meta pkttype always says 0 (host) from the output path. The code to
infer the packet type from the IP address is already in place for
loopback traffic, extend it to infer it the packet type from the output,
postrouting and egress path too.
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/netfilter/nft_meta.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
index 516e74635bae..58a87205be8e 100644
--- a/net/netfilter/nft_meta.c
+++ b/net/netfilter/nft_meta.c
@@ -371,7 +371,11 @@ void nft_meta_get_eval(const struct nft_expr *expr,
break;
#endif
case NFT_META_PKTTYPE:
- if (skb->pkt_type != PACKET_LOOPBACK) {
+ if (skb->pkt_type != PACKET_LOOPBACK &&
+ nft_hook(pkt) != NF_INET_LOCAL_OUT &&
+ nft_hook(pkt) != NF_INET_POST_ROUTING &&
+ (nft_pf(pkt) == NFPROTO_NETDEV &&
+ nft_hook(pkt) != NF_NETDEV_EGRESS)) {
nft_reg_store8(dest, skb->pkt_type);
break;
}
--
2.30.2
