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hostapd/wpa_supplicant/events.c
Matthew Wang d42cfaa397 Move wpas_trigger_6ghz_scan() up in the file 
This avoids an unnecessary forward declaration for the static function.

Signed-off-by: Matthew Wang <matthewmwang@chromium.org>
2024-08-03 12:27:39 +03:00

7084 lines
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/*
* WPA Supplicant - Driver event processing
* Copyright (c) 2003-2019, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "includes.h"
#include "common.h"
#include "utils/crc32.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "rsn_supp/wpa.h"
#include "eloop.h"
#include "config.h"
#include "l2_packet/l2_packet.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "pcsc_funcs.h"
#include "rsn_supp/preauth.h"
#include "rsn_supp/pmksa_cache.h"
#include "common/wpa_ctrl.h"
#include "eap_peer/eap.h"
#include "ap/hostapd.h"
#include "ap/sta_info.h"
#include "p2p/p2p.h"
#include "fst/fst.h"
#include "wnm_sta.h"
#include "notify.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "common/gas_server.h"
#include "common/dpp.h"
#include "common/ptksa_cache.h"
#include "crypto/random.h"
#include "bssid_ignore.h"
#include "wpas_glue.h"
#include "wps_supplicant.h"
#include "ibss_rsn.h"
#include "sme.h"
#include "gas_query.h"
#include "p2p_supplicant.h"
#include "bgscan.h"
#include "autoscan.h"
#include "ap.h"
#include "bss.h"
#include "scan.h"
#include "offchannel.h"
#include "interworking.h"
#include "mesh.h"
#include "mesh_mpm.h"
#include "wmm_ac.h"
#include "nan_usd.h"
#include "dpp_supplicant.h"
#define MAX_OWE_TRANSITION_BSS_SELECT_COUNT 5
#ifndef CONFIG_NO_SCAN_PROCESSING
static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
int new_scan, int own_request,
bool trigger_6ghz_scan,
union wpa_event_data *data);
#endif /* CONFIG_NO_SCAN_PROCESSING */
int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
{
struct os_reltime now;
if (ssid == NULL || ssid->disabled_until.sec == 0)
return 0;
os_get_reltime(&now);
if (ssid->disabled_until.sec > now.sec)
return ssid->disabled_until.sec - now.sec;
wpas_clear_temp_disabled(wpa_s, ssid, 0);
return 0;
}
#ifndef CONFIG_NO_SCAN_PROCESSING
/**
* wpas_reenabled_network_time - Time until first network is re-enabled
* @wpa_s: Pointer to wpa_supplicant data
* Returns: If all enabled networks are temporarily disabled, returns the time
* (in sec) until the first network is re-enabled. Otherwise returns 0.
*
* This function is used in case all enabled networks are temporarily disabled,
* in which case it returns the time (in sec) that the first network will be
* re-enabled. The function assumes that at least one network is enabled.
*/
static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
{
struct wpa_ssid *ssid;
int disabled_for, res = 0;
#ifdef CONFIG_INTERWORKING
if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
wpa_s->conf->cred)
return 0;
#endif /* CONFIG_INTERWORKING */
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
if (ssid->disabled)
continue;
disabled_for = wpas_temp_disabled(wpa_s, ssid);
if (!disabled_for)
return 0;
if (!res || disabled_for < res)
res = disabled_for;
}
return res;
}
#endif /* CONFIG_NO_SCAN_PROCESSING */
void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
return;
wpa_dbg(wpa_s, MSG_DEBUG,
"Try to associate due to network getting re-enabled");
if (wpa_supplicant_fast_associate(wpa_s) != 1) {
wpa_supplicant_cancel_sched_scan(wpa_s);
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
}
static struct wpa_bss * __wpa_supplicant_get_new_bss(
struct wpa_supplicant *wpa_s, const u8 *bssid, const u8 *ssid,
size_t ssid_len)
{
if (ssid && ssid_len > 0)
return wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
else
return wpa_bss_get_bssid(wpa_s, bssid);
}
static struct wpa_bss * _wpa_supplicant_get_new_bss(
struct wpa_supplicant *wpa_s, const u8 *bssid, const u8 *ssid,
size_t ssid_len, bool try_update_scan_results)
{
struct wpa_bss *bss = __wpa_supplicant_get_new_bss(wpa_s, bssid, ssid,
ssid_len);
if (bss || !try_update_scan_results)
return bss;
wpa_supplicant_update_scan_results(wpa_s, bssid);
return __wpa_supplicant_get_new_bss(wpa_s, bssid, ssid, ssid_len);
}
static struct wpa_bss * wpa_supplicant_get_new_bss(
struct wpa_supplicant *wpa_s, const u8 *bssid)
{
struct wpa_bss *bss = NULL;
struct wpa_ssid *ssid = wpa_s->current_ssid;
u8 drv_ssid[SSID_MAX_LEN];
int res;
bool try_update_scan_results = true;
res = wpa_drv_get_ssid(wpa_s, drv_ssid);
if (res > 0) {
bss = _wpa_supplicant_get_new_bss(wpa_s, bssid, drv_ssid, res,
try_update_scan_results);
try_update_scan_results = false;
}
if (!bss && ssid && ssid->ssid_len > 0) {
bss = _wpa_supplicant_get_new_bss(wpa_s, bssid, ssid->ssid,
ssid->ssid_len,
try_update_scan_results);
try_update_scan_results = false;
}
if (!bss)
bss = _wpa_supplicant_get_new_bss(wpa_s, bssid, NULL, 0,
try_update_scan_results);
return bss;
}
static struct wpa_bss *
wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s, const u8 *bssid)
{
struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
if (bss)
wpa_s->current_bss = bss;
return bss;
}
static void wpa_supplicant_update_link_bss(struct wpa_supplicant *wpa_s,
u8 link_id, const u8 *bssid)
{
struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
if (bss)
wpa_s->links[link_id].bss = bss;
}
static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
struct wpa_ssid *ssid, *old_ssid;
struct wpa_bss *bss;
u8 drv_ssid[SSID_MAX_LEN];
size_t drv_ssid_len;
int res;
if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
wpa_supplicant_update_current_bss(wpa_s, wpa_s->bssid);
if (wpa_s->current_ssid->ssid_len == 0)
return 0; /* current profile still in use */
res = wpa_drv_get_ssid(wpa_s, drv_ssid);
if (res < 0) {
wpa_msg(wpa_s, MSG_INFO,
"Failed to read SSID from driver");
return 0; /* try to use current profile */
}
drv_ssid_len = res;
if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
drv_ssid_len) == 0)
return 0; /* current profile still in use */
#ifdef CONFIG_OWE
if ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
wpa_s->current_bss &&
(wpa_s->current_bss->flags & WPA_BSS_OWE_TRANSITION) &&
drv_ssid_len == wpa_s->current_bss->ssid_len &&
os_memcmp(drv_ssid, wpa_s->current_bss->ssid,
drv_ssid_len) == 0)
return 0; /* current profile still in use */
#endif /* CONFIG_OWE */
wpa_msg(wpa_s, MSG_DEBUG,
"Driver-initiated BSS selection changed the SSID to %s",
wpa_ssid_txt(drv_ssid, drv_ssid_len));
/* continue selecting a new network profile */
}
wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
"information");
ssid = wpa_supplicant_get_ssid(wpa_s);
if (ssid == NULL) {
wpa_msg(wpa_s, MSG_INFO,
"No network configuration found for the current AP");
return -1;
}
if (wpas_network_disabled(wpa_s, ssid)) {
wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
return -1;
}
if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
return -1;
}
res = wpas_temp_disabled(wpa_s, ssid);
if (res > 0) {
wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
"disabled for %d second(s)", res);
return -1;
}
wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
"current AP");
bss = wpa_supplicant_update_current_bss(wpa_s, wpa_s->bssid);
if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
u8 wpa_ie[80];
size_t wpa_ie_len = sizeof(wpa_ie);
bool skip_default_rsne;
/* Do not override RSNE/RSNXE with the default values if the
* driver indicated the actual values used in the
* (Re)Association Request frame. */
skip_default_rsne = data && data->assoc_info.req_ies;
if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
wpa_ie, &wpa_ie_len,
skip_default_rsne) < 0)
wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
} else {
wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
}
if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
eapol_sm_invalidate_cached_session(wpa_s->eapol);
old_ssid = wpa_s->current_ssid;
wpa_s->current_ssid = ssid;
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);
return 0;
}
void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
if (wpa_s->countermeasures) {
wpa_s->countermeasures = 0;
wpa_drv_set_countermeasures(wpa_s, 0);
wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
/*
* It is possible that the device is sched scanning, which means
* that a connection attempt will be done only when we receive
* scan results. However, in this case, it would be preferable
* to scan and connect immediately, so cancel the sched_scan and
* issue a regular scan flow.
*/
wpa_supplicant_cancel_sched_scan(wpa_s);
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
}
void wpas_reset_mlo_info(struct wpa_supplicant *wpa_s)
{
if (!wpa_s->valid_links)
return;
wpa_s->valid_links = 0;
wpa_s->mlo_assoc_link_id = 0;
os_memset(wpa_s->ap_mld_addr, 0, ETH_ALEN);
os_memset(wpa_s->links, 0, sizeof(wpa_s->links));
}
void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
{
int bssid_changed;
wnm_bss_keep_alive_deinit(wpa_s);
#ifdef CONFIG_IBSS_RSN
ibss_rsn_deinit(wpa_s->ibss_rsn);
wpa_s->ibss_rsn = NULL;
#endif /* CONFIG_IBSS_RSN */
#ifdef CONFIG_AP
wpa_supplicant_ap_deinit(wpa_s);
#endif /* CONFIG_AP */
#ifdef CONFIG_HS20
/* Clear possibly configured frame filters */
wpa_drv_configure_frame_filters(wpa_s, 0);
#endif /* CONFIG_HS20 */
if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
return;
if (os_reltime_initialized(&wpa_s->session_start)) {
os_reltime_age(&wpa_s->session_start, &wpa_s->session_length);
wpa_s->session_start.sec = 0;
wpa_s->session_start.usec = 0;
wpas_notify_session_length(wpa_s);
}
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
os_memset(wpa_s->bssid, 0, ETH_ALEN);
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
sme_clear_on_disassoc(wpa_s);
wpa_s->current_bss = NULL;
wpa_s->assoc_freq = 0;
if (bssid_changed)
wpas_notify_bssid_changed(wpa_s);
eapol_sm_notify_portEnabled(wpa_s->eapol, false);
eapol_sm_notify_portValid(wpa_s->eapol, false);
if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || wpa_s->drv_authorized_port)
eapol_sm_notify_eap_success(wpa_s->eapol, false);
wpa_s->drv_authorized_port = 0;
wpa_s->ap_ies_from_associnfo = 0;
wpa_s->current_ssid = NULL;
eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
wpa_s->key_mgmt = 0;
wpa_s->allowed_key_mgmts = 0;
#ifndef CONFIG_NO_RRM
wpas_rrm_reset(wpa_s);
#endif /* CONFIG_NO_RRM */
wpa_s->wnmsleep_used = 0;
#ifdef CONFIG_WNM
wpa_s->wnm_mode = 0;
#endif /* CONFIG_WNM */
wnm_clear_coloc_intf_reporting(wpa_s);
wpa_s->disable_mbo_oce = 0;
#ifdef CONFIG_TESTING_OPTIONS
wpa_s->last_tk_alg = WPA_ALG_NONE;
os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk));
#endif /* CONFIG_TESTING_OPTIONS */
wpa_s->ieee80211ac = 0;
if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0)
wpa_s->enabled_4addr_mode = 0;
wpa_s->wps_scan_done = false;
wpas_reset_mlo_info(wpa_s);
#ifdef CONFIG_SME
wpa_s->sme.bss_max_idle_period = 0;
#endif /* CONFIG_SME */
wpa_s->ssid_verified = false;
wpa_s->bigtk_set = false;
}
static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s, bool authorized)
{
struct wpa_ie_data ie;
int pmksa_set = -1;
size_t i;
struct rsn_pmksa_cache_entry *cur_pmksa;
/* Start with assumption of no PMKSA cache entry match for cases other
* than SAE. In particular, this is needed to generate the PMKSA cache
* entries for Suite B cases with driver-based roaming indication. */
cur_pmksa = pmksa_cache_get_current(wpa_s->wpa);
if (cur_pmksa && !wpa_key_mgmt_sae(cur_pmksa->akmp))
pmksa_cache_clear_current(wpa_s->wpa);
if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
ie.pmkid == NULL)
return;
for (i = 0; i < ie.num_pmkid; i++) {
pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
ie.pmkid + i * PMKID_LEN,
NULL, NULL, 0, NULL, 0,
true);
if (pmksa_set == 0) {
eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
if (authorized)
wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
break;
}
}
wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
"PMKSA cache", pmksa_set == 0 ? "" : "not ");
}
static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
if (data == NULL) {
wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
"event");
return;
}
wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
" index=%d preauth=%d",
MAC2STR(data->pmkid_candidate.bssid),
data->pmkid_candidate.index,
data->pmkid_candidate.preauth);
pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
data->pmkid_candidate.index,
data->pmkid_candidate.preauth);
}
static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
{
if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
return 0;
#ifdef IEEE8021X_EAPOL
if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
wpa_s->current_ssid &&
!(wpa_s->current_ssid->eapol_flags &
(EAPOL_FLAG_REQUIRE_KEY_UNICAST |
EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
/* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
* plaintext or static WEP keys). */
return 0;
}
#endif /* IEEE8021X_EAPOL */
return 1;
}
/**
* wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
* @wpa_s: pointer to wpa_supplicant data
* @ssid: Configuration data for the network
* Returns: 0 on success, -1 on failure
*
* This function is called when starting authentication with a network that is
* configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
*/
int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
#ifdef IEEE8021X_EAPOL
#ifdef PCSC_FUNCS
int aka = 0, sim = 0;
if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
wpa_s->scard != NULL || wpa_s->conf->external_sim)
return 0;
if (ssid == NULL || ssid->eap.eap_methods == NULL) {
sim = 1;
aka = 1;
} else {
struct eap_method_type *eap = ssid->eap.eap_methods;
while (eap->vendor != EAP_VENDOR_IETF ||
eap->method != EAP_TYPE_NONE) {
if (eap->vendor == EAP_VENDOR_IETF) {
if (eap->method == EAP_TYPE_SIM)
sim = 1;
else if (eap->method == EAP_TYPE_AKA ||
eap->method == EAP_TYPE_AKA_PRIME)
aka = 1;
}
eap++;
}
}
if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
sim = 0;
if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
NULL)
aka = 0;
if (!sim && !aka) {
wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
"use SIM, but neither EAP-SIM nor EAP-AKA are "
"enabled");
return 0;
}
wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
"(sim=%d aka=%d) - initialize PCSC", sim, aka);
wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
if (wpa_s->scard == NULL) {
wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
"(pcsc-lite)");
return -1;
}
wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
#endif /* PCSC_FUNCS */
#endif /* IEEE8021X_EAPOL */
return 0;
}
#ifndef CONFIG_NO_SCAN_PROCESSING
#ifdef CONFIG_WEP
static int has_wep_key(struct wpa_ssid *ssid)
{
int i;
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (ssid->wep_key_len[i])
return 1;
}
return 0;
}
#endif /* CONFIG_WEP */
static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
struct wpa_ssid *ssid)
{
int privacy = 0;
if (ssid->mixed_cell)
return 1;
#ifdef CONFIG_WPS
if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
return 1;
#endif /* CONFIG_WPS */
#ifdef CONFIG_OWE
if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only)
return 1;
#endif /* CONFIG_OWE */
#ifdef CONFIG_WEP
if (has_wep_key(ssid))
privacy = 1;
#endif /* CONFIG_WEP */
#ifdef IEEE8021X_EAPOL
if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
privacy = 1;
#endif /* IEEE8021X_EAPOL */
if (wpa_key_mgmt_wpa(ssid->key_mgmt))
privacy = 1;
if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
privacy = 1;
if (bss->caps & IEEE80211_CAP_PRIVACY)
return privacy;
return !privacy;
}
static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid,
struct wpa_bss *bss, int debug_print)
{
struct wpa_ie_data ie;
int proto_match = 0;
const u8 *rsn_ie, *wpa_ie;
int ret;
#ifdef CONFIG_WEP
int wep_ok;
#endif /* CONFIG_WEP */
bool is_6ghz_bss = is_6ghz_freq(bss->freq);
ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
if (ret >= 0)
return ret;
#ifdef CONFIG_WEP
/* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
(((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
#endif /* CONFIG_WEP */
rsn_ie = wpa_bss_get_rsne(wpa_s, bss, ssid, false);
if (is_6ghz_bss && !rsn_ie) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - 6 GHz BSS without RSNE");
return 0;
}
while ((ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) && rsn_ie) {
proto_match++;
if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip RSN IE - parse failed");
break;
}
if (!ie.has_pairwise)
ie.pairwise_cipher = wpa_default_rsn_cipher(bss->freq);
if (!ie.has_group)
ie.group_cipher = wpa_default_rsn_cipher(bss->freq);
if (is_6ghz_bss || !is_zero_ether_addr(bss->mld_addr)) {
/* WEP and TKIP are not allowed on 6 GHz/MLD */
ie.pairwise_cipher &= ~(WPA_CIPHER_WEP40 |
WPA_CIPHER_WEP104 |
WPA_CIPHER_TKIP);
ie.group_cipher &= ~(WPA_CIPHER_WEP40 |
WPA_CIPHER_WEP104 |
WPA_CIPHER_TKIP);
}
#ifdef CONFIG_WEP
if (wep_ok &&
(ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
{
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" selected based on TSN in RSN IE");
return 1;
}
#endif /* CONFIG_WEP */
if (!(ie.proto & ssid->proto) &&
!(ssid->proto & WPA_PROTO_OSEN)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip RSN IE - proto mismatch");
break;
}
if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip RSN IE - PTK cipher mismatch");
break;
}
if (!(ie.group_cipher & ssid->group_cipher)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip RSN IE - GTK cipher mismatch");
break;
}
if (ssid->group_mgmt_cipher &&
!(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip RSN IE - group mgmt cipher mismatch");
break;
}
if (is_6ghz_bss) {
/* MFPC must be supported on 6 GHz */
if (!(ie.capabilities & WPA_CAPABILITY_MFPC)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip RSNE - 6 GHz without MFPC");
break;
}
/* WPA PSK is not allowed on the 6 GHz band */
ie.key_mgmt &= ~(WPA_KEY_MGMT_PSK |
WPA_KEY_MGMT_FT_PSK |
WPA_KEY_MGMT_PSK_SHA256);
}
if (!(ie.key_mgmt & ssid->key_mgmt)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip RSN IE - key mgmt mismatch");
break;
}
if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
wpas_get_ssid_pmf(wpa_s, ssid) ==
MGMT_FRAME_PROTECTION_REQUIRED) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip RSN IE - no mgmt frame protection");
break;
}
if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
wpas_get_ssid_pmf(wpa_s, ssid) ==
NO_MGMT_FRAME_PROTECTION) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip RSN IE - no mgmt frame protection enabled but AP requires it");
break;
}
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" selected based on RSN IE");
return 1;
}
if (is_6ghz_bss) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - 6 GHz BSS without matching RSNE");
return 0;
}
wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED &&
(!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) || ssid->owe_only)) {
#ifdef CONFIG_OWE
if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && ssid->owe_only &&
!wpa_ie && !rsn_ie &&
wpa_s->owe_transition_select &&
wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
ssid->owe_transition_bss_select_count + 1 <=
MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
ssid->owe_transition_bss_select_count++;
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip OWE open BSS (selection count %d does not exceed %d)",
ssid->owe_transition_bss_select_count,
MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
wpa_s->owe_transition_search = 1;
return 0;
}
#endif /* CONFIG_OWE */
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - MFP Required but network not MFP Capable");
return 0;
}
while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
proto_match++;
if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip WPA IE - parse failed");
break;
}
#ifdef CONFIG_WEP
if (wep_ok &&
(ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
{
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" selected based on TSN in WPA IE");
return 1;
}
#endif /* CONFIG_WEP */
if (!(ie.proto & ssid->proto)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip WPA IE - proto mismatch");
break;
}
if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip WPA IE - PTK cipher mismatch");
break;
}
if (!(ie.group_cipher & ssid->group_cipher)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip WPA IE - GTK cipher mismatch");
break;
}
if (!(ie.key_mgmt & ssid->key_mgmt)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip WPA IE - key mgmt mismatch");
break;
}
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" selected based on WPA IE");
return 1;
}
if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
!rsn_ie) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" allow for non-WPA IEEE 802.1X");
return 1;
}
#ifdef CONFIG_OWE
if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only &&
!wpa_ie && !rsn_ie) {
if (wpa_s->owe_transition_select &&
wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
ssid->owe_transition_bss_select_count + 1 <=
MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
ssid->owe_transition_bss_select_count++;
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip OWE transition BSS (selection count %d does not exceed %d)",
ssid->owe_transition_bss_select_count,
MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
wpa_s->owe_transition_search = 1;
return 0;
}
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" allow in OWE transition mode");
return 1;
}
#endif /* CONFIG_OWE */
if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - no WPA/RSN proto match");
return 0;
}
if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
return 1;
}
if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
return 1;
}
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" reject due to mismatch with WPA/WPA2");
return 0;
}
static int freq_allowed(int *freqs, int freq)
{
int i;
if (freqs == NULL)
return 1;
for (i = 0; freqs[i]; i++)
if (freqs[i] == freq)
return 1;
return 0;
}
static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
struct wpa_bss *bss, int debug_print)
{
const struct hostapd_hw_modes *mode = NULL, *modes;
const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
const u8 *rate_ie;
int i, j, k;
if (bss->freq == 0)
return 1; /* Cannot do matching without knowing band */
modes = wpa_s->hw.modes;
if (modes == NULL) {
/*
* The driver does not provide any additional information
* about the utilized hardware, so allow the connection attempt
* to continue.
*/
return 1;
}
for (i = 0; i < wpa_s->hw.num_modes; i++) {
for (j = 0; j < modes[i].num_channels; j++) {
int freq = modes[i].channels[j].freq;
if (freq == bss->freq) {
if (mode &&
mode->mode == HOSTAPD_MODE_IEEE80211G)
break; /* do not allow 802.11b replace
* 802.11g */
mode = &modes[i];
break;
}
}
}
if (mode == NULL)
return 0;
for (i = 0; i < (int) sizeof(scan_ie); i++) {
rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
if (rate_ie == NULL)
continue;
for (j = 2; j < rate_ie[1] + 2; j++) {
int flagged = !!(rate_ie[j] & 0x80);
int r = (rate_ie[j] & 0x7f) * 5;
/*
* IEEE Std 802.11n-2009 7.3.2.2:
* The new BSS Membership selector value is encoded
* like a legacy basic rate, but it is not a rate and
* only indicates if the BSS members are required to
* support the mandatory features of Clause 20 [HT PHY]
* in order to join the BSS.
*/
if (flagged && ((rate_ie[j] & 0x7f) ==
BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
if (!ht_supported(mode)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" hardware does not support HT PHY");
return 0;
}
continue;
}
/* There's also a VHT selector for 802.11ac */
if (flagged && ((rate_ie[j] & 0x7f) ==
BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
if (!vht_supported(mode)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" hardware does not support VHT PHY");
return 0;
}
continue;
}
if (flagged && ((rate_ie[j] & 0x7f) ==
BSS_MEMBERSHIP_SELECTOR_HE_PHY)) {
if (!he_supported(mode, IEEE80211_MODE_INFRA)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" hardware does not support HE PHY");
return 0;
}
continue;
}
#ifdef CONFIG_SAE
if (flagged && ((rate_ie[j] & 0x7f) ==
BSS_MEMBERSHIP_SELECTOR_SAE_H2E_ONLY)) {
if (wpa_s->conf->sae_pwe ==
SAE_PWE_HUNT_AND_PECK &&
!ssid->sae_password_id &&
!is_6ghz_freq(bss->freq) &&
wpa_key_mgmt_sae(ssid->key_mgmt)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" SAE H2E disabled");
#ifdef CONFIG_TESTING_OPTIONS
if (wpa_s->ignore_sae_h2e_only) {
wpa_dbg(wpa_s, MSG_DEBUG,
"TESTING: Ignore SAE H2E requirement mismatch");
continue;
}
#endif /* CONFIG_TESTING_OPTIONS */
return 0;
}
continue;
}
#endif /* CONFIG_SAE */
if (!flagged)
continue;
/* check for legacy basic rates */
for (k = 0; k < mode->num_rates; k++) {
if (mode->rates[k] == r)
break;
}
if (k == mode->num_rates) {
/*
* IEEE Std 802.11-2007 7.3.2.2 demands that in
* order to join a BSS all required rates
* have to be supported by the hardware.
*/
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
r / 10, r % 10,
bss->freq, mode->mode, mode->num_rates);
return 0;
}
}
}
return 1;
}
/*
* Test whether BSS is in an ESS.
* This is done differently in DMG (60 GHz) and non-DMG bands
*/
static int bss_is_ess(struct wpa_bss *bss)
{
if (bss_is_dmg(bss)) {
return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
IEEE80211_CAP_DMG_AP;
}
return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
IEEE80211_CAP_ESS);
}
static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
{
size_t i;
for (i = 0; i < ETH_ALEN; i++) {
if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
return 0;
}
return 1;
}
static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
{
size_t i;
for (i = 0; i < num; i++) {
const u8 *a = list + i * ETH_ALEN * 2;
const u8 *m = a + ETH_ALEN;
if (match_mac_mask(a, addr, m))
return 1;
}
return 0;
}
static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
const u8 **ret_ssid, size_t *ret_ssid_len)
{
#ifdef CONFIG_OWE
const u8 *owe, *bssid;
owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
if (!owe || !wpa_bss_get_rsne(wpa_s, bss, NULL, false))
return;
if (wpas_get_owe_trans_network(owe, &bssid, ret_ssid, ret_ssid_len))
return;
/* Match the profile SSID against the OWE transition mode SSID on the
* open network. */
wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR
" SSID: %s", MAC2STR(bssid),
wpa_ssid_txt(*ret_ssid, *ret_ssid_len));
if (!(bss->flags & WPA_BSS_OWE_TRANSITION)) {
struct wpa_ssid *ssid;
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
if (wpas_network_disabled(wpa_s, ssid))
continue;
if (ssid->ssid_len == *ret_ssid_len &&
os_memcmp(ssid->ssid, ret_ssid, *ret_ssid_len) == 0) {
/* OWE BSS in transition mode for a currently
* enabled OWE network. */
wpa_dbg(wpa_s, MSG_DEBUG,
"OWE: transition mode OWE SSID for active OWE profile");
bss->flags |= WPA_BSS_OWE_TRANSITION;
break;
}
}
}
#endif /* CONFIG_OWE */
}
static bool wpas_valid_ml_bss(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
{
u16 removed_links;
if (wpa_bss_parse_basic_ml_element(wpa_s, bss, NULL, NULL, NULL, NULL))
return true;
if (!bss->valid_links)
return true;
/* Check if the current BSS is going to be removed */
removed_links = wpa_bss_parse_reconf_ml_element(wpa_s, bss);
if (BIT(bss->mld_link_id) & removed_links)
return false;
return true;
}
int disabled_freq(struct wpa_supplicant *wpa_s, int freq)
{
int i, j;
if (!wpa_s->hw.modes || !wpa_s->hw.num_modes)
return 0;
for (j = 0; j < wpa_s->hw.num_modes; j++) {
struct hostapd_hw_modes *mode = &wpa_s->hw.modes[j];
for (i = 0; i < mode->num_channels; i++) {
struct hostapd_channel_data *chan = &mode->channels[i];
if (chan->freq == freq)
return !!(chan->flag & HOSTAPD_CHAN_DISABLED);
}
}
return 1;
}
static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
const u8 *match_ssid, size_t match_ssid_len,
struct wpa_bss *bss, int bssid_ignore_count,
bool debug_print);
#ifdef CONFIG_SAE_PK
static bool sae_pk_acceptable_bss_with_pk(struct wpa_supplicant *wpa_s,
struct wpa_bss *orig_bss,
struct wpa_ssid *ssid,
const u8 *match_ssid,
size_t match_ssid_len)
{
struct wpa_bss *bss;
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
int count;
const u8 *ie;
if (bss == orig_bss)
continue;
ie = wpa_bss_get_rsnxe(wpa_s, bss, ssid, false);
if (!(ieee802_11_rsnx_capab(ie, WLAN_RSNX_CAPAB_SAE_PK)))
continue;
/* TODO: Could be more thorough in checking what kind of
* signal strength or throughput estimate would be acceptable
* compared to the originally selected BSS. */
if (bss->est_throughput < 2000)
return false;
count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
bss, count, 0))
return true;
}
return false;
}
#endif /* CONFIG_SAE_PK */
static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
const u8 *match_ssid, size_t match_ssid_len,
struct wpa_bss *bss, int bssid_ignore_count,
bool debug_print)
{
int res;
bool wpa, check_ssid, osen, rsn_osen = false;
struct wpa_ie_data data;
#ifdef CONFIG_MBO
const u8 *assoc_disallow;
#endif /* CONFIG_MBO */
#ifdef CONFIG_SAE
u8 rsnxe_capa = 0;
#endif /* CONFIG_SAE */
const u8 *ie;
ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
wpa = ie && ie[1];
ie = wpa_bss_get_rsne(wpa_s, bss, ssid, false);
wpa |= ie && ie[1];
if (ie && wpa_parse_wpa_ie_rsn(ie, 2 + ie[1], &data) == 0 &&
(data.key_mgmt & WPA_KEY_MGMT_OSEN))
rsn_osen = true;
ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
osen = ie != NULL;
#ifdef CONFIG_SAE
ie = wpa_bss_get_rsnxe(wpa_s, bss, ssid, false);
if (ie && ie[0] == WLAN_EID_VENDOR_SPECIFIC && ie[1] >= 4 + 1)
rsnxe_capa = ie[4 + 2];
else if (ie && ie[1] >= 1)
rsnxe_capa = ie[2];
#endif /* CONFIG_SAE */
check_ssid = wpa || ssid->ssid_len > 0;
if (wpas_network_disabled(wpa_s, ssid)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
return false;
}
res = wpas_temp_disabled(wpa_s, ssid);
if (res > 0) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - disabled temporarily for %d second(s)",
res);
return false;
}
#ifdef CONFIG_WPS
if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && bssid_ignore_count) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - BSSID ignored (WPS)");
return false;
}
if (wpa && ssid->ssid_len == 0 &&
wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
check_ssid = false;
if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
/* Only allow wildcard SSID match if an AP advertises active
* WPS operation that matches our mode. */
check_ssid = ssid->ssid_len > 0 ||
!wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss);
}
#endif /* CONFIG_WPS */
if (ssid->bssid_set && ssid->ssid_len == 0 &&
ether_addr_equal(bss->bssid, ssid->bssid))
check_ssid = false;
if (check_ssid &&
(match_ssid_len != ssid->ssid_len ||
os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
return false;
}
if (ssid->bssid_set &&
!ether_addr_equal(bss->bssid, ssid->bssid)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
return false;
}
/* check the list of BSSIDs to ignore */
if (ssid->num_bssid_ignore &&
addr_in_list(bss->bssid, ssid->bssid_ignore,
ssid->num_bssid_ignore)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - BSSID configured to be ignored");
return false;
}
/* if there is a list of accepted BSSIDs, only accept those APs */
if (ssid->num_bssid_accept &&
!addr_in_list(bss->bssid, ssid->bssid_accept,
ssid->num_bssid_accept)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - BSSID not in list of accepted values");
return false;
}
if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss, debug_print))
return false;
if (!osen && !wpa &&
!(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
!(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - non-WPA network not allowed");
return false;
}
#ifdef CONFIG_WEP
if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && has_wep_key(ssid)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - ignore WPA/WPA2 AP for WEP network block");
return false;
}
#endif /* CONFIG_WEP */
if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen && !rsn_osen) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - non-OSEN network not allowed");
return false;
}
if (!wpa_supplicant_match_privacy(bss, ssid)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy mismatch");
return false;
}
if (ssid->mode != WPAS_MODE_MESH && !bss_is_ess(bss) &&
!bss_is_pbss(bss)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - not ESS, PBSS, or MBSS");
return false;
}
if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - PBSS mismatch (ssid %d bss %d)",
ssid->pbss, bss_is_pbss(bss));
return false;
}
if (!freq_allowed(ssid->freq_list, bss->freq)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - frequency not allowed");
return false;
}
#ifdef CONFIG_MESH
if (ssid->mode == WPAS_MODE_MESH && ssid->frequency > 0 &&
ssid->frequency != bss->freq) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - frequency not allowed (mesh)");
return false;
}
#endif /* CONFIG_MESH */
if (!rate_match(wpa_s, ssid, bss, debug_print)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - rate sets do not match");
return false;
}
#ifdef CONFIG_SAE
/* When using SAE Password Identifier and when operationg on the 6 GHz
* band, only H2E is allowed. */
if ((wpa_s->conf->sae_pwe == SAE_PWE_HASH_TO_ELEMENT ||
is_6ghz_freq(bss->freq) || ssid->sae_password_id) &&
wpa_s->conf->sae_pwe != SAE_PWE_FORCE_HUNT_AND_PECK &&
wpa_key_mgmt_sae(ssid->key_mgmt) &&
!(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_H2E))) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - SAE H2E required, but not supported by the AP");
return false;
}
#endif /* CONFIG_SAE */
#ifdef CONFIG_SAE_PK
if (ssid->sae_pk == SAE_PK_MODE_ONLY &&
!(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK))) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - SAE-PK required, but not supported by the AP");
return false;
}
#endif /* CONFIG_SAE_PK */
#ifndef CONFIG_IBSS_RSN
if (ssid->mode == WPAS_MODE_IBSS &&
!(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPA_NONE))) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - IBSS RSN not supported in the build");
return false;
}
#endif /* !CONFIG_IBSS_RSN */
#ifdef CONFIG_P2P
if (ssid->p2p_group &&
!wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
!wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
return false;
}
if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
struct wpabuf *p2p_ie;
u8 dev_addr[ETH_ALEN];
ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
if (!ie) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - no P2P element");
return false;
}
p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
if (!p2p_ie) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - could not fetch P2P element");
return false;
}
if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 ||
!ether_addr_equal(dev_addr, ssid->go_p2p_dev_addr)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - no matching GO P2P Device Address in P2P element");
wpabuf_free(p2p_ie);
return false;
}
wpabuf_free(p2p_ie);
}
/*
* TODO: skip the AP if its P2P IE has Group Formation bit set in the
* P2P Group Capability Bitmap and we are not in Group Formation with
* that device.
*/
#endif /* CONFIG_P2P */
if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) {
struct os_reltime diff;
os_reltime_sub(&wpa_s->scan_min_time, &bss->last_update, &diff);
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - scan result not recent enough (%u.%06u seconds too old)",
(unsigned int) diff.sec,
(unsigned int) diff.usec);
return false;
}
#ifdef CONFIG_MBO
#ifdef CONFIG_TESTING_OPTIONS
if (wpa_s->ignore_assoc_disallow)
goto skip_assoc_disallow;
#endif /* CONFIG_TESTING_OPTIONS */
assoc_disallow = wpas_mbo_check_assoc_disallow(bss);
if (assoc_disallow && assoc_disallow[1] >= 1) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - MBO association disallowed (reason %u)",
assoc_disallow[2]);
return false;
}
if (wpa_is_bss_tmp_disallowed(wpa_s, bss)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - AP temporarily disallowed");
return false;
}
#ifdef CONFIG_TESTING_OPTIONS
skip_assoc_disallow:
#endif /* CONFIG_TESTING_OPTIONS */
#endif /* CONFIG_MBO */
#ifdef CONFIG_DPP
if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
!wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, wpa_s->own_addr,
ssid) &&
(!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
!ssid->dpp_csign)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - no PMKSA entry for DPP");
return false;
}
#endif /* CONFIG_DPP */
#ifdef CONFIG_SAE_PK
if (ssid->sae_pk == SAE_PK_MODE_AUTOMATIC &&
wpa_key_mgmt_sae(ssid->key_mgmt) &&
((ssid->sae_password &&
sae_pk_valid_password(ssid->sae_password)) ||
(!ssid->sae_password && ssid->passphrase &&
sae_pk_valid_password(ssid->passphrase))) &&
!(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK)) &&
sae_pk_acceptable_bss_with_pk(wpa_s, bss, ssid, match_ssid,
match_ssid_len)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - another acceptable BSS with SAE-PK in the same ESS");
return false;
}
#endif /* CONFIG_SAE_PK */
if (bss->ssid_len == 0) {
#ifdef CONFIG_OWE
const u8 *owe_ssid = NULL;
size_t owe_ssid_len = 0;
owe_trans_ssid(wpa_s, bss, &owe_ssid, &owe_ssid_len);
if (owe_ssid && owe_ssid_len &&
owe_ssid_len == ssid->ssid_len &&
os_memcmp(owe_ssid, ssid->ssid, owe_ssid_len) == 0) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - no SSID in BSS entry for a possible OWE transition mode BSS");
int_array_add_unique(&wpa_s->owe_trans_scan_freq,
bss->freq);
return false;
}
#endif /* CONFIG_OWE */
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - no SSID known for the BSS");
return false;
}
if (!wpas_valid_ml_bss(wpa_s, bss)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - ML BSS going to be removed");
return false;
}
/* Matching configuration found */
return true;
}
struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
int i, struct wpa_bss *bss,
struct wpa_ssid *group,
int only_first_ssid, int debug_print)
{
u8 wpa_ie_len, rsn_ie_len;
const u8 *ie;
struct wpa_ssid *ssid;
int osen;
const u8 *match_ssid;
size_t match_ssid_len;
int bssid_ignore_count;
ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
wpa_ie_len = ie ? ie[1] : 0;
ie = wpa_bss_get_rsne(wpa_s, bss, NULL, false);
rsn_ie_len = ie ? ie[1] : 0;
ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
osen = ie != NULL;
if (debug_print) {
wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
" ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
i, MAC2STR(bss->bssid),
wpa_ssid_txt(bss->ssid, bss->ssid_len),
wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
bss->freq,
wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
" wps" : "",
(wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
? " p2p" : "",
osen ? " osen=1" : "");
}
bssid_ignore_count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
if (bssid_ignore_count) {
int limit = 1;
if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
/*
* When only a single network is enabled, we can
* trigger BSSID ignoring on the first failure. This
* should not be done with multiple enabled networks to
* avoid getting forced to move into a worse ESS on
* single error if there are no other BSSes of the
* current ESS.
*/
limit = 0;
}
if (bssid_ignore_count > limit) {
if (debug_print) {
wpa_dbg(wpa_s, MSG_DEBUG,
" skip - BSSID ignored (count=%d limit=%d)",
bssid_ignore_count, limit);
}
return NULL;
}
}
match_ssid = bss->ssid;
match_ssid_len = bss->ssid_len;
owe_trans_ssid(wpa_s, bss, &match_ssid, &match_ssid_len);
if (match_ssid_len == 0) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
return NULL;
}
if (disallowed_bssid(wpa_s, bss->bssid)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
return NULL;
}
if (disallowed_ssid(wpa_s, match_ssid, match_ssid_len)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
return NULL;
}
if (disabled_freq(wpa_s, bss->freq)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - channel disabled");
return NULL;
}
if (wnm_is_bss_excluded(wpa_s, bss)) {
if (debug_print)
wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID excluded");
return NULL;
}
for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
bss, bssid_ignore_count, debug_print))
return ssid;
}
/* No matching configuration found */
return NULL;
}
static struct wpa_bss *
wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
struct wpa_ssid *group,
struct wpa_ssid **selected_ssid,
int only_first_ssid)
{
unsigned int i;
if (wpa_s->current_ssid) {
struct wpa_ssid *ssid;
wpa_dbg(wpa_s, MSG_DEBUG,
"Scan results matching the currently selected network");
for (i = 0; i < wpa_s->last_scan_res_used; i++) {
struct wpa_bss *bss = wpa_s->last_scan_res[i];
ssid = wpa_scan_res_match(wpa_s, i, bss, group,
only_first_ssid, 0);
if (ssid != wpa_s->current_ssid)
continue;
wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR
" freq=%d level=%d snr=%d est_throughput=%u",
i, MAC2STR(bss->bssid), bss->freq, bss->level,
bss->snr, bss->est_throughput);
}
}
if (only_first_ssid)
wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
group->id);
else
wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
group->priority);
for (i = 0; i < wpa_s->last_scan_res_used; i++) {
struct wpa_bss *bss = wpa_s->last_scan_res[i];
wpa_s->owe_transition_select = 1;
*selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
only_first_ssid, 1);
wpa_s->owe_transition_select = 0;
if (!*selected_ssid)
continue;
wpa_dbg(wpa_s, MSG_DEBUG, " selected %sBSS " MACSTR
" ssid='%s'",
bss == wpa_s->current_bss ? "current ": "",
MAC2STR(bss->bssid),
wpa_ssid_txt(bss->ssid, bss->ssid_len));
return bss;
}
return NULL;
}
struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
struct wpa_ssid **selected_ssid)
{
struct wpa_bss *selected = NULL;
size_t prio;
struct wpa_ssid *next_ssid = NULL;
struct wpa_ssid *ssid;
if (wpa_s->last_scan_res == NULL ||
wpa_s->last_scan_res_used == 0)
return NULL; /* no scan results from last update */
if (wpa_s->next_ssid) {
/* check that next_ssid is still valid */
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
if (ssid == wpa_s->next_ssid)
break;
}
next_ssid = ssid;
wpa_s->next_ssid = NULL;
}
while (selected == NULL) {
for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
if (next_ssid && next_ssid->priority ==
wpa_s->conf->pssid[prio]->priority) {
selected = wpa_supplicant_select_bss(
wpa_s, next_ssid, selected_ssid, 1);
if (selected)
break;
}
selected = wpa_supplicant_select_bss(
wpa_s, wpa_s->conf->pssid[prio],
selected_ssid, 0);
if (selected)
break;
}
if (!selected &&
(wpa_s->bssid_ignore || wnm_active_bss_trans_mgmt(wpa_s)) &&
!wpa_s->countermeasures) {
wpa_dbg(wpa_s, MSG_DEBUG,
"No APs found - clear BSSID ignore list and try again");
wnm_btm_reset(wpa_s);
wpa_bssid_ignore_clear(wpa_s);
wpa_s->bssid_ignore_cleared = true;
} else if (selected == NULL)
break;
}
ssid = *selected_ssid;
if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
!ssid->passphrase && !ssid->ext_psk) {
const char *field_name, *txt = NULL;
wpa_dbg(wpa_s, MSG_DEBUG,
"PSK/passphrase not yet available for the selected network");
wpas_notify_network_request(wpa_s, ssid,
WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
field_name = wpa_supplicant_ctrl_req_to_string(
WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
if (field_name == NULL)
return NULL;
wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
selected = NULL;
}
return selected;
}
static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
int timeout_sec, int timeout_usec)
{
if (!wpa_supplicant_enabled_networks(wpa_s)) {
/*
* No networks are enabled; short-circuit request so
* we don't wait timeout seconds before transitioning
* to INACTIVE state.
*/
wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
"since there are no enabled networks");
wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
return;
}
wpa_s->scan_for_connection = 1;
wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
}
static bool ml_link_probe_scan(struct wpa_supplicant *wpa_s)
{
if (!wpa_s->ml_connect_probe_ssid || !wpa_s->ml_connect_probe_bss)
return false;
wpa_msg(wpa_s, MSG_DEBUG,
"Request association with " MACSTR " after ML probe",
MAC2STR(wpa_s->ml_connect_probe_bss->bssid));
wpa_supplicant_associate(wpa_s, wpa_s->ml_connect_probe_bss,
wpa_s->ml_connect_probe_ssid);
wpa_s->ml_connect_probe_ssid = NULL;
wpa_s->ml_connect_probe_bss = NULL;
return true;
}
static int wpa_supplicant_connect_ml_missing(struct wpa_supplicant *wpa_s,
struct wpa_bss *selected,
struct wpa_ssid *ssid)
{
int *freqs;
u16 missing_links = 0, removed_links;
u8 ap_mld_id;
if (!((wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_MLO) &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)))
return 0;
if (wpa_bss_parse_basic_ml_element(wpa_s, selected, NULL,
&missing_links, ssid,
&ap_mld_id) ||
!missing_links)
return 0;
removed_links = wpa_bss_parse_reconf_ml_element(wpa_s, selected);
missing_links &= ~removed_links;
if (!missing_links)
return 0;
wpa_dbg(wpa_s, MSG_DEBUG,
"MLD: Doing an ML probe for missing links 0x%04x",
missing_links);
freqs = os_malloc(sizeof(int) * 2);
if (!freqs)
return 0;
wpa_s->ml_connect_probe_ssid = ssid;
wpa_s->ml_connect_probe_bss = selected;
freqs[0] = selected->freq;
freqs[1] = 0;
wpa_s->manual_scan_passive = 0;
wpa_s->manual_scan_use_id = 0;
wpa_s->manual_scan_only_new = 0;
wpa_s->scan_id_count = 0;
os_free(wpa_s->manual_scan_freqs);
wpa_s->manual_scan_freqs = freqs;
os_memcpy(wpa_s->ml_probe_bssid, selected->bssid, ETH_ALEN);
/*
* In case the ML probe request is intended to retrieve information from
* the transmitted BSS, the AP MLD ID should be included and should be
* set to zero.
* In case the ML probe requested is intended to retrieve information
* from a non-transmitted BSS, the AP MLD ID should not be included.
*/
if (ap_mld_id)
wpa_s->ml_probe_mld_id = -1;
else
wpa_s->ml_probe_mld_id = 0;
if (ssid && ssid->ssid_len) {
os_free(wpa_s->ssids_from_scan_req);
wpa_s->num_ssids_from_scan_req = 0;
wpa_s->ssids_from_scan_req =
os_zalloc(sizeof(struct wpa_ssid_value));
if (wpa_s->ssids_from_scan_req) {
wpa_printf(MSG_DEBUG,
"MLD: ML probe: With direct SSID");
wpa_s->num_ssids_from_scan_req = 1;
wpa_s->ssids_from_scan_req[0].ssid_len = ssid->ssid_len;
os_memcpy(wpa_s->ssids_from_scan_req[0].ssid,
ssid->ssid, ssid->ssid_len);
}
}
wpa_s->ml_probe_links = missing_links;
wpa_s->normal_scans = 0;
wpa_s->scan_req = MANUAL_SCAN_REQ;
wpa_s->after_wps = 0;
wpa_s->known_wps_freq = 0;
wpa_supplicant_req_scan(wpa_s, 0, 0);
return 1;
}
int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
struct wpa_bss *selected,
struct wpa_ssid *ssid)
{
#ifdef IEEE8021X_EAPOL
if ((eap_is_wps_pbc_enrollee(&ssid->eap) &&
wpas_wps_partner_link_overlap_detect(wpa_s)) ||
wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
"PBC session overlap");
wpas_notify_wps_event_pbc_overlap(wpa_s);
wpa_s->wps_overlap = true;
#ifdef CONFIG_P2P
if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
wpa_s->p2p_in_provisioning) {
eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
wpa_s, NULL);
return -1;
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_WPS
wpas_wps_pbc_overlap(wpa_s);
wpas_wps_cancel(wpa_s);
#endif /* CONFIG_WPS */
return -1;
}
#endif /* IEEE8021X_EAPOL */
wpa_msg(wpa_s, MSG_DEBUG,
"Considering connect request: reassociate: %d selected: "
MACSTR " bssid: " MACSTR " pending: " MACSTR
" wpa_state: %s ssid=%p current_ssid=%p",
wpa_s->reassociate, MAC2STR(selected->bssid),
MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
wpa_supplicant_state_txt(wpa_s->wpa_state),
ssid, wpa_s->current_ssid);
/*
* Do not trigger new association unless the BSSID has changed or if
* reassociation is requested. If we are in process of associating with
* the selected BSSID, do not trigger new attempt.
*/
if (wpa_s->reassociate ||
(!ether_addr_equal(selected->bssid, wpa_s->bssid) &&
((wpa_s->wpa_state != WPA_ASSOCIATING &&
wpa_s->wpa_state != WPA_AUTHENTICATING) ||
(!is_zero_ether_addr(wpa_s->pending_bssid) &&
!ether_addr_equal(selected->bssid, wpa_s->pending_bssid)) ||
(is_zero_ether_addr(wpa_s->pending_bssid) &&
ssid != wpa_s->current_ssid)))) {
if (wpa_supplicant_scard_init(wpa_s, ssid)) {
wpa_supplicant_req_new_scan(wpa_s, 10, 0);
return 0;
}
if (wpa_supplicant_connect_ml_missing(wpa_s, selected, ssid))
return 0;
wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
MAC2STR(selected->bssid));
wpa_supplicant_associate(wpa_s, selected, ssid);
} else {
wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
"connect with the selected AP");
}
return 0;
}
static struct wpa_ssid *
wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
{
size_t prio;
struct wpa_ssid *ssid;
for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
{
if (wpas_network_disabled(wpa_s, ssid))
continue;
#ifndef CONFIG_IBSS_RSN
if (ssid->mode == WPAS_MODE_IBSS &&
!(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
WPA_KEY_MGMT_WPA_NONE))) {
wpa_msg(wpa_s, MSG_INFO,
"IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
wpa_ssid_txt(ssid->ssid,
ssid->ssid_len));
continue;
}
#endif /* !CONFIG_IBSS_RSN */
if (ssid->mode == WPAS_MODE_IBSS ||
ssid->mode == WPAS_MODE_AP ||
ssid->mode == WPAS_MODE_MESH)
return ssid;
}
}
return NULL;
}
/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
* on BSS added and BSS changed events */
static void wpa_supplicant_rsn_preauth_scan_results(
struct wpa_supplicant *wpa_s)
{
struct wpa_bss *bss;
if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
return;
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
const u8 *ssid, *rsn;
ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
if (ssid == NULL)
continue;
rsn = wpa_bss_get_rsne(wpa_s, bss, NULL, false);
if (rsn == NULL)
continue;
rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
}
}
#ifndef CONFIG_NO_ROAMING
static int wpas_get_snr_signal_info(u32 frequency, int avg_signal, int noise)
{
if (noise == WPA_INVALID_NOISE) {
if (IS_5GHZ(frequency)) {
noise = DEFAULT_NOISE_FLOOR_5GHZ;
} else if (is_6ghz_freq(frequency)) {
noise = DEFAULT_NOISE_FLOOR_6GHZ;
} else {
noise = DEFAULT_NOISE_FLOOR_2GHZ;
}
}
return avg_signal - noise;
}
static unsigned int
wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant *wpa_s,
const struct wpa_bss *bss, int snr)
{
int rate = wpa_bss_get_max_rate(bss);
const u8 *ies = wpa_bss_ie_ptr(bss);
size_t ie_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len;
enum chan_width max_cw = CHAN_WIDTH_UNKNOWN;
return wpas_get_est_tpt(wpa_s, ies, ie_len, rate, snr, bss->freq,
&max_cw);
}
static int wpas_evaluate_band_score(int frequency)
{
if (is_6ghz_freq(frequency))
return 2;
if (IS_5GHZ(frequency))
return 1;
return 0;
}
int wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant *wpa_s,
struct wpa_bss *current_bss,
struct wpa_bss *selected)
{
int min_diff, diff;
int cur_band_score, sel_band_score;
int to_5ghz, to_6ghz;
int cur_level, sel_level;
unsigned int cur_est, sel_est;
struct wpa_signal_info si;
int cur_snr = 0;
int ret = 0;
const u8 *cur_ies = wpa_bss_ie_ptr(current_bss);
const u8 *sel_ies = wpa_bss_ie_ptr(selected);
size_t cur_ie_len = current_bss->ie_len ? current_bss->ie_len :
current_bss->beacon_ie_len;
size_t sel_ie_len = selected->ie_len ? selected->ie_len :
selected->beacon_ie_len;
wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
" freq=%d level=%d snr=%d est_throughput=%u",
MAC2STR(current_bss->bssid),
current_bss->freq, current_bss->level,
current_bss->snr, current_bss->est_throughput);
wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
" freq=%d level=%d snr=%d est_throughput=%u",
MAC2STR(selected->bssid), selected->freq, selected->level,
selected->snr, selected->est_throughput);
if (wpas_ap_link_address(wpa_s, selected->bssid)) {
wpa_dbg(wpa_s, MSG_DEBUG, "MLD: associated to selected BSS");
return 0;
}
if (wpa_s->current_ssid->bssid_set &&
ether_addr_equal(selected->bssid, wpa_s->current_ssid->bssid)) {
wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
"has preferred BSSID");
return 1;
}
/*
* Try to poll the signal from the driver since this will allow to get
* more accurate values. In some cases, there can be big differences
* between the RSSI of the Probe Response frames of the AP we are
* associated with and the Beacon frames we hear from the same AP after
* association. This can happen, e.g., when there are two antennas that
* hear the AP very differently. If the driver chooses to hear the
* Probe Response frames during the scan on the "bad" antenna because
* it wants to save power, but knows to choose the other antenna after
* association, we will hear our AP with a low RSSI as part of the
* scan even when we can hear it decently on the other antenna. To cope
* with this, ask the driver to teach us how it hears the AP. Also, the
* scan results may be a bit old, since we can very quickly get fresh
* information about our currently associated AP.
*/
if (wpa_drv_signal_poll(wpa_s, &si) == 0 &&
(si.data.avg_beacon_signal || si.data.avg_signal)) {
/*
* Normalize avg_signal to the RSSI over 20 MHz, as the
* throughput is estimated based on the RSSI over 20 MHz
*/
cur_level = si.data.avg_beacon_signal ?
si.data.avg_beacon_signal :
(si.data.avg_signal -
wpas_channel_width_rssi_bump(cur_ies, cur_ie_len,
si.chanwidth));
cur_snr = wpas_get_snr_signal_info(si.frequency, cur_level,
si.current_noise);
cur_est = wpas_get_est_throughput_from_bss_snr(wpa_s,
current_bss,
cur_snr);
wpa_dbg(wpa_s, MSG_DEBUG,
"Using signal poll values for the current BSS: level=%d snr=%d est_throughput=%u",
cur_level, cur_snr, cur_est);
} else {
/* Level and SNR are measured over 20 MHz channel */
cur_level = current_bss->level;
cur_snr = current_bss->snr;
cur_est = current_bss->est_throughput;
}
/* Adjust the SNR of BSSes based on the channel width. */
cur_level += wpas_channel_width_rssi_bump(cur_ies, cur_ie_len,
current_bss->max_cw);
cur_snr = wpas_adjust_snr_by_chanwidth(cur_ies, cur_ie_len,
current_bss->max_cw, cur_snr);
sel_est = selected->est_throughput;
sel_level = selected->level +
wpas_channel_width_rssi_bump(sel_ies, sel_ie_len,
selected->max_cw);
if (sel_est > cur_est + 5000) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Allow reassociation - selected BSS has better estimated throughput");
return 1;
}
to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
to_6ghz = is_6ghz_freq(selected->freq) &&
!is_6ghz_freq(current_bss->freq);
if (cur_level < 0 &&
cur_level > sel_level + to_5ghz * 2 + to_6ghz * 2 &&
sel_est < cur_est * 1.2) {
wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
"signal level");
return 0;
}
if (cur_est > sel_est + 5000) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Skip roam - Current BSS has better estimated throughput");
return 0;
}
if (cur_snr > GREAT_SNR) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Skip roam - Current BSS has good SNR (%u > %u)",
cur_snr, GREAT_SNR);
return 0;
}
if (cur_level < -85) /* ..-86 dBm */
min_diff = 1;
else if (cur_level < -80) /* -85..-81 dBm */
min_diff = 2;
else if (cur_level < -75) /* -80..-76 dBm */
min_diff = 3;
else if (cur_level < -70) /* -75..-71 dBm */
min_diff = 4;
else if (cur_level < 0) /* -70..-1 dBm */
min_diff = 5;
else /* unspecified units (not in dBm) */
min_diff = 2;
if (cur_est > sel_est * 1.5)
min_diff += 10;
else if (cur_est > sel_est * 1.2)
min_diff += 5;
else if (cur_est > sel_est * 1.1)
min_diff += 2;
else if (cur_est > sel_est)
min_diff++;
else if (sel_est > cur_est * 1.5)
min_diff -= 10;
else if (sel_est > cur_est * 1.2)
min_diff -= 5;
else if (sel_est > cur_est * 1.1)
min_diff -= 2;
else if (sel_est > cur_est)
min_diff--;
cur_band_score = wpas_evaluate_band_score(current_bss->freq);
sel_band_score = wpas_evaluate_band_score(selected->freq);
min_diff += (cur_band_score - sel_band_score) * 2;
if (wpa_s->signal_threshold && cur_level <= wpa_s->signal_threshold &&
sel_level > wpa_s->signal_threshold)
min_diff -= 2;
diff = sel_level - cur_level;
if (diff < min_diff) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Skip roam - too small difference in signal level (%d < %d)",
diff, min_diff);
ret = 0;
} else {
wpa_dbg(wpa_s, MSG_DEBUG,
"Allow reassociation due to difference in signal level (%d >= %d)",
diff, min_diff);
ret = 1;
}
wpa_msg_ctrl(wpa_s, MSG_INFO, "%scur_bssid=" MACSTR
" cur_freq=%d cur_level=%d cur_est=%d sel_bssid=" MACSTR
" sel_freq=%d sel_level=%d sel_est=%d",
ret ? WPA_EVENT_DO_ROAM : WPA_EVENT_SKIP_ROAM,
MAC2STR(current_bss->bssid),
current_bss->freq, cur_level, cur_est,
MAC2STR(selected->bssid),
selected->freq, sel_level, sel_est);
return ret;
}
#endif /* CONFIG_NO_ROAMING */
static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
struct wpa_bss *selected,
struct wpa_ssid *ssid)
{
struct wpa_bss *current_bss = NULL;
const u8 *bssid;
if (wpa_s->reassociate)
return 1; /* explicit request to reassociate */
if (wpa_s->wpa_state < WPA_ASSOCIATED)
return 1; /* we are not associated; continue */
if (wpa_s->current_ssid == NULL)
return 1; /* unknown current SSID */
if (wpa_s->current_ssid != ssid)
return 1; /* different network block */
if (wpas_driver_bss_selection(wpa_s))
return 0; /* Driver-based roaming */
if (wpa_s->valid_links)
bssid = wpa_s->links[wpa_s->mlo_assoc_link_id].bssid;
else
bssid = wpa_s->bssid;
if (wpa_s->current_ssid->ssid)
current_bss = wpa_bss_get(wpa_s, bssid,
wpa_s->current_ssid->ssid,
wpa_s->current_ssid->ssid_len);
if (!current_bss)
current_bss = wpa_bss_get_bssid(wpa_s, bssid);
if (!current_bss)
return 1; /* current BSS not seen in scan results */
if (current_bss == selected)
return 0;
if (selected->last_update_idx > current_bss->last_update_idx)
return 1; /* current BSS not seen in the last scan */
#ifndef CONFIG_NO_ROAMING
return wpa_supplicant_need_to_roam_within_ess(wpa_s, current_bss,
selected);
#else /* CONFIG_NO_ROAMING */
return 0;
#endif /* CONFIG_NO_ROAMING */
}
static int wpas_trigger_6ghz_scan(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
struct wpa_driver_scan_params params;
unsigned int j;
wpa_dbg(wpa_s, MSG_INFO, "Triggering 6GHz-only scan");
os_memset(&params, 0, sizeof(params));
params.non_coloc_6ghz = wpa_s->last_scan_non_coloc_6ghz;
for (j = 0; j < data->scan_info.num_ssids; j++)
params.ssids[j] = data->scan_info.ssids[j];
params.num_ssids = data->scan_info.num_ssids;
wpa_add_scan_freqs_list(wpa_s, HOSTAPD_MODE_IEEE80211A, &params,
true, false, false);
if (!wpa_supplicant_trigger_scan(wpa_s, &params, true, true)) {
wpa_s->scan_in_progress_6ghz = true;
wpas_notify_scan_in_progress_6ghz(wpa_s);
os_free(params.freqs);
return 1;
}
wpa_dbg(wpa_s, MSG_INFO, "Failed to trigger 6GHz-only scan");
os_free(params.freqs);
return 0;
}
static bool wpas_short_ssid_match(struct wpa_supplicant *wpa_s,
struct wpa_scan_results *scan_res)
{
size_t i;
struct wpa_ssid *ssid = wpa_s->current_ssid;
u32 current_ssid_short = ieee80211_crc32(ssid->ssid, ssid->ssid_len);
for (i = 0; i < scan_res->num; i++) {
struct wpa_scan_res *res = scan_res->res[i];
const u8 *rnr_ie, *ie_end;
const struct ieee80211_neighbor_ap_info *info;
size_t left;
rnr_ie = wpa_scan_get_ie(res, WLAN_EID_REDUCED_NEIGHBOR_REPORT);
if (!rnr_ie)
continue;
ie_end = rnr_ie + 2 + rnr_ie[1];
rnr_ie += 2;
left = ie_end - rnr_ie;
if (left < sizeof(struct ieee80211_neighbor_ap_info))
continue;
info = (const struct ieee80211_neighbor_ap_info *) rnr_ie;
if (info->tbtt_info_len < 11)
continue; /* short SSID not included */
left -= sizeof(struct ieee80211_neighbor_ap_info);
rnr_ie += sizeof(struct ieee80211_neighbor_ap_info);
while (left >= info->tbtt_info_len && rnr_ie + 11 <= ie_end) {
/* Skip TBTT offset and BSSID */
u32 short_ssid = WPA_GET_LE32(rnr_ie + 1 + ETH_ALEN);
if (short_ssid == current_ssid_short)
return true;
left -= info->tbtt_info_len;
rnr_ie += info->tbtt_info_len;
}
}
return false;
}
/*
* Return a negative value if no scan results could be fetched or if scan
* results should not be shared with other virtual interfaces.
* Return 0 if scan results were fetched and may be shared with other
* interfaces.
* Return 1 if scan results may be shared with other virtual interfaces but may
* not trigger any operations.
* Return 2 if the interface was removed and cannot be used.
*/
static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
union wpa_event_data *data,
int own_request, int update_only)
{
struct wpa_scan_results *scan_res = NULL;
int ret = 0;
int ap = 0;
bool trigger_6ghz_scan;
bool short_ssid_match_found = false;
#ifndef CONFIG_NO_RANDOM_POOL
size_t i, num;
#endif /* CONFIG_NO_RANDOM_POOL */
#ifdef CONFIG_AP
if (wpa_s->ap_iface)
ap = 1;
#endif /* CONFIG_AP */
trigger_6ghz_scan = wpa_s->crossed_6ghz_dom &&
wpa_s->last_scan_all_chan;
wpa_s->crossed_6ghz_dom = false;
wpa_s->last_scan_all_chan = false;
wpa_supplicant_notify_scanning(wpa_s, 0);
scan_res = wpa_supplicant_get_scan_results(wpa_s,
data ? &data->scan_info :
NULL, 1, NULL);
if (wpa_s->scan_in_progress_6ghz) {
wpa_s->scan_in_progress_6ghz = false;
wpas_notify_scan_in_progress_6ghz(wpa_s);
}
if (scan_res == NULL) {
if (wpa_s->conf->ap_scan == 2 || ap ||
wpa_s->scan_res_handler == scan_only_handler)
return -1;
if (!own_request)
return -1;
if (data && data->scan_info.external_scan)
return -1;
if (wpa_s->scan_res_fail_handler) {
void (*handler)(struct wpa_supplicant *wpa_s);
handler = wpa_s->scan_res_fail_handler;
wpa_s->scan_res_fail_handler = NULL;
handler(wpa_s);
} else {
wpa_dbg(wpa_s, MSG_DEBUG,
"Failed to get scan results - try scanning again");
wpa_supplicant_req_new_scan(wpa_s, 1, 0);
}
ret = -1;
goto scan_work_done;
}
#ifndef CONFIG_NO_RANDOM_POOL
num = scan_res->num;
if (num > 10)
num = 10;
for (i = 0; i < num; i++) {
u8 buf[5];
struct wpa_scan_res *res = scan_res->res[i];
buf[0] = res->bssid[5];
buf[1] = res->qual & 0xff;
buf[2] = res->noise & 0xff;
buf[3] = res->level & 0xff;
buf[4] = res->tsf & 0xff;
random_add_randomness(buf, sizeof(buf));
}
#endif /* CONFIG_NO_RANDOM_POOL */
wpa_s->last_scan_external = data && data->scan_info.external_scan;
if (update_only) {
ret = 1;
goto scan_work_done;
}
if (own_request && wpa_s->scan_res_handler &&
!(data && data->scan_info.external_scan)) {
void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
struct wpa_scan_results *scan_res);
scan_res_handler = wpa_s->scan_res_handler;
wpa_s->scan_res_handler = NULL;
scan_res_handler(wpa_s, scan_res);
ret = 1;
goto scan_work_done;
}
wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
wpa_s->own_scan_running,
data ? data->scan_info.external_scan : 0);
if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
own_request && !(data && data->scan_info.external_scan)) {
wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
wpa_s->manual_scan_id);
wpa_s->manual_scan_use_id = 0;
} else {
wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
}
wpas_notify_scan_results(wpa_s);
wpas_notify_scan_done(wpa_s, 1);
if (ap) {
wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
#ifdef CONFIG_AP
if (wpa_s->ap_iface->scan_cb)
wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
#endif /* CONFIG_AP */
goto scan_work_done;
}
if (data && data->scan_info.external_scan) {
wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
wpa_scan_results_free(scan_res);
return 0;
}
if (sme_proc_obss_scan(wpa_s) > 0)
goto scan_work_done;
#ifndef CONFIG_NO_RRM
if (own_request && data &&
wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
goto scan_work_done;
#endif /* CONFIG_NO_RRM */
if (ml_link_probe_scan(wpa_s))
goto scan_work_done;
if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
goto scan_work_done;
if (autoscan_notify_scan(wpa_s, scan_res))
goto scan_work_done;
if (wpa_s->disconnected) {
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
goto scan_work_done;
}
if (!wpas_driver_bss_selection(wpa_s) &&
bgscan_notify_scan(wpa_s, scan_res) == 1)
goto scan_work_done;
wpas_wps_update_ap_info(wpa_s, scan_res);
if (wnm_scan_process(wpa_s, false) > 0)
goto scan_work_done;
if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
wpa_s->wpa_state < WPA_COMPLETED)
goto scan_work_done;
if (wpa_s->current_ssid && trigger_6ghz_scan && own_request && data &&
wpas_short_ssid_match(wpa_s, scan_res)) {
wpa_dbg(wpa_s, MSG_INFO, "Short SSID match in scan results");
short_ssid_match_found = true;
}
wpa_scan_results_free(scan_res);
if (own_request && wpa_s->scan_work) {
struct wpa_radio_work *work = wpa_s->scan_work;
wpa_s->scan_work = NULL;
radio_work_done(work);
}
os_free(wpa_s->last_scan_freqs);
wpa_s->last_scan_freqs = NULL;
wpa_s->num_last_scan_freqs = 0;
if (own_request && data &&
data->scan_info.freqs && data->scan_info.num_freqs) {
wpa_s->last_scan_freqs = os_malloc(sizeof(int) *
data->scan_info.num_freqs);
if (wpa_s->last_scan_freqs) {
os_memcpy(wpa_s->last_scan_freqs,
data->scan_info.freqs,
sizeof(int) * data->scan_info.num_freqs);
wpa_s->num_last_scan_freqs = data->scan_info.num_freqs;
}
}
if (wpa_s->supp_pbc_active && !wpas_wps_partner_link_scan_done(wpa_s))
return ret;
if (short_ssid_match_found && wpas_trigger_6ghz_scan(wpa_s, data) > 0)
return 1;
return wpas_select_network_from_last_scan(wpa_s, 1, own_request,
trigger_6ghz_scan, data);
scan_work_done:
wpa_scan_results_free(scan_res);
if (own_request && wpa_s->scan_work) {
struct wpa_radio_work *work = wpa_s->scan_work;
wpa_s->scan_work = NULL;
radio_work_done(work);
}
return ret;
}
/**
* Select a network from the last scan
* @wpa_s: Pointer to wpa_supplicant data
* @new_scan: Whether this function was called right after a scan has finished
* @own_request: Whether the scan was requested by this interface
* @trigger_6ghz_scan: Whether to trigger a 6ghz-only scan when applicable
* @data: Scan data from scan that finished if applicable
*
* See _wpa_supplicant_event_scan_results() for return values.
*/
static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
int new_scan, int own_request,
bool trigger_6ghz_scan,
union wpa_event_data *data)
{
struct wpa_bss *selected;
struct wpa_ssid *ssid = NULL;
int time_to_reenable = wpas_reenabled_network_time(wpa_s);
if (time_to_reenable > 0) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Postpone network selection by %d seconds since all networks are disabled",
time_to_reenable);
eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
eloop_register_timeout(time_to_reenable, 0,
wpas_network_reenabled, wpa_s, NULL);
return 0;
}
if (wpa_s->p2p_mgmt)
return 0; /* no normal connection on p2p_mgmt interface */
wpa_s->owe_transition_search = 0;
#ifdef CONFIG_OWE
os_free(wpa_s->owe_trans_scan_freq);
wpa_s->owe_trans_scan_freq = NULL;
#endif /* CONFIG_OWE */
selected = wpa_supplicant_pick_network(wpa_s, &ssid);
#ifdef CONFIG_MESH
if (wpa_s->ifmsh) {
wpa_msg(wpa_s, MSG_INFO,
"Avoiding join because we already joined a mesh group");
return 0;
}
#endif /* CONFIG_MESH */
if (selected) {
int skip;
skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
if (skip) {
if (new_scan)
wpa_supplicant_rsn_preauth_scan_results(wpa_s);
return 0;
}
wpa_s->suitable_network++;
if (ssid != wpa_s->current_ssid &&
wpa_s->wpa_state >= WPA_AUTHENTICATING) {
wpa_s->own_disconnect_req = 1;
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
}
if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
return -1;
}
wpa_s->supp_pbc_active = false;
if (new_scan)
wpa_supplicant_rsn_preauth_scan_results(wpa_s);
/*
* Do not allow other virtual radios to trigger operations based
* on these scan results since we do not want them to start
* other associations at the same time.
*/
return 1;
} else {
wpa_s->no_suitable_network++;
wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
ssid = wpa_supplicant_pick_new_network(wpa_s);
if (ssid) {
wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
wpa_supplicant_associate(wpa_s, NULL, ssid);
if (new_scan)
wpa_supplicant_rsn_preauth_scan_results(wpa_s);
} else if (own_request) {
if (wpa_s->support_6ghz && trigger_6ghz_scan && data &&
wpas_trigger_6ghz_scan(wpa_s, data) > 0)
return 1;
/*
* No SSID found. If SCAN results are as a result of
* own scan request and not due to a scan request on
* another shared interface, try another scan.
*/
int timeout_sec = wpa_s->scan_interval;
int timeout_usec = 0;
#ifdef CONFIG_P2P
int res;
res = wpas_p2p_scan_no_go_seen(wpa_s);
if (res == 2)
return 2;
if (res == 1)
return 0;
if (wpas_p2p_retry_limit_exceeded(wpa_s))
return 0;
if (wpa_s->p2p_in_provisioning ||
wpa_s->show_group_started ||
wpa_s->p2p_in_invitation) {
/*
* Use shorter wait during P2P Provisioning
* state and during P2P join-a-group operation
* to speed up group formation.
*/
timeout_sec = 0;
timeout_usec = 250000;
wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
timeout_usec);
return 0;
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_INTERWORKING
if (wpa_s->conf->auto_interworking &&
wpa_s->conf->interworking &&
wpa_s->conf->cred) {
wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
"start ANQP fetch since no matching "
"networks found");
wpa_s->network_select = 1;
wpa_s->auto_network_select = 1;
interworking_start_fetch_anqp(wpa_s);
return 1;
}
#endif /* CONFIG_INTERWORKING */
#ifdef CONFIG_WPS
if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
timeout_sec = 0;
timeout_usec = 500000;
wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
timeout_usec);
return 0;
}
#endif /* CONFIG_WPS */
#ifdef CONFIG_OWE
if (wpa_s->owe_transition_search) {
wpa_dbg(wpa_s, MSG_DEBUG,
"OWE: Use shorter wait during transition mode search");
timeout_sec = 0;
timeout_usec = 500000;
if (wpa_s->owe_trans_scan_freq) {
os_free(wpa_s->next_scan_freqs);
wpa_s->next_scan_freqs =
wpa_s->owe_trans_scan_freq;
wpa_s->owe_trans_scan_freq = NULL;
timeout_usec = 100000;
}
wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
timeout_usec);
return 0;
}
#endif /* CONFIG_OWE */
if (wpa_supplicant_req_sched_scan(wpa_s))
wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
timeout_usec);
wpa_msg_ctrl(wpa_s, MSG_INFO,
WPA_EVENT_NETWORK_NOT_FOUND);
}
}
return 0;
}
static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
struct wpa_supplicant *ifs;
int res;
res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
if (res == 2) {
/*
* Interface may have been removed, so must not dereference
* wpa_s after this.
*/
return 1;
}
if (res < 0) {
/*
* If no scan results could be fetched, then no need to
* notify those interfaces that did not actually request
* this scan. Similarly, if scan results started a new operation on this
* interface, do not notify other interfaces to avoid concurrent
* operations during a connection attempt.
*/
return 0;
}
/*
* Check other interfaces to see if they share the same radio. If
* so, they get updated with this same scan info.
*/
dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
radio_list) {
if (ifs != wpa_s) {
wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
"sibling", ifs->ifname);
res = _wpa_supplicant_event_scan_results(ifs, data, 0,
res > 0);
if (res < 0)
return 0;
}
}
return 0;
}
#endif /* CONFIG_NO_SCAN_PROCESSING */
int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
{
#ifdef CONFIG_NO_SCAN_PROCESSING
return -1;
#else /* CONFIG_NO_SCAN_PROCESSING */
struct os_reltime now;
wpa_s->ignore_post_flush_scan_res = 0;
if (wpa_s->last_scan_res_used == 0)
return -1;
os_get_reltime(&now);
if (os_reltime_expired(&now, &wpa_s->last_scan,
wpa_s->conf->scan_res_valid_for_connect)) {
wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
return -1;
} else if (wpa_s->crossed_6ghz_dom) {
wpa_printf(MSG_DEBUG, "Fast associate: Crossed 6 GHz domain");
return -1;
}
return wpas_select_network_from_last_scan(wpa_s, 0, 1, false, NULL);
#endif /* CONFIG_NO_SCAN_PROCESSING */
}
int wpa_wps_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
{
#ifdef CONFIG_NO_SCAN_PROCESSING
return -1;
#else /* CONFIG_NO_SCAN_PROCESSING */
return wpas_select_network_from_last_scan(wpa_s, 1, 1, false, NULL);
#endif /* CONFIG_NO_SCAN_PROCESSING */
}
#ifdef CONFIG_WNM
static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
if (wpa_s->wpa_state < WPA_ASSOCIATED)
return;
if (!wpa_s->no_keep_alive) {
wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
MAC2STR(wpa_s->bssid));
/* TODO: could skip this if normal data traffic has been sent */
/* TODO: Consider using some more appropriate data frame for
* this */
if (wpa_s->l2)
l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
(u8 *) "", 0);
}
#ifdef CONFIG_SME
if (wpa_s->sme.bss_max_idle_period) {
unsigned int msec;
msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
if (msec > 100)
msec -= 100;
eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
wnm_bss_keep_alive, wpa_s, NULL);
}
#endif /* CONFIG_SME */
}
static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
const u8 *ies, size_t ies_len)
{
struct ieee802_11_elems elems;
if (ies == NULL)
return;
if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
return;
#ifdef CONFIG_SME
if (elems.bss_max_idle_period) {
unsigned int msec;
wpa_s->sme.bss_max_idle_period =
WPA_GET_LE16(elems.bss_max_idle_period);
wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
"TU)%s", wpa_s->sme.bss_max_idle_period,
(elems.bss_max_idle_period[2] & 0x01) ?
" (protected keep-live required)" : "");
if (wpa_s->sme.bss_max_idle_period == 0)
wpa_s->sme.bss_max_idle_period = 1;
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
/* msec times 1000 */
msec = wpa_s->sme.bss_max_idle_period * 1024;
if (msec > 100)
msec -= 100;
eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
wnm_bss_keep_alive, wpa_s,
NULL);
}
} else {
wpa_s->sme.bss_max_idle_period = 0;
}
#endif /* CONFIG_SME */
}
#endif /* CONFIG_WNM */
void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
{
#ifdef CONFIG_WNM
eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
#endif /* CONFIG_WNM */
}
static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
size_t len)
{
int res;
wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
if (res) {
wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
}
return res;
}
static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
const u8 *ies, size_t ies_len)
{
struct ieee802_11_elems elems;
if (ies == NULL)
return;
if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
return;
if (elems.qos_map_set) {
wpas_qos_map_set(wpa_s, elems.qos_map_set,
elems.qos_map_set_len);
}
}
static void wpa_supplicant_set_4addr_mode(struct wpa_supplicant *wpa_s)
{
if (wpa_s->enabled_4addr_mode) {
wpa_printf(MSG_DEBUG, "4addr mode already set");
return;
}
if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) {
wpa_msg(wpa_s, MSG_ERROR, "Failed to set 4addr mode");
goto fail;
}
wpa_s->enabled_4addr_mode = 1;
wpa_msg(wpa_s, MSG_INFO, "Successfully set 4addr mode");
return;
fail:
wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
}
static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s,
const u8 *ies, size_t ies_len)
{
struct ieee802_11_elems elems;
struct multi_ap_params multi_ap;
u16 status;
wpa_s->multi_ap_ie = 0;
if (!ies ||
ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed ||
!elems.multi_ap)
return;
status = check_multi_ap_ie(elems.multi_ap + 4, elems.multi_ap_len - 4,
&multi_ap);
if (status != WLAN_STATUS_SUCCESS)
return;
wpa_s->multi_ap_backhaul = !!(multi_ap.capability &
MULTI_AP_BACKHAUL_BSS);
wpa_s->multi_ap_fronthaul = !!(multi_ap.capability &
MULTI_AP_FRONTHAUL_BSS);
wpa_s->multi_ap_ie = 1;
}
static void multi_ap_set_4addr_mode(struct wpa_supplicant *wpa_s)
{
if (!wpa_s->current_ssid ||
!wpa_s->current_ssid->multi_ap_backhaul_sta)
return;
if (!wpa_s->multi_ap_ie) {
wpa_printf(MSG_INFO,
"AP does not include valid Multi-AP element");
goto fail;
}
if (!wpa_s->multi_ap_backhaul) {
if (wpa_s->multi_ap_fronthaul &&
wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
wpa_printf(MSG_INFO,
"WPS active, accepting fronthaul-only BSS");
/* Don't set 4addr mode in this case, so just return */
return;
}
wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS");
goto fail;
}
wpa_supplicant_set_4addr_mode(wpa_s);
return;
fail:
wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
}
#ifdef CONFIG_FST
static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
const u8 *ie, size_t ie_len)
{
struct mb_ies_info mb_ies;
if (!ie || !ie_len || !wpa_s->fst)
return -ENOENT;
os_memset(&mb_ies, 0, sizeof(mb_ies));
while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
size_t len;
len = 2 + ie[1];
if (len > ie_len) {
wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
ie, ie_len);
break;
}
if (ie[0] == WLAN_EID_MULTI_BAND) {
wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
(unsigned int) len);
mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
mb_ies.nof_ies++;
}
ie_len -= len;
ie += len;
}
if (mb_ies.nof_ies > 0) {
wpabuf_free(wpa_s->received_mb_ies);
wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
return 0;
}
return -ENOENT;
}
#endif /* CONFIG_FST */
static int wpa_supplicant_use_own_rsne_params(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
int sel;
const u8 *p;
int l, len;
bool found = false;
struct wpa_ie_data ie;
struct wpa_ssid *ssid = wpa_s->current_ssid;
struct wpa_bss *bss = wpa_s->current_bss;
int pmf;
if (!ssid)
return 0;
p = data->assoc_info.req_ies;
l = data->assoc_info.req_ies_len;
while (p && l >= 2) {
len = p[1] + 2;
if (len > l) {
wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
p, l);
break;
}
if (((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
(os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
(p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
(os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
(p[0] == WLAN_EID_RSN && p[1] >= 2))) {
found = true;
break;
}
l -= len;
p += len;
}
if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0) {
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_OCV, 0);
return 0;
}
wpa_hexdump(MSG_DEBUG,
"WPA: Update cipher suite selection based on IEs in driver-generated WPA/RSNE in AssocReq",
p, l);
/* Update proto from (Re)Association Request frame info */
wpa_s->wpa_proto = ie.proto;
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, wpa_s->wpa_proto);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
!!(wpa_s->wpa_proto &
(WPA_PROTO_RSN | WPA_PROTO_OSEN)));
/* Update AKMP suite from (Re)Association Request frame info */
sel = ie.key_mgmt;
if (ssid->key_mgmt)
sel &= ssid->key_mgmt;
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: AP key_mgmt 0x%x network key_mgmt 0x%x; available key_mgmt 0x%x",
ie.key_mgmt, ssid->key_mgmt, sel);
if (ie.key_mgmt && !sel) {
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_AKMP_NOT_VALID);
return -1;
}
#ifdef CONFIG_OCV
if (((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) ||
(wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_OCV)) && ssid->ocv)
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_OCV,
!!(ie.capabilities & WPA_CAPABILITY_OCVC));
#endif /* CONFIG_OCV */
/*
* Update PMK in wpa_sm and the driver if roamed to WPA/WPA2 PSK from a
* different AKM.
*/
if (wpa_s->key_mgmt != ie.key_mgmt &&
wpa_key_mgmt_wpa_psk_no_sae(ie.key_mgmt)) {
if (!ssid->psk_set) {
wpa_dbg(wpa_s, MSG_INFO,
"No PSK available for association");
wpas_auth_failed(wpa_s, "NO_PSK_AVAILABLE", NULL);
return -1;
}
wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN, NULL, NULL);
if (wpa_s->conf->key_mgmt_offload &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD) &&
wpa_drv_set_key(wpa_s, -1, 0, NULL, 0, 0, NULL, 0,
ssid->psk, PMK_LEN, KEY_FLAG_PMK))
wpa_dbg(wpa_s, MSG_ERROR,
"WPA: Cannot set PMK for key management offload");
}
wpa_s->key_mgmt = ie.key_mgmt;
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT %s and proto %d",
wpa_key_mgmt_txt(wpa_s->key_mgmt, wpa_s->wpa_proto),
wpa_s->wpa_proto);
/* Update pairwise cipher from (Re)Association Request frame info */
sel = ie.pairwise_cipher;
if (ssid->pairwise_cipher)
sel &= ssid->pairwise_cipher;
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: AP pairwise cipher 0x%x network pairwise cipher 0x%x; available pairwise cipher 0x%x",
ie.pairwise_cipher, ssid->pairwise_cipher, sel);
if (ie.pairwise_cipher && !sel) {
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID);
return -1;
}
wpa_s->pairwise_cipher = ie.pairwise_cipher;
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
wpa_s->pairwise_cipher);
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s",
wpa_cipher_txt(wpa_s->pairwise_cipher));
/* Update other parameters based on AP's WPA IE/RSNE, if available */
if (!bss) {
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: current_bss == NULL - skip AP IE check");
return 0;
}
/* Update GTK and IGTK from AP's RSNE */
found = false;
if (wpa_s->wpa_proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) {
const u8 *bss_rsn;
bss_rsn = wpa_bss_get_rsne(wpa_s, bss, ssid,
wpa_s->valid_links);
if (bss_rsn) {
p = bss_rsn;
len = 2 + bss_rsn[1];
found = true;
}
} else if (wpa_s->wpa_proto & WPA_PROTO_WPA) {
const u8 *bss_wpa;
bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
if (bss_wpa) {
p = bss_wpa;
len = 2 + bss_wpa[1];
found = true;
}
}
if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0)
return 0;
pmf = wpas_get_ssid_pmf(wpa_s, ssid);
if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
pmf == MGMT_FRAME_PROTECTION_REQUIRED) {
/* AP does not support MFP, local configuration requires it */
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
return -1;
}
if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
pmf == NO_MGMT_FRAME_PROTECTION) {
/* AP requires MFP, local configuration disables it */
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
return -1;
}
/* Update PMF from local configuration now that MFP validation was done
* above */
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, pmf);
/* Update GTK from AP's RSNE */
sel = ie.group_cipher;
if (ssid->group_cipher)
sel &= ssid->group_cipher;
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: AP group cipher 0x%x network group cipher 0x%x; available group cipher 0x%x",
ie.group_cipher, ssid->group_cipher, sel);
if (ie.group_cipher && !sel) {
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_GROUP_CIPHER_NOT_VALID);
return -1;
}
wpa_s->group_cipher = ie.group_cipher;
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s",
wpa_cipher_txt(wpa_s->group_cipher));
/* Update IGTK from AP RSN IE */
sel = ie.mgmt_group_cipher;
if (ssid->group_mgmt_cipher)
sel &= ssid->group_mgmt_cipher;
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: AP mgmt_group_cipher 0x%x network mgmt_group_cipher 0x%x; available mgmt_group_cipher 0x%x",
ie.mgmt_group_cipher, ssid->group_mgmt_cipher, sel);
if (pmf == NO_MGMT_FRAME_PROTECTION ||
!(ie.capabilities & WPA_CAPABILITY_MFPC)) {
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: STA/AP is not MFP capable; AP RSNE caps 0x%x",
ie.capabilities);
ie.mgmt_group_cipher = 0;
}
if (ie.mgmt_group_cipher && !sel) {
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_CIPHER_SUITE_REJECTED);
return -1;
}
wpa_s->mgmt_group_cipher = ie.mgmt_group_cipher;
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
wpa_s->mgmt_group_cipher);
if (wpa_s->mgmt_group_cipher)
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher %s",
wpa_cipher_txt(wpa_s->mgmt_group_cipher));
else
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
return 0;
}
static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
int l, len, found = 0, found_x = 0, wpa_found, rsn_found;
const u8 *p, *ie;
u8 bssid[ETH_ALEN];
bool bssid_known;
enum wpa_rsn_override rsn_override;
wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
wpa_s->ssid_verified = false;
wpa_s->bigtk_set = false;
#ifdef CONFIG_SAE
#ifdef CONFIG_SME
/* SAE H2E binds the SSID into PT and that verifies the SSID
* implicitly. */
if (wpa_s->sme.sae.state == SAE_ACCEPTED && wpa_s->sme.sae.h2e)
wpa_s->ssid_verified = true;
#endif /* CONFIG_SME */
#endif /* CONFIG_SAE */
bssid_known = wpa_drv_get_bssid(wpa_s, bssid) == 0;
if (data->assoc_info.req_ies)
wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
data->assoc_info.req_ies_len);
if (data->assoc_info.resp_ies) {
wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len);
#ifdef CONFIG_TDLS
wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len);
#endif /* CONFIG_TDLS */
#ifdef CONFIG_WNM
wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len);
#endif /* CONFIG_WNM */
interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len);
if (wpa_s->hw_capab == CAPAB_VHT &&
get_ie(data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP))
wpa_s->ieee80211ac = 1;
multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len);
}
if (data->assoc_info.beacon_ies)
wpa_hexdump(MSG_DEBUG, "beacon_ies",
data->assoc_info.beacon_ies,
data->assoc_info.beacon_ies_len);
if (data->assoc_info.freq)
wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
data->assoc_info.freq);
wpa_s->connection_set = 0;
if (data->assoc_info.req_ies && data->assoc_info.resp_ies) {
struct ieee802_11_elems req_elems, resp_elems;
if (ieee802_11_parse_elems(data->assoc_info.req_ies,
data->assoc_info.req_ies_len,
&req_elems, 0) != ParseFailed &&
ieee802_11_parse_elems(data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len,
&resp_elems, 0) != ParseFailed) {
wpa_s->connection_set = 1;
wpa_s->connection_ht = req_elems.ht_capabilities &&
resp_elems.ht_capabilities;
/* Do not include subset of VHT on 2.4 GHz vendor
* extension in consideration for reporting VHT
* association. */
wpa_s->connection_vht = req_elems.vht_capabilities &&
resp_elems.vht_capabilities &&
(!data->assoc_info.freq ||
wpas_freq_to_band(data->assoc_info.freq) !=
BAND_2_4_GHZ);
wpa_s->connection_he = req_elems.he_capabilities &&
resp_elems.he_capabilities;
wpa_s->connection_eht = req_elems.eht_capabilities &&
resp_elems.eht_capabilities;
if (req_elems.rrm_enabled)
wpa_s->rrm.rrm_used = 1;
}
}
p = data->assoc_info.req_ies;
l = data->assoc_info.req_ies_len;
/* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
while (p && l >= 2) {
len = p[1] + 2;
if (len > l) {
wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
p, l);
break;
}
if (!found &&
((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
(os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
(p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
(os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
(p[0] == WLAN_EID_RSN && p[1] >= 2))) {
if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
break;
found = 1;
wpa_find_assoc_pmkid(wpa_s,
data->assoc_info.authorized);
}
if (!found_x && p[0] == WLAN_EID_RSNX) {
if (wpa_sm_set_assoc_rsnxe(wpa_s->wpa, p, len))
break;
found_x = 1;
}
l -= len;
p += len;
}
if (!found && data->assoc_info.req_ies)
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
if (!found_x && data->assoc_info.req_ies)
wpa_sm_set_assoc_rsnxe(wpa_s->wpa, NULL, 0);
rsn_override = RSN_OVERRIDE_NOT_USED;
ie = get_vendor_ie(data->assoc_info.req_ies,
data->assoc_info.req_ies_len,
RSN_SELECTION_IE_VENDOR_TYPE);
if (ie && ie[1] >= 4 + 1) {
switch (ie[2 + 4]) {
case RSN_SELECTION_RSNE:
rsn_override = RSN_OVERRIDE_RSNE;
break;
case RSN_SELECTION_RSNE_OVERRIDE:
rsn_override = RSN_OVERRIDE_RSNE_OVERRIDE;
break;
case RSN_SELECTION_RSNE_OVERRIDE_2:
rsn_override = RSN_OVERRIDE_RSNE_OVERRIDE_2;
break;
}
}
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_OVERRIDE, rsn_override);
#ifdef CONFIG_FILS
#ifdef CONFIG_SME
if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) {
if (!data->assoc_info.resp_frame ||
fils_process_assoc_resp(wpa_s->wpa,
data->assoc_info.resp_frame,
data->assoc_info.resp_frame_len) <
0) {
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_UNSPECIFIED);
return -1;
}
/* FILS use of an AEAD cipher include the SSID element in
* (Re)Association Request frame in the AAD and since the AP
* accepted that, the SSID was verified. */
wpa_s->ssid_verified = true;
}
#endif /* CONFIG_SME */
/* Additional processing for FILS when SME is in driver */
if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
#endif /* CONFIG_FILS */
#ifdef CONFIG_OWE
if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
!(wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_OWE_OFFLOAD_STA) &&
(!bssid_known ||
owe_process_assoc_resp(wpa_s->wpa,
wpa_s->valid_links ?
wpa_s->ap_mld_addr : bssid,
data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len) < 0)) {
wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
return -1;
}
#endif /* CONFIG_OWE */
#ifdef CONFIG_DPP2
wpa_sm_set_dpp_z(wpa_s->wpa, NULL);
if (DPP_VERSION > 1 && wpa_s->key_mgmt == WPA_KEY_MGMT_DPP &&
wpa_s->dpp_pfs) {
struct ieee802_11_elems elems;
if (ieee802_11_parse_elems(data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len,
&elems, 0) == ParseFailed ||
!elems.owe_dh)
goto no_pfs;
if (dpp_pfs_process(wpa_s->dpp_pfs, elems.owe_dh,
elems.owe_dh_len) < 0) {
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_UNSPECIFIED);
return -1;
}
wpa_sm_set_dpp_z(wpa_s->wpa, wpa_s->dpp_pfs->secret);
}
no_pfs:
#endif /* CONFIG_DPP2 */
#ifdef CONFIG_IEEE80211R
#ifdef CONFIG_SME
if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
if (!bssid_known ||
wpa_ft_validate_reassoc_resp(wpa_s->wpa,
data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len,
bssid) < 0) {
wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
"Reassociation Response failed");
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_INVALID_IE);
return -1;
}
/* SSID is included in PMK-R0 derivation, so it is verified
* implicitly. */
wpa_s->ssid_verified = true;
}
p = data->assoc_info.resp_ies;
l = data->assoc_info.resp_ies_len;
#ifdef CONFIG_WPS_STRICT
if (p && wpa_s->current_ssid &&
wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
struct wpabuf *wps;
wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
if (wps == NULL) {
wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
"include WPS IE in (Re)Association Response");
return -1;
}
if (wps_validate_assoc_resp(wps) < 0) {
wpabuf_free(wps);
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_INVALID_IE);
return -1;
}
wpabuf_free(wps);
}
#endif /* CONFIG_WPS_STRICT */
/* Go through the IEs and make a copy of the MDIE, if present. */
while (p && l >= 2) {
len = p[1] + 2;
if (len > l) {
wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
p, l);
break;
}
if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
p[1] >= MOBILITY_DOMAIN_ID_LEN) {
wpa_s->sme.ft_used = 1;
os_memcpy(wpa_s->sme.mobility_domain, p + 2,
MOBILITY_DOMAIN_ID_LEN);
break;
}
l -= len;
p += len;
}
#endif /* CONFIG_SME */
/* Process FT when SME is in the driver */
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
wpa_ft_is_completed(wpa_s->wpa)) {
if (!bssid_known ||
wpa_ft_validate_reassoc_resp(wpa_s->wpa,
data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len,
bssid) < 0) {
wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
"Reassociation Response failed");
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_INVALID_IE);
return -1;
}
wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
/* SSID is included in PMK-R0 derivation, so it is verified
* implicitly. */
wpa_s->ssid_verified = true;
}
wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len);
#endif /* CONFIG_IEEE80211R */
#ifndef CONFIG_NO_ROBUST_AV
if (bssid_known)
wpas_handle_assoc_resp_mscs(wpa_s, bssid,
data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len);
#endif /* CONFIG_NO_ROBUST_AV */
/* WPA/RSN IE from Beacon/ProbeResp */
p = data->assoc_info.beacon_ies;
l = data->assoc_info.beacon_ies_len;
/* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
*/
wpa_found = rsn_found = 0;
while (p && l >= 2) {
len = p[1] + 2;
if (len > l) {
wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
p, l);
break;
}
if (!wpa_found &&
p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
wpa_found = 1;
wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
}
if (!rsn_found &&
p[0] == WLAN_EID_RSN && p[1] >= 2) {
rsn_found = 1;
wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
}
if (wpas_rsn_overriding(wpa_s) &&
p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
WPA_GET_BE32(&p[2]) == RSNE_OVERRIDE_2_IE_VENDOR_TYPE) {
rsn_found = 1;
wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
}
if (!rsn_found &&
wpas_rsn_overriding(wpa_s) &&
p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
WPA_GET_BE32(&p[2]) == RSNE_OVERRIDE_IE_VENDOR_TYPE) {
rsn_found = 1;
wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
}
if (p[0] == WLAN_EID_RSNX && p[1] >= 1)
wpa_sm_set_ap_rsnxe(wpa_s->wpa, p, len);
if (wpas_rsn_overriding(wpa_s) &&
p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
WPA_GET_BE32(&p[2]) == RSNXE_OVERRIDE_IE_VENDOR_TYPE)
wpa_sm_set_ap_rsnxe(wpa_s->wpa, p, len);
l -= len;
p += len;
}
if (!wpa_found && data->assoc_info.beacon_ies)
wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
if (!rsn_found && data->assoc_info.beacon_ies) {
wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
wpa_sm_set_ap_rsnxe(wpa_s->wpa, NULL, 0);
}
if (wpa_found || rsn_found)
wpa_s->ap_ies_from_associnfo = 1;
if (wpa_s->assoc_freq && data->assoc_info.freq) {
struct wpa_bss *bss;
unsigned int freq = 0;
if (bssid_known) {
bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
if (bss)
freq = bss->freq;
}
if (freq != data->assoc_info.freq) {
wpa_printf(MSG_DEBUG,
"Operating frequency changed from %u to %u MHz",
wpa_s->assoc_freq, data->assoc_info.freq);
wpa_supplicant_update_scan_results(wpa_s, bssid);
}
}
wpa_s->assoc_freq = data->assoc_info.freq;
#ifndef CONFIG_NO_ROBUST_AV
wpas_handle_assoc_resp_qos_mgmt(wpa_s, data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len);
#endif /* CONFIG_NO_ROBUST_AV */
return 0;
}
static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
{
const u8 *bss_wpa = NULL, *bss_rsn = NULL, *bss_rsnx = NULL;
if (!wpa_s->current_bss || !wpa_s->current_ssid)
return -1;
if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
return 0;
bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
WPA_IE_VENDOR_TYPE);
bss_rsn = wpa_bss_get_rsne(wpa_s, wpa_s->current_bss, NULL,
wpa_s->valid_links);
bss_rsnx = wpa_bss_get_rsnxe(wpa_s, wpa_s->current_bss, NULL,
wpa_s->valid_links);
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) ||
wpa_sm_set_ap_rsnxe(wpa_s->wpa, bss_rsnx,
bss_rsnx ? 2 + bss_rsnx[1] : 0))
return -1;
return 0;
}
static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
#ifdef CONFIG_FST
struct assoc_info *ai = data ? &data->assoc_info : NULL;
struct wpa_bss *bss = wpa_s->current_bss;
const u8 *ieprb, *iebcn;
wpabuf_free(wpa_s->received_mb_ies);
wpa_s->received_mb_ies = NULL;
if (ai &&
!wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
wpa_printf(MSG_DEBUG,
"FST: MB IEs updated from Association Response frame");
return;
}
if (ai &&
!wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
wpa_printf(MSG_DEBUG,
"FST: MB IEs updated from association event Beacon IEs");
return;
}
if (!bss)
return;
ieprb = wpa_bss_ie_ptr(bss);
iebcn = ieprb + bss->ie_len;
if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
#endif /* CONFIG_FST */
}
static unsigned int wpas_ml_parse_assoc(struct wpa_supplicant *wpa_s,
struct ieee802_11_elems *elems,
struct ml_sta_link_info *ml_info)
{
struct wpabuf *mlbuf;
struct ieee80211_eht_ml *ml;
size_t ml_len;
struct eht_ml_basic_common_info *common_info;
const u8 *pos;
u16 eml_capa = 0, mld_capa = 0;
const u16 control =
host_to_le16(MULTI_LINK_CONTROL_TYPE_BASIC |
BASIC_MULTI_LINK_CTRL_PRES_LINK_ID |
BASIC_MULTI_LINK_CTRL_PRES_BSS_PARAM_CH_COUNT);
u8 expected_common_info_len = 9;
unsigned int i = 0;
u16 ml_control;
if (!wpa_s->valid_links || !elems->basic_mle || !elems->basic_mle_len)
return 0;
mlbuf = ieee802_11_defrag(elems->basic_mle, elems->basic_mle_len, true);
if (!mlbuf)
return 0;
ml = (struct ieee80211_eht_ml *) wpabuf_head(mlbuf);
ml_len = wpabuf_len(mlbuf);
if (ml_len < sizeof(*ml))
goto out;
os_memset(ml_info, 0, sizeof(*ml_info) * MAX_NUM_MLD_LINKS);
ml_control = le_to_host16(ml->ml_control);
if ((ml_control & control) != control) {
wpa_printf(MSG_DEBUG, "MLD: Invalid presence BM=0x%x",
ml_control);
goto out;
}
if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_EML_CAPA) {
wpa_printf(MSG_DEBUG, "MLD: EML capabilities included");
expected_common_info_len += 2;
}
if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MLD_CAPA) {
wpa_printf(MSG_DEBUG, "MLD: MLD capabilities included");
expected_common_info_len += 2;
}
if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MSD_INFO) {
wpa_printf(MSG_DEBUG,
"MLD: Unexpected: medium sync delay info present");
expected_common_info_len += 2;
}
if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_AP_MLD_ID) {
wpa_printf(MSG_DEBUG,
"MLD: Unexpected: MLD ID present");
expected_common_info_len++;
}
if (sizeof(*ml) + expected_common_info_len > ml_len) {
wpa_printf(MSG_DEBUG,
"MLD: Not enough bytes for common info. ml_len=%zu",
ml_len);
goto out;
}
common_info = (struct eht_ml_basic_common_info *) ml->variable;
if (common_info->len != expected_common_info_len) {
wpa_printf(MSG_DEBUG,
"MLD: Invalid common info len=%u. expected=%u",
common_info->len, expected_common_info_len);
goto out;
}
wpa_printf(MSG_DEBUG, "MLD: address: " MACSTR,
MAC2STR(common_info->mld_addr));
if (!ether_addr_equal(wpa_s->ap_mld_addr, common_info->mld_addr)) {
wpa_printf(MSG_DEBUG, "MLD: Mismatching MLD address (expected "
MACSTR ")", MAC2STR(wpa_s->ap_mld_addr));
goto out;
}
pos = common_info->variable;
/* Store the information for the association link */
ml_info[i].link_id = *pos;
pos++;
/* Skip the BSS Parameters Change Count */
pos++;
/* Skip the Medium Synchronization Delay Information if present */
if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MSD_INFO)
pos += 2;
if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_EML_CAPA) {
eml_capa = WPA_GET_LE16(pos);
pos += 2;
}
if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MLD_CAPA) {
mld_capa = WPA_GET_LE16(pos);
pos += 2;
}
wpa_printf(MSG_DEBUG,
"MLD: link_id=%u, eml=0x%x, mld=0x%x",
ml_info[i].link_id, eml_capa, mld_capa);
i++;
pos = ((u8 *) common_info) + common_info->len;
ml_len -= sizeof(*ml) + common_info->len;
while (ml_len > 2 && i < MAX_NUM_MLD_LINKS) {
u8 sub_elem_len = pos[1];
u8 sta_info_len;
u8 nstr_bitmap_len = 0;
u16 ctrl;
const u8 *end;
wpa_printf(MSG_DEBUG, "MLD: Subelement len=%u", sub_elem_len);
if (sub_elem_len > ml_len - 2) {
wpa_printf(MSG_DEBUG,
"MLD: Invalid link info len: %u > %zu",
2 + sub_elem_len, ml_len);
goto out;
}
switch (*pos) {
case EHT_ML_SUB_ELEM_PER_STA_PROFILE:
break;
case EHT_ML_SUB_ELEM_FRAGMENT:
case EHT_ML_SUB_ELEM_VENDOR:
wpa_printf(MSG_DEBUG,
"MLD: Skip subelement id=%u, len=%u",
*pos, sub_elem_len);
pos += 2 + sub_elem_len;
ml_len -= 2 + sub_elem_len;
continue;
default:
wpa_printf(MSG_DEBUG, "MLD: Unknown subelement ID=%u",
*pos);
goto out;
}
end = pos + 2 + sub_elem_len;
/* Skip the subelement ID and the length */
pos += 2;
ml_len -= 2;
if (end - pos < 2)
goto out;
/* Get the station control field */
ctrl = WPA_GET_LE16(pos);
pos += 2;
ml_len -= 2;
if (!(ctrl & EHT_PER_STA_CTRL_COMPLETE_PROFILE_MSK)) {
wpa_printf(MSG_DEBUG,
"MLD: Per STA complete profile expected");
goto out;
}
if (!(ctrl & EHT_PER_STA_CTRL_MAC_ADDR_PRESENT_MSK)) {
wpa_printf(MSG_DEBUG,
"MLD: Per STA MAC address not present");
goto out;
}
if (!(ctrl & EHT_PER_STA_CTRL_TSF_OFFSET_PRESENT_MSK)) {
wpa_printf(MSG_DEBUG,
"MLD: Per STA TSF offset not present");
goto out;
}
if (!(ctrl & EHT_PER_STA_CTRL_BEACON_INTERVAL_PRESENT_MSK)) {
wpa_printf(MSG_DEBUG,
"MLD: Beacon interval not present");
goto out;
}
if (!(ctrl & EHT_PER_STA_CTRL_DTIM_INFO_PRESENT_MSK)) {
wpa_printf(MSG_DEBUG,
"MLD: DTIM information not present");
goto out;
}
if (ctrl & EHT_PER_STA_CTRL_NSTR_LINK_PAIR_PRESENT_MSK) {
if (ctrl & EHT_PER_STA_CTRL_NSTR_BM_SIZE_MSK)
nstr_bitmap_len = 2;
else
nstr_bitmap_len = 1;
}
if (!(ctrl & EHT_PER_STA_CTRL_BSS_PARAM_CNT_PRESENT_MSK)) {
wpa_printf(MSG_DEBUG,
"MLD: BSS params change count not present");
goto out;
}
sta_info_len = 1 + ETH_ALEN + 8 + 2 + 2 + 1 + nstr_bitmap_len;
if (sta_info_len > ml_len || sta_info_len > end - pos ||
sta_info_len + 2 > sub_elem_len ||
sta_info_len != *pos) {
wpa_printf(MSG_DEBUG,
"MLD: Invalid STA info len=%u, len=%u",
sta_info_len, *pos);
goto out;
}
/* Get the link address */
wpa_printf(MSG_DEBUG,
"MLD: link addr: " MACSTR " nstr BM len=%u",
MAC2STR(pos + 1), nstr_bitmap_len);
ml_info[i].link_id = ctrl & EHT_PER_STA_CTRL_LINK_ID_MSK;
os_memcpy(ml_info[i].bssid, pos + 1, ETH_ALEN);
pos += sta_info_len;
ml_len -= sta_info_len;
wpa_printf(MSG_DEBUG, "MLD: sub_elem_len=%u, sta_info_len=%u",
sub_elem_len, sta_info_len);
sub_elem_len -= sta_info_len + 2;
if (sub_elem_len < 4) {
wpa_printf(MSG_DEBUG, "MLD: Per STA profile too short");
goto out;
}
wpa_hexdump(MSG_MSGDUMP, "MLD: STA profile", pos, sub_elem_len);
ml_info[i].status = WPA_GET_LE16(pos + 2);
pos += sub_elem_len;
ml_len -= sub_elem_len;
i++;
}
wpabuf_free(mlbuf);
return i;
out:
wpabuf_free(mlbuf);
return 0;
}
static int wpa_drv_get_mlo_info(struct wpa_supplicant *wpa_s)
{
struct driver_sta_mlo_info mlo;
int i;
os_memset(&mlo, 0, sizeof(mlo));
if (wpas_drv_get_sta_mlo_info(wpa_s, &mlo)) {
wpa_dbg(wpa_s, MSG_ERROR, "Failed to get MLO link info");
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
return -1;
}
if (wpa_s->valid_links == mlo.valid_links) {
bool match = true;
if (!mlo.valid_links)
return 0;
for_each_link(mlo.valid_links, i) {
if (!ether_addr_equal(wpa_s->links[i].addr,
mlo.links[i].addr) ||
!ether_addr_equal(wpa_s->links[i].bssid,
mlo.links[i].bssid)) {
match = false;
break;
}
}
if (match && wpa_s->mlo_assoc_link_id == mlo.assoc_link_id &&
ether_addr_equal(wpa_s->ap_mld_addr, mlo.ap_mld_addr))
return 0;
}
wpa_s->valid_links = mlo.valid_links;
wpa_s->mlo_assoc_link_id = mlo.assoc_link_id;
os_memcpy(wpa_s->ap_mld_addr, mlo.ap_mld_addr, ETH_ALEN);
for_each_link(wpa_s->valid_links, i) {
os_memcpy(wpa_s->links[i].addr, mlo.links[i].addr, ETH_ALEN);
os_memcpy(wpa_s->links[i].bssid, mlo.links[i].bssid, ETH_ALEN);
wpa_s->links[i].freq = mlo.links[i].freq;
wpa_supplicant_update_link_bss(wpa_s, i, mlo.links[i].bssid);
}
return 0;
}
static int wpa_sm_set_ml_info(struct wpa_supplicant *wpa_s)
{
struct driver_sta_mlo_info drv_mlo;
struct wpa_sm_mlo wpa_mlo;
int i;
os_memset(&drv_mlo, 0, sizeof(drv_mlo));
if (wpas_drv_get_sta_mlo_info(wpa_s, &drv_mlo)) {
wpa_dbg(wpa_s, MSG_INFO, "Failed to get MLO link info");
return -1;
}
os_memset(&wpa_mlo, 0, sizeof(wpa_mlo));
if (!drv_mlo.valid_links)
goto out;
os_memcpy(wpa_mlo.ap_mld_addr, drv_mlo.ap_mld_addr, ETH_ALEN);
wpa_mlo.assoc_link_id = drv_mlo.assoc_link_id;
wpa_mlo.valid_links = drv_mlo.valid_links;
wpa_mlo.req_links = drv_mlo.req_links;
for_each_link(drv_mlo.req_links, i) {
struct wpa_bss *bss;
const u8 *rsne, *rsnxe, *rsnoe, *rsno2e, *rsnxoe;
bss = wpa_supplicant_get_new_bss(wpa_s, drv_mlo.links[i].bssid);
if (!bss) {
wpa_dbg(wpa_s, MSG_INFO,
"Failed to get MLO link %d BSS", i);
return -1;
}
rsne = wpa_bss_get_ie(bss, WLAN_EID_RSN);
rsnxe = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
rsnoe = wpa_bss_get_vendor_ie(bss,
RSNE_OVERRIDE_IE_VENDOR_TYPE);
rsno2e = wpa_bss_get_vendor_ie(bss,
RSNE_OVERRIDE_2_IE_VENDOR_TYPE);
rsnxoe = wpa_bss_get_vendor_ie(bss,
RSNXE_OVERRIDE_IE_VENDOR_TYPE);
wpa_mlo.links[i].ap_rsne = rsne ? (u8 *) rsne : NULL;
wpa_mlo.links[i].ap_rsne_len = rsne ? 2 + rsne[1] : 0;
wpa_mlo.links[i].ap_rsnxe = rsnxe ? (u8 *) rsnxe : NULL;
wpa_mlo.links[i].ap_rsnxe_len = rsnxe ? 2 + rsnxe[1] : 0;
wpa_mlo.links[i].ap_rsnoe = rsnoe ? (u8 *) rsnoe : NULL;
wpa_mlo.links[i].ap_rsnoe_len = rsnoe ? 2 + rsnoe[1] : 0;
wpa_mlo.links[i].ap_rsno2e = rsno2e ? (u8 *) rsno2e : NULL;
wpa_mlo.links[i].ap_rsno2e_len = rsno2e ? 2 + rsno2e[1] : 0;
wpa_mlo.links[i].ap_rsnxoe = rsnxoe ? (u8 *) rsnxoe : NULL;
wpa_mlo.links[i].ap_rsnxoe_len = rsnxoe ? 2 + rsnxoe[1] : 0;
os_memcpy(wpa_mlo.links[i].bssid, drv_mlo.links[i].bssid,
ETH_ALEN);
os_memcpy(wpa_mlo.links[i].addr, drv_mlo.links[i].addr,
ETH_ALEN);
}
out:
return wpa_sm_set_mlo_params(wpa_s->wpa, &wpa_mlo);
}
static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
u8 bssid[ETH_ALEN];
int ft_completed, already_authorized;
int new_bss = 0;
#if defined(CONFIG_FILS) || defined(CONFIG_MBO)
struct wpa_bss *bss;
#endif /* CONFIG_FILS || CONFIG_MBO */
#ifdef CONFIG_AP
if (wpa_s->ap_iface) {
if (!data)
return;
hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
data->assoc_info.addr,
data->assoc_info.req_ies,
data->assoc_info.req_ies_len, NULL, 0,
NULL, data->assoc_info.reassoc);
return;
}
#endif /* CONFIG_AP */
eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
wpa_s->own_reconnect_req = 0;
ft_completed = wpa_ft_is_completed(wpa_s->wpa);
if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
return;
}
if (wpa_drv_get_mlo_info(wpa_s) < 0) {
wpa_dbg(wpa_s, MSG_ERROR, "Failed to get MLO connection info");
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
return;
}
if (ft_completed &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION)) {
wpa_msg(wpa_s, MSG_INFO, "Attempt to roam to " MACSTR,
MAC2STR(bssid));
if (!wpa_supplicant_update_current_bss(wpa_s, bssid)) {
wpa_printf(MSG_ERROR,
"Can't find target AP's information!");
return;
}
wpa_supplicant_assoc_update_ie(wpa_s);
}
if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
return;
/*
* FILS authentication can share the same mechanism to mark the
* connection fully authenticated, so set ft_completed also based on
* FILS result.
*/
if (!ft_completed)
ft_completed = wpa_fils_is_completed(wpa_s->wpa);
wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
if (!ether_addr_equal(bssid, wpa_s->bssid)) {
if (os_reltime_initialized(&wpa_s->session_start)) {
os_reltime_age(&wpa_s->session_start,
&wpa_s->session_length);
wpa_s->session_start.sec = 0;
wpa_s->session_start.usec = 0;
wpas_notify_session_length(wpa_s);
} else {
wpas_notify_auth_changed(wpa_s);
os_get_reltime(&wpa_s->session_start);
}
wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
MACSTR, MAC2STR(bssid));
new_bss = 1;
random_add_randomness(bssid, ETH_ALEN);
os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
wpas_notify_bssid_changed(wpa_s);
if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
wpa_clear_keys(wpa_s, bssid);
}
if (wpa_supplicant_select_config(wpa_s, data) < 0) {
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
return;
}
}
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
data && wpa_supplicant_use_own_rsne_params(wpa_s, data) < 0)
return;
multi_ap_set_4addr_mode(wpa_s);
if (wpa_s->conf->ap_scan == 1 &&
wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
wpa_msg(wpa_s, MSG_WARNING,
"WPA/RSN IEs not updated");
}
wpas_fst_update_mb_assoc(wpa_s, data);
#ifdef CONFIG_SME
/*
* Cache the current AP's BSSID (for non-MLO connection) or MLD address
* (for MLO connection) as the previous BSSID for subsequent
* reassociation requests handled by SME-in-wpa_supplicant.
*/
os_memcpy(wpa_s->sme.prev_bssid,
wpa_s->valid_links ? wpa_s->ap_mld_addr : bssid, ETH_ALEN);
wpa_s->sme.prev_bssid_set = 1;
wpa_s->sme.last_unprot_disconnect.sec = 0;
#endif /* CONFIG_SME */
wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
if (wpa_s->current_ssid) {
/* When using scanning (ap_scan=1), SIM PC/SC interface can be
* initialized before association, but for other modes,
* initialize PC/SC here, if the current configuration needs
* smartcard or SIM/USIM. */
wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
}
wpa_sm_notify_assoc(wpa_s->wpa, bssid);
if (wpa_sm_set_ml_info(wpa_s)) {
wpa_dbg(wpa_s, MSG_INFO,
"Failed to set MLO connection info to wpa_sm");
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
return;
}
if (wpa_s->l2)
l2_packet_notify_auth_start(wpa_s->l2);
already_authorized = data && data->assoc_info.authorized;
/*
* Set portEnabled first to false in order to get EAP state machine out
* of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
* state machine may transit to AUTHENTICATING state based on obsolete
* eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
* AUTHENTICATED without ever giving chance to EAP state machine to
* reset the state.
*/
if (!ft_completed && !already_authorized) {
eapol_sm_notify_portEnabled(wpa_s->eapol, false);
eapol_sm_notify_portValid(wpa_s->eapol, false);
}
if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
already_authorized || wpa_s->drv_authorized_port)
eapol_sm_notify_eap_success(wpa_s->eapol, false);
/* 802.1X::portControl = Auto */
eapol_sm_notify_portEnabled(wpa_s->eapol, true);
wpa_s->eapol_received = 0;
if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
(wpa_s->current_ssid &&
wpa_s->current_ssid->mode == WPAS_MODE_IBSS)) {
if (wpa_s->current_ssid &&
wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
(wpa_s->drv_flags &
WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
/*
* Set the key after having received joined-IBSS event
* from the driver.
*/
wpa_supplicant_set_wpa_none_key(wpa_s,
wpa_s->current_ssid);
}
wpa_supplicant_cancel_auth_timeout(wpa_s);
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
} else if (!ft_completed) {
/* Timeout for receiving the first EAPOL packet */
wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
}
wpa_supplicant_cancel_scan(wpa_s);
if (ft_completed) {
/*
* FT protocol completed - make sure EAPOL state machine ends
* up in authenticated.
*/
wpa_supplicant_cancel_auth_timeout(wpa_s);
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
eapol_sm_notify_portValid(wpa_s->eapol, true);
eapol_sm_notify_eap_success(wpa_s->eapol, true);
} else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) &&
wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
if (already_authorized) {
/*
* We are done; the driver will take care of RSN 4-way
* handshake.
*/
wpa_supplicant_cancel_auth_timeout(wpa_s);
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
eapol_sm_notify_portValid(wpa_s->eapol, true);
eapol_sm_notify_eap_success(wpa_s->eapol, true);
} else {
/* Update port, WPA_COMPLETED state from the
* EVENT_PORT_AUTHORIZED handler when the driver is done
* with the 4-way handshake.
*/
wpa_msg(wpa_s, MSG_DEBUG,
"ASSOC INFO: wait for driver port authorized indication");
}
} else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) &&
wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
/*
* The driver will take care of RSN 4-way handshake, so we need
* to allow EAPOL supplicant to complete its work without
* waiting for WPA supplicant.
*/
eapol_sm_notify_portValid(wpa_s->eapol, true);
}
wpa_s->last_eapol_matches_bssid = 0;
#ifdef CONFIG_TESTING_OPTIONS
if (wpa_s->rsne_override_eapol) {
wpa_printf(MSG_DEBUG,
"TESTING: RSNE EAPOL-Key msg 2/4 override");
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa,
wpabuf_head(wpa_s->rsne_override_eapol),
wpabuf_len(wpa_s->rsne_override_eapol));
}
if (wpa_s->rsnxe_override_eapol) {
wpa_printf(MSG_DEBUG,
"TESTING: RSNXE EAPOL-Key msg 2/4 override");
wpa_sm_set_assoc_rsnxe(wpa_s->wpa,
wpabuf_head(wpa_s->rsnxe_override_eapol),
wpabuf_len(wpa_s->rsnxe_override_eapol));
}
#endif /* CONFIG_TESTING_OPTIONS */
if (wpa_s->pending_eapol_rx) {
struct os_reltime now, age;
os_get_reltime(&now);
os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
if (age.sec == 0 && age.usec < 200000 &&
ether_addr_equal(wpa_s->pending_eapol_rx_src,
wpa_s->valid_links ? wpa_s->ap_mld_addr :
bssid)) {
wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
"frame that was received just before "
"association notification");
wpa_supplicant_rx_eapol(
wpa_s, wpa_s->pending_eapol_rx_src,
wpabuf_head(wpa_s->pending_eapol_rx),
wpabuf_len(wpa_s->pending_eapol_rx),
wpa_s->pending_eapol_encrypted);
}
wpabuf_free(wpa_s->pending_eapol_rx);
wpa_s->pending_eapol_rx = NULL;
}
#ifdef CONFIG_WEP
if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
wpa_s->current_ssid &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
/* Set static WEP keys again */
wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
}
#endif /* CONFIG_WEP */
#ifdef CONFIG_IBSS_RSN
if (wpa_s->current_ssid &&
wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
wpa_s->ibss_rsn == NULL) {
wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
if (!wpa_s->ibss_rsn) {
wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
wpa_supplicant_deauthenticate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
return;
}
ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
}
#endif /* CONFIG_IBSS_RSN */
wpas_wps_notify_assoc(wpa_s, bssid);
#ifndef CONFIG_NO_WMM_AC
if (data) {
wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
data->assoc_info.resp_ies_len,
&data->assoc_info.wmm_params);
if (wpa_s->reassoc_same_bss)
wmm_ac_restore_tspecs(wpa_s);
}
#endif /* CONFIG_NO_WMM_AC */
#if defined(CONFIG_FILS) || defined(CONFIG_MBO)
bss = wpa_bss_get_bssid(wpa_s, bssid);
#endif /* CONFIG_FILS || CONFIG_MBO */
#ifdef CONFIG_FILS
if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
if (fils_cache_id)
wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
}
#endif /* CONFIG_FILS */
#ifdef CONFIG_MBO
wpas_mbo_check_pmf(wpa_s, bss, wpa_s->current_ssid);
#endif /* CONFIG_MBO */
#ifdef CONFIG_DPP2
wpa_s->dpp_pfs_fallback = 0;
#endif /* CONFIG_DPP2 */
if (wpa_s->current_ssid && wpa_s->current_ssid->enable_4addr_mode)
wpa_supplicant_set_4addr_mode(wpa_s);
}
static int disconnect_reason_recoverable(u16 reason_code)
{
return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
}
static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
u16 reason_code,
int locally_generated)
{
const u8 *bssid;
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
/*
* At least Host AP driver and a Prism3 card seemed to be
* generating streams of disconnected events when configuring
* IBSS for WPA-None. Ignore them for now.
*/
return;
}
bssid = wpa_s->bssid;
if (is_zero_ether_addr(bssid))
bssid = wpa_s->pending_bssid;
if (!is_zero_ether_addr(bssid) ||
wpa_s->wpa_state >= WPA_AUTHENTICATING) {
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
" reason=%d%s",
MAC2STR(bssid), reason_code,
locally_generated ? " locally_generated=1" : "");
}
}
static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
int locally_generated)
{
if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
!wpa_s->new_connection ||
!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
wpa_key_mgmt_sae(wpa_s->key_mgmt))
return 0; /* Not in initial 4-way handshake with PSK */
/*
* It looks like connection was lost while trying to go through PSK
* 4-way handshake. Filter out known disconnection cases that are caused
* by something else than PSK mismatch to avoid confusing reports.
*/
if (locally_generated) {
if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
return 0;
}
return 1;
}
static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
u16 reason_code,
int locally_generated)
{
const u8 *bssid;
struct wpa_bss *fast_reconnect = NULL;
struct wpa_ssid *fast_reconnect_ssid = NULL;
struct wpa_bss *curr = NULL;
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
/*
* At least Host AP driver and a Prism3 card seemed to be
* generating streams of disconnected events when configuring
* IBSS for WPA-None. Ignore them for now.
*/
wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
"IBSS/WPA-None mode");
return;
}
if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
locally_generated)
/*
* Remove the inactive AP (which is probably out of range) from
* the BSS list after marking disassociation. In particular
* mac80211-based drivers use the
* WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
* locally generated disconnection events for cases where the
* AP does not reply anymore.
*/
curr = wpa_s->current_bss;
if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
"pre-shared key may be incorrect");
if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
return; /* P2P group removed */
wpas_auth_failed(wpa_s, "WRONG_KEY", wpa_s->pending_bssid);
wpas_notify_psk_mismatch(wpa_s);
#ifdef CONFIG_DPP2
wpas_dpp_send_conn_status_result(wpa_s,
DPP_STATUS_AUTH_FAILURE);
#endif /* CONFIG_DPP2 */
}
if (!wpa_s->disconnected &&
(!wpa_s->auto_reconnect_disabled ||
wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
wpas_wps_searching(wpa_s) ||
wpas_wps_reenable_networks_pending(wpa_s))) {
wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
"reconnect (wps=%d/%d wpa_state=%d)",
wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
wpas_wps_searching(wpa_s),
wpa_s->wpa_state);
if (wpa_s->wpa_state == WPA_COMPLETED &&
wpa_s->current_ssid &&
wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
(wpa_s->own_reconnect_req ||
(!locally_generated &&
disconnect_reason_recoverable(reason_code)))) {
/*
* It looks like the AP has dropped association with
* us, but could allow us to get back in. This is also
* triggered for cases where local reconnection request
* is used to force reassociation with the same BSS.
* Try to reconnect to the same BSS without a full scan
* to save time for some common cases.
*/
fast_reconnect = wpa_s->current_bss;
fast_reconnect_ssid = wpa_s->current_ssid;
} else if (wpa_s->wpa_state >= WPA_ASSOCIATING) {
wpa_supplicant_req_scan(wpa_s, 0, 100000);
} else {
wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
"immediate scan");
}
} else {
wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
"try to re-connect");
wpa_s->reassociate = 0;
wpa_s->disconnected = 1;
if (!wpa_s->pno)
wpa_supplicant_cancel_sched_scan(wpa_s);
}
bssid = wpa_s->bssid;
if (is_zero_ether_addr(bssid))
bssid = wpa_s->pending_bssid;
if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
wpas_connection_failed(wpa_s, bssid, NULL);
wpa_sm_notify_disassoc(wpa_s->wpa);
ptksa_cache_flush(wpa_s->ptksa, wpa_s->bssid, WPA_CIPHER_NONE);
if (locally_generated)
wpa_s->disconnect_reason = -reason_code;
else
wpa_s->disconnect_reason = reason_code;
wpas_notify_disconnect_reason(wpa_s);
if (wpa_supplicant_dynamic_keys(wpa_s)) {
wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
wpa_clear_keys(wpa_s, wpa_s->bssid);
}
wpa_supplicant_mark_disassoc(wpa_s);
if (curr)
wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
if (fast_reconnect &&
!wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
!disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
!disallowed_ssid(wpa_s, fast_reconnect->ssid,
fast_reconnect->ssid_len) &&
!wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
!wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect)) {
#ifndef CONFIG_NO_SCAN_PROCESSING
wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
if (wpa_supplicant_connect(wpa_s, fast_reconnect,
fast_reconnect_ssid) < 0) {
/* Recover through full scan */
wpa_supplicant_req_scan(wpa_s, 0, 100000);
}
#endif /* CONFIG_NO_SCAN_PROCESSING */
} else if (fast_reconnect) {
/*
* Could not reconnect to the same BSS due to network being
* disabled. Use a new scan to match the alternative behavior
* above, i.e., to continue automatic reconnection attempt in a
* way that enforces disabled network rules.
*/
wpa_supplicant_req_scan(wpa_s, 0, 100000);
}
}
#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
{
struct wpa_supplicant *wpa_s = eloop_ctx;
if (!wpa_s->pending_mic_error_report)
return;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
wpa_s->pending_mic_error_report = 0;
}
#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
static void
wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
int pairwise;
struct os_reltime t;
wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
pairwise = (data && data->michael_mic_failure.unicast);
os_get_reltime(&t);
if ((os_reltime_initialized(&wpa_s->last_michael_mic_error) &&
!os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
wpa_s->pending_mic_error_report) {
if (wpa_s->pending_mic_error_report) {
/*
* Send the pending MIC error report immediately since
* we are going to start countermeasures and AP better
* do the same.
*/
wpa_sm_key_request(wpa_s->wpa, 1,
wpa_s->pending_mic_error_pairwise);
}
/* Send the new MIC error report immediately since we are going
* to start countermeasures and AP better do the same.
*/
wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
/* initialize countermeasures */
wpa_s->countermeasures = 1;
wpa_bssid_ignore_add(wpa_s, wpa_s->bssid);
wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
/*
* Need to wait for completion of request frame. We do not get
* any callback for the message completion, so just wait a
* short while and hope for the best. */
os_sleep(0, 10000);
wpa_drv_set_countermeasures(wpa_s, 1);
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_MICHAEL_MIC_FAILURE);
eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
wpa_s, NULL);
eloop_register_timeout(60, 0,
wpa_supplicant_stop_countermeasures,
wpa_s, NULL);
/* TODO: mark the AP rejected for 60 second. STA is
* allowed to associate with another AP.. */
} else {
#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
if (wpa_s->mic_errors_seen) {
/*
* Reduce the effectiveness of Michael MIC error
* reports as a means for attacking against TKIP if
* more than one MIC failure is noticed with the same
* PTK. We delay the transmission of the reports by a
* random time between 0 and 60 seconds in order to
* force the attacker wait 60 seconds before getting
* the information on whether a frame resulted in a MIC
* failure.
*/
u8 rval[4];
int sec;
if (os_get_random(rval, sizeof(rval)) < 0)
sec = os_random() % 60;
else
sec = WPA_GET_BE32(rval) % 60;
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
"report %d seconds", sec);
wpa_s->pending_mic_error_report = 1;
wpa_s->pending_mic_error_pairwise = pairwise;
eloop_cancel_timeout(
wpa_supplicant_delayed_mic_error_report,
wpa_s, NULL);
eloop_register_timeout(
sec, os_random() % 1000000,
wpa_supplicant_delayed_mic_error_report,
wpa_s, NULL);
} else {
wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
}
#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
}
wpa_s->last_michael_mic_error = t;
wpa_s->mic_errors_seen++;
}
#ifdef CONFIG_TERMINATE_ONLASTIF
static int any_interfaces(struct wpa_supplicant *head)
{
struct wpa_supplicant *wpa_s;
for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
if (!wpa_s->interface_removed)
return 1;
return 0;
}
#endif /* CONFIG_TERMINATE_ONLASTIF */
static void
wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
return;
switch (data->interface_status.ievent) {
case EVENT_INTERFACE_ADDED:
if (!wpa_s->interface_removed)
break;
wpa_s->interface_removed = 0;
wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
if (wpa_supplicant_driver_init(wpa_s) < 0) {
wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
"driver after interface was added");
}
#ifdef CONFIG_P2P
if (!wpa_s->global->p2p &&
!wpa_s->global->p2p_disabled &&
!wpa_s->conf->p2p_disabled &&
(wpa_s->drv_flags &
WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
wpas_p2p_add_p2pdev_interface(
wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
wpa_printf(MSG_INFO,
"P2P: Failed to enable P2P Device interface");
/* Try to continue without. P2P will be disabled. */
}
#endif /* CONFIG_P2P */
break;
case EVENT_INTERFACE_REMOVED:
wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
wpa_s->interface_removed = 1;
wpa_supplicant_mark_disassoc(wpa_s);
wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
l2_packet_deinit(wpa_s->l2);
wpa_s->l2 = NULL;
#ifdef CONFIG_P2P
if (wpa_s->global->p2p &&
wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
(wpa_s->drv_flags &
WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Removing P2P Device interface");
wpa_supplicant_remove_iface(
wpa_s->global, wpa_s->global->p2p_init_wpa_s,
0);
wpa_s->global->p2p_init_wpa_s = NULL;
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_MATCH_IFACE
if (wpa_s->matched) {
wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
break;
}
#endif /* CONFIG_MATCH_IFACE */
#ifdef CONFIG_TERMINATE_ONLASTIF
/* check if last interface */
if (!any_interfaces(wpa_s->global->ifaces))
eloop_terminate();
#endif /* CONFIG_TERMINATE_ONLASTIF */
break;
}
}
#ifdef CONFIG_TDLS
static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
if (data == NULL)
return;
switch (data->tdls.oper) {
case TDLS_REQUEST_SETUP:
wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
if (wpa_tdls_is_external_setup(wpa_s->wpa))
wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
else
wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
break;
case TDLS_REQUEST_TEARDOWN:
if (wpa_tdls_is_external_setup(wpa_s->wpa))
wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
data->tdls.reason_code);
else
wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
data->tdls.peer);
break;
case TDLS_REQUEST_DISCOVER:
wpa_tdls_send_discovery_request(wpa_s->wpa,
data->tdls.peer);
break;
}
}
#endif /* CONFIG_TDLS */
#ifdef CONFIG_WNM
static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
if (data == NULL)
return;
switch (data->wnm.oper) {
case WNM_OPER_SLEEP:
wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
"(action=%d, intval=%d)",
data->wnm.sleep_action, data->wnm.sleep_intval);
ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
data->wnm.sleep_intval, NULL);
break;
}
}
#endif /* CONFIG_WNM */
#ifdef CONFIG_IEEE80211R
static void
wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
if (data == NULL)
return;
if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
data->ft_ies.ies_len,
data->ft_ies.ft_action,
data->ft_ies.target_ap,
data->ft_ies.ric_ies,
data->ft_ies.ric_ies_len) < 0) {
/* TODO: prevent MLME/driver from trying to associate? */
}
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IBSS_RSN
static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
struct wpa_ssid *ssid;
if (wpa_s->wpa_state < WPA_ASSOCIATED)
return;
if (data == NULL)
return;
ssid = wpa_s->current_ssid;
if (ssid == NULL)
return;
if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
return;
ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
}
static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
struct wpa_ssid *ssid = wpa_s->current_ssid;
if (ssid == NULL)
return;
/* check if the ssid is correctly configured as IBSS/RSN */
if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
return;
ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
data->rx_mgmt.frame_len);
}
#endif /* CONFIG_IBSS_RSN */
#ifdef CONFIG_IEEE80211R
static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
size_t len)
{
const u8 *sta_addr, *target_ap_addr;
u16 status;
wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
return; /* only SME case supported for now */
if (len < 1 + 2 * ETH_ALEN + 2)
return;
if (data[0] != 2)
return; /* Only FT Action Response is supported for now */
sta_addr = data + 1;
target_ap_addr = data + 1 + ETH_ALEN;
status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
MACSTR " TargetAP " MACSTR " status %u",
MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
if (!ether_addr_equal(sta_addr, wpa_s->own_addr)) {
wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
" in FT Action Response", MAC2STR(sta_addr));
return;
}
if (status) {
wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
"failure (status code %d)", status);
/* TODO: report error to FT code(?) */
return;
}
if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
len - (1 + 2 * ETH_ALEN + 2), 1,
target_ap_addr, NULL, 0) < 0)
return;
#ifdef CONFIG_SME
{
struct wpa_bss *bss;
bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
if (bss)
wpa_s->sme.freq = bss->freq;
wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
WLAN_AUTH_FT);
}
#endif /* CONFIG_SME */
}
#endif /* CONFIG_IEEE80211R */
static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
struct unprot_deauth *e)
{
wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
"dropped: " MACSTR " -> " MACSTR
" (reason code %u)",
MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
}
static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
struct unprot_disassoc *e)
{
wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
"dropped: " MACSTR " -> " MACSTR
" (reason code %u)",
MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
}
static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
u16 reason_code, int locally_generated,
const u8 *ie, size_t ie_len, int deauth)
{
#ifdef CONFIG_AP
if (wpa_s->ap_iface && addr) {
hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
return;
}
if (wpa_s->ap_iface) {
wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
return;
}
#endif /* CONFIG_AP */
if (!locally_generated)
wpa_s->own_disconnect_req = 0;
wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
(wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
eapol_sm_failed(wpa_s->eapol))) &&
!wpa_s->eap_expected_failure))
wpas_auth_failed(wpa_s, "AUTH_FAILED", addr);
#ifdef CONFIG_P2P
if (deauth && reason_code > 0) {
if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
locally_generated) > 0) {
/*
* The interface was removed, so cannot continue
* processing any additional operations after this.
*/
return;
}
}
#endif /* CONFIG_P2P */
wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
locally_generated);
}
static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
struct disassoc_info *info)
{
u16 reason_code = 0;
int locally_generated = 0;
const u8 *addr = NULL;
const u8 *ie = NULL;
size_t ie_len = 0;
wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
if (info) {
addr = info->addr;
ie = info->ie;
ie_len = info->ie_len;
reason_code = info->reason_code;
locally_generated = info->locally_generated;
wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s", reason_code,
reason2str(reason_code),
locally_generated ? " locally_generated=1" : "");
if (addr)
wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
MAC2STR(addr));
wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
ie, ie_len);
}
#ifdef CONFIG_AP
if (wpa_s->ap_iface && info && info->addr) {
hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
return;
}
if (wpa_s->ap_iface) {
wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
return;
}
#endif /* CONFIG_AP */
#ifdef CONFIG_P2P
if (info) {
wpas_p2p_disassoc_notif(
wpa_s, info->addr, reason_code, info->ie, info->ie_len,
locally_generated);
}
#endif /* CONFIG_P2P */
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
sme_event_disassoc(wpa_s, info);
wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
ie, ie_len, 0);
}
static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
struct deauth_info *info)
{
u16 reason_code = 0;
int locally_generated = 0;
const u8 *addr = NULL;
const u8 *ie = NULL;
size_t ie_len = 0;
wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
if (info) {
addr = info->addr;
ie = info->ie;
ie_len = info->ie_len;
reason_code = info->reason_code;
locally_generated = info->locally_generated;
wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s",
reason_code, reason2str(reason_code),
locally_generated ? " locally_generated=1" : "");
if (addr) {
wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
MAC2STR(addr));
}
wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
ie, ie_len);
}
wpa_reset_ft_completed(wpa_s->wpa);
wpas_event_disconnect(wpa_s, addr, reason_code,
locally_generated, ie, ie_len, 1);
}
static const char * reg_init_str(enum reg_change_initiator init)
{
switch (init) {
case REGDOM_SET_BY_CORE:
return "CORE";
case REGDOM_SET_BY_USER:
return "USER";
case REGDOM_SET_BY_DRIVER:
return "DRIVER";
case REGDOM_SET_BY_COUNTRY_IE:
return "COUNTRY_IE";
case REGDOM_BEACON_HINT:
return "BEACON_HINT";
}
return "?";
}
static const char * reg_type_str(enum reg_type type)
{
switch (type) {
case REGDOM_TYPE_UNKNOWN:
return "UNKNOWN";
case REGDOM_TYPE_COUNTRY:
return "COUNTRY";
case REGDOM_TYPE_WORLD:
return "WORLD";
case REGDOM_TYPE_CUSTOM_WORLD:
return "CUSTOM_WORLD";
case REGDOM_TYPE_INTERSECTION:
return "INTERSECTION";
}
return "?";
}
static void wpas_beacon_hint(struct wpa_supplicant *wpa_s, const char *title,
struct frequency_attrs *attrs)
{
if (!attrs->freq)
return;
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_BEACON_HINT
"%s freq=%u max_tx_power=%u%s%s%s",
title, attrs->freq, attrs->max_tx_power,
attrs->disabled ? " disabled=1" : "",
attrs->no_ir ? " no_ir=1" : "",
attrs->radar ? " radar=1" : "");
}
void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s,
struct channel_list_changed *info)
{
struct wpa_supplicant *ifs;
u8 dfs_domain;
/*
* To allow backwards compatibility with higher level layers that
* assumed the REGDOM_CHANGE event is sent over the initially added
* interface. Find the highest parent of this interface and use it to
* send the event.
*/
for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
;
if (info) {
wpa_msg(ifs, MSG_INFO,
WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
reg_init_str(info->initiator), reg_type_str(info->type),
info->alpha2[0] ? " alpha2=" : "",
info->alpha2[0] ? info->alpha2 : "");
if (info->initiator == REGDOM_BEACON_HINT) {
wpas_beacon_hint(ifs, "before",
&info->beacon_hint_before);
wpas_beacon_hint(ifs, "after",
&info->beacon_hint_after);
}
}
if (wpa_s->drv_priv == NULL)
return; /* Ignore event during drv initialization */
dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
radio_list) {
bool was_6ghz_enabled;
wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
ifs->ifname);
free_hw_features(ifs);
ifs->hw.modes = wpa_drv_get_hw_feature_data(
ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain);
was_6ghz_enabled = ifs->is_6ghz_enabled;
ifs->is_6ghz_enabled = wpas_is_6ghz_supported(ifs, true);
/* Restart PNO/sched_scan with updated channel list */
if (ifs->pno) {
wpas_stop_pno(ifs);
wpas_start_pno(ifs);
} else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
wpa_dbg(ifs, MSG_DEBUG,
"Channel list changed - restart sched_scan");
wpas_scan_restart_sched_scan(ifs);
} else if (!was_6ghz_enabled && ifs->is_6ghz_enabled) {
wpa_dbg(ifs, MSG_INFO,
"Channel list changed: 6 GHz was enabled");
ifs->crossed_6ghz_dom = true;
}
}
wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
}
static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
const u8 *frame, size_t len, int freq,
int rssi)
{
const struct ieee80211_mgmt *mgmt;
const u8 *payload;
size_t plen;
u8 category;
if (len < IEEE80211_HDRLEN + 2)
return;
mgmt = (const struct ieee80211_mgmt *) frame;
payload = frame + IEEE80211_HDRLEN;
category = *payload++;
plen = len - IEEE80211_HDRLEN - 1;
wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
" Category=%u DataLen=%d freq=%d MHz",
MAC2STR(mgmt->sa), category, (int) plen, freq);
#ifndef CONFIG_NO_WMM_AC
if (category == WLAN_ACTION_WMM) {
wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
return;
}
#endif /* CONFIG_NO_WMM_AC */
#ifdef CONFIG_IEEE80211R
if (category == WLAN_ACTION_FT) {
ft_rx_action(wpa_s, payload, plen);
return;
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_SME
if (category == WLAN_ACTION_SA_QUERY) {
sme_sa_query_rx(wpa_s, mgmt->da, mgmt->sa, payload, plen);
return;
}
#endif /* CONFIG_SME */
#ifdef CONFIG_WNM
if (mgmt->u.action.category == WLAN_ACTION_WNM) {
ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
return;
}
#endif /* CONFIG_WNM */
#ifdef CONFIG_GAS
if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
mgmt->u.action.category,
payload, plen, freq) == 0)
return;
#endif /* CONFIG_GAS */
#ifdef CONFIG_GAS_SERVER
if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
mgmt->u.action.category,
payload, plen, freq) == 0)
return;
#endif /* CONFIG_GAS_SERVER */
#ifdef CONFIG_TDLS
if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
wpa_dbg(wpa_s, MSG_DEBUG,
"TDLS: Received Discovery Response from " MACSTR,
MAC2STR(mgmt->sa));
if (wpa_s->valid_links &&
wpa_tdls_process_discovery_response(wpa_s->wpa, mgmt->sa,
&payload[1], plen - 1))
wpa_dbg(wpa_s, MSG_ERROR,
"TDLS: Discovery Response process failed for "
MACSTR, MAC2STR(mgmt->sa));
return;
}
#endif /* CONFIG_TDLS */
#ifdef CONFIG_INTERWORKING
if (category == WLAN_ACTION_QOS && plen >= 1 &&
payload[0] == QOS_QOS_MAP_CONFIG) {
const u8 *pos = payload + 1;
size_t qlen = plen - 1;
wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
MACSTR, MAC2STR(mgmt->sa));
if (ether_addr_equal(mgmt->sa, wpa_s->bssid) &&
qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
pos[1] <= qlen - 2 && pos[1] >= 16)
wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
return;
}
#endif /* CONFIG_INTERWORKING */
#ifndef CONFIG_NO_RRM
if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
mgmt->da,
payload + 1,
plen - 1);
return;
}
if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
return;
}
if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
payload + 1, plen - 1,
rssi);
return;
}
#endif /* CONFIG_NO_RRM */
#ifdef CONFIG_FST
if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
fst_rx_action(wpa_s->fst, mgmt, len);
return;
}
#endif /* CONFIG_FST */
#ifdef CONFIG_NAN_USD
if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
WPA_GET_BE32(&payload[1]) == NAN_SDF_VENDOR_TYPE) {
payload += 5;
plen -= 5;
wpas_nan_usd_rx_sdf(wpa_s, mgmt->sa, freq, payload, plen);
return;
}
#endif /* CONFIG_NAN_USD */
#ifdef CONFIG_DPP
if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
WPA_GET_BE24(&payload[1]) == OUI_WFA &&
payload[4] == DPP_OUI_TYPE) {
payload++;
plen--;
wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
return;
}
#endif /* CONFIG_DPP */
#ifndef CONFIG_NO_ROBUST_AV
if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
payload[0] == ROBUST_AV_SCS_RESP) {
wpas_handle_robust_av_scs_recv_action(wpa_s, mgmt->sa,
payload + 1, plen - 1);
return;
}
if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
payload[0] == ROBUST_AV_MSCS_RESP) {
wpas_handle_robust_av_recv_action(wpa_s, mgmt->sa,
payload + 1, plen - 1);
return;
}
if (category == WLAN_ACTION_VENDOR_SPECIFIC_PROTECTED && plen > 4 &&
WPA_GET_BE32(payload) == QM_ACTION_VENDOR_TYPE) {
wpas_handle_qos_mgmt_recv_action(wpa_s, mgmt->sa,
payload + 4, plen - 4);
return;
}
#endif /* CONFIG_NO_ROBUST_AV */
wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
category, payload, plen, freq);
if (wpa_s->ifmsh)
mesh_mpm_action_rx(wpa_s, mgmt, len);
}
static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
union wpa_event_data *event)
{
struct wpa_freq_range_list *list;
char *str = NULL;
list = &event->freq_range;
if (list->num)
str = freq_range_list_str(list);
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
str ? str : "");
#ifdef CONFIG_P2P
if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
__func__);
} else {
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
/*
* The update channel flow will also take care of moving a GO
* from the unsafe frequency if needed.
*/
wpas_p2p_update_channel_list(wpa_s,
WPAS_P2P_CHANNEL_UPDATE_AVOID);
}
#endif /* CONFIG_P2P */
os_free(str);
}
static void wpa_supplicant_event_port_authorized(struct wpa_supplicant *wpa_s)
{
if (wpa_s->wpa_state == WPA_ASSOCIATED) {
wpa_supplicant_cancel_auth_timeout(wpa_s);
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
eapol_sm_notify_portValid(wpa_s->eapol, true);
eapol_sm_notify_eap_success(wpa_s->eapol, true);
wpa_s->drv_authorized_port = 1;
}
}
static unsigned int wpas_event_cac_ms(const struct wpa_supplicant *wpa_s,
int freq)
{
size_t i;
int j;
for (i = 0; i < wpa_s->hw.num_modes; i++) {
const struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
for (j = 0; j < mode->num_channels; j++) {
const struct hostapd_channel_data *chan;
chan = &mode->channels[j];
if (chan->freq == freq)
return chan->dfs_cac_ms;
}
}
return 0;
}
static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
struct dfs_event *radar)
{
#if defined(NEED_AP_MLME) && defined(CONFIG_AP)
if (wpa_s->ap_iface || wpa_s->ifmsh) {
wpas_ap_event_dfs_cac_started(wpa_s, radar);
} else
#endif /* NEED_AP_MLME && CONFIG_AP */
{
unsigned int cac_time = wpas_event_cac_ms(wpa_s, radar->freq);
cac_time /= 1000; /* convert from ms to sec */
if (!cac_time)
cac_time = 10 * 60; /* max timeout: 10 minutes */
/* Restart auth timeout: CAC time added to initial timeout */
wpas_auth_timeout_restart(wpa_s, cac_time);
}
}
static void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
struct dfs_event *radar)
{
#if defined(NEED_AP_MLME) && defined(CONFIG_AP)
if (wpa_s->ap_iface || wpa_s->ifmsh) {
wpas_ap_event_dfs_cac_finished(wpa_s, radar);
} else
#endif /* NEED_AP_MLME && CONFIG_AP */
{
/* Restart auth timeout with original value after CAC is
* finished */
wpas_auth_timeout_restart(wpa_s, 0);
}
}
static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
struct dfs_event *radar)
{
#if defined(NEED_AP_MLME) && defined(CONFIG_AP)
if (wpa_s->ap_iface || wpa_s->ifmsh) {
wpas_ap_event_dfs_cac_aborted(wpa_s, radar);
} else
#endif /* NEED_AP_MLME && CONFIG_AP */
{
/* Restart auth timeout with original value after CAC is
* aborted */
wpas_auth_timeout_restart(wpa_s, 0);
}
}
static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
wpa_dbg(wpa_s, MSG_DEBUG,
"Connection authorized by device, previous state %d",
wpa_s->wpa_state);
wpa_supplicant_event_port_authorized(wpa_s);
wpa_s->last_eapol_matches_bssid = 1;
wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
data->assoc_info.ptk_kck_len,
data->assoc_info.ptk_kek,
data->assoc_info.ptk_kek_len);
#ifdef CONFIG_FILS
if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
/* Update ERP next sequence number */
eapol_sm_update_erp_next_seq_num(
wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
/* Add the new PMK and PMKID to the PMKSA cache */
wpa_sm_pmksa_cache_add(wpa_s->wpa,
data->assoc_info.fils_pmk,
data->assoc_info.fils_pmk_len,
data->assoc_info.fils_pmkid,
wpa_s->valid_links ?
wpa_s->ap_mld_addr :
wpa_s->bssid,
fils_cache_id);
} else if (data->assoc_info.fils_pmkid) {
/* Update the current PMKSA used for this connection */
pmksa_cache_set_current(wpa_s->wpa,
data->assoc_info.fils_pmkid,
NULL, NULL, 0, NULL, 0, true);
}
}
#endif /* CONFIG_FILS */
}
static const char * connect_fail_reason(enum sta_connect_fail_reason_codes code)
{
switch (code) {
case STA_CONNECT_FAIL_REASON_UNSPECIFIED:
return "";
case STA_CONNECT_FAIL_REASON_NO_BSS_FOUND:
return "no_bss_found";
case STA_CONNECT_FAIL_REASON_AUTH_TX_FAIL:
return "auth_tx_fail";
case STA_CONNECT_FAIL_REASON_AUTH_NO_ACK_RECEIVED:
return "auth_no_ack_received";
case STA_CONNECT_FAIL_REASON_AUTH_NO_RESP_RECEIVED:
return "auth_no_resp_received";
case STA_CONNECT_FAIL_REASON_ASSOC_REQ_TX_FAIL:
return "assoc_req_tx_fail";
case STA_CONNECT_FAIL_REASON_ASSOC_NO_ACK_RECEIVED:
return "assoc_no_ack_received";
case STA_CONNECT_FAIL_REASON_ASSOC_NO_RESP_RECEIVED:
return "assoc_no_resp_received";
default:
return "unknown_reason";
}
}
static void wpas_event_assoc_reject(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
const u8 *bssid = data->assoc_reject.bssid;
struct ieee802_11_elems elems;
struct ml_sta_link_info ml_info[MAX_NUM_MLD_LINKS];
const u8 *link_bssids[MAX_NUM_MLD_LINKS + 1];
#ifdef CONFIG_MBO
struct wpa_bss *reject_bss;
#endif /* CONFIG_MBO */
if (!bssid || is_zero_ether_addr(bssid))
bssid = wpa_s->pending_bssid;
#ifdef CONFIG_MBO
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
reject_bss = wpa_s->current_bss;
else
reject_bss = wpa_bss_get_bssid(wpa_s, bssid);
#endif /* CONFIG_MBO */
if (data->assoc_reject.bssid)
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
"bssid=" MACSTR " status_code=%u%s%s%s%s%s",
MAC2STR(data->assoc_reject.bssid),
data->assoc_reject.status_code,
data->assoc_reject.timed_out ? " timeout" : "",
data->assoc_reject.timeout_reason ? "=" : "",
data->assoc_reject.timeout_reason ?
data->assoc_reject.timeout_reason : "",
data->assoc_reject.reason_code !=
STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
" qca_driver_reason=" : "",
connect_fail_reason(data->assoc_reject.reason_code));
else
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
"status_code=%u%s%s%s%s%s",
data->assoc_reject.status_code,
data->assoc_reject.timed_out ? " timeout" : "",
data->assoc_reject.timeout_reason ? "=" : "",
data->assoc_reject.timeout_reason ?
data->assoc_reject.timeout_reason : "",
data->assoc_reject.reason_code !=
STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
" qca_driver_reason=" : "",
connect_fail_reason(data->assoc_reject.reason_code));
wpa_s->assoc_status_code = data->assoc_reject.status_code;
wpas_notify_assoc_status_code(wpa_s);
#ifdef CONFIG_OWE
if (data->assoc_reject.status_code ==
WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
wpa_s->current_ssid &&
wpa_s->current_ssid->owe_group == 0 &&
wpa_s->last_owe_group != 21) {
struct wpa_ssid *ssid = wpa_s->current_ssid;
struct wpa_bss *bss = wpa_s->current_bss;
if (!bss) {
bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
if (!bss) {
wpas_connection_failed(wpa_s, bssid, NULL);
wpa_supplicant_mark_disassoc(wpa_s);
return;
}
}
wpa_printf(MSG_DEBUG, "OWE: Try next supported DH group");
wpas_connect_work_done(wpa_s);
wpa_supplicant_mark_disassoc(wpa_s);
wpa_supplicant_connect(wpa_s, bss, ssid);
return;
}
#endif /* CONFIG_OWE */
#ifdef CONFIG_DPP2
/* Try to follow AP's PFS policy. WLAN_STATUS_ASSOC_DENIED_UNSPEC is
* the status code defined in the DPP R2 tech spec.
* WLAN_STATUS_AKMP_NOT_VALID is addressed in the same manner as an
* interoperability workaround with older hostapd implementation. */
if (DPP_VERSION > 1 && wpa_s->current_ssid &&
(wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP ||
((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
wpa_s->key_mgmt == WPA_KEY_MGMT_DPP)) &&
wpa_s->current_ssid->dpp_pfs == 0 &&
(data->assoc_reject.status_code ==
WLAN_STATUS_ASSOC_DENIED_UNSPEC ||
data->assoc_reject.status_code == WLAN_STATUS_AKMP_NOT_VALID)) {
struct wpa_ssid *ssid = wpa_s->current_ssid;
struct wpa_bss *bss = wpa_s->current_bss;
wpa_s->current_ssid->dpp_pfs_fallback ^= 1;
if (!bss)
bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
if (!bss || wpa_s->dpp_pfs_fallback) {
wpa_printf(MSG_DEBUG,
"DPP: Updated PFS policy for next try");
wpas_connection_failed(wpa_s, bssid, NULL);
wpa_supplicant_mark_disassoc(wpa_s);
return;
}
wpa_printf(MSG_DEBUG, "DPP: Try again with updated PFS policy");
wpa_s->dpp_pfs_fallback = 1;
wpas_connect_work_done(wpa_s);
wpa_supplicant_mark_disassoc(wpa_s);
wpa_supplicant_connect(wpa_s, bss, ssid);
return;
}
#endif /* CONFIG_DPP2 */
#ifdef CONFIG_MBO
if (data->assoc_reject.status_code ==
WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS &&
reject_bss && data->assoc_reject.resp_ies) {
const u8 *rssi_rej;
rssi_rej = mbo_get_attr_from_ies(
data->assoc_reject.resp_ies,
data->assoc_reject.resp_ies_len,
OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT);
if (rssi_rej && rssi_rej[1] == 2) {
wpa_printf(MSG_DEBUG,
"OCE: RSSI-based association rejection from "
MACSTR " (Delta RSSI: %u, Retry Delay: %u)",
MAC2STR(reject_bss->bssid),
rssi_rej[2], rssi_rej[3]);
wpa_bss_tmp_disallow(wpa_s,
reject_bss->bssid,
rssi_rej[3],
rssi_rej[2] + reject_bss->level);
}
}
#endif /* CONFIG_MBO */
/* Check for other failed links in the response */
os_memset(link_bssids, 0, sizeof(link_bssids));
if (ieee802_11_parse_elems(data->assoc_reject.resp_ies,
data->assoc_reject.resp_ies_len,
&elems, 1) != ParseFailed) {
unsigned int n_links, i, idx;
idx = 0;
n_links = wpas_ml_parse_assoc(wpa_s, &elems, ml_info);
for (i = 1; i < n_links; i++) {
/* The status cannot be success here.
* Add the link to the failed list if it is reporting
* an error. The only valid "non-error" status is
* TX_LINK_NOT_ACCEPTED as that means this link may
* still accept an association from us.
*/
if (ml_info[i].status !=
WLAN_STATUS_DENIED_TX_LINK_NOT_ACCEPTED) {
link_bssids[idx] = ml_info[i].bssid;
idx++;
}
}
}
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
sme_event_assoc_reject(wpa_s, data, link_bssids);
return;
}
/* Driver-based SME cases */
#ifdef CONFIG_SAE
if (wpa_s->current_ssid &&
wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt) &&
!data->assoc_reject.timed_out) {
wpa_dbg(wpa_s, MSG_DEBUG, "SAE: Drop PMKSA cache entry");
wpa_sm_aborted_cached(wpa_s->wpa);
wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
}
#endif /* CONFIG_SAE */
#ifdef CONFIG_DPP
if (wpa_s->current_ssid &&
wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
!data->assoc_reject.timed_out) {
wpa_dbg(wpa_s, MSG_DEBUG, "DPP: Drop PMKSA cache entry");
wpa_sm_aborted_cached(wpa_s->wpa);
wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
}
#endif /* CONFIG_DPP */
#ifdef CONFIG_FILS
/* Update ERP next sequence number */
if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
fils_pmksa_cache_flush(wpa_s);
eapol_sm_update_erp_next_seq_num(
wpa_s->eapol,
data->assoc_reject.fils_erp_next_seq_num);
fils_connection_failure(wpa_s);
}
#endif /* CONFIG_FILS */
wpas_connection_failed(wpa_s, bssid, link_bssids);
wpa_supplicant_mark_disassoc(wpa_s);
}
static void wpas_event_unprot_beacon(struct wpa_supplicant *wpa_s,
struct unprot_beacon *data)
{
struct wpabuf *buf;
int res;
if (!data || wpa_s->wpa_state != WPA_COMPLETED ||
!ether_addr_equal(data->sa, wpa_s->bssid))
return;
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_UNPROT_BEACON MACSTR,
MAC2STR(data->sa));
buf = wpabuf_alloc(4);
if (!buf)
return;
wpabuf_put_u8(buf, WLAN_ACTION_WNM);
wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ);
wpabuf_put_u8(buf, 1); /* Dialog Token */
wpabuf_put_u8(buf, WNM_NOTIF_TYPE_BEACON_PROTECTION_FAILURE);
res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
wpa_s->own_addr, wpa_s->bssid,
wpabuf_head(buf), wpabuf_len(buf), 0);
if (res < 0)
wpa_printf(MSG_DEBUG,
"Failed to send WNM-Notification Request frame");
wpabuf_free(buf);
}
static const char * bitmap_to_str(u8 value, char *buf)
{
char *pos = buf;
int i, k = 0;
for (i = 7; i >= 0; i--)
pos[k++] = (value & BIT(i)) ? '1' : '0';
pos[8] = '\0';
return pos;
}
static void wpas_tid_link_map(struct wpa_supplicant *wpa_s,
struct tid_link_map_info *info)
{
char map_info[1000], *pos, *end;
int res, i;
pos = map_info;
end = pos + sizeof(map_info);
res = os_snprintf(map_info, sizeof(map_info), "default=%d",
info->default_map);
if (os_snprintf_error(end - pos, res))
return;
pos += res;
if (!info->default_map) {
for_each_link(info->valid_links, i) {
char uplink_map_str[9];
char downlink_map_str[9];
bitmap_to_str(info->t2lmap[i].uplink, uplink_map_str);
bitmap_to_str(info->t2lmap[i].downlink,
downlink_map_str);
res = os_snprintf(pos, end - pos,
" link_id=%d up_link=%s down_link=%s",
i, uplink_map_str,
downlink_map_str);
if (os_snprintf_error(end - pos, res))
return;
pos += res;
}
}
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_T2LM_UPDATE "%s", map_info);
}
static void wpas_link_reconfig(struct wpa_supplicant *wpa_s)
{
u8 bssid[ETH_ALEN];
if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
wpa_printf(MSG_ERROR, "LINK_RECONFIG: Failed to get BSSID");
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
return;
}
if (!ether_addr_equal(bssid, wpa_s->bssid)) {
os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
wpa_supplicant_update_current_bss(wpa_s, wpa_s->bssid);
wpas_notify_bssid_changed(wpa_s);
}
if (wpa_drv_get_mlo_info(wpa_s) < 0) {
wpa_printf(MSG_ERROR,
"LINK_RECONFIG: Failed to get MLO connection info");
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
return;
}
if (wpa_sm_set_ml_info(wpa_s)) {
wpa_printf(MSG_ERROR,
"LINK_RECONFIG: Failed to set MLO connection info to wpa_sm");
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
return;
}
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_LINK_RECONFIG "valid_links=0x%x",
wpa_s->valid_links);
}
void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
union wpa_event_data *data)
{
struct wpa_supplicant *wpa_s = ctx;
int resched;
struct os_reltime age, clear_at;
#ifndef CONFIG_NO_STDOUT_DEBUG
int level = MSG_DEBUG;
#endif /* CONFIG_NO_STDOUT_DEBUG */
if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
event != EVENT_INTERFACE_ENABLED &&
event != EVENT_INTERFACE_STATUS &&
event != EVENT_SCAN_RESULTS &&
event != EVENT_SCHED_SCAN_STOPPED) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Ignore event %s (%d) while interface is disabled",
event_to_string(event), event);
return;
}
#ifndef CONFIG_NO_STDOUT_DEBUG
if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
const struct ieee80211_hdr *hdr;
u16 fc;
hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
fc = le_to_host16(hdr->frame_control);
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
level = MSG_EXCESSIVE;
}
wpa_dbg(wpa_s, level, "Event %s (%d) received",
event_to_string(event), event);
#endif /* CONFIG_NO_STDOUT_DEBUG */
switch (event) {
case EVENT_AUTH:
#ifdef CONFIG_FST
if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
data->auth.ies_len))
wpa_printf(MSG_DEBUG,
"FST: MB IEs updated from auth IE");
#endif /* CONFIG_FST */
sme_event_auth(wpa_s, data);
wpa_s->auth_status_code = data->auth.status_code;
wpas_notify_auth_status_code(wpa_s);
break;
case EVENT_ASSOC:
#ifdef CONFIG_TESTING_OPTIONS
if (wpa_s->ignore_auth_resp) {
wpa_printf(MSG_INFO,
"EVENT_ASSOC - ignore_auth_resp active!");
break;
}
if (wpa_s->testing_resend_assoc) {
wpa_printf(MSG_INFO,
"EVENT_DEAUTH - testing_resend_assoc");
break;
}
#endif /* CONFIG_TESTING_OPTIONS */
if (wpa_s->disconnected) {
wpa_printf(MSG_INFO,
"Ignore unexpected EVENT_ASSOC in disconnected state");
break;
}
wpa_supplicant_event_assoc(wpa_s, data);
wpa_s->assoc_status_code = WLAN_STATUS_SUCCESS;
if (data &&
(data->assoc_info.authorized ||
(!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
wpa_fils_is_completed(wpa_s->wpa))))
wpa_supplicant_event_assoc_auth(wpa_s, data);
if (data) {
wpa_msg(wpa_s, MSG_INFO,
WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
data->assoc_info.subnet_status);
}
break;
case EVENT_DISASSOC:
wpas_event_disassoc(wpa_s,
data ? &data->disassoc_info : NULL);
break;
case EVENT_DEAUTH:
#ifdef CONFIG_TESTING_OPTIONS
if (wpa_s->ignore_auth_resp) {
wpa_printf(MSG_INFO,
"EVENT_DEAUTH - ignore_auth_resp active!");
break;
}
if (wpa_s->testing_resend_assoc) {
wpa_printf(MSG_INFO,
"EVENT_DEAUTH - testing_resend_assoc");
break;
}
#endif /* CONFIG_TESTING_OPTIONS */
wpas_event_deauth(wpa_s,
data ? &data->deauth_info : NULL);
break;
case EVENT_LINK_RECONFIG:
wpas_link_reconfig(wpa_s);
break;
case EVENT_MICHAEL_MIC_FAILURE:
wpa_supplicant_event_michael_mic_failure(wpa_s, data);
break;
#ifndef CONFIG_NO_SCAN_PROCESSING
case EVENT_SCAN_STARTED:
if (wpa_s->own_scan_requested ||
(data && !data->scan_info.external_scan)) {
struct os_reltime diff;
os_get_reltime(&wpa_s->scan_start_time);
os_reltime_sub(&wpa_s->scan_start_time,
&wpa_s->scan_trigger_time, &diff);
wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
diff.sec, diff.usec);
wpa_s->own_scan_requested = 0;
wpa_s->own_scan_running = 1;
if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
wpa_s->manual_scan_use_id) {
wpa_msg_ctrl(wpa_s, MSG_INFO,
WPA_EVENT_SCAN_STARTED "id=%u",
wpa_s->manual_scan_id);
} else {
wpa_msg_ctrl(wpa_s, MSG_INFO,
WPA_EVENT_SCAN_STARTED);
}
} else {
wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
wpa_s->radio->external_scan_req_interface = wpa_s;
wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
}
break;
case EVENT_SCAN_RESULTS:
if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
wpa_s->scan_res_handler = NULL;
wpa_s->own_scan_running = 0;
wpa_s->radio->external_scan_req_interface = NULL;
wpa_s->last_scan_req = NORMAL_SCAN_REQ;
break;
}
if (!(data && data->scan_info.external_scan) &&
os_reltime_initialized(&wpa_s->scan_start_time)) {
struct os_reltime now, diff;
os_get_reltime(&now);
os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
wpa_s->scan_start_time.sec = 0;
wpa_s->scan_start_time.usec = 0;
wpa_s->wps_scan_done = true;
wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
diff.sec, diff.usec);
}
if (wpa_supplicant_event_scan_results(wpa_s, data))
break; /* interface may have been removed */
if (!(data && data->scan_info.external_scan))
wpa_s->own_scan_running = 0;
if (data && data->scan_info.nl_scan_event)
wpa_s->radio->external_scan_req_interface = NULL;
radio_work_check_next(wpa_s);
break;
#endif /* CONFIG_NO_SCAN_PROCESSING */
case EVENT_ASSOCINFO:
wpa_supplicant_event_associnfo(wpa_s, data);
break;
case EVENT_INTERFACE_STATUS:
wpa_supplicant_event_interface_status(wpa_s, data);
break;
case EVENT_PMKID_CANDIDATE:
wpa_supplicant_event_pmkid_candidate(wpa_s, data);
break;
#ifdef CONFIG_TDLS
case EVENT_TDLS:
wpa_supplicant_event_tdls(wpa_s, data);
break;
#endif /* CONFIG_TDLS */
#ifdef CONFIG_WNM
case EVENT_WNM:
wpa_supplicant_event_wnm(wpa_s, data);
break;
#endif /* CONFIG_WNM */
#ifdef CONFIG_IEEE80211R
case EVENT_FT_RESPONSE:
wpa_supplicant_event_ft_response(wpa_s, data);
break;
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IBSS_RSN
case EVENT_IBSS_RSN_START:
wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
break;
#endif /* CONFIG_IBSS_RSN */
case EVENT_ASSOC_REJECT:
wpas_event_assoc_reject(wpa_s, data);
break;
case EVENT_AUTH_TIMED_OUT:
/* It is possible to get this event from earlier connection */
if (wpa_s->current_ssid &&
wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Ignore AUTH_TIMED_OUT in mesh configuration");
break;
}
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
sme_event_auth_timed_out(wpa_s, data);
break;
case EVENT_ASSOC_TIMED_OUT:
/* It is possible to get this event from earlier connection */
if (wpa_s->current_ssid &&
wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Ignore ASSOC_TIMED_OUT in mesh configuration");
break;
}
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
sme_event_assoc_timed_out(wpa_s, data);
break;
case EVENT_TX_STATUS:
wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
" type=%d stype=%d",
MAC2STR(data->tx_status.dst),
data->tx_status.type, data->tx_status.stype);
#ifdef CONFIG_WNM
if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
wnm_btm_resp_tx_status(wpa_s, data->tx_status.data,
data->tx_status.data_len) == 0)
break;
#endif /* CONFIG_WNM */
#ifdef CONFIG_PASN
if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
data->tx_status.stype == WLAN_FC_STYPE_AUTH &&
wpas_pasn_auth_tx_status(wpa_s, data->tx_status.data,
data->tx_status.data_len,
data->tx_status.ack) == 0)
break;
#endif /* CONFIG_PASN */
#ifdef CONFIG_AP
if (wpa_s->ap_iface == NULL) {
#ifdef CONFIG_OFFCHANNEL
if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
data->tx_status.stype == WLAN_FC_STYPE_ACTION)
offchannel_send_action_tx_status(
wpa_s, data->tx_status.dst,
data->tx_status.data,
data->tx_status.data_len,
data->tx_status.ack ?
OFFCHANNEL_SEND_ACTION_SUCCESS :
OFFCHANNEL_SEND_ACTION_NO_ACK);
#endif /* CONFIG_OFFCHANNEL */
break;
}
#endif /* CONFIG_AP */
#ifdef CONFIG_OFFCHANNEL
wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
/*
* Catch TX status events for Action frames we sent via group
* interface in GO mode, or via standalone AP interface.
* Note, wpa_s->p2pdev will be the same as wpa_s->parent,
* except when the primary interface is used as a GO interface
* (for drivers which do not have group interface concurrency)
*/
if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
ether_addr_equal(wpa_s->p2pdev->pending_action_dst,
data->tx_status.dst)) {
offchannel_send_action_tx_status(
wpa_s->p2pdev, data->tx_status.dst,
data->tx_status.data,
data->tx_status.data_len,
data->tx_status.ack ?
OFFCHANNEL_SEND_ACTION_SUCCESS :
OFFCHANNEL_SEND_ACTION_NO_ACK);
break;
}
#endif /* CONFIG_OFFCHANNEL */
#ifdef CONFIG_AP
switch (data->tx_status.type) {
case WLAN_FC_TYPE_MGMT:
ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
data->tx_status.data_len,
data->tx_status.stype,
data->tx_status.ack);
break;
case WLAN_FC_TYPE_DATA:
ap_tx_status(wpa_s, data->tx_status.dst,
data->tx_status.data,
data->tx_status.data_len,
data->tx_status.ack);
break;
}
#endif /* CONFIG_AP */
break;
#ifdef CONFIG_AP
case EVENT_EAPOL_TX_STATUS:
ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
data->eapol_tx_status.data,
data->eapol_tx_status.data_len,
data->eapol_tx_status.ack);
break;
case EVENT_DRIVER_CLIENT_POLL_OK:
ap_client_poll_ok(wpa_s, data->client_poll.addr);
break;
case EVENT_RX_FROM_UNKNOWN:
if (wpa_s->ap_iface == NULL)
break;
ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
data->rx_from_unknown.wds);
break;
#endif /* CONFIG_AP */
case EVENT_LINK_CH_SWITCH_STARTED:
case EVENT_LINK_CH_SWITCH:
if (!data || !wpa_s->current_ssid ||
!(wpa_s->valid_links & BIT(data->ch_switch.link_id)))
break;
wpa_msg(wpa_s, MSG_INFO,
"%sfreq=%d link_id=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
event == EVENT_LINK_CH_SWITCH ?
WPA_EVENT_LINK_CHANNEL_SWITCH :
WPA_EVENT_LINK_CHANNEL_SWITCH_STARTED,
data->ch_switch.freq,
data->ch_switch.link_id,
data->ch_switch.ht_enabled,
data->ch_switch.ch_offset,
channel_width_to_string(data->ch_switch.ch_width),
data->ch_switch.cf1,
data->ch_switch.cf2);
if (event == EVENT_LINK_CH_SWITCH_STARTED)
break;
wpa_s->links[data->ch_switch.link_id].freq =
data->ch_switch.freq;
if (wpa_s->links[data->ch_switch.link_id].bss &&
wpa_s->links[data->ch_switch.link_id].bss->freq !=
data->ch_switch.freq) {
wpa_s->links[data->ch_switch.link_id].bss->freq =
data->ch_switch.freq;
notify_bss_changes(
wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
wpa_s->links[data->ch_switch.link_id].bss);
}
break;
case EVENT_CH_SWITCH_STARTED:
case EVENT_CH_SWITCH:
if (!data || !wpa_s->current_ssid)
break;
wpa_msg(wpa_s, MSG_INFO,
"%sfreq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
event == EVENT_CH_SWITCH ? WPA_EVENT_CHANNEL_SWITCH :
WPA_EVENT_CHANNEL_SWITCH_STARTED,
data->ch_switch.freq,
data->ch_switch.ht_enabled,
data->ch_switch.ch_offset,
channel_width_to_string(data->ch_switch.ch_width),
data->ch_switch.cf1,
data->ch_switch.cf2);
if (event == EVENT_CH_SWITCH_STARTED)
break;
wpa_s->assoc_freq = data->ch_switch.freq;
wpa_s->current_ssid->frequency = data->ch_switch.freq;
if (wpa_s->current_bss &&
wpa_s->current_bss->freq != data->ch_switch.freq) {
wpa_s->current_bss->freq = data->ch_switch.freq;
notify_bss_changes(wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
wpa_s->current_bss);
}
#ifdef CONFIG_SME
switch (data->ch_switch.ch_offset) {
case 1:
wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
break;
case -1:
wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
break;
default:
wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
break;
}
#endif /* CONFIG_SME */
#ifdef CONFIG_AP
if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
wpa_s->current_ssid->mode == WPAS_MODE_MESH ||
wpa_s->current_ssid->mode ==
WPAS_MODE_P2P_GROUP_FORMATION) {
wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
data->ch_switch.ht_enabled,
data->ch_switch.ch_offset,
data->ch_switch.ch_width,
data->ch_switch.cf1,
data->ch_switch.cf2,
data->ch_switch.punct_bitmap,
1);
}
#endif /* CONFIG_AP */
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
sme_event_ch_switch(wpa_s);
wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
wnm_clear_coloc_intf_reporting(wpa_s);
break;
#ifdef CONFIG_AP
#ifdef NEED_AP_MLME
case EVENT_DFS_RADAR_DETECTED:
if (data)
wpas_ap_event_dfs_radar_detected(wpa_s,
&data->dfs_event);
break;
case EVENT_DFS_NOP_FINISHED:
if (data)
wpas_ap_event_dfs_cac_nop_finished(wpa_s,
&data->dfs_event);
break;
#endif /* NEED_AP_MLME */
#endif /* CONFIG_AP */
case EVENT_DFS_CAC_STARTED:
if (data)
wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
break;
case EVENT_DFS_CAC_FINISHED:
if (data)
wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
break;
case EVENT_DFS_CAC_ABORTED:
if (data)
wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
break;
case EVENT_RX_MGMT: {
u16 fc, stype;
const struct ieee80211_mgmt *mgmt;
#ifdef CONFIG_TESTING_OPTIONS
if (wpa_s->ext_mgmt_frame_handling) {
struct rx_mgmt *rx = &data->rx_mgmt;
size_t hex_len = 2 * rx->frame_len + 1;
char *hex = os_malloc(hex_len);
if (hex) {
wpa_snprintf_hex(hex, hex_len,
rx->frame, rx->frame_len);
wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
rx->freq, rx->datarate, rx->ssi_signal,
hex);
os_free(hex);
}
break;
}
#endif /* CONFIG_TESTING_OPTIONS */
mgmt = (const struct ieee80211_mgmt *)
data->rx_mgmt.frame;
fc = le_to_host16(mgmt->frame_control);
stype = WLAN_FC_GET_STYPE(fc);
#ifdef CONFIG_AP
if (wpa_s->ap_iface == NULL) {
#endif /* CONFIG_AP */
#ifdef CONFIG_P2P
if (stype == WLAN_FC_STYPE_PROBE_REQ &&
data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
const u8 *src = mgmt->sa;
const u8 *ie;
size_t ie_len;
ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
ie_len = data->rx_mgmt.frame_len -
IEEE80211_HDRLEN;
wpas_p2p_probe_req_rx(
wpa_s, src, mgmt->da,
mgmt->bssid, ie, ie_len,
data->rx_mgmt.freq,
data->rx_mgmt.ssi_signal);
break;
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_IBSS_RSN
if (wpa_s->current_ssid &&
wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
stype == WLAN_FC_STYPE_AUTH &&
data->rx_mgmt.frame_len >= 30) {
wpa_supplicant_event_ibss_auth(wpa_s, data);
break;
}
#endif /* CONFIG_IBSS_RSN */
if (stype == WLAN_FC_STYPE_ACTION) {
wpas_event_rx_mgmt_action(
wpa_s, data->rx_mgmt.frame,
data->rx_mgmt.frame_len,
data->rx_mgmt.freq,
data->rx_mgmt.ssi_signal);
break;
}
if (wpa_s->ifmsh) {
mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
break;
}
#ifdef CONFIG_PASN
if (stype == WLAN_FC_STYPE_AUTH &&
wpas_pasn_auth_rx(wpa_s, mgmt,
data->rx_mgmt.frame_len) != -2)
break;
#endif /* CONFIG_PASN */
#ifdef CONFIG_SAE
if (stype == WLAN_FC_STYPE_AUTH &&
!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) {
sme_external_auth_mgmt_rx(
wpa_s, data->rx_mgmt.frame,
data->rx_mgmt.frame_len);
break;
}
#endif /* CONFIG_SAE */
wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
"management frame in non-AP mode");
break;
#ifdef CONFIG_AP
}
if (stype == WLAN_FC_STYPE_PROBE_REQ &&
data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
const u8 *ie;
size_t ie_len;
ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
mgmt->bssid, ie, ie_len,
data->rx_mgmt.ssi_signal);
}
ap_mgmt_rx(wpa_s, &data->rx_mgmt);
#endif /* CONFIG_AP */
break;
}
case EVENT_RX_PROBE_REQ:
if (data->rx_probe_req.sa == NULL ||
data->rx_probe_req.ie == NULL)
break;
#ifdef CONFIG_AP
if (wpa_s->ap_iface) {
hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
data->rx_probe_req.sa,
data->rx_probe_req.da,
data->rx_probe_req.bssid,
data->rx_probe_req.ie,
data->rx_probe_req.ie_len,
data->rx_probe_req.ssi_signal);
break;
}
#endif /* CONFIG_AP */
wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
data->rx_probe_req.da,
data->rx_probe_req.bssid,
data->rx_probe_req.ie,
data->rx_probe_req.ie_len,
0,
data->rx_probe_req.ssi_signal);
break;
case EVENT_REMAIN_ON_CHANNEL:
#ifdef CONFIG_OFFCHANNEL
offchannel_remain_on_channel_cb(
wpa_s, data->remain_on_channel.freq,
data->remain_on_channel.duration);
#endif /* CONFIG_OFFCHANNEL */
wpas_p2p_remain_on_channel_cb(
wpa_s, data->remain_on_channel.freq,
data->remain_on_channel.duration);
#ifdef CONFIG_DPP
wpas_dpp_remain_on_channel_cb(
wpa_s, data->remain_on_channel.freq,
data->remain_on_channel.duration);
#endif /* CONFIG_DPP */
#ifdef CONFIG_NAN_USD
wpas_nan_usd_remain_on_channel_cb(
wpa_s, data->remain_on_channel.freq,
data->remain_on_channel.duration);
#endif /* CONFIG_NAN_USD */
break;
case EVENT_CANCEL_REMAIN_ON_CHANNEL:
#ifdef CONFIG_OFFCHANNEL
offchannel_cancel_remain_on_channel_cb(
wpa_s, data->remain_on_channel.freq);
#endif /* CONFIG_OFFCHANNEL */
wpas_p2p_cancel_remain_on_channel_cb(
wpa_s, data->remain_on_channel.freq);
#ifdef CONFIG_DPP
wpas_dpp_cancel_remain_on_channel_cb(
wpa_s, data->remain_on_channel.freq);
#endif /* CONFIG_DPP */
#ifdef CONFIG_NAN_USD
wpas_nan_usd_cancel_remain_on_channel_cb(
wpa_s, data->remain_on_channel.freq);
#endif /* CONFIG_NAN_USD */
break;
case EVENT_EAPOL_RX:
wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
data->eapol_rx.data,
data->eapol_rx.data_len,
data->eapol_rx.encrypted);
break;
case EVENT_SIGNAL_CHANGE:
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
"above=%d signal=%d noise=%d txrate=%lu",
data->signal_change.above_threshold,
data->signal_change.data.signal,
data->signal_change.current_noise,
data->signal_change.data.current_tx_rate);
wpa_bss_update_level(wpa_s->current_bss,
data->signal_change.data.signal);
bgscan_notify_signal_change(
wpa_s, data->signal_change.above_threshold,
data->signal_change.data.signal,
data->signal_change.current_noise,
data->signal_change.data.current_tx_rate);
os_memcpy(&wpa_s->last_signal_info, data,
sizeof(struct wpa_signal_info));
wpas_notify_signal_change(wpa_s);
break;
case EVENT_INTERFACE_MAC_CHANGED:
wpa_supplicant_update_mac_addr(wpa_s);
wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
break;
case EVENT_INTERFACE_ENABLED:
wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
u8 addr[ETH_ALEN];
eloop_cancel_timeout(wpas_clear_disabled_interface,
wpa_s, NULL);
os_memcpy(addr, wpa_s->own_addr, ETH_ALEN);
wpa_supplicant_update_mac_addr(wpa_s);
if (!ether_addr_equal(addr, wpa_s->own_addr))
wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
else
wpa_sm_pmksa_cache_reconfig(wpa_s->wpa);
wpa_supplicant_set_default_scan_ies(wpa_s);
if (wpa_s->p2p_mgmt) {
wpa_supplicant_set_state(wpa_s,
WPA_DISCONNECTED);
break;
}
#ifdef CONFIG_AP
if (!wpa_s->ap_iface) {
wpa_supplicant_set_state(wpa_s,
WPA_DISCONNECTED);
wpa_s->scan_req = NORMAL_SCAN_REQ;
wpa_supplicant_req_scan(wpa_s, 0, 0);
} else
wpa_supplicant_set_state(wpa_s,
WPA_COMPLETED);
#else /* CONFIG_AP */
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
wpa_supplicant_req_scan(wpa_s, 0, 0);
#endif /* CONFIG_AP */
}
break;
case EVENT_INTERFACE_DISABLED:
wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
#ifdef CONFIG_P2P
if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
(wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
/*
* Mark interface disabled if this happens to end up not
* being removed as a separate P2P group interface.
*/
wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
/*
* The interface was externally disabled. Remove
* it assuming an external entity will start a
* new session if needed.
*/
if (wpa_s->current_ssid &&
wpa_s->current_ssid->p2p_group)
wpas_p2p_interface_unavailable(wpa_s);
else
wpas_p2p_disconnect(wpa_s);
/*
* wpa_s instance may have been freed, so must not use
* it here anymore.
*/
break;
}
if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
p2p_in_progress(wpa_s->global->p2p) > 1) {
/* This radio work will be cancelled, so clear P2P
* state as well.
*/
p2p_stop_find(wpa_s->global->p2p);
}
#endif /* CONFIG_P2P */
if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
/*
* Indicate disconnection to keep ctrl_iface events
* consistent.
*/
wpa_supplicant_event_disassoc(
wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
}
wpa_supplicant_mark_disassoc(wpa_s);
os_reltime_age(&wpa_s->last_scan, &age);
if (age.sec >= wpa_s->conf->scan_res_valid_for_connect) {
clear_at.sec = wpa_s->conf->scan_res_valid_for_connect;
clear_at.usec = 0;
} else {
struct os_reltime tmp;
tmp.sec = wpa_s->conf->scan_res_valid_for_connect;
tmp.usec = 0;
os_reltime_sub(&tmp, &age, &clear_at);
}
eloop_register_timeout(clear_at.sec, clear_at.usec,
wpas_clear_disabled_interface,
wpa_s, NULL);
radio_remove_works(wpa_s, NULL, 0);
wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
break;
case EVENT_CHANNEL_LIST_CHANGED:
wpa_supplicant_update_channel_list(
wpa_s, &data->channel_list_changed);
break;
case EVENT_INTERFACE_UNAVAILABLE:
wpas_p2p_interface_unavailable(wpa_s);
break;
case EVENT_BEST_CHANNEL:
wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
"(%d %d %d)",
data->best_chan.freq_24, data->best_chan.freq_5,
data->best_chan.freq_overall);
wpa_s->best_24_freq = data->best_chan.freq_24;
wpa_s->best_5_freq = data->best_chan.freq_5;
wpa_s->best_overall_freq = data->best_chan.freq_overall;
wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
data->best_chan.freq_5,
data->best_chan.freq_overall);
break;
case EVENT_UNPROT_DEAUTH:
wpa_supplicant_event_unprot_deauth(wpa_s,
&data->unprot_deauth);
break;
case EVENT_UNPROT_DISASSOC:
wpa_supplicant_event_unprot_disassoc(wpa_s,
&data->unprot_disassoc);
break;
case EVENT_STATION_LOW_ACK:
#ifdef CONFIG_AP
if (wpa_s->ap_iface && data)
hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
data->low_ack.addr);
#endif /* CONFIG_AP */
#ifdef CONFIG_TDLS
if (data)
wpa_tdls_disable_unreachable_link(wpa_s->wpa,
data->low_ack.addr);
#endif /* CONFIG_TDLS */
break;
case EVENT_IBSS_PEER_LOST:
#ifdef CONFIG_IBSS_RSN
ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
#endif /* CONFIG_IBSS_RSN */
break;
case EVENT_DRIVER_GTK_REKEY:
if (!ether_addr_equal(data->driver_gtk_rekey.bssid,
wpa_s->bssid))
break;
if (!wpa_s->wpa)
break;
wpa_sm_update_replay_ctr(wpa_s->wpa,
data->driver_gtk_rekey.replay_ctr);
break;
case EVENT_SCHED_SCAN_STOPPED:
wpa_s->sched_scanning = 0;
resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
wpa_supplicant_notify_scanning(wpa_s, 0);
if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
break;
/*
* If the driver stopped scanning without being requested to,
* request a new scan to continue scanning for networks.
*/
if (!wpa_s->sched_scan_stop_req &&
wpa_s->wpa_state == WPA_SCANNING) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Restart scanning after unexpected sched_scan stop event");
wpa_supplicant_req_scan(wpa_s, 1, 0);
break;
}
wpa_s->sched_scan_stop_req = 0;
/*
* Start a new sched scan to continue searching for more SSIDs
* either if timed out or PNO schedule scan is pending.
*/
if (wpa_s->sched_scan_timed_out) {
wpa_supplicant_req_sched_scan(wpa_s);
} else if (wpa_s->pno_sched_pending) {
wpa_s->pno_sched_pending = 0;
wpas_start_pno(wpa_s);
} else if (resched) {
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
break;
case EVENT_WPS_BUTTON_PUSHED:
#ifdef CONFIG_WPS
wpas_wps_start_pbc(wpa_s, NULL, 0, 0);
#endif /* CONFIG_WPS */
break;
case EVENT_AVOID_FREQUENCIES:
wpa_supplicant_notify_avoid_freq(wpa_s, data);
break;
case EVENT_CONNECT_FAILED_REASON:
#ifdef CONFIG_AP
if (!wpa_s->ap_iface || !data)
break;
hostapd_event_connect_failed_reason(
wpa_s->ap_iface->bss[0],
data->connect_failed_reason.addr,
data->connect_failed_reason.code);
#endif /* CONFIG_AP */
break;
case EVENT_NEW_PEER_CANDIDATE:
#ifdef CONFIG_MESH
if (!wpa_s->ifmsh || !data)
break;
wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
data->mesh_peer.ies,
data->mesh_peer.ie_len);
#endif /* CONFIG_MESH */
break;
case EVENT_SURVEY:
#ifdef CONFIG_AP
if (!wpa_s->ap_iface)
break;
hostapd_event_get_survey(wpa_s->ap_iface,
&data->survey_results);
#endif /* CONFIG_AP */
break;
case EVENT_ACS_CHANNEL_SELECTED:
#ifdef CONFIG_AP
#ifdef CONFIG_ACS
if (!wpa_s->ap_iface)
break;
hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
&data->acs_selected_channels);
#endif /* CONFIG_ACS */
#endif /* CONFIG_AP */
break;
case EVENT_P2P_LO_STOP:
#ifdef CONFIG_P2P
wpa_s->p2p_lo_started = 0;
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
data->p2p_lo_stop.reason_code);
#endif /* CONFIG_P2P */
break;
case EVENT_BEACON_LOSS:
if (!wpa_s->current_bss || !wpa_s->current_ssid)
break;
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
bgscan_notify_beacon_loss(wpa_s);
break;
case EVENT_EXTERNAL_AUTH:
#ifdef CONFIG_SAE
if (!wpa_s->current_ssid) {
wpa_printf(MSG_DEBUG, "SAE: current_ssid is NULL");
break;
}
sme_external_auth_trigger(wpa_s, data);
#endif /* CONFIG_SAE */
break;
#ifdef CONFIG_PASN
case EVENT_PASN_AUTH:
wpas_pasn_auth_trigger(wpa_s, &data->pasn_auth);
break;
#endif /* CONFIG_PASN */
case EVENT_PORT_AUTHORIZED:
#ifdef CONFIG_AP
if (wpa_s->ap_iface && wpa_s->ap_iface->bss[0]) {
struct sta_info *sta;
sta = ap_get_sta(wpa_s->ap_iface->bss[0],
data->port_authorized.sta_addr);
if (sta)
ap_sta_set_authorized(wpa_s->ap_iface->bss[0],
sta, 1);
else
wpa_printf(MSG_DEBUG,
"No STA info matching port authorized event found");
break;
}
#endif /* CONFIG_AP */
#ifndef CONFIG_NO_WPA
if (data->port_authorized.td_bitmap_len) {
wpa_printf(MSG_DEBUG,
"WPA3: Transition Disable bitmap from the driver event: 0x%x",
data->port_authorized.td_bitmap[0]);
wpas_transition_disable(
wpa_s, data->port_authorized.td_bitmap[0]);
}
#endif /* CONFIG_NO_WPA */
wpa_supplicant_event_port_authorized(wpa_s);
break;
case EVENT_STATION_OPMODE_CHANGED:
#ifdef CONFIG_AP
if (!wpa_s->ap_iface || !data)
break;
hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0],
data->sta_opmode.addr,
data->sta_opmode.smps_mode,
data->sta_opmode.chan_width,
data->sta_opmode.rx_nss);
#endif /* CONFIG_AP */
break;
case EVENT_UNPROT_BEACON:
wpas_event_unprot_beacon(wpa_s, &data->unprot_beacon);
break;
case EVENT_TX_WAIT_EXPIRE:
#ifdef CONFIG_DPP
wpas_dpp_tx_wait_expire(wpa_s);
#endif /* CONFIG_DPP */
#ifdef CONFIG_NAN_USD
wpas_nan_usd_tx_wait_expire(wpa_s);
#endif /* CONFIG_NAN_USD */
break;
case EVENT_TID_LINK_MAP:
if (data)
wpas_tid_link_map(wpa_s, &data->t2l_map_info);
break;
default:
wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
break;
}
}
void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
union wpa_event_data *data)
{
struct wpa_supplicant *wpa_s;
if (event != EVENT_INTERFACE_STATUS)
return;
wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
if (wpa_s && wpa_s->driver->get_ifindex) {
unsigned int ifindex;
ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
if (ifindex != data->interface_status.ifindex) {
wpa_dbg(wpa_s, MSG_DEBUG,
"interface status ifindex %d mismatch (%d)",
ifindex, data->interface_status.ifindex);
return;
}
}
#ifdef CONFIG_MATCH_IFACE
else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
struct wpa_interface *wpa_i;
wpa_i = wpa_supplicant_match_iface(
ctx, data->interface_status.ifname);
if (!wpa_i)
return;
wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
os_free(wpa_i);
}
#endif /* CONFIG_MATCH_IFACE */
if (wpa_s)
wpa_supplicant_event(wpa_s, event, data);
}
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