2 #------------------------------------------------------------------------------
3 # linux: file(1) magic for Linux files
5 # Values for Linux/i386 binaries, from Daniel Quinlan <quinlan@yggdrasil.com>
6 # The following basic Linux magic is useful for reference, but using
7 # "long" magic is a better practice in order to avoid collisions.
9 # 2 leshort 100 Linux/i386
10 # >0 leshort 0407 impure executable (OMAGIC)
11 # >0 leshort 0410 pure executable (NMAGIC)
12 # >0 leshort 0413 demand-paged executable (ZMAGIC)
13 # >0 leshort 0314 demand-paged executable (QMAGIC)
15 0 lelong 0x00640107 Linux/i386 impure executable (OMAGIC)
16 >16 lelong 0 \b, stripped
17 0 lelong 0x00640108 Linux/i386 pure executable (NMAGIC)
18 >16 lelong 0 \b, stripped
19 0 lelong 0x0064010b Linux/i386 demand-paged executable (ZMAGIC)
20 >16 lelong 0 \b, stripped
21 0 lelong 0x006400cc Linux/i386 demand-paged executable (QMAGIC)
22 >16 lelong 0 \b, stripped
24 0 string \007\001\000 Linux/i386 object file
25 >20 lelong >0x1020 \b, DLL library
27 0 string \01\03\020\04 Linux-8086 impure executable
28 >28 long !0 not stripped
29 0 string \01\03\040\04 Linux-8086 executable
30 >28 long !0 not stripped
32 0 string \243\206\001\0 Linux-8086 object file
34 0 string \01\03\020\20 Minix-386 impure executable
35 >28 long !0 not stripped
36 0 string \01\03\040\20 Minix-386 executable
37 >28 long !0 not stripped
38 # core dump file, from Bill Reynolds <bill@goshawk.lanl.gov>
39 216 lelong 0421 Linux/i386 core file
40 >220 string >\0 of '%s'
41 >200 lelong >0 (signal %d)
43 # LILO boot/chain loaders, from Daniel Quinlan <quinlan@yggdrasil.com>
44 # this can be overridden by the DOS executable (COM) entry
45 2 string LILO Linux/i386 LILO boot/chain loader
47 # Debian Packages, from Peter Tobias <tobias@server.et-inf.fho-emden.de>
49 >8 byte 0x0a old Debian Binary Package
50 >>3 byte >0 \b, created by dpkg 0.9%c
52 # PSF fonts, from H. Peter Anvin <hpa@yggdrasil.com>
53 0 leshort 0x0436 Linux/i386 PC Screen Font data,
54 >2 byte 0 256 characters, no directory,
55 >2 byte 1 512 characters, no directory,
56 >2 byte 2 256 characters, Unicode directory,
57 >2 byte 3 512 characters, Unicode directory,
59 # Linux swap file, from Daniel Quinlan <quinlan@yggdrasil.com>
60 4086 string SWAP-SPACE Linux/i386 swap file
61 # according to man page of mkswap (8) March 1999
62 4086 string SWAPSPACE2 Linux/i386 swap file (new style)
63 # ECOFF magic for OSF/1 and Linux (only tested under Linux though)
65 # from Erik Troan (ewt@redhat.com) examining od dumps, so this
67 # updated by David Mosberger (davidm@azstarnet.com) based on
68 # GNU BFD and MIPS info found below.
70 0 leshort 0x0183 ECOFF alpha
71 >24 leshort 0407 executable
73 >24 leshort 0413 demand paged
74 >8 long >0 not stripped
76 >23 leshort >0 - version %ld.
78 # Linux kernel boot images, from Albert Cahalan <acahalan@cs.uml.edu>
79 # and others such as Axel Kohlmeyer <akohlmey@rincewind.chemie.uni-ulm.de>
80 # and Nicolás Lichtmaier <nick@debian.org>
81 # All known start with: b8 c0 07 8e d8 b8 00 90 8e c0 b9 00 01 29 f6 29
82 514 string HdrS Linux kernel
84 >>529 byte 0 zImage data,
85 >>529 byte 1 bzImage data,
87 >>0x048c string x version %s
89 >>0x0493 string x version %s
91 >>0x048c string x version %s
93 >>0x0493 string x version %s
95 >>0x04df string x version %s
97 >>0x04fb string x version %s
98 # This also matches new kernels, which were caught above by "HdrS".
99 0 belong 0xb8c0078e Linux kernel
100 >0x1e3 string Loading version 1.3.79 or older
101 >0x1e9 string Loading from prehistoric times
102 # LSM entries - Nicolás Lichtmaier <nick@feedback.net.ar>
103 0 string Begin3 Linux Software Map entry text
105 ############################################################################
106 # Linux kernel versions
108 0 string \xb8\xc0\x07\x8e\xd8\xb8\x00\x90 Linux
109 >497 leshort 0 x86 boot sector
110 >>514 belong 0x8e of a kernel from the dawn of time!
111 >>514 belong 0x908ed8b4 version 0.99-1.1.42
112 >>514 belong 0x908ed8b8 for memtest86
114 >497 leshort !0 x86 kernel
115 >>504 leshort >0 RAMdisksize=%u KB
116 >>502 leshort >0 swap=0x%X
117 >>508 leshort >0 root=0x%X
118 >>>498 leshort 1 \b-ro
119 >>>498 leshort 0 \b-rw
120 >>506 leshort 0xFFFF vga=normal
121 >>506 leshort 0xFFFE vga=extended
122 >>506 leshort 0xFFFD vga=ask
123 >>506 leshort >0 vga=%d
124 >>514 belong 0x908ed881 version 1.1.43-1.1.45
125 >>514 belong 0x15b281cd
126 >>>0xa8e belong 0x55AA5a5a version 1.1.46-1.2.13,1.3.0
127 >>>0xa99 belong 0x55AA5a5a version 1.3.1,2
128 >>>0xaa3 belong 0x55AA5a5a version 1.3.3-1.3.30
129 >>>0xaa6 belong 0x55AA5a5a version 1.3.31-1.3.41
130 >>>0xb2b belong 0x55AA5a5a version 1.3.42-1.3.45
131 >>>0xaf7 belong 0x55AA5a5a version 1.3.46-1.3.72
133 >>>518 leshort >0x1FF
134 >>>>529 byte 0 \b, zImage
135 >>>>529 byte 1 \b, bzImage
136 >>>>(526.s+0x200) string >\0 \b, version %s
138 # Linux boot sector thefts.
139 0 belong 0xb8c0078e Linux
140 >0x1e6 belong 0x454c4b53 ELKS Kernel
141 >0x1e6 belong !0x454c4b53 style boot sector
143 ############################################################################
144 # Linux 8086 executable
145 0 lelong&0xFF0000FF 0xC30000E9 Linux-Dev86 executable, headerless
147 >>4 string >\0 \b, libc version %s
149 0 lelong&0xFF00FFFF 0x4000301 Linux-8086 executable
150 >2 byte&0x01 !0 \b, unmapped zero page
151 >2 byte&0x20 0 \b, impure
153 >>2 byte&0x10 !0 \b, A_EXEC
154 >2 byte&0x02 !0 \b, A_PAL
155 >2 byte&0x04 !0 \b, A_NSYM
156 >2 byte&0x08 !0 \b, A_STAND
157 >2 byte&0x40 !0 \b, A_PURE
158 >2 byte&0x80 !0 \b, A_TOVLY
159 >28 long !0 \b, not stripped
161 >>36 string >\0 \b, libc version %s
163 # 0 lelong&0xFF00FFFF 0x10000301 ld86 I80386 executable
164 # 0 lelong&0xFF00FFFF 0xB000301 ld86 M68K executable
165 # 0 lelong&0xFF00FFFF 0xC000301 ld86 NS16K executable
166 # 0 lelong&0xFF00FFFF 0x17000301 ld86 SPARC executable