PyObject *py_ped_timer_reset(PyObject *s, PyObject *args) {
PedTimer *timer = NULL;
timer = _ped_Timer2PedTimer(s);
if (timer == NULL) {
return NULL;
}
ped_timer_reset(timer);
ped_timer_destroy(timer);
Py_INCREF(Py_None);
return Py_None;
}
/**
* \brief Creates a timer.
*
* Context will be passed in the \p context
* argument to the \p handler, when it is invoked.
*
* \return a new PedTimer
*/
PedTimer*
ped_timer_new (PedTimerHandler* handler, void* context)
{
PedTimer* timer;
PED_ASSERT (handler != NULL);
timer = (PedTimer*) ped_malloc (sizeof (PedTimer));
if (!timer)
return NULL;
timer->handler = handler;
timer->context = context;
ped_timer_reset (timer);
return timer;
}
int
hfsplus_resize (PedFileSystem* fs, PedGeometry* geom, PedTimer* timer)
{
HfsPPrivateFSData* priv_data;
PedTimer* timer_plus;
PedGeometry* embedded_geom;
PedSector hgms;
/* check preconditions */
PED_ASSERT (fs != NULL);
PED_ASSERT (fs->geom != NULL);
PED_ASSERT (geom != NULL);
PED_ASSERT (fs->geom->dev == geom->dev);
#ifdef DEBUG
PED_ASSERT ((hgms = hfsplus_get_min_size (fs)) != 0);
#else
if ((hgms = hfsplus_get_min_size (fs)) == 0)
return 0;
#endif
if (ped_geometry_test_equal(fs->geom, geom))
return 1;
priv_data = (HfsPPrivateFSData*) fs->type_specific;
if (fs->geom->start != geom->start
|| geom->length > fs->geom->length
|| geom->length < hgms) {
ped_exception_throw (
PED_EXCEPTION_NO_FEATURE,
PED_EXCEPTION_CANCEL,
_("Sorry, HFS+ cannot be resized that way yet."));
return 0;
}
if (priv_data->wrapper) {
PedSector red, hgee;
HfsPrivateFSData* hfs_priv_data = (HfsPrivateFSData*)
priv_data->wrapper->type_specific;
unsigned int hfs_sect_block =
PED_BE32_TO_CPU (hfs_priv_data->mdb->block_size)
/ PED_SECTOR_SIZE_DEFAULT;
/* There is a wrapper so we must calculate the new geometry
of the embedded HFS+ volume */
red = ( (fs->geom->length - geom->length + hfs_sect_block - 1)
/ hfs_sect_block ) * hfs_sect_block;
/* Can't we shrink the hfs+ volume by the desired size ? */
hgee = hfsplus_get_empty_end (fs);
if (!hgee) return 0;
if (red > priv_data->plus_geom->length - hgee) {
/* No, shrink hfs+ by the greatest possible value */
hgee = ((hgee + hfs_sect_block - 1) / hfs_sect_block)
* hfs_sect_block;
red = priv_data->plus_geom->length - hgee;
}
embedded_geom = ped_geometry_new (geom->dev,
priv_data->plus_geom->start,
priv_data->plus_geom->length
- red);
/* There is a wrapper so the resize process is a two stages
process (embedded resizing then wrapper resizing) :
we create a sub timer */
ped_timer_reset (timer);
ped_timer_set_state_name (timer,
_("shrinking embedded HFS+ volume"));
ped_timer_update(timer, 0.0);
timer_plus = ped_timer_new_nested (timer, 0.98);
} else {
/* No wrapper : the desired geometry is the desired
HFS+ volume geometry */
embedded_geom = geom;
timer_plus = timer;
}
/* Resize the HFS+ volume */
if (!hfsplus_volume_resize (fs, embedded_geom, timer_plus)) {
if (timer_plus != timer) ped_timer_destroy_nested (timer_plus);
ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Resizing the HFS+ volume has failed."));
return 0;
}
if (priv_data->wrapper) {
ped_geometry_destroy (embedded_geom);
ped_timer_destroy_nested (timer_plus);
ped_timer_set_state_name(timer, _("shrinking HFS wrapper"));
timer_plus = ped_timer_new_nested (timer, 0.02);
/* There's a wrapper : second stage = resizing it */
if (!hfsplus_wrapper_update (fs)
|| !hfs_resize (priv_data->wrapper, geom, timer_plus)) {
ped_timer_destroy_nested (timer_plus);
ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Updating the HFS wrapper has failed."));
return 0;
}
ped_timer_destroy_nested (timer_plus);
}
ped_timer_update(timer, 1.0);
return 1;
}
static int
hfsplus_volume_resize (PedFileSystem* fs, PedGeometry* geom, PedTimer* timer)
{
uint8_t buf[PED_SECTOR_SIZE_DEFAULT];
unsigned int nblock, nfree, mblock;
unsigned int block, to_free, old_blocks;
HfsPPrivateFSData* priv_data = (HfsPPrivateFSData*)
fs->type_specific;
HfsPVolumeHeader* vh = priv_data->vh;
int resize = 1;
unsigned int hfsp_sect_block =
( PED_BE32_TO_CPU (vh->block_size)
/ PED_SECTOR_SIZE_DEFAULT );
unsigned int map_sectors;
old_blocks = PED_BE32_TO_CPU (vh->total_blocks);
/* Flush caches */
if (!ped_geometry_sync(priv_data->plus_geom))
return 0;
/* Clear the unmounted bit */
/* and set the implementation code (Apple Creator Code) */
vh->attributes &= PED_CPU_TO_BE32 (~( 1 << HFS_UNMOUNTED ));
vh->last_mounted_version = PED_CPU_TO_BE32(HFSP_IMPL_Shnk);
if (!ped_geometry_read (priv_data->plus_geom, buf, 2, 1))
return 0;
memcpy (buf, vh, sizeof (HfsPVolumeHeader));
if ( !ped_geometry_write (priv_data->plus_geom, buf, 2, 1)
|| !ped_geometry_sync (priv_data->plus_geom))
return 0;
ped_timer_reset (timer);
ped_timer_set_state_name(timer, _("shrinking"));
ped_timer_update(timer, 0.0);
/* relocate data */
to_free = ( priv_data->plus_geom->length
- geom->length + hfsp_sect_block
- 1 ) / hfsp_sect_block;
block = hfsplus_find_start_pack (fs, to_free);
if (!hfsplus_pack_free_space_from_block (fs, block, timer, to_free)) {
resize = 0;
ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Data relocation has failed."));
goto write_VH;
}
/* Calculate new block number and other VH field */
/* nblock must be rounded _down_ */
nblock = geom->length / hfsp_sect_block;
nfree = PED_BE32_TO_CPU (vh->free_blocks)
- (old_blocks - nblock);
/* free block readjustement is only needed when incorrect nblock
was used by my previous implementation, so detect the case */
if (priv_data->plus_geom->length < old_blocks
* ( PED_BE32_TO_CPU (vh->block_size)
/ PED_SECTOR_SIZE_DEFAULT) ) {
if (priv_data->plus_geom->length % hfsp_sect_block == 1)
nfree++;
}
/* Check that all block after future end are really free */
mblock = ( priv_data->plus_geom->length - 2 )
/ hfsp_sect_block;
if (mblock > old_blocks - 1)
mblock = old_blocks - 1;
for ( block = nblock;
block < mblock;
block++ ) {
if (TST_BLOC_OCCUPATION(priv_data->alloc_map,block)) {
resize = 0;
ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Data relocation left some data at the end "
"of the volume."));
goto write_VH;
}
}
/* Mark out of volume blocks as used */
map_sectors = ( ( old_blocks + PED_SECTOR_SIZE_DEFAULT * 8 - 1 )
/ (PED_SECTOR_SIZE_DEFAULT * 8) )
* (PED_SECTOR_SIZE_DEFAULT * 8);
for ( block = nblock; block < map_sectors; ++block)
SET_BLOC_OCCUPATION(priv_data->alloc_map, block);
/* Update geometry */
if (resize) {
/* update in fs structure */
if (PED_BE32_TO_CPU (vh->next_allocation) >= nblock)
vh->next_allocation = PED_CPU_TO_BE32 (0);
vh->total_blocks = PED_CPU_TO_BE32 (nblock);
vh->free_blocks = PED_CPU_TO_BE32 (nfree);
/* update parted structure */
priv_data->plus_geom->length = geom->length;
priv_data->plus_geom->end = priv_data->plus_geom->start
+ geom->length - 1;
}
/* Effective write */
write_VH:
/* lasts two sectors are allocated by the alternate VH
and a reserved sector, and last block is always reserved */
block = (priv_data->plus_geom->length - 1) / hfsp_sect_block;
if (block < PED_BE32_TO_CPU (vh->total_blocks))
SET_BLOC_OCCUPATION(priv_data->alloc_map, block);
block = (priv_data->plus_geom->length - 2) / hfsp_sect_block;
if (block < PED_BE32_TO_CPU (vh->total_blocks))
SET_BLOC_OCCUPATION(priv_data->alloc_map, block);
SET_BLOC_OCCUPATION(priv_data->alloc_map,
PED_BE32_TO_CPU (vh->total_blocks) - 1);
/* Write the _old_ area to set out of volume blocks as used */
map_sectors = ( old_blocks + PED_SECTOR_SIZE_DEFAULT * 8 - 1 )
/ (PED_SECTOR_SIZE_DEFAULT * 8);
if (!hfsplus_file_write (priv_data->allocation_file,
priv_data->alloc_map, 0, map_sectors)) {
resize = 0;
ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Error while writing the allocation file."));
} else {
/* Write remaining part of allocation bitmap */
/* This is necessary to handle pre patch-11 and third party */
/* implementations */
memset(buf, 0xFF, PED_SECTOR_SIZE_DEFAULT);
for (block = map_sectors;
block < priv_data->allocation_file->sect_nb;
++block) {
if (!hfsplus_file_write_sector (
priv_data->allocation_file,
buf, block)) {
ped_exception_throw (
PED_EXCEPTION_WARNING,
PED_EXCEPTION_IGNORE,
_("Error while writing the "
"compatibility part of the "
"allocation file."));
break;
}
}
}
ped_geometry_sync (priv_data->plus_geom);
if (resize) {
/* Set the unmounted bit and clear the inconsistent bit */
vh->attributes |= PED_CPU_TO_BE32 ( 1 << HFS_UNMOUNTED );
vh->attributes &= ~ PED_CPU_TO_BE32 ( 1 << HFSP_INCONSISTENT );
}
ped_timer_set_state_name(timer, _("writing HFS+ Volume Header"));
if (!hfsplus_update_vh(fs)) {
ped_geometry_sync(priv_data->plus_geom);
return 0;
}
if (!ped_geometry_sync(priv_data->plus_geom))
return 0;
ped_timer_update(timer, 1.0);
return (resize);
}
int
hfs_resize (PedFileSystem* fs, PedGeometry* geom, PedTimer* timer)
{
uint8_t buf[PED_SECTOR_SIZE_DEFAULT];
unsigned int nblock, nfree;
unsigned int block, to_free;
HfsPrivateFSData* priv_data;
HfsMasterDirectoryBlock* mdb;
int resize = 1;
unsigned int hfs_sect_block;
PedSector hgee;
/* check preconditions */
PED_ASSERT (fs != NULL);
PED_ASSERT (fs->geom != NULL);
PED_ASSERT (geom != NULL);
#ifdef DEBUG
PED_ASSERT ((hgee = hfs_get_empty_end(fs)) != 0);
#else
if ((hgee = hfs_get_empty_end(fs)) == 0)
return 0;
#endif
PED_ASSERT ((hgee = hfs_get_empty_end(fs)) != 0);
if (ped_geometry_test_equal(fs->geom, geom))
return 1;
priv_data = (HfsPrivateFSData*) fs->type_specific;
mdb = priv_data->mdb;
hfs_sect_block = PED_BE32_TO_CPU (mdb->block_size)
/ PED_SECTOR_SIZE_DEFAULT;
if (fs->geom->start != geom->start
|| geom->length > fs->geom->length
|| geom->length < hgee + 2) {
ped_exception_throw (
PED_EXCEPTION_NO_FEATURE,
PED_EXCEPTION_CANCEL,
_("Sorry, HFS cannot be resized that way yet."));
return 0;
}
/* Flush caches */
if (!ped_geometry_sync(fs->geom))
return 0;
/* Clear the unmounted bit */
mdb->volume_attributes &= PED_CPU_TO_BE16 (~( 1 << HFS_UNMOUNTED ));
if (!ped_geometry_read (fs->geom, buf, 2, 1))
return 0;
memcpy (buf, mdb, sizeof (HfsMasterDirectoryBlock));
if ( !ped_geometry_write (fs->geom, buf, 2, 1)
|| !ped_geometry_sync (fs->geom))
return 0;
ped_timer_reset (timer);
ped_timer_set_state_name(timer, _("shrinking"));
ped_timer_update(timer, 0.0);
/* relocate data */
to_free = ( fs->geom->length - geom->length
+ hfs_sect_block - 1 )
/ hfs_sect_block ;
block = hfs_find_start_pack (fs, to_free);
if (!hfs_pack_free_space_from_block (fs, block, timer, to_free)) {
resize = 0;
ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Data relocation has failed."));
goto write_MDB;
}
/* Calculate new block number and other MDB field */
nblock = ( geom->length - (PED_BE16_TO_CPU (mdb->start_block) + 2) )
/ hfs_sect_block;
nfree = PED_BE16_TO_CPU (mdb->free_blocks)
- ( PED_BE16_TO_CPU (mdb->total_blocks) - nblock );
/* Check that all block after future end are really free */
for (block = nblock;
block < PED_BE16_TO_CPU (mdb->total_blocks);
block++) {
if (TST_BLOC_OCCUPATION(priv_data->alloc_map,block)) {
resize = 0;
ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Data relocation left some data in the end "
"of the volume."));
goto write_MDB;
}
}
/* Mark out of volume blocks as used
(broken implementations compatibility) */
for ( block = nblock; block < (1 << 16); ++block)
SET_BLOC_OCCUPATION(priv_data->alloc_map,block);
/* save the allocation map
I do not write until start of allocation blocks
but only until pre-resize end of bitmap blocks
because the specifications do _not_ assert that everything
until allocation blocks is boot, mdb and alloc */
ped_geometry_write(fs->geom, priv_data->alloc_map,
PED_BE16_TO_CPU (priv_data->mdb->volume_bitmap_block),
( PED_BE16_TO_CPU (priv_data->mdb->total_blocks)
+ PED_SECTOR_SIZE_DEFAULT * 8 - 1)
/ (PED_SECTOR_SIZE_DEFAULT * 8));
/* Update geometry */
if (resize) {
/* update in fs structure */
if (PED_BE16_TO_CPU (mdb->next_allocation) >= nblock)
mdb->next_allocation = PED_CPU_TO_BE16 (0);
mdb->total_blocks = PED_CPU_TO_BE16 (nblock);
mdb->free_blocks = PED_CPU_TO_BE16 (nfree);
/* update parted structure */
fs->geom->length = geom->length;
fs->geom->end = fs->geom->start + geom->length - 1;
}
/* Set the unmounted bit */
mdb->volume_attributes |= PED_CPU_TO_BE16 ( 1 << HFS_UNMOUNTED );
/* Effective write */
write_MDB:
ped_timer_set_state_name(timer,_("writing HFS Master Directory Block"));
if (!hfs_update_mdb(fs)) {
ped_geometry_sync(geom);
return 0;
}
if (!ped_geometry_sync(geom))
return 0;
ped_timer_update(timer, 1.0);
return (resize);
}
static PedFileSystem *reiserfs_copy(const PedFileSystem *fs,
PedGeometry *geom, PedTimer *timer)
{
dal_t *dal;
PedGeometry *fs_geom;
PedFileSystem *new_fs;
blk_t fs_len, min_needed_blk;
reiserfs_fs_t *dest_fs, *src_fs;
reiserfs_gauge_t *gauge = NULL;
fs_geom = ped_geometry_duplicate(geom);
if (!(dal = geom_dal_create(fs_geom, DEFAULT_BLOCK_SIZE, O_RDWR))) {
ped_exception_throw(PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Couldn't create reiserfs device "
"abstraction handler."));
goto error_free_fs_geom;
}
src_fs = fs->type_specific;
fs_len =
(geom->length / (reiserfs_fs_block_size(src_fs) / PED_SECTOR_SIZE_DEFAULT));
min_needed_blk = reiserfs_fs_bitmap_used(src_fs);
if (fs_len <= min_needed_blk) {
ped_exception_throw(PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Device is too small for %lu blocks."),
min_needed_blk);
goto error_free_dal;
}
if (! (new_fs = (PedFileSystem *) ped_malloc(sizeof(PedFileSystem))))
goto error_free_dal;
ped_timer_reset(timer);
ped_timer_set_state_name(timer, _("copying"));
ped_timer_update(timer, 0.0);
if (libreiserfs_gauge_create && libreiserfs_gauge_free) {
if (! (gauge =
libreiserfs_gauge_create(NULL, gauge_handler, timer)))
goto error_free_new_fs;
}
if (!(dest_fs = reiserfs_fs_copy(src_fs, dal, gauge)))
goto error_free_gauge;
ped_timer_update(timer, 1.0);
if (gauge)
libreiserfs_gauge_free(gauge);
new_fs->type = reiserfs_type;
new_fs->geom = fs_geom;
new_fs->type_specific = (void *) dest_fs;
return new_fs;
error_free_gauge:
if (gauge)
libreiserfs_gauge_free(gauge);
error_free_new_fs:
free(new_fs);
error_free_dal:
geom_dal_free(dal);
error_free_fs_geom:
ped_geometry_destroy(fs_geom);
return NULL;
}
static int reiserfs_resize(PedFileSystem *fs, PedGeometry *geom,
PedTimer *timer)
{
dal_t *dal;
blk_t fs_len;
PedSector old_length;
reiserfs_fs_t *fs_info;
reiserfs_gauge_t *gauge = NULL;
PED_ASSERT(fs != NULL);
old_length = fs->geom->length;
PED_ASSERT (fs->geom->dev == geom->dev);
if (fs->geom->start != geom->start) {
ped_exception_throw(PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Sorry, can't move the start of "
"reiserfs partitions yet."));
return 0;
}
fs_info = fs->type_specific;
fs_len = (blk_t) (geom->length / (reiserfs_fs_block_size(fs_info) /
PED_SECTOR_SIZE_DEFAULT));
dal = reiserfs_fs_host_dal(fs_info);
if (dal_flags(dal) && O_RDONLY) {
if (!geom_dal_reopen(dal, O_RDWR)) {
ped_exception_throw(PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Couldn't reopen device "
"abstraction layer for "
"read/write."));
return 0;
}
}
ped_timer_reset(timer);
if (libreiserfs_gauge_create && libreiserfs_gauge_free) {
if (!
(gauge =
libreiserfs_gauge_create(NULL, gauge_handler, timer)))
return 0;
}
if (old_length > geom->length) {
ped_timer_set_state_name(timer, _("shrinking"));
ped_timer_update(timer, 0.0);
if (!reiserfs_fs_resize(fs_info, fs_len, gauge))
goto error_free_gauge;
ped_geometry_set_end (fs->geom, geom->end);
dal_realize(dal);
} else {
ped_geometry_set_end (fs->geom, geom->end);
dal_realize(dal);
ped_timer_set_state_name(timer, _("expanding"));
ped_timer_update(timer, 0.0);
if (!reiserfs_fs_resize(fs_info, fs_len, gauge))
goto error_free_gauge;
}
ped_timer_update(timer, 1.0);
if (gauge)
libreiserfs_gauge_free(gauge);
return 1;
error_free_gauge:
if (gauge)
libreiserfs_gauge_free(gauge);
ped_geometry_set_end (fs->geom, fs->geom->start + old_length - 1);
return 0;
}
static int reiserfs_check(PedFileSystem *fs, PedTimer *timer)
{
reiserfs_fs_t *fs_info;
#ifdef HAVE_REISERFS_FS_CHECK
reiserfs_gauge_t *gauge = NULL;
#endif
PED_ASSERT(fs != NULL);
fs_info = fs->type_specific;
if (!reiserfs_fs_is_consistent(fs_info)) {
ped_exception_throw(PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("The file system is in an invalid "
"state. Perhaps it is mounted?"));
return 0;
}
if (!reiserfs_fs_is_resizeable(fs_info))
ped_exception_throw(PED_EXCEPTION_WARNING,
PED_EXCEPTION_IGNORE,
_("The file system is in old "
"(unresizeable) format."));
if (!reiserfs_fs_bitmap_check(fs_info)) {
ped_exception_throw(PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Invalid free blocks count. Run "
"reiserfsck --check first."));
return 0;
}
#ifdef HAVE_REISERFS_FS_CHECK
ped_timer_reset(timer);
if (libreiserfs_gauge_create && libreiserfs_gauge_free) {
if (!
(gauge =
libreiserfs_gauge_create(NULL, gauge_handler, timer)))
return 0;
}
ped_timer_set_state_name(timer, _("checking"));
ped_timer_update(timer, 0.0);
if (!reiserfs_fs_check(fs_info, gauge)) {
ped_exception_throw(PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Reiserfs tree seems to be corrupted. "
"Run reiserfsck --check first."));
return 0;
}
ped_timer_update(timer, 1.0);
if (gauge)
libreiserfs_gauge_free(gauge);
#endif
ped_exception_throw(PED_EXCEPTION_INFORMATION, PED_EXCEPTION_OK,
_("The reiserfs file system passed a basic check. "
"For a more comprehensive check, run "
"reiserfsck --check."));
return 1;
}
static PedFileSystem *reiserfs_create(PedGeometry *geom, PedTimer *timer)
{
dal_t *dal;
uuid_t uuid;
PedFileSystem *fs;
PedGeometry *fs_geom;
reiserfs_fs_t *fs_info;
reiserfs_gauge_t *gauge = NULL;
PED_ASSERT(geom != NULL);
fs_geom = ped_geometry_duplicate(geom);
if (!(dal = geom_dal_create(fs_geom, DEFAULT_BLOCK_SIZE, O_RDWR)))
goto error_fs_geom_free;
memset(uuid, 0, sizeof(uuid));
uuid_generate(uuid);
ped_timer_reset(timer);
ped_timer_set_state_name(timer, _("creating"));
if (libreiserfs_gauge_create && libreiserfs_gauge_free) {
if (! (gauge =
libreiserfs_gauge_create(NULL, gauge_handler, timer)))
goto error_free_dal;
}
if (!(fs_info = reiserfs_fs_create(dal, dal, 0, JOURNAL_MAX_TRANS,
DEFAULT_JOURNAL_SIZE,
DEFAULT_BLOCK_SIZE,
FS_FORMAT_3_6, R5_HASH, NULL,
(char *) uuid, dal_len(dal),
gauge)))
goto error_free_gauge;
ped_timer_update(timer, 1.0);
if (gauge)
libreiserfs_gauge_free(gauge);
if (!(fs = (PedFileSystem *) ped_malloc(sizeof(PedFileSystem))))
goto error_free_fs_info;
fs->type = reiserfs_type;
fs->geom = fs_geom;
fs->type_specific = (void *) fs_info;
return fs;
error_free_fs_info:
free(fs_info);
error_free_gauge:
if (gauge)
libreiserfs_gauge_free(gauge);
error_free_dal:
geom_dal_free(dal);
error_fs_geom_free:
ped_geometry_destroy(fs_geom);
return NULL;
}
