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authorNikolay Aleksandrov <nikolay@cumulusnetworks.com>2015-10-04 14:23:38 +0200
committerDavid S. Miller <davem@davemloft.net>2015-10-04 16:46:02 -0700
commit89126327f921bd278c72284d38428443bbef344f (patch)
treeef91b20f53496051be31c16dfcf55e083310f116
parenta9a6bc70f5f70b3835b081e401b469b88c7c8a3a (diff)
downloadlinux-89126327f921bd278c72284d38428443bbef344f.tar.bz2
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>
-rw-r--r--include/uapi/linux/if_link.h1
-rw-r--r--net/bridge/br_netlink.c13
2 files changed, 13 insertions, 1 deletions
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 5d2c92973afe..22cb395a713d 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -246,6 +246,7 @@ enum {
IFLA_BR_GROUP_ADDR,
IFLA_BR_FDB_FLUSH,
IFLA_BR_MCAST_ROUTER,
+ IFLA_BR_MCAST_SNOOPING,
__IFLA_BR_MAX,
};
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index f4df609c1ad9..25e1c66d70f1 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -768,6 +768,7 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
[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 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
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 @@ static size_t br_get_size(const struct net_device *brdev)
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 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
#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