return newMapper(SourceIP)
}

func NewDestinationPort() Mapper {
	return newMapper(DestinationPort)
}

type ProtocolMatch struct {
	TCP, HTTP *matcher.Matcher_OnMatch
}

func NewAppProtocol(pm ProtocolMatch) *matcher.Matcher {
	m := newMapper(ApplicationProtocolInput)
	m.Map["'h2c'"] = pm.HTTP
	m.Map["'http/1.1'"] = pm.HTTP
	if features.HTTP10 {
		m.Map["'http/1.0'"] = pm.HTTP
	}

			}
			if port.Protocol.IsUnsupported() {
				// If we need to sniff, insert two chains and the protocol detector
				chains = append(chains, tcpChain, httpChain)
				portMapper.Map[portString] = match.ToMatcher(match.NewAppProtocol(match.ProtocolMatch{
					TCP:  match.ToChain(tcpName),
					HTTP: match.ToChain(httpName),
				}))
			} else if port.Protocol.IsHTTP() {
				// Otherwise, just insert HTTP/TCP