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Revert "xfrm: Accept ESP packets regardless of UDP encapsulation mode"
This reverts commit e061b165c7
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Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 5 additions and 0 deletions
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@ -167,6 +167,11 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
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goto drop_unlock;
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}
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if ((x->encap ? x->encap->encap_type : 0) != encap_type) {
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XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEMISMATCH);
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goto drop_unlock;
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}
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if (x->props.replay_window && xfrm_replay_check(x, skb, seq)) {
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XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATESEQERROR);
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goto drop_unlock;
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