1/* 2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved. 3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, this list of 9 * conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 12 * of conditions and the following disclaimer in the documentation and/or other materials 13 * provided with the distribution. 14 * 15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used 16 * to endorse or promote products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31#include "los_patchfs.h" 32#include "los_partition_utils.h" 33 34#include "sys/mount.h" 35#include "vnode.h" 36 37#ifdef LOSCFG_PLATFORM_PATCHFS 38 39INT32 OsMountPatchFs(VOID) 40{ 41 INT32 ret; 42 struct PartitionInfo partInfo = { 43 PATCHPART_NAME, PATCH_CMDLINE_ARGNAME, 44 PATCH_STORAGE_ARGNAME, NULL, 45 PATCH_FSTYPE_ARGNAME, NULL, 46 PATCH_ADDR_ARGNAME, -1, 47 PATCH_SIZE_ARGNAME, -1, 48 NULL, PATCH_PARTITIONNUM 49 }; 50 51#ifdef LOSCFG_SECURITY_BOOT 52 partInfo.storageType = strdup(STORAGE_TYPE); 53 if (partInfo.storageType == NULL) { 54 return LOS_NOK; 55 } 56 partInfo.fsType = strdup(FS_TYPE); 57 if (partInfo.fsType == NULL) { 58 ret = LOS_NOK; 59 goto EXIT; 60 } 61 partInfo.startAddr = PATCHFS_FLASH_ADDR; 62 partInfo.partSize = PATCHFS_FLASH_SIZE; 63#else 64 ret = GetPartitionInfo(&partInfo); 65 if (ret != LOS_OK) { 66 goto EXIT; 67 } 68 partInfo.startAddr = (partInfo.startAddr >= 0) ? partInfo.startAddr : PATCHFS_FLASH_ADDR; 69 partInfo.partSize = (partInfo.partSize >= 0) ? partInfo.partSize : PATCHFS_FLASH_SIZE; 70#endif 71 72 ret = LOS_NOK; 73 partInfo.devName = strdup(PATCH_FLASH_DEV_NAME); 74 if (partInfo.devName == NULL) { 75 goto EXIT; 76 } 77 const CHAR *devName = GetDevNameOfPartition(&partInfo); 78 if (devName != NULL) { 79 ret = mkdir(PATCHFS_MOUNT_POINT, 0); 80 if (ret == LOS_OK) { 81 ret = mount(devName, PATCHFS_MOUNT_POINT, partInfo.fsType, MS_RDONLY, NULL); 82 if (ret != LOS_OK) { 83 int err = get_errno(); 84 PRINT_ERR("Failed to mount %s, errno %d: %s\n", partInfo.partName, err, strerror(err)); 85 } 86 } else { 87 int err = get_errno(); 88 PRINT_ERR("Failed to mkdir %s, errno %d: %s\n", PATCHFS_MOUNT_POINT, err, strerror(err)); 89 } 90 } 91 92 if ((ret != LOS_OK) && (devName != NULL)) { 93 ResetDevNameofPartition(&partInfo); 94 } 95 96EXIT: 97 free(partInfo.devName); 98 partInfo.devName = NULL; 99 free(partInfo.storageType); 100 partInfo.storageType = NULL; 101 free(partInfo.fsType); 102 partInfo.fsType = NULL; 103 return ret; 104} 105 106#endif // LOSCFG_PLATFORM_PATCHFS 107