fix: every wifi frame injection operation on macOS will print an error (ref #448)

modules/wifi/wifi_deauth.go

@@ -5,23 +5,11 @@ import (
 	"fmt"
 	"net"
 	"sort"
-	"time"
 
 	"github.com/bettercap/bettercap/network"
 	"github.com/bettercap/bettercap/packets"
 )
 
-func (mod *WiFiModule) injectPacket(data []byte) {
-	if err := mod.handle.WritePacketData(data); err != nil {
-		mod.Error("could not inject WiFi packet: %s", err)
-		mod.Session.Queue.TrackError()
-	} else {
-		mod.Session.Queue.TrackSent(uint64(len(data)))
-	}
-	// let the network card breath a little
-	time.Sleep(10 * time.Millisecond)
-}
-
 func (mod *WiFiModule) sendDeauthPacket(ap net.HardwareAddr, client net.HardwareAddr) {
 	for seq := uint16(0); seq < 64 && mod.Running(); seq++ {
 		if err, pkt := packets.NewDot11Deauth(ap, client, ap, seq); err != nil {

modules/wifi/wifi_inject.go

@@ -0,0 +1,18 @@
+//go:build !darwin
+
+package wifi
+
+import (
+	"time"
+)
+
+func (mod *WiFiModule) injectPacket(data []byte) {
+	if err := mod.handle.WritePacketData(data); err != nil {
+		mod.Error("could not inject WiFi packet: %s", err)
+		mod.Session.Queue.TrackError()
+	} else {
+		mod.Session.Queue.TrackSent(uint64(len(data)))
+	}
+	// let the network card breath a little
+	time.Sleep(10 * time.Millisecond)
+}

modules/wifi/wifi_inject_darwin.go

@@ -0,0 +1,5 @@
+package wifi
+
+func (mod *WiFiModule) injectPacket(data []byte) {
+	mod.Error("wifi frame injection is not supported on macOS (see https://github.com/bettercap/bettercap/issues/448)")
+}