Hello!
On 3/20/20 9:46 AM, John Paul Adrian Glaubitz wrote:
Would it be possible to add seccomp support for m68k in the kernel?
There are some packages like kscreensaver in Debian that require
libseccomp-dev and it would therefore be desirable if we could
that library on Linux/m68k as well.
From what I have learned from Helge Deller who added seccomp for
hppa, it doesn't seem much that is necessary to get seccomp working
on an architecture.
So, if anyone could work on the kernel part, I could do the work on
libseccomp.
I just had another look at the topic and it seems with just need a minimal
patch to add SECCOMP and SECCOMP_FILTER support when looking at the changes
for riscv64 [1].
The most complex change seem to be the changes in entry.S to add some additional
checks for syscall numbers. I think we could just do this for m68k (and SH) as
well.
The userland land part is trivial as well, I actually added SuperH support to
libseccomp today which was rather easy but my pull request was rejected for the
time being due to SuperH not supporting SECCOMP_FILTER yet (only basic SECCOMP).
So, if someone could do the kernel pieces for m68k, I would work on the userspace
changes in libsseccomp.
Adrian
[1] https://github.com/torvalds/linux/commit/5340627e3fe08030988bdda46dd86cd5d5fb7517
[2] https://github.com/seccomp/libseccomp/pull/271
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@xxxxxxxxxx
`. `' Freie Universitaet Berlin - glaubitz@xxxxxxxxxxxxxxxxxxx
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
