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nixos/pam: add test for ZFS home dataset unlocking

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This commit is contained in:
Nicola Squartini 2023-05-14 21:30:01 +02:00
parent 87cbaf7ce3
commit 56e894b0b1
2 changed files with 84 additions and 0 deletions
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1
nixos/tests/all-tests.nix
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@ -564,6 +564,7 @@ in {
pam-oath-login = handleTest ./pam/pam-oath-login.nix {};
pam-u2f = handleTest ./pam/pam-u2f.nix {};
pam-ussh = handleTest ./pam/pam-ussh.nix {};
pam-zfs-key = handleTest ./pam/zfs-key.nix {};
pass-secret-service = handleTest ./pass-secret-service.nix {};
patroni = handleTestOn ["x86_64-linux"] ./patroni.nix {};
pantalaimon = handleTest ./matrix/pantalaimon.nix {};

83
nixos/tests/pam/zfs-key.nix Normal file
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@ -0,0 +1,83 @@
import ../make-test-python.nix ({ ... }:
let
userPassword = "password";
mismatchPass = "mismatch";
in
{
name = "pam-zfs-key";
nodes.machine =
{ ... }: {
boot.supportedFilesystems = [ "zfs" ];
networking.hostId = "12345678";
security.pam.zfs.enable = true;
users.users = {
alice = {
isNormalUser = true;
password = userPassword;
};
bob = {
isNormalUser = true;
password = userPassword;
};
};
};
testScript = { nodes, ... }:
let
homes = nodes.machine.security.pam.zfs.homes;
pool = builtins.head (builtins.split "/" homes);
in
''
machine.wait_for_unit("multi-user.target")
machine.wait_until_succeeds("pgrep -f 'agetty.*tty1'")
with subtest("Create encrypted ZFS datasets"):
machine.succeed("truncate -s 64M /testpool.img")
machine.succeed("zpool create -O canmount=off '${pool}' /testpool.img")
machine.succeed("zfs create -o canmount=off -p '${homes}'")
machine.succeed("echo ${userPassword} | zfs create -o canmount=noauto -o encryption=on -o keyformat=passphrase '${homes}/alice'")
machine.succeed("zfs unload-key '${homes}/alice'")
machine.succeed("echo ${mismatchPass} | zfs create -o canmount=noauto -o encryption=on -o keyformat=passphrase '${homes}/bob'")
machine.succeed("zfs unload-key '${homes}/bob'")
with subtest("Switch to tty2"):
machine.fail("pgrep -f 'agetty.*tty2'")
machine.send_key("alt-f2")
machine.wait_until_succeeds("[ $(fgconsole) = 2 ]")
machine.wait_for_unit("getty@tty2.service")
machine.wait_until_succeeds("pgrep -f 'agetty.*tty2'")
with subtest("Log in as user with home locked by login password"):
machine.wait_until_tty_matches("2", "login: ")
machine.send_chars("alice\n")
machine.wait_until_tty_matches("2", "login: alice")
machine.wait_until_succeeds("pgrep login")
machine.wait_until_tty_matches("2", "Password: ")
machine.send_chars("${userPassword}\n")
machine.wait_until_succeeds("pgrep -u alice bash")
machine.succeed("mount | grep ${homes}/alice")
with subtest("Switch to tty3"):
machine.fail("pgrep -f 'agetty.*tty3'")
machine.send_key("alt-f3")
machine.wait_until_succeeds("[ $(fgconsole) = 3 ]")
machine.wait_for_unit("getty@tty3.service")
machine.wait_until_succeeds("pgrep -f 'agetty.*tty3'")
with subtest("Log in as user with home locked by password different from login"):
machine.wait_until_tty_matches("3", "login: ")
machine.send_chars("bob\n")
machine.wait_until_tty_matches("3", "login: bob")
machine.wait_until_succeeds("pgrep login")
machine.wait_until_tty_matches("3", "Password: ")
machine.send_chars("${userPassword}\n")
machine.wait_until_succeeds("pgrep -u bob bash")
machine.fail("mount | grep ${homes}/bob")
'';
}
)