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Merge pull request #484 from neilalexander/config

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API changes
This commit is contained in:
Neil Alexander 2019-08-05 10:24:43 +01:00 committed by GitHub
commit f046249ac6
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5 changed files with 105 additions and 231 deletions
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src/.DS_Store vendored Normal file
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193
src/admin/admin.go
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@ -17,6 +17,7 @@ import (
"github.com/yggdrasil-network/yggdrasil-go/src/address"
"github.com/yggdrasil-network/yggdrasil-go/src/config"
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
"github.com/yggdrasil-network/yggdrasil-go/src/util"
"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
)
@ -78,11 +79,6 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
}
return Info{"list": handlers}, nil
})
/*
a.AddHandler("dot", []string{}, func(in Info) (Info, error) {
return Info{"dot": string(a.getResponse_dot())}, nil
})
*/
a.AddHandler("getSelf", []string{}, func(in Info) (Info, error) {
ip := c.Address().String()
subnet := c.Subnet()
@ -110,7 +106,7 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
"bytes_recvd": p.BytesRecvd,
"proto": p.Protocol,
"endpoint": p.Endpoint,
"box_pub_key": p.PublicKey,
"box_pub_key": hex.EncodeToString(p.PublicKey[:]),
}
}
return Info{"peers": peers}, nil
@ -128,7 +124,7 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
"bytes_recvd": s.BytesRecvd,
"proto": s.Protocol,
"endpoint": s.Endpoint,
"box_pub_key": s.PublicKey,
"box_pub_key": hex.EncodeToString(s.PublicKey[:]),
}
}
return Info{"switchpeers": switchpeers}, nil
@ -147,7 +143,7 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
dht[so] = Info{
"coords": fmt.Sprintf("%v", d.Coords),
"last_seen": d.LastSeen.Seconds(),
"box_pub_key": d.PublicKey,
"box_pub_key": hex.EncodeToString(d.PublicKey[:]),
}
}
return Info{"dht": dht}, nil
@ -164,7 +160,7 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
"mtu": s.MTU,
"uptime": s.Uptime.Seconds(),
"was_mtu_fixed": s.WasMTUFixed,
"box_pub_key": s.PublicKey,
"box_pub_key": hex.EncodeToString(s.PublicKey[:]),
}
}
return Info{"sessions": sessions}, nil
@ -243,31 +239,46 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
}
})
a.AddHandler("dhtPing", []string{"box_pub_key", "coords", "[target]"}, func(in Info) (Info, error) {
var reserr error
var result yggdrasil.DHTRes
if in["target"] == nil {
in["target"] = "none"
}
result, err := a.core.DHTPing(in["box_pub_key"].(string), in["coords"].(string), in["target"].(string))
if err == nil {
infos := make(map[string]map[string]string, len(result.Infos))
for _, dinfo := range result.Infos {
info := map[string]string{
"box_pub_key": hex.EncodeToString(dinfo.PublicKey[:]),
"coords": fmt.Sprintf("%v", dinfo.Coords),
}
addr := net.IP(address.AddrForNodeID(crypto.GetNodeID(&dinfo.PublicKey))[:]).String()
infos[addr] = info
coords := util.DecodeCoordString(in["coords"].(string))
var boxPubKey crypto.BoxPubKey
if b, err := hex.DecodeString(in["box_pub_key"].(string)); err == nil {
copy(boxPubKey[:], b[:])
if n, err := hex.DecodeString(in["target"].(string)); err == nil {
var targetNodeID crypto.NodeID
copy(targetNodeID[:], n[:])
result, reserr = a.core.DHTPing(boxPubKey, coords, &targetNodeID)
} else {
result, reserr = a.core.DHTPing(boxPubKey, coords, nil)
}
return Info{"nodes": infos}, nil
} else {
return Info{}, err
}
if reserr != nil {
return Info{}, reserr
}
infos := make(map[string]map[string]string, len(result.Infos))
for _, dinfo := range result.Infos {
info := map[string]string{
"box_pub_key": hex.EncodeToString(dinfo.PublicKey[:]),
"coords": fmt.Sprintf("%v", dinfo.Coords),
}
addr := net.IP(address.AddrForNodeID(crypto.GetNodeID(&dinfo.PublicKey))[:]).String()
infos[addr] = info
}
return Info{"nodes": infos}, nil
})
a.AddHandler("getNodeInfo", []string{"[box_pub_key]", "[coords]", "[nocache]"}, func(in Info) (Info, error) {
var nocache bool
if in["nocache"] != nil {
nocache = in["nocache"].(string) == "true"
}
var box_pub_key, coords string
var boxPubKey crypto.BoxPubKey
var coords []uint64
if in["box_pub_key"] == nil && in["coords"] == nil {
nodeinfo := a.core.MyNodeInfo()
var jsoninfo interface{}
@ -279,10 +290,14 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
} else if in["box_pub_key"] == nil || in["coords"] == nil {
return Info{}, errors.New("Expecting both box_pub_key and coords")
} else {
box_pub_key = in["box_pub_key"].(string)
coords = in["coords"].(string)
if b, err := hex.DecodeString(in["box_pub_key"].(string)); err == nil {
copy(boxPubKey[:], b[:])
} else {
return Info{}, err
}
coords = util.DecodeCoordString(in["coords"].(string))
}
result, err := a.core.GetNodeInfo(box_pub_key, coords, nocache)
result, err := a.core.GetNodeInfo(boxPubKey, coords, nocache)
if err == nil {
var m map[string]interface{}
if err = json.Unmarshal(result, &m); err == nil {
@ -472,133 +487,3 @@ func (a *AdminSocket) handleRequest(conn net.Conn) {
}
}
}
// getResponse_dot returns a response for a graphviz dot formatted
// representation of the known parts of the network. This is color-coded and
// labeled, and includes the self node, switch peers, nodes known to the DHT,
// and nodes with open sessions. The graph is structured as a tree with directed
// links leading away from the root.
/*
func (a *AdminSocket) getResponse_dot() []byte {
//self := a.getData_getSelf()
peers := a.core.GetSwitchPeers()
dht := a.core.GetDHT()
sessions := a.core.GetSessions()
// Start building a tree from all known nodes
type nodeInfo struct {
name string
key string
parent string
port uint64
options string
}
infos := make(map[string]nodeInfo)
// Get coords as a slice of strings, FIXME? this looks very fragile
coordSlice := func(coords string) []string {
tmp := strings.Replace(coords, "[", "", -1)
tmp = strings.Replace(tmp, "]", "", -1)
return strings.Split(tmp, " ")
}
// First fill the tree with all known nodes, no parents
addInfo := func(nodes []admin_nodeInfo, options string, tag string) {
for _, node := range nodes {
n := node.asMap()
info := nodeInfo{
key: n["coords"].(string),
options: options,
}
if len(tag) > 0 {
info.name = fmt.Sprintf("%s\n%s", n["ip"].(string), tag)
} else {
info.name = n["ip"].(string)
}
coordsSplit := coordSlice(info.key)
if len(coordsSplit) != 0 {
portStr := coordsSplit[len(coordsSplit)-1]
portUint, err := strconv.ParseUint(portStr, 10, 64)
if err == nil {
info.port = portUint
}
}
infos[info.key] = info
}
}
addInfo(dht, "fillcolor=\"#ffffff\" style=filled fontname=\"sans serif\"", "Known in DHT") // white
addInfo(sessions, "fillcolor=\"#acf3fd\" style=filled fontname=\"sans serif\"", "Open session") // blue
addInfo(peers, "fillcolor=\"#ffffb5\" style=filled fontname=\"sans serif\"", "Connected peer") // yellow
addInfo(append([]admin_nodeInfo(nil), *self), "fillcolor=\"#a5ff8a\" style=filled fontname=\"sans serif\"", "This node") // green
// Now go through and create placeholders for any missing nodes
for _, info := range infos {
// This is ugly string manipulation
coordsSplit := coordSlice(info.key)
for idx := range coordsSplit {
key := fmt.Sprintf("[%v]", strings.Join(coordsSplit[:idx], " "))
newInfo, isIn := infos[key]
if isIn {
continue
}
newInfo.name = "?"
newInfo.key = key
newInfo.options = "fontname=\"sans serif\" style=dashed color=\"#999999\" fontcolor=\"#999999\""
coordsSplit := coordSlice(newInfo.key)
if len(coordsSplit) != 0 {
portStr := coordsSplit[len(coordsSplit)-1]
portUint, err := strconv.ParseUint(portStr, 10, 64)
if err == nil {
newInfo.port = portUint
}
}
infos[key] = newInfo
}
}
// Now go through and attach parents
for _, info := range infos {
pSplit := coordSlice(info.key)
if len(pSplit) > 0 {
pSplit = pSplit[:len(pSplit)-1]
}
info.parent = fmt.Sprintf("[%v]", strings.Join(pSplit, " "))
infos[info.key] = info
}
// Finally, get a sorted list of keys, which we use to organize the output
var keys []string
for _, info := range infos {
keys = append(keys, info.key)
}
// sort
sort.SliceStable(keys, func(i, j int) bool {
return keys[i] < keys[j]
})
sort.SliceStable(keys, func(i, j int) bool {
return infos[keys[i]].port < infos[keys[j]].port
})
// Now print it all out
var out []byte
put := func(s string) {
out = append(out, []byte(s)...)
}
put("digraph {\n")
// First set the labels
for _, key := range keys {
info := infos[key]
put(fmt.Sprintf("\"%v\" [ label = \"%v\" %v ];\n", info.key, info.name, info.options))
}
// Then print the tree structure
for _, key := range keys {
info := infos[key]
if info.key == info.parent {
continue
} // happens for the root, skip it
port := fmt.Sprint(info.port)
style := "fontname=\"sans serif\""
if infos[info.parent].name == "?" || infos[info.key].name == "?" {
style = "fontname=\"sans serif\" style=dashed color=\"#999999\" fontcolor=\"#999999\""
}
put(fmt.Sprintf(" \"%+v\" -> \"%+v\" [ label = \"%v\" %s ];\n", info.parent, info.key, port, style))
}
put("}\n")
return out
}
*/

23
src/util/util.go
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@ -2,9 +2,13 @@ package util
// These are misc. utility functions that didn't really fit anywhere else
import "runtime"
import "sync"
import "time"
import (
"runtime"
"strconv"
"strings"
"sync"
"time"
)
// A wrapper around runtime.Gosched() so it doesn't need to be imported elsewhere.
func Yield() {
@ -91,3 +95,16 @@ func Difference(a, b []string) []string {
}
return ab
}
// DecodeCoordString decodes a string representing coordinates in [1 2 3] format
// and returns a []uint64.
func DecodeCoordString(in string) (out []uint64) {
s := strings.Trim(in, "[]")
t := strings.Split(s, " ")
for _, a := range t {
if u, err := strconv.ParseUint(a, 0, 64); err == nil {
out = append(out, u)
}
}
return out
}

97
src/yggdrasil/api.go
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@ -6,8 +6,6 @@ import (
"fmt"
"net"
"sort"
"strconv"
"strings"
"sync/atomic"
"time"
@ -34,7 +32,7 @@ type Peer struct {
// to a given node.
type SwitchPeer struct {
PublicKey crypto.BoxPubKey
Coords []byte
Coords []uint64
BytesSent uint64
BytesRecvd uint64
Port uint64
@ -46,14 +44,14 @@ type SwitchPeer struct {
// DHT searches.
type DHTEntry struct {
PublicKey crypto.BoxPubKey
Coords []byte
Coords []uint64
LastSeen time.Duration
}
// DHTRes represents a DHT response, as returned by DHTPing.
type DHTRes struct {
PublicKey crypto.BoxPubKey // key of the sender
Coords []byte // coords of the sender
Coords []uint64 // coords of the sender
Dest crypto.NodeID // the destination node ID
Infos []DHTEntry // response
}
@ -85,7 +83,7 @@ type SwitchQueue struct {
// Session represents an open session with another node.
type Session struct {
PublicKey crypto.BoxPubKey
Coords []byte
Coords []uint64
BytesSent uint64
BytesRecvd uint64
MTU uint16
@ -138,7 +136,7 @@ func (c *Core) GetSwitchPeers() []SwitchPeer {
}
coords := elem.locator.getCoords()
info := SwitchPeer{
Coords: append([]byte{}, coords...),
Coords: append([]uint64{}, wire_coordsBytestoUint64s(coords)...),
BytesSent: atomic.LoadUint64(&peer.bytesSent),
BytesRecvd: atomic.LoadUint64(&peer.bytesRecvd),
Port: uint64(elem.port),
@ -166,7 +164,7 @@ func (c *Core) GetDHT() []DHTEntry {
})
for _, v := range dhtentry {
info := DHTEntry{
Coords: append([]byte{}, v.coords...),
Coords: append([]uint64{}, wire_coordsBytestoUint64s(v.coords)...),
LastSeen: now.Sub(v.recv),
}
copy(info.PublicKey[:], v.key[:])
@ -214,7 +212,7 @@ func (c *Core) GetSessions() []Session {
var session Session
workerFunc := func() {
session = Session{
Coords: append([]byte{}, sinfo.coords...),
Coords: append([]uint64{}, wire_coordsBytestoUint64s(sinfo.coords)...),
MTU: sinfo.getMTU(),
BytesSent: sinfo.bytesSent,
BytesRecvd: sinfo.bytesRecvd,
@ -311,9 +309,9 @@ func (c *Core) EncryptionPublicKey() string {
}
// Coords returns the current coordinates of the node.
func (c *Core) Coords() []byte {
func (c *Core) Coords() []uint64 {
table := c.switchTable.table.Load().(lookupTable)
return table.self.getCoords()
return wire_coordsBytestoUint64s(table.self.getCoords())
}
// Address gets the IPv6 address of the Yggdrasil node. This is always a /128
@ -336,8 +334,8 @@ func (c *Core) MyNodeInfo() NodeInfoPayload {
return c.router.nodeinfo.getNodeInfo()
}
// SetNodeInfo the lcal nodeinfo. Note that nodeinfo can be any value or struct,
// it will be serialised into JSON automatically.
// SetNodeInfo sets the local nodeinfo. Note that nodeinfo can be any value or
// struct, it will be serialised into JSON automatically.
func (c *Core) SetNodeInfo(nodeinfo interface{}, nodeinfoprivacy bool) {
c.router.nodeinfo.setNodeInfo(nodeinfo, nodeinfoprivacy)
}
@ -346,30 +344,7 @@ func (c *Core) SetNodeInfo(nodeinfo interface{}, nodeinfoprivacy bool) {
// key and coordinates specified. The third parameter specifies whether a cached
// result is acceptable - this results in less traffic being generated than is
// necessary when, e.g. crawling the network.
func (c *Core) GetNodeInfo(keyString, coordString string, nocache bool) (NodeInfoPayload, error) {
var key crypto.BoxPubKey
if keyBytes, err := hex.DecodeString(keyString); err != nil {
return NodeInfoPayload{}, err
} else {
copy(key[:], keyBytes)
}
if !nocache {
if response, err := c.router.nodeinfo.getCachedNodeInfo(key); err == nil {
return response, nil
}
}
var coords []byte
for _, cstr := range strings.Split(strings.Trim(coordString, "[]"), " ") {
if cstr == "" {
// Special case, happens if trimmed is the empty string, e.g. this is the root
continue
}
if u64, err := strconv.ParseUint(cstr, 10, 8); err != nil {
return NodeInfoPayload{}, err
} else {
coords = append(coords, uint8(u64))
}
}
func (c *Core) GetNodeInfo(key crypto.BoxPubKey, coords []uint64, nocache bool) (NodeInfoPayload, error) {
response := make(chan *NodeInfoPayload, 1)
sendNodeInfoRequest := func() {
c.router.nodeinfo.addCallback(key, func(nodeinfo *NodeInfoPayload) {
@ -379,7 +354,7 @@ func (c *Core) GetNodeInfo(keyString, coordString string, nocache bool) (NodeInf
default:
}
})
c.router.nodeinfo.sendNodeInfo(key, coords, false)
c.router.nodeinfo.sendNodeInfo(key, wire_coordsUint64stoBytes(coords), false)
}
c.router.doAdmin(sendNodeInfoRequest)
go func() {
@ -389,7 +364,7 @@ func (c *Core) GetNodeInfo(keyString, coordString string, nocache bool) (NodeInf
for res := range response {
return *res, nil
}
return NodeInfoPayload{}, fmt.Errorf("getNodeInfo timeout: %s", keyString)
return NodeInfoPayload{}, fmt.Errorf("getNodeInfo timeout: %s", hex.EncodeToString(key[:]))
}
// SetSessionGatekeeper allows you to configure a handler function for deciding
@ -477,64 +452,38 @@ func (c *Core) RemoveAllowedEncryptionPublicKey(bstr string) (err error) {
// DHTPing sends a DHT ping to the node with the provided key and coords,
// optionally looking up the specified target NodeID.
func (c *Core) DHTPing(keyString, coordString, targetString string) (DHTRes, error) {
var key crypto.BoxPubKey
if keyBytes, err := hex.DecodeString(keyString); err != nil {
return DHTRes{}, err
} else {
copy(key[:], keyBytes)
}
var coords []byte
for _, cstr := range strings.Split(strings.Trim(coordString, "[]"), " ") {
if cstr == "" {
// Special case, happens if trimmed is the empty string, e.g. this is the root
continue
}
if u64, err := strconv.ParseUint(cstr, 10, 8); err != nil {
return DHTRes{}, err
} else {
coords = append(coords, uint8(u64))
}
}
func (c *Core) DHTPing(key crypto.BoxPubKey, coords []uint64, target *crypto.NodeID) (DHTRes, error) {
resCh := make(chan *dhtRes, 1)
info := dhtInfo{
key: key,
coords: coords,
coords: wire_coordsUint64stoBytes(coords),
}
target := *info.getNodeID()
if targetString == "none" {
// Leave the default target in place
} else if targetBytes, err := hex.DecodeString(targetString); err != nil {
return DHTRes{}, err
} else if len(targetBytes) != len(target) {
return DHTRes{}, errors.New("Incorrect target NodeID length")
} else {
var target crypto.NodeID
copy(target[:], targetBytes)
if target == nil {
target = info.getNodeID()
}
rq := dhtReqKey{info.key, target}
rq := dhtReqKey{info.key, *target}
sendPing := func() {
c.dht.addCallback(&rq, func(res *dhtRes) {
resCh <- res
})
c.dht.ping(&info, &target)
c.dht.ping(&info, &rq.dest)
}
c.router.doAdmin(sendPing)
// TODO: do something better than the below...
res := <-resCh
if res != nil {
r := DHTRes{
Coords: append([]byte{}, res.Coords...),
Coords: append([]uint64{}, wire_coordsBytestoUint64s(res.Coords)...),
}
copy(r.PublicKey[:], res.Key[:])
for _, i := range res.Infos {
e := DHTEntry{
Coords: append([]byte{}, i.coords...),
Coords: append([]uint64{}, wire_coordsBytestoUint64s(i.coords)...),
}
copy(e.PublicKey[:], i.key[:])
r.Infos = append(r.Infos, e)
}
return r, nil
}
return DHTRes{}, fmt.Errorf("DHT ping timeout: %s", keyString)
return DHTRes{}, fmt.Errorf("DHT ping timeout: %s", hex.EncodeToString(key[:]))
}

23
src/yggdrasil/wire.go
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@ -115,6 +115,29 @@ func wire_decode_coords(packet []byte) ([]byte, int) {
return packet[coordBegin:coordEnd], coordEnd
}
// Converts a []uint64 set of coords to a []byte set of coords.
func wire_coordsUint64stoBytes(in []uint64) (out []byte) {
for _, coord := range in {
c := wire_encode_uint64(coord)
out = append(out, c...)
}
return out
}
// Converts a []byte set of coords to a []uint64 set of coords.
func wire_coordsBytestoUint64s(in []byte) (out []uint64) {
offset := 0
for {
coord, length := wire_decode_uint64(in[offset:])
if length == 0 {
break
}
out = append(out, coord)
offset += length
}
return out
}
////////////////////////////////////////////////////////////////////////////////
// Encodes a swtichMsg into its wire format.