Add IEEE 802.11 protocol(b/g/n/a/ac) Modes of APs

[platform/upstream/connman.git] / gsupplicant / supplicant.c

diff --git a/gsupplicant/supplicant.c b/gsupplicant/supplicant.c
index e300f19..e7dfcb2 100644 (file)
--- a/gsupplicant/supplicant.c
+++ b/gsupplicant/supplicant.c
@@ -45,6 +45,10 @@
 #define IEEE80211_CAP_PRIVACY  0x0010
 
 #if defined TIZEN_EXT
+#define WLAN_EID_HT_CAP 45
+#define WLAN_EID_VHT_CAP 191
+#define WLAN_EID_SUPP_RATES 1
+#define WLAN_EID_EXT_SUPP_RATES 50
 #define COUNTRY_CODE_LENGTH    2
 #endif
 
@@ -246,6 +250,7 @@ struct g_supplicant_bss {
        GSList *vsie_list;
        dbus_bool_t hs20;
        unsigned char country_code[COUNTRY_CODE_LENGTH];
+       GSupplicantPhy_mode phy_mode;
 #endif
        unsigned int wps_capabilities;
 #if defined TIZEN_EXT_WIFI_MESH
@@ -277,6 +282,7 @@ struct _GSupplicantNetwork {
        unsigned int keymgmt;
        GSList *vsie_list;
        unsigned char country_code[COUNTRY_CODE_LENGTH];
+       GSupplicantPhy_mode phy_mode;
 #endif
 };
 
@@ -1414,6 +1420,16 @@ dbus_bool_t g_supplicant_network_is_wps_advertizing(GSupplicantNetwork *network)
        return FALSE;
 }
 
+#ifdef TIZEN_EXT
+GSupplicantPhy_mode g_supplicant_network_get_phy_mode(GSupplicantNetwork *network)
+{
+       if (!network)
+               return G_SUPPLICANT_MODE_IEEE80211_UNKNOWN;
+
+       return network->phy_mode;
+}
+#endif
+
 GSupplicantInterface *g_supplicant_peer_get_interface(GSupplicantPeer *peer)
 {
        if (!peer)
@@ -2022,6 +2038,7 @@ static int add_or_replace_bss_to_network(struct g_supplicant_bss *bss)
 
        network->isHS20AP = bss->hs20;
        memcpy(network->country_code, bss->country_code, COUNTRY_CODE_LENGTH);
+       network->phy_mode = bss->phy_mode;
 #endif
 
        SUPPLICANT_DBG("New network %s created", network->name);
@@ -2204,6 +2221,50 @@ static unsigned int get_tlv(unsigned char *ie, unsigned int ie_size,
        return 0;
 }
 
+#if defined TIZEN_EXT
+static void get_bss_phy_mode(unsigned int max_rate,
+               unsigned int max_ext_rate, bool ht, bool vht, void *data)
+{
+       struct g_supplicant_bss *bss = data;
+       unsigned int freq = bss->frequency;
+
+       /* Following conditions are used to determine
+        * IEEE 802.11 Protocol Modes:-
+        *
+        * 1. If “Supported rates” is only till 11 Mbps,
+        *    and frequency is in 2.4GHz band, then protocol is 11B.
+        * 2. If “Supported rates” is till 54Mbps or
+        *    “Extended supported rates” are present,
+        *    and frequency is in 2.4GHz band, then protocol is 11G.
+        * 3. If “Supported rates” is only till 54 Mbps,
+        *    frequency is in 5GHz band , then protocol is 11A.
+        * 4. If “HT capabilities” is supported , then protocol is 11N.
+        * 5. If “HT capabilities” & “VHT” is supported and
+        *    frequency is in 5 GHz band, then protocol is 11AC.
+        * */
+
+       if (freq >= 2412 && freq <= 2484) { /* 2.4 Ghz Band */
+               if (max_rate <= 11 && max_ext_rate <= 0 && !ht)
+                       bss->phy_mode = G_SUPPLICANT_MODE_IEEE80211B;
+               else if ((max_rate <= 54 || max_ext_rate > 0) && !ht)
+                       bss->phy_mode = G_SUPPLICANT_MODE_IEEE80211BG;
+               else if ((max_rate >= 54 || max_ext_rate > 0) && ht)
+                       bss->phy_mode = G_SUPPLICANT_MODE_IEEE80211BGN;
+               else
+                       bss->phy_mode = G_SUPPLICANT_MODE_UNKNOWN;
+       } else if (freq >= 5180 && freq <= 5825) { /* 5 Ghz Band */
+               if (max_rate <= 54 && !ht)
+                       bss->phy_mode = G_SUPPLICANT_MODE_IEEE80211A;
+               else if ((max_rate >= 54 || max_ext_rate > 0) && ht && !vht)
+                       bss->phy_mode = G_SUPPLICANT_MODE_IEEE80211AN;
+               else if ((max_rate >= 54 || max_ext_rate > 0) && ht && vht)
+                       bss->phy_mode = G_SUPPLICANT_MODE_IEEE80211ANAC;
+               else
+                       bss->phy_mode = G_SUPPLICANT_MODE_UNKNOWN;
+       }
+}
+#endif
+
 static void bss_process_ies(DBusMessageIter *iter, void *user_data)
 {
        struct g_supplicant_bss *bss = user_data;
@@ -2212,6 +2273,15 @@ static void bss_process_ies(DBusMessageIter *iter, void *user_data)
        DBusMessageIter array;
        unsigned int value;
        int ie_len;
+#if defined TIZEN_EXT
+       int r_len, j;
+       unsigned char *rates = NULL;
+       unsigned char *ext_rates = NULL;
+       unsigned int max_rate = 0;
+       unsigned int max_ext_rate = 0;
+       bool ht = false;
+       bool vht = false;
+#endif
 
 #define WMM_WPA1_WPS_INFO 221
 #define WPS_INFO_MIN_LEN  6
@@ -2264,6 +2334,44 @@ static void bss_process_ies(DBusMessageIter *iter, void *user_data)
                                continue;
                        }
                }
+
+               if (ie[0] == WLAN_EID_HT_CAP && ie[1]) {
+                       ht = true;
+                       continue;
+               }
+
+               if (ie[0] == WLAN_EID_VHT_CAP && ie[1]) {
+                       vht = true;
+                       continue;
+               }
+
+               if (ie[0] == WLAN_EID_SUPP_RATES && ie[1]) {
+                       r_len = ie[1];
+                       rates = g_malloc0(r_len);
+                       if (!rates)
+                               continue;
+
+                       for (j = 0; ie && j < r_len; j++) {
+                               rates[j] = ((ie[j + 2] & 0x7f) * 500000)/1000000;
+                               if (max_rate < rates[j])
+                                       max_rate = rates[j];
+                       }
+                       continue;
+               }
+
+               if (ie[0] == WLAN_EID_EXT_SUPP_RATES && ie[1] > 0) {
+                       r_len = ie[1];
+                       ext_rates = g_malloc0(r_len);
+                       if (!ext_rates)
+                               continue;
+
+                       for (j = 0; ie && j < r_len; j++) {
+                               ext_rates[j] = ((ie[j + 2] & 0x7f) * 500000)/1000000;
+                               if (max_ext_rate < ext_rates[j])
+                                       max_ext_rate = ext_rates[j];
+                       }
+                       continue;
+               }
 #endif
                if (ie[0] != WMM_WPA1_WPS_INFO || ie[1] < WPS_INFO_MIN_LEN ||
                        memcmp(ie+2, WPS_OUI, sizeof(WPS_OUI)) != 0)
@@ -2299,6 +2407,13 @@ static void bss_process_ies(DBusMessageIter *iter, void *user_data)
 
                SUPPLICANT_DBG("WPS Methods 0x%x", bss->wps_capabilities);
        }
+#ifdef TIZEN_EXT
+       get_bss_phy_mode(max_rate, max_ext_rate, ht, vht, user_data);
+       if (rates)
+               g_free(rates);
+       if (ext_rates)
+               g_free(ext_rates);
+#endif
 }
 
 static void bss_compute_security(struct g_supplicant_bss *bss)
@@ -3253,6 +3368,7 @@ 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;
 #endif
        old_security = network->security;
        bss_compute_security(bss);