mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-14 17:53:37 +00:00
6afb255d97
these changes were generated with nixq 0.0.2, by running nixq ">> lib.mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix nixq ">> mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix nixq ">> Inherit >> mdDoc[remove]" --batchmode nixos/**.nix two mentions of the mdDoc function remain in nixos/, both of which are inside of comments. Since lib.mdDoc is already defined as just id, this commit is a no-op as far as Nix (and the built manual) is concerned.
430 lines
17 KiB
Nix
430 lines
17 KiB
Nix
{ config, lib, options, pkgs, utils, ... }:
|
|
with lib;
|
|
let
|
|
cfg = config.services.wstunnel;
|
|
attrsToArgs = attrs: utils.escapeSystemdExecArgs (
|
|
mapAttrsToList
|
|
(name: value: if value == true then "--${name}" else "--${name}=${value}")
|
|
attrs
|
|
);
|
|
hostPortSubmodule = {
|
|
options = {
|
|
host = mkOption {
|
|
description = "The hostname.";
|
|
type = types.str;
|
|
};
|
|
port = mkOption {
|
|
description = "The port.";
|
|
type = types.port;
|
|
};
|
|
};
|
|
};
|
|
localRemoteSubmodule = {
|
|
options = {
|
|
local = mkOption {
|
|
description = "Local address and port to listen on.";
|
|
type = types.submodule hostPortSubmodule;
|
|
example = {
|
|
host = "127.0.0.1";
|
|
port = 51820;
|
|
};
|
|
};
|
|
remote = mkOption {
|
|
description = "Address and port on remote to forward traffic to.";
|
|
type = types.submodule hostPortSubmodule;
|
|
example = {
|
|
host = "127.0.0.1";
|
|
port = 51820;
|
|
};
|
|
};
|
|
};
|
|
};
|
|
hostPortToString = { host, port }: "${host}:${builtins.toString port}";
|
|
localRemoteToString = { local, remote }: utils.escapeSystemdExecArg "${hostPortToString local}:${hostPortToString remote}";
|
|
commonOptions = {
|
|
enable = mkOption {
|
|
description = "Whether to enable this `wstunnel` instance.";
|
|
type = types.bool;
|
|
default = true;
|
|
};
|
|
|
|
package = mkPackageOption pkgs "wstunnel" {};
|
|
|
|
autoStart = mkOption {
|
|
description = "Whether this tunnel server should be started automatically.";
|
|
type = types.bool;
|
|
default = true;
|
|
};
|
|
|
|
extraArgs = mkOption {
|
|
description = "Extra command line arguments to pass to `wstunnel`. Attributes of the form `argName = true;` will be translated to `--argName`, and `argName = \"value\"` to `--argName=value`.";
|
|
type = with types; attrsOf (either str bool);
|
|
default = {};
|
|
example = {
|
|
"someNewOption" = true;
|
|
"someNewOptionWithValue" = "someValue";
|
|
};
|
|
};
|
|
|
|
verboseLogging = mkOption {
|
|
description = "Enable verbose logging.";
|
|
type = types.bool;
|
|
default = false;
|
|
};
|
|
|
|
environmentFile = mkOption {
|
|
description = "Environment file to be passed to the systemd service. Useful for passing secrets to the service to prevent them from being world-readable in the Nix store. Note however that the secrets are passed to `wstunnel` through the command line, which makes them locally readable for all users of the system at runtime.";
|
|
type = types.nullOr types.path;
|
|
default = null;
|
|
example = "/var/lib/secrets/wstunnelSecrets";
|
|
};
|
|
};
|
|
|
|
serverSubmodule = { config, ...}: {
|
|
options = commonOptions // {
|
|
listen = mkOption {
|
|
description = "Address and port to listen on. Setting the port to a value below 1024 will also give the process the required `CAP_NET_BIND_SERVICE` capability.";
|
|
type = types.submodule hostPortSubmodule;
|
|
default = {
|
|
host = "0.0.0.0";
|
|
port = if config.enableHTTPS then 443 else 80;
|
|
};
|
|
defaultText = literalExpression ''
|
|
{
|
|
host = "0.0.0.0";
|
|
port = if enableHTTPS then 443 else 80;
|
|
}
|
|
'';
|
|
};
|
|
|
|
restrictTo = mkOption {
|
|
description = "Accepted traffic will be forwarded only to this service. Set to `null` to allow forwarding to arbitrary addresses.";
|
|
type = types.nullOr (types.submodule hostPortSubmodule);
|
|
example = {
|
|
host = "127.0.0.1";
|
|
port = 51820;
|
|
};
|
|
};
|
|
|
|
enableHTTPS = mkOption {
|
|
description = "Use HTTPS for the tunnel server.";
|
|
type = types.bool;
|
|
default = true;
|
|
};
|
|
|
|
tlsCertificate = mkOption {
|
|
description = "TLS certificate to use instead of the hardcoded one in case of HTTPS connections. Use together with `tlsKey`.";
|
|
type = types.nullOr types.path;
|
|
default = null;
|
|
example = "/var/lib/secrets/cert.pem";
|
|
};
|
|
|
|
tlsKey = mkOption {
|
|
description = "TLS key to use instead of the hardcoded on in case of HTTPS connections. Use together with `tlsCertificate`.";
|
|
type = types.nullOr types.path;
|
|
default = null;
|
|
example = "/var/lib/secrets/key.pem";
|
|
};
|
|
|
|
useACMEHost = mkOption {
|
|
description = "Use a certificate generated by the NixOS ACME module for the given host. Note that this will not generate a new certificate - you will need to do so with `security.acme.certs`.";
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
example = "example.com";
|
|
};
|
|
};
|
|
};
|
|
clientSubmodule = { config, ... }: {
|
|
options = commonOptions // {
|
|
connectTo = mkOption {
|
|
description = "Server address and port to connect to.";
|
|
type = types.submodule hostPortSubmodule;
|
|
example = {
|
|
host = "example.com";
|
|
};
|
|
};
|
|
|
|
enableHTTPS = mkOption {
|
|
description = "Enable HTTPS when connecting to the server.";
|
|
type = types.bool;
|
|
default = true;
|
|
};
|
|
|
|
localToRemote = mkOption {
|
|
description = "Local hosts and ports to listen on, plus the hosts and ports on remote to forward traffic to. Setting a local port to a value less than 1024 will additionally give the process the required CAP_NET_BIND_SERVICE capability.";
|
|
type = types.listOf (types.submodule localRemoteSubmodule);
|
|
default = [];
|
|
example = [ {
|
|
local = {
|
|
host = "127.0.0.1";
|
|
port = 8080;
|
|
};
|
|
remote = {
|
|
host = "127.0.0.1";
|
|
port = 8080;
|
|
};
|
|
} ];
|
|
};
|
|
|
|
dynamicToRemote = mkOption {
|
|
description = "Host and port for the SOCKS5 proxy to dynamically forward traffic to. Leave this at `null` to disable the SOCKS5 proxy. Setting the port to a value less than 1024 will additionally give the service the required CAP_NET_BIND_SERVICE capability.";
|
|
type = types.nullOr (types.submodule hostPortSubmodule);
|
|
default = null;
|
|
example = {
|
|
host = "127.0.0.1";
|
|
port = 1080;
|
|
};
|
|
};
|
|
|
|
udp = mkOption {
|
|
description = "Whether to forward UDP instead of TCP traffic.";
|
|
type = types.bool;
|
|
default = false;
|
|
};
|
|
|
|
udpTimeout = mkOption {
|
|
description = "When using UDP forwarding, timeout in seconds after which the tunnel connection is closed. `-1` means no timeout.";
|
|
type = types.int;
|
|
default = 30;
|
|
};
|
|
|
|
httpProxy = mkOption {
|
|
description = ''
|
|
Proxy to use to connect to the wstunnel server (`USER:PASS@HOST:PORT`).
|
|
|
|
::: {.warning}
|
|
Passwords specified here will be world-readable in the Nix store! To pass a password to the service, point the `environmentFile` option to a file containing `PROXY_PASSWORD=<your-password-here>` and set this option to `<user>:$PROXY_PASSWORD@<host>:<port>`. Note however that this will also locally leak the passwords at runtime via e.g. /proc/<pid>/cmdline.
|
|
|
|
:::
|
|
'';
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
};
|
|
|
|
soMark = mkOption {
|
|
description = "Mark network packets with the SO_MARK sockoption with the specified value. Setting this option will also enable the required `CAP_NET_ADMIN` capability for the systemd service.";
|
|
type = types.nullOr types.int;
|
|
default = null;
|
|
};
|
|
|
|
upgradePathPrefix = mkOption {
|
|
description = "Use a specific HTTP path prefix that will show up in the upgrade request to the `wstunnel` server. Useful when running `wstunnel` behind a reverse proxy.";
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
example = "wstunnel";
|
|
};
|
|
|
|
hostHeader = mkOption {
|
|
description = "Use this as the HTTP host header instead of the real hostname. Useful for circumventing hostname-based firewalls.";
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
};
|
|
|
|
tlsSNI = mkOption {
|
|
description = "Use this as the SNI while connecting via TLS. Useful for circumventing hostname-based firewalls.";
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
};
|
|
|
|
tlsVerifyCertificate = mkOption {
|
|
description = "Whether to verify the TLS certificate of the server. It might be useful to set this to `false` when working with the `tlsSNI` option.";
|
|
type = types.bool;
|
|
default = true;
|
|
};
|
|
|
|
# The original argument name `websocketPingFrequency` is a misnomer, as the frequency is the inverse of the interval.
|
|
websocketPingInterval = mkOption {
|
|
description = "Do a heartbeat ping every N seconds to keep up the websocket connection.";
|
|
type = types.nullOr types.ints.unsigned;
|
|
default = null;
|
|
};
|
|
|
|
upgradeCredentials = mkOption {
|
|
description = ''
|
|
Use these credentials to authenticate during the HTTP upgrade request (Basic authorization type, `USER:[PASS]`).
|
|
|
|
::: {.warning}
|
|
Passwords specified here will be world-readable in the Nix store! To pass a password to the service, point the `environmentFile` option to a file containing `HTTP_PASSWORD=<your-password-here>` and set this option to `<user>:$HTTP_PASSWORD`. Note however that this will also locally leak the passwords at runtime via e.g. /proc/<pid>/cmdline.
|
|
:::
|
|
'';
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
};
|
|
|
|
customHeaders = mkOption {
|
|
description = "Custom HTTP headers to send during the upgrade request.";
|
|
type = types.attrsOf types.str;
|
|
default = {};
|
|
example = {
|
|
"X-Some-Header" = "some-value";
|
|
};
|
|
};
|
|
};
|
|
};
|
|
generateServerUnit = name: serverCfg: {
|
|
name = "wstunnel-server-${name}";
|
|
value = {
|
|
description = "wstunnel server - ${name}";
|
|
requires = [ "network.target" "network-online.target" ];
|
|
after = [ "network.target" "network-online.target" ];
|
|
wantedBy = optional serverCfg.autoStart "multi-user.target";
|
|
|
|
serviceConfig = let
|
|
certConfig = config.security.acme.certs."${serverCfg.useACMEHost}";
|
|
in {
|
|
Type = "simple";
|
|
ExecStart = with serverCfg; let
|
|
resolvedTlsCertificate = if useACMEHost != null
|
|
then "${certConfig.directory}/fullchain.pem"
|
|
else tlsCertificate;
|
|
resolvedTlsKey = if useACMEHost != null
|
|
then "${certConfig.directory}/key.pem"
|
|
else tlsKey;
|
|
in ''
|
|
${package}/bin/wstunnel \
|
|
--server \
|
|
${optionalString (restrictTo != null) "--restrictTo=${utils.escapeSystemdExecArg (hostPortToString restrictTo)}"} \
|
|
${optionalString (resolvedTlsCertificate != null) "--tlsCertificate=${utils.escapeSystemdExecArg resolvedTlsCertificate}"} \
|
|
${optionalString (resolvedTlsKey != null) "--tlsKey=${utils.escapeSystemdExecArg resolvedTlsKey}"} \
|
|
${optionalString verboseLogging "--verbose"} \
|
|
${attrsToArgs extraArgs} \
|
|
${utils.escapeSystemdExecArg "${if enableHTTPS then "wss" else "ws"}://${hostPortToString listen}"}
|
|
'';
|
|
EnvironmentFile = optional (serverCfg.environmentFile != null) serverCfg.environmentFile;
|
|
DynamicUser = true;
|
|
SupplementaryGroups = optional (serverCfg.useACMEHost != null) certConfig.group;
|
|
PrivateTmp = true;
|
|
AmbientCapabilities = optionals (serverCfg.listen.port < 1024) [ "CAP_NET_BIND_SERVICE" ];
|
|
NoNewPrivileges = true;
|
|
RestrictNamespaces = "uts ipc pid user cgroup";
|
|
ProtectSystem = "strict";
|
|
ProtectHome = true;
|
|
ProtectKernelTunables = true;
|
|
ProtectKernelModules = true;
|
|
ProtectControlGroups = true;
|
|
PrivateDevices = true;
|
|
RestrictSUIDSGID = true;
|
|
|
|
};
|
|
};
|
|
};
|
|
generateClientUnit = name: clientCfg: {
|
|
name = "wstunnel-client-${name}";
|
|
value = {
|
|
description = "wstunnel client - ${name}";
|
|
requires = [ "network.target" "network-online.target" ];
|
|
after = [ "network.target" "network-online.target" ];
|
|
wantedBy = optional clientCfg.autoStart "multi-user.target";
|
|
|
|
serviceConfig = {
|
|
Type = "simple";
|
|
ExecStart = with clientCfg; ''
|
|
${package}/bin/wstunnel \
|
|
${concatStringsSep " " (builtins.map (x: "--localToRemote=${localRemoteToString x}") localToRemote)} \
|
|
${concatStringsSep " " (mapAttrsToList (n: v: "--customHeaders=\"${n}: ${v}\"") customHeaders)} \
|
|
${optionalString (dynamicToRemote != null) "--dynamicToRemote=${utils.escapeSystemdExecArg (hostPortToString dynamicToRemote)}"} \
|
|
${optionalString udp "--udp"} \
|
|
${optionalString (httpProxy != null) "--httpProxy=${httpProxy}"} \
|
|
${optionalString (soMark != null) "--soMark=${toString soMark}"} \
|
|
${optionalString (upgradePathPrefix != null) "--upgradePathPrefix=${upgradePathPrefix}"} \
|
|
${optionalString (hostHeader != null) "--hostHeader=${hostHeader}"} \
|
|
${optionalString (tlsSNI != null) "--tlsSNI=${tlsSNI}"} \
|
|
${optionalString tlsVerifyCertificate "--tlsVerifyCertificate"} \
|
|
${optionalString (websocketPingInterval != null) "--websocketPingFrequency=${toString websocketPingInterval}"} \
|
|
${optionalString (upgradeCredentials != null) "--upgradeCredentials=${upgradeCredentials}"} \
|
|
--udpTimeoutSec=${toString udpTimeout} \
|
|
${optionalString verboseLogging "--verbose"} \
|
|
${attrsToArgs extraArgs} \
|
|
${utils.escapeSystemdExecArg "${if enableHTTPS then "wss" else "ws"}://${hostPortToString connectTo}"}
|
|
'';
|
|
EnvironmentFile = optional (clientCfg.environmentFile != null) clientCfg.environmentFile;
|
|
DynamicUser = true;
|
|
PrivateTmp = true;
|
|
AmbientCapabilities = (optionals (clientCfg.soMark != null) [ "CAP_NET_ADMIN" ]) ++ (optionals ((clientCfg.dynamicToRemote.port or 1024) < 1024 || (any (x: x.local.port < 1024) clientCfg.localToRemote)) [ "CAP_NET_BIND_SERVICE" ]);
|
|
NoNewPrivileges = true;
|
|
RestrictNamespaces = "uts ipc pid user cgroup";
|
|
ProtectSystem = "strict";
|
|
ProtectHome = true;
|
|
ProtectKernelTunables = true;
|
|
ProtectKernelModules = true;
|
|
ProtectControlGroups = true;
|
|
PrivateDevices = true;
|
|
RestrictSUIDSGID = true;
|
|
};
|
|
};
|
|
};
|
|
in {
|
|
options.services.wstunnel = {
|
|
enable = mkEnableOption "wstunnel";
|
|
|
|
servers = mkOption {
|
|
description = "`wstunnel` servers to set up.";
|
|
type = types.attrsOf (types.submodule serverSubmodule);
|
|
default = {};
|
|
example = {
|
|
"wg-tunnel" = {
|
|
listen.port = 8080;
|
|
enableHTTPS = true;
|
|
tlsCertificate = "/var/lib/secrets/fullchain.pem";
|
|
tlsKey = "/var/lib/secrets/key.pem";
|
|
restrictTo = {
|
|
host = "127.0.0.1";
|
|
port = 51820;
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
clients = mkOption {
|
|
description = "`wstunnel` clients to set up.";
|
|
type = types.attrsOf (types.submodule clientSubmodule);
|
|
default = {};
|
|
example = {
|
|
"wg-tunnel" = {
|
|
connectTo = {
|
|
host = "example.com";
|
|
port = 8080;
|
|
};
|
|
enableHTTPS = true;
|
|
localToRemote = {
|
|
local = {
|
|
host = "127.0.0.1";
|
|
port = 51820;
|
|
};
|
|
remote = {
|
|
host = "127.0.0.1";
|
|
port = 51820;
|
|
};
|
|
};
|
|
udp = true;
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
config = mkIf cfg.enable {
|
|
systemd.services = (mapAttrs' generateServerUnit (filterAttrs (n: v: v.enable) cfg.servers)) // (mapAttrs' generateClientUnit (filterAttrs (n: v: v.enable) cfg.clients));
|
|
|
|
assertions = (mapAttrsToList (name: serverCfg: {
|
|
assertion = !(serverCfg.useACMEHost != null && (serverCfg.tlsCertificate != null || serverCfg.tlsKey != null));
|
|
message = ''
|
|
Options services.wstunnel.servers."${name}".useACMEHost and services.wstunnel.servers."${name}".{tlsCertificate, tlsKey} are mutually exclusive.
|
|
'';
|
|
}) cfg.servers) ++
|
|
(mapAttrsToList (name: serverCfg: {
|
|
assertion = !((serverCfg.tlsCertificate != null || serverCfg.tlsKey != null) && !(serverCfg.tlsCertificate != null && serverCfg.tlsKey != null));
|
|
message = ''
|
|
services.wstunnel.servers."${name}".tlsCertificate and services.wstunnel.servers."${name}".tlsKey need to be set together.
|
|
'';
|
|
}) cfg.servers) ++
|
|
(mapAttrsToList (name: clientCfg: {
|
|
assertion = !(clientCfg.localToRemote == [] && clientCfg.dynamicToRemote == null);
|
|
message = ''
|
|
Either one of services.wstunnel.clients."${name}".localToRemote or services.wstunnel.clients."${name}".dynamicToRemote must be set.
|
|
'';
|
|
}) cfg.clients);
|
|
};
|
|
|
|
meta.maintainers = with maintainers; [ alyaeanyx ];
|
|
}
|