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nixpkgs/nixos/tests/grsecurity.nix
2017-02-09 16:23:04 +01:00

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Nix

# Basic test to make sure grsecurity works
import ./make-test.nix ({ pkgs, ...} : {
name = "grsecurity";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ copumpkin joachifm ];
};
machine = { config, pkgs, ... }:
{ security.grsecurity.enable = true;
boot.kernel.sysctl."kernel.grsecurity.audit_mount" = 0;
boot.kernel.sysctl."kernel.grsecurity.deter_bruteforce" = 0;
networking.useDHCP = false;
};
testScript = ''
subtest "grsec-lock", sub {
$machine->succeed("systemctl is-active grsec-lock");
$machine->succeed("grep -Fq 1 /proc/sys/kernel/grsecurity/grsec_lock");
$machine->fail("echo -n 0 >/proc/sys/kernel/grsecurity/grsec_lock");
};
subtest "paxtest", sub {
# TODO: running paxtest blackhat hangs the vm
my @pax_mustkill = (
"anonmap", "execbss", "execdata", "execheap", "execstack",
"mprotanon", "mprotbss", "mprotdata", "mprotheap", "mprotstack",
);
foreach my $name (@pax_mustkill) {
my $paxtest = "${pkgs.paxtest}/lib/paxtest/" . $name;
$machine->succeed($paxtest) =~ /Killed/ or die
}
};
# tcc -run executes run-time generated code and so allows us to test whether
# paxmark actually works (otherwise, the process should be terminated)
subtest "tcc", sub {
$machine->execute("echo -e '#include <stdio.h>\nint main(void) { puts(\"hello\"); return 0; }' >main.c");
$machine->succeed("${pkgs.tinycc}/bin/tcc -run main.c");
};
subtest "RBAC", sub {
$machine->succeed("[ -c /dev/grsec ]");
};
'';
})