{ pkgs , qemuMem , sshUser ? "user" , sshPassword ? "user" , }: with pkgs; let qemu-img = "${qemu_kvm}/bin/qemu-img"; runQemu = isolateNetwork: forwardedPorts: extraArgs: let restrict = if isolateNetwork then "on" else "off"; # use socat instead of `tcp:…` to allow multiple connections guestfwds = builtins.concatStringsSep "" ( map ( { listenAddr, targetAddr, port }: ",guestfwd=tcp:${listenAddr}:${toString port}-cmd:${socat}/bin/socat\\ -\\ tcp:${targetAddr}:${toString port}" ) forwardedPorts ); args = [ #"-enable-kvm" "-m" qemuMem "-bios" "${OVMF.fd}/FV/OVMF.fd" "-netdev" "user,id=n1,net=192.168.1.0/24,restrict=${restrict},hostfwd=tcp::2022-:22${guestfwds}" "-device" "e1000,netdev=n1" ]; argStr = builtins.concatStringsSep " " (args ++ extraArgs); in "${qemu_kvm}/bin/qemu-system-x86_64 ${argStr}"; # Pass empty config file to prevent ssh from failing to create ~/.ssh sshOpts = "-F /dev/null -o StrictHostKeyChecking=accept-new -o UserKnownHostsFile=\$TMP/known_hosts"; sshWithQuotes = quotes: cmd: '' echo ssh windows ${quotes}${cmd}${quotes} ${sshpass}/bin/sshpass -p${sshPassword} -- \ ${openssh}/bin/ssh -np 2022 ${sshOpts} \ ${sshUser}@localhost \ ${quotes}${cmd}${quotes} ''; ssh = sshWithQuotes "'"; scp = src: target: '' echo "Copy ${src} to ${target}" ${sshpass}/bin/sshpass -p${sshPassword} -- \ ${openssh}/bin/scp -P 2022 ${sshOpts} \ "${src}" "${sshUser}@localhost:${target}" ''; in { inherit qemu-img runQemu ssh sshWithQuotes scp; inputs = [ qemu_kvm openssh sshpass ]; }