1 /*-
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 */
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
36
37 /*
38 * These functions support the macros and help fiddle mbuf chains for
39 * the nfs op functions. They do things like create the rpc header and
40 * copy data between mbuf chains and uio lists.
41 */
42 #include <fs/nfs/nfsport.h>
43
44 extern u_int32_t newnfs_true, newnfs_false;
45 extern int nfs_pubfhset;
46 extern struct nfsclienthashhead *nfsclienthash;
47 extern int nfsrv_clienthashsize;
48 extern struct nfslockhashhead *nfslockhash;
49 extern int nfsrv_lockhashsize;
50 extern struct nfssessionhash *nfssessionhash;
51 extern int nfsrv_sessionhashsize;
52 extern int nfsrv_useacl;
53 extern uid_t nfsrv_defaultuid;
54 extern gid_t nfsrv_defaultgid;
55
56 char nfs_v2pubfh[NFSX_V2FH];
57 static nfstype newnfsv2_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK,
58 NFNON, NFCHR, NFNON };
59 extern nfstype nfsv34_type[9];
60
61 static u_int32_t nfsrv_isannfserr(u_int32_t);
62
63 SYSCTL_DECL(_vfs_nfsd);
64
65 static int enable_checkutf8 = 1;
66 SYSCTL_INT(_vfs_nfsd, OID_AUTO, enable_checkutf8, CTLFLAG_RW,
67 &enable_checkutf8, 0,
68 "Enable the NFSv4 check for the UTF8 compliant name required by rfc3530");
69
70 static int enable_nobodycheck = 1;
71 SYSCTL_INT(_vfs_nfsd, OID_AUTO, enable_nobodycheck, CTLFLAG_RW,
72 &enable_nobodycheck, 0,
73 "Enable the NFSv4 check when setting user nobody as owner");
74
75 static int enable_nogroupcheck = 1;
76 SYSCTL_INT(_vfs_nfsd, OID_AUTO, enable_nogroupcheck, CTLFLAG_RW,
77 &enable_nogroupcheck, 0,
78 "Enable the NFSv4 check when setting group nogroup as owner");
79
80 static char nfsrv_hexdigit(char, int *);
81
82 /*
83 * Maps errno values to nfs error numbers.
84 * Use NFSERR_IO as the catch all for ones not specifically defined in
85 * RFC 1094. (It now includes the errors added for NFSv3.)
86 */
87 static u_char nfsrv_v2errmap[NFSERR_REMOTE] = {
88 NFSERR_PERM, NFSERR_NOENT, NFSERR_IO, NFSERR_IO, NFSERR_IO,
89 NFSERR_NXIO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
90 NFSERR_IO, NFSERR_IO, NFSERR_ACCES, NFSERR_IO, NFSERR_IO,
91 NFSERR_IO, NFSERR_EXIST, NFSERR_XDEV, NFSERR_NODEV, NFSERR_NOTDIR,
92 NFSERR_ISDIR, NFSERR_INVAL, NFSERR_IO, NFSERR_IO, NFSERR_IO,
93 NFSERR_IO, NFSERR_FBIG, NFSERR_NOSPC, NFSERR_IO, NFSERR_ROFS,
94 NFSERR_MLINK, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
95 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
96 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
97 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
98 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
99 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO,
100 NFSERR_IO, NFSERR_IO, NFSERR_NAMETOL, NFSERR_IO, NFSERR_IO,
101 NFSERR_NOTEMPTY, NFSERR_IO, NFSERR_IO, NFSERR_DQUOT, NFSERR_STALE,
102 NFSERR_REMOTE,
103 };
104
105 /*
106 * Maps errno values to nfs error numbers.
107 * Although it is not obvious whether or not NFS clients really care if
108 * a returned error value is in the specified list for the procedure, the
109 * safest thing to do is filter them appropriately. For Version 2, the
110 * X/Open XNFS document is the only specification that defines error values
111 * for each RPC (The RFC simply lists all possible error values for all RPCs),
112 * so I have decided to not do this for Version 2.
113 * The first entry is the default error return and the rest are the valid
114 * errors for that RPC in increasing numeric order.
115 */
116 static short nfsv3err_null[] = {
117 0,
118 0,
119 };
120
121 static short nfsv3err_getattr[] = {
122 NFSERR_IO,
123 NFSERR_IO,
124 NFSERR_STALE,
125 NFSERR_BADHANDLE,
126 NFSERR_SERVERFAULT,
127 NFSERR_DELAY,
128 0,
129 };
130
131 static short nfsv3err_setattr[] = {
132 NFSERR_IO,
133 NFSERR_ACCES,
134 NFSERR_PERM,
135 NFSERR_IO,
136 NFSERR_INVAL,
137 NFSERR_NOSPC,
138 NFSERR_ROFS,
139 NFSERR_DQUOT,
140 NFSERR_STALE,
141 NFSERR_BADHANDLE,
142 NFSERR_NOT_SYNC,
143 NFSERR_SERVERFAULT,
144 NFSERR_DELAY,
145 0,
146 };
147
148 static short nfsv3err_lookup[] = {
149 NFSERR_IO,
150 NFSERR_NOENT,
151 NFSERR_ACCES,
152 NFSERR_NAMETOL,
153 NFSERR_IO,
154 NFSERR_NOTDIR,
155 NFSERR_STALE,
156 NFSERR_BADHANDLE,
157 NFSERR_SERVERFAULT,
158 NFSERR_DELAY,
159 0,
160 };
161
162 static short nfsv3err_access[] = {
163 NFSERR_IO,
164 NFSERR_IO,
165 NFSERR_STALE,
166 NFSERR_BADHANDLE,
167 NFSERR_SERVERFAULT,
168 NFSERR_DELAY,
169 0,
170 };
171
172 static short nfsv3err_readlink[] = {
173 NFSERR_IO,
174 NFSERR_IO,
175 NFSERR_ACCES,
176 NFSERR_INVAL,
177 NFSERR_STALE,
178 NFSERR_BADHANDLE,
179 NFSERR_NOTSUPP,
180 NFSERR_SERVERFAULT,
181 NFSERR_DELAY,
182 0,
183 };
184
185 static short nfsv3err_read[] = {
186 NFSERR_IO,
187 NFSERR_IO,
188 NFSERR_NXIO,
189 NFSERR_ACCES,
190 NFSERR_INVAL,
191 NFSERR_STALE,
192 NFSERR_BADHANDLE,
193 NFSERR_SERVERFAULT,
194 NFSERR_DELAY,
195 0,
196 };
197
198 static short nfsv3err_write[] = {
199 NFSERR_IO,
200 NFSERR_IO,
201 NFSERR_ACCES,
202 NFSERR_NOSPC,
203 NFSERR_INVAL,
204 NFSERR_FBIG,
205 NFSERR_ROFS,
206 NFSERR_DQUOT,
207 NFSERR_STALE,
208 NFSERR_BADHANDLE,
209 NFSERR_SERVERFAULT,
210 NFSERR_DELAY,
211 0,
212 };
213
214 static short nfsv3err_create[] = {
215 NFSERR_IO,
216 NFSERR_EXIST,
217 NFSERR_NAMETOL,
218 NFSERR_ACCES,
219 NFSERR_IO,
220 NFSERR_NOTDIR,
221 NFSERR_NOSPC,
222 NFSERR_ROFS,
223 NFSERR_DQUOT,
224 NFSERR_STALE,
225 NFSERR_BADHANDLE,
226 NFSERR_NOTSUPP,
227 NFSERR_SERVERFAULT,
228 NFSERR_DELAY,
229 0,
230 };
231
232 static short nfsv3err_mkdir[] = {
233 NFSERR_IO,
234 NFSERR_EXIST,
235 NFSERR_ACCES,
236 NFSERR_NAMETOL,
237 NFSERR_IO,
238 NFSERR_NOTDIR,
239 NFSERR_NOSPC,
240 NFSERR_ROFS,
241 NFSERR_DQUOT,
242 NFSERR_STALE,
243 NFSERR_BADHANDLE,
244 NFSERR_NOTSUPP,
245 NFSERR_SERVERFAULT,
246 NFSERR_DELAY,
247 0,
248 };
249
250 static short nfsv3err_symlink[] = {
251 NFSERR_IO,
252 NFSERR_ACCES,
253 NFSERR_EXIST,
254 NFSERR_NAMETOL,
255 NFSERR_NOSPC,
256 NFSERR_IO,
257 NFSERR_NOTDIR,
258 NFSERR_ROFS,
259 NFSERR_DQUOT,
260 NFSERR_STALE,
261 NFSERR_BADHANDLE,
262 NFSERR_NOTSUPP,
263 NFSERR_SERVERFAULT,
264 NFSERR_DELAY,
265 0,
266 };
267
268 static short nfsv3err_mknod[] = {
269 NFSERR_IO,
270 NFSERR_ACCES,
271 NFSERR_EXIST,
272 NFSERR_NAMETOL,
273 NFSERR_NOSPC,
274 NFSERR_IO,
275 NFSERR_NOTDIR,
276 NFSERR_ROFS,
277 NFSERR_DQUOT,
278 NFSERR_STALE,
279 NFSERR_BADHANDLE,
280 NFSERR_NOTSUPP,
281 NFSERR_SERVERFAULT,
282 NFSERR_DELAY,
283 NFSERR_BADTYPE,
284 0,
285 };
286
287 static short nfsv3err_remove[] = {
288 NFSERR_IO,
289 NFSERR_NOENT,
290 NFSERR_ACCES,
291 NFSERR_NAMETOL,
292 NFSERR_IO,
293 NFSERR_NOTDIR,
294 NFSERR_ROFS,
295 NFSERR_STALE,
296 NFSERR_BADHANDLE,
297 NFSERR_SERVERFAULT,
298 NFSERR_DELAY,
299 0,
300 };
301
302 static short nfsv3err_rmdir[] = {
303 NFSERR_IO,
304 NFSERR_NOENT,
305 NFSERR_ACCES,
306 NFSERR_NOTDIR,
307 NFSERR_NAMETOL,
308 NFSERR_IO,
309 NFSERR_EXIST,
310 NFSERR_INVAL,
311 NFSERR_ROFS,
312 NFSERR_NOTEMPTY,
313 NFSERR_STALE,
314 NFSERR_BADHANDLE,
315 NFSERR_NOTSUPP,
316 NFSERR_SERVERFAULT,
317 NFSERR_DELAY,
318 0,
319 };
320
321 static short nfsv3err_rename[] = {
322 NFSERR_IO,
323 NFSERR_NOENT,
324 NFSERR_ACCES,
325 NFSERR_EXIST,
326 NFSERR_NAMETOL,
327 NFSERR_XDEV,
328 NFSERR_IO,
329 NFSERR_NOTDIR,
330 NFSERR_ISDIR,
331 NFSERR_INVAL,
332 NFSERR_NOSPC,
333 NFSERR_ROFS,
334 NFSERR_MLINK,
335 NFSERR_NOTEMPTY,
336 NFSERR_DQUOT,
337 NFSERR_STALE,
338 NFSERR_BADHANDLE,
339 NFSERR_NOTSUPP,
340 NFSERR_SERVERFAULT,
341 NFSERR_DELAY,
342 0,
343 };
344
345 static short nfsv3err_link[] = {
346 NFSERR_IO,
347 NFSERR_ACCES,
348 NFSERR_EXIST,
349 NFSERR_NAMETOL,
350 NFSERR_IO,
351 NFSERR_XDEV,
352 NFSERR_NOTDIR,
353 NFSERR_INVAL,
354 NFSERR_NOSPC,
355 NFSERR_ROFS,
356 NFSERR_MLINK,
357 NFSERR_DQUOT,
358 NFSERR_STALE,
359 NFSERR_BADHANDLE,
360 NFSERR_NOTSUPP,
361 NFSERR_SERVERFAULT,
362 NFSERR_DELAY,
363 0,
364 };
365
366 static short nfsv3err_readdir[] = {
367 NFSERR_IO,
368 NFSERR_ACCES,
369 NFSERR_NOTDIR,
370 NFSERR_IO,
371 NFSERR_STALE,
372 NFSERR_BADHANDLE,
373 NFSERR_BAD_COOKIE,
374 NFSERR_TOOSMALL,
375 NFSERR_SERVERFAULT,
376 NFSERR_DELAY,
377 0,
378 };
379
380 static short nfsv3err_readdirplus[] = {
381 NFSERR_IO,
382 NFSERR_ACCES,
383 NFSERR_NOTDIR,
384 NFSERR_IO,
385 NFSERR_STALE,
386 NFSERR_BADHANDLE,
387 NFSERR_BAD_COOKIE,
388 NFSERR_NOTSUPP,
389 NFSERR_TOOSMALL,
390 NFSERR_SERVERFAULT,
391 NFSERR_DELAY,
392 0,
393 };
394
395 static short nfsv3err_fsstat[] = {
396 NFSERR_IO,
397 NFSERR_IO,
398 NFSERR_STALE,
399 NFSERR_BADHANDLE,
400 NFSERR_SERVERFAULT,
401 NFSERR_DELAY,
402 0,
403 };
404
405 static short nfsv3err_fsinfo[] = {
406 NFSERR_STALE,
407 NFSERR_STALE,
408 NFSERR_BADHANDLE,
409 NFSERR_SERVERFAULT,
410 NFSERR_DELAY,
411 0,
412 };
413
414 static short nfsv3err_pathconf[] = {
415 NFSERR_STALE,
416 NFSERR_STALE,
417 NFSERR_BADHANDLE,
418 NFSERR_SERVERFAULT,
419 NFSERR_DELAY,
420 0,
421 };
422
423 static short nfsv3err_commit[] = {
424 NFSERR_IO,
425 NFSERR_IO,
426 NFSERR_STALE,
427 NFSERR_BADHANDLE,
428 NFSERR_SERVERFAULT,
429 NFSERR_DELAY,
430 0,
431 };
432
433 static short *nfsrv_v3errmap[] = {
434 nfsv3err_null,
435 nfsv3err_getattr,
436 nfsv3err_setattr,
437 nfsv3err_lookup,
438 nfsv3err_access,
439 nfsv3err_readlink,
440 nfsv3err_read,
441 nfsv3err_write,
442 nfsv3err_create,
443 nfsv3err_mkdir,
444 nfsv3err_symlink,
445 nfsv3err_mknod,
446 nfsv3err_remove,
447 nfsv3err_rmdir,
448 nfsv3err_rename,
449 nfsv3err_link,
450 nfsv3err_readdir,
451 nfsv3err_readdirplus,
452 nfsv3err_fsstat,
453 nfsv3err_fsinfo,
454 nfsv3err_pathconf,
455 nfsv3err_commit,
456 };
457
458 /*
459 * And the same for V4.
460 */
461 static short nfsv4err_null[] = {
462 0,
463 0,
464 };
465
466 static short nfsv4err_access[] = {
467 NFSERR_IO,
468 NFSERR_ACCES,
469 NFSERR_BADHANDLE,
470 NFSERR_BADXDR,
471 NFSERR_DELAY,
472 NFSERR_FHEXPIRED,
473 NFSERR_INVAL,
474 NFSERR_IO,
475 NFSERR_MOVED,
476 NFSERR_NOFILEHANDLE,
477 NFSERR_RESOURCE,
478 NFSERR_SERVERFAULT,
479 NFSERR_STALE,
480 0,
481 };
482
483 static short nfsv4err_close[] = {
484 NFSERR_EXPIRED,
485 NFSERR_ADMINREVOKED,
486 NFSERR_BADHANDLE,
487 NFSERR_BADSEQID,
488 NFSERR_BADSTATEID,
489 NFSERR_BADXDR,
490 NFSERR_DELAY,
491 NFSERR_EXPIRED,
492 NFSERR_FHEXPIRED,
493 NFSERR_INVAL,
494 NFSERR_ISDIR,
495 NFSERR_LEASEMOVED,
496 NFSERR_LOCKSHELD,
497 NFSERR_MOVED,
498 NFSERR_NOFILEHANDLE,
499 NFSERR_OLDSTATEID,
500 NFSERR_RESOURCE,
501 NFSERR_SERVERFAULT,
502 NFSERR_STALE,
503 NFSERR_STALESTATEID,
504 0,
505 };
506
507 static short nfsv4err_commit[] = {
508 NFSERR_IO,
509 NFSERR_ACCES,
510 NFSERR_BADHANDLE,
511 NFSERR_BADXDR,
512 NFSERR_FHEXPIRED,
513 NFSERR_INVAL,
514 NFSERR_IO,
515 NFSERR_ISDIR,
516 NFSERR_MOVED,
517 NFSERR_NOFILEHANDLE,
518 NFSERR_RESOURCE,
519 NFSERR_ROFS,
520 NFSERR_SERVERFAULT,
521 NFSERR_STALE,
522 0,
523 };
524
525 static short nfsv4err_create[] = {
526 NFSERR_IO,
527 NFSERR_ACCES,
528 NFSERR_ATTRNOTSUPP,
529 NFSERR_BADCHAR,
530 NFSERR_BADHANDLE,
531 NFSERR_BADNAME,
532 NFSERR_BADOWNER,
533 NFSERR_BADTYPE,
534 NFSERR_BADXDR,
535 NFSERR_DELAY,
536 NFSERR_DQUOT,
537 NFSERR_EXIST,
538 NFSERR_FHEXPIRED,
539 NFSERR_INVAL,
540 NFSERR_IO,
541 NFSERR_MOVED,
542 NFSERR_NAMETOL,
543 NFSERR_NOFILEHANDLE,
544 NFSERR_NOSPC,
545 NFSERR_NOTDIR,
546 NFSERR_PERM,
547 NFSERR_RESOURCE,
548 NFSERR_ROFS,
549 NFSERR_SERVERFAULT,
550 NFSERR_STALE,
551 0,
552 };
553
554 static short nfsv4err_delegpurge[] = {
555 NFSERR_SERVERFAULT,
556 NFSERR_BADXDR,
557 NFSERR_NOTSUPP,
558 NFSERR_LEASEMOVED,
559 NFSERR_MOVED,
560 NFSERR_RESOURCE,
561 NFSERR_SERVERFAULT,
562 NFSERR_STALECLIENTID,
563 0,
564 };
565
566 static short nfsv4err_delegreturn[] = {
567 NFSERR_SERVERFAULT,
568 NFSERR_ADMINREVOKED,
569 NFSERR_BADSTATEID,
570 NFSERR_BADXDR,
571 NFSERR_EXPIRED,
572 NFSERR_INVAL,
573 NFSERR_LEASEMOVED,
574 NFSERR_MOVED,
575 NFSERR_NOFILEHANDLE,
576 NFSERR_NOTSUPP,
577 NFSERR_OLDSTATEID,
578 NFSERR_RESOURCE,
579 NFSERR_SERVERFAULT,
580 NFSERR_STALE,
581 NFSERR_STALESTATEID,
582 0,
583 };
584
585 static short nfsv4err_getattr[] = {
586 NFSERR_IO,
587 NFSERR_ACCES,
588 NFSERR_BADHANDLE,
589 NFSERR_BADXDR,
590 NFSERR_DELAY,
591 NFSERR_FHEXPIRED,
592 NFSERR_INVAL,
593 NFSERR_IO,
594 NFSERR_MOVED,
595 NFSERR_NOFILEHANDLE,
596 NFSERR_RESOURCE,
597 NFSERR_SERVERFAULT,
598 NFSERR_STALE,
599 0,
600 };
601
602 static short nfsv4err_getfh[] = {
603 NFSERR_BADHANDLE,
604 NFSERR_BADHANDLE,
605 NFSERR_FHEXPIRED,
606 NFSERR_MOVED,
607 NFSERR_NOFILEHANDLE,
608 NFSERR_RESOURCE,
609 NFSERR_SERVERFAULT,
610 NFSERR_STALE,
611 0,
612 };
613
614 static short nfsv4err_link[] = {
615 NFSERR_IO,
616 NFSERR_ACCES,
617 NFSERR_BADCHAR,
618 NFSERR_BADHANDLE,
619 NFSERR_BADNAME,
620 NFSERR_BADXDR,
621 NFSERR_DELAY,
622 NFSERR_DQUOT,
623 NFSERR_EXIST,
624 NFSERR_FHEXPIRED,
625 NFSERR_FILEOPEN,
626 NFSERR_INVAL,
627 NFSERR_IO,
628 NFSERR_ISDIR,
629 NFSERR_MLINK,
630 NFSERR_MOVED,
631 NFSERR_NAMETOL,
632 NFSERR_NOENT,
633 NFSERR_NOFILEHANDLE,
634 NFSERR_NOSPC,
635 NFSERR_NOTDIR,
636 NFSERR_NOTSUPP,
637 NFSERR_RESOURCE,
638 NFSERR_ROFS,
639 NFSERR_SERVERFAULT,
640 NFSERR_STALE,
641 NFSERR_WRONGSEC,
642 NFSERR_XDEV,
643 0,
644 };
645
646 static short nfsv4err_lock[] = {
647 NFSERR_SERVERFAULT,
648 NFSERR_ACCES,
649 NFSERR_ADMINREVOKED,
650 NFSERR_BADHANDLE,
651 NFSERR_BADRANGE,
652 NFSERR_BADSEQID,
653 NFSERR_BADSTATEID,
654 NFSERR_BADXDR,
655 NFSERR_DEADLOCK,
656 NFSERR_DELAY,
657 NFSERR_DENIED,
658 NFSERR_EXPIRED,
659 NFSERR_FHEXPIRED,
660 NFSERR_GRACE,
661 NFSERR_INVAL,
662 NFSERR_ISDIR,
663 NFSERR_LEASEMOVED,
664 NFSERR_LOCKNOTSUPP,
665 NFSERR_LOCKRANGE,
666 NFSERR_MOVED,
667 NFSERR_NOFILEHANDLE,
668 NFSERR_NOGRACE,
669 NFSERR_OLDSTATEID,
670 NFSERR_OPENMODE,
671 NFSERR_RECLAIMBAD,
672 NFSERR_RECLAIMCONFLICT,
673 NFSERR_RESOURCE,
674 NFSERR_SERVERFAULT,
675 NFSERR_STALE,
676 NFSERR_STALECLIENTID,
677 NFSERR_STALESTATEID,
678 0,
679 };
680
681 static short nfsv4err_lockt[] = {
682 NFSERR_SERVERFAULT,
683 NFSERR_ACCES,
684 NFSERR_BADHANDLE,
685 NFSERR_BADRANGE,
686 NFSERR_BADXDR,
687 NFSERR_DELAY,
688 NFSERR_DENIED,
689 NFSERR_FHEXPIRED,
690 NFSERR_GRACE,
691 NFSERR_INVAL,
692 NFSERR_ISDIR,
693 NFSERR_LEASEMOVED,
694 NFSERR_LOCKRANGE,
695 NFSERR_MOVED,
696 NFSERR_NOFILEHANDLE,
697 NFSERR_RESOURCE,
698 NFSERR_SERVERFAULT,
699 NFSERR_STALE,
700 NFSERR_STALECLIENTID,
701 0,
702 };
703
704 static short nfsv4err_locku[] = {
705 NFSERR_SERVERFAULT,
706 NFSERR_ACCES,
707 NFSERR_ADMINREVOKED,
708 NFSERR_BADHANDLE,
709 NFSERR_BADRANGE,
710 NFSERR_BADSEQID,
711 NFSERR_BADSTATEID,
712 NFSERR_BADXDR,
713 NFSERR_EXPIRED,
714 NFSERR_FHEXPIRED,
715 NFSERR_GRACE,
716 NFSERR_INVAL,
717 NFSERR_ISDIR,
718 NFSERR_LEASEMOVED,
719 NFSERR_LOCKRANGE,
720 NFSERR_MOVED,
721 NFSERR_NOFILEHANDLE,
722 NFSERR_OLDSTATEID,
723 NFSERR_RESOURCE,
724 NFSERR_SERVERFAULT,
725 NFSERR_STALE,
726 NFSERR_STALESTATEID,
727 0,
728 };
729
730 static short nfsv4err_lookup[] = {
731 NFSERR_IO,
732 NFSERR_ACCES,
733 NFSERR_BADCHAR,
734 NFSERR_BADHANDLE,
735 NFSERR_BADNAME,
736 NFSERR_BADXDR,
737 NFSERR_FHEXPIRED,
738 NFSERR_INVAL,
739 NFSERR_IO,
740 NFSERR_MOVED,
741 NFSERR_NAMETOL,
742 NFSERR_NOENT,
743 NFSERR_NOFILEHANDLE,
744 NFSERR_NOTDIR,
745 NFSERR_RESOURCE,
746 NFSERR_SERVERFAULT,
747 NFSERR_STALE,
748 NFSERR_SYMLINK,
749 NFSERR_WRONGSEC,
750 0,
751 };
752
753 static short nfsv4err_lookupp[] = {
754 NFSERR_IO,
755 NFSERR_ACCES,
756 NFSERR_BADHANDLE,
757 NFSERR_FHEXPIRED,
758 NFSERR_IO,
759 NFSERR_MOVED,
760 NFSERR_NOENT,
761 NFSERR_NOFILEHANDLE,
762 NFSERR_NOTDIR,
763 NFSERR_RESOURCE,
764 NFSERR_SERVERFAULT,
765 NFSERR_STALE,
766 0,
767 };
768
769 static short nfsv4err_nverify[] = {
770 NFSERR_IO,
771 NFSERR_ACCES,
772 NFSERR_ATTRNOTSUPP,
773 NFSERR_BADCHAR,
774 NFSERR_BADHANDLE,
775 NFSERR_BADXDR,
776 NFSERR_DELAY,
777 NFSERR_FHEXPIRED,
778 NFSERR_INVAL,
779 NFSERR_IO,
780 NFSERR_MOVED,
781 NFSERR_NOFILEHANDLE,
782 NFSERR_RESOURCE,
783 NFSERR_SAME,
784 NFSERR_SERVERFAULT,
785 NFSERR_STALE,
786 0,
787 };
788
789 static short nfsv4err_open[] = {
790 NFSERR_IO,
791 NFSERR_ACCES,
792 NFSERR_ADMINREVOKED,
793 NFSERR_ATTRNOTSUPP,
794 NFSERR_BADCHAR,
795 NFSERR_BADHANDLE,
796 NFSERR_BADNAME,
797 NFSERR_BADOWNER,
798 NFSERR_BADSEQID,
799 NFSERR_BADXDR,
800 NFSERR_DELAY,
801 NFSERR_DQUOT,
802 NFSERR_EXIST,
803 NFSERR_EXPIRED,
804 NFSERR_FHEXPIRED,
805 NFSERR_GRACE,
806 NFSERR_IO,
807 NFSERR_INVAL,
808 NFSERR_ISDIR,
809 NFSERR_LEASEMOVED,
810 NFSERR_MOVED,
811 NFSERR_NAMETOL,
812 NFSERR_NOENT,
813 NFSERR_NOFILEHANDLE,
814 NFSERR_NOGRACE,
815 NFSERR_NOSPC,
816 NFSERR_NOTDIR,
817 NFSERR_NOTSUPP,
818 NFSERR_PERM,
819 NFSERR_RECLAIMBAD,
820 NFSERR_RECLAIMCONFLICT,
821 NFSERR_RESOURCE,
822 NFSERR_ROFS,
823 NFSERR_SERVERFAULT,
824 NFSERR_SHAREDENIED,
825 NFSERR_STALE,
826 NFSERR_STALECLIENTID,
827 NFSERR_SYMLINK,
828 NFSERR_WRONGSEC,
829 0,
830 };
831
832 static short nfsv4err_openattr[] = {
833 NFSERR_IO,
834 NFSERR_ACCES,
835 NFSERR_BADHANDLE,
836 NFSERR_BADXDR,
837 NFSERR_DELAY,
838 NFSERR_DQUOT,
839 NFSERR_FHEXPIRED,
840 NFSERR_IO,
841 NFSERR_MOVED,
842 NFSERR_NOENT,
843 NFSERR_NOFILEHANDLE,
844 NFSERR_NOSPC,
845 NFSERR_NOTSUPP,
846 NFSERR_RESOURCE,
847 NFSERR_ROFS,
848 NFSERR_SERVERFAULT,
849 NFSERR_STALE,
850 0,
851 };
852
853 static short nfsv4err_openconfirm[] = {
854 NFSERR_SERVERFAULT,
855 NFSERR_ADMINREVOKED,
856 NFSERR_BADHANDLE,
857 NFSERR_BADSEQID,
858 NFSERR_BADSTATEID,
859 NFSERR_BADXDR,
860 NFSERR_EXPIRED,
861 NFSERR_FHEXPIRED,
862 NFSERR_INVAL,
863 NFSERR_ISDIR,
864 NFSERR_MOVED,
865 NFSERR_NOFILEHANDLE,
866 NFSERR_OLDSTATEID,
867 NFSERR_RESOURCE,
868 NFSERR_SERVERFAULT,
869 NFSERR_STALE,
870 NFSERR_STALESTATEID,
871 0,
872 };
873
874 static short nfsv4err_opendowngrade[] = {
875 NFSERR_SERVERFAULT,
876 NFSERR_ADMINREVOKED,
877 NFSERR_BADHANDLE,
878 NFSERR_BADSEQID,
879 NFSERR_BADSTATEID,
880 NFSERR_BADXDR,
881 NFSERR_EXPIRED,
882 NFSERR_FHEXPIRED,
883 NFSERR_INVAL,
884 NFSERR_MOVED,
885 NFSERR_NOFILEHANDLE,
886 NFSERR_OLDSTATEID,
887 NFSERR_RESOURCE,
888 NFSERR_SERVERFAULT,
889 NFSERR_STALE,
890 NFSERR_STALESTATEID,
891 0,
892 };
893
894 static short nfsv4err_putfh[] = {
895 NFSERR_SERVERFAULT,
896 NFSERR_BADHANDLE,
897 NFSERR_BADXDR,
898 NFSERR_FHEXPIRED,
899 NFSERR_MOVED,
900 NFSERR_RESOURCE,
901 NFSERR_SERVERFAULT,
902 NFSERR_STALE,
903 NFSERR_WRONGSEC,
904 0,
905 };
906
907 static short nfsv4err_putpubfh[] = {
908 NFSERR_SERVERFAULT,
909 NFSERR_RESOURCE,
910 NFSERR_SERVERFAULT,
911 NFSERR_WRONGSEC,
912 0,
913 };
914
915 static short nfsv4err_putrootfh[] = {
916 NFSERR_SERVERFAULT,
917 NFSERR_RESOURCE,
918 NFSERR_SERVERFAULT,
919 NFSERR_WRONGSEC,
920 0,
921 };
922
923 static short nfsv4err_read[] = {
924 NFSERR_IO,
925 NFSERR_ACCES,
926 NFSERR_ADMINREVOKED,
927 NFSERR_BADHANDLE,
928 NFSERR_BADSTATEID,
929 NFSERR_BADXDR,
930 NFSERR_DELAY,
931 NFSERR_EXPIRED,
932 NFSERR_FHEXPIRED,
933 NFSERR_GRACE,
934 NFSERR_IO,
935 NFSERR_INVAL,
936 NFSERR_ISDIR,
937 NFSERR_LEASEMOVED,
938 NFSERR_LOCKED,
939 NFSERR_MOVED,
940 NFSERR_NOFILEHANDLE,
941 NFSERR_NXIO,
942 NFSERR_OLDSTATEID,
943 NFSERR_OPENMODE,
944 NFSERR_RESOURCE,
945 NFSERR_SERVERFAULT,
946 NFSERR_STALE,
947 NFSERR_STALESTATEID,
948 0,
949 };
950
951 static short nfsv4err_readdir[] = {
952 NFSERR_IO,
953 NFSERR_ACCES,
954 NFSERR_BADHANDLE,
955 NFSERR_BAD_COOKIE,
956 NFSERR_BADXDR,
957 NFSERR_DELAY,
958 NFSERR_FHEXPIRED,
959 NFSERR_INVAL,
960 NFSERR_IO,
961 NFSERR_MOVED,
962 NFSERR_NOFILEHANDLE,
963 NFSERR_NOTDIR,
964 NFSERR_NOTSAME,
965 NFSERR_RESOURCE,
966 NFSERR_SERVERFAULT,
967 NFSERR_STALE,
968 NFSERR_TOOSMALL,
969 0,
970 };
971
972 static short nfsv4err_readlink[] = {
973 NFSERR_IO,
974 NFSERR_ACCES,
975 NFSERR_BADHANDLE,
976 NFSERR_DELAY,
977 NFSERR_FHEXPIRED,
978 NFSERR_INVAL,
979 NFSERR_IO,
980 NFSERR_ISDIR,
981 NFSERR_MOVED,
982 NFSERR_NOFILEHANDLE,
983 NFSERR_NOTSUPP,
984 NFSERR_RESOURCE,
985 NFSERR_SERVERFAULT,
986 NFSERR_STALE,
987 0,
988 };
989
990 static short nfsv4err_remove[] = {
991 NFSERR_IO,
992 NFSERR_ACCES,
993 NFSERR_BADCHAR,
994 NFSERR_BADHANDLE,
995 NFSERR_BADNAME,
996 NFSERR_BADXDR,
997 NFSERR_DELAY,
998 NFSERR_FHEXPIRED,
999 NFSERR_FILEOPEN,
1000 NFSERR_INVAL,
1001 NFSERR_IO,
1002 NFSERR_MOVED,
1003 NFSERR_NAMETOL,
1004 NFSERR_NOENT,
1005 NFSERR_NOFILEHANDLE,
1006 NFSERR_NOTDIR,
1007 NFSERR_NOTEMPTY,
1008 NFSERR_RESOURCE,
1009 NFSERR_ROFS,
1010 NFSERR_SERVERFAULT,
1011 NFSERR_STALE,
1012 0,
1013 };
1014
1015 static short nfsv4err_rename[] = {
1016 NFSERR_IO,
1017 NFSERR_ACCES,
1018 NFSERR_BADCHAR,
1019 NFSERR_BADHANDLE,
1020 NFSERR_BADNAME,
1021 NFSERR_BADXDR,
1022 NFSERR_DELAY,
1023 NFSERR_DQUOT,
1024 NFSERR_EXIST,
1025 NFSERR_FHEXPIRED,
1026 NFSERR_FILEOPEN,
1027 NFSERR_INVAL,
1028 NFSERR_IO,
1029 NFSERR_MOVED,
1030 NFSERR_NAMETOL,
1031 NFSERR_NOENT,
1032 NFSERR_NOFILEHANDLE,
1033 NFSERR_NOSPC,
1034 NFSERR_NOTDIR,
1035 NFSERR_NOTEMPTY,
1036 NFSERR_RESOURCE,
1037 NFSERR_ROFS,
1038 NFSERR_SERVERFAULT,
1039 NFSERR_STALE,
1040 NFSERR_WRONGSEC,
1041 NFSERR_XDEV,
1042 0,
1043 };
1044
1045 static short nfsv4err_renew[] = {
1046 NFSERR_SERVERFAULT,
1047 NFSERR_ACCES,
1048 NFSERR_ADMINREVOKED,
1049 NFSERR_BADXDR,
1050 NFSERR_CBPATHDOWN,
1051 NFSERR_EXPIRED,
1052 NFSERR_LEASEMOVED,
1053 NFSERR_RESOURCE,
1054 NFSERR_SERVERFAULT,
1055 NFSERR_STALECLIENTID,
1056 0,
1057 };
1058
1059 static short nfsv4err_restorefh[] = {
1060 NFSERR_SERVERFAULT,
1061 NFSERR_BADHANDLE,
1062 NFSERR_FHEXPIRED,
1063 NFSERR_MOVED,
1064 NFSERR_RESOURCE,
1065 NFSERR_RESTOREFH,
1066 NFSERR_SERVERFAULT,
1067 NFSERR_STALE,
1068 NFSERR_WRONGSEC,
1069 0,
1070 };
1071
1072 static short nfsv4err_savefh[] = {
1073 NFSERR_SERVERFAULT,
1074 NFSERR_BADHANDLE,
1075 NFSERR_FHEXPIRED,
1076 NFSERR_MOVED,
1077 NFSERR_NOFILEHANDLE,
1078 NFSERR_RESOURCE,
1079 NFSERR_SERVERFAULT,
1080 NFSERR_STALE,
1081 0,
1082 };
1083
1084 static short nfsv4err_secinfo[] = {
1085 NFSERR_SERVERFAULT,
1086 NFSERR_ACCES,
1087 NFSERR_BADCHAR,
1088 NFSERR_BADHANDLE,
1089 NFSERR_BADNAME,
1090 NFSERR_BADXDR,
1091 NFSERR_FHEXPIRED,
1092 NFSERR_INVAL,
1093 NFSERR_MOVED,
1094 NFSERR_NAMETOL,
1095 NFSERR_NOENT,
1096 NFSERR_NOFILEHANDLE,
1097 NFSERR_NOTDIR,
1098 NFSERR_RESOURCE,
1099 NFSERR_SERVERFAULT,
1100 NFSERR_STALE,
1101 0,
1102 };
1103
1104 static short nfsv4err_setattr[] = {
1105 NFSERR_IO,
1106 NFSERR_ACCES,
1107 NFSERR_ADMINREVOKED,
1108 NFSERR_ATTRNOTSUPP,
1109 NFSERR_BADCHAR,
1110 NFSERR_BADHANDLE,
1111 NFSERR_BADOWNER,
1112 NFSERR_BADSTATEID,
1113 NFSERR_BADXDR,
1114 NFSERR_DELAY,
1115 NFSERR_DQUOT,
1116 NFSERR_EXPIRED,
1117 NFSERR_FBIG,
1118 NFSERR_FHEXPIRED,
1119 NFSERR_GRACE,
1120 NFSERR_INVAL,
1121 NFSERR_IO,
1122 NFSERR_ISDIR,
1123 NFSERR_LOCKED,
1124 NFSERR_MOVED,
1125 NFSERR_NOFILEHANDLE,
1126 NFSERR_NOSPC,
1127 NFSERR_OLDSTATEID,
1128 NFSERR_OPENMODE,
1129 NFSERR_PERM,
1130 NFSERR_RESOURCE,
1131 NFSERR_ROFS,
1132 NFSERR_SERVERFAULT,
1133 NFSERR_STALE,
1134 NFSERR_STALESTATEID,
1135 0,
1136 };
1137
1138 static short nfsv4err_setclientid[] = {
1139 NFSERR_SERVERFAULT,
1140 NFSERR_BADXDR,
1141 NFSERR_CLIDINUSE,
1142 NFSERR_INVAL,
1143 NFSERR_RESOURCE,
1144 NFSERR_SERVERFAULT,
1145 NFSERR_WRONGSEC,
1146 0,
1147 };
1148
1149 static short nfsv4err_setclientidconfirm[] = {
1150 NFSERR_SERVERFAULT,
1151 NFSERR_BADXDR,
1152 NFSERR_CLIDINUSE,
1153 NFSERR_RESOURCE,
1154 NFSERR_SERVERFAULT,
1155 NFSERR_STALECLIENTID,
1156 0,
1157 };
1158
1159 static short nfsv4err_verify[] = {
1160 NFSERR_SERVERFAULT,
1161 NFSERR_ACCES,
1162 NFSERR_ATTRNOTSUPP,
1163 NFSERR_BADCHAR,
1164 NFSERR_BADHANDLE,
1165 NFSERR_BADXDR,
1166 NFSERR_DELAY,
1167 NFSERR_FHEXPIRED,
1168 NFSERR_INVAL,
1169 NFSERR_MOVED,
1170 NFSERR_NOFILEHANDLE,
1171 NFSERR_NOTSAME,
1172 NFSERR_RESOURCE,
1173 NFSERR_SERVERFAULT,
1174 NFSERR_STALE,
1175 0,
1176 };
1177
1178 static short nfsv4err_write[] = {
1179 NFSERR_IO,
1180 NFSERR_ACCES,
1181 NFSERR_ADMINREVOKED,
1182 NFSERR_BADHANDLE,
1183 NFSERR_BADSTATEID,
1184 NFSERR_BADXDR,
1185 NFSERR_DELAY,
1186 NFSERR_DQUOT,
1187 NFSERR_EXPIRED,
1188 NFSERR_FBIG,
1189 NFSERR_FHEXPIRED,
1190 NFSERR_GRACE,
1191 NFSERR_INVAL,
1192 NFSERR_IO,
1193 NFSERR_ISDIR,
1194 NFSERR_LEASEMOVED,
1195 NFSERR_LOCKED,
1196 NFSERR_MOVED,
1197 NFSERR_NOFILEHANDLE,
1198 NFSERR_NOSPC,
1199 NFSERR_NXIO,
1200 NFSERR_OLDSTATEID,
1201 NFSERR_OPENMODE,
1202 NFSERR_RESOURCE,
1203 NFSERR_ROFS,
1204 NFSERR_SERVERFAULT,
1205 NFSERR_STALE,
1206 NFSERR_STALESTATEID,
1207 0,
1208 };
1209
1210 static short nfsv4err_releaselockowner[] = {
1211 NFSERR_SERVERFAULT,
1212 NFSERR_ADMINREVOKED,
1213 NFSERR_BADXDR,
1214 NFSERR_EXPIRED,
1215 NFSERR_LEASEMOVED,
1216 NFSERR_LOCKSHELD,
1217 NFSERR_RESOURCE,
1218 NFSERR_SERVERFAULT,
1219 NFSERR_STALECLIENTID,
1220 0,
1221 };
1222
1223 static short *nfsrv_v4errmap[] = {
1224 nfsv4err_null,
1225 nfsv4err_null,
1226 nfsv4err_null,
1227 nfsv4err_access,
1228 nfsv4err_close,
1229 nfsv4err_commit,
1230 nfsv4err_create,
1231 nfsv4err_delegpurge,
1232 nfsv4err_delegreturn,
1233 nfsv4err_getattr,
1234 nfsv4err_getfh,
1235 nfsv4err_link,
1236 nfsv4err_lock,
1237 nfsv4err_lockt,
1238 nfsv4err_locku,
1239 nfsv4err_lookup,
1240 nfsv4err_lookupp,
1241 nfsv4err_nverify,
1242 nfsv4err_open,
1243 nfsv4err_openattr,
1244 nfsv4err_openconfirm,
1245 nfsv4err_opendowngrade,
1246 nfsv4err_putfh,
1247 nfsv4err_putpubfh,
1248 nfsv4err_putrootfh,
1249 nfsv4err_read,
1250 nfsv4err_readdir,
1251 nfsv4err_readlink,
1252 nfsv4err_remove,
1253 nfsv4err_rename,
1254 nfsv4err_renew,
1255 nfsv4err_restorefh,
1256 nfsv4err_savefh,
1257 nfsv4err_secinfo,
1258 nfsv4err_setattr,
1259 nfsv4err_setclientid,
1260 nfsv4err_setclientidconfirm,
1261 nfsv4err_verify,
1262 nfsv4err_write,
1263 nfsv4err_releaselockowner,
1264 };
1265
1266 /*
1267 * A fiddled version of m_adj() that ensures null fill to a long
1268 * boundary and only trims off the back end
1269 */
1270 void
1271 nfsrv_adj(mbuf_t mp, int len, int nul)
1272 {
1273 mbuf_t m;
1274 int count, i;
1275 char *cp;
1276
1277 /*
1278 * Trim from tail. Scan the mbuf chain,
1279 * calculating its length and finding the last mbuf.
1280 * If the adjustment only affects this mbuf, then just
1281 * adjust and return. Otherwise, rescan and truncate
1282 * after the remaining size.
1283 */
1284 count = 0;
1285 m = mp;
1286 for (;;) {
1287 count += mbuf_len(m);
1288 if (mbuf_next(m) == NULL)
1289 break;
1290 m = mbuf_next(m);
1291 }
1292 if (mbuf_len(m) > len) {
1293 mbuf_setlen(m, mbuf_len(m) - len);
1294 if (nul > 0) {
1295 cp = NFSMTOD(m, caddr_t) + mbuf_len(m) - nul;
1296 for (i = 0; i < nul; i++)
1297 *cp++ = '\0';
1298 }
1299 return;
1300 }
1301 count -= len;
1302 if (count < 0)
1303 count = 0;
1304 /*
1305 * Correct length for chain is "count".
1306 * Find the mbuf with last data, adjust its length,
1307 * and toss data from remaining mbufs on chain.
1308 */
1309 for (m = mp; m; m = mbuf_next(m)) {
1310 if (mbuf_len(m) >= count) {
1311 mbuf_setlen(m, count);
1312 if (nul > 0) {
1313 cp = NFSMTOD(m, caddr_t) + mbuf_len(m) - nul;
1314 for (i = 0; i < nul; i++)
1315 *cp++ = '\0';
1316 }
1317 break;
1318 }
1319 count -= mbuf_len(m);
1320 }
1321 for (m = mbuf_next(m); m; m = mbuf_next(m))
1322 mbuf_setlen(m, 0);
1323 }
1324
1325 /*
1326 * Make these functions instead of macros, so that the kernel text size
1327 * doesn't get too big...
1328 */
1329 void
1330 nfsrv_wcc(struct nfsrv_descript *nd, int before_ret,
1331 struct nfsvattr *before_nvap, int after_ret, struct nfsvattr *after_nvap)
1332 {
1333 u_int32_t *tl;
1334
1335 if (before_ret) {
1336 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1337 *tl = newnfs_false;
1338 } else {
1339 NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
1340 *tl++ = newnfs_true;
1341 txdr_hyper(before_nvap->na_size, tl);
1342 tl += 2;
1343 txdr_nfsv3time(&(before_nvap->na_mtime), tl);
1344 tl += 2;
1345 txdr_nfsv3time(&(before_nvap->na_ctime), tl);
1346 }
1347 nfsrv_postopattr(nd, after_ret, after_nvap);
1348 }
1349
1350 void
1351 nfsrv_postopattr(struct nfsrv_descript *nd, int after_ret,
1352 struct nfsvattr *after_nvap)
1353 {
1354 u_int32_t *tl;
1355
1356 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1357 if (after_ret)
1358 *tl = newnfs_false;
1359 else {
1360 *tl = newnfs_true;
1361 nfsrv_fillattr(nd, after_nvap);
1362 }
1363 }
1364
1365 /*
1366 * Fill in file attributes for V2 and 3. For V4, call a separate
1367 * routine that sifts through all the attribute bits.
1368 */
1369 void
1370 nfsrv_fillattr(struct nfsrv_descript *nd, struct nfsvattr *nvap)
1371 {
1372 struct nfs_fattr *fp;
1373 int fattr_size;
1374
1375 /*
1376 * Build space for the attribute structure.
1377 */
1378 if (nd->nd_flag & ND_NFSV3)
1379 fattr_size = NFSX_V3FATTR;
1380 else
1381 fattr_size = NFSX_V2FATTR;
1382 NFSM_BUILD(fp, struct nfs_fattr *, fattr_size);
1383
1384 /*
1385 * Now just fill it all in.
1386 */
1387 fp->fa_nlink = txdr_unsigned(nvap->na_nlink);
1388 fp->fa_uid = txdr_unsigned(nvap->na_uid);
1389 fp->fa_gid = txdr_unsigned(nvap->na_gid);
1390 if (nd->nd_flag & ND_NFSV3) {
1391 fp->fa_type = vtonfsv34_type(nvap->na_type);
1392 fp->fa_mode = vtonfsv34_mode(nvap->na_mode);
1393 txdr_hyper(nvap->na_size, &fp->fa3_size);
1394 txdr_hyper(nvap->na_bytes, &fp->fa3_used);
1395 fp->fa3_rdev.specdata1 = txdr_unsigned(NFSMAJOR(nvap->na_rdev));
1396 fp->fa3_rdev.specdata2 = txdr_unsigned(NFSMINOR(nvap->na_rdev));
1397 fp->fa3_fsid.nfsuquad[0] = 0;
1398 fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(nvap->na_fsid);
1399 fp->fa3_fileid.nfsuquad[0] = 0;
1400 fp->fa3_fileid.nfsuquad[1] = txdr_unsigned(nvap->na_fileid);
1401 txdr_nfsv3time(&nvap->na_atime, &fp->fa3_atime);
1402 txdr_nfsv3time(&nvap->na_mtime, &fp->fa3_mtime);
1403 txdr_nfsv3time(&nvap->na_ctime, &fp->fa3_ctime);
1404 } else {
1405 fp->fa_type = vtonfsv2_type(nvap->na_type);
1406 fp->fa_mode = vtonfsv2_mode(nvap->na_type, nvap->na_mode);
1407 fp->fa2_size = txdr_unsigned(nvap->na_size);
1408 fp->fa2_blocksize = txdr_unsigned(nvap->na_blocksize);
1409 if (nvap->na_type == VFIFO)
1410 fp->fa2_rdev = 0xffffffff;
1411 else
1412 fp->fa2_rdev = txdr_unsigned(nvap->na_rdev);
1413 fp->fa2_blocks = txdr_unsigned(nvap->na_bytes / NFS_FABLKSIZE);
1414 fp->fa2_fsid = txdr_unsigned(nvap->na_fsid);
1415 fp->fa2_fileid = txdr_unsigned(nvap->na_fileid);
1416 txdr_nfsv2time(&nvap->na_atime, &fp->fa2_atime);
1417 txdr_nfsv2time(&nvap->na_mtime, &fp->fa2_mtime);
1418 txdr_nfsv2time(&nvap->na_ctime, &fp->fa2_ctime);
1419 }
1420 }
1421
1422 /*
1423 * This function gets a file handle out of an mbuf list.
1424 * It returns 0 for success, EBADRPC otherwise.
1425 * If sets the third flagp argument to 1 if the file handle is
1426 * the public file handle.
1427 * For NFSv4, if the length is incorrect, set nd_repstat == NFSERR_BADHANDLE
1428 */
1429 int
1430 nfsrv_mtofh(struct nfsrv_descript *nd, struct nfsrvfh *fhp)
1431 {
1432 u_int32_t *tl;
1433 int error = 0, len, copylen;
1434
1435 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
1436 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
1437 len = fxdr_unsigned(int, *tl);
1438 if (len == 0 && nfs_pubfhset && (nd->nd_flag & ND_NFSV3) &&
1439 nd->nd_procnum == NFSPROC_LOOKUP) {
1440 nd->nd_flag |= ND_PUBLOOKUP;
1441 goto nfsmout;
1442 }
1443 if (len < NFSRV_MINFH || len > NFSRV_MAXFH) {
1444 if (nd->nd_flag & ND_NFSV4) {
1445 if (len > 0 && len <= NFSX_V4FHMAX) {
1446 error = nfsm_advance(nd, NFSM_RNDUP(len), -1);
1447 if (error)
1448 goto nfsmout;
1449 nd->nd_repstat = NFSERR_BADHANDLE;
1450 goto nfsmout;
1451 } else {
1452 error = EBADRPC;
1453 goto nfsmout;
1454 }
1455 } else {
1456 error = EBADRPC;
1457 goto nfsmout;
1458 }
1459 }
1460 copylen = len;
1461 } else {
1462 /*
1463 * For NFSv2, the file handle is always 32 bytes on the
1464 * wire, but this server only cares about the first
1465 * NFSRV_MAXFH bytes.
1466 */
1467 len = NFSX_V2FH;
1468 copylen = NFSRV_MAXFH;
1469 }
1470 NFSM_DISSECT(tl, u_int32_t *, len);
1471 if ((nd->nd_flag & ND_NFSV2) && nfs_pubfhset &&
1472 nd->nd_procnum == NFSPROC_LOOKUP &&
1473 !NFSBCMP((caddr_t)tl, nfs_v2pubfh, NFSX_V2FH)) {
1474 nd->nd_flag |= ND_PUBLOOKUP;
1475 goto nfsmout;
1476 }
1477 NFSBCOPY(tl, (caddr_t)fhp->nfsrvfh_data, copylen);
1478 fhp->nfsrvfh_len = copylen;
1479 nfsmout:
1480 NFSEXITCODE2(error, nd);
1481 return (error);
1482 }
1483
1484 /*
1485 * Map errnos to NFS error numbers. For Version 3 and 4 also filter out error
1486 * numbers not specified for the associated procedure.
1487 * NFSPROC_NOOP is a special case, where the high order bits of nd_repstat
1488 * should be cleared. NFSPROC_NOOP is used to return errors when a valid
1489 * RPC procedure is not involved.
1490 * Returns the error number in XDR.
1491 */
1492 int
1493 nfsd_errmap(struct nfsrv_descript *nd)
1494 {
1495 short *defaulterrp, *errp;
1496
1497 if (!nd->nd_repstat)
1498 return (0);
1499 if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
1500 if (nd->nd_procnum == NFSPROC_NOOP)
1501 return (txdr_unsigned(nd->nd_repstat & 0xffff));
1502 if (nd->nd_flag & ND_NFSV3)
1503 errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum];
1504 else if (nd->nd_repstat == EBADRPC)
1505 return (txdr_unsigned(NFSERR_BADXDR));
1506 else if (nd->nd_repstat == NFSERR_MINORVERMISMATCH ||
1507 nd->nd_repstat == NFSERR_OPILLEGAL)
1508 return (txdr_unsigned(nd->nd_repstat));
1509 else if (nd->nd_repstat == NFSERR_REPLYFROMCACHE)
1510 return (txdr_unsigned(NFSERR_IO));
1511 else if ((nd->nd_flag & ND_NFSV41) != 0) {
1512 if (nd->nd_repstat == EOPNOTSUPP)
1513 nd->nd_repstat = NFSERR_NOTSUPP;
1514 nd->nd_repstat = nfsrv_isannfserr(nd->nd_repstat);
1515 return (txdr_unsigned(nd->nd_repstat));
1516 } else
1517 errp = defaulterrp = nfsrv_v4errmap[nd->nd_procnum];
1518 while (*++errp)
1519 if (*errp == nd->nd_repstat)
1520 return (txdr_unsigned(nd->nd_repstat));
1521 return (txdr_unsigned(*defaulterrp));
1522 }
1523 if (nd->nd_repstat <= NFSERR_REMOTE)
1524 return (txdr_unsigned(nfsrv_v2errmap[nd->nd_repstat - 1]));
1525 return (txdr_unsigned(NFSERR_IO));
1526 }
1527
1528 /*
1529 * Check to see if the error is a valid NFS one. If not, replace it with
1530 * NFSERR_IO.
1531 */
1532 static u_int32_t
1533 nfsrv_isannfserr(u_int32_t errval)
1534 {
1535
1536 if (errval == NFSERR_OK)
1537 return (errval);
1538 if (errval >= NFSERR_BADHANDLE && errval <= NFSERR_DELEGREVOKED)
1539 return (errval);
1540 if (errval > 0 && errval <= NFSERR_REMOTE)
1541 return (nfsrv_v2errmap[errval - 1]);
1542 return (NFSERR_IO);
1543 }
1544
1545 /*
1546 * Check to see if setting a uid/gid is permitted when creating a new
1547 * file object. (Called when uid and/or gid is specified in the
1548 * settable attributes for V4.
1549 */
1550 int
1551 nfsrv_checkuidgid(struct nfsrv_descript *nd, struct nfsvattr *nvap)
1552 {
1553 int error = 0;
1554
1555 /*
1556 * If not setting either uid nor gid, it's OK.
1557 */
1558 if (NFSVNO_NOTSETUID(nvap) && NFSVNO_NOTSETGID(nvap))
1559 goto out;
1560 if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid == nfsrv_defaultuid &&
1561 enable_nobodycheck == 1)
1562 || (NFSVNO_ISSETGID(nvap) && nvap->na_gid == nfsrv_defaultgid &&
1563 enable_nogroupcheck == 1)) {
1564 error = NFSERR_BADOWNER;
1565 goto out;
1566 }
1567 if (nd->nd_cred->cr_uid == 0)
1568 goto out;
1569 if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid != nd->nd_cred->cr_uid) ||
1570 (NFSVNO_ISSETGID(nvap) && nvap->na_gid != nd->nd_cred->cr_gid &&
1571 !groupmember(nvap->na_gid, nd->nd_cred)))
1572 error = NFSERR_PERM;
1573
1574 out:
1575 NFSEXITCODE2(error, nd);
1576 return (error);
1577 }
1578
1579 /*
1580 * and this routine fixes up the settable attributes for V4 if allowed
1581 * by nfsrv_checkuidgid().
1582 */
1583 void
1584 nfsrv_fixattr(struct nfsrv_descript *nd, vnode_t vp,
1585 struct nfsvattr *nvap, NFSACL_T *aclp, NFSPROC_T *p, nfsattrbit_t *attrbitp,
1586 struct nfsexstuff *exp)
1587 {
1588 int change = 0;
1589 struct nfsvattr nva;
1590 uid_t tuid;
1591 int error;
1592 nfsattrbit_t nattrbits;
1593
1594 /*
1595 * Maybe this should be done for V2 and 3 but it never has been
1596 * and nobody seems to be upset, so I think it's best not to change
1597 * the V2 and 3 semantics.
1598 */
1599 if ((nd->nd_flag & ND_NFSV4) == 0)
1600 goto out;
1601 NFSVNO_ATTRINIT(&nva);
1602 NFSZERO_ATTRBIT(&nattrbits);
1603 tuid = nd->nd_cred->cr_uid;
1604 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_OWNER) &&
1605 NFSVNO_ISSETUID(nvap) &&
1606 nvap->na_uid != nd->nd_cred->cr_uid) {
1607 if (nd->nd_cred->cr_uid == 0) {
1608 nva.na_uid = nvap->na_uid;
1609 change++;
1610 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_OWNER);
1611 } else {
1612 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_OWNER);
1613 }
1614 }
1615 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_TIMEACCESSSET) &&
1616 NFSVNO_ISSETATIME(nvap)) {
1617 nva.na_atime = nvap->na_atime;
1618 change++;
1619 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_TIMEACCESSSET);
1620 }
1621 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_TIMEMODIFYSET) &&
1622 NFSVNO_ISSETMTIME(nvap)) {
1623 nva.na_mtime = nvap->na_mtime;
1624 change++;
1625 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_TIMEMODIFYSET);
1626 }
1627 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_OWNERGROUP) &&
1628 NFSVNO_ISSETGID(nvap)) {
1629 if (nvap->na_gid == nd->nd_cred->cr_gid ||
1630 groupmember(nvap->na_gid, nd->nd_cred)) {
1631 nd->nd_cred->cr_uid = 0;
1632 nva.na_gid = nvap->na_gid;
1633 change++;
1634 NFSSETBIT_ATTRBIT(&nattrbits, NFSATTRBIT_OWNERGROUP);
1635 } else {
1636 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_OWNERGROUP);
1637 }
1638 }
1639 if (change) {
1640 error = nfsvno_setattr(vp, &nva, nd->nd_cred, p, exp);
1641 if (error) {
1642 NFSCLRALL_ATTRBIT(attrbitp, &nattrbits);
1643 }
1644 }
1645 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_SIZE) &&
1646 NFSVNO_ISSETSIZE(nvap) && nvap->na_size != (u_quad_t)0) {
1647 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_SIZE);
1648 }
1649 #ifdef NFS4_ACL_EXTATTR_NAME
1650 if (NFSISSET_ATTRBIT(attrbitp, NFSATTRBIT_ACL) &&
1651 nfsrv_useacl != 0 && aclp != NULL) {
1652 if (aclp->acl_cnt > 0) {
1653 error = nfsrv_setacl(vp, aclp, nd->nd_cred, p);
1654 if (error) {
1655 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_ACL);
1656 }
1657 }
1658 } else
1659 #endif
1660 NFSCLRBIT_ATTRBIT(attrbitp, NFSATTRBIT_ACL);
1661 nd->nd_cred->cr_uid = tuid;
1662
1663 out:
1664 NFSEXITCODE2(0, nd);
1665 }
1666
1667 /*
1668 * Translate an ASCII hex digit to it's binary value. Return -1 if the
1669 * char isn't a hex digit.
1670 */
1671 static char
1672 nfsrv_hexdigit(char c, int *err)
1673 {
1674
1675 *err = 0;
1676 if (c >= '' && c <= '9')
1677 return (c - '');
1678 if (c >= 'a' && c <= 'f')
1679 return (c - 'a' + ((char)10));
1680 if (c >= 'A' && c <= 'F')
1681 return (c - 'A' + ((char)10));
1682 /* Not valid ! */
1683 *err = 1;
1684 return (1); /* BOGUS */
1685 }
1686
1687 /*
1688 * Check to see if NFSERR_MOVED can be returned for this op. Return 1 iff
1689 * it can be.
1690 */
1691 int
1692 nfsrv_errmoved(int op)
1693 {
1694 short *errp;
1695
1696 errp = nfsrv_v4errmap[op];
1697 while (*errp != 0) {
1698 if (*errp == NFSERR_MOVED)
1699 return (1);
1700 errp++;
1701 }
1702 return (0);
1703 }
1704
1705 /*
1706 * Fill in attributes for a Referral.
1707 * (Return the number of bytes of XDR created.)
1708 */
1709 int
1710 nfsrv_putreferralattr(struct nfsrv_descript *nd, nfsattrbit_t *retbitp,
1711 struct nfsreferral *refp, int getattr, int *reterrp)
1712 {
1713 u_int32_t *tl, *retnump;
1714 u_char *cp, *cp2;
1715 int prefixnum, retnum = 0, i, len, bitpos, rderrbit = 0, nonrefbit = 0;
1716 int fslocationsbit = 0;
1717 nfsattrbit_t tmpbits, refbits;
1718
1719 NFSREFERRAL_ATTRBIT(&refbits);
1720 if (getattr)
1721 NFSCLRBIT_ATTRBIT(&refbits, NFSATTRBIT_RDATTRERROR);
1722 else if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_RDATTRERROR))
1723 rderrbit = 1;
1724 if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_FSLOCATIONS))
1725 fslocationsbit = 1;
1726
1727 /*
1728 * Check for the case where unsupported referral attributes are
1729 * requested.
1730 */
1731 NFSSET_ATTRBIT(&tmpbits, retbitp);
1732 NFSCLRALL_ATTRBIT(&tmpbits, &refbits);
1733 if (NFSNONZERO_ATTRBIT(&tmpbits))
1734 nonrefbit = 1;
1735
1736 if (nonrefbit && !fslocationsbit && (getattr || !rderrbit)) {
1737 *reterrp = NFSERR_MOVED;
1738 return (0);
1739 }
1740
1741 /*
1742 * Now we can fill in the attributes.
1743 */
1744 NFSSET_ATTRBIT(&tmpbits, retbitp);
1745 NFSCLRNOT_ATTRBIT(&tmpbits, &refbits);
1746
1747 /*
1748 * Put out the attribute bitmap for the ones being filled in
1749 * and get the field for the number of attributes returned.
1750 */
1751 prefixnum = nfsrv_putattrbit(nd, &tmpbits);
1752 NFSM_BUILD(retnump, u_int32_t *, NFSX_UNSIGNED);
1753 prefixnum += NFSX_UNSIGNED;
1754
1755 /*
1756 * Now, loop around filling in the attributes for each bit set.
1757 */
1758 for (bitpos = 0; bitpos < NFSATTRBIT_MAX; bitpos++) {
1759 if (NFSISSET_ATTRBIT(&tmpbits, bitpos)) {
1760 switch (bitpos) {
1761 case NFSATTRBIT_TYPE:
1762 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1763 *tl = txdr_unsigned(NFDIR);
1764 retnum += NFSX_UNSIGNED;
1765 break;
1766 case NFSATTRBIT_FSID:
1767 NFSM_BUILD(tl, u_int32_t *, NFSX_V4FSID);
1768 *tl++ = 0;
1769 *tl++ = txdr_unsigned(NFSV4ROOT_FSID0);
1770 *tl++ = 0;
1771 *tl = txdr_unsigned(NFSV4ROOT_REFERRAL);
1772 retnum += NFSX_V4FSID;
1773 break;
1774 case NFSATTRBIT_RDATTRERROR:
1775 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1776 if (nonrefbit)
1777 *tl = txdr_unsigned(NFSERR_MOVED);
1778 else
1779 *tl = 0;
1780 retnum += NFSX_UNSIGNED;
1781 break;
1782 case NFSATTRBIT_FSLOCATIONS:
1783 retnum += nfsm_strtom(nd, "/", 1);
1784 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1785 *tl = txdr_unsigned(refp->nfr_srvcnt);
1786 retnum += NFSX_UNSIGNED;
1787 cp = refp->nfr_srvlist;
1788 for (i = 0; i < refp->nfr_srvcnt; i++) {
1789 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
1790 *tl = txdr_unsigned(1);
1791 retnum += NFSX_UNSIGNED;
1792 cp2 = STRCHR(cp, ':');
1793 if (cp2 != NULL)
1794 len = cp2 - cp;
1795 else
1796 len = 1;
1797 retnum += nfsm_strtom(nd, cp, len);
1798 if (cp2 != NULL)
1799 cp = cp2 + 1;
1800 cp2 = STRCHR(cp, ',');
1801 if (cp2 != NULL)
1802 len = cp2 - cp;
1803 else
1804 len = strlen(cp);
1805 retnum += nfsm_strtom(nd, cp, len);
1806 if (cp2 != NULL)
1807 cp = cp2 + 1;
1808 }
1809 break;
1810 case NFSATTRBIT_MOUNTEDONFILEID:
1811 NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
1812 *tl++ = 0;
1813 *tl = txdr_unsigned(refp->nfr_dfileno);
1814 retnum += NFSX_HYPER;
1815 break;
1816 default:
1817 printf("EEK! Bad V4 refattr bitpos=%d\n", bitpos);
1818 }
1819 }
1820 }
1821 *retnump = txdr_unsigned(retnum);
1822 return (retnum + prefixnum);
1823 }
1824
1825 /*
1826 * Parse a file name out of a request.
1827 */
1828 int
1829 nfsrv_parsename(struct nfsrv_descript *nd, char *bufp, u_long *hashp,
1830 NFSPATHLEN_T *outlenp)
1831 {
1832 char *fromcp, *tocp, val = '\0';
1833 mbuf_t md;
1834 int i;
1835 int rem, len, error = 0, pubtype = 0, outlen = 0, percent = 0;
1836 char digit;
1837 u_int32_t *tl;
1838 u_long hash = 0;
1839
1840 if (hashp != NULL)
1841 *hashp = 0;
1842 tocp = bufp;
1843 /*
1844 * For V4, check for lookup parent.
1845 * Otherwise, get the component name.
1846 */
1847 if ((nd->nd_flag & ND_NFSV4) && nd->nd_procnum == NFSV4OP_LOOKUPP) {
1848 *tocp++ = '.';
1849 hash += ((u_char)'.');
1850 *tocp++ = '.';
1851 hash += ((u_char)'.');
1852 outlen = 2;
1853 } else {
1854 /*
1855 * First, get the name length.
1856 */
1857 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
1858 len = fxdr_unsigned(int, *tl);
1859 if (len > NFS_MAXNAMLEN) {
1860 nd->nd_repstat = NFSERR_NAMETOL;
1861 error = 0;
1862 goto nfsmout;
1863 } else if (len <= 0) {
1864 nd->nd_repstat = NFSERR_INVAL;
1865 error = 0;
1866 goto nfsmout;
1867 }
1868
1869 /*
1870 * Now, copy the component name into the buffer.
1871 */
1872 fromcp = nd->nd_dpos;
1873 md = nd->nd_md;
1874 rem = NFSMTOD(md, caddr_t) + mbuf_len(md) - fromcp;
1875 for (i = 0; i < len; i++) {
1876 while (rem == 0) {
1877 md = mbuf_next(md);
1878 if (md == NULL) {
1879 error = EBADRPC;
1880 goto nfsmout;
1881 }
1882 fromcp = NFSMTOD(md, caddr_t);
1883 rem = mbuf_len(md);
1884 }
1885 if (*fromcp == '\0') {
1886 nd->nd_repstat = EACCES;
1887 error = 0;
1888 goto nfsmout;
1889 }
1890 /*
1891 * For lookups on the public filehandle, do some special
1892 * processing on the name. (The public file handle is the
1893 * root of the public file system for this server.)
1894 */
1895 if (nd->nd_flag & ND_PUBLOOKUP) {
1896 /*
1897 * If the first char is ASCII, it is a canonical
1898 * path, otherwise it is a native path. (RFC2054
1899 * doesn't actually state what it is if the first
1900 * char isn't ASCII or 0x80, so I assume native.)
1901 * pubtype == 1 -> native path
1902 * pubtype == 2 -> canonical path
1903 */
1904 if (i == 0) {
1905 if (*fromcp & 0x80) {
1906 /*
1907 * Since RFC2054 doesn't indicate
1908 * that a native path of just 0x80
1909 * isn't allowed, I'll replace the
1910 * 0x80 with '/' instead of just
1911 * throwing it away.
1912 */
1913 *fromcp = '/';
1914 pubtype = 1;
1915 } else {
1916 pubtype = 2;
1917 }
1918 }
1919 /*
1920 * '/' only allowed in a native path
1921 */
1922 if (*fromcp == '/' && pubtype != 1) {
1923 nd->nd_repstat = EACCES;
1924 error = 0;
1925 goto nfsmout;
1926 }
1927
1928 /*
1929 * For the special case of 2 hex digits after a
1930 * '%' in an absolute path, calculate the value.
1931 * percent == 1 -> indicates "get first hex digit"
1932 * percent == 2 -> indicates "get second hex digit"
1933 */
1934 if (percent > 0) {
1935 digit = nfsrv_hexdigit(*fromcp, &error);
1936 if (error) {
1937 nd->nd_repstat = EACCES;
1938 error = 0;
1939 goto nfsmout;
1940 }
1941 if (percent == 1) {
1942 val = (digit << 4);
1943 percent = 2;
1944 } else {
1945 val += digit;
1946 percent = 0;
1947 *tocp++ = val;
1948 hash += ((u_char)val);
1949 outlen++;
1950 }
1951 } else {
1952 if (*fromcp == '%' && pubtype == 2) {
1953 /*
1954 * Must be followed by 2 hex digits
1955 */
1956 if ((len - i) < 3) {
1957 nd->nd_repstat = EACCES;
1958 error = 0;
1959 goto nfsmout;
1960 }
1961 percent = 1;
1962 } else {
1963 *tocp++ = *fromcp;
1964 hash += ((u_char)*fromcp);
1965 outlen++;
1966 }
1967 }
1968 } else {
1969 /*
1970 * Normal, non lookup on public, name.
1971 */
1972 if (*fromcp == '/') {
1973 if (nd->nd_flag & ND_NFSV4)
1974 nd->nd_repstat = NFSERR_BADNAME;
1975 else
1976 nd->nd_repstat = EACCES;
1977 error = 0;
1978 goto nfsmout;
1979 }
1980 hash += ((u_char)*fromcp);
1981 *tocp++ = *fromcp;
1982 outlen++;
1983 }
1984 fromcp++;
1985 rem--;
1986 }
1987 nd->nd_md = md;
1988 nd->nd_dpos = fromcp;
1989 i = NFSM_RNDUP(len) - len;
1990 if (i > 0) {
1991 if (rem >= i) {
1992 nd->nd_dpos += i;
1993 } else {
1994 error = nfsm_advance(nd, i, rem);
1995 if (error)
1996 goto nfsmout;
1997 }
1998 }
1999
2000 /*
2001 * For v4, don't allow lookups of '.' or '..' and
2002 * also check for non-utf8 strings.
2003 */
2004 if (nd->nd_flag & ND_NFSV4) {
2005 if ((outlen == 1 && bufp[0] == '.') ||
2006 (outlen == 2 && bufp[0] == '.' &&
2007 bufp[1] == '.')) {
2008 nd->nd_repstat = NFSERR_BADNAME;
2009 error = 0;
2010 goto nfsmout;
2011 }
2012 if (enable_checkutf8 == 1 &&
2013 nfsrv_checkutf8((u_int8_t *)bufp, outlen)) {
2014 nd->nd_repstat = NFSERR_INVAL;
2015 error = 0;
2016 goto nfsmout;
2017 }
2018 }
2019 }
2020 *tocp = '\0';
2021 *outlenp = (size_t)outlen;
2022 if (hashp != NULL)
2023 *hashp = hash;
2024 nfsmout:
2025 NFSEXITCODE2(error, nd);
2026 return (error);
2027 }
2028
2029 void
2030 nfsd_init(void)
2031 {
2032 int i;
2033 static int inited = 0;
2034
2035 if (inited)
2036 return;
2037 inited = 1;
2038
2039 /*
2040 * Initialize client queues. Don't free/reinitialize
2041 * them when nfsds are restarted.
2042 */
2043 nfsclienthash = malloc(sizeof(struct nfsclienthashhead) *
2044 nfsrv_clienthashsize, M_NFSDCLIENT, M_WAITOK | M_ZERO);
2045 for (i = 0; i < nfsrv_clienthashsize; i++)
2046 LIST_INIT(&nfsclienthash[i]);
2047 nfslockhash = malloc(sizeof(struct nfslockhashhead) *
2048 nfsrv_lockhashsize, M_NFSDLOCKFILE, M_WAITOK | M_ZERO);
2049 for (i = 0; i < nfsrv_lockhashsize; i++)
2050 LIST_INIT(&nfslockhash[i]);
2051 nfssessionhash = malloc(sizeof(struct nfssessionhash) *
2052 nfsrv_sessionhashsize, M_NFSDSESSION, M_WAITOK | M_ZERO);
2053 for (i = 0; i < nfsrv_sessionhashsize; i++) {
2054 mtx_init(&nfssessionhash[i].mtx, "nfssm", NULL, MTX_DEF);
2055 LIST_INIT(&nfssessionhash[i].list);
2056 }
2057
2058 /* and the v2 pubfh should be all zeros */
2059 NFSBZERO(nfs_v2pubfh, NFSX_V2FH);
2060 }
2061
2062 /*
2063 * Check the v4 root exports.
2064 * Return 0 if ok, 1 otherwise.
2065 */
2066 int
2067 nfsd_checkrootexp(struct nfsrv_descript *nd)
2068 {
2069
2070 if ((nd->nd_flag & (ND_GSS | ND_EXAUTHSYS)) == ND_EXAUTHSYS)
2071 return (0);
2072 if ((nd->nd_flag & (ND_GSSINTEGRITY | ND_EXGSSINTEGRITY)) ==
2073 (ND_GSSINTEGRITY | ND_EXGSSINTEGRITY))
2074 return (0);
2075 if ((nd->nd_flag & (ND_GSSPRIVACY | ND_EXGSSPRIVACY)) ==
2076 (ND_GSSPRIVACY | ND_EXGSSPRIVACY))
2077 return (0);
2078 if ((nd->nd_flag & (ND_GSS | ND_GSSINTEGRITY | ND_GSSPRIVACY |
2079 ND_EXGSS)) == (ND_GSS | ND_EXGSS))
2080 return (0);
2081 return (1);
2082 }
2083
2084 /*
2085 * Parse the first part of an NFSv4 compound to find out what the minor
2086 * version# is.
2087 */
2088 void
2089 nfsd_getminorvers(struct nfsrv_descript *nd, u_char *tag, u_char **tagstrp,
2090 int *taglenp, u_int32_t *minversp)
2091 {
2092 uint32_t *tl;
2093 int error = 0, taglen = -1;
2094 u_char *tagstr = NULL;
2095
2096 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
2097 taglen = fxdr_unsigned(int, *tl);
2098 if (taglen < 0 || taglen > NFSV4_OPAQUELIMIT) {
2099 error = EBADRPC;
2100 goto nfsmout;
2101 }
2102 if (taglen <= NFSV4_SMALLSTR)
2103 tagstr = tag;
2104 else
2105 tagstr = malloc(taglen + 1, M_TEMP, M_WAITOK);
2106 error = nfsrv_mtostr(nd, tagstr, taglen);
2107 if (error != 0)
2108 goto nfsmout;
2109 NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
2110 *minversp = fxdr_unsigned(u_int32_t, *tl);
2111 *tagstrp = tagstr;
2112 if (*minversp == NFSV41_MINORVERSION)
2113 nd->nd_flag |= ND_NFSV41;
2114 nfsmout:
2115 if (error != 0) {
2116 if (tagstr != NULL && taglen > NFSV4_SMALLSTR)
2117 free(tagstr, M_TEMP);
2118 taglen = -1;
2119 }
2120 *taglenp = taglen;
2121 }
2122
Cache object: ba5084338a710b4847ca8f04d80b652d
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