1# $OpenBSD: linux,v 1.4 2004/06/03 03:14:20 tedu Exp $ 2 3#------------------------------------------------------------------------------ 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 39# core dump file, from Bill Reynolds <bill@goshawk.lanl.gov> 40216 lelong 0421 Linux/i386 core file 41>220 string >\0 of '%s' 42>200 lelong >0 (signal %d) 43# 44# LILO boot/chain loaders, from Daniel Quinlan <quinlan@yggdrasil.com> 45# this can be overridden by the DOS executable (COM) entry 462 string LILO Linux/i386 LILO boot/chain loader 47# 48# PSF fonts, from H. Peter Anvin <hpa@yggdrasil.com> 490 leshort 0x0436 Linux/i386 PC Screen Font data, 50>2 byte 0 256 characters, no directory, 51>2 byte 1 512 characters, no directory, 52>2 byte 2 256 characters, Unicode directory, 53>2 byte 3 512 characters, Unicode directory, 54>3 byte >0 8x%d 55# Linux swap file, from Daniel Quinlan <quinlan@yggdrasil.com> 564086 string SWAP-SPACE Linux/i386 swap file 57# according to man page of mkswap (8) March 1999 584086 string SWAPSPACE2 Linux/i386 swap file (new style) 59>0x400 long x %d (4K pages) 60>0x404 long x size %d pages 61# ECOFF magic for OSF/1 and Linux (only tested under Linux though) 62# 63# from Erik Troan (ewt@redhat.com) examining od dumps, so this 64# could be wrong 65# updated by David Mosberger (davidm@azstarnet.com) based on 66# GNU BFD and MIPS info found below. 67# 680 leshort 0x0183 ECOFF alpha 69>24 leshort 0407 executable 70>24 leshort 0410 pure 71>24 leshort 0413 demand paged 72>8 long >0 not stripped 73>8 long 0 stripped 74>23 leshort >0 - version %ld. 75# 76# Linux kernel boot images, from Albert Cahalan <acahalan@cs.uml.edu> 77# and others such as Axel Kohlmeyer <akohlmey@rincewind.chemie.uni-ulm.de> 78# and Nicol�s Lichtmaier <nick@debian.org> 79# All known start with: b8 c0 07 8e d8 b8 00 90 8e c0 b9 00 01 29 f6 29 80# Linux kernel boot images (i386 arch) (Wolfram Kleff) 81514 string HdrS Linux kernel 82>510 leshort 0xAA55 x86 boot executable 83>>518 leshort >=3D0x200 84>>529 byte 0 zImage, 85>>>529 byte 1 bzImage, 86>>>(526.s+0x200) string >\0 version %s, 87>>498 leshort 1 RO-rootFS, 88>>498 leshort 0 RW-rootFS, 89>>508 leshort >0 root_dev 0x%X, 90>>502 leshort >0 swap_dev 0x%X, 91>>504 leshort >0 RAMdisksize %u KB, 92>>506 leshort 0xFFFF Normal VGA 93>>506 leshort 0xFFFE Extended VGA 94>>506 leshort 0xFFFD Prompt for Videomode 95>>506 leshort >0 Video mode %d 96# This also matches new kernels, which were caught above by "HdrS". 970 belong 0xb8c0078e Linux kernel 98>0x1e3 string Loading version 1.3.79 or older 99>0x1e9 string Loading from prehistoric times 100 101# System.map files - Nicol�s Lichtmaier <nick@debian.org> 1028 string \ A\ _text Linux kernel symbol map text 103 104# LSM entries - Nicol�s Lichtmaier <nick@debian.org> 1050 string Begin3 Linux Software Map entry text 1060 string Begin4 Linux Software Map entry text (new format) 107 108# From Matt Zimmerman 1090 belong 0x4f4f4f4d User-mode Linux COW file 110>4 belong x \b, version %d 111>8 string >\0 \b, backing file %s 112 113############################################################################ 114# Linux kernel versions 115 1160 string \xb8\xc0\x07\x8e\xd8\xb8\x00\x90 Linux 117>497 leshort 0 x86 boot sector 118>>514 belong 0x8e of a kernel from the dawn of time! 119>>514 belong 0x908ed8b4 version 0.99-1.1.42 120>>514 belong 0x908ed8b8 for memtest86 121 122>497 leshort !0 x86 kernel 123>>504 leshort >0 RAMdisksize=%u KB 124>>502 leshort >0 swap=0x%X 125>>508 leshort >0 root=0x%X 126>>>498 leshort 1 \b-ro 127>>>498 leshort 0 \b-rw 128>>506 leshort 0xFFFF vga=normal 129>>506 leshort 0xFFFE vga=extended 130>>506 leshort 0xFFFD vga=ask 131>>506 leshort >0 vga=%d 132>>514 belong 0x908ed881 version 1.1.43-1.1.45 133>>514 belong 0x15b281cd 134>>>0xa8e belong 0x55AA5a5a version 1.1.46-1.2.13,1.3.0 135>>>0xa99 belong 0x55AA5a5a version 1.3.1,2 136>>>0xaa3 belong 0x55AA5a5a version 1.3.3-1.3.30 137>>>0xaa6 belong 0x55AA5a5a version 1.3.31-1.3.41 138>>>0xb2b belong 0x55AA5a5a version 1.3.42-1.3.45 139>>>0xaf7 belong 0x55AA5a5a version 1.3.46-1.3.72 140>>514 string HdrS 141>>>518 leshort >0x1FF 142>>>>529 byte 0 \b, zImage 143>>>>529 byte 1 \b, bzImage 144>>>>(526.s+0x200) string >\0 \b, version %s 145 146# Linux boot sector thefts. 1470 belong 0xb8c0078e Linux 148>0x1e6 belong 0x454c4b53 ELKS Kernel 149>0x1e6 belong !0x454c4b53 style boot sector 150 151############################################################################ 152# Linux 8086 executable 1530 lelong&0xFF0000FF 0xC30000E9 Linux-Dev86 executable, headerless 154>5 string . 155>>4 string >\0 \b, libc version %s 156 1570 lelong&0xFF00FFFF 0x4000301 Linux-8086 executable 158>2 byte&0x01 !0 \b, unmapped zero page 159>2 byte&0x20 0 \b, impure 160>2 byte&0x20 !0 161>>2 byte&0x10 !0 \b, A_EXEC 162>2 byte&0x02 !0 \b, A_PAL 163>2 byte&0x04 !0 \b, A_NSYM 164>2 byte&0x08 !0 \b, A_STAND 165>2 byte&0x40 !0 \b, A_PURE 166>2 byte&0x80 !0 \b, A_TOVLY 167>28 long !0 \b, not stripped 168>37 string . 169>>36 string >\0 \b, libc version %s 170 171# 0 lelong&0xFF00FFFF 0x10000301 ld86 I80386 executable 172# 0 lelong&0xFF00FFFF 0xB000301 ld86 M68K executable 173# 0 lelong&0xFF00FFFF 0xC000301 ld86 NS16K executable 174# 0 lelong&0xFF00FFFF 0x17000301 ld86 SPARC executable 175