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
OsMountPatchFs(VOID)39 INT32 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
96 EXIT:
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