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/**
* main.c
*
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include "fsck.h"
#include <libgen.h>
struct f2fs_fsck gfsck;
void fsck_usage()
{
MSG(0, "\nUsage: fsck.f2fs [options] device\n");
MSG(0, "[options]:\n");
MSG(0, " -d debug level [default:0]\n");
exit(1);
}
void dump_usage()
{
MSG(0, "\nUsage: dump.f2fs [options] device\n");
MSG(0, "[options]:\n");
MSG(0, " -d debug level [default:0]\n");
MSG(0, " -i inode no (hex)\n");
MSG(0, " -s [SIT dump segno from #1~#2 (decimal), for all 0~-1]\n");
MSG(0, " -a [SSA dump segno from #1~#2 (decimal), for all 0~-1]\n");
MSG(0, " -b blk_addr (in 4KB)\n");
exit(1);
}
void f2fs_parse_options(int argc, char *argv[])
{
int option = 0;
char *prog = basename(argv[0]);
if (!strcmp("fsck.f2fs", prog)) {
const char *option_string = "d:tf";
config.func = FSCK;
while ((option = getopt(argc, argv, option_string)) != EOF) {
switch (option) {
case 'd':
config.dbg_lv = atoi(optarg);
MSG(0, "Info: Debug level = %d\n",
config.dbg_lv);
break;
case 't':
config.dbg_lv = -1;
break;
case 'f':
config.fix_on = 1;
MSG(0, "Info: Force to fix corruption\n");
break;
default:
MSG(0, "\tError: Unknown option %c\n", option);
fsck_usage();
break;
}
}
} else if (!strcmp("dump.f2fs", prog)) {
const char *option_string = "d:i:s:a:b:";
static struct dump_option dump_opt = {
.nid = 3, /* default root ino */
.start_sit = -1,
.end_sit = -1,
.start_ssa = -1,
.end_ssa = -1,
.blk_addr = -1,
};
config.func = DUMP;
while ((option = getopt(argc, argv, option_string)) != EOF) {
int ret = 0;
switch (option) {
case 'd':
config.dbg_lv = atoi(optarg);
MSG(0, "Info: Debug level = %d\n",
config.dbg_lv);
break;
case 'i':
if (strncmp(optarg, "0x", 2))
ret = sscanf(optarg, "%d",
&dump_opt.nid);
else
ret = sscanf(optarg, "%x",
&dump_opt.nid);
break;
case 's':
ret = sscanf(optarg, "%d~%d",
&dump_opt.start_sit,
&dump_opt.end_sit);
break;
case 'a':
ret = sscanf(optarg, "%d~%d",
&dump_opt.start_ssa,
&dump_opt.end_ssa);
break;
case 'b':
if (strncmp(optarg, "0x", 2))
ret = sscanf(optarg, "%d",
&dump_opt.blk_addr);
else
ret = sscanf(optarg, "%x",
&dump_opt.blk_addr);
break;
default:
MSG(0, "\tError: Unknown option %c\n", option);
dump_usage();
break;
}
ASSERT(ret >= 0);
}
config.private = &dump_opt;
}
if ((optind + 1) != argc) {
MSG(0, "\tError: Device not specified\n");
if (config.func == FSCK)
fsck_usage();
else if (config.func == DUMP)
dump_usage();
}
config.device_name = argv[optind];
}
static void do_fsck(struct f2fs_sb_info *sbi)
{
u32 blk_cnt;
config.bug_on = 0;
fsck_init(sbi);
fsck_chk_orphan_node(sbi);
/* Traverse all block recursively from root inode */
blk_cnt = 1;
fsck_chk_node_blk(sbi, NULL, sbi->root_ino_num,
F2FS_FT_DIR, TYPE_INODE, &blk_cnt);
fsck_verify(sbi);
fsck_free(sbi);
}
static void do_dump(struct f2fs_sb_info *sbi)
{
struct dump_option *opt = (struct dump_option *)config.private;
fsck_init(sbi);
if (opt->end_sit == -1)
opt->end_sit = SM_I(sbi)->main_segments;
if (opt->end_ssa == -1)
opt->end_ssa = SM_I(sbi)->main_segments;
if (opt->start_sit != -1)
sit_dump(sbi, opt->start_sit, opt->end_sit);
if (opt->start_ssa != -1)
ssa_dump(sbi, opt->start_ssa, opt->end_ssa);
if (opt->blk_addr != -1) {
dump_inode_from_blkaddr(sbi, opt->blk_addr);
goto cleanup;
}
dump_node(sbi, opt->nid);
cleanup:
fsck_free(sbi);
}
int main(int argc, char **argv)
{
struct f2fs_sb_info *sbi;
int ret = 0;
f2fs_init_configuration(&config);
f2fs_parse_options(argc, argv);
if (f2fs_dev_is_umounted(&config) < 0)
return -1;
/* Get device */
if (f2fs_get_device_info(&config) < 0)
return -1;
fsck_again:
memset(&gfsck, 0, sizeof(gfsck));
gfsck.sbi.fsck = &gfsck;
sbi = &gfsck.sbi;
if (f2fs_do_mount(sbi) < 0)
return -1;
switch (config.func) {
case FSCK:
do_fsck(sbi);
break;
case DUMP:
do_dump(sbi);
break;
}
f2fs_do_umount(sbi);
if (config.func == FSCK && config.bug_on) {
if (config.fix_on == 0) {
char ans[255] = {0};
retry:
printf("Do you want to fix this partition? [Y/N] ");
ret = scanf("%s", ans);
ASSERT(ret >= 0);
if (!strcasecmp(ans, "y"))
config.fix_cnt++;
else if (!strcasecmp(ans, "n"))
config.fix_cnt = 0;
else
goto retry;
} else {
config.fix_cnt++;
}
/* avoid infinite trials */
if (config.fix_cnt > 0 && config.fix_cnt < 4)
goto fsck_again;
}
f2fs_finalize_device(&config);
printf("\nDone.\n");
return 0;
}
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