Add dummy tun, helper functions

src/yggdrasil/mobile.go

@@ -0,0 +1,56 @@
+// +build mobile
+
+package yggdrasil
+
+import (
+	"log"
+	"os"
+	"regexp"
+
+	"github.com/yggdrasil-network/yggdrasil-go/src/config"
+	"github.com/yggdrasil-network/yggdrasil-go/src/util"
+)
+
+// This file is meant to "plug the gap" for mobile support, as Gomobile will
+// not create headers for Swift/Obj-C etc if they have complex (non-native)
+// types. Therefore for iOS we will expose some nice simple functions. Note
+// that in the case of iOS we handle reading/writing to/from TUN in Swift
+// therefore we use the "dummy" TUN interface instead.
+
+func (c *Core) StartAutoconfigure() error {
+	logger := log.New(os.Stdout, "", 0)
+	nc := config.GenerateConfig(true)
+	nc.IfName = "dummy"
+	nc.AdminListen = "tcp://[::]:9001"
+	nc.Peers = []string{}
+	if hostname, err := os.Hostname(); err == nil {
+		nc.NodeInfo = map[string]interface{}{"name": hostname}
+	}
+	ifceExpr, err := regexp.Compile(".*")
+	if err == nil {
+		c.ifceExpr = append(c.ifceExpr, ifceExpr)
+	}
+	if err := c.Start(nc, logger); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (c *Core) GetAddressString() string {
+	return c.GetAddress().String()
+}
+
+func (c *Core) GetSubnetString() string {
+	return c.GetSubnet().String()
+}
+
+func (c *Core) RouterRecvPacket() ([]byte, error) {
+	packet := <-c.router.tun.recv
+	return packet, nil
+}
+
+func (c *Core) RouterSendPacket(buf []byte) error {
+	packet := append(util.GetBytes(), buf[:]...)
+	c.router.tun.send <- packet
+	return nil
+}