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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" |
3320fef1 | 43 | #include "netns.h" |
1da177e4 LT |
44 | |
45 | #define NFSDDBG_FACILITY NFSDDBG_PROC | |
46 | ||
3c8e0316 YZ |
47 | static u32 nfsd_attrmask[] = { |
48 | NFSD_WRITEABLE_ATTRS_WORD0, | |
49 | NFSD_WRITEABLE_ATTRS_WORD1, | |
50 | NFSD_WRITEABLE_ATTRS_WORD2 | |
51 | }; | |
52 | ||
53 | static u32 nfsd41_ex_attrmask[] = { | |
54 | NFSD_SUPPATTR_EXCLCREAT_WORD0, | |
55 | NFSD_SUPPATTR_EXCLCREAT_WORD1, | |
56 | NFSD_SUPPATTR_EXCLCREAT_WORD2 | |
57 | }; | |
58 | ||
59 | static __be32 | |
60 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
61 | u32 *bmval, u32 *writable) | |
62 | { | |
63 | struct dentry *dentry = cstate->current_fh.fh_dentry; | |
3c8e0316 YZ |
64 | |
65 | /* | |
66 | * Check about attributes are supported by the NFSv4 server or not. | |
67 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. | |
68 | */ | |
69 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || | |
70 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || | |
71 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) | |
72 | return nfserr_attrnotsupp; | |
73 | ||
74 | /* | |
a06b1261 | 75 | * Check FATTR4_WORD0_ACL can be supported |
3c8e0316 YZ |
76 | * in current environment or not. |
77 | */ | |
78 | if (bmval[0] & FATTR4_WORD0_ACL) { | |
79 | if (!IS_POSIXACL(dentry->d_inode)) | |
80 | return nfserr_attrnotsupp; | |
81 | } | |
3c8e0316 YZ |
82 | |
83 | /* | |
84 | * According to spec, read-only attributes return ERR_INVAL. | |
85 | */ | |
86 | if (writable) { | |
87 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || | |
88 | (bmval[2] & ~writable[2])) | |
89 | return nfserr_inval; | |
90 | } | |
91 | ||
92 | return nfs_ok; | |
93 | } | |
94 | ||
95 | static __be32 | |
96 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, | |
97 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) | |
98 | { | |
99 | __be32 status = nfs_ok; | |
100 | ||
101 | if (open->op_create == NFS4_OPEN_CREATE) { | |
102 | if (open->op_createmode == NFS4_CREATE_UNCHECKED | |
103 | || open->op_createmode == NFS4_CREATE_GUARDED) | |
104 | status = check_attr_support(rqstp, cstate, | |
105 | open->op_bmval, nfsd_attrmask); | |
106 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) | |
107 | status = check_attr_support(rqstp, cstate, | |
108 | open->op_bmval, nfsd41_ex_attrmask); | |
109 | } | |
110 | ||
111 | return status; | |
112 | } | |
113 | ||
9208faf2 YZ |
114 | static int |
115 | is_create_with_attrs(struct nfsd4_open *open) | |
116 | { | |
117 | return open->op_create == NFS4_OPEN_CREATE | |
118 | && (open->op_createmode == NFS4_CREATE_UNCHECKED | |
119 | || open->op_createmode == NFS4_CREATE_GUARDED | |
120 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); | |
121 | } | |
122 | ||
123 | /* | |
124 | * if error occurs when setting the acl, just clear the acl bit | |
125 | * in the returned attr bitmap. | |
126 | */ | |
127 | static void | |
128 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, | |
129 | struct nfs4_acl *acl, u32 *bmval) | |
130 | { | |
131 | __be32 status; | |
132 | ||
133 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); | |
134 | if (status) | |
135 | /* | |
136 | * We should probably fail the whole open at this point, | |
137 | * but we've already created the file, so it's too late; | |
138 | * So this seems the least of evils: | |
139 | */ | |
140 | bmval[0] &= ~FATTR4_WORD0_ACL; | |
141 | } | |
142 | ||
1da177e4 LT |
143 | static inline void |
144 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) | |
145 | { | |
146 | fh_put(dst); | |
147 | dget(src->fh_dentry); | |
148 | if (src->fh_export) | |
149 | cache_get(&src->fh_export->h); | |
150 | *dst = *src; | |
151 | } | |
152 | ||
b37ad28b | 153 | static __be32 |
dc730e17 | 154 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
1da177e4 | 155 | { |
b37ad28b | 156 | __be32 status; |
1da177e4 LT |
157 | |
158 | if (open->op_truncate && | |
159 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) | |
160 | return nfserr_inval; | |
161 | ||
a043226b BF |
162 | accmode |= NFSD_MAY_READ_IF_EXEC; |
163 | ||
1da177e4 | 164 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
8837abca | 165 | accmode |= NFSD_MAY_READ; |
9801d8a3 | 166 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
8837abca | 167 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
57ecb34f | 168 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
8837abca | 169 | accmode |= NFSD_MAY_WRITE; |
1da177e4 LT |
170 | |
171 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); | |
172 | ||
173 | return status; | |
174 | } | |
175 | ||
aadab6c6 BF |
176 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
177 | { | |
178 | umode_t mode = fh->fh_dentry->d_inode->i_mode; | |
179 | ||
180 | if (S_ISREG(mode)) | |
181 | return nfs_ok; | |
182 | if (S_ISDIR(mode)) | |
183 | return nfserr_isdir; | |
184 | /* | |
185 | * Using err_symlink as our catch-all case may look odd; but | |
186 | * there's no other obvious error for this case in 4.0, and we | |
187 | * happen to know that it will cause the linux v4 client to do | |
188 | * the right thing on attempts to open something other than a | |
189 | * regular file. | |
190 | */ | |
191 | return nfserr_symlink; | |
192 | } | |
193 | ||
b37ad28b | 194 | static __be32 |
1da177e4 LT |
195 | do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
196 | { | |
59deeb9e | 197 | struct svc_fh *resfh; |
b37ad28b | 198 | __be32 status; |
1da177e4 | 199 | |
59deeb9e BF |
200 | resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL); |
201 | if (!resfh) | |
202 | return nfserr_jukebox; | |
203 | fh_init(resfh, NFS4_FHSIZE); | |
1da177e4 LT |
204 | open->op_truncate = 0; |
205 | ||
206 | if (open->op_create) { | |
79fb54ab BH |
207 | /* FIXME: check session persistence and pnfs flags. |
208 | * The nfsv4.1 spec requires the following semantics: | |
209 | * | |
210 | * Persistent | pNFS | Server REQUIRED | Client Allowed | |
211 | * Reply Cache | server | | | |
212 | * -------------+--------+-----------------+-------------------- | |
213 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
214 | * | | | (SHOULD) | |
215 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 | |
216 | * | | | (SHOULD NOT) | |
217 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
218 | * yes | no | GUARDED4 | GUARDED4 | |
219 | * yes | yes | GUARDED4 | GUARDED4 | |
220 | */ | |
221 | ||
1da177e4 LT |
222 | /* |
223 | * Note: create modes (UNCHECKED,GUARDED...) are the same | |
ac6721a1 | 224 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
1da177e4 | 225 | */ |
ac6721a1 | 226 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
1da177e4 | 227 | open->op_fname.len, &open->op_iattr, |
59deeb9e | 228 | resfh, open->op_createmode, |
749997e5 | 229 | (u32 *)open->op_verf.data, |
856121b2 | 230 | &open->op_truncate, &open->op_created); |
749997e5 | 231 | |
99f88726 BF |
232 | /* |
233 | * Following rfc 3530 14.2.16, use the returned bitmask | |
234 | * to indicate which attributes we used to store the | |
235 | * verifier: | |
749997e5 JL |
236 | */ |
237 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) | |
99f88726 | 238 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
9dc4e6c4 | 239 | FATTR4_WORD1_TIME_MODIFY); |
af85852d | 240 | } else { |
1da177e4 | 241 | status = nfsd_lookup(rqstp, current_fh, |
59deeb9e | 242 | open->op_fname.data, open->op_fname.len, resfh); |
1da177e4 LT |
243 | fh_unlock(current_fh); |
244 | } | |
9dc4e6c4 BF |
245 | if (status) |
246 | goto out; | |
247 | status = nfsd_check_obj_isreg(resfh); | |
af85852d BF |
248 | if (status) |
249 | goto out; | |
1da177e4 | 250 | |
9208faf2 | 251 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
59deeb9e | 252 | do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval); |
9208faf2 | 253 | |
af85852d | 254 | /* set reply cache */ |
fe0750e5 | 255 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
59deeb9e | 256 | &resfh->fh_handle); |
856121b2 | 257 | if (!open->op_created) |
59deeb9e | 258 | status = do_open_permission(rqstp, resfh, open, |
8837abca | 259 | NFSD_MAY_NOP); |
41fd1e42 | 260 | set_change_info(&open->op_cinfo, current_fh); |
59deeb9e | 261 | fh_dup2(current_fh, resfh); |
af85852d | 262 | out: |
59deeb9e BF |
263 | fh_put(resfh); |
264 | kfree(resfh); | |
1da177e4 LT |
265 | return status; |
266 | } | |
267 | ||
b37ad28b | 268 | static __be32 |
1da177e4 LT |
269 | do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
270 | { | |
b37ad28b | 271 | __be32 status; |
1da177e4 | 272 | |
1da177e4 LT |
273 | /* We don't know the target directory, and therefore can not |
274 | * set the change info | |
275 | */ | |
276 | ||
277 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
278 | ||
279 | /* set replay cache */ | |
fe0750e5 | 280 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
a4773c08 | 281 | ¤t_fh->fh_handle); |
1da177e4 LT |
282 | |
283 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
284 | (open->op_iattr.ia_size == 0); | |
285 | ||
8837abca MS |
286 | status = do_open_permission(rqstp, current_fh, open, |
287 | NFSD_MAY_OWNER_OVERRIDE); | |
1da177e4 LT |
288 | |
289 | return status; | |
290 | } | |
291 | ||
60adfc50 AA |
292 | static void |
293 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) | |
294 | { | |
295 | struct nfsd4_sessionid *sid = | |
296 | (struct nfsd4_sessionid *)session->se_sessionid.data; | |
297 | ||
298 | clid->cl_boot = sid->clientid.cl_boot; | |
299 | clid->cl_id = sid->clientid.cl_id; | |
300 | } | |
1da177e4 | 301 | |
7191155b | 302 | static __be32 |
ca364317 | 303 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
a4f1706a | 304 | struct nfsd4_open *open) |
1da177e4 | 305 | { |
b37ad28b | 306 | __be32 status; |
6668958f | 307 | struct nfsd4_compoundres *resp; |
3320fef1 SK |
308 | struct net *net = SVC_NET(rqstp); |
309 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); | |
6668958f | 310 | |
fe0750e5 | 311 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
1da177e4 | 312 | (int)open->op_fname.len, open->op_fname.data, |
fe0750e5 | 313 | open->op_openowner); |
1da177e4 | 314 | |
1da177e4 LT |
315 | /* This check required by spec. */ |
316 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
317 | return nfserr_inval; | |
318 | ||
856121b2 | 319 | open->op_created = 0; |
ab1350b2 MJ |
320 | /* |
321 | * RFC5661 18.51.3 | |
322 | * Before RECLAIM_COMPLETE done, server should deny new lock | |
323 | */ | |
324 | if (nfsd4_has_session(cstate) && | |
a52d726b JL |
325 | !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, |
326 | &cstate->session->se_client->cl_flags) && | |
ab1350b2 MJ |
327 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
328 | return nfserr_grace; | |
329 | ||
60adfc50 AA |
330 | if (nfsd4_has_session(cstate)) |
331 | copy_clientid(&open->op_clientid, cstate->session); | |
332 | ||
1da177e4 LT |
333 | nfs4_lock_state(); |
334 | ||
335 | /* check seqid for replay. set nfs4_owner */ | |
6668958f | 336 | resp = rqstp->rq_resp; |
3320fef1 | 337 | status = nfsd4_process_open1(&resp->cstate, open, nn); |
a90b061c | 338 | if (status == nfserr_replay_me) { |
fe0750e5 | 339 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
ca364317 | 340 | fh_put(&cstate->current_fh); |
a4773c08 BF |
341 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
342 | &rp->rp_openfh); | |
8837abca | 343 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
344 | if (status) |
345 | dprintk("nfsd4_open: replay failed" | |
346 | " restoring previous filehandle\n"); | |
347 | else | |
a90b061c | 348 | status = nfserr_replay_me; |
1da177e4 LT |
349 | } |
350 | if (status) | |
351 | goto out; | |
fb553c0f | 352 | |
3c8e0316 YZ |
353 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
354 | if (status) | |
355 | goto out; | |
356 | ||
fb553c0f BF |
357 | /* Openowner is now set, so sequence id will get bumped. Now we need |
358 | * these checks before we do any creates: */ | |
cbd0d51a | 359 | status = nfserr_grace; |
3320fef1 | 360 | if (locks_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
361 | goto out; |
362 | status = nfserr_no_grace; | |
3320fef1 | 363 | if (!locks_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 364 | goto out; |
fb553c0f | 365 | |
1da177e4 | 366 | switch (open->op_claim_type) { |
0dd3c192 | 367 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
1da177e4 | 368 | case NFS4_OPEN_CLAIM_NULL: |
ca364317 BF |
369 | status = do_open_lookup(rqstp, &cstate->current_fh, |
370 | open); | |
1da177e4 LT |
371 | if (status) |
372 | goto out; | |
373 | break; | |
374 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
dad1c067 | 375 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
3320fef1 SK |
376 | status = nfs4_check_open_reclaim(&open->op_clientid, |
377 | cstate->minorversion, | |
378 | nn); | |
0cf99b91 MJ |
379 | if (status) |
380 | goto out; | |
8b289b2c BF |
381 | case NFS4_OPEN_CLAIM_FH: |
382 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: | |
ca364317 BF |
383 | status = do_open_fhandle(rqstp, &cstate->current_fh, |
384 | open); | |
1da177e4 LT |
385 | if (status) |
386 | goto out; | |
387 | break; | |
8b289b2c | 388 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
1da177e4 | 389 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
dad1c067 | 390 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
2fdada03 | 391 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
1da177e4 LT |
392 | open->op_claim_type); |
393 | status = nfserr_notsupp; | |
394 | goto out; | |
395 | default: | |
2fdada03 | 396 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
1da177e4 LT |
397 | open->op_claim_type); |
398 | status = nfserr_inval; | |
399 | goto out; | |
400 | } | |
401 | /* | |
402 | * nfsd4_process_open2() does the actual opening of the file. If | |
403 | * successful, it (1) truncates the file if open->op_truncate was | |
404 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
405 | */ | |
ca364317 | 406 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
856121b2 | 407 | WARN_ON(status && open->op_created); |
1da177e4 | 408 | out: |
d29b20cd | 409 | nfsd4_cleanup_open_state(open, status); |
fe0750e5 BF |
410 | if (open->op_openowner) |
411 | cstate->replay_owner = &open->op_openowner->oo_owner; | |
7c13f344 | 412 | else |
5ec094c1 | 413 | nfs4_unlock_state(); |
1da177e4 LT |
414 | return status; |
415 | } | |
416 | ||
417 | /* | |
418 | * filehandle-manipulating ops. | |
419 | */ | |
7191155b | 420 | static __be32 |
b591480b BF |
421 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
422 | struct svc_fh **getfh) | |
1da177e4 | 423 | { |
ca364317 | 424 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
425 | return nfserr_nofilehandle; |
426 | ||
ca364317 | 427 | *getfh = &cstate->current_fh; |
1da177e4 LT |
428 | return nfs_ok; |
429 | } | |
430 | ||
7191155b | 431 | static __be32 |
ca364317 BF |
432 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
433 | struct nfsd4_putfh *putfh) | |
1da177e4 | 434 | { |
ca364317 BF |
435 | fh_put(&cstate->current_fh); |
436 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; | |
437 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, | |
438 | putfh->pf_fhlen); | |
68d93184 | 439 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
1da177e4 LT |
440 | } |
441 | ||
7191155b | 442 | static __be32 |
b591480b BF |
443 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
444 | void *arg) | |
1da177e4 | 445 | { |
b37ad28b | 446 | __be32 status; |
1da177e4 | 447 | |
ca364317 | 448 | fh_put(&cstate->current_fh); |
df547efb | 449 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
1da177e4 LT |
450 | return status; |
451 | } | |
452 | ||
7191155b | 453 | static __be32 |
b591480b BF |
454 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
455 | void *arg) | |
1da177e4 | 456 | { |
ca364317 | 457 | if (!cstate->save_fh.fh_dentry) |
1da177e4 LT |
458 | return nfserr_restorefh; |
459 | ||
ca364317 | 460 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
37c593c5 TM |
461 | if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) { |
462 | memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t)); | |
463 | SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG); | |
464 | } | |
1da177e4 LT |
465 | return nfs_ok; |
466 | } | |
467 | ||
7191155b | 468 | static __be32 |
b591480b BF |
469 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
470 | void *arg) | |
1da177e4 | 471 | { |
ca364317 | 472 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
473 | return nfserr_nofilehandle; |
474 | ||
ca364317 | 475 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
37c593c5 TM |
476 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
477 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); | |
478 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); | |
479 | } | |
1da177e4 LT |
480 | return nfs_ok; |
481 | } | |
482 | ||
483 | /* | |
484 | * misc nfsv4 ops | |
485 | */ | |
7191155b | 486 | static __be32 |
ca364317 BF |
487 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
488 | struct nfsd4_access *access) | |
1da177e4 LT |
489 | { |
490 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) | |
491 | return nfserr_inval; | |
492 | ||
493 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
494 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
495 | &access->ac_supported); | |
1da177e4 LT |
496 | } |
497 | ||
ab4684d1 CL |
498 | static void gen_boot_verifier(nfs4_verifier *verifier) |
499 | { | |
500 | __be32 verf[2]; | |
501 | ||
502 | verf[0] = (__be32)nfssvc_boot.tv_sec; | |
503 | verf[1] = (__be32)nfssvc_boot.tv_usec; | |
504 | memcpy(verifier->data, verf, sizeof(verifier->data)); | |
505 | } | |
506 | ||
7191155b | 507 | static __be32 |
ca364317 BF |
508 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
509 | struct nfsd4_commit *commit) | |
1da177e4 | 510 | { |
ab4684d1 | 511 | gen_boot_verifier(&commit->co_verf); |
75c096f7 | 512 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
ca364317 | 513 | commit->co_count); |
1da177e4 LT |
514 | } |
515 | ||
b37ad28b | 516 | static __be32 |
ca364317 BF |
517 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
518 | struct nfsd4_create *create) | |
1da177e4 LT |
519 | { |
520 | struct svc_fh resfh; | |
b37ad28b | 521 | __be32 status; |
1da177e4 LT |
522 | dev_t rdev; |
523 | ||
524 | fh_init(&resfh, NFS4_FHSIZE); | |
525 | ||
8837abca MS |
526 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
527 | NFSD_MAY_CREATE); | |
1da177e4 LT |
528 | if (status) |
529 | return status; | |
530 | ||
3c8e0316 YZ |
531 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
532 | nfsd_attrmask); | |
533 | if (status) | |
534 | return status; | |
535 | ||
1da177e4 LT |
536 | switch (create->cr_type) { |
537 | case NF4LNK: | |
538 | /* ugh! we have to null-terminate the linktext, or | |
539 | * vfs_symlink() will choke. it is always safe to | |
540 | * null-terminate by brute force, since at worst we | |
541 | * will overwrite the first byte of the create namelen | |
542 | * in the XDR buffer, which has already been extracted | |
543 | * during XDR decode. | |
544 | */ | |
545 | create->cr_linkname[create->cr_linklen] = 0; | |
546 | ||
ca364317 BF |
547 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
548 | create->cr_name, create->cr_namelen, | |
549 | create->cr_linkname, create->cr_linklen, | |
550 | &resfh, &create->cr_iattr); | |
1da177e4 LT |
551 | break; |
552 | ||
553 | case NF4BLK: | |
554 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
555 | if (MAJOR(rdev) != create->cr_specdata1 || | |
556 | MINOR(rdev) != create->cr_specdata2) | |
557 | return nfserr_inval; | |
ca364317 BF |
558 | status = nfsd_create(rqstp, &cstate->current_fh, |
559 | create->cr_name, create->cr_namelen, | |
560 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
561 | break; |
562 | ||
563 | case NF4CHR: | |
564 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
565 | if (MAJOR(rdev) != create->cr_specdata1 || | |
566 | MINOR(rdev) != create->cr_specdata2) | |
567 | return nfserr_inval; | |
ca364317 BF |
568 | status = nfsd_create(rqstp, &cstate->current_fh, |
569 | create->cr_name, create->cr_namelen, | |
570 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
571 | break; |
572 | ||
573 | case NF4SOCK: | |
ca364317 BF |
574 | status = nfsd_create(rqstp, &cstate->current_fh, |
575 | create->cr_name, create->cr_namelen, | |
576 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
577 | break; |
578 | ||
579 | case NF4FIFO: | |
ca364317 BF |
580 | status = nfsd_create(rqstp, &cstate->current_fh, |
581 | create->cr_name, create->cr_namelen, | |
582 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
583 | break; |
584 | ||
585 | case NF4DIR: | |
586 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
587 | status = nfsd_create(rqstp, &cstate->current_fh, |
588 | create->cr_name, create->cr_namelen, | |
589 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
590 | break; |
591 | ||
592 | default: | |
593 | status = nfserr_badtype; | |
594 | } | |
595 | ||
9208faf2 YZ |
596 | if (status) |
597 | goto out; | |
1da177e4 | 598 | |
9208faf2 YZ |
599 | if (create->cr_acl != NULL) |
600 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
601 | create->cr_bmval); | |
602 | ||
603 | fh_unlock(&cstate->current_fh); | |
604 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
605 | fh_dup2(&cstate->current_fh, &resfh); | |
606 | out: | |
1da177e4 LT |
607 | fh_put(&resfh); |
608 | return status; | |
609 | } | |
610 | ||
7191155b | 611 | static __be32 |
ca364317 BF |
612 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
613 | struct nfsd4_getattr *getattr) | |
1da177e4 | 614 | { |
b37ad28b | 615 | __be32 status; |
1da177e4 | 616 | |
8837abca | 617 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
618 | if (status) |
619 | return status; | |
620 | ||
621 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
622 | return nfserr_inval; | |
623 | ||
7e705706 AA |
624 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
625 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
626 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 627 | |
ca364317 | 628 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
629 | return nfs_ok; |
630 | } | |
631 | ||
7191155b | 632 | static __be32 |
ca364317 BF |
633 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
634 | struct nfsd4_link *link) | |
1da177e4 | 635 | { |
b37ad28b | 636 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 637 | |
ca364317 | 638 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 639 | return status; |
ca364317 BF |
640 | status = nfsd_link(rqstp, &cstate->current_fh, |
641 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 642 | if (!status) |
ca364317 | 643 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
644 | return status; |
645 | } | |
646 | ||
0ff7ab46 | 647 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
648 | { |
649 | struct svc_fh tmp_fh; | |
b37ad28b | 650 | __be32 ret; |
1da177e4 LT |
651 | |
652 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
653 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
654 | if (ret) | |
1da177e4 | 655 | return ret; |
0ff7ab46 | 656 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
657 | fh_put(&tmp_fh); |
658 | return nfserr_noent; | |
659 | } | |
660 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
661 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
662 | } | |
663 | ||
664 | static __be32 | |
665 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
666 | void *arg) | |
667 | { | |
668 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
669 | } |
670 | ||
7191155b | 671 | static __be32 |
ca364317 BF |
672 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
673 | struct nfsd4_lookup *lookup) | |
1da177e4 | 674 | { |
ca364317 BF |
675 | return nfsd_lookup(rqstp, &cstate->current_fh, |
676 | lookup->lo_name, lookup->lo_len, | |
677 | &cstate->current_fh); | |
1da177e4 LT |
678 | } |
679 | ||
7191155b | 680 | static __be32 |
ca364317 BF |
681 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
682 | struct nfsd4_read *read) | |
1da177e4 | 683 | { |
b37ad28b | 684 | __be32 status; |
1da177e4 LT |
685 | |
686 | /* no need to check permission - this will be done in nfsd_read() */ | |
687 | ||
7e06b7f9 | 688 | read->rd_filp = NULL; |
1da177e4 LT |
689 | if (read->rd_offset >= OFFSET_MAX) |
690 | return nfserr_inval; | |
691 | ||
692 | nfs4_lock_state(); | |
693 | /* check stateid */ | |
5ccb0066 SK |
694 | if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
695 | cstate, &read->rd_stateid, | |
dd453dfd | 696 | RD_STATE, &read->rd_filp))) { |
1da177e4 LT |
697 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
698 | goto out; | |
699 | } | |
7e06b7f9 N |
700 | if (read->rd_filp) |
701 | get_file(read->rd_filp); | |
1da177e4 LT |
702 | status = nfs_ok; |
703 | out: | |
704 | nfs4_unlock_state(); | |
705 | read->rd_rqstp = rqstp; | |
ca364317 | 706 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
707 | return status; |
708 | } | |
709 | ||
7191155b | 710 | static __be32 |
ca364317 BF |
711 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
712 | struct nfsd4_readdir *readdir) | |
1da177e4 LT |
713 | { |
714 | u64 cookie = readdir->rd_cookie; | |
715 | static const nfs4_verifier zeroverf; | |
716 | ||
717 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
718 | ||
719 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
720 | return nfserr_inval; | |
721 | ||
7e705706 AA |
722 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
723 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
724 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 725 | |
832023bf | 726 | if ((cookie == 1) || (cookie == 2) || |
1da177e4 LT |
727 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
728 | return nfserr_bad_cookie; | |
729 | ||
730 | readdir->rd_rqstp = rqstp; | |
ca364317 | 731 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
732 | return nfs_ok; |
733 | } | |
734 | ||
7191155b | 735 | static __be32 |
ca364317 BF |
736 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
737 | struct nfsd4_readlink *readlink) | |
1da177e4 LT |
738 | { |
739 | readlink->rl_rqstp = rqstp; | |
ca364317 | 740 | readlink->rl_fhp = &cstate->current_fh; |
1da177e4 LT |
741 | return nfs_ok; |
742 | } | |
743 | ||
7191155b | 744 | static __be32 |
ca364317 BF |
745 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
746 | struct nfsd4_remove *remove) | |
1da177e4 | 747 | { |
b37ad28b | 748 | __be32 status; |
1da177e4 | 749 | |
5ccb0066 | 750 | if (locks_in_grace(SVC_NET(rqstp))) |
c815afc7 | 751 | return nfserr_grace; |
ca364317 BF |
752 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
753 | remove->rm_name, remove->rm_namelen); | |
1da177e4 | 754 | if (!status) { |
ca364317 BF |
755 | fh_unlock(&cstate->current_fh); |
756 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
757 | } |
758 | return status; | |
759 | } | |
760 | ||
7191155b | 761 | static __be32 |
ca364317 BF |
762 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
763 | struct nfsd4_rename *rename) | |
1da177e4 | 764 | { |
b37ad28b | 765 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 766 | |
ca364317 | 767 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 768 | return status; |
5ccb0066 SK |
769 | if (locks_in_grace(SVC_NET(rqstp)) && |
770 | !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) | |
c815afc7 | 771 | return nfserr_grace; |
ca364317 BF |
772 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
773 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 LT |
774 | rename->rn_tname, rename->rn_tnamelen); |
775 | ||
776 | /* the underlying filesystem returns different error's than required | |
777 | * by NFSv4. both save_fh and current_fh have been verified.. */ | |
778 | if (status == nfserr_isdir) | |
779 | status = nfserr_exist; | |
780 | else if ((status == nfserr_notdir) && | |
ca364317 BF |
781 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
782 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) | |
1da177e4 | 783 | status = nfserr_exist; |
1da177e4 LT |
784 | |
785 | if (!status) { | |
ca364317 BF |
786 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
787 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
1da177e4 LT |
788 | } |
789 | return status; | |
790 | } | |
791 | ||
dcb488a3 AA |
792 | static __be32 |
793 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
794 | struct nfsd4_secinfo *secinfo) | |
795 | { | |
796 | struct svc_fh resfh; | |
797 | struct svc_export *exp; | |
798 | struct dentry *dentry; | |
799 | __be32 err; | |
800 | ||
801 | fh_init(&resfh, NFS4_FHSIZE); | |
29a78a3e BF |
802 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
803 | if (err) | |
804 | return err; | |
dcb488a3 AA |
805 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
806 | secinfo->si_name, secinfo->si_namelen, | |
807 | &exp, &dentry); | |
808 | if (err) | |
809 | return err; | |
810 | if (dentry->d_inode == NULL) { | |
811 | exp_put(exp); | |
812 | err = nfserr_noent; | |
813 | } else | |
814 | secinfo->si_exp = exp; | |
815 | dput(dentry); | |
56560b9a BF |
816 | if (cstate->minorversion) |
817 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
818 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
819 | return err; |
820 | } | |
821 | ||
04f4ad16 BF |
822 | static __be32 |
823 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
824 | struct nfsd4_secinfo_no_name *sin) | |
825 | { | |
826 | __be32 err; | |
827 | ||
828 | switch (sin->sin_style) { | |
829 | case NFS4_SECINFO_STYLE4_CURRENT_FH: | |
830 | break; | |
831 | case NFS4_SECINFO_STYLE4_PARENT: | |
832 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
833 | if (err) | |
834 | return err; | |
835 | break; | |
836 | default: | |
837 | return nfserr_inval; | |
838 | } | |
839 | exp_get(cstate->current_fh.fh_export); | |
840 | sin->sin_exp = cstate->current_fh.fh_export; | |
841 | fh_put(&cstate->current_fh); | |
842 | return nfs_ok; | |
843 | } | |
844 | ||
7191155b | 845 | static __be32 |
ca364317 BF |
846 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
847 | struct nfsd4_setattr *setattr) | |
1da177e4 | 848 | { |
b37ad28b | 849 | __be32 status = nfs_ok; |
96f6f985 | 850 | int err; |
1da177e4 | 851 | |
1da177e4 LT |
852 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
853 | nfs4_lock_state(); | |
5ccb0066 | 854 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, |
6150ef0d | 855 | &setattr->sa_stateid, WR_STATE, NULL); |
1da177e4 | 856 | nfs4_unlock_state(); |
375c5547 | 857 | if (status) { |
3e3b4800 | 858 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
859 | return status; |
860 | } | |
1da177e4 | 861 | } |
96f6f985 AV |
862 | err = fh_want_write(&cstate->current_fh); |
863 | if (err) | |
864 | return nfserrno(err); | |
1da177e4 | 865 | status = nfs_ok; |
3c8e0316 YZ |
866 | |
867 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
868 | nfsd_attrmask); | |
869 | if (status) | |
870 | goto out; | |
871 | ||
1da177e4 | 872 | if (setattr->sa_acl != NULL) |
ca364317 BF |
873 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
874 | setattr->sa_acl); | |
1da177e4 | 875 | if (status) |
18f335af | 876 | goto out; |
ca364317 | 877 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 878 | 0, (time_t)0); |
18f335af | 879 | out: |
bad0dcff | 880 | fh_drop_write(&cstate->current_fh); |
1da177e4 LT |
881 | return status; |
882 | } | |
883 | ||
7191155b | 884 | static __be32 |
ca364317 BF |
885 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
886 | struct nfsd4_write *write) | |
1da177e4 LT |
887 | { |
888 | stateid_t *stateid = &write->wr_stateid; | |
889 | struct file *filp = NULL; | |
b37ad28b | 890 | __be32 status = nfs_ok; |
31dec253 | 891 | unsigned long cnt; |
1da177e4 LT |
892 | |
893 | /* no need to check permission - this will be done in nfsd_write() */ | |
894 | ||
895 | if (write->wr_offset >= OFFSET_MAX) | |
896 | return nfserr_inval; | |
897 | ||
898 | nfs4_lock_state(); | |
5ccb0066 SK |
899 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
900 | cstate, stateid, WR_STATE, &filp); | |
7e06b7f9 N |
901 | if (filp) |
902 | get_file(filp); | |
1da177e4 LT |
903 | nfs4_unlock_state(); |
904 | ||
375c5547 BF |
905 | if (status) { |
906 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); | |
907 | return status; | |
908 | } | |
909 | ||
31dec253 | 910 | cnt = write->wr_buflen; |
1da177e4 | 911 | write->wr_how_written = write->wr_stable_how; |
ab4684d1 | 912 | gen_boot_verifier(&write->wr_verifier); |
1da177e4 | 913 | |
ca364317 BF |
914 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
915 | write->wr_offset, rqstp->rq_vec, write->wr_vlen, | |
31dec253 | 916 | &cnt, &write->wr_how_written); |
7e06b7f9 N |
917 | if (filp) |
918 | fput(filp); | |
1da177e4 | 919 | |
31dec253 DS |
920 | write->wr_bytes_written = cnt; |
921 | ||
1da177e4 | 922 | return status; |
1da177e4 LT |
923 | } |
924 | ||
925 | /* This routine never returns NFS_OK! If there are no other errors, it | |
926 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
927 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
928 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
929 | */ | |
b37ad28b | 930 | static __be32 |
c954e2a5 | 931 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 932 | struct nfsd4_verify *verify) |
1da177e4 | 933 | { |
2ebbc012 | 934 | __be32 *buf, *p; |
1da177e4 | 935 | int count; |
b37ad28b | 936 | __be32 status; |
1da177e4 | 937 | |
8837abca | 938 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
939 | if (status) |
940 | return status; | |
941 | ||
3c8e0316 YZ |
942 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
943 | if (status) | |
944 | return status; | |
945 | ||
1da177e4 LT |
946 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
947 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
948 | return nfserr_inval; | |
949 | if (verify->ve_attrlen & 3) | |
950 | return nfserr_inval; | |
951 | ||
952 | /* count in words: | |
953 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
954 | */ | |
955 | count = 4 + (verify->ve_attrlen >> 2); | |
956 | buf = kmalloc(count << 2, GFP_KERNEL); | |
957 | if (!buf) | |
3e772463 | 958 | return nfserr_jukebox; |
1da177e4 | 959 | |
ca364317 BF |
960 | status = nfsd4_encode_fattr(&cstate->current_fh, |
961 | cstate->current_fh.fh_export, | |
962 | cstate->current_fh.fh_dentry, buf, | |
1da177e4 | 963 | &count, verify->ve_bmval, |
406a7ea9 | 964 | rqstp, 0); |
1da177e4 LT |
965 | |
966 | /* this means that nfsd4_encode_fattr() ran out of space */ | |
967 | if (status == nfserr_resource && count == 0) | |
968 | status = nfserr_not_same; | |
969 | if (status) | |
970 | goto out_kfree; | |
971 | ||
95ec28cd BH |
972 | /* skip bitmap */ |
973 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
974 | status = nfserr_not_same; |
975 | if (ntohl(*p++) != verify->ve_attrlen) | |
976 | goto out_kfree; | |
977 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
978 | status = nfserr_same; | |
979 | ||
980 | out_kfree: | |
981 | kfree(buf); | |
982 | return status; | |
983 | } | |
984 | ||
c954e2a5 BF |
985 | static __be32 |
986 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
987 | struct nfsd4_verify *verify) | |
988 | { | |
989 | __be32 status; | |
990 | ||
991 | status = _nfsd4_verify(rqstp, cstate, verify); | |
992 | return status == nfserr_not_same ? nfs_ok : status; | |
993 | } | |
994 | ||
995 | static __be32 | |
996 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
997 | struct nfsd4_verify *verify) | |
998 | { | |
999 | __be32 status; | |
1000 | ||
1001 | status = _nfsd4_verify(rqstp, cstate, verify); | |
1002 | return status == nfserr_same ? nfs_ok : status; | |
1003 | } | |
1004 | ||
1da177e4 LT |
1005 | /* |
1006 | * NULL call. | |
1007 | */ | |
7111c66e | 1008 | static __be32 |
1da177e4 LT |
1009 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
1010 | { | |
1011 | return nfs_ok; | |
1012 | } | |
1013 | ||
e2b20950 SA |
1014 | static inline void nfsd4_increment_op_stats(u32 opnum) |
1015 | { | |
1016 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
1017 | nfsdstats.nfs4_opcount[opnum]++; | |
1018 | } | |
1019 | ||
b591480b BF |
1020 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
1021 | void *); | |
58e7b33a | 1022 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
8b70484c TM |
1023 | typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *); |
1024 | typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *); | |
58e7b33a | 1025 | |
f9bb94c4 AA |
1026 | enum nfsd4_op_flags { |
1027 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ | |
5ece3caf MJ |
1028 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
1029 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ | |
68d93184 BF |
1030 | /* For rfc 5661 section 2.6.3.1.1: */ |
1031 | OP_HANDLES_WRONGSEC = 1 << 3, | |
1032 | OP_IS_PUTFH_LIKE = 1 << 4, | |
1091006c | 1033 | /* |
c856694e BF |
1034 | * These are the ops whose result size we estimate before |
1035 | * encoding, to avoid performing an op then not being able to | |
1036 | * respond or cache a response. This includes writes and setattrs | |
1037 | * as well as the operations usually called "nonidempotent": | |
1038 | */ | |
1039 | OP_MODIFIES_SOMETHING = 1 << 5, | |
1040 | /* | |
1041 | * Cache compounds containing these ops in the xid-based drc: | |
1091006c BF |
1042 | * We use the DRC for compounds containing non-idempotent |
1043 | * operations, *except* those that are 4.1-specific (since | |
1044 | * sessions provide their own EOS), and except for stateful | |
1045 | * operations other than setclientid and setclientid_confirm | |
1046 | * (since sequence numbers provide EOS for open, lock, etc in | |
1047 | * the v4.0 case). | |
1048 | */ | |
c856694e | 1049 | OP_CACHEME = 1 << 6, |
8b70484c TM |
1050 | /* |
1051 | * These are ops which clear current state id. | |
1052 | */ | |
1053 | OP_CLEAR_STATEID = 1 << 7, | |
c856694e BF |
1054 | }; |
1055 | ||
1056 | struct nfsd4_operation { | |
1057 | nfsd4op_func op_func; | |
1058 | u32 op_flags; | |
1059 | char *op_name; | |
58e7b33a MJ |
1060 | /* Try to get response size before operation */ |
1061 | nfsd4op_rsize op_rsize_bop; | |
24ff99c6 BS |
1062 | stateid_getter op_get_currentstateid; |
1063 | stateid_setter op_set_currentstateid; | |
b591480b BF |
1064 | }; |
1065 | ||
1066 | static struct nfsd4_operation nfsd4_ops[]; | |
1067 | ||
8f199b82 | 1068 | #ifdef NFSD_DEBUG |
f1c7f79b | 1069 | static const char *nfsd4_op_name(unsigned opnum); |
8f199b82 | 1070 | #endif |
b001a1b6 | 1071 | |
f9bb94c4 | 1072 | /* |
57716355 | 1073 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1074 | * |
57716355 BF |
1075 | * Also note, enforced elsewhere: |
1076 | * - SEQUENCE other than as first op results in | |
1077 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1078 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1079 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1080 | * - DESTROY_SESSION must be the final operation in a compound, if |
1081 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1082 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1083 | */ |
57716355 | 1084 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1085 | { |
57716355 BF |
1086 | struct nfsd4_op *op = &args->ops[0]; |
1087 | ||
1088 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1089 | if (args->minorversion == 0) | |
1090 | return nfs_ok; | |
1091 | /* This is weird, but OK, not our problem: */ | |
1092 | if (args->opcnt == 0) | |
1093 | return nfs_ok; | |
1094 | if (op->status == nfserr_op_illegal) | |
1095 | return nfs_ok; | |
1096 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1097 | return nfserr_op_not_in_session; | |
1098 | if (op->opnum == OP_SEQUENCE) | |
1099 | return nfs_ok; | |
1100 | if (args->opcnt != 1) | |
1101 | return nfserr_not_only_op; | |
1102 | return nfs_ok; | |
f9bb94c4 AA |
1103 | } |
1104 | ||
22b03214 BF |
1105 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
1106 | { | |
1107 | return &nfsd4_ops[op->opnum]; | |
1108 | } | |
1109 | ||
1091006c BF |
1110 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1111 | { | |
c856694e | 1112 | return OPDESC(op)->op_flags & OP_CACHEME; |
1091006c BF |
1113 | } |
1114 | ||
68d93184 BF |
1115 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1116 | { | |
1117 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1118 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1119 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1120 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
1121 | struct nfsd4_operation *thisd; | |
1122 | struct nfsd4_operation *nextd; | |
1123 | ||
1124 | thisd = OPDESC(this); | |
1125 | /* | |
1126 | * Most ops check wronsec on our own; only the putfh-like ops | |
1127 | * have special rules. | |
1128 | */ | |
1129 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1130 | return false; | |
1131 | /* | |
1132 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1133 | * put-filehandle operation if we're not going to use the | |
1134 | * result: | |
1135 | */ | |
1136 | if (argp->opcnt == resp->opcnt) | |
1137 | return false; | |
1138 | ||
1139 | nextd = OPDESC(next); | |
1140 | /* | |
1141 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1142 | * errors themselves as necessary; others should check for them | |
1143 | * now: | |
1144 | */ | |
1145 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1146 | } | |
1147 | ||
1da177e4 LT |
1148 | /* |
1149 | * COMPOUND call. | |
1150 | */ | |
7111c66e | 1151 | static __be32 |
1da177e4 LT |
1152 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
1153 | struct nfsd4_compoundargs *args, | |
1154 | struct nfsd4_compoundres *resp) | |
1155 | { | |
1156 | struct nfsd4_op *op; | |
b591480b | 1157 | struct nfsd4_operation *opdesc; |
e354d571 | 1158 | struct nfsd4_compound_state *cstate = &resp->cstate; |
e5710199 | 1159 | int slack_bytes; |
58e7b33a | 1160 | u32 plen = 0; |
b37ad28b | 1161 | __be32 status; |
1da177e4 | 1162 | |
1da177e4 | 1163 | resp->xbuf = &rqstp->rq_res; |
e354d571 AA |
1164 | resp->p = rqstp->rq_res.head[0].iov_base + |
1165 | rqstp->rq_res.head[0].iov_len; | |
1da177e4 LT |
1166 | resp->tagp = resp->p; |
1167 | /* reserve space for: taglen, tag, and opcnt */ | |
1168 | resp->p += 2 + XDR_QUADLEN(args->taglen); | |
1169 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; | |
1170 | resp->taglen = args->taglen; | |
1171 | resp->tag = args->tag; | |
1172 | resp->opcnt = 0; | |
1173 | resp->rqstp = rqstp; | |
d87a8ade | 1174 | resp->cstate.minorversion = args->minorversion; |
e354d571 | 1175 | resp->cstate.replay_owner = NULL; |
26c0c75e | 1176 | resp->cstate.session = NULL; |
e354d571 AA |
1177 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
1178 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1179 | /* |
1180 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1181 | * too hard to avoid non-idempotency problems. | |
1182 | */ | |
1183 | rqstp->rq_usedeferral = 0; | |
1da177e4 LT |
1184 | |
1185 | /* | |
1186 | * According to RFC3010, this takes precedence over all other errors. | |
1187 | */ | |
1188 | status = nfserr_minor_vers_mismatch; | |
8daf220a | 1189 | if (args->minorversion > nfsd_supported_minorversion) |
1da177e4 LT |
1190 | goto out; |
1191 | ||
57716355 BF |
1192 | status = nfs41_check_op_ordering(args); |
1193 | if (status) { | |
f9bb94c4 | 1194 | op = &args->ops[0]; |
57716355 | 1195 | op->status = status; |
f9bb94c4 AA |
1196 | goto encode_op; |
1197 | } | |
1198 | ||
1da177e4 LT |
1199 | while (!status && resp->opcnt < args->opcnt) { |
1200 | op = &args->ops[resp->opcnt++]; | |
1201 | ||
b001a1b6 BH |
1202 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
1203 | resp->opcnt, args->opcnt, op->opnum, | |
1204 | nfsd4_op_name(op->opnum)); | |
1da177e4 LT |
1205 | /* |
1206 | * The XDR decode routines may have pre-set op->status; | |
1207 | * for example, if there is a miscellaneous XDR error | |
1208 | * it will be set to nfserr_bad_xdr. | |
1209 | */ | |
1210 | if (op->status) | |
1211 | goto encode_op; | |
1212 | ||
1213 | /* We must be able to encode a successful response to | |
1214 | * this operation, with enough room left over to encode a | |
1215 | * failed response to the next operation. If we don't | |
1216 | * have enough room, fail with ERR_RESOURCE. | |
1217 | */ | |
e5710199 BF |
1218 | slack_bytes = (char *)resp->end - (char *)resp->p; |
1219 | if (slack_bytes < COMPOUND_SLACK_SPACE | |
1220 | + COMPOUND_ERR_SLACK_SPACE) { | |
1221 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); | |
1da177e4 LT |
1222 | op->status = nfserr_resource; |
1223 | goto encode_op; | |
1224 | } | |
1225 | ||
22b03214 | 1226 | opdesc = OPDESC(op); |
b591480b | 1227 | |
ca364317 | 1228 | if (!cstate->current_fh.fh_dentry) { |
27d630ec | 1229 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1230 | op->status = nfserr_nofilehandle; |
1231 | goto encode_op; | |
1232 | } | |
eeac294e BF |
1233 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
1234 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { | |
42ca0993 | 1235 | op->status = nfserr_moved; |
1da177e4 LT |
1236 | goto encode_op; |
1237 | } | |
b591480b | 1238 | |
58e7b33a MJ |
1239 | /* If op is non-idempotent */ |
1240 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { | |
1241 | plen = opdesc->op_rsize_bop(rqstp, op); | |
1242 | op->status = nfsd4_check_resp_size(resp, plen); | |
1243 | } | |
1244 | ||
1245 | if (op->status) | |
1246 | goto encode_op; | |
1247 | ||
8b70484c TM |
1248 | if (opdesc->op_func) { |
1249 | if (opdesc->op_get_currentstateid) | |
1250 | opdesc->op_get_currentstateid(cstate, &op->u); | |
b591480b | 1251 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
8b70484c | 1252 | } else |
1da177e4 | 1253 | BUG_ON(op->status == nfs_ok); |
1da177e4 | 1254 | |
8b70484c TM |
1255 | if (!op->status) { |
1256 | if (opdesc->op_set_currentstateid) | |
1257 | opdesc->op_set_currentstateid(cstate, &op->u); | |
1258 | ||
1259 | if (opdesc->op_flags & OP_CLEAR_STATEID) | |
37c593c5 | 1260 | clear_current_stateid(cstate); |
8b70484c TM |
1261 | |
1262 | if (need_wrongsec_check(rqstp)) | |
1263 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); | |
1264 | } | |
68d93184 | 1265 | |
1da177e4 | 1266 | encode_op: |
49557cc7 | 1267 | /* Only from SEQUENCE */ |
da3846a2 AA |
1268 | if (resp->cstate.status == nfserr_replay_cache) { |
1269 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
abfabf8c | 1270 | status = op->status; |
da3846a2 AA |
1271 | goto out; |
1272 | } | |
a90b061c | 1273 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1274 | op->replay = &cstate->replay_owner->so_replay; |
1da177e4 LT |
1275 | nfsd4_encode_replay(resp, op); |
1276 | status = op->status = op->replay->rp_status; | |
1277 | } else { | |
1278 | nfsd4_encode_operation(resp, op); | |
1279 | status = op->status; | |
1280 | } | |
0407717d BH |
1281 | |
1282 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", | |
1283 | args->ops, args->opcnt, resp->opcnt, op->opnum, | |
1284 | be32_to_cpu(status)); | |
1285 | ||
a4f1706a | 1286 | if (cstate->replay_owner) { |
5ec094c1 | 1287 | nfs4_unlock_state(); |
a4f1706a | 1288 | cstate->replay_owner = NULL; |
1da177e4 | 1289 | } |
7e06b7f9 N |
1290 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
1291 | if (op->opnum == OP_READ && op->u.read.rd_filp) | |
1292 | fput(op->u.read.rd_filp); | |
e2b20950 SA |
1293 | |
1294 | nfsd4_increment_op_stats(op->opnum); | |
1da177e4 LT |
1295 | } |
1296 | ||
da3846a2 | 1297 | resp->cstate.status = status; |
e354d571 AA |
1298 | fh_put(&resp->cstate.current_fh); |
1299 | fh_put(&resp->cstate.save_fh); | |
1300 | BUG_ON(resp->cstate.replay_owner); | |
1da177e4 | 1301 | out: |
2f425878 AA |
1302 | /* Reset deferral mechanism for RPC deferrals */ |
1303 | rqstp->rq_usedeferral = 1; | |
3b12cd98 | 1304 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1305 | return status; |
1306 | } | |
1307 | ||
58e7b33a MJ |
1308 | #define op_encode_hdr_size (2) |
1309 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
1310 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1311 | #define op_encode_change_info_maxsz (5) | |
1312 | #define nfs4_fattr_bitmap_maxsz (4) | |
1313 | ||
1314 | #define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1315 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) | |
1316 | ||
1317 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1318 | ||
1319 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) | |
1320 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ | |
1321 | op_encode_ace_maxsz) | |
1322 | ||
1323 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) | |
1324 | ||
1325 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1326 | { | |
1327 | return (op_encode_hdr_size) * sizeof(__be32); | |
1328 | } | |
1329 | ||
1330 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1331 | { | |
1332 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); | |
1333 | } | |
1334 | ||
1335 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1336 | { | |
1337 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1338 | } | |
1339 | ||
1340 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1341 | { | |
1342 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1343 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1344 | } | |
1345 | ||
1346 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1347 | { | |
1348 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1349 | * sizeof(__be32); | |
1350 | } | |
1351 | ||
1352 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1353 | { | |
1354 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) | |
1355 | * sizeof(__be32); | |
1356 | } | |
1357 | ||
1358 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1359 | { | |
1360 | return (op_encode_hdr_size + op_encode_stateid_maxsz | |
1361 | + op_encode_change_info_maxsz + 1 | |
1362 | + nfs4_fattr_bitmap_maxsz | |
1363 | + op_encode_delegation_maxsz) * sizeof(__be32); | |
1364 | } | |
1365 | ||
1366 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1367 | { | |
1368 | u32 maxcount = 0, rlen = 0; | |
1369 | ||
1370 | maxcount = svc_max_payload(rqstp); | |
1371 | rlen = op->u.read.rd_length; | |
1372 | ||
1373 | if (rlen > maxcount) | |
1374 | rlen = maxcount; | |
1375 | ||
1376 | return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen; | |
1377 | } | |
1378 | ||
1379 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1380 | { | |
1381 | u32 rlen = op->u.readdir.rd_maxcount; | |
1382 | ||
1383 | if (rlen > PAGE_SIZE) | |
1384 | rlen = PAGE_SIZE; | |
1385 | ||
1386 | return (op_encode_hdr_size + op_encode_verifier_maxsz) | |
1387 | * sizeof(__be32) + rlen; | |
1388 | } | |
1389 | ||
1390 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1391 | { | |
1392 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1393 | * sizeof(__be32); | |
1394 | } | |
1395 | ||
1396 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1397 | { | |
1398 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1399 | + op_encode_change_info_maxsz) * sizeof(__be32); | |
1400 | } | |
1401 | ||
1402 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1403 | { | |
1404 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1405 | } | |
1406 | ||
1407 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1408 | { | |
1409 | return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32); | |
1410 | } | |
1411 | ||
1412 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1413 | { | |
1414 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1415 | } | |
1416 | ||
1417 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1418 | { | |
1419 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ | |
1420 | 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\ | |
1421 | 2 + /*eir_server_owner.so_minor_id */\ | |
1422 | /* eir_server_owner.so_major_id<> */\ | |
1423 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1424 | /* eir_server_scope<> */\ | |
1425 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1426 | 1 + /* eir_server_impl_id array length */\ | |
1427 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); | |
1428 | } | |
1429 | ||
1430 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1431 | { | |
1432 | return (op_encode_hdr_size + \ | |
1433 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ | |
1434 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); | |
1435 | } | |
1436 | ||
1437 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1438 | { | |
1439 | return (op_encode_hdr_size + \ | |
1440 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ | |
1441 | 2 + /* csr_sequence, csr_flags */\ | |
1442 | op_encode_channel_attrs_maxsz + \ | |
1443 | op_encode_channel_attrs_maxsz) * sizeof(__be32); | |
1444 | } | |
1445 | ||
20766016 | 1446 | static struct nfsd4_operation nfsd4_ops[] = { |
b591480b BF |
1447 | [OP_ACCESS] = { |
1448 | .op_func = (nfsd4op_func)nfsd4_access, | |
b001a1b6 | 1449 | .op_name = "OP_ACCESS", |
b591480b BF |
1450 | }, |
1451 | [OP_CLOSE] = { | |
1452 | .op_func = (nfsd4op_func)nfsd4_close, | |
58e7b33a | 1453 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1454 | .op_name = "OP_CLOSE", |
58e7b33a | 1455 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
8b70484c TM |
1456 | .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid, |
1457 | .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid, | |
b591480b BF |
1458 | }, |
1459 | [OP_COMMIT] = { | |
1460 | .op_func = (nfsd4op_func)nfsd4_commit, | |
58e7b33a | 1461 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1462 | .op_name = "OP_COMMIT", |
58e7b33a | 1463 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
b591480b BF |
1464 | }, |
1465 | [OP_CREATE] = { | |
1466 | .op_func = (nfsd4op_func)nfsd4_create, | |
d1471053 | 1467 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
b001a1b6 | 1468 | .op_name = "OP_CREATE", |
58e7b33a | 1469 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
b591480b BF |
1470 | }, |
1471 | [OP_DELEGRETURN] = { | |
1472 | .op_func = (nfsd4op_func)nfsd4_delegreturn, | |
58e7b33a | 1473 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1474 | .op_name = "OP_DELEGRETURN", |
58e7b33a | 1475 | .op_rsize_bop = nfsd4_only_status_rsize, |
9428fe1a | 1476 | .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid, |
b591480b BF |
1477 | }, |
1478 | [OP_GETATTR] = { | |
1479 | .op_func = (nfsd4op_func)nfsd4_getattr, | |
eeac294e | 1480 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1481 | .op_name = "OP_GETATTR", |
b591480b BF |
1482 | }, |
1483 | [OP_GETFH] = { | |
1484 | .op_func = (nfsd4op_func)nfsd4_getfh, | |
b001a1b6 | 1485 | .op_name = "OP_GETFH", |
b591480b BF |
1486 | }, |
1487 | [OP_LINK] = { | |
1488 | .op_func = (nfsd4op_func)nfsd4_link, | |
c856694e BF |
1489 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
1490 | | OP_CACHEME, | |
b001a1b6 | 1491 | .op_name = "OP_LINK", |
58e7b33a | 1492 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
b591480b BF |
1493 | }, |
1494 | [OP_LOCK] = { | |
1495 | .op_func = (nfsd4op_func)nfsd4_lock, | |
58e7b33a | 1496 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1497 | .op_name = "OP_LOCK", |
58e7b33a | 1498 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
62cd4a59 | 1499 | .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid, |
b591480b BF |
1500 | }, |
1501 | [OP_LOCKT] = { | |
1502 | .op_func = (nfsd4op_func)nfsd4_lockt, | |
b001a1b6 | 1503 | .op_name = "OP_LOCKT", |
b591480b BF |
1504 | }, |
1505 | [OP_LOCKU] = { | |
1506 | .op_func = (nfsd4op_func)nfsd4_locku, | |
58e7b33a | 1507 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1508 | .op_name = "OP_LOCKU", |
58e7b33a | 1509 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
62cd4a59 | 1510 | .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid, |
b591480b BF |
1511 | }, |
1512 | [OP_LOOKUP] = { | |
1513 | .op_func = (nfsd4op_func)nfsd4_lookup, | |
d1471053 | 1514 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1515 | .op_name = "OP_LOOKUP", |
b591480b BF |
1516 | }, |
1517 | [OP_LOOKUPP] = { | |
1518 | .op_func = (nfsd4op_func)nfsd4_lookupp, | |
d1471053 | 1519 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1520 | .op_name = "OP_LOOKUPP", |
b591480b BF |
1521 | }, |
1522 | [OP_NVERIFY] = { | |
1523 | .op_func = (nfsd4op_func)nfsd4_nverify, | |
b001a1b6 | 1524 | .op_name = "OP_NVERIFY", |
b591480b BF |
1525 | }, |
1526 | [OP_OPEN] = { | |
1527 | .op_func = (nfsd4op_func)nfsd4_open, | |
58e7b33a | 1528 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1529 | .op_name = "OP_OPEN", |
58e7b33a | 1530 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
8b70484c | 1531 | .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid, |
b591480b BF |
1532 | }, |
1533 | [OP_OPEN_CONFIRM] = { | |
1534 | .op_func = (nfsd4op_func)nfsd4_open_confirm, | |
58e7b33a | 1535 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1536 | .op_name = "OP_OPEN_CONFIRM", |
58e7b33a | 1537 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1538 | }, |
1539 | [OP_OPEN_DOWNGRADE] = { | |
1540 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, | |
58e7b33a | 1541 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1542 | .op_name = "OP_OPEN_DOWNGRADE", |
58e7b33a | 1543 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
9428fe1a TM |
1544 | .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid, |
1545 | .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid, | |
b591480b BF |
1546 | }, |
1547 | [OP_PUTFH] = { | |
1548 | .op_func = (nfsd4op_func)nfsd4_putfh, | |
68d93184 | 1549 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1550 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1551 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1552 | .op_name = "OP_PUTFH", |
58e7b33a | 1553 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1554 | }, |
eeac294e | 1555 | [OP_PUTPUBFH] = { |
a1c8c4d1 | 1556 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
68d93184 | 1557 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1558 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1559 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1560 | .op_name = "OP_PUTPUBFH", |
58e7b33a | 1561 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
eeac294e | 1562 | }, |
b591480b BF |
1563 | [OP_PUTROOTFH] = { |
1564 | .op_func = (nfsd4op_func)nfsd4_putrootfh, | |
68d93184 | 1565 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1566 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1567 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1568 | .op_name = "OP_PUTROOTFH", |
58e7b33a | 1569 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1570 | }, |
1571 | [OP_READ] = { | |
1572 | .op_func = (nfsd4op_func)nfsd4_read, | |
58e7b33a | 1573 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1574 | .op_name = "OP_READ", |
58e7b33a | 1575 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
30813e27 | 1576 | .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid, |
b591480b BF |
1577 | }, |
1578 | [OP_READDIR] = { | |
1579 | .op_func = (nfsd4op_func)nfsd4_readdir, | |
58e7b33a | 1580 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1581 | .op_name = "OP_READDIR", |
58e7b33a | 1582 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
b591480b BF |
1583 | }, |
1584 | [OP_READLINK] = { | |
1585 | .op_func = (nfsd4op_func)nfsd4_readlink, | |
b001a1b6 | 1586 | .op_name = "OP_READLINK", |
b591480b BF |
1587 | }, |
1588 | [OP_REMOVE] = { | |
1589 | .op_func = (nfsd4op_func)nfsd4_remove, | |
c856694e | 1590 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1591 | .op_name = "OP_REMOVE", |
58e7b33a | 1592 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
b591480b BF |
1593 | }, |
1594 | [OP_RENAME] = { | |
1595 | .op_func = (nfsd4op_func)nfsd4_rename, | |
c856694e | 1596 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1597 | .op_name = "OP_RENAME", |
58e7b33a | 1598 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
b591480b BF |
1599 | }, |
1600 | [OP_RENEW] = { | |
1601 | .op_func = (nfsd4op_func)nfsd4_renew, | |
58e7b33a MJ |
1602 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1603 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1604 | .op_name = "OP_RENEW", |
58e7b33a MJ |
1605 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
1606 | ||
b591480b BF |
1607 | }, |
1608 | [OP_RESTOREFH] = { | |
1609 | .op_func = (nfsd4op_func)nfsd4_restorefh, | |
68d93184 | 1610 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1611 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1612 | .op_name = "OP_RESTOREFH", |
58e7b33a | 1613 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1614 | }, |
1615 | [OP_SAVEFH] = { | |
1616 | .op_func = (nfsd4op_func)nfsd4_savefh, | |
58e7b33a | 1617 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1618 | .op_name = "OP_SAVEFH", |
58e7b33a | 1619 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1620 | }, |
dcb488a3 AA |
1621 | [OP_SECINFO] = { |
1622 | .op_func = (nfsd4op_func)nfsd4_secinfo, | |
68d93184 | 1623 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1624 | .op_name = "OP_SECINFO", |
dcb488a3 | 1625 | }, |
b591480b BF |
1626 | [OP_SETATTR] = { |
1627 | .op_func = (nfsd4op_func)nfsd4_setattr, | |
b001a1b6 | 1628 | .op_name = "OP_SETATTR", |
c856694e | 1629 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1630 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
1e97b519 | 1631 | .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid, |
b591480b BF |
1632 | }, |
1633 | [OP_SETCLIENTID] = { | |
1634 | .op_func = (nfsd4op_func)nfsd4_setclientid, | |
58e7b33a | 1635 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1636 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1637 | .op_name = "OP_SETCLIENTID", |
58e7b33a | 1638 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
b591480b BF |
1639 | }, |
1640 | [OP_SETCLIENTID_CONFIRM] = { | |
1641 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, | |
58e7b33a | 1642 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1643 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1644 | .op_name = "OP_SETCLIENTID_CONFIRM", |
58e7b33a | 1645 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1646 | }, |
1647 | [OP_VERIFY] = { | |
1648 | .op_func = (nfsd4op_func)nfsd4_verify, | |
b001a1b6 | 1649 | .op_name = "OP_VERIFY", |
b591480b BF |
1650 | }, |
1651 | [OP_WRITE] = { | |
1652 | .op_func = (nfsd4op_func)nfsd4_write, | |
c856694e | 1653 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1654 | .op_name = "OP_WRITE", |
58e7b33a | 1655 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
30813e27 | 1656 | .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid, |
b591480b BF |
1657 | }, |
1658 | [OP_RELEASE_LOCKOWNER] = { | |
1659 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, | |
58e7b33a MJ |
1660 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1661 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1662 | .op_name = "OP_RELEASE_LOCKOWNER", |
58e7b33a | 1663 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1664 | }, |
069b6ad4 AA |
1665 | |
1666 | /* NFSv4.1 operations */ | |
1667 | [OP_EXCHANGE_ID] = { | |
1668 | .op_func = (nfsd4op_func)nfsd4_exchange_id, | |
58e7b33a MJ |
1669 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1670 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1671 | .op_name = "OP_EXCHANGE_ID", |
58e7b33a | 1672 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
069b6ad4 | 1673 | }, |
cb73a9f4 BF |
1674 | [OP_BACKCHANNEL_CTL] = { |
1675 | .op_func = (nfsd4op_func)nfsd4_backchannel_ctl, | |
1676 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, | |
1677 | .op_name = "OP_BACKCHANNEL_CTL", | |
1678 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, | |
1679 | }, | |
1d1bc8f2 BF |
1680 | [OP_BIND_CONN_TO_SESSION] = { |
1681 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, | |
58e7b33a MJ |
1682 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1683 | | OP_MODIFIES_SOMETHING, | |
1d1bc8f2 | 1684 | .op_name = "OP_BIND_CONN_TO_SESSION", |
58e7b33a | 1685 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
1d1bc8f2 | 1686 | }, |
069b6ad4 AA |
1687 | [OP_CREATE_SESSION] = { |
1688 | .op_func = (nfsd4op_func)nfsd4_create_session, | |
58e7b33a MJ |
1689 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1690 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1691 | .op_name = "OP_CREATE_SESSION", |
58e7b33a | 1692 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
069b6ad4 AA |
1693 | }, |
1694 | [OP_DESTROY_SESSION] = { | |
1695 | .op_func = (nfsd4op_func)nfsd4_destroy_session, | |
58e7b33a MJ |
1696 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1697 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1698 | .op_name = "OP_DESTROY_SESSION", |
58e7b33a | 1699 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
069b6ad4 AA |
1700 | }, |
1701 | [OP_SEQUENCE] = { | |
1702 | .op_func = (nfsd4op_func)nfsd4_sequence, | |
f9bb94c4 | 1703 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1704 | .op_name = "OP_SEQUENCE", |
1705 | }, | |
094b5d74 | 1706 | [OP_DESTROY_CLIENTID] = { |
345c2842 | 1707 | .op_func = (nfsd4op_func)nfsd4_destroy_clientid, |
58e7b33a MJ |
1708 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1709 | | OP_MODIFIES_SOMETHING, | |
094b5d74 | 1710 | .op_name = "OP_DESTROY_CLIENTID", |
58e7b33a | 1711 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
094b5d74 | 1712 | }, |
4dc6ec00 BF |
1713 | [OP_RECLAIM_COMPLETE] = { |
1714 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, | |
58e7b33a | 1715 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
4dc6ec00 | 1716 | .op_name = "OP_RECLAIM_COMPLETE", |
58e7b33a | 1717 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
4dc6ec00 | 1718 | }, |
04f4ad16 BF |
1719 | [OP_SECINFO_NO_NAME] = { |
1720 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, | |
68d93184 | 1721 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 BF |
1722 | .op_name = "OP_SECINFO_NO_NAME", |
1723 | }, | |
17456804 BS |
1724 | [OP_TEST_STATEID] = { |
1725 | .op_func = (nfsd4op_func)nfsd4_test_stateid, | |
1726 | .op_flags = ALLOWED_WITHOUT_FH, | |
1727 | .op_name = "OP_TEST_STATEID", | |
1728 | }, | |
e1ca12df BS |
1729 | [OP_FREE_STATEID] = { |
1730 | .op_func = (nfsd4op_func)nfsd4_free_stateid, | |
58e7b33a | 1731 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
e1ca12df | 1732 | .op_name = "OP_FREE_STATEID", |
58e7b33a | 1733 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
e1ca12df | 1734 | }, |
b591480b BF |
1735 | }; |
1736 | ||
8f199b82 | 1737 | #ifdef NFSD_DEBUG |
f1c7f79b | 1738 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
1739 | { |
1740 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
1741 | return nfsd4_ops[opnum].op_name; | |
1742 | return "unknown_operation"; | |
1743 | } | |
8f199b82 | 1744 | #endif |
b001a1b6 | 1745 | |
1da177e4 | 1746 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
1747 | struct nfsd4_voidargs { int dummy; }; |
1748 | ||
1da177e4 | 1749 | static struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f YZ |
1750 | [NFSPROC4_NULL] = { |
1751 | .pc_func = (svc_procfunc) nfsd4_proc_null, | |
1752 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, | |
1753 | .pc_argsize = sizeof(struct nfsd4_voidargs), | |
1754 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
1755 | .pc_cachetype = RC_NOCACHE, | |
1756 | .pc_xdrressize = 1, | |
1757 | }, | |
1758 | [NFSPROC4_COMPOUND] = { | |
1759 | .pc_func = (svc_procfunc) nfsd4_proc_compound, | |
1760 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, | |
1761 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, | |
1762 | .pc_argsize = sizeof(struct nfsd4_compoundargs), | |
1763 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 1764 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
1765 | .pc_cachetype = RC_NOCACHE, |
1766 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
1767 | }, | |
1da177e4 LT |
1768 | }; |
1769 | ||
1770 | struct svc_version nfsd_version4 = { | |
1771 | .vs_vers = 4, | |
1772 | .vs_nproc = 2, | |
1773 | .vs_proc = nfsd_procedures4, | |
1774 | .vs_dispatch = nfsd_dispatch, | |
1775 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
1776 | }; | |
1777 | ||
1778 | /* | |
1779 | * Local variables: | |
1780 | * c-basic-offset: 8 | |
1781 | * End: | |
1782 | */ |