dotfiles/system/modules/rndis.nix

53 lines
1.4 KiB
Nix

{ lib
, config
, ...
}:
let
cfg = config.phone;
in
{
options = {
phone.rndis.enable = lib.mkEnableOption "rndis";
};
config = lib.mkIf cfg.rndis.enable {
boot.initrd.kernelModules = [ "configfs" "libcomposite" ];
boot.initrd.availableKernelModules = [ "usb_f_rndis" "usb_f_ncm" ];
boot.specialFileSystems = {
"/sys/kernel/config" = {
device = "configfs";
fsType = "configfs";
options = [ "nosuid" "noexec" "nodev" ];
};
};
boot.initrd.preLVMCommands = ''
if ! mountpoint /sys/kernel/config; then
specialMount configfs /sys/kernel/config nosuid,noexec,nodev configfs
fi
mkdir -p /sys/kernel/config/usb_gadget/g1/strings/0x409
cd /sys/kernel/config/usb_gadget/g1
echo 0x18D1 > idVendor
echo 0xD001 > idProduct
echo nixos-device > strings/0x409/product
echo NixOS > strings/0x409/manufacturer
echo 0123456789 > strings/0x409/serialnumber
mkdir -p configs/c.1/strings/0x409
echo "USB network" > configs/c.1/strings/0x409/configuration
mkdir -p functions/ncm.usb0 || mkdir -p functions/rndis.usb0
ln -s functions/ncm.usb0 configs/c.1/ || ln -s functions/rndis.usb0 configs/c.1/
ls /sys/class/udc/ | head -n1 > UDC
cd /
ifconfig rndis0 172.16.42.1 || ifconfig usb0 172.16.42.1 || ifconfig eth0 172.16.42.1
'';
boot.initrd.network.enable = true;
boot.initrd.network.udhcpc.enable = false;
};
}