ceph/src/auth/AuthSessionHandler.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2004-2009 Sage Weil <sage@newdream.net>
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15
  16 #ifndef CEPH_AUTHSESSIONHANDLER_H
  17 #define CEPH_AUTHSESSIONHANDLER_H
  18
  19 #include "include/common_fwd.h"
  20 #include "include/types.h"
  21 #include "Auth.h"
  22
  23 #define SESSION_SIGNATURE_FAILURE -1
  24
  25 // Defines the security applied to ongoing messages in a session, once the session is established. PLR
  26
  27 class Message;
  28
  29 struct AuthSessionHandler {
  30   virtual ~AuthSessionHandler() = default;
  31   virtual int sign_message(Message *message) = 0;
  32   virtual int check_message_signature(Message *message) = 0;
  33 };
  34
  35 struct DummyAuthSessionHandler : AuthSessionHandler {
  36   int sign_message(Message*) final {
  37     return 0;
  38   }
  39   int check_message_signature(Message*) final {
  40     return 0;
  41   }
  42 };
  43
  44 struct DecryptionError : public std::exception {};
  45
  46 extern AuthSessionHandler *get_auth_session_handler(
  47   CephContext *cct, int protocol,
  48   const CryptoKey& key,
  49   uint64_t features);
  50
  51 #endif