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Annotation of embedaddon/strongswan/src/libstrongswan/crypto/iv/iv_gen_null.c, revision 1.1.1.1

1.1       misho       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: }