81 lines
2.6 KiB
Nix
81 lines
2.6 KiB
Nix
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import ./make-test-python.nix ({ lib, pkgs, ... }:
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{
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name = "swap-random-encryption";
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nodes.machine =
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{ config, pkgs, lib, ... }:
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{
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environment.systemPackages = [ pkgs.cryptsetup ];
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virtualisation.useDefaultFilesystems = false;
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virtualisation.rootDevice = "/dev/vda1";
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boot.initrd.postDeviceCommands = ''
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if ! test -b /dev/vda1; then
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${pkgs.parted}/bin/parted --script /dev/vda -- mklabel msdos
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${pkgs.parted}/bin/parted --script /dev/vda -- mkpart primary 1MiB -250MiB
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${pkgs.parted}/bin/parted --script /dev/vda -- mkpart primary -250MiB 100%
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sync
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fi
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FSTYPE=$(blkid -o value -s TYPE /dev/vda1 || true)
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if test -z "$FSTYPE"; then
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${pkgs.e2fsprogs}/bin/mke2fs -t ext4 -L root /dev/vda1
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fi
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'';
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virtualisation.fileSystems = {
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"/" = {
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device = "/dev/disk/by-label/root";
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fsType = "ext4";
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};
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};
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swapDevices = [
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{
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device = "/dev/vda2";
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randomEncryption = {
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enable = true;
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cipher = "aes-xts-plain64";
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keySize = 512;
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sectorSize = 4096;
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};
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}
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];
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};
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testScript = ''
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machine.wait_for_unit("multi-user.target")
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with subtest("Swap is active"):
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# Doesn't matter if the numbers reported by `free` are slightly off due to unit conversions.
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machine.succeed("free -h | grep -E 'Swap:\s+2[45][0-9]Mi'")
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with subtest("Swap device has 4k sector size"):
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import json
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result = json.loads(machine.succeed("lsblk -Jo PHY-SEC,LOG-SEC /dev/mapper/dev-vda2"))
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block_devices = result["blockdevices"]
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if len(block_devices) != 1:
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raise Exception ("lsblk output did not report exactly one block device")
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swapDevice = block_devices[0];
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if not (swapDevice["phy-sec"] == 4096 and swapDevice["log-sec"] == 4096):
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raise Exception ("swap device does not have the sector size specified in the configuration")
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with subtest("Swap encrypt has assigned cipher and keysize"):
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import re
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results = machine.succeed("cryptsetup status dev-vda2").splitlines()
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cipher_pattern = re.compile(r"\s*cipher:\s+aes-xts-plain64\s*")
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if not any(cipher_pattern.fullmatch(line) for line in results):
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raise Exception ("swap device encryption does not use the cipher specified in the configuration")
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key_size_pattern = re.compile(r"\s*keysize:\s+512\s+bits\s*")
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if not any(key_size_pattern.fullmatch(line) for line in results):
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raise Exception ("swap device encryption does not use the key size specified in the configuration")
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'';
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})
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