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 reply cache */ |
fe0750e5 | 251 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
a4773c08 | 252 | &resfh.fh_handle); |
856121b2 | 253 | if (!open->op_created) |
41fd1e42 | 254 | status = do_open_permission(rqstp, &resfh, open, |
8837abca | 255 | NFSD_MAY_NOP); |
41fd1e42 BF |
256 | set_change_info(&open->op_cinfo, current_fh); |
257 | fh_dup2(current_fh, &resfh); | |
af85852d | 258 | out: |
1da177e4 LT |
259 | fh_put(&resfh); |
260 | return status; | |
261 | } | |
262 | ||
b37ad28b | 263 | static __be32 |
1da177e4 LT |
264 | do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
265 | { | |
b37ad28b | 266 | __be32 status; |
1da177e4 | 267 | |
1da177e4 LT |
268 | /* We don't know the target directory, and therefore can not |
269 | * set the change info | |
270 | */ | |
271 | ||
272 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
273 | ||
274 | /* set replay cache */ | |
fe0750e5 | 275 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
a4773c08 | 276 | ¤t_fh->fh_handle); |
1da177e4 LT |
277 | |
278 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
279 | (open->op_iattr.ia_size == 0); | |
280 | ||
8837abca MS |
281 | status = do_open_permission(rqstp, current_fh, open, |
282 | NFSD_MAY_OWNER_OVERRIDE); | |
1da177e4 LT |
283 | |
284 | return status; | |
285 | } | |
286 | ||
60adfc50 AA |
287 | static void |
288 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) | |
289 | { | |
290 | struct nfsd4_sessionid *sid = | |
291 | (struct nfsd4_sessionid *)session->se_sessionid.data; | |
292 | ||
293 | clid->cl_boot = sid->clientid.cl_boot; | |
294 | clid->cl_id = sid->clientid.cl_id; | |
295 | } | |
1da177e4 | 296 | |
7191155b | 297 | static __be32 |
ca364317 | 298 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
a4f1706a | 299 | struct nfsd4_open *open) |
1da177e4 | 300 | { |
b37ad28b | 301 | __be32 status; |
6668958f AA |
302 | struct nfsd4_compoundres *resp; |
303 | ||
fe0750e5 | 304 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
1da177e4 | 305 | (int)open->op_fname.len, open->op_fname.data, |
fe0750e5 | 306 | open->op_openowner); |
1da177e4 | 307 | |
1da177e4 LT |
308 | /* This check required by spec. */ |
309 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
310 | return nfserr_inval; | |
311 | ||
856121b2 | 312 | open->op_created = 0; |
ab1350b2 MJ |
313 | /* |
314 | * RFC5661 18.51.3 | |
315 | * Before RECLAIM_COMPLETE done, server should deny new lock | |
316 | */ | |
317 | if (nfsd4_has_session(cstate) && | |
318 | !cstate->session->se_client->cl_firststate && | |
319 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) | |
320 | return nfserr_grace; | |
321 | ||
60adfc50 AA |
322 | if (nfsd4_has_session(cstate)) |
323 | copy_clientid(&open->op_clientid, cstate->session); | |
324 | ||
1da177e4 LT |
325 | nfs4_lock_state(); |
326 | ||
327 | /* check seqid for replay. set nfs4_owner */ | |
6668958f AA |
328 | resp = rqstp->rq_resp; |
329 | status = nfsd4_process_open1(&resp->cstate, open); | |
a90b061c | 330 | if (status == nfserr_replay_me) { |
fe0750e5 | 331 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
ca364317 | 332 | fh_put(&cstate->current_fh); |
a4773c08 BF |
333 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
334 | &rp->rp_openfh); | |
8837abca | 335 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
336 | if (status) |
337 | dprintk("nfsd4_open: replay failed" | |
338 | " restoring previous filehandle\n"); | |
339 | else | |
a90b061c | 340 | status = nfserr_replay_me; |
1da177e4 LT |
341 | } |
342 | if (status) | |
343 | goto out; | |
fb553c0f | 344 | |
3c8e0316 YZ |
345 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
346 | if (status) | |
347 | goto out; | |
348 | ||
fb553c0f BF |
349 | /* Openowner is now set, so sequence id will get bumped. Now we need |
350 | * these checks before we do any creates: */ | |
cbd0d51a | 351 | status = nfserr_grace; |
af558e33 | 352 | if (locks_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
353 | goto out; |
354 | status = nfserr_no_grace; | |
af558e33 | 355 | if (!locks_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 356 | goto out; |
fb553c0f | 357 | |
1da177e4 | 358 | switch (open->op_claim_type) { |
0dd3c192 | 359 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
1da177e4 | 360 | case NFS4_OPEN_CLAIM_NULL: |
ca364317 BF |
361 | status = do_open_lookup(rqstp, &cstate->current_fh, |
362 | open); | |
1da177e4 LT |
363 | if (status) |
364 | goto out; | |
365 | break; | |
366 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
dad1c067 | 367 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
0cf99b91 MJ |
368 | status = nfs4_check_open_reclaim(&open->op_clientid); |
369 | if (status) | |
370 | goto out; | |
8b289b2c BF |
371 | case NFS4_OPEN_CLAIM_FH: |
372 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: | |
ca364317 BF |
373 | status = do_open_fhandle(rqstp, &cstate->current_fh, |
374 | open); | |
1da177e4 LT |
375 | if (status) |
376 | goto out; | |
377 | break; | |
8b289b2c | 378 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
1da177e4 | 379 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
dad1c067 | 380 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
2fdada03 | 381 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
1da177e4 LT |
382 | open->op_claim_type); |
383 | status = nfserr_notsupp; | |
384 | goto out; | |
385 | default: | |
2fdada03 | 386 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
1da177e4 LT |
387 | open->op_claim_type); |
388 | status = nfserr_inval; | |
389 | goto out; | |
390 | } | |
391 | /* | |
392 | * nfsd4_process_open2() does the actual opening of the file. If | |
393 | * successful, it (1) truncates the file if open->op_truncate was | |
394 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
395 | */ | |
ca364317 | 396 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
856121b2 | 397 | WARN_ON(status && open->op_created); |
1da177e4 | 398 | out: |
d29b20cd | 399 | nfsd4_cleanup_open_state(open, status); |
fe0750e5 BF |
400 | if (open->op_openowner) |
401 | cstate->replay_owner = &open->op_openowner->oo_owner; | |
7c13f344 | 402 | else |
5ec094c1 | 403 | nfs4_unlock_state(); |
1da177e4 LT |
404 | return status; |
405 | } | |
406 | ||
407 | /* | |
408 | * filehandle-manipulating ops. | |
409 | */ | |
7191155b | 410 | static __be32 |
b591480b BF |
411 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
412 | struct svc_fh **getfh) | |
1da177e4 | 413 | { |
ca364317 | 414 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
415 | return nfserr_nofilehandle; |
416 | ||
ca364317 | 417 | *getfh = &cstate->current_fh; |
1da177e4 LT |
418 | return nfs_ok; |
419 | } | |
420 | ||
7191155b | 421 | static __be32 |
ca364317 BF |
422 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
423 | struct nfsd4_putfh *putfh) | |
1da177e4 | 424 | { |
ca364317 BF |
425 | fh_put(&cstate->current_fh); |
426 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; | |
427 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, | |
428 | putfh->pf_fhlen); | |
68d93184 | 429 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
1da177e4 LT |
430 | } |
431 | ||
7191155b | 432 | static __be32 |
b591480b BF |
433 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
434 | void *arg) | |
1da177e4 | 435 | { |
b37ad28b | 436 | __be32 status; |
1da177e4 | 437 | |
ca364317 | 438 | fh_put(&cstate->current_fh); |
df547efb | 439 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
1da177e4 LT |
440 | return status; |
441 | } | |
442 | ||
7191155b | 443 | static __be32 |
b591480b BF |
444 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
445 | void *arg) | |
1da177e4 | 446 | { |
ca364317 | 447 | if (!cstate->save_fh.fh_dentry) |
1da177e4 LT |
448 | return nfserr_restorefh; |
449 | ||
ca364317 | 450 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
37c593c5 TM |
451 | if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) { |
452 | memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t)); | |
453 | SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG); | |
454 | } | |
1da177e4 LT |
455 | return nfs_ok; |
456 | } | |
457 | ||
7191155b | 458 | static __be32 |
b591480b BF |
459 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
460 | void *arg) | |
1da177e4 | 461 | { |
ca364317 | 462 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
463 | return nfserr_nofilehandle; |
464 | ||
ca364317 | 465 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
37c593c5 TM |
466 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
467 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); | |
468 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); | |
469 | } | |
1da177e4 LT |
470 | return nfs_ok; |
471 | } | |
472 | ||
473 | /* | |
474 | * misc nfsv4 ops | |
475 | */ | |
7191155b | 476 | static __be32 |
ca364317 BF |
477 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
478 | struct nfsd4_access *access) | |
1da177e4 LT |
479 | { |
480 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) | |
481 | return nfserr_inval; | |
482 | ||
483 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
484 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
485 | &access->ac_supported); | |
1da177e4 LT |
486 | } |
487 | ||
7191155b | 488 | static __be32 |
ca364317 BF |
489 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
490 | struct nfsd4_commit *commit) | |
1da177e4 | 491 | { |
1da177e4 LT |
492 | u32 *p = (u32 *)commit->co_verf.data; |
493 | *p++ = nfssvc_boot.tv_sec; | |
494 | *p++ = nfssvc_boot.tv_usec; | |
495 | ||
75c096f7 | 496 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
ca364317 | 497 | commit->co_count); |
1da177e4 LT |
498 | } |
499 | ||
b37ad28b | 500 | static __be32 |
ca364317 BF |
501 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
502 | struct nfsd4_create *create) | |
1da177e4 LT |
503 | { |
504 | struct svc_fh resfh; | |
b37ad28b | 505 | __be32 status; |
1da177e4 LT |
506 | dev_t rdev; |
507 | ||
508 | fh_init(&resfh, NFS4_FHSIZE); | |
509 | ||
8837abca MS |
510 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
511 | NFSD_MAY_CREATE); | |
1da177e4 LT |
512 | if (status) |
513 | return status; | |
514 | ||
3c8e0316 YZ |
515 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
516 | nfsd_attrmask); | |
517 | if (status) | |
518 | return status; | |
519 | ||
1da177e4 LT |
520 | switch (create->cr_type) { |
521 | case NF4LNK: | |
522 | /* ugh! we have to null-terminate the linktext, or | |
523 | * vfs_symlink() will choke. it is always safe to | |
524 | * null-terminate by brute force, since at worst we | |
525 | * will overwrite the first byte of the create namelen | |
526 | * in the XDR buffer, which has already been extracted | |
527 | * during XDR decode. | |
528 | */ | |
529 | create->cr_linkname[create->cr_linklen] = 0; | |
530 | ||
ca364317 BF |
531 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
532 | create->cr_name, create->cr_namelen, | |
533 | create->cr_linkname, create->cr_linklen, | |
534 | &resfh, &create->cr_iattr); | |
1da177e4 LT |
535 | break; |
536 | ||
537 | case NF4BLK: | |
538 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
539 | if (MAJOR(rdev) != create->cr_specdata1 || | |
540 | MINOR(rdev) != create->cr_specdata2) | |
541 | return nfserr_inval; | |
ca364317 BF |
542 | status = nfsd_create(rqstp, &cstate->current_fh, |
543 | create->cr_name, create->cr_namelen, | |
544 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
545 | break; |
546 | ||
547 | case NF4CHR: | |
548 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
549 | if (MAJOR(rdev) != create->cr_specdata1 || | |
550 | MINOR(rdev) != create->cr_specdata2) | |
551 | return nfserr_inval; | |
ca364317 BF |
552 | status = nfsd_create(rqstp, &cstate->current_fh, |
553 | create->cr_name, create->cr_namelen, | |
554 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
555 | break; |
556 | ||
557 | case NF4SOCK: | |
ca364317 BF |
558 | status = nfsd_create(rqstp, &cstate->current_fh, |
559 | create->cr_name, create->cr_namelen, | |
560 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
561 | break; |
562 | ||
563 | case NF4FIFO: | |
ca364317 BF |
564 | status = nfsd_create(rqstp, &cstate->current_fh, |
565 | create->cr_name, create->cr_namelen, | |
566 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
567 | break; |
568 | ||
569 | case NF4DIR: | |
570 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
571 | status = nfsd_create(rqstp, &cstate->current_fh, |
572 | create->cr_name, create->cr_namelen, | |
573 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
574 | break; |
575 | ||
576 | default: | |
577 | status = nfserr_badtype; | |
578 | } | |
579 | ||
9208faf2 YZ |
580 | if (status) |
581 | goto out; | |
1da177e4 | 582 | |
9208faf2 YZ |
583 | if (create->cr_acl != NULL) |
584 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
585 | create->cr_bmval); | |
586 | ||
587 | fh_unlock(&cstate->current_fh); | |
588 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
589 | fh_dup2(&cstate->current_fh, &resfh); | |
590 | out: | |
1da177e4 LT |
591 | fh_put(&resfh); |
592 | return status; | |
593 | } | |
594 | ||
7191155b | 595 | static __be32 |
ca364317 BF |
596 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
597 | struct nfsd4_getattr *getattr) | |
1da177e4 | 598 | { |
b37ad28b | 599 | __be32 status; |
1da177e4 | 600 | |
8837abca | 601 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
602 | if (status) |
603 | return status; | |
604 | ||
605 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
606 | return nfserr_inval; | |
607 | ||
7e705706 AA |
608 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
609 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
610 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 611 | |
ca364317 | 612 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
613 | return nfs_ok; |
614 | } | |
615 | ||
7191155b | 616 | static __be32 |
ca364317 BF |
617 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
618 | struct nfsd4_link *link) | |
1da177e4 | 619 | { |
b37ad28b | 620 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 621 | |
ca364317 | 622 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 623 | return status; |
ca364317 BF |
624 | status = nfsd_link(rqstp, &cstate->current_fh, |
625 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 626 | if (!status) |
ca364317 | 627 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
628 | return status; |
629 | } | |
630 | ||
0ff7ab46 | 631 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
632 | { |
633 | struct svc_fh tmp_fh; | |
b37ad28b | 634 | __be32 ret; |
1da177e4 LT |
635 | |
636 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
637 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
638 | if (ret) | |
1da177e4 | 639 | return ret; |
0ff7ab46 | 640 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
641 | fh_put(&tmp_fh); |
642 | return nfserr_noent; | |
643 | } | |
644 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
645 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
646 | } | |
647 | ||
648 | static __be32 | |
649 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
650 | void *arg) | |
651 | { | |
652 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
653 | } |
654 | ||
7191155b | 655 | static __be32 |
ca364317 BF |
656 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
657 | struct nfsd4_lookup *lookup) | |
1da177e4 | 658 | { |
ca364317 BF |
659 | return nfsd_lookup(rqstp, &cstate->current_fh, |
660 | lookup->lo_name, lookup->lo_len, | |
661 | &cstate->current_fh); | |
1da177e4 LT |
662 | } |
663 | ||
7191155b | 664 | static __be32 |
ca364317 BF |
665 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
666 | struct nfsd4_read *read) | |
1da177e4 | 667 | { |
b37ad28b | 668 | __be32 status; |
1da177e4 LT |
669 | |
670 | /* no need to check permission - this will be done in nfsd_read() */ | |
671 | ||
7e06b7f9 | 672 | read->rd_filp = NULL; |
1da177e4 LT |
673 | if (read->rd_offset >= OFFSET_MAX) |
674 | return nfserr_inval; | |
675 | ||
676 | nfs4_lock_state(); | |
677 | /* check stateid */ | |
dd453dfd BH |
678 | if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid, |
679 | RD_STATE, &read->rd_filp))) { | |
1da177e4 LT |
680 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
681 | goto out; | |
682 | } | |
7e06b7f9 N |
683 | if (read->rd_filp) |
684 | get_file(read->rd_filp); | |
1da177e4 LT |
685 | status = nfs_ok; |
686 | out: | |
687 | nfs4_unlock_state(); | |
688 | read->rd_rqstp = rqstp; | |
ca364317 | 689 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
690 | return status; |
691 | } | |
692 | ||
7191155b | 693 | static __be32 |
ca364317 BF |
694 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
695 | struct nfsd4_readdir *readdir) | |
1da177e4 LT |
696 | { |
697 | u64 cookie = readdir->rd_cookie; | |
698 | static const nfs4_verifier zeroverf; | |
699 | ||
700 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
701 | ||
702 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
703 | return nfserr_inval; | |
704 | ||
7e705706 AA |
705 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
706 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
707 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 708 | |
832023bf | 709 | if ((cookie == 1) || (cookie == 2) || |
1da177e4 LT |
710 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
711 | return nfserr_bad_cookie; | |
712 | ||
713 | readdir->rd_rqstp = rqstp; | |
ca364317 | 714 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
715 | return nfs_ok; |
716 | } | |
717 | ||
7191155b | 718 | static __be32 |
ca364317 BF |
719 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
720 | struct nfsd4_readlink *readlink) | |
1da177e4 LT |
721 | { |
722 | readlink->rl_rqstp = rqstp; | |
ca364317 | 723 | readlink->rl_fhp = &cstate->current_fh; |
1da177e4 LT |
724 | return nfs_ok; |
725 | } | |
726 | ||
7191155b | 727 | static __be32 |
ca364317 BF |
728 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
729 | struct nfsd4_remove *remove) | |
1da177e4 | 730 | { |
b37ad28b | 731 | __be32 status; |
1da177e4 | 732 | |
af558e33 | 733 | if (locks_in_grace()) |
c815afc7 | 734 | return nfserr_grace; |
ca364317 BF |
735 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
736 | remove->rm_name, remove->rm_namelen); | |
1da177e4 | 737 | if (!status) { |
ca364317 BF |
738 | fh_unlock(&cstate->current_fh); |
739 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
740 | } |
741 | return status; | |
742 | } | |
743 | ||
7191155b | 744 | static __be32 |
ca364317 BF |
745 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
746 | struct nfsd4_rename *rename) | |
1da177e4 | 747 | { |
b37ad28b | 748 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 749 | |
ca364317 | 750 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 751 | return status; |
af558e33 | 752 | if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags |
c815afc7 N |
753 | & NFSEXP_NOSUBTREECHECK)) |
754 | return nfserr_grace; | |
ca364317 BF |
755 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
756 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 LT |
757 | rename->rn_tname, rename->rn_tnamelen); |
758 | ||
759 | /* the underlying filesystem returns different error's than required | |
760 | * by NFSv4. both save_fh and current_fh have been verified.. */ | |
761 | if (status == nfserr_isdir) | |
762 | status = nfserr_exist; | |
763 | else if ((status == nfserr_notdir) && | |
ca364317 BF |
764 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
765 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) | |
1da177e4 | 766 | status = nfserr_exist; |
1da177e4 LT |
767 | |
768 | if (!status) { | |
ca364317 BF |
769 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
770 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
1da177e4 LT |
771 | } |
772 | return status; | |
773 | } | |
774 | ||
dcb488a3 AA |
775 | static __be32 |
776 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
777 | struct nfsd4_secinfo *secinfo) | |
778 | { | |
779 | struct svc_fh resfh; | |
780 | struct svc_export *exp; | |
781 | struct dentry *dentry; | |
782 | __be32 err; | |
783 | ||
784 | fh_init(&resfh, NFS4_FHSIZE); | |
29a78a3e BF |
785 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
786 | if (err) | |
787 | return err; | |
dcb488a3 AA |
788 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
789 | secinfo->si_name, secinfo->si_namelen, | |
790 | &exp, &dentry); | |
791 | if (err) | |
792 | return err; | |
793 | if (dentry->d_inode == NULL) { | |
794 | exp_put(exp); | |
795 | err = nfserr_noent; | |
796 | } else | |
797 | secinfo->si_exp = exp; | |
798 | dput(dentry); | |
56560b9a BF |
799 | if (cstate->minorversion) |
800 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
801 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
802 | return err; |
803 | } | |
804 | ||
04f4ad16 BF |
805 | static __be32 |
806 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
807 | struct nfsd4_secinfo_no_name *sin) | |
808 | { | |
809 | __be32 err; | |
810 | ||
811 | switch (sin->sin_style) { | |
812 | case NFS4_SECINFO_STYLE4_CURRENT_FH: | |
813 | break; | |
814 | case NFS4_SECINFO_STYLE4_PARENT: | |
815 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
816 | if (err) | |
817 | return err; | |
818 | break; | |
819 | default: | |
820 | return nfserr_inval; | |
821 | } | |
822 | exp_get(cstate->current_fh.fh_export); | |
823 | sin->sin_exp = cstate->current_fh.fh_export; | |
824 | fh_put(&cstate->current_fh); | |
825 | return nfs_ok; | |
826 | } | |
827 | ||
7191155b | 828 | static __be32 |
ca364317 BF |
829 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
830 | struct nfsd4_setattr *setattr) | |
1da177e4 | 831 | { |
b37ad28b | 832 | __be32 status = nfs_ok; |
1da177e4 | 833 | |
1da177e4 LT |
834 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
835 | nfs4_lock_state(); | |
dd453dfd | 836 | status = nfs4_preprocess_stateid_op(cstate, |
6150ef0d | 837 | &setattr->sa_stateid, WR_STATE, NULL); |
1da177e4 | 838 | nfs4_unlock_state(); |
375c5547 | 839 | if (status) { |
3e3b4800 | 840 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
841 | return status; |
842 | } | |
1da177e4 | 843 | } |
bad0dcff | 844 | status = fh_want_write(&cstate->current_fh); |
18f335af DH |
845 | if (status) |
846 | return status; | |
1da177e4 | 847 | status = nfs_ok; |
3c8e0316 YZ |
848 | |
849 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
850 | nfsd_attrmask); | |
851 | if (status) | |
852 | goto out; | |
853 | ||
1da177e4 | 854 | if (setattr->sa_acl != NULL) |
ca364317 BF |
855 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
856 | setattr->sa_acl); | |
1da177e4 | 857 | if (status) |
18f335af | 858 | goto out; |
ca364317 | 859 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 860 | 0, (time_t)0); |
18f335af | 861 | out: |
bad0dcff | 862 | fh_drop_write(&cstate->current_fh); |
1da177e4 LT |
863 | return status; |
864 | } | |
865 | ||
7191155b | 866 | static __be32 |
ca364317 BF |
867 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
868 | struct nfsd4_write *write) | |
1da177e4 LT |
869 | { |
870 | stateid_t *stateid = &write->wr_stateid; | |
871 | struct file *filp = NULL; | |
872 | u32 *p; | |
b37ad28b | 873 | __be32 status = nfs_ok; |
31dec253 | 874 | unsigned long cnt; |
1da177e4 LT |
875 | |
876 | /* no need to check permission - this will be done in nfsd_write() */ | |
877 | ||
878 | if (write->wr_offset >= OFFSET_MAX) | |
879 | return nfserr_inval; | |
880 | ||
881 | nfs4_lock_state(); | |
dd453dfd | 882 | status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp); |
7e06b7f9 N |
883 | if (filp) |
884 | get_file(filp); | |
1da177e4 LT |
885 | nfs4_unlock_state(); |
886 | ||
375c5547 BF |
887 | if (status) { |
888 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); | |
889 | return status; | |
890 | } | |
891 | ||
31dec253 | 892 | cnt = write->wr_buflen; |
1da177e4 LT |
893 | write->wr_how_written = write->wr_stable_how; |
894 | p = (u32 *)write->wr_verifier.data; | |
895 | *p++ = nfssvc_boot.tv_sec; | |
896 | *p++ = nfssvc_boot.tv_usec; | |
897 | ||
ca364317 BF |
898 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
899 | write->wr_offset, rqstp->rq_vec, write->wr_vlen, | |
31dec253 | 900 | &cnt, &write->wr_how_written); |
7e06b7f9 N |
901 | if (filp) |
902 | fput(filp); | |
1da177e4 | 903 | |
31dec253 DS |
904 | write->wr_bytes_written = cnt; |
905 | ||
1da177e4 | 906 | return status; |
1da177e4 LT |
907 | } |
908 | ||
909 | /* This routine never returns NFS_OK! If there are no other errors, it | |
910 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
911 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
912 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
913 | */ | |
b37ad28b | 914 | static __be32 |
c954e2a5 | 915 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 916 | struct nfsd4_verify *verify) |
1da177e4 | 917 | { |
2ebbc012 | 918 | __be32 *buf, *p; |
1da177e4 | 919 | int count; |
b37ad28b | 920 | __be32 status; |
1da177e4 | 921 | |
8837abca | 922 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
923 | if (status) |
924 | return status; | |
925 | ||
3c8e0316 YZ |
926 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
927 | if (status) | |
928 | return status; | |
929 | ||
1da177e4 LT |
930 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
931 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
932 | return nfserr_inval; | |
933 | if (verify->ve_attrlen & 3) | |
934 | return nfserr_inval; | |
935 | ||
936 | /* count in words: | |
937 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
938 | */ | |
939 | count = 4 + (verify->ve_attrlen >> 2); | |
940 | buf = kmalloc(count << 2, GFP_KERNEL); | |
941 | if (!buf) | |
3e772463 | 942 | return nfserr_jukebox; |
1da177e4 | 943 | |
ca364317 BF |
944 | status = nfsd4_encode_fattr(&cstate->current_fh, |
945 | cstate->current_fh.fh_export, | |
946 | cstate->current_fh.fh_dentry, buf, | |
1da177e4 | 947 | &count, verify->ve_bmval, |
406a7ea9 | 948 | rqstp, 0); |
1da177e4 LT |
949 | |
950 | /* this means that nfsd4_encode_fattr() ran out of space */ | |
951 | if (status == nfserr_resource && count == 0) | |
952 | status = nfserr_not_same; | |
953 | if (status) | |
954 | goto out_kfree; | |
955 | ||
95ec28cd BH |
956 | /* skip bitmap */ |
957 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
958 | status = nfserr_not_same; |
959 | if (ntohl(*p++) != verify->ve_attrlen) | |
960 | goto out_kfree; | |
961 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
962 | status = nfserr_same; | |
963 | ||
964 | out_kfree: | |
965 | kfree(buf); | |
966 | return status; | |
967 | } | |
968 | ||
c954e2a5 BF |
969 | static __be32 |
970 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
971 | struct nfsd4_verify *verify) | |
972 | { | |
973 | __be32 status; | |
974 | ||
975 | status = _nfsd4_verify(rqstp, cstate, verify); | |
976 | return status == nfserr_not_same ? nfs_ok : status; | |
977 | } | |
978 | ||
979 | static __be32 | |
980 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
981 | struct nfsd4_verify *verify) | |
982 | { | |
983 | __be32 status; | |
984 | ||
985 | status = _nfsd4_verify(rqstp, cstate, verify); | |
986 | return status == nfserr_same ? nfs_ok : status; | |
987 | } | |
988 | ||
1da177e4 LT |
989 | /* |
990 | * NULL call. | |
991 | */ | |
7111c66e | 992 | static __be32 |
1da177e4 LT |
993 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
994 | { | |
995 | return nfs_ok; | |
996 | } | |
997 | ||
e2b20950 SA |
998 | static inline void nfsd4_increment_op_stats(u32 opnum) |
999 | { | |
1000 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
1001 | nfsdstats.nfs4_opcount[opnum]++; | |
1002 | } | |
1003 | ||
b591480b BF |
1004 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
1005 | void *); | |
58e7b33a | 1006 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
8b70484c TM |
1007 | typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *); |
1008 | typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *); | |
58e7b33a | 1009 | |
f9bb94c4 AA |
1010 | enum nfsd4_op_flags { |
1011 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ | |
5ece3caf MJ |
1012 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
1013 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ | |
68d93184 BF |
1014 | /* For rfc 5661 section 2.6.3.1.1: */ |
1015 | OP_HANDLES_WRONGSEC = 1 << 3, | |
1016 | OP_IS_PUTFH_LIKE = 1 << 4, | |
1091006c | 1017 | /* |
c856694e BF |
1018 | * These are the ops whose result size we estimate before |
1019 | * encoding, to avoid performing an op then not being able to | |
1020 | * respond or cache a response. This includes writes and setattrs | |
1021 | * as well as the operations usually called "nonidempotent": | |
1022 | */ | |
1023 | OP_MODIFIES_SOMETHING = 1 << 5, | |
1024 | /* | |
1025 | * Cache compounds containing these ops in the xid-based drc: | |
1091006c BF |
1026 | * We use the DRC for compounds containing non-idempotent |
1027 | * operations, *except* those that are 4.1-specific (since | |
1028 | * sessions provide their own EOS), and except for stateful | |
1029 | * operations other than setclientid and setclientid_confirm | |
1030 | * (since sequence numbers provide EOS for open, lock, etc in | |
1031 | * the v4.0 case). | |
1032 | */ | |
c856694e | 1033 | OP_CACHEME = 1 << 6, |
8b70484c TM |
1034 | /* |
1035 | * These are ops which clear current state id. | |
1036 | */ | |
1037 | OP_CLEAR_STATEID = 1 << 7, | |
c856694e BF |
1038 | }; |
1039 | ||
1040 | struct nfsd4_operation { | |
1041 | nfsd4op_func op_func; | |
1042 | u32 op_flags; | |
1043 | char *op_name; | |
58e7b33a MJ |
1044 | /* Try to get response size before operation */ |
1045 | nfsd4op_rsize op_rsize_bop; | |
8b70484c TM |
1046 | stateid_setter op_get_currentstateid; |
1047 | stateid_getter op_set_currentstateid; | |
b591480b BF |
1048 | }; |
1049 | ||
1050 | static struct nfsd4_operation nfsd4_ops[]; | |
1051 | ||
f1c7f79b | 1052 | static const char *nfsd4_op_name(unsigned opnum); |
b001a1b6 | 1053 | |
f9bb94c4 | 1054 | /* |
57716355 | 1055 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1056 | * |
57716355 BF |
1057 | * Also note, enforced elsewhere: |
1058 | * - SEQUENCE other than as first op results in | |
1059 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1060 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1061 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1062 | * - DESTROY_SESSION must be the final operation in a compound, if |
1063 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1064 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1065 | */ |
57716355 | 1066 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1067 | { |
57716355 BF |
1068 | struct nfsd4_op *op = &args->ops[0]; |
1069 | ||
1070 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1071 | if (args->minorversion == 0) | |
1072 | return nfs_ok; | |
1073 | /* This is weird, but OK, not our problem: */ | |
1074 | if (args->opcnt == 0) | |
1075 | return nfs_ok; | |
1076 | if (op->status == nfserr_op_illegal) | |
1077 | return nfs_ok; | |
1078 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1079 | return nfserr_op_not_in_session; | |
1080 | if (op->opnum == OP_SEQUENCE) | |
1081 | return nfs_ok; | |
1082 | if (args->opcnt != 1) | |
1083 | return nfserr_not_only_op; | |
1084 | return nfs_ok; | |
f9bb94c4 AA |
1085 | } |
1086 | ||
22b03214 BF |
1087 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
1088 | { | |
1089 | return &nfsd4_ops[op->opnum]; | |
1090 | } | |
1091 | ||
1091006c BF |
1092 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1093 | { | |
c856694e | 1094 | return OPDESC(op)->op_flags & OP_CACHEME; |
1091006c BF |
1095 | } |
1096 | ||
68d93184 BF |
1097 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1098 | { | |
1099 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1100 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1101 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1102 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
1103 | struct nfsd4_operation *thisd; | |
1104 | struct nfsd4_operation *nextd; | |
1105 | ||
1106 | thisd = OPDESC(this); | |
1107 | /* | |
1108 | * Most ops check wronsec on our own; only the putfh-like ops | |
1109 | * have special rules. | |
1110 | */ | |
1111 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1112 | return false; | |
1113 | /* | |
1114 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1115 | * put-filehandle operation if we're not going to use the | |
1116 | * result: | |
1117 | */ | |
1118 | if (argp->opcnt == resp->opcnt) | |
1119 | return false; | |
1120 | ||
1121 | nextd = OPDESC(next); | |
1122 | /* | |
1123 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1124 | * errors themselves as necessary; others should check for them | |
1125 | * now: | |
1126 | */ | |
1127 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1128 | } | |
1129 | ||
1da177e4 LT |
1130 | /* |
1131 | * COMPOUND call. | |
1132 | */ | |
7111c66e | 1133 | static __be32 |
1da177e4 LT |
1134 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
1135 | struct nfsd4_compoundargs *args, | |
1136 | struct nfsd4_compoundres *resp) | |
1137 | { | |
1138 | struct nfsd4_op *op; | |
b591480b | 1139 | struct nfsd4_operation *opdesc; |
e354d571 | 1140 | struct nfsd4_compound_state *cstate = &resp->cstate; |
e5710199 | 1141 | int slack_bytes; |
58e7b33a | 1142 | u32 plen = 0; |
b37ad28b | 1143 | __be32 status; |
1da177e4 | 1144 | |
1da177e4 | 1145 | resp->xbuf = &rqstp->rq_res; |
e354d571 AA |
1146 | resp->p = rqstp->rq_res.head[0].iov_base + |
1147 | rqstp->rq_res.head[0].iov_len; | |
1da177e4 LT |
1148 | resp->tagp = resp->p; |
1149 | /* reserve space for: taglen, tag, and opcnt */ | |
1150 | resp->p += 2 + XDR_QUADLEN(args->taglen); | |
1151 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; | |
1152 | resp->taglen = args->taglen; | |
1153 | resp->tag = args->tag; | |
1154 | resp->opcnt = 0; | |
1155 | resp->rqstp = rqstp; | |
d87a8ade | 1156 | resp->cstate.minorversion = args->minorversion; |
e354d571 | 1157 | resp->cstate.replay_owner = NULL; |
26c0c75e | 1158 | resp->cstate.session = NULL; |
e354d571 AA |
1159 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
1160 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1161 | /* |
1162 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1163 | * too hard to avoid non-idempotency problems. | |
1164 | */ | |
1165 | rqstp->rq_usedeferral = 0; | |
1da177e4 LT |
1166 | |
1167 | /* | |
1168 | * According to RFC3010, this takes precedence over all other errors. | |
1169 | */ | |
1170 | status = nfserr_minor_vers_mismatch; | |
8daf220a | 1171 | if (args->minorversion > nfsd_supported_minorversion) |
1da177e4 LT |
1172 | goto out; |
1173 | ||
57716355 BF |
1174 | status = nfs41_check_op_ordering(args); |
1175 | if (status) { | |
f9bb94c4 | 1176 | op = &args->ops[0]; |
57716355 | 1177 | op->status = status; |
f9bb94c4 AA |
1178 | goto encode_op; |
1179 | } | |
1180 | ||
1da177e4 LT |
1181 | while (!status && resp->opcnt < args->opcnt) { |
1182 | op = &args->ops[resp->opcnt++]; | |
1183 | ||
b001a1b6 BH |
1184 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
1185 | resp->opcnt, args->opcnt, op->opnum, | |
1186 | nfsd4_op_name(op->opnum)); | |
1da177e4 LT |
1187 | /* |
1188 | * The XDR decode routines may have pre-set op->status; | |
1189 | * for example, if there is a miscellaneous XDR error | |
1190 | * it will be set to nfserr_bad_xdr. | |
1191 | */ | |
1192 | if (op->status) | |
1193 | goto encode_op; | |
1194 | ||
1195 | /* We must be able to encode a successful response to | |
1196 | * this operation, with enough room left over to encode a | |
1197 | * failed response to the next operation. If we don't | |
1198 | * have enough room, fail with ERR_RESOURCE. | |
1199 | */ | |
e5710199 BF |
1200 | slack_bytes = (char *)resp->end - (char *)resp->p; |
1201 | if (slack_bytes < COMPOUND_SLACK_SPACE | |
1202 | + COMPOUND_ERR_SLACK_SPACE) { | |
1203 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); | |
1da177e4 LT |
1204 | op->status = nfserr_resource; |
1205 | goto encode_op; | |
1206 | } | |
1207 | ||
22b03214 | 1208 | opdesc = OPDESC(op); |
b591480b | 1209 | |
ca364317 | 1210 | if (!cstate->current_fh.fh_dentry) { |
27d630ec | 1211 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1212 | op->status = nfserr_nofilehandle; |
1213 | goto encode_op; | |
1214 | } | |
eeac294e BF |
1215 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
1216 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { | |
42ca0993 | 1217 | op->status = nfserr_moved; |
1da177e4 LT |
1218 | goto encode_op; |
1219 | } | |
b591480b | 1220 | |
58e7b33a MJ |
1221 | /* If op is non-idempotent */ |
1222 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { | |
1223 | plen = opdesc->op_rsize_bop(rqstp, op); | |
1224 | op->status = nfsd4_check_resp_size(resp, plen); | |
1225 | } | |
1226 | ||
1227 | if (op->status) | |
1228 | goto encode_op; | |
1229 | ||
8b70484c TM |
1230 | if (opdesc->op_func) { |
1231 | if (opdesc->op_get_currentstateid) | |
1232 | opdesc->op_get_currentstateid(cstate, &op->u); | |
b591480b | 1233 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
8b70484c | 1234 | } else |
1da177e4 | 1235 | BUG_ON(op->status == nfs_ok); |
1da177e4 | 1236 | |
8b70484c TM |
1237 | if (!op->status) { |
1238 | if (opdesc->op_set_currentstateid) | |
1239 | opdesc->op_set_currentstateid(cstate, &op->u); | |
1240 | ||
1241 | if (opdesc->op_flags & OP_CLEAR_STATEID) | |
37c593c5 | 1242 | clear_current_stateid(cstate); |
8b70484c TM |
1243 | |
1244 | if (need_wrongsec_check(rqstp)) | |
1245 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); | |
1246 | } | |
68d93184 | 1247 | |
1da177e4 | 1248 | encode_op: |
49557cc7 | 1249 | /* Only from SEQUENCE */ |
da3846a2 AA |
1250 | if (resp->cstate.status == nfserr_replay_cache) { |
1251 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
abfabf8c | 1252 | status = op->status; |
da3846a2 AA |
1253 | goto out; |
1254 | } | |
a90b061c | 1255 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1256 | op->replay = &cstate->replay_owner->so_replay; |
1da177e4 LT |
1257 | nfsd4_encode_replay(resp, op); |
1258 | status = op->status = op->replay->rp_status; | |
1259 | } else { | |
1260 | nfsd4_encode_operation(resp, op); | |
1261 | status = op->status; | |
1262 | } | |
0407717d BH |
1263 | |
1264 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", | |
1265 | args->ops, args->opcnt, resp->opcnt, op->opnum, | |
1266 | be32_to_cpu(status)); | |
1267 | ||
a4f1706a | 1268 | if (cstate->replay_owner) { |
5ec094c1 | 1269 | nfs4_unlock_state(); |
a4f1706a | 1270 | cstate->replay_owner = NULL; |
1da177e4 | 1271 | } |
7e06b7f9 N |
1272 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
1273 | if (op->opnum == OP_READ && op->u.read.rd_filp) | |
1274 | fput(op->u.read.rd_filp); | |
e2b20950 SA |
1275 | |
1276 | nfsd4_increment_op_stats(op->opnum); | |
1da177e4 LT |
1277 | } |
1278 | ||
da3846a2 | 1279 | resp->cstate.status = status; |
e354d571 AA |
1280 | fh_put(&resp->cstate.current_fh); |
1281 | fh_put(&resp->cstate.save_fh); | |
1282 | BUG_ON(resp->cstate.replay_owner); | |
1da177e4 | 1283 | out: |
2f425878 AA |
1284 | /* Reset deferral mechanism for RPC deferrals */ |
1285 | rqstp->rq_usedeferral = 1; | |
3b12cd98 | 1286 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1287 | return status; |
1288 | } | |
1289 | ||
58e7b33a MJ |
1290 | #define op_encode_hdr_size (2) |
1291 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
1292 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1293 | #define op_encode_change_info_maxsz (5) | |
1294 | #define nfs4_fattr_bitmap_maxsz (4) | |
1295 | ||
1296 | #define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1297 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) | |
1298 | ||
1299 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1300 | ||
1301 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) | |
1302 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ | |
1303 | op_encode_ace_maxsz) | |
1304 | ||
1305 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) | |
1306 | ||
1307 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1308 | { | |
1309 | return (op_encode_hdr_size) * sizeof(__be32); | |
1310 | } | |
1311 | ||
1312 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1313 | { | |
1314 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); | |
1315 | } | |
1316 | ||
1317 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1318 | { | |
1319 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1320 | } | |
1321 | ||
1322 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1323 | { | |
1324 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1325 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1326 | } | |
1327 | ||
1328 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1329 | { | |
1330 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1331 | * sizeof(__be32); | |
1332 | } | |
1333 | ||
1334 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1335 | { | |
1336 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) | |
1337 | * sizeof(__be32); | |
1338 | } | |
1339 | ||
1340 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1341 | { | |
1342 | return (op_encode_hdr_size + op_encode_stateid_maxsz | |
1343 | + op_encode_change_info_maxsz + 1 | |
1344 | + nfs4_fattr_bitmap_maxsz | |
1345 | + op_encode_delegation_maxsz) * sizeof(__be32); | |
1346 | } | |
1347 | ||
1348 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1349 | { | |
1350 | u32 maxcount = 0, rlen = 0; | |
1351 | ||
1352 | maxcount = svc_max_payload(rqstp); | |
1353 | rlen = op->u.read.rd_length; | |
1354 | ||
1355 | if (rlen > maxcount) | |
1356 | rlen = maxcount; | |
1357 | ||
1358 | return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen; | |
1359 | } | |
1360 | ||
1361 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1362 | { | |
1363 | u32 rlen = op->u.readdir.rd_maxcount; | |
1364 | ||
1365 | if (rlen > PAGE_SIZE) | |
1366 | rlen = PAGE_SIZE; | |
1367 | ||
1368 | return (op_encode_hdr_size + op_encode_verifier_maxsz) | |
1369 | * sizeof(__be32) + rlen; | |
1370 | } | |
1371 | ||
1372 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1373 | { | |
1374 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1375 | * sizeof(__be32); | |
1376 | } | |
1377 | ||
1378 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1379 | { | |
1380 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1381 | + op_encode_change_info_maxsz) * sizeof(__be32); | |
1382 | } | |
1383 | ||
1384 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1385 | { | |
1386 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1387 | } | |
1388 | ||
1389 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1390 | { | |
1391 | return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32); | |
1392 | } | |
1393 | ||
1394 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1395 | { | |
1396 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1397 | } | |
1398 | ||
1399 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1400 | { | |
1401 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ | |
1402 | 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\ | |
1403 | 2 + /*eir_server_owner.so_minor_id */\ | |
1404 | /* eir_server_owner.so_major_id<> */\ | |
1405 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1406 | /* eir_server_scope<> */\ | |
1407 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1408 | 1 + /* eir_server_impl_id array length */\ | |
1409 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); | |
1410 | } | |
1411 | ||
1412 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1413 | { | |
1414 | return (op_encode_hdr_size + \ | |
1415 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ | |
1416 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); | |
1417 | } | |
1418 | ||
1419 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1420 | { | |
1421 | return (op_encode_hdr_size + \ | |
1422 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ | |
1423 | 2 + /* csr_sequence, csr_flags */\ | |
1424 | op_encode_channel_attrs_maxsz + \ | |
1425 | op_encode_channel_attrs_maxsz) * sizeof(__be32); | |
1426 | } | |
1427 | ||
20766016 | 1428 | static struct nfsd4_operation nfsd4_ops[] = { |
b591480b BF |
1429 | [OP_ACCESS] = { |
1430 | .op_func = (nfsd4op_func)nfsd4_access, | |
b001a1b6 | 1431 | .op_name = "OP_ACCESS", |
b591480b BF |
1432 | }, |
1433 | [OP_CLOSE] = { | |
1434 | .op_func = (nfsd4op_func)nfsd4_close, | |
58e7b33a | 1435 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1436 | .op_name = "OP_CLOSE", |
58e7b33a | 1437 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
8b70484c TM |
1438 | .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid, |
1439 | .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid, | |
b591480b BF |
1440 | }, |
1441 | [OP_COMMIT] = { | |
1442 | .op_func = (nfsd4op_func)nfsd4_commit, | |
58e7b33a | 1443 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1444 | .op_name = "OP_COMMIT", |
58e7b33a | 1445 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
b591480b BF |
1446 | }, |
1447 | [OP_CREATE] = { | |
1448 | .op_func = (nfsd4op_func)nfsd4_create, | |
d1471053 | 1449 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
b001a1b6 | 1450 | .op_name = "OP_CREATE", |
58e7b33a | 1451 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
b591480b BF |
1452 | }, |
1453 | [OP_DELEGRETURN] = { | |
1454 | .op_func = (nfsd4op_func)nfsd4_delegreturn, | |
58e7b33a | 1455 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1456 | .op_name = "OP_DELEGRETURN", |
58e7b33a | 1457 | .op_rsize_bop = nfsd4_only_status_rsize, |
9428fe1a | 1458 | .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid, |
b591480b BF |
1459 | }, |
1460 | [OP_GETATTR] = { | |
1461 | .op_func = (nfsd4op_func)nfsd4_getattr, | |
eeac294e | 1462 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1463 | .op_name = "OP_GETATTR", |
b591480b BF |
1464 | }, |
1465 | [OP_GETFH] = { | |
1466 | .op_func = (nfsd4op_func)nfsd4_getfh, | |
b001a1b6 | 1467 | .op_name = "OP_GETFH", |
b591480b BF |
1468 | }, |
1469 | [OP_LINK] = { | |
1470 | .op_func = (nfsd4op_func)nfsd4_link, | |
c856694e BF |
1471 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
1472 | | OP_CACHEME, | |
b001a1b6 | 1473 | .op_name = "OP_LINK", |
58e7b33a | 1474 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
b591480b BF |
1475 | }, |
1476 | [OP_LOCK] = { | |
1477 | .op_func = (nfsd4op_func)nfsd4_lock, | |
58e7b33a | 1478 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1479 | .op_name = "OP_LOCK", |
58e7b33a | 1480 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
62cd4a59 | 1481 | .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid, |
b591480b BF |
1482 | }, |
1483 | [OP_LOCKT] = { | |
1484 | .op_func = (nfsd4op_func)nfsd4_lockt, | |
b001a1b6 | 1485 | .op_name = "OP_LOCKT", |
b591480b BF |
1486 | }, |
1487 | [OP_LOCKU] = { | |
1488 | .op_func = (nfsd4op_func)nfsd4_locku, | |
58e7b33a | 1489 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1490 | .op_name = "OP_LOCKU", |
58e7b33a | 1491 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
62cd4a59 | 1492 | .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid, |
b591480b BF |
1493 | }, |
1494 | [OP_LOOKUP] = { | |
1495 | .op_func = (nfsd4op_func)nfsd4_lookup, | |
d1471053 | 1496 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1497 | .op_name = "OP_LOOKUP", |
b591480b BF |
1498 | }, |
1499 | [OP_LOOKUPP] = { | |
1500 | .op_func = (nfsd4op_func)nfsd4_lookupp, | |
d1471053 | 1501 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1502 | .op_name = "OP_LOOKUPP", |
b591480b BF |
1503 | }, |
1504 | [OP_NVERIFY] = { | |
1505 | .op_func = (nfsd4op_func)nfsd4_nverify, | |
b001a1b6 | 1506 | .op_name = "OP_NVERIFY", |
b591480b BF |
1507 | }, |
1508 | [OP_OPEN] = { | |
1509 | .op_func = (nfsd4op_func)nfsd4_open, | |
58e7b33a | 1510 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1511 | .op_name = "OP_OPEN", |
58e7b33a | 1512 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
8b70484c | 1513 | .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid, |
b591480b BF |
1514 | }, |
1515 | [OP_OPEN_CONFIRM] = { | |
1516 | .op_func = (nfsd4op_func)nfsd4_open_confirm, | |
58e7b33a | 1517 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1518 | .op_name = "OP_OPEN_CONFIRM", |
58e7b33a | 1519 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1520 | }, |
1521 | [OP_OPEN_DOWNGRADE] = { | |
1522 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, | |
58e7b33a | 1523 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1524 | .op_name = "OP_OPEN_DOWNGRADE", |
58e7b33a | 1525 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
9428fe1a TM |
1526 | .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid, |
1527 | .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid, | |
b591480b BF |
1528 | }, |
1529 | [OP_PUTFH] = { | |
1530 | .op_func = (nfsd4op_func)nfsd4_putfh, | |
68d93184 | 1531 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1532 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1533 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1534 | .op_name = "OP_PUTFH", |
58e7b33a | 1535 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1536 | }, |
eeac294e | 1537 | [OP_PUTPUBFH] = { |
a1c8c4d1 | 1538 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
68d93184 | 1539 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1540 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1541 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1542 | .op_name = "OP_PUTPUBFH", |
58e7b33a | 1543 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
eeac294e | 1544 | }, |
b591480b BF |
1545 | [OP_PUTROOTFH] = { |
1546 | .op_func = (nfsd4op_func)nfsd4_putrootfh, | |
68d93184 | 1547 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1548 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1549 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1550 | .op_name = "OP_PUTROOTFH", |
58e7b33a | 1551 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1552 | }, |
1553 | [OP_READ] = { | |
1554 | .op_func = (nfsd4op_func)nfsd4_read, | |
58e7b33a | 1555 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1556 | .op_name = "OP_READ", |
58e7b33a | 1557 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
30813e27 | 1558 | .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid, |
b591480b BF |
1559 | }, |
1560 | [OP_READDIR] = { | |
1561 | .op_func = (nfsd4op_func)nfsd4_readdir, | |
58e7b33a | 1562 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1563 | .op_name = "OP_READDIR", |
58e7b33a | 1564 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
b591480b BF |
1565 | }, |
1566 | [OP_READLINK] = { | |
1567 | .op_func = (nfsd4op_func)nfsd4_readlink, | |
b001a1b6 | 1568 | .op_name = "OP_READLINK", |
b591480b BF |
1569 | }, |
1570 | [OP_REMOVE] = { | |
1571 | .op_func = (nfsd4op_func)nfsd4_remove, | |
c856694e | 1572 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1573 | .op_name = "OP_REMOVE", |
58e7b33a | 1574 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
b591480b BF |
1575 | }, |
1576 | [OP_RENAME] = { | |
1577 | .op_func = (nfsd4op_func)nfsd4_rename, | |
c856694e | 1578 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1579 | .op_name = "OP_RENAME", |
58e7b33a | 1580 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
b591480b BF |
1581 | }, |
1582 | [OP_RENEW] = { | |
1583 | .op_func = (nfsd4op_func)nfsd4_renew, | |
58e7b33a MJ |
1584 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1585 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1586 | .op_name = "OP_RENEW", |
58e7b33a MJ |
1587 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
1588 | ||
b591480b BF |
1589 | }, |
1590 | [OP_RESTOREFH] = { | |
1591 | .op_func = (nfsd4op_func)nfsd4_restorefh, | |
68d93184 | 1592 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1593 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1594 | .op_name = "OP_RESTOREFH", |
58e7b33a | 1595 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1596 | }, |
1597 | [OP_SAVEFH] = { | |
1598 | .op_func = (nfsd4op_func)nfsd4_savefh, | |
58e7b33a | 1599 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1600 | .op_name = "OP_SAVEFH", |
58e7b33a | 1601 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1602 | }, |
dcb488a3 AA |
1603 | [OP_SECINFO] = { |
1604 | .op_func = (nfsd4op_func)nfsd4_secinfo, | |
68d93184 | 1605 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1606 | .op_name = "OP_SECINFO", |
dcb488a3 | 1607 | }, |
b591480b BF |
1608 | [OP_SETATTR] = { |
1609 | .op_func = (nfsd4op_func)nfsd4_setattr, | |
b001a1b6 | 1610 | .op_name = "OP_SETATTR", |
c856694e | 1611 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1612 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
1e97b519 | 1613 | .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid, |
b591480b BF |
1614 | }, |
1615 | [OP_SETCLIENTID] = { | |
1616 | .op_func = (nfsd4op_func)nfsd4_setclientid, | |
58e7b33a | 1617 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1618 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1619 | .op_name = "OP_SETCLIENTID", |
58e7b33a | 1620 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
b591480b BF |
1621 | }, |
1622 | [OP_SETCLIENTID_CONFIRM] = { | |
1623 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, | |
58e7b33a | 1624 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1625 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1626 | .op_name = "OP_SETCLIENTID_CONFIRM", |
58e7b33a | 1627 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1628 | }, |
1629 | [OP_VERIFY] = { | |
1630 | .op_func = (nfsd4op_func)nfsd4_verify, | |
b001a1b6 | 1631 | .op_name = "OP_VERIFY", |
b591480b BF |
1632 | }, |
1633 | [OP_WRITE] = { | |
1634 | .op_func = (nfsd4op_func)nfsd4_write, | |
c856694e | 1635 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1636 | .op_name = "OP_WRITE", |
58e7b33a | 1637 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
30813e27 | 1638 | .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid, |
b591480b BF |
1639 | }, |
1640 | [OP_RELEASE_LOCKOWNER] = { | |
1641 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, | |
58e7b33a MJ |
1642 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1643 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1644 | .op_name = "OP_RELEASE_LOCKOWNER", |
58e7b33a | 1645 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1646 | }, |
069b6ad4 AA |
1647 | |
1648 | /* NFSv4.1 operations */ | |
1649 | [OP_EXCHANGE_ID] = { | |
1650 | .op_func = (nfsd4op_func)nfsd4_exchange_id, | |
58e7b33a MJ |
1651 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1652 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1653 | .op_name = "OP_EXCHANGE_ID", |
58e7b33a | 1654 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
069b6ad4 | 1655 | }, |
1d1bc8f2 BF |
1656 | [OP_BIND_CONN_TO_SESSION] = { |
1657 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, | |
58e7b33a MJ |
1658 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1659 | | OP_MODIFIES_SOMETHING, | |
1d1bc8f2 | 1660 | .op_name = "OP_BIND_CONN_TO_SESSION", |
58e7b33a | 1661 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
1d1bc8f2 | 1662 | }, |
069b6ad4 AA |
1663 | [OP_CREATE_SESSION] = { |
1664 | .op_func = (nfsd4op_func)nfsd4_create_session, | |
58e7b33a MJ |
1665 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1666 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1667 | .op_name = "OP_CREATE_SESSION", |
58e7b33a | 1668 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
069b6ad4 AA |
1669 | }, |
1670 | [OP_DESTROY_SESSION] = { | |
1671 | .op_func = (nfsd4op_func)nfsd4_destroy_session, | |
58e7b33a MJ |
1672 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1673 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1674 | .op_name = "OP_DESTROY_SESSION", |
58e7b33a | 1675 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
069b6ad4 AA |
1676 | }, |
1677 | [OP_SEQUENCE] = { | |
1678 | .op_func = (nfsd4op_func)nfsd4_sequence, | |
f9bb94c4 | 1679 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1680 | .op_name = "OP_SEQUENCE", |
1681 | }, | |
094b5d74 | 1682 | [OP_DESTROY_CLIENTID] = { |
345c2842 | 1683 | .op_func = (nfsd4op_func)nfsd4_destroy_clientid, |
58e7b33a MJ |
1684 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1685 | | OP_MODIFIES_SOMETHING, | |
094b5d74 | 1686 | .op_name = "OP_DESTROY_CLIENTID", |
58e7b33a | 1687 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
094b5d74 | 1688 | }, |
4dc6ec00 BF |
1689 | [OP_RECLAIM_COMPLETE] = { |
1690 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, | |
58e7b33a | 1691 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
4dc6ec00 | 1692 | .op_name = "OP_RECLAIM_COMPLETE", |
58e7b33a | 1693 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
4dc6ec00 | 1694 | }, |
04f4ad16 BF |
1695 | [OP_SECINFO_NO_NAME] = { |
1696 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, | |
68d93184 | 1697 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 BF |
1698 | .op_name = "OP_SECINFO_NO_NAME", |
1699 | }, | |
17456804 BS |
1700 | [OP_TEST_STATEID] = { |
1701 | .op_func = (nfsd4op_func)nfsd4_test_stateid, | |
1702 | .op_flags = ALLOWED_WITHOUT_FH, | |
1703 | .op_name = "OP_TEST_STATEID", | |
1704 | }, | |
e1ca12df BS |
1705 | [OP_FREE_STATEID] = { |
1706 | .op_func = (nfsd4op_func)nfsd4_free_stateid, | |
58e7b33a | 1707 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
e1ca12df | 1708 | .op_name = "OP_FREE_STATEID", |
58e7b33a | 1709 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
e1ca12df | 1710 | }, |
b591480b BF |
1711 | }; |
1712 | ||
f1c7f79b | 1713 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
1714 | { |
1715 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
1716 | return nfsd4_ops[opnum].op_name; | |
1717 | return "unknown_operation"; | |
1718 | } | |
1719 | ||
1da177e4 | 1720 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
1721 | struct nfsd4_voidargs { int dummy; }; |
1722 | ||
1da177e4 | 1723 | static struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f YZ |
1724 | [NFSPROC4_NULL] = { |
1725 | .pc_func = (svc_procfunc) nfsd4_proc_null, | |
1726 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, | |
1727 | .pc_argsize = sizeof(struct nfsd4_voidargs), | |
1728 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
1729 | .pc_cachetype = RC_NOCACHE, | |
1730 | .pc_xdrressize = 1, | |
1731 | }, | |
1732 | [NFSPROC4_COMPOUND] = { | |
1733 | .pc_func = (svc_procfunc) nfsd4_proc_compound, | |
1734 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, | |
1735 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, | |
1736 | .pc_argsize = sizeof(struct nfsd4_compoundargs), | |
1737 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 1738 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
1739 | .pc_cachetype = RC_NOCACHE, |
1740 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
1741 | }, | |
1da177e4 LT |
1742 | }; |
1743 | ||
1744 | struct svc_version nfsd_version4 = { | |
1745 | .vs_vers = 4, | |
1746 | .vs_nproc = 2, | |
1747 | .vs_proc = nfsd_procedures4, | |
1748 | .vs_dispatch = nfsd_dispatch, | |
1749 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
1750 | }; | |
1751 | ||
1752 | /* | |
1753 | * Local variables: | |
1754 | * c-basic-offset: 8 | |
1755 | * End: | |
1756 | */ |