added bool and if logic to conrtol connections -- errors do not cause crashes now -- some connections still cause a hang

src/scanStuff/scanStuff.go

@@ -82,9 +82,11 @@ func (s *Scan) Start() error {
 		sublog = log.With().Int("Scan_ID", s.ID).Str("LocalName", lname).Str("MAC", addr).
 			Int16("RSSI", rssi).Logger()
 
+		//could add -t option to enable this feature for active tracking
 		// Skipping duplicate results
 		if lname == projVars.ScanList[result.Address.String()] {
 			return
+			//TODO flag for active tracking
 		}
 
 		// Upon finding new and valid info we update the time for last activity
@@ -109,7 +111,7 @@ func (s *Scan) Start() error {
 			sublog.Debug().Str("UUID", svc.UUID).Msg("SERVICE_DISCOVERED")
 		}
 
-		if projVars.AttackMode == true {
+		if projVars.AttackMode == true /*changed to false for debug*/ {
 			////////////////////////////////////////////////////////////////////////
 			//var PreTargetHandling type
 
@@ -121,52 +123,65 @@ func (s *Scan) Start() error {
 
 			projVars.ScanAdapter.SetConnectHandler(func(result bluetooth.Addresser, connected bool) {
 
+				connected = projVars.ConnectedToTarget
+
+				projVars.ConnectedToTarget = true
+
 			})
 
-			time.Sleep(20 * time.Millisecond)
+			//time.Sleep(20 * time.Millisecond)
 
-			TargetDevice, _ := projVars.ScanAdapter.Connect(result.Address, bluetooth.ConnectionParams{})
+			TargetDevice, err := projVars.ScanAdapter.Connect(result.Address, bluetooth.ConnectionParams{})
+			if err != nil {
+				log.Err(err).Msg("CONNECTION_ERROR")
+			}
 
-			var targetServices []bluetooth.DeviceService
+			if projVars.ConnectedToTarget == true {
+				var targetServices []bluetooth.DeviceService
 
-			time.Sleep(20 * time.Millisecond)
+				//time.Sleep(20 * time.Millisecond)
 
-			targetServices, _ = TargetDevice.DiscoverServices(nil)
-
-			buf := make([]byte, 255)
-
-			for _, srvcs := range targetServices {
-				charSer := eros.Service{
-					UUID: srvcs.String(),
+				targetServices, err = TargetDevice.DiscoverServices(nil)
+				if err != nil {
+					log.Debug().Err(err).Msg("DISCOVER_SERVICE_ERROR")
 				}
 
-				//time.Sleep(1 * time.Second)
+				buf := make([]byte, 255)
 
-				chars, _ := srvcs.DiscoverCharacteristics(nil)
-
-				dev.Services = append(dev.Services, charSer)
-				for _, char := range chars {
-
-					//dev.Services = append(dev.Services)
+				for _, srvcs := range targetServices {
+					charSer := eros.Service{
+						UUID: srvcs.String(),
+					}
 
 					//time.Sleep(1 * time.Second)
 
-					//if char.
+					chars, _ := srvcs.DiscoverCharacteristics(nil)
 
-					ReadPos, _ := char.Read(buf)
+					dev.Services = append(dev.Services, charSer)
+					for _, char := range chars {
 
-					sublog.Info().Str("UUID", char.UUID().String()).
-						Int("Bytes", ReadPos).Str("Value", string(buf[:ReadPos])).Msg("NEW_CHARACTERISTIC")
+						//dev.Services = append(dev.Services)
 
-					//println("Rawvalue = ", buf[i])
+						//time.Sleep(1 * time.Second)
 
+						//if char.
+
+						ReadPos, _ := char.Read(buf)
+
+						sublog.Info().Str("UUID", char.UUID().String()).
+							Int("Bytes", ReadPos).Str("Value", string(buf[:ReadPos])).Msg("NEW_CHARACTERISTIC")
+
+						//println("Rawvalue = ", buf[i])
+
+					}
+
+					sublog.Debug().Str("Connected and enumerated", charSer.UUID).Msg("CONNECTION_SUCCESSFUL")
 				}
 
-				sublog.Debug().Str("Connected and enumerated", charSer.UUID).Msg("CONNECTION_SUCCESSFUL")
+				TargetDevice.Disconnect()
+				//projVars.ScanAdapter.Enable()
+				projVars.ConnectedToTarget = false
 			}
-
-			TargetDevice.Disconnect()
-			//projVars.ScanAdapter.Enable()
 		}
 		//time.Sleep(5 * time.Second)
 

src/vars/projVars.go

@@ -19,6 +19,8 @@ var AdapterInUse = *&bluetooth.Adapter{}
 
 var AttackMode bool = false
 
+var ConnectedToTarget bool = false
+
 //var SrvcUUIDList map[uint32]string
 
 //hold the values for the initial ble scan results..