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/*
Copyright (c) 2012-2013, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <fastd.h>
@CIPHER_DEFINITIONS@
typedef struct cipher_impl_list {
const char *name;
const fastd_cipher_t *const *impls;
} cipher_impl_list_t;
@CIPHER_IMPLS@
static const cipher_impl_list_t ciphers[] = { @CIPHER_LIST@
};
const fastd_cipher_t** fastd_cipher_config_alloc(void) {
const fastd_cipher_t **cipher_conf = calloc(array_size(ciphers), sizeof(const fastd_cipher_t*));
size_t i;
for (i = 0; i < array_size(ciphers); i++)
cipher_conf[i] = ciphers[i].impls[0];
return cipher_conf;
}
void fastd_cipher_config_free(const fastd_cipher_t **cipher_conf) {
free(cipher_conf);
}
bool fastd_cipher_config(const fastd_cipher_t **cipher_conf, const char *name, const char *impl) {
size_t i;
for (i = 0; i < array_size(ciphers); i++) {
if (!strcmp(ciphers[i].name, name)) {
size_t j;
for (j = 0; ciphers[i].impls[j]; j++) {
if (!strcmp(ciphers[i].impls[j]->name, impl)) {
cipher_conf[i] = ciphers[i].impls[j];
return true;
}
}
return false;
}
}
return false;
}
void fastd_cipher_init(fastd_context_t *ctx) {
ctx->cipher_contexts = calloc(array_size(ciphers), sizeof(fastd_cipher_context_t*));
size_t i;
for (i = 0; i < array_size(ciphers); i++)
ctx->cipher_contexts[i] = ctx->conf->ciphers[i]->initialize(ctx);
}
void fastd_cipher_free(fastd_context_t *ctx) {
size_t i;
for (i = 0; i < array_size(ciphers); i++)
ctx->conf->ciphers[i]->free(ctx, ctx->cipher_contexts[i]);
free(ctx->cipher_contexts);
}
bool fastd_cipher_get_by_name(fastd_context_t *ctx, const char *name, const fastd_cipher_t **cipher, fastd_cipher_context_t **cctx) {
size_t i;
for (i = 0; i < array_size(ciphers); i++) {
if (!strcmp(ciphers[i].name, name)) {
*cipher = ctx->conf->ciphers[i];
*cctx = ctx->cipher_contexts[i];
return true;
}
}
return false;
}
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