#include "eapol_supp/eapol_supp_sm.h"
#include "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 "eap_peer/eap.h"
-#include "ctrl_iface_dbus.h"
+#include "notify.h"
#include "ieee802_11_defs.h"
#include "blacklist.h"
#include "wpas_glue.h"
+#include "wps_supplicant.h"
+#include "ibss_rsn.h"
+#include "sme.h"
+#include "bgscan.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;
"AP");
if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
WPA_KEY_MGMT_WPA_NONE |
- WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X))
- {
+ WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
+ WPA_KEY_MGMT_PSK_SHA256 |
+ WPA_KEY_MGMT_IEEE8021X_SHA256)) {
u8 wpa_ie[80];
size_t wpa_ie_len = sizeof(wpa_ie);
wpa_supplicant_set_suites(wpa_s, NULL, 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_mark_disassoc(struct wpa_supplicant *wpa_s)
{
+ int bssid_changed;
+
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);
+ 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_s->key_mgmt == WPA_KEY_MGMT_PSK ||
- wpa_s->key_mgmt == WPA_KEY_MGMT_FT_PSK)
+ if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
wpa_s->ap_ies_from_associnfo = 0;
}
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;
int proto_match = 0;
const u8 *rsn_ie, *wpa_ie;
+ int ret;
+
+ ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
+ if (ret >= 0)
+ return ret;
rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
static struct wpa_scan_res *
-wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, struct wpa_ssid *group,
- struct wpa_ssid **selected_ssid)
+wpa_supplicant_select_bss_wpa(struct wpa_supplicant *wpa_s,
+ struct wpa_ssid *group,
+ struct wpa_ssid **selected_ssid)
{
struct wpa_ssid *ssid;
- struct wpa_scan_res *bss, *selected = NULL;
+ struct wpa_scan_res *bss;
size_t i;
struct wpa_blacklist *e;
const u8 *ie;
- wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
- group->priority);
-
- bss = NULL;
- ssid = NULL;
- /* First, try to find WPA-enabled AP */
wpa_printf(MSG_DEBUG, "Try to find WPA-enabled AP");
- for (i = 0; i < wpa_s->scan_res->num && !selected; i++) {
+ 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];
(int) i, MAC2STR(bss->bssid),
wpa_ssid_txt(ssid_, ssid_len),
wpa_ie_len, rsn_ie_len, bss->caps);
+
e = wpa_blacklist_get(wpa_s, bss->bssid);
if (e && e->count > 1) {
wpa_printf(MSG_DEBUG, " skip - blacklisted");
continue;
}
+ if (ssid_len == 0) {
+ wpa_printf(MSG_DEBUG, " skip - SSID not known");
+ continue;
+ }
+
if (wpa_ie_len == 0 && rsn_ie_len == 0) {
wpa_printf(MSG_DEBUG, " skip - no WPA/RSN IE");
continue;
}
for (ssid = group; ssid; ssid = ssid->pnext) {
+ int check_ssid = 1;
+
if (ssid->disabled) {
wpa_printf(MSG_DEBUG, " skip - disabled");
continue;
}
- if (ssid_len != ssid->ssid_len ||
- os_memcmp(ssid_, ssid->ssid, ssid_len) != 0) {
+
+#ifdef CONFIG_WPS
+ if (ssid->ssid_len == 0 &&
+ 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 (ssid->bssid_set &&
os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
{
"BSSID mismatch");
continue;
}
- if (wpa_supplicant_ssid_bss_match(ssid, bss)) {
- selected = bss;
- *selected_ssid = ssid;
- wpa_printf(MSG_DEBUG, " selected WPA AP "
- MACSTR " ssid='%s'",
- MAC2STR(bss->bssid),
- wpa_ssid_txt(ssid_, ssid_len));
- break;
- }
+
+ if (!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 no WPA-enabled AP found, try to find non-WPA AP, if configuration
- * allows this. */
+ return NULL;
+}
+
+
+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)
+{
+ 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 && !selected; i++) {
+ 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];
(int) i, MAC2STR(bss->bssid),
wpa_ssid_txt(ssid_, ssid_len),
wpa_ie_len, rsn_ie_len, bss->caps);
+
e = wpa_blacklist_get(wpa_s, bss->bssid);
if (e && e->count > 1) {
wpa_printf(MSG_DEBUG, " skip - blacklisted");
continue;
}
+
+ if (ssid_len == 0) {
+ wpa_printf(MSG_DEBUG, " skip - SSID not known");
+ continue;
+ }
+
for (ssid = group; ssid; ssid = ssid->pnext) {
+ int check_ssid = ssid->ssid_len != 0;
+
if (ssid->disabled) {
wpa_printf(MSG_DEBUG, " skip - disabled");
continue;
}
- if (ssid->ssid_len != 0 &&
+
+#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(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 - "
"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 - "
continue;
}
- if ((ssid->key_mgmt &
- (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK)) &&
+ 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;
}
- selected = bss;
- *selected_ssid = ssid;
wpa_printf(MSG_DEBUG, " selected non-WPA AP "
MACSTR " ssid='%s'",
MAC2STR(bss->bssid),
wpa_ssid_txt(ssid_, ssid_len));
- break;
+ *selected_ssid = ssid;
+ return bss;
}
}
- return selected;
+ return NULL;
}
-static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s)
+static struct wpa_scan_res *
+wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, struct wpa_ssid *group,
+ struct wpa_ssid **selected_ssid)
{
- int prio, timeout;
- struct wpa_scan_res *selected = NULL;
- struct wpa_ssid *ssid = NULL;
+ struct wpa_scan_res *selected;
- if (wpa_supplicant_get_scan_results(wpa_s) < 0) {
- if (wpa_s->conf->ap_scan == 2)
- return;
- wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
- "scanning again");
- timeout = 1;
- goto req_scan;
- }
+ wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
+ group->priority);
- wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
+ /* First, try to find WPA-enabled AP */
+ selected = wpa_supplicant_select_bss_wpa(wpa_s, group, selected_ssid);
+ if (selected)
+ return selected;
- wpa_supplicant_dbus_notify_scan_results(wpa_s);
+ /* 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);
+}
- if (wpa_s->conf->ap_scan == 2 || wpa_s->disconnected)
- return;
+
+static struct wpa_scan_res *
+wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
+ struct wpa_ssid **selected_ssid)
+{
+ struct wpa_scan_res *selected = NULL;
+ int prio;
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);
+ wpa_s, wpa_s->conf->pssid[prio],
+ selected_ssid);
if (selected)
break;
}
wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
"and try again");
wpa_blacklist_clear(wpa_s);
- } else if (selected == NULL) {
+ wpa_s->blacklist_cleared++;
+ } else if (selected == NULL)
break;
- }
}
- if (selected) {
- /* 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;
- }
+ return selected;
+}
- return;
-req_scan:
+static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
+ int timeout)
+{
if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1) {
/*
* Quick recovery if the initial scan results were not
*/
wpa_s->scan_res_tried++;
timeout = 0;
+ } else 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, 0);
}
+
+
+static void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
+ struct wpa_scan_res *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");
+ wpa_supplicant_req_new_scan(wpa_s, 10);
+ 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_new_scan(wpa_s, 10);
+ 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);
+}
+
+
+static struct wpa_ssid *
+wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
+{
+ int 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 (ssid->disabled)
+ continue;
+ if (ssid->mode == IEEE80211_MODE_IBSS ||
+ ssid->mode == IEEE80211_MODE_AP)
+ return ssid;
+ }
+ }
+ return NULL;
+}
+
+
+static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s)
+{
+ struct wpa_scan_res *selected;
+ struct wpa_ssid *ssid = NULL;
+
+ wpa_supplicant_notify_scanning(wpa_s, 0);
+
+ if (wpa_supplicant_get_scan_results(wpa_s) < 0) {
+ if (wpa_s->conf->ap_scan == 2)
+ return;
+ wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
+ "scanning again");
+ wpa_supplicant_req_new_scan(wpa_s, 1);
+ 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_printf(MSG_DEBUG, "New scan results available");
+ 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 ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
+ return;
+
+ if (wpa_s->disconnected) {
+ wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
+ return;
+ }
+
+ if (bgscan_notify_scan(wpa_s) == 1)
+ return;
+
+ selected = wpa_supplicant_pick_network(wpa_s, &ssid);
+ if (selected) {
+ wpa_supplicant_connect(wpa_s, selected, ssid);
+ } else {
+ 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
+ wpa_supplicant_req_new_scan(wpa_s, 5);
+ }
+}
#endif /* CONFIG_NO_SCAN_PROCESSING */
+#ifdef CONFIG_IEEE80211R
+static void wpa_assoc_set_ft_params(struct wpa_supplicant *wpa_s,
+ const u8 *ftie, const u8 *mdie)
+{
+ const u8 *mobility_domain = NULL;
+ const u8 *r0kh_id = NULL;
+ size_t r0kh_id_len = 0;
+ const u8 *r1kh_id = NULL;
+ struct rsn_ftie *hdr;
+ const u8 *pos, *end;
+
+ if (mdie == NULL || ftie == NULL)
+ return;
+
+ if (mdie[1] >= MOBILITY_DOMAIN_ID_LEN) {
+ mobility_domain = mdie + 2;
+#ifdef CONFIG_SME
+ wpa_s->sme.ft_used = 1;
+ os_memcpy(wpa_s->sme.mobility_domain, mobility_domain, 2);
+#endif /* CONFIG_SME */
+ }
+ if (ftie[1] >= sizeof(struct rsn_ftie)) {
+ end = ftie + 2 + ftie[1];
+ hdr = (struct rsn_ftie *) (ftie + 2);
+ pos = (const u8 *) (hdr + 1);
+ while (pos + 1 < end) {
+ if (pos + 2 + pos[1] > end)
+ break;
+ if (pos[0] == FTIE_SUBELEM_R1KH_ID &&
+ pos[1] == FT_R1KH_ID_LEN)
+ r1kh_id = pos + 2;
+ else if (pos[0] == FTIE_SUBELEM_R0KH_ID &&
+ pos[1] >= 1 && pos[1] <= FT_R0KH_ID_MAX_LEN) {
+ r0kh_id = pos + 2;
+ r0kh_id_len = pos[1];
+ }
+ pos += 2 + pos[1];
+ }
+ }
+ wpa_sm_set_ft_params(wpa_s->wpa, mobility_domain, r0kh_id,
+ r0kh_id_len, r1kh_id);
+}
+#endif /* CONFIG_IEEE80211R */
+
static void 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;
+#ifdef CONFIG_IEEE80211R
+ const u8 *mdie = NULL, *ftie = NULL;
+#endif /* CONFIG_IEEE80211R */
wpa_printf(MSG_DEBUG, "Association info event");
if (data->assoc_info.req_ies)
if (!found && data->assoc_info.req_ies)
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
+#ifdef CONFIG_IEEE80211R
+ p = data->assoc_info.resp_ies;
+ l = data->assoc_info.resp_ies_len;
+
+ /* Go through the IEs and make a copy of the FT/MD 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 (p[0] == WLAN_EID_FAST_BSS_TRANSITION)
+ ftie = p;
+ else if (p[0] == WLAN_EID_MOBILITY_DOMAIN)
+ mdie = p;
+ l -= len;
+ p += len;
+ }
+
+ wpa_assoc_set_ft_params(wpa_s, ftie, mdie);
+#endif /* CONFIG_IEEE80211R */
+
/* WPA/RSN IE from Beacon/ProbeResp */
p = data->assoc_info.beacon_ies;
l = data->assoc_info.beacon_ies_len;
{
u8 bssid[ETH_ALEN];
int ft_completed = wpa_ft_is_completed(wpa_s->wpa);
+ int bssid_changed;
+ struct wpa_driver_capa capa;
if (data)
wpa_supplicant_event_associnfo(wpa_s, data);
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);
}
}
}
+#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
eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
}
- if (wpa_s->key_mgmt == WPA_KEY_MGMT_PSK ||
- wpa_s->key_mgmt == WPA_KEY_MGMT_FT_PSK || ft_completed)
+ if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
/* 802.1X::portControl = Auto */
eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
}
wpa_supplicant_cancel_scan(wpa_s);
- if (wpa_s->driver_4way_handshake &&
- (wpa_s->key_mgmt == WPA_KEY_MGMT_PSK ||
- wpa_s->key_mgmt == WPA_KEY_MGMT_FT_PSK)) {
+ 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
* handshake.
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)
{
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) {
/*
}
if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
- (wpa_s->key_mgmt == WPA_KEY_MGMT_PSK ||
- wpa_s->key_mgmt == WPA_KEY_MGMT_FT_PSK)) {
+ wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
"pre-shared key may be incorrect");
}
wpa_clear_keys(wpa_s, wpa_s->bssid);
}
wpa_supplicant_mark_disassoc(wpa_s);
+ bgscan_deinit(wpa_s);
+#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_DELAYED_MIC_ERROR_REPORT
+static 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_printf(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)
wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
pairwise = (data && data->michael_mic_failure.unicast);
- wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
os_get_time(&t);
- if (wpa_s->last_michael_mic_error &&
- t.sec - wpa_s->last_michael_mic_error <= 60) {
+ if ((wpa_s->last_michael_mic_error &&
+ t.sec - 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_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
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_printf(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.sec;
+ 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)
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 */
+#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 */
+
+
void wpa_supplicant_event(void *ctx, wpa_event_type event,
union wpa_event_data *data)
{
struct wpa_supplicant *wpa_s = ctx;
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_DEAUTH:
case EVENT_DISASSOC:
wpa_supplicant_event_disassoc(wpa_s);
break;
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;
default:
wpa_printf(MSG_INFO, "Unknown event %d", event);
break;
projects / thirdparty / hostap.git / blobdiff