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security_itrustee_ree_lite/interfaces/innerkits/libteec/tee_client_api.h
mamingshuai 8e0c5a541a update openharmony 1.0.1
2021-03-11 18:41:53 +08:00

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/*
* Copyright (c) 2020 Huawei Device Co., Ltd.
* 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.
*/
#ifndef _TEE_CLIENT_API_H_
#define _TEE_CLIENT_API_H_
#include <string.h>
#include "tee_client_type.h"
#ifdef __cplusplus
extern "C" {
#endif
#define S_VAR_NOT_USED(variable) do { (void)(variable); } while (0)
/**
* @ingroup TEEC_BASIC_FUNC
* Calculate the values of the transfer parameters between REE and TEE
*/
#define TEEC_PARAM_TYPES(param0Type, param1Type, param2Type, param3Type) \
((param3Type) << 12 | (param2Type) << 8 | (param1Type) << 4 | (param0Type))
/**
* @ingroup TEEC_BASIC_FUNC
* Get the index value in parmaTypes
*/
#define TEEC_PARAM_TYPE_GET(paramTypes, index) \
(((paramTypes) >> (4 * (index))) & 0x0F)
/**
* @ingroup TEEC_BASIC_FUNC
* When the parameter type is #teec_value, if the member variable a or b is not assigned,
* you need to assign this value to it, indicates that this member variable is not used.
*/
#define TEEC_VALUE_UNDEF 0xFFFFFFFF
/**
* @ingroup TEEC_VERSION
* TEEC version number 1.0 : TrustedCore1.xx version
*/
#define TEEC_VERSION (100)
/**
* @ingroup TEEC_BASIC_FUNC
* Debug interface, it is valid when the macro TEEC_DEBUG is defined
*/
#ifdef TEEC_DEBUG
#define TEEC_Debug(fmt, args...) printf("%s: " fmt, __func__, ## args);
#else
#define TEEC_Debug(fmt, args...)
#endif
/**
* @ingroup TEEC_BASIC_FUNC
* Debug interface，API print error message
*/
#define TEEC_Error(fmt, args...) printf("%s: " fmt, __func__, ## args);
/**
* @ingroup TEEC_BASIC_FUNC
* @brief Initialize the TEE context
*
* @par Description
* Initialize the TEE context whose path is 'name'. The 'name' parameter can be left empty,
* TEE initialization is the basis for opening a session and sending a command,
* after the initialization is successful, a connection is set up between the CA and the TEE.
*
* @param name [IN] Tee context path
* @param context [IN/OUT] Context pointer，secure world environment handle
*
* @retval #TEEC_SUCCESS TEE context is successfully initialized
* @retval #TEEC_ERROR_BAD_PARAMETERS Parameter is incorrect, name is incorrect or context is empty
* @retval #TEEC_ERROR_GENERIC System resources are insufficient
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
* @see TEEC_FinalizeContext
*/
TEEC_Result TEEC_InitializeContext(
const char *name,
TEEC_Context *context);
/**
* @ingroup TEEC_BASIC_FUNC
* @brief Close tee context
*
* @par Description
* Close the TEE context to which the 'context' points, and disconnect the client application from the TEE environment.
*
* @param context [IN/OUT] The TEE context that has been successfully initialized
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
* @see TEEC_InitializeContext
*/
void TEEC_FinalizeContext(
TEEC_Context *context);
/*
* @ingroup TEEC_BASIC_FUNC
* @brief Open session
*
* @par Description
* Create a session which is from CA to the 'destination' UUID TA,
* the connection method is 'connectionMethod', and the connection data is 'connectionData',
* The transferred data is contained in the 'opetation'.
* After a session is opened successfully, the output parameter 'session' is a description of the connection.
* If the session fails to be opened, 'returnOrigin' is the error source.
*
* @param context [IN/OUT] The TEE context that has been successfully initialized
* @param session [OUT] Point to the session, the value cannot be empty.
* @param destination [IN] UUID of a security service, a security service has a unique UUID.
* @param connectionMethod [IN] Connection mode. The value range is #TEEC_LoginMethod.
* @param connectionData [IN] Connection data corresponding to the link mode
* If connection mode is #TEEC_LOGIN_PUBLIC, #TEEC_LOGIN_USE,
* #TEEC_LOGIN_USER_APPLICATION, #TEEC_LOGIN_GROUP_APPLICATION, connection data must be empty.
* If connection mode is #TEEC_LOGIN_GROUP、#TEEC_LOGIN_GROUP_APPLICATION，
* the connection data must point to data of type uint32_t,
* which represents the user group that the client application expects to connect to.
* @param operation [IN/OUT] Data transferred between CAs and TAs
* @param returnOrigin [IN/OUT] Error source. The value range is #TEEC_ReturnCodeOrigin.
*
* @retval #TEEC_SUCCESS Open successfully.
* @retval #TEEC_ERROR_BAD_PARAMETERS The parameter is incorrect.
* @retval #TEEC_ERROR_ACCESS_DENIED Failed to access the system call permission.
* @retval #TEEC_ERROR_OUT_OF_MEMORY Insufficient system resources.
* @retval #TEEC_ERROR_TRUSTED_APP_LOAD_ERROR Failed to load the security service.
* @retval Other return values, see. #TEEC_ReturnCode
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
* @see TEEC_CloseSession
*/
TEEC_Result TEEC_OpenSession(
TEEC_Context *context,
TEEC_Session *session,
const TEEC_UUID *destination,
uint32_t connectionMethod,
const void *connectionData,
TEEC_Operation *operation,
uint32_t *returnOrigin);
/**
* @ingroup TEEC_BASIC_FUNC
* @brief Close session
*
* @par Description
* Close the session to which the session points, and disconnect the client application from the security service.
*
* @param session [IN/OUT] Point to a session that has been opened successfully
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
* @see TEEC_OpenSession
*/
void TEEC_CloseSession(
TEEC_Session *session);
/**
* @ingroup TEEC_BASIC_FUNC
* @brief Send a command.
*
* @par Description
* In a specified 'session', the CA sends the 'commandID' command to the TA.
* The sent data is 'operation'.
* If the command fails to be sent, the 'returnOrigin' indicate the error source.
*
* @param session [IN/OUT] Point to a session that has been successfully opened
* @param commandID [IN] Command ID supported by the security service, which is defined by the security service.
* @param operation [IN/OUT] Contain the data sent from the CA to the TA.
* @param returnOrigin [IN/OUT] Error source. The value range is #TEEC_ReturnCodeOrigin.
*
* @retval #TEEC_SUCCESS Command sent successfully.
* @retval #TEEC_ERROR_BAD_PARAMETERS The parameter is incorrect,
* the session parameter is empty or the operation parameter is in an incorrect format.
* @retval #TEEC_ERROR_ACCESS_DENIED Failed to access the system call permission.
* @retval #TEEC_ERROR_OUT_OF_MEMORY Insufficient system resources.
* @retval other return values, see. #TEEC_ReturnCode
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
*/
TEEC_Result TEEC_InvokeCommand(
TEEC_Session *session,
uint32_t commandID,
TEEC_Operation *operation,
uint32_t *returnOrigin);
/**
* @ingroup TEEC_BASIC_FUNC
* @brief Register the Shared Memory
*
* @par Description
* Registers the shared memory 'sharedMem' in the specified TEE 'context'，
* the operating system needs to support zero copy to obtain the shared memory through registration,
* in the current implementation, zero copy cannot be implemented in this mode.
*
* @attention If the size field of the input parameter 'sharedMem' is set to 0,
* the function returns a success message, but this Shared memory field cannot be used,
* because this memory has no size
* @param context [IN/OUT] TEE context that has been successfully initialized
* @param sharedMem [IN/OUT] Pointer to the shared memory, the memory cannot be null or 0.
*
* @retval #TEEC_SUCCESS Command sent successfully.
* @retval #TEEC_ERROR_BAD_PARAMETERS The parameter is incorrect. The context or sharedMem parameter is empty，
* or the memory to which the shared memory points is empty.
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
* @see TEEC_AllocateSharedMemory
*/
TEEC_Result TEEC_RegisterSharedMemory(
TEEC_Context *context,
TEEC_SharedMemory *sharedMem);
/**
* @ingroup TEEC_BASIC_FUNC
* @brief Apply for Shared Memory
*
* @par Description
* Apply for the shared memory 'sharedMem' in the specified TEE 'context',
* the shared memory can implement zero copy when data is transferred
* between the non-secure world and the secure world.
*
* @attention If the size field of the input parameter 'sharedMem' is set to 0,
* the function returns a success message, but this shared memory cannot be used,
* because this memory has neither address nor size.
* @param context [IN/OUT] TEE environment that has been successfully initialized
* @param sharedMem [IN/OUT] Point to the shared memory. The size of the shared memory cannot be 0.
*
* @retval #TEEC_SUCCESS Command sent successfully.
* @retval #TEEC_ERROR_BAD_PARAMETERS The parameter is incorrect. The context or sharedMem parameter is empty.
* @retval #TEEC_ERROR_OUT_OF_MEMORY Allocation failed due to insufficient system resources.
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
* @see TEEC_RegisterSharedMemory
*/
TEEC_Result TEEC_AllocateSharedMemory(
TEEC_Context *context,
TEEC_SharedMemory *sharedMem);
/**
* @ingroup TEEC_BASIC_FUNC
* @brief Release the shared memory.
*
* @par Description
* Releases the shared memory that has been registered or applied for.
*
* @attention If the shared memory is obtained in #TEEK_AllocateSharedMemory mode, When the memory is released,
* the memory is reclaimed. If the #TEEK_RegisterSharedMemory method is used:Obtained shared memory.
* The local memory to which the shared memory points is not reclaimed when the shared memory is released.
* @param sharedMem [IN/OUT] Pointing to the shared memory that has been registered or applied for successfully
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
* @see TEEC_RegisterSharedMemory | TEEC_AllocateSharedMemory
*/
void TEEC_ReleaseSharedMemory(
TEEC_SharedMemory *sharedMem);
/**
* @ingroup TEEC_BASIC_FUNC
* @brief cancel API
*
* @par Description
* Cancel a running open session or an invoke command.
* Send a cancel signal and return immediately.
*
* @attention This operation only sends a cancel message,
* whether to perform the cancel operation is determined by the TEE or TA.
* @param operation [IN/OUT] Contains the data sent from the CA to the TA.
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
*/
void TEEC_RequestCancellation(const TEEC_Operation *operation);
/**
* @ingroup TEEC_EXT_FUNC
* @brief register agent API
*
* @par Description
* Register the agent (listener) with the REE
*
* @attention This operation first maps and registers the shared memory (only 4 KB shared memory is supported),
* then register the agent.
* @param agent_id [IN] Agent_id is the unique identifier for communicating with the TA,
* so TA use this agent_id to send a message to the CA
* @param dev_fd [OUT] The descriptor for accessing the TEE driver device.
* @param buffer [OUT] User-Mode Address Pointing to the Shared Memory
* @retval #TEEC_SUCCESS agent regiter success
* @retval #TEEC_ERROR_GENERIC generic error
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
*/
TEEC_Result TEEC_EXT_RegisterAgent(uint32_t agentId, int *devFd, void **buffer);
/**
* @ingroup TEEC_EXT_FUNC
* @brief wait for event from TA
*
* @par Description
* REE agent wait for TEE TA evnet
*
* @attention This API will be blocked, invoking this API in the newly thread is suggested.
* @param agent_id [IN] Agent_id is the unique identifier for communicating with the TA,
* so TA use this agent_id to send a message to the CA
* @param dev_fd [IN] The descriptor for accessing the TEE driver device.
* @retval #TEEC_SUCCESS agent wait for TA message success
* @retval #TEEC_ERROR_GENERIC generic error
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header file
*/
TEEC_Result TEEC_EXT_WaitEvent(uint32_t agentId, int devFd);
/**
* @ingroup TEEC_EXT_FUNC
* @brief send response to TA
*
* @par Description
* Agent response TA event
*
* @attention This API will wake up main thread
* @param agent_id [IN] Agent_id is the unique identifier for communicating with the TA,
* so TA use this agent_id to send a message to the CA
* @param dev_fd [IN] The descriptor for accessing the TEE driver device.
* @retval #TEEC_SUCCESS Agent response send success
* @retval #TEEC_ERROR_GENERIC Generic error
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header
*/
TEEC_Result TEEC_EXT_SendEventResponse(uint32_t agentId, int devFd);
/**
* @ingroup TEEC_EXT_FUNC
* @brief unregister agent API
*
* @par Description
* Agent（listener）unregister
*
* @attention The API instructs the kernel to deregister the agent and release the shared memory.
* Therefore, the user-mode pointer cannot be used any more.
* @param agent_id [IN] Agent_id is the unique identifier for communicating with the TA,
* so TA use this agent_id to send a message to the CA
* @param dev_fd [IN] The descriptor for accessing the TEE driver device.
* @param buffer [IN] The user-state address that shares memory, and the function returns with a pointer null
* @retval #TEEC_SUCCESS Agent unregister success
* @retval #TEEC_ERROR_GENERIC Generic error
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header
*/
TEEC_Result TEEC_EXT_UnregisterAgent(uint32_t agentId, int devFd, void **buffer);
/**
* @ingroup TEEC_GetTEEVersion
* @brief send response to TA
*
* @par Description
* Ree get tee version
*
* @par Dependency
* @li libteec: library
* @li tee_client_api.h: header
*/
uint32_t TEEC_GetTEEVersion(void);
/**
* Function: TEEC_Send_Secfile
* Description: This function sends a secfile to TEE and saves it for use.
* Parameters: session: the session to close.
* Return: NULL
*/
TEEC_Result TEEC_SendSecfile(const char *path, TEEC_Session *session);
#ifdef __cplusplus
}
#endif
#endif
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