Begin implement protocol

proto/helloworld.proto

@@ -1,17 +0,0 @@
-syntax = "proto3";
-package helloworld;
-
-service Greeter {
-  // Our SayHello rpc accepts HelloRequests and returns HelloReplies
-  rpc SayHello (HelloRequest) returns (HelloReply);
-}
-
-message HelloRequest {
-  // Request message contains the name to be greeted
-  string name = 1;
-}
-
-message HelloReply {
-  // Reply contains the greeting message
-  string message = 1;
-}

proto/internal.proto

@@ -0,0 +1,44 @@
+syntax = "proto3";
+package internal;
+
+service Unix {
+  // Message send by the command gateway to the daemon
+  rpc authorize(AuthorizeRequest) returns (AuthorizeResponse);
+
+  // Message send when user quit shell
+  rpc terminate(TerminateRequest) returns (TerminateResponse);
+}
+
+message AuthorizeRequest {
+  // identifier of the project
+  string identifier = 1;
+  // ssh_keys from ssh agent
+  string public_ssh_keys = 2;
+  // command?
+}
+
+enum AuthorizationStatus {
+  AUTHORIZED = 0;
+  PERMISSION_DENIED = 1;
+}
+
+message AuthorizeResponse {
+  AuthorizationStatus status = 1;
+  string error_message = 2;
+  string session_uuid = 3;
+  string log_file = 4;
+}
+
+message TerminateRequest {
+  string session_uuid = 1;
+}
+
+enum TerminateStatus {
+  OK = 0;
+  FAILED = 1;
+}
+
+message TerminateResponse {
+    TerminateStatus status = 1;
+    string error_message = 2;
+}