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 return krb5_enomem(context
);
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
, 30, "kdc_timeout");
103 INIT_FIELD(context
, time
, host_timeout
, 3, "host_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_FIELD(context
, int, max_msg_size
, 1000 * 1024, "maximum_message_size");
224 INIT_FLAG(context
, flags
, KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
, TRUE
, "dns_canonicalize_hostname");
225 INIT_FLAG(context
, flags
, KRB5_CTX_F_CHECK_PAC
, TRUE
, "check_pac");
227 if (context
->default_cc_name
)
228 free(context
->default_cc_name
);
229 context
->default_cc_name
= NULL
;
230 context
->default_cc_name_set
= 0;
232 s
= krb5_config_get_strings(context
, NULL
, "logging", "krb5", NULL
);
236 if (context
->debug_dest
)
237 krb5_closelog(context
, context
->debug_dest
);
239 krb5_initlog(context
, "libkrb5", &context
->debug_dest
);
241 krb5_addlog_dest(context
, context
->debug_dest
, *p
);
242 krb5_config_free_strings(s
);
245 tmp
= krb5_config_get_string(context
, NULL
, "libdefaults",
246 "check-rd-req-server", NULL
);
247 if (tmp
== NULL
&& !issuid())
248 tmp
= getenv("KRB5_CHECK_RD_REQ_SERVER");
250 if (strcasecmp(tmp
, "ignore") == 0)
251 context
->flags
|= KRB5_CTX_F_RD_REQ_IGNORE
;
257 static krb5_error_code
258 cc_ops_register(krb5_context context
)
260 context
->cc_ops
= NULL
;
261 context
->num_cc_ops
= 0;
263 #ifndef KCM_IS_API_CACHE
264 krb5_cc_register(context
, &krb5_acc_ops
, TRUE
);
266 krb5_cc_register(context
, &krb5_fcc_ops
, TRUE
);
267 krb5_cc_register(context
, &krb5_dcc_ops
, TRUE
);
268 krb5_cc_register(context
, &krb5_mcc_ops
, TRUE
);
270 krb5_cc_register(context
, &krb5_scc_ops
, TRUE
);
273 #ifdef KCM_IS_API_CACHE
274 krb5_cc_register(context
, &krb5_akcm_ops
, TRUE
);
276 krb5_cc_register(context
, &krb5_kcm_ops
, TRUE
);
278 _krb5_load_ccache_plugins(context
);
282 static krb5_error_code
283 cc_ops_copy(krb5_context context
, const krb5_context src_context
)
285 const krb5_cc_ops
**cc_ops
;
287 context
->cc_ops
= NULL
;
288 context
->num_cc_ops
= 0;
290 if (src_context
->num_cc_ops
== 0)
293 cc_ops
= malloc(sizeof(cc_ops
[0]) * src_context
->num_cc_ops
);
294 if (cc_ops
== NULL
) {
295 krb5_set_error_message(context
, KRB5_CC_NOMEM
,
296 N_("malloc: out of memory", ""));
297 return KRB5_CC_NOMEM
;
300 memcpy(rk_UNCONST(cc_ops
), src_context
->cc_ops
,
301 sizeof(cc_ops
[0]) * src_context
->num_cc_ops
);
302 context
->cc_ops
= cc_ops
;
303 context
->num_cc_ops
= src_context
->num_cc_ops
;
308 static krb5_error_code
309 kt_ops_register(krb5_context context
)
311 context
->num_kt_types
= 0;
312 context
->kt_types
= NULL
;
314 krb5_kt_register (context
, &krb5_fkt_ops
);
315 krb5_kt_register (context
, &krb5_wrfkt_ops
);
316 krb5_kt_register (context
, &krb5_javakt_ops
);
317 krb5_kt_register (context
, &krb5_mkt_ops
);
318 #ifndef HEIMDAL_SMALLER
319 krb5_kt_register (context
, &krb5_akf_ops
);
321 krb5_kt_register (context
, &krb5_any_ops
);
325 static krb5_error_code
326 kt_ops_copy(krb5_context context
, const krb5_context src_context
)
328 context
->num_kt_types
= 0;
329 context
->kt_types
= NULL
;
331 if (src_context
->num_kt_types
== 0)
334 context
->kt_types
= malloc(sizeof(context
->kt_types
[0]) * src_context
->num_kt_types
);
335 if (context
->kt_types
== NULL
)
336 return krb5_enomem(context
);
338 context
->num_kt_types
= src_context
->num_kt_types
;
339 memcpy(context
->kt_types
, src_context
->kt_types
,
340 sizeof(context
->kt_types
[0]) * src_context
->num_kt_types
);
345 static const char *sysplugin_dirs
[] = {
346 LIBDIR
"/plugin/krb5",
348 "/Library/KerberosPlugins/KerberosFrameworkPlugins",
349 "/System/Library/KerberosPlugins/KerberosFrameworkPlugins",
355 init_context_once(void *ctx
)
357 krb5_context context
= ctx
;
360 dirs
= krb5_config_get_strings(context
, NULL
, "libdefaults",
363 dirs
= rk_UNCONST(sysplugin_dirs
);
365 _krb5_load_plugins(context
, "krb5", (const char **)dirs
);
367 if (dirs
!= rk_UNCONST(sysplugin_dirs
))
368 krb5_config_free_strings(dirs
);
370 bindtextdomain(HEIMDAL_TEXTDOMAIN
, HEIMDAL_LOCALEDIR
);
375 * Initializes the context structure and reads the configuration file
376 * /etc/krb5.conf. The structure should be freed by calling
377 * krb5_free_context() when it is no longer being used.
379 * @param context pointer to returned context
381 * @return Returns 0 to indicate success. Otherwise an errno code is
382 * returned. Failure means either that something bad happened during
383 * initialization (typically ENOMEM) or that Kerberos should not be
389 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
390 krb5_init_context(krb5_context
*context
)
392 static heim_base_once_t init_context
= HEIM_BASE_ONCE_INIT
;
399 p
= calloc(1, sizeof(*p
));
403 p
->mutex
= malloc(sizeof(HEIMDAL_MUTEX
));
404 if (p
->mutex
== NULL
) {
408 HEIMDAL_MUTEX_init(p
->mutex
);
410 p
->flags
|= KRB5_CTX_F_HOMEDIR_ACCESS
;
412 ret
= krb5_get_default_config_files(&files
);
415 ret
= krb5_set_config_files(p
, files
);
416 krb5_free_config_files(files
);
420 /* done enough to load plugins */
421 heim_base_once_f(&init_context
, p
, init_context_once
);
423 /* init error tables */
429 ret
= hx509_context_init(&p
->hx509ctx
);
434 p
->flags
|= KRB5_CTX_F_SOCKETS_INITIALIZED
;
438 krb5_free_context(p
);
445 #ifndef HEIMDAL_SMALLER
447 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
448 krb5_get_permitted_enctypes(krb5_context context
,
449 krb5_enctype
**etypes
)
451 return krb5_get_default_in_tkt_etypes(context
, KRB5_PDU_NONE
, etypes
);
458 static krb5_error_code
459 copy_etypes (krb5_context context
,
460 krb5_enctype
*enctypes
,
461 krb5_enctype
**ret_enctypes
)
465 for (i
= 0; enctypes
[i
]; i
++)
469 *ret_enctypes
= malloc(sizeof(ret_enctypes
[0]) * i
);
470 if (*ret_enctypes
== NULL
)
471 return krb5_enomem(context
);
472 memcpy(*ret_enctypes
, enctypes
, sizeof(ret_enctypes
[0]) * i
);
477 * Make a copy for the Kerberos 5 context, the new krb5_context shoud
478 * be freed with krb5_free_context().
480 * @param context the Kerberos context to copy
481 * @param out the copy of the Kerberos, set to NULL error.
483 * @return Returns 0 to indicate success. Otherwise an kerberos et
484 * error code is returned, see krb5_get_error_message().
489 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
490 krb5_copy_context(krb5_context context
, krb5_context
*out
)
497 p
= calloc(1, sizeof(*p
));
499 return krb5_enomem(context
);
501 p
->mutex
= malloc(sizeof(HEIMDAL_MUTEX
));
502 if (p
->mutex
== NULL
) {
504 return krb5_enomem(context
);
506 HEIMDAL_MUTEX_init(p
->mutex
);
509 if (context
->default_cc_name
)
510 p
->default_cc_name
= strdup(context
->default_cc_name
);
511 if (context
->default_cc_name_env
)
512 p
->default_cc_name_env
= strdup(context
->default_cc_name_env
);
514 if (context
->etypes
) {
515 ret
= copy_etypes(context
, context
->etypes
, &p
->etypes
);
519 if (context
->etypes_des
) {
520 ret
= copy_etypes(context
, context
->etypes_des
, &p
->etypes_des
);
525 if (context
->default_realms
) {
526 ret
= krb5_copy_host_realm(context
,
527 context
->default_realms
, &p
->default_realms
);
532 ret
= _krb5_config_copy(context
, context
->cf
, &p
->cf
);
536 /* XXX should copy */
539 cc_ops_copy(p
, context
);
540 kt_ops_copy(p
, context
);
543 if(context
->warn_dest
!= NULL
)
545 if(context
->debug_dest
!= NULL
)
549 ret
= krb5_set_extra_addresses(p
, context
->extra_addresses
);
552 ret
= krb5_set_extra_addresses(p
, context
->ignore_addresses
);
556 ret
= _krb5_copy_send_to_kdc_func(p
, context
);
565 krb5_free_context(p
);
572 * Frees the krb5_context allocated by krb5_init_context().
574 * @param context context to be freed.
579 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
580 krb5_free_context(krb5_context context
)
582 if (context
->default_cc_name
)
583 free(context
->default_cc_name
);
584 if (context
->default_cc_name_env
)
585 free(context
->default_cc_name_env
);
586 free(context
->etypes
);
587 free(context
->etypes_des
);
588 krb5_free_host_realm (context
, context
->default_realms
);
589 krb5_config_file_free (context
, context
->cf
);
590 free_error_table (context
->et_list
);
591 free(rk_UNCONST(context
->cc_ops
));
592 free(context
->kt_types
);
593 krb5_clear_error_message(context
);
594 if(context
->warn_dest
!= NULL
)
595 krb5_closelog(context
, context
->warn_dest
);
596 if(context
->debug_dest
!= NULL
)
597 krb5_closelog(context
, context
->debug_dest
);
598 krb5_set_extra_addresses(context
, NULL
);
599 krb5_set_ignore_addresses(context
, NULL
);
600 krb5_set_send_to_kdc_func(context
, NULL
, NULL
);
603 if (context
->hx509ctx
)
604 hx509_context_free(&context
->hx509ctx
);
607 HEIMDAL_MUTEX_destroy(context
->mutex
);
608 free(context
->mutex
);
609 if (context
->flags
& KRB5_CTX_F_SOCKETS_INITIALIZED
) {
613 memset(context
, 0, sizeof(*context
));
618 * Reinit the context from a new set of filenames.
620 * @param context context to add configuration too.
621 * @param filenames array of filenames, end of list is indicated with a NULL filename.
623 * @return Returns 0 to indicate success. Otherwise an kerberos et
624 * error code is returned, see krb5_get_error_message().
629 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
630 krb5_set_config_files(krb5_context context
, char **filenames
)
633 krb5_config_binding
*tmp
= NULL
;
634 while(filenames
!= NULL
&& *filenames
!= NULL
&& **filenames
!= '\0') {
635 ret
= krb5_config_parse_file_multi(context
, *filenames
, &tmp
);
636 if(ret
!= 0 && ret
!= ENOENT
&& ret
!= EACCES
&& ret
!= EPERM
) {
637 krb5_config_file_free(context
, tmp
);
643 /* with this enabled and if there are no config files, Kerberos is
644 considererd disabled */
650 _krb5_load_config_from_registry(context
, &tmp
);
653 krb5_config_file_free(context
, context
->cf
);
655 ret
= init_context_from_config_file(context
);
659 static krb5_error_code
660 add_file(char ***pfilenames
, int *len
, char *file
)
662 char **pp
= *pfilenames
;
665 for(i
= 0; i
< *len
; i
++) {
666 if(strcmp(pp
[i
], file
) == 0) {
672 pp
= realloc(*pfilenames
, (*len
+ 2) * sizeof(*pp
));
686 * `pq' isn't free, it's up the the caller
689 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
690 krb5_prepend_config_files(const char *filelist
, char **pq
, char ***ret_pp
)
705 l
= strsep_copy(&q
, PATH_SEP
, NULL
, 0);
710 krb5_free_config_files(pp
);
713 (void)strsep_copy(&p
, PATH_SEP
, fn
, l
+ 1);
714 ret
= add_file(&pp
, &len
, fn
);
716 krb5_free_config_files(pp
);
724 for (i
= 0; pq
[i
] != NULL
; i
++) {
727 krb5_free_config_files(pp
);
730 ret
= add_file(&pp
, &len
, fn
);
732 krb5_free_config_files(pp
);
743 * Prepend the filename to the global configuration list.
745 * @param filelist a filename to add to the default list of filename
746 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
748 * @return Returns 0 to indicate success. Otherwise an kerberos et
749 * error code is returned, see krb5_get_error_message().
754 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
755 krb5_prepend_config_files_default(const char *filelist
, char ***pfilenames
)
758 char **defpp
, **pp
= NULL
;
760 ret
= krb5_get_default_config_files(&defpp
);
764 ret
= krb5_prepend_config_files(filelist
, defpp
, &pp
);
765 krb5_free_config_files(defpp
);
776 * Checks the registry for configuration file location
778 * Kerberos for Windows and other legacy Kerberos applications expect
779 * to find the configuration file location in the
780 * SOFTWARE\MIT\Kerberos registry key under the value "config".
783 _krb5_get_default_config_config_files_from_registry()
785 static const char * KeyName
= "Software\\MIT\\Kerberos";
786 char *config_file
= NULL
;
790 rcode
= RegOpenKeyEx(HKEY_CURRENT_USER
, 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
);
800 rcode
= RegOpenKeyEx(HKEY_LOCAL_MACHINE
, KeyName
, 0, KEY_READ
, &key
);
801 if (rcode
== ERROR_SUCCESS
) {
802 config_file
= _krb5_parse_reg_value_as_multi_string(NULL
, key
, "config",
803 REG_NONE
, 0, PATH_SEP
);
813 * Get the global configuration list.
815 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
817 * @return Returns 0 to indicate success. Otherwise an kerberos et
818 * error code is returned, see krb5_get_error_message().
823 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
824 krb5_get_default_config_files(char ***pfilenames
)
826 const char *files
= NULL
;
828 if (pfilenames
== NULL
)
831 files
= getenv("KRB5_CONFIG");
836 reg_files
= _krb5_get_default_config_config_files_from_registry();
837 if (reg_files
!= NULL
) {
838 krb5_error_code code
;
840 code
= krb5_prepend_config_files(reg_files
, NULL
, pfilenames
);
849 files
= krb5_config_file
;
851 return krb5_prepend_config_files(files
, NULL
, pfilenames
);
855 * Free a list of configuration files.
857 * @param filenames list, terminated with a NULL pointer, to be
858 * freed. NULL is an valid argument.
860 * @return Returns 0 to indicate success. Otherwise an kerberos et
861 * error code is returned, see krb5_get_error_message().
866 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
867 krb5_free_config_files(char **filenames
)
870 for(p
= filenames
; p
&& *p
!= NULL
; p
++)
876 * Returns the list of Kerberos encryption types sorted in order of
877 * most preferred to least preferred encryption type. Note that some
878 * encryption types might be disabled, so you need to check with
879 * krb5_enctype_valid() before using the encryption type.
881 * @return list of enctypes, terminated with ETYPE_NULL. Its a static
882 * array completed into the Kerberos library so the content doesn't
888 KRB5_LIB_FUNCTION
const krb5_enctype
* KRB5_LIB_CALL
889 krb5_kerberos_enctypes(krb5_context context
)
891 static const krb5_enctype p
[] = {
892 ETYPE_AES256_CTS_HMAC_SHA1_96
,
893 ETYPE_AES128_CTS_HMAC_SHA1_96
,
895 ETYPE_ARCFOUR_HMAC_MD5
,
899 static const krb5_enctype weak
[] = {
900 ETYPE_AES256_CTS_HMAC_SHA1_96
,
901 ETYPE_AES128_CTS_HMAC_SHA1_96
,
904 ETYPE_ARCFOUR_HMAC_MD5
,
912 * if the list of enctypes enabled by "allow_weak_crypto"
913 * are valid, then return the former default enctype list
914 * that contained the weak entries.
916 if (krb5_enctype_valid(context
, ETYPE_DES_CBC_CRC
) == 0 &&
917 krb5_enctype_valid(context
, ETYPE_DES_CBC_MD4
) == 0 &&
918 krb5_enctype_valid(context
, ETYPE_DES_CBC_MD5
) == 0 &&
919 krb5_enctype_valid(context
, ETYPE_DES_CBC_NONE
) == 0 &&
920 krb5_enctype_valid(context
, ETYPE_DES_CFB64_NONE
) == 0 &&
921 krb5_enctype_valid(context
, ETYPE_DES_PCBC_NONE
) == 0)
931 static krb5_error_code
932 copy_enctypes(krb5_context context
,
933 const krb5_enctype
*in
,
936 krb5_enctype
*p
= NULL
;
939 for (n
= 0; in
[n
]; n
++)
944 return krb5_enomem(context
);
945 for (n
= 0, m
= 0; in
[n
]; n
++) {
946 if (krb5_enctype_valid(context
, in
[n
]) != 0)
950 p
[m
] = KRB5_ENCTYPE_NULL
;
953 krb5_set_error_message (context
, KRB5_PROG_ETYPE_NOSUPP
,
954 N_("no valid enctype set", ""));
955 return KRB5_PROG_ETYPE_NOSUPP
;
963 * set `etype' to a malloced list of the default enctypes
966 static krb5_error_code
967 default_etypes(krb5_context context
, krb5_enctype
**etype
)
969 const krb5_enctype
*p
= krb5_kerberos_enctypes(context
);
970 return copy_enctypes(context
, p
, etype
);
974 * Set the default encryption types that will be use in communcation
975 * with the KDC, clients and servers.
977 * @param context Kerberos 5 context.
978 * @param etypes Encryption types, array terminated with ETYPE_NULL (0).
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_set_default_in_tkt_etypes(krb5_context context
,
988 const krb5_enctype
*etypes
)
991 krb5_enctype
*p
= NULL
;
994 ret
= copy_enctypes(context
, etypes
, &p
);
999 free(context
->etypes
);
1000 context
->etypes
= p
;
1005 * Get the default encryption types that will be use in communcation
1006 * with the KDC, clients and servers.
1008 * @param context Kerberos 5 context.
1009 * @param etypes Encryption types, array terminated with
1010 * ETYPE_NULL(0), caller should free array with krb5_xfree():
1012 * @return Returns 0 to indicate success. Otherwise an kerberos et
1013 * error code is returned, see krb5_get_error_message().
1018 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1019 krb5_get_default_in_tkt_etypes(krb5_context context
,
1021 krb5_enctype
**etypes
)
1023 krb5_enctype
*enctypes
= NULL
;
1024 krb5_error_code ret
;
1027 heim_assert(pdu_type
== KRB5_PDU_AS_REQUEST
||
1028 pdu_type
== KRB5_PDU_TGS_REQUEST
||
1029 pdu_type
== KRB5_PDU_NONE
, "pdu contant not as expected");
1031 if (pdu_type
== KRB5_PDU_AS_REQUEST
&& context
->as_etypes
!= NULL
)
1032 enctypes
= context
->as_etypes
;
1033 else if (pdu_type
== KRB5_PDU_TGS_REQUEST
&& context
->tgs_etypes
!= NULL
)
1034 enctypes
= context
->tgs_etypes
;
1035 else if (context
->etypes
!= NULL
)
1036 enctypes
= context
->etypes
;
1038 if (enctypes
!= NULL
) {
1039 ret
= copy_enctypes(context
, enctypes
, &p
);
1043 ret
= default_etypes(context
, &p
);
1052 * Init the built-in ets in the Kerberos library.
1054 * @param context kerberos context to add the ets too
1059 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1060 krb5_init_ets(krb5_context context
)
1062 if(context
->et_list
== NULL
){
1063 krb5_add_et_list(context
, initialize_krb5_error_table_r
);
1064 krb5_add_et_list(context
, initialize_asn1_error_table_r
);
1065 krb5_add_et_list(context
, initialize_heim_error_table_r
);
1067 krb5_add_et_list(context
, initialize_k524_error_table_r
);
1069 #ifdef COM_ERR_BINDDOMAIN_krb5
1070 bindtextdomain(COM_ERR_BINDDOMAIN_krb5
, HEIMDAL_LOCALEDIR
);
1071 bindtextdomain(COM_ERR_BINDDOMAIN_asn1
, HEIMDAL_LOCALEDIR
);
1072 bindtextdomain(COM_ERR_BINDDOMAIN_heim
, HEIMDAL_LOCALEDIR
);
1073 bindtextdomain(COM_ERR_BINDDOMAIN_k524
, HEIMDAL_LOCALEDIR
);
1077 krb5_add_et_list(context
, initialize_hx_error_table_r
);
1078 #ifdef COM_ERR_BINDDOMAIN_hx
1079 bindtextdomain(COM_ERR_BINDDOMAIN_hx
, HEIMDAL_LOCALEDIR
);
1086 * Make the kerberos library default to the admin KDC.
1088 * @param context Kerberos 5 context.
1089 * @param flag boolean flag to select if the use the admin KDC or not.
1094 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1095 krb5_set_use_admin_kdc (krb5_context context
, krb5_boolean flag
)
1097 context
->use_admin_kdc
= flag
;
1101 * Make the kerberos library default to the admin KDC.
1103 * @param context Kerberos 5 context.
1105 * @return boolean flag to telling the context will use admin KDC as the default KDC.
1110 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1111 krb5_get_use_admin_kdc (krb5_context context
)
1113 return context
->use_admin_kdc
;
1117 * Add extra address to the address list that the library will add to
1118 * the client's address list when communicating with the KDC.
1120 * @param context Kerberos 5 context.
1121 * @param addresses addreses to add
1123 * @return Returns 0 to indicate success. Otherwise an kerberos et
1124 * error code is returned, see krb5_get_error_message().
1129 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1130 krb5_add_extra_addresses(krb5_context context
, krb5_addresses
*addresses
)
1133 if(context
->extra_addresses
)
1134 return krb5_append_addresses(context
,
1135 context
->extra_addresses
, addresses
);
1137 return krb5_set_extra_addresses(context
, addresses
);
1141 * Set extra address to the address list that the library will add to
1142 * the client's address list when communicating with the KDC.
1144 * @param context Kerberos 5 context.
1145 * @param addresses addreses to set
1147 * @return Returns 0 to indicate success. Otherwise an kerberos et
1148 * error code is returned, see krb5_get_error_message().
1153 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1154 krb5_set_extra_addresses(krb5_context context
, const krb5_addresses
*addresses
)
1156 if(context
->extra_addresses
)
1157 krb5_free_addresses(context
, context
->extra_addresses
);
1159 if(addresses
== NULL
) {
1160 if(context
->extra_addresses
!= NULL
) {
1161 free(context
->extra_addresses
);
1162 context
->extra_addresses
= NULL
;
1166 if(context
->extra_addresses
== NULL
) {
1167 context
->extra_addresses
= malloc(sizeof(*context
->extra_addresses
));
1168 if (context
->extra_addresses
== NULL
)
1169 return krb5_enomem(context
);
1171 return krb5_copy_addresses(context
, addresses
, context
->extra_addresses
);
1175 * Get extra address to the address list that the library will add to
1176 * the client's address list when communicating with the KDC.
1178 * @param context Kerberos 5 context.
1179 * @param addresses addreses to set
1181 * @return Returns 0 to indicate success. Otherwise an kerberos et
1182 * error code is returned, see krb5_get_error_message().
1187 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1188 krb5_get_extra_addresses(krb5_context context
, krb5_addresses
*addresses
)
1190 if(context
->extra_addresses
== NULL
) {
1191 memset(addresses
, 0, sizeof(*addresses
));
1194 return krb5_copy_addresses(context
,context
->extra_addresses
, addresses
);
1198 * Add extra addresses to ignore when fetching addresses from the
1199 * underlaying operating system.
1201 * @param context Kerberos 5 context.
1202 * @param addresses addreses to ignore
1204 * @return Returns 0 to indicate success. Otherwise an kerberos et
1205 * error code is returned, see krb5_get_error_message().
1210 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1211 krb5_add_ignore_addresses(krb5_context context
, krb5_addresses
*addresses
)
1214 if(context
->ignore_addresses
)
1215 return krb5_append_addresses(context
,
1216 context
->ignore_addresses
, addresses
);
1218 return krb5_set_ignore_addresses(context
, addresses
);
1222 * Set extra addresses to ignore when fetching addresses from the
1223 * underlaying operating system.
1225 * @param context Kerberos 5 context.
1226 * @param addresses addreses to ignore
1228 * @return Returns 0 to indicate success. Otherwise an kerberos et
1229 * error code is returned, see krb5_get_error_message().
1234 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1235 krb5_set_ignore_addresses(krb5_context context
, const krb5_addresses
*addresses
)
1237 if(context
->ignore_addresses
)
1238 krb5_free_addresses(context
, context
->ignore_addresses
);
1239 if(addresses
== NULL
) {
1240 if(context
->ignore_addresses
!= NULL
) {
1241 free(context
->ignore_addresses
);
1242 context
->ignore_addresses
= NULL
;
1246 if(context
->ignore_addresses
== NULL
) {
1247 context
->ignore_addresses
= malloc(sizeof(*context
->ignore_addresses
));
1248 if (context
->ignore_addresses
== NULL
)
1249 return krb5_enomem(context
);
1251 return krb5_copy_addresses(context
, addresses
, context
->ignore_addresses
);
1255 * Get extra addresses to ignore when fetching addresses from the
1256 * underlaying operating system.
1258 * @param context Kerberos 5 context.
1259 * @param addresses list addreses ignored
1261 * @return Returns 0 to indicate success. Otherwise an kerberos et
1262 * error code is returned, see krb5_get_error_message().
1267 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1268 krb5_get_ignore_addresses(krb5_context context
, krb5_addresses
*addresses
)
1270 if(context
->ignore_addresses
== NULL
) {
1271 memset(addresses
, 0, sizeof(*addresses
));
1274 return krb5_copy_addresses(context
, context
->ignore_addresses
, addresses
);
1278 * Set version of fcache that the library should use.
1280 * @param context Kerberos 5 context.
1281 * @param version version number.
1283 * @return Returns 0 to indicate success. Otherwise an kerberos et
1284 * error code is returned, see krb5_get_error_message().
1289 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1290 krb5_set_fcache_version(krb5_context context
, int version
)
1292 context
->fcache_vno
= version
;
1297 * Get version of fcache that the library should use.
1299 * @param context Kerberos 5 context.
1300 * @param version version number.
1302 * @return Returns 0 to indicate success. Otherwise an kerberos et
1303 * error code is returned, see krb5_get_error_message().
1308 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1309 krb5_get_fcache_version(krb5_context context
, int *version
)
1311 *version
= context
->fcache_vno
;
1316 * Runtime check if the Kerberos library was complied with thread support.
1318 * @return TRUE if the library was compiled with thread support, FALSE if not.
1324 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1325 krb5_is_thread_safe(void)
1327 #ifdef ENABLE_PTHREAD_SUPPORT
1335 * Set if the library should use DNS to canonicalize hostnames.
1337 * @param context Kerberos 5 context.
1338 * @param flag if its dns canonicalizion is used or not.
1343 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1344 krb5_set_dns_canonicalize_hostname (krb5_context context
, krb5_boolean flag
)
1347 context
->flags
|= KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
;
1349 context
->flags
&= ~KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
;
1353 * Get if the library uses DNS to canonicalize hostnames.
1355 * @param context Kerberos 5 context.
1357 * @return return non zero if the library uses DNS to canonicalize hostnames.
1362 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1363 krb5_get_dns_canonicalize_hostname (krb5_context context
)
1365 return (context
->flags
& KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
) ? 1 : 0;
1369 * Get current offset in time to the KDC.
1371 * @param context Kerberos 5 context.
1372 * @param sec seconds part of offset.
1373 * @param usec micro seconds part of offset.
1375 * @return returns zero
1380 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1381 krb5_get_kdc_sec_offset (krb5_context context
, int32_t *sec
, int32_t *usec
)
1384 *sec
= context
->kdc_sec_offset
;
1386 *usec
= context
->kdc_usec_offset
;
1391 * Set current offset in time to the KDC.
1393 * @param context Kerberos 5 context.
1394 * @param sec seconds part of offset.
1395 * @param usec micro seconds part of offset.
1397 * @return returns zero
1402 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1403 krb5_set_kdc_sec_offset (krb5_context context
, int32_t sec
, int32_t usec
)
1405 context
->kdc_sec_offset
= sec
;
1407 context
->kdc_usec_offset
= usec
;
1412 * Get max time skew allowed.
1414 * @param context Kerberos 5 context.
1416 * @return timeskew in seconds.
1421 KRB5_LIB_FUNCTION
time_t KRB5_LIB_CALL
1422 krb5_get_max_time_skew (krb5_context context
)
1424 return context
->max_skew
;
1428 * Set max time skew allowed.
1430 * @param context Kerberos 5 context.
1431 * @param t timeskew in seconds.
1436 KRB5_LIB_FUNCTION
void KRB5_LIB_CALL
1437 krb5_set_max_time_skew (krb5_context context
, time_t t
)
1439 context
->max_skew
= t
;
1443 * Init encryption types in len, val with etypes.
1445 * @param context Kerberos 5 context.
1446 * @param pdu_type type of pdu
1447 * @param len output length of val.
1448 * @param val output array of enctypes.
1449 * @param etypes etypes to set val and len to, if NULL, use default enctypes.
1451 * @return Returns 0 to indicate success. Otherwise an kerberos et
1452 * error code is returned, see krb5_get_error_message().
1457 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
1458 _krb5_init_etype(krb5_context context
,
1462 const krb5_enctype
*etypes
)
1464 krb5_error_code ret
;
1467 ret
= krb5_get_default_in_tkt_etypes(context
, pdu_type
, val
);
1469 ret
= copy_enctypes(context
, etypes
, val
);
1475 while ((*val
)[*len
] != KRB5_ENCTYPE_NULL
)
1482 * Allow homedir accces
1485 static HEIMDAL_MUTEX homedir_mutex
= HEIMDAL_MUTEX_INITIALIZER
;
1486 static krb5_boolean allow_homedir
= TRUE
;
1489 _krb5_homedir_access(krb5_context context
)
1493 if (context
&& (context
->flags
& KRB5_CTX_F_HOMEDIR_ACCESS
) == 0)
1496 HEIMDAL_MUTEX_lock(&homedir_mutex
);
1497 allow
= allow_homedir
;
1498 HEIMDAL_MUTEX_unlock(&homedir_mutex
);
1503 * Enable and disable home directory access on either the global state
1504 * or the krb5_context state. By calling krb5_set_home_dir_access()
1505 * with context set to NULL, the global state is configured otherwise
1506 * the state for the krb5_context is modified.
1508 * For home directory access to be allowed, both the global state and
1509 * the krb5_context state have to be allowed.
1511 * Administrator (root user), never uses the home directory.
1513 * @param context a Kerberos 5 context or NULL
1514 * @param allow allow if TRUE home directory
1515 * @return the old value
1520 KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL
1521 krb5_set_home_dir_access(krb5_context context
, krb5_boolean allow
)
1525 old
= (context
->flags
& KRB5_CTX_F_HOMEDIR_ACCESS
) ? TRUE
: FALSE
;
1527 context
->flags
|= KRB5_CTX_F_HOMEDIR_ACCESS
;
1529 context
->flags
&= ~KRB5_CTX_F_HOMEDIR_ACCESS
;
1531 HEIMDAL_MUTEX_lock(&homedir_mutex
);
1532 old
= allow_homedir
;
1533 allow_homedir
= allow
;
1534 HEIMDAL_MUTEX_unlock(&homedir_mutex
);