2 * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include "krb5_locl.h"
37 #define INIT_FIELD(C, T, E, D, F) \
38 (C)->E = krb5_config_get_ ## T ## _default ((C), NULL, (D), \
39 "libdefaults", F, NULL)
41 #define INIT_FLAG(C, O, V, D, F) \
43 if (krb5_config_get_bool_default((C), NULL, (D),"libdefaults", F, NULL)) { \
49 * Set the list of etypes `ret_etypes' from the configuration variable
53 static krb5_error_code
54 set_etypes (krb5_context context,
56 krb5_enctype **ret_enctypes)
59 krb5_enctype *etypes = NULL;
61 etypes_str = krb5_config_get_strings(context, NULL, "libdefaults",
65 for(i = 0; etypes_str[i]; i++);
66 etypes = malloc((i+1) * sizeof(*etypes));
68 krb5_config_free_strings (etypes_str);
69 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
72 for(j = 0, k = 0; j < i; j++) {
74 if(krb5_string_to_enctype(context, etypes_str[j], &e) != 0)
76 if (krb5_enctype_valid(context, e) != 0)
80 etypes[k] = ETYPE_NULL;
81 krb5_config_free_strings(etypes_str);
83 *ret_enctypes = etypes;
88 * read variables from the configuration file and set in `context'
91 static krb5_error_code
92 init_context_from_config_file(krb5_context context)
97 krb5_enctype *tmptypes;
99 INIT_FIELD(context, time, max_skew, 5 * 60, "clockskew");
100 INIT_FIELD(context, time, kdc_timeout, 3, "kdc_timeout");
101 INIT_FIELD(context, int, max_retries, 3, "max_retries");
103 INIT_FIELD(context, string, http_proxy, NULL, "http_proxy");
105 ret = set_etypes (context, "default_etypes", &tmptypes);
108 free(context->etypes);
109 context->etypes = tmptypes;
111 ret = set_etypes (context, "default_etypes_des", &tmptypes);
114 free(context->etypes_des);
115 context->etypes_des = tmptypes;
117 /* default keytab name */
120 tmp = getenv("KRB5_KTNAME");
122 context->default_keytab = tmp;
124 INIT_FIELD(context, string, default_keytab,
125 KEYTAB_DEFAULT, "default_keytab_name");
127 INIT_FIELD(context, string, default_keytab_modify,
128 NULL, "default_keytab_modify_name");
130 INIT_FIELD(context, string, time_fmt,
131 "%Y-%m-%dT%H:%M:%S", "time_format");
133 INIT_FIELD(context, string, date_fmt,
134 "%Y-%m-%d", "date_format");
136 INIT_FIELD(context, bool, log_utc,
141 /* init dns-proxy slime */
142 tmp = krb5_config_get_string(context, NULL, "libdefaults",
145 roken_gethostby_setup(context->http_proxy, tmp);
146 krb5_free_host_realm (context, context->default_realms);
147 context->default_realms = NULL;
150 krb5_addresses addresses;
153 krb5_set_extra_addresses(context, NULL);
154 adr = krb5_config_get_strings(context, NULL,
158 memset(&addresses, 0, sizeof(addresses));
159 for(a = adr; a && *a; a++) {
160 ret = krb5_parse_address(context, *a, &addresses);
162 krb5_add_extra_addresses(context, &addresses);
163 krb5_free_addresses(context, &addresses);
166 krb5_config_free_strings(adr);
168 krb5_set_ignore_addresses(context, NULL);
169 adr = krb5_config_get_strings(context, NULL,
173 memset(&addresses, 0, sizeof(addresses));
174 for(a = adr; a && *a; a++) {
175 ret = krb5_parse_address(context, *a, &addresses);
177 krb5_add_ignore_addresses(context, &addresses);
178 krb5_free_addresses(context, &addresses);
181 krb5_config_free_strings(adr);
184 INIT_FIELD(context, bool, scan_interfaces, TRUE, "scan_interfaces");
185 INIT_FIELD(context, int, fcache_vno, 0, "fcache_version");
186 /* prefer dns_lookup_kdc over srv_lookup. */
187 INIT_FIELD(context, bool, srv_lookup, TRUE, "srv_lookup");
188 INIT_FIELD(context, bool, srv_lookup, context->srv_lookup, "dns_lookup_kdc");
189 INIT_FIELD(context, int, large_msg_size, 1400, "large_message_size");
190 INIT_FLAG(context, flags, KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME, TRUE, "dns_canonicalize_hostname");
191 INIT_FLAG(context, flags, KRB5_CTX_F_CHECK_PAC, TRUE, "check_pac");
192 context->default_cc_name = NULL;
193 context->default_cc_name_set = 0;
195 ret = krb5_config_get_bool_default(context, NULL, FALSE,
197 "allow_weak_crypto", NULL);
199 krb5_enctype_enable(context, ETYPE_DES_CBC_CRC);
200 krb5_enctype_enable(context, ETYPE_DES_CBC_MD4);
201 krb5_enctype_enable(context, ETYPE_DES_CBC_MD5);
202 krb5_enctype_enable(context, ETYPE_DES_CBC_NONE);
203 krb5_enctype_enable(context, ETYPE_DES_CFB64_NONE);
204 krb5_enctype_enable(context, ETYPE_DES_PCBC_NONE);
207 s = krb5_config_get_strings(context, NULL, "logging", "krb5", NULL);
210 krb5_initlog(context, "libkrb5", &context->debug_dest);
212 krb5_addlog_dest(context, context->debug_dest, *p);
213 krb5_config_free_strings(s);
220 static krb5_error_code
221 cc_ops_register(krb5_context context)
223 context->cc_ops = NULL;
224 context->num_cc_ops = 0;
226 krb5_cc_register(context, &krb5_acc_ops, TRUE);
227 krb5_cc_register(context, &krb5_fcc_ops, TRUE);
228 krb5_cc_register(context, &krb5_mcc_ops, TRUE);
229 krb5_cc_register(context, &krb5_scc_ops, TRUE);
231 krb5_cc_register(context, &krb5_kcm_ops, TRUE);
236 static krb5_error_code
237 kt_ops_register(krb5_context context)
239 context->num_kt_types = 0;
240 context->kt_types = NULL;
242 krb5_kt_register (context, &krb5_fkt_ops);
243 krb5_kt_register (context, &krb5_wrfkt_ops);
244 krb5_kt_register (context, &krb5_javakt_ops);
245 krb5_kt_register (context, &krb5_mkt_ops);
246 #ifndef HEIMDAL_SMALLER
247 krb5_kt_register (context, &krb5_akf_ops);
249 krb5_kt_register (context, &krb5_any_ops);
255 * Initializes the context structure and reads the configuration file
256 * /etc/krb5.conf. The structure should be freed by calling
257 * krb5_free_context() when it is no longer being used.
259 * @param context pointer to returned context
261 * @return Returns 0 to indicate success. Otherwise an errno code is
262 * returned. Failure means either that something bad happened during
263 * initialization (typically ENOMEM) or that Kerberos should not be
269 krb5_error_code KRB5_LIB_FUNCTION
270 krb5_init_context(krb5_context *context)
278 /* should have a run_once */
279 bindtextdomain(HEIMDAL_TEXTDOMAIN, HEIMDAL_LOCALEDIR);
281 p = calloc(1, sizeof(*p));
285 p->mutex = malloc(sizeof(HEIMDAL_MUTEX));
286 if (p->mutex == NULL) {
290 HEIMDAL_MUTEX_init(p->mutex);
292 p->flags |= KRB5_CTX_F_HOMEDIR_ACCESS;
294 ret = krb5_get_default_config_files(&files);
297 ret = krb5_set_config_files(p, files);
298 krb5_free_config_files(files);
302 /* init error tables */
308 ret = hx509_context_init(&p->hx509ctx);
315 krb5_free_context(p);
322 #ifndef HEIMDAL_SMALLER
328 static krb5_error_code
329 copy_etypes (krb5_context context,
330 krb5_enctype *enctypes,
331 krb5_enctype **ret_enctypes)
335 for (i = 0; enctypes[i]; i++)
339 *ret_enctypes = malloc(sizeof(ret_enctypes[0]) * i);
340 if (*ret_enctypes == NULL) {
341 krb5_set_error_message(context, ENOMEM,
342 N_("malloc: out of memory", ""));
345 memcpy(*ret_enctypes, enctypes, sizeof(ret_enctypes[0]) * i);
350 * Make a copy for the Kerberos 5 context, the new krb5_context shoud
351 * be freed with krb5_free_context().
353 * @param context the Kerberos context to copy
354 * @param out the copy of the Kerberos, set to NULL error.
356 * @return Returns 0 to indicate success. Otherwise an kerberos et
357 * error code is returned, see krb5_get_error_message().
362 krb5_error_code KRB5_LIB_FUNCTION
363 krb5_copy_context(krb5_context context, krb5_context *out)
370 p = calloc(1, sizeof(*p));
372 krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
376 p->mutex = malloc(sizeof(HEIMDAL_MUTEX));
377 if (p->mutex == NULL) {
378 krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
382 HEIMDAL_MUTEX_init(p->mutex);
385 if (context->default_cc_name)
386 p->default_cc_name = strdup(context->default_cc_name);
387 if (context->default_cc_name_env)
388 p->default_cc_name_env = strdup(context->default_cc_name_env);
390 if (context->etypes) {
391 ret = copy_etypes(context, context->etypes, &p->etypes);
395 if (context->etypes_des) {
396 ret = copy_etypes(context, context->etypes_des, &p->etypes_des);
401 if (context->default_realms) {
402 ret = krb5_copy_host_realm(context,
403 context->default_realms, &p->default_realms);
408 ret = _krb5_config_copy(context, context->cf, &p->cf);
412 /* XXX should copy */
418 if(context->warn_dest != NULL)
420 if(context->debug_dest != NULL)
424 ret = krb5_set_extra_addresses(p, context->extra_addresses);
427 ret = krb5_set_extra_addresses(p, context->ignore_addresses);
431 ret = _krb5_copy_send_to_kdc_func(p, context);
440 krb5_free_context(p);
447 * Frees the krb5_context allocated by krb5_init_context().
449 * @param context context to be freed.
454 void KRB5_LIB_FUNCTION
455 krb5_free_context(krb5_context context)
457 if (context->default_cc_name)
458 free(context->default_cc_name);
459 if (context->default_cc_name_env)
460 free(context->default_cc_name_env);
461 free(context->etypes);
462 free(context->etypes_des);
463 krb5_free_host_realm (context, context->default_realms);
464 krb5_config_file_free (context, context->cf);
465 free_error_table (context->et_list);
466 free(context->cc_ops);
467 free(context->kt_types);
468 krb5_clear_error_message(context);
469 if(context->warn_dest != NULL)
470 krb5_closelog(context, context->warn_dest);
471 if(context->debug_dest != NULL)
472 krb5_closelog(context, context->debug_dest);
473 krb5_set_extra_addresses(context, NULL);
474 krb5_set_ignore_addresses(context, NULL);
475 krb5_set_send_to_kdc_func(context, NULL, NULL);
478 hx509_context_free(&context->hx509ctx);
481 HEIMDAL_MUTEX_destroy(context->mutex);
482 free(context->mutex);
484 memset(context, 0, sizeof(*context));
489 * Reinit the context from a new set of filenames.
491 * @param context context to add configuration too.
492 * @param filenames array of filenames, end of list is indicated with a NULL filename.
494 * @return Returns 0 to indicate success. Otherwise an kerberos et
495 * error code is returned, see krb5_get_error_message().
500 krb5_error_code KRB5_LIB_FUNCTION
501 krb5_set_config_files(krb5_context context, char **filenames)
504 krb5_config_binding *tmp = NULL;
505 while(filenames != NULL && *filenames != NULL && **filenames != '\0') {
506 ret = krb5_config_parse_file_multi(context, *filenames, &tmp);
507 if(ret != 0 && ret != ENOENT && ret != EACCES) {
508 krb5_config_file_free(context, tmp);
514 /* with this enabled and if there are no config files, Kerberos is
515 considererd disabled */
519 krb5_config_file_free(context, context->cf);
521 ret = init_context_from_config_file(context);
525 static krb5_error_code
526 add_file(char ***pfilenames, int *len, char *file)
528 char **pp = *pfilenames;
531 for(i = 0; i < *len; i++) {
532 if(strcmp(pp[i], file) == 0) {
538 pp = realloc(*pfilenames, (*len + 2) * sizeof(*pp));
552 * `pq' isn't free, it's up the the caller
555 krb5_error_code KRB5_LIB_FUNCTION
556 krb5_prepend_config_files(const char *filelist, char **pq, char ***ret_pp)
571 l = strsep_copy(&q, ":", NULL, 0);
576 krb5_free_config_files(pp);
579 (void)strsep_copy(&p, ":", fn, l + 1);
580 ret = add_file(&pp, &len, fn);
582 krb5_free_config_files(pp);
590 for (i = 0; pq[i] != NULL; i++) {
593 krb5_free_config_files(pp);
596 ret = add_file(&pp, &len, fn);
598 krb5_free_config_files(pp);
609 * Prepend the filename to the global configuration list.
611 * @param filelist a filename to add to the default list of filename
612 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
614 * @return Returns 0 to indicate success. Otherwise an kerberos et
615 * error code is returned, see krb5_get_error_message().
620 krb5_error_code KRB5_LIB_FUNCTION
621 krb5_prepend_config_files_default(const char *filelist, char ***pfilenames)
624 char **defpp, **pp = NULL;
626 ret = krb5_get_default_config_files(&defpp);
630 ret = krb5_prepend_config_files(filelist, defpp, &pp);
631 krb5_free_config_files(defpp);
640 * Get the global configuration list.
642 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
644 * @return Returns 0 to indicate success. Otherwise an kerberos et
645 * error code is returned, see krb5_get_error_message().
650 krb5_error_code KRB5_LIB_FUNCTION
651 krb5_get_default_config_files(char ***pfilenames)
653 const char *files = NULL;
655 if (pfilenames == NULL)
658 files = getenv("KRB5_CONFIG");
660 files = krb5_config_file;
662 return krb5_prepend_config_files(files, NULL, pfilenames);
666 * Free a list of configuration files.
668 * @param filenames list, terminated with a NULL pointer, to be
669 * freed. NULL is an valid argument.
671 * @return Returns 0 to indicate success. Otherwise an kerberos et
672 * error code is returned, see krb5_get_error_message().
677 void KRB5_LIB_FUNCTION
678 krb5_free_config_files(char **filenames)
681 for(p = filenames; p && *p != NULL; p++)
687 * Returns the list of Kerberos encryption types sorted in order of
688 * most preferred to least preferred encryption type. Note that some
689 * encryption types might be disabled, so you need to check with
690 * krb5_enctype_valid() before using the encryption type.
692 * @return list of enctypes, terminated with ETYPE_NULL. Its a static
693 * array completed into the Kerberos library so the content doesn't
699 const krb5_enctype * KRB5_LIB_FUNCTION
700 krb5_kerberos_enctypes(krb5_context context)
702 static const krb5_enctype p[] = {
703 ETYPE_AES256_CTS_HMAC_SHA1_96,
704 ETYPE_AES128_CTS_HMAC_SHA1_96,
707 ETYPE_ARCFOUR_HMAC_MD5,
717 * set `etype' to a malloced list of the default enctypes
720 static krb5_error_code
721 default_etypes(krb5_context context, krb5_enctype **etype)
723 const krb5_enctype *p;
724 krb5_enctype *e = NULL, *ep;
727 p = krb5_kerberos_enctypes(context);
729 for (i = 0; p[i] != ETYPE_NULL; i++) {
730 if (krb5_enctype_valid(context, p[i]) != 0)
732 ep = realloc(e, (n + 2) * sizeof(*e));
735 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
740 e[n + 1] = ETYPE_NULL;
748 * Set the default encryption types that will be use in communcation
749 * with the KDC, clients and servers.
751 * @param context Kerberos 5 context.
752 * @param etypes Encryption types, array terminated with ETYPE_NULL (0).
754 * @return Returns 0 to indicate success. Otherwise an kerberos et
755 * error code is returned, see krb5_get_error_message().
760 krb5_error_code KRB5_LIB_FUNCTION
761 krb5_set_default_in_tkt_etypes(krb5_context context,
762 const krb5_enctype *etypes)
764 krb5_enctype *p = NULL;
768 for (i = 0; etypes[i]; ++i) {
770 ret = krb5_enctype_valid(context, etypes[i]);
777 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
780 memmove(p, etypes, i * sizeof(krb5_enctype));
783 free(context->etypes);
789 * Get the default encryption types that will be use in communcation
790 * with the KDC, clients and servers.
792 * @param context Kerberos 5 context.
793 * @param etypes Encryption types, array terminated with
794 * ETYPE_NULL(0), caller should free array with krb5_xfree():
796 * @return Returns 0 to indicate success. Otherwise an kerberos et
797 * error code is returned, see krb5_get_error_message().
802 krb5_error_code KRB5_LIB_FUNCTION
803 krb5_get_default_in_tkt_etypes(krb5_context context,
804 krb5_enctype **etypes)
810 if(context->etypes) {
811 for(i = 0; context->etypes[i]; i++);
815 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
818 memmove(p, context->etypes, i * sizeof(krb5_enctype));
820 ret = default_etypes(context, &p);
829 * Init the built-in ets in the Kerberos library.
831 * @param context kerberos context to add the ets too
836 void KRB5_LIB_FUNCTION
837 krb5_init_ets(krb5_context context)
839 if(context->et_list == NULL){
840 krb5_add_et_list(context, initialize_krb5_error_table_r);
841 krb5_add_et_list(context, initialize_asn1_error_table_r);
842 krb5_add_et_list(context, initialize_heim_error_table_r);
844 krb5_add_et_list(context, initialize_k524_error_table_r);
846 #ifdef COM_ERR_BINDDOMAIN_krb5
847 bindtextdomain(COM_ERR_BINDDOMAIN_krb5, HEIMDAL_LOCALEDIR);
848 bindtextdomain(COM_ERR_BINDDOMAIN_asn1, HEIMDAL_LOCALEDIR);
849 bindtextdomain(COM_ERR_BINDDOMAIN_heim, HEIMDAL_LOCALEDIR);
850 bindtextdomain(COM_ERR_BINDDOMAIN_k524, HEIMDAL_LOCALEDIR);
854 krb5_add_et_list(context, initialize_hx_error_table_r);
855 #ifdef COM_ERR_BINDDOMAIN_hx
856 bindtextdomain(COM_ERR_BINDDOMAIN_hx, HEIMDAL_LOCALEDIR);
863 * Make the kerberos library default to the admin KDC.
865 * @param context Kerberos 5 context.
866 * @param flag boolean flag to select if the use the admin KDC or not.
871 void KRB5_LIB_FUNCTION
872 krb5_set_use_admin_kdc (krb5_context context, krb5_boolean flag)
874 context->use_admin_kdc = flag;
878 * Make the kerberos library default to the admin KDC.
880 * @param context Kerberos 5 context.
882 * @return boolean flag to telling the context will use admin KDC as the default KDC.
887 krb5_boolean KRB5_LIB_FUNCTION
888 krb5_get_use_admin_kdc (krb5_context context)
890 return context->use_admin_kdc;
894 * Add extra address to the address list that the library will add to
895 * the client's address list when communicating with the KDC.
897 * @param context Kerberos 5 context.
898 * @param addresses addreses to add
900 * @return Returns 0 to indicate success. Otherwise an kerberos et
901 * error code is returned, see krb5_get_error_message().
906 krb5_error_code KRB5_LIB_FUNCTION
907 krb5_add_extra_addresses(krb5_context context, krb5_addresses *addresses)
910 if(context->extra_addresses)
911 return krb5_append_addresses(context,
912 context->extra_addresses, addresses);
914 return krb5_set_extra_addresses(context, addresses);
918 * Set extra address to the address list that the library will add to
919 * the client's address list when communicating with the KDC.
921 * @param context Kerberos 5 context.
922 * @param addresses addreses to set
924 * @return Returns 0 to indicate success. Otherwise an kerberos et
925 * error code is returned, see krb5_get_error_message().
930 krb5_error_code KRB5_LIB_FUNCTION
931 krb5_set_extra_addresses(krb5_context context, const krb5_addresses *addresses)
933 if(context->extra_addresses)
934 krb5_free_addresses(context, context->extra_addresses);
936 if(addresses == NULL) {
937 if(context->extra_addresses != NULL) {
938 free(context->extra_addresses);
939 context->extra_addresses = NULL;
943 if(context->extra_addresses == NULL) {
944 context->extra_addresses = malloc(sizeof(*context->extra_addresses));
945 if(context->extra_addresses == NULL) {
946 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
950 return krb5_copy_addresses(context, addresses, context->extra_addresses);
954 * Get extra address to the address list that the library will add to
955 * the client's address list when communicating with the KDC.
957 * @param context Kerberos 5 context.
958 * @param addresses addreses to set
960 * @return Returns 0 to indicate success. Otherwise an kerberos et
961 * error code is returned, see krb5_get_error_message().
966 krb5_error_code KRB5_LIB_FUNCTION
967 krb5_get_extra_addresses(krb5_context context, krb5_addresses *addresses)
969 if(context->extra_addresses == NULL) {
970 memset(addresses, 0, sizeof(*addresses));
973 return krb5_copy_addresses(context,context->extra_addresses, addresses);
977 * Add extra addresses to ignore when fetching addresses from the
978 * underlaying operating system.
980 * @param context Kerberos 5 context.
981 * @param addresses addreses to ignore
983 * @return Returns 0 to indicate success. Otherwise an kerberos et
984 * error code is returned, see krb5_get_error_message().
989 krb5_error_code KRB5_LIB_FUNCTION
990 krb5_add_ignore_addresses(krb5_context context, krb5_addresses *addresses)
993 if(context->ignore_addresses)
994 return krb5_append_addresses(context,
995 context->ignore_addresses, addresses);
997 return krb5_set_ignore_addresses(context, addresses);
1001 * Set extra addresses to ignore when fetching addresses from the
1002 * underlaying operating system.
1004 * @param context Kerberos 5 context.
1005 * @param addresses addreses to ignore
1007 * @return Returns 0 to indicate success. Otherwise an kerberos et
1008 * error code is returned, see krb5_get_error_message().
1013 krb5_error_code KRB5_LIB_FUNCTION
1014 krb5_set_ignore_addresses(krb5_context context, const krb5_addresses *addresses)
1016 if(context->ignore_addresses)
1017 krb5_free_addresses(context, context->ignore_addresses);
1018 if(addresses == NULL) {
1019 if(context->ignore_addresses != NULL) {
1020 free(context->ignore_addresses);
1021 context->ignore_addresses = NULL;
1025 if(context->ignore_addresses == NULL) {
1026 context->ignore_addresses = malloc(sizeof(*context->ignore_addresses));
1027 if(context->ignore_addresses == NULL) {
1028 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
1032 return krb5_copy_addresses(context, addresses, context->ignore_addresses);
1036 * Get extra addresses to ignore when fetching addresses from the
1037 * underlaying operating system.
1039 * @param context Kerberos 5 context.
1040 * @param addresses list addreses ignored
1042 * @return Returns 0 to indicate success. Otherwise an kerberos et
1043 * error code is returned, see krb5_get_error_message().
1048 krb5_error_code KRB5_LIB_FUNCTION
1049 krb5_get_ignore_addresses(krb5_context context, krb5_addresses *addresses)
1051 if(context->ignore_addresses == NULL) {
1052 memset(addresses, 0, sizeof(*addresses));
1055 return krb5_copy_addresses(context, context->ignore_addresses, addresses);
1059 * Set version of fcache that the library should use.
1061 * @param context Kerberos 5 context.
1062 * @param version version number.
1064 * @return Returns 0 to indicate success. Otherwise an kerberos et
1065 * error code is returned, see krb5_get_error_message().
1070 krb5_error_code KRB5_LIB_FUNCTION
1071 krb5_set_fcache_version(krb5_context context, int version)
1073 context->fcache_vno = version;
1078 * Get version of fcache that the library should use.
1080 * @param context Kerberos 5 context.
1081 * @param version version number.
1083 * @return Returns 0 to indicate success. Otherwise an kerberos et
1084 * error code is returned, see krb5_get_error_message().
1089 krb5_error_code KRB5_LIB_FUNCTION
1090 krb5_get_fcache_version(krb5_context context, int *version)
1092 *version = context->fcache_vno;
1097 * Runtime check if the Kerberos library was complied with thread support.
1099 * @return TRUE if the library was compiled with thread support, FALSE if not.
1105 krb5_boolean KRB5_LIB_FUNCTION
1106 krb5_is_thread_safe(void)
1108 #ifdef ENABLE_PTHREAD_SUPPORT
1116 * Set if the library should use DNS to canonicalize hostnames.
1118 * @param context Kerberos 5 context.
1119 * @param flag if its dns canonicalizion is used or not.
1124 void KRB5_LIB_FUNCTION
1125 krb5_set_dns_canonicalize_hostname (krb5_context context, krb5_boolean flag)
1128 context->flags |= KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME;
1130 context->flags &= ~KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME;
1134 * Get if the library uses DNS to canonicalize hostnames.
1136 * @param context Kerberos 5 context.
1138 * @return return non zero if the library uses DNS to canonicalize hostnames.
1143 krb5_boolean KRB5_LIB_FUNCTION
1144 krb5_get_dns_canonicalize_hostname (krb5_context context)
1146 return (context->flags & KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME) ? 1 : 0;
1150 * Get current offset in time to the KDC.
1152 * @param context Kerberos 5 context.
1153 * @param sec seconds part of offset.
1154 * @param usec micro seconds part of offset.
1156 * @return returns zero
1161 krb5_error_code KRB5_LIB_FUNCTION
1162 krb5_get_kdc_sec_offset (krb5_context context, int32_t *sec, int32_t *usec)
1165 *sec = context->kdc_sec_offset;
1167 *usec = context->kdc_usec_offset;
1172 * Set current offset in time to the KDC.
1174 * @param context Kerberos 5 context.
1175 * @param sec seconds part of offset.
1176 * @param usec micro seconds part of offset.
1178 * @return returns zero
1183 krb5_error_code KRB5_LIB_FUNCTION
1184 krb5_set_kdc_sec_offset (krb5_context context, int32_t sec, int32_t usec)
1186 context->kdc_sec_offset = sec;
1188 context->kdc_usec_offset = usec;
1193 * Get max time skew allowed.
1195 * @param context Kerberos 5 context.
1197 * @return timeskew in seconds.
1202 time_t KRB5_LIB_FUNCTION
1203 krb5_get_max_time_skew (krb5_context context)
1205 return context->max_skew;
1209 * Set max time skew allowed.
1211 * @param context Kerberos 5 context.
1212 * @param t timeskew in seconds.
1217 void KRB5_LIB_FUNCTION
1218 krb5_set_max_time_skew (krb5_context context, time_t t)
1220 context->max_skew = t;
1224 * Init encryption types in len, val with etypes.
1226 * @param context Kerberos 5 context.
1227 * @param len output length of val.
1228 * @param val output array of enctypes.
1229 * @param etypes etypes to set val and len to, if NULL, use default enctypes.
1231 * @return Returns 0 to indicate success. Otherwise an kerberos et
1232 * error code is returned, see krb5_get_error_message().
1237 krb5_error_code KRB5_LIB_FUNCTION
1238 krb5_init_etype (krb5_context context,
1241 const krb5_enctype *etypes)
1244 krb5_error_code ret;
1245 krb5_enctype *tmp = NULL;
1248 if (etypes == NULL) {
1249 ret = krb5_get_default_in_tkt_etypes(context, &tmp);
1255 for (i = 0; etypes[i]; ++i)
1258 *val = malloc(i * sizeof(**val));
1259 if (i != 0 && *val == NULL) {
1261 krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
1274 * Allow homedir accces
1277 static HEIMDAL_MUTEX homedir_mutex = HEIMDAL_MUTEX_INITIALIZER;
1278 static krb5_boolean allow_homedir = TRUE;
1281 _krb5_homedir_access(krb5_context context)
1285 /* is never allowed for root */
1289 if (context && (context->flags & KRB5_CTX_F_HOMEDIR_ACCESS) == 0)
1292 HEIMDAL_MUTEX_lock(&homedir_mutex);
1293 allow = allow_homedir;
1294 HEIMDAL_MUTEX_unlock(&homedir_mutex);
1299 * Enable and disable home directory access on either the global state
1300 * or the krb5_context state. By calling krb5_set_home_dir_access()
1301 * with context set to NULL, the global state is configured otherwise
1302 * the state for the krb5_context is modified.
1304 * For home directory access to be allowed, both the global state and
1305 * the krb5_context state have to be allowed.
1307 * Administrator (root user), never uses the home directory.
1309 * @param context a Kerberos 5 context or NULL
1310 * @param allow allow if TRUE home directory
1311 * @return the old value
1316 krb5_set_home_dir_access(krb5_context context, krb5_boolean allow)
1320 old = (context->flags & KRB5_CTX_F_HOMEDIR_ACCESS) ? TRUE : FALSE;
1322 context->flags |= KRB5_CTX_F_HOMEDIR_ACCESS;
1324 context->flags &= ~KRB5_CTX_F_HOMEDIR_ACCESS;
1326 HEIMDAL_MUTEX_lock(&homedir_mutex);
1327 old = allow_homedir;
1328 allow_homedir = allow;
1329 HEIMDAL_MUTEX_unlock(&homedir_mutex);