From: Sam Tannous <stannous@cumulusnetworks.com>
Date: Tue, 8 Jul 2014 19:15:41 +0000 (-0400)
Subject: lldpd: Fix netlink notification group for address changes
X-Git-Tag: 0.7.10~28
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=aca48e4ba570369e877e5039bf5eabb33f542caa;p=thirdparty%2Flldpd.git

lldpd: Fix netlink notification group for address changes

The current netlink notification registration registers
for only link changes. This patch fixes it to include address
changes.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Sam Tannous <stannous@cumulusnetworks.com>
---

diff --git a/src/daemon/netlink.c b/src/daemon/netlink.c
index 3168554a..46d653f9 100644
--- a/src/daemon/netlink.c
+++ b/src/daemon/netlink.c
@@ -422,6 +422,12 @@ netlink_get_addresses()
     return ifaddrs;
 }
 
+static int
+netlink_group_mask(int group)
+{
+	return group ? (1 << (group - 1)) : 0;
+}
+
 /**
  * Subscribe to link changes.
  *
@@ -430,6 +436,13 @@ netlink_get_addresses()
 int
 netlink_subscribe_changes()
 {
+    unsigned int groups;
+
     log_debug("netlink", "listening on interface changes");
-    return netlink_connect(NETLINK_ROUTE, RTMGRP_LINK);
+
+    groups = netlink_group_mask(RTNLGRP_LINK) |
+		netlink_group_mask(RTNLGRP_IPV4_IFADDR) |
+		netlink_group_mask(RTNLGRP_IPV6_IFADDR);
+
+    return netlink_connect(NETLINK_ROUTE, groups);
 }