cdsa/cssm/modload_plugin.cpp

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 //
  20 // modload_plugin - loader interface for dynamically loaded plugin modules
  21 //
  22 #include <Security/modload_plugin.h>
  23
  24
  25 namespace Security {
  26
  27
  28 //
  29 // During construction, a LoadablePlugin loads itself into memory and locates
  30 // the canonical (CDSA defined) four entrypoints. If anything fails, we throw.
  31 //
  32 LoadablePlugin::LoadablePlugin(const char *path) : LoadableBundle(path)
  33 {
  34     load();
  35     findFunction(fLoad, "CSSM_SPI_ModuleLoad");
  36     findFunction(fAttach, "CSSM_SPI_ModuleAttach");
  37     findFunction(fDetach, "CSSM_SPI_ModuleDetach");
  38     findFunction(fUnload, "CSSM_SPI_ModuleUnload");
  39 }
  40
  41
  42 //
  43 // Loading and unloading devolves directly onto LoadableBundle
  44 //
  45 void LoadablePlugin::load()
  46 {
  47     CodeSigning::LoadableBundle::load();
  48 }
  49
  50 void LoadablePlugin::unload()
  51 {
  52     CodeSigning::LoadableBundle::unload();
  53 }
  54
  55 bool LoadablePlugin::isLoaded() const
  56 {
  57     return CodeSigning::LoadableBundle::isLoaded();
  58 }
  59
  60
  61 }       // end namespace Security