sysinfo: Add interface link status to sysinfo data

This changes adds a 'link' parameter to the interface information sent
in sysinfo messages. The discover network code populates this from the
incoming netlink messages.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

1 files changed, 7 insertions, 6 deletions

diff --git a/discover/network.c b/discover/network.c
index bc7e186..7ddecc0 100644
--- a/discover/network.c
+++ b/discover/network.c
@@ -416,14 +416,15 @@ static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
 		memcpy(interface->hwaddr, ifaddr, sizeof(interface->hwaddr));
 		strncpy(interface->name, ifname, sizeof(interface->name) - 1);
 		add_interface(network, interface);
-
-		/* tell the sysinfo code about this interface */
-		if (strcmp(interface->name, "lo"))
-			system_info_register_interface(
-					sizeof(interface->hwaddr),
-					interface->hwaddr, interface->name);
 	}
 
+	/* notify the sysinfo code about changes to this interface */
+	if (strcmp(interface->name, "lo"))
+		system_info_register_interface(
+				sizeof(interface->hwaddr),
+				interface->hwaddr, interface->name,
+				info->ifi_flags & IFF_LOWER_UP);
+
 	configure_interface(network, interface,
 			info->ifi_flags & IFF_UP,
 			info->ifi_flags & IFF_LOWER_UP);