src/libstrongswan/plugins/sha1/sha1_plugin.c

   1 /*
   2  * Copyright (C) 2008 Martin Willi
   3  * Hochschule fuer Technik Rapperswil
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  *
  15  * $Id$
  16  */
  17
  18 #include "sha1_plugin.h"
  19
  20 #include <library.h>
  21 #include "sha1_hasher.h"
  22 #include "sha1_prf.h"
  23
  24 typedef struct private_sha1_plugin_t private_sha1_plugin_t;
  25
  26 /**
  27  * private data of sha1_plugin
  28  */
  29 struct private_sha1_plugin_t {
  30
  31         /**
  32          * public functions
  33          */
  34         sha1_plugin_t public;
  35 };
  36
  37 /**
  38  * Implementation of sha1_plugin_t.destroy
  39  */
  40 static void destroy(private_sha1_plugin_t *this)
  41 {
  42         lib->crypto->remove_hasher(lib->crypto,
  43                                                            (hasher_constructor_t)sha1_hasher_create);
  44         lib->crypto->remove_prf(lib->crypto,
  45                                                            (prf_constructor_t)sha1_prf_create);
  46         free(this);
  47 }
  48
  49 /*
  50  * see header file
  51  */
  52 plugin_t *plugin_create()
  53 {
  54         private_sha1_plugin_t *this = malloc_thing(private_sha1_plugin_t);
  55
  56         this->public.plugin.destroy = (void(*)(plugin_t*))destroy;
  57
  58         lib->crypto->add_hasher(lib->crypto, HASH_SHA1,
  59                                                         (hasher_constructor_t)sha1_hasher_create);
  60         lib->crypto->add_prf(lib->crypto, PRF_KEYED_SHA1,
  61                                                         (prf_constructor_t)sha1_prf_create);
  62
  63         return &this->public.plugin;
  64 }
  65