Mangling IP Options fields

[Quinton Hoole <quinton@hoole.biz>]

[-- Attachment #1: Type: text/plain, Size: 1088 bytes --]

Hi

I've posted this to the netfilter users list, but in retrospect it is 
probably a devel question:

This newbie needs to add and/or rewrite data in the IP Options fields.
The MANGLE chain looks like the place to do this, but I don't see the
appropriate target extensions to achieve it.  It seems easy to mangle
most other fields (DSCP, ECN, TOS, TTL etc) but no mention of the
OPTIONS fields.

Is mangling of IP options fields supported by netfilter/iptables?

I've seen Fabrice's reply to a simimlar question some 3 years back:

https://lists.netfilter.org/pipermail/netfilter-devel/2002-March/006957.html

which indicates that I'll need to do some hacking, but hopefully this 
has changed since then, and someone's done it for me ;-)

If not, I'm going to have to make it happen some how.  Any pointers
towards the recommended approach in this regard would be appreciated.
I'm assuming that I'll have to alter the netfilter/iptables code
appropriately, which is not a problem.  I'll start ploughing through the 
patch-o-matic docs in the mean time ;-)

Thanks in advance...

Quinton

[-- Attachment #2: S/MIME Cryptographic Signature --]
[-- Type: application/x-pkcs7-signature, Size: 3244 bytes --]