diff options
Diffstat (limited to 'net/netfilter/nft_chain_filter.c')
| -rw-r--r-- | net/netfilter/nft_chain_filter.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/net/netfilter/nft_chain_filter.c b/net/netfilter/nft_chain_filter.c index c78d01bc02e9..ff8528ad3dc6 100644 --- a/net/netfilter/nft_chain_filter.c +++ b/net/netfilter/nft_chain_filter.c @@ -161,16 +161,49 @@ static unsigned int nft_do_chain_inet(void *priv, struct sk_buff *skb, return nft_do_chain(&pkt, priv); } +static unsigned int nft_do_chain_inet_ingress(void *priv, struct sk_buff *skb, + const struct nf_hook_state *state) +{ + struct nf_hook_state ingress_state = *state; + struct nft_pktinfo pkt; + + switch (skb->protocol) { + case htons(ETH_P_IP): + /* Original hook is NFPROTO_NETDEV and NF_NETDEV_INGRESS. */ + ingress_state.pf = NFPROTO_IPV4; + ingress_state.hook = NF_INET_INGRESS; + nft_set_pktinfo(&pkt, skb, &ingress_state); + + if (nft_set_pktinfo_ipv4_ingress(&pkt, skb) < 0) + return NF_DROP; + break; + case htons(ETH_P_IPV6): + ingress_state.pf = NFPROTO_IPV6; + ingress_state.hook = NF_INET_INGRESS; + nft_set_pktinfo(&pkt, skb, &ingress_state); + + if (nft_set_pktinfo_ipv6_ingress(&pkt, skb) < 0) + return NF_DROP; + break; + default: + return NF_ACCEPT; + } + + return nft_do_chain(&pkt, priv); +} + static const struct nft_chain_type nft_chain_filter_inet = { .name = "filter", .type = NFT_CHAIN_T_DEFAULT, .family = NFPROTO_INET, - .hook_mask = (1 << NF_INET_LOCAL_IN) | + .hook_mask = (1 << NF_INET_INGRESS) | + (1 << NF_INET_LOCAL_IN) | (1 << NF_INET_LOCAL_OUT) | (1 << NF_INET_FORWARD) | (1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_POST_ROUTING), .hooks = { + [NF_INET_INGRESS] = nft_do_chain_inet_ingress, [NF_INET_LOCAL_IN] = nft_do_chain_inet, [NF_INET_LOCAL_OUT] = nft_do_chain_inet, [NF_INET_FORWARD] = nft_do_chain_inet, |