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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 <src/config.h>
#include <src/crypto.h>
@MAC_DEFINITIONS@
typedef struct fastd_mac_impl {
const char *name;
const fastd_mac_t *impl;
} fastd_mac_impl_t;
typedef struct mac_entry {
const char *name;
const fastd_mac_info_t *info;
const fastd_mac_impl_t *impls;
} mac_entry_t;
@MAC_IMPLS@
static const mac_entry_t macs[] = { @MAC_LIST@
};
const fastd_mac_t** fastd_mac_config_alloc(void) {
const fastd_mac_t **mac_conf = calloc(array_size(macs), sizeof(const fastd_mac_t*));
size_t i, j;
for (i = 0; i < array_size(macs); i++) {
for (j = 0; macs[i].impls[j].impl; j++) {
if (macs[i].impls[j].impl->available())
break;
}
mac_conf[i] = macs[i].impls[j].impl;
}
return mac_conf;
}
void fastd_mac_config_free(const fastd_mac_t **mac_conf) {
free(mac_conf);
}
bool fastd_mac_config(const fastd_mac_t **mac_conf, const char *name, const char *impl) {
size_t i;
for (i = 0; i < array_size(macs); i++) {
if (!strcmp(macs[i].name, name)) {
size_t j;
for (j = 0; macs[i].impls[j].impl; j++) {
if (!strcmp(macs[i].impls[j].name, impl)) {
if (!macs[i].impls[j].impl->available())
return false;
mac_conf[i] = macs[i].impls[j].impl;
return true;
}
}
return false;
}
}
return false;
}
void fastd_mac_init(fastd_context_t *ctx) {
ctx->mac_contexts = calloc(array_size(macs), sizeof(fastd_mac_context_t*));
size_t i;
for (i = 0; i < array_size(macs); i++) {
if (ctx->conf->macs[i])
ctx->mac_contexts[i] = ctx->conf->macs[i]->initialize(ctx);
}
}
void fastd_mac_free(fastd_context_t *ctx) {
size_t i;
for (i = 0; i < array_size(macs); i++)
ctx->conf->macs[i]->free(ctx, ctx->mac_contexts[i]);
free(ctx->mac_contexts);
}
bool fastd_mac_is_available(const char *name) {
size_t i, j;
for (i = 0; i < array_size(macs); i++) {
if (strcmp(macs[i].name, name))
continue;
for (j = 0; macs[i].impls[j].impl; j++) {
if (macs[i].impls[j].impl->available())
return true;
}
break;
}
return false;
}
const fastd_mac_info_t* fastd_mac_info_get_by_name(const char *name) {
size_t i, j;
for (i = 0; i < array_size(macs); i++) {
if (!strcmp(macs[i].name, name))
return macs[i].info;
}
return NULL;
}
const fastd_mac_t* fastd_mac_get_by_name(fastd_context_t *ctx, const char *name, const fastd_mac_info_t **info, const fastd_mac_context_t **cctx) {
size_t i;
for (i = 0; i < array_size(macs); i++) {
if (!strcmp(macs[i].name, name)) {
if (info)
*info = macs[i].info;
if (cctx)
*cctx = ctx->mac_contexts[i];
return ctx->conf->macs[i];
}
}
return NULL;
}
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