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authorJouni Malinen <j@w1.fi>2008-02-28 01:34:43 (GMT)
committerJouni Malinen <jm@jm.kir.nu>2008-02-28 01:34:43 (GMT)
commit6fc6879bd55a394f807cbbe927df736c190cb8ab (patch)
treecdf50da0c58f21510a808d53502a060d911ff243 /hostapd/hostapd.c
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Re-initialize hostapd/wpa_supplicant git repository based on 0.6.3 release
Diffstat (limited to 'hostapd/hostapd.c')
-rw-r--r--hostapd/hostapd.c2000
1 files changed, 2000 insertions, 0 deletions
diff --git a/hostapd/hostapd.c b/hostapd/hostapd.c
new file mode 100644
index 0000000..1e6a7bb
--- /dev/null
+++ b/hostapd/hostapd.c
@@ -0,0 +1,2000 @@
+/*
+ * hostapd / Initialization and configuration
+ * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+#ifndef CONFIG_NATIVE_WINDOWS
+#include <syslog.h>
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+#include "eloop.h"
+#include "hostapd.h"
+#include "ieee802_1x.h"
+#include "ieee802_11.h"
+#include "beacon.h"
+#include "hw_features.h"
+#include "accounting.h"
+#include "eapol_sm.h"
+#include "iapp.h"
+#include "ap.h"
+#include "ieee802_11_auth.h"
+#include "ap_list.h"
+#include "sta_info.h"
+#include "driver.h"
+#include "radius/radius_client.h"
+#include "radius/radius_server.h"
+#include "wpa.h"
+#include "preauth.h"
+#include "wme.h"
+#include "vlan_init.h"
+#include "ctrl_iface.h"
+#include "tls.h"
+#include "eap_server/eap_sim_db.h"
+#include "eap_server/eap.h"
+#include "version.h"
+#include "l2_packet/l2_packet.h"
+
+
+static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
+ size_t identity_len, int phase2,
+ struct eap_user *user);
+
+struct hapd_interfaces {
+ size_t count;
+ struct hostapd_iface **iface;
+};
+
+unsigned char rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+
+
+extern int wpa_debug_level;
+extern int wpa_debug_show_keys;
+extern int wpa_debug_timestamp;
+
+
+static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
+ int level, const char *txt, size_t len)
+{
+ struct hostapd_data *hapd = ctx;
+ char *format, *module_str;
+ int maxlen;
+ int conf_syslog_level, conf_stdout_level;
+ unsigned int conf_syslog, conf_stdout;
+
+ maxlen = len + 100;
+ format = os_malloc(maxlen);
+ if (!format)
+ return;
+
+ if (hapd && hapd->conf) {
+ conf_syslog_level = hapd->conf->logger_syslog_level;
+ conf_stdout_level = hapd->conf->logger_stdout_level;
+ conf_syslog = hapd->conf->logger_syslog;
+ conf_stdout = hapd->conf->logger_stdout;
+ } else {
+ conf_syslog_level = conf_stdout_level = 0;
+ conf_syslog = conf_stdout = (unsigned int) -1;
+ }
+
+ switch (module) {
+ case HOSTAPD_MODULE_IEEE80211:
+ module_str = "IEEE 802.11";
+ break;
+ case HOSTAPD_MODULE_IEEE8021X:
+ module_str = "IEEE 802.1X";
+ break;
+ case HOSTAPD_MODULE_RADIUS:
+ module_str = "RADIUS";
+ break;
+ case HOSTAPD_MODULE_WPA:
+ module_str = "WPA";
+ break;
+ case HOSTAPD_MODULE_DRIVER:
+ module_str = "DRIVER";
+ break;
+ case HOSTAPD_MODULE_IAPP:
+ module_str = "IAPP";
+ break;
+ case HOSTAPD_MODULE_MLME:
+ module_str = "MLME";
+ break;
+ default:
+ module_str = NULL;
+ break;
+ }
+
+ if (hapd && hapd->conf && addr)
+ os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
+ hapd->conf->iface, MAC2STR(addr),
+ module_str ? " " : "", module_str, txt);
+ else if (hapd && hapd->conf)
+ os_snprintf(format, maxlen, "%s:%s%s %s",
+ hapd->conf->iface, module_str ? " " : "",
+ module_str, txt);
+ else if (addr)
+ os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
+ MAC2STR(addr), module_str ? " " : "",
+ module_str, txt);
+ else
+ os_snprintf(format, maxlen, "%s%s%s",
+ module_str, module_str ? ": " : "", txt);
+
+ if ((conf_stdout & module) && level >= conf_stdout_level) {
+ wpa_debug_print_timestamp();
+ printf("%s\n", format);
+ }
+
+#ifndef CONFIG_NATIVE_WINDOWS
+ if ((conf_syslog & module) && level >= conf_syslog_level) {
+ int priority;
+ switch (level) {
+ case HOSTAPD_LEVEL_DEBUG_VERBOSE:
+ case HOSTAPD_LEVEL_DEBUG:
+ priority = LOG_DEBUG;
+ break;
+ case HOSTAPD_LEVEL_INFO:
+ priority = LOG_INFO;
+ break;
+ case HOSTAPD_LEVEL_NOTICE:
+ priority = LOG_NOTICE;
+ break;
+ case HOSTAPD_LEVEL_WARNING:
+ priority = LOG_WARNING;
+ break;
+ default:
+ priority = LOG_INFO;
+ break;
+ }
+ syslog(priority, "%s", format);
+ }
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+ os_free(format);
+}
+
+
+static void hostapd_deauth_all_stas(struct hostapd_data *hapd)
+{
+#if 0
+ u8 addr[ETH_ALEN];
+
+ os_memset(addr, 0xff, ETH_ALEN);
+ hostapd_sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
+#else
+ /* New Prism2.5/3 STA firmware versions seem to have issues with this
+ * broadcast deauth frame. This gets the firmware in odd state where
+ * nothing works correctly, so let's skip sending this for a while
+ * until the issue has been resolved. */
+#endif
+}
+
+
+/**
+ * hostapd_prune_associations - Remove extraneous associations
+ * @hapd: Pointer to BSS data for the most recent association
+ * @sta: Pointer to the associated STA data
+ *
+ * This function looks through all radios and BSS's for previous
+ * (stale) associations of STA. If any are found they are removed.
+ */
+static void hostapd_prune_associations(struct hostapd_data *hapd,
+ struct sta_info *sta)
+{
+ struct sta_info *osta;
+ struct hostapd_data *ohapd;
+ size_t i, j;
+ struct hapd_interfaces *interfaces = eloop_get_user_data();
+
+ for (i = 0; i < interfaces->count; i++) {
+ for (j = 0; j < interfaces->iface[i]->num_bss; j++) {
+ ohapd = interfaces->iface[i]->bss[j];
+ if (ohapd == hapd)
+ continue;
+ osta = ap_get_sta(ohapd, sta->addr);
+ if (!osta)
+ continue;
+
+ ap_sta_disassociate(ohapd, osta,
+ WLAN_REASON_UNSPECIFIED);
+ }
+ }
+}
+
+
+/**
+ * hostapd_new_assoc_sta - Notify that a new station associated with the AP
+ * @hapd: Pointer to BSS data
+ * @sta: Pointer to the associated STA data
+ * @reassoc: 1 to indicate this was a re-association; 0 = first association
+ *
+ * This function will be called whenever a station associates with the AP. It
+ * can be called for ieee802_11.c for drivers that export MLME to hostapd and
+ * from driver_*.c for drivers that take care of management frames (IEEE 802.11
+ * authentication and association) internally.
+ */
+void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
+ int reassoc)
+{
+ if (hapd->tkip_countermeasures) {
+ hostapd_sta_deauth(hapd, sta->addr,
+ WLAN_REASON_MICHAEL_MIC_FAILURE);
+ return;
+ }
+
+ hostapd_prune_associations(hapd, sta);
+
+ /* IEEE 802.11F (IAPP) */
+ if (hapd->conf->ieee802_11f)
+ iapp_new_station(hapd->iapp, sta);
+
+ /* Start accounting here, if IEEE 802.1X and WPA are not used.
+ * IEEE 802.1X/WPA code will start accounting after the station has
+ * been authorized. */
+ if (!hapd->conf->ieee802_1x && !hapd->conf->wpa)
+ accounting_sta_start(hapd, sta);
+
+ hostapd_wme_sta_config(hapd, sta);
+
+ /* Start IEEE 802.1X authentication process for new stations */
+ ieee802_1x_new_station(hapd, sta);
+ if (reassoc) {
+ if (sta->auth_alg != WLAN_AUTH_FT)
+ wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH);
+ } else
+ wpa_auth_sta_associated(hapd->wpa_auth, sta->wpa_sm);
+}
+
+
+#ifdef EAP_SERVER
+static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
+ struct sta_info *sta, void *ctx)
+{
+ if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
+ return 1;
+ return 0;
+}
+
+
+static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
+{
+ struct hostapd_data *hapd = ctx;
+ if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0)
+ radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
+}
+#endif /* EAP_SERVER */
+
+
+static void handle_term(int sig, void *eloop_ctx, void *signal_ctx)
+{
+ printf("Signal %d received - terminating\n", sig);
+ eloop_terminate();
+}
+
+
+static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
+ struct wpa_auth_config *wconf)
+{
+ wconf->wpa = conf->wpa;
+ wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
+ wconf->wpa_pairwise = conf->wpa_pairwise;
+ wconf->wpa_group = conf->wpa_group;
+ wconf->wpa_group_rekey = conf->wpa_group_rekey;
+ wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
+ wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
+ wconf->rsn_pairwise = conf->rsn_pairwise;
+ wconf->rsn_preauth = conf->rsn_preauth;
+ wconf->eapol_version = conf->eapol_version;
+ wconf->peerkey = conf->peerkey;
+ wconf->wme_enabled = conf->wme_enabled;
+#ifdef CONFIG_IEEE80211W
+ wconf->ieee80211w = conf->ieee80211w;
+#endif /* CONFIG_IEEE80211W */
+#ifdef CONFIG_IEEE80211R
+ wconf->ssid_len = conf->ssid.ssid_len;
+ if (wconf->ssid_len > SSID_LEN)
+ wconf->ssid_len = SSID_LEN;
+ os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
+ os_memcpy(wconf->mobility_domain, conf->mobility_domain,
+ MOBILITY_DOMAIN_ID_LEN);
+ if (conf->nas_identifier &&
+ os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
+ wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
+ os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
+ wconf->r0_key_holder_len);
+ }
+ os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
+ wconf->r0_key_lifetime = conf->r0_key_lifetime;
+ wconf->reassociation_deadline = conf->reassociation_deadline;
+ wconf->r0kh_list = conf->r0kh_list;
+ wconf->r1kh_list = conf->r1kh_list;
+ wconf->pmk_r1_push = conf->pmk_r1_push;
+#endif /* CONFIG_IEEE80211R */
+}
+
+
+#ifndef CONFIG_NATIVE_WINDOWS
+static void handle_reload(int sig, void *eloop_ctx, void *signal_ctx)
+{
+ struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
+ struct hostapd_config *newconf;
+ size_t i;
+ struct wpa_auth_config wpa_auth_conf;
+
+ printf("Signal %d received - reloading configuration\n", sig);
+
+ for (i = 0; i < hapds->count; i++) {
+ struct hostapd_data *hapd = hapds->iface[i]->bss[0];
+ newconf = hostapd_config_read(hapds->iface[i]->config_fname);
+ if (newconf == NULL) {
+ printf("Failed to read new configuration file - "
+ "continuing with old.\n");
+ continue;
+ }
+ /* TODO: update dynamic data based on changed configuration
+ * items (e.g., open/close sockets, remove stations added to
+ * deny list, etc.) */
+ radius_client_flush(hapd->radius, 0);
+ hostapd_config_free(hapd->iconf);
+
+ hostapd_wpa_auth_conf(&newconf->bss[0], &wpa_auth_conf);
+ wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
+
+ hapd->iconf = newconf;
+ hapd->conf = &newconf->bss[0];
+ hapds->iface[i]->conf = newconf;
+
+ if (hostapd_setup_wpa_psk(hapd->conf)) {
+ wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
+ "after reloading configuration");
+ }
+ }
+}
+
+
+#ifdef HOSTAPD_DUMP_STATE
+static void hostapd_dump_state(struct hostapd_data *hapd)
+{
+ FILE *f;
+ time_t now;
+ struct sta_info *sta;
+ int i;
+ char *buf;
+
+ if (!hapd->conf->dump_log_name) {
+ printf("Dump file not defined - ignoring dump request\n");
+ return;
+ }
+
+ printf("Dumping hostapd state to '%s'\n", hapd->conf->dump_log_name);
+ f = fopen(hapd->conf->dump_log_name, "w");
+ if (f == NULL) {
+ printf("Could not open dump file '%s' for writing.\n",
+ hapd->conf->dump_log_name);
+ return;
+ }
+
+ time(&now);
+ fprintf(f, "hostapd state dump - %s", ctime(&now));
+ fprintf(f, "num_sta=%d num_sta_non_erp=%d "
+ "num_sta_no_short_slot_time=%d\n"
+ "num_sta_no_short_preamble=%d\n",
+ hapd->num_sta, hapd->iface->num_sta_non_erp,
+ hapd->iface->num_sta_no_short_slot_time,
+ hapd->iface->num_sta_no_short_preamble);
+
+ for (sta = hapd->sta_list; sta != NULL; sta = sta->next) {
+ fprintf(f, "\nSTA=" MACSTR "\n", MAC2STR(sta->addr));
+
+ fprintf(f,
+ " AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s\n"
+ " capability=0x%x listen_interval=%d\n",
+ sta->aid,
+ sta->flags,
+ (sta->flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
+ (sta->flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
+ (sta->flags & WLAN_STA_PS ? "[PS]" : ""),
+ (sta->flags & WLAN_STA_TIM ? "[TIM]" : ""),
+ (sta->flags & WLAN_STA_PERM ? "[PERM]" : ""),
+ (sta->flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" :
+ ""),
+ (sta->flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
+ ""),
+ (sta->flags & WLAN_STA_SHORT_PREAMBLE ?
+ "[SHORT_PREAMBLE]" : ""),
+ (sta->flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
+ (sta->flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
+ sta->capability,
+ sta->listen_interval);
+
+ fprintf(f, " supported_rates=");
+ for (i = 0; i < sta->supported_rates_len; i++)
+ fprintf(f, "%02x ", sta->supported_rates[i]);
+ fprintf(f, "\n");
+
+ fprintf(f,
+ " timeout_next=%s\n",
+ (sta->timeout_next == STA_NULLFUNC ? "NULLFUNC POLL" :
+ (sta->timeout_next == STA_DISASSOC ? "DISASSOC" :
+ "DEAUTH")));
+
+ ieee802_1x_dump_state(f, " ", sta);
+ }
+
+ buf = os_malloc(4096);
+ if (buf) {
+ int count = radius_client_get_mib(hapd->radius, buf, 4096);
+ if (count < 0)
+ count = 0;
+ else if (count > 4095)
+ count = 4095;
+ buf[count] = '\0';
+ fprintf(f, "%s", buf);
+
+ count = radius_server_get_mib(hapd->radius_srv, buf, 4096);
+ if (count < 0)
+ count = 0;
+ else if (count > 4095)
+ count = 4095;
+ buf[count] = '\0';
+ fprintf(f, "%s", buf);
+ os_free(buf);
+ }
+ fclose(f);
+}
+#endif /* HOSTAPD_DUMP_STATE */
+
+
+static void handle_dump_state(int sig, void *eloop_ctx, void *signal_ctx)
+{
+#ifdef HOSTAPD_DUMP_STATE
+ struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
+ size_t i, j;
+
+ for (i = 0; i < hapds->count; i++) {
+ struct hostapd_iface *hapd_iface = hapds->iface[i];
+ for (j = 0; j < hapd_iface->num_bss; j++)
+ hostapd_dump_state(hapd_iface->bss[j]);
+ }
+#endif /* HOSTAPD_DUMP_STATE */
+}
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
+ char *ifname)
+{
+ int i;
+
+ for (i = 0; i < NUM_WEP_KEYS; i++) {
+ if (hostapd_set_encryption(ifname, hapd, "none", NULL, i, NULL,
+ 0, i == 0 ? 1 : 0)) {
+ printf("Failed to clear default encryption keys "
+ "(ifname=%s keyidx=%d)\n", ifname, i);
+ }
+ }
+}
+
+
+static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd)
+{
+ hostapd_broadcast_key_clear_iface(hapd, hapd->conf->iface);
+ return 0;
+}
+
+
+static int hostapd_broadcast_wep_set(struct hostapd_data *hapd)
+{
+ int errors = 0, idx;
+ struct hostapd_ssid *ssid = &hapd->conf->ssid;
+
+ idx = ssid->wep.idx;
+ if (ssid->wep.default_len &&
+ hostapd_set_encryption(hapd->conf->iface,
+ hapd, "WEP", NULL, idx,
+ ssid->wep.key[idx],
+ ssid->wep.len[idx],
+ idx == ssid->wep.idx)) {
+ printf("Could not set WEP encryption.\n");
+ errors++;
+ }
+
+ if (ssid->dyn_vlan_keys) {
+ size_t i;
+ for (i = 0; i <= ssid->max_dyn_vlan_keys; i++) {
+ const char *ifname;
+ struct hostapd_wep_keys *key = ssid->dyn_vlan_keys[i];
+ if (key == NULL)
+ continue;
+ ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan,
+ i);
+ if (ifname == NULL)
+ continue;
+
+ idx = key->idx;
+ if (hostapd_set_encryption(ifname, hapd, "WEP", NULL,
+ idx, key->key[idx],
+ key->len[idx],
+ idx == key->idx)) {
+ printf("Could not set dynamic VLAN WEP "
+ "encryption.\n");
+ errors++;
+ }
+ }
+ }
+
+ return errors;
+}
+
+/**
+ * hostapd_cleanup - Per-BSS cleanup (deinitialization)
+ * @hapd: Pointer to BSS data
+ *
+ * This function is used to free all per-BSS data structures and resources.
+ * This gets called in a loop for each BSS between calls to
+ * hostapd_cleanup_iface_pre() and hostapd_cleanup_iface() when an interface
+ * is deinitialized. Most of the modules that are initialized in
+ * hostapd_setup_bss() are deinitialized here.
+ */
+static void hostapd_cleanup(struct hostapd_data *hapd)
+{
+ hostapd_ctrl_iface_deinit(hapd);
+
+ os_free(hapd->default_wep_key);
+ hapd->default_wep_key = NULL;
+ iapp_deinit(hapd->iapp);
+ hapd->iapp = NULL;
+ accounting_deinit(hapd);
+ rsn_preauth_iface_deinit(hapd);
+ if (hapd->wpa_auth) {
+ wpa_deinit(hapd->wpa_auth);
+ hapd->wpa_auth = NULL;
+
+ if (hostapd_set_privacy(hapd, 0)) {
+ wpa_printf(MSG_DEBUG, "Could not disable "
+ "PrivacyInvoked for interface %s",
+ hapd->conf->iface);
+ }
+
+ if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
+ wpa_printf(MSG_DEBUG, "Could not remove generic "
+ "information element from interface %s",
+ hapd->conf->iface);
+ }
+ }
+ ieee802_1x_deinit(hapd);
+ vlan_deinit(hapd);
+ hostapd_acl_deinit(hapd);
+ radius_client_deinit(hapd->radius);
+ hapd->radius = NULL;
+ radius_server_deinit(hapd->radius_srv);
+ hapd->radius_srv = NULL;
+
+#ifdef CONFIG_IEEE80211R
+ l2_packet_deinit(hapd->l2);
+#endif /* CONFIG_IEEE80211R */
+
+ hostapd_wireless_event_deinit(hapd);
+
+#ifdef EAP_TLS_FUNCS
+ if (hapd->ssl_ctx) {
+ tls_deinit(hapd->ssl_ctx);
+ hapd->ssl_ctx = NULL;
+ }
+#endif /* EAP_TLS_FUNCS */
+
+#ifdef EAP_SERVER
+ if (hapd->eap_sim_db_priv) {
+ eap_sim_db_deinit(hapd->eap_sim_db_priv);
+ hapd->eap_sim_db_priv = NULL;
+ }
+#endif /* EAP_SERVER */
+
+ if (hapd->interface_added &&
+ hostapd_bss_remove(hapd, hapd->conf->iface)) {
+ printf("Failed to remove BSS interface %s\n",
+ hapd->conf->iface);
+ }
+}
+
+
+/**
+ * hostapd_cleanup_iface_pre - Preliminary per-interface cleanup
+ * @iface: Pointer to interface data
+ *
+ * This function is called before per-BSS data structures are deinitialized
+ * with hostapd_cleanup().
+ */
+static void hostapd_cleanup_iface_pre(struct hostapd_iface *iface)
+{
+}
+
+
+/**
+ * hostapd_cleanup_iface - Complete per-interface cleanup
+ * @iface: Pointer to interface data
+ *
+ * This function is called after per-BSS data structures are deinitialized
+ * with hostapd_cleanup().
+ */
+static void hostapd_cleanup_iface(struct hostapd_iface *iface)
+{
+ hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
+ iface->hw_features = NULL;
+ os_free(iface->current_rates);
+ iface->current_rates = NULL;
+ ap_list_deinit(iface);
+ hostapd_config_free(iface->conf);
+ iface->conf = NULL;
+
+ os_free(iface->config_fname);
+ os_free(iface->bss);
+ os_free(iface);
+}
+
+
+static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
+{
+ int i;
+
+ hostapd_broadcast_wep_set(hapd);
+
+ if (hapd->conf->ssid.wep.default_len)
+ return 0;
+
+ for (i = 0; i < 4; i++) {
+ if (hapd->conf->ssid.wep.key[i] &&
+ hostapd_set_encryption(iface, hapd, "WEP", NULL,
+ i, hapd->conf->ssid.wep.key[i],
+ hapd->conf->ssid.wep.len[i],
+ i == hapd->conf->ssid.wep.idx)) {
+ printf("Could not set WEP encryption.\n");
+ return -1;
+ }
+ if (hapd->conf->ssid.wep.key[i] &&
+ i == hapd->conf->ssid.wep.idx)
+ hostapd_set_privacy(hapd, 1);
+ }
+
+ return 0;
+}
+
+
+static int hostapd_flush_old_stations(struct hostapd_data *hapd)
+{
+ int ret = 0;
+
+ wpa_printf(MSG_DEBUG, "Flushing old station entries");
+ if (hostapd_flush(hapd)) {
+ printf("Could not connect to kernel driver.\n");
+ ret = -1;
+ }
+ wpa_printf(MSG_DEBUG, "Deauthenticate all stations");
+ hostapd_deauth_all_stas(hapd);
+
+ return ret;
+}
+
+
+static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
+ logger_level level, const char *txt)
+{
+ struct hostapd_data *hapd = ctx;
+ int hlevel;
+
+ switch (level) {
+ case LOGGER_WARNING:
+ hlevel = HOSTAPD_LEVEL_WARNING;
+ break;
+ case LOGGER_INFO:
+ hlevel = HOSTAPD_LEVEL_INFO;
+ break;
+ case LOGGER_DEBUG:
+ default:
+ hlevel = HOSTAPD_LEVEL_DEBUG;
+ break;
+ }
+
+ hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
+}
+
+
+static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
+ u16 reason)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta;
+
+ wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
+ "STA " MACSTR " reason %d",
+ __func__, MAC2STR(addr), reason);
+
+ sta = ap_get_sta(hapd, addr);
+ hostapd_sta_deauth(hapd, addr, reason);
+ if (sta == NULL)
+ return;
+ sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_AUTHORIZED);
+ eloop_cancel_timeout(ap_handle_timer, hapd, sta);
+ eloop_register_timeout(0, 0, ap_handle_timer, hapd, sta);
+ sta->timeout_next = STA_REMOVE;
+}
+
+
+static void hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
+{
+ struct hostapd_data *hapd = ctx;
+ ieee80211_michael_mic_failure(hapd, addr, 0);
+}
+
+
+static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
+ wpa_eapol_variable var, int value)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta = ap_get_sta(hapd, addr);
+ if (sta == NULL)
+ return;
+ switch (var) {
+ case WPA_EAPOL_portEnabled:
+ ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
+ break;
+ case WPA_EAPOL_portValid:
+ ieee802_1x_notify_port_valid(sta->eapol_sm, value);
+ break;
+ case WPA_EAPOL_authorized:
+ ieee802_1x_set_sta_authorized(hapd, sta, value);
+ break;
+ case WPA_EAPOL_portControl_Auto:
+ if (sta->eapol_sm)
+ sta->eapol_sm->portControl = Auto;
+ break;
+ case WPA_EAPOL_keyRun:
+ if (sta->eapol_sm)
+ sta->eapol_sm->keyRun = value ? TRUE : FALSE;
+ break;
+ case WPA_EAPOL_keyAvailable:
+ if (sta->eapol_sm)
+ sta->eapol_sm->eap_if->eapKeyAvailable =
+ value ? TRUE : FALSE;
+ break;
+ case WPA_EAPOL_keyDone:
+ if (sta->eapol_sm)
+ sta->eapol_sm->keyDone = value ? TRUE : FALSE;
+ break;
+ case WPA_EAPOL_inc_EapolFramesTx:
+ if (sta->eapol_sm)
+ sta->eapol_sm->dot1xAuthEapolFramesTx++;
+ break;
+ }
+}
+
+
+static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
+ wpa_eapol_variable var)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta = ap_get_sta(hapd, addr);
+ if (sta == NULL || sta->eapol_sm == NULL)
+ return -1;
+ switch (var) {
+ case WPA_EAPOL_keyRun:
+ return sta->eapol_sm->keyRun;
+ case WPA_EAPOL_keyAvailable:
+ return sta->eapol_sm->eap_if->eapKeyAvailable;
+ default:
+ return -1;
+ }
+}
+
+
+static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
+ const u8 *prev_psk)
+{
+ struct hostapd_data *hapd = ctx;
+ return hostapd_get_psk(hapd->conf, addr, prev_psk);
+}
+
+
+static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
+ size_t *len)
+{
+ struct hostapd_data *hapd = ctx;
+ const u8 *key;
+ size_t keylen;
+ struct sta_info *sta;
+
+ sta = ap_get_sta(hapd, addr);
+ if (sta == NULL)
+ return -1;
+
+ key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
+ if (key == NULL)
+ return -1;
+
+ if (keylen > *len)
+ keylen = *len;
+ os_memcpy(msk, key, keylen);
+ *len = keylen;
+
+ return 0;
+}
+
+
+static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, const char *alg,
+ const u8 *addr, int idx, u8 *key,
+ size_t key_len)
+{
+ struct hostapd_data *hapd = ctx;
+ const char *ifname = hapd->conf->iface;
+
+ if (vlan_id > 0) {
+ ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
+ if (ifname == NULL)
+ return -1;
+ }
+
+ return hostapd_set_encryption(ifname, hapd, alg, addr, idx,
+ key, key_len, 1);
+}
+
+
+static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
+ u8 *seq)
+{
+ struct hostapd_data *hapd = ctx;
+ return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
+}
+
+
+static int hostapd_wpa_auth_get_seqnum_igtk(void *ctx, const u8 *addr, int idx,
+ u8 *seq)
+{
+ struct hostapd_data *hapd = ctx;
+ return hostapd_get_seqnum_igtk(hapd->conf->iface, hapd, addr, idx,
+ seq);
+}
+
+
+static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
+ const u8 *data, size_t data_len,
+ int encrypt)
+{
+ struct hostapd_data *hapd = ctx;
+ return hostapd_send_eapol(hapd, addr, data, data_len, encrypt);
+}
+
+
+static int hostapd_wpa_auth_for_each_sta(
+ void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
+ void *cb_ctx)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta;
+
+ for (sta = hapd->sta_list; sta; sta = sta->next) {
+ if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
+ return 1;
+ }
+ return 0;
+}
+
+
+static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
+ const u8 *data, size_t data_len)
+{
+ struct hostapd_data *hapd = ctx;
+
+ if (hapd->driver && hapd->driver->send_ether)
+ return hapd->driver->send_ether(hapd->drv_priv, dst,
+ hapd->own_addr, proto,
+ data, data_len);
+ if (hapd->l2 == NULL)
+ return -1;
+ return l2_packet_send(hapd->l2, dst, proto, data, data_len);
+}
+
+
+#ifdef CONFIG_IEEE80211R
+
+static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
+ const u8 *data, size_t data_len)
+{
+ struct hostapd_data *hapd = ctx;
+ int res;
+ struct ieee80211_mgmt *m;
+ size_t mlen;
+ struct sta_info *sta;
+
+ sta = ap_get_sta(hapd, dst);
+ if (sta == NULL || sta->wpa_sm == NULL)
+ return -1;
+
+ m = os_zalloc(sizeof(*m) + data_len);
+ if (m == NULL)
+ return -1;
+ mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
+ m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+ WLAN_FC_STYPE_ACTION);
+ os_memcpy(m->da, dst, ETH_ALEN);
+ os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
+ os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
+ os_memcpy(&m->u, data, data_len);
+
+ res = hostapd_send_mgmt_frame(hapd, (u8 *) m, mlen, 0);
+ os_free(m);
+ return res;
+}
+
+
+static struct wpa_state_machine *
+hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta;
+
+ sta = ap_sta_add(hapd, sta_addr);
+ if (sta == NULL)
+ return NULL;
+ if (sta->wpa_sm)
+ return sta->wpa_sm;
+
+ sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
+ if (sta->wpa_sm == NULL) {
+ ap_free_sta(hapd, sta);
+ return NULL;
+ }
+ sta->auth_alg = WLAN_AUTH_FT;
+
+ return sta->wpa_sm;
+}
+
+
+static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
+ size_t len)
+{
+ struct hostapd_data *hapd = ctx;
+ wpa_ft_rrb_rx(hapd->wpa_auth, src_addr, buf, len);
+}
+
+#endif /* CONFIG_IEEE80211R */
+
+
+/**
+ * hostapd_validate_bssid_configuration - Validate BSSID configuration
+ * @iface: Pointer to interface data
+ * Returns: 0 on success, -1 on failure
+ *
+ * This function is used to validate that the configured BSSIDs are valid.
+ */
+static int hostapd_validate_bssid_configuration(struct hostapd_iface *iface)
+{
+ u8 mask[ETH_ALEN] = { 0 };
+ struct hostapd_data *hapd = iface->bss[0];
+ unsigned int i = iface->conf->num_bss, bits = 0, j;
+ int res;
+
+ /* Generate BSSID mask that is large enough to cover the BSSIDs. */
+
+ /* Determine the bits necessary to cover the number of BSSIDs. */
+ for (i--; i; i >>= 1)
+ bits++;
+
+ /* Determine the bits necessary to any configured BSSIDs,
+ if they are higher than the number of BSSIDs. */
+ for (j = 0; j < iface->conf->num_bss; j++) {
+ if (hostapd_mac_comp_empty(iface->conf->bss[j].bssid) == 0)
+ continue;
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ mask[i] |=
+ iface->conf->bss[j].bssid[i] ^
+ hapd->own_addr[i];
+ }
+ }
+
+ for (i = 0; i < ETH_ALEN && mask[i] == 0; i++)
+ ;
+ j = 0;
+ if (i < ETH_ALEN) {
+ j = (5 - i) * 8;
+
+ while (mask[i] != 0) {
+ mask[i] >>= 1;
+ j++;
+ }
+ }
+
+ if (bits < j)
+ bits = j;
+
+ if (bits > 40)
+ return -1;
+
+ os_memset(mask, 0xff, ETH_ALEN);
+ j = bits / 8;
+ for (i = 5; i > 5 - j; i--)
+ mask[i] = 0;
+ j = bits % 8;
+ while (j--)
+ mask[i] <<= 1;
+
+ wpa_printf(MSG_DEBUG, "BSS count %lu, BSSID mask " MACSTR " (%d bits)",
+ (unsigned long) iface->conf->num_bss, MAC2STR(mask), bits);
+
+ res = hostapd_valid_bss_mask(hapd, hapd->own_addr, mask);
+ if (res == 0)
+ return 0;
+
+ if (res < 0) {
+ printf("Driver did not accept BSSID mask " MACSTR " for start "
+ "address " MACSTR ".\n",
+ MAC2STR(mask), MAC2STR(hapd->own_addr));
+ return -1;
+ }
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
+ printf("Invalid BSSID mask " MACSTR " for start "
+ "address " MACSTR ".\n"
+ "Start address must be the first address in the"
+ " block (i.e., addr AND mask == addr).\n",
+ MAC2STR(mask), MAC2STR(hapd->own_addr));
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+
+static int mac_in_conf(struct hostapd_config *conf, const void *a)
+{
+ size_t i;
+
+ for (i = 0; i < conf->num_bss; i++) {
+ if (hostapd_mac_comp(conf->bss[i].bssid, a) == 0) {
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+
+static int hostapd_setup_wpa(struct hostapd_data *hapd)
+{
+ struct wpa_auth_config _conf;
+ struct wpa_auth_callbacks cb;
+ const u8 *wpa_ie;
+ size_t wpa_ie_len;
+
+ hostapd_wpa_auth_conf(hapd->conf, &_conf);
+ os_memset(&cb, 0, sizeof(cb));
+ cb.ctx = hapd;
+ cb.logger = hostapd_wpa_auth_logger;
+ cb.disconnect = hostapd_wpa_auth_disconnect;
+ cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
+ cb.set_eapol = hostapd_wpa_auth_set_eapol;
+ cb.get_eapol = hostapd_wpa_auth_get_eapol;
+ cb.get_psk = hostapd_wpa_auth_get_psk;
+ cb.get_msk = hostapd_wpa_auth_get_msk;
+ cb.set_key = hostapd_wpa_auth_set_key;
+ cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
+ cb.get_seqnum_igtk = hostapd_wpa_auth_get_seqnum_igtk;
+ cb.send_eapol = hostapd_wpa_auth_send_eapol;
+ cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
+ cb.send_ether = hostapd_wpa_auth_send_ether;
+#ifdef CONFIG_IEEE80211R
+ cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
+ cb.add_sta = hostapd_wpa_auth_add_sta;
+#endif /* CONFIG_IEEE80211R */
+ hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
+ if (hapd->wpa_auth == NULL) {
+ printf("WPA initialization failed.\n");
+ return -1;
+ }
+
+ if (hostapd_set_privacy(hapd, 1)) {
+ wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
+ "for interface %s", hapd->conf->iface);
+ return -1;
+ }
+
+ wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
+ if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
+ wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
+ "the kernel driver.");
+ return -1;
+ }
+
+ if (rsn_preauth_iface_init(hapd)) {
+ printf("Initialization of RSN pre-authentication "
+ "failed.\n");
+ return -1;
+ }
+
+ return 0;
+
+}
+
+
+static int hostapd_setup_radius_srv(struct hostapd_data *hapd,
+ struct hostapd_bss_config *conf)
+{
+ struct radius_server_conf srv;
+ os_memset(&srv, 0, sizeof(srv));
+ srv.client_file = conf->radius_server_clients;
+ srv.auth_port = conf->radius_server_auth_port;
+ srv.conf_ctx = conf;
+ srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
+ srv.ssl_ctx = hapd->ssl_ctx;
+ srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
+ srv.eap_fast_a_id = conf->eap_fast_a_id;
+ srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
+ srv.ipv6 = conf->radius_server_ipv6;
+ srv.get_eap_user = hostapd_radius_get_eap_user;
+
+ hapd->radius_srv = radius_server_init(&srv);
+ if (hapd->radius_srv == NULL) {
+ printf("RADIUS server initialization failed.\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+/**
+ * hostapd_setup_bss - Per-BSS setup (initialization)
+ * @hapd: Pointer to BSS data
+ * @first: Whether this BSS is the first BSS of an interface
+ *
+ * This function is used to initialize all per-BSS data structures and
+ * resources. This gets called in a loop for each BSS when an interface is
+ * initialized. Most of the modules that are initialized here will be
+ * deinitialized in hostapd_cleanup().
+ */
+static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
+{
+ struct hostapd_bss_config *conf = hapd->conf;
+ u8 ssid[HOSTAPD_MAX_SSID_LEN + 1];
+ int ssid_len, set_ssid;
+
+ if (!first) {
+ if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0) {
+ /* Allocate the next available BSSID. */
+ do {
+ inc_byte_array(hapd->own_addr, ETH_ALEN);
+ } while (mac_in_conf(hapd->iconf, hapd->own_addr));
+ } else {
+ /* Allocate the configured BSSID. */
+ os_memcpy(hapd->own_addr, hapd->conf->bssid, ETH_ALEN);
+
+ if (hostapd_mac_comp(hapd->own_addr,
+ hapd->iface->bss[0]->own_addr) ==
+ 0) {
+ printf("BSS '%s' may not have BSSID "
+ "set to the MAC address of the radio\n",
+ hapd->conf->iface);
+ return -1;
+ }
+ }
+
+ hapd->interface_added = 1;
+ if (hostapd_bss_add(hapd->iface->bss[0], hapd->conf->iface,
+ hapd->own_addr)) {
+ printf("Failed to add BSS (BSSID=" MACSTR ")\n",
+ MAC2STR(hapd->own_addr));
+ return -1;
+ }
+ }
+
+ /*
+ * Fetch the SSID from the system and use it or,
+ * if one was specified in the config file, verify they
+ * match.
+ */
+ ssid_len = hostapd_get_ssid(hapd, ssid, sizeof(ssid));
+ if (ssid_len < 0) {
+ printf("Could not read SSID from system\n");
+ return -1;
+ }
+ if (conf->ssid.ssid_set) {
+ /*
+ * If SSID is specified in the config file and it differs
+ * from what is being used then force installation of the
+ * new SSID.
+ */
+ set_ssid = (conf->ssid.ssid_len != (size_t) ssid_len ||
+ os_memcmp(conf->ssid.ssid, ssid, ssid_len) != 0);
+ } else {
+ /*
+ * No SSID in the config file; just use the one we got
+ * from the system.
+ */
+ set_ssid = 0;
+ conf->ssid.ssid_len = ssid_len;
+ os_memcpy(conf->ssid.ssid, ssid, conf->ssid.ssid_len);
+ conf->ssid.ssid[conf->ssid.ssid_len] = '\0';
+ }
+
+ printf("Using interface %s with hwaddr " MACSTR " and ssid '%s'\n",
+ hapd->conf->iface, MAC2STR(hapd->own_addr),
+ hapd->conf->ssid.ssid);
+
+ if (hostapd_setup_wpa_psk(conf)) {
+ printf("WPA-PSK setup failed.\n");
+ return -1;
+ }
+
+ /* Set flag for whether SSID is broadcast in beacons */
+ if (hostapd_set_broadcast_ssid(hapd,
+ !!hapd->conf->ignore_broadcast_ssid)) {
+ printf("Could not set broadcast SSID flag for kernel "
+ "driver\n");
+ return -1;
+ }
+
+ if (hostapd_set_dtim_period(hapd, hapd->conf->dtim_period)) {
+ printf("Could not set DTIM period for kernel driver\n");
+ return -1;
+ }
+
+ /* Set SSID for the kernel driver (to be used in beacon and probe
+ * response frames) */
+ if (set_ssid && hostapd_set_ssid(hapd, (u8 *) conf->ssid.ssid,
+ conf->ssid.ssid_len)) {
+ printf("Could not set SSID for kernel driver\n");
+ return -1;
+ }
+
+ if (wpa_debug_level == MSG_MSGDUMP)
+ conf->radius->msg_dumps = 1;
+ hapd->radius = radius_client_init(hapd, conf->radius);
+ if (hapd->radius == NULL) {
+ printf("RADIUS client initialization failed.\n");
+ return -1;
+ }
+
+ if (hostapd_acl_init(hapd)) {
+ printf("ACL initialization failed.\n");
+ return -1;
+ }
+
+ if (ieee802_1x_init(hapd)) {
+ printf("IEEE 802.1X initialization failed.\n");
+ return -1;
+ }
+
+ if (hapd->conf->wpa && hostapd_setup_wpa(hapd))
+ return -1;
+
+ if (accounting_init(hapd)) {
+ printf("Accounting initialization failed.\n");
+ return -1;
+ }
+
+ if (hapd->conf->ieee802_11f &&
+ (hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
+ printf("IEEE 802.11F (IAPP) initialization failed.\n");
+ return -1;
+ }
+
+ if (hostapd_ctrl_iface_init(hapd)) {
+ printf("Failed to setup control interface\n");
+ return -1;
+ }
+
+ if (vlan_init(hapd)) {
+ printf("VLAN initialization failed.\n");
+ return -1;
+ }
+
+#ifdef CONFIG_IEEE80211R
+ hapd->l2 = l2_packet_init(hapd->conf->iface, NULL, ETH_P_RRB,
+ hostapd_rrb_receive, hapd, 0);
+ if (hapd->l2 == NULL &&
+ (hapd->driver == NULL || hapd->driver->send_ether == NULL)) {
+ printf("Failed to open l2_packet interface\n");
+ return -1;
+ }
+#endif /* CONFIG_IEEE80211R */
+
+ ieee802_11_set_beacon(hapd);
+
+ if (conf->radius_server_clients &&
+ hostapd_setup_radius_srv(hapd, conf))
+ return -1;
+
+ return 0;
+}
+
+
+/**
+ * setup_interface2 - Setup (initialize) an interface (part 2)
+ * @iface: Pointer to interface data.
+ * Returns: 0 on success; -1 on failure.
+ *
+ * Flushes old stations, sets the channel, DFS parameters, encryption,
+ * beacons, and WDS links based on the configuration.
+ */
+static int setup_interface2(struct hostapd_iface *iface)
+{
+ struct hostapd_data *hapd = iface->bss[0];
+ int freq;
+ size_t j;
+ int ret = 0;
+ u8 *prev_addr;
+
+ hostapd_flush_old_stations(hapd);
+ hostapd_set_privacy(hapd, 0);
+
+ if (hapd->iconf->channel) {
+ freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
+ printf("Mode: %s Channel: %d Frequency: %d MHz\n",
+ hostapd_hw_mode_txt(hapd->iconf->hw_mode),
+ hapd->iconf->channel, freq);
+
+ if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, freq)) {
+ printf("Could not set channel for kernel driver\n");
+ return -1;
+ }
+ }
+
+ hostapd_broadcast_wep_clear(hapd);
+ if (hostapd_setup_encryption(hapd->conf->iface, hapd))
+ return -1;
+
+ hostapd_set_beacon_int(hapd, hapd->iconf->beacon_int);
+ ieee802_11_set_beacon(hapd);
+
+ if (hapd->iconf->rts_threshold > -1 &&
+ hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
+ printf("Could not set RTS threshold for kernel driver\n");
+ return -1;
+ }
+
+ if (hapd->iconf->fragm_threshold > -1 &&
+ hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
+ printf("Could not set fragmentation threshold for kernel "
+ "driver\n");
+ return -1;
+ }
+
+ prev_addr = hapd->own_addr;
+
+ for (j = 0; j < iface->num_bss; j++) {
+ hapd = iface->bss[j];
+ if (j)
+ os_memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
+ if (hostapd_setup_bss(hapd, j == 0))
+ return -1;
+ if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0)
+ prev_addr = hapd->own_addr;
+ }
+
+ ap_list_init(iface);
+
+ if (hostapd_driver_commit(hapd) < 0) {
+ wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
+ "configuration", __func__);
+ return -1;
+ }
+
+ return ret;
+}
+
+
+static void setup_interface_start(void *eloop_data, void *user_ctx);
+static void setup_interface2_handler(void *eloop_data, void *user_ctx);
+
+/**
+ * setup_interface_finalize - Finish setup interface & call the callback
+ * @iface: Pointer to interface data.
+ * @status: Status of the setup interface (0 on success; -1 on failure).
+ * Returns: 0 on success; -1 on failure (e.g., was not in progress).
+ */
+static int setup_interface_finalize(struct hostapd_iface *iface, int status)
+{
+ hostapd_iface_cb cb;
+
+ if (!iface->setup_cb)
+ return -1;
+
+ eloop_cancel_timeout(setup_interface_start, iface, NULL);
+ eloop_cancel_timeout(setup_interface2_handler, iface, NULL);
+ hostapd_select_hw_mode_stop(iface);
+
+ cb = iface->setup_cb;
+
+ iface->setup_cb = NULL;
+
+ cb(iface, status);
+
+ return 0;
+}
+
+
+/**
+ * setup_interface2_wrapper - Wrapper for setup_interface2()
+ * @iface: Pointer to interface data.
+ * @status: Status of the hw mode select.
+ *
+ * Wrapper for setup_interface2() to calls finalize function upon completion.
+ */
+static void setup_interface2_wrapper(struct hostapd_iface *iface, int status)
+{
+ int ret = status;
+ if (ret)
+ printf("Could not select hw_mode and channel. (%d)\n", ret);
+ else
+ ret = setup_interface2(iface);
+
+ setup_interface_finalize(iface, ret);
+}
+
+
+/**
+ * setup_interface2_handler - Used for immediate call of setup_interface2
+ * @eloop_data: Stores the struct hostapd_iface * for the interface.
+ * @user_ctx: Unused.
+ */
+static void setup_interface2_handler(void *eloop_data, void *user_ctx)
+{
+ struct hostapd_iface *iface = eloop_data;
+
+ setup_interface2_wrapper(iface, 0);
+}
+
+
+static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
+ size_t identity_len, int phase2,
+ struct eap_user *user)
+{
+ const struct hostapd_eap_user *eap_user;
+ int i, count;
+
+ eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
+ if (eap_user == NULL)
+ return -1;
+
+ if (user == NULL)
+ return 0;
+
+ os_memset(user, 0, sizeof(*user));
+ count = EAP_USER_MAX_METHODS;
+ if (count > EAP_MAX_METHODS)
+ count = EAP_MAX_METHODS;
+ for (i = 0; i < count; i++) {
+ user->methods[i].vendor = eap_user->methods[i].vendor;
+ user->methods[i].method = eap_user->methods[i].method;
+ }
+
+ if (eap_user->password) {
+ user->password = os_malloc(eap_user->password_len);
+ if (user->password == NULL)
+ return -1;
+ os_memcpy(user->password, eap_user->password,
+ eap_user->password_len);
+ user->password_len = eap_user->password_len;
+ user->password_hash = eap_user->password_hash;
+ }
+ user->force_version = eap_user->force_version;
+ user->ttls_auth = eap_user->ttls_auth;
+
+ return 0;
+}
+
+
+/**
+ * setup_interface1 - Setup (initialize) an interface (part 1)
+ * @iface: Pointer to interface data
+ * Returns: 0 on success, -1 on failure
+ *
+ * Initializes the driver interface, validates the configuration,
+ * and sets driver parameters based on the configuration.
+ * Schedules setup_interface2() to be called immediately or after
+ * hardware mode setup takes place.
+ */
+static int setup_interface1(struct hostapd_iface *iface)
+{
+ struct hostapd_data *hapd = iface->bss[0];
+ struct hostapd_bss_config *conf = hapd->conf;
+ size_t i;
+ char country[4];
+ u8 *b = conf->bssid;
+
+ /*
+ * Initialize the driver interface and make sure that all BSSes get
+ * configured with a pointer to this driver interface.
+ */
+ if (b[0] | b[1] | b[2] | b[3] | b[4] | b[5]) {
+ hapd->drv_priv = hostapd_driver_init_bssid(hapd, b);
+ } else {
+ hapd->drv_priv = hostapd_driver_init(hapd);
+ }
+
+ if (hapd->drv_priv == NULL) {
+ printf("%s driver initialization failed.\n",
+ hapd->driver ? hapd->driver->name : "Unknown");
+ hapd->driver = NULL;
+ return -1;
+ }
+ for (i = 0; i < iface->num_bss; i++) {
+ iface->bss[i]->driver = hapd->driver;
+ iface->bss[i]->drv_priv = hapd->drv_priv;
+ }
+
+ if (hostapd_validate_bssid_configuration(iface))
+ return -1;
+
+ os_memcpy(country, hapd->iconf->country, 3);
+ country[3] = '\0';
+ if (hostapd_set_country(hapd, country) < 0) {
+ printf("Failed to set country code\n");
+ return -1;
+ }
+
+ if (hapd->iconf->ieee80211d || hapd->iconf->ieee80211h) {
+ if (hostapd_set_ieee80211d(hapd, 1) < 0) {
+ printf("Failed to set ieee80211d (%d)\n",
+ hapd->iconf->ieee80211d);
+ return -1;
+ }
+ }
+
+ if (hapd->iconf->bridge_packets != INTERNAL_BRIDGE_DO_NOT_CONTROL &&
+ hostapd_set_internal_bridge(hapd, hapd->iconf->bridge_packets)) {
+ printf("Failed to set bridge_packets for kernel driver\n");
+ return -1;
+ }
+
+ /* TODO: merge with hostapd_driver_init() ? */
+ if (hostapd_wireless_event_init(hapd) < 0)
+ return -1;
+
+ if (hostapd_get_hw_features(iface)) {
+ /* Not all drivers support this yet, so continue without hw
+ * feature data. */
+ } else {
+ return hostapd_select_hw_mode_start(iface,
+ setup_interface2_wrapper);
+ }
+
+ eloop_register_timeout(0, 0, setup_interface2_handler, iface, NULL);
+ return 0;
+}
+
+
+/**
+ * setup_interface_start - Handler to start setup interface
+ * @eloop_data: Stores the struct hostapd_iface * for the interface.
+ * @user_ctx: Unused.
+ *
+ * An eloop handler is used so that all errors can be processed by the
+ * callback without introducing stack recursion.
+ */
+static void setup_interface_start(void *eloop_data, void *user_ctx)
+{
+ struct hostapd_iface *iface = eloop_data;
+
+ int ret;
+
+ ret = setup_interface1(iface);
+ if (ret)
+ setup_interface_finalize(iface, ret);
+}
+
+
+/**
+ * hostapd_setup_interface_start - Start the setup of an interface
+ * @iface: Pointer to interface data.
+ * @cb: The function to callback when done.
+ * Returns: 0 if it starts successfully; cb will be called when done.
+ * -1 on failure; cb will not be called.
+ *
+ * Initializes the driver interface, validates the configuration,
+ * and sets driver parameters based on the configuration.
+ * Flushes old stations, sets the channel, DFS parameters, encryption,
+ * beacons, and WDS links based on the configuration.
+ */
+int hostapd_setup_interface_start(struct hostapd_iface *iface,
+ hostapd_iface_cb cb)
+{
+ if (iface->setup_cb) {
+ wpa_printf(MSG_DEBUG,
+ "%s: Interface setup already in progress.\n",
+ iface->bss[0]->conf->iface);
+ return -1;
+ }
+
+ iface->setup_cb = cb;
+
+ eloop_register_timeout(0, 0, setup_interface_start, iface, NULL);
+
+ return 0;
+}
+
+
+/**
+ * hostapd_setup_interace_stop - Stops the setup of an interface
+ * @iface: Pointer to interface data
+ * Returns: 0 if successfully stopped;
+ * -1 on failure (i.e., was not in progress)
+ */
+int hostapd_setup_interface_stop(struct hostapd_iface *iface)
+{
+ return setup_interface_finalize(iface, -1);
+}
+
+
+static void show_version(void)
+{
+ fprintf(stderr,
+ "hostapd v" VERSION_STR "\n"
+ "User space daemon for IEEE 802.11 AP management,\n"
+ "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
+ "Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi> "
+ "and contributors\n");
+}
+
+
+static void usage(void)
+{
+ show_version();
+ fprintf(stderr,
+ "\n"
+ "usage: hostapd [-hdBKtv] [-P <PID file>] "
+ "<configuration file(s)>\n"
+ "\n"
+ "options:\n"
+ " -h show this usage\n"
+ " -d show more debug messages (-dd for even more)\n"
+ " -B run daemon in the background\n"
+ " -P PID file\n"
+ " -K include key data in debug messages\n"
+ " -t include timestamps in some debug messages\n"
+ " -v show hostapd version\n");
+
+ exit(1);
+}
+
+
+/**
+ * hostapd_alloc_bss_data - Allocate and initialize per-BSS data
+ * @hapd_iface: Pointer to interface data
+ * @conf: Pointer to per-interface configuration
+ * @bss: Pointer to per-BSS configuration for this BSS
+ * Returns: Pointer to allocated BSS data
+ *
+ * This function is used to allocate per-BSS data structure. This data will be
+ * freed after hostapd_cleanup() is called for it during interface
+ * deinitialization.
+ */
+static struct hostapd_data *
+hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
+ struct hostapd_config *conf,
+ struct hostapd_bss_config *bss)
+{
+ struct hostapd_data *hapd;
+
+ hapd = os_zalloc(sizeof(*hapd));
+ if (hapd == NULL)
+ return NULL;
+
+ hapd->iconf = conf;
+ hapd->conf = bss;
+ hapd->iface = hapd_iface;
+
+ if (hapd->conf->individual_wep_key_len > 0) {
+ /* use key0 in individual key and key1 in broadcast key */
+ hapd->default_wep_key_idx = 1;
+ }
+
+#ifdef EAP_TLS_FUNCS
+ if (hapd->conf->eap_server &&
+ (hapd->conf->ca_cert || hapd->conf->server_cert ||
+ hapd->conf->dh_file)) {
+ struct tls_connection_params params;
+
+ hapd->ssl_ctx = tls_init(NULL);
+ if (hapd->ssl_ctx == NULL) {
+ printf("Failed to initialize TLS\n");
+ goto fail;
+ }
+
+ os_memset(&params, 0, sizeof(params));
+ params.ca_cert = hapd->conf->ca_cert;
+ params.client_cert = hapd->conf->server_cert;
+ params.private_key = hapd->conf->private_key;
+ params.private_key_passwd = hapd->conf->private_key_passwd;
+ params.dh_file = hapd->conf->dh_file;
+
+ if (tls_global_set_params(hapd->ssl_ctx, &params)) {
+ printf("Failed to set TLS parameters\n");
+ goto fail;
+ }
+
+ if (tls_global_set_verify(hapd->ssl_ctx,
+ hapd->conf->check_crl)) {
+ printf("Failed to enable check_crl\n");
+ goto fail;
+ }
+ }
+#endif /* EAP_TLS_FUNCS */
+
+#ifdef EAP_SERVER
+ if (hapd->conf->eap_sim_db) {
+ hapd->eap_sim_db_priv =
+ eap_sim_db_init(hapd->conf->eap_sim_db,
+ hostapd_sim_db_cb, hapd);
+ if (hapd->eap_sim_db_priv == NULL) {
+ printf("Failed to initialize EAP-SIM database "
+ "interface\n");
+ goto fail;
+ }
+ }
+#endif /* EAP_SERVER */
+
+ if (hapd->conf->assoc_ap)
+ hapd->assoc_ap_state = WAIT_BEACON;
+
+ hapd->driver = hapd->iconf->driver;
+
+ return hapd;
+
+#if defined(EAP_TLS_FUNCS) || defined(EAP_SERVER)
+fail:
+#endif
+ /* TODO: cleanup allocated resources(?) */
+ os_free(hapd);
+ return NULL;
+}
+
+
+/**
+ * hostapd_init - Allocate and initialize per-interface data
+ * @config_file: Path to the configuration file
+ * Returns: Pointer to the allocated interface data or %NULL on failure
+ *
+ * This function is used to allocate main data structures for per-interface
+ * data. The allocated data buffer will be freed by calling
+ * hostapd_cleanup_iface().
+ */
+static struct hostapd_iface * hostapd_init(const char *config_file)
+{
+ struct hostapd_iface *hapd_iface = NULL;
+ struct hostapd_config *conf = NULL;
+ struct hostapd_data *hapd;
+ size_t i;
+
+ hapd_iface = os_zalloc(sizeof(*hapd_iface));
+ if (hapd_iface == NULL)
+ goto fail;
+
+ hapd_iface->config_fname = os_strdup(config_file);
+ if (hapd_iface->config_fname == NULL)
+ goto fail;
+
+ conf = hostapd_config_read(hapd_iface->config_fname);
+ if (conf == NULL)
+ goto fail;
+ hapd_iface->conf = conf;
+
+ hapd_iface->num_bss = conf->num_bss;
+ hapd_iface->bss = os_zalloc(conf->num_bss *
+ sizeof(struct hostapd_data *));
+ if (hapd_iface->bss == NULL)
+ goto fail;
+
+ for (i = 0; i < conf->num_bss; i++) {
+ hapd = hapd_iface->bss[i] =
+ hostapd_alloc_bss_data(hapd_iface, conf,
+ &conf->bss[i]);
+ if (hapd == NULL)
+ goto fail;
+ }
+
+ return hapd_iface;
+
+fail:
+ if (conf)
+ hostapd_config_free(conf);
+ if (hapd_iface) {
+ for (i = 0; hapd_iface->bss && i < hapd_iface->num_bss; i++) {
+ hapd = hapd_iface->bss[i];
+ if (hapd && hapd->ssl_ctx)
+ tls_deinit(hapd->ssl_ctx);
+ }
+
+ os_free(hapd_iface->config_fname);
+ os_free(hapd_iface->bss);
+ os_free(hapd_iface);
+ }
+ return NULL;
+}
+
+
+/**
+ * register_drivers - Register driver interfaces
+ *
+ * This function is generated by Makefile (into driver_conf.c) to call all
+ * configured driver interfaces to register them to core hostapd.
+ */
+void register_drivers(void);
+
+
+/**
+ * setup_interface_done - Callback when an interface is done being setup.
+ * @iface: Pointer to interface data.
+ * @status: Status of the interface setup (0 on success; -1 on failure).
+ */
+static void setup_interface_done(struct hostapd_iface *iface, int status)
+{
+ if (status) {
+ wpa_printf(MSG_DEBUG, "%s: Unable to setup interface.",
+ iface->bss[0]->conf->iface);
+ eloop_terminate();
+ } else
+ wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
+ iface->bss[0]->conf->iface);
+}
+
+
+int main(int argc, char *argv[])
+{
+ struct hapd_interfaces interfaces;
+ int ret = 1, k;
+ size_t i, j;
+ int c, debug = 0, daemonize = 0;
+ const char *pid_file = NULL;
+
+ hostapd_logger_register_cb(hostapd_logger_cb);
+
+ for (;;) {
+ c = getopt(argc, argv, "BdhKP:tv");
+ if (c < 0)
+ break;
+ switch (c) {
+ case 'h':
+ usage();
+ break;
+ case 'd':
+ debug++;
+ if (wpa_debug_level > 0)
+ wpa_debug_level--;
+ break;
+ case 'B':
+ daemonize++;
+ break;
+ case 'K':
+ wpa_debug_show_keys++;
+ break;
+ case 'P':
+ pid_file = optarg;
+ break;
+ case 't':
+ wpa_debug_timestamp++;
+ break;
+ case 'v':
+ show_version();
+ exit(1);
+ break;
+
+ default:
+ usage();
+ break;
+ }
+ }
+
+ if (optind == argc)
+ usage();
+
+ if (eap_server_register_methods()) {
+ wpa_printf(MSG_ERROR, "Failed to register EAP methods");
+ return -1;
+ }
+
+ interfaces.count = argc - optind;
+
+ interfaces.iface = os_malloc(interfaces.count *
+ sizeof(struct hostapd_iface *));
+ if (interfaces.iface == NULL) {
+ wpa_printf(MSG_ERROR, "malloc failed\n");
+ return -1;
+ }
+
+ if (eloop_init(&interfaces)) {
+ wpa_printf(MSG_ERROR, "Failed to initialize event loop");
+ return -1;
+ }
+
+#ifndef CONFIG_NATIVE_WINDOWS
+ eloop_register_signal(SIGHUP, handle_reload, NULL);
+ eloop_register_signal(SIGUSR1, handle_dump_state, NULL);
+#endif /* CONFIG_NATIVE_WINDOWS */
+ eloop_register_signal_terminate(handle_term, NULL);
+
+ /* Initialize interfaces */
+ for (i = 0; i < interfaces.count; i++) {
+ printf("Configuration file: %s\n", argv[optind + i]);
+ interfaces.iface[i] = hostapd_init(argv[optind + i]);
+ if (!interfaces.iface[i])
+ goto out;
+ for (k = 0; k < debug; k++) {
+ if (interfaces.iface[i]->bss[0]->conf->
+ logger_stdout_level > 0)
+ interfaces.iface[i]->bss[0]->conf->
+ logger_stdout_level--;
+ }
+
+ ret = hostapd_setup_interface_start(interfaces.iface[i],
+ setup_interface_done);
+ if (ret)
+ goto out;
+ }
+
+ if (daemonize && os_daemonize(pid_file)) {
+ perror("daemon");
+ goto out;
+ }
+
+#ifndef CONFIG_NATIVE_WINDOWS
+ openlog("hostapd", 0, LOG_DAEMON);
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+ eloop_run();
+
+ /* Disconnect associated stations from all interfaces and BSSes */
+ for (i = 0; i < interfaces.count; i++) {
+ for (j = 0; j < interfaces.iface[i]->num_bss; j++) {
+ struct hostapd_data *hapd =
+ interfaces.iface[i]->bss[j];
+ hostapd_free_stas(hapd);
+ hostapd_flush_old_stations(hapd);
+ }
+ }
+
+ ret = 0;
+
+ out:
+ /* Deinitialize all interfaces */
+ for (i = 0; i < interfaces.count; i++) {
+ if (!interfaces.iface[i])
+ continue;
+ hostapd_setup_interface_stop(interfaces.iface[i]);
+ hostapd_cleanup_iface_pre(interfaces.iface[i]);
+ for (j = 0; j < interfaces.iface[i]->num_bss; j++) {
+ struct hostapd_data *hapd =
+ interfaces.iface[i]->bss[j];
+ hostapd_cleanup(hapd);
+ if (j == interfaces.iface[i]->num_bss - 1 &&
+ hapd->driver)
+ hostapd_driver_deinit(hapd);
+ }
+ for (j = 0; j < interfaces.iface[i]->num_bss; j++)
+ os_free(interfaces.iface[i]->bss[j]);
+ hostapd_cleanup_iface(interfaces.iface[i]);
+ }
+ os_free(interfaces.iface);
+
+ eloop_destroy();
+
+#ifndef CONFIG_NATIVE_WINDOWS
+ closelog();
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+ eap_server_unregister_methods();
+
+ os_daemonize_terminate(pid_file);
+
+ return ret;
+}