mirror of
https://github.com/cwinfo/yggdrasil-go.git
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131 lines
3.5 KiB
Go
131 lines
3.5 KiB
Go
// +build mobile
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package yggdrasil
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import (
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"encoding/hex"
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"encoding/json"
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"os"
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"time"
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"github.com/gologme/log"
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hjson "github.com/hjson/hjson-go"
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"github.com/mitchellh/mapstructure"
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"github.com/yggdrasil-network/yggdrasil-go/src/config"
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"github.com/yggdrasil-network/yggdrasil-go/src/util"
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)
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// This file is meant to "plug the gap" for mobile support, as Gomobile will
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// not create headers for Swift/Obj-C etc if they have complex (non-native)
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// types. Therefore for iOS we will expose some nice simple functions. Note
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// that in the case of iOS we handle reading/writing to/from TUN in Swift
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// therefore we use the "dummy" TUN interface instead.
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func (c *Core) addStaticPeers(cfg *config.NodeConfig) {
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if len(cfg.Peers) == 0 && len(cfg.InterfacePeers) == 0 {
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return
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}
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for {
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for _, peer := range cfg.Peers {
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c.AddPeer(peer, "")
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time.Sleep(time.Second)
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}
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for intf, intfpeers := range cfg.InterfacePeers {
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for _, peer := range intfpeers {
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c.AddPeer(peer, intf)
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time.Sleep(time.Second)
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}
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}
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time.Sleep(time.Minute)
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}
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}
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// Starts a node with a randomly generated config.
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func (c *Core) StartAutoconfigure() error {
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mobilelog := MobileLogger{}
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logger := log.New(mobilelog, "", 0)
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nc := config.GenerateConfig()
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nc.IfName = "dummy"
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nc.AdminListen = "tcp://localhost:9001"
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nc.Peers = []string{}
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if hostname, err := os.Hostname(); err == nil {
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nc.NodeInfo = map[string]interface{}{"name": hostname}
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}
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if err := c.Start(nc, logger); err != nil {
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return err
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}
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go c.addStaticPeers(nc)
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return nil
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}
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// Starts a node with the given JSON config. You can get JSON config (rather
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// than HJSON) by using the GenerateConfigJSON() function.
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func (c *Core) StartJSON(configjson []byte) error {
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mobilelog := MobileLogger{}
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logger := log.New(mobilelog, "", 0)
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nc := config.GenerateConfig()
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var dat map[string]interface{}
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if err := hjson.Unmarshal(configjson, &dat); err != nil {
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return err
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}
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if err := mapstructure.Decode(dat, &nc); err != nil {
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return err
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}
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nc.IfName = "dummy"
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if err := c.Start(nc, logger); err != nil {
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return err
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}
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go c.addStaticPeers(nc)
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return nil
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}
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// Generates mobile-friendly configuration in JSON format.
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func GenerateConfigJSON() []byte {
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nc := config.GenerateConfig()
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nc.IfName = "dummy"
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if json, err := json.Marshal(nc); err == nil {
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return json
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} else {
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return nil
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}
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}
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// Gets the node's IPv6 address.
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func (c *Core) GetAddressString() string {
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return c.GetAddress().String()
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}
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// Gets the node's IPv6 subnet in CIDR notation.
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func (c *Core) GetSubnetString() string {
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return c.GetSubnet().String()
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}
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// Gets the node's public encryption key.
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func (c *Core) GetBoxPubKeyString() string {
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return hex.EncodeToString(c.boxPub[:])
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}
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// Gets the node's public signing key.
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func (c *Core) GetSigPubKeyString() string {
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return hex.EncodeToString(c.sigPub[:])
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}
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// Wait for a packet from the router. You will use this when implementing a
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// dummy adapter in place of real TUN - when this call returns a packet, you
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// will probably want to give it to the OS to write to TUN.
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func (c *Core) RouterRecvPacket() ([]byte, error) {
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packet := <-c.router.tun.recv
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return packet, nil
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}
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// Send a packet to the router. You will use this when implementing a
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// dummy adapter in place of real TUN - when the operating system tells you
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// that a new packet is available from TUN, call this function to give it to
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// Yggdrasil.
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func (c *Core) RouterSendPacket(buf []byte) error {
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packet := append(util.GetBytes(), buf[:]...)
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c.router.tun.send <- packet
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return nil
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}
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