5cfdf16dd6
Perl-based tests are deprecated since NixOS 20.03 and subsequently got removed in NixOS 20.09, which effectively means that tests are going to fail as soon as we build it with NixOS 20.09 or anything newer. I've put "# fmt: off" at the start of every testScript, because formatting with Black really messes up indentation and I don't think it really adds anything in value or readability for inlined Python scripts. Signed-off-by: aszlig <aszlig@nix.build>
126 lines
3.5 KiB
Nix
126 lines
3.5 KiB
Nix
# Verify that Linux builds cannot create setuid or setgid binaries.
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{ nixpkgs, system, overlay }:
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with import (nixpkgs + "/nixos/lib/testing-python.nix") {
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inherit system;
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extraConfigurations = [ { nixpkgs.overlays = [ overlay ]; } ];
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};
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makeTest {
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machine =
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{ config, lib, pkgs, ... }:
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{ virtualisation.writableStore = true;
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nix.binaryCaches = lib.mkForce [ ];
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nix.nixPath = [ "nixpkgs=${lib.cleanSource pkgs.path}" ];
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virtualisation.pathsInNixDB = [ pkgs.stdenv pkgs.pkgsi686Linux.stdenv ];
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};
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testScript = { nodes }: ''
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# fmt: off
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start_all()
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# Copying to /tmp should succeed.
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machine.succeed(r"""
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nix-build --no-sandbox -E '(with import <nixpkgs> {}; runCommand "foo" {} "
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mkdir -p $out
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cp ${pkgs.coreutils}/bin/id /tmp/id
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")'
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""".strip())
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machine.succeed('[[ $(stat -c %a /tmp/id) = 555 ]]')
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machine.succeed("rm /tmp/id")
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# Creating a setuid binary should fail.
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machine.fail(r"""
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nix-build --no-sandbox -E '(with import <nixpkgs> {}; runCommand "foo" {} "
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mkdir -p $out
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cp ${pkgs.coreutils}/bin/id /tmp/id
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chmod 4755 /tmp/id
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")'
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""".strip())
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machine.succeed('[[ $(stat -c %a /tmp/id) = 555 ]]')
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machine.succeed("rm /tmp/id")
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# Creating a setgid binary should fail.
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machine.fail(r"""
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nix-build --no-sandbox -E '(with import <nixpkgs> {}; runCommand "foo" {} "
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mkdir -p $out
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cp ${pkgs.coreutils}/bin/id /tmp/id
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chmod 2755 /tmp/id
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")'
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""".strip())
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machine.succeed('[[ $(stat -c %a /tmp/id) = 555 ]]')
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machine.succeed("rm /tmp/id")
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# The checks should also work on 32-bit binaries.
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machine.fail(r"""
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nix-build --no-sandbox -E '(with import <nixpkgs> { system = "i686-linux"; }; runCommand "foo" {} "
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mkdir -p $out
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cp ${pkgs.coreutils}/bin/id /tmp/id
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chmod 2755 /tmp/id
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")'
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""".strip())
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machine.succeed('[[ $(stat -c %a /tmp/id) = 555 ]]')
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machine.succeed("rm /tmp/id")
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# The tests above use fchmodat(). Test chmod() as well.
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machine.succeed(r"""
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nix-build --no-sandbox -E '(with import <nixpkgs> {}; runCommand "foo" { buildInputs = [ perl ]; } "
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mkdir -p $out
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cp ${pkgs.coreutils}/bin/id /tmp/id
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perl -e \"chmod 0666, qw(/tmp/id) or die\"
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")'
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""".strip())
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machine.succeed('[[ $(stat -c %a /tmp/id) = 666 ]]')
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machine.succeed("rm /tmp/id")
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machine.fail(r"""
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nix-build --no-sandbox -E '(with import <nixpkgs> {}; runCommand "foo" { buildInputs = [ perl ]; } "
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mkdir -p $out
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cp ${pkgs.coreutils}/bin/id /tmp/id
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perl -e \"chmod 04755, qw(/tmp/id) or die\"
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")'
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""".strip())
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machine.succeed('[[ $(stat -c %a /tmp/id) = 555 ]]')
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machine.succeed("rm /tmp/id")
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# And test fchmod().
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machine.succeed(r"""
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nix-build --no-sandbox -E '(with import <nixpkgs> {}; runCommand "foo" { buildInputs = [ perl ]; } "
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mkdir -p $out
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cp ${pkgs.coreutils}/bin/id /tmp/id
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perl -e \"my \\\$x; open \\\$x, qw(/tmp/id); chmod 01750, \\\$x or die\"
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")'
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""".strip())
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machine.succeed('[[ $(stat -c %a /tmp/id) = 1750 ]]')
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machine.succeed("rm /tmp/id")
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machine.fail(r"""
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nix-build --no-sandbox -E '(with import <nixpkgs> {}; runCommand "foo" { buildInputs = [ perl ]; } "
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mkdir -p $out
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cp ${pkgs.coreutils}/bin/id /tmp/id
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perl -e \"my \\\$x; open \\\$x, qw(/tmp/id); chmod 04777, \\\$x or die\"
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")'
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""".strip())
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machine.succeed('[[ $(stat -c %a /tmp/id) = 555 ]]')
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machine.succeed("rm /tmp/id")
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'';
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}
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