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x86/amd-iommu: Add per IOMMU reference counting
[linux/fpc-iii.git] / fs / nfsd / nfs3proc.c
bloba713c418a92236651a7d6a1e3c7dc3353dbd7a36
1 /*
2 * linux/fs/nfsd/nfs3proc.c
3 *
4 * Process version 3 NFS requests.
5 *
6 * Copyright (C) 1996, 1997, 1998 Olaf Kirch <okir@monad.swb.de>
7 */
8
9 #include <linux/linkage.h>
10 #include <linux/time.h>
11 #include <linux/errno.h>
12 #include <linux/fs.h>
13 #include <linux/ext2_fs.h>
14 #include <linux/stat.h>
15 #include <linux/fcntl.h>
16 #include <linux/net.h>
17 #include <linux/in.h>
18 #include <linux/unistd.h>
19 #include <linux/slab.h>
20 #include <linux/major.h>
21 #include <linux/magic.h>
22
23 #include <linux/sunrpc/svc.h>
24 #include <linux/nfsd/nfsd.h>
25 #include <linux/nfsd/cache.h>
26 #include <linux/nfsd/xdr3.h>
27 #include <linux/nfs3.h>
28
29 #define NFSDDBG_FACILITY NFSDDBG_PROC
30
31 #define RETURN_STATUS(st) { resp->status = (st); return (st); }
32
33 static int nfs3_ftypes[] = {
34 0, /* NF3NON */
35 S_IFREG, /* NF3REG */
36 S_IFDIR, /* NF3DIR */
37 S_IFBLK, /* NF3BLK */
38 S_IFCHR, /* NF3CHR */
39 S_IFLNK, /* NF3LNK */
40 S_IFSOCK, /* NF3SOCK */
41 S_IFIFO, /* NF3FIFO */
42 };
43
44 /*
45 * NULL call.
46 */
47 static __be32
48 nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
49 {
50 return nfs_ok;
51 }
52
53 /*
54 * Get a file's attributes
55 */
56 static __be32
57 nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
58 struct nfsd3_attrstat *resp)
59 {
60 int err;
61 __be32 nfserr;
62
63 dprintk("nfsd: GETATTR(3) %s\n",
64 SVCFH_fmt(&argp->fh));
65
66 fh_copy(&resp->fh, &argp->fh);
67 nfserr = fh_verify(rqstp, &resp->fh, 0,
68 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
69 if (nfserr)
70 RETURN_STATUS(nfserr);
71
72 err = vfs_getattr(resp->fh.fh_export->ex_path.mnt,
73 resp->fh.fh_dentry, &resp->stat);
74 nfserr = nfserrno(err);
75
76 RETURN_STATUS(nfserr);
77 }
78
79 /*
80 * Set a file's attributes
81 */
82 static __be32
83 nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
84 struct nfsd3_attrstat *resp)
85 {
86 __be32 nfserr;
87
88 dprintk("nfsd: SETATTR(3) %s\n",
89 SVCFH_fmt(&argp->fh));
90
91 fh_copy(&resp->fh, &argp->fh);
92 nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
93 argp->check_guard, argp->guardtime);
94 RETURN_STATUS(nfserr);
95 }
96
97 /*
98 * Look up a path name component
99 */
100 static __be32
101 nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
102 struct nfsd3_diropres *resp)
103 {
104 __be32 nfserr;
105
106 dprintk("nfsd: LOOKUP(3) %s %.*s\n",
107 SVCFH_fmt(&argp->fh),
108 argp->len,
109 argp->name);
110
111 fh_copy(&resp->dirfh, &argp->fh);
112 fh_init(&resp->fh, NFS3_FHSIZE);
113
114 nfserr = nfsd_lookup(rqstp, &resp->dirfh,
115 argp->name,
116 argp->len,
117 &resp->fh);
118 RETURN_STATUS(nfserr);
119 }
120
121 /*
122 * Check file access
123 */
124 static __be32
125 nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
126 struct nfsd3_accessres *resp)
127 {
128 __be32 nfserr;
129
130 dprintk("nfsd: ACCESS(3) %s 0x%x\n",
131 SVCFH_fmt(&argp->fh),
132 argp->access);
133
134 fh_copy(&resp->fh, &argp->fh);
135 resp->access = argp->access;
136 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
137 RETURN_STATUS(nfserr);
138 }
139
140 /*
141 * Read a symlink.
142 */
143 static __be32
144 nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
145 struct nfsd3_readlinkres *resp)
146 {
147 __be32 nfserr;
148
149 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
150
151 /* Read the symlink. */
152 fh_copy(&resp->fh, &argp->fh);
153 resp->len = NFS3_MAXPATHLEN;
154 nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
155 RETURN_STATUS(nfserr);
156 }
157
158 /*
159 * Read a portion of a file.
160 */
161 static __be32
162 nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
163 struct nfsd3_readres *resp)
164 {
165 __be32 nfserr;
166 u32 max_blocksize = svc_max_payload(rqstp);
167
168 dprintk("nfsd: READ(3) %s %lu bytes at %lu\n",
169 SVCFH_fmt(&argp->fh),
170 (unsigned long) argp->count,
171 (unsigned long) argp->offset);
172
173 /* Obtain buffer pointer for payload.
174 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
175 * + 1 (xdr opaque byte count) = 26
176 */
177
178 resp->count = argp->count;
179 if (max_blocksize < resp->count)
180 resp->count = max_blocksize;
181
182 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
183
184 fh_copy(&resp->fh, &argp->fh);
185 nfserr = nfsd_read(rqstp, &resp->fh, NULL,
186 argp->offset,
187 rqstp->rq_vec, argp->vlen,
188 &resp->count);
189 if (nfserr == 0) {
190 struct inode *inode = resp->fh.fh_dentry->d_inode;
191
192 resp->eof = (argp->offset + resp->count) >= inode->i_size;
193 }
194
195 RETURN_STATUS(nfserr);
196 }
197
198 /*
199 * Write data to a file
200 */
201 static __be32
202 nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
203 struct nfsd3_writeres *resp)
204 {
205 __be32 nfserr;
206 unsigned long cnt = argp->len;
207
208 dprintk("nfsd: WRITE(3) %s %d bytes at %ld%s\n",
209 SVCFH_fmt(&argp->fh),
210 argp->len,
211 (unsigned long) argp->offset,
212 argp->stable? " stable" : "");
213
214 fh_copy(&resp->fh, &argp->fh);
215 resp->committed = argp->stable;
216 nfserr = nfsd_write(rqstp, &resp->fh, NULL,
217 argp->offset,
218 rqstp->rq_vec, argp->vlen,
219 &cnt,
220 &resp->committed);
221 resp->count = cnt;
222 RETURN_STATUS(nfserr);
223 }
224
225 /*
226 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
227 * At least in theory; we'll see how it fares in practice when the
228 * first reports about SunOS compatibility problems start to pour in...
229 */
230 static __be32
231 nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
232 struct nfsd3_diropres *resp)
233 {
234 svc_fh *dirfhp, *newfhp = NULL;
235 struct iattr *attr;
236 __be32 nfserr;
237
238 dprintk("nfsd: CREATE(3) %s %.*s\n",
239 SVCFH_fmt(&argp->fh),
240 argp->len,
241 argp->name);
242
243 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
244 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
245 attr = &argp->attrs;
246
247 /* Get the directory inode */
248 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_CREATE);
249 if (nfserr)
250 RETURN_STATUS(nfserr);
251
252 /* Unfudge the mode bits */
253 attr->ia_mode &= ~S_IFMT;
254 if (!(attr->ia_valid & ATTR_MODE)) {
255 attr->ia_valid |= ATTR_MODE;
256 attr->ia_mode = S_IFREG;
257 } else {
258 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
259 }
260
261 /* Now create the file and set attributes */
262 nfserr = nfsd_create_v3(rqstp, dirfhp, argp->name, argp->len,
263 attr, newfhp,
264 argp->createmode, argp->verf, NULL, NULL);
265
266 RETURN_STATUS(nfserr);
267 }
268
269 /*
270 * Make directory. This operation is not idempotent.
271 */
272 static __be32
273 nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
274 struct nfsd3_diropres *resp)
275 {
276 __be32 nfserr;
277
278 dprintk("nfsd: MKDIR(3) %s %.*s\n",
279 SVCFH_fmt(&argp->fh),
280 argp->len,
281 argp->name);
282
283 argp->attrs.ia_valid &= ~ATTR_SIZE;
284 fh_copy(&resp->dirfh, &argp->fh);
285 fh_init(&resp->fh, NFS3_FHSIZE);
286 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
287 &argp->attrs, S_IFDIR, 0, &resp->fh);
288
289 RETURN_STATUS(nfserr);
290 }
291
292 static __be32
293 nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
294 struct nfsd3_diropres *resp)
295 {
296 __be32 nfserr;
297
298 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
299 SVCFH_fmt(&argp->ffh),
300 argp->flen, argp->fname,
301 argp->tlen, argp->tname);
302
303 fh_copy(&resp->dirfh, &argp->ffh);
304 fh_init(&resp->fh, NFS3_FHSIZE);
305 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
306 argp->tname, argp->tlen,
307 &resp->fh, &argp->attrs);
308 RETURN_STATUS(nfserr);
309 }
310
311 /*
312 * Make socket/fifo/device.
313 */
314 static __be32
315 nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
316 struct nfsd3_diropres *resp)
317 {
318 __be32 nfserr;
319 int type;
320 dev_t rdev = 0;
321
322 dprintk("nfsd: MKNOD(3) %s %.*s\n",
323 SVCFH_fmt(&argp->fh),
324 argp->len,
325 argp->name);
326
327 fh_copy(&resp->dirfh, &argp->fh);
328 fh_init(&resp->fh, NFS3_FHSIZE);
329
330 if (argp->ftype == 0 || argp->ftype >= NF3BAD)
331 RETURN_STATUS(nfserr_inval);
332 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
333 rdev = MKDEV(argp->major, argp->minor);
334 if (MAJOR(rdev) != argp->major ||
335 MINOR(rdev) != argp->minor)
336 RETURN_STATUS(nfserr_inval);
337 } else
338 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
339 RETURN_STATUS(nfserr_inval);
340
341 type = nfs3_ftypes[argp->ftype];
342 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
343 &argp->attrs, type, rdev, &resp->fh);
344
345 RETURN_STATUS(nfserr);
346 }
347
348 /*
349 * Remove file/fifo/socket etc.
350 */
351 static __be32
352 nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
353 struct nfsd3_attrstat *resp)
354 {
355 __be32 nfserr;
356
357 dprintk("nfsd: REMOVE(3) %s %.*s\n",
358 SVCFH_fmt(&argp->fh),
359 argp->len,
360 argp->name);
361
362 /* Unlink. -S_IFDIR means file must not be a directory */
363 fh_copy(&resp->fh, &argp->fh);
364 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
365 RETURN_STATUS(nfserr);
366 }
367
368 /*
369 * Remove a directory
370 */
371 static __be32
372 nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
373 struct nfsd3_attrstat *resp)
374 {
375 __be32 nfserr;
376
377 dprintk("nfsd: RMDIR(3) %s %.*s\n",
378 SVCFH_fmt(&argp->fh),
379 argp->len,
380 argp->name);
381
382 fh_copy(&resp->fh, &argp->fh);
383 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
384 RETURN_STATUS(nfserr);
385 }
386
387 static __be32
388 nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
389 struct nfsd3_renameres *resp)
390 {
391 __be32 nfserr;
392
393 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
394 SVCFH_fmt(&argp->ffh),
395 argp->flen,
396 argp->fname);
397 dprintk("nfsd: -> %s %.*s\n",
398 SVCFH_fmt(&argp->tfh),
399 argp->tlen,
400 argp->tname);
401
402 fh_copy(&resp->ffh, &argp->ffh);
403 fh_copy(&resp->tfh, &argp->tfh);
404 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
405 &resp->tfh, argp->tname, argp->tlen);
406 RETURN_STATUS(nfserr);
407 }
408
409 static __be32
410 nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
411 struct nfsd3_linkres *resp)
412 {
413 __be32 nfserr;
414
415 dprintk("nfsd: LINK(3) %s ->\n",
416 SVCFH_fmt(&argp->ffh));
417 dprintk("nfsd: -> %s %.*s\n",
418 SVCFH_fmt(&argp->tfh),
419 argp->tlen,
420 argp->tname);
421
422 fh_copy(&resp->fh, &argp->ffh);
423 fh_copy(&resp->tfh, &argp->tfh);
424 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
425 &resp->fh);
426 RETURN_STATUS(nfserr);
427 }
428
429 /*
430 * Read a portion of a directory.
431 */
432 static __be32
433 nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
434 struct nfsd3_readdirres *resp)
435 {
436 __be32 nfserr;
437 int count;
438
439 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
440 SVCFH_fmt(&argp->fh),
441 argp->count, (u32) argp->cookie);
442
443 /* Make sure we've room for the NULL ptr & eof flag, and shrink to
444 * client read size */
445 count = (argp->count >> 2) - 2;
446
447 /* Read directory and encode entries on the fly */
448 fh_copy(&resp->fh, &argp->fh);
449
450 resp->buflen = count;
451 resp->common.err = nfs_ok;
452 resp->buffer = argp->buffer;
453 resp->rqstp = rqstp;
454 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie,
455 &resp->common, nfs3svc_encode_entry);
456 memcpy(resp->verf, argp->verf, 8);
457 resp->count = resp->buffer - argp->buffer;
458 if (resp->offset)
459 xdr_encode_hyper(resp->offset, argp->cookie);
460
461 RETURN_STATUS(nfserr);
462 }
463
464 /*
465 * Read a portion of a directory, including file handles and attrs.
466 * For now, we choose to ignore the dircount parameter.
467 */
468 static __be32
469 nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
470 struct nfsd3_readdirres *resp)
471 {
472 __be32 nfserr;
473 int count = 0;
474 loff_t offset;
475 int i;
476 caddr_t page_addr = NULL;
477
478 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
479 SVCFH_fmt(&argp->fh),
480 argp->count, (u32) argp->cookie);
481
482 /* Convert byte count to number of words (i.e. >> 2),
483 * and reserve room for the NULL ptr & eof flag (-2 words) */
484 resp->count = (argp->count >> 2) - 2;
485
486 /* Read directory and encode entries on the fly */
487 fh_copy(&resp->fh, &argp->fh);
488
489 resp->common.err = nfs_ok;
490 resp->buffer = argp->buffer;
491 resp->buflen = resp->count;
492 resp->rqstp = rqstp;
493 offset = argp->cookie;
494 nfserr = nfsd_readdir(rqstp, &resp->fh,
495 &offset,
496 &resp->common,
497 nfs3svc_encode_entry_plus);
498 memcpy(resp->verf, argp->verf, 8);
499 for (i=1; i<rqstp->rq_resused ; i++) {
500 page_addr = page_address(rqstp->rq_respages[i]);
501
502 if (((caddr_t)resp->buffer >= page_addr) &&
503 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
504 count += (caddr_t)resp->buffer - page_addr;
505 break;
506 }
507 count += PAGE_SIZE;
508 }
509 resp->count = count >> 2;
510 if (resp->offset) {
511 if (unlikely(resp->offset1)) {
512 /* we ended up with offset on a page boundary */
513 *resp->offset = htonl(offset >> 32);
514 *resp->offset1 = htonl(offset & 0xffffffff);
515 resp->offset1 = NULL;
516 } else {
517 xdr_encode_hyper(resp->offset, offset);
518 }
519 }
520
521 RETURN_STATUS(nfserr);
522 }
523
524 /*
525 * Get file system stats
526 */
527 static __be32
528 nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
529 struct nfsd3_fsstatres *resp)
530 {
531 __be32 nfserr;
532
533 dprintk("nfsd: FSSTAT(3) %s\n",
534 SVCFH_fmt(&argp->fh));
535
536 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
537 fh_put(&argp->fh);
538 RETURN_STATUS(nfserr);
539 }
540
541 /*
542 * Get file system info
543 */
544 static __be32
545 nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
546 struct nfsd3_fsinfores *resp)
547 {
548 __be32 nfserr;
549 u32 max_blocksize = svc_max_payload(rqstp);
550
551 dprintk("nfsd: FSINFO(3) %s\n",
552 SVCFH_fmt(&argp->fh));
553
554 resp->f_rtmax = max_blocksize;
555 resp->f_rtpref = max_blocksize;
556 resp->f_rtmult = PAGE_SIZE;
557 resp->f_wtmax = max_blocksize;
558 resp->f_wtpref = max_blocksize;
559 resp->f_wtmult = PAGE_SIZE;
560 resp->f_dtpref = PAGE_SIZE;
561 resp->f_maxfilesize = ~(u32) 0;
562 resp->f_properties = NFS3_FSF_DEFAULT;
563
564 nfserr = fh_verify(rqstp, &argp->fh, 0,
565 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
566
567 /* Check special features of the file system. May request
568 * different read/write sizes for file systems known to have
569 * problems with large blocks */
570 if (nfserr == 0) {
571 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
572
573 /* Note that we don't care for remote fs's here */
574 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
575 resp->f_properties = NFS3_FSF_BILLYBOY;
576 }
577 resp->f_maxfilesize = sb->s_maxbytes;
578 }
579
580 fh_put(&argp->fh);
581 RETURN_STATUS(nfserr);
582 }
583
584 /*
585 * Get pathconf info for the specified file
586 */
587 static __be32
588 nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
589 struct nfsd3_pathconfres *resp)
590 {
591 __be32 nfserr;
592
593 dprintk("nfsd: PATHCONF(3) %s\n",
594 SVCFH_fmt(&argp->fh));
595
596 /* Set default pathconf */
597 resp->p_link_max = 255; /* at least */
598 resp->p_name_max = 255; /* at least */
599 resp->p_no_trunc = 0;
600 resp->p_chown_restricted = 1;
601 resp->p_case_insensitive = 0;
602 resp->p_case_preserving = 1;
603
604 nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
605
606 if (nfserr == 0) {
607 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
608
609 /* Note that we don't care for remote fs's here */
610 switch (sb->s_magic) {
611 case EXT2_SUPER_MAGIC:
612 resp->p_link_max = EXT2_LINK_MAX;
613 resp->p_name_max = EXT2_NAME_LEN;
614 break;
615 case MSDOS_SUPER_MAGIC:
616 resp->p_case_insensitive = 1;
617 resp->p_case_preserving = 0;
618 break;
619 }
620 }
621
622 fh_put(&argp->fh);
623 RETURN_STATUS(nfserr);
624 }
625
626
627 /*
628 * Commit a file (range) to stable storage.
629 */
630 static __be32
631 nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
632 struct nfsd3_commitres *resp)
633 {
634 __be32 nfserr;
635
636 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
637 SVCFH_fmt(&argp->fh),
638 argp->count,
639 (unsigned long long) argp->offset);
640
641 if (argp->offset > NFS_OFFSET_MAX)
642 RETURN_STATUS(nfserr_inval);
643
644 fh_copy(&resp->fh, &argp->fh);
645 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count);
646
647 RETURN_STATUS(nfserr);
648 }
649
650
651 /*
652 * NFSv3 Server procedures.
653 * Only the results of non-idempotent operations are cached.
654 */
655 #define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle
656 #define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
657 #define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
658 #define nfsd3_mkdirargs nfsd3_createargs
659 #define nfsd3_readdirplusargs nfsd3_readdirargs
660 #define nfsd3_fhandleargs nfsd_fhandle
661 #define nfsd3_fhandleres nfsd3_attrstat
662 #define nfsd3_attrstatres nfsd3_attrstat
663 #define nfsd3_wccstatres nfsd3_attrstat
664 #define nfsd3_createres nfsd3_diropres
665 #define nfsd3_voidres nfsd3_voidargs
666 struct nfsd3_voidargs { int dummy; };
667
668 #define PROC(name, argt, rest, relt, cache, respsize) \
669 { (svc_procfunc) nfsd3_proc_##name, \
670 (kxdrproc_t) nfs3svc_decode_##argt##args, \
671 (kxdrproc_t) nfs3svc_encode_##rest##res, \
672 (kxdrproc_t) nfs3svc_release_##relt, \
673 sizeof(struct nfsd3_##argt##args), \
674 sizeof(struct nfsd3_##rest##res), \
675 0, \
676 cache, \
677 respsize, \
678 }
679
680 #define ST 1 /* status*/
681 #define FH 17 /* filehandle with length */
682 #define AT 21 /* attributes */
683 #define pAT (1+AT) /* post attributes - conditional */
684 #define WC (7+pAT) /* WCC attributes */
685
686 static struct svc_procedure nfsd_procedures3[22] = {
687 [NFS3PROC_NULL] = {
688 .pc_func = (svc_procfunc) nfsd3_proc_null,
689 .pc_encode = (kxdrproc_t) nfs3svc_encode_voidres,
690 .pc_argsize = sizeof(struct nfsd3_voidargs),
691 .pc_ressize = sizeof(struct nfsd3_voidres),
692 .pc_cachetype = RC_NOCACHE,
693 .pc_xdrressize = ST,
694 },
695 [NFS3PROC_GETATTR] = {
696 .pc_func = (svc_procfunc) nfsd3_proc_getattr,
697 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
698 .pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres,
699 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
700 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
701 .pc_ressize = sizeof(struct nfsd3_attrstatres),
702 .pc_cachetype = RC_NOCACHE,
703 .pc_xdrressize = ST+AT,
704 },
705 [NFS3PROC_SETATTR] = {
706 .pc_func = (svc_procfunc) nfsd3_proc_setattr,
707 .pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs,
708 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
709 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
710 .pc_argsize = sizeof(struct nfsd3_sattrargs),
711 .pc_ressize = sizeof(struct nfsd3_wccstatres),
712 .pc_cachetype = RC_REPLBUFF,
713 .pc_xdrressize = ST+WC,
714 },
715 [NFS3PROC_LOOKUP] = {
716 .pc_func = (svc_procfunc) nfsd3_proc_lookup,
717 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
718 .pc_encode = (kxdrproc_t) nfs3svc_encode_diropres,
719 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
720 .pc_argsize = sizeof(struct nfsd3_diropargs),
721 .pc_ressize = sizeof(struct nfsd3_diropres),
722 .pc_cachetype = RC_NOCACHE,
723 .pc_xdrressize = ST+FH+pAT+pAT,
724 },
725 [NFS3PROC_ACCESS] = {
726 .pc_func = (svc_procfunc) nfsd3_proc_access,
727 .pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs,
728 .pc_encode = (kxdrproc_t) nfs3svc_encode_accessres,
729 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
730 .pc_argsize = sizeof(struct nfsd3_accessargs),
731 .pc_ressize = sizeof(struct nfsd3_accessres),
732 .pc_cachetype = RC_NOCACHE,
733 .pc_xdrressize = ST+pAT+1,
734 },
735 [NFS3PROC_READLINK] = {
736 .pc_func = (svc_procfunc) nfsd3_proc_readlink,
737 .pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs,
738 .pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres,
739 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
740 .pc_argsize = sizeof(struct nfsd3_readlinkargs),
741 .pc_ressize = sizeof(struct nfsd3_readlinkres),
742 .pc_cachetype = RC_NOCACHE,
743 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
744 },
745 [NFS3PROC_READ] = {
746 .pc_func = (svc_procfunc) nfsd3_proc_read,
747 .pc_decode = (kxdrproc_t) nfs3svc_decode_readargs,
748 .pc_encode = (kxdrproc_t) nfs3svc_encode_readres,
749 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
750 .pc_argsize = sizeof(struct nfsd3_readargs),
751 .pc_ressize = sizeof(struct nfsd3_readres),
752 .pc_cachetype = RC_NOCACHE,
753 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
754 },
755 [NFS3PROC_WRITE] = {
756 .pc_func = (svc_procfunc) nfsd3_proc_write,
757 .pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs,
758 .pc_encode = (kxdrproc_t) nfs3svc_encode_writeres,
759 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
760 .pc_argsize = sizeof(struct nfsd3_writeargs),
761 .pc_ressize = sizeof(struct nfsd3_writeres),
762 .pc_cachetype = RC_REPLBUFF,
763 .pc_xdrressize = ST+WC+4,
764 },
765 [NFS3PROC_CREATE] = {
766 .pc_func = (svc_procfunc) nfsd3_proc_create,
767 .pc_decode = (kxdrproc_t) nfs3svc_decode_createargs,
768 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
769 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
770 .pc_argsize = sizeof(struct nfsd3_createargs),
771 .pc_ressize = sizeof(struct nfsd3_createres),
772 .pc_cachetype = RC_REPLBUFF,
773 .pc_xdrressize = ST+(1+FH+pAT)+WC,
774 },
775 [NFS3PROC_MKDIR] = {
776 .pc_func = (svc_procfunc) nfsd3_proc_mkdir,
777 .pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs,
778 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
779 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
780 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
781 .pc_ressize = sizeof(struct nfsd3_createres),
782 .pc_cachetype = RC_REPLBUFF,
783 .pc_xdrressize = ST+(1+FH+pAT)+WC,
784 },
785 [NFS3PROC_SYMLINK] = {
786 .pc_func = (svc_procfunc) nfsd3_proc_symlink,
787 .pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs,
788 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
789 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
790 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
791 .pc_ressize = sizeof(struct nfsd3_createres),
792 .pc_cachetype = RC_REPLBUFF,
793 .pc_xdrressize = ST+(1+FH+pAT)+WC,
794 },
795 [NFS3PROC_MKNOD] = {
796 .pc_func = (svc_procfunc) nfsd3_proc_mknod,
797 .pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs,
798 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
799 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
800 .pc_argsize = sizeof(struct nfsd3_mknodargs),
801 .pc_ressize = sizeof(struct nfsd3_createres),
802 .pc_cachetype = RC_REPLBUFF,
803 .pc_xdrressize = ST+(1+FH+pAT)+WC,
804 },
805 [NFS3PROC_REMOVE] = {
806 .pc_func = (svc_procfunc) nfsd3_proc_remove,
807 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
808 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
809 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
810 .pc_argsize = sizeof(struct nfsd3_diropargs),
811 .pc_ressize = sizeof(struct nfsd3_wccstatres),
812 .pc_cachetype = RC_REPLBUFF,
813 .pc_xdrressize = ST+WC,
814 },
815 [NFS3PROC_RMDIR] = {
816 .pc_func = (svc_procfunc) nfsd3_proc_rmdir,
817 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
818 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
819 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
820 .pc_argsize = sizeof(struct nfsd3_diropargs),
821 .pc_ressize = sizeof(struct nfsd3_wccstatres),
822 .pc_cachetype = RC_REPLBUFF,
823 .pc_xdrressize = ST+WC,
824 },
825 [NFS3PROC_RENAME] = {
826 .pc_func = (svc_procfunc) nfsd3_proc_rename,
827 .pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs,
828 .pc_encode = (kxdrproc_t) nfs3svc_encode_renameres,
829 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
830 .pc_argsize = sizeof(struct nfsd3_renameargs),
831 .pc_ressize = sizeof(struct nfsd3_renameres),
832 .pc_cachetype = RC_REPLBUFF,
833 .pc_xdrressize = ST+WC+WC,
834 },
835 [NFS3PROC_LINK] = {
836 .pc_func = (svc_procfunc) nfsd3_proc_link,
837 .pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs,
838 .pc_encode = (kxdrproc_t) nfs3svc_encode_linkres,
839 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
840 .pc_argsize = sizeof(struct nfsd3_linkargs),
841 .pc_ressize = sizeof(struct nfsd3_linkres),
842 .pc_cachetype = RC_REPLBUFF,
843 .pc_xdrressize = ST+pAT+WC,
844 },
845 [NFS3PROC_READDIR] = {
846 .pc_func = (svc_procfunc) nfsd3_proc_readdir,
847 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs,
848 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
849 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
850 .pc_argsize = sizeof(struct nfsd3_readdirargs),
851 .pc_ressize = sizeof(struct nfsd3_readdirres),
852 .pc_cachetype = RC_NOCACHE,
853 },
854 [NFS3PROC_READDIRPLUS] = {
855 .pc_func = (svc_procfunc) nfsd3_proc_readdirplus,
856 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs,
857 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
858 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
859 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
860 .pc_ressize = sizeof(struct nfsd3_readdirres),
861 .pc_cachetype = RC_NOCACHE,
862 },
863 [NFS3PROC_FSSTAT] = {
864 .pc_func = (svc_procfunc) nfsd3_proc_fsstat,
865 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
866 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres,
867 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
868 .pc_ressize = sizeof(struct nfsd3_fsstatres),
869 .pc_cachetype = RC_NOCACHE,
870 .pc_xdrressize = ST+pAT+2*6+1,
871 },
872 [NFS3PROC_FSINFO] = {
873 .pc_func = (svc_procfunc) nfsd3_proc_fsinfo,
874 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
875 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores,
876 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
877 .pc_ressize = sizeof(struct nfsd3_fsinfores),
878 .pc_cachetype = RC_NOCACHE,
879 .pc_xdrressize = ST+pAT+12,
880 },
881 [NFS3PROC_PATHCONF] = {
882 .pc_func = (svc_procfunc) nfsd3_proc_pathconf,
883 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
884 .pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres,
885 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
886 .pc_ressize = sizeof(struct nfsd3_pathconfres),
887 .pc_cachetype = RC_NOCACHE,
888 .pc_xdrressize = ST+pAT+6,
889 },
890 [NFS3PROC_COMMIT] = {
891 .pc_func = (svc_procfunc) nfsd3_proc_commit,
892 .pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs,
893 .pc_encode = (kxdrproc_t) nfs3svc_encode_commitres,
894 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
895 .pc_argsize = sizeof(struct nfsd3_commitargs),
896 .pc_ressize = sizeof(struct nfsd3_commitres),
897 .pc_cachetype = RC_NOCACHE,
898 .pc_xdrressize = ST+WC+2,
899 },
900 };
901
902 struct svc_version nfsd_version3 = {
903 .vs_vers = 3,
904 .vs_nproc = 22,
905 .vs_proc = nfsd_procedures3,
906 .vs_dispatch = nfsd_dispatch,
907 .vs_xdrsize = NFS3_SVC_XDRSIZE,
908 };
Linux with added FPC-III support