mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-25 03:17:13 +00:00
4f0dadbf38
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.
Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.
A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.
This commit was automatically created and can be verified using
nix-build a08b3a4d19.tar.gz \
--argstr baseRev b32a094368
result/bin/apply-formatting $NIXPKGS_PATH
114 lines
3.6 KiB
Nix
114 lines
3.6 KiB
Nix
import ./make-test-python.nix (
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{ pkgs, ... }:
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{
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name = "hardened";
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meta = with pkgs.lib.maintainers; {
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maintainers = [ joachifm ];
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};
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nodes.machine =
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{
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lib,
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pkgs,
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config,
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...
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}:
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{
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users.users.alice = {
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isNormalUser = true;
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extraGroups = [ "proc" ];
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};
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users.users.sybil = {
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isNormalUser = true;
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group = "wheel";
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};
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imports = [ ../modules/profiles/hardened.nix ];
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environment.memoryAllocator.provider = "graphene-hardened";
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nix.settings.sandbox = false;
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virtualisation.emptyDiskImages = [ 4096 ];
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boot.initrd.postDeviceCommands = ''
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${pkgs.dosfstools}/bin/mkfs.vfat -n EFISYS /dev/vdb
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'';
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virtualisation.fileSystems = {
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"/efi" = {
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device = "/dev/disk/by-label/EFISYS";
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fsType = "vfat";
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options = [ "noauto" ];
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};
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};
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boot.extraModulePackages = pkgs.lib.optional (pkgs.lib.versionOlder config.boot.kernelPackages.kernel.version "5.6") config.boot.kernelPackages.wireguard;
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boot.kernelModules = [ "wireguard" ];
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};
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testScript =
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let
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hardened-malloc-tests = pkgs.graphene-hardened-malloc.ld-preload-tests;
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in
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''
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machine.wait_for_unit("multi-user.target")
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with subtest("AppArmor profiles are loaded"):
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machine.succeed("systemctl status apparmor.service")
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# AppArmor securityfs
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with subtest("AppArmor securityfs is mounted"):
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machine.succeed("mountpoint -q /sys/kernel/security")
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machine.succeed("cat /sys/kernel/security/apparmor/profiles")
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# Test loading out-of-tree modules
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with subtest("Out-of-tree modules can be loaded"):
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machine.succeed("grep -Fq wireguard /proc/modules")
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# Test kernel module hardening
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with subtest("No more kernel modules can be loaded"):
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# note: this better a be module we normally wouldn't load ...
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machine.wait_for_unit("disable-kernel-module-loading.service")
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machine.fail("modprobe dccp")
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# Test userns
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with subtest("User namespaces are restricted"):
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machine.succeed("unshare --user true")
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machine.fail("su -l alice -c 'unshare --user true'")
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# Test dmesg restriction
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with subtest("Regular users cannot access dmesg"):
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machine.fail("su -l alice -c dmesg")
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# Test access to kcore
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with subtest("Kcore is inaccessible as root"):
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machine.fail("cat /proc/kcore")
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# Test deferred mount
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with subtest("Deferred mounts work"):
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machine.fail("mountpoint -q /efi") # was deferred
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machine.execute("mkdir -p /efi")
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machine.succeed("mount /dev/disk/by-label/EFISYS /efi")
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machine.succeed("mountpoint -q /efi") # now mounted
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# Test Nix dæmon usage
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with subtest("nix-daemon cannot be used by all users"):
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machine.fail("su -l nobody -s /bin/sh -c 'nix --extra-experimental-features nix-command ping-store'")
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machine.succeed("su -l alice -c 'nix --extra-experimental-features nix-command ping-store'")
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# Test kernel image protection
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with subtest("The kernel image is protected"):
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machine.fail("systemctl hibernate")
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machine.fail("systemctl kexec")
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with subtest("The hardened memory allocator works"):
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machine.succeed("${hardened-malloc-tests}/bin/run-tests")
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'';
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}
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)
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