Release 202412292127

wol.go

@@ -0,0 +1,50 @@
+package kvm
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"net"
+)
+
+// SendWOLMagicPacket sends a Wake-on-LAN magic packet to the specified MAC address
+func rpcSendWOLMagicPacket(macAddress string) error {
+	// Parse the MAC address
+	mac, err := net.ParseMAC(macAddress)
+	if err != nil {
+		return fmt.Errorf("invalid MAC address: %v", err)
+	}
+
+	// Create the magic packet
+	packet := createMagicPacket(mac)
+
+	// Set up UDP connection
+	conn, err := net.Dial("udp", "255.255.255.255:9")
+	if err != nil {
+		return fmt.Errorf("failed to establish UDP connection: %v", err)
+	}
+	defer conn.Close()
+
+	// Send the packet
+	_, err = conn.Write(packet)
+	if err != nil {
+		return fmt.Errorf("failed to send WOL packet: %v", err)
+	}
+
+	return nil
+}
+
+// createMagicPacket creates a Wake-on-LAN magic packet
+func createMagicPacket(mac net.HardwareAddr) []byte {
+	var buf bytes.Buffer
+
+	// Write 6 bytes of 0xFF
+	buf.Write(bytes.Repeat([]byte{0xFF}, 6))
+
+	// Write the target MAC address 16 times
+	for i := 0; i < 16; i++ {
+		binary.Write(&buf, binary.BigEndian, mac)
+	}
+
+	return buf.Bytes()
+}