source: heimdal/trunk/kdc/config.c@ 4

Last change on this file since 4 was 1, checked in by Paul Smedley, 10 years ago

Initial commit of Heimdal 1.5.3
File size: 8.0 KB
Line 
1/*
2 * Copyright (c) 1997-2007 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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.
18 *
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.
22 *
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
33 * SUCH DAMAGE.
34 */
35
36#include "kdc_locl.h"
37#include <getarg.h>
38#include <parse_bytes.h>
39
40struct dbinfo {
41 char *realm;
42 char *dbname;
43 char *mkey_file;
44 struct dbinfo *next;
45};
46
47static char *config_file; /* location of kdc config file */
48
49static int require_preauth = -1; /* 1 == require preauth for all principals */
50static char *max_request_str; /* `max_request' as a string */
51
52static int disable_des = -1;
53
54static int builtin_hdb_flag;
55static int help_flag;
56static int version_flag;
57
58static struct getarg_strings addresses_str; /* addresses to listen on */
59
60char *runas_string;
61char *chroot_string;
62
63
64static struct getargs args[] = {
65 {
66 "config-file", 'c', arg_string, &config_file,
67 "location of config file", "file"
68 },
69 {
70 "require-preauth", 'p', arg_negative_flag, &require_preauth,
71 "don't require pa-data in as-reqs", NULL
72 },
73 {
74 "max-request", 0, arg_string, &max_request_str,
75 "max size for a kdc-request", "size"
76 },
77 { "enable-http", 'H', arg_flag, &enable_http, "turn on HTTP support",
78 NULL },
79 { "ports", 'P', arg_string, rk_UNCONST(&port_str),
80 "ports to listen to", "portspec"
81 },
82#ifdef SUPPORT_DETACH
83#if DETACH_IS_DEFAULT
84 {
85 "detach", 'D', arg_negative_flag, &detach_from_console,
86 "don't detach from console", NULL
87 },
88#else
89 {
90 "detach", 0 , arg_flag, &detach_from_console,
91 "detach from console", NULL
92 },
93#endif
94#endif
95 { "addresses", 0, arg_strings, &addresses_str,
96 "addresses to listen on", "list of addresses" },
97 { "disable-des", 0, arg_flag, &disable_des,
98 "disable DES", NULL },
99 { "builtin-hdb", 0, arg_flag, &builtin_hdb_flag,
100 "list builtin hdb backends", NULL},
101 { "runas-user", 0, arg_string, &runas_string,
102 "run as this user when connected to network", NULL
103 },
104 { "chroot", 0, arg_string, &chroot_string,
105 "chroot directory to run in", NULL
106 },
107 { "help", 'h', arg_flag, &help_flag, NULL, NULL },
108 { "version", 'v', arg_flag, &version_flag, NULL, NULL }
109};
110
111static int num_args = sizeof(args) / sizeof(args[0]);
112
113static void
114usage(int ret)
115{
116 arg_printusage (args, num_args, NULL, "");
117 exit (ret);
118}
119
120static void
121add_one_address (krb5_context context, const char *str, int first)
122{
123 krb5_error_code ret;
124 krb5_addresses tmp;
125
126 ret = krb5_parse_address (context, str, &tmp);
127 if (ret)
128 krb5_err (context, 1, ret, "parse_address `%s'", str);
129 if (first)
130 krb5_copy_addresses(context, &tmp, &explicit_addresses);
131 else
132 krb5_append_addresses(context, &explicit_addresses, &tmp);
133 krb5_free_addresses (context, &tmp);
134}
135
136krb5_kdc_configuration *
137configure(krb5_context context, int argc, char **argv)
138{
139 krb5_kdc_configuration *config;
140 krb5_error_code ret;
141 int optidx = 0;
142 const char *p;
143
144 while(getarg(args, num_args, argc, argv, &optidx))
145 warnx("error at argument `%s'", argv[optidx]);
146
147 if(help_flag)
148 usage (0);
149
150 if (version_flag) {
151 print_version(NULL);
152 exit(0);
153 }
154
155 if (builtin_hdb_flag) {
156 char *list;
157 ret = hdb_list_builtin(context, &list);
158 if (ret)
159 krb5_err(context, 1, ret, "listing builtin hdb backends");
160 printf("builtin hdb backends: %s\n", list);
161 free(list);
162 exit(0);
163 }
164
165 argc -= optidx;
166 argv += optidx;
167
168 if (argc != 0)
169 usage(1);
170
171 {
172 char **files;
173
174 if (config_file == NULL) {
175 asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context));
176 if (config_file == NULL)
177 errx(1, "out of memory");
178 }
179
180 ret = krb5_prepend_config_files_default(config_file, &files);
181 if (ret)
182 krb5_err(context, 1, ret, "getting configuration files");
183
184 ret = krb5_set_config_files(context, files);
185 krb5_free_config_files(files);
186 if(ret)
187 krb5_err(context, 1, ret, "reading configuration files");
188 }
189
190 ret = krb5_kdc_get_config(context, &config);
191 if (ret)
192 krb5_err(context, 1, ret, "krb5_kdc_default_config");
193
194 kdc_openlog(context, "kdc", config);
195
196 ret = krb5_kdc_set_dbinfo(context, config);
197 if (ret)
198 krb5_err(context, 1, ret, "krb5_kdc_set_dbinfo");
199
200 if(max_request_str)
201 max_request_tcp = max_request_udp = parse_bytes(max_request_str, NULL);
202
203 if(max_request_tcp == 0){
204 p = krb5_config_get_string (context,
205 NULL,
206 "kdc",
207 "max-request",
208 NULL);
209 if(p)
210 max_request_tcp = max_request_udp = parse_bytes(p, NULL);
211 }
212
213 if(require_preauth != -1)
214 config->require_preauth = require_preauth;
215
216 if(port_str == NULL){
217 p = krb5_config_get_string(context, NULL, "kdc", "ports", NULL);
218 if (p != NULL)
219 port_str = strdup(p);
220 }
221
222 explicit_addresses.len = 0;
223
224 if (addresses_str.num_strings) {
225 int i;
226
227 for (i = 0; i < addresses_str.num_strings; ++i)
228 add_one_address (context, addresses_str.strings[i], i == 0);
229 free_getarg_strings (&addresses_str);
230 } else {
231 char **foo = krb5_config_get_strings (context, NULL,
232 "kdc", "addresses", NULL);
233
234 if (foo != NULL) {
235 add_one_address (context, *foo++, TRUE);
236 while (*foo)
237 add_one_address (context, *foo++, FALSE);
238 }
239 }
240
241 if(enable_http == -1)
242 enable_http = krb5_config_get_bool(context, NULL, "kdc",
243 "enable-http", NULL);
244
245 if(request_log == NULL)
246 request_log = krb5_config_get_string(context, NULL,
247 "kdc",
248 "kdc-request-log",
249 NULL);
250
251 if (krb5_config_get_string(context, NULL, "kdc",
252 "enforce-transited-policy", NULL))
253 krb5_errx(context, 1, "enforce-transited-policy deprecated, "
254 "use [kdc]transited-policy instead");
255
256#ifdef SUPPORT_DETACH
257 if(detach_from_console == -1)
258 detach_from_console = krb5_config_get_bool_default(context, NULL,
259 DETACH_IS_DEFAULT,
260 "kdc",
261 "detach", NULL);
262#endif /* SUPPORT_DETACH */
263
264 if(max_request_tcp == 0)
265 max_request_tcp = 64 * 1024;
266 if(max_request_udp == 0)
267 max_request_udp = 64 * 1024;
268
269 if (port_str == NULL)
270 port_str = "+";
271
272 if(disable_des == -1)
273 disable_des = krb5_config_get_bool_default(context, NULL,
274 FALSE,
275 "kdc",
276 "disable-des", NULL);
277 if(disable_des) {
278 krb5_enctype_disable(context, ETYPE_DES_CBC_CRC);
279 krb5_enctype_disable(context, ETYPE_DES_CBC_MD4);
280 krb5_enctype_disable(context, ETYPE_DES_CBC_MD5);
281 krb5_enctype_disable(context, ETYPE_DES_CBC_NONE);
282 krb5_enctype_disable(context, ETYPE_DES_CFB64_NONE);
283 krb5_enctype_disable(context, ETYPE_DES_PCBC_NONE);
284 }
285
286 krb5_kdc_windc_init(context);
287
288 krb5_kdc_pkinit_config(context, config);
289
290 return config;
291}
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