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vfs: nfsctl.c un-used nfsd #includes
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / fs / nfsd / nfs3proc.c
CommitLineData
1da177e4
LT		 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
1da177e4
LT		 9#include <linux/fs.h>
10#include <linux/ext2_fs.h>
12214cb7 11#include <linux/magic.h>
1da177e4 12
1da177e4
LT		 13#include <linux/nfsd/cache.h>
14#include <linux/nfsd/xdr3.h>
0a3adade 15#include "vfs.h"
1da177e4
LT		 16
17#define NFSDDBG_FACILITY NFSDDBG_PROC
18
19#define RETURN_STATUS(st) { resp->status = (st); return (st); }
20
21static int nfs3_ftypes[] = {
22 0, /* NF3NON */
23 S_IFREG, /* NF3REG */
24 S_IFDIR, /* NF3DIR */
25 S_IFBLK, /* NF3BLK */
26 S_IFCHR, /* NF3CHR */
27 S_IFLNK, /* NF3LNK */
28 S_IFSOCK, /* NF3SOCK */
29 S_IFIFO, /* NF3FIFO */
30};
31
32/*
33 * NULL call.
34 */
7111c66e 35static __be32
1da177e4
LT		 36nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
37{
38 return nfs_ok;
39}
40
41/*
42 * Get a file's attributes
43 */
7111c66e 44static __be32
1da177e4
LT		 45nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
46 struct nfsd3_attrstat *resp)
47{
c4d987ba
AV		 48 int err;
49 __be32 nfserr;
1da177e4
LT		 50
51 dprintk("nfsd: GETATTR(3) %s\n",
a334de28 52 SVCFH_fmt(&argp->fh));
1da177e4
LT		 53
54 fh_copy(&resp->fh, &argp->fh);
04716e66
BF		 55 nfserr = fh_verify(rqstp, &resp->fh, 0,
56 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
a334de28
DS		 57 if (nfserr)
58 RETURN_STATUS(nfserr);
59
54775491 60 err = vfs_getattr(resp->fh.fh_export->ex_path.mnt,
a334de28
DS		 61 resp->fh.fh_dentry, &resp->stat);
62 nfserr = nfserrno(err);
63
1da177e4
LT		 64 RETURN_STATUS(nfserr);
65}
66
67/*
68 * Set a file's attributes
69 */
7111c66e 70static __be32
1da177e4
LT		 71nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
72 struct nfsd3_attrstat *resp)
73{
c4d987ba 74 __be32 nfserr;
1da177e4
LT		 75
76 dprintk("nfsd: SETATTR(3) %s\n",
77 SVCFH_fmt(&argp->fh));
78
79 fh_copy(&resp->fh, &argp->fh);
80 nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
81 argp->check_guard, argp->guardtime);
82 RETURN_STATUS(nfserr);
83}
84
85/*
86 * Look up a path name component
87 */
7111c66e 88static __be32
1da177e4
LT		 89nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
90 struct nfsd3_diropres *resp)
91{
c4d987ba 92 __be32 nfserr;
1da177e4
LT		 93
94 dprintk("nfsd: LOOKUP(3) %s %.*s\n",
95 SVCFH_fmt(&argp->fh),
96 argp->len,
97 argp->name);
98
99 fh_copy(&resp->dirfh, &argp->fh);
100 fh_init(&resp->fh, NFS3_FHSIZE);
101
102 nfserr = nfsd_lookup(rqstp, &resp->dirfh,
103 argp->name,
104 argp->len,
105 &resp->fh);
106 RETURN_STATUS(nfserr);
107}
108
109/*
110 * Check file access
111 */
7111c66e 112static __be32
1da177e4
LT		 113nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
114 struct nfsd3_accessres *resp)
115{
c4d987ba 116 __be32 nfserr;
1da177e4
LT		 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 */
7111c66e 131static __be32
1da177e4
LT		 132nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
133 struct nfsd3_readlinkres *resp)
134{
c4d987ba 135 __be32 nfserr;
1da177e4
LT		 136
137 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
138
139 /* Read the symlink. */
140 fh_copy(&resp->fh, &argp->fh);
141 resp->len = NFS3_MAXPATHLEN;
142 nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
143 RETURN_STATUS(nfserr);
144}
145
146/*
147 * Read a portion of a file.
148 */
7111c66e 149static __be32
1da177e4
LT		 150nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
151 struct nfsd3_readres *resp)
152{
c4d987ba 153 __be32 nfserr;
7adae489 154 u32 max_blocksize = svc_max_payload(rqstp);
1da177e4
LT		 155
156 dprintk("nfsd: READ(3) %s %lu bytes at %lu\n",
157 SVCFH_fmt(&argp->fh),
158 (unsigned long) argp->count,
159 (unsigned long) argp->offset);
160
161 /* Obtain buffer pointer for payload.
162 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
163 * + 1 (xdr opaque byte count) = 26
164 */
165
166 resp->count = argp->count;
7adae489
GB		 167 if (max_blocksize < resp->count)
168 resp->count = max_blocksize;
1da177e4 169
cd123012 170 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
1da177e4
LT		 171
172 fh_copy(&resp->fh, &argp->fh);
173 nfserr = nfsd_read(rqstp, &resp->fh, NULL,
174 argp->offset,
3cc03b16 175 rqstp->rq_vec, argp->vlen,
1da177e4
LT		 176 &resp->count);
177 if (nfserr == 0) {
178 struct inode *inode = resp->fh.fh_dentry->d_inode;
179
180 resp->eof = (argp->offset + resp->count) >= inode->i_size;
181 }
182
183 RETURN_STATUS(nfserr);
184}
185
186/*
187 * Write data to a file
188 */
7111c66e 189static __be32
1da177e4
LT		 190nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
191 struct nfsd3_writeres *resp)
192{
c4d987ba 193 __be32 nfserr;
31dec253 194 unsigned long cnt = argp->len;
1da177e4
LT		 195
196 dprintk("nfsd: WRITE(3) %s %d bytes at %ld%s\n",
197 SVCFH_fmt(&argp->fh),
198 argp->len,
199 (unsigned long) argp->offset,
200 argp->stable? " stable" : "");
201
202 fh_copy(&resp->fh, &argp->fh);
203 resp->committed = argp->stable;
204 nfserr = nfsd_write(rqstp, &resp->fh, NULL,
205 argp->offset,
3cc03b16 206 rqstp->rq_vec, argp->vlen,
31dec253 207 &cnt,
1da177e4 208 &resp->committed);
31dec253 209 resp->count = cnt;
1da177e4
LT		 210 RETURN_STATUS(nfserr);
211}
212
213/*
214 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
215 * At least in theory; we'll see how it fares in practice when the
216 * first reports about SunOS compatibility problems start to pour in...
217 */
7111c66e 218static __be32
1da177e4
LT		 219nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
220 struct nfsd3_diropres *resp)
221{
222 svc_fh *dirfhp, *newfhp = NULL;
223 struct iattr *attr;
c4d987ba 224 __be32 nfserr;
1da177e4
LT		 225
226 dprintk("nfsd: CREATE(3) %s %.*s\n",
227 SVCFH_fmt(&argp->fh),
228 argp->len,
229 argp->name);
230
231 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
232 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
233 attr = &argp->attrs;
234
235 /* Get the directory inode */
8837abca 236 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_CREATE);
1da177e4
LT		 237 if (nfserr)
238 RETURN_STATUS(nfserr);
239
240 /* Unfudge the mode bits */
241 attr->ia_mode &= ~S_IFMT;
242 if (!(attr->ia_valid & ATTR_MODE)) {
243 attr->ia_valid |= ATTR_MODE;
244 attr->ia_mode = S_IFREG;
245 } else {
246 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
247 }
248
249 /* Now create the file and set attributes */
250 nfserr = nfsd_create_v3(rqstp, dirfhp, argp->name, argp->len,
251 attr, newfhp,
81ac95c5 252 argp->createmode, argp->verf, NULL, NULL);
1da177e4
LT		 253
254 RETURN_STATUS(nfserr);
255}
256
257/*
258 * Make directory. This operation is not idempotent.
259 */
7111c66e 260static __be32
1da177e4
LT		 261nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
262 struct nfsd3_diropres *resp)
263{
c4d987ba 264 __be32 nfserr;
1da177e4
LT		 265
266 dprintk("nfsd: MKDIR(3) %s %.*s\n",
267 SVCFH_fmt(&argp->fh),
268 argp->len,
269 argp->name);
270
271 argp->attrs.ia_valid &= ~ATTR_SIZE;
272 fh_copy(&resp->dirfh, &argp->fh);
273 fh_init(&resp->fh, NFS3_FHSIZE);
274 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
275 &argp->attrs, S_IFDIR, 0, &resp->fh);
276
277 RETURN_STATUS(nfserr);
278}
279
7111c66e 280static __be32
1da177e4
LT		 281nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
282 struct nfsd3_diropres *resp)
283{
c4d987ba 284 __be32 nfserr;
1da177e4
LT		 285
286 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
287 SVCFH_fmt(&argp->ffh),
288 argp->flen, argp->fname,
289 argp->tlen, argp->tname);
290
291 fh_copy(&resp->dirfh, &argp->ffh);
292 fh_init(&resp->fh, NFS3_FHSIZE);
293 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
294 argp->tname, argp->tlen,
295 &resp->fh, &argp->attrs);
296 RETURN_STATUS(nfserr);
297}
298
299/*
300 * Make socket/fifo/device.
301 */
7111c66e 302static __be32
1da177e4
LT		 303nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
304 struct nfsd3_diropres *resp)
305{
c4d987ba
AV		 306 __be32 nfserr;
307 int type;
1da177e4
LT		 308 dev_t rdev = 0;
309
310 dprintk("nfsd: MKNOD(3) %s %.*s\n",
311 SVCFH_fmt(&argp->fh),
312 argp->len,
313 argp->name);
314
315 fh_copy(&resp->dirfh, &argp->fh);
316 fh_init(&resp->fh, NFS3_FHSIZE);
317
318 if (argp->ftype == 0 || argp->ftype >= NF3BAD)
319 RETURN_STATUS(nfserr_inval);
320 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
321 rdev = MKDEV(argp->major, argp->minor);
322 if (MAJOR(rdev) != argp->major ||
323 MINOR(rdev) != argp->minor)
324 RETURN_STATUS(nfserr_inval);
325 } else
326 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
327 RETURN_STATUS(nfserr_inval);
328
329 type = nfs3_ftypes[argp->ftype];
330 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
331 &argp->attrs, type, rdev, &resp->fh);
332
333 RETURN_STATUS(nfserr);
334}
335
336/*
337 * Remove file/fifo/socket etc.
338 */
7111c66e 339static __be32
1da177e4
LT		 340nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
341 struct nfsd3_attrstat *resp)
342{
c4d987ba 343 __be32 nfserr;
1da177e4
LT		 344
345 dprintk("nfsd: REMOVE(3) %s %.*s\n",
346 SVCFH_fmt(&argp->fh),
347 argp->len,
348 argp->name);
349
350 /* Unlink. -S_IFDIR means file must not be a directory */
351 fh_copy(&resp->fh, &argp->fh);
352 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
353 RETURN_STATUS(nfserr);
354}
355
356/*
357 * Remove a directory
358 */
7111c66e 359static __be32
1da177e4
LT		 360nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
361 struct nfsd3_attrstat *resp)
362{
c4d987ba 363 __be32 nfserr;
1da177e4
LT		 364
365 dprintk("nfsd: RMDIR(3) %s %.*s\n",
366 SVCFH_fmt(&argp->fh),
367 argp->len,
368 argp->name);
369
370 fh_copy(&resp->fh, &argp->fh);
371 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
372 RETURN_STATUS(nfserr);
373}
374
7111c66e 375static __be32
1da177e4
LT		 376nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
377 struct nfsd3_renameres *resp)
378{
c4d987ba 379 __be32 nfserr;
1da177e4
LT		 380
381 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
382 SVCFH_fmt(&argp->ffh),
383 argp->flen,
384 argp->fname);
385 dprintk("nfsd: -> %s %.*s\n",
386 SVCFH_fmt(&argp->tfh),
387 argp->tlen,
388 argp->tname);
389
390 fh_copy(&resp->ffh, &argp->ffh);
391 fh_copy(&resp->tfh, &argp->tfh);
392 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
393 &resp->tfh, argp->tname, argp->tlen);
394 RETURN_STATUS(nfserr);
395}
396
7111c66e 397static __be32
1da177e4
LT		 398nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
399 struct nfsd3_linkres *resp)
400{
c4d987ba 401 __be32 nfserr;
1da177e4
LT		 402
403 dprintk("nfsd: LINK(3) %s ->\n",
404 SVCFH_fmt(&argp->ffh));
405 dprintk("nfsd: -> %s %.*s\n",
406 SVCFH_fmt(&argp->tfh),
407 argp->tlen,
408 argp->tname);
409
410 fh_copy(&resp->fh, &argp->ffh);
411 fh_copy(&resp->tfh, &argp->tfh);
412 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
413 &resp->fh);
414 RETURN_STATUS(nfserr);
415}
416
417/*
418 * Read a portion of a directory.
419 */
7111c66e 420static __be32
1da177e4
LT		 421nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
422 struct nfsd3_readdirres *resp)
423{
c4d987ba
AV		 424 __be32 nfserr;
425 int count;
1da177e4
LT		 426
427 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
428 SVCFH_fmt(&argp->fh),
429 argp->count, (u32) argp->cookie);
430
431 /* Make sure we've room for the NULL ptr & eof flag, and shrink to
432 * client read size */
433 count = (argp->count >> 2) - 2;
434
435 /* Read directory and encode entries on the fly */
436 fh_copy(&resp->fh, &argp->fh);
437
438 resp->buflen = count;
439 resp->common.err = nfs_ok;
440 resp->buffer = argp->buffer;
441 resp->rqstp = rqstp;
442 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie,
443 &resp->common, nfs3svc_encode_entry);
444 memcpy(resp->verf, argp->verf, 8);
445 resp->count = resp->buffer - argp->buffer;
446 if (resp->offset)
447 xdr_encode_hyper(resp->offset, argp->cookie);
448
449 RETURN_STATUS(nfserr);
450}
451
452/*
453 * Read a portion of a directory, including file handles and attrs.
454 * For now, we choose to ignore the dircount parameter.
455 */
7111c66e 456static __be32
1da177e4
LT		 457nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
458 struct nfsd3_readdirres *resp)
459{
c4d987ba
AV		 460 __be32 nfserr;
461 int count = 0;
1da177e4
LT		 462 loff_t offset;
463 int i;
464 caddr_t page_addr = NULL;
465
466 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
467 SVCFH_fmt(&argp->fh),
468 argp->count, (u32) argp->cookie);
469
470 /* Convert byte count to number of words (i.e. >> 2),
471 * and reserve room for the NULL ptr & eof flag (-2 words) */
472 resp->count = (argp->count >> 2) - 2;
473
474 /* Read directory and encode entries on the fly */
475 fh_copy(&resp->fh, &argp->fh);
476
477 resp->common.err = nfs_ok;
478 resp->buffer = argp->buffer;
479 resp->buflen = resp->count;
480 resp->rqstp = rqstp;
481 offset = argp->cookie;
482 nfserr = nfsd_readdir(rqstp, &resp->fh,
483 &offset,
484 &resp->common,
485 nfs3svc_encode_entry_plus);
486 memcpy(resp->verf, argp->verf, 8);
487 for (i=1; i<rqstp->rq_resused ; i++) {
488 page_addr = page_address(rqstp->rq_respages[i]);
489
490 if (((caddr_t)resp->buffer >= page_addr) &&
491 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
492 count += (caddr_t)resp->buffer - page_addr;
493 break;
494 }
495 count += PAGE_SIZE;
496 }
497 resp->count = count >> 2;
498 if (resp->offset) {
499 if (unlikely(resp->offset1)) {
500 /* we ended up with offset on a page boundary */
501 *resp->offset = htonl(offset >> 32);
502 *resp->offset1 = htonl(offset & 0xffffffff);
503 resp->offset1 = NULL;
504 } else {
505 xdr_encode_hyper(resp->offset, offset);
506 }
507 }
508
509 RETURN_STATUS(nfserr);
510}
511
512/*
513 * Get file system stats
514 */
7111c66e 515static __be32
1da177e4
LT		 516nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
517 struct nfsd3_fsstatres *resp)
518{
c4d987ba 519 __be32 nfserr;
1da177e4
LT		 520
521 dprintk("nfsd: FSSTAT(3) %s\n",
522 SVCFH_fmt(&argp->fh));
523
04716e66 524 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
1da177e4
LT		 525 fh_put(&argp->fh);
526 RETURN_STATUS(nfserr);
527}
528
529/*
530 * Get file system info
531 */
7111c66e 532static __be32
1da177e4
LT		 533nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
534 struct nfsd3_fsinfores *resp)
535{
c4d987ba 536 __be32 nfserr;
7adae489 537 u32 max_blocksize = svc_max_payload(rqstp);
1da177e4
LT		 538
539 dprintk("nfsd: FSINFO(3) %s\n",
540 SVCFH_fmt(&argp->fh));
541
7adae489
GB		 542 resp->f_rtmax = max_blocksize;
543 resp->f_rtpref = max_blocksize;
1da177e4 544 resp->f_rtmult = PAGE_SIZE;
7adae489
GB		 545 resp->f_wtmax = max_blocksize;
546 resp->f_wtpref = max_blocksize;
1da177e4
LT		 547 resp->f_wtmult = PAGE_SIZE;
548 resp->f_dtpref = PAGE_SIZE;
549 resp->f_maxfilesize = ~(u32) 0;
550 resp->f_properties = NFS3_FSF_DEFAULT;
551
04716e66
BF		 552 nfserr = fh_verify(rqstp, &argp->fh, 0,
553 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
1da177e4
LT		 554
555 /* Check special features of the file system. May request
556 * different read/write sizes for file systems known to have
557 * problems with large blocks */
558 if (nfserr == 0) {
559 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
560
561 /* Note that we don't care for remote fs's here */
12214cb7 562 if (sb->s_magic == MSDOS_SUPER_MAGIC) {
1da177e4
LT		 563 resp->f_properties = NFS3_FSF_BILLYBOY;
564 }
565 resp->f_maxfilesize = sb->s_maxbytes;
566 }
567
568 fh_put(&argp->fh);
569 RETURN_STATUS(nfserr);
570}
571
572/*
573 * Get pathconf info for the specified file
574 */
7111c66e 575static __be32
1da177e4
LT		 576nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
577 struct nfsd3_pathconfres *resp)
578{
c4d987ba 579 __be32 nfserr;
1da177e4
LT		 580
581 dprintk("nfsd: PATHCONF(3) %s\n",
582 SVCFH_fmt(&argp->fh));
583
584 /* Set default pathconf */
585 resp->p_link_max = 255; /* at least */
586 resp->p_name_max = 255; /* at least */
587 resp->p_no_trunc = 0;
588 resp->p_chown_restricted = 1;
589 resp->p_case_insensitive = 0;
590 resp->p_case_preserving = 1;
591
8837abca 592 nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
1da177e4
LT		 593
594 if (nfserr == 0) {
595 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
596
597 /* Note that we don't care for remote fs's here */
598 switch (sb->s_magic) {
599 case EXT2_SUPER_MAGIC:
600 resp->p_link_max = EXT2_LINK_MAX;
601 resp->p_name_max = EXT2_NAME_LEN;
602 break;
12214cb7 603 case MSDOS_SUPER_MAGIC:
1da177e4
LT		 604 resp->p_case_insensitive = 1;
605 resp->p_case_preserving = 0;
606 break;
607 }
608 }
609
610 fh_put(&argp->fh);
611 RETURN_STATUS(nfserr);
612}
613
614
615/*
616 * Commit a file (range) to stable storage.
617 */
7111c66e 618static __be32
1da177e4
LT		 619nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
620 struct nfsd3_commitres *resp)
621{
c4d987ba 622 __be32 nfserr;
1da177e4
LT		 623
624 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
625 SVCFH_fmt(&argp->fh),
626 argp->count,
627 (unsigned long long) argp->offset);
628
629 if (argp->offset > NFS_OFFSET_MAX)
630 RETURN_STATUS(nfserr_inval);
631
632 fh_copy(&resp->fh, &argp->fh);
633 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count);
634
635 RETURN_STATUS(nfserr);
636}
637
638
639/*
640 * NFSv3 Server procedures.
641 * Only the results of non-idempotent operations are cached.
642 */
1da177e4
LT		 643#define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle
644#define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
645#define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
646#define nfsd3_mkdirargs nfsd3_createargs
647#define nfsd3_readdirplusargs nfsd3_readdirargs
648#define nfsd3_fhandleargs nfsd_fhandle
649#define nfsd3_fhandleres nfsd3_attrstat
650#define nfsd3_attrstatres nfsd3_attrstat
651#define nfsd3_wccstatres nfsd3_attrstat
652#define nfsd3_createres nfsd3_diropres
653#define nfsd3_voidres nfsd3_voidargs
654struct nfsd3_voidargs { int dummy; };
655
656#define PROC(name, argt, rest, relt, cache, respsize) \
657 { (svc_procfunc) nfsd3_proc_##name, \
658 (kxdrproc_t) nfs3svc_decode_##argt##args, \
659 (kxdrproc_t) nfs3svc_encode_##rest##res, \
660 (kxdrproc_t) nfs3svc_release_##relt, \
661 sizeof(struct nfsd3_##argt##args), \
662 sizeof(struct nfsd3_##rest##res), \
663 0, \
664 cache, \
665 respsize, \
666 }
667
668#define ST 1 /* status*/
669#define FH 17 /* filehandle with length */
670#define AT 21 /* attributes */
671#define pAT (1+AT) /* post attributes - conditional */
672#define WC (7+pAT) /* WCC attributes */
673
674static struct svc_procedure nfsd_procedures3[22] = {
b9081d90
YZ		 675 [NFS3PROC_NULL] = {
676 .pc_func = (svc_procfunc) nfsd3_proc_null,
677 .pc_encode = (kxdrproc_t) nfs3svc_encode_voidres,
678 .pc_argsize = sizeof(struct nfsd3_voidargs),
679 .pc_ressize = sizeof(struct nfsd3_voidres),
680 .pc_cachetype = RC_NOCACHE,
681 .pc_xdrressize = ST,
682 },
683 [NFS3PROC_GETATTR] = {
684 .pc_func = (svc_procfunc) nfsd3_proc_getattr,
685 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
686 .pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres,
687 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
688 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
689 .pc_ressize = sizeof(struct nfsd3_attrstatres),
690 .pc_cachetype = RC_NOCACHE,
691 .pc_xdrressize = ST+AT,
692 },
693 [NFS3PROC_SETATTR] = {
694 .pc_func = (svc_procfunc) nfsd3_proc_setattr,
695 .pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs,
696 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
697 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
698 .pc_argsize = sizeof(struct nfsd3_sattrargs),
699 .pc_ressize = sizeof(struct nfsd3_wccstatres),
700 .pc_cachetype = RC_REPLBUFF,
701 .pc_xdrressize = ST+WC,
702 },
703 [NFS3PROC_LOOKUP] = {
704 .pc_func = (svc_procfunc) nfsd3_proc_lookup,
705 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
706 .pc_encode = (kxdrproc_t) nfs3svc_encode_diropres,
707 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
708 .pc_argsize = sizeof(struct nfsd3_diropargs),
709 .pc_ressize = sizeof(struct nfsd3_diropres),
710 .pc_cachetype = RC_NOCACHE,
711 .pc_xdrressize = ST+FH+pAT+pAT,
712 },
713 [NFS3PROC_ACCESS] = {
714 .pc_func = (svc_procfunc) nfsd3_proc_access,
715 .pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs,
716 .pc_encode = (kxdrproc_t) nfs3svc_encode_accessres,
717 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
718 .pc_argsize = sizeof(struct nfsd3_accessargs),
719 .pc_ressize = sizeof(struct nfsd3_accessres),
720 .pc_cachetype = RC_NOCACHE,
721 .pc_xdrressize = ST+pAT+1,
722 },
723 [NFS3PROC_READLINK] = {
724 .pc_func = (svc_procfunc) nfsd3_proc_readlink,
725 .pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs,
726 .pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres,
727 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
728 .pc_argsize = sizeof(struct nfsd3_readlinkargs),
729 .pc_ressize = sizeof(struct nfsd3_readlinkres),
730 .pc_cachetype = RC_NOCACHE,
731 .pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
732 },
733 [NFS3PROC_READ] = {
734 .pc_func = (svc_procfunc) nfsd3_proc_read,
735 .pc_decode = (kxdrproc_t) nfs3svc_decode_readargs,
736 .pc_encode = (kxdrproc_t) nfs3svc_encode_readres,
737 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
738 .pc_argsize = sizeof(struct nfsd3_readargs),
739 .pc_ressize = sizeof(struct nfsd3_readres),
740 .pc_cachetype = RC_NOCACHE,
741 .pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
742 },
743 [NFS3PROC_WRITE] = {
744 .pc_func = (svc_procfunc) nfsd3_proc_write,
745 .pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs,
746 .pc_encode = (kxdrproc_t) nfs3svc_encode_writeres,
747 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
748 .pc_argsize = sizeof(struct nfsd3_writeargs),
749 .pc_ressize = sizeof(struct nfsd3_writeres),
750 .pc_cachetype = RC_REPLBUFF,
751 .pc_xdrressize = ST+WC+4,
752 },
753 [NFS3PROC_CREATE] = {
754 .pc_func = (svc_procfunc) nfsd3_proc_create,
755 .pc_decode = (kxdrproc_t) nfs3svc_decode_createargs,
756 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
757 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
758 .pc_argsize = sizeof(struct nfsd3_createargs),
759 .pc_ressize = sizeof(struct nfsd3_createres),
760 .pc_cachetype = RC_REPLBUFF,
761 .pc_xdrressize = ST+(1+FH+pAT)+WC,
762 },
763 [NFS3PROC_MKDIR] = {
764 .pc_func = (svc_procfunc) nfsd3_proc_mkdir,
765 .pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs,
766 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
767 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
768 .pc_argsize = sizeof(struct nfsd3_mkdirargs),
769 .pc_ressize = sizeof(struct nfsd3_createres),
770 .pc_cachetype = RC_REPLBUFF,
771 .pc_xdrressize = ST+(1+FH+pAT)+WC,
772 },
773 [NFS3PROC_SYMLINK] = {
774 .pc_func = (svc_procfunc) nfsd3_proc_symlink,
775 .pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs,
776 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
777 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
778 .pc_argsize = sizeof(struct nfsd3_symlinkargs),
779 .pc_ressize = sizeof(struct nfsd3_createres),
780 .pc_cachetype = RC_REPLBUFF,
781 .pc_xdrressize = ST+(1+FH+pAT)+WC,
782 },
783 [NFS3PROC_MKNOD] = {
784 .pc_func = (svc_procfunc) nfsd3_proc_mknod,
785 .pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs,
786 .pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
787 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
788 .pc_argsize = sizeof(struct nfsd3_mknodargs),
789 .pc_ressize = sizeof(struct nfsd3_createres),
790 .pc_cachetype = RC_REPLBUFF,
791 .pc_xdrressize = ST+(1+FH+pAT)+WC,
792 },
793 [NFS3PROC_REMOVE] = {
794 .pc_func = (svc_procfunc) nfsd3_proc_remove,
795 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
796 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
797 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
798 .pc_argsize = sizeof(struct nfsd3_diropargs),
799 .pc_ressize = sizeof(struct nfsd3_wccstatres),
800 .pc_cachetype = RC_REPLBUFF,
801 .pc_xdrressize = ST+WC,
802 },
803 [NFS3PROC_RMDIR] = {
804 .pc_func = (svc_procfunc) nfsd3_proc_rmdir,
805 .pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
806 .pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
807 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
808 .pc_argsize = sizeof(struct nfsd3_diropargs),
809 .pc_ressize = sizeof(struct nfsd3_wccstatres),
810 .pc_cachetype = RC_REPLBUFF,
811 .pc_xdrressize = ST+WC,
812 },
813 [NFS3PROC_RENAME] = {
814 .pc_func = (svc_procfunc) nfsd3_proc_rename,
815 .pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs,
816 .pc_encode = (kxdrproc_t) nfs3svc_encode_renameres,
817 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
818 .pc_argsize = sizeof(struct nfsd3_renameargs),
819 .pc_ressize = sizeof(struct nfsd3_renameres),
820 .pc_cachetype = RC_REPLBUFF,
821 .pc_xdrressize = ST+WC+WC,
822 },
823 [NFS3PROC_LINK] = {
824 .pc_func = (svc_procfunc) nfsd3_proc_link,
825 .pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs,
826 .pc_encode = (kxdrproc_t) nfs3svc_encode_linkres,
827 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
828 .pc_argsize = sizeof(struct nfsd3_linkargs),
829 .pc_ressize = sizeof(struct nfsd3_linkres),
830 .pc_cachetype = RC_REPLBUFF,
831 .pc_xdrressize = ST+pAT+WC,
832 },
833 [NFS3PROC_READDIR] = {
834 .pc_func = (svc_procfunc) nfsd3_proc_readdir,
835 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs,
836 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
837 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
838 .pc_argsize = sizeof(struct nfsd3_readdirargs),
839 .pc_ressize = sizeof(struct nfsd3_readdirres),
840 .pc_cachetype = RC_NOCACHE,
841 },
842 [NFS3PROC_READDIRPLUS] = {
843 .pc_func = (svc_procfunc) nfsd3_proc_readdirplus,
844 .pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs,
845 .pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
846 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
847 .pc_argsize = sizeof(struct nfsd3_readdirplusargs),
848 .pc_ressize = sizeof(struct nfsd3_readdirres),
849 .pc_cachetype = RC_NOCACHE,
850 },
851 [NFS3PROC_FSSTAT] = {
852 .pc_func = (svc_procfunc) nfsd3_proc_fsstat,
853 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
854 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres,
855 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
856 .pc_ressize = sizeof(struct nfsd3_fsstatres),
857 .pc_cachetype = RC_NOCACHE,
858 .pc_xdrressize = ST+pAT+2*6+1,
859 },
860 [NFS3PROC_FSINFO] = {
861 .pc_func = (svc_procfunc) nfsd3_proc_fsinfo,
862 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
863 .pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores,
864 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
865 .pc_ressize = sizeof(struct nfsd3_fsinfores),
866 .pc_cachetype = RC_NOCACHE,
867 .pc_xdrressize = ST+pAT+12,
868 },
869 [NFS3PROC_PATHCONF] = {
870 .pc_func = (svc_procfunc) nfsd3_proc_pathconf,
871 .pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
872 .pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres,
873 .pc_argsize = sizeof(struct nfsd3_fhandleargs),
874 .pc_ressize = sizeof(struct nfsd3_pathconfres),
875 .pc_cachetype = RC_NOCACHE,
876 .pc_xdrressize = ST+pAT+6,
877 },
878 [NFS3PROC_COMMIT] = {
879 .pc_func = (svc_procfunc) nfsd3_proc_commit,
880 .pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs,
881 .pc_encode = (kxdrproc_t) nfs3svc_encode_commitres,
882 .pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
883 .pc_argsize = sizeof(struct nfsd3_commitargs),
884 .pc_ressize = sizeof(struct nfsd3_commitres),
885 .pc_cachetype = RC_NOCACHE,
886 .pc_xdrressize = ST+WC+2,
887 },
1da177e4
LT		 888};
889
890struct svc_version nfsd_version3 = {
891 .vs_vers = 3,
892 .vs_nproc = 22,
893 .vs_proc = nfsd_procedures3,
894 .vs_dispatch = nfsd_dispatch,
895 .vs_xdrsize = NFS3_SVC_XDRSIZE,
896};
kernel source for telekom puls (alcatel/mediatek)