2 * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 #include "krb5_locl.h"
39 #define INIT_FIELD(C, T, E, D, F) \
40 (C)->E = krb5_config_get_ ## T ## _default ((C), NULL, (D), \
41 "libdefaults", F, NULL)
43 #define INIT_FLAG(C, O, V, D, F) \
45 if (krb5_config_get_bool_default((C), NULL, (D),"libdefaults", F, NULL)) { \
51 * Set the list of etypes `ret_etypes' from the configuration variable
55 static krb5_error_code
56 set_etypes (krb5_context context,
58 krb5_enctype **ret_enctypes)
61 krb5_enctype *etypes = NULL;
63 etypes_str = krb5_config_get_strings(context, NULL, "libdefaults",
67 for(i = 0; etypes_str[i]; i++);
68 etypes = malloc((i+1) * sizeof(*etypes));
70 krb5_config_free_strings (etypes_str);
71 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
74 for(j = 0, k = 0; j < i; j++) {
76 if(krb5_string_to_enctype(context, etypes_str[j], &e) != 0)
78 if (krb5_enctype_valid(context, e) != 0)
82 etypes[k] = ETYPE_NULL;
83 krb5_config_free_strings(etypes_str);
85 *ret_enctypes = etypes;
90 * read variables from the configuration file and set in `context'
93 static krb5_error_code
94 init_context_from_config_file(krb5_context context)
99 krb5_enctype *tmptypes;
101 INIT_FIELD(context, time, max_skew, 5 * 60, "clockskew");
102 INIT_FIELD(context, time, kdc_timeout, 3, "kdc_timeout");
103 INIT_FIELD(context, int, max_retries, 3, "max_retries");
105 INIT_FIELD(context, string, http_proxy, NULL, "http_proxy");
107 ret = set_etypes (context, "default_etypes", &tmptypes);
110 free(context->etypes);
111 context->etypes = tmptypes;
113 ret = set_etypes (context, "default_etypes_des", &tmptypes);
116 free(context->etypes_des);
117 context->etypes_des = tmptypes;
119 /* default keytab name */
122 tmp = getenv("KRB5_KTNAME");
124 context->default_keytab = tmp;
126 INIT_FIELD(context, string, default_keytab,
127 KEYTAB_DEFAULT, "default_keytab_name");
129 INIT_FIELD(context, string, default_keytab_modify,
130 NULL, "default_keytab_modify_name");
132 INIT_FIELD(context, string, time_fmt,
133 "%Y-%m-%dT%H:%M:%S", "time_format");
135 INIT_FIELD(context, string, date_fmt,
136 "%Y-%m-%d", "date_format");
138 INIT_FIELD(context, bool, log_utc,
143 /* init dns-proxy slime */
144 tmp = krb5_config_get_string(context, NULL, "libdefaults",
147 roken_gethostby_setup(context->http_proxy, tmp);
148 krb5_free_host_realm (context, context->default_realms);
149 context->default_realms = NULL;
152 krb5_addresses addresses;
155 krb5_set_extra_addresses(context, NULL);
156 adr = krb5_config_get_strings(context, NULL,
160 memset(&addresses, 0, sizeof(addresses));
161 for(a = adr; a && *a; a++) {
162 ret = krb5_parse_address(context, *a, &addresses);
164 krb5_add_extra_addresses(context, &addresses);
165 krb5_free_addresses(context, &addresses);
168 krb5_config_free_strings(adr);
170 krb5_set_ignore_addresses(context, NULL);
171 adr = krb5_config_get_strings(context, NULL,
175 memset(&addresses, 0, sizeof(addresses));
176 for(a = adr; a && *a; a++) {
177 ret = krb5_parse_address(context, *a, &addresses);
179 krb5_add_ignore_addresses(context, &addresses);
180 krb5_free_addresses(context, &addresses);
183 krb5_config_free_strings(adr);
186 INIT_FIELD(context, bool, scan_interfaces, TRUE, "scan_interfaces");
187 INIT_FIELD(context, int, fcache_vno, 0, "fcache_version");
188 /* prefer dns_lookup_kdc over srv_lookup. */
189 INIT_FIELD(context, bool, srv_lookup, TRUE, "srv_lookup");
190 INIT_FIELD(context, bool, srv_lookup, context->srv_lookup, "dns_lookup_kdc");
191 INIT_FIELD(context, int, large_msg_size, 1400, "large_message_size");
192 INIT_FLAG(context, flags, KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME, TRUE, "dns_canonicalize_hostname");
193 INIT_FLAG(context, flags, KRB5_CTX_F_CHECK_PAC, TRUE, "check_pac");
194 context->default_cc_name = NULL;
195 context->default_cc_name_set = 0;
197 ret = krb5_config_get_bool_default(context, NULL, FALSE,
199 "allow_weak_crypto", NULL);
201 krb5_enctype_enable(context, ETYPE_DES_CBC_CRC);
202 krb5_enctype_enable(context, ETYPE_DES_CBC_MD4);
203 krb5_enctype_enable(context, ETYPE_DES_CBC_MD5);
204 krb5_enctype_enable(context, ETYPE_DES_CBC_NONE);
205 krb5_enctype_enable(context, ETYPE_DES_CFB64_NONE);
206 krb5_enctype_enable(context, ETYPE_DES_PCBC_NONE);
209 s = krb5_config_get_strings(context, NULL, "logging", "krb5", NULL);
212 krb5_initlog(context, "libkrb5", &context->debug_dest);
214 krb5_addlog_dest(context, context->debug_dest, *p);
215 krb5_config_free_strings(s);
222 static krb5_error_code
223 cc_ops_register(krb5_context context)
225 context->cc_ops = NULL;
226 context->num_cc_ops = 0;
228 #ifndef KCM_IS_API_CACHE
229 krb5_cc_register(context, &krb5_acc_ops, TRUE);
231 krb5_cc_register(context, &krb5_fcc_ops, TRUE);
232 krb5_cc_register(context, &krb5_mcc_ops, TRUE);
234 krb5_cc_register(context, &krb5_scc_ops, TRUE);
237 #ifdef KCM_IS_API_CACHE
238 krb5_cc_register(context, &krb5_akcm_ops, TRUE);
240 krb5_cc_register(context, &krb5_kcm_ops, TRUE);
245 static krb5_error_code
246 cc_ops_copy(krb5_context context, const krb5_context src_context)
248 const krb5_cc_ops **cc_ops;
250 context->cc_ops = NULL;
251 context->num_cc_ops = 0;
253 if (src_context->num_cc_ops == 0)
256 cc_ops = malloc(sizeof(cc_ops[0]) * src_context->num_cc_ops);
257 if (cc_ops == NULL) {
258 krb5_set_error_message(context, KRB5_CC_NOMEM,
259 N_("malloc: out of memory", ""));
260 return KRB5_CC_NOMEM;
263 memcpy(cc_ops, src_context->cc_ops,
264 sizeof(cc_ops[0]) * src_context->num_cc_ops);
265 context->cc_ops = cc_ops;
266 context->num_cc_ops = src_context->num_cc_ops;
271 static krb5_error_code
272 kt_ops_register(krb5_context context)
274 context->num_kt_types = 0;
275 context->kt_types = NULL;
277 krb5_kt_register (context, &krb5_fkt_ops);
278 krb5_kt_register (context, &krb5_wrfkt_ops);
279 krb5_kt_register (context, &krb5_javakt_ops);
280 krb5_kt_register (context, &krb5_mkt_ops);
281 #ifndef HEIMDAL_SMALLER
282 krb5_kt_register (context, &krb5_akf_ops);
284 krb5_kt_register (context, &krb5_any_ops);
288 static krb5_error_code
289 kt_ops_copy(krb5_context context, const krb5_context src_context)
291 context->num_kt_types = 0;
292 context->kt_types = NULL;
294 if (src_context->num_kt_types == 0)
297 context->kt_types = malloc(sizeof(context->kt_types[0]) * src_context->num_kt_types);
298 if (context->kt_types == NULL) {
299 krb5_set_error_message(context, ENOMEM,
300 N_("malloc: out of memory", ""));
304 context->num_kt_types = src_context->num_kt_types;
305 memcpy(context->kt_types, src_context->kt_types,
306 sizeof(context->kt_types[0]) * src_context->num_kt_types);
312 * Initializes the context structure and reads the configuration file
313 * /etc/krb5.conf. The structure should be freed by calling
314 * krb5_free_context() when it is no longer being used.
316 * @param context pointer to returned context
318 * @return Returns 0 to indicate success. Otherwise an errno code is
319 * returned. Failure means either that something bad happened during
320 * initialization (typically ENOMEM) or that Kerberos should not be
326 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
327 krb5_init_context(krb5_context *context)
335 /* should have a run_once */
336 bindtextdomain(HEIMDAL_TEXTDOMAIN, HEIMDAL_LOCALEDIR);
338 p = calloc(1, sizeof(*p));
342 p->mutex = malloc(sizeof(HEIMDAL_MUTEX));
343 if (p->mutex == NULL) {
347 HEIMDAL_MUTEX_init(p->mutex);
349 p->flags |= KRB5_CTX_F_HOMEDIR_ACCESS;
351 ret = krb5_get_default_config_files(&files);
354 ret = krb5_set_config_files(p, files);
355 krb5_free_config_files(files);
359 /* init error tables */
365 ret = hx509_context_init(&p->hx509ctx);
370 p->flags |= KRB5_CTX_F_SOCKETS_INITIALIZED;
374 krb5_free_context(p);
381 #ifndef HEIMDAL_SMALLER
387 static krb5_error_code
388 copy_etypes (krb5_context context,
389 krb5_enctype *enctypes,
390 krb5_enctype **ret_enctypes)
394 for (i = 0; enctypes[i]; i++)
398 *ret_enctypes = malloc(sizeof(ret_enctypes[0]) * i);
399 if (*ret_enctypes == NULL) {
400 krb5_set_error_message(context, ENOMEM,
401 N_("malloc: out of memory", ""));
404 memcpy(*ret_enctypes, enctypes, sizeof(ret_enctypes[0]) * i);
409 * Make a copy for the Kerberos 5 context, the new krb5_context shoud
410 * be freed with krb5_free_context().
412 * @param context the Kerberos context to copy
413 * @param out the copy of the Kerberos, set to NULL error.
415 * @return Returns 0 to indicate success. Otherwise an kerberos et
416 * error code is returned, see krb5_get_error_message().
421 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
422 krb5_copy_context(krb5_context context, krb5_context *out)
429 p = calloc(1, sizeof(*p));
431 krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
435 p->mutex = malloc(sizeof(HEIMDAL_MUTEX));
436 if (p->mutex == NULL) {
437 krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
441 HEIMDAL_MUTEX_init(p->mutex);
444 if (context->default_cc_name)
445 p->default_cc_name = strdup(context->default_cc_name);
446 if (context->default_cc_name_env)
447 p->default_cc_name_env = strdup(context->default_cc_name_env);
449 if (context->etypes) {
450 ret = copy_etypes(context, context->etypes, &p->etypes);
454 if (context->etypes_des) {
455 ret = copy_etypes(context, context->etypes_des, &p->etypes_des);
460 if (context->default_realms) {
461 ret = krb5_copy_host_realm(context,
462 context->default_realms, &p->default_realms);
467 ret = _krb5_config_copy(context, context->cf, &p->cf);
471 /* XXX should copy */
474 cc_ops_copy(p, context);
475 kt_ops_copy(p, context);
478 if(context->warn_dest != NULL)
480 if(context->debug_dest != NULL)
484 ret = krb5_set_extra_addresses(p, context->extra_addresses);
487 ret = krb5_set_extra_addresses(p, context->ignore_addresses);
491 ret = _krb5_copy_send_to_kdc_func(p, context);
500 krb5_free_context(p);
507 * Frees the krb5_context allocated by krb5_init_context().
509 * @param context context to be freed.
514 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
515 krb5_free_context(krb5_context context)
517 if (context->default_cc_name)
518 free(context->default_cc_name);
519 if (context->default_cc_name_env)
520 free(context->default_cc_name_env);
521 free(context->etypes);
522 free(context->etypes_des);
523 krb5_free_host_realm (context, context->default_realms);
524 krb5_config_file_free (context, context->cf);
525 free_error_table (context->et_list);
526 free(context->cc_ops);
527 free(context->kt_types);
528 krb5_clear_error_message(context);
529 if(context->warn_dest != NULL)
530 krb5_closelog(context, context->warn_dest);
531 if(context->debug_dest != NULL)
532 krb5_closelog(context, context->debug_dest);
533 krb5_set_extra_addresses(context, NULL);
534 krb5_set_ignore_addresses(context, NULL);
535 krb5_set_send_to_kdc_func(context, NULL, NULL);
538 if (context->hx509ctx)
539 hx509_context_free(&context->hx509ctx);
542 HEIMDAL_MUTEX_destroy(context->mutex);
543 free(context->mutex);
544 if (context->flags & KRB5_CTX_F_SOCKETS_INITIALIZED) {
548 memset(context, 0, sizeof(*context));
553 * Reinit the context from a new set of filenames.
555 * @param context context to add configuration too.
556 * @param filenames array of filenames, end of list is indicated with a NULL filename.
558 * @return Returns 0 to indicate success. Otherwise an kerberos et
559 * error code is returned, see krb5_get_error_message().
564 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
565 krb5_set_config_files(krb5_context context, char **filenames)
568 krb5_config_binding *tmp = NULL;
569 while(filenames != NULL && *filenames != NULL && **filenames != '\0') {
570 ret = krb5_config_parse_file_multi(context, *filenames, &tmp);
571 if(ret != 0 && ret != ENOENT && ret != EACCES && ret != EPERM) {
572 krb5_config_file_free(context, tmp);
578 /* with this enabled and if there are no config files, Kerberos is
579 considererd disabled */
583 krb5_config_file_free(context, context->cf);
585 ret = init_context_from_config_file(context);
589 static krb5_error_code
590 add_file(char ***pfilenames, int *len, char *file)
592 char **pp = *pfilenames;
595 for(i = 0; i < *len; i++) {
596 if(strcmp(pp[i], file) == 0) {
602 pp = realloc(*pfilenames, (*len + 2) * sizeof(*pp));
616 * `pq' isn't free, it's up the the caller
619 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
620 krb5_prepend_config_files(const char *filelist, char **pq, char ***ret_pp)
635 l = strsep_copy(&q, ":", NULL, 0);
640 krb5_free_config_files(pp);
643 (void)strsep_copy(&p, ":", fn, l + 1);
644 ret = add_file(&pp, &len, fn);
646 krb5_free_config_files(pp);
654 for (i = 0; pq[i] != NULL; i++) {
657 krb5_free_config_files(pp);
660 ret = add_file(&pp, &len, fn);
662 krb5_free_config_files(pp);
673 * Prepend the filename to the global configuration list.
675 * @param filelist a filename to add to the default list of filename
676 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
678 * @return Returns 0 to indicate success. Otherwise an kerberos et
679 * error code is returned, see krb5_get_error_message().
684 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
685 krb5_prepend_config_files_default(const char *filelist, char ***pfilenames)
688 char **defpp, **pp = NULL;
690 ret = krb5_get_default_config_files(&defpp);
694 ret = krb5_prepend_config_files(filelist, defpp, &pp);
695 krb5_free_config_files(defpp);
704 * Get the global configuration list.
706 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
708 * @return Returns 0 to indicate success. Otherwise an kerberos et
709 * error code is returned, see krb5_get_error_message().
714 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
715 krb5_get_default_config_files(char ***pfilenames)
717 const char *files = NULL;
719 if (pfilenames == NULL)
722 files = getenv("KRB5_CONFIG");
724 files = krb5_config_file;
726 return krb5_prepend_config_files(files, NULL, pfilenames);
730 * Free a list of configuration files.
732 * @param filenames list, terminated with a NULL pointer, to be
733 * freed. NULL is an valid argument.
735 * @return Returns 0 to indicate success. Otherwise an kerberos et
736 * error code is returned, see krb5_get_error_message().
741 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
742 krb5_free_config_files(char **filenames)
745 for(p = filenames; p && *p != NULL; p++)
751 * Returns the list of Kerberos encryption types sorted in order of
752 * most preferred to least preferred encryption type. Note that some
753 * encryption types might be disabled, so you need to check with
754 * krb5_enctype_valid() before using the encryption type.
756 * @return list of enctypes, terminated with ETYPE_NULL. Its a static
757 * array completed into the Kerberos library so the content doesn't
763 KRB5_LIB_FUNCTION const krb5_enctype * KRB5_LIB_CALL
764 krb5_kerberos_enctypes(krb5_context context)
766 static const krb5_enctype p[] = {
767 ETYPE_AES256_CTS_HMAC_SHA1_96,
768 ETYPE_AES128_CTS_HMAC_SHA1_96,
771 ETYPE_ARCFOUR_HMAC_MD5,
781 * set `etype' to a malloced list of the default enctypes
784 static krb5_error_code
785 default_etypes(krb5_context context, krb5_enctype **etype)
787 const krb5_enctype *p;
788 krb5_enctype *e = NULL, *ep;
791 p = krb5_kerberos_enctypes(context);
793 for (i = 0; p[i] != ETYPE_NULL; i++) {
794 if (krb5_enctype_valid(context, p[i]) != 0)
796 ep = realloc(e, (n + 2) * sizeof(*e));
799 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
804 e[n + 1] = ETYPE_NULL;
812 * Set the default encryption types that will be use in communcation
813 * with the KDC, clients and servers.
815 * @param context Kerberos 5 context.
816 * @param etypes Encryption types, array terminated with ETYPE_NULL (0).
818 * @return Returns 0 to indicate success. Otherwise an kerberos et
819 * error code is returned, see krb5_get_error_message().
824 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
825 krb5_set_default_in_tkt_etypes(krb5_context context,
826 const krb5_enctype *etypes)
829 krb5_enctype *p = NULL;
833 for (n = 0; etypes[n]; n++)
838 krb5_set_error_message (context, ENOMEM,
839 N_("malloc: out of memory", ""));
842 for (n = 0, m = 0; etypes[n]; n++) {
843 ret = krb5_enctype_valid(context, etypes[n]);
851 krb5_set_error_message (context, KRB5_PROG_ETYPE_NOSUPP,
852 N_("no valid enctype set", ""));
853 return KRB5_PROG_ETYPE_NOSUPP;
857 free(context->etypes);
863 * Get the default encryption types that will be use in communcation
864 * with the KDC, clients and servers.
866 * @param context Kerberos 5 context.
867 * @param etypes Encryption types, array terminated with
868 * ETYPE_NULL(0), caller should free array with krb5_xfree():
870 * @return Returns 0 to indicate success. Otherwise an kerberos et
871 * error code is returned, see krb5_get_error_message().
876 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
877 krb5_get_default_in_tkt_etypes(krb5_context context,
878 krb5_enctype **etypes)
884 if(context->etypes) {
885 for(i = 0; context->etypes[i]; i++);
889 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
892 memmove(p, context->etypes, i * sizeof(krb5_enctype));
894 ret = default_etypes(context, &p);
903 * Init the built-in ets in the Kerberos library.
905 * @param context kerberos context to add the ets too
910 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
911 krb5_init_ets(krb5_context context)
913 if(context->et_list == NULL){
914 krb5_add_et_list(context, initialize_krb5_error_table_r);
915 krb5_add_et_list(context, initialize_asn1_error_table_r);
916 krb5_add_et_list(context, initialize_heim_error_table_r);
918 krb5_add_et_list(context, initialize_k524_error_table_r);
920 #ifdef COM_ERR_BINDDOMAIN_krb5
921 bindtextdomain(COM_ERR_BINDDOMAIN_krb5, HEIMDAL_LOCALEDIR);
922 bindtextdomain(COM_ERR_BINDDOMAIN_asn1, HEIMDAL_LOCALEDIR);
923 bindtextdomain(COM_ERR_BINDDOMAIN_heim, HEIMDAL_LOCALEDIR);
924 bindtextdomain(COM_ERR_BINDDOMAIN_k524, HEIMDAL_LOCALEDIR);
928 krb5_add_et_list(context, initialize_hx_error_table_r);
929 #ifdef COM_ERR_BINDDOMAIN_hx
930 bindtextdomain(COM_ERR_BINDDOMAIN_hx, HEIMDAL_LOCALEDIR);
937 * Make the kerberos library default to the admin KDC.
939 * @param context Kerberos 5 context.
940 * @param flag boolean flag to select if the use the admin KDC or not.
945 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
946 krb5_set_use_admin_kdc (krb5_context context, krb5_boolean flag)
948 context->use_admin_kdc = flag;
952 * Make the kerberos library default to the admin KDC.
954 * @param context Kerberos 5 context.
956 * @return boolean flag to telling the context will use admin KDC as the default KDC.
961 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
962 krb5_get_use_admin_kdc (krb5_context context)
964 return context->use_admin_kdc;
968 * Add extra address to the address list that the library will add to
969 * the client's address list when communicating with the KDC.
971 * @param context Kerberos 5 context.
972 * @param addresses addreses to add
974 * @return Returns 0 to indicate success. Otherwise an kerberos et
975 * error code is returned, see krb5_get_error_message().
980 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
981 krb5_add_extra_addresses(krb5_context context, krb5_addresses *addresses)
984 if(context->extra_addresses)
985 return krb5_append_addresses(context,
986 context->extra_addresses, addresses);
988 return krb5_set_extra_addresses(context, addresses);
992 * Set extra address to the address list that the library will add to
993 * the client's address list when communicating with the KDC.
995 * @param context Kerberos 5 context.
996 * @param addresses addreses to set
998 * @return Returns 0 to indicate success. Otherwise an kerberos et
999 * error code is returned, see krb5_get_error_message().
1004 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1005 krb5_set_extra_addresses(krb5_context context, const krb5_addresses *addresses)
1007 if(context->extra_addresses)
1008 krb5_free_addresses(context, context->extra_addresses);
1010 if(addresses == NULL) {
1011 if(context->extra_addresses != NULL) {
1012 free(context->extra_addresses);
1013 context->extra_addresses = NULL;
1017 if(context->extra_addresses == NULL) {
1018 context->extra_addresses = malloc(sizeof(*context->extra_addresses));
1019 if(context->extra_addresses == NULL) {
1020 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
1024 return krb5_copy_addresses(context, addresses, context->extra_addresses);
1028 * Get extra address to the address list that the library will add to
1029 * the client's address list when communicating with the KDC.
1031 * @param context Kerberos 5 context.
1032 * @param addresses addreses to set
1034 * @return Returns 0 to indicate success. Otherwise an kerberos et
1035 * error code is returned, see krb5_get_error_message().
1040 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1041 krb5_get_extra_addresses(krb5_context context, krb5_addresses *addresses)
1043 if(context->extra_addresses == NULL) {
1044 memset(addresses, 0, sizeof(*addresses));
1047 return krb5_copy_addresses(context,context->extra_addresses, addresses);
1051 * Add extra addresses to ignore when fetching addresses from the
1052 * underlaying operating system.
1054 * @param context Kerberos 5 context.
1055 * @param addresses addreses to ignore
1057 * @return Returns 0 to indicate success. Otherwise an kerberos et
1058 * error code is returned, see krb5_get_error_message().
1063 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1064 krb5_add_ignore_addresses(krb5_context context, krb5_addresses *addresses)
1067 if(context->ignore_addresses)
1068 return krb5_append_addresses(context,
1069 context->ignore_addresses, addresses);
1071 return krb5_set_ignore_addresses(context, addresses);
1075 * Set extra addresses to ignore when fetching addresses from the
1076 * underlaying operating system.
1078 * @param context Kerberos 5 context.
1079 * @param addresses addreses to ignore
1081 * @return Returns 0 to indicate success. Otherwise an kerberos et
1082 * error code is returned, see krb5_get_error_message().
1087 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1088 krb5_set_ignore_addresses(krb5_context context, const krb5_addresses *addresses)
1090 if(context->ignore_addresses)
1091 krb5_free_addresses(context, context->ignore_addresses);
1092 if(addresses == NULL) {
1093 if(context->ignore_addresses != NULL) {
1094 free(context->ignore_addresses);
1095 context->ignore_addresses = NULL;
1099 if(context->ignore_addresses == NULL) {
1100 context->ignore_addresses = malloc(sizeof(*context->ignore_addresses));
1101 if(context->ignore_addresses == NULL) {
1102 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
1106 return krb5_copy_addresses(context, addresses, context->ignore_addresses);
1110 * Get extra addresses to ignore when fetching addresses from the
1111 * underlaying operating system.
1113 * @param context Kerberos 5 context.
1114 * @param addresses list addreses ignored
1116 * @return Returns 0 to indicate success. Otherwise an kerberos et
1117 * error code is returned, see krb5_get_error_message().
1122 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1123 krb5_get_ignore_addresses(krb5_context context, krb5_addresses *addresses)
1125 if(context->ignore_addresses == NULL) {
1126 memset(addresses, 0, sizeof(*addresses));
1129 return krb5_copy_addresses(context, context->ignore_addresses, addresses);
1133 * Set version of fcache that the library should use.
1135 * @param context Kerberos 5 context.
1136 * @param version version number.
1138 * @return Returns 0 to indicate success. Otherwise an kerberos et
1139 * error code is returned, see krb5_get_error_message().
1144 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1145 krb5_set_fcache_version(krb5_context context, int version)
1147 context->fcache_vno = version;
1152 * Get version of fcache that the library should use.
1154 * @param context Kerberos 5 context.
1155 * @param version version number.
1157 * @return Returns 0 to indicate success. Otherwise an kerberos et
1158 * error code is returned, see krb5_get_error_message().
1163 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1164 krb5_get_fcache_version(krb5_context context, int *version)
1166 *version = context->fcache_vno;
1171 * Runtime check if the Kerberos library was complied with thread support.
1173 * @return TRUE if the library was compiled with thread support, FALSE if not.
1179 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1180 krb5_is_thread_safe(void)
1182 #ifdef ENABLE_PTHREAD_SUPPORT
1190 * Set if the library should use DNS to canonicalize hostnames.
1192 * @param context Kerberos 5 context.
1193 * @param flag if its dns canonicalizion is used or not.
1198 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
1199 krb5_set_dns_canonicalize_hostname (krb5_context context, krb5_boolean flag)
1202 context->flags |= KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME;
1204 context->flags &= ~KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME;
1208 * Get if the library uses DNS to canonicalize hostnames.
1210 * @param context Kerberos 5 context.
1212 * @return return non zero if the library uses DNS to canonicalize hostnames.
1217 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1218 krb5_get_dns_canonicalize_hostname (krb5_context context)
1220 return (context->flags & KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME) ? 1 : 0;
1224 * Get current offset in time to the KDC.
1226 * @param context Kerberos 5 context.
1227 * @param sec seconds part of offset.
1228 * @param usec micro seconds part of offset.
1230 * @return returns zero
1235 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1236 krb5_get_kdc_sec_offset (krb5_context context, int32_t *sec, int32_t *usec)
1239 *sec = context->kdc_sec_offset;
1241 *usec = context->kdc_usec_offset;
1246 * Set current offset in time to the KDC.
1248 * @param context Kerberos 5 context.
1249 * @param sec seconds part of offset.
1250 * @param usec micro seconds part of offset.
1252 * @return returns zero
1257 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1258 krb5_set_kdc_sec_offset (krb5_context context, int32_t sec, int32_t usec)
1260 context->kdc_sec_offset = sec;
1262 context->kdc_usec_offset = usec;
1267 * Get max time skew allowed.
1269 * @param context Kerberos 5 context.
1271 * @return timeskew in seconds.
1276 KRB5_LIB_FUNCTION time_t KRB5_LIB_CALL
1277 krb5_get_max_time_skew (krb5_context context)
1279 return context->max_skew;
1283 * Set max time skew allowed.
1285 * @param context Kerberos 5 context.
1286 * @param t timeskew in seconds.
1291 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
1292 krb5_set_max_time_skew (krb5_context context, time_t t)
1294 context->max_skew = t;
1298 * Init encryption types in len, val with etypes.
1300 * @param context Kerberos 5 context.
1301 * @param len output length of val.
1302 * @param val output array of enctypes.
1303 * @param etypes etypes to set val and len to, if NULL, use default enctypes.
1305 * @return Returns 0 to indicate success. Otherwise an kerberos et
1306 * error code is returned, see krb5_get_error_message().
1311 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1312 krb5_init_etype (krb5_context context,
1315 const krb5_enctype *etypes)
1318 krb5_error_code ret;
1319 krb5_enctype *tmp = NULL;
1322 if (etypes == NULL) {
1323 ret = krb5_get_default_in_tkt_etypes(context, &tmp);
1329 for (i = 0; etypes[i]; ++i)
1332 *val = malloc(i * sizeof(**val));
1333 if (i != 0 && *val == NULL) {
1335 krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
1348 * Allow homedir accces
1351 static HEIMDAL_MUTEX homedir_mutex = HEIMDAL_MUTEX_INITIALIZER;
1352 static krb5_boolean allow_homedir = TRUE;
1355 _krb5_homedir_access(krb5_context context)
1360 /* is never allowed for root */
1365 if (context && (context->flags & KRB5_CTX_F_HOMEDIR_ACCESS) == 0)
1368 HEIMDAL_MUTEX_lock(&homedir_mutex);
1369 allow = allow_homedir;
1370 HEIMDAL_MUTEX_unlock(&homedir_mutex);
1375 * Enable and disable home directory access on either the global state
1376 * or the krb5_context state. By calling krb5_set_home_dir_access()
1377 * with context set to NULL, the global state is configured otherwise
1378 * the state for the krb5_context is modified.
1380 * For home directory access to be allowed, both the global state and
1381 * the krb5_context state have to be allowed.
1383 * Administrator (root user), never uses the home directory.
1385 * @param context a Kerberos 5 context or NULL
1386 * @param allow allow if TRUE home directory
1387 * @return the old value
1393 krb5_set_home_dir_access(krb5_context context, krb5_boolean allow)
1397 old = (context->flags & KRB5_CTX_F_HOMEDIR_ACCESS) ? TRUE : FALSE;
1399 context->flags |= KRB5_CTX_F_HOMEDIR_ACCESS;
1401 context->flags &= ~KRB5_CTX_F_HOMEDIR_ACCESS;
1403 HEIMDAL_MUTEX_lock(&homedir_mutex);
1404 old = allow_homedir;
1405 allow_homedir = allow;
1406 HEIMDAL_MUTEX_unlock(&homedir_mutex);