It is not possible to configure encrypted containers on multiple partitions of
the same disk; after the first one all subsequent fail with

disk/cryptodisk.c:978: already mounted as crypto0

Store partition offset in cryptomount descriptor to distinguish between them.

Otherwise subsequent disk open fails.
Reported-By: Klemens Nanni <contact@autoboot.org>

All current ciphers have blocks which are power of 2 and it's
unlikely to change. Other block length would be tricky to handle anyway.
This restriction allows avoiding extra divisions.

Found by: Coverity scan.

Commit 588744d0 caused grub-mkconfig
no longer to be forgiving of trailing spaces on grub-probe output
lines, which among other things means that util/grub.d/10_linux.in
no longer detects LVM.  To fix this, make grub-probe's output
delimiting more consistent.  As a bonus, this improves the coverage
of the -0 option.

Fixes Debian bug #735935.

* grub-core/disk/cryptodisk.c
(grub_util_cryptodisk_get_abstraction): Add a user-data argument.
* grub-core/disk/diskfilter.c (grub_diskfilter_get_partmap):
Likewise.
* include/grub/cryptodisk.h (grub_util_cryptodisk_get_abstraction):
Update prototype.
* include/grub/diskfilter.h (grub_diskfilter_get_partmap): Likewise.
* util/grub-install.c (push_partmap_module, push_cryptodisk_module,
probe_mods): Adjust for extra user-data arguments.
* util/grub-probe.c (do_print, probe_partmap, probe_cryptodisk_uuid,
probe_abstraction): Use configured delimiter.  Update callers.

	API.

	* grub-core/disk/cryptodisk.c: Likewise.
	* grub-core/disk/geli.c: Likewise.
	* grub-core/disk/luks.c: Likewise.

	reading large extents and decrease amount of blocklist hook calls.

	of strerror.

	fseeko.

	and not just printable.

	for cheat_fd.
	* grub-core/disk/cryptodisk.c (grub_cryptodisk_open): Use grub_util_*
	functions.
	(grub_cryptodisk_cheat_insert): Likewise.
	(grub_cryptodisk_close): Likewise.

	grub-core/disk/geli.c.

	on first error.

* include/grub/arc/arc.h (grub_arc_iterate_devs_hook_t): New type.
(grub_arc_iterate_devs): Add hook_data argument.
* include/grub/ata.h (grub_ata_dev_iterate_hook_t): New type.
(struct grub_ata_dev.iterate): Add hook_data argument.
* include/grub/device.h (grub_device_iterate_hook_t): New type.
(grub_device_iterate): Add hook_data argument.
* include/grub/disk.h (grub_disk_dev_iterate_hook_t): New type.
(struct grub_disk_dev.iterate): Add hook_data argument.
(grub_disk_dev_iterate): Likewise.
* include/grub/gpt_partition.h (grub_gpt_partition_map_iterate):
Likewise.
* include/grub/msdos_partition.h (grub_partition_msdos_iterate):
Likewise.
* include/grub/partition.h (grub_partition_iterate_hook_t): New
type.
(struct grub_partition_map.iterate): Add hook_data argument.
(grub_partition_iterate): Likewise.
* include/grub/scsi.h (grub_scsi_dev_iterate_hook_t): New type.
(struct grub_scsi_dev.iterate): Add hook_data argument.

Update all callers.

	around device name if necessarry.

	* grub-core/commands/keystatus.c: Likewise.
	* grub-core/commands/loadenv.c: Likewise.
	* grub-core/commands/probe.c: Likewise.
	* grub-core/commands/regexp.c: Likewise.
	* grub-core/commands/true.c: Likewise.
	* grub-core/commands/videoinfo.c: Likewise.
	* grub-core/disk/cryptodisk.c: Likewise.
	* grub-core/disk/ldm.c: Likewise.
	* grub-core/disk/loopback.c: Likewise.
	* grub-core/disk/luks.c: Likewise.
	* grub-core/fs/zfs/zfsinfo.c: Likewise.
	* grub-core/kern/disk.c: Likewise.
	* grub-core/kern/emu/hostdisk.c: Likewise.

	argument from encrypt to do_encrypt to avoid shadowing.

	on it.

	* grub-core/disk/cryptodisk.c (cryptodisk_cleanup): Disable for
	now to avoid double free.
	* grub-core/kern/emu/hostdisk.c (grub_util_biosdisk_dev): Rename to
	hostdisk.
	* include/grub/disk.h (grub_disk_dev_id): New id HOSTDISK.
	* util/grub-probe.c (escape_of_path): Always return a new copy.
	(print_full_name): Escape path.
	(probe): Don't call grub_util_devname_to_ofpath on NULL.
	Fix hints on abstractions.

	* grub-core/disk/cryptodisk.c (grub_crypto_pcbc_encrypt): New function.
	(grub_cryptodisk_decrypt): Moved logic to ...
	(grub_cryptodisk_endecrypt): ...this. New argument "encrypt".
	(grub_cryptodisk_write): Implement.
	* grub-core/kern/emu/hostdisk.c (nwrite): Rename to ...
	(grub_util_fd_write): ... this. Make global.
	* include/grub/emu/hostdisk.h (grub_util_fd_write): New proto.

	* grub-core/kern/emu/getroot.c (grub_util_pull_device) [!FreeBSD]:
	Disable geli.
	(grub_util_get_grub_dev) [!FreeBSD]: Likewise.
	(grub_util_pull_device) [HAVE_DEVICE_MAPPER]: Fix const and func name.
	* grub-core/disk/cryptodisk.c (grub_cryptodisk_open): Fix proto.