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Revision 1.9 by root, Wed Aug 14 22:54:28 2019 UTC vs.
Revision 1.55 by root, Thu Aug 22 07:55:41 2019 UTC

…		…
17	#	17	#
18	# You should have received a copy of the GNU General Public License	18	# You should have received a copy of the GNU General Public License
19	# along with this program. If not, see <https://www.gnu.org/licenses/>.	19	# along with this program. If not, see <https://www.gnu.org/licenses/>.
20	#	20	#
21		21
22	use 5.014; # numerous features needed	22	use 5.016; # numerous features need 5.14, __SUB__ needs 5.16
23		23
24	our $VERSION = '1.0';	24	our $VERSION = '1.3';
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	- editorial fixes to the documentation.
		30
		31	1.3 Sat Aug 17 07:04:15 CEST 2019
		32	- output of pbcdedit elements --json has changed, as it didn't
		33	take the reorganisation by classes fully into account.
		34	- json schema bumped to 3.
		35	- new "bcd-device" and "bcd-legacy-device" subcommands.
		36	- implement --json option for lsblk.
		37
		38	1.2 Fri Aug 16 00:20:41 CEST 2019
		39	- bcd element names now depend on the bcd object type they are in,
		40	also affects "elements" output.
		41	- json schema bumped to 2.
		42	- new version command.
		43	- numerous minor bugfixes.
		44
		45	EOF
26		46
27	=head1 NAME	47	=head1 NAME
28		48
29	pbcdedit - portable boot configuration data (BCD) store editor	49	pbcdedit - portable boot configuration data (BCD) store editor
30		50
31	=head1 SYNOPSIS	51	=head1 SYNOPSIS
32		52
33	pbcdedit help # output manual page	53	pbcdedit help # output manual page
		54	pbcdedit version # output version and changelog
		55
34	pbcdedit export path/to/BCD # output BCD hive as JSON	56	pbcdedit export path/to/BCD # output BCD hive as JSON
35	pbcdedit import path/to/bcd # convert standard input to BCD hive	57	pbcdedit import path/to/BCD # convert standard input to BCD hive
36	pbcdedit edit path/to/BCD edit-instructions...	58	pbcdedit edit path/to/BCD edit-instructions...
37		59
38	pbcdedit objects # list all supported object aliases and types	60	pbcdedit objects # list all supported object aliases and types
39	pbcdedit elements # list all supported bcd element aliases	61	pbcdedit elements # list all supported bcd element aliases
40		62
		63	# Example: enable text-based boot menu.
		64	pbcdedit edit /my/BCD set '{default}' bootmenupolicy 1
		65
		66	# Example change system device to first partition containing winload.
		67	pbcdedit edit /my/BCD \
		68	set '{default}' device 'locate=<null>,element,path' \
		69	set '{default}' osdevice 'locate=<null>,element,path'
		70
		71
41	=head1 DESCRIPTION	72	=head1 DESCRIPTION
42		73
43	This program allows you to create, read and modify Boot Configuration Data	74	This program allows you to create, read and modify Boot Configuration Data
44	(BCD) stores used by Windows Vista and newer versions of Windows.	75	(BCD) stores used by Windows Vista and newer versions of Windows.
45		76
…		…
58		89
59	=item Does not rely on Windows	90	=item Does not rely on Windows
60		91
61	As the "portable" in the name implies, this program does not rely on	92	As the "portable" in the name implies, this program does not rely on
62	C<bcdedit> or other windows programs or libraries, it works on any system	93	C<bcdedit> or other windows programs or libraries, it works on any system
63	that supports at least perl version 5.14.	94	that supports at least perl version 5.16.
64		95
65	=item Decodes and encodes BCD device elements	96	=item Decodes and encodes BCD device elements
66		97
67	PBCDEDIT can concisely decode and encode BCD device element contents. This	98	PBCDEDIT can concisely decode and encode BCD device element contents. This
68	is pretty unique, and offers a lot of potential that can't be realised	99	is pretty unique, and offers a lot of potential that can't be realised
…		…
75	sensitive data.	106	sensitive data.
76		107
77	=back	108	=back
78		109
79	The target audience for this program is professionals and tinkerers who	110	The target audience for this program is professionals and tinkerers who
80	are rewady to invest time into learning how it works. It is not an easy	111	are ready to invest time into learning how it works. It is not an easy
81	program to use and requires patience and a good understanding of BCD data	112	program to use and requires patience and a good understanding of BCD
82	stores.	113	stores.
83		114
84		115
85	=head1 SUBCOMMANDS	116	=head1 SUBCOMMANDS
86		117
87	PCBEDIT expects a subcommand as first argument that tells it what to	118	PBCDEDIT expects a subcommand as first argument that tells it what to
88	do. The following subcommands exist:	119	do. The following subcommands exist:
89		120
90	=over	121	=over
91		122
92	=item help	123	=item C<help>
93		124
94	Displays the whole manuale page (this document).	125	Displays the whole manual page (this document).
95		126
		127	=item C<version>
		128
		129	This outputs the PBCDEDIT version, the JSON schema version it uses and the
		130	full log of changes.
		131
96	=item export F<path>	132	=item C<export> F<path>
97		133
98	Reads a BCD data store and writes a JSON representation of it to standard	134	Reads a BCD data store and writes a JSON representation of it to standard
99	output.	135	output.
100		136
101	The format of the data is explained later in this document.	137	The format of the data is explained later in this document.
102		138
103	Example: read a BCD store, modify it wiht an extenral program, write it again.	139	Example: read a BCD store, modify it with an external program, write it
		140	again.
104		141
105	pbcdedit export BCD | modify-json-somehow | pbcdedit import BCD	142	pbcdedit export BCD | modify-json-somehow | pbcdedit import BCD
106		143
107	=item import F<path>	144	=item C<import> F<path>
108		145
109	The reverse of C<export>: Reads a JSON representation of a BCD data store	146	The reverse of C<export>: Reads a JSON representation of a BCD data store
110	from standard input, and creates or replaces the given BCD data store.	147	from standard input, and creates or replaces the given BCD data store.
111		148
112	=item edit F<path> instructions...	149	=item C<edit> F<path> I<instructions...>
113		150
114	Load a BCD data store, apply some instructions to it, and save it again.	151	Load a BCD data store, apply some instructions to it, and save it again.
115		152
116	See the section L<EDITING BCD DATA STORES>, below, for more info.	153	See the section L<EDITING BCD STORES>, below, for more info.
117		154
118	=item parse F<path> instructions...	155	=item C<parse> F<path> I<instructions...>
119		156
120	Same as C<edit>, above, except it doesn't save the data store again. Can	157	Same as C<edit>, above, except it doesn't save the data store again. Can
121	be useful to extract some data from it.	158	be useful to extract some data from it.
122		159
123	=item lsblk	160	=item C<lsblk> [C<--json>]
124		161
125	On a GNU/Linux system, you can get a list of partition device descriptors	162	On a GNU/Linux system, you can get a list of partition device descriptors
126	using this command - the external C<lsblk> command is required, as well as	163	using this command - the external C<lsblk> command is required, as well as
127	a mounted C</sys> file system.	164	a mounted C</sys> file system.
128		165
129	The output will be a list of all partitions in the system and C<partition>	166	The output will be a list of all partitions in the system and C<partition>
130	descriptors for GPT and both C<legacypartition> and C<partition>	167	descriptors for GPT and both C<legacypartition> and C<partition>
131	descritpors for MBR partitions.	168	descriptors for MBR partitions.
132		169
		170	With C<--json> it will print similar information as C<lsblk --json>, but
		171	with extra C<bcd_device> and C<bcd_legacy_device> attributes.
		172
		173	=item C<bcd-device> F<path>
		174
		175	Tries to find the BCD device element for the given device, which currently
		176	must be a a partition of some kind. Prints the C<partition=> descriptor as
		177	a result, or nothing. Exit status will be true on success, and false on
		178	failure.
		179
		180	Like C<lsblk>, above, this likely only works on GNU/Linux systems.
		181
		182	Example: print the partition descriptor of tghe partition with label DATA.
		183
		184	$ pbcdedit bcd-device /dev/disk/by-label/DATA
		185	partition=<null>,harddisk,mbr,47cbc08a,213579202560
		186
		187	=item C<bcd-legacy-device> F<path>
		188
		189	Like above, but uses a C<legacypartition> descriptor instead.
		190
133	=item objects [--json]	191	=item C<objects> [C<--json>]
134		192
135	Outputs two tables: a table listing all type aliases with their hex bcd	193	Outputs two tables: a table listing all type aliases with their hex BCD
136	element ID, and all object name aliases with their GUID and default type	194	element ID, and all object name aliases with their GUID and default type
137	(if any).	195	(if any).
138		196
139	With C<--json> it prints similar information as a JSON object, for easier parsing.	197	With C<--json> it prints similar information as a JSON object, for easier parsing.
140		198
141	=item elements [--json]	199	=item C<elements> [C<--json>]
142		200
143	Outputs a table of known element aliases with their hex ID and the format	201	Outputs a table of known element aliases with their hex ID and the format
144	type.	202	type.
145		203
146	With C<--json> it prints similar information as a JSON object, for easier parsing.	204	With C<--json> it prints similar information as a JSON object, for easier parsing.
147		205
148	=item export-regf F<path>	206	=item C<export-regf> F<path>
149		207
150	This has nothing to do with BCD data stores - it takes a registry hive	208	This has nothing to do with BCD stores, but simply exposes PCBEDIT's
		209	internal registry hive reader - it takes a registry hive file as argument
151	file as argument and outputs a JSON representation of it to standard	210	and outputs a JSON representation of it to standard output.
152	output.
153		211
154	Hive versions 1.2 till 1.6 are supported.	212	Hive versions 1.2 till 1.6 are supported.
155		213
156	=item import-regf F<path>	214	=item C<import-regf> F<path>
157		215
158	The reverse of C<export-regf>: reads a JSON representation of a registry	216	The reverse of C<export-regf>: reads a JSON representation of a registry
159	hive from standard input and creates or replaces the registry hive file given as	217	hive from standard input and creates or replaces the registry hive file
160	argument.	218	given as argument.
161		219
162	The written hive will always be in a slightly modified version 1.3	220	The written hive will always be in a slightly modified version 1.3
163	format. It's not the format windows would generate, but it should be	221	format. It's not the format windows would generate, but it should be
164	understood by any conformant hive reader.	222	understood by any conformant hive reader.
165		223
166	Note that the representation chosen by PBCDEDIT currently throws away	224	Note that the representation chosen by PBCDEDIT currently throws away
167	clasname data (often used for feeble attemtps at hiding stuff by	225	classname data (often used for feeble attempts at hiding stuff by
168	Microsoft) and security descriptors, so if you write anything other than	226	Microsoft) and security descriptors, so if you write anything other than
169	a BCD hive you will most likely destroy it.	227	a BCD hive you will most likely destroy it.
170		228
171	=back	229	=back
172		230
173		231
174	=head1 BCD DATA STORE REPRESENTATION FORMAT	232	=head1 BCD STORE REPRESENTATION FORMAT
175		233
176	A BCD data store is represented as a JSON object with one special key,	234	A BCD data store is represented as a JSON object with one special key,
177	C<meta>, and one key per BCD object. That is, each BCD object becomes	235	C<meta>, and one key per BCD object. That is, each BCD object becomes
178	one key-value pair in the object, and an additional key called C<meta>	236	one key-value pair in the object, and an additional key called C<meta>
179	contains meta information.	237	contains meta information.
…		…
215	}	273	}
216		274
217	=head2 Minimal BCD to boot windows	275	=head2 Minimal BCD to boot windows
218		276
219	Experimentally I found the following BCD is the minimum required to	277	Experimentally I found the following BCD is the minimum required to
220	successfully boot any post-XP version of Windows (suitable C<device> and	278	successfully boot any post-XP version of Windows (assuming suitable
221	C<osdevice> values, of course):	279	C<device> and C<osdevice> values, of course, and assuming a BIOS boot -
		280	for UEFI, you should use F<winload.efi> instead of F<winload.exe>):
222		281
223	{	282	{
224	"{bootmgr}" : {	283	"{bootmgr}" : {
225	"resumeobject" : "{45b547a7-8ca6-4417-9eb0-a257b61f35b4}"	284	"default" : "{45b547a7-8ca6-4417-9eb0-a257b61f35b4}"
226	},	285	},
227		286
228	"{45b547a7-8ca6-4417-9eb0-a257b61f35b1}" : {	287	"{45b547a7-8ca6-4417-9eb0-a257b61f35b1}" : {
229	"type" : "application::osloader",	288	"type" : "application::osloader",
230	"description" : "Windows Boot",	289	"description" : "Windows Boot",
…		…
242	=head2 The C<meta> key	301	=head2 The C<meta> key
243		302
244	The C<meta> key is not stored in the BCD data store but is used only	303	The C<meta> key is not stored in the BCD data store but is used only
245	by PBCDEDIT. It is always generated when exporting, and importing will	304	by PBCDEDIT. It is always generated when exporting, and importing will
246	be refused when it exists and the version stored inside doesn't store	305	be refused when it exists and the version stored inside doesn't store
247	the JSON schema version of PBCDEDIT. This ensures that differemt and	306	the JSON schema version of PBCDEDIT. This ensures that different and
248	incompatible versions of PBCDEDIT will not read and misinterüret each	307	incompatible versions of PBCDEDIT will not read and misinterpret each
249	others data.	308	others data.
250		309
251	=head2 The object keys	310	=head2 The object keys
252		311
253	Every other key is a BCD object. There is usually a BCD object for the	312	Every other key is a BCD object. There is usually a BCD object for the
254	boot manager, one for every boot option and a few others that store common	313	boot manager, one for every boot option and a few others that store common
255	settings inherited by these.	314	settings inherited by these.
256		315
257	Each BCD object is represented by a GUID wrapped in curly braces. These	316	Each BCD object is represented by a GUID wrapped in curly braces. These
258	are usually random GUIDs used only to distinguish bCD objects from each	317	are usually random GUIDs used only to distinguish BCD objects from each
259	other. When adding a new boot option, you can simply generate a new GUID.	318	other. When adding a new boot option, you can simply generate a new GUID.
260		319
261	Some of these GUIDs are fixed well known GUIDs which PBCDEDIT will decode	320	Some of these GUIDs are fixed well known GUIDs which PBCDEDIT will decode
262	into human-readable strings such as C<{globalsettings}>, which is the same	321	into human-readable strings such as C<{globalsettings}>, which is the same
263	as C<{7ea2e1ac-2e61-4728-aaa3-896d9d0a9f0e}>.	322	as C<{7ea2e1ac-2e61-4728-aaa3-896d9d0a9f0e}>.
…		…
297	get a list of all BCD elements known to PBCDEDIT by running F<pbcdedit	356	get a list of all BCD elements known to PBCDEDIT by running F<pbcdedit
298	elements>.	357	elements>.
299		358
300	What was said about duplicate keys mapping to the same object is true for	359	What was said about duplicate keys mapping to the same object is true for
301	elements as well, so, again, you should always use the canonical name,	360	elements as well, so, again, you should always use the canonical name,
302	whcih is the human radable alias, if known.	361	which is the human readable alias, if known.
303		362
304	=head3 BCD element types	363	=head3 BCD element types
305		364
306	Each BCD element has a type such as I<string> or I<boolean>. This type	365	Each BCD element has a type such as I<string> or I<boolean>. This type
307	determines how the value is interpreted, and most of them are pretty easy	366	determines how the value is interpreted, and most of them are pretty easy
…		…
319	"description" : "Windows 10",	378	"description" : "Windows 10",
320	"systemroot" : "\\Windows",	379	"systemroot" : "\\Windows",
321		380
322	=item boolean	381	=item boolean
323		382
324	Almost as simnple are booleans, which represent I<true>/I<false>,	383	Almost as simple are booleans, which represent I<true>/I<false>,
325	I<on>/I<off> and similar values. In the JSON form, true is represented	384	I<on>/I<off> and similar values. In the JSON form, true is represented
326	by the number C<1>, and false is represented by the number C<0>. Other	385	by the number C<1>, and false is represented by the number C<0>. Other
327	values will be accepted, but PBCDEDIT doesn't guarantee how these are	386	values will be accepted, but PBCDEDIT doesn't guarantee how these are
328	interpreted.	387	interpreted.
329		388
…		…
333		392
334	"displaybootmenu" : 0,	393	"displaybootmenu" : 0,
335		394
336	=item integer	395	=item integer
337		396
338	Again, very simple, this is a 64 bit integer. IT can be either specified	397	Again, very simple, this is a 64 bit integer. It can be either specified
339	as a decimal number, as a hex number (by prefixing it with C<0x>) or as a	398	as a decimal number, as a hex number (by prefixing it with C<0x>) or as a
340	binatry number (prefix C<0b>).	399	binary number (prefix C<0b>).
341		400
342	For example, the boot C<timeout> is an integer, specifying the automatic	401	For example, the boot C<timeout> is an integer, specifying the automatic
343	boot delay in seconds:	402	boot delay in seconds:
344		403
345	"timeout" : 30,	404	"timeout" : 30,
346		405
347	=item integer list	406	=item integer list
348		407
349	This is a list of 64 bit integers separated by whitespace. It is not used	408	This is a list of 64 bit integers separated by whitespace. It is not used
350	much, so here is a somewhat artificial an untested exanmple of using	409	much, so here is a somewhat artificial and untested example of using
351	C<customactions> to specify a certain custom, eh, action to be executed	410	C<customactions> to specify a certain custom, eh, action to be executed
352	when pressing C<F10> at boot:	411	when pressing C<F10> at boot:
353		412
354	"customactions" : "0x1000044000001 0x54000001",	413	"customactions" : "0x1000044000001 0x54000001",
355		414
356	=item guid	415	=item guid
357		416
358	This represents a single GUID value wrqapped in curly braces. It is used a	417	This represents a single GUID value wrapped in curly braces. It is used a
359	lot to refer from one BCD object to other one.	418	lot to refer from one BCD object to other one.
360		419
361	For example, The C<{bootmgr}> object might refer to a resume boot option	420	For example, The C<{bootmgr}> object might refer to a resume boot option
362	using C<resumeobject>:	421	using C<default>:
363		422
364	"resumeobject" : "{7ae02178-821d-11e7-8813-1c872c5f5ab0}",	423	"default" : "{7ae02178-821d-11e7-8813-1c872c5f5ab0}",
365		424
366	Human readable aliases are used and allowed.	425	Human readable aliases are used and allowed.
367		426
368	=item guid list	427	=item guid list
369		428
370	Similar to te guid type, this represents a list of such GUIDs, separated	429	Similar to the GUID type, this represents a list of such GUIDs, separated
371	by whitespace from each other.	430	by whitespace from each other.
372		431
373	For example, many BCD objects can I<inherit> elements from other BCD	432	For example, many BCD objects can I<inherit> elements from other BCD
374	objects by specifying the GUIDs of those other objects ina GUID list	433	objects by specifying the GUIDs of those other objects in a GUID list
375	called surprisingly called C<inherit>:	434	called surprisingly called C<inherit>:
376		435
377	"inherit" : "{dbgsettings} {emssettings} {badmemory}",	436	"inherit" : "{dbgsettings} {emssettings} {badmemory}",
378		437
379	This example also shows how human readable aliases can be used.	438	This example also shows how human readable aliases can be used.
…		…
383	This type is why I write I<most> are easy to explain earlier: This type	442	This type is why I write I<most> are easy to explain earlier: This type
384	is the pinnacle of Microsoft-typical hacks layered on top of other	443	is the pinnacle of Microsoft-typical hacks layered on top of other
385	hacks. Understanding this type took more time than writing all the rest of	444	hacks. Understanding this type took more time than writing all the rest of
386	PBCDEDIT, and because it is so complex, this type has its own subsection	445	PBCDEDIT, and because it is so complex, this type has its own subsection
387	below.	446	below.
		447
388	=back	448	=back
389		449
390	=head4 The BCD "device" element type	450	=head3 The BCD "device" element type
391		451
392	Device elements specify, well, devices. They are used for such diverse	452	Device elements specify, well, devices. They are used for such diverse
393	purposes such as finding a TFTP network boot imagem serial ports or VMBUS	453	purposes such as finding a TFTP network boot image, serial ports or VMBUS
394	devices, but most commonly they are used to specify the disk (harddisk,	454	devices, but most commonly they are used to specify the disk (harddisk,
395	cdrom ramdisk, vhd...) to boot from.	455	cdrom, ramdisk, vhd...) to boot from.
396		456
397	The device element is kind of a mini-language in its own which is much	457	The device element is kind of a mini-language in its own which is much
398	more versatile then the limited windows interface to it - BCDEDIT -	458	more versatile then the limited windows interface to it - BCDEDIT -
399	reveals.	459	reveals.
400		460
…		…
403	element, so almost everything known about it had to be researched first	463	element, so almost everything known about it had to be researched first
404	in the process of writing this script, and consequently, support for BCD	464	in the process of writing this script, and consequently, support for BCD
405	device elements is partial only.	465	device elements is partial only.
406		466
407	On the other hand, the expressive power of PBCDEDIT in specifying devices	467	On the other hand, the expressive power of PBCDEDIT in specifying devices
408	is much bigger than BCDEDIT and therefore more cna be don with it. The	468	is much greater than BCDEDIT and therefore more can be done with it. The
409	downside is that BCD device elements are much more complicated than what	469	downside is that BCD device elements are much more complicated than what
410	you might think from reading the BCDEDIT documentation.	470	you might think from reading the BCDEDIT documentation.
411		471
412	In other words, simple things are complicated, and complicated things are	472	In other words, simple things are complicated, and complicated things are
413	possible.	473	possible.
414		474
415	Anyway, the general syntax of device elements is an optional GUID,	475	Anyway, the general syntax of device elements is an optional GUID,
416	followed by a device type, optionally followed by hexdecimal flags in	476	followed by a device type, optionally followed by hexadecimal flags in
417	angle brackets, optionally followed by C<=> and a comma-separated list of	477	angle brackets, optionally followed by C<=> and a comma-separated list of
418	arguments, some of which can be (and often are) in turn devices again.	478	arguments, some of which can be (and often are) in turn devices again.
419		479
420	[{GUID}]type[<flags>][=arg,arg...]	480	[{GUID}]type[<flags>][=arg,arg...]
421		481
…		…
447	The types understood and used by PBCDEDIT are as follows (keep in mind	507	The types understood and used by PBCDEDIT are as follows (keep in mind
448	that not of all the following is necessarily supported in PBCDEDIT):	508	that not of all the following is necessarily supported in PBCDEDIT):
449		509
450	=over	510	=over
451		511
452	=item binary=hex...	512	=item C<binary=>I<hex...>
453		513
454	This type isn't actually a real BCD element type, but a fallback for those	514	This type isn't actually a real BCD element type, but a fallback for those
455	cases where PBCDEDIT can't perfectly decode a device element (except for	515	cases where PBCDEDIT can't perfectly decode a device element (except for
456	the leading GUID, which it can always decode). In such cases, it will	516	the leading GUID, which it can always decode). In such cases, it will
457	convert the device into this type with a hexdump of the element data.	517	convert the device into this type with a hexdump of the element data.
458		518
459	=item null	519	=item C<null>
460		520
461	This is another special type - sometimes, a device all zero-filled, which	521	This is another special type - sometimes, a device is all zero-filled,
462	is not valid. This can mark the absence of a device or something PBCDEDIT	522	which is not valid. This can mark the absence of a device or something
463	does not understand, so it decodes it into this special "all zero" type	523	PBCDEDIT does not understand, so it decodes it into this special "all
464	called C<null>.	524	zero" type called C<null>.
465		525
466	It's most commonly found in devices that can use an optional parent	526	It's most commonly found in devices that can use an optional parent
467	device, when no parent device is used.	527	device, when no parent device is used.
468		528
469	=item boot	529	=item C<boot>
470		530
471	Another type without parameters, this refers to the device that was booted	531	Another type without parameters, this refers to the device that was booted
472	from (nowadays typically the EFI system partition).	532	from (nowadays typically the EFI system partition).
473		533
474	=item vmbus=interfacetype,interfaceinstance	534	=item C<vmbus=>I<interfacetype>,I<interfaceinstance>
475		535
476	This specifies a VMBUS device with the given interface type and interface	536	This specifies a VMBUS device with the given interface type and interface
477	instance, both of which are "naked" (no curly braces) GUIDs.	537	instance, both of which are "naked" (no curly braces) GUIDs.
478		538
479	Made-up example (couldn't find a single example on the web):	539	Made-up example (couldn't find a single example on the web):
480		540
481	vmbus=c376c1c3-d276-48d2-90a9-c04748072c60,12345678-a234-b234-c234-d2345678abcd	541	vmbus=c376c1c3-d276-48d2-90a9-c04748072c60,12345678-a234-b234-c234-d2345678abcd
482		542
483	=item partition=<parent>,devicetype,partitiontype,diskid,partitionid	543	=item C<partition=><I<parent>>,I<devicetype>,I<partitiontype>,I<diskid>,I<partitionid>
484		544
485	This designates a specific partition on a block device. C<< <parent>	545	This designates a specific partition on a block device. I<parent> is an
486	>> is an optional parent device on which to search on, and is often	546	optional parent device on which to search on, and is often C<null>. Note
487	C<null>. Note that the anfgle brackets are part of the syntax.	547	that the angle brackets around I<parent> are part of the syntax.
488		548
489	C<devicetypes> is one of C<harddisk>, C<floppy>, C<cdrom>, C<ramdisk>,	549	I<devicetypes> is one of C<harddisk>, C<floppy>, C<cdrom>, C<ramdisk>,
490	C<file> or C<vhd>, where the first three should be self-explaining,	550	C<file> or C<vhd>, where the first three should be self-explaining,
491	C<file> is usually used to locate a device by finding a magic file, and	551	C<file> is usually used to locate a file to be used as a disk image,
492	C<vhd> is used for virtual harddisks - F<.vhd> and F<-vhdx> files.	552	and C<vhd> is used to treat files as virtual harddisks, i.e. F<vhd> and
		553	F<vhdx> files.
493		554
494	The C<partitiontype> is either C<mbr>, C<gpt> or C<raw>, the latter being	555	The I<partitiontype> is either C<mbr>, C<gpt> or C<raw>, the latter being
495	used for devices without partitions, such as cdroms, where the "partition"	556	used for devices without partitions, such as cdroms, where the "partition"
496	is usually the whole device.	557	is usually the whole device.
497		558
498	The C<diskid> identifies the disk or device using a unique signature, and	559	The I<diskid> identifies the disk or device using a unique signature, and
499	the same is true for the C<partitionid>. How these are interpreted depends	560	the same is true for the I<partitionid>. How these are interpreted depends
500	on the C<partitiontype>:	561	on the I<partitiontype>:
501		562
502	=over	563	=over
503		564
504	=item mbr	565	=item C<mbr>
505		566
506	The C<diskid> is the 32 bit disk signature stored at offset 0x1b8 in the	567	The C<diskid> is the 32 bit disk signature stored at offset 0x1b8 in the
507	MBR, interpreted as a 32 bit unsigned little endian integer and written as	568	MBR, interpreted as a 32 bit unsigned little endian integer and written as
508	hex number. That is, the bytes C<01 02 03 04> would become C<04030201>.	569	hex number. That is, the bytes C<01 02 03 04> would become C<04030201>.
509		570
510	Diskpart (using the C<DETAIL> command) and the C<lsblk> comamnd typically	571	Diskpart (using the C<DETAIL> command) and the C<lsblk> command typically
511	found on GNU/Linux systems (using e.g. C<lsblk -o NAME,PARTUUID>) can	572	found on GNU/Linux systems (using e.g. C<lsblk -o NAME,PARTUUID>) can
512	display the disk id.	573	display the I<diskid>.
513		574
514	The C<partitionid> is the byte offset(!) of the partition counting from	575	The I<partitionid> is the byte offset(!) of the partition counting from
515	the beginning of the MBR.	576	the beginning of the MBR.
516		577
517	Example, use the partition on the harddisk with C<diskid> C<47cbc08a>	578	Example, use the partition on the harddisk with I<diskid> C<47cbc08a>
518	starting at sector C<2048> (= 1048576 / 512).	579	starting at sector C<2048> (= 1048576 / 512).
519		580
520	partition=<null>,harddisk,mbr,47cbc08a,1048576	581	partition=<null>,harddisk,mbr,47cbc08a,1048576
521		582
522	=item gpt	583	=item C<gpt>
523		584
524	The C<diskid> is the disk UUID/disk identifier GUID from the partition	585	The I<diskid> is the disk GUID/disk identifier GUID from the partition
525	table (as displayed e.g. by C<gdisk>), and the C<partitionid> is the	586	table (as displayed e.g. by F<gdisk>), and the I<partitionid> is the
526	partition unique GUID (displayed using e.g. the C<gdisk> C<i> command).	587	partition unique GUID (displayed using e.g. the F<gdisk> F<i> command).
527		588
528	Example: use the partition C<76d39e5f-ad1b-407e-9c05-c81eb83b57dd> on GPT	589	Example: use the partition C<76d39e5f-ad1b-407e-9c05-c81eb83b57dd> on GPT
529	disk C<9742e468-9206-48a0-b4e4-c4e9745a356a>.	590	disk C<9742e468-9206-48a0-b4e4-c4e9745a356a>.
530		591
531	partition=<null>,harddisk,gpt,9742e468-9206-48a0-b4e4-c4e9745a356a,76d39e5f-ad1b-407e-9c05-c81eb83b57dd	592	partition=<null>,harddisk,gpt,9742e468-9206-48a0-b4e4-c4e9745a356a,76d39e5f-ad1b-407e-9c05-c81eb83b57dd
532		593
533	=item raw	594	=item C<raw>
534		595
535	Instead of diskid and partitionid, this type only accepts a decimal disk	596	Instead of I<diskid> and I<partitionid>, this type only accepts a decimal
536	number and signifies the whole disk. BCDEDIT cannot display the resulting	597	disk number and signifies the whole disk. BCDEDIT cannot display the
537	device, and I am doubtful whether it has a useful effect.	598	resulting device, and I am doubtful whether it has a useful effect.
538		599
539	=back	600	=back
540		601
541	=item legacypartition=<parent>,devicetype,partitiontype,diskid,partitionid	602	=item C<legacypartition=><I<parent>>,I<devicetype>,I<partitiontype>,I<diskid>,I<partitionid>
542		603
543	This is exactly the same as the C<partition> type, except for a tiny	604	This is exactly the same as the C<partition> type, except for a tiny
544	detail: instead of using the partition start offset, this type uses the	605	detail: instead of using the partition start offset, this type uses the
545	partition number for MBR disks. Behaviour other partition types should be	606	partition number for MBR disks. Behaviour other partition types should be
546	the same.	607	the same.
547		608
548	The partition number starts at C<1> and skips unused partition, so if	609	The partition number starts at C<1> and skips unused partition, so if
549	there are two primary partitions and another partition inside the extended	610	there are two primary partitions and another partition inside the extended
550	partition, the primary partitions are number C<1> and C<2> and the	611	partition, the primary partitions are number C<1> and C<2> and the
551	partition inside the extended partition is number C<3>, rwegardless of any	612	partition inside the extended partition is number C<3>, regardless of any
552	gaps.	613	gaps.
553		614
554	=item locate=<parent>,locatetype,locatearg	615	=item C<locate=><I<parent>>,I<locatetype>,I<locatearg>
555		616
556	This device description will make the bootloader search for a partition	617	This device description will make the bootloader search for a partition
557	with a given path.	618	with a given path.
558		619
559	The C<< <parent> >> device is the device to search on (angle brackets are	620	The I<parent> device is the device to search on (angle brackets are
560	still part of the syntax!) If it is C<< <null> >>, then C<locate> will	621	still part of the syntax!) If it is C<null>, then C<locate> will
561	search all disks it can find.	622	search all disks it can find.
562		623
563	C<locatetype> is either C<element> or C<path>, and merely distinguishes	624	I<locatetype> is either C<element> or C<path>, and merely distinguishes
564	between two different ways to specify the path to search for: C<element>	625	between two different ways to specify the path to search for: C<element>
565	uses an element ID (either as hex or as name) as C<locatearg> and C<path>	626	uses an element ID (either as hex or as name) as I<locatearg> and C<path>
566	uses a relative path as C<locatearg>.	627	uses a relative path as I<locatearg>.
567		628
568	Example: find any partition which has the C<magicfile.xxx> path in the	629	Example: find any partition which has the F<magicfile.xxx> path in the
569	root.	630	root.
570		631
571	locate=<null>,path,\magicfile.xxx	632	locate=<null>,path,\magicfile.xxx
572		633
573	Example: find any partition which has the path specified in the	634	Example: find any partition which has the path specified in the
574	C<systemroot> element (typically C<\Windows>).	635	C<systemroot> element (typically F<\Windows>).
575		636
576	locate=<null>,element,systemroot	637	locate=<null>,element,systemroot
577		638
578	=item block=devicetype,args...	639	=item C<block=>I<devicetype>,I<args...>
579		640
580	Last not least, the most complex type, C<block>, which... specifies block	641	Last not least, the most complex type, C<block>, which... specifies block
581	devices (which could be inside a F<vhdx> file for example).	642	devices (which could be inside a F<vhdx> file for example).
582		643
583	C<devicetypes> is one of C<harddisk>, C<floppy>, C<cdrom>, C<ramdisk>,	644	I<devicetypes> is one of C<harddisk>, C<floppy>, C<cdrom>, C<ramdisk>,
584	C<file> or C<vhd> - the same as for C<partiion=>.	645	C<file> or C<vhd> - the same as for C<partition=>.
585		646
586	The remaining arguments change depending on the C<devicetype>:	647	The remaining arguments change depending on the I<devicetype>:
587		648
588	=over	649	=over
589		650
590	=item block=file,<parent>,path	651	=item C<block=file>,<I<parent>>,I<path>
591		652
592	Interprets the C<< <parent> >> device (typically a partition) as a	653	Interprets the I<parent> device (typically a partition) as a
593	filesystem and specifies a file path inside.	654	filesystem and specifies a file path inside.
594		655
595	=item block=vhd,<parent>	656	=item C<block=vhd>,<I<parent>>
596		657
597	Pretty much just changes the interpretation of C<< <parent> >>, which is	658	Pretty much just changes the interpretation of I<parent>, which is
598	usually a disk image (C<block=file,...)>) to be a F<vhd> or F<vhdx> file.	659	usually a disk image (C<block=file,...)>) to be a F<vhd> or F<vhdx> file.
599		660
600	=item block=ramdisk,<parent>,base,size,offset,path	661	=item C<block=ramdisk>,<I<parent>>,I<base>,I<size>,I<offset>,I<path>
601		662
602	Interprets the C<< <parent> >> device as RAM disk, using the (decimal)	663	Interprets the I<parent> device as RAM disk, using the (decimal)
603	base address, byte size and byte offset inside a file specified by	664	base address, byte size and byte offset inside a file specified by
604	C<path>. The numbers are usually all C<0> because they cna be extracted	665	I<path>. The numbers are usually all C<0> because they can be extracted
605	from the RAM disk image or other parameters.	666	from the RAM disk image or other parameters.
606		667
607	This is most commonly used to boot C<wim> images.	668	This is most commonly used to boot C<wim> images.
608		669
609	=item block=floppy,drivenum	670	=item C<block=floppy>,I<drivenum>
610		671
611	Refers to a removable drive identified by a number. BCDEDIT cannot display	672	Refers to a removable drive identified by a number. BCDEDIT cannot display
612	the resultinfg device, and it is not clear what effect it will have.	673	the resulting device, and it is not clear what effect it will have.
613		674
614	=item block=cdrom,drivenum	675	=item C<block=cdrom>,I<drivenum>
615		676
616	Pretty much the same as C<floppy> but for CD-ROMs.	677	Pretty much the same as C<floppy> but for CD-ROMs.
617		678
618	=item anything else	679	=item anything else
619		680
620	Probably not yet implemented. Tell me of your needs...	681	Probably not yet implemented. Tell me of your needs...
621		682
622	=back	683	=back
623		684
624	=back5 Examples	685	=head4 Examples
625		686
626	This concludes the syntax overview for device elements, but probably	687	This concludes the syntax overview for device elements, but probably
627	leaves many questions open. I can't help with most of them, as I also ave	688	leaves many questions open. I can't help with most of them, as I also have
628	many questions, but I can walk you through some actual examples using mroe	689	many questions, but I can walk you through some actual examples using more
629	complex aspects.	690	complex aspects.
630		691
631	=item locate=<block=vhd,<block=file,<locate=<null>,path,\disk.vhdx>,\disk.vhdx>>,element,path	692	=item C<< locate=<block=vhd,<block=file,<locate=<null>,path,\disk.vhdx>,\disk.vhdx>>,element,path >>
632		693
633	Just like with C declarations, you best treat device descriptors as	694	Just like with C declarations, you best treat device descriptors as
634	instructions to find your device and work your way from the inside out:	695	instructions to find your device and work your way from the inside out:
635		696
636	locate=<null>,path,\disk.vhdx	697	locate=<null>,path,\disk.vhdx
…		…
643	Next, this takes the device locate has found and finds a file called	704	Next, this takes the device locate has found and finds a file called
644	F<\disk.vhdx> on it. This is the same file locate was using, but that is	705	F<\disk.vhdx> on it. This is the same file locate was using, but that is
645	only because we find the device using the same path as finding the disk	706	only because we find the device using the same path as finding the disk
646	image, so this is purely incidental, although quite common.	707	image, so this is purely incidental, although quite common.
647		708
648	Bext, this file will be opened as a virtual disk:	709	Next, this file will be opened as a virtual disk:
649		710
650	block=vhd,<see above>	711	block=vhd,<see above>
651		712
652	And finally, inside this disk, another C<locate> will look for a partition	713	And finally, inside this disk, another C<locate> will look for a partition
653	with a path as specified in the C<path> element, which most likely will be	714	with a path as specified in the C<path> element, which most likely will be
…		…
656	locate=<see above>,element,path	717	locate=<see above>,element,path
657		718
658	As a result, this will boot the first Windows it finds on the first	719	As a result, this will boot the first Windows it finds on the first
659	F<disk.vhdx> disk image it can find anywhere.	720	F<disk.vhdx> disk image it can find anywhere.
660		721
661	=item locate=<block=vhd,<block=file,<partition=<null>,harddisk,mbr,47cbc08a,242643632128>,\win10.vhdx>>,element,path	722	=item C<< locate=<block=vhd,<block=file,<partition=<null>,harddisk,mbr,47cbc08a,242643632128>,\win10.vhdx>>,element,path >>
662		723
663	Pretty much the same as the previous case, but witzh a bit of variance. First, look for a specific partition on	724	Pretty much the same as the previous case, but with a bit of
664	an MBR-partitioned disk:	725	variance. First, look for a specific partition on an MBR-partitioned disk:
665		726
666	partition=<null>,harddisk,mbr,47cbc08a,242643632128	727	partition=<null>,harddisk,mbr,47cbc08a,242643632128
667		728
668	Then open the file F<\win10.vhdx> on that partition:	729	Then open the file F<\win10.vhdx> on that partition:
669		730
…		…
675		736
676	And again the windows loader (or whatever is in C<path>) will be searched:	737	And again the windows loader (or whatever is in C<path>) will be searched:
677		738
678	locate=<see above>,element,path	739	locate=<see above>,element,path
679		740
680	=item {b097d2b2-bc00-11e9-8a9a-525400123456}block<1>=ramdisk,<partition=<null>,harddisk,mbr,47cbc08a,242643632128>,0,0,0,\boot.wim	741	=item C<< {b097d2b2-bc00-11e9-8a9a-525400123456}block<1>=ramdisk,<partition=<null>,harddisk,mbr,47cbc08a,242643632128>,0,0,0,\boot.wim >>
681		742
682	This is quite different. First, it starts with a GUID. This GUID belongs	743	This is quite different. First, it starts with a GUID. This GUID belongs
683	to a BCD object of type C<device>, which has additional parameters:	744	to a BCD object of type C<device>, which has additional parameters:
684		745
685	"{b097d2b2-bc00-11e9-8a9a-525400123456}" : {	746	"{b097d2b2-bc00-11e9-8a9a-525400123456}" : {
…		…
688	"ramdisksdidevice" : "partition=<null>,harddisk,mbr,47cbc08a,1048576",	749	"ramdisksdidevice" : "partition=<null>,harddisk,mbr,47cbc08a,1048576",
689	"ramdisksdipath" : "\boot.sdi"	750	"ramdisksdipath" : "\boot.sdi"
690	},	751	},
691		752
692	I will not go into many details, but this specifies a (presumably empty)	753	I will not go into many details, but this specifies a (presumably empty)
693	template ramdisk image (F<\boot.sdi>) that is used to initiaolize the	754	template ramdisk image (F<\boot.sdi>) that is used to initialize the
694	ramdisk. The F<\boot.wim> file is then extracted into it. As you cna also	755	ramdisk. The F<\boot.wim> file is then extracted into it. As you can also
695	see, this F<.sdi> file resides on a different C<partition>.	756	see, this F<.sdi> file resides on a different C<partition>.
696		757
697	Continuitn, as always, form the inside out, first this device descriptor	758	Continuing, as always, from the inside out, first this device descriptor
698	finds a specific partition:	759	finds a specific partition:
699		760
700	partition=<null>,harddisk,mbr,47cbc08a,242643632128	761	partition=<null>,harddisk,mbr,47cbc08a,242643632128
701		762
702	And then specifies a C<ramdisk> image on this partition:	763	And then specifies a C<ramdisk> image on this partition:
…		…
707	seems to be always there on this kind of entry.	768	seems to be always there on this kind of entry.
708		769
709	If you have some good examples to add here, feel free to mail me.	770	If you have some good examples to add here, feel free to mail me.
710		771
711		772
712	=head1 EDITING BCD DATA STORES	773	=head1 EDITING BCD STORES
713		774
714	The C<edit> and C<parse> subcommands allow you to read a BCD data store	775	The C<edit> and C<parse> subcommands allow you to read a BCD data store
715	and modify it or extract data from it. This is done by exyecuting a series	776	and modify it or extract data from it. This is done by executing a series
716	of "editing instructions" which are explained here.	777	of "editing instructions" which are explained here.
717		778
718	=over	779	=over
719		780
720	=item get I<object> I<element>	781	=item C<get> I<object> I<element>
721		782
722	Reads the BCD element I<element> from the BCD object I<object> and writes	783	Reads the BCD element I<element> from the BCD object I<object> and writes
723	it to standard output, followed by a newline. The I<object> can be a GUID	784	it to standard output, followed by a newline. The I<object> can be a GUID
724	or a human-readable alias, or the special string C<{default}>, which will	785	or a human-readable alias, or the special string C<{default}>, which will
725	refer to the default BCD object.	786	refer to the default BCD object.
726		787
727	Example: find description of the default BCD object.	788	Example: find description of the default BCD object.
728		789
729	pbcdedit parse BCD get "{default}" description	790	pbcdedit parse BCD get "{default}" description
730		791
731	=item set I<object> I<element> I<value>	792	=item C<set> I<object> I<element> I<value>
732		793
733	Similar to C<get>, but sets the element to the given I<value> instead.	794	Similar to C<get>, but sets the element to the given I<value> instead.
734		795
735	Example: change bootmgr default too	796	Example: change the bootmgr default too
736	C<{b097d2ad-bc00-11e9-8a9a-525400123456}>:	797	C<{b097d2ad-bc00-11e9-8a9a-525400123456}>:
737		798
738	pbcdedit edit BCD set "{bootmgr}" resumeobject "{b097d2ad-bc00-11e9-8a9a-525400123456}"	799	pbcdedit edit BCD set "{bootmgr}" default "{b097d2ad-bc00-11e9-8a9a-525400123456}"
739		800
740	=item eval I<perlcode>	801	=item C<eval> I<perlcode>
741		802
742	This takes the next argument, interprets it as Perl code and	803	This takes the next argument, interprets it as Perl code and
743	evaluates it. This allows you to do more complicated modifications or	804	evaluates it. This allows you to do more complicated modifications or
744	extractions.	805	extractions.
745		806
…		…
764	The example given for C<get>, above, could be expressed like this with	825	The example given for C<get>, above, could be expressed like this with
765	C<eval>:	826	C<eval>:
766		827
767	pbcdedit edit BCD eval 'say $BCD->{$DEFAULT}{description}'	828	pbcdedit edit BCD eval 'say $BCD->{$DEFAULT}{description}'
768		829
769	The example given for C<set> could be expresed like this:	830	The example given for C<set> could be expressed like this:
770		831
771	pbcdedit edit BCD eval '$BCD->{$DEFAULT}{resumeobject} = "{b097d2ad-bc00-11e9-8a9a-525400123456}"'	832	pbcdedit edit BCD eval '$BCD->{"{bootmgr}"{default} = "{b097d2ad-bc00-11e9-8a9a-525400123456}"'
772		833
773	=item do I<path>	834	=item C<do> I<path>
774		835
775	Similar to C<eval>, above, but instead of using the argument as perl code,	836	Similar to C<eval>, above, but instead of using the argument as perl code,
776	it loads the perl code from the given file and executes it. This makes it	837	it loads the perl code from the given file and executes it. This makes it
777	easier to write more complicated or larger programs.	838	easier to write more complicated or larger programs.
778		839
779	=back	840	=back
780		841
		842
781	=head1 SEE ALSO	843	=head1 SEE ALSO
782		844
783	For ideas on what you can do, and some introductory material, try	845	For ideas on what you can do with BCD stores in
		846	general, and some introductory material, try
784	L<http://www.mistyprojects.co.uk/documents/BCDEdit/index.html>.	847	L<http://www.mistyprojects.co.uk/documents/BCDEdit/index.html>.
785		848
786	For good reference on BCD objects and elements, see Geoff Chappels pages	849	For good reference on which BCD objects and
		850	elements exist, see Geoff Chappell's pages at
787	at L<http://www.geoffchappell.com/notes/windows/boot/bcd/index.htm>.	851	L<http://www.geoffchappell.com/notes/windows/boot/bcd/index.htm>.
788		852
789	=head1 AUTHOR	853	=head1 AUTHOR
790		854
791	Written by Marc A. Lehmann <pbcdedit@schmorp.de>.	855	Written by Marc A. Lehmann L<pbcdedit@schmorp.de>.
792		856
793	=head1 REPORTING BUGS	857	=head1 REPORTING BUGS
794		858
795	Bugs can be reported dorectly tt he author at L<pcbedit@schmorp.de>.	859	Bugs can be reported directly the author at L<pcbedit@schmorp.de>.
796		860
797	=head1 BUGS AND SHORTCOMINGS	861	=head1 BUGS AND SHORTCOMINGS
798		862
799	This should be a module. Of a series of modules, even.	863	This should be a module. Of a series of modules, even.
800		864
801	Registry code should preserve classname and security descriptor data, and	865	Registry code should preserve classname and security descriptor data, and
802	whatever else is necessary to read and write any registry hive file.	866	whatever else is necessary to read and write any registry hive file.
803		867
804	I am also not happy with device descriptors being strings rather than a	868	I am also not happy with device descriptors being strings rather than a
805	data structure, but strings are probably better for command line usage. In	869	data structure, but strings are probably better for command line usage. In
806	any case,. device descriptors could be converted by simply "splitting" at	870	any case, device descriptors could be converted by simply "splitting" at
807	"=" and "," into an array reference, recursively.	871	"=" and "," into an array reference, recursively.
808		872
809	=head1 HOMEPAGE	873	=head1 HOMEPAGE
810		874
811	Original versions of this program can be found at	875	Original versions of this program can be found at
…		…
818	free to change and redistribute it. There is NO WARRANTY, to the extent	882	free to change and redistribute it. There is NO WARRANTY, to the extent
819	permitted by law.	883	permitted by law.
820		884
821	=cut	885	=cut
822		886
823	BEGIN { require "common/sense.pm"; common::sense->import } # common sense is optional, but recommended	887	# common sense is optional, but recommended
		888	BEGIN { eval { require "common/sense.pm"; } && common::sense->import }
824		889
825	use Data::Dump;	890	no warnings 'portable'; # avoid 32 bit integer warnings
		891
826	use Encode ();	892	use Encode ();
827	use List::Util ();	893	use List::Util ();
828	use IO::Handle ();	894	use IO::Handle ();
829	use Time::HiRes ();	895	use Time::HiRes ();
830		896
…		…
853	or die "$path: short read\n";	919	or die "$path: short read\n";
854		920
855	$buf	921	$buf
856	}	922	}
857		923
858	# sources and resources used for this:	924	# sources and resources used for writing pbcdedit
		925	#
859	# registry:	926	# registry:
860	# https://github.com/msuhanov/regf/blob/master/Windows%20registry%20file%20format%20specification.md	927	# https://github.com/msuhanov/regf/blob/master/Windows%20registry%20file%20format%20specification.md
861	# http://amnesia.gtisc.gatech.edu/~moyix/suzibandit.ltd.uk/MSc/	928	# http://amnesia.gtisc.gatech.edu/~moyix/suzibandit.ltd.uk/MSc/
862	# bcd:	929	# bcd:
863	# http://www.geoffchappell.com/notes/windows/boot/bcd/index.htm	930	# http://www.geoffchappell.com/notes/windows/boot/bcd/index.htm
…		…
1351	sub BCDE_FORMAT_GUID_LIST () { 0x04000000 }	1418	sub BCDE_FORMAT_GUID_LIST () { 0x04000000 }
1352	sub BCDE_FORMAT_INTEGER () { 0x05000000 }	1419	sub BCDE_FORMAT_INTEGER () { 0x05000000 }
1353	sub BCDE_FORMAT_BOOLEAN () { 0x06000000 }	1420	sub BCDE_FORMAT_BOOLEAN () { 0x06000000 }
1354	sub BCDE_FORMAT_INTEGER_LIST () { 0x07000000 }	1421	sub BCDE_FORMAT_INTEGER_LIST () { 0x07000000 }
1355		1422
1356	sub dec_device;
1357	sub enc_device;
1358
1359	sub enc_integer($) {	1423	sub enc_integer($) {
1360	no warnings 'portable'; # ugh
1361	my $value = shift;	1424	my $value = shift;
1362	$value = oct $value if $value =~ /^0[bBxX]/;	1425	$value = oct $value if $value =~ /^0[bBxX]/;
1363	unpack "H*", pack "Q<", $value	1426	unpack "H*", pack "Q<", $value
1364	}	1427	}
		1428
		1429	sub enc_device($$);
		1430	sub dec_device($$);
1365		1431
1366	our %bcde_dec = (	1432	our %bcde_dec = (
1367	BCDE_FORMAT_DEVICE , \&dec_device,	1433	BCDE_FORMAT_DEVICE , \&dec_device,
1368	# # for round-trip verification	1434	# # for round-trip verification
1369	# BCDE_FORMAT_DEVICE , sub {	1435	# BCDE_FORMAT_DEVICE , sub {
…		…
1379	BCDE_FORMAT_BOOLEAN , sub { shift eq "00" ? 0 : 1 },	1445	BCDE_FORMAT_BOOLEAN , sub { shift eq "00" ? 0 : 1 },
1380	BCDE_FORMAT_INTEGER_LIST, sub { join " ", unpack "Q*", pack "H*", shift }, # not sure if this cna be 4 bytes	1446	BCDE_FORMAT_INTEGER_LIST, sub { join " ", unpack "Q*", pack "H*", shift }, # not sure if this cna be 4 bytes
1381	);	1447	);
1382		1448
1383	our %bcde_enc = (	1449	our %bcde_enc = (
1384	BCDE_FORMAT_DEVICE , sub { binary => enc_device shift },	1450	BCDE_FORMAT_DEVICE , sub { binary => enc_device $_[0], $_[1] },
1385	BCDE_FORMAT_STRING , sub { sz => shift },	1451	BCDE_FORMAT_STRING , sub { sz => shift },
1386	BCDE_FORMAT_GUID , sub { sz => "{" . (dec_guid enc_wguid shift) . "}" },	1452	BCDE_FORMAT_GUID , sub { sz => "{" . (dec_guid enc_wguid shift) . "}" },
1387	BCDE_FORMAT_GUID_LIST , sub { multi_sz => [map "{" . (dec_guid enc_wguid $_) . "}", split /\s+/, shift ] },	1453	BCDE_FORMAT_GUID_LIST , sub { multi_sz => [map "{" . (dec_guid enc_wguid $_) . "}", split /\s+/, shift ] },
1388	BCDE_FORMAT_INTEGER , sub { binary => enc_integer shift },	1454	BCDE_FORMAT_INTEGER , sub { binary => enc_integer shift },
1389	BCDE_FORMAT_BOOLEAN , sub { binary => shift ? "01" : "00" },	1455	BCDE_FORMAT_BOOLEAN , sub { binary => shift ? "01" : "00" },
1390	BCDE_FORMAT_INTEGER_LIST, sub { binary => join "", map enc_integer $_, split /\s+/, shift },	1456	BCDE_FORMAT_INTEGER_LIST, sub { binary => join "", map enc_integer $_, split /\s+/, shift },
1391	);	1457	);
1392		1458
1393	# BCD Elements	1459	# BCD Elements
1394	our %bcde = (	1460	our %bcde_byclass = (
		1461	any => {
1395	0x11000001 => 'device',	1462	0x11000001 => 'device',
1396	0x12000002 => 'path',	1463	0x12000002 => 'path',
1397	0x12000004 => 'description',	1464	0x12000004 => 'description',
1398	0x12000005 => 'locale',	1465	0x12000005 => 'locale',
1399	0x14000006 => 'inherit',	1466	0x14000006 => 'inherit',
1400	0x15000007 => 'truncatememory',	1467	0x15000007 => 'truncatememory',
1401	0x14000008 => 'recoverysequence',	1468	0x14000008 => 'recoverysequence',
1402	0x16000009 => 'recoveryenabled',	1469	0x16000009 => 'recoveryenabled',
1403	0x1700000a => 'badmemorylist',	1470	0x1700000a => 'badmemorylist',
1404	0x1600000b => 'badmemoryaccess',	1471	0x1600000b => 'badmemoryaccess',
1405	0x1500000c => 'firstmegabytepolicy',	1472	0x1500000c => 'firstmegabytepolicy',
1406	0x1500000d => 'relocatephysical',	1473	0x1500000d => 'relocatephysical',
1407	0x1500000e => 'avoidlowmemory',	1474	0x1500000e => 'avoidlowmemory',
1408	0x1600000f => 'traditionalkseg',	1475	0x1600000f => 'traditionalkseg',
1409	0x16000010 => 'bootdebug',	1476	0x16000010 => 'bootdebug',
1410	0x15000011 => 'debugtype',	1477	0x15000011 => 'debugtype',
1411	0x15000012 => 'debugaddress',	1478	0x15000012 => 'debugaddress',
1412	0x15000013 => 'debugport',	1479	0x15000013 => 'debugport',
1413	0x15000014 => 'baudrate',	1480	0x15000014 => 'baudrate',
1414	0x15000015 => 'channel',	1481	0x15000015 => 'channel',
1415	0x12000016 => 'targetname',	1482	0x12000016 => 'targetname',
1416	0x16000017 => 'noumex',	1483	0x16000017 => 'noumex',
1417	0x15000018 => 'debugstart',	1484	0x15000018 => 'debugstart',
1418	0x12000019 => 'busparams',	1485	0x12000019 => 'busparams',
1419	0x1500001a => 'hostip',	1486	0x1500001a => 'hostip',
1420	0x1500001b => 'port',	1487	0x1500001b => 'port',
1421	0x1600001c => 'dhcp',	1488	0x1600001c => 'dhcp',
1422	0x1200001d => 'key',	1489	0x1200001d => 'key',
1423	0x1600001e => 'vm',	1490	0x1600001e => 'vm',
1424	0x16000020 => 'bootems',	1491	0x16000020 => 'bootems',
1425	0x15000022 => 'emsport',	1492	0x15000022 => 'emsport',
1426	0x15000023 => 'emsbaudrate',	1493	0x15000023 => 'emsbaudrate',
1427	0x12000030 => 'loadoptions',	1494	0x12000030 => 'loadoptions',
1428	0x16000040 => 'advancedoptions',	1495	0x16000040 => 'advancedoptions',
1429	0x16000041 => 'optionsedit',	1496	0x16000041 => 'optionsedit',
1430	0x15000042 => 'keyringaddress',	1497	0x15000042 => 'keyringaddress',
1431	0x11000043 => 'bootstatdevice',	1498	0x11000043 => 'bootstatdevice',
1432	0x12000044 => 'bootstatfilepath',	1499	0x12000044 => 'bootstatfilepath',
1433	0x16000045 => 'preservebootstat',	1500	0x16000045 => 'preservebootstat',
1434	0x16000046 => 'graphicsmodedisabled',	1501	0x16000046 => 'graphicsmodedisabled',
1435	0x15000047 => 'configaccesspolicy',	1502	0x15000047 => 'configaccesspolicy',
1436	0x16000048 => 'nointegritychecks',	1503	0x16000048 => 'nointegritychecks',
1437	0x16000049 => 'testsigning',	1504	0x16000049 => 'testsigning',
1438	0x1200004a => 'fontpath',	1505	0x1200004a => 'fontpath',
1439	0x1500004b => 'integrityservices',	1506	0x1500004b => 'integrityservices',
1440	0x1500004c => 'volumebandid',	1507	0x1500004c => 'volumebandid',
1441	0x16000050 => 'extendedinput',	1508	0x16000050 => 'extendedinput',
1442	0x15000051 => 'initialconsoleinput',	1509	0x15000051 => 'initialconsoleinput',
1443	0x15000052 => 'graphicsresolution',	1510	0x15000052 => 'graphicsresolution',
1444	0x16000053 => 'restartonfailure',	1511	0x16000053 => 'restartonfailure',
1445	0x16000054 => 'highestmode',	1512	0x16000054 => 'highestmode',
1446	0x16000060 => 'isolatedcontext',	1513	0x16000060 => 'isolatedcontext',
1447	0x15000065 => 'displaymessage',	1514	0x15000065 => 'displaymessage',
1448	0x15000066 => 'displaymessageoverride',	1515	0x15000066 => 'displaymessageoverride',
1449	0x16000068 => 'nobootuxtext',	1516	0x16000068 => 'nobootuxtext',
1450	0x16000069 => 'nobootuxprogress',	1517	0x16000069 => 'nobootuxprogress',
1451	0x1600006a => 'nobootuxfade',	1518	0x1600006a => 'nobootuxfade',
1452	0x1600006b => 'bootuxreservepooldebug',	1519	0x1600006b => 'bootuxreservepooldebug',
1453	0x1600006c => 'bootuxdisabled',	1520	0x1600006c => 'bootuxdisabled',
1454	0x1500006d => 'bootuxfadeframes',	1521	0x1500006d => 'bootuxfadeframes',
1455	0x1600006e => 'bootuxdumpstats',	1522	0x1600006e => 'bootuxdumpstats',
1456	0x1600006f => 'bootuxshowstats',	1523	0x1600006f => 'bootuxshowstats',
1457	0x16000071 => 'multibootsystem',	1524	0x16000071 => 'multibootsystem',
1458	0x16000072 => 'nokeyboard',	1525	0x16000072 => 'nokeyboard',
1459	0x15000073 => 'aliaswindowskey',	1526	0x15000073 => 'aliaswindowskey',
1460	0x16000074 => 'bootshutdowndisabled',	1527	0x16000074 => 'bootshutdowndisabled',
1461	0x15000075 => 'performancefrequency',	1528	0x15000075 => 'performancefrequency',
1462	0x15000076 => 'securebootrawpolicy',	1529	0x15000076 => 'securebootrawpolicy',
1463	0x17000077 => 'allowedinmemorysettings',	1530	0x17000077 => 'allowedinmemorysettings',
1464	0x15000079 => 'bootuxtransitiontime',	1531	0x15000079 => 'bootuxtransitiontime',
1465	0x1600007a => 'mobilegraphics',	1532	0x1600007a => 'mobilegraphics',
1466	0x1600007b => 'forcefipscrypto',	1533	0x1600007b => 'forcefipscrypto',
1467	0x1500007d => 'booterrorux',	1534	0x1500007d => 'booterrorux',
1468	0x1600007e => 'flightsigning',	1535	0x1600007e => 'flightsigning',
1469	0x1500007f => 'measuredbootlogformat',	1536	0x1500007f => 'measuredbootlogformat',
1470	0x15000080 => 'displayrotation',	1537	0x15000080 => 'displayrotation',
1471	0x15000081 => 'logcontrol',	1538	0x15000081 => 'logcontrol',
1472	0x16000082 => 'nofirmwaresync',	1539	0x16000082 => 'nofirmwaresync',
1473	0x11000084 => 'windowssyspart',	1540	0x11000084 => 'windowssyspart',
1474	0x16000087 => 'numlock',	1541	0x16000087 => 'numlock',
1475	0x22000001 => 'bpbstring',	1542	0x26000202 => 'skipffumode',
		1543	0x26000203 => 'forceffumode',
		1544	0x25000510 => 'chargethreshold',
		1545	0x26000512 => 'offmodecharging',
		1546	0x25000aaa => 'bootflow',
		1547	0x45000001 => 'devicetype',
		1548	0x42000002 => 'applicationrelativepath',
		1549	0x42000003 => 'ramdiskdevicerelativepath',
		1550	0x46000004 => 'omitosloaderelements',
		1551	0x47000006 => 'elementstomigrate',
		1552	0x46000010 => 'recoveryos',
		1553	},
		1554	bootapp => {
		1555	0x26000145 => 'enablebootdebugpolicy',
		1556	0x26000146 => 'enablebootorderclean',
		1557	0x26000147 => 'enabledeviceid',
		1558	0x26000148 => 'enableffuloader',
		1559	0x26000149 => 'enableiuloader',
		1560	0x2600014a => 'enablemassstorage',
		1561	0x2600014b => 'enablerpmbprovisioning',
		1562	0x2600014c => 'enablesecurebootpolicy',
		1563	0x2600014d => 'enablestartcharge',
		1564	0x2600014e => 'enableresettpm',
		1565	},
		1566	bootmgr => {
1476	0x24000001 => 'displayorder',	1567	0x24000001 => 'displayorder',
1477	0x21000001 => 'filedevice',
1478	0x21000001 => 'osdevice',
1479	0x25000001 => 'passcount',
1480	0x26000001 => 'pxesoftreboot',
1481	0x22000002 => 'applicationname',
1482	0x24000002 => 'bootsequence',	1568	0x24000002 => 'bootsequence',
1483	0x22000002 => 'filepath',
1484	0x22000002 => 'systemroot',
1485	0x25000002 => 'testmix',
1486	0x26000003 => 'cacheenable',
1487	0x26000003 => 'customsettings',
1488	0x23000003 => 'default',	1569	0x23000003 => 'default',
1489	0x25000003 => 'failurecount',
1490	0x23000003 => 'resumeobject',
1491	0x26000004 => 'failuresenabled',
1492	0x26000004 => 'pae',
1493	0x26000004 => 'stampdisks',
1494	0x25000004 => 'testtofail',
1495	0x25000004 => 'timeout',	1570	0x25000004 => 'timeout',
1496	0x21000005 => 'associatedosdevice',
1497	0x26000005 => 'cacheenable',
1498	0x26000005 => 'resume',	1571	0x26000005 => 'resume',
1499	0x25000005 => 'stridefailcount',
1500	0x26000006 => 'debugoptionenabled',
1501	0x25000006 => 'invcfailcount',
1502	0x23000006 => 'resumeobject',	1572	0x23000006 => 'resumeobject',
1503	0x25000007 => 'bootux',
1504	0x25000007 => 'matsfailcount',
1505	0x24000007 => 'startupsequence',	1573	0x24000007 => 'startupsequence',
1506	0x25000008 => 'bootmenupolicy',
1507	0x25000008 => 'randfailcount',
1508	0x25000009 => 'chckrfailcount',
1509	0x26000010 => 'detecthal',
1510	0x24000010 => 'toolsdisplayorder',	1574	0x24000010 => 'toolsdisplayorder',
1511	0x22000011 => 'kernel',
1512	0x22000012 => 'hal',
1513	0x22000013 => 'dbgtransport',
1514	0x26000020 => 'displaybootmenu',	1575	0x26000020 => 'displaybootmenu',
1515	0x25000020 => 'nx',
1516	0x26000021 => 'noerrordisplay',	1576	0x26000021 => 'noerrordisplay',
1517	0x25000021 => 'pae',
1518	0x21000022 => 'bcddevice',	1577	0x21000022 => 'bcddevice',
1519	0x26000022 => 'winpe',
1520	0x22000023 => 'bcdfilepath',	1578	0x22000023 => 'bcdfilepath',
1521	0x26000024 => 'hormenabled',	1579	0x26000024 => 'hormenabled',
1522	0x26000024 => 'hormenabled',
1523	0x26000024 => 'nocrashautoreboot',
1524	0x26000025 => 'hiberboot',	1580	0x26000025 => 'hiberboot',
1525	0x26000025 => 'lastknowngood',
1526	0x26000026 => 'oslnointegritychecks',
1527	0x22000026 => 'passwordoverride',	1581	0x22000026 => 'passwordoverride',
1528	0x26000027 => 'osltestsigning',
1529	0x22000027 => 'pinpassphraseoverride',	1582	0x22000027 => 'pinpassphraseoverride',
1530	0x26000028 => 'processcustomactionsfirst',	1583	0x26000028 => 'processcustomactionsfirst',
1531	0x27000030 => 'customactions',	1584	0x27000030 => 'customactions',
1532	0x26000030 => 'nolowmem',
1533	0x26000031 => 'persistbootsequence',	1585	0x26000031 => 'persistbootsequence',
1534	0x25000031 => 'removememory',
1535	0x25000032 => 'increaseuserva',
1536	0x26000032 => 'skipstartupsequence',	1586	0x26000032 => 'skipstartupsequence',
1537	0x25000033 => 'perfmem',
1538	0x22000040 => 'fverecoveryurl',	1587	0x22000040 => 'fverecoveryurl',
1539	0x26000040 => 'vga',
1540	0x22000041 => 'fverecoverymessage',	1588	0x22000041 => 'fverecoverymessage',
		1589	},
		1590	device => {
		1591	0x35000001 => 'ramdiskimageoffset',
		1592	0x35000002 => 'ramdisktftpclientport',
		1593	0x31000003 => 'ramdisksdidevice',
		1594	0x32000004 => 'ramdisksdipath',
		1595	0x35000005 => 'ramdiskimagelength',
		1596	0x36000006 => 'exportascd',
		1597	0x35000007 => 'ramdisktftpblocksize',
		1598	0x35000008 => 'ramdisktftpwindowsize',
		1599	0x36000009 => 'ramdiskmcenabled',
		1600	0x3600000a => 'ramdiskmctftpfallback',
		1601	0x3600000b => 'ramdisktftpvarwindow',
		1602	},
		1603	memdiag => {
		1604	0x25000001 => 'passcount',
		1605	0x25000002 => 'testmix',
		1606	0x25000003 => 'failurecount',
		1607	0x26000003 => 'cacheenable',
		1608	0x25000004 => 'testtofail',
		1609	0x26000004 => 'failuresenabled',
		1610	0x25000005 => 'stridefailcount',
		1611	0x26000005 => 'cacheenable',
		1612	0x25000006 => 'invcfailcount',
		1613	0x25000007 => 'matsfailcount',
		1614	0x25000008 => 'randfailcount',
		1615	0x25000009 => 'chckrfailcount',
		1616	},
		1617	ntldr => {
		1618	0x22000001 => 'bpbstring',
		1619	},
		1620	osloader => {
		1621	0x21000001 => 'osdevice',
		1622	0x22000002 => 'systemroot',
		1623	0x23000003 => 'resumeobject',
		1624	0x26000004 => 'stampdisks',
		1625	0x26000010 => 'detecthal',
		1626	0x22000011 => 'kernel',
		1627	0x22000012 => 'hal',
		1628	0x22000013 => 'dbgtransport',
		1629	0x25000020 => 'nx',
		1630	0x25000021 => 'pae',
		1631	0x26000022 => 'winpe',
		1632	0x26000024 => 'nocrashautoreboot',
		1633	0x26000025 => 'lastknowngood',
		1634	0x26000026 => 'oslnointegritychecks',
		1635	0x26000027 => 'osltestsigning',
		1636	0x26000030 => 'nolowmem',
		1637	0x25000031 => 'removememory',
		1638	0x25000032 => 'increaseuserva',
		1639	0x25000033 => 'perfmem',
		1640	0x26000040 => 'vga',
1541	0x26000041 => 'quietboot',	1641	0x26000041 => 'quietboot',
1542	0x26000042 => 'novesa',	1642	0x26000042 => 'novesa',
1543	0x26000043 => 'novga',	1643	0x26000043 => 'novga',
1544	0x25000050 => 'clustermodeaddressing',	1644	0x25000050 => 'clustermodeaddressing',
1545	0x26000051 => 'usephysicaldestination',	1645	0x26000051 => 'usephysicaldestination',
1546	0x25000052 => 'restrictapiccluster',	1646	0x25000052 => 'restrictapiccluster',
1547	0x22000053 => 'evstore',	1647	0x22000053 => 'evstore',
1548	0x26000054 => 'uselegacyapicmode',	1648	0x26000054 => 'uselegacyapicmode',
1549	0x26000060 => 'onecpu',	1649	0x26000060 => 'onecpu',
1550	0x25000061 => 'numproc',	1650	0x25000061 => 'numproc',
1551	0x26000062 => 'maxproc',	1651	0x26000062 => 'maxproc',
1552	0x25000063 => 'configflags',	1652	0x25000063 => 'configflags',
1553	0x26000064 => 'maxgroup',	1653	0x26000064 => 'maxgroup',
1554	0x26000065 => 'groupaware',	1654	0x26000065 => 'groupaware',
1555	0x25000066 => 'groupsize',	1655	0x25000066 => 'groupsize',
1556	0x26000070 => 'usefirmwarepcisettings',	1656	0x26000070 => 'usefirmwarepcisettings',
1557	0x25000071 => 'msi',	1657	0x25000071 => 'msi',
1558	0x25000072 => 'pciexpress',	1658	0x25000072 => 'pciexpress',
1559	0x25000080 => 'safeboot',	1659	0x25000080 => 'safeboot',
1560	0x26000081 => 'safebootalternateshell',	1660	0x26000081 => 'safebootalternateshell',
1561	0x26000090 => 'bootlog',	1661	0x26000090 => 'bootlog',
1562	0x26000091 => 'sos',	1662	0x26000091 => 'sos',
1563	0x260000a0 => 'debug',	1663	0x260000a0 => 'debug',
1564	0x260000a1 => 'halbreakpoint',	1664	0x260000a1 => 'halbreakpoint',
1565	0x260000a2 => 'useplatformclock',	1665	0x260000a2 => 'useplatformclock',
1566	0x260000a3 => 'forcelegacyplatform',	1666	0x260000a3 => 'forcelegacyplatform',
1567	0x260000a4 => 'useplatformtick',	1667	0x260000a4 => 'useplatformtick',
1568	0x260000a5 => 'disabledynamictick',	1668	0x260000a5 => 'disabledynamictick',
1569	0x250000a6 => 'tscsyncpolicy',	1669	0x250000a6 => 'tscsyncpolicy',
1570	0x260000b0 => 'ems',	1670	0x260000b0 => 'ems',
1571	0x250000c0 => 'forcefailure',	1671	0x250000c0 => 'forcefailure',
1572	0x250000c1 => 'driverloadfailurepolicy',	1672	0x250000c1 => 'driverloadfailurepolicy',
1573	0x250000c2 => 'bootmenupolicy',	1673	0x250000c2 => 'bootmenupolicy',
1574	0x260000c3 => 'onetimeadvancedoptions',	1674	0x260000c3 => 'onetimeadvancedoptions',
1575	0x260000c4 => 'onetimeoptionsedit',	1675	0x260000c4 => 'onetimeoptionsedit',
1576	0x250000e0 => 'bootstatuspolicy',	1676	0x250000e0 => 'bootstatuspolicy',
1577	0x260000e1 => 'disableelamdrivers',	1677	0x260000e1 => 'disableelamdrivers',
1578	0x250000f0 => 'hypervisorlaunchtype',	1678	0x250000f0 => 'hypervisorlaunchtype',
1579	0x220000f1 => 'hypervisorpath',	1679	0x220000f1 => 'hypervisorpath',
1580	0x260000f2 => 'hypervisordebug',	1680	0x260000f2 => 'hypervisordebug',
1581	0x250000f3 => 'hypervisordebugtype',	1681	0x250000f3 => 'hypervisordebugtype',
1582	0x250000f4 => 'hypervisordebugport',	1682	0x250000f4 => 'hypervisordebugport',
1583	0x250000f5 => 'hypervisorbaudrate',	1683	0x250000f5 => 'hypervisorbaudrate',
1584	0x250000f6 => 'hypervisorchannel',	1684	0x250000f6 => 'hypervisorchannel',
1585	0x250000f7 => 'bootux',	1685	0x250000f7 => 'bootux',
1586	0x260000f8 => 'hypervisordisableslat',	1686	0x260000f8 => 'hypervisordisableslat',
1587	0x220000f9 => 'hypervisorbusparams',	1687	0x220000f9 => 'hypervisorbusparams',
1588	0x250000fa => 'hypervisornumproc',	1688	0x250000fa => 'hypervisornumproc',
1589	0x250000fb => 'hypervisorrootprocpernode',	1689	0x250000fb => 'hypervisorrootprocpernode',
1590	0x260000fc => 'hypervisoruselargevtlb',	1690	0x260000fc => 'hypervisoruselargevtlb',
1591	0x250000fd => 'hypervisorhostip',	1691	0x250000fd => 'hypervisorhostip',
1592	0x250000fe => 'hypervisorhostport',	1692	0x250000fe => 'hypervisorhostport',
1593	0x250000ff => 'hypervisordebugpages',	1693	0x250000ff => 'hypervisordebugpages',
1594	0x25000100 => 'tpmbootentropy',	1694	0x25000100 => 'tpmbootentropy',
1595	0x22000110 => 'hypervisorusekey',	1695	0x22000110 => 'hypervisorusekey',
1596	0x22000112 => 'hypervisorproductskutype',	1696	0x22000112 => 'hypervisorproductskutype',
1597	0x25000113 => 'hypervisorrootproc',	1697	0x25000113 => 'hypervisorrootproc',
1598	0x26000114 => 'hypervisordhcp',	1698	0x26000114 => 'hypervisordhcp',
1599	0x25000115 => 'hypervisoriommupolicy',	1699	0x25000115 => 'hypervisoriommupolicy',
1600	0x26000116 => 'hypervisorusevapic',	1700	0x26000116 => 'hypervisorusevapic',
1601	0x22000117 => 'hypervisorloadoptions',	1701	0x22000117 => 'hypervisorloadoptions',
1602	0x25000118 => 'hypervisormsrfilterpolicy',	1702	0x25000118 => 'hypervisormsrfilterpolicy',
1603	0x25000119 => 'hypervisormmionxpolicy',	1703	0x25000119 => 'hypervisormmionxpolicy',
1604	0x2500011a => 'hypervisorschedulertype',	1704	0x2500011a => 'hypervisorschedulertype',
1605	0x25000120 => 'xsavepolicy',	1705	0x25000120 => 'xsavepolicy',
1606	0x25000121 => 'xsaveaddfeature0',	1706	0x25000121 => 'xsaveaddfeature0',
1607	0x25000122 => 'xsaveaddfeature1',	1707	0x25000122 => 'xsaveaddfeature1',
1608	0x25000123 => 'xsaveaddfeature2',	1708	0x25000123 => 'xsaveaddfeature2',
1609	0x25000124 => 'xsaveaddfeature3',	1709	0x25000124 => 'xsaveaddfeature3',
1610	0x25000125 => 'xsaveaddfeature4',	1710	0x25000125 => 'xsaveaddfeature4',
1611	0x25000126 => 'xsaveaddfeature5',	1711	0x25000126 => 'xsaveaddfeature5',
1612	0x25000127 => 'xsaveaddfeature6',	1712	0x25000127 => 'xsaveaddfeature6',
1613	0x25000128 => 'xsaveaddfeature7',	1713	0x25000128 => 'xsaveaddfeature7',
1614	0x25000129 => 'xsaveremovefeature',	1714	0x25000129 => 'xsaveremovefeature',
1615	0x2500012a => 'xsaveprocessorsmask',	1715	0x2500012a => 'xsaveprocessorsmask',
1616	0x2500012b => 'xsavedisable',	1716	0x2500012b => 'xsavedisable',
1617	0x2500012c => 'kerneldebugtype',	1717	0x2500012c => 'kerneldebugtype',
1618	0x2200012d => 'kernelbusparams',	1718	0x2200012d => 'kernelbusparams',
1619	0x2500012e => 'kerneldebugaddress',	1719	0x2500012e => 'kerneldebugaddress',
1620	0x2500012f => 'kerneldebugport',	1720	0x2500012f => 'kerneldebugport',
1621	0x25000130 => 'claimedtpmcounter',	1721	0x25000130 => 'claimedtpmcounter',
1622	0x25000131 => 'kernelchannel',	1722	0x25000131 => 'kernelchannel',
1623	0x22000132 => 'kerneltargetname',	1723	0x22000132 => 'kerneltargetname',
1624	0x25000133 => 'kernelhostip',	1724	0x25000133 => 'kernelhostip',
1625	0x25000134 => 'kernelport',	1725	0x25000134 => 'kernelport',
1626	0x26000135 => 'kerneldhcp',	1726	0x26000135 => 'kerneldhcp',
1627	0x22000136 => 'kernelkey',	1727	0x22000136 => 'kernelkey',
1628	0x22000137 => 'imchivename',	1728	0x22000137 => 'imchivename',
1629	0x21000138 => 'imcdevice',	1729	0x21000138 => 'imcdevice',
1630	0x25000139 => 'kernelbaudrate',	1730	0x25000139 => 'kernelbaudrate',
1631	0x22000140 => 'mfgmode',	1731	0x22000140 => 'mfgmode',
1632	0x26000141 => 'event',	1732	0x26000141 => 'event',
1633	0x25000142 => 'vsmlaunchtype',	1733	0x25000142 => 'vsmlaunchtype',
1634	0x25000144 => 'hypervisorenforcedcodeintegrity',	1734	0x25000144 => 'hypervisorenforcedcodeintegrity',
1635	0x26000145 => 'enablebootdebugpolicy',
1636	0x26000146 => 'enablebootorderclean',
1637	0x26000147 => 'enabledeviceid',
1638	0x26000148 => 'enableffuloader',
1639	0x26000149 => 'enableiuloader',
1640	0x2600014a => 'enablemassstorage',
1641	0x2600014b => 'enablerpmbprovisioning',
1642	0x2600014c => 'enablesecurebootpolicy',
1643	0x2600014d => 'enablestartcharge',
1644	0x2600014e => 'enableresettpm',
1645	0x21000150 => 'systemdatadevice',	1735	0x21000150 => 'systemdatadevice',
1646	0x21000151 => 'osarcdevice',	1736	0x21000151 => 'osarcdevice',
1647	0x21000153 => 'osdatadevice',	1737	0x21000153 => 'osdatadevice',
1648	0x21000154 => 'bspdevice',	1738	0x21000154 => 'bspdevice',
1649	0x21000155 => 'bspfilepath',	1739	0x21000155 => 'bspfilepath',
1650	0x26000202 => 'skipffumode',	1740	},
1651	0x26000203 => 'forceffumode',	1741	resume => {
1652	0x25000510 => 'chargethreshold',	1742	0x21000001 => 'filedevice',
1653	0x26000512 => 'offmodecharging',	1743	0x22000002 => 'filepath',
1654	0x25000aaa => 'bootflow',	1744	0x26000003 => 'customsettings',
1655	0x35000001 => 'ramdiskimageoffset',	1745	0x26000004 => 'pae',
1656	0x35000002 => 'ramdisktftpclientport',	1746	0x21000005 => 'associatedosdevice',
1657	0x31000003 => 'ramdisksdidevice',	1747	0x26000006 => 'debugoptionenabled',
1658	0x32000004 => 'ramdisksdipath',	1748	0x25000007 => 'bootux',
1659	0x35000005 => 'ramdiskimagelength',	1749	0x25000008 => 'bootmenupolicy',
1660	0x36000006 => 'exportascd',	1750	0x26000024 => 'hormenabled',
1661	0x35000007 => 'ramdisktftpblocksize',	1751	},
1662	0x35000008 => 'ramdisktftpwindowsize',	1752	startup => {
1663	0x36000009 => 'ramdiskmcenabled',	1753	0x26000001 => 'pxesoftreboot',
1664	0x3600000a => 'ramdiskmctftpfallback',	1754	0x22000002 => 'applicationname',
1665	0x3600000b => 'ramdisktftpvarwindow',	1755	},
1666	0x45000001 => 'devicetype',
1667	0x42000002 => 'applicationrelativepath',
1668	0x42000003 => 'ramdiskdevicerelativepath',
1669	0x46000004 => 'omitosloaderelements',
1670	0x47000006 => 'elementstomigrate',
1671	0x46000010 => 'recoveryos',
1672	);	1756	);
1673		1757
1674	our %rbcde = reverse %bcde;	1758	# mask, value => class
		1759	our @bcde_typeclass = (
		1760	[0x00000000, 0x00000000, 'any'],
		1761	[0xf00fffff, 0x1000000a, 'bootapp'],
		1762	[0xf0ffffff, 0x2020000a, 'bootapp'],
		1763	[0xf00fffff, 0x10000001, 'bootmgr'],
		1764	[0xf00fffff, 0x10000002, 'bootmgr'],
		1765	[0xf0ffffff, 0x20200001, 'bootmgr'],
		1766	[0xf0ffffff, 0x20200002, 'bootmgr'],
		1767	[0xf0f00000, 0x20300000, 'device'],
		1768	[0xf0000000, 0x30000000, 'device'],
		1769	[0xf00fffff, 0x10000005, 'memdiag'],
		1770	[0xf0ffffff, 0x20200005, 'memdiag'],
		1771	[0xf00fffff, 0x10000006, 'ntldr'],
		1772	[0xf00fffff, 0x10000007, 'ntldr'],
		1773	[0xf0ffffff, 0x20200006, 'ntldr'],
		1774	[0xf0ffffff, 0x20200007, 'ntldr'],
		1775	[0xf00fffff, 0x10000003, 'osloader'],
		1776	[0xf0ffffff, 0x20200003, 'osloader'],
		1777	[0xf00fffff, 0x10000004, 'resume'],
		1778	[0xf0ffffff, 0x20200004, 'resume'],
		1779	[0xf00fffff, 0x10000009, 'startup'],
		1780	[0xf0ffffff, 0x20200009, 'startup'],
		1781	);
1675		1782
		1783	our %rbcde_byclass;
		1784
		1785	while (my ($k, $v) = each %bcde_byclass) {
		1786	$rbcde_byclass{$k} = { reverse %$v };
		1787	}
		1788
		1789	# decodes (numerical elem, type) to name
1676	sub dec_bcde_id($) {	1790	sub dec_bcde_id($$) {
		1791	for my $class (@bcde_typeclass) {
		1792	if (($_[1] & $class->[0]) == $class->[1]) {
		1793	if (my $id = $bcde_byclass{$class->[2]}{$_[0]}) {
		1794	return $id;
		1795	}
		1796	}
		1797	}
		1798
1677	$bcde{$_[0]} // sprintf "custom:%08x", $_[0]	1799	sprintf "custom:%08x", $_[0]
1678	}	1800	}
1679		1801
		1802	# encodes (elem as name, type)
1680	sub enc_bcde_id($) {	1803	sub enc_bcde_id($$) {
1681	$_[0] =~ /^custom:([0-9a-fA-F]{8}$)/	1804	$_[0] =~ /^custom:(?:0x)?([0-9a-fA-F]{8}$)/
1682	? hex $1	1805	and return hex $1;
1683	: $rbcde{$_[0]}	1806
		1807	for my $class (@bcde_typeclass) {
		1808	if (($_[1] & $class->[0]) == $class->[1]) {
		1809	if (my $value = $rbcde_byclass{$class->[2]}{$_[0]}) {
		1810	return $value;
		1811	}
		1812	}
		1813	}
		1814
		1815	undef
1684	}	1816	}
1685		1817
1686	# decode/encode bcd device element - the horror, no documentaion	1818	# decode/encode bcd device element - the horror, no documentaion
1687	# whatsoever, supercomplex, superinconsistent.	1819	# whatsoever, supercomplex, superinconsistent.
1688		1820
…		…
1692		1824
1693	our $NULL_DEVICE = "\x00" x 16;	1825	our $NULL_DEVICE = "\x00" x 16;
1694		1826
1695	# biggest bitch to decode, ever	1827	# biggest bitch to decode, ever
1696	# this decoded a device portion after the GUID	1828	# this decoded a device portion after the GUID
1697	sub dec_device_($);	1829	sub dec_device_($$);
1698	sub dec_device_($) {	1830	sub dec_device_($$) {
1699	my ($device) = @_;	1831	my ($device, $type) = @_;
1700		1832
1701	my $res;	1833	my $res;
1702		1834
1703	my ($type, $flags, $length, $pad) = unpack "VVVV", substr $device, 0, 4 * 4, "";	1835	my ($type, $flags, $length, $pad) = unpack "VVVV", substr $device, 0, 4 * 4, "";
1704		1836
…		…
1749		1881
1750	my $partid = $parttype eq "gpt" ? dec_guid $partdata	1882	my $partid = $parttype eq "gpt" ? dec_guid $partdata
1751	: $type eq "partition" ? unpack "Q<", $partdata # byte offset to partition start	1883	: $type eq "partition" ? unpack "Q<", $partdata # byte offset to partition start
1752	: unpack "L<", $partdata; # partition number, one-based	1884	: unpack "L<", $partdata; # partition number, one-based
1753		1885
1754	(my $parent, $device) = dec_device_ $device;	1886	(my $parent, $device) = dec_device_ $device, $type;
1755		1887
1756	$res .= "=";	1888	$res .= "=";
1757	$res .= "<$parent>";	1889	$res .= "<$parent>";
1758	$res .= ",$blocktype,$parttype,$diskid,$partid";	1890	$res .= ",$blocktype,$parttype,$diskid,$partid";
1759		1891
…		…
1779	or die "unsupported file descriptor version '$fver'\n";	1911	or die "unsupported file descriptor version '$fver'\n";
1780		1912
1781	$ftype == 5	1913	$ftype == 5
1782	or die "unsupported file descriptor path type '$type'\n";	1914	or die "unsupported file descriptor path type '$type'\n";
1783		1915
1784	(my $parent, $path) = dec_device_ $path;	1916	(my $parent, $path) = dec_device_ $path, $type;
1785		1917
1786	$path = $dec_path->($path, "file device without path");	1918	$path = $dec_path->($path, "file device without path");
1787		1919
1788	($parent, $path)	1920	($parent, $path)
1789	};	1921	};
…		…
1795		1927
1796	} elsif ($blocktype eq "vhd") {	1928	} elsif ($blocktype eq "vhd") {
1797	$device =~ s/^\x00{20}//s	1929	$device =~ s/^\x00{20}//s
1798	or die "virtualdisk has non-zero fields I don't understand\n";	1930	or die "virtualdisk has non-zero fields I don't understand\n";
1799		1931
1800	(my $parent, $device) = dec_device_ $device;	1932	(my $parent, $device) = dec_device_ $device, $type;
1801		1933
1802	$res .= "=vhd,<$parent>";	1934	$res .= "=vhd,<$parent>";
1803		1935
1804	} elsif ($blocktype eq "ramdisk") {	1936	} elsif ($blocktype eq "ramdisk") {
1805	my ($base, $size, $offset) = unpack "Q< Q< L<", substr $device, 0, 8 + 8 + 4, "";	1937	my ($base, $size, $offset) = unpack "Q< Q< L<", substr $device, 0, 8 + 8 + 4, "";
…		…
1818	my ($mode, $elem, $parent) = unpack "VVV", substr $device, 0, 4 * 3, "";	1950	my ($mode, $elem, $parent) = unpack "VVV", substr $device, 0, 4 * 3, "";
1819		1951
1820	if ($parent) {	1952	if ($parent) {
1821	# not sure why this is an offset - it must come after the path	1953	# not sure why this is an offset - it must come after the path
1822	$parent = substr $device, $parent - 4 * 3 - 4 * 4, 1e9, "";	1954	$parent = substr $device, $parent - 4 * 3 - 4 * 4, 1e9, "";
1823	($parent, my $tail) = dec_device_ $parent;	1955	($parent, my $tail) = dec_device_ $parent, $type;
1824	0 == length $tail	1956	0 == length $tail
1825	or die "trailing data after locate device parent\n";	1957	or die "trailing data after locate device parent\n";
1826	} else {	1958	} else {
1827	$parent = "null";	1959	$parent = "null";
1828	}	1960	}
…		…
1834		1966
1835	if ($mode == 0) { # "Element"	1967	if ($mode == 0) { # "Element"
1836	!length $path	1968	!length $path
1837	or die "device locate mode 0 having non-empty path ($mode, $elem, $path)\n";	1969	or die "device locate mode 0 having non-empty path ($mode, $elem, $path)\n";
1838		1970
1839	$elem = dec_bcde_id $elem;	1971	$elem = dec_bcde_id $elem, $type;
1840	$res .= "element,$elem";	1972	$res .= "element,$elem";
1841		1973
1842	} elsif ($mode == 1) { # "String"	1974	} elsif ($mode == 1) { # "String"
1843	!$elem	1975	!$elem
1844	or die "device locate mode 1 having non-zero element\n";	1976	or die "device locate mode 1 having non-zero element\n";
…		…
1869		2001
1870	($res, $tail)	2002	($res, $tail)
1871	}	2003	}
1872		2004
1873	# decode a full binary BCD device descriptor	2005	# decode a full binary BCD device descriptor
1874	sub dec_device($) {	2006	sub dec_device($$) {
1875	my ($device) = @_;	2007	my ($device, $type) = @_;
1876		2008
1877	$device = pack "H*", $device;	2009	$device = pack "H*", $device;
1878		2010
1879	my $guid = dec_guid substr $device, 0, 16, "";	2011	my $guid = dec_guid substr $device, 0, 16, "";
1880	$guid = $guid eq "00000000-0000-0000-0000-000000000000"	2012	$guid = $guid eq "00000000-0000-0000-0000-000000000000"
1881	? "" : "{$guid}";	2013	? "" : "{$guid}";
1882		2014
1883	eval {	2015	eval {
1884	my ($dev, $tail) = dec_device_ $device;	2016	my ($dev, $tail) = dec_device_ $device, $type;
1885		2017
1886	$tail eq ""	2018	$tail eq ""
1887	or die "unsupported trailing data after device descriptor\n";	2019	or die "unsupported trailing data after device descriptor\n";
1888		2020
1889	"$guid$dev"	2021	"$guid$dev"
…		…
1901		2033
1902	undef	2034	undef
1903	}	2035	}
1904		2036
1905	# encode the device portion after the GUID	2037	# encode the device portion after the GUID
1906	sub enc_device_;	2038	sub enc_device_($$);
1907	sub enc_device_ {	2039	sub enc_device_($$) {
1908	my ($device) = @_;	2040	my ($device, $type) = @_;
1909		2041
1910	my $enc_path = sub {	2042	my $enc_path = sub {
1911	my $path = shift;	2043	my $path = shift;
1912	$path =~ s/\//\\/g;	2044	$path =~ s/\//\\/g;
1913	(Encode::encode "UTF-16LE", $path) . "\x00\x00"	2045	(Encode::encode "UTF-16LE", $path) . "\x00\x00"
…		…
1931		2063
1932	my $parse_parent = sub {	2064	my $parse_parent = sub {
1933	my $parent;	2065	my $parent;
1934		2066
1935	if (s/^<//) {	2067	if (s/^<//) {
1936	($parent, $_) = enc_device_ $_;	2068	($parent, $_) = enc_device_ $_, $type;
1937	s/^>//	2069	s/^>//
1938	or die "$device: syntax error: parent device not followed by '>'\n";	2070	or die "$device: syntax error: parent device not followed by '>'\n";
1939	} else {	2071	} else {
1940	$parent = $NULL_DEVICE;	2072	$parent = $NULL_DEVICE;
1941	}	2073	}
…		…
2029		2161
2030	s/^,//	2162	s/^,//
2031	or die "$_: missing comma after locate parent device\n";	2163	or die "$_: missing comma after locate parent device\n";
2032		2164
2033	if (s/^element,//) {	2165	if (s/^element,//) {
2034	s/^([0-9a-z]+)//i	2166	s/^([0-9a-z:]+)//i
2035	or die "$_ locate element must be either name or 8-digit hex id\n";	2167	or die "$_ locate element must be either name or 8-digit hex id\n";
2036	$elem = enc_bcde_id $1;	2168	$elem = enc_bcde_id $1, $type;
2037	$mode = 0;	2169	$mode = 0;
2038	$path = $enc_path->("");	2170	$path = $enc_path->("");
2039		2171
2040	} elsif (s/^path,//) {	2172	} elsif (s/^path,//) {
2041	$mode = 1;	2173	$mode = 1;
…		…
2120	);	2252	);
2121	}	2253	}
2122	}	2254	}
2123		2255
2124	# encode a full binary BCD device descriptor	2256	# encode a full binary BCD device descriptor
2125	sub enc_device {	2257	sub enc_device($$) {
2126	my ($device) = @_;	2258	my ($device, $type) = @_;
2127		2259
2128	my $guid = "\x00" x 16;	2260	my $guid = "\x00" x 16;
2129		2261
2130	if ($device =~ s/^\{([A-Za-z0-9\-]+)\}//) {	2262	if ($device =~ s/^\{([A-Za-z0-9\-]+)\}//) {
2131	$guid = enc_guid $1	2263	$guid = enc_guid $1
2132	or die "$device: does not start with valid guid\n";	2264	or die "$device: does not start with valid guid\n";
2133	}	2265	}
2134		2266
2135	my ($descriptor, $tail) = enc_device_ $device;	2267	my ($descriptor, $tail) = enc_device_ $device, $type;
2136		2268
2137	length $tail	2269	length $tail
2138	and die "$device: garbage after device descriptor\n";	2270	and die "$device: garbage after device descriptor\n";
2139		2271
2140	unpack "H*", $guid . $descriptor	2272	unpack "H*", $guid . $descriptor
…		…
2155	$k = $bcd_objects{$k} // $k;	2287	$k = $bcd_objects{$k} // $k;
2156		2288
2157	my $type = $v->{Description}[0]{Type}[1];	2289	my $type = $v->{Description}[0]{Type}[1];
2158		2290
2159	if ($type != $bcd_object_types{$k}) {	2291	if ($type != $bcd_object_types{$k}) {
2160	$type = $bcd_types{$type} // sprintf "0x%08x", $type;	2292	$kv{type} = $bcd_types{$type} // sprintf "0x%08x", $type;
2161	$kv{type} = $type;
2162	}	2293	}
2163		2294
2164	my $elems = $v->{Elements}[1];	2295	my $elems = $v->{Elements}[1];
2165		2296
2166	while (my ($k, $v) = each %$elems) {	2297	while (my ($k, $v) = each %$elems) {
2167	my $k = hex $k;	2298	my $k = hex $k;
2168		2299
2169	my $v = $bcde_dec{$k & BCDE_FORMAT}->($v->[0]{Element}[1]);	2300	my $v = $bcde_dec{$k & BCDE_FORMAT}->($v->[0]{Element}[1], $type);
2170	my $k = dec_bcde_id $k;	2301	my $k = dec_bcde_id $k, $type;
2171		2302
2172	$kv{$k} = $v;	2303	$kv{$k} = $v;
2173	}	2304	}
2174		2305
2175	$bcd{$k} = \%kv;	2306	$bcd{$k} = \%kv;
…		…
2216	my %elem;	2347	my %elem;
2217		2348
2218	while (my ($k, $v) = each %$v) {	2349	while (my ($k, $v) = each %$v) {
2219	next if $k eq "type";	2350	next if $k eq "type";
2220		2351
2221	$k = (enc_bcde_id $k) // die "$k: invalid bcde element name or id\n";	2352	$k = (enc_bcde_id $k, $type) // die "$k: invalid bcde element name or id\n";
2222	$elem{sprintf "%08x", $k} = [{	2353	$elem{sprintf "%08x", $k} = [{
2223	Element => [ ($bcde_enc{$k & BCDE_FORMAT} // die "$k: unable to encode unknown bcd element type}")->($v)]	2354	Element => [ ($bcde_enc{$k & BCDE_FORMAT} // die "$k: unable to encode unknown bcd element type}")->($v)]
2224	}];	2355	}];
2225	}	2356	}
2226		2357
…		…
2242	Objects => [undef, \%objects],	2373	Objects => [undef, \%objects],
2243	}]]	2374	}]]
2244	}	2375	}
2245		2376
2246	#############################################################################	2377	#############################################################################
		2378	# edit instructions
2247		2379
2248	sub bcd_edit_eval {	2380	sub bcd_edit_eval {
2249	package pbcdedit;	2381	package pbcdedit;
2250		2382
2251	our ($PATH, $BCD, $DEFAULT);	2383	our ($PATH, $BCD, $DEFAULT);
…		…
2255	}	2387	}
2256		2388
2257	sub bcd_edit {	2389	sub bcd_edit {
2258	my ($path, $bcd, @insns) = @_;	2390	my ($path, $bcd, @insns) = @_;
2259		2391
2260	my $default = $bcd->{"{bootmgr}"}{resumeobject};	2392	my $default = $bcd->{"{bootmgr}"}{default};
2261		2393
2262	# prepare "officially visible" variables	2394	# prepare "officially visible" variables
2263	local $pbcdedit::PATH = $path;	2395	local $pbcdedit::PATH = $path;
2264	local $pbcdedit::BCD = $bcd;	2396	local $pbcdedit::BCD = $bcd;
2265	local $pbcdedit::DEFAULT = $default;	2397	local $pbcdedit::DEFAULT = $default;
…		…
2269		2401
2270	if ($insn eq "get") {	2402	if ($insn eq "get") {
2271	my $object = shift @insns;	2403	my $object = shift @insns;
2272	my $elem = shift @insns;	2404	my $elem = shift @insns;
2273		2405
2274	$object = $default if $object eq "{default}";	2406	$object = $object eq "{default}" ? $default : dec_wguid enc_wguid $object;
2275		2407
2276	print $bcd->{$object}{$elem}, "\n";	2408	print $bcd->{$object}{$elem}, "\n";
2277		2409
2278	} elsif ($insn eq "set") {	2410	} elsif ($insn eq "set") {
2279	my $object = shift @insns;	2411	my $object = shift @insns;
2280	my $elem = shift @insns;	2412	my $elem = shift @insns;
2281	my $value = shift @insns;	2413	my $value = shift @insns;
2282		2414
2283	$object = $default if $object eq "{default}";	2415	$object = $object eq "{default}" ? $default : dec_wguid enc_wguid $object;
2284		2416
2285	$bcd->{$object}{$elem} = $value;	2417	$bcd->{$object}{$elem} = $value;
2286		2418
2287	} elsif ($insn eq "eval") {	2419	} elsif ($insn eq "eval") {
2288	bcd_edit_eval shift @insns;	2420	my $perl = shift @insns;
		2421	bcd_edit_eval "#line 1 'eval'\n$perl";
2289		2422
2290	} elsif ($insn eq "do") {	2423	} elsif ($insn eq "do") {
2291	my $path = shift @insns;	2424	my $path = shift @insns;
2292	my $file = file_load $path;	2425	my $file = file_load $path;
2293	bcd_edit_eval "#line 1 '$path'\n$file";	2426	bcd_edit_eval "#line 1 '$path'\n$file";
…		…
2298	}	2431	}
2299		2432
2300	}	2433	}
2301		2434
2302	#############################################################################	2435	#############################################################################
		2436	# other utilities
2303		2437
2304	# json to stdout	2438	# json to stdout
2305	sub prjson($) {	2439	sub prjson($) {
2306	print $json_coder->encode ($_[0]);	2440	print $json_coder->encode ($_[0]);
2307	}	2441	}
…		…
2311	my $json;	2445	my $json;
2312	1 while read STDIN, $json, 65536, length $json;	2446	1 while read STDIN, $json, 65536, length $json;
2313	$json_coder->decode ($json)	2447	$json_coder->decode ($json)
2314	}	2448	}
2315		2449
2316	# all subcommands	2450	sub lsblk() {
		2451	my $lsblk = $json_coder->decode (scalar qx<lsblk --json -o PATH,KNAME,MAJ:MIN,TYPE,PTTYPE,PTUUID,PARTUUID,LABEL,FSTYPE>);
		2452
		2453	for my $dev (@{ $lsblk->{blockdevices} }) {
		2454	if ($dev->{type} eq "part") {
		2455	if ($dev->{pttype} eq "gpt") {
		2456	$dev->{bcd_device} = "partition=<null>,harddisk,gpt,$dev->{ptuuid},$dev->{partuuid}";
		2457	} elsif ($dev->{pttype} eq "dos") { # why not "mbr" :(
		2458	if ($dev->{partuuid} =~ /^([0-9a-f]{8})-([0-9a-f]{2})\z/i) {
		2459	my ($diskid, $partno) = ($1, hex $2);
		2460	$dev->{bcd_legacy_device} = "legacypartition=<null>,harddisk,mbr,$diskid,$partno";
		2461	if (open my $fh, "/sys/class/block/$dev->{kname}/start") {
		2462	my $start = 512 * readline $fh;
		2463	$dev->{bcd_device} = "partition=<null>,harddisk,mbr,$diskid,$start";
		2464	}
		2465	}
		2466	}
		2467	}
		2468	}
		2469
		2470	$lsblk->{blockdevices}
		2471	}
		2472
		2473	sub prdev($$) {
		2474	my ($path, $attribute) = @_;
		2475
		2476	# rather than stat'ing and guessing how devices are encoded, we use lsblk for this
		2477	# unfortunately, there doesn't seem to be a way to restrict lsblk to just oned evice,
		2478	# so we always assume the first one is it.
		2479	my $mm = $json_coder->decode (scalar qx<lsblk -o MAJ:MIN -J \Q$path\E>)->{blockdevices}[0]{"maj:min"};
		2480
		2481	my $lsblk = lsblk;
		2482
		2483	for my $dev (@$lsblk) {
		2484	if ($dev->{"maj:min"} eq $mm && $dev->{$attribute}) {
		2485	say $dev->{$attribute};
		2486	exit 0;
		2487	}
		2488	}
		2489
		2490	exit 1;
		2491	}
		2492
		2493	#############################################################################
		2494	# command line parser
		2495
2317	our %CMD = (	2496	our %CMD = (
2318	help => sub {	2497	help => sub {
2319	require Pod::Usage;	2498	require Pod::Usage;
2320	Pod::Usage::pod2usage (-verbose => 2);	2499	Pod::Usage::pod2usage (-verbose => 2);
2321	},	2500	},
…		…
2346		2525
2347	print "\n";	2526	print "\n";
2348		2527
2349	printf "%-39s %-23s %s\n", "Object GUID", "Alias", "(Hex) Default Type";	2528	printf "%-39s %-23s %s\n", "Object GUID", "Alias", "(Hex) Default Type";
2350	for my $name (sort keys %rbcd_objects) {	2529	for my $name (sort keys %rbcd_objects) {
2351	my $guid = $rbcd_objects{$name};	2530	my $guid = $rbcd_objects{$name};
2352	my $type = $bcd_object_types{$name};	2531	my $type = $bcd_object_types{$name};
2353	my $tname = $bcd_types{$type};	2532	my $tname = $bcd_types{$type};
2354		2533
2355	$type = $type ? sprintf "(%08x) %s", $type, $tname : "-";	2534	$type = $type ? sprintf "(%08x) %s", $type, $tname : "-";
2356		2535
2357	printf "%-39s %-23s %s\n", $guid, $name, $type;	2536	printf "%-39s %-23s %s\n", $guid, $name, $type;
…		…
2371	BCDE_FORMAT_GUID_LIST , "guid list",	2550	BCDE_FORMAT_GUID_LIST , "guid list",
2372	BCDE_FORMAT_INTEGER , "integer",	2551	BCDE_FORMAT_INTEGER , "integer",
2373	BCDE_FORMAT_BOOLEAN , "boolean",	2552	BCDE_FORMAT_BOOLEAN , "boolean",
2374	BCDE_FORMAT_INTEGER_LIST, "integer list",	2553	BCDE_FORMAT_INTEGER_LIST, "integer list",
2375	);	2554	);
2376	my %rbcde = reverse %bcde;
2377	$_ = sprintf "%08x", $_ for values %rbcde;
2378		2555
2379	my %element;	2556	my @element;
2380		2557
		2558	for my $class (sort keys %rbcde_byclass) {
		2559	my $rbcde = $rbcde_byclass{$class};
		2560
2381	unless ($json) {	2561	unless ($json) {
2382	print "\n";	2562	print "\n";
		2563	printf "Elements applicable to class(es): $class\n";
2383	printf "%-9s %-12s %s\n", "Element", "Format", "Name Alias";	2564	printf "%-9s %-12s %s\n", "Element", "Format", "Name Alias";
2384	}	2565	}
2385	for my $name (sort keys %rbcde) {	2566	for my $name (sort keys %$rbcde) {
2386	my $id = $rbcde{$name};	2567	my $id = $rbcde->{$name};
2387	my $format = $format_name{(hex $id) & BCDE_FORMAT};	2568	my $format = $format_name{$id & BCDE_FORMAT};
2388		2569
2389	if ($json) {	2570	if ($json) {
2390	$element{$id} = [$format, $name];	2571	push @element, [$class, $id * 1, $format, $name];
2391	} else {	2572	} else {
		2573	$id = sprintf "%08x", $id;
2392	printf "%-9s %-12s %s\n", $id, $format, $name;	2574	printf "%-9s %-12s %s\n", $id, $format, $name;
		2575	}
2393	}	2576	}
2394	}	2577	}
2395	print "\n" unless $json;	2578	print "\n" unless $json;
2396		2579
2397	prjson {	2580	prjson {
2398	version => $JSON_VERSION,	2581	version => $JSON_VERSION,
2399	element => \%element,	2582	element => \@element,
		2583	class => \@bcde_typeclass,
2400	} if $json;	2584	} if $json;
2401		2585
2402	},	2586	},
2403		2587
2404	export => sub {	2588	export => sub {
…		…
2430	"import-regf" => sub {	2614	"import-regf" => sub {
2431	regf_save shift, rdjson;	2615	regf_save shift, rdjson;
2432	},	2616	},
2433		2617
2434	lsblk => sub {	2618	lsblk => sub {
		2619	my $json = $_[0] eq "--json";
		2620
		2621	my $lsblk = lsblk;
		2622
		2623	if ($json) {
		2624	prjson $lsblk;
		2625	} else {
2435	printf "%-10s %-8.8s %-6.6s %-3s %s\n", "DEVICE", "LABEL", "FSTYPE", "PT", "DEVICE DESCRIPTOR";	2626	printf "%-10s %-8.8s %-6.6s %-3s %s\n", "DEVICE", "LABEL", "FSTYPE", "PT", "DEVICE DESCRIPTOR";
2436		2627	for my $dev (@$lsblk) {
2437	my $lsblk = $json_coder->decode (scalar qx<lsblk --json -o PATH,KNAME,TYPE,PTTYPE,PTUUID,PARTUUID,LABEL,FSTYPE>);	2628	for my $bcd ($dev->{bcd_device}, $dev->{bcd_legacy_device}) {
2438
2439	for my $dev (@{ $lsblk->{blockdevices} }) {
2440	my $pr = sub {
2441	printf "%-10s %-8.8s %-6.6s %-3s %s\n",	2629	printf "%-10s %-8.8s %-6.6s %-3s %s\n",
2442	$dev->{path}, $dev->{label}, $dev->{fstype}, $dev->{pttype}, $_[0];	2630	$dev->{path}, $dev->{label}, $dev->{fstype}, $dev->{pttype}, $bcd
2443	};
2444
2445	if ($dev->{type} eq "part") {
2446	if ($dev->{pttype} eq "gpt") {
2447	$pr->("partition=<null>,harddisk,gpt,$dev->{ptuuid},$dev->{partuuid}");
2448	} elsif ($dev->{pttype} eq "dos") { # why not "mbr" :(
2449	if ($dev->{partuuid} =~ /^([0-9a-f]{8})-([0-9a-f]{2})\z/i) {
2450	my ($diskid, $partno) = ($1, hex $2);
2451	$pr->("legacypartition=<null>,harddisk,mbr,$diskid,$partno");
2452	if (open my $fh, "/sys/class/block/$dev->{kname}/start") {
2453	my $start = 512 * readline $fh;
2454	$pr->("partition=<null>,harddisk,mbr,$diskid,$start");
2455	}	2631	if $bcd;
2456	}
2457	}	2632	}
2458	}	2633	}
2459	}	2634	}
2460	},	2635	},
		2636
		2637	"bcd-device" => sub {
		2638	prdev shift, "bcd_device";
		2639	},
		2640
		2641	"bcd-legacy-device" => sub {
		2642	prdev shift, "bcd_legacy_device";
		2643	},
		2644
		2645	version => sub {
		2646	print "\n",
		2647	"PBCDEDIT version $VERSION, copyright 2019 Marc A. Lehmann <pbcdedit\@schmorp.de>.\n",
		2648	"JSON schema version: $JSON_VERSION\n",
		2649	"Licensed under the GNU General Public License Version 3.0, or any later version.\n",
		2650	"\n",
		2651	$CHANGELOG,
		2652	"\n";
		2653	},
2461	);	2654	);
2462		2655
2463	my $cmd = shift;	2656	my $cmd = shift;
2464		2657
2465	unless (exists $CMD{$cmd}) {	2658	unless (exists $CMD{$cmd}) {

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