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ap.c
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/*
* WPA Supplicant - Basic AP mode support routines
* Copyright (c) 2003-2009, Jouni Malinen <[email protected]>
* Copyright (c) 2009, Atheros Communications
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "utils/includes.h"
#include "utils/common.h"
#include "utils/eloop.h"
#include "utils/uuid.h"
#include "common/ieee802_11_defs.h"
#include "common/wpa_ctrl.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "crypto/dh_group5.h"
#include "ap/hostapd.h"
#include "ap/ap_config.h"
#include "ap/ap_drv_ops.h"
#ifdef NEED_AP_MLME
#include "ap/ieee802_11.h"
#endif /* NEED_AP_MLME */
#include "ap/beacon.h"
#include "ap/ieee802_1x.h"
#include "ap/wps_hostapd.h"
#include "ap/ctrl_iface_ap.h"
#include "wps/wps.h"
#include "common/ieee802_11_defs.h"
#include "config_ssid.h"
#include "config.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "p2p_supplicant.h"
#include "ap.h"
#include "ap/sta_info.h"
#include "notify.h"
#ifdef CONFIG_WPS
static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
#endif /* CONFIG_WPS */
#ifdef CONFIG_IEEE80211N
static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s,
struct hostapd_config *conf,
struct hostapd_hw_modes *mode)
{
#ifdef CONFIG_P2P
u8 center_chan = 0;
u8 channel = conf->channel;
if (!conf->secondary_channel)
goto no_vht;
center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel);
if (!center_chan)
goto no_vht;
/* Use 80 MHz channel */
conf->vht_oper_chwidth = 1;
conf->vht_oper_centr_freq_seg0_idx = center_chan;
return;
no_vht:
conf->vht_oper_centr_freq_seg0_idx =
channel + conf->secondary_channel * 2;
#else /* CONFIG_P2P */
conf->vht_oper_centr_freq_seg0_idx =
conf->channel + conf->secondary_channel * 2;
#endif /* CONFIG_P2P */
}
#endif /* CONFIG_IEEE80211N */
static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid,
struct hostapd_config *conf)
{
struct hostapd_bss_config *bss = conf->bss[0];
conf->driver = wpa_s->driver;
os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
&conf->channel);
if (conf->hw_mode == NUM_HOSTAPD_MODES) {
wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
ssid->frequency);
return -1;
}
/* TODO: enable HT40 if driver supports it;
* drop to 11b if driver does not support 11g */
#ifdef CONFIG_IEEE80211N
/*
* Enable HT20 if the driver supports it, by setting conf->ieee80211n
* and a mask of allowed capabilities within conf->ht_capab.
* Using default config settings for: conf->ht_op_mode_fixed,
* conf->secondary_channel, conf->require_ht
*/
if (wpa_s->hw.modes) {
struct hostapd_hw_modes *mode = NULL;
int i, no_ht = 0;
for (i = 0; i < wpa_s->hw.num_modes; i++) {
if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
mode = &wpa_s->hw.modes[i];
break;
}
}
#ifdef CONFIG_HT_OVERRIDES
if (ssid->disable_ht) {
conf->ieee80211n = 0;
conf->ht_capab = 0;
no_ht = 1;
}
#endif /* CONFIG_HT_OVERRIDES */
if (!no_ht && mode && mode->ht_capab) {
conf->ieee80211n = 1;
#ifdef CONFIG_P2P
if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
(mode->ht_capab &
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
ssid->ht40)
conf->secondary_channel =
wpas_p2p_get_ht40_mode(wpa_s, mode,
conf->channel);
if (conf->secondary_channel)
conf->ht_capab |=
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
#endif /* CONFIG_P2P */
/*
* white-list capabilities that won't cause issues
* to connecting stations, while leaving the current
* capabilities intact (currently disabled SMPS).
*/
conf->ht_capab |= mode->ht_capab &
(HT_CAP_INFO_GREEN_FIELD |
HT_CAP_INFO_SHORT_GI20MHZ |
HT_CAP_INFO_SHORT_GI40MHZ |
HT_CAP_INFO_RX_STBC_MASK |
HT_CAP_INFO_MAX_AMSDU_SIZE);
if (mode->vht_capab && ssid->vht) {
conf->ieee80211ac = 1;
wpas_conf_ap_vht(wpa_s, conf, mode);
}
}
}
#endif /* CONFIG_IEEE80211N */
#ifdef CONFIG_P2P
if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G &&
(ssid->mode == WPAS_MODE_P2P_GO ||
ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) {
/* Remove 802.11b rates from supported and basic rate sets */
int *list = os_malloc(4 * sizeof(int));
if (list) {
list[0] = 60;
list[1] = 120;
list[2] = 240;
list[3] = -1;
}
conf->basic_rates = list;
list = os_malloc(9 * sizeof(int));
if (list) {
list[0] = 60;
list[1] = 90;
list[2] = 120;
list[3] = 180;
list[4] = 240;
list[5] = 360;
list[6] = 480;
list[7] = 540;
list[8] = -1;
}
conf->supported_rates = list;
}
bss->isolate = !wpa_s->conf->p2p_intra_bss;
bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
if (ssid->p2p_group) {
os_memcpy(bss->ip_addr_go, wpa_s->parent->conf->ip_addr_go, 4);
os_memcpy(bss->ip_addr_mask, wpa_s->parent->conf->ip_addr_mask,
4);
os_memcpy(bss->ip_addr_start,
wpa_s->parent->conf->ip_addr_start, 4);
os_memcpy(bss->ip_addr_end, wpa_s->parent->conf->ip_addr_end,
4);
}
#endif /* CONFIG_P2P */
if (ssid->ssid_len == 0) {
wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
return -1;
}
os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
bss->ssid.ssid_len = ssid->ssid_len;
bss->ssid.ssid_set = 1;
bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
if (ssid->auth_alg)
bss->auth_algs = ssid->auth_alg;
if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
bss->wpa = ssid->proto;
bss->wpa_key_mgmt = ssid->key_mgmt;
bss->wpa_pairwise = ssid->pairwise_cipher;
if (ssid->psk_set) {
os_free(bss->ssid.wpa_psk);
bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
if (bss->ssid.wpa_psk == NULL)
return -1;
os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
bss->ssid.wpa_psk->group = 1;
} else if (ssid->passphrase) {
bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
} else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
struct hostapd_wep_keys *wep = &bss->ssid.wep;
int i;
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (ssid->wep_key_len[i] == 0)
continue;
wep->key[i] = os_malloc(ssid->wep_key_len[i]);
if (wep->key[i] == NULL)
return -1;
os_memcpy(wep->key[i], ssid->wep_key[i],
ssid->wep_key_len[i]);
wep->len[i] = ssid->wep_key_len[i];
}
wep->idx = ssid->wep_tx_keyidx;
wep->keys_set = 1;
}
if (ssid->ap_max_inactivity)
bss->ap_max_inactivity = ssid->ap_max_inactivity;
if (ssid->dtim_period)
bss->dtim_period = ssid->dtim_period;
else if (wpa_s->conf->dtim_period)
bss->dtim_period = wpa_s->conf->dtim_period;
if (ssid->beacon_int)
conf->beacon_int = ssid->beacon_int;
else if (wpa_s->conf->beacon_int)
conf->beacon_int = wpa_s->conf->beacon_int;
if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
bss->rsn_pairwise = bss->wpa_pairwise;
bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
bss->rsn_pairwise);
if (bss->wpa && bss->ieee802_1x)
bss->ssid.security_policy = SECURITY_WPA;
else if (bss->wpa)
bss->ssid.security_policy = SECURITY_WPA_PSK;
else if (bss->ieee802_1x) {
int cipher = WPA_CIPHER_NONE;
bss->ssid.security_policy = SECURITY_IEEE_802_1X;
bss->ssid.wep.default_len = bss->default_wep_key_len;
if (bss->default_wep_key_len)
cipher = bss->default_wep_key_len >= 13 ?
WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
bss->wpa_group = cipher;
bss->wpa_pairwise = cipher;
bss->rsn_pairwise = cipher;
} else if (bss->ssid.wep.keys_set) {
int cipher = WPA_CIPHER_WEP40;
if (bss->ssid.wep.len[0] >= 13)
cipher = WPA_CIPHER_WEP104;
bss->ssid.security_policy = SECURITY_STATIC_WEP;
bss->wpa_group = cipher;
bss->wpa_pairwise = cipher;
bss->rsn_pairwise = cipher;
} else {
bss->ssid.security_policy = SECURITY_PLAINTEXT;
bss->wpa_group = WPA_CIPHER_NONE;
bss->wpa_pairwise = WPA_CIPHER_NONE;
bss->rsn_pairwise = WPA_CIPHER_NONE;
}
if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) &&
(bss->wpa_group == WPA_CIPHER_CCMP ||
bss->wpa_group == WPA_CIPHER_GCMP ||
bss->wpa_group == WPA_CIPHER_CCMP_256 ||
bss->wpa_group == WPA_CIPHER_GCMP_256)) {
/*
* Strong ciphers do not need frequent rekeying, so increase
* the default GTK rekeying period to 24 hours.
*/
bss->wpa_group_rekey = 86400;
}
#ifdef CONFIG_IEEE80211W
if (ssid->ieee80211w != MGMT_FRAME_PROTECTION_DEFAULT)
bss->ieee80211w = ssid->ieee80211w;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_WPS
/*
* Enable WPS by default for open and WPA/WPA2-Personal network, but
* require user interaction to actually use it. Only the internal
* Registrar is supported.
*/
if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
bss->ssid.security_policy != SECURITY_PLAINTEXT)
goto no_wps;
if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
(!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
goto no_wps; /* WPS2 does not allow WPA/TKIP-only
* configuration */
bss->eap_server = 1;
if (!ssid->ignore_broadcast_ssid)
bss->wps_state = 2;
bss->ap_setup_locked = 2;
if (wpa_s->conf->config_methods)
bss->config_methods = os_strdup(wpa_s->conf->config_methods);
os_memcpy(bss->device_type, wpa_s->conf->device_type,
WPS_DEV_TYPE_LEN);
if (wpa_s->conf->device_name) {
bss->device_name = os_strdup(wpa_s->conf->device_name);
bss->friendly_name = os_strdup(wpa_s->conf->device_name);
}
if (wpa_s->conf->manufacturer)
bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
if (wpa_s->conf->model_name)
bss->model_name = os_strdup(wpa_s->conf->model_name);
if (wpa_s->conf->model_number)
bss->model_number = os_strdup(wpa_s->conf->model_number);
if (wpa_s->conf->serial_number)
bss->serial_number = os_strdup(wpa_s->conf->serial_number);
if (is_nil_uuid(wpa_s->conf->uuid))
os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
else
os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
no_wps:
#endif /* CONFIG_WPS */
if (wpa_s->max_stations &&
wpa_s->max_stations < wpa_s->conf->max_num_sta)
bss->max_num_sta = wpa_s->max_stations;
else
bss->max_num_sta = wpa_s->conf->max_num_sta;
bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
if (wpa_s->conf->ap_vendor_elements) {
bss->vendor_elements =
wpabuf_dup(wpa_s->conf->ap_vendor_elements);
}
return 0;
}
static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
{
#ifdef CONFIG_P2P
struct wpa_supplicant *wpa_s = ctx;
const struct ieee80211_mgmt *mgmt;
size_t hdr_len;
mgmt = (const struct ieee80211_mgmt *) buf;
hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
if (hdr_len > len)
return;
if (mgmt->u.action.category != WLAN_ACTION_PUBLIC)
return;
wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
mgmt->u.action.category,
&mgmt->u.action.u.vs_public_action.action,
len - hdr_len, freq);
#endif /* CONFIG_P2P */
}
static void ap_wps_event_cb(void *ctx, enum wps_event event,
union wps_event_data *data)
{
#ifdef CONFIG_P2P
struct wpa_supplicant *wpa_s = ctx;
if (event == WPS_EV_FAIL) {
struct wps_event_fail *fail = &data->fail;
if (wpa_s->parent && wpa_s->parent != wpa_s &&
wpa_s == wpa_s->global->p2p_group_formation) {
/*
* src/ap/wps_hostapd.c has already sent this on the
* main interface, so only send on the parent interface
* here if needed.
*/
wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
"msg=%d config_error=%d",
fail->msg, fail->config_error);
}
wpas_p2p_wps_failed(wpa_s, fail);
}
#endif /* CONFIG_P2P */
}
static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
int authorized, const u8 *p2p_dev_addr)
{
wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
}
#ifdef CONFIG_P2P
static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr,
const u8 *psk, size_t psk_len)
{
struct wpa_supplicant *wpa_s = ctx;
if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL)
return;
wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len);
}
#endif /* CONFIG_P2P */
static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
{
#ifdef CONFIG_P2P
struct wpa_supplicant *wpa_s = ctx;
const struct ieee80211_mgmt *mgmt;
size_t hdr_len;
mgmt = (const struct ieee80211_mgmt *) buf;
hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
if (hdr_len > len)
return -1;
wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
mgmt->u.action.category,
&mgmt->u.action.u.vs_public_action.action,
len - hdr_len, freq);
#endif /* CONFIG_P2P */
return 0;
}
static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
const u8 *bssid, const u8 *ie, size_t ie_len,
int ssi_signal)
{
#ifdef CONFIG_P2P
struct wpa_supplicant *wpa_s = ctx;
return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
ssi_signal);
#else /* CONFIG_P2P */
return 0;
#endif /* CONFIG_P2P */
}
static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
const u8 *uuid_e)
{
#ifdef CONFIG_P2P
struct wpa_supplicant *wpa_s = ctx;
wpas_p2p_wps_success(wpa_s, mac_addr, 1);
#endif /* CONFIG_P2P */
}
static void wpas_ap_configured_cb(void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
if (wpa_s->ap_configured_cb)
wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
wpa_s->ap_configured_cb_data);
}
int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
struct wpa_driver_associate_params params;
struct hostapd_iface *hapd_iface;
struct hostapd_config *conf;
size_t i;
if (ssid->ssid == NULL || ssid->ssid_len == 0) {
wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
return -1;
}
wpa_supplicant_ap_deinit(wpa_s);
wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
os_memset(¶ms, 0, sizeof(params));
params.ssid = ssid->ssid;
params.ssid_len = ssid->ssid_len;
switch (ssid->mode) {
case WPAS_MODE_AP:
case WPAS_MODE_P2P_GO:
case WPAS_MODE_P2P_GROUP_FORMATION:
params.mode = IEEE80211_MODE_AP;
break;
default:
return -1;
}
if (ssid->frequency == 0)
ssid->frequency = 2462; /* default channel 11 */
params.freq = ssid->frequency;
params.wpa_proto = ssid->proto;
if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
else
wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
params.key_mgmt_suite = wpa_s->key_mgmt;
wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
1);
if (wpa_s->pairwise_cipher < 0) {
wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
"cipher.");
return -1;
}
params.pairwise_suite = wpa_s->pairwise_cipher;
params.group_suite = params.pairwise_suite;
#ifdef CONFIG_P2P
if (ssid->mode == WPAS_MODE_P2P_GO ||
ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
params.p2p = 1;
#endif /* CONFIG_P2P */
if (wpa_s->parent->set_ap_uapsd)
params.uapsd = wpa_s->parent->ap_uapsd;
else if (params.p2p && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD))
params.uapsd = 1; /* mandatory for P2P GO */
else
params.uapsd = -1;
if (wpa_drv_associate(wpa_s, ¶ms) < 0) {
wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
return -1;
}
wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
if (hapd_iface == NULL)
return -1;
hapd_iface->owner = wpa_s;
hapd_iface->drv_flags = wpa_s->drv_flags;
hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
hapd_iface->extended_capa = wpa_s->extended_capa;
hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
if (conf == NULL) {
wpa_supplicant_ap_deinit(wpa_s);
return -1;
}
os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
wpa_s->conf->wmm_ac_params,
sizeof(wpa_s->conf->wmm_ac_params));
if (params.uapsd > 0) {
conf->bss[0]->wmm_enabled = 1;
conf->bss[0]->wmm_uapsd = 1;
}
if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
wpa_printf(MSG_ERROR, "Failed to create AP configuration");
wpa_supplicant_ap_deinit(wpa_s);
return -1;
}
#ifdef CONFIG_P2P
if (ssid->mode == WPAS_MODE_P2P_GO)
conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
P2P_GROUP_FORMATION;
#endif /* CONFIG_P2P */
hapd_iface->num_bss = conf->num_bss;
hapd_iface->bss = os_calloc(conf->num_bss,
sizeof(struct hostapd_data *));
if (hapd_iface->bss == NULL) {
wpa_supplicant_ap_deinit(wpa_s);
return -1;
}
for (i = 0; i < conf->num_bss; i++) {
hapd_iface->bss[i] =
hostapd_alloc_bss_data(hapd_iface, conf,
conf->bss[i]);
if (hapd_iface->bss[i] == NULL) {
wpa_supplicant_ap_deinit(wpa_s);
return -1;
}
hapd_iface->bss[i]->msg_ctx = wpa_s;
hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
hostapd_register_probereq_cb(hapd_iface->bss[i],
ap_probe_req_rx, wpa_s);
hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
#ifdef CONFIG_P2P
hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
ssid);
#endif /* CONFIG_P2P */
hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
}
os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
hapd_iface->bss[0]->driver = wpa_s->driver;
hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
wpa_s->current_ssid = ssid;
eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
wpa_s->assoc_freq = ssid->frequency;
if (hostapd_setup_interface(wpa_s->ap_iface)) {
wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
wpa_supplicant_ap_deinit(wpa_s);
return -1;
}
return 0;
}
void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
{
#ifdef CONFIG_WPS
eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
#endif /* CONFIG_WPS */
if (wpa_s->ap_iface == NULL)
return;
wpa_s->current_ssid = NULL;
eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
wpa_s->assoc_freq = 0;
#ifdef CONFIG_P2P
if (wpa_s->ap_iface->bss)
wpa_s->ap_iface->bss[0]->p2p_group = NULL;
wpas_p2p_group_deinit(wpa_s);
#endif /* CONFIG_P2P */
wpa_s->ap_iface->driver_ap_teardown =
!!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
hostapd_interface_deinit(wpa_s->ap_iface);
hostapd_interface_free(wpa_s->ap_iface);
wpa_s->ap_iface = NULL;
wpa_drv_deinit_ap(wpa_s);
}
void ap_tx_status(void *ctx, const u8 *addr,
const u8 *buf, size_t len, int ack)
{
#ifdef NEED_AP_MLME
struct wpa_supplicant *wpa_s = ctx;
hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
#endif /* NEED_AP_MLME */
}
void ap_eapol_tx_status(void *ctx, const u8 *dst,
const u8 *data, size_t len, int ack)
{
#ifdef NEED_AP_MLME
struct wpa_supplicant *wpa_s = ctx;
if (!wpa_s->ap_iface)
return;
hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
#endif /* NEED_AP_MLME */
}
void ap_client_poll_ok(void *ctx, const u8 *addr)
{
#ifdef NEED_AP_MLME
struct wpa_supplicant *wpa_s = ctx;
if (wpa_s->ap_iface)
hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
#endif /* NEED_AP_MLME */
}
void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
{
#ifdef NEED_AP_MLME
struct wpa_supplicant *wpa_s = ctx;
ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
#endif /* NEED_AP_MLME */
}
void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
{
#ifdef NEED_AP_MLME
struct wpa_supplicant *wpa_s = ctx;
struct hostapd_frame_info fi;
os_memset(&fi, 0, sizeof(fi));
fi.datarate = rx_mgmt->datarate;
fi.ssi_signal = rx_mgmt->ssi_signal;
ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
rx_mgmt->frame_len, &fi);
#endif /* NEED_AP_MLME */
}
void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
{
#ifdef NEED_AP_MLME
struct wpa_supplicant *wpa_s = ctx;
ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
#endif /* NEED_AP_MLME */
}
void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
const u8 *src_addr, const u8 *buf, size_t len)
{
ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
}
#ifdef CONFIG_WPS
int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
const u8 *p2p_dev_addr)
{
if (!wpa_s->ap_iface)
return -1;
return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
p2p_dev_addr);
}
int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
{
struct wps_registrar *reg;
int reg_sel = 0, wps_sta = 0;
if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
return -1;
reg = wpa_s->ap_iface->bss[0]->wps->registrar;
reg_sel = wps_registrar_wps_cancel(reg);
wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
ap_sta_wps_cancel, NULL);
if (!reg_sel && !wps_sta) {
wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
"time");
return -1;
}
/*
* There are 2 cases to return wps cancel as success:
* 1. When wps cancel was initiated but no connection has been
* established with client yet.
* 2. Client is in the middle of exchanging WPS messages.
*/
return 0;
}
int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
const char *pin, char *buf, size_t buflen,
int timeout)
{
int ret, ret_len = 0;
if (!wpa_s->ap_iface)
return -1;
if (pin == NULL) {
unsigned int rpin = wps_generate_pin();
ret_len = os_snprintf(buf, buflen, "%08d", rpin);
pin = buf;
} else
ret_len = os_snprintf(buf, buflen, "%s", pin);
ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
timeout);
if (ret)
return -1;
return ret_len;
}
static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
{
struct wpa_supplicant *wpa_s = eloop_data;
wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
wpas_wps_ap_pin_disable(wpa_s);
}
static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
{
struct hostapd_data *hapd;
if (wpa_s->ap_iface == NULL)
return;
hapd = wpa_s->ap_iface->bss[0];
wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
hapd->ap_pin_failures = 0;
eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
if (timeout > 0)
eloop_register_timeout(timeout, 0,
wpas_wps_ap_pin_timeout, wpa_s, NULL);
}
void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
{
struct hostapd_data *hapd;
if (wpa_s->ap_iface == NULL)
return;
wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
hapd = wpa_s->ap_iface->bss[0];
os_free(hapd->conf->ap_pin);
hapd->conf->ap_pin = NULL;
eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
}
const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
{
struct hostapd_data *hapd;
unsigned int pin;
char pin_txt[9];
if (wpa_s->ap_iface == NULL)
return NULL;
hapd = wpa_s->ap_iface->bss[0];
pin = wps_generate_pin();
os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
os_free(hapd->conf->ap_pin);
hapd->conf->ap_pin = os_strdup(pin_txt);
if (hapd->conf->ap_pin == NULL)
return NULL;
wpas_wps_ap_pin_enable(wpa_s, timeout);
return hapd->conf->ap_pin;
}
const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
{
struct hostapd_data *hapd;
if (wpa_s->ap_iface == NULL)
return NULL;
hapd = wpa_s->ap_iface->bss[0];
return hapd->conf->ap_pin;
}
int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
int timeout)
{
struct hostapd_data *hapd;
char pin_txt[9];
int ret;
if (wpa_s->ap_iface == NULL)
return -1;
hapd = wpa_s->ap_iface->bss[0];
ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
if (ret < 0 || ret >= (int) sizeof(pin_txt))
return -1;
os_free(hapd->conf->ap_pin);
hapd->conf->ap_pin = os_strdup(pin_txt);
if (hapd->conf->ap_pin == NULL)
return -1;
wpas_wps_ap_pin_enable(wpa_s, timeout);
return 0;
}
void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
{
struct hostapd_data *hapd;
if (wpa_s->ap_iface == NULL)
return;
hapd = wpa_s->ap_iface->bss[0];
/*
* Registrar failed to prove its knowledge of the AP PIN. Disable AP
* PIN if this happens multiple times to slow down brute force attacks.
*/
hapd->ap_pin_failures++;
wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
hapd->ap_pin_failures);
if (hapd->ap_pin_failures < 3)
return;
wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
hapd->ap_pin_failures = 0;
os_free(hapd->conf->ap_pin);
hapd->conf->ap_pin = NULL;
}
#ifdef CONFIG_WPS_NFC
struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
int ndef)
{
struct hostapd_data *hapd;
if (wpa_s->ap_iface == NULL)
return NULL;
hapd = wpa_s->ap_iface->bss[0];
return hostapd_wps_nfc_config_token(hapd, ndef);
}
struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
int ndef)
{
struct hostapd_data *hapd;
if (wpa_s->ap_iface == NULL)
return NULL;
hapd = wpa_s->ap_iface->bss[0];
return hostapd_wps_nfc_hs_cr(hapd, ndef);
}
int wpas_ap_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
const struct wpabuf *req,
const struct wpabuf *sel)
{
struct hostapd_data *hapd;
if (wpa_s->ap_iface == NULL)
return -1;
hapd = wpa_s->ap_iface->bss[0];
return hostapd_wps_nfc_report_handover(hapd, req, sel);
}
#endif /* CONFIG_WPS_NFC */
#endif /* CONFIG_WPS */
#ifdef CONFIG_CTRL_IFACE
int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
char *buf, size_t buflen)
{
if (wpa_s->ap_iface == NULL)
return -1;
return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
buf, buflen);
}
int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
char *buf, size_t buflen)