564 lines
18 KiB
C
564 lines
18 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2023 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 _LOS_PROCESS_PRI_H
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#define _LOS_PROCESS_PRI_H
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#include "los_task_pri.h"
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#include "sched.h"
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#include "los_sem_pri.h"
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#include "los_process.h"
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#include "los_vm_map.h"
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#ifdef LOSCFG_KERNEL_LITEIPC
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#include "hm_liteipc.h"
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#endif
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#ifdef LOSCFG_SECURITY_CAPABILITY
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#include "capability_type.h"
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#endif
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#ifdef LOSCFG_SECURITY_VID
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#include "vid_type.h"
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#endif
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#include "sys/resource.h"
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#ifdef LOSCFG_KERNEL_CONTAINER
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#include "los_container_pri.h"
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#endif
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#ifdef LOSCFG_KERNEL_PLIMITS
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#include "los_plimits.h"
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#endif
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#define OS_PCB_NAME_LEN OS_TCB_NAME_LEN
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#ifdef LOSCFG_SECURITY_CAPABILITY
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#define OS_GROUPS_NUMBER_MAX 256
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typedef struct {
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UINT32 userID;
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UINT32 effUserID;
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UINT32 gid;
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UINT32 effGid;
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UINT32 groupNumber;
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UINT32 groups[1];
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} User;
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#endif
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typedef struct ProcessGroup {
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UINTPTR pgroupLeader; /**< Process group leader is the the process that created the group */
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LOS_DL_LIST processList; /**< List of processes under this process group */
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LOS_DL_LIST exitProcessList; /**< List of closed processes (zombie processes) under this group */
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LOS_DL_LIST groupList; /**< Process group list */
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} ProcessGroup;
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typedef struct ProcessCB {
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CHAR processName[OS_PCB_NAME_LEN]; /**< Process name */
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UINT32 processID; /**< Process ID */
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UINT16 processStatus; /**< [15:4] Process Status; [3:0] The number of threads currently
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running in the process */
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UINT16 consoleID; /**< The console id of task belongs */
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UINT16 processMode; /**< Kernel Mode:0; User Mode:1; */
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struct ProcessCB *parentProcess; /**< Parent process */
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UINT32 exitCode; /**< Process exit status */
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LOS_DL_LIST pendList; /**< Block list to which the process belongs */
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LOS_DL_LIST childrenList; /**< Children process list */
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LOS_DL_LIST exitChildList; /**< Exit children process list */
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LOS_DL_LIST siblingList; /**< Linkage in parent's children list */
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ProcessGroup *pgroup; /**< Process group to which a process belongs */
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LOS_DL_LIST subordinateGroupList; /**< Linkage in group list */
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LosTaskCB *threadGroup;
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LOS_DL_LIST threadSiblingList; /**< List of threads under this process */
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volatile UINT32 threadNumber; /**< Number of threads alive under this process */
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UINT32 threadCount; /**< Total number of threads created under this process */
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LOS_DL_LIST waitList; /**< The process holds the waitLits to support wait/waitpid */
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#ifdef LOSCFG_KERNEL_SMP
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UINT32 timerCpu; /**< CPU core number of this task is delayed or pended */
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#endif
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UINTPTR sigHandler; /**< Signal handler */
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sigset_t sigShare; /**< Signal share bit */
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#ifdef LOSCFG_KERNEL_LITEIPC
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ProcIpcInfo *ipcInfo; /**< Memory pool for lite ipc */
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#endif
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#ifdef LOSCFG_KERNEL_VM
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LosVmSpace *vmSpace; /**< VMM space for processes */
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#endif
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#ifdef LOSCFG_FS_VFS
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struct files_struct *files; /**< Files held by the process */
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#endif
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timer_t timerID; /**< ITimer */
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#ifdef LOSCFG_SECURITY_CAPABILITY
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User *user;
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UINT32 capability;
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#endif
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#ifdef LOSCFG_SECURITY_VID
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TimerIdMap timerIdMap;
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#endif
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#ifdef LOSCFG_DRIVERS_TZDRIVER
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struct Vnode *execVnode; /**< Exec bin of the process */
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#endif
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mode_t umask;
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#ifdef LOSCFG_KERNEL_CPUP
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OsCpupBase *processCpup; /**< Process cpu usage */
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#endif
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struct rlimit *resourceLimit;
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#ifdef LOSCFG_KERNEL_CONTAINER
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Container *container;
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#ifdef LOSCFG_USER_CONTAINER
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struct Credentials *credentials;
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#endif
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#endif
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#ifdef LOSCFG_PROC_PROCESS_DIR
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struct ProcDirEntry *procDir;
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#endif
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#ifdef LOSCFG_KERNEL_PLIMITS
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ProcLimiterSet *plimits;
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LOS_DL_LIST plimitsList; /* plimit process list */
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PLimitsData limitStat;
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#endif
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} LosProcessCB;
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extern LosProcessCB *g_processCBArray;
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extern UINT32 g_processMaxNum;
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#define OS_PCB_FROM_RPID(processID) (((LosProcessCB *)g_processCBArray) + (processID))
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#ifdef LOSCFG_PID_CONTAINER
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#define OS_PCB_FROM_PID(processID) OsGetPCBFromVpid(processID)
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#else
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#define OS_PCB_FROM_PID(processID) OS_PCB_FROM_RPID(processID)
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#endif
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#define OS_PCB_FROM_TCB(taskCB) ((LosProcessCB *)((taskCB)->processCB))
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#define OS_PCB_FROM_TID(taskID) ((LosProcessCB *)(OS_TCB_FROM_TID(taskID)->processCB))
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#define OS_GET_PGROUP_LEADER(pgroup) ((LosProcessCB *)((pgroup)->pgroupLeader))
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#define OS_PCB_FROM_SIBLIST(ptr) LOS_DL_LIST_ENTRY((ptr), LosProcessCB, siblingList)
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#define OS_PCB_FROM_PENDLIST(ptr) LOS_DL_LIST_ENTRY((ptr), LosProcessCB, pendList)
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process is created but does not participate in scheduling.
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*/
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#define OS_PROCESS_STATUS_INIT OS_TASK_STATUS_INIT
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process is ready.
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*/
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#define OS_PROCESS_STATUS_READY OS_TASK_STATUS_READY
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process is running.
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*/
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#define OS_PROCESS_STATUS_RUNNING OS_TASK_STATUS_RUNNING
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process is pending
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*/
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#define OS_PROCESS_STATUS_PENDING (OS_TASK_STATUS_PENDING | OS_TASK_STATUS_DELAY | OS_TASK_STATUS_SUSPENDED)
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process is run out but the resources occupied by the process are not recovered.
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*/
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#define OS_PROCESS_STATUS_ZOMBIES 0x0100U
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process status equal this is process control block unused,
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* coexisting with OS_PROCESS_STATUS_ZOMBIES means that the control block is not recovered.
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*/
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#define OS_PROCESS_FLAG_UNUSED 0x0200U
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process has been call exit, it only works with multiple cores.
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*/
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#define OS_PROCESS_FLAG_EXIT 0x0400U
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process is the leader of the process group.
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*/
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#define OS_PROCESS_FLAG_GROUP_LEADER 0x0800U
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process has performed the exec operation.
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*/
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#define OS_PROCESS_FLAG_ALREADY_EXEC 0x1000U
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/**
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* @ingroup los_process
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* Flag that indicates the process or process control block status.
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*
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* The process is dying or already dying.
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*/
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#define OS_PROCESS_STATUS_INACTIVE (OS_PROCESS_FLAG_EXIT | OS_PROCESS_STATUS_ZOMBIES)
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/**
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* @ingroup los_process
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* Used to check if the process control block is unused.
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*/
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STATIC INLINE BOOL OsProcessIsUnused(const LosProcessCB *processCB)
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{
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return ((processCB->processStatus & OS_PROCESS_FLAG_UNUSED) != 0);
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}
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/**
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* @ingroup los_process
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* Used to check if the process is inactive.
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*/
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STATIC INLINE BOOL OsProcessIsInactive(const LosProcessCB *processCB)
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{
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return ((processCB->processStatus & (OS_PROCESS_FLAG_UNUSED | OS_PROCESS_STATUS_INACTIVE)) != 0);
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}
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/**
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* @ingroup los_process
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* Used to check if the process is dead.
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*/
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STATIC INLINE BOOL OsProcessIsDead(const LosProcessCB *processCB)
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{
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return ((processCB->processStatus & OS_PROCESS_STATUS_ZOMBIES) != 0);
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}
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STATIC INLINE BOOL OsProcessIsInit(const LosProcessCB *processCB)
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{
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return ((processCB->processStatus & OS_PROCESS_STATUS_INIT) != 0);
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}
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STATIC INLINE BOOL OsProcessIsPGroupLeader(const LosProcessCB *processCB)
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{
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return ((processCB->processStatus & OS_PROCESS_FLAG_GROUP_LEADER) != 0);
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}
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/**
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* @ingroup los_process
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* The highest priority of a kernel mode process.
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*/
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#define OS_PROCESS_PRIORITY_HIGHEST 0
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/**
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* @ingroup los_process
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* The lowest priority of a kernel mode process
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*/
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#define OS_PROCESS_PRIORITY_LOWEST 31
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/**
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* @ingroup los_process
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* The highest priority of a user mode process.
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*/
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#define OS_USER_PROCESS_PRIORITY_HIGHEST 10
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/**
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* @ingroup los_process
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* The lowest priority of a user mode process
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*/
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#define OS_USER_PROCESS_PRIORITY_LOWEST OS_PROCESS_PRIORITY_LOWEST
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/**
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* @ingroup los_process
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* User state root process default priority
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*/
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#define OS_PROCESS_USERINIT_PRIORITY 28
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/**
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* @ingroup los_process
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* ID of the kernel idle process
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*/
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#define OS_KERNEL_IDLE_PROCESS_ID 0U
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/**
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* @ingroup los_process
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* ID of the user root process
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*/
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#define OS_USER_ROOT_PROCESS_ID 1U
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/**
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* @ingroup los_process
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* ID of the kernel root process
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*/
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#define OS_KERNEL_ROOT_PROCESS_ID 2U
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#define OS_TASK_DEFAULT_STACK_SIZE 0x2000
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#define OS_USER_TASK_SYSCALL_STACK_SIZE 0x3000
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#define OS_USER_TASK_STACK_SIZE 0x100000
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#define OS_KERNEL_MODE 0x0U
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#define OS_USER_MODE 0x1U
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STATIC INLINE BOOL OsProcessIsUserMode(const LosProcessCB *processCB)
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{
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return (processCB->processMode == OS_USER_MODE);
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}
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#define LOS_PRIO_PROCESS 0U
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#define LOS_PRIO_PGRP 1U
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#define LOS_PRIO_USER 2U
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#define OS_USER_PRIVILEGE_PROCESS_GROUP ((UINTPTR)OsGetUserInitProcess())
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#define OS_KERNEL_PROCESS_GROUP ((UINTPTR)OsGetKernelInitProcess())
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/*
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* Process exit code
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* 31 15 8 7 0
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* | | exit code | core dump | signal |
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*/
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#define OS_PRO_EXIT_OK 0
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STATIC INLINE VOID OsProcessExitCodeCoreDumpSet(LosProcessCB *processCB)
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{
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processCB->exitCode |= 0x80U;
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}
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STATIC INLINE VOID OsProcessExitCodeSignalSet(LosProcessCB *processCB, UINT32 signal)
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{
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processCB->exitCode |= signal & 0x7FU;
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}
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STATIC INLINE VOID OsProcessExitCodeSignalClear(LosProcessCB *processCB)
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{
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processCB->exitCode &= (~0x7FU);
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}
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STATIC INLINE BOOL OsProcessExitCodeSignalIsSet(LosProcessCB *processCB)
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{
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return (processCB->exitCode) & 0x7FU;
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}
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STATIC INLINE VOID OsProcessExitCodeSet(LosProcessCB *processCB, UINT32 code)
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{
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processCB->exitCode |= ((code & 0x000000FFU) << 8U) & 0x0000FF00U; /* 8: Move 8 bits to the left, exitCode */
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}
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#define OS_PID_CHECK_INVALID(pid) (((UINT32)(pid)) >= g_processMaxNum)
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STATIC INLINE BOOL OsProcessIDUserCheckInvalid(UINT32 pid)
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{
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return ((pid >= g_processMaxNum) || (pid == 0));
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}
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STATIC INLINE LosProcessCB *OsCurrProcessGet(VOID)
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{
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UINT32 intSave;
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intSave = LOS_IntLock();
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LosProcessCB *runProcess = OS_PCB_FROM_TCB(OsCurrTaskGet());
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LOS_IntRestore(intSave);
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return runProcess;
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}
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#ifdef LOSCFG_SECURITY_CAPABILITY
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STATIC INLINE User *OsCurrUserGet(VOID)
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{
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User *user = NULL;
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UINT32 intSave;
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intSave = LOS_IntLock();
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user = OsCurrProcessGet()->user;
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LOS_IntRestore(intSave);
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return user;
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}
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STATIC INLINE UINT32 OsProcessUserIDGet(const LosTaskCB *taskCB)
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{
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UINT32 intSave = LOS_IntLock();
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UINT32 uid = OS_INVALID;
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LosProcessCB *process = OS_PCB_FROM_TCB(taskCB);
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if (process->user != NULL) {
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uid = process->user->userID;
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}
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LOS_IntRestore(intSave);
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return uid;
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}
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#endif
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STATIC INLINE BOOL OsIsProcessThreadGroup(const LosTaskCB *taskCB)
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{
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return (OS_PCB_FROM_TCB(taskCB)->threadGroup == taskCB);
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}
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STATIC INLINE UINT32 OsProcessThreadNumberGet(const LosTaskCB *taskCB)
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{
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return OS_PCB_FROM_TCB(taskCB)->threadNumber;
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}
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#ifdef LOSCFG_KERNEL_VM
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STATIC INLINE LosVmSpace *OsProcessVmSpaceGet(const LosProcessCB *processCB)
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{
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return processCB->vmSpace;
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}
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#endif
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#ifdef LOSCFG_DRIVERS_TZDRIVER
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STATIC INLINE struct Vnode *OsProcessExecVnodeGet(const LosProcessCB *processCB)
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{
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return processCB->execVnode;
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}
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#endif
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STATIC INLINE UINT32 OsGetPid(const LosProcessCB *processCB)
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{
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#ifdef LOSCFG_PID_CONTAINER
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if (OS_PROCESS_CONTAINER_CHECK(processCB, OsCurrProcessGet())) {
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return OsGetVpidFromCurrContainer(processCB);
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}
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#endif
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return processCB->processID;
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}
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STATIC INLINE UINT32 OsGetRootPid(const LosProcessCB *processCB)
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{
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#ifdef LOSCFG_PID_CONTAINER
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return OsGetVpidFromRootContainer(processCB);
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#else
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return processCB->processID;
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#endif
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}
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/*
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* return immediately if no child has exited.
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*/
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#define LOS_WAIT_WNOHANG (1 << 0U)
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/*
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* return if a child has stopped (but not traced via ptrace(2)).
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* Status for traced children which have stopped is provided even
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* if this option is not specified.
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*/
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#define LOS_WAIT_WUNTRACED (1 << 1U)
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#define LOS_WAIT_WSTOPPED (1 << 1U)
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/*
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* Wait for exited processes
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*/
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#define LOS_WAIT_WEXITED (1 << 2U)
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/*
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* return if a stopped child has been resumed by delivery of SIGCONT.
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* (For Linux-only options, see below.)
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*/
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#define LOS_WAIT_WCONTINUED (1 << 3U)
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/*
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* Leave the child in a waitable state;
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* a later wait call can be used to again retrieve the child status information.
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*/
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#define LOS_WAIT_WNOWAIT (1 << 24U)
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/*
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* Indicates that you are already in a wait state
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*/
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#define OS_PROCESS_WAIT (1 << 15U)
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/*
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* Wait for any child process to finish
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*/
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#define OS_PROCESS_WAIT_ANY OS_TASK_WAIT_ANYPROCESS
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/*
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* Wait for the child process specified by the pid to finish
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*/
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#define OS_PROCESS_WAIT_PRO OS_TASK_WAIT_PROCESS
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/*
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* Waits for any child process in the specified process group to finish.
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*/
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#define OS_PROCESS_WAIT_GID OS_TASK_WAIT_GID
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#define OS_PROCESS_INFO_ALL 1
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#define OS_PROCESS_DEFAULT_UMASK 0022
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extern UINTPTR __user_init_entry;
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extern UINTPTR __user_init_bss;
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extern UINTPTR __user_init_end;
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extern UINTPTR __user_init_load_addr;
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extern UINT32 OsProcessInit(VOID);
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extern UINT32 OsSystemProcessCreate(VOID);
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extern VOID OsProcessNaturalExit(LosProcessCB *processCB, UINT32 status);
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extern VOID OsProcessCBRecycleToFree(VOID);
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extern VOID OsProcessResourcesToFree(LosProcessCB *processCB);
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extern UINT32 OsUserInitProcess(VOID);
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extern INT32 OsClone(UINT32 flags, UINTPTR sp, UINT32 size);
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extern VOID OsExecProcessVmSpaceRestore(LosVmSpace *oldSpace);
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extern LosVmSpace *OsExecProcessVmSpaceReplace(LosVmSpace *newSpace, UINTPTR stackBase, INT32 randomDevFD);
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extern UINT32 OsExecRecycleAndInit(LosProcessCB *processCB, const CHAR *name, LosVmSpace *oldAspace, UINTPTR oldFiles);
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extern UINT32 OsExecStart(const TSK_ENTRY_FUNC entry, UINTPTR sp, UINTPTR mapBase, UINT32 mapSize);
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extern UINT32 OsSetProcessName(LosProcessCB *processCB, const CHAR *name);
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extern INT32 OsSetProcessScheduler(INT32 which, INT32 pid, UINT16 policy, const LosSchedParam *param);
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extern INT32 OsGetProcessPriority(INT32 which, INT32 pid);
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extern LosProcessCB *OsGetUserInitProcess(VOID);
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extern LosProcessCB *OsGetIdleProcess(VOID);
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extern INT32 OsSetProcessGroupID(UINT32 pid, UINT32 gid);
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extern INT32 OsSetCurrProcessGroupID(UINT32 gid);
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extern LosProcessCB *OsGetKernelInitProcess(VOID);
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extern VOID OsSetSigHandler(UINTPTR addr);
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extern UINTPTR OsGetSigHandler(VOID);
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extern VOID OsWaitWakeTask(LosTaskCB *taskCB, UINT32 wakePID);
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extern INT32 OsSendSignalToProcessGroup(INT32 pid, siginfo_t *info, INT32 permission);
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extern INT32 OsSendSignalToAllProcess(siginfo_t *info, INT32 permission);
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extern UINT32 OsProcessAddNewTask(UINTPTR processID, LosTaskCB *taskCB, SchedParam *param, UINT32 *numCount);
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extern VOID OsDeleteTaskFromProcess(LosTaskCB *taskCB);
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extern VOID OsProcessThreadGroupDestroy(VOID);
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extern UINT32 OsGetProcessGroupCB(UINT32 pid, UINTPTR *ppgroupLeader);
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extern LosProcessCB *OsGetDefaultProcessCB(VOID);
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extern ProcessGroup *OsCreateProcessGroup(LosProcessCB *processCB);
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INT32 OsSchedulerParamCheck(UINT16 policy, BOOL isThread, const LosSchedParam *param);
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif
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