/*
* WPA Supplicant - Basic AP mode support routines
* Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
* 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 "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 */
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];
int pairwise;
conf->driver = wpa_s->driver;
os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
if (ssid->frequency == 0) {
/* default channel 11 */
conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
conf->channel = 11;
} else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
conf->channel = (ssid->frequency - 2407) / 5;
} else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
(ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
conf->channel = (ssid->frequency - 5000) / 5;
} else {
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;
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;
}
}
if (mode && mode->ht_capab) {
conf->ieee80211n = 1;
/*
* 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);
}
}
#endif /* CONFIG_IEEE80211N */
#ifdef CONFIG_P2P
if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
/* 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;
#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[ssid->ssid_len] = '\0';
bss->ssid.ssid_len = ssid->ssid_len;
bss->ssid.ssid_set = 1;
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->passphrase) {
bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
} else 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->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;
}
/* Select group cipher based on the enabled pairwise cipher suites */
pairwise = 0;
if (bss->wpa & 1)
pairwise |= bss->wpa_pairwise;
if (bss->wpa & 2) {
if (bss->rsn_pairwise == 0)
bss->rsn_pairwise = bss->wpa_pairwise;
pairwise |= bss->rsn_pairwise;
}
if (pairwise & WPA_CIPHER_TKIP)
bss->wpa_group = WPA_CIPHER_TKIP;
else
bss->wpa_group = WPA_CIPHER_CCMP;
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;
}
#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;
#ifdef CONFIG_WPS2
if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
(!(pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
goto no_wps; /* WPS2 does not allow WPA/TKIP-only
* configuration */
#endif /* CONFIG_WPS2 */
bss->eap_server = 1;
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);
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;
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;
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);
}
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)
{
#ifdef CONFIG_P2P
struct wpa_supplicant *wpa_s = ctx;
return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len);
#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_INFRA:
params.mode = IEEE80211_MODE_INFRA;
break;
case WPAS_MODE_IBSS:
params.mode = IEEE80211_MODE_IBSS;
break;
case WPAS_MODE_AP:
case WPAS_MODE_P2P_GO:
case WPAS_MODE_P2P_GROUP_FORMATION:
params.mode = IEEE80211_MODE_AP;
break;
}
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 = key_mgmt2driver(wpa_s->key_mgmt);
if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
else {
wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
"cipher.");
return -1;
}
params.pairwise_suite = cipher_suite2driver(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
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;
wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
if (conf == NULL) {
wpa_supplicant_ap_deinit(wpa_s);
return -1;
}
if (params.uapsd > 0) {
conf->bss->wmm_enabled = 1;
conf->bss->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_zalloc(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]->p2p = wpa_s->global->p2p;
hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(
wpa_s, ssid->p2p_persistent_group,
ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION);
#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;
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;
wpa_s->assoc_freq = 0;
wpa_s->reassociated_connection = 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 */
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;
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);
}
static int wpa_supplicant_ap_wps_sta_cancel(struct hostapd_data *hapd,
struct sta_info *sta, void *ctx)
{
if (sta && (sta->flags & WLAN_STA_WPS)) {
ap_sta_deauthenticate(hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
__func__, MAC2STR(sta->addr));
return 1;
}
return 0;
}
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],
wpa_supplicant_ap_wps_sta_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 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,
0);
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;
}
#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)
{
if (wpa_s->ap_iface == NULL)
return -1;
return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
buf, buflen);
}
int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
char *buf, size_t buflen)
{
if (wpa_s->ap_iface == NULL)
return -1;
return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
buf, buflen);
}
int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
size_t buflen, int verbose)
{
char *pos = buf, *end = buf + buflen;
int ret;
struct hostapd_bss_config *conf;
if (wpa_s->ap_iface == NULL)
return -1;
conf = wpa_s->ap_iface->bss[0]->conf;
if (conf->wpa == 0)
return 0;
ret = os_snprintf(pos, end - pos,
"pairwise_cipher=%s\n"
"group_cipher=%s\n"
"key_mgmt=%s\n",
wpa_cipher_txt(conf->rsn_pairwise),
wpa_cipher_txt(conf->wpa_group),
wpa_key_mgmt_txt(conf->wpa_key_mgmt,
conf->wpa));
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
return pos - buf;
}
#endif /* CONFIG_CTRL_IFACE */
int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
{
struct hostapd_iface *iface = wpa_s->ap_iface;
struct wpa_ssid *ssid = wpa_s->current_ssid;
struct hostapd_data *hapd;
if (ssid == NULL || wpa_s->ap_iface == NULL ||
ssid->mode == WPAS_MODE_INFRA ||
ssid->mode == WPAS_MODE_IBSS)
return -1;
#ifdef CONFIG_P2P
if (ssid->mode == WPAS_MODE_P2P_GO)
iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
P2P_GROUP_FORMATION;
#endif /* CONFIG_P2P */
hapd = iface->bss[0];
if (hapd->drv_priv == NULL)
return -1;
ieee802_11_set_beacons(iface);
hostapd_set_ap_wps_ie(hapd);
return 0;
}
int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
const u8 *addr)
{
struct hostapd_data *hapd;
struct hostapd_bss_config *conf;
if (!wpa_s->ap_iface)
return -1;
if (addr)
wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
MAC2STR(addr));
else
wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
hapd = wpa_s->ap_iface->bss[0];
conf = hapd->conf;
os_free(conf->accept_mac);
conf->accept_mac = NULL;
conf->num_accept_mac = 0;
os_free(conf->deny_mac);
conf->deny_mac = NULL;
conf->num_deny_mac = 0;
if (addr == NULL) {
conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
return 0;
}
conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
if (conf->accept_mac == NULL)
return -1;
os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
conf->num_accept_mac = 1;
return 0;
}