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Add multicast filter

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世界 2023-11-01 20:57:42 +08:00
parent b93db9639d
commit 150b116231
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3 changed files with 60 additions and 0 deletions
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7
stack_system.go
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@ -233,6 +233,10 @@ func (s *System) acceptLoop(listener net.Listener) {
}
func (s *System) processIPv4(packet clashtcpip.IPv4Packet) error {
destination := packet.DestinationIP()
if destination.IsMulticast() || !destination.IsGlobalUnicast() {
return common.Error(s.tun.Write(packet))
}
switch packet.Protocol() {
case clashtcpip.TCP:
return s.processIPv4TCP(packet, packet.Payload())
@ -246,6 +250,9 @@ func (s *System) processIPv4(packet clashtcpip.IPv4Packet) error {
}
func (s *System) processIPv6(packet clashtcpip.IPv6Packet) error {
if !packet.DestinationIP().IsGlobalUnicast() {
return common.Error(s.tun.Write(packet))
}
switch packet.Protocol() {
case clashtcpip.TCP:
return s.processIPv6TCP(packet, packet.Payload())