2 * Copyright (c) 2005, PADL Software Pty Ltd.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of PADL Software nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <parse_bytes.h>
37 RCSID("$Id: config.c 15296 2005-05-30 10:17:43Z lha $");
39 static const char *config_file; /* location of kcm config file */
41 size_t max_request = 0; /* maximal size of a request */
42 char *socket_path = NULL;
43 char *door_path = NULL;
45 static char *max_request_str; /* `max_request' as a string */
47 int detach_from_console = -1;
48 #define DETACH_IS_DEFAULT FALSE
50 static const char *system_cache_name = NULL;
51 static const char *system_keytab = NULL;
52 static const char *system_principal = NULL;
53 static const char *system_server = NULL;
54 static const char *system_perms = NULL;
55 static const char *system_user = NULL;
56 static const char *system_group = NULL;
58 static const char *renew_life = NULL;
59 static const char *ticket_life = NULL;
61 int disallow_getting_krbtgt = -1;
62 int name_constraints = -1;
65 static int version_flag;
67 static struct getargs args[] = {
69 "cache-name", 0, arg_string, &system_cache_name,
70 "system cache name", "cachename"
73 "config-file", 'c', arg_string, &config_file,
74 "location of config file", "file"
77 "group", 'g', arg_string, &system_group,
78 "system cache group", "group"
81 "max-request", 0, arg_string, &max_request,
82 "max size for a kcm-request", "size"
86 "detach", 'D', arg_negative_flag, &detach_from_console,
87 "don't detach from console"
91 "detach", 0 , arg_flag, &detach_from_console,
95 { "help", 'h', arg_flag, &help_flag },
97 "system-principal", 'k', arg_string, &system_principal,
98 "system principal name", "principal"
101 "lifetime", 'l', arg_string, &ticket_life,
102 "lifetime of system tickets", "time"
105 "mode", 'm', arg_string, &system_perms,
106 "octal mode of system cache", "mode"
109 "name-constraints", 'n', arg_negative_flag, &name_constraints,
110 "disable credentials cache name constraints"
113 "disallow-getting-krbtgt", 0, arg_flag, &disallow_getting_krbtgt,
114 "disable fetching krbtgt from the cache"
117 "renewable-life", 'r', arg_string, &renew_life,
118 "renewable lifetime of system tickets", "time"
121 "socket-path", 's', arg_string, &socket_path,
122 "path to kcm domain socket", "path"
124 #ifdef HAVE_DOOR_CREATE
126 "door-path", 's', arg_string, &door_path,
127 "path to kcm door", "path"
131 "server", 'S', arg_string, &system_server,
132 "server to get system ticket for", "principal"
135 "keytab", 't', arg_string, &system_keytab,
136 "system keytab name", "keytab"
139 "user", 'u', arg_string, &system_user,
140 "system cache owner", "user"
142 { "version", 'v', arg_flag, &version_flag }
145 static int num_args = sizeof(args) / sizeof(args[0]);
150 arg_printusage (args, num_args, NULL, "");
154 static int parse_owners(kcm_ccache ccache)
163 if (system_user != NULL) {
164 if (isdigit((unsigned char)system_user[0])) {
165 pw = getpwuid(atoi(system_user));
167 pw = getpwnam(system_user);
173 system_user = strdup(pw->pw_name);
174 if (system_user == NULL) {
178 uid = pw->pw_uid; uid_p = 1;
179 gid = pw->pw_gid; gid_p = 1;
182 if (system_group != NULL) {
183 if (isdigit((unsigned char)system_group[0])) {
184 gr = getgrgid(atoi(system_group));
186 gr = getgrnam(system_group);
192 gid = gr->gr_gid; gid_p = 1;
198 ccache->uid = 0; /* geteuid() XXX */
203 ccache->gid = 0; /* getegid() XXX */
209 kcm_system_config_get_string(const char *string)
211 return krb5_config_get_string(kcm_context, NULL, "kcm",
212 "system_ccache", string, NULL);
215 static krb5_error_code
216 ccache_init_system(void)
221 if (system_cache_name == NULL)
222 system_cache_name = kcm_system_config_get_string("cc_name");
224 ret = kcm_ccache_new(kcm_context,
225 system_cache_name ? system_cache_name : "SYSTEM",
230 ccache->flags |= KCM_FLAGS_OWNER_IS_SYSTEM;
231 ccache->flags |= KCM_FLAGS_USE_KEYTAB;
233 ret = parse_owners(ccache);
237 ret = krb5_parse_name(kcm_context, system_principal, &ccache->client);
239 kcm_release_ccache(kcm_context, &ccache);
243 if (system_server == NULL)
244 system_server = kcm_system_config_get_string("server");
246 if (system_server != NULL) {
247 ret = krb5_parse_name(kcm_context, system_server, &ccache->server);
249 kcm_release_ccache(kcm_context, &ccache);
254 if (system_keytab == NULL)
255 system_keytab = kcm_system_config_get_string("keytab_name");
257 if (system_keytab != NULL) {
258 ret = krb5_kt_resolve(kcm_context, system_keytab, &ccache->key.keytab);
260 ret = krb5_kt_default(kcm_context, &ccache->key.keytab);
263 kcm_release_ccache(kcm_context, &ccache);
267 if (renew_life == NULL)
268 renew_life = kcm_system_config_get_string("renew_life");
270 if (renew_life == NULL)
271 renew_life = "1 month";
273 if (renew_life != NULL) {
274 ccache->renew_life = parse_time(renew_life, "s");
275 if (ccache->renew_life < 0) {
276 kcm_release_ccache(kcm_context, &ccache);
281 if (ticket_life == NULL)
282 ticket_life = kcm_system_config_get_string("ticket_life");
284 if (ticket_life != NULL) {
285 ccache->tkt_life = parse_time(ticket_life, "s");
286 if (ccache->tkt_life < 0) {
287 kcm_release_ccache(kcm_context, &ccache);
292 if (system_perms == NULL)
293 system_perms = kcm_system_config_get_string("mode");
295 if (system_perms != NULL) {
298 if (sscanf(system_perms, "%o", &mode) != 1)
304 if (disallow_getting_krbtgt == -1) {
305 disallow_getting_krbtgt =
306 krb5_config_get_bool_default(kcm_context, NULL, FALSE, "kcm",
307 "disallow-getting-krbtgt", NULL);
310 /* enqueue default actions for credentials cache */
311 ret = kcm_ccache_enqueue_default(kcm_context, ccache, NULL);
313 kcm_release_ccache(kcm_context, &ccache); /* retained by event queue */
319 kcm_configure(int argc, char **argv)
325 while(getarg(args, num_args, argc, argv, &optind))
326 warnx("error at argument `%s'", argv[optind]);
345 if(config_file == NULL)
346 config_file = _PATH_KCM_CONF;
348 ret = krb5_prepend_config_files_default(config_file, &files);
350 krb5_err(kcm_context, 1, ret, "getting configuration files");
352 ret = krb5_set_config_files(kcm_context, files);
353 krb5_free_config_files(files);
355 krb5_err(kcm_context, 1, ret, "reading configuration files");
359 max_request = parse_bytes(max_request_str, NULL);
361 if(max_request == 0){
362 p = krb5_config_get_string (kcm_context,
368 max_request = parse_bytes(p, NULL);
371 if (system_principal == NULL) {
372 system_principal = kcm_system_config_get_string("principal");
375 if (system_principal != NULL) {
376 ret = ccache_init_system();
378 krb5_err(kcm_context, 1, ret, "initializing system ccache");
381 if(detach_from_console == -1)
382 detach_from_console = krb5_config_get_bool_default(kcm_context, NULL,
388 max_request = 64 * 1024;