Tethering: Get the client mac info of Gadget tether

Change-Id: Icfa6cd683c659e6728060d6201b90109c63fe56d

diff --git a/plugins/gadget.c b/plugins/gadget.c
index 97807d8..6bc37a7 100644 (file)
--- a/plugins/gadget.c
+++ b/plugins/gadget.c
@@ -25,6 +25,8 @@
 
 #include <errno.h>
 #include <net/if.h>
+#include <stdio.h>
+#include <string.h>
 
 #ifndef IFF_LOWER_UP
 #define IFF_LOWER_UP   0x10000
@@ -226,6 +228,71 @@ static struct connman_device_driver gadget_dev_driver = {
 };
 
 static GList *cdc_interface_list = NULL;
+static GHashTable *cdc_mac_hash = NULL;
+
+static void add_station(int index)
+{
+       char *path, line[128] = {'\0'};
+       char *ifname = connman_inet_ifname(index);
+       char *mac;
+       FILE *f;
+
+       if (ifname == NULL)
+               return;
+
+       path = g_strdup_printf("/sys/class/usb_mode/%s/f_rndis/ethaddr",
+                                       ifname);
+
+       f = fopen(path, "re");
+
+       g_free(ifname);
+       g_free(path);
+
+       if (f == NULL)
+               return;
+
+       if (fgets(line, sizeof(line), f) == NULL) {
+               fclose(f);
+               return;
+       }
+
+       fclose(f);
+
+       mac = g_ascii_strdown(line, strlen(line) - 1);
+       DBG("Add station %s in Technology %d", mac,
+                                               CONNMAN_SERVICE_TYPE_GADGET);
+
+       g_hash_table_insert(cdc_mac_hash, GINT_TO_POINTER(index),
+                               mac);
+
+       connman_technology_tethering_add_station(CONNMAN_SERVICE_TYPE_GADGET,
+                               mac);
+}
+
+static void remove_station(int index)
+{
+       char *mac;
+       mac = g_hash_table_lookup(cdc_mac_hash, GINT_TO_POINTER(index));
+       if (mac == NULL)
+               return;
+
+       connman_technology_tethering_remove_station(mac);
+
+       g_hash_table_remove(cdc_mac_hash, GINT_TO_POINTER(index));
+}
+
+static gboolean remove_all_station(gpointer key, gpointer value, gpointer user_data)
+{
+       char *mac;
+       mac = value;
+       if (mac == NULL)
+               return TRUE;
+
+       connman_technology_tethering_remove_station(mac);
+
+       return TRUE;
+}
+
 
 static void gadget_tech_add_interface(struct connman_technology *technology,
                        int index, const char *name, const char *ident)
@@ -246,6 +313,8 @@ static void gadget_tech_remove_interface(struct connman_technology *technology,
 
        cdc_interface_list = g_list_remove(cdc_interface_list,
                                        GINT_TO_POINTER((int) index));
+
+       remove_station(index);
 }
 
 static void gadget_tech_enable_tethering(struct connman_technology *technology,
@@ -270,6 +339,8 @@ static void gadget_tech_enable_tethering(struct connman_technology *technology,
                connman_inet_ifup(index);
 
                connman_inet_add_to_bridge(index, bridge);
+
+               add_station(index);
        }
 }
 
@@ -283,6 +354,8 @@ static void gadget_tech_disable_tethering(struct connman_technology *technology,
 
                connman_inet_remove_from_bridge(index, bridge);
 
+               remove_station(index);
+
                connman_inet_ifdown(index);
 
                connman_technology_tethering_notify(technology, false);
@@ -305,14 +378,28 @@ static int gadget_tech_set_tethering(struct connman_technology *technology,
 
 static int gadget_tech_probe(struct connman_technology *technology)
 {
+       DBG("tech probe %p", technology);
+
+       cdc_mac_hash = g_hash_table_new_full(g_direct_hash,
+                                        g_direct_equal, NULL, g_free);
+
        return 0;
 }
 
 static void gadget_tech_remove(struct connman_technology *technology)
 {
+       DBG("tech remove %p", technology);
+
        g_list_free(cdc_interface_list);
 
        cdc_interface_list = NULL;
+
+       if (cdc_mac_hash) {
+               g_hash_table_foreach_remove(cdc_mac_hash, remove_all_station,
+                                               NULL);
+               g_hash_table_destroy(cdc_mac_hash);
+               cdc_mac_hash = NULL;
+       }
 }
 
 static struct connman_technology_driver gadget_tech_driver = {