hi,
i'm currently faced with an alignment problem of ebt_among with ppc
architecture.
Trying to add a rule using the among extension leads to the following
syslog entry:
ebtables: among: wrong size: 2104 against expected 2100, rounded to 2100
I tried to analyze the problem and I observed that there have been several
problems regarding EBT_ALIGN in the past with x86_64 and sparc
architecure. But I didn't find anything about ppc.
What I've seen is that ebt_among extension of ebtables uses
__alignof__(_xt_align) while the corresponding kernel module uses
__alignof__(ebt_replace) to determin the alignment in EBT_ALIGN().
These are the results of these values on different platforms:
x86 x86_64 ppc
__alignof__(_xt_align) 4 8 8
__alignof__(ebt_replace) 4 8 4
So I assume here we can see why ebtales fails to add rules which use the
among extension.
I'm using kernel 2.6.33 and ebtables 2.0.10-4
Is this a known issue or are there any suggestions how to circumvent this
problem?
Thankyou very much.
Best regards
Joerg
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