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[ARM] 3262/4: allow ptraced syscalls to be overriden
[linux-2.6/kmemtrace.git] / fs / nfsd / nfs3proc.c
blob6d2dfed1de087a7a9b53961698bf521a811a51ee
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
22 #include <linux/sunrpc/svc.h>
23 #include <linux/nfsd/nfsd.h>
24 #include <linux/nfsd/cache.h>
25 #include <linux/nfsd/xdr3.h>
26 #include <linux/nfs3.h>
27
28 #define NFSDDBG_FACILITY NFSDDBG_PROC
29
30 #define RETURN_STATUS(st) { resp->status = (st); return (st); }
31
32 static int nfs3_ftypes[] = {
33 0, /* NF3NON */
34 S_IFREG, /* NF3REG */
35 S_IFDIR, /* NF3DIR */
36 S_IFBLK, /* NF3BLK */
37 S_IFCHR, /* NF3CHR */
38 S_IFLNK, /* NF3LNK */
39 S_IFSOCK, /* NF3SOCK */
40 S_IFIFO, /* NF3FIFO */
41 };
42
43 /*
44 * NULL call.
45 */
46 static int
47 nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
48 {
49 return nfs_ok;
50 }
51
52 /*
53 * Get a file's attributes
54 */
55 static int
56 nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
57 struct nfsd3_attrstat *resp)
58 {
59 int err, nfserr;
60
61 dprintk("nfsd: GETATTR(3) %s\n",
62 SVCFH_fmt(&argp->fh));
63
64 fh_copy(&resp->fh, &argp->fh);
65 nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
66 if (nfserr)
67 RETURN_STATUS(nfserr);
68
69 err = vfs_getattr(resp->fh.fh_export->ex_mnt,
70 resp->fh.fh_dentry, &resp->stat);
71 nfserr = nfserrno(err);
72
73 RETURN_STATUS(nfserr);
74 }
75
76 /*
77 * Set a file's attributes
78 */
79 static int
80 nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
81 struct nfsd3_attrstat *resp)
82 {
83 int nfserr;
84
85 dprintk("nfsd: SETATTR(3) %s\n",
86 SVCFH_fmt(&argp->fh));
87
88 fh_copy(&resp->fh, &argp->fh);
89 nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
90 argp->check_guard, argp->guardtime);
91 RETURN_STATUS(nfserr);
92 }
93
94 /*
95 * Look up a path name component
96 */
97 static int
98 nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
99 struct nfsd3_diropres *resp)
100 {
101 int nfserr;
102
103 dprintk("nfsd: LOOKUP(3) %s %.*s\n",
104 SVCFH_fmt(&argp->fh),
105 argp->len,
106 argp->name);
107
108 fh_copy(&resp->dirfh, &argp->fh);
109 fh_init(&resp->fh, NFS3_FHSIZE);
110
111 nfserr = nfsd_lookup(rqstp, &resp->dirfh,
112 argp->name,
113 argp->len,
114 &resp->fh);
115 RETURN_STATUS(nfserr);
116 }
117
118 /*
119 * Check file access
120 */
121 static int
122 nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
123 struct nfsd3_accessres *resp)
124 {
125 int nfserr;
126
127 dprintk("nfsd: ACCESS(3) %s 0x%x\n",
128 SVCFH_fmt(&argp->fh),
129 argp->access);
130
131 fh_copy(&resp->fh, &argp->fh);
132 resp->access = argp->access;
133 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
134 RETURN_STATUS(nfserr);
135 }
136
137 /*
138 * Read a symlink.
139 */
140 static int
141 nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
142 struct nfsd3_readlinkres *resp)
143 {
144 int nfserr;
145
146 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
147
148 /* Read the symlink. */
149 fh_copy(&resp->fh, &argp->fh);
150 resp->len = NFS3_MAXPATHLEN;
151 nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
152 RETURN_STATUS(nfserr);
153 }
154
155 /*
156 * Read a portion of a file.
157 */
158 static int
159 nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
160 struct nfsd3_readres *resp)
161 {
162 int nfserr;
163
164 dprintk("nfsd: READ(3) %s %lu bytes at %lu\n",
165 SVCFH_fmt(&argp->fh),
166 (unsigned long) argp->count,
167 (unsigned long) argp->offset);
168
169 /* Obtain buffer pointer for payload.
170 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
171 * + 1 (xdr opaque byte count) = 26
172 */
173
174 resp->count = argp->count;
175 if (NFSSVC_MAXBLKSIZE < resp->count)
176 resp->count = NFSSVC_MAXBLKSIZE;
177
178 svc_reserve(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
179
180 fh_copy(&resp->fh, &argp->fh);
181 nfserr = nfsd_read(rqstp, &resp->fh, NULL,
182 argp->offset,
183 argp->vec, argp->vlen,
184 &resp->count);
185 if (nfserr == 0) {
186 struct inode *inode = resp->fh.fh_dentry->d_inode;
187
188 resp->eof = (argp->offset + resp->count) >= inode->i_size;
189 }
190
191 RETURN_STATUS(nfserr);
192 }
193
194 /*
195 * Write data to a file
196 */
197 static int
198 nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
199 struct nfsd3_writeres *resp)
200 {
201 int nfserr;
202
203 dprintk("nfsd: WRITE(3) %s %d bytes at %ld%s\n",
204 SVCFH_fmt(&argp->fh),
205 argp->len,
206 (unsigned long) argp->offset,
207 argp->stable? " stable" : "");
208
209 fh_copy(&resp->fh, &argp->fh);
210 resp->committed = argp->stable;
211 nfserr = nfsd_write(rqstp, &resp->fh, NULL,
212 argp->offset,
213 argp->vec, argp->vlen,
214 argp->len,
215 &resp->committed);
216 resp->count = argp->count;
217 RETURN_STATUS(nfserr);
218 }
219
220 /*
221 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
222 * At least in theory; we'll see how it fares in practice when the
223 * first reports about SunOS compatibility problems start to pour in...
224 */
225 static int
226 nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
227 struct nfsd3_diropres *resp)
228 {
229 svc_fh *dirfhp, *newfhp = NULL;
230 struct iattr *attr;
231 u32 nfserr;
232
233 dprintk("nfsd: CREATE(3) %s %.*s\n",
234 SVCFH_fmt(&argp->fh),
235 argp->len,
236 argp->name);
237
238 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
239 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
240 attr = &argp->attrs;
241
242 /* Get the directory inode */
243 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, MAY_CREATE);
244 if (nfserr)
245 RETURN_STATUS(nfserr);
246
247 /* Unfudge the mode bits */
248 attr->ia_mode &= ~S_IFMT;
249 if (!(attr->ia_valid & ATTR_MODE)) {
250 attr->ia_valid |= ATTR_MODE;
251 attr->ia_mode = S_IFREG;
252 } else {
253 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
254 }
255
256 /* Now create the file and set attributes */
257 nfserr = nfsd_create_v3(rqstp, dirfhp, argp->name, argp->len,
258 attr, newfhp,
259 argp->createmode, argp->verf, NULL);
260
261 RETURN_STATUS(nfserr);
262 }
263
264 /*
265 * Make directory. This operation is not idempotent.
266 */
267 static int
268 nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
269 struct nfsd3_diropres *resp)
270 {
271 int nfserr;
272
273 dprintk("nfsd: MKDIR(3) %s %.*s\n",
274 SVCFH_fmt(&argp->fh),
275 argp->len,
276 argp->name);
277
278 argp->attrs.ia_valid &= ~ATTR_SIZE;
279 fh_copy(&resp->dirfh, &argp->fh);
280 fh_init(&resp->fh, NFS3_FHSIZE);
281 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
282 &argp->attrs, S_IFDIR, 0, &resp->fh);
283
284 RETURN_STATUS(nfserr);
285 }
286
287 static int
288 nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
289 struct nfsd3_diropres *resp)
290 {
291 int nfserr;
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, argp->tlen,
302 &resp->fh, &argp->attrs);
303 RETURN_STATUS(nfserr);
304 }
305
306 /*
307 * Make socket/fifo/device.
308 */
309 static int
310 nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
311 struct nfsd3_diropres *resp)
312 {
313 int nfserr, type;
314 dev_t rdev = 0;
315
316 dprintk("nfsd: MKNOD(3) %s %.*s\n",
317 SVCFH_fmt(&argp->fh),
318 argp->len,
319 argp->name);
320
321 fh_copy(&resp->dirfh, &argp->fh);
322 fh_init(&resp->fh, NFS3_FHSIZE);
323
324 if (argp->ftype == 0 || argp->ftype >= NF3BAD)
325 RETURN_STATUS(nfserr_inval);
326 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
327 rdev = MKDEV(argp->major, argp->minor);
328 if (MAJOR(rdev) != argp->major ||
329 MINOR(rdev) != argp->minor)
330 RETURN_STATUS(nfserr_inval);
331 } else
332 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
333 RETURN_STATUS(nfserr_inval);
334
335 type = nfs3_ftypes[argp->ftype];
336 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
337 &argp->attrs, type, rdev, &resp->fh);
338
339 RETURN_STATUS(nfserr);
340 }
341
342 /*
343 * Remove file/fifo/socket etc.
344 */
345 static int
346 nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
347 struct nfsd3_attrstat *resp)
348 {
349 int nfserr;
350
351 dprintk("nfsd: REMOVE(3) %s %.*s\n",
352 SVCFH_fmt(&argp->fh),
353 argp->len,
354 argp->name);
355
356 /* Unlink. -S_IFDIR means file must not be a directory */
357 fh_copy(&resp->fh, &argp->fh);
358 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
359 RETURN_STATUS(nfserr);
360 }
361
362 /*
363 * Remove a directory
364 */
365 static int
366 nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
367 struct nfsd3_attrstat *resp)
368 {
369 int nfserr;
370
371 dprintk("nfsd: RMDIR(3) %s %.*s\n",
372 SVCFH_fmt(&argp->fh),
373 argp->len,
374 argp->name);
375
376 fh_copy(&resp->fh, &argp->fh);
377 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
378 RETURN_STATUS(nfserr);
379 }
380
381 static int
382 nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
383 struct nfsd3_renameres *resp)
384 {
385 int nfserr;
386
387 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
388 SVCFH_fmt(&argp->ffh),
389 argp->flen,
390 argp->fname);
391 dprintk("nfsd: -> %s %.*s\n",
392 SVCFH_fmt(&argp->tfh),
393 argp->tlen,
394 argp->tname);
395
396 fh_copy(&resp->ffh, &argp->ffh);
397 fh_copy(&resp->tfh, &argp->tfh);
398 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
399 &resp->tfh, argp->tname, argp->tlen);
400 RETURN_STATUS(nfserr);
401 }
402
403 static int
404 nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
405 struct nfsd3_linkres *resp)
406 {
407 int nfserr;
408
409 dprintk("nfsd: LINK(3) %s ->\n",
410 SVCFH_fmt(&argp->ffh));
411 dprintk("nfsd: -> %s %.*s\n",
412 SVCFH_fmt(&argp->tfh),
413 argp->tlen,
414 argp->tname);
415
416 fh_copy(&resp->fh, &argp->ffh);
417 fh_copy(&resp->tfh, &argp->tfh);
418 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
419 &resp->fh);
420 RETURN_STATUS(nfserr);
421 }
422
423 /*
424 * Read a portion of a directory.
425 */
426 static int
427 nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
428 struct nfsd3_readdirres *resp)
429 {
430 int nfserr, count;
431
432 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
433 SVCFH_fmt(&argp->fh),
434 argp->count, (u32) argp->cookie);
435
436 /* Make sure we've room for the NULL ptr & eof flag, and shrink to
437 * client read size */
438 count = (argp->count >> 2) - 2;
439
440 /* Read directory and encode entries on the fly */
441 fh_copy(&resp->fh, &argp->fh);
442
443 resp->buflen = count;
444 resp->common.err = nfs_ok;
445 resp->buffer = argp->buffer;
446 resp->rqstp = rqstp;
447 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie,
448 &resp->common, nfs3svc_encode_entry);
449 memcpy(resp->verf, argp->verf, 8);
450 resp->count = resp->buffer - argp->buffer;
451 if (resp->offset)
452 xdr_encode_hyper(resp->offset, argp->cookie);
453
454 RETURN_STATUS(nfserr);
455 }
456
457 /*
458 * Read a portion of a directory, including file handles and attrs.
459 * For now, we choose to ignore the dircount parameter.
460 */
461 static int
462 nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
463 struct nfsd3_readdirres *resp)
464 {
465 int nfserr, count = 0;
466 loff_t offset;
467 int i;
468 caddr_t page_addr = NULL;
469
470 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
471 SVCFH_fmt(&argp->fh),
472 argp->count, (u32) argp->cookie);
473
474 /* Convert byte count to number of words (i.e. >> 2),
475 * and reserve room for the NULL ptr & eof flag (-2 words) */
476 resp->count = (argp->count >> 2) - 2;
477
478 /* Read directory and encode entries on the fly */
479 fh_copy(&resp->fh, &argp->fh);
480
481 resp->common.err = nfs_ok;
482 resp->buffer = argp->buffer;
483 resp->buflen = resp->count;
484 resp->rqstp = rqstp;
485 offset = argp->cookie;
486 nfserr = nfsd_readdir(rqstp, &resp->fh,
487 &offset,
488 &resp->common,
489 nfs3svc_encode_entry_plus);
490 memcpy(resp->verf, argp->verf, 8);
491 for (i=1; i<rqstp->rq_resused ; i++) {
492 page_addr = page_address(rqstp->rq_respages[i]);
493
494 if (((caddr_t)resp->buffer >= page_addr) &&
495 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
496 count += (caddr_t)resp->buffer - page_addr;
497 break;
498 }
499 count += PAGE_SIZE;
500 }
501 resp->count = count >> 2;
502 if (resp->offset) {
503 if (unlikely(resp->offset1)) {
504 /* we ended up with offset on a page boundary */
505 *resp->offset = htonl(offset >> 32);
506 *resp->offset1 = htonl(offset & 0xffffffff);
507 resp->offset1 = NULL;
508 } else {
509 xdr_encode_hyper(resp->offset, offset);
510 }
511 }
512
513 RETURN_STATUS(nfserr);
514 }
515
516 /*
517 * Get file system stats
518 */
519 static int
520 nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
521 struct nfsd3_fsstatres *resp)
522 {
523 int nfserr;
524
525 dprintk("nfsd: FSSTAT(3) %s\n",
526 SVCFH_fmt(&argp->fh));
527
528 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats);
529 fh_put(&argp->fh);
530 RETURN_STATUS(nfserr);
531 }
532
533 /*
534 * Get file system info
535 */
536 static int
537 nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
538 struct nfsd3_fsinfores *resp)
539 {
540 int nfserr;
541
542 dprintk("nfsd: FSINFO(3) %s\n",
543 SVCFH_fmt(&argp->fh));
544
545 resp->f_rtmax = NFSSVC_MAXBLKSIZE;
546 resp->f_rtpref = NFSSVC_MAXBLKSIZE;
547 resp->f_rtmult = PAGE_SIZE;
548 resp->f_wtmax = NFSSVC_MAXBLKSIZE;
549 resp->f_wtpref = NFSSVC_MAXBLKSIZE;
550 resp->f_wtmult = PAGE_SIZE;
551 resp->f_dtpref = PAGE_SIZE;
552 resp->f_maxfilesize = ~(u32) 0;
553 resp->f_properties = NFS3_FSF_DEFAULT;
554
555 nfserr = fh_verify(rqstp, &argp->fh, 0, MAY_NOP);
556
557 /* Check special features of the file system. May request
558 * different read/write sizes for file systems known to have
559 * problems with large blocks */
560 if (nfserr == 0) {
561 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
562
563 /* Note that we don't care for remote fs's here */
564 if (sb->s_magic == 0x4d44 /* MSDOS_SUPER_MAGIC */) {
565 resp->f_properties = NFS3_FSF_BILLYBOY;
566 }
567 resp->f_maxfilesize = sb->s_maxbytes;
568 }
569
570 fh_put(&argp->fh);
571 RETURN_STATUS(nfserr);
572 }
573
574 /*
575 * Get pathconf info for the specified file
576 */
577 static int
578 nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
579 struct nfsd3_pathconfres *resp)
580 {
581 int nfserr;
582
583 dprintk("nfsd: PATHCONF(3) %s\n",
584 SVCFH_fmt(&argp->fh));
585
586 /* Set default pathconf */
587 resp->p_link_max = 255; /* at least */
588 resp->p_name_max = 255; /* at least */
589 resp->p_no_trunc = 0;
590 resp->p_chown_restricted = 1;
591 resp->p_case_insensitive = 0;
592 resp->p_case_preserving = 1;
593
594 nfserr = fh_verify(rqstp, &argp->fh, 0, MAY_NOP);
595
596 if (nfserr == 0) {
597 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
598
599 /* Note that we don't care for remote fs's here */
600 switch (sb->s_magic) {
601 case EXT2_SUPER_MAGIC:
602 resp->p_link_max = EXT2_LINK_MAX;
603 resp->p_name_max = EXT2_NAME_LEN;
604 break;
605 case 0x4d44: /* MSDOS_SUPER_MAGIC */
606 resp->p_case_insensitive = 1;
607 resp->p_case_preserving = 0;
608 break;
609 }
610 }
611
612 fh_put(&argp->fh);
613 RETURN_STATUS(nfserr);
614 }
615
616
617 /*
618 * Commit a file (range) to stable storage.
619 */
620 static int
621 nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
622 struct nfsd3_commitres *resp)
623 {
624 int nfserr;
625
626 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
627 SVCFH_fmt(&argp->fh),
628 argp->count,
629 (unsigned long long) argp->offset);
630
631 if (argp->offset > NFS_OFFSET_MAX)
632 RETURN_STATUS(nfserr_inval);
633
634 fh_copy(&resp->fh, &argp->fh);
635 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count);
636
637 RETURN_STATUS(nfserr);
638 }
639
640
641 /*
642 * NFSv3 Server procedures.
643 * Only the results of non-idempotent operations are cached.
644 */
645 #define nfs3svc_decode_voidargs NULL
646 #define nfs3svc_release_void NULL
647 #define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle
648 #define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
649 #define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
650 #define nfsd3_mkdirargs nfsd3_createargs
651 #define nfsd3_readdirplusargs nfsd3_readdirargs
652 #define nfsd3_fhandleargs nfsd_fhandle
653 #define nfsd3_fhandleres nfsd3_attrstat
654 #define nfsd3_attrstatres nfsd3_attrstat
655 #define nfsd3_wccstatres nfsd3_attrstat
656 #define nfsd3_createres nfsd3_diropres
657 #define nfsd3_voidres nfsd3_voidargs
658 struct nfsd3_voidargs { int dummy; };
659
660 #define PROC(name, argt, rest, relt, cache, respsize) \
661 { (svc_procfunc) nfsd3_proc_##name, \
662 (kxdrproc_t) nfs3svc_decode_##argt##args, \
663 (kxdrproc_t) nfs3svc_encode_##rest##res, \
664 (kxdrproc_t) nfs3svc_release_##relt, \
665 sizeof(struct nfsd3_##argt##args), \
666 sizeof(struct nfsd3_##rest##res), \
667 0, \
668 cache, \
669 respsize, \
670 }
671
672 #define ST 1 /* status*/
673 #define FH 17 /* filehandle with length */
674 #define AT 21 /* attributes */
675 #define pAT (1+AT) /* post attributes - conditional */
676 #define WC (7+pAT) /* WCC attributes */
677
678 static struct svc_procedure nfsd_procedures3[22] = {
679 PROC(null, void, void, void, RC_NOCACHE, ST),
680 PROC(getattr, fhandle, attrstat, fhandle, RC_NOCACHE, ST+AT),
681 PROC(setattr, sattr, wccstat, fhandle, RC_REPLBUFF, ST+WC),
682 PROC(lookup, dirop, dirop, fhandle2, RC_NOCACHE, ST+FH+pAT+pAT),
683 PROC(access, access, access, fhandle, RC_NOCACHE, ST+pAT+1),
684 PROC(readlink, readlink, readlink, fhandle, RC_NOCACHE, ST+pAT+1+NFS3_MAXPATHLEN/4),
685 PROC(read, read, read, fhandle, RC_NOCACHE, ST+pAT+4+NFSSVC_MAXBLKSIZE),
686 PROC(write, write, write, fhandle, RC_REPLBUFF, ST+WC+4),
687 PROC(create, create, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
688 PROC(mkdir, mkdir, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
689 PROC(symlink, symlink, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
690 PROC(mknod, mknod, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
691 PROC(remove, dirop, wccstat, fhandle, RC_REPLBUFF, ST+WC),
692 PROC(rmdir, dirop, wccstat, fhandle, RC_REPLBUFF, ST+WC),
693 PROC(rename, rename, rename, fhandle2, RC_REPLBUFF, ST+WC+WC),
694 PROC(link, link, link, fhandle2, RC_REPLBUFF, ST+pAT+WC),
695 PROC(readdir, readdir, readdir, fhandle, RC_NOCACHE, 0),
696 PROC(readdirplus,readdirplus, readdir, fhandle, RC_NOCACHE, 0),
697 PROC(fsstat, fhandle, fsstat, void, RC_NOCACHE, ST+pAT+2*6+1),
698 PROC(fsinfo, fhandle, fsinfo, void, RC_NOCACHE, ST+pAT+12),
699 PROC(pathconf, fhandle, pathconf, void, RC_NOCACHE, ST+pAT+6),
700 PROC(commit, commit, commit, fhandle, RC_NOCACHE, ST+WC+2),
701 };
702
703 struct svc_version nfsd_version3 = {
704 .vs_vers = 3,
705 .vs_nproc = 22,
706 .vs_proc = nfsd_procedures3,
707 .vs_dispatch = nfsd_dispatch,
708 .vs_xdrsize = NFS3_SVC_XDRSIZE,
709 };
kmemtrace - Kernel memory tracer