diff --git a/server/tools/protobuild/cs_msgid.proto b/server/tools/protobuild/cs_msgid.proto
index 0595eb5..b67751b 100644
--- a/server/tools/protobuild/cs_msgid.proto
+++ b/server/tools/protobuild/cs_msgid.proto
@@ -1,14 +1,7 @@
-package ss;
+package cs;
 
 //消息id定义
-enum SSMessageId_e
+enum CMessageId_e
 {
-    _SS_Ping = 8;
-    _SS_Pong = 9;
-
-    _SS_WSP_SocketDisconnect = 10;
-    _SS_WSP_RequestTargetServer = 11;
-    _SS_MS_ResponseTargetServer = 12;
-    _SS_ForceCloseSocket = 13;
-
+    _CMAuthSession = 0x1ED;
 }
diff --git a/server/tools/protobuild/cs_proto.proto b/server/tools/protobuild/cs_proto.proto
index be04905..9648047 100755
--- a/server/tools/protobuild/cs_proto.proto
+++ b/server/tools/protobuild/cs_proto.proto
@@ -1,35 +1,16 @@
-package ss;
+package cs;
 
-message SS_Ping
-{
+import "google/protobuf/descriptor.proto";
 
+extend google.protobuf.FieldOptions {
+    optional int32 fixed_len = 51234 [default = 0];
 }
 
-message SS_Pong
-{
-
-}
-
-message SS_WSP_SocketDisconnect
-{
-}
-
-message SS_WSP_RequestTargetServer
-{
-    optional int64 context_id = 1;
-    optional string account_id = 2;
-    optional string team_id = 3;
-}
-
-message SS_MS_ResponseTargetServer
-{
-    optional int32 error_code = 1;
-    optional string error_msg = 2;
-    optional int64 context_id = 3;
-    optional string host = 4;
-    optional int32 port = 5;
-}
-
-message SS_ForceCloseSocket
+message CMAuthSession
 {
+    optional uint32 built_number_client = 1;
+    optional uint32 unk2 = 2;
+    optional string account = 3;
+    optional uint32 client_seed = 4;
+    optional bytes digest = 5 [(fixed_len) = 20];
 }