119 lines
3.6 KiB
Nix
119 lines
3.6 KiB
Nix
# NOTE:
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# cfg.configFile contains secrets such as proxy servers' credential!
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# we dont want plaintext secrets in world-readable `/nix/store`.
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{ lib
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, config
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, pkgs
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, ...
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}:
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let
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cfg = config.services.mihomo;
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in
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{
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options.services.mihomo = {
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enable = lib.mkEnableOption "Mihomo, A rule-based proxy in Go";
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package = lib.mkPackageOption pkgs "mihomo" { };
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configFile = lib.mkOption {
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default = null;
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type = lib.types.nullOr lib.types.path;
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description = "Configuration file to use.";
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};
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webui = lib.mkOption {
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default = null;
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type = lib.types.nullOr lib.types.path;
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description = ''
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Local web interface to use.
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You can also use the following website:
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- metacubexd:
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- https://d.metacubex.one
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- https://metacubex.github.io/metacubexd
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- https://metacubexd.pages.dev
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- yacd:
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- https://yacd.haishan.me
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- clash-dashboard:
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- https://clash.razord.top
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'';
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};
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extraOpts = lib.mkOption {
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default = null;
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type = lib.types.nullOr lib.types.str;
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description = "Extra command line options to use.";
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};
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tunMode = lib.mkEnableOption ''
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necessary permission for Mihomo's systemd service for TUN mode to function properly.
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Keep in mind, that you still need to enable TUN mode manually in Mihomo's configuration
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'';
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};
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config = lib.mkIf cfg.enable {
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### systemd service
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systemd.services."mihomo" = {
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description = "Mihomo daemon, A rule-based proxy in Go.";
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documentation = [ "https://wiki.metacubex.one/" ];
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requires = [ "network-online.target" ];
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after = [ "network-online.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig =
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{
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ExecStart = lib.concatStringsSep " " [
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(lib.getExe cfg.package)
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"-d /var/lib/private/mihomo"
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(lib.optionalString (cfg.configFile != null) "-f \${CREDENTIALS_DIRECTORY}/config.yaml")
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(lib.optionalString (cfg.webui != null) "-ext-ui ${cfg.webui}")
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(lib.optionalString (cfg.extraOpts != null) cfg.extraOpts)
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];
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DynamicUser = true;
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StateDirectory = "mihomo";
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LoadCredential = "config.yaml:${cfg.configFile}";
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### Hardening
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AmbientCapabilities = "";
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CapabilityBoundingSet = "";
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DeviceAllow = "";
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LockPersonality = true;
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MemoryDenyWriteExecute = true;
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NoNewPrivileges = true;
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PrivateDevices = true;
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PrivateMounts = true;
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PrivateTmp = true;
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PrivateUsers = true;
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ProcSubset = "pid";
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ProtectClock = true;
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ProtectControlGroups = true;
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ProtectHome = true;
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ProtectHostname = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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ProtectProc = "invisible";
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ProtectSystem = "strict";
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RestrictRealtime = true;
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RestrictSUIDSGID = true;
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RestrictNamespaces = true;
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RestrictAddressFamilies = "AF_INET AF_INET6";
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SystemCallArchitectures = "native";
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SystemCallFilter = "@system-service bpf";
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UMask = "0077";
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}
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// lib.optionalAttrs cfg.tunMode {
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AmbientCapabilities = "CAP_NET_ADMIN";
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CapabilityBoundingSet = "CAP_NET_ADMIN";
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PrivateDevices = false;
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PrivateUsers = false;
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RestrictAddressFamilies = "AF_INET AF_INET6 AF_NETLINK";
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};
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};
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};
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meta.maintainers = with lib.maintainers; [ Guanran928 ];
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}
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