xref: /freebsd/contrib/file/magic/Magdir/linux (revision cddbc3b40812213ff00041f79174cac0be360a2a)
1
2#------------------------------------------------------------------------------
3# $File: linux,v 1.65 2018/07/16 12:32:08 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: http://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# http://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)
114514	string		HdrS		Linux kernel
115!:strength + 55
116>510	leshort		0xAA55		x86 boot executable
117>>518	leshort		>0x1ff
118>>>529	byte		0		zImage,
119>>>529	byte		1		bzImage,
120>>>526	lelong		>0
121>>>>(526.s+0x200) string	>\0	version %s,
122>>498	leshort		1		RO-rootFS,
123>>498	leshort		0		RW-rootFS,
124>>508	leshort		>0		root_dev 0x%X,
125>>502	leshort		>0		swap_dev 0x%X,
126>>504	leshort		>0		RAMdisksize %u KB,
127>>506	leshort		0xFFFF		Normal VGA
128>>506	leshort		0xFFFE		Extended VGA
129>>506	leshort		0xFFFD		Prompt for Videomode
130>>506	leshort		>0		Video mode %d
131# This also matches new kernels, which were caught above by "HdrS".
1320		belong	0xb8c0078e	Linux kernel
133>0x1e3		string	Loading		version 1.3.79 or older
134>0x1e9		string	Loading		from prehistoric times
135
136# System.map files - Nicolas Lichtmaier <nick@debian.org>
1378	search/1	\ A\ _text	Linux kernel symbol map text
138
139# LSM entries - Nicolas Lichtmaier <nick@debian.org>
1400	search/1	Begin3	Linux Software Map entry text
1410	search/1	Begin4	Linux Software Map entry text (new format)
142
143# From Matt Zimmerman, enhanced for v3 by Matthew Palmer
1440	belong	0x4f4f4f4d	User-mode Linux COW file
145>4	belong	<3		\b, version %d
146>>8	string	>\0		\b, backing file %s
147>4	belong	>2		\b, version %d
148>>32	string	>\0		\b, backing file %s
149
150############################################################################
151# Linux kernel versions
152
1530		string		\xb8\xc0\x07\x8e\xd8\xb8\x00\x90	Linux
154>497		leshort		0		x86 boot sector
155>>514		belong		0x8e	of a kernel from the dawn of time!
156>>514		belong		0x908ed8b4	version 0.99-1.1.42
157>>514		belong		0x908ed8b8	for memtest86
158
159>497		leshort		!0		x86 kernel
160>>504		leshort		>0		RAMdisksize=%u KB
161>>502		leshort		>0		swap=0x%X
162>>508		leshort		>0		root=0x%X
163>>>498		leshort		1		\b-ro
164>>>498		leshort		0		\b-rw
165>>506		leshort		0xFFFF		vga=normal
166>>506		leshort		0xFFFE		vga=extended
167>>506		leshort		0xFFFD		vga=ask
168>>506		leshort		>0		vga=%d
169>>514		belong		0x908ed881	version 1.1.43-1.1.45
170>>514		belong		0x15b281cd
171>>>0xa8e	belong		0x55AA5a5a	version 1.1.46-1.2.13,1.3.0
172>>>0xa99	belong		0x55AA5a5a	version 1.3.1,2
173>>>0xaa3	belong		0x55AA5a5a	version 1.3.3-1.3.30
174>>>0xaa6	belong		0x55AA5a5a	version 1.3.31-1.3.41
175>>>0xb2b	belong		0x55AA5a5a	version 1.3.42-1.3.45
176>>>0xaf7	belong		0x55AA5a5a	version 1.3.46-1.3.72
177>>514		string		HdrS
178>>>518		leshort		>0x1FF
179>>>>529		byte		0		\b, zImage
180>>>>529		byte		1		\b, bzImage
181>>>>(526.s+0x200) string 	>\0		\b, version %s
182
183# Linux boot sector thefts.
1840		belong		0xb8c0078e	Linux
185>0x1e6		belong		0x454c4b53	ELKS Kernel
186>0x1e6		belong		!0x454c4b53	style boot sector
187
188############################################################################
189# Linux S390 kernel image
190# Created by: Jan Kaluza <jkaluza@redhat.com>
1918 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
192>0x00010000 search/b/4096 \x00\x0a\x00\x00\x8b\xad\xcc\xcc
193# 64bit
194>>&0 string \xc1\x00\xef\xe3\xf0\x68\x00\x00 Z10 64bit kernel
195>>&0 string \xc1\x00\xef\xc3\x00\x00\x00\x00 Z9-109 64bit kernel
196>>&0 string \xc0\x00\x20\x00\x00\x00\x00\x00 Z990 64bit kernel
197>>&0 string \x00\x00\x00\x00\x00\x00\x00\x00 Z900 64bit kernel
198# 32bit
199>>&0 string \x81\x00\xc8\x80\x00\x00\x00\x00 Z10 32bit kernel
200>>&0 string \x81\x00\xc8\x80\x00\x00\x00\x00 Z9-109 32bit kernel
201>>&0 string \x80\x00\x20\x00\x00\x00\x00\x00 Z990 32bit kernel
202>>&0 string \x80\x00\x00\x00\x00\x00\x00\x00 Z900 32bit kernel
203
204# Linux ARM compressed kernel image
205# From: Kevin Cernekee <cernekee@gmail.com>
20636	lelong	0x016f2818	Linux kernel ARM boot executable zImage (little-endian)
20736	belong	0x016f2818	Linux kernel ARM boot executable zImage (big-endian)
208
209############################################################################
210# Linux 8086 executable
2110	lelong&0xFF0000FF 0xC30000E9	Linux-Dev86 executable, headerless
212>5	string		.
213>>4	string		>\0		\b, libc version %s
214
2150	lelong&0xFF00FFFF 0x4000301	Linux-8086 executable
216>2	byte&0x01	!0		\b, unmapped zero page
217>2	byte&0x20	0		\b, impure
218>2	byte&0x20	!0
219>>2	byte&0x10	!0		\b, A_EXEC
220>2	byte&0x02	!0		\b, A_PAL
221>2	byte&0x04	!0		\b, A_NSYM
222>2	byte&0x08	!0		\b, A_STAND
223>2	byte&0x40	!0		\b, A_PURE
224>2	byte&0x80	!0		\b, A_TOVLY
225>28     long            !0              \b, not stripped
226>37	string		.
227>>36	string		>\0		\b, libc version %s
228
229# 0	lelong&0xFF00FFFF 0x10000301	ld86 I80386 executable
230# 0	lelong&0xFF00FFFF 0xB000301	ld86 M68K executable
231# 0	lelong&0xFF00FFFF 0xC000301	ld86 NS16K executable
232# 0	lelong&0xFF00FFFF 0x17000301	ld86 SPARC executable
233
234# SYSLINUX boot logo files (from 'ppmtolss16' sources)
235# http://www.syslinux.org/wiki/index.php/SYSLINUX#Display_graphic_from_filename:
236# file extension .lss .16
2370	lelong	=0x1413f33d		SYSLINUX' LSS16 image data
238# syslinux-4.05/mime/image/x-lss16.xml
239!:mime image/x-lss16
240>4	leshort	x			\b, width %d
241>6	leshort	x			\b, height %d
242
2430	string	OOOM			User-Mode-Linux's Copy-On-Write disk image
244>4	belong	x			version %d
245
246# SE Linux policy database
247# From: Mike Frysinger <vapier@gentoo.org>
2480	lelong	0xf97cff8c		SE Linux policy
249>16	lelong	x			v%d
250>20	lelong	1			MLS
251>24	lelong	x			%d symbols
252>28	lelong	x			%d ocons
253
254# Linux Logical Volume Manager (LVM)
255# Emmanuel VARAGNAT <emmanuel.varagnat@guzu.net>
256#
257# System ID, UUID and volume group name are 128 bytes long
258# but they should never be full and initialized with zeros...
259#
260# LVM1
261#
2620x0	string	HM\001		LVM1 (Linux Logical Volume Manager), version 1
263>0x12c	string	>\0		, System ID: %s
264
2650x0	string	HM\002		LVM1 (Linux Logical Volume Manager), version 2
266>0x12c	string	>\0		, System ID: %s
267
268#  LVM2
269#
270# It seems that the label header can be in one the four first sector
271# of the disk... (from _find_labeller in lib/label/label.c of LVM2)
272#
273# 0x200 seems to be the common case
274
2750x218           string  LVM2\ 001      LVM2 PV (Linux Logical Volume Manager)
276# read the offset to add to the start of the header, and the header
277# start in 0x200
278>&(&-12.l-0x21) byte    x
279# display UUID in LVM format + display all 32 bytes (instead of max string length: 31)
280>>&0x0          string  >\x2f          \b, UUID: %.6s
281>>&0x6          string  >\x2f          \b-%.4s
282>>&0xa          string  >\x2f          \b-%.4s
283>>&0xe          string  >\x2f          \b-%.4s
284>>&0x12         string  >\x2f          \b-%.4s
285>>&0x16         string  >\x2f          \b-%.4s
286>>&0x1a         string  >\x2f          \b-%.6s
287>>&0x20         lequad  x              \b, size: %lld
288
2890x018           string  LVM2\ 001      LVM2 PV (Linux Logical Volume Manager)
290>&(&-12.l-0x21) byte    x
291# display UUID in LVM format + display all 32 bytes (instead of max string length: 31)
292>>&0x0          string  >\x2f          \b, UUID: %.6s
293>>&0x6          string  >\x2f          \b-%.4s
294>>&0xa          string  >\x2f          \b-%.4s
295>>&0xe          string  >\x2f          \b-%.4s
296>>&0x12         string  >\x2f          \b-%.4s
297>>&0x16         string  >\x2f          \b-%.4s
298>>&0x1a         string  >\x2f          \b-%.6s
299>>&0x20         lequad  x              \b, size: %lld
300
3010x418           string  LVM2\ 001      LVM2 PV (Linux Logical Volume Manager)
302>&(&-12.l-0x21) byte    x
303# display UUID in LVM format + display all 32 bytes (instead of max string length: 31)
304>>&0x0          string  >\x2f          \b, UUID: %.6s
305>>&0x6          string  >\x2f          \b-%.4s
306>>&0xa          string  >\x2f          \b-%.4s
307>>&0xe          string  >\x2f          \b-%.4s
308>>&0x12         string  >\x2f          \b-%.4s
309>>&0x16         string  >\x2f          \b-%.4s
310>>&0x1a         string  >\x2f          \b-%.6s
311>>&0x20         lequad  x              \b, size: %lld
312
3130x618           string  LVM2\ 001      LVM2 PV (Linux Logical Volume Manager)
314>&(&-12.l-0x21) byte    x
315# display UUID in LVM format + display all 32 bytes (instead of max string length: 31)
316>>&0x0          string  >\x2f          \b, UUID: %.6s
317>>&0x6          string  >\x2f          \b-%.4s
318>>&0xa          string  >\x2f          \b-%.4s
319>>&0xe          string  >\x2f          \b-%.4s
320>>&0x12         string  >\x2f          \b-%.4s
321>>&0x16         string  >\x2f          \b-%.4s
322>>&0x1a         string  >\x2f          \b-%.6s
323>>&0x20         lequad  x              \b, size: %lld
324
325# LVM snapshot
326# from Jason Farrel
3270	string	SnAp	LVM Snapshot (CopyOnWrite store)
328>4	lelong	!0	- valid,
329>4	lelong	0	- invalid,
330>8	lelong	x	version %d,
331>12	lelong	x	chunk_size %d
332
333# SE Linux policy database
3340	lelong	0xf97cff8c		SE Linux policy
335>16	lelong	x			v%d
336>20	lelong	1			MLS
337>24	lelong	x			%d symbols
338>28	lelong	x			%d ocons
339
340# LUKS: Linux Unified Key Setup, On-Disk Format, http://luks.endorphin.org/spec
341# Anthon van der Neut (anthon@mnt.org)
3420	string	LUKS\xba\xbe	LUKS encrypted file,
343>6	beshort x		ver %d
344>8	string	x		[%s,
345>40	string	x		%s,
346>72	string	x		%s]
347>168	string	x		UUID: %s
348
349
350# Summary: Xen saved domain file
351# Created by: Radek Vokal <rvokal@redhat.com>
3520	string		LinuxGuestRecord	Xen saved domain
353>20	search/256	(name
354>>&1	string		x			(name %s)
355
356# Type: Xen, the virtual machine monitor
357# From: Radek Vokal <rvokal@redhat.com>
3580	string		LinuxGuestRecord	Xen saved domain
359#>2	regex		\(name\ [^)]*\)		%s
360>20	search/256	(name			(name
361>>&1	string		x			%s...)
362
363# Systemd journald files
364# See http://www.freedesktop.org/wiki/Software/systemd/journal-files/.
365# From: Zbigniew Jedrzejewski-Szmek <zbyszek@in.waw.pl>
366
367# check magic
3680	string	LPKSHHRH
369# check that state is one of known values
370>16		ubyte&252	0
371# check that each half of three unique id128s is non-zero
372>>24		ubequad		>0
373>>>32		ubequad		>0
374>>>>40		ubequad		>0
375>>>>>48		ubequad		>0
376>>>>>>56	ubequad		>0
377>>>>>>>64	ubequad		>0	Journal file
378!:mime application/octet-stream
379# provide more info
380>>>>>>>>184	leqdate		0	empty
381>>>>>>>>16	ubyte		0	\b, offline
382>>>>>>>>16	ubyte		1	\b, online
383>>>>>>>>16	ubyte		2	\b, archived
384>>>>>>>>8	ulelong&1	1	\b, sealed
385>>>>>>>>12	ulelong&1	1	\b, compressed
386
387# BCache backing and cache devices
388# From: Gabriel de Perthuis <g2p.code@gmail.com>
3890x1008		lequad		8
390>0x1018		string		\xc6\x85\x73\xf6\x4e\x1a\x45\xca\x82\x65\xf5\x7f\x48\xba\x6d\x81	BCache
391>>0x1010	ulequad		0	cache device
392>>0x1010	ulequad		1	backing device
393>>0x1010	ulequad		3	cache device
394>>0x1010	ulequad		4	backing device
395>>0x1048	string		>0	\b, label "%.32s"
396>>0x1028	ubelong		x	\b, uuid %08x
397>>0x102c	ubeshort	x	\b-%04x
398>>0x102e	ubeshort	x	\b-%04x
399>>0x1030	ubeshort	x	\b-%04x
400>>0x1032	ubelong		x	\b-%08x
401>>0x1036	ubeshort	x	\b%04x
402>>0x1038	ubelong		x	\b, set uuid %08x
403>>0x103c	ubeshort	x	\b-%04x
404>>0x103e	ubeshort	x	\b-%04x
405>>0x1040	ubeshort	x	\b-%04x
406>>0x1042	ubelong		x	\b-%08x
407>>0x1046	ubeshort	x	\b%04x
408
409# Linux device tree:
410# File format description can be found in the Linux kernel sources at
411# Documentation/devicetree/booting-without-of.txt
412# From Christoph Biedl
4130		belong		0xd00dfeed
414# structure and strings must be within blob
415>&(8.L)		byte		x
416>>&(12.L)	byte		x
417>>>20		belong		>1	Device Tree Blob version %d
418>>>>4		belong		x	\b, size=%d
419>>>>20		belong		>1
420>>>>>28		belong		x	\b, boot CPU=%d
421>>>>20		belong		>2
422>>>>>32		belong		x	\b, string block size=%d
423>>>>20		belong		>16
424>>>>>36		belong		x	\b, DT structure block size=%d
425
426# glibc locale archive as defined in glibc locale/locarchive.h
4270		lelong		0xde020109	locale archive
428>24		lelong		x		%d strings
429
430# Linux Software RAID (mdadm)
431# Russell Coker <russell@coker.com.au>
4320	name	linuxraid
433>16	belong	x		UUID=%8x:
434>20	belong	x		\b%8x:
435>24	belong	x		\b%8x:
436>28	belong	x		\b%8x
437>32	string	x		name=%s
438>72	lelong	x		level=%d
439>92	lelong	x		disks=%d
440
4414096	lelong	0xa92b4efc	Linux Software RAID
442>4100	lelong	x		version 1.2 (%d)
443>4096	use	linuxraid
444
4450	lelong	0xa92b4efc	Linux Software RAID
446>4	lelong	x		version 1.1 (%d)
447>0	use	linuxraid
448
449# Summary:     Database file for mlocate
450# Description: A database file as used by mlocate, a fast implementation
451#              of locate/updatedb. It uses merging to reuse the existing
452#              database and avoid rereading most of the filesystem. It's
453#              the default version of locate on Arch Linux (and others).
454# File path:   /var/lib/mlocate/mlocate.db by default (but configurable)
455# Site:        https://fedorahosted.org/mlocate/
456# Format docs: http://linux.die.net/man/5/mlocate.db
457# Type: mlocate database file
458# URL:  https://fedorahosted.org/mlocate/
459# From: Wander Nauta <info@wandernauta.nl>
4600		string		\0mlocate	mlocate database
461>12		byte		x		\b, version %d
462>13		byte		1		\b, require visibility
463>16		string		x		\b, root %s
464
465# Dump files for iproute2 tool. Generated by the "ip r|a save" command. URL:
466# https://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2
467# From: Pavel Emelyanov <xemul@parallels.com>
4680		lelong		0x45311224	iproute2 routes dump
4690		lelong		0x47361222	iproute2 addresses dump
470
471# Image and service files for CRIU tool.
472# URL: http://criu.org
473# From: Pavel Emelyanov <xemul@parallels.com>
4740		lelong		0x54564319	CRIU image file v1.1
4750		lelong		0x55105940	CRIU service file
4760		lelong		0x58313116	CRIU inventory
477
478# Kdump compressed dump files
479# http://sourceforge.net/p/makedumpfile/code/ci/master/tree/IMPLEMENTATION
480
4810		string		KDUMP          	Kdump compressed dump
482>8		long		x		v%d
483>12		string		>\0		\b, system %s
484>77		string		>\0		\b, node %s
485>142		string		>\0		\b, release %s
486>207		string		>\0		\b, version %s
487>272		string		>\0		\b, machine %s
488>337		string		>\0		\b, domain %s
489