6d80870832
In particular, using fetchGit means we don't need hackery to clean the source tree when building from an unclean tree.
109 lines
3.5 KiB
Nix
109 lines
3.5 KiB
Nix
# Verify that Linux builds cannot create setuid or setgid binaries.
|
|
|
|
{ nixpkgs, system, nix }:
|
|
|
|
with import (nixpkgs + "/nixos/lib/testing.nix") { inherit system; };
|
|
|
|
makeTest {
|
|
|
|
machine =
|
|
{ config, lib, pkgs, ... }:
|
|
{ virtualisation.writableStore = true;
|
|
nix.package = nix;
|
|
nix.binaryCaches = [ ];
|
|
nix.nixPath = [ "nixpkgs=${lib.cleanSource pkgs.path}" ];
|
|
virtualisation.pathsInNixDB = [ pkgs.stdenv pkgs.pkgsi686Linux.stdenv ];
|
|
};
|
|
|
|
testScript = { nodes }:
|
|
''
|
|
startAll;
|
|
|
|
# Copying to /tmp should succeed.
|
|
$machine->succeed('nix-build --no-sandbox -E \'(with import <nixpkgs> {}; runCommand "foo" {} "
|
|
mkdir -p $out
|
|
cp ${pkgs.coreutils}/bin/id /tmp/id
|
|
")\' ');
|
|
|
|
$machine->succeed('[[ $(stat -c %a /tmp/id) = 555 ]]');
|
|
|
|
$machine->succeed("rm /tmp/id");
|
|
|
|
# Creating a setuid binary should fail.
|
|
$machine->fail('nix-build --no-sandbox -E \'(with import <nixpkgs> {}; runCommand "foo" {} "
|
|
mkdir -p $out
|
|
cp ${pkgs.coreutils}/bin/id /tmp/id
|
|
chmod 4755 /tmp/id
|
|
")\' ');
|
|
|
|
$machine->succeed('[[ $(stat -c %a /tmp/id) = 555 ]]');
|
|
|
|
$machine->succeed("rm /tmp/id");
|
|
|
|
# Creating a setgid binary should fail.
|
|
$machine->fail('nix-build --no-sandbox -E \'(with import <nixpkgs> {}; runCommand "foo" {} "
|
|
mkdir -p $out
|
|
cp ${pkgs.coreutils}/bin/id /tmp/id
|
|
chmod 2755 /tmp/id
|
|
")\' ');
|
|
|
|
$machine->succeed('[[ $(stat -c %a /tmp/id) = 555 ]]');
|
|
|
|
$machine->succeed("rm /tmp/id");
|
|
|
|
# The checks should also work on 32-bit binaries.
|
|
$machine->fail('nix-build --no-sandbox -E \'(with import <nixpkgs> { system = "i686-linux"; }; runCommand "foo" {} "
|
|
mkdir -p $out
|
|
cp ${pkgs.coreutils}/bin/id /tmp/id
|
|
chmod 2755 /tmp/id
|
|
")\' ');
|
|
|
|
$machine->succeed('[[ $(stat -c %a /tmp/id) = 555 ]]');
|
|
|
|
$machine->succeed("rm /tmp/id");
|
|
|
|
# The tests above use fchmodat(). Test chmod() as well.
|
|
$machine->succeed('nix-build --no-sandbox -E \'(with import <nixpkgs> {}; runCommand "foo" { buildInputs = [ perl ]; } "
|
|
mkdir -p $out
|
|
cp ${pkgs.coreutils}/bin/id /tmp/id
|
|
perl -e \"chmod 0666, qw(/tmp/id) or die\"
|
|
")\' ');
|
|
|
|
$machine->succeed('[[ $(stat -c %a /tmp/id) = 666 ]]');
|
|
|
|
$machine->succeed("rm /tmp/id");
|
|
|
|
$machine->fail('nix-build --no-sandbox -E \'(with import <nixpkgs> {}; runCommand "foo" { buildInputs = [ perl ]; } "
|
|
mkdir -p $out
|
|
cp ${pkgs.coreutils}/bin/id /tmp/id
|
|
perl -e \"chmod 04755, qw(/tmp/id) or die\"
|
|
")\' ');
|
|
|
|
$machine->succeed('[[ $(stat -c %a /tmp/id) = 555 ]]');
|
|
|
|
$machine->succeed("rm /tmp/id");
|
|
|
|
# And test fchmod().
|
|
$machine->succeed('nix-build --no-sandbox -E \'(with import <nixpkgs> {}; runCommand "foo" { buildInputs = [ perl ]; } "
|
|
mkdir -p $out
|
|
cp ${pkgs.coreutils}/bin/id /tmp/id
|
|
perl -e \"my \\\$x; open \\\$x, qw(/tmp/id); chmod 01750, \\\$x or die\"
|
|
")\' ');
|
|
|
|
$machine->succeed('[[ $(stat -c %a /tmp/id) = 1750 ]]');
|
|
|
|
$machine->succeed("rm /tmp/id");
|
|
|
|
$machine->fail('nix-build --no-sandbox -E \'(with import <nixpkgs> {}; runCommand "foo" { buildInputs = [ perl ]; } "
|
|
mkdir -p $out
|
|
cp ${pkgs.coreutils}/bin/id /tmp/id
|
|
perl -e \"my \\\$x; open \\\$x, qw(/tmp/id); chmod 04777, \\\$x or die\"
|
|
")\' ');
|
|
|
|
$machine->succeed('[[ $(stat -c %a /tmp/id) = 555 ]]');
|
|
|
|
$machine->succeed("rm /tmp/id");
|
|
'';
|
|
|
|
}
|