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Commit 974292de authored by Florian Westphal's avatar Florian Westphal Committed by Pablo Neira Ayuso
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netfilter: nf_tables: only allow in/output for arp packets 



arp packets cannot be forwarded.

They can be bridged, but then they can be filtered using
either ebtables or nftables bridge family.

The bridge netfilter exposes a "call-arptables" switch which
pushes packets into arptables, but lets not expose this for nftables, so better
close this asap.

Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent 97772bcd

net/ipv4/netfilter/nf_tables_arp.c

+1 −2
Original line number Diff line number Diff line
@@ -72,8 +72,7 @@ static const struct nf_chain_type filter_arp = { 
	.family		= NFPROTO_ARP,

	.owner		= THIS_MODULE,

	.hook_mask	= (1 << NF_ARP_IN) |

			  (1 << NF_ARP_OUT) |

			  (1 << NF_ARP_FORWARD),

			  (1 << NF_ARP_OUT),

};



static int __init nf_tables_arp_init(void)