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Revision 1.6 by root, Wed Aug 14 22:44:57 2019 UTC vs.
Revision 1.76 by root, Tue Aug 9 11:44:54 2022 UTC

1	#!/opt/bin/perl	1	#!/usr/bin/perl
2		2
3	#	3	#
4	# PBCDEDIT - Copyright 2019 Marc A. Lehmann <pbcbedit@schmorp.de>	4	# PBCDEDIT - Copyright 2019 Marc A. Lehmann <pbcbedit@schmorp.de>
5	#	5	#
6	# SPDX-License-Identifier: GPL-3.0-or-later	6	# SPDX-License-Identifier: GPL-3.0-or-later
…		…
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	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
		67
34	pbcdedit export path/to/BCD # output BCD hive as JSON	68	pbcdedit export path/to/BCD # output BCD hive as JSON
35	pbcdedit import path/to/bcd # convert standard input to BCD hive	69	pbcdedit import path/to/BCD # convert standard input to BCD hive
36	pbcdedit edit path/to/BCD edit-instructions...	70	pbcdedit edit path/to/BCD edit-instructions...
37		71
38	pbcdedit objects # list all supported object aliases and types	72	pbcdedit objects # list all supported object aliases and types
39	pbcdedit elements # list all supported bcd element aliases	73	pbcdedit elements # list all supported bcd element aliases
40		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
41	=head1 DESCRIPTION	84	=head1 DESCRIPTION
42		85
43	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
44	(BCD) stores used by Windows Vista and newer versions of Windows.	87	(BCD) stores used by Windows Vista and newer versions of Windows.
45		88
		89	At this point, it is in relatively early stages of development and has
		90	received little to no real-world testing.
		91
46	Compared to other BCD editing programs it offers the following unique	92	Compared to other BCD editing programs it offers the following unique
47	features:	93	features:
48		94
49	=over	95	=over
50		96
…		…
55		101
56	=item Does not rely on Windows	102	=item Does not rely on Windows
57		103
58	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
59	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
60	that supports at least perl version 5.14.	106	that supports at least perl version 5.16.
61		107
62	=item Decodes and encodes BCD device elements	108	=item Decodes and encodes BCD device elements
63		109
64	PBCDEDIT can concisely decode and encode BCD device element contents. This	110	PBCDEDIT can concisely decode and encode BCD device element contents. This
65	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
…		…
72	sensitive data.	118	sensitive data.
73		119
74	=back	120	=back
75		121
76	The target audience for this program is professionals and tinkerers who	122	The target audience for this program is professionals and tinkerers who
77	are rewady to invest time into learning how it works. It is not an easy	123	are ready to invest time into learning how it works. It is not an easy
78	program to use and requires patience and a good understanding of BCD data	124	program to use and requires patience and a good understanding of BCD
79	stores.	125	stores.
80		126
81		127
82	=head1 SUBCOMMANDS	128	=head1 SUBCOMMANDS
83		129
84	PCBEDIT expects a subcommand as first argument that tells it what to	130	PBCDEDIT expects a subcommand as first argument that tells it what to
85	do. The following subcommands exist:	131	do. The following subcommands exist:
86		132
87	=over	133	=over
88		134
89	=item help	135	=item C<help>
90		136
91	Displays the whole manuale page (this document).	137	Displays the whole manual page (this document).
92		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
93	=item export F<path>	144	=item C<export> F<path>
94		145
95	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
96	output.	147	output.
97		148
98	The format of the data is explained later in this document.	149	The format of the data is explained later in this document.
99		150
100	Example: read a BCD store, modify it wiht an extenral program, write it again.	151	Example: read a BCD store, modify it with an external program, write it
		152	again.
101		153
102	pbcdedit export BCD | modify-json-somehow | pbcdedit import BCD	154	pbcdedit export BCD | modify-json-somehow | pbcdedit import BCD
103		155
104	=item import F<path>	156	=item C<import> F<path>
105		157
106	The reverse of C<export>: Reads a JSON representation of a BCD data store	158	The reverse of C<export>: Reads a JSON representation of a BCD data store
107	from standard input, and creates or replaces the given BCD data store.	159	from standard input, and creates or replaces the given BCD data store.
108		160
109	=item edit F<path> instructions...	161	=item C<edit> F<path> I<instructions...>
110		162
111	Load a BCD data store, apply some instructions to it, and save it again.	163	Load a BCD data store, apply some instructions to it, and save it again.
112		164
113	See the section L<EDITING BCD DATA STORES>, below, for more info.	165	See the section L<EDITING BCD STORES>, below, for more info.
114		166
115	=item parse F<path> instructions...	167	=item C<parse> F<path> I<instructions...>
116		168
117	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
118	be useful to extract some data from it.	170	be useful to extract some data from it.
119		171
120	=item 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>]
121		178
122	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
123	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
124	a mounted C</sys> file system.	181	a mounted C</sys> file system.
125		182
126	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>
127	descriptors for GPT and both C<legacypartition> and C<partition>	184	descriptors for GPT and both C<legacypartition> and C<partition>
128	descritpors for MBR partitions.	185	descriptors for MBR partitions.
129		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.
		207
130	=item objects [--json]	208	=item C<objects> [C<--json>]
131		209
132	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
133	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
134	(if any).	212	(if any).
135		213
136	With C<--json> it prints similar information as a JSON object, for easier parsing.	214	With C<--json> it prints similar information as a JSON object, for easier parsing.
137		215
138	=item elements [--json]	216	=item C<elements> [C<--json>]
139		217
140	Outputs a table of known element aliases with their hex ID and the format	218	Outputs a table of known element aliases with their hex ID and the format
141	type.	219	type.
142		220
143	With C<--json> it prints similar information as a JSON object, for easier parsing.	221	With C<--json> it prints similar information as a JSON object, for easier parsing.
144		222
145	=item export-regf F<path>	223	=item C<export-regf> F<path>
146		224
147	This has nothing to do with BCD data stores - it takes a registry hive	225	This has nothing to do with BCD stores, but simply exposes PCBEDIT's
		226	internal registry hive reader - it takes a registry hive file as argument
148	file as argument and outputs a JSON representation of it to standard	227	and outputs a JSON representation of it to standard output.
149	output.
150		228
151	Hive versions 1.2 till 1.6 are supported.	229	Hive versions 1.2 till 1.6 are supported.
152		230
153	=item import-regf F<path>	231	=item C<import-regf> F<path>
154		232
155	The reverse of C<export-regf>: reads a JSON representation of a registry	233	The reverse of C<export-regf>: reads a JSON representation of a registry
156	hive from standard input and creates or replaces the registry hive file given as	234	hive from standard input and creates or replaces the registry hive file
157	argument.	235	given as argument.
158		236
159	The written hive will always be in a slightly modified version 1.3	237	The written hive will always be in a slightly modified version 1.3
160	format. It's not the format windows would generate, but it should be	238	format. It's not the format windows would generate, but it should be
161	understood by any conformant hive reader.	239	understood by any conformant hive reader.
162		240
163	Note that the representation chosen by PBCDEDIT currently throws away	241	Note that the representation chosen by PBCDEDIT currently throws away
164	clasname data (often used for feeble attemtps at hiding stuff by	242	classname data (often used for feeble attempts at hiding stuff by
165	Microsoft) and security descriptors, so if you write anything other than	243	Microsoft) and security descriptors, so if you write anything other than
166	a BCD hive you will most likely destroy it.	244	a BCD hive you will most likely destroy it.
167		245
168	=back	246	=back
169		247
170		248
171	=head1 BCD DATA STORE REPRESENTATION FORMAT	249	=head1 BCD STORE REPRESENTATION FORMAT
172		250
173	A BCD data store is represented as a JSON object with one special key,	251	A BCD data store is represented as a JSON object with one special key,
174	C<meta>, and one key per BCD object. That is, each BCD object becomes	252	C<meta>, and one key per BCD object. That is, each BCD object becomes
175	one key-value pair in the object, and an additional key called C<meta>	253	one key-value pair in the object, and an additional key called C<meta>
176	contains meta information.	254	contains meta information.
…		…
212	}	290	}
213		291
214	=head2 Minimal BCD to boot windows	292	=head2 Minimal BCD to boot windows
215		293
216	Experimentally I found the following BCD is the minimum required to	294	Experimentally I found the following BCD is the minimum required to
217	successfully boot any post-XP version of Windows (suitable C<device> and	295	successfully boot any post-XP version of Windows (assuming suitable
218	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>):
219		298
220	{	299	{
221	"{bootmgr}" : {	300	"{bootmgr}" : {
222	"resumeobject" : "{45b547a7-8ca6-4417-9eb0-a257b61f35b4}"	301	"default" : "{45b547a7-8ca6-4417-9eb0-a257b61f35b4}"
223	},	302	},
224		303
225	"{45b547a7-8ca6-4417-9eb0-a257b61f35b1}" : {	304	"{45b547a7-8ca6-4417-9eb0-a257b61f35b1}" : {
226	"type" : "application::osloader",	305	"type" : "application::osloader",
227	"description" : "Windows Boot",	306	"description" : "Windows Boot",
…		…
234		313
235	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
236	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
237	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>.
238		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
239	=head2 The C<meta> key	334	=head2 The C<meta> key
240		335
241	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
242	by PBCDEDIT. It is always generated when exporting, and importing will	337	by PBCDEDIT. It is always generated when exporting, and importing will
243	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
244	the JSON schema version of PBCDEDIT. This ensures that differemt and	339	the JSON schema version of PBCDEDIT. This ensures that different and
245	incompatible versions of PBCDEDIT will not read and misinterüret each	340	incompatible versions of PBCDEDIT will not read and misinterpret each
246	others data.	341	others data.
247		342
248	=head2 The object keys	343	=head2 The object keys
249		344
250	Every other key is a BCD object. There is usually a BCD object for the	345	Every other key is a BCD object. There is usually a BCD object for the
251	boot manager, one for every boot option and a few others that store common	346	boot manager, one for every boot option and a few others that store common
252	settings inherited by these.	347	settings inherited by these.
253		348
254	Each BCD object is represented by a GUID wrapped in curly braces. These	349	Each BCD object is represented by a GUID wrapped in curly braces. These
255	are usually random GUIDs used only to distinguish bCD objects from each	350	are usually random GUIDs used only to distinguish BCD objects from each
256	other. When adding a new boot option, you can simply generate a new GUID.	351	other. When adding a new boot option, you can simply generate a new GUID.
257		352
258	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
259	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
260	as C<{7ea2e1ac-2e61-4728-aaa3-896d9d0a9f0e}>.	355	as C<{7ea2e1ac-2e61-4728-aaa3-896d9d0a9f0e}>.
261		356
262	Each BCD, object has an associated type. For example,	357	Each BCD object has an associated type. For example,
263	C<application::osloader> for objects loading Windows via F<winload.exe>,	358	C<application::osloader> for objects loading Windows via F<winload.exe>,
264	C<application::bootsector> for real mode applications and so on.	359	C<application::bootsector> for real mode applications and so on.
265		360
266	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
267	section).	362	section).
…		…
294	get a list of all BCD elements known to PBCDEDIT by running F<pbcdedit	389	get a list of all BCD elements known to PBCDEDIT by running F<pbcdedit
295	elements>.	390	elements>.
296		391
297	What was said about duplicate keys mapping to the same object is true for	392	What was said about duplicate keys mapping to the same object is true for
298	elements as well, so, again, you should always use the canonical name,	393	elements as well, so, again, you should always use the canonical name,
299	whcih is the human radable alias, if known.	394	which is the human readable alias, if known.
300		395
301	=head3 BCD element types	396	=head3 BCD element types
302		397
303	Each BCD element has a type such as I<string> or I<boolean>. This type	398	Each BCD element has a type such as I<string> or I<boolean>. This type
304	determines how the value is interpreted, and most of them are pretty easy	399	determines how the value is interpreted, and most of them are pretty easy
…		…
316	"description" : "Windows 10",	411	"description" : "Windows 10",
317	"systemroot" : "\\Windows",	412	"systemroot" : "\\Windows",
318		413
319	=item boolean	414	=item boolean
320		415
321	Almost as simnple are booleans, which represent I<true>/I<false>,	416	Almost as simple are booleans, which represent I<true>/I<false>,
322	I<on>/I<off> and similar values. In the JSON form, true is represented	417	I<on>/I<off> and similar values. In the JSON form, true is represented
323	by the number C<1>, and false is represented by the number C<0>. Other	418	by the number C<1>, and false is represented by the number C<0>. Other
324	values will be accepted, but PBCDEDIT doesn't guarantee how these are	419	values will be accepted, but PBCDEDIT doesn't guarantee how these are
325	interpreted.	420	interpreted.
326		421
…		…
330		425
331	"displaybootmenu" : 0,	426	"displaybootmenu" : 0,
332		427
333	=item integer	428	=item integer
334		429
335	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
336	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
337	binatry number (prefix C<0b>).	432	binary number (prefix C<0b>).
338		433
339	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
340	boot delay in seconds:	435	boot delay in seconds:
341		436
342	"timeout" : 30,	437	"timeout" : 30,
343		438
344	=item integer list	439	=item integer list
345		440
346	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
347	much, so here is a somewhat artificial an untested exanmple of using	442	much, so here is a somewhat artificial and untested example of using
348	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
349	when pressing C<F10> at boot:	444	when pressing C<F10> at boot:
350		445
351	"customactions" : "0x1000044000001 0x54000001",	446	"customactions" : "0x1000044000001 0x54000001",
352		447
353	=item guid	448	=item guid
354		449
355	This represents a single GUID value wrqapped in curly braces. It is used a	450	This represents a single GUID value wrapped in curly braces. It is used a
356	lot to refer from one BCD object to other one.	451	lot to refer from one BCD object to other one.
357		452
358	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
359	using C<resumeobject>:	454	using C<default>:
360		455
361	"resumeobject" : "{7ae02178-821d-11e7-8813-1c872c5f5ab0}",	456	"default" : "{7ae02178-821d-11e7-8813-1c872c5f5ab0}",
362		457
363	Human readable aliases are used and allowed.	458	Human readable aliases are used and allowed.
364		459
365	=item guid list	460	=item guid list
366		461
367	Similar to te guid type, this represents a list of such GUIDs, separated	462	Similar to the GUID type, this represents a list of such GUIDs, separated
368	by whitespace from each other.	463	by whitespace from each other.
369		464
370	For example, many BCD objects can I<inherit> elements from other BCD	465	For example, many BCD objects can I<inherit> elements from other BCD
371	objects by specifying the GUIDs of those other objects ina GUID list	466	objects by specifying the GUIDs of those other objects in a GUID list
372	called surprisingly called C<inherit>:	467	called surprisingly called C<inherit>:
373		468
374	"inherit" : "{dbgsettings} {emssettings} {badmemory}",	469	"inherit" : "{dbgsettings} {emssettings} {badmemory}",
375		470
376	This example also shows how human readable aliases can be used.	471	This example also shows how human readable aliases can be used.
…		…
380	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
381	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
382	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
383	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
384	below.	479	below.
		480
385	=back	481	=back
386		482
387	=head4 The BCD "device" element type	483	=head3 The BCD "device" element type
388		484
389	Device elements specify, well, devices. They are used for such diverse	485	Device elements specify, well, devices. They are used for such diverse
390	purposes such as finding a TFTP network boot imagem serial ports or VMBUS	486	purposes such as finding a TFTP network boot image, serial ports or VMBUS
391	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,
392	cdrom ramdisk, vhd...) to boot from.	488	cdrom, ramdisk, vhd...) to boot from.
393		489
394	The device element is kind of a mini-language in its own which is much	490	The device element is kind of a mini-language in its own which is much
395	more versatile then the limited windows interface to it - BCDEDIT -	491	more versatile then the limited windows interface to it - BCDEDIT -
396	reveals.	492	reveals.
397		493
…		…
400	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
401	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
402	device elements is partial only.	498	device elements is partial only.
403		499
404	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
405	is much bigger than BCDEDIT and therefore more cna be don with it. The	501	is much greater than BCDEDIT and therefore more can be done with it. The
406	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
407	you might think from reading the BCDEDIT documentation.	503	you might think from reading the BCDEDIT documentation.
408		504
409	In other words, simple things are complicated, and complicated things are	505	In other words, simple things are complicated, and complicated things are
410	possible.	506	possible.
411		507
412	Anyway, the general syntax of device elements is an optional GUID,	508	Anyway, the general syntax of device elements is an optional GUID,
413	followed by a device type, optionally followed by hexdecimal flags in	509	followed by a device type, optionally followed by hexadecimal flags in
414	angle brackets, optionally followed by C<=> and a comma-separated list of	510	angle brackets, optionally followed by C<=> and a comma-separated list of
415	arguments, some of which can be (and often are) in turn devices again.	511	arguments, some of which can be (and often are) in turn devices again.
416		512
417	[{GUID}]type[<flags>][=arg,arg...]	513	[{GUID}]type[<flags>][=arg,arg...]
418		514
419	Here are some examples:	515	Here are some examples:
420		516
421	boot	517	boot
422	{b097d29f-bc00-11e9-8a9a-525400123456}block=file,<boot>,\\EFI"	518	{b097d29f-bc00-11e9-8a9a-525400123456}block=file,<boot>,\EFI
423	locate=<null>,element,systemroot	519	locate=<null>,element,systemroot
424	partition=<null>,harddisk,mbr,47cbc08a,1048576	520	partition=<null>,harddisk,mbr,47cbc08a,1048576
425	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
426	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
427	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>,\
…		…
444	The types understood and used by PBCDEDIT are as follows (keep in mind	540	The types understood and used by PBCDEDIT are as follows (keep in mind
445	that not of all the following is necessarily supported in PBCDEDIT):	541	that not of all the following is necessarily supported in PBCDEDIT):
446		542
447	=over	543	=over
448		544
449	=item binary=hex...	545	=item C<binary=>I<hex...>
450		546
451	This type isn't actually a real BCD element type, but a fallback for those	547	This type isn't actually a real BCD element type, but a fallback for those
452	cases where PBCDEDIT can't perfectly decode a device element (except for	548	cases where PBCDEDIT can't perfectly decode a device element (except for
453	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
454	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.
455		551
456	=item null	552	=item C<null>
457		553
458	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,
459	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
460	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
461	called C<null>.	557	zero" type called C<null>.
462		558
463	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
464	device, when no parent device is used.	560	device, when no parent device is used.
465		561
466	=item boot	562	=item C<boot>
467		563
468	Another type without parameters, this refers to the device that was booted	564	Another type without parameters, this refers to the device that was booted
469	from (nowadays typically the EFI system partition).	565	from (nowadays typically the EFI system partition).
470		566
471	=item vmbus=interfacetype,interfaceinstance	567	=item C<vmbus=>I<interfacetype>,I<interfaceinstance>
472		568
473	This specifies a VMBUS device with the given interface type and interface	569	This specifies a VMBUS device with the given interface type and interface
474	instance, both of which are "naked" (no curly braces) GUIDs.	570	instance, both of which are "naked" (no curly braces) GUIDs.
475		571
476	Made-up example (couldn't find a single example on the web):	572	Made-up example (couldn't find a single example on the web):
477		573
478	vmbus=c376c1c3-d276-48d2-90a9-c04748072c60,12345678-a234-b234-c234-d2345678abcd	574	vmbus=c376c1c3-d276-48d2-90a9-c04748072c60,12345678-a234-b234-c234-d2345678abcd
479		575
480	=item partition=<parent>,devicetype,partitiontype,diskid,partitionid	576	=item C<partition=><I<parent>>,I<devicetype>,I<partitiontype>,I<diskid>,I<partitionid>
481		577
482	This designates a specific partition on a block device. C<< <parent>	578	This designates a specific partition on a block device. I<parent> is an
483	>> is an optional parent device on which to search on, and is often	579	optional parent device on which to search on, and is often C<null>. Note
484	C<null>. Note that the anfgle brackets are part of the syntax.	580	that the angle brackets around I<parent> are part of the syntax.
485		581
486	C<devicetypes> is one of C<harddisk>, C<floppy>, C<cdrom>, C<ramdisk>,	582	I<devicetypes> is one of C<harddisk>, C<floppy>, C<cdrom>, C<ramdisk>,
487	C<file> or C<vhd>, where the first three should be self-explaining,	583	C<file> or C<vhd>, where the first three should be self-explaining,
488	C<file> is usually used to locate a device by finding a magic file, and	584	C<file> is usually used to locate a file to be used as a disk image,
489	C<vhd> is used for virtual harddisks - F<.vhd> and F<-vhdx> files.	585	and C<vhd> is used to treat files as virtual harddisks, i.e. F<vhd> and
		586	F<vhdx> files.
490		587
491	The C<partitiontype> is either C<mbr>, C<gpt> or C<raw>, the latter being	588	The I<partitiontype> is either C<mbr>, C<gpt> or C<raw>, the latter being
492	used for devices without partitions, such as cdroms, where the "partition"	589	used for devices without partitions, such as cdroms, where the "partition"
493	is usually the whole device.	590	is usually the whole device.
494		591
495	The C<diskid> identifies the disk or device using a unique signature, and	592	The I<diskid> identifies the disk or device using a unique signature, and
496	the same is true for the C<partitionid>. How these are interpreted depends	593	the same is true for the I<partitionid>. How these are interpreted depends
497	on the C<partitiontype>:	594	on the I<partitiontype>:
498		595
499	=over	596	=over
500		597
501	=item mbr	598	=item C<mbr>
502		599
503	The C<diskid> is the 32 bit disk signature stored at offset 0x1b8 in the	600	The C<diskid> is the 32 bit disk signature stored at offset 0x1b8 in the
504	MBR, interpreted as a 32 bit unsigned little endian integer and written as	601	MBR, interpreted as a 32 bit unsigned little endian integer and written as
505	hex number. That is, the bytes C<01 02 03 04> would become C<04030201>.	602	hex number. That is, the bytes C<01 02 03 04> would become C<04030201>.
506		603
507	Diskpart (using the C<DETAIL> command) and the C<lsblk> comamnd typically	604	Diskpart (using the C<DETAIL> command) and the C<lsblk> command typically
508	found on GNU/Linux systems (using e.g. C<lsblk -o NAME,PARTUUID>) can	605	found on GNU/Linux systems (using e.g. C<lsblk -o NAME,PARTUUID>) can
509	display the disk id.	606	display the I<diskid>.
510		607
511	The C<partitionid> is the byte offset(!) of the partition counting from	608	The I<partitionid> is the byte offset(!) of the partition counting from
512	the beginning of the MBR.	609	the beginning of the MBR.
513		610
514	Example, use the partition on the harddisk with C<diskid> C<47cbc08a>	611	Example, use the partition on the harddisk with I<diskid> C<47cbc08a>
515	starting at sector C<2048> (= 1048576 / 512).	612	starting at sector C<2048> (= 1048576 / 512).
516		613
517	partition=<null>,harddisk,mbr,47cbc08a,1048576	614	partition=<null>,harddisk,mbr,47cbc08a,1048576
518		615
519	=item gpt	616	=item C<gpt>
520		617
521	The C<diskid> is the disk UUID/disk identifier GUID from the partition	618	The I<diskid> is the disk GUID/disk identifier GUID from the partition
522	table (as displayed e.g. by C<gdisk>), and the C<partitionid> is the	619	table (as displayed e.g. by F<gdisk>), and the I<partitionid> is the
523	partition unique GUID (displayed using e.g. the C<gdisk> C<i> command).	620	partition unique GUID (displayed using e.g. the F<gdisk> F<i> command).
524		621
525	Example: use the partition C<76d39e5f-ad1b-407e-9c05-c81eb83b57dd> on GPT	622	Example: use the partition C<76d39e5f-ad1b-407e-9c05-c81eb83b57dd> on GPT
526	disk C<9742e468-9206-48a0-b4e4-c4e9745a356a>.	623	disk C<9742e468-9206-48a0-b4e4-c4e9745a356a>.
527		624
528	partition=<null>,harddisk,gpt,9742e468-9206-48a0-b4e4-c4e9745a356a,76d39e5f-ad1b-407e-9c05-c81eb83b57dd	625	partition=<null>,harddisk,gpt,9742e468-9206-48a0-b4e4-c4e9745a356a,76d39e5f-ad1b-407e-9c05-c81eb83b57dd
529		626
530	=item raw	627	=item C<raw>
531		628
532	Instead of diskid and partitionid, this type only accepts a decimal disk	629	Instead of I<diskid> and I<partitionid>, this type only accepts a decimal
533	number and signifies the whole disk. BCDEDIT cannot display the resulting	630	disk number and signifies the whole disk. BCDEDIT cannot display the
534	device, and I am doubtful whether it has a useful effect.	631	resulting device, and I am doubtful whether it has a useful effect.
535		632
536	=back	633	=back
537		634
538	=item legacypartition=<parent>,devicetype,partitiontype,diskid,partitionid	635	=item C<legacypartition=><I<parent>>,I<devicetype>,I<partitiontype>,I<diskid>,I<partitionid>
539		636
540	This is exactly the same as the C<partition> type, except for a tiny	637	This is exactly the same as the C<partition> type, except for a tiny
541	detail: instead of using the partition start offset, this type uses the	638	detail: instead of using the partition start offset, this type uses the
542	partition number for MBR disks. Behaviour other partition types should be	639	partition number for MBR disks. Behaviour other partition types should be
543	the same.	640	the same.
544		641
545	The partition number starts at C<1> and skips unused partition, so if	642	The partition number starts at C<1> and skips unused partition, so if
546	there are two primary partitions and another partition inside the extended	643	there are two primary partitions and another partition inside the extended
547	partition, the primary partitions are number C<1> and C<2> and the	644	partition, the primary partitions are number C<1> and C<2> and the
548	partition inside the extended partition is number C<3>, rwegardless of any	645	partition inside the extended partition is number C<3>, regardless of any
549	gaps.	646	gaps.
550		647
551	=item locate=<parent>,locatetype,locatearg	648	=item C<locate=><I<parent>>,I<locatetype>,I<locatearg>
552		649
553	This device description will make the bootloader search for a partition	650	This device description will make the bootloader search for a partition
554	with a given path.	651	with a given path.
555		652
556	The C<< <parent> >> device is the device to search on (angle brackets are	653	The I<parent> device is the device to search on (angle brackets are
557	still part of the syntax!) If it is C<< <null> >>, then C<locate> will	654	still part of the syntax!) If it is C<null>, then C<locate> will
558	search all disks it can find.	655	search all disks it can find.
559		656
560	C<locatetype> is either C<element> or C<path>, and merely distinguishes	657	I<locatetype> is either C<element> or C<path>, and merely distinguishes
561	between two different ways to specify the path to search for: C<element>	658	between two different ways to specify the path to search for: C<element>
562	uses an element ID (either as hex or as name) as C<locatearg> and C<path>	659	uses an element ID (either as hex or as name) as I<locatearg> and C<path>
563	uses a relative path as C<locatearg>.	660	uses a relative path as I<locatearg>.
564		661
565	Example: find any partition which has the C<magicfile.xxx> path in the	662	Example: find any partition which has the F<magicfile.xxx> path in the
566	root.	663	root.
567		664
568	locate=<null>,path,\magicfile.xxx	665	locate=<null>,path,\magicfile.xxx
569		666
570	Example: find any partition which has the path specified in the	667	Example: find any partition which has the path specified in the
571	C<systemroot> element (typically C<\Windows>).	668	C<systemroot> element (typically F<\Windows>).
572		669
573	locate=<null>,element,systemroot	670	locate=<null>,element,systemroot
574		671
575	=item block=devicetype,args...	672	=item C<block=>I<devicetype>,I<args...>
576		673
577	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
578	devices (which could be inside a F<vhdx> file for example).	675	devices (which could be inside a F<vhdx> file for example).
579		676
580	C<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>,
581	C<file> or C<vhd> - the same as for C<partiion=>.	678	C<file> or C<vhd> - the same as for C<partition=>.
582		679
583	The remaining arguments change depending on the C<devicetype>:	680	The remaining arguments change depending on the I<devicetype>:
584		681
585	=over	682	=over
586		683
587	=item block=file,<parent>,path	684	=item C<block=file>,<I<parent>>,I<path>
588		685
589	Interprets the C<< <parent> >> device (typically a partition) as a	686	Interprets the I<parent> device (typically a partition) as a
590	filesystem and specifies a file path inside.	687	filesystem and specifies a file path inside.
591		688
592	=item block=vhd,<parent>	689	=item C<block=vhd>,<I<parent>>
593		690
594	Pretty much just changes the interpretation of C<< <parent> >>, which is	691	Pretty much just changes the interpretation of I<parent>, which is
595	usually a disk image (C<block=file,...)>) to be a F<vhd> or F<vhdx> file.	692	usually a disk image (C<block=file,...)>) to be a F<vhd> or F<vhdx> file.
596		693
597	=item block=ramdisk,<parent>,base,size,offset,path	694	=item C<block=ramdisk>,<I<parent>>,I<base>,I<size>,I<offset>,I<path>
598		695
599	Interprets the C<< <parent> >> device as RAM disk, using the (decimal)	696	Interprets the I<parent> device as RAM disk, using the (decimal)
600	base address, byte size and byte offset inside a file specified by	697	base address, byte size and byte offset inside a file specified by
601	C<path>. The numbers are usually all C<0> because they cna be extracted	698	I<path>. The numbers are usually all C<0> because they can be extracted
602	from the RAM disk image or other parameters.	699	from the RAM disk image or other parameters.
603		700
604	This is most commonly used to boot C<wim> images.	701	This is most commonly used to boot C<wim> images.
605		702
606	=item block=floppy,drivenum	703	=item C<block=floppy>,I<drivenum>
607		704
608	Refers to a removable drive identified by a number. BCDEDIT cannot display	705	Refers to a removable drive identified by a number. BCDEDIT cannot display
609	the resultinfg device, and it is not clear what effect it will have.	706	the resulting device, and it is not clear what effect it will have.
610		707
611	=item block=cdrom,drivenum	708	=item C<block=cdrom>,I<drivenum>
612		709
613	Pretty much the same as C<floppy> but for CD-ROMs.	710	Pretty much the same as C<floppy> but for CD-ROMs.
614		711
615	=item anything else	712	=item anything else
616		713
617	Probably not yet implemented. Tell me of your needs...	714	Probably not yet implemented. Tell me of your needs...
618		715
619	=back	716	=back
620		717
621	=back5 Examples	718	=back
		719
		720	=head4 Examples
622		721
623	This concludes the syntax overview for device elements, but probably	722	This concludes the syntax overview for device elements, but probably
624	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
625	many questions, but I can walk you through some actual examples using mroe	724	many questions, but I can walk you through some actual examples using more
626	complex aspects.	725	complex aspects.
627		726
		727	=over
		728
628	=item 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 >>
629		730
630	Just like with C declarations, you best treat device descriptors as	731	Just like with C declarations, you best treat device descriptors as
631	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:
632		733
633	locate=<null>,path,\disk.vhdx	734	locate=<null>,path,\disk.vhdx
…		…
640	Next, this takes the device locate has found and finds a file called	741	Next, this takes the device locate has found and finds a file called
641	F<\disk.vhdx> on it. This is the same file locate was using, but that is	742	F<\disk.vhdx> on it. This is the same file locate was using, but that is
642	only because we find the device using the same path as finding the disk	743	only because we find the device using the same path as finding the disk
643	image, so this is purely incidental, although quite common.	744	image, so this is purely incidental, although quite common.
644		745
645	Bext, this file will be opened as a virtual disk:	746	Next, this file will be opened as a virtual disk:
646		747
647	block=vhd,<see above>	748	block=vhd,<see above>
648		749
649	And finally, inside this disk, another C<locate> will look for a partition	750	And finally, inside this disk, another C<locate> will look for a partition
650	with a path as specified in the C<path> element, which most likely will be	751	with a path as specified in the C<path> element, which most likely will be
…		…
653	locate=<see above>,element,path	754	locate=<see above>,element,path
654		755
655	As a result, this will boot the first Windows it finds on the first	756	As a result, this will boot the first Windows it finds on the first
656	F<disk.vhdx> disk image it can find anywhere.	757	F<disk.vhdx> disk image it can find anywhere.
657		758
658	=item locate=<block=vhd,<block=file,<partition=<null>,harddisk,mbr,47cbc08a,242643632128>,\win10.vhdx>>,element,path	759	=item C<< locate=<block=vhd,<block=file,<partition=<null>,harddisk,mbr,47cbc08a,242643632128>,\win10.vhdx>>,element,path >>
659		760
660	Pretty much the same as the previous case, but witzh a bit of variance. First, look for a specific partition on	761	Pretty much the same as the previous case, but with a bit of
661	an MBR-partitioned disk:	762	variance. First, look for a specific partition on an MBR-partitioned disk:
662		763
663	partition=<null>,harddisk,mbr,47cbc08a,242643632128	764	partition=<null>,harddisk,mbr,47cbc08a,242643632128
664		765
665	Then open the file F<\win10.vhdx> on that partition:	766	Then open the file F<\win10.vhdx> on that partition:
666		767
…		…
672		773
673	And again the windows loader (or whatever is in C<path>) will be searched:	774	And again the windows loader (or whatever is in C<path>) will be searched:
674		775
675	locate=<see above>,element,path	776	locate=<see above>,element,path
676		777
677	=item {b097d2b2-bc00-11e9-8a9a-525400123456}block<1>=ramdisk,<partition=<null>,harddisk,mbr,47cbc08a,242643632128>,0,0,0,\boot.wim	778	=item C<< {b097d2b2-bc00-11e9-8a9a-525400123456}block<1>=ramdisk,<partition=<null>,harddisk,mbr,47cbc08a,242643632128>,0,0,0,\boot.wim >>
678		779
679	This is quite different. First, it starts with a GUID. This GUID belongs	780	This is quite different. First, it starts with a GUID. This GUID belongs
680	to a BCD object of type C<device>, which has additional parameters:	781	to a BCD object of type C<device>, which has additional parameters:
681		782
682	"{b097d2b2-bc00-11e9-8a9a-525400123456}" : {	783	"{b097d2b2-bc00-11e9-8a9a-525400123456}" : {
…		…
685	"ramdisksdidevice" : "partition=<null>,harddisk,mbr,47cbc08a,1048576",	786	"ramdisksdidevice" : "partition=<null>,harddisk,mbr,47cbc08a,1048576",
686	"ramdisksdipath" : "\boot.sdi"	787	"ramdisksdipath" : "\boot.sdi"
687	},	788	},
688		789
689	I will not go into many details, but this specifies a (presumably empty)	790	I will not go into many details, but this specifies a (presumably empty)
690	template ramdisk image (F<\boot.sdi>) that is used to initiaolize the	791	template ramdisk image (F<\boot.sdi>) that is used to initialize the
691	ramdisk. The F<\boot.wim> file is then extracted into it. As you cna also	792	ramdisk. The F<\boot.wim> file is then extracted into it. As you can also
692	see, this F<.sdi> file resides on a different C<partition>.	793	see, this F<.sdi> file resides on a different C<partition>.
693		794
694	Continuitn, as always, form the inside out, first this device descriptor	795	Continuing, as always, from the inside out, first this device descriptor
695	finds a specific partition:	796	finds a specific partition:
696		797
697	partition=<null>,harddisk,mbr,47cbc08a,242643632128	798	partition=<null>,harddisk,mbr,47cbc08a,242643632128
698		799
699	And then specifies a C<ramdisk> image on this partition:	800	And then specifies a C<ramdisk> image on this partition:
…		…
703	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
704	seems to be always there on this kind of entry.	805	seems to be always there on this kind of entry.
705		806
706	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.
707		808
		809	=back
708		810
		811
709	=head1 EDITING BCD DATA STORES	812	=head1 EDITING BCD STORES
710		813
711	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
712	and modify it or extract data from it. This is done by exyecuting a series	815	and modify it or extract data from it. This is done by executing a series
713	of "editing instructions" which are explained here.	816	of "editing instructions" which are explained here.
714		817
715	=over	818	=over
716		819
717	=item get I<object> I<element>	820	=item C<get> I<object> I<element>
718		821
719	Reads the BCD element I<element> from the BCD object I<object> and writes	822	Reads the BCD element I<element> from the BCD object I<object> and writes
720	it to standard output, followed by a newline. The I<object> can be a GUID	823	it to standard output, followed by a newline. The I<object> can be a GUID
721	or a human-readable alias, or the special string C<{default}>, which will	824	or a human-readable alias, or the special string C<{default}>, which will
722	refer to the default BCD object.	825	refer to the default BCD object.
723		826
724	Example: find description of the default BCD object.	827	Example: find description of the default BCD object.
725		828
726	pbcdedit parse BCD get "{default}" description	829	pbcdedit parse BCD get "{default}" description
727		830
728	=item set I<object> I<element> I<value>	831	=item C<set> I<object> I<element> I<value>
729		832
730	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.
731		834
732	Example: change bootmgr default too	835	Example: change the bootmgr default too
733	C<{b097d2ad-bc00-11e9-8a9a-525400123456}>:	836	C<{b097d2ad-bc00-11e9-8a9a-525400123456}>:
734		837
735	pbcdedit edit BCD set "{bootmgr}" resumeobject "{b097d2ad-bc00-11e9-8a9a-525400123456}"	838	pbcdedit edit BCD set "{bootmgr}" default "{b097d2ad-bc00-11e9-8a9a-525400123456}"
736		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.
		843
737	=item eval I<perlcode>	844	=item C<eval> I<perlcode>
738		845
739	This takes the next argument, interprets it as Perl code and	846	This takes the next argument, interprets it as Perl code and
740	evaluates it. This allows you to do more complicated modifications or	847	evaluates it. This allows you to do more complicated modifications or
741	extractions.	848	extractions.
742		849
…		…
761	The example given for C<get>, above, could be expressed like this with	868	The example given for C<get>, above, could be expressed like this with
762	C<eval>:	869	C<eval>:
763		870
764	pbcdedit edit BCD eval 'say $BCD->{$DEFAULT}{description}'	871	pbcdedit edit BCD eval 'say $BCD->{$DEFAULT}{description}'
765		872
766	The example given for C<set> could be expresed like this:	873	The example given for C<set> could be expressed like this:
767		874
768	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}"'
769		876
770	=item do I<path>	877	=item C<do> I<path>
771		878
772	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,
773	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
774	easier to write more complicated or larger programs.	881	easier to write more complicated or larger programs.
775		882
776	=back	883	=back
777		884
		885
778	=head1 SEE ALSO	886	=head1 SEE ALSO
779		887
780	For ideas on what you can do, and some introductory material, try	888	For ideas on what you can do with BCD stores in
		889	general, and some introductory material, try
781	L<http://www.mistyprojects.co.uk/documents/BCDEdit/index.html>.	890	L<http://www.mistyprojects.co.uk/documents/BCDEdit/index.html>.
782		891
783	For good reference on BCD objects and elements, see Geoff Chappels pages	892	For good reference on which BCD objects and
		893	elements exist, see Geoff Chappell's pages at
784	at L<http://www.geoffchappell.com/notes/windows/boot/bcd/index.htm>.	894	L<http://www.geoffchappell.com/notes/windows/boot/bcd/index.htm>.
785		895
786	=head1 AUTHOR	896	=head1 AUTHOR
787		897
788	Written by Marc A. Lehmann <pbcdedit@schmorp.de>.	898	Written by Marc A. Lehmann L<pbcdedit@schmorp.de>.
789		899
790	=head1 REPORTING BUGS	900	=head1 REPORTING BUGS
791		901
792	Bugs can be reported dorectly tt he author at L<pcbedit@schmorp.de>.	902	Bugs can be reported directly the author at L<pcbedit@schmorp.de>.
793		903
794	=head1 BUGS AND SHORTCOMINGS	904	=head1 BUGS AND SHORTCOMINGS
795		905
796	This should be a module. Of a series of modules, even.	906	This should be a module. Of a series of modules, even.
797		907
798	Registry code should preserve classname and security descriptor data, and	908	Registry code should preserve classname and security descriptor data, and
799	whatever else is necessary to read and write any registry hive file.	909	whatever else is necessary to read and write any registry hive file.
800		910
801	I am also not happy with device descriptors being strings rather than a	911	I am also not happy with device descriptors being strings rather than a
802	data structure, but strings are probably better for command line usage. In	912	data structure, but strings are probably better for command line usage. In
803	any case,. device descriptors could be converted by simply "splitting" at	913	any case, device descriptors could be converted by simply "splitting" at
804	"=" and "," into an array reference, recursively.	914	"=" and "," into an array reference, recursively.
805		915
806	=head1 HOMEPAGE	916	=head1 HOMEPAGE
807		917
808	Original versions of this program can be found at	918	Original versions of this program can be found at
…		…
815	free to change and redistribute it. There is NO WARRANTY, to the extent	925	free to change and redistribute it. There is NO WARRANTY, to the extent
816	permitted by law.	926	permitted by law.
817		927
818	=cut	928	=cut
819		929
820	BEGIN { require "common/sense.pm"; common::sense->import } # common sense is optional, but recommended	930	# common sense is optional, but recommended
		931	BEGIN { eval { require "common/sense.pm"; } && common::sense->import }
821		932
822	use Data::Dump;	933	no warnings 'portable'; # avoid 32 bit integer warnings
		934
823	use Encode ();	935	use Encode ();
824	use List::Util ();	936	use List::Util ();
825	use IO::Handle ();	937	use IO::Handle ();
826	use Time::HiRes ();	938	use Time::HiRes ();
827		939
…		…
836		948
837	# hack used for debugging	949	# hack used for debugging
838	sub xxd($$) {	950	sub xxd($$) {
839	open my $xxd, "| xxd | sed -e 's/^/\Q$_[0]\E: /'";	951	open my $xxd, "| xxd | sed -e 's/^/\Q$_[0]\E: /'";
840	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($$) {
		962	my ($fh_or_path, $stat) = @_;
		963
		964	return unless $stat;
		965	chown $stat->[0], $stat->[1], $fh_or_path;
		966	chmod +($stat->[2] & 07777), $fh_or_path;
841	}	967	}
842		968
843	sub file_load($) {	969	sub file_load($) {
844	my ($path) = @_;	970	my ($path) = @_;
845		971
…		…
850	or die "$path: short read\n";	976	or die "$path: short read\n";
851		977
852	$buf	978	$buf
853	}	979	}
854		980
		981	sub file_save($$;$) {
		982	my ($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~", $path;
		993	}
		994
855	# sources and resources used for this:	995	# sources and resources used for writing pbcdedit
		996	#
856	# registry:	997	# registry:
857	# https://github.com/msuhanov/regf/blob/master/Windows%20registry%20file%20format%20specification.md	998	# https://github.com/msuhanov/regf/blob/master/Windows%20registry%20file%20format%20specification.md
858	# http://amnesia.gtisc.gatech.edu/~moyix/suzibandit.ltd.uk/MSc/	999	# http://amnesia.gtisc.gatech.edu/~moyix/suzibandit.ltd.uk/MSc/
859	# bcd:	1000	# bcd:
860	# http://www.geoffchappell.com/notes/windows/boot/bcd/index.htm	1001	# http://www.geoffchappell.com/notes/windows/boot/bcd/index.htm
…		…
1042	my ($rname, $root) = $decode_key->($rootcell);	1183	my ($rname, $root) = $decode_key->($rootcell);
1043		1184
1044	[$rname, $root]	1185	[$rname, $root]
1045	}	1186	}
1046		1187
1047	# return a binary windows fILETIME struct	1188	# return a binary windows FILETIME struct
1048	sub filetime_now {	1189	sub filetime_now {
1049	my ($s, $ms) = Time::HiRes::gettimeofday;	1190	my ($s, $ms) = Time::HiRes::gettimeofday;
1050		1191
1051	pack "Q<", $s = ($s * 1_000_000 + $ms) * 10 + 116_444_736_000_000_000	1192	pack "Q<", ($s * 1_000_000 + $ms) * 10
		1193	+ 116_444_736_000_000_000 # 1970-01-01 00:00:00
1052	}	1194	}
1053		1195
1054	# encode a registry hive	1196	# encode a registry hive
1055	sub regf_encode($) {	1197	sub regf_encode($) {
1056	my ($hive) = @_;	1198	my ($hive) = @_;
…		…
1059		1201
1060	# the filetime is apparently used to verify log file validity,	1202	# the filetime is apparently used to verify log file validity,
1061	# so by generating a new timestamp the log files *should* automatically	1203	# so by generating a new timestamp the log files *should* automatically
1062	# become invalidated and windows would "self-heal" them.	1204	# become invalidated and windows would "self-heal" them.
1063	# (update: has been verified by reverse engineering)	1205	# (update: has been verified by reverse engineering)
1064	# possibly the fact that the two sequence numbes match might also	1206	# possibly the fact that the two sequence numbers match might also
1065	# 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.
1066	# (update: has been verified by reverse engineering)	1208	# (update: has been verified by reverse engineering)
1067		1209
1068	my $now = filetime_now;	1210	my $now = filetime_now;
1069		1211
…		…
1213		1355
1214	regf_decode file_load $path	1356	regf_decode file_load $path
1215	}	1357	}
1216		1358
1217	# encode and save registry to file	1359	# encode and save registry to file
1218	sub regf_save {	1360	sub regf_save($$;$) {
1219	my ($path, $hive) = @_;	1361	my ($path, $hive, $stat) = @_;
1220		1362
1221	$hive = regf_encode $hive;	1363	$hive = regf_encode $hive;
1222		1364
1223	open my $regf, ">:raw", "$path~"	1365	file_save $path, $hive, $stat;
1224	or die "$path~: $!\n";
1225	print $regf $hive
1226	or die "$path~: short write\n";
1227	$regf->sync;
1228	close $regf;
1229
1230	rename "$path~", $path;
1231	}	1366	}
1232		1367
1233	#############################################################################	1368	#############################################################################
1234	# bcd stuff	1369	# bcd stuff
1235		1370
1236	# human-readable alises for GUID object identifiers	1371	# human-readable aliases for GUID object identifiers
1237	our %bcd_objects = (	1372	our %bcd_objects = (
1238	'{0ce4991b-e6b3-4b16-b23c-5e0d9250e5d9}' => '{emssettings}',	1373	'{0ce4991b-e6b3-4b16-b23c-5e0d9250e5d9}' => '{emssettings}',
1239	'{1afa9c49-16ab-4a5c-4a90-212802da9460}' => '{resumeloadersettings}',	1374	'{1afa9c49-16ab-4a5c-4a90-212802da9460}' => '{resumeloadersettings}',
1240	'{1cae1eb7-a0df-4d4d-9851-4860e34ef535}' => '{default}',	1375	'{1cae1eb7-a0df-4d4d-9851-4860e34ef535}' => '{default}',
1241	'{313e8eed-7098-4586-a9bf-309c61f8d449}' => '{kerneldbgsettings}',	1376	'{313e8eed-7098-4586-a9bf-309c61f8d449}' => '{kerneldbgsettings}',
…		…
1348	sub BCDE_FORMAT_GUID_LIST () { 0x04000000 }	1483	sub BCDE_FORMAT_GUID_LIST () { 0x04000000 }
1349	sub BCDE_FORMAT_INTEGER () { 0x05000000 }	1484	sub BCDE_FORMAT_INTEGER () { 0x05000000 }
1350	sub BCDE_FORMAT_BOOLEAN () { 0x06000000 }	1485	sub BCDE_FORMAT_BOOLEAN () { 0x06000000 }
1351	sub BCDE_FORMAT_INTEGER_LIST () { 0x07000000 }	1486	sub BCDE_FORMAT_INTEGER_LIST () { 0x07000000 }
1352		1487
1353	sub dec_device;
1354	sub enc_device;
1355
1356	sub enc_integer($) {	1488	sub enc_integer($) {
1357	no warnings 'portable'; # ugh
1358	my $value = shift;	1489	my $value = shift;
1359	$value = oct $value if $value =~ /^0[bBxX]/;	1490	$value = oct $value if $value =~ /^0[bBxX]/;
1360	unpack "H*", pack "Q<", $value	1491	unpack "H*", pack "Q<", $value
1361	}	1492	}
		1493
		1494	sub enc_device($$);
		1495	sub dec_device($$);
1362		1496
1363	our %bcde_dec = (	1497	our %bcde_dec = (
1364	BCDE_FORMAT_DEVICE , \&dec_device,	1498	BCDE_FORMAT_DEVICE , \&dec_device,
1365	# # for round-trip verification	1499	# # for round-trip verification
1366	# BCDE_FORMAT_DEVICE , sub {	1500	# BCDE_FORMAT_DEVICE , sub {
…		…
1372	BCDE_FORMAT_STRING , sub { shift },	1506	BCDE_FORMAT_STRING , sub { shift },
1373	BCDE_FORMAT_GUID , sub { dec_wguid enc_wguid shift },	1507	BCDE_FORMAT_GUID , sub { dec_wguid enc_wguid shift },
1374	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} },
1375	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
1376	BCDE_FORMAT_BOOLEAN , sub { shift eq "00" ? 0 : 1 },	1510	BCDE_FORMAT_BOOLEAN , sub { shift eq "00" ? 0 : 1 },
1377	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
1378	);	1512	);
1379		1513
1380	our %bcde_enc = (	1514	our %bcde_enc = (
1381	BCDE_FORMAT_DEVICE , sub { binary => enc_device shift },	1515	BCDE_FORMAT_DEVICE , sub { binary => enc_device $_[0], $_[1] },
1382	BCDE_FORMAT_STRING , sub { sz => shift },	1516	BCDE_FORMAT_STRING , sub { sz => shift },
1383	BCDE_FORMAT_GUID , sub { sz => "{" . (dec_guid enc_wguid shift) . "}" },	1517	BCDE_FORMAT_GUID , sub { sz => "{" . (dec_guid enc_wguid shift) . "}" },
1384	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 ] },
1385	BCDE_FORMAT_INTEGER , sub { binary => enc_integer shift },	1519	BCDE_FORMAT_INTEGER , sub { binary => enc_integer shift },
1386	BCDE_FORMAT_BOOLEAN , sub { binary => shift ? "01" : "00" },	1520	BCDE_FORMAT_BOOLEAN , sub { binary => shift ? "01" : "00" },
1387	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 },
1388	);	1522	);
1389		1523
1390	# BCD Elements	1524	# BCD Elements
1391	our %bcde = (	1525	our %bcde_byclass = (
		1526	any => {
1392	0x11000001 => 'device',	1527	0x11000001 => 'device',
1393	0x12000002 => 'path',	1528	0x12000002 => 'path',
1394	0x12000004 => 'description',	1529	0x12000004 => 'description',
1395	0x12000005 => 'locale',	1530	0x12000005 => 'locale',
1396	0x14000006 => 'inherit',	1531	0x14000006 => 'inherit',
1397	0x15000007 => 'truncatememory',	1532	0x15000007 => 'truncatememory',
1398	0x14000008 => 'recoverysequence',	1533	0x14000008 => 'recoverysequence',
1399	0x16000009 => 'recoveryenabled',	1534	0x16000009 => 'recoveryenabled',
1400	0x1700000a => 'badmemorylist',	1535	0x1700000a => 'badmemorylist',
1401	0x1600000b => 'badmemoryaccess',	1536	0x1600000b => 'badmemoryaccess',
1402	0x1500000c => 'firstmegabytepolicy',	1537	0x1500000c => 'firstmegabytepolicy',
1403	0x1500000d => 'relocatephysical',	1538	0x1500000d => 'relocatephysical',
1404	0x1500000e => 'avoidlowmemory',	1539	0x1500000e => 'avoidlowmemory',
1405	0x1600000f => 'traditionalkseg',	1540	0x1600000f => 'traditionalkseg',
1406	0x16000010 => 'bootdebug',	1541	0x16000010 => 'bootdebug',
1407	0x15000011 => 'debugtype',	1542	0x15000011 => 'debugtype',
1408	0x15000012 => 'debugaddress',	1543	0x15000012 => 'debugaddress',
1409	0x15000013 => 'debugport',	1544	0x15000013 => 'debugport',
1410	0x15000014 => 'baudrate',	1545	0x15000014 => 'baudrate',
1411	0x15000015 => 'channel',	1546	0x15000015 => 'channel',
1412	0x12000016 => 'targetname',	1547	0x12000016 => 'targetname',
1413	0x16000017 => 'noumex',	1548	0x16000017 => 'noumex',
1414	0x15000018 => 'debugstart',	1549	0x15000018 => 'debugstart',
1415	0x12000019 => 'busparams',	1550	0x12000019 => 'busparams',
1416	0x1500001a => 'hostip',	1551	0x1500001a => 'hostip',
1417	0x1500001b => 'port',	1552	0x1500001b => 'port',
1418	0x1600001c => 'dhcp',	1553	0x1600001c => 'dhcp',
1419	0x1200001d => 'key',	1554	0x1200001d => 'key',
1420	0x1600001e => 'vm',	1555	0x1600001e => 'vm',
1421	0x16000020 => 'bootems',	1556	0x16000020 => 'bootems',
1422	0x15000022 => 'emsport',	1557	0x15000022 => 'emsport',
1423	0x15000023 => 'emsbaudrate',	1558	0x15000023 => 'emsbaudrate',
1424	0x12000030 => 'loadoptions',	1559	0x12000030 => 'loadoptions',
1425	0x16000040 => 'advancedoptions',	1560	0x16000040 => 'advancedoptions',
1426	0x16000041 => 'optionsedit',	1561	0x16000041 => 'optionsedit',
1427	0x15000042 => 'keyringaddress',	1562	0x15000042 => 'keyringaddress',
1428	0x11000043 => 'bootstatdevice',	1563	0x11000043 => 'bootstatdevice',
1429	0x12000044 => 'bootstatfilepath',	1564	0x12000044 => 'bootstatfilepath',
1430	0x16000045 => 'preservebootstat',	1565	0x16000045 => 'preservebootstat',
1431	0x16000046 => 'graphicsmodedisabled',	1566	0x16000046 => 'graphicsmodedisabled',
1432	0x15000047 => 'configaccesspolicy',	1567	0x15000047 => 'configaccesspolicy',
1433	0x16000048 => 'nointegritychecks',	1568	0x16000048 => 'nointegritychecks',
1434	0x16000049 => 'testsigning',	1569	0x16000049 => 'testsigning',
1435	0x1200004a => 'fontpath',	1570	0x1200004a => 'fontpath',
1436	0x1500004b => 'integrityservices',	1571	0x1500004b => 'integrityservices',
1437	0x1500004c => 'volumebandid',	1572	0x1500004c => 'volumebandid',
1438	0x16000050 => 'extendedinput',	1573	0x16000050 => 'extendedinput',
1439	0x15000051 => 'initialconsoleinput',	1574	0x15000051 => 'initialconsoleinput',
1440	0x15000052 => 'graphicsresolution',	1575	0x15000052 => 'graphicsresolution',
1441	0x16000053 => 'restartonfailure',	1576	0x16000053 => 'restartonfailure',
1442	0x16000054 => 'highestmode',	1577	0x16000054 => 'highestmode',
1443	0x16000060 => 'isolatedcontext',	1578	0x16000060 => 'isolatedcontext',
1444	0x15000065 => 'displaymessage',	1579	0x15000065 => 'displaymessage',
1445	0x15000066 => 'displaymessageoverride',	1580	0x15000066 => 'displaymessageoverride',
1446	0x16000068 => 'nobootuxtext',	1581	0x16000068 => 'nobootuxtext',
1447	0x16000069 => 'nobootuxprogress',	1582	0x16000069 => 'nobootuxprogress',
1448	0x1600006a => 'nobootuxfade',	1583	0x1600006a => 'nobootuxfade',
1449	0x1600006b => 'bootuxreservepooldebug',	1584	0x1600006b => 'bootuxreservepooldebug',
1450	0x1600006c => 'bootuxdisabled',	1585	0x1600006c => 'bootuxdisabled',
1451	0x1500006d => 'bootuxfadeframes',	1586	0x1500006d => 'bootuxfadeframes',
1452	0x1600006e => 'bootuxdumpstats',	1587	0x1600006e => 'bootuxdumpstats',
1453	0x1600006f => 'bootuxshowstats',	1588	0x1600006f => 'bootuxshowstats',
1454	0x16000071 => 'multibootsystem',	1589	0x16000071 => 'multibootsystem',
1455	0x16000072 => 'nokeyboard',	1590	0x16000072 => 'nokeyboard',
1456	0x15000073 => 'aliaswindowskey',	1591	0x15000073 => 'aliaswindowskey',
1457	0x16000074 => 'bootshutdowndisabled',	1592	0x16000074 => 'bootshutdowndisabled',
1458	0x15000075 => 'performancefrequency',	1593	0x15000075 => 'performancefrequency',
1459	0x15000076 => 'securebootrawpolicy',	1594	0x15000076 => 'securebootrawpolicy',
1460	0x17000077 => 'allowedinmemorysettings',	1595	0x17000077 => 'allowedinmemorysettings',
1461	0x15000079 => 'bootuxtransitiontime',	1596	0x15000079 => 'bootuxtransitiontime',
1462	0x1600007a => 'mobilegraphics',	1597	0x1600007a => 'mobilegraphics',
1463	0x1600007b => 'forcefipscrypto',	1598	0x1600007b => 'forcefipscrypto',
1464	0x1500007d => 'booterrorux',	1599	0x1500007d => 'booterrorux',
1465	0x1600007e => 'flightsigning',	1600	0x1600007e => 'flightsigning',
1466	0x1500007f => 'measuredbootlogformat',	1601	0x1500007f => 'measuredbootlogformat',
1467	0x15000080 => 'displayrotation',	1602	0x15000080 => 'displayrotation',
1468	0x15000081 => 'logcontrol',	1603	0x15000081 => 'logcontrol',
1469	0x16000082 => 'nofirmwaresync',	1604	0x16000082 => 'nofirmwaresync',
1470	0x11000084 => 'windowssyspart',	1605	0x11000084 => 'windowssyspart',
1471	0x16000087 => 'numlock',	1606	0x16000087 => 'numlock',
1472	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 => {
1473	0x24000001 => 'displayorder',	1632	0x24000001 => 'displayorder',
1474	0x21000001 => 'filedevice',
1475	0x21000001 => 'osdevice',
1476	0x25000001 => 'passcount',
1477	0x26000001 => 'pxesoftreboot',
1478	0x22000002 => 'applicationname',
1479	0x24000002 => 'bootsequence',	1633	0x24000002 => 'bootsequence',
1480	0x22000002 => 'filepath',
1481	0x22000002 => 'systemroot',
1482	0x25000002 => 'testmix',
1483	0x26000003 => 'cacheenable',
1484	0x26000003 => 'customsettings',
1485	0x23000003 => 'default',	1634	0x23000003 => 'default',
1486	0x25000003 => 'failurecount',
1487	0x23000003 => 'resumeobject',
1488	0x26000004 => 'failuresenabled',
1489	0x26000004 => 'pae',
1490	0x26000004 => 'stampdisks',
1491	0x25000004 => 'testtofail',
1492	0x25000004 => 'timeout',	1635	0x25000004 => 'timeout',
1493	0x21000005 => 'associatedosdevice',
1494	0x26000005 => 'cacheenable',
1495	0x26000005 => 'resume',	1636	0x26000005 => 'resume',
1496	0x25000005 => 'stridefailcount',
1497	0x26000006 => 'debugoptionenabled',
1498	0x25000006 => 'invcfailcount',
1499	0x23000006 => 'resumeobject',	1637	0x23000006 => 'resumeobject',
1500	0x25000007 => 'bootux',
1501	0x25000007 => 'matsfailcount',
1502	0x24000007 => 'startupsequence',	1638	0x24000007 => 'startupsequence',
1503	0x25000008 => 'bootmenupolicy',
1504	0x25000008 => 'randfailcount',
1505	0x25000009 => 'chckrfailcount',
1506	0x26000010 => 'detecthal',
1507	0x24000010 => 'toolsdisplayorder',	1639	0x24000010 => 'toolsdisplayorder',
1508	0x22000011 => 'kernel',
1509	0x22000012 => 'hal',
1510	0x22000013 => 'dbgtransport',
1511	0x26000020 => 'displaybootmenu',	1640	0x26000020 => 'displaybootmenu',
1512	0x25000020 => 'nx',
1513	0x26000021 => 'noerrordisplay',	1641	0x26000021 => 'noerrordisplay',
1514	0x25000021 => 'pae',
1515	0x21000022 => 'bcddevice',	1642	0x21000022 => 'bcddevice',
1516	0x26000022 => 'winpe',
1517	0x22000023 => 'bcdfilepath',	1643	0x22000023 => 'bcdfilepath',
1518	0x26000024 => 'hormenabled',	1644	0x26000024 => 'hormenabled',
1519	0x26000024 => 'hormenabled',
1520	0x26000024 => 'nocrashautoreboot',
1521	0x26000025 => 'hiberboot',	1645	0x26000025 => 'hiberboot',
1522	0x26000025 => 'lastknowngood',
1523	0x26000026 => 'oslnointegritychecks',
1524	0x22000026 => 'passwordoverride',	1646	0x22000026 => 'passwordoverride',
1525	0x26000027 => 'osltestsigning',
1526	0x22000027 => 'pinpassphraseoverride',	1647	0x22000027 => 'pinpassphraseoverride',
1527	0x26000028 => 'processcustomactionsfirst',	1648	0x26000028 => 'processcustomactionsfirst',
1528	0x27000030 => 'customactions',	1649	0x27000030 => 'customactions',
1529	0x26000030 => 'nolowmem',
1530	0x26000031 => 'persistbootsequence',	1650	0x26000031 => 'persistbootsequence',
1531	0x25000031 => 'removememory',
1532	0x25000032 => 'increaseuserva',
1533	0x26000032 => 'skipstartupsequence',	1651	0x26000032 => 'skipstartupsequence',
1534	0x25000033 => 'perfmem',
1535	0x22000040 => 'fverecoveryurl',	1652	0x22000040 => 'fverecoveryurl',
1536	0x26000040 => 'vga',
1537	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',
1538	0x26000041 => 'quietboot',	1706	0x26000041 => 'quietboot',
1539	0x26000042 => 'novesa',	1707	0x26000042 => 'novesa',
1540	0x26000043 => 'novga',	1708	0x26000043 => 'novga',
1541	0x25000050 => 'clustermodeaddressing',	1709	0x25000050 => 'clustermodeaddressing',
1542	0x26000051 => 'usephysicaldestination',	1710	0x26000051 => 'usephysicaldestination',
1543	0x25000052 => 'restrictapiccluster',	1711	0x25000052 => 'restrictapiccluster',
1544	0x22000053 => 'evstore',	1712	0x22000053 => 'evstore',
1545	0x26000054 => 'uselegacyapicmode',	1713	0x26000054 => 'uselegacyapicmode',
1546	0x26000060 => 'onecpu',	1714	0x26000060 => 'onecpu',
1547	0x25000061 => 'numproc',	1715	0x25000061 => 'numproc',
1548	0x26000062 => 'maxproc',	1716	0x26000062 => 'maxproc',
1549	0x25000063 => 'configflags',	1717	0x25000063 => 'configflags',
1550	0x26000064 => 'maxgroup',	1718	0x26000064 => 'maxgroup',
1551	0x26000065 => 'groupaware',	1719	0x26000065 => 'groupaware',
1552	0x25000066 => 'groupsize',	1720	0x25000066 => 'groupsize',
1553	0x26000070 => 'usefirmwarepcisettings',	1721	0x26000070 => 'usefirmwarepcisettings',
1554	0x25000071 => 'msi',	1722	0x25000071 => 'msi',
1555	0x25000072 => 'pciexpress',	1723	0x25000072 => 'pciexpress',
1556	0x25000080 => 'safeboot',	1724	0x25000080 => 'safeboot',
1557	0x26000081 => 'safebootalternateshell',	1725	0x26000081 => 'safebootalternateshell',
1558	0x26000090 => 'bootlog',	1726	0x26000090 => 'bootlog',
1559	0x26000091 => 'sos',	1727	0x26000091 => 'sos',
1560	0x260000a0 => 'debug',	1728	0x260000a0 => 'debug',
1561	0x260000a1 => 'halbreakpoint',	1729	0x260000a1 => 'halbreakpoint',
1562	0x260000a2 => 'useplatformclock',	1730	0x260000a2 => 'useplatformclock',
1563	0x260000a3 => 'forcelegacyplatform',	1731	0x260000a3 => 'forcelegacyplatform',
1564	0x260000a4 => 'useplatformtick',	1732	0x260000a4 => 'useplatformtick',
1565	0x260000a5 => 'disabledynamictick',	1733	0x260000a5 => 'disabledynamictick',
1566	0x250000a6 => 'tscsyncpolicy',	1734	0x250000a6 => 'tscsyncpolicy',
1567	0x260000b0 => 'ems',	1735	0x260000b0 => 'ems',
1568	0x250000c0 => 'forcefailure',	1736	0x250000c0 => 'forcefailure',
1569	0x250000c1 => 'driverloadfailurepolicy',	1737	0x250000c1 => 'driverloadfailurepolicy',
1570	0x250000c2 => 'bootmenupolicy',	1738	0x250000c2 => 'bootmenupolicy',
1571	0x260000c3 => 'onetimeadvancedoptions',	1739	0x260000c3 => 'onetimeadvancedoptions',
1572	0x260000c4 => 'onetimeoptionsedit',	1740	0x260000c4 => 'onetimeoptionsedit',
1573	0x250000e0 => 'bootstatuspolicy',	1741	0x250000e0 => 'bootstatuspolicy',
1574	0x260000e1 => 'disableelamdrivers',	1742	0x260000e1 => 'disableelamdrivers',
1575	0x250000f0 => 'hypervisorlaunchtype',	1743	0x250000f0 => 'hypervisorlaunchtype',
1576	0x220000f1 => 'hypervisorpath',	1744	0x220000f1 => 'hypervisorpath',
1577	0x260000f2 => 'hypervisordebug',	1745	0x260000f2 => 'hypervisordebug',
1578	0x250000f3 => 'hypervisordebugtype',	1746	0x250000f3 => 'hypervisordebugtype',
1579	0x250000f4 => 'hypervisordebugport',	1747	0x250000f4 => 'hypervisordebugport',
1580	0x250000f5 => 'hypervisorbaudrate',	1748	0x250000f5 => 'hypervisorbaudrate',
1581	0x250000f6 => 'hypervisorchannel',	1749	0x250000f6 => 'hypervisorchannel',
1582	0x250000f7 => 'bootux',	1750	0x250000f7 => 'bootux',
1583	0x260000f8 => 'hypervisordisableslat',	1751	0x260000f8 => 'hypervisordisableslat',
1584	0x220000f9 => 'hypervisorbusparams',	1752	0x220000f9 => 'hypervisorbusparams',
1585	0x250000fa => 'hypervisornumproc',	1753	0x250000fa => 'hypervisornumproc',
1586	0x250000fb => 'hypervisorrootprocpernode',	1754	0x250000fb => 'hypervisorrootprocpernode',
1587	0x260000fc => 'hypervisoruselargevtlb',	1755	0x260000fc => 'hypervisoruselargevtlb',
1588	0x250000fd => 'hypervisorhostip',	1756	0x250000fd => 'hypervisorhostip',
1589	0x250000fe => 'hypervisorhostport',	1757	0x250000fe => 'hypervisorhostport',
1590	0x250000ff => 'hypervisordebugpages',	1758	0x250000ff => 'hypervisordebugpages',
1591	0x25000100 => 'tpmbootentropy',	1759	0x25000100 => 'tpmbootentropy',
1592	0x22000110 => 'hypervisorusekey',	1760	0x22000110 => 'hypervisorusekey',
1593	0x22000112 => 'hypervisorproductskutype',	1761	0x22000112 => 'hypervisorproductskutype',
1594	0x25000113 => 'hypervisorrootproc',	1762	0x25000113 => 'hypervisorrootproc',
1595	0x26000114 => 'hypervisordhcp',	1763	0x26000114 => 'hypervisordhcp',
1596	0x25000115 => 'hypervisoriommupolicy',	1764	0x25000115 => 'hypervisoriommupolicy',
1597	0x26000116 => 'hypervisorusevapic',	1765	0x26000116 => 'hypervisorusevapic',
1598	0x22000117 => 'hypervisorloadoptions',	1766	0x22000117 => 'hypervisorloadoptions',
1599	0x25000118 => 'hypervisormsrfilterpolicy',	1767	0x25000118 => 'hypervisormsrfilterpolicy',
1600	0x25000119 => 'hypervisormmionxpolicy',	1768	0x25000119 => 'hypervisormmionxpolicy',
1601	0x2500011a => 'hypervisorschedulertype',	1769	0x2500011a => 'hypervisorschedulertype',
1602	0x25000120 => 'xsavepolicy',	1770	0x25000120 => 'xsavepolicy',
1603	0x25000121 => 'xsaveaddfeature0',	1771	0x25000121 => 'xsaveaddfeature0',
1604	0x25000122 => 'xsaveaddfeature1',	1772	0x25000122 => 'xsaveaddfeature1',
1605	0x25000123 => 'xsaveaddfeature2',	1773	0x25000123 => 'xsaveaddfeature2',
1606	0x25000124 => 'xsaveaddfeature3',	1774	0x25000124 => 'xsaveaddfeature3',
1607	0x25000125 => 'xsaveaddfeature4',	1775	0x25000125 => 'xsaveaddfeature4',
1608	0x25000126 => 'xsaveaddfeature5',	1776	0x25000126 => 'xsaveaddfeature5',
1609	0x25000127 => 'xsaveaddfeature6',	1777	0x25000127 => 'xsaveaddfeature6',
1610	0x25000128 => 'xsaveaddfeature7',	1778	0x25000128 => 'xsaveaddfeature7',
1611	0x25000129 => 'xsaveremovefeature',	1779	0x25000129 => 'xsaveremovefeature',
1612	0x2500012a => 'xsaveprocessorsmask',	1780	0x2500012a => 'xsaveprocessorsmask',
1613	0x2500012b => 'xsavedisable',	1781	0x2500012b => 'xsavedisable',
1614	0x2500012c => 'kerneldebugtype',	1782	0x2500012c => 'kerneldebugtype',
1615	0x2200012d => 'kernelbusparams',	1783	0x2200012d => 'kernelbusparams',
1616	0x2500012e => 'kerneldebugaddress',	1784	0x2500012e => 'kerneldebugaddress',
1617	0x2500012f => 'kerneldebugport',	1785	0x2500012f => 'kerneldebugport',
1618	0x25000130 => 'claimedtpmcounter',	1786	0x25000130 => 'claimedtpmcounter',
1619	0x25000131 => 'kernelchannel',	1787	0x25000131 => 'kernelchannel',
1620	0x22000132 => 'kerneltargetname',	1788	0x22000132 => 'kerneltargetname',
1621	0x25000133 => 'kernelhostip',	1789	0x25000133 => 'kernelhostip',
1622	0x25000134 => 'kernelport',	1790	0x25000134 => 'kernelport',
1623	0x26000135 => 'kerneldhcp',	1791	0x26000135 => 'kerneldhcp',
1624	0x22000136 => 'kernelkey',	1792	0x22000136 => 'kernelkey',
1625	0x22000137 => 'imchivename',	1793	0x22000137 => 'imchivename',
1626	0x21000138 => 'imcdevice',	1794	0x21000138 => 'imcdevice',
1627	0x25000139 => 'kernelbaudrate',	1795	0x25000139 => 'kernelbaudrate',
1628	0x22000140 => 'mfgmode',	1796	0x22000140 => 'mfgmode',
1629	0x26000141 => 'event',	1797	0x26000141 => 'event',
1630	0x25000142 => 'vsmlaunchtype',	1798	0x25000142 => 'vsmlaunchtype',
1631	0x25000144 => 'hypervisorenforcedcodeintegrity',	1799	0x25000144 => 'hypervisorenforcedcodeintegrity',
1632	0x26000145 => 'enablebootdebugpolicy',
1633	0x26000146 => 'enablebootorderclean',
1634	0x26000147 => 'enabledeviceid',
1635	0x26000148 => 'enableffuloader',
1636	0x26000149 => 'enableiuloader',
1637	0x2600014a => 'enablemassstorage',
1638	0x2600014b => 'enablerpmbprovisioning',
1639	0x2600014c => 'enablesecurebootpolicy',
1640	0x2600014d => 'enablestartcharge',
1641	0x2600014e => 'enableresettpm',
1642	0x21000150 => 'systemdatadevice',	1800	0x21000150 => 'systemdatadevice',
1643	0x21000151 => 'osarcdevice',	1801	0x21000151 => 'osarcdevice',
1644	0x21000153 => 'osdatadevice',	1802	0x21000153 => 'osdatadevice',
1645	0x21000154 => 'bspdevice',	1803	0x21000154 => 'bspdevice',
1646	0x21000155 => 'bspfilepath',	1804	0x21000155 => 'bspfilepath',
1647	0x26000202 => 'skipffumode',	1805	},
1648	0x26000203 => 'forceffumode',	1806	resume => {
1649	0x25000510 => 'chargethreshold',
1650	0x26000512 => 'offmodecharging',
1651	0x25000aaa => 'bootflow',
1652	0x35000001 => 'ramdiskimageoffset',
1653	0x35000002 => 'ramdisktftpclientport',
1654	0x31000003 => 'ramdisksdidevice',
1655	0x32000004 => 'ramdisksdipath',
1656	0x35000005 => 'ramdiskimagelength',
1657	0x36000006 => 'exportascd',
1658	0x35000007 => 'ramdisktftpblocksize',
1659	0x35000008 => 'ramdisktftpwindowsize',
1660	0x36000009 => 'ramdiskmcenabled',
1661	0x3600000a => 'ramdiskmctftpfallback',
1662	0x3600000b => 'ramdisktftpvarwindow',
1663	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',
1664	0x42000002 => 'applicationrelativepath',	1819	0x22000002 => 'applicationname',
1665	0x42000003 => 'ramdiskdevicerelativepath',	1820	},
1666	0x46000004 => 'omitosloaderelements',
1667	0x47000006 => 'elementstomigrate',
1668	0x46000010 => 'recoveryos',
1669	);	1821	);
1670		1822
1671	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	);
1672		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
1673	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
1674	$bcde{$_[0]} // sprintf "custom:%08x", $_[0]	1864	sprintf "custom:%08x", $_[0]
1675	}	1865	}
1676		1866
		1867	# encodes (elem as name, type)
1677	sub enc_bcde_id($) {	1868	sub enc_bcde_id($$) {
1678	$_[0] =~ /^custom:([0-9a-fA-F]{8}$)/	1869	$_[0] =~ /^custom:(?:0x)?([0-9a-fA-F]{8}$)/
1679	? hex $1	1870	and return hex $1;
1680	: $rbcde{$_[0]}	1871
		1872	for my $class (@bcde_typeclass) {
		1873	if (($_[1] & $class->[0]) == $class->[1]) {
		1874	if (my $value = $rbcde_byclass{$class->[2]}{$_[0]}) {
		1875	return $value;
		1876	}
		1877	}
		1878	}
		1879
		1880	undef
1681	}	1881	}
1682		1882
1683	# decode/encode bcd device element - the horror, no documentaion	1883	# decode/encode bcd device element - the horror, no documentaion
1684	# whatsoever, supercomplex, superinconsistent.	1884	# whatsoever, supercomplex, superinconsistent.
1685		1885
…		…
1688	our @part_type = qw(gpt mbr raw);	1888	our @part_type = qw(gpt mbr raw);
1689		1889
1690	our $NULL_DEVICE = "\x00" x 16;	1890	our $NULL_DEVICE = "\x00" x 16;
1691		1891
1692	# biggest bitch to decode, ever	1892	# biggest bitch to decode, ever
1693	# this decoded a device portion after the GUID	1893	# this decodes a device portion after the GUID
1694	sub dec_device_($);	1894	sub dec_device_($$);
1695	sub dec_device_($) {	1895	sub dec_device_($$) {
1696	my ($device) = @_;	1896	my ($device, $type) = @_;
1697		1897
1698	my $res;	1898	my $res;
1699		1899
1700	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, "";
1701		1901
…		…
1746		1946
1747	my $partid = $parttype eq "gpt" ? dec_guid $partdata	1947	my $partid = $parttype eq "gpt" ? dec_guid $partdata
1748	: $type eq "partition" ? unpack "Q<", $partdata # byte offset to partition start	1948	: $type eq "partition" ? unpack "Q<", $partdata # byte offset to partition start
1749	: unpack "L<", $partdata; # partition number, one-based	1949	: unpack "L<", $partdata; # partition number, one-based
1750		1950
1751	(my $parent, $device) = dec_device_ $device;	1951	(my $parent, $device) = dec_device_ $device, $type;
1752		1952
1753	$res .= "=";	1953	$res .= "=";
1754	$res .= "<$parent>";	1954	$res .= "<$parent>";
1755	$res .= ",$blocktype,$parttype,$diskid,$partid";	1955	$res .= ",$blocktype,$parttype,$diskid,$partid";
1756		1956
…		…
1776	or die "unsupported file descriptor version '$fver'\n";	1976	or die "unsupported file descriptor version '$fver'\n";
1777		1977
1778	$ftype == 5	1978	$ftype == 5
1779	or die "unsupported file descriptor path type '$type'\n";	1979	or die "unsupported file descriptor path type '$type'\n";
1780		1980
1781	(my $parent, $path) = dec_device_ $path;	1981	(my $parent, $path) = dec_device_ $path, $type;
1782		1982
1783	$path = $dec_path->($path, "file device without path");	1983	$path = $dec_path->($path, "file device without path");
1784		1984
1785	($parent, $path)	1985	($parent, $path)
1786	};	1986	};
…		…
1792		1992
1793	} elsif ($blocktype eq "vhd") {	1993	} elsif ($blocktype eq "vhd") {
1794	$device =~ s/^\x00{20}//s	1994	$device =~ s/^\x00{20}//s
1795	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";
1796		1996
1797	(my $parent, $device) = dec_device_ $device;	1997	(my $parent, $device) = dec_device_ $device, $type;
1798		1998
1799	$res .= "=vhd,<$parent>";	1999	$res .= "=vhd,<$parent>";
1800		2000
1801	} elsif ($blocktype eq "ramdisk") {	2001	} elsif ($blocktype eq "ramdisk") {
1802	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, "";
…		…
1815	my ($mode, $elem, $parent) = unpack "VVV", substr $device, 0, 4 * 3, "";	2015	my ($mode, $elem, $parent) = unpack "VVV", substr $device, 0, 4 * 3, "";
1816		2016
1817	if ($parent) {	2017	if ($parent) {
1818	# 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
1819	$parent = substr $device, $parent - 4 * 3 - 4 * 4, 1e9, "";	2019	$parent = substr $device, $parent - 4 * 3 - 4 * 4, 1e9, "";
1820	($parent, my $tail) = dec_device_ $parent;	2020	($parent, my $tail) = dec_device_ $parent, $type;
1821	0 == length $tail	2021	0 == length $tail
1822	or die "trailing data after locate device parent\n";	2022	or die "trailing data after locate device parent\n";
1823	} else {	2023	} else {
1824	$parent = "null";	2024	$parent = "null";
1825	}	2025	}
…		…
1831		2031
1832	if ($mode == 0) { # "Element"	2032	if ($mode == 0) { # "Element"
1833	!length $path	2033	!length $path
1834	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";
1835		2035
1836	$elem = dec_bcde_id $elem;	2036	$elem = dec_bcde_id $elem, $type;
1837	$res .= "element,$elem";	2037	$res .= "element,$elem";
1838		2038
1839	} elsif ($mode == 1) { # "String"	2039	} elsif ($mode == 1) { # "String"
1840	!$elem	2040	!$elem
1841	or die "device locate mode 1 having non-zero element\n";	2041	or die "device locate mode 1 having non-zero element\n";
…		…
1866		2066
1867	($res, $tail)	2067	($res, $tail)
1868	}	2068	}
1869		2069
1870	# decode a full binary BCD device descriptor	2070	# decode a full binary BCD device descriptor
1871	sub dec_device($) {	2071	sub dec_device($$) {
1872	my ($device) = @_;	2072	my ($device, $type) = @_;
1873		2073
1874	$device = pack "H*", $device;	2074	$device = pack "H*", $device;
1875		2075
1876	my $guid = dec_guid substr $device, 0, 16, "";	2076	my $guid = dec_guid substr $device, 0, 16, "";
1877	$guid = $guid eq "00000000-0000-0000-0000-000000000000"	2077	$guid = $guid eq "00000000-0000-0000-0000-000000000000"
1878	? "" : "{$guid}";	2078	? "" : "{$guid}";
1879		2079
1880	eval {	2080	eval {
1881	my ($dev, $tail) = dec_device_ $device;	2081	my ($dev, $tail) = dec_device_ $device, $type;
1882		2082
1883	$tail eq ""	2083	$tail eq ""
1884	or die "unsupported trailing data after device descriptor\n";	2084	or die "unsupported trailing data after device descriptor\n";
1885		2085
1886	"$guid$dev"	2086	"$guid$dev"
…		…
1898		2098
1899	undef	2099	undef
1900	}	2100	}
1901		2101
1902	# encode the device portion after the GUID	2102	# encode the device portion after the GUID
1903	sub enc_device_;	2103	sub enc_device_($$);
1904	sub enc_device_ {	2104	sub enc_device_($$) {
1905	my ($device) = @_;	2105	my ($device, $type) = @_;
1906		2106
1907	my $enc_path = sub {	2107	my $enc_path = sub {
1908	my $path = shift;	2108	my $path = shift;
1909	$path =~ s/\//\\/g;	2109	$path =~ s/\//\\/g;
1910	(Encode::encode "UTF-16LE", $path) . "\x00\x00"	2110	(Encode::encode "UTF-16LE", $path) . "\x00\x00"
…		…
1928		2128
1929	my $parse_parent = sub {	2129	my $parse_parent = sub {
1930	my $parent;	2130	my $parent;
1931		2131
1932	if (s/^<//) {	2132	if (s/^<//) {
1933	($parent, $_) = enc_device_ $_;	2133	($parent, $_) = enc_device_ $_, $type;
1934	s/^>//	2134	s/^>//
1935	or die "$device: syntax error: parent device not followed by '>'\n";	2135	or die "$device: syntax error: parent device not followed by '>'\n";
1936	} else {	2136	} else {
1937	$parent = $NULL_DEVICE;	2137	$parent = $NULL_DEVICE;
1938	}	2138	}
…		…
2026		2226
2027	s/^,//	2227	s/^,//
2028	or die "$_: missing comma after locate parent device\n";	2228	or die "$_: missing comma after locate parent device\n";
2029		2229
2030	if (s/^element,//) {	2230	if (s/^element,//) {
2031	s/^([0-9a-z]+)//i	2231	s/^([0-9a-z:]+)//i
2032	or die "$_ 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";
2033	$elem = enc_bcde_id $1;	2233	$elem = enc_bcde_id $1, $type;
2034	$mode = 0;	2234	$mode = 0;
2035	$path = $enc_path->("");	2235	$path = $enc_path->("");
2036		2236
2037	} elsif (s/^path,//) {	2237	} elsif (s/^path,//) {
2038	$mode = 1;	2238	$mode = 1;
…		…
2105	or die "$_: malformed or missing vmbus interface instance guid\n";	2305	or die "$_: malformed or missing vmbus interface instance guid\n";
2106	my $instance = enc_guid $1;	2306	my $instance = enc_guid $1;
2107		2307
2108	$payload = pack "a16a16x24", $type, $instance;	2308	$payload = pack "a16a16x24", $type, $instance;
2109		2309
		2310	# } elsif ($type eq "udp") {
		2311	# $payload = pack "Va16", 1, "12345678";
		2312
2110	} else {	2313	} else {
2111	die "$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";
2112	}	2315	}
2113		2316
2114	return (	2317	return (
…		…
2117	);	2320	);
2118	}	2321	}
2119	}	2322	}
2120		2323
2121	# encode a full binary BCD device descriptor	2324	# encode a full binary BCD device descriptor
2122	sub enc_device {	2325	sub enc_device($$) {
2123	my ($device) = @_;	2326	my ($device, $type) = @_;
2124		2327
2125	my $guid = "\x00" x 16;	2328	my $guid = "\x00" x 16;
2126		2329
2127	if ($device =~ s/^\{([A-Za-z0-9\-]+)\}//) {	2330	if ($device =~ s/^\{([A-Za-z0-9\-]+)\}//) {
2128	$guid = enc_guid $1	2331	$guid = enc_guid $1
2129	or die "$device: does not start with valid guid\n";	2332	or die "$device: does not start with valid guid\n";
2130	}	2333	}
2131		2334
2132	my ($descriptor, $tail) = enc_device_ $device;	2335	my ($descriptor, $tail) = enc_device_ $device, $type;
2133		2336
2134	length $tail	2337	length $tail
2135	and die "$device: garbage after device descriptor\n";	2338	and die "$device: garbage after device descriptor\n";
2136		2339
2137	unpack "H*", $guid . $descriptor	2340	unpack "H*", $guid . $descriptor
…		…
2152	$k = $bcd_objects{$k} // $k;	2355	$k = $bcd_objects{$k} // $k;
2153		2356
2154	my $type = $v->{Description}[0]{Type}[1];	2357	my $type = $v->{Description}[0]{Type}[1];
2155		2358
2156	if ($type != $bcd_object_types{$k}) {	2359	if ($type != $bcd_object_types{$k}) {
2157	$type = $bcd_types{$type} // sprintf "0x%08x", $type;	2360	$kv{type} = $bcd_types{$type} // sprintf "0x%08x", $type;
2158	$kv{type} = $type;
2159	}	2361	}
2160		2362
2161	my $elems = $v->{Elements}[1];	2363	my $elems = $v->{Elements}[1];
2162		2364
2163	while (my ($k, $v) = each %$elems) {	2365	while (my ($k, $v) = each %$elems) {
2164	my $k = hex $k;	2366	my $k = hex $k;
2165		2367
2166	my $v = $bcde_dec{$k & BCDE_FORMAT}->($v->[0]{Element}[1]);	2368	my $v = $bcde_dec{$k & BCDE_FORMAT}->($v->[0]{Element}[1], $type);
2167	my $k = dec_bcde_id $k;	2369	my $k = dec_bcde_id $k, $type;
2168		2370
2169	$kv{$k} = $v;	2371	$kv{$k} = $v;
2170	}	2372	}
2171		2373
2172	$bcd{$k} = \%kv;	2374	$bcd{$k} = \%kv;
…		…
2213	my %elem;	2415	my %elem;
2214		2416
2215	while (my ($k, $v) = each %$v) {	2417	while (my ($k, $v) = each %$v) {
2216	next if $k eq "type";	2418	next if $k eq "type";
2217		2419
2218	$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";
2219	$elem{sprintf "%08x", $k} = [{	2421	$elem{sprintf "%08x", $k} = [{
2220	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)]
2221	}];	2423	}];
2222	}	2424	}
2223		2425
…		…
2239	Objects => [undef, \%objects],	2441	Objects => [undef, \%objects],
2240	}]]	2442	}]]
2241	}	2443	}
2242		2444
2243	#############################################################################	2445	#############################################################################
		2446	# edit instructions
2244		2447
2245	sub bcd_edit_eval {	2448	sub bcd_edit_eval {
2246	package pbcdedit;	2449	package pbcdedit;
2247		2450
2248	our ($PATH, $BCD, $DEFAULT);	2451	our ($PATH, $BCD, $DEFAULT);
…		…
2252	}	2455	}
2253		2456
2254	sub bcd_edit {	2457	sub bcd_edit {
2255	my ($path, $bcd, @insns) = @_;	2458	my ($path, $bcd, @insns) = @_;
2256		2459
2257	my $default = $bcd->{"{bootmgr}"}{resumeobject};	2460	my $default = $bcd->{"{bootmgr}"}{default};
2258		2461
2259	# prepare "officially visible" variables	2462	# prepare "officially visible" variables
2260	local $pbcdedit::PATH = $path;	2463	local $pbcdedit::PATH = $path;
2261	local $pbcdedit::BCD = $bcd;	2464	local $pbcdedit::BCD = $bcd;
2262	local $pbcdedit::DEFAULT = $default;	2465	local $pbcdedit::DEFAULT = $default;
…		…
2266		2469
2267	if ($insn eq "get") {	2470	if ($insn eq "get") {
2268	my $object = shift @insns;	2471	my $object = shift @insns;
2269	my $elem = shift @insns;	2472	my $elem = shift @insns;
2270		2473
2271	$object = $default if $object eq "{default}";	2474	$object = $object eq "{default}" ? $default : dec_wguid enc_wguid $object;
2272		2475
2273	print $bcd->{$object}{$elem}, "\n";	2476	print $bcd->{$object}{$elem}, "\n";
2274		2477
2275	} elsif ($insn eq "set") {	2478	} elsif ($insn eq "set") {
2276	my $object = shift @insns;	2479	my $object = shift @insns;
2277	my $elem = shift @insns;	2480	my $elem = shift @insns;
2278	my $value = shift @insns;	2481	my $value = shift @insns;
2279		2482
2280	$object = $default if $object eq "{default}";	2483	$object = $object eq "{default}" ? $default : dec_wguid enc_wguid $object;
2281		2484
2282	$bcd->{$object}{$elem} = $value;	2485	$bcd->{$object}{$elem} = $value;
2283		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
2284	} elsif ($insn eq "eval") {	2495	} elsif ($insn eq "eval") {
2285	bcd_edit_eval shift @insns;	2496	my $perl = shift @insns;
		2497	bcd_edit_eval "#line 1 'eval'\n$perl";
2286		2498
2287	} elsif ($insn eq "do") {	2499	} elsif ($insn eq "do") {
2288	my $path = shift @insns;	2500	my $path = shift @insns;
2289	my $file = file_load $path;	2501	my $file = file_load $path;
2290	bcd_edit_eval "#line 1 '$path'\n$file";	2502	bcd_edit_eval "#line 1 '$path'\n$file";
2291		2503
2292	} else {	2504	} else {
2293	die "$insn: not a recognized instruction for edit/parse\n";	2505	die "$insn: not a recognized instruction for create/edit/parse\n";
2294	}	2506	}
2295	}	2507	}
2296		2508
2297	}	2509	}
2298		2510
2299	#############################################################################	2511	#############################################################################
		2512	# other utilities
2300		2513
2301	# json to stdout	2514	# json to stdout
2302	sub prjson($) {	2515	sub prjson($) {
2303	print $json_coder->encode ($_[0]);	2516	print $json_coder->encode ($_[0]);
2304	}	2517	}
…		…
2308	my $json;	2521	my $json;
2309	1 while read STDIN, $json, 65536, length $json;	2522	1 while read STDIN, $json, 65536, length $json;
2310	$json_coder->decode ($json)	2523	$json_coder->decode ($json)
2311	}	2524	}
2312		2525
2313	# 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
2314	our %CMD = (	2575	our %CMD = (
2315	help => sub {	2576	help => sub {
2316	require Pod::Usage;	2577	require Pod::Usage;
2317	Pod::Usage::pod2usage (-verbose => 2);	2578	Pod::Usage::pod2usage (-verbose => 2, -quotes => "none", -noperldoc => 1);
2318	},	2579	},
2319		2580
2320	objects => sub {	2581	objects => sub {
2321	my %rbcd_types = reverse %bcd_types;	2582	my %rbcd_types = reverse %bcd_types;
2322	$_ = sprintf "%08x", $_ for values %rbcd_types;	2583	$_ = sprintf "%08x", $_ for values %rbcd_types;
…		…
2343		2604
2344	print "\n";	2605	print "\n";
2345		2606
2346	printf "%-39s %-23s %s\n", "Object GUID", "Alias", "(Hex) Default Type";	2607	printf "%-39s %-23s %s\n", "Object GUID", "Alias", "(Hex) Default Type";
2347	for my $name (sort keys %rbcd_objects) {	2608	for my $name (sort keys %rbcd_objects) {
2348	my $guid = $rbcd_objects{$name};	2609	my $guid = $rbcd_objects{$name};
2349	my $type = $bcd_object_types{$name};	2610	my $type = $bcd_object_types{$name};
2350	my $tname = $bcd_types{$type};	2611	my $tname = $bcd_types{$type};
2351		2612
2352	$type = $type ? sprintf "(%08x) %s", $type, $tname : "-";	2613	$type = $type ? sprintf "(%08x) %s", $type, $tname : "-";
2353		2614
2354	printf "%-39s %-23s %s\n", $guid, $name, $type;	2615	printf "%-39s %-23s %s\n", $guid, $name, $type;
…		…
2368	BCDE_FORMAT_GUID_LIST , "guid list",	2629	BCDE_FORMAT_GUID_LIST , "guid list",
2369	BCDE_FORMAT_INTEGER , "integer",	2630	BCDE_FORMAT_INTEGER , "integer",
2370	BCDE_FORMAT_BOOLEAN , "boolean",	2631	BCDE_FORMAT_BOOLEAN , "boolean",
2371	BCDE_FORMAT_INTEGER_LIST, "integer list",	2632	BCDE_FORMAT_INTEGER_LIST, "integer list",
2372	);	2633	);
2373	my %rbcde = reverse %bcde;
2374	$_ = sprintf "%08x", $_ for values %rbcde;
2375		2634
2376	my %element;	2635	my @element;
2377		2636
		2637	for my $class (sort keys %rbcde_byclass) {
		2638	my $rbcde = $rbcde_byclass{$class};
		2639
2378	unless ($json) {	2640	unless ($json) {
2379	print "\n";	2641	print "\n";
		2642	printf "Elements applicable to class(es): $class\n";
2380	printf "%-9s %-12s %s\n", "Element", "Format", "Name Alias";	2643	printf "%-9s %-12s %s\n", "Element", "Format", "Name Alias";
2381	}	2644	}
2382	for my $name (sort keys %rbcde) {	2645	for my $name (sort keys %$rbcde) {
2383	my $id = $rbcde{$name};	2646	my $id = $rbcde->{$name};
2384	my $format = $format_name{(hex $id) & BCDE_FORMAT};	2647	my $format = $format_name{$id & BCDE_FORMAT};
2385		2648
2386	if ($json) {	2649	if ($json) {
2387	$element{$id} = [$format, $name];	2650	push @element, [$class, $id * 1, $format, $name];
2388	} else {	2651	} else {
		2652	$id = sprintf "%08x", $id;
2389	printf "%-9s %-12s %s\n", $id, $format, $name;	2653	printf "%-9s %-12s %s\n", $id, $format, $name;
		2654	}
2390	}	2655	}
2391	}	2656	}
2392	print "\n" unless $json;	2657	print "\n" unless $json;
2393		2658
2394	prjson {	2659	prjson {
2395	version => $JSON_VERSION,	2660	version => $JSON_VERSION,
2396	element => \%element,	2661	element => \@element,
		2662	class => \@bcde_typeclass,
2397	} if $json;	2663	} if $json;
2398		2664
2399	},	2665	},
2400		2666
2401	export => sub {	2667	export => sub {
…		…
2404		2670
2405	import => sub {	2671	import => sub {
2406	regf_save shift, bcd_encode rdjson;	2672	regf_save shift, bcd_encode rdjson;
2407	},	2673	},
2408		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
2409	edit => sub {	2684	edit => sub {
2410	my $path = shift;	2685	my $path = shift;
		2686	my $stat = stat_get $path; # should actually be done at file load time
2411	my $bcd = bcd_decode regf_load $path;	2687	my $bcd = bcd_decode regf_load $path;
2412	bcd_edit $path, $bcd, @_;	2688	bcd_edit $path, $bcd, @_;
2413	regf_save $path, bcd_encode $bcd;	2689	regf_save $path, bcd_encode $bcd;
		2690	stat_set $path, $stat;
2414	},	2691	},
2415		2692
2416	parse => sub {	2693	parse => sub {
2417	my $path = shift;	2694	my $path = shift;
2418	my $bcd = bcd_decode regf_load $path;	2695	my $bcd = bcd_decode regf_load $path;
…		…
2427	"import-regf" => sub {	2704	"import-regf" => sub {
2428	regf_save shift, rdjson;	2705	regf_save shift, rdjson;
2429	},	2706	},
2430		2707
2431	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 {
2432	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";
2433		2717	for my $dev (@$lsblk) {
2434	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}) {
2435
2436	for my $dev (@{ $lsblk->{blockdevices} }) {
2437	my $pr = sub {
2438	printf "%-10s %-8.8s %-6.6s %-3s %s\n",	2719	printf "%-10s %-8.8s %-6.6s %-3s %s\n",
2439	$dev->{path}, $dev->{label}, $dev->{fstype}, $dev->{pttype}, $_[0];	2720	$dev->{path}, $dev->{label}, $dev->{fstype}, $dev->{pttype}, $bcd
2440	};
2441
2442	if ($dev->{type} eq "part") {
2443	if ($dev->{pttype} eq "gpt") {
2444	$pr->("partition=<null>,harddisk,gpt,$dev->{ptuuid},$dev->{partuuid}");
2445	} elsif ($dev->{pttype} eq "dos") { # why not "mbr" :(
2446	if ($dev->{partuuid} =~ /^([0-9a-f]{8})-([0-9a-f]{2})\z/i) {
2447	my ($diskid, $partno) = ($1, hex $2);
2448	$pr->("legacypartition=<null>,harddisk,mbr,$diskid,$partno");
2449	if (open my $fh, "/sys/class/block/$dev->{kname}/start") {
2450	my $start = 512 * readline $fh;
2451	$pr->("partition=<null>,harddisk,mbr,$diskid,$start");
2452	}	2721	if $bcd;
2453	}
2454	}	2722	}
2455	}	2723	}
2456	}	2724	}
2457	},	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	},
2458	);	2744	);
2459		2745
2460	my $cmd = shift;	2746	my $cmd = shift;
2461		2747
2462	unless (exists $CMD{$cmd}) {	2748	unless (exists $CMD{$cmd}) {

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