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Added definition of a UUID and uuid_ntoa() (for debugging), and
implemented smbios_get_uuid().
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Michael Brown
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Nov 21, 2007
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/* | ||
* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>. | ||
* | ||
* 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 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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
*/ | ||
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#include <stdint.h> | ||
#include <stdio.h> | ||
#include <byteswap.h> | ||
#include <gpxe/uuid.h> | ||
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/** @file | ||
* | ||
* Universally unique IDs | ||
* | ||
*/ | ||
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/** | ||
* Convert UUID to printable string | ||
* | ||
* @v uuid UUID | ||
* @ret string UUID in canonical form | ||
*/ | ||
char * uuid_ntoa ( union uuid *uuid ) { | ||
static char buf[37]; /* "00000000-0000-0000-0000-000000000000" */ | ||
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sprintf ( buf, "%08lx-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x", | ||
le32_to_cpu ( uuid->canonical.a ), | ||
le16_to_cpu ( uuid->canonical.b ), | ||
le16_to_cpu ( uuid->canonical.c ), | ||
be16_to_cpu ( uuid->canonical.d ), | ||
uuid->canonical.e[0], uuid->canonical.e[1], | ||
uuid->canonical.e[2], uuid->canonical.e[3], | ||
uuid->canonical.e[4], uuid->canonical.e[5] ); | ||
return buf; | ||
} |
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#ifndef _GPXE_UUID_H | ||
#define _GPXE_UUID_H | ||
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/** @file | ||
* | ||
* Universally unique IDs | ||
*/ | ||
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#include <stdint.h> | ||
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/** A universally unique ID */ | ||
union uuid { | ||
/** Canonical form (00000000-0000-0000-0000-000000000000) */ | ||
struct { | ||
/** 8 hex digits, little-endian */ | ||
uint32_t a; | ||
/** 2 hex digits, little-endian */ | ||
uint16_t b; | ||
/** 2 hex digits, little-endian */ | ||
uint16_t c; | ||
/** 2 hex digits, big-endian */ | ||
uint16_t d; | ||
/** 12 hex digits, big-endian */ | ||
uint8_t e[6]; | ||
} canonical; | ||
uint8_t raw[16]; | ||
}; | ||
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extern char * uuid_ntoa ( union uuid *uuid ); | ||
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#endif /* _GPXE_UUID_H */ |