Return to iv_gen_null.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / strongswan / src / libstrongswan / crypto / iv

Strongswan

    1: /*
    2:  * Copyright (C) 2015 Tobias Brunner
    3:  * HSR 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: 
   16: #include "iv_gen_null.h"
   17: 
   18: typedef struct private_iv_gen_t private_iv_gen_t;
   19: 
   20: /**
   21:  * Private data of an iv_gen_t object.
   22:  */
   23: struct private_iv_gen_t {
   24: 
   25: 	/**
   26: 	 * Public iv_gen_t interface.
   27: 	 */
   28: 	iv_gen_t public;
   29: };
   30: 
   31: METHOD(iv_gen_t, get_iv, bool,
   32: 	private_iv_gen_t *this, uint64_t seq, size_t size, uint8_t *buffer)
   33: {
   34: 	return size == 0;
   35: }
   36: 
   37: METHOD(iv_gen_t, allocate_iv, bool,
   38: 	private_iv_gen_t *this, uint64_t seq, size_t size, chunk_t *chunk)
   39: {
   40: 	*chunk = chunk_empty;
   41: 	return size == 0;
   42: }
   43: 
   44: METHOD(iv_gen_t, destroy, void,
   45: 	private_iv_gen_t *this)
   46: {
   47: 	free(this);
   48: }
   49: 
   50: iv_gen_t *iv_gen_null_create()
   51: {
   52: 	private_iv_gen_t *this;
   53: 
   54: 	INIT(this,
   55: 		.public = {
   56: 			.get_iv = _get_iv,
   57: 			.allocate_iv = _allocate_iv,
   58: 			.destroy = _destroy,
   59: 		},
   60: 	);
   61: 
   62: 	return &this->public;
   63: }