ipv4: introduce rt_uses_gateway
Add new flag to remember when route is via gateway.
We will use it to allow rt_gateway to contain address of
directly connected host for the cases when DST_NOCACHE is
used or when the NH exception caches per-destination route
without DST_NOCACHE flag, i.e. when routes are not used for
other destinations. By this way we force the neighbour
resolving to work with the routed destination but we
can use different address in the packet, feature needed
for IPVS-DR where original packet for virtual IP is routed
via route to real IP.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/route.h b/include/net/route.h
index da22243..bc40b63 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -48,7 +48,8 @@
int rt_genid;
unsigned int rt_flags;
__u16 rt_type;
- __u16 rt_is_input;
+ __u8 rt_is_input;
+ __u8 rt_uses_gateway;
int rt_iif;