kernel_liteos_a/fs/patchfs/los_patchfs.c

102 lines
3.7 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.
*/
#include "los_patchfs.h"
#include "los_partition_utils.h"
#include "sys/mount.h"
#include "vnode.h"
#ifdef LOSCFG_PLATFORM_PATCHFS
INT32 OsMountPatchFs(VOID)
{
INT32 ret;
struct PartitionInfo partInfo = {
PATCHPART_NAME, PATCH_CMDLINE_ARGNAME,
PATCH_STORAGE_ARGNAME, NULL,
PATCH_FSTYPE_ARGNAME, NULL,
PATCH_ADDR_ARGNAME, -1,
PATCH_SIZE_ARGNAME, -1,
NULL, PATCH_PARTITIONNUM
};
#ifdef LOSCFG_SECURITY_BOOT
partInfo.storageType = strdup(STORAGE_TYPE);
if (partInfo.storageType == NULL) {
return LOS_NOK;
}
partInfo.fsType = strdup(FS_TYPE);
if (partInfo.fsType == NULL) {
return LOS_NOK;
}
partInfo.startAddr = PATCHFS_FLASH_ADDR;
partInfo.partSize = PATCHFS_FLASH_SIZE;
#else
ret = GetPartitionInfo(&partInfo);
if (ret != LOS_OK) {
return ret;
}
partInfo.startAddr = (partInfo.startAddr >= 0) ? partInfo.startAddr : PATCHFS_FLASH_ADDR;
partInfo.partSize = (partInfo.partSize >= 0) ? partInfo.partSize : PATCHFS_FLASH_SIZE;
#endif
ret = LOS_NOK;
partInfo.devName = strdup(PATCH_FLASH_DEV_NAME);
if (partInfo.devName == NULL) {
return LOS_NOK;
}
const CHAR *devName = GetDevNameOfPartition(&partInfo);
if (devName != NULL) {
ret = mkdir(PATCHFS_MOUNT_POINT, 0);
if (ret == LOS_OK) {
ret = mount(devName, PATCHFS_MOUNT_POINT, partInfo.fsType, MS_RDONLY, NULL);
if (ret != LOS_OK) {
int err = get_errno();
PRINT_ERR("Failed to mount %s, errno %d: %s\n", partInfo.partName, err, strerror(err));
}
} else {
int err = get_errno();
PRINT_ERR("Failed to mkdir %s, errno %d: %s\n", PATCHFS_MOUNT_POINT, err, strerror(err));
}
}
if ((ret != LOS_OK) && (devName != NULL)) {
ResetDevNameofPartition(&partInfo);
}
free(partInfo.devName);
free(partInfo.storageType);
free(partInfo.fsType);
return ret;
}
#endif // LOSCFG_PLATFORM_PATCHFS