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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim:expandtab:autoindent:tabstop=4:shiftwidth=4:filetype=c:cindent:textwidth=0:
*
* Copyright (C) 2005 Dell Inc.
* by Michael Brown <Michael_E_Brown@dell.com>
* Licensed under the Open Software License version 2.1
*
* Alternatively, 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.
*/
// compat header should always be first header if including system headers
#define LIBSMBIOS_SOURCE
#include "smbios/compat.h"
#include <sstream>
#include <string.h>
#include "smbios/IMemory.h"
#include "SmbiosImpl.h"
// message.h should be included last.
#include "smbios/message.h"
using namespace smbiosLowlevel;
using namespace std;
#if defined(DEBUG_SMBIOS_STRATEGY)
# define DCOUT(line) do { cout << line; } while(0)
# define DCERR(line) do { cerr << line; } while(0)
#else
# define DCOUT(line) do {} while(0)
# define DCERR(line) do {} while(0)
#endif
#if 1
#define EFIVARS_FILE_le266 "/proc/efi/systab"
#define EFIVARS_FILE_gt266 "/sys/firmware/efi/systab"
#else
// for debugging
#define EFIVARS_FILE_le266 "/home/michael_e_brown/cc/libsmbios_proj/libsmbios/foo.txt"
#define EFIVARS_FILE_gt266 "/home/michael_e_brown/cc/libsmbios_proj/libsmbios/foo.txt"
#endif
namespace smbios
{
// allocates no memory, constructs no objects.
// can raise an exception
void SmbiosLinuxEFIStrategy::getSmbiosTableHeader(smbiosLowlevel::smbios_table_entry_point *table_header, bool strict)
{
ParseExceptionImpl parseException;
parseException.setMessageString(_("EFI support not found"));
FILE *fh = NULL;
if ( (fh=fopen(EFIVARS_FILE_le266, "r")) == NULL &&
(fh=fopen(EFIVARS_FILE_gt266, "r")) == NULL)
throw(parseException);
DCERR("Found EFI systab. Reading offset..." << endl);
// read lines
char line[256] = {0,};
while(NULL != fgets(line, sizeof(line)-1, fh))
{
char *varName=line;
char *varValue=line;
varValue = strchr(line, '=');
if(!varValue)
continue;
*(varValue++) = '\0';
if (0 == strcmp(varName, "SMBIOS"))
{
// offset is in parent class and locks down header
// to only search at specified offset
offset = strtol(varValue, NULL, 0);
DCERR("Found SMBIOS address: " << hex << offset << "." << endl);
}
}
fclose(fh);
if(offset)
SmbiosMemoryStrategy::getSmbiosTableHeader(table_header, strict);
else
throw(parseException);
DCERR("Parsed SMBIOS table." << endl);
}
}
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