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* osf: add ttl option supportFernando Fernandez Mancera2018-10-231-1/+1
| | | | | | | | | | | | | | Add support for ttl option in "osf" expression. Example: table ip foo { chain bar { type filter hook input priority filter; policy accept; osf ttl skip name "Linux" } } Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: osf: load pf.os from expr_evaluate_osf()Fernando Fernandez Mancera2018-08-311-1/+0
| | | | | | | | Remove osf_init variable and call nfnl_osf_load_fingerprints() from expr_evaluate_osf() instead of doing that from do_command_add() path. Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: osf: import nfnl_osf.c to load osf fingerprintsFernando Fernandez Mancera2018-08-241-0/+3
| | | | | | | | Import iptables/utils/nfnl_osf.c into nftables tree with some changes in order to load OS fingerprints automatically from pf.os file. Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* include: add missing osf.hPablo Neira Ayuso2018-08-041-0/+6
And update Makefile.am accordingly. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>