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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>
This commit is contained in:
Nikolay Aleksandrov 2015-10-04 14:23:38 +02:00 committed by David S. Miller
parent a9a6bc70f5
commit 89126327f9
2 changed files with 13 additions and 1 deletions
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1
include/uapi/linux/if_link.h
View File

@ -246,6 +246,7 @@ enum {
IFLA_BR_GROUP_ADDR,
IFLA_BR_FDB_FLUSH,
IFLA_BR_MCAST_ROUTER,
IFLA_BR_MCAST_SNOOPING,
__IFLA_BR_MAX,
};

13
net/bridge/br_netlink.c
View File

@ -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