add initial stats

index.js

@@ -30,6 +30,7 @@ class HyperDHT extends DHT {
     this.listening = new Set()
     this.tracer = createTracer(this)
     this.connectionKeepAlive = opts.connectionKeepAlive || 0
+    this.stats = { punches: { consistent: 0, random: 0, open: 0 } }
 
     this._router = new Router(this, router)
     this._socketPool = new SocketPool(this, opts.host || '0.0.0.0')

lib/connect.js

@@ -206,6 +206,7 @@ async function holepunch (c, opts) {
     const addr = getFirstRemoteAddress(payload.addresses4, serverAddress)
     if (addr) {
       const socket = c.dht.socket
+      c.dht.stats.punches.open++
       c.onsocket(socket, addr.port, addr.host)
       return
     }

lib/holepuncher.js

@@ -182,19 +182,22 @@ module.exports = class Holepuncher {
     }
 
     if (local === FIREWALL.CONSISTENT && remote === FIREWALL.CONSISTENT) {
+      this.dht.stats.punches.consistent++
       this._consistentProbe()
       return true
     }
 
     if (!remoteVerifiedAddress) return false
 
     if (local === FIREWALL.CONSISTENT && remote >= FIREWALL.RANDOM) {
+      this.dht.stats.punches.random++
       this._incrementRandomized()
       this._randomProbes(remoteVerifiedAddress)
       return true
     }
 
     if (local >= FIREWALL.RANDOM && remote === FIREWALL.CONSISTENT) {
+      this.dht.stats.punches.random++
       this._incrementRandomized()
       await this._openBirthdaySockets(remoteVerifiedAddress)
       if (this.punching) this._keepAliveRandomNat(remoteVerifiedAddress)

lib/server.js

@@ -388,6 +388,7 @@ module.exports = class Server extends EventEmitter {
 
     if (remotePayload.firewall === FIREWALL.OPEN || direct) {
       const sock = direct ? socket : this.dht.socket
+      this.dht.stats.punches.open++
       hs.onsocket(sock, clientAddress.port, clientAddress.host)
       return hs
     }