add reload and plugin support for hop

listener/http2/h2/listener.go

@@ -1,6 +1,7 @@
 package h2
 
 import (
+	"context"
 	"crypto/tls"
 	"errors"
 	"net"
@@ -74,7 +75,12 @@ func (l *h2Listener) Init(md md.Metadata) (err error) {
 	if xnet.IsIPv4(l.options.Addr) {
 		network = "tcp4"
 	}
-	ln, err := net.Listen(network, l.options.Addr)
+	lc := net.ListenConfig{}
+	if l.md.mptcp {
+		lc.SetMultipathTCP(true)
+		l.logger.Debugf("mptcp enabled: %v", lc.MultipathTCP())
+	}
+	ln, err := lc.Listen(context.Background(), network, l.options.Addr)
 	if err != nil {
 		return err
 	}

listener/http2/h2/metadata.go

@@ -12,6 +12,7 @@ const (
 type metadata struct {
 	path    string
 	backlog int
+	mptcp   bool
 }
 
 func (l *h2Listener) parseMetadata(md mdata.Metadata) (err error) {
@@ -26,5 +27,7 @@ func (l *h2Listener) parseMetadata(md mdata.Metadata) (err error) {
 	}
 
 	l.md.path = mdutil.GetString(md, path)
+	l.md.mptcp = mdutil.GetBool(md, "mptcp")
+
 	return
 }

listener/http2/listener.go

@@ -1,6 +1,7 @@
 package http2
 
 import (
+	"context"
 	"crypto/tls"
 	"net"
 	"net/http"
@@ -63,7 +64,12 @@ func (l *http2Listener) Init(md md.Metadata) (err error) {
 	if xnet.IsIPv4(l.options.Addr) {
 		network = "tcp4"
 	}
-	ln, err := net.Listen(network, l.options.Addr)
+	lc := net.ListenConfig{}
+	if l.md.mptcp {
+		lc.SetMultipathTCP(true)
+		l.logger.Debugf("mptcp enabled: %v", lc.MultipathTCP())
+	}
+	ln, err := lc.Listen(context.Background(), network, l.options.Addr)
 	if err != nil {
 		return err
 	}

listener/http2/metadata.go

@@ -11,6 +11,7 @@ const (
 
 type metadata struct {
 	backlog int
+	mptcp   bool
 }
 
 func (l *http2Listener) parseMetadata(md mdata.Metadata) (err error) {
@@ -22,5 +23,7 @@ func (l *http2Listener) parseMetadata(md mdata.Metadata) (err error) {
 	if l.md.backlog <= 0 {
 		l.md.backlog = defaultBacklog
 	}
+	l.md.mptcp = mdutil.GetBool(md, "mptcp")
+
 	return
 }