mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-11-22 20:00:27 +00:00
Searches called from api.go, various other tweaks, searches now have a callback for success/failure, node ID now reported by admin socket
This commit is contained in:
parent
eef2a02d0a
commit
160e01e84f
@ -10,6 +10,7 @@ import (
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"os/signal"
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"os/signal"
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"strings"
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"strings"
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"syscall"
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"syscall"
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"time"
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"golang.org/x/text/encoding/unicode"
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"golang.org/x/text/encoding/unicode"
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@ -267,6 +268,18 @@ func main() {
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defer func() {
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defer func() {
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n.core.Stop()
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n.core.Stop()
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}()
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}()
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// Some stuff
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go func() {
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time.Sleep(time.Second * 2)
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session, err := n.core.Dial("nodeid", "babd4e4bccb216f77bb723c1b034b63a652060aabfe9506b51f687183e9b0fd13f438876f5a3ab21cac9c8101eb88e2613fe2a8b0724add09d7ef5a72146c31f")
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logger.Println(session, err)
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b := []byte{1, 2, 3, 4, 5}
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for {
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logger.Println(session.Write(b))
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logger.Println(session.Read(b))
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time.Sleep(time.Second)
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}
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}()
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// Make some nice output that tells us what our IPv6 address and subnet are.
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// Make some nice output that tells us what our IPv6 address and subnet are.
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// This is just logged to stdout for the user.
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// This is just logged to stdout for the user.
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address := n.core.Address()
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address := n.core.Address()
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@ -277,6 +277,9 @@ func main() {
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fmt.Println("Coords:", coords)
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fmt.Println("Coords:", coords)
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}
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}
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if *verbose {
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if *verbose {
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if nodeID, ok := v.(map[string]interface{})["node_id"].(string); ok {
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fmt.Println("Node ID:", nodeID)
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}
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if boxPubKey, ok := v.(map[string]interface{})["box_pub_key"].(string); ok {
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if boxPubKey, ok := v.(map[string]interface{})["box_pub_key"].(string); ok {
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fmt.Println("Public encryption key:", boxPubKey)
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fmt.Println("Public encryption key:", boxPubKey)
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}
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}
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@ -640,7 +640,9 @@ func (a *admin) startTunWithMTU(ifname string, iftapmode bool, ifmtu int) error
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func (a *admin) getData_getSelf() *admin_nodeInfo {
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func (a *admin) getData_getSelf() *admin_nodeInfo {
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table := a.core.switchTable.table.Load().(lookupTable)
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table := a.core.switchTable.table.Load().(lookupTable)
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coords := table.self.getCoords()
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coords := table.self.getCoords()
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nodeid := *crypto.GetNodeID(&a.core.boxPub)
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self := admin_nodeInfo{
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self := admin_nodeInfo{
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{"node_id", hex.EncodeToString(nodeid[:])},
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{"box_pub_key", hex.EncodeToString(a.core.boxPub[:])},
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{"box_pub_key", hex.EncodeToString(a.core.boxPub[:])},
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{"ip", a.core.Address().String()},
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{"ip", a.core.Address().String()},
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{"subnet", a.core.Subnet().String()},
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{"subnet", a.core.Subnet().String()},
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@ -6,11 +6,13 @@ import (
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"time"
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"time"
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"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
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"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
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"github.com/yggdrasil-network/yggdrasil-go/src/util"
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)
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)
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func (c *Core) Dial(network, address string) (Conn, error) {
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func (c *Core) Dial(network, address string) (Conn, error) {
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var nodeID *crypto.NodeID
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conn := Conn{}
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var nodeMask *crypto.NodeID
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nodeID := crypto.NodeID{}
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nodeMask := crypto.NodeID{}
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// Process
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// Process
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switch network {
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switch network {
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case "nodeid":
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case "nodeid":
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@ -20,22 +22,51 @@ func (c *Core) Dial(network, address string) (Conn, error) {
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return Conn{}, err
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return Conn{}, err
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}
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}
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copy(nodeID[:], dest)
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copy(nodeID[:], dest)
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var m crypto.NodeID
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for i := range nodeMask {
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for i := range dest {
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nodeMask[i] = 0xFF
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m[i] = 0xFF
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}
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}
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copy(nodeMask[:], m[:])
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default:
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default:
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// An unexpected address type was given, so give up
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// An unexpected address type was given, so give up
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return Conn{}, errors.New("unexpected address type")
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return Conn{}, errors.New("unexpected address type")
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}
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}
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conn.core = c
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conn.nodeID = &nodeID
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conn.nodeMask = &nodeMask
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conn.core.router.doAdmin(func() {
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conn.startSearch()
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})
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return conn, nil
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}
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type Conn struct {
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core *Core
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nodeID *crypto.NodeID
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nodeMask *crypto.NodeID
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session *sessionInfo
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readDeadline time.Time
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writeDeadline time.Time
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}
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// This method should only be called from the router goroutine
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func (c *Conn) startSearch() {
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searchCompleted := func(sinfo *sessionInfo, err error) {
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if err != nil {
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c.core.log.Debugln("DHT search failed:", err)
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return
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}
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if sinfo != nil {
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c.session = sinfo
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c.core.log.Println("Search from API found", hex.EncodeToString(sinfo.theirPermPub[:]))
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}
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}
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// Try and search for the node on the network
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// Try and search for the node on the network
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doSearch := func() {
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doSearch := func() {
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sinfo, isIn := c.searches.searches[*nodeID]
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sinfo, isIn := c.core.searches.searches[*c.nodeID]
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if !isIn {
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if !isIn {
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sinfo = c.searches.newIterSearch(nodeID, nodeMask)
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c.core.log.Debugln("Starting search for", hex.EncodeToString(c.nodeID[:]))
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sinfo = c.core.searches.newIterSearch(c.nodeID, c.nodeMask, searchCompleted)
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}
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}
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c.searches.continueSearch(sinfo)
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c.core.searches.continueSearch(sinfo)
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}
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}
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var sinfo *sessionInfo
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var sinfo *sessionInfo
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var isIn bool
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var isIn bool
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@ -61,27 +92,62 @@ func (c *Core) Dial(network, address string) (Conn, error) {
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if time.Since(sinfo.pingSend) > time.Second {
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if time.Since(sinfo.pingSend) > time.Second {
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// Send at most 1 ping per second
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// Send at most 1 ping per second
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sinfo.pingSend = now
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sinfo.pingSend = now
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c.sessions.sendPingPong(sinfo, false)
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c.core.sessions.sendPingPong(sinfo, false)
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}
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}
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}
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}
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}
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}
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return Conn{
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session: sinfo,
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}, nil
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}
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type Conn struct {
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session *sessionInfo
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readDeadline time.Time
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writeDeadline time.Time
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}
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}
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func (c *Conn) Read(b []byte) (int, error) {
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func (c *Conn) Read(b []byte) (int, error) {
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return 0, nil
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if c.session == nil {
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return 0, errors.New("invalid session")
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}
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p := <-c.session.recv
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defer util.PutBytes(p.Payload)
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if !c.session.nonceIsOK(&p.Nonce) {
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return 0, errors.New("invalid nonce")
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}
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bs, isOK := crypto.BoxOpen(&c.session.sharedSesKey, p.Payload, &p.Nonce)
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if !isOK {
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util.PutBytes(bs)
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return 0, errors.New("failed to decrypt")
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}
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b = b[:0]
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b = append(b, bs...)
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c.session.updateNonce(&p.Nonce)
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c.session.time = time.Now()
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c.session.bytesRecvd += uint64(len(bs))
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return len(b), nil
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}
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}
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func (c *Conn) Write(b []byte) (int, error) {
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func (c *Conn) Write(b []byte) (int, error) {
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return 0, nil
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if c.session == nil {
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c.core.router.doAdmin(func() {
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c.startSearch()
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})
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return 0, errors.New("invalid session")
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}
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defer util.PutBytes(b)
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if !c.session.init {
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// To prevent using empty session keys
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return 0, errors.New("session not initialised")
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}
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// code isn't multithreaded so appending to this is safe
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coords := c.session.coords
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// Prepare the payload
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payload, nonce := crypto.BoxSeal(&c.session.sharedSesKey, b, &c.session.myNonce)
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defer util.PutBytes(payload)
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p := wire_trafficPacket{
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Coords: coords,
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Handle: c.session.theirHandle,
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Nonce: *nonce,
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Payload: payload,
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}
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packet := p.encode()
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c.session.bytesSent += uint64(len(b))
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c.session.send <- packet
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//c.session.core.router.out(packet)
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return len(b), nil
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}
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}
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func (c *Conn) Close() error {
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func (c *Conn) Close() error {
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@ -245,6 +245,12 @@ func (r *router) sendPacket(bs []byte) {
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return
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return
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}
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}
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}
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}
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searchCompleted := func(sinfo *sessionInfo, err error) {
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if err != nil {
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r.core.log.Debugln("DHT search failed:", err)
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return
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}
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}
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doSearch := func(packet []byte) {
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doSearch := func(packet []byte) {
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var nodeID, mask *crypto.NodeID
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var nodeID, mask *crypto.NodeID
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switch {
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switch {
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@ -270,7 +276,7 @@ func (r *router) sendPacket(bs []byte) {
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}
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}
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sinfo, isIn := r.core.searches.searches[*nodeID]
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sinfo, isIn := r.core.searches.searches[*nodeID]
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if !isIn {
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if !isIn {
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sinfo = r.core.searches.newIterSearch(nodeID, mask)
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sinfo = r.core.searches.newIterSearch(nodeID, mask, searchCompleted)
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}
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}
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if packet != nil {
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if packet != nil {
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sinfo.packet = packet
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sinfo.packet = packet
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@ -15,6 +15,7 @@ package yggdrasil
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// Some kind of max search steps, in case the node is offline, so we don't crawl through too much of the network looking for a destination that isn't there?
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// Some kind of max search steps, in case the node is offline, so we don't crawl through too much of the network looking for a destination that isn't there?
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import (
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import (
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"errors"
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"sort"
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"sort"
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"time"
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"time"
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@ -32,12 +33,13 @@ const search_RETRY_TIME = time.Second
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// Information about an ongoing search.
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// Information about an ongoing search.
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// Includes the target NodeID, the bitmask to match it to an IP, and the list of nodes to visit / already visited.
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// Includes the target NodeID, the bitmask to match it to an IP, and the list of nodes to visit / already visited.
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type searchInfo struct {
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type searchInfo struct {
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dest crypto.NodeID
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dest crypto.NodeID
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mask crypto.NodeID
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mask crypto.NodeID
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time time.Time
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time time.Time
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packet []byte
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packet []byte
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toVisit []*dhtInfo
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toVisit []*dhtInfo
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visited map[crypto.NodeID]bool
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visited map[crypto.NodeID]bool
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callback func(*sessionInfo, error)
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}
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}
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// This stores a map of active searches.
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// This stores a map of active searches.
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@ -61,7 +63,7 @@ func (s *searches) init(core *Core) {
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}
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}
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// Creates a new search info, adds it to the searches struct, and returns a pointer to the info.
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// Creates a new search info, adds it to the searches struct, and returns a pointer to the info.
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func (s *searches) createSearch(dest *crypto.NodeID, mask *crypto.NodeID) *searchInfo {
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func (s *searches) createSearch(dest *crypto.NodeID, mask *crypto.NodeID, callback func(*sessionInfo, error)) *searchInfo {
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now := time.Now()
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now := time.Now()
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for dest, sinfo := range s.searches {
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for dest, sinfo := range s.searches {
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if now.Sub(sinfo.time) > time.Minute {
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if now.Sub(sinfo.time) > time.Minute {
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@ -69,9 +71,10 @@ func (s *searches) createSearch(dest *crypto.NodeID, mask *crypto.NodeID) *searc
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}
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}
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}
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}
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info := searchInfo{
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info := searchInfo{
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dest: *dest,
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dest: *dest,
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mask: *mask,
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mask: *mask,
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time: now.Add(-time.Second),
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time: now.Add(-time.Second),
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callback: callback,
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}
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}
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s.searches[*dest] = &info
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s.searches[*dest] = &info
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return &info
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return &info
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@ -137,15 +140,15 @@ func (s *searches) doSearchStep(sinfo *searchInfo) {
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if len(sinfo.toVisit) == 0 {
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if len(sinfo.toVisit) == 0 {
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// Dead end, do cleanup
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// Dead end, do cleanup
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delete(s.searches, sinfo.dest)
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delete(s.searches, sinfo.dest)
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sinfo.callback(nil, errors.New("search reached dead end"))
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return
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return
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} else {
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// Send to the next search target
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var next *dhtInfo
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next, sinfo.toVisit = sinfo.toVisit[0], sinfo.toVisit[1:]
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rq := dhtReqKey{next.key, sinfo.dest}
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s.core.dht.addCallback(&rq, s.handleDHTRes)
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s.core.dht.ping(next, &sinfo.dest)
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}
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}
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// Send to the next search target
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var next *dhtInfo
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next, sinfo.toVisit = sinfo.toVisit[0], sinfo.toVisit[1:]
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rq := dhtReqKey{next.key, sinfo.dest}
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s.core.dht.addCallback(&rq, s.handleDHTRes)
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s.core.dht.ping(next, &sinfo.dest)
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}
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}
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// If we've recenty sent a ping for this search, do nothing.
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// If we've recenty sent a ping for this search, do nothing.
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@ -173,8 +176,8 @@ func (s *searches) continueSearch(sinfo *searchInfo) {
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}
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}
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// Calls create search, and initializes the iterative search parts of the struct before returning it.
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// Calls create search, and initializes the iterative search parts of the struct before returning it.
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func (s *searches) newIterSearch(dest *crypto.NodeID, mask *crypto.NodeID) *searchInfo {
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func (s *searches) newIterSearch(dest *crypto.NodeID, mask *crypto.NodeID, callback func(*sessionInfo, error)) *searchInfo {
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sinfo := s.createSearch(dest, mask)
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sinfo := s.createSearch(dest, mask, callback)
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sinfo.toVisit = s.core.dht.lookup(dest, true)
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sinfo.toVisit = s.core.dht.lookup(dest, true)
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sinfo.visited = make(map[crypto.NodeID]bool)
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sinfo.visited = make(map[crypto.NodeID]bool)
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return sinfo
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return sinfo
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@ -200,6 +203,7 @@ func (s *searches) checkDHTRes(info *searchInfo, res *dhtRes) bool {
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sinfo = s.core.sessions.createSession(&res.Key)
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sinfo = s.core.sessions.createSession(&res.Key)
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if sinfo == nil {
|
if sinfo == nil {
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// nil if the DHT search finished but the session wasn't allowed
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// nil if the DHT search finished but the session wasn't allowed
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|
info.callback(nil, errors.New("session not allowed"))
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return true
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return true
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}
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}
|
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_, isIn := s.core.sessions.getByTheirPerm(&res.Key)
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_, isIn := s.core.sessions.getByTheirPerm(&res.Key)
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@ -211,6 +215,7 @@ func (s *searches) checkDHTRes(info *searchInfo, res *dhtRes) bool {
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sinfo.coords = res.Coords
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sinfo.coords = res.Coords
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sinfo.packet = info.packet
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sinfo.packet = info.packet
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s.core.sessions.ping(sinfo)
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s.core.sessions.ping(sinfo)
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info.callback(sinfo, nil)
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// Cleanup
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// Cleanup
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delete(s.searches, res.Dest)
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delete(s.searches, res.Dest)
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return true
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return true
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@ -7,6 +7,7 @@ package yggdrasil
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import (
|
import (
|
||||||
"bytes"
|
"bytes"
|
||||||
"encoding/hex"
|
"encoding/hex"
|
||||||
|
"sync"
|
||||||
"time"
|
"time"
|
||||||
|
|
||||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||||
@ -17,35 +18,38 @@ import (
|
|||||||
// All the information we know about an active session.
|
// All the information we know about an active session.
|
||||||
// This includes coords, permanent and ephemeral keys, handles and nonces, various sorts of timing information for timeout and maintenance, and some metadata for the admin API.
|
// This includes coords, permanent and ephemeral keys, handles and nonces, various sorts of timing information for timeout and maintenance, and some metadata for the admin API.
|
||||||
type sessionInfo struct {
|
type sessionInfo struct {
|
||||||
core *Core
|
core *Core
|
||||||
reconfigure chan chan error
|
reconfigure chan chan error
|
||||||
theirAddr address.Address
|
theirAddr address.Address
|
||||||
theirSubnet address.Subnet
|
theirSubnet address.Subnet
|
||||||
theirPermPub crypto.BoxPubKey
|
theirPermPub crypto.BoxPubKey
|
||||||
theirSesPub crypto.BoxPubKey
|
theirSesPub crypto.BoxPubKey
|
||||||
mySesPub crypto.BoxPubKey
|
mySesPub crypto.BoxPubKey
|
||||||
mySesPriv crypto.BoxPrivKey
|
mySesPriv crypto.BoxPrivKey
|
||||||
sharedSesKey crypto.BoxSharedKey // derived from session keys
|
sharedSesKey crypto.BoxSharedKey // derived from session keys
|
||||||
theirHandle crypto.Handle
|
theirHandle crypto.Handle
|
||||||
myHandle crypto.Handle
|
myHandle crypto.Handle
|
||||||
theirNonce crypto.BoxNonce
|
theirNonce crypto.BoxNonce
|
||||||
myNonce crypto.BoxNonce
|
theirNonceMutex sync.RWMutex // protects the above
|
||||||
theirMTU uint16
|
myNonce crypto.BoxNonce
|
||||||
myMTU uint16
|
myNonceMutex sync.RWMutex // protects the above
|
||||||
wasMTUFixed bool // Was the MTU fixed by a receive error?
|
theirMTU uint16
|
||||||
time time.Time // Time we last received a packet
|
myMTU uint16
|
||||||
coords []byte // coords of destination
|
wasMTUFixed bool // Was the MTU fixed by a receive error?
|
||||||
packet []byte // a buffered packet, sent immediately on ping/pong
|
time time.Time // Time we last received a packet
|
||||||
init bool // Reset if coords change
|
coords []byte // coords of destination
|
||||||
send chan []byte
|
packet []byte // a buffered packet, sent immediately on ping/pong
|
||||||
recv chan *wire_trafficPacket
|
init bool // Reset if coords change
|
||||||
nonceMask uint64
|
send chan []byte
|
||||||
tstamp int64 // tstamp from their last session ping, replay attack mitigation
|
recv chan *wire_trafficPacket
|
||||||
mtuTime time.Time // time myMTU was last changed
|
nonceMask uint64
|
||||||
pingTime time.Time // time the first ping was sent since the last received packet
|
tstamp int64 // tstamp from their last session ping, replay attack mitigation
|
||||||
pingSend time.Time // time the last ping was sent
|
tstampMutex int64 // protects the above
|
||||||
bytesSent uint64 // Bytes of real traffic sent in this session
|
mtuTime time.Time // time myMTU was last changed
|
||||||
bytesRecvd uint64 // Bytes of real traffic received in this session
|
pingTime time.Time // time the first ping was sent since the last received packet
|
||||||
|
pingSend time.Time // time the last ping was sent
|
||||||
|
bytesSent uint64 // Bytes of real traffic sent in this session
|
||||||
|
bytesRecvd uint64 // Bytes of real traffic received in this session
|
||||||
}
|
}
|
||||||
|
|
||||||
// Represents a session ping/pong packet, andincludes information like public keys, a session handle, coords, a timestamp to prevent replays, and the tun/tap MTU.
|
// Represents a session ping/pong packet, andincludes information like public keys, a session handle, coords, a timestamp to prevent replays, and the tun/tap MTU.
|
||||||
@ -101,17 +105,14 @@ func (s *sessionInfo) timedout() bool {
|
|||||||
// Sessions are indexed by handle.
|
// Sessions are indexed by handle.
|
||||||
// Additionally, stores maps of address/subnet onto keys, and keys onto handles.
|
// Additionally, stores maps of address/subnet onto keys, and keys onto handles.
|
||||||
type sessions struct {
|
type sessions struct {
|
||||||
core *Core
|
core *Core
|
||||||
reconfigure chan chan error
|
reconfigure chan chan error
|
||||||
lastCleanup time.Time
|
lastCleanup time.Time
|
||||||
// Maps known permanent keys to their shared key, used by DHT a lot
|
permShared map[crypto.BoxPubKey]*crypto.BoxSharedKey // Maps known permanent keys to their shared key, used by DHT a lot
|
||||||
permShared map[crypto.BoxPubKey]*crypto.BoxSharedKey
|
sinfos map[crypto.Handle]*sessionInfo // Maps (secret) handle onto session info
|
||||||
// Maps (secret) handle onto session info
|
conns map[crypto.Handle]*Conn // Maps (secret) handle onto connections
|
||||||
sinfos map[crypto.Handle]*sessionInfo
|
byMySes map[crypto.BoxPubKey]*crypto.Handle // Maps mySesPub onto handle
|
||||||
// Maps mySesPub onto handle
|
byTheirPerm map[crypto.BoxPubKey]*crypto.Handle // Maps theirPermPub onto handle
|
||||||
byMySes map[crypto.BoxPubKey]*crypto.Handle
|
|
||||||
// Maps theirPermPub onto handle
|
|
||||||
byTheirPerm map[crypto.BoxPubKey]*crypto.Handle
|
|
||||||
addrToPerm map[address.Address]*crypto.BoxPubKey
|
addrToPerm map[address.Address]*crypto.BoxPubKey
|
||||||
subnetToPerm map[address.Subnet]*crypto.BoxPubKey
|
subnetToPerm map[address.Subnet]*crypto.BoxPubKey
|
||||||
}
|
}
|
||||||
|
Loading…
Reference in New Issue
Block a user