feature: MITM

tunnel/tunnel.go

@@ -30,6 +30,7 @@ var (
 	udpQueue       = make(chan C.PacketAdapter, 200)
 	natTable       = nat.New()
 	rules          []C.Rule
+	rewrites       C.RewriteRule
 	listeners      = make(map[string]C.InboundListener)
 	subRules       map[string][]C.Rule
 	proxies        = make(map[string]C.Proxy)
@@ -179,6 +180,18 @@ func isHandle(t C.Type) bool {
 	return status == Running || (status == Inner && t == C.INNER)
 }
 
+// Rewrites return all rewrites
+func Rewrites() C.RewriteRule {
+	return rewrites
+}
+
+// UpdateRewrites handle update rewrites
+func UpdateRewrites(rules C.RewriteRule) {
+	configMux.Lock()
+	rewrites = rules
+	configMux.Unlock()
+}
+
 // processUDP starts a loop to handle udp packet
 func processUDP() {
 	queue := udpQueue
@@ -433,8 +446,9 @@ func handleTCPConn(connCtx C.ConnContext) {
 		return
 	}
 
+	isMitmProxy := metadata.Type == C.MITM
 	dialMetadata := metadata
-	if len(metadata.Host) > 0 {
+	if len(metadata.Host) > 0 && !isMitmProxy {
 		if node, ok := resolver.DefaultHosts.Search(metadata.Host, false); ok {
 			if dstIp, _ := node.RandIP(); !FakeIPRange().Contains(dstIp) {
 				dialMetadata.DstIP = dstIp