#include "bss.h"
#include "scan.h"
#include "offchannel.h"
+#include "interworking.h"
static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
#ifndef CONFIG_NO_SCAN_PROCESSING
-static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
+static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
struct wpa_ssid *ssid)
{
int i, privacy = 0;
static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid,
- struct wpa_scan_res *bss)
+ struct wpa_bss *bss)
{
struct wpa_ie_data ie;
int proto_match = 0;
ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
- rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
+ rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
proto_match++;
return 1;
}
- wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
+ wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
proto_match++;
}
-static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
+static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
{
const struct hostapd_hw_modes *mode = NULL, *modes;
const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
return 0;
for (i = 0; i < (int) sizeof(scan_ie); i++) {
- rate_ie = wpa_scan_get_ie(bss, scan_ie[i]);
+ rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
if (rate_ie == NULL)
continue;
static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
- int i, struct wpa_scan_res *bss,
+ int i, struct wpa_bss *bss,
struct wpa_ssid *group)
{
- const u8 *ssid_;
- u8 wpa_ie_len, rsn_ie_len, ssid_len;
+ u8 wpa_ie_len, rsn_ie_len;
int wpa;
struct wpa_blacklist *e;
const u8 *ie;
struct wpa_ssid *ssid;
- 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);
+ ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
wpa_ie_len = ie ? ie[1] : 0;
- ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
+ ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
rsn_ie_len = ie ? ie[1] : 0;
wpa_dbg(wpa_s, 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),
+ i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
- wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
+ wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
e = wpa_blacklist_get(wpa_s, bss->bssid);
if (e) {
}
}
- if (ssid_len == 0) {
+ if (bss->ssid_len == 0) {
wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
return NULL;
}
check_ssid = 0;
if (check_ssid &&
- (ssid_len != ssid->ssid_len ||
- os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
+ (bss->ssid_len != ssid->ssid_len ||
+ os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
continue;
}
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)
{
- size_t i;
+ unsigned int i;
wpa_dbg(wpa_s, 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;
-
+ for (i = 0; i < wpa_s->last_scan_res_used; i++) {
+ struct wpa_bss *bss = wpa_s->last_scan_res[i];
*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_len = ie ? ie[1] : 0;
-
wpa_dbg(wpa_s, 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);
+ MAC2STR(bss->bssid),
+ wpa_ssid_txt(bss->ssid, bss->ssid_len));
+ return bss;
}
return NULL;
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;
+ if (wpa_s->last_scan_res == NULL ||
+ wpa_s->last_scan_res_used == 0)
+ return NULL; /* no scan results from last update */
+
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],
+ wpa_s, wpa_s->conf->pssid[prio],
selected_ssid);
if (selected)
break;
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_ssid *ssid)
{
- size_t i;
- struct wpa_scan_res *current_bss = NULL;
+ struct wpa_bss *current_bss = NULL;
int min_diff;
if (wpa_s->reassociate)
if (wpas_driver_bss_selection(wpa_s))
return 0; /* Driver-based roaming */
- 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;
-
- 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 (wpa_s->current_ssid->ssid)
+ current_bss = wpa_bss_get(wpa_s, 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, 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
wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
- struct wpa_bss *selected;
- struct wpa_ssid *ssid = NULL;
struct wpa_scan_results *scan_res;
int ap = 0;
+#ifndef CONFIG_NO_RANDOM_POOL
+ size_t i, num;
+#endif /* CONFIG_NO_RANDOM_POOL */
#ifdef CONFIG_AP
if (wpa_s->ap_iface)
}
#ifndef CONFIG_NO_RANDOM_POOL
- size_t i, num;
num = scan_res->num;
if (num > 10)
num = 10;
wpas_wps_update_ap_info(wpa_s, scan_res);
- selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
+ wpa_scan_results_free(scan_res);
+
+ return wpas_select_network_from_last_scan(wpa_s);
+}
+
+
+int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s)
+{
+ struct wpa_bss *selected;
+ struct wpa_ssid *ssid = NULL;
+
+ selected = wpa_supplicant_pick_network(wpa_s, &ssid);
if (selected) {
int skip;
- skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
- scan_res);
- wpa_scan_results_free(scan_res);
+ skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
if (skip) {
wpa_supplicant_rsn_preauth_scan_results(wpa_s);
return 0;
}
wpa_supplicant_rsn_preauth_scan_results(wpa_s);
} else {
- wpa_scan_results_free(scan_res);
wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
ssid = wpa_supplicant_pick_new_network(wpa_s);
if (ssid) {
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 0;
+ }
+#endif /* CONFIG_INTERWORKING */
if (wpa_supplicant_req_sched_scan(wpa_s))
wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
timeout_usec);
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 void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
+ u16 reason_code,
+ int locally_generated)
+{
+ const u8 *bssid;
int authenticating;
u8 prev_pending_bssid[ETH_ALEN];
struct wpa_bss *fast_reconnect = NULL;
struct wpa_ssid *fast_reconnect_ssid = NULL;
+ struct wpa_ssid *last_ssid;
authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
else
wpa_s->disconnect_reason = reason_code;
wpas_notify_disconnect_reason(wpa_s);
- 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" : "");
- }
if (wpa_supplicant_dynamic_keys(wpa_s)) {
wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
wpa_s->keys_cleared = 0;
wpa_clear_keys(wpa_s, wpa_s->bssid);
}
+ last_ssid = wpa_s->current_ssid;
wpa_supplicant_mark_disassoc(wpa_s);
- if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
+ if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
+ wpa_s->current_ssid = last_ssid;
+ }
if (fast_reconnect) {
#ifndef CONFIG_NO_SCAN_PROCESSING
wpas_auth_failed(wpa_s);
#ifdef CONFIG_P2P
if (event == EVENT_DEAUTH && data) {
- wpas_p2p_deauth_notif(wpa_s, data->deauth_info.addr,
- reason_code,
- data->deauth_info.ie,
- data->deauth_info.ie_len,
- locally_generated);
+ if (wpas_p2p_deauth_notif(wpa_s,
+ data->deauth_info.addr,
+ reason_code,
+ data->deauth_info.ie,
+ data->deauth_info.ie_len,
+ locally_generated) > 0) {
+ /*
+ * The interface was removed, so cannot
+ * continue processing any additional
+ * operations after this.
+ */
+ break;
+ }
}
#endif /* CONFIG_P2P */
+ wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
+ locally_generated);
break;
case EVENT_MICHAEL_MIC_FAILURE:
wpa_supplicant_event_michael_mic_failure(wpa_s, data);
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