diff options
| author |   Pablo Neira Ayuso <pablo@netfilter.org> | 2021-11-09 13:42:01 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-11-30 23:37:16 +0100 |
| commit | f87b9464d152f7705f1e37288dc48f5af6a2fc0c (patch) | |
| tree | 9e607d95866365e7a16ce8c0b03e4fa62ce8e521 /net/netfilter | |
| parent | netfilter: ctnetlink: remove useless type conversion to bool (diff) | |
| download | linux-dev-f87b9464d152f7705f1e37288dc48f5af6a2fc0c.tar.xz linux-dev-f87b9464d152f7705f1e37288dc48f5af6a2fc0c.zip | |
netfilter: nft_fwd_netdev: Support egress hook
Allow packet redirection to another interface upon egress.
[lukas: set skb_iif, add commit message, original patch from Pablo. ]
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nft_fwd_netdev.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/netfilter/nft_fwd_netdev.c b/net/netfilter/nft_fwd_netdev.c index cd59afde5b2f..fa9301ca6033 100644 --- a/net/netfilter/nft_fwd_netdev.c +++ b/net/netfilter/nft_fwd_netdev.c @@ -27,9 +27,11 @@ static void nft_fwd_netdev_eval(const struct nft_expr *expr, { struct nft_fwd_netdev *priv = nft_expr_priv(expr); int oif = regs->data[priv->sreg_dev]; + struct sk_buff *skb = pkt->skb; /* This is used by ifb only. */ - skb_set_redirected(pkt->skb, true); + skb->skb_iif = skb->dev->ifindex; + skb_set_redirected(skb, nft_hook(pkt) == NF_NETDEV_INGRESS); nf_fwd_netdev_egress(pkt, oif); regs->verdict.code = NF_STOLEN; @@ -198,7 +200,8 @@ static int nft_fwd_validate(const struct nft_ctx *ctx, const struct nft_expr *expr, const struct nft_data **data) { - return nft_chain_validate_hooks(ctx->chain, (1 << NF_NETDEV_INGRESS)); + return nft_chain_validate_hooks(ctx->chain, (1 << NF_NETDEV_INGRESS) | + (1 << NF_NETDEV_EGRESS)); } static struct nft_expr_type nft_fwd_netdev_type; |