Subject: [PATCH 07/41] ipv4: mask tos for input route

From: Julian Anastasov <[email-masked]>
Date: Sun, 26 Feb 2017 17:14:35 +0200

[ Upstream commit 6e28099d38c0e50d62c1afc054e37e573adf3d21 ]

Restore the lost masking of TOS in input route code to
allow ip rules to match it properly.

Problem [1] noticed by Shmulik Ladkani <[email-masked]>

[1] http://marc.info/?t=137331755300040&r=1&w=2

Fixes: 89aef8921bfb ("ipv4: Delete routing cache.")
Signed-off-by: Julian Anastasov <[email-masked]>
Signed-off-by: David S. Miller <[email-masked]>
---
 net/ipv4/route.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index d851cae..17e6fbf 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1968,6 +1968,7 @@ int ip_route_input_noref(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 {
 	int res;
 
+	tos &= IPTOS_RT_MASK;
 	rcu_read_lock();
 
 	/* Multicast recognition logic is moved from route cache to here.
-- 
2.1.0