2 Unix SMB/CIFS implementation.
3 kerberos authorization data (PAC) utility library
4 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 static DATA_BLOB unwrap_pac(DATA_BLOB *auth_data)
27 DATA_BLOB pac_contents;
31 asn1_load(&data, *auth_data);
32 asn1_start_tag(&data, ASN1_SEQUENCE(0));
33 asn1_start_tag(&data, ASN1_SEQUENCE(0));
34 asn1_start_tag(&data, ASN1_CONTEXT(0));
35 asn1_read_Integer(&data, &data_type);
37 asn1_start_tag(&data, ASN1_CONTEXT(1));
38 asn1_read_OctetString(&data, &pac_contents);
46 static BOOL pac_io_unknown_type_10(const char *desc, UNKNOWN_TYPE_10 *type_10,
47 prs_struct *ps, int depth)
52 prs_debug(ps, depth, desc, "pac_io_unknown_type_10");
55 if (!smb_io_time("unknown_time", &type_10->unknown_time, ps, depth))
58 if (!prs_uint16("len", ps, depth, &type_10->len))
61 if (UNMARSHALLING(ps) && type_10->len) {
62 type_10->username = (uint16 *) prs_alloc_mem(ps, type_10->len);
63 if (!type_10->username) {
64 DEBUG(3, ("No memory available\n"));
69 if (!prs_uint16s(True, "name", ps, depth, type_10->username,
70 (type_10->len / sizeof(uint16))))
78 static BOOL pac_io_krb_sids(const char *desc, KRB_SID_AND_ATTRS *sid_and_attr,
79 prs_struct *ps, int depth)
81 if (NULL == sid_and_attr)
84 prs_debug(ps, depth, desc, "pac_io_krb_sids");
87 if (UNMARSHALLING(ps)) {
89 (DOM_SID2 * ) prs_alloc_mem(ps, sizeof(DOM_SID2));
90 if (!sid_and_attr->sid) {
91 DEBUG(3, ("No memory available\n"));
96 if(!smb_io_dom_sid2("sid", sid_and_attr->sid, ps, depth))
103 static BOOL pac_io_krb_attrs(const char *desc, KRB_SID_AND_ATTRS *sid_and_attr,
104 prs_struct *ps, int depth)
106 if (NULL == sid_and_attr)
109 prs_debug(ps, depth, desc, "pac_io_krb_attrs");
112 if (!prs_uint32("sid_ptr", ps, depth, &sid_and_attr->sid_ptr))
114 if (!prs_uint32("attrs", ps, depth, &sid_and_attr->attrs))
120 static BOOL pac_io_krb_sid_and_attr_array(const char *desc,
121 KRB_SID_AND_ATTR_ARRAY *array,
123 prs_struct *ps, int depth)
130 prs_debug(ps, depth, desc, "pac_io_krb_sid_and_attr_array");
134 if (!prs_uint32("count", ps, depth, &array->count))
137 if (UNMARSHALLING(ps)) {
138 array->krb_sid_and_attrs = (KRB_SID_AND_ATTRS *)
139 prs_alloc_mem(ps, sizeof(KRB_SID_AND_ATTRS) * num);
140 if (!array->krb_sid_and_attrs) {
141 DEBUG(3, ("No memory available\n"));
146 for (i=0; i<num; i++) {
147 if (!pac_io_krb_attrs(desc,
148 &array->krb_sid_and_attrs[i],
153 for (i=0; i<num; i++) {
154 if (!pac_io_krb_sids(desc,
155 &array->krb_sid_and_attrs[i],
165 static BOOL pac_io_group_membership(const char *desc,
166 GROUP_MEMBERSHIP *membership,
167 prs_struct *ps, int depth)
169 if (NULL == membership)
172 prs_debug(ps, depth, desc, "pac_io_group_membership");
175 if (!prs_uint32("rid", ps, depth, &membership->rid))
177 if (!prs_uint32("attrs", ps, depth, &membership->attrs))
184 static BOOL pac_io_group_membership_array(const char *desc,
185 GROUP_MEMBERSHIP_ARRAY *array,
187 prs_struct *ps, int depth)
194 prs_debug(ps, depth, desc, "pac_io_group_membership_array");
198 if (!prs_uint32("count", ps, depth, &array->count))
201 if (UNMARSHALLING(ps)) {
202 array->group_membership = (GROUP_MEMBERSHIP *)
203 prs_alloc_mem(ps, sizeof(GROUP_MEMBERSHIP) * num);
204 if (!array->group_membership) {
205 DEBUG(3, ("No memory available\n"));
210 for (i=0; i<num; i++) {
211 if (!pac_io_group_membership(desc,
212 &array->group_membership[i],
222 static BOOL pac_io_pac_logon_info(const char *desc, PAC_LOGON_INFO *info,
223 prs_struct *ps, int depth)
229 prs_debug(ps, depth, desc, "pac_io_pac_logon_info");
232 if (!prs_uint32("unknown", ps, depth, &garbage))
234 if (!prs_uint32("unknown", ps, depth, &garbage))
236 if (!prs_uint32("bufferlen", ps, depth, &garbage))
238 if (!prs_uint32("bufferlenhi", ps, depth, &garbage))
240 if (!prs_uint32("pointer", ps, depth, &garbage))
243 if (!smb_io_time("logon_time", &info->logon_time, ps, depth))
245 if (!smb_io_time("logoff_time", &info->logoff_time, ps, depth))
247 if (!smb_io_time("kickoff_time", &info->kickoff_time, ps, depth))
249 if (!smb_io_time("pass_last_set_time", &info->pass_last_set_time,
252 if (!smb_io_time("pass_can_change_time", &info->pass_can_change_time,
255 if (!smb_io_time("pass_must_change_time", &info->pass_must_change_time,
259 if (!smb_io_unihdr("hdr_user_name", &info->hdr_user_name, ps, depth))
261 if (!smb_io_unihdr("hdr_full_name", &info->hdr_full_name, ps, depth))
263 if (!smb_io_unihdr("hdr_logon_script", &info->hdr_logon_script,
266 if (!smb_io_unihdr("hdr_profile_path", &info->hdr_profile_path,
269 if (!smb_io_unihdr("hdr_home_dir", &info->hdr_home_dir, ps, depth))
271 if (!smb_io_unihdr("hdr_dir_drive", &info->hdr_dir_drive, ps, depth))
274 if (!prs_uint16("logon_count", ps, depth, &info->logon_count))
276 if (!prs_uint16("reserved12", ps, depth, &info->reserved12))
278 if (!prs_uint32("user_rid", ps, depth, &info->user_rid))
280 if (!prs_uint32("group_rid", ps, depth, &info->group_rid))
282 if (!prs_uint32("group_count", ps, depth, &info->group_count))
284 /* I haven't seen this contain anything yet, but when it does
285 we will have to make sure we decode the contents in the middle
286 all the unistr2s ... */
287 if (!prs_uint32("group_mem_ptr", ps, depth,
288 &info->group_membership_ptr))
290 if (!prs_uint32("user_flags", ps, depth, &info->user_flags))
293 if (!prs_uint32("reserved13.0", ps, depth, &info->reserved13[0]))
295 if (!prs_uint32("reserved13.1", ps, depth, &info->reserved13[1]))
297 if (!prs_uint32("reserved13.2", ps, depth, &info->reserved13[2]))
299 if (!prs_uint32("reserved13.3", ps, depth, &info->reserved13[3]))
302 if (!smb_io_unihdr("hdr_dom_controller",
303 &info->hdr_dom_controller, ps, depth))
305 if (!smb_io_unihdr("hdr_dom_name", &info->hdr_dom_name, ps, depth))
308 /* this should be followed, but just get ptr for now */
309 if (!prs_uint32("ptr_dom_sid", ps, depth, &info->ptr_dom_sid))
312 if (!prs_uint32("reserved16.0", ps, depth, &info->reserved16[0]))
314 if (!prs_uint32("reserved16.1", ps, depth, &info->reserved16[1]))
317 /* might be acb_info */
318 if (!prs_uint32("reserved17", ps, depth, &info->reserved17))
322 if (!prs_uint32("reserved18.0", ps, depth, &info->reserved18[0]))
324 if (!prs_uint32("reserved18.1", ps, depth, &info->reserved18[1]))
326 if (!prs_uint32("reserved18.2", ps, depth, &info->reserved18[2]))
328 if (!prs_uint32("reserved18.3", ps, depth, &info->reserved18[3]))
330 if (!prs_uint32("reserved18.4", ps, depth, &info->reserved18[4]))
332 if (!prs_uint32("reserved18.5", ps, depth, &info->reserved18[5]))
334 if (!prs_uint32("reserved18.6", ps, depth, &info->reserved18[6]))
337 if (!prs_uint32("sid_count", ps, depth, &info->sid_count))
339 if (!prs_uint32("ptr_extra_sids", ps, depth, &info->ptr_extra_sids))
341 if (!prs_uint32("ptr_res_group_dom_sid", ps, depth,
342 &info->ptr_res_group_dom_sid))
344 if (!prs_uint32("res_group_count", ps, depth, &info->res_group_count))
346 if (!prs_uint32("ptr_res_groups", ps, depth, &info->ptr_res_groups))
349 if(!smb_io_unistr2("uni_user_name", &info->uni_user_name,
350 info->hdr_user_name.buffer, ps, depth))
352 if(!smb_io_unistr2("uni_full_name", &info->uni_full_name,
353 info->hdr_full_name.buffer, ps, depth))
355 if(!smb_io_unistr2("uni_logon_script", &info->uni_logon_script,
356 info->hdr_logon_script.buffer, ps, depth))
358 if(!smb_io_unistr2("uni_profile_path", &info->uni_profile_path,
359 info->hdr_profile_path.buffer, ps, depth))
361 if(!smb_io_unistr2("uni_home_dir", &info->uni_home_dir,
362 info->hdr_home_dir.buffer, ps, depth))
364 if(!smb_io_unistr2("uni_dir_drive", &info->uni_dir_drive,
365 info->hdr_dir_drive.buffer, ps, depth))
368 if (info->group_membership_ptr) {
369 if (!pac_io_group_membership_array("group membership",
377 if(!smb_io_unistr2("uni_dom_controller", &info->uni_dom_controller,
378 info->hdr_dom_controller.buffer, ps, depth))
380 if(!smb_io_unistr2("uni_dom_name", &info->uni_dom_name,
381 info->hdr_dom_name.buffer, ps, depth))
384 if(info->ptr_dom_sid)
385 if(!smb_io_dom_sid2("dom_sid", &info->dom_sid, ps, depth))
389 if (info->sid_count && info->ptr_extra_sids)
390 if (!pac_io_krb_sid_and_attr_array("extra_sids",
396 if (info->ptr_res_group_dom_sid)
397 if (!smb_io_dom_sid2("res_group_dom_sid",
398 &info->res_group_dom_sid, ps, depth))
401 if (info->ptr_res_groups)
402 if (!pac_io_group_membership_array("res group membership",
404 info->res_group_count,
412 static BOOL pac_io_pac_signature_data(const char *desc,
413 PAC_SIGNATURE_DATA *data, uint32 length,
414 prs_struct *ps, int depth)
416 uint32 siglen = length - sizeof(uint32);
420 prs_debug(ps, depth, desc, "pac_io_pac_signature_data");
423 if (!prs_uint32("type", ps, depth, &data->type))
425 if (UNMARSHALLING(ps)) {
426 data->signature = (unsigned char *)prs_alloc_mem(ps, siglen);
427 if (!data->signature) {
428 DEBUG(3, ("No memory available\n"));
432 if (!prs_uint8s(False, "signature", ps, depth, data->signature,siglen))
438 static BOOL pac_io_pac_info_hdr_ctr(const char *desc, PAC_INFO_HDR *hdr,
439 prs_struct *ps, int depth)
444 prs_debug(ps, depth, desc, "pac_io_pac_info_hdr_ctr");
450 if (hdr->offset != prs_offset(ps)) {
451 DEBUG(5, ("offset in header(x%x) and data(x%x) do not match\n",
452 hdr->offset, prs_offset(ps)));
453 prs_set_offset(ps, hdr->offset);
456 if (UNMARSHALLING(ps) && hdr->size > 0) {
457 hdr->ctr = (PAC_INFO_CTR *)
458 prs_alloc_mem(ps, sizeof(PAC_INFO_CTR));
460 DEBUG(3, ("No memory available\n"));
466 case PAC_TYPE_LOGON_INFO:
467 DEBUG(5, ("PAC_TYPE_LOGON_INFO\n"));
468 if (UNMARSHALLING(ps))
469 hdr->ctr->pac.logon_info = (PAC_LOGON_INFO *)
470 prs_alloc_mem(ps, sizeof(PAC_LOGON_INFO));
471 if (!hdr->ctr->pac.logon_info) {
472 DEBUG(3, ("No memory available\n"));
475 if (!pac_io_pac_logon_info(desc, hdr->ctr->pac.logon_info,
480 case PAC_TYPE_SERVER_CHECKSUM:
481 DEBUG(5, ("PAC_TYPE_SERVER_CHECKSUM\n"));
482 if (UNMARSHALLING(ps))
483 hdr->ctr->pac.srv_cksum = (PAC_SIGNATURE_DATA *)
484 prs_alloc_mem(ps, sizeof(PAC_SIGNATURE_DATA));
485 if (!hdr->ctr->pac.srv_cksum) {
486 DEBUG(3, ("No memory available\n"));
489 if (!pac_io_pac_signature_data(desc, hdr->ctr->pac.srv_cksum,
490 hdr->size, ps, depth))
494 case PAC_TYPE_PRIVSVR_CHECKSUM:
495 DEBUG(5, ("PAC_TYPE_PRIVSVR_CHECKSUM\n"));
496 if (UNMARSHALLING(ps))
497 hdr->ctr->pac.privsrv_cksum = (PAC_SIGNATURE_DATA *)
498 prs_alloc_mem(ps, sizeof(PAC_SIGNATURE_DATA));
499 if (!hdr->ctr->pac.privsrv_cksum) {
500 DEBUG(3, ("No memory available\n"));
503 if (!pac_io_pac_signature_data(desc,
504 hdr->ctr->pac.privsrv_cksum,
505 hdr->size, ps, depth))
509 case PAC_TYPE_UNKNOWN_10:
510 DEBUG(5, ("PAC_TYPE_UNKNOWN_10\n"));
511 if (UNMARSHALLING(ps))
512 hdr->ctr->pac.type_10 = (UNKNOWN_TYPE_10 *)
513 prs_alloc_mem(ps, sizeof(UNKNOWN_TYPE_10));
514 if (!hdr->ctr->pac.type_10) {
515 DEBUG(3, ("No memory available\n"));
518 if (!pac_io_unknown_type_10(desc, hdr->ctr->pac.type_10,
524 /* dont' know, so we need to skip it */
525 DEBUG(3, ("unknown PAC type %d\n", hdr->type));
526 prs_set_offset(ps, prs_offset(ps) + hdr->size);
532 static BOOL pac_io_pac_info_hdr(const char *desc, PAC_INFO_HDR *hdr,
533 prs_struct *ps, int depth)
538 prs_debug(ps, depth, desc, "pac_io_pac_info_hdr");
543 if (!prs_uint32("type", ps, depth, &hdr->type))
545 if (!prs_uint32("size", ps, depth, &hdr->size))
547 if (!prs_uint32("offset", ps, depth, &hdr->offset))
549 if (!prs_uint32("offsethi", ps, depth, &hdr->offsethi))
555 static BOOL pac_io_pac_data(const char *desc, PAC_DATA *data,
556 prs_struct *ps, int depth)
563 prs_debug(ps, depth, desc, "pac_io_pac_data");
568 if (!prs_uint32("num_buffers", ps, depth, &data->num_buffers))
570 if (!prs_uint32("version", ps, depth, &data->version))
573 if (UNMARSHALLING(ps) && data->num_buffers > 0) {
574 if ((data->pac_info_hdr_ptr = (PAC_INFO_HDR *)
575 prs_alloc_mem(ps, sizeof(PAC_INFO_HDR) *
576 data->num_buffers)) == NULL) {
581 for (i=0; i<data->num_buffers; i++) {
582 if (!pac_io_pac_info_hdr(desc, &data->pac_info_hdr_ptr[i], ps,
587 for (i=0; i<data->num_buffers; i++) {
588 if (!pac_io_pac_info_hdr_ctr(desc, &data->pac_info_hdr_ptr[i],
596 PAC_DATA *decode_pac_data(DATA_BLOB *auth_data, TALLOC_CTX *ctx)
598 DATA_BLOB pac_data_blob = unwrap_pac(auth_data);
602 DEBUG(5,("dump_pac_data\n"));
603 prs_init(&ps, pac_data_blob.length, ctx, UNMARSHALL);
604 prs_copy_data_in(&ps, (char *)pac_data_blob.data, pac_data_blob.length);
605 prs_set_offset(&ps, 0);
607 data_blob_free(&pac_data_blob);
609 pac_data = (PAC_DATA *) talloc_zero(ctx, sizeof(PAC_DATA));
610 pac_io_pac_data("pac data", pac_data, &ps, 0);