Thank you Zlatko.
I actually have no idea how to call init_module() from my Go program. Happy to
do the legwork in figuring this out, but not even sure where to start.
Is there something I should Google to get my search started? What are the
keywords I should look up to begin this process?
Would calling this function preclude me from compiling a static binary?
________________________________
From: golang-nuts@googlegroups.com <golang-nuts@googlegroups.com> on behalf of
Zlatko Čalušić <zcalu...@bitsync.net>
Sent: Monday, February 13, 2017 1:06:54 PM
To: golang-nuts@googlegroups.com
Subject: Re: [go-nuts] two questions
On 13.02.2017 17:50, Simon Perfer wrote:
I've been working on a pet science project: building an initramfs with only one
file. Specifically, an executable written in Go.
The only thing I can't figure out is how to do a "modprobe" in Go without
actually having the modprobe utility. Is there a libkmod library available? If
not, how would I go about creating a wrapper for the libkmod library? Never
done this before.
Finally, if I'm relying on C libraries like libkmod does this preclude me from
creating a statically-compiled binary? Goal being, again, that I am creating an
initramfs with only a single file: the compiled Go binary.
Thanks!
Hello Simon,
that definitely looks like a nice project. I like simplicity. Do share when you
feel ready.
I straced modprobe, and behind the scenes it just calls init_module(). So, it
should be pretty simple to call from Go.
NAME
init_module, finit_module - load a kernel module
DESCRIPTION
init_module() loads an ELF image into kernel space, performs any
necessary symbol
relocations, initializes module parameters to values provided by the
caller, and then
runs the module's init function. This system call requires privilege.
Hope it helps!
--
Zlatko
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