libeap/src/ap/authsrv.c

   1 /*
   2  * Authentication server setup
   3  * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10
  11 #include "utils/common.h"
  12 #include "crypto/tls.h"
  13 #include "eap_server/eap.h"
  14 #include "eap_server/eap_sim_db.h"
  15 #include "eapol_auth/eapol_auth_sm.h"
  16 #include "radius/radius_server.h"
  17 #include "hostapd.h"
  18 #include "ap_config.h"
  19 #include "sta_info.h"
  20 #include "authsrv.h"
  21
  22
  23 #if defined(EAP_SERVER_SIM) || defined(EAP_SERVER_AKA)
  24 #define EAP_SIM_DB
  25 #endif /* EAP_SERVER_SIM || EAP_SERVER_AKA */
  26
  27
  28 #ifdef EAP_SIM_DB
  29 static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
  30                                  struct sta_info *sta, void *ctx)
  31 {
  32         if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
  33                 return 1;
  34         return 0;
  35 }
  36
  37
  38 static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
  39 {
  40         struct hostapd_data *hapd = ctx;
  41         if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0) {
  42 #ifdef RADIUS_SERVER
  43                 radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
  44 #endif /* RADIUS_SERVER */
  45         }
  46 }
  47 #endif /* EAP_SIM_DB */
  48
  49
  50 #ifdef RADIUS_SERVER
  51
  52 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
  53                                        size_t identity_len, int phase2,
  54                                        struct eap_user *user)
  55 {
  56         const struct hostapd_eap_user *eap_user;
  57         int i;
  58         int rv = -1;
  59
  60         eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
  61         if (eap_user == NULL)
  62                 goto out;
  63
  64         if (user == NULL)
  65                 return 0;
  66
  67         os_memset(user, 0, sizeof(*user));
  68         for (i = 0; i < EAP_MAX_METHODS; i++) {
  69                 user->methods[i].vendor = eap_user->methods[i].vendor;
  70                 user->methods[i].method = eap_user->methods[i].method;
  71         }
  72
  73         if (eap_user->password) {
  74                 user->password = os_malloc(eap_user->password_len);
  75                 if (user->password == NULL)
  76                         goto out;
  77                 os_memcpy(user->password, eap_user->password,
  78                           eap_user->password_len);
  79                 user->password_len = eap_user->password_len;
  80                 user->password_hash = eap_user->password_hash;
  81         }
  82         user->force_version = eap_user->force_version;
  83         user->macacl = eap_user->macacl;
  84         user->ttls_auth = eap_user->ttls_auth;
  85         user->remediation = eap_user->remediation;
  86         user->accept_attr = eap_user->accept_attr;
  87         rv = 0;
  88
  89 out:
  90         if (rv)
  91                 wpa_printf(MSG_DEBUG, "%s: Failed to find user", __func__);
  92
  93         return rv;
  94 }
  95
  96
  97 static int hostapd_setup_radius_srv(struct hostapd_data *hapd)
  98 {
  99         struct radius_server_conf srv;
 100         struct hostapd_bss_config *conf = hapd->conf;
 101         os_memset(&srv, 0, sizeof(srv));
 102         srv.client_file = conf->radius_server_clients;
 103         srv.auth_port = conf->radius_server_auth_port;
 104         srv.acct_port = conf->radius_server_acct_port;
 105         srv.conf_ctx = hapd;
 106         srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
 107         srv.ssl_ctx = hapd->ssl_ctx;
 108         srv.msg_ctx = hapd->msg_ctx;
 109         srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
 110         srv.eap_fast_a_id = conf->eap_fast_a_id;
 111         srv.eap_fast_a_id_len = conf->eap_fast_a_id_len;
 112         srv.eap_fast_a_id_info = conf->eap_fast_a_id_info;
 113         srv.eap_fast_prov = conf->eap_fast_prov;
 114         srv.pac_key_lifetime = conf->pac_key_lifetime;
 115         srv.pac_key_refresh_time = conf->pac_key_refresh_time;
 116         srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
 117         srv.tnc = conf->tnc;
 118         srv.wps = hapd->wps;
 119         srv.ipv6 = conf->radius_server_ipv6;
 120         srv.get_eap_user = hostapd_radius_get_eap_user;
 121         srv.eap_req_id_text = conf->eap_req_id_text;
 122         srv.eap_req_id_text_len = conf->eap_req_id_text_len;
 123         srv.pwd_group = conf->pwd_group;
 124         srv.server_id = conf->server_id ? conf->server_id : "hostapd";
 125         srv.sqlite_file = conf->eap_user_sqlite;
 126 #ifdef CONFIG_RADIUS_TEST
 127         srv.dump_msk_file = conf->dump_msk_file;
 128 #endif /* CONFIG_RADIUS_TEST */
 129 #ifdef CONFIG_HS20
 130         srv.subscr_remediation_url = conf->subscr_remediation_url;
 131         srv.subscr_remediation_method = conf->subscr_remediation_method;
 132 #endif /* CONFIG_HS20 */
 133         srv.erp = conf->eap_server_erp;
 134         srv.erp_domain = conf->erp_domain;
 135         srv.tls_session_lifetime = conf->tls_session_lifetime;
 136
 137         hapd->radius_srv = radius_server_init(&srv);
 138         if (hapd->radius_srv == NULL) {
 139                 wpa_printf(MSG_ERROR, "RADIUS server initialization failed.");
 140                 return -1;
 141         }
 142
 143         return 0;
 144 }
 145
 146 #endif /* RADIUS_SERVER */
 147
 148
 149 int authsrv_init(struct hostapd_data *hapd)
 150 {
 151 #ifdef EAP_TLS_FUNCS
 152         if (hapd->conf->eap_server &&
 153             (hapd->conf->ca_cert || hapd->conf->server_cert ||
 154              hapd->conf->private_key || hapd->conf->dh_file)) {
 155                 struct tls_config conf;
 156                 struct tls_connection_params params;
 157
 158                 os_memset(&conf, 0, sizeof(conf));
 159                 conf.tls_session_lifetime = hapd->conf->tls_session_lifetime;
 160                 hapd->ssl_ctx = tls_init(&conf);
 161                 if (hapd->ssl_ctx == NULL) {
 162                         wpa_printf(MSG_ERROR, "Failed to initialize TLS");
 163                         authsrv_deinit(hapd);
 164                         return -1;
 165                 }
 166
 167                 os_memset(&params, 0, sizeof(params));
 168                 params.ca_cert = hapd->conf->ca_cert;
 169                 params.client_cert = hapd->conf->server_cert;
 170                 params.private_key = hapd->conf->private_key;
 171                 params.private_key_passwd = hapd->conf->private_key_passwd;
 172                 params.dh_file = hapd->conf->dh_file;
 173                 params.openssl_ciphers = hapd->conf->openssl_ciphers;
 174                 params.ocsp_stapling_response =
 175                         hapd->conf->ocsp_stapling_response;
 176
 177                 if (tls_global_set_params(hapd->ssl_ctx, &params)) {
 178                         wpa_printf(MSG_ERROR, "Failed to set TLS parameters");
 179                         authsrv_deinit(hapd);
 180                         return -1;
 181                 }
 182
 183                 if (tls_global_set_verify(hapd->ssl_ctx,
 184                                           hapd->conf->check_crl)) {
 185                         wpa_printf(MSG_ERROR, "Failed to enable check_crl");
 186                         authsrv_deinit(hapd);
 187                         return -1;
 188                 }
 189         }
 190 #endif /* EAP_TLS_FUNCS */
 191
 192 #ifdef EAP_SIM_DB
 193         if (hapd->conf->eap_sim_db) {
 194                 hapd->eap_sim_db_priv =
 195                         eap_sim_db_init(hapd->conf->eap_sim_db,
 196                                         hostapd_sim_db_cb, hapd);
 197                 if (hapd->eap_sim_db_priv == NULL) {
 198                         wpa_printf(MSG_ERROR, "Failed to initialize EAP-SIM "
 199                                    "database interface");
 200                         authsrv_deinit(hapd);
 201                         return -1;
 202                 }
 203         }
 204 #endif /* EAP_SIM_DB */
 205
 206 #ifdef RADIUS_SERVER
 207         if (hapd->conf->radius_server_clients &&
 208             hostapd_setup_radius_srv(hapd))
 209                 return -1;
 210 #endif /* RADIUS_SERVER */
 211
 212         return 0;
 213 }
 214
 215
 216 void authsrv_deinit(struct hostapd_data *hapd)
 217 {
 218 #ifdef RADIUS_SERVER
 219         radius_server_deinit(hapd->radius_srv);
 220         hapd->radius_srv = NULL;
 221 #endif /* RADIUS_SERVER */
 222
 223 #ifdef EAP_TLS_FUNCS
 224         if (hapd->ssl_ctx) {
 225                 tls_deinit(hapd->ssl_ctx);
 226                 hapd->ssl_ctx = NULL;
 227         }
 228 #endif /* EAP_TLS_FUNCS */
 229
 230 #ifdef EAP_SIM_DB
 231         if (hapd->eap_sim_db_priv) {
 232                 eap_sim_db_deinit(hapd->eap_sim_db_priv);
 233                 hapd->eap_sim_db_priv = NULL;
 234         }
 235 #endif /* EAP_SIM_DB */
 236 }