Imported Upstream version 2.12

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Jörg Frings-Fürst 2014-05-19 19:33:50 +02:00
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DEVELOPER AND MAINTAINER
Anton Arapov <anton@redhat.com>
ORIGINAL AUTHORS
Alan Cox <alan@redhat.com>
Jean Delvare <khali@linux-fr.org>
CODE CONTRIBUTORS (IN CHRONOLOGICAL ORDER)
Matt Domsch <Matt_Domsch@dell.com>
Arjan van de Ven <arjanv@redhat.com>
Mark D. Studebaker <mds@paradyne.com>
Larry Lile <llile@dreamworks.com>
Dave Johnson <ddj@cascv.brown.edu>
Petter Reinholdtsen <pere@hungry.com>
Roberto Nibali <ratz@tac.ch>
John Cagle <jcagle@kernel.org>
Jens Elkner <elkner@linofee.org>
Jarod Wilson <jarod@redhat.com>
MANY THANKS TO (IN CHRONOLOGICAL ORDER)
Werner Heuser
Alexandre Duret-Lutz
Xavier Roche
Pamela Huntley
Gael Stephan
Sebastian Henschel
Richard Sharpe
David Wilson
Glen Foster
Chad Smith
Joshua Goldenhar
Luc Van de Velde
Mario Lang
Hugues Lepesant
Sergey Leonovich
Mike Cooper
Marc Rieffel
Jeff Moyer
Josef Moellers
Zing Zing Shishak
Rafael Avila de Espindola
Roger Koot
Martin Pool
Doug Brenner
Alex Williamson
Durval Menezes
Raphael Raimbault
Raul Nunez de Arenas Coronado
Francois Revol
Dominik Klein
Erwan Velu
Don Howard
Frans Pop
Tomek Mateja
Myke Olson
Torsten Seemann
Garry Belka
Klaus Muth
Antoine Fuselier
Matthew Garrett
Landry Breuil
Luke Suchocki
Attila Nagy
Alex Iribarren
Sebastien Douche
William Lallemand
Olivier Guerrier
Pascal Terjan
Stuart Hayes
Sofian Brabez
Vincent Pelletier
Andreas Gruenbacher
Lin Li
Thomas Hiller
Paul Flo Williams
Olof Johansson
Alexandre Lissy
Michal Svec
Vojtech Pavlik
Murlin Wenzel
Harald Mueller-Ney
Lars Mueller
Thomas Mingarelli
Andrey Matveyev
Stefan Tauner
Naga Chumbalkar

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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The hypothetical commands `show w' and `show c' should show the appropriate
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

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#
# DMI Decode
# BIOS Decode
# VPD Decode
#
# Copyright (C) 2000-2002 Alan Cox <alan@redhat.com>
# Copyright (C) 2002-2007 Jean Delvare <khali@linux-fr.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
CC = gcc
CFLAGS = -W -Wall -Wshadow -Wstrict-prototypes -Wpointer-arith -Wcast-qual \
-Wcast-align -Wwrite-strings -Wmissing-prototypes -Winline -Wundef
#CFLAGS += -DBIGENDIAN
#CFLAGS += -DALIGNMENT_WORKAROUND
# When debugging, disable -O2 and enable -g.
CFLAGS += -O2
#CFLAGS += -g
# Pass linker flags here
LDFLAGS =
DESTDIR =
prefix = /usr/local
sbindir = $(prefix)/sbin
mandir = $(prefix)/share/man
man8dir = $(mandir)/man8
docdir = $(prefix)/share/doc/dmidecode
INSTALL := install
INSTALL_DATA := $(INSTALL) -m 644
INSTALL_DIR := $(INSTALL) -m 755 -d
INSTALL_PROGRAM := $(INSTALL) -m 755
RM := rm -f
# BSD make provides $MACHINE, but GNU make doesn't
MACHINE ?= $(shell uname -m 2>/dev/null)
# These programs are only useful on x86
PROGRAMS-i386 := biosdecode ownership vpddecode
PROGRAMS-i486 := $(PROGRAMS-i386)
PROGRAMS-i586 := $(PROGRAMS-i386)
PROGRAMS-i686 := $(PROGRAMS-i386)
PROGRAMS-x86_64 := biosdecode ownership vpddecode
PROGRAMS-amd64 := $(PROGRAMS-x86_64)
PROGRAMS := dmidecode $(PROGRAMS-$(MACHINE))
all : $(PROGRAMS)
#
# Programs
#
dmidecode : dmidecode.o dmiopt.o dmioem.o util.o
$(CC) $(LDFLAGS) dmidecode.o dmiopt.o dmioem.o util.o -o $@
biosdecode : biosdecode.o util.o
$(CC) $(LDFLAGS) biosdecode.o util.o -o $@
ownership : ownership.o util.o
$(CC) $(LDFLAGS) ownership.o util.o -o $@
vpddecode : vpddecode.o vpdopt.o util.o
$(CC) $(LDFLAGS) vpddecode.o vpdopt.o util.o -o $@
#
# Objects
#
dmidecode.o : dmidecode.c version.h types.h util.h config.h dmidecode.h \
dmiopt.h dmioem.h
$(CC) $(CFLAGS) -c $< -o $@
dmiopt.o : dmiopt.c config.h types.h util.h dmidecode.h dmiopt.h
$(CC) $(CFLAGS) -c $< -o $@
dmioem.o : dmioem.c types.h dmidecode.h dmioem.h
$(CC) $(CFLAGS) -c $< -o $@
biosdecode.o : biosdecode.c version.h types.h util.h config.h
$(CC) $(CFLAGS) -c $< -o $@
ownership.o : ownership.c version.h types.h util.h config.h
$(CC) $(CFLAGS) -c $< -o $@
vpddecode.o : vpddecode.c version.h types.h util.h config.h vpdopt.h
$(CC) $(CFLAGS) -c $< -o $@
vpdopt.o : vpdopt.c config.h util.h vpdopt.h
$(CC) $(CFLAGS) -c $< -o $@
util.o : util.c types.h util.h config.h
$(CC) $(CFLAGS) -c $< -o $@
#
# Commands
#
strip : $(PROGRAMS)
strip $(PROGRAMS)
install : install-bin install-man install-doc
uninstall : uninstall-bin uninstall-man uninstall-doc
install-bin : $(PROGRAMS)
$(INSTALL_DIR) $(DESTDIR)$(sbindir)
for program in $(PROGRAMS) ; do \
$(INSTALL_PROGRAM) $$program $(DESTDIR)$(sbindir) ; done
uninstall-bin :
for program in $(PROGRAMS) ; do \
$(RM) $(DESTDIR)$(sbindir)/$$program ; done
install-man :
$(INSTALL_DIR) $(DESTDIR)$(man8dir)
for program in $(PROGRAMS) ; do \
$(INSTALL_DATA) man/$$program.8 $(DESTDIR)$(man8dir) ; done
uninstall-man :
for program in $(PROGRAMS) ; do \
$(RM) $(DESTDIR)$(man8dir)/$$program.8 ; done
install-doc :
$(INSTALL_DIR) $(DESTDIR)$(docdir)
$(INSTALL_DATA) README $(DESTDIR)$(docdir)
$(INSTALL_DATA) CHANGELOG $(DESTDIR)$(docdir)
$(INSTALL_DATA) AUTHORS $(DESTDIR)$(docdir)
uninstall-doc :
$(RM) -r $(DESTDIR)$(docdir)
clean :
$(RM) *.o $(PROGRAMS) core

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** INTRODUCTION **
Dmidecode reports information about your system's hardware as described in
your system BIOS according to the SMBIOS/DMI standard. This information
typically includes system manufacturer, model name, serial number, BIOS
version, asset tag as well as a lot of other details of varying level of
interest and reliability depending on the manufacturer. This will often
include usage status for the CPU sockets, expansion slots (e.g. AGP, PCI,
ISA) and memory module slots, and the list of I/O ports (e.g. serial,
parallel, USB).
DMI data can be used to enable or disable specific portions of kernel code
depending on the specific hardware. Thus, one use of dmidecode is for kernel
developers to detect system "signatures" and add them to the kernel source
code when needed.
Beware that DMI data have proven to be too unreliable to be blindly trusted.
Dmidecode does not scan your hardware, it only reports what the BIOS told it
to.
** INSTALLATION **
The home web page for dmidecode is hosted on Savannah:
http://www.nongnu.org/dmidecode/
You will find the latest version (including CVS) there, as well as fresh news
and other interesting material, such as a list of related projects and
articles.
This program was first written for Linux, and has since been reported to work
on FreeBSD, NetBSD, OpenBSD, BeOS, Cygwin and Solaris as well.
There's no configure script, so simply run "make" to build dmidecode, and
"make install" to install it. You also can use "make uninstall" to remove
all the files you installed. By default, files are installed in /usr/local
but you can change this behavior by editing the Makefile file and setting
prefix to wherever you want. You may change the C compiler and the
compilation flags as well.
Optionally, you can run "make strip" prior to "make install" if you want
smaller binaries. However, be aware that this will prevent any further
attempt to debug the programs.
Two parameters can be set in the Makefile file to make dmidecode work on
non-i386 systems. They should be used if your system uses the big endian
byte ordering (Motorola) or doesn't support unaligned memory accesses,
respectively. For example, compiling for a SPARC processor would require
both (but I am not aware of SPARC-based systems implementing SMBIOS).
Compiling for an IA64 processor requires the memory alignment workaround,
and it is enabled automatically.
** DOCUMENTATION **
Each tool has a manual page, found in the "man" subdirectory. Manual pages
are installed by "make install". See these manual pages for command line
interface details and tool specific information.
For an history of the changes made to dmidecode, see the CHANGELOG file.
If you need help, your best chances are to visit the web page (see the
INSTALLATION section above) or to get in touch with the developers directly.
Have a look at the AUTHORS file and contact one of the maintainers.
If you want to help with the development of dmidecode, please consider
joining the dmidecode-devel discussion list:
http://lists.nongnu.org/mailman/listinfo/dmidecode-devel
** COMMON PROBLEMS **
IA-64
Non-Linux systems are not yet supported.
MMAP
Note that mmap() is now used by default wherever possible, since this seems
to solve a number of problems. This default behavior can be changed in
config.h. Just to make sure this is clear, mmap() is not used for performance
reasons but to increase the number of systems on which dmidecode can be
successfully run.
CYGWIN
Dmidecode was reported to work under Cygwin. It seems that /dev/mem doesn't
work properly before version 1.5.10 though, so you will need to use at least
this version.
** MISCELLANEOUS TOOLS **
Three other tools come along with dmidecode: biosdecode, ownership and
vpddecode. These tools are only useful on systems with a BIOS, so they
are not built on IA-64 by default.
BIOSDECODE
This one prints all BIOS related information it can find in /dev/mem.
It used to be part of dmidecode itself, but as dmidecode was growing,
we felt that the non-DMI part had to be moved to a separate tool.
OWNERSHIP
This tool was written on a request by Luc Van de Velde for use with Novell
tools in his company. It retrieves the "ownership tag" that can be set on
most Compaq computers. Since it uses the same mechanisms dmidecode and
biosdecode use, and could be of some use for other people as well, we
decided to make it part of the project.
VPDDECODE
This tool prints the contents of the "vital product data" structure as
found in most IBM and Lenovo computers. It used to have a lookup table
for the machine name, but it was unreliable and hard to maintain so it
was ultimately dropped. It has a command line interface.

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/*
* BIOS Decode
*
* Copyright (C) 2000-2002 Alan Cox <alan@redhat.com>
* Copyright (C) 2002-2008 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For the avoidance of doubt the "preferred form" of this code is one which
* is in an open unpatent encumbered format. Where cryptographic key signing
* forms part of the process of creating an executable the information
* including keys needed to generate an equivalently functional executable
* are deemed to be part of the source code.
*
* References:
* - DMTF "System Management BIOS Reference Specification"
* Version 2.3.4
* http://www.dmtf.org/standards/smbios
* - Intel "Preboot Execution Environment (PXE) Specification"
* Version 2.1
* http://www.intel.com/labs/manage/wfm/wfmspecs.htm
* - ACPI "Advanced Configuration and Power Interface Specification"
* Revision 2.0
* http://www.acpi.info/spec20.htm
* - Phoenix "BIOS32 Service Directory"
* Revision 0.4
* http://www.phoenix.com/en/support/white+papers-specs/
* - Microsoft "Plug and Play BIOS Specification"
* Version 1.0A
* http://www.microsoft.com/hwdev/tech/PnP/
* - Microsoft "PCI IRQ Routing Table Specification"
* Version 1.0
* http://www.microsoft.com/hwdev/archive/BUSBIOS/pciirq.asp
* - Compaq "Technical Reference Guide for Compaq Deskpro 4000 and 6000"
* First Edition
* http://h18000.www1.hp.com/support/techpubs/technical_reference_guides/113a1097.html
* - IBM "Using the BIOS Build ID to identify Thinkpad systems"
* Revision 2005-09-19
* http://www-307.ibm.com/pc/support/site.wss/MIGR-45120.html
* - Fujitsu application panel technical details
* As of July 23rd, 2004
* http://apanel.sourceforge.net/tech.php
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include "version.h"
#include "config.h"
#include "types.h"
#include "util.h"
/* Options are global */
struct opt
{
const char *devmem;
unsigned int flags;
};
static struct opt opt;
#define FLAG_VERSION (1 << 0)
#define FLAG_HELP (1 << 1)
struct bios_entry {
const char *anchor;
size_t anchor_len; /* computed */
off_t low_address;
off_t high_address;
size_t (*length)(const u8 *);
int (*decode)(const u8*, size_t);
};
/*
* SMBIOS
*/
static size_t smbios_length(const u8 *p)
{
return p[0x05] == 0x1E ? 0x1F : p[0x05];
}
static int smbios_decode(const u8 *p, size_t len)
{
if (len < 0x1F || !checksum(p, p[0x05])
|| memcmp("_DMI_", p + 0x10, 5) != 0
|| !checksum(p + 0x10, 0x0F))
return 0;
printf("SMBIOS %u.%u present.\n",
p[0x06], p[0x07]);
printf("\tStructure Table Length: %u bytes\n",
WORD(p+0x16));
printf("\tStructure Table Address: 0x%08X\n",
DWORD(p + 0x18));
printf("\tNumber Of Structures: %u\n",
WORD(p + 0x1C));
printf("\tMaximum Structure Size: %u bytes\n",
WORD(p + 0x08));
return 1;
}
static size_t dmi_length(const u8 *p)
{
(void) p;
return 0x0F;
}
static int dmi_decode(const u8 *p, size_t len)
{
if (len < 0x0F || !checksum(p, len))
return 0;
printf("Legacy DMI %u.%u present.\n",
p[0x0E]>>4, p[0x0E] & 0x0F);
printf("\tStructure Table Length: %u bytes\n",
WORD(p + 0x06));
printf("\tStructure Table Address: 0x%08X\n",
DWORD(p + 0x08));
printf("\tNumber Of Structures: %u\n",
WORD(p + 0x0C));
return 1;
}
/*
* SYSID
*/
static size_t sysid_length(const u8 *p)
{
return WORD(p + 0x08);
}
static int sysid_decode(const u8 *p, size_t len)
{
if (len < 0x11 || !checksum(p, WORD(p + 0x08)))
return 0;
printf("SYSID present.\n");
printf("\tRevision: %u\n",
p[0x10]);
printf("\tStructure Table Address: 0x%08X\n",
DWORD(p + 0x0A));
printf("\tNumber Of Structures: %u\n",
WORD(p + 0x0E));
return 1;
}
/*
* PnP
*/
static size_t pnp_length(const u8 *p)
{
return p[0x05];
}
static const char *pnp_event_notification(u8 code)
{
static const char *notification[] = {
"Not Supported", /* 0x0 */
"Polling",
"Asynchronous",
"Unknown" /* 0x3 */
};
return notification[code];
}
static int pnp_decode(const u8 *p, size_t len)
{
if (len < 0x21 || !checksum(p, p[0x05]))
return 0;
printf("PNP BIOS %u.%u present.\n",
p[0x04] >> 4, p[0x04] & 0x0F);
printf("\tEvent Notification: %s\n",
pnp_event_notification(WORD(p + 0x06) & 0x03));
if ((WORD(p + 0x06) & 0x03) == 0x01)
printf("\tEvent Notification Flag Address: 0x%08X\n",
DWORD(p + 0x09));
printf("\tReal Mode 16-bit Code Address: %04X:%04X\n",
WORD(p + 0x0F), WORD(p + 0x0D));
printf("\tReal Mode 16-bit Data Address: %04X:0000\n",
WORD(p + 0x1B));
printf("\t16-bit Protected Mode Code Address: 0x%08X\n",
DWORD(p + 0x13) + WORD(p + 0x11));
printf("\t16-bit Protected Mode Data Address: 0x%08X\n",
DWORD(p + 0x1D));
if (DWORD(p + 0x17) != 0)
printf("\tOEM Device Identifier: %c%c%c%02X%02X\n",
0x40 + ((p[0x17] >> 2) & 0x1F),
0x40 + ((p[0x17] & 0x03) << 3) + ((p[0x18] >> 5) & 0x07),
0x40 + (p[0x18] & 0x1F), p[0x19], p[0x20]);
return 1;
}
/*
* ACPI
*/
static size_t acpi_length(const u8 *p)
{
return p[15] == 2 ? 36 : 20;
}
static const char *acpi_revision(u8 code)
{
switch (code)
{
case 0:
return " 1.0";
case 2:
return " 2.0";
default:
return "";
}
}
static int acpi_decode(const u8 *p, size_t len)
{
if (len < 20 || !checksum(p, 20))
return 0;
printf("ACPI%s present.\n",
acpi_revision(p[15]));
printf("\tOEM Identifier: %c%c%c%c%c%c\n",
p[9], p[10], p[11], p[12], p[13], p[14]);
printf("\tRSD Table 32-bit Address: 0x%08X\n",
DWORD(p + 16));
if (len < 36)
return 1;
if (DWORD(p + 20) > len || !checksum(p, DWORD(p + 20)))
return 0;
if (DWORD(p + 20) < 32) return 1;
printf("\tXSD Table 64-bit Address: 0x%08X%08X\n",
QWORD(p + 24).h, QWORD(p + 24).l);
return 1;
}
/*
* Sony
*/
static size_t sony_length(const u8 *p)
{
return p[0x05];
}
static int sony_decode(const u8 *p, size_t len)
{
if (!checksum(p, len))
return 0;
printf("Sony system detected.\n");
return 1;
}
/*
* BIOS32
*/
static size_t bios32_length(const u8 *p)
{
return p[0x09] << 4;
}
static int bios32_decode(const u8 *p, size_t len)
{
if (len < 0x0A || !checksum(p, p[0x09] << 4))
return 0;
printf("BIOS32 Service Directory present.\n");
printf("\tRevision: %u\n",
p[0x08]);
printf("\tCalling Interface Address: 0x%08X\n",
DWORD(p + 0x04));
return 1;
}
/*
* PIR
*/
static void pir_irqs(u16 code)
{
if (code == 0)
printf(" None");
else
{
u8 i;
for (i = 0; i < 16; i++)
if (code & (1 << i))
printf(" %u", i);
}
}
static void pir_slot_number(u8 code)
{
if (code == 0)
printf(" on-board");
else
printf(" slot number %u", code);
}
static size_t pir_length(const u8 *p)
{
return WORD(p + 6);
}
static int pir_decode(const u8 *p, size_t len)
{
int i;
if (len < 32 || !checksum(p, WORD(p + 6)))
return 0;
printf("PCI Interrupt Routing %u.%u present.\n",
p[5], p[4]);
printf("\tRouter ID: %02x:%02x.%1x\n",
p[8], p[9]>>3, p[9] & 0x07);
printf("\tExclusive IRQs:");
pir_irqs(WORD(p + 10));
printf("\n");
if (DWORD(p + 12) != 0)
printf("\tCompatible Router: %04x:%04x\n",
WORD(p + 12), WORD(p + 14));
if (DWORD(p + 16) != 0)
printf("\tMiniport Data: 0x%08X\n",
DWORD(p + 16));
for (i = 1; i <= (WORD(p + 6) - 32) / 16; i++)
{
printf("\tSlot Entry %u: ID %02x:%02x,",
i, p[(i + 1) * 16], p[(i + 1) * 16 + 1] >> 3);
pir_slot_number(p[(i + 1) * 16 + 14]);
printf("\n");
/* printf("\tSlot Entry %u\n", i);
printf("\t\tID: %02x:%02x\n",
p[(i + 1) * 16], p[(i + 1) * 16 + 1] >> 3);
printf("\t\tLink Value for INTA#: %u\n",
p[(i + 1) * 16 + 2]);
printf("\t\tIRQ Bitmap for INTA#:");
pir_irqs(WORD(p + (i + 1) * 16 + 3));
printf("\n");
printf("\t\tLink Value for INTB#: %u\n",
p[(i + 1) * 16 + 5]);
printf("\t\tIRQ Bitmap for INTB#:");
pir_irqs(WORD(p + (i + 1) * 16 + 6));
printf("\n");
printf("\t\tLink Value for INTC#: %u\n",
p[(i + 1) * 16 + 8]);
printf("\t\tIRQ Bitmap for INTC#:");
pir_irqs(WORD(p + (i + 1) * 16 + 9));
printf("\n");
printf("\t\tLink Value for INTD#: %u\n",
p[(i + 1) * 16 + 11]);
printf("\t\tIRQ Bitmap for INTD#:");
pir_irqs(WORD(p + (i + 1) * 16 + 12));
printf("\n");
printf("\t\tSlot Number:");
pir_slot_number(p[(i + 1) * 16 + 14]);
printf("\n");*/
}
return 1;
}
/*
* Compaq-specific entries
*/
static size_t compaq_length(const u8 *p)
{
return p[4] * 10 + 5;
}
static int compaq_decode(const u8 *p, size_t len)
{
unsigned int i;
(void) len;
printf("Compaq-specific entries present.\n");
/* integrity checking (lack of checksum) */
for (i = 0; i < p[4]; i++)
{
/*
* We do not check for truncated entries, because the length
* was computed from the number of records in compaq_length
* right above, so it can't be wrong.
*/
if (p[5 + i * 10] != '$'
|| !(p[6 + i * 10] >= 'A' && p[6 + i * 10] <= 'Z')
|| !(p[7 + i * 10] >= 'A' && p[7 + i * 10] <= 'Z')
|| !(p[8 + i * 10] >= 'A' && p[8 + i * 10] <= 'Z'))
{
printf("\t Abnormal entry! Please report. [%02X %02X "
"%02X %02X]\n", p[5 + i * 10], p[6 + i * 10],
p[7 + i * 10], p[8 + i * 10]);
return 0;
}
}
for (i = 0; i < p[4]; i++)
{
printf("\tEntry %u: %c%c%c%c at 0x%08X (%u bytes)\n",
i + 1, p[5 + i * 10], p[6 + i * 10], p[7 + i * 10],
p[8 + i * 10], DWORD(p + 9 + i * 10),
WORD(p + 13 + i * 10));
}
return 1;
}
/*
* VPD (vital product data, IBM-specific)
*/
static void vpd_print_entry(const char *name, const u8 *p, size_t len)
{
size_t i;
printf("\t%s: ", name);
for (i = 0; i < len; i++)
if (p[i] >= 32 && p[i] < 127)
printf("%c", p[i]);
printf("\n");
}
static size_t vpd_length(const u8 *p)
{
return p[5];
}
static int vpd_decode(const u8 *p, size_t len)
{
if (len < 0x30)
return 0;
/* XSeries have longer records. */
if (!(len >= 0x45 && checksum(p, len))
/* Some Netvista seem to work with this. */
&& !checksum(p, 0x30)
/* The Thinkpad checksum does *not* include the first 13 bytes. */
&& !checksum(p + 0x0D, 0x30 - 0x0D))
return 0;
printf("VPD present.\n");
vpd_print_entry("BIOS Build ID", p + 0x0D, 9);
vpd_print_entry("Box Serial Number", p + 0x16, 7);
vpd_print_entry("Motherboard Serial Number", p + 0x1D, 11);
vpd_print_entry("Machine Type/Model", p + 0x28, 7);
if (len < 0x45)
return 1;
vpd_print_entry("BIOS Release Date", p + 0x30, 8);
return 1;
}
/*
* Fujitsu application panel
*/
static size_t fjkeyinf_length(const u8 *p)
{
(void) p;
/*
* We don't know at this point, it's somewhere between 12 and 32.
* So we return the max, it shouldn't hurt.
*/
return 32;
}
static int fjkeyinf_decode(const u8 *p, size_t len)
{
int i;
(void) len;
printf("Fujitsu application panel present.\n");
for (i = 0; i < 6; i++)
{
if (*(p + 8 + i * 4) == 0)
return 1;
printf("\tDevice %d: type %u, chip %u", i + 1,
*(p + 8 + i * 4), *(p + 8 + i * 4 + 2));
if (*(p+8+i*4+1)) /* Access method */
printf(", SMBus address 0x%x",
*(p + 8 + i * 4 + 3) >> 1);
printf("\n");
}
return 1;
}
/*
* Main
*/
static struct bios_entry bios_entries[] = {
{ "_SM_", 0, 0xF0000, 0xFFFFF, smbios_length, smbios_decode },
{ "_DMI_", 0, 0xF0000, 0xFFFFF, dmi_length, dmi_decode },
{ "_SYSID_", 0, 0xE0000, 0xFFFFF, sysid_length, sysid_decode },
{ "$PnP", 0, 0xF0000, 0xFFFFF, pnp_length, pnp_decode },
{ "RSD PTR ", 0, 0xE0000, 0xFFFFF, acpi_length, acpi_decode },
{ "$SNY", 0, 0xE0000, 0xFFFFF, sony_length, sony_decode },
{ "_32_", 0, 0xE0000, 0xFFFFF, bios32_length, bios32_decode },
{ "$PIR", 0, 0xF0000, 0xFFFFF, pir_length, pir_decode },
{ "32OS", 0, 0xE0000, 0xFFFFF, compaq_length, compaq_decode },
{ "\252\125VPD", 0, 0xF0000, 0xFFFFF, vpd_length, vpd_decode },
{ "FJKEYINF", 0, 0xF0000, 0xFFFFF, fjkeyinf_length, fjkeyinf_decode },
{ NULL, 0, 0, 0, NULL, NULL }
};
/* Believe it or not, this is significantly faster than memcmp */
static int anchor_match(const struct bios_entry *entry, const char *p)
{
size_t i;
for (i = 0; i < entry->anchor_len; i++)
if (entry->anchor[i] != p[i])
return 0;
return 1;
}
/* Return -1 on error, 0 on success */
static int parse_command_line(int argc, char * const argv[])
{
int option;
const char *optstring = "d:hV";
struct option longopts[] = {
{ "dev-mem", required_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ 0, 0, 0, 0 }
};
while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1)
switch (option)
{
case 'd':
opt.devmem = optarg;
break;
case 'h':
opt.flags |= FLAG_HELP;
break;
case 'V':
opt.flags |= FLAG_VERSION;
break;
case '?':
return -1;
}
return 0;
}
static void print_help(void)
{
static const char *help =
"Usage: biosdecode [OPTIONS]\n"
"Options are:\n"
" -d, --dev-mem FILE Read memory from device FILE (default: " DEFAULT_MEM_DEV ")\n"
" -h, --help Display this help text and exit\n"
" -V, --version Display the version and exit\n";
printf("%s", help);
}
int main(int argc, char * const argv[])
{
u8 *buf;
off_t fp;
int i;
if (sizeof(u8) != 1 || sizeof(u16) != 2 || sizeof(u32) != 4)
{
fprintf(stderr, "%s: compiler incompatibility\n", argv[0]);
exit(255);
}
/* Set default option values */
opt.devmem = DEFAULT_MEM_DEV;
opt.flags = 0;
if (parse_command_line(argc, argv) < 0)
exit(2);
if (opt.flags & FLAG_HELP)
{
print_help();
return 0;
}
if (opt.flags & FLAG_VERSION)
{
printf("%s\n", VERSION);
return 0;
}
printf("# biosdecode %s\n", VERSION);
if ((buf = mem_chunk(0xE0000, 0x20000, opt.devmem)) == NULL)
exit(1);
/* Compute anchor lengths once and for all */
for (i = 0; bios_entries[i].anchor != NULL; i++)
bios_entries[i].anchor_len = strlen(bios_entries[i].anchor);
for (fp = 0xE0000; fp <= 0xFFFF0; fp += 16)
{
u8 *p = buf + fp - 0xE0000;
for (i = 0; bios_entries[i].anchor != NULL; i++)
{
if (anchor_match(&bios_entries[i], (char *)p)
&& fp >= bios_entries[i].low_address
&& fp < bios_entries[i].high_address)
{
off_t len = bios_entries[i].length(p);
if (fp + len - 1 <= bios_entries[i].high_address)
{
if (bios_entries[i].decode(p, len))
{
fp += (((len - 1) >> 4) << 4);
break;
}
}
}
}
}
free(buf);
return 0;
}

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/*
* Configuration
*/
#ifndef CONFIG_H
#define CONFIG_H
/* Default memory device file */
#if defined(__BEOS__) || defined(__HAIKU__)
#define DEFAULT_MEM_DEV "/dev/misc/mem"
#else
#ifdef __sun
#define DEFAULT_MEM_DEV "/dev/xsvc"
#else
#define DEFAULT_MEM_DEV "/dev/mem"
#endif
#endif
/* Use mmap or not */
#ifndef __BEOS__
#define USE_MMAP
#endif
/* Use memory alignment workaround or not */
#ifdef __ia64__
#define ALIGNMENT_WORKAROUND
#endif
#endif

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/*
* This file is part of the dmidecode project.
*
* Copyright (C) 2005-2008 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
struct dmi_header
{
u8 type;
u8 length;
u16 handle;
u8 *data;
};
const char *dmi_string(const struct dmi_header *dm, u8 s);

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/*
* Decoding of OEM-specific entries
* This file is part of the dmidecode project.
*
* Copyright (C) 2007-2008 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <string.h>
#include "types.h"
#include "dmidecode.h"
#include "dmioem.h"
/*
* Globals for vendor-specific decodes
*/
enum DMI_VENDORS { VENDOR_UNKNOWN, VENDOR_HP };
static enum DMI_VENDORS dmi_vendor = VENDOR_UNKNOWN;
/*
* Remember the system vendor for later use. We only actually store the
* value if we know how to decode at least one specific entry type for
* that vendor.
*/
void dmi_set_vendor(const char *s)
{
if (strcmp(s, "HP") == 0 || strcmp(s, "Hewlett-Packard") == 0)
dmi_vendor = VENDOR_HP;
}
/*
* HP-specific data structures are decoded here.
*
* Code contributed by John Cagle.
*/
static int dmi_decode_hp(const struct dmi_header *h)
{
u8 *data = h->data;
int nic, ptr;
switch (h->type)
{
case 204:
/*
* Vendor Specific: HP ProLiant System/Rack Locator
*/
printf("HP ProLiant System/Rack Locator\n");
if (h->length < 0x0B) break;
printf("\tRack Name: %s\n", dmi_string(h, data[0x04]));
printf("\tEnclosure Name: %s\n", dmi_string(h, data[0x05]));
printf("\tEnclosure Model: %s\n", dmi_string(h, data[0x06]));
printf("\tEnclosure Serial: %s\n", dmi_string(h, data[0x0A]));
printf("\tEnclosure Bays: %d\n", data[0x08]);
printf("\tServer Bay: %s\n", dmi_string(h, data[0x07]));
printf("\tBays Filled: %d\n", data[0x09]);
break;
case 209:
case 221:
/*
* Vendor Specific: HP ProLiant NIC MAC Information
*
* This prints the BIOS NIC number,
* PCI bus/device/function, and MAC address
*/
printf(h->type == 221 ?
"HP BIOS iSCSI NIC PCI and MAC Information\n" :
"HP BIOS PXE NIC PCI and MAC Information\n");
nic = 1;
ptr = 4;
while (h->length >= ptr + 8)
{
if (data[ptr] == 0x00 && data[ptr + 1] == 0x00)
printf("\tNIC %d: Disabled\n", nic);
else if (data[ptr] == 0xFF && data[ptr + 1] == 0xFF)
printf("\tNIC %d: Not Installed\n", nic);
else
{
printf("\tNIC %d: PCI device %02x:%02x.%x, "
"MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
nic, data[ptr + 1],
data[ptr] >> 3, data[ptr] & 7,
data[ptr + 2], data[ptr + 3],
data[ptr + 4], data[ptr + 5],
data[ptr + 6], data[ptr + 7]);
}
nic++;
ptr += 8;
}
break;
default:
return 0;
}
return 1;
}
/*
* Dispatch vendor-specific entries decoding
* Return 1 if decoding was successful, 0 otherwise
*/
int dmi_decode_oem(const struct dmi_header *h)
{
switch (dmi_vendor)
{
case VENDOR_HP:
return dmi_decode_hp(h);
default:
return 0;
}
}

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/*
* Decoding of OEM-specific entries
* This file is part of the dmidecode project.
*
* Copyright (C) 2007-2008 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
struct dmi_header;
void dmi_set_vendor(const char *s);
int dmi_decode_oem(const struct dmi_header *h);

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/*
* Command line handling of dmidecode
* This file is part of the dmidecode project.
*
* Copyright (C) 2005-2008 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <strings.h>
#include <stdlib.h>
#include <getopt.h>
#include "config.h"
#include "types.h"
#include "util.h"
#include "dmidecode.h"
#include "dmiopt.h"
/* Options are global */
struct opt opt;
/*
* Handling of option --type
*/
struct type_keyword
{
const char *keyword;
const u8 *type;
};
static const u8 opt_type_bios[] = { 0, 13, 255 };
static const u8 opt_type_system[] = { 1, 12, 15, 23, 32, 255 };
static const u8 opt_type_baseboard[] = { 2, 10, 41, 255 };
static const u8 opt_type_chassis[] = { 3, 255 };
static const u8 opt_type_processor[] = { 4, 255 };
static const u8 opt_type_memory[] = { 5, 6, 16, 17, 255 };
static const u8 opt_type_cache[] = { 7, 255 };
static const u8 opt_type_connector[] = { 8, 255 };
static const u8 opt_type_slot[] = { 9, 255 };
static const struct type_keyword opt_type_keyword[] = {
{ "bios", opt_type_bios },
{ "system", opt_type_system },
{ "baseboard", opt_type_baseboard },
{ "chassis", opt_type_chassis },
{ "processor", opt_type_processor },
{ "memory", opt_type_memory },
{ "cache", opt_type_cache },
{ "connector", opt_type_connector },
{ "slot", opt_type_slot },
};
static void print_opt_type_list(void)
{
unsigned int i;
fprintf(stderr, "Valid type keywords are:\n");
for (i = 0; i < ARRAY_SIZE(opt_type_keyword); i++)
{
fprintf(stderr, " %s\n", opt_type_keyword[i].keyword);
}
}
static u8 *parse_opt_type(u8 *p, const char *arg)
{
unsigned int i;
/* Allocate memory on first call only */
if (p == NULL)
{
p = (u8 *)calloc(256, sizeof(u8));
if (p == NULL)
{
perror("calloc");
return NULL;
}
}
/* First try as a keyword */
for (i = 0; i < ARRAY_SIZE(opt_type_keyword); i++)
{
if (!strcasecmp(arg, opt_type_keyword[i].keyword))
{
int j = 0;
while (opt_type_keyword[i].type[j] != 255)
p[opt_type_keyword[i].type[j++]] = 1;
goto found;
}
}
/* Else try as a number */
while (*arg != '\0')
{
unsigned long val;
char *next;
val = strtoul(arg, &next, 0);
if (next == arg)
{
fprintf(stderr, "Invalid type keyword: %s\n", arg);
print_opt_type_list();
goto exit_free;
}
if (val > 0xff)
{
fprintf(stderr, "Invalid type number: %lu\n", val);
goto exit_free;
}
p[val] = 1;
arg = next;
while (*arg == ',' || *arg == ' ')
arg++;
}
found:
return p;
exit_free:
free(p);
return NULL;
}
/*
* Handling of option --string
*/
/* This lookup table could admittedly be reworked for improved performance.
Due to the low count of items in there at the moment, it did not seem
worth the additional code complexity though. */
static const struct string_keyword opt_string_keyword[] = {
{ "bios-vendor", 0, 0x04 },
{ "bios-version", 0, 0x05 },
{ "bios-release-date", 0, 0x08 },
{ "system-manufacturer", 1, 0x04 },
{ "system-product-name", 1, 0x05 },
{ "system-version", 1, 0x06 },
{ "system-serial-number", 1, 0x07 },
{ "system-uuid", 1, 0x08 }, /* dmi_system_uuid() */
{ "baseboard-manufacturer", 2, 0x04 },
{ "baseboard-product-name", 2, 0x05 },
{ "baseboard-version", 2, 0x06 },
{ "baseboard-serial-number", 2, 0x07 },
{ "baseboard-asset-tag", 2, 0x08 },
{ "chassis-manufacturer", 3, 0x04 },
{ "chassis-type", 3, 0x05 }, /* dmi_chassis_type() */
{ "chassis-version", 3, 0x06 },
{ "chassis-serial-number", 3, 0x07 },
{ "chassis-asset-tag", 3, 0x08 },
{ "processor-family", 4, 0x06 }, /* dmi_processor_family() */
{ "processor-manufacturer", 4, 0x07 },
{ "processor-version", 4, 0x10 },
{ "processor-frequency", 4, 0x16 }, /* dmi_processor_frequency() */
};
static void print_opt_string_list(void)
{
unsigned int i;
fprintf(stderr, "Valid string keywords are:\n");
for (i = 0; i < ARRAY_SIZE(opt_string_keyword); i++)
{
fprintf(stderr, " %s\n", opt_string_keyword[i].keyword);
}
}
static int parse_opt_string(const char *arg)
{
unsigned int i;
if (opt.string)
{
fprintf(stderr, "Only one string can be specified\n");
return -1;
}
for (i = 0; i < ARRAY_SIZE(opt_string_keyword); i++)
{
if (!strcasecmp(arg, opt_string_keyword[i].keyword))
{
opt.string = &opt_string_keyword[i];
return 0;
}
}
fprintf(stderr, "Invalid string keyword: %s\n", arg);
print_opt_string_list();
return -1;
}
/*
* Command line options handling
*/
/* Return -1 on error, 0 on success */
int parse_command_line(int argc, char * const argv[])
{
int option;
const char *optstring = "d:hqs:t:uV";
struct option longopts[] = {
{ "dev-mem", required_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{ "quiet", no_argument, NULL, 'q' },
{ "string", required_argument, NULL, 's' },
{ "type", required_argument, NULL, 't' },
{ "dump", no_argument, NULL, 'u' },
{ "dump-bin", required_argument, NULL, 'B' },
{ "from-dump", required_argument, NULL, 'F' },
{ "version", no_argument, NULL, 'V' },
{ 0, 0, 0, 0 }
};
while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1)
switch (option)
{
case 'B':
opt.flags |= FLAG_DUMP_BIN;
opt.dumpfile = optarg;
break;
case 'F':
opt.flags |= FLAG_FROM_DUMP;
opt.dumpfile = optarg;
break;
case 'd':
opt.devmem = optarg;
break;
case 'h':
opt.flags |= FLAG_HELP;
break;
case 'q':
opt.flags |= FLAG_QUIET;
break;
case 's':
if (parse_opt_string(optarg) < 0)
return -1;
opt.flags |= FLAG_QUIET;
break;
case 't':
opt.type = parse_opt_type(opt.type, optarg);
if (opt.type == NULL)
return -1;
break;
case 'u':
opt.flags |= FLAG_DUMP;
break;
case 'V':
opt.flags |= FLAG_VERSION;
break;
case '?':
switch (optopt)
{
case 's':
fprintf(stderr, "String keyword expected\n");
print_opt_string_list();
break;
case 't':
fprintf(stderr, "Type number or keyword expected\n");
print_opt_type_list();
break;
}
return -1;
}
/* Check for mutually exclusive output format options */
if ((opt.string != NULL) + (opt.type != NULL)
+ !!(opt.flags & FLAG_DUMP_BIN) > 1)
{
fprintf(stderr, "Options --string, --type and --dump-bin are mutually exclusive\n");
return -1;
}
if ((opt.flags & FLAG_FROM_DUMP) && (opt.flags & FLAG_DUMP_BIN))
{
fprintf(stderr, "Options --from-dump and --dump-bin are mutually exclusive\n");
return -1;
}
return 0;
}
void print_help(void)
{
static const char *help =
"Usage: dmidecode [OPTIONS]\n"
"Options are:\n"
" -d, --dev-mem FILE Read memory from device FILE (default: " DEFAULT_MEM_DEV ")\n"
" -h, --help Display this help text and exit\n"
" -q, --quiet Less verbose output\n"
" -s, --string KEYWORD Only display the value of the given DMI string\n"
" -t, --type TYPE Only display the entries of given type\n"
" -u, --dump Do not decode the entries\n"
" --dump-bin FILE Dump the DMI data to a binary file\n"
" --from-dump FILE Read the DMI data from a binary file\n"
" -V, --version Display the version and exit\n";
printf("%s", help);
}

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/*
* Command line handling of dmidecode
* This file is part of the dmidecode project.
*
* Copyright (C) 2005-2008 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
struct string_keyword
{
const char *keyword;
u8 type;
u8 offset;
};
struct opt
{
const char *devmem;
unsigned int flags;
u8 *type;
const struct string_keyword *string;
char *dumpfile;
};
extern struct opt opt;
#define FLAG_VERSION (1 << 0)
#define FLAG_HELP (1 << 1)
#define FLAG_DUMP (1 << 2)
#define FLAG_QUIET (1 << 3)
#define FLAG_DUMP_BIN (1 << 4)
#define FLAG_FROM_DUMP (1 << 5)
int parse_command_line(int argc, char * const argv[]);
void print_help(void);

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.TH BIOSDECODE 8 "February 2007" "dmidecode"
.SH NAME
biosdecode \- \s-1BIOS\s0 information decoder
.SH SYNOPSIS
.B biosdecode
.RB [ OPTIONS ]
.SH DESCRIPTION
.B biosdecode
parses the \s-1BIOS\s0 memory and prints information about all structures (or
entry points) it knows of. Currently known entry point types are:
.IP \(bu "\w'\(bu'u+1n"
\s-1SMBIOS\s0 (System Management \s-1BIOS\s0)
.br
Use
.B dmidecode
for a more detailed output.
.IP \(bu
\s-1DMI\s0 (Desktop Management Interface, a legacy version of \s-1SMBIOS\s0)
.br
Use
.B dmidecode
for a more detailed output.
.IP \(bu
\s-1SYSID\s0
.IP \(bu
\s-1PNP\s0 (Plug and Play)
.IP \(bu
\s-1ACPI\s0 (Advanced Configuration and Power Interface)
.IP \(bu
\s-1BIOS32\s0 (\s-1BIOS32\s0 Service Directory)
.IP \(bu
\s-1PIR\s0 (\s-1PCI\s0 \s-1IRQ\s0 Routing)
.IP \(bu
\s-132OS\s0 (\s-1BIOS32\s0 Extension, Compaq-specific)
.br
See
.B ownership
for a Compaq ownership tag retrieval tool.
.IP \(bu
\s-1SNY\s0 (Sony-specific, not decoded)
.IP \(bu
\s-1VPD\s0 (Vital Product Data, IBM-specific)
.br
Use
.B vpddecode
for a more detailed output.
.IP \(bu
\s-1FJKEYINF\s0 (Application Panel, Fujitsu-specific)
.PP
.B biosdecode
started its life as a part of
.B dmidecode
but as more entry point types were added, if was moved to a different
program.
.SH OPTIONS
.TP
.BR "-d" ", " "--dev-mem FILE"
Read memory from device \fBFILE\fR (default: \fB/dev/mem\fR)
.TP
.BR "-h" ", " "--help"
Display usage information and exit
.TP
.BR "-V" ", " "--version"
Display the version and exit
.SH FILES
.I /dev/mem
.SH BUGS
Most of the time,
.B biosdecode
prints too much information (you don't really care about addresses)
or not enough (because it doesn't follow pointers and has no lookup
tables).
.SH AUTHORS
Alan Cox, Jean Delvare
.SH "SEE ALSO"
.BR dmidecode (8),
.BR mem (4),
.BR ownership (8),
.BR vpddecode (8)

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.TH DMIDECODE 8 "March 2012" "dmidecode"
.SH NAME
dmidecode \- \s-1DMI\s0 table decoder
.SH SYNOPSIS
.B dmidecode
.RB [ OPTIONS ]
.SH DESCRIPTION
.B dmidecode
is a tool for dumping a computer's \s-1DMI\s0 (some say \s-1SMBIOS\s0) table
contents in a human-readable format. This table contains a description of the
system's hardware components, as well as other useful pieces of information
such as serial numbers and \s-1BIOS\s0 revision. Thanks to this table, you can
retrieve this information without having to probe for the actual hardware.
While this is a good point in terms of report speed and safeness, this also
makes the presented information possibly unreliable.
The \s-1DMI\s0 table doesn't only describe what the system is currently made
of, it also can report the possible evolutions (such as the fastest supported
\s-1CPU\s0 or the maximal amount of memory supported).
\s-1SMBIOS\s0 stands for System Management \s-1BIOS\s0, while \s-1DMI\s0
stands for Desktop Management Interface. Both standards are tightly related
and developed by the \s-1DMTF\s0 (Desktop Management Task Force).
As you run it,
.B dmidecode
will try to locate the \s-1DMI\s0 table. If it succeeds, it will then parse
this table and display a list of records like this one:
Handle 0x0002, DMI type 2, 8 bytes.
Base Board Information
Manufacturer: Intel
Product Name: C440GX+
Version: 727281-001
Serial Number: INCY92700942
Each record has:
.IP \(bu "\w'\(bu'u+1n"
A handle. This is a unique identifier, which allows records to
reference each other. For example, processor records usually reference
cache memory records using their handles.
.IP \(bu
A type. The \s-1SMBIOS\s0 specification defines different types of elements
a computer can be made of. In this example, the type is 2, which
means that the record contains "Base Board Information".
.IP \(bu
A size. Each record has a 4-byte header (2 for the handle, 1 for the type,
1 for the size), the rest is used by the record data. This value doesn't
take text strings into account (these are placed at the end of the record),
so the actual length of the record may be (and is often) greater than the
displayed value.
.IP \(bu
Decoded values. The information presented of course depends on the type
of record. Here, we learn about the board's manufacturer, model, version
and serial number.
.SH OPTIONS
.TP
.BR "-d" ", " "--dev-mem FILE"
Read memory from device \fBFILE\fR (default: \fB/dev/mem\fR)
.TP
.BR "-q" ", " "--quiet"
Be less verbose. Unknown, inactive and \s-1OEM\s0-specific entries are not
displayed. Meta-data and handle references are hidden.
.TP
.BR "-s" ", " "--string KEYWORD"
Only display the value of the \s-1DMI\s0 string identified by \fBKEYWORD\fR.
\fBKEYWORD\fR must be a keyword from the following list: \fBbios-vendor\fR,
\fBbios-version\fR, \fBbios-release-date\fR,
\fBsystem-manufacturer\fR, \fBsystem-product-name\fR,
\fBsystem-version\fR, \fBsystem-serial-number\fR,
\fBsystem-uuid\fR,
\fBbaseboard-manufacturer\fR, \fBbaseboard-product-name\fR,
\fBbaseboard-version\fR, \fBbaseboard-serial-number\fR,
\fBbaseboard-asset-tag\fR, \fBchassis-manufacturer\fR,
\fBchassis-type\fR,
\fBchassis-version\fR, \fBchassis-serial-number\fR,
\fBchassis-asset-tag\fR, \fBprocessor-family\fR,
\fBprocessor-manufacturer\fR,
\fBprocessor-version\fR, \fBprocessor-frequency\fR.
Each keyword corresponds to a given \s-1DMI\s0 type and a given offset
within this entry type.
Not all strings may be meaningful or even defined on all systems. Some
keywords may return more than one result on some systems (e.g.
\fBprocessor-version\fR on a multi-processor system).
If \fBKEYWORD\fR is not provided or not valid, a list of all valid
keywords is printed and
.B dmidecode
exits with an error.
This option cannot be used more than once.
.TP
.BR "-t" ", " "--type TYPE"
Only display the entries of type \fBTYPE\fR. \fBTYPE\fR can be either a
\s-1DMI\s0 type number, or a comma-separated list of type numbers, or a
keyword from the following list: \fBbios\fR, \fBsystem\fR,
\fBbaseboard\fR, \fBchassis\fR, \fBprocessor\fR, \fBmemory\fR,
\fBcache\fR, \fBconnector\fR, \fBslot\fR. Refer to the DMI TYPES section
below for details.
If this option is used more than once, the set of displayed entries will be
the union of all the given types.
If \fBTYPE\fR is not provided or not valid, a list of all valid keywords
is printed and
.B dmidecode
exits with an error.
.TP
.BR "-u" ", " "--dump"
Do not decode the entries, dump their contents as hexadecimal instead.
Note that this is still a text output, no binary data will be thrown upon
you. The strings attached to each entry are displayed as both
hexadecimal and \s-1ASCII\s0. This option is mainly useful for debugging.
.TP
.BR " " " " "--dump-bin FILE"
Do not decode the entries, instead dump the DMI data to a file in binary
form. The generated file is suitable to pass to \fB--from-dump\fR
later.
.TP
.BR " " " " "--from-dump FILE"
Read the DMI data from a binary file previously generated using
\fB--dump-bin\fR.
.TP
.BR "-h" ", " "--help"
Display usage information and exit
.TP
.BR "-V" ", " "--version"
Display the version and exit
.P
Options --string, --type and --dump-bin
determine the output format and are mutually exclusive.
.P
Please note in case of
.B dmidecode
is run on a system with BIOS that boasts new SMBIOS specification, which
is not supported by the tool yet, it will print out relevant message in
addition to requested data on the very top of the output. Thus informs the
output data is not reliable.
.SH "DMI TYPES"
The \s-1SMBIOS\s0 specification defines the following \s-1DMI\s0 types:
.TS
r l
__
r l.
Type Information
0 BIOS
1 System
2 Baseboard
3 Chassis
4 Processor
5 Memory Controller
6 Memory Module
7 Cache
8 Port Connector
9 System Slots
10 On Board Devices
11 OEM Strings
12 System Configuration Options
13 BIOS Language
14 Group Associations
15 System Event Log
16 Physical Memory Array
17 Memory Device
18 32-bit Memory Error
19 Memory Array Mapped Address
20 Memory Device Mapped Address
21 Built-in Pointing Device
22 Portable Battery
23 System Reset
24 Hardware Security
25 System Power Controls
26 Voltage Probe
27 Cooling Device
28 Temperature Probe
29 Electrical Current Probe
30 Out-of-band Remote Access
31 Boot Integrity Services
32 System Boot
33 64-bit Memory Error
34 Management Device
35 Management Device Component
36 Management Device Threshold Data
37 Memory Channel
38 IPMI Device
39 Power Supply
40 Additional Information
41 Onboard Devices Extended Information
42 Management Controller Host Interface
.TE
Additionally, type 126 is used for disabled entries and type 127 is an
end-of-table marker. Types 128 to 255 are for \s-1OEM\s0-specific data.
.B dmidecode
will display these entries by default, but it can only decode them
when the vendors have contributed documentation or code for them.
Keywords can be used instead of type numbers with \fB--type\fR.
Each keyword is equivalent to a list of type numbers:
.TS
l l
__
l l.
Keyword Types
bios 0, 13
system 1, 12, 15, 23, 32
baseboard 2, 10, 41
chassis 3
processor 4
memory 5, 6, 16, 17
cache 7
connector 8
slot 9
.TE
Keywords are matched case-insensitively. The following command lines are equivalent:
.IP \(bu "\w'\(bu'u+1n"
dmidecode --type 0 --type 13
.IP \(bu
dmidecode --type 0,13
.IP \(bu
dmidecode --type bios
.IP \(bu
dmidecode --type BIOS
.SH BINARY DUMP FILE FORMAT
The binary dump files generated by --dump-bin and read using --from-dump
are formatted as follows:
.IP \(bu "\w'\(bu'u+1n"
The SMBIOS or DMI entry point is located at offset 0x00.
It is crafted to hard-code the table address at offset 0x20.
.IP \(bu "\w'\(bu'u+1n"
The DMI table is located at offset 0x20.
.SH FILES
.I /dev/mem
.SH BUGS
More often than not, information contained in the \s-1DMI\s0 tables is inaccurate,
incomplete or simply wrong.
.SH AUTHORS
Alan Cox, Jean Delvare
.SH "SEE ALSO"
.BR biosdecode (8),
.BR mem (4),
.BR ownership (8),
.BR vpddecode (8)

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.TH OWNERSHIP 8 "February 2005" "dmidecode"
.SH NAME
ownership \- Compaq ownership tag retriever
.SH SYNOPSIS
.B ownership
.RB [ OPTIONS ]
.SH DESCRIPTION
.B ownership
retrieves and prints the "ownership tag" that can be set on Compaq
computers. Contrary to all other programs of the
.B dmidecode
package,
.B ownership
doesn't print any version information, nor labels, but only the raw
ownership tag. This should help its integration in scripts.
.SH OPTIONS
.TP
.BR "-d" ", " "--dev-mem FILE"
Read memory from device \fBFILE\fR (default: \fB/dev/mem\fR)
.TP
.BR "-h" ", " "--help"
Display usage information and exit
.TP
.BR "-V" ", " "--version"
Display the version and exit
.SH FILES
.I /dev/mem
.SH AUTHOR
Jean Delvare
.SH "SEE ALSO"
.BR biosdecode (8),
.BR dmidecode (8),
.BR mem (4),
.BR vpddecode (8)

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.TH VPDDECODE 8 "February 2007" "dmidecode"
.SH NAME
vpddecode \- \s-1VPD\s0 structure decoder
.SH SYNOPSIS
.B vpddecode
.RB [ OPTIONS ]
.SH DESCRIPTION
.B vpddecode
prints the "vital product data" information that can be found in almost
all IBM and Lenovo computers. Available items are:
.IP \(bu "\w'\(bu'u+1n"
\s-1BIOS\s0 Build \s-1ID\s0
.IP \(bu
Box Serial Number
.IP \(bu
Motherboard Serial Number
.IP \(bu
Machine Type/Model
.PP
Some systems have these additional items:
.IP \(bu "\w'\(bu'u+1n"
BIOS Release Date
.IP \(bu
Default Flash Image File Name
.PP
Note that these additional items are not documented by IBM, so this is
guess work, and as such should not be blindly trusted. Feedback about
the accuracy of these labels is welcome.
.SH OPTIONS
.TP
.BR "-d" ", " "--dev-mem FILE"
Read memory from device \fBFILE\fR (default: \fB/dev/mem\fR)
.TP
.BR "-s" ", " "--string KEYWORD"
Only display the value of the \s-1VPD\s0 string identified by \fBKEYWORD\fR.
\fBKEYWORD\fR must be a keyword from the following list: \fBbios-build-id\fR,
\fBbox-serial-number\fR, \fBmotherboard-serial-number\fR,
\fBmachine-type-model\fR, \fBbios-release-date\fR.
Each keyword corresponds to an offset and a length within the \s-1VPD\s0
record.
Not all strings may be defined on all \s-1VPD\s0-enabled systems.
If \fBKEYWORD\fR is not provided or not valid, a list of all valid
keywords is printed and
.B vpddecode
exits with an error.
This option cannot be used more than once.
Mutually exclusive with \fB--dump\fR.
.TP
.BR "-u" ", " "--dump"
Do not decode the VPD records, dump their contents as hexadecimal instead.
Note that this is still a text output, no binary data will be thrown upon
you. ASCII equivalent is displayed when possible. This option is mainly
useful for debugging.
Mutually exclusive with \fB--string\fR.
.TP
.BR "-h" ", " "--help"
Display usage information and exit
.TP
.BR "-V" ", " "--version"
Display the version and exit
.SH FILES
.I /dev/mem
.SH AUTHOR
Jean Delvare
.SH "SEE ALSO"
.BR biosdecode (8),
.BR dmidecode (8),
.BR mem (4),
.BR ownership (8)

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/*
* Compaq Ownership Tag
*
* Copyright (C) 2003-2005 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For the avoidance of doubt the "preferred form" of this code is one which
* is in an open unpatent encumbered format. Where cryptographic key signing
* forms part of the process of creating an executable the information
* including keys needed to generate an equivalently functional executable
* are deemed to be part of the source code.
*
* References:
* - Compaq "Technical Reference Guide for Compaq Deskpro 4000 and 6000"
* First Edition
* http://h18000.www1.hp.com/support/techpubs/technical_reference_guides/113a1097.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include "version.h"
#include "config.h"
#include "types.h"
#include "util.h"
/* Options are global */
struct opt
{
const char *devmem;
unsigned int flags;
};
static struct opt opt;
#define FLAG_VERSION (1 << 0)
#define FLAG_HELP (1 << 1)
static void ownership(u32 base, const char *pname, const char *devmem)
{
u8 *buf;
int i;
/* read the ownership tag */
if ((buf = mem_chunk(base, 0x51, devmem)) == NULL)
{
perror(pname);
return;
}
/* chop the trailing garbage */
i = 0x4f;
while (i >= 0 && (buf[i] == 0x20 || buf[i] == 0x00))
i--;
buf[i + 1] = '\0';
/* filter and print */
if (i >= 0)
{
for (; i >= 0; i--)
{
if (buf[i] < 32 || (buf[i] >= 127 && buf[i] < 160))
buf[i] = '?';
}
printf("%s\n", (char *)buf);
}
free(buf);
}
static u32 decode(const u8 *p)
{
int i;
/* integrity checking (lack of checksum) */
for (i = 0; i < p[4]; i++)
{
if (p[5 + i * 10] != '$'
|| !(p[6 + i * 10] >= 'A' && p[6 + i * 10] <= 'Z')
|| !(p[7 + i * 10] >= 'A' && p[7 + i * 10] <= 'Z')
|| !(p[8 + i * 10] >= 'A' && p[8 + i * 10] <= 'Z'))
{
printf("\t Abnormal Entry! Please report. [%02x %02x %02x %02x]\n",
p[5 + i * 10], p[6 + i * 10],
p[7 + i * 10], p[8 + i * 10]);
return 0;
}
}
/* search for the right entry */
for (i = 0; i < p[4]; i++)
if (memcmp(p + 5 + i * 10, "$ERB", 4) == 0)
return DWORD(p + 9 + i * 10);
return 0;
}
/* Return -1 on error, 0 on success */
static int parse_command_line(int argc, char * const argv[])
{
int option;
const char *optstring = "d:hV";
struct option longopts[] = {
{ "dev-mem", required_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ 0, 0, 0, 0 }
};
while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1)
switch (option)
{
case 'd':
opt.devmem = optarg;
break;
case 'h':
opt.flags |= FLAG_HELP;
break;
case 'V':
opt.flags |= FLAG_VERSION;
break;
case '?':
return -1;
}
return 0;
}
static void print_help(void)
{
static const char *help =
"Usage: ownership [OPTIONS]\n"
"Options are:\n"
" -d, --dev-mem FILE Read memory from device FILE (default: " DEFAULT_MEM_DEV ")\n"
" -h, --help Display this help text and exit\n"
" -V, --version Display the version and exit\n";
printf("%s", help);
}
int main(int argc, char * const argv[])
{
u8 *buf;
off_t fp;
int ok = 0;
if (sizeof(u8) != 1 || sizeof(u32) != 4)
{
fprintf(stderr, "%s: compiler incompatibility\n", argv[0]);
exit(255);
}
/* Set default option values */
opt.devmem = DEFAULT_MEM_DEV;
opt.flags = 0;
if (parse_command_line(argc, argv)<0)
exit(2);
if (opt.flags & FLAG_HELP)
{
print_help();
return 0;
}
if (opt.flags & FLAG_VERSION)
{
printf("%s\n", VERSION);
return 0;
}
if ((buf = mem_chunk(0xE0000, 0x20000, opt.devmem)) == NULL)
exit(1);
for (fp = 0; !ok && fp <= 0x1FFF0; fp += 16)
{
u8 *p = buf + fp;
if (memcmp((char *)p, "32OS", 4) == 0)
{
off_t len = p[4] * 10 + 5;
if (fp + len - 1 <= 0x1FFFF)
{
u32 base;
if ((base = decode(p)))
{
ok = 1;
ownership(base, argv[0], opt.devmem);
}
}
}
}
free(buf);
return 0;
}

62
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#ifndef TYPES_H
#define TYPES_H
#include "config.h"
typedef unsigned char u8;
typedef unsigned short u16;
typedef signed short i16;
typedef unsigned int u32;
/*
* You may use the following defines to adjust the type definitions
* depending on the architecture:
* - Define BIGENDIAN on big-endian systems. Untested, as all target
* systems to date are little-endian.
* - Define ALIGNMENT_WORKAROUND if your system doesn't support
* non-aligned memory access. In this case, we use a slower, but safer,
* memory access method. This should be done automatically in config.h
* for architectures which need it.
*/
#ifdef BIGENDIAN
typedef struct {
u32 h;
u32 l;
} u64;
#else
typedef struct {
u32 l;
u32 h;
} u64;
#endif
#ifdef ALIGNMENT_WORKAROUND
static inline u64 U64(u32 low, u32 high)
{
u64 self;
self.l = low;
self.h = high;
return self;
}
#endif
#ifdef ALIGNMENT_WORKAROUND
# ifdef BIGENDIAN
# define WORD(x) (u16)((x)[1] + ((x)[0] << 8))
# define DWORD(x) (u32)((x)[3] + ((x)[2] << 8) + ((x)[1] << 16) + ((x)[0] << 24))
# define QWORD(x) (U64(DWORD(x + 4), DWORD(x)))
# else /* BIGENDIAN */
# define WORD(x) (u16)((x)[0] + ((x)[1] << 8))
# define DWORD(x) (u32)((x)[0] + ((x)[1] << 8) + ((x)[2] << 16) + ((x)[3] << 24))
# define QWORD(x) (U64(DWORD(x), DWORD(x + 4)))
# endif /* BIGENDIAN */
#else /* ALIGNMENT_WORKAROUND */
#define WORD(x) (u16)(*(const u16 *)(x))
#define DWORD(x) (u32)(*(const u32 *)(x))
#define QWORD(x) (*(const u64 *)(x))
#endif /* ALIGNMENT_WORKAROUND */
#endif

219
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/*
* Common "util" functions
* This file is part of the dmidecode project.
*
* Copyright (C) 2002-2010 Jean Delvare <khali@linux-fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For the avoidance of doubt the "preferred form" of this code is one which
* is in an open unpatent encumbered format. Where cryptographic key signing
* forms part of the process of creating an executable the information
* including keys needed to generate an equivalently functional executable
* are deemed to be part of the source code.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include "config.h"
#ifdef USE_MMAP
#include <sys/mman.h>
#ifndef MAP_FAILED
#define MAP_FAILED ((void *) -1)
#endif /* !MAP_FAILED */
#endif /* USE MMAP */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include "types.h"
#include "util.h"
static int myread(int fd, u8 *buf, size_t count, const char *prefix)
{
ssize_t r = 1;
size_t r2 = 0;
while (r2 != count && r != 0)
{
r = read(fd, buf + r2, count - r2);
if (r == -1)
{
if (errno != EINTR)
{
close(fd);
perror(prefix);
return -1;
}
}
else
r2 += r;
}
if (r2 != count)
{
close(fd);
fprintf(stderr, "%s: Unexpected end of file\n", prefix);
return -1;
}
return 0;
}
int checksum(const u8 *buf, size_t len)
{
u8 sum = 0;
size_t a;
for (a = 0; a < len; a++)
sum += buf[a];
return (sum == 0);
}
/*
* Copy a physical memory chunk into a memory buffer.
* This function allocates memory.
*/
void *mem_chunk(size_t base, size_t len, const char *devmem)
{
void *p;
int fd;
#ifdef USE_MMAP
size_t mmoffset;
void *mmp;
#endif
if ((fd = open(devmem, O_RDONLY)) == -1)
{
perror(devmem);
return NULL;
}
if ((p = malloc(len)) == NULL)
{
perror("malloc");
return NULL;
}
#ifdef USE_MMAP
#ifdef _SC_PAGESIZE
mmoffset = base % sysconf(_SC_PAGESIZE);
#else
mmoffset = base % getpagesize();
#endif /* _SC_PAGESIZE */
/*
* Please note that we don't use mmap() for performance reasons here,
* but to workaround problems many people encountered when trying
* to read from /dev/mem using regular read() calls.
*/
mmp = mmap(0, mmoffset + len, PROT_READ, MAP_SHARED, fd, base - mmoffset);
if (mmp == MAP_FAILED)
goto try_read;
memcpy(p, (u8 *)mmp + mmoffset, len);
if (munmap(mmp, mmoffset + len) == -1)
{
fprintf(stderr, "%s: ", devmem);
perror("munmap");
}
goto out;
#endif /* USE_MMAP */
try_read:
if (lseek(fd, base, SEEK_SET) == -1)
{
fprintf(stderr, "%s: ", devmem);
perror("lseek");
free(p);
return NULL;
}
if (myread(fd, p, len, devmem) == -1)
{
free(p);
return NULL;
}
out:
if (close(fd) == -1)
perror(devmem);
return p;
}
int write_dump(size_t base, size_t len, const void *data, const char *dumpfile, int add)
{
FILE *f;
f = fopen(dumpfile, add ? "r+b" : "wb");
if (!f)
{
fprintf(stderr, "%s: ", dumpfile);
perror("fopen");
return -1;
}
if (fseek(f, base, SEEK_SET) != 0)
{
fprintf(stderr, "%s: ", dumpfile);
perror("fseek");
goto err_close;
}
if (fwrite(data, len, 1, f) != 1)
{
fprintf(stderr, "%s: ", dumpfile);
perror("fwrite");
goto err_close;
}
if (fclose(f))
{
fprintf(stderr, "%s: ", dumpfile);
perror("fclose");
return -1;
}
return 0;
err_close:
fclose(f);
return -1;
}
/* Returns end - start + 1, assuming start < end */
u64 u64_range(u64 start, u64 end)
{
u64 res;
res.h = end.h - start.h;
res.l = end.l - start.l;
if (end.l < start.l)
res.h--;
if (++res.l == 0)
res.h++;
return res;
}

30
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/*
* This file is part of the dmidecode project.
*
* Copyright (C) 2003-2010 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <sys/types.h>
#include "types.h"
#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
int checksum(const u8 *buf, size_t len);
void *mem_chunk(size_t base, size_t len, const char *devmem);
int write_dump(size_t base, size_t len, const void *data, const char *dumpfile, int add);
u64 u64_range(u64 start, u64 end);

1
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#define VERSION "2.12"

201
vpddecode.c Normal file
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/*
* IBM Vital Product Data decoder
*
* Copyright (C) 2003-2007 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For the avoidance of doubt the "preferred form" of this code is one which
* is in an open unpatent encumbered format. Where cryptographic key signing
* forms part of the process of creating an executable the information
* including keys needed to generate an equivalently functional executable
* are deemed to be part of the source code.
*
* References:
* - IBM "Using the BIOS Build ID to identify Thinkpad systems"
* Revision 2006-01-31
* http://www-307.ibm.com/pc/support/site.wss/MIGR-45120.html
*
* Notes:
* - Main part of the code is taken directly from biosdecode, with an
* additional command line interface and a few experimental features.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "version.h"
#include "config.h"
#include "types.h"
#include "util.h"
#include "vpdopt.h"
static void print_entry(const char *name, const u8 *p, size_t len)
{
size_t i;
if (name != NULL)
printf("%s: ", name);
for (i = 0; i < len; i++)
{
/* ASCII filtering */
if (p[i] >= 32 && p[i] < 127)
printf("%c", p[i]);
else if (p[i] != 0)
printf(".");
}
printf("\n");
}
static void dump(const u8 *p, u8 len)
{
int done, i, min;
for (done = 0; done < len; done += 16)
{
printf("%02X:", done);
min = (len - done < 16) ? len - done : 16;
/* As hexadecimal first */
for (i = 0; i < min; i++)
printf(" %02X", p[done + i]);
for (; i < 16; i++) /* Complete line if needed */
printf(" ");
printf(" ");
/* And now as text, with ASCII filtering */
for (i = 0; i < min; i++)
printf("%c", (p[done + i] >= 32 && p[done + i] < 127) ?
p[done + i] : '.');
printf("\n");
}
}
static int decode(const u8 *p)
{
if (p[5] < 0x30)
return 0;
/* XSeries have longer records, exact length seems to vary. */
if (!(p[5] >= 0x45 && checksum(p, p[5]))
/* Some Netvista seem to work with this. */
&& !(checksum(p, 0x30))
/* The Thinkpad/Thinkcentre checksum does *not* include the first
13 bytes. */
&& !(checksum(p + 0x0D, 0x30 - 0x0D)))
{
/* A few systems have a bad checksum (xSeries 325, 330, 335
and 345 with early BIOS) but the record is otherwise
valid. */
if (!(opt.flags & FLAG_QUIET))
printf("# Bad checksum!\n");
}
if (opt.string != NULL)
{
if (opt.string->offset + opt.string->len < p[5])
print_entry(NULL, p + opt.string->offset,
opt.string->len);
return 1;
}
print_entry("BIOS Build ID", p + 0x0D, 9);
print_entry("Box Serial Number", p + 0x16, 7);
print_entry("Motherboard Serial Number", p + 0x1D, 11);
print_entry("Machine Type/Model", p + 0x28, 7);
if (p[5] < 0x44)
return 1;
print_entry("BIOS Release Date", p + 0x30, 8);
print_entry("Default Flash Image File Name", p + 0x38, 12);
if (p[5] >= 0x46 && p[0x44] != 0x00)
{
printf("%s: %u\n", "BIOS Revision", p[0x44]);
}
return 1;
}
int main(int argc, char * const argv[])
{
u8 *buf;
int found = 0;
unsigned int fp;
if (sizeof(u8) != 1)
{
fprintf(stderr, "%s: compiler incompatibility\n", argv[0]);
exit(255);
}
/* Set default option values */
opt.devmem = DEFAULT_MEM_DEV;
opt.flags = 0;
if (parse_command_line(argc, argv)<0)
exit(2);
if (opt.flags & FLAG_HELP)
{
print_help();
return 0;
}
if (opt.flags & FLAG_VERSION)
{
printf("%s\n", VERSION);
return 0;
}
if (!(opt.flags & FLAG_QUIET))
printf("# vpddecode %s\n", VERSION);
if ((buf = mem_chunk(0xF0000, 0x10000, opt.devmem)) == NULL)
exit(1);
for (fp = 0; fp <= 0xFFF0; fp += 4)
{
u8 *p = buf + fp;
if (memcmp((char *)p, "\252\125VPD", 5) == 0
&& fp + p[5] - 1 <= 0xFFFF)
{
if (fp % 16 && !(opt.flags & FLAG_QUIET))
printf("# Unaligned address (%#x)\n",
0xf0000 + fp);
if (opt.flags & FLAG_DUMP)
{
dump(p, p[5]);
found++;
}
else
{
if (decode(p))
found++;
}
}
}
free(buf);
if (!found && !(opt.flags & FLAG_QUIET))
printf("# No VPD structure found, sorry.\n");
return 0;
}

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/*
* Command line handling of vpddecode
* This file is part of the dmidecode project.
*
* Copyright (C) 2005-2007 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <strings.h>
#include <stdlib.h>
#include <getopt.h>
#include "config.h"
#include "util.h"
#include "vpdopt.h"
/* Options are global */
struct opt opt;
/*
* Handling of option --string
*/
/* This lookup table could admittedly be reworked for improved performance.
Due to the low count of items in there at the moment, it did not seem
worth the additional code complexity though. */
static const struct string_keyword opt_string_keyword[] = {
{ "bios-build-id", 0x0D, 9 },
{ "box-serial-number", 0x16, 7 },
{ "motherboard-serial-number", 0x1D, 11 },
{ "machine-type-model", 0x28, 7 },
{ "bios-release-date", 0x30, 8 },
};
static void print_opt_string_list(void)
{
unsigned int i;
fprintf(stderr, "Valid string keywords are:\n");
for (i = 0; i < ARRAY_SIZE(opt_string_keyword); i++)
{
fprintf(stderr, " %s\n", opt_string_keyword[i].keyword);
}
}
static int parse_opt_string(const char *arg)
{
unsigned int i;
if (opt.string)
{
fprintf(stderr, "Only one string can be specified\n");
return -1;
}
for (i = 0; i<ARRAY_SIZE(opt_string_keyword); i++)
{
if (!strcasecmp(arg, opt_string_keyword[i].keyword))
{
opt.string = &opt_string_keyword[i];
return 0;
}
}
fprintf(stderr, "Invalid string keyword: %s\n", arg);
print_opt_string_list();
return -1;
}
/*
* Command line options handling
*/
/* Return -1 on error, 0 on success */
int parse_command_line(int argc, char * const argv[])
{
int option;
const char *optstring = "d:hs:uV";
struct option longopts[] = {
{ "dev-mem", required_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{ "string", required_argument, NULL, 's' },
{ "dump", no_argument, NULL, 'u' },
{ "version", no_argument, NULL, 'V' },
{ 0, 0, 0, 0 }
};
while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1)
switch (option)
{
case 'd':
opt.devmem = optarg;
break;
case 'h':
opt.flags |= FLAG_HELP;
break;
case 's':
if (parse_opt_string(optarg) < 0)
return -1;
opt.flags |= FLAG_QUIET;
break;
case 'u':
opt.flags |= FLAG_DUMP;
break;
case 'V':
opt.flags |= FLAG_VERSION;
break;
case '?':
switch (optopt)
{
case 's':
fprintf(stderr, "String keyword expected\n");
print_opt_string_list();
break;
}
return -1;
}
if ((opt.flags & FLAG_DUMP) && opt.string != NULL)
{
fprintf(stderr, "Options --string and --dump are mutually exclusive\n");
return -1;
}
return 0;
}
void print_help(void)
{
static const char *help =
"Usage: vpddecode [OPTIONS]\n"
"Options are:\n"
" -d, --dev-mem FILE Read memory from device FILE (default: " DEFAULT_MEM_DEV ")\n"
" -h, --help Display this help text and exit\n"
" -s, --string KEYWORD Only display the value of the given VPD string\n"
" -u, --dump Do not decode the VPD records\n"
" -V, --version Display the version and exit\n";
printf("%s", help);
}

45
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/*
* Command line handling of vpddecode
* This file is part of the dmidecode project.
*
* Copyright (C) 2005-2006 Jean Delvare <khali@linux-fr.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <sys/types.h>
struct string_keyword
{
const char *keyword;
off_t offset;
size_t len;
};
struct opt
{
const char *devmem;
unsigned int flags;
const struct string_keyword *string;
};
extern struct opt opt;
#define FLAG_VERSION (1 << 0)
#define FLAG_HELP (1 << 1)
#define FLAG_DUMP (1 << 2)
#define FLAG_QUIET (1 << 3)
int parse_command_line(int argc, char * const argv[]);
void print_help(void);