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"
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
= krb5_config_get_bool_default(context
, NULL
, FALSE
,
109 "allow_weak_crypto", NULL
);
111 krb5_enctype_enable(context
, ETYPE_DES_CBC_CRC
);
112 krb5_enctype_enable(context
, ETYPE_DES_CBC_MD4
);
113 krb5_enctype_enable(context
, ETYPE_DES_CBC_MD5
);
114 krb5_enctype_enable(context
, ETYPE_DES_CBC_NONE
);
115 krb5_enctype_enable(context
, ETYPE_DES_CFB64_NONE
);
116 krb5_enctype_enable(context
, ETYPE_DES_PCBC_NONE
);
119 ret
= set_etypes (context
, "default_etypes", &tmptypes
);
122 free(context
->etypes
);
123 context
->etypes
= tmptypes
;
125 ret
= set_etypes (context
, "default_etypes_des", &tmptypes
);
128 free(context
->etypes_des
);
129 context
->etypes_des
= tmptypes
;
131 /* default keytab name */
134 tmp
= getenv("KRB5_KTNAME");
136 context
->default_keytab
= tmp
;
138 INIT_FIELD(context
, string
, default_keytab
,
139 KEYTAB_DEFAULT
, "default_keytab_name");
141 INIT_FIELD(context
, string
, default_keytab_modify
,
142 NULL
, "default_keytab_modify_name");
144 INIT_FIELD(context
, string
, time_fmt
,
145 "%Y-%m-%dT%H:%M:%S", "time_format");
147 INIT_FIELD(context
, string
, date_fmt
,
148 "%Y-%m-%d", "date_format");
150 INIT_FIELD(context
, bool, log_utc
,
155 /* init dns-proxy slime */
156 tmp
= krb5_config_get_string(context
, NULL
, "libdefaults",
159 roken_gethostby_setup(context
->http_proxy
, tmp
);
160 krb5_free_host_realm (context
, context
->default_realms
);
161 context
->default_realms
= NULL
;
164 krb5_addresses addresses
;
167 krb5_set_extra_addresses(context
, NULL
);
168 adr
= krb5_config_get_strings(context
, NULL
,
172 memset(&addresses
, 0, sizeof(addresses
));
173 for(a
= adr
; a
&& *a
; a
++) {
174 ret
= krb5_parse_address(context
, *a
, &addresses
);
176 krb5_add_extra_addresses(context
, &addresses
);
177 krb5_free_addresses(context
, &addresses
);
180 krb5_config_free_strings(adr
);
182 krb5_set_ignore_addresses(context
, NULL
);
183 adr
= krb5_config_get_strings(context
, NULL
,
187 memset(&addresses
, 0, sizeof(addresses
));
188 for(a
= adr
; a
&& *a
; a
++) {
189 ret
= krb5_parse_address(context
, *a
, &addresses
);
191 krb5_add_ignore_addresses(context
, &addresses
);
192 krb5_free_addresses(context
, &addresses
);
195 krb5_config_free_strings(adr
);
198 INIT_FIELD(context
, bool, scan_interfaces
, TRUE
, "scan_interfaces");
199 INIT_FIELD(context
, int, fcache_vno
, 0, "fcache_version");
200 /* prefer dns_lookup_kdc over srv_lookup. */
201 INIT_FIELD(context
, bool, srv_lookup
, TRUE
, "srv_lookup");
202 INIT_FIELD(context
, bool, srv_lookup
, context
->srv_lookup
, "dns_lookup_kdc");
203 INIT_FIELD(context
, int, large_msg_size
, 1400, "large_message_size");
204 INIT_FLAG(context
, flags
, KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
, TRUE
, "dns_canonicalize_hostname");
205 INIT_FLAG(context
, flags
, KRB5_CTX_F_CHECK_PAC
, TRUE
, "check_pac");
206 context
->default_cc_name
= NULL
;
207 context
->default_cc_name_set
= 0;
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
);
218 tmp
= krb5_config_get_string(context
, NULL
, "libdefaults",
219 "check-rd-req-server", NULL
);
220 if (tmp
== NULL
&& !issuid())
221 tmp
= getenv("KRB5_CHECK_RD_REQ_SERVER");
223 if (strcasecmp(tmp
, "ignore") == 0)
224 context
->flags
|= KRB5_CTX_F_RD_REQ_IGNORE
;
230 static krb5_error_code
231 cc_ops_register(krb5_context context
)
233 context
->cc_ops
= NULL
;
234 context
->num_cc_ops
= 0;
236 #ifndef KCM_IS_API_CACHE
237 krb5_cc_register(context
, &krb5_acc_ops
, TRUE
);
239 krb5_cc_register(context
, &krb5_fcc_ops
, TRUE
);
240 krb5_cc_register(context
, &krb5_mcc_ops
, TRUE
);
242 krb5_cc_register(context
, &krb5_scc_ops
, TRUE
);
245 #ifdef KCM_IS_API_CACHE
246 krb5_cc_register(context
, &krb5_akcm_ops
, TRUE
);
248 krb5_cc_register(context
, &krb5_kcm_ops
, TRUE
);
250 _krb5_load_ccache_plugins(context
);
254 static krb5_error_code
255 cc_ops_copy(krb5_context context
, const krb5_context src_context
)
257 const krb5_cc_ops
**cc_ops
;
259 context
->cc_ops
= NULL
;
260 context
->num_cc_ops
= 0;
262 if (src_context
->num_cc_ops
== 0)
265 cc_ops
= malloc(sizeof(cc_ops
[0]) * src_context
->num_cc_ops
);
266 if (cc_ops
== NULL
) {
267 krb5_set_error_message(context
, KRB5_CC_NOMEM
,
268 N_("malloc: out of memory", ""));
269 return KRB5_CC_NOMEM
;
272 memcpy(rk_UNCONST(cc_ops
), src_context
->cc_ops
,
273 sizeof(cc_ops
[0]) * src_context
->num_cc_ops
);
274 context
->cc_ops
= cc_ops
;
275 context
->num_cc_ops
= src_context
->num_cc_ops
;
280 static krb5_error_code
281 kt_ops_register(krb5_context context
)
283 context
->num_kt_types
= 0;
284 context
->kt_types
= NULL
;
286 krb5_kt_register (context
, &krb5_fkt_ops
);
287 krb5_kt_register (context
, &krb5_wrfkt_ops
);
288 krb5_kt_register (context
, &krb5_javakt_ops
);
289 krb5_kt_register (context
, &krb5_mkt_ops
);
290 #ifndef HEIMDAL_SMALLER
291 krb5_kt_register (context
, &krb5_akf_ops
);
293 krb5_kt_register (context
, &krb5_any_ops
);
297 static krb5_error_code
298 kt_ops_copy(krb5_context context
, const krb5_context src_context
)
300 context
->num_kt_types
= 0;
301 context
->kt_types
= NULL
;
303 if (src_context
->num_kt_types
== 0)
306 context
->kt_types
= malloc(sizeof(context
->kt_types
[0]) * src_context
->num_kt_types
);
307 if (context
->kt_types
== NULL
) {
308 krb5_set_error_message(context
, ENOMEM
,
309 N_("malloc: out of memory", ""));
313 context
->num_kt_types
= src_context
->num_kt_types
;
314 memcpy(context
->kt_types
, src_context
->kt_types
,
315 sizeof(context
->kt_types
[0]) * src_context
->num_kt_types
);
320 static const char *sysplugin_dirs
[] = {
321 LIBDIR
"/plugin/krb5",
323 "/Library/KerberosPlugins/KerberosFrameworkPlugins",
324 "/System/Library/KerberosPlugins/KerberosFrameworkPlugins",
330 init_context_once(void *ctx
)
332 krb5_context context
= ctx
;
334 _krb5_load_plugins(context
, "krb5", sysplugin_dirs
);
336 bindtextdomain(HEIMDAL_TEXTDOMAIN
, HEIMDAL_LOCALEDIR
);
341 * Initializes the context structure and reads the configuration file
342 * /etc/krb5.conf. The structure should be freed by calling
343 * krb5_free_context() when it is no longer being used.
345 * @param context pointer to returned context
347 * @return Returns 0 to indicate success. Otherwise an errno code is
348 * returned. Failure means either that something bad happened during
349 * initialization (typically ENOMEM) or that Kerberos should not be
355 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
356 krb5_init_context(krb5_context
*context
)
358 static heim_base_once_t init_context
= HEIM_BASE_ONCE_INIT
;
365 p
= calloc(1, sizeof(*p
));
369 p
->mutex
= malloc(sizeof(HEIMDAL_MUTEX
));
370 if (p
->mutex
== NULL
) {
374 HEIMDAL_MUTEX_init(p
->mutex
);
376 p
->flags
|= KRB5_CTX_F_HOMEDIR_ACCESS
;
378 ret
= krb5_get_default_config_files(&files
);
381 ret
= krb5_set_config_files(p
, files
);
382 krb5_free_config_files(files
);
386 /* init error tables */
392 ret
= hx509_context_init(&p
->hx509ctx
);
397 p
->flags
|= KRB5_CTX_F_SOCKETS_INITIALIZED
;
401 krb5_free_context(p
);
404 heim_base_once_f(&init_context
, p
, init_context_once
);
410 #ifndef HEIMDAL_SMALLER
412 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
413 krb5_get_permitted_enctypes(krb5_context context
,
414 krb5_enctype
**etypes
)
416 return krb5_get_default_in_tkt_etypes(context
, etypes
);
423 static krb5_error_code
424 copy_etypes (krb5_context context
,
425 krb5_enctype
*enctypes
,
426 krb5_enctype
**ret_enctypes
)
430 for (i
= 0; enctypes
[i
]; i
++)
434 *ret_enctypes
= malloc(sizeof(ret_enctypes
[0]) * i
);
435 if (*ret_enctypes
== NULL
) {
436 krb5_set_error_message(context
, ENOMEM
,
437 N_("malloc: out of memory", ""));
440 memcpy(*ret_enctypes
, enctypes
, sizeof(ret_enctypes
[0]) * i
);
445 * Make a copy for the Kerberos 5 context, the new krb5_context shoud
446 * be freed with krb5_free_context().
448 * @param context the Kerberos context to copy
449 * @param out the copy of the Kerberos, set to NULL error.
451 * @return Returns 0 to indicate success. Otherwise an kerberos et
452 * error code is returned, see krb5_get_error_message().
457 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
458 krb5_copy_context(krb5_context context
, krb5_context
*out
)
465 p
= calloc(1, sizeof(*p
));
467 krb5_set_error_message(context
, ENOMEM
, N_("malloc: out of memory", ""));
471 p
->mutex
= malloc(sizeof(HEIMDAL_MUTEX
));
472 if (p
->mutex
== NULL
) {
473 krb5_set_error_message(context
, ENOMEM
, N_("malloc: out of memory", ""));
477 HEIMDAL_MUTEX_init(p
->mutex
);
480 if (context
->default_cc_name
)
481 p
->default_cc_name
= strdup(context
->default_cc_name
);
482 if (context
->default_cc_name_env
)
483 p
->default_cc_name_env
= strdup(context
->default_cc_name_env
);
485 if (context
->etypes
) {
486 ret
= copy_etypes(context
, context
->etypes
, &p
->etypes
);
490 if (context
->etypes_des
) {
491 ret
= copy_etypes(context
, context
->etypes_des
, &p
->etypes_des
);
496 if (context
->default_realms
) {
497 ret
= krb5_copy_host_realm(context
,
498 context
->default_realms
, &p
->default_realms
);
503 ret
= _krb5_config_copy(context
, context
->cf
, &p
->cf
);
507 /* XXX should copy */
510 cc_ops_copy(p
, context
);
511 kt_ops_copy(p
, context
);
514 if(context
->warn_dest
!= NULL
)
516 if(context
->debug_dest
!= NULL
)
520 ret
= krb5_set_extra_addresses(p
, context
->extra_addresses
);
523 ret
= krb5_set_extra_addresses(p
, context
->ignore_addresses
);
527 ret
= _krb5_copy_send_to_kdc_func(p
, context
);
536 krb5_free_context(p
);
543 * Frees the krb5_context allocated by krb5_init_context().
545 * @param context context to be freed.
550 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
551 krb5_free_context(krb5_context context
)
553 if (context
->default_cc_name
)
554 free(context
->default_cc_name
);
555 if (context
->default_cc_name_env
)
556 free(context
->default_cc_name_env
);
557 free(context
->etypes
);
558 free(context
->etypes_des
);
559 krb5_free_host_realm (context
, context
->default_realms
);
560 krb5_config_file_free (context
, context
->cf
);
561 free_error_table (context
->et_list
);
562 free(rk_UNCONST(context
->cc_ops
));
563 free(context
->kt_types
);
564 krb5_clear_error_message(context
);
565 if(context
->warn_dest
!= NULL
)
566 krb5_closelog(context
, context
->warn_dest
);
567 if(context
->debug_dest
!= NULL
)
568 krb5_closelog(context
, context
->debug_dest
);
569 krb5_set_extra_addresses(context
, NULL
);
570 krb5_set_ignore_addresses(context
, NULL
);
571 krb5_set_send_to_kdc_func(context
, NULL
, NULL
);
574 if (context
->hx509ctx
)
575 hx509_context_free(&context
->hx509ctx
);
578 HEIMDAL_MUTEX_destroy(context
->mutex
);
579 free(context
->mutex
);
580 if (context
->flags
& KRB5_CTX_F_SOCKETS_INITIALIZED
) {
584 memset(context
, 0, sizeof(*context
));
589 * Reinit the context from a new set of filenames.
591 * @param context context to add configuration too.
592 * @param filenames array of filenames, end of list is indicated with a NULL filename.
594 * @return Returns 0 to indicate success. Otherwise an kerberos et
595 * error code is returned, see krb5_get_error_message().
600 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
601 krb5_set_config_files(krb5_context context
, char **filenames
)
604 krb5_config_binding
*tmp
= NULL
;
605 while(filenames
!= NULL
&& *filenames
!= NULL
&& **filenames
!= '\0') {
606 ret
= krb5_config_parse_file_multi(context
, *filenames
, &tmp
);
607 if(ret
!= 0 && ret
!= ENOENT
&& ret
!= EACCES
&& ret
!= EPERM
) {
608 krb5_config_file_free(context
, tmp
);
614 /* with this enabled and if there are no config files, Kerberos is
615 considererd disabled */
621 _krb5_load_config_from_registry(context
, &tmp
);
624 krb5_config_file_free(context
, context
->cf
);
626 ret
= init_context_from_config_file(context
);
630 static krb5_error_code
631 add_file(char ***pfilenames
, int *len
, char *file
)
633 char **pp
= *pfilenames
;
636 for(i
= 0; i
< *len
; i
++) {
637 if(strcmp(pp
[i
], file
) == 0) {
643 pp
= realloc(*pfilenames
, (*len
+ 2) * sizeof(*pp
));
657 * `pq' isn't free, it's up the the caller
660 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
661 krb5_prepend_config_files(const char *filelist
, char **pq
, char ***ret_pp
)
676 l
= strsep_copy(&q
, PATH_SEP
, NULL
, 0);
681 krb5_free_config_files(pp
);
684 (void)strsep_copy(&p
, PATH_SEP
, fn
, l
+ 1);
685 ret
= add_file(&pp
, &len
, fn
);
687 krb5_free_config_files(pp
);
695 for (i
= 0; pq
[i
] != NULL
; i
++) {
698 krb5_free_config_files(pp
);
701 ret
= add_file(&pp
, &len
, fn
);
703 krb5_free_config_files(pp
);
714 * Prepend the filename to the global configuration list.
716 * @param filelist a filename to add to the default list of filename
717 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
719 * @return Returns 0 to indicate success. Otherwise an kerberos et
720 * error code is returned, see krb5_get_error_message().
725 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
726 krb5_prepend_config_files_default(const char *filelist
, char ***pfilenames
)
729 char **defpp
, **pp
= NULL
;
731 ret
= krb5_get_default_config_files(&defpp
);
735 ret
= krb5_prepend_config_files(filelist
, defpp
, &pp
);
736 krb5_free_config_files(defpp
);
747 * Checks the registry for configuration file location
749 * Kerberos for Windows and other legacy Kerberos applications expect
750 * to find the configuration file location in the
751 * SOFTWARE\MIT\Kerberos registry key under the value "config".
754 _krb5_get_default_config_config_files_from_registry()
756 static const char * KeyName
= "Software\\MIT\\Kerberos";
757 char *config_file
= NULL
;
761 rcode
= RegOpenKeyEx(HKEY_CURRENT_USER
, KeyName
, 0, KEY_READ
, &key
);
762 if (rcode
== ERROR_SUCCESS
) {
763 config_file
= _krb5_parse_reg_value_as_multi_string(NULL
, key
, "config",
764 REG_NONE
, 0, PATH_SEP
);
771 rcode
= RegOpenKeyEx(HKEY_LOCAL_MACHINE
, KeyName
, 0, KEY_READ
, &key
);
772 if (rcode
== ERROR_SUCCESS
) {
773 config_file
= _krb5_parse_reg_value_as_multi_string(NULL
, key
, "config",
774 REG_NONE
, 0, PATH_SEP
);
784 * Get the global configuration list.
786 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
788 * @return Returns 0 to indicate success. Otherwise an kerberos et
789 * error code is returned, see krb5_get_error_message().
794 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
795 krb5_get_default_config_files(char ***pfilenames
)
797 const char *files
= NULL
;
799 if (pfilenames
== NULL
)
802 files
= getenv("KRB5_CONFIG");
807 reg_files
= _krb5_get_default_config_config_files_from_registry();
808 if (reg_files
!= NULL
) {
809 krb5_error_code code
;
811 code
= krb5_prepend_config_files(reg_files
, NULL
, pfilenames
);
820 files
= krb5_config_file
;
822 return krb5_prepend_config_files(files
, NULL
, pfilenames
);
826 * Free a list of configuration files.
828 * @param filenames list, terminated with a NULL pointer, to be
829 * freed. NULL is an valid argument.
831 * @return Returns 0 to indicate success. Otherwise an kerberos et
832 * error code is returned, see krb5_get_error_message().
837 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
838 krb5_free_config_files(char **filenames
)
841 for(p
= filenames
; p
&& *p
!= NULL
; p
++)
847 * Returns the list of Kerberos encryption types sorted in order of
848 * most preferred to least preferred encryption type. Note that some
849 * encryption types might be disabled, so you need to check with
850 * krb5_enctype_valid() before using the encryption type.
852 * @return list of enctypes, terminated with ETYPE_NULL. Its a static
853 * array completed into the Kerberos library so the content doesn't
859 KRB5_LIB_FUNCTION
const krb5_enctype
* KRB5_LIB_CALL
860 krb5_kerberos_enctypes(krb5_context context
)
862 static const krb5_enctype p
[] = {
863 ETYPE_AES256_CTS_HMAC_SHA1_96
,
864 ETYPE_AES128_CTS_HMAC_SHA1_96
,
867 ETYPE_ARCFOUR_HMAC_MD5
,
877 * set `etype' to a malloced list of the default enctypes
880 static krb5_error_code
881 default_etypes(krb5_context context
, krb5_enctype
**etype
)
883 const krb5_enctype
*p
;
884 krb5_enctype
*e
= NULL
, *ep
;
887 p
= krb5_kerberos_enctypes(context
);
889 for (i
= 0; p
[i
] != ETYPE_NULL
; i
++) {
890 if (krb5_enctype_valid(context
, p
[i
]) != 0)
892 ep
= realloc(e
, (n
+ 2) * sizeof(*e
));
895 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
900 e
[n
+ 1] = ETYPE_NULL
;
908 * Set the default encryption types that will be use in communcation
909 * with the KDC, clients and servers.
911 * @param context Kerberos 5 context.
912 * @param etypes Encryption types, array terminated with ETYPE_NULL (0).
914 * @return Returns 0 to indicate success. Otherwise an kerberos et
915 * error code is returned, see krb5_get_error_message().
920 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
921 krb5_set_default_in_tkt_etypes(krb5_context context
,
922 const krb5_enctype
*etypes
)
925 krb5_enctype
*p
= NULL
;
929 for (n
= 0; etypes
[n
]; n
++)
934 krb5_set_error_message (context
, ENOMEM
,
935 N_("malloc: out of memory", ""));
938 for (n
= 0, m
= 0; etypes
[n
]; n
++) {
939 ret
= krb5_enctype_valid(context
, etypes
[n
]);
947 krb5_set_error_message (context
, KRB5_PROG_ETYPE_NOSUPP
,
948 N_("no valid enctype set", ""));
949 return KRB5_PROG_ETYPE_NOSUPP
;
953 free(context
->etypes
);
959 * Get the default encryption types that will be use in communcation
960 * with the KDC, clients and servers.
962 * @param context Kerberos 5 context.
963 * @param etypes Encryption types, array terminated with
964 * ETYPE_NULL(0), caller should free array with krb5_xfree():
966 * @return Returns 0 to indicate success. Otherwise an kerberos et
967 * error code is returned, see krb5_get_error_message().
972 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
973 krb5_get_default_in_tkt_etypes(krb5_context context
,
974 krb5_enctype
**etypes
)
980 if(context
->etypes
) {
981 for(i
= 0; context
->etypes
[i
]; i
++);
985 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
988 memmove(p
, context
->etypes
, i
* sizeof(krb5_enctype
));
990 ret
= default_etypes(context
, &p
);
999 * Init the built-in ets in the Kerberos library.
1001 * @param context kerberos context to add the ets too
1006 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1007 krb5_init_ets(krb5_context context
)
1009 if(context
->et_list
== NULL
){
1010 krb5_add_et_list(context
, initialize_krb5_error_table_r
);
1011 krb5_add_et_list(context
, initialize_asn1_error_table_r
);
1012 krb5_add_et_list(context
, initialize_heim_error_table_r
);
1014 krb5_add_et_list(context
, initialize_k524_error_table_r
);
1016 #ifdef COM_ERR_BINDDOMAIN_krb5
1017 bindtextdomain(COM_ERR_BINDDOMAIN_krb5
, HEIMDAL_LOCALEDIR
);
1018 bindtextdomain(COM_ERR_BINDDOMAIN_asn1
, HEIMDAL_LOCALEDIR
);
1019 bindtextdomain(COM_ERR_BINDDOMAIN_heim
, HEIMDAL_LOCALEDIR
);
1020 bindtextdomain(COM_ERR_BINDDOMAIN_k524
, HEIMDAL_LOCALEDIR
);
1024 krb5_add_et_list(context
, initialize_hx_error_table_r
);
1025 #ifdef COM_ERR_BINDDOMAIN_hx
1026 bindtextdomain(COM_ERR_BINDDOMAIN_hx
, HEIMDAL_LOCALEDIR
);
1033 * Make the kerberos library default to the admin KDC.
1035 * @param context Kerberos 5 context.
1036 * @param flag boolean flag to select if the use the admin KDC or not.
1041 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1042 krb5_set_use_admin_kdc (krb5_context context
, krb5_boolean flag
)
1044 context
->use_admin_kdc
= flag
;
1048 * Make the kerberos library default to the admin KDC.
1050 * @param context Kerberos 5 context.
1052 * @return boolean flag to telling the context will use admin KDC as the default KDC.
1057 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1058 krb5_get_use_admin_kdc (krb5_context context
)
1060 return context
->use_admin_kdc
;
1064 * Add extra address to the address list that the library will add to
1065 * the client's address list when communicating with the KDC.
1067 * @param context Kerberos 5 context.
1068 * @param addresses addreses to add
1070 * @return Returns 0 to indicate success. Otherwise an kerberos et
1071 * error code is returned, see krb5_get_error_message().
1076 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1077 krb5_add_extra_addresses(krb5_context context
, krb5_addresses
*addresses
)
1080 if(context
->extra_addresses
)
1081 return krb5_append_addresses(context
,
1082 context
->extra_addresses
, addresses
);
1084 return krb5_set_extra_addresses(context
, addresses
);
1088 * Set extra address to the address list that the library will add to
1089 * the client's address list when communicating with the KDC.
1091 * @param context Kerberos 5 context.
1092 * @param addresses addreses to set
1094 * @return Returns 0 to indicate success. Otherwise an kerberos et
1095 * error code is returned, see krb5_get_error_message().
1100 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1101 krb5_set_extra_addresses(krb5_context context
, const krb5_addresses
*addresses
)
1103 if(context
->extra_addresses
)
1104 krb5_free_addresses(context
, context
->extra_addresses
);
1106 if(addresses
== NULL
) {
1107 if(context
->extra_addresses
!= NULL
) {
1108 free(context
->extra_addresses
);
1109 context
->extra_addresses
= NULL
;
1113 if(context
->extra_addresses
== NULL
) {
1114 context
->extra_addresses
= malloc(sizeof(*context
->extra_addresses
));
1115 if(context
->extra_addresses
== NULL
) {
1116 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
1120 return krb5_copy_addresses(context
, addresses
, context
->extra_addresses
);
1124 * Get extra address to the address list that the library will add to
1125 * the client's address list when communicating with the KDC.
1127 * @param context Kerberos 5 context.
1128 * @param addresses addreses to set
1130 * @return Returns 0 to indicate success. Otherwise an kerberos et
1131 * error code is returned, see krb5_get_error_message().
1136 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1137 krb5_get_extra_addresses(krb5_context context
, krb5_addresses
*addresses
)
1139 if(context
->extra_addresses
== NULL
) {
1140 memset(addresses
, 0, sizeof(*addresses
));
1143 return krb5_copy_addresses(context
,context
->extra_addresses
, addresses
);
1147 * Add extra addresses to ignore when fetching addresses from the
1148 * underlaying operating system.
1150 * @param context Kerberos 5 context.
1151 * @param addresses addreses to ignore
1153 * @return Returns 0 to indicate success. Otherwise an kerberos et
1154 * error code is returned, see krb5_get_error_message().
1159 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1160 krb5_add_ignore_addresses(krb5_context context
, krb5_addresses
*addresses
)
1163 if(context
->ignore_addresses
)
1164 return krb5_append_addresses(context
,
1165 context
->ignore_addresses
, addresses
);
1167 return krb5_set_ignore_addresses(context
, addresses
);
1171 * Set extra addresses to ignore when fetching addresses from the
1172 * underlaying operating system.
1174 * @param context Kerberos 5 context.
1175 * @param addresses addreses to ignore
1177 * @return Returns 0 to indicate success. Otherwise an kerberos et
1178 * error code is returned, see krb5_get_error_message().
1183 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1184 krb5_set_ignore_addresses(krb5_context context
, const krb5_addresses
*addresses
)
1186 if(context
->ignore_addresses
)
1187 krb5_free_addresses(context
, context
->ignore_addresses
);
1188 if(addresses
== NULL
) {
1189 if(context
->ignore_addresses
!= NULL
) {
1190 free(context
->ignore_addresses
);
1191 context
->ignore_addresses
= NULL
;
1195 if(context
->ignore_addresses
== NULL
) {
1196 context
->ignore_addresses
= malloc(sizeof(*context
->ignore_addresses
));
1197 if(context
->ignore_addresses
== NULL
) {
1198 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
1202 return krb5_copy_addresses(context
, addresses
, context
->ignore_addresses
);
1206 * Get extra addresses to ignore when fetching addresses from the
1207 * underlaying operating system.
1209 * @param context Kerberos 5 context.
1210 * @param addresses list addreses ignored
1212 * @return Returns 0 to indicate success. Otherwise an kerberos et
1213 * error code is returned, see krb5_get_error_message().
1218 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1219 krb5_get_ignore_addresses(krb5_context context
, krb5_addresses
*addresses
)
1221 if(context
->ignore_addresses
== NULL
) {
1222 memset(addresses
, 0, sizeof(*addresses
));
1225 return krb5_copy_addresses(context
, context
->ignore_addresses
, addresses
);
1229 * Set version of fcache that the library should use.
1231 * @param context Kerberos 5 context.
1232 * @param version version number.
1234 * @return Returns 0 to indicate success. Otherwise an kerberos et
1235 * error code is returned, see krb5_get_error_message().
1240 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1241 krb5_set_fcache_version(krb5_context context
, int version
)
1243 context
->fcache_vno
= version
;
1248 * Get version of fcache that the library should use.
1250 * @param context Kerberos 5 context.
1251 * @param version version number.
1253 * @return Returns 0 to indicate success. Otherwise an kerberos et
1254 * error code is returned, see krb5_get_error_message().
1259 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1260 krb5_get_fcache_version(krb5_context context
, int *version
)
1262 *version
= context
->fcache_vno
;
1267 * Runtime check if the Kerberos library was complied with thread support.
1269 * @return TRUE if the library was compiled with thread support, FALSE if not.
1275 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1276 krb5_is_thread_safe(void)
1278 #ifdef ENABLE_PTHREAD_SUPPORT
1286 * Set if the library should use DNS to canonicalize hostnames.
1288 * @param context Kerberos 5 context.
1289 * @param flag if its dns canonicalizion is used or not.
1294 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1295 krb5_set_dns_canonicalize_hostname (krb5_context context
, krb5_boolean flag
)
1298 context
->flags
|= KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
;
1300 context
->flags
&= ~KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
;
1304 * Get if the library uses DNS to canonicalize hostnames.
1306 * @param context Kerberos 5 context.
1308 * @return return non zero if the library uses DNS to canonicalize hostnames.
1313 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1314 krb5_get_dns_canonicalize_hostname (krb5_context context
)
1316 return (context
->flags
& KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
) ? 1 : 0;
1320 * Get current offset in time to the KDC.
1322 * @param context Kerberos 5 context.
1323 * @param sec seconds part of offset.
1324 * @param usec micro seconds part of offset.
1326 * @return returns zero
1331 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1332 krb5_get_kdc_sec_offset (krb5_context context
, int32_t *sec
, int32_t *usec
)
1335 *sec
= context
->kdc_sec_offset
;
1337 *usec
= context
->kdc_usec_offset
;
1342 * Set current offset in time to the KDC.
1344 * @param context Kerberos 5 context.
1345 * @param sec seconds part of offset.
1346 * @param usec micro seconds part of offset.
1348 * @return returns zero
1353 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1354 krb5_set_kdc_sec_offset (krb5_context context
, int32_t sec
, int32_t usec
)
1356 context
->kdc_sec_offset
= sec
;
1358 context
->kdc_usec_offset
= usec
;
1363 * Get max time skew allowed.
1365 * @param context Kerberos 5 context.
1367 * @return timeskew in seconds.
1372 KRB5_LIB_FUNCTION
time_t KRB5_LIB_CALL
1373 krb5_get_max_time_skew (krb5_context context
)
1375 return context
->max_skew
;
1379 * Set max time skew allowed.
1381 * @param context Kerberos 5 context.
1382 * @param t timeskew in seconds.
1387 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1388 krb5_set_max_time_skew (krb5_context context
, time_t t
)
1390 context
->max_skew
= t
;
1394 * Init encryption types in len, val with etypes.
1396 * @param context Kerberos 5 context.
1397 * @param len output length of val.
1398 * @param val output array of enctypes.
1399 * @param etypes etypes to set val and len to, if NULL, use default enctypes.
1401 * @return Returns 0 to indicate success. Otherwise an kerberos et
1402 * error code is returned, see krb5_get_error_message().
1407 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1408 krb5_init_etype (krb5_context context
,
1411 const krb5_enctype
*etypes
)
1414 krb5_error_code ret
;
1415 krb5_enctype
*tmp
= NULL
;
1418 if (etypes
== NULL
) {
1419 ret
= krb5_get_default_in_tkt_etypes(context
, &tmp
);
1425 for (i
= 0; etypes
[i
]; ++i
)
1428 *val
= malloc(i
* sizeof(**val
));
1429 if (i
!= 0 && *val
== NULL
) {
1431 krb5_set_error_message(context
, ret
, N_("malloc: out of memory", ""));
1444 * Allow homedir accces
1447 static HEIMDAL_MUTEX homedir_mutex
= HEIMDAL_MUTEX_INITIALIZER
;
1448 static krb5_boolean allow_homedir
= TRUE
;
1451 _krb5_homedir_access(krb5_context context
)
1456 /* is never allowed for root */
1461 if (context
&& (context
->flags
& KRB5_CTX_F_HOMEDIR_ACCESS
) == 0)
1464 HEIMDAL_MUTEX_lock(&homedir_mutex
);
1465 allow
= allow_homedir
;
1466 HEIMDAL_MUTEX_unlock(&homedir_mutex
);
1471 * Enable and disable home directory access on either the global state
1472 * or the krb5_context state. By calling krb5_set_home_dir_access()
1473 * with context set to NULL, the global state is configured otherwise
1474 * the state for the krb5_context is modified.
1476 * For home directory access to be allowed, both the global state and
1477 * the krb5_context state have to be allowed.
1479 * Administrator (root user), never uses the home directory.
1481 * @param context a Kerberos 5 context or NULL
1482 * @param allow allow if TRUE home directory
1483 * @return the old value
1488 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1489 krb5_set_home_dir_access(krb5_context context
, krb5_boolean allow
)
1493 old
= (context
->flags
& KRB5_CTX_F_HOMEDIR_ACCESS
) ? TRUE
: FALSE
;
1495 context
->flags
|= KRB5_CTX_F_HOMEDIR_ACCESS
;
1497 context
->flags
&= ~KRB5_CTX_F_HOMEDIR_ACCESS
;
1499 HEIMDAL_MUTEX_lock(&homedir_mutex
);
1500 old
= allow_homedir
;
1501 allow_homedir
= allow
;
1502 HEIMDAL_MUTEX_unlock(&homedir_mutex
);