linux revision 192348
168349Sobrien#------------------------------------------------------------------------------ 268349Sobrien# linux: file(1) magic for Linux files 368349Sobrien# 468349Sobrien# Values for Linux/i386 binaries, from Daniel Quinlan <quinlan@yggdrasil.com> 568349Sobrien# The following basic Linux magic is useful for reference, but using 668349Sobrien# "long" magic is a better practice in order to avoid collisions. 768349Sobrien# 868349Sobrien# 2 leshort 100 Linux/i386 968349Sobrien# >0 leshort 0407 impure executable (OMAGIC) 1068349Sobrien# >0 leshort 0410 pure executable (NMAGIC) 1168349Sobrien# >0 leshort 0413 demand-paged executable (ZMAGIC) 1268349Sobrien# >0 leshort 0314 demand-paged executable (QMAGIC) 1368349Sobrien# 1468349Sobrien0 lelong 0x00640107 Linux/i386 impure executable (OMAGIC) 1568349Sobrien>16 lelong 0 \b, stripped 1668349Sobrien0 lelong 0x00640108 Linux/i386 pure executable (NMAGIC) 1768349Sobrien>16 lelong 0 \b, stripped 1868349Sobrien0 lelong 0x0064010b Linux/i386 demand-paged executable (ZMAGIC) 1968349Sobrien>16 lelong 0 \b, stripped 2068349Sobrien0 lelong 0x006400cc Linux/i386 demand-paged executable (QMAGIC) 2168349Sobrien>16 lelong 0 \b, stripped 2268349Sobrien# 2368349Sobrien0 string \007\001\000 Linux/i386 object file 2468349Sobrien>20 lelong >0x1020 \b, DLL library 2568349Sobrien# Linux-8086 stuff: 2668349Sobrien0 string \01\03\020\04 Linux-8086 impure executable 2768349Sobrien>28 long !0 not stripped 2868349Sobrien0 string \01\03\040\04 Linux-8086 executable 2968349Sobrien>28 long !0 not stripped 3068349Sobrien# 3168349Sobrien0 string \243\206\001\0 Linux-8086 object file 3268349Sobrien# 3368349Sobrien0 string \01\03\020\20 Minix-386 impure executable 3468349Sobrien>28 long !0 not stripped 3568349Sobrien0 string \01\03\040\20 Minix-386 executable 3668349Sobrien>28 long !0 not stripped 3768349Sobrien# core dump file, from Bill Reynolds <bill@goshawk.lanl.gov> 3868349Sobrien216 lelong 0421 Linux/i386 core file 3968349Sobrien>220 string >\0 of '%s' 4068349Sobrien>200 lelong >0 (signal %d) 4168349Sobrien# 4268349Sobrien# LILO boot/chain loaders, from Daniel Quinlan <quinlan@yggdrasil.com> 4368349Sobrien# this can be overridden by the DOS executable (COM) entry 4468349Sobrien2 string LILO Linux/i386 LILO boot/chain loader 4568349Sobrien# 4668349Sobrien# PSF fonts, from H. Peter Anvin <hpa@yggdrasil.com> 4768349Sobrien0 leshort 0x0436 Linux/i386 PC Screen Font data, 4868349Sobrien>2 byte 0 256 characters, no directory, 4968349Sobrien>2 byte 1 512 characters, no directory, 5068349Sobrien>2 byte 2 256 characters, Unicode directory, 5168349Sobrien>2 byte 3 512 characters, Unicode directory, 5268349Sobrien>3 byte >0 8x%d 5368349Sobrien# Linux swap file, from Daniel Quinlan <quinlan@yggdrasil.com> 5468349Sobrien4086 string SWAP-SPACE Linux/i386 swap file 55159764Sobrien# From: Jeff Bailey <jbailey@ubuntu.com> 56159764Sobrien# Linux swap file with swsusp1 image, from Jeff Bailey <jbailey@ubuntu.com> 57159764Sobrien4076 string SWAPSPACE2S1SUSPEND Linux/i386 swap file (new style) with SWSUSP1 image 58103373Sobrien# according to man page of mkswap (8) March 1999 59103373Sobrien4086 string SWAPSPACE2 Linux/i386 swap file (new style) 60133359Sobrien>0x400 long x %d (4K pages) 61133359Sobrien>0x404 long x size %d pages 62159764Sobrien>>4086 string SWAPSPACE2 63159764Sobrien>>>1052 string >\0 Label %s 6468349Sobrien# ECOFF magic for OSF/1 and Linux (only tested under Linux though) 6568349Sobrien# 6668349Sobrien# from Erik Troan (ewt@redhat.com) examining od dumps, so this 6768349Sobrien# could be wrong 6868349Sobrien# updated by David Mosberger (davidm@azstarnet.com) based on 6968349Sobrien# GNU BFD and MIPS info found below. 7068349Sobrien# 7168349Sobrien0 leshort 0x0183 ECOFF alpha 7268349Sobrien>24 leshort 0407 executable 7368349Sobrien>24 leshort 0410 pure 7468349Sobrien>24 leshort 0413 demand paged 7568349Sobrien>8 long >0 not stripped 7668349Sobrien>8 long 0 stripped 7768349Sobrien>23 leshort >0 - version %ld. 7868349Sobrien# 7968349Sobrien# Linux kernel boot images, from Albert Cahalan <acahalan@cs.uml.edu> 8068349Sobrien# and others such as Axel Kohlmeyer <akohlmey@rincewind.chemie.uni-ulm.de> 8168349Sobrien# and Nicol�s Lichtmaier <nick@debian.org> 8268349Sobrien# All known start with: b8 c0 07 8e d8 b8 00 90 8e c0 b9 00 01 29 f6 29 83133359Sobrien# Linux kernel boot images (i386 arch) (Wolfram Kleff) 84133359Sobrien514 string HdrS Linux kernel 85133359Sobrien>510 leshort 0xAA55 x86 boot executable 86186690Sobrien>>518 leshort >0x1ff 87192348Sdelphij>>>529 byte 0 zImage, 88133359Sobrien>>>529 byte 1 bzImage, 89133359Sobrien>>>(526.s+0x200) string >\0 version %s, 90133359Sobrien>>498 leshort 1 RO-rootFS, 91133359Sobrien>>498 leshort 0 RW-rootFS, 92133359Sobrien>>508 leshort >0 root_dev 0x%X, 93133359Sobrien>>502 leshort >0 swap_dev 0x%X, 94133359Sobrien>>504 leshort >0 RAMdisksize %u KB, 95133359Sobrien>>506 leshort 0xFFFF Normal VGA 96133359Sobrien>>506 leshort 0xFFFE Extended VGA 97133359Sobrien>>506 leshort 0xFFFD Prompt for Videomode 98133359Sobrien>>506 leshort >0 Video mode %d 9968349Sobrien# This also matches new kernels, which were caught above by "HdrS". 10068349Sobrien0 belong 0xb8c0078e Linux kernel 10168349Sobrien>0x1e3 string Loading version 1.3.79 or older 10268349Sobrien>0x1e9 string Loading from prehistoric times 103133359Sobrien 104133359Sobrien# System.map files - Nicol�s Lichtmaier <nick@debian.org> 105186690Sobrien8 search/1 \ A\ _text Linux kernel symbol map text 106133359Sobrien 107133359Sobrien# LSM entries - Nicol�s Lichtmaier <nick@debian.org> 108186690Sobrien0 search/1 Begin3 Linux Software Map entry text 109186690Sobrien0 search/1 Begin4 Linux Software Map entry text (new format) 110103373Sobrien 111186690Sobrien# From Matt Zimmerman, enhanced for v3 by Matthew Palmer 112186690Sobrien0 belong 0x4f4f4f4d User-mode Linux COW file 113186690Sobrien>4 belong <3 \b, version %d 114186690Sobrien>>8 string >\0 \b, backing file %s 115186690Sobrien>4 belong >2 \b, version %d 116186690Sobrien>>32 string >\0 \b, backing file %s 117133359Sobrien 118103373Sobrien############################################################################ 119103373Sobrien# Linux kernel versions 120103373Sobrien 121103373Sobrien0 string \xb8\xc0\x07\x8e\xd8\xb8\x00\x90 Linux 122103373Sobrien>497 leshort 0 x86 boot sector 123103373Sobrien>>514 belong 0x8e of a kernel from the dawn of time! 124103373Sobrien>>514 belong 0x908ed8b4 version 0.99-1.1.42 125103373Sobrien>>514 belong 0x908ed8b8 for memtest86 126103373Sobrien 127103373Sobrien>497 leshort !0 x86 kernel 128103373Sobrien>>504 leshort >0 RAMdisksize=%u KB 129103373Sobrien>>502 leshort >0 swap=0x%X 130103373Sobrien>>508 leshort >0 root=0x%X 131103373Sobrien>>>498 leshort 1 \b-ro 132103373Sobrien>>>498 leshort 0 \b-rw 133103373Sobrien>>506 leshort 0xFFFF vga=normal 134103373Sobrien>>506 leshort 0xFFFE vga=extended 135103373Sobrien>>506 leshort 0xFFFD vga=ask 136103373Sobrien>>506 leshort >0 vga=%d 137103373Sobrien>>514 belong 0x908ed881 version 1.1.43-1.1.45 138103373Sobrien>>514 belong 0x15b281cd 139103373Sobrien>>>0xa8e belong 0x55AA5a5a version 1.1.46-1.2.13,1.3.0 140103373Sobrien>>>0xa99 belong 0x55AA5a5a version 1.3.1,2 141103373Sobrien>>>0xaa3 belong 0x55AA5a5a version 1.3.3-1.3.30 142103373Sobrien>>>0xaa6 belong 0x55AA5a5a version 1.3.31-1.3.41 143103373Sobrien>>>0xb2b belong 0x55AA5a5a version 1.3.42-1.3.45 144103373Sobrien>>>0xaf7 belong 0x55AA5a5a version 1.3.46-1.3.72 145103373Sobrien>>514 string HdrS 146103373Sobrien>>>518 leshort >0x1FF 147103373Sobrien>>>>529 byte 0 \b, zImage 148103373Sobrien>>>>529 byte 1 \b, bzImage 149103373Sobrien>>>>(526.s+0x200) string >\0 \b, version %s 150103373Sobrien 151103373Sobrien# Linux boot sector thefts. 152103373Sobrien0 belong 0xb8c0078e Linux 153103373Sobrien>0x1e6 belong 0x454c4b53 ELKS Kernel 154103373Sobrien>0x1e6 belong !0x454c4b53 style boot sector 155103373Sobrien 156103373Sobrien############################################################################ 157103373Sobrien# Linux 8086 executable 158103373Sobrien0 lelong&0xFF0000FF 0xC30000E9 Linux-Dev86 executable, headerless 159103373Sobrien>5 string . 160103373Sobrien>>4 string >\0 \b, libc version %s 161103373Sobrien 162103373Sobrien0 lelong&0xFF00FFFF 0x4000301 Linux-8086 executable 163103373Sobrien>2 byte&0x01 !0 \b, unmapped zero page 164103373Sobrien>2 byte&0x20 0 \b, impure 165103373Sobrien>2 byte&0x20 !0 166103373Sobrien>>2 byte&0x10 !0 \b, A_EXEC 167103373Sobrien>2 byte&0x02 !0 \b, A_PAL 168103373Sobrien>2 byte&0x04 !0 \b, A_NSYM 169103373Sobrien>2 byte&0x08 !0 \b, A_STAND 170103373Sobrien>2 byte&0x40 !0 \b, A_PURE 171103373Sobrien>2 byte&0x80 !0 \b, A_TOVLY 172103373Sobrien>28 long !0 \b, not stripped 173103373Sobrien>37 string . 174103373Sobrien>>36 string >\0 \b, libc version %s 175103373Sobrien 176103373Sobrien# 0 lelong&0xFF00FFFF 0x10000301 ld86 I80386 executable 177103373Sobrien# 0 lelong&0xFF00FFFF 0xB000301 ld86 M68K executable 178103373Sobrien# 0 lelong&0xFF00FFFF 0xC000301 ld86 NS16K executable 179103373Sobrien# 0 lelong&0xFF00FFFF 0x17000301 ld86 SPARC executable 180103373Sobrien 181139368Sobrien# SYSLINUX boot logo files (from 'ppmtolss16' sources) 182139368Sobrien# http://syslinux.zytor.com/ 183139368Sobrien# 184139368Sobrien0 lelong =0x1413f33d SYSLINUX' LSS16 image data 185139368Sobrien>4 leshort x \b, width %d 186139368Sobrien>6 leshort x \b, height %d 187159764Sobrien 188159764Sobrien0 string OOOM User-Mode-Linux's Copy-On-Write disk image 189159764Sobrien>4 belong x version %d 190159764Sobrien 191159764Sobrien# SE Linux policy database 192159764Sobrien# From: Mike Frysinger <vapier@gentoo.org> 193159764Sobrien0 lelong 0xf97cff8c SE Linux policy 194159764Sobrien>16 lelong x v%d 195159764Sobrien>20 lelong 1 MLS 196159764Sobrien>24 lelong x %d symbols 197159764Sobrien>28 lelong x %d ocons 198159764Sobrien 199159764Sobrien# Linux Logical Volume Manager (LVM) 200159764Sobrien# Emmanuel VARAGNAT <emmanuel.varagnat@guzu.net> 201159764Sobrien# 202159764Sobrien# System ID, UUID and volume group name are 128 bytes long 203159764Sobrien# but they should never be full and initialized with zeros... 204159764Sobrien# 205159764Sobrien# LVM1 206159764Sobrien# 207159764Sobrien0x0 string HM\001 LVM1 (Linux Logical Volume Manager), version 1 208159764Sobrien>0x12c string >\0 , System ID: %s 209159764Sobrien 210159764Sobrien0x0 string HM\002 LVM1 (Linux Logical Volume Manager), version 2 211159764Sobrien>0x12c string >\0 , System ID: %s 212159764Sobrien 213159764Sobrien# LVM2 214159764Sobrien# 215159764Sobrien# It seems that the label header can be in one the four first sector 216159764Sobrien# of the disk... (from _find_labeller in lib/label/label.c of LVM2) 217159764Sobrien# 218159764Sobrien# 0x200 seems to be the common case 219159764Sobrien 220159764Sobrien0x218 string LVM2\ 001 LVM2 (Linux Logical Volume Manager) 221159764Sobrien# read the offset to add to the start of the header, and the header 222159764Sobrien# start in 0x200 223159764Sobrien>(0x214.l+0x200) string >\0 , UUID: %s 224159764Sobrien 225159764Sobrien0x018 string LVM2\ 001 LVM2 (Linux Logical Volume Manager) 226159764Sobrien>(0x014.l) string >\0 , UUID: %s 227159764Sobrien 228159764Sobrien0x418 string LVM2\ 001 LVM2 (Linux Logical Volume Manager) 229159764Sobrien>(0x414.l+0x400) string >\0 , UUID: %s 230159764Sobrien 231159764Sobrien0x618 string LVM2\ 001 LVM2 (Linux Logical Volume Manager) 232159764Sobrien>(0x614.l+0x600) string >\0 , UUID: %s 233169942Sobrien 234186690Sobrien# LVM snapshot 235186690Sobrien# from Jason Farrel 236186690Sobrien0 string SnAp LVM Snapshot (CopyOnWrite store) 237186690Sobrien>4 lelong !0 - valid, 238186690Sobrien>4 lelong 0 - invalid, 239186690Sobrien>8 lelong x version %d, 240186690Sobrien>12 lelong x chunk_size %d 241186690Sobrien 242169942Sobrien# SE Linux policy database 243169942Sobrien0 lelong 0xf97cff8c SE Linux policy 244169942Sobrien>16 lelong x v%d 245169942Sobrien>20 lelong 1 MLS 246169942Sobrien>24 lelong x %d symbols 247169942Sobrien>28 lelong x %d ocons 248169962Sobrien 249169962Sobrien# LUKS: Linux Unified Key Setup, On-Disk Format, http://luks.endorphin.org/spec 250169962Sobrien# Anthon van der Neut (anthon@mnt.org) 251169962Sobrien0 string LUKS\xba\xbe LUKS encrypted file, 252169962Sobrien>6 beshort x ver %d 253169962Sobrien>8 string x [%s, 254169962Sobrien>40 string x %s, 255169962Sobrien>72 string x %s] 256169962Sobrien>168 string x UUID: %s 257169962Sobrien 258186690Sobrien 259186690Sobrien# Summary: Xen saved domain file 260186690Sobrien# Created by: Radek Vokal <rvokal@redhat.com> 261186690Sobrien0 string LinuxGuestRecord Xen saved domain 262186690Sobrien>20 search/256 (name 263186690Sobrien>>&1 string x (name %s) 264186690Sobrien 265