netdev - [PATCH net-next 6/6] net: bridge: vlan: dump mcast ctx querier state

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Date:   Fri, 13 Aug 2021 18:00:02 +0300
From:   Nikolay Aleksandrov <razor@...ckwall.org>
To:     netdev@...r.kernel.org
Cc:     roopa@...dia.com, bridge@...ts.linux-foundation.org,
        Nikolay Aleksandrov <nikolay@...dia.com>
Subject: [PATCH net-next 6/6] net: bridge: vlan: dump mcast ctx querier state

From: Nikolay Aleksandrov <nikolay@...dia.com>

Use the new mcast querier state dump infrastructure and export vlans'
mcast context querier state embedded in attribute
BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_STATE.

Signed-off-by: Nikolay Aleksandrov <nikolay@...dia.com>
---
 include/uapi/linux/if_bridge.h | 1 +
 net/bridge/br_vlan_options.c   | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index eceaad200bf6..f71a81fdbbc6 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -563,6 +563,7 @@ enum {
 	BRIDGE_VLANDB_GOPTS_MCAST_QUERIER,
 	BRIDGE_VLANDB_GOPTS_MCAST_ROUTER,
 	BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS,
+	BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_STATE,
 	__BRIDGE_VLANDB_GOPTS_MAX
 };
 #define BRIDGE_VLANDB_GOPTS_MAX (__BRIDGE_VLANDB_GOPTS_MAX - 1)
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
index b4fd5fa441b7..49dec53a4a74 100644
--- a/net/bridge/br_vlan_options.c
+++ b/net/bridge/br_vlan_options.c
@@ -299,7 +299,9 @@ bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range,
 	    nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERIER,
 		       v_opts->br_mcast_ctx.multicast_querier) ||
 	    nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_ROUTER,
-		       v_opts->br_mcast_ctx.multicast_router))
+		       v_opts->br_mcast_ctx.multicast_router) ||
+	    br_multicast_dump_querier_state(skb, &v_opts->br_mcast_ctx,
+					    BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_STATE))
 		goto out_err;
 
 	clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_last_member_interval);
@@ -379,6 +381,7 @@ static size_t rtnl_vlan_global_opts_nlmsg_size(void)
 		+ nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL */
 		+ nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER */
 		+ nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_ROUTER */
+		+ br_multicast_querier_state_size() /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_STATE */
 #endif
 		+ nla_total_size(sizeof(u16)); /* BRIDGE_VLANDB_GOPTS_RANGE */
 }
-- 
2.31.1