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Revision 1.33 by root, Thu Aug 15 08:39:11 2019 UTC vs.
Revision 1.76 by root, Tue Aug 9 11:44:54 2022 UTC

…		…
17	#	17	#
18	# You should have received a copy of the GNU General Public License	18	# You should have received a copy of the GNU General Public License
19	# along with this program. If not, see <https://www.gnu.org/licenses/>.	19	# along with this program. If not, see <https://www.gnu.org/licenses/>.
20	#	20	#
21		21
22	use 5.014; # numerous features needed	22	use 5.016; # numerous features need 5.14, __SUB__ needs 5.16
23		23
24	our $VERSION = '1.0';	24	our $VERSION = '1.5';
25	our $JSON_VERSION = 1; # the versiobn of the json objects generated by this program	25	our $JSON_VERSION = 3; # the version of the json objects generated by this program
		26
		27	our $CHANGELOG = <<EOF;
		28
		29	1.5 Mon Nov 25 15:54:34 CET 2019
		30	- add "del" edit instruction.
		31	- work around lsblk bug sometimes giving "dos" pttype for gpt partitions.
		32	- bootmenupolicy in synopsis must be set to 0 to get the text menu.
		33	- minor doc fxes.
		34	- disable use of perldoc for help, doesn't work well.
		35
		36	1.4 Thu Aug 22 10:48:22 CEST 2019
		37	- new "create" subcommand.
		38	- "create" and "edit" try to save and restore ownership/permissions
		39	of bcd hives when writing the new file.
		40	- editorial fixes to the documentation.
		41	- add mininmal hive creation example.
		42
		43	1.3 Sat Aug 17 07:04:15 CEST 2019
		44	- output of pbcdedit elements --json has changed, as it didn't
		45	take the reorganisation by classes fully into account.
		46	- json schema bumped to 3.
		47	- new "bcd-device" and "bcd-legacy-device" subcommands.
		48	- implement --json option for lsblk.
		49
		50	1.2 Fri Aug 16 00:20:41 CEST 2019
		51	- bcd element names now depend on the bcd object type they are in,
		52	also affects "elements" output.
		53	- json schema bumped to 2.
		54	- new version command.
		55	- numerous minor bugfixes.
		56
		57	EOF
26		58
27	=head1 NAME	59	=head1 NAME
28		60
29	pbcdedit - portable boot configuration data (BCD) store editor	61	pbcdedit - portable boot configuration data (BCD) store editor
30		62
31	=head1 SYNOPSIS	63	=head1 SYNOPSIS
32		64
33	pbcdedit help # output manual page	65	pbcdedit help # output manual page
		66	pbcdedit version # output version and changelog
34		67
35	pbcdedit export path/to/BCD # output BCD hive as JSON	68	pbcdedit export path/to/BCD # output BCD hive as JSON
36	pbcdedit import path/to/BCD # convert standard input to BCD hive	69	pbcdedit import path/to/BCD # convert standard input to BCD hive
37	pbcdedit edit path/to/BCD edit-instructions...	70	pbcdedit edit path/to/BCD edit-instructions...
38		71
39	pbcdedit objects # list all supported object aliases and types	72	pbcdedit objects # list all supported object aliases and types
40	pbcdedit elements # list all supported bcd element aliases	73	pbcdedit elements # list all supported bcd element aliases
41		74
		75	# Example: enable text-based boot menu.
		76	pbcdedit edit /my/BCD set '{default}' bootmenupolicy 0
		77
		78	# Example change system device to first partition containing winload.
		79	pbcdedit edit /my/BCD \
		80	set '{default}' device 'locate=<null>,element,path' \
		81	set '{default}' osdevice 'locate=<null>,element,path'
		82
		83
42	=head1 DESCRIPTION	84	=head1 DESCRIPTION
43		85
44	This program allows you to create, read and modify Boot Configuration Data	86	This program allows you to create, read and modify Boot Configuration Data
45	(BCD) stores used by Windows Vista and newer versions of Windows.	87	(BCD) stores used by Windows Vista and newer versions of Windows.
46		88
…		…
59		101
60	=item Does not rely on Windows	102	=item Does not rely on Windows
61		103
62	As the "portable" in the name implies, this program does not rely on	104	As the "portable" in the name implies, this program does not rely on
63	C<bcdedit> or other windows programs or libraries, it works on any system	105	C<bcdedit> or other windows programs or libraries, it works on any system
64	that supports at least perl version 5.14.	106	that supports at least perl version 5.16.
65		107
66	=item Decodes and encodes BCD device elements	108	=item Decodes and encodes BCD device elements
67		109
68	PBCDEDIT can concisely decode and encode BCD device element contents. This	110	PBCDEDIT can concisely decode and encode BCD device element contents. This
69	is pretty unique, and offers a lot of potential that can't be realised	111	is pretty unique, and offers a lot of potential that can't be realised
…		…
92		134
93	=item C<help>	135	=item C<help>
94		136
95	Displays the whole manual page (this document).	137	Displays the whole manual page (this document).
96		138
		139	=item C<version>
		140
		141	This outputs the PBCDEDIT version, the JSON schema version it uses and the
		142	full log of changes.
		143
97	=item C<export> F<path>	144	=item C<export> F<path>
98		145
99	Reads a BCD data store and writes a JSON representation of it to standard	146	Reads a BCD data store and writes a JSON representation of it to standard
100	output.	147	output.
101		148
…		…
120	=item C<parse> F<path> I<instructions...>	167	=item C<parse> F<path> I<instructions...>
121		168
122	Same as C<edit>, above, except it doesn't save the data store again. Can	169	Same as C<edit>, above, except it doesn't save the data store again. Can
123	be useful to extract some data from it.	170	be useful to extract some data from it.
124		171
125	=item C<lsblk>	172	=item C<create> F<path> I<instructions...>
		173
		174	Same as C<edit>, above, except it creates a new data store from scratch if
		175	needed. An existing store will be emptied completely.
		176
		177	=item C<lsblk> [C<--json>]
126		178
127	On a GNU/Linux system, you can get a list of partition device descriptors	179	On a GNU/Linux system, you can get a list of partition device descriptors
128	using this command - the external C<lsblk> command is required, as well as	180	using this command - the external C<lsblk> command is required, as well as
129	a mounted C</sys> file system.	181	a mounted C</sys> file system.
130		182
131	The output will be a list of all partitions in the system and C<partition>	183	The output will be a list of all partitions in the system and C<partition>
132	descriptors for GPT and both C<legacypartition> and C<partition>	184	descriptors for GPT and both C<legacypartition> and C<partition>
133	descriptors for MBR partitions.	185	descriptors for MBR partitions.
		186
		187	With C<--json> it will print similar information as C<lsblk --json>, but
		188	with extra C<bcd_device> and C<bcd_legacy_device> attributes.
		189
		190	=item C<bcd-device> F<path>
		191
		192	Tries to find the BCD device element for the given device, which currently
		193	must be a a partition of some kind. Prints the C<partition=> descriptor as
		194	a result, or nothing. Exit status will be true on success, and false on
		195	failure.
		196
		197	Like C<lsblk>, above, this likely only works on GNU/Linux systems.
		198
		199	Example: print the partition descriptor of tghe partition with label DATA.
		200
		201	$ pbcdedit bcd-device /dev/disk/by-label/DATA
		202	partition=<null>,harddisk,mbr,47cbc08a,213579202560
		203
		204	=item C<bcd-legacy-device> F<path>
		205
		206	Like above, but uses a C<legacypartition> descriptor instead.
134		207
135	=item C<objects> [C<--json>]	208	=item C<objects> [C<--json>]
136		209
137	Outputs two tables: a table listing all type aliases with their hex BCD	210	Outputs two tables: a table listing all type aliases with their hex BCD
138	element ID, and all object name aliases with their GUID and default type	211	element ID, and all object name aliases with their GUID and default type
…		…
217	}	290	}
218		291
219	=head2 Minimal BCD to boot windows	292	=head2 Minimal BCD to boot windows
220		293
221	Experimentally I found the following BCD is the minimum required to	294	Experimentally I found the following BCD is the minimum required to
222	successfully boot any post-XP version of Windows (suitable C<device> and	295	successfully boot any post-XP version of Windows (assuming suitable
223	C<osdevice> values, of course):	296	C<device> and C<osdevice> values, of course, and assuming a BIOS boot -
		297	for UEFI, you should use F<winload.efi> instead of F<winload.exe>):
224		298
225	{	299	{
226	"{bootmgr}" : {	300	"{bootmgr}" : {
227	"resumeobject" : "{45b547a7-8ca6-4417-9eb0-a257b61f35b4}"	301	"default" : "{45b547a7-8ca6-4417-9eb0-a257b61f35b4}"
228	},	302	},
229		303
230	"{45b547a7-8ca6-4417-9eb0-a257b61f35b1}" : {	304	"{45b547a7-8ca6-4417-9eb0-a257b61f35b1}" : {
231	"type" : "application::osloader",	305	"type" : "application::osloader",
232	"description" : "Windows Boot",	306	"description" : "Windows Boot",
…		…
239		313
240	Note that minimal doesn't mean recommended - Windows itself will add stuff	314	Note that minimal doesn't mean recommended - Windows itself will add stuff
241	to this during or after boot, and you might or might not run into issues	315	to this during or after boot, and you might or might not run into issues
242	when installing updates as it might not be able to find the F<bootmgr>.	316	when installing updates as it might not be able to find the F<bootmgr>.
243		317
		318	This is how you would create a minimal hive with PBCDEDIT from within
		319	GNU/Linux, assuming F</dev/sdc3> is the windows partition, using
		320	a random GUID for the osloader and using C<partition> instead of
		321	C<legacypartition>:
		322
		323	osldr="{$(uuidgen)}"
		324	part=$(pbcdedit bcd-device /dev/sdc3)
		325	pbcdedit create minimal.bcd \
		326	set '{bootmgr}' default "$osldr" \
		327	set "$osldr" type application::osloader \
		328	set "$osldr" description 'Windows Boot' \
		329	set "$osldr" device "$part" \
		330	set "$osldr" osdevice "$part" \
		331	set "$osldr" path '\Windows\system32\winload.exe' \
		332	set "$osldr" systemroot '\Windows'
		333
244	=head2 The C<meta> key	334	=head2 The C<meta> key
245		335
246	The C<meta> key is not stored in the BCD data store but is used only	336	The C<meta> key is not stored in the BCD data store but is used only
247	by PBCDEDIT. It is always generated when exporting, and importing will	337	by PBCDEDIT. It is always generated when exporting, and importing will
248	be refused when it exists and the version stored inside doesn't store	338	be refused when it exists and the version stored inside doesn't match
249	the JSON schema version of PBCDEDIT. This ensures that different and	339	the JSON schema version of PBCDEDIT. This ensures that different and
250	incompatible versions of PBCDEDIT will not read and misinterpret each	340	incompatible versions of PBCDEDIT will not read and misinterpret each
251	others data.	341	others data.
252		342
253	=head2 The object keys	343	=head2 The object keys
…		…
262		352
263	Some of these GUIDs are fixed well known GUIDs which PBCDEDIT will decode	353	Some of these GUIDs are fixed well known GUIDs which PBCDEDIT will decode
264	into human-readable strings such as C<{globalsettings}>, which is the same	354	into human-readable strings such as C<{globalsettings}>, which is the same
265	as C<{7ea2e1ac-2e61-4728-aaa3-896d9d0a9f0e}>.	355	as C<{7ea2e1ac-2e61-4728-aaa3-896d9d0a9f0e}>.
266		356
267	Each BCD, object has an associated type. For example,	357	Each BCD object has an associated type. For example,
268	C<application::osloader> for objects loading Windows via F<winload.exe>,	358	C<application::osloader> for objects loading Windows via F<winload.exe>,
269	C<application::bootsector> for real mode applications and so on.	359	C<application::bootsector> for real mode applications and so on.
270		360
271	The type of a object is stored in the pseudo BCD element C<type> (see next	361	The type of a object is stored in the pseudo BCD element C<type> (see next
272	section).	362	section).
…		…
335		425
336	"displaybootmenu" : 0,	426	"displaybootmenu" : 0,
337		427
338	=item integer	428	=item integer
339		429
340	Again, very simple, this is a 64 bit integer. IT can be either specified	430	Again, very simple, this is a 64 bit integer. It can be either specified
341	as a decimal number, as a hex number (by prefixing it with C<0x>) or as a	431	as a decimal number, as a hex number (by prefixing it with C<0x>) or as a
342	binary number (prefix C<0b>).	432	binary number (prefix C<0b>).
343		433
344	For example, the boot C<timeout> is an integer, specifying the automatic	434	For example, the boot C<timeout> is an integer, specifying the automatic
345	boot delay in seconds:	435	boot delay in seconds:
…		…
347	"timeout" : 30,	437	"timeout" : 30,
348		438
349	=item integer list	439	=item integer list
350		440
351	This is a list of 64 bit integers separated by whitespace. It is not used	441	This is a list of 64 bit integers separated by whitespace. It is not used
352	much, so here is a somewhat artificial an untested example of using	442	much, so here is a somewhat artificial and untested example of using
353	C<customactions> to specify a certain custom, eh, action to be executed	443	C<customactions> to specify a certain custom, eh, action to be executed
354	when pressing C<F10> at boot:	444	when pressing C<F10> at boot:
355		445
356	"customactions" : "0x1000044000001 0x54000001",	446	"customactions" : "0x1000044000001 0x54000001",
357		447
…		…
359		449
360	This represents a single GUID value wrapped in curly braces. It is used a	450	This represents a single GUID value wrapped in curly braces. It is used a
361	lot to refer from one BCD object to other one.	451	lot to refer from one BCD object to other one.
362		452
363	For example, The C<{bootmgr}> object might refer to a resume boot option	453	For example, The C<{bootmgr}> object might refer to a resume boot option
364	using C<resumeobject>:	454	using C<default>:
365		455
366	"resumeobject" : "{7ae02178-821d-11e7-8813-1c872c5f5ab0}",	456	"default" : "{7ae02178-821d-11e7-8813-1c872c5f5ab0}",
367		457
368	Human readable aliases are used and allowed.	458	Human readable aliases are used and allowed.
369		459
370	=item guid list	460	=item guid list
371		461
…		…
385	This type is why I write I<most> are easy to explain earlier: This type	475	This type is why I write I<most> are easy to explain earlier: This type
386	is the pinnacle of Microsoft-typical hacks layered on top of other	476	is the pinnacle of Microsoft-typical hacks layered on top of other
387	hacks. Understanding this type took more time than writing all the rest of	477	hacks. Understanding this type took more time than writing all the rest of
388	PBCDEDIT, and because it is so complex, this type has its own subsection	478	PBCDEDIT, and because it is so complex, this type has its own subsection
389	below.	479	below.
		480
390	=back	481	=back
391		482
392	=head4 The BCD "device" element type	483	=head3 The BCD "device" element type
393		484
394	Device elements specify, well, devices. They are used for such diverse	485	Device elements specify, well, devices. They are used for such diverse
395	purposes such as finding a TFTP network boot image, serial ports or VMBUS	486	purposes such as finding a TFTP network boot image, serial ports or VMBUS
396	devices, but most commonly they are used to specify the disk (harddisk,	487	devices, but most commonly they are used to specify the disk (harddisk,
397	cdrom, ramdisk, vhd...) to boot from.	488	cdrom, ramdisk, vhd...) to boot from.
…		…
405	element, so almost everything known about it had to be researched first	496	element, so almost everything known about it had to be researched first
406	in the process of writing this script, and consequently, support for BCD	497	in the process of writing this script, and consequently, support for BCD
407	device elements is partial only.	498	device elements is partial only.
408		499
409	On the other hand, the expressive power of PBCDEDIT in specifying devices	500	On the other hand, the expressive power of PBCDEDIT in specifying devices
410	is much bigger than BCDEDIT and therefore more can be done with it. The	501	is much greater than BCDEDIT and therefore more can be done with it. The
411	downside is that BCD device elements are much more complicated than what	502	downside is that BCD device elements are much more complicated than what
412	you might think from reading the BCDEDIT documentation.	503	you might think from reading the BCDEDIT documentation.
413		504
414	In other words, simple things are complicated, and complicated things are	505	In other words, simple things are complicated, and complicated things are
415	possible.	506	possible.
…		…
422	[{GUID}]type[<flags>][=arg,arg...]	513	[{GUID}]type[<flags>][=arg,arg...]
423		514
424	Here are some examples:	515	Here are some examples:
425		516
426	boot	517	boot
427	{b097d29f-bc00-11e9-8a9a-525400123456}block=file,<boot>,\\EFI"	518	{b097d29f-bc00-11e9-8a9a-525400123456}block=file,<boot>,\EFI
428	locate=<null>,element,systemroot	519	locate=<null>,element,systemroot
429	partition=<null>,harddisk,mbr,47cbc08a,1048576	520	partition=<null>,harddisk,mbr,47cbc08a,1048576
430	partition=<null>,harddisk,gpt,9742e468-9206-48a0-b4e4-c4e9745a356a,76d39e5f-ad1b-407e-9c05-c81eb83b57dd	521	partition=<null>,harddisk,gpt,9742e468-9206-48a0-b4e4-c4e9745a356a,76d39e5f-ad1b-407e-9c05-c81eb83b57dd
431	block<1>=ramdisk,<partition=<null>,harddisk,mbr,47cbc08a,68720525312>,0,0,0,\Recovery\b097d29e-bc00-11e9-8a9a-525400123456\Winre.wim	522	block<1>=ramdisk,<partition=<null>,harddisk,mbr,47cbc08a,68720525312>,0,0,0,\Recovery\b097d29e-bc00-11e9-8a9a-525400123456\Winre.wim
432	block=file,<partition=<null>,harddisk,gpt,9742e468-9206-48a0-b4e4-c4e9745a356a,ee3a393a-f0de-4057-9946-88584245ed48>,\	523	block=file,<partition=<null>,harddisk,gpt,9742e468-9206-48a0-b4e4-c4e9745a356a,ee3a393a-f0de-4057-9946-88584245ed48>,\
…		…
458	the leading GUID, which it can always decode). In such cases, it will	549	the leading GUID, which it can always decode). In such cases, it will
459	convert the device into this type with a hexdump of the element data.	550	convert the device into this type with a hexdump of the element data.
460		551
461	=item C<null>	552	=item C<null>
462		553
463	This is another special type - sometimes, a device all zero-filled, which	554	This is another special type - sometimes, a device is all zero-filled,
464	is not valid. This can mark the absence of a device or something PBCDEDIT	555	which is not valid. This can mark the absence of a device or something
465	does not understand, so it decodes it into this special "all zero" type	556	PBCDEDIT does not understand, so it decodes it into this special "all
466	called C<null>.	557	zero" type called C<null>.
467		558
468	It's most commonly found in devices that can use an optional parent	559	It's most commonly found in devices that can use an optional parent
469	device, when no parent device is used.	560	device, when no parent device is used.
470		561
471	=item C<boot>	562	=item C<boot>
…		…
582		673
583	Last not least, the most complex type, C<block>, which... specifies block	674	Last not least, the most complex type, C<block>, which... specifies block
584	devices (which could be inside a F<vhdx> file for example).	675	devices (which could be inside a F<vhdx> file for example).
585		676
586	I<devicetypes> is one of C<harddisk>, C<floppy>, C<cdrom>, C<ramdisk>,	677	I<devicetypes> is one of C<harddisk>, C<floppy>, C<cdrom>, C<ramdisk>,
587	C<file> or C<vhd> - the same as for C<partiion=>.	678	C<file> or C<vhd> - the same as for C<partition=>.
588		679
589	The remaining arguments change depending on the I<devicetype>:	680	The remaining arguments change depending on the I<devicetype>:
590		681
591	=over	682	=over
592		683
…		…
622		713
623	Probably not yet implemented. Tell me of your needs...	714	Probably not yet implemented. Tell me of your needs...
624		715
625	=back	716	=back
626		717
627	=back5 Examples	718	=back
		719
		720	=head4 Examples
628		721
629	This concludes the syntax overview for device elements, but probably	722	This concludes the syntax overview for device elements, but probably
630	leaves many questions open. I can't help with most of them, as I also ave	723	leaves many questions open. I can't help with most of them, as I also have
631	many questions, but I can walk you through some actual examples using more	724	many questions, but I can walk you through some actual examples using more
632	complex aspects.	725	complex aspects.
		726
		727	=over
633		728
634	=item C<< locate=<block=vhd,<block=file,<locate=<null>,path,\disk.vhdx>,\disk.vhdx>>,element,path >>	729	=item C<< locate=<block=vhd,<block=file,<locate=<null>,path,\disk.vhdx>,\disk.vhdx>>,element,path >>
635		730
636	Just like with C declarations, you best treat device descriptors as	731	Just like with C declarations, you best treat device descriptors as
637	instructions to find your device and work your way from the inside out:	732	instructions to find your device and work your way from the inside out:
…		…
709	I don't know what the purpose of the C<< <1> >> flag value is, but it	804	I don't know what the purpose of the C<< <1> >> flag value is, but it
710	seems to be always there on this kind of entry.	805	seems to be always there on this kind of entry.
711		806
712	If you have some good examples to add here, feel free to mail me.	807	If you have some good examples to add here, feel free to mail me.
713		808
		809	=back
		810
714		811
715	=head1 EDITING BCD STORES	812	=head1 EDITING BCD STORES
716		813
717	The C<edit> and C<parse> subcommands allow you to read a BCD data store	814	The C<edit> and C<parse> subcommands allow you to read a BCD data store
718	and modify it or extract data from it. This is done by executing a series	815	and modify it or extract data from it. This is done by executing a series
…		…
736	Similar to C<get>, but sets the element to the given I<value> instead.	833	Similar to C<get>, but sets the element to the given I<value> instead.
737		834
738	Example: change the bootmgr default too	835	Example: change the bootmgr default too
739	C<{b097d2ad-bc00-11e9-8a9a-525400123456}>:	836	C<{b097d2ad-bc00-11e9-8a9a-525400123456}>:
740		837
741	pbcdedit edit BCD set "{bootmgr}" resumeobject "{b097d2ad-bc00-11e9-8a9a-525400123456}"	838	pbcdedit edit BCD set "{bootmgr}" default "{b097d2ad-bc00-11e9-8a9a-525400123456}"
		839
		840	=item C<del> I<object> I<element>
		841
		842	Similar to C<get>, but removed the BCD element from the specified BCD object.
742		843
743	=item C<eval> I<perlcode>	844	=item C<eval> I<perlcode>
744		845
745	This takes the next argument, interprets it as Perl code and	846	This takes the next argument, interprets it as Perl code and
746	evaluates it. This allows you to do more complicated modifications or	847	evaluates it. This allows you to do more complicated modifications or
…		…
769		870
770	pbcdedit edit BCD eval 'say $BCD->{$DEFAULT}{description}'	871	pbcdedit edit BCD eval 'say $BCD->{$DEFAULT}{description}'
771		872
772	The example given for C<set> could be expressed like this:	873	The example given for C<set> could be expressed like this:
773		874
774	pbcdedit edit BCD eval '$BCD->{$DEFAULT}{resumeobject} = "{b097d2ad-bc00-11e9-8a9a-525400123456}"'	875	pbcdedit edit BCD eval '$BCD->{"{bootmgr}"{default} = "{b097d2ad-bc00-11e9-8a9a-525400123456}"'
775		876
776	=item C<do> I<path>	877	=item C<do> I<path>
777		878
778	Similar to C<eval>, above, but instead of using the argument as perl code,	879	Similar to C<eval>, above, but instead of using the argument as perl code,
779	it loads the perl code from the given file and executes it. This makes it	880	it loads the perl code from the given file and executes it. This makes it
…		…
825	permitted by law.	926	permitted by law.
826		927
827	=cut	928	=cut
828		929
829	# common sense is optional, but recommended	930	# common sense is optional, but recommended
830	#BEGIN { eval { require "common/sensex.pm"; } && common::sensex->import }	931	BEGIN { eval { require "common/sense.pm"; } && common::sense->import }
831	no warnings;	932
832	no strict;	933	no warnings 'portable'; # avoid 32 bit integer warnings
833		934
834	use Encode ();	935	use Encode ();
835	use List::Util ();	936	use List::Util ();
836	use IO::Handle ();	937	use IO::Handle ();
837	use Time::HiRes ();	938	use Time::HiRes ();
…		…
847		948
848	# hack used for debugging	949	# hack used for debugging
849	sub xxd($$) {	950	sub xxd($$) {
850	open my $xxd, "| xxd | sed -e 's/^/\Q$_[0]\E: /'";	951	open my $xxd, "| xxd | sed -e 's/^/\Q$_[0]\E: /'";
851	syswrite $xxd, $_[1];	952	syswrite $xxd, $_[1];
		953	}
		954
		955	# get some meta info on a file (uid, gid, perms)
		956	sub stat_get($) {
		957	[(stat shift)[4, 5, 2]]
		958	}
		959
		960	# set stat info on a file
		961	sub stat_set($$) {
		962	my ($fh_or_path, $stat) = @_;
		963
		964	return unless $stat;
		965	chown $stat->[0], $stat->[1], $fh_or_path;
		966	chmod +($stat->[2] & 07777), $fh_or_path;
852	}	967	}
853		968
854	sub file_load($) {	969	sub file_load($) {
855	my ($path) = @_;	970	my ($path) = @_;
856		971
…		…
859	my $size = -s $fh;	974	my $size = -s $fh;
860	$size = read $fh, my $buf, $size	975	$size = read $fh, my $buf, $size
861	or die "$path: short read\n";	976	or die "$path: short read\n";
862		977
863	$buf	978	$buf
		979	}
		980
		981	sub file_save($$;$) {
		982	my ($path, $data, $stat) = @_;
		983
		984	open my $fh, ">:raw", "$path~"
		985	or die "$path~: $!\n";
		986	print $fh $data
		987	or die "$path~: short write\n";
		988	stat_set $fh, $stat;
		989	$fh->sync;
		990	close $fh;
		991
		992	rename "$path~", $path;
864	}	993	}
865		994
866	# sources and resources used for writing pbcdedit	995	# sources and resources used for writing pbcdedit
867	#	996	#
868	# registry:	997	# registry:
…		…
1054	my ($rname, $root) = $decode_key->($rootcell);	1183	my ($rname, $root) = $decode_key->($rootcell);
1055		1184
1056	[$rname, $root]	1185	[$rname, $root]
1057	}	1186	}
1058		1187
1059	# return a binary windows fILETIME struct	1188	# return a binary windows FILETIME struct
1060	sub filetime_now {	1189	sub filetime_now {
1061	my ($s, $ms) = Time::HiRes::gettimeofday;	1190	my ($s, $ms) = Time::HiRes::gettimeofday;
1062		1191
1063	pack "Q<", $s = ($s * 1_000_000 + $ms) * 10 + 116_444_736_000_000_000	1192	pack "Q<", ($s * 1_000_000 + $ms) * 10
		1193	+ 116_444_736_000_000_000 # 1970-01-01 00:00:00
1064	}	1194	}
1065		1195
1066	# encode a registry hive	1196	# encode a registry hive
1067	sub regf_encode($) {	1197	sub regf_encode($) {
1068	my ($hive) = @_;	1198	my ($hive) = @_;
…		…
1071		1201
1072	# the filetime is apparently used to verify log file validity,	1202	# the filetime is apparently used to verify log file validity,
1073	# so by generating a new timestamp the log files *should* automatically	1203	# so by generating a new timestamp the log files *should* automatically
1074	# become invalidated and windows would "self-heal" them.	1204	# become invalidated and windows would "self-heal" them.
1075	# (update: has been verified by reverse engineering)	1205	# (update: has been verified by reverse engineering)
1076	# possibly the fact that the two sequence numbes match might also	1206	# possibly the fact that the two sequence numbers match might also
1077	# make windows think that the hive is not dirty and ignore logs.	1207	# make windows think that the hive is not dirty and ignore logs.
1078	# (update: has been verified by reverse engineering)	1208	# (update: has been verified by reverse engineering)
1079		1209
1080	my $now = filetime_now;	1210	my $now = filetime_now;
1081		1211
…		…
1225		1355
1226	regf_decode file_load $path	1356	regf_decode file_load $path
1227	}	1357	}
1228		1358
1229	# encode and save registry to file	1359	# encode and save registry to file
1230	sub regf_save {	1360	sub regf_save($$;$) {
1231	my ($path, $hive) = @_;	1361	my ($path, $hive, $stat) = @_;
1232		1362
1233	$hive = regf_encode $hive;	1363	$hive = regf_encode $hive;
1234		1364
1235	open my $regf, ">:raw", "$path~"	1365	file_save $path, $hive, $stat;
1236	or die "$path~: $!\n";
1237	print $regf $hive
1238	or die "$path~: short write\n";
1239	$regf->sync;
1240	close $regf;
1241
1242	rename "$path~", $path;
1243	}	1366	}
1244		1367
1245	#############################################################################	1368	#############################################################################
1246	# bcd stuff	1369	# bcd stuff
1247		1370
1248	# human-readable alises for GUID object identifiers	1371	# human-readable aliases for GUID object identifiers
1249	our %bcd_objects = (	1372	our %bcd_objects = (
1250	'{0ce4991b-e6b3-4b16-b23c-5e0d9250e5d9}' => '{emssettings}',	1373	'{0ce4991b-e6b3-4b16-b23c-5e0d9250e5d9}' => '{emssettings}',
1251	'{1afa9c49-16ab-4a5c-4a90-212802da9460}' => '{resumeloadersettings}',	1374	'{1afa9c49-16ab-4a5c-4a90-212802da9460}' => '{resumeloadersettings}',
1252	'{1cae1eb7-a0df-4d4d-9851-4860e34ef535}' => '{default}',	1375	'{1cae1eb7-a0df-4d4d-9851-4860e34ef535}' => '{default}',
1253	'{313e8eed-7098-4586-a9bf-309c61f8d449}' => '{kerneldbgsettings}',	1376	'{313e8eed-7098-4586-a9bf-309c61f8d449}' => '{kerneldbgsettings}',
…		…
1360	sub BCDE_FORMAT_GUID_LIST () { 0x04000000 }	1483	sub BCDE_FORMAT_GUID_LIST () { 0x04000000 }
1361	sub BCDE_FORMAT_INTEGER () { 0x05000000 }	1484	sub BCDE_FORMAT_INTEGER () { 0x05000000 }
1362	sub BCDE_FORMAT_BOOLEAN () { 0x06000000 }	1485	sub BCDE_FORMAT_BOOLEAN () { 0x06000000 }
1363	sub BCDE_FORMAT_INTEGER_LIST () { 0x07000000 }	1486	sub BCDE_FORMAT_INTEGER_LIST () { 0x07000000 }
1364		1487
1365	sub dec_device;
1366	sub enc_device;
1367
1368	sub enc_integer($) {	1488	sub enc_integer($) {
1369	no warnings 'portable'; # ugh
1370	my $value = shift;	1489	my $value = shift;
1371	$value = oct $value if $value =~ /^0[bBxX]/;	1490	$value = oct $value if $value =~ /^0[bBxX]/;
1372	unpack "H*", pack "Q<", $value	1491	unpack "H*", pack "Q<", $value
1373	}	1492	}
		1493
		1494	sub enc_device($$);
		1495	sub dec_device($$);
1374		1496
1375	our %bcde_dec = (	1497	our %bcde_dec = (
1376	BCDE_FORMAT_DEVICE , \&dec_device,	1498	BCDE_FORMAT_DEVICE , \&dec_device,
1377	# # for round-trip verification	1499	# # for round-trip verification
1378	# BCDE_FORMAT_DEVICE , sub {	1500	# BCDE_FORMAT_DEVICE , sub {
…		…
1384	BCDE_FORMAT_STRING , sub { shift },	1506	BCDE_FORMAT_STRING , sub { shift },
1385	BCDE_FORMAT_GUID , sub { dec_wguid enc_wguid shift },	1507	BCDE_FORMAT_GUID , sub { dec_wguid enc_wguid shift },
1386	BCDE_FORMAT_GUID_LIST , sub { join " ", map dec_wguid enc_wguid $_, @{+shift} },	1508	BCDE_FORMAT_GUID_LIST , sub { join " ", map dec_wguid enc_wguid $_, @{+shift} },
1387	BCDE_FORMAT_INTEGER , sub { unpack "Q", pack "a8", pack "H*", shift }, # integer might be 4 or 8 bytes - caused by ms coding bugs	1509	BCDE_FORMAT_INTEGER , sub { unpack "Q", pack "a8", pack "H*", shift }, # integer might be 4 or 8 bytes - caused by ms coding bugs
1388	BCDE_FORMAT_BOOLEAN , sub { shift eq "00" ? 0 : 1 },	1510	BCDE_FORMAT_BOOLEAN , sub { shift eq "00" ? 0 : 1 },
1389	BCDE_FORMAT_INTEGER_LIST, sub { join " ", unpack "Q*", pack "H*", shift }, # not sure if this cna be 4 bytes	1511	BCDE_FORMAT_INTEGER_LIST, sub { join " ", unpack "Q*", pack "H*", shift }, # not sure if this can be 4 bytes
1390	);	1512	);
1391		1513
1392	our %bcde_enc = (	1514	our %bcde_enc = (
1393	BCDE_FORMAT_DEVICE , sub { binary => enc_device shift },	1515	BCDE_FORMAT_DEVICE , sub { binary => enc_device $_[0], $_[1] },
1394	BCDE_FORMAT_STRING , sub { sz => shift },	1516	BCDE_FORMAT_STRING , sub { sz => shift },
1395	BCDE_FORMAT_GUID , sub { sz => "{" . (dec_guid enc_wguid shift) . "}" },	1517	BCDE_FORMAT_GUID , sub { sz => "{" . (dec_guid enc_wguid shift) . "}" },
1396	BCDE_FORMAT_GUID_LIST , sub { multi_sz => [map "{" . (dec_guid enc_wguid $_) . "}", split /\s+/, shift ] },	1518	BCDE_FORMAT_GUID_LIST , sub { multi_sz => [map "{" . (dec_guid enc_wguid $_) . "}", split /\s+/, shift ] },
1397	BCDE_FORMAT_INTEGER , sub { binary => enc_integer shift },	1519	BCDE_FORMAT_INTEGER , sub { binary => enc_integer shift },
1398	BCDE_FORMAT_BOOLEAN , sub { binary => shift ? "01" : "00" },	1520	BCDE_FORMAT_BOOLEAN , sub { binary => shift ? "01" : "00" },
1399	BCDE_FORMAT_INTEGER_LIST, sub { binary => join "", map enc_integer $_, split /\s+/, shift },	1521	BCDE_FORMAT_INTEGER_LIST, sub { binary => join "", map enc_integer $_, split /\s+/, shift },
1400	);	1522	);
1401		1523
1402	# BCD Elements	1524	# BCD Elements
1403	our %bcde = (	1525	our %bcde_byclass = (
		1526	any => {
1404	0x11000001 => 'device',	1527	0x11000001 => 'device',
1405	0x12000002 => 'path',	1528	0x12000002 => 'path',
1406	0x12000004 => 'description',	1529	0x12000004 => 'description',
1407	0x12000005 => 'locale',	1530	0x12000005 => 'locale',
1408	0x14000006 => 'inherit',	1531	0x14000006 => 'inherit',
1409	0x15000007 => 'truncatememory',	1532	0x15000007 => 'truncatememory',
1410	0x14000008 => 'recoverysequence',	1533	0x14000008 => 'recoverysequence',
1411	0x16000009 => 'recoveryenabled',	1534	0x16000009 => 'recoveryenabled',
1412	0x1700000a => 'badmemorylist',	1535	0x1700000a => 'badmemorylist',
1413	0x1600000b => 'badmemoryaccess',	1536	0x1600000b => 'badmemoryaccess',
1414	0x1500000c => 'firstmegabytepolicy',	1537	0x1500000c => 'firstmegabytepolicy',
1415	0x1500000d => 'relocatephysical',	1538	0x1500000d => 'relocatephysical',
1416	0x1500000e => 'avoidlowmemory',	1539	0x1500000e => 'avoidlowmemory',
1417	0x1600000f => 'traditionalkseg',	1540	0x1600000f => 'traditionalkseg',
1418	0x16000010 => 'bootdebug',	1541	0x16000010 => 'bootdebug',
1419	0x15000011 => 'debugtype',	1542	0x15000011 => 'debugtype',
1420	0x15000012 => 'debugaddress',	1543	0x15000012 => 'debugaddress',
1421	0x15000013 => 'debugport',	1544	0x15000013 => 'debugport',
1422	0x15000014 => 'baudrate',	1545	0x15000014 => 'baudrate',
1423	0x15000015 => 'channel',	1546	0x15000015 => 'channel',
1424	0x12000016 => 'targetname',	1547	0x12000016 => 'targetname',
1425	0x16000017 => 'noumex',	1548	0x16000017 => 'noumex',
1426	0x15000018 => 'debugstart',	1549	0x15000018 => 'debugstart',
1427	0x12000019 => 'busparams',	1550	0x12000019 => 'busparams',
1428	0x1500001a => 'hostip',	1551	0x1500001a => 'hostip',
1429	0x1500001b => 'port',	1552	0x1500001b => 'port',
1430	0x1600001c => 'dhcp',	1553	0x1600001c => 'dhcp',
1431	0x1200001d => 'key',	1554	0x1200001d => 'key',
1432	0x1600001e => 'vm',	1555	0x1600001e => 'vm',
1433	0x16000020 => 'bootems',	1556	0x16000020 => 'bootems',
1434	0x15000022 => 'emsport',	1557	0x15000022 => 'emsport',
1435	0x15000023 => 'emsbaudrate',	1558	0x15000023 => 'emsbaudrate',
1436	0x12000030 => 'loadoptions',	1559	0x12000030 => 'loadoptions',
1437	0x16000040 => 'advancedoptions',	1560	0x16000040 => 'advancedoptions',
1438	0x16000041 => 'optionsedit',	1561	0x16000041 => 'optionsedit',
1439	0x15000042 => 'keyringaddress',	1562	0x15000042 => 'keyringaddress',
1440	0x11000043 => 'bootstatdevice',	1563	0x11000043 => 'bootstatdevice',
1441	0x12000044 => 'bootstatfilepath',	1564	0x12000044 => 'bootstatfilepath',
1442	0x16000045 => 'preservebootstat',	1565	0x16000045 => 'preservebootstat',
1443	0x16000046 => 'graphicsmodedisabled',	1566	0x16000046 => 'graphicsmodedisabled',
1444	0x15000047 => 'configaccesspolicy',	1567	0x15000047 => 'configaccesspolicy',
1445	0x16000048 => 'nointegritychecks',	1568	0x16000048 => 'nointegritychecks',
1446	0x16000049 => 'testsigning',	1569	0x16000049 => 'testsigning',
1447	0x1200004a => 'fontpath',	1570	0x1200004a => 'fontpath',
1448	0x1500004b => 'integrityservices',	1571	0x1500004b => 'integrityservices',
1449	0x1500004c => 'volumebandid',	1572	0x1500004c => 'volumebandid',
1450	0x16000050 => 'extendedinput',	1573	0x16000050 => 'extendedinput',
1451	0x15000051 => 'initialconsoleinput',	1574	0x15000051 => 'initialconsoleinput',
1452	0x15000052 => 'graphicsresolution',	1575	0x15000052 => 'graphicsresolution',
1453	0x16000053 => 'restartonfailure',	1576	0x16000053 => 'restartonfailure',
1454	0x16000054 => 'highestmode',	1577	0x16000054 => 'highestmode',
1455	0x16000060 => 'isolatedcontext',	1578	0x16000060 => 'isolatedcontext',
1456	0x15000065 => 'displaymessage',	1579	0x15000065 => 'displaymessage',
1457	0x15000066 => 'displaymessageoverride',	1580	0x15000066 => 'displaymessageoverride',
1458	0x16000068 => 'nobootuxtext',	1581	0x16000068 => 'nobootuxtext',
1459	0x16000069 => 'nobootuxprogress',	1582	0x16000069 => 'nobootuxprogress',
1460	0x1600006a => 'nobootuxfade',	1583	0x1600006a => 'nobootuxfade',
1461	0x1600006b => 'bootuxreservepooldebug',	1584	0x1600006b => 'bootuxreservepooldebug',
1462	0x1600006c => 'bootuxdisabled',	1585	0x1600006c => 'bootuxdisabled',
1463	0x1500006d => 'bootuxfadeframes',	1586	0x1500006d => 'bootuxfadeframes',
1464	0x1600006e => 'bootuxdumpstats',	1587	0x1600006e => 'bootuxdumpstats',
1465	0x1600006f => 'bootuxshowstats',	1588	0x1600006f => 'bootuxshowstats',
1466	0x16000071 => 'multibootsystem',	1589	0x16000071 => 'multibootsystem',
1467	0x16000072 => 'nokeyboard',	1590	0x16000072 => 'nokeyboard',
1468	0x15000073 => 'aliaswindowskey',	1591	0x15000073 => 'aliaswindowskey',
1469	0x16000074 => 'bootshutdowndisabled',	1592	0x16000074 => 'bootshutdowndisabled',
1470	0x15000075 => 'performancefrequency',	1593	0x15000075 => 'performancefrequency',
1471	0x15000076 => 'securebootrawpolicy',	1594	0x15000076 => 'securebootrawpolicy',
1472	0x17000077 => 'allowedinmemorysettings',	1595	0x17000077 => 'allowedinmemorysettings',
1473	0x15000079 => 'bootuxtransitiontime',	1596	0x15000079 => 'bootuxtransitiontime',
1474	0x1600007a => 'mobilegraphics',	1597	0x1600007a => 'mobilegraphics',
1475	0x1600007b => 'forcefipscrypto',	1598	0x1600007b => 'forcefipscrypto',
1476	0x1500007d => 'booterrorux',	1599	0x1500007d => 'booterrorux',
1477	0x1600007e => 'flightsigning',	1600	0x1600007e => 'flightsigning',
1478	0x1500007f => 'measuredbootlogformat',	1601	0x1500007f => 'measuredbootlogformat',
1479	0x15000080 => 'displayrotation',	1602	0x15000080 => 'displayrotation',
1480	0x15000081 => 'logcontrol',	1603	0x15000081 => 'logcontrol',
1481	0x16000082 => 'nofirmwaresync',	1604	0x16000082 => 'nofirmwaresync',
1482	0x11000084 => 'windowssyspart',	1605	0x11000084 => 'windowssyspart',
1483	0x16000087 => 'numlock',	1606	0x16000087 => 'numlock',
1484	0x22000001 => 'bpbstring',	1607	0x26000202 => 'skipffumode',
		1608	0x26000203 => 'forceffumode',
		1609	0x25000510 => 'chargethreshold',
		1610	0x26000512 => 'offmodecharging',
		1611	0x25000aaa => 'bootflow',
		1612	0x45000001 => 'devicetype',
		1613	0x42000002 => 'applicationrelativepath',
		1614	0x42000003 => 'ramdiskdevicerelativepath',
		1615	0x46000004 => 'omitosloaderelements',
		1616	0x47000006 => 'elementstomigrate',
		1617	0x46000010 => 'recoveryos',
		1618	},
		1619	bootapp => {
		1620	0x26000145 => 'enablebootdebugpolicy',
		1621	0x26000146 => 'enablebootorderclean',
		1622	0x26000147 => 'enabledeviceid',
		1623	0x26000148 => 'enableffuloader',
		1624	0x26000149 => 'enableiuloader',
		1625	0x2600014a => 'enablemassstorage',
		1626	0x2600014b => 'enablerpmbprovisioning',
		1627	0x2600014c => 'enablesecurebootpolicy',
		1628	0x2600014d => 'enablestartcharge',
		1629	0x2600014e => 'enableresettpm',
		1630	},
		1631	bootmgr => {
1485	0x24000001 => 'displayorder',	1632	0x24000001 => 'displayorder',
1486	0x21000001 => 'filedevice',
1487	0x21000001 => 'osdevice',
1488	0x25000001 => 'passcount',
1489	0x26000001 => 'pxesoftreboot',
1490	0x22000002 => 'applicationname',
1491	0x24000002 => 'bootsequence',	1633	0x24000002 => 'bootsequence',
1492	0x22000002 => 'filepath',
1493	0x22000002 => 'systemroot',
1494	0x25000002 => 'testmix',
1495	0x26000003 => 'cacheenable',
1496	0x26000003 => 'customsettings',
1497	0x23000003 => 'default',	1634	0x23000003 => 'default',
1498	0x25000003 => 'failurecount',
1499	0x23000003 => 'resumeobject',
1500	0x26000004 => 'failuresenabled',
1501	0x26000004 => 'pae',
1502	0x26000004 => 'stampdisks',
1503	0x25000004 => 'testtofail',
1504	0x25000004 => 'timeout',	1635	0x25000004 => 'timeout',
1505	0x21000005 => 'associatedosdevice',
1506	0x26000005 => 'cacheenable',
1507	0x26000005 => 'resume',	1636	0x26000005 => 'resume',
1508	0x25000005 => 'stridefailcount',
1509	0x26000006 => 'debugoptionenabled',
1510	0x25000006 => 'invcfailcount',
1511	0x23000006 => 'resumeobject',	1637	0x23000006 => 'resumeobject',
1512	0x25000007 => 'bootux',
1513	0x25000007 => 'matsfailcount',
1514	0x24000007 => 'startupsequence',	1638	0x24000007 => 'startupsequence',
1515	0x25000008 => 'bootmenupolicy',
1516	0x25000008 => 'randfailcount',
1517	0x25000009 => 'chckrfailcount',
1518	0x26000010 => 'detecthal',
1519	0x24000010 => 'toolsdisplayorder',	1639	0x24000010 => 'toolsdisplayorder',
1520	0x22000011 => 'kernel',
1521	0x22000012 => 'hal',
1522	0x22000013 => 'dbgtransport',
1523	0x26000020 => 'displaybootmenu',	1640	0x26000020 => 'displaybootmenu',
1524	0x25000020 => 'nx',
1525	0x26000021 => 'noerrordisplay',	1641	0x26000021 => 'noerrordisplay',
1526	0x25000021 => 'pae',
1527	0x21000022 => 'bcddevice',	1642	0x21000022 => 'bcddevice',
1528	0x26000022 => 'winpe',
1529	0x22000023 => 'bcdfilepath',	1643	0x22000023 => 'bcdfilepath',
1530	0x26000024 => 'hormenabled',	1644	0x26000024 => 'hormenabled',
1531	0x26000024 => 'hormenabled',
1532	0x26000024 => 'nocrashautoreboot',
1533	0x26000025 => 'hiberboot',	1645	0x26000025 => 'hiberboot',
1534	0x26000025 => 'lastknowngood',
1535	0x26000026 => 'oslnointegritychecks',
1536	0x22000026 => 'passwordoverride',	1646	0x22000026 => 'passwordoverride',
1537	0x26000027 => 'osltestsigning',
1538	0x22000027 => 'pinpassphraseoverride',	1647	0x22000027 => 'pinpassphraseoverride',
1539	0x26000028 => 'processcustomactionsfirst',	1648	0x26000028 => 'processcustomactionsfirst',
1540	0x27000030 => 'customactions',	1649	0x27000030 => 'customactions',
1541	0x26000030 => 'nolowmem',
1542	0x26000031 => 'persistbootsequence',	1650	0x26000031 => 'persistbootsequence',
1543	0x25000031 => 'removememory',
1544	0x25000032 => 'increaseuserva',
1545	0x26000032 => 'skipstartupsequence',	1651	0x26000032 => 'skipstartupsequence',
1546	0x25000033 => 'perfmem',
1547	0x22000040 => 'fverecoveryurl',	1652	0x22000040 => 'fverecoveryurl',
1548	0x26000040 => 'vga',
1549	0x22000041 => 'fverecoverymessage',	1653	0x22000041 => 'fverecoverymessage',
		1654	},
		1655	device => {
		1656	0x35000001 => 'ramdiskimageoffset',
		1657	0x35000002 => 'ramdisktftpclientport',
		1658	0x31000003 => 'ramdisksdidevice',
		1659	0x32000004 => 'ramdisksdipath',
		1660	0x35000005 => 'ramdiskimagelength',
		1661	0x36000006 => 'exportascd',
		1662	0x35000007 => 'ramdisktftpblocksize',
		1663	0x35000008 => 'ramdisktftpwindowsize',
		1664	0x36000009 => 'ramdiskmcenabled',
		1665	0x3600000a => 'ramdiskmctftpfallback',
		1666	0x3600000b => 'ramdisktftpvarwindow',
		1667	},
		1668	memdiag => {
		1669	0x25000001 => 'passcount',
		1670	0x25000002 => 'testmix',
		1671	0x25000003 => 'failurecount',
		1672	0x26000003 => 'cacheenable',
		1673	0x25000004 => 'testtofail',
		1674	0x26000004 => 'failuresenabled',
		1675	0x25000005 => 'stridefailcount',
		1676	0x26000005 => 'cacheenable',
		1677	0x25000006 => 'invcfailcount',
		1678	0x25000007 => 'matsfailcount',
		1679	0x25000008 => 'randfailcount',
		1680	0x25000009 => 'chckrfailcount',
		1681	},
		1682	ntldr => {
		1683	0x22000001 => 'bpbstring',
		1684	},
		1685	osloader => {
		1686	0x21000001 => 'osdevice',
		1687	0x22000002 => 'systemroot',
		1688	0x23000003 => 'resumeobject',
		1689	0x26000004 => 'stampdisks',
		1690	0x26000010 => 'detecthal',
		1691	0x22000011 => 'kernel',
		1692	0x22000012 => 'hal',
		1693	0x22000013 => 'dbgtransport',
		1694	0x25000020 => 'nx',
		1695	0x25000021 => 'pae',
		1696	0x26000022 => 'winpe',
		1697	0x26000024 => 'nocrashautoreboot',
		1698	0x26000025 => 'lastknowngood',
		1699	0x26000026 => 'oslnointegritychecks',
		1700	0x26000027 => 'osltestsigning',
		1701	0x26000030 => 'nolowmem',
		1702	0x25000031 => 'removememory',
		1703	0x25000032 => 'increaseuserva',
		1704	0x25000033 => 'perfmem',
		1705	0x26000040 => 'vga',
1550	0x26000041 => 'quietboot',	1706	0x26000041 => 'quietboot',
1551	0x26000042 => 'novesa',	1707	0x26000042 => 'novesa',
1552	0x26000043 => 'novga',	1708	0x26000043 => 'novga',
1553	0x25000050 => 'clustermodeaddressing',	1709	0x25000050 => 'clustermodeaddressing',
1554	0x26000051 => 'usephysicaldestination',	1710	0x26000051 => 'usephysicaldestination',
1555	0x25000052 => 'restrictapiccluster',	1711	0x25000052 => 'restrictapiccluster',
1556	0x22000053 => 'evstore',	1712	0x22000053 => 'evstore',
1557	0x26000054 => 'uselegacyapicmode',	1713	0x26000054 => 'uselegacyapicmode',
1558	0x26000060 => 'onecpu',	1714	0x26000060 => 'onecpu',
1559	0x25000061 => 'numproc',	1715	0x25000061 => 'numproc',
1560	0x26000062 => 'maxproc',	1716	0x26000062 => 'maxproc',
1561	0x25000063 => 'configflags',	1717	0x25000063 => 'configflags',
1562	0x26000064 => 'maxgroup',	1718	0x26000064 => 'maxgroup',
1563	0x26000065 => 'groupaware',	1719	0x26000065 => 'groupaware',
1564	0x25000066 => 'groupsize',	1720	0x25000066 => 'groupsize',
1565	0x26000070 => 'usefirmwarepcisettings',	1721	0x26000070 => 'usefirmwarepcisettings',
1566	0x25000071 => 'msi',	1722	0x25000071 => 'msi',
1567	0x25000072 => 'pciexpress',	1723	0x25000072 => 'pciexpress',
1568	0x25000080 => 'safeboot',	1724	0x25000080 => 'safeboot',
1569	0x26000081 => 'safebootalternateshell',	1725	0x26000081 => 'safebootalternateshell',
1570	0x26000090 => 'bootlog',	1726	0x26000090 => 'bootlog',
1571	0x26000091 => 'sos',	1727	0x26000091 => 'sos',
1572	0x260000a0 => 'debug',	1728	0x260000a0 => 'debug',
1573	0x260000a1 => 'halbreakpoint',	1729	0x260000a1 => 'halbreakpoint',
1574	0x260000a2 => 'useplatformclock',	1730	0x260000a2 => 'useplatformclock',
1575	0x260000a3 => 'forcelegacyplatform',	1731	0x260000a3 => 'forcelegacyplatform',
1576	0x260000a4 => 'useplatformtick',	1732	0x260000a4 => 'useplatformtick',
1577	0x260000a5 => 'disabledynamictick',	1733	0x260000a5 => 'disabledynamictick',
1578	0x250000a6 => 'tscsyncpolicy',	1734	0x250000a6 => 'tscsyncpolicy',
1579	0x260000b0 => 'ems',	1735	0x260000b0 => 'ems',
1580	0x250000c0 => 'forcefailure',	1736	0x250000c0 => 'forcefailure',
1581	0x250000c1 => 'driverloadfailurepolicy',	1737	0x250000c1 => 'driverloadfailurepolicy',
1582	0x250000c2 => 'bootmenupolicy',	1738	0x250000c2 => 'bootmenupolicy',
1583	0x260000c3 => 'onetimeadvancedoptions',	1739	0x260000c3 => 'onetimeadvancedoptions',
1584	0x260000c4 => 'onetimeoptionsedit',	1740	0x260000c4 => 'onetimeoptionsedit',
1585	0x250000e0 => 'bootstatuspolicy',	1741	0x250000e0 => 'bootstatuspolicy',
1586	0x260000e1 => 'disableelamdrivers',	1742	0x260000e1 => 'disableelamdrivers',
1587	0x250000f0 => 'hypervisorlaunchtype',	1743	0x250000f0 => 'hypervisorlaunchtype',
1588	0x220000f1 => 'hypervisorpath',	1744	0x220000f1 => 'hypervisorpath',
1589	0x260000f2 => 'hypervisordebug',	1745	0x260000f2 => 'hypervisordebug',
1590	0x250000f3 => 'hypervisordebugtype',	1746	0x250000f3 => 'hypervisordebugtype',
1591	0x250000f4 => 'hypervisordebugport',	1747	0x250000f4 => 'hypervisordebugport',
1592	0x250000f5 => 'hypervisorbaudrate',	1748	0x250000f5 => 'hypervisorbaudrate',
1593	0x250000f6 => 'hypervisorchannel',	1749	0x250000f6 => 'hypervisorchannel',
1594	0x250000f7 => 'bootux',	1750	0x250000f7 => 'bootux',
1595	0x260000f8 => 'hypervisordisableslat',	1751	0x260000f8 => 'hypervisordisableslat',
1596	0x220000f9 => 'hypervisorbusparams',	1752	0x220000f9 => 'hypervisorbusparams',
1597	0x250000fa => 'hypervisornumproc',	1753	0x250000fa => 'hypervisornumproc',
1598	0x250000fb => 'hypervisorrootprocpernode',	1754	0x250000fb => 'hypervisorrootprocpernode',
1599	0x260000fc => 'hypervisoruselargevtlb',	1755	0x260000fc => 'hypervisoruselargevtlb',
1600	0x250000fd => 'hypervisorhostip',	1756	0x250000fd => 'hypervisorhostip',
1601	0x250000fe => 'hypervisorhostport',	1757	0x250000fe => 'hypervisorhostport',
1602	0x250000ff => 'hypervisordebugpages',	1758	0x250000ff => 'hypervisordebugpages',
1603	0x25000100 => 'tpmbootentropy',	1759	0x25000100 => 'tpmbootentropy',
1604	0x22000110 => 'hypervisorusekey',	1760	0x22000110 => 'hypervisorusekey',
1605	0x22000112 => 'hypervisorproductskutype',	1761	0x22000112 => 'hypervisorproductskutype',
1606	0x25000113 => 'hypervisorrootproc',	1762	0x25000113 => 'hypervisorrootproc',
1607	0x26000114 => 'hypervisordhcp',	1763	0x26000114 => 'hypervisordhcp',
1608	0x25000115 => 'hypervisoriommupolicy',	1764	0x25000115 => 'hypervisoriommupolicy',
1609	0x26000116 => 'hypervisorusevapic',	1765	0x26000116 => 'hypervisorusevapic',
1610	0x22000117 => 'hypervisorloadoptions',	1766	0x22000117 => 'hypervisorloadoptions',
1611	0x25000118 => 'hypervisormsrfilterpolicy',	1767	0x25000118 => 'hypervisormsrfilterpolicy',
1612	0x25000119 => 'hypervisormmionxpolicy',	1768	0x25000119 => 'hypervisormmionxpolicy',
1613	0x2500011a => 'hypervisorschedulertype',	1769	0x2500011a => 'hypervisorschedulertype',
1614	0x25000120 => 'xsavepolicy',	1770	0x25000120 => 'xsavepolicy',
1615	0x25000121 => 'xsaveaddfeature0',	1771	0x25000121 => 'xsaveaddfeature0',
1616	0x25000122 => 'xsaveaddfeature1',	1772	0x25000122 => 'xsaveaddfeature1',
1617	0x25000123 => 'xsaveaddfeature2',	1773	0x25000123 => 'xsaveaddfeature2',
1618	0x25000124 => 'xsaveaddfeature3',	1774	0x25000124 => 'xsaveaddfeature3',
1619	0x25000125 => 'xsaveaddfeature4',	1775	0x25000125 => 'xsaveaddfeature4',
1620	0x25000126 => 'xsaveaddfeature5',	1776	0x25000126 => 'xsaveaddfeature5',
1621	0x25000127 => 'xsaveaddfeature6',	1777	0x25000127 => 'xsaveaddfeature6',
1622	0x25000128 => 'xsaveaddfeature7',	1778	0x25000128 => 'xsaveaddfeature7',
1623	0x25000129 => 'xsaveremovefeature',	1779	0x25000129 => 'xsaveremovefeature',
1624	0x2500012a => 'xsaveprocessorsmask',	1780	0x2500012a => 'xsaveprocessorsmask',
1625	0x2500012b => 'xsavedisable',	1781	0x2500012b => 'xsavedisable',
1626	0x2500012c => 'kerneldebugtype',	1782	0x2500012c => 'kerneldebugtype',
1627	0x2200012d => 'kernelbusparams',	1783	0x2200012d => 'kernelbusparams',
1628	0x2500012e => 'kerneldebugaddress',	1784	0x2500012e => 'kerneldebugaddress',
1629	0x2500012f => 'kerneldebugport',	1785	0x2500012f => 'kerneldebugport',
1630	0x25000130 => 'claimedtpmcounter',	1786	0x25000130 => 'claimedtpmcounter',
1631	0x25000131 => 'kernelchannel',	1787	0x25000131 => 'kernelchannel',
1632	0x22000132 => 'kerneltargetname',	1788	0x22000132 => 'kerneltargetname',
1633	0x25000133 => 'kernelhostip',	1789	0x25000133 => 'kernelhostip',
1634	0x25000134 => 'kernelport',	1790	0x25000134 => 'kernelport',
1635	0x26000135 => 'kerneldhcp',	1791	0x26000135 => 'kerneldhcp',
1636	0x22000136 => 'kernelkey',	1792	0x22000136 => 'kernelkey',
1637	0x22000137 => 'imchivename',	1793	0x22000137 => 'imchivename',
1638	0x21000138 => 'imcdevice',	1794	0x21000138 => 'imcdevice',
1639	0x25000139 => 'kernelbaudrate',	1795	0x25000139 => 'kernelbaudrate',
1640	0x22000140 => 'mfgmode',	1796	0x22000140 => 'mfgmode',
1641	0x26000141 => 'event',	1797	0x26000141 => 'event',
1642	0x25000142 => 'vsmlaunchtype',	1798	0x25000142 => 'vsmlaunchtype',
1643	0x25000144 => 'hypervisorenforcedcodeintegrity',	1799	0x25000144 => 'hypervisorenforcedcodeintegrity',
1644	0x26000145 => 'enablebootdebugpolicy',
1645	0x26000146 => 'enablebootorderclean',
1646	0x26000147 => 'enabledeviceid',
1647	0x26000148 => 'enableffuloader',
1648	0x26000149 => 'enableiuloader',
1649	0x2600014a => 'enablemassstorage',
1650	0x2600014b => 'enablerpmbprovisioning',
1651	0x2600014c => 'enablesecurebootpolicy',
1652	0x2600014d => 'enablestartcharge',
1653	0x2600014e => 'enableresettpm',
1654	0x21000150 => 'systemdatadevice',	1800	0x21000150 => 'systemdatadevice',
1655	0x21000151 => 'osarcdevice',	1801	0x21000151 => 'osarcdevice',
1656	0x21000153 => 'osdatadevice',	1802	0x21000153 => 'osdatadevice',
1657	0x21000154 => 'bspdevice',	1803	0x21000154 => 'bspdevice',
1658	0x21000155 => 'bspfilepath',	1804	0x21000155 => 'bspfilepath',
1659	0x26000202 => 'skipffumode',	1805	},
1660	0x26000203 => 'forceffumode',	1806	resume => {
1661	0x25000510 => 'chargethreshold',
1662	0x26000512 => 'offmodecharging',
1663	0x25000aaa => 'bootflow',
1664	0x35000001 => 'ramdiskimageoffset',
1665	0x35000002 => 'ramdisktftpclientport',
1666	0x31000003 => 'ramdisksdidevice',
1667	0x32000004 => 'ramdisksdipath',
1668	0x35000005 => 'ramdiskimagelength',
1669	0x36000006 => 'exportascd',
1670	0x35000007 => 'ramdisktftpblocksize',
1671	0x35000008 => 'ramdisktftpwindowsize',
1672	0x36000009 => 'ramdiskmcenabled',
1673	0x3600000a => 'ramdiskmctftpfallback',
1674	0x3600000b => 'ramdisktftpvarwindow',
1675	0x45000001 => 'devicetype',	1807	0x21000001 => 'filedevice',
		1808	0x22000002 => 'filepath',
		1809	0x26000003 => 'customsettings',
		1810	0x26000004 => 'pae',
		1811	0x21000005 => 'associatedosdevice',
		1812	0x26000006 => 'debugoptionenabled',
		1813	0x25000007 => 'bootux',
		1814	0x25000008 => 'bootmenupolicy',
		1815	0x26000024 => 'hormenabled',
		1816	},
		1817	startup => {
		1818	0x26000001 => 'pxesoftreboot',
1676	0x42000002 => 'applicationrelativepath',	1819	0x22000002 => 'applicationname',
1677	0x42000003 => 'ramdiskdevicerelativepath',	1820	},
1678	0x46000004 => 'omitosloaderelements',
1679	0x47000006 => 'elementstomigrate',
1680	0x46000010 => 'recoveryos',
1681	);	1821	);
1682		1822
1683	our %rbcde = reverse %bcde;	1823	# mask, value => class
		1824	our @bcde_typeclass = (
		1825	[0x00000000, 0x00000000, 'any'],
		1826	[0xf00fffff, 0x1000000a, 'bootapp'],
		1827	[0xf0ffffff, 0x2020000a, 'bootapp'],
		1828	[0xf00fffff, 0x10000001, 'bootmgr'],
		1829	[0xf00fffff, 0x10000002, 'bootmgr'],
		1830	[0xf0ffffff, 0x20200001, 'bootmgr'],
		1831	[0xf0ffffff, 0x20200002, 'bootmgr'],
		1832	[0xf0f00000, 0x20300000, 'device'],
		1833	[0xf0000000, 0x30000000, 'device'],
		1834	[0xf00fffff, 0x10000005, 'memdiag'],
		1835	[0xf0ffffff, 0x20200005, 'memdiag'],
		1836	[0xf00fffff, 0x10000006, 'ntldr'],
		1837	[0xf00fffff, 0x10000007, 'ntldr'],
		1838	[0xf0ffffff, 0x20200006, 'ntldr'],
		1839	[0xf0ffffff, 0x20200007, 'ntldr'],
		1840	[0xf00fffff, 0x10000003, 'osloader'],
		1841	[0xf0ffffff, 0x20200003, 'osloader'],
		1842	[0xf00fffff, 0x10000004, 'resume'],
		1843	[0xf0ffffff, 0x20200004, 'resume'],
		1844	[0xf00fffff, 0x10000009, 'startup'],
		1845	[0xf0ffffff, 0x20200009, 'startup'],
		1846	);
1684		1847
		1848	our %rbcde_byclass;
		1849
		1850	while (my ($k, $v) = each %bcde_byclass) {
		1851	$rbcde_byclass{$k} = { reverse %$v };
		1852	}
		1853
		1854	# decodes (numerical elem, type) to name
1685	sub dec_bcde_id($) {	1855	sub dec_bcde_id($$) {
		1856	for my $class (@bcde_typeclass) {
		1857	if (($_[1] & $class->[0]) == $class->[1]) {
		1858	if (my $id = $bcde_byclass{$class->[2]}{$_[0]}) {
		1859	return $id;
		1860	}
		1861	}
		1862	}
		1863
1686	$bcde{$_[0]} // sprintf "custom:%08x", $_[0]	1864	sprintf "custom:%08x", $_[0]
1687	}	1865	}
1688		1866
		1867	# encodes (elem as name, type)
1689	sub enc_bcde_id($) {	1868	sub enc_bcde_id($$) {
1690	$_[0] =~ /^custom:([0-9a-fA-F]{8}$)/	1869	$_[0] =~ /^custom:(?:0x)?([0-9a-fA-F]{8}$)/
1691	? hex $1	1870	and return hex $1;
1692	: $rbcde{$_[0]}	1871
		1872	for my $class (@bcde_typeclass) {
		1873	if (($_[1] & $class->[0]) == $class->[1]) {
		1874	if (my $value = $rbcde_byclass{$class->[2]}{$_[0]}) {
		1875	return $value;
		1876	}
		1877	}
		1878	}
		1879
		1880	undef
1693	}	1881	}
1694		1882
1695	# decode/encode bcd device element - the horror, no documentaion	1883	# decode/encode bcd device element - the horror, no documentaion
1696	# whatsoever, supercomplex, superinconsistent.	1884	# whatsoever, supercomplex, superinconsistent.
1697		1885
…		…
1700	our @part_type = qw(gpt mbr raw);	1888	our @part_type = qw(gpt mbr raw);
1701		1889
1702	our $NULL_DEVICE = "\x00" x 16;	1890	our $NULL_DEVICE = "\x00" x 16;
1703		1891
1704	# biggest bitch to decode, ever	1892	# biggest bitch to decode, ever
1705	# this decoded a device portion after the GUID	1893	# this decodes a device portion after the GUID
1706	sub dec_device_($);	1894	sub dec_device_($$);
1707	sub dec_device_($) {	1895	sub dec_device_($$) {
1708	my ($device) = @_;	1896	my ($device, $type) = @_;
1709		1897
1710	my $res;	1898	my $res;
1711		1899
1712	my ($type, $flags, $length, $pad) = unpack "VVVV", substr $device, 0, 4 * 4, "";	1900	my ($type, $flags, $length, $pad) = unpack "VVVV", substr $device, 0, 4 * 4, "";
1713		1901
…		…
1758		1946
1759	my $partid = $parttype eq "gpt" ? dec_guid $partdata	1947	my $partid = $parttype eq "gpt" ? dec_guid $partdata
1760	: $type eq "partition" ? unpack "Q<", $partdata # byte offset to partition start	1948	: $type eq "partition" ? unpack "Q<", $partdata # byte offset to partition start
1761	: unpack "L<", $partdata; # partition number, one-based	1949	: unpack "L<", $partdata; # partition number, one-based
1762		1950
1763	(my $parent, $device) = dec_device_ $device;	1951	(my $parent, $device) = dec_device_ $device, $type;
1764		1952
1765	$res .= "=";	1953	$res .= "=";
1766	$res .= "<$parent>";	1954	$res .= "<$parent>";
1767	$res .= ",$blocktype,$parttype,$diskid,$partid";	1955	$res .= ",$blocktype,$parttype,$diskid,$partid";
1768		1956
…		…
1788	or die "unsupported file descriptor version '$fver'\n";	1976	or die "unsupported file descriptor version '$fver'\n";
1789		1977
1790	$ftype == 5	1978	$ftype == 5
1791	or die "unsupported file descriptor path type '$type'\n";	1979	or die "unsupported file descriptor path type '$type'\n";
1792		1980
1793	(my $parent, $path) = dec_device_ $path;	1981	(my $parent, $path) = dec_device_ $path, $type;
1794		1982
1795	$path = $dec_path->($path, "file device without path");	1983	$path = $dec_path->($path, "file device without path");
1796		1984
1797	($parent, $path)	1985	($parent, $path)
1798	};	1986	};
…		…
1804		1992
1805	} elsif ($blocktype eq "vhd") {	1993	} elsif ($blocktype eq "vhd") {
1806	$device =~ s/^\x00{20}//s	1994	$device =~ s/^\x00{20}//s
1807	or die "virtualdisk has non-zero fields I don't understand\n";	1995	or die "virtualdisk has non-zero fields I don't understand\n";
1808		1996
1809	(my $parent, $device) = dec_device_ $device;	1997	(my $parent, $device) = dec_device_ $device, $type;
1810		1998
1811	$res .= "=vhd,<$parent>";	1999	$res .= "=vhd,<$parent>";
1812		2000
1813	} elsif ($blocktype eq "ramdisk") {	2001	} elsif ($blocktype eq "ramdisk") {
1814	my ($base, $size, $offset) = unpack "Q< Q< L<", substr $device, 0, 8 + 8 + 4, "";	2002	my ($base, $size, $offset) = unpack "Q< Q< L<", substr $device, 0, 8 + 8 + 4, "";
…		…
1827	my ($mode, $elem, $parent) = unpack "VVV", substr $device, 0, 4 * 3, "";	2015	my ($mode, $elem, $parent) = unpack "VVV", substr $device, 0, 4 * 3, "";
1828		2016
1829	if ($parent) {	2017	if ($parent) {
1830	# not sure why this is an offset - it must come after the path	2018	# not sure why this is an offset - it must come after the path
1831	$parent = substr $device, $parent - 4 * 3 - 4 * 4, 1e9, "";	2019	$parent = substr $device, $parent - 4 * 3 - 4 * 4, 1e9, "";
1832	($parent, my $tail) = dec_device_ $parent;	2020	($parent, my $tail) = dec_device_ $parent, $type;
1833	0 == length $tail	2021	0 == length $tail
1834	or die "trailing data after locate device parent\n";	2022	or die "trailing data after locate device parent\n";
1835	} else {	2023	} else {
1836	$parent = "null";	2024	$parent = "null";
1837	}	2025	}
…		…
1843		2031
1844	if ($mode == 0) { # "Element"	2032	if ($mode == 0) { # "Element"
1845	!length $path	2033	!length $path
1846	or die "device locate mode 0 having non-empty path ($mode, $elem, $path)\n";	2034	or die "device locate mode 0 having non-empty path ($mode, $elem, $path)\n";
1847		2035
1848	$elem = dec_bcde_id $elem;	2036	$elem = dec_bcde_id $elem, $type;
1849	$res .= "element,$elem";	2037	$res .= "element,$elem";
1850		2038
1851	} elsif ($mode == 1) { # "String"	2039	} elsif ($mode == 1) { # "String"
1852	!$elem	2040	!$elem
1853	or die "device locate mode 1 having non-zero element\n";	2041	or die "device locate mode 1 having non-zero element\n";
…		…
1878		2066
1879	($res, $tail)	2067	($res, $tail)
1880	}	2068	}
1881		2069
1882	# decode a full binary BCD device descriptor	2070	# decode a full binary BCD device descriptor
1883	sub dec_device($) {	2071	sub dec_device($$) {
1884	my ($device) = @_;	2072	my ($device, $type) = @_;
1885		2073
1886	$device = pack "H*", $device;	2074	$device = pack "H*", $device;
1887		2075
1888	my $guid = dec_guid substr $device, 0, 16, "";	2076	my $guid = dec_guid substr $device, 0, 16, "";
1889	$guid = $guid eq "00000000-0000-0000-0000-000000000000"	2077	$guid = $guid eq "00000000-0000-0000-0000-000000000000"
1890	? "" : "{$guid}";	2078	? "" : "{$guid}";
1891		2079
1892	eval {	2080	eval {
1893	my ($dev, $tail) = dec_device_ $device;	2081	my ($dev, $tail) = dec_device_ $device, $type;
1894		2082
1895	$tail eq ""	2083	$tail eq ""
1896	or die "unsupported trailing data after device descriptor\n";	2084	or die "unsupported trailing data after device descriptor\n";
1897		2085
1898	"$guid$dev"	2086	"$guid$dev"
…		…
1910		2098
1911	undef	2099	undef
1912	}	2100	}
1913		2101
1914	# encode the device portion after the GUID	2102	# encode the device portion after the GUID
1915	sub enc_device_;	2103	sub enc_device_($$);
1916	sub enc_device_ {	2104	sub enc_device_($$) {
1917	my ($device) = @_;	2105	my ($device, $type) = @_;
1918		2106
1919	my $enc_path = sub {	2107	my $enc_path = sub {
1920	my $path = shift;	2108	my $path = shift;
1921	$path =~ s/\//\\/g;	2109	$path =~ s/\//\\/g;
1922	(Encode::encode "UTF-16LE", $path) . "\x00\x00"	2110	(Encode::encode "UTF-16LE", $path) . "\x00\x00"
…		…
1940		2128
1941	my $parse_parent = sub {	2129	my $parse_parent = sub {
1942	my $parent;	2130	my $parent;
1943		2131
1944	if (s/^<//) {	2132	if (s/^<//) {
1945	($parent, $_) = enc_device_ $_;	2133	($parent, $_) = enc_device_ $_, $type;
1946	s/^>//	2134	s/^>//
1947	or die "$device: syntax error: parent device not followed by '>'\n";	2135	or die "$device: syntax error: parent device not followed by '>'\n";
1948	} else {	2136	} else {
1949	$parent = $NULL_DEVICE;	2137	$parent = $NULL_DEVICE;
1950	}	2138	}
…		…
2038		2226
2039	s/^,//	2227	s/^,//
2040	or die "$_: missing comma after locate parent device\n";	2228	or die "$_: missing comma after locate parent device\n";
2041		2229
2042	if (s/^element,//) {	2230	if (s/^element,//) {
2043	s/^([0-9a-z]+)//i	2231	s/^([0-9a-z:]+)//i
2044	or die "$_ locate element must be either name or 8-digit hex id\n";	2232	or die "$_ locate element must be either name or 8-digit hex id\n";
2045	$elem = enc_bcde_id $1;	2233	$elem = enc_bcde_id $1, $type;
2046	$mode = 0;	2234	$mode = 0;
2047	$path = $enc_path->("");	2235	$path = $enc_path->("");
2048		2236
2049	} elsif (s/^path,//) {	2237	} elsif (s/^path,//) {
2050	$mode = 1;	2238	$mode = 1;
…		…
2117	or die "$_: malformed or missing vmbus interface instance guid\n";	2305	or die "$_: malformed or missing vmbus interface instance guid\n";
2118	my $instance = enc_guid $1;	2306	my $instance = enc_guid $1;
2119		2307
2120	$payload = pack "a16a16x24", $type, $instance;	2308	$payload = pack "a16a16x24", $type, $instance;
2121		2309
		2310	# } elsif ($type eq "udp") {
		2311	# $payload = pack "Va16", 1, "12345678";
		2312
2122	} else {	2313	} else {
2123	die "$type: not a supported device type (binary, null, boot, legacypartition, partition, block, locate)\n";	2314	die "$type: not a supported device type (binary, null, boot, legacypartition, partition, block, locate)\n";
2124	}	2315	}
2125		2316
2126	return (	2317	return (
…		…
2129	);	2320	);
2130	}	2321	}
2131	}	2322	}
2132		2323
2133	# encode a full binary BCD device descriptor	2324	# encode a full binary BCD device descriptor
2134	sub enc_device {	2325	sub enc_device($$) {
2135	my ($device) = @_;	2326	my ($device, $type) = @_;
2136		2327
2137	my $guid = "\x00" x 16;	2328	my $guid = "\x00" x 16;
2138		2329
2139	if ($device =~ s/^\{([A-Za-z0-9\-]+)\}//) {	2330	if ($device =~ s/^\{([A-Za-z0-9\-]+)\}//) {
2140	$guid = enc_guid $1	2331	$guid = enc_guid $1
2141	or die "$device: does not start with valid guid\n";	2332	or die "$device: does not start with valid guid\n";
2142	}	2333	}
2143		2334
2144	my ($descriptor, $tail) = enc_device_ $device;	2335	my ($descriptor, $tail) = enc_device_ $device, $type;
2145		2336
2146	length $tail	2337	length $tail
2147	and die "$device: garbage after device descriptor\n";	2338	and die "$device: garbage after device descriptor\n";
2148		2339
2149	unpack "H*", $guid . $descriptor	2340	unpack "H*", $guid . $descriptor
…		…
2164	$k = $bcd_objects{$k} // $k;	2355	$k = $bcd_objects{$k} // $k;
2165		2356
2166	my $type = $v->{Description}[0]{Type}[1];	2357	my $type = $v->{Description}[0]{Type}[1];
2167		2358
2168	if ($type != $bcd_object_types{$k}) {	2359	if ($type != $bcd_object_types{$k}) {
2169	$type = $bcd_types{$type} // sprintf "0x%08x", $type;	2360	$kv{type} = $bcd_types{$type} // sprintf "0x%08x", $type;
2170	$kv{type} = $type;
2171	}	2361	}
2172		2362
2173	my $elems = $v->{Elements}[1];	2363	my $elems = $v->{Elements}[1];
2174		2364
2175	while (my ($k, $v) = each %$elems) {	2365	while (my ($k, $v) = each %$elems) {
2176	my $k = hex $k;	2366	my $k = hex $k;
2177		2367
2178	my $v = $bcde_dec{$k & BCDE_FORMAT}->($v->[0]{Element}[1]);	2368	my $v = $bcde_dec{$k & BCDE_FORMAT}->($v->[0]{Element}[1], $type);
2179	my $k = dec_bcde_id $k;	2369	my $k = dec_bcde_id $k, $type;
2180		2370
2181	$kv{$k} = $v;	2371	$kv{$k} = $v;
2182	}	2372	}
2183		2373
2184	$bcd{$k} = \%kv;	2374	$bcd{$k} = \%kv;
…		…
2225	my %elem;	2415	my %elem;
2226		2416
2227	while (my ($k, $v) = each %$v) {	2417	while (my ($k, $v) = each %$v) {
2228	next if $k eq "type";	2418	next if $k eq "type";
2229		2419
2230	$k = (enc_bcde_id $k) // die "$k: invalid bcde element name or id\n";	2420	$k = (enc_bcde_id $k, $type) // die "$k: invalid bcde element name or id\n";
2231	$elem{sprintf "%08x", $k} = [{	2421	$elem{sprintf "%08x", $k} = [{
2232	Element => [ ($bcde_enc{$k & BCDE_FORMAT} // die "$k: unable to encode unknown bcd element type}")->($v)]	2422	Element => [ ($bcde_enc{$k & BCDE_FORMAT} // die "$k: unable to encode unknown bcd element type}")->($v)]
2233	}];	2423	}];
2234	}	2424	}
2235		2425
…		…
2265	}	2455	}
2266		2456
2267	sub bcd_edit {	2457	sub bcd_edit {
2268	my ($path, $bcd, @insns) = @_;	2458	my ($path, $bcd, @insns) = @_;
2269		2459
2270	my $default = $bcd->{"{bootmgr}"}{resumeobject};	2460	my $default = $bcd->{"{bootmgr}"}{default};
2271		2461
2272	# prepare "officially visible" variables	2462	# prepare "officially visible" variables
2273	local $pbcdedit::PATH = $path;	2463	local $pbcdedit::PATH = $path;
2274	local $pbcdedit::BCD = $bcd;	2464	local $pbcdedit::BCD = $bcd;
2275	local $pbcdedit::DEFAULT = $default;	2465	local $pbcdedit::DEFAULT = $default;
…		…
2292		2482
2293	$object = $object eq "{default}" ? $default : dec_wguid enc_wguid $object;	2483	$object = $object eq "{default}" ? $default : dec_wguid enc_wguid $object;
2294		2484
2295	$bcd->{$object}{$elem} = $value;	2485	$bcd->{$object}{$elem} = $value;
2296		2486
		2487	} elsif ($insn eq "del") {
		2488	my $object = shift @insns;
		2489	my $elem = shift @insns;
		2490
		2491	$object = $object eq "{default}" ? $default : dec_wguid enc_wguid $object;
		2492
		2493	delete $bcd->{$object}{$elem};
		2494
2297	} elsif ($insn eq "eval") {	2495	} elsif ($insn eq "eval") {
2298	bcd_edit_eval shift @insns;	2496	my $perl = shift @insns;
		2497	bcd_edit_eval "#line 1 'eval'\n$perl";
2299		2498
2300	} elsif ($insn eq "do") {	2499	} elsif ($insn eq "do") {
2301	my $path = shift @insns;	2500	my $path = shift @insns;
2302	my $file = file_load $path;	2501	my $file = file_load $path;
2303	bcd_edit_eval "#line 1 '$path'\n$file";	2502	bcd_edit_eval "#line 1 '$path'\n$file";
2304		2503
2305	} else {	2504	} else {
2306	die "$insn: not a recognized instruction for edit/parse\n";	2505	die "$insn: not a recognized instruction for create/edit/parse\n";
2307	}	2506	}
2308	}	2507	}
2309		2508
2310	}	2509	}
2311		2510
2312	#############################################################################	2511	#############################################################################
2313	# command line parser	2512	# other utilities
2314		2513
2315	# json to stdout	2514	# json to stdout
2316	sub prjson($) {	2515	sub prjson($) {
2317	print $json_coder->encode ($_[0]);	2516	print $json_coder->encode ($_[0]);
2318	}	2517	}
…		…
2322	my $json;	2521	my $json;
2323	1 while read STDIN, $json, 65536, length $json;	2522	1 while read STDIN, $json, 65536, length $json;
2324	$json_coder->decode ($json)	2523	$json_coder->decode ($json)
2325	}	2524	}
2326		2525
2327	# all subcommands	2526	sub lsblk() {
		2527	my $lsblk = $json_coder->decode (scalar qx<lsblk --json -o PATH,KNAME,MAJ:MIN,TYPE,PTTYPE,PTUUID,PARTUUID,LABEL,FSTYPE>);
		2528
		2529	for my $dev (@{ $lsblk->{blockdevices} }) {
		2530	if ($dev->{type} eq "part") {
		2531
		2532	# lsblk sometimes gives a bogus pttype, so we recreate it here
		2533	$dev->{pttype} = $dev->{ptuuid} =~ /^$RE_GUID\z/
		2534	? "gpt" : "dos";
		2535
		2536	if ($dev->{pttype} eq "gpt") {
		2537	$dev->{bcd_device} = "partition=<null>,harddisk,gpt,$dev->{ptuuid},$dev->{partuuid}";
		2538	} elsif ($dev->{pttype} eq "dos") { # why not "mbr" :(
		2539	if ($dev->{partuuid} =~ /^([0-9a-f]{8})-([0-9a-f]{2})\z/i) {
		2540	my ($diskid, $partno) = ($1, hex $2);
		2541	$dev->{bcd_legacy_device} = "legacypartition=<null>,harddisk,mbr,$diskid,$partno";
		2542	if (open my $fh, "/sys/class/block/$dev->{kname}/start") {
		2543	my $start = 512 * readline $fh;
		2544	$dev->{bcd_device} = "partition=<null>,harddisk,mbr,$diskid,$start";
		2545	}
		2546	}
		2547	}
		2548	}
		2549	}
		2550
		2551	$lsblk->{blockdevices}
		2552	}
		2553
		2554	sub prdev($$) {
		2555	my ($path, $attribute) = @_;
		2556
		2557	# rather than stat'ing and guessing how devices are encoded, we use lsblk for this
		2558	my $mm = $json_coder->decode (scalar qx<lsblk -d -o MAJ:MIN -J \Q$path\E>)->{blockdevices}[0]{"maj:min"};
		2559
		2560	my $lsblk = lsblk;
		2561
		2562	for my $dev (@$lsblk) {
		2563	if ($dev->{"maj:min"} eq $mm && $dev->{$attribute}) {
		2564	say $dev->{$attribute};
		2565	exit 0;
		2566	}
		2567	}
		2568
		2569	exit 1;
		2570	}
		2571
		2572	#############################################################################
		2573	# command line parser
		2574
2328	our %CMD = (	2575	our %CMD = (
2329	help => sub {	2576	help => sub {
2330	require Pod::Usage;	2577	require Pod::Usage;
2331	Pod::Usage::pod2usage (-verbose => 2);	2578	Pod::Usage::pod2usage (-verbose => 2, -quotes => "none", -noperldoc => 1);
2332	},	2579	},
2333		2580
2334	objects => sub {	2581	objects => sub {
2335	my %rbcd_types = reverse %bcd_types;	2582	my %rbcd_types = reverse %bcd_types;
2336	$_ = sprintf "%08x", $_ for values %rbcd_types;	2583	$_ = sprintf "%08x", $_ for values %rbcd_types;
…		…
2357		2604
2358	print "\n";	2605	print "\n";
2359		2606
2360	printf "%-39s %-23s %s\n", "Object GUID", "Alias", "(Hex) Default Type";	2607	printf "%-39s %-23s %s\n", "Object GUID", "Alias", "(Hex) Default Type";
2361	for my $name (sort keys %rbcd_objects) {	2608	for my $name (sort keys %rbcd_objects) {
2362	my $guid = $rbcd_objects{$name};	2609	my $guid = $rbcd_objects{$name};
2363	my $type = $bcd_object_types{$name};	2610	my $type = $bcd_object_types{$name};
2364	my $tname = $bcd_types{$type};	2611	my $tname = $bcd_types{$type};
2365		2612
2366	$type = $type ? sprintf "(%08x) %s", $type, $tname : "-";	2613	$type = $type ? sprintf "(%08x) %s", $type, $tname : "-";
2367		2614
2368	printf "%-39s %-23s %s\n", $guid, $name, $type;	2615	printf "%-39s %-23s %s\n", $guid, $name, $type;
…		…
2382	BCDE_FORMAT_GUID_LIST , "guid list",	2629	BCDE_FORMAT_GUID_LIST , "guid list",
2383	BCDE_FORMAT_INTEGER , "integer",	2630	BCDE_FORMAT_INTEGER , "integer",
2384	BCDE_FORMAT_BOOLEAN , "boolean",	2631	BCDE_FORMAT_BOOLEAN , "boolean",
2385	BCDE_FORMAT_INTEGER_LIST, "integer list",	2632	BCDE_FORMAT_INTEGER_LIST, "integer list",
2386	);	2633	);
2387	my %rbcde = reverse %bcde;
2388	$_ = sprintf "%08x", $_ for values %rbcde;
2389		2634
2390	my %element;	2635	my @element;
2391		2636
		2637	for my $class (sort keys %rbcde_byclass) {
		2638	my $rbcde = $rbcde_byclass{$class};
		2639
2392	unless ($json) {	2640	unless ($json) {
2393	print "\n";	2641	print "\n";
		2642	printf "Elements applicable to class(es): $class\n";
2394	printf "%-9s %-12s %s\n", "Element", "Format", "Name Alias";	2643	printf "%-9s %-12s %s\n", "Element", "Format", "Name Alias";
2395	}	2644	}
2396	for my $name (sort keys %rbcde) {	2645	for my $name (sort keys %$rbcde) {
2397	my $id = $rbcde{$name};	2646	my $id = $rbcde->{$name};
2398	my $format = $format_name{(hex $id) & BCDE_FORMAT};	2647	my $format = $format_name{$id & BCDE_FORMAT};
2399		2648
2400	if ($json) {	2649	if ($json) {
2401	$element{$id} = [$format, $name];	2650	push @element, [$class, $id * 1, $format, $name];
2402	} else {	2651	} else {
		2652	$id = sprintf "%08x", $id;
2403	printf "%-9s %-12s %s\n", $id, $format, $name;	2653	printf "%-9s %-12s %s\n", $id, $format, $name;
		2654	}
2404	}	2655	}
2405	}	2656	}
2406	print "\n" unless $json;	2657	print "\n" unless $json;
2407		2658
2408	prjson {	2659	prjson {
2409	version => $JSON_VERSION,	2660	version => $JSON_VERSION,
2410	element => \%element,	2661	element => \@element,
		2662	class => \@bcde_typeclass,
2411	} if $json;	2663	} if $json;
2412		2664
2413	},	2665	},
2414		2666
2415	export => sub {	2667	export => sub {
…		…
2418		2670
2419	import => sub {	2671	import => sub {
2420	regf_save shift, bcd_encode rdjson;	2672	regf_save shift, bcd_encode rdjson;
2421	},	2673	},
2422		2674
		2675	create => sub {
		2676	my $path = shift;
		2677	my $stat = stat_get $path; # should actually be done at file load time
		2678	my $bcd = { };
		2679	bcd_edit $path, $bcd, @_;
		2680	regf_save $path, bcd_encode $bcd;
		2681	stat_set $path, $stat;
		2682	},
		2683
2423	edit => sub {	2684	edit => sub {
2424	my $path = shift;	2685	my $path = shift;
		2686	my $stat = stat_get $path; # should actually be done at file load time
2425	my $bcd = bcd_decode regf_load $path;	2687	my $bcd = bcd_decode regf_load $path;
2426	bcd_edit $path, $bcd, @_;	2688	bcd_edit $path, $bcd, @_;
2427	regf_save $path, bcd_encode $bcd;	2689	regf_save $path, bcd_encode $bcd;
		2690	stat_set $path, $stat;
2428	},	2691	},
2429		2692
2430	parse => sub {	2693	parse => sub {
2431	my $path = shift;	2694	my $path = shift;
2432	my $bcd = bcd_decode regf_load $path;	2695	my $bcd = bcd_decode regf_load $path;
…		…
2441	"import-regf" => sub {	2704	"import-regf" => sub {
2442	regf_save shift, rdjson;	2705	regf_save shift, rdjson;
2443	},	2706	},
2444		2707
2445	lsblk => sub {	2708	lsblk => sub {
		2709	my $json = $_[0] eq "--json";
		2710
		2711	my $lsblk = lsblk;
		2712
		2713	if ($json) {
		2714	prjson $lsblk;
		2715	} else {
2446	printf "%-10s %-8.8s %-6.6s %-3s %s\n", "DEVICE", "LABEL", "FSTYPE", "PT", "DEVICE DESCRIPTOR";	2716	printf "%-10s %-8.8s %-6.6s %-3s %s\n", "DEVICE", "LABEL", "FSTYPE", "PT", "DEVICE DESCRIPTOR";
2447		2717	for my $dev (@$lsblk) {
2448	my $lsblk = $json_coder->decode (scalar qx<lsblk --json -o PATH,KNAME,TYPE,PTTYPE,PTUUID,PARTUUID,LABEL,FSTYPE>);	2718	for my $bcd ($dev->{bcd_device}, $dev->{bcd_legacy_device}) {
2449
2450	for my $dev (@{ $lsblk->{blockdevices} }) {
2451	my $pr = sub {
2452	printf "%-10s %-8.8s %-6.6s %-3s %s\n",	2719	printf "%-10s %-8.8s %-6.6s %-3s %s\n",
2453	$dev->{path}, $dev->{label}, $dev->{fstype}, $dev->{pttype}, $_[0];	2720	$dev->{path}, $dev->{label}, $dev->{fstype}, $dev->{pttype}, $bcd
2454	};
2455
2456	if ($dev->{type} eq "part") {
2457	if ($dev->{pttype} eq "gpt") {
2458	$pr->("partition=<null>,harddisk,gpt,$dev->{ptuuid},$dev->{partuuid}");
2459	} elsif ($dev->{pttype} eq "dos") { # why not "mbr" :(
2460	if ($dev->{partuuid} =~ /^([0-9a-f]{8})-([0-9a-f]{2})\z/i) {
2461	my ($diskid, $partno) = ($1, hex $2);
2462	$pr->("legacypartition=<null>,harddisk,mbr,$diskid,$partno");
2463	if (open my $fh, "/sys/class/block/$dev->{kname}/start") {
2464	my $start = 512 * readline $fh;
2465	$pr->("partition=<null>,harddisk,mbr,$diskid,$start");
2466	}	2721	if $bcd;
2467	}
2468	}	2722	}
2469	}	2723	}
2470	}	2724	}
2471	},	2725	},
		2726
		2727	"bcd-device" => sub {
		2728	prdev shift, "bcd_device";
		2729	},
		2730
		2731	"bcd-legacy-device" => sub {
		2732	prdev shift, "bcd_legacy_device";
		2733	},
		2734
		2735	version => sub {
		2736	print "\n",
		2737	"PBCDEDIT version $VERSION, copyright 2019 Marc A. Lehmann <pbcdedit\@schmorp.de>.\n",
		2738	"JSON schema version: $JSON_VERSION\n",
		2739	"Licensed under the GNU General Public License Version 3.0, or any later version.\n",
		2740	"\n",
		2741	$CHANGELOG,
		2742	"\n";
		2743	},
2472	);	2744	);
2473		2745
2474	my $cmd = shift;	2746	my $cmd = shift;
2475		2747
2476	unless (exists $CMD{$cmd}) {	2748	unless (exists $CMD{$cmd}) {

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