2 * Process version 2 NFS requests.
4 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
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)
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)
44 struct nfsd_fhandle *argp = rqstp->rq_argp;
45 struct nfsd_attrstat *resp = rqstp->rq_resp;
47 dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
49 fh_copy(&resp->fh, &argp->fh);
50 nfserr = fh_verify(rqstp, &resp->fh, 0,
51 NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
52 return nfsd_return_attrs(nfserr, resp);
56 * Set a file's attributes
57 * N.B. After this call resp->fh needs an fh_put
60 nfsd_proc_setattr(struct svc_rqst *rqstp)
62 struct nfsd_sattrargs *argp = rqstp->rq_argp;
63 struct nfsd_attrstat *resp = rqstp->rq_resp;
64 struct iattr *iap = &argp->attrs;
68 dprintk("nfsd: SETATTR %s, valid=%x, size=%ld\n",
70 argp->attrs.ia_valid, (long) argp->attrs.ia_size);
72 fhp = fh_copy(&resp->fh, &argp->fh);
75 * NFSv2 does not differentiate between "set-[ac]time-to-now"
76 * which only requires access, and "set-[ac]time-to-X" which
78 * So if it looks like it might be "set both to the same time which
79 * is close to now", and if setattr_prepare fails, then we
80 * convert to "set to now" instead of "set to explicit time"
82 * We only call setattr_prepare as the last test as technically
83 * it is not an interface that we should be using.
85 #define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
86 #define MAX_TOUCH_TIME_ERROR (30*60)
87 if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET &&
88 iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec) {
92 * Now just make sure time is in the right ballpark.
93 * Solaris, at least, doesn't seem to care what the time
94 * request is. We require it be within 30 minutes of now.
96 time_t delta = iap->ia_atime.tv_sec - get_seconds();
98 nfserr = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP);
104 if (delta < MAX_TOUCH_TIME_ERROR &&
105 setattr_prepare(fhp->fh_dentry, iap) != 0) {
107 * Turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME.
108 * This will cause notify_change to set these times
111 iap->ia_valid &= ~BOTH_TIME_SET;
115 nfserr = nfsd_setattr(rqstp, fhp, iap, 0, (time_t)0);
117 return nfsd_return_attrs(nfserr, resp);
121 * Look up a path name component
122 * Note: the dentry in the resp->fh may be negative if the file
124 * N.B. After this call resp->fh needs an fh_put
127 nfsd_proc_lookup(struct svc_rqst *rqstp)
129 struct nfsd_diropargs *argp = rqstp->rq_argp;
130 struct nfsd_diropres *resp = rqstp->rq_resp;
133 dprintk("nfsd: LOOKUP %s %.*s\n",
134 SVCFH_fmt(&argp->fh), argp->len, argp->name);
136 fh_init(&resp->fh, NFS_FHSIZE);
137 nfserr = nfsd_lookup(rqstp, &argp->fh, argp->name, argp->len,
141 return nfsd_return_dirop(nfserr, resp);
148 nfsd_proc_readlink(struct svc_rqst *rqstp)
150 struct nfsd_readlinkargs *argp = rqstp->rq_argp;
151 struct nfsd_readlinkres *resp = rqstp->rq_resp;
154 dprintk("nfsd: READLINK %s\n", SVCFH_fmt(&argp->fh));
156 /* Read the symlink. */
157 resp->len = NFS_MAXPATHLEN;
158 nfserr = nfsd_readlink(rqstp, &argp->fh, argp->buffer, &resp->len);
165 * Read a portion of a file.
166 * N.B. After this call resp->fh needs an fh_put
169 nfsd_proc_read(struct svc_rqst *rqstp)
171 struct nfsd_readargs *argp = rqstp->rq_argp;
172 struct nfsd_readres *resp = rqstp->rq_resp;
175 dprintk("nfsd: READ %s %d bytes at %d\n",
176 SVCFH_fmt(&argp->fh),
177 argp->count, argp->offset);
179 /* Obtain buffer pointer for payload. 19 is 1 word for
180 * status, 17 words for fattr, and 1 word for the byte count.
183 if (NFSSVC_MAXBLKSIZE_V2 < argp->count) {
184 char buf[RPC_MAX_ADDRBUFLEN];
186 "oversized read request from %s (%d bytes)\n",
187 svc_print_addr(rqstp, buf, sizeof(buf)),
189 argp->count = NFSSVC_MAXBLKSIZE_V2;
191 svc_reserve_auth(rqstp, (19<<2) + argp->count + 4);
193 resp->count = argp->count;
194 nfserr = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh),
196 rqstp->rq_vec, argp->vlen,
199 if (nfserr) return nfserr;
200 return fh_getattr(&resp->fh, &resp->stat);
204 * Write data to a file
205 * N.B. After this call resp->fh needs an fh_put
208 nfsd_proc_write(struct svc_rqst *rqstp)
210 struct nfsd_writeargs *argp = rqstp->rq_argp;
211 struct nfsd_attrstat *resp = rqstp->rq_resp;
213 unsigned long cnt = argp->len;
215 dprintk("nfsd: WRITE %s %d bytes at %d\n",
216 SVCFH_fmt(&argp->fh),
217 argp->len, argp->offset);
219 nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh), argp->offset,
220 rqstp->rq_vec, argp->vlen, &cnt, NFS_DATA_SYNC);
221 return nfsd_return_attrs(nfserr, resp);
225 * CREATE processing is complicated. The keyword here is `overloaded.'
226 * The parent directory is kept locked between the check for existence
227 * and the actual create() call in compliance with VFS protocols.
228 * N.B. After this call _both_ argp->fh and resp->fh need an fh_put
231 nfsd_proc_create(struct svc_rqst *rqstp)
233 struct nfsd_createargs *argp = rqstp->rq_argp;
234 struct nfsd_diropres *resp = rqstp->rq_resp;
235 svc_fh *dirfhp = &argp->fh;
236 svc_fh *newfhp = &resp->fh;
237 struct iattr *attr = &argp->attrs;
239 struct dentry *dchild;
243 dev_t rdev = 0, wanted = new_decode_dev(attr->ia_size);
245 dprintk("nfsd: CREATE %s %.*s\n",
246 SVCFH_fmt(dirfhp), argp->len, argp->name);
248 /* First verify the parent file handle */
249 nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_EXEC);
251 goto done; /* must fh_put dirfhp even on error */
253 /* Check for NFSD_MAY_WRITE in nfsd_create if necessary */
255 nfserr = nfserr_exist;
256 if (isdotent(argp->name, argp->len))
258 hosterr = fh_want_write(dirfhp);
260 nfserr = nfserrno(hosterr);
264 fh_lock_nested(dirfhp, I_MUTEX_PARENT);
265 dchild = lookup_one_len(argp->name, dirfhp->fh_dentry, argp->len);
266 if (IS_ERR(dchild)) {
267 nfserr = nfserrno(PTR_ERR(dchild));
270 fh_init(newfhp, NFS_FHSIZE);
271 nfserr = fh_compose(newfhp, dirfhp->fh_export, dchild, dirfhp);
272 if (!nfserr && d_really_is_negative(dchild))
273 nfserr = nfserr_noent;
276 if (nfserr != nfserr_noent)
279 * If the new file handle wasn't verified, we can't tell
280 * whether the file exists or not. Time to bail ...
282 nfserr = nfserr_acces;
283 if (!newfhp->fh_dentry) {
285 "nfsd_proc_create: file handle not verified\n");
290 inode = d_inode(newfhp->fh_dentry);
292 /* Unfudge the mode bits */
293 if (attr->ia_valid & ATTR_MODE) {
294 type = attr->ia_mode & S_IFMT;
295 mode = attr->ia_mode & ~S_IFMT;
297 /* no type, so if target exists, assume same as that,
298 * else assume a file */
300 type = inode->i_mode & S_IFMT;
304 /* reserve rdev for later checking */
305 rdev = inode->i_rdev;
306 attr->ia_valid |= ATTR_SIZE;
310 /* this is probably a permission check..
311 * at least IRIX implements perm checking on
312 * echo thing > device-special-file-or-pipe
313 * by doing a CREATE with type==0
315 nfserr = nfsd_permission(rqstp,
318 NFSD_MAY_WRITE|NFSD_MAY_LOCAL_ACCESS);
319 if (nfserr && nfserr != nfserr_rofs)
326 type = inode->i_mode & S_IFMT;
327 mode = inode->i_mode & ~S_IFMT;
333 attr->ia_valid |= ATTR_MODE;
334 attr->ia_mode = mode;
336 /* Special treatment for non-regular files according to the
337 * gospel of sun micro
339 if (type != S_IFREG) {
340 if (type != S_IFBLK && type != S_IFCHR) {
342 } else if (type == S_IFCHR && !(attr->ia_valid & ATTR_SIZE)) {
343 /* If you think you've seen the worst, grok this. */
346 /* Okay, char or block special */
351 /* we've used the SIZE information, so discard it */
352 attr->ia_valid &= ~ATTR_SIZE;
354 /* Make sure the type and device matches */
355 nfserr = nfserr_exist;
356 if (inode && type != (inode->i_mode & S_IFMT))
362 /* File doesn't exist. Create it and set attrs */
363 nfserr = nfsd_create_locked(rqstp, dirfhp, argp->name,
364 argp->len, attr, type, rdev, newfhp);
365 } else if (type == S_IFREG) {
366 dprintk("nfsd: existing %s, valid=%x, size=%ld\n",
367 argp->name, attr->ia_valid, (long) attr->ia_size);
368 /* File already exists. We ignore all attributes except
369 * size, so that creat() behaves exactly like
370 * open(..., O_CREAT|O_TRUNC|O_WRONLY).
372 attr->ia_valid &= ATTR_SIZE;
374 nfserr = nfsd_setattr(rqstp, newfhp, attr, 0, (time_t)0);
378 /* We don't really need to unlock, as fh_put does it. */
380 fh_drop_write(dirfhp);
383 return nfsd_return_dirop(nfserr, resp);
387 nfsd_proc_remove(struct svc_rqst *rqstp)
389 struct nfsd_diropargs *argp = rqstp->rq_argp;
392 dprintk("nfsd: REMOVE %s %.*s\n", SVCFH_fmt(&argp->fh),
393 argp->len, argp->name);
395 /* Unlink. -SIFDIR means file must not be a directory */
396 nfserr = nfsd_unlink(rqstp, &argp->fh, -S_IFDIR, argp->name, argp->len);
402 nfsd_proc_rename(struct svc_rqst *rqstp)
404 struct nfsd_renameargs *argp = rqstp->rq_argp;
407 dprintk("nfsd: RENAME %s %.*s -> \n",
408 SVCFH_fmt(&argp->ffh), argp->flen, argp->fname);
409 dprintk("nfsd: -> %s %.*s\n",
410 SVCFH_fmt(&argp->tfh), argp->tlen, argp->tname);
412 nfserr = nfsd_rename(rqstp, &argp->ffh, argp->fname, argp->flen,
413 &argp->tfh, argp->tname, argp->tlen);
420 nfsd_proc_link(struct svc_rqst *rqstp)
422 struct nfsd_linkargs *argp = rqstp->rq_argp;
425 dprintk("nfsd: LINK %s ->\n",
426 SVCFH_fmt(&argp->ffh));
427 dprintk("nfsd: %s %.*s\n",
428 SVCFH_fmt(&argp->tfh),
432 nfserr = nfsd_link(rqstp, &argp->tfh, argp->tname, argp->tlen,
440 nfsd_proc_symlink(struct svc_rqst *rqstp)
442 struct nfsd_symlinkargs *argp = rqstp->rq_argp;
446 dprintk("nfsd: SYMLINK %s %.*s -> %.*s\n",
447 SVCFH_fmt(&argp->ffh), argp->flen, argp->fname,
448 argp->tlen, argp->tname);
450 fh_init(&newfh, NFS_FHSIZE);
452 * Crazy hack: the request fits in a page, and already-decoded
453 * attributes follow argp->tname, so it's safe to just write a
454 * null to ensure it's null-terminated:
456 argp->tname[argp->tlen] = '\0';
457 nfserr = nfsd_symlink(rqstp, &argp->ffh, argp->fname, argp->flen,
458 argp->tname, &newfh);
466 * Make directory. This operation is not idempotent.
467 * N.B. After this call resp->fh needs an fh_put
470 nfsd_proc_mkdir(struct svc_rqst *rqstp)
472 struct nfsd_createargs *argp = rqstp->rq_argp;
473 struct nfsd_diropres *resp = rqstp->rq_resp;
476 dprintk("nfsd: MKDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
478 if (resp->fh.fh_dentry) {
480 "nfsd_proc_mkdir: response already verified??\n");
483 argp->attrs.ia_valid &= ~ATTR_SIZE;
484 fh_init(&resp->fh, NFS_FHSIZE);
485 nfserr = nfsd_create(rqstp, &argp->fh, argp->name, argp->len,
486 &argp->attrs, S_IFDIR, 0, &resp->fh);
488 return nfsd_return_dirop(nfserr, resp);
495 nfsd_proc_rmdir(struct svc_rqst *rqstp)
497 struct nfsd_diropargs *argp = rqstp->rq_argp;
500 dprintk("nfsd: RMDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
502 nfserr = nfsd_unlink(rqstp, &argp->fh, S_IFDIR, argp->name, argp->len);
508 * Read a portion of a directory.
511 nfsd_proc_readdir(struct svc_rqst *rqstp)
513 struct nfsd_readdirargs *argp = rqstp->rq_argp;
514 struct nfsd_readdirres *resp = rqstp->rq_resp;
519 dprintk("nfsd: READDIR %s %d bytes at %d\n",
520 SVCFH_fmt(&argp->fh),
521 argp->count, argp->cookie);
523 /* Shrink to the client read size */
524 count = (argp->count >> 2) - 2;
526 /* Make sure we've room for the NULL ptr & eof flag */
531 resp->buffer = argp->buffer;
533 resp->buflen = count;
534 resp->common.err = nfs_ok;
535 /* Read directory and encode entries on the fly */
536 offset = argp->cookie;
537 nfserr = nfsd_readdir(rqstp, &argp->fh, &offset,
538 &resp->common, nfssvc_encode_entry);
540 resp->count = resp->buffer - argp->buffer;
542 *resp->offset = htonl(offset);
549 * Get file system info
552 nfsd_proc_statfs(struct svc_rqst *rqstp)
554 struct nfsd_fhandle *argp = rqstp->rq_argp;
555 struct nfsd_statfsres *resp = rqstp->rq_resp;
558 dprintk("nfsd: STATFS %s\n", SVCFH_fmt(&argp->fh));
560 nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats,
561 NFSD_MAY_BYPASS_GSS_ON_ROOT);
567 * NFSv2 Server procedures.
568 * Only the results of non-idempotent operations are cached.
570 struct nfsd_void { int dummy; };
572 #define ST 1 /* status */
573 #define FH 8 /* filehandle */
574 #define AT 18 /* attributes */
576 static const struct svc_procedure nfsd_procedures2[18] = {
578 .pc_func = nfsd_proc_null,
579 .pc_decode = nfssvc_decode_void,
580 .pc_encode = nfssvc_encode_void,
581 .pc_argsize = sizeof(struct nfsd_void),
582 .pc_ressize = sizeof(struct nfsd_void),
583 .pc_cachetype = RC_NOCACHE,
586 [NFSPROC_GETATTR] = {
587 .pc_func = nfsd_proc_getattr,
588 .pc_decode = nfssvc_decode_fhandle,
589 .pc_encode = nfssvc_encode_attrstat,
590 .pc_release = nfssvc_release_fhandle,
591 .pc_argsize = sizeof(struct nfsd_fhandle),
592 .pc_ressize = sizeof(struct nfsd_attrstat),
593 .pc_cachetype = RC_NOCACHE,
594 .pc_xdrressize = ST+AT,
596 [NFSPROC_SETATTR] = {
597 .pc_func = nfsd_proc_setattr,
598 .pc_decode = nfssvc_decode_sattrargs,
599 .pc_encode = nfssvc_encode_attrstat,
600 .pc_release = nfssvc_release_fhandle,
601 .pc_argsize = sizeof(struct nfsd_sattrargs),
602 .pc_ressize = sizeof(struct nfsd_attrstat),
603 .pc_cachetype = RC_REPLBUFF,
604 .pc_xdrressize = ST+AT,
607 .pc_decode = nfssvc_decode_void,
608 .pc_encode = nfssvc_encode_void,
609 .pc_argsize = sizeof(struct nfsd_void),
610 .pc_ressize = sizeof(struct nfsd_void),
611 .pc_cachetype = RC_NOCACHE,
615 .pc_func = nfsd_proc_lookup,
616 .pc_decode = nfssvc_decode_diropargs,
617 .pc_encode = nfssvc_encode_diropres,
618 .pc_release = nfssvc_release_fhandle,
619 .pc_argsize = sizeof(struct nfsd_diropargs),
620 .pc_ressize = sizeof(struct nfsd_diropres),
621 .pc_cachetype = RC_NOCACHE,
622 .pc_xdrressize = ST+FH+AT,
624 [NFSPROC_READLINK] = {
625 .pc_func = nfsd_proc_readlink,
626 .pc_decode = nfssvc_decode_readlinkargs,
627 .pc_encode = nfssvc_encode_readlinkres,
628 .pc_argsize = sizeof(struct nfsd_readlinkargs),
629 .pc_ressize = sizeof(struct nfsd_readlinkres),
630 .pc_cachetype = RC_NOCACHE,
631 .pc_xdrressize = ST+1+NFS_MAXPATHLEN/4,
634 .pc_func = nfsd_proc_read,
635 .pc_decode = nfssvc_decode_readargs,
636 .pc_encode = nfssvc_encode_readres,
637 .pc_release = nfssvc_release_fhandle,
638 .pc_argsize = sizeof(struct nfsd_readargs),
639 .pc_ressize = sizeof(struct nfsd_readres),
640 .pc_cachetype = RC_NOCACHE,
641 .pc_xdrressize = ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4,
643 [NFSPROC_WRITECACHE] = {
644 .pc_decode = nfssvc_decode_void,
645 .pc_encode = nfssvc_encode_void,
646 .pc_argsize = sizeof(struct nfsd_void),
647 .pc_ressize = sizeof(struct nfsd_void),
648 .pc_cachetype = RC_NOCACHE,
652 .pc_func = nfsd_proc_write,
653 .pc_decode = nfssvc_decode_writeargs,
654 .pc_encode = nfssvc_encode_attrstat,
655 .pc_release = nfssvc_release_fhandle,
656 .pc_argsize = sizeof(struct nfsd_writeargs),
657 .pc_ressize = sizeof(struct nfsd_attrstat),
658 .pc_cachetype = RC_REPLBUFF,
659 .pc_xdrressize = ST+AT,
662 .pc_func = nfsd_proc_create,
663 .pc_decode = nfssvc_decode_createargs,
664 .pc_encode = nfssvc_encode_diropres,
665 .pc_release = nfssvc_release_fhandle,
666 .pc_argsize = sizeof(struct nfsd_createargs),
667 .pc_ressize = sizeof(struct nfsd_diropres),
668 .pc_cachetype = RC_REPLBUFF,
669 .pc_xdrressize = ST+FH+AT,
672 .pc_func = nfsd_proc_remove,
673 .pc_decode = nfssvc_decode_diropargs,
674 .pc_encode = nfssvc_encode_void,
675 .pc_argsize = sizeof(struct nfsd_diropargs),
676 .pc_ressize = sizeof(struct nfsd_void),
677 .pc_cachetype = RC_REPLSTAT,
681 .pc_func = nfsd_proc_rename,
682 .pc_decode = nfssvc_decode_renameargs,
683 .pc_encode = nfssvc_encode_void,
684 .pc_argsize = sizeof(struct nfsd_renameargs),
685 .pc_ressize = sizeof(struct nfsd_void),
686 .pc_cachetype = RC_REPLSTAT,
690 .pc_func = nfsd_proc_link,
691 .pc_decode = nfssvc_decode_linkargs,
692 .pc_encode = nfssvc_encode_void,
693 .pc_argsize = sizeof(struct nfsd_linkargs),
694 .pc_ressize = sizeof(struct nfsd_void),
695 .pc_cachetype = RC_REPLSTAT,
698 [NFSPROC_SYMLINK] = {
699 .pc_func = nfsd_proc_symlink,
700 .pc_decode = nfssvc_decode_symlinkargs,
701 .pc_encode = nfssvc_encode_void,
702 .pc_argsize = sizeof(struct nfsd_symlinkargs),
703 .pc_ressize = sizeof(struct nfsd_void),
704 .pc_cachetype = RC_REPLSTAT,
708 .pc_func = nfsd_proc_mkdir,
709 .pc_decode = nfssvc_decode_createargs,
710 .pc_encode = nfssvc_encode_diropres,
711 .pc_release = nfssvc_release_fhandle,
712 .pc_argsize = sizeof(struct nfsd_createargs),
713 .pc_ressize = sizeof(struct nfsd_diropres),
714 .pc_cachetype = RC_REPLBUFF,
715 .pc_xdrressize = ST+FH+AT,
718 .pc_func = nfsd_proc_rmdir,
719 .pc_decode = nfssvc_decode_diropargs,
720 .pc_encode = nfssvc_encode_void,
721 .pc_argsize = sizeof(struct nfsd_diropargs),
722 .pc_ressize = sizeof(struct nfsd_void),
723 .pc_cachetype = RC_REPLSTAT,
726 [NFSPROC_READDIR] = {
727 .pc_func = nfsd_proc_readdir,
728 .pc_decode = nfssvc_decode_readdirargs,
729 .pc_encode = nfssvc_encode_readdirres,
730 .pc_argsize = sizeof(struct nfsd_readdirargs),
731 .pc_ressize = sizeof(struct nfsd_readdirres),
732 .pc_cachetype = RC_NOCACHE,
735 .pc_func = nfsd_proc_statfs,
736 .pc_decode = nfssvc_decode_fhandle,
737 .pc_encode = nfssvc_encode_statfsres,
738 .pc_argsize = sizeof(struct nfsd_fhandle),
739 .pc_ressize = sizeof(struct nfsd_statfsres),
740 .pc_cachetype = RC_NOCACHE,
741 .pc_xdrressize = ST+5,
746 static unsigned int nfsd_count2[ARRAY_SIZE(nfsd_procedures2)];
747 const struct svc_version nfsd_version2 = {
750 .vs_proc = nfsd_procedures2,
751 .vs_count = nfsd_count2,
752 .vs_dispatch = nfsd_dispatch,
753 .vs_xdrsize = NFS2_SVC_XDRSIZE,
757 * Map errnos to NFS errnos.
767 { nfserr_perm, -EPERM },
768 { nfserr_noent, -ENOENT },
770 { nfserr_nxio, -ENXIO },
771 { nfserr_fbig, -E2BIG },
772 { nfserr_acces, -EACCES },
773 { nfserr_exist, -EEXIST },
774 { nfserr_xdev, -EXDEV },
775 { nfserr_mlink, -EMLINK },
776 { nfserr_nodev, -ENODEV },
777 { nfserr_notdir, -ENOTDIR },
778 { nfserr_isdir, -EISDIR },
779 { nfserr_inval, -EINVAL },
780 { nfserr_fbig, -EFBIG },
781 { nfserr_nospc, -ENOSPC },
782 { nfserr_rofs, -EROFS },
783 { nfserr_mlink, -EMLINK },
784 { nfserr_nametoolong, -ENAMETOOLONG },
785 { nfserr_notempty, -ENOTEMPTY },
787 { nfserr_dquot, -EDQUOT },
789 { nfserr_stale, -ESTALE },
790 { nfserr_jukebox, -ETIMEDOUT },
791 { nfserr_jukebox, -ERESTARTSYS },
792 { nfserr_jukebox, -EAGAIN },
793 { nfserr_jukebox, -EWOULDBLOCK },
794 { nfserr_jukebox, -ENOMEM },
795 { nfserr_io, -ETXTBSY },
796 { nfserr_notsupp, -EOPNOTSUPP },
797 { nfserr_toosmall, -ETOOSMALL },
798 { nfserr_serverfault, -ESERVERFAULT },
799 { nfserr_serverfault, -ENFILE },
800 { nfserr_io, -EUCLEAN },
801 { nfserr_perm, -ENOKEY },
805 for (i = 0; i < ARRAY_SIZE(nfs_errtbl); i++) {
806 if (nfs_errtbl[i].syserr == errno)
807 return nfs_errtbl[i].nfserr;
809 WARN_ONCE(1, "nfsd: non-standard errno: %d\n", errno);