1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright (C) 2020 Hyunchul Lee <hyc.lee@gmail.com>
10 #include "exfat_ondisk.h"
14 #include "exfat_dir.h"
17 struct exfat_repair_problem {
18 er_problem_code_t prcode;
20 unsigned int prompt_type;
21 unsigned int default_number;
22 unsigned int bypass_number;
23 unsigned int max_number;
27 #define ERF_PREEN_YES 0x00000001
28 #define ERF_DEFAULT_YES 0x00000002
29 #define ERF_DEFAULT_NO 0x00000004
32 #define ERP_FIX 0x00000001
33 #define ERP_TRUNCATE 0x00000002
34 #define ERP_DELETE 0x00000003
35 #define ERP_RENAME 0x00000004
37 static const char *prompts[] = {
45 static struct exfat_repair_problem problems[] = {
46 {ER_BS_CHECKSUM, ERF_PREEN_YES, ERP_FIX, 0, 0, 0},
47 {ER_BS_BOOT_REGION, 0, ERP_FIX, 0, 0, 0},
48 {ER_DE_CHECKSUM, ERF_PREEN_YES, ERP_DELETE, 0, 0, 0},
49 {ER_DE_UNKNOWN, ERF_PREEN_YES, ERP_DELETE, 0, 0, 0},
50 {ER_DE_FILE, ERF_PREEN_YES, ERP_DELETE, 0, 0, 0},
51 {ER_DE_SECONDARY_COUNT, ERF_PREEN_YES, ERP_DELETE, 0, 0, 0},
52 {ER_DE_STREAM, ERF_PREEN_YES, ERP_DELETE, 0, 0, 0},
53 {ER_DE_NAME, ERF_PREEN_YES, ERP_DELETE, 0, 0, 0},
54 {ER_DE_NAME_HASH, ERF_PREEN_YES, ERP_FIX, 0, 0, 0},
55 {ER_DE_NAME_LEN, ERF_PREEN_YES, ERP_FIX, 0, 0, 0},
56 {ER_DE_DOT_NAME, ERF_PREEN_YES, ERP_RENAME, 2, 3, 4},
57 {ER_FILE_VALID_SIZE, ERF_PREEN_YES, ERP_FIX, 0, 0, 0},
58 {ER_FILE_INVALID_CLUS, ERF_PREEN_YES, ERP_TRUNCATE, 0, 0, 0},
59 {ER_FILE_FIRST_CLUS, ERF_PREEN_YES, ERP_TRUNCATE, 0, 0, 0},
60 {ER_FILE_SMALLER_SIZE, ERF_PREEN_YES, ERP_TRUNCATE, 0, 0, 0},
61 {ER_FILE_LARGER_SIZE, ERF_PREEN_YES, ERP_TRUNCATE, 0, 0, 0},
62 {ER_FILE_DUPLICATED_CLUS, ERF_PREEN_YES, ERP_TRUNCATE, 0, 0, 0},
63 {ER_FILE_ZERO_NOFAT, ERF_PREEN_YES, ERP_FIX, 0, 0, 0},
64 {ER_DE_FIRST_CLUS, ERF_PREEN_YES, ERP_FIX, 0, 0, 0}
67 static struct exfat_repair_problem *find_problem(er_problem_code_t prcode)
71 for (i = 0; i < sizeof(problems)/sizeof(problems[0]); i++) {
72 if (problems[i].prcode == prcode) {
79 static int ask_repair(struct exfat_fsck *fsck, struct exfat_repair_problem *pr)
84 if (fsck->options & FSCK_OPTS_REPAIR_NO ||
85 pr->flags & ERF_DEFAULT_NO)
87 else if (fsck->options & FSCK_OPTS_REPAIR_YES ||
88 pr->flags & ERF_DEFAULT_YES)
91 if (fsck->options & FSCK_OPTS_REPAIR_ASK) {
93 if (pr->prompt_type & ERP_RENAME) {
94 printf("%s (Number: ?) ",
95 prompts[pr->prompt_type]);
97 printf(". %s (y/N)? ",
98 prompts[pr->prompt_type]);
102 if (!fgets(answer, sizeof(answer), stdin))
105 if (pr->prompt_type & ERP_RENAME) {
106 unsigned int number = atoi(answer);
108 if (number > 0 && number < pr->max_number)
111 if (strcasecmp(answer, "Y\n") == 0)
113 else if (strcasecmp(answer, "\n") == 0 ||
114 strcasecmp(answer, "N\n") == 0)
118 } else if (fsck->options & FSCK_OPTS_REPAIR_AUTO &&
119 pr->flags & ERF_PREEN_YES)
123 if (pr->prompt_type & ERP_RENAME) {
124 int print_num = repair ? pr->default_number : pr->bypass_number;
126 printf("%s (Number : %d)\n", prompts[pr->prompt_type],
130 printf(". %s (y/N)? %c\n", prompts[pr->prompt_type],
136 int exfat_repair_ask(struct exfat_fsck *fsck, er_problem_code_t prcode,
137 const char *desc, ...)
139 struct exfat_repair_problem *pr = NULL;
143 pr = find_problem(prcode);
145 exfat_err("unknown problem code. %#x\n", prcode);
153 repair = ask_repair(fsck, pr);
155 if (pr->prompt_type & ERP_TRUNCATE)
156 fsck->dirty_fat = true;