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Merge remote-tracking branch 'iwlwifi-fixes/master' into NEXT
[deliverable/linux.git] / fs / nfsd / nfs3proc.c
1 /*
2 * Process version 3 NFS requests.
3 *
4 * Copyright (C) 1996, 1997, 1998 Olaf Kirch <okir@monad.swb.de>
5 */
6
7 #include <linux/fs.h>
8 #include <linux/ext2_fs.h>
9 #include <linux/magic.h>
10
11 #include "cache.h"
12 #include "xdr3.h"
13 #include "vfs.h"
14
15 #define NFSDDBG_FACILITY NFSDDBG_PROC
16
17 #define RETURN_STATUS(st) { resp->status = (st); return (st); }
18
19 static int nfs3_ftypes[] = {
20 0, /* NF3NON */
21 S_IFREG, /* NF3REG */
22 S_IFDIR, /* NF3DIR */
23 S_IFBLK, /* NF3BLK */
24 S_IFCHR, /* NF3CHR */
25 S_IFLNK, /* NF3LNK */
26 S_IFSOCK, /* NF3SOCK */
27 S_IFIFO, /* NF3FIFO */
28 };
29
30 /*
31 * NULL call.
32 */
33 static __be32
34 nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
35 {
36 return nfs_ok;
37 }
38
39 /*
40 * Get a file's attributes
41 */
42 static __be32
43 nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
44 struct nfsd3_attrstat *resp)
45 {
46 __be32 nfserr;
47
48 dprintk("nfsd: GETATTR(3) %s\n",
49 SVCFH_fmt(&argp->fh));
50
51 fh_copy(&resp->fh, &argp->fh);
52 nfserr = fh_verify(rqstp, &resp->fh, 0,
53 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
54 if (nfserr)
55 RETURN_STATUS(nfserr);
56
57 nfserr = fh_getattr(&resp->fh, &resp->stat);
58
59 RETURN_STATUS(nfserr);
60 }
61
62 /*
63 * Set a file's attributes
64 */
65 static __be32
66 nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
67 struct nfsd3_attrstat *resp)
68 {
69 __be32 nfserr;
70
71 dprintk("nfsd: SETATTR(3) %s\n",
72 SVCFH_fmt(&argp->fh));
73
74 fh_copy(&resp->fh, &argp->fh);
75 nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
76 argp->check_guard, argp->guardtime);
77 RETURN_STATUS(nfserr);
78 }
79
80 /*
81 * Look up a path name component
82 */
83 static __be32
84 nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
85 struct nfsd3_diropres *resp)
86 {
87 __be32 nfserr;
88
89 dprintk("nfsd: LOOKUP(3) %s %.*s\n",
90 SVCFH_fmt(&argp->fh),
91 argp->len,
92 argp->name);
93
94 fh_copy(&resp->dirfh, &argp->fh);
95 fh_init(&resp->fh, NFS3_FHSIZE);
96
97 nfserr = nfsd_lookup(rqstp, &resp->dirfh,
98 argp->name,
99 argp->len,
100 &resp->fh);
101 RETURN_STATUS(nfserr);
102 }
103
104 /*
105 * Check file access
106 */
107 static __be32
108 nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
109 struct nfsd3_accessres *resp)
110 {
111 __be32 nfserr;
112
113 dprintk("nfsd: ACCESS(3) %s 0x%x\n",
114 SVCFH_fmt(&argp->fh),
115 argp->access);
116
117 fh_copy(&resp->fh, &argp->fh);
118 resp->access = argp->access;
119 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
120 RETURN_STATUS(nfserr);
121 }
122
123 /*
124 * Read a symlink.
125 */
126 static __be32
127 nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
128 struct nfsd3_readlinkres *resp)
129 {
130 __be32 nfserr;
131
132 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
133
134 /* Read the symlink. */
135 fh_copy(&resp->fh, &argp->fh);
136 resp->len = NFS3_MAXPATHLEN;
137 nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
138 RETURN_STATUS(nfserr);
139 }
140
141 /*
142 * Read a portion of a file.
143 */
144 static __be32
145 nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
146 struct nfsd3_readres *resp)
147 {
148 __be32 nfserr;
149 u32 max_blocksize = svc_max_payload(rqstp);
150
151 dprintk("nfsd: READ(3) %s %lu bytes at %Lu\n",
152 SVCFH_fmt(&argp->fh),
153 (unsigned long) argp->count,
154 (unsigned long long) argp->offset);
155
156 /* Obtain buffer pointer for payload.
157 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
158 * + 1 (xdr opaque byte count) = 26
159 */
160 resp->count = min(argp->count, max_blocksize);
161 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
162
163 fh_copy(&resp->fh, &argp->fh);
164 nfserr = nfsd_read(rqstp, &resp->fh,
165 argp->offset,
166 rqstp->rq_vec, argp->vlen,
167 &resp->count);
168 if (nfserr == 0) {
169 struct inode *inode = resp->fh.fh_dentry->d_inode;
170
171 resp->eof = (argp->offset + resp->count) >= inode->i_size;
172 }
173
174 RETURN_STATUS(nfserr);
175 }
176
177 /*
178 * Write data to a file
179 */
180 static __be32
181 nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
182 struct nfsd3_writeres *resp)
183 {
184 __be32 nfserr;
185 unsigned long cnt = argp->len;
186
187 dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
188 SVCFH_fmt(&argp->fh),
189 argp->len,
190 (unsigned long long) argp->offset,
191 argp->stable? " stable" : "");
192
193 fh_copy(&resp->fh, &argp->fh);
194 resp->committed = argp->stable;
195 nfserr = nfsd_write(rqstp, &resp->fh, NULL,
196 argp->offset,
197 rqstp->rq_vec, argp->vlen,
198 &cnt,
199 &resp->committed);
200 resp->count = cnt;
201 RETURN_STATUS(nfserr);
202 }
203
204 /*
205 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
206 * At least in theory; we'll see how it fares in practice when the
207 * first reports about SunOS compatibility problems start to pour in...
208 */
209 static __be32
210 nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
211 struct nfsd3_diropres *resp)
212 {
213 svc_fh *dirfhp, *newfhp = NULL;
214 struct iattr *attr;
215 __be32 nfserr;
216
217 dprintk("nfsd: CREATE(3) %s %.*s\n",
218 SVCFH_fmt(&argp->fh),
219 argp->len,
220 argp->name);
221
222 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
223 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
224 attr = &argp->attrs;
225
226 /* Get the directory inode */
227 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_CREATE);
228 if (nfserr)
229 RETURN_STATUS(nfserr);
230
231 /* Unfudge the mode bits */
232 attr->ia_mode &= ~S_IFMT;
233 if (!(attr->ia_valid & ATTR_MODE)) {
234 attr->ia_valid |= ATTR_MODE;
235 attr->ia_mode = S_IFREG;
236 } else {
237 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
238 }
239
240 /* Now create the file and set attributes */
241 nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
242 attr, newfhp,
243 argp->createmode, (u32 *)argp->verf, NULL, NULL);
244
245 RETURN_STATUS(nfserr);
246 }
247
248 /*
249 * Make directory. This operation is not idempotent.
250 */
251 static __be32
252 nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
253 struct nfsd3_diropres *resp)
254 {
255 __be32 nfserr;
256
257 dprintk("nfsd: MKDIR(3) %s %.*s\n",
258 SVCFH_fmt(&argp->fh),
259 argp->len,
260 argp->name);
261
262 argp->attrs.ia_valid &= ~ATTR_SIZE;
263 fh_copy(&resp->dirfh, &argp->fh);
264 fh_init(&resp->fh, NFS3_FHSIZE);
265 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
266 &argp->attrs, S_IFDIR, 0, &resp->fh);
267 fh_unlock(&resp->dirfh);
268 RETURN_STATUS(nfserr);
269 }
270
271 static __be32
272 nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
273 struct nfsd3_diropres *resp)
274 {
275 __be32 nfserr;
276
277 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
278 SVCFH_fmt(&argp->ffh),
279 argp->flen, argp->fname,
280 argp->tlen, argp->tname);
281
282 fh_copy(&resp->dirfh, &argp->ffh);
283 fh_init(&resp->fh, NFS3_FHSIZE);
284 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
285 argp->tname, &resp->fh);
286 RETURN_STATUS(nfserr);
287 }
288
289 /*
290 * Make socket/fifo/device.
291 */
292 static __be32
293 nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
294 struct nfsd3_diropres *resp)
295 {
296 __be32 nfserr;
297 int type;
298 dev_t rdev = 0;
299
300 dprintk("nfsd: MKNOD(3) %s %.*s\n",
301 SVCFH_fmt(&argp->fh),
302 argp->len,
303 argp->name);
304
305 fh_copy(&resp->dirfh, &argp->fh);
306 fh_init(&resp->fh, NFS3_FHSIZE);
307
308 if (argp->ftype == 0 || argp->ftype >= NF3BAD)
309 RETURN_STATUS(nfserr_inval);
310 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
311 rdev = MKDEV(argp->major, argp->minor);
312 if (MAJOR(rdev) != argp->major ||
313 MINOR(rdev) != argp->minor)
314 RETURN_STATUS(nfserr_inval);
315 } else
316 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
317 RETURN_STATUS(nfserr_inval);
318
319 type = nfs3_ftypes[argp->ftype];
320 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
321 &argp->attrs, type, rdev, &resp->fh);
322 fh_unlock(&resp->dirfh);
323 RETURN_STATUS(nfserr);
324 }
325
326 /*
327 * Remove file/fifo/socket etc.
328 */
329 static __be32
330 nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
331 struct nfsd3_attrstat *resp)
332 {
333 __be32 nfserr;
334
335 dprintk("nfsd: REMOVE(3) %s %.*s\n",
336 SVCFH_fmt(&argp->fh),
337 argp->len,
338 argp->name);
339
340 /* Unlink. -S_IFDIR means file must not be a directory */
341 fh_copy(&resp->fh, &argp->fh);
342 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
343 fh_unlock(&resp->fh);
344 RETURN_STATUS(nfserr);
345 }
346
347 /*
348 * Remove a directory
349 */
350 static __be32
351 nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
352 struct nfsd3_attrstat *resp)
353 {
354 __be32 nfserr;
355
356 dprintk("nfsd: RMDIR(3) %s %.*s\n",
357 SVCFH_fmt(&argp->fh),
358 argp->len,
359 argp->name);
360
361 fh_copy(&resp->fh, &argp->fh);
362 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
363 fh_unlock(&resp->fh);
364 RETURN_STATUS(nfserr);
365 }
366
367 static __be32
368 nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
369 struct nfsd3_renameres *resp)
370 {
371 __be32 nfserr;
372
373 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
374 SVCFH_fmt(&argp->ffh),
375 argp->flen,
376 argp->fname);
377 dprintk("nfsd: -> %s %.*s\n",
378 SVCFH_fmt(&argp->tfh),
379 argp->tlen,
380 argp->tname);
381
382 fh_copy(&resp->ffh, &argp->ffh);
383 fh_copy(&resp->tfh, &argp->tfh);
384 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
385 &resp->tfh, argp->tname, argp->tlen);
386 RETURN_STATUS(nfserr);
387 }
388
389 static __be32
390 nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
391 struct nfsd3_linkres *resp)
392 {
393 __be32 nfserr;
394
395 dprintk("nfsd: LINK(3) %s ->\n",
396 SVCFH_fmt(&argp->ffh));
397 dprintk("nfsd: -> %s %.*s\n",
398 SVCFH_fmt(&argp->tfh),
399 argp->tlen,
400 argp->tname);
401
402 fh_copy(&resp->fh, &argp->ffh);
403 fh_copy(&resp->tfh, &argp->tfh);
404 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
405 &resp->fh);
406 RETURN_STATUS(nfserr);
407 }
408
409 /*
410 * Read a portion of a directory.
411 */
412 static __be32
413 nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
414 struct nfsd3_readdirres *resp)
415 {
416 __be32 nfserr;
417 int count;
418
419 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
420 SVCFH_fmt(&argp->fh),
421 argp->count, (u32) argp->cookie);
422
423 /* Make sure we've room for the NULL ptr & eof flag, and shrink to
424 * client read size */
425 count = (argp->count >> 2) - 2;
426
427 /* Read directory and encode entries on the fly */
428 fh_copy(&resp->fh, &argp->fh);
429
430 resp->buflen = count;
431 resp->common.err = nfs_ok;
432 resp->buffer = argp->buffer;
433 resp->rqstp = rqstp;
434 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie,
435 &resp->common, nfs3svc_encode_entry);
436 memcpy(resp->verf, argp->verf, 8);
437 resp->count = resp->buffer - argp->buffer;
438 if (resp->offset)
439 xdr_encode_hyper(resp->offset, argp->cookie);
440
441 RETURN_STATUS(nfserr);
442 }
443
444 /*
445 * Read a portion of a directory, including file handles and attrs.
446 * For now, we choose to ignore the dircount parameter.
447 */
448 static __be32
449 nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
450 struct nfsd3_readdirres *resp)
451 {
452 __be32 nfserr;
453 int count = 0;
454 loff_t offset;
455 struct page **p;
456 caddr_t page_addr = NULL;
457
458 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
459 SVCFH_fmt(&argp->fh),
460 argp->count, (u32) argp->cookie);
461
462 /* Convert byte count to number of words (i.e. >> 2),
463 * and reserve room for the NULL ptr & eof flag (-2 words) */
464 resp->count = (argp->count >> 2) - 2;
465
466 /* Read directory and encode entries on the fly */
467 fh_copy(&resp->fh, &argp->fh);
468
469 resp->common.err = nfs_ok;
470 resp->buffer = argp->buffer;
471 resp->buflen = resp->count;
472 resp->rqstp = rqstp;
473 offset = argp->cookie;
474 nfserr = nfsd_readdir(rqstp, &resp->fh,
475 &offset,
476 &resp->common,
477 nfs3svc_encode_entry_plus);
478 memcpy(resp->verf, argp->verf, 8);
479 for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) {
480 page_addr = page_address(*p);
481
482 if (((caddr_t)resp->buffer >= page_addr) &&
483 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
484 count += (caddr_t)resp->buffer - page_addr;
485 break;
486 }
487 count += PAGE_SIZE;
488 }
489 resp->count = count >> 2;
490 if (resp->offset) {
491 if (unlikely(resp->offset1)) {
492 /* we ended up with offset on a page boundary */
493 *resp->offset = htonl(offset >> 32);
494 *resp->offset1 = htonl(offset & 0xffffffff);
495 resp->offset1 = NULL;
496 } else {
497 xdr_encode_hyper(resp->offset, offset);
498 }
499 }
500
501 RETURN_STATUS(nfserr);
502 }
503
504 /*
505 * Get file system stats
506 */
507 static __be32
508 nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
509 struct nfsd3_fsstatres *resp)
510 {
511 __be32 nfserr;
512
513 dprintk("nfsd: FSSTAT(3) %s\n",
514 SVCFH_fmt(&argp->fh));
515
516 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
517 fh_put(&argp->fh);
518 RETURN_STATUS(nfserr);
519 }
520
521 /*
522 * Get file system info
523 */
524 static __be32
525 nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
526 struct nfsd3_fsinfores *resp)
527 {
528 __be32 nfserr;
529 u32 max_blocksize = svc_max_payload(rqstp);
530
531 dprintk("nfsd: FSINFO(3) %s\n",
532 SVCFH_fmt(&argp->fh));
533
534 resp->f_rtmax = max_blocksize;
535 resp->f_rtpref = max_blocksize;
536 resp->f_rtmult = PAGE_SIZE;
537 resp->f_wtmax = max_blocksize;
538 resp->f_wtpref = max_blocksize;
539 resp->f_wtmult = PAGE_SIZE;
540 resp->f_dtpref = PAGE_SIZE;
541 resp->f_maxfilesize = ~(u32) 0;
542 resp->f_properties = NFS3_FSF_DEFAULT;
543
544 nfserr = fh_verify(rqstp, &argp->fh, 0,
545 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
546
547 /* Check special features of the file system. May request
548 * different read/write sizes for file systems known to have
549 * problems with large blocks */
550 if (nfserr == 0) {
551 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
552
553 /* Note that we don't care for remote fs's here */
554 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
555 resp->f_properties = NFS3_FSF_BILLYBOY;
556 }
557 resp->f_maxfilesize = sb->s_maxbytes;
558 }
559
560 fh_put(&argp->fh);
561 RETURN_STATUS(nfserr);
562 }
563
564 /*
565 * Get pathconf info for the specified file
566 */
567 static __be32
568 nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
569 struct nfsd3_pathconfres *resp)
570 {
571 __be32 nfserr;
572
573 dprintk("nfsd: PATHCONF(3) %s\n",
574 SVCFH_fmt(&argp->fh));
575
576 /* Set default pathconf */
577 resp->p_link_max = 255; /* at least */
578 resp->p_name_max = 255; /* at least */
579 resp->p_no_trunc = 0;
580 resp->p_chown_restricted = 1;
581 resp->p_case_insensitive = 0;
582 resp->p_case_preserving = 1;
583
584 nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
585
586 if (nfserr == 0) {
587 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
588
589 /* Note that we don't care for remote fs's here */
590 switch (sb->s_magic) {
591 case EXT2_SUPER_MAGIC:
592 resp->p_link_max = EXT2_LINK_MAX;
593 resp->p_name_max = EXT2_NAME_LEN;
594 break;
595 case MSDOS_SUPER_MAGIC:
596 resp->p_case_insensitive = 1;
597 resp->p_case_preserving = 0;
598 break;
599 }
600 }
601
602 fh_put(&argp->fh);
603 RETURN_STATUS(nfserr);
604 }
605
606
607 /*
608 * Commit a file (range) to stable storage.
609 */
610 static __be32
611 nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
612 struct nfsd3_commitres *resp)
613 {
614 __be32 nfserr;
615
616 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
617 SVCFH_fmt(&argp->fh),
618 argp->count,
619 (unsigned long long) argp->offset);
620
621 if (argp->offset > NFS_OFFSET_MAX)
622 RETURN_STATUS(nfserr_inval);
623
624 fh_copy(&resp->fh, &argp->fh);
625 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count);
626
627 RETURN_STATUS(nfserr);
628 }
629
630
631 /*
632 * NFSv3 Server procedures.
633 * Only the results of non-idempotent operations are cached.
634 */
635 #define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle
636 #define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
637 #define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
638 #define nfsd3_mkdirargs nfsd3_createargs
639 #define nfsd3_readdirplusargs nfsd3_readdirargs
640 #define nfsd3_fhandleargs nfsd_fhandle
641 #define nfsd3_fhandleres nfsd3_attrstat
642 #define nfsd3_attrstatres nfsd3_attrstat
643 #define nfsd3_wccstatres nfsd3_attrstat
644 #define nfsd3_createres nfsd3_diropres
645 #define nfsd3_voidres nfsd3_voidargs
646 struct nfsd3_voidargs { int dummy; };
647
648 #define PROC(name, argt, rest, relt, cache, respsize) \
649 { (svc_procfunc) nfsd3_proc_##name, \
650 (kxdrproc_t) nfs3svc_decode_##argt##args, \
651 (kxdrproc_t) nfs3svc_encode_##rest##res, \
652 (kxdrproc_t) nfs3svc_release_##relt, \
653 sizeof(struct nfsd3_##argt##args), \
654 sizeof(struct nfsd3_##rest##res), \
655 0, \
656 cache, \
657 respsize, \
658 }
659
660 #define ST 1 /* status*/
661 #define FH 17 /* filehandle with length */
662 #define AT 21 /* attributes */
663 #define pAT (1+AT) /* post attributes - conditional */
664 #define WC (7+pAT) /* WCC attributes */
665
666 static struct svc_procedure nfsd_procedures3[22] = {
667 [NFS3PROC_NULL] = {
668 .pc_func = (svc_procfunc) nfsd3_proc_null,
669 .pc_encode = (kxdrproc_t) nfs3svc_encode_voidres,
670 .pc_argsize = sizeof(struct nfsd3_voidargs),
671 .pc_ressize = sizeof(struct nfsd3_voidres),
672 .pc_cachetype = RC_NOCACHE,
673 .pc_xdrressize = ST,
674 },
675 [NFS3PROC_GETATTR] = {
676 .pc_func = (svc_procfunc) nfsd3_proc_getattr,
677 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
678 .pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres,
679 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
680 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
681 .pc_ressize = sizeof(struct nfsd3_attrstatres),
682 .pc_cachetype = RC_NOCACHE,
683 .pc_xdrressize = ST+AT,
684 },
685 [NFS3PROC_SETATTR] = {
686 .pc_func = (svc_procfunc) nfsd3_proc_setattr,
687 .pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs,
688 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
689 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
690 .pc_argsize = sizeof(struct nfsd3_sattrargs),
691 .pc_ressize = sizeof(struct nfsd3_wccstatres),
692 .pc_cachetype = RC_REPLBUFF,
693 .pc_xdrressize = ST+WC,
694 },
695 [NFS3PROC_LOOKUP] = {
696 .pc_func = (svc_procfunc) nfsd3_proc_lookup,
697 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
698 .pc_encode = (kxdrproc_t) nfs3svc_encode_diropres,
699 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
700 .pc_argsize = sizeof(struct nfsd3_diropargs),
701 .pc_ressize = sizeof(struct nfsd3_diropres),
702 .pc_cachetype = RC_NOCACHE,
703 .pc_xdrressize = ST+FH+pAT+pAT,
704 },
705 [NFS3PROC_ACCESS] = {
706 .pc_func = (svc_procfunc) nfsd3_proc_access,
707 .pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs,
708 .pc_encode = (kxdrproc_t) nfs3svc_encode_accessres,
709 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
710 .pc_argsize = sizeof(struct nfsd3_accessargs),
711 .pc_ressize = sizeof(struct nfsd3_accessres),
712 .pc_cachetype = RC_NOCACHE,
713 .pc_xdrressize = ST+pAT+1,
714 },
715 [NFS3PROC_READLINK] = {
716 .pc_func = (svc_procfunc) nfsd3_proc_readlink,
717 .pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs,
718 .pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres,
719 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
720 .pc_argsize = sizeof(struct nfsd3_readlinkargs),
721 .pc_ressize = sizeof(struct nfsd3_readlinkres),
722 .pc_cachetype = RC_NOCACHE,
723 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
724 },
725 [NFS3PROC_READ] = {
726 .pc_func = (svc_procfunc) nfsd3_proc_read,
727 .pc_decode = (kxdrproc_t) nfs3svc_decode_readargs,
728 .pc_encode = (kxdrproc_t) nfs3svc_encode_readres,
729 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
730 .pc_argsize = sizeof(struct nfsd3_readargs),
731 .pc_ressize = sizeof(struct nfsd3_readres),
732 .pc_cachetype = RC_NOCACHE,
733 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
734 },
735 [NFS3PROC_WRITE] = {
736 .pc_func = (svc_procfunc) nfsd3_proc_write,
737 .pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs,
738 .pc_encode = (kxdrproc_t) nfs3svc_encode_writeres,
739 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
740 .pc_argsize = sizeof(struct nfsd3_writeargs),
741 .pc_ressize = sizeof(struct nfsd3_writeres),
742 .pc_cachetype = RC_REPLBUFF,
743 .pc_xdrressize = ST+WC+4,
744 },
745 [NFS3PROC_CREATE] = {
746 .pc_func = (svc_procfunc) nfsd3_proc_create,
747 .pc_decode = (kxdrproc_t) nfs3svc_decode_createargs,
748 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
749 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
750 .pc_argsize = sizeof(struct nfsd3_createargs),
751 .pc_ressize = sizeof(struct nfsd3_createres),
752 .pc_cachetype = RC_REPLBUFF,
753 .pc_xdrressize = ST+(1+FH+pAT)+WC,
754 },
755 [NFS3PROC_MKDIR] = {
756 .pc_func = (svc_procfunc) nfsd3_proc_mkdir,
757 .pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs,
758 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
759 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
760 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
761 .pc_ressize = sizeof(struct nfsd3_createres),
762 .pc_cachetype = RC_REPLBUFF,
763 .pc_xdrressize = ST+(1+FH+pAT)+WC,
764 },
765 [NFS3PROC_SYMLINK] = {
766 .pc_func = (svc_procfunc) nfsd3_proc_symlink,
767 .pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs,
768 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
769 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
770 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
771 .pc_ressize = sizeof(struct nfsd3_createres),
772 .pc_cachetype = RC_REPLBUFF,
773 .pc_xdrressize = ST+(1+FH+pAT)+WC,
774 },
775 [NFS3PROC_MKNOD] = {
776 .pc_func = (svc_procfunc) nfsd3_proc_mknod,
777 .pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs,
778 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
779 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
780 .pc_argsize = sizeof(struct nfsd3_mknodargs),
781 .pc_ressize = sizeof(struct nfsd3_createres),
782 .pc_cachetype = RC_REPLBUFF,
783 .pc_xdrressize = ST+(1+FH+pAT)+WC,
784 },
785 [NFS3PROC_REMOVE] = {
786 .pc_func = (svc_procfunc) nfsd3_proc_remove,
787 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
788 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
789 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
790 .pc_argsize = sizeof(struct nfsd3_diropargs),
791 .pc_ressize = sizeof(struct nfsd3_wccstatres),
792 .pc_cachetype = RC_REPLBUFF,
793 .pc_xdrressize = ST+WC,
794 },
795 [NFS3PROC_RMDIR] = {
796 .pc_func = (svc_procfunc) nfsd3_proc_rmdir,
797 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
798 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
799 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
800 .pc_argsize = sizeof(struct nfsd3_diropargs),
801 .pc_ressize = sizeof(struct nfsd3_wccstatres),
802 .pc_cachetype = RC_REPLBUFF,
803 .pc_xdrressize = ST+WC,
804 },
805 [NFS3PROC_RENAME] = {
806 .pc_func = (svc_procfunc) nfsd3_proc_rename,
807 .pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs,
808 .pc_encode = (kxdrproc_t) nfs3svc_encode_renameres,
809 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
810 .pc_argsize = sizeof(struct nfsd3_renameargs),
811 .pc_ressize = sizeof(struct nfsd3_renameres),
812 .pc_cachetype = RC_REPLBUFF,
813 .pc_xdrressize = ST+WC+WC,
814 },
815 [NFS3PROC_LINK] = {
816 .pc_func = (svc_procfunc) nfsd3_proc_link,
817 .pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs,
818 .pc_encode = (kxdrproc_t) nfs3svc_encode_linkres,
819 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
820 .pc_argsize = sizeof(struct nfsd3_linkargs),
821 .pc_ressize = sizeof(struct nfsd3_linkres),
822 .pc_cachetype = RC_REPLBUFF,
823 .pc_xdrressize = ST+pAT+WC,
824 },
825 [NFS3PROC_READDIR] = {
826 .pc_func = (svc_procfunc) nfsd3_proc_readdir,
827 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs,
828 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
829 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
830 .pc_argsize = sizeof(struct nfsd3_readdirargs),
831 .pc_ressize = sizeof(struct nfsd3_readdirres),
832 .pc_cachetype = RC_NOCACHE,
833 },
834 [NFS3PROC_READDIRPLUS] = {
835 .pc_func = (svc_procfunc) nfsd3_proc_readdirplus,
836 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs,
837 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
838 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
839 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
840 .pc_ressize = sizeof(struct nfsd3_readdirres),
841 .pc_cachetype = RC_NOCACHE,
842 },
843 [NFS3PROC_FSSTAT] = {
844 .pc_func = (svc_procfunc) nfsd3_proc_fsstat,
845 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
846 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres,
847 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
848 .pc_ressize = sizeof(struct nfsd3_fsstatres),
849 .pc_cachetype = RC_NOCACHE,
850 .pc_xdrressize = ST+pAT+2*6+1,
851 },
852 [NFS3PROC_FSINFO] = {
853 .pc_func = (svc_procfunc) nfsd3_proc_fsinfo,
854 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
855 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores,
856 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
857 .pc_ressize = sizeof(struct nfsd3_fsinfores),
858 .pc_cachetype = RC_NOCACHE,
859 .pc_xdrressize = ST+pAT+12,
860 },
861 [NFS3PROC_PATHCONF] = {
862 .pc_func = (svc_procfunc) nfsd3_proc_pathconf,
863 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
864 .pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres,
865 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
866 .pc_ressize = sizeof(struct nfsd3_pathconfres),
867 .pc_cachetype = RC_NOCACHE,
868 .pc_xdrressize = ST+pAT+6,
869 },
870 [NFS3PROC_COMMIT] = {
871 .pc_func = (svc_procfunc) nfsd3_proc_commit,
872 .pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs,
873 .pc_encode = (kxdrproc_t) nfs3svc_encode_commitres,
874 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
875 .pc_argsize = sizeof(struct nfsd3_commitargs),
876 .pc_ressize = sizeof(struct nfsd3_commitres),
877 .pc_cachetype = RC_NOCACHE,
878 .pc_xdrressize = ST+WC+2,
879 },
880 };
881
882 struct svc_version nfsd_version3 = {
883 .vs_vers = 3,
884 .vs_nproc = 22,
885 .vs_proc = nfsd_procedures3,
886 .vs_dispatch = nfsd_dispatch,
887 .vs_xdrsize = NFS3_SVC_XDRSIZE,
888 };
Linux kernel - Deliverables
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