1
2
3
4
5
6
7
8#include <linux/namei.h>
9
10#include "cache.h"
11#include "xdr.h"
12#include "vfs.h"
13
14#define NFSDDBG_FACILITY NFSDDBG_PROC
15
16static __be32
17nfsd_proc_null(struct svc_rqst *rqstp)
18{
19 return rpc_success;
20}
21
22
23
24
25
26static __be32
27nfsd_proc_getattr(struct svc_rqst *rqstp)
28{
29 struct nfsd_fhandle *argp = rqstp->rq_argp;
30 struct nfsd_attrstat *resp = rqstp->rq_resp;
31
32 dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
33
34 fh_copy(&resp->fh, &argp->fh);
35 resp->status = fh_verify(rqstp, &resp->fh, 0,
36 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
37 if (resp->status != nfs_ok)
38 goto out;
39 resp->status = fh_getattr(&resp->fh, &resp->stat);
40out:
41 return rpc_success;
42}
43
44
45
46
47
48static __be32
49nfsd_proc_setattr(struct svc_rqst *rqstp)
50{
51 struct nfsd_sattrargs *argp = rqstp->rq_argp;
52 struct nfsd_attrstat *resp = rqstp->rq_resp;
53 struct iattr *iap = &argp->attrs;
54 struct svc_fh *fhp;
55
56 dprintk("nfsd: SETATTR %s, valid=%x, size=%ld\n",
57 SVCFH_fmt(&argp->fh),
58 argp->attrs.ia_valid, (long) argp->attrs.ia_size);
59
60 fhp = fh_copy(&resp->fh, &argp->fh);
61
62
63
64
65
66
67
68
69
70
71
72
73#define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
74#define MAX_TOUCH_TIME_ERROR (30*60)
75 if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET &&
76 iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec) {
77
78
79
80
81
82
83
84 time64_t delta = iap->ia_atime.tv_sec - ktime_get_real_seconds();
85
86 resp->status = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP);
87 if (resp->status != nfs_ok)
88 goto out;
89
90 if (delta < 0)
91 delta = -delta;
92 if (delta < MAX_TOUCH_TIME_ERROR &&
93 setattr_prepare(&init_user_ns, fhp->fh_dentry, iap) != 0) {
94
95
96
97
98
99 iap->ia_valid &= ~BOTH_TIME_SET;
100 }
101 }
102
103 resp->status = nfsd_setattr(rqstp, fhp, iap, 0, (time64_t)0);
104 if (resp->status != nfs_ok)
105 goto out;
106
107 resp->status = fh_getattr(&resp->fh, &resp->stat);
108out:
109 return rpc_success;
110}
111
112
113static __be32
114nfsd_proc_root(struct svc_rqst *rqstp)
115{
116 return rpc_success;
117}
118
119
120
121
122
123
124
125static __be32
126nfsd_proc_lookup(struct svc_rqst *rqstp)
127{
128 struct nfsd_diropargs *argp = rqstp->rq_argp;
129 struct nfsd_diropres *resp = rqstp->rq_resp;
130
131 dprintk("nfsd: LOOKUP %s %.*s\n",
132 SVCFH_fmt(&argp->fh), argp->len, argp->name);
133
134 fh_init(&resp->fh, NFS_FHSIZE);
135 resp->status = nfsd_lookup(rqstp, &argp->fh, argp->name, argp->len,
136 &resp->fh);
137 fh_put(&argp->fh);
138 if (resp->status != nfs_ok)
139 goto out;
140
141 resp->status = fh_getattr(&resp->fh, &resp->stat);
142out:
143 return rpc_success;
144}
145
146
147
148
149static __be32
150nfsd_proc_readlink(struct svc_rqst *rqstp)
151{
152 struct nfsd_fhandle *argp = rqstp->rq_argp;
153 struct nfsd_readlinkres *resp = rqstp->rq_resp;
154
155 dprintk("nfsd: READLINK %s\n", SVCFH_fmt(&argp->fh));
156
157
158 resp->len = NFS_MAXPATHLEN;
159 resp->page = *(rqstp->rq_next_page++);
160 resp->status = nfsd_readlink(rqstp, &argp->fh,
161 page_address(resp->page), &resp->len);
162
163 fh_put(&argp->fh);
164 return rpc_success;
165}
166
167
168
169
170
171static __be32
172nfsd_proc_read(struct svc_rqst *rqstp)
173{
174 struct nfsd_readargs *argp = rqstp->rq_argp;
175 struct nfsd_readres *resp = rqstp->rq_resp;
176 unsigned int len;
177 u32 eof;
178 int v;
179
180 dprintk("nfsd: READ %s %d bytes at %d\n",
181 SVCFH_fmt(&argp->fh),
182 argp->count, argp->offset);
183
184 argp->count = min_t(u32, argp->count, NFSSVC_MAXBLKSIZE_V2);
185
186 v = 0;
187 len = argp->count;
188 resp->pages = rqstp->rq_next_page;
189 while (len > 0) {
190 struct page *page = *(rqstp->rq_next_page++);
191
192 rqstp->rq_vec[v].iov_base = page_address(page);
193 rqstp->rq_vec[v].iov_len = min_t(unsigned int, len, PAGE_SIZE);
194 len -= rqstp->rq_vec[v].iov_len;
195 v++;
196 }
197
198
199
200
201 svc_reserve_auth(rqstp, (19<<2) + argp->count + 4);
202
203 resp->count = argp->count;
204 fh_copy(&resp->fh, &argp->fh);
205 resp->status = nfsd_read(rqstp, &resp->fh, argp->offset,
206 rqstp->rq_vec, v, &resp->count, &eof);
207 if (resp->status == nfs_ok)
208 resp->status = fh_getattr(&resp->fh, &resp->stat);
209 else if (resp->status == nfserr_jukebox)
210 return rpc_drop_reply;
211 return rpc_success;
212}
213
214
215static __be32
216nfsd_proc_writecache(struct svc_rqst *rqstp)
217{
218 return rpc_success;
219}
220
221
222
223
224
225static __be32
226nfsd_proc_write(struct svc_rqst *rqstp)
227{
228 struct nfsd_writeargs *argp = rqstp->rq_argp;
229 struct nfsd_attrstat *resp = rqstp->rq_resp;
230 unsigned long cnt = argp->len;
231 unsigned int nvecs;
232
233 dprintk("nfsd: WRITE %s %d bytes at %d\n",
234 SVCFH_fmt(&argp->fh),
235 argp->len, argp->offset);
236
237 nvecs = svc_fill_write_vector(rqstp, &argp->payload);
238
239 resp->status = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh),
240 argp->offset, rqstp->rq_vec, nvecs,
241 &cnt, NFS_DATA_SYNC, NULL);
242 if (resp->status == nfs_ok)
243 resp->status = fh_getattr(&resp->fh, &resp->stat);
244 else if (resp->status == nfserr_jukebox)
245 return rpc_drop_reply;
246 return rpc_success;
247}
248
249
250
251
252
253
254
255static __be32
256nfsd_proc_create(struct svc_rqst *rqstp)
257{
258 struct nfsd_createargs *argp = rqstp->rq_argp;
259 struct nfsd_diropres *resp = rqstp->rq_resp;
260 svc_fh *dirfhp = &argp->fh;
261 svc_fh *newfhp = &resp->fh;
262 struct iattr *attr = &argp->attrs;
263 struct inode *inode;
264 struct dentry *dchild;
265 int type, mode;
266 int hosterr;
267 dev_t rdev = 0, wanted = new_decode_dev(attr->ia_size);
268
269 dprintk("nfsd: CREATE %s %.*s\n",
270 SVCFH_fmt(dirfhp), argp->len, argp->name);
271
272
273 resp->status = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_EXEC);
274 if (resp->status != nfs_ok)
275 goto done;
276
277
278
279 resp->status = nfserr_exist;
280 if (isdotent(argp->name, argp->len))
281 goto done;
282 hosterr = fh_want_write(dirfhp);
283 if (hosterr) {
284 resp->status = nfserrno(hosterr);
285 goto done;
286 }
287
288 fh_lock_nested(dirfhp, I_MUTEX_PARENT);
289 dchild = lookup_one_len(argp->name, dirfhp->fh_dentry, argp->len);
290 if (IS_ERR(dchild)) {
291 resp->status = nfserrno(PTR_ERR(dchild));
292 goto out_unlock;
293 }
294 fh_init(newfhp, NFS_FHSIZE);
295 resp->status = fh_compose(newfhp, dirfhp->fh_export, dchild, dirfhp);
296 if (!resp->status && d_really_is_negative(dchild))
297 resp->status = nfserr_noent;
298 dput(dchild);
299 if (resp->status) {
300 if (resp->status != nfserr_noent)
301 goto out_unlock;
302
303
304
305
306 resp->status = nfserr_acces;
307 if (!newfhp->fh_dentry) {
308 printk(KERN_WARNING
309 "nfsd_proc_create: file handle not verified\n");
310 goto out_unlock;
311 }
312 }
313
314 inode = d_inode(newfhp->fh_dentry);
315
316
317 if (attr->ia_valid & ATTR_MODE) {
318 type = attr->ia_mode & S_IFMT;
319 mode = attr->ia_mode & ~S_IFMT;
320 if (!type) {
321
322
323 if (inode) {
324 type = inode->i_mode & S_IFMT;
325 switch(type) {
326 case S_IFCHR:
327 case S_IFBLK:
328
329 rdev = inode->i_rdev;
330 attr->ia_valid |= ATTR_SIZE;
331
332 fallthrough;
333 case S_IFIFO:
334
335
336
337
338
339 resp->status = nfsd_permission(rqstp,
340 newfhp->fh_export,
341 newfhp->fh_dentry,
342 NFSD_MAY_WRITE|NFSD_MAY_LOCAL_ACCESS);
343 if (resp->status && resp->status != nfserr_rofs)
344 goto out_unlock;
345 }
346 } else
347 type = S_IFREG;
348 }
349 } else if (inode) {
350 type = inode->i_mode & S_IFMT;
351 mode = inode->i_mode & ~S_IFMT;
352 } else {
353 type = S_IFREG;
354 mode = 0;
355 }
356
357 attr->ia_valid |= ATTR_MODE;
358 attr->ia_mode = mode;
359
360
361
362
363 if (type != S_IFREG) {
364 if (type != S_IFBLK && type != S_IFCHR) {
365 rdev = 0;
366 } else if (type == S_IFCHR && !(attr->ia_valid & ATTR_SIZE)) {
367
368 type = S_IFIFO;
369 } else {
370
371 if (!rdev)
372 rdev = wanted;
373 }
374
375
376 attr->ia_valid &= ~ATTR_SIZE;
377
378
379 resp->status = nfserr_exist;
380 if (inode && inode_wrong_type(inode, type))
381 goto out_unlock;
382 }
383
384 resp->status = nfs_ok;
385 if (!inode) {
386
387 resp->status = nfsd_create_locked(rqstp, dirfhp, argp->name,
388 argp->len, attr, type, rdev,
389 newfhp);
390 } else if (type == S_IFREG) {
391 dprintk("nfsd: existing %s, valid=%x, size=%ld\n",
392 argp->name, attr->ia_valid, (long) attr->ia_size);
393
394
395
396
397 attr->ia_valid &= ATTR_SIZE;
398 if (attr->ia_valid)
399 resp->status = nfsd_setattr(rqstp, newfhp, attr, 0,
400 (time64_t)0);
401 }
402
403out_unlock:
404
405 fh_unlock(dirfhp);
406 fh_drop_write(dirfhp);
407done:
408 fh_put(dirfhp);
409 if (resp->status != nfs_ok)
410 goto out;
411 resp->status = fh_getattr(&resp->fh, &resp->stat);
412out:
413 return rpc_success;
414}
415
416static __be32
417nfsd_proc_remove(struct svc_rqst *rqstp)
418{
419 struct nfsd_diropargs *argp = rqstp->rq_argp;
420 struct nfsd_stat *resp = rqstp->rq_resp;
421
422 dprintk("nfsd: REMOVE %s %.*s\n", SVCFH_fmt(&argp->fh),
423 argp->len, argp->name);
424
425
426 resp->status = nfsd_unlink(rqstp, &argp->fh, -S_IFDIR,
427 argp->name, argp->len);
428 fh_put(&argp->fh);
429 return rpc_success;
430}
431
432static __be32
433nfsd_proc_rename(struct svc_rqst *rqstp)
434{
435 struct nfsd_renameargs *argp = rqstp->rq_argp;
436 struct nfsd_stat *resp = rqstp->rq_resp;
437
438 dprintk("nfsd: RENAME %s %.*s -> \n",
439 SVCFH_fmt(&argp->ffh), argp->flen, argp->fname);
440 dprintk("nfsd: -> %s %.*s\n",
441 SVCFH_fmt(&argp->tfh), argp->tlen, argp->tname);
442
443 resp->status = nfsd_rename(rqstp, &argp->ffh, argp->fname, argp->flen,
444 &argp->tfh, argp->tname, argp->tlen);
445 fh_put(&argp->ffh);
446 fh_put(&argp->tfh);
447 return rpc_success;
448}
449
450static __be32
451nfsd_proc_link(struct svc_rqst *rqstp)
452{
453 struct nfsd_linkargs *argp = rqstp->rq_argp;
454 struct nfsd_stat *resp = rqstp->rq_resp;
455
456 dprintk("nfsd: LINK %s ->\n",
457 SVCFH_fmt(&argp->ffh));
458 dprintk("nfsd: %s %.*s\n",
459 SVCFH_fmt(&argp->tfh),
460 argp->tlen,
461 argp->tname);
462
463 resp->status = nfsd_link(rqstp, &argp->tfh, argp->tname, argp->tlen,
464 &argp->ffh);
465 fh_put(&argp->ffh);
466 fh_put(&argp->tfh);
467 return rpc_success;
468}
469
470static __be32
471nfsd_proc_symlink(struct svc_rqst *rqstp)
472{
473 struct nfsd_symlinkargs *argp = rqstp->rq_argp;
474 struct nfsd_stat *resp = rqstp->rq_resp;
475 struct svc_fh newfh;
476
477 if (argp->tlen > NFS_MAXPATHLEN) {
478 resp->status = nfserr_nametoolong;
479 goto out;
480 }
481
482 argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,
483 page_address(rqstp->rq_arg.pages[0]),
484 argp->tlen);
485 if (IS_ERR(argp->tname)) {
486 resp->status = nfserrno(PTR_ERR(argp->tname));
487 goto out;
488 }
489
490 dprintk("nfsd: SYMLINK %s %.*s -> %.*s\n",
491 SVCFH_fmt(&argp->ffh), argp->flen, argp->fname,
492 argp->tlen, argp->tname);
493
494 fh_init(&newfh, NFS_FHSIZE);
495 resp->status = nfsd_symlink(rqstp, &argp->ffh, argp->fname, argp->flen,
496 argp->tname, &newfh);
497
498 kfree(argp->tname);
499 fh_put(&argp->ffh);
500 fh_put(&newfh);
501out:
502 return rpc_success;
503}
504
505
506
507
508
509static __be32
510nfsd_proc_mkdir(struct svc_rqst *rqstp)
511{
512 struct nfsd_createargs *argp = rqstp->rq_argp;
513 struct nfsd_diropres *resp = rqstp->rq_resp;
514
515 dprintk("nfsd: MKDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
516
517 if (resp->fh.fh_dentry) {
518 printk(KERN_WARNING
519 "nfsd_proc_mkdir: response already verified??\n");
520 }
521
522 argp->attrs.ia_valid &= ~ATTR_SIZE;
523 fh_init(&resp->fh, NFS_FHSIZE);
524 resp->status = nfsd_create(rqstp, &argp->fh, argp->name, argp->len,
525 &argp->attrs, S_IFDIR, 0, &resp->fh);
526 fh_put(&argp->fh);
527 if (resp->status != nfs_ok)
528 goto out;
529
530 resp->status = fh_getattr(&resp->fh, &resp->stat);
531out:
532 return rpc_success;
533}
534
535
536
537
538static __be32
539nfsd_proc_rmdir(struct svc_rqst *rqstp)
540{
541 struct nfsd_diropargs *argp = rqstp->rq_argp;
542 struct nfsd_stat *resp = rqstp->rq_resp;
543
544 dprintk("nfsd: RMDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
545
546 resp->status = nfsd_unlink(rqstp, &argp->fh, S_IFDIR,
547 argp->name, argp->len);
548 fh_put(&argp->fh);
549 return rpc_success;
550}
551
552static void nfsd_init_dirlist_pages(struct svc_rqst *rqstp,
553 struct nfsd_readdirres *resp,
554 u32 count)
555{
556 struct xdr_buf *buf = &resp->dirlist;
557 struct xdr_stream *xdr = &resp->xdr;
558
559 count = clamp(count, (u32)(XDR_UNIT * 2), svc_max_payload(rqstp));
560
561 memset(buf, 0, sizeof(*buf));
562
563
564 buf->buflen = count - XDR_UNIT * 2;
565 buf->pages = rqstp->rq_next_page;
566 rqstp->rq_next_page++;
567
568
569
570 xdr_set_scratch_buffer(xdr, NULL, 0);
571 xdr->buf = buf;
572 xdr->page_ptr = buf->pages;
573 xdr->iov = NULL;
574 xdr->p = page_address(*buf->pages);
575 xdr->end = (void *)xdr->p + min_t(u32, buf->buflen, PAGE_SIZE);
576 xdr->rqst = NULL;
577}
578
579
580
581
582static __be32
583nfsd_proc_readdir(struct svc_rqst *rqstp)
584{
585 struct nfsd_readdirargs *argp = rqstp->rq_argp;
586 struct nfsd_readdirres *resp = rqstp->rq_resp;
587 loff_t offset;
588
589 dprintk("nfsd: READDIR %s %d bytes at %d\n",
590 SVCFH_fmt(&argp->fh),
591 argp->count, argp->cookie);
592
593 nfsd_init_dirlist_pages(rqstp, resp, argp->count);
594
595 resp->common.err = nfs_ok;
596 resp->cookie_offset = 0;
597 offset = argp->cookie;
598 resp->status = nfsd_readdir(rqstp, &argp->fh, &offset,
599 &resp->common, nfssvc_encode_entry);
600 nfssvc_encode_nfscookie(resp, offset);
601
602 fh_put(&argp->fh);
603 return rpc_success;
604}
605
606
607
608
609static __be32
610nfsd_proc_statfs(struct svc_rqst *rqstp)
611{
612 struct nfsd_fhandle *argp = rqstp->rq_argp;
613 struct nfsd_statfsres *resp = rqstp->rq_resp;
614
615 dprintk("nfsd: STATFS %s\n", SVCFH_fmt(&argp->fh));
616
617 resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats,
618 NFSD_MAY_BYPASS_GSS_ON_ROOT);
619 fh_put(&argp->fh);
620 return rpc_success;
621}
622
623
624
625
626
627
628#define ST 1
629#define FH 8
630#define AT 18
631
632static const struct svc_procedure nfsd_procedures2[18] = {
633 [NFSPROC_NULL] = {
634 .pc_func = nfsd_proc_null,
635 .pc_decode = nfssvc_decode_voidarg,
636 .pc_encode = nfssvc_encode_voidres,
637 .pc_argsize = sizeof(struct nfsd_voidargs),
638 .pc_ressize = sizeof(struct nfsd_voidres),
639 .pc_cachetype = RC_NOCACHE,
640 .pc_xdrressize = 0,
641 .pc_name = "NULL",
642 },
643 [NFSPROC_GETATTR] = {
644 .pc_func = nfsd_proc_getattr,
645 .pc_decode = nfssvc_decode_fhandleargs,
646 .pc_encode = nfssvc_encode_attrstatres,
647 .pc_release = nfssvc_release_attrstat,
648 .pc_argsize = sizeof(struct nfsd_fhandle),
649 .pc_ressize = sizeof(struct nfsd_attrstat),
650 .pc_cachetype = RC_NOCACHE,
651 .pc_xdrressize = ST+AT,
652 .pc_name = "GETATTR",
653 },
654 [NFSPROC_SETATTR] = {
655 .pc_func = nfsd_proc_setattr,
656 .pc_decode = nfssvc_decode_sattrargs,
657 .pc_encode = nfssvc_encode_attrstatres,
658 .pc_release = nfssvc_release_attrstat,
659 .pc_argsize = sizeof(struct nfsd_sattrargs),
660 .pc_ressize = sizeof(struct nfsd_attrstat),
661 .pc_cachetype = RC_REPLBUFF,
662 .pc_xdrressize = ST+AT,
663 .pc_name = "SETATTR",
664 },
665 [NFSPROC_ROOT] = {
666 .pc_func = nfsd_proc_root,
667 .pc_decode = nfssvc_decode_voidarg,
668 .pc_encode = nfssvc_encode_voidres,
669 .pc_argsize = sizeof(struct nfsd_voidargs),
670 .pc_ressize = sizeof(struct nfsd_voidres),
671 .pc_cachetype = RC_NOCACHE,
672 .pc_xdrressize = 0,
673 .pc_name = "ROOT",
674 },
675 [NFSPROC_LOOKUP] = {
676 .pc_func = nfsd_proc_lookup,
677 .pc_decode = nfssvc_decode_diropargs,
678 .pc_encode = nfssvc_encode_diropres,
679 .pc_release = nfssvc_release_diropres,
680 .pc_argsize = sizeof(struct nfsd_diropargs),
681 .pc_ressize = sizeof(struct nfsd_diropres),
682 .pc_cachetype = RC_NOCACHE,
683 .pc_xdrressize = ST+FH+AT,
684 .pc_name = "LOOKUP",
685 },
686 [NFSPROC_READLINK] = {
687 .pc_func = nfsd_proc_readlink,
688 .pc_decode = nfssvc_decode_fhandleargs,
689 .pc_encode = nfssvc_encode_readlinkres,
690 .pc_argsize = sizeof(struct nfsd_fhandle),
691 .pc_ressize = sizeof(struct nfsd_readlinkres),
692 .pc_cachetype = RC_NOCACHE,
693 .pc_xdrressize = ST+1+NFS_MAXPATHLEN/4,
694 .pc_name = "READLINK",
695 },
696 [NFSPROC_READ] = {
697 .pc_func = nfsd_proc_read,
698 .pc_decode = nfssvc_decode_readargs,
699 .pc_encode = nfssvc_encode_readres,
700 .pc_release = nfssvc_release_readres,
701 .pc_argsize = sizeof(struct nfsd_readargs),
702 .pc_ressize = sizeof(struct nfsd_readres),
703 .pc_cachetype = RC_NOCACHE,
704 .pc_xdrressize = ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4,
705 .pc_name = "READ",
706 },
707 [NFSPROC_WRITECACHE] = {
708 .pc_func = nfsd_proc_writecache,
709 .pc_decode = nfssvc_decode_voidarg,
710 .pc_encode = nfssvc_encode_voidres,
711 .pc_argsize = sizeof(struct nfsd_voidargs),
712 .pc_ressize = sizeof(struct nfsd_voidres),
713 .pc_cachetype = RC_NOCACHE,
714 .pc_xdrressize = 0,
715 .pc_name = "WRITECACHE",
716 },
717 [NFSPROC_WRITE] = {
718 .pc_func = nfsd_proc_write,
719 .pc_decode = nfssvc_decode_writeargs,
720 .pc_encode = nfssvc_encode_attrstatres,
721 .pc_release = nfssvc_release_attrstat,
722 .pc_argsize = sizeof(struct nfsd_writeargs),
723 .pc_ressize = sizeof(struct nfsd_attrstat),
724 .pc_cachetype = RC_REPLBUFF,
725 .pc_xdrressize = ST+AT,
726 .pc_name = "WRITE",
727 },
728 [NFSPROC_CREATE] = {
729 .pc_func = nfsd_proc_create,
730 .pc_decode = nfssvc_decode_createargs,
731 .pc_encode = nfssvc_encode_diropres,
732 .pc_release = nfssvc_release_diropres,
733 .pc_argsize = sizeof(struct nfsd_createargs),
734 .pc_ressize = sizeof(struct nfsd_diropres),
735 .pc_cachetype = RC_REPLBUFF,
736 .pc_xdrressize = ST+FH+AT,
737 .pc_name = "CREATE",
738 },
739 [NFSPROC_REMOVE] = {
740 .pc_func = nfsd_proc_remove,
741 .pc_decode = nfssvc_decode_diropargs,
742 .pc_encode = nfssvc_encode_statres,
743 .pc_argsize = sizeof(struct nfsd_diropargs),
744 .pc_ressize = sizeof(struct nfsd_stat),
745 .pc_cachetype = RC_REPLSTAT,
746 .pc_xdrressize = ST,
747 .pc_name = "REMOVE",
748 },
749 [NFSPROC_RENAME] = {
750 .pc_func = nfsd_proc_rename,
751 .pc_decode = nfssvc_decode_renameargs,
752 .pc_encode = nfssvc_encode_statres,
753 .pc_argsize = sizeof(struct nfsd_renameargs),
754 .pc_ressize = sizeof(struct nfsd_stat),
755 .pc_cachetype = RC_REPLSTAT,
756 .pc_xdrressize = ST,
757 .pc_name = "RENAME",
758 },
759 [NFSPROC_LINK] = {
760 .pc_func = nfsd_proc_link,
761 .pc_decode = nfssvc_decode_linkargs,
762 .pc_encode = nfssvc_encode_statres,
763 .pc_argsize = sizeof(struct nfsd_linkargs),
764 .pc_ressize = sizeof(struct nfsd_stat),
765 .pc_cachetype = RC_REPLSTAT,
766 .pc_xdrressize = ST,
767 .pc_name = "LINK",
768 },
769 [NFSPROC_SYMLINK] = {
770 .pc_func = nfsd_proc_symlink,
771 .pc_decode = nfssvc_decode_symlinkargs,
772 .pc_encode = nfssvc_encode_statres,
773 .pc_argsize = sizeof(struct nfsd_symlinkargs),
774 .pc_ressize = sizeof(struct nfsd_stat),
775 .pc_cachetype = RC_REPLSTAT,
776 .pc_xdrressize = ST,
777 .pc_name = "SYMLINK",
778 },
779 [NFSPROC_MKDIR] = {
780 .pc_func = nfsd_proc_mkdir,
781 .pc_decode = nfssvc_decode_createargs,
782 .pc_encode = nfssvc_encode_diropres,
783 .pc_release = nfssvc_release_diropres,
784 .pc_argsize = sizeof(struct nfsd_createargs),
785 .pc_ressize = sizeof(struct nfsd_diropres),
786 .pc_cachetype = RC_REPLBUFF,
787 .pc_xdrressize = ST+FH+AT,
788 .pc_name = "MKDIR",
789 },
790 [NFSPROC_RMDIR] = {
791 .pc_func = nfsd_proc_rmdir,
792 .pc_decode = nfssvc_decode_diropargs,
793 .pc_encode = nfssvc_encode_statres,
794 .pc_argsize = sizeof(struct nfsd_diropargs),
795 .pc_ressize = sizeof(struct nfsd_stat),
796 .pc_cachetype = RC_REPLSTAT,
797 .pc_xdrressize = ST,
798 .pc_name = "RMDIR",
799 },
800 [NFSPROC_READDIR] = {
801 .pc_func = nfsd_proc_readdir,
802 .pc_decode = nfssvc_decode_readdirargs,
803 .pc_encode = nfssvc_encode_readdirres,
804 .pc_argsize = sizeof(struct nfsd_readdirargs),
805 .pc_ressize = sizeof(struct nfsd_readdirres),
806 .pc_cachetype = RC_NOCACHE,
807 .pc_name = "READDIR",
808 },
809 [NFSPROC_STATFS] = {
810 .pc_func = nfsd_proc_statfs,
811 .pc_decode = nfssvc_decode_fhandleargs,
812 .pc_encode = nfssvc_encode_statfsres,
813 .pc_argsize = sizeof(struct nfsd_fhandle),
814 .pc_ressize = sizeof(struct nfsd_statfsres),
815 .pc_cachetype = RC_NOCACHE,
816 .pc_xdrressize = ST+5,
817 .pc_name = "STATFS",
818 },
819};
820
821
822static unsigned int nfsd_count2[ARRAY_SIZE(nfsd_procedures2)];
823const struct svc_version nfsd_version2 = {
824 .vs_vers = 2,
825 .vs_nproc = 18,
826 .vs_proc = nfsd_procedures2,
827 .vs_count = nfsd_count2,
828 .vs_dispatch = nfsd_dispatch,
829 .vs_xdrsize = NFS2_SVC_XDRSIZE,
830};
831
832
833
834
835__be32
836nfserrno (int errno)
837{
838 static struct {
839 __be32 nfserr;
840 int syserr;
841 } nfs_errtbl[] = {
842 { nfs_ok, 0 },
843 { nfserr_perm, -EPERM },
844 { nfserr_noent, -ENOENT },
845 { nfserr_io, -EIO },
846 { nfserr_nxio, -ENXIO },
847 { nfserr_fbig, -E2BIG },
848 { nfserr_stale, -EBADF },
849 { nfserr_acces, -EACCES },
850 { nfserr_exist, -EEXIST },
851 { nfserr_xdev, -EXDEV },
852 { nfserr_mlink, -EMLINK },
853 { nfserr_nodev, -ENODEV },
854 { nfserr_notdir, -ENOTDIR },
855 { nfserr_isdir, -EISDIR },
856 { nfserr_inval, -EINVAL },
857 { nfserr_fbig, -EFBIG },
858 { nfserr_nospc, -ENOSPC },
859 { nfserr_rofs, -EROFS },
860 { nfserr_mlink, -EMLINK },
861 { nfserr_nametoolong, -ENAMETOOLONG },
862 { nfserr_notempty, -ENOTEMPTY },
863#ifdef EDQUOT
864 { nfserr_dquot, -EDQUOT },
865#endif
866 { nfserr_stale, -ESTALE },
867 { nfserr_jukebox, -ETIMEDOUT },
868 { nfserr_jukebox, -ERESTARTSYS },
869 { nfserr_jukebox, -EAGAIN },
870 { nfserr_jukebox, -EWOULDBLOCK },
871 { nfserr_jukebox, -ENOMEM },
872 { nfserr_io, -ETXTBSY },
873 { nfserr_notsupp, -EOPNOTSUPP },
874 { nfserr_toosmall, -ETOOSMALL },
875 { nfserr_serverfault, -ESERVERFAULT },
876 { nfserr_serverfault, -ENFILE },
877 { nfserr_io, -EREMOTEIO },
878 { nfserr_stale, -EOPENSTALE },
879 { nfserr_io, -EUCLEAN },
880 { nfserr_perm, -ENOKEY },
881 { nfserr_no_grace, -ENOGRACE},
882 };
883 int i;
884
885 for (i = 0; i < ARRAY_SIZE(nfs_errtbl); i++) {
886 if (nfs_errtbl[i].syserr == errno)
887 return nfs_errtbl[i].nfserr;
888 }
889 WARN_ONCE(1, "nfsd: non-standard errno: %d\n", errno);
890 return nfserr_io;
891}
892
893