diff --git a/client/client.go b/client/client.go
index ad806b28..edf062f0 100644
--- a/client/client.go
+++ b/client/client.go
@@ -69,6 +69,7 @@ type QQClient struct {
 	rollbackSig      []byte
 	timeDiff         int64
 	sigInfo          *loginSigInfo
+	highwaySession   *highwaySessionInfo
 	fileStorageInfo  *jce.FileStoragePushFSSvcList
 	pwdFlag          bool
 
diff --git a/client/decoders.go b/client/decoders.go
index c39df5d8..f4dadd15 100644
--- a/client/decoders.go
+++ b/client/decoders.go
@@ -3,6 +3,7 @@ package client
 import (
 	"encoding/hex"
 	"fmt"
+	"github.com/Mrs4s/MiraiGo/client/pb/cmd0x6ff"
 	"net"
 	"strconv"
 	"strings"
@@ -249,6 +250,14 @@ func decodePushReqPacket(c *QQClient, _ uint16, payload []byte) (interface{}, er
 			list.ReadFrom(fmtPkt)
 			c.Debug("got file storage svc push.")
 			c.fileStorageInfo = list
+			rsp := cmd0x6ff.C501RspBody{}
+			if err := proto.Unmarshal(list.BigDataChannel.PbBuf, &rsp); err == nil && rsp.RspBody != nil {
+				c.highwaySession = &highwaySessionInfo{
+					SigSession: rsp.RspBody.SigSession,
+					SessionKey: rsp.RspBody.SessionKey,
+				}
+				c.Debug("highway session updated.")
+			}
 		}
 	}
 
diff --git a/client/entities.go b/client/entities.go
index 66c82bd3..fe8845f2 100644
--- a/client/entities.go
+++ b/client/entities.go
@@ -209,6 +209,11 @@ type (
 		Seq  int32
 		Msg  *message.GroupMessage
 	}
+
+	highwaySessionInfo struct {
+		SigSession []byte
+		SessionKey []byte
+	}
 )
 
 const (
diff --git a/client/pb/cmd0x6ff/subcmd0x501.pb.go b/client/pb/cmd0x6ff/subcmd0x501.pb.go
new file mode 100644
index 00000000..051f8a6c
--- /dev/null
+++ b/client/pb/cmd0x6ff/subcmd0x501.pb.go
@@ -0,0 +1,613 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.11.4
+// source: subcmd0x501.proto
+
+package cmd0x6ff
+
+import (
+	proto "github.com/golang/protobuf/proto"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
+type C501ReqBody struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ReqBody *SubCmd0X501ReqBody `protobuf:"bytes,1281,opt,name=ReqBody" json:"ReqBody,omitempty"`
+}
+
+func (x *C501ReqBody) Reset() {
+	*x = C501ReqBody{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_subcmd0x501_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *C501ReqBody) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*C501ReqBody) ProtoMessage() {}
+
+func (x *C501ReqBody) ProtoReflect() protoreflect.Message {
+	mi := &file_subcmd0x501_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use C501ReqBody.ProtoReflect.Descriptor instead.
+func (*C501ReqBody) Descriptor() ([]byte, []int) {
+	return file_subcmd0x501_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *C501ReqBody) GetReqBody() *SubCmd0X501ReqBody {
+	if x != nil {
+		return x.ReqBody
+	}
+	return nil
+}
+
+type C501RspBody struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	RspBody *SubCmd0X501RspBody `protobuf:"bytes,1281,opt,name=RspBody" json:"RspBody,omitempty"`
+}
+
+func (x *C501RspBody) Reset() {
+	*x = C501RspBody{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_subcmd0x501_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *C501RspBody) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*C501RspBody) ProtoMessage() {}
+
+func (x *C501RspBody) ProtoReflect() protoreflect.Message {
+	mi := &file_subcmd0x501_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use C501RspBody.ProtoReflect.Descriptor instead.
+func (*C501RspBody) Descriptor() ([]byte, []int) {
+	return file_subcmd0x501_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *C501RspBody) GetRspBody() *SubCmd0X501RspBody {
+	if x != nil {
+		return x.RspBody
+	}
+	return nil
+}
+
+type SubCmd0X501ReqBody struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Uin            *uint64  `protobuf:"varint,1,opt,name=uin" json:"uin,omitempty"`
+	IdcId          *uint32  `protobuf:"varint,2,opt,name=idcId" json:"idcId,omitempty"`
+	Appid          *uint32  `protobuf:"varint,3,opt,name=appid" json:"appid,omitempty"`
+	LoginSigType   *uint32  `protobuf:"varint,4,opt,name=loginSigType" json:"loginSigType,omitempty"`
+	LoginSigTicket []byte   `protobuf:"bytes,5,opt,name=loginSigTicket" json:"loginSigTicket,omitempty"`
+	RequestFlag    *uint32  `protobuf:"varint,6,opt,name=requestFlag" json:"requestFlag,omitempty"`
+	ServiceTypes   []uint32 `protobuf:"varint,7,rep,name=serviceTypes" json:"serviceTypes,omitempty"`
+	Bid            *uint32  `protobuf:"varint,8,opt,name=bid" json:"bid,omitempty"`
+}
+
+func (x *SubCmd0X501ReqBody) Reset() {
+	*x = SubCmd0X501ReqBody{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_subcmd0x501_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SubCmd0X501ReqBody) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SubCmd0X501ReqBody) ProtoMessage() {}
+
+func (x *SubCmd0X501ReqBody) ProtoReflect() protoreflect.Message {
+	mi := &file_subcmd0x501_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SubCmd0X501ReqBody.ProtoReflect.Descriptor instead.
+func (*SubCmd0X501ReqBody) Descriptor() ([]byte, []int) {
+	return file_subcmd0x501_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *SubCmd0X501ReqBody) GetUin() uint64 {
+	if x != nil && x.Uin != nil {
+		return *x.Uin
+	}
+	return 0
+}
+
+func (x *SubCmd0X501ReqBody) GetIdcId() uint32 {
+	if x != nil && x.IdcId != nil {
+		return *x.IdcId
+	}
+	return 0
+}
+
+func (x *SubCmd0X501ReqBody) GetAppid() uint32 {
+	if x != nil && x.Appid != nil {
+		return *x.Appid
+	}
+	return 0
+}
+
+func (x *SubCmd0X501ReqBody) GetLoginSigType() uint32 {
+	if x != nil && x.LoginSigType != nil {
+		return *x.LoginSigType
+	}
+	return 0
+}
+
+func (x *SubCmd0X501ReqBody) GetLoginSigTicket() []byte {
+	if x != nil {
+		return x.LoginSigTicket
+	}
+	return nil
+}
+
+func (x *SubCmd0X501ReqBody) GetRequestFlag() uint32 {
+	if x != nil && x.RequestFlag != nil {
+		return *x.RequestFlag
+	}
+	return 0
+}
+
+func (x *SubCmd0X501ReqBody) GetServiceTypes() []uint32 {
+	if x != nil {
+		return x.ServiceTypes
+	}
+	return nil
+}
+
+func (x *SubCmd0X501ReqBody) GetBid() uint32 {
+	if x != nil && x.Bid != nil {
+		return *x.Bid
+	}
+	return 0
+}
+
+type SubCmd0X501RspBody struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	SigSession   []byte      `protobuf:"bytes,1,opt,name=sigSession" json:"sigSession,omitempty"`
+	SessionKey   []byte      `protobuf:"bytes,2,opt,name=sessionKey" json:"sessionKey,omitempty"`
+	Addrs        []*SrvAddrs `protobuf:"bytes,3,rep,name=addrs" json:"addrs,omitempty"`
+	ShareType    *uint32     `protobuf:"varint,12,opt,name=shareType" json:"shareType,omitempty"`
+	ShareChannel *uint32     `protobuf:"varint,13,opt,name=shareChannel" json:"shareChannel,omitempty"`
+}
+
+func (x *SubCmd0X501RspBody) Reset() {
+	*x = SubCmd0X501RspBody{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_subcmd0x501_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SubCmd0X501RspBody) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SubCmd0X501RspBody) ProtoMessage() {}
+
+func (x *SubCmd0X501RspBody) ProtoReflect() protoreflect.Message {
+	mi := &file_subcmd0x501_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SubCmd0X501RspBody.ProtoReflect.Descriptor instead.
+func (*SubCmd0X501RspBody) Descriptor() ([]byte, []int) {
+	return file_subcmd0x501_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *SubCmd0X501RspBody) GetSigSession() []byte {
+	if x != nil {
+		return x.SigSession
+	}
+	return nil
+}
+
+func (x *SubCmd0X501RspBody) GetSessionKey() []byte {
+	if x != nil {
+		return x.SessionKey
+	}
+	return nil
+}
+
+func (x *SubCmd0X501RspBody) GetAddrs() []*SrvAddrs {
+	if x != nil {
+		return x.Addrs
+	}
+	return nil
+}
+
+func (x *SubCmd0X501RspBody) GetShareType() uint32 {
+	if x != nil && x.ShareType != nil {
+		return *x.ShareType
+	}
+	return 0
+}
+
+func (x *SubCmd0X501RspBody) GetShareChannel() uint32 {
+	if x != nil && x.ShareChannel != nil {
+		return *x.ShareChannel
+	}
+	return 0
+}
+
+type IpAddr struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Type *uint32 `protobuf:"varint,1,opt,name=type" json:"type,omitempty"`
+	Ip   *uint32 `protobuf:"fixed32,2,opt,name=ip" json:"ip,omitempty"`
+	Port *uint32 `protobuf:"varint,3,opt,name=port" json:"port,omitempty"`
+	Area *uint32 `protobuf:"varint,4,opt,name=area" json:"area,omitempty"`
+}
+
+func (x *IpAddr) Reset() {
+	*x = IpAddr{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_subcmd0x501_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *IpAddr) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*IpAddr) ProtoMessage() {}
+
+func (x *IpAddr) ProtoReflect() protoreflect.Message {
+	mi := &file_subcmd0x501_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use IpAddr.ProtoReflect.Descriptor instead.
+func (*IpAddr) Descriptor() ([]byte, []int) {
+	return file_subcmd0x501_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *IpAddr) GetType() uint32 {
+	if x != nil && x.Type != nil {
+		return *x.Type
+	}
+	return 0
+}
+
+func (x *IpAddr) GetIp() uint32 {
+	if x != nil && x.Ip != nil {
+		return *x.Ip
+	}
+	return 0
+}
+
+func (x *IpAddr) GetPort() uint32 {
+	if x != nil && x.Port != nil {
+		return *x.Port
+	}
+	return 0
+}
+
+func (x *IpAddr) GetArea() uint32 {
+	if x != nil && x.Area != nil {
+		return *x.Area
+	}
+	return 0
+}
+
+type SrvAddrs struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ServiceType *uint32   `protobuf:"varint,1,opt,name=serviceType" json:"serviceType,omitempty"`
+	Addrs       []*IpAddr `protobuf:"bytes,2,rep,name=addrs" json:"addrs,omitempty"`
+}
+
+func (x *SrvAddrs) Reset() {
+	*x = SrvAddrs{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_subcmd0x501_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SrvAddrs) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SrvAddrs) ProtoMessage() {}
+
+func (x *SrvAddrs) ProtoReflect() protoreflect.Message {
+	mi := &file_subcmd0x501_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SrvAddrs.ProtoReflect.Descriptor instead.
+func (*SrvAddrs) Descriptor() ([]byte, []int) {
+	return file_subcmd0x501_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *SrvAddrs) GetServiceType() uint32 {
+	if x != nil && x.ServiceType != nil {
+		return *x.ServiceType
+	}
+	return 0
+}
+
+func (x *SrvAddrs) GetAddrs() []*IpAddr {
+	if x != nil {
+		return x.Addrs
+	}
+	return nil
+}
+
+var File_subcmd0x501_proto protoreflect.FileDescriptor
+
+var file_subcmd0x501_proto_rawDesc = []byte{
+	0x0a, 0x11, 0x73, 0x75, 0x62, 0x63, 0x6d, 0x64, 0x30, 0x78, 0x35, 0x30, 0x31, 0x2e, 0x70, 0x72,
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+	0x65, 0x54, 0x79, 0x70, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x0b, 0x73, 0x65, 0x72,
+	0x76, 0x69, 0x63, 0x65, 0x54, 0x79, 0x70, 0x65, 0x12, 0x1d, 0x0a, 0x05, 0x61, 0x64, 0x64, 0x72,
+	0x73, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x07, 0x2e, 0x49, 0x70, 0x41, 0x64, 0x64, 0x72,
+	0x52, 0x05, 0x61, 0x64, 0x64, 0x72, 0x73, 0x42, 0x0c, 0x5a, 0x0a, 0x2e, 0x3b, 0x63, 0x6d, 0x64,
+	0x30, 0x78, 0x36, 0x66, 0x66,
+}
+
+var (
+	file_subcmd0x501_proto_rawDescOnce sync.Once
+	file_subcmd0x501_proto_rawDescData = file_subcmd0x501_proto_rawDesc
+)
+
+func file_subcmd0x501_proto_rawDescGZIP() []byte {
+	file_subcmd0x501_proto_rawDescOnce.Do(func() {
+		file_subcmd0x501_proto_rawDescData = protoimpl.X.CompressGZIP(file_subcmd0x501_proto_rawDescData)
+	})
+	return file_subcmd0x501_proto_rawDescData
+}
+
+var file_subcmd0x501_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
+var file_subcmd0x501_proto_goTypes = []interface{}{
+	(*C501ReqBody)(nil),        // 0: C501ReqBody
+	(*C501RspBody)(nil),        // 1: C501RspBody
+	(*SubCmd0X501ReqBody)(nil), // 2: SubCmd0x501ReqBody
+	(*SubCmd0X501RspBody)(nil), // 3: SubCmd0x501RspBody
+	(*IpAddr)(nil),             // 4: IpAddr
+	(*SrvAddrs)(nil),           // 5: SrvAddrs
+}
+var file_subcmd0x501_proto_depIdxs = []int32{
+	2, // 0: C501ReqBody.ReqBody:type_name -> SubCmd0x501ReqBody
+	3, // 1: C501RspBody.RspBody:type_name -> SubCmd0x501RspBody
+	5, // 2: SubCmd0x501RspBody.addrs:type_name -> SrvAddrs
+	4, // 3: SrvAddrs.addrs:type_name -> IpAddr
+	4, // [4:4] is the sub-list for method output_type
+	4, // [4:4] is the sub-list for method input_type
+	4, // [4:4] is the sub-list for extension type_name
+	4, // [4:4] is the sub-list for extension extendee
+	0, // [0:4] is the sub-list for field type_name
+}
+
+func init() { file_subcmd0x501_proto_init() }
+func file_subcmd0x501_proto_init() {
+	if File_subcmd0x501_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_subcmd0x501_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*C501ReqBody); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_subcmd0x501_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*C501RspBody); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_subcmd0x501_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SubCmd0X501ReqBody); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_subcmd0x501_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SubCmd0X501RspBody); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_subcmd0x501_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*IpAddr); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_subcmd0x501_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SrvAddrs); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_subcmd0x501_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   6,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_subcmd0x501_proto_goTypes,
+		DependencyIndexes: file_subcmd0x501_proto_depIdxs,
+		MessageInfos:      file_subcmd0x501_proto_msgTypes,
+	}.Build()
+	File_subcmd0x501_proto = out.File
+	file_subcmd0x501_proto_rawDesc = nil
+	file_subcmd0x501_proto_goTypes = nil
+	file_subcmd0x501_proto_depIdxs = nil
+}
diff --git a/client/pb/cmd0x6ff/subcmd0x501.proto b/client/pb/cmd0x6ff/subcmd0x501.proto
new file mode 100644
index 00000000..adacb433
--- /dev/null
+++ b/client/pb/cmd0x6ff/subcmd0x501.proto
@@ -0,0 +1,37 @@
+syntax = "proto2";
+option go_package = ".;cmd0x6ff";
+
+message C501ReqBody {
+  optional SubCmd0x501ReqBody ReqBody = 1281;
+}
+message C501RspBody {
+  optional SubCmd0x501RspBody RspBody = 1281;
+}
+message SubCmd0x501ReqBody {
+  optional uint64 uin = 1;
+  optional uint32 idcId = 2;
+  optional uint32 appid = 3;
+  optional uint32 loginSigType = 4;
+  optional bytes loginSigTicket = 5;
+  optional uint32 requestFlag = 6;
+  repeated uint32 serviceTypes = 7;
+  optional uint32 bid = 8;
+}
+message SubCmd0x501RspBody {
+  optional bytes sigSession = 1;
+  optional bytes sessionKey = 2;
+  repeated SrvAddrs addrs = 3;
+}
+
+message SrvAddrs {
+  optional uint32 serviceType = 1;
+  repeated IpAddr addrs = 2;
+}
+
+message IpAddr {
+  optional uint32 type = 1;
+  optional fixed32 ip = 2;
+  optional uint32 port = 3;
+  optional uint32 area = 4;
+}
+