commit | 47c8cf7a015c3f4d37e47a61a133105d11803ccb | [log] [tgz] |
---|---|---|
author | Robert Swiecki <robert@swiecki.net> | Thu May 31 14:45:44 2018 +0200 |
committer | Robert Swiecki <robert@swiecki.net> | Thu May 31 14:45:44 2018 +0200 |
tree | f8d221412f2f10800c4f50182f6e3b0f7dc590b2 | |
parent | 7d57fc81bec00eee6873a456aae5ac1fe223d4f0 [diff] |
net: support owning interfaces with libnl too
This is NOT an official Google product.
NsJail is a process isolation tool for Linux. It utilizes Linux namespace subsystem, resource limits, and the seccomp-bpf syscall filters of the Linux kernel.
It can help you with (among other things):
Features:
/proc
and tmpfs
mount pointsPS: You‘ll need to have a valid file-system tree in /chroot
. If you don’t have it, change /chroot
to /
PS: You‘ll need to have a valid file-system tree in /chroot
. If you don’t have it, change /chroot
to /
PS: You‘ll need to have a valid file-system tree in /chroot
. If you don’t have it, change /chroot
to /
PS: You‘ll need to have a valid file-system tree in /chroot
. If you don’t have it, change /chroot
to /
You will also find all examples in the configs directory.
config.proto contains ProtoBuf schema for nsjail's configuration format.
You can examine an example config file in configs/bash-with-fake-geteuid.cfg.
Usage:
You can also override certain options with command-line options. Here, the executed binary (/bin/bash) is overriden with /usr/bin/id, yet options from configs/bash-with-fake-geteuid.cfg still apply
You might also want to try using configs/home-documents-with-xorg-no-net.cfg.
The configs/firefox-with-net.cfg config file will allow you to run firefox inside a sandboxed environment:
A more complex setup, which utilizes virtualized (cloned) Ethernet interfaces (to separate it from the main network namespace), can be found in configs/firefox-with-cloned-net.cfg. Remember to change relevant UIDs and Ethernet interface names before use.
As using cloned Ethernet interfaces (MACVTAP) required root privileges, you'll have to run it under sudo:
The command-line options should be self-explanatory, while the proto-buf config options are described in config.proto
To launch nsjail in a docker container clone the repository and build the docker image:
This will build up an image containing njsail and kafel.
From now you can either use it in another Dockerfile (FROM nsjail
) or directly: