[ovs-git] Open vSwitch: tunnel: Fix bug where misconfiguration persists. (branch-2.1)
dev at openvswitch.org
dev at openvswitch.org
Wed May 7 22:04:08 UTC 2014
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commit 0fe1d7f39de9836fea01c560a6fdbfd1405096ea
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=0fe1d7f39de9836fea01c560a6fdbfd1405096ea
Author: Joe Stringer <joestringer at nicira.com>
tunnel: Fix bug where misconfiguration persists.
Previously, misconfiguring a tunnel port to use the exact same settings
would cause the corresponding netdev to never be destroyed. When
attempting to re-use the port as a different type, this would fail and
result in a discrepancy between reported port type and actual netdev in
use.
An example configuration that would previously give unexpected behaviour:
ovs-vsctl add-port br0 p0 -- set int p0 type=gre options:remote_ip=1.2.3.4
ovs-vsctl add-port br0 p1 -- set int p1 type=internal
ovs-vsctl set int p1 type=gre options:remote_ip=1.2.3.4
ovs-vsctl set int p1 type=internal
The final command would report in the ovs-vswitchd logs that it is
attempting to configure the port with the same gre settings as p0,
despite the command specifying the type as internal. Even after
deleting and re-adding the port, the message would reappear.
This patch fixes the bug by dereferencing the netdev in the failure
case of tnl_port_add__(), and ensures that the tnl_port structure is
freed in that case as well.
Bug #1198386.
Signed-off-by: Joe Stringer <joestringer at nicira.com>
Acked-by: Ryan Wilson <wryan at vmware.com>
Acked-by: Alex Wang <alexw at nicira.com>
-----------------------------------------------------------------------
Summary of changes:
ofproto/tunnel.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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