2 * Process version 2 NFS requests.
7 #include <linux/namei.h>
13 typedef struct svc_rqst svc_rqst;
14 typedef struct svc_buf svc_buf;
16 #define NFSDDBG_FACILITY NFSDDBG_PROC
20 nfsd_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
26 nfsd_return_attrs(__be32 err, struct nfsd_attrstat *resp)
29 return fh_getattr(&resp->fh, &resp->stat);
32 nfsd_return_dirop(__be32 err, struct nfsd_diropres *resp)
35 return fh_getattr(&resp->fh, &resp->stat);
38 * Get a file's attributes
39 * N.B. After this call resp->fh needs an fh_put
42 nfsd_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
43 struct nfsd_attrstat *resp)
46 dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
48 fh_copy(&resp->fh, &argp->fh);
49 nfserr = fh_verify(rqstp, &resp->fh, 0,
50 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
51 return nfsd_return_attrs(nfserr, resp);
55 * Set a file's attributes
56 * N.B. After this call resp->fh needs an fh_put
59 nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
60 struct nfsd_attrstat *resp)
62 struct iattr *iap = &argp->attrs;
66 dprintk("nfsd: SETATTR %s, valid=%x, size=%ld\n",
68 argp->attrs.ia_valid, (long) argp->attrs.ia_size);
70 fhp = fh_copy(&resp->fh, &argp->fh);
73 * NFSv2 does not differentiate between "set-[ac]time-to-now"
74 * which only requires access, and "set-[ac]time-to-X" which
76 * So if it looks like it might be "set both to the same time which
77 * is close to now", and if setattr_prepare fails, then we
78 * convert to "set to now" instead of "set to explicit time"
80 * We only call setattr_prepare as the last test as technically
81 * it is not an interface that we should be using.
83 #define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
84 #define MAX_TOUCH_TIME_ERROR (30*60)
85 if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET &&
86 iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec) {
90 * Now just make sure time is in the right ballpark.
91 * Solaris, at least, doesn't seem to care what the time
92 * request is. We require it be within 30 minutes of now.
94 time_t delta = iap->ia_atime.tv_sec - get_seconds();
96 nfserr = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP);
102 if (delta < MAX_TOUCH_TIME_ERROR &&
103 setattr_prepare(fhp->fh_dentry, iap) != 0) {
105 * Turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME.
106 * This will cause notify_change to set these times
109 iap->ia_valid &= ~BOTH_TIME_SET;
113 nfserr = nfsd_setattr(rqstp, fhp, iap, 0, (time_t)0);
115 return nfsd_return_attrs(nfserr, resp);
119 * Look up a path name component
120 * Note: the dentry in the resp->fh may be negative if the file
122 * N.B. After this call resp->fh needs an fh_put
125 nfsd_proc_lookup(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
126 struct nfsd_diropres *resp)
130 dprintk("nfsd: LOOKUP %s %.*s\n",
131 SVCFH_fmt(&argp->fh), argp->len, argp->name);
133 fh_init(&resp->fh, NFS_FHSIZE);
134 nfserr = nfsd_lookup(rqstp, &argp->fh, argp->name, argp->len,
138 return nfsd_return_dirop(nfserr, resp);
145 nfsd_proc_readlink(struct svc_rqst *rqstp, struct nfsd_readlinkargs *argp,
146 struct nfsd_readlinkres *resp)
150 dprintk("nfsd: READLINK %s\n", SVCFH_fmt(&argp->fh));
152 /* Read the symlink. */
153 resp->len = NFS_MAXPATHLEN;
154 nfserr = nfsd_readlink(rqstp, &argp->fh, argp->buffer, &resp->len);
161 * Read a portion of a file.
162 * N.B. After this call resp->fh needs an fh_put
165 nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
166 struct nfsd_readres *resp)
170 dprintk("nfsd: READ %s %d bytes at %d\n",
171 SVCFH_fmt(&argp->fh),
172 argp->count, argp->offset);
174 /* Obtain buffer pointer for payload. 19 is 1 word for
175 * status, 17 words for fattr, and 1 word for the byte count.
178 if (NFSSVC_MAXBLKSIZE_V2 < argp->count) {
179 char buf[RPC_MAX_ADDRBUFLEN];
181 "oversized read request from %s (%d bytes)\n",
182 svc_print_addr(rqstp, buf, sizeof(buf)),
184 argp->count = NFSSVC_MAXBLKSIZE_V2;
186 svc_reserve_auth(rqstp, (19<<2) + argp->count + 4);
188 resp->count = argp->count;
189 nfserr = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh),
191 rqstp->rq_vec, argp->vlen,
194 if (nfserr) return nfserr;
195 return fh_getattr(&resp->fh, &resp->stat);
199 * Write data to a file
200 * N.B. After this call resp->fh needs an fh_put
203 nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp,
204 struct nfsd_attrstat *resp)
208 unsigned long cnt = argp->len;
210 dprintk("nfsd: WRITE %s %d bytes at %d\n",
211 SVCFH_fmt(&argp->fh),
212 argp->len, argp->offset);
214 nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh), NULL,
216 rqstp->rq_vec, argp->vlen,
219 return nfsd_return_attrs(nfserr, resp);
223 * CREATE processing is complicated. The keyword here is `overloaded.'
224 * The parent directory is kept locked between the check for existence
225 * and the actual create() call in compliance with VFS protocols.
226 * N.B. After this call _both_ argp->fh and resp->fh need an fh_put
229 nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
230 struct nfsd_diropres *resp)
232 svc_fh *dirfhp = &argp->fh;
233 svc_fh *newfhp = &resp->fh;
234 struct iattr *attr = &argp->attrs;
236 struct dentry *dchild;
240 dev_t rdev = 0, wanted = new_decode_dev(attr->ia_size);
242 dprintk("nfsd: CREATE %s %.*s\n",
243 SVCFH_fmt(dirfhp), argp->len, argp->name);
245 /* First verify the parent file handle */
246 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_EXEC);
248 goto done; /* must fh_put dirfhp even on error */
250 /* Check for NFSD_MAY_WRITE in nfsd_create if necessary */
252 nfserr = nfserr_exist;
253 if (isdotent(argp->name, argp->len))
255 hosterr = fh_want_write(dirfhp);
257 nfserr = nfserrno(hosterr);
261 fh_lock_nested(dirfhp, I_MUTEX_PARENT);
262 dchild = lookup_one_len(argp->name, dirfhp->fh_dentry, argp->len);
263 if (IS_ERR(dchild)) {
264 nfserr = nfserrno(PTR_ERR(dchild));
267 fh_init(newfhp, NFS_FHSIZE);
268 nfserr = fh_compose(newfhp, dirfhp->fh_export, dchild, dirfhp);
269 if (!nfserr && d_really_is_negative(dchild))
270 nfserr = nfserr_noent;
273 if (nfserr != nfserr_noent)
276 * If the new file handle wasn't verified, we can't tell
277 * whether the file exists or not. Time to bail ...
279 nfserr = nfserr_acces;
280 if (!newfhp->fh_dentry) {
282 "nfsd_proc_create: file handle not verified\n");
287 inode = d_inode(newfhp->fh_dentry);
289 /* Unfudge the mode bits */
290 if (attr->ia_valid & ATTR_MODE) {
291 type = attr->ia_mode & S_IFMT;
292 mode = attr->ia_mode & ~S_IFMT;
294 /* no type, so if target exists, assume same as that,
295 * else assume a file */
297 type = inode->i_mode & S_IFMT;
301 /* reserve rdev for later checking */
302 rdev = inode->i_rdev;
303 attr->ia_valid |= ATTR_SIZE;
307 /* this is probably a permission check..
308 * at least IRIX implements perm checking on
309 * echo thing > device-special-file-or-pipe
310 * by doing a CREATE with type==0
312 nfserr = nfsd_permission(rqstp,
315 NFSD_MAY_WRITE|NFSD_MAY_LOCAL_ACCESS);
316 if (nfserr && nfserr != nfserr_rofs)
323 type = inode->i_mode & S_IFMT;
324 mode = inode->i_mode & ~S_IFMT;
330 attr->ia_valid |= ATTR_MODE;
331 attr->ia_mode = mode;
333 /* Special treatment for non-regular files according to the
334 * gospel of sun micro
336 if (type != S_IFREG) {
337 if (type != S_IFBLK && type != S_IFCHR) {
339 } else if (type == S_IFCHR && !(attr->ia_valid & ATTR_SIZE)) {
340 /* If you think you've seen the worst, grok this. */
343 /* Okay, char or block special */
348 /* we've used the SIZE information, so discard it */
349 attr->ia_valid &= ~ATTR_SIZE;
351 /* Make sure the type and device matches */
352 nfserr = nfserr_exist;
353 if (inode && type != (inode->i_mode & S_IFMT))
359 /* File doesn't exist. Create it and set attrs */
360 nfserr = nfsd_create_locked(rqstp, dirfhp, argp->name,
361 argp->len, attr, type, rdev, newfhp);
362 } else if (type == S_IFREG) {
363 dprintk("nfsd: existing %s, valid=%x, size=%ld\n",
364 argp->name, attr->ia_valid, (long) attr->ia_size);
365 /* File already exists. We ignore all attributes except
366 * size, so that creat() behaves exactly like
367 * open(..., O_CREAT|O_TRUNC|O_WRONLY).
369 attr->ia_valid &= ATTR_SIZE;
371 nfserr = nfsd_setattr(rqstp, newfhp, attr, 0, (time_t)0);
375 /* We don't really need to unlock, as fh_put does it. */
377 fh_drop_write(dirfhp);
380 return nfsd_return_dirop(nfserr, resp);
384 nfsd_proc_remove(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
389 dprintk("nfsd: REMOVE %s %.*s\n", SVCFH_fmt(&argp->fh),
390 argp->len, argp->name);
392 /* Unlink. -SIFDIR means file must not be a directory */
393 nfserr = nfsd_unlink(rqstp, &argp->fh, -S_IFDIR, argp->name, argp->len);
399 nfsd_proc_rename(struct svc_rqst *rqstp, struct nfsd_renameargs *argp,
404 dprintk("nfsd: RENAME %s %.*s -> \n",
405 SVCFH_fmt(&argp->ffh), argp->flen, argp->fname);
406 dprintk("nfsd: -> %s %.*s\n",
407 SVCFH_fmt(&argp->tfh), argp->tlen, argp->tname);
409 nfserr = nfsd_rename(rqstp, &argp->ffh, argp->fname, argp->flen,
410 &argp->tfh, argp->tname, argp->tlen);
417 nfsd_proc_link(struct svc_rqst *rqstp, struct nfsd_linkargs *argp,
422 dprintk("nfsd: LINK %s ->\n",
423 SVCFH_fmt(&argp->ffh));
424 dprintk("nfsd: %s %.*s\n",
425 SVCFH_fmt(&argp->tfh),
429 nfserr = nfsd_link(rqstp, &argp->tfh, argp->tname, argp->tlen,
437 nfsd_proc_symlink(struct svc_rqst *rqstp, struct nfsd_symlinkargs *argp,
443 dprintk("nfsd: SYMLINK %s %.*s -> %.*s\n",
444 SVCFH_fmt(&argp->ffh), argp->flen, argp->fname,
445 argp->tlen, argp->tname);
447 fh_init(&newfh, NFS_FHSIZE);
449 * Crazy hack: the request fits in a page, and already-decoded
450 * attributes follow argp->tname, so it's safe to just write a
451 * null to ensure it's null-terminated:
453 argp->tname[argp->tlen] = '\0';
454 nfserr = nfsd_symlink(rqstp, &argp->ffh, argp->fname, argp->flen,
455 argp->tname, &newfh);
463 * Make directory. This operation is not idempotent.
464 * N.B. After this call resp->fh needs an fh_put
467 nfsd_proc_mkdir(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
468 struct nfsd_diropres *resp)
472 dprintk("nfsd: MKDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
474 if (resp->fh.fh_dentry) {
476 "nfsd_proc_mkdir: response already verified??\n");
479 argp->attrs.ia_valid &= ~ATTR_SIZE;
480 fh_init(&resp->fh, NFS_FHSIZE);
481 nfserr = nfsd_create(rqstp, &argp->fh, argp->name, argp->len,
482 &argp->attrs, S_IFDIR, 0, &resp->fh);
484 return nfsd_return_dirop(nfserr, resp);
491 nfsd_proc_rmdir(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
496 dprintk("nfsd: RMDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
498 nfserr = nfsd_unlink(rqstp, &argp->fh, S_IFDIR, argp->name, argp->len);
504 * Read a portion of a directory.
507 nfsd_proc_readdir(struct svc_rqst *rqstp, struct nfsd_readdirargs *argp,
508 struct nfsd_readdirres *resp)
514 dprintk("nfsd: READDIR %s %d bytes at %d\n",
515 SVCFH_fmt(&argp->fh),
516 argp->count, argp->cookie);
518 /* Shrink to the client read size */
519 count = (argp->count >> 2) - 2;
521 /* Make sure we've room for the NULL ptr & eof flag */
526 resp->buffer = argp->buffer;
528 resp->buflen = count;
529 resp->common.err = nfs_ok;
530 /* Read directory and encode entries on the fly */
531 offset = argp->cookie;
532 nfserr = nfsd_readdir(rqstp, &argp->fh, &offset,
533 &resp->common, nfssvc_encode_entry);
535 resp->count = resp->buffer - argp->buffer;
537 *resp->offset = htonl(offset);
544 * Get file system info
547 nfsd_proc_statfs(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
548 struct nfsd_statfsres *resp)
552 dprintk("nfsd: STATFS %s\n", SVCFH_fmt(&argp->fh));
554 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats,
555 NFSD_MAY_BYPASS_GSS_ON_ROOT);
561 * NFSv2 Server procedures.
562 * Only the results of non-idempotent operations are cached.
564 struct nfsd_void { int dummy; };
566 #define ST 1 /* status */
567 #define FH 8 /* filehandle */
568 #define AT 18 /* attributes */
570 static struct svc_procedure nfsd_procedures2[18] = {
572 .pc_func = (svc_procfunc) nfsd_proc_null,
573 .pc_decode = (kxdrproc_t) nfssvc_decode_void,
574 .pc_encode = (kxdrproc_t) nfssvc_encode_void,
575 .pc_argsize = sizeof(struct nfsd_void),
576 .pc_ressize = sizeof(struct nfsd_void),
577 .pc_cachetype = RC_NOCACHE,
580 [NFSPROC_GETATTR] = {
581 .pc_func = (svc_procfunc) nfsd_proc_getattr,
582 .pc_decode = (kxdrproc_t) nfssvc_decode_fhandle,
583 .pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
584 .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
585 .pc_argsize = sizeof(struct nfsd_fhandle),
586 .pc_ressize = sizeof(struct nfsd_attrstat),
587 .pc_cachetype = RC_NOCACHE,
588 .pc_xdrressize = ST+AT,
590 [NFSPROC_SETATTR] = {
591 .pc_func = (svc_procfunc) nfsd_proc_setattr,
592 .pc_decode = (kxdrproc_t) nfssvc_decode_sattrargs,
593 .pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
594 .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
595 .pc_argsize = sizeof(struct nfsd_sattrargs),
596 .pc_ressize = sizeof(struct nfsd_attrstat),
597 .pc_cachetype = RC_REPLBUFF,
598 .pc_xdrressize = ST+AT,
601 .pc_decode = (kxdrproc_t) nfssvc_decode_void,
602 .pc_encode = (kxdrproc_t) nfssvc_encode_void,
603 .pc_argsize = sizeof(struct nfsd_void),
604 .pc_ressize = sizeof(struct nfsd_void),
605 .pc_cachetype = RC_NOCACHE,
609 .pc_func = (svc_procfunc) nfsd_proc_lookup,
610 .pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
611 .pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
612 .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
613 .pc_argsize = sizeof(struct nfsd_diropargs),
614 .pc_ressize = sizeof(struct nfsd_diropres),
615 .pc_cachetype = RC_NOCACHE,
616 .pc_xdrressize = ST+FH+AT,
618 [NFSPROC_READLINK] = {
619 .pc_func = (svc_procfunc) nfsd_proc_readlink,
620 .pc_decode = (kxdrproc_t) nfssvc_decode_readlinkargs,
621 .pc_encode = (kxdrproc_t) nfssvc_encode_readlinkres,
622 .pc_argsize = sizeof(struct nfsd_readlinkargs),
623 .pc_ressize = sizeof(struct nfsd_readlinkres),
624 .pc_cachetype = RC_NOCACHE,
625 .pc_xdrressize = ST+1+NFS_MAXPATHLEN/4,
628 .pc_func = (svc_procfunc) nfsd_proc_read,
629 .pc_decode = (kxdrproc_t) nfssvc_decode_readargs,
630 .pc_encode = (kxdrproc_t) nfssvc_encode_readres,
631 .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
632 .pc_argsize = sizeof(struct nfsd_readargs),
633 .pc_ressize = sizeof(struct nfsd_readres),
634 .pc_cachetype = RC_NOCACHE,
635 .pc_xdrressize = ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4,
637 [NFSPROC_WRITECACHE] = {
638 .pc_decode = (kxdrproc_t) nfssvc_decode_void,
639 .pc_encode = (kxdrproc_t) nfssvc_encode_void,
640 .pc_argsize = sizeof(struct nfsd_void),
641 .pc_ressize = sizeof(struct nfsd_void),
642 .pc_cachetype = RC_NOCACHE,
646 .pc_func = (svc_procfunc) nfsd_proc_write,
647 .pc_decode = (kxdrproc_t) nfssvc_decode_writeargs,
648 .pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
649 .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
650 .pc_argsize = sizeof(struct nfsd_writeargs),
651 .pc_ressize = sizeof(struct nfsd_attrstat),
652 .pc_cachetype = RC_REPLBUFF,
653 .pc_xdrressize = ST+AT,
656 .pc_func = (svc_procfunc) nfsd_proc_create,
657 .pc_decode = (kxdrproc_t) nfssvc_decode_createargs,
658 .pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
659 .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
660 .pc_argsize = sizeof(struct nfsd_createargs),
661 .pc_ressize = sizeof(struct nfsd_diropres),
662 .pc_cachetype = RC_REPLBUFF,
663 .pc_xdrressize = ST+FH+AT,
666 .pc_func = (svc_procfunc) nfsd_proc_remove,
667 .pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
668 .pc_encode = (kxdrproc_t) nfssvc_encode_void,
669 .pc_argsize = sizeof(struct nfsd_diropargs),
670 .pc_ressize = sizeof(struct nfsd_void),
671 .pc_cachetype = RC_REPLSTAT,
675 .pc_func = (svc_procfunc) nfsd_proc_rename,
676 .pc_decode = (kxdrproc_t) nfssvc_decode_renameargs,
677 .pc_encode = (kxdrproc_t) nfssvc_encode_void,
678 .pc_argsize = sizeof(struct nfsd_renameargs),
679 .pc_ressize = sizeof(struct nfsd_void),
680 .pc_cachetype = RC_REPLSTAT,
684 .pc_func = (svc_procfunc) nfsd_proc_link,
685 .pc_decode = (kxdrproc_t) nfssvc_decode_linkargs,
686 .pc_encode = (kxdrproc_t) nfssvc_encode_void,
687 .pc_argsize = sizeof(struct nfsd_linkargs),
688 .pc_ressize = sizeof(struct nfsd_void),
689 .pc_cachetype = RC_REPLSTAT,
692 [NFSPROC_SYMLINK] = {
693 .pc_func = (svc_procfunc) nfsd_proc_symlink,
694 .pc_decode = (kxdrproc_t) nfssvc_decode_symlinkargs,
695 .pc_encode = (kxdrproc_t) nfssvc_encode_void,
696 .pc_argsize = sizeof(struct nfsd_symlinkargs),
697 .pc_ressize = sizeof(struct nfsd_void),
698 .pc_cachetype = RC_REPLSTAT,
702 .pc_func = (svc_procfunc) nfsd_proc_mkdir,
703 .pc_decode = (kxdrproc_t) nfssvc_decode_createargs,
704 .pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
705 .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
706 .pc_argsize = sizeof(struct nfsd_createargs),
707 .pc_ressize = sizeof(struct nfsd_diropres),
708 .pc_cachetype = RC_REPLBUFF,
709 .pc_xdrressize = ST+FH+AT,
712 .pc_func = (svc_procfunc) nfsd_proc_rmdir,
713 .pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
714 .pc_encode = (kxdrproc_t) nfssvc_encode_void,
715 .pc_argsize = sizeof(struct nfsd_diropargs),
716 .pc_ressize = sizeof(struct nfsd_void),
717 .pc_cachetype = RC_REPLSTAT,
720 [NFSPROC_READDIR] = {
721 .pc_func = (svc_procfunc) nfsd_proc_readdir,
722 .pc_decode = (kxdrproc_t) nfssvc_decode_readdirargs,
723 .pc_encode = (kxdrproc_t) nfssvc_encode_readdirres,
724 .pc_argsize = sizeof(struct nfsd_readdirargs),
725 .pc_ressize = sizeof(struct nfsd_readdirres),
726 .pc_cachetype = RC_NOCACHE,
729 .pc_func = (svc_procfunc) nfsd_proc_statfs,
730 .pc_decode = (kxdrproc_t) nfssvc_decode_fhandle,
731 .pc_encode = (kxdrproc_t) nfssvc_encode_statfsres,
732 .pc_argsize = sizeof(struct nfsd_fhandle),
733 .pc_ressize = sizeof(struct nfsd_statfsres),
734 .pc_cachetype = RC_NOCACHE,
735 .pc_xdrressize = ST+5,
740 struct svc_version nfsd_version2 = {
743 .vs_proc = nfsd_procedures2,
744 .vs_dispatch = nfsd_dispatch,
745 .vs_xdrsize = NFS2_SVC_XDRSIZE,
749 * Map errnos to NFS errnos.
759 { nfserr_perm, -EPERM },
760 { nfserr_noent, -ENOENT },
762 { nfserr_nxio, -ENXIO },
763 { nfserr_fbig, -E2BIG },
764 { nfserr_acces, -EACCES },
765 { nfserr_exist, -EEXIST },
766 { nfserr_xdev, -EXDEV },
767 { nfserr_mlink, -EMLINK },
768 { nfserr_nodev, -ENODEV },
769 { nfserr_notdir, -ENOTDIR },
770 { nfserr_isdir, -EISDIR },
771 { nfserr_inval, -EINVAL },
772 { nfserr_fbig, -EFBIG },
773 { nfserr_nospc, -ENOSPC },
774 { nfserr_rofs, -EROFS },
775 { nfserr_mlink, -EMLINK },
776 { nfserr_nametoolong, -ENAMETOOLONG },
777 { nfserr_notempty, -ENOTEMPTY },
779 { nfserr_dquot, -EDQUOT },
781 { nfserr_stale, -ESTALE },
782 { nfserr_jukebox, -ETIMEDOUT },
783 { nfserr_jukebox, -ERESTARTSYS },
784 { nfserr_jukebox, -EAGAIN },
785 { nfserr_jukebox, -EWOULDBLOCK },
786 { nfserr_jukebox, -ENOMEM },
787 { nfserr_io, -ETXTBSY },
788 { nfserr_notsupp, -EOPNOTSUPP },
789 { nfserr_toosmall, -ETOOSMALL },
790 { nfserr_serverfault, -ESERVERFAULT },
791 { nfserr_serverfault, -ENFILE },
792 { nfserr_io, -EUCLEAN },
796 for (i = 0; i < ARRAY_SIZE(nfs_errtbl); i++) {
797 if (nfs_errtbl[i].syserr == errno)
798 return nfs_errtbl[i].nfserr;
800 WARN_ONCE(1, "nfsd: non-standard errno: %d\n", errno);