Hello!
I am trying to introduce a new IP option that has some specific data
for the kernel functionality that I am working on. I assume that a new
IP option number would be defined in include/linux.ip.h. Is that right?
Can anybody point me to something that explains where IP options are
added to the outgoing IP packets and where the incoming packets are
stripped of the IP options? I tried looking at the kernel but it's just
hard to put things together.
Also, as far as I understand, IP options are associated with the
socket, so all outgoing communication on a given socket will have the
options added to it. What happens when data is received? Can I link
somehow the data with the IP option until it is delivered to the user
level process? I need to force the user process in doing something if
it receives data inside a packet with my newly introduced IP option.
I hope this all makes sense.
Cheers,
Cristian
