extensions: add libxt_bpf extension

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 <willemb@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions