bridge: support for controlling flooding of broadcast per port

Add per-port support for controlling flooding of broadcast traffic.
Similar to unicast and multcast flooding that already exist.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David Ahern <dsahern@kernel.org>

diff --git a/bridge/link.c b/bridge/link.c
index dc3fc7adb89e4aebdd566283e40539c014fb1555..80b01f5636fe6d48ccc730d465376929509173f1 100644 (file)
--- a/bridge/link.c
+++ b/bridge/link.c
@@ -153,6 +153,9 @@ static void print_protinfo(FILE *fp, struct rtattr *attr)
                if (prtb[IFLA_BRPORT_MCAST_FLOOD])
                        print_on_off(PRINT_ANY, "mcast_flood", "mcast_flood %s ",
                                     rta_getattr_u8(prtb[IFLA_BRPORT_MCAST_FLOOD]));
+               if (prtb[IFLA_BRPORT_BCAST_FLOOD])
+                       print_on_off(PRINT_ANY, "bcast_flood", "bcast_flood %s ",
+                                    rta_getattr_u8(prtb[IFLA_BRPORT_BCAST_FLOOD]));
                if (prtb[IFLA_BRPORT_MCAST_TO_UCAST])
                        print_on_off(PRINT_ANY, "mcast_to_unicast", "mcast_to_unicast %s ",
                                     rta_getattr_u8(prtb[IFLA_BRPORT_MCAST_TO_UCAST]));
@@ -268,6 +271,7 @@ static void usage(void)
                "                               [ learning_sync {on | off} ]\n"
                "                               [ flood {on | off} ]\n"
                "                               [ mcast_flood {on | off} ]\n"
+               "                               [ bcast_flood {on | off} ]\n"
                "                               [ mcast_to_unicast {on | off} ]\n"
                "                               [ neigh_suppress {on | off} ]\n"
                "                               [ vlan_tunnel {on | off} ]\n"
@@ -300,6 +304,7 @@ static int brlink_modify(int argc, char **argv)
        __s8 flood = -1;
        __s8 vlan_tunnel = -1;
        __s8 mcast_flood = -1;
+       __s8 bcast_flood = -1;
        __s8 mcast_to_unicast = -1;
        __s8 locked = -1;
        __s8 isolated = -1;
@@ -359,6 +364,11 @@ static int brlink_modify(int argc, char **argv)
                        mcast_flood = parse_on_off("mcast_flood", *argv, &ret);
                        if (ret)
                                return ret;
+               } else if (strcmp(*argv, "bcast_flood") == 0) {
+                       NEXT_ARG();
+                       bcast_flood = parse_on_off("bcast_flood", *argv, &ret);
+                       if (ret)
+                               return ret;
                } else if (strcmp(*argv, "mcast_to_unicast") == 0) {
                        NEXT_ARG();
                        mcast_to_unicast = parse_on_off("mcast_to_unicast", *argv, &ret);
@@ -466,6 +476,9 @@ static int brlink_modify(int argc, char **argv)
        if (mcast_flood >= 0)
                addattr8(&req.n, sizeof(req), IFLA_BRPORT_MCAST_FLOOD,
                         mcast_flood);
+       if (bcast_flood >= 0)
+               addattr8(&req.n, sizeof(req), IFLA_BRPORT_BCAST_FLOOD,
+                        bcast_flood);
        if (mcast_to_unicast >= 0)
                addattr8(&req.n, sizeof(req), IFLA_BRPORT_MCAST_TO_UCAST,
                         mcast_to_unicast);