bridge: netlink: add support for multicast_snooping
Add IFLA_BR_MCAST_SNOOPING to allow enabling/disabling multicast
snooping via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index f4df609..25e1c66 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -768,6 +768,7 @@
[IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
.len = ETH_ALEN },
[IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
+ [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
};
static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
@@ -871,6 +872,14 @@
if (err)
return err;
}
+
+ if (data[IFLA_BR_MCAST_SNOOPING]) {
+ u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
+
+ err = br_multicast_toggle(br, mcast_snooping);
+ if (err)
+ return err;
+ }
#endif
return 0;
@@ -902,6 +911,7 @@
nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
+ nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
#endif
0;
}
@@ -960,7 +970,8 @@
#endif
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
- if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router))
+ if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
+ nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled))
return -EMSGSIZE;
#endif