[LARTC] REQ: A "tcfilter" program

[LARTC] REQ: A "tcfilter" program

[gypsy]

Will someone please write a program that can be used to assist with u32
matches?

What I envision is something like ipchains' "--check" option, which
tests a packet against the selected chain.  tcfilter should check
against the loaded filters.

It would be REALLY nice if:
1) counters (showing the number of hits (in packets)) could be included.
2) a debug mode showing what the packet header looks like, with options
for hex or decimal - somewhat like an ASM DEBUG dump.  This would show
the packet being tested and, for each u32 entry, the decision to match
or not...
3) the ability to test a packet against a single u32 entry.
4) a "trace" that would, where more than one filter matches, show which
one was used.

Another nice feature would be the ability to check for a fwmark.

I can't pay for this, but perhaps I have something other than cash that
you want?

gypsy
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Re: [LARTC] REQ: A "tcfilter" program

[Antonios Chalkiopoulos]

>It would be REALLY nice if:
>1) counters (showing the number of hits (in packets)) could be included.
>2) a debug mode showing what the packet header looks like, with options
>for hex or decimal - somewhat like an ASM DEBUG dump.  This would show
>the packet being tested and, for each u32 entry, the decision to match
>or not...
>3) the ability to test a packet against a single u32 entry.
>4) a "trace" that would, where more than one filter matches, show which
>one was used.

For (1) you can take a look at a few PHP scripts that i wrote to count :
bytes, packets and dropped packets that go through qdiscs and their classes 
(only GRED is not properly parsed yet)

see 143.233.4.210/qos/
files: tc.phps and graph.phps

Work is of course in progress.. 
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