1 /* $NetBSD: nfs_nfsdsubs.c,v 1.2 2014/10/18 08:33:29 snj Exp $ */
2 /*-
3 * Copyright (c) 1989, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Rick Macklem at The University of Guelph.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 */
34
35 #include <sys/cdefs.h>
36 /* __FBSDID("FreeBSD: head/sys/fs/nfsserver/nfs_nfsdsubs.c 228260 2011-12-04 16:33:04Z rmacklem "); */
37 __RCSID("$NetBSD: nfs_nfsdsubs.c,v 1.2 2014/10/18 08:33:29 snj Exp $");
38
39 #ifndef APPLEKEXT
40 /*
41 * These functions support the macros and help fiddle mbuf chains for
42 * the nfs op functions. They do things like create the rpc header and
43 * copy data between mbuf chains and uio lists.
44 */
45 #include <fs/nfs/nfsport.h>
46
47 extern u_int32_t newnfs_true, newnfs_false;
48 extern int nfs_pubfhset;
49 extern struct nfsclienthashhead nfsclienthash[NFSCLIENTHASHSIZE];
50 extern struct nfslockhashhead nfslockhash[NFSLOCKHASHSIZE];
51 extern int nfsrv_useacl;
52 extern uid_t nfsrv_defaultuid;
53 extern gid_t nfsrv_defaultgid;
54
55 char nfs_v2pubfh[NFSX_V2FH];
56 static nfstype newnfsv2_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK,
57 NFNON, NFCHR, NFNON };
58 extern nfstype nfsv34_type[9];
59 #endif /* !APPLEKEXT */
60
61 SYSCTL_DECL(_vfs_nfsd);
62
63 static int disable_checkutf8 = 0;
64 SYSCTL_INT(_vfs_nfsd, OID_AUTO, disable_checkutf8, CTLFLAG_RW,
65 &disable_checkutf8, 0,
66 "Disable the NFSv4 check for a UTF8 compliant name");
67
68 static char nfsrv_hexdigit(char, int *);
69
70 /*
71 * Maps errno values to nfs error numbers.
72 * Use NFSERR_IO as the catch all for ones not specifically defined in
73 * RFC 1094.
74 */
75 static u_char nfsrv_v2errmap[ELAST] = {
76 NFSERR_PERM, NFSERR_NOENT, NFSERR_IO, NFSERR_IO, NFSERR_IO,
77 NFSERR_NXIO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
78 NFSERR_IO, NFSERR_IO, NFSERR_ACCES, NFSERR_IO, NFSERR_IO,
79 NFSERR_IO, NFSERR_EXIST, NFSERR_IO, NFSERR_NODEV, NFSERR_NOTDIR,
80 NFSERR_ISDIR, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
81 NFSERR_IO, NFSERR_FBIG, NFSERR_NOSPC, NFSERR_IO, NFSERR_ROFS,
82 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
83 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
84 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
85 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
86 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
87 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
88 NFSERR_IO, NFSERR_IO, NFSERR_NAMETOL, NFSERR_IO, NFSERR_IO,
89 NFSERR_NOTEMPTY, NFSERR_IO, NFSERR_IO, NFSERR_DQUOT, NFSERR_STALE,
90 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
91 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
92 NFSERR_IO,
93 };
94
95 /*
96 * Maps errno values to nfs error numbers.
97 * Although it is not obvious whether or not NFS clients really care if
98 * a returned error value is in the specified list for the procedure, the
99 * safest thing to do is filter them appropriately. For Version 2, the
100 * X/Open XNFS document is the only specification that defines error values
101 * for each RPC (The RFC simply lists all possible error values for all RPCs),
102 * so I have decided to not do this for Version 2.
103 * The first entry is the default error return and the rest are the valid
104 * errors for that RPC in increasing numeric order.
105 */
106 static short nfsv3err_null[] = {
107 0,
108 0,
109 };
110
111 static short nfsv3err_getattr[] = {
112 NFSERR_IO,
113 NFSERR_IO,
114 NFSERR_STALE,
115 NFSERR_BADHANDLE,
116 NFSERR_SERVERFAULT,
117 NFSERR_DELAY,
118 0,
119 };
120
121 static short nfsv3err_setattr[] = {
122 NFSERR_IO,
123 NFSERR_ACCES,
124 NFSERR_PERM,
125 NFSERR_IO,
126 NFSERR_INVAL,
127 NFSERR_NOSPC,
128 NFSERR_ROFS,
129 NFSERR_DQUOT,
130 NFSERR_STALE,
131 NFSERR_BADHANDLE,
132 NFSERR_NOT_SYNC,
133 NFSERR_SERVERFAULT,
134 NFSERR_DELAY,
135 0,
136 };
137
138 static short nfsv3err_lookup[] = {
139 NFSERR_IO,
140 NFSERR_NOENT,
141 NFSERR_ACCES,
142 NFSERR_NAMETOL,
143 NFSERR_IO,
144 NFSERR_NOTDIR,
145 NFSERR_STALE,
146 NFSERR_BADHANDLE,
147 NFSERR_SERVERFAULT,
148 NFSERR_DELAY,
149 0,
150 };
151
152 static short nfsv3err_access[] = {
153 NFSERR_IO,
154 NFSERR_IO,
155 NFSERR_STALE,
156 NFSERR_BADHANDLE,
157 NFSERR_SERVERFAULT,
158 NFSERR_DELAY,
159 0,
160 };
161
162 static short nfsv3err_readlink[] = {
163 NFSERR_IO,
164 NFSERR_IO,
165 NFSERR_ACCES,
166 NFSERR_INVAL,
167 NFSERR_STALE,
168 NFSERR_BADHANDLE,
169 NFSERR_NOTSUPP,
170 NFSERR_SERVERFAULT,
171 NFSERR_DELAY,
172 0,
173 };
174
175 static short nfsv3err_read[] = {
176 NFSERR_IO,
177 NFSERR_IO,
178 NFSERR_NXIO,
179 NFSERR_ACCES,
180 NFSERR_INVAL,
181 NFSERR_STALE,
182 NFSERR_BADHANDLE,
183 NFSERR_SERVERFAULT,
184 NFSERR_DELAY,
185 0,
186 };
187
188 static short nfsv3err_write[] = {
189 NFSERR_IO,
190 NFSERR_IO,
191 NFSERR_ACCES,
192 NFSERR_NOSPC,
193 NFSERR_INVAL,
194 NFSERR_FBIG,
195 NFSERR_ROFS,
196 NFSERR_DQUOT,
197 NFSERR_STALE,
198 NFSERR_BADHANDLE,
199 NFSERR_SERVERFAULT,
200 NFSERR_DELAY,
201 0,
202 };
203
204 static short nfsv3err_create[] = {
205 NFSERR_IO,
206 NFSERR_EXIST,
207 NFSERR_NAMETOL,
208 NFSERR_ACCES,
209 NFSERR_IO,
210 NFSERR_NOTDIR,
211 NFSERR_NOSPC,
212 NFSERR_ROFS,
213 NFSERR_DQUOT,
214 NFSERR_STALE,
215 NFSERR_BADHANDLE,
216 NFSERR_NOTSUPP,
217 NFSERR_SERVERFAULT,
218 NFSERR_DELAY,
219 0,
220 };
221
222 static short nfsv3err_mkdir[] = {
223 NFSERR_IO,
224 NFSERR_EXIST,
225 NFSERR_ACCES,
226 NFSERR_NAMETOL,
227 NFSERR_IO,
228 NFSERR_NOTDIR,
229 NFSERR_NOSPC,
230 NFSERR_ROFS,
231 NFSERR_DQUOT,
232 NFSERR_STALE,
233 NFSERR_BADHANDLE,
234 NFSERR_NOTSUPP,
235 NFSERR_SERVERFAULT,
236 NFSERR_DELAY,
237 0,
238 };
239
240 static short nfsv3err_symlink[] = {
241 NFSERR_IO,
242 NFSERR_ACCES,
243 NFSERR_EXIST,
244 NFSERR_NAMETOL,
245 NFSERR_NOSPC,
246 NFSERR_IO,
247 NFSERR_NOTDIR,
248 NFSERR_ROFS,
249 NFSERR_DQUOT,
250 NFSERR_STALE,
251 NFSERR_BADHANDLE,
252 NFSERR_NOTSUPP,
253 NFSERR_SERVERFAULT,
254 NFSERR_DELAY,
255 0,
256 };
257
258 static short nfsv3err_mknod[] = {
259 NFSERR_IO,
260 NFSERR_ACCES,
261 NFSERR_EXIST,
262 NFSERR_NAMETOL,
263 NFSERR_NOSPC,
264 NFSERR_IO,
265 NFSERR_NOTDIR,
266 NFSERR_ROFS,
267 NFSERR_DQUOT,
268 NFSERR_STALE,
269 NFSERR_BADHANDLE,
270 NFSERR_NOTSUPP,
271 NFSERR_SERVERFAULT,
272 NFSERR_DELAY,
273 NFSERR_BADTYPE,
274 0,
275 };
276
277 static short nfsv3err_remove[] = {
278 NFSERR_IO,
279 NFSERR_NOENT,
280 NFSERR_ACCES,
281 NFSERR_NAMETOL,
282 NFSERR_IO,
283 NFSERR_NOTDIR,
284 NFSERR_ROFS,
285 NFSERR_STALE,
286 NFSERR_BADHANDLE,
287 NFSERR_SERVERFAULT,
288 NFSERR_DELAY,
289 0,
290 };
291
292 static short nfsv3err_rmdir[] = {
293 NFSERR_IO,
294 NFSERR_NOENT,
295 NFSERR_ACCES,
296 NFSERR_NOTDIR,
297 NFSERR_NAMETOL,
298 NFSERR_IO,
299 NFSERR_EXIST,
300 NFSERR_INVAL,
301 NFSERR_ROFS,
302 NFSERR_NOTEMPTY,
303 NFSERR_STALE,
304 NFSERR_BADHANDLE,
305 NFSERR_NOTSUPP,
306 NFSERR_SERVERFAULT,
307 NFSERR_DELAY,
308 0,
309 };
310
311 static short nfsv3err_rename[] = {
312 NFSERR_IO,
313 NFSERR_NOENT,
314 NFSERR_ACCES,
315 NFSERR_EXIST,
316 NFSERR_NAMETOL,
317 NFSERR_XDEV,
318 NFSERR_IO,
319 NFSERR_NOTDIR,
320 NFSERR_ISDIR,
321 NFSERR_INVAL,
322 NFSERR_NOSPC,
323 NFSERR_ROFS,
324 NFSERR_MLINK,
325 NFSERR_NOTEMPTY,
326 NFSERR_DQUOT,
327 NFSERR_STALE,
328 NFSERR_BADHANDLE,
329 NFSERR_NOTSUPP,
330 NFSERR_SERVERFAULT,
331 NFSERR_DELAY,
332 0,
333 };
334
335 static short nfsv3err_link[] = {
336 NFSERR_IO,
337 NFSERR_ACCES,
338 NFSERR_EXIST,
339 NFSERR_NAMETOL,
340 NFSERR_IO,
341 NFSERR_XDEV,
342 NFSERR_NOTDIR,
343 NFSERR_INVAL,
344 NFSERR_NOSPC,
345 NFSERR_ROFS,
346 NFSERR_MLINK,
347 NFSERR_DQUOT,
348 NFSERR_STALE,
349 NFSERR_BADHANDLE,
350 NFSERR_NOTSUPP,
351 NFSERR_SERVERFAULT,
352 NFSERR_DELAY,
353 0,
354 };
355
356 static short nfsv3err_readdir[] = {
357 NFSERR_IO,
358 NFSERR_ACCES,
359 NFSERR_NOTDIR,
360 NFSERR_IO,
361 NFSERR_STALE,
362 NFSERR_BADHANDLE,
363 NFSERR_BAD_COOKIE,
364 NFSERR_TOOSMALL,
365 NFSERR_SERVERFAULT,
366 NFSERR_DELAY,
367 0,
368 };
369
370 static short nfsv3err_readdirplus[] = {
371 NFSERR_IO,
372 NFSERR_ACCES,
373 NFSERR_NOTDIR,
374 NFSERR_IO,
375 NFSERR_STALE,
376 NFSERR_BADHANDLE,
377 NFSERR_BAD_COOKIE,
378 NFSERR_NOTSUPP,
379 NFSERR_TOOSMALL,
380 NFSERR_SERVERFAULT,
381 NFSERR_DELAY,
382 0,
383 };
384
385 static short nfsv3err_fsstat[] = {
386 NFSERR_IO,
387 NFSERR_IO,
388 NFSERR_STALE,
389 NFSERR_BADHANDLE,
390 NFSERR_SERVERFAULT,
391 NFSERR_DELAY,
392 0,
393 };
394
395 static short nfsv3err_fsinfo[] = {
396 NFSERR_STALE,
397 NFSERR_STALE,
398 NFSERR_BADHANDLE,
399 NFSERR_SERVERFAULT,
400 NFSERR_DELAY,
401 0,
402 };
403
404 static short nfsv3err_pathconf[] = {
405 NFSERR_STALE,
406 NFSERR_STALE,
407 NFSERR_BADHANDLE,
408 NFSERR_SERVERFAULT,
409 NFSERR_DELAY,
410 0,
411 };
412
413 static short nfsv3err_commit[] = {
414 NFSERR_IO,
415 NFSERR_IO,
416 NFSERR_STALE,
417 NFSERR_BADHANDLE,
418 NFSERR_SERVERFAULT,
419 NFSERR_DELAY,
420 0,
421 };
422
423 static short *nfsrv_v3errmap[] = {
424 nfsv3err_null,
425 nfsv3err_getattr,
426 nfsv3err_setattr,
427 nfsv3err_lookup,
428 nfsv3err_access,
429 nfsv3err_readlink,
430 nfsv3err_read,
431 nfsv3err_write,
432 nfsv3err_create,
433 nfsv3err_mkdir,
434 nfsv3err_symlink,
435 nfsv3err_mknod,
436 nfsv3err_remove,
437 nfsv3err_rmdir,
438 nfsv3err_rename,
439 nfsv3err_link,
440 nfsv3err_readdir,
441 nfsv3err_readdirplus,
442 nfsv3err_fsstat,
443 nfsv3err_fsinfo,
444 nfsv3err_pathconf,
445 nfsv3err_commit,
446 };
447
448 /*
449 * And the same for V4.
450 */
451 static short nfsv4err_null[] = {
452 0,
453 0,
454 };
455
456 static short nfsv4err_access[] = {
457 NFSERR_IO,
458 NFSERR_ACCES,
459 NFSERR_BADHANDLE,
460 NFSERR_BADXDR,
461 NFSERR_DELAY,
462 NFSERR_FHEXPIRED,
463 NFSERR_INVAL,
464 NFSERR_IO,
465 NFSERR_MOVED,
466 NFSERR_NOFILEHANDLE,
467 NFSERR_RESOURCE,
468 NFSERR_SERVERFAULT,
469 NFSERR_STALE,
470 0,
471 };
472
473 static short nfsv4err_close[] = {
474 NFSERR_EXPIRED,
475 NFSERR_ADMINREVOKED,
476 NFSERR_BADHANDLE,
477 NFSERR_BADSEQID,
478 NFSERR_BADSTATEID,
479 NFSERR_BADXDR,
480 NFSERR_DELAY,
481 NFSERR_EXPIRED,
482 NFSERR_FHEXPIRED,
483 NFSERR_INVAL,
484 NFSERR_ISDIR,
485 NFSERR_LEASEMOVED,
486 NFSERR_LOCKSHELD,
487 NFSERR_MOVED,
488 NFSERR_NOFILEHANDLE,
489 NFSERR_OLDSTATEID,
490 NFSERR_RESOURCE,
491 NFSERR_SERVERFAULT,
492 NFSERR_STALE,
493 NFSERR_STALESTATEID,
494 0,
495 };
496
497 static short nfsv4err_commit[] = {
498 NFSERR_IO,
499 NFSERR_ACCES,
500 NFSERR_BADHANDLE,
501 NFSERR_BADXDR,
502 NFSERR_FHEXPIRED,
503 NFSERR_INVAL,
504 NFSERR_IO,
505 NFSERR_ISDIR,
506 NFSERR_MOVED,
507 NFSERR_NOFILEHANDLE,
508 NFSERR_RESOURCE,
509 NFSERR_ROFS,
510 NFSERR_SERVERFAULT,
511 NFSERR_STALE,
512 0,
513 };
514
515 static short nfsv4err_create[] = {
516 NFSERR_IO,
517 NFSERR_ACCES,
518 NFSERR_ATTRNOTSUPP,
519 NFSERR_BADCHAR,
520 NFSERR_BADHANDLE,
521 NFSERR_BADNAME,
522 NFSERR_BADOWNER,
523 NFSERR_BADTYPE,
524 NFSERR_BADXDR,
525 NFSERR_DELAY,
526 NFSERR_DQUOT,
527 NFSERR_EXIST,
528 NFSERR_FHEXPIRED,
529 NFSERR_INVAL,
530 NFSERR_IO,
531 NFSERR_MOVED,
532 NFSERR_NAMETOL,
533 NFSERR_NOFILEHANDLE,
534 NFSERR_NOSPC,
535 NFSERR_NOTDIR,
536 NFSERR_PERM,
537 NFSERR_RESOURCE,
538 NFSERR_ROFS,
539 NFSERR_SERVERFAULT,
540 NFSERR_STALE,
541 0,
542 };
543
544 static short nfsv4err_delegpurge[] = {
545 NFSERR_SERVERFAULT,
546 NFSERR_BADXDR,
547 NFSERR_NOTSUPP,
548 NFSERR_LEASEMOVED,
549 NFSERR_MOVED,
550 NFSERR_RESOURCE,
551 NFSERR_SERVERFAULT,
552 NFSERR_STALECLIENTID,
553 0,
554 };
555
556 static short nfsv4err_delegreturn[] = {
557 NFSERR_SERVERFAULT,
558 NFSERR_ADMINREVOKED,
559 NFSERR_BADSTATEID,
560 NFSERR_BADXDR,
561 NFSERR_EXPIRED,
562 NFSERR_INVAL,
563 NFSERR_LEASEMOVED,
564 NFSERR_MOVED,
565 NFSERR_NOFILEHANDLE,
566 NFSERR_NOTSUPP,
567 NFSERR_OLDSTATEID,
568 NFSERR_RESOURCE,
569 NFSERR_SERVERFAULT,
570 NFSERR_STALE,
571 NFSERR_STALESTATEID,
572 0,
573 };
574
575 static short nfsv4err_getattr[] = {
576 NFSERR_IO,
577 NFSERR_ACCES,
578 NFSERR_BADHANDLE,
579 NFSERR_BADXDR,
580 NFSERR_DELAY,
581 NFSERR_FHEXPIRED,
582 NFSERR_INVAL,
583 NFSERR_IO,
584 NFSERR_MOVED,
585 NFSERR_NOFILEHANDLE,
586 NFSERR_RESOURCE,
587 NFSERR_SERVERFAULT,
588 NFSERR_STALE,
589 0,
590 };
591
592 static short nfsv4err_getfh[] = {
593 NFSERR_BADHANDLE,
594 NFSERR_BADHANDLE,
595 NFSERR_FHEXPIRED,
596 NFSERR_MOVED,
597 NFSERR_NOFILEHANDLE,
598 NFSERR_RESOURCE,
599 NFSERR_SERVERFAULT,
600 NFSERR_STALE,
601 0,
602 };
603
604 static short nfsv4err_link[] = {
605 NFSERR_IO,
606 NFSERR_ACCES,
607 NFSERR_BADCHAR,
608 NFSERR_BADHANDLE,
609 NFSERR_BADNAME,
610 NFSERR_BADXDR,
611 NFSERR_DELAY,
612 NFSERR_DQUOT,
613 NFSERR_EXIST,
614 NFSERR_FHEXPIRED,
615 NFSERR_FILEOPEN,
616 NFSERR_INVAL,
617 NFSERR_IO,
618 NFSERR_ISDIR,
619 NFSERR_MLINK,
620 NFSERR_MOVED,
621 NFSERR_NAMETOL,
622 NFSERR_NOENT,
623 NFSERR_NOFILEHANDLE,
624 NFSERR_NOSPC,
625 NFSERR_NOTDIR,
626 NFSERR_NOTSUPP,
627 NFSERR_RESOURCE,
628 NFSERR_ROFS,
629 NFSERR_SERVERFAULT,
630 NFSERR_STALE,
631 NFSERR_WRONGSEC,
632 NFSERR_XDEV,
633 0,
634 };
635
636 static short nfsv4err_lock[] = {
637 NFSERR_SERVERFAULT,
638 NFSERR_ACCES,
639 NFSERR_ADMINREVOKED,
640 NFSERR_BADHANDLE,
641 NFSERR_BADRANGE,
642 NFSERR_BADSEQID,
643 NFSERR_BADSTATEID,
644 NFSERR_BADXDR,
645 NFSERR_DEADLOCK,
646 NFSERR_DELAY,
647 NFSERR_DENIED,
648 NFSERR_EXPIRED,
649 NFSERR_FHEXPIRED,
650 NFSERR_GRACE,
651 NFSERR_INVAL,
652 NFSERR_ISDIR,
653 NFSERR_LEASEMOVED,
654 NFSERR_LOCKNOTSUPP,
655 NFSERR_LOCKRANGE,
656 NFSERR_MOVED,
657 NFSERR_NOFILEHANDLE,
658 NFSERR_NOGRACE,
659 NFSERR_OLDSTATEID,
660 NFSERR_OPENMODE,
661 NFSERR_RECLAIMBAD,
662 NFSERR_RECLAIMCONFLICT,
663 NFSERR_RESOURCE,
664 NFSERR_SERVERFAULT,
665 NFSERR_STALE,
666 NFSERR_STALECLIENTID,
667 NFSERR_STALESTATEID,
668 0,
669 };
670
671 static short nfsv4err_lockt[] = {
672 NFSERR_SERVERFAULT,
673 NFSERR_ACCES,
674 NFSERR_BADHANDLE,
675 NFSERR_BADRANGE,
676 NFSERR_BADXDR,
677 NFSERR_DELAY,
678 NFSERR_DENIED,
679 NFSERR_FHEXPIRED,
680 NFSERR_GRACE,
681 NFSERR_INVAL,
682 NFSERR_ISDIR,
683 NFSERR_LEASEMOVED,
684 NFSERR_LOCKRANGE,
685 NFSERR_MOVED,
686 NFSERR_NOFILEHANDLE,
687 NFSERR_RESOURCE,
688 NFSERR_SERVERFAULT,
689 NFSERR_STALE,
690 NFSERR_STALECLIENTID,
691 0,
692 };
693
694 static short nfsv4err_locku[] = {
695 NFSERR_SERVERFAULT,
696 NFSERR_ACCES,
697 NFSERR_ADMINREVOKED,
698 NFSERR_BADHANDLE,
699 NFSERR_BADRANGE,
700 NFSERR_BADSEQID,
701 NFSERR_BADSTATEID,
702 NFSERR_BADXDR,
703 NFSERR_EXPIRED,
704 NFSERR_FHEXPIRED,
705 NFSERR_GRACE,
706 NFSERR_INVAL,
707 NFSERR_ISDIR,
708 NFSERR_LEASEMOVED,
709 NFSERR_LOCKRANGE,
710 NFSERR_MOVED,
711 NFSERR_NOFILEHANDLE,
712 NFSERR_OLDSTATEID,
713 NFSERR_RESOURCE,
714 NFSERR_SERVERFAULT,
715 NFSERR_STALE,
716 NFSERR_STALESTATEID,
717 0,
718 };
719
720 static short nfsv4err_lookup[] = {
721 NFSERR_IO,
722 NFSERR_ACCES,
723 NFSERR_BADCHAR,
724 NFSERR_BADHANDLE,
725 NFSERR_BADNAME,
726 NFSERR_BADXDR,
727 NFSERR_FHEXPIRED,
728 NFSERR_INVAL,
729 NFSERR_IO,
730 NFSERR_MOVED,
731 NFSERR_NAMETOL,
732 NFSERR_NOENT,
733 NFSERR_NOFILEHANDLE,
734 NFSERR_NOTDIR,
735 NFSERR_RESOURCE,
736 NFSERR_SERVERFAULT,
737 NFSERR_STALE,
738 NFSERR_SYMLINK,
739 NFSERR_WRONGSEC,
740 0,
741 };
742
743 static short nfsv4err_lookupp[] = {
744 NFSERR_IO,
745 NFSERR_ACCES,
746 NFSERR_BADHANDLE,
747 NFSERR_FHEXPIRED,
748 NFSERR_IO,
749 NFSERR_MOVED,
750 NFSERR_NOENT,
751 NFSERR_NOFILEHANDLE,
752 NFSERR_NOTDIR,
753 NFSERR_RESOURCE,
754 NFSERR_SERVERFAULT,
755 NFSERR_STALE,
756 0,
757 };
758
759 static short nfsv4err_nverify[] = {
760 NFSERR_IO,
761 NFSERR_ACCES,
762 NFSERR_ATTRNOTSUPP,
763 NFSERR_BADCHAR,
764 NFSERR_BADHANDLE,
765 NFSERR_BADXDR,
766 NFSERR_DELAY,
767 NFSERR_FHEXPIRED,
768 NFSERR_INVAL,
769 NFSERR_IO,
770 NFSERR_MOVED,
771 NFSERR_NOFILEHANDLE,
772 NFSERR_RESOURCE,
773 NFSERR_SAME,
774 NFSERR_SERVERFAULT,
775 NFSERR_STALE,
776 0,
777 };
778
779 static short nfsv4err_open[] = {
780 NFSERR_IO,
781 NFSERR_ACCES,
782 NFSERR_ADMINREVOKED,
783 NFSERR_ATTRNOTSUPP,
784 NFSERR_BADCHAR,
785 NFSERR_BADHANDLE,
786 NFSERR_BADNAME,
787 NFSERR_BADOWNER,
788 NFSERR_BADSEQID,
789 NFSERR_BADXDR,
790 NFSERR_DELAY,
791 NFSERR_DQUOT,
792 NFSERR_EXIST,
793 NFSERR_EXPIRED,
794 NFSERR_FHEXPIRED,
795 NFSERR_GRACE,
796 NFSERR_IO,
797 NFSERR_INVAL,
798 NFSERR_ISDIR,
799 NFSERR_LEASEMOVED,
800 NFSERR_MOVED,
801 NFSERR_NAMETOL,
802 NFSERR_NOENT,
803 NFSERR_NOFILEHANDLE,
804 NFSERR_NOGRACE,
805 NFSERR_NOSPC,
806 NFSERR_NOTDIR,
807 NFSERR_NOTSUPP,
808 NFSERR_PERM,
809 NFSERR_RECLAIMBAD,
810 NFSERR_RECLAIMCONFLICT,
811 NFSERR_RESOURCE,
812 NFSERR_ROFS,
813 NFSERR_SERVERFAULT,
814 NFSERR_SHAREDENIED,
815 NFSERR_STALE,
816 NFSERR_STALECLIENTID,
817 NFSERR_SYMLINK,
818 NFSERR_WRONGSEC,
819 0,
820 };
821
822 static short nfsv4err_openattr[] = {
823 NFSERR_IO,
824 NFSERR_ACCES,
825 NFSERR_BADHANDLE,
826 NFSERR_BADXDR,
827 NFSERR_DELAY,
828 NFSERR_DQUOT,
829 NFSERR_FHEXPIRED,
830 NFSERR_IO,
831 NFSERR_MOVED,
832 NFSERR_NOENT,
833 NFSERR_NOFILEHANDLE,
834 NFSERR_NOSPC,
835 NFSERR_NOTSUPP,
836 NFSERR_RESOURCE,
837 NFSERR_ROFS,
838 NFSERR_SERVERFAULT,
839 NFSERR_STALE,
840 0,
841 };
842
843 static short nfsv4err_openconfirm[] = {
844 NFSERR_SERVERFAULT,
845 NFSERR_ADMINREVOKED,
846 NFSERR_BADHANDLE,
847 NFSERR_BADSEQID,
848 NFSERR_BADSTATEID,
849 NFSERR_BADXDR,
850 NFSERR_EXPIRED,
851 NFSERR_FHEXPIRED,
852 NFSERR_INVAL,
853 NFSERR_ISDIR,
854 NFSERR_MOVED,
855 NFSERR_NOFILEHANDLE,
856 NFSERR_OLDSTATEID,
857 NFSERR_RESOURCE,
858 NFSERR_SERVERFAULT,
859 NFSERR_STALE,
860 NFSERR_STALESTATEID,
861 0,
862 };
863
864 static short nfsv4err_opendowngrade[] = {
865 NFSERR_SERVERFAULT,
866 NFSERR_ADMINREVOKED,
867 NFSERR_BADHANDLE,
868 NFSERR_BADSEQID,
869 NFSERR_BADSTATEID,
870 NFSERR_BADXDR,
871 NFSERR_EXPIRED,
872 NFSERR_FHEXPIRED,
873 NFSERR_INVAL,
874 NFSERR_MOVED,
875 NFSERR_NOFILEHANDLE,
876 NFSERR_OLDSTATEID,
877 NFSERR_RESOURCE,
878 NFSERR_SERVERFAULT,
879 NFSERR_STALE,
880 NFSERR_STALESTATEID,
881 0,
882 };
883
884 static short nfsv4err_putfh[] = {
885 NFSERR_SERVERFAULT,
886 NFSERR_BADHANDLE,
887 NFSERR_BADXDR,
888 NFSERR_FHEXPIRED,
889 NFSERR_MOVED,
890 NFSERR_RESOURCE,
891 NFSERR_SERVERFAULT,
892 NFSERR_STALE,
893 NFSERR_WRONGSEC,
894 0,
895 };
896
897 static short nfsv4err_putpubfh[] = {
898 NFSERR_SERVERFAULT,
899 NFSERR_RESOURCE,
900 NFSERR_SERVERFAULT,
901 NFSERR_WRONGSEC,
902 0,
903 };
904
905 static short nfsv4err_putrootfh[] = {
906 NFSERR_SERVERFAULT,
907 NFSERR_RESOURCE,
908 NFSERR_SERVERFAULT,
909 NFSERR_WRONGSEC,
910 0,
911 };
912
913 static short nfsv4err_read[] = {
914 NFSERR_IO,
915 NFSERR_ACCES,
916 NFSERR_ADMINREVOKED,
917 NFSERR_BADHANDLE,
918 NFSERR_BADSTATEID,
919 NFSERR_BADXDR,
920 NFSERR_DELAY,
921 NFSERR_EXPIRED,
922 NFSERR_FHEXPIRED,
923 NFSERR_GRACE,
924 NFSERR_IO,
925 NFSERR_INVAL,
926 NFSERR_ISDIR,
927 NFSERR_LEASEMOVED,
928 NFSERR_LOCKED,
929 NFSERR_MOVED,
930 NFSERR_NOFILEHANDLE,
931 NFSERR_NXIO,
932 NFSERR_OLDSTATEID,
933 NFSERR_OPENMODE,
934 NFSERR_RESOURCE,
935 NFSERR_SERVERFAULT,
936 NFSERR_STALE,
937 NFSERR_STALESTATEID,
938 0,
939 };
940
941 static short nfsv4err_readdir[] = {
942 NFSERR_IO,
943 NFSERR_ACCES,
944 NFSERR_BADHANDLE,
945 NFSERR_BAD_COOKIE,
946 NFSERR_BADXDR,
947 NFSERR_DELAY,
948 NFSERR_FHEXPIRED,
949 NFSERR_INVAL,
950 NFSERR_IO,
951 NFSERR_MOVED,
952 NFSERR_NOFILEHANDLE,
953 NFSERR_NOTDIR,
954 NFSERR_NOTSAME,
955 NFSERR_RESOURCE,
956 NFSERR_SERVERFAULT,
957 NFSERR_STALE,
958 NFSERR_TOOSMALL,
959 0,
960 };
961
962 static short nfsv4err_readlink[] = {
963 NFSERR_IO,
964 NFSERR_ACCES,
965 NFSERR_BADHANDLE,
966 NFSERR_DELAY,
967 NFSERR_FHEXPIRED,
968 NFSERR_INVAL,
969 NFSERR_IO,
970 NFSERR_ISDIR,
971 NFSERR_MOVED,
972 NFSERR_NOFILEHANDLE,
973 NFSERR_NOTSUPP,
974 NFSERR_RESOURCE,
975 NFSERR_SERVERFAULT,
976 NFSERR_STALE,
977 0,
978 };
979
980 static short nfsv4err_remove[] = {
981 NFSERR_IO,
982 NFSERR_ACCES,
983 NFSERR_BADCHAR,
984 NFSERR_BADHANDLE,
985 NFSERR_BADNAME,
986 NFSERR_BADXDR,
987 NFSERR_DELAY,
988 NFSERR_FHEXPIRED,
989 NFSERR_FILEOPEN,
990 NFSERR_INVAL,
991 NFSERR_IO,
992 NFSERR_MOVED,
993 NFSERR_NAMETOL,
994 NFSERR_NOENT,
995 NFSERR_NOFILEHANDLE,
996 NFSERR_NOTDIR,
997 NFSERR_NOTEMPTY,
998 NFSERR_RESOURCE,
999 NFSERR_ROFS,
1000 NFSERR_SERVERFAULT,
1001 NFSERR_STALE,
1002 0,
1003 };
1004
1005 static short nfsv4err_rename[] = {
1006 NFSERR_IO,
1007 NFSERR_ACCES,
1008 NFSERR_BADCHAR,
1009 NFSERR_BADHANDLE,
1010 NFSERR_BADNAME,
1011 NFSERR_BADXDR,
1012 NFSERR_DELAY,
1013 NFSERR_DQUOT,
1014 NFSERR_EXIST,
1015 NFSERR_FHEXPIRED,
1016 NFSERR_FILEOPEN,
1017 NFSERR_INVAL,
1018 NFSERR_IO,
1019 NFSERR_MOVED,
1020 NFSERR_NAMETOL,
1021 NFSERR_NOENT,
1022 NFSERR_NOFILEHANDLE,
1023 NFSERR_NOSPC,
1024 NFSERR_NOTDIR,
1025 NFSERR_NOTEMPTY,
1026 NFSERR_RESOURCE,
1027 NFSERR_ROFS,
1028 NFSERR_SERVERFAULT,
1029 NFSERR_STALE,
1030 NFSERR_WRONGSEC,
1031 NFSERR_XDEV,
1032 0,
1033 };
1034
1035 static short nfsv4err_renew[] = {
1036 NFSERR_SERVERFAULT,
1037 NFSERR_ACCES,
1038 NFSERR_ADMINREVOKED,
1039 NFSERR_BADXDR,
1040 NFSERR_CBPATHDOWN,
1041 NFSERR_EXPIRED,
1042 NFSERR_LEASEMOVED,
1043 NFSERR_RESOURCE,
1044 NFSERR_SERVERFAULT,
1045 NFSERR_STALECLIENTID,
1046 0,
1047 };
1048
1049 static short nfsv4err_restorefh[] = {
1050 NFSERR_SERVERFAULT,
1051 NFSERR_BADHANDLE,
1052 NFSERR_FHEXPIRED,
1053 NFSERR_MOVED,
1054 NFSERR_RESOURCE,
1055 NFSERR_RESTOREFH,
1056 NFSERR_SERVERFAULT,
1057 NFSERR_STALE,
1058 NFSERR_WRONGSEC,
1059 0,
1060 };
1061
1062 static short nfsv4err_savefh[] = {
1063 NFSERR_SERVERFAULT,
1064 NFSERR_BADHANDLE,
1065 NFSERR_FHEXPIRED,
1066 NFSERR_MOVED,
1067 NFSERR_NOFILEHANDLE,
1068 NFSERR_RESOURCE,
1069 NFSERR_SERVERFAULT,
1070 NFSERR_STALE,
1071 0,
1072 };
1073
1074 static short nfsv4err_secinfo[] = {
1075 NFSERR_SERVERFAULT,
1076 NFSERR_ACCES,
1077 NFSERR_BADCHAR,
1078 NFSERR_BADHANDLE,
1079 NFSERR_BADNAME,
1080 NFSERR_BADXDR,
1081 NFSERR_FHEXPIRED,
1082 NFSERR_INVAL,
1083 NFSERR_MOVED,
1084 NFSERR_NAMETOL,
1085 NFSERR_NOENT,
1086 NFSERR_NOFILEHANDLE,
1087 NFSERR_NOTDIR,
1088 NFSERR_RESOURCE,
1089 NFSERR_SERVERFAULT,
1090 NFSERR_STALE,
1091 0,
1092 };
1093
1094 static short nfsv4err_setattr[] = {
1095 NFSERR_IO,
1096 NFSERR_ACCES,
1097 NFSERR_ADMINREVOKED,
1098 NFSERR_ATTRNOTSUPP,
1099 NFSERR_BADCHAR,
1100 NFSERR_BADHANDLE,
1101 NFSERR_BADOWNER,
1102 NFSERR_BADSTATEID,
1103 NFSERR_BADXDR,
1104 NFSERR_DELAY,
1105 NFSERR_DQUOT,
1106 NFSERR_EXPIRED,
1107 NFSERR_FBIG,
1108 NFSERR_FHEXPIRED,
1109 NFSERR_GRACE,
1110 NFSERR_INVAL,
1111 NFSERR_IO,
1112 NFSERR_ISDIR,
1113 NFSERR_LOCKED,
1114 NFSERR_MOVED,
1115 NFSERR_NOFILEHANDLE,
1116 NFSERR_NOSPC,
1117 NFSERR_OLDSTATEID,
1118 NFSERR_OPENMODE,
1119 NFSERR_PERM,
1120 NFSERR_RESOURCE,
1121 NFSERR_ROFS,
1122 NFSERR_SERVERFAULT,
1123 NFSERR_STALE,
1124 NFSERR_STALESTATEID,
1125 0,
1126 };
1127
1128 static short nfsv4err_setclientid[] = {
1129 NFSERR_SERVERFAULT,
1130 NFSERR_BADXDR,
1131 NFSERR_CLIDINUSE,
1132 NFSERR_INVAL,
1133 NFSERR_RESOURCE,
1134 NFSERR_SERVERFAULT,
1135 0,
1136 };
1137
1138 static short nfsv4err_setclientidconfirm[] = {
1139 NFSERR_SERVERFAULT,
1140 NFSERR_BADXDR,
1141 NFSERR_CLIDINUSE,
1142 NFSERR_RESOURCE,
1143 NFSERR_SERVERFAULT,
1144 NFSERR_STALECLIENTID,
1145 0,
1146 };
1147
1148 static short nfsv4err_verify[] = {
1149 NFSERR_SERVERFAULT,
1150 NFSERR_ACCES,
1151 NFSERR_ATTRNOTSUPP,
1152 NFSERR_BADCHAR,
1153 NFSERR_BADHANDLE,
1154 NFSERR_BADXDR,
1155 NFSERR_DELAY,
1156 NFSERR_FHEXPIRED,
1157 NFSERR_INVAL,
1158 NFSERR_MOVED,
1159 NFSERR_NOFILEHANDLE,
1160 NFSERR_NOTSAME,
1161 NFSERR_RESOURCE,
1162 NFSERR_SERVERFAULT,
1163 NFSERR_STALE,
1164 0,
1165 };
1166
1167 static short nfsv4err_write[] = {
1168 NFSERR_IO,
1169 NFSERR_ACCES,
1170 NFSERR_ADMINREVOKED,
1171 NFSERR_BADHANDLE,
1172 NFSERR_BADSTATEID,
1173 NFSERR_BADXDR,
1174 NFSERR_DELAY,
1175 NFSERR_DQUOT,
1176 NFSERR_EXPIRED,
1177 NFSERR_FBIG,
1178 NFSERR_FHEXPIRED,
1179 NFSERR_GRACE,
1180 NFSERR_INVAL,
1181 NFSERR_IO,
1182 NFSERR_ISDIR,
1183 NFSERR_LEASEMOVED,
1184 NFSERR_LOCKED,
1185 NFSERR_MOVED,
1186 NFSERR_NOFILEHANDLE,
1187 NFSERR_NOSPC,
1188 NFSERR_NXIO,
1189 NFSERR_OLDSTATEID,
1190 NFSERR_OPENMODE,
1191 NFSERR_RESOURCE,
1192 NFSERR_ROFS,
1193 NFSERR_SERVERFAULT,
1194 NFSERR_STALE,
1195 NFSERR_STALESTATEID,
1196 0,
1197 };
1198
1199 static short nfsv4err_releaselockowner[] = {
1200 NFSERR_SERVERFAULT,
1201 NFSERR_ADMINREVOKED,
1202 NFSERR_BADXDR,
1203 NFSERR_EXPIRED,
1204 NFSERR_LEASEMOVED,
1205 NFSERR_LOCKSHELD,
1206 NFSERR_RESOURCE,
1207 NFSERR_SERVERFAULT,
1208 NFSERR_STALECLIENTID,
1209 0,
1210 };
1211
1212 static short *nfsrv_v4errmap[] = {
1213 nfsv4err_null,
1214 nfsv4err_null,
1215 nfsv4err_null,
1216 nfsv4err_access,
1217 nfsv4err_close,
1218 nfsv4err_commit,
1219 nfsv4err_create,
1220 nfsv4err_delegpurge,
1221 nfsv4err_delegreturn,
1222 nfsv4err_getattr,
1223 nfsv4err_getfh,
1224 nfsv4err_link,
1225 nfsv4err_lock,
1226 nfsv4err_lockt,
1227 nfsv4err_locku,
1228 nfsv4err_lookup,
1229 nfsv4err_lookupp,
1230 nfsv4err_nverify,
1231 nfsv4err_open,
1232 nfsv4err_openattr,
1233 nfsv4err_openconfirm,
1234 nfsv4err_opendowngrade,
1235 nfsv4err_putfh,
1236 nfsv4err_putpubfh,
1237 nfsv4err_putrootfh,
1238 nfsv4err_read,
1239 nfsv4err_readdir,
1240 nfsv4err_readlink,
1241 nfsv4err_remove,
1242 nfsv4err_rename,
1243 nfsv4err_renew,
1244 nfsv4err_restorefh,
1245 nfsv4err_savefh,
1246 nfsv4err_secinfo,
1247 nfsv4err_setattr,
1248 nfsv4err_setclientid,
1249 nfsv4err_setclientidconfirm,
1250 nfsv4err_verify,
1251 nfsv4err_write,
1252 nfsv4err_releaselockowner,
1253 };
1254
1255 /*
1256 * A fiddled version of m_adj() that ensures null fill to a long
1257 * boundary and only trims off the back end
1258 */
1259 APPLESTATIC void
nfsrv_adj(mbuf_t mp,int len,int nul)1260 nfsrv_adj(mbuf_t mp, int len, int nul)
1261 {
1262 mbuf_t m;
1263 int count, i;
1264 char *cp;
1265
1266 /*
1267 * Trim from tail. Scan the mbuf chain,
1268 * calculating its length and finding the last mbuf.
1269 * If the adjustment only affects this mbuf, then just
1270 * adjust and return. Otherwise, rescan and truncate
1271 * after the remaining size.
1272 */
1273 count = 0;
1274 m = mp;
1275 for (;;) {
1276 count += mbuf_len(m);
1277 if (mbuf_next(m) == NULL)
1278 break;
1279 m = mbuf_next(m);
1280 }
1281 if (mbuf_len(m) > len) {
1282 mbuf_setlen(m, mbuf_len(m) - len);
1283 if (nul > 0) {
1284 cp = NFSMTOD(m, caddr_t) + mbuf_len(m) - nul;
1285 for (i = 0; i < nul; i++)
1286 *cp++ = '\0';
1287 }
1288 return;
1289 }
1290 count -= len;
1291 if (count < 0)
1292 count = 0;
1293 /*
1294 * Correct length for chain is "count".
1295 * Find the mbuf with last data, adjust its length,
1296 * and toss data from remaining mbufs on chain.
1297 */
1298 for (m = mp; m; m = mbuf_next(m)) {
1299 if (mbuf_len(m) >= count) {
1300 mbuf_setlen(m, count);
1301 if (nul > 0) {
1302 cp = NFSMTOD(m, caddr_t) + mbuf_len(m) - nul;
1303 for (i = 0; i < nul; i++)
1304 *cp++ = '\0';
1305 }
1306 break;
1307 }
1308 count -= mbuf_len(m);
1309 }
1310 for (m = mbuf_next(m); m; m = mbuf_next(m))
1311 mbuf_setlen(m, 0);
1312 }
1313
1314 /*
1315 * Make these functions instead of macros, so that the kernel text size
1316 * doesn't get too big...
1317 */
1318 APPLESTATIC void
nfsrv_wcc(struct nfsrv_descript * nd,int before_ret,struct nfsvattr * before_nvap,int after_ret,struct nfsvattr * after_nvap)1319 nfsrv_wcc(struct nfsrv_descript *nd, int before_ret,
1320 struct nfsvattr *before_nvap, int after_ret, struct nfsvattr *after_nvap)
1321 {
1322 u_int32_t *tl;
1323
1324 if (before_ret) {
1325 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1326 *tl = newnfs_false;
1327 } else {
1328 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
1329 *tl++ = newnfs_true;
1330 txdr_hyper(before_nvap->na_size, tl);
1331 tl += 2;
1332 txdr_nfsv3time(&(before_nvap->na_mtime), tl);
1333 tl += 2;
1334 txdr_nfsv3time(&(before_nvap->na_ctime), tl);
1335 }
1336 nfsrv_postopattr(nd, after_ret, after_nvap);
1337 }
1338
1339 APPLESTATIC void
nfsrv_postopattr(struct nfsrv_descript * nd,int after_ret,struct nfsvattr * after_nvap)1340 nfsrv_postopattr(struct nfsrv_descript *nd, int after_ret,
1341 struct nfsvattr *after_nvap)
1342 {
1343 u_int32_t *tl;
1344
1345 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1346 if (after_ret)
1347 *tl = newnfs_false;
1348 else {
1349 *tl = newnfs_true;
1350 nfsrv_fillattr(nd, after_nvap);
1351 }
1352 }
1353
1354 /*
1355 * Fill in file attributes for V2 and 3. For V4, call a separate
1356 * routine that sifts through all the attribute bits.
1357 */
1358 APPLESTATIC void
nfsrv_fillattr(struct nfsrv_descript * nd,struct nfsvattr * nvap)1359 nfsrv_fillattr(struct nfsrv_descript *nd, struct nfsvattr *nvap)
1360 {
1361 struct nfs_fattr *fp;
1362 int fattr_size;
1363
1364 /*
1365 * Build space for the attribute structure.
1366 */
1367 if (nd->nd_flag & ND_NFSV3)
1368 fattr_size = NFSX_V3FATTR;
1369 else
1370 fattr_size = NFSX_V2FATTR;
1371 NFSM_BUILD(fp, struct nfs_fattr *, fattr_size);
1372
1373 /*
1374 * Now just fill it all in.
1375 */
1376 fp->fa_nlink = txdr_unsigned(nvap->na_nlink);
1377 fp->fa_uid = txdr_unsigned(nvap->na_uid);
1378 fp->fa_gid = txdr_unsigned(nvap->na_gid);
1379 if (nd->nd_flag & ND_NFSV3) {
1380 fp->fa_type = vtonfsv34_type(nvap->na_type);
1381 fp->fa_mode = vtonfsv34_mode(nvap->na_mode);
1382 txdr_hyper(nvap->na_size, &fp->fa3_size);
1383 txdr_hyper(nvap->na_bytes, &fp->fa3_used);
1384 fp->fa3_rdev.specdata1 = txdr_unsigned(NFSMAJOR(nvap->na_rdev));
1385 fp->fa3_rdev.specdata2 = txdr_unsigned(NFSMINOR(nvap->na_rdev));
1386 fp->fa3_fsid.nfsuquad[0] = 0;
1387 fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(nvap->na_fsid);
1388 fp->fa3_fileid.nfsuquad[0] = 0;
1389 fp->fa3_fileid.nfsuquad[1] = txdr_unsigned(nvap->na_fileid);
1390 txdr_nfsv3time(&nvap->na_atime, &fp->fa3_atime);
1391 txdr_nfsv3time(&nvap->na_mtime, &fp->fa3_mtime);
1392 txdr_nfsv3time(&nvap->na_ctime, &fp->fa3_ctime);
1393 } else {
1394 fp->fa_type = vtonfsv2_type(nvap->na_type);
1395 fp->fa_mode = vtonfsv2_mode(nvap->na_type, nvap->na_mode);
1396 fp->fa2_size = txdr_unsigned(nvap->na_size);
1397 fp->fa2_blocksize = txdr_unsigned(nvap->na_blocksize);
1398 if (nvap->na_type == VFIFO)
1399 fp->fa2_rdev = 0xffffffff;
1400 else
1401 fp->fa2_rdev = txdr_unsigned(nvap->na_rdev);
1402 fp->fa2_blocks = txdr_unsigned(nvap->na_bytes / NFS_FABLKSIZE);
1403 fp->fa2_fsid = txdr_unsigned(nvap->na_fsid);
1404 fp->fa2_fileid = txdr_unsigned(nvap->na_fileid);
1405 txdr_nfsv2time(&nvap->na_atime, &fp->fa2_atime);
1406 txdr_nfsv2time(&nvap->na_mtime, &fp->fa2_mtime);
1407 txdr_nfsv2time(&nvap->na_ctime, &fp->fa2_ctime);
1408 }
1409 }
1410
1411 /*
1412 * This function gets a file handle out of an mbuf list.
1413 * It returns 0 for success, EBADRPC otherwise.
1414 * If sets the third flagp argument to 1 if the file handle is
1415 * the public file handle.
1416 * For NFSv4, if the length is incorrect, set nd_repstat == NFSERR_BADHANDLE
1417 */
1418 APPLESTATIC int
nfsrv_mtofh(struct nfsrv_descript * nd,struct nfsrvfh * fhp)1419 nfsrv_mtofh(struct nfsrv_descript *nd, struct nfsrvfh *fhp)
1420 {
1421 u_int32_t *tl;
1422 int error = 0, len, copylen;
1423
1424 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
1425 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
1426 len = fxdr_unsigned(int, *tl);
1427 if (len == 0 && nfs_pubfhset && (nd->nd_flag & ND_NFSV3) &&
1428 nd->nd_procnum == NFSPROC_LOOKUP) {
1429 nd->nd_flag |= ND_PUBLOOKUP;
1430 goto nfsmout;
1431 }
1432 if (len < NFSRV_MINFH || len > NFSRV_MAXFH) {
1433 if (nd->nd_flag & ND_NFSV4) {
1434 if (len > 0 && len <= NFSX_V4FHMAX) {
1435 error = nfsm_advance(nd, NFSM_RNDUP(len), -1);
1436 if (error)
1437 goto nfsmout;
1438 nd->nd_repstat = NFSERR_BADHANDLE;
1439 goto nfsmout;
1440 } else {
1441 error = EBADRPC;
1442 goto nfsmout;
1443 }
1444 } else {
1445 error = EBADRPC;
1446 goto nfsmout;
1447 }
1448 }
1449 copylen = len;
1450 } else {
1451 /*
1452 * For NFSv2, the file handle is always 32 bytes on the
1453 * wire, but this server only cares about the first
1454 * NFSRV_MAXFH bytes.
1455 */
1456 len = NFSX_V2FH;
1457 copylen = NFSRV_MAXFH;
1458 }
1459 NFSM_DISSECT(tl, u_int32_t *, len);
1460 if ((nd->nd_flag & ND_NFSV2) && nfs_pubfhset &&
1461 nd->nd_procnum == NFSPROC_LOOKUP &&
1462 !NFSBCMP((caddr_t)tl, nfs_v2pubfh, NFSX_V2FH)) {
1463 nd->nd_flag |= ND_PUBLOOKUP;
1464 goto nfsmout;
1465 }
1466 NFSBCOPY(tl, (caddr_t)fhp->nfsrvfh_data, copylen);
1467 fhp->nfsrvfh_len = copylen;
1468 nfsmout:
1469 NFSEXITCODE2(error, nd);
1470 return (error);
1471 }
1472
1473 /*
1474 * Map errnos to NFS error numbers. For Version 3 and 4 also filter out error
1475 * numbers not specified for the associated procedure.
1476 * NFSPROC_NOOP is a special case, where the high order bits of nd_repstat
1477 * should be cleared. NFSPROC_NOOP is used to return errors when a valid
1478 * RPC procedure is not involved.
1479 * Returns the error number in XDR.
1480 */
1481 APPLESTATIC int
nfsd_errmap(struct nfsrv_descript * nd)1482 nfsd_errmap(struct nfsrv_descript *nd)
1483 {
1484 short *defaulterrp, *errp;
1485
1486 if (!nd->nd_repstat)
1487 return (0);
1488 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
1489 if (nd->nd_procnum == NFSPROC_NOOP)
1490 return (txdr_unsigned(nd->nd_repstat & 0xffff));
1491 if (nd->nd_flag & ND_NFSV3)
1492 errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum];
1493 else if (nd->nd_repstat == EBADRPC)
1494 return (txdr_unsigned(NFSERR_BADXDR));
1495 else if (nd->nd_repstat == NFSERR_MINORVERMISMATCH ||
1496 nd->nd_repstat == NFSERR_OPILLEGAL)
1497 return (txdr_unsigned(nd->nd_repstat));
1498 else
1499 errp = defaulterrp = nfsrv_v4errmap[nd->nd_procnum];
1500 while (*++errp)
1501 if (*errp == nd->nd_repstat)
1502 return (txdr_unsigned(nd->nd_repstat));
1503 return (txdr_unsigned(*defaulterrp));
1504 }
1505 if (nd->nd_repstat <= ELAST)
1506 return (txdr_unsigned(nfsrv_v2errmap[nd->nd_repstat - 1]));
1507 return (txdr_unsigned(NFSERR_IO));
1508 }
1509
1510 /*
1511 * Check to see if setting a uid/gid is permitted when creating a new
1512 * file object. (Called when uid and/or gid is specified in the
1513 * settable attributes for V4.
1514 */
1515 APPLESTATIC int
nfsrv_checkuidgid(struct nfsrv_descript * nd,struct nfsvattr * nvap)1516 nfsrv_checkuidgid(struct nfsrv_descript *nd, struct nfsvattr *nvap)
1517 {
1518 int error = 0;
1519
1520 /*
1521 * If not setting either uid nor gid, it's OK.
1522 */
1523 if (NFSVNO_NOTSETUID(nvap) && NFSVNO_NOTSETGID(nvap))
1524 goto out;
1525 if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid == nfsrv_defaultuid)
1526 || (NFSVNO_ISSETGID(nvap) && nvap->na_gid == nfsrv_defaultgid)) {
1527 error = NFSERR_BADOWNER;
1528 goto out;
1529 }
1530 if (nd->nd_cred->cr_uid == 0)
1531 goto out;
1532 if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid != nd->nd_cred->cr_uid) ||
1533 (NFSVNO_ISSETGID(nvap) && nvap->na_gid != nd->nd_cred->cr_gid &&
1534 !groupmember(nvap->na_gid, nd->nd_cred)))
1535 error = NFSERR_PERM;
1536
1537 out:
1538 NFSEXITCODE2(error, nd);
1539 return (error);
1540 }
1541
1542 /*
1543 * and this routine fixes up the settable attributes for V4 if allowed
1544 * by nfsrv_checkuidgid().
1545 */
1546 APPLESTATIC void
nfsrv_fixattr(struct nfsrv_descript * nd,vnode_t vp,struct nfsvattr * nvap,NFSACL_T * aclp,NFSPROC_T * p,nfsattrbit_t * attrbitp,struct nfsexstuff * exp)1547 nfsrv_fixattr(struct nfsrv_descript *nd, vnode_t vp,
1548 struct nfsvattr *nvap, NFSACL_T *aclp, NFSPROC_T *p, nfsattrbit_t *attrbitp,
1549 struct nfsexstuff *exp)
1550 {
1551 int change = 0;
1552 struct nfsvattr nva;
1553 uid_t tuid;
1554 int error;
1555 nfsattrbit_t nattrbits;
1556
1557 /*
1558 * Maybe this should be done for V2 and 3 but it never has been
1559 * and nobody seems to be upset, so I think it's best not to change
1560 * the V2 and 3 semantics.
1561 */
1562 if ((nd->nd_flag & ND_NFSV4) == 0)
1563 goto out;
1564 NFSVNO_ATTRINIT(&nva);
1565 NFSZERO_ATTRBIT(&nattrbits);
1566 tuid = nd->nd_cred->cr_uid;
1567 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_OWNER) &&
1568 NFSVNO_ISSETUID(nvap) &&
1569 nvap->na_uid != nd->nd_cred->cr_uid) {
1570 if (nd->nd_cred->cr_uid == 0) {
1571 nva.na_uid = nvap->na_uid;
1572 change++;
1573 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_OWNER);
1574 } else {
1575 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_OWNER);
1576 }
1577 }
1578 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_TIMEACCESSSET) &&
1579 NFSVNO_ISSETATIME(nvap)) {
1580 nva.na_atime = nvap->na_atime;
1581 change++;
1582 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_TIMEACCESSSET);
1583 }
1584 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_TIMEMODIFYSET) &&
1585 NFSVNO_ISSETMTIME(nvap)) {
1586 nva.na_mtime = nvap->na_mtime;
1587 change++;
1588 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_TIMEMODIFYSET);
1589 }
1590 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_OWNERGROUP) &&
1591 NFSVNO_ISSETGID(nvap)) {
1592 if (nvap->na_gid == nd->nd_cred->cr_gid ||
1593 groupmember(nvap->na_gid, nd->nd_cred)) {
1594 nd->nd_cred->cr_uid = 0;
1595 nva.na_gid = nvap->na_gid;
1596 change++;
1597 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_OWNERGROUP);
1598 } else {
1599 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_OWNERGROUP);
1600 }
1601 }
1602 if (change) {
1603 error = nfsvno_setattr(vp, &nva, nd->nd_cred, p, exp);
1604 if (error) {
1605 NFSCLRALL_ATTRBIT(attrbitp, &nattrbits);
1606 }
1607 }
1608 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_SIZE) &&
1609 NFSVNO_ISSETSIZE(nvap) && nvap->na_size != (u_quad_t)0) {
1610 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_SIZE);
1611 }
1612 #ifdef NFS4_ACL_EXTATTR_NAME
1613 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_ACL) &&
1614 nfsrv_useacl != 0 && aclp != NULL) {
1615 if (aclp->acl_cnt > 0) {
1616 error = nfsrv_setacl(vp, aclp, nd->nd_cred, p);
1617 if (error) {
1618 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_ACL);
1619 }
1620 }
1621 } else
1622 #endif
1623 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_ACL);
1624 nd->nd_cred->cr_uid = tuid;
1625
1626 out:
1627 NFSEXITCODE2(0, nd);
1628 }
1629
1630 /*
1631 * Translate an ASCII hex digit to its binary value. Return -1 if the
1632 * char isn't a hex digit.
1633 */
1634 static char
nfsrv_hexdigit(char c,int * err)1635 nfsrv_hexdigit(char c, int *err)
1636 {
1637
1638 *err = 0;
1639 if (c >= '0' && c <= '9')
1640 return (c - '0');
1641 if (c >= 'a' && c <= 'f')
1642 return (c - 'a' + ((char)10));
1643 if (c >= 'A' && c <= 'F')
1644 return (c - 'A' + ((char)10));
1645 /* Not valid ! */
1646 *err = 1;
1647 return (1); /* BOGUS */
1648 }
1649
1650 /*
1651 * Check to see if NFSERR_MOVED can be returned for this op. Return 1 iff
1652 * it can be.
1653 */
1654 APPLESTATIC int
nfsrv_errmoved(int op)1655 nfsrv_errmoved(int op)
1656 {
1657 short *errp;
1658
1659 errp = nfsrv_v4errmap[op];
1660 while (*errp != 0) {
1661 if (*errp == NFSERR_MOVED)
1662 return (1);
1663 errp++;
1664 }
1665 return (0);
1666 }
1667
1668 /*
1669 * Fill in attributes for a Referral.
1670 * (Return the number of bytes of XDR created.)
1671 */
1672 APPLESTATIC int
nfsrv_putreferralattr(struct nfsrv_descript * nd,nfsattrbit_t * retbitp,struct nfsreferral * refp,int getattr,int * reterrp)1673 nfsrv_putreferralattr(struct nfsrv_descript *nd, nfsattrbit_t *retbitp,
1674 struct nfsreferral *refp, int getattr, int *reterrp)
1675 {
1676 u_int32_t *tl, *retnump;
1677 u_char *cp, *cp2;
1678 int prefixnum, retnum = 0, i, len, bitpos, rderrbit = 0, nonrefbit = 0;
1679 int fslocationsbit = 0;
1680 nfsattrbit_t tmpbits, refbits;
1681
1682 NFSREFERRAL_ATTRBIT(&refbits);
1683 if (getattr)
1684 NFSCLRBIT_ATTRBIT(&refbits, NFSATTRBIT_RDATTRERROR);
1685 else if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_RDATTRERROR))
1686 rderrbit = 1;
1687 if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_FSLOCATIONS))
1688 fslocationsbit = 1;
1689
1690 /*
1691 * Check for the case where unsupported referral attributes are
1692 * requested.
1693 */
1694 NFSSET_ATTRBIT(&tmpbits, retbitp);
1695 NFSCLRALL_ATTRBIT(&tmpbits, &refbits);
1696 if (NFSNONZERO_ATTRBIT(&tmpbits))
1697 nonrefbit = 1;
1698
1699 if (nonrefbit && !fslocationsbit && (getattr || !rderrbit)) {
1700 *reterrp = NFSERR_MOVED;
1701 return (0);
1702 }
1703
1704 /*
1705 * Now we can fill in the attributes.
1706 */
1707 NFSSET_ATTRBIT(&tmpbits, retbitp);
1708 NFSCLRNOT_ATTRBIT(&tmpbits, &refbits);
1709
1710 /*
1711 * Put out the attribute bitmap for the ones being filled in
1712 * and get the field for the number of attributes returned.
1713 */
1714 prefixnum = nfsrv_putattrbit(nd, &tmpbits);
1715 NFSM_BUILD(retnump, u_int32_t *, NFSX_UNSIGNED);
1716 prefixnum += NFSX_UNSIGNED;
1717
1718 /*
1719 * Now, loop around filling in the attributes for each bit set.
1720 */
1721 for (bitpos = 0; bitpos < NFSATTRBIT_MAX; bitpos++) {
1722 if (NFSISSET_ATTRBIT(&tmpbits, bitpos)) {
1723 switch (bitpos) {
1724 case NFSATTRBIT_TYPE:
1725 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1726 *tl = txdr_unsigned(NFDIR);
1727 retnum += NFSX_UNSIGNED;
1728 break;
1729 case NFSATTRBIT_FSID:
1730 NFSM_BUILD(tl, u_int32_t *, NFSX_V4FSID);
1731 *tl++ = 0;
1732 *tl++ = txdr_unsigned(NFSV4ROOT_FSID0);
1733 *tl++ = 0;
1734 *tl = txdr_unsigned(NFSV4ROOT_REFERRAL);
1735 retnum += NFSX_V4FSID;
1736 break;
1737 case NFSATTRBIT_RDATTRERROR:
1738 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1739 if (nonrefbit)
1740 *tl = txdr_unsigned(NFSERR_MOVED);
1741 else
1742 *tl = 0;
1743 retnum += NFSX_UNSIGNED;
1744 break;
1745 case NFSATTRBIT_FSLOCATIONS:
1746 retnum += nfsm_strtom(nd, "/", 1);
1747 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1748 *tl = txdr_unsigned(refp->nfr_srvcnt);
1749 retnum += NFSX_UNSIGNED;
1750 cp = refp->nfr_srvlist;
1751 for (i = 0; i < refp->nfr_srvcnt; i++) {
1752 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1753 *tl = txdr_unsigned(1);
1754 retnum += NFSX_UNSIGNED;
1755 cp2 = STRCHR(cp, ':');
1756 if (cp2 != NULL)
1757 len = cp2 - cp;
1758 else
1759 len = 1;
1760 retnum += nfsm_strtom(nd, cp, len);
1761 if (cp2 != NULL)
1762 cp = cp2 + 1;
1763 cp2 = STRCHR(cp, ',');
1764 if (cp2 != NULL)
1765 len = cp2 - cp;
1766 else
1767 len = strlen(cp);
1768 retnum += nfsm_strtom(nd, cp, len);
1769 if (cp2 != NULL)
1770 cp = cp2 + 1;
1771 }
1772 break;
1773 case NFSATTRBIT_MOUNTEDONFILEID:
1774 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
1775 *tl++ = 0;
1776 *tl = txdr_unsigned(refp->nfr_dfileno);
1777 retnum += NFSX_HYPER;
1778 break;
1779 default:
1780 printf("EEK! Bad V4 refattr bitpos=%d\n", bitpos);
1781 };
1782 }
1783 }
1784 *retnump = txdr_unsigned(retnum);
1785 return (retnum + prefixnum);
1786 }
1787
1788 /*
1789 * Parse a file name out of a request.
1790 */
1791 APPLESTATIC int
nfsrv_parsename(struct nfsrv_descript * nd,char * bufp,u_long * hashp,NFSPATHLEN_T * outlenp)1792 nfsrv_parsename(struct nfsrv_descript *nd, char *bufp, u_long *hashp,
1793 NFSPATHLEN_T *outlenp)
1794 {
1795 char *fromcp, *tocp, val = '\0';
1796 mbuf_t md;
1797 int i;
1798 int rem, len, error = 0, pubtype = 0, outlen = 0, percent = 0;
1799 char digit;
1800 u_int32_t *tl;
1801 u_long hash = 0;
1802
1803 if (hashp != NULL)
1804 *hashp = 0;
1805 tocp = bufp;
1806 /*
1807 * For V4, check for lookup parent.
1808 * Otherwise, get the component name.
1809 */
1810 if ((nd->nd_flag & ND_NFSV4) && nd->nd_procnum == NFSV4OP_LOOKUPP) {
1811 *tocp++ = '.';
1812 hash += ((u_char)'.');
1813 *tocp++ = '.';
1814 hash += ((u_char)'.');
1815 outlen = 2;
1816 } else {
1817 /*
1818 * First, get the name length.
1819 */
1820 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
1821 len = fxdr_unsigned(int, *tl);
1822 if (len > NFS_MAXNAMLEN) {
1823 nd->nd_repstat = NFSERR_NAMETOL;
1824 error = 0;
1825 goto nfsmout;
1826 } else if (len <= 0) {
1827 nd->nd_repstat = NFSERR_INVAL;
1828 error = 0;
1829 goto nfsmout;
1830 }
1831
1832 /*
1833 * Now, copy the component name into the buffer.
1834 */
1835 fromcp = nd->nd_dpos;
1836 md = nd->nd_md;
1837 rem = NFSMTOD(md, caddr_t) + mbuf_len(md) - fromcp;
1838 for (i = 0; i < len; i++) {
1839 while (rem == 0) {
1840 md = mbuf_next(md);
1841 if (md == NULL) {
1842 error = EBADRPC;
1843 goto nfsmout;
1844 }
1845 fromcp = NFSMTOD(md, caddr_t);
1846 rem = mbuf_len(md);
1847 }
1848 if (*fromcp == '\0') {
1849 nd->nd_repstat = EACCES;
1850 error = 0;
1851 goto nfsmout;
1852 }
1853 /*
1854 * For lookups on the public filehandle, do some special
1855 * processing on the name. (The public file handle is the
1856 * root of the public file system for this server.)
1857 */
1858 if (nd->nd_flag & ND_PUBLOOKUP) {
1859 /*
1860 * If the first char is ASCII, it is a canonical
1861 * path, otherwise it is a native path. (RFC2054
1862 * doesn't actually state what it is if the first
1863 * char isn't ASCII or 0x80, so I assume native.)
1864 * pubtype == 1 -> native path
1865 * pubtype == 2 -> canonical path
1866 */
1867 if (i == 0) {
1868 if (*fromcp & 0x80) {
1869 /*
1870 * Since RFC2054 doesn't indicate
1871 * that a native path of just 0x80
1872 * isn't allowed, I'll replace the
1873 * 0x80 with '/' instead of just
1874 * throwing it away.
1875 */
1876 *fromcp = '/';
1877 pubtype = 1;
1878 } else {
1879 pubtype = 2;
1880 }
1881 }
1882 /*
1883 * '/' only allowed in a native path
1884 */
1885 if (*fromcp == '/' && pubtype != 1) {
1886 nd->nd_repstat = EACCES;
1887 error = 0;
1888 goto nfsmout;
1889 }
1890
1891 /*
1892 * For the special case of 2 hex digits after a
1893 * '%' in an absolute path, calculate the value.
1894 * percent == 1 -> indicates "get first hex digit"
1895 * percent == 2 -> indicates "get second hex digit"
1896 */
1897 if (percent > 0) {
1898 digit = nfsrv_hexdigit(*fromcp, &error);
1899 if (error) {
1900 nd->nd_repstat = EACCES;
1901 error = 0;
1902 goto nfsmout;
1903 }
1904 if (percent == 1) {
1905 val = (digit << 4);
1906 percent = 2;
1907 } else {
1908 val += digit;
1909 percent = 0;
1910 *tocp++ = val;
1911 hash += ((u_char)val);
1912 outlen++;
1913 }
1914 } else {
1915 if (*fromcp == '%' && pubtype == 2) {
1916 /*
1917 * Must be followed by 2 hex digits
1918 */
1919 if ((len - i) < 3) {
1920 nd->nd_repstat = EACCES;
1921 error = 0;
1922 goto nfsmout;
1923 }
1924 percent = 1;
1925 } else {
1926 *tocp++ = *fromcp;
1927 hash += ((u_char)*fromcp);
1928 outlen++;
1929 }
1930 }
1931 } else {
1932 /*
1933 * Normal, non lookup on public, name.
1934 */
1935 if (*fromcp == '/') {
1936 if (nd->nd_flag & ND_NFSV4)
1937 nd->nd_repstat = NFSERR_BADNAME;
1938 else
1939 nd->nd_repstat = EACCES;
1940 error = 0;
1941 goto nfsmout;
1942 }
1943 hash += ((u_char)*fromcp);
1944 *tocp++ = *fromcp;
1945 outlen++;
1946 }
1947 fromcp++;
1948 rem--;
1949 }
1950 nd->nd_md = md;
1951 nd->nd_dpos = fromcp;
1952 i = NFSM_RNDUP(len) - len;
1953 if (i > 0) {
1954 if (rem >= i) {
1955 nd->nd_dpos += i;
1956 } else {
1957 error = nfsm_advance(nd, i, rem);
1958 if (error)
1959 goto nfsmout;
1960 }
1961 }
1962
1963 /*
1964 * For v4, don't allow lookups of '.' or '..' and
1965 * also check for non-utf8 strings.
1966 */
1967 if (nd->nd_flag & ND_NFSV4) {
1968 if ((outlen == 1 && bufp[0] == '.') ||
1969 (outlen == 2 && bufp[0] == '.' &&
1970 bufp[1] == '.')) {
1971 nd->nd_repstat = NFSERR_BADNAME;
1972 error = 0;
1973 goto nfsmout;
1974 }
1975 if (disable_checkutf8 == 0 &&
1976 nfsrv_checkutf8((u_int8_t *)bufp, outlen)) {
1977 nd->nd_repstat = NFSERR_INVAL;
1978 error = 0;
1979 goto nfsmout;
1980 }
1981 }
1982 }
1983 *tocp = '\0';
1984 *outlenp = (size_t)outlen;
1985 if (hashp != NULL)
1986 *hashp = hash;
1987 nfsmout:
1988 NFSEXITCODE2(error, nd);
1989 return (error);
1990 }
1991
1992 /*
1993 * Check the tcp socket sequence number has been acknowledged.
1994 */
1995 int
nfsrv_checksockseqnum(struct socket * so,tcp_seq tcpseqval)1996 nfsrv_checksockseqnum(struct socket *so, tcp_seq tcpseqval)
1997 {
1998 tcp_seq maxseq, unaseq;
1999 int error, ret;
2000
2001 error = nfsrv_getsocksndseq(so, &maxseq, &unaseq);
2002 if (error)
2003 return (0);
2004 ret = SEQ_GEQ(unaseq, tcpseqval);
2005 return (ret);
2006 }
2007
2008 /*
2009 * Get the tcp sequence number to be acknowledged.
2010 */
2011 int
nfsrv_getsockseqnum(struct socket * so,tcp_seq * tcpseqp)2012 nfsrv_getsockseqnum(struct socket *so, tcp_seq *tcpseqp)
2013 {
2014 tcp_seq maxseq, unaseq;
2015 u_int sbcc;
2016 int error;
2017
2018 sbcc = so->so_snd.sb_cc;
2019 error = nfsrv_getsocksndseq(so, &maxseq, &unaseq);
2020 if (error)
2021 return (0);
2022 /*
2023 * Set the seq# to a value that will
2024 * be at least the end of the reply.
2025 * When this sequence# is acknowledged
2026 * by the client, the client has received
2027 * the reply.
2028 */
2029 *tcpseqp = sbcc + maxseq;
2030 return (1);
2031 }
2032
2033 void
nfsd_init(void)2034 nfsd_init(void)
2035 {
2036 int i;
2037 static int inited = 0;
2038
2039 if (inited)
2040 return;
2041 inited = 1;
2042
2043 /*
2044 * Initialize client queues. Don't free/reinitialize
2045 * them when nfsds are restarted.
2046 */
2047 for (i = 0; i < NFSCLIENTHASHSIZE; i++)
2048 LIST_INIT(&nfsclienthash[i]);
2049 for (i = 0; i < NFSLOCKHASHSIZE; i++)
2050 LIST_INIT(&nfslockhash[i]);
2051
2052 /* and the v2 pubfh should be all zeros */
2053 NFSBZERO(nfs_v2pubfh, NFSX_V2FH);
2054 }
2055
2056 /*
2057 * Check the v4 root exports.
2058 * Return 0 if ok, 1 otherwise.
2059 */
2060 int
nfsd_checkrootexp(struct nfsrv_descript * nd)2061 nfsd_checkrootexp(struct nfsrv_descript *nd)
2062 {
2063
2064 if ((nd->nd_flag & (ND_GSS | ND_EXAUTHSYS)) == ND_EXAUTHSYS)
2065 return (0);
2066 if ((nd->nd_flag & (ND_GSSINTEGRITY | ND_EXGSSINTEGRITY)) ==
2067 (ND_GSSINTEGRITY | ND_EXGSSINTEGRITY))
2068 return (0);
2069 if ((nd->nd_flag & (ND_GSSPRIVACY | ND_EXGSSPRIVACY)) ==
2070 (ND_GSSPRIVACY | ND_EXGSSPRIVACY))
2071 return (0);
2072 if ((nd->nd_flag & (ND_GSS | ND_GSSINTEGRITY | ND_GSSPRIVACY |
2073 ND_EXGSS)) == (ND_GSS | ND_EXGSS))
2074 return (0);
2075 return (1);
2076 }
2077
2078