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authorWillem de Bruijn <willemb@google.com>2013-03-12 05:44:12 +0000
committerPablo Neira Ayuso <pablo@netfilter.org>2013-04-02 00:08:49 +0200
commit1ac30c97c339957b6e3c5cf571de7bc38c827730 (patch)
treed00e6f632b49a2a3ffcae1aa8d38701db9e1ee33 /autogen.sh
parente0a0dd703b3448f0f07fc59b7232bf1f1cce7b86 (diff)
utils: nfbpf_compile
A BPF compiler to convert tcpdump expressions to the decimal format accepted by the libxt_bpf. Generate a file and pass that to iptables: nfbpf_compile RAW 'udp dst port 9000' > test.bpf iptables -A OUTPUT -m bpf --bytecode-file test.bpf -j LOG Or pass the output directly to iptables using backticks: iptables -A INPUT -m bpf --bytecode \ "`./nfbpf_compile RAW 'udp dst port 9000'" -j LOG This utility depends on libpcap. The library is only compiled if the option --enable-bpf-compiler is explicitly passed to ./configure and libpcap is found. Pablo has mangled the original patch to rename the utility to nfbpf_compile. Also modified the output to match exactly what -m bpf --bytecode needs. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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