+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* Dispatch functions for RC5 cipher modes ecb, cbc, ofb, cfb */
+
+#include "cipher_rc5.h"
+#include "internal/provider_algs.h"
+#include "internal/providercommonerr.h"
+
+static OSSL_OP_cipher_freectx_fn rc5_freectx;
+static OSSL_OP_cipher_dupctx_fn rc5_dupctx;
+OSSL_OP_cipher_gettable_ctx_params_fn rc5_gettable_ctx_params;
+OSSL_OP_cipher_settable_ctx_params_fn rc5_settable_ctx_params;
+
+static void rc5_freectx(void *vctx)
+{
+ PROV_RC5_CTX *ctx = (PROV_RC5_CTX *)vctx;
+
+ OPENSSL_clear_free(ctx, sizeof(*ctx));
+}
+
+static void *rc5_dupctx(void *ctx)
+{
+ PROV_RC5_CTX *in = (PROV_RC5_CTX *)ctx;
+ PROV_RC5_CTX *ret = OPENSSL_malloc(sizeof(*ret));
+
+ if (ret == NULL) {
+ ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ *ret = *in;
+
+ return ret;
+}
+
+static int rc5_set_ctx_params(void *vctx, const OSSL_PARAM params[])
+{
+ PROV_RC5_CTX *ctx = (PROV_RC5_CTX *)vctx;
+ const OSSL_PARAM *p;
+
+ if (!cipher_generic_set_ctx_params(vctx, params))
+ return 0;
+
+ p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_ROUNDS);
+ if (p != NULL) {
+ unsigned int rounds;
+
+ if (!OSSL_PARAM_get_uint(p, &rounds)) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
+ return 0;
+ }
+ if (rounds != RC5_8_ROUNDS
+ && rounds != RC5_12_ROUNDS
+ && rounds != RC5_16_ROUNDS) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_UNSUPPORTED_NUMBER_OF_ROUNDS);
+ return 0;
+ }
+ ctx->rounds = rounds;
+ }
+ return 1;
+}
+
+CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_START(rc5)
+ OSSL_PARAM_uint(OSSL_CIPHER_PARAM_ROUNDS, NULL),
+CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_END(rc5)
+
+CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_START(rc5)
+ OSSL_PARAM_uint(OSSL_CIPHER_PARAM_ROUNDS, NULL),
+CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_END(rc5)
+
+
+static int rc5_get_ctx_params(void *vctx, OSSL_PARAM params[])
+{
+ PROV_RC5_CTX *ctx = (PROV_RC5_CTX *)vctx;
+ OSSL_PARAM *p;
+
+ if (!cipher_generic_get_ctx_params(vctx, params))
+ return 0;
+ p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_ROUNDS);
+ if (p != NULL && !OSSL_PARAM_set_uint(p, ctx->rounds)) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
+ return 0;
+ }
+ return 1;
+}
+
+#define IMPLEMENT_cipher(alg, UCALG, lcmode, UCMODE, flags, kbits, \
+ blkbits, ivbits, typ) \
+static OSSL_OP_cipher_get_params_fn alg##_##kbits##_##lcmode##_get_params; \
+static int alg##_##kbits##_##lcmode##_get_params(OSSL_PARAM params[]) \
+{ \
+ return cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, flags, \
+ kbits, blkbits, ivbits); \
+} \
+static OSSL_OP_cipher_newctx_fn alg##_##kbits##_##lcmode##_newctx; \
+static void * alg##_##kbits##_##lcmode##_newctx(void *provctx) \
+{ \
+ PROV_##UCALG##_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx)); \
+ if (ctx != NULL) { \
+ cipher_generic_initkey(ctx, kbits, blkbits, ivbits, \
+ EVP_CIPH_##UCMODE##_MODE, flags, \
+ PROV_CIPHER_HW_##alg##_##lcmode(kbits), NULL); \
+ ctx->rounds = RC5_12_ROUNDS; \
+ } \
+ return ctx; \
+} \
+const OSSL_DISPATCH alg##kbits##lcmode##_functions[] = { \
+ { OSSL_FUNC_CIPHER_NEWCTX, \
+ (void (*)(void)) alg##_##kbits##_##lcmode##_newctx }, \
+ { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void)) alg##_freectx }, \
+ { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void)) alg##_dupctx }, \
+ { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))cipher_generic_einit }, \
+ { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))cipher_generic_dinit }, \
+ { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))cipher_generic_##typ##_update },\
+ { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))cipher_generic_##typ##_final }, \
+ { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))cipher_generic_cipher }, \
+ { OSSL_FUNC_CIPHER_GET_PARAMS, \
+ (void (*)(void)) alg##_##kbits##_##lcmode##_get_params }, \
+ { OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
+ (void (*)(void))cipher_generic_gettable_params }, \
+ { OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \
+ (void (*)(void))rc5_get_ctx_params }, \
+ { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
+ (void (*)(void))rc5_gettable_ctx_params }, \
+ { OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
+ (void (*)(void))rc5_set_ctx_params }, \
+ { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
+ (void (*)(void))rc5_settable_ctx_params }, \
+ { 0, NULL } \
+};
+
+/* rc5128ecb_functions */
+IMPLEMENT_cipher(rc5, RC5, ecb, ECB, EVP_CIPH_VARIABLE_LENGTH, 128, 64, 0, block)
+/* rc5128cbc_functions */
+IMPLEMENT_cipher(rc5, RC5, cbc, CBC, EVP_CIPH_VARIABLE_LENGTH, 128, 64, 64, block)
+/* rc5128ofb64_functions */
+IMPLEMENT_cipher(rc5, RC5, ofb64, OFB, EVP_CIPH_VARIABLE_LENGTH, 128, 8, 64, stream)
+/* rc5128cfb64_functions */
+IMPLEMENT_cipher(rc5, RC5, cfb64, CFB, EVP_CIPH_VARIABLE_LENGTH, 128, 8, 64, stream)
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