package inbound import ( C "github.com/Dreamacro/clash/constant" "github.com/Dreamacro/clash/transport/socks5" ) // PacketAdapter is a UDP Packet adapter for socks/redir/tun type PacketAdapter struct { C.UDPPacket metadata *C.Metadata } // Metadata returns destination metadata func (s *PacketAdapter) Metadata() *C.Metadata { return s.metadata } // NewPacket is PacketAdapter generator func NewPacket(target socks5.Addr, packet C.UDPPacket, source C.Type, additions ...Addition) C.PacketAdapter { metadata := parseSocksAddr(target) metadata.NetWork = C.UDP metadata.Type = source for _, addition := range additions { addition.Apply(metadata) } if ip, port, err := parseAddr(packet.LocalAddr()); err == nil { metadata.SrcIP = ip metadata.SrcPort = port } if p, ok := packet.(C.UDPPacketInAddr); ok { if ip, port, err := parseAddr(p.InAddr()); err == nil { metadata.InIP = ip metadata.InPort = port } } return &PacketAdapter{ packet, metadata, } }