104 lines
3.4 KiB
C
104 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
|
|
* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
* conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
* of conditions and the following disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
|
|
* to endorse or promote products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include "capability_api.h"
|
|
#include "errno.h"
|
|
#include "fs/fs_operation.h"
|
|
#include "fs/file.h"
|
|
#include "string.h"
|
|
#include "stdlib.h"
|
|
#include "sys/stat.h"
|
|
#include "vnode.h"
|
|
#include "fs/mount.h"
|
|
#include <fcntl.h>
|
|
|
|
/****************************************************************************
|
|
* Static Functions
|
|
****************************************************************************/
|
|
/****************************************************************************
|
|
* Name: chattr
|
|
*
|
|
* Returned Value:
|
|
* Zero on success; -1 on failure with errno set:
|
|
*
|
|
****************************************************************************/
|
|
|
|
int chattr(const char *pathname, struct IATTR *attr)
|
|
{
|
|
struct Vnode *vnode = NULL;
|
|
int ret;
|
|
|
|
if (pathname == NULL || attr == NULL) {
|
|
set_errno(EINVAL);
|
|
return VFS_ERROR;
|
|
}
|
|
|
|
VnodeHold();
|
|
ret = VnodeLookup(pathname, &vnode, 0);
|
|
if (ret != LOS_OK) {
|
|
goto errout_with_lock;
|
|
}
|
|
|
|
if ((vnode->originMount) && (vnode->originMount->mountFlags & MS_RDONLY)) {
|
|
ret = -EROFS;
|
|
goto errout_with_lock;
|
|
}
|
|
|
|
/* The way we handle the stat depends on the type of vnode that we
|
|
* are dealing with.
|
|
*/
|
|
|
|
if (vnode->vop != NULL && vnode->vop->Chattr != NULL) {
|
|
ret = vnode->vop->Chattr(vnode, attr);
|
|
} else {
|
|
ret = -ENOSYS;
|
|
}
|
|
VnodeDrop();
|
|
|
|
if (ret < 0) {
|
|
goto errout;
|
|
}
|
|
|
|
return OK;
|
|
|
|
/* Failure conditions always set the errno appropriately */
|
|
|
|
errout_with_lock:
|
|
VnodeDrop();
|
|
errout:
|
|
set_errno(-ret);
|
|
return VFS_ERROR;
|
|
}
|