Loading...
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 __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 */
65static __be32
66nfsd3_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 */
83static __be32
84nfsd3_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 */
107static __be32
108nfsd3_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 */
126static __be32
127nfsd3_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 */
144static __be32
145nfsd3_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
161 resp->count = argp->count;
162 if (max_blocksize < resp->count)
163 resp->count = max_blocksize;
164
165 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
166
167 fh_copy(&resp->fh, &argp->fh);
168 nfserr = nfsd_read(rqstp, &resp->fh,
169 argp->offset,
170 rqstp->rq_vec, argp->vlen,
171 &resp->count);
172 if (nfserr == 0) {
173 struct inode *inode = resp->fh.fh_dentry->d_inode;
174
175 resp->eof = (argp->offset + resp->count) >= inode->i_size;
176 }
177
178 RETURN_STATUS(nfserr);
179}
180
181/*
182 * Write data to a file
183 */
184static __be32
185nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
186 struct nfsd3_writeres *resp)
187{
188 __be32 nfserr;
189 unsigned long cnt = argp->len;
190
191 dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
192 SVCFH_fmt(&argp->fh),
193 argp->len,
194 (unsigned long long) argp->offset,
195 argp->stable? " stable" : "");
196
197 fh_copy(&resp->fh, &argp->fh);
198 resp->committed = argp->stable;
199 nfserr = nfsd_write(rqstp, &resp->fh, NULL,
200 argp->offset,
201 rqstp->rq_vec, argp->vlen,
202 &cnt,
203 &resp->committed);
204 resp->count = cnt;
205 RETURN_STATUS(nfserr);
206}
207
208/*
209 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
210 * At least in theory; we'll see how it fares in practice when the
211 * first reports about SunOS compatibility problems start to pour in...
212 */
213static __be32
214nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
215 struct nfsd3_diropres *resp)
216{
217 svc_fh *dirfhp, *newfhp = NULL;
218 struct iattr *attr;
219 __be32 nfserr;
220
221 dprintk("nfsd: CREATE(3) %s %.*s\n",
222 SVCFH_fmt(&argp->fh),
223 argp->len,
224 argp->name);
225
226 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
227 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
228 attr = &argp->attrs;
229
230 /* Get the directory inode */
231 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_CREATE);
232 if (nfserr)
233 RETURN_STATUS(nfserr);
234
235 /* Unfudge the mode bits */
236 attr->ia_mode &= ~S_IFMT;
237 if (!(attr->ia_valid & ATTR_MODE)) {
238 attr->ia_valid |= ATTR_MODE;
239 attr->ia_mode = S_IFREG;
240 } else {
241 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
242 }
243
244 /* Now create the file and set attributes */
245 nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
246 attr, newfhp,
247 argp->createmode, (u32 *)argp->verf, NULL, NULL);
248
249 RETURN_STATUS(nfserr);
250}
251
252/*
253 * Make directory. This operation is not idempotent.
254 */
255static __be32
256nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
257 struct nfsd3_diropres *resp)
258{
259 __be32 nfserr;
260
261 dprintk("nfsd: MKDIR(3) %s %.*s\n",
262 SVCFH_fmt(&argp->fh),
263 argp->len,
264 argp->name);
265
266 argp->attrs.ia_valid &= ~ATTR_SIZE;
267 fh_copy(&resp->dirfh, &argp->fh);
268 fh_init(&resp->fh, NFS3_FHSIZE);
269 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
270 &argp->attrs, S_IFDIR, 0, &resp->fh);
271 fh_unlock(&resp->dirfh);
272 RETURN_STATUS(nfserr);
273}
274
275static __be32
276nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
277 struct nfsd3_diropres *resp)
278{
279 __be32 nfserr;
280
281 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
282 SVCFH_fmt(&argp->ffh),
283 argp->flen, argp->fname,
284 argp->tlen, argp->tname);
285
286 fh_copy(&resp->dirfh, &argp->ffh);
287 fh_init(&resp->fh, NFS3_FHSIZE);
288 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
289 argp->tname, argp->tlen,
290 &resp->fh, &argp->attrs);
291 RETURN_STATUS(nfserr);
292}
293
294/*
295 * Make socket/fifo/device.
296 */
297static __be32
298nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
299 struct nfsd3_diropres *resp)
300{
301 __be32 nfserr;
302 int type;
303 dev_t rdev = 0;
304
305 dprintk("nfsd: MKNOD(3) %s %.*s\n",
306 SVCFH_fmt(&argp->fh),
307 argp->len,
308 argp->name);
309
310 fh_copy(&resp->dirfh, &argp->fh);
311 fh_init(&resp->fh, NFS3_FHSIZE);
312
313 if (argp->ftype == 0 || argp->ftype >= NF3BAD)
314 RETURN_STATUS(nfserr_inval);
315 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
316 rdev = MKDEV(argp->major, argp->minor);
317 if (MAJOR(rdev) != argp->major ||
318 MINOR(rdev) != argp->minor)
319 RETURN_STATUS(nfserr_inval);
320 } else
321 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
322 RETURN_STATUS(nfserr_inval);
323
324 type = nfs3_ftypes[argp->ftype];
325 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
326 &argp->attrs, type, rdev, &resp->fh);
327 fh_unlock(&resp->dirfh);
328 RETURN_STATUS(nfserr);
329}
330
331/*
332 * Remove file/fifo/socket etc.
333 */
334static __be32
335nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
336 struct nfsd3_attrstat *resp)
337{
338 __be32 nfserr;
339
340 dprintk("nfsd: REMOVE(3) %s %.*s\n",
341 SVCFH_fmt(&argp->fh),
342 argp->len,
343 argp->name);
344
345 /* Unlink. -S_IFDIR means file must not be a directory */
346 fh_copy(&resp->fh, &argp->fh);
347 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
348 fh_unlock(&resp->fh);
349 RETURN_STATUS(nfserr);
350}
351
352/*
353 * Remove a directory
354 */
355static __be32
356nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
357 struct nfsd3_attrstat *resp)
358{
359 __be32 nfserr;
360
361 dprintk("nfsd: RMDIR(3) %s %.*s\n",
362 SVCFH_fmt(&argp->fh),
363 argp->len,
364 argp->name);
365
366 fh_copy(&resp->fh, &argp->fh);
367 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
368 fh_unlock(&resp->fh);
369 RETURN_STATUS(nfserr);
370}
371
372static __be32
373nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
374 struct nfsd3_renameres *resp)
375{
376 __be32 nfserr;
377
378 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
379 SVCFH_fmt(&argp->ffh),
380 argp->flen,
381 argp->fname);
382 dprintk("nfsd: -> %s %.*s\n",
383 SVCFH_fmt(&argp->tfh),
384 argp->tlen,
385 argp->tname);
386
387 fh_copy(&resp->ffh, &argp->ffh);
388 fh_copy(&resp->tfh, &argp->tfh);
389 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
390 &resp->tfh, argp->tname, argp->tlen);
391 RETURN_STATUS(nfserr);
392}
393
394static __be32
395nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
396 struct nfsd3_linkres *resp)
397{
398 __be32 nfserr;
399
400 dprintk("nfsd: LINK(3) %s ->\n",
401 SVCFH_fmt(&argp->ffh));
402 dprintk("nfsd: -> %s %.*s\n",
403 SVCFH_fmt(&argp->tfh),
404 argp->tlen,
405 argp->tname);
406
407 fh_copy(&resp->fh, &argp->ffh);
408 fh_copy(&resp->tfh, &argp->tfh);
409 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
410 &resp->fh);
411 RETURN_STATUS(nfserr);
412}
413
414/*
415 * Read a portion of a directory.
416 */
417static __be32
418nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
419 struct nfsd3_readdirres *resp)
420{
421 __be32 nfserr;
422 int count;
423
424 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
425 SVCFH_fmt(&argp->fh),
426 argp->count, (u32) argp->cookie);
427
428 /* Make sure we've room for the NULL ptr & eof flag, and shrink to
429 * client read size */
430 count = (argp->count >> 2) - 2;
431
432 /* Read directory and encode entries on the fly */
433 fh_copy(&resp->fh, &argp->fh);
434
435 resp->buflen = count;
436 resp->common.err = nfs_ok;
437 resp->buffer = argp->buffer;
438 resp->rqstp = rqstp;
439 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie,
440 &resp->common, nfs3svc_encode_entry);
441 memcpy(resp->verf, argp->verf, 8);
442 resp->count = resp->buffer - argp->buffer;
443 if (resp->offset)
444 xdr_encode_hyper(resp->offset, argp->cookie);
445
446 RETURN_STATUS(nfserr);
447}
448
449/*
450 * Read a portion of a directory, including file handles and attrs.
451 * For now, we choose to ignore the dircount parameter.
452 */
453static __be32
454nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
455 struct nfsd3_readdirres *resp)
456{
457 __be32 nfserr;
458 int count = 0;
459 loff_t offset;
460 struct page **p;
461 caddr_t page_addr = NULL;
462
463 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
464 SVCFH_fmt(&argp->fh),
465 argp->count, (u32) argp->cookie);
466
467 /* Convert byte count to number of words (i.e. >> 2),
468 * and reserve room for the NULL ptr & eof flag (-2 words) */
469 resp->count = (argp->count >> 2) - 2;
470
471 /* Read directory and encode entries on the fly */
472 fh_copy(&resp->fh, &argp->fh);
473
474 resp->common.err = nfs_ok;
475 resp->buffer = argp->buffer;
476 resp->buflen = resp->count;
477 resp->rqstp = rqstp;
478 offset = argp->cookie;
479 nfserr = nfsd_readdir(rqstp, &resp->fh,
480 &offset,
481 &resp->common,
482 nfs3svc_encode_entry_plus);
483 memcpy(resp->verf, argp->verf, 8);
484 for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) {
485 page_addr = page_address(*p);
486
487 if (((caddr_t)resp->buffer >= page_addr) &&
488 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
489 count += (caddr_t)resp->buffer - page_addr;
490 break;
491 }
492 count += PAGE_SIZE;
493 }
494 resp->count = count >> 2;
495 if (resp->offset) {
496 if (unlikely(resp->offset1)) {
497 /* we ended up with offset on a page boundary */
498 *resp->offset = htonl(offset >> 32);
499 *resp->offset1 = htonl(offset & 0xffffffff);
500 resp->offset1 = NULL;
501 } else {
502 xdr_encode_hyper(resp->offset, offset);
503 }
504 }
505
506 RETURN_STATUS(nfserr);
507}
508
509/*
510 * Get file system stats
511 */
512static __be32
513nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
514 struct nfsd3_fsstatres *resp)
515{
516 __be32 nfserr;
517
518 dprintk("nfsd: FSSTAT(3) %s\n",
519 SVCFH_fmt(&argp->fh));
520
521 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
522 fh_put(&argp->fh);
523 RETURN_STATUS(nfserr);
524}
525
526/*
527 * Get file system info
528 */
529static __be32
530nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
531 struct nfsd3_fsinfores *resp)
532{
533 __be32 nfserr;
534 u32 max_blocksize = svc_max_payload(rqstp);
535
536 dprintk("nfsd: FSINFO(3) %s\n",
537 SVCFH_fmt(&argp->fh));
538
539 resp->f_rtmax = max_blocksize;
540 resp->f_rtpref = max_blocksize;
541 resp->f_rtmult = PAGE_SIZE;
542 resp->f_wtmax = max_blocksize;
543 resp->f_wtpref = max_blocksize;
544 resp->f_wtmult = PAGE_SIZE;
545 resp->f_dtpref = PAGE_SIZE;
546 resp->f_maxfilesize = ~(u32) 0;
547 resp->f_properties = NFS3_FSF_DEFAULT;
548
549 nfserr = fh_verify(rqstp, &argp->fh, 0,
550 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
551
552 /* Check special features of the file system. May request
553 * different read/write sizes for file systems known to have
554 * problems with large blocks */
555 if (nfserr == 0) {
556 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
557
558 /* Note that we don't care for remote fs's here */
559 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
560 resp->f_properties = NFS3_FSF_BILLYBOY;
561 }
562 resp->f_maxfilesize = sb->s_maxbytes;
563 }
564
565 fh_put(&argp->fh);
566 RETURN_STATUS(nfserr);
567}
568
569/*
570 * Get pathconf info for the specified file
571 */
572static __be32
573nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
574 struct nfsd3_pathconfres *resp)
575{
576 __be32 nfserr;
577
578 dprintk("nfsd: PATHCONF(3) %s\n",
579 SVCFH_fmt(&argp->fh));
580
581 /* Set default pathconf */
582 resp->p_link_max = 255; /* at least */
583 resp->p_name_max = 255; /* at least */
584 resp->p_no_trunc = 0;
585 resp->p_chown_restricted = 1;
586 resp->p_case_insensitive = 0;
587 resp->p_case_preserving = 1;
588
589 nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
590
591 if (nfserr == 0) {
592 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
593
594 /* Note that we don't care for remote fs's here */
595 switch (sb->s_magic) {
596 case EXT2_SUPER_MAGIC:
597 resp->p_link_max = EXT2_LINK_MAX;
598 resp->p_name_max = EXT2_NAME_LEN;
599 break;
600 case MSDOS_SUPER_MAGIC:
601 resp->p_case_insensitive = 1;
602 resp->p_case_preserving = 0;
603 break;
604 }
605 }
606
607 fh_put(&argp->fh);
608 RETURN_STATUS(nfserr);
609}
610
611
612/*
613 * Commit a file (range) to stable storage.
614 */
615static __be32
616nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
617 struct nfsd3_commitres *resp)
618{
619 __be32 nfserr;
620
621 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
622 SVCFH_fmt(&argp->fh),
623 argp->count,
624 (unsigned long long) argp->offset);
625
626 if (argp->offset > NFS_OFFSET_MAX)
627 RETURN_STATUS(nfserr_inval);
628
629 fh_copy(&resp->fh, &argp->fh);
630 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count);
631
632 RETURN_STATUS(nfserr);
633}
634
635
636/*
637 * NFSv3 Server procedures.
638 * Only the results of non-idempotent operations are cached.
639 */
640#define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle
641#define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
642#define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
643#define nfsd3_mkdirargs nfsd3_createargs
644#define nfsd3_readdirplusargs nfsd3_readdirargs
645#define nfsd3_fhandleargs nfsd_fhandle
646#define nfsd3_fhandleres nfsd3_attrstat
647#define nfsd3_attrstatres nfsd3_attrstat
648#define nfsd3_wccstatres nfsd3_attrstat
649#define nfsd3_createres nfsd3_diropres
650#define nfsd3_voidres nfsd3_voidargs
651struct nfsd3_voidargs { int dummy; };
652
653#define PROC(name, argt, rest, relt, cache, respsize) \
654 { (svc_procfunc) nfsd3_proc_##name, \
655 (kxdrproc_t) nfs3svc_decode_##argt##args, \
656 (kxdrproc_t) nfs3svc_encode_##rest##res, \
657 (kxdrproc_t) nfs3svc_release_##relt, \
658 sizeof(struct nfsd3_##argt##args), \
659 sizeof(struct nfsd3_##rest##res), \
660 0, \
661 cache, \
662 respsize, \
663 }
664
665#define ST 1 /* status*/
666#define FH 17 /* filehandle with length */
667#define AT 21 /* attributes */
668#define pAT (1+AT) /* post attributes - conditional */
669#define WC (7+pAT) /* WCC attributes */
670
671static struct svc_procedure nfsd_procedures3[22] = {
672 [NFS3PROC_NULL] = {
673 .pc_func = (svc_procfunc) nfsd3_proc_null,
674 .pc_encode = (kxdrproc_t) nfs3svc_encode_voidres,
675 .pc_argsize = sizeof(struct nfsd3_voidargs),
676 .pc_ressize = sizeof(struct nfsd3_voidres),
677 .pc_cachetype = RC_NOCACHE,
678 .pc_xdrressize = ST,
679 },
680 [NFS3PROC_GETATTR] = {
681 .pc_func = (svc_procfunc) nfsd3_proc_getattr,
682 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
683 .pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres,
684 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
685 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
686 .pc_ressize = sizeof(struct nfsd3_attrstatres),
687 .pc_cachetype = RC_NOCACHE,
688 .pc_xdrressize = ST+AT,
689 },
690 [NFS3PROC_SETATTR] = {
691 .pc_func = (svc_procfunc) nfsd3_proc_setattr,
692 .pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs,
693 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
694 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
695 .pc_argsize = sizeof(struct nfsd3_sattrargs),
696 .pc_ressize = sizeof(struct nfsd3_wccstatres),
697 .pc_cachetype = RC_REPLBUFF,
698 .pc_xdrressize = ST+WC,
699 },
700 [NFS3PROC_LOOKUP] = {
701 .pc_func = (svc_procfunc) nfsd3_proc_lookup,
702 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
703 .pc_encode = (kxdrproc_t) nfs3svc_encode_diropres,
704 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
705 .pc_argsize = sizeof(struct nfsd3_diropargs),
706 .pc_ressize = sizeof(struct nfsd3_diropres),
707 .pc_cachetype = RC_NOCACHE,
708 .pc_xdrressize = ST+FH+pAT+pAT,
709 },
710 [NFS3PROC_ACCESS] = {
711 .pc_func = (svc_procfunc) nfsd3_proc_access,
712 .pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs,
713 .pc_encode = (kxdrproc_t) nfs3svc_encode_accessres,
714 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
715 .pc_argsize = sizeof(struct nfsd3_accessargs),
716 .pc_ressize = sizeof(struct nfsd3_accessres),
717 .pc_cachetype = RC_NOCACHE,
718 .pc_xdrressize = ST+pAT+1,
719 },
720 [NFS3PROC_READLINK] = {
721 .pc_func = (svc_procfunc) nfsd3_proc_readlink,
722 .pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs,
723 .pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres,
724 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
725 .pc_argsize = sizeof(struct nfsd3_readlinkargs),
726 .pc_ressize = sizeof(struct nfsd3_readlinkres),
727 .pc_cachetype = RC_NOCACHE,
728 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
729 },
730 [NFS3PROC_READ] = {
731 .pc_func = (svc_procfunc) nfsd3_proc_read,
732 .pc_decode = (kxdrproc_t) nfs3svc_decode_readargs,
733 .pc_encode = (kxdrproc_t) nfs3svc_encode_readres,
734 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
735 .pc_argsize = sizeof(struct nfsd3_readargs),
736 .pc_ressize = sizeof(struct nfsd3_readres),
737 .pc_cachetype = RC_NOCACHE,
738 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
739 },
740 [NFS3PROC_WRITE] = {
741 .pc_func = (svc_procfunc) nfsd3_proc_write,
742 .pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs,
743 .pc_encode = (kxdrproc_t) nfs3svc_encode_writeres,
744 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
745 .pc_argsize = sizeof(struct nfsd3_writeargs),
746 .pc_ressize = sizeof(struct nfsd3_writeres),
747 .pc_cachetype = RC_REPLBUFF,
748 .pc_xdrressize = ST+WC+4,
749 },
750 [NFS3PROC_CREATE] = {
751 .pc_func = (svc_procfunc) nfsd3_proc_create,
752 .pc_decode = (kxdrproc_t) nfs3svc_decode_createargs,
753 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
754 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
755 .pc_argsize = sizeof(struct nfsd3_createargs),
756 .pc_ressize = sizeof(struct nfsd3_createres),
757 .pc_cachetype = RC_REPLBUFF,
758 .pc_xdrressize = ST+(1+FH+pAT)+WC,
759 },
760 [NFS3PROC_MKDIR] = {
761 .pc_func = (svc_procfunc) nfsd3_proc_mkdir,
762 .pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs,
763 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
764 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
765 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
766 .pc_ressize = sizeof(struct nfsd3_createres),
767 .pc_cachetype = RC_REPLBUFF,
768 .pc_xdrressize = ST+(1+FH+pAT)+WC,
769 },
770 [NFS3PROC_SYMLINK] = {
771 .pc_func = (svc_procfunc) nfsd3_proc_symlink,
772 .pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs,
773 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
774 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
775 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
776 .pc_ressize = sizeof(struct nfsd3_createres),
777 .pc_cachetype = RC_REPLBUFF,
778 .pc_xdrressize = ST+(1+FH+pAT)+WC,
779 },
780 [NFS3PROC_MKNOD] = {
781 .pc_func = (svc_procfunc) nfsd3_proc_mknod,
782 .pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs,
783 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
784 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
785 .pc_argsize = sizeof(struct nfsd3_mknodargs),
786 .pc_ressize = sizeof(struct nfsd3_createres),
787 .pc_cachetype = RC_REPLBUFF,
788 .pc_xdrressize = ST+(1+FH+pAT)+WC,
789 },
790 [NFS3PROC_REMOVE] = {
791 .pc_func = (svc_procfunc) nfsd3_proc_remove,
792 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
793 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
794 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
795 .pc_argsize = sizeof(struct nfsd3_diropargs),
796 .pc_ressize = sizeof(struct nfsd3_wccstatres),
797 .pc_cachetype = RC_REPLBUFF,
798 .pc_xdrressize = ST+WC,
799 },
800 [NFS3PROC_RMDIR] = {
801 .pc_func = (svc_procfunc) nfsd3_proc_rmdir,
802 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
803 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
804 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
805 .pc_argsize = sizeof(struct nfsd3_diropargs),
806 .pc_ressize = sizeof(struct nfsd3_wccstatres),
807 .pc_cachetype = RC_REPLBUFF,
808 .pc_xdrressize = ST+WC,
809 },
810 [NFS3PROC_RENAME] = {
811 .pc_func = (svc_procfunc) nfsd3_proc_rename,
812 .pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs,
813 .pc_encode = (kxdrproc_t) nfs3svc_encode_renameres,
814 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
815 .pc_argsize = sizeof(struct nfsd3_renameargs),
816 .pc_ressize = sizeof(struct nfsd3_renameres),
817 .pc_cachetype = RC_REPLBUFF,
818 .pc_xdrressize = ST+WC+WC,
819 },
820 [NFS3PROC_LINK] = {
821 .pc_func = (svc_procfunc) nfsd3_proc_link,
822 .pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs,
823 .pc_encode = (kxdrproc_t) nfs3svc_encode_linkres,
824 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
825 .pc_argsize = sizeof(struct nfsd3_linkargs),
826 .pc_ressize = sizeof(struct nfsd3_linkres),
827 .pc_cachetype = RC_REPLBUFF,
828 .pc_xdrressize = ST+pAT+WC,
829 },
830 [NFS3PROC_READDIR] = {
831 .pc_func = (svc_procfunc) nfsd3_proc_readdir,
832 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs,
833 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
834 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
835 .pc_argsize = sizeof(struct nfsd3_readdirargs),
836 .pc_ressize = sizeof(struct nfsd3_readdirres),
837 .pc_cachetype = RC_NOCACHE,
838 },
839 [NFS3PROC_READDIRPLUS] = {
840 .pc_func = (svc_procfunc) nfsd3_proc_readdirplus,
841 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs,
842 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
843 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
844 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
845 .pc_ressize = sizeof(struct nfsd3_readdirres),
846 .pc_cachetype = RC_NOCACHE,
847 },
848 [NFS3PROC_FSSTAT] = {
849 .pc_func = (svc_procfunc) nfsd3_proc_fsstat,
850 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
851 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres,
852 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
853 .pc_ressize = sizeof(struct nfsd3_fsstatres),
854 .pc_cachetype = RC_NOCACHE,
855 .pc_xdrressize = ST+pAT+2*6+1,
856 },
857 [NFS3PROC_FSINFO] = {
858 .pc_func = (svc_procfunc) nfsd3_proc_fsinfo,
859 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
860 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores,
861 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
862 .pc_ressize = sizeof(struct nfsd3_fsinfores),
863 .pc_cachetype = RC_NOCACHE,
864 .pc_xdrressize = ST+pAT+12,
865 },
866 [NFS3PROC_PATHCONF] = {
867 .pc_func = (svc_procfunc) nfsd3_proc_pathconf,
868 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
869 .pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres,
870 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
871 .pc_ressize = sizeof(struct nfsd3_pathconfres),
872 .pc_cachetype = RC_NOCACHE,
873 .pc_xdrressize = ST+pAT+6,
874 },
875 [NFS3PROC_COMMIT] = {
876 .pc_func = (svc_procfunc) nfsd3_proc_commit,
877 .pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs,
878 .pc_encode = (kxdrproc_t) nfs3svc_encode_commitres,
879 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
880 .pc_argsize = sizeof(struct nfsd3_commitargs),
881 .pc_ressize = sizeof(struct nfsd3_commitres),
882 .pc_cachetype = RC_NOCACHE,
883 .pc_xdrressize = ST+WC+2,
884 },
885};
886
887struct svc_version nfsd_version3 = {
888 .vs_vers = 3,
889 .vs_nproc = 22,
890 .vs_proc = nfsd_procedures3,
891 .vs_dispatch = nfsd_dispatch,
892 .vs_xdrsize = NFS3_SVC_XDRSIZE,
893};
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};