Break out mobile and dummy adapter

src/mobile/mobile.go

@@ -0,0 +1,143 @@
+package mobile
+
+import (
+	"encoding/json"
+	"os"
+	"time"
+
+	"github.com/gologme/log"
+
+	hjson "github.com/hjson/hjson-go"
+	"github.com/mitchellh/mapstructure"
+	"github.com/yggdrasil-network/yggdrasil-go/src/config"
+	"github.com/yggdrasil-network/yggdrasil-go/src/dummy"
+	"github.com/yggdrasil-network/yggdrasil-go/src/multicast"
+	"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
+)
+
+// Yggdrasil's mobile package 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.
+type Yggdrasil struct {
+	core      *yggdrasil.Core
+	multicast *multicast.Multicast
+	dummy.DummyAdapter
+}
+
+func (m *Yggdrasil) addStaticPeers(cfg *config.NodeConfig) {
+	if len(cfg.Peers) == 0 && len(cfg.InterfacePeers) == 0 {
+		return
+	}
+	for {
+		for _, peer := range cfg.Peers {
+			m.core.AddPeer(peer, "")
+			time.Sleep(time.Second)
+		}
+		for intf, intfpeers := range cfg.InterfacePeers {
+			for _, peer := range intfpeers {
+				m.core.AddPeer(peer, intf)
+				time.Sleep(time.Second)
+			}
+		}
+		time.Sleep(time.Minute)
+	}
+}
+
+// StartAutoconfigure starts a node with a randomly generated config
+func (m *Yggdrasil) StartAutoconfigure() error {
+	m.core = &yggdrasil.Core{}
+	//m.Adapter = dummy.DummyAdapter{}
+	mobilelog := MobileLogger{}
+	logger := log.New(mobilelog, "", 0)
+	nc := config.GenerateConfig()
+	nc.IfName = "dummy"
+	nc.AdminListen = "tcp://localhost:9001"
+	nc.Peers = []string{}
+	if hostname, err := os.Hostname(); err == nil {
+		nc.NodeInfo = map[string]interface{}{"name": hostname}
+	}
+	m.core.SetRouterAdapter(&m)
+	state, err := m.core.Start(nc, logger)
+	if err != nil {
+		return err
+	}
+	// Start the multicast interface
+	m.multicast.Init(m.core, state, logger, nil)
+	if err := m.multicast.Start(); err != nil {
+		logger.Errorln("An error occurred starting multicast:", err)
+	}
+	go m.addStaticPeers(nc)
+	return nil
+}
+
+// StartJSON starts a node with the given JSON config. You can get JSON config
+// (rather than HJSON) by using the GenerateConfigJSON() function
+func (m *Yggdrasil) StartJSON(configjson []byte) error {
+	m.core = &yggdrasil.Core{}
+	//m.Adapter = dummy.DummyAdapter{}
+	mobilelog := MobileLogger{}
+	logger := log.New(mobilelog, "", 0)
+	nc := config.GenerateConfig()
+	var dat map[string]interface{}
+	if err := hjson.Unmarshal(configjson, &dat); err != nil {
+		return err
+	}
+	if err := mapstructure.Decode(dat, &nc); err != nil {
+		return err
+	}
+	nc.IfName = "dummy"
+	m.core.SetRouterAdapter(&m)
+	state, err := m.core.Start(nc, logger)
+	if err != nil {
+		return err
+	}
+	// Start the multicast interface
+	m.multicast.Init(m.core, state, logger, nil)
+	if err := m.multicast.Start(); err != nil {
+		logger.Errorln("An error occurred starting multicast:", err)
+	}
+	go m.addStaticPeers(nc)
+	return nil
+}
+
+// Stops the mobile Yggdrasil instance
+func (m *Yggdrasil) Stop() error {
+	m.core.Stop()
+	if err := m.Stop(); err != nil {
+		return err
+	}
+	return nil
+}
+
+// GenerateConfigJSON generates mobile-friendly configuration in JSON format
+func GenerateConfigJSON() []byte {
+	nc := config.GenerateConfig()
+	nc.IfName = "dummy"
+	if json, err := json.Marshal(nc); err == nil {
+		return json
+	} else {
+		return nil
+	}
+}
+
+// GetAddressString gets the node's IPv6 address
+func (m *Yggdrasil) GetAddressString() string {
+	return m.core.Address().String()
+}
+
+// GetSubnetString gets the node's IPv6 subnet in CIDR notation
+func (m *Yggdrasil) GetSubnetString() string {
+	return m.core.Subnet().String()
+}
+
+// GetBoxPubKeyString gets the node's public encryption key
+func (m *Yggdrasil) GetBoxPubKeyString() string {
+	return m.core.BoxPubKey()
+}
+
+// GetSigPubKeyString gets the node's public signing key
+func (m *Yggdrasil) GetSigPubKeyString() string {
+	return m.core.SigPubKey()
+}

src/mobile/mobile_android.go

@@ -0,0 +1,12 @@
+// +build android
+
+package mobile
+
+import "log"
+
+type MobileLogger struct{}
+
+func (nsl MobileLogger) Write(p []byte) (n int, err error) {
+	log.Println(string(p))
+	return len(p), nil
+}

src/mobile/mobile_ios.go

@@ -0,0 +1,61 @@
+// +build darwin
+
+package mobile
+
+/*
+#cgo CFLAGS: -x objective-c
+#cgo LDFLAGS: -framework Foundation
+#import <Foundation/Foundation.h>
+void Log(const char *text) {
+  NSString *nss = [NSString stringWithUTF8String:text];
+  NSLog(@"%@", nss);
+}
+*/
+import "C"
+import (
+	"unsafe"
+)
+
+type MobileLogger struct {
+}
+
+func (nsl MobileLogger) Write(p []byte) (n int, err error) {
+	p = append(p, 0)
+	cstr := (*C.char)(unsafe.Pointer(&p[0]))
+	C.Log(cstr)
+	return len(p), nil
+}
+
+/*
+func (c *Core) AWDLCreateInterface(name, local, remote string, incoming bool) error {
+	if intf, err := c.link.awdl.create(name, local, remote, incoming); err != nil || intf == nil {
+		c.log.Println("c.link.awdl.create:", err)
+		return err
+	}
+	return nil
+}
+
+func (c *Core) AWDLShutdownInterface(name string) error {
+	return c.link.awdl.shutdown(name)
+}
+
+func (c *Core) AWDLRecvPacket(identity string) ([]byte, error) {
+	if intf := c.link.awdl.getInterface(identity); intf != nil {
+		read, ok := <-intf.rwc.toAWDL
+		if !ok {
+			return nil, errors.New("AWDLRecvPacket: channel closed")
+		}
+		return read, nil
+	}
+	return nil, errors.New("AWDLRecvPacket identity not known: " + identity)
+}
+
+func (c *Core) AWDLSendPacket(identity string, buf []byte) error {
+	packet := append(util.GetBytes(), buf[:]...)
+	if intf := c.link.awdl.getInterface(identity); intf != nil {
+		intf.rwc.fromAWDL <- packet
+		return nil
+	}
+	return errors.New("AWDLSendPacket identity not known: " + identity)
+}
+*/