE] = { | |
1674 | .op_func = (nfsd4op_func)nfsd4_sequence, | |
f9bb94c4 | 1675 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1676 | .op_name = "OP_SEQUENCE", |
1677 | }, | |
094b5d74 | 1678 | [OP_DESTROY_CLIENTID] = { |
345c2842 | 1679 | .op_func = (nfsd4op_func)nfsd4_destroy_clientid, |
58e7b33a MJ |
1680 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1681 | | OP_MODIFIES_SOMETHING, | |
094b5d74 | 1682 | .op_name = "OP_DESTROY_CLIENTID", |
58e7b33a | 1683 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
094b5d74 | 1684 | }, |
4dc6ec00 BF |
1685 | [OP_RECLAIM_COMPLETE] = { |
1686 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, | |
58e7b33a | 1687 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
4dc6ec00 | 1688 | .op_name = "OP_RECLAIM_COMPLETE", |
58e7b33a | 1689 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
4dc6ec00 | 1690 | }, |
04f4ad16 BF |
1691 | [OP_SECINFO_NO_NAME] = { |
1692 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, | |
68d93184 | 1693 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 BF |
1694 | .op_name = "OP_SECINFO_NO_NAME", |
1695 | }, | |
17456804 BS |
1696 | [OP_TEST_STATEID] = { |
1697 | .op_func = (nfsd4op_func)nfsd4_test_stateid, | |
1698 | .op_flags = ALLOWED_WITHOUT_FH, | |
1699 | .op_name = "OP_TEST_STATEID", | |
1700 | }, | |
e1ca12df BS |
1701 | [OP_FREE_STATEID] = { |
1702 | .op_func = (nfsd4op_func)nfsd4_free_stateid, | |
58e7b33a | 1703 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
e1ca12df | 1704 | .op_name = "OP_FREE_STATEID", |
58e7b33a | 1705 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
e1ca12df | 1706 | }, |
b591480b BF |
1707 | }; |
1708 | ||
f1c7f79b | 1709 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
1710 | { |
1711 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
1712 | return nfsd4_ops[opnum].op_name; | |
1713 | return "unknown_operation"; | |
1714 | } | |
1715 | ||
1da177e4 | 1716 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
1717 | struct nfsd4_voidargs { int dummy; }; |
1718 | ||
1da177e4 | 1719 | static struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f YZ |
1720 | [NFSPROC4_NULL] = { |
1721 | .pc_func = (svc_procfunc) nfsd4_proc_null, | |
1722 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, | |
1723 | .pc_argsize = sizeof(struct nfsd4_voidargs), | |
1724 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
1725 | .pc_cachetype = RC_NOCACHE, | |
1726 | .pc_xdrressize = 1, | |
1727 | }, | |
1728 | [NFSPROC4_COMPOUND] = { | |
1729 | .pc_func = (svc_procfunc) nfsd4_proc_compound, | |
1730 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, | |
1731 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, | |
1732 | .pc_argsize = sizeof(struct nfsd4_compoundargs), | |
1733 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 1734 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
1735 | .pc_cachetype = RC_NOCACHE, |
1736 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
1737 | }, | |
1da177e4 LT |
1738 | }; |
1739 | ||
1740 | struct svc_version nfsd_version4 = { | |
1741 | .vs_vers = 4, | |
1742 | .vs_nproc = 2, | |
1743 | .vs_proc = nfsd_procedures4, | |
1744 | .vs_dispatch = nfsd_dispatch, | |
1745 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
1746 | }; | |
1747 | ||
1748 | /* | |
1749 | * Local variables: | |
1750 | * c-basic-offset: 8 | |
1751 | * End: | |
1752 | */ |