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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 &resp->eof);
177 RETURN_STATUS(nfserr);
178}
179
180/*
181 * Write data to a file
182 */
183static __be32
184nfsd3_proc_write(struct svc_rqst *rqstp)
185{
186 struct nfsd3_writeargs *argp = rqstp->rq_argp;
187 struct nfsd3_writeres *resp = rqstp->rq_resp;
188 __be32 nfserr;
189 unsigned long cnt = argp->len;
190 unsigned int nvecs;
191
192 dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
193 SVCFH_fmt(&argp->fh),
194 argp->len,
195 (unsigned long long) argp->offset,
196 argp->stable? " stable" : "");
197
198 fh_copy(&resp->fh, &argp->fh);
199 resp->committed = argp->stable;
200 nvecs = svc_fill_write_vector(rqstp, rqstp->rq_arg.pages,
201 &argp->first, cnt);
202 if (!nvecs)
203 RETURN_STATUS(nfserr_io);
204 nfserr = nfsd_write(rqstp, &resp->fh, argp->offset,
205 rqstp->rq_vec, nvecs, &cnt,
206 resp->committed, resp->verf);
207 resp->count = cnt;
208 RETURN_STATUS(nfserr);
209}
210
211/*
212 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
213 * At least in theory; we'll see how it fares in practice when the
214 * first reports about SunOS compatibility problems start to pour in...
215 */
216static __be32
217nfsd3_proc_create(struct svc_rqst *rqstp)
218{
219 struct nfsd3_createargs *argp = rqstp->rq_argp;
220 struct nfsd3_diropres *resp = rqstp->rq_resp;
221 svc_fh *dirfhp, *newfhp = NULL;
222 struct iattr *attr;
223 __be32 nfserr;
224
225 dprintk("nfsd: CREATE(3) %s %.*s\n",
226 SVCFH_fmt(&argp->fh),
227 argp->len,
228 argp->name);
229
230 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
231 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
232 attr = &argp->attrs;
233
234 /* Unfudge the mode bits */
235 attr->ia_mode &= ~S_IFMT;
236 if (!(attr->ia_valid & ATTR_MODE)) {
237 attr->ia_valid |= ATTR_MODE;
238 attr->ia_mode = S_IFREG;
239 } else {
240 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
241 }
242
243 /* Now create the file and set attributes */
244 nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
245 attr, newfhp,
246 argp->createmode, (u32 *)argp->verf, NULL, NULL);
247
248 RETURN_STATUS(nfserr);
249}
250
251/*
252 * Make directory. This operation is not idempotent.
253 */
254static __be32
255nfsd3_proc_mkdir(struct svc_rqst *rqstp)
256{
257 struct nfsd3_createargs *argp = rqstp->rq_argp;
258 struct nfsd3_diropres *resp = rqstp->rq_resp;
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)
277{
278 struct nfsd3_symlinkargs *argp = rqstp->rq_argp;
279 struct nfsd3_diropres *resp = rqstp->rq_resp;
280 __be32 nfserr;
281
282 if (argp->tlen == 0)
283 RETURN_STATUS(nfserr_inval);
284 if (argp->tlen > NFS3_MAXPATHLEN)
285 RETURN_STATUS(nfserr_nametoolong);
286
287 argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,
288 page_address(rqstp->rq_arg.pages[0]),
289 argp->tlen);
290 if (IS_ERR(argp->tname))
291 RETURN_STATUS(nfserrno(PTR_ERR(argp->tname)));
292
293 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
294 SVCFH_fmt(&argp->ffh),
295 argp->flen, argp->fname,
296 argp->tlen, argp->tname);
297
298 fh_copy(&resp->dirfh, &argp->ffh);
299 fh_init(&resp->fh, NFS3_FHSIZE);
300 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
301 argp->tname, &resp->fh);
302 kfree(argp->tname);
303 RETURN_STATUS(nfserr);
304}
305
306/*
307 * Make socket/fifo/device.
308 */
309static __be32
310nfsd3_proc_mknod(struct svc_rqst *rqstp)
311{
312 struct nfsd3_mknodargs *argp = rqstp->rq_argp;
313 struct nfsd3_diropres *resp = rqstp->rq_resp;
314 __be32 nfserr;
315 int type;
316 dev_t rdev = 0;
317
318 dprintk("nfsd: MKNOD(3) %s %.*s\n",
319 SVCFH_fmt(&argp->fh),
320 argp->len,
321 argp->name);
322
323 fh_copy(&resp->dirfh, &argp->fh);
324 fh_init(&resp->fh, NFS3_FHSIZE);
325
326 if (argp->ftype == 0 || argp->ftype >= NF3BAD)
327 RETURN_STATUS(nfserr_inval);
328 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
329 rdev = MKDEV(argp->major, argp->minor);
330 if (MAJOR(rdev) != argp->major ||
331 MINOR(rdev) != argp->minor)
332 RETURN_STATUS(nfserr_inval);
333 } else
334 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
335 RETURN_STATUS(nfserr_inval);
336
337 type = nfs3_ftypes[argp->ftype];
338 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
339 &argp->attrs, type, rdev, &resp->fh);
340 fh_unlock(&resp->dirfh);
341 RETURN_STATUS(nfserr);
342}
343
344/*
345 * Remove file/fifo/socket etc.
346 */
347static __be32
348nfsd3_proc_remove(struct svc_rqst *rqstp)
349{
350 struct nfsd3_diropargs *argp = rqstp->rq_argp;
351 struct nfsd3_attrstat *resp = rqstp->rq_resp;
352 __be32 nfserr;
353
354 dprintk("nfsd: REMOVE(3) %s %.*s\n",
355 SVCFH_fmt(&argp->fh),
356 argp->len,
357 argp->name);
358
359 /* Unlink. -S_IFDIR means file must not be a directory */
360 fh_copy(&resp->fh, &argp->fh);
361 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
362 fh_unlock(&resp->fh);
363 RETURN_STATUS(nfserr);
364}
365
366/*
367 * Remove a directory
368 */
369static __be32
370nfsd3_proc_rmdir(struct svc_rqst *rqstp)
371{
372 struct nfsd3_diropargs *argp = rqstp->rq_argp;
373 struct nfsd3_attrstat *resp = rqstp->rq_resp;
374 __be32 nfserr;
375
376 dprintk("nfsd: RMDIR(3) %s %.*s\n",
377 SVCFH_fmt(&argp->fh),
378 argp->len,
379 argp->name);
380
381 fh_copy(&resp->fh, &argp->fh);
382 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
383 fh_unlock(&resp->fh);
384 RETURN_STATUS(nfserr);
385}
386
387static __be32
388nfsd3_proc_rename(struct svc_rqst *rqstp)
389{
390 struct nfsd3_renameargs *argp = rqstp->rq_argp;
391 struct nfsd3_renameres *resp = rqstp->rq_resp;
392 __be32 nfserr;
393
394 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
395 SVCFH_fmt(&argp->ffh),
396 argp->flen,
397 argp->fname);
398 dprintk("nfsd: -> %s %.*s\n",
399 SVCFH_fmt(&argp->tfh),
400 argp->tlen,
401 argp->tname);
402
403 fh_copy(&resp->ffh, &argp->ffh);
404 fh_copy(&resp->tfh, &argp->tfh);
405 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
406 &resp->tfh, argp->tname, argp->tlen);
407 RETURN_STATUS(nfserr);
408}
409
410static __be32
411nfsd3_proc_link(struct svc_rqst *rqstp)
412{
413 struct nfsd3_linkargs *argp = rqstp->rq_argp;
414 struct nfsd3_linkres *resp = rqstp->rq_resp;
415 __be32 nfserr;
416
417 dprintk("nfsd: LINK(3) %s ->\n",
418 SVCFH_fmt(&argp->ffh));
419 dprintk("nfsd: -> %s %.*s\n",
420 SVCFH_fmt(&argp->tfh),
421 argp->tlen,
422 argp->tname);
423
424 fh_copy(&resp->fh, &argp->ffh);
425 fh_copy(&resp->tfh, &argp->tfh);
426 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
427 &resp->fh);
428 RETURN_STATUS(nfserr);
429}
430
431/*
432 * Read a portion of a directory.
433 */
434static __be32
435nfsd3_proc_readdir(struct svc_rqst *rqstp)
436{
437 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
438 struct nfsd3_readdirres *resp = rqstp->rq_resp;
439 __be32 nfserr;
440 int count = 0;
441 struct page **p;
442 caddr_t page_addr = NULL;
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 count = 0;
463 for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) {
464 page_addr = page_address(*p);
465
466 if (((caddr_t)resp->buffer >= page_addr) &&
467 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
468 count += (caddr_t)resp->buffer - page_addr;
469 break;
470 }
471 count += PAGE_SIZE;
472 }
473 resp->count = count >> 2;
474 if (resp->offset) {
475 loff_t offset = argp->cookie;
476
477 if (unlikely(resp->offset1)) {
478 /* we ended up with offset on a page boundary */
479 *resp->offset = htonl(offset >> 32);
480 *resp->offset1 = htonl(offset & 0xffffffff);
481 resp->offset1 = NULL;
482 } else {
483 xdr_encode_hyper(resp->offset, offset);
484 }
485 resp->offset = NULL;
486 }
487
488 RETURN_STATUS(nfserr);
489}
490
491/*
492 * Read a portion of a directory, including file handles and attrs.
493 * For now, we choose to ignore the dircount parameter.
494 */
495static __be32
496nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
497{
498 struct nfsd3_readdirargs *argp = rqstp->rq_argp;
499 struct nfsd3_readdirres *resp = rqstp->rq_resp;
500 __be32 nfserr;
501 int count = 0;
502 loff_t offset;
503 struct page **p;
504 caddr_t page_addr = NULL;
505
506 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
507 SVCFH_fmt(&argp->fh),
508 argp->count, (u32) argp->cookie);
509
510 /* Convert byte count to number of words (i.e. >> 2),
511 * and reserve room for the NULL ptr & eof flag (-2 words) */
512 resp->count = (argp->count >> 2) - 2;
513
514 /* Read directory and encode entries on the fly */
515 fh_copy(&resp->fh, &argp->fh);
516
517 resp->common.err = nfs_ok;
518 resp->buffer = argp->buffer;
519 resp->buflen = resp->count;
520 resp->rqstp = rqstp;
521 offset = argp->cookie;
522
523 nfserr = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
524 if (nfserr)
525 RETURN_STATUS(nfserr);
526
527 if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS)
528 RETURN_STATUS(nfserr_notsupp);
529
530 nfserr = nfsd_readdir(rqstp, &resp->fh,
531 &offset,
532 &resp->common,
533 nfs3svc_encode_entry_plus);
534 memcpy(resp->verf, argp->verf, 8);
535 for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) {
536 page_addr = page_address(*p);
537
538 if (((caddr_t)resp->buffer >= page_addr) &&
539 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
540 count += (caddr_t)resp->buffer - page_addr;
541 break;
542 }
543 count += PAGE_SIZE;
544 }
545 resp->count = count >> 2;
546 if (resp->offset) {
547 if (unlikely(resp->offset1)) {
548 /* we ended up with offset on a page boundary */
549 *resp->offset = htonl(offset >> 32);
550 *resp->offset1 = htonl(offset & 0xffffffff);
551 resp->offset1 = NULL;
552 } else {
553 xdr_encode_hyper(resp->offset, offset);
554 }
555 resp->offset = NULL;
556 }
557
558 RETURN_STATUS(nfserr);
559}
560
561/*
562 * Get file system stats
563 */
564static __be32
565nfsd3_proc_fsstat(struct svc_rqst *rqstp)
566{
567 struct nfsd_fhandle *argp = rqstp->rq_argp;
568 struct nfsd3_fsstatres *resp = rqstp->rq_resp;
569 __be32 nfserr;
570
571 dprintk("nfsd: FSSTAT(3) %s\n",
572 SVCFH_fmt(&argp->fh));
573
574 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
575 fh_put(&argp->fh);
576 RETURN_STATUS(nfserr);
577}
578
579/*
580 * Get file system info
581 */
582static __be32
583nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
584{
585 struct nfsd_fhandle *argp = rqstp->rq_argp;
586 struct nfsd3_fsinfores *resp = rqstp->rq_resp;
587 __be32 nfserr;
588 u32 max_blocksize = svc_max_payload(rqstp);
589
590 dprintk("nfsd: FSINFO(3) %s\n",
591 SVCFH_fmt(&argp->fh));
592
593 resp->f_rtmax = max_blocksize;
594 resp->f_rtpref = max_blocksize;
595 resp->f_rtmult = PAGE_SIZE;
596 resp->f_wtmax = max_blocksize;
597 resp->f_wtpref = max_blocksize;
598 resp->f_wtmult = PAGE_SIZE;
599 resp->f_dtpref = max_blocksize;
600 resp->f_maxfilesize = ~(u32) 0;
601 resp->f_properties = NFS3_FSF_DEFAULT;
602
603 nfserr = fh_verify(rqstp, &argp->fh, 0,
604 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
605
606 /* Check special features of the file system. May request
607 * different read/write sizes for file systems known to have
608 * problems with large blocks */
609 if (nfserr == 0) {
610 struct super_block *sb = argp->fh.fh_dentry->d_sb;
611
612 /* Note that we don't care for remote fs's here */
613 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
614 resp->f_properties = NFS3_FSF_BILLYBOY;
615 }
616 resp->f_maxfilesize = sb->s_maxbytes;
617 }
618
619 fh_put(&argp->fh);
620 RETURN_STATUS(nfserr);
621}
622
623/*
624 * Get pathconf info for the specified file
625 */
626static __be32
627nfsd3_proc_pathconf(struct svc_rqst *rqstp)
628{
629 struct nfsd_fhandle *argp = rqstp->rq_argp;
630 struct nfsd3_pathconfres *resp = rqstp->rq_resp;
631 __be32 nfserr;
632
633 dprintk("nfsd: PATHCONF(3) %s\n",
634 SVCFH_fmt(&argp->fh));
635
636 /* Set default pathconf */
637 resp->p_link_max = 255; /* at least */
638 resp->p_name_max = 255; /* at least */
639 resp->p_no_trunc = 0;
640 resp->p_chown_restricted = 1;
641 resp->p_case_insensitive = 0;
642 resp->p_case_preserving = 1;
643
644 nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
645
646 if (nfserr == 0) {
647 struct super_block *sb = argp->fh.fh_dentry->d_sb;
648
649 /* Note that we don't care for remote fs's here */
650 switch (sb->s_magic) {
651 case EXT2_SUPER_MAGIC:
652 resp->p_link_max = EXT2_LINK_MAX;
653 resp->p_name_max = EXT2_NAME_LEN;
654 break;
655 case MSDOS_SUPER_MAGIC:
656 resp->p_case_insensitive = 1;
657 resp->p_case_preserving = 0;
658 break;
659 }
660 }
661
662 fh_put(&argp->fh);
663 RETURN_STATUS(nfserr);
664}
665
666
667/*
668 * Commit a file (range) to stable storage.
669 */
670static __be32
671nfsd3_proc_commit(struct svc_rqst *rqstp)
672{
673 struct nfsd3_commitargs *argp = rqstp->rq_argp;
674 struct nfsd3_commitres *resp = rqstp->rq_resp;
675 __be32 nfserr;
676
677 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
678 SVCFH_fmt(&argp->fh),
679 argp->count,
680 (unsigned long long) argp->offset);
681
682 if (argp->offset > NFS_OFFSET_MAX)
683 RETURN_STATUS(nfserr_inval);
684
685 fh_copy(&resp->fh, &argp->fh);
686 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count,
687 resp->verf);
688
689 RETURN_STATUS(nfserr);
690}
691
692
693/*
694 * NFSv3 Server procedures.
695 * Only the results of non-idempotent operations are cached.
696 */
697#define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle
698#define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
699#define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
700#define nfsd3_mkdirargs nfsd3_createargs
701#define nfsd3_readdirplusargs nfsd3_readdirargs
702#define nfsd3_fhandleargs nfsd_fhandle
703#define nfsd3_fhandleres nfsd3_attrstat
704#define nfsd3_attrstatres nfsd3_attrstat
705#define nfsd3_wccstatres nfsd3_attrstat
706#define nfsd3_createres nfsd3_diropres
707#define nfsd3_voidres nfsd3_voidargs
708struct nfsd3_voidargs { int dummy; };
709
710#define ST 1 /* status*/
711#define FH 17 /* filehandle with length */
712#define AT 21 /* attributes */
713#define pAT (1+AT) /* post attributes - conditional */
714#define WC (7+pAT) /* WCC attributes */
715
716static const struct svc_procedure nfsd_procedures3[22] = {
717 [NFS3PROC_NULL] = {
718 .pc_func = nfsd3_proc_null,
719 .pc_encode = nfs3svc_encode_voidres,
720 .pc_argsize = sizeof(struct nfsd3_voidargs),
721 .pc_ressize = sizeof(struct nfsd3_voidres),
722 .pc_cachetype = RC_NOCACHE,
723 .pc_xdrressize = ST,
724 },
725 [NFS3PROC_GETATTR] = {
726 .pc_func = nfsd3_proc_getattr,
727 .pc_decode = nfs3svc_decode_fhandleargs,
728 .pc_encode = nfs3svc_encode_attrstatres,
729 .pc_release = nfs3svc_release_fhandle,
730 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
731 .pc_ressize = sizeof(struct nfsd3_attrstatres),
732 .pc_cachetype = RC_NOCACHE,
733 .pc_xdrressize = ST+AT,
734 },
735 [NFS3PROC_SETATTR] = {
736 .pc_func = nfsd3_proc_setattr,
737 .pc_decode = nfs3svc_decode_sattrargs,
738 .pc_encode = nfs3svc_encode_wccstatres,
739 .pc_release = nfs3svc_release_fhandle,
740 .pc_argsize = sizeof(struct nfsd3_sattrargs),
741 .pc_ressize = sizeof(struct nfsd3_wccstatres),
742 .pc_cachetype = RC_REPLBUFF,
743 .pc_xdrressize = ST+WC,
744 },
745 [NFS3PROC_LOOKUP] = {
746 .pc_func = nfsd3_proc_lookup,
747 .pc_decode = nfs3svc_decode_diropargs,
748 .pc_encode = nfs3svc_encode_diropres,
749 .pc_release = nfs3svc_release_fhandle2,
750 .pc_argsize = sizeof(struct nfsd3_diropargs),
751 .pc_ressize = sizeof(struct nfsd3_diropres),
752 .pc_cachetype = RC_NOCACHE,
753 .pc_xdrressize = ST+FH+pAT+pAT,
754 },
755 [NFS3PROC_ACCESS] = {
756 .pc_func = nfsd3_proc_access,
757 .pc_decode = nfs3svc_decode_accessargs,
758 .pc_encode = nfs3svc_encode_accessres,
759 .pc_release = nfs3svc_release_fhandle,
760 .pc_argsize = sizeof(struct nfsd3_accessargs),
761 .pc_ressize = sizeof(struct nfsd3_accessres),
762 .pc_cachetype = RC_NOCACHE,
763 .pc_xdrressize = ST+pAT+1,
764 },
765 [NFS3PROC_READLINK] = {
766 .pc_func = nfsd3_proc_readlink,
767 .pc_decode = nfs3svc_decode_readlinkargs,
768 .pc_encode = nfs3svc_encode_readlinkres,
769 .pc_release = nfs3svc_release_fhandle,
770 .pc_argsize = sizeof(struct nfsd3_readlinkargs),
771 .pc_ressize = sizeof(struct nfsd3_readlinkres),
772 .pc_cachetype = RC_NOCACHE,
773 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
774 },
775 [NFS3PROC_READ] = {
776 .pc_func = nfsd3_proc_read,
777 .pc_decode = nfs3svc_decode_readargs,
778 .pc_encode = nfs3svc_encode_readres,
779 .pc_release = nfs3svc_release_fhandle,
780 .pc_argsize = sizeof(struct nfsd3_readargs),
781 .pc_ressize = sizeof(struct nfsd3_readres),
782 .pc_cachetype = RC_NOCACHE,
783 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
784 },
785 [NFS3PROC_WRITE] = {
786 .pc_func = nfsd3_proc_write,
787 .pc_decode = nfs3svc_decode_writeargs,
788 .pc_encode = nfs3svc_encode_writeres,
789 .pc_release = nfs3svc_release_fhandle,
790 .pc_argsize = sizeof(struct nfsd3_writeargs),
791 .pc_ressize = sizeof(struct nfsd3_writeres),
792 .pc_cachetype = RC_REPLBUFF,
793 .pc_xdrressize = ST+WC+4,
794 },
795 [NFS3PROC_CREATE] = {
796 .pc_func = nfsd3_proc_create,
797 .pc_decode = nfs3svc_decode_createargs,
798 .pc_encode = nfs3svc_encode_createres,
799 .pc_release = nfs3svc_release_fhandle2,
800 .pc_argsize = sizeof(struct nfsd3_createargs),
801 .pc_ressize = sizeof(struct nfsd3_createres),
802 .pc_cachetype = RC_REPLBUFF,
803 .pc_xdrressize = ST+(1+FH+pAT)+WC,
804 },
805 [NFS3PROC_MKDIR] = {
806 .pc_func = nfsd3_proc_mkdir,
807 .pc_decode = nfs3svc_decode_mkdirargs,
808 .pc_encode = nfs3svc_encode_createres,
809 .pc_release = nfs3svc_release_fhandle2,
810 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
811 .pc_ressize = sizeof(struct nfsd3_createres),
812 .pc_cachetype = RC_REPLBUFF,
813 .pc_xdrressize = ST+(1+FH+pAT)+WC,
814 },
815 [NFS3PROC_SYMLINK] = {
816 .pc_func = nfsd3_proc_symlink,
817 .pc_decode = nfs3svc_decode_symlinkargs,
818 .pc_encode = nfs3svc_encode_createres,
819 .pc_release = nfs3svc_release_fhandle2,
820 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
821 .pc_ressize = sizeof(struct nfsd3_createres),
822 .pc_cachetype = RC_REPLBUFF,
823 .pc_xdrressize = ST+(1+FH+pAT)+WC,
824 },
825 [NFS3PROC_MKNOD] = {
826 .pc_func = nfsd3_proc_mknod,
827 .pc_decode = nfs3svc_decode_mknodargs,
828 .pc_encode = nfs3svc_encode_createres,
829 .pc_release = nfs3svc_release_fhandle2,
830 .pc_argsize = sizeof(struct nfsd3_mknodargs),
831 .pc_ressize = sizeof(struct nfsd3_createres),
832 .pc_cachetype = RC_REPLBUFF,
833 .pc_xdrressize = ST+(1+FH+pAT)+WC,
834 },
835 [NFS3PROC_REMOVE] = {
836 .pc_func = nfsd3_proc_remove,
837 .pc_decode = nfs3svc_decode_diropargs,
838 .pc_encode = nfs3svc_encode_wccstatres,
839 .pc_release = nfs3svc_release_fhandle,
840 .pc_argsize = sizeof(struct nfsd3_diropargs),
841 .pc_ressize = sizeof(struct nfsd3_wccstatres),
842 .pc_cachetype = RC_REPLBUFF,
843 .pc_xdrressize = ST+WC,
844 },
845 [NFS3PROC_RMDIR] = {
846 .pc_func = nfsd3_proc_rmdir,
847 .pc_decode = nfs3svc_decode_diropargs,
848 .pc_encode = nfs3svc_encode_wccstatres,
849 .pc_release = nfs3svc_release_fhandle,
850 .pc_argsize = sizeof(struct nfsd3_diropargs),
851 .pc_ressize = sizeof(struct nfsd3_wccstatres),
852 .pc_cachetype = RC_REPLBUFF,
853 .pc_xdrressize = ST+WC,
854 },
855 [NFS3PROC_RENAME] = {
856 .pc_func = nfsd3_proc_rename,
857 .pc_decode = nfs3svc_decode_renameargs,
858 .pc_encode = nfs3svc_encode_renameres,
859 .pc_release = nfs3svc_release_fhandle2,
860 .pc_argsize = sizeof(struct nfsd3_renameargs),
861 .pc_ressize = sizeof(struct nfsd3_renameres),
862 .pc_cachetype = RC_REPLBUFF,
863 .pc_xdrressize = ST+WC+WC,
864 },
865 [NFS3PROC_LINK] = {
866 .pc_func = nfsd3_proc_link,
867 .pc_decode = nfs3svc_decode_linkargs,
868 .pc_encode = nfs3svc_encode_linkres,
869 .pc_release = nfs3svc_release_fhandle2,
870 .pc_argsize = sizeof(struct nfsd3_linkargs),
871 .pc_ressize = sizeof(struct nfsd3_linkres),
872 .pc_cachetype = RC_REPLBUFF,
873 .pc_xdrressize = ST+pAT+WC,
874 },
875 [NFS3PROC_READDIR] = {
876 .pc_func = nfsd3_proc_readdir,
877 .pc_decode = nfs3svc_decode_readdirargs,
878 .pc_encode = nfs3svc_encode_readdirres,
879 .pc_release = nfs3svc_release_fhandle,
880 .pc_argsize = sizeof(struct nfsd3_readdirargs),
881 .pc_ressize = sizeof(struct nfsd3_readdirres),
882 .pc_cachetype = RC_NOCACHE,
883 },
884 [NFS3PROC_READDIRPLUS] = {
885 .pc_func = nfsd3_proc_readdirplus,
886 .pc_decode = nfs3svc_decode_readdirplusargs,
887 .pc_encode = nfs3svc_encode_readdirres,
888 .pc_release = nfs3svc_release_fhandle,
889 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
890 .pc_ressize = sizeof(struct nfsd3_readdirres),
891 .pc_cachetype = RC_NOCACHE,
892 },
893 [NFS3PROC_FSSTAT] = {
894 .pc_func = nfsd3_proc_fsstat,
895 .pc_decode = nfs3svc_decode_fhandleargs,
896 .pc_encode = nfs3svc_encode_fsstatres,
897 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
898 .pc_ressize = sizeof(struct nfsd3_fsstatres),
899 .pc_cachetype = RC_NOCACHE,
900 .pc_xdrressize = ST+pAT+2*6+1,
901 },
902 [NFS3PROC_FSINFO] = {
903 .pc_func = nfsd3_proc_fsinfo,
904 .pc_decode = nfs3svc_decode_fhandleargs,
905 .pc_encode = nfs3svc_encode_fsinfores,
906 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
907 .pc_ressize = sizeof(struct nfsd3_fsinfores),
908 .pc_cachetype = RC_NOCACHE,
909 .pc_xdrressize = ST+pAT+12,
910 },
911 [NFS3PROC_PATHCONF] = {
912 .pc_func = nfsd3_proc_pathconf,
913 .pc_decode = nfs3svc_decode_fhandleargs,
914 .pc_encode = nfs3svc_encode_pathconfres,
915 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
916 .pc_ressize = sizeof(struct nfsd3_pathconfres),
917 .pc_cachetype = RC_NOCACHE,
918 .pc_xdrressize = ST+pAT+6,
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 },
930};
931
932static unsigned int nfsd_count3[ARRAY_SIZE(nfsd_procedures3)];
933const struct svc_version nfsd_version3 = {
934 .vs_vers = 3,
935 .vs_nproc = 22,
936 .vs_proc = nfsd_procedures3,
937 .vs_dispatch = nfsd_dispatch,
938 .vs_count = nfsd_count3,
939 .vs_xdrsize = NFS3_SVC_XDRSIZE,
940};