1 /* $NetBSD: default_config.c,v 1.1.1.2 2014/04/24 12:45:27 pettai 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 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->require_preauth = TRUE; 54 c->kdc_warn_pwexpire = 0; 55 c->encode_as_rep_as_tgs_rep = FALSE; 56 c->tgt_use_strongest_session_key = FALSE; 57 c->preauth_use_strongest_session_key = FALSE; 58 c->svc_use_strongest_session_key = FALSE; 59 c->use_strongest_server_key = TRUE; 60 c->check_ticket_addresses = TRUE; 61 c->allow_null_ticket_addresses = TRUE; 62 c->allow_anonymous = FALSE; 63 c->trpolicy = TRPOLICY_ALWAYS_CHECK; 64 c->enable_pkinit = FALSE; 65 c->pkinit_princ_in_cert = TRUE; 66 c->pkinit_require_binding = TRUE; 67 c->db = NULL; 68 c->num_db = 0; 69 c->logf = NULL; 70 71 c->require_preauth = 72 krb5_config_get_bool_default(context, NULL, 73 c->require_preauth, 74 "kdc", "require-preauth", NULL); 75 #ifdef DIGEST 76 c->enable_digest = 77 krb5_config_get_bool_default(context, NULL, 78 FALSE, 79 "kdc", "enable-digest", NULL); 80 81 { 82 const char *digests; 83 84 digests = krb5_config_get_string(context, NULL, 85 "kdc", 86 "digests_allowed", NULL); 87 if (digests == NULL) 88 digests = "ntlm-v2"; 89 c->digests_allowed = parse_flags(digests,_kdc_digestunits, 0); 90 if (c->digests_allowed == -1) { 91 kdc_log(context, c, 0, 92 "unparsable digest units (%s), turning off digest", 93 digests); 94 c->enable_digest = 0; 95 } else if (c->digests_allowed == 0) { 96 kdc_log(context, c, 0, 97 "no digest enable, turning digest off", 98 digests); 99 c->enable_digest = 0; 100 } 101 } 102 #endif 103 104 #ifdef KX509 105 c->enable_kx509 = 106 krb5_config_get_bool_default(context, NULL, 107 FALSE, 108 "kdc", "enable-kx509", NULL); 109 110 if (c->enable_kx509) { 111 c->kx509_template = 112 krb5_config_get_string(context, NULL, 113 "kdc", "kx509_template", NULL); 114 c->kx509_ca = 115 krb5_config_get_string(context, NULL, 116 "kdc", "kx509_ca", NULL); 117 if (c->kx509_ca == NULL || c->kx509_template == NULL) { 118 kdc_log(context, c, 0, 119 "missing kx509 configuration, turning off"); 120 c->enable_kx509 = FALSE; 121 } 122 } 123 #endif 124 125 c->tgt_use_strongest_session_key = 126 krb5_config_get_bool_default(context, NULL, 127 c->tgt_use_strongest_session_key, 128 "kdc", 129 "tgt-use-strongest-session-key", NULL); 130 c->preauth_use_strongest_session_key = 131 krb5_config_get_bool_default(context, NULL, 132 c->preauth_use_strongest_session_key, 133 "kdc", 134 "preauth-use-strongest-session-key", NULL); 135 c->svc_use_strongest_session_key = 136 krb5_config_get_bool_default(context, NULL, 137 c->svc_use_strongest_session_key, 138 "kdc", 139 "svc-use-strongest-session-key", NULL); 140 c->use_strongest_server_key = 141 krb5_config_get_bool_default(context, NULL, 142 c->use_strongest_server_key, 143 "kdc", 144 "use-strongest-server-key", NULL); 145 146 c->check_ticket_addresses = 147 krb5_config_get_bool_default(context, NULL, 148 c->check_ticket_addresses, 149 "kdc", 150 "check-ticket-addresses", NULL); 151 c->allow_null_ticket_addresses = 152 krb5_config_get_bool_default(context, NULL, 153 c->allow_null_ticket_addresses, 154 "kdc", 155 "allow-null-ticket-addresses", NULL); 156 157 c->allow_anonymous = 158 krb5_config_get_bool_default(context, NULL, 159 c->allow_anonymous, 160 "kdc", 161 "allow-anonymous", NULL); 162 163 c->max_datagram_reply_length = 164 krb5_config_get_int_default(context, 165 NULL, 166 1400, 167 "kdc", 168 "max-kdc-datagram-reply-length", 169 NULL); 170 171 { 172 const char *trpolicy_str; 173 174 trpolicy_str = 175 krb5_config_get_string_default(context, NULL, "DEFAULT", "kdc", 176 "transited-policy", NULL); 177 if(strcasecmp(trpolicy_str, "always-check") == 0) { 178 c->trpolicy = TRPOLICY_ALWAYS_CHECK; 179 } else if(strcasecmp(trpolicy_str, "allow-per-principal") == 0) { 180 c->trpolicy = TRPOLICY_ALLOW_PER_PRINCIPAL; 181 } else if(strcasecmp(trpolicy_str, "always-honour-request") == 0) { 182 c->trpolicy = TRPOLICY_ALWAYS_HONOUR_REQUEST; 183 } else if(strcasecmp(trpolicy_str, "DEFAULT") == 0) { 184 /* default */ 185 } else { 186 kdc_log(context, c, 0, 187 "unknown transited-policy: %s, " 188 "reverting to default (always-check)", 189 trpolicy_str); 190 } 191 } 192 193 c->encode_as_rep_as_tgs_rep = 194 krb5_config_get_bool_default(context, NULL, 195 c->encode_as_rep_as_tgs_rep, 196 "kdc", 197 "encode_as_rep_as_tgs_rep", NULL); 198 199 c->kdc_warn_pwexpire = 200 krb5_config_get_time_default (context, NULL, 201 c->kdc_warn_pwexpire, 202 "kdc", "kdc_warn_pwexpire", NULL); 203 204 205 c->enable_pkinit = 206 krb5_config_get_bool_default(context, 207 NULL, 208 c->enable_pkinit, 209 "kdc", 210 "enable-pkinit", 211 NULL); 212 213 214 c->pkinit_kdc_identity = 215 krb5_config_get_string(context, NULL, 216 "kdc", "pkinit_identity", NULL); 217 c->pkinit_kdc_anchors = 218 krb5_config_get_string(context, NULL, 219 "kdc", "pkinit_anchors", NULL); 220 c->pkinit_kdc_cert_pool = 221 krb5_config_get_strings(context, NULL, 222 "kdc", "pkinit_pool", NULL); 223 c->pkinit_kdc_revoke = 224 krb5_config_get_strings(context, NULL, 225 "kdc", "pkinit_revoke", NULL); 226 c->pkinit_kdc_ocsp_file = 227 krb5_config_get_string(context, NULL, 228 "kdc", "pkinit_kdc_ocsp", NULL); 229 c->pkinit_kdc_friendly_name = 230 krb5_config_get_string(context, NULL, 231 "kdc", "pkinit_kdc_friendly_name", NULL); 232 c->pkinit_princ_in_cert = 233 krb5_config_get_bool_default(context, NULL, 234 c->pkinit_princ_in_cert, 235 "kdc", 236 "pkinit_principal_in_certificate", 237 NULL); 238 c->pkinit_require_binding = 239 krb5_config_get_bool_default(context, NULL, 240 c->pkinit_require_binding, 241 "kdc", 242 "pkinit_win2k_require_binding", 243 NULL); 244 c->pkinit_dh_min_bits = 245 krb5_config_get_int_default(context, NULL, 246 0, 247 "kdc", "pkinit_dh_min_bits", NULL); 248 249 *config = c; 250 251 return 0; 252 } 253 254 krb5_error_code 255 krb5_kdc_pkinit_config(krb5_context context, krb5_kdc_configuration *config) 256 { 257 #ifdef PKINIT 258 #ifdef __APPLE__ 259 config->enable_pkinit = 1; 260 261 if (config->pkinit_kdc_identity == NULL) { 262 if (config->pkinit_kdc_friendly_name == NULL) 263 config->pkinit_kdc_friendly_name = 264 strdup("O=System Identity,CN=com.apple.kerberos.kdc"); 265 config->pkinit_kdc_identity = strdup("KEYCHAIN:"); 266 } 267 if (config->pkinit_kdc_anchors == NULL) 268 config->pkinit_kdc_anchors = strdup("KEYCHAIN:"); 269 270 #endif /* __APPLE__ */ 271 272 if (config->enable_pkinit) { 273 if (config->pkinit_kdc_identity == NULL) 274 krb5_errx(context, 1, "pkinit enabled but no identity"); 275 276 if (config->pkinit_kdc_anchors == NULL) 277 krb5_errx(context, 1, "pkinit enabled but no X509 anchors"); 278 279 krb5_kdc_pk_initialize(context, config, 280 config->pkinit_kdc_identity, 281 config->pkinit_kdc_anchors, 282 config->pkinit_kdc_cert_pool, 283 config->pkinit_kdc_revoke); 284 285 } 286 287 return 0; 288 #endif /* PKINIT */ 289 } 290