Maintain connection status when wifi roaming
[platform/upstream/connman.git] / gsupplicant / supplicant.c
index 53cc563..e457fef 100755 (executable)
@@ -54,7 +54,6 @@
 #define WLAN_EID_SUPP_RATES 1
 #define WLAN_EID_EXT_SUPP_RATES 50
 #define COUNTRY_CODE_LENGTH    2
-#define WIFI_BSSID_LEN_MAX 6
 #endif
 
 #if defined TIZEN_EXT
@@ -318,6 +317,7 @@ struct g_supplicant_bss {
        unsigned int transition_mode_ssid_len;
        unsigned char transition_mode_bssid[6];
        unsigned char transition_mode_ssid[32];
+       dbus_bool_t pmf_required;
 #endif
 };
 
@@ -437,23 +437,6 @@ struct interface_scan_data {
 };
 
 #if defined TIZEN_EXT
-struct g_connman_bssids {
-       unsigned char bssid[WIFI_BSSID_LEN_MAX];
-       uint16_t strength;
-       uint16_t frequency;
-       uint16_t assoc_reject_cnt;
-       bool is_last_connected;
-#if defined TIZEN_EXT_INS
-       int score_last_connected_bssid;
-       int score_assoc_reject;
-       int score_frequency;
-       int score_strength;
-       int score_snr;
-       int score_est_throughput;
-#endif
-       int ins_score;
-};
-
 struct update_bssid_data {
        GSupplicantNetwork *network;
        unsigned char last_connected_bssid[WIFI_BSSID_LEN_MAX];
@@ -684,6 +667,9 @@ static int store_network_information(GSupplicantInterface * interface,
 
        if ((ssid->security == G_SUPPLICANT_SECURITY_WEP ||
                ssid->security == G_SUPPLICANT_SECURITY_PSK ||
+#if defined TIZEN_EXT
+               ssid->security == G_SUPPLICANT_SECURITY_SAE ||
+#endif
                ssid->security == G_SUPPLICANT_SECURITY_NONE) &&
                ssid->passphrase) {
                interface->network_info.passphrase = g_strdup(ssid->passphrase);
@@ -1436,6 +1422,14 @@ bool g_supplicant_interface_get_is_5_0_ghz_supported(GSupplicantInterface *inter
 
        return interface->is_5_0_Ghz_supported;
 }
+
+unsigned char *g_supplicant_interface_get_add_network_bssid(GSupplicantInterface *interface)
+{
+       if (!interface)
+               return NULL;
+
+       return (unsigned char *)interface->add_network_bssid;
+}
 #endif
 
 const char *g_supplicant_interface_get_driver(GSupplicantInterface *interface)
@@ -1607,6 +1601,32 @@ dbus_int16_t g_supplicant_network_get_signal(GSupplicantNetwork *network)
        return network->signal;
 }
 
+#if defined TIZEN_EXT
+void g_supplicant_network_set_signal(GSupplicantNetwork *network, int signal)
+{
+       if (!network)
+               return;
+
+       network->signal = (dbus_int16_t)signal;
+}
+
+void g_supplicant_network_set_bss_signal(GSupplicantNetwork *network,
+               int signal, int snr)
+{
+       struct g_supplicant_bss *best_bss;
+
+       if (!network)
+               return;
+
+       best_bss = network->best_bss;
+       if (!best_bss)
+               return;
+
+       best_bss->signal = (dbus_int16_t)signal;
+       best_bss->snr = (dbus_int16_t)snr;
+}
+#endif
+
 dbus_uint16_t g_supplicant_network_get_frequency(GSupplicantNetwork *network)
 {
        if (!network)
@@ -1771,6 +1791,14 @@ const unsigned char *g_supplicant_network_get_countrycode(GSupplicantNetwork
 
        return network->country_code;
 }
+
+dbus_bool_t g_supplicant_network_is_pmf_required(GSupplicantNetwork *network)
+{
+       if (!network)
+               return 0;
+
+       return network->best_bss->pmf_required;
+}
 #endif
 
 const unsigned char *g_supplicant_peer_get_widi_ies(GSupplicantPeer *peer,
@@ -1909,10 +1937,10 @@ const char *g_supplicant_network_get_enc_mode(GSupplicantNetwork *network)
                return NULL;
 
        if (network->best_bss->security == G_SUPPLICANT_SECURITY_PSK ||
-           network->best_bss->security == G_SUPPLICANT_SECURITY_SAE ||
-           network->best_bss->security == G_SUPPLICANT_SECURITY_OWE ||
-           network->best_bss->security == G_SUPPLICANT_SECURITY_DPP ||
-           network->best_bss->security == G_SUPPLICANT_SECURITY_IEEE8021X) {
+                       network->best_bss->security == G_SUPPLICANT_SECURITY_SAE ||
+                       network->best_bss->security == G_SUPPLICANT_SECURITY_OWE ||
+                       network->best_bss->security == G_SUPPLICANT_SECURITY_DPP ||
+                       network->best_bss->security == G_SUPPLICANT_SECURITY_IEEE8021X) {
                unsigned int pairwise;
 
                pairwise = network->best_bss->rsn_pairwise |
@@ -2133,7 +2161,6 @@ static int calculate_score_est_throughput(dbus_uint32_t est_throughput)
 
        return score;
 }
-#endif
 
 static int calculate_score(bool is_last_connected, uint16_t assoc_reject_cnt,
                dbus_uint16_t frequency, dbus_int16_t strength,
@@ -2150,6 +2177,7 @@ static int calculate_score(bool is_last_connected, uint16_t assoc_reject_cnt,
 
        return score;
 }
+#endif
 
 static void update_bssid_list(gpointer key, gpointer value, gpointer user_data)
 {
@@ -2169,6 +2197,7 @@ static void update_bssid_list(gpointer key, gpointer value, gpointer user_data)
                        bssids->strength = 100;
 
                bssids->frequency = bss->frequency;
+               bssids->score_snr = (int)bss->snr;
 
 #if defined TIZEN_EXT_INS
                bssids->assoc_reject_cnt = get_assoc_reject_cnt(bssid_data->assoc_reject_table, bssids->bssid);
@@ -2177,8 +2206,7 @@ static void update_bssid_list(gpointer key, gpointer value, gpointer user_data)
                bssids->score_last_connected_bssid = calculate_score_last_connected_bssid(bssids->is_last_connected);
                bssids->score_assoc_reject = calculate_score_assoc_reject(bssids->assoc_reject_cnt);
                bssids->score_frequency = calculate_score_frequency(bss->signal, bssids->frequency);
-               bssids->score_strength = calculate_score_strength(bssids->strength);
-               bssids->score_snr = (int)bss->snr;
+               bssids->score_strength = calculate_score_strength(bss->signal);
                bssids->score_est_throughput = calculate_score_est_throughput(bss->est_throughput);
 
                bssids->ins_score = calculate_score(bssids->is_last_connected,
@@ -2313,6 +2341,43 @@ GSupplicantNetwork *g_supplicant_interface_get_network(GSupplicantInterface *int
 
        return g_hash_table_lookup(interface->network_table, group);
 }
+
+static void copy_assoc_reject(gpointer key, gpointer value, gpointer user_data)
+{
+       struct assoc_reject_data *cloned_assoc_data;
+       struct assoc_reject_data *assoc_data = value;
+       GHashTable *cloned_assoc_reject_table = user_data;
+
+       if (assoc_data && cloned_assoc_reject_table) {
+               cloned_assoc_data = g_try_new0(struct assoc_reject_data, 1);
+               if (!cloned_assoc_data)
+                       return;
+
+               cloned_assoc_data->bssid = g_strdup(assoc_data->bssid);
+               cloned_assoc_data->reject_time_list = g_slist_copy(assoc_data->reject_time_list);
+               g_hash_table_insert(cloned_assoc_reject_table,
+                                       cloned_assoc_data->bssid, cloned_assoc_data);
+       }
+}
+
+GHashTable *g_supplicant_network_clone_assoc_reject_table(GSupplicantNetwork *network)
+{
+       GHashTable *cloned_assoc_reject_table;
+
+       if (!network)
+               return NULL;
+
+       GHashTable *assoc_reject_table = g_supplicant_network_get_assoc_reject_table(network);
+       if (!assoc_reject_table)
+               return NULL;
+
+       cloned_assoc_reject_table = g_hash_table_new_full(g_str_hash, g_str_equal,
+                                                               NULL, remove_assoc_data);
+       g_hash_table_foreach(assoc_reject_table, copy_assoc_reject, cloned_assoc_reject_table);
+
+       return cloned_assoc_reject_table;
+}
+
 #endif
 
 static void merge_network(GSupplicantNetwork *network)
@@ -2553,6 +2618,12 @@ static char *create_group(struct g_supplicant_bss *bss)
 static void update_network_with_best_bss(GSupplicantNetwork *network,
                struct g_supplicant_bss *best_bss)
 {
+       /*
+        * Do not change best BSS if we are connected.
+        */
+       if (network->interface->state == G_SUPPLICANT_STATE_COMPLETED)
+               return;
+
        network->signal = best_bss->signal;
        network->frequency = best_bss->frequency;
        network->best_bss = best_bss;
@@ -2586,7 +2657,7 @@ static bool update_best_bss(GSupplicantNetwork *network,
 #endif
 
        if (score_new > score_best) {
-               SUPPLICANT_DBG("new[" MACSTR "][%u] : best[" MACSTR "][%u]",
+               SUPPLICANT_DBG("new[" MACSTR "][%d] : best[" MACSTR "][%d]",
                        MAC2STR(bss->bssid), score_new,
                        MAC2STR(network->best_bss->bssid), score_best);
 
@@ -2930,6 +3001,7 @@ static void bss_process_ies(DBusMessageIter *iter, void *user_data)
        unsigned char *ext_rates = NULL;
        unsigned int max_rate = 0;
        unsigned int max_ext_rate = 0;
+       unsigned int offset = 0;
        bool ht = false;
        bool vht = false;
 #endif
@@ -2947,6 +3019,8 @@ static void bss_process_ies(DBusMessageIter *iter, void *user_data)
 #if defined TIZEN_EXT
 #define VENDOR_SPECIFIC_INFO 0xDD
 #define WLAN_EID_COUNTRY 7
+#define WLAN_EID_RSN_INFO 48
+#define RSN_CAPABILITY_MFP_REQ (1 << 6)
 #endif
 
        dbus_message_iter_recurse(iter, &array);
@@ -2964,7 +3038,7 @@ static void bss_process_ies(DBusMessageIter *iter, void *user_data)
                unsigned char *vsie;
                int vsie_len = 0;
 
-               if(ie[0] == VENDOR_SPECIFIC_INFO && memcmp(ie+2, OWE_WFA_OUI, sizeof(OWE_WFA_OUI)) == 0) {
+               if (ie[0] == VENDOR_SPECIFIC_INFO && memcmp(ie+2, OWE_WFA_OUI, sizeof(OWE_WFA_OUI)) == 0) {
                        SUPPLICANT_DBG("IE: match vendor specific data : OWE Transition Mode");
 
 /*
@@ -2994,7 +3068,7 @@ static void bss_process_ies(DBusMessageIter *iter, void *user_data)
                        continue;
                }
 
-               if(ie[0] == VENDOR_SPECIFIC_INFO && memcmp(ie+2, WPS_OUI, sizeof(WPS_OUI)) != 0) {
+               if (ie[0] == VENDOR_SPECIFIC_INFO && memcmp(ie+2, WPS_OUI, sizeof(WPS_OUI)) != 0) {
 
                        if (!simplified_log)
                                SUPPLICANT_DBG("IE: match vendor specific data");
@@ -3010,7 +3084,7 @@ static void bss_process_ies(DBusMessageIter *iter, void *user_data)
                        continue;
                }
 
-               if(ie[0] == WLAN_EID_COUNTRY && ie[1] >= 2) {
+               if (ie[0] == WLAN_EID_COUNTRY && ie[1] >= 2) {
                        /* Add country code only if it is a valid alphabet */
                        if (ie[2] >= 65 && ie[2] <= 90 && ie[3] >= 65 && ie[3] <= 90) {
                                memcpy(bss->country_code, ie+2, COUNTRY_CODE_LENGTH);
@@ -3055,6 +3129,18 @@ static void bss_process_ies(DBusMessageIter *iter, void *user_data)
                        }
                        continue;
                }
+
+               if (ie[0] == WLAN_EID_RSN_INFO && ie[1] >= 20) {
+                       r_len = ie[1];
+                       offset = 10 + ie[8] * 4;
+                       offset += ie[offset] * 4 + 2;
+
+                       if (offset <= r_len + 1 &&
+                                       (ie[offset] & RSN_CAPABILITY_MFP_REQ) != 0)
+                               bss->pmf_required = TRUE;
+
+                       continue;
+               }
 #endif
                if (ie[0] != WMM_WPA1_WPS_INFO || ie[1] < WPS_INFO_MIN_LEN ||
                        memcmp(ie+2, WPS_OUI, sizeof(WPS_OUI)) != 0)
@@ -3155,6 +3241,8 @@ static void bss_compute_security(struct g_supplicant_bss *bss)
        if (bss->ieee8021x)
                bss->security = G_SUPPLICANT_SECURITY_IEEE8021X;
 #if defined TIZEN_EXT
+       else if (bss->ft_ieee8021x)
+               bss->security = G_SUPPLICANT_SECURITY_IEEE8021X;
        else if (bss->sae)
                bss->security = G_SUPPLICANT_SECURITY_SAE;
 #endif
@@ -3163,8 +3251,6 @@ static void bss_compute_security(struct g_supplicant_bss *bss)
 #if defined TIZEN_EXT
        else if (bss->ft_psk)
                bss->security = G_SUPPLICANT_SECURITY_FT_PSK;
-       else if (bss->ft_ieee8021x == TRUE)
-               bss->security = G_SUPPLICANT_SECURITY_IEEE8021X;
        else if (bss->owe || bss->owe_transition_mode)
                bss->security = G_SUPPLICANT_SECURITY_OWE;
        else if (bss->dpp)
@@ -3487,6 +3573,13 @@ static void interface_current_bss(GSupplicantInterface *interface,
        GSupplicantNetwork *network;
        struct g_supplicant_bss *bss;
        const char *path;
+#if defined TIZEN_EXT
+       char bssid_buff1[WIFI_BSSID_STR_LEN] = {0,};
+       char bssid_buff2[WIFI_BSSID_STR_LEN] = {0,};
+       char *bssid_str1 = bssid_buff1;
+       char *bssid_str2 = bssid_buff2;
+       gboolean update = FALSE;
+#endif
 
        dbus_message_iter_get_basic(iter, &path);
        if (g_strcmp0(path, "/") == 0) {
@@ -3506,7 +3599,16 @@ static void interface_current_bss(GSupplicantInterface *interface,
 
        interface->current_network = network;
 #if defined TIZEN_EXT
-       SUPPLICANT_DBG("current network [%p]", interface->current_network);
+       snprintf(bssid_str1, WIFI_BSSID_STR_LEN, MACSTR, MAC2STR(bss->bssid));
+       snprintf(bssid_str2, WIFI_BSSID_STR_LEN, MACSTR, MAC2STR(network->best_bss->bssid));
+
+       SUPPLICANT_DBG("current network [%p], Passed bss %s, best bss %s",
+                       interface->current_network, bssid_str1, bssid_str2);
+
+       if (network->frequency != bss->frequency) {
+               network->frequency = bss->frequency;
+               update = TRUE;
+       }
 #endif
 
        if (bss != network->best_bss) {
@@ -3525,9 +3627,19 @@ static void interface_current_bss(GSupplicantInterface *interface,
 
                        network->signal = bss->signal;
                        callback_network_changed(network, "Signal");
+#if defined TIZEN_EXT
+                       update = FALSE;
+               } else {
+                       update = TRUE;
+#endif
                }
        }
 
+#if defined TIZEN_EXT
+       if (update)
+               callback_network_changed(network, "");
+#endif
+
        /*
         * wpa_s could notify about CurrentBSS in any state once
         * it got associated. It is not sure such notification will
@@ -4292,8 +4404,10 @@ static void signal_bss_changed(const char *path, DBusMessageIter *iter)
        supplicant_dbus_property_foreach(iter, bss_property, bss);
 
 #if defined TIZEN_EXT
-       network->frequency = bss->frequency;
-       network->phy_mode = bss->phy_mode;
+       if (network->interface->state != G_SUPPLICANT_STATE_COMPLETED) {
+               network->frequency = bss->frequency;
+               network->phy_mode = bss->phy_mode;
+       }
 #endif
        old_security = network->security;
        bss_compute_security(bss);
@@ -5410,7 +5524,7 @@ static void country_result(const char *error,
                regdom->callback(result, regdom->alpha2,
                                        (void *) regdom->user_data);
 
-       dbus_free(regdom);
+       g_free(regdom);
 }
 
 static void country_params(DBusMessageIter *iter, void *user_data)
@@ -5674,7 +5788,7 @@ static void interface_create_result(const char *error,
        SUPPLICANT_DBG("");
 
        if (error) {
-               g_message("error %s", error);
+               g_warning("error %s", error);
                err = -EIO;
                goto done;
        }
@@ -6439,6 +6553,7 @@ static void interface_signalpoll_result(const char *error,
        int err = 0;
        dbus_int32_t maxspeed = 0;
        dbus_int32_t strength = 0;
+       dbus_int32_t snr = 0;
        DBusMessageIter sub_iter, dict;
 
        if (error) {
@@ -6475,6 +6590,10 @@ static void interface_signalpoll_result(const char *error,
                                dbus_message_iter_get_basic(&value, &strength);
                                SUPPLICANT_DBG("Strength = %d", strength);
                                break;
+                       } else if (g_strcmp0(key, "SNR") == 0) {
+                               dbus_message_iter_get_basic(&value, &snr);
+                               SUPPLICANT_DBG("SNR = %d", snr);
+                               break;
                        }
                }
                dbus_message_iter_next(&dict);
@@ -6482,7 +6601,7 @@ static void interface_signalpoll_result(const char *error,
 
 out:
        if(data->callback)
-               data->callback(err, maxspeed, strength, data->user_data);
+               data->callback(err, maxspeed, strength, snr, data->user_data);
 
        g_free(data->path);
        dbus_free(data);
@@ -6821,10 +6940,8 @@ static void add_network_security_tls(DBusMessageIter *dict,
        if (!ssid->private_key_path)
                return;
 
-#if !defined TIZEN_EXT
        if (!ssid->private_key_passphrase)
                return;
-#endif
 
        if (ssid->ca_cert_path)
                supplicant_dbus_dict_append_basic(dict, "ca_cert",
@@ -6833,11 +6950,9 @@ static void add_network_security_tls(DBusMessageIter *dict,
        supplicant_dbus_dict_append_basic(dict, "private_key",
                                                DBUS_TYPE_STRING,
                                                &ssid->private_key_path);
-#if !defined TIZEN_EXT
        supplicant_dbus_dict_append_basic(dict, "private_key_passwd",
                                                DBUS_TYPE_STRING,
                                                &ssid->private_key_passphrase);
-#endif
        supplicant_dbus_dict_append_basic(dict, "client_cert",
                                                DBUS_TYPE_STRING,
                                                &ssid->client_cert_path);