mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-21 21:21:06 +00:00
527 lines
15 KiB
Nix
527 lines
15 KiB
Nix
{ system ? builtins.currentSystem,
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config ? {},
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pkgs ? import ../.. { inherit system config; },
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debug ? false,
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enableUnfree ? false,
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# Nested KVM virtualization (https://www.linux-kvm.org/page/Nested_Guests)
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# requires a modprobe flag on the build machine: (kvm-amd for AMD CPUs)
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# boot.extraModprobeConfig = "options kvm-intel nested=Y";
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# Without this VirtualBox will use SW virtualization and will only be able
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# to run 32-bit guests.
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useKvmNestedVirt ? false,
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# Whether to run 64-bit guests instead of 32-bit. Requires nested KVM.
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use64bitGuest ? false
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}:
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assert use64bitGuest -> useKvmNestedVirt;
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with import ../lib/testing.nix { inherit system pkgs; };
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with pkgs.lib;
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let
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testVMConfig = vmName: attrs: { config, pkgs, lib, ... }: let
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guestAdditions = pkgs.linuxPackages.virtualboxGuestAdditions;
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miniInit = ''
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#!${pkgs.runtimeShell} -xe
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export PATH="${lib.makeBinPath [ pkgs.coreutils pkgs.utillinux ]}"
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mkdir -p /run/dbus
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cat > /etc/passwd <<EOF
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root:x:0:0::/root:/bin/false
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messagebus:x:1:1::/run/dbus:/bin/false
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EOF
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cat > /etc/group <<EOF
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root:x:0:
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messagebus:x:1:
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EOF
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"${pkgs.dbus.daemon}/bin/dbus-daemon" --fork \
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--config-file="${pkgs.dbus.daemon}/share/dbus-1/system.conf"
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${guestAdditions}/bin/VBoxService
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${(attrs.vmScript or (const "")) pkgs}
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i=0
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while [ ! -e /mnt-root/shutdown ]; do
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sleep 10
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i=$(($i + 10))
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[ $i -le 120 ] || fail
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done
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rm -f /mnt-root/boot-done /mnt-root/shutdown
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'';
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in {
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boot.kernelParams = [
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"console=tty0" "console=ttyS0" "ignore_loglevel"
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"boot.trace" "panic=1" "boot.panic_on_fail"
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"init=${pkgs.writeScript "mini-init.sh" miniInit}"
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];
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fileSystems."/" = {
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device = "vboxshare";
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fsType = "vboxsf";
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};
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virtualisation.virtualbox.guest.enable = true;
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boot.initrd.kernelModules = [
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"af_packet" "vboxsf"
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"virtio" "virtio_pci" "virtio_ring" "virtio_net" "vboxguest"
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];
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boot.initrd.extraUtilsCommands = ''
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copy_bin_and_libs "${guestAdditions}/bin/mount.vboxsf"
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copy_bin_and_libs "${pkgs.utillinux}/bin/unshare"
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${(attrs.extraUtilsCommands or (const "")) pkgs}
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'';
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boot.initrd.postMountCommands = ''
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touch /mnt-root/boot-done
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hostname "${vmName}"
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mkdir -p /nix/store
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unshare -m ${escapeShellArg pkgs.runtimeShell} -c '
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mount -t vboxsf nixstore /nix/store
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exec "$stage2Init"
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'
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poweroff -f
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'';
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system.requiredKernelConfig = with config.lib.kernelConfig; [
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(isYes "SERIAL_8250_CONSOLE")
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(isYes "SERIAL_8250")
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];
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};
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mkLog = logfile: tag: let
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rotated = map (i: "${logfile}.${toString i}") (range 1 9);
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all = concatMapStringsSep " " (f: "\"${f}\"") ([logfile] ++ rotated);
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logcmd = "tail -F ${all} 2> /dev/null | logger -t \"${tag}\"";
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in optionalString debug "$machine->execute(ru '${logcmd} & disown');";
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testVM = vmName: vmScript: let
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cfg = (import ../lib/eval-config.nix {
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system = if use64bitGuest then "x86_64-linux" else "i686-linux";
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modules = [
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../modules/profiles/minimal.nix
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(testVMConfig vmName vmScript)
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];
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}).config;
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in pkgs.vmTools.runInLinuxVM (pkgs.runCommand "virtualbox-image" {
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preVM = ''
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mkdir -p "$out"
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diskImage="$(pwd)/qimage"
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${pkgs.vmTools.qemu}/bin/qemu-img create -f raw "$diskImage" 100M
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'';
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postVM = ''
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echo "creating VirtualBox disk image..."
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${pkgs.vmTools.qemu}/bin/qemu-img convert -f raw -O vdi \
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"$diskImage" "$out/disk.vdi"
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'';
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buildInputs = [ pkgs.utillinux pkgs.perl ];
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} ''
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${pkgs.parted}/sbin/parted --script /dev/vda mklabel msdos
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${pkgs.parted}/sbin/parted --script /dev/vda -- mkpart primary ext2 1M -1s
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${pkgs.e2fsprogs}/sbin/mkfs.ext4 /dev/vda1
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${pkgs.e2fsprogs}/sbin/tune2fs -c 0 -i 0 /dev/vda1
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mkdir /mnt
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mount /dev/vda1 /mnt
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cp "${cfg.system.build.kernel}/bzImage" /mnt/linux
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cp "${cfg.system.build.initialRamdisk}/initrd" /mnt/initrd
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${pkgs.grub2}/bin/grub-install --boot-directory=/mnt /dev/vda
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cat > /mnt/grub/grub.cfg <<GRUB
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set root=hd0,1
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linux /linux ${concatStringsSep " " cfg.boot.kernelParams}
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initrd /initrd
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boot
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GRUB
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umount /mnt
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'');
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createVM = name: attrs: let
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mkFlags = concatStringsSep " ";
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sharePath = "/home/alice/vboxshare-${name}";
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createFlags = mkFlags [
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"--ostype ${if use64bitGuest then "Linux26_64" else "Linux26"}"
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"--register"
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];
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vmFlags = mkFlags ([
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"--uart1 0x3F8 4"
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"--uartmode1 client /run/virtualbox-log-${name}.sock"
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"--memory 768"
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"--audio none"
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] ++ (attrs.vmFlags or []));
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controllerFlags = mkFlags [
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"--name SATA"
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"--add sata"
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"--bootable on"
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"--hostiocache on"
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];
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diskFlags = mkFlags [
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"--storagectl SATA"
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"--port 0"
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"--device 0"
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"--type hdd"
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"--mtype immutable"
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"--medium ${testVM name attrs}/disk.vdi"
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];
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sharedFlags = mkFlags [
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"--name vboxshare"
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"--hostpath ${sharePath}"
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];
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nixstoreFlags = mkFlags [
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"--name nixstore"
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"--hostpath /nix/store"
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"--readonly"
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];
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in {
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machine = {
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systemd.sockets."vboxtestlog-${name}" = {
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description = "VirtualBox Test Machine Log Socket For ${name}";
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wantedBy = [ "sockets.target" ];
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before = [ "multi-user.target" ];
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socketConfig.ListenStream = "/run/virtualbox-log-${name}.sock";
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socketConfig.Accept = true;
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};
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systemd.services."vboxtestlog-${name}@" = {
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description = "VirtualBox Test Machine Log For ${name}";
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serviceConfig.StandardInput = "socket";
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serviceConfig.StandardOutput = "syslog";
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serviceConfig.SyslogIdentifier = "GUEST-${name}";
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serviceConfig.ExecStart = "${pkgs.coreutils}/bin/cat";
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};
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};
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testSubs = ''
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my ${"$" + name}_sharepath = '${sharePath}';
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sub checkRunning_${name} {
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my $cmd = 'VBoxManage list runningvms | grep -q "^\"${name}\""';
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my ($status, $out) = $machine->execute(ru $cmd);
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return $status == 0;
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}
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sub cleanup_${name} {
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$machine->execute(ru "VBoxManage controlvm ${name} poweroff")
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if checkRunning_${name};
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$machine->succeed("rm -rf ${sharePath}");
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$machine->succeed("mkdir -p ${sharePath}");
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$machine->succeed("chown alice.users ${sharePath}");
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}
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sub createVM_${name} {
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vbm("createvm --name ${name} ${createFlags}");
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vbm("modifyvm ${name} ${vmFlags}");
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vbm("setextradata ${name} VBoxInternal/PDM/HaltOnReset 1");
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vbm("storagectl ${name} ${controllerFlags}");
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vbm("storageattach ${name} ${diskFlags}");
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vbm("sharedfolder add ${name} ${sharedFlags}");
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vbm("sharedfolder add ${name} ${nixstoreFlags}");
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cleanup_${name};
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${mkLog "$HOME/VirtualBox VMs/${name}/Logs/VBox.log" "HOST-${name}"}
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}
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sub destroyVM_${name} {
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cleanup_${name};
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vbm("unregistervm ${name} --delete");
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}
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sub waitForVMBoot_${name} {
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$machine->execute(ru(
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'set -e; i=0; '.
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'while ! test -e ${sharePath}/boot-done; do '.
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'sleep 10; i=$(($i + 10)); [ $i -le 3600 ]; '.
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'VBoxManage list runningvms | grep -q "^\"${name}\""; '.
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'done'
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));
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}
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sub waitForIP_${name} ($) {
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my $property = "/VirtualBox/GuestInfo/Net/$_[0]/V4/IP";
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my $getip = "VBoxManage guestproperty get ${name} $property | ".
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"sed -n -e 's/^Value: //p'";
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my $ip = $machine->succeed(ru(
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'for i in $(seq 1000); do '.
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'if ipaddr="$('.$getip.')" && [ -n "$ipaddr" ]; then '.
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'echo "$ipaddr"; exit 0; '.
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'fi; '.
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'sleep 1; '.
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'done; '.
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'echo "Could not get IPv4 address for ${name}!" >&2; '.
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'exit 1'
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));
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chomp $ip;
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return $ip;
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}
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sub waitForStartup_${name} {
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for (my $i = 0; $i <= 120; $i += 10) {
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$machine->sleep(10);
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return if checkRunning_${name};
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eval { $_[0]->() } if defined $_[0];
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}
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die "VirtualBox VM didn't start up within 2 minutes";
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}
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sub waitForShutdown_${name} {
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for (my $i = 0; $i <= 120; $i += 10) {
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$machine->sleep(10);
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return unless checkRunning_${name};
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}
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die "VirtualBox VM didn't shut down within 2 minutes";
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}
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sub shutdownVM_${name} {
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$machine->succeed(ru "touch ${sharePath}/shutdown");
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$machine->execute(
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'set -e; i=0; '.
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'while test -e ${sharePath}/shutdown '.
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' -o -e ${sharePath}/boot-done; do '.
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'sleep 1; i=$(($i + 1)); [ $i -le 3600 ]; '.
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'done'
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);
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waitForShutdown_${name};
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}
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'';
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};
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hostonlyVMFlags = [
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"--nictype1 virtio"
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"--nictype2 virtio"
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"--nic2 hostonly"
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"--hostonlyadapter2 vboxnet0"
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];
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# The VirtualBox Oracle Extension Pack lets you use USB 3.0 (xHCI).
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enableExtensionPackVMFlags = [
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"--usbxhci on"
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];
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dhcpScript = pkgs: ''
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${pkgs.dhcp}/bin/dhclient \
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-lf /run/dhcp.leases \
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-pf /run/dhclient.pid \
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-v eth0 eth1
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otherIP="$(${pkgs.netcat}/bin/nc -l 1234 || :)"
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${pkgs.iputils}/bin/ping -I eth1 -c1 "$otherIP"
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echo "$otherIP reachable" | ${pkgs.netcat}/bin/nc -l 5678 || :
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'';
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sysdDetectVirt = pkgs: ''
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${pkgs.systemd}/bin/systemd-detect-virt > /mnt-root/result
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'';
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vboxVMs = mapAttrs createVM {
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simple = {};
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detectvirt.vmScript = sysdDetectVirt;
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test1.vmFlags = hostonlyVMFlags;
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test1.vmScript = dhcpScript;
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test2.vmFlags = hostonlyVMFlags;
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test2.vmScript = dhcpScript;
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headless.virtualisation.virtualbox.headless = true;
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headless.services.xserver.enable = false;
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};
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vboxVMsWithExtpack = mapAttrs createVM {
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testExtensionPack.vmFlags = enableExtensionPackVMFlags;
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};
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mkVBoxTest = useExtensionPack: vms: name: testScript: makeTest {
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name = "virtualbox-${name}";
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machine = { lib, config, ... }: {
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imports = let
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mkVMConf = name: val: val.machine // { key = "${name}-config"; };
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vmConfigs = mapAttrsToList mkVMConf vms;
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in [ ./common/user-account.nix ./common/x11.nix ] ++ vmConfigs;
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virtualisation.memorySize = 2048;
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virtualisation.qemu.options =
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if useKvmNestedVirt then ["-cpu" "kvm64,vmx=on"] else [];
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virtualisation.virtualbox.host.enable = true;
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test-support.displayManager.auto.user = "alice";
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users.users.alice.extraGroups = let
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inherit (config.virtualisation.virtualbox.host) enableHardening;
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in lib.mkIf enableHardening (lib.singleton "vboxusers");
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virtualisation.virtualbox.host.enableExtensionPack = useExtensionPack;
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nixpkgs.config.allowUnfree = useExtensionPack;
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};
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testScript = ''
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sub ru ($) {
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my $esc = $_[0] =~ s/'/'\\${"'"}'/gr;
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return "su - alice -c '$esc'";
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}
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sub vbm {
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$machine->succeed(ru("VBoxManage ".$_[0]));
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};
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sub removeUUIDs {
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return join("\n", grep { $_ !~ /^UUID:/ } split(/\n/, $_[0]))."\n";
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}
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${concatStrings (mapAttrsToList (_: getAttr "testSubs") vms)}
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$machine->waitForX;
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${mkLog "$HOME/.config/VirtualBox/VBoxSVC.log" "HOST-SVC"}
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${testScript}
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'';
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meta = with pkgs.stdenv.lib.maintainers; {
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maintainers = [ aszlig cdepillabout ];
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};
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};
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unfreeTests = mapAttrs (mkVBoxTest true vboxVMsWithExtpack) {
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enable-extension-pack = ''
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createVM_testExtensionPack;
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vbm("startvm testExtensionPack");
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waitForStartup_testExtensionPack;
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$machine->screenshot("cli_started");
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waitForVMBoot_testExtensionPack;
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$machine->screenshot("cli_booted");
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$machine->nest("Checking for privilege escalation", sub {
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$machine->fail("test -e '/root/VirtualBox VMs'");
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$machine->fail("test -e '/root/.config/VirtualBox'");
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$machine->succeed("test -e '/home/alice/VirtualBox VMs'");
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});
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shutdownVM_testExtensionPack;
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destroyVM_testExtensionPack;
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'';
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};
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in mapAttrs (mkVBoxTest false vboxVMs) {
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simple-gui = ''
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createVM_simple;
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$machine->succeed(ru "VirtualBox &");
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$machine->waitUntilSucceeds(
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ru "xprop -name 'Oracle VM VirtualBox Manager'"
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);
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$machine->sleep(5);
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$machine->screenshot("gui_manager_started");
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# Home to select Tools, down to move to the VM, enter to start it.
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$machine->sendKeys("home");
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$machine->sendKeys("down");
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$machine->sendKeys("ret");
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$machine->screenshot("gui_manager_sent_startup");
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waitForStartup_simple (sub {
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$machine->sendKeys("home");
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$machine->sendKeys("down");
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$machine->sendKeys("ret");
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});
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$machine->screenshot("gui_started");
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waitForVMBoot_simple;
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$machine->screenshot("gui_booted");
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shutdownVM_simple;
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$machine->sleep(5);
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$machine->screenshot("gui_stopped");
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$machine->sendKeys("ctrl-q");
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$machine->sleep(5);
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$machine->screenshot("gui_manager_stopped");
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destroyVM_simple;
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'';
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simple-cli = ''
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createVM_simple;
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vbm("startvm simple");
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waitForStartup_simple;
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$machine->screenshot("cli_started");
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waitForVMBoot_simple;
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$machine->screenshot("cli_booted");
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$machine->nest("Checking for privilege escalation", sub {
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$machine->fail("test -e '/root/VirtualBox VMs'");
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$machine->fail("test -e '/root/.config/VirtualBox'");
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$machine->succeed("test -e '/home/alice/VirtualBox VMs'");
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});
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shutdownVM_simple;
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destroyVM_simple;
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'';
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headless = ''
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createVM_headless;
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$machine->succeed(ru("VBoxHeadless --startvm headless & disown %1"));
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waitForStartup_headless;
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waitForVMBoot_headless;
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shutdownVM_headless;
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destroyVM_headless;
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'';
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host-usb-permissions = ''
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my $userUSB = removeUUIDs vbm("list usbhost");
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print STDERR $userUSB;
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my $rootUSB = removeUUIDs $machine->succeed("VBoxManage list usbhost");
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print STDERR $rootUSB;
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die "USB host devices differ for root and normal user"
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if $userUSB ne $rootUSB;
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die "No USB host devices found" if $userUSB =~ /<none>/;
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'';
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systemd-detect-virt = ''
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createVM_detectvirt;
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vbm("startvm detectvirt");
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waitForStartup_detectvirt;
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waitForVMBoot_detectvirt;
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shutdownVM_detectvirt;
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my $result = $machine->succeed("cat '$detectvirt_sharepath/result'");
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chomp $result;
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destroyVM_detectvirt;
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die "systemd-detect-virt returned \"$result\" instead of \"oracle\""
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if $result ne "oracle";
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'';
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net-hostonlyif = ''
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createVM_test1;
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createVM_test2;
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vbm("startvm test1");
|
|
waitForStartup_test1;
|
|
waitForVMBoot_test1;
|
|
|
|
vbm("startvm test2");
|
|
waitForStartup_test2;
|
|
waitForVMBoot_test2;
|
|
|
|
$machine->screenshot("net_booted");
|
|
|
|
my $test1IP = waitForIP_test1 1;
|
|
my $test2IP = waitForIP_test2 1;
|
|
|
|
$machine->succeed("echo '$test2IP' | nc -N '$test1IP' 1234");
|
|
$machine->succeed("echo '$test1IP' | nc -N '$test2IP' 1234");
|
|
|
|
$machine->waitUntilSucceeds("nc -N '$test1IP' 5678 < /dev/null >&2");
|
|
$machine->waitUntilSucceeds("nc -N '$test2IP' 5678 < /dev/null >&2");
|
|
|
|
shutdownVM_test1;
|
|
shutdownVM_test2;
|
|
|
|
destroyVM_test1;
|
|
destroyVM_test2;
|
|
'';
|
|
} // (if enableUnfree then unfreeTests else {})
|