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mm: fix handling of pagesets for downed cpus
[linux-2.6/mini2440.git] / fs / nfsd / nfs3proc.c
blob9dbd2eb91281b14a4f3472c3ac5dad046c4525c9
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 __be32
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 __be32
56 nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
57 struct nfsd3_attrstat *resp)
58 {
59 int err;
60 __be32 nfserr;
61
62 dprintk("nfsd: GETATTR(3) %s\n",
63 SVCFH_fmt(&argp->fh));
64
65 fh_copy(&resp->fh, &argp->fh);
66 nfserr = fh_verify(rqstp, &resp->fh, 0,
67 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
68 if (nfserr)
69 RETURN_STATUS(nfserr);
70
71 err = vfs_getattr(resp->fh.fh_export->ex_path.mnt,
72 resp->fh.fh_dentry, &resp->stat);
73 nfserr = nfserrno(err);
74
75 RETURN_STATUS(nfserr);
76 }
77
78 /*
79 * Set a file's attributes
80 */
81 static __be32
82 nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
83 struct nfsd3_attrstat *resp)
84 {
85 __be32 nfserr;
86
87 dprintk("nfsd: SETATTR(3) %s\n",
88 SVCFH_fmt(&argp->fh));
89
90 fh_copy(&resp->fh, &argp->fh);
91 nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
92 argp->check_guard, argp->guardtime);
93 RETURN_STATUS(nfserr);
94 }
95
96 /*
97 * Look up a path name component
98 */
99 static __be32
100 nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
101 struct nfsd3_diropres *resp)
102 {
103 __be32 nfserr;
104
105 dprintk("nfsd: LOOKUP(3) %s %.*s\n",
106 SVCFH_fmt(&argp->fh),
107 argp->len,
108 argp->name);
109
110 fh_copy(&resp->dirfh, &argp->fh);
111 fh_init(&resp->fh, NFS3_FHSIZE);
112
113 nfserr = nfsd_lookup(rqstp, &resp->dirfh,
114 argp->name,
115 argp->len,
116 &resp->fh);
117 RETURN_STATUS(nfserr);
118 }
119
120 /*
121 * Check file access
122 */
123 static __be32
124 nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
125 struct nfsd3_accessres *resp)
126 {
127 __be32 nfserr;
128
129 dprintk("nfsd: ACCESS(3) %s 0x%x\n",
130 SVCFH_fmt(&argp->fh),
131 argp->access);
132
133 fh_copy(&resp->fh, &argp->fh);
134 resp->access = argp->access;
135 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
136 RETURN_STATUS(nfserr);
137 }
138
139 /*
140 * Read a symlink.
141 */
142 static __be32
143 nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
144 struct nfsd3_readlinkres *resp)
145 {
146 __be32 nfserr;
147
148 dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
149
150 /* Read the symlink. */
151 fh_copy(&resp->fh, &argp->fh);
152 resp->len = NFS3_MAXPATHLEN;
153 nfserr = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
154 RETURN_STATUS(nfserr);
155 }
156
157 /*
158 * Read a portion of a file.
159 */
160 static __be32
161 nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
162 struct nfsd3_readres *resp)
163 {
164 __be32 nfserr;
165 u32 max_blocksize = svc_max_payload(rqstp);
166
167 dprintk("nfsd: READ(3) %s %lu bytes at %lu\n",
168 SVCFH_fmt(&argp->fh),
169 (unsigned long) argp->count,
170 (unsigned long) argp->offset);
171
172 /* Obtain buffer pointer for payload.
173 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
174 * + 1 (xdr opaque byte count) = 26
175 */
176
177 resp->count = argp->count;
178 if (max_blocksize < resp->count)
179 resp->count = max_blocksize;
180
181 svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
182
183 fh_copy(&resp->fh, &argp->fh);
184 nfserr = nfsd_read(rqstp, &resp->fh, NULL,
185 argp->offset,
186 rqstp->rq_vec, argp->vlen,
187 &resp->count);
188 if (nfserr == 0) {
189 struct inode *inode = resp->fh.fh_dentry->d_inode;
190
191 resp->eof = (argp->offset + resp->count) >= inode->i_size;
192 }
193
194 RETURN_STATUS(nfserr);
195 }
196
197 /*
198 * Write data to a file
199 */
200 static __be32
201 nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
202 struct nfsd3_writeres *resp)
203 {
204 __be32 nfserr;
205
206 dprintk("nfsd: WRITE(3) %s %d bytes at %ld%s\n",
207 SVCFH_fmt(&argp->fh),
208 argp->len,
209 (unsigned long) argp->offset,
210 argp->stable? " stable" : "");
211
212 fh_copy(&resp->fh, &argp->fh);
213 resp->committed = argp->stable;
214 nfserr = nfsd_write(rqstp, &resp->fh, NULL,
215 argp->offset,
216 rqstp->rq_vec, argp->vlen,
217 argp->len,
218 &resp->committed);
219 resp->count = argp->count;
220 RETURN_STATUS(nfserr);
221 }
222
223 /*
224 * With NFSv3, CREATE processing is a lot easier than with NFSv2.
225 * At least in theory; we'll see how it fares in practice when the
226 * first reports about SunOS compatibility problems start to pour in...
227 */
228 static __be32
229 nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
230 struct nfsd3_diropres *resp)
231 {
232 svc_fh *dirfhp, *newfhp = NULL;
233 struct iattr *attr;
234 __be32 nfserr;
235
236 dprintk("nfsd: CREATE(3) %s %.*s\n",
237 SVCFH_fmt(&argp->fh),
238 argp->len,
239 argp->name);
240
241 dirfhp = fh_copy(&resp->dirfh, &argp->fh);
242 newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
243 attr = &argp->attrs;
244
245 /* Get the directory inode */
246 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_CREATE);
247 if (nfserr)
248 RETURN_STATUS(nfserr);
249
250 /* Unfudge the mode bits */
251 attr->ia_mode &= ~S_IFMT;
252 if (!(attr->ia_valid & ATTR_MODE)) {
253 attr->ia_valid |= ATTR_MODE;
254 attr->ia_mode = S_IFREG;
255 } else {
256 attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
257 }
258
259 /* Now create the file and set attributes */
260 nfserr = nfsd_create_v3(rqstp, dirfhp, argp->name, argp->len,
261 attr, newfhp,
262 argp->createmode, argp->verf, NULL, NULL);
263
264 RETURN_STATUS(nfserr);
265 }
266
267 /*
268 * Make directory. This operation is not idempotent.
269 */
270 static __be32
271 nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
272 struct nfsd3_diropres *resp)
273 {
274 __be32 nfserr;
275
276 dprintk("nfsd: MKDIR(3) %s %.*s\n",
277 SVCFH_fmt(&argp->fh),
278 argp->len,
279 argp->name);
280
281 argp->attrs.ia_valid &= ~ATTR_SIZE;
282 fh_copy(&resp->dirfh, &argp->fh);
283 fh_init(&resp->fh, NFS3_FHSIZE);
284 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
285 &argp->attrs, S_IFDIR, 0, &resp->fh);
286
287 RETURN_STATUS(nfserr);
288 }
289
290 static __be32
291 nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
292 struct nfsd3_diropres *resp)
293 {
294 __be32 nfserr;
295
296 dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
297 SVCFH_fmt(&argp->ffh),
298 argp->flen, argp->fname,
299 argp->tlen, argp->tname);
300
301 fh_copy(&resp->dirfh, &argp->ffh);
302 fh_init(&resp->fh, NFS3_FHSIZE);
303 nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
304 argp->tname, argp->tlen,
305 &resp->fh, &argp->attrs);
306 RETURN_STATUS(nfserr);
307 }
308
309 /*
310 * Make socket/fifo/device.
311 */
312 static __be32
313 nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
314 struct nfsd3_diropres *resp)
315 {
316 __be32 nfserr;
317 int type;
318 dev_t rdev = 0;
319
320 dprintk("nfsd: MKNOD(3) %s %.*s\n",
321 SVCFH_fmt(&argp->fh),
322 argp->len,
323 argp->name);
324
325 fh_copy(&resp->dirfh, &argp->fh);
326 fh_init(&resp->fh, NFS3_FHSIZE);
327
328 if (argp->ftype == 0 || argp->ftype >= NF3BAD)
329 RETURN_STATUS(nfserr_inval);
330 if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
331 rdev = MKDEV(argp->major, argp->minor);
332 if (MAJOR(rdev) != argp->major ||
333 MINOR(rdev) != argp->minor)
334 RETURN_STATUS(nfserr_inval);
335 } else
336 if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
337 RETURN_STATUS(nfserr_inval);
338
339 type = nfs3_ftypes[argp->ftype];
340 nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
341 &argp->attrs, type, rdev, &resp->fh);
342
343 RETURN_STATUS(nfserr);
344 }
345
346 /*
347 * Remove file/fifo/socket etc.
348 */
349 static __be32
350 nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
351 struct nfsd3_attrstat *resp)
352 {
353 __be32 nfserr;
354
355 dprintk("nfsd: REMOVE(3) %s %.*s\n",
356 SVCFH_fmt(&argp->fh),
357 argp->len,
358 argp->name);
359
360 /* Unlink. -S_IFDIR means file must not be a directory */
361 fh_copy(&resp->fh, &argp->fh);
362 nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
363 RETURN_STATUS(nfserr);
364 }
365
366 /*
367 * Remove a directory
368 */
369 static __be32
370 nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
371 struct nfsd3_attrstat *resp)
372 {
373 __be32 nfserr;
374
375 dprintk("nfsd: RMDIR(3) %s %.*s\n",
376 SVCFH_fmt(&argp->fh),
377 argp->len,
378 argp->name);
379
380 fh_copy(&resp->fh, &argp->fh);
381 nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
382 RETURN_STATUS(nfserr);
383 }
384
385 static __be32
386 nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
387 struct nfsd3_renameres *resp)
388 {
389 __be32 nfserr;
390
391 dprintk("nfsd: RENAME(3) %s %.*s ->\n",
392 SVCFH_fmt(&argp->ffh),
393 argp->flen,
394 argp->fname);
395 dprintk("nfsd: -> %s %.*s\n",
396 SVCFH_fmt(&argp->tfh),
397 argp->tlen,
398 argp->tname);
399
400 fh_copy(&resp->ffh, &argp->ffh);
401 fh_copy(&resp->tfh, &argp->tfh);
402 nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
403 &resp->tfh, argp->tname, argp->tlen);
404 RETURN_STATUS(nfserr);
405 }
406
407 static __be32
408 nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
409 struct nfsd3_linkres *resp)
410 {
411 __be32 nfserr;
412
413 dprintk("nfsd: LINK(3) %s ->\n",
414 SVCFH_fmt(&argp->ffh));
415 dprintk("nfsd: -> %s %.*s\n",
416 SVCFH_fmt(&argp->tfh),
417 argp->tlen,
418 argp->tname);
419
420 fh_copy(&resp->fh, &argp->ffh);
421 fh_copy(&resp->tfh, &argp->tfh);
422 nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
423 &resp->fh);
424 RETURN_STATUS(nfserr);
425 }
426
427 /*
428 * Read a portion of a directory.
429 */
430 static __be32
431 nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
432 struct nfsd3_readdirres *resp)
433 {
434 __be32 nfserr;
435 int count;
436
437 dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
438 SVCFH_fmt(&argp->fh),
439 argp->count, (u32) argp->cookie);
440
441 /* Make sure we've room for the NULL ptr & eof flag, and shrink to
442 * client read size */
443 count = (argp->count >> 2) - 2;
444
445 /* Read directory and encode entries on the fly */
446 fh_copy(&resp->fh, &argp->fh);
447
448 resp->buflen = count;
449 resp->common.err = nfs_ok;
450 resp->buffer = argp->buffer;
451 resp->rqstp = rqstp;
452 nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t*) &argp->cookie,
453 &resp->common, nfs3svc_encode_entry);
454 memcpy(resp->verf, argp->verf, 8);
455 resp->count = resp->buffer - argp->buffer;
456 if (resp->offset)
457 xdr_encode_hyper(resp->offset, argp->cookie);
458
459 RETURN_STATUS(nfserr);
460 }
461
462 /*
463 * Read a portion of a directory, including file handles and attrs.
464 * For now, we choose to ignore the dircount parameter.
465 */
466 static __be32
467 nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
468 struct nfsd3_readdirres *resp)
469 {
470 __be32 nfserr;
471 int count = 0;
472 loff_t offset;
473 int i;
474 caddr_t page_addr = NULL;
475
476 dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
477 SVCFH_fmt(&argp->fh),
478 argp->count, (u32) argp->cookie);
479
480 /* Convert byte count to number of words (i.e. >> 2),
481 * and reserve room for the NULL ptr & eof flag (-2 words) */
482 resp->count = (argp->count >> 2) - 2;
483
484 /* Read directory and encode entries on the fly */
485 fh_copy(&resp->fh, &argp->fh);
486
487 resp->common.err = nfs_ok;
488 resp->buffer = argp->buffer;
489 resp->buflen = resp->count;
490 resp->rqstp = rqstp;
491 offset = argp->cookie;
492 nfserr = nfsd_readdir(rqstp, &resp->fh,
493 &offset,
494 &resp->common,
495 nfs3svc_encode_entry_plus);
496 memcpy(resp->verf, argp->verf, 8);
497 for (i=1; i<rqstp->rq_resused ; i++) {
498 page_addr = page_address(rqstp->rq_respages[i]);
499
500 if (((caddr_t)resp->buffer >= page_addr) &&
501 ((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
502 count += (caddr_t)resp->buffer - page_addr;
503 break;
504 }
505 count += PAGE_SIZE;
506 }
507 resp->count = count >> 2;
508 if (resp->offset) {
509 if (unlikely(resp->offset1)) {
510 /* we ended up with offset on a page boundary */
511 *resp->offset = htonl(offset >> 32);
512 *resp->offset1 = htonl(offset & 0xffffffff);
513 resp->offset1 = NULL;
514 } else {
515 xdr_encode_hyper(resp->offset, offset);
516 }
517 }
518
519 RETURN_STATUS(nfserr);
520 }
521
522 /*
523 * Get file system stats
524 */
525 static __be32
526 nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
527 struct nfsd3_fsstatres *resp)
528 {
529 __be32 nfserr;
530
531 dprintk("nfsd: FSSTAT(3) %s\n",
532 SVCFH_fmt(&argp->fh));
533
534 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
535 fh_put(&argp->fh);
536 RETURN_STATUS(nfserr);
537 }
538
539 /*
540 * Get file system info
541 */
542 static __be32
543 nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
544 struct nfsd3_fsinfores *resp)
545 {
546 __be32 nfserr;
547 u32 max_blocksize = svc_max_payload(rqstp);
548
549 dprintk("nfsd: FSINFO(3) %s\n",
550 SVCFH_fmt(&argp->fh));
551
552 resp->f_rtmax = max_blocksize;
553 resp->f_rtpref = max_blocksize;
554 resp->f_rtmult = PAGE_SIZE;
555 resp->f_wtmax = max_blocksize;
556 resp->f_wtpref = max_blocksize;
557 resp->f_wtmult = PAGE_SIZE;
558 resp->f_dtpref = PAGE_SIZE;
559 resp->f_maxfilesize = ~(u32) 0;
560 resp->f_properties = NFS3_FSF_DEFAULT;
561
562 nfserr = fh_verify(rqstp, &argp->fh, 0,
563 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
564
565 /* Check special features of the file system. May request
566 * different read/write sizes for file systems known to have
567 * problems with large blocks */
568 if (nfserr == 0) {
569 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
570
571 /* Note that we don't care for remote fs's here */
572 if (sb->s_magic == 0x4d44 /* MSDOS_SUPER_MAGIC */) {
573 resp->f_properties = NFS3_FSF_BILLYBOY;
574 }
575 resp->f_maxfilesize = sb->s_maxbytes;
576 }
577
578 fh_put(&argp->fh);
579 RETURN_STATUS(nfserr);
580 }
581
582 /*
583 * Get pathconf info for the specified file
584 */
585 static __be32
586 nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
587 struct nfsd3_pathconfres *resp)
588 {
589 __be32 nfserr;
590
591 dprintk("nfsd: PATHCONF(3) %s\n",
592 SVCFH_fmt(&argp->fh));
593
594 /* Set default pathconf */
595 resp->p_link_max = 255; /* at least */
596 resp->p_name_max = 255; /* at least */
597 resp->p_no_trunc = 0;
598 resp->p_chown_restricted = 1;
599 resp->p_case_insensitive = 0;
600 resp->p_case_preserving = 1;
601
602 nfserr = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
603
604 if (nfserr == 0) {
605 struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
606
607 /* Note that we don't care for remote fs's here */
608 switch (sb->s_magic) {
609 case EXT2_SUPER_MAGIC:
610 resp->p_link_max = EXT2_LINK_MAX;
611 resp->p_name_max = EXT2_NAME_LEN;
612 break;
613 case 0x4d44: /* MSDOS_SUPER_MAGIC */
614 resp->p_case_insensitive = 1;
615 resp->p_case_preserving = 0;
616 break;
617 }
618 }
619
620 fh_put(&argp->fh);
621 RETURN_STATUS(nfserr);
622 }
623
624
625 /*
626 * Commit a file (range) to stable storage.
627 */
628 static __be32
629 nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
630 struct nfsd3_commitres *resp)
631 {
632 __be32 nfserr;
633
634 dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
635 SVCFH_fmt(&argp->fh),
636 argp->count,
637 (unsigned long long) argp->offset);
638
639 if (argp->offset > NFS_OFFSET_MAX)
640 RETURN_STATUS(nfserr_inval);
641
642 fh_copy(&resp->fh, &argp->fh);
643 nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count);
644
645 RETURN_STATUS(nfserr);
646 }
647
648
649 /*
650 * NFSv3 Server procedures.
651 * Only the results of non-idempotent operations are cached.
652 */
653 #define nfs3svc_decode_voidargs NULL
654 #define nfs3svc_release_void NULL
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 PROC(null, void, void, void, RC_NOCACHE, ST),
688 PROC(getattr, fhandle, attrstat, fhandle, RC_NOCACHE, ST+AT),
689 PROC(setattr, sattr, wccstat, fhandle, RC_REPLBUFF, ST+WC),
690 PROC(lookup, dirop, dirop, fhandle2, RC_NOCACHE, ST+FH+pAT+pAT),
691 PROC(access, access, access, fhandle, RC_NOCACHE, ST+pAT+1),
692 PROC(readlink, readlink, readlink, fhandle, RC_NOCACHE, ST+pAT+1+NFS3_MAXPATHLEN/4),
693 PROC(read, read, read, fhandle, RC_NOCACHE, ST+pAT+4+NFSSVC_MAXBLKSIZE/4),
694 PROC(write, write, write, fhandle, RC_REPLBUFF, ST+WC+4),
695 PROC(create, create, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
696 PROC(mkdir, mkdir, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
697 PROC(symlink, symlink, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
698 PROC(mknod, mknod, create, fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
699 PROC(remove, dirop, wccstat, fhandle, RC_REPLBUFF, ST+WC),
700 PROC(rmdir, dirop, wccstat, fhandle, RC_REPLBUFF, ST+WC),
701 PROC(rename, rename, rename, fhandle2, RC_REPLBUFF, ST+WC+WC),
702 PROC(link, link, link, fhandle2, RC_REPLBUFF, ST+pAT+WC),
703 PROC(readdir, readdir, readdir, fhandle, RC_NOCACHE, 0),
704 PROC(readdirplus,readdirplus, readdir, fhandle, RC_NOCACHE, 0),
705 PROC(fsstat, fhandle, fsstat, void, RC_NOCACHE, ST+pAT+2*6+1),
706 PROC(fsinfo, fhandle, fsinfo, void, RC_NOCACHE, ST+pAT+12),
707 PROC(pathconf, fhandle, pathconf, void, RC_NOCACHE, ST+pAT+6),
708 PROC(commit, commit, commit, fhandle, RC_NOCACHE, ST+WC+2),
709 };
710
711 struct svc_version nfsd_version3 = {
712 .vs_vers = 3,
713 .vs_nproc = 22,
714 .vs_proc = nfsd_procedures3,
715 .vs_dispatch = nfsd_dispatch,
716 .vs_xdrsize = NFS3_SVC_XDRSIZE,
717 };
Support for the Chinese Samsung S3C2440 based development boards