xref: /freebsd/contrib/file/magic/Magdir/linux (revision 2f513db72b034fd5ef7f080b11be5c711c15186a)
1
2#------------------------------------------------------------------------------
3# $File: linux,v 1.68 2019/09/11 21:20:56 christos Exp $
4# linux:  file(1) magic for Linux files
5#
6# Values for Linux/i386 binaries, from Daniel Quinlan <quinlan@yggdrasil.com>
7# The following basic Linux magic is useful for reference, but using
8# "long" magic is a better practice in order to avoid collisions.
9#
10# 2	leshort		100		Linux/i386
11# >0	leshort		0407		impure executable (OMAGIC)
12# >0	leshort		0410		pure executable (NMAGIC)
13# >0	leshort		0413		demand-paged executable (ZMAGIC)
14# >0	leshort		0314		demand-paged executable (QMAGIC)
15#
160	lelong		0x00640107	Linux/i386 impure executable (OMAGIC)
17>16	lelong		0		\b, stripped
180	lelong		0x00640108	Linux/i386 pure executable (NMAGIC)
19>16	lelong		0		\b, stripped
200	lelong		0x0064010b	Linux/i386 demand-paged executable (ZMAGIC)
21>16	lelong		0		\b, stripped
220	lelong		0x006400cc	Linux/i386 demand-paged executable (QMAGIC)
23>16	lelong		0		\b, stripped
24#
250	string		\007\001\000	Linux/i386 object file
26>20	lelong		>0x1020		\b, DLL library
27# Linux-8086 stuff:
280	string		\01\03\020\04	Linux-8086 impure executable
29>28	long		!0		not stripped
300	string		\01\03\040\04	Linux-8086 executable
31>28	long		!0		not stripped
32#
330	string		\243\206\001\0	Linux-8086 object file
34#
350	string		\01\03\020\20	Minix-386 impure executable
36>28	long		!0		not stripped
370	string		\01\03\040\20	Minix-386 executable
38>28	long		!0		not stripped
390	string		\01\03\04\20	Minix-386 NSYM/GNU executable
40>28	long		!0		not stripped
41# core dump file, from Bill Reynolds <bill@goshawk.lanl.gov>
42216	lelong		0421		Linux/i386 core file
43!:strength / 2
44>220	string		>\0		of '%s'
45>200	lelong		>0		(signal %d)
46#
47# LILO boot/chain loaders, from Daniel Quinlan <quinlan@yggdrasil.com>
48# this can be overridden by the DOS executable (COM) entry
492	string		LILO		Linux/i386 LILO boot/chain loader
50#
51# Linux make config build file, from Ole Aamot <oka@oka.no>
52# Updated by Ken Sharp
5328	string		make\ config		Linux make config build file (old)
5449	search/70	Kernel\ Configuration	Linux make config build file
55
56#
57# PSF fonts, from H. Peter Anvin <hpa@yggdrasil.com>
58# Updated by Adam Buchbinder <adam.buchbinder@gmail.com>
59# See: https://www.win.tue.nl/~aeb/linux/kbd/font-formats-1.html
600	leshort		0x0436		Linux/i386 PC Screen Font v1 data,
61>2	byte&0x01	0		256 characters,
62>2	byte&0x01	!0		512 characters,
63>2	byte&0x02	0		no directory,
64>2	byte&0x02	!0		Unicode directory,
65>3	byte		>0		8x%d
660	string		\x72\xb5\x4a\x86\x00\x00 Linux/i386 PC Screen Font v2 data,
67>16	lelong		x		%d characters,
68>12	lelong&0x01	0		no directory,
69>12	lelong&0x01	!0		Unicode directory,
70>24	lelong		x		%d
71>28	lelong		x		\bx%d
72
73# Linux swap file, from Daniel Quinlan <quinlan@yggdrasil.com>
744086	string		SWAP-SPACE	Linux/i386 swap file
75# From: Jeff Bailey <jbailey@ubuntu.com>
76# Linux swap file with swsusp1 image, from Jeff Bailey <jbailey@ubuntu.com>
774076	string		SWAPSPACE2S1SUSPEND	Linux/i386 swap file (new style) with SWSUSP1 image
78# From: James Hunt <james.hunt@ubuntu.com>
794076    string          SWAPSPACE2LINHIB0001    Linux/i386 swap file (new style) (compressed hibernate)
80# according to man page of mkswap (8) March 1999
81# volume label and UUID Russell Coker
82# https://etbe.coker.com.au/2008/07/08/label-vs-uuid-vs-device/
834086	string		SWAPSPACE2	Linux/i386 swap file (new style),
84>0x400	long		x		version %d (4K pages),
85>0x404	long		x		size %d pages,
86>1052	string		\0		no label,
87>1052	string		>\0		LABEL=%s,
88>0x40c	belong		x		UUID=%08x
89>0x410	beshort		x		\b-%04x
90>0x412	beshort		x		\b-%04x
91>0x414	beshort		x		\b-%04x
92>0x416	belong		x		\b-%08x
93>0x41a	beshort		x		\b%04x
94# From Daniel Novotny <dnovotny@redhat.com>
95# swap file for PowerPC
9665526	string		SWAPSPACE2	Linux/ppc swap file
97>0x400	long		x		version %d,
98>0x404	long		x		size %d pages,
99>1052	string		\0		no label,
100>1052	string		>\0		LABEL=%s,
101>0x40c	belong		x		UUID=%08x
102>0x410	beshort		x		\b-%04x
103>0x412	beshort		x		\b-%04x
104>0x414	beshort		x		\b-%04x
105>0x416	belong		x		\b-%08x
106>0x41a	beshort		x		\b%04x
10716374	string		SWAPSPACE2	Linux/ia64 swap file
108#
109# Linux kernel boot images, from Albert Cahalan <acahalan@cs.uml.edu>
110# and others such as Axel Kohlmeyer <akohlmey@rincewind.chemie.uni-ulm.de>
111# and Nicolas Lichtmaier <nick@debian.org>
112# All known start with: b8 c0 07 8e d8 b8 00 90 8e c0 b9 00 01 29 f6 29
113# Linux kernel boot images (i386 arch) (Wolfram Kleff)
114# URL: https://www.kernel.org/doc/Documentation/x86/boot.txt
115514	string		HdrS		Linux kernel
116!:strength + 55
117# often no extension like in linux, vmlinuz, bzimage or memdisk but sometimes
118# Acronis Recovery kernel64.dat and Plop Boot Manager plpbtrom.bin
119# DamnSmallLinux 1.5 damnsmll.lnx
120!:ext	/dat/bin/lnx
121>510	leshort		0xAA55		x86 boot executable
122>>518	leshort		>0x1ff
123>>>529	byte		0		zImage,
124>>>529	byte		1		bzImage,
125>>>526	lelong		>0
126>>>>(526.s+0x200) string	>\0	version %s,
127>>498	leshort		1		RO-rootFS,
128>>498	leshort		0		RW-rootFS,
129>>508	leshort		>0		root_dev 0x%X,
130>>502	leshort		>0		swap_dev 0x%X,
131>>504	leshort		>0		RAMdisksize %u KB,
132>>506	leshort		0xFFFF		Normal VGA
133>>506	leshort		0xFFFE		Extended VGA
134>>506	leshort		0xFFFD		Prompt for Videomode
135>>506	leshort		>0		Video mode %d
136# This also matches new kernels, which were caught above by "HdrS".
1370		belong	0xb8c0078e	Linux kernel
138>0x1e3		string	Loading		version 1.3.79 or older
139>0x1e9		string	Loading		from prehistoric times
140
141# System.map files - Nicolas Lichtmaier <nick@debian.org>
1428	search/1	\ A\ _text	Linux kernel symbol map text
143
144# LSM entries - Nicolas Lichtmaier <nick@debian.org>
1450	search/1	Begin3	Linux Software Map entry text
1460	search/1	Begin4	Linux Software Map entry text (new format)
147
148# From Matt Zimmerman, enhanced for v3 by Matthew Palmer
1490	belong	0x4f4f4f4d	User-mode Linux COW file
150>4	belong	<3		\b, version %d
151>>8	string	>\0		\b, backing file %s
152>4	belong	>2		\b, version %d
153>>32	string	>\0		\b, backing file %s
154
155############################################################################
156# Linux kernel versions
157
1580		string		\xb8\xc0\x07\x8e\xd8\xb8\x00\x90	Linux
159>497		leshort		0		x86 boot sector
160>>514		belong		0x8e	of a kernel from the dawn of time!
161>>514		belong		0x908ed8b4	version 0.99-1.1.42
162>>514		belong		0x908ed8b8	for memtest86
163
164>497		leshort		!0		x86 kernel
165>>504		leshort		>0		RAMdisksize=%u KB
166>>502		leshort		>0		swap=0x%X
167>>508		leshort		>0		root=0x%X
168>>>498		leshort		1		\b-ro
169>>>498		leshort		0		\b-rw
170>>506		leshort		0xFFFF		vga=normal
171>>506		leshort		0xFFFE		vga=extended
172>>506		leshort		0xFFFD		vga=ask
173>>506		leshort		>0		vga=%d
174>>514		belong		0x908ed881	version 1.1.43-1.1.45
175>>514		belong		0x15b281cd
176>>>0xa8e	belong		0x55AA5a5a	version 1.1.46-1.2.13,1.3.0
177>>>0xa99	belong		0x55AA5a5a	version 1.3.1,2
178>>>0xaa3	belong		0x55AA5a5a	version 1.3.3-1.3.30
179>>>0xaa6	belong		0x55AA5a5a	version 1.3.31-1.3.41
180>>>0xb2b	belong		0x55AA5a5a	version 1.3.42-1.3.45
181>>>0xaf7	belong		0x55AA5a5a	version 1.3.46-1.3.72
182>>514		string		HdrS
183>>>518		leshort		>0x1FF
184>>>>529		byte		0		\b, zImage
185>>>>529		byte		1		\b, bzImage
186>>>>(526.s+0x200) string 	>\0		\b, version %s
187
188# Linux boot sector thefts.
1890		belong		0xb8c0078e	Linux
190>0x1e6		belong		0x454c4b53	ELKS Kernel
191>0x1e6		belong		!0x454c4b53	style boot sector
192
193############################################################################
194# Linux S390 kernel image
195# Created by: Jan Kaluza <jkaluza@redhat.com>
1968 string \x02\x00\x00\x18\x60\x00\x00\x50\x02\x00\x00\x68\x60\x00\x00\x50\x40\x40\x40\x40\x40\x40\x40\x40 Linux S390
197>0x00010000 search/b/4096 \x00\x0a\x00\x00\x8b\xad\xcc\xcc
198# 64bit
199>>&0 string \xc1\x00\xef\xe3\xf0\x68\x00\x00 Z10 64bit kernel
200>>&0 string \xc1\x00\xef\xc3\x00\x00\x00\x00 Z9-109 64bit kernel
201>>&0 string \xc0\x00\x20\x00\x00\x00\x00\x00 Z990 64bit kernel
202>>&0 string \x00\x00\x00\x00\x00\x00\x00\x00 Z900 64bit kernel
203# 32bit
204>>&0 string \x81\x00\xc8\x80\x00\x00\x00\x00 Z10 32bit kernel
205>>&0 string \x81\x00\xc8\x80\x00\x00\x00\x00 Z9-109 32bit kernel
206>>&0 string \x80\x00\x20\x00\x00\x00\x00\x00 Z990 32bit kernel
207>>&0 string \x80\x00\x00\x00\x00\x00\x00\x00 Z900 32bit kernel
208
209# Linux ARM compressed kernel image
210# From: Kevin Cernekee <cernekee@gmail.com>
211# Update: Joerg Jenderek
21236	lelong	0x016f2818	Linux kernel ARM boot executable zImage (little-endian)
213# raspian "kernel7.img", Vu+ Ultimo4K "kernel_auto.bin"
214!:ext	img/bin
21536	belong	0x016f2818	Linux kernel ARM boot executable zImage (big-endian)
216
217############################################################################
218# Linux 8086 executable
2190	lelong&0xFF0000FF 0xC30000E9	Linux-Dev86 executable, headerless
220>5	string		.
221>>4	string		>\0		\b, libc version %s
222
2230	lelong&0xFF00FFFF 0x4000301	Linux-8086 executable
224>2	byte&0x01	!0		\b, unmapped zero page
225>2	byte&0x20	0		\b, impure
226>2	byte&0x20	!0
227>>2	byte&0x10	!0		\b, A_EXEC
228>2	byte&0x02	!0		\b, A_PAL
229>2	byte&0x04	!0		\b, A_NSYM
230>2	byte&0x08	!0		\b, A_STAND
231>2	byte&0x40	!0		\b, A_PURE
232>2	byte&0x80	!0		\b, A_TOVLY
233>28     long            !0              \b, not stripped
234>37	string		.
235>>36	string		>\0		\b, libc version %s
236
237# 0	lelong&0xFF00FFFF 0x10000301	ld86 I80386 executable
238# 0	lelong&0xFF00FFFF 0xB000301	ld86 M68K executable
239# 0	lelong&0xFF00FFFF 0xC000301	ld86 NS16K executable
240# 0	lelong&0xFF00FFFF 0x17000301	ld86 SPARC executable
241
242# SYSLINUX boot logo files (from 'ppmtolss16' sources)
243# https://www.syslinux.org/wiki/index.php/SYSLINUX#Display_graphic_from_filename:
244# file extension .lss .16
2450	lelong	=0x1413f33d		SYSLINUX' LSS16 image data
246# syslinux-4.05/mime/image/x-lss16.xml
247!:mime image/x-lss16
248>4	leshort	x			\b, width %d
249>6	leshort	x			\b, height %d
250
2510	string	OOOM			User-Mode-Linux's Copy-On-Write disk image
252>4	belong	x			version %d
253
254# SE Linux policy database
255# From: Mike Frysinger <vapier@gentoo.org>
2560	lelong	0xf97cff8c		SE Linux policy
257>16	lelong	x			v%d
258>20	lelong	1			MLS
259>24	lelong	x			%d symbols
260>28	lelong	x			%d ocons
261
262# Linux Logical Volume Manager (LVM)
263# Emmanuel VARAGNAT <emmanuel.varagnat@guzu.net>
264#
265# System ID, UUID and volume group name are 128 bytes long
266# but they should never be full and initialized with zeros...
267#
268# LVM1
269#
2700x0	string	HM\001		LVM1 (Linux Logical Volume Manager), version 1
271>0x12c	string	>\0		, System ID: %s
272
2730x0	string	HM\002		LVM1 (Linux Logical Volume Manager), version 2
274>0x12c	string	>\0		, System ID: %s
275
276#  LVM2
277#
278# It seems that the label header can be in one the four first sector
279# of the disk... (from _find_labeller in lib/label/label.c of LVM2)
280#
281# 0x200 seems to be the common case
282
2830x218           string  LVM2\ 001      LVM2 PV (Linux Logical Volume Manager)
284# read the offset to add to the start of the header, and the header
285# start in 0x200
286>&(&-12.l-0x21) byte    x
287# display UUID in LVM format + display all 32 bytes (instead of max string length: 31)
288>>&0x0          string  >\x2f          \b, UUID: %.6s
289>>&0x6          string  >\x2f          \b-%.4s
290>>&0xa          string  >\x2f          \b-%.4s
291>>&0xe          string  >\x2f          \b-%.4s
292>>&0x12         string  >\x2f          \b-%.4s
293>>&0x16         string  >\x2f          \b-%.4s
294>>&0x1a         string  >\x2f          \b-%.6s
295>>&0x20         lequad  x              \b, size: %lld
296
2970x018           string  LVM2\ 001      LVM2 PV (Linux Logical Volume Manager)
298>&(&-12.l-0x21) byte    x
299# display UUID in LVM format + display all 32 bytes (instead of max string length: 31)
300>>&0x0          string  >\x2f          \b, UUID: %.6s
301>>&0x6          string  >\x2f          \b-%.4s
302>>&0xa          string  >\x2f          \b-%.4s
303>>&0xe          string  >\x2f          \b-%.4s
304>>&0x12         string  >\x2f          \b-%.4s
305>>&0x16         string  >\x2f          \b-%.4s
306>>&0x1a         string  >\x2f          \b-%.6s
307>>&0x20         lequad  x              \b, size: %lld
308
3090x418           string  LVM2\ 001      LVM2 PV (Linux Logical Volume Manager)
310>&(&-12.l-0x21) byte    x
311# display UUID in LVM format + display all 32 bytes (instead of max string length: 31)
312>>&0x0          string  >\x2f          \b, UUID: %.6s
313>>&0x6          string  >\x2f          \b-%.4s
314>>&0xa          string  >\x2f          \b-%.4s
315>>&0xe          string  >\x2f          \b-%.4s
316>>&0x12         string  >\x2f          \b-%.4s
317>>&0x16         string  >\x2f          \b-%.4s
318>>&0x1a         string  >\x2f          \b-%.6s
319>>&0x20         lequad  x              \b, size: %lld
320
3210x618           string  LVM2\ 001      LVM2 PV (Linux Logical Volume Manager)
322>&(&-12.l-0x21) byte    x
323# display UUID in LVM format + display all 32 bytes (instead of max string length: 31)
324>>&0x0          string  >\x2f          \b, UUID: %.6s
325>>&0x6          string  >\x2f          \b-%.4s
326>>&0xa          string  >\x2f          \b-%.4s
327>>&0xe          string  >\x2f          \b-%.4s
328>>&0x12         string  >\x2f          \b-%.4s
329>>&0x16         string  >\x2f          \b-%.4s
330>>&0x1a         string  >\x2f          \b-%.6s
331>>&0x20         lequad  x              \b, size: %lld
332
333# LVM snapshot
334# from Jason Farrel
3350	string	SnAp	LVM Snapshot (CopyOnWrite store)
336>4	lelong	!0	- valid,
337>4	lelong	0	- invalid,
338>8	lelong	x	version %d,
339>12	lelong	x	chunk_size %d
340
341# SE Linux policy database
3420	lelong	0xf97cff8c		SE Linux policy
343>16	lelong	x			v%d
344>20	lelong	1			MLS
345>24	lelong	x			%d symbols
346>28	lelong	x			%d ocons
347
348# LUKS: Linux Unified Key Setup, On-Disk Format, http://luks.endorphin.org/spec
349# Anthon van der Neut (anthon@mnt.org)
3500	string	LUKS\xba\xbe	LUKS encrypted file,
351>6	beshort x		ver %d
352>8	string	x		[%s,
353>40	string	x		%s,
354>72	string	x		%s]
355>168	string	x		UUID: %s
356
357
358# Summary: Xen saved domain file
359# Created by: Radek Vokal <rvokal@redhat.com>
3600	string		LinuxGuestRecord	Xen saved domain
361>20	search/256	(name
362>>&1	string		x			(name %s)
363
364# Type: Xen, the virtual machine monitor
365# From: Radek Vokal <rvokal@redhat.com>
3660	string		LinuxGuestRecord	Xen saved domain
367#>2	regex		\(name\ [^)]*\)		%s
368>20	search/256	(name			(name
369>>&1	string		x			%s...)
370
371# Systemd journald files
372# See https://www.freedesktop.org/wiki/Software/systemd/journal-files/.
373# From: Zbigniew Jedrzejewski-Szmek <zbyszek@in.waw.pl>
374
375# check magic
3760	string	LPKSHHRH
377# check that state is one of known values
378>16		ubyte&252	0
379# check that each half of three unique id128s is non-zero
380>>24		ubequad		>0
381>>>32		ubequad		>0
382>>>>40		ubequad		>0
383>>>>>48		ubequad		>0
384>>>>>>56	ubequad		>0
385>>>>>>>64	ubequad		>0	Journal file
386!:mime application/octet-stream
387# provide more info
388>>>>>>>>184	leqdate		0	empty
389>>>>>>>>16	ubyte		0	\b, offline
390>>>>>>>>16	ubyte		1	\b, online
391>>>>>>>>16	ubyte		2	\b, archived
392>>>>>>>>8	ulelong&1	1	\b, sealed
393>>>>>>>>12	ulelong&1	1	\b, compressed
394
395# BCache backing and cache devices
396# From: Gabriel de Perthuis <g2p.code@gmail.com>
3970x1008		lequad		8
398>0x1018		string		\xc6\x85\x73\xf6\x4e\x1a\x45\xca\x82\x65\xf5\x7f\x48\xba\x6d\x81	BCache
399>>0x1010	ulequad		0	cache device
400>>0x1010	ulequad		1	backing device
401>>0x1010	ulequad		3	cache device
402>>0x1010	ulequad		4	backing device
403>>0x1048	string		>0	\b, label "%.32s"
404>>0x1028	ubelong		x	\b, uuid %08x
405>>0x102c	ubeshort	x	\b-%04x
406>>0x102e	ubeshort	x	\b-%04x
407>>0x1030	ubeshort	x	\b-%04x
408>>0x1032	ubelong		x	\b-%08x
409>>0x1036	ubeshort	x	\b%04x
410>>0x1038	ubelong		x	\b, set uuid %08x
411>>0x103c	ubeshort	x	\b-%04x
412>>0x103e	ubeshort	x	\b-%04x
413>>0x1040	ubeshort	x	\b-%04x
414>>0x1042	ubelong		x	\b-%08x
415>>0x1046	ubeshort	x	\b%04x
416
417# Linux device tree:
418# File format description can be found in the Linux kernel sources at
419# Documentation/devicetree/booting-without-of.txt
420# From Christoph Biedl
4210		belong		0xd00dfeed
422# structure and strings must be within blob
423>&(8.L)		byte		x
424>>&(12.L)	byte		x
425>>>20		belong		>1	Device Tree Blob version %d
426>>>>4		belong		x	\b, size=%d
427>>>>20		belong		>1
428>>>>>28		belong		x	\b, boot CPU=%d
429>>>>20		belong		>2
430>>>>>32		belong		x	\b, string block size=%d
431>>>>20		belong		>16
432>>>>>36		belong		x	\b, DT structure block size=%d
433
434# glibc locale archive as defined in glibc locale/locarchive.h
4350		lelong		0xde020109	locale archive
436>24		lelong		x		%d strings
437
438# Linux Software RAID (mdadm)
439# Russell Coker <russell@coker.com.au>
4400	name	linuxraid
441>16	belong	x		UUID=%8x:
442>20	belong	x		\b%8x:
443>24	belong	x		\b%8x:
444>28	belong	x		\b%8x
445>32	string	x		name=%s
446>72	lelong	x		level=%d
447>92	lelong	x		disks=%d
448
4494096	lelong	0xa92b4efc	Linux Software RAID
450>4100	lelong	x		version 1.2 (%d)
451>4096	use	linuxraid
452
4530	lelong	0xa92b4efc	Linux Software RAID
454>4	lelong	x		version 1.1 (%d)
455>0	use	linuxraid
456
457# Summary:     Database file for mlocate
458# Description: A database file as used by mlocate, a fast implementation
459#              of locate/updatedb. It uses merging to reuse the existing
460#              database and avoid rereading most of the filesystem. It's
461#              the default version of locate on Arch Linux (and others).
462# File path:   /var/lib/mlocate/mlocate.db by default (but configurable)
463# Site:        https://fedorahosted.org/mlocate/
464# Format docs: https://linux.die.net/man/5/mlocate.db
465# Type: mlocate database file
466# URL:  https://fedorahosted.org/mlocate/
467# From: Wander Nauta <info@wandernauta.nl>
4680		string		\0mlocate	mlocate database
469>12		byte		x		\b, version %d
470>13		byte		1		\b, require visibility
471>16		string		x		\b, root %s
472
473# Dump files for iproute2 tool. Generated by the "ip r|a save" command. URL:
474# https://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2
475# From: Pavel Emelyanov <xemul@parallels.com>
4760		lelong		0x45311224	iproute2 routes dump
4770		lelong		0x47361222	iproute2 addresses dump
478
479# Image and service files for CRIU tool.
480# URL: https://criu.org
481# From: Pavel Emelyanov <xemul@parallels.com>
4820		lelong		0x54564319	CRIU image file v1.1
4830		lelong		0x55105940	CRIU service file
4840		lelong		0x58313116	CRIU inventory
485
486# Kdump compressed dump files
487# https://sourceforge.net/p/makedumpfile/code/ci/master/tree/IMPLEMENTATION
488
4890		string		KDUMP          	Kdump compressed dump
490>8		long		x		v%d
491>12		string		>\0		\b, system %s
492>77		string		>\0		\b, node %s
493>142		string		>\0		\b, release %s
494>207		string		>\0		\b, version %s
495>272		string		>\0		\b, machine %s
496>337		string		>\0		\b, domain %s
497
498# Device Tree files
4990		search/1024	/dts-v1/	Device Tree File (v1)
500# beat c code
501!:strength +14
502