110 lines
3.5 KiB
C
110 lines
3.5 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LITEIPC_H
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#define _LITEIPC_H
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#include <stdint.h>
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#define LITEIPC_DRIVER "/dev/lite_ipc"
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typedef enum { OBJ_FD, OBJ_PTR, OBJ_SVC } ObjType;
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typedef struct {
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uint32_t buffSz;
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void *buff;
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} BuffPtr;
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typedef struct {
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uint32_t handle;
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uint32_t token;
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uint32_t cookie;
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} SvcIdentity;
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typedef union {
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uint32_t fd;
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BuffPtr ptr;
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SvcIdentity svc;
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} ObjContent;
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typedef struct {
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ObjType type;
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ObjContent content;
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} SpecialObj;
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typedef enum { MT_REQUEST, MT_REPLY, MT_FAILED_REPLY, MT_DEATH_NOTIFY } MsgType;
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typedef enum { CMS_GEN_HANDLE, CMS_REMOVE_HANDLE, CMS_ADD_ACCESS } CmsCmd;
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/* lite ipc ioctl */
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#define IPC_IOC_MAGIC 'i'
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#define IPC_SET_CMS _IO(IPC_IOC_MAGIC, 1)
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#define IPC_CMS_CMD _IOWR(IPC_IOC_MAGIC, 2, CmsCmdContent)
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#define IPC_SET_IPC_THREAD _IO(IPC_IOC_MAGIC, 3)
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#define IPC_SEND_RECV_MSG _IOWR(IPC_IOC_MAGIC, 4, IpcContent)
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typedef struct {
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CmsCmd cmd;
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uint32_t taskID;
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uint32_t serviceHandle;
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} CmsCmdContent;
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typedef struct {
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MsgType type; /**< cmd type, decide the data structure below */
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SvcIdentity target; /**< serviceHandle or targetTaskId, depending on type */
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uint32_t code;
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uint32_t flag;
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#if (USE_TIMESTAMP == YES)
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uint64_t timestamp;
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#endif
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uint32_t dataSz; /**< size of data */
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void* data;
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uint32_t spObjNum;
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void* offsets;
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uint32_t processID; /**< filled by kernel, processId of sender/reciever */
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uint32_t taskID; /**< filled by kernel, taskId of sender/reciever */
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#ifdef LOSCFG_SECURITY_CAPABILITY
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uint32_t userID;
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uint32_t gid;
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#endif
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} IpcMsg;
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#define SEND (1 << 0)
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#define RECV (1 << 1)
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#define BUFF_FREE (1 << 2)
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typedef struct {
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uint32_t flag;
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IpcMsg *outMsg; /**< data to send to target */
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IpcMsg *inMsg; /**< data reply by target */
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void *buffToFree;
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} IpcContent;
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#endif //_LITEIPC_H
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