commit 7599a2201fc71cdca16a92d350f14cce8730e03f
author Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Sun Oct 04 14:23:30 2015 +0200
committer David S. Miller <davem@davemloft.net> Sun Oct 04 16:45:55 2015 -0700
tree 1780d452e2fdbbb4160e066f37649b263e3bd9a2
parent 5127c81f84de0dd643d5840a2c7de571bc6aceb3

bridge: netlink: export bridge id

Add IFLA_BR_BRIDGE_ID and export br->bridge_id via netlink.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/bridge/br_netlink.c

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 7a36924..a63f944 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -855,6 +855,7 @@
 #endif
 	       nla_total_size(sizeof(u16)) +    /* IFLA_BR_GROUP_FWD_MASK */
 	       nla_total_size(sizeof(struct ifla_bridge_id)) +   /* IFLA_BR_ROOT_ID */
+	       nla_total_size(sizeof(struct ifla_bridge_id)) +   /* IFLA_BR_BRIDGE_ID */
 	       0;
 }
 
@@ -869,11 +870,14 @@
 	u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
 	u16 group_fwd_mask = br->group_fwd_mask;
 	u8 vlan_enabled = br_vlan_enabled(br);
-	struct ifla_bridge_id root_id;
+	struct ifla_bridge_id root_id, bridge_id;
 
+	memset(&bridge_id, 0, sizeof(bridge_id));
 	memset(&root_id, 0, sizeof(root_id));
 	memcpy(root_id.prio, br->designated_root.prio, sizeof(root_id.prio));
 	memcpy(root_id.addr, br->designated_root.addr, sizeof(root_id.addr));
+	memcpy(bridge_id.prio, br->bridge_id.prio, sizeof(bridge_id.prio));
+	memcpy(bridge_id.addr, br->bridge_id.addr, sizeof(bridge_id.addr));
 
 	if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
 	    nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
@@ -883,7 +887,8 @@
 	    nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
 	    nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
 	    nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, group_fwd_mask) ||
-	    nla_put(skb, IFLA_BR_ROOT_ID, sizeof(root_id), &root_id))
+	    nla_put(skb, IFLA_BR_ROOT_ID, sizeof(root_id), &root_id) ||
+	    nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(bridge_id), &bridge_id))
 		return -EMSGSIZE;
 
 #ifdef CONFIG_BRIDGE_VLAN_FILTERING