From bc58ecc70aecc68497fe54228ebe8630777b53a0 Mon Sep 17 00:00:00 2001
From: Chris J Arges <chris.j.arges@canonical.com>
Date: Thu, 6 Sep 2012 14:17:40 -0500
Subject: [PATCH] bonding: extend bond_arp_send_all to bridge devices
ARP monitoring does not work when we have a network in the
following configuration:
eth0----+ +----bond0.100----br0-100---{+virtual machines
| |
+----bond0----+----br0---(fixed IP)->--{LAN arp_ip_target}
| |
eth1----+ +----bond0.200----br0-200---{+virtual machines
This patch extends bond_arp_send_all to also check if a device
is also in a bridge.
This is related to the following issues:
http://launchpad.net/bugs/736226
http://bugzilla.kernel.org/show_bug.cgi?id=31822
Thanks to help from Andy Gospodarek.
Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
---
drivers/net/bonding/bond_main.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
@@ -2708,6 +2708,18 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave)
continue;
}
+ /*
+ * Check if the target is part of a bridge.
+ */
+ if (rt->dst.dev->priv_flags & IFF_EBRIDGE) {
+ /* Confirm addr is part of the bridge */
+ addr = bond_confirm_addr(rt->dst.dev, targets[i], 0);
+
+ /* Send ARP request */
+ bond_arp_send(slave->dev, ARPOP_REQUEST, targets[i], addr, 0);
+ continue;
+ }
+
if (net_ratelimit()) {
pr_warning("%s: no path to arp_ip_target %pI4 via rt.dev %s\n",
bond->dev->name, &targets[i],
--
1.7.10.4