.files/nix/configurations/vanadium/nixos/connectivity.nix

{
  config,
  pkgs,
  lib,
  ...
}: {
  # For nautilius and iOS
  services.gvfs.enable = true;
  # iOS
  services.usbmuxd.enable = true;
  environment.systemPackages = with pkgs; [libimobiledevice idevicerestore];

  # https://unix.stackexchange.com/questions/592775/how-can-i-enable-apple-ios-fast-charge-support
  services.udev.extraRules = ''
    SUBSYSTEM=="usb", ACTION=="add", DRIVER=="apple-mfi-fastcharge", RUN+="/bin/sh -c 'echo Fast > /sys/class/power_supply/apple_mfi_fastcharge/charge_type'"
  '';

  users.users.root.openssh.authorizedKeys.keys = let
    ids = import ../../../identities.nix;
  in
    builtins.concatMap builtins.attrValues (builtins.attrValues ids);

  networking = {
    networkmanager.enable = lib.mkForce false;

    firewall.allowedTCPPorts = [
      8080

      # For 'localsend'
      # https://github.com/localsend/localsend?tab=readme-ov-file#setup
      53317
    ];

    # To enable roaming https://wiki.archlinux.org/title/Wpa_supplicant#Roaming
    wireless = {
      enable = true;
      userControlled.enable = true;
      secretsFile = config.age.secrets.wpa_password.path;
      scanOnLowSignal = false;
      networks = let
        properties = lib.flip lib.pipe;
        networks = lib.flip lib.genAttrs (_: {});

        # The higher the more preferred
        setPrio = i: lib.mapAttrs (_: conf: conf // {priority = i;});
        private = setPrio 10;
        limited = setPrio (-10);

        extraConfig = value: conf: conf // {extraConfig = conf.extraConfig or "" + value;};
        randomizeMac = lib.mapAttrs (_: extraConfig "mac_addr=1\n");
        roaming = lib.mapAttrs (_: extraConfig "bgscan=\"simple:30:-70:3600\"\n");

        hasPsk = let
          # wpa_supplicant uses `strchr` to seek to the first `=`, so the only forbidden character is `=`.
          escapePwdKey = lib.replaceStrings ["="] ["_"];
        in
          lib.mapAttrs (name: conf: conf // {pskRaw = "ext:${escapePwdKey conf.ssid or name}";});
      in
        lib.mkMerge [
          (properties [private hasPsk]
            (networks [
              "HiddenParadize@Earth2077"
              "Pei’s Wifi"
              "girlypop-net"
            ]))
          (properties [private roaming hasPsk]
            (networks [
              "annapurna"
              "5526-1"
            ]))

          #
          # School
          #
          (properties [private roaming]
            {
              eduroam = {
                authProtocols = ["WPA-EAP"];
                auth = ''
                  pairwise=CCMP
                  group=CCMP TKIP
                  eap=PEAP
                  ca_cert="${./certs/universite_de_rennes.pem}"
                  identity="ychiang@etudiant.univ-rennes.fr"
                  altsubject_match="DNS:radius.univ-rennes1.fr;DNS:radius1.univ-rennes1.fr;DNS:radius2.univ-rennes1.fr;DNS:vmradius-psf1.univ-rennes1.fr;DNS:vmradius-psf2.univ-rennes1.fr"
                  phase2="auth=MSCHAPV2"
                  password=ext:EDUROAM
                  anonymous_identity="anonymous@univ-rennes.fr"
                '';
              };
            })

          #
          # Cafés
          #
          (properties [private randomizeMac hasPsk]
            (networks [
              "A-WAY"
              "CAT.jpgcafe"
              "LOUISA" # 區公所
              "LouisaCoffee" # 七張
              "MetroTaipei x Louisa" # 大安
            ]))

          #
          # Open networks
          #
          #
          # Use this link to do portal login
          # http://detectportal.firefox.com/canonical.html
          (properties [randomizeMac]
            (networks [
              # Transport
              "_SNCF_WIFI_INOUI"
              "_WIFI_LYRIA"
              "EurostarTrainsWiFi"
              "SBB-FREE"
              "AOT Airport Free Wi-Fi by NT"

              # Library
              "NewTaipei"

              "Fami-WiFi"
            ]))

          #
          # Phones
          #
          (properties [limited hasPsk]
            (networks [
              "iPhone de Léana 江"
            ]))
        ];
    };
  };

  services.mullvad-vpn.enable = true;

  hardware.bluetooth.enable = true;

  #
  # Secure DNS
  #
  # https://nixos.wiki/wiki/Encrypted_DNS
  networking = {
    nameservers = ["127.0.0.1" "::1"];
    dhcpcd.extraConfig = "nohook resolv.conf";
    # networkmanager.dns = "none";
  };

  services.resolved.enable = false;

  services.dnscrypt-proxy2 = {
    enable = true;
    # Settings reference:
    # https://github.com/DNSCrypt/dnscrypt-proxy/blob/master/dnscrypt-proxy/example-dnscrypt-proxy.toml
    settings = {
      listen_addresses = ["127.0.0.1:53"];
      ipv4_servers = true;

      require_dnssec = true;
      require_nolog = true;
      require_nofilter = true;

      lb_strategy = "p2";
      lb_estimator = true;

      # Add this to test if dnscrypt-proxy is actually used to resolve DNS requests
      # query_log.file = "/var/log/dnscrypt-proxy/query.log";
      sources.public-resolvers = {
        urls = [
          "https://raw.githubusercontent.com/DNSCrypt/dnscrypt-resolvers/master/v3/public-resolvers.md"
          "https://download.dnscrypt.info/resolvers-list/v3/public-resolvers.md"
        ];
        cache_file = "/var/cache/dnscrypt-proxy/public-resolvers.md";
        minisign_key = "RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3";
      };
    };
  };
}