wpa_supplicant: Initial Revision 0.8.X
Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date: Thu Apr 21 20:41:01 2011 +0300
Enable CONFIG_DRIVER_NL80211=y in the default configuration
nl80211 should be preferred over WEXT with any recent Linux
kernel version.
Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
new file mode 100644
index 0000000..4e5eb01
--- /dev/null
+++ b/src/ap/hostapd.c
@@ -0,0 +1,929 @@
+/*
+ * hostapd / Initialization and configuration
+ * Copyright (c) 2002-2009, 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 "utils/includes.h"
+
+#include "utils/common.h"
+#include "utils/eloop.h"
+#include "common/ieee802_11_defs.h"
+#include "radius/radius_client.h"
+#include "drivers/driver.h"
+#include "hostapd.h"
+#include "authsrv.h"
+#include "sta_info.h"
+#include "accounting.h"
+#include "ap_list.h"
+#include "beacon.h"
+#include "iapp.h"
+#include "ieee802_1x.h"
+#include "ieee802_11_auth.h"
+#include "vlan_init.h"
+#include "wpa_auth.h"
+#include "wps_hostapd.h"
+#include "hw_features.h"
+#include "wpa_auth_glue.h"
+#include "ap_drv_ops.h"
+#include "ap_config.h"
+#include "p2p_hostapd.h"
+
+
+static int hostapd_flush_old_stations(struct hostapd_data *hapd);
+static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd);
+
+extern int wpa_debug_level;
+
+
+static void hostapd_reload_bss(struct hostapd_data *hapd)
+{
+#ifndef CONFIG_NO_RADIUS
+ radius_client_reconfig(hapd->radius, hapd->conf->radius);
+#endif /* CONFIG_NO_RADIUS */
+
+ if (hostapd_setup_wpa_psk(hapd->conf)) {
+ wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
+ "after reloading configuration");
+ }
+
+ if (hapd->conf->ieee802_1x || hapd->conf->wpa)
+ hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1);
+ else
+ hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
+
+ if (hapd->conf->wpa && hapd->wpa_auth == NULL)
+ hostapd_setup_wpa(hapd);
+ else if (hapd->conf->wpa) {
+ const u8 *wpa_ie;
+ size_t wpa_ie_len;
+ hostapd_reconfig_wpa(hapd);
+ 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.");
+ } else if (hapd->wpa_auth) {
+ wpa_deinit(hapd->wpa_auth);
+ hapd->wpa_auth = NULL;
+ hostapd_set_privacy(hapd, 0);
+ hostapd_setup_encryption(hapd->conf->iface, hapd);
+ hostapd_set_generic_elem(hapd, (u8 *) "", 0);
+ }
+
+ ieee802_11_set_beacon(hapd);
+ hostapd_update_wps(hapd);
+
+ if (hapd->conf->ssid.ssid_set &&
+ hostapd_set_ssid(hapd, (u8 *) hapd->conf->ssid.ssid,
+ hapd->conf->ssid.ssid_len)) {
+ wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
+ /* try to continue */
+ }
+ wpa_printf(MSG_DEBUG, "Reconfigured interface %s", hapd->conf->iface);
+}
+
+
+int hostapd_reload_config(struct hostapd_iface *iface)
+{
+ struct hostapd_data *hapd = iface->bss[0];
+ struct hostapd_config *newconf, *oldconf;
+ size_t j;
+
+ if (iface->config_read_cb == NULL)
+ return -1;
+ newconf = iface->config_read_cb(iface->config_fname);
+ if (newconf == NULL)
+ return -1;
+
+ /*
+ * Deauthenticate all stations since the new configuration may not
+ * allow them to use the BSS anymore.
+ */
+ for (j = 0; j < iface->num_bss; j++) {
+ hostapd_flush_old_stations(iface->bss[j]);
+
+#ifndef CONFIG_NO_RADIUS
+ /* TODO: update dynamic data based on changed configuration
+ * items (e.g., open/close sockets, etc.) */
+ radius_client_flush(iface->bss[j]->radius, 0);
+#endif /* CONFIG_NO_RADIUS */
+ }
+
+ oldconf = hapd->iconf;
+ iface->conf = newconf;
+
+ for (j = 0; j < iface->num_bss; j++) {
+ hapd = iface->bss[j];
+ hapd->iconf = newconf;
+ hapd->conf = &newconf->bss[j];
+ hostapd_reload_bss(hapd);
+ }
+
+ hostapd_config_free(oldconf);
+
+
+ return 0;
+}
+
+
+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_drv_set_key(ifname, hapd, WPA_ALG_NONE, NULL, i,
+ 0, NULL, 0, NULL, 0)) {
+ wpa_printf(MSG_DEBUG, "Failed to clear default "
+ "encryption keys (ifname=%s keyidx=%d)",
+ ifname, i);
+ }
+ }
+#ifdef CONFIG_IEEE80211W
+ if (hapd->conf->ieee80211w) {
+ for (i = NUM_WEP_KEYS; i < NUM_WEP_KEYS + 2; i++) {
+ if (hostapd_drv_set_key(ifname, hapd, WPA_ALG_NONE,
+ NULL, i, 0, NULL,
+ 0, NULL, 0)) {
+ wpa_printf(MSG_DEBUG, "Failed to clear "
+ "default mgmt encryption keys "
+ "(ifname=%s keyidx=%d)", ifname, i);
+ }
+ }
+ }
+#endif /* CONFIG_IEEE80211W */
+}
+
+
+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_drv_set_key(hapd->conf->iface,
+ hapd, WPA_ALG_WEP, broadcast_ether_addr, idx,
+ 1, NULL, 0, ssid->wep.key[idx],
+ ssid->wep.len[idx])) {
+ wpa_printf(MSG_WARNING, "Could not set WEP encryption.");
+ 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_drv_set_key(ifname, hapd, WPA_ALG_WEP,
+ broadcast_ether_addr, idx, 1,
+ NULL, 0, key->key[idx],
+ key->len[idx])) {
+ wpa_printf(MSG_WARNING, "Could not set "
+ "dynamic VLAN WEP encryption.");
+ 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)
+{
+ if (hapd->iface->ctrl_iface_deinit)
+ hapd->iface->ctrl_iface_deinit(hapd);
+
+ iapp_deinit(hapd->iapp);
+ hapd->iapp = NULL;
+ accounting_deinit(hapd);
+ hostapd_deinit_wpa(hapd);
+ vlan_deinit(hapd);
+ hostapd_acl_deinit(hapd);
+#ifndef CONFIG_NO_RADIUS
+ radius_client_deinit(hapd->radius);
+ hapd->radius = NULL;
+#endif /* CONFIG_NO_RADIUS */
+
+ hostapd_deinit_wps(hapd);
+
+ authsrv_deinit(hapd);
+
+ if (hapd->interface_added &&
+ hostapd_if_remove(hapd, WPA_IF_AP_BSS, hapd->conf->iface)) {
+ wpa_printf(MSG_WARNING, "Failed to remove BSS interface %s",
+ hapd->conf->iface);
+ }
+
+ os_free(hapd->probereq_cb);
+ hapd->probereq_cb = NULL;
+
+#ifdef CONFIG_P2P
+ wpabuf_free(hapd->p2p_beacon_ie);
+ hapd->p2p_beacon_ie = NULL;
+ wpabuf_free(hapd->p2p_probe_resp_ie);
+ hapd->p2p_probe_resp_ie = NULL;
+#endif /* CONFIG_P2P */
+}
+
+
+/**
+ * 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) {
+ hostapd_set_privacy(hapd, 1);
+ return 0;
+ }
+
+ for (i = 0; i < 4; i++) {
+ if (hapd->conf->ssid.wep.key[i] &&
+ hostapd_drv_set_key(iface, hapd, WPA_ALG_WEP, NULL, i,
+ i == hapd->conf->ssid.wep.idx, NULL, 0,
+ hapd->conf->ssid.wep.key[i],
+ hapd->conf->ssid.wep.len[i])) {
+ wpa_printf(MSG_WARNING, "Could not set WEP "
+ "encryption.");
+ 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;
+ u8 addr[ETH_ALEN];
+
+ if (hostapd_drv_none(hapd) || hapd->drv_priv == NULL)
+ return 0;
+
+ wpa_printf(MSG_DEBUG, "Flushing old station entries");
+ if (hostapd_flush(hapd)) {
+ wpa_printf(MSG_WARNING, "Could not connect to kernel driver.");
+ ret = -1;
+ }
+ wpa_printf(MSG_DEBUG, "Deauthenticate all stations");
+ os_memset(addr, 0xff, ETH_ALEN);
+ hostapd_drv_sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
+ hostapd_free_stas(hapd);
+
+ return ret;
+}
+
+
+/**
+ * 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;
+ int auto_addr = 0;
+
+ if (hostapd_drv_none(hapd))
+ return 0;
+
+ /* 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) {
+ if (j)
+ auto_addr++;
+ continue;
+ }
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ mask[i] |=
+ iface->conf->bss[j].bssid[i] ^
+ hapd->own_addr[i];
+ }
+ }
+
+ if (!auto_addr)
+ goto skip_mask_ext;
+
+ 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) {
+ wpa_printf(MSG_ERROR, "Too many bits in the BSSID mask (%u)",
+ bits);
+ 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;
+
+skip_mask_ext:
+ 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) {
+ wpa_printf(MSG_ERROR, "Driver did not accept BSSID mask "
+ MACSTR " for start address " MACSTR ".",
+ MAC2STR(mask), MAC2STR(hapd->own_addr));
+ return -1;
+ }
+
+ if (!auto_addr)
+ return 0;
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
+ wpa_printf(MSG_ERROR, "Invalid BSSID mask " MACSTR
+ " for start address " MACSTR ".",
+ MAC2STR(mask), MAC2STR(hapd->own_addr));
+ wpa_printf(MSG_ERROR, "Start address must be the "
+ "first address in the block (i.e., addr "
+ "AND mask == 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;
+}
+
+
+
+
+/**
+ * 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;
+ char force_ifname[IFNAMSIZ];
+ u8 if_addr[ETH_ALEN];
+
+ 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) {
+ wpa_printf(MSG_ERROR, "BSS '%s' may not have "
+ "BSSID set to the MAC address of "
+ "the radio", hapd->conf->iface);
+ return -1;
+ }
+ }
+
+ hapd->interface_added = 1;
+ if (hostapd_if_add(hapd->iface->bss[0], WPA_IF_AP_BSS,
+ hapd->conf->iface, hapd->own_addr, hapd,
+ &hapd->drv_priv, force_ifname, if_addr,
+ hapd->conf->bridge[0] ? hapd->conf->bridge :
+ NULL)) {
+ wpa_printf(MSG_ERROR, "Failed to add BSS (BSSID="
+ MACSTR ")", MAC2STR(hapd->own_addr));
+ return -1;
+ }
+ }
+
+ if (conf->wmm_enabled < 0)
+ conf->wmm_enabled = hapd->iconf->ieee80211n;
+
+ hostapd_flush_old_stations(hapd);
+ hostapd_set_privacy(hapd, 0);
+
+ hostapd_broadcast_wep_clear(hapd);
+ if (hostapd_setup_encryption(hapd->conf->iface, hapd))
+ 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) {
+ wpa_printf(MSG_ERROR, "Could not read SSID from system");
+ 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';
+ }
+
+ if (!hostapd_drv_none(hapd)) {
+ wpa_printf(MSG_ERROR, "Using interface %s with hwaddr " MACSTR
+ " and ssid '%s'",
+ hapd->conf->iface, MAC2STR(hapd->own_addr),
+ hapd->conf->ssid.ssid);
+ }
+
+ if (hostapd_setup_wpa_psk(conf)) {
+ wpa_printf(MSG_ERROR, "WPA-PSK setup failed.");
+ 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)) {
+ wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
+ return -1;
+ }
+
+ if (wpa_debug_level == MSG_MSGDUMP)
+ conf->radius->msg_dumps = 1;
+#ifndef CONFIG_NO_RADIUS
+ hapd->radius = radius_client_init(hapd, conf->radius);
+ if (hapd->radius == NULL) {
+ wpa_printf(MSG_ERROR, "RADIUS client initialization failed.");
+ return -1;
+ }
+#endif /* CONFIG_NO_RADIUS */
+
+ if (hostapd_acl_init(hapd)) {
+ wpa_printf(MSG_ERROR, "ACL initialization failed.");
+ return -1;
+ }
+ if (hostapd_init_wps(hapd, conf))
+ return -1;
+
+ if (authsrv_init(hapd) < 0)
+ return -1;
+
+ if (ieee802_1x_init(hapd)) {
+ wpa_printf(MSG_ERROR, "IEEE 802.1X initialization failed.");
+ return -1;
+ }
+
+ if (hapd->conf->wpa && hostapd_setup_wpa(hapd))
+ return -1;
+
+ if (accounting_init(hapd)) {
+ wpa_printf(MSG_ERROR, "Accounting initialization failed.");
+ return -1;
+ }
+
+ if (hapd->conf->ieee802_11f &&
+ (hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
+ wpa_printf(MSG_ERROR, "IEEE 802.11F (IAPP) initialization "
+ "failed.");
+ return -1;
+ }
+
+ if (hapd->iface->ctrl_iface_init &&
+ hapd->iface->ctrl_iface_init(hapd)) {
+ wpa_printf(MSG_ERROR, "Failed to setup control interface");
+ return -1;
+ }
+
+ if (!hostapd_drv_none(hapd) && vlan_init(hapd)) {
+ wpa_printf(MSG_ERROR, "VLAN initialization failed.");
+ return -1;
+ }
+
+ ieee802_11_set_beacon(hapd);
+
+ if (hapd->driver && hapd->driver->set_operstate)
+ hapd->driver->set_operstate(hapd->drv_priv, 1);
+
+ return 0;
+}
+
+
+static void hostapd_tx_queue_params(struct hostapd_iface *iface)
+{
+ struct hostapd_data *hapd = iface->bss[0];
+ int i;
+ struct hostapd_tx_queue_params *p;
+
+ for (i = 0; i < NUM_TX_QUEUES; i++) {
+ p = &iface->conf->tx_queue[i];
+
+ if (hostapd_set_tx_queue_params(hapd, i, p->aifs, p->cwmin,
+ p->cwmax, p->burst)) {
+ wpa_printf(MSG_DEBUG, "Failed to set TX queue "
+ "parameters for queue %d.", i);
+ /* Continue anyway */
+ }
+ }
+}
+
+
+static int setup_interface(struct hostapd_iface *iface)
+{
+ struct hostapd_data *hapd = iface->bss[0];
+ size_t i;
+ char country[4];
+
+ /*
+ * Make sure that all BSSes get configured with a pointer to the same
+ * driver interface.
+ */
+ for (i = 1; 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;
+
+ if (hapd->iconf->country[0] && hapd->iconf->country[1]) {
+ os_memcpy(country, hapd->iconf->country, 3);
+ country[3] = '\0';
+ if (hostapd_set_country(hapd, country) < 0) {
+ wpa_printf(MSG_ERROR, "Failed to set country code");
+ return -1;
+ }
+ }
+
+ if (hostapd_get_hw_features(iface)) {
+ /* Not all drivers support this yet, so continue without hw
+ * feature data. */
+ } else {
+ int ret = hostapd_select_hw_mode(iface);
+ if (ret < 0) {
+ wpa_printf(MSG_ERROR, "Could not select hw_mode and "
+ "channel. (%d)", ret);
+ return -1;
+ }
+ ret = hostapd_check_ht_capab(iface);
+ if (ret < 0)
+ return -1;
+ if (ret == 1) {
+ wpa_printf(MSG_DEBUG, "Interface initialization will "
+ "be completed in a callback");
+ return 0;
+ }
+ }
+ return hostapd_setup_interface_complete(iface, 0);
+}
+
+
+int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err)
+{
+ struct hostapd_data *hapd = iface->bss[0];
+ size_t j;
+ u8 *prev_addr;
+
+ if (err) {
+ wpa_printf(MSG_ERROR, "Interface initialization failed");
+ eloop_terminate();
+ return -1;
+ }
+
+ wpa_printf(MSG_DEBUG, "Completing interface initialization");
+ if (hapd->iconf->channel) {
+ iface->freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
+ wpa_printf(MSG_DEBUG, "Mode: %s Channel: %d "
+ "Frequency: %d MHz",
+ hostapd_hw_mode_txt(hapd->iconf->hw_mode),
+ hapd->iconf->channel, iface->freq);
+
+ if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, iface->freq,
+ hapd->iconf->channel,
+ hapd->iconf->ieee80211n,
+ hapd->iconf->secondary_channel)) {
+ wpa_printf(MSG_ERROR, "Could not set channel for "
+ "kernel driver");
+ return -1;
+ }
+ }
+
+ if (iface->current_mode) {
+ if (hostapd_prepare_rates(hapd, iface->current_mode)) {
+ wpa_printf(MSG_ERROR, "Failed to prepare rates "
+ "table.");
+ hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
+ HOSTAPD_LEVEL_WARNING,
+ "Failed to prepare rates table.");
+ return -1;
+ }
+ }
+
+ if (hapd->iconf->rts_threshold > -1 &&
+ hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
+ wpa_printf(MSG_ERROR, "Could not set RTS threshold for "
+ "kernel driver");
+ return -1;
+ }
+
+ if (hapd->iconf->fragm_threshold > -1 &&
+ hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
+ wpa_printf(MSG_ERROR, "Could not set fragmentation threshold "
+ "for kernel driver");
+ 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;
+ }
+
+ hostapd_tx_queue_params(iface);
+
+ ap_list_init(iface);
+
+ if (hostapd_driver_commit(hapd) < 0) {
+ wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
+ "configuration", __func__);
+ return -1;
+ }
+
+ if (hapd->setup_complete_cb)
+ hapd->setup_complete_cb(hapd->setup_complete_cb_ctx);
+
+ wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
+ iface->bss[0]->conf->iface);
+
+ return 0;
+}
+
+
+/**
+ * hostapd_setup_interface - Setup of an interface
+ * @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.
+ * Flushes old stations, sets the channel, encryption,
+ * beacons, and WDS links based on the configuration.
+ */
+int hostapd_setup_interface(struct hostapd_iface *iface)
+{
+ int ret;
+
+ ret = setup_interface(iface);
+ if (ret) {
+ wpa_printf(MSG_ERROR, "%s: Unable to setup interface.",
+ iface->bss[0]->conf->iface);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+/**
+ * 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.
+ */
+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->new_assoc_sta_cb = hostapd_new_assoc_sta;
+ hapd->iconf = conf;
+ hapd->conf = bss;
+ hapd->iface = hapd_iface;
+ hapd->driver = hapd->iconf->driver;
+
+ return hapd;
+}
+
+
+void hostapd_interface_deinit(struct hostapd_iface *iface)
+{
+ size_t j;
+
+ if (iface == NULL)
+ return;
+
+ hostapd_cleanup_iface_pre(iface);
+ for (j = 0; j < iface->num_bss; j++) {
+ struct hostapd_data *hapd = iface->bss[j];
+ hostapd_free_stas(hapd);
+ hostapd_flush_old_stations(hapd);
+ hostapd_cleanup(hapd);
+ }
+}
+
+
+void hostapd_interface_free(struct hostapd_iface *iface)
+{
+ size_t j;
+ for (j = 0; j < iface->num_bss; j++)
+ os_free(iface->bss[j]);
+ hostapd_cleanup_iface(iface);
+}
+
+
+/**
+ * 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 from ieee802_11.c for drivers that export MLME to hostapd and
+ * from drv_callbacks.c based on driver events 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_drv_sta_deauth(hapd, sta->addr,
+ WLAN_REASON_MICHAEL_MIC_FAILURE);
+ return;
+ }
+
+ hostapd_prune_associations(hapd, sta->addr);
+
+ /* IEEE 802.11F (IAPP) */
+ if (hapd->conf->ieee802_11f)
+ iapp_new_station(hapd->iapp, sta);
+
+#ifdef CONFIG_P2P
+ if (sta->p2p_ie == NULL && !sta->no_p2p_set) {
+ sta->no_p2p_set = 1;
+ hapd->num_sta_no_p2p++;
+ if (hapd->num_sta_no_p2p == 1)
+ hostapd_p2p_non_p2p_sta_connected(hapd);
+ }
+#endif /* CONFIG_P2P */
+
+ /* 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);
+
+ /* Start IEEE 802.1X authentication process for new stations */
+ ieee802_1x_new_station(hapd, sta);
+ if (reassoc) {
+ if (sta->auth_alg != WLAN_AUTH_FT &&
+ !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)))
+ wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH);
+ } else
+ wpa_auth_sta_associated(hapd->wpa_auth, sta->wpa_sm);
+}