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fix: send 4 magic packets to different address combinations #583

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This commit is contained in:
Maxi Quoß
2024-12-31 13:20:11 +01:00
parent c6a9af4086
commit 4540d8b851
1 changed files with 43 additions and 4 deletions
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47
backend/networking/magicpacket.go
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@@ -32,23 +32,62 @@ func SendMagicPacket(device *core.Record) error {
if err != nil {
return err
}
targetAddr := fmt.Sprintf("%s:%d", broadcastIp, 9)
// send wake via udp port 9
if err := wakeUDP(targetAddr, parsedMac, bytePassword); err != nil {
if err := wakeUDP(broadcastIp, parsedMac, bytePassword); err != nil {
return err
}
return nil
}
func wakeUDP(addr string, target net.HardwareAddr, password []byte) error {
func wakeUDP(broadcastIp string, target net.HardwareAddr, password []byte) error {
c, err := wol.NewClient()
if err != nil {
return err
}
defer c.Close()
return c.WakePassword(addr, target, password)
// send 4 magic packets to different addresses to enhance change of waking up
destinations := []struct {
Addr string
Target net.HardwareAddr
Password []byte
}{
{
// default user-calculated broadcast to port 9
Addr: fmt.Sprintf("%s:%d", broadcastIp, 9),
Target: target,
Password: password,
},
{
// user-calculated broadcast to port alternative port 7
Addr: fmt.Sprintf("%s:%d", broadcastIp, 7),
Target: target,
Password: password,
},
{
// broadcast to port 9
Addr: "255.255.255.255:9",
Target: target,
Password: password,
},
{
// broadcast to alternative port 7
Addr: "255.255.255.255:7",
Target: target,
Password: password,
},
}
for _, dest := range destinations {
if err := c.WakePassword(dest.Addr, dest.Target, dest.Password); err != nil {
return err
}
}
// send packet to default broadcast address
return c.WakePassword("255.255.255.255:9", target, password)
}
func getBroadcastIp(ipStr, maskStr string) (string, error) {