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ipv4: mask tos for input route 

commit 6e28099d38c0e50d62c1afc054e37e573adf3d21 upstream.

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

Problem [1] noticed by Shmulik Ladkani <shmulik.ladkani@gmail.com>

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

Fixes: 89aef8921b ("ipv4: Delete routing cache.")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
This commit is contained in:
Julian Anastasov 2017-02-26 17:14:35 +02:00 committed by syphyr
parent 7e46c9fd65
commit ac94c9a4cb
1 changed files with 1 additions and 0 deletions
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net/ipv4/route.c
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@ -1801,6 +1801,7 @@ 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.