1
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6
7
8#include <linux/namei.h>
9
10#include "cache.h"
11#include "xdr.h"
12#include "vfs.h"
13
14typedef struct svc_rqst svc_rqst;
15typedef struct svc_buf svc_buf;
16
17#define NFSDDBG_FACILITY NFSDDBG_PROC
18
19
20static __be32
21nfsd_proc_null(struct svc_rqst *rqstp)
22{
23 return nfs_ok;
24}
25
26static __be32
27nfsd_return_attrs(__be32 err, struct nfsd_attrstat *resp)
28{
29 if (err) return err;
30 return fh_getattr(&resp->fh, &resp->stat);
31}
32static __be32
33nfsd_return_dirop(__be32 err, struct nfsd_diropres *resp)
34{
35 if (err) return err;
36 return fh_getattr(&resp->fh, &resp->stat);
37}
38
39
40
41
42static __be32
43nfsd_proc_getattr(struct svc_rqst *rqstp)
44{
45 struct nfsd_fhandle *argp = rqstp->rq_argp;
46 struct nfsd_attrstat *resp = rqstp->rq_resp;
47 __be32 nfserr;
48 dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
49
50 fh_copy(&resp->fh, &argp->fh);
51 nfserr = fh_verify(rqstp, &resp->fh, 0,
52 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
53 return nfsd_return_attrs(nfserr, resp);
54}
55
56
57
58
59
60static __be32
61nfsd_proc_setattr(struct svc_rqst *rqstp)
62{
63 struct nfsd_sattrargs *argp = rqstp->rq_argp;
64 struct nfsd_attrstat *resp = rqstp->rq_resp;
65 struct iattr *iap = &argp->attrs;
66 struct svc_fh *fhp;
67 __be32 nfserr;
68
69 dprintk("nfsd: SETATTR %s, valid=%x, size=%ld\n",
70 SVCFH_fmt(&argp->fh),
71 argp->attrs.ia_valid, (long) argp->attrs.ia_size);
72
73 fhp = fh_copy(&resp->fh, &argp->fh);
74
75
76
77
78
79
80
81
82
83
84
85
86#define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
87#define MAX_TOUCH_TIME_ERROR (30*60)
88 if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET &&
89 iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec) {
90
91
92
93
94
95
96
97 time_t delta = iap->ia_atime.tv_sec - get_seconds();
98
99 nfserr = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP);
100 if (nfserr)
101 goto done;
102
103 if (delta < 0)
104 delta = -delta;
105 if (delta < MAX_TOUCH_TIME_ERROR &&
106 setattr_prepare(fhp->fh_dentry, iap) != 0) {
107
108
109
110
111
112 iap->ia_valid &= ~BOTH_TIME_SET;
113 }
114 }
115
116 nfserr = nfsd_setattr(rqstp, fhp, iap, 0, (time_t)0);
117done:
118 return nfsd_return_attrs(nfserr, resp);
119}
120
121
122
123
124
125
126
127static __be32
128nfsd_proc_lookup(struct svc_rqst *rqstp)
129{
130 struct nfsd_diropargs *argp = rqstp->rq_argp;
131 struct nfsd_diropres *resp = rqstp->rq_resp;
132 __be32 nfserr;
133
134 dprintk("nfsd: LOOKUP %s %.*s\n",
135 SVCFH_fmt(&argp->fh), argp->len, argp->name);
136
137 fh_init(&resp->fh, NFS_FHSIZE);
138 nfserr = nfsd_lookup(rqstp, &argp->fh, argp->name, argp->len,
139 &resp->fh);
140
141 fh_put(&argp->fh);
142 return nfsd_return_dirop(nfserr, resp);
143}
144
145
146
147
148static __be32
149nfsd_proc_readlink(struct svc_rqst *rqstp)
150{
151 struct nfsd_readlinkargs *argp = rqstp->rq_argp;
152 struct nfsd_readlinkres *resp = rqstp->rq_resp;
153 __be32 nfserr;
154
155 dprintk("nfsd: READLINK %s\n", SVCFH_fmt(&argp->fh));
156
157
158 resp->len = NFS_MAXPATHLEN;
159 nfserr = nfsd_readlink(rqstp, &argp->fh, argp->buffer, &resp->len);
160
161 fh_put(&argp->fh);
162 return nfserr;
163}
164
165
166
167
168
169static __be32
170nfsd_proc_read(struct svc_rqst *rqstp)
171{
172 struct nfsd_readargs *argp = rqstp->rq_argp;
173 struct nfsd_readres *resp = rqstp->rq_resp;
174 __be32 nfserr;
175
176 dprintk("nfsd: READ %s %d bytes at %d\n",
177 SVCFH_fmt(&argp->fh),
178 argp->count, argp->offset);
179
180
181
182
183
184 if (NFSSVC_MAXBLKSIZE_V2 < argp->count) {
185 char buf[RPC_MAX_ADDRBUFLEN];
186 printk(KERN_NOTICE
187 "oversized read request from %s (%d bytes)\n",
188 svc_print_addr(rqstp, buf, sizeof(buf)),
189 argp->count);
190 argp->count = NFSSVC_MAXBLKSIZE_V2;
191 }
192 svc_reserve_auth(rqstp, (19<<2) + argp->count + 4);
193
194 resp->count = argp->count;
195 nfserr = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh),
196 argp->offset,
197 rqstp->rq_vec, argp->vlen,
198 &resp->count);
199
200 if (nfserr) return nfserr;
201 return fh_getattr(&resp->fh, &resp->stat);
202}
203
204
205
206
207
208static __be32
209nfsd_proc_write(struct svc_rqst *rqstp)
210{
211 struct nfsd_writeargs *argp = rqstp->rq_argp;
212 struct nfsd_attrstat *resp = rqstp->rq_resp;
213 __be32 nfserr;
214 unsigned long cnt = argp->len;
215 unsigned int nvecs;
216
217 dprintk("nfsd: WRITE %s %d bytes at %d\n",
218 SVCFH_fmt(&argp->fh),
219 argp->len, argp->offset);
220
221 nvecs = svc_fill_write_vector(rqstp, &argp->first, cnt);
222 if (!nvecs)
223 return nfserr_io;
224 nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh),
225 argp->offset, rqstp->rq_vec, nvecs,
226 &cnt, NFS_DATA_SYNC);
227 return nfsd_return_attrs(nfserr, resp);
228}
229
230
231
232
233
234
235
236static __be32
237nfsd_proc_create(struct svc_rqst *rqstp)
238{
239 struct nfsd_createargs *argp = rqstp->rq_argp;
240 struct nfsd_diropres *resp = rqstp->rq_resp;
241 svc_fh *dirfhp = &argp->fh;
242 svc_fh *newfhp = &resp->fh;
243 struct iattr *attr = &argp->attrs;
244 struct inode *inode;
245 struct dentry *dchild;
246 int type, mode;
247 __be32 nfserr;
248 int hosterr;
249 dev_t rdev = 0, wanted = new_decode_dev(attr->ia_size);
250
251 dprintk("nfsd: CREATE %s %.*s\n",
252 SVCFH_fmt(dirfhp), argp->len, argp->name);
253
254
255 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_EXEC);
256 if (nfserr)
257 goto done;
258
259
260
261 nfserr = nfserr_exist;
262 if (isdotent(argp->name, argp->len))
263 goto done;
264 hosterr = fh_want_write(dirfhp);
265 if (hosterr) {
266 nfserr = nfserrno(hosterr);
267 goto done;
268 }
269
270 fh_lock_nested(dirfhp, I_MUTEX_PARENT);
271 dchild = lookup_one_len(argp->name, dirfhp->fh_dentry, argp->len);
272 if (IS_ERR(dchild)) {
273 nfserr = nfserrno(PTR_ERR(dchild));
274 goto out_unlock;
275 }
276 fh_init(newfhp, NFS_FHSIZE);
277 nfserr = fh_compose(newfhp, dirfhp->fh_export, dchild, dirfhp);
278 if (!nfserr && d_really_is_negative(dchild))
279 nfserr = nfserr_noent;
280 dput(dchild);
281 if (nfserr) {
282 if (nfserr != nfserr_noent)
283 goto out_unlock;
284
285
286
287
288 nfserr = nfserr_acces;
289 if (!newfhp->fh_dentry) {
290 printk(KERN_WARNING
291 "nfsd_proc_create: file handle not verified\n");
292 goto out_unlock;
293 }
294 }
295
296 inode = d_inode(newfhp->fh_dentry);
297
298
299 if (attr->ia_valid & ATTR_MODE) {
300 type = attr->ia_mode & S_IFMT;
301 mode = attr->ia_mode & ~S_IFMT;
302 if (!type) {
303
304
305 if (inode) {
306 type = inode->i_mode & S_IFMT;
307 switch(type) {
308 case S_IFCHR:
309 case S_IFBLK:
310
311 rdev = inode->i_rdev;
312 attr->ia_valid |= ATTR_SIZE;
313
314
315 case S_IFIFO:
316
317
318
319
320
321 nfserr = nfsd_permission(rqstp,
322 newfhp->fh_export,
323 newfhp->fh_dentry,
324 NFSD_MAY_WRITE|NFSD_MAY_LOCAL_ACCESS);
325 if (nfserr && nfserr != nfserr_rofs)
326 goto out_unlock;
327 }
328 } else
329 type = S_IFREG;
330 }
331 } else if (inode) {
332 type = inode->i_mode & S_IFMT;
333 mode = inode->i_mode & ~S_IFMT;
334 } else {
335 type = S_IFREG;
336 mode = 0;
337 }
338
339 attr->ia_valid |= ATTR_MODE;
340 attr->ia_mode = mode;
341
342
343
344
345 if (type != S_IFREG) {
346 if (type != S_IFBLK && type != S_IFCHR) {
347 rdev = 0;
348 } else if (type == S_IFCHR && !(attr->ia_valid & ATTR_SIZE)) {
349
350 type = S_IFIFO;
351 } else {
352
353 if (!rdev)
354 rdev = wanted;
355 }
356
357
358 attr->ia_valid &= ~ATTR_SIZE;
359
360
361 nfserr = nfserr_exist;
362 if (inode && type != (inode->i_mode & S_IFMT))
363 goto out_unlock;
364 }
365
366 nfserr = 0;
367 if (!inode) {
368
369 nfserr = nfsd_create_locked(rqstp, dirfhp, argp->name,
370 argp->len, attr, type, rdev, newfhp);
371 } else if (type == S_IFREG) {
372 dprintk("nfsd: existing %s, valid=%x, size=%ld\n",
373 argp->name, attr->ia_valid, (long) attr->ia_size);
374
375
376
377
378 attr->ia_valid &= ATTR_SIZE;
379 if (attr->ia_valid)
380 nfserr = nfsd_setattr(rqstp, newfhp, attr, 0, (time_t)0);
381 }
382
383out_unlock:
384
385 fh_unlock(dirfhp);
386 fh_drop_write(dirfhp);
387done:
388 fh_put(dirfhp);
389 return nfsd_return_dirop(nfserr, resp);
390}
391
392static __be32
393nfsd_proc_remove(struct svc_rqst *rqstp)
394{
395 struct nfsd_diropargs *argp = rqstp->rq_argp;
396 __be32 nfserr;
397
398 dprintk("nfsd: REMOVE %s %.*s\n", SVCFH_fmt(&argp->fh),
399 argp->len, argp->name);
400
401
402 nfserr = nfsd_unlink(rqstp, &argp->fh, -S_IFDIR, argp->name, argp->len);
403 fh_put(&argp->fh);
404 return nfserr;
405}
406
407static __be32
408nfsd_proc_rename(struct svc_rqst *rqstp)
409{
410 struct nfsd_renameargs *argp = rqstp->rq_argp;
411 __be32 nfserr;
412
413 dprintk("nfsd: RENAME %s %.*s -> \n",
414 SVCFH_fmt(&argp->ffh), argp->flen, argp->fname);
415 dprintk("nfsd: -> %s %.*s\n",
416 SVCFH_fmt(&argp->tfh), argp->tlen, argp->tname);
417
418 nfserr = nfsd_rename(rqstp, &argp->ffh, argp->fname, argp->flen,
419 &argp->tfh, argp->tname, argp->tlen);
420 fh_put(&argp->ffh);
421 fh_put(&argp->tfh);
422 return nfserr;
423}
424
425static __be32
426nfsd_proc_link(struct svc_rqst *rqstp)
427{
428 struct nfsd_linkargs *argp = rqstp->rq_argp;
429 __be32 nfserr;
430
431 dprintk("nfsd: LINK %s ->\n",
432 SVCFH_fmt(&argp->ffh));
433 dprintk("nfsd: %s %.*s\n",
434 SVCFH_fmt(&argp->tfh),
435 argp->tlen,
436 argp->tname);
437
438 nfserr = nfsd_link(rqstp, &argp->tfh, argp->tname, argp->tlen,
439 &argp->ffh);
440 fh_put(&argp->ffh);
441 fh_put(&argp->tfh);
442 return nfserr;
443}
444
445static __be32
446nfsd_proc_symlink(struct svc_rqst *rqstp)
447{
448 struct nfsd_symlinkargs *argp = rqstp->rq_argp;
449 struct svc_fh newfh;
450 __be32 nfserr;
451
452 if (argp->tlen > NFS_MAXPATHLEN)
453 return nfserr_nametoolong;
454
455 argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,
456 argp->tlen);
457 if (IS_ERR(argp->tname))
458 return nfserrno(PTR_ERR(argp->tname));
459
460 dprintk("nfsd: SYMLINK %s %.*s -> %.*s\n",
461 SVCFH_fmt(&argp->ffh), argp->flen, argp->fname,
462 argp->tlen, argp->tname);
463
464 fh_init(&newfh, NFS_FHSIZE);
465 nfserr = nfsd_symlink(rqstp, &argp->ffh, argp->fname, argp->flen,
466 argp->tname, &newfh);
467
468 fh_put(&argp->ffh);
469 fh_put(&newfh);
470 return nfserr;
471}
472
473
474
475
476
477static __be32
478nfsd_proc_mkdir(struct svc_rqst *rqstp)
479{
480 struct nfsd_createargs *argp = rqstp->rq_argp;
481 struct nfsd_diropres *resp = rqstp->rq_resp;
482 __be32 nfserr;
483
484 dprintk("nfsd: MKDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
485
486 if (resp->fh.fh_dentry) {
487 printk(KERN_WARNING
488 "nfsd_proc_mkdir: response already verified??\n");
489 }
490
491 argp->attrs.ia_valid &= ~ATTR_SIZE;
492 fh_init(&resp->fh, NFS_FHSIZE);
493 nfserr = nfsd_create(rqstp, &argp->fh, argp->name, argp->len,
494 &argp->attrs, S_IFDIR, 0, &resp->fh);
495 fh_put(&argp->fh);
496 return nfsd_return_dirop(nfserr, resp);
497}
498
499
500
501
502static __be32
503nfsd_proc_rmdir(struct svc_rqst *rqstp)
504{
505 struct nfsd_diropargs *argp = rqstp->rq_argp;
506 __be32 nfserr;
507
508 dprintk("nfsd: RMDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
509
510 nfserr = nfsd_unlink(rqstp, &argp->fh, S_IFDIR, argp->name, argp->len);
511 fh_put(&argp->fh);
512 return nfserr;
513}
514
515
516
517
518static __be32
519nfsd_proc_readdir(struct svc_rqst *rqstp)
520{
521 struct nfsd_readdirargs *argp = rqstp->rq_argp;
522 struct nfsd_readdirres *resp = rqstp->rq_resp;
523 int count;
524 __be32 nfserr;
525 loff_t offset;
526
527 dprintk("nfsd: READDIR %s %d bytes at %d\n",
528 SVCFH_fmt(&argp->fh),
529 argp->count, argp->cookie);
530
531
532 count = (argp->count >> 2) - 2;
533
534
535 count -= 2;
536 if (count < 0)
537 count = 0;
538
539 resp->buffer = argp->buffer;
540 resp->offset = NULL;
541 resp->buflen = count;
542 resp->common.err = nfs_ok;
543
544 offset = argp->cookie;
545 nfserr = nfsd_readdir(rqstp, &argp->fh, &offset,
546 &resp->common, nfssvc_encode_entry);
547
548 resp->count = resp->buffer - argp->buffer;
549 if (resp->offset)
550 *resp->offset = htonl(offset);
551
552 fh_put(&argp->fh);
553 return nfserr;
554}
555
556
557
558
559static __be32
560nfsd_proc_statfs(struct svc_rqst *rqstp)
561{
562 struct nfsd_fhandle *argp = rqstp->rq_argp;
563 struct nfsd_statfsres *resp = rqstp->rq_resp;
564 __be32 nfserr;
565
566 dprintk("nfsd: STATFS %s\n", SVCFH_fmt(&argp->fh));
567
568 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats,
569 NFSD_MAY_BYPASS_GSS_ON_ROOT);
570 fh_put(&argp->fh);
571 return nfserr;
572}
573
574
575
576
577
578struct nfsd_void { int dummy; };
579
580#define ST 1
581#define FH 8
582#define AT 18
583
584static const struct svc_procedure nfsd_procedures2[18] = {
585 [NFSPROC_NULL] = {
586 .pc_func = nfsd_proc_null,
587 .pc_decode = nfssvc_decode_void,
588 .pc_encode = nfssvc_encode_void,
589 .pc_argsize = sizeof(struct nfsd_void),
590 .pc_ressize = sizeof(struct nfsd_void),
591 .pc_cachetype = RC_NOCACHE,
592 .pc_xdrressize = ST,
593 },
594 [NFSPROC_GETATTR] = {
595 .pc_func = nfsd_proc_getattr,
596 .pc_decode = nfssvc_decode_fhandle,
597 .pc_encode = nfssvc_encode_attrstat,
598 .pc_release = nfssvc_release_fhandle,
599 .pc_argsize = sizeof(struct nfsd_fhandle),
600 .pc_ressize = sizeof(struct nfsd_attrstat),
601 .pc_cachetype = RC_NOCACHE,
602 .pc_xdrressize = ST+AT,
603 },
604 [NFSPROC_SETATTR] = {
605 .pc_func = nfsd_proc_setattr,
606 .pc_decode = nfssvc_decode_sattrargs,
607 .pc_encode = nfssvc_encode_attrstat,
608 .pc_release = nfssvc_release_fhandle,
609 .pc_argsize = sizeof(struct nfsd_sattrargs),
610 .pc_ressize = sizeof(struct nfsd_attrstat),
611 .pc_cachetype = RC_REPLBUFF,
612 .pc_xdrressize = ST+AT,
613 },
614 [NFSPROC_ROOT] = {
615 .pc_decode = nfssvc_decode_void,
616 .pc_encode = nfssvc_encode_void,
617 .pc_argsize = sizeof(struct nfsd_void),
618 .pc_ressize = sizeof(struct nfsd_void),
619 .pc_cachetype = RC_NOCACHE,
620 .pc_xdrressize = ST,
621 },
622 [NFSPROC_LOOKUP] = {
623 .pc_func = nfsd_proc_lookup,
624 .pc_decode = nfssvc_decode_diropargs,
625 .pc_encode = nfssvc_encode_diropres,
626 .pc_release = nfssvc_release_fhandle,
627 .pc_argsize = sizeof(struct nfsd_diropargs),
628 .pc_ressize = sizeof(struct nfsd_diropres),
629 .pc_cachetype = RC_NOCACHE,
630 .pc_xdrressize = ST+FH+AT,
631 },
632 [NFSPROC_READLINK] = {
633 .pc_func = nfsd_proc_readlink,
634 .pc_decode = nfssvc_decode_readlinkargs,
635 .pc_encode = nfssvc_encode_readlinkres,
636 .pc_argsize = sizeof(struct nfsd_readlinkargs),
637 .pc_ressize = sizeof(struct nfsd_readlinkres),
638 .pc_cachetype = RC_NOCACHE,
639 .pc_xdrressize = ST+1+NFS_MAXPATHLEN/4,
640 },
641 [NFSPROC_READ] = {
642 .pc_func = nfsd_proc_read,
643 .pc_decode = nfssvc_decode_readargs,
644 .pc_encode = nfssvc_encode_readres,
645 .pc_release = nfssvc_release_fhandle,
646 .pc_argsize = sizeof(struct nfsd_readargs),
647 .pc_ressize = sizeof(struct nfsd_readres),
648 .pc_cachetype = RC_NOCACHE,
649 .pc_xdrressize = ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4,
650 },
651 [NFSPROC_WRITECACHE] = {
652 .pc_decode = nfssvc_decode_void,
653 .pc_encode = nfssvc_encode_void,
654 .pc_argsize = sizeof(struct nfsd_void),
655 .pc_ressize = sizeof(struct nfsd_void),
656 .pc_cachetype = RC_NOCACHE,
657 .pc_xdrressize = ST,
658 },
659 [NFSPROC_WRITE] = {
660 .pc_func = nfsd_proc_write,
661 .pc_decode = nfssvc_decode_writeargs,
662 .pc_encode = nfssvc_encode_attrstat,
663 .pc_release = nfssvc_release_fhandle,
664 .pc_argsize = sizeof(struct nfsd_writeargs),
665 .pc_ressize = sizeof(struct nfsd_attrstat),
666 .pc_cachetype = RC_REPLBUFF,
667 .pc_xdrressize = ST+AT,
668 },
669 [NFSPROC_CREATE] = {
670 .pc_func = nfsd_proc_create,
671 .pc_decode = nfssvc_decode_createargs,
672 .pc_encode = nfssvc_encode_diropres,
673 .pc_release = nfssvc_release_fhandle,
674 .pc_argsize = sizeof(struct nfsd_createargs),
675 .pc_ressize = sizeof(struct nfsd_diropres),
676 .pc_cachetype = RC_REPLBUFF,
677 .pc_xdrressize = ST+FH+AT,
678 },
679 [NFSPROC_REMOVE] = {
680 .pc_func = nfsd_proc_remove,
681 .pc_decode = nfssvc_decode_diropargs,
682 .pc_encode = nfssvc_encode_void,
683 .pc_argsize = sizeof(struct nfsd_diropargs),
684 .pc_ressize = sizeof(struct nfsd_void),
685 .pc_cachetype = RC_REPLSTAT,
686 .pc_xdrressize = ST,
687 },
688 [NFSPROC_RENAME] = {
689 .pc_func = nfsd_proc_rename,
690 .pc_decode = nfssvc_decode_renameargs,
691 .pc_encode = nfssvc_encode_void,
692 .pc_argsize = sizeof(struct nfsd_renameargs),
693 .pc_ressize = sizeof(struct nfsd_void),
694 .pc_cachetype = RC_REPLSTAT,
695 .pc_xdrressize = ST,
696 },
697 [NFSPROC_LINK] = {
698 .pc_func = nfsd_proc_link,
699 .pc_decode = nfssvc_decode_linkargs,
700 .pc_encode = nfssvc_encode_void,
701 .pc_argsize = sizeof(struct nfsd_linkargs),
702 .pc_ressize = sizeof(struct nfsd_void),
703 .pc_cachetype = RC_REPLSTAT,
704 .pc_xdrressize = ST,
705 },
706 [NFSPROC_SYMLINK] = {
707 .pc_func = nfsd_proc_symlink,
708 .pc_decode = nfssvc_decode_symlinkargs,
709 .pc_encode = nfssvc_encode_void,
710 .pc_argsize = sizeof(struct nfsd_symlinkargs),
711 .pc_ressize = sizeof(struct nfsd_void),
712 .pc_cachetype = RC_REPLSTAT,
713 .pc_xdrressize = ST,
714 },
715 [NFSPROC_MKDIR] = {
716 .pc_func = nfsd_proc_mkdir,
717 .pc_decode = nfssvc_decode_createargs,
718 .pc_encode = nfssvc_encode_diropres,
719 .pc_release = nfssvc_release_fhandle,
720 .pc_argsize = sizeof(struct nfsd_createargs),
721 .pc_ressize = sizeof(struct nfsd_diropres),
722 .pc_cachetype = RC_REPLBUFF,
723 .pc_xdrressize = ST+FH+AT,
724 },
725 [NFSPROC_RMDIR] = {
726 .pc_func = nfsd_proc_rmdir,
727 .pc_decode = nfssvc_decode_diropargs,
728 .pc_encode = nfssvc_encode_void,
729 .pc_argsize = sizeof(struct nfsd_diropargs),
730 .pc_ressize = sizeof(struct nfsd_void),
731 .pc_cachetype = RC_REPLSTAT,
732 .pc_xdrressize = ST,
733 },
734 [NFSPROC_READDIR] = {
735 .pc_func = nfsd_proc_readdir,
736 .pc_decode = nfssvc_decode_readdirargs,
737 .pc_encode = nfssvc_encode_readdirres,
738 .pc_argsize = sizeof(struct nfsd_readdirargs),
739 .pc_ressize = sizeof(struct nfsd_readdirres),
740 .pc_cachetype = RC_NOCACHE,
741 },
742 [NFSPROC_STATFS] = {
743 .pc_func = nfsd_proc_statfs,
744 .pc_decode = nfssvc_decode_fhandle,
745 .pc_encode = nfssvc_encode_statfsres,
746 .pc_argsize = sizeof(struct nfsd_fhandle),
747 .pc_ressize = sizeof(struct nfsd_statfsres),
748 .pc_cachetype = RC_NOCACHE,
749 .pc_xdrressize = ST+5,
750 },
751};
752
753
754static unsigned int nfsd_count2[ARRAY_SIZE(nfsd_procedures2)];
755const struct svc_version nfsd_version2 = {
756 .vs_vers = 2,
757 .vs_nproc = 18,
758 .vs_proc = nfsd_procedures2,
759 .vs_count = nfsd_count2,
760 .vs_dispatch = nfsd_dispatch,
761 .vs_xdrsize = NFS2_SVC_XDRSIZE,
762};
763
764
765
766
767__be32
768nfserrno (int errno)
769{
770 static struct {
771 __be32 nfserr;
772 int syserr;
773 } nfs_errtbl[] = {
774 { nfs_ok, 0 },
775 { nfserr_perm, -EPERM },
776 { nfserr_noent, -ENOENT },
777 { nfserr_io, -EIO },
778 { nfserr_nxio, -ENXIO },
779 { nfserr_fbig, -E2BIG },
780 { nfserr_acces, -EACCES },
781 { nfserr_exist, -EEXIST },
782 { nfserr_xdev, -EXDEV },
783 { nfserr_mlink, -EMLINK },
784 { nfserr_nodev, -ENODEV },
785 { nfserr_notdir, -ENOTDIR },
786 { nfserr_isdir, -EISDIR },
787 { nfserr_inval, -EINVAL },
788 { nfserr_fbig, -EFBIG },
789 { nfserr_nospc, -ENOSPC },
790 { nfserr_rofs, -EROFS },
791 { nfserr_mlink, -EMLINK },
792 { nfserr_nametoolong, -ENAMETOOLONG },
793 { nfserr_notempty, -ENOTEMPTY },
794#ifdef EDQUOT
795 { nfserr_dquot, -EDQUOT },
796#endif
797 { nfserr_stale, -ESTALE },
798 { nfserr_jukebox, -ETIMEDOUT },
799 { nfserr_jukebox, -ERESTARTSYS },
800 { nfserr_jukebox, -EAGAIN },
801 { nfserr_jukebox, -EWOULDBLOCK },
802 { nfserr_jukebox, -ENOMEM },
803 { nfserr_io, -ETXTBSY },
804 { nfserr_notsupp, -EOPNOTSUPP },
805 { nfserr_toosmall, -ETOOSMALL },
806 { nfserr_serverfault, -ESERVERFAULT },
807 { nfserr_serverfault, -ENFILE },
808 { nfserr_io, -EUCLEAN },
809 { nfserr_perm, -ENOKEY },
810 };
811 int i;
812
813 for (i = 0; i < ARRAY_SIZE(nfs_errtbl); i++) {
814 if (nfs_errtbl[i].syserr == errno)
815 return nfs_errtbl[i].nfserr;
816 }
817 WARN_ONCE(1, "nfsd: non-standard errno: %d\n", errno);
818 return nfserr_io;
819}
820
821