OpenWrt – Rev 2

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From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 23 Mar 2018 19:12:30 +0100
Subject: [PATCH] netfilter: nf_flow_table: fix offloading connections with
 SNAT+DNAT

Pass all NAT types to the flow offload struct, otherwise parts of the
address/port pair do not get translated properly, causing connection
stalls

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -84,7 +84,7 @@ flow_offload_alloc(struct nf_conn *ct, s
 
        if (ct->status & IPS_SRC_NAT)
                flow->flags |= FLOW_OFFLOAD_SNAT;
-       else if (ct->status & IPS_DST_NAT)
+       if (ct->status & IPS_DST_NAT)
                flow->flags |= FLOW_OFFLOAD_DNAT;
 
        return flow;