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netfilter: flowtable: fix nft_flow_route source address for nat case 

For snat and dnat cases, the saddr should be taken from reverse tuple.

Fixes: 3412e16418 (netfilter: flowtable: nft_flow_route use more data for reverse route)
Signed-off-by: wenxu <wenxu@chinatelecom.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
wenxu 2022-05-25 21:25:46 -04:00 committed by Pablo Neira Ayuso
parent f1896d45fe
commit 97629b237a
1 changed files with 2 additions and 2 deletions
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4
net/netfilter/nft_flow_offload.c
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@ -232,7 +232,7 @@ static int nft_flow_route(const struct nft_pktinfo *pkt,
switch (nft_pf(pkt)) {
case NFPROTO_IPV4:
fl.u.ip4.daddr = ct->tuplehash[dir].tuple.src.u3.ip;
fl.u.ip4.saddr = ct->tuplehash[dir].tuple.dst.u3.ip;
fl.u.ip4.saddr = ct->tuplehash[!dir].tuple.src.u3.ip;
fl.u.ip4.flowi4_oif = nft_in(pkt)->ifindex;
fl.u.ip4.flowi4_iif = this_dst->dev->ifindex;
fl.u.ip4.flowi4_tos = RT_TOS(ip_hdr(pkt->skb)->tos);
@ -241,7 +241,7 @@ static int nft_flow_route(const struct nft_pktinfo *pkt,
break;
case NFPROTO_IPV6:
fl.u.ip6.daddr = ct->tuplehash[dir].tuple.src.u3.in6;
fl.u.ip6.saddr = ct->tuplehash[dir].tuple.dst.u3.in6;
fl.u.ip6.saddr = ct->tuplehash[!dir].tuple.src.u3.in6;
fl.u.ip6.flowi6_oif = nft_in(pkt)->ifindex;
fl.u.ip6.flowi6_iif = this_dst->dev->ifindex;
fl.u.ip6.flowlabel = ip6_flowinfo(ipv6_hdr(pkt->skb));