97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/*
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* Copyright (c) 2023-2023 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_DEVICELIMIT_H
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#define _LOS_DEVICELIMIT_H
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#include "los_typedef.h"
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#include "los_list.h"
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#include "vfs_config.h"
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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 DEVLIMIT_ACC_MKNOD 1
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#define DEVLIMIT_ACC_READ 2
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#define DEVLIMIT_ACC_WRITE 4
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#define DEVLIMIT_ACC_MASK (DEVLIMIT_ACC_MKNOD | DEVLIMIT_ACC_READ | DEVLIMIT_ACC_WRITE)
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#define DEVLIMIT_DEV_BLOCK 1
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#define DEVLIMIT_DEV_CHAR 2
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#define DEVLIMIT_DEV_ALL 4 /* all devices */
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#define DEVLIMIT_ALLOW 1
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#define DEVLIMIT_DENY 2
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#define ACCLEN 4
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struct SeqBuf;
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typedef struct TagPLimiterSet ProcLimitSet;
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enum DevLimitBehavior {
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DEVLIMIT_DEFAULT_NONE,
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DEVLIMIT_DEFAULT_ALLOW,
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DEVLIMIT_DEFAULT_DENY,
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};
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typedef struct DevAccessItem {
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INT16 type;
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INT16 access;
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LOS_DL_LIST list;
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CHAR name[PATH_MAX];
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} DevAccessItem;
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typedef struct ProcDevLimit {
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struct ProcDevLimit *parent;
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UINT8 allowFile;
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UINT8 denyFile;
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LOS_DL_LIST accessList; // device belong to devicelimite
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enum DevLimitBehavior behavior;
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} ProcDevLimit;
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VOID OsDevLimitInit(UINTPTR limit);
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VOID *OsDevLimitAlloc(VOID);
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VOID OsDevLimitFree(UINTPTR limit);
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VOID OsDevLimitCopy(UINTPTR dest, UINTPTR src);
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UINT32 OsDevLimitWriteAllow(ProcLimitSet *plimit, const CHAR *buf, UINT32 size);
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UINT32 OsDevLimitWriteDeny(ProcLimitSet *plimit, const CHAR *buf, UINT32 size);
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UINT32 OsDevLimitShow(ProcDevLimit *devLimit, struct SeqBuf *seqBuf);
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UINT32 OsDevLimitCheckPermission(INT32 vnodeType, const CHAR *pathName, INT32 flags);
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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 /* _LOS_DEVICELIMIT_H */
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