Re: IPSec on Linux Kernel

2007-09-27 Thread Rami Rosen
Hi,Fabio,

  - Assuming that you intend to deal with IPV4, I suggest that you will
start by looking at the ah4.ko module sources, which are in net/ipv4/ah.c,
especially at the ah_output() and the ah_input() methods.

(for ipv6 there are the ah6.c in net/ipv6).

- May I ask: are you aware that the Authentication Header protocol deals
only with authentication and not with encryption? and as a result, the ESP
protocol, which supports authentication and also, when needed, encryption, is
much more widely used?

Regards,
  Rosen Rami
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IPSec on Linux Kernel

2007-09-27 Thread Fabio Souto

Hi,

I'm currently doing some research work and I thought that maybe you guys
could help me out on this.
I'm currently trying to find where can I understand more about the IPSec
implementation on the current Linux Kernel (2.6.22). I need to find where
the AH calls are made so I can reroute those functions calls to an external
module, for a safer AH generation.
It would be helpful to find the source code files where I can study the
IPSec stack in detail, and reroute the function call.
Any hints on these topics?

Thanks in advance

Fabio Souto
Portugal
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