From: Nikolay Aleksandrov <niko...@cumulusnetworks.com>
Add IFLA_BR_MCAST_LAST_MEMBER_CNT to allow setting/getting
br->multicast_last_member_count via netlink.
Signed-off-by: Nikolay Aleksandrov <niko...@cumulusnetworks.com>
---
include/uapi/linux/if_link.h | 1 +
net/bridge/br_netlink.c | 12 +++++++++++-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 10a44a735512..5409a461e47e 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -251,6 +251,7 @@ enum {
IFLA_BR_MCAST_QUERIER,
IFLA_BR_MCAST_HASH_ELASTICITY,
IFLA_BR_MCAST_HASH_MAX,
+ IFLA_BR_MCAST_LAST_MEMBER_CNT,
__IFLA_BR_MAX,
};
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index d6b61b0eeada..cf6ccaea8180 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -773,6 +773,7 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] =
{
[IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
[IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
[IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
+ [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
};
static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
@@ -913,6 +914,12 @@ static int br_changelink(struct net_device *brdev, struct
nlattr *tb[],
if (err)
return err;
}
+
+ if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
+ u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
+
+ br->multicast_last_member_count = val;
+ }
#endif
return 0;
@@ -949,6 +956,7 @@ static size_t br_get_size(const struct net_device *brdev)
nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
nla_total_size(sizeof(u32)) + /*
IFLA_BR_MCAST_HASH_ELASTICITY */
nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
+ nla_total_size(sizeof(u32)) + /*
IFLA_BR_MCAST_LAST_MEMBER_CNT */
#endif
0;
}
@@ -1014,7 +1022,9 @@ static int br_fill_info(struct sk_buff *skb, const struct
net_device *brdev)
nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
br->hash_elasticity) ||
- nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max))
+ nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
+ nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
+ br->multicast_last_member_count))
return -EMSGSIZE;
#endif
--
2.4.3
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