stockholm/tv/3modules/umts.nix
2017-10-24 23:07:45 +02:00

100 lines
2.3 KiB
Nix

with import <stockholm/lib>;
{ config, lib, pkgs, ... }: let
cfg = config.tv.umts;
umts-dial = pkgs.writeDash "umts-dial" ''
set -euf
${pkgs.systemd}/bin/systemctl start umts
trap 'cleanup; trap - EXIT INT TERM' EXIT INT TERM
cleanup() {
${pkgs.systemd}/bin/systemctl stop umts
}
echo nameserver 8.8.8.8 >> /etc/resolv.conf
${pkgs.systemd}/bin/journalctl -xfu umts
'';
# https://github.com/NixOS/nixpkgs/issues/16113
wvdial = let
nixpkgs-1509 = import (pkgs.fetchFromGitHub {
owner = "NixOS"; repo = "nixpkgs-channels";
rev = "91371c2bb6e20fc0df7a812332d99c38b21a2bda";
sha256 = "1as1i0j9d2n3iap9b471y4x01561r2s3vmjc5281qinirlr4al73";
}) {};
in
nixpkgs-1509.wvdial;
in {
options.tv.umts = {
enable = mkEnableOption "tv.umts";
modem = mkOption {
type = types.str;
default = "/dev/ttyUSB0";
};
initstrings = mkOption {
type = types.str;
default = ''
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2
'';
};
username = mkOption {
type = types.str;
default = "default";
};
password = mkOption {
type = types.str;
default = "default";
};
pppDefaults = mkOption {
type = types.str;
default = ''
noipdefault
usepeerdns
defaultroute
persist
noauth
'';
};
};
config = lib.mkIf cfg.enable {
environment.etc = {
"ppp/peers/wvdial".text = cfg.pppDefaults;
"wvdial.conf".text = ''
[Dialer Defaults]
Modem = ${cfg.modem}
${cfg.initstrings}
Modem Type = Analog Modem
Baud = 460800
phone= *99#
Username = ${cfg.username}
Password = ${cfg.password}
Stupid Mode = 1
Idle Seconds = 0
PPPD Path = ${pkgs.ppp}/bin/pppd
'';
};
krebs.per-user.tv.packages = [
(pkgs.writeDashBin "umts" ''
exec sudo ${umts-dial}
'')
];
security.sudo.extraConfig = ''
tv ALL= (root) NOPASSWD: ${umts-dial}
'';
systemd.services.umts = {
description = "UMTS wvdial Service";
serviceConfig = {
Type = "simple";
Restart = "always";
RestartSec = "10s";
ExecStart = "${wvdial}/bin/wvdial -n";
};
};
};
}