/*
* WPA Supplicant - Driver event processing
- * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include "common.h"
#include "eapol_supp/eapol_supp_sm.h"
-#include "wpa.h"
+#include "rsn_supp/wpa.h"
#include "eloop.h"
-#include "drivers/driver.h"
#include "config.h"
#include "l2_packet/l2_packet.h"
#include "wpa_supplicant_i.h"
+#include "driver_i.h"
#include "pcsc_funcs.h"
-#include "preauth.h"
-#include "pmksa_cache.h"
-#include "wpa_ctrl.h"
+#include "rsn_supp/preauth.h"
+#include "rsn_supp/pmksa_cache.h"
+#include "common/wpa_ctrl.h"
#include "eap_peer/eap.h"
-#include "ctrl_iface_dbus.h"
-#include "ieee802_11_defs.h"
+#include "ap/hostapd.h"
+#include "notify.h"
+#include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
#include "blacklist.h"
#include "wpas_glue.h"
#include "wps_supplicant.h"
+#include "ibss_rsn.h"
+#include "sme.h"
+#include "p2p_supplicant.h"
+#include "bgscan.h"
+#include "ap.h"
+#include "bss.h"
+#include "mlme.h"
+#include "scan.h"
static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
{
- struct wpa_ssid *ssid;
+ struct wpa_ssid *ssid, *old_ssid;
if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
return 0;
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_mark_disassoc(struct wpa_supplicant *wpa_s)
{
+ int bssid_changed;
+
+ if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
+ return;
+
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);
+ wpa_s->current_bss = NULL;
+ 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))
if (ssid->mixed_cell)
return 1;
+#ifdef CONFIG_WPS
+ if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
+ return 1;
+#endif /* CONFIG_WPS */
+
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (ssid->wep_key_len[i]) {
privacy = 1;
}
-static int wpa_supplicant_ssid_bss_match(struct wpa_ssid *ssid,
+static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
+ struct wpa_ssid *ssid,
struct wpa_scan_res *bss)
{
struct wpa_ie_data ie;
const u8 *rsn_ie, *wpa_ie;
int ret;
- ret = wpas_wps_ssid_bss_match(ssid, bss);
+ ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
if (ret >= 0)
return ret;
#ifdef CONFIG_IEEE80211W
if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
- ssid->ieee80211w == IEEE80211W_REQUIRED) {
+ ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
wpa_printf(MSG_DEBUG, " skip RSN IE - no mgmt frame "
"protection");
break;
}
-static struct wpa_scan_res *
-wpa_supplicant_select_bss_wpa(struct wpa_supplicant *wpa_s,
- struct wpa_ssid *group,
- struct wpa_ssid **selected_ssid)
+static int freq_allowed(int *freqs, int freq)
{
- struct wpa_ssid *ssid;
- struct wpa_scan_res *bss;
- size_t i;
+ int i;
+
+ if (freqs == NULL)
+ return 1;
+
+ for (i = 0; freqs[i]; i++)
+ if (freqs[i] == freq)
+ return 1;
+ return 0;
+}
+
+
+static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
+ int i, struct wpa_scan_res *bss,
+ struct wpa_ssid *group)
+{
+ const u8 *ssid_;
+ u8 wpa_ie_len, rsn_ie_len, ssid_len;
+ int wpa;
struct wpa_blacklist *e;
const u8 *ie;
+ struct wpa_ssid *ssid;
- wpa_printf(MSG_DEBUG, "Try to find WPA-enabled AP");
- for (i = 0; i < wpa_s->scan_res->num; i++) {
- const u8 *ssid_;
- u8 wpa_ie_len, rsn_ie_len, ssid_len;
- bss = wpa_s->scan_res->res[i];
+ ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
+ ssid_ = ie ? ie + 2 : (u8 *) "";
+ ssid_len = ie ? ie[1] : 0;
- ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
- ssid_ = ie ? ie + 2 : (u8 *) "";
- ssid_len = ie ? ie[1] : 0;
+ ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
+ wpa_ie_len = ie ? ie[1] : 0;
+
+ ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
+ rsn_ie_len = ie ? ie[1] : 0;
+
+ wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
+ "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
+ i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
+ wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
+ wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
+ " wps" : "");
+
+ e = wpa_blacklist_get(wpa_s, bss->bssid);
+ if (e && e->count > 1) {
+ wpa_printf(MSG_DEBUG, " skip - blacklisted");
+ return 0;
+ }
- ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
- wpa_ie_len = ie ? ie[1] : 0;
+ if (ssid_len == 0) {
+ wpa_printf(MSG_DEBUG, " skip - SSID not known");
+ return 0;
+ }
- ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
- rsn_ie_len = ie ? ie[1] : 0;
+ wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
- wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
- "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
- (int) i, MAC2STR(bss->bssid),
- wpa_ssid_txt(ssid_, ssid_len),
- wpa_ie_len, rsn_ie_len, bss->caps);
+ for (ssid = group; ssid; ssid = ssid->pnext) {
+ int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
- e = wpa_blacklist_get(wpa_s, bss->bssid);
- if (e && e->count > 1) {
- wpa_printf(MSG_DEBUG, " skip - blacklisted");
+ if (ssid->disabled) {
+ wpa_printf(MSG_DEBUG, " skip - disabled");
continue;
}
- if (wpa_ie_len == 0 && rsn_ie_len == 0) {
- wpa_printf(MSG_DEBUG, " skip - no WPA/RSN IE");
+#ifdef CONFIG_WPS
+ if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
+ wpa_printf(MSG_DEBUG, " skip - blacklisted (WPS)");
continue;
}
- for (ssid = group; ssid; ssid = ssid->pnext) {
- int check_ssid = 1;
-
- if (ssid->disabled) {
- wpa_printf(MSG_DEBUG, " skip - disabled");
- continue;
- }
+ if (wpa && ssid->ssid_len == 0 &&
+ wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
+ check_ssid = 0;
-#ifdef CONFIG_WPS
+ if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
+ /* Only allow wildcard SSID match if an AP
+ * advertises active WPS operation that matches
+ * with our mode. */
+ check_ssid = 1;
if (ssid->ssid_len == 0 &&
- wpas_wps_ssid_wildcard_ok(ssid, bss))
+ wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
check_ssid = 0;
+ }
#endif /* CONFIG_WPS */
- if (check_ssid &&
- (ssid_len != ssid->ssid_len ||
- os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
- wpa_printf(MSG_DEBUG, " skip - "
- "SSID mismatch");
- continue;
- }
+ if (check_ssid &&
+ (ssid_len != ssid->ssid_len ||
+ os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
+ wpa_printf(MSG_DEBUG, " skip - SSID mismatch");
+ continue;
+ }
- if (ssid->bssid_set &&
- os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
- {
- wpa_printf(MSG_DEBUG, " skip - "
- "BSSID mismatch");
- continue;
- }
+ if (ssid->bssid_set &&
+ os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
+ wpa_printf(MSG_DEBUG, " skip - BSSID mismatch");
+ continue;
+ }
- if (!wpa_supplicant_ssid_bss_match(ssid, bss))
- continue;
+ if (wpa && !wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
+ continue;
- wpa_printf(MSG_DEBUG, " selected WPA AP "
- MACSTR " ssid='%s'",
- MAC2STR(bss->bssid),
- wpa_ssid_txt(ssid_, ssid_len));
- *selected_ssid = ssid;
- return bss;
+ if (!wpa &&
+ !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
+ !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
+ !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
+ wpa_printf(MSG_DEBUG, " skip - non-WPA network not "
+ "allowed");
+ continue;
+ }
+
+ if (!wpa && !wpa_supplicant_match_privacy(bss, ssid)) {
+ wpa_printf(MSG_DEBUG, " skip - privacy mismatch");
+ continue;
+ }
+
+ if (!wpa && (bss->caps & IEEE80211_CAP_IBSS)) {
+ wpa_printf(MSG_DEBUG, " skip - IBSS (adhoc) "
+ "network");
+ continue;
}
+
+ if (!freq_allowed(ssid->freq_list, bss->freq)) {
+ wpa_printf(MSG_DEBUG, " skip - frequency not "
+ "allowed");
+ continue;
+ }
+
+#ifdef CONFIG_P2P
+ /*
+ * 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 */
+
+ /* Matching configuration found */
+ return ssid;
}
- return NULL;
+ /* No matching configuration found */
+ return 0;
}
-static struct wpa_scan_res *
-wpa_supplicant_select_bss_non_wpa(struct wpa_supplicant *wpa_s,
- struct wpa_ssid *group,
- struct wpa_ssid **selected_ssid)
+static struct wpa_bss *
+wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
+ struct wpa_scan_results *scan_res,
+ struct wpa_ssid *group,
+ struct wpa_ssid **selected_ssid)
{
- struct wpa_ssid *ssid;
- struct wpa_scan_res *bss;
size_t i;
- struct wpa_blacklist *e;
- const u8 *ie;
- wpa_printf(MSG_DEBUG, "Try to find non-WPA AP");
- for (i = 0; i < wpa_s->scan_res->num; i++) {
- const u8 *ssid_;
- u8 wpa_ie_len, rsn_ie_len, ssid_len;
- bss = wpa_s->scan_res->res[i];
+ wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
+ group->priority);
+
+ for (i = 0; i < scan_res->num; i++) {
+ struct wpa_scan_res *bss = scan_res->res[i];
+ const u8 *ie, *ssid;
+ u8 ssid_len;
+
+ *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
+ if (!*selected_ssid)
+ continue;
ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
- ssid_ = ie ? ie + 2 : (u8 *) "";
+ ssid = ie ? ie + 2 : (u8 *) "";
ssid_len = ie ? ie[1] : 0;
- ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
- wpa_ie_len = ie ? ie[1] : 0;
+ wpa_printf(MSG_DEBUG, " selected BSS " MACSTR " ssid='%s'",
+ MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
+ return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
+ }
+
+ return NULL;
+}
- ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
- rsn_ie_len = ie ? ie[1] : 0;
- wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
- "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
- (int) i, MAC2STR(bss->bssid),
- wpa_ssid_txt(ssid_, ssid_len),
- wpa_ie_len, rsn_ie_len, bss->caps);
+static struct wpa_bss *
+wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
+ struct wpa_scan_results *scan_res,
+ struct wpa_ssid **selected_ssid)
+{
+ struct wpa_bss *selected = NULL;
+ int prio;
- e = wpa_blacklist_get(wpa_s, bss->bssid);
- if (e && e->count > 1) {
- wpa_printf(MSG_DEBUG, " skip - blacklisted");
- continue;
+ while (selected == NULL) {
+ for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
+ selected = wpa_supplicant_select_bss(
+ wpa_s, scan_res, wpa_s->conf->pssid[prio],
+ selected_ssid);
+ if (selected)
+ break;
}
- for (ssid = group; ssid; ssid = ssid->pnext) {
- int check_ssid = ssid->ssid_len != 0;
+ if (selected == NULL && wpa_s->blacklist) {
+ wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
+ "and try again");
+ wpa_blacklist_clear(wpa_s);
+ wpa_s->blacklist_cleared++;
+ } else if (selected == NULL)
+ break;
+ }
+
+ return selected;
+}
- if (ssid->disabled) {
- wpa_printf(MSG_DEBUG, " skip - disabled");
- continue;
- }
+
+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->conf)) {
+ /*
+ * No networks are enabled; short-circuit request so
+ * we don't wait timeout seconds before transitioning
+ * to INACTIVE state.
+ */
+ wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
+ return;
+ }
+ wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
+}
+
+
+void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *selected,
+ struct wpa_ssid *ssid)
+{
+ if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
+ wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
+ "PBC session overlap");
+#ifdef CONFIG_P2P
+ if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
+ return;
+#endif /* CONFIG_P2P */
#ifdef CONFIG_WPS
- if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
- /* Only allow wildcard SSID match if an AP
- * advertises active WPS operation that matches
- * with our mode. */
- check_ssid = 1;
- if (ssid->ssid_len == 0 &&
- wpas_wps_ssid_wildcard_ok(ssid, bss))
- check_ssid = 0;
- }
+ wpas_wps_cancel(wpa_s);
#endif /* CONFIG_WPS */
+ return;
+ }
- if (check_ssid &&
- (ssid_len != ssid->ssid_len ||
- os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
- wpa_printf(MSG_DEBUG, " skip - "
- "SSID mismatch");
- continue;
- }
+ /*
+ * 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 ||
+ (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
+ (wpa_s->wpa_state != WPA_ASSOCIATING ||
+ os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
+ 0))) {
+ if (wpa_supplicant_scard_init(wpa_s, ssid)) {
+ wpa_supplicant_req_new_scan(wpa_s, 10, 0);
+ return;
+ }
+ wpa_supplicant_associate(wpa_s, selected, ssid);
+ } else {
+ wpa_printf(MSG_DEBUG, "Already associated with the selected "
+ "AP");
+ }
+}
- if (ssid->bssid_set &&
- os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
- {
- wpa_printf(MSG_DEBUG, " skip - "
- "BSSID mismatch");
- continue;
- }
-
- if (!(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
- !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
- !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA))
- {
- wpa_printf(MSG_DEBUG, " skip - "
- "non-WPA network not allowed");
- continue;
- }
- if ((ssid->key_mgmt &
- (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
- WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_FT_PSK |
- WPA_KEY_MGMT_IEEE8021X_SHA256 |
- WPA_KEY_MGMT_PSK_SHA256)) &&
- (wpa_ie_len != 0 || rsn_ie_len != 0)) {
- wpa_printf(MSG_DEBUG, " skip - "
- "WPA network");
- continue;
- }
+static struct wpa_ssid *
+wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
+{
+ int prio;
+ struct wpa_ssid *ssid;
- if (!wpa_supplicant_match_privacy(bss, ssid)) {
- wpa_printf(MSG_DEBUG, " skip - "
- "privacy mismatch");
+ for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
+ for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
+ {
+ if (ssid->disabled)
continue;
- }
+ if (ssid->mode == IEEE80211_MODE_IBSS ||
+ ssid->mode == IEEE80211_MODE_AP)
+ return ssid;
+ }
+ }
+ return NULL;
+}
- if (bss->caps & IEEE80211_CAP_IBSS) {
- wpa_printf(MSG_DEBUG, " skip - "
- "IBSS (adhoc) network");
- continue;
- }
- wpa_printf(MSG_DEBUG, " selected non-WPA AP "
- MACSTR " ssid='%s'",
- MAC2STR(bss->bssid),
- wpa_ssid_txt(ssid_, ssid_len));
- *selected_ssid = ssid;
- return bss;
- }
+/* 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_scan_results *scan_res)
+{
+ int i;
+
+ if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
+ return;
+
+ for (i = scan_res->num - 1; i >= 0; i--) {
+ const u8 *ssid, *rsn;
+ struct wpa_scan_res *r;
+
+ r = scan_res->res[i];
+
+ ssid = wpa_scan_get_ie(r, WLAN_EID_SSID);
+ if (ssid == NULL)
+ continue;
+
+ rsn = wpa_scan_get_ie(r, WLAN_EID_RSN);
+ if (rsn == NULL)
+ continue;
+
+ rsn_preauth_scan_result(wpa_s->wpa, r->bssid, ssid, rsn);
}
- return NULL;
}
-static struct wpa_scan_res *
-wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, struct wpa_ssid *group,
- struct wpa_ssid **selected_ssid)
+static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *selected,
+ struct wpa_ssid *ssid,
+ struct wpa_scan_results *scan_res)
{
- struct wpa_scan_res *selected;
+ size_t i;
+ struct wpa_scan_res *current_bss = NULL;
+ int min_diff;
+
+ 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 */
+
+ for (i = 0; i < scan_res->num; i++) {
+ struct wpa_scan_res *res = scan_res->res[i];
+ const u8 *ie;
+ if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
+ continue;
- wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
- group->priority);
+ ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
+ if (ie == NULL)
+ continue;
+ if (ie[1] != wpa_s->current_ssid->ssid_len ||
+ os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
+ continue;
+ current_bss = res;
+ break;
+ }
+
+ if (!current_bss)
+ return 1; /* current BSS not seen in scan results */
+
+ wpa_printf(MSG_DEBUG, "Considering within-ESS reassociation");
+ wpa_printf(MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
+ MAC2STR(current_bss->bssid), current_bss->level);
+ wpa_printf(MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
+ MAC2STR(selected->bssid), selected->level);
+
+ if (wpa_s->current_ssid->bssid_set &&
+ os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
+ 0) {
+ wpa_printf(MSG_DEBUG, "Allow reassociation - selected BSS has "
+ "preferred BSSID");
+ return 1;
+ }
- /* First, try to find WPA-enabled AP */
- selected = wpa_supplicant_select_bss_wpa(wpa_s, group, selected_ssid);
- if (selected)
- return selected;
+ min_diff = 2;
+ if (current_bss->level < 0) {
+ if (current_bss->level < -85)
+ min_diff = 1;
+ else if (current_bss->level < -80)
+ min_diff = 2;
+ else if (current_bss->level < -75)
+ min_diff = 3;
+ else if (current_bss->level < -70)
+ min_diff = 4;
+ else
+ min_diff = 5;
+ }
+ if (abs(current_bss->level - selected->level) < min_diff) {
+ wpa_printf(MSG_DEBUG, "Skip roam - too small difference in "
+ "signal level");
+ return 0;
+ }
- /* If no WPA-enabled AP found, try to find non-WPA AP, if configuration
- * allows this. */
- return wpa_supplicant_select_bss_non_wpa(wpa_s, group, selected_ssid);
+ return 1;
}
-static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s)
+static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
{
- int prio, timeout;
- struct wpa_scan_res *selected = NULL;
+ struct wpa_bss *selected;
struct wpa_ssid *ssid = NULL;
+ struct wpa_scan_results *scan_res;
+ int ap = 0;
+
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface)
+ ap = 1;
+#endif /* CONFIG_AP */
+
+ wpa_supplicant_notify_scanning(wpa_s, 0);
- if (wpa_supplicant_get_scan_results(wpa_s) < 0) {
- if (wpa_s->conf->ap_scan == 2)
+ scan_res = wpa_supplicant_get_scan_results(wpa_s,
+ data ? &data->scan_info :
+ NULL, 1);
+ if (scan_res == NULL) {
+ if (wpa_s->conf->ap_scan == 2 || ap)
return;
wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
"scanning again");
- timeout = 1;
- goto req_scan;
+ wpa_supplicant_req_new_scan(wpa_s, 1, 0);
+ return;
}
- /*
- * Don't post the results if this was the initial cached
- * and there were no results.
- */
- if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1 &&
- wpa_s->scan_res->num == 0) {
- wpa_msg(wpa_s, MSG_DEBUG, "Cached scan results are "
- "empty - not posting");
- } else {
- wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
- wpa_supplicant_dbus_notify_scan_results(wpa_s);
- wpas_wps_notify_scan_results(wpa_s);
+ if (wpa_s->scan_res_handler) {
+ wpa_s->scan_res_handler(wpa_s, scan_res);
+ wpa_s->scan_res_handler = NULL;
+ wpa_scan_results_free(scan_res);
+ return;
}
- if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)) ||
- wpa_s->disconnected)
+ if (ap) {
+ wpa_printf(MSG_DEBUG, "Ignore scan results in AP mode");
+ wpa_scan_results_free(scan_res);
return;
+ }
- while (selected == NULL) {
- for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
- selected = wpa_supplicant_select_bss(
- wpa_s, wpa_s->conf->pssid[prio], &ssid);
- if (selected)
- break;
- }
+ wpa_printf(MSG_DEBUG, "New scan results available");
+ wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
+ wpas_notify_scan_results(wpa_s);
- if (selected == NULL && wpa_s->blacklist) {
- wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
- "and try again");
- wpa_blacklist_clear(wpa_s);
- } else if (selected == NULL) {
- break;
- }
+ wpas_notify_scan_done(wpa_s, 1);
+
+ if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
+ wpa_scan_results_free(scan_res);
+ return;
}
- if (selected) {
- if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
- wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
- "PBC session overlap");
- timeout = 10;
- goto req_scan;
- }
+ if (wpa_s->disconnected) {
+ wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
+ wpa_scan_results_free(scan_res);
+ return;
+ }
- /* 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 ||
- (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
- (wpa_s->wpa_state != WPA_ASSOCIATING ||
- os_memcmp(selected->bssid, wpa_s->pending_bssid,
- ETH_ALEN) != 0))) {
- if (wpa_supplicant_scard_init(wpa_s, ssid)) {
- wpa_supplicant_req_scan(wpa_s, 10, 0);
- return;
- }
- wpa_supplicant_associate(wpa_s, selected, ssid);
- } else {
- wpa_printf(MSG_DEBUG, "Already associated with the "
- "selected AP.");
- }
- rsn_preauth_scan_results(wpa_s->wpa, wpa_s->scan_res);
- } else {
- wpa_printf(MSG_DEBUG, "No suitable AP found.");
- timeout = 5;
- goto req_scan;
+ if (bgscan_notify_scan(wpa_s, scan_res) == 1) {
+ wpa_scan_results_free(scan_res);
+ return;
}
- return;
+ wpa_supplicant_rsn_preauth_scan_results(wpa_s, scan_res);
-req_scan:
- if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1) {
- /*
- * Quick recovery if the initial scan results were not
- * complete when fetched before the first scan request.
- */
- wpa_s->scan_res_tried++;
- timeout = 0;
+ selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
+
+ if (selected) {
+ int skip;
+ skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
+ scan_res);
+ wpa_scan_results_free(scan_res);
+ if (skip)
+ return;
+ wpa_supplicant_connect(wpa_s, selected, ssid);
+ } else {
+ wpa_scan_results_free(scan_res);
+ wpa_printf(MSG_DEBUG, "No suitable network found");
+ ssid = wpa_supplicant_pick_new_network(wpa_s);
+ if (ssid) {
+ wpa_printf(MSG_DEBUG, "Setup a new network");
+ wpa_supplicant_associate(wpa_s, NULL, ssid);
+ } else {
+ int timeout_sec = 5;
+ int timeout_usec = 0;
+#ifdef CONFIG_P2P
+ if (wpa_s->p2p_in_provisioning) {
+ /*
+ * Use shorter wait during P2P Provisioning
+ * state to speed up group formation.
+ */
+ timeout_sec = 0;
+ timeout_usec = 250000;
+ }
+#endif /* CONFIG_P2P */
+ wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
+ timeout_usec);
+ }
}
- wpa_supplicant_req_scan(wpa_s, timeout, 0);
}
#endif /* CONFIG_NO_SCAN_PROCESSING */
-static void wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
- union wpa_event_data *data)
+static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
{
int l, len, found = 0, wpa_found, rsn_found;
- u8 *p;
+ const u8 *p;
wpa_printf(MSG_DEBUG, "Association info event");
if (data->assoc_info.req_ies)
wpa_hexdump(MSG_DEBUG, "beacon_ies",
data->assoc_info.beacon_ies,
data->assoc_info.beacon_ies_len);
+ if (data->assoc_info.freq)
+ wpa_printf(MSG_DEBUG, "freq=%u MHz", data->assoc_info.freq);
p = data->assoc_info.req_ies;
l = data->assoc_info.req_ies_len;
if (!found && data->assoc_info.req_ies)
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
+#ifdef CONFIG_IEEE80211R
+#ifdef CONFIG_SME
+ if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
+ u8 bssid[ETH_ALEN];
+ if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
+ wpa_ft_validate_reassoc_resp(wpa_s->wpa,
+ data->assoc_info.resp_ies,
+ data->assoc_info.resp_ies_len,
+ bssid) < 0) {
+ wpa_printf(MSG_DEBUG, "FT: Validation of "
+ "Reassociation Response failed");
+ wpa_supplicant_deauthenticate(
+ wpa_s, WLAN_REASON_INVALID_IE);
+ return -1;
+ }
+ }
+
+ p = data->assoc_info.resp_ies;
+ l = data->assoc_info.resp_ies_len;
+
+#ifdef CONFIG_WPS_STRICT
+ if (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_printf(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 */
+
+ wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
+ data->assoc_info.resp_ies_len);
+#endif /* CONFIG_IEEE80211R */
+
/* WPA/RSN IE from Beacon/ProbeResp */
p = data->assoc_info.beacon_ies;
l = data->assoc_info.beacon_ies_len;
wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
if (wpa_found || rsn_found)
wpa_s->ap_ies_from_associnfo = 1;
+
+ wpa_s->assoc_freq = data->assoc_info.freq;
+
+ return 0;
}
union wpa_event_data *data)
{
u8 bssid[ETH_ALEN];
- int ft_completed = wpa_ft_is_completed(wpa_s->wpa);
+ int ft_completed;
+ int bssid_changed;
+ struct wpa_driver_capa capa;
+
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface) {
+ hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
+ data->assoc_info.addr,
+ data->assoc_info.req_ies,
+ data->assoc_info.req_ies_len);
+ return;
+ }
+#endif /* CONFIG_AP */
- if (data)
- wpa_supplicant_event_associnfo(wpa_s, data);
+ ft_completed = wpa_ft_is_completed(wpa_s->wpa);
+ if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
+ return;
wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
- if (wpa_s->use_client_mlme)
+ if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
- if (wpa_s->use_client_mlme ||
+ if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) ||
(wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
wpa_msg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
MACSTR, MAC2STR(bssid));
+ bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
+ if (bssid_changed)
+ wpas_notify_bssid_changed(wpa_s);
+
if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
wpa_clear_keys(wpa_s, bssid);
}
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
return;
}
+ if (wpa_s->current_ssid) {
+ struct wpa_bss *bss = NULL;
+ struct wpa_ssid *ssid = wpa_s->current_ssid;
+ if (ssid->ssid_len > 0)
+ bss = wpa_bss_get(wpa_s, bssid,
+ ssid->ssid, ssid->ssid_len);
+ if (!bss)
+ bss = wpa_bss_get_bssid(wpa_s, bssid);
+ if (bss)
+ wpa_s->current_bss = bss;
+ }
}
+#ifdef CONFIG_SME
+ os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
+ wpa_s->sme.prev_bssid_set = 1;
+#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
wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
}
wpa_sm_notify_assoc(wpa_s->wpa, bssid);
- l2_packet_notify_auth_start(wpa_s->l2);
+ if (wpa_s->l2)
+ l2_packet_notify_auth_start(wpa_s->l2);
/*
* Set portEnabled first to FALSE in order to get EAP state machine out
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->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
+ (wpa_s->current_ssid &&
+ wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
wpa_supplicant_cancel_auth_timeout(wpa_s);
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
} else if (!ft_completed) {
}
wpa_supplicant_cancel_scan(wpa_s);
- if (wpa_s->driver_4way_handshake &&
+ if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
/*
* We are done; the driver will take care of RSN 4-way
eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
}
+
+ if (wpa_s->pending_eapol_rx) {
+ struct os_time now, age;
+ os_get_time(&now);
+ os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
+ if (age.sec == 0 && age.usec < 100000 &&
+ os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
+ 0) {
+ wpa_printf(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));
+ }
+ wpabuf_free(wpa_s->pending_eapol_rx);
+ wpa_s->pending_eapol_rx = NULL;
+ }
+
+#ifdef CONFIG_BGSCAN
+ if (wpa_s->current_ssid != wpa_s->bgscan_ssid) {
+ bgscan_deinit(wpa_s);
+ if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) {
+ if (bgscan_init(wpa_s, wpa_s->current_ssid)) {
+ wpa_printf(MSG_DEBUG, "Failed to initialize "
+ "bgscan");
+ /*
+ * Live without bgscan; it is only used as a
+ * roaming optimization, so the initial
+ * connection is not affected.
+ */
+ } else
+ wpa_s->bgscan_ssid = wpa_s->current_ssid;
+ } else
+ wpa_s->bgscan_ssid = NULL;
+ }
+#endif /* CONFIG_BGSCAN */
+
+ if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
+ wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
+ wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
+ capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
+ /* Set static WEP keys again */
+ wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
+ }
}
-static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s)
+static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
+ u16 reason_code)
{
const u8 *bssid;
+#ifdef CONFIG_SME
+ int authenticating;
+ u8 prev_pending_bssid[ETH_ALEN];
+
+ authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
+ os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
+#endif /* CONFIG_SME */
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
/*
wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
"pre-shared key may be incorrect");
}
- if (wpa_s->wpa_state >= WPA_ASSOCIATED)
- wpa_supplicant_req_scan(wpa_s, 0, 100000);
+ if (!wpa_s->auto_reconnect_disabled ||
+ wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
+ wpa_printf(MSG_DEBUG, "WPA: Auto connect enabled: try to "
+ "reconnect (wps=%d)",
+ wpa_s->key_mgmt == WPA_KEY_MGMT_WPS);
+ if (wpa_s->wpa_state >= WPA_ASSOCIATING)
+ wpa_supplicant_req_scan(wpa_s, 0, 100000);
+ } else {
+ wpa_printf(MSG_DEBUG, "WPA: Auto connect disabled: do not try "
+ "to re-connect");
+ wpa_s->reassociate = 0;
+ wpa_s->disconnected = 1;
+ }
bssid = wpa_s->bssid;
if (is_zero_ether_addr(bssid))
bssid = wpa_s->pending_bssid;
wpa_blacklist_add(wpa_s, bssid);
wpa_sm_notify_disassoc(wpa_s->wpa);
- wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "- Disconnect event - "
- "remove keys");
+ wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
+ " reason=%d",
+ MAC2STR(bssid), reason_code);
if (wpa_supplicant_dynamic_keys(wpa_s)) {
+ wpa_printf(MSG_DEBUG, "Disconnect event - remove keys");
wpa_s->keys_cleared = 0;
wpa_clear_keys(wpa_s, wpa_s->bssid);
}
wpa_supplicant_mark_disassoc(wpa_s);
+ bgscan_deinit(wpa_s);
+ wpa_s->bgscan_ssid = NULL;
+#ifdef CONFIG_SME
+ if (authenticating &&
+ (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
+ /*
+ * mac80211-workaround to force deauth on failed auth cmd,
+ * requires us to remain in authenticating state to allow the
+ * second authentication attempt to be continued properly.
+ */
+ wpa_printf(MSG_DEBUG, "SME: Allow pending authentication to "
+ "proceed after disconnection event");
+ wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
+ os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
+ }
+#endif /* CONFIG_SME */
}
}
+#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)
wpa_supplicant_mark_disassoc(wpa_s);
l2_packet_deinit(wpa_s->l2);
wpa_s->l2 = NULL;
+#ifdef CONFIG_TERMINATE_ONLASTIF
+ /* check if last interface */
+ if (!any_interfaces(wpa_s->global->ifaces))
+ eloop_terminate();
+#endif /* CONFIG_TERMINATE_ONLASTIF */
break;
}
}
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) < 0) {
+ 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 */
-void wpa_supplicant_event(void *ctx, wpa_event_type event,
+#ifdef CONFIG_IBSS_RSN
+static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
+{
+ if (data == NULL)
+ return;
+ ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
+}
+#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_printf(MSG_DEBUG, "FT: Received FT Action Response: STA " MACSTR
+ " TargetAP " MACSTR " status %u",
+ MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
+
+ if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
+ wpa_printf(MSG_DEBUG, "FT: Foreign STA Address " MACSTR
+ " in FT Action Response", MAC2STR(sta_addr));
+ return;
+ }
+
+ if (status) {
+ wpa_printf(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 */
+
+
+void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
union wpa_event_data *data)
{
struct wpa_supplicant *wpa_s = ctx;
+ u16 reason_code = 0;
+
+ if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
+ event != EVENT_INTERFACE_ENABLED &&
+ event != EVENT_INTERFACE_STATUS) {
+ wpa_printf(MSG_DEBUG, "Ignore event %d while interface is "
+ "disabled", event);
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "Event %d received on interface %s",
+ event, wpa_s->ifname);
switch (event) {
+ case EVENT_AUTH:
+ sme_event_auth(wpa_s, data);
+ break;
case EVENT_ASSOC:
wpa_supplicant_event_assoc(wpa_s, data);
break;
case EVENT_DISASSOC:
- wpa_supplicant_event_disassoc(wpa_s);
+ wpa_printf(MSG_DEBUG, "Disassociation notification");
+ if (data) {
+ wpa_printf(MSG_DEBUG, " * reason %u",
+ data->disassoc_info.reason_code);
+ if (data->disassoc_info.addr)
+ wpa_printf(MSG_DEBUG, " * address " MACSTR,
+ MAC2STR(data->disassoc_info.addr));
+ }
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
+ hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
+ data->disassoc_info.addr);
+ break;
+ }
+#endif /* CONFIG_AP */
+ if (data) {
+ reason_code = data->disassoc_info.reason_code;
+ wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
+ data->disassoc_info.ie,
+ data->disassoc_info.ie_len);
+#ifdef CONFIG_P2P
+ wpas_p2p_disassoc_notif(
+ wpa_s, data->disassoc_info.addr, reason_code,
+ data->disassoc_info.ie,
+ data->disassoc_info.ie_len);
+#endif /* CONFIG_P2P */
+ }
+ if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
+ sme_event_disassoc(wpa_s, data);
+ /* fall through */
+ case EVENT_DEAUTH:
+ if (event == EVENT_DEAUTH) {
+ wpa_printf(MSG_DEBUG, "Deauthentication notification");
+ if (data) {
+ reason_code = data->deauth_info.reason_code;
+ wpa_printf(MSG_DEBUG, " * reason %u",
+ data->deauth_info.reason_code);
+ if (data->deauth_info.addr) {
+ wpa_printf(MSG_DEBUG, " * address "
+ MACSTR,
+ MAC2STR(data->deauth_info.
+ addr));
+ }
+ wpa_hexdump(MSG_DEBUG,
+ "Deauthentication frame IE(s)",
+ data->deauth_info.ie,
+ data->deauth_info.ie_len);
+#ifdef CONFIG_P2P
+ wpas_p2p_deauth_notif(
+ wpa_s, data->deauth_info.addr,
+ reason_code,
+ data->deauth_info.ie,
+ data->deauth_info.ie_len);
+#endif /* CONFIG_P2P */
+ }
+ }
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface && data && data->deauth_info.addr) {
+ hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
+ data->deauth_info.addr);
+ break;
+ }
+#endif /* CONFIG_AP */
+ wpa_supplicant_event_disassoc(wpa_s, reason_code);
break;
case EVENT_MICHAEL_MIC_FAILURE:
wpa_supplicant_event_michael_mic_failure(wpa_s, data);
break;
#ifndef CONFIG_NO_SCAN_PROCESSING
case EVENT_SCAN_RESULTS:
- wpa_supplicant_event_scan_results(wpa_s);
+ wpa_supplicant_event_scan_results(wpa_s, data);
break;
#endif /* CONFIG_NO_SCAN_PROCESSING */
case EVENT_ASSOCINFO:
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:
+ sme_event_assoc_reject(wpa_s, data);
+ break;
+ case EVENT_AUTH_TIMED_OUT:
+ sme_event_auth_timed_out(wpa_s, data);
+ break;
+ case EVENT_ASSOC_TIMED_OUT:
+ sme_event_assoc_timed_out(wpa_s, data);
+ break;
+#ifdef CONFIG_AP
+ case EVENT_TX_STATUS:
+ wpa_printf(MSG_DEBUG, "EVENT_TX_STATUS on %s dst=" MACSTR
+ " type=%d stype=%d pending_dst=" MACSTR,
+ wpa_s->ifname, MAC2STR(data->tx_status.dst),
+ data->tx_status.type, data->tx_status.stype,
+ MAC2STR(wpa_s->parent->pending_action_dst));
+ if (wpa_s->ap_iface == NULL) {
+#ifdef CONFIG_P2P
+ if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
+ data->tx_status.stype == WLAN_FC_STYPE_ACTION)
+ wpas_send_action_tx_status(
+ wpa_s, data->tx_status.dst,
+ data->tx_status.data,
+ data->tx_status.data_len,
+ data->tx_status.ack);
+#endif /* CONFIG_P2P */
+ break;
+ }
+#ifdef CONFIG_P2P
+ /*
+ * Catch TX status events for Action frames we sent via group
+ * interface in GO mode.
+ */
+ if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
+ data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
+ os_memcmp(wpa_s->parent->pending_action_dst,
+ data->tx_status.dst, ETH_ALEN) == 0) {
+ wpas_send_action_tx_status(
+ wpa_s->parent, data->tx_status.dst,
+ data->tx_status.data,
+ data->tx_status.data_len,
+ data->tx_status.ack);
+ break;
+ }
+#endif /* CONFIG_P2P */
+ 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;
+ }
+ break;
+ case EVENT_RX_FROM_UNKNOWN:
+ if (wpa_s->ap_iface == NULL)
+ break;
+ ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.frame,
+ data->rx_from_unknown.len);
+ break;
+ case EVENT_RX_MGMT:
+ if (wpa_s->ap_iface == NULL) {
+#ifdef CONFIG_P2P
+ u16 fc, stype;
+ const struct ieee80211_mgmt *mgmt;
+ mgmt = (const struct ieee80211_mgmt *)
+ data->rx_mgmt.frame;
+ fc = le_to_host16(mgmt->frame_control);
+ stype = WLAN_FC_GET_STYPE(fc);
+ if (stype == WLAN_FC_STYPE_PROBE_REQ &&
+ data->rx_mgmt.frame_len > 24) {
+ const u8 *src = mgmt->sa;
+ const u8 *ie = mgmt->u.probe_req.variable;
+ size_t ie_len = data->rx_mgmt.frame_len -
+ (mgmt->u.probe_req.variable -
+ data->rx_mgmt.frame);
+ wpas_p2p_probe_req_rx(wpa_s, src, ie, ie_len);
+ break;
+ }
+#endif /* CONFIG_P2P */
+ wpa_printf(MSG_DEBUG, "AP: ignore received management "
+ "frame in non-AP mode");
+ break;
+ }
+ ap_mgmt_rx(wpa_s, &data->rx_mgmt);
+ break;
+#endif /* CONFIG_AP */
+ case EVENT_RX_ACTION:
+ wpa_printf(MSG_DEBUG, "Received Action frame: SA=" MACSTR
+ " Category=%u DataLen=%d freq=%d MHz",
+ MAC2STR(data->rx_action.sa),
+ data->rx_action.category, (int) data->rx_action.len,
+ data->rx_action.freq);
+#ifdef CONFIG_IEEE80211R
+ if (data->rx_action.category == WLAN_ACTION_FT) {
+ ft_rx_action(wpa_s, data->rx_action.data,
+ data->rx_action.len);
+ break;
+ }
+#endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_P2P
+ wpas_p2p_rx_action(wpa_s, data->rx_action.da,
+ data->rx_action.sa,
+ data->rx_action.bssid,
+ data->rx_action.category,
+ data->rx_action.data,
+ data->rx_action.len, data->rx_action.freq);
+#endif /* CONFIG_P2P */
+ break;
+#ifdef CONFIG_P2P
+ case EVENT_REMAIN_ON_CHANNEL:
+ wpas_p2p_remain_on_channel_cb(
+ wpa_s, data->remain_on_channel.freq,
+ data->remain_on_channel.duration);
+ break;
+ case EVENT_CANCEL_REMAIN_ON_CHANNEL:
+ wpas_p2p_cancel_remain_on_channel_cb(
+ wpa_s, data->remain_on_channel.freq);
+ break;
+ case EVENT_RX_PROBE_REQ:
+ wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
+ data->rx_probe_req.ie,
+ data->rx_probe_req.ie_len);
+ break;
+#endif /* CONFIG_P2P */
+#ifdef CONFIG_CLIENT_MLME
+ case EVENT_MLME_RX: {
+ struct ieee80211_rx_status rx_status;
+ os_memset(&rx_status, 0, sizeof(rx_status));
+ rx_status.freq = data->mlme_rx.freq;
+ rx_status.channel = data->mlme_rx.channel;
+ rx_status.ssi = data->mlme_rx.ssi;
+ ieee80211_sta_rx(wpa_s, data->mlme_rx.buf, data->mlme_rx.len,
+ &rx_status);
+ break;
+ }
+#endif /* CONFIG_CLIENT_MLME */
+ case EVENT_EAPOL_RX:
+ wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
+ data->eapol_rx.data,
+ data->eapol_rx.data_len);
+ break;
+ case EVENT_SIGNAL_CHANGE:
+ bgscan_notify_signal_change(
+ wpa_s, data->signal_change.above_threshold,
+ data->signal_change.current_signal,
+ data->signal_change.current_noise,
+ data->signal_change.current_txrate);
+ break;
+ case EVENT_INTERFACE_ENABLED:
+ wpa_printf(MSG_DEBUG, "Interface was enabled");
+ if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
+#ifdef CONFIG_AP
+ if (!wpa_s->ap_iface) {
+ wpa_supplicant_set_state(wpa_s,
+ WPA_DISCONNECTED);
+ 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_printf(MSG_DEBUG, "Interface was disabled");
+ wpa_supplicant_mark_disassoc(wpa_s);
+ wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
+ break;
+ case EVENT_CHANNEL_LIST_CHANGED:
+#ifdef CONFIG_P2P
+ wpas_p2p_update_channel_list(wpa_s);
+#endif /* CONFIG_P2P */
+ break;
default:
wpa_printf(MSG_INFO, "Unknown event %d", event);
break;
projects / libeap.git / blobdiff