12 changed files with 414 additions and 12 deletions
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@ -60,7 +60,9 @@
        "${workspaceFolder}/node_modules/node-addon-api",
        "/usr/local/include/node",
        "${workspaceFolder}/addons/genKey/**",
-        "${workspaceFolder}/addons/tools/**"
+        "${workspaceFolder}/addons/tools/**",
+        "${workspaceFolder}/build/macos/x86_64/**",
+        "${workspaceFolder}/build/macos/aarch64/**"
      ],
      "defines": [
        "NAPI_DISABLE_CPP_EXCEPTIONS"
--- a/addons/genKey/wgkeys.cpp
+++ b/addons/genKey/wgkeys.cpp
@ -142,6 +142,19 @@ static void invert(fe o, const fe i) {
  memzero_explicit(c, sizeof(c));
 }

+std::string wgKeys::keyToHex(const std::string &keyInput) {
+    static const char hex_digits[] = "0123456789ABCDEF";
+    wg_key key;
+    wgKeys::stringToKey(key, keyInput);
+    std::string output;
+    output.reserve(sizeof(key) * 2);
+    for (unsigned char c : key) {
+      output.push_back(hex_digits[c >> 4]);
+      output.push_back(hex_digits[c & 15]);
+    }
+    return output;
+  }
+
 void wgKeys::generatePreshared(wg_key preshared_key) {
  #if _WIN32 || defined(__CYGWIN__)
  HCRYPTPROV hCryptProv;
--- a/addons/genKey/wgkeys.hh
+++ b/addons/genKey/wgkeys.hh
@ -14,6 +14,9 @@ namespace wgKeys {
  /* base64 to wg_key */
  void stringToKey(wg_key key, std::string keyBase64);

+  /* Convert base64 key to hexadecimal key */
+  std::string keyToHex(const std::string &keyInput);
+
  // bool key_is_zero(wg_key key);

  /* Generate preshared key */
--- a/addons/tools/wginterface-darwin.cpp
+++ b/addons/tools/wginterface-darwin.cpp
@ -0,0 +1,77 @@
+#include <napi.h>
+#include <iostream>
+#include <string>
+#include <wginterface.hh>
+#include <wgkeys.hh>
+#include "libwg-go.h"
+
+unsigned long maxName() {
+  return 16;
+}
+
+std::string versionDrive() {
+  return wgVersion();
+}
+
+void listDevices::Execute() {
+  auto dev = std::string(listWgDevices());
+  while (dev.length() > 0) {
+    if (dev.find(",") == std::string::npos) {
+      deviceNames[dev] = listInfo();
+      deviceNames[dev].tunType = "kernel";
+      break;
+    }
+    auto devName = dev.substr(0, dev.find(","));
+    dev = dev.substr(dev.find(",")+1);
+    deviceNames[devName] = listInfo();
+    deviceNames[devName].tunType = "kernel";
+  }
+}
+
+void deleteInterface::Execute() {}
+
+void setConfig::Execute() {
+  auto tunFd = getTunFile((char*)wgName.c_str());
+
+  if (tunFd == -1) {
+    auto res = std::string(createTun((char*)wgName.c_str()));
+    if (res.length() != 0) {
+      SetError(res);
+      return;
+    }
+    tunFd = getTunFile((char*)wgName.c_str());
+  }
+
+  if (tunFd == -1) {
+    SetError("Cannot get tun fd");
+    return;
+  }
+
+  std::string interfaceConfig = std::string("private_key=").append(wgKeys::keyToHex(this->privateKey));
+  if (this->portListen > 0) interfaceConfig = interfaceConfig.append(std::string("\nlisten_port=").append(std::to_string(this->portListen)));
+  if (this->fwmark > 0) interfaceConfig = interfaceConfig.append(std::string("\nfwmark=").append(std::to_string(this->fwmark)));
+  if (this->replacePeers) interfaceConfig = interfaceConfig.append("\nreplace_peers=true");
+  for (auto it = peersVector.begin(); it != peersVector.end(); ++it) {
+    const std::string peerPubKey = it->first;
+    auto peerConfig = it->second;
+    interfaceConfig = interfaceConfig.append(std::string("\npublic_key=")).append(wgKeys::keyToHex(peerPubKey));
+
+    if (peerConfig.removeMe) interfaceConfig = interfaceConfig.append(std::string("\nremove_me=true"));
+    else {
+      if (peerConfig.presharedKey.length() == B64_WG_KEY_LENGTH) interfaceConfig = interfaceConfig.append("\npreshared_key=").append(wgKeys::keyToHex(peerConfig.presharedKey));
+      if (peerConfig.endpoint.length() > 0) interfaceConfig = interfaceConfig.append("\nendpoint=").append(peerConfig.endpoint);
+      if (peerConfig.keepInterval) interfaceConfig = interfaceConfig.append("\npersistent_keepalive_interval=").append(std::to_string(peerConfig.keepInterval));
+      if (peerConfig.allowedIPs.size() > 0) interfaceConfig = interfaceConfig.append("\nreplace_allowed_ips=true");
+      for (auto ip : peerConfig.allowedIPs) {
+        interfaceConfig = interfaceConfig.append("\nallowed_ip=").append(ip);
+      }
+    }
+  }
+
+  std::cout << interfaceConfig << std::endl;
+  auto status = std::string(wgTurnOn((char*)interfaceConfig.append("\n\n").c_str(), tunFd));
+  if (status.length() > 0 ) SetError(status);
+  return;
+}
+
+void getConfig::Execute() {}
--- a/addons/wg-go/.gitignore
+++ b/addons/wg-go/.gitignore
@ -0,0 +1,2 @@
+*.a
+*.h
--- a/addons/wg-go/go.mod
+++ b/addons/wg-go/go.mod
@ -0,0 +1,11 @@
+module sirherobrine23.org/Wireguard/wireguard-tools.js/wg-tools
+
+go 1.21.6
+
+require (
+	golang.org/x/crypto v0.13.0 // indirect
+	golang.org/x/net v0.15.0 // indirect
+	golang.org/x/sys v0.12.0 // indirect
+	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
+	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173 // indirect
+)
--- a/addons/wg-go/go.sum
+++ b/addons/wg-go/go.sum
@ -0,0 +1,10 @@
+golang.org/x/crypto v0.13.0 h1:mvySKfSWJ+UKUii46M40LOvyWfN0s2U+46/jDd0e6Ck=
+golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
+golang.org/x/net v0.15.0 h1:ugBLEUaxABaB5AJqW9enI0ACdci2RUd4eP51NTBvuJ8=
+golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
+golang.org/x/sys v0.12.0 h1:CM0HF96J0hcLAwsHPJZjfdNzs0gftsLfgKt57wWHJ0o=
+golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 h1:B82qJJgjvYKsXS9jeunTOisW56dUokqW/FOteYJJ/yg=
+golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
+golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173 h1:/jFs0duh4rdb8uIfPMv78iAJGcPKDeqAFnaLBropIC4=
+golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173/go.mod h1:tkCQ4FQXmpAgYVh++1cq16/dH4QJtmvpRv19DWGAHSA=
--- a/addons/wg-go/main.go
+++ b/addons/wg-go/main.go
@ -0,0 +1,243 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2018-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+package main
+
+// #include <stdlib.h>
+// #include <sys/types.h>
+// static void callLogger(void *func, void *ctx, int level, const char *msg)
+// {
+// 	((void(*)(void *, int, const char *))func)(ctx, level, msg);
+// }
+import "C"
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"runtime"
+	"runtime/debug"
+	"strings"
+	"time"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+	"golang.zx2c4.com/wireguard/conn"
+	"golang.zx2c4.com/wireguard/device"
+	"golang.zx2c4.com/wireguard/tun"
+)
+
+var loggerFunc unsafe.Pointer
+var loggerCtx unsafe.Pointer
+
+type CLogger int
+
+func cstring(s string) *C.char {
+	b, err := unix.BytePtrFromString(s)
+	if err != nil {
+		b := [1]C.char{}
+		return &b[0]
+	}
+	return (*C.char)(unsafe.Pointer(b))
+}
+
+func (l CLogger) Printf(format string, args ...interface{}) {
+	if uintptr(loggerFunc) == 0 {
+		return
+	}
+	C.callLogger(loggerFunc, loggerCtx, C.int(l), cstring(fmt.Sprintf(format, args...)))
+}
+
+type tunnelHandle struct {
+	*device.Device
+	*device.Logger
+}
+
+var tunnelHandles = make(map[int32]tunnelHandle)
+var Tuns = make(map[string]tun.Device)
+
+func init() {
+	signals := make(chan os.Signal)
+	signal.Notify(signals, unix.SIGUSR2)
+	go func() {
+		buf := make([]byte, os.Getpagesize())
+		for {
+			select {
+			case <-signals:
+				n := runtime.Stack(buf, true)
+				buf[n] = 0
+				if uintptr(loggerFunc) != 0 {
+					C.callLogger(loggerFunc, loggerCtx, 0, (*C.char)(unsafe.Pointer(&buf[0])))
+				}
+			}
+		}
+	}()
+}
+
+//export wgSetLogger
+func wgSetLogger(context, loggerFn uintptr) {
+	loggerCtx = unsafe.Pointer(context)
+	loggerFunc = unsafe.Pointer(loggerFn)
+}
+
+//export listWgDevices
+func listWgDevices() *C.char {
+	wgInterfaceList := make([]byte, 0);
+	for tunName := range Tuns {
+		if (len(wgInterfaceList) != 0) { wgInterfaceList = append(wgInterfaceList, []byte(",")...); }
+		wgInterfaceList = append(wgInterfaceList, []byte(tunName)...)
+	}
+	return C.CString(string(wgInterfaceList))
+}
+
+//export createTun
+func createTun(name *C.char) *C.char {
+	goName := C.GoString(name)
+	if Tuns[goName] != nil {
+		return C.CString("")
+	}
+
+	tun, err := tun.CreateTUN(goName, device.DefaultMTU)
+	if err != nil {
+		return C.CString(err.Error())
+	}
+	Tuns[goName] = tun
+	return C.CString("")
+}
+
+//export getTunFile
+func getTunFile(name *C.char) int {
+	goName := C.GoString(name)
+	if Tuns[goName] != nil {
+		return int(Tuns[goName].File().Fd())
+	}
+	return -1
+}
+
+//export wgTurnOn
+func wgTurnOn(settings *C.char, tunFd int32) *C.char {
+	logger := &device.Logger{
+		Verbosef: CLogger(0).Printf,
+		Errorf:   CLogger(1).Printf,
+	}
+	dupTunFd, err := unix.Dup(int(tunFd))
+	if err != nil {
+		return C.CString(fmt.Sprintf("Unable to dup tun fd: %v", err))
+	}
+
+	err = unix.SetNonblock(dupTunFd, true)
+	if err != nil {
+		unix.Close(dupTunFd)
+		return C.CString(fmt.Sprintf("Unable to set tun fd as non blocking: %v", err))
+	}
+	tun, err := tun.CreateTUNFromFile(os.NewFile(uintptr(dupTunFd), "/dev/tun"), 0)
+	if err != nil {
+		unix.Close(dupTunFd)
+		return C.CString(fmt.Sprintf("Unable to create new tun device from fd: %v", err))
+	}
+	logger.Verbosef("Attaching to interface")
+	dev := device.NewDevice(tun, conn.NewStdNetBind(), logger)
+
+	err = dev.IpcSet(C.GoString(settings))
+	if err != nil {
+		unix.Close(dupTunFd)
+		return C.CString(fmt.Sprintf("Unable to set IPC settings: %v", err))
+	}
+
+	dev.Up()
+	logger.Verbosef("Device started")
+
+	tunnelHandles[tunFd] = tunnelHandle{dev, logger}
+	return C.CString("")
+}
+
+//export wgTurnOff
+func wgTurnOff(tunnelHandle int32) {
+	dev, ok := tunnelHandles[tunnelHandle]
+	if !ok {
+		return
+	}
+	delete(tunnelHandles, tunnelHandle)
+	dev.Close()
+}
+
+//export wgSetConfig
+func wgSetConfig(tunnelHandle int32, settings *C.char) int64 {
+	dev, ok := tunnelHandles[tunnelHandle]
+	if !ok {
+		return 0
+	}
+	err := dev.IpcSet(C.GoString(settings))
+	if err != nil {
+		dev.Errorf("Unable to set IPC settings: %v", err)
+		if ipcErr, ok := err.(*device.IPCError); ok {
+			return ipcErr.ErrorCode()
+		}
+		return -1
+	}
+	return 0
+}
+
+//export wgGetConfig
+func wgGetConfig(tunnelHandle int32) *C.char {
+	device, ok := tunnelHandles[tunnelHandle]
+	if !ok {
+		return nil
+	}
+	settings, err := device.IpcGet()
+	if err != nil {
+		return nil
+	}
+	return C.CString(settings)
+}
+
+//export wgBumpSockets
+func wgBumpSockets(tunnelHandle int32) {
+	dev, ok := tunnelHandles[tunnelHandle]
+	if !ok {
+		return
+	}
+	go func() {
+		for i := 0; i < 10; i++ {
+			err := dev.BindUpdate()
+			if err == nil {
+				dev.SendKeepalivesToPeersWithCurrentKeypair()
+				return
+			}
+			dev.Errorf("Unable to update bind, try %d: %v", i+1, err)
+			time.Sleep(time.Second / 2)
+		}
+		dev.Errorf("Gave up trying to update bind; tunnel is likely dysfunctional")
+	}()
+}
+
+//export wgDisableSomeRoamingForBrokenMobileSemantics
+func wgDisableSomeRoamingForBrokenMobileSemantics(tunnelHandle int32) {
+	dev, ok := tunnelHandles[tunnelHandle]
+	if !ok {
+		return
+	}
+	dev.DisableSomeRoamingForBrokenMobileSemantics()
+}
+
+//export wgVersion
+func wgVersion() *C.char {
+	info, ok := debug.ReadBuildInfo()
+	if !ok {
+		return C.CString("unknown")
+	}
+	for _, dep := range info.Deps {
+		if dep.Path == "golang.zx2c4.com/wireguard" {
+			parts := strings.Split(dep.Version, "-")
+			if len(parts) == 3 && len(parts[2]) == 12 {
+				return C.CString(parts[2][:7])
+			}
+			return C.CString(dep.Version)
+		}
+	}
+	return C.CString("unknown")
+}
+
+func main() {}
--- a/binding.yaml
+++ b/binding.yaml
@ -40,14 +40,31 @@
      flags_cc:
        - "-fPIC"
    macos:
+      defines:
+        - "LISTDEV"
+        - "GETCONFIG"
+        - "SETCONFIG"
+        - "DELIFACE"
      cflags_cc:
        - "-fexceptions"
      cflags:
        - "-fexceptions"
+      sources:
+        - "!addons/tools/wginterface-dummy.cpp"
+        - "addons/tools/wginterface-darwin.cpp"
+      includes:
+        - ./build/macos/x86_64
+        - ./build/macos/aarch64
+      prebuild:
+        - cwd: ./addons/wg-go
+          shell: bash
+          env:
+            CGO_ENABLED: "1"
+          run: go build -ldflags=-w -trimpath -v -o ${BUILDDIR}/libwg-go.o -buildmode c-archive .
    windows:
      sources:
-        - "addons/tools/wginterface-win.cpp"
        - "!addons/tools/wginterface-dummy.cpp"
+        - "addons/tools/wginterface-win.cpp"
      includes:
        - "addons/tools/win"
      defines:
--- a/package.json
+++ b/package.json
@ -45,6 +45,6 @@
  },
  "dependencies": {
    "node-addon-api": "^7.1.0",
-    "rebory": "^0.1.10"
+    "rebory": "^0.1.11-2"
  }
 }
--- a/src/wginterface.ts
+++ b/src/wginterface.ts
@ -23,8 +23,6 @@ const addon = rebory.loadAddon(path.join(__dirname, "../binding.yaml")).wginterf
 });
 export const { constants } = addon;

-console.log(addon);
-
 /** default location to run socket's */
 const defaultPath = (process.env.WIRWGUARD_GO_RUN||"").length > 0 ? path.resolve(process.cwd(), process.env.WIRWGUARD_GO_RUN) : process.platform === "win32" ? "\\\\.\\pipe\\WireGuard" : "/var/run/wireguard";

@ -114,13 +112,6 @@ export async function deleteInterface(wgName: string): Promise<void> {
 * @param config - Interface config
 */
 export async function setConfig(wgName: string, config: WgConfigSet): Promise<void> {
-  if (process.platform === "darwin") {
-    if (!(wgName.match(/^tun([0-9]+)$/))) throw new Error("Invalid name, example to valid: tun0");
-    // Replace to tun name
-    // const devNames = Object.keys(networkInterfaces()).filter(s => s.toLowerCase().startsWith("tun"));
-    // for (let i = 0n; i < BigInt(Number.MAX_SAFE_INTEGER); i++) if (devNames.indexOf((wgName = ("tun").concat(i.toString())))) break;
-  }
-
  if (typeof addon.setConfig === "function") return addon.setConfig(wgName, config);
  const client = netConnection(path.join(defaultPath, (wgName).concat(".sock")));
  const writel = (...data: any[]) => client.write(data.map(String).join("").concat("\n"));
--- a/src/wginterface_test.ts
+++ b/src/wginterface_test.ts
@ -0,0 +1,33 @@
+import { setConfig, deleteInterface, listDevices } from "./wginterface.js";
+import { privateKey, publicKey } from "./key.js";
+
+console.log("Creating interface");
+
+const peerPub = publicKey(await privateKey());
+
+await setConfig("utun15", {
+  privateKey: await privateKey(),
+  peers: {
+    [peerPub]: {
+      allowedIPs: [ "10.0.0.1/32" ]
+    }
+  }
+});
+await setConfig("utun16", {
+  privateKey: await privateKey(),
+  peers: {
+    [peerPub]: {
+      allowedIPs: [ "10.0.0.1/32" ]
+    }
+  }
+});
+
+console.log("List interface")
+console.log(await listDevices());
+
+console.log("Deleting interface")
+await deleteInterface("utun15");
+await deleteInterface("utun16");
+
+console.log("List interface 2")
+console.log(await listDevices());