hosts/aubergine/networking/lte.nix

   1 { pkgs, lib, config, ... }:
   2 with (import ./names-and-numbers.nix);
   3 let
   4   inherit (config.users) users;
   5   modemmanager = pkgs.modemmanager-1-18;
   6   #modemmanager = pkgs.modemmanager-1-20-4;
   7 in
   8 {
   9   networking.nftables.ruleset = ''
  10     table inet filter {
  11       chain input {
  12         iifname ${lteIface} jump input-net
  13         iifname ${lteIface} log level warn prefix "input-net: " counter drop
  14       }
  15       chain output-net {
  16         ip daddr 10.151.0.1 tcp dport 8080 counter accept \
  17           comment "mmsd: Prixtel/SFR"
  18       }
  19       chain output {
  20         oifname ${lteIface} jump output-net
  21         oifname ${lteIface} log level warn prefix "output-net: " counter drop
  22       }
  23       chain forward-to-net {
  24       }
  25       chain forward-from-net {
  26       }
  27       chain forward-to-net { }
  28       chain forward-from-net { }
  29       chain forward {
  30         iifname { ${wifiIface}, ${eth1Iface}, ${eth2Iface}, ${eth3Iface} } oifname ${lteIface} goto forward-to-net
  31         iifname ${lteIface} oifname { ${wifiIface}, ${eth1Iface}, ${eth2Iface}, ${eth3Iface} } goto forward-from-net
  32       }
  33     }
  34     table inet nat {
  35       chain postrouting {
  36         iifname { ${wifiIface}, ${eth1Iface}, ${eth2Iface}, ${eth3Iface} } oifname ${lteIface} masquerade
  37       }
  38     }
  39   '';
  40   services.mmsd.enable = true;
  41   services.mmsd.extraArgs = [ "--debug" ];
  42   systemd.services.ModemManager.serviceConfig.ExecStart =
  43     lib.mkForce [
  44       ""
  45       # See https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/780
  46       "${modemmanager}/bin/ModemManager --debug"
  47     ];
  48   systemd.services.NetworkManager.wants = [ "ModemManager.service" ];
  49   services.dbus.packages = [ pkgs.dconf ];
  50   programs.dconf.enable = true;
  51   environment.etc."NetworkManager/system-connections/Prixtel.nmconnection" = {
  52     mode = "600";
  53     text = ''
  54       [connection]
  55       id=Prixtel
  56       uuid=b223f550-dff1-4ba3-9755-cd4557faaa5a
  57       type=gsm
  58       autoconnect=true
  59       autoconnect-priority=999
  60       autoconnect-retries=0
  61
  62       [gsm]
  63       apn=sl2sfr
  64       number=*99#
  65       #home-only=true
  66
  67       [ppp]
  68
  69       [ipv4]
  70       method=auto
  71       dhcp-send-hostname=false
  72
  73       [ipv6]
  74       method=auto
  75       addr-gen-mode=stable-privacy
  76       ip6-privacy=2
  77       dhcp-send-hostname=false
  78
  79       [proxy]
  80     '';
  81   };
  82   systemd.services.watch-lte = {
  83     after = [ "ModemManager.service" "NetworkManager.service" "NetworkManager-wait-online.service" ];
  84     requires = [ "ModemManager.service" "NetworkManager.service" "NetworkManager-wait-online.service" ];
  85     wantedBy = [ "network-online.target" ];
  86     #startAt = "*:0/5"; # every 5 min
  87     path = with pkgs; [ inetutils modemmanager networkmanager jq ];
  88     unitConfig = { StartLimitIntervalSec = 0; };
  89     serviceConfig = {
  90       Type = "simple";
  91       IPAddressAllow = [ "9.9.9.9" ];
  92       RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
  93       ExecStart = pkgs.writeShellScript "watch-lte" ''
  94         set -eux
  95         lastPONG=$(date +%s)
  96         while sleep 5; do
  97           if ping 9.9.9.9 --count 1 --linger 20 --interval 1 --quiet --numeric
  98           then lastPONG=$(date +%s)
  99           fi
 100           if test $(( $(date +%s) - lastPONG )) -gt 300
 101           then
 102             modem=$(mmcli -L -J | jq -r '.["modem-list"][0]') || true
 103             mmcli -m "$modem" --command "AT+CFUN=1,1" || true
 104             sleep 10
 105             systemctl restart ModemManager
 106             sleep 10
 107             nmcli connection up Prixtel
 108             sleep 300
 109           fi
 110         done
 111       '';
 112       Restart = "on-failure";
 113       RestartSec = "10s";
 114     };
 115   };
 116   environment.systemPackages = [
 117     pkgs.modem-manager-gui
 118     pkgs.libmbim
 119     pkgs.chatty
 120     pkgs.gnome.gnome-contacts
 121     pkgs.picocom
 122     pkgs.tio
 123     pkgs.calls
 124     pkgs.d-spy
 125     # https://gitlab.com/mobian1/callaudiod/-/issues/26
 126     # https://gitlab.com/mobian1/callaudiod/-/issues/27
 127     pkgs.callaudiod
 128   ];
 129 }