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authorAnders K. Pedersen <akp@cohaesio.com>2016-10-28 05:54:15 +0000
committerPablo Neira Ayuso <pablo@netfilter.org>2016-11-01 20:50:31 +0100
commit2fa841938c648fe4359691f41e8e1f37ff1a3aa2 (patch)
tree41f308dd997209b2e9fd489227193bc2709fa92d /net/netfilter/Makefile
parent8db4c5be88f62ffd7a552f70687a10c614dc697b (diff)
downloadlinux-2fa841938c648fe4359691f41e8e1f37ff1a3aa2.tar.bz2
netfilter: nf_tables: introduce routing expression
Introduces an nftables rt expression for routing related data with support for nexthop (i.e. the directly connected IP address that an outgoing packet is sent to), which can be used either for matching or accounting, eg. # nft add rule filter postrouting \ ip daddr 192.168.1.0/24 rt nexthop != 192.168.0.1 drop This will drop any traffic to 192.168.1.0/24 that is not routed via 192.168.0.1. # nft add rule filter postrouting \ flow table acct { rt nexthop timeout 600s counter } # nft add rule ip6 filter postrouting \ flow table acct { rt nexthop timeout 600s counter } These rules count outgoing traffic per nexthop. Note that the timeout releases an entry if no traffic is seen for this nexthop within 10 minutes. # nft add rule inet filter postrouting \ ether type ip \ flow table acct { rt nexthop timeout 600s counter } # nft add rule inet filter postrouting \ ether type ip6 \ flow table acct { rt nexthop timeout 600s counter } Same as above, but via the inet family, where the ether type must be specified explicitly. "rt classid" is also implemented identical to "meta rtclassid", since it is more logical to have this match in the routing expression going forward. Signed-off-by: Anders K. Pedersen <akp@cohaesio.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/Makefile')
-rw-r--r--net/netfilter/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 8edd791743fe..5bbf767672ec 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -84,6 +84,7 @@ obj-$(CONFIG_NF_TABLES_NETDEV) += nf_tables_netdev.o
obj-$(CONFIG_NFT_COMPAT) += nft_compat.o
obj-$(CONFIG_NFT_EXTHDR) += nft_exthdr.o
obj-$(CONFIG_NFT_META) += nft_meta.o
+obj-$(CONFIG_NFT_RT) += nft_rt.o
obj-$(CONFIG_NFT_NUMGEN) += nft_numgen.o
obj-$(CONFIG_NFT_CT) += nft_ct.o
obj-$(CONFIG_NFT_LIMIT) += nft_limit.o