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sync'ing up for 3.0alpha20 release
[Samba.git] / source / libsmb / clispnego.c
blob55f49c5987111af4c1e8f1f9eb1fda6691b1a2c0
1 /*
2 Unix SMB/CIFS implementation.
3 simple kerberos5/SPNEGO routines
4 Copyright (C) Andrew Tridgell 2001
5 Copyright (C) Jim McDonough 2002
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22 #include "includes.h"
23
24 /*
25 generate a negTokenInit packet given a GUID, a list of supported
26 OIDs (the mechanisms) and a principal name string
27 */
28 DATA_BLOB spnego_gen_negTokenInit(uint8 guid[16],
29 const char *OIDs[],
30 const char *principal)
31 {
32 int i;
33 ASN1_DATA data;
34 DATA_BLOB ret;
35
36 memset(&data, 0, sizeof(data));
37
38 asn1_write(&data, guid, 16);
39 asn1_push_tag(&data,ASN1_APPLICATION(0));
40 asn1_write_OID(&data,OID_SPNEGO);
41 asn1_push_tag(&data,ASN1_CONTEXT(0));
42 asn1_push_tag(&data,ASN1_SEQUENCE(0));
43
44 asn1_push_tag(&data,ASN1_CONTEXT(0));
45 asn1_push_tag(&data,ASN1_SEQUENCE(0));
46 for (i=0; OIDs[i]; i++) {
47 asn1_write_OID(&data,OIDs[i]);
48 }
49 asn1_pop_tag(&data);
50 asn1_pop_tag(&data);
51
52 asn1_push_tag(&data, ASN1_CONTEXT(3));
53 asn1_push_tag(&data, ASN1_SEQUENCE(0));
54 asn1_push_tag(&data, ASN1_CONTEXT(0));
55 asn1_write_GeneralString(&data,principal);
56 asn1_pop_tag(&data);
57 asn1_pop_tag(&data);
58 asn1_pop_tag(&data);
59
60 asn1_pop_tag(&data);
61 asn1_pop_tag(&data);
62
63 asn1_pop_tag(&data);
64
65 if (data.has_error) {
66 DEBUG(1,("Failed to build negTokenInit at offset %d\n", (int)data.ofs));
67 asn1_free(&data);
68 }
69
70 ret = data_blob(data.data, data.length);
71 asn1_free(&data);
72
73 return ret;
74 }
75
76 /*
77 Generate a negTokenInit as used by the client side ... It has a mechType
78 (OID), and a mechToken (a security blob) ...
79
80 Really, we need to break out the NTLMSSP stuff as well, because it could be
81 raw in the packets!
82 */
83 DATA_BLOB gen_negTokenInit(const char *OID, DATA_BLOB blob)
84 {
85 ASN1_DATA data;
86 DATA_BLOB ret;
87
88 memset(&data, 0, sizeof(data));
89
90 asn1_push_tag(&data, ASN1_APPLICATION(0));
91 asn1_write_OID(&data,OID_SPNEGO);
92 asn1_push_tag(&data, ASN1_CONTEXT(0));
93 asn1_push_tag(&data, ASN1_SEQUENCE(0));
94
95 asn1_push_tag(&data, ASN1_CONTEXT(0));
96 asn1_push_tag(&data, ASN1_SEQUENCE(0));
97 asn1_write_OID(&data, OID);
98 asn1_pop_tag(&data);
99 asn1_pop_tag(&data);
100
101 asn1_push_tag(&data, ASN1_CONTEXT(2));
102 asn1_write_OctetString(&data,blob.data,blob.length);
103 asn1_pop_tag(&data);
104
105 asn1_pop_tag(&data);
106 asn1_pop_tag(&data);
107
108 asn1_pop_tag(&data);
109
110 if (data.has_error) {
111 DEBUG(1,("Failed to build negTokenInit at offset %d\n", (int)data.ofs));
112 asn1_free(&data);
113 }
114
115 ret = data_blob(data.data, data.length);
116 asn1_free(&data);
117
118 return ret;
119 }
120
121 /*
122 parse a negTokenInit packet giving a GUID, a list of supported
123 OIDs (the mechanisms) and a principal name string
124 */
125 BOOL spnego_parse_negTokenInit(DATA_BLOB blob,
126 char *OIDs[ASN1_MAX_OIDS],
127 char **principal)
128 {
129 int i;
130 BOOL ret;
131 ASN1_DATA data;
132
133 asn1_load(&data, blob);
134
135 asn1_start_tag(&data,ASN1_APPLICATION(0));
136 asn1_check_OID(&data,OID_SPNEGO);
137 asn1_start_tag(&data,ASN1_CONTEXT(0));
138 asn1_start_tag(&data,ASN1_SEQUENCE(0));
139
140 asn1_start_tag(&data,ASN1_CONTEXT(0));
141 asn1_start_tag(&data,ASN1_SEQUENCE(0));
142 for (i=0; asn1_tag_remaining(&data) > 0 && i < ASN1_MAX_OIDS; i++) {
143 char *oid = NULL;
144 asn1_read_OID(&data,&oid);
145 OIDs[i] = oid;
146 }
147 OIDs[i] = NULL;
148 asn1_end_tag(&data);
149 asn1_end_tag(&data);
150
151 asn1_start_tag(&data, ASN1_CONTEXT(3));
152 asn1_start_tag(&data, ASN1_SEQUENCE(0));
153 asn1_start_tag(&data, ASN1_CONTEXT(0));
154 asn1_read_GeneralString(&data,principal);
155 asn1_end_tag(&data);
156 asn1_end_tag(&data);
157 asn1_end_tag(&data);
158
159 asn1_end_tag(&data);
160 asn1_end_tag(&data);
161
162 asn1_end_tag(&data);
163
164 ret = !data.has_error;
165 asn1_free(&data);
166 return ret;
167 }
168
169
170 /*
171 generate a negTokenTarg packet given a list of OIDs and a security blob
172 */
173 DATA_BLOB gen_negTokenTarg(const char *OIDs[], DATA_BLOB blob)
174 {
175 int i;
176 ASN1_DATA data;
177 DATA_BLOB ret;
178
179 memset(&data, 0, sizeof(data));
180
181 asn1_push_tag(&data, ASN1_APPLICATION(0));
182 asn1_write_OID(&data,OID_SPNEGO);
183 asn1_push_tag(&data, ASN1_CONTEXT(0));
184 asn1_push_tag(&data, ASN1_SEQUENCE(0));
185
186 asn1_push_tag(&data, ASN1_CONTEXT(0));
187 asn1_push_tag(&data, ASN1_SEQUENCE(0));
188 for (i=0; OIDs[i]; i++) {
189 asn1_write_OID(&data,OIDs[i]);
190 }
191 asn1_pop_tag(&data);
192 asn1_pop_tag(&data);
193
194 asn1_push_tag(&data, ASN1_CONTEXT(2));
195 asn1_write_OctetString(&data,blob.data,blob.length);
196 asn1_pop_tag(&data);
197
198 asn1_pop_tag(&data);
199 asn1_pop_tag(&data);
200
201 asn1_pop_tag(&data);
202
203 if (data.has_error) {
204 DEBUG(1,("Failed to build negTokenTarg at offset %d\n", (int)data.ofs));
205 asn1_free(&data);
206 }
207
208 ret = data_blob(data.data, data.length);
209 asn1_free(&data);
210
211 return ret;
212 }
213
214
215 /*
216 parse a negTokenTarg packet giving a list of OIDs and a security blob
217 */
218 BOOL parse_negTokenTarg(DATA_BLOB blob, char *OIDs[ASN1_MAX_OIDS], DATA_BLOB *secblob)
219 {
220 int i;
221 ASN1_DATA data;
222
223 asn1_load(&data, blob);
224 asn1_start_tag(&data, ASN1_APPLICATION(0));
225 asn1_check_OID(&data,OID_SPNEGO);
226 asn1_start_tag(&data, ASN1_CONTEXT(0));
227 asn1_start_tag(&data, ASN1_SEQUENCE(0));
228
229 asn1_start_tag(&data, ASN1_CONTEXT(0));
230 asn1_start_tag(&data, ASN1_SEQUENCE(0));
231 for (i=0; asn1_tag_remaining(&data) > 0 && i < ASN1_MAX_OIDS; i++) {
232 char *oid = NULL;
233 asn1_read_OID(&data,&oid);
234 OIDs[i] = oid;
235 }
236 OIDs[i] = NULL;
237 asn1_end_tag(&data);
238 asn1_end_tag(&data);
239
240 asn1_start_tag(&data, ASN1_CONTEXT(2));
241 asn1_read_OctetString(&data,secblob);
242 asn1_end_tag(&data);
243
244 asn1_end_tag(&data);
245 asn1_end_tag(&data);
246
247 asn1_end_tag(&data);
248
249 if (data.has_error) {
250 DEBUG(1,("Failed to parse negTokenTarg at offset %d\n", (int)data.ofs));
251 asn1_free(&data);
252 return False;
253 }
254
255 asn1_free(&data);
256 return True;
257 }
258
259 /*
260 generate a krb5 GSS-API wrapper packet given a ticket
261 */
262 DATA_BLOB spnego_gen_krb5_wrap(DATA_BLOB ticket)
263 {
264 ASN1_DATA data;
265 DATA_BLOB ret;
266
267 memset(&data, 0, sizeof(data));
268
269 asn1_push_tag(&data, ASN1_APPLICATION(0));
270 asn1_write_OID(&data, OID_KERBEROS5);
271 asn1_write_BOOLEAN(&data, 0);
272 asn1_write(&data, ticket.data, ticket.length);
273 asn1_pop_tag(&data);
274
275 if (data.has_error) {
276 DEBUG(1,("Failed to build krb5 wrapper at offset %d\n", (int)data.ofs));
277 asn1_free(&data);
278 }
279
280 ret = data_blob(data.data, data.length);
281 asn1_free(&data);
282
283 return ret;
284 }
285
286 /*
287 parse a krb5 GSS-API wrapper packet giving a ticket
288 */
289 BOOL spnego_parse_krb5_wrap(DATA_BLOB blob, DATA_BLOB *ticket)
290 {
291 BOOL ret;
292 ASN1_DATA data;
293 int data_remaining;
294
295 asn1_load(&data, blob);
296 asn1_start_tag(&data, ASN1_APPLICATION(0));
297 asn1_check_OID(&data, OID_KERBEROS5);
298 asn1_check_BOOLEAN(&data, 0);
299
300 data_remaining = asn1_tag_remaining(&data);
301
302 if (data_remaining < 1) {
303 data.has_error = True;
304 } else {
305
306 *ticket = data_blob(data.data, data_remaining);
307 asn1_read(&data, ticket->data, ticket->length);
308 }
309
310 asn1_end_tag(&data);
311
312 ret = !data.has_error;
313
314 asn1_free(&data);
315
316 return ret;
317 }
318
319
320 /*
321 generate a SPNEGO negTokenTarg packet, ready for a EXTENDED_SECURITY
322 kerberos session setup
323 */
324 DATA_BLOB spnego_gen_negTokenTarg(const char *principal, int time_offset)
325 {
326 DATA_BLOB tkt, tkt_wrapped, targ;
327 const char *krb_mechs[] = {OID_KERBEROS5_OLD, OID_NTLMSSP, NULL};
328
329 /* get a kerberos ticket for the service */
330 tkt = krb5_get_ticket(principal, time_offset);
331
332 /* wrap that up in a nice GSS-API wrapping */
333 tkt_wrapped = spnego_gen_krb5_wrap(tkt);
334
335 /* and wrap that in a shiny SPNEGO wrapper */
336 targ = gen_negTokenTarg(krb_mechs, tkt_wrapped);
337
338 data_blob_free(&tkt_wrapped);
339 data_blob_free(&tkt);
340
341 return targ;
342 }
343
344
345 /*
346 parse a spnego NTLMSSP challenge packet giving two security blobs
347 */
348 BOOL spnego_parse_challenge(DATA_BLOB blob,
349 DATA_BLOB *chal1, DATA_BLOB *chal2)
350 {
351 BOOL ret;
352 ASN1_DATA data;
353
354 ZERO_STRUCTP(chal1);
355 ZERO_STRUCTP(chal2);
356
357 asn1_load(&data, blob);
358 asn1_start_tag(&data,ASN1_CONTEXT(1));
359 asn1_start_tag(&data,ASN1_SEQUENCE(0));
360
361 asn1_start_tag(&data,ASN1_CONTEXT(0));
362 asn1_check_enumerated(&data,1);
363 asn1_end_tag(&data);
364
365 asn1_start_tag(&data,ASN1_CONTEXT(1));
366 asn1_check_OID(&data, OID_NTLMSSP);
367 asn1_end_tag(&data);
368
369 asn1_start_tag(&data,ASN1_CONTEXT(2));
370 asn1_read_OctetString(&data, chal1);
371 asn1_end_tag(&data);
372
373 /* the second challenge is optional (XP doesn't send it) */
374 if (asn1_tag_remaining(&data)) {
375 asn1_start_tag(&data,ASN1_CONTEXT(3));
376 asn1_read_OctetString(&data, chal2);
377 asn1_end_tag(&data);
378 }
379
380 asn1_end_tag(&data);
381 asn1_end_tag(&data);
382
383 ret = !data.has_error;
384 asn1_free(&data);
385 return ret;
386 }
387
388
389 /*
390 generate a spnego NTLMSSP challenge packet given two security blobs
391 The second challenge is optional
392 */
393 BOOL spnego_gen_challenge(DATA_BLOB *blob,
394 DATA_BLOB *chal1, DATA_BLOB *chal2)
395 {
396 ASN1_DATA data;
397
398 ZERO_STRUCT(data);
399
400 asn1_push_tag(&data,ASN1_CONTEXT(1));
401 asn1_push_tag(&data,ASN1_SEQUENCE(0));
402
403 asn1_push_tag(&data,ASN1_CONTEXT(0));
404 asn1_write_enumerated(&data,1);
405 asn1_pop_tag(&data);
406
407 asn1_push_tag(&data,ASN1_CONTEXT(1));
408 asn1_write_OID(&data, OID_NTLMSSP);
409 asn1_pop_tag(&data);
410
411 asn1_push_tag(&data,ASN1_CONTEXT(2));
412 asn1_write_OctetString(&data, chal1->data, chal1->length);
413 asn1_pop_tag(&data);
414
415 /* the second challenge is optional (XP doesn't send it) */
416 if (chal2) {
417 asn1_push_tag(&data,ASN1_CONTEXT(3));
418 asn1_write_OctetString(&data, chal2->data, chal2->length);
419 asn1_pop_tag(&data);
420 }
421
422 asn1_pop_tag(&data);
423 asn1_pop_tag(&data);
424
425 if (data.has_error) {
426 return False;
427 }
428
429 *blob = data_blob(data.data, data.length);
430 asn1_free(&data);
431 return True;
432 }
433
434 /*
435 generate a SPNEGO NTLMSSP auth packet. This will contain the encrypted passwords
436 */
437 DATA_BLOB spnego_gen_auth(DATA_BLOB blob)
438 {
439 ASN1_DATA data;
440 DATA_BLOB ret;
441
442 memset(&data, 0, sizeof(data));
443
444 asn1_push_tag(&data, ASN1_CONTEXT(1));
445 asn1_push_tag(&data, ASN1_SEQUENCE(0));
446 asn1_push_tag(&data, ASN1_CONTEXT(2));
447 asn1_write_OctetString(&data,blob.data,blob.length);
448 asn1_pop_tag(&data);
449 asn1_pop_tag(&data);
450 asn1_pop_tag(&data);
451
452 ret = data_blob(data.data, data.length);
453
454 asn1_free(&data);
455
456 return ret;
457 }
458
459 /*
460 parse a SPNEGO NTLMSSP auth packet. This contains the encrypted passwords
461 */
462 BOOL spnego_parse_auth(DATA_BLOB blob, DATA_BLOB *auth)
463 {
464 ASN1_DATA data;
465
466 asn1_load(&data, blob);
467 asn1_start_tag(&data, ASN1_CONTEXT(1));
468 asn1_start_tag(&data, ASN1_SEQUENCE(0));
469 asn1_start_tag(&data, ASN1_CONTEXT(2));
470 asn1_read_OctetString(&data,auth);
471 asn1_end_tag(&data);
472 asn1_end_tag(&data);
473 asn1_end_tag(&data);
474
475 if (data.has_error) {
476 DEBUG(3,("spnego_parse_auth failed at %d\n", (int)data.ofs));
477 asn1_free(&data);
478 return False;
479 }
480
481 asn1_free(&data);
482 return True;
483 }
484
485 /*
486 generate a minimal SPNEGO NTLMSSP response packet. Doesn't contain much.
487 */
488 DATA_BLOB spnego_gen_auth_response(void)
489 {
490 ASN1_DATA data;
491 DATA_BLOB ret;
492
493 memset(&data, 0, sizeof(data));
494
495 asn1_push_tag(&data, ASN1_CONTEXT(1));
496 asn1_push_tag(&data, ASN1_SEQUENCE(0));
497 asn1_push_tag(&data, ASN1_CONTEXT(0));
498 asn1_write_enumerated(&data, 0);
499 asn1_pop_tag(&data);
500 asn1_pop_tag(&data);
501 asn1_pop_tag(&data);
502
503 ret = data_blob(data.data, data.length);
504 asn1_free(&data);
505 return ret;
506 }
507
508 /*
509 this is a tiny msrpc packet generator. I am only using this to
510 avoid tying this code to a particular varient of our rpc code. This
511 generator is not general enough for all our rpc needs, its just
512 enough for the spnego/ntlmssp code
513
514 format specifiers are:
515
516 U = unicode string (input is unix string)
517 a = address (1 byte type, 1 byte length, unicode string, all inline)
518 A = ASCII string (pointer + length) Actually same as B
519 B = data blob (pointer + length)
520 b = data blob in header (pointer + length)
521 D
522 d = word (4 bytes)
523 C = constant ascii string
524 */
525 BOOL msrpc_gen(DATA_BLOB *blob,
526 const char *format, ...)
527 {
528 int i, n;
529 va_list ap;
530 char *s;
531 uint8 *b;
532 int head_size=0, data_size=0;
533 int head_ofs, data_ofs;
534
535 /* first scan the format to work out the header and body size */
536 va_start(ap, format);
537 for (i=0; format[i]; i++) {
538 switch (format[i]) {
539 case 'U':
540 s = va_arg(ap, char *);
541 head_size += 8;
542 data_size += str_charnum(s) * 2;
543 break;
544 case 'a':
545 n = va_arg(ap, int);
546 s = va_arg(ap, char *);
547 data_size += (str_charnum(s) * 2) + 4;
548 break;
549 case 'A':
550 case 'B':
551 b = va_arg(ap, uint8 *);
552 head_size += 8;
553 data_size += va_arg(ap, int);
554 break;
555 case 'b':
556 b = va_arg(ap, uint8 *);
557 head_size += va_arg(ap, int);
558 break;
559 case 'd':
560 n = va_arg(ap, int);
561 head_size += 4;
562 break;
563 case 'C':
564 s = va_arg(ap, char *);
565 head_size += str_charnum(s) + 1;
566 break;
567 }
568 }
569 va_end(ap);
570
571 /* allocate the space, then scan the format again to fill in the values */
572 *blob = data_blob(NULL, head_size + data_size);
573
574 head_ofs = 0;
575 data_ofs = head_size;
576
577 va_start(ap, format);
578 for (i=0; format[i]; i++) {
579 switch (format[i]) {
580 case 'U':
581 s = va_arg(ap, char *);
582 n = str_charnum(s);
583 SSVAL(blob->data, head_ofs, n*2); head_ofs += 2;
584 SSVAL(blob->data, head_ofs, n*2); head_ofs += 2;
585 SIVAL(blob->data, head_ofs, data_ofs); head_ofs += 4;
586 push_string(NULL, blob->data+data_ofs, s, n*2, STR_UNICODE|STR_NOALIGN);
587 data_ofs += n*2;
588 break;
589 case 'a':
590 n = va_arg(ap, int);
591 SSVAL(blob->data, data_ofs, n); data_ofs += 2;
592 s = va_arg(ap, char *);
593 n = str_charnum(s);
594 SSVAL(blob->data, data_ofs, n*2); data_ofs += 2;
595 if (0 < n) {
596 push_string(NULL, blob->data+data_ofs, s, n*2,
597 STR_UNICODE|STR_NOALIGN);
598 }
599 data_ofs += n*2;
600 break;
601
602 case 'A':
603 case 'B':
604 b = va_arg(ap, uint8 *);
605 n = va_arg(ap, int);
606 SSVAL(blob->data, head_ofs, n); head_ofs += 2;
607 SSVAL(blob->data, head_ofs, n); head_ofs += 2;
608 SIVAL(blob->data, head_ofs, data_ofs); head_ofs += 4;
609 memcpy(blob->data+data_ofs, b, n);
610 data_ofs += n;
611 break;
612 case 'd':
613 n = va_arg(ap, int);
614 SIVAL(blob->data, head_ofs, n); head_ofs += 4;
615 break;
616 case 'b':
617 b = va_arg(ap, uint8 *);
618 n = va_arg(ap, int);
619 memcpy(blob->data + head_ofs, b, n);
620 head_ofs += n;
621 break;
622 case 'C':
623 s = va_arg(ap, char *);
624 head_ofs += push_string(NULL, blob->data+head_ofs, s, -1,
625 STR_ASCII|STR_TERMINATE);
626 break;
627 }
628 }
629 va_end(ap);
630
631 return True;
632 }
633
634
635 /*
636 this is a tiny msrpc packet parser. This the the partner of msrpc_gen
637
638 format specifiers are:
639
640 U = unicode string (output is unix string)
641 A = ascii string
642 B = data blob
643 b = data blob in header
644 d = word (4 bytes)
645 C = constant ascii string
646 */
647 BOOL msrpc_parse(DATA_BLOB *blob,
648 const char *format, ...)
649 {
650 int i;
651 va_list ap;
652 char **ps, *s;
653 DATA_BLOB *b;
654 int head_ofs = 0;
655 uint16 len1, len2;
656 uint32 ptr;
657 uint32 *v;
658 pstring p;
659
660 va_start(ap, format);
661 for (i=0; format[i]; i++) {
662 switch (format[i]) {
663 case 'U':
664 len1 = SVAL(blob->data, head_ofs); head_ofs += 2;
665 len2 = SVAL(blob->data, head_ofs); head_ofs += 2;
666 ptr = IVAL(blob->data, head_ofs); head_ofs += 4;
667 /* make sure its in the right format - be strict */
668 if (len1 != len2 || (len1&1) || ptr + len1 > blob->length) {
669 return False;
670 }
671 ps = va_arg(ap, char **);
672 pull_string(NULL, p, blob->data + ptr, -1, len1,
673 STR_UNICODE|STR_NOALIGN);
674 (*ps) = strdup(p);
675 break;
676 case 'A':
677 len1 = SVAL(blob->data, head_ofs); head_ofs += 2;
678 len2 = SVAL(blob->data, head_ofs); head_ofs += 2;
679 ptr = IVAL(blob->data, head_ofs); head_ofs += 4;
680
681 /* make sure its in the right format - be strict */
682 if (len1 != len2 || ptr + len1 > blob->length) {
683 return False;
684 }
685 ps = va_arg(ap, char **);
686 if (0 < len1) {
687 pull_string(NULL, p, blob->data + ptr, -1,
688 len1, STR_ASCII|STR_NOALIGN);
689 (*ps) = strdup(p);
690 } else {
691 (*ps) = NULL;
692 }
693 break;
694 case 'B':
695 len1 = SVAL(blob->data, head_ofs); head_ofs += 2;
696 len2 = SVAL(blob->data, head_ofs); head_ofs += 2;
697 ptr = IVAL(blob->data, head_ofs); head_ofs += 4;
698 /* make sure its in the right format - be strict */
699 if (len1 != len2 || ptr + len1 > blob->length) {
700 return False;
701 }
702 b = (DATA_BLOB *)va_arg(ap, void *);
703 *b = data_blob(blob->data + ptr, len1);
704 break;
705 case 'b':
706 b = (DATA_BLOB *)va_arg(ap, void *);
707 len1 = va_arg(ap, unsigned);
708 *b = data_blob(blob->data + head_ofs, len1);
709 head_ofs += len1;
710 break;
711 case 'd':
712 v = va_arg(ap, uint32 *);
713 *v = IVAL(blob->data, head_ofs); head_ofs += 4;
714 break;
715 case 'C':
716 s = va_arg(ap, char *);
717 head_ofs += pull_string(NULL, p, blob->data+head_ofs, -1,
718 blob->length - head_ofs,
719 STR_ASCII|STR_TERMINATE);
720 if (strcmp(s, p) != 0) {
721 return False;
722 }
723 break;
724 }
725 }
726 va_end(ap);
727
728 return True;
729 }
730
731 /**
732 * Print out the NTLMSSP flags for debugging
733 */
734
735 void debug_ntlmssp_flags(uint32 neg_flags)
736 {
737 DEBUG(3,("Got NTLMSSP neg_flags=0x%08x\n", neg_flags));
738
739 if (neg_flags & NTLMSSP_NEGOTIATE_UNICODE)
740 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_UNICODE\n"));
741 if (neg_flags & NTLMSSP_NEGOTIATE_OEM)
742 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM\n"));
743 if (neg_flags & NTLMSSP_REQUEST_TARGET)
744 DEBUGADD(4, (" NTLMSSP_REQUEST_TARGET\n"));
745 if (neg_flags & NTLMSSP_NEGOTIATE_SIGN)
746 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SIGN\n"));
747 if (neg_flags & NTLMSSP_NEGOTIATE_SEAL)
748 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SEAL\n"));
749 if (neg_flags & NTLMSSP_NEGOTIATE_LM_KEY)
750 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_LM_KEY\n"));
751 if (neg_flags & NTLMSSP_NEGOTIATE_NETWARE)
752 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NETWARE\n"));
753 if (neg_flags & NTLMSSP_NEGOTIATE_NTLM)
754 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM\n"));
755 if (neg_flags & NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED)
756 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED\n"));
757 if (neg_flags & NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED)
758 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED\n"));
759 if (neg_flags & NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL)
760 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL\n"));
761 if (neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)
762 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_ALWAYS_SIGN\n"));
763 if (neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
764 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM2\n"));
765 if (neg_flags & NTLMSSP_CHAL_TARGET_INFO)
766 DEBUGADD(4, (" NTLMSSP_CHAL_TARGET_INFO\n"));
767 if (neg_flags & NTLMSSP_NEGOTIATE_128)
768 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_128\n"));
769 if (neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH)
770 DEBUGADD(4, (" NTLMSSP_NEGOTIATE_KEY_EXCH\n"));
771 }
772
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