[RFC-9250]: Add QUIC server support (#6182)

Add DNS-over-QUIC server 

Signed-off-by: jaehnri <joao.henri.cr@gmail.com>
Signed-off-by: João Henri <joao.henri.cr@gmail.com>

plugin/pkg/parse/host.go

@@ -61,6 +61,8 @@ func HostPortOrFile(s ...string) ([]string, error) {
 				ss = net.JoinHostPort(host, transport.Port)
 			case transport.TLS:
 				ss = transport.TLS + "://" + net.JoinHostPort(host, transport.TLSPort)
+			case transport.QUIC:
+				ss = transport.QUIC + "://" + net.JoinHostPort(host, transport.QUICPort)
 			case transport.GRPC:
 				ss = transport.GRPC + "://" + net.JoinHostPort(host, transport.GRPCPort)
 			case transport.HTTPS:

plugin/pkg/parse/transport.go

@@ -19,6 +19,10 @@ func Transport(s string) (trans string, addr string) {
 		s = s[len(transport.DNS+"://"):]
 		return transport.DNS, s
 
+	case strings.HasPrefix(s, transport.QUIC+"://"):
+		s = s[len(transport.QUIC+"://"):]
+		return transport.QUIC, s
+
 	case strings.HasPrefix(s, transport.GRPC+"://"):
 		s = s[len(transport.GRPC+"://"):]
 		return transport.GRPC, s

plugin/pkg/transport/transport.go

@@ -4,6 +4,7 @@ package transport
 const (
 	DNS   = "dns"
 	TLS   = "tls"
+	QUIC  = "quic"
 	GRPC  = "grpc"
 	HTTPS = "https"
 	UNIX  = "unix"
@@ -15,6 +16,8 @@ const (
 	Port = "53"
 	// TLSPort is the default port for DNS-over-TLS.
 	TLSPort = "853"
+	// QUICPort is the default port for DNS-over-QUIC.
+	QUICPort = "853"
 	// GRPCPort is the default port for DNS-over-gRPC.
 	GRPCPort = "443"
 	// HTTPSPort is the default port for DNS-over-HTTPS.