2 * Copyright (c) 1997 - 2010 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"
40 #define INIT_FIELD(C, T, E, D, F) \
41 (C)->E = krb5_config_get_ ## T ## _default ((C), NULL, (D), \
42 "libdefaults", F, NULL)
44 #define INIT_FLAG(C, O, V, D, F) \
46 if (krb5_config_get_bool_default((C), NULL, (D),"libdefaults", F, NULL)) { \
52 * Set the list of etypes `ret_etypes' from the configuration variable
56 static krb5_error_code
57 set_etypes (krb5_context context
,
59 krb5_enctype
**ret_enctypes
)
62 krb5_enctype
*etypes
= NULL
;
64 etypes_str
= krb5_config_get_strings(context
, NULL
, "libdefaults",
68 for(i
= 0; etypes_str
[i
]; i
++);
69 etypes
= malloc((i
+1) * sizeof(*etypes
));
71 krb5_config_free_strings (etypes_str
);
72 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
75 for(j
= 0, k
= 0; j
< i
; j
++) {
77 if(krb5_string_to_enctype(context
, etypes_str
[j
], &e
) != 0)
79 if (krb5_enctype_valid(context
, e
) != 0)
83 etypes
[k
] = ETYPE_NULL
;
84 krb5_config_free_strings(etypes_str
);
86 *ret_enctypes
= etypes
;
91 * read variables from the configuration file and set in `context'
94 static krb5_error_code
95 init_context_from_config_file(krb5_context context
)
100 krb5_enctype
*tmptypes
;
102 INIT_FIELD(context
, time
, max_skew
, 5 * 60, "clockskew");
103 INIT_FIELD(context
, time
, kdc_timeout
, 3, "kdc_timeout");
104 INIT_FIELD(context
, int, max_retries
, 3, "max_retries");
106 INIT_FIELD(context
, string
, http_proxy
, NULL
, "http_proxy");
108 ret
= krb5_config_get_bool_default(context
, NULL
, FALSE
,
110 "allow_weak_crypto", NULL
);
112 krb5_enctype_enable(context
, ETYPE_DES_CBC_CRC
);
113 krb5_enctype_enable(context
, ETYPE_DES_CBC_MD4
);
114 krb5_enctype_enable(context
, ETYPE_DES_CBC_MD5
);
115 krb5_enctype_enable(context
, ETYPE_DES_CBC_NONE
);
116 krb5_enctype_enable(context
, ETYPE_DES_CFB64_NONE
);
117 krb5_enctype_enable(context
, ETYPE_DES_PCBC_NONE
);
120 ret
= set_etypes (context
, "default_etypes", &tmptypes
);
123 free(context
->etypes
);
124 context
->etypes
= tmptypes
;
126 ret
= set_etypes (context
, "default_etypes_des", &tmptypes
);
129 free(context
->etypes_des
);
130 context
->etypes_des
= tmptypes
;
132 ret
= set_etypes (context
, "default_as_etypes", &tmptypes
);
135 free(context
->as_etypes
);
136 context
->as_etypes
= tmptypes
;
138 ret
= set_etypes (context
, "default_tgs_etypes", &tmptypes
);
141 free(context
->tgs_etypes
);
142 context
->tgs_etypes
= tmptypes
;
144 ret
= set_etypes (context
, "permitted_enctypes", &tmptypes
);
147 free(context
->permitted_enctypes
);
148 context
->permitted_enctypes
= tmptypes
;
150 /* default keytab name */
153 tmp
= getenv("KRB5_KTNAME");
155 context
->default_keytab
= tmp
;
157 INIT_FIELD(context
, string
, default_keytab
,
158 KEYTAB_DEFAULT
, "default_keytab_name");
160 INIT_FIELD(context
, string
, default_keytab_modify
,
161 NULL
, "default_keytab_modify_name");
163 INIT_FIELD(context
, string
, time_fmt
,
164 "%Y-%m-%dT%H:%M:%S", "time_format");
166 INIT_FIELD(context
, string
, date_fmt
,
167 "%Y-%m-%d", "date_format");
169 INIT_FIELD(context
, bool, log_utc
,
174 /* init dns-proxy slime */
175 tmp
= krb5_config_get_string(context
, NULL
, "libdefaults",
178 roken_gethostby_setup(context
->http_proxy
, tmp
);
179 krb5_free_host_realm (context
, context
->default_realms
);
180 context
->default_realms
= NULL
;
183 krb5_addresses addresses
;
186 krb5_set_extra_addresses(context
, NULL
);
187 adr
= krb5_config_get_strings(context
, NULL
,
191 memset(&addresses
, 0, sizeof(addresses
));
192 for(a
= adr
; a
&& *a
; a
++) {
193 ret
= krb5_parse_address(context
, *a
, &addresses
);
195 krb5_add_extra_addresses(context
, &addresses
);
196 krb5_free_addresses(context
, &addresses
);
199 krb5_config_free_strings(adr
);
201 krb5_set_ignore_addresses(context
, NULL
);
202 adr
= krb5_config_get_strings(context
, NULL
,
206 memset(&addresses
, 0, sizeof(addresses
));
207 for(a
= adr
; a
&& *a
; a
++) {
208 ret
= krb5_parse_address(context
, *a
, &addresses
);
210 krb5_add_ignore_addresses(context
, &addresses
);
211 krb5_free_addresses(context
, &addresses
);
214 krb5_config_free_strings(adr
);
217 INIT_FIELD(context
, bool, scan_interfaces
, TRUE
, "scan_interfaces");
218 INIT_FIELD(context
, int, fcache_vno
, 0, "fcache_version");
219 /* prefer dns_lookup_kdc over srv_lookup. */
220 INIT_FIELD(context
, bool, srv_lookup
, TRUE
, "srv_lookup");
221 INIT_FIELD(context
, bool, srv_lookup
, context
->srv_lookup
, "dns_lookup_kdc");
222 INIT_FIELD(context
, int, large_msg_size
, 1400, "large_message_size");
223 INIT_FLAG(context
, flags
, KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
, TRUE
, "dns_canonicalize_hostname");
224 INIT_FLAG(context
, flags
, KRB5_CTX_F_CHECK_PAC
, TRUE
, "check_pac");
225 context
->default_cc_name
= NULL
;
226 context
->default_cc_name_set
= 0;
228 s
= krb5_config_get_strings(context
, NULL
, "logging", "krb5", NULL
);
231 krb5_initlog(context
, "libkrb5", &context
->debug_dest
);
233 krb5_addlog_dest(context
, context
->debug_dest
, *p
);
234 krb5_config_free_strings(s
);
237 tmp
= krb5_config_get_string(context
, NULL
, "libdefaults",
238 "check-rd-req-server", NULL
);
239 if (tmp
== NULL
&& !issuid())
240 tmp
= getenv("KRB5_CHECK_RD_REQ_SERVER");
242 if (strcasecmp(tmp
, "ignore") == 0)
243 context
->flags
|= KRB5_CTX_F_RD_REQ_IGNORE
;
249 static krb5_error_code
250 cc_ops_register(krb5_context context
)
252 context
->cc_ops
= NULL
;
253 context
->num_cc_ops
= 0;
255 #ifndef KCM_IS_API_CACHE
256 krb5_cc_register(context
, &krb5_acc_ops
, TRUE
);
258 krb5_cc_register(context
, &krb5_fcc_ops
, TRUE
);
259 krb5_cc_register(context
, &krb5_mcc_ops
, TRUE
);
261 krb5_cc_register(context
, &krb5_scc_ops
, TRUE
);
264 #ifdef KCM_IS_API_CACHE
265 krb5_cc_register(context
, &krb5_akcm_ops
, TRUE
);
267 krb5_cc_register(context
, &krb5_kcm_ops
, TRUE
);
269 _krb5_load_ccache_plugins(context
);
273 static krb5_error_code
274 cc_ops_copy(krb5_context context
, const krb5_context src_context
)
276 const krb5_cc_ops
**cc_ops
;
278 context
->cc_ops
= NULL
;
279 context
->num_cc_ops
= 0;
281 if (src_context
->num_cc_ops
== 0)
284 cc_ops
= malloc(sizeof(cc_ops
[0]) * src_context
->num_cc_ops
);
285 if (cc_ops
== NULL
) {
286 krb5_set_error_message(context
, KRB5_CC_NOMEM
,
287 N_("malloc: out of memory", ""));
288 return KRB5_CC_NOMEM
;
291 memcpy(rk_UNCONST(cc_ops
), src_context
->cc_ops
,
292 sizeof(cc_ops
[0]) * src_context
->num_cc_ops
);
293 context
->cc_ops
= cc_ops
;
294 context
->num_cc_ops
= src_context
->num_cc_ops
;
299 static krb5_error_code
300 kt_ops_register(krb5_context context
)
302 context
->num_kt_types
= 0;
303 context
->kt_types
= NULL
;
305 krb5_kt_register (context
, &krb5_fkt_ops
);
306 krb5_kt_register (context
, &krb5_wrfkt_ops
);
307 krb5_kt_register (context
, &krb5_javakt_ops
);
308 krb5_kt_register (context
, &krb5_mkt_ops
);
309 #ifndef HEIMDAL_SMALLER
310 krb5_kt_register (context
, &krb5_akf_ops
);
312 krb5_kt_register (context
, &krb5_any_ops
);
316 static krb5_error_code
317 kt_ops_copy(krb5_context context
, const krb5_context src_context
)
319 context
->num_kt_types
= 0;
320 context
->kt_types
= NULL
;
322 if (src_context
->num_kt_types
== 0)
325 context
->kt_types
= malloc(sizeof(context
->kt_types
[0]) * src_context
->num_kt_types
);
326 if (context
->kt_types
== NULL
) {
327 krb5_set_error_message(context
, ENOMEM
,
328 N_("malloc: out of memory", ""));
332 context
->num_kt_types
= src_context
->num_kt_types
;
333 memcpy(context
->kt_types
, src_context
->kt_types
,
334 sizeof(context
->kt_types
[0]) * src_context
->num_kt_types
);
339 static const char *sysplugin_dirs
[] = {
340 LIBDIR
"/plugin/krb5",
342 "/Library/KerberosPlugins/KerberosFrameworkPlugins",
343 "/System/Library/KerberosPlugins/KerberosFrameworkPlugins",
349 init_context_once(void *ctx
)
351 krb5_context context
= ctx
;
353 _krb5_load_plugins(context
, "krb5", sysplugin_dirs
);
355 bindtextdomain(HEIMDAL_TEXTDOMAIN
, HEIMDAL_LOCALEDIR
);
360 * Initializes the context structure and reads the configuration file
361 * /etc/krb5.conf. The structure should be freed by calling
362 * krb5_free_context() when it is no longer being used.
364 * @param context pointer to returned context
366 * @return Returns 0 to indicate success. Otherwise an errno code is
367 * returned. Failure means either that something bad happened during
368 * initialization (typically ENOMEM) or that Kerberos should not be
374 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
375 krb5_init_context(krb5_context
*context
)
377 static heim_base_once_t init_context
= HEIM_BASE_ONCE_INIT
;
384 p
= calloc(1, sizeof(*p
));
388 p
->mutex
= malloc(sizeof(HEIMDAL_MUTEX
));
389 if (p
->mutex
== NULL
) {
393 HEIMDAL_MUTEX_init(p
->mutex
);
395 p
->flags
|= KRB5_CTX_F_HOMEDIR_ACCESS
;
397 ret
= krb5_get_default_config_files(&files
);
400 ret
= krb5_set_config_files(p
, files
);
401 krb5_free_config_files(files
);
405 /* init error tables */
411 ret
= hx509_context_init(&p
->hx509ctx
);
416 p
->flags
|= KRB5_CTX_F_SOCKETS_INITIALIZED
;
420 krb5_free_context(p
);
423 heim_base_once_f(&init_context
, p
, init_context_once
);
429 #ifndef HEIMDAL_SMALLER
431 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
432 krb5_get_permitted_enctypes(krb5_context context
,
433 krb5_enctype
**etypes
)
435 return krb5_get_default_in_tkt_etypes(context
, KRB5_PDU_NONE
, etypes
);
442 static krb5_error_code
443 copy_etypes (krb5_context context
,
444 krb5_enctype
*enctypes
,
445 krb5_enctype
**ret_enctypes
)
449 for (i
= 0; enctypes
[i
]; i
++)
453 *ret_enctypes
= malloc(sizeof(ret_enctypes
[0]) * i
);
454 if (*ret_enctypes
== NULL
) {
455 krb5_set_error_message(context
, ENOMEM
,
456 N_("malloc: out of memory", ""));
459 memcpy(*ret_enctypes
, enctypes
, sizeof(ret_enctypes
[0]) * i
);
464 * Make a copy for the Kerberos 5 context, the new krb5_context shoud
465 * be freed with krb5_free_context().
467 * @param context the Kerberos context to copy
468 * @param out the copy of the Kerberos, set to NULL error.
470 * @return Returns 0 to indicate success. Otherwise an kerberos et
471 * error code is returned, see krb5_get_error_message().
476 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
477 krb5_copy_context(krb5_context context
, krb5_context
*out
)
484 p
= calloc(1, sizeof(*p
));
486 krb5_set_error_message(context
, ENOMEM
, N_("malloc: out of memory", ""));
490 p
->mutex
= malloc(sizeof(HEIMDAL_MUTEX
));
491 if (p
->mutex
== NULL
) {
492 krb5_set_error_message(context
, ENOMEM
, N_("malloc: out of memory", ""));
496 HEIMDAL_MUTEX_init(p
->mutex
);
499 if (context
->default_cc_name
)
500 p
->default_cc_name
= strdup(context
->default_cc_name
);
501 if (context
->default_cc_name_env
)
502 p
->default_cc_name_env
= strdup(context
->default_cc_name_env
);
504 if (context
->etypes
) {
505 ret
= copy_etypes(context
, context
->etypes
, &p
->etypes
);
509 if (context
->etypes_des
) {
510 ret
= copy_etypes(context
, context
->etypes_des
, &p
->etypes_des
);
515 if (context
->default_realms
) {
516 ret
= krb5_copy_host_realm(context
,
517 context
->default_realms
, &p
->default_realms
);
522 ret
= _krb5_config_copy(context
, context
->cf
, &p
->cf
);
526 /* XXX should copy */
529 cc_ops_copy(p
, context
);
530 kt_ops_copy(p
, context
);
533 if(context
->warn_dest
!= NULL
)
535 if(context
->debug_dest
!= NULL
)
539 ret
= krb5_set_extra_addresses(p
, context
->extra_addresses
);
542 ret
= krb5_set_extra_addresses(p
, context
->ignore_addresses
);
546 ret
= _krb5_copy_send_to_kdc_func(p
, context
);
555 krb5_free_context(p
);
562 * Frees the krb5_context allocated by krb5_init_context().
564 * @param context context to be freed.
569 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
570 krb5_free_context(krb5_context context
)
572 if (context
->default_cc_name
)
573 free(context
->default_cc_name
);
574 if (context
->default_cc_name_env
)
575 free(context
->default_cc_name_env
);
576 free(context
->etypes
);
577 free(context
->etypes_des
);
578 krb5_free_host_realm (context
, context
->default_realms
);
579 krb5_config_file_free (context
, context
->cf
);
580 free_error_table (context
->et_list
);
581 free(rk_UNCONST(context
->cc_ops
));
582 free(context
->kt_types
);
583 krb5_clear_error_message(context
);
584 if(context
->warn_dest
!= NULL
)
585 krb5_closelog(context
, context
->warn_dest
);
586 if(context
->debug_dest
!= NULL
)
587 krb5_closelog(context
, context
->debug_dest
);
588 krb5_set_extra_addresses(context
, NULL
);
589 krb5_set_ignore_addresses(context
, NULL
);
590 krb5_set_send_to_kdc_func(context
, NULL
, NULL
);
593 if (context
->hx509ctx
)
594 hx509_context_free(&context
->hx509ctx
);
597 HEIMDAL_MUTEX_destroy(context
->mutex
);
598 free(context
->mutex
);
599 if (context
->flags
& KRB5_CTX_F_SOCKETS_INITIALIZED
) {
603 memset(context
, 0, sizeof(*context
));
608 * Reinit the context from a new set of filenames.
610 * @param context context to add configuration too.
611 * @param filenames array of filenames, end of list is indicated with a NULL filename.
613 * @return Returns 0 to indicate success. Otherwise an kerberos et
614 * error code is returned, see krb5_get_error_message().
619 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
620 krb5_set_config_files(krb5_context context
, char **filenames
)
623 krb5_config_binding
*tmp
= NULL
;
624 while(filenames
!= NULL
&& *filenames
!= NULL
&& **filenames
!= '\0') {
625 ret
= krb5_config_parse_file_multi(context
, *filenames
, &tmp
);
626 if(ret
!= 0 && ret
!= ENOENT
&& ret
!= EACCES
&& ret
!= EPERM
) {
627 krb5_config_file_free(context
, tmp
);
633 /* with this enabled and if there are no config files, Kerberos is
634 considererd disabled */
640 _krb5_load_config_from_registry(context
, &tmp
);
643 krb5_config_file_free(context
, context
->cf
);
645 ret
= init_context_from_config_file(context
);
649 static krb5_error_code
650 add_file(char ***pfilenames
, int *len
, char *file
)
652 char **pp
= *pfilenames
;
655 for(i
= 0; i
< *len
; i
++) {
656 if(strcmp(pp
[i
], file
) == 0) {
662 pp
= realloc(*pfilenames
, (*len
+ 2) * sizeof(*pp
));
676 * `pq' isn't free, it's up the the caller
679 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
680 krb5_prepend_config_files(const char *filelist
, char **pq
, char ***ret_pp
)
695 l
= strsep_copy(&q
, PATH_SEP
, NULL
, 0);
700 krb5_free_config_files(pp
);
703 (void)strsep_copy(&p
, PATH_SEP
, fn
, l
+ 1);
704 ret
= add_file(&pp
, &len
, fn
);
706 krb5_free_config_files(pp
);
714 for (i
= 0; pq
[i
] != NULL
; i
++) {
717 krb5_free_config_files(pp
);
720 ret
= add_file(&pp
, &len
, fn
);
722 krb5_free_config_files(pp
);
733 * Prepend the filename to the global configuration list.
735 * @param filelist a filename to add to the default list of filename
736 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
738 * @return Returns 0 to indicate success. Otherwise an kerberos et
739 * error code is returned, see krb5_get_error_message().
744 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
745 krb5_prepend_config_files_default(const char *filelist
, char ***pfilenames
)
748 char **defpp
, **pp
= NULL
;
750 ret
= krb5_get_default_config_files(&defpp
);
754 ret
= krb5_prepend_config_files(filelist
, defpp
, &pp
);
755 krb5_free_config_files(defpp
);
766 * Checks the registry for configuration file location
768 * Kerberos for Windows and other legacy Kerberos applications expect
769 * to find the configuration file location in the
770 * SOFTWARE\MIT\Kerberos registry key under the value "config".
773 _krb5_get_default_config_config_files_from_registry()
775 static const char * KeyName
= "Software\\MIT\\Kerberos";
776 char *config_file
= NULL
;
780 rcode
= RegOpenKeyEx(HKEY_CURRENT_USER
, KeyName
, 0, KEY_READ
, &key
);
781 if (rcode
== ERROR_SUCCESS
) {
782 config_file
= _krb5_parse_reg_value_as_multi_string(NULL
, key
, "config",
783 REG_NONE
, 0, PATH_SEP
);
790 rcode
= RegOpenKeyEx(HKEY_LOCAL_MACHINE
, KeyName
, 0, KEY_READ
, &key
);
791 if (rcode
== ERROR_SUCCESS
) {
792 config_file
= _krb5_parse_reg_value_as_multi_string(NULL
, key
, "config",
793 REG_NONE
, 0, PATH_SEP
);
803 * Get the global configuration list.
805 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
807 * @return Returns 0 to indicate success. Otherwise an kerberos et
808 * error code is returned, see krb5_get_error_message().
813 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
814 krb5_get_default_config_files(char ***pfilenames
)
816 const char *files
= NULL
;
818 if (pfilenames
== NULL
)
821 files
= getenv("KRB5_CONFIG");
826 reg_files
= _krb5_get_default_config_config_files_from_registry();
827 if (reg_files
!= NULL
) {
828 krb5_error_code code
;
830 code
= krb5_prepend_config_files(reg_files
, NULL
, pfilenames
);
839 files
= krb5_config_file
;
841 return krb5_prepend_config_files(files
, NULL
, pfilenames
);
845 * Free a list of configuration files.
847 * @param filenames list, terminated with a NULL pointer, to be
848 * freed. NULL is an valid argument.
850 * @return Returns 0 to indicate success. Otherwise an kerberos et
851 * error code is returned, see krb5_get_error_message().
856 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
857 krb5_free_config_files(char **filenames
)
860 for(p
= filenames
; p
&& *p
!= NULL
; p
++)
866 * Returns the list of Kerberos encryption types sorted in order of
867 * most preferred to least preferred encryption type. Note that some
868 * encryption types might be disabled, so you need to check with
869 * krb5_enctype_valid() before using the encryption type.
871 * @return list of enctypes, terminated with ETYPE_NULL. Its a static
872 * array completed into the Kerberos library so the content doesn't
878 KRB5_LIB_FUNCTION
const krb5_enctype
* KRB5_LIB_CALL
879 krb5_kerberos_enctypes(krb5_context context
)
881 static const krb5_enctype p
[] = {
882 ETYPE_AES256_CTS_HMAC_SHA1_96
,
883 ETYPE_AES128_CTS_HMAC_SHA1_96
,
886 ETYPE_ARCFOUR_HMAC_MD5
,
899 static krb5_error_code
900 copy_enctypes(krb5_context context
,
901 const krb5_enctype
*in
,
904 krb5_enctype
*p
= NULL
;
907 for (n
= 0; in
[n
]; n
++)
912 return krb5_enomem(context
);
913 for (n
= 0, m
= 0; in
[n
]; n
++) {
914 if (krb5_enctype_valid(context
, in
[n
]) != 0)
918 p
[m
] = KRB5_ENCTYPE_NULL
;
921 krb5_set_error_message (context
, KRB5_PROG_ETYPE_NOSUPP
,
922 N_("no valid enctype set", ""));
923 return KRB5_PROG_ETYPE_NOSUPP
;
931 * set `etype' to a malloced list of the default enctypes
934 static krb5_error_code
935 default_etypes(krb5_context context
, krb5_enctype
**etype
)
937 const krb5_enctype
*p
= krb5_kerberos_enctypes(context
);
938 return copy_enctypes(context
, p
, etype
);
942 * Set the default encryption types that will be use in communcation
943 * with the KDC, clients and servers.
945 * @param context Kerberos 5 context.
946 * @param etypes Encryption types, array terminated with ETYPE_NULL (0).
948 * @return Returns 0 to indicate success. Otherwise an kerberos et
949 * error code is returned, see krb5_get_error_message().
954 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
955 krb5_set_default_in_tkt_etypes(krb5_context context
,
956 const krb5_enctype
*etypes
)
959 krb5_enctype
*p
= NULL
;
962 ret
= copy_enctypes(context
, etypes
, &p
);
967 free(context
->etypes
);
973 * Get the default encryption types that will be use in communcation
974 * with the KDC, clients and servers.
976 * @param context Kerberos 5 context.
977 * @param etypes Encryption types, array terminated with
978 * ETYPE_NULL(0), caller should free array with krb5_xfree():
980 * @return Returns 0 to indicate success. Otherwise an kerberos et
981 * error code is returned, see krb5_get_error_message().
986 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
987 krb5_get_default_in_tkt_etypes(krb5_context context
,
989 krb5_enctype
**etypes
)
991 krb5_enctype
*enctypes
= NULL
;
995 heim_assert(pdu_type
== KRB5_PDU_AS_REQUEST
||
996 pdu_type
== KRB5_PDU_TGS_REQUEST
||
997 pdu_type
== KRB5_PDU_NONE
, "pdu contant not as expected");
999 if (pdu_type
== KRB5_PDU_AS_REQUEST
&& context
->as_etypes
!= NULL
)
1000 enctypes
= context
->as_etypes
;
1001 else if (pdu_type
== KRB5_PDU_TGS_REQUEST
&& context
->tgs_etypes
!= NULL
)
1002 enctypes
= context
->tgs_etypes
;
1003 else if (context
->etypes
!= NULL
)
1004 enctypes
= context
->etypes
;
1006 if (enctypes
!= NULL
) {
1007 ret
= copy_enctypes(context
, enctypes
, &p
);
1011 ret
= default_etypes(context
, &p
);
1020 * Init the built-in ets in the Kerberos library.
1022 * @param context kerberos context to add the ets too
1027 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1028 krb5_init_ets(krb5_context context
)
1030 if(context
->et_list
== NULL
){
1031 krb5_add_et_list(context
, initialize_krb5_error_table_r
);
1032 krb5_add_et_list(context
, initialize_asn1_error_table_r
);
1033 krb5_add_et_list(context
, initialize_heim_error_table_r
);
1035 krb5_add_et_list(context
, initialize_k524_error_table_r
);
1037 #ifdef COM_ERR_BINDDOMAIN_krb5
1038 bindtextdomain(COM_ERR_BINDDOMAIN_krb5
, HEIMDAL_LOCALEDIR
);
1039 bindtextdomain(COM_ERR_BINDDOMAIN_asn1
, HEIMDAL_LOCALEDIR
);
1040 bindtextdomain(COM_ERR_BINDDOMAIN_heim
, HEIMDAL_LOCALEDIR
);
1041 bindtextdomain(COM_ERR_BINDDOMAIN_k524
, HEIMDAL_LOCALEDIR
);
1045 krb5_add_et_list(context
, initialize_hx_error_table_r
);
1046 #ifdef COM_ERR_BINDDOMAIN_hx
1047 bindtextdomain(COM_ERR_BINDDOMAIN_hx
, HEIMDAL_LOCALEDIR
);
1054 * Make the kerberos library default to the admin KDC.
1056 * @param context Kerberos 5 context.
1057 * @param flag boolean flag to select if the use the admin KDC or not.
1062 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1063 krb5_set_use_admin_kdc (krb5_context context
, krb5_boolean flag
)
1065 context
->use_admin_kdc
= flag
;
1069 * Make the kerberos library default to the admin KDC.
1071 * @param context Kerberos 5 context.
1073 * @return boolean flag to telling the context will use admin KDC as the default KDC.
1078 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1079 krb5_get_use_admin_kdc (krb5_context context
)
1081 return context
->use_admin_kdc
;
1085 * Add extra address to the address list that the library will add to
1086 * the client's address list when communicating with the KDC.
1088 * @param context Kerberos 5 context.
1089 * @param addresses addreses to add
1091 * @return Returns 0 to indicate success. Otherwise an kerberos et
1092 * error code is returned, see krb5_get_error_message().
1097 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1098 krb5_add_extra_addresses(krb5_context context
, krb5_addresses
*addresses
)
1101 if(context
->extra_addresses
)
1102 return krb5_append_addresses(context
,
1103 context
->extra_addresses
, addresses
);
1105 return krb5_set_extra_addresses(context
, addresses
);
1109 * Set extra address to the address list that the library will add to
1110 * the client's address list when communicating with the KDC.
1112 * @param context Kerberos 5 context.
1113 * @param addresses addreses to set
1115 * @return Returns 0 to indicate success. Otherwise an kerberos et
1116 * error code is returned, see krb5_get_error_message().
1121 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1122 krb5_set_extra_addresses(krb5_context context
, const krb5_addresses
*addresses
)
1124 if(context
->extra_addresses
)
1125 krb5_free_addresses(context
, context
->extra_addresses
);
1127 if(addresses
== NULL
) {
1128 if(context
->extra_addresses
!= NULL
) {
1129 free(context
->extra_addresses
);
1130 context
->extra_addresses
= NULL
;
1134 if(context
->extra_addresses
== NULL
) {
1135 context
->extra_addresses
= malloc(sizeof(*context
->extra_addresses
));
1136 if(context
->extra_addresses
== NULL
) {
1137 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
1141 return krb5_copy_addresses(context
, addresses
, context
->extra_addresses
);
1145 * Get extra address to the address list that the library will add to
1146 * the client's address list when communicating with the KDC.
1148 * @param context Kerberos 5 context.
1149 * @param addresses addreses to set
1151 * @return Returns 0 to indicate success. Otherwise an kerberos et
1152 * error code is returned, see krb5_get_error_message().
1157 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1158 krb5_get_extra_addresses(krb5_context context
, krb5_addresses
*addresses
)
1160 if(context
->extra_addresses
== NULL
) {
1161 memset(addresses
, 0, sizeof(*addresses
));
1164 return krb5_copy_addresses(context
,context
->extra_addresses
, addresses
);
1168 * Add extra addresses to ignore when fetching addresses from the
1169 * underlaying operating system.
1171 * @param context Kerberos 5 context.
1172 * @param addresses addreses to ignore
1174 * @return Returns 0 to indicate success. Otherwise an kerberos et
1175 * error code is returned, see krb5_get_error_message().
1180 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1181 krb5_add_ignore_addresses(krb5_context context
, krb5_addresses
*addresses
)
1184 if(context
->ignore_addresses
)
1185 return krb5_append_addresses(context
,
1186 context
->ignore_addresses
, addresses
);
1188 return krb5_set_ignore_addresses(context
, addresses
);
1192 * Set extra addresses to ignore when fetching addresses from the
1193 * underlaying operating system.
1195 * @param context Kerberos 5 context.
1196 * @param addresses addreses to ignore
1198 * @return Returns 0 to indicate success. Otherwise an kerberos et
1199 * error code is returned, see krb5_get_error_message().
1204 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1205 krb5_set_ignore_addresses(krb5_context context
, const krb5_addresses
*addresses
)
1207 if(context
->ignore_addresses
)
1208 krb5_free_addresses(context
, context
->ignore_addresses
);
1209 if(addresses
== NULL
) {
1210 if(context
->ignore_addresses
!= NULL
) {
1211 free(context
->ignore_addresses
);
1212 context
->ignore_addresses
= NULL
;
1216 if(context
->ignore_addresses
== NULL
) {
1217 context
->ignore_addresses
= malloc(sizeof(*context
->ignore_addresses
));
1218 if(context
->ignore_addresses
== NULL
) {
1219 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
1223 return krb5_copy_addresses(context
, addresses
, context
->ignore_addresses
);
1227 * Get extra addresses to ignore when fetching addresses from the
1228 * underlaying operating system.
1230 * @param context Kerberos 5 context.
1231 * @param addresses list addreses ignored
1233 * @return Returns 0 to indicate success. Otherwise an kerberos et
1234 * error code is returned, see krb5_get_error_message().
1239 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1240 krb5_get_ignore_addresses(krb5_context context
, krb5_addresses
*addresses
)
1242 if(context
->ignore_addresses
== NULL
) {
1243 memset(addresses
, 0, sizeof(*addresses
));
1246 return krb5_copy_addresses(context
, context
->ignore_addresses
, addresses
);
1250 * Set version of fcache that the library should use.
1252 * @param context Kerberos 5 context.
1253 * @param version version number.
1255 * @return Returns 0 to indicate success. Otherwise an kerberos et
1256 * error code is returned, see krb5_get_error_message().
1261 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1262 krb5_set_fcache_version(krb5_context context
, int version
)
1264 context
->fcache_vno
= version
;
1269 * Get version of fcache that the library should use.
1271 * @param context Kerberos 5 context.
1272 * @param version version number.
1274 * @return Returns 0 to indicate success. Otherwise an kerberos et
1275 * error code is returned, see krb5_get_error_message().
1280 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1281 krb5_get_fcache_version(krb5_context context
, int *version
)
1283 *version
= context
->fcache_vno
;
1288 * Runtime check if the Kerberos library was complied with thread support.
1290 * @return TRUE if the library was compiled with thread support, FALSE if not.
1296 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1297 krb5_is_thread_safe(void)
1299 #ifdef ENABLE_PTHREAD_SUPPORT
1307 * Set if the library should use DNS to canonicalize hostnames.
1309 * @param context Kerberos 5 context.
1310 * @param flag if its dns canonicalizion is used or not.
1315 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1316 krb5_set_dns_canonicalize_hostname (krb5_context context
, krb5_boolean flag
)
1319 context
->flags
|= KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
;
1321 context
->flags
&= ~KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
;
1325 * Get if the library uses DNS to canonicalize hostnames.
1327 * @param context Kerberos 5 context.
1329 * @return return non zero if the library uses DNS to canonicalize hostnames.
1334 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1335 krb5_get_dns_canonicalize_hostname (krb5_context context
)
1337 return (context
->flags
& KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
) ? 1 : 0;
1341 * Get current offset in time to the KDC.
1343 * @param context Kerberos 5 context.
1344 * @param sec seconds part of offset.
1345 * @param usec micro seconds part of offset.
1347 * @return returns zero
1352 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1353 krb5_get_kdc_sec_offset (krb5_context context
, int32_t *sec
, int32_t *usec
)
1356 *sec
= context
->kdc_sec_offset
;
1358 *usec
= context
->kdc_usec_offset
;
1363 * Set current offset in time to the KDC.
1365 * @param context Kerberos 5 context.
1366 * @param sec seconds part of offset.
1367 * @param usec micro seconds part of offset.
1369 * @return returns zero
1374 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1375 krb5_set_kdc_sec_offset (krb5_context context
, int32_t sec
, int32_t usec
)
1377 context
->kdc_sec_offset
= sec
;
1379 context
->kdc_usec_offset
= usec
;
1384 * Get max time skew allowed.
1386 * @param context Kerberos 5 context.
1388 * @return timeskew in seconds.
1393 KRB5_LIB_FUNCTION
time_t KRB5_LIB_CALL
1394 krb5_get_max_time_skew (krb5_context context
)
1396 return context
->max_skew
;
1400 * Set max time skew allowed.
1402 * @param context Kerberos 5 context.
1403 * @param t timeskew in seconds.
1408 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1409 krb5_set_max_time_skew (krb5_context context
, time_t t
)
1411 context
->max_skew
= t
;
1415 * Init encryption types in len, val with etypes.
1417 * @param context Kerberos 5 context.
1418 * @param pdu_type type of pdu
1419 * @param len output length of val.
1420 * @param val output array of enctypes.
1421 * @param etypes etypes to set val and len to, if NULL, use default enctypes.
1423 * @return Returns 0 to indicate success. Otherwise an kerberos et
1424 * error code is returned, see krb5_get_error_message().
1429 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1430 _krb5_init_etype(krb5_context context
,
1434 const krb5_enctype
*etypes
)
1436 krb5_error_code ret
;
1439 ret
= krb5_get_default_in_tkt_etypes(context
, pdu_type
, val
);
1441 ret
= copy_enctypes(context
, etypes
, val
);
1447 while ((*val
)[*len
] != KRB5_ENCTYPE_NULL
)
1454 * Allow homedir accces
1457 static HEIMDAL_MUTEX homedir_mutex
= HEIMDAL_MUTEX_INITIALIZER
;
1458 static krb5_boolean allow_homedir
= TRUE
;
1461 _krb5_homedir_access(krb5_context context
)
1466 /* is never allowed for root */
1471 if (context
&& (context
->flags
& KRB5_CTX_F_HOMEDIR_ACCESS
) == 0)
1474 HEIMDAL_MUTEX_lock(&homedir_mutex
);
1475 allow
= allow_homedir
;
1476 HEIMDAL_MUTEX_unlock(&homedir_mutex
);
1481 * Enable and disable home directory access on either the global state
1482 * or the krb5_context state. By calling krb5_set_home_dir_access()
1483 * with context set to NULL, the global state is configured otherwise
1484 * the state for the krb5_context is modified.
1486 * For home directory access to be allowed, both the global state and
1487 * the krb5_context state have to be allowed.
1489 * Administrator (root user), never uses the home directory.
1491 * @param context a Kerberos 5 context or NULL
1492 * @param allow allow if TRUE home directory
1493 * @return the old value
1498 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1499 krb5_set_home_dir_access(krb5_context context
, krb5_boolean allow
)
1503 old
= (context
->flags
& KRB5_CTX_F_HOMEDIR_ACCESS
) ? TRUE
: FALSE
;
1505 context
->flags
|= KRB5_CTX_F_HOMEDIR_ACCESS
;
1507 context
->flags
&= ~KRB5_CTX_F_HOMEDIR_ACCESS
;
1509 HEIMDAL_MUTEX_lock(&homedir_mutex
);
1510 old
= allow_homedir
;
1511 allow_homedir
= allow
;
1512 HEIMDAL_MUTEX_unlock(&homedir_mutex
);