new: new can module for CAN-bus

modules/events_stream/events_view.go

@@ -120,6 +120,8 @@ func (mod *EventsStream) Render(output io.Writer, e session.Event) {
 		mod.viewBLEEvent(output, e)
 	} else if strings.HasPrefix(e.Tag, "hid.") {
 		mod.viewHIDEvent(output, e)
+	} else if strings.HasPrefix(e.Tag, "can.") {
+		mod.viewCANEvent(output, e)
 	} else if strings.HasPrefix(e.Tag, "gps.") {
 		mod.viewGPSEvent(output, e)
 	} else if strings.HasPrefix(e.Tag, "mod.") {

modules/events_stream/events_view_can.go

@@ -0,0 +1,51 @@
+package events_stream
+
+import (
+	"encoding/hex"
+	"fmt"
+	"io"
+
+	"github.com/bettercap/bettercap/modules/can"
+	"github.com/bettercap/bettercap/network"
+	"github.com/bettercap/bettercap/session"
+	"github.com/dustin/go-humanize"
+
+	"github.com/evilsocket/islazy/tui"
+)
+
+func (mod *EventsStream) viewCANEvent(output io.Writer, e session.Event) {
+	if e.Tag == "can.device.new" {
+		dev := e.Data.(*network.CANDevice)
+		fmt.Fprintf(output, "[%s] [%s] new CAN device %s (%s) detected.\n",
+			e.Time.Format(mod.timeFormat),
+			tui.Green(e.Tag),
+			tui.Bold(dev.Name),
+			tui.Dim(dev.Description))
+	} else if e.Tag == "can.message" {
+		msg := e.Data.(can.Message)
+
+		// unparsed
+		if msg.Name == "" {
+			fmt.Fprintf(output, "[%s] [%s] <id %d> (%s): %s\n",
+				e.Time.Format(mod.timeFormat),
+				tui.Green(e.Tag),
+				msg.Frame.ID,
+				tui.Dim(humanize.Bytes(uint64(msg.Frame.Length))),
+				hex.EncodeToString(msg.Frame.Data[:msg.Frame.Length]))
+		} else {
+			fmt.Fprintf(output, "[%s] [%s] <id %d> %s (%s) from %s:\n",
+				e.Time.Format(mod.timeFormat),
+				tui.Green(e.Tag),
+				msg.Frame.ID,
+				msg.Name,
+				tui.Dim(humanize.Bytes(uint64(msg.Frame.Length))),
+				tui.Bold(msg.Source.Name))
+
+			for name, value := range msg.Signals {
+				fmt.Fprintf(output, "  %s : %s\n", name, value)
+			}
+		}
+	} else {
+		fmt.Fprintf(output, "[%s] [%s] %v\n", e.Time.Format(mod.timeFormat), tui.Green(e.Tag), e)
+	}
+}