On 11/16/2015 02:00 PM, vkochan wrote:
Hi,
Before start coding I'd like to know what do you think about such bpfc
feature like - passing <var1>=<value1>...<varN>=<valueN> to bpfc which will
be converted to cpp as -Dvar1=value1..-DvarN=valueN, and in bpf filter
it allows to do #ifdef for specific define and generate bpf opcodes
considering this defined value (e.g. - port/protocol number).
What do you think ?
Sounds good to me, I think such a feature might even be more interesting
for trafgen, there was once a request on this in the past:
https://www.mail-archive.com/netsniff-ng%40googlegroups.com/msg00789.html
I think we could use cpp to do textual replacement to pass in shell vars.
Part of that should already be possible due to your cmdline feature, but
for complex patterns that would be too long (thus cfg file preferred), it
might be interesting as well.
Thanks!
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