diff options
Diffstat (limited to 'nixpkgs/nixos/lib/qemu-flags.nix')
| -rw-r--r-- | nixpkgs/nixos/lib/qemu-flags.nix | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/nixpkgs/nixos/lib/qemu-flags.nix b/nixpkgs/nixos/lib/qemu-flags.nix index 859d9e975fe..0cf6977af4b 100644 --- a/nixpkgs/nixos/lib/qemu-flags.nix +++ b/nixpkgs/nixos/lib/qemu-flags.nix @@ -2,13 +2,18 @@ { pkgs }: let - zeroPad = n: if n < 10 then "0${toString n}" else toString n; + zeroPad = n: + pkgs.lib.optionalString (n < 16) "0" + + (if n > 255 + then throw "Can't have more than 255 nets or nodes!" + else pkgs.lib.toHexString n); in -{ +rec { + qemuNicMac = net: machine: "52:54:00:12:${zeroPad net}:${zeroPad machine}"; qemuNICFlags = nic: net: machine: - [ "-device virtio-net-pci,netdev=vlan${toString nic},mac=52:54:00:12:${zeroPad net}:${zeroPad 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}" ]; |