bridge: netlink: add support for multicast_querier
Add IFLA_BR_MCAST_QUERIER to allow setting/getting br->multicast_querier
via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 7090b39..fe5fac5 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -248,6 +248,7 @@
IFLA_BR_MCAST_ROUTER,
IFLA_BR_MCAST_SNOOPING,
IFLA_BR_MCAST_QUERY_USE_IFADDR,
+ IFLA_BR_MCAST_QUERIER,
__IFLA_BR_MAX,
};
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 12ef844..e21296d 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -770,6 +770,7 @@
[IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
[IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
[IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
+ [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
};
static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
@@ -888,6 +889,14 @@
val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
br->multicast_query_use_ifaddr = !!val;
}
+
+ if (data[IFLA_BR_MCAST_QUERIER]) {
+ u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
+
+ err = br_multicast_set_querier(br, mcast_querier);
+ if (err)
+ return err;
+ }
#endif
return 0;
@@ -921,6 +930,7 @@
nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
+ nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
#endif
0;
}
@@ -982,7 +992,8 @@
if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
- br->multicast_query_use_ifaddr))
+ br->multicast_query_use_ifaddr) ||
+ nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier))
return -EMSGSIZE;
#endif