2 Unix SMB/CIFS implementation.
3 simple kerberos5 routines for active directory
4 Copyright (C) Andrew Tridgell 2001
5 Copyright (C) Luke Howard 2002-2003
6 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
7 Copyright (C) Guenther Deschner 2005
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #define KRB5_PRIVATE 1 /* this file uses PRIVATE interfaces! */
25 #define KRB5_DEPRECATED 1 /* this file uses DEPRECATED interfaces! */
31 #ifdef HAVE_KRB5_KEYBLOCK_KEYVALUE
32 #define KRB5_KEY_TYPE(k) ((k)->keytype)
33 #define KRB5_KEY_LENGTH(k) ((k)->keyvalue.length)
34 #define KRB5_KEY_DATA(k) ((k)->keyvalue.data)
36 #define KRB5_KEY_TYPE(k) ((k)->enctype)
37 #define KRB5_KEY_LENGTH(k) ((k)->length)
38 #define KRB5_KEY_DATA(k) ((k)->contents)
39 #endif /* HAVE_KRB5_KEYBLOCK_KEYVALUE */
41 /**************************************************************
42 Wrappers around kerberos string functions that convert from
43 utf8 -> unix charset and vica versa.
44 **************************************************************/
46 /**************************************************************
47 krb5_parse_name that takes a UNIX charset.
48 **************************************************************/
50 krb5_error_code smb_krb5_parse_name(krb5_context context,
51 const char *name, /* in unix charset */
52 krb5_principal *principal)
57 if (push_utf8_allocate(&utf8_name, name) == (size_t)-1) {
61 ret = krb5_parse_name(context, utf8_name, principal);
66 #ifdef HAVE_KRB5_PARSE_NAME_NOREALM
67 /**************************************************************
68 krb5_parse_name_norealm that takes a UNIX charset.
69 **************************************************************/
71 static krb5_error_code smb_krb5_parse_name_norealm_conv(krb5_context context,
72 const char *name, /* in unix charset */
73 krb5_principal *principal)
78 if (push_utf8_allocate(&utf8_name, name) == (size_t)-1) {
82 ret = krb5_parse_name_norealm(context, utf8_name, principal);
88 /**************************************************************
89 krb5_parse_name that returns a UNIX charset name. Must
90 be freed with normal free() call.
91 **************************************************************/
93 krb5_error_code smb_krb5_unparse_name(krb5_context context,
94 krb5_const_principal principal,
100 ret = krb5_unparse_name(context, principal, &utf8_name);
105 if (pull_utf8_allocate(unix_name, utf8_name)==-1) {
106 krb5_free_unparsed_name(context, utf8_name);
109 krb5_free_unparsed_name(context, utf8_name);
113 #ifndef HAVE_KRB5_SET_REAL_TIME
115 * Thir function is not in the Heimdal mainline.
117 krb5_error_code krb5_set_real_time(krb5_context context, int32_t seconds, int32_t microseconds)
122 ret = krb5_us_timeofday(context, &sec, &usec);
126 context->kdc_sec_offset = seconds - sec;
127 context->kdc_usec_offset = microseconds - usec;
133 #if defined(HAVE_KRB5_SET_DEFAULT_IN_TKT_ETYPES) && !defined(HAVE_KRB5_SET_DEFAULT_TGS_KTYPES)
134 krb5_error_code krb5_set_default_tgs_ktypes(krb5_context ctx, const krb5_enctype *enc)
136 return krb5_set_default_in_tkt_etypes(ctx, enc);
140 #if defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS)
142 void setup_kaddr( krb5_address *pkaddr, struct sockaddr *paddr)
144 pkaddr->addr_type = KRB5_ADDRESS_INET;
145 pkaddr->address.length = sizeof(((struct sockaddr_in *)paddr)->sin_addr);
146 pkaddr->address.data = (char *)&(((struct sockaddr_in *)paddr)->sin_addr);
148 #elif defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS)
150 void setup_kaddr( krb5_address *pkaddr, struct sockaddr *paddr)
152 pkaddr->addrtype = ADDRTYPE_INET;
153 pkaddr->length = sizeof(((struct sockaddr_in *)paddr)->sin_addr);
154 pkaddr->contents = (krb5_octet *)&(((struct sockaddr_in *)paddr)->sin_addr);
157 #error UNKNOWN_ADDRTYPE
160 #if defined(HAVE_KRB5_PRINCIPAL2SALT) && defined(HAVE_KRB5_USE_ENCTYPE) && defined(HAVE_KRB5_STRING_TO_KEY) && defined(HAVE_KRB5_ENCRYPT_BLOCK)
161 int create_kerberos_key_from_string_direct(krb5_context context,
162 krb5_principal host_princ,
165 krb5_enctype enctype)
169 krb5_encrypt_block eblock;
171 ret = krb5_principal2salt(context, host_princ, &salt);
173 DEBUG(1,("krb5_principal2salt failed (%s)\n", error_message(ret)));
176 krb5_use_enctype(context, &eblock, enctype);
177 ret = krb5_string_to_key(context, &eblock, key, password, &salt);
178 SAFE_FREE(salt.data);
181 #elif defined(HAVE_KRB5_GET_PW_SALT) && defined(HAVE_KRB5_STRING_TO_KEY_SALT)
182 int create_kerberos_key_from_string_direct(krb5_context context,
183 krb5_principal host_princ,
186 krb5_enctype enctype)
191 ret = krb5_get_pw_salt(context, host_princ, &salt);
193 DEBUG(1,("krb5_get_pw_salt failed (%s)\n", error_message(ret)));
197 ret = krb5_string_to_key_salt(context, enctype, password->data, salt, key);
198 krb5_free_salt(context, salt);
202 #error UNKNOWN_CREATE_KEY_FUNCTIONS
205 int create_kerberos_key_from_string(krb5_context context,
206 krb5_principal host_princ,
209 krb5_enctype enctype)
211 krb5_principal salt_princ = NULL;
214 * Check if we've determined that the KDC is salting keys for this
215 * principal/enctype in a non-obvious way. If it is, try to match
218 salt_princ = kerberos_fetch_salt_princ_for_host_princ(context, host_princ, enctype);
219 ret = create_kerberos_key_from_string_direct(context, salt_princ ? salt_princ : host_princ, password, key, enctype);
221 krb5_free_principal(context, salt_princ);
226 #if defined(HAVE_KRB5_GET_PERMITTED_ENCTYPES)
227 krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
228 krb5_enctype **enctypes)
230 return krb5_get_permitted_enctypes(context, enctypes);
232 #elif defined(HAVE_KRB5_GET_DEFAULT_IN_TKT_ETYPES)
233 krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
234 krb5_enctype **enctypes)
236 return krb5_get_default_in_tkt_etypes(context, enctypes);
239 #error UNKNOWN_GET_ENCTYPES_FUNCTIONS
242 void free_kerberos_etypes(krb5_context context,
243 krb5_enctype *enctypes)
245 #if defined(HAVE_KRB5_FREE_KTYPES)
246 krb5_free_ktypes(context, enctypes);
254 #if defined(HAVE_KRB5_AUTH_CON_SETKEY) && !defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY)
255 krb5_error_code krb5_auth_con_setuseruserkey(krb5_context context,
256 krb5_auth_context auth_context,
257 krb5_keyblock *keyblock)
259 return krb5_auth_con_setkey(context, auth_context, keyblock);
263 BOOL unwrap_pac(TALLOC_CTX *mem_ctx, DATA_BLOB *auth_data, DATA_BLOB *unwrapped_pac_data)
265 DATA_BLOB pac_contents;
269 if (!auth_data->length) {
273 asn1_load(&data, *auth_data);
274 asn1_start_tag(&data, ASN1_SEQUENCE(0));
275 asn1_start_tag(&data, ASN1_SEQUENCE(0));
276 asn1_start_tag(&data, ASN1_CONTEXT(0));
277 asn1_read_Integer(&data, &data_type);
279 if (data_type != KRB5_AUTHDATA_WIN2K_PAC ) {
280 DEBUG(10,("authorization data is not a Windows PAC (type: %d)\n", data_type));
286 asn1_start_tag(&data, ASN1_CONTEXT(1));
287 asn1_read_OctetString(&data, &pac_contents);
293 *unwrapped_pac_data = data_blob_talloc(mem_ctx, pac_contents.data, pac_contents.length);
295 data_blob_free(&pac_contents);
300 BOOL get_auth_data_from_tkt(TALLOC_CTX *mem_ctx, DATA_BLOB *auth_data, krb5_ticket *tkt)
302 DATA_BLOB auth_data_wrapped;
303 BOOL got_auth_data_pac = False;
306 #if defined(HAVE_KRB5_TKT_ENC_PART2)
307 if (tkt->enc_part2 && tkt->enc_part2->authorization_data &&
308 tkt->enc_part2->authorization_data[0] &&
309 tkt->enc_part2->authorization_data[0]->length)
311 for (i = 0; tkt->enc_part2->authorization_data[i] != NULL; i++) {
313 if (tkt->enc_part2->authorization_data[i]->ad_type !=
314 KRB5_AUTHDATA_IF_RELEVANT) {
315 DEBUG(10,("get_auth_data_from_tkt: ad_type is %d\n",
316 tkt->enc_part2->authorization_data[i]->ad_type));
320 auth_data_wrapped = data_blob(tkt->enc_part2->authorization_data[i]->contents,
321 tkt->enc_part2->authorization_data[i]->length);
323 /* check if it is a PAC */
324 got_auth_data_pac = unwrap_pac(mem_ctx, &auth_data_wrapped, auth_data);
325 data_blob_free(&auth_data_wrapped);
327 if (!got_auth_data_pac) {
332 return got_auth_data_pac;
336 if (tkt->ticket.authorization_data &&
337 tkt->ticket.authorization_data->len)
339 for (i = 0; i < tkt->ticket.authorization_data->len; i++) {
341 if (tkt->ticket.authorization_data->val[i].ad_type !=
342 KRB5_AUTHDATA_IF_RELEVANT) {
343 DEBUG(10,("get_auth_data_from_tkt: ad_type is %d\n",
344 tkt->ticket.authorization_data->val[i].ad_type));
348 auth_data_wrapped = data_blob(tkt->ticket.authorization_data->val[i].ad_data.data,
349 tkt->ticket.authorization_data->val[i].ad_data.length);
351 /* check if it is a PAC */
352 got_auth_data_pac = unwrap_pac(mem_ctx, &auth_data_wrapped, auth_data);
353 data_blob_free(&auth_data_wrapped);
355 if (!got_auth_data_pac) {
360 return got_auth_data_pac;
366 krb5_const_principal get_principal_from_tkt(krb5_ticket *tkt)
368 #if defined(HAVE_KRB5_TKT_ENC_PART2)
369 return tkt->enc_part2->client;
375 #if !defined(HAVE_KRB5_LOCATE_KDC)
376 krb5_error_code krb5_locate_kdc(krb5_context ctx, const krb5_data *realm, struct sockaddr **addr_pp, int *naddrs, int get_masters)
378 krb5_krbhst_handle hnd;
379 krb5_krbhst_info *hinfo;
388 rc = krb5_krbhst_init(ctx, realm->data, KRB5_KRBHST_KDC, &hnd);
390 DEBUG(0, ("krb5_locate_kdc: krb5_krbhst_init failed (%s)\n", error_message(rc)));
394 for ( num_kdcs = 0; (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); num_kdcs++)
397 krb5_krbhst_reset(ctx, hnd);
400 DEBUG(0, ("krb5_locate_kdc: zero kdcs found !\n"));
401 krb5_krbhst_free(ctx, hnd);
405 sa = SMB_MALLOC_ARRAY( struct sockaddr, num_kdcs );
407 DEBUG(0, ("krb5_locate_kdc: malloc failed\n"));
408 krb5_krbhst_free(ctx, hnd);
413 memset(sa, '\0', sizeof(struct sockaddr) * num_kdcs );
415 for (i = 0; i < num_kdcs && (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); i++) {
417 #if defined(HAVE_KRB5_KRBHST_GET_ADDRINFO)
418 rc = krb5_krbhst_get_addrinfo(ctx, hinfo, &ai);
420 DEBUG(0,("krb5_krbhst_get_addrinfo failed: %s\n", error_message(rc)));
424 if (hinfo->ai && hinfo->ai->ai_family == AF_INET)
425 memcpy(&sa[i], hinfo->ai->ai_addr, sizeof(struct sockaddr));
428 krb5_krbhst_free(ctx, hnd);
436 #if !defined(HAVE_KRB5_FREE_UNPARSED_NAME)
437 void krb5_free_unparsed_name(krb5_context context, char *val)
443 void kerberos_free_data_contents(krb5_context context, krb5_data *pdata)
445 #if defined(HAVE_KRB5_FREE_DATA_CONTENTS)
447 krb5_free_data_contents(context, pdata);
450 SAFE_FREE(pdata->data);
454 void kerberos_set_creds_enctype(krb5_creds *pcreds, int enctype)
456 #if defined(HAVE_KRB5_KEYBLOCK_IN_CREDS)
457 KRB5_KEY_TYPE((&pcreds->keyblock)) = enctype;
458 #elif defined(HAVE_KRB5_SESSION_IN_CREDS)
459 KRB5_KEY_TYPE((&pcreds->session)) = enctype;
461 #error UNKNOWN_KEYBLOCK_MEMBER_IN_KRB5_CREDS_STRUCT
465 BOOL kerberos_compatible_enctypes(krb5_context context,
466 krb5_enctype enctype1,
467 krb5_enctype enctype2)
469 #if defined(HAVE_KRB5_C_ENCTYPE_COMPARE)
470 krb5_boolean similar = 0;
472 krb5_c_enctype_compare(context, enctype1, enctype2, &similar);
473 return similar ? True : False;
474 #elif defined(HAVE_KRB5_ENCTYPES_COMPATIBLE_KEYS)
475 return krb5_enctypes_compatible_keys(context, enctype1, enctype2) ? True : False;
479 static BOOL ads_cleanup_expired_creds(krb5_context context,
483 krb5_error_code retval;
484 const char *cc_type = krb5_cc_get_type(context, ccache);
486 DEBUG(3, ("ads_cleanup_expired_creds: Ticket in ccache[%s:%s] expiration %s\n",
487 cc_type, krb5_cc_get_name(context, ccache),
488 http_timestring(credsp->times.endtime)));
490 /* we will probably need new tickets if the current ones
491 will expire within 10 seconds.
493 if (credsp->times.endtime >= (time(NULL) + 10))
496 /* heimdal won't remove creds from a file ccache, and
497 perhaps we shouldn't anyway, since internally we
498 use memory ccaches, and a FILE one probably means that
499 we're using creds obtained outside of our exectuable
501 if (strequal(cc_type, "FILE")) {
502 DEBUG(5, ("ads_cleanup_expired_creds: We do not remove creds from a %s ccache\n", cc_type));
506 retval = krb5_cc_remove_cred(context, ccache, 0, credsp);
508 DEBUG(1, ("ads_cleanup_expired_creds: krb5_cc_remove_cred failed, err %s\n",
509 error_message(retval)));
510 /* If we have an error in this, we want to display it,
511 but continue as though we deleted it */
517 we can't use krb5_mk_req because w2k wants the service to be in a particular format
519 static krb5_error_code ads_krb5_mk_req(krb5_context context,
520 krb5_auth_context *auth_context,
521 const krb5_flags ap_req_options,
522 const char *principal,
526 krb5_error_code retval;
527 krb5_principal server;
531 BOOL creds_ready = False;
532 int i = 0, maxtries = 3;
534 retval = smb_krb5_parse_name(context, principal, &server);
536 DEBUG(1,("ads_krb5_mk_req: Failed to parse principal %s\n", principal));
540 /* obtain ticket & session key */
542 if ((retval = krb5_copy_principal(context, server, &creds.server))) {
543 DEBUG(1,("ads_krb5_mk_req: krb5_copy_principal failed (%s)\n",
544 error_message(retval)));
548 if ((retval = krb5_cc_get_principal(context, ccache, &creds.client))) {
549 /* This can commonly fail on smbd startup with no ticket in the cache.
550 * Report at higher level than 1. */
551 DEBUG(3,("ads_krb5_mk_req: krb5_cc_get_principal failed (%s)\n",
552 error_message(retval)));
556 while (!creds_ready && (i < maxtries)) {
557 if ((retval = krb5_get_credentials(context, 0, ccache,
559 DEBUG(1,("ads_krb5_mk_req: krb5_get_credentials failed for %s (%s)\n",
560 principal, error_message(retval)));
564 /* cope with ticket being in the future due to clock skew */
565 if ((unsigned)credsp->times.starttime > time(NULL)) {
566 time_t t = time(NULL);
567 int time_offset =(int)((unsigned)credsp->times.starttime-t);
568 DEBUG(4,("ads_krb5_mk_req: Advancing clock by %d seconds to cope with clock skew\n", time_offset));
569 krb5_set_real_time(context, t + time_offset + 1, 0);
572 if (!ads_cleanup_expired_creds(context, ccache, credsp))
578 DEBUG(10,("ads_krb5_mk_req: Ticket (%s) in ccache (%s:%s) is valid until: (%s - %u)\n",
579 principal, krb5_cc_get_type(context, ccache), krb5_cc_get_name(context, ccache),
580 http_timestring((unsigned)credsp->times.endtime),
581 (unsigned)credsp->times.endtime));
584 retval = krb5_mk_req_extended(context, auth_context, ap_req_options,
585 &in_data, credsp, outbuf);
587 DEBUG(1,("ads_krb5_mk_req: krb5_mk_req_extended failed (%s)\n",
588 error_message(retval)));
591 krb5_free_creds(context, credsp);
594 krb5_free_cred_contents(context, &creds);
597 krb5_free_principal(context, server);
603 get a kerberos5 ticket for the given service
605 int cli_krb5_get_ticket(const char *principal, time_t time_offset,
606 DATA_BLOB *ticket, DATA_BLOB *session_key_krb5,
607 uint32 extra_ap_opts, const char *ccname)
609 krb5_error_code retval;
611 krb5_context context = NULL;
612 krb5_ccache ccdef = NULL;
613 krb5_auth_context auth_context = NULL;
614 krb5_enctype enc_types[] = {
615 #ifdef ENCTYPE_ARCFOUR_HMAC
616 ENCTYPE_ARCFOUR_HMAC,
622 initialize_krb5_error_table();
623 retval = krb5_init_context(&context);
625 DEBUG(1,("cli_krb5_get_ticket: krb5_init_context failed (%s)\n",
626 error_message(retval)));
630 if (time_offset != 0) {
631 krb5_set_real_time(context, time(NULL) + time_offset, 0);
634 if ((retval = krb5_cc_resolve(context, ccname ?
635 ccname : krb5_cc_default_name(context), &ccdef))) {
636 DEBUG(1,("cli_krb5_get_ticket: krb5_cc_default failed (%s)\n",
637 error_message(retval)));
641 if ((retval = krb5_set_default_tgs_ktypes(context, enc_types))) {
642 DEBUG(1,("cli_krb5_get_ticket: krb5_set_default_tgs_ktypes failed (%s)\n",
643 error_message(retval)));
647 if ((retval = ads_krb5_mk_req(context,
649 AP_OPTS_USE_SUBKEY | (krb5_flags)extra_ap_opts,
655 get_krb5_smb_session_key(context, auth_context, session_key_krb5, False);
657 *ticket = data_blob(packet.data, packet.length);
659 kerberos_free_data_contents(context, &packet);
665 krb5_cc_close(context, ccdef);
667 krb5_auth_con_free(context, auth_context);
668 krb5_free_context(context);
674 BOOL get_krb5_smb_session_key(krb5_context context, krb5_auth_context auth_context, DATA_BLOB *session_key, BOOL remote)
681 err = krb5_auth_con_getremotesubkey(context, auth_context, &skey);
683 err = krb5_auth_con_getlocalsubkey(context, auth_context, &skey);
684 if (err == 0 && skey != NULL) {
685 DEBUG(10, ("Got KRB5 session key of length %d\n", (int)KRB5_KEY_LENGTH(skey)));
686 *session_key = data_blob(KRB5_KEY_DATA(skey), KRB5_KEY_LENGTH(skey));
687 dump_data_pw("KRB5 Session Key:\n", session_key->data, session_key->length);
691 krb5_free_keyblock(context, skey);
693 DEBUG(10, ("KRB5 error getting session key %d\n", err));
700 #if defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING) && !defined(HAVE_KRB5_PRINC_COMPONENT)
701 const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i );
703 const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i )
705 static krb5_data kdata;
707 kdata.data = (char *)krb5_principal_get_comp_string(context, principal, i);
708 kdata.length = strlen(kdata.data);
713 krb5_error_code smb_krb5_kt_free_entry(krb5_context context, krb5_keytab_entry *kt_entry)
715 #if defined(HAVE_KRB5_KT_FREE_ENTRY)
716 return krb5_kt_free_entry(context, kt_entry);
717 #elif defined(HAVE_KRB5_FREE_KEYTAB_ENTRY_CONTENTS)
718 return krb5_free_keytab_entry_contents(context, kt_entry);
720 #error UNKNOWN_KT_FREE_FUNCTION
724 void smb_krb5_checksum_from_pac_sig(krb5_checksum *cksum,
725 PAC_SIGNATURE_DATA *sig)
727 #ifdef HAVE_CHECKSUM_IN_KRB5_CHECKSUM
728 cksum->cksumtype = (krb5_cksumtype)sig->type;
729 cksum->checksum.length = sig->signature.buf_len;
730 cksum->checksum.data = sig->signature.buffer;
732 cksum->checksum_type = (krb5_cksumtype)sig->type;
733 cksum->length = sig->signature.buf_len;
734 cksum->contents = sig->signature.buffer;
738 krb5_error_code smb_krb5_verify_checksum(krb5_context context,
739 krb5_keyblock *keyblock,
741 krb5_checksum *cksum,
747 /* verify the checksum */
749 /* welcome to the wonderful world of samba's kerberos abstraction layer:
751 * function heimdal 0.6.1rc3 heimdal 0.7 MIT krb 1.4.2
752 * -----------------------------------------------------------------------------
753 * krb5_c_verify_checksum - works works
754 * krb5_verify_checksum works (6 args) works (6 args) broken (7 args)
757 #if defined(HAVE_KRB5_C_VERIFY_CHECKSUM)
759 krb5_boolean checksum_valid = False;
762 input.data = (char *)data;
763 input.length = length;
765 ret = krb5_c_verify_checksum(context,
772 DEBUG(3,("smb_krb5_verify_checksum: krb5_c_verify_checksum() failed: %s\n",
773 error_message(ret)));
778 ret = KRB5KRB_AP_ERR_BAD_INTEGRITY;
781 #elif KRB5_VERIFY_CHECKSUM_ARGS == 6 && defined(HAVE_KRB5_CRYPTO_INIT) && defined(HAVE_KRB5_CRYPTO) && defined(HAVE_KRB5_CRYPTO_DESTROY)
783 /* Warning: MIT's krb5_verify_checksum cannot be used as it will use a key
784 * without enctype and it ignores any key_usage types - Guenther */
789 ret = krb5_crypto_init(context,
794 DEBUG(0,("smb_krb5_verify_checksum: krb5_crypto_init() failed: %s\n",
795 error_message(ret)));
799 ret = krb5_verify_checksum(context,
806 krb5_crypto_destroy(context, crypto);
810 #error UNKNOWN_KRB5_VERIFY_CHECKSUM_FUNCTION
816 time_t get_authtime_from_tkt(krb5_ticket *tkt)
818 #if defined(HAVE_KRB5_TKT_ENC_PART2)
819 return tkt->enc_part2->times.authtime;
821 return tkt->ticket.authtime;
825 static int get_kvno_from_ap_req(krb5_ap_req *ap_req)
827 #ifdef HAVE_TICKET_POINTER_IN_KRB5_AP_REQ /* MIT */
828 if (ap_req->ticket->enc_part.kvno)
829 return ap_req->ticket->enc_part.kvno;
831 if (ap_req->ticket.enc_part.kvno)
832 return *ap_req->ticket.enc_part.kvno;
837 static krb5_enctype get_enctype_from_ap_req(krb5_ap_req *ap_req)
839 #ifdef HAVE_ETYPE_IN_ENCRYPTEDDATA /* Heimdal */
840 return ap_req->ticket.enc_part.etype;
842 return ap_req->ticket->enc_part.enctype;
846 static krb5_error_code
847 get_key_from_keytab(krb5_context context,
848 krb5_const_principal server,
849 krb5_enctype enctype,
851 krb5_keyblock **out_key)
853 krb5_keytab_entry entry;
858 /* We have to open a new keytab handle here, as MIT does
859 an implicit open/getnext/close on krb5_kt_get_entry. We
860 may be in the middle of a keytab enumeration when this is
863 ret = krb5_kt_default(context, &keytab);
865 DEBUG(0,("get_key_from_keytab: failed to open keytab: %s\n", error_message(ret)));
869 if ( DEBUGLEVEL >= 10 ) {
870 if (smb_krb5_unparse_name(context, server, &name) == 0) {
871 DEBUG(10,("get_key_from_keytab: will look for kvno %d, enctype %d and name: %s\n",
872 kvno, enctype, name));
877 ret = krb5_kt_get_entry(context,
885 DEBUG(0,("get_key_from_keytab: failed to retrieve key: %s\n", error_message(ret)));
889 #ifdef HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK /* Heimdal */
890 ret = krb5_copy_keyblock(context, &entry.keyblock, out_key);
891 #elif defined(HAVE_KRB5_KEYTAB_ENTRY_KEY) /* MIT */
892 ret = krb5_copy_keyblock(context, &entry.key, out_key);
894 #error UNKNOWN_KRB5_KEYTAB_ENTRY_FORMAT
898 DEBUG(0,("get_key_from_keytab: failed to copy key: %s\n", error_message(ret)));
902 smb_krb5_kt_free_entry(context, &entry);
905 krb5_kt_close(context, keytab);
909 void smb_krb5_free_ap_req(krb5_context context,
912 #ifdef HAVE_KRB5_FREE_AP_REQ /* MIT */
913 krb5_free_ap_req(context, ap_req);
914 #elif defined(HAVE_FREE_AP_REQ) /* Heimdal */
917 #error UNKNOWN_KRB5_AP_REQ_FREE_FUNCTION
922 #if defined(HAVE_DECODE_KRB5_AP_REQ) /* MIT */
923 krb5_error_code decode_krb5_ap_req(const krb5_data *code, krb5_ap_req **rep);
926 krb5_error_code smb_krb5_get_keyinfo_from_ap_req(krb5_context context,
927 const krb5_data *inbuf,
929 krb5_enctype *enctype)
932 #ifdef HAVE_KRB5_DECODE_AP_REQ /* Heimdal */
936 ret = krb5_decode_ap_req(context, inbuf, &ap_req);
940 *kvno = get_kvno_from_ap_req(&ap_req);
941 *enctype = get_enctype_from_ap_req(&ap_req);
943 smb_krb5_free_ap_req(context, &ap_req);
945 #elif defined(HAVE_DECODE_KRB5_AP_REQ) /* MIT */
947 krb5_ap_req *ap_req = NULL;
949 ret = decode_krb5_ap_req(inbuf, &ap_req);
953 *kvno = get_kvno_from_ap_req(ap_req);
954 *enctype = get_enctype_from_ap_req(ap_req);
956 smb_krb5_free_ap_req(context, ap_req);
959 #error UNKOWN_KRB5_AP_REQ_DECODING_FUNCTION
964 krb5_error_code krb5_rd_req_return_keyblock_from_keytab(krb5_context context,
965 krb5_auth_context *auth_context,
966 const krb5_data *inbuf,
967 krb5_const_principal server,
969 krb5_flags *ap_req_options,
970 krb5_ticket **ticket,
971 krb5_keyblock **keyblock)
975 krb5_enctype enctype;
976 krb5_keyblock *local_keyblock;
978 ret = krb5_rd_req(context,
989 ret = smb_krb5_get_keyinfo_from_ap_req(context, inbuf, &kvno, &enctype);
994 ret = get_key_from_keytab(context,
1000 DEBUG(0,("krb5_rd_req_return_keyblock_from_keytab: failed to call get_key_from_keytab\n"));
1005 if (ret && local_keyblock != NULL) {
1006 krb5_free_keyblock(context, local_keyblock);
1008 *keyblock = local_keyblock;
1014 krb5_error_code smb_krb5_parse_name_norealm(krb5_context context,
1016 krb5_principal *principal)
1018 #ifdef HAVE_KRB5_PARSE_NAME_NOREALM
1019 return smb_krb5_parse_name_norealm_conv(context, name, principal);
1022 /* we are cheating here because parse_name will in fact set the realm.
1023 * We don't care as the only caller of smb_krb5_parse_name_norealm
1024 * ignores the realm anyway when calling
1025 * smb_krb5_principal_compare_any_realm later - Guenther */
1027 return smb_krb5_parse_name(context, name, principal);
1030 BOOL smb_krb5_principal_compare_any_realm(krb5_context context,
1031 krb5_const_principal princ1,
1032 krb5_const_principal princ2)
1034 #ifdef HAVE_KRB5_PRINCIPAL_COMPARE_ANY_REALM
1036 return krb5_principal_compare_any_realm(context, princ1, princ2);
1038 /* krb5_princ_size is a macro in MIT */
1039 #elif defined(HAVE_KRB5_PRINC_SIZE) || defined(krb5_princ_size)
1042 const krb5_data *p1, *p2;
1044 len1 = krb5_princ_size(context, princ1);
1045 len2 = krb5_princ_size(context, princ2);
1050 for (i = 0; i < len1; i++) {
1052 p1 = krb5_princ_component(context, CONST_DISCARD(krb5_principal, princ1), i);
1053 p2 = krb5_princ_component(context, CONST_DISCARD(krb5_principal, princ2), i);
1055 if (p1->length != p2->length || memcmp(p1->data, p2->data, p1->length))
1061 #error NO_SUITABLE_PRINCIPAL_COMPARE_FUNCTION
1065 krb5_error_code smb_krb5_renew_ticket(const char *ccache_string, /* FILE:/tmp/krb5cc_0 */
1066 const char *client_string, /* gd@BER.SUSE.DE */
1067 const char *service_string, /* krbtgt/BER.SUSE.DE@BER.SUSE.DE */
1068 time_t *new_start_time)
1070 krb5_error_code ret;
1071 krb5_context context = NULL;
1072 krb5_ccache ccache = NULL;
1073 krb5_principal client = NULL;
1075 initialize_krb5_error_table();
1076 ret = krb5_init_context(&context);
1081 if (!ccache_string) {
1082 ccache_string = krb5_cc_default_name(context);
1085 DEBUG(10,("smb_krb5_renew_ticket: using %s as ccache\n", ccache_string));
1087 /* FIXME: we should not fall back to defaults */
1088 ret = krb5_cc_resolve(context, CONST_DISCARD(char *, ccache_string), &ccache);
1093 #ifdef HAVE_KRB5_GET_RENEWED_CREDS /* MIT */
1097 if (client_string) {
1098 ret = smb_krb5_parse_name(context, client_string, &client);
1103 ret = krb5_cc_get_principal(context, ccache, &client);
1109 ret = krb5_get_renewed_creds(context, &creds, client, ccache, CONST_DISCARD(char *, service_string));
1111 DEBUG(10,("smb_krb5_renew_ticket: krb5_get_kdc_cred failed: %s\n", error_message(ret)));
1115 /* hm, doesn't that create a new one if the old one wasn't there? - Guenther */
1116 ret = krb5_cc_initialize(context, ccache, client);
1121 ret = krb5_cc_store_cred(context, ccache, &creds);
1123 if (new_start_time) {
1124 *new_start_time = (time_t) creds.times.renew_till;
1127 krb5_free_cred_contents(context, &creds);
1129 #elif defined(HAVE_KRB5_GET_KDC_CRED) /* Heimdal */
1131 krb5_kdc_flags flags;
1132 krb5_creds creds_in;
1133 krb5_realm *client_realm;
1136 memset(&creds_in, 0, sizeof(creds_in));
1138 if (client_string) {
1139 ret = smb_krb5_parse_name(context, client_string, &creds_in.client);
1144 ret = krb5_cc_get_principal(context, ccache, &creds_in.client);
1150 if (service_string) {
1151 ret = smb_krb5_parse_name(context, service_string, &creds_in.server);
1156 /* build tgt service by default */
1157 client_realm = krb5_princ_realm(context, client);
1158 ret = krb5_make_principal(context, &creds_in.server, *client_realm, KRB5_TGS_NAME, *client_realm, NULL);
1165 flags.b.renewable = flags.b.renew = True;
1167 ret = krb5_get_kdc_cred(context, ccache, flags, NULL, NULL, &creds_in, &creds);
1169 DEBUG(10,("smb_krb5_renew_ticket: krb5_get_kdc_cred failed: %s\n", error_message(ret)));
1173 /* hm, doesn't that create a new one if the old one wasn't there? - Guenther */
1174 ret = krb5_cc_initialize(context, ccache, creds_in.client);
1179 ret = krb5_cc_store_cred(context, ccache, creds);
1181 if (new_start_time) {
1182 *new_start_time = (time_t) creds->times.renew_till;
1185 krb5_free_cred_contents(context, &creds_in);
1186 krb5_free_creds(context, creds);
1189 #error No suitable krb5 ticket renew function available
1195 krb5_free_principal(context, client);
1198 krb5_free_context(context);
1201 krb5_cc_close(context, ccache);
1208 krb5_error_code smb_krb5_free_addresses(krb5_context context, smb_krb5_addresses *addr)
1210 krb5_error_code ret = 0;
1214 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1215 krb5_free_addresses(context, addr->addrs);
1216 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1217 ret = krb5_free_addresses(context, addr->addrs);
1218 SAFE_FREE(addr->addrs);
1225 krb5_error_code smb_krb5_gen_netbios_krb5_address(smb_krb5_addresses **kerb_addr)
1227 krb5_error_code ret = 0;
1229 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1230 krb5_address **addrs = NULL;
1231 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1232 krb5_addresses *addrs = NULL;
1235 *kerb_addr = (smb_krb5_addresses *)SMB_MALLOC(sizeof(smb_krb5_addresses));
1236 if (*kerb_addr == NULL) {
1240 put_name(buf, global_myname(), ' ', 0x20);
1242 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
1246 addrs = (krb5_address **)SMB_MALLOC(sizeof(krb5_address *) * num_addr);
1247 if (addrs == NULL) {
1248 SAFE_FREE(kerb_addr);
1252 memset(addrs, 0, sizeof(krb5_address *) * num_addr);
1254 addrs[0] = (krb5_address *)SMB_MALLOC(sizeof(krb5_address));
1255 if (addrs[0] == NULL) {
1257 SAFE_FREE(kerb_addr);
1261 addrs[0]->magic = KV5M_ADDRESS;
1262 addrs[0]->addrtype = KRB5_ADDR_NETBIOS;
1263 addrs[0]->length = MAX_NETBIOSNAME_LEN;
1264 addrs[0]->contents = (unsigned char *)SMB_MALLOC(addrs[0]->length);
1265 if (addrs[0]->contents == NULL) {
1266 SAFE_FREE(addrs[0]);
1268 SAFE_FREE(kerb_addr);
1272 memcpy(addrs[0]->contents, buf, addrs[0]->length);
1276 #elif defined(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS) /* Heimdal */
1278 addrs = (krb5_addresses *)SMB_MALLOC(sizeof(krb5_addresses));
1279 if (addrs == NULL) {
1280 SAFE_FREE(kerb_addr);
1284 memset(addrs, 0, sizeof(krb5_addresses));
1287 addrs->val = (krb5_address *)SMB_MALLOC(sizeof(krb5_address));
1288 if (addrs->val == NULL) {
1290 SAFE_FREE(kerb_addr);
1294 addrs->val[0].addr_type = KRB5_ADDR_NETBIOS;
1295 addrs->val[0].address.length = MAX_NETBIOSNAME_LEN;
1296 addrs->val[0].address.data = (unsigned char *)SMB_MALLOC(addrs->val[0].address.length);
1297 if (addrs->val[0].address.data == NULL) {
1298 SAFE_FREE(addrs->val);
1300 SAFE_FREE(kerb_addr);
1304 memcpy(addrs->val[0].address.data, buf, addrs->val[0].address.length);
1307 #error UNKNOWN_KRB5_ADDRESS_FORMAT
1309 (*kerb_addr)->addrs = addrs;
1314 void smb_krb5_free_error(krb5_context context, krb5_error *krberror)
1316 #ifdef HAVE_KRB5_FREE_ERROR_CONTENTS /* Heimdal */
1317 krb5_free_error_contents(context, krberror);
1319 krb5_free_error(context, krberror);
1323 krb5_error_code handle_krberror_packet(krb5_context context,
1326 krb5_error_code ret;
1327 BOOL got_error_code = False;
1329 DEBUG(10,("handle_krberror_packet: got error packet\n"));
1331 #ifdef HAVE_E_DATA_POINTER_IN_KRB5_ERROR /* Heimdal */
1333 krb5_error krberror;
1335 if ((ret = krb5_rd_error(context, packet, &krberror))) {
1336 DEBUG(10,("handle_krberror_packet: krb5_rd_error failed with: %s\n",
1337 error_message(ret)));
1341 if (krberror.e_data == NULL || krberror.e_data->data == NULL) {
1342 ret = (krb5_error_code) krberror.error_code;
1343 got_error_code = True;
1346 smb_krb5_free_error(context, &krberror);
1350 krb5_error *krberror;
1352 if ((ret = krb5_rd_error(context, packet, &krberror))) {
1353 DEBUG(10,("handle_krberror_packet: krb5_rd_error failed with: %s\n",
1354 error_message(ret)));
1358 if (krberror->e_data.data == NULL) {
1359 ret = ERROR_TABLE_BASE_krb5 + (krb5_error_code) krberror->error;
1360 got_error_code = True;
1362 smb_krb5_free_error(context, krberror);
1365 if (got_error_code) {
1366 DEBUG(5,("handle_krberror_packet: got KERBERR from kpasswd: %s (%d)\n",
1367 error_message(ret), ret));
1372 #else /* HAVE_KRB5 */
1373 /* this saves a few linking headaches */
1374 int cli_krb5_get_ticket(const char *principal, time_t time_offset,
1375 DATA_BLOB *ticket, DATA_BLOB *session_key_krb5, uint32 extra_ap_opts,
1378 DEBUG(0,("NO KERBEROS SUPPORT\n"));