FreeBSD/Linux Kernel Cross Reference
sys/sys/kerneldump.h
1 /*-
2 * Copyright (c) 2002 Poul-Henning Kamp
3 * Copyright (c) 2002 Networks Associates Technology, Inc.
4 * All rights reserved.
5 *
6 * This software was developed for the FreeBSD Project by Poul-Henning Kamp
7 * and NAI Labs, the Security Research Division of Network Associates, Inc.
8 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
9 * DARPA CHATS research program.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. The names of the authors may not be used to endorse or promote
20 * products derived from this software without specific prior written
21 * permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $FreeBSD: releng/8.2/sys/sys/kerneldump.h 215938 2010-11-27 12:26:40Z jchandra $
36 */
37
38 #ifndef _SYS_KERNELDUMP_H
39 #define _SYS_KERNELDUMP_H
40
41 #include <machine/endian.h>
42
43 #if BYTE_ORDER == LITTLE_ENDIAN
44 #define dtoh32(x) __bswap32(x)
45 #define dtoh64(x) __bswap64(x)
46 #define htod32(x) __bswap32(x)
47 #define htod64(x) __bswap64(x)
48 #elif BYTE_ORDER == BIG_ENDIAN
49 #define dtoh32(x) (x)
50 #define dtoh64(x) (x)
51 #define htod32(x) (x)
52 #define htod64(x) (x)
53 #endif
54
55 /*
56 * All uintX_t fields are in dump byte order, which is the same as
57 * network byte order. Use the macros defined above to read or
58 * write the fields.
59 */
60 struct kerneldumpheader {
61 char magic[20];
62 #define KERNELDUMPMAGIC "FreeBSD Kernel Dump"
63 #define TEXTDUMPMAGIC "FreeBSD Text Dump"
64 #define KERNELDUMPMAGIC_CLEARED "Cleared Kernel Dump"
65 char architecture[12];
66 uint32_t version;
67 #define KERNELDUMPVERSION 1
68 uint32_t architectureversion;
69 #define KERNELDUMP_ALPHA_VERSION 1
70 #define KERNELDUMP_AMD64_VERSION 2
71 #define KERNELDUMP_ARM_VERSION 1
72 #define KERNELDUMP_I386_VERSION 2
73 #define KERNELDUMP_IA64_VERSION 1
74 #define KERNELDUMP_MIPS_VERSION 1
75 #define KERNELDUMP_POWERPC_VERSION 1
76 #define KERNELDUMP_SPARC64_VERSION 1
77 #define KERNELDUMP_TEXT_VERSION 1
78 uint64_t dumplength; /* excl headers */
79 uint64_t dumptime;
80 uint32_t blocksize;
81 char hostname[64];
82 char versionstring[192];
83 char panicstring[192];
84 uint32_t parity;
85 };
86
87 /*
88 * Parity calculation is endian insensitive.
89 */
90 static __inline u_int32_t
91 kerneldump_parity(struct kerneldumpheader *kdhp)
92 {
93 uint32_t *up, parity;
94 u_int i;
95
96 up = (uint32_t *)kdhp;
97 parity = 0;
98 for (i = 0; i < sizeof *kdhp; i += sizeof *up)
99 parity ^= *up++;
100 return (parity);
101 }
102
103 #ifdef _KERNEL
104 void mkdumpheader(struct kerneldumpheader *kdh, char *magic, uint32_t archver,
105 uint64_t dumplen, uint32_t blksz);
106 #endif
107
108 #endif /* _SYS_KERNELDUMP_H */
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