tethering: Disable forward delay on the tethering bridge

diff --git a/src/tethering.c b/src/tethering.c
index c5e957d..31ce0de 100644 (file)
--- a/src/tethering.c
+++ b/src/tethering.c
@@ -129,6 +129,31 @@ static void dhcp_server_stop(GDHCPServer *server)
        g_dhcp_server_unref(server);
 }
 
+static int set_forward_delay(const char *name, unsigned int delay)
+{
+       FILE *f;
+       char *forward_delay_path;
+
+       forward_delay_path =
+               g_strdup_printf("/sys/class/net/%s/bridge/forward_delay", name);
+
+       if (forward_delay_path == NULL)
+               return -ENOMEM;
+
+       f = fopen(forward_delay_path, "r+");
+
+       g_free(forward_delay_path);
+
+       if (f == NULL)
+               return -errno;
+
+       fprintf(f, "%d", delay);
+
+       fclose(f);
+
+       return 0;
+}
+
 static int create_bridge(const char *name)
 {
        int sk, err;
@@ -141,12 +166,17 @@ static int create_bridge(const char *name)
 
        err = ioctl(sk, SIOCBRADDBR, name);
 
-       close(sk);
-
        if (err < 0)
                return -EOPNOTSUPP;
 
-       return 0;
+       err = set_forward_delay(name, 0);
+
+       if (err < 0)
+               ioctl(sk, SIOCBRDELBR, name);
+
+       close(sk);
+
+       return err;
 }
 
 static int remove_bridge(const char *name)