2 * Copyright (c) 1997-2003 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
36 #include <parse_bytes.h>
38 RCSID("$Id: config.c,v 1.46.2.2 2003/10/27 11:06:52 joda Exp $");
40 static const char *config_file; /* location of kdc config file */
42 int require_preauth = -1; /* 1 == require preauth for all principals */
44 size_t max_request; /* maximal size of a request */
46 static char *max_request_str; /* `max_request' as a string */
48 time_t kdc_warn_pwexpire; /* time before expiration to print a warning */
50 struct dbinfo *databases;
57 int detach_from_console = -1;
58 #define DETACH_IS_DEFAULT FALSE
62 krb5_boolean encode_as_rep_as_tgs_rep; /* bug compatibility */
64 krb5_boolean check_ticket_addresses;
65 krb5_boolean allow_null_ticket_addresses;
66 krb5_boolean allow_anonymous;
68 static const char *trpolicy_str;
70 static struct getarg_strings addresses_str; /* addresses to listen on */
71 krb5_addresses explicit_addresses;
76 int enable_kaserver = -1;
80 int enable_v4_cross_realm = -1;
83 static int version_flag;
85 static struct getargs args[] = {
87 "config-file", 'c', arg_string, &config_file,
88 "location of config file", "file"
91 "require-preauth", 'p', arg_negative_flag, &require_preauth,
92 "don't require pa-data in as-reqs"
95 "max-request", 0, arg_string, &max_request,
96 "max size for a kdc-request", "size"
100 "database", 'd', arg_string, &databases,
101 "location of database", "database"
104 { "enable-http", 'H', arg_flag, &enable_http, "turn on HTTP support" },
105 { "524", 0, arg_negative_flag, &enable_524,
106 "don't respond to 524 requests"
110 "kaserver", 'K', arg_flag, &enable_kaserver,
111 "enable kaserver support"
113 { "kerberos4", 0, arg_flag, &enable_v4,
114 "respond to kerberos 4 requests"
117 "v4-realm", 'r', arg_string, &v4_realm,
118 "realm to serve v4-requests for"
121 { "kerberos4-cross-realm", 0, arg_flag,
122 &enable_v4_cross_realm,
123 "respond to kerberos 4 requests from foreign realms"
125 { "ports", 'P', arg_string, &port_str,
126 "ports to listen to", "portspec"
129 #if DETACH_IS_DEFAULT
131 "detach", 'D', arg_negative_flag, &detach_from_console,
132 "don't detach from console"
136 "detach", 0 , arg_flag, &detach_from_console,
137 "detach from console"
141 { "addresses", 0, arg_strings, &addresses_str,
142 "addresses to listen on", "list of addresses" },
143 { "help", 'h', arg_flag, &help_flag },
144 { "version", 'v', arg_flag, &version_flag }
147 static int num_args = sizeof(args) / sizeof(args[0]);
152 arg_printusage (args, num_args, NULL, "");
159 const krb5_config_binding *top_binding = NULL;
160 const krb5_config_binding *db_binding;
161 const krb5_config_binding *default_binding = NULL;
162 struct dbinfo *di, **dt;
163 const char *default_dbname = HDB_DEFAULT_DB;
164 const char *default_mkey = HDB_DB_DIR "/m-key";
169 while((db_binding = (const krb5_config_binding *)
170 krb5_config_get_next(context, NULL, &top_binding,
175 p = krb5_config_get_string(context, db_binding, "realm", NULL);
177 if(default_binding) {
178 krb5_warnx(context, "WARNING: more than one realm-less "
179 "database specification");
180 krb5_warnx(context, "WARNING: using the first encountered");
182 default_binding = db_binding;
185 di = calloc(1, sizeof(*di));
186 di->realm = strdup(p);
187 p = krb5_config_get_string(context, db_binding, "dbname", NULL);
189 di->dbname = strdup(p);
190 p = krb5_config_get_string(context, db_binding, "mkey_file", NULL);
192 di->mkey_file = strdup(p);
196 if(default_binding) {
197 di = calloc(1, sizeof(*di));
198 p = krb5_config_get_string(context, default_binding, "dbname", NULL);
200 di->dbname = strdup(p);
203 p = krb5_config_get_string(context, default_binding, "mkey_file", NULL);
205 di->mkey_file = strdup(p);
210 } else if(databases == NULL) {
211 /* if there are none specified, use some default */
212 di = calloc(1, sizeof(*di));
213 di->dbname = strdup(default_dbname);
214 di->mkey_file = strdup(default_mkey);
218 for(di = databases; di; di = di->next) {
219 if(di->dbname == NULL)
220 di->dbname = strdup(default_dbname);
221 if(di->mkey_file == NULL) {
222 p = strrchr(di->dbname, '.');
223 if(p == NULL || strchr(p, '/') != NULL)
224 /* final pathname component does not contain a . */
225 asprintf(&di->mkey_file, "%s.mkey", di->dbname);
227 /* the filename is something.else, replace .else with
229 asprintf(&di->mkey_file, "%.*s.mkey",
230 (int)(p - di->dbname), di->dbname);
236 add_one_address (const char *str, int first)
241 ret = krb5_parse_address (context, str, &tmp);
243 krb5_err (context, 1, ret, "parse_address `%s'", str);
245 krb5_copy_addresses(context, &tmp, &explicit_addresses);
247 krb5_append_addresses(context, &explicit_addresses, &tmp);
248 krb5_free_addresses (context, &tmp);
252 configure(int argc, char **argv)
258 while((e = getarg(args, num_args, argc, argv, &optind)))
259 warnx("error at argument `%s'", argv[optind]);
279 if(config_file == NULL)
280 config_file = _PATH_KDC_CONF;
281 asprintf(&tmp, "%s:%s", config_file, krb5_config_file);
283 krb5_errx(context, 1, "out of memory");
285 krb5_config_file = tmp;
287 ret = krb5_get_default_config_files(&files);
289 krb5_err(context, 1, ret, "reading configuration files");
290 ret = krb5_set_config_files(context, files);
291 krb5_free_config_files(files);
293 krb5_err(context, 1, ret, "reading configuration files");
299 max_request = parse_bytes(max_request_str, NULL);
301 if(max_request == 0){
302 p = krb5_config_get_string (context,
308 max_request = parse_bytes(p, NULL);
311 if(require_preauth == -1)
312 require_preauth = krb5_config_get_bool(context, NULL, "kdc",
313 "require-preauth", NULL);
315 if(port_str == NULL){
316 p = krb5_config_get_string(context, NULL, "kdc", "ports", NULL);
318 port_str = strdup(p);
321 explicit_addresses.len = 0;
323 if (addresses_str.num_strings) {
326 for (i = 0; i < addresses_str.num_strings; ++i)
327 add_one_address (addresses_str.strings[i], i == 0);
328 free_getarg_strings (&addresses_str);
330 char **foo = krb5_config_get_strings (context, NULL,
331 "kdc", "addresses", NULL);
334 add_one_address (*foo++, TRUE);
336 add_one_address (*foo++, FALSE);
342 enable_v4 = krb5_config_get_bool_default(context, NULL, FALSE, "kdc",
343 "enable-kerberos4", NULL);
347 if(enable_v4_cross_realm == -1)
348 enable_v4_cross_realm =
349 krb5_config_get_bool_default(context, NULL,
351 "enable-kerberos4-cross-realm",
354 enable_524 = krb5_config_get_bool_default(context, NULL, enable_v4,
355 "kdc", "enable-524", NULL);
357 if(enable_http == -1)
358 enable_http = krb5_config_get_bool(context, NULL, "kdc",
359 "enable-http", NULL);
360 check_ticket_addresses =
361 krb5_config_get_bool_default(context, NULL, TRUE, "kdc",
362 "check-ticket-addresses", NULL);
363 allow_null_ticket_addresses =
364 krb5_config_get_bool_default(context, NULL, TRUE, "kdc",
365 "allow-null-ticket-addresses", NULL);
368 krb5_config_get_bool(context, NULL, "kdc",
369 "allow-anonymous", NULL);
371 krb5_config_get_string_default(context, NULL, "always-check", "kdc",
372 "transited-policy", NULL);
373 if(strcasecmp(trpolicy_str, "always-check") == 0)
374 trpolicy = TRPOLICY_ALWAYS_CHECK;
375 else if(strcasecmp(trpolicy_str, "allow-per-principal") == 0)
376 trpolicy = TRPOLICY_ALLOW_PER_PRINCIPAL;
377 else if(strcasecmp(trpolicy_str, "always-honour-request") == 0)
378 trpolicy = TRPOLICY_ALWAYS_HONOUR_REQUEST;
380 kdc_log(0, "unknown transited-policy: %s, reverting to always-check",
382 trpolicy = TRPOLICY_ALWAYS_CHECK;
385 krb5_config_get_bool_default(context, NULL, TRUE, "kdc",
386 "enforce-transited-policy", NULL);
388 if(v4_realm == NULL){
389 p = krb5_config_get_string (context, NULL,
394 v4_realm = strdup(p);
395 if (v4_realm == NULL)
396 krb5_errx(context, 1, "out of memory");
399 if (enable_kaserver == -1)
400 enable_kaserver = krb5_config_get_bool_default(context, NULL, FALSE,
406 encode_as_rep_as_tgs_rep = krb5_config_get_bool(context, NULL, "kdc",
407 "encode_as_rep_as_tgs_rep",
410 kdc_warn_pwexpire = krb5_config_get_time (context, NULL,
416 if(detach_from_console == -1)
417 detach_from_console = krb5_config_get_bool_default(context, NULL,
424 max_request = 64 * 1024;
425 if(require_preauth == -1)
427 if (port_str == NULL)
430 if(v4_realm == NULL){
431 v4_realm = malloc(40); /* REALM_SZ */
432 if (v4_realm == NULL)
433 krb5_errx(context, 1, "out of memory");
434 krb_get_lrealm(v4_realm, 1);