1 /* $NetBSD: default_config.c,v 1.3 2023/06/19 21:41:41 christos Exp $ */
2
3 /*
4 * Copyright (c) 1997-2007 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 *
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * 3. Neither the name of the Institute nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #include "kdc_locl.h"
39 #include <krb5/getarg.h>
40 #include <krb5/parse_bytes.h>
41
42 krb5_error_code
krb5_kdc_get_config(krb5_context context,krb5_kdc_configuration ** config)43 krb5_kdc_get_config(krb5_context context, krb5_kdc_configuration **config)
44 {
45 krb5_kdc_configuration *c;
46
47 c = calloc(1, sizeof(*c));
48 if (c == NULL) {
49 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
50 return ENOMEM;
51 }
52
53 c->num_kdc_processes = -1;
54 c->require_preauth = TRUE;
55 c->kdc_warn_pwexpire = 0;
56 c->encode_as_rep_as_tgs_rep = FALSE;
57 c->tgt_use_strongest_session_key = FALSE;
58 c->preauth_use_strongest_session_key = FALSE;
59 c->svc_use_strongest_session_key = FALSE;
60 c->use_strongest_server_key = TRUE;
61 c->check_ticket_addresses = TRUE;
62 c->allow_null_ticket_addresses = TRUE;
63 c->allow_anonymous = FALSE;
64 c->historical_anon_realm = FALSE;
65 c->strict_nametypes = FALSE;
66 c->trpolicy = TRPOLICY_ALWAYS_CHECK;
67 c->enable_pkinit = FALSE;
68 c->pkinit_princ_in_cert = TRUE;
69 c->pkinit_require_binding = TRUE;
70 c->db = NULL;
71 c->num_db = 0;
72 c->logf = NULL;
73
74 c->num_kdc_processes =
75 krb5_config_get_int_default(context, NULL, c->num_kdc_processes,
76 "kdc", "num-kdc-processes", NULL);
77
78 c->require_preauth =
79 krb5_config_get_bool_default(context, NULL,
80 c->require_preauth,
81 "kdc", "require-preauth", NULL);
82 #ifdef DIGEST
83 c->enable_digest =
84 krb5_config_get_bool_default(context, NULL,
85 FALSE,
86 "kdc", "enable-digest", NULL);
87
88 {
89 const char *digests;
90
91 digests = krb5_config_get_string(context, NULL,
92 "kdc",
93 "digests_allowed", NULL);
94 if (digests == NULL)
95 digests = "ntlm-v2";
96 c->digests_allowed = parse_flags(digests,_kdc_digestunits, 0);
97 if (c->digests_allowed == -1) {
98 kdc_log(context, c, 0,
99 "unparsable digest units (%s), turning off digest",
100 digests);
101 c->enable_digest = 0;
102 } else if (c->digests_allowed == 0) {
103 kdc_log(context, c, 0,
104 "no digest enable, turning digest off",
105 digests);
106 c->enable_digest = 0;
107 }
108 }
109 #endif
110
111 #ifdef KX509
112 c->enable_kx509 =
113 krb5_config_get_bool_default(context, NULL,
114 FALSE,
115 "kdc", "enable-kx509", NULL);
116
117 if (c->enable_kx509) {
118 c->kx509_template =
119 krb5_config_get_string(context, NULL,
120 "kdc", "kx509_template", NULL);
121 c->kx509_ca =
122 krb5_config_get_string(context, NULL,
123 "kdc", "kx509_ca", NULL);
124 if (c->kx509_ca == NULL || c->kx509_template == NULL) {
125 kdc_log(context, c, 0,
126 "missing kx509 configuration, turning off");
127 c->enable_kx509 = FALSE;
128 }
129 }
130 #endif
131
132 c->tgt_use_strongest_session_key =
133 krb5_config_get_bool_default(context, NULL,
134 c->tgt_use_strongest_session_key,
135 "kdc",
136 "tgt-use-strongest-session-key", NULL);
137 c->preauth_use_strongest_session_key =
138 krb5_config_get_bool_default(context, NULL,
139 c->preauth_use_strongest_session_key,
140 "kdc",
141 "preauth-use-strongest-session-key", NULL);
142 c->svc_use_strongest_session_key =
143 krb5_config_get_bool_default(context, NULL,
144 c->svc_use_strongest_session_key,
145 "kdc",
146 "svc-use-strongest-session-key", NULL);
147 c->use_strongest_server_key =
148 krb5_config_get_bool_default(context, NULL,
149 c->use_strongest_server_key,
150 "kdc",
151 "use-strongest-server-key", NULL);
152
153 c->check_ticket_addresses =
154 krb5_config_get_bool_default(context, NULL,
155 c->check_ticket_addresses,
156 "kdc",
157 "check-ticket-addresses", NULL);
158 c->allow_null_ticket_addresses =
159 krb5_config_get_bool_default(context, NULL,
160 c->allow_null_ticket_addresses,
161 "kdc",
162 "allow-null-ticket-addresses", NULL);
163
164 c->allow_anonymous =
165 krb5_config_get_bool_default(context, NULL,
166 c->allow_anonymous,
167 "kdc",
168 "allow-anonymous", NULL);
169
170 c->historical_anon_realm =
171 krb5_config_get_bool_default(context, NULL,
172 c->historical_anon_realm,
173 "kdc",
174 "historical_anon_realm", NULL);
175
176 c->strict_nametypes =
177 krb5_config_get_bool_default(context, NULL,
178 c->strict_nametypes,
179 "kdc",
180 "strict-nametypes", NULL);
181
182 c->max_datagram_reply_length =
183 krb5_config_get_int_default(context,
184 NULL,
185 1400,
186 "kdc",
187 "max-kdc-datagram-reply-length",
188 NULL);
189
190 {
191 const char *trpolicy_str;
192
193 trpolicy_str =
194 krb5_config_get_string_default(context, NULL, "DEFAULT", "kdc",
195 "transited-policy", NULL);
196 if(strcasecmp(trpolicy_str, "always-check") == 0) {
197 c->trpolicy = TRPOLICY_ALWAYS_CHECK;
198 } else if(strcasecmp(trpolicy_str, "allow-per-principal") == 0) {
199 c->trpolicy = TRPOLICY_ALLOW_PER_PRINCIPAL;
200 } else if(strcasecmp(trpolicy_str, "always-honour-request") == 0) {
201 c->trpolicy = TRPOLICY_ALWAYS_HONOUR_REQUEST;
202 } else if(strcasecmp(trpolicy_str, "DEFAULT") == 0) {
203 /* default */
204 } else {
205 kdc_log(context, c, 0,
206 "unknown transited-policy: %s, "
207 "reverting to default (always-check)",
208 trpolicy_str);
209 }
210 }
211
212 c->encode_as_rep_as_tgs_rep =
213 krb5_config_get_bool_default(context, NULL,
214 c->encode_as_rep_as_tgs_rep,
215 "kdc",
216 "encode_as_rep_as_tgs_rep", NULL);
217
218 c->kdc_warn_pwexpire =
219 krb5_config_get_time_default (context, NULL,
220 c->kdc_warn_pwexpire,
221 "kdc", "kdc_warn_pwexpire", NULL);
222
223
224 c->enable_pkinit =
225 krb5_config_get_bool_default(context,
226 NULL,
227 c->enable_pkinit,
228 "kdc",
229 "enable-pkinit",
230 NULL);
231
232
233 c->pkinit_kdc_identity =
234 krb5_config_get_string(context, NULL,
235 "kdc", "pkinit_identity", NULL);
236 c->pkinit_kdc_anchors =
237 krb5_config_get_string(context, NULL,
238 "kdc", "pkinit_anchors", NULL);
239 c->pkinit_kdc_cert_pool =
240 krb5_config_get_strings(context, NULL,
241 "kdc", "pkinit_pool", NULL);
242 c->pkinit_kdc_revoke =
243 krb5_config_get_strings(context, NULL,
244 "kdc", "pkinit_revoke", NULL);
245 c->pkinit_kdc_ocsp_file =
246 krb5_config_get_string(context, NULL,
247 "kdc", "pkinit_kdc_ocsp", NULL);
248 c->pkinit_kdc_friendly_name =
249 krb5_config_get_string(context, NULL,
250 "kdc", "pkinit_kdc_friendly_name", NULL);
251 c->pkinit_princ_in_cert =
252 krb5_config_get_bool_default(context, NULL,
253 c->pkinit_princ_in_cert,
254 "kdc",
255 "pkinit_principal_in_certificate",
256 NULL);
257 c->pkinit_require_binding =
258 krb5_config_get_bool_default(context, NULL,
259 c->pkinit_require_binding,
260 "kdc",
261 "pkinit_win2k_require_binding",
262 NULL);
263 c->pkinit_dh_min_bits =
264 krb5_config_get_int_default(context, NULL,
265 0,
266 "kdc", "pkinit_dh_min_bits", NULL);
267
268 *config = c;
269
270 return 0;
271 }
272
273 krb5_error_code
krb5_kdc_pkinit_config(krb5_context context,krb5_kdc_configuration * config)274 krb5_kdc_pkinit_config(krb5_context context, krb5_kdc_configuration *config)
275 {
276 #ifdef PKINIT
277 #ifdef __APPLE__
278 config->enable_pkinit = 1;
279
280 if (config->pkinit_kdc_identity == NULL) {
281 if (config->pkinit_kdc_friendly_name == NULL)
282 config->pkinit_kdc_friendly_name =
283 strdup("O=System Identity,CN=com.apple.kerberos.kdc");
284 config->pkinit_kdc_identity = strdup("KEYCHAIN:");
285 }
286 if (config->pkinit_kdc_anchors == NULL)
287 config->pkinit_kdc_anchors = strdup("KEYCHAIN:");
288
289 #endif /* __APPLE__ */
290
291 if (config->enable_pkinit) {
292 if (config->pkinit_kdc_identity == NULL)
293 krb5_errx(context, 1, "pkinit enabled but no identity");
294
295 if (config->pkinit_kdc_anchors == NULL)
296 krb5_errx(context, 1, "pkinit enabled but no X509 anchors");
297
298 krb5_kdc_pk_initialize(context, config,
299 config->pkinit_kdc_identity,
300 config->pkinit_kdc_anchors,
301 config->pkinit_kdc_cert_pool,
302 config->pkinit_kdc_revoke);
303
304 }
305
306 return 0;
307 #endif /* PKINIT */
308 }
309