| commit | 966aaee7d3e2b7836fa74e8f5b0a6231deaa9eaa | |
| author | Daniel Borkmann <borkmann@iogearbox.net> | |
| Wed, 28 Nov 2012 13:07:09 +0000 (28 14:07 +0100) | ||
| committer | Daniel Borkmann <borkmann@iogearbox.net> | |
| Wed, 28 Nov 2012 13:07:09 +0000 (28 14:07 +0100) | ||
| tree | bf83de3104916196b339443b736d92d7867501ec | treesnapshot (tar.gz zip) |
| parent | 67ed1f8ea5d056a16f038967b424ce9fd2cd1e99 | commitdiff |
bpfc: support vlan ops
E.g. to filter for packets with present vlan tag, use:
_main:
ld #vlanp
jgt #0, keep, drop
keep:
ret #-1
drop:
ret #0
Also, ld #vlant loads the tag into the accumulator. Note
that you should first check for a valid #vlanp.
Signed-off-by: Daniel Borkmann <borkmann@iogearbox.net>
E.g. to filter for packets with present vlan tag, use:
_main:
ld #vlanp
jgt #0, keep, drop
keep:
ret #-1
drop:
ret #0
Also, ld #vlant loads the tag into the accumulator. Note
that you should first check for a valid #vlanp.
Signed-off-by: Daniel Borkmann <borkmann@iogearbox.net>
| TODO | diffblobblamehistory | |
| src/bpf.c | diffblobblamehistory | |
| src/bpf.h | diffblobblamehistory | |
| src/bpf_lexer.l | diffblobblamehistory | |
| src/bpf_parser.y | diffblobblamehistory |