1 2#------------------------------------------------------------------------------ 3# $File: linux,v 1.77 2021/02/24 23:05:02 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 and hibernate files 74# Linux kernel: include/linux/swap.h 75# util-linux: libblkid/src/superblocks/swap.c 76 77# format v0, unsupported since 2002 780xff6 string SWAP-SPACE Linux old swap file, 4k page size 790x1ff6 string SWAP-SPACE Linux old swap file, 8k page size 800x3ff6 string SWAP-SPACE Linux old swap file, 16k page size 810x7ff6 string SWAP-SPACE Linux old swap file, 32k page size 820xfff6 string SWAP-SPACE Linux old swap file, 64k page size 83 84# format v1, supported since 1998 850 name linux-swap 86>0x400 lelong 1 little endian, version %u, 87>>0x404 lelong x size %u pages, 88>>0x408 lelong x %u bad pages, 89>0x400 belong 1 big endian, version %u, 90>>0x404 belong x size %u pages, 91>>0x408 belong x %u bad pages, 92>0x41c string \0 no label, 93>0x41c string >\0 LABEL=%s, 94>0x40c belong x UUID=%08x 95>0x410 beshort x \b-%04x 96>0x412 beshort x \b-%04x 97>0x414 beshort x \b-%04x 98>0x416 belong x \b-%08x 99>0x41a beshort x \b%04x 100 1010xff6 string SWAPSPACE2 Linux swap file, 4k page size, 102>0 use linux-swap 1030x1ff6 string SWAPSPACE2 Linux swap file, 8k page size, 104>0 use linux-swap 1050x3ff6 string SWAPSPACE2 Linux swap file, 16k page size, 106>0 use linux-swap 1070x7ff6 string SWAPSPACE2 Linux swap file, 32k page size, 108>0 use linux-swap 1090xfff6 string SWAPSPACE2 Linux swap file, 64k page size, 110>0 use linux-swap 111 1120 name linux-hibernate 113>0 string S1SUSPEND \b, with SWSUSP1 image 114>0 string S2SUSPEND \b, with SWSUSP2 image 115>0 string ULSUSPEND \b, with uswsusp image 116>0 string LINHIB0001 \b, with compressed hibernate image 117>0 string \xed\xc3\x02\xe9\x98\x56\xe5\x0c \b, with tuxonice image 118>0 default x \b, with unknown hibernate image 119 1200xfec string SWAPSPACE2 Linux swap file, 4k page size, 121>0 use linux-swap 122>0xff6 use linux-hibernate 1230x1fec string SWAPSPACE2 Linux swap file, 8k page size, 124>0 use linux-swap 125>0x1ff6 use linux-hibernate 1260x3fec string SWAPSPACE2 Linux swap file, 16k page size, 127>0 use linux-swap 128>0x3ff6 use linux-hibernate 1290x7fec string SWAPSPACE2 Linux swap file, 32k page size, 130>0 use linux-swap 131>0x7ff6 use linux-hibernate 1320xffec string SWAPSPACE2 Linux swap file, 64k page size, 133>0 use linux-swap 134>0xfff6 use linux-hibernate 135 136# 137# Linux kernel boot images, from Albert Cahalan <acahalan@cs.uml.edu> 138# and others such as Axel Kohlmeyer <akohlmey@rincewind.chemie.uni-ulm.de> 139# and Nicolas Lichtmaier <nick@debian.org> 140# All known start with: b8 c0 07 8e d8 b8 00 90 8e c0 b9 00 01 29 f6 29 141# Linux kernel boot images (i386 arch) (Wolfram Kleff) 142# URL: https://www.kernel.org/doc/Documentation/x86/boot.txt 143514 string HdrS Linux kernel 144!:strength + 55 145# often no extension like in linux, vmlinuz, bzimage or memdisk but sometimes 146# Acronis Recovery kernel64.dat and Plop Boot Manager plpbtrom.bin 147# DamnSmallLinux 1.5 damnsmll.lnx 148!:ext /dat/bin/lnx 149>510 leshort 0xAA55 x86 boot executable 150>>518 leshort >0x1ff 151>>>529 byte 0 zImage, 152>>>529 byte 1 bzImage, 153>>>526 lelong >0 154>>>>(526.s+0x200) string >\0 version %s, 155>>498 leshort 1 RO-rootFS, 156>>498 leshort 0 RW-rootFS, 157>>508 leshort >0 root_dev 0x%X, 158>>502 leshort >0 swap_dev 0x%X, 159>>504 leshort >0 RAMdisksize %u KB, 160>>506 leshort 0xFFFF Normal VGA 161>>506 leshort 0xFFFE Extended VGA 162>>506 leshort 0xFFFD Prompt for Videomode 163>>506 leshort >0 Video mode %d 164# This also matches new kernels, which were caught above by "HdrS". 1650 belong 0xb8c0078e Linux kernel 166>0x1e3 string Loading version 1.3.79 or older 167>0x1e9 string Loading from prehistoric times 168 169# System.map files - Nicolas Lichtmaier <nick@debian.org> 1708 search/1 \ A\ _text Linux kernel symbol map text 171 172# LSM entries - Nicolas Lichtmaier <nick@debian.org> 1730 search/1 Begin3 Linux Software Map entry text 1740 search/1 Begin4 Linux Software Map entry text (new format) 175 176# From Matt Zimmerman, enhanced for v3 by Matthew Palmer 1770 belong 0x4f4f4f4d User-mode Linux COW file 178>4 belong <3 \b, version %d 179>>8 string >\0 \b, backing file %s 180>4 belong >2 \b, version %d 181>>32 string >\0 \b, backing file %s 182 183############################################################################ 184# Linux kernel versions 185 1860 string \xb8\xc0\x07\x8e\xd8\xb8\x00\x90 Linux 187>497 leshort 0 x86 boot sector 188>>514 belong 0x8e of a kernel from the dawn of time! 189>>514 belong 0x908ed8b4 version 0.99-1.1.42 190>>514 belong 0x908ed8b8 for memtest86 191 192>497 leshort !0 x86 kernel 193>>504 leshort >0 RAMdisksize=%u KB 194>>502 leshort >0 swap=0x%X 195>>508 leshort >0 root=0x%X 196>>>498 leshort 1 \b-ro 197>>>498 leshort 0 \b-rw 198>>506 leshort 0xFFFF vga=normal 199>>506 leshort 0xFFFE vga=extended 200>>506 leshort 0xFFFD vga=ask 201>>506 leshort >0 vga=%d 202>>514 belong 0x908ed881 version 1.1.43-1.1.45 203>>514 belong 0x15b281cd 204>>>0xa8e belong 0x55AA5a5a version 1.1.46-1.2.13,1.3.0 205>>>0xa99 belong 0x55AA5a5a version 1.3.1,2 206>>>0xaa3 belong 0x55AA5a5a version 1.3.3-1.3.30 207>>>0xaa6 belong 0x55AA5a5a version 1.3.31-1.3.41 208>>>0xb2b belong 0x55AA5a5a version 1.3.42-1.3.45 209>>>0xaf7 belong 0x55AA5a5a version 1.3.46-1.3.72 210>>514 string HdrS 211>>>518 leshort >0x1FF 212>>>>529 byte 0 \b, zImage 213>>>>529 byte 1 \b, bzImage 214>>>>(526.s+0x200) string >\0 \b, version %s 215 216# Linux boot sector thefts. 2170 belong 0xb8c0078e Linux 218>0x1e6 belong 0x454c4b53 ELKS Kernel 219>0x1e6 belong !0x454c4b53 style boot sector 220 221############################################################################ 222# Linux S390 kernel image 223# Created by: Jan Kaluza <jkaluza@redhat.com> 2248 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 225>0x00010000 search/b/4096 \x00\x0a\x00\x00\x8b\xad\xcc\xcc 226# 64bit 227>>&0 string \xc1\x00\xef\xe3\xf0\x68\x00\x00 Z10 64bit kernel 228>>&0 string \xc1\x00\xef\xc3\x00\x00\x00\x00 Z9-109 64bit kernel 229>>&0 string \xc0\x00\x20\x00\x00\x00\x00\x00 Z990 64bit kernel 230>>&0 string \x00\x00\x00\x00\x00\x00\x00\x00 Z900 64bit kernel 231# 32bit 232>>&0 string \x81\x00\xc8\x80\x00\x00\x00\x00 Z10 32bit kernel 233>>&0 string \x81\x00\xc8\x80\x00\x00\x00\x00 Z9-109 32bit kernel 234>>&0 string \x80\x00\x20\x00\x00\x00\x00\x00 Z990 32bit kernel 235>>&0 string \x80\x00\x00\x00\x00\x00\x00\x00 Z900 32bit kernel 236 237############################################################################ 238# Linux ARM compressed kernel image 239# From: Kevin Cernekee <cernekee@gmail.com> 240# Update: Joerg Jenderek 2410x24 lelong 0x016f2818 Linux kernel ARM boot executable zImage 242# There are three possible situations: LE, BE with LE bootloader and pure BE. 243# In order to aid telling these apart a new endian flag was added. In order 244# to support kernels before the flag and BE with LE bootloader was added we'll 245# do a negative check against the BE variant of the flag when we see a LE magic. 246>0x30 belong !0x04030201 (little-endian) 247# raspian "kernel7.img", Vu+ Ultimo4K "kernel_auto.bin" 248!:ext img/bin 249>0x30 belong 0x04030201 (big-endian) 2500x24 belong 0x016f2818 Linux kernel ARM boot executable zImage (big-endian) 251 252############################################################################ 253# Linux AARCH64 kernel image 2540x38 lelong 0x644d5241 Linux kernel ARM64 boot executable Image 255>0x18 lelong ^1 \b, little-endian 256>0x18 lelong &1 \b, big-endian 257>0x18 lelong &2 \b, 4K pages 258>0x18 lelong &4 \b, 16K pages 259>0x18 lelong &6 \b, 32K pages 260 261############################################################################ 262# Linux 8086 executable 2630 lelong&0xFF0000FF 0xC30000E9 Linux-Dev86 executable, headerless 264>5 string . 265>>4 string >\0 \b, libc version %s 266 2670 lelong&0xFF00FFFF 0x4000301 Linux-8086 executable 268>2 byte&0x01 !0 \b, unmapped zero page 269>2 byte&0x20 0 \b, impure 270>2 byte&0x20 !0 271>>2 byte&0x10 !0 \b, A_EXEC 272>2 byte&0x02 !0 \b, A_PAL 273>2 byte&0x04 !0 \b, A_NSYM 274>2 byte&0x08 !0 \b, A_STAND 275>2 byte&0x40 !0 \b, A_PURE 276>2 byte&0x80 !0 \b, A_TOVLY 277>28 long !0 \b, not stripped 278>37 string . 279>>36 string >\0 \b, libc version %s 280 281# 0 lelong&0xFF00FFFF 0x10000301 ld86 I80386 executable 282# 0 lelong&0xFF00FFFF 0xB000301 ld86 M68K executable 283# 0 lelong&0xFF00FFFF 0xC000301 ld86 NS16K executable 284# 0 lelong&0xFF00FFFF 0x17000301 ld86 SPARC executable 285 286# SYSLINUX boot logo files (from 'ppmtolss16' sources) 287# https://www.syslinux.org/wiki/index.php/SYSLINUX#Display_graphic_from_filename: 288# file extension .lss .16 2890 lelong =0x1413f33d SYSLINUX' LSS16 image data 290# syslinux-4.05/mime/image/x-lss16.xml 291!:mime image/x-lss16 292>4 leshort x \b, width %d 293>6 leshort x \b, height %d 294 2950 string OOOM User-Mode-Linux's Copy-On-Write disk image 296>4 belong x version %d 297 298# SE Linux policy database 299# From: Mike Frysinger <vapier@gentoo.org> 3000 lelong 0xf97cff8c SE Linux policy 301>16 lelong x v%d 302>20 lelong 1 MLS 303>24 lelong x %d symbols 304>28 lelong x %d ocons 305 306# Linux Logical Volume Manager (LVM) 307# Emmanuel VARAGNAT <emmanuel.varagnat@guzu.net> 308# 309# System ID, UUID and volume group name are 128 bytes long 310# but they should never be full and initialized with zeros... 311# 312# LVM1 313# 3140x0 string/b HM\001 LVM1 (Linux Logical Volume Manager), version 1 315>0x12c string/b >\0 , System ID: %s 316 3170x0 string/b HM\002 LVM1 (Linux Logical Volume Manager), version 2 318>0x12c string/b >\0 , System ID: %s 319 320# LVM2 321# 322# It seems that the label header can be in one the four first sector 323# of the disk... (from _find_labeller in lib/label/label.c of LVM2) 324# 325# 0x200 seems to be the common case 3260 name lvm2 327# display UUID in LVM format + display all 32 bytes (instead of max string length: 31) 328>0x0 string >\x2f \b, UUID: %.6s 329>0x6 string >\x2f \b-%.4s 330>0xa string >\x2f \b-%.4s 331>0xe string >\x2f \b-%.4s 332>0x12 string >\x2f \b-%.4s 333>0x16 string >\x2f \b-%.4s 334>0x1a string >\x2f \b-%.6s 335>0x20 lequad x \b, size: %lld 336 337 338# read the offset to add to the start of the header, and the header 339# start in 0x200 3400x218 string/b LVM2\ 001 LVM2 PV (Linux Logical Volume Manager) 341>&(&-12.l-0x20) use lvm2 342 3430x018 string/b LVM2\ 001 LVM2 PV (Linux Logical Volume Manager) 344>&(&-12.l-0x20) use lvm2 345 3460x418 string/b LVM2\ 001 LVM2 PV (Linux Logical Volume Manager) 347>&(&-12.l-0x20) use lvm2 348 3490x618 string/b LVM2\ 001 LVM2 PV (Linux Logical Volume Manager) 350>&(&-12.l-0x20) use lvm2 351 352# LVM snapshot 353# from Jason Farrel 3540 string SnAp LVM Snapshot (CopyOnWrite store) 355>4 lelong !0 - valid, 356>4 lelong 0 - invalid, 357>8 lelong x version %d, 358>12 lelong x chunk_size %d 359 360# SE Linux policy database 3610 lelong 0xf97cff8c SE Linux policy 362>16 lelong x v%d 363>20 lelong 1 MLS 364>24 lelong x %d symbols 365>28 lelong x %d ocons 366 367# LUKS: Linux Unified Key Setup, On-Disk Format, http://luks.endorphin.org/spec 368# Anthon van der Neut (anthon@mnt.org) 3690 string LUKS\xba\xbe LUKS encrypted file, 370>6 beshort x ver %d 371>8 string x [%s, 372>40 string x %s, 373>72 string x %s] 374>168 string x UUID: %s 375 376 377# Summary: Xen saved domain file 378# Created by: Radek Vokal <rvokal@redhat.com> 3790 string LinuxGuestRecord Xen saved domain 380>20 search/256 (name 381>>&1 string x (name %s) 382 383# Type: Xen, the virtual machine monitor 384# From: Radek Vokal <rvokal@redhat.com> 3850 string LinuxGuestRecord Xen saved domain 386#>2 regex \(name\ [^)]*\) %s 387>20 search/256 (name (name 388>>&1 string x %s...) 389 390# Systemd journald files 391# See https://www.freedesktop.org/wiki/Software/systemd/journal-files/. 392# From: Zbigniew Jedrzejewski-Szmek <zbyszek@in.waw.pl> 393 394# check magic 3950 string LPKSHHRH 396# check that state is one of known values 397>16 ubyte&252 0 398# check that each half of three unique id128s is non-zero 399>>24 ubequad >0 400>>>32 ubequad >0 401>>>>40 ubequad >0 402>>>>>48 ubequad >0 403>>>>>>56 ubequad >0 404>>>>>>>64 ubequad >0 Journal file 405!:mime application/octet-stream 406# provide more info 407>>>>>>>>184 leqdate 0 empty 408>>>>>>>>16 ubyte 0 \b, offline 409>>>>>>>>16 ubyte 1 \b, online 410>>>>>>>>16 ubyte 2 \b, archived 411>>>>>>>>8 ulelong&1 1 \b, sealed 412>>>>>>>>12 ulelong&1 1 \b, compressed 413 414# BCache backing and cache devices 415# From: Gabriel de Perthuis <g2p.code@gmail.com> 4160x1008 lequad 8 417>0x1018 string \xc6\x85\x73\xf6\x4e\x1a\x45\xca\x82\x65\xf5\x7f\x48\xba\x6d\x81 BCache 418>>0x1010 ulequad 0 cache device 419>>0x1010 ulequad 1 backing device 420>>0x1010 ulequad 3 cache device 421>>0x1010 ulequad 4 backing device 422>>0x1048 string >0 \b, label "%.32s" 423>>0x1028 ubelong x \b, uuid %08x 424>>0x102c ubeshort x \b-%04x 425>>0x102e ubeshort x \b-%04x 426>>0x1030 ubeshort x \b-%04x 427>>0x1032 ubelong x \b-%08x 428>>0x1036 ubeshort x \b%04x 429>>0x1038 ubelong x \b, set uuid %08x 430>>0x103c ubeshort x \b-%04x 431>>0x103e ubeshort x \b-%04x 432>>0x1040 ubeshort x \b-%04x 433>>0x1042 ubelong x \b-%08x 434>>0x1046 ubeshort x \b%04x 435 436# Linux device tree: 437# File format description can be found in the Linux kernel sources at 438# Documentation/devicetree/booting-without-of.txt 439# From Christoph Biedl 4400 belong 0xd00dfeed 441# structure must be within blob, strings are omitted to handle devicetrees > 1M 442>&(8.L) byte x 443>>20 belong >1 Device Tree Blob version %d 444>>>4 belong x \b, size=%d 445>>>20 belong >1 446>>>>28 belong x \b, boot CPU=%d 447>>>20 belong >2 448>>>>32 belong x \b, string block size=%d 449>>>20 belong >16 450>>>>36 belong x \b, DT structure block size=%d 451 452# glibc locale archive as defined in glibc locale/locarchive.h 4530 lelong 0xde020109 locale archive 454>24 lelong x %d strings 455 456# Linux Software RAID (mdadm) 457# Russell Coker <russell@coker.com.au> 4580 name linuxraid 459>16 belong x UUID=%8x: 460>20 belong x \b%8x: 461>24 belong x \b%8x: 462>28 belong x \b%8x 463>32 string x name=%s 464>72 lelong x level=%d 465>92 lelong x disks=%d 466 4674096 lelong 0xa92b4efc Linux Software RAID 468>4100 lelong x version 1.2 (%d) 469>4096 use linuxraid 470 4710 lelong 0xa92b4efc Linux Software RAID 472>4 lelong x version 1.1 (%d) 473>0 use linuxraid 474 475# Summary: Database file for mlocate 476# Description: A database file as used by mlocate, a fast implementation 477# of locate/updatedb. It uses merging to reuse the existing 478# database and avoid rereading most of the filesystem. It's 479# the default version of locate on Arch Linux (and others). 480# File path: /var/lib/mlocate/mlocate.db by default (but configurable) 481# Site: https://fedorahosted.org/mlocate/ 482# Format docs: https://linux.die.net/man/5/mlocate.db 483# Type: mlocate database file 484# URL: https://fedorahosted.org/mlocate/ 485# From: Wander Nauta <info@wandernauta.nl> 4860 string \0mlocate mlocate database 487>12 byte x \b, version %d 488>13 byte 1 \b, require visibility 489>16 string x \b, root %s 490 491# Dump files for iproute2 tool. Generated by the "ip r|a save" command. URL: 492# https://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2 493# From: Pavel Emelyanov <xemul@parallels.com> 4940 lelong 0x45311224 iproute2 routes dump 4950 lelong 0x47361222 iproute2 addresses dump 496 497# Image and service files for CRIU tool. 498# URL: https://criu.org 499# From: Pavel Emelyanov <xemul@parallels.com> 5000 lelong 0x54564319 CRIU image file v1.1 5010 lelong 0x55105940 CRIU service file 5020 lelong 0x58313116 CRIU inventory 503 504# Kdump compressed dump files 505# https://sourceforge.net/p/makedumpfile/code/ci/master/tree/IMPLEMENTATION 506 5070 string KDUMP Kdump compressed dump 508>8 long x v%d 509>12 string >\0 \b, system %s 510>77 string >\0 \b, node %s 511>142 string >\0 \b, release %s 512>207 string >\0 \b, version %s 513>272 string >\0 \b, machine %s 514>337 string >\0 \b, domain %s 515 516# Device Tree files 5170 search/1024 /dts-v1/ Device Tree File (v1) 518# beat c code 519!:strength +14 520 521 522# e2fsck undo file 523# David Gilman <davidgilman1@gmail.com> 5240 string E2UNDO02 e2fsck undo file, version 2 525>44 lelong x \b, undo file is 526>>44 lelong&1 0 not finished 527>>44 lelong&1 1 finished 528>48 lelong x \b, undo file features: 529>>48 lelong&1 0 lacks filesystem offset 530>>48 lelong&1 1 has filesystem offset 531>>>64 lequad x at 0x%llx 532 533# ansible vault (does not really belong here) 5340 string $ANSIBLE_VAULT; Ansible Vault 535>&0 regex [0-9]*\.[0-9]* \b, version %s 536>>&0 string ; 537>>>&0 regex [A-Z0-9]* \b, encryption %s 538