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/**
* dump.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"
#define BUF_SZ 80
const char *seg_type_name[SEG_TYPE_MAX] = {
"SEG_TYPE_DATA",
"SEG_TYPE_CUR_DATA",
"SEG_TYPE_NODE",
"SEG_TYPE_CUR_NODE",
};
void sit_dump(struct f2fs_sb_info *sbi, int start_sit, int end_sit)
{
struct seg_entry *se;
int segno;
char buf[BUF_SZ];
u32 free_segs = 0;;
u64 valid_blocks = 0;
int ret;
int fd;
fd = open("dump_sit", O_CREAT|O_WRONLY|O_TRUNC, 0666);
ASSERT(fd >= 0);
for (segno = start_sit; segno < end_sit; segno++) {
se = get_seg_entry(sbi, segno);
memset(buf, 0, BUF_SZ);
snprintf(buf, BUF_SZ, "%5d %8d\n", segno, se->valid_blocks);
ret = write(fd, buf, strlen(buf));
ASSERT(ret >= 0);
DBG(4, "SIT[0x%3x] : 0x%x\n", segno, se->valid_blocks);
if (se->valid_blocks == 0x0) {
free_segs++;
} else {
ASSERT(se->valid_blocks <= 512);
valid_blocks += se->valid_blocks;
}
}
memset(buf, 0, BUF_SZ);
snprintf(buf, BUF_SZ, "valid_segs:%d\t free_segs:%d\n",
SM_I(sbi)->main_segments - free_segs, free_segs);
ret = write(fd, buf, strlen(buf));
ASSERT(ret >= 0);
close(fd);
DBG(1, "Blocks [0x%lx] Free Segs [0x%x]\n", valid_blocks, free_segs);
}
void ssa_dump(struct f2fs_sb_info *sbi, int start_ssa, int end_ssa)
{
struct f2fs_summary_block sum_blk;
char buf[BUF_SZ];
int segno, i, ret;
int fd;
fd = open("dump_ssa", O_CREAT|O_WRONLY|O_TRUNC, 0666);
ASSERT(fd >= 0);
snprintf(buf, BUF_SZ, "Note: dump.f2fs -b blkaddr = 0x%x + segno * "
" 0x200 + offset\n",
sbi->sm_info->main_blkaddr);
ret = write(fd, buf, strlen(buf));
ASSERT(ret >= 0);
for (segno = start_ssa; segno < end_ssa; segno++) {
ret = get_sum_block(sbi, segno, &sum_blk);
memset(buf, 0, BUF_SZ);
switch (ret) {
case SEG_TYPE_CUR_NODE:
snprintf(buf, BUF_SZ, "\n\nsegno: %x, Current Node\n", segno);
break;
case SEG_TYPE_CUR_DATA:
snprintf(buf, BUF_SZ, "\n\nsegno: %x, Current Data\n", segno);
break;
case SEG_TYPE_NODE:
snprintf(buf, BUF_SZ, "\n\nsegno: %x, Node\n", segno);
break;
case SEG_TYPE_DATA:
snprintf(buf, BUF_SZ, "\n\nsegno: %x, Data\n", segno);
break;
}
ret = write(fd, buf, strlen(buf));
ASSERT(ret >= 0);
for (i = 0; i < ENTRIES_IN_SUM; i++) {
memset(buf, 0, BUF_SZ);
if (i % 10 == 0) {
buf[0] = '\n';
ret = write(fd, buf, strlen(buf));
ASSERT(ret >= 0);
}
snprintf(buf, BUF_SZ, "[%3d: %6x]", i,
le32_to_cpu(sum_blk.entries[i].nid));
ret = write(fd, buf, strlen(buf));
ASSERT(ret >= 0);
}
}
close(fd);
}
int dump_node(struct f2fs_sb_info *sbi, nid_t nid)
{
struct node_info ni;
struct f2fs_node *node_blk;
int ret;
ret = get_node_info(sbi, nid, &ni);
ASSERT(ret >= 0);
node_blk = calloc(BLOCK_SZ, 1);
dev_read_block(node_blk, ni.blk_addr);
DBG(1, "Node ID [0x%x]\n", nid);
DBG(1, "nat_entry.block_addr [0x%x]\n", ni.blk_addr);
DBG(1, "nat_entry.version [0x%x]\n", ni.version);
DBG(1, "nat_entry.ino [0x%x]\n", ni.ino);
if (ni.blk_addr == 0x0) {
MSG(0, "Invalid nat entry\n\n");
}
DBG(1, "node_blk.footer.ino [0x%x]\n", le32_to_cpu(node_blk->footer.ino));
DBG(1, "node_blk.footer.nid [0x%x]\n", le32_to_cpu(node_blk->footer.nid));
if (le32_to_cpu(node_blk->footer.ino) == ni.ino &&
le32_to_cpu(node_blk->footer.nid) == ni.nid) {
print_node_info(node_blk);
} else {
MSG(0, "Invalid node block\n\n");
}
free(node_blk);
return 0;
}
int dump_inode_from_blkaddr(struct f2fs_sb_info *sbi, u32 blk_addr)
{
nid_t ino, nid;
int type, ret;
struct f2fs_summary sum_entry;
struct node_info ni;
struct f2fs_node *node_blk;
type = get_sum_entry(sbi, blk_addr, &sum_entry);
nid = le32_to_cpu(sum_entry.nid);
ret = get_node_info(sbi, nid, &ni);
ASSERT(ret >= 0);
DBG(1, "Note: blkaddr = main_blkaddr + segno * 512 + offset\n");
DBG(1, "Block_addr [0x%x]\n", blk_addr);
DBG(1, " - Segno [0x%x]\n", GET_SEGNO(sbi, blk_addr));
DBG(1, " - Offset [0x%x]\n", OFFSET_IN_SEG(sbi, blk_addr));
DBG(1, "SUM.nid [0x%x]\n", nid);
DBG(1, "SUM.type [%s]\n", seg_type_name[type]);
DBG(1, "SUM.version [%d]\n", sum_entry.version);
DBG(1, "SUM.ofs_in_node [%d]\n", sum_entry.ofs_in_node);
DBG(1, "NAT.blkaddr [0x%x]\n", ni.blk_addr);
DBG(1, "NAT.ino [0x%x]\n", ni.ino);
node_blk = calloc(BLOCK_SZ, 1);
read_node_blk:
dev_read_block(node_blk, blk_addr);
ino = le32_to_cpu(node_blk->footer.ino);
nid = le32_to_cpu(node_blk->footer.nid);
if (ino == nid) {
print_node_info(node_blk);
} else {
ret = get_node_info(sbi, ino, &ni);
goto read_node_blk;
}
free(node_blk);
return ino;
}
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