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From: Cedric Velandres <cedric.velandres@eee.upd.edu.ph>
To: kernelnewbies@kernelnewbies.org
Subject: Adding a custom layer 3 protocol driver
Date: Fri, 25 Jun 2021 18:59:53 +0800	[thread overview]
Message-ID: <CANyLa3UscE_xm+mbLMyP2WarnA8jku8Y3Gi8UP+a1rseMXU02Q@mail.gmail.com> (raw)


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Hi everyone,

We're currently developing a new communication using custom layer 2 and 3
that we'll be using in a cubesat and I'm looking on how to create the layer
3 driver for linux (similar to af_inet.c but the headers are completely
different). I've read something similar in a thread about a previously
asked question here, but it didn't really answer my questions. And so, my
questions are:

1. Will it suffice to patch linux/socket.h and insert the PF_xxxx before
PF_MAX then use the added PF_xxxx as family in struct net_proto_family?
2. Is there another way to do the above without patching and only in an
out-of-tree module?
3. How do I expose the new AF_xxxx to userspace? It seems like macros for
AF_xxxx are placed in bits/socket.h, but I haven't found a way to patch it.

Thanks,
Cedric

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                 reply	other threads:[~2021-06-25 11:00 UTC|newest]

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