2 * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include "krb5_locl.h"
37 #define INIT_FIELD(C, T, E, D, F) \
38 (C)->E = krb5_config_get_ ## T ## _default ((C), NULL, (D), \
39 "libdefaults", F, NULL)
41 #define INIT_FLAG(C, O, V, D, F) \
43 if (krb5_config_get_bool_default((C), NULL, (D),"libdefaults", F, NULL)) { \
49 * Set the list of etypes `ret_etypes' from the configuration variable
53 static krb5_error_code
54 set_etypes (krb5_context context
,
56 krb5_enctype
**ret_enctypes
)
59 krb5_enctype
*etypes
= NULL
;
61 etypes_str
= krb5_config_get_strings(context
, NULL
, "libdefaults",
65 for(i
= 0; etypes_str
[i
]; i
++);
66 etypes
= malloc((i
+1) * sizeof(*etypes
));
68 krb5_config_free_strings (etypes_str
);
69 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
72 for(j
= 0, k
= 0; j
< i
; j
++) {
74 if(krb5_string_to_enctype(context
, etypes_str
[j
], &e
) != 0)
76 if (krb5_enctype_valid(context
, e
) != 0)
80 etypes
[k
] = ETYPE_NULL
;
81 krb5_config_free_strings(etypes_str
);
83 *ret_enctypes
= etypes
;
88 * read variables from the configuration file and set in `context'
91 static krb5_error_code
92 init_context_from_config_file(krb5_context context
)
97 krb5_enctype
*tmptypes
;
99 INIT_FIELD(context
, time
, max_skew
, 5 * 60, "clockskew");
100 INIT_FIELD(context
, time
, kdc_timeout
, 3, "kdc_timeout");
101 INIT_FIELD(context
, int, max_retries
, 3, "max_retries");
103 INIT_FIELD(context
, string
, http_proxy
, NULL
, "http_proxy");
105 ret
= set_etypes (context
, "default_etypes", &tmptypes
);
108 free(context
->etypes
);
109 context
->etypes
= tmptypes
;
111 ret
= set_etypes (context
, "default_etypes_des", &tmptypes
);
114 free(context
->etypes_des
);
115 context
->etypes_des
= tmptypes
;
117 /* default keytab name */
120 tmp
= getenv("KRB5_KTNAME");
122 context
->default_keytab
= tmp
;
124 INIT_FIELD(context
, string
, default_keytab
,
125 KEYTAB_DEFAULT
, "default_keytab_name");
127 INIT_FIELD(context
, string
, default_keytab_modify
,
128 NULL
, "default_keytab_modify_name");
130 INIT_FIELD(context
, string
, time_fmt
,
131 "%Y-%m-%dT%H:%M:%S", "time_format");
133 INIT_FIELD(context
, string
, date_fmt
,
134 "%Y-%m-%d", "date_format");
136 INIT_FIELD(context
, bool, log_utc
,
141 /* init dns-proxy slime */
142 tmp
= krb5_config_get_string(context
, NULL
, "libdefaults",
145 roken_gethostby_setup(context
->http_proxy
, tmp
);
146 krb5_free_host_realm (context
, context
->default_realms
);
147 context
->default_realms
= NULL
;
150 krb5_addresses addresses
;
153 krb5_set_extra_addresses(context
, NULL
);
154 adr
= krb5_config_get_strings(context
, NULL
,
158 memset(&addresses
, 0, sizeof(addresses
));
159 for(a
= adr
; a
&& *a
; a
++) {
160 ret
= krb5_parse_address(context
, *a
, &addresses
);
162 krb5_add_extra_addresses(context
, &addresses
);
163 krb5_free_addresses(context
, &addresses
);
166 krb5_config_free_strings(adr
);
168 krb5_set_ignore_addresses(context
, NULL
);
169 adr
= krb5_config_get_strings(context
, NULL
,
173 memset(&addresses
, 0, sizeof(addresses
));
174 for(a
= adr
; a
&& *a
; a
++) {
175 ret
= krb5_parse_address(context
, *a
, &addresses
);
177 krb5_add_ignore_addresses(context
, &addresses
);
178 krb5_free_addresses(context
, &addresses
);
181 krb5_config_free_strings(adr
);
184 INIT_FIELD(context
, bool, scan_interfaces
, TRUE
, "scan_interfaces");
185 INIT_FIELD(context
, int, fcache_vno
, 0, "fcache_version");
186 /* prefer dns_lookup_kdc over srv_lookup. */
187 INIT_FIELD(context
, bool, srv_lookup
, TRUE
, "srv_lookup");
188 INIT_FIELD(context
, bool, srv_lookup
, context
->srv_lookup
, "dns_lookup_kdc");
189 INIT_FIELD(context
, int, large_msg_size
, 1400, "large_message_size");
190 INIT_FLAG(context
, flags
, KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
, TRUE
, "dns_canonicalize_hostname");
191 INIT_FLAG(context
, flags
, KRB5_CTX_F_CHECK_PAC
, TRUE
, "check_pac");
192 context
->default_cc_name
= NULL
;
193 context
->default_cc_name_set
= 0;
195 ret
= krb5_config_get_bool_default(context
, NULL
, FALSE
,
197 "allow_weak_crypto", NULL
);
199 krb5_enctype_enable(context
, ETYPE_DES_CBC_CRC
);
200 krb5_enctype_enable(context
, ETYPE_DES_CBC_MD4
);
201 krb5_enctype_enable(context
, ETYPE_DES_CBC_MD5
);
202 krb5_enctype_enable(context
, ETYPE_DES_CBC_NONE
);
203 krb5_enctype_enable(context
, ETYPE_DES_CFB64_NONE
);
204 krb5_enctype_enable(context
, ETYPE_DES_PCBC_NONE
);
207 s
= krb5_config_get_strings(context
, NULL
, "logging", "krb5", NULL
);
210 krb5_initlog(context
, "libkrb5", &context
->debug_dest
);
212 krb5_addlog_dest(context
, context
->debug_dest
, *p
);
213 krb5_config_free_strings(s
);
220 static krb5_error_code
221 cc_ops_register(krb5_context context
)
223 context
->cc_ops
= NULL
;
224 context
->num_cc_ops
= 0;
226 krb5_cc_register(context
, &krb5_acc_ops
, TRUE
);
227 krb5_cc_register(context
, &krb5_fcc_ops
, TRUE
);
228 krb5_cc_register(context
, &krb5_mcc_ops
, TRUE
);
229 krb5_cc_register(context
, &krb5_scc_ops
, TRUE
);
231 krb5_cc_register(context
, &krb5_kcm_ops
, TRUE
);
236 static krb5_error_code
237 kt_ops_register(krb5_context context
)
239 context
->num_kt_types
= 0;
240 context
->kt_types
= NULL
;
242 krb5_kt_register (context
, &krb5_fkt_ops
);
243 krb5_kt_register (context
, &krb5_wrfkt_ops
);
244 krb5_kt_register (context
, &krb5_javakt_ops
);
245 krb5_kt_register (context
, &krb5_mkt_ops
);
246 #ifndef HEIMDAL_SMALLER
247 krb5_kt_register (context
, &krb5_akf_ops
);
249 krb5_kt_register (context
, &krb5_any_ops
);
255 * Initializes the context structure and reads the configuration file
256 * /etc/krb5.conf. The structure should be freed by calling
257 * krb5_free_context() when it is no longer being used.
259 * @param context pointer to returned context
261 * @return Returns 0 to indicate success. Otherwise an errno code is
262 * returned. Failure means either that something bad happened during
263 * initialization (typically ENOMEM) or that Kerberos should not be
269 krb5_error_code KRB5_LIB_FUNCTION
270 krb5_init_context(krb5_context
*context
)
278 /* should have a run_once */
279 bindtextdomain(HEIMDAL_TEXTDOMAIN
, HEIMDAL_LOCALEDIR
);
281 p
= calloc(1, sizeof(*p
));
285 p
->mutex
= malloc(sizeof(HEIMDAL_MUTEX
));
286 if (p
->mutex
== NULL
) {
290 HEIMDAL_MUTEX_init(p
->mutex
);
292 p
->flags
|= KRB5_CTX_F_HOMEDIR_ACCESS
;
294 ret
= krb5_get_default_config_files(&files
);
297 ret
= krb5_set_config_files(p
, files
);
298 krb5_free_config_files(files
);
302 /* init error tables */
308 ret
= hx509_context_init(&p
->hx509ctx
);
315 krb5_free_context(p
);
322 #ifndef HEIMDAL_SMALLER
328 static krb5_error_code
329 copy_etypes (krb5_context context
,
330 krb5_enctype
*enctypes
,
331 krb5_enctype
**ret_enctypes
)
335 for (i
= 0; enctypes
[i
]; i
++)
339 *ret_enctypes
= malloc(sizeof(ret_enctypes
[0]) * i
);
340 if (*ret_enctypes
== NULL
) {
341 krb5_set_error_message(context
, ENOMEM
,
342 N_("malloc: out of memory", ""));
345 memcpy(*ret_enctypes
, enctypes
, sizeof(ret_enctypes
[0]) * i
);
350 * Make a copy for the Kerberos 5 context, the new krb5_context shoud
351 * be freed with krb5_free_context().
353 * @param context the Kerberos context to copy
354 * @param out the copy of the Kerberos, set to NULL error.
356 * @return Returns 0 to indicate success. Otherwise an kerberos et
357 * error code is returned, see krb5_get_error_message().
362 krb5_error_code KRB5_LIB_FUNCTION
363 krb5_copy_context(krb5_context context
, krb5_context
*out
)
370 p
= calloc(1, sizeof(*p
));
372 krb5_set_error_message(context
, ENOMEM
, N_("malloc: out of memory", ""));
376 p
->mutex
= malloc(sizeof(HEIMDAL_MUTEX
));
377 if (p
->mutex
== NULL
) {
378 krb5_set_error_message(context
, ENOMEM
, N_("malloc: out of memory", ""));
382 HEIMDAL_MUTEX_init(p
->mutex
);
385 if (context
->default_cc_name
)
386 p
->default_cc_name
= strdup(context
->default_cc_name
);
387 if (context
->default_cc_name_env
)
388 p
->default_cc_name_env
= strdup(context
->default_cc_name_env
);
390 if (context
->etypes
) {
391 ret
= copy_etypes(context
, context
->etypes
, &p
->etypes
);
395 if (context
->etypes_des
) {
396 ret
= copy_etypes(context
, context
->etypes_des
, &p
->etypes_des
);
401 if (context
->default_realms
) {
402 ret
= krb5_copy_host_realm(context
,
403 context
->default_realms
, &p
->default_realms
);
408 ret
= _krb5_config_copy(context
, context
->cf
, &p
->cf
);
412 /* XXX should copy */
418 if(context
->warn_dest
!= NULL
)
420 if(context
->debug_dest
!= NULL
)
424 ret
= krb5_set_extra_addresses(p
, context
->extra_addresses
);
427 ret
= krb5_set_extra_addresses(p
, context
->ignore_addresses
);
431 ret
= _krb5_copy_send_to_kdc_func(p
, context
);
440 krb5_free_context(p
);
447 * Frees the krb5_context allocated by krb5_init_context().
449 * @param context context to be freed.
454 void KRB5_LIB_FUNCTION
455 krb5_free_context(krb5_context context
)
457 if (context
->default_cc_name
)
458 free(context
->default_cc_name
);
459 if (context
->default_cc_name_env
)
460 free(context
->default_cc_name_env
);
461 free(context
->etypes
);
462 free(context
->etypes_des
);
463 krb5_free_host_realm (context
, context
->default_realms
);
464 krb5_config_file_free (context
, context
->cf
);
465 free_error_table (context
->et_list
);
466 free(context
->cc_ops
);
467 free(context
->kt_types
);
468 krb5_clear_error_message(context
);
469 if(context
->warn_dest
!= NULL
)
470 krb5_closelog(context
, context
->warn_dest
);
471 if(context
->debug_dest
!= NULL
)
472 krb5_closelog(context
, context
->debug_dest
);
473 krb5_set_extra_addresses(context
, NULL
);
474 krb5_set_ignore_addresses(context
, NULL
);
475 krb5_set_send_to_kdc_func(context
, NULL
, NULL
);
477 HEIMDAL_MUTEX_destroy(context
->mutex
);
478 free(context
->mutex
);
480 memset(context
, 0, sizeof(*context
));
485 * Reinit the context from a new set of filenames.
487 * @param context context to add configuration too.
488 * @param filenames array of filenames, end of list is indicated with a NULL filename.
490 * @return Returns 0 to indicate success. Otherwise an kerberos et
491 * error code is returned, see krb5_get_error_message().
496 krb5_error_code KRB5_LIB_FUNCTION
497 krb5_set_config_files(krb5_context context
, char **filenames
)
500 krb5_config_binding
*tmp
= NULL
;
501 while(filenames
!= NULL
&& *filenames
!= NULL
&& **filenames
!= '\0') {
502 ret
= krb5_config_parse_file_multi(context
, *filenames
, &tmp
);
503 if(ret
!= 0 && ret
!= ENOENT
&& ret
!= EACCES
) {
504 krb5_config_file_free(context
, tmp
);
510 /* with this enabled and if there are no config files, Kerberos is
511 considererd disabled */
515 krb5_config_file_free(context
, context
->cf
);
517 ret
= init_context_from_config_file(context
);
521 static krb5_error_code
522 add_file(char ***pfilenames
, int *len
, char *file
)
524 char **pp
= *pfilenames
;
527 for(i
= 0; i
< *len
; i
++) {
528 if(strcmp(pp
[i
], file
) == 0) {
534 pp
= realloc(*pfilenames
, (*len
+ 2) * sizeof(*pp
));
548 * `pq' isn't free, it's up the the caller
551 krb5_error_code KRB5_LIB_FUNCTION
552 krb5_prepend_config_files(const char *filelist
, char **pq
, char ***ret_pp
)
567 l
= strsep_copy(&q
, ":", NULL
, 0);
572 krb5_free_config_files(pp
);
575 (void)strsep_copy(&p
, ":", fn
, l
+ 1);
576 ret
= add_file(&pp
, &len
, fn
);
578 krb5_free_config_files(pp
);
586 for (i
= 0; pq
[i
] != NULL
; i
++) {
589 krb5_free_config_files(pp
);
592 ret
= add_file(&pp
, &len
, fn
);
594 krb5_free_config_files(pp
);
605 * Prepend the filename to the global configuration list.
607 * @param filelist a filename to add to the default list of filename
608 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
610 * @return Returns 0 to indicate success. Otherwise an kerberos et
611 * error code is returned, see krb5_get_error_message().
616 krb5_error_code KRB5_LIB_FUNCTION
617 krb5_prepend_config_files_default(const char *filelist
, char ***pfilenames
)
620 char **defpp
, **pp
= NULL
;
622 ret
= krb5_get_default_config_files(&defpp
);
626 ret
= krb5_prepend_config_files(filelist
, defpp
, &pp
);
627 krb5_free_config_files(defpp
);
636 * Get the global configuration list.
638 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
640 * @return Returns 0 to indicate success. Otherwise an kerberos et
641 * error code is returned, see krb5_get_error_message().
646 krb5_error_code KRB5_LIB_FUNCTION
647 krb5_get_default_config_files(char ***pfilenames
)
649 const char *files
= NULL
;
651 if (pfilenames
== NULL
)
654 files
= getenv("KRB5_CONFIG");
656 files
= krb5_config_file
;
658 return krb5_prepend_config_files(files
, NULL
, pfilenames
);
662 * Free a list of configuration files.
664 * @param filenames list, terminated with a NULL pointer, to be
665 * freed. NULL is an valid argument.
667 * @return Returns 0 to indicate success. Otherwise an kerberos et
668 * error code is returned, see krb5_get_error_message().
673 void KRB5_LIB_FUNCTION
674 krb5_free_config_files(char **filenames
)
677 for(p
= filenames
; p
&& *p
!= NULL
; p
++)
683 * Returns the list of Kerberos encryption types sorted in order of
684 * most preferred to least preferred encryption type. Note that some
685 * encryption types might be disabled, so you need to check with
686 * krb5_enctype_valid() before using the encryption type.
688 * @return list of enctypes, terminated with ETYPE_NULL. Its a static
689 * array completed into the Kerberos library so the content doesn't
695 const krb5_enctype
* KRB5_LIB_FUNCTION
696 krb5_kerberos_enctypes(krb5_context context
)
698 static const krb5_enctype p
[] = {
699 ETYPE_AES256_CTS_HMAC_SHA1_96
,
700 ETYPE_AES128_CTS_HMAC_SHA1_96
,
703 ETYPE_ARCFOUR_HMAC_MD5
,
713 * set `etype' to a malloced list of the default enctypes
716 static krb5_error_code
717 default_etypes(krb5_context context
, krb5_enctype
**etype
)
719 const krb5_enctype
*p
;
720 krb5_enctype
*e
= NULL
, *ep
;
723 p
= krb5_kerberos_enctypes(context
);
725 for (i
= 0; p
[i
] != ETYPE_NULL
; i
++) {
726 if (krb5_enctype_valid(context
, p
[i
]) != 0)
728 ep
= realloc(e
, (n
+ 2) * sizeof(*e
));
731 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
736 e
[n
+ 1] = ETYPE_NULL
;
744 * Set the default encryption types that will be use in communcation
745 * with the KDC, clients and servers.
747 * @param context Kerberos 5 context.
748 * @param etypes Encryption types, array terminated with ETYPE_NULL (0).
750 * @return Returns 0 to indicate success. Otherwise an kerberos et
751 * error code is returned, see krb5_get_error_message().
756 krb5_error_code KRB5_LIB_FUNCTION
757 krb5_set_default_in_tkt_etypes(krb5_context context
,
758 const krb5_enctype
*etypes
)
760 krb5_enctype
*p
= NULL
;
764 for (i
= 0; etypes
[i
]; ++i
) {
766 ret
= krb5_enctype_valid(context
, etypes
[i
]);
773 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
776 memmove(p
, etypes
, i
* sizeof(krb5_enctype
));
779 free(context
->etypes
);
785 * Get the default encryption types that will be use in communcation
786 * with the KDC, clients and servers.
788 * @param context Kerberos 5 context.
789 * @param etypes Encryption types, array terminated with
790 * ETYPE_NULL(0), caller should free array with krb5_xfree():
792 * @return Returns 0 to indicate success. Otherwise an kerberos et
793 * error code is returned, see krb5_get_error_message().
798 krb5_error_code KRB5_LIB_FUNCTION
799 krb5_get_default_in_tkt_etypes(krb5_context context
,
800 krb5_enctype
**etypes
)
806 if(context
->etypes
) {
807 for(i
= 0; context
->etypes
[i
]; i
++);
811 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
814 memmove(p
, context
->etypes
, i
* sizeof(krb5_enctype
));
816 ret
= default_etypes(context
, &p
);
825 * Return the error string for the error code. The caller must not
828 * @param context Kerberos 5 context.
829 * @param code Kerberos error code.
831 * @return the error message matching code
836 const char* KRB5_LIB_FUNCTION
837 krb5_get_err_text(krb5_context context
, krb5_error_code code
)
839 const char *p
= NULL
;
841 p
= com_right(context
->et_list
, code
);
850 * Init the built-in ets in the Kerberos library.
852 * @param context kerberos context to add the ets too
857 void KRB5_LIB_FUNCTION
858 krb5_init_ets(krb5_context context
)
860 if(context
->et_list
== NULL
){
861 krb5_add_et_list(context
, initialize_krb5_error_table_r
);
862 krb5_add_et_list(context
, initialize_asn1_error_table_r
);
863 krb5_add_et_list(context
, initialize_heim_error_table_r
);
865 krb5_add_et_list(context
, initialize_k524_error_table_r
);
867 #ifdef COM_ERR_BINDDOMAIN_krb5
868 bindtextdomain(COM_ERR_BINDDOMAIN_krb5
, HEIMDAL_LOCALEDIR
);
869 bindtextdomain(COM_ERR_BINDDOMAIN_asn1
, HEIMDAL_LOCALEDIR
);
870 bindtextdomain(COM_ERR_BINDDOMAIN_heim
, HEIMDAL_LOCALEDIR
);
871 bindtextdomain(COM_ERR_BINDDOMAIN_k524
, HEIMDAL_LOCALEDIR
);
875 krb5_add_et_list(context
, initialize_hx_error_table_r
);
876 #ifdef COM_ERR_BINDDOMAIN_hx
877 bindtextdomain(COM_ERR_BINDDOMAIN_hx
, HEIMDAL_LOCALEDIR
);
884 * Make the kerberos library default to the admin KDC.
886 * @param context Kerberos 5 context.
887 * @param flag boolean flag to select if the use the admin KDC or not.
892 void KRB5_LIB_FUNCTION
893 krb5_set_use_admin_kdc (krb5_context context
, krb5_boolean flag
)
895 context
->use_admin_kdc
= flag
;
899 * Make the kerberos library default to the admin KDC.
901 * @param context Kerberos 5 context.
903 * @return boolean flag to telling the context will use admin KDC as the default KDC.
908 krb5_boolean KRB5_LIB_FUNCTION
909 krb5_get_use_admin_kdc (krb5_context context
)
911 return context
->use_admin_kdc
;
915 * Add extra address to the address list that the library will add to
916 * the client's address list when communicating with the KDC.
918 * @param context Kerberos 5 context.
919 * @param addresses addreses to add
921 * @return Returns 0 to indicate success. Otherwise an kerberos et
922 * error code is returned, see krb5_get_error_message().
927 krb5_error_code KRB5_LIB_FUNCTION
928 krb5_add_extra_addresses(krb5_context context
, krb5_addresses
*addresses
)
931 if(context
->extra_addresses
)
932 return krb5_append_addresses(context
,
933 context
->extra_addresses
, addresses
);
935 return krb5_set_extra_addresses(context
, addresses
);
939 * Set extra address to the address list that the library will add to
940 * the client's address list when communicating with the KDC.
942 * @param context Kerberos 5 context.
943 * @param addresses addreses to set
945 * @return Returns 0 to indicate success. Otherwise an kerberos et
946 * error code is returned, see krb5_get_error_message().
951 krb5_error_code KRB5_LIB_FUNCTION
952 krb5_set_extra_addresses(krb5_context context
, const krb5_addresses
*addresses
)
954 if(context
->extra_addresses
)
955 krb5_free_addresses(context
, context
->extra_addresses
);
957 if(addresses
== NULL
) {
958 if(context
->extra_addresses
!= NULL
) {
959 free(context
->extra_addresses
);
960 context
->extra_addresses
= NULL
;
964 if(context
->extra_addresses
== NULL
) {
965 context
->extra_addresses
= malloc(sizeof(*context
->extra_addresses
));
966 if(context
->extra_addresses
== NULL
) {
967 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
971 return krb5_copy_addresses(context
, addresses
, context
->extra_addresses
);
975 * Get extra address to the address list that the library will add to
976 * the client's address list when communicating with the KDC.
978 * @param context Kerberos 5 context.
979 * @param addresses addreses to set
981 * @return Returns 0 to indicate success. Otherwise an kerberos et
982 * error code is returned, see krb5_get_error_message().
987 krb5_error_code KRB5_LIB_FUNCTION
988 krb5_get_extra_addresses(krb5_context context
, krb5_addresses
*addresses
)
990 if(context
->extra_addresses
== NULL
) {
991 memset(addresses
, 0, sizeof(*addresses
));
994 return krb5_copy_addresses(context
,context
->extra_addresses
, addresses
);
998 * Add extra addresses to ignore when fetching addresses from the
999 * underlaying operating system.
1001 * @param context Kerberos 5 context.
1002 * @param addresses addreses to ignore
1004 * @return Returns 0 to indicate success. Otherwise an kerberos et
1005 * error code is returned, see krb5_get_error_message().
1010 krb5_error_code KRB5_LIB_FUNCTION
1011 krb5_add_ignore_addresses(krb5_context context
, krb5_addresses
*addresses
)
1014 if(context
->ignore_addresses
)
1015 return krb5_append_addresses(context
,
1016 context
->ignore_addresses
, addresses
);
1018 return krb5_set_ignore_addresses(context
, addresses
);
1022 * Set extra addresses to ignore when fetching addresses from the
1023 * underlaying operating system.
1025 * @param context Kerberos 5 context.
1026 * @param addresses addreses to ignore
1028 * @return Returns 0 to indicate success. Otherwise an kerberos et
1029 * error code is returned, see krb5_get_error_message().
1034 krb5_error_code KRB5_LIB_FUNCTION
1035 krb5_set_ignore_addresses(krb5_context context
, const krb5_addresses
*addresses
)
1037 if(context
->ignore_addresses
)
1038 krb5_free_addresses(context
, context
->ignore_addresses
);
1039 if(addresses
== NULL
) {
1040 if(context
->ignore_addresses
!= NULL
) {
1041 free(context
->ignore_addresses
);
1042 context
->ignore_addresses
= NULL
;
1046 if(context
->ignore_addresses
== NULL
) {
1047 context
->ignore_addresses
= malloc(sizeof(*context
->ignore_addresses
));
1048 if(context
->ignore_addresses
== NULL
) {
1049 krb5_set_error_message (context
, ENOMEM
, N_("malloc: out of memory", ""));
1053 return krb5_copy_addresses(context
, addresses
, context
->ignore_addresses
);
1057 * Get extra addresses to ignore when fetching addresses from the
1058 * underlaying operating system.
1060 * @param context Kerberos 5 context.
1061 * @param addresses list addreses ignored
1063 * @return Returns 0 to indicate success. Otherwise an kerberos et
1064 * error code is returned, see krb5_get_error_message().
1069 krb5_error_code KRB5_LIB_FUNCTION
1070 krb5_get_ignore_addresses(krb5_context context
, krb5_addresses
*addresses
)
1072 if(context
->ignore_addresses
== NULL
) {
1073 memset(addresses
, 0, sizeof(*addresses
));
1076 return krb5_copy_addresses(context
, context
->ignore_addresses
, addresses
);
1080 * Set version of fcache that the library should use.
1082 * @param context Kerberos 5 context.
1083 * @param version version number.
1085 * @return Returns 0 to indicate success. Otherwise an kerberos et
1086 * error code is returned, see krb5_get_error_message().
1091 krb5_error_code KRB5_LIB_FUNCTION
1092 krb5_set_fcache_version(krb5_context context
, int version
)
1094 context
->fcache_vno
= version
;
1099 * Get version of fcache that the library should use.
1101 * @param context Kerberos 5 context.
1102 * @param version version number.
1104 * @return Returns 0 to indicate success. Otherwise an kerberos et
1105 * error code is returned, see krb5_get_error_message().
1110 krb5_error_code KRB5_LIB_FUNCTION
1111 krb5_get_fcache_version(krb5_context context
, int *version
)
1113 *version
= context
->fcache_vno
;
1118 * Runtime check if the Kerberos library was complied with thread support.
1120 * @return TRUE if the library was compiled with thread support, FALSE if not.
1126 krb5_boolean KRB5_LIB_FUNCTION
1127 krb5_is_thread_safe(void)
1129 #ifdef ENABLE_PTHREAD_SUPPORT
1137 * Set if the library should use DNS to canonicalize hostnames.
1139 * @param context Kerberos 5 context.
1140 * @param flag if its dns canonicalizion is used or not.
1145 void KRB5_LIB_FUNCTION
1146 krb5_set_dns_canonicalize_hostname (krb5_context context
, krb5_boolean flag
)
1149 context
->flags
|= KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
;
1151 context
->flags
&= ~KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
;
1155 * Get if the library uses DNS to canonicalize hostnames.
1157 * @param context Kerberos 5 context.
1159 * @return return non zero if the library uses DNS to canonicalize hostnames.
1164 krb5_boolean KRB5_LIB_FUNCTION
1165 krb5_get_dns_canonicalize_hostname (krb5_context context
)
1167 return (context
->flags
& KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME
) ? 1 : 0;
1171 * Get current offset in time to the KDC.
1173 * @param context Kerberos 5 context.
1174 * @param sec seconds part of offset.
1175 * @param usec micro seconds part of offset.
1177 * @return returns zero
1182 krb5_error_code KRB5_LIB_FUNCTION
1183 krb5_get_kdc_sec_offset (krb5_context context
, int32_t *sec
, int32_t *usec
)
1186 *sec
= context
->kdc_sec_offset
;
1188 *usec
= context
->kdc_usec_offset
;
1193 * Set current offset in time to the KDC.
1195 * @param context Kerberos 5 context.
1196 * @param sec seconds part of offset.
1197 * @param usec micro seconds part of offset.
1199 * @return returns zero
1204 krb5_error_code KRB5_LIB_FUNCTION
1205 krb5_set_kdc_sec_offset (krb5_context context
, int32_t sec
, int32_t usec
)
1207 context
->kdc_sec_offset
= sec
;
1209 context
->kdc_usec_offset
= usec
;
1214 * Get max time skew allowed.
1216 * @param context Kerberos 5 context.
1218 * @return timeskew in seconds.
1223 time_t KRB5_LIB_FUNCTION
1224 krb5_get_max_time_skew (krb5_context context
)
1226 return context
->max_skew
;
1230 * Set max time skew allowed.
1232 * @param context Kerberos 5 context.
1233 * @param t timeskew in seconds.
1238 void KRB5_LIB_FUNCTION
1239 krb5_set_max_time_skew (krb5_context context
, time_t t
)
1241 context
->max_skew
= t
;
1245 * Init encryption types in len, val with etypes.
1247 * @param context Kerberos 5 context.
1248 * @param len output length of val.
1249 * @param val output array of enctypes.
1250 * @param etypes etypes to set val and len to, if NULL, use default enctypes.
1252 * @return Returns 0 to indicate success. Otherwise an kerberos et
1253 * error code is returned, see krb5_get_error_message().
1258 krb5_error_code KRB5_LIB_FUNCTION
1259 krb5_init_etype (krb5_context context
,
1262 const krb5_enctype
*etypes
)
1265 krb5_error_code ret
;
1266 krb5_enctype
*tmp
= NULL
;
1269 if (etypes
== NULL
) {
1270 ret
= krb5_get_default_in_tkt_etypes(context
, &tmp
);
1276 for (i
= 0; etypes
[i
]; ++i
)
1279 *val
= malloc(i
* sizeof(**val
));
1280 if (i
!= 0 && *val
== NULL
) {
1282 krb5_set_error_message(context
, ret
, N_("malloc: out of memory", ""));
1295 * Allow homedir accces
1298 static HEIMDAL_MUTEX homedir_mutex
= HEIMDAL_MUTEX_INITIALIZER
;
1299 static krb5_boolean allow_homedir
= TRUE
;
1302 _krb5_homedir_access(krb5_context context
)
1306 /* is never allowed for root */
1310 if (context
&& (context
->flags
& KRB5_CTX_F_HOMEDIR_ACCESS
) == 0)
1313 HEIMDAL_MUTEX_lock(&homedir_mutex
);
1314 allow
= allow_homedir
;
1315 HEIMDAL_MUTEX_unlock(&homedir_mutex
);
1320 * Enable and disable home directory access on either the global state
1321 * or the krb5_context state. By calling krb5_set_home_dir_access()
1322 * with context set to NULL, the global state is configured otherwise
1323 * the state for the krb5_context is modified.
1325 * For home directory access to be allowed, both the global state and
1326 * the krb5_context state have to be allowed.
1328 * Administrator (root user), never uses the home directory.
1330 * @param context a Kerberos 5 context or NULL
1331 * @param allow allow if TRUE home directory
1332 * @return the old value
1337 krb5_set_home_dir_access(krb5_context context
, krb5_boolean allow
)
1341 old
= (context
->flags
& KRB5_CTX_F_HOMEDIR_ACCESS
) ? TRUE
: FALSE
;
1343 context
->flags
|= KRB5_CTX_F_HOMEDIR_ACCESS
;
1345 context
->flags
&= ~KRB5_CTX_F_HOMEDIR_ACCESS
;
1347 HEIMDAL_MUTEX_lock(&homedir_mutex
);
1348 old
= allow_homedir
;
1349 allow_homedir
= allow
;
1350 HEIMDAL_MUTEX_unlock(&homedir_mutex
);