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reiserfsprogs/utils/fsck/super.c
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/*
* Copyright 2001-2004 by Hans Reiser, licensing governed by
* reiserfsprogs/README
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "fsck.h"
#include "misc/malloc.h"
#include "misc/device.h"
#include "util/print.h"
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#if defined(HAVE_LIBUUID) && defined(HAVE_UUID_UUID_H)
# include <uuid/uuid.h>
#endif
#define fsck_conditional_log(sb_found, fmt, list...) { \
if (sb_found) \
fsck_log(fmt, ## list); \
}
int what_fs_version ()
{
char answer[256];
int version;
printf("\nwhat the version of ReiserFS do you use[1-4]\n"
"\t(1) 3.6.x\n"
"\t(2) >=3.5.9 (introduced in the middle of 1999) (if you use linux 2.2, choose this one)\n"
"\t(3) < 3.5.9 converted to new format (don't choose if unsure)\n"
"\t(4) < 3.5.9 (this is very old format, don't choose if unsure)\n"
"\t(X) exit\n");
fgets(answer, sizeof(answer), stdin);
version = atoi (answer);
if (version < 1 || version > 4)
misc_die ("rebuild_sb: wrong version");
return version;
}
/*
#define super_error(exit_code, text) { \
fsck_log(text); \
return exit_code; \
}
int check_sb (reiserfs_filsys_t * fs) {
int magic = 0, version = 0;
if (!reiserfs_fs_blksize_check (fs->fs_blocksize))
super_error(-1, "Wrong blocksize found in the super block\n");
if (reiserfs_super_36_magic (sb))
magic = 2;
else if (reiserfs_super_35_magic (sb))
magic = 1;
else if (reiserfs_super_jr_magic (sb))
magic = 3;
else
super_error(-1, "Invalid magic found in the super block.\n");
if (magic == 1 || magic == 2) {
if (fsck_data (fs)->journal_dev_name)
fsck_log("Reiserfs with standard journal found, but there was specified a "
"journal dev\n");
standard_journal = 1;
} else {
if (!fsck_data (fs)->journal_dev_name)
super_error(-1, "Reiserfs with non standard journal found, but there was not "
"specified any journal dev\n");
standard_journal = 0;
}
if (reiserfs_sb_get_version (sb) != REISERFS_FORMAT_3_6 && reiserfs_sb_get_version (sb) != REISERFS_FORMAT_3_5)
super_error(-1, "Invalid format found in the super block.\n");
if (reiserfs_new_location(fs->fs_super_bh->b_blocknr, fs->fs_blocksize))
{
if (magic == 3)
version = reiserfs_sb_get_version (sb) == REISERFS_FORMAT_3_6 ? 1 : 2;
else
version = magic == 2 ? 1 : 2;
} else if (reiserfs_old_location(fs->fs_super_bh->b_blocknr, fs->fs_blocksize)) {
if (magic == 3)
version = reiserfs_sb_get_version (sb) == REISERFS_FORMAT_3_6 ? 3 : 4;
else
version = magic == 2 ? 3 : 4;
} else
misc_die("Super block in the wong block(%d).\n", fs->fs_super_bh->b_blocknr);
if (version == 0)
misc_die ("FS format must be figured out here.\n");
if (reiserfs_sb_get_blocks (sb) > misc_device_count_blocks (filename, fs->fs_blocksize))
super_error(-1, "Invalid block count found in the super block.\n");
if (reiserfs_sb_get_blksize (sb) != fs->fs_blocksize)
super_error(-1, "Invalid block size found in the super block (%lu).\n",
reiserfs_sb_get_blksize (sb));
//Non needed from here
p_oid_maxsize = (fs->fs_blocksize - reiserfs_super_size (sb)) / sizeof(__u32) / 2 * 2;
if (reiserfs_sb_get_mapmax (sb) != p_oid_maxsize)
super_error(-1, "Invalid objectid map max size found in the super block (%lu).\n",
reiserfs_sb_get_mapmax (sb));
if (reiserfs_sb_get_mapcur (sb) == 1 || reiserfs_sb_get_mapcur (sb) > reiserfs_sb_get_mapmax (sb))
super_error(-1, "Invalid objectid map found in the super block (%lu).\n",
reiserfs_sb_get_mapcur (sb));
if (reiserfs_sb_get_root (sb) > block_count && reiserfs_sb_get_root (sb) != ~0)
fsck_log("Invalid root block found in the super block (%lu).\n",
reiserfs_sb_get_root (sb));
if (reiserfs_sb_get_free (sb) > block_count)
fsck_log ("Invalid free block count found in the super block (%lu).\n",
reiserfs_sb_get_free (sb));
if (reiserfs_sb_get_height (sb) && ((reiserfs_sb_get_height (sb) < LEAF_LEVEL + 1) ||
(reiserfs_sb_get_height (sb) > REISERFS_TREE_HEIGHT_MAX) && (reiserfs_sb_get_height (sb) != ~0)))
super_error(-1, "Invalid tree height found in the super block (%lu).\n",
reiserfs_sb_get_height (sb));
if (reiserfs_sb_get_hash (sb) && reiserfs_hash_name (reiserfs_sb_get_hash (sb)) == 0)
super_error(-1, "Invalid hash found in the super block (%lu).\n",
reiserfs_sb_get_hash (sb));
if (version == 1 || version == 3) {
if (!uuid_is_correct(sb->s_uuid))
fsck_log ("Invalid uuid found, you should generate a new one.\n");
if (sb->s_flags & 0xfffffffe)
fsck_log ("rebuild-sb: super block flags found (%u), zeroed\n", sb->s_flags);
}
//Not needed till here.
p_bmap_nr = (block_count + (fs->fs_blocksize * 8 - 1)) / (fs->fs_blocksize * 8);
if (reiserfs_sb_get_bmaps (sb) != p_bmap_nr)
super_error(-1, "Invalid bitmap number found in the super block (%lu).\n",
reiserfs_sb_get_bmaps (sb));
if (!fsck_skip_journal (fs) && standard_journal == 1) {
if (reiserfs_jp_get_dev (reiserfs_sb_jp(sb)) != 0)
super_error(-1, "Invalid journal device found (%lu).\n", reiserfs_jp_get_dev (reiserfs_sb_jp(sb)));
if (reiserfs_jp_get_start (reiserfs_sb_jp(sb)) != reiserfs_journal_start_must (fs))
super_error(-1, "Invalid journal first block found (%lu).\n", reiserfs_jp_get_start (reiserfs_sb_jp(sb)));
if (reiserfs_jp_get_size (reiserfs_sb_jp(sb)) != reiserfs_journal_default(fs->fs_super_bh->b_blocknr, fs->fs_blocksize))
super_error(-1, "Invalid journal size found (%lu).\n", reiserfs_jp_get_size (reiserfs_sb_jp(sb)) + 1);
if (reiserfs_jp_get_max_batch (reiserfs_sb_jp(sb)) != reiserfs_journal_batch(reiserfs_jp_get_tlen (reiserfs_sb_jp(sb)))) {
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong journal max batch size occured (%lu), fixed (%d)\n",
reiserfs_jp_get_max_batch (reiserfs_sb_jp(sb)), reiserfs_journal_batch(reiserfs_jp_get_tlen (reiserfs_sb_jp(sb))));
reiserfs_jp_set_max_batch (reiserfs_sb_jp(sb), reiserfs_journal_batch(reiserfs_jp_get_tlen (reiserfs_sb_jp(sb))));
}
if (reiserfs_jp_get_commit_age (reiserfs_sb_jp(sb)) != reiserfs_journal_commit_age()) {
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong journal max commit age occured (%lu), fixed (%d)\n",
reiserfs_jp_get_commit_age (reiserfs_sb_jp(sb)), reiserfs_journal_commit_age());
reiserfs_jp_set_commit_age (reiserfs_sb_jp(sb), reiserfs_journal_commit_age());
}
if (reiserfs_jp_get_trans_age (reiserfs_sb_jp(sb)) != reiserfs_journal_trans_age()) {
fsck_log ("rebuild-sb: wrong journal max commit age occured (%lu), fixed (0)\n",
reiserfs_jp_get_trans_age (reiserfs_sb_jp(sb)), reiserfs_journal_trans_age());
reiserfs_jp_set_trans_age (reiserfs_sb_jp(sb), reiserfs_journal_trans_age());
}
}
*/
void rebuild_sb (reiserfs_filsys_t * fs, char * filename, struct fsck_data * data)
{
struct reiserfs_journal_header *j_head;
__u32 p_jp_journal_1st_block = 0;
int retval, exit_code = EXIT_OK;
reiserfs_sb_t * ondisk_sb = 0;
unsigned long block_count = 0;
char * journal_dev_name = 0;
int standard_journal = -1;
int magic_was_found = 0;
__u32 p_jp_dev_size = 0;
reiserfs_sb_t * sb = 0;
struct stat stat_buf;
__u16 p_oid_maxsize;
char answer[256];
__u32 p_bmap_nr;
int version = 0;
int sb_size;
char * tmp;
#if defined(HAVE_LIBUUID) && defined(HAVE_UUID_UUID_H)
char uuid[37];
uuid[36] = '\0';
#endif
if (fs != NULL) {
sb = misc_getmem (sizeof (*sb));
if (!reiserfs_fs_rw (fs)) {
close (fs->fs_dev);
fs->fs_dev = open (fs->fs_file_name, O_RDWR
#ifdef O_LARGEFILE
| O_LARGEFILE
#endif
);
}
if (!reiserfs_fs_blksize_check (fs->fs_blocksize)) {
printf("\nCannot find a proper blocksize, enter block size [4096]: \n");
fgets(answer, sizeof(answer), stdin);
if (strcmp(answer, "\n")) {
retval = (int) strtol (answer, &tmp, 0);
if ((*tmp && strcmp(tmp, "\n")) || retval < 0)
reiserfs_exit (EXIT_USER, "rebuild_sb: wrong block size specified\n");
if (!reiserfs_fs_blksize_check (retval))
reiserfs_exit (EXIT_USER, "rebuild_sb: wrong block size specified, "
"only power of 2 from 512-8192 interval are supported.\n");
} else
retval = 4096;
fs->fs_blocksize = retval;
}
if (!(block_count = misc_device_count_blocks (filename, fs->fs_blocksize)))
exit(EXIT_OPER);
/* save ondisk_sb somewhere and work in temp area */
ondisk_sb = fs->fs_ondisk_sb;
memcpy (sb, fs->fs_ondisk_sb, sizeof (*sb));
fs->fs_ondisk_sb = sb;
if (reiserfs_super_36_magic (sb)) {
/* 3_6 magic */
if (fsck_data (fs)->journal_dev_name)
/* journal dev must not be specified with standard journal */
reiserfs_exit (EXIT_USER, "ReiserFS with default journal "
"is found, but there was specified a journal device.");
if (fs->fs_super_bh->b_blocknr ==
REISERFS_DISK_OFFSET_IN_BYTES / fs->fs_blocksize)
version = 1;
else if (fs->fs_super_bh->b_blocknr ==
REISERFS_OLD_DISK_OFFSET_IN_BYTES / fs->fs_blocksize)
version = 3;
magic_was_found = 2;
} else if (reiserfs_super_35_magic (sb)) {
if (fsck_data (fs)->journal_dev_name)
/* journal dev must not be specified with standard journal */
reiserfs_exit (EXIT_USER, "ReiserFS with default journal "
"is found, but there was specified a journal device.");
/* 3_5 magic */
if (fs->fs_super_bh->b_blocknr ==
REISERFS_DISK_OFFSET_IN_BYTES / fs->fs_blocksize)
version = 2;
else if (fs->fs_super_bh->b_blocknr ==
REISERFS_OLD_DISK_OFFSET_IN_BYTES / fs->fs_blocksize)
version = 4;
magic_was_found = 1;
} else if (reiserfs_super_jr_magic (sb)) {
if (reiserfs_sb_get_version (sb) == REISERFS_FORMAT_3_6) {
/*non-standard magic + sb_format == 3_6*/
if (fs->fs_super_bh->b_blocknr ==
REISERFS_DISK_OFFSET_IN_BYTES / fs->fs_blocksize)
version = 1;
else if (fs->fs_super_bh->b_blocknr ==
REISERFS_OLD_DISK_OFFSET_IN_BYTES / fs->fs_blocksize)
version = 3;
magic_was_found = 3;
} else if (reiserfs_sb_get_version (sb) == REISERFS_FORMAT_3_5) {
/* non-standard magic + sb_format == 3_5 */
if (fs->fs_super_bh->b_blocknr ==
REISERFS_DISK_OFFSET_IN_BYTES / fs->fs_blocksize)
version = 2;
else if (fs->fs_super_bh->b_blocknr ==
REISERFS_OLD_DISK_OFFSET_IN_BYTES / fs->fs_blocksize)
version = 4;
magic_was_found = 3;
} else {
/* non-standard magic + bad sb_format */
version = 0;
magic_was_found = 3;
}
} else
reiserfs_exit (EXIT_USER, "We opened device but there is no magic "
"and there is no correct superblock format found.");
if (magic_was_found == 1 || magic_was_found == 2)
standard_journal = 1;
else
standard_journal = 0;
if (version == 0)
version = what_fs_version ();
if (reiserfs_sb_get_blocks (sb) != block_count) {
do {
printf("\nDid you use resizer(y/n)[n]: ");
fgets(answer, sizeof(answer), stdin);
} while(strcmp ("y\n", answer) &&
strcmp ("n\n", answer) &&
strcmp ("\n", answer));
if (!strcmp ("y\n", answer)) {
printf("\nEnter partition size [%lu]: ", block_count);
fgets(answer, sizeof(answer), stdin);
if (strcmp ("\n", answer))
block_count = atoi (answer);
} else {
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong block count "
"occured (%lu), fixed (%lu)\n", reiserfs_sb_get_blocks(sb), block_count);
}
reiserfs_sb_set_blocks (sb, block_count);
}
if (reiserfs_sb_get_blksize (sb) != fs->fs_blocksize) {
fsck_log("rebuild-sb: wrong block size occured (%lu), fixed (%lu)\n",
reiserfs_sb_get_blksize (sb), fs->fs_blocksize);
reiserfs_sb_set_blksize (sb, fs->fs_blocksize);
}
}
/* if no reiserfs_found or bad data found in that SB, what was checked in previous
* clause */
if (fs == NULL) {
int fd;
fd = open (filename, O_RDWR
#ifdef O_LARGEFILE
| O_LARGEFILE
#endif
);
if (fd == -1) {
reiserfs_exit (EXIT_OPER, "rebuils_sb: cannot open device %s",
filename);
}
version = what_fs_version ();
if (version == 3 || version == 4) {
retval = 4096;
} else {
printf("\nEnter block size [4096]: \n");
fgets(answer, sizeof(answer), stdin);
if (strcmp(answer, "\n")) {
retval = (int) strtol (answer, &tmp, 0);
if ((*tmp && strcmp(tmp, "\n")) || retval < 0)
reiserfs_exit (EXIT_USER, "rebuild_sb: wrong block size specified\n");
if (!reiserfs_fs_blksize_check (retval))
reiserfs_exit (EXIT_USER, "rebuild_sb: wrong block size specified, "
"only divisible by 1024 are supported currently\n");
} else
retval = 4096;
}
if (!(block_count = misc_device_count_blocks (filename, retval)))
exit(EXIT_OPER);
switch(version){
case 1:
fs = reiserfs_fs_create (filename, REISERFS_FORMAT_3_6,
block_count, retval, 1, 1);
break;
case 2:
fs = reiserfs_fs_create (filename, REISERFS_FORMAT_3_5,
block_count, retval, 1, 1);
break;
case 3:
fs = reiserfs_fs_create (filename, REISERFS_FORMAT_3_6,
block_count, retval, 1, 0);
break;
case 4:
fs = reiserfs_fs_create (filename, REISERFS_FORMAT_3_5,
block_count, retval, 1, 0);
break;
}
if (fs == NULL)
return;
sb = fs->fs_ondisk_sb;
fs->fs_vp = data;
if (!fsck_skip_journal (fs)) {
if (!fsck_data (fs)->journal_dev_name) {
do {
printf("\nNo journal device was specified. (If journal is not "
"available, re-run with --no-journal-available option specified).\n"
"Is journal default? (y/n)[y]: ");
fgets(answer, sizeof(answer), stdin);
} while(strcmp ("y\n", answer) &&
strcmp ("n\n", answer) &&
strcmp ("\n", answer));
if (!strcmp ("n\n", answer)) {
printf("\nSpecify journal device with -j option.\n");
exit(EXIT_USER);
}
standard_journal = 1;
} else {
standard_journal = 0;
memcpy (fs->fs_ondisk_sb->s_v1.s_magic, REISERFS_JR_SUPER_MAGIC_STRING,
strlen (REISERFS_JR_SUPER_MAGIC_STRING));
}
}
do {
printf("\nDid you use resizer(y/n)[n]: ");
fgets(answer, sizeof(answer), stdin);
} while (strcmp ("y\n", answer) &&
strcmp ("n\n", answer) &&
strcmp ("\n", answer));
if (!strcmp ("y\n", answer)) {
printf("\nEnter partition size [%lu]: ", block_count);
fgets(answer, sizeof(answer), stdin);
if (strcmp ("\n", answer))
block_count = atoi (answer);
reiserfs_sb_set_blocks (sb, block_count);
}
reiserfs_sb_set_state (sb, FS_ERROR);
}
if (version == 1 || version == 3) {
if (reiserfs_super_format (sb) != REISERFS_FORMAT_3_6) {
fsck_log("rebuild-sb: wrong reiserfs version occured (%lu), fixed (%lu)\n",
reiserfs_super_format (sb), REISERFS_FORMAT_3_6);
reiserfs_sb_set_version (sb, REISERFS_FORMAT_3_6);
}
} else if (version == 2 || version == 4) {
if (reiserfs_super_format (sb) != REISERFS_FORMAT_3_5) {
fsck_log("rebuild-sb: wrong reiserfs version occured (%lu), fixed (%lu)\n",
reiserfs_super_format (sb), REISERFS_FORMAT_3_5);
reiserfs_sb_set_version (sb, REISERFS_FORMAT_3_5);
}
}
p_oid_maxsize = (fs->fs_blocksize - reiserfs_super_size (sb)) /
sizeof(__u32) / 2 * 2;
if (reiserfs_sb_get_mapmax (sb) != p_oid_maxsize) {
fsck_log("rebuild-sb: wrong objectid map max size occured (%lu), fixed (%lu)\n",
reiserfs_sb_get_mapmax (sb), p_oid_maxsize);
reiserfs_sb_set_mapmax (sb, p_oid_maxsize);
}
p_bmap_nr = reiserfs_bmap_nr(block_count, fs->fs_blocksize);
p_bmap_nr = reiserfs_bmap_over(p_bmap_nr) ? 0 : p_bmap_nr;
if (reiserfs_sb_get_bmaps (sb) != p_bmap_nr) {
fsck_log("rebuild-sb: wrong bitmap number occured (%lu), fixed (%lu)\n",
reiserfs_sb_get_bmaps (sb), p_bmap_nr);
reiserfs_sb_set_bmaps (sb, (__u16)p_bmap_nr);
}
if (reiserfs_sb_get_root (sb) > block_count) {
fsck_log("rebuild-sb: wrong root block occured (%lu), zeroed\n",
reiserfs_sb_get_root (sb));
reiserfs_sb_set_root (sb, 0);
}
if (reiserfs_sb_get_free (sb) > block_count) {
fsck_log ("rebuild-sb: wrong free block count occured (%lu), zeroed\n",
reiserfs_sb_get_free (sb));
reiserfs_sb_set_free (sb, 0);
}
if (reiserfs_sb_get_umount (sb) != FS_CLEANLY_UMOUNTED &&
reiserfs_sb_get_umount (sb) != FS_NOT_CLEANLY_UMOUNTED)
{
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong umount state (%u), "
"fixed to (FS_NOT_CLEANLY_UMOUNTED)\n", reiserfs_sb_get_umount (sb));
reiserfs_sb_set_umount (sb, FS_NOT_CLEANLY_UMOUNTED);
}
if (reiserfs_sb_get_mapcur (sb) == 1 ||
reiserfs_sb_get_mapcur (sb) > reiserfs_sb_get_mapmax (sb))
{
fsck_log("rebuild-sb: wrong objectid map occured (%lu), zeroed\n",
reiserfs_sb_get_mapcur (sb));
reiserfs_sb_set_mapcur (sb, 0);
}
if ( reiserfs_sb_get_height (sb) &&
((reiserfs_sb_get_height (sb) < LEAF_LEVEL + 1) ||
(reiserfs_sb_get_height (sb) > REISERFS_TREE_HEIGHT_MAX)) ) {
fsck_log("rebuild-sb: wrong tree height occured (%u), zeroed\n",
reiserfs_sb_get_height (sb));
reiserfs_sb_set_height (sb, 0);
}
if (reiserfs_sb_get_hash (sb) &&
reiserfs_hash_name (reiserfs_sb_get_hash (sb)) == 0)
{
fsck_log("rebuild-sb: wrong hash occured (%lu), zeroed\n",
reiserfs_sb_get_hash (sb));
reiserfs_sb_set_hash (sb, 0);
}
if (version == 1 || version == 3) {
#if defined(HAVE_LIBUUID) && defined(HAVE_UUID_UUID_H)
if (uuid_is_null(sb->s_uuid)) {
uuid_generate(sb->s_uuid);
fsck_log ("rebuild-sb: no uuid found, a new uuid was "
"generated (%U)\n", sb->s_uuid);
}
#endif
if (sb->s_flags != 0 && sb->s_flags != 1) {
fsck_log ("rebuild-sb: super block flags found (%u), zeroed\n",
sb->s_flags);
sb->s_flags = 0;
}
}
/*
if we have a standard journal
reserved = 0
dev - same
size = reiserfs_journal_default(fs->fs_super_bh->b_blocknr, fs)
offset = reiserfs_journal_default(fs)
if we have a non standard journal
if we found magic string
try to find a jhead and comare dev, size, offset there
if params are not equal move to "if we did not find a magic string" clause
if we did not find a magic string
ask user about his journal
try to find a jhead and comare dev, size, offset there
if params are not equal exit with error
*/
p_jp_journal_1st_block = reiserfs_journal_start_must (fs);
if (standard_journal == 1) {
if (reiserfs_jp_get_dev (reiserfs_sb_jp(sb)) != 0) {
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong journal device "
"occured (%lu), fixed (0)\n", reiserfs_jp_get_dev (reiserfs_sb_jp(sb)));
reiserfs_jp_set_dev (reiserfs_sb_jp(sb), 0);
}
if (reiserfs_sb_get_reserved (sb) != 0) {
fsck_log ("rebuild-sb: wrong size reserved for default journal occured "
"(%lu), fixed (0)\n", reiserfs_sb_get_reserved (sb));
reiserfs_sb_set_reserved (sb, 0);
}
if (reiserfs_jp_get_start (reiserfs_sb_jp(sb)) != p_jp_journal_1st_block) {
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong journal first "
"block occured (%lu), fixed (%lu)\n", reiserfs_jp_get_start (reiserfs_sb_jp(sb)),
p_jp_journal_1st_block);
reiserfs_jp_set_start (reiserfs_sb_jp(sb) , p_jp_journal_1st_block);
}
if (reiserfs_jp_get_size (reiserfs_sb_jp(sb)) !=
reiserfs_journal_default(fs->fs_super_bh->b_blocknr, fs->fs_blocksize))
{
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong journal size "
"occured (%lu), fixed (%lu)\n", reiserfs_jp_get_size (reiserfs_sb_jp(sb)) + 1,
reiserfs_journal_default (fs->fs_super_bh->b_blocknr,
fs->fs_blocksize) + 1);
reiserfs_jp_set_size (reiserfs_sb_jp(sb),
reiserfs_journal_default (fs->fs_super_bh->b_blocknr, fs->fs_blocksize));
}
if ((retval = reiserfs_journal_open(fs, filename, O_RDWR
#ifdef O_LARGEFILE
| O_LARGEFILE
#endif
)))
{
fsck_log("\nrebuild-sb: Failed to open the journal device (%s).\n",
filename);
exit(retval < 0 ? EXIT_OPER : EXIT_USER);
}
} else if (!fsck_skip_journal(fs)) {
/* Check that specified non-standard journal device exists. */
journal_dev_name = fsck_data (fs)->journal_dev_name;
retval = 0;
if (magic_was_found) {
/* Super block was found. Try to open the journal on the base of its
* journal parameters. */
retval = reiserfs_journal_open(fs, journal_dev_name, O_RDWR
#ifdef O_LARGEFILE
| O_LARGEFILE
#endif
);
if (retval == 0) {
journal_dev_name = fs->fs_j_file_name;
j_head = (struct reiserfs_journal_header *)(fs->fs_jh_bh->b_data);
retval = memcmp(&j_head->jh_journal, reiserfs_sb_jp(sb),
sizeof(reiserfs_journal_param_t));
if (retval) {
/* journal parameters from the SB and from the J_Header does not
* match. Close the jouranl, ask the user about correct journal
* parameters. */
reiserfs_journal_close(fs);
}
}
if (!reiserfs_journal_opened(fs)) {
fsck_log ("Journal cannot be opened, assuming the "
"journal device %s is correct\n", journal_dev_name);
}
}
if (!reiserfs_journal_opened(fs)) {
__u64 default_value;
/* journal was not found or SB and J_Header parameters does not match. */
if (magic_was_found == 0)
default_value = (!strcmp(fs->fs_file_name, journal_dev_name)) ?
p_jp_journal_1st_block : 0;
else
default_value = reiserfs_jp_get_start (reiserfs_sb_jp(sb));
printf("\nEnter journal offset on %s in blocks [%Lu]: \n",
journal_dev_name, (unsigned long long)default_value);
fgets(answer, sizeof(answer), stdin);
if (strcmp(answer, "\n")) {
retval = (int) strtol (answer, &tmp, 0);
if ((*tmp && strcmp(tmp, "\n")) || retval < 0)
reiserfs_exit(EXIT_USER, "rebuild_sb: wrong offset specified\n");
reiserfs_jp_set_start (reiserfs_sb_jp(sb), retval);
} else
reiserfs_jp_set_start (reiserfs_sb_jp(sb), default_value);
if (!(p_jp_dev_size = misc_device_count_blocks (journal_dev_name, fs->fs_blocksize)))
exit(EXIT_OPER);
/* some checks for journal offset */
if (strcmp(fs->fs_file_name, journal_dev_name) != 0) {
if (p_jp_dev_size < reiserfs_jp_get_start (reiserfs_sb_jp(sb)) + 1)
reiserfs_exit(EXIT_USER, "rebuild_sb: offset is much than device size\n");
}
/* default size if magic was not found is device size - journal_1st_block;
default size if magic was found is found value + 1 block for journal
header */
if (magic_was_found == 0)
default_value = (!strcmp(fs->fs_file_name, journal_dev_name)) ?
reiserfs_journal_default (fs->fs_super_bh->b_blocknr,
fs->fs_blocksize) + 1 :
p_jp_dev_size - reiserfs_jp_get_start (reiserfs_sb_jp(sb));
else
default_value = reiserfs_jp_get_size (reiserfs_sb_jp(sb)) + 1;
printf("\nEnter journal size (including 1 block for journal header) on "
"%s in blocks [%Lu]: \n", journal_dev_name,
(unsigned long long)default_value);
fgets(answer, sizeof(answer), stdin);
if (strcmp(answer, "\n")) {
retval = (int) strtol (answer, &tmp, 0);
if ((*tmp && strcmp(tmp, "\n")) || retval < 0)
reiserfs_exit(EXIT_USER, "rebuild_sb: wrong offset specified\n");
reiserfs_jp_set_size (reiserfs_sb_jp(sb), retval - 1);
} else {
reiserfs_jp_set_size (reiserfs_sb_jp(sb), default_value - 1);
}
/* some checks for journal size */
if (reiserfs_jp_get_size (reiserfs_sb_jp(sb)) +
reiserfs_jp_get_start (reiserfs_sb_jp(sb)) + 1 > p_jp_dev_size)
reiserfs_exit(EXIT_USER, "rebuild_sb: journal offset + journal size is "
"greater than device size\n");
/* some checks for journal size */
if (reiserfs_jp_get_size (reiserfs_sb_jp(sb)) < JOURNAL_MIN_SIZE)
reiserfs_exit(EXIT_USER, "rebuild_sb: journal size cannot be less than "
"%lu blocks.\n", JOURNAL_MIN_SIZE + 1);
if ((retval = reiserfs_journal_open(fs, journal_dev_name, O_RDWR
#ifdef O_LARGEFILE
| O_LARGEFILE
#endif
)))
{
fsck_log("\nrebuild-sb: Failed to open a journal device (%s).",
journal_dev_name);
exit(retval < 0 ? EXIT_OPER : EXIT_USER);
}
/* SB was found, but journal params were broken and have been recovered.
* Futher work goes as SB would not be found. */
magic_was_found = 0;
}
retval = stat(journal_dev_name, &stat_buf);
if (retval == -1)
reiserfs_exit (EXIT_USER, "rebuild_sb: error while detecting the "
"specified journal device (%s): %s\n", journal_dev_name,
strerror(errno));
if (strcmp (fs->fs_file_name, journal_dev_name))
reiserfs_jp_set_dev (reiserfs_sb_jp(sb), stat_buf.st_rdev);
else
reiserfs_jp_set_dev (reiserfs_sb_jp(sb), 0);
} else {
fsck_log ("\nJournal was specified as not available. reiserfstune is "
"needed.\n\n");
reiserfs_jp_set_magic (reiserfs_sb_jp(sb), NEED_TUNE);
}
if (reiserfs_journal_opened(fs)) {
/* Journal was openned. Check/fix journal parameters and copy it the journal
* header. */
if (reiserfs_jp_get_tlen (reiserfs_sb_jp(sb)) !=
reiserfs_journal_tlen(reiserfs_jp_get_tlen (reiserfs_sb_jp(sb)),
reiserfs_jp_get_size (reiserfs_sb_jp(sb)),
fs->fs_blocksize, 0))
{
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong journal max "
"transaction length occured (%lu), fixed (%d)\n",
reiserfs_jp_get_tlen (reiserfs_sb_jp(sb)),
reiserfs_journal_tlen(reiserfs_jp_get_tlen (reiserfs_sb_jp(sb)),
reiserfs_jp_get_size (reiserfs_sb_jp(sb)),
fs->fs_blocksize, 0));
reiserfs_jp_set_tlen (reiserfs_sb_jp(sb),
reiserfs_journal_tlen(reiserfs_jp_get_tlen (reiserfs_sb_jp(sb)),
reiserfs_jp_get_size (reiserfs_sb_jp(sb)),
fs->fs_blocksize, 0));
}
if (reiserfs_jp_get_max_batch (reiserfs_sb_jp(sb)) !=
reiserfs_journal_batch(reiserfs_jp_get_tlen (reiserfs_sb_jp(sb))))
{
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong journal max "
"batch size occured (%lu), fixed (%d)\n",
reiserfs_jp_get_max_batch (reiserfs_sb_jp(sb)),
reiserfs_journal_batch(reiserfs_jp_get_tlen (reiserfs_sb_jp(sb))));
reiserfs_jp_set_max_batch (reiserfs_sb_jp(sb),
reiserfs_journal_batch(reiserfs_jp_get_tlen (reiserfs_sb_jp(sb))));
}
if (reiserfs_jp_get_commit_age (reiserfs_sb_jp(sb)) !=
reiserfs_journal_commit_age())
{
fsck_conditional_log (magic_was_found, "rebuild-sb: wrong journal "
"max commit age occured (%lu), fixed (%d)\n",
reiserfs_jp_get_commit_age (reiserfs_sb_jp(sb)), reiserfs_journal_commit_age());
reiserfs_jp_set_commit_age (reiserfs_sb_jp(sb), reiserfs_journal_commit_age());
}
if (reiserfs_jp_get_trans_age (reiserfs_sb_jp(sb)) != reiserfs_journal_trans_age()) {
fsck_log ("rebuild-sb: wrong journal transaction age occured (%u), "
"fixed (%u)\n", reiserfs_jp_get_trans_age (reiserfs_sb_jp(sb)),
reiserfs_journal_trans_age());
reiserfs_jp_set_trans_age (reiserfs_sb_jp(sb), reiserfs_journal_trans_age());
}
j_head = (struct reiserfs_journal_header *)(fs->fs_jh_bh->b_data);
if (standard_journal == 0) {
if (reiserfs_jp_get_magic (reiserfs_sb_jp(sb)) == 0 ||
reiserfs_jp_get_magic (reiserfs_sb_jp(sb)) == NEED_TUNE)
{
int magic;
magic = random();
fsck_log ("rebuild-sb: genarate the new journal magic (%d)\n", magic);
reiserfs_jp_set_magic (reiserfs_sb_jp(sb), magic);
reiserfs_jp_set_magic (&j_head->jh_journal, magic);
}
}
retval = memcmp(&j_head->jh_journal, reiserfs_sb_jp(sb), sizeof(reiserfs_journal_param_t));
if (retval) {
if (standard_journal == 1) {
fsck_log("\nrebuild-sb: You either have a corrupted journal or have just "
"changed\nthe start of the partition with some partition table editor. "
"If you are\nsure that the start of the partition is ok, rebuild the "
"journal header.\n");
} else if (!magic_was_found) {
fsck_log("\nrebuild-sb: journal header is not found. You either have "
"a corrupted,\nbad configured(device/offset/size), not available "
"journal or have just changed\nthe start of the journal partition "
"with some partition table editor. In the \ncase of corrupted "
"journal you need to use --no-journal-available. If you are\n"
"sure that the start of the partition is ok and journal is "
"available, rebuild\nthe journal header.\n");
}
if (standard_journal || !magic_was_found) {
if (!util_user_confirmed (stdout, "Do you want to rebuild the journal header? "
"(y/n)[n]: ", "y\n"))
{
exit(EXIT_USER);
} else
exit_code = EXIT_FIXED;
}
memcpy(&j_head->jh_journal, reiserfs_sb_jp(sb), sizeof(reiserfs_journal_param_t));
reiserfs_buffer_mkdirty(fs->fs_jh_bh);
reiserfs_buffer_write (fs->fs_jh_bh);
}
}
/* whether journal header contains params with the same dev, offset, size will be
checked in open_journal */
if (version == 1 || version == 3)
sb_size = REISERFS_SB_SIZE;
else
sb_size = REISERFS_SB_SIZE_V1;
if (ondisk_sb == NULL ||
memcmp(ondisk_sb, sb, sb_size - ((sb_size == REISERFS_SB_SIZE) ?
sizeof(fs->fs_ondisk_sb->s_unused) : 0)))
{
/* smth was changed in SB or a new one has been built */
reiserfs_sb_set_state (sb, reiserfs_sb_get_state (sb) | FS_ERROR);
if (ondisk_sb) {
/* if super_block was found, we keep sb in ondisk_sb */
fs->fs_ondisk_sb = ondisk_sb;
memcpy (ondisk_sb, sb, sb_size);
misc_freemem(sb);
}
fflush(stdout);
reiserfs_node_print (stderr, fs, fs->fs_super_bh);
if (util_user_confirmed (stderr, "Is this ok ? (y/n)[n]: ", "y\n")) {
reiserfs_buffer_mkuptodate (fs->fs_super_bh, 1);
reiserfs_buffer_mkdirty (fs->fs_super_bh);
reiserfs_buffer_write (fs->fs_super_bh);
fsck_progress ("The fs may still be unconsistent. Run reiserfsck --check.\n\n");
exit_code = EXIT_FIXED;
} else {
reiserfs_buffer_mkclean (fs->fs_super_bh);
fsck_progress ("Super block was not written\n");
}
} else {
reiserfs_node_print (stderr, fs, fs->fs_super_bh);
reiserfs_buffer_mkclean (fs->fs_super_bh);
fsck_progress ("\nSuper block seems to be correct\n\n");
}
exit(exit_code);
}
/* if (version == 0) {
reiserfs_buffer_close (fs->fs_super_bh);
misc_freemem (fs);
close (fs->fs_dev);
fs = NULL;
}
*/
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