diff --git a/common/net/network.pb.go b/common/net/network.pb.go
index 709541ad1..47d205bbd 100644
--- a/common/net/network.pb.go
+++ b/common/net/network.pb.go
@@ -68,19 +68,20 @@ func init() {
 func init() { proto.RegisterFile("v2ray.com/core/common/net/network.proto", fileDescriptor2) }
 
 var fileDescriptor2 = []byte{
-	// 221 bytes of a gzipped FileDescriptorProto
+	// 225 bytes of a gzipped FileDescriptorProto
 	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0x52, 0x2f, 0x33, 0x2a, 0x4a,
 	0xac, 0xd4, 0x4b, 0xce, 0xcf, 0xd5, 0x4f, 0xce, 0x2f, 0x4a, 0xd5, 0x4f, 0xce, 0xcf, 0xcd, 0xcd,
 	0xcf, 0xd3, 0xcf, 0x4b, 0x2d, 0x01, 0xe1, 0xf2, 0xfc, 0xa2, 0x6c, 0xbd, 0x82, 0xa2, 0xfc, 0x92,
 	0x7c, 0x21, 0x51, 0x98, 0xc2, 0xa2, 0x54, 0x3d, 0x88, 0x22, 0xbd, 0xbc, 0xd4, 0x12, 0x25, 0x77,
 	0x2e, 0x6e, 0x3f, 0x88, 0x3a, 0x9f, 0xcc, 0xe2, 0x12, 0x21, 0x0b, 0x2e, 0x76, 0xa8, 0x36, 0x09,
 	0x46, 0x05, 0x66, 0x0d, 0x3e, 0x23, 0x39, 0x3d, 0xac, 0xfa, 0xf4, 0xa0, 0x9a, 0x82, 0x60, 0xca,
-	0xb5, 0x7c, 0xb8, 0xd8, 0xa1, 0x62, 0x42, 0xdc, 0x5c, 0xec, 0xa1, 0x79, 0xd9, 0x79, 0xf9, 0xe5,
-	0x79, 0x02, 0x0c, 0x42, 0x5c, 0x5c, 0x6c, 0x41, 0x89, 0xe5, 0x21, 0xce, 0x01, 0x02, 0x8c, 0x42,
-	0xec, 0x5c, 0xcc, 0x20, 0x06, 0x13, 0x88, 0x11, 0xea, 0x12, 0x20, 0xc0, 0x0c, 0x62, 0x78, 0x3b,
-	0x07, 0x08, 0xb0, 0x08, 0xf1, 0x72, 0x71, 0x86, 0xa7, 0x26, 0x05, 0xe7, 0x27, 0x67, 0xa7, 0x96,
-	0x08, 0xb0, 0x3a, 0xb9, 0x71, 0x49, 0x26, 0xe7, 0xe7, 0x62, 0xb7, 0xdb, 0x89, 0x07, 0x6a, 0x51,
-	0x00, 0xc8, 0x63, 0x51, 0xcc, 0x79, 0xa9, 0x25, 0xab, 0x98, 0x44, 0xc3, 0x8c, 0x82, 0x12, 0x2b,
-	0xf5, 0x9c, 0x41, 0x4a, 0x9d, 0x21, 0x4a, 0xfd, 0x52, 0x4b, 0x92, 0xd8, 0xc0, 0x9e, 0x37, 0x06,
-	0x04, 0x00, 0x00, 0xff, 0xff, 0x18, 0xab, 0xfe, 0x3a, 0x27, 0x01, 0x00, 0x00,
+	0xb5, 0x02, 0xb8, 0xd8, 0xa1, 0x62, 0x42, 0xdc, 0x5c, 0xec, 0xa1, 0x79, 0xd9, 0x79, 0xf9, 0xe5,
+	0x79, 0x02, 0x0c, 0x42, 0x7c, 0x5c, 0x6c, 0x41, 0x89, 0xe5, 0x21, 0xce, 0x01, 0x02, 0x8c, 0x52,
+	0x4c, 0x1c, 0x8c, 0x42, 0xec, 0x5c, 0xcc, 0x20, 0x0e, 0x13, 0x88, 0x11, 0xea, 0x12, 0x20, 0xc0,
+	0x0c, 0x62, 0x78, 0x3b, 0x07, 0x08, 0xb0, 0x08, 0xf1, 0x72, 0x71, 0x86, 0xa7, 0x26, 0x05, 0xe7,
+	0x27, 0x67, 0xa7, 0x96, 0x08, 0xb0, 0x3a, 0xb9, 0x71, 0x49, 0x26, 0xe7, 0xe7, 0x62, 0xb7, 0xdf,
+	0x89, 0x07, 0x6a, 0x59, 0x00, 0xc8, 0x73, 0x51, 0xcc, 0x79, 0xa9, 0x25, 0xab, 0x98, 0x44, 0xc3,
+	0x8c, 0x82, 0x12, 0x2b, 0xf5, 0x9c, 0x41, 0x4a, 0x9d, 0x21, 0x4a, 0xfd, 0x52, 0x4b, 0x92, 0xd8,
+	0xc0, 0x01, 0x60, 0x0c, 0x08, 0x00, 0x00, 0xff, 0xff, 0x45, 0xf9, 0x86, 0x63, 0x2b, 0x01, 0x00,
+	0x00,
 }
diff --git a/tools/genproto/main.go b/tools/genproto/main.go
index 9d5fe1047..2cabcef37 100644
--- a/tools/genproto/main.go
+++ b/tools/genproto/main.go
@@ -19,12 +19,19 @@ var protocMap = map[string]string{
 	"linux":   filepath.Join(os.Getenv("GOPATH"), "src", "v2ray.com", "core", ".dev", "protoc", "linux", "protoc"),
 }
 
+func sdkPath(reporoot, lang string) string {
+	path := filepath.Join(reporoot, ".dev", "sdk", lang)
+	os.MkdirAll(path, os.ModePerm)
+	return path
+}
+
 func main() {
 	protofiles := make(map[string][]string)
 	protoc := protocMap[runtime.GOOS]
 	gosrc := filepath.Join(os.Getenv("GOPATH"), "src")
+	reporoot := filepath.Join(gosrc, "v2ray.com", "core")
 
-	filepath.Walk(filepath.Join(gosrc, "v2ray.com", "core"), func(path string, info os.FileInfo, err error) error {
+	filepath.Walk(reporoot, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			fmt.Println(err)
 			return err
@@ -57,7 +64,7 @@ func main() {
 		}
 	}
 
-	err := filepath.Walk(filepath.Join(gosrc, "v2ray.com", "core"), func(path string, info os.FileInfo, err error) error {
+	err := filepath.Walk(reporoot, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			fmt.Println(err)
 			return err
diff --git a/tools/geoip/geoip.pb.go b/tools/geoip/geoip.pb.go
index d9f46fb30..4da57fff8 100644
--- a/tools/geoip/geoip.pb.go
+++ b/tools/geoip/geoip.pb.go
@@ -39,7 +39,7 @@ func init() {
 func init() { proto.RegisterFile("v2ray.com/core/tools/geoip/geoip.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
-	// 155 bytes of a gzipped FileDescriptorProto
+	// 189 bytes of a gzipped FileDescriptorProto
 	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0x52, 0x2b, 0x33, 0x2a, 0x4a,
 	0xac, 0xd4, 0x4b, 0xce, 0xcf, 0xd5, 0x4f, 0xce, 0x2f, 0x4a, 0xd5, 0x2f, 0xc9, 0xcf, 0xcf, 0x29,
 	0xd6, 0x4f, 0x4f, 0xcd, 0xcf, 0x2c, 0x80, 0x90, 0x7a, 0x05, 0x45, 0xf9, 0x25, 0xf9, 0x42, 0x62,
@@ -48,6 +48,8 @@ var fileDescriptor0 = []byte{
 	0x4a, 0xf6, 0x5c, 0x7c, 0xce, 0xf9, 0xa5, 0x79, 0x25, 0x45, 0x95, 0x9e, 0x01, 0x41, 0x89, 0x79,
 	0xe9, 0xa9, 0x42, 0xba, 0x5c, 0xcc, 0x99, 0x05, 0xc5, 0x12, 0x8c, 0x0a, 0xcc, 0x1a, 0xdc, 0x46,
 	0xd2, 0x7a, 0x48, 0xe6, 0x27, 0x16, 0x14, 0xe8, 0x41, 0xcc, 0xd0, 0x73, 0xf6, 0x74, 0x09, 0x0a,
-	0x02, 0xa9, 0x73, 0x62, 0x8f, 0x62, 0x05, 0xdb, 0x98, 0xc4, 0x06, 0x36, 0xd0, 0x18, 0x10, 0x00,
-	0x00, 0xff, 0xff, 0xf8, 0x02, 0xe8, 0xc0, 0xba, 0x00, 0x00, 0x00,
+	0x02, 0xa9, 0x73, 0xf2, 0xe0, 0x92, 0x4a, 0xce, 0xcf, 0xd5, 0xc3, 0xee, 0x0c, 0x27, 0x2e, 0x77,
+	0x10, 0x15, 0x00, 0xb2, 0x2a, 0x8a, 0x15, 0x2c, 0xb4, 0x8a, 0x49, 0x2c, 0xcc, 0x28, 0x28, 0xb1,
+	0x52, 0xcf, 0x19, 0xa4, 0x36, 0x04, 0xac, 0x16, 0xac, 0x28, 0x89, 0x0d, 0xec, 0x22, 0x63, 0x40,
+	0x00, 0x00, 0x00, 0xff, 0xff, 0xa7, 0x42, 0x52, 0x54, 0xfb, 0x00, 0x00, 0x00,
 }
diff --git a/tools/geoip/geoip.proto b/tools/geoip/geoip.proto
index 3b92e9e3a..499171e4b 100644
--- a/tools/geoip/geoip.proto
+++ b/tools/geoip/geoip.proto
@@ -1,7 +1,10 @@
 syntax = "proto3";
 
 package v2ray.core.tools.geoip;
+option csharp_namespace = "V2Ray.Core.Tools.Geoip";
 option go_package = "geoip";
+option java_package = "com.v2ray.core.tools.geoip";
+option java_outer_classname = "GeoipProto";
 
 import "v2ray.com/core/app/router/config.proto";