/* 
 *   Copyright 2014-2021 The GmSSL Project Authors. All Rights Reserved.
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

#include <openssl/err.h>
#include <openssl/gmskf.h>
#include "internal/skf_int.h"
#include "../../e_os.h"
#include "skf_wisec.h"

typedef struct {
	ULONG std_id;
	ULONG vendor_id;
} SKF_ALGOR_PAIR;

static SKF_ALGOR_PAIR wisec_ciphers[] = {
	{ SGD_SM1, WISEC_SM1 },
	{ SGD_SM1_ECB, WISEC_SM1_ECB },
	{ SGD_SM1_CBC, WISEC_SM1_CBC },
	{ SGD_SM1_CFB, WISEC_SM1_CFB },
	{ SGD_SM1_OFB, WISEC_SM1_OFB },
	{ SGD_SM1_MAC, WISEC_SM1_MAC },
	{ SGD_SM4, WISEC_SM4 },
	{ SGD_SM4_ECB, WISEC_SM4_ECB },
	{ SGD_SM4_CBC, WISEC_SM4_CBC },
	{ SGD_SM4_CFB, WISEC_SM4_CFB },
	{ SGD_SM4_OFB, WISEC_SM4_OFB },
	{ SGD_SM4_MAC, WISEC_SM4_MAC },
	{ SGD_SSF33, WISEC_SSF33 },
	{ SGD_SSF33_ECB, WISEC_SSF33_ECB },
	{ SGD_SSF33_CBC, WISEC_SSF33_CBC },
	{ SGD_SSF33_CFB, WISEC_SSF33_CFB },
	{ SGD_SSF33_OFB, WISEC_SSF33_OFB },
	{ SGD_SSF33_MAC, WISEC_SSF33_MAC },
};

static ULONG wisec_get_cipher_algor(ULONG vendor_id)
{
	size_t i;
	for (i = 0; i < OSSL_NELEM(wisec_ciphers); i++) {
		if (vendor_id == wisec_ciphers[i].vendor_id) {
			return wisec_ciphers[i].std_id;
		}
	}
	return 0;
}

static ULONG wisec_get_cipher_cap(ULONG vendor_cap)
{
	ULONG std_cap = 0;
	size_t i;
	for (i = 0; i < OSSL_NELEM(wisec_ciphers); i++) {
		if (vendor_cap & wisec_ciphers[i].vendor_id) {
			std_cap |= wisec_ciphers[i].std_id;
		}
	}
	return std_cap;
}

static SKF_ALGOR_PAIR wisec_digests[] = {
	{ SGD_SM3, WISEC_SM3 },
	{ SGD_SHA1, WISEC_SHA1 },
	{ SGD_SHA256, WISEC_SHA256 },
};

static ULONG wisec_get_digest_algor(ULONG vendor_id)
{
	size_t i;
	for (i = 0; i < OSSL_NELEM(wisec_digests); i++) {
		if (vendor_id == wisec_digests[i].vendor_id) {
			return wisec_digests[i].std_id;
		}
	}
	return 0;
}

static ULONG wisec_get_digest_cap(ULONG vendor_cap)
{
	ULONG std_cap = 0;
	size_t i;
	for (i = 0; i < OSSL_NELEM(wisec_digests); i++) {
		if (vendor_cap & wisec_digests[i].vendor_id) {
			std_cap |= wisec_digests[i].std_id;
		}
	}
	return std_cap;
}

static SKF_ALGOR_PAIR wisec_pkeys[] = {
	{ SGD_RSA, WISEC_RSA },
	{ SGD_RSA_SIGN, WISEC_RSA_SIGN },
	{ SGD_RSA_ENC, WISEC_RSA_ENC },
	{ SGD_SM2, WISEC_SM2 },
	{ SGD_SM2_1, WISEC_SM2_1 },
	{ SGD_SM2_2, WISEC_SM2_2 },
	{ SGD_SM2_3, WISEC_SM2_3 },
};

static ULONG wisec_get_pkey_algor(ULONG vendor_id)
{
	size_t i;
	for (i = 0; i < OSSL_NELEM(wisec_pkeys); i++) {
		if (vendor_id == wisec_pkeys[i].vendor_id) {
			return wisec_pkeys[i].std_id;
		}
	}
	return 0;
}

static ULONG wisec_get_pkey_cap(ULONG vendor_cap)
{
	ULONG std_cap = 0;
	size_t i;
	for (i = 0; i < OSSL_NELEM(wisec_pkeys); i++) {
		if (vendor_cap & wisec_pkeys[i].vendor_id) {
			std_cap |= wisec_pkeys[i].std_id;
		}
	}
	return std_cap;
}

static SKF_ERR_REASON wisec_errors[] = {
	{ WISEC_AUTH_BLOCKED, SKF_R_WISEC_AUTH_BLOCKED },
	{ WISEC_CERTNOUSAGEERR, SKF_R_WISEC_CERTNOUSAGEERR },
	{ WISEC_INVALIDCONTAINERERR, SKF_R_WISEC_INVALIDCONTAINERERR },
	{ WISEC_CONTAINER_NOT_EXISTS, SKF_R_WISEC_CONTAINER_NOT_EXISTS },
	{ WISEC_CONTAINER_EXISTS, SKF_R_WISEC_CONTAINER_EXISTS },
	{ WISEC_CERTUSAGEERR, SKF_R_WISEC_CERTUSAGEERR },
	{ WISEC_KEYNOUSAGEERR, SKF_R_WISEC_KEYNOUSAGEERR },
	{ WISEC_FILEATTRIBUTEERR, SKF_R_WISEC_FILEATTRIBUTEERR },
	{ WISEC_DEVNOAUTH, SKF_R_WISEC_DEVNOAUTH },
};

static unsigned long wisec_get_error_reason(ULONG err)
{
	size_t i = 0;
	for (i = 0; i < OSSL_NELEM(wisec_errors); i++) {
		if (err == wisec_errors[i].err) {
			return wisec_errors[i].reason;
		}
	}
	return 0;
}

SKF_VENDOR skf_wisec = {
	"wisec",
	16,
	wisec_get_cipher_algor,
	wisec_get_cipher_cap,
	wisec_get_digest_algor,
	wisec_get_digest_cap,
	wisec_get_pkey_algor,
	wisec_get_pkey_cap,
	wisec_get_error_reason,
};