1 files changed, 64 insertions, 0 deletions
diff --git a/net/bridge/br_mrp_netlink.c b/net/bridge/br_mrp_netlink.c
index 34b3a8776991..c4f5c356811f 100644
--- a/net/bridge/br_mrp_netlink.c
+++ b/net/bridge/br_mrp_netlink.c
@@ -304,6 +304,70 @@ int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p,
 	return 0;
 }
 
+int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br)
+{
+	struct nlattr *tb, *mrp_tb;
+	struct br_mrp *mrp;
+
+	mrp_tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_MRP);
+	if (!mrp_tb)
+		return -EMSGSIZE;
+
+	list_for_each_entry_rcu(mrp, &br->mrp_list, list) {
+		struct net_bridge_port *p;
+
+		tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_MRP_INFO);
+		if (!tb)
+			goto nla_info_failure;
+
+		if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_RING_ID,
+				mrp->ring_id))
+			goto nla_put_failure;
+
+		p = rcu_dereference(mrp->p_port);
+		if (p && nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_P_IFINDEX,
+				     p->dev->ifindex))
+			goto nla_put_failure;
+
+		p = rcu_dereference(mrp->s_port);
+		if (p && nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_S_IFINDEX,
+				     p->dev->ifindex))
+			goto nla_put_failure;
+
+		if (nla_put_u16(skb, IFLA_BRIDGE_MRP_INFO_PRIO,
+				mrp->prio))
+			goto nla_put_failure;
+		if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_RING_STATE,
+				mrp->ring_state))
+			goto nla_put_failure;
+		if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_RING_ROLE,
+				mrp->ring_role))
+			goto nla_put_failure;
+		if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_TEST_INTERVAL,
+				mrp->test_interval))
+			goto nla_put_failure;
+		if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_TEST_MAX_MISS,
+				mrp->test_max_miss))
+			goto nla_put_failure;
+		if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_TEST_MONITOR,
+				mrp->test_monitor))
+			goto nla_put_failure;
+
+		nla_nest_end(skb, tb);
+	}
+	nla_nest_end(skb, mrp_tb);
+
+	return 0;
+
+nla_put_failure:
+	nla_nest_cancel(skb, tb);
+
+nla_info_failure:
+	nla_nest_cancel(skb, mrp_tb);
+
+	return -EMSGSIZE;
+}
+
 int br_mrp_port_open(struct net_device *dev, u8 loc)
 {
 	struct net_bridge_port *p;