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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * fs/nfsd/nfs4proc.c | |
3 | * | |
4 | * Server-side procedures for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or without | |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. Neither the name of the University nor the names of its | |
22 | * contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
1da177e4 LT |
36 | */ |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/major.h> | |
40 | #include <linux/slab.h> | |
7e06b7f9 | 41 | #include <linux/file.h> |
1da177e4 LT |
42 | |
43 | #include <linux/sunrpc/svc.h> | |
44 | #include <linux/nfsd/nfsd.h> | |
45 | #include <linux/nfsd/cache.h> | |
46 | #include <linux/nfs4.h> | |
47 | #include <linux/nfsd/state.h> | |
48 | #include <linux/nfsd/xdr4.h> | |
49 | #include <linux/nfs4_acl.h> | |
50 | ||
51 | #define NFSDDBG_FACILITY NFSDDBG_PROC | |
52 | ||
53 | static inline void | |
54 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) | |
55 | { | |
56 | fh_put(dst); | |
57 | dget(src->fh_dentry); | |
58 | if (src->fh_export) | |
59 | cache_get(&src->fh_export->h); | |
60 | *dst = *src; | |
61 | } | |
62 | ||
b37ad28b | 63 | static __be32 |
dc730e17 | 64 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
1da177e4 | 65 | { |
b37ad28b | 66 | __be32 status; |
1da177e4 LT |
67 | |
68 | if (open->op_truncate && | |
69 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) | |
70 | return nfserr_inval; | |
71 | ||
1da177e4 | 72 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
dc730e17 | 73 | accmode |= MAY_READ; |
9801d8a3 | 74 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
1da177e4 | 75 | accmode |= (MAY_WRITE | MAY_TRUNC); |
9801d8a3 BF |
76 | if (open->op_share_deny & NFS4_SHARE_DENY_WRITE) |
77 | accmode |= MAY_WRITE; | |
1da177e4 LT |
78 | |
79 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); | |
80 | ||
81 | return status; | |
82 | } | |
83 | ||
b37ad28b | 84 | static __be32 |
1da177e4 LT |
85 | do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
86 | { | |
87 | struct svc_fh resfh; | |
b37ad28b | 88 | __be32 status; |
81ac95c5 | 89 | int created = 0; |
1da177e4 LT |
90 | |
91 | fh_init(&resfh, NFS4_FHSIZE); | |
92 | open->op_truncate = 0; | |
93 | ||
94 | if (open->op_create) { | |
95 | /* | |
96 | * Note: create modes (UNCHECKED,GUARDED...) are the same | |
97 | * in NFSv4 as in v3. | |
98 | */ | |
99 | status = nfsd_create_v3(rqstp, current_fh, open->op_fname.data, | |
100 | open->op_fname.len, &open->op_iattr, | |
101 | &resfh, open->op_createmode, | |
81ac95c5 | 102 | (u32 *)open->op_verf.data, &open->op_truncate, &created); |
af85852d | 103 | } else { |
1da177e4 LT |
104 | status = nfsd_lookup(rqstp, current_fh, |
105 | open->op_fname.data, open->op_fname.len, &resfh); | |
106 | fh_unlock(current_fh); | |
107 | } | |
af85852d BF |
108 | if (status) |
109 | goto out; | |
1da177e4 | 110 | |
af85852d | 111 | set_change_info(&open->op_cinfo, current_fh); |
1da177e4 | 112 | |
af85852d BF |
113 | /* set reply cache */ |
114 | fh_dup2(current_fh, &resfh); | |
115 | open->op_stateowner->so_replay.rp_openfh_len = resfh.fh_handle.fh_size; | |
116 | memcpy(open->op_stateowner->so_replay.rp_openfh, | |
117 | &resfh.fh_handle.fh_base, resfh.fh_handle.fh_size); | |
1da177e4 | 118 | |
81ac95c5 BF |
119 | if (!created) |
120 | status = do_open_permission(rqstp, current_fh, open, MAY_NOP); | |
1da177e4 | 121 | |
af85852d | 122 | out: |
1da177e4 LT |
123 | fh_put(&resfh); |
124 | return status; | |
125 | } | |
126 | ||
b37ad28b | 127 | static __be32 |
1da177e4 LT |
128 | do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
129 | { | |
b37ad28b | 130 | __be32 status; |
1da177e4 LT |
131 | |
132 | /* Only reclaims from previously confirmed clients are valid */ | |
133 | if ((status = nfs4_check_open_reclaim(&open->op_clientid))) | |
134 | return status; | |
135 | ||
136 | /* We don't know the target directory, and therefore can not | |
137 | * set the change info | |
138 | */ | |
139 | ||
140 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
141 | ||
142 | /* set replay cache */ | |
143 | open->op_stateowner->so_replay.rp_openfh_len = current_fh->fh_handle.fh_size; | |
144 | memcpy(open->op_stateowner->so_replay.rp_openfh, | |
145 | ¤t_fh->fh_handle.fh_base, | |
146 | current_fh->fh_handle.fh_size); | |
147 | ||
148 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
149 | (open->op_iattr.ia_size == 0); | |
150 | ||
dc730e17 | 151 | status = do_open_permission(rqstp, current_fh, open, MAY_OWNER_OVERRIDE); |
1da177e4 LT |
152 | |
153 | return status; | |
154 | } | |
155 | ||
156 | ||
7191155b | 157 | static __be32 |
ca364317 | 158 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
a4f1706a | 159 | struct nfsd4_open *open) |
1da177e4 | 160 | { |
b37ad28b | 161 | __be32 status; |
1da177e4 LT |
162 | dprintk("NFSD: nfsd4_open filename %.*s op_stateowner %p\n", |
163 | (int)open->op_fname.len, open->op_fname.data, | |
164 | open->op_stateowner); | |
165 | ||
1da177e4 LT |
166 | /* This check required by spec. */ |
167 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
168 | return nfserr_inval; | |
169 | ||
170 | nfs4_lock_state(); | |
171 | ||
172 | /* check seqid for replay. set nfs4_owner */ | |
173 | status = nfsd4_process_open1(open); | |
a90b061c | 174 | if (status == nfserr_replay_me) { |
1da177e4 | 175 | struct nfs4_replay *rp = &open->op_stateowner->so_replay; |
ca364317 BF |
176 | fh_put(&cstate->current_fh); |
177 | cstate->current_fh.fh_handle.fh_size = rp->rp_openfh_len; | |
178 | memcpy(&cstate->current_fh.fh_handle.fh_base, rp->rp_openfh, | |
1da177e4 | 179 | rp->rp_openfh_len); |
ca364317 | 180 | status = fh_verify(rqstp, &cstate->current_fh, 0, MAY_NOP); |
1da177e4 LT |
181 | if (status) |
182 | dprintk("nfsd4_open: replay failed" | |
183 | " restoring previous filehandle\n"); | |
184 | else | |
a90b061c | 185 | status = nfserr_replay_me; |
1da177e4 LT |
186 | } |
187 | if (status) | |
188 | goto out; | |
fb553c0f BF |
189 | |
190 | /* Openowner is now set, so sequence id will get bumped. Now we need | |
191 | * these checks before we do any creates: */ | |
cbd0d51a | 192 | status = nfserr_grace; |
fb553c0f | 193 | if (nfs4_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
194 | goto out; |
195 | status = nfserr_no_grace; | |
fb553c0f | 196 | if (!nfs4_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 197 | goto out; |
fb553c0f | 198 | |
1da177e4 | 199 | switch (open->op_claim_type) { |
0dd3c192 N |
200 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
201 | status = nfserr_inval; | |
202 | if (open->op_create) | |
203 | goto out; | |
204 | /* fall through */ | |
1da177e4 LT |
205 | case NFS4_OPEN_CLAIM_NULL: |
206 | /* | |
207 | * (1) set CURRENT_FH to the file being opened, | |
208 | * creating it if necessary, (2) set open->op_cinfo, | |
209 | * (3) set open->op_truncate if the file is to be | |
210 | * truncated after opening, (4) do permission checking. | |
211 | */ | |
ca364317 BF |
212 | status = do_open_lookup(rqstp, &cstate->current_fh, |
213 | open); | |
1da177e4 LT |
214 | if (status) |
215 | goto out; | |
216 | break; | |
217 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
a525825d | 218 | open->op_stateowner->so_confirmed = 1; |
1da177e4 LT |
219 | /* |
220 | * The CURRENT_FH is already set to the file being | |
221 | * opened. (1) set open->op_cinfo, (2) set | |
222 | * open->op_truncate if the file is to be truncated | |
223 | * after opening, (3) do permission checking. | |
224 | */ | |
ca364317 BF |
225 | status = do_open_fhandle(rqstp, &cstate->current_fh, |
226 | open); | |
1da177e4 LT |
227 | if (status) |
228 | goto out; | |
229 | break; | |
1da177e4 | 230 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
a525825d | 231 | open->op_stateowner->so_confirmed = 1; |
1da177e4 LT |
232 | printk("NFSD: unsupported OPEN claim type %d\n", |
233 | open->op_claim_type); | |
234 | status = nfserr_notsupp; | |
235 | goto out; | |
236 | default: | |
237 | printk("NFSD: Invalid OPEN claim type %d\n", | |
238 | open->op_claim_type); | |
239 | status = nfserr_inval; | |
240 | goto out; | |
241 | } | |
242 | /* | |
243 | * nfsd4_process_open2() does the actual opening of the file. If | |
244 | * successful, it (1) truncates the file if open->op_truncate was | |
245 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
246 | */ | |
ca364317 | 247 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
1da177e4 | 248 | out: |
f2327d9a | 249 | if (open->op_stateowner) { |
1da177e4 | 250 | nfs4_get_stateowner(open->op_stateowner); |
a4f1706a | 251 | cstate->replay_owner = open->op_stateowner; |
f2327d9a | 252 | } |
1da177e4 LT |
253 | nfs4_unlock_state(); |
254 | return status; | |
255 | } | |
256 | ||
257 | /* | |
258 | * filehandle-manipulating ops. | |
259 | */ | |
7191155b | 260 | static __be32 |
b591480b BF |
261 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
262 | struct svc_fh **getfh) | |
1da177e4 | 263 | { |
ca364317 | 264 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
265 | return nfserr_nofilehandle; |
266 | ||
ca364317 | 267 | *getfh = &cstate->current_fh; |
1da177e4 LT |
268 | return nfs_ok; |
269 | } | |
270 | ||
7191155b | 271 | static __be32 |
ca364317 BF |
272 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
273 | struct nfsd4_putfh *putfh) | |
1da177e4 | 274 | { |
ca364317 BF |
275 | fh_put(&cstate->current_fh); |
276 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; | |
277 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, | |
278 | putfh->pf_fhlen); | |
279 | return fh_verify(rqstp, &cstate->current_fh, 0, MAY_NOP); | |
1da177e4 LT |
280 | } |
281 | ||
7191155b | 282 | static __be32 |
b591480b BF |
283 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
284 | void *arg) | |
1da177e4 | 285 | { |
b37ad28b | 286 | __be32 status; |
1da177e4 | 287 | |
ca364317 | 288 | fh_put(&cstate->current_fh); |
df547efb | 289 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
1da177e4 LT |
290 | return status; |
291 | } | |
292 | ||
7191155b | 293 | static __be32 |
b591480b BF |
294 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
295 | void *arg) | |
1da177e4 | 296 | { |
ca364317 | 297 | if (!cstate->save_fh.fh_dentry) |
1da177e4 LT |
298 | return nfserr_restorefh; |
299 | ||
ca364317 | 300 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
1da177e4 LT |
301 | return nfs_ok; |
302 | } | |
303 | ||
7191155b | 304 | static __be32 |
b591480b BF |
305 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
306 | void *arg) | |
1da177e4 | 307 | { |
ca364317 | 308 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
309 | return nfserr_nofilehandle; |
310 | ||
ca364317 | 311 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
1da177e4 LT |
312 | return nfs_ok; |
313 | } | |
314 | ||
315 | /* | |
316 | * misc nfsv4 ops | |
317 | */ | |
7191155b | 318 | static __be32 |
ca364317 BF |
319 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
320 | struct nfsd4_access *access) | |
1da177e4 LT |
321 | { |
322 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) | |
323 | return nfserr_inval; | |
324 | ||
325 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
326 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
327 | &access->ac_supported); | |
1da177e4 LT |
328 | } |
329 | ||
7191155b | 330 | static __be32 |
ca364317 BF |
331 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
332 | struct nfsd4_commit *commit) | |
1da177e4 | 333 | { |
b37ad28b | 334 | __be32 status; |
1da177e4 LT |
335 | |
336 | u32 *p = (u32 *)commit->co_verf.data; | |
337 | *p++ = nfssvc_boot.tv_sec; | |
338 | *p++ = nfssvc_boot.tv_usec; | |
339 | ||
ca364317 BF |
340 | status = nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
341 | commit->co_count); | |
1da177e4 LT |
342 | if (status == nfserr_symlink) |
343 | status = nfserr_inval; | |
344 | return status; | |
345 | } | |
346 | ||
b37ad28b | 347 | static __be32 |
ca364317 BF |
348 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
349 | struct nfsd4_create *create) | |
1da177e4 LT |
350 | { |
351 | struct svc_fh resfh; | |
b37ad28b | 352 | __be32 status; |
1da177e4 LT |
353 | dev_t rdev; |
354 | ||
355 | fh_init(&resfh, NFS4_FHSIZE); | |
356 | ||
ca364317 | 357 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, MAY_CREATE); |
1da177e4 LT |
358 | if (status == nfserr_symlink) |
359 | status = nfserr_notdir; | |
360 | if (status) | |
361 | return status; | |
362 | ||
363 | switch (create->cr_type) { | |
364 | case NF4LNK: | |
365 | /* ugh! we have to null-terminate the linktext, or | |
366 | * vfs_symlink() will choke. it is always safe to | |
367 | * null-terminate by brute force, since at worst we | |
368 | * will overwrite the first byte of the create namelen | |
369 | * in the XDR buffer, which has already been extracted | |
370 | * during XDR decode. | |
371 | */ | |
372 | create->cr_linkname[create->cr_linklen] = 0; | |
373 | ||
ca364317 BF |
374 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
375 | create->cr_name, create->cr_namelen, | |
376 | create->cr_linkname, create->cr_linklen, | |
377 | &resfh, &create->cr_iattr); | |
1da177e4 LT |
378 | break; |
379 | ||
380 | case NF4BLK: | |
381 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
382 | if (MAJOR(rdev) != create->cr_specdata1 || | |
383 | MINOR(rdev) != create->cr_specdata2) | |
384 | return nfserr_inval; | |
ca364317 BF |
385 | status = nfsd_create(rqstp, &cstate->current_fh, |
386 | create->cr_name, create->cr_namelen, | |
387 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
388 | break; |
389 | ||
390 | case NF4CHR: | |
391 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
392 | if (MAJOR(rdev) != create->cr_specdata1 || | |
393 | MINOR(rdev) != create->cr_specdata2) | |
394 | return nfserr_inval; | |
ca364317 BF |
395 | status = nfsd_create(rqstp, &cstate->current_fh, |
396 | create->cr_name, create->cr_namelen, | |
397 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
398 | break; |
399 | ||
400 | case NF4SOCK: | |
ca364317 BF |
401 | status = nfsd_create(rqstp, &cstate->current_fh, |
402 | create->cr_name, create->cr_namelen, | |
403 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
404 | break; |
405 | ||
406 | case NF4FIFO: | |
ca364317 BF |
407 | status = nfsd_create(rqstp, &cstate->current_fh, |
408 | create->cr_name, create->cr_namelen, | |
409 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
410 | break; |
411 | ||
412 | case NF4DIR: | |
413 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
414 | status = nfsd_create(rqstp, &cstate->current_fh, |
415 | create->cr_name, create->cr_namelen, | |
416 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
417 | break; |
418 | ||
419 | default: | |
420 | status = nfserr_badtype; | |
421 | } | |
422 | ||
423 | if (!status) { | |
ca364317 BF |
424 | fh_unlock(&cstate->current_fh); |
425 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
426 | fh_dup2(&cstate->current_fh, &resfh); | |
1da177e4 LT |
427 | } |
428 | ||
429 | fh_put(&resfh); | |
430 | return status; | |
431 | } | |
432 | ||
7191155b | 433 | static __be32 |
ca364317 BF |
434 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
435 | struct nfsd4_getattr *getattr) | |
1da177e4 | 436 | { |
b37ad28b | 437 | __be32 status; |
1da177e4 | 438 | |
ca364317 | 439 | status = fh_verify(rqstp, &cstate->current_fh, 0, MAY_NOP); |
1da177e4 LT |
440 | if (status) |
441 | return status; | |
442 | ||
443 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
444 | return nfserr_inval; | |
445 | ||
446 | getattr->ga_bmval[0] &= NFSD_SUPPORTED_ATTRS_WORD0; | |
447 | getattr->ga_bmval[1] &= NFSD_SUPPORTED_ATTRS_WORD1; | |
448 | ||
ca364317 | 449 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
450 | return nfs_ok; |
451 | } | |
452 | ||
7191155b | 453 | static __be32 |
ca364317 BF |
454 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
455 | struct nfsd4_link *link) | |
1da177e4 | 456 | { |
b37ad28b | 457 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 458 | |
ca364317 | 459 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 460 | return status; |
ca364317 BF |
461 | status = nfsd_link(rqstp, &cstate->current_fh, |
462 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 463 | if (!status) |
ca364317 | 464 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
465 | return status; |
466 | } | |
467 | ||
b37ad28b | 468 | static __be32 |
b591480b BF |
469 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
470 | void *arg) | |
1da177e4 LT |
471 | { |
472 | struct svc_fh tmp_fh; | |
b37ad28b | 473 | __be32 ret; |
1da177e4 LT |
474 | |
475 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
476 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
477 | if (ret) | |
1da177e4 | 478 | return ret; |
ca364317 | 479 | if (tmp_fh.fh_dentry == cstate->current_fh.fh_dentry) { |
1da177e4 LT |
480 | fh_put(&tmp_fh); |
481 | return nfserr_noent; | |
482 | } | |
483 | fh_put(&tmp_fh); | |
ca364317 BF |
484 | return nfsd_lookup(rqstp, &cstate->current_fh, |
485 | "..", 2, &cstate->current_fh); | |
1da177e4 LT |
486 | } |
487 | ||
7191155b | 488 | static __be32 |
ca364317 BF |
489 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
490 | struct nfsd4_lookup *lookup) | |
1da177e4 | 491 | { |
ca364317 BF |
492 | return nfsd_lookup(rqstp, &cstate->current_fh, |
493 | lookup->lo_name, lookup->lo_len, | |
494 | &cstate->current_fh); | |
1da177e4 LT |
495 | } |
496 | ||
7191155b | 497 | static __be32 |
ca364317 BF |
498 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
499 | struct nfsd4_read *read) | |
1da177e4 | 500 | { |
b37ad28b | 501 | __be32 status; |
1da177e4 LT |
502 | |
503 | /* no need to check permission - this will be done in nfsd_read() */ | |
504 | ||
7e06b7f9 | 505 | read->rd_filp = NULL; |
1da177e4 LT |
506 | if (read->rd_offset >= OFFSET_MAX) |
507 | return nfserr_inval; | |
508 | ||
509 | nfs4_lock_state(); | |
510 | /* check stateid */ | |
ca364317 BF |
511 | if ((status = nfs4_preprocess_stateid_op(&cstate->current_fh, |
512 | &read->rd_stateid, | |
7e06b7f9 | 513 | CHECK_FH | RD_STATE, &read->rd_filp))) { |
1da177e4 LT |
514 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
515 | goto out; | |
516 | } | |
7e06b7f9 N |
517 | if (read->rd_filp) |
518 | get_file(read->rd_filp); | |
1da177e4 LT |
519 | status = nfs_ok; |
520 | out: | |
521 | nfs4_unlock_state(); | |
522 | read->rd_rqstp = rqstp; | |
ca364317 | 523 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
524 | return status; |
525 | } | |
526 | ||
7191155b | 527 | static __be32 |
ca364317 BF |
528 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
529 | struct nfsd4_readdir *readdir) | |
1da177e4 LT |
530 | { |
531 | u64 cookie = readdir->rd_cookie; | |
532 | static const nfs4_verifier zeroverf; | |
533 | ||
534 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
535 | ||
536 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
537 | return nfserr_inval; | |
538 | ||
539 | readdir->rd_bmval[0] &= NFSD_SUPPORTED_ATTRS_WORD0; | |
540 | readdir->rd_bmval[1] &= NFSD_SUPPORTED_ATTRS_WORD1; | |
541 | ||
542 | if ((cookie > ~(u32)0) || (cookie == 1) || (cookie == 2) || | |
543 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) | |
544 | return nfserr_bad_cookie; | |
545 | ||
546 | readdir->rd_rqstp = rqstp; | |
ca364317 | 547 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
548 | return nfs_ok; |
549 | } | |
550 | ||
7191155b | 551 | static __be32 |
ca364317 BF |
552 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
553 | struct nfsd4_readlink *readlink) | |
1da177e4 LT |
554 | { |
555 | readlink->rl_rqstp = rqstp; | |
ca364317 | 556 | readlink->rl_fhp = &cstate->current_fh; |
1da177e4 LT |
557 | return nfs_ok; |
558 | } | |
559 | ||
7191155b | 560 | static __be32 |
ca364317 BF |
561 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
562 | struct nfsd4_remove *remove) | |
1da177e4 | 563 | { |
b37ad28b | 564 | __be32 status; |
1da177e4 | 565 | |
c815afc7 N |
566 | if (nfs4_in_grace()) |
567 | return nfserr_grace; | |
ca364317 BF |
568 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
569 | remove->rm_name, remove->rm_namelen); | |
1da177e4 LT |
570 | if (status == nfserr_symlink) |
571 | return nfserr_notdir; | |
572 | if (!status) { | |
ca364317 BF |
573 | fh_unlock(&cstate->current_fh); |
574 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
575 | } |
576 | return status; | |
577 | } | |
578 | ||
7191155b | 579 | static __be32 |
ca364317 BF |
580 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
581 | struct nfsd4_rename *rename) | |
1da177e4 | 582 | { |
b37ad28b | 583 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 584 | |
ca364317 | 585 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 586 | return status; |
ca364317 | 587 | if (nfs4_in_grace() && !(cstate->save_fh.fh_export->ex_flags |
c815afc7 N |
588 | & NFSEXP_NOSUBTREECHECK)) |
589 | return nfserr_grace; | |
ca364317 BF |
590 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
591 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 LT |
592 | rename->rn_tname, rename->rn_tnamelen); |
593 | ||
594 | /* the underlying filesystem returns different error's than required | |
595 | * by NFSv4. both save_fh and current_fh have been verified.. */ | |
596 | if (status == nfserr_isdir) | |
597 | status = nfserr_exist; | |
598 | else if ((status == nfserr_notdir) && | |
ca364317 BF |
599 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
600 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) | |
1da177e4 LT |
601 | status = nfserr_exist; |
602 | else if (status == nfserr_symlink) | |
603 | status = nfserr_notdir; | |
604 | ||
605 | if (!status) { | |
ca364317 BF |
606 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
607 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
1da177e4 LT |
608 | } |
609 | return status; | |
610 | } | |
611 | ||
7191155b | 612 | static __be32 |
ca364317 BF |
613 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
614 | struct nfsd4_setattr *setattr) | |
1da177e4 | 615 | { |
b37ad28b | 616 | __be32 status = nfs_ok; |
1da177e4 | 617 | |
1da177e4 LT |
618 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
619 | nfs4_lock_state(); | |
ca364317 | 620 | status = nfs4_preprocess_stateid_op(&cstate->current_fh, |
375c5547 | 621 | &setattr->sa_stateid, CHECK_FH | WR_STATE, NULL); |
1da177e4 | 622 | nfs4_unlock_state(); |
375c5547 | 623 | if (status) { |
3e3b4800 | 624 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
625 | return status; |
626 | } | |
1da177e4 LT |
627 | } |
628 | status = nfs_ok; | |
629 | if (setattr->sa_acl != NULL) | |
ca364317 BF |
630 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
631 | setattr->sa_acl); | |
1da177e4 | 632 | if (status) |
375c5547 | 633 | return status; |
ca364317 | 634 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 635 | 0, (time_t)0); |
1da177e4 LT |
636 | return status; |
637 | } | |
638 | ||
7191155b | 639 | static __be32 |
ca364317 BF |
640 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
641 | struct nfsd4_write *write) | |
1da177e4 LT |
642 | { |
643 | stateid_t *stateid = &write->wr_stateid; | |
644 | struct file *filp = NULL; | |
645 | u32 *p; | |
b37ad28b | 646 | __be32 status = nfs_ok; |
1da177e4 LT |
647 | |
648 | /* no need to check permission - this will be done in nfsd_write() */ | |
649 | ||
650 | if (write->wr_offset >= OFFSET_MAX) | |
651 | return nfserr_inval; | |
652 | ||
653 | nfs4_lock_state(); | |
ca364317 | 654 | status = nfs4_preprocess_stateid_op(&cstate->current_fh, stateid, |
375c5547 | 655 | CHECK_FH | WR_STATE, &filp); |
7e06b7f9 N |
656 | if (filp) |
657 | get_file(filp); | |
1da177e4 LT |
658 | nfs4_unlock_state(); |
659 | ||
375c5547 BF |
660 | if (status) { |
661 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); | |
662 | return status; | |
663 | } | |
664 | ||
1da177e4 LT |
665 | write->wr_bytes_written = write->wr_buflen; |
666 | write->wr_how_written = write->wr_stable_how; | |
667 | p = (u32 *)write->wr_verifier.data; | |
668 | *p++ = nfssvc_boot.tv_sec; | |
669 | *p++ = nfssvc_boot.tv_usec; | |
670 | ||
ca364317 BF |
671 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
672 | write->wr_offset, rqstp->rq_vec, write->wr_vlen, | |
673 | write->wr_buflen, &write->wr_how_written); | |
7e06b7f9 N |
674 | if (filp) |
675 | fput(filp); | |
1da177e4 LT |
676 | |
677 | if (status == nfserr_symlink) | |
678 | status = nfserr_inval; | |
679 | return status; | |
1da177e4 LT |
680 | } |
681 | ||
682 | /* This routine never returns NFS_OK! If there are no other errors, it | |
683 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
684 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
685 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
686 | */ | |
b37ad28b | 687 | static __be32 |
c954e2a5 | 688 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 689 | struct nfsd4_verify *verify) |
1da177e4 | 690 | { |
2ebbc012 | 691 | __be32 *buf, *p; |
1da177e4 | 692 | int count; |
b37ad28b | 693 | __be32 status; |
1da177e4 | 694 | |
ca364317 | 695 | status = fh_verify(rqstp, &cstate->current_fh, 0, MAY_NOP); |
1da177e4 LT |
696 | if (status) |
697 | return status; | |
698 | ||
699 | if ((verify->ve_bmval[0] & ~NFSD_SUPPORTED_ATTRS_WORD0) | |
700 | || (verify->ve_bmval[1] & ~NFSD_SUPPORTED_ATTRS_WORD1)) | |
701 | return nfserr_attrnotsupp; | |
702 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) | |
703 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
704 | return nfserr_inval; | |
705 | if (verify->ve_attrlen & 3) | |
706 | return nfserr_inval; | |
707 | ||
708 | /* count in words: | |
709 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
710 | */ | |
711 | count = 4 + (verify->ve_attrlen >> 2); | |
712 | buf = kmalloc(count << 2, GFP_KERNEL); | |
713 | if (!buf) | |
714 | return nfserr_resource; | |
715 | ||
ca364317 BF |
716 | status = nfsd4_encode_fattr(&cstate->current_fh, |
717 | cstate->current_fh.fh_export, | |
718 | cstate->current_fh.fh_dentry, buf, | |
1da177e4 LT |
719 | &count, verify->ve_bmval, |
720 | rqstp); | |
721 | ||
722 | /* this means that nfsd4_encode_fattr() ran out of space */ | |
723 | if (status == nfserr_resource && count == 0) | |
724 | status = nfserr_not_same; | |
725 | if (status) | |
726 | goto out_kfree; | |
727 | ||
728 | p = buf + 3; | |
729 | status = nfserr_not_same; | |
730 | if (ntohl(*p++) != verify->ve_attrlen) | |
731 | goto out_kfree; | |
732 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
733 | status = nfserr_same; | |
734 | ||
735 | out_kfree: | |
736 | kfree(buf); | |
737 | return status; | |
738 | } | |
739 | ||
c954e2a5 BF |
740 | static __be32 |
741 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
742 | struct nfsd4_verify *verify) | |
743 | { | |
744 | __be32 status; | |
745 | ||
746 | status = _nfsd4_verify(rqstp, cstate, verify); | |
747 | return status == nfserr_not_same ? nfs_ok : status; | |
748 | } | |
749 | ||
750 | static __be32 | |
751 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
752 | struct nfsd4_verify *verify) | |
753 | { | |
754 | __be32 status; | |
755 | ||
756 | status = _nfsd4_verify(rqstp, cstate, verify); | |
757 | return status == nfserr_same ? nfs_ok : status; | |
758 | } | |
759 | ||
1da177e4 LT |
760 | /* |
761 | * NULL call. | |
762 | */ | |
7111c66e | 763 | static __be32 |
1da177e4 LT |
764 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
765 | { | |
766 | return nfs_ok; | |
767 | } | |
768 | ||
e2b20950 SA |
769 | static inline void nfsd4_increment_op_stats(u32 opnum) |
770 | { | |
771 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
772 | nfsdstats.nfs4_opcount[opnum]++; | |
773 | } | |
774 | ||
ca364317 BF |
775 | static void cstate_free(struct nfsd4_compound_state *cstate) |
776 | { | |
777 | if (cstate == NULL) | |
778 | return; | |
779 | fh_put(&cstate->current_fh); | |
780 | fh_put(&cstate->save_fh); | |
a4f1706a | 781 | BUG_ON(cstate->replay_owner); |
ca364317 BF |
782 | kfree(cstate); |
783 | } | |
784 | ||
785 | static struct nfsd4_compound_state *cstate_alloc(void) | |
786 | { | |
787 | struct nfsd4_compound_state *cstate; | |
788 | ||
789 | cstate = kmalloc(sizeof(struct nfsd4_compound_state), GFP_KERNEL); | |
790 | if (cstate == NULL) | |
791 | return NULL; | |
792 | fh_init(&cstate->current_fh, NFS4_FHSIZE); | |
793 | fh_init(&cstate->save_fh, NFS4_FHSIZE); | |
a4f1706a | 794 | cstate->replay_owner = NULL; |
ca364317 BF |
795 | return cstate; |
796 | } | |
1da177e4 | 797 | |
b591480b BF |
798 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
799 | void *); | |
800 | ||
801 | struct nfsd4_operation { | |
802 | nfsd4op_func op_func; | |
803 | u32 op_flags; | |
27d630ec BF |
804 | /* Most ops require a valid current filehandle; a few don't: */ |
805 | #define ALLOWED_WITHOUT_FH 1 | |
eeac294e | 806 | /* GETATTR and ops not listed as returning NFS4ERR_MOVED: */ |
27d630ec | 807 | #define ALLOWED_ON_ABSENT_FS 2 |
b591480b BF |
808 | }; |
809 | ||
810 | static struct nfsd4_operation nfsd4_ops[]; | |
811 | ||
1da177e4 LT |
812 | /* |
813 | * COMPOUND call. | |
814 | */ | |
7111c66e | 815 | static __be32 |
1da177e4 LT |
816 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
817 | struct nfsd4_compoundargs *args, | |
818 | struct nfsd4_compoundres *resp) | |
819 | { | |
820 | struct nfsd4_op *op; | |
b591480b | 821 | struct nfsd4_operation *opdesc; |
ca364317 | 822 | struct nfsd4_compound_state *cstate = NULL; |
e5710199 | 823 | int slack_bytes; |
b37ad28b | 824 | __be32 status; |
1da177e4 LT |
825 | |
826 | status = nfserr_resource; | |
ca364317 BF |
827 | cstate = cstate_alloc(); |
828 | if (cstate == NULL) | |
1da177e4 | 829 | goto out; |
1da177e4 LT |
830 | |
831 | resp->xbuf = &rqstp->rq_res; | |
832 | resp->p = rqstp->rq_res.head[0].iov_base + rqstp->rq_res.head[0].iov_len; | |
833 | resp->tagp = resp->p; | |
834 | /* reserve space for: taglen, tag, and opcnt */ | |
835 | resp->p += 2 + XDR_QUADLEN(args->taglen); | |
836 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; | |
837 | resp->taglen = args->taglen; | |
838 | resp->tag = args->tag; | |
839 | resp->opcnt = 0; | |
840 | resp->rqstp = rqstp; | |
841 | ||
842 | /* | |
843 | * According to RFC3010, this takes precedence over all other errors. | |
844 | */ | |
845 | status = nfserr_minor_vers_mismatch; | |
846 | if (args->minorversion > NFSD_SUPPORTED_MINOR_VERSION) | |
847 | goto out; | |
848 | ||
849 | status = nfs_ok; | |
850 | while (!status && resp->opcnt < args->opcnt) { | |
851 | op = &args->ops[resp->opcnt++]; | |
852 | ||
fd445277 BF |
853 | dprintk("nfsv4 compound op #%d: %d\n", resp->opcnt, op->opnum); |
854 | ||
1da177e4 LT |
855 | /* |
856 | * The XDR decode routines may have pre-set op->status; | |
857 | * for example, if there is a miscellaneous XDR error | |
858 | * it will be set to nfserr_bad_xdr. | |
859 | */ | |
860 | if (op->status) | |
861 | goto encode_op; | |
862 | ||
863 | /* We must be able to encode a successful response to | |
864 | * this operation, with enough room left over to encode a | |
865 | * failed response to the next operation. If we don't | |
866 | * have enough room, fail with ERR_RESOURCE. | |
867 | */ | |
e5710199 BF |
868 | slack_bytes = (char *)resp->end - (char *)resp->p; |
869 | if (slack_bytes < COMPOUND_SLACK_SPACE | |
870 | + COMPOUND_ERR_SLACK_SPACE) { | |
871 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); | |
1da177e4 LT |
872 | op->status = nfserr_resource; |
873 | goto encode_op; | |
874 | } | |
875 | ||
b591480b BF |
876 | opdesc = &nfsd4_ops[op->opnum]; |
877 | ||
ca364317 | 878 | if (!cstate->current_fh.fh_dentry) { |
27d630ec | 879 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
880 | op->status = nfserr_nofilehandle; |
881 | goto encode_op; | |
882 | } | |
eeac294e BF |
883 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
884 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { | |
42ca0993 | 885 | op->status = nfserr_moved; |
1da177e4 LT |
886 | goto encode_op; |
887 | } | |
b591480b BF |
888 | |
889 | if (opdesc->op_func) | |
890 | op->status = opdesc->op_func(rqstp, cstate, &op->u); | |
891 | else | |
1da177e4 | 892 | BUG_ON(op->status == nfs_ok); |
1da177e4 LT |
893 | |
894 | encode_op: | |
a90b061c | 895 | if (op->status == nfserr_replay_me) { |
a4f1706a | 896 | op->replay = &cstate->replay_owner->so_replay; |
1da177e4 LT |
897 | nfsd4_encode_replay(resp, op); |
898 | status = op->status = op->replay->rp_status; | |
899 | } else { | |
900 | nfsd4_encode_operation(resp, op); | |
901 | status = op->status; | |
902 | } | |
a4f1706a BF |
903 | if (cstate->replay_owner) { |
904 | nfs4_put_stateowner(cstate->replay_owner); | |
905 | cstate->replay_owner = NULL; | |
1da177e4 | 906 | } |
7e06b7f9 N |
907 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
908 | if (op->opnum == OP_READ && op->u.read.rd_filp) | |
909 | fput(op->u.read.rd_filp); | |
e2b20950 SA |
910 | |
911 | nfsd4_increment_op_stats(op->opnum); | |
1da177e4 LT |
912 | } |
913 | ||
914 | out: | |
915 | nfsd4_release_compoundargs(args); | |
ca364317 | 916 | cstate_free(cstate); |
1da177e4 LT |
917 | return status; |
918 | } | |
919 | ||
b591480b BF |
920 | static struct nfsd4_operation nfsd4_ops[OP_RELEASE_LOCKOWNER+1] = { |
921 | [OP_ACCESS] = { | |
922 | .op_func = (nfsd4op_func)nfsd4_access, | |
923 | }, | |
924 | [OP_CLOSE] = { | |
925 | .op_func = (nfsd4op_func)nfsd4_close, | |
926 | }, | |
927 | [OP_COMMIT] = { | |
928 | .op_func = (nfsd4op_func)nfsd4_commit, | |
929 | }, | |
930 | [OP_CREATE] = { | |
931 | .op_func = (nfsd4op_func)nfsd4_create, | |
932 | }, | |
933 | [OP_DELEGRETURN] = { | |
934 | .op_func = (nfsd4op_func)nfsd4_delegreturn, | |
935 | }, | |
936 | [OP_GETATTR] = { | |
937 | .op_func = (nfsd4op_func)nfsd4_getattr, | |
eeac294e | 938 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b591480b BF |
939 | }, |
940 | [OP_GETFH] = { | |
941 | .op_func = (nfsd4op_func)nfsd4_getfh, | |
942 | }, | |
943 | [OP_LINK] = { | |
944 | .op_func = (nfsd4op_func)nfsd4_link, | |
945 | }, | |
946 | [OP_LOCK] = { | |
947 | .op_func = (nfsd4op_func)nfsd4_lock, | |
948 | }, | |
949 | [OP_LOCKT] = { | |
950 | .op_func = (nfsd4op_func)nfsd4_lockt, | |
951 | }, | |
952 | [OP_LOCKU] = { | |
953 | .op_func = (nfsd4op_func)nfsd4_locku, | |
954 | }, | |
955 | [OP_LOOKUP] = { | |
956 | .op_func = (nfsd4op_func)nfsd4_lookup, | |
957 | }, | |
958 | [OP_LOOKUPP] = { | |
959 | .op_func = (nfsd4op_func)nfsd4_lookupp, | |
960 | }, | |
961 | [OP_NVERIFY] = { | |
962 | .op_func = (nfsd4op_func)nfsd4_nverify, | |
963 | }, | |
964 | [OP_OPEN] = { | |
965 | .op_func = (nfsd4op_func)nfsd4_open, | |
966 | }, | |
967 | [OP_OPEN_CONFIRM] = { | |
968 | .op_func = (nfsd4op_func)nfsd4_open_confirm, | |
969 | }, | |
970 | [OP_OPEN_DOWNGRADE] = { | |
971 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, | |
972 | }, | |
973 | [OP_PUTFH] = { | |
974 | .op_func = (nfsd4op_func)nfsd4_putfh, | |
27d630ec | 975 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b591480b | 976 | }, |
eeac294e BF |
977 | [OP_PUTPUBFH] = { |
978 | /* unsupported; just for future reference: */ | |
27d630ec | 979 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
eeac294e | 980 | }, |
b591480b BF |
981 | [OP_PUTROOTFH] = { |
982 | .op_func = (nfsd4op_func)nfsd4_putrootfh, | |
27d630ec | 983 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b591480b BF |
984 | }, |
985 | [OP_READ] = { | |
986 | .op_func = (nfsd4op_func)nfsd4_read, | |
987 | }, | |
988 | [OP_READDIR] = { | |
989 | .op_func = (nfsd4op_func)nfsd4_readdir, | |
990 | }, | |
991 | [OP_READLINK] = { | |
992 | .op_func = (nfsd4op_func)nfsd4_readlink, | |
993 | }, | |
994 | [OP_REMOVE] = { | |
995 | .op_func = (nfsd4op_func)nfsd4_remove, | |
996 | }, | |
997 | [OP_RENAME] = { | |
998 | .op_func = (nfsd4op_func)nfsd4_rename, | |
999 | }, | |
1000 | [OP_RENEW] = { | |
1001 | .op_func = (nfsd4op_func)nfsd4_renew, | |
27d630ec | 1002 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b591480b BF |
1003 | }, |
1004 | [OP_RESTOREFH] = { | |
1005 | .op_func = (nfsd4op_func)nfsd4_restorefh, | |
27d630ec | 1006 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b591480b BF |
1007 | }, |
1008 | [OP_SAVEFH] = { | |
1009 | .op_func = (nfsd4op_func)nfsd4_savefh, | |
1010 | }, | |
1011 | [OP_SETATTR] = { | |
1012 | .op_func = (nfsd4op_func)nfsd4_setattr, | |
1013 | }, | |
1014 | [OP_SETCLIENTID] = { | |
1015 | .op_func = (nfsd4op_func)nfsd4_setclientid, | |
27d630ec | 1016 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b591480b BF |
1017 | }, |
1018 | [OP_SETCLIENTID_CONFIRM] = { | |
1019 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, | |
27d630ec | 1020 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b591480b BF |
1021 | }, |
1022 | [OP_VERIFY] = { | |
1023 | .op_func = (nfsd4op_func)nfsd4_verify, | |
1024 | }, | |
1025 | [OP_WRITE] = { | |
1026 | .op_func = (nfsd4op_func)nfsd4_write, | |
1027 | }, | |
1028 | [OP_RELEASE_LOCKOWNER] = { | |
1029 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, | |
27d630ec | 1030 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
b591480b BF |
1031 | }, |
1032 | }; | |
1033 | ||
1da177e4 LT |
1034 | #define nfs4svc_decode_voidargs NULL |
1035 | #define nfs4svc_release_void NULL | |
1036 | #define nfsd4_voidres nfsd4_voidargs | |
1037 | #define nfs4svc_release_compound NULL | |
1038 | struct nfsd4_voidargs { int dummy; }; | |
1039 | ||
1040 | #define PROC(name, argt, rest, relt, cache, respsize) \ | |
1041 | { (svc_procfunc) nfsd4_proc_##name, \ | |
1042 | (kxdrproc_t) nfs4svc_decode_##argt##args, \ | |
1043 | (kxdrproc_t) nfs4svc_encode_##rest##res, \ | |
1044 | (kxdrproc_t) nfs4svc_release_##relt, \ | |
1045 | sizeof(struct nfsd4_##argt##args), \ | |
1046 | sizeof(struct nfsd4_##rest##res), \ | |
1047 | 0, \ | |
1048 | cache, \ | |
1049 | respsize, \ | |
1050 | } | |
1051 | ||
1052 | /* | |
1053 | * TODO: At the present time, the NFSv4 server does not do XID caching | |
1054 | * of requests. Implementing XID caching would not be a serious problem, | |
1055 | * although it would require a mild change in interfaces since one | |
1056 | * doesn't know whether an NFSv4 request is idempotent until after the | |
1057 | * XDR decode. However, XID caching totally confuses pynfs (Peter | |
1058 | * Astrand's regression testsuite for NFSv4 servers), which reuses | |
1059 | * XID's liberally, so I've left it unimplemented until pynfs generates | |
1060 | * better XID's. | |
1061 | */ | |
1062 | static struct svc_procedure nfsd_procedures4[2] = { | |
1063 | PROC(null, void, void, void, RC_NOCACHE, 1), | |
7775f4c8 | 1064 | PROC(compound, compound, compound, compound, RC_NOCACHE, NFSD_BUFSIZE/4) |
1da177e4 LT |
1065 | }; |
1066 | ||
1067 | struct svc_version nfsd_version4 = { | |
1068 | .vs_vers = 4, | |
1069 | .vs_nproc = 2, | |
1070 | .vs_proc = nfsd_procedures4, | |
1071 | .vs_dispatch = nfsd_dispatch, | |
1072 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
1073 | }; | |
1074 | ||
1075 | /* | |
1076 | * Local variables: | |
1077 | * c-basic-offset: 8 | |
1078 | * End: | |
1079 | */ |