In this case, I have used a tool written by Bill Fenner called
BpfExpression for Arista. Not sure if the code is GNU licensed. He's
in the mailing list and I will let him comment.
ani
On Fri, Feb 1, 2013 at 5:07 PM, Michael Richardson <m...@sandelman.ca> wrote:
>
>>>>>> "Ani" == Ani Sinha <a...@aristanetworks.com> writes:
> Ani> hello folks :
>
> Ani> As you guys have been aware, I am hacking libpcap for a
> Ani> while. Me and Bill noticed something seriously broken for any
> Ani> filter expression that has a "not vlan" in it. For example,
> Ani> take a look at the filter code generated by libpcap with an
> Ani> expression like "not vlan and tcp port 80" :
>
> Ani> BpfExpression '(not vlan and tcp port 80)' { 0x28, 0, 0,
>
> Do we have any way to test libpcap expression outputs other than -d
> options to tcpdump? I'm thinking regression tests here.
>
> --
> ] Never tell me the odds! | ipv6 mesh networks [
> ] Michael Richardson, Sandelman Software Works | network architect [
> ] m...@sandelman.ca http://www.sandelman.ca/ | ruby on rails
> [
>
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