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#include <stdio.h>
#include <string.h>
#include <stddef.h>
#include <sys/types.h>
#include <freeswan.h>
#include "constants.h"
#include "defs.h"
#include "log.h"
#include "libsha2/sha2.h"
#include "alg_info.h"
#include "ike_alg.h"
#define SHA2_256_DIGEST_SIZE (256/BITS_PER_BYTE)
#define SHA2_512_DIGEST_SIZE (512/BITS_PER_BYTE)
static void sha256_hash_final(u_char *hash, sha256_context *ctx)
{
sha256_final(ctx);
memcpy(hash, &ctx->sha_out[0], SHA2_256_DIGEST_SIZE);
}
static void sha512_hash_final(u_char *hash, sha512_context *ctx)
{
sha512_final(ctx);
memcpy(hash, &ctx->sha_out[0], SHA2_512_DIGEST_SIZE);
}
struct hash_desc hash_desc_sha2_256 = {
algo_type: IKE_ALG_HASH,
algo_id: OAKLEY_SHA2_256,
algo_next: NULL,
hash_ctx_size: sizeof(sha256_context),
hash_init: (void (*)(void *))sha256_init,
hash_update: (void (*)(void *, const u_char *, size_t ))sha256_write,
hash_final:(void (*)(u_char *, void *))sha256_hash_final,
hash_digest_size: SHA2_256_DIGEST_SIZE,
};
struct hash_desc hash_desc_sha2_512 = {
algo_type: IKE_ALG_HASH,
algo_id: OAKLEY_SHA2_512,
algo_next: NULL,
hash_ctx_size: sizeof(sha512_context),
hash_init: (void (*)(void *))sha512_init,
hash_update: (void (*)(void *, const u_char *, size_t ))sha512_write,
hash_final:(void (*)(u_char *, void *))sha512_hash_final,
hash_digest_size: SHA2_512_DIGEST_SIZE,
};
int ike_alg_sha2_init(void);
int
ike_alg_sha2_init(void)
{
int ret;
ret = ike_alg_register_hash(&hash_desc_sha2_256);
if (ret)
goto out;
ret = ike_alg_register_hash(&hash_desc_sha2_512);
out:
return ret;
}
/*
IKE_ALG_INIT_NAME: ike_alg_sha2_init
*/
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