Add automatic scanning support
[mech_eap.git] / wpa_supplicant / wpa_supplicant.c
index e9c42d3..a043208 100644 (file)
 #include "p2p_supplicant.h"
 #include "notify.h"
 #include "bgscan.h"
+#include "autoscan.h"
 #include "bss.h"
 #include "scan.h"
 #include "offchannel.h"
+#include "hs20_supplicant.h"
 
 const char *wpa_supplicant_version =
 "wpa_supplicant v" VERSION_STR "\n"
@@ -367,6 +369,7 @@ void free_hw_features(struct wpa_supplicant *wpa_s)
 static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s)
 {
        bgscan_deinit(wpa_s);
+       autoscan_deinit(wpa_s);
        scard_deinit(wpa_s->scard);
        wpa_s->scard = NULL;
        wpa_sm_set_scard_ctx(wpa_s->wpa, NULL);
@@ -448,6 +451,8 @@ static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s)
 
        os_free(wpa_s->bssid_filter);
        wpa_s->bssid_filter = NULL;
+
+       wnm_bss_keep_alive_deinit(wpa_s);
 }
 
 
@@ -567,6 +572,19 @@ static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s)
 #endif /* CONFIG_BGSCAN */
 
 
+static void wpa_supplicant_start_autoscan(struct wpa_supplicant *wpa_s)
+{
+       if (autoscan_init(wpa_s))
+               wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize autoscan");
+}
+
+
+static void wpa_supplicant_stop_autoscan(struct wpa_supplicant *wpa_s)
+{
+       autoscan_deinit(wpa_s);
+}
+
+
 /**
  * wpa_supplicant_set_state - Set current connection state
  * @wpa_s: Pointer to wpa_supplicant data
@@ -607,6 +625,8 @@ void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
 #ifdef CONFIG_P2P
                wpas_p2p_completed(wpa_s);
 #endif /* CONFIG_P2P */
+
+               sme_sched_obss_scan(wpa_s, 1);
        } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING ||
                   state == WPA_ASSOCIATED) {
                wpa_s->new_connection = 1;
@@ -614,6 +634,7 @@ void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
 #ifndef IEEE8021X_EAPOL
                wpa_drv_set_supp_port(wpa_s, 0);
 #endif /* IEEE8021X_EAPOL */
+               sme_sched_obss_scan(wpa_s, 0);
        }
        wpa_s->wpa_state = state;
 
@@ -624,6 +645,12 @@ void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
                wpa_supplicant_stop_bgscan(wpa_s);
 #endif /* CONFIG_BGSCAN */
 
+       if (state == WPA_AUTHENTICATING)
+               wpa_supplicant_stop_autoscan(wpa_s);
+
+       if (state == WPA_DISCONNECTED || state == WPA_INACTIVE)
+               wpa_supplicant_start_autoscan(wpa_s);
+
        if (wpa_s->wpa_state != old_state) {
                wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
 
@@ -746,7 +773,7 @@ int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s)
        wpa_supplicant_update_config(wpa_s);
 
        wpa_supplicant_clear_status(wpa_s);
-       if (wpa_supplicant_enabled_networks(wpa_s->conf)) {
+       if (wpa_supplicant_enabled_networks(wpa_s)) {
                wpa_s->reassociate = 1;
                wpa_supplicant_req_scan(wpa_s, 0, 0);
        }
@@ -1272,6 +1299,20 @@ void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
        }
 #endif /* CONFIG_P2P */
 
+#ifdef CONFIG_HS20
+       if (wpa_s->conf->hs20) {
+               struct wpabuf *hs20;
+               hs20 = wpabuf_alloc(20);
+               if (hs20) {
+                       wpas_hs20_add_indication(hs20);
+                       os_memcpy(wpa_ie + wpa_ie_len, wpabuf_head(hs20),
+                                 wpabuf_len(hs20));
+                       wpa_ie_len += wpabuf_len(hs20);
+                       wpabuf_free(hs20);
+               }
+       }
+#endif /* CONFIG_HS20 */
+
 #ifdef CONFIG_INTERWORKING
        if (wpa_s->conf->interworking) {
                u8 *pos = wpa_ie;
@@ -1329,7 +1370,12 @@ void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
        if (bss) {
                params.ssid = bss->ssid;
                params.ssid_len = bss->ssid_len;
-               if (!wpas_driver_bss_selection(wpa_s)) {
+               if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
+                       wpa_printf(MSG_DEBUG, "Limit connection to BSSID "
+                                  MACSTR " freq=%u MHz based on scan results "
+                                  "(bssid_set=%d)",
+                                  MAC2STR(bss->bssid), bss->freq,
+                                  ssid->bssid_set);
                        params.bssid = bss->bssid;
                        params.freq = bss->freq;
                }
@@ -1415,6 +1461,7 @@ void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
                         * succeed.
                         */
                        wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
+                       wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
                        os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
                        return;
                }
@@ -1783,6 +1830,29 @@ int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s,
 
 
 /**
+ * wpa_supplicant_set_scan_interval - Set scan interval
+ * @wpa_s: wpa_supplicant structure for a network interface
+ * @scan_interval: scan interval in seconds
+ * Returns: 0 if succeed or -1 if scan_interval has an invalid value
+ *
+ */
+int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s,
+                                    int scan_interval)
+{
+       if (scan_interval < 0) {
+               wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d",
+                       scan_interval);
+               return -1;
+       }
+       wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec",
+               scan_interval);
+       wpa_s->scan_interval = scan_interval;
+
+       return 0;
+}
+
+
+/**
  * wpa_supplicant_set_debug_params - Set global debug params
  * @global: wpa_global structure
  * @debug_level: debug level
@@ -1857,14 +1927,14 @@ struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
 
        entry = wpa_s->conf->ssid;
        while (entry) {
-               if (!entry->disabled &&
+               if (!wpas_network_disabled(wpa_s, entry) &&
                    ((ssid_len == entry->ssid_len &&
                      os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) &&
                    (!entry->bssid_set ||
                     os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
                        return entry;
 #ifdef CONFIG_WPS
-               if (!entry->disabled &&
+               if (!wpas_network_disabled(wpa_s, entry) &&
                    (entry->key_mgmt & WPA_KEY_MGMT_WPS) &&
                    (entry->ssid == NULL || entry->ssid_len == 0) &&
                    (!entry->bssid_set ||
@@ -1872,7 +1942,7 @@ struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
                        return entry;
 #endif /* CONFIG_WPS */
 
-               if (!entry->disabled && entry->bssid_set &&
+               if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set &&
                    entry->ssid_len == 0 &&
                    os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)
                        return entry;
@@ -2164,7 +2234,7 @@ int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
        wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
        wpa_s->prev_scan_wildcard = 0;
 
-       if (wpa_supplicant_enabled_networks(wpa_s->conf)) {
+       if (wpa_supplicant_enabled_networks(wpa_s)) {
                if (wpa_supplicant_delayed_sched_scan(wpa_s, interface_count,
                                                      100000))
                        wpa_supplicant_req_scan(wpa_s, interface_count,
@@ -2579,6 +2649,7 @@ next_driver:
        if (wpa_drv_get_capa(wpa_s, &capa) == 0) {
                wpa_s->drv_capa_known = 1;
                wpa_s->drv_flags = capa.flags;
+               wpa_s->drv_enc = capa.enc;
                wpa_s->probe_resp_offloads = capa.probe_resp_offloads;
                wpa_s->max_scan_ssids = capa.max_scan_ssids;
                wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids;
@@ -2661,6 +2732,14 @@ static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s,
 
        wpa_supplicant_cleanup(wpa_s);
 
+#ifdef CONFIG_P2P
+       if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
+               wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
+                       "the management interface is being removed");
+               wpas_p2p_deinit_global(wpa_s->global);
+       }
+#endif /* CONFIG_P2P */
+
        if (wpa_s->drv_priv)
                wpa_drv_deinit(wpa_s);
 
@@ -3193,3 +3272,120 @@ int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s)
        return wpa_s->conf->ap_scan == 2 ||
                (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION);
 }
+
+
+#if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW)
+int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s,
+                                             struct wpa_ssid *ssid,
+                                             const char *field,
+                                             const char *value)
+{
+#ifdef IEEE8021X_EAPOL
+       struct eap_peer_config *eap = &ssid->eap;
+
+       wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field);
+       wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value",
+                             (const u8 *) value, os_strlen(value));
+
+       switch (wpa_supplicant_ctrl_req_from_string(field)) {
+       case WPA_CTRL_REQ_EAP_IDENTITY:
+               os_free(eap->identity);
+               eap->identity = (u8 *) os_strdup(value);
+               eap->identity_len = os_strlen(value);
+               eap->pending_req_identity = 0;
+               if (ssid == wpa_s->current_ssid)
+                       wpa_s->reassociate = 1;
+               break;
+       case WPA_CTRL_REQ_EAP_PASSWORD:
+               os_free(eap->password);
+               eap->password = (u8 *) os_strdup(value);
+               eap->password_len = os_strlen(value);
+               eap->pending_req_password = 0;
+               if (ssid == wpa_s->current_ssid)
+                       wpa_s->reassociate = 1;
+               break;
+       case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
+               os_free(eap->new_password);
+               eap->new_password = (u8 *) os_strdup(value);
+               eap->new_password_len = os_strlen(value);
+               eap->pending_req_new_password = 0;
+               if (ssid == wpa_s->current_ssid)
+                       wpa_s->reassociate = 1;
+               break;
+       case WPA_CTRL_REQ_EAP_PIN:
+               os_free(eap->pin);
+               eap->pin = os_strdup(value);
+               eap->pending_req_pin = 0;
+               if (ssid == wpa_s->current_ssid)
+                       wpa_s->reassociate = 1;
+               break;
+       case WPA_CTRL_REQ_EAP_OTP:
+               os_free(eap->otp);
+               eap->otp = (u8 *) os_strdup(value);
+               eap->otp_len = os_strlen(value);
+               os_free(eap->pending_req_otp);
+               eap->pending_req_otp = NULL;
+               eap->pending_req_otp_len = 0;
+               break;
+       case WPA_CTRL_REQ_EAP_PASSPHRASE:
+               os_free(eap->private_key_passwd);
+               eap->private_key_passwd = (u8 *) os_strdup(value);
+               eap->pending_req_passphrase = 0;
+               if (ssid == wpa_s->current_ssid)
+                       wpa_s->reassociate = 1;
+               break;
+       default:
+               wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field);
+               return -1;
+       }
+
+       return 0;
+#else /* IEEE8021X_EAPOL */
+       wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included");
+       return -1;
+#endif /* IEEE8021X_EAPOL */
+}
+#endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */
+
+
+int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
+{
+       int i;
+       unsigned int drv_enc;
+
+       if (ssid == NULL)
+               return 1;
+
+       if (ssid->disabled)
+               return 1;
+
+       if (wpa_s && wpa_s->drv_capa_known)
+               drv_enc = wpa_s->drv_enc;
+       else
+               drv_enc = (unsigned int) -1;
+
+       for (i = 0; i < NUM_WEP_KEYS; i++) {
+               size_t len = ssid->wep_key_len[i];
+               if (len == 0)
+                       continue;
+               if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40))
+                       continue;
+               if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104))
+                       continue;
+               if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128))
+                       continue;
+               return 1; /* invalid WEP key */
+       }
+
+       return 0;
+}
+
+
+int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s)
+{
+       if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P)
+               return 1;
+       if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA)
+               return 0;
+       return -1;
+}