netdev - [PATCH iproute2-next v3 4/7] ip: iplink_bridge_slave: support for broadcast flooding

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Date:   Wed,  9 Mar 2022 20:23:13 +0100
From:   Joachim Wiberg <troglobit@...il.com>
To:     netdev@...r.kernel.org
Cc:     David Ahern <dsahern@...nel.org>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Nikolay Aleksandrov <razor@...ckwall.org>,
        Joachim Wiberg <troglobit@...il.com>
Subject: [PATCH iproute2-next v3 4/7] ip: iplink_bridge_slave: support for broadcast flooding

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@...il.com>
---
 ip/iplink_bridge_slave.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/ip/iplink_bridge_slave.c b/ip/iplink_bridge_slave.c
index 71787586..0cf3422d 100644
--- a/ip/iplink_bridge_slave.c
+++ b/ip/iplink_bridge_slave.c
@@ -37,6 +37,7 @@ static void print_explain(FILE *f)
 		"			[ mcast_router MULTICAST_ROUTER ]\n"
 		"			[ mcast_fast_leave {on | off} ]\n"
 		"			[ mcast_flood {on | off} ]\n"
+		"			[ bcast_flood {on | off} ]\n"
 		"			[ mcast_to_unicast {on | off} ]\n"
 		"			[ group_fwd_mask MASK ]\n"
 		"			[ neigh_suppress {on | off} ]\n"
@@ -250,6 +251,10 @@ static void bridge_slave_print_opt(struct link_util *lu, FILE *f,
 		print_on_off(PRINT_ANY, "mcast_flood", "mcast_flood %s ",
 			     rta_getattr_u8(tb[IFLA_BRPORT_MCAST_FLOOD]));
 
+	if (tb[IFLA_BRPORT_BCAST_FLOOD])
+		print_on_off(PRINT_ANY, "bcast_flood", "bcast_flood %s ",
+			     rta_getattr_u8(tb[IFLA_BRPORT_BCAST_FLOOD]));
+
 	if (tb[IFLA_BRPORT_MCAST_TO_UCAST])
 		print_on_off(PRINT_ANY, "mcast_to_unicast", "mcast_to_unicast %s ",
 			     rta_getattr_u8(tb[IFLA_BRPORT_MCAST_TO_UCAST]));
@@ -350,6 +355,10 @@ static int bridge_slave_parse_opt(struct link_util *lu, int argc, char **argv,
 			NEXT_ARG();
 			bridge_slave_parse_on_off("mcast_flood", *argv, n,
 						  IFLA_BRPORT_MCAST_FLOOD);
+		} else if (matches(*argv, "bcast_flood") == 0) {
+			NEXT_ARG();
+			bridge_slave_parse_on_off("bcast_flood", *argv, n,
+						  IFLA_BRPORT_BCAST_FLOOD);
 		} else if (matches(*argv, "mcast_to_unicast") == 0) {
 			NEXT_ARG();
 			bridge_slave_parse_on_off("mcast_to_unicast", *argv, n,
-- 
2.25.1