e15815e885
This modifies the `router` to not give out a range of IP addresses but only give out a fixed address based on the MAC address using the `services.dhcpd4.machines` option. To get access to the MAC address the `qemuNicMac` function is defined and exported from `qemu-flags.nix`.
30 lines
1.2 KiB
Nix
30 lines
1.2 KiB
Nix
# QEMU flags shared between various Nix expressions.
|
|
{ pkgs }:
|
|
|
|
let
|
|
zeroPad = n:
|
|
pkgs.lib.optionalString (n < 16) "0" +
|
|
(if n > 255
|
|
then throw "Can't have more than 255 nets or nodes!"
|
|
else pkgs.lib.toHex n);
|
|
in
|
|
|
|
rec {
|
|
qemuNicMac = net: machine: "52:54:00:12:${zeroPad net}:${zeroPad machine}";
|
|
|
|
qemuNICFlags = nic: net: machine:
|
|
[ "-device virtio-net-pci,netdev=vlan${toString nic},mac=${qemuNicMac net machine}"
|
|
"-netdev vde,id=vlan${toString nic},sock=$QEMU_VDE_SOCKET_${toString net}"
|
|
];
|
|
|
|
qemuSerialDevice = if pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64 then "ttyS0"
|
|
else if pkgs.stdenv.isAarch32 || pkgs.stdenv.isAarch64 then "ttyAMA0"
|
|
else throw "Unknown QEMU serial device for system '${pkgs.stdenv.hostPlatform.system}'";
|
|
|
|
qemuBinary = qemuPkg: {
|
|
x86_64-linux = "${qemuPkg}/bin/qemu-kvm -cpu host";
|
|
armv7l-linux = "${qemuPkg}/bin/qemu-system-arm -enable-kvm -machine virt -cpu host";
|
|
aarch64-linux = "${qemuPkg}/bin/qemu-system-aarch64 -enable-kvm -machine virt,gic-version=host -cpu host";
|
|
x86_64-darwin = "${qemuPkg}/bin/qemu-kvm -cpu host";
|
|
}.${pkgs.stdenv.hostPlatform.system} or "${qemuPkg}/bin/qemu-kvm";
|
|
}
|