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Previously, for processes launched by doas the unwrapped doas binary preceded the setuid-wrapped doas binary in PATH. This caused error `doas: not installed setuid` when running doas from processes launched by doas. doas seems to short-circuit the PATH lookup when called like `doas -u myuser doas -u myuser ...` so the error doesn't appear in this case.
91 lines
3.7 KiB
Nix
91 lines
3.7 KiB
Nix
# Some tests to ensure doas is working properly.
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import ./make-test-python.nix (
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{ lib, ... }: {
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name = "doas";
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meta = with lib.maintainers; {
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maintainers = [ cole-h ];
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};
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machine =
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{ ... }:
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{
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users.groups = { foobar = {}; barfoo = {}; baz = { gid = 1337; }; };
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users.users = {
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test0 = { isNormalUser = true; extraGroups = [ "wheel" ]; };
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test1 = { isNormalUser = true; };
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test2 = { isNormalUser = true; extraGroups = [ "foobar" ]; };
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test3 = { isNormalUser = true; extraGroups = [ "barfoo" ]; };
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test4 = { isNormalUser = true; extraGroups = [ "baz" ]; };
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test5 = { isNormalUser = true; };
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test6 = { isNormalUser = true; };
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test7 = { isNormalUser = true; };
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};
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security.doas = {
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enable = true;
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wheelNeedsPassword = false;
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extraRules = [
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{ users = [ "test1" ]; groups = [ "foobar" ]; }
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{ users = [ "test2" ]; noPass = true; setEnv = [ "CORRECT" "HORSE=BATTERY" ]; }
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{ groups = [ "barfoo" 1337 ]; noPass = true; }
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{ users = [ "test5" ]; noPass = true; keepEnv = true; runAs = "test1"; }
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{ users = [ "test6" ]; noPass = true; keepEnv = true; setEnv = [ "-STAPLE" ]; }
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{ users = [ "test7" ]; noPass = true; setEnv = [ "-SSH_AUTH_SOCK" ]; }
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];
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};
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};
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testScript = ''
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with subtest("users in wheel group should have passwordless doas"):
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machine.succeed('su - test0 -c "doas -u root true"')
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with subtest("test1 user should not be able to use doas without password"):
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machine.fail('su - test1 -c "doas -n -u root true"')
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with subtest("test2 user should be able to keep some env"):
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if "CORRECT=1" not in machine.succeed('su - test2 -c "CORRECT=1 doas env"'):
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raise Exception("failed to keep CORRECT")
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if "HORSE=BATTERY" not in machine.succeed('su - test2 -c "doas env"'):
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raise Exception("failed to setenv HORSE=BATTERY")
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with subtest("users in group 'barfoo' shouldn't require password"):
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machine.succeed("doas -u test3 doas -n -u root true")
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with subtest("users in group 'baz' (GID 1337) shouldn't require password"):
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machine.succeed("doas -u test4 doas -n -u root echo true")
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with subtest("test5 user should be able to run commands under test1"):
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machine.succeed("doas -u test5 doas -n -u test1 true")
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with subtest("test5 user should not be able to run commands under root"):
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machine.fail("doas -u test5 doas -n -u root true")
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with subtest("test6 user should be able to keepenv"):
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envs = ["BATTERY=HORSE", "CORRECT=false"]
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out = machine.succeed(
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'su - test6 -c "BATTERY=HORSE CORRECT=false STAPLE=Tr0ub4dor doas env"'
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)
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if not all(env in out for env in envs):
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raise Exception("failed to keep BATTERY or CORRECT")
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if "STAPLE=Tr0ub4dor" in out:
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raise Exception("failed to exclude STAPLE")
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with subtest("test7 should not have access to SSH_AUTH_SOCK"):
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if "SSH_AUTH_SOCK=HOLEY" in machine.succeed(
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'su - test7 -c "SSH_AUTH_SOCK=HOLEY doas env"'
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):
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raise Exception("failed to exclude SSH_AUTH_SOCK")
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# Test that the doas setuid wrapper precedes the unwrapped version in PATH after
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# calling doas.
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# The PATH set by doas is defined in
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# ../../pkgs/tools/security/doas/0001-add-NixOS-specific-dirs-to-safe-PATH.patch
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with subtest("recursive calls to doas from subprocesses should succeed"):
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machine.succeed('doas -u test0 sh -c "doas -u test0 true"')
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'';
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}
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)
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