aboutsummaryrefslogtreecommitdiffstats
path: root/wireguard-go-bridge/src/git.zx2c4.com/wireguard-go/api-ios.go
diff options
context:
space:
mode:
Diffstat (limited to 'wireguard-go-bridge/src/git.zx2c4.com/wireguard-go/api-ios.go')
-rw-r--r--wireguard-go-bridge/src/git.zx2c4.com/wireguard-go/api-ios.go128
1 files changed, 128 insertions, 0 deletions
diff --git a/wireguard-go-bridge/src/git.zx2c4.com/wireguard-go/api-ios.go b/wireguard-go-bridge/src/git.zx2c4.com/wireguard-go/api-ios.go
new file mode 100644
index 0000000..0caab3e
--- /dev/null
+++ b/wireguard-go-bridge/src/git.zx2c4.com/wireguard-go/api-ios.go
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+package main
+
+// #include <sys/types.h>
+// static void callLogger(void *func, int level, const char *tag, const char *msg)
+// {
+// ((void(*)(int, const char *, const char *))func)(level, tag, msg);
+// }
+import "C"
+
+import (
+ "bufio"
+ "git.zx2c4.com/wireguard-go/tun"
+ "golang.org/x/sys/unix"
+ "io/ioutil"
+ "log"
+ "math"
+ "os"
+ "os/signal"
+ "runtime"
+ "strings"
+ "unsafe"
+ "errors"
+)
+
+var loggerFunc unsafe.Pointer
+
+type CLogger struct {
+ level C.int
+ interfaceName string
+}
+
+func (l *CLogger) Write(p []byte) (int, error) {
+ if uintptr(loggerFunc) == 0 {
+ return 0, errors.New("No logger initialized")
+ }
+ C.callLogger(loggerFunc, l.level, C.CString("WireGuard/GoBackend/"+l.interfaceName), C.CString(string(p)))
+ return len(p), nil
+}
+
+var tunnelHandles map[int32]*Device
+
+func init() {
+ roamingDisabled = true
+ tunnelHandles = make(map[int32]*Device)
+ 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, 0, C.CString("WireGuard/GoBackend/Stacktrace"), (*_Ctype_char)(unsafe.Pointer(&buf[0])))
+ }
+ }
+ }
+ }()
+}
+
+//export wgSetLogger
+func wgSetLogger(loggerFn uintptr) {
+ loggerFunc = unsafe.Pointer(loggerFn)
+}
+
+//export wgTurnOn
+func wgTurnOn(ifnameRef string, settings string, readFn uintptr, writeFn uintptr, ctx uintptr) int32 {
+ interfaceName := string([]byte(ifnameRef))
+
+ logger := &Logger{
+ Debug: log.New(&CLogger{level: 0, interfaceName: interfaceName}, "", 0),
+ Info: log.New(&CLogger{level: 1, interfaceName: interfaceName}, "", 0),
+ Error: log.New(&CLogger{level: 2, interfaceName: interfaceName}, "", 0),
+ }
+
+ logger.Debug.Println("Debug log enabled")
+
+ tun := tun.CreateTUN(1280, unsafe.Pointer(readFn), unsafe.Pointer(writeFn), unsafe.Pointer(ctx))
+ logger.Info.Println("Attaching to interface")
+ device := NewDevice(tun, logger)
+
+ logger.Debug.Println("Interface has MTU", device.tun.mtu)
+
+ bufferedSettings := bufio.NewReadWriter(bufio.NewReader(strings.NewReader(settings)), bufio.NewWriter(ioutil.Discard))
+ setError := ipcSetOperation(device, bufferedSettings)
+ if setError != nil {
+ logger.Error.Println(setError)
+ return -1
+ }
+
+ 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 {
+ return -1
+ }
+ tunnelHandles[i] = device
+ return i
+}
+
+//export wgTurnOff
+func wgTurnOff(tunnelHandle int32) {
+ device, ok := tunnelHandles[tunnelHandle]
+ if !ok {
+ return
+ }
+ delete(tunnelHandles, tunnelHandle)
+ device.Close()
+}
+
+//export wgVersion
+func wgVersion() *C.char {
+ return C.CString(WireGuardGoVersion)
+}
+
+func main() {}