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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
19static 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 */
33static __be32
34nfsd3_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 */
42static __be32
43nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
44 struct nfsd3_attrstat *resp)
45{
46 int err;
47 __be32 nfserr;
48
49 dprintk("nfsd: GETATTR(3) %s\n",
50 SVCFH_fmt(&argp->fh));
51
52 fh_copy(&resp->fh, &argp->fh);
53 nfserr = fh_verify(rqstp, &resp->fh, 0,
54 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
55 if (nfserr)
56 RETURN_STATUS(nfserr);
57
58 err = vfs_getattr(resp->fh.fh_export->ex_path.mnt,
59 resp->fh.fh_dentry, &resp->stat);
60 nfserr = nfserrno(err);
61
62 RETURN_STATUS(nfserr);
63}
64
65/*
66 * Set a file's attributes
67 */
68static __be32
69nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
70 struct nfsd3_attrstat *resp)
71{
72 __be32 nfserr;
73
74 dprintk("nfsd: SETATTR(3) %s\n",
75 SVCFH_fmt(&argp->fh));
76
77 fh_copy(&resp->fh, &argp->fh);
78 nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
79 argp->check_guard, argp->guardtime);
80 RETURN_STATUS(nfserr);
81}
82
83/*
84 * Look up a path name component
85 */
86static __be32
87nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
88 struct nfsd3_diropres *resp)
89{
90 __be32 nfserr;
91
92 dprintk("nfsd: LOOKUP(3) %s %.*s\n",
93 SVCFH_fmt(&argp->fh),
94 argp->len,
95 argp->name);
96
97 fh_copy(&resp->dirfh, &argp->fh);
98 fh_init(&resp->fh, NFS3_FHSIZE);
99
100 nfserr = nfsd_lookup(rqstp, &resp->dirfh,
101 argp->name,
102 argp->len,
103 &resp->fh);
104 RETURN_STATUS(nfserr);
105}
106
107/*
108 * Check file access
109 */
110static __be32
111nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
112 struct nfsd3_accessres *resp)
113{
114 __be32 nfserr;
115
116 dprintk("nfsd: ACCESS(3) %s 0x%x\n",
117 SVCFH_fmt(&argp->fh),
118 argp->access);
119
120 fh_copy(&resp->fh, &argp->fh);
121 resp->access = argp->access;
122 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
123 RETURN_STATUS(nfserr);
124}
125
126/*
127 * Read a symlink.
128 */
129static __be32
130nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
131 struct nfsd3_readlinkres *resp)
132{
133 __be32 nfserr;
134
135 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
136
137 /* Read the symlink. */
138 fh_copy(&resp->fh, &argp->fh);
139 resp->len = NFS3_MAXPATHLEN;
140 nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
141 RETURN_STATUS(nfserr);
142}
143
144/*
145 * Read a portion of a file.
146 */
147static __be32
148nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
149 struct nfsd3_readres *resp)
150{
151 __be32 nfserr;
152 u32 max_blocksize = svc_max_payload(rqstp);
153
154 dprintk("nfsd: READ(3) %s %lu bytes at %Lu\n",
155 SVCFH_fmt(&argp->fh),
156 (unsigned long) argp->count,
157 (unsigned long long) argp->offset);
158
159 /* Obtain buffer pointer for payload.
160 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
161 * + 1 (xdr opaque byte count) = 26
162 */
163
164 resp->count = argp->count;
165 if (max_blocksize < resp->count)
166 resp->count = max_blocksize;
167
168 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
169
170 fh_copy(&resp->fh, &argp->fh);
171 nfserr = nfsd_read(rqstp, &resp->fh,
172 argp->offset,
173 rqstp->rq_vec, argp->vlen,
174 &resp->count);
175 if (nfserr == 0) {
176 struct inode *inode = resp->fh.fh_dentry->d_inode;
177
178 resp->eof = (argp->offset + resp->count) >= inode->i_size;
179 }
180
181 RETURN_STATUS(nfserr);
182}
183
184/*
185 * Write data to a file
186 */
187static __be32
188nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
189 struct nfsd3_writeres *resp)
190{
191 __be32 nfserr;
192 unsigned long cnt = argp->len;
193
194 dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
195 SVCFH_fmt(&argp->fh),
196 argp->len,
197 (unsigned long long) argp->offset,
198 argp->stable? " stable" : "");
199
200 fh_copy(&resp->fh, &argp->fh);
201 resp->committed = argp->stable;
202 nfserr = nfsd_write(rqstp, &resp->fh, NULL,
203 argp->offset,
204 rqstp->rq_vec, argp->vlen,
205 &cnt,
206 &resp->committed);
207 resp->count = cnt;
208 RETURN_STATUS(nfserr);
209}
210
211/*
212 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
213 * At least in theory; we'll see how it fares in practice when the
214 * first reports about SunOS compatibility problems start to pour in...
215 */
216static __be32
217nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
218 struct nfsd3_diropres *resp)
219{
220 svc_fh *dirfhp, *newfhp = NULL;
221 struct iattr *attr;
222 __be32 nfserr;
223
224 dprintk("nfsd: CREATE(3) %s %.*s\n",
225 SVCFH_fmt(&argp->fh),
226 argp->len,
227 argp->name);
228
229 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
230 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
231 attr = &argp->attrs;
232
233 /* Get the directory inode */
234 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_CREATE);
235 if (nfserr)
236 RETURN_STATUS(nfserr);
237
238 /* Unfudge the mode bits */
239 attr->ia_mode &= ~S_IFMT;
240 if (!(attr->ia_valid & ATTR_MODE)) {
241 attr->ia_valid |= ATTR_MODE;
242 attr->ia_mode = S_IFREG;
243 } else {
244 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
245 }
246
247 /* Now create the file and set attributes */
248 nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
249 attr, newfhp,
250 argp->createmode, argp->verf, NULL, NULL);
251
252 RETURN_STATUS(nfserr);
253}
254
255/*
256 * Make directory. This operation is not idempotent.
257 */
258static __be32
259nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
260 struct nfsd3_diropres *resp)
261{
262 __be32 nfserr;
263
264 dprintk("nfsd: MKDIR(3) %s %.*s\n",
265 SVCFH_fmt(&argp->fh),
266 argp->len,
267 argp->name);
268
269 argp->attrs.ia_valid &= ~ATTR_SIZE;
270 fh_copy(&resp->dirfh, &argp->fh);
271 fh_init(&resp->fh, NFS3_FHSIZE);
272 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
273 &argp->attrs, S_IFDIR, 0, &resp->fh);
274 fh_unlock(&resp->dirfh);
275 RETURN_STATUS(nfserr);
276}
277
278static __be32
279nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
280 struct nfsd3_diropres *resp)
281{
282 __be32 nfserr;
283
284 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
285 SVCFH_fmt(&argp->ffh),
286 argp->flen, argp->fname,
287 argp->tlen, argp->tname);
288
289 fh_copy(&resp->dirfh, &argp->ffh);
290 fh_init(&resp->fh, NFS3_FHSIZE);
291 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
292 argp->tname, argp->tlen,
293 &resp->fh, &argp->attrs);
294 RETURN_STATUS(nfserr);
295}
296
297/*
298 * Make socket/fifo/device.
299 */
300static __be32
301nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
302 struct nfsd3_diropres *resp)
303{
304 __be32 nfserr;
305 int type;
306 dev_t rdev = 0;
307
308 dprintk("nfsd: MKNOD(3) %s %.*s\n",
309 SVCFH_fmt(&argp->fh),
310 argp->len,
311 argp->name);
312
313 fh_copy(&resp->dirfh, &argp->fh);
314 fh_init(&resp->fh, NFS3_FHSIZE);
315
316 if (argp->ftype == 0 || argp->ftype >= NF3BAD)
317 RETURN_STATUS(nfserr_inval);
318 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
319 rdev = MKDEV(argp->major, argp->minor);
320 if (MAJOR(rdev) != argp->major ||
321 MINOR(rdev) != argp->minor)
322 RETURN_STATUS(nfserr_inval);
323 } else
324 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
325 RETURN_STATUS(nfserr_inval);
326
327 type = nfs3_ftypes[argp->ftype];
328 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
329 &argp->attrs, type, rdev, &resp->fh);
330 fh_unlock(&resp->dirfh);
331 RETURN_STATUS(nfserr);
332}
333
334/*
335 * Remove file/fifo/socket etc.
336 */
337static __be32
338nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
339 struct nfsd3_attrstat *resp)
340{
341 __be32 nfserr;
342
343 dprintk("nfsd: REMOVE(3) %s %.*s\n",
344 SVCFH_fmt(&argp->fh),
345 argp->len,
346 argp->name);
347
348 /* Unlink. -S_IFDIR means file must not be a directory */
349 fh_copy(&resp->fh, &argp->fh);
350 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
351 fh_unlock(&resp->fh);
352 RETURN_STATUS(nfserr);
353}
354
355/*
356 * Remove a directory
357 */
358static __be32
359nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
360 struct nfsd3_attrstat *resp)
361{
362 __be32 nfserr;
363
364 dprintk("nfsd: RMDIR(3) %s %.*s\n",
365 SVCFH_fmt(&argp->fh),
366 argp->len,
367 argp->name);
368
369 fh_copy(&resp->fh, &argp->fh);
370 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
371 fh_unlock(&resp->fh);
372 RETURN_STATUS(nfserr);
373}
374
375static __be32
376nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
377 struct nfsd3_renameres *resp)
378{
379 __be32 nfserr;
380
381 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
382 SVCFH_fmt(&argp->ffh),
383 argp->flen,
384 argp->fname);
385 dprintk("nfsd: -> %s %.*s\n",
386 SVCFH_fmt(&argp->tfh),
387 argp->tlen,
388 argp->tname);
389
390 fh_copy(&resp->ffh, &argp->ffh);
391 fh_copy(&resp->tfh, &argp->tfh);
392 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
393 &resp->tfh, argp->tname, argp->tlen);
394 RETURN_STATUS(nfserr);
395}
396
397static __be32
398nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
399 struct nfsd3_linkres *resp)
400{
401 __be32 nfserr;
402
403 dprintk("nfsd: LINK(3) %s ->\n",
404 SVCFH_fmt(&argp->ffh));
405 dprintk("nfsd: -> %s %.*s\n",
406 SVCFH_fmt(&argp->tfh),
407 argp->tlen,
408 argp->tname);
409
410 fh_copy(&resp->fh, &argp->ffh);
411 fh_copy(&resp->tfh, &argp->tfh);
412 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
413 &resp->fh);
414 RETURN_STATUS(nfserr);
415}
416
417/*
418 * Read a portion of a directory.
419 */
420static __be32
421nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
422 struct nfsd3_readdirres *resp)
423{
424 __be32 nfserr;
425 int count;
426
427 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
428 SVCFH_fmt(&argp->fh),
429 argp->count, (u32) argp->cookie);
430
431 /* Make sure we've room for the NULL ptr & eof flag, and shrink to
432 * client read size */
433 count = (argp->count >> 2) - 2;
434
435 /* Read directory and encode entries on the fly */
436 fh_copy(&resp->fh, &argp->fh);
437
438 resp->buflen = count;
439 resp->common.err = nfs_ok;
440 resp->buffer = argp->buffer;
441 resp->rqstp = rqstp;
442 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie,
443 &resp->common, nfs3svc_encode_entry);
444 memcpy(resp->verf, argp->verf, 8);
445 resp->count = resp->buffer - argp->buffer;
446 if (resp->offset)
447 xdr_encode_hyper(resp->offset, argp->cookie);
448
449 RETURN_STATUS(nfserr);
450}
451
452/*
453 * Read a portion of a directory, including file handles and attrs.
454 * For now, we choose to ignore the dircount parameter.
455 */
456static __be32
457nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
458 struct nfsd3_readdirres *resp)
459{
460 __be32 nfserr;
461 int count = 0;
462 loff_t offset;
463 int i;
464 caddr_t page_addr = NULL;
465
466 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
467 SVCFH_fmt(&argp->fh),
468 argp->count, (u32) argp->cookie);
469
470 /* Convert byte count to number of words (i.e. >> 2),
471 * and reserve room for the NULL ptr & eof flag (-2 words) */
472 resp->count = (argp->count >> 2) - 2;
473
474 /* Read directory and encode entries on the fly */
475 fh_copy(&resp->fh, &argp->fh);
476
477 resp->common.err = nfs_ok;
478 resp->buffer = argp->buffer;
479 resp->buflen = resp->count;
480 resp->rqstp = rqstp;
481 offset = argp->cookie;
482 nfserr = nfsd_readdir(rqstp, &resp->fh,
483 &offset,
484 &resp->common,
485 nfs3svc_encode_entry_plus);
486 memcpy(resp->verf, argp->verf, 8);
487 for (i=1; i<rqstp->rq_resused ; i++) {
488 page_addr = page_address(rqstp->rq_respages[i]);
489
490 if (((caddr_t)resp->buffer >= page_addr) &&
491 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
492 count += (caddr_t)resp->buffer - page_addr;
493 break;
494 }
495 count += PAGE_SIZE;
496 }
497 resp->count = count >> 2;
498 if (resp->offset) {
499 if (unlikely(resp->offset1)) {
500 /* we ended up with offset on a page boundary */
501 *resp->offset = htonl(offset >> 32);
502 *resp->offset1 = htonl(offset & 0xffffffff);
503 resp->offset1 = NULL;
504 } else {
505 xdr_encode_hyper(resp->offset, offset);
506 }
507 }
508
509 RETURN_STATUS(nfserr);
510}
511
512/*
513 * Get file system stats
514 */
515static __be32
516nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
517 struct nfsd3_fsstatres *resp)
518{
519 __be32 nfserr;
520
521 dprintk("nfsd: FSSTAT(3) %s\n",
522 SVCFH_fmt(&argp->fh));
523
524 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
525 fh_put(&argp->fh);
526 RETURN_STATUS(nfserr);
527}
528
529/*
530 * Get file system info
531 */
532static __be32
533nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
534 struct nfsd3_fsinfores *resp)
535{
536 __be32 nfserr;
537 u32 max_blocksize = svc_max_payload(rqstp);
538
539 dprintk("nfsd: FSINFO(3) %s\n",
540 SVCFH_fmt(&argp->fh));
541
542 resp->f_rtmax = max_blocksize;
543 resp->f_rtpref = max_blocksize;
544 resp->f_rtmult = PAGE_SIZE;
545 resp->f_wtmax = max_blocksize;
546 resp->f_wtpref = max_blocksize;
547 resp->f_wtmult = PAGE_SIZE;
548 resp->f_dtpref = PAGE_SIZE;
549 resp->f_maxfilesize = ~(u32) 0;
550 resp->f_properties = NFS3_FSF_DEFAULT;
551
552 nfserr = fh_verify(rqstp, &argp->fh, 0,
553 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
554
555 /* Check special features of the file system. May request
556 * different read/write sizes for file systems known to have
557 * problems with large blocks */
558 if (nfserr == 0) {
559 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
560
561 /* Note that we don't care for remote fs's here */
562 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
563 resp->f_properties = NFS3_FSF_BILLYBOY;
564 }
565 resp->f_maxfilesize = sb->s_maxbytes;
566 }
567
568 fh_put(&argp->fh);
569 RETURN_STATUS(nfserr);
570}
571
572/*
573 * Get pathconf info for the specified file
574 */
575static __be32
576nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
577 struct nfsd3_pathconfres *resp)
578{
579 __be32 nfserr;
580
581 dprintk("nfsd: PATHCONF(3) %s\n",
582 SVCFH_fmt(&argp->fh));
583
584 /* Set default pathconf */
585 resp->p_link_max = 255; /* at least */
586 resp->p_name_max = 255; /* at least */
587 resp->p_no_trunc = 0;
588 resp->p_chown_restricted = 1;
589 resp->p_case_insensitive = 0;
590 resp->p_case_preserving = 1;
591
592 nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
593
594 if (nfserr == 0) {
595 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
596
597 /* Note that we don't care for remote fs's here */
598 switch (sb->s_magic) {
599 case EXT2_SUPER_MAGIC:
600 resp->p_link_max = EXT2_LINK_MAX;
601 resp->p_name_max = EXT2_NAME_LEN;
602 break;
603 case MSDOS_SUPER_MAGIC:
604 resp->p_case_insensitive = 1;
605 resp->p_case_preserving = 0;
606 break;
607 }
608 }
609
610 fh_put(&argp->fh);
611 RETURN_STATUS(nfserr);
612}
613
614
615/*
616 * Commit a file (range) to stable storage.
617 */
618static __be32
619nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
620 struct nfsd3_commitres *resp)
621{
622 __be32 nfserr;
623
624 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
625 SVCFH_fmt(&argp->fh),
626 argp->count,
627 (unsigned long long) argp->offset);
628
629 if (argp->offset > NFS_OFFSET_MAX)
630 RETURN_STATUS(nfserr_inval);
631
632 fh_copy(&resp->fh, &argp->fh);
633 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count);
634
635 RETURN_STATUS(nfserr);
636}
637
638
639/*
640 * NFSv3 Server procedures.
641 * Only the results of non-idempotent operations are cached.
642 */
643#define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle
644#define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
645#define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
646#define nfsd3_mkdirargs nfsd3_createargs
647#define nfsd3_readdirplusargs nfsd3_readdirargs
648#define nfsd3_fhandleargs nfsd_fhandle
649#define nfsd3_fhandleres nfsd3_attrstat
650#define nfsd3_attrstatres nfsd3_attrstat
651#define nfsd3_wccstatres nfsd3_attrstat
652#define nfsd3_createres nfsd3_diropres
653#define nfsd3_voidres nfsd3_voidargs
654struct nfsd3_voidargs { int dummy; };
655
656#define PROC(name, argt, rest, relt, cache, respsize) \
657 { (svc_procfunc) nfsd3_proc_##name, \
658 (kxdrproc_t) nfs3svc_decode_##argt##args, \
659 (kxdrproc_t) nfs3svc_encode_##rest##res, \
660 (kxdrproc_t) nfs3svc_release_##relt, \
661 sizeof(struct nfsd3_##argt##args), \
662 sizeof(struct nfsd3_##rest##res), \
663 0, \
664 cache, \
665 respsize, \
666 }
667
668#define ST 1 /* status*/
669#define FH 17 /* filehandle with length */
670#define AT 21 /* attributes */
671#define pAT (1+AT) /* post attributes - conditional */
672#define WC (7+pAT) /* WCC attributes */
673
674static struct svc_procedure nfsd_procedures3[22] = {
675 [NFS3PROC_NULL] = {
676 .pc_func = (svc_procfunc) nfsd3_proc_null,
677 .pc_encode = (kxdrproc_t) nfs3svc_encode_voidres,
678 .pc_argsize = sizeof(struct nfsd3_voidargs),
679 .pc_ressize = sizeof(struct nfsd3_voidres),
680 .pc_cachetype = RC_NOCACHE,
681 .pc_xdrressize = ST,
682 },
683 [NFS3PROC_GETATTR] = {
684 .pc_func = (svc_procfunc) nfsd3_proc_getattr,
685 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
686 .pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres,
687 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
688 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
689 .pc_ressize = sizeof(struct nfsd3_attrstatres),
690 .pc_cachetype = RC_NOCACHE,
691 .pc_xdrressize = ST+AT,
692 },
693 [NFS3PROC_SETATTR] = {
694 .pc_func = (svc_procfunc) nfsd3_proc_setattr,
695 .pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs,
696 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
697 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
698 .pc_argsize = sizeof(struct nfsd3_sattrargs),
699 .pc_ressize = sizeof(struct nfsd3_wccstatres),
700 .pc_cachetype = RC_REPLBUFF,
701 .pc_xdrressize = ST+WC,
702 },
703 [NFS3PROC_LOOKUP] = {
704 .pc_func = (svc_procfunc) nfsd3_proc_lookup,
705 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
706 .pc_encode = (kxdrproc_t) nfs3svc_encode_diropres,
707 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
708 .pc_argsize = sizeof(struct nfsd3_diropargs),
709 .pc_ressize = sizeof(struct nfsd3_diropres),
710 .pc_cachetype = RC_NOCACHE,
711 .pc_xdrressize = ST+FH+pAT+pAT,
712 },
713 [NFS3PROC_ACCESS] = {
714 .pc_func = (svc_procfunc) nfsd3_proc_access,
715 .pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs,
716 .pc_encode = (kxdrproc_t) nfs3svc_encode_accessres,
717 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
718 .pc_argsize = sizeof(struct nfsd3_accessargs),
719 .pc_ressize = sizeof(struct nfsd3_accessres),
720 .pc_cachetype = RC_NOCACHE,
721 .pc_xdrressize = ST+pAT+1,
722 },
723 [NFS3PROC_READLINK] = {
724 .pc_func = (svc_procfunc) nfsd3_proc_readlink,
725 .pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs,
726 .pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres,
727 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
728 .pc_argsize = sizeof(struct nfsd3_readlinkargs),
729 .pc_ressize = sizeof(struct nfsd3_readlinkres),
730 .pc_cachetype = RC_NOCACHE,
731 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
732 },
733 [NFS3PROC_READ] = {
734 .pc_func = (svc_procfunc) nfsd3_proc_read,
735 .pc_decode = (kxdrproc_t) nfs3svc_decode_readargs,
736 .pc_encode = (kxdrproc_t) nfs3svc_encode_readres,
737 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
738 .pc_argsize = sizeof(struct nfsd3_readargs),
739 .pc_ressize = sizeof(struct nfsd3_readres),
740 .pc_cachetype = RC_NOCACHE,
741 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
742 },
743 [NFS3PROC_WRITE] = {
744 .pc_func = (svc_procfunc) nfsd3_proc_write,
745 .pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs,
746 .pc_encode = (kxdrproc_t) nfs3svc_encode_writeres,
747 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
748 .pc_argsize = sizeof(struct nfsd3_writeargs),
749 .pc_ressize = sizeof(struct nfsd3_writeres),
750 .pc_cachetype = RC_REPLBUFF,
751 .pc_xdrressize = ST+WC+4,
752 },
753 [NFS3PROC_CREATE] = {
754 .pc_func = (svc_procfunc) nfsd3_proc_create,
755 .pc_decode = (kxdrproc_t) nfs3svc_decode_createargs,
756 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
757 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
758 .pc_argsize = sizeof(struct nfsd3_createargs),
759 .pc_ressize = sizeof(struct nfsd3_createres),
760 .pc_cachetype = RC_REPLBUFF,
761 .pc_xdrressize = ST+(1+FH+pAT)+WC,
762 },
763 [NFS3PROC_MKDIR] = {
764 .pc_func = (svc_procfunc) nfsd3_proc_mkdir,
765 .pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs,
766 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
767 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
768 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
769 .pc_ressize = sizeof(struct nfsd3_createres),
770 .pc_cachetype = RC_REPLBUFF,
771 .pc_xdrressize = ST+(1+FH+pAT)+WC,
772 },
773 [NFS3PROC_SYMLINK] = {
774 .pc_func = (svc_procfunc) nfsd3_proc_symlink,
775 .pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs,
776 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
777 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
778 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
779 .pc_ressize = sizeof(struct nfsd3_createres),
780 .pc_cachetype = RC_REPLBUFF,
781 .pc_xdrressize = ST+(1+FH+pAT)+WC,
782 },
783 [NFS3PROC_MKNOD] = {
784 .pc_func = (svc_procfunc) nfsd3_proc_mknod,
785 .pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs,
786 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
787 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
788 .pc_argsize = sizeof(struct nfsd3_mknodargs),
789 .pc_ressize = sizeof(struct nfsd3_createres),
790 .pc_cachetype = RC_REPLBUFF,
791 .pc_xdrressize = ST+(1+FH+pAT)+WC,
792 },
793 [NFS3PROC_REMOVE] = {
794 .pc_func = (svc_procfunc) nfsd3_proc_remove,
795 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
796 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
797 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
798 .pc_argsize = sizeof(struct nfsd3_diropargs),
799 .pc_ressize = sizeof(struct nfsd3_wccstatres),
800 .pc_cachetype = RC_REPLBUFF,
801 .pc_xdrressize = ST+WC,
802 },
803 [NFS3PROC_RMDIR] = {
804 .pc_func = (svc_procfunc) nfsd3_proc_rmdir,
805 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
806 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
807 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
808 .pc_argsize = sizeof(struct nfsd3_diropargs),
809 .pc_ressize = sizeof(struct nfsd3_wccstatres),
810 .pc_cachetype = RC_REPLBUFF,
811 .pc_xdrressize = ST+WC,
812 },
813 [NFS3PROC_RENAME] = {
814 .pc_func = (svc_procfunc) nfsd3_proc_rename,
815 .pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs,
816 .pc_encode = (kxdrproc_t) nfs3svc_encode_renameres,
817 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
818 .pc_argsize = sizeof(struct nfsd3_renameargs),
819 .pc_ressize = sizeof(struct nfsd3_renameres),
820 .pc_cachetype = RC_REPLBUFF,
821 .pc_xdrressize = ST+WC+WC,
822 },
823 [NFS3PROC_LINK] = {
824 .pc_func = (svc_procfunc) nfsd3_proc_link,
825 .pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs,
826 .pc_encode = (kxdrproc_t) nfs3svc_encode_linkres,
827 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
828 .pc_argsize = sizeof(struct nfsd3_linkargs),
829 .pc_ressize = sizeof(struct nfsd3_linkres),
830 .pc_cachetype = RC_REPLBUFF,
831 .pc_xdrressize = ST+pAT+WC,
832 },
833 [NFS3PROC_READDIR] = {
834 .pc_func = (svc_procfunc) nfsd3_proc_readdir,
835 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs,
836 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
837 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
838 .pc_argsize = sizeof(struct nfsd3_readdirargs),
839 .pc_ressize = sizeof(struct nfsd3_readdirres),
840 .pc_cachetype = RC_NOCACHE,
841 },
842 [NFS3PROC_READDIRPLUS] = {
843 .pc_func = (svc_procfunc) nfsd3_proc_readdirplus,
844 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs,
845 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
846 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
847 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
848 .pc_ressize = sizeof(struct nfsd3_readdirres),
849 .pc_cachetype = RC_NOCACHE,
850 },
851 [NFS3PROC_FSSTAT] = {
852 .pc_func = (svc_procfunc) nfsd3_proc_fsstat,
853 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
854 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres,
855 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
856 .pc_ressize = sizeof(struct nfsd3_fsstatres),
857 .pc_cachetype = RC_NOCACHE,
858 .pc_xdrressize = ST+pAT+2*6+1,
859 },
860 [NFS3PROC_FSINFO] = {
861 .pc_func = (svc_procfunc) nfsd3_proc_fsinfo,
862 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
863 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores,
864 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
865 .pc_ressize = sizeof(struct nfsd3_fsinfores),
866 .pc_cachetype = RC_NOCACHE,
867 .pc_xdrressize = ST+pAT+12,
868 },
869 [NFS3PROC_PATHCONF] = {
870 .pc_func = (svc_procfunc) nfsd3_proc_pathconf,
871 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
872 .pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres,
873 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
874 .pc_ressize = sizeof(struct nfsd3_pathconfres),
875 .pc_cachetype = RC_NOCACHE,
876 .pc_xdrressize = ST+pAT+6,
877 },
878 [NFS3PROC_COMMIT] = {
879 .pc_func = (svc_procfunc) nfsd3_proc_commit,
880 .pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs,
881 .pc_encode = (kxdrproc_t) nfs3svc_encode_commitres,
882 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
883 .pc_argsize = sizeof(struct nfsd3_commitargs),
884 .pc_ressize = sizeof(struct nfsd3_commitres),
885 .pc_cachetype = RC_NOCACHE,
886 .pc_xdrressize = ST+WC+2,
887 },
888};
889
890struct svc_version nfsd_version3 = {
891 .vs_vers = 3,
892 .vs_nproc = 22,
893 .vs_proc = nfsd_procedures3,
894 .vs_dispatch = nfsd_dispatch,
895 .vs_xdrsize = NFS3_SVC_XDRSIZE,
896};
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Process version 3 NFS requests.
4 *
5 * Copyright (C) 1996, 1997, 1998 Olaf Kirch <okir@monad.swb.de>
6 */
7
8#include <linux/fs.h>
9#include <linux/ext2_fs.h>
10#include <linux/magic.h>
11
12#include "cache.h"
13#include "xdr3.h"
14#include "vfs.h"
15
16#define NFSDDBG_FACILITY NFSDDBG_PROC
17
18static int nfs3_ftypes[] = {
19 0, /* NF3NON */
20 S_IFREG, /* NF3REG */
21 S_IFDIR, /* NF3DIR */
22 S_IFBLK, /* NF3BLK */
23 S_IFCHR, /* NF3CHR */
24 S_IFLNK, /* NF3LNK */
25 S_IFSOCK, /* NF3SOCK */
26 S_IFIFO, /* NF3FIFO */
27};
28
29/*
30 * NULL call.
31 */
32static __be32
33nfsd3_proc_null(struct svc_rqst *rqstp)
34{
35 return rpc_success;
36}
37
38/*
39 * Get a file's attributes
40 */
41static __be32
42nfsd3_proc_getattr(struct svc_rqst *rqstp)
43{
44 struct nfsd_fhandle *argp = rqstp->rq_argp;
45 struct nfsd3_attrstat *resp = rqstp->rq_resp;
46
47 dprintk("nfsd: GETATTR(3) %s\n",
48 SVCFH_fmt(&argp->fh));
49
50 fh_copy(&resp->fh, &argp->fh);
51 resp->status = fh_verify(rqstp, &resp->fh, 0,
52 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
53 if (resp->status != nfs_ok)
54 goto out;
55
56 resp->status = fh_getattr(&resp->fh, &resp->stat);
57out:
58 return rpc_success;
59}
60
61/*
62 * Set a file's attributes
63 */
64static __be32
65nfsd3_proc_setattr(struct svc_rqst *rqstp)
66{
67 struct nfsd3_sattrargs *argp = rqstp->rq_argp;
68 struct nfsd3_attrstat *resp = rqstp->rq_resp;
69
70 dprintk("nfsd: SETATTR(3) %s\n",
71 SVCFH_fmt(&argp->fh));
72
73 fh_copy(&resp->fh, &argp->fh);
74 resp->status = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
75 argp->check_guard, argp->guardtime);
76 return rpc_success;
77}
78
79/*
80 * Look up a path name component
81 */
82static __be32
83nfsd3_proc_lookup(struct svc_rqst *rqstp)
84{
85 struct nfsd3_diropargs *argp = rqstp->rq_argp;
86 struct nfsd3_diropres *resp = rqstp->rq_resp;
87
88 dprintk("nfsd: LOOKUP(3) %s %.*s\n",
89 SVCFH_fmt(&argp->fh),
90 argp->len,
91 argp->name);
92
93 fh_copy(&resp->dirfh, &argp->fh);
94 fh_init(&resp->fh, NFS3_FHSIZE);
95
96 resp->status = nfsd_lookup(rqstp, &resp->dirfh,
97 argp->name, argp->len,
98 &resp->fh);
99 return rpc_success;
100}
101
102/*
103 * Check file access
104 */
105static __be32
106nfsd3_proc_access(struct svc_rqst *rqstp)
107{
108 struct nfsd3_accessargs *argp = rqstp->rq_argp;
109 struct nfsd3_accessres *resp = rqstp->rq_resp;
110
111 dprintk("nfsd: ACCESS(3) %s 0x%x\n",
112 SVCFH_fmt(&argp->fh),
113 argp->access);
114
115 fh_copy(&resp->fh, &argp->fh);
116 resp->access = argp->access;
117 resp->status = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
118 return rpc_success;
119}
120
121/*
122 * Read a symlink.
123 */
124static __be32
125nfsd3_proc_readlink(struct svc_rqst *rqstp)
126{
127 struct nfsd_fhandle *argp = rqstp->rq_argp;
128 struct nfsd3_readlinkres *resp = rqstp->rq_resp;
129
130 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
131
132 /* Read the symlink. */
133 fh_copy(&resp->fh, &argp->fh);
134 resp->len = NFS3_MAXPATHLEN;
135 resp->pages = rqstp->rq_next_page++;
136 resp->status = nfsd_readlink(rqstp, &resp->fh,
137 page_address(*resp->pages), &resp->len);
138 return rpc_success;
139}
140
141/*
142 * Read a portion of a file.
143 */
144static __be32
145nfsd3_proc_read(struct svc_rqst *rqstp)
146{
147 struct nfsd3_readargs *argp = rqstp->rq_argp;
148 struct nfsd3_readres *resp = rqstp->rq_resp;
149 u32 max_blocksize = svc_max_payload(rqstp);
150 unsigned int len;
151 int v;
152
153 argp->count = min_t(u32, argp->count, max_blocksize);
154
155 dprintk("nfsd: READ(3) %s %lu bytes at %Lu\n",
156 SVCFH_fmt(&argp->fh),
157 (unsigned long) argp->count,
158 (unsigned long long) argp->offset);
159
160 v = 0;
161 len = argp->count;
162 resp->pages = rqstp->rq_next_page;
163 while (len > 0) {
164 struct page *page = *(rqstp->rq_next_page++);
165
166 rqstp->rq_vec[v].iov_base = page_address(page);
167 rqstp->rq_vec[v].iov_len = min_t(unsigned int, len, PAGE_SIZE);
168 len -= rqstp->rq_vec[v].iov_len;
169 v++;
170 }
171
172 /* Obtain buffer pointer for payload.
173 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
174 * + 1 (xdr opaque byte count) = 26
175 */
176 resp->count = argp->count;
177 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
178
179 fh_copy(&resp->fh, &argp->fh);
180 resp->status = nfsd_read(rqstp, &resp->fh, argp->offset,
181 rqstp->rq_vec, v, &resp->count, &resp->eof);
182 return rpc_success;
183}
184
185/*
186 * Write data to a file
187 */
188static __be32
189nfsd3_proc_write(struct svc_rqst *rqstp)
190{
191 struct nfsd3_writeargs *argp = rqstp->rq_argp;
192 struct nfsd3_writeres *resp = rqstp->rq_resp;
193 unsigned long cnt = argp->len;
194 unsigned int nvecs;
195
196 dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
197 SVCFH_fmt(&argp->fh),
198 argp->len,
199 (unsigned long long) argp->offset,
200 argp->stable? " stable" : "");
201
202 fh_copy(&resp->fh, &argp->fh);
203 resp->committed = argp->stable;
204 nvecs = svc_fill_write_vector(rqstp, rqstp->rq_arg.pages,
205 &argp->first, cnt);
206 if (!nvecs) {
207 resp->status = nfserr_io;
208 goto out;
209 }
210 resp->status = nfsd_write(rqstp, &resp->fh, argp->offset,
211 rqstp->rq_vec, nvecs, &cnt,
212 resp->committed, resp->verf);
213 resp->count = cnt;
214out:
215 return rpc_success;
216}
217
218/*
219 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
220 * At least in theory; we'll see how it fares in practice when the
221 * first reports about SunOS compatibility problems start to pour in...
222 */
223static __be32
224nfsd3_proc_create(struct svc_rqst *rqstp)
225{
226 struct nfsd3_createargs *argp = rqstp->rq_argp;
227 struct nfsd3_diropres *resp = rqstp->rq_resp;
228 svc_fh *dirfhp, *newfhp = NULL;
229 struct iattr *attr;
230
231 dprintk("nfsd: CREATE(3) %s %.*s\n",
232 SVCFH_fmt(&argp->fh),
233 argp->len,
234 argp->name);
235
236 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
237 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
238 attr = &argp->attrs;
239
240 /* Unfudge the mode bits */
241 attr->ia_mode &= ~S_IFMT;
242 if (!(attr->ia_valid & ATTR_MODE)) {
243 attr->ia_valid |= ATTR_MODE;
244 attr->ia_mode = S_IFREG;
245 } else {
246 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
247 }
248
249 /* Now create the file and set attributes */
250 resp->status = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
251 attr, newfhp, argp->createmode,
252 (u32 *)argp->verf, NULL, NULL);
253 return rpc_success;
254}
255
256/*
257 * Make directory. This operation is not idempotent.
258 */
259static __be32
260nfsd3_proc_mkdir(struct svc_rqst *rqstp)
261{
262 struct nfsd3_createargs *argp = rqstp->rq_argp;
263 struct nfsd3_diropres *resp = rqstp->rq_resp;
264
265 dprintk("nfsd: MKDIR(3) %s %.*s\n",
266 SVCFH_fmt(&argp->fh),
267 argp->len,
268 argp->name);
269
270 argp->attrs.ia_valid &= ~ATTR_SIZE;
271 fh_copy(&resp->dirfh, &argp->fh);
272 fh_init(&resp->fh, NFS3_FHSIZE);
273 resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
274 &argp->attrs, S_IFDIR, 0, &resp->fh);
275 fh_unlock(&resp->dirfh);
276 return rpc_success;
277}
278
279static __be32
280nfsd3_proc_symlink(struct svc_rqst *rqstp)
281{
282 struct nfsd3_symlinkargs *argp = rqstp->rq_argp;
283 struct nfsd3_diropres *resp = rqstp->rq_resp;
284
285 if (argp->tlen == 0) {
286 resp->status = nfserr_inval;
287 goto out;
288 }
289 if (argp->tlen > NFS3_MAXPATHLEN) {
290 resp->status = nfserr_nametoolong;
291 goto out;
292 }
293
294 argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,
295 page_address(rqstp->rq_arg.pages[0]),
296 argp->tlen);
297 if (IS_ERR(argp->tname)) {
298 resp->status = nfserrno(PTR_ERR(argp->tname));
299 goto out;
300 }
301
302 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
303 SVCFH_fmt(&argp->ffh),
304 argp->flen, argp->fname,
305 argp->tlen, argp->tname);
306
307 fh_copy(&resp->dirfh, &argp->ffh);
308 fh_init(&resp->fh, NFS3_FHSIZE);
309 resp->status = nfsd_symlink(rqstp, &resp->dirfh, argp->fname,
310 argp->flen, argp->tname, &resp->fh);
311 kfree(argp->tname);
312out:
313 return rpc_success;
314}
315
316/*
317 * Make socket/fifo/device.
318 */
319static __be32
320nfsd3_proc_mknod(struct svc_rqst *rqstp)
321{
322 struct nfsd3_mknodargs *argp = rqstp->rq_argp;
323 struct nfsd3_diropres *resp = rqstp->rq_resp;
324 int type;
325 dev_t rdev = 0;
326
327 dprintk("nfsd: MKNOD(3) %s %.*s\n",
328 SVCFH_fmt(&argp->fh),
329 argp->len,
330 argp->name);
331
332 fh_copy(&resp->dirfh, &argp->fh);
333 fh_init(&resp->fh, NFS3_FHSIZE);
334
335 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
336 rdev = MKDEV(argp->major, argp->minor);
337 if (MAJOR(rdev) != argp->major ||
338 MINOR(rdev) != argp->minor) {
339 resp->status = nfserr_inval;
340 goto out;
341 }
342 } else if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO) {
343 resp->status = nfserr_badtype;
344 goto out;
345 }
346
347 type = nfs3_ftypes[argp->ftype];
348 resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
349 &argp->attrs, type, rdev, &resp->fh);
350 fh_unlock(&resp->dirfh);
351out:
352 return rpc_success;
353}
354
355/*
356 * Remove file/fifo/socket etc.
357 */
358static __be32
359nfsd3_proc_remove(struct svc_rqst *rqstp)
360{
361 struct nfsd3_diropargs *argp = rqstp->rq_argp;
362 struct nfsd3_attrstat *resp = rqstp->rq_resp;
363
364 dprintk("nfsd: REMOVE(3) %s %.*s\n",
365 SVCFH_fmt(&argp->fh),
366 argp->len,
367 argp->name);
368
369 /* Unlink. -S_IFDIR means file must not be a directory */
370 fh_copy(&resp->fh, &argp->fh);
371 resp->status = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR,
372 argp->name, argp->len);
373 fh_unlock(&resp->fh);
374 return rpc_success;
375}
376
377/*
378 * Remove a directory
379 */
380static __be32
381nfsd3_proc_rmdir(struct svc_rqst *rqstp)
382{
383 struct nfsd3_diropargs *argp = rqstp->rq_argp;
384 struct nfsd3_attrstat *resp = rqstp->rq_resp;
385
386 dprintk("nfsd: RMDIR(3) %s %.*s\n",
387 SVCFH_fmt(&argp->fh),
388 argp->len,
389 argp->name);
390
391 fh_copy(&resp->fh, &argp->fh);
392 resp->status = nfsd_unlink(rqstp, &resp->fh, S_IFDIR,
393 argp->name, argp->len);
394 fh_unlock(&resp->fh);
395 return rpc_success;
396}
397
398static __be32
399nfsd3_proc_rename(struct svc_rqst *rqstp)
400{
401 struct nfsd3_renameargs *argp = rqstp->rq_argp;
402 struct nfsd3_renameres *resp = rqstp->rq_resp;
403
404 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
405 SVCFH_fmt(&argp->ffh),
406 argp->flen,
407 argp->fname);
408 dprintk("nfsd: -> %s %.*s\n",
409 SVCFH_fmt(&argp->tfh),
410 argp->tlen,
411 argp->tname);
412
413 fh_copy(&resp->ffh, &argp->ffh);
414 fh_copy(&resp->tfh, &argp->tfh);
415 resp->status = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
416 &resp->tfh, argp->tname, argp->tlen);
417 return rpc_success;
418}
419
420static __be32
421nfsd3_proc_link(struct svc_rqst *rqstp)
422{
423 struct nfsd3_linkargs *argp = rqstp->rq_argp;
424 struct nfsd3_linkres *resp = rqstp->rq_resp;
425
426 dprintk("nfsd: LINK(3) %s ->\n",
427 SVCFH_fmt(&argp->ffh));
428 dprintk("nfsd: -> %s %.*s\n",
429 SVCFH_fmt(&argp->tfh),
430 argp->tlen,
431 argp->tname);
432
433 fh_copy(&resp->fh, &argp->ffh);
434 fh_copy(&resp->tfh, &argp->tfh);
435 resp->status = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
436 &resp->fh);
437 return rpc_success;
438}
439
440static void nfsd3_init_dirlist_pages(struct svc_rqst *rqstp,
441 struct nfsd3_readdirres *resp,
442 int count)
443{
444 struct xdr_buf *buf = &resp->dirlist;
445 struct xdr_stream *xdr = &resp->xdr;
446
447 count = min_t(u32, count, svc_max_payload(rqstp));
448
449 memset(buf, 0, sizeof(*buf));
450
451 /* Reserve room for the NULL ptr & eof flag (-2 words) */
452 buf->buflen = count - XDR_UNIT * 2;
453 buf->pages = rqstp->rq_next_page;
454 while (count > 0) {
455 rqstp->rq_next_page++;
456 count -= PAGE_SIZE;
457 }
458
459 /* This is xdr_init_encode(), but it assumes that
460 * the head kvec has already been consumed. */
461 xdr_set_scratch_buffer(xdr, NULL, 0);
462 xdr->buf = buf;
463 xdr->page_ptr = buf->pages;
464 xdr->iov = NULL;
465 xdr->p = page_address(*buf->pages);
466 xdr->end = xdr->p + (PAGE_SIZE >> 2);
467 xdr->rqst = NULL;
468}
469
470/*
471 * Read a portion of a directory.
472 */
473static __be32
474nfsd3_proc_readdir(struct svc_rqst *rqstp)
475{
476 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
477 struct nfsd3_readdirres *resp = rqstp->rq_resp;
478 loff_t offset;
479
480 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
481 SVCFH_fmt(&argp->fh),
482 argp->count, (u32) argp->cookie);
483
484 nfsd3_init_dirlist_pages(rqstp, resp, argp->count);
485
486 fh_copy(&resp->fh, &argp->fh);
487 resp->common.err = nfs_ok;
488 resp->cookie_offset = 0;
489 resp->rqstp = rqstp;
490 offset = argp->cookie;
491 resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
492 &resp->common, nfs3svc_encode_entry3);
493 memcpy(resp->verf, argp->verf, 8);
494 nfs3svc_encode_cookie3(resp, offset);
495
496 /* Recycle only pages that were part of the reply */
497 rqstp->rq_next_page = resp->xdr.page_ptr + 1;
498
499 return rpc_success;
500}
501
502/*
503 * Read a portion of a directory, including file handles and attrs.
504 * For now, we choose to ignore the dircount parameter.
505 */
506static __be32
507nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
508{
509 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
510 struct nfsd3_readdirres *resp = rqstp->rq_resp;
511 loff_t offset;
512
513 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
514 SVCFH_fmt(&argp->fh),
515 argp->count, (u32) argp->cookie);
516
517 nfsd3_init_dirlist_pages(rqstp, resp, argp->count);
518
519 fh_copy(&resp->fh, &argp->fh);
520 resp->common.err = nfs_ok;
521 resp->cookie_offset = 0;
522 resp->rqstp = rqstp;
523 offset = argp->cookie;
524
525 resp->status = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
526 if (resp->status != nfs_ok)
527 goto out;
528
529 if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS) {
530 resp->status = nfserr_notsupp;
531 goto out;
532 }
533
534 resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
535 &resp->common, nfs3svc_encode_entryplus3);
536 memcpy(resp->verf, argp->verf, 8);
537 nfs3svc_encode_cookie3(resp, offset);
538
539 /* Recycle only pages that were part of the reply */
540 rqstp->rq_next_page = resp->xdr.page_ptr + 1;
541
542out:
543 return rpc_success;
544}
545
546/*
547 * Get file system stats
548 */
549static __be32
550nfsd3_proc_fsstat(struct svc_rqst *rqstp)
551{
552 struct nfsd_fhandle *argp = rqstp->rq_argp;
553 struct nfsd3_fsstatres *resp = rqstp->rq_resp;
554
555 dprintk("nfsd: FSSTAT(3) %s\n",
556 SVCFH_fmt(&argp->fh));
557
558 resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
559 fh_put(&argp->fh);
560 return rpc_success;
561}
562
563/*
564 * Get file system info
565 */
566static __be32
567nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
568{
569 struct nfsd_fhandle *argp = rqstp->rq_argp;
570 struct nfsd3_fsinfores *resp = rqstp->rq_resp;
571 u32 max_blocksize = svc_max_payload(rqstp);
572
573 dprintk("nfsd: FSINFO(3) %s\n",
574 SVCFH_fmt(&argp->fh));
575
576 resp->f_rtmax = max_blocksize;
577 resp->f_rtpref = max_blocksize;
578 resp->f_rtmult = PAGE_SIZE;
579 resp->f_wtmax = max_blocksize;
580 resp->f_wtpref = max_blocksize;
581 resp->f_wtmult = PAGE_SIZE;
582 resp->f_dtpref = max_blocksize;
583 resp->f_maxfilesize = ~(u32) 0;
584 resp->f_properties = NFS3_FSF_DEFAULT;
585
586 resp->status = fh_verify(rqstp, &argp->fh, 0,
587 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
588
589 /* Check special features of the file system. May request
590 * different read/write sizes for file systems known to have
591 * problems with large blocks */
592 if (resp->status == nfs_ok) {
593 struct super_block *sb = argp->fh.fh_dentry->d_sb;
594
595 /* Note that we don't care for remote fs's here */
596 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
597 resp->f_properties = NFS3_FSF_BILLYBOY;
598 }
599 resp->f_maxfilesize = sb->s_maxbytes;
600 }
601
602 fh_put(&argp->fh);
603 return rpc_success;
604}
605
606/*
607 * Get pathconf info for the specified file
608 */
609static __be32
610nfsd3_proc_pathconf(struct svc_rqst *rqstp)
611{
612 struct nfsd_fhandle *argp = rqstp->rq_argp;
613 struct nfsd3_pathconfres *resp = rqstp->rq_resp;
614
615 dprintk("nfsd: PATHCONF(3) %s\n",
616 SVCFH_fmt(&argp->fh));
617
618 /* Set default pathconf */
619 resp->p_link_max = 255; /* at least */
620 resp->p_name_max = 255; /* at least */
621 resp->p_no_trunc = 0;
622 resp->p_chown_restricted = 1;
623 resp->p_case_insensitive = 0;
624 resp->p_case_preserving = 1;
625
626 resp->status = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
627
628 if (resp->status == nfs_ok) {
629 struct super_block *sb = argp->fh.fh_dentry->d_sb;
630
631 /* Note that we don't care for remote fs's here */
632 switch (sb->s_magic) {
633 case EXT2_SUPER_MAGIC:
634 resp->p_link_max = EXT2_LINK_MAX;
635 resp->p_name_max = EXT2_NAME_LEN;
636 break;
637 case MSDOS_SUPER_MAGIC:
638 resp->p_case_insensitive = 1;
639 resp->p_case_preserving = 0;
640 break;
641 }
642 }
643
644 fh_put(&argp->fh);
645 return rpc_success;
646}
647
648/*
649 * Commit a file (range) to stable storage.
650 */
651static __be32
652nfsd3_proc_commit(struct svc_rqst *rqstp)
653{
654 struct nfsd3_commitargs *argp = rqstp->rq_argp;
655 struct nfsd3_commitres *resp = rqstp->rq_resp;
656
657 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
658 SVCFH_fmt(&argp->fh),
659 argp->count,
660 (unsigned long long) argp->offset);
661
662 if (argp->offset > NFS_OFFSET_MAX) {
663 resp->status = nfserr_inval;
664 goto out;
665 }
666
667 fh_copy(&resp->fh, &argp->fh);
668 resp->status = nfsd_commit(rqstp, &resp->fh, argp->offset,
669 argp->count, resp->verf);
670out:
671 return rpc_success;
672}
673
674
675/*
676 * NFSv3 Server procedures.
677 * Only the results of non-idempotent operations are cached.
678 */
679#define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
680#define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
681#define nfsd3_mkdirargs nfsd3_createargs
682#define nfsd3_readdirplusargs nfsd3_readdirargs
683#define nfsd3_fhandleargs nfsd_fhandle
684#define nfsd3_attrstatres nfsd3_attrstat
685#define nfsd3_wccstatres nfsd3_attrstat
686#define nfsd3_createres nfsd3_diropres
687
688#define ST 1 /* status*/
689#define FH 17 /* filehandle with length */
690#define AT 21 /* attributes */
691#define pAT (1+AT) /* post attributes - conditional */
692#define WC (7+pAT) /* WCC attributes */
693
694static const struct svc_procedure nfsd_procedures3[22] = {
695 [NFS3PROC_NULL] = {
696 .pc_func = nfsd3_proc_null,
697 .pc_decode = nfssvc_decode_voidarg,
698 .pc_encode = nfssvc_encode_voidres,
699 .pc_argsize = sizeof(struct nfsd_voidargs),
700 .pc_ressize = sizeof(struct nfsd_voidres),
701 .pc_cachetype = RC_NOCACHE,
702 .pc_xdrressize = ST,
703 .pc_name = "NULL",
704 },
705 [NFS3PROC_GETATTR] = {
706 .pc_func = nfsd3_proc_getattr,
707 .pc_decode = nfs3svc_decode_fhandleargs,
708 .pc_encode = nfs3svc_encode_getattrres,
709 .pc_release = nfs3svc_release_fhandle,
710 .pc_argsize = sizeof(struct nfsd_fhandle),
711 .pc_ressize = sizeof(struct nfsd3_attrstatres),
712 .pc_cachetype = RC_NOCACHE,
713 .pc_xdrressize = ST+AT,
714 .pc_name = "GETATTR",
715 },
716 [NFS3PROC_SETATTR] = {
717 .pc_func = nfsd3_proc_setattr,
718 .pc_decode = nfs3svc_decode_sattrargs,
719 .pc_encode = nfs3svc_encode_wccstatres,
720 .pc_release = nfs3svc_release_fhandle,
721 .pc_argsize = sizeof(struct nfsd3_sattrargs),
722 .pc_ressize = sizeof(struct nfsd3_wccstatres),
723 .pc_cachetype = RC_REPLBUFF,
724 .pc_xdrressize = ST+WC,
725 .pc_name = "SETATTR",
726 },
727 [NFS3PROC_LOOKUP] = {
728 .pc_func = nfsd3_proc_lookup,
729 .pc_decode = nfs3svc_decode_diropargs,
730 .pc_encode = nfs3svc_encode_lookupres,
731 .pc_release = nfs3svc_release_fhandle2,
732 .pc_argsize = sizeof(struct nfsd3_diropargs),
733 .pc_ressize = sizeof(struct nfsd3_diropres),
734 .pc_cachetype = RC_NOCACHE,
735 .pc_xdrressize = ST+FH+pAT+pAT,
736 .pc_name = "LOOKUP",
737 },
738 [NFS3PROC_ACCESS] = {
739 .pc_func = nfsd3_proc_access,
740 .pc_decode = nfs3svc_decode_accessargs,
741 .pc_encode = nfs3svc_encode_accessres,
742 .pc_release = nfs3svc_release_fhandle,
743 .pc_argsize = sizeof(struct nfsd3_accessargs),
744 .pc_ressize = sizeof(struct nfsd3_accessres),
745 .pc_cachetype = RC_NOCACHE,
746 .pc_xdrressize = ST+pAT+1,
747 .pc_name = "ACCESS",
748 },
749 [NFS3PROC_READLINK] = {
750 .pc_func = nfsd3_proc_readlink,
751 .pc_decode = nfs3svc_decode_fhandleargs,
752 .pc_encode = nfs3svc_encode_readlinkres,
753 .pc_release = nfs3svc_release_fhandle,
754 .pc_argsize = sizeof(struct nfsd_fhandle),
755 .pc_ressize = sizeof(struct nfsd3_readlinkres),
756 .pc_cachetype = RC_NOCACHE,
757 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
758 .pc_name = "READLINK",
759 },
760 [NFS3PROC_READ] = {
761 .pc_func = nfsd3_proc_read,
762 .pc_decode = nfs3svc_decode_readargs,
763 .pc_encode = nfs3svc_encode_readres,
764 .pc_release = nfs3svc_release_fhandle,
765 .pc_argsize = sizeof(struct nfsd3_readargs),
766 .pc_ressize = sizeof(struct nfsd3_readres),
767 .pc_cachetype = RC_NOCACHE,
768 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
769 .pc_name = "READ",
770 },
771 [NFS3PROC_WRITE] = {
772 .pc_func = nfsd3_proc_write,
773 .pc_decode = nfs3svc_decode_writeargs,
774 .pc_encode = nfs3svc_encode_writeres,
775 .pc_release = nfs3svc_release_fhandle,
776 .pc_argsize = sizeof(struct nfsd3_writeargs),
777 .pc_ressize = sizeof(struct nfsd3_writeres),
778 .pc_cachetype = RC_REPLBUFF,
779 .pc_xdrressize = ST+WC+4,
780 .pc_name = "WRITE",
781 },
782 [NFS3PROC_CREATE] = {
783 .pc_func = nfsd3_proc_create,
784 .pc_decode = nfs3svc_decode_createargs,
785 .pc_encode = nfs3svc_encode_createres,
786 .pc_release = nfs3svc_release_fhandle2,
787 .pc_argsize = sizeof(struct nfsd3_createargs),
788 .pc_ressize = sizeof(struct nfsd3_createres),
789 .pc_cachetype = RC_REPLBUFF,
790 .pc_xdrressize = ST+(1+FH+pAT)+WC,
791 .pc_name = "CREATE",
792 },
793 [NFS3PROC_MKDIR] = {
794 .pc_func = nfsd3_proc_mkdir,
795 .pc_decode = nfs3svc_decode_mkdirargs,
796 .pc_encode = nfs3svc_encode_createres,
797 .pc_release = nfs3svc_release_fhandle2,
798 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
799 .pc_ressize = sizeof(struct nfsd3_createres),
800 .pc_cachetype = RC_REPLBUFF,
801 .pc_xdrressize = ST+(1+FH+pAT)+WC,
802 .pc_name = "MKDIR",
803 },
804 [NFS3PROC_SYMLINK] = {
805 .pc_func = nfsd3_proc_symlink,
806 .pc_decode = nfs3svc_decode_symlinkargs,
807 .pc_encode = nfs3svc_encode_createres,
808 .pc_release = nfs3svc_release_fhandle2,
809 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
810 .pc_ressize = sizeof(struct nfsd3_createres),
811 .pc_cachetype = RC_REPLBUFF,
812 .pc_xdrressize = ST+(1+FH+pAT)+WC,
813 .pc_name = "SYMLINK",
814 },
815 [NFS3PROC_MKNOD] = {
816 .pc_func = nfsd3_proc_mknod,
817 .pc_decode = nfs3svc_decode_mknodargs,
818 .pc_encode = nfs3svc_encode_createres,
819 .pc_release = nfs3svc_release_fhandle2,
820 .pc_argsize = sizeof(struct nfsd3_mknodargs),
821 .pc_ressize = sizeof(struct nfsd3_createres),
822 .pc_cachetype = RC_REPLBUFF,
823 .pc_xdrressize = ST+(1+FH+pAT)+WC,
824 .pc_name = "MKNOD",
825 },
826 [NFS3PROC_REMOVE] = {
827 .pc_func = nfsd3_proc_remove,
828 .pc_decode = nfs3svc_decode_diropargs,
829 .pc_encode = nfs3svc_encode_wccstatres,
830 .pc_release = nfs3svc_release_fhandle,
831 .pc_argsize = sizeof(struct nfsd3_diropargs),
832 .pc_ressize = sizeof(struct nfsd3_wccstatres),
833 .pc_cachetype = RC_REPLBUFF,
834 .pc_xdrressize = ST+WC,
835 .pc_name = "REMOVE",
836 },
837 [NFS3PROC_RMDIR] = {
838 .pc_func = nfsd3_proc_rmdir,
839 .pc_decode = nfs3svc_decode_diropargs,
840 .pc_encode = nfs3svc_encode_wccstatres,
841 .pc_release = nfs3svc_release_fhandle,
842 .pc_argsize = sizeof(struct nfsd3_diropargs),
843 .pc_ressize = sizeof(struct nfsd3_wccstatres),
844 .pc_cachetype = RC_REPLBUFF,
845 .pc_xdrressize = ST+WC,
846 .pc_name = "RMDIR",
847 },
848 [NFS3PROC_RENAME] = {
849 .pc_func = nfsd3_proc_rename,
850 .pc_decode = nfs3svc_decode_renameargs,
851 .pc_encode = nfs3svc_encode_renameres,
852 .pc_release = nfs3svc_release_fhandle2,
853 .pc_argsize = sizeof(struct nfsd3_renameargs),
854 .pc_ressize = sizeof(struct nfsd3_renameres),
855 .pc_cachetype = RC_REPLBUFF,
856 .pc_xdrressize = ST+WC+WC,
857 .pc_name = "RENAME",
858 },
859 [NFS3PROC_LINK] = {
860 .pc_func = nfsd3_proc_link,
861 .pc_decode = nfs3svc_decode_linkargs,
862 .pc_encode = nfs3svc_encode_linkres,
863 .pc_release = nfs3svc_release_fhandle2,
864 .pc_argsize = sizeof(struct nfsd3_linkargs),
865 .pc_ressize = sizeof(struct nfsd3_linkres),
866 .pc_cachetype = RC_REPLBUFF,
867 .pc_xdrressize = ST+pAT+WC,
868 .pc_name = "LINK",
869 },
870 [NFS3PROC_READDIR] = {
871 .pc_func = nfsd3_proc_readdir,
872 .pc_decode = nfs3svc_decode_readdirargs,
873 .pc_encode = nfs3svc_encode_readdirres,
874 .pc_release = nfs3svc_release_fhandle,
875 .pc_argsize = sizeof(struct nfsd3_readdirargs),
876 .pc_ressize = sizeof(struct nfsd3_readdirres),
877 .pc_cachetype = RC_NOCACHE,
878 .pc_name = "READDIR",
879 },
880 [NFS3PROC_READDIRPLUS] = {
881 .pc_func = nfsd3_proc_readdirplus,
882 .pc_decode = nfs3svc_decode_readdirplusargs,
883 .pc_encode = nfs3svc_encode_readdirres,
884 .pc_release = nfs3svc_release_fhandle,
885 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
886 .pc_ressize = sizeof(struct nfsd3_readdirres),
887 .pc_cachetype = RC_NOCACHE,
888 .pc_name = "READDIRPLUS",
889 },
890 [NFS3PROC_FSSTAT] = {
891 .pc_func = nfsd3_proc_fsstat,
892 .pc_decode = nfs3svc_decode_fhandleargs,
893 .pc_encode = nfs3svc_encode_fsstatres,
894 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
895 .pc_ressize = sizeof(struct nfsd3_fsstatres),
896 .pc_cachetype = RC_NOCACHE,
897 .pc_xdrressize = ST+pAT+2*6+1,
898 .pc_name = "FSSTAT",
899 },
900 [NFS3PROC_FSINFO] = {
901 .pc_func = nfsd3_proc_fsinfo,
902 .pc_decode = nfs3svc_decode_fhandleargs,
903 .pc_encode = nfs3svc_encode_fsinfores,
904 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
905 .pc_ressize = sizeof(struct nfsd3_fsinfores),
906 .pc_cachetype = RC_NOCACHE,
907 .pc_xdrressize = ST+pAT+12,
908 .pc_name = "FSINFO",
909 },
910 [NFS3PROC_PATHCONF] = {
911 .pc_func = nfsd3_proc_pathconf,
912 .pc_decode = nfs3svc_decode_fhandleargs,
913 .pc_encode = nfs3svc_encode_pathconfres,
914 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
915 .pc_ressize = sizeof(struct nfsd3_pathconfres),
916 .pc_cachetype = RC_NOCACHE,
917 .pc_xdrressize = ST+pAT+6,
918 .pc_name = "PATHCONF",
919 },
920 [NFS3PROC_COMMIT] = {
921 .pc_func = nfsd3_proc_commit,
922 .pc_decode = nfs3svc_decode_commitargs,
923 .pc_encode = nfs3svc_encode_commitres,
924 .pc_release = nfs3svc_release_fhandle,
925 .pc_argsize = sizeof(struct nfsd3_commitargs),
926 .pc_ressize = sizeof(struct nfsd3_commitres),
927 .pc_cachetype = RC_NOCACHE,
928 .pc_xdrressize = ST+WC+2,
929 .pc_name = "COMMIT",
930 },
931};
932
933static unsigned int nfsd_count3[ARRAY_SIZE(nfsd_procedures3)];
934const struct svc_version nfsd_version3 = {
935 .vs_vers = 3,
936 .vs_nproc = 22,
937 .vs_proc = nfsd_procedures3,
938 .vs_dispatch = nfsd_dispatch,
939 .vs_count = nfsd_count3,
940 .vs_xdrsize = NFS3_SVC_XDRSIZE,
941};