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2018-08-07netfilter: nft_osf: use NFT_OSF_MAXGENRELEN instead of IFNAMSIZFernando Fernandez Mancera
As no "genre" on pf.os exceed 16 bytes of length, we reduce NFT_OSF_MAXGENRELEN parameter to 16 bytes and use it instead of IFNAMSIZ. Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-08-03netfilter: nfnetlink_osf: rename nf_osf header file to nfnetlink_osfFernando Fernandez Mancera
The first client of the nf_osf.h userspace header is nft_osf, coming in this batch, rename it to nfnetlink_osf.h as there are no userspace clients for this yet, hence this looks consistent with other nfnetlink subsystem. Suggested-by: Jan Engelhardt <jengelh@inai.de> Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-07-30netfilter: nf_tables: implement Passive OS fingerprint module in nft_osfFernando Fernandez Mancera
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>