hello GLynn,
Only oneline i would like to add to this is test it,
try it and see the results, or look at code.....
happy checksumming....
malhacker
--- Glynn Clements <glynn.clements@virgin.net> wrote:
>
> Mal Hacker wrote:
>
> > TCP checksums are evaluated by attaching a pseudo
> > header in the start of the TCP segment which u are
> > going to be sent. Actually that pseudo header is
> like
> > this...
> >
> > struct pseudohdr
> > {
> > struct in_addr source_address; // 32 bit
> netid/hostid
> > struct in_addr dest_address; // 32 bit
> netid/hostid
> > unsigned char place_holder;
> > unsigned char protocol;
> > unsigned short length;
> > struct tcphdr tcp;
> > } phdr;
> >
> >
> > where the protocol is IPPROTO_TCP , place holder
> is
> > zero and length is htons(sizeof(struct tcphdr));
>
> length is the length of the header and data, not
> just the header.
>
> --
> Glynn Clements <glynn.clements@virgin.net>
> -
> : send the line
> "unsubscribe linux-net" in
> the body of a message to majordomo@vger.kernel.org
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