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nixpkgs/nixos/tests/doas.nix

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# Some tests to ensure doas is working properly.
import ./make-test-python.nix (
{ lib, ... }: {
name = "doas";
meta = with lib.maintainers; {
maintainers = [ cole-h ];
};
machine =
{ ... }:
{
users.groups = { foobar = {}; barfoo = {}; baz = { gid = 1337; }; };
users.users = {
test0 = { isNormalUser = true; extraGroups = [ "wheel" ]; };
test1 = { isNormalUser = true; };
test2 = { isNormalUser = true; extraGroups = [ "foobar" ]; };
test3 = { isNormalUser = true; extraGroups = [ "barfoo" ]; };
test4 = { isNormalUser = true; extraGroups = [ "baz" ]; };
test5 = { isNormalUser = true; };
test6 = { isNormalUser = true; };
test7 = { isNormalUser = true; };
};
security.doas = {
enable = true;
wheelNeedsPassword = false;
extraRules = [
{ users = [ "test1" ]; groups = [ "foobar" ]; }
{ users = [ "test2" ]; noPass = true; setEnv = [ "CORRECT" "HORSE=BATTERY" ]; }
{ groups = [ "barfoo" 1337 ]; noPass = true; }
{ users = [ "test5" ]; noPass = true; keepEnv = true; runAs = "test1"; }
{ users = [ "test6" ]; noPass = true; keepEnv = true; setEnv = [ "-STAPLE" ]; }
{ users = [ "test7" ]; noPass = true; setEnv = [ "-SSH_AUTH_SOCK" ]; }
];
};
};
testScript = ''
with subtest("users in wheel group should have passwordless doas"):
machine.succeed('su - test0 -c "doas -u root true"')
with subtest("test1 user should not be able to use doas without password"):
machine.fail('su - test1 -c "doas -n -u root true"')
with subtest("test2 user should be able to keep some env"):
if "CORRECT=1" not in machine.succeed('su - test2 -c "CORRECT=1 doas env"'):
raise Exception("failed to keep CORRECT")
if "HORSE=BATTERY" not in machine.succeed('su - test2 -c "doas env"'):
raise Exception("failed to setenv HORSE=BATTERY")
with subtest("users in group 'barfoo' shouldn't require password"):
machine.succeed("doas -u test3 doas -n -u root true")
with subtest("users in group 'baz' (GID 1337) shouldn't require password"):
machine.succeed("doas -u test4 doas -n -u root echo true")
with subtest("test5 user should be able to run commands under test1"):
machine.succeed("doas -u test5 doas -n -u test1 true")
with subtest("test5 user should not be able to run commands under root"):
machine.fail("doas -u test5 doas -n -u root true")
with subtest("test6 user should be able to keepenv"):
envs = ["BATTERY=HORSE", "CORRECT=false"]
out = machine.succeed(
'su - test6 -c "BATTERY=HORSE CORRECT=false STAPLE=Tr0ub4dor doas env"'
)
if not all(env in out for env in envs):
raise Exception("failed to keep BATTERY or CORRECT")
if "STAPLE=Tr0ub4dor" in out:
raise Exception("failed to exclude STAPLE")
with subtest("test7 should not have access to SSH_AUTH_SOCK"):
if "SSH_AUTH_SOCK=HOLEY" in machine.succeed(
'su - test7 -c "SSH_AUTH_SOCK=HOLEY doas env"'
):
raise Exception("failed to exclude SSH_AUTH_SOCK")
'';
}
)