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