Factor startWithCgroupFD out of start to reduce the start complexity.
This also implements a more future-proof way of calling p.comm.closeChild.
Co-authored-by: lifubang <lifubang@acmcoder.com>
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
The (*setns).start is supposed to close child fds once the child has
started, or upon an error. Commit 5af4dd4e6 added a bug -- child fds
are not closed if prepareCgroupFD fails.
Fix by adding a missing call to closeChild.
I'm not sure how to write a good test case for it. Found when working
on PR 4928 (and tested in there).
Fixes: 5af4dd4e6
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
strings.Title is deprecated since Go 1.18. Replace it with a simple
manual capitalization of the first character in criuNsToKey().
Signed-off-by: Osama Abdelkader <osama.abdelkader@gmail.com>
Co-authored-by: Kir Kolyshkin <kolyshkin@gmail.com>
Now that we've updated to golang.org/x/sys@v0.37.0, CPUSet has a Fill
helper that does the equivalent to our underflow trick to make setting
all CPUs efficient.
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
This package was marked deprecated in commit 9b60a93cf3
("libcontainer/userns: migrate to github.com/moby/sys/userns"), which
was included in runc 1.2. Users have thus had a year to migrate to
github.com/moby/sys/userns and it's okay for us to remove this wrapper
package.
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
ba0b5e26 ("libcontainer: remove all mount logic from nsexec") introduced
a request function that handles two tasks:
- the exchanges with the request and response channels
- the closing of the request channel.
From 1.21, the closing of the request channel may be done with
context.AfterFunc(). Moreover, context.AfterFunc() is guaranteed to run
once.
Link: https://pkg.go.dev/context#AfterFunc
Suggested-by: Aleksa Sarai <cyphar@cyphar.com>
Signed-off-by: Ariel Otilibili <otilibil@eurecom.fr>
This removes `mips64le` (no longer supported by the image / upstream in Debian Trixie+) and adds `riscv64`.
Signed-off-by: Tianon Gravi <admwiggin@gmail.com>
Set the process personality early to ensure it takes effect before
seccomp is initialized. If seccomp filters are applied first and they
block personality-related system calls (e.g., `personality(2)`),
subsequent attempts to set the personality will fail.
Signed-off-by: lifubang <lifubang@acmcoder.com>
The linux.intelRdt.enableMonitoring field enables the creation of
a per-container monitoring group. The monitoring group is removed when
the container is destroyed.
Signed-off-by: Markus Lehtonen <markus.lehtonen@intel.com>
The main benefit here is when we are using a systemd cgroup driver,
we actually ask systemd to add a PID, rather than doing it ourselves.
This way, we can add rootless exec PID to a cgroup.
This requires newer opencontainers/cgroups and coreos/go-systemd.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Remove cgroupPaths field from struct setnsProcess, because:
- we can get base cgroup paths from p.manager.GetPaths();
- we can get sub-cgroup paths from p.process.SubCgroupPaths.
But mostly because we are going to need separate cgroup paths when
adopting cgroups.AddPid.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
This fixes the following warning (seen on Fedora 42 and Ubuntu 24.04):
+ sudo chown -R rootless.rootless /home/rootless
chown: warning: '.' should be ':': ‘rootless.rootless’
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
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