diff mbox series

[nf-next,2/2] netfilter: flowtable: fix nft_flow_route use saddr for nat case

Message ID 1653528346-5266-2-git-send-email-wenxu@chinatelecom.cn
State Accepted
Delegated to: Pablo Neira
Headers show
Series [nf-next,1/2] netfilter: flowtable: fix nft_flow_route miss FLOWI_FLAG_ANYSRC flag | expand

Commit Message

wenxu@chinatelecom.cn May 26, 2022, 1:25 a.m. UTC 
From: wenxu <wenxu@chinatelecom.cn>

For snat and dnat case the saddr should get from reverse tuple.

Fixes: 3412e1641828 (netfilter: flowtable: nft_flow_route use more data for reverse route)
Signed-off-by: wenxu <wenxu@chinatelecom.cn>
---
 net/netfilter/nft_flow_offload.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Pablo Neira Ayuso May 31, 2022, 9:34 p.m. UTC | #1 
Also applied.
diff mbox series

Patch

diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c
index 20e5f37..a25c88b 100644
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -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));