package scenarios import ( v2net "github.com/v2ray/v2ray-core/common/net" ) const ( socks5Version = byte(0x05) ) func socks5AuthMethodRequest(methods ...byte) []byte { request := []byte{socks5Version, byte(len(methods))} request = append(request, methods...) return request } func appendAddress(request []byte, address v2net.Address) []byte { switch { case address.IsIPv4(): request = append(request, byte(0x01)) request = append(request, address.IP()...) case address.IsIPv6(): request = append(request, byte(0x04)) request = append(request, address.IP()...) case address.IsDomain(): request = append(request, byte(0x03), byte(len(address.Domain()))) request = append(request, []byte(address.Domain())...) } return request } func socks5Request(command byte, address v2net.Destination) []byte { request := []byte{socks5Version, command, 0} request = appendAddress(request, address.Address()) request = address.Port().Bytes(request) return request } func socks5UDPRequest(address v2net.Destination, payload []byte) []byte { request := make([]byte, 0, 1024) request = append(request, 0, 0, 0) request = appendAddress(request, address.Address()) request = address.Port().Bytes(request) request = append(request, payload...) return request }