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netfilter: nf_tables: implement Passive OS fingerprint module in nft_osf

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Add basic module functions into nft_osf.[ch] in order to implement OSF
module in nf_tables.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Fernando Fernandez Mancera
2018-07-25 01:32:46 +02:00
committed by Pablo Neira Ayuso
parent f932495208
commit b96af92d6e
4 changed files with 121 additions and 0 deletions
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7
net/netfilter/Kconfig
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@@ -627,6 +627,13 @@ config NFT_SOCKET
This option allows matching for the presence or absence of a
corresponding socket and its attributes.
config NFT_OSF
tristate "Netfilter nf_tables passive OS fingerprint support"
depends on NETFILTER_ADVANCED
select NETFILTER_NETLINK_OSF
help
This option allows matching packets from an specific OS.
if NF_TABLES_NETDEV
config NF_DUP_NETDEV