ta/rpc_test/ta_rpc.c

// SPDX-License-Identifier: BSD-2-Clause
/*
 * Copyright (c) 2014, STMicroelectronics International N.V.
 * All rights reserved.
 */
#include <stdint.h>

#include <ta_rpc.h>
#include <tee_api.h>
#include <trace.h>
#include <ta_crypt.h>
#include <ta_sims_test.h>

static TEE_UUID cryp_uuid = TA_CRYPT_UUID;

static TEE_Result rpc_call_cryp(bool sec_mem, uint32_t nParamTypes,
				TEE_Param pParams[4], uint32_t cmd)
{
	TEE_TASessionHandle cryp_session = TEE_HANDLE_NULL;
	TEE_Result res = TEE_ERROR_GENERIC;
	uint32_t origin = 0;
	TEE_Param params[4] = { };
	size_t n = 0;
	uint32_t types =
	    TEE_PARAM_TYPES(TEE_PARAM_TYPE_NONE, TEE_PARAM_TYPE_NONE,
			    TEE_PARAM_TYPE_NONE, TEE_PARAM_TYPE_NONE);

	res = TEE_OpenTASession(&cryp_uuid, TEE_TIMEOUT_INFINITE, types,
				params, &cryp_session, &origin);

	if (res != TEE_SUCCESS) {
		EMSG("rpc_sha256 - TEE_OpenTASession returned 0x%x\n",
		     (unsigned int)res);
		return res;
	}

	types = nParamTypes;
	if (sec_mem) {
		TEE_MemFill(params, 0, sizeof(params));
		for (n = 0; n < 4; n++) {
			switch (TEE_PARAM_TYPE_GET(types, n)) {
			case TEE_PARAM_TYPE_VALUE_INPUT:
			case TEE_PARAM_TYPE_VALUE_INOUT:
				params[n].value = pParams[n].value;
				break;

			case TEE_PARAM_TYPE_MEMREF_INPUT:
			case TEE_PARAM_TYPE_MEMREF_OUTPUT:
			case TEE_PARAM_TYPE_MEMREF_INOUT:
				params[n].memref.buffer =
					TEE_Malloc(pParams[n].memref.size, 0);
				if (!params[n].memref.buffer)
					TEE_Panic(0);
				params[n].memref.size = pParams[n].memref.size;
				if (TEE_PARAM_TYPE_GET(types, n) !=
				    TEE_PARAM_TYPE_MEMREF_OUTPUT)
					TEE_MemMove(params[n].memref.buffer,
						    pParams[n].memref.buffer,
						    pParams[n].memref.size);
				break;
			default:
				break;
			}
		}
	} else {
		TEE_MemMove(params, pParams, sizeof(params));
	}

	res = TEE_InvokeTACommand(cryp_session, TEE_TIMEOUT_INFINITE, cmd,
				types, params, &origin);
	if (res != TEE_SUCCESS) {
		EMSG("rpc_call_cryp - TEE_InvokeTACommand returned 0x%x\n",
		     (unsigned int)res);
	}

	TEE_CloseTASession(cryp_session);

	if (sec_mem) {
		for (n = 0; n < 4; n++) {
			switch (TEE_PARAM_TYPE_GET(types, n)) {
			case TEE_PARAM_TYPE_VALUE_INOUT:
			case TEE_PARAM_TYPE_VALUE_OUTPUT:
				pParams[n].value = params[n].value;
				break;

			case TEE_PARAM_TYPE_MEMREF_INPUT:
			case TEE_PARAM_TYPE_MEMREF_OUTPUT:
			case TEE_PARAM_TYPE_MEMREF_INOUT:
				if (TEE_PARAM_TYPE_GET(types, n) !=
				    TEE_PARAM_TYPE_MEMREF_INPUT)
					TEE_MemMove(pParams[n].memref.buffer,
						    params[n].memref.buffer,
						    params[n].memref.size);
				pParams[n].memref.size = params[n].memref.size;
				TEE_Free(params[n].memref.buffer);
				break;
			default:
				break;
			}
		}

	}

	return res;
}

TEE_Result rpc_sha224(bool sec_mem, uint32_t nParamTypes, TEE_Param pParams[4])
{
	return rpc_call_cryp(sec_mem, nParamTypes, pParams,
			     TA_CRYPT_CMD_SHA224);
}

TEE_Result rpc_sha256(bool sec_mem, uint32_t nParamTypes, TEE_Param pParams[4])
{
	return rpc_call_cryp(sec_mem, nParamTypes, pParams,
			     TA_CRYPT_CMD_SHA256);
}

TEE_Result rpc_aes256ecb_encrypt(bool sec_mem, uint32_t nParamTypes,
				 TEE_Param pParams[4])
{
	return rpc_call_cryp(sec_mem, nParamTypes, pParams,
			     TA_CRYPT_CMD_AES256ECB_ENC);
}

TEE_Result rpc_aes256ecb_decrypt(bool sec_mem, uint32_t nParamTypes,
				 TEE_Param pParams[4])
{
	return rpc_call_cryp(sec_mem, nParamTypes, pParams,
			     TA_CRYPT_CMD_AES256ECB_DEC);
}

TEE_Result rpc_open(void *session_context, uint32_t param_types,
		    TEE_Param params[4])
{
	TEE_TASessionHandle session = TEE_HANDLE_NULL;
	uint32_t orig = 0;
	TEE_Result res = TEE_ERROR_GENERIC;
	TEE_UUID uuid = TA_SIMS_TEST_UUID;
	uint32_t types =
	    TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_OUTPUT, TEE_PARAM_TYPE_NONE,
			    TEE_PARAM_TYPE_NONE, TEE_PARAM_TYPE_NONE);
	TEE_Param par[4] = { };

	(void)session_context;
	(void)param_types;

	res = TEE_OpenTASession(&uuid, TEE_TIMEOUT_INFINITE, 0, NULL, &session,
				&orig);

	if (res != TEE_SUCCESS)
		return res;

	TEE_MemFill(params, 0, sizeof(TEE_Param) * 4);
	res =
	    TEE_InvokeTACommand(session, TEE_TIMEOUT_INFINITE,
				TA_SIMS_CMD_GET_COUNTER, types, par, &orig);

	if (res != TEE_SUCCESS)
		goto exit;

exit:
	TEE_CloseTASession(session);

	return res;
}