[strongSwan-dev] [PATCH] kernel-netlink: Fix get_route() interface determination

[Christophe Gouault]

A wrong variable is used (route instead of best), so much that the
returned interface belongs to the last seen route instead of the best
choice route.

get_route() may therefore return mismatching interface and gateway.

Fixes: 66e9165bc686 ("kernel-netlink: Return outbound interface in get_nexthop()")

Signed-off-by: Christophe Gouault <christophe.gouault at 6wind.com>
---
 src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
index b9d3269415e3..0132f7269f67 100644
--- a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
+++ b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
@@ -1995,9 +1995,9 @@ static host_t *get_route(private_kernel_netlink_net_t *this, host_t *dest,
 		if (best || routes->get_first(routes, (void**)&best) == SUCCESS)
 		{
 			addr = host_create_from_chunk(msg->rtm_family, best->gtw, 0);
-			if (iface && route->oif)
+			if (iface && best->oif)
 			{
-				*iface = get_interface_name_by_index(this, route->oif);
+				*iface = get_interface_name_by_index(this, best->oif);
 			}
 		}
 		if (!addr && !match_net)
-- 
2.1.4