int do_ext2ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *filename = "/";
int dev=0;
int part=1;
char *ep;
block_dev_desc_t *dev_desc=NULL;
int part_length;
if (argc < 3) {
printf ("Usage:\n%s\n", cmdtp->usage);
return(1);
}
dev = (int)simple_strtoul (argv[2], &ep, 16);
//printf("argv[1] = %s dev =%d",argv[1],dev);
dev_desc = get_dev(argv[1],dev);
if (dev_desc == NULL) {
printf ("\n** Block device %s %d not supported\n", argv[1], dev);
return(1);
}
if (*ep) {
if (*ep != ':') {
puts ("\n** Invalid boot device, use `dev[:part]' **\n");
return(1);
}
part = (int)simple_strtoul(++ep, NULL, 16);
}
if (argc == 4) {
filename = argv[3];
}
PRINTF("Using device %s %d:%d, directory: %s\n", argv[1], dev, part, filename);
if ((part_length = ext2fs_set_blk_dev(dev_desc, part)) == 0) {
printf ("** Bad partition - %s %d:%d **\n", argv[1], dev, part);
ext2fs_close();
return(1);
}
if (!ext2fs_mount(part_length)) {
printf ("** Bad ext2 partition or disk - %s %d:%d **\n", argv[1], dev, part);
ext2fs_close();
return(1);
}
if (ext2fs_ls (filename)) {
printf ("** Error ext2fs_ls() **\n");
ext2fs_close();
return(1);
};
ext2fs_close();
return(0);
}
static int get_resize_stats(struct resize_stats *stats, char *key_loc, char *blk_device)
{
errcode_t retval;
ext2_filsys fs;
ext2_filsys dup_fs;
io_manager io_ptr;
long long data_partition_size = 0;
io_ptr = unix_io_manager;
retval = ext2fs_open2(blk_device, NULL , 0, 0, 0, io_ptr, &fs);
if (retval) {
ERROR("Couldn't find valid filesystem superblock.\n");
return -1;
}
retval = ext2fs_dup_handle(fs, &dup_fs);
if (retval) {
ERROR("Couldn't duplicate filesys.\n");
ext2fs_close(fs);
return -1;
}
if((data_partition_size = get_block_size(blk_device)) < 0) {
ERROR("Get %s partition size fail.\n", blk_device);
ext2fs_close(fs);
ext2fs_free(dup_fs);
return -1;
}
ERROR("Size for partition(%s) is %lluK.\n", blk_device, data_partition_size / 1024);
ERROR("Size in superblock is %lluK.\n", (unsigned long long)fs->super->s_blocks_count * fs->blocksize / 1024);
if (!strcmp(key_loc, KEY_IN_FOOTER)){
data_partition_size -= RESERVE_SIZE;
ERROR("There is key in footer of partition(%s).\n", blk_device);
}
//adjust partition size to meet resizefs rule.
//resizefs will adjust partition size in some case.
retval = adjust_fs_size(dup_fs, &data_partition_size);
if (retval) {
ERROR("Couldn't adjust partition size.\n");
ext2fs_close(fs);
ext2fs_free(dup_fs);
return -1;
}
ERROR("Size will (maybe) resize to(after adjust) is %lluK.\n", data_partition_size / 1024);
if((unsigned int)(data_partition_size / fs->blocksize) == (unsigned int)(fs->super->s_blocks_count)) {
ERROR("The size of data already meet the request(size in superblock = size after adjust).\n");
stats->state = STATS_RESIZED;
}
stats->size = data_partition_size;
ext2fs_close(fs);
ext2fs_free(dup_fs);
return 0;
}
int extfs_mount(char *partition, char *mntbuf, char *fsbuf, int flags, char *mntinfo)
{
blk_t use_superblock=0;
int use_blocksize=0;
ext2_filsys fs;
int origextfstype;
char fsname[32];
msgprintf(MSG_DEBUG1, "extfs_mount(partition=[%s], mnt=[%s], fsbuf=[%s])\n", partition, mntbuf, fsbuf);
if (ext2fs_open(partition, EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES, use_superblock, use_blocksize, unix_io_manager, &fs)!=0)
{ msgprintf(MSG_DEBUG1, "ext2fs_open(%s) failed\n", partition);
return -1;
}
origextfstype=extfs_get_fstype_from_compat_flags((u64)fs->super->s_feature_compat,
(u64)fs->super->s_feature_incompat, (u64)fs->super->s_feature_ro_compat);
snprintf(fsname, sizeof(fsname), "%s", format_fstype(origextfstype));
msgprintf(MSG_VERB2, "the filesystem of [%s] type determined by the features is [%s]\n", partition, fsname);
ext2fs_close(fs);
if (strcmp(fsname, fsbuf)!=0)
{ msgprintf(MSG_DEBUG1, "extfs_mount: the filesystem requested [%s] does not match the filesystem detected [%s]\n", fsbuf, fsname);
return -1;
}
return generic_mount(partition, mntbuf, fsbuf, "user_xattr,acl", flags);
}
int main (int argc, char ** argv)
{
errcode_t retval;
ext2_filsys fs;
io_manager io_ptr;
initialize_ext2_error_table();
blkid_get_cache(&cache, NULL);
PRS(argc, argv);
#ifdef CONFIG_TESTIO_DEBUG
io_ptr = test_io_manager;
test_io_backing_manager = unix_io_manager;
#else
io_ptr = unix_io_manager;
#endif
retval = ext2fs_open (device_name, open_flag, 0, 0, io_ptr, &fs);
if (retval)
exit(1);
if (root_type)
get_root_type(fs);
return (ext2fs_close (fs) ? 1 : 0);
}
int main (int argc, char ** argv)
{
errcode_t retval;
ext2_filsys fs;
io_manager io_ptr;
add_error_table(&et_ext2_error_table);
blkid_get_cache(&cache, NULL);
PRS(argc, argv);
#ifdef CONFIG_TESTIO_DEBUG
if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
io_ptr = test_io_manager;
test_io_backing_manager = unix_io_manager;
} else
#endif
io_ptr = unix_io_manager;
retval = ext2fs_open (device_name, open_flag, 0, 0, io_ptr, &fs);
if (retval)
exit(1);
if (root_type)
get_root_type(fs);
remove_error_table(&et_ext2_error_table);
return (ext2fs_close (fs) ? 1 : 0);
}
main(int argc, char **argv)
{
errcode_t retval;
char *device_name;
ext2_filsys fs;
if (argc < 2) {
fprintf(stderr, "Usage: %s filesystem\n", argv[0]);
exit(1);
}
device_name = argv[1];
retval = ext2fs_open (device_name, EXT2_FLAG_RW, 0, 0,
unix_io_manager, &fs);
if (retval) {
com_err(argv[0], retval, "while opening %s", device_name);
exit(1);
}
retval = ext2fs_add_journal_inode(fs, 1024, 0);
if (retval) {
com_err(argv[0], retval, "while adding journal to %s",
device_name);
exit(1);
}
retval = ext2fs_flush(fs);
if (retval) {
printf("Warning, had trouble writing out superblocks.\n");
}
ext2fs_close(fs);
exit(0);
}
void * op_init (struct fuse_conn_info *conn)
{
errcode_t rc;
struct fuse_context *cntx=fuse_get_context();
struct extfs_data *e2data=cntx->private_data;
debugf("enter %s", e2data->device);
rc = ext2fs_open(e2data->device,
(e2data->readonly) ? 0 : EXT2_FLAG_RW,
0, 0, unix_io_manager, &e2data->e2fs);
if (rc) {
debugf("Error while trying to open %s", e2data->device);
exit(1);
}
#if 1
if (e2data->readonly != 1)
#endif
rc = ext2fs_read_bitmaps(e2data->e2fs);
if (rc) {
debugf("Error while reading bitmaps");
ext2fs_close(e2data->e2fs);
exit(1);
}
debugf("FileSystem %s", (e2data->e2fs->flags & EXT2_FLAG_RW) ? "Read&Write" : "ReadOnly");
debugf("leave");
return e2data;
}
int extfs_get_reqmntopt(char *partition, cstrlist *reqopt, cstrlist *badopt)
{
blk_t use_superblock=0;
int use_blocksize=0;
u32 defmntoptmask;
ext2_filsys fs;
if (!reqopt || !badopt)
return -1;
// check the "default mount options"
if (ext2fs_open(partition, EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES, use_superblock, use_blocksize, unix_io_manager, &fs)!=0)
return -1;
defmntoptmask=fs->super->s_default_mount_opts;
if (!(defmntoptmask&EXT2_DEFM_XATTR_USER))
strlist_add(reqopt, "user_xattr");
if (!(defmntoptmask&EXT2_DEFM_ACL))
strlist_add(reqopt, "acl");
strlist_add(badopt, "nouser_xattr");
strlist_add(badopt, "noacl");
ext2fs_close(fs);
return 0;
}
static void dir_partition_ext2_close(dir_data_t *dir_data)
{
struct ext2_dir_struct *ls=(struct ext2_dir_struct *)dir_data->private_dir_data;
ext2fs_close (ls->current_fs);
/* ext2fs_close call the close function that freed my_data */
free(ls);
}
static void
undelfs_shutdown (void)
{
if (fs)
ext2fs_close (fs);
fs = NULL;
MC_PTR_FREE (ext2_fname);
MC_PTR_FREE (delarray);
MC_PTR_FREE (block_buf);
}
int main (int argc, char *argv[])
{
errcode_t retval = 0;
int exit_value = 0;
int i;
ext2_filsys fs;
ext2_inode_scan scan;
ext2_ino_t ino;
struct ext2_inode inode;
printf(_("size of inode=%d\n"), sizeof(inode));
device_name = "/dev/hda3";
init_resource_track(&global_rtrack);
retval = ext2fs_open(device_name, 0,
0, 0, unix_io_manager, &fs);
if (retval) {
com_err(argv[0], retval, _("while trying to open %s"),
device_name);
exit(1);
}
retval = ext2fs_open_inode_scan(fs, 0, &scan);
if (retval) {
com_err(argv[0], retval, _("while opening inode scan"));
exit(1);
}
retval = ext2fs_get_next_inode(scan, &ino, &inode);
if (retval) {
com_err(argv[0], retval, _("while starting inode scan"));
exit(1);
}
while (ino) {
if (!inode.i_links_count)
goto next;
printf("%lu\n", inode.i_blocks);
next:
retval = ext2fs_get_next_inode(scan, &ino, &inode);
if (retval) {
com_err(argv[0], retval,
_("while doing inode scan"));
exit(1);
}
}
ext2fs_close(fs);
print_resource_track(&global_rtrack);
return exit_value;
}
static int
ext2lib_umount(fsi_t *fsi)
{
ext2_filsys *fs = fsip_fs_data(fsi);
if (ext2fs_close(*fs) != 0) {
free(fs);
errno = EINVAL;
return (-1);
}
free(fs);
return (0);
}
/**********************************************************************
Function :check_ext2_usb
Descriptor :
Input : part: partition
Output : none
return : 0: success
1: not ext2
2: ext2,but lost file
Notice :
**********************************************************************/
int check_ext2_usb(int part)
{
int nfile;
char *filename_kernel = "vmlinux.ub";
int dev=0;
block_dev_desc_t *dev_desc=NULL;
int part_length;
dev_desc = get_dev("usb",0); //first partition
if (dev_desc == NULL)
{
printf ("[error]: Block dev not supported\n");
return(1);
}
part_length = ext2fs_set_blk_dev(dev_desc, part);
if (part_length == 0)
{
ext2fs_close();
return(1);
}
if (!ext2fs_mount(part_length)) //if ext2 type
{
ext2fs_close();
return(1);
}
if (ext2fs_open(filename_kernel) < 0)
{
printf("[error]:Kernel not found %s ...\n", filename_kernel);
ext2fs_close();
return(2);
}
ext2fs_close();
return(0);
}
static void
undelfs_shutdown (void)
{
if (fs)
ext2fs_close (fs);
fs = NULL;
g_free (ext2_fname);
ext2_fname = NULL;
g_free (delarray);
delarray = NULL;
g_free (block_buf);
block_buf = NULL;
}
long
open_filesystem(char *name, ext2_filsys *fs, ext2_ino_t *root, int rw_mode)
{
int retval;
int closeval;
if ((retval = ext2fs_open(name, (rw_mode) ? EXT2_FLAG_RW : 0, 0, 0,
unix_io_manager, fs)))
{
fprintf(stderr, "%s\n", error_message(retval));
*fs = NULL;
return retval;
}
if ((retval = ext2fs_read_inode_bitmap(*fs)))
{
fprintf(stderr, "%s\n", error_message(retval));
if ((closeval = ext2fs_close(*fs)))
fputs(error_message(closeval), stderr);
*fs = NULL;
return retval;
}
if ((retval = ext2fs_read_block_bitmap(*fs)))
{
fprintf(stderr, "%s\n", error_message(retval));
if ((closeval = ext2fs_close(*fs)))
fputs(error_message(closeval), stderr);
*fs = NULL;
return retval;
}
*root = EXT2_ROOT_INO;
return(0);
}
void preenhalt(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
if (!(ctx->options & E2F_OPT_PREEN))
return;
fprintf(stderr, _("\n\n%s: UNEXPECTED INCONSISTENCY; "
"RUN fsck MANUALLY.\n\t(i.e., without -a or -p options)\n"),
ctx->device_name);
if (fs != NULL) {
fs->super->s_state |= EXT2_ERROR_FS;
ext2fs_mark_super_dirty(fs);
ext2fs_close(fs);
}
exit(FSCK_UNCORRECTED);
}
const char *ext2_uuid(char *device)
{
errcode_t e2fserr;
ext2_filsys fs;
const char *uuid;
e2fserr = ext2fs_open(device, 0, 0, 0, unix_io_manager, &fs);
if (e2fserr) {
uuid = "<none>";
}
else {
uuid = uuid2str(fs->super->s_uuid);
e2fserr = ext2fs_close(fs);
}
return uuid;
}
int main(int argc, char **argv) {
ext2_filsys fs;
ext2fs_generic_bitmap bitmap;
size_t size;
ext2fs_open(argv[1], 0, 0, 0, unix_io_manager, &fs);
ext2fs_read_bitmaps(fs);
ext2fs_get_mem(sizeof(struct ext2fs_struct_generic_bitmap), &bitmap);
memcpy(bitmap, fs->block_map, sizeof(struct ext2fs_struct_generic_bitmap));
size = (size_t) (((bitmap->real_end - bitmap->start) / 8) + 1);
printf("sBlock: %u\n", fs->blocksize);
printf("sBitmap: %u\n", bitmap->real_end - bitmap->start + 1);
printf("bitmap: ");
fwrite(bitmap->bitmap, 1, size, stdout);
ext2fs_close(fs);
return 0;
}
int extfs_test(char *partition, int extfstype) // returns true if it's that sort of filesystem
{
blk_t use_superblock=0;
int use_blocksize=0;
int extfstypedetected;
ext2_filsys fs;
if (ext2fs_open(partition, EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES, use_superblock, use_blocksize, unix_io_manager, &fs)!=0)
return false;
extfstypedetected=extfs_get_fstype_from_compat_flags((u64)fs->super->s_feature_compat,
(u64)fs->super->s_feature_incompat, (u64)fs->super->s_feature_ro_compat);
msgprintf(MSG_DEBUG1, "the filesystem type determined by the extfs features is [%s]\n", format_fstype(extfstypedetected));
ext2fs_close(fs);
// if detected is what is tested, say yes
return (extfstypedetected==extfstype);
}
static void close_filesystem(NOARGS)
{
int retval;
if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
retval = ext2fs_write_inode_bitmap(current_fs);
if (retval)
com_err("ext2fs_write_inode_bitmap", retval, 0);
}
if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
retval = ext2fs_write_block_bitmap(current_fs);
if (retval)
com_err("ext2fs_write_block_bitmap", retval, 0);
}
retval = ext2fs_close(current_fs);
if (retval)
com_err("ext2fs_close", retval, 0);
current_fs = NULL;
return;
}
int e2fsck_run_ext3_journal(e2fsck_t ctx)
{
io_manager io_ptr = ctx->fs->io->manager;
int blocksize = ctx->fs->blocksize;
errcode_t retval, recover_retval;
printf(_("%s: recovering journal\n"), ctx->device_name);
if (ctx->options & E2F_OPT_READONLY) {
printf(_("%s: won't do journal recovery while read-only\n"),
ctx->device_name);
return EXT2_ET_FILE_RO;
}
if (ctx->fs->flags & EXT2_FLAG_DIRTY)
ext2fs_flush(ctx->fs); /* Force out any modifications */
recover_retval = recover_ext3_journal(ctx);
/*
* Reload the filesystem context to get up-to-date data from disk
* because journal recovery will change the filesystem under us.
*/
ext2fs_close(ctx->fs);
retval = ext2fs_open(ctx->filesystem_name, EXT2_FLAG_RW,
ctx->superblock, blocksize, io_ptr,
&ctx->fs);
if (retval) {
com_err(ctx->program_name, retval,
_("while trying to re-open %s"),
ctx->device_name);
fatal_error(ctx, 0);
}
ctx->fs->priv_data = ctx;
ctx->fs->now = ctx->now;
ctx->fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
/* Set the superblock flags */
e2fsck_clear_recover(ctx, recover_retval);
return recover_retval;
}
/* function taken from anaconda/isys.c */
static PyObject *
_sysutils_e2fslabel(PyObject * s, PyObject * args)
{
char * device;
ext2_filsys fsys;
char buf[50];
int rc;
if (!PyArg_ParseTuple(args, "s", &device)) return NULL;
rc = ext2fs_open(device, EXT2_FLAG_FORCE, 0, 0, unix_io_manager, &fsys);
if (rc) {
Py_INCREF(Py_None);
return Py_None;
}
memset(buf, 0, sizeof(buf));
strncpy(buf, fsys->super->s_volume_name, sizeof(fsys->super->s_volume_name));
ext2fs_close(fsys);
return Py_BuildValue("s", buf);
}
void make_journal_device(char *journal_device, ext2_filsys fs, int quiet, int force)
{
errcode_t retval;
ext2_filsys jfs;
io_manager io_ptr;
check_plausibility(journal_device, force);
check_mount(journal_device, force, "journal");
io_ptr = unix_io_manager;
retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
EXT2_FLAG_JOURNAL_DEV_OK, 0,
fs->blocksize, io_ptr, &jfs);
if (retval)
bb_error_msg_and_die("can't journal device %s", journal_device);
if (!quiet)
printf("Adding journal to device %s: ", journal_device);
fflush(stdout);
retval = ext2fs_add_journal_device(fs, jfs);
if (retval)
bb_error_msg_and_die("\nFailed to add journal to device %s", journal_device);
if (!quiet)
puts("done");
ext2fs_close(jfs);
}
int main (int argc, char ** argv)
{
errcode_t retval;
ext2_filsys fs;
int print_badblocks = 0;
blk64_t use_superblock = 0;
int use_blocksize = 0;
int image_dump = 0;
int force = 0;
int flags;
int header_only = 0;
int c;
#ifdef ENABLE_NLS
setlocale(LC_MESSAGES, "");
setlocale(LC_CTYPE, "");
bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
textdomain(NLS_CAT_NAME);
set_com_err_gettext(gettext);
#endif
add_error_table(&et_ext2_error_table);
fprintf (stderr, "dumpe2fs %s (%s)\n", E2FSPROGS_VERSION,
E2FSPROGS_DATE);
if (argc && *argv)
program_name = *argv;
while ((c = getopt (argc, argv, "bfhixVo:")) != EOF) {
switch (c) {
case 'b':
print_badblocks++;
break;
case 'f':
force++;
break;
case 'h':
header_only++;
break;
case 'i':
image_dump++;
break;
case 'o':
parse_extended_opts(optarg, &use_superblock,
&use_blocksize);
break;
case 'V':
/* Print version number and exit */
fprintf(stderr, _("\tUsing %s\n"),
error_message(EXT2_ET_BASE));
exit(0);
case 'x':
hex_format++;
break;
default:
usage();
}
}
if (optind > argc - 1)
usage();
device_name = argv[optind++];
flags = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
if (force)
flags |= EXT2_FLAG_FORCE;
if (image_dump)
flags |= EXT2_FLAG_IMAGE_FILE;
if (use_superblock && !use_blocksize) {
for (use_blocksize = EXT2_MIN_BLOCK_SIZE;
use_blocksize <= EXT2_MAX_BLOCK_SIZE;
use_blocksize *= 2) {
retval = ext2fs_open (device_name, flags,
use_superblock,
use_blocksize, unix_io_manager,
&fs);
if (!retval)
break;
}
} else
retval = ext2fs_open (device_name, flags, use_superblock,
use_blocksize, unix_io_manager, &fs);
if (retval) {
com_err (program_name, retval, _("while trying to open %s"),
device_name);
printf("%s", _("Couldn't find valid filesystem superblock.\n"));
exit (1);
}
fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
blocks64 = 1;
if (print_badblocks) {
list_bad_blocks(fs, 1);
} else {
list_super (fs->super);
if (fs->super->s_feature_incompat &
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
print_journal_information(fs);
ext2fs_close(fs);
exit(0);
}
if ((fs->super->s_feature_compat &
EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
(fs->super->s_journal_inum != 0))
print_inline_journal_information(fs);
list_bad_blocks(fs, 0);
if (header_only) {
ext2fs_close (fs);
exit (0);
}
retval = ext2fs_read_bitmaps (fs);
list_desc (fs);
if (retval) {
printf(_("\n%s: %s: error reading bitmaps: %s\n"),
program_name, device_name,
error_message(retval));
}
}
ext2fs_close (fs);
remove_error_table(&et_ext2_error_table);
exit (0);
}
int main (int argc, char ** argv)
{
errcode_t retval;
ext2_filsys fs;
int c;
int flags = 0;
int flush = 0;
int force = 0;
int io_flags = 0;
int force_min_size = 0;
int print_min_size = 0;
int fd, ret;
blk64_t new_size = 0;
blk64_t max_size = 0;
blk64_t min_size = 0;
io_manager io_ptr;
char *new_size_str = 0;
int use_stride = -1;
ext2fs_struct_stat st_buf;
__s64 new_file_size;
unsigned int sys_page_size = 4096;
long sysval;
int len, mount_flags;
char *mtpt;
#ifdef ENABLE_NLS
setlocale(LC_MESSAGES, "");
setlocale(LC_CTYPE, "");
bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
textdomain(NLS_CAT_NAME);
set_com_err_gettext(gettext);
#endif
add_error_table(&et_ext2_error_table);
fprintf (stderr, "resize2fs %s (%s)\n",
E2FSPROGS_VERSION, E2FSPROGS_DATE);
if (argc && *argv)
program_name = *argv;
while ((c = getopt (argc, argv, "d:fFhMPpS:")) != EOF) {
switch (c) {
case 'h':
usage(program_name);
break;
case 'f':
force = 1;
break;
case 'F':
flush = 1;
break;
case 'M':
force_min_size = 1;
break;
case 'P':
print_min_size = 1;
break;
case 'd':
flags |= atoi(optarg);
break;
case 'p':
flags |= RESIZE_PERCENT_COMPLETE;
break;
case 'S':
use_stride = atoi(optarg);
break;
default:
usage(program_name);
}
}
if (optind == argc)
usage(program_name);
device_name = argv[optind++];
if (optind < argc)
new_size_str = argv[optind++];
if (optind < argc)
usage(program_name);
io_options = strchr(device_name, '?');
if (io_options)
*io_options++ = 0;
/*
* Figure out whether or not the device is mounted, and if it is
* where it is mounted.
*/
len=80;
while (1) {
mtpt = malloc(len);
if (!mtpt)
return ENOMEM;
mtpt[len-1] = 0;
retval = ext2fs_check_mount_point(device_name, &mount_flags,
mtpt, len);
if (retval) {
com_err("ext2fs_check_mount_point", retval,
_("while determining whether %s is mounted."),
device_name);
exit(1);
}
if (!(mount_flags & EXT2_MF_MOUNTED) || (mtpt[len-1] == 0))
break;
free(mtpt);
len = 2 * len;
}
fd = ext2fs_open_file(device_name, O_RDWR, 0);
if (fd < 0) {
com_err("open", errno, _("while opening %s"),
device_name);
exit(1);
}
ret = ext2fs_fstat(fd, &st_buf);
if (ret < 0) {
com_err("open", errno,
_("while getting stat information for %s"),
device_name);
exit(1);
}
if (flush) {
retval = ext2fs_sync_device(fd, 1);
if (retval) {
com_err(argv[0], retval,
_("while trying to flush %s"),
device_name);
exit(1);
}
}
if (!S_ISREG(st_buf.st_mode )) {
close(fd);
fd = -1;
}
#ifdef CONFIG_TESTIO_DEBUG
if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
io_ptr = test_io_manager;
test_io_backing_manager = unix_io_manager;
} else
#endif
io_ptr = unix_io_manager;
if (!(mount_flags & EXT2_MF_MOUNTED))
io_flags = EXT2_FLAG_RW | EXT2_FLAG_EXCLUSIVE;
io_flags |= EXT2_FLAG_64BITS;
retval = ext2fs_open2(device_name, io_options, io_flags,
0, 0, io_ptr, &fs);
if (retval) {
com_err (program_name, retval, _("while trying to open %s"),
device_name);
printf (_("Couldn't find valid filesystem superblock.\n"));
exit (1);
}
/*
* Check for compatibility with the feature sets. We need to
* be more stringent than ext2fs_open().
*/
if (fs->super->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) {
com_err(program_name, EXT2_ET_UNSUPP_FEATURE,
"(%s)", device_name);
exit(1);
}
min_size = calculate_minimum_resize_size(fs);
if (print_min_size) {
if (!force && ((fs->super->s_state & EXT2_ERROR_FS) ||
((fs->super->s_state & EXT2_VALID_FS) == 0))) {
fprintf(stderr,
_("Please run 'e2fsck -f %s' first.\n\n"),
device_name);
exit(1);
}
printf(_("Estimated minimum size of the filesystem: %llu\n"),
min_size);
exit(0);
}
/* Determine the system page size if possible */
#ifdef HAVE_SYSCONF
#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
#define _SC_PAGESIZE _SC_PAGE_SIZE
#endif
#ifdef _SC_PAGESIZE
sysval = sysconf(_SC_PAGESIZE);
if (sysval > 0)
sys_page_size = sysval;
#endif /* _SC_PAGESIZE */
#endif /* HAVE_SYSCONF */
/*
* Get the size of the containing partition, and use this for
* defaults and for making sure the new filesystem doesn't
* exceed the partition size.
*/
retval = ext2fs_get_device_size2(device_name, fs->blocksize,
&max_size);
if (retval) {
com_err(program_name, retval,
_("while trying to determine filesystem size"));
exit(1);
}
if (force_min_size)
new_size = min_size;
else if (new_size_str) {
new_size = parse_num_blocks2(new_size_str,
fs->super->s_log_block_size);
if (new_size == 0) {
com_err(program_name, 0,
_("Invalid new size: %s\n"), new_size_str);
exit(1);
}
} else {
new_size = max_size;
/* Round down to an even multiple of a pagesize */
if (sys_page_size > fs->blocksize)
new_size &= ~((sys_page_size / fs->blocksize)-1);
}
if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
EXT4_FEATURE_INCOMPAT_64BIT)) {
/* Take 16T down to 2^32-1 blocks */
if (new_size == (1ULL << 32))
new_size--;
else if (new_size > (1ULL << 32)) {
com_err(program_name, 0,
_("New size too large to be "
"expressed in 32 bits\n"));
exit(1);
}
}
if (!force && new_size < min_size) {
com_err(program_name, 0,
_("New size smaller than minimum (%llu)\n"), min_size);
exit(1);
}
if (use_stride >= 0) {
if (use_stride >= (int) fs->super->s_blocks_per_group) {
com_err(program_name, 0,
_("Invalid stride length"));
exit(1);
}
fs->stride = fs->super->s_raid_stride = use_stride;
ext2fs_mark_super_dirty(fs);
} else
determine_fs_stride(fs);
/*
* If we are resizing a plain file, and it's not big enough,
* automatically extend it in a sparse fashion by writing the
* last requested block.
*/
new_file_size = ((__u64) new_size) * fs->blocksize;
if ((__u64) new_file_size >
(((__u64) 1) << (sizeof(st_buf.st_size)*8 - 1)) - 1)
fd = -1;
if ((new_file_size > st_buf.st_size) &&
(fd > 0)) {
if ((ext2fs_llseek(fd, new_file_size-1, SEEK_SET) >= 0) &&
(write(fd, "0", 1) == 1))
max_size = new_size;
}
if (!force && (new_size > max_size)) {
fprintf(stderr, _("The containing partition (or device)"
" is only %llu (%dk) blocks.\nYou requested a new size"
" of %llu blocks.\n\n"), max_size,
fs->blocksize / 1024, new_size);
exit(1);
}
if (new_size == ext2fs_blocks_count(fs->super)) {
fprintf(stderr, _("The filesystem is already %llu blocks "
"long. Nothing to do!\n\n"), new_size);
exit(0);
}
if (mount_flags & EXT2_MF_MOUNTED) {
retval = online_resize_fs(fs, mtpt, &new_size, flags);
} else {
if (!force && ((fs->super->s_lastcheck < fs->super->s_mtime) ||
(fs->super->s_state & EXT2_ERROR_FS) ||
((fs->super->s_state & EXT2_VALID_FS) == 0))) {
fprintf(stderr,
_("Please run 'e2fsck -f %s' first.\n\n"),
device_name);
exit(1);
}
/*
* XXXX The combination of flex_bg and !resize_inode
* causes major problems for resize2fs, since when the
* group descriptors grow in size this can potentially
* require multiple inode tables to be moved aside to
* make room, and resize2fs chokes rather badly in
* this scenario. It's a rare combination, except
* when a filesystem is expanded more than a certain
* size, so for now, we'll just prohibit that
* combination. This is something we should fix
* eventually, though.
*/
if ((fs->super->s_feature_incompat &
EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
!(fs->super->s_feature_compat &
EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
com_err(program_name, 0, _("%s: The combination of "
"flex_bg and\n\t!resize_inode features "
"is not supported by resize2fs.\n"),
device_name);
exit(1);
}
printf(_("Resizing the filesystem on "
"%s to %llu (%dk) blocks.\n"),
device_name, new_size, fs->blocksize / 1024);
retval = resize_fs(fs, &new_size, flags,
((flags & RESIZE_PERCENT_COMPLETE) ?
resize_progress_func : 0));
}
free(mtpt);
if (retval) {
com_err(program_name, retval, _("while trying to resize %s"),
device_name);
fprintf(stderr,
_("Please run 'e2fsck -fy %s' to fix the filesystem\n"
"after the aborted resize operation.\n"),
device_name);
ext2fs_close(fs);
exit(1);
}
printf(_("The filesystem on %s is now %llu blocks long.\n\n"),
device_name, new_size);
if ((st_buf.st_size > new_file_size) &&
(fd > 0)) {
#ifdef HAVE_FTRUNCATE64
retval = ftruncate64(fd, new_file_size);
#else
retval = 0;
/* Only truncate if new_file_size doesn't overflow off_t */
if (((off_t) new_file_size) == new_file_size)
retval = ftruncate(fd, (off_t) new_file_size);
#endif
if (retval)
com_err(program_name, retval,
_("while trying to truncate %s"),
device_name);
}
if (fd > 0)
close(fd);
remove_error_table(&et_ext2_error_table);
return (0);
}
static void PRS(int argc, char *argv[])
{
int b, c;
int size;
char *tmp, *tmp2;
int blocksize = 0;
int inode_ratio = 0;
int inode_size = 0;
double reserved_ratio = 5.0;
int sector_size = 0;
int show_version_only = 0;
ext2_ino_t num_inodes = 0;
errcode_t retval;
char * oldpath = getenv("PATH");
char * extended_opts = 0;
const char * fs_type = 0;
blk_t dev_size;
#ifdef __linux__
struct utsname ut;
#endif
long sysval;
int s_opt = -1, r_opt = -1;
char *fs_features = 0;
int use_bsize;
/* Update our PATH to include /sbin */
if (oldpath) {
char *newpath;
newpath = malloc(sizeof (PATH_SET) + 1 + strlen (oldpath));
strcpy (newpath, PATH_SET);
strcat (newpath, ":");
strcat (newpath, oldpath);
putenv (newpath);
} else
putenv (PATH_SET);
tmp = getenv("MKE2FS_SYNC");
if (tmp)
sync_kludge = atoi(tmp);
/* Determine the system page size if possible */
#ifdef HAVE_SYSCONF
#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
#define _SC_PAGESIZE _SC_PAGE_SIZE
#endif
#ifdef _SC_PAGESIZE
sysval = sysconf(_SC_PAGESIZE);
if (sysval > 0)
sys_page_size = sysval;
#endif /* _SC_PAGESIZE */
#endif /* HAVE_SYSCONF */
if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
config_fn[0] = tmp;
profile_set_syntax_err_cb(syntax_err_report);
profile_init(config_fn, &profile);
setbuf(stdout, NULL);
setbuf(stderr, NULL);
initialize_ext2_error_table();
memset(&fs_param, 0, sizeof(struct ext2_super_block));
fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
#ifdef __linux__
if (uname(&ut)) {
perror("uname");
exit(1);
}
linux_version_code = parse_version_number(ut.release);
if (linux_version_code && linux_version_code < (2*65536 + 2*256))
fs_param.s_rev_level = 0;
#endif
if (argc && *argv) {
program_name = get_progname(*argv);
/* If called as mkfs.ext3, create a journal inode */
if (!strcmp(program_name, "mkfs.ext3"))
journal_size = -1;
}
while ((c = getopt (argc, argv,
"b:cf:g:i:jl:m:no:qr:s:tvE:FI:J:L:M:N:O:R:ST:V")) != EOF) {
switch (c) {
case 'b':
blocksize = strtol(optarg, &tmp, 0);
b = (blocksize > 0) ? blocksize : -blocksize;
if (b < EXT2_MIN_BLOCK_SIZE ||
b > EXT2_MAX_BLOCK_SIZE || *tmp) {
com_err(program_name, 0,
_("invalid block size - %s"), optarg);
exit(1);
}
if (blocksize > 4096)
fprintf(stderr, _("Warning: blocksize %d not "
"usable on most systems.\n"),
blocksize);
if (blocksize > 0)
fs_param.s_log_block_size =
int_log2(blocksize >>
EXT2_MIN_BLOCK_LOG_SIZE);
break;
case 'c': /* Check for bad blocks */
case 't': /* deprecated */
cflag++;
break;
case 'f':
size = strtoul(optarg, &tmp, 0);
if (size < EXT2_MIN_BLOCK_SIZE ||
size > EXT2_MAX_BLOCK_SIZE || *tmp) {
com_err(program_name, 0,
_("invalid fragment size - %s"),
optarg);
exit(1);
}
fs_param.s_log_frag_size =
int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
fprintf(stderr, _("Warning: fragments not supported. "
"Ignoring -f option\n"));
break;
case 'g':
fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
if (*tmp) {
com_err(program_name, 0,
_("Illegal number for blocks per group"));
exit(1);
}
if ((fs_param.s_blocks_per_group % 8) != 0) {
com_err(program_name, 0,
_("blocks per group must be multiple of 8"));
exit(1);
}
break;
case 'i':
inode_ratio = strtoul(optarg, &tmp, 0);
if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
*tmp) {
com_err(program_name, 0,
_("invalid inode ratio %s (min %d/max %d)"),
optarg, EXT2_MIN_BLOCK_SIZE,
EXT2_MAX_BLOCK_SIZE);
exit(1);
}
break;
case 'J':
parse_journal_opts(optarg);
break;
case 'j':
if (!journal_size)
journal_size = -1;
break;
case 'l':
bad_blocks_filename = malloc(strlen(optarg)+1);
if (!bad_blocks_filename) {
com_err(program_name, ENOMEM,
_("in malloc for bad_blocks_filename"));
exit(1);
}
strcpy(bad_blocks_filename, optarg);
break;
case 'm':
reserved_ratio = strtod(optarg, &tmp);
if (reserved_ratio > 50 || *tmp) {
com_err(program_name, 0,
_("invalid reserved blocks percent - %s"),
optarg);
exit(1);
}
break;
case 'n':
noaction++;
break;
case 'o':
creator_os = optarg;
break;
case 'q':
quiet = 1;
break;
case 'r':
r_opt = strtoul(optarg, &tmp, 0);
if (*tmp) {
com_err(program_name, 0,
_("bad revision level - %s"), optarg);
exit(1);
}
fs_param.s_rev_level = r_opt;
break;
case 's': /* deprecated */
s_opt = atoi(optarg);
break;
#ifdef EXT2_DYNAMIC_REV
case 'I':
inode_size = strtoul(optarg, &tmp, 0);
if (*tmp) {
com_err(program_name, 0,
_("invalid inode size - %s"), optarg);
exit(1);
}
break;
#endif
case 'v':
verbose = 1;
break;
case 'F':
force = 1;
break;
case 'L':
volume_label = optarg;
break;
case 'M':
mount_dir = optarg;
break;
case 'N':
num_inodes = strtoul(optarg, &tmp, 0);
if (*tmp) {
com_err(program_name, 0,
_("bad num inodes - %s"), optarg);
exit(1);
}
break;
case 'O':
fs_features = optarg;
break;
case 'E':
case 'R':
extended_opts = optarg;
break;
case 'S':
super_only = 1;
break;
case 'T':
fs_type = optarg;
break;
case 'V':
/* Print version number and exit */
show_version_only++;
break;
default:
usage();
}
}
if ((optind == argc) && !show_version_only)
usage();
device_name = argv[optind++];
if (!quiet || show_version_only)
fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
E2FSPROGS_DATE);
if (show_version_only) {
fprintf(stderr, _("\tUsing %s\n"),
error_message(EXT2_ET_BASE));
exit(0);
}
/*
* If there's no blocksize specified and there is a journal
* device, use it to figure out the blocksize
*/
if (blocksize <= 0 && journal_device) {
ext2_filsys jfs;
io_manager io_ptr;
#ifdef CONFIG_TESTIO_DEBUG
io_ptr = test_io_manager;
test_io_backing_manager = unix_io_manager;
#else
io_ptr = unix_io_manager;
#endif
retval = ext2fs_open(journal_device,
EXT2_FLAG_JOURNAL_DEV_OK, 0,
0, io_ptr, &jfs);
if (retval) {
com_err(program_name, retval,
_("while trying to open journal device %s\n"),
journal_device);
exit(1);
}
if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
com_err(program_name, 0,
_("Journal dev blocksize (%d) smaller than "
"minimum blocksize %d\n"), jfs->blocksize,
-blocksize);
exit(1);
}
blocksize = jfs->blocksize;
fs_param.s_log_block_size =
int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
ext2fs_close(jfs);
}
static void open_filesystem(char *device, int open_flags, blk_t superblock,
blk_t blocksize, int catastrophic,
char *data_filename)
{
int retval;
io_channel data_io = 0;
if (superblock != 0 && blocksize == 0) {
com_err(device, 0, "if you specify the superblock, you must also specify the block size");
current_fs = NULL;
return;
}
if (data_filename) {
if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
com_err(device, 0,
"The -d option is only valid when reading an e2image file");
current_fs = NULL;
return;
}
retval = unix_io_manager->open(data_filename, 0, &data_io);
if (retval) {
com_err(data_filename, 0, "while opening data source");
current_fs = NULL;
return;
}
}
if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
com_err(device, 0,
"opening read-only because of catastrophic mode");
open_flags &= ~EXT2_FLAG_RW;
}
retval = ext2fs_open(device, open_flags, superblock, blocksize,
unix_io_manager, ¤t_fs);
if (retval) {
com_err(device, retval, "while opening filesystem");
current_fs = NULL;
return;
}
if (catastrophic)
com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
else {
retval = ext2fs_read_inode_bitmap(current_fs);
if (retval) {
com_err(device, retval, "while reading inode bitmap");
goto errout;
}
retval = ext2fs_read_block_bitmap(current_fs);
if (retval) {
com_err(device, retval, "while reading block bitmap");
goto errout;
}
}
if (data_io) {
retval = ext2fs_set_data_io(current_fs, data_io);
if (retval) {
com_err(device, retval,
"while setting data source");
goto errout;
}
}
root = cwd = EXT2_ROOT_INO;
return;
errout:
retval = ext2fs_close(current_fs);
if (retval)
com_err(device, retval, "while trying to close filesystem");
current_fs = NULL;
}
/*
* This routine checks to see if a filesystem can be skipped; if so,
* it will exit with E2FSCK_OK. Under some conditions it will print a
* message explaining why a check is being forced.
*/
static void check_if_skip(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
const char *reason = NULL;
unsigned int reason_arg = 0;
long next_check;
int batt = is_on_batt();
int defer_check_on_battery;
int broken_system_clock;
time_t lastcheck;
profile_get_boolean(ctx->profile, "options", "broken_system_clock",
0, 0, &broken_system_clock);
if (ctx->flags & E2F_FLAG_TIME_INSANE)
broken_system_clock = 1;
profile_get_boolean(ctx->profile, "options",
"defer_check_on_battery", 0, 1,
&defer_check_on_battery);
if (!defer_check_on_battery)
batt = 0;
if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
return;
if (ctx->options & E2F_OPT_JOURNAL_ONLY)
goto skip;
lastcheck = fs->super->s_lastcheck;
if (lastcheck > ctx->now)
lastcheck -= ctx->time_fudge;
if ((fs->super->s_state & EXT2_ERROR_FS) ||
!ext2fs_test_valid(fs))
reason = _(" contains a file system with errors");
else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
reason = _(" was not cleanly unmounted");
else if (check_backup_super_block(ctx))
reason = _(" primary superblock features different from backup");
else if ((fs->super->s_max_mnt_count > 0) &&
(fs->super->s_mnt_count >=
(unsigned) fs->super->s_max_mnt_count)) {
reason = _(" has been mounted %u times without being checked");
reason_arg = fs->super->s_mnt_count;
if (batt && (fs->super->s_mnt_count <
(unsigned) fs->super->s_max_mnt_count*2))
reason = 0;
} else if (!broken_system_clock && fs->super->s_checkinterval &&
(ctx->now < lastcheck)) {
reason = _(" has filesystem last checked time in the future");
if (batt)
reason = 0;
} else if (!broken_system_clock && fs->super->s_checkinterval &&
((ctx->now - lastcheck) >=
((time_t) fs->super->s_checkinterval))) {
reason = _(" has gone %u days without being checked");
reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
if (batt && ((ctx->now - fs->super->s_lastcheck) <
fs->super->s_checkinterval*2))
reason = 0;
}
if (reason) {
fputs(ctx->device_name, stdout);
printf(reason, reason_arg);
fputs(_(", check forced.\n"), stdout);
return;
}
printf(_("%s: clean, %u/%u files, %u/%u blocks"), ctx->device_name,
fs->super->s_inodes_count - fs->super->s_free_inodes_count,
fs->super->s_inodes_count,
fs->super->s_blocks_count - fs->super->s_free_blocks_count,
fs->super->s_blocks_count);
next_check = 100000;
if (fs->super->s_max_mnt_count > 0) {
next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
if (next_check <= 0)
next_check = 1;
}
if (!broken_system_clock && fs->super->s_checkinterval &&
((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
next_check = 1;
if (next_check <= 5) {
if (next_check == 1) {
if (batt)
fputs(_(" (check deferred; on battery)"),
stdout);
else
fputs(_(" (check after next mount)"), stdout);
} else
printf(_(" (check in %ld mounts)"), next_check);
}
fputc('\n', stdout);
skip:
ext2fs_close(fs);
ctx->fs = NULL;
e2fsck_free_context(ctx);
exit(FSCK_OK);
}
int main (int argc, char *argv[])
{
errcode_t retval = 0, retval2 = 0, orig_retval = 0;
int exit_value = FSCK_OK;
ext2_filsys fs = 0;
io_manager io_ptr;
struct ext2_super_block *sb;
const char *lib_ver_date;
int my_ver, lib_ver;
e2fsck_t ctx;
blk_t orig_superblock;
struct problem_context pctx;
int flags, run_result;
int journal_size;
int sysval, sys_page_size = 4096;
__u32 features[3];
char *cp;
klog_init();
E2F_DBG_INFO("e2fsck start...");
#ifdef E2FSCK_PIPE_DEBUG_
memset(pipe_msg_temp, 0, MSG_LEN);
memcpy(pipe_msg_temp, argv[2], strlen(argv[2]));
pipe_open();
pipe_write(C_IN_START);
#endif
clear_problem_context(&pctx);
#ifdef MTRACE
mtrace();
#endif
#ifdef MCHECK
mcheck(0);
#endif
#ifdef ENABLE_NLS
setlocale(LC_MESSAGES, "");
setlocale(LC_CTYPE, "");
bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
textdomain(NLS_CAT_NAME);
#endif
my_ver = ext2fs_parse_version_string(my_ver_string);
lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
if (my_ver > lib_ver) {
fprintf( stderr, _("Error: ext2fs library version "
"out of date!\n"));
show_version_only++;
}
retval = PRS(argc, argv, &ctx);
if (retval) {
com_err("e2fsck", retval,
_("while trying to initialize program"));
exit(FSCK_ERROR);
}
reserve_stdio_fds();
init_resource_track(&ctx->global_rtrack, NULL);
if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
fprintf(stderr, "e2fsck %s (%s)\n", my_ver_string,
my_ver_date);
if (show_version_only) {
fprintf(stderr, _("\tUsing %s, %s\n"),
error_message(EXT2_ET_BASE), lib_ver_date);
exit(FSCK_OK);
}
check_mount(ctx);
if (!(ctx->options & E2F_OPT_PREEN) &&
!(ctx->options & E2F_OPT_NO) &&
!(ctx->options & E2F_OPT_YES)) {
if (!ctx->interactive)
fatal_error(ctx,
_("need terminal for interactive repairs"));
}
ctx->superblock = ctx->use_superblock;
restart:
#ifdef CONFIG_TESTIO_DEBUG
if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
io_ptr = test_io_manager;
test_io_backing_manager = unix_io_manager;
} else
#endif
io_ptr = unix_io_manager;
flags = EXT2_FLAG_NOFREE_ON_ERROR;
if ((ctx->options & E2F_OPT_READONLY) == 0)
flags |= EXT2_FLAG_RW;
if ((ctx->mount_flags & EXT2_MF_MOUNTED) == 0)
flags |= EXT2_FLAG_EXCLUSIVE;
retval = try_open_fs(ctx, flags, io_ptr, &fs);
if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
!(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
((retval == EXT2_ET_BAD_MAGIC) ||
(retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
if (retval2 == ENOMEM) {
retval = retval2;
goto failure;
}
if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
ext2fs_free(fs);
fs = NULL;
}
if (!fs || (fs->group_desc_count > 1)) {
printf(_("%s: %s trying backup blocks...\n"),
ctx->program_name,
retval ? _("Superblock invalid,") :
_("Group descriptors look bad..."));
orig_superblock = ctx->superblock;
get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
if (fs)
ext2fs_close(fs);
orig_retval = retval;
retval = try_open_fs(ctx, flags, io_ptr, &fs);
if ((orig_retval == 0) && retval != 0) {
if (fs)
ext2fs_close(fs);
com_err(ctx->program_name, retval,
"when using the backup blocks");
printf(_("%s: going back to original "
"superblock\n"), ctx->program_name);
ctx->superblock = orig_superblock;
retval = try_open_fs(ctx, flags, io_ptr, &fs);
}
}
}
if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
(retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
fs && fs->super) {
sb = fs->super;
features[0] = (sb->s_feature_compat &
~EXT2_LIB_FEATURE_COMPAT_SUPP);
features[1] = (sb->s_feature_incompat &
~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
features[2] = (sb->s_feature_ro_compat &
~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
if (features[0] || features[1] || features[2])
goto print_unsupp_features;
}
failure:
if (retval) {
if (orig_retval)
retval = orig_retval;
com_err(ctx->program_name, retval, _("while trying to open %s"),
ctx->filesystem_name);
if (retval == EXT2_ET_REV_TOO_HIGH) {
printf(_("The filesystem revision is apparently "
"too high for this version of e2fsck.\n"
"(Or the filesystem superblock "
"is corrupt)\n\n"));
fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
} else if (retval == EXT2_ET_SHORT_READ)
printf(_("Could this be a zero-length partition?\n"));
else if ((retval == EPERM) || (retval == EACCES))
printf(_("You must have %s access to the "
"filesystem or be root\n"),
(ctx->options & E2F_OPT_READONLY) ?
"r/o" : "r/w");
else if (retval == ENXIO)
printf(_("Possibly non-existent or swap device?\n"));
else if (retval == EBUSY)
printf(_("Filesystem mounted or opened exclusively "
"by another program?\n"));
else if (retval == ENOENT)
printf(_("Possibly non-existent device?\n"));
#ifdef EROFS
else if (retval == EROFS)
printf(_("Disk write-protected; use the -n option "
"to do a read-only\n"
"check of the device.\n"));
#endif
else
fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
fatal_error(ctx, 0);
}
/*
* We only update the master superblock because (a) paranoia;
* we don't want to corrupt the backup superblocks, and (b) we
* don't need to update the mount count and last checked
* fields in the backup superblock (the kernel doesn't update
* the backup superblocks anyway). With newer versions of the
* library this flag is set by ext2fs_open2(), but we set this
* here just to be sure. (No, we don't support e2fsck running
* with some other libext2fs than the one that it was shipped
* with, but just in case....)
*/
fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
__u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
int need_restart = 0;
pctx.errcode = ext2fs_get_device_size2(ctx->filesystem_name,
blocksize,
&ctx->num_blocks);
/*
* The floppy driver refuses to allow anyone else to
* open the device if has been opened with O_EXCL;
* this is unlike other block device drivers in Linux.
* To handle this, we close the filesystem and then
* reopen the filesystem after we get the device size.
*/
if (pctx.errcode == EBUSY) {
ext2fs_close(fs);
need_restart++;
pctx.errcode =
ext2fs_get_device_size2(ctx->filesystem_name,
blocksize,
&ctx->num_blocks);
}
if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
ctx->num_blocks = 0;
else if (pctx.errcode) {
fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
fatal_error(ctx, 0);
}
ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
if (need_restart)
goto restart;
}
ctx->fs = fs;
fs->priv_data = ctx;
fs->now = ctx->now;
sb = fs->super;
if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
_("while trying to open %s"),
ctx->filesystem_name);
get_newer:
fatal_error(ctx, _("Get a newer version of e2fsck!"));
}
/*
* Set the device name, which is used whenever we print error
* or informational messages to the user.
*/
if (ctx->device_name == 0 &&
(sb->s_volume_name[0] != 0)) {
ctx->device_name = string_copy(ctx, sb->s_volume_name,
sizeof(sb->s_volume_name));
}
if (ctx->device_name == 0)
ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
for (cp = ctx->device_name; *cp; cp++)
if (isspace(*cp) || *cp == ':')
*cp = '_';
ehandler_init(fs->io);
if ((ctx->mount_flags & EXT2_MF_MOUNTED) &&
!(sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER))
goto skip_journal;
/*
* Make sure the ext3 superblock fields are consistent.
*/
retval = e2fsck_check_ext3_journal(ctx);
if (retval) {
com_err(ctx->program_name, retval,
_("while checking ext3 journal for %s"),
ctx->device_name);
fatal_error(ctx, 0);
}
/*
* Check to see if we need to do ext3-style recovery. If so,
* do it, and then restart the fsck.
*/
if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) {
if (ctx->options & E2F_OPT_READONLY) {
printf(_("Warning: skipping journal recovery "
"because doing a read-only filesystem "
"check.\n"));
io_channel_flush(ctx->fs->io);
} else {
if (ctx->flags & E2F_FLAG_RESTARTED) {
/*
* Whoops, we attempted to run the
* journal twice. This should never
* happen, unless the hardware or
* device driver is being bogus.
*/
com_err(ctx->program_name, 0,
_("unable to set superblock flags on %s\n"), ctx->device_name);
fatal_error(ctx, 0);
}
retval = e2fsck_run_ext3_journal(ctx);
if (retval) {
com_err(ctx->program_name, retval,
_("while recovering ext3 journal of %s"),
ctx->device_name);
fatal_error(ctx, 0);
}
ext2fs_close(ctx->fs);
ctx->fs = 0;
ctx->flags |= E2F_FLAG_RESTARTED;
goto restart;
}
}
skip_journal:
/*
* Check for compatibility with the feature sets. We need to
* be more stringent than ext2fs_open().
*/
features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
features[2] = (sb->s_feature_ro_compat &
~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
print_unsupp_features:
if (features[0] || features[1] || features[2]) {
int i, j;
__u32 *mask = features, m;
fprintf(stderr, _("%s has unsupported feature(s):"),
ctx->filesystem_name);
for (i=0; i <3; i++,mask++) {
for (j=0,m=1; j < 32; j++, m<<=1) {
if (*mask & m)
fprintf(stderr, " %s",
e2p_feature2string(i, m));
}
}
putc('\n', stderr);
goto get_newer;
}
#ifdef ENABLE_COMPRESSION
if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_COMPRESSION)
com_err(ctx->program_name, 0,
_("Warning: compression support is experimental.\n"));
#endif
#ifndef ENABLE_HTREE
if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) {
com_err(ctx->program_name, 0,
_("E2fsck not compiled with HTREE support,\n\t"
"but filesystem %s has HTREE directories.\n"),
ctx->device_name);
goto get_newer;
}
#endif
/*
* If the user specified a specific superblock, presumably the
* master superblock has been trashed. So we mark the
* superblock as dirty, so it can be written out.
*/
if (ctx->superblock &&
!(ctx->options & E2F_OPT_READONLY))
ext2fs_mark_super_dirty(fs);
/*
* Calculate the number of filesystem blocks per pagesize. If
* fs->blocksize > page_size, set the number of blocks per
* pagesize to 1 to avoid division by zero errors.
*/
#ifdef _SC_PAGESIZE
sysval = sysconf(_SC_PAGESIZE);
if (sysval > 0)
sys_page_size = sysval;
#endif /* _SC_PAGESIZE */
ctx->blocks_per_page = sys_page_size / fs->blocksize;
if (ctx->blocks_per_page == 0)
ctx->blocks_per_page = 1;
if (ctx->superblock)
set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
ext2fs_mark_valid(fs);
check_super_block(ctx);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
fatal_error(ctx, 0);
check_if_skip(ctx);
check_resize_inode(ctx);
if (bad_blocks_file)
read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
else if (cflag)
read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
fatal_error(ctx, 0);
/*
* Mark the system as valid, 'til proven otherwise
*/
ext2fs_mark_valid(fs);
retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
if (retval) {
com_err(ctx->program_name, retval,
_("while reading bad blocks inode"));
preenhalt(ctx);
printf(_("This doesn't bode well,"
" but we'll try to go on...\n"));
}
/*
* Save the journal size in megabytes.
* Try and use the journal size from the backup else let e2fsck
* find the default journal size.
*/
if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
journal_size = sb->s_jnl_blocks[16] >> 20;
else
/******************************************************************************
* Ext2fs boot command intepreter. Derived from diskboot
*/
int do_ext2load (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *filename = NULL;
char *ep;
int dev, part = 1;
ulong addr = 0, part_length, filelen;
disk_partition_t info;
block_dev_desc_t *dev_desc = NULL;
char buf [12];
unsigned long count;
char *addr_str;
switch (argc) {
case 3:
addr_str = getenv("loadaddr");
if (addr_str != NULL) {
addr = simple_strtoul (addr_str, NULL, 16);
} else {
addr = CONFIG_SYS_LOAD_ADDR;
}
filename = getenv ("bootfile");
count = 0;
break;
case 4:
addr = simple_strtoul (argv[3], NULL, 16);
filename = getenv ("bootfile");
count = 0;
break;
case 5:
addr = simple_strtoul (argv[3], NULL, 16);
filename = argv[4];
count = 0;
break;
case 6:
addr = simple_strtoul (argv[3], NULL, 16);
filename = argv[4];
count = simple_strtoul (argv[5], NULL, 16);
break;
default:
cmd_usage(cmdtp);
return(1);
}
if (!filename) {
puts ("\n** No boot file defined **\n");
return(1);
}
dev = (int)simple_strtoul (argv[2], &ep, 16);
dev_desc = get_dev(argv[1],dev);
if (dev_desc==NULL) {
printf ("\n** Block device %s %d not supported\n", argv[1], dev);
return(1);
}
if (*ep) {
if (*ep != ':') {
puts ("\n** Invalid boot device, use `dev[:part]' **\n");
return(1);
}
part = (int)simple_strtoul(++ep, NULL, 16);
}
PRINTF("Using device %s%d, partition %d\n", argv[1], dev, part);
if (part != 0) {
if (get_partition_info (dev_desc, part, &info)) {
printf ("** Bad partition %d **\n", part);
return(1);
}
if (strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) {
printf ("\n** Invalid partition type \"%.32s\""
" (expect \"" BOOT_PART_TYPE "\")\n",
info.type);
return(1);
}
PRINTF ("\nLoading from block device %s device %d, partition %d: "
"Name: %.32s Type: %.32s File:%s\n",
argv[1], dev, part, info.name, info.type, filename);
} else {
PRINTF ("\nLoading from block device %s device %d, File:%s\n",
argv[1], dev, filename);
}
if ((part_length = ext2fs_set_blk_dev(dev_desc, part)) == 0) {
printf ("** Bad partition - %s %d:%d **\n", argv[1], dev, part);
ext2fs_close();
return(1);
}
if (!ext2fs_mount(part_length)) {
printf ("** Bad ext2 partition or disk - %s %d:%d **\n", argv[1], dev, part);
ext2fs_close();
return(1);
}
filelen = ext2fs_open(filename);
if (filelen < 0) {
printf("** File not found %s\n", filename);
ext2fs_close();
return(1);
}
if ((count < filelen) && (count != 0)) {
filelen = count;
}
if (ext2fs_read((char *)addr, filelen) != filelen) {
printf("\n** Unable to read \"%s\" from %s %d:%d **\n", filename, argv[1], dev, part);
ext2fs_close();
return(1);
}
ext2fs_close();
/* Loading ok, update default load address */
load_addr = addr;
printf ("\n%ld bytes read\n", filelen);
sprintf(buf, "%lX", filelen);
setenv("filesize", buf);
return(filelen);
}