bridge: enable multicast_to_unicast on all wireless bridge ports

[project/netifd.git] / system-linux.c

diff --git a/system-linux.c b/system-linux.c
index c6f17e9..5c960b4 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -452,15 +452,27 @@ static char *system_get_bridge(const char *name, char *buf, int buflen)
        return path + 1;
 }
 
+static void system_bridge_set_wireless(const char *bridge, const char *dev)
+{
+       snprintf(dev_buf, sizeof(dev_buf),
+                "/sys/devices/virtual/net/%s/brif/%s/multicast_to_unicast",
+                bridge, dev);
+       system_set_sysctl(dev_buf, "1");
+}
+
 int system_bridge_addif(struct device *bridge, struct device *dev)
 {
        char *oldbr;
+       int ret = 0;
 
        oldbr = system_get_bridge(dev->ifname, dev_buf, sizeof(dev_buf));
-       if (oldbr && !strcmp(oldbr, bridge->ifname))
-               return 0;
+       if (!oldbr || strcmp(oldbr, bridge->ifname) != 0)
+               ret = system_bridge_if(bridge->ifname, dev, SIOCBRADDIF, NULL);
+
+       if (dev->wireless)
+               system_bridge_set_wireless(bridge->ifname, dev->ifname);
 
-       return system_bridge_if(bridge->ifname, dev, SIOCBRADDIF, NULL);
+       return ret;
 }
 
 int system_bridge_delif(struct device *bridge, struct device *dev)