2 Unix SMB/CIFS implementation.
4 Create and parse the krb5 PAC
6 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005,2008
7 Copyright (C) Andrew Tridgell 2001
8 Copyright (C) Luke Howard 2002-2003
9 Copyright (C) Stefan Metzmacher 2004-2005
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 #include "system/kerberos.h"
28 #include "auth/auth.h"
29 #include "auth/kerberos/kerberos.h"
30 #include "librpc/gen_ndr/ndr_krb5pac.h"
31 #include "lib/ldb/include/ldb.h"
32 #include "auth/auth_sam_reply.h"
34 krb5_error_code check_pac_checksum(TALLOC_CTX *mem_ctx,
36 struct PAC_SIGNATURE_DATA *sig,
38 const krb5_keyblock *keyblock)
44 cksum.cksumtype = (CKSUMTYPE)sig->type;
45 cksum.checksum.length = sig->signature.length;
46 cksum.checksum.data = sig->signature.data;
48 ret = krb5_crypto_init(context,
53 DEBUG(0,("krb5_crypto_init() failed: %s\n",
54 smb_get_krb5_error_message(context, ret, mem_ctx)));
57 ret = krb5_verify_checksum(context,
63 krb5_crypto_destroy(context, crypto);
68 NTSTATUS kerberos_decode_pac(TALLOC_CTX *mem_ctx,
69 struct PAC_DATA **pac_data_out,
72 const krb5_keyblock *krbtgt_keyblock,
73 const krb5_keyblock *service_keyblock,
74 krb5_const_principal client_principal,
76 krb5_error_code *k5ret)
80 enum ndr_err_code ndr_err;
81 struct PAC_SIGNATURE_DATA *srv_sig_ptr = NULL;
82 struct PAC_SIGNATURE_DATA *kdc_sig_ptr = NULL;
83 struct PAC_SIGNATURE_DATA *srv_sig_wipe = NULL;
84 struct PAC_SIGNATURE_DATA *kdc_sig_wipe = NULL;
85 struct PAC_LOGON_INFO *logon_info = NULL;
86 struct PAC_LOGON_NAME *logon_name = NULL;
87 struct PAC_DATA *pac_data;
88 struct PAC_DATA_RAW *pac_data_raw;
90 DATA_BLOB *srv_sig_blob = NULL;
91 DATA_BLOB *kdc_sig_blob = NULL;
93 DATA_BLOB modified_pac_blob;
94 NTTIME tgs_authtime_nttime;
95 krb5_principal client_principal_pac;
98 krb5_clear_error_message(context);
101 *k5ret = KRB5_PARSE_MALFORMED;
104 pac_data = talloc(mem_ctx, struct PAC_DATA);
105 pac_data_raw = talloc(mem_ctx, struct PAC_DATA_RAW);
106 kdc_sig_wipe = talloc(mem_ctx, struct PAC_SIGNATURE_DATA);
107 srv_sig_wipe = talloc(mem_ctx, struct PAC_SIGNATURE_DATA);
108 if (!pac_data_raw || !pac_data || !kdc_sig_wipe || !srv_sig_wipe) {
112 return NT_STATUS_NO_MEMORY;
115 ndr_err = ndr_pull_struct_blob(&blob, pac_data,
116 pac_data, (ndr_pull_flags_fn_t)ndr_pull_PAC_DATA);
117 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
118 status = ndr_map_error2ntstatus(ndr_err);
119 DEBUG(0,("can't parse the PAC: %s\n",
124 if (pac_data->num_buffers < 4) {
125 /* we need logon_ingo, service_key and kdc_key */
126 DEBUG(0,("less than 4 PAC buffers\n"));
127 return NT_STATUS_INVALID_PARAMETER;
130 ndr_err = ndr_pull_struct_blob(&blob, pac_data_raw,
132 (ndr_pull_flags_fn_t)ndr_pull_PAC_DATA_RAW);
133 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
134 status = ndr_map_error2ntstatus(ndr_err);
135 DEBUG(0,("can't parse the PAC: %s\n",
140 if (pac_data_raw->num_buffers < 4) {
141 /* we need logon_ingo, service_key and kdc_key */
142 DEBUG(0,("less than 4 PAC buffers\n"));
143 return NT_STATUS_INVALID_PARAMETER;
146 if (pac_data->num_buffers != pac_data_raw->num_buffers) {
147 /* we need logon_ingo, service_key and kdc_key */
148 DEBUG(0,("misparse! PAC_DATA has %d buffers while PAC_DATA_RAW has %d\n",
149 pac_data->num_buffers, pac_data_raw->num_buffers));
150 return NT_STATUS_INVALID_PARAMETER;
153 for (i=0; i < pac_data->num_buffers; i++) {
154 if (pac_data->buffers[i].type != pac_data_raw->buffers[i].type) {
155 DEBUG(0,("misparse! PAC_DATA buffer %d has type %d while PAC_DATA_RAW has %d\n",
156 i, pac_data->buffers[i].type, pac_data->buffers[i].type));
157 return NT_STATUS_INVALID_PARAMETER;
159 switch (pac_data->buffers[i].type) {
160 case PAC_TYPE_LOGON_INFO:
161 if (!pac_data->buffers[i].info) {
164 logon_info = pac_data->buffers[i].info->logon_info.info;
166 case PAC_TYPE_SRV_CHECKSUM:
167 if (!pac_data->buffers[i].info) {
170 srv_sig_ptr = &pac_data->buffers[i].info->srv_cksum;
171 srv_sig_blob = &pac_data_raw->buffers[i].info->remaining;
173 case PAC_TYPE_KDC_CHECKSUM:
174 if (!pac_data->buffers[i].info) {
177 kdc_sig_ptr = &pac_data->buffers[i].info->kdc_cksum;
178 kdc_sig_blob = &pac_data_raw->buffers[i].info->remaining;
180 case PAC_TYPE_LOGON_NAME:
181 logon_name = &pac_data->buffers[i].info->logon_name;
189 DEBUG(0,("PAC no logon_info\n"));
190 return NT_STATUS_INVALID_PARAMETER;
194 DEBUG(0,("PAC no logon_name\n"));
195 return NT_STATUS_INVALID_PARAMETER;
198 if (!srv_sig_ptr || !srv_sig_blob) {
199 DEBUG(0,("PAC no srv_key\n"));
200 return NT_STATUS_INVALID_PARAMETER;
203 if (!kdc_sig_ptr || !kdc_sig_blob) {
204 DEBUG(0,("PAC no kdc_key\n"));
205 return NT_STATUS_INVALID_PARAMETER;
208 /* Find and zero out the signatures, as required by the signing algorithm */
210 /* We find the data blobs above, now we parse them to get at the exact portion we should zero */
211 ndr_err = ndr_pull_struct_blob(kdc_sig_blob, kdc_sig_wipe,
213 (ndr_pull_flags_fn_t)ndr_pull_PAC_SIGNATURE_DATA);
214 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
215 status = ndr_map_error2ntstatus(ndr_err);
216 DEBUG(0,("can't parse the KDC signature: %s\n",
221 ndr_err = ndr_pull_struct_blob(srv_sig_blob, srv_sig_wipe,
223 (ndr_pull_flags_fn_t)ndr_pull_PAC_SIGNATURE_DATA);
224 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
225 status = ndr_map_error2ntstatus(ndr_err);
226 DEBUG(0,("can't parse the SRV signature: %s\n",
231 /* Now zero the decoded structure */
232 memset(kdc_sig_wipe->signature.data, '\0', kdc_sig_wipe->signature.length);
233 memset(srv_sig_wipe->signature.data, '\0', srv_sig_wipe->signature.length);
235 /* and reencode, back into the same place it came from */
236 ndr_err = ndr_push_struct_blob(kdc_sig_blob, pac_data_raw,
238 (ndr_push_flags_fn_t)ndr_push_PAC_SIGNATURE_DATA);
239 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
240 status = ndr_map_error2ntstatus(ndr_err);
241 DEBUG(0,("can't repack the KDC signature: %s\n",
245 ndr_err = ndr_push_struct_blob(srv_sig_blob, pac_data_raw,
247 (ndr_push_flags_fn_t)ndr_push_PAC_SIGNATURE_DATA);
248 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
249 status = ndr_map_error2ntstatus(ndr_err);
250 DEBUG(0,("can't repack the SRV signature: %s\n",
255 /* push out the whole structure, but now with zero'ed signatures */
256 ndr_err = ndr_push_struct_blob(&modified_pac_blob, pac_data_raw,
258 (ndr_push_flags_fn_t)ndr_push_PAC_DATA_RAW);
259 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
260 status = ndr_map_error2ntstatus(ndr_err);
261 DEBUG(0,("can't repack the RAW PAC: %s\n",
266 /* verify by service_key */
267 ret = check_pac_checksum(mem_ctx,
268 modified_pac_blob, srv_sig_ptr,
272 DEBUG(1, ("PAC Decode: Failed to verify the service signature: %s\n",
273 smb_get_krb5_error_message(context, ret, mem_ctx)));
277 return NT_STATUS_ACCESS_DENIED;
280 if (krbtgt_keyblock) {
281 ret = check_pac_checksum(mem_ctx,
282 srv_sig_ptr->signature, kdc_sig_ptr,
283 context, krbtgt_keyblock);
285 DEBUG(1, ("PAC Decode: Failed to verify the KDC signature: %s\n",
286 smb_get_krb5_error_message(context, ret, mem_ctx)));
290 return NT_STATUS_ACCESS_DENIED;
294 /* Convert to NT time, so as not to loose accuracy in comparison */
295 unix_to_nt_time(&tgs_authtime_nttime, tgs_authtime);
297 if (tgs_authtime_nttime != logon_name->logon_time) {
298 DEBUG(2, ("PAC Decode: Logon time mismatch between ticket and PAC!\n"));
299 DEBUG(2, ("PAC Decode: PAC: %s\n", nt_time_string(mem_ctx, logon_name->logon_time)));
300 DEBUG(2, ("PAC Decode: Ticket: %s\n", nt_time_string(mem_ctx, tgs_authtime_nttime)));
301 return NT_STATUS_ACCESS_DENIED;
304 ret = krb5_parse_name_flags(context, logon_name->account_name, KRB5_PRINCIPAL_PARSE_NO_REALM,
305 &client_principal_pac);
307 DEBUG(2, ("Could not parse name from incoming PAC: [%s]: %s\n",
308 logon_name->account_name,
309 smb_get_krb5_error_message(context, ret, mem_ctx)));
313 return NT_STATUS_INVALID_PARAMETER;
316 if (!krb5_principal_compare_any_realm(context, client_principal, client_principal_pac)) {
317 DEBUG(2, ("Name in PAC [%s] does not match principal name in ticket\n",
318 logon_name->account_name));
319 return NT_STATUS_ACCESS_DENIED;
323 if (strcasecmp(logon_info->info3.base.account_name.string,
324 "Administrator")== 0) {
325 file_save("tmp_pac_data-admin.dat",blob.data,blob.length);
329 DEBUG(3,("Found account name from PAC: %s [%s]\n",
330 logon_info->info3.base.account_name.string,
331 logon_info->info3.base.full_name.string));
332 *pac_data_out = pac_data;
337 _PUBLIC_ NTSTATUS kerberos_pac_logon_info(TALLOC_CTX *mem_ctx,
338 struct PAC_LOGON_INFO **logon_info,
340 krb5_context context,
341 const krb5_keyblock *krbtgt_keyblock,
342 const krb5_keyblock *service_keyblock,
343 krb5_const_principal client_principal,
345 krb5_error_code *k5ret)
348 struct PAC_DATA *pac_data;
350 nt_status = kerberos_decode_pac(mem_ctx,
359 if (!NT_STATUS_IS_OK(nt_status)) {
364 for (i=0; i < pac_data->num_buffers; i++) {
365 if (pac_data->buffers[i].type != PAC_TYPE_LOGON_INFO) {
368 *logon_info = pac_data->buffers[i].info->logon_info.info;
371 return NT_STATUS_INVALID_PARAMETER;
376 static krb5_error_code make_pac_checksum(TALLOC_CTX *mem_ctx,
378 struct PAC_SIGNATURE_DATA *sig,
379 krb5_context context,
380 const krb5_keyblock *keyblock)
387 ret = krb5_crypto_init(context,
392 DEBUG(0,("krb5_crypto_init() failed: %s\n",
393 smb_get_krb5_error_message(context, ret, mem_ctx)));
396 ret = krb5_create_checksum(context,
404 DEBUG(2, ("PAC Verification failed: %s\n",
405 smb_get_krb5_error_message(context, ret, mem_ctx)));
408 krb5_crypto_destroy(context, crypto);
414 sig->type = cksum.cksumtype;
415 sig->signature = data_blob_talloc(mem_ctx, cksum.checksum.data, cksum.checksum.length);
416 free_Checksum(&cksum);
421 krb5_error_code kerberos_encode_pac(TALLOC_CTX *mem_ctx,
422 struct PAC_DATA *pac_data,
423 krb5_context context,
424 const krb5_keyblock *krbtgt_keyblock,
425 const krb5_keyblock *service_keyblock,
430 enum ndr_err_code ndr_err;
431 DATA_BLOB zero_blob = data_blob(NULL, 0);
432 DATA_BLOB tmp_blob = data_blob(NULL, 0);
433 struct PAC_SIGNATURE_DATA *kdc_checksum = NULL;
434 struct PAC_SIGNATURE_DATA *srv_checksum = NULL;
437 /* First, just get the keytypes filled in (and lengths right, eventually) */
438 for (i=0; i < pac_data->num_buffers; i++) {
439 if (pac_data->buffers[i].type != PAC_TYPE_KDC_CHECKSUM) {
442 kdc_checksum = &pac_data->buffers[i].info->kdc_cksum,
443 ret = make_pac_checksum(mem_ctx, &zero_blob,
445 context, krbtgt_keyblock);
447 DEBUG(2, ("making krbtgt PAC checksum failed: %s\n",
448 smb_get_krb5_error_message(context, ret, mem_ctx)));
449 talloc_free(pac_data);
454 for (i=0; i < pac_data->num_buffers; i++) {
455 if (pac_data->buffers[i].type != PAC_TYPE_SRV_CHECKSUM) {
458 srv_checksum = &pac_data->buffers[i].info->srv_cksum;
459 ret = make_pac_checksum(mem_ctx, &zero_blob,
461 context, service_keyblock);
463 DEBUG(2, ("making service PAC checksum failed: %s\n",
464 smb_get_krb5_error_message(context, ret, mem_ctx)));
465 talloc_free(pac_data);
471 DEBUG(2, ("Invalid PAC constructed for signing, no KDC checksum present!"));
475 DEBUG(2, ("Invalid PAC constructed for signing, no SRV checksum present!"));
479 /* But wipe out the actual signatures */
480 memset(kdc_checksum->signature.data, '\0', kdc_checksum->signature.length);
481 memset(srv_checksum->signature.data, '\0', srv_checksum->signature.length);
483 ndr_err = ndr_push_struct_blob(&tmp_blob, mem_ctx,
485 (ndr_push_flags_fn_t)ndr_push_PAC_DATA);
486 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
487 nt_status = ndr_map_error2ntstatus(ndr_err);
488 DEBUG(1, ("PAC (presig) push failed: %s\n", nt_errstr(nt_status)));
489 talloc_free(pac_data);
493 /* Then sign the result of the previous push, where the sig was zero'ed out */
494 ret = make_pac_checksum(mem_ctx, &tmp_blob, srv_checksum,
495 context, service_keyblock);
497 /* Then sign Server checksum */
498 ret = make_pac_checksum(mem_ctx, &srv_checksum->signature, kdc_checksum, context, krbtgt_keyblock);
500 DEBUG(2, ("making krbtgt PAC checksum failed: %s\n",
501 smb_get_krb5_error_message(context, ret, mem_ctx)));
502 talloc_free(pac_data);
506 /* And push it out again, this time to the world. This relies on determanistic pointer values */
507 ndr_err = ndr_push_struct_blob(&tmp_blob, mem_ctx,
509 (ndr_push_flags_fn_t)ndr_push_PAC_DATA);
510 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
511 nt_status = ndr_map_error2ntstatus(ndr_err);
512 DEBUG(1, ("PAC (final) push failed: %s\n", nt_errstr(nt_status)));
513 talloc_free(pac_data);
523 krb5_error_code kerberos_create_pac(TALLOC_CTX *mem_ctx,
524 struct auth_serversupplied_info *server_info,
525 krb5_context context,
526 const krb5_keyblock *krbtgt_keyblock,
527 const krb5_keyblock *service_keyblock,
528 krb5_principal client_principal,
534 struct PAC_DATA *pac_data = talloc(mem_ctx, struct PAC_DATA);
535 struct netr_SamInfo3 *sam3;
536 union PAC_INFO *u_LOGON_INFO;
537 struct PAC_LOGON_INFO *LOGON_INFO;
538 union PAC_INFO *u_LOGON_NAME;
539 struct PAC_LOGON_NAME *LOGON_NAME;
540 union PAC_INFO *u_KDC_CHECKSUM;
541 union PAC_INFO *u_SRV_CHECKSUM;
546 PAC_BUF_LOGON_INFO = 0,
547 PAC_BUF_LOGON_NAME = 1,
548 PAC_BUF_SRV_CHECKSUM = 2,
549 PAC_BUF_KDC_CHECKSUM = 3,
550 PAC_BUF_NUM_BUFFERS = 4
557 pac_data->num_buffers = PAC_BUF_NUM_BUFFERS;
558 pac_data->version = 0;
560 pac_data->buffers = talloc_array(pac_data,
562 pac_data->num_buffers);
563 if (!pac_data->buffers) {
564 talloc_free(pac_data);
569 u_LOGON_INFO = talloc_zero(pac_data->buffers, union PAC_INFO);
571 talloc_free(pac_data);
574 pac_data->buffers[PAC_BUF_LOGON_INFO].type = PAC_TYPE_LOGON_INFO;
575 pac_data->buffers[PAC_BUF_LOGON_INFO].info = u_LOGON_INFO;
578 u_LOGON_NAME = talloc_zero(pac_data->buffers, union PAC_INFO);
580 talloc_free(pac_data);
583 pac_data->buffers[PAC_BUF_LOGON_NAME].type = PAC_TYPE_LOGON_NAME;
584 pac_data->buffers[PAC_BUF_LOGON_NAME].info = u_LOGON_NAME;
585 LOGON_NAME = &u_LOGON_NAME->logon_name;
588 u_SRV_CHECKSUM = talloc_zero(pac_data->buffers, union PAC_INFO);
589 if (!u_SRV_CHECKSUM) {
590 talloc_free(pac_data);
593 pac_data->buffers[PAC_BUF_SRV_CHECKSUM].type = PAC_TYPE_SRV_CHECKSUM;
594 pac_data->buffers[PAC_BUF_SRV_CHECKSUM].info = u_SRV_CHECKSUM;
597 u_KDC_CHECKSUM = talloc_zero(pac_data->buffers, union PAC_INFO);
598 if (!u_KDC_CHECKSUM) {
599 talloc_free(pac_data);
602 pac_data->buffers[PAC_BUF_KDC_CHECKSUM].type = PAC_TYPE_KDC_CHECKSUM;
603 pac_data->buffers[PAC_BUF_KDC_CHECKSUM].info = u_KDC_CHECKSUM;
605 /* now the real work begins... */
607 LOGON_INFO = talloc_zero(u_LOGON_INFO, struct PAC_LOGON_INFO);
609 talloc_free(pac_data);
612 nt_status = auth_convert_server_info_saminfo3(LOGON_INFO, server_info, &sam3);
613 if (!NT_STATUS_IS_OK(nt_status)) {
614 DEBUG(1, ("Getting Samba info failed: %s\n", nt_errstr(nt_status)));
615 talloc_free(pac_data);
619 u_LOGON_INFO->logon_info.info = LOGON_INFO;
620 LOGON_INFO->info3 = *sam3;
622 ret = krb5_unparse_name_flags(context, client_principal,
623 KRB5_PRINCIPAL_UNPARSE_NO_REALM, &name);
627 LOGON_NAME->account_name = talloc_strdup(LOGON_NAME, name);
630 this logon_time field is absolutely critical. This is what
631 caused all our PAC troubles :-)
633 unix_to_nt_time(&LOGON_NAME->logon_time, tgs_authtime);
635 ret = kerberos_encode_pac(mem_ctx,
641 talloc_free(pac_data);
645 krb5_error_code kerberos_pac_to_server_info(TALLOC_CTX *mem_ctx,
647 krb5_context context,
648 struct auth_serversupplied_info **server_info)
651 enum ndr_err_code ndr_err;
654 DATA_BLOB pac_logon_info_in, pac_srv_checksum_in, pac_kdc_checksum_in;
655 krb5_data k5pac_logon_info_in, k5pac_srv_checksum_in, k5pac_kdc_checksum_in;
658 struct auth_serversupplied_info *server_info_out;
660 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
666 ret = krb5_pac_get_buffer(context, pac, PAC_TYPE_LOGON_INFO, &k5pac_logon_info_in);
668 talloc_free(tmp_ctx);
672 pac_logon_info_in = data_blob_const(k5pac_logon_info_in.data, k5pac_logon_info_in.length);
674 ndr_err = ndr_pull_union_blob(&pac_logon_info_in, tmp_ctx, &info,
676 (ndr_pull_flags_fn_t)ndr_pull_PAC_INFO);
677 krb5_data_free(&k5pac_logon_info_in);
678 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err) || !info.logon_info.info) {
679 nt_status = ndr_map_error2ntstatus(ndr_err);
680 DEBUG(0,("can't parse the PAC LOGON_INFO: %s\n", nt_errstr(nt_status)));
681 talloc_free(tmp_ctx);
685 /* Pull this right into the normal auth sysstem structures */
686 nt_status = make_server_info_pac(mem_ctx,
687 info.logon_info.info,
689 if (!NT_STATUS_IS_OK(nt_status)) {
690 talloc_free(tmp_ctx);
694 ret = krb5_pac_get_buffer(context, pac, PAC_TYPE_SRV_CHECKSUM, &k5pac_srv_checksum_in);
696 talloc_free(tmp_ctx);
700 pac_srv_checksum_in = data_blob_const(k5pac_srv_checksum_in.data, k5pac_srv_checksum_in.length);
702 ndr_err = ndr_pull_struct_blob(&pac_srv_checksum_in, server_info_out,
703 &server_info_out->pac_srv_sig,
704 (ndr_pull_flags_fn_t)ndr_pull_PAC_SIGNATURE_DATA);
705 krb5_data_free(&k5pac_srv_checksum_in);
706 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
707 nt_status = ndr_map_error2ntstatus(ndr_err);
708 DEBUG(0,("can't parse the KDC signature: %s\n",
709 nt_errstr(nt_status)));
713 ret = krb5_pac_get_buffer(context, pac, PAC_TYPE_KDC_CHECKSUM, &k5pac_kdc_checksum_in);
715 talloc_free(tmp_ctx);
719 pac_kdc_checksum_in = data_blob_const(k5pac_kdc_checksum_in.data, k5pac_kdc_checksum_in.length);
721 ndr_err = ndr_pull_struct_blob(&pac_kdc_checksum_in, server_info_out,
722 &server_info_out->pac_kdc_sig,
723 (ndr_pull_flags_fn_t)ndr_pull_PAC_SIGNATURE_DATA);
724 krb5_data_free(&k5pac_kdc_checksum_in);
725 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
726 nt_status = ndr_map_error2ntstatus(ndr_err);
727 DEBUG(0,("can't parse the KDC signature: %s\n",
728 nt_errstr(nt_status)));
732 *server_info = server_info_out;
738 NTSTATUS kerberos_pac_blob_to_server_info(TALLOC_CTX *mem_ctx,
740 krb5_context context,
741 struct auth_serversupplied_info **server_info)
745 ret = krb5_pac_parse(context,
746 pac_blob.data, pac_blob.length,
749 return map_nt_error_from_unix(ret);
753 ret = kerberos_pac_to_server_info(mem_ctx, pac, context, server_info);
754 krb5_pac_free(context, pac);
756 return map_nt_error_from_unix(ret);