Re: Invalid size of target

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On Monday 2008-07-14 21:26, Kevin Sookocheff wrote:

>Hi everyone,
>
>I am having a problem developing an IPTables module.
>
>I get the following error (CSUM is the name of my module):
>
>ip_tables: CSUM target: invalid size 0 != 12
>
>The first question is why this error appears,

Because your xt_CSUM.c file and libxt_CSUM.c do not agree on
the private structure (size).

>and why does it only appear for SMP kernels?

Perhaps you only have a specific change in an SMP kernel?
Or maybe because your private structure contains bad members.
Nobody knows until code is seen.

Read more about the process in
http://jengelh.medozas.de/documents/Netfilter_Modules.pdf
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