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* extensions: libxt_bpf: clarify --bytecode argumentPablo Neira Ayuso2013-04-191-1/+1
| | | | | | | | | Mart Frauenlob suggested a change to explain the --bytecode better. I have added some reference to the example bytecode in the format that this argument accepts. Reported-by: Mart Frauenlob <> Signed-off-by: Pablo Neira Ayuso <>
* extensions: add libxt_bpf extensionWillem de Bruijn2013-04-021-0/+34
Add user-space code to support the new BPF iptables extension. Pablo has mangled the original patch to: * include a copy of include/linux/netfilter/xt_bpf.h in the tree. * I have also remove the --bytecode-file option. The original proposal was to accept BPF code in a file in human readable format. Now, with the nfbpf_compile utility, it's very easy to generate the filter using tcpdump-like syntax. * I have remove the trailing comma in the backtick format, the parser works just fine for me here. * Fix error message if --bytecode is missing. Signed-off-by: Willem de Bruijn <> Signed-off-by: Pablo Neira Ayuso <>