diff options
Diffstat (limited to 'contrib/syslinux-4.02/memdisk/eltorito.h')
| -rw-r--r-- | contrib/syslinux-4.02/memdisk/eltorito.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/memdisk/eltorito.h b/contrib/syslinux-4.02/memdisk/eltorito.h new file mode 100644 index 0000000..494c4a1 --- /dev/null +++ b/contrib/syslinux-4.02/memdisk/eltorito.h @@ -0,0 +1,80 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 2009-2010 Shao Miller - All Rights Reserved + * + * 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, Inc., 53 Temple Place Ste 330, + * Boston MA 02111-1307, USA; either version 2 of the License, or + * (at your option) any later version; incorporated herein by reference. + * + * ----------------------------------------------------------------------- */ + +/* + * eltorito.h + * + * EDD-4 El Torito structures and debugging routines + */ + +#include <stdint.h> +#include "compiler.h" + +/* EDD-4 Bootable Optical Disc Drive Boot Volume Descriptor */ +MEMDISK_PACKED_PREFIX +struct edd4_bvd { + uint8_t boot_rec_ind; /* Boot Record Indicator */ + uint8_t iso9660_id[5]; /* ISO9660 ID */ + uint8_t ver; /* Descriptor Version */ + uint8_t eltorito[32]; /* "EL TORITO" etc. */ + uint8_t res1[32]; /* Reserved */ + uint32_t boot_cat; /* Boot catalog sector */ + uint8_t res2[1973]; /* Reserved */ +} MEMDISK_PACKED_POSTFIX; + +MEMDISK_PACKED_PREFIX +struct validation_entry { + uint8_t header_id; /* Header ID */ + uint8_t platform_id; /* Platform ID */ + uint16_t res1; /* Reserved */ + uint8_t id_string[24]; /* Manufacturer */ + uint16_t checksum; /* Sums with whole record to zero */ + uint8_t key55; /* Key byte 0x55 */ + uint8_t keyAA; /* Key byte 0xAA */ +} MEMDISK_PACKED_POSTFIX; + +MEMDISK_PACKED_PREFIX +struct initial_entry { + uint8_t header_id; /* Header ID */ + uint8_t media_type; /* Media type */ + uint16_t load_seg; /* Load segment */ + uint8_t system_type; /* (Filesystem ID) */ + uint8_t res1; /* Reserved */ + uint16_t sect_count; /* Emulated sectors to load */ + uint32_t load_block; /* Starting sector of image */ + uint8_t res2[4]; /* Reserved */ +} MEMDISK_PACKED_POSTFIX; + +/* EDD-4 Bootable Optical Disc Drive Boot Catalog (fixed-size portions) */ +MEMDISK_PACKED_PREFIX +struct edd4_bootcat { + struct validation_entry validation_entry; + struct initial_entry initial_entry; +} MEMDISK_PACKED_POSTFIX; + +/* EDD-4 CD Specification Packet */ +MEMDISK_PACKED_PREFIX +struct edd4_cd_pkt { + uint8_t size; /* Packet size */ + uint8_t type; /* Boot media type (flags) */ + uint8_t driveno; /* INT 13h drive number */ + uint8_t controller; /* Controller index */ + uint32_t start; /* Starting LBA of image */ + uint16_t devno; /* Device number */ + uint16_t userbuf; /* User buffer segment */ + uint16_t load_seg; /* Load segment */ + uint16_t sect_count; /* Emulated sectors to load */ + uint8_t geom1; /* Cylinders bits 0 thru 7 */ + uint8_t geom2; /* Sects/track 0 thru 5, cyls 8, 9 */ + uint8_t geom3; /* Heads */ +} MEMDISK_PACKED_POSTFIX; + |