libwg-go: don't use submodule

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

4 files changed, 0 insertions, 306 deletions

diff --git a/app/tools/libwg-go/src/api-android.go b/app/tools/libwg-go/src/api-android.go
deleted file mode 100644
index ddf175ab..00000000
--- a/app/tools/libwg-go/src/api-android.go
+++ /dev/null
@@ -1,198 +0,0 @@
-/* SPDX-License-Identifier: Apache-2.0
- *
- * Copyright (C) 2017-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- */
-
-package main
-
-// #cgo LDFLAGS: -llog
-// #include <android/log.h>
-import "C"
-
-import (
-	"bufio"
-	"golang.org/x/sys/unix"
-	"golang.zx2c4.com/wireguard/tun"
-	"log"
-	"math"
-	"net"
-	"os"
-	"os/signal"
-	"runtime"
-	"strings"
-	"unsafe"
-)
-
-type AndroidLogger struct {
-	level         C.int
-	interfaceName string
-}
-
-func (l AndroidLogger) Write(p []byte) (int, error) {
-	C.__android_log_write(l.level, C.CString("WireGuard/GoBackend/"+l.interfaceName), C.CString(string(p)))
-	return len(p), nil
-}
-
-type TunnelHandle struct {
-	device *Device
-	uapi   net.Listener
-}
-
-var tunnelHandles map[int32]TunnelHandle
-
-func init() {
-	roamingDisabled = true
-	tunnelHandles = make(map[int32]TunnelHandle)
-	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
-				C.__android_log_write(C.ANDROID_LOG_ERROR, C.CString("WireGuard/GoBackend/Stacktrace"), (*C.char)(unsafe.Pointer(&buf[0])))
-			}
-		}
-	}()
-}
-
-//export wgTurnOn
-func wgTurnOn(ifnameRef string, tunFd int32, settings string) int32 {
-	interfaceName := string([]byte(ifnameRef))
-
-	logger := &Logger{
-		Debug: log.New(&AndroidLogger{level: C.ANDROID_LOG_DEBUG, interfaceName: interfaceName}, "", 0),
-		Info:  log.New(&AndroidLogger{level: C.ANDROID_LOG_INFO, interfaceName: interfaceName}, "", 0),
-		Error: log.New(&AndroidLogger{level: C.ANDROID_LOG_ERROR, interfaceName: interfaceName}, "", 0),
-	}
-
-	logger.Debug.Println("Debug log enabled")
-
-	tun, name, err := tun.CreateTUNFromFD(int(tunFd))
-	if err != nil {
-		unix.Close(int(tunFd))
-		logger.Error.Println(err)
-		return -1
-	}
-
-	logger.Info.Println("Attaching to interface", name)
-	device := NewDevice(tun, logger)
-
-	logger.Debug.Println("Interface has MTU", device.tun.mtu)
-
-	setError := ipcSetOperation(device, bufio.NewReader(strings.NewReader(settings)))
-	if setError != nil {
-		unix.Close(int(tunFd))
-		logger.Error.Println(setError)
-		return -1
-	}
-
-	var uapi net.Listener
-
-	uapiFile, err := UAPIOpen(name)
-	if err != nil {
-		logger.Error.Println(err)
-	} else {
-		uapi, err = UAPIListen(name, uapiFile)
-		if err != nil {
-			uapiFile.Close()
-			logger.Error.Println(err)
-		} else {
-			go func() {
-				for {
-					conn, err := uapi.Accept()
-					if err != nil {
-						return
-					}
-					go ipcHandle(device, conn)
-				}
-			}()
-		}
-	}
-
-	device.Up()
-	logger.Info.Println("Device started")
-
-	var i int32
-	for i = 0; i < math.MaxInt32; i++ {
-		if _, exists := tunnelHandles[i]; !exists {
-			break
-		}
-	}
-	if i == math.MaxInt32 {
-		unix.Close(int(tunFd))
-		return -1
-	}
-	tunnelHandles[i] = TunnelHandle{device: device, uapi: uapi}
-	return i
-}
-
-//export wgTurnOff
-func wgTurnOff(tunnelHandle int32) {
-	handle, ok := tunnelHandles[tunnelHandle]
-	if !ok {
-		return
-	}
-	delete(tunnelHandles, tunnelHandle)
-	if handle.uapi != nil {
-		handle.uapi.Close()
-	}
-	handle.device.Close()
-}
-
-//export wgGetSocketV4
-func wgGetSocketV4(tunnelHandle int32) int32 {
-	handle, ok := tunnelHandles[tunnelHandle]
-	if !ok {
-		return -1
-	}
-	native, ok := handle.device.net.bind.(*NativeBind)
-	if !ok {
-		return -1
-	}
-	fd := int32(-1)
-	conn, err := native.ipv4.SyscallConn()
-	if err != nil {
-		return -1
-	}
-	err = conn.Control(func(f uintptr) {
-		fd = int32(f)
-	})
-	if err != nil {
-		return -1
-	}
-	return fd
-}
-
-//export wgGetSocketV6
-func wgGetSocketV6(tunnelHandle int32) int32 {
-	handle, ok := tunnelHandles[tunnelHandle]
-	if !ok {
-		return -1
-	}
-	native, ok := handle.device.net.bind.(*NativeBind)
-	if !ok {
-		return -1
-	}
-	fd := int32(-1)
-	conn, err := native.ipv6.SyscallConn()
-	if err != nil {
-		return -1
-	}
-	err = conn.Control(func(f uintptr) {
-		fd = int32(f)
-	})
-	if err != nil {
-		return -1
-	}
-	return fd
-}
-
-//export wgVersion
-func wgVersion() *C.char {
-	return C.CString(WireGuardGoVersion)
-}
-
-func main() {}
diff --git a/app/tools/libwg-go/src/jni.c b/app/tools/libwg-go/src/jni.c
deleted file mode 100644
index f6229a49..00000000
--- a/app/tools/libwg-go/src/jni.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/* SPDX-License-Identifier: Apache-2.0
- *
- * Copyright © 2017-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- */
-
-#include <jni.h>
-#include <stdlib.h>
-#include <string.h>
-
-struct go_string { const char *str; long n; };
-extern int wgTurnOn(struct go_string ifname, int tun_fd, struct go_string settings);
-extern void wgTurnOff(int handle);
-extern int wgGetSocketV4(int handle);
-extern int wgGetSocketV6(int handle);
-extern char *wgVersion();
-
-JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgTurnOn(JNIEnv *env, jclass c, jstring ifname, jint tun_fd, jstring settings)
-{
-	const char *ifname_str = (*env)->GetStringUTFChars(env, ifname, 0);
-	size_t ifname_len = (*env)->GetStringUTFLength(env, ifname);
-	const char *settings_str = (*env)->GetStringUTFChars(env, settings, 0);
-	size_t settings_len = (*env)->GetStringUTFLength(env, settings);
-	int ret = wgTurnOn((struct go_string){
-		.str = ifname_str,
-		.n = ifname_len
-	}, tun_fd, (struct go_string){
-		.str = settings_str,
-		.n = settings_len
-	});
-	(*env)->ReleaseStringUTFChars(env, ifname, ifname_str);
-	(*env)->ReleaseStringUTFChars(env, settings, settings_str);
-	return ret;
-}
-
-JNIEXPORT void JNICALL Java_com_wireguard_android_backend_GoBackend_wgTurnOff(JNIEnv *env, jclass c, jint handle)
-{
-	wgTurnOff(handle);
-}
-
-JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgGetSocketV4(JNIEnv *env, jclass c, jint handle)
-{
-	return wgGetSocketV4(handle);
-}
-
-JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgGetSocketV6(JNIEnv *env, jclass c, jint handle)
-{
-	return wgGetSocketV6(handle);
-}
-
-JNIEXPORT jstring JNICALL Java_com_wireguard_android_backend_GoBackend_wgVersion(JNIEnv *env, jclass c)
-{
-	jstring ret;
-	char *version = wgVersion();
-	if (!version)
-		return NULL;
-	ret = (*env)->NewStringUTF(env, version);
-	free(version);
-	return ret;
-}
diff --git a/app/tools/libwg-go/src/queueconstants.go b/app/tools/libwg-go/src/queueconstants.go
deleted file mode 100644
index dd11bf10..00000000
--- a/app/tools/libwg-go/src/queueconstants.go
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0
- *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
- */
-
-package main
-
-/* Reduce memory consumption for Android */
-
-const (
-	QueueOutboundSize          = 1024
-	QueueInboundSize           = 1024
-	QueueHandshakeSize         = 1024
-	MaxSegmentSize             = 2200
-	PreallocatedBuffersPerPool = 4096
-)
diff --git a/app/tools/libwg-go/src/tun/api-android.go b/app/tools/libwg-go/src/tun/api-android.go
deleted file mode 100644
index 75e80c5a..00000000
--- a/app/tools/libwg-go/src/tun/api-android.go
+++ /dev/null
@@ -1,33 +0,0 @@
-/* SPDX-License-Identifier: Apache-2.0
- *
- * Copyright (C) 2017-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- */
-
-package tun
-
-import (
-	"golang.zx2c4.com/wireguard/rwcancel"
-	"os"
-)
-
-func CreateTUNFromFD(tunFd int) (TUNDevice, string, error) {
-	file := os.NewFile(uintptr(tunFd), "/dev/tun")
-	tun := &nativeTun{
-		tunFile: file,
-		fd:      file.Fd(),
-		events:  make(chan TUNEvent, 5),
-		errors:  make(chan error, 5),
-		nopi:    true,
-	}
-	var err error
-	tun.fdCancel, err = rwcancel.NewRWCancel(int(tun.fd))
-	if err != nil {
-		return nil, "", err
-	}
-	name, err := tun.Name()
-	if err != nil {
-		tun.fdCancel.Cancel()
-		return nil, "", err
-	}
-	return tun, name, nil
-}