2 * Copyright (c) 1997-2002 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
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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36 #include <parse_bytes.h>
38 RCSID("$Id: config.c,v 1.43 2002/08/29 01:51:07 assar 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 struct getarg_strings addresses_str; /* addresses to listen on */
69 krb5_addresses explicit_addresses;
75 int enable_kaserver = -1;
79 static int version_flag;
81 static struct getargs args[] = {
83 "config-file", 'c', arg_string, &config_file,
84 "location of config file", "file"
87 "require-preauth", 'p', arg_negative_flag, &require_preauth,
88 "don't require pa-data in as-reqs"
91 "max-request", 0, arg_string, &max_request,
92 "max size for a kdc-request", "size"
96 "database", 'd', arg_string, &databases,
97 "location of database", "database"
100 { "enable-http", 'H', arg_flag, &enable_http, "turn on HTTP support" },
102 { "kerberos4", 0, arg_negative_flag, &enable_v4,
103 "don't respond to kerberos 4 requests"
105 { "524", 0, arg_negative_flag, &enable_524,
106 "don't respond to 524 requests"
109 "v4-realm", 'r', arg_string, &v4_realm,
110 "realm to serve v4-requests for"
113 "kaserver", 'K', arg_flag, &enable_kaserver,
114 "enable kaserver support"
117 { "ports", 'P', arg_string, &port_str,
118 "ports to listen to", "portspec"
121 #if DETACH_IS_DEFAULT
123 "detach", 'D', arg_negative_flag, &detach_from_console,
124 "don't detach from console"
128 "detach", 0 , arg_flag, &detach_from_console,
129 "detach from console"
133 { "addresses", 0, arg_strings, &addresses_str,
134 "addresses to listen on", "list of addresses" },
135 { "help", 'h', arg_flag, &help_flag },
136 { "version", 'v', arg_flag, &version_flag }
139 static int num_args = sizeof(args) / sizeof(args[0]);
144 arg_printusage (args, num_args, NULL, "");
151 const krb5_config_binding *top_binding = NULL;
152 const krb5_config_binding *db_binding;
153 const krb5_config_binding *default_binding = NULL;
154 struct dbinfo *di, **dt;
155 const char *default_dbname = HDB_DEFAULT_DB;
156 const char *default_mkey = HDB_DB_DIR "/m-key";
161 while((db_binding = (const krb5_config_binding *)
162 krb5_config_get_next(context, NULL, &top_binding,
167 p = krb5_config_get_string(context, db_binding, "realm", NULL);
169 if(default_binding) {
170 krb5_warnx(context, "WARNING: more than one realm-less "
171 "database specification");
172 krb5_warnx(context, "WARNING: using the first encountered");
174 default_binding = db_binding;
177 di = calloc(1, sizeof(*di));
178 di->realm = strdup(p);
179 p = krb5_config_get_string(context, db_binding, "dbname", NULL);
181 di->dbname = strdup(p);
182 p = krb5_config_get_string(context, db_binding, "mkey_file", NULL);
184 di->mkey_file = strdup(p);
188 if(default_binding) {
189 di = calloc(1, sizeof(*di));
190 p = krb5_config_get_string(context, default_binding, "dbname", NULL);
192 di->dbname = strdup(p);
195 p = krb5_config_get_string(context, default_binding, "mkey_file", NULL);
197 di->mkey_file = strdup(p);
202 } else if(databases == NULL) {
203 /* if there are none specified, use some default */
204 di = calloc(1, sizeof(*di));
205 di->dbname = strdup(default_dbname);
206 di->mkey_file = strdup(default_mkey);
210 for(di = databases; di; di = di->next) {
211 if(di->dbname == NULL)
212 di->dbname = strdup(default_dbname);
213 if(di->mkey_file == NULL) {
214 p = strrchr(di->dbname, '.');
215 if(p == NULL || strchr(p, '/') != NULL)
216 /* final pathname component does not contain a . */
217 asprintf(&di->mkey_file, "%s.mkey", di->dbname);
219 /* the filename is something.else, replace .else with
221 asprintf(&di->mkey_file, "%.*s.mkey",
222 (int)(p - di->dbname), di->dbname);
228 add_one_address (const char *str, int first)
233 ret = krb5_parse_address (context, str, &tmp);
235 krb5_err (context, 1, ret, "parse_address `%s'", str);
237 krb5_copy_addresses(context, &tmp, &explicit_addresses);
239 krb5_append_addresses(context, &explicit_addresses, &tmp);
240 krb5_free_addresses (context, &tmp);
244 configure(int argc, char **argv)
250 while((e = getarg(args, num_args, argc, argv, &optind)))
251 warnx("error at argument `%s'", argv[optind]);
271 if(config_file == NULL)
272 config_file = _PATH_KDC_CONF;
273 asprintf(&tmp, "%s:%s", config_file, krb5_config_file);
275 krb5_errx(context, 1, "out of memory");
277 krb5_config_file = tmp;
279 ret = krb5_get_default_config_files(&files);
281 krb5_err(context, 1, ret, "reading configuration files");
282 ret = krb5_set_config_files(context, files);
283 krb5_free_config_files(files);
285 krb5_err(context, 1, ret, "reading configuration files");
291 max_request = parse_bytes(max_request_str, NULL);
294 if(max_request == 0){
295 p = krb5_config_get_string (context,
301 max_request = parse_bytes(p, NULL);
304 if(require_preauth == -1)
305 require_preauth = krb5_config_get_bool(context, NULL, "kdc",
306 "require-preauth", NULL);
308 if(port_str == NULL){
309 p = krb5_config_get_string(context, NULL, "kdc", "ports", NULL);
311 port_str = strdup(p);
314 explicit_addresses.len = 0;
316 if (addresses_str.num_strings) {
319 for (i = 0; i < addresses_str.num_strings; ++i)
320 add_one_address (addresses_str.strings[i], i == 0);
321 free_getarg_strings (&addresses_str);
323 char **foo = krb5_config_get_strings (context, NULL,
324 "kdc", "addresses", NULL);
327 add_one_address (*foo++, TRUE);
329 add_one_address (*foo++, FALSE);
335 enable_v4 = krb5_config_get_bool_default(context, NULL, TRUE, "kdc",
336 "enable-kerberos4", NULL);
338 enable_524 = krb5_config_get_bool_default(context, NULL, enable_v4,
339 "kdc", "enable-524", NULL);
342 if(enable_http == -1)
343 enable_http = krb5_config_get_bool(context, NULL, "kdc",
344 "enable-http", NULL);
345 check_ticket_addresses =
346 krb5_config_get_bool_default(context, NULL, TRUE, "kdc",
347 "check-ticket-addresses", NULL);
348 allow_null_ticket_addresses =
349 krb5_config_get_bool_default(context, NULL, TRUE, "kdc",
350 "allow-null-ticket-addresses", NULL);
353 krb5_config_get_bool(context, NULL, "kdc",
354 "allow-anonymous", NULL);
356 if(v4_realm == NULL){
357 p = krb5_config_get_string (context, NULL,
362 v4_realm = strdup(p);
364 if (enable_kaserver == -1)
365 enable_kaserver = krb5_config_get_bool_default(context, NULL, FALSE,
371 encode_as_rep_as_tgs_rep = krb5_config_get_bool(context, NULL, "kdc",
372 "encode_as_rep_as_tgs_rep",
375 kdc_warn_pwexpire = krb5_config_get_time (context, NULL,
381 if(detach_from_console == -1)
382 detach_from_console = krb5_config_get_bool_default(context, NULL,
389 max_request = 64 * 1024;
390 if(require_preauth == -1)
392 if (port_str == NULL)
395 if(v4_realm == NULL){
396 v4_realm = malloc(40); /* REALM_SZ */
397 krb_get_lrealm(v4_realm, 1);