Log Labels?

N. Ersen SISECI siseci at gmail.com
Wed Mar 11 23:46:19 PDT 2009


I have been using this patch for a long time. If you apply if_pflog
patchs to pf and
print-pflog.c to tcpdump you should see label values in log lines.

If you are interested in this patch i can send you its 7.0 version.

# tcpdump -nttttveli pflog0 -s 1024
2009-03-12 08:23:22.206866 rule 2336/0(match): pass in on em0: label 70:
(tos 0x0, ttl 128, id 1054, offset 0, flags [DF], proto: TCP (6),
length: 48) > S, cksum 0x1480 (correct),
3376786061:3376786061(0) win 65535 <mss 1460,nop,nop,sackOK>



Petersen, Mark yazmış:
> Hello,
> I'm trying to find out if it's possible to do IPF like log-tags with pf.
> I found an interesting patch here -
> http://osdir.com/ml/os.freebsd.devel.pf4freebsd/2006-06/msg00062.html
> that enables this.  It doesn't appear to have made it into pflog though.
> Is there a way to use this feature?  I'd much rather be logging a label
> and rule #.  I can see if these patches still work with 7 of course.
> Has anyone tried this?
> Finally - it appears there are only patches for pf, but if I compile
> tcpdump with the pf patches, will it work?  What about using mergecap
> with this?  If I recompile mergecap/tshark would this work?  I know I
> can just try, but no sense reinventing the wheel if someone else spent
> some time trying to do the same.
> Thanks,
> Mark
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