blob: 722294da2b2e123fec8448e582b62a8eea1eb5fe [file] [log] [blame]
/*
* WPA Supplicant
* Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*
* This file implements functions for registering and unregistering
* %wpa_supplicant interfaces. In addition, this file contains number of
* functions for managing network connections.
*/
#include "includes.h"
#include "common.h"
#include "crypto/random.h"
#include "crypto/sha1.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "eap_peer/eap.h"
#include "eap_peer/eap_proxy.h"
#include "eap_server/eap_methods.h"
#include "rsn_supp/wpa.h"
#include "eloop.h"
#include "config.h"
#include "utils/ext_password.h"
#include "l2_packet/l2_packet.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "ctrl_iface.h"
#include "pcsc_funcs.h"
#include "common/version.h"
#include "rsn_supp/preauth.h"
#include "rsn_supp/pmksa_cache.h"
#include "common/wpa_ctrl.h"
#include "common/ieee802_11_defs.h"
#include "common/hw_features_common.h"
#include "p2p/p2p.h"
#include "blacklist.h"
#include "wpas_glue.h"
#include "wps_supplicant.h"
#include "ibss_rsn.h"
#include "sme.h"
#include "gas_query.h"
#include "ap.h"
#include "p2p_supplicant.h"
#include "wifi_display.h"
#include "notify.h"
#include "bgscan.h"
#include "autoscan.h"
#include "bss.h"
#include "scan.h"
#include "offchannel.h"
#include "hs20_supplicant.h"
#include "wnm_sta.h"
#include "wpas_kay.h"
#include "mesh.h"
const char *const wpa_supplicant_version =
"wpa_supplicant v" VERSION_STR "\n"
"Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi> and contributors";
const char *const wpa_supplicant_license =
"This software may be distributed under the terms of the BSD license.\n"
"See README for more details.\n"
#ifdef EAP_TLS_OPENSSL
"\nThis product includes software developed by the OpenSSL Project\n"
"for use in the OpenSSL Toolkit (http://www.openssl.org/)\n"
#endif /* EAP_TLS_OPENSSL */
;
#ifndef CONFIG_NO_STDOUT_DEBUG
/* Long text divided into parts in order to fit in C89 strings size limits. */
const char *const wpa_supplicant_full_license1 =
"";
const char *const wpa_supplicant_full_license2 =
"This software may be distributed under the terms of the BSD license.\n"
"\n"
"Redistribution and use in source and binary forms, with or without\n"
"modification, are permitted provided that the following conditions are\n"
"met:\n"
"\n";
const char *const wpa_supplicant_full_license3 =
"1. Redistributions of source code must retain the above copyright\n"
" notice, this list of conditions and the following disclaimer.\n"
"\n"
"2. Redistributions in binary form must reproduce the above copyright\n"
" notice, this list of conditions and the following disclaimer in the\n"
" documentation and/or other materials provided with the distribution.\n"
"\n";
const char *const wpa_supplicant_full_license4 =
"3. Neither the name(s) of the above-listed copyright holder(s) nor the\n"
" names of its contributors may be used to endorse or promote products\n"
" derived from this software without specific prior written permission.\n"
"\n"
"THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n"
"\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n"
"LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n"
"A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n";
const char *const wpa_supplicant_full_license5 =
"OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n"
"SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n"
"LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"
"DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"
"THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"
"(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"
"OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
"\n";
#endif /* CONFIG_NO_STDOUT_DEBUG */
/* Configure default/group WEP keys for static WEP */
int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
{
int i, set = 0;
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (ssid->wep_key_len[i] == 0)
continue;
set = 1;
wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL,
i, i == ssid->wep_tx_keyidx, NULL, 0,
ssid->wep_key[i], ssid->wep_key_len[i]);
}
return set;
}
int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
u8 key[32];
size_t keylen;
enum wpa_alg alg;
u8 seq[6] = { 0 };
int ret;
/* IBSS/WPA-None uses only one key (Group) for both receiving and
* sending unicast and multicast packets. */
if (ssid->mode != WPAS_MODE_IBSS) {
wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not "
"IBSS/ad-hoc) for WPA-None", ssid->mode);
return -1;
}
if (!ssid->psk_set) {
wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for "
"WPA-None");
return -1;
}
switch (wpa_s->group_cipher) {
case WPA_CIPHER_CCMP:
os_memcpy(key, ssid->psk, 16);
keylen = 16;
alg = WPA_ALG_CCMP;
break;
case WPA_CIPHER_GCMP:
os_memcpy(key, ssid->psk, 16);
keylen = 16;
alg = WPA_ALG_GCMP;
break;
case WPA_CIPHER_TKIP:
/* WPA-None uses the same Michael MIC key for both TX and RX */
os_memcpy(key, ssid->psk, 16 + 8);
os_memcpy(key + 16 + 8, ssid->psk + 16, 8);
keylen = 32;
alg = WPA_ALG_TKIP;
break;
default:
wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for "
"WPA-None", wpa_s->group_cipher);
return -1;
}
/* TODO: should actually remember the previously used seq#, both for TX
* and RX from each STA.. */
ret = wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen);
os_memset(key, 0, sizeof(key));
return ret;
}
static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
const u8 *bssid = wpa_s->bssid;
if (is_zero_ether_addr(bssid))
bssid = wpa_s->pending_bssid;
wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.",
MAC2STR(bssid));
wpa_blacklist_add(wpa_s, bssid);
wpa_sm_notify_disassoc(wpa_s->wpa);
wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
wpa_s->reassociate = 1;
/*
* If we timed out, the AP or the local radio may be busy.
* So, wait a second until scanning again.
*/
wpa_supplicant_req_scan(wpa_s, 1, 0);
}
/**
* wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication
* @wpa_s: Pointer to wpa_supplicant data
* @sec: Number of seconds after which to time out authentication
* @usec: Number of microseconds after which to time out authentication
*
* This function is used to schedule a timeout for the current authentication
* attempt.
*/
void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
int sec, int usec)
{
if (wpa_s->conf->ap_scan == 0 &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED))
return;
wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec "
"%d usec", sec, usec);
eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL);
}
/**
* wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout
* @wpa_s: Pointer to wpa_supplicant data
*
* This function is used to cancel authentication timeout scheduled with
* wpa_supplicant_req_auth_timeout() and it is called when authentication has
* been completed.
*/
void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s)
{
wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout");
eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
wpa_blacklist_del(wpa_s, wpa_s->bssid);
}
/**
* wpa_supplicant_initiate_eapol - Configure EAPOL state machine
* @wpa_s: Pointer to wpa_supplicant data
*
* This function is used to configure EAPOL state machine based on the selected
* authentication mode.
*/
void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s)
{
#ifdef IEEE8021X_EAPOL
struct eapol_config eapol_conf;
struct wpa_ssid *ssid = wpa_s->current_ssid;
#ifdef CONFIG_IBSS_RSN
if (ssid->mode == WPAS_MODE_IBSS &&
wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
/*
* RSN IBSS authentication is per-STA and we can disable the
* per-BSSID EAPOL authentication.
*/
eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
return;
}
#endif /* CONFIG_IBSS_RSN */
eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
else
eapol_sm_notify_portControl(wpa_s->eapol, Auto);
os_memset(&eapol_conf, 0, sizeof(eapol_conf));
if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
eapol_conf.accept_802_1x_keys = 1;
eapol_conf.required_keys = 0;
if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) {
eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST;
}
if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) {
eapol_conf.required_keys |=
EAPOL_REQUIRE_KEY_BROADCAST;
}
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)
eapol_conf.required_keys = 0;
}
eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
eapol_conf.workaround = ssid->eap_workaround;
eapol_conf.eap_disabled =
!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) &&
wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
wpa_s->key_mgmt != WPA_KEY_MGMT_WPS;
eapol_conf.external_sim = wpa_s->conf->external_sim;
#ifdef CONFIG_WPS
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
eapol_conf.wps |= EAPOL_LOCAL_WPS_IN_USE;
if (wpa_s->current_bss) {
struct wpabuf *ie;
ie = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
WPS_IE_VENDOR_TYPE);
if (ie) {
if (wps_is_20(ie))
eapol_conf.wps |=
EAPOL_PEER_IS_WPS20_AP;
wpabuf_free(ie);
}
}
}
#endif /* CONFIG_WPS */
eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
ieee802_1x_alloc_kay_sm(wpa_s, ssid);
#endif /* IEEE8021X_EAPOL */
}
/**
* wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode
* @wpa_s: Pointer to wpa_supplicant data
* @ssid: Configuration data for the network
*
* This function is used to configure WPA state machine and related parameters
* to a mode where WPA is not enabled. This is called as part of the
* authentication configuration when the selected network does not use WPA.
*/
void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
int i;
if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
wpa_s->key_mgmt = WPA_KEY_MGMT_WPS;
else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)
wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
else
wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
wpa_s->group_cipher = WPA_CIPHER_NONE;
wpa_s->mgmt_group_cipher = 0;
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (ssid->wep_key_len[i] > 5) {
wpa_s->pairwise_cipher = WPA_CIPHER_WEP104;
wpa_s->group_cipher = WPA_CIPHER_WEP104;
break;
} else if (ssid->wep_key_len[i] > 0) {
wpa_s->pairwise_cipher = WPA_CIPHER_WEP40;
wpa_s->group_cipher = WPA_CIPHER_WEP40;
break;
}
}
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
wpa_s->pairwise_cipher);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
#ifdef CONFIG_IEEE80211W
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
wpa_s->mgmt_group_cipher);
#endif /* CONFIG_IEEE80211W */
pmksa_cache_clear_current(wpa_s->wpa);
}
void free_hw_features(struct wpa_supplicant *wpa_s)
{
int i;
if (wpa_s->hw.modes == NULL)
return;
for (i = 0; i < wpa_s->hw.num_modes; i++) {
os_free(wpa_s->hw.modes[i].channels);
os_free(wpa_s->hw.modes[i].rates);
}
os_free(wpa_s->hw.modes);
wpa_s->hw.modes = NULL;
}
static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s)
{
int i;
bgscan_deinit(wpa_s);
autoscan_deinit(wpa_s);
scard_deinit(wpa_s->scard);
wpa_s->scard = NULL;
wpa_sm_set_scard_ctx(wpa_s->wpa, NULL);
eapol_sm_register_scard_ctx(wpa_s->eapol, NULL);
l2_packet_deinit(wpa_s->l2);
wpa_s->l2 = NULL;
if (wpa_s->l2_br) {
l2_packet_deinit(wpa_s->l2_br);
wpa_s->l2_br = NULL;
}
#ifdef CONFIG_TESTING_OPTIONS
l2_packet_deinit(wpa_s->l2_test);
wpa_s->l2_test = NULL;
#endif /* CONFIG_TESTING_OPTIONS */
if (wpa_s->conf != NULL) {
struct wpa_ssid *ssid;
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
wpas_notify_network_removed(wpa_s, ssid);
}
os_free(wpa_s->confname);
wpa_s->confname = NULL;
os_free(wpa_s->confanother);
wpa_s->confanother = NULL;
wpa_sm_set_eapol(wpa_s->wpa, NULL);
eapol_sm_deinit(wpa_s->eapol);
wpa_s->eapol = NULL;
rsn_preauth_deinit(wpa_s->wpa);
#ifdef CONFIG_TDLS
wpa_tdls_deinit(wpa_s->wpa);
#endif /* CONFIG_TDLS */
wmm_ac_clear_saved_tspecs(wpa_s);
pmksa_candidate_free(wpa_s->wpa);
wpa_sm_deinit(wpa_s->wpa);
wpa_s->wpa = NULL;
wpa_blacklist_clear(wpa_s);
wpa_bss_deinit(wpa_s);
wpa_supplicant_cancel_delayed_sched_scan(wpa_s);
wpa_supplicant_cancel_scan(wpa_s);
wpa_supplicant_cancel_auth_timeout(wpa_s);
eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL);
#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report,
wpa_s, NULL);
#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
wpas_wps_deinit(wpa_s);
wpabuf_free(wpa_s->pending_eapol_rx);
wpa_s->pending_eapol_rx = NULL;
#ifdef CONFIG_IBSS_RSN
ibss_rsn_deinit(wpa_s->ibss_rsn);
wpa_s->ibss_rsn = NULL;
#endif /* CONFIG_IBSS_RSN */
sme_deinit(wpa_s);
#ifdef CONFIG_AP
wpa_supplicant_ap_deinit(wpa_s);
#endif /* CONFIG_AP */
wpas_p2p_deinit(wpa_s);
#ifdef CONFIG_OFFCHANNEL
offchannel_deinit(wpa_s);
#endif /* CONFIG_OFFCHANNEL */
wpa_supplicant_cancel_sched_scan(wpa_s);
os_free(wpa_s->next_scan_freqs);
wpa_s->next_scan_freqs = NULL;
os_free(wpa_s->manual_scan_freqs);
wpa_s->manual_scan_freqs = NULL;
os_free(wpa_s->manual_sched_scan_freqs);
wpa_s->manual_sched_scan_freqs = NULL;
wpas_mac_addr_rand_scan_clear(wpa_s, MAC_ADDR_RAND_ALL);
/*
* Need to remove any pending gas-query radio work before the
* gas_query_deinit() call because gas_query::work has not yet been set
* for works that have not been started. gas_query_free() will be unable
* to cancel such pending radio works and once the pending gas-query
* radio work eventually gets removed, the deinit notification call to
* gas_query_start_cb() would result in dereferencing freed memory.
*/
if (wpa_s->radio)
radio_remove_works(wpa_s, "gas-query", 0);
gas_query_deinit(wpa_s->gas);
wpa_s->gas = NULL;
free_hw_features(wpa_s);
ieee802_1x_dealloc_kay_sm(wpa_s);
os_free(wpa_s->bssid_filter);
wpa_s->bssid_filter = NULL;
os_free(wpa_s->disallow_aps_bssid);
wpa_s->disallow_aps_bssid = NULL;
os_free(wpa_s->disallow_aps_ssid);
wpa_s->disallow_aps_ssid = NULL;
wnm_bss_keep_alive_deinit(wpa_s);
#ifdef CONFIG_WNM
wnm_deallocate_memory(wpa_s);
#endif /* CONFIG_WNM */
ext_password_deinit(wpa_s->ext_pw);
wpa_s->ext_pw = NULL;
wpabuf_free(wpa_s->last_gas_resp);
wpa_s->last_gas_resp = NULL;
wpabuf_free(wpa_s->prev_gas_resp);
wpa_s->prev_gas_resp = NULL;
os_free(wpa_s->last_scan_res);
wpa_s->last_scan_res = NULL;
#ifdef CONFIG_HS20
hs20_deinit(wpa_s);
#endif /* CONFIG_HS20 */
for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) {
wpabuf_free(wpa_s->vendor_elem[i]);
wpa_s->vendor_elem[i] = NULL;
}
wmm_ac_notify_disassoc(wpa_s);
}
/**
* wpa_clear_keys - Clear keys configured for the driver
* @wpa_s: Pointer to wpa_supplicant data
* @addr: Previously used BSSID or %NULL if not available
*
* This function clears the encryption keys that has been previously configured
* for the driver.
*/
void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr)
{
int i, max;
#ifdef CONFIG_IEEE80211W
max = 6;
#else /* CONFIG_IEEE80211W */
max = 4;
#endif /* CONFIG_IEEE80211W */
/* MLME-DELETEKEYS.request */
for (i = 0; i < max; i++) {
if (wpa_s->keys_cleared & BIT(i))
continue;
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, i, 0, NULL, 0,
NULL, 0);
}
if (!(wpa_s->keys_cleared & BIT(0)) && addr &&
!is_zero_ether_addr(addr)) {
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL,
0);
/* MLME-SETPROTECTION.request(None) */
wpa_drv_mlme_setprotection(
wpa_s, addr,
MLME_SETPROTECTION_PROTECT_TYPE_NONE,
MLME_SETPROTECTION_KEY_TYPE_PAIRWISE);
}
wpa_s->keys_cleared = (u32) -1;
}
/**
* wpa_supplicant_state_txt - Get the connection state name as a text string
* @state: State (wpa_state; WPA_*)
* Returns: The state name as a printable text string
*/
const char * wpa_supplicant_state_txt(enum wpa_states state)
{
switch (state) {
case WPA_DISCONNECTED:
return "DISCONNECTED";
case WPA_INACTIVE:
return "INACTIVE";
case WPA_INTERFACE_DISABLED:
return "INTERFACE_DISABLED";
case WPA_SCANNING:
return "SCANNING";
case WPA_AUTHENTICATING:
return "AUTHENTICATING";
case WPA_ASSOCIATING:
return "ASSOCIATING";
case WPA_ASSOCIATED:
return "ASSOCIATED";
case WPA_4WAY_HANDSHAKE:
return "4WAY_HANDSHAKE";
case WPA_GROUP_HANDSHAKE:
return "GROUP_HANDSHAKE";
case WPA_COMPLETED:
return "COMPLETED";
default:
return "UNKNOWN";
}
}
#ifdef CONFIG_BGSCAN
static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s)
{
const char *name;
if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan)
name = wpa_s->current_ssid->bgscan;
else
name = wpa_s->conf->bgscan;
if (name == NULL || name[0] == '\0')
return;
if (wpas_driver_bss_selection(wpa_s))
return;
if (wpa_s->current_ssid == wpa_s->bgscan_ssid)
return;
#ifdef CONFIG_P2P
if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
return;
#endif /* CONFIG_P2P */
bgscan_deinit(wpa_s);
if (wpa_s->current_ssid) {
if (bgscan_init(wpa_s, wpa_s->current_ssid, name)) {
wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize "
"bgscan");
/*
* Live without bgscan; it is only used as a roaming
* optimization, so the initial connection is not
* affected.
*/
} else {
struct wpa_scan_results *scan_res;
wpa_s->bgscan_ssid = wpa_s->current_ssid;
scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL,
0);
if (scan_res) {
bgscan_notify_scan(wpa_s, scan_res);
wpa_scan_results_free(scan_res);
}
}
} else
wpa_s->bgscan_ssid = NULL;
}
static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s)
{
if (wpa_s->bgscan_ssid != NULL) {
bgscan_deinit(wpa_s);
wpa_s->bgscan_ssid = NULL;
}
}
#endif /* CONFIG_BGSCAN */
static void wpa_supplicant_start_autoscan(struct wpa_supplicant *wpa_s)
{
if (autoscan_init(wpa_s, 0))
wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize autoscan");
}
static void wpa_supplicant_stop_autoscan(struct wpa_supplicant *wpa_s)
{
autoscan_deinit(wpa_s);
}
void wpa_supplicant_reinit_autoscan(struct wpa_supplicant *wpa_s)
{
if (wpa_s->wpa_state == WPA_DISCONNECTED ||
wpa_s->wpa_state == WPA_SCANNING) {
autoscan_deinit(wpa_s);
wpa_supplicant_start_autoscan(wpa_s);
}
}
/**
* wpa_supplicant_set_state - Set current connection state
* @wpa_s: Pointer to wpa_supplicant data
* @state: The new connection state
*
* This function is called whenever the connection state changes, e.g.,
* association is completed for WPA/WPA2 4-Way Handshake is started.
*/
void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
enum wpa_states state)
{
enum wpa_states old_state = wpa_s->wpa_state;
wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s",
wpa_supplicant_state_txt(wpa_s->wpa_state),
wpa_supplicant_state_txt(state));
if (state == WPA_INTERFACE_DISABLED) {
/* Assure normal scan when interface is restored */
wpa_s->normal_scans = 0;
}
if (state == WPA_COMPLETED) {
wpas_connect_work_done(wpa_s);
/* Reinitialize normal_scan counter */
wpa_s->normal_scans = 0;
}
#ifdef CONFIG_P2P
/*
* P2PS client has to reply to Probe Request frames received on the
* group operating channel. Enable Probe Request frame reporting for
* P2P connected client in case p2p_cli_probe configuration property is
* set to 1.
*/
if (wpa_s->conf->p2p_cli_probe && wpa_s->current_ssid &&
wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
wpa_s->current_ssid->p2p_group) {
if (state == WPA_COMPLETED && !wpa_s->p2p_cli_probe) {
wpa_dbg(wpa_s, MSG_DEBUG,
"P2P: Enable CLI Probe Request RX reporting");
wpa_s->p2p_cli_probe =
wpa_drv_probe_req_report(wpa_s, 1) >= 0;
} else if (state != WPA_COMPLETED && wpa_s->p2p_cli_probe) {
wpa_dbg(wpa_s, MSG_DEBUG,
"P2P: Disable CLI Probe Request RX reporting");
wpa_s->p2p_cli_probe = 0;
wpa_drv_probe_req_report(wpa_s, 0);
}
}
#endif /* CONFIG_P2P */
if (state != WPA_SCANNING)
wpa_supplicant_notify_scanning(wpa_s, 0);
if (state == WPA_COMPLETED && wpa_s->new_connection) {
struct wpa_ssid *ssid = wpa_s->current_ssid;
#if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to "
MACSTR " completed [id=%d id_str=%s]",
MAC2STR(wpa_s->bssid),
ssid ? ssid->id : -1,
ssid && ssid->id_str ? ssid->id_str : "");
#endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
wpas_clear_temp_disabled(wpa_s, ssid, 1);
wpa_blacklist_clear(wpa_s);
wpa_s->extra_blacklist_count = 0;
wpa_s->new_connection = 0;
wpa_drv_set_operstate(wpa_s, 1);
#ifndef IEEE8021X_EAPOL
wpa_drv_set_supp_port(wpa_s, 1);
#endif /* IEEE8021X_EAPOL */
wpa_s->after_wps = 0;
wpa_s->known_wps_freq = 0;
wpas_p2p_completed(wpa_s);
sme_sched_obss_scan(wpa_s, 1);
} else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING ||
state == WPA_ASSOCIATED) {
wpa_s->new_connection = 1;
wpa_drv_set_operstate(wpa_s, 0);
#ifndef IEEE8021X_EAPOL
wpa_drv_set_supp_port(wpa_s, 0);
#endif /* IEEE8021X_EAPOL */
sme_sched_obss_scan(wpa_s, 0);
}
wpa_s->wpa_state = state;
#ifdef CONFIG_BGSCAN
if (state == WPA_COMPLETED)
wpa_supplicant_start_bgscan(wpa_s);
else if (state < WPA_ASSOCIATED)
wpa_supplicant_stop_bgscan(wpa_s);
#endif /* CONFIG_BGSCAN */
if (state == WPA_AUTHENTICATING)
wpa_supplicant_stop_autoscan(wpa_s);
if (state == WPA_DISCONNECTED || state == WPA_INACTIVE)
wpa_supplicant_start_autoscan(wpa_s);
if (old_state >= WPA_ASSOCIATED && wpa_s->wpa_state < WPA_ASSOCIATED)
wmm_ac_notify_disassoc(wpa_s);
if (wpa_s->wpa_state != old_state) {
wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
/*
* Notify the P2P Device interface about a state change in one
* of the interfaces.
*/
wpas_p2p_indicate_state_change(wpa_s);
if (wpa_s->wpa_state == WPA_COMPLETED ||
old_state == WPA_COMPLETED)
wpas_notify_auth_changed(wpa_s);
}
}
void wpa_supplicant_terminate_proc(struct wpa_global *global)
{
int pending = 0;
#ifdef CONFIG_WPS
struct wpa_supplicant *wpa_s = global->ifaces;
while (wpa_s) {
struct wpa_supplicant *next = wpa_s->next;
if (wpas_wps_terminate_pending(wpa_s) == 1)
pending = 1;
#ifdef CONFIG_P2P
if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE ||
(wpa_s->current_ssid && wpa_s->current_ssid->p2p_group))
wpas_p2p_disconnect(wpa_s);
#endif /* CONFIG_P2P */
wpa_s = next;
}
#endif /* CONFIG_WPS */
if (pending)
return;
eloop_terminate();
}
static void wpa_supplicant_terminate(int sig, void *signal_ctx)
{
struct wpa_global *global = signal_ctx;
wpa_supplicant_terminate_proc(global);
}
void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s)
{
enum wpa_states old_state = wpa_s->wpa_state;
wpa_s->pairwise_cipher = 0;
wpa_s->group_cipher = 0;
wpa_s->mgmt_group_cipher = 0;
wpa_s->key_mgmt = 0;
if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED)
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
if (wpa_s->wpa_state != old_state)
wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
}
/**
* wpa_supplicant_reload_configuration - Reload configuration data
* @wpa_s: Pointer to wpa_supplicant data
* Returns: 0 on success or -1 if configuration parsing failed
*
* This function can be used to request that the configuration data is reloaded
* (e.g., after configuration file change). This function is reloading
* configuration only for one interface, so this may need to be called multiple
* times if %wpa_supplicant is controlling multiple interfaces and all
* interfaces need reconfiguration.
*/
int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s)
{
struct wpa_config *conf;
int reconf_ctrl;
int old_ap_scan;
if (wpa_s->confname == NULL)
return -1;
conf = wpa_config_read(wpa_s->confname, NULL);
if (conf == NULL) {
wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration "
"file '%s' - exiting", wpa_s->confname);
return -1;
}
wpa_config_read(wpa_s->confanother, conf);
conf->changed_parameters = (unsigned int) -1;
reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface
|| (conf->ctrl_interface && wpa_s->conf->ctrl_interface &&
os_strcmp(conf->ctrl_interface,
wpa_s->conf->ctrl_interface) != 0);
if (reconf_ctrl && wpa_s->ctrl_iface) {
wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
wpa_s->ctrl_iface = NULL;
}
eapol_sm_invalidate_cached_session(wpa_s->eapol);
if (wpa_s->current_ssid) {
if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
wpa_s->own_disconnect_req = 1;
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
}
/*
* TODO: should notify EAPOL SM about changes in opensc_engine_path,
* pkcs11_engine_path, pkcs11_module_path, openssl_ciphers.
*/
if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
/*
* Clear forced success to clear EAP state for next
* authentication.
*/
eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
}
eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
wpa_sm_set_config(wpa_s->wpa, NULL);
wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
rsn_preauth_deinit(wpa_s->wpa);
old_ap_scan = wpa_s->conf->ap_scan;
wpa_config_free(wpa_s->conf);
wpa_s->conf = conf;
if (old_ap_scan != wpa_s->conf->ap_scan)
wpas_notify_ap_scan_changed(wpa_s);
if (reconf_ctrl)
wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
wpa_supplicant_update_config(wpa_s);
wpa_supplicant_clear_status(wpa_s);
if (wpa_supplicant_enabled_networks(wpa_s)) {
wpa_s->reassociate = 1;
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed");
return 0;
}
static void wpa_supplicant_reconfig(int sig, void *signal_ctx)
{
struct wpa_global *global = signal_ctx;
struct wpa_supplicant *wpa_s;
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring",
sig);
if (wpa_supplicant_reload_configuration(wpa_s) < 0) {
wpa_supplicant_terminate_proc(global);
}
}
}
static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid,
struct wpa_ie_data *ie)
{
int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie);
if (ret) {
if (ret == -2) {
wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE "
"from association info");
}
return -1;
}
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set "
"cipher suites");
if (!(ie->group_cipher & ssid->group_cipher)) {
wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group "
"cipher 0x%x (mask 0x%x) - reject",
ie->group_cipher, ssid->group_cipher);
return -1;
}
if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) {
wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise "
"cipher 0x%x (mask 0x%x) - reject",
ie->pairwise_cipher, ssid->pairwise_cipher);
return -1;
}
if (!(ie->key_mgmt & ssid->key_mgmt)) {
wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key "
"management 0x%x (mask 0x%x) - reject",
ie->key_mgmt, ssid->key_mgmt);
return -1;
}
#ifdef CONFIG_IEEE80211W
if (!(ie->capabilities & WPA_CAPABILITY_MFPC) &&
wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) {
wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP "
"that does not support management frame protection - "
"reject");
return -1;
}
#endif /* CONFIG_IEEE80211W */
return 0;
}
/**
* wpa_supplicant_set_suites - Set authentication and encryption parameters
* @wpa_s: Pointer to wpa_supplicant data
* @bss: Scan results for the selected BSS, or %NULL if not available
* @ssid: Configuration data for the selected network
* @wpa_ie: Buffer for the WPA/RSN IE
* @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the
* used buffer length in case the functions returns success.
* Returns: 0 on success or -1 on failure
*
* This function is used to configure authentication and encryption parameters
* based on the network configuration and scan result for the selected BSS (if
* available).
*/
int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, struct wpa_ssid *ssid,
u8 *wpa_ie, size_t *wpa_ie_len)
{
struct wpa_ie_data ie;
int sel, proto;
const u8 *bss_wpa, *bss_rsn, *bss_osen;
if (bss) {
bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
bss_osen = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
} else
bss_wpa = bss_rsn = bss_osen = NULL;
if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) &&
wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 &&
(ie.group_cipher & ssid->group_cipher) &&
(ie.pairwise_cipher & ssid->pairwise_cipher) &&
(ie.key_mgmt & ssid->key_mgmt)) {
wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0");
proto = WPA_PROTO_RSN;
} else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) &&
wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie) == 0 &&
(ie.group_cipher & ssid->group_cipher) &&
(ie.pairwise_cipher & ssid->pairwise_cipher) &&
(ie.key_mgmt & ssid->key_mgmt)) {
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0");
proto = WPA_PROTO_WPA;
#ifdef CONFIG_HS20
} else if (bss_osen && (ssid->proto & WPA_PROTO_OSEN)) {
wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using OSEN");
/* TODO: parse OSEN element */
os_memset(&ie, 0, sizeof(ie));
ie.group_cipher = WPA_CIPHER_CCMP;
ie.pairwise_cipher = WPA_CIPHER_CCMP;
ie.key_mgmt = WPA_KEY_MGMT_OSEN;
proto = WPA_PROTO_OSEN;
#endif /* CONFIG_HS20 */
} else if (bss) {
wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN");
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: ssid proto=0x%x pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
ssid->proto, ssid->pairwise_cipher, ssid->group_cipher,
ssid->key_mgmt);
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: BSS " MACSTR " ssid='%s'%s%s%s",
MAC2STR(bss->bssid),
wpa_ssid_txt(bss->ssid, bss->ssid_len),
bss_wpa ? " WPA" : "",
bss_rsn ? " RSN" : "",
bss_osen ? " OSEN" : "");
if (bss_rsn) {
wpa_hexdump(MSG_DEBUG, "RSN", bss_rsn, 2 + bss_rsn[1]);
if (wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie)) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Could not parse RSN element");
} else {
wpa_dbg(wpa_s, MSG_DEBUG,
"RSN: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
ie.pairwise_cipher, ie.group_cipher,
ie.key_mgmt);
}
}
if (bss_wpa) {
wpa_hexdump(MSG_DEBUG, "WPA", bss_wpa, 2 + bss_wpa[1]);
if (wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie)) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Could not parse WPA element");
} else {
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
ie.pairwise_cipher, ie.group_cipher,
ie.key_mgmt);
}
}
return -1;
} else {
if (ssid->proto & WPA_PROTO_OSEN)
proto = WPA_PROTO_OSEN;
else if (ssid->proto & WPA_PROTO_RSN)
proto = WPA_PROTO_RSN;
else
proto = WPA_PROTO_WPA;
if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) {
os_memset(&ie, 0, sizeof(ie));
ie.group_cipher = ssid->group_cipher;
ie.pairwise_cipher = ssid->pairwise_cipher;
ie.key_mgmt = ssid->key_mgmt;
#ifdef CONFIG_IEEE80211W
ie.mgmt_group_cipher =
ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ?
WPA_CIPHER_AES_128_CMAC : 0;
#endif /* CONFIG_IEEE80211W */
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites "
"based on configuration");
} else
proto = ie.proto;
}
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d "
"pairwise %d key_mgmt %d proto %d",
ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto);
#ifdef CONFIG_IEEE80211W
if (ssid->ieee80211w) {
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d",
ie.mgmt_group_cipher);
}
#endif /* CONFIG_IEEE80211W */
wpa_s->wpa_proto = proto;
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
!!(ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)));
if (bss || !wpa_s->ap_ies_from_associnfo) {
if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
bss_wpa ? 2 + bss_wpa[1] : 0) ||
wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
bss_rsn ? 2 + bss_rsn[1] : 0))
return -1;
}
sel = ie.group_cipher & ssid->group_cipher;
wpa_s->group_cipher = wpa_pick_group_cipher(sel);
if (wpa_s->group_cipher < 0) {
wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group "
"cipher");
return -1;
}
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s",
wpa_cipher_txt(wpa_s->group_cipher));
sel = ie.pairwise_cipher & ssid->pairwise_cipher;
wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(sel, 1);
if (wpa_s->pairwise_cipher < 0) {
wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise "
"cipher");
return -1;
}
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s",
wpa_cipher_txt(wpa_s->pairwise_cipher));
sel = ie.key_mgmt & ssid->key_mgmt;
#ifdef CONFIG_SAE
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE))
sel &= ~(WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE);
#endif /* CONFIG_SAE */
if (0) {
#ifdef CONFIG_SUITEB192
} else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: using KEY_MGMT 802.1X with Suite B (192-bit)");
#endif /* CONFIG_SUITEB192 */
#ifdef CONFIG_SUITEB
} else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B;
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: using KEY_MGMT 802.1X with Suite B");
#endif /* CONFIG_SUITEB */
#ifdef CONFIG_IEEE80211R
} else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) {
wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X");
} else if (sel & WPA_KEY_MGMT_FT_PSK) {
wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK");
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_SAE
} else if (sel & WPA_KEY_MGMT_SAE) {
wpa_s->key_mgmt = WPA_KEY_MGMT_SAE;
wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT SAE");
} else if (sel & WPA_KEY_MGMT_FT_SAE) {
wpa_s->key_mgmt = WPA_KEY_MGMT_FT_SAE;
wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT FT/SAE");
#endif /* CONFIG_SAE */
#ifdef CONFIG_IEEE80211W
} else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) {
wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256;
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: using KEY_MGMT 802.1X with SHA256");
} else if (sel & WPA_KEY_MGMT_PSK_SHA256) {
wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256;
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: using KEY_MGMT PSK with SHA256");
#endif /* CONFIG_IEEE80211W */
} else if (sel & WPA_KEY_MGMT_IEEE8021X) {
wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X");
} else if (sel & WPA_KEY_MGMT_PSK) {
wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK");
} else if (sel & WPA_KEY_MGMT_WPA_NONE) {
wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE");
#ifdef CONFIG_HS20
} else if (sel & WPA_KEY_MGMT_OSEN) {
wpa_s->key_mgmt = WPA_KEY_MGMT_OSEN;
wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using KEY_MGMT OSEN");
#endif /* CONFIG_HS20 */
} else {
wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select "
"authenticated key management type");
return -1;
}
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
wpa_s->pairwise_cipher);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
#ifdef CONFIG_IEEE80211W
sel = ie.mgmt_group_cipher;
if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION ||
!(ie.capabilities & WPA_CAPABILITY_MFPC))
sel = 0;
if (sel & WPA_CIPHER_AES_128_CMAC) {
wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
"AES-128-CMAC");
} else if (sel & WPA_CIPHER_BIP_GMAC_128) {
wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_128;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
"BIP-GMAC-128");
} else if (sel & WPA_CIPHER_BIP_GMAC_256) {
wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_256;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
"BIP-GMAC-256");
} else if (sel & WPA_CIPHER_BIP_CMAC_256) {
wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_CMAC_256;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
"BIP-CMAC-256");
} else {
wpa_s->mgmt_group_cipher = 0;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
}
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
wpa_s->mgmt_group_cipher);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP,
wpas_get_ssid_pmf(wpa_s, ssid));
#endif /* CONFIG_IEEE80211W */
if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) {
wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE");
return -1;
}
if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) {
int psk_set = 0;
if (ssid->psk_set) {
wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN, NULL);
psk_set = 1;
}
#ifndef CONFIG_NO_PBKDF2
if (bss && ssid->bssid_set && ssid->ssid_len == 0 &&
ssid->passphrase) {
u8 psk[PMK_LEN];
pbkdf2_sha1(ssid->passphrase, bss->ssid, bss->ssid_len,
4096, psk, PMK_LEN);
wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
psk, PMK_LEN);
wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL);
psk_set = 1;
os_memset(psk, 0, sizeof(psk));
}
#endif /* CONFIG_NO_PBKDF2 */
#ifdef CONFIG_EXT_PASSWORD
if (ssid->ext_psk) {
struct wpabuf *pw = ext_password_get(wpa_s->ext_pw,
ssid->ext_psk);
char pw_str[64 + 1];
u8 psk[PMK_LEN];
if (pw == NULL) {
wpa_msg(wpa_s, MSG_INFO, "EXT PW: No PSK "
"found from external storage");
return -1;
}
if (wpabuf_len(pw) < 8 || wpabuf_len(pw) > 64) {
wpa_msg(wpa_s, MSG_INFO, "EXT PW: Unexpected "
"PSK length %d in external storage",
(int) wpabuf_len(pw));
ext_password_free(pw);
return -1;
}
os_memcpy(pw_str, wpabuf_head(pw), wpabuf_len(pw));
pw_str[wpabuf_len(pw)] = '\0';
#ifndef CONFIG_NO_PBKDF2
if (wpabuf_len(pw) >= 8 && wpabuf_len(pw) < 64 && bss)
{
pbkdf2_sha1(pw_str, bss->ssid, bss->ssid_len,
4096, psk, PMK_LEN);
os_memset(pw_str, 0, sizeof(pw_str));
wpa_hexdump_key(MSG_MSGDUMP, "PSK (from "
"external passphrase)",
psk, PMK_LEN);
wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL);
psk_set = 1;
os_memset(psk, 0, sizeof(psk));
} else
#endif /* CONFIG_NO_PBKDF2 */
if (wpabuf_len(pw) == 2 * PMK_LEN) {
if (hexstr2bin(pw_str, psk, PMK_LEN) < 0) {
wpa_msg(wpa_s, MSG_INFO, "EXT PW: "
"Invalid PSK hex string");
os_memset(pw_str, 0, sizeof(pw_str));
ext_password_free(pw);
return -1;
}
wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL);
psk_set = 1;
os_memset(psk, 0, sizeof(psk));
} else {
wpa_msg(wpa_s, MSG_INFO, "EXT PW: No suitable "
"PSK available");
os_memset(pw_str, 0, sizeof(pw_str));
ext_password_free(pw);
return -1;
}
os_memset(pw_str, 0, sizeof(pw_str));
ext_password_free(pw);
}
#endif /* CONFIG_EXT_PASSWORD */
if (!psk_set) {
wpa_msg(wpa_s, MSG_INFO,
"No PSK available for association");
return -1;
}
} else
wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
return 0;
}
static void wpas_ext_capab_byte(struct wpa_supplicant *wpa_s, u8 *pos, int idx)
{
*pos = 0x00;
switch (idx) {
case 0: /* Bits 0-7 */
break;
case 1: /* Bits 8-15 */
break;
case 2: /* Bits 16-23 */
#ifdef CONFIG_WNM
*pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */
*pos |= 0x08; /* Bit 19 - BSS Transition */
#endif /* CONFIG_WNM */
break;
case 3: /* Bits 24-31 */
#ifdef CONFIG_WNM
*pos |= 0x02; /* Bit 25 - SSID List */
#endif /* CONFIG_WNM */
#ifdef CONFIG_INTERWORKING
if (wpa_s->conf->interworking)
*pos |= 0x80; /* Bit 31 - Interworking */
#endif /* CONFIG_INTERWORKING */
break;
case 4: /* Bits 32-39 */
#ifdef CONFIG_INTERWORKING
if (wpa_s->drv_flags / WPA_DRIVER_FLAGS_QOS_MAPPING)
*pos |= 0x01; /* Bit 32 - QoS Map */
#endif /* CONFIG_INTERWORKING */
break;
case 5: /* Bits 40-47 */
#ifdef CONFIG_HS20
if (wpa_s->conf->hs20)
*pos |= 0x40; /* Bit 46 - WNM-Notification */
#endif /* CONFIG_HS20 */
break;
case 6: /* Bits 48-55 */
break;
}
}
int wpas_build_ext_capab(struct wpa_supplicant *wpa_s, u8 *buf, size_t buflen)
{
u8 *pos = buf;
u8 len = 6, i;
if (len < wpa_s->extended_capa_len)
len = wpa_s->extended_capa_len;
if (buflen < (size_t) len + 2) {
wpa_printf(MSG_INFO,
"Not enough room for building extended capabilities element");
return -1;
}
*pos++ = WLAN_EID_EXT_CAPAB;
*pos++ = len;
for (i = 0; i < len; i++, pos++) {
wpas_ext_capab_byte(wpa_s, pos, i);
if (i < wpa_s->extended_capa_len) {
*pos &= ~wpa_s->extended_capa_mask[i];
*pos |= wpa_s->extended_capa[i];
}
}
while (len > 0 && buf[1 + len] == 0) {
len--;
buf[1] = len;
}
if (len == 0)
return 0;
return 2 + len;
}
static int wpas_valid_bss(struct wpa_supplicant *wpa_s,
struct wpa_bss *test_bss)
{
struct wpa_bss *bss;
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
if (bss == test_bss)
return 1;
}
return 0;
}
static int wpas_valid_ssid(struct wpa_supplicant *wpa_s,
struct wpa_ssid *test_ssid)
{
struct wpa_ssid *ssid;
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
if (ssid == test_ssid)
return 1;
}
return 0;
}
int wpas_valid_bss_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *test_bss,
struct wpa_ssid *test_ssid)
{
if (test_bss && !wpas_valid_bss(wpa_s, test_bss))
return 0;
return test_ssid == NULL || wpas_valid_ssid(wpa_s, test_ssid);
}
void wpas_connect_work_free(struct wpa_connect_work *cwork)
{
if (cwork == NULL)
return;
os_free(cwork);
}
void wpas_connect_work_done(struct wpa_supplicant *wpa_s)
{
struct wpa_connect_work *cwork;
struct wpa_radio_work *work = wpa_s->connect_work;
if (!work)
return;
wpa_s->connect_work = NULL;
cwork = work->ctx;
work->ctx = NULL;
wpas_connect_work_free(cwork);
radio_work_done(work);
}
int wpas_update_random_addr(struct wpa_supplicant *wpa_s, int style)
{
struct os_reltime now;
u8 addr[ETH_ALEN];
os_get_reltime(&now);
if (wpa_s->last_mac_addr_style == style &&
wpa_s->last_mac_addr_change.sec != 0 &&
!os_reltime_expired(&now, &wpa_s->last_mac_addr_change,
wpa_s->conf->rand_addr_lifetime)) {
wpa_msg(wpa_s, MSG_DEBUG,
"Previously selected random MAC address has not yet expired");
return 0;
}
switch (style) {
case 1:
if (random_mac_addr(addr) < 0)
return -1;
break;
case 2:
os_memcpy(addr, wpa_s->perm_addr, ETH_ALEN);
if (random_mac_addr_keep_oui(addr) < 0)
return -1;
break;
default:
return -1;
}
if (wpa_drv_set_mac_addr(wpa_s, addr) < 0) {
wpa_msg(wpa_s, MSG_INFO,
"Failed to set random MAC address");
return -1;
}
os_get_reltime(&wpa_s->last_mac_addr_change);
wpa_s->mac_addr_changed = 1;
wpa_s->last_mac_addr_style = style;
if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
wpa_msg(wpa_s, MSG_INFO,
"Could not update MAC address information");
return -1;
}
wpa_msg(wpa_s, MSG_DEBUG, "Using random MAC address " MACSTR,
MAC2STR(addr));
return 0;
}
int wpas_update_random_addr_disassoc(struct wpa_supplicant *wpa_s)
{
if (wpa_s->wpa_state >= WPA_AUTHENTICATING ||
!wpa_s->conf->preassoc_mac_addr)
return 0;
return wpas_update_random_addr(wpa_s, wpa_s->conf->preassoc_mac_addr);
}
static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit);
/**
* wpa_supplicant_associate - Request association
* @wpa_s: Pointer to wpa_supplicant data
* @bss: Scan results for the selected BSS, or %NULL if not available
* @ssid: Configuration data for the selected network
*
* This function is used to request %wpa_supplicant to associate with a BSS.
*/
void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, struct wpa_ssid *ssid)
{
struct wpa_connect_work *cwork;
int rand_style;
if (ssid->mac_addr == -1)
rand_style = wpa_s->conf->mac_addr;
else
rand_style = ssid->mac_addr;
wmm_ac_clear_saved_tspecs(wpa_s);
wpa_s->reassoc_same_bss = 0;
if (wpa_s->last_ssid == ssid) {
wpa_dbg(wpa_s, MSG_DEBUG, "Re-association to the same ESS");
if (wpa_s->current_bss && wpa_s->current_bss == bss) {
wmm_ac_save_tspecs(wpa_s);
wpa_s->reassoc_same_bss = 1;
}
} else if (rand_style > 0) {
if (wpas_update_random_addr(wpa_s, rand_style) < 0)
return;
wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
} else if (wpa_s->mac_addr_changed) {
if (wpa_drv_set_mac_addr(wpa_s, NULL) < 0) {
wpa_msg(wpa_s, MSG_INFO,
"Could not restore permanent MAC address");
return;
}
wpa_s->mac_addr_changed = 0;
if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
wpa_msg(wpa_s, MSG_INFO,
"Could not update MAC address information");
return;
}
wpa_msg(wpa_s, MSG_DEBUG, "Using permanent MAC address");
}
wpa_s->last_ssid = ssid;
#ifdef CONFIG_IBSS_RSN
ibss_rsn_deinit(wpa_s->ibss_rsn);
wpa_s->ibss_rsn = NULL;
#endif /* CONFIG_IBSS_RSN */
if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO ||
ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
#ifdef CONFIG_AP
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) {
wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP "
"mode");
return;
}
if (wpa_supplicant_create_ap(wpa_s, ssid) < 0) {
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
wpas_p2p_ap_setup_failed(wpa_s);
return;
}
wpa_s->current_bss = bss;
#else /* CONFIG_AP */
wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in "
"the build");
#endif /* CONFIG_AP */
return;
}
if (ssid->mode == WPAS_MODE_MESH) {
#ifdef CONFIG_MESH
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MESH)) {
wpa_msg(wpa_s, MSG_INFO,
"Driver does not support mesh mode");
return;
}
if (bss)
ssid->frequency = bss->freq;
if (wpa_supplicant_join_mesh(wpa_s, ssid) < 0) {
wpa_msg(wpa_s, MSG_ERROR, "Could not join mesh");
return;
}
wpa_s->current_bss = bss;
wpa_msg_ctrl(wpa_s, MSG_INFO, MESH_GROUP_STARTED
"ssid=\"%s\" id=%d",
wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
ssid->id);
#else /* CONFIG_MESH */
wpa_msg(wpa_s, MSG_ERROR,
"mesh mode support not included in the build");
#endif /* CONFIG_MESH */
return;
}
#ifdef CONFIG_TDLS
if (bss)
wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1),
bss->ie_len);
#endif /* CONFIG_TDLS */
if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
ssid->mode == IEEE80211_MODE_INFRA) {
sme_authenticate(wpa_s, bss, ssid);
return;
}
if (wpa_s->connect_work) {
wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since connect_work exist");
return;
}
if (radio_work_pending(wpa_s, "connect")) {
wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since pending work exist");
return;
}
cwork = os_zalloc(sizeof(*cwork));
if (cwork == NULL)
return;
cwork->bss = bss;
cwork->ssid = ssid;
if (radio_add_work(wpa_s, bss ? bss->freq : 0, "connect", 1,
wpas_start_assoc_cb, cwork) < 0) {
os_free(cwork);
}
}
static int bss_is_ibss(struct wpa_bss *bss)
{
return (bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
IEEE80211_CAP_IBSS;
}
void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
const struct wpa_ssid *ssid,
struct hostapd_freq_params *freq)
{
enum hostapd_hw_mode hw_mode;
struct hostapd_hw_modes *mode = NULL;
int ht40plus[] = { 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157,
184, 192 };
int vht80[] = { 36, 52, 100, 116, 132, 149 };
struct hostapd_channel_data *pri_chan = NULL, *sec_chan = NULL;
u8 channel;
int i, chan_idx, ht40 = -1, res, obss_scan = 1;
unsigned int j;
struct hostapd_freq_params vht_freq;
freq->freq = ssid->frequency;
for (j = 0; j < wpa_s->last_scan_res_used; j++) {
struct wpa_bss *bss = wpa_s->last_scan_res[j];
if (ssid->mode != WPAS_MODE_IBSS)
break;
/* Don't adjust control freq in case of fixed_freq */
if (ssid->fixed_freq)
break;
if (!bss_is_ibss(bss))
continue;
if (ssid->ssid_len == bss->ssid_len &&
os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) == 0) {
wpa_printf(MSG_DEBUG,
"IBSS already found in scan results, adjust control freq: %d",
bss->freq);
freq->freq = bss->freq;
obss_scan = 0;
break;
}
}
/* For IBSS check HT_IBSS flag */
if (ssid->mode == WPAS_MODE_IBSS &&
!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_HT_IBSS))
return;
if (wpa_s->group_cipher == WPA_CIPHER_WEP40 ||
wpa_s->group_cipher == WPA_CIPHER_WEP104 ||
wpa_s->pairwise_cipher == WPA_CIPHER_TKIP) {
wpa_printf(MSG_DEBUG,
"IBSS: WEP/TKIP detected, do not try to enable HT");
return;
}
hw_mode = ieee80211_freq_to_chan(freq->freq, &channel);
for (i = 0; wpa_s->hw.modes && i < wpa_s->hw.num_modes; i++) {
if (wpa_s->hw.modes[i].mode == hw_mode) {
mode = &wpa_s->hw.modes[i];
break;
}
}
if (!mode)
return;
freq->ht_enabled = ht_supported(mode);
if (!freq->ht_enabled)
return;
/* Setup higher BW only for 5 GHz */
if (mode->mode != HOSTAPD_MODE_IEEE80211A)
return;
for (chan_idx = 0; chan_idx < mode->num_channels; chan_idx++) {
pri_chan = &mode->channels[chan_idx];
if (pri_chan->chan == channel)
break;
pri_chan = NULL;
}
if (!pri_chan)
return;
/* Check primary channel flags */
if (pri_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
return;
/* Check/setup HT40+/HT40- */
for (j = 0; j < ARRAY_SIZE(ht40plus); j++) {
if (ht40plus[j] == channel) {
ht40 = 1;
break;
}
}
/* Find secondary channel */
for (i = 0; i < mode->num_channels; i++) {
sec_chan = &mode->channels[i];
if (sec_chan->chan == channel + ht40 * 4)
break;
sec_chan = NULL;
}
if (!sec_chan)
return;
/* Check secondary channel flags */
if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
return;
freq->channel = pri_chan->chan;
switch (ht40) {
case -1:
if (!(pri_chan->flag & HOSTAPD_CHAN_HT40MINUS))
return;
freq->sec_channel_offset = -1;
break;
case 1:
if (!(pri_chan->flag & HOSTAPD_CHAN_HT40PLUS))
return;
freq->sec_channel_offset = 1;
break;
default:
break;
}
if (freq->sec_channel_offset && obss_scan) {
struct wpa_scan_results *scan_res;
scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, 0);
if (scan_res == NULL) {
/* Back to HT20 */
freq->sec_channel_offset = 0;
return;
}
res = check_40mhz_5g(mode, scan_res, pri_chan->chan,
sec_chan->chan);
switch (res) {
case 0:
/* Back to HT20 */
freq->sec_channel_offset = 0;
break;
case 1:
/* Configuration allowed */
break;
case 2:
/* Switch pri/sec channels */
freq->freq = hw_get_freq(mode, sec_chan->chan);
freq->sec_channel_offset = -freq->sec_channel_offset;
freq->channel = sec_chan->chan;
break;
default:
freq->sec_channel_offset = 0;
break;
}
wpa_scan_results_free(scan_res);
}
wpa_printf(MSG_DEBUG,
"IBSS/mesh: setup freq channel %d, sec_channel_offset %d",
freq->channel, freq->sec_channel_offset);
/* Not sure if mesh is ready for VHT */
if (ssid->mode != WPAS_MODE_IBSS)
return;
/* For IBSS check VHT_IBSS flag */
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_VHT_IBSS))
return;
vht_freq = *freq;
vht_freq.vht_enabled = vht_supported(mode);
if (!vht_freq.vht_enabled)
return;
/* setup center_freq1, bandwidth */
for (j = 0; j < ARRAY_SIZE(vht80); j++) {
if (freq->channel >= vht80[j] &&
freq->channel < vht80[j] + 16)
break;
}
if (j == ARRAY_SIZE(vht80))
return;
for (i = vht80[j]; i < vht80[j] + 16; i += 4) {
struct hostapd_channel_data *chan;
chan = hw_get_channel_chan(mode, i, NULL);
if (!chan)
return;
/* Back to HT configuration if channel not usable */
if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
return;
}
if (hostapd_set_freq_params(&vht_freq, mode->mode, freq->freq,
freq->channel, freq->ht_enabled,
vht_freq.vht_enabled,
freq->sec_channel_offset,
VHT_CHANWIDTH_80MHZ,
vht80[j] + 6, 0, 0) != 0)
return;
*freq = vht_freq;
wpa_printf(MSG_DEBUG, "IBSS: VHT setup freq cf1 %d, cf2 %d, bw %d",
freq->center_freq1, freq->center_freq2, freq->bandwidth);
}
static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
{
struct wpa_connect_work *cwork = work->ctx;
struct wpa_bss *bss = cwork->bss;
struct wpa_ssid *ssid = cwork->ssid;
struct wpa_supplicant *wpa_s = work->wpa_s;
u8 wpa_ie[200];
size_t wpa_ie_len;
int use_crypt, ret, i, bssid_changed;
int algs = WPA_AUTH_ALG_OPEN;
unsigned int cipher_pairwise, cipher_group;
struct wpa_driver_associate_params params;
int wep_keys_set = 0;
int assoc_failed = 0;
struct wpa_ssid *old_ssid;
#ifdef CONFIG_HT_OVERRIDES
struct ieee80211_ht_capabilities htcaps;
struct ieee80211_ht_capabilities htcaps_mask;
#endif /* CONFIG_HT_OVERRIDES */
#ifdef CONFIG_VHT_OVERRIDES
struct ieee80211_vht_capabilities vhtcaps;
struct ieee80211_vht_capabilities vhtcaps_mask;
#endif /* CONFIG_VHT_OVERRIDES */
if (deinit) {
if (work->started) {
wpa_s->connect_work = NULL;
/* cancel possible auth. timeout */
eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s,
NULL);
}
wpas_connect_work_free(cwork);
return;
}
wpa_s->connect_work = work;
if (cwork->bss_removed || !wpas_valid_bss_ssid(wpa_s, bss, ssid)) {
wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt");
wpas_connect_work_done(wpa_s);
return;
}
os_memset(&params, 0, sizeof(params));
wpa_s->reassociate = 0;
wpa_s->eap_expected_failure = 0;
if (bss &&
(!wpas_driver_bss_selection(wpa_s) || wpas_wps_searching(wpa_s))) {
#ifdef CONFIG_IEEE80211R
const u8 *ie, *md = NULL;
#endif /* CONFIG_IEEE80211R */
wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
" (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq);
bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
os_memset(wpa_s->bssid, 0, ETH_ALEN);
os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
if (bssid_changed)
wpas_notify_bssid_changed(wpa_s);
#ifdef CONFIG_IEEE80211R
ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
md = ie + 2;
wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
if (md) {
/* Prepare for the next transition */
wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_WPS
} else if ((ssid->ssid == NULL || ssid->ssid_len == 0) &&
wpa_s->conf->ap_scan == 2 &&
(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
/* Use ap_scan==1 style network selection to find the network
*/
wpas_connect_work_done(wpa_s);
wpa_s->scan_req = MANUAL_SCAN_REQ;
wpa_s->reassociate = 1;
wpa_supplicant_req_scan(wpa_s, 0, 0);
return;
#endif /* CONFIG_WPS */
} else {
wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
}
wpa_supplicant_cancel_sched_scan(wpa_s);
wpa_supplicant_cancel_scan(wpa_s);
/* Starting new association, so clear the possibly used WPA IE from the
* previous association. */
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
#ifdef IEEE8021X_EAPOL
if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
if (ssid->leap) {
if (ssid->non_leap == 0)
algs = WPA_AUTH_ALG_LEAP;
else
algs |= WPA_AUTH_ALG_LEAP;
}
}
#endif /* IEEE8021X_EAPOL */
wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs);
if (ssid->auth_alg) {
algs = ssid->auth_alg;
wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
"0x%x", algs);
}
if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
wpa_key_mgmt_wpa(ssid->key_mgmt)) {
int try_opportunistic;
try_opportunistic = (ssid->proactive_key_caching < 0 ?
wpa_s->conf->okc :
ssid->proactive_key_caching) &&
(ssid->proto & WPA_PROTO_RSN);
if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
ssid, try_opportunistic) == 0)
eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
wpa_ie_len = sizeof(wpa_ie);
if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
wpa_ie, &wpa_ie_len)) {
wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
"key management and encryption suites");
wpas_connect_work_done(wpa_s);
return;
}
} else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss &&
wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
/*
* Both WPA and non-WPA IEEE 802.1X enabled in configuration -
* use non-WPA since the scan results did not indicate that the
* AP is using WPA or WPA2.
*/
wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
wpa_ie_len = 0;
wpa_s->wpa_proto = 0;
} else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
wpa_ie_len = sizeof(wpa_ie);
if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
wpa_ie, &wpa_ie_len)) {
wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
"key management and encryption suites (no "
"scan results)");
wpas_connect_work_done(wpa_s);
return;
}
#ifdef CONFIG_WPS
} else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
struct wpabuf *wps_ie;
wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) {
wpa_ie_len = wpabuf_len(wps_ie);
os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len);
} else
wpa_ie_len = 0;
wpabuf_free(wps_ie);
wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY))
params.wps = WPS_MODE_PRIVACY;
else
params.wps = WPS_MODE_OPEN;
wpa_s->wpa_proto = 0;
#endif /* CONFIG_WPS */
} else {
wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
wpa_ie_len = 0;
wpa_s->wpa_proto = 0;
}
#ifdef CONFIG_P2P
if (wpa_s->global->p2p) {
u8 *pos;
size_t len;
int res;
pos = wpa_ie + wpa_ie_len;
len = sizeof(wpa_ie) - wpa_ie_len;
res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
ssid->p2p_group);
if (res >= 0)
wpa_ie_len += res;
}
wpa_s->cross_connect_disallowed = 0;
if (bss) {
struct wpabuf *p2p;
p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
if (p2p) {
wpa_s->cross_connect_disallowed =
p2p_get_cross_connect_disallowed(p2p);
wpabuf_free(p2p);
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross "
"connection",
wpa_s->cross_connect_disallowed ?
"disallows" : "allows");
}
}
os_memset(wpa_s->p2p_ip_addr_info, 0, sizeof(wpa_s->p2p_ip_addr_info));
#endif /* CONFIG_P2P */
#ifdef CONFIG_HS20
if (is_hs20_network(wpa_s, ssid, bss)) {
struct wpabuf *hs20;
hs20 = wpabuf_alloc(20);
if (hs20) {
int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
size_t len;
wpas_hs20_add_indication(hs20, pps_mo_id);
len = sizeof(wpa_ie) - wpa_ie_len;
if (wpabuf_len(hs20) <= len) {
os_memcpy(wpa_ie + wpa_ie_len,
wpabuf_head(hs20), wpabuf_len(hs20));
wpa_ie_len += wpabuf_len(hs20);
}
wpabuf_free(hs20);
}
}
#endif /* CONFIG_HS20 */
/*
* Workaround: Add Extended Capabilities element only if the AP
* included this element in Beacon/Probe Response frames. Some older
* APs seem to have interoperability issues if this element is
* included, so while the standard may require us to include the
* element in all cases, it is justifiable to skip it to avoid
* interoperability issues.
*/
if (!bss || wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB)) {
u8 ext_capab[18];
int ext_capab_len;
ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
sizeof(ext_capab));
if (ext_capab_len > 0) {
u8 *pos = wpa_ie;
if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN)
pos += 2 + pos[1];
os_memmove(pos + ext_capab_len, pos,
wpa_ie_len - (pos - wpa_ie));
wpa_ie_len += ext_capab_len;
os_memcpy(pos, ext_capab, ext_capab_len);
}
}
if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) {
struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ];
size_t len;
len = sizeof(wpa_ie) - wpa_ie_len;
if (wpabuf_len(buf) <= len) {
os_memcpy(wpa_ie + wpa_ie_len,
wpabuf_head(buf), wpabuf_len(buf));
wpa_ie_len += wpabuf_len(buf);
}
}
wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL);
use_crypt = 1;
cipher_pairwise = wpa_s->pairwise_cipher;
cipher_group = wpa_s->group_cipher;
if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE)
use_crypt = 0;
if (wpa_set_wep_keys(wpa_s, ssid)) {
use_crypt = 1;
wep_keys_set = 1;
}
}
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)
use_crypt = 0;
#ifdef IEEE8021X_EAPOL
if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
if ((ssid->eapol_flags &
(EAPOL_FLAG_REQUIRE_KEY_UNICAST |
EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 &&
!wep_keys_set) {
use_crypt = 0;
} else {
/* Assume that dynamic WEP-104 keys will be used and
* set cipher suites in order for drivers to expect
* encryption. */
cipher_pairwise = cipher_group = WPA_CIPHER_WEP104;
}
}
#endif /* IEEE8021X_EAPOL */
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
/* Set the key before (and later after) association */
wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
}
wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
if (bss) {
params.ssid = bss->ssid;
params.ssid_len = bss->ssid_len;
if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
wpa_printf(MSG_DEBUG, "Limit connection to BSSID "
MACSTR " freq=%u MHz based on scan results "
"(bssid_set=%d)",
MAC2STR(bss->bssid), bss->freq,
ssid->bssid_set);
params.bssid = bss->bssid;
params.freq.freq = bss->freq;
}
params.bssid_hint = bss->bssid;
params.freq_hint = bss->freq;
} else {
params.ssid = ssid->ssid;
params.ssid_len = ssid->ssid_len;
}
if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set &&
wpa_s->conf->ap_scan == 2) {
params.bssid = ssid->bssid;
params.fixed_bssid = 1;
}
/* Initial frequency for IBSS/mesh */
if ((ssid->mode == WPAS_MODE_IBSS || ssid->mode == WPAS_MODE_MESH) &&
ssid->frequency > 0 && params.freq.freq == 0)
ibss_mesh_setup_freq(wpa_s, ssid, &params.freq);
if (ssid->mode == WPAS_MODE_IBSS) {
params.fixed_freq = ssid->fixed_freq;
if (ssid->beacon_int)
params.beacon_int = ssid->beacon_int;
else
params.beacon_int = wpa_s->conf->beacon_int;
}
params.wpa_ie = wpa_ie;
params.wpa_ie_len = wpa_ie_len;
params.pairwise_suite = cipher_pairwise;
params.group_suite = cipher_group;
params.key_mgmt_suite = wpa_s->key_mgmt;
params.wpa_proto = wpa_s->wpa_proto;
params.auth_alg = algs;
params.mode = ssid->mode;
params.bg_scan_period = ssid->bg_scan_period;
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (ssid->wep_key_len[i])
params.wep_key[i] = ssid->wep_key[i];
params.wep_key_len[i] = ssid->wep_key_len[i];
}
params.wep_tx_keyidx = ssid->wep_tx_keyidx;
if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
(params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) {
params.passphrase = ssid->passphrase;
if (ssid->psk_set)
params.psk = ssid->psk;
}
if (wpa_s->conf->key_mgmt_offload) {
if (params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B ||
params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)
params.req_key_mgmt_offload =
ssid->proactive_key_caching < 0 ?
wpa_s->conf->okc : ssid->proactive_key_caching;
else
params.req_key_mgmt_offload = 1;
if ((params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
params.key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK) &&
ssid->psk_set)
params.psk = ssid->psk;
}
params.drop_unencrypted = use_crypt;
#ifdef CONFIG_IEEE80211W
params.mgmt_frame_protection = wpas_get_ssid_pmf(wpa_s, ssid);
if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) {
const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
struct wpa_ie_data ie;
if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 &&
ie.capabilities &
(WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports "
"MFP: require MFP");
params.mgmt_frame_protection =
MGMT_FRAME_PROTECTION_REQUIRED;
}
}
#endif /* CONFIG_IEEE80211W */
params.p2p = ssid->p2p_group;
if (wpa_s->parent->set_sta_uapsd)
params.uapsd = wpa_s->parent->sta_uapsd;
else
params.uapsd = -1;
#ifdef CONFIG_HT_OVERRIDES
os_memset(&htcaps, 0, sizeof(htcaps));
os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
params.htcaps = (u8 *) &htcaps;
params.htcaps_mask = (u8 *) &htcaps_mask;
wpa_supplicant_apply_ht_overrides(wpa_s, ssid, &params);
#endif /* CONFIG_HT_OVERRIDES */
#ifdef CONFIG_VHT_OVERRIDES
os_memset(&vhtcaps, 0, sizeof(vhtcaps));
os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
params.vhtcaps = &vhtcaps;
params.vhtcaps_mask = &vhtcaps_mask;
wpa_supplicant_apply_vht_overrides(wpa_s, ssid, &params);
#endif /* CONFIG_VHT_OVERRIDES */
#ifdef CONFIG_P2P
/*
* If multi-channel concurrency is not supported, check for any
* frequency conflict. In case of any frequency conflict, remove the
* least prioritized connection.
*/
if (wpa_s->num_multichan_concurrent < 2) {
int freq, num;
num = get_shared_radio_freqs(wpa_s, &freq, 1);
if (num > 0 && freq > 0 && freq != params.freq.freq) {
wpa_printf(MSG_DEBUG,
"Assoc conflicting freq found (%d != %d)",
freq, params.freq.freq);
if (wpas_p2p_handle_frequency_conflicts(
wpa_s, params.freq.freq, ssid) < 0) {
wpas_connect_work_done(wpa_s);
return;
}
}
}
#endif /* CONFIG_P2P */
ret = wpa_drv_associate(wpa_s, &params);
if (ret < 0) {
wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
"failed");
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) {
/*
* The driver is known to mean what is saying, so we
* can stop right here; the association will not
* succeed.
*/
wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
return;
}
/* try to continue anyway; new association will be tried again
* after timeout */
assoc_failed = 1;
}
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
/* Set the key after the association just in case association
* cleared the previously configured key. */
wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
/* No need to timeout authentication since there is no key
* management. */
wpa_supplicant_cancel_auth_timeout(wpa_s);
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
#ifdef CONFIG_IBSS_RSN
} else if (ssid->mode == WPAS_MODE_IBSS &&
wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
/*
* RSN IBSS authentication is per-STA and we can disable the
* per-BSSID authentication.
*/
wpa_supplicant_cancel_auth_timeout(wpa_s);
#endif /* CONFIG_IBSS_RSN */
} else {
/* Timeout for IEEE 802.11 authentication and association */
int timeout = 60;
if (assoc_failed) {
/* give IBSS a bit more time */
timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5;
} else if (wpa_s->conf->ap_scan == 1) {
/* give IBSS a bit more time */
timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10;
}
wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
}
if (wep_keys_set &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC)) {
/* Set static WEP keys again */
wpa_set_wep_keys(wpa_s, ssid);
}
if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) {
/*
* Do not allow EAP session resumption between different
* network configurations.
*/
eapol_sm_invalidate_cached_session(wpa_s->eapol);
}
old_ssid = wpa_s->current_ssid;
wpa_s->current_ssid = ssid;
if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set)
wpa_s->current_bss = bss;
wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
wpa_supplicant_initiate_eapol(wpa_s);
if (old_ssid != wpa_s->current_ssid)
wpas_notify_network_changed(wpa_s);
}
static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s,
const u8 *addr)
{
struct wpa_ssid *old_ssid;
wpas_connect_work_done(wpa_s);
wpa_clear_keys(wpa_s, addr);
old_ssid = wpa_s->current_ssid;
wpa_supplicant_mark_disassoc(wpa_s);
wpa_sm_set_config(wpa_s->wpa, NULL);
eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
if (old_ssid != wpa_s->current_ssid)
wpas_notify_network_changed(wpa_s);
eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
}
/**
* wpa_supplicant_deauthenticate - Deauthenticate the current connection
* @wpa_s: Pointer to wpa_supplicant data
* @reason_code: IEEE 802.11 reason code for the deauthenticate frame
*
* This function is used to request %wpa_supplicant to deauthenticate from the
* current AP.
*/
void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
int reason_code)
{
u8 *addr = NULL;
union wpa_event_data event;
int zero_addr = 0;
wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR
" pending_bssid=" MACSTR " reason=%d state=%s",
MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state));
if (!is_zero_ether_addr(wpa_s->bssid))
addr = wpa_s->bssid;
else if (!is_zero_ether_addr(wpa_s->pending_bssid) &&
(wpa_s->wpa_state == WPA_AUTHENTICATING ||
wpa_s->wpa_state == WPA_ASSOCIATING))
addr = wpa_s->pending_bssid;
else if (wpa_s->wpa_state == WPA_ASSOCIATING) {
/*
* When using driver-based BSS selection, we may not know the
* BSSID with which we are currently trying to associate. We
* need to notify the driver of this disconnection even in such
* a case, so use the all zeros address here.
*/
addr = wpa_s->bssid;
zero_addr = 1;
}
#ifdef CONFIG_TDLS
wpa_tdls_teardown_peers(wpa_s->wpa);
#endif /* CONFIG_TDLS */
#ifdef CONFIG_MESH
if (wpa_s->ifmsh) {
wpa_msg_ctrl(wpa_s, MSG_INFO, MESH_GROUP_REMOVED "%s",
wpa_s->ifname);
wpa_supplicant_leave_mesh(wpa_s);
}
#endif /* CONFIG_MESH */
if (addr) {
wpa_drv_deauthenticate(wpa_s, addr, reason_code);
os_memset(&event, 0, sizeof(event));
event.deauth_info.reason_code = (u16) reason_code;
event.deauth_info.locally_generated = 1;
wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event);
if (zero_addr)
addr = NULL;
}
wpa_supplicant_clear_connection(wpa_s, addr);
}
static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
if (!ssid || !ssid->disabled || ssid->disabled == 2)
return;
ssid->disabled = 0;
wpas_clear_temp_disabled(wpa_s, ssid, 1);
wpas_notify_network_enabled_changed(wpa_s, ssid);
/*
* Try to reassociate since there is no current configuration and a new
* network was made available.
*/
if (!wpa_s->current_ssid && !wpa_s->disconnected)
wpa_s->reassociate = 1;
}
/**
* wpa_supplicant_enable_network - Mark a configured network as enabled
* @wpa_s: wpa_supplicant structure for a network interface
* @ssid: wpa_ssid structure for a configured network or %NULL
*
* Enables the specified network or all networks if no network specified.
*/
void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
if (ssid == NULL) {
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
wpa_supplicant_enable_one_network(wpa_s, ssid);
} else
wpa_supplicant_enable_one_network(wpa_s, ssid);
if (wpa_s->reassociate && !wpa_s->disconnected) {
if (wpa_s->sched_scanning) {
wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add "
"new network to scan filters");
wpa_supplicant_cancel_sched_scan(wpa_s);
}
if (wpa_supplicant_fast_associate(wpa_s) != 1)
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
}
/**
* wpa_supplicant_disable_network - Mark a configured network as disabled
* @wpa_s: wpa_supplicant structure for a network interface
* @ssid: wpa_ssid structure for a configured network or %NULL
*
* Disables the specified network or all networks if no network specified.
*/
void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
struct wpa_ssid *other_ssid;
int was_disabled;
if (ssid == NULL) {
if (wpa_s->sched_scanning)
wpa_supplicant_cancel_sched_scan(wpa_s);
for (other_ssid = wpa_s->conf->ssid; other_ssid;
other_ssid = other_ssid->next) {
was_disabled = other_ssid->disabled;
if (was_disabled == 2)
continue; /* do not change persistent P2P group
* data */
other_ssid->disabled = 1;
if (was_disabled != other_ssid->disabled)
wpas_notify_network_enabled_changed(
wpa_s, other_ssid);
}
if (wpa_s->current_ssid)
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
} else if (ssid->disabled != 2) {
if (ssid == wpa_s->current_ssid)
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
was_disabled = ssid->disabled;
ssid->disabled = 1;
if (was_disabled != ssid->disabled) {
wpas_notify_network_enabled_changed(wpa_s, ssid);
if (wpa_s->sched_scanning) {
wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan "
"to remove network from filters");
wpa_supplicant_cancel_sched_scan(wpa_s);
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
}
}
}
/**
* wpa_supplicant_select_network - Attempt association with a network
* @wpa_s: wpa_supplicant structure for a network interface
* @ssid: wpa_ssid structure for a configured network or %NULL for any network
*/
void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
struct wpa_ssid *other_ssid;
int disconnected = 0;
if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) {
if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
wpa_s->own_disconnect_req = 1;
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
disconnected = 1;
}
if (ssid)
wpas_clear_temp_disabled(wpa_s, ssid, 1);
/*
* Mark all other networks disabled or mark all networks enabled if no
* network specified.
*/
for (other_ssid = wpa_s->conf->ssid; other_ssid;
other_ssid = other_ssid->next) {
int was_disabled = other_ssid->disabled;
if (was_disabled == 2)
continue; /* do not change persistent P2P group data */
other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0;
if (was_disabled && !other_ssid->disabled)
wpas_clear_temp_disabled(wpa_s, other_ssid, 0);
if (was_disabled != other_ssid->disabled)
wpas_notify_network_enabled_changed(wpa_s, other_ssid);
}
if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid) {
/* We are already associated with the selected network */
wpa_printf(MSG_DEBUG, "Already associated with the "
"selected network - do nothing");
return;
}
if (ssid) {
wpa_s->current_ssid = ssid;
eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
wpa_s->connect_without_scan =
(ssid->mode == WPAS_MODE_MESH) ? ssid : NULL;
/*
* Don't optimize next scan freqs since a new ESS has been
* selected.
*/
os_free(wpa_s->next_scan_freqs);
wpa_s->next_scan_freqs = NULL;
} else {
wpa_s->connect_without_scan = NULL;
}
wpa_s->disconnected = 0;
wpa_s->reassociate = 1;
if (wpa_s->connect_without_scan ||
wpa_supplicant_fast_associate(wpa_s) != 1)
wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 :