From: Rick Jones <[email protected]>
Date: Thu, 01 Nov 2007 15:04:12 -0700
> David Miller wrote:
> > From: Rick Jones <[email protected]>
> > Date: Thu, 01 Nov 2007 14:48:45 -0700
> >
> >
> >>One could I suppose try to ammend the information passed to allow
> >>tcpdump to say "oh, this was a tx packet on the same machine on
> >>which I am tracing so don't worry about checksum mismatch"
> >
> >
> > We do this already!
>
> I'll try to go pester folks in tcpdump-workers then.
The thing to check is "TP_STATUS_CSUMNOTREADY".
When using mmap(), it will be provided in the descriptor. When using
recvmsg() it will be provided via a PACKET_AUXDATA control message
when enabled via the PACKET_AUXDATA socket option.
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