1 files changed, 0 insertions, 336 deletions
diff --git a/gpxe/src/arch/i386/image/eltorito.c b/gpxe/src/arch/i386/image/eltorito.c
deleted file mode 100644
index 53eb2c02..00000000
--- a/gpxe/src/arch/i386/image/eltorito.c
+++ /dev/null
@@ -1,336 +0,0 @@
-/*
- * 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.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-/**
- * @file
- *
- * El Torito bootable ISO image format
- *
- */
-
-#include <stdint.h>
-#include <errno.h>
-#include <assert.h>
-#include <realmode.h>
-#include <bootsector.h>
-#include <int13.h>
-#include <gpxe/uaccess.h>
-#include <gpxe/image.h>
-#include <gpxe/segment.h>
-#include <gpxe/ramdisk.h>
-#include <gpxe/init.h>
-
-#define ISO9660_BLKSIZE 2048
-#define ELTORITO_VOL_DESC_OFFSET ( 17 * ISO9660_BLKSIZE )
-
-/** An El Torito Boot Record Volume Descriptor */
-struct eltorito_vol_desc {
-	/** Boot record indicator; must be 0 */
-	uint8_t record_indicator;
-	/** ISO-9660 identifier; must be "CD001" */
-	uint8_t iso9660_id[5];
-	/** Version, must be 1 */
-	uint8_t version;
-	/** Boot system indicator; must be "EL TORITO SPECIFICATION" */
-	uint8_t system_indicator[32];
-	/** Unused */
-	uint8_t unused[32];
-	/** Boot catalog sector */
-	uint32_t sector;
-} __attribute__ (( packed ));
-
-/** An El Torito Boot Catalog Validation Entry */
-struct eltorito_validation_entry {
-	/** Header ID; must be 1 */
-	uint8_t header_id;
-	/** Platform ID
-	 *
-	 * 0 = 80x86
-	 * 1 = PowerPC
-	 * 2 = Mac
-	 */
-	uint8_t platform_id;
-	/** Reserved */
-	uint16_t reserved;
-	/** ID string */
-	uint8_t id_string[24];
-	/** Checksum word */
-	uint16_t checksum;
-	/** Signature; must be 0xaa55 */
-	uint16_t signature;
-} __attribute__ (( packed ));
-
-/** A bootable entry in the El Torito Boot Catalog */
-struct eltorito_boot_entry {
-	/** Boot indicator
-	 *
-	 * Must be @c ELTORITO_BOOTABLE for a bootable ISO image
-	 */
-	uint8_t indicator;
-	/** Media type
-	 *
-	 */
-	uint8_t media_type;
-	/** Load segment */
-	uint16_t load_segment;
-	/** System type */
-	uint8_t filesystem;
-	/** Unused */
-	uint8_t reserved_a;
-	/** Sector count */
-	uint16_t length;
-	/** Starting sector */
-	uint32_t start;
-	/** Unused */
-	uint8_t reserved_b[20];
-} __attribute__ (( packed ));
-
-/** Boot indicator for a bootable ISO image */
-#define ELTORITO_BOOTABLE 0x88
-
-/** El Torito media types */
-enum eltorito_media_type {
-	/** No emulation */
-	ELTORITO_NO_EMULATION = 0,
-};
-
-struct image_type eltorito_image_type __image_type ( PROBE_NORMAL );
-
-/**
- * Calculate 16-bit word checksum
- *
- * @v data		Data to checksum
- * @v len		Length (in bytes, must be even)
- * @ret sum		Checksum
- */
-static unsigned int word_checksum ( void *data, size_t len ) {
-	uint16_t *words;
-	uint16_t sum = 0;
-
-	for ( words = data ; len ; words++, len -= 2 ) {
-		sum += *words;
-	}
-	return sum;
-}
-
-/**
- * Execute El Torito image
- *
- * @v image		El Torito image
- * @ret rc		Return status code
- */
-static int eltorito_exec ( struct image *image ) {
-	struct ramdisk ramdisk;
-	struct int13_drive int13_drive;
-	unsigned int load_segment = image->priv.ul;
-	unsigned int load_offset = ( load_segment ? 0 : 0x7c00 );
-	int rc;
-
-	memset ( &ramdisk, 0, sizeof ( ramdisk ) );
-	init_ramdisk ( &ramdisk, image->data, image->len, ISO9660_BLKSIZE );
-	
-	memset ( &int13_drive, 0, sizeof ( int13_drive ) );
-	int13_drive.blockdev = &ramdisk.blockdev;
-	register_int13_drive ( &int13_drive );
-
-	if ( ( rc = call_bootsector ( load_segment, load_offset, 
-				      int13_drive.drive ) ) != 0 ) {
-		DBGC ( image, "ElTorito %p boot failed: %s\n",
-		       image, strerror ( rc ) );
-		goto err;
-	}
-	
-	rc = -ECANCELED; /* -EIMPOSSIBLE */
- err:
-	unregister_int13_drive ( &int13_drive );
-	return rc;
-}
-
-/**
- * Read and verify El Torito Boot Record Volume Descriptor
- *
- * @v image		El Torito file
- * @ret catalog_offset	Offset of Boot Catalog
- * @ret rc		Return status code
- */
-static int eltorito_read_voldesc ( struct image *image,
-				   unsigned long *catalog_offset ) {
-	static const struct eltorito_vol_desc vol_desc_signature = {
-		.record_indicator = 0,
-		.iso9660_id = "CD001",
-		.version = 1,
-		.system_indicator = "EL TORITO SPECIFICATION",
-	};
-	struct eltorito_vol_desc vol_desc;
-
-	/* Sanity check */
-	if ( image->len < ( ELTORITO_VOL_DESC_OFFSET + ISO9660_BLKSIZE ) ) {
-		DBGC ( image, "ElTorito %p too short\n", image );
-		return -ENOEXEC;
-	}
-
-	/* Read and verify Boot Record Volume Descriptor */
-	copy_from_user ( &vol_desc, image->data, ELTORITO_VOL_DESC_OFFSET,
-			 sizeof ( vol_desc ) );
-	if ( memcmp ( &vol_desc, &vol_desc_signature,
-		      offsetof ( typeof ( vol_desc ), sector ) ) != 0 ) {
-		DBGC ( image, "ElTorito %p invalid Boot Record Volume "
-		       "Descriptor\n", image );
-		return -ENOEXEC;
-	}
-	*catalog_offset = ( vol_desc.sector * ISO9660_BLKSIZE );
-
-	DBGC ( image, "ElTorito %p boot catalog at offset %#lx\n",
-	       image, *catalog_offset );
-
-	return 0;
-}
-
-/**
- * Read and verify El Torito Boot Catalog
- *
- * @v image		El Torito file
- * @v catalog_offset	Offset of Boot Catalog
- * @ret boot_entry	El Torito boot entry
- * @ret rc		Return status code
- */
-static int eltorito_read_catalog ( struct image *image,
-				   unsigned long catalog_offset,
-				   struct eltorito_boot_entry *boot_entry ) {
-	struct eltorito_validation_entry validation_entry;
-
-	/* Sanity check */
-	if ( image->len < ( catalog_offset + ISO9660_BLKSIZE ) ) {
-		DBGC ( image, "ElTorito %p bad boot catalog offset %#lx\n",
-		       image, catalog_offset );
-		return -ENOEXEC;
-	}
-
-	/* Read and verify the Validation Entry of the Boot Catalog */
-	copy_from_user ( &validation_entry, image->data, catalog_offset,
-			 sizeof ( validation_entry ) );
-	if ( word_checksum ( &validation_entry,
-			     sizeof ( validation_entry ) ) != 0 ) {
-		DBGC ( image, "ElTorito %p bad Validation Entry checksum\n",
-		       image );
-		return -ENOEXEC;
-	}
-
-	/* Read and verify the Initial/Default entry */
-	copy_from_user ( boot_entry, image->data,
-			 ( catalog_offset + sizeof ( validation_entry ) ),
-			 sizeof ( *boot_entry ) );
-	if ( boot_entry->indicator != ELTORITO_BOOTABLE ) {
-		DBGC ( image, "ElTorito %p not bootable\n", image );
-		return -ENOEXEC;
-	}
-	if ( boot_entry->media_type != ELTORITO_NO_EMULATION ) {
-		DBGC ( image, "ElTorito %p cannot support media type %d\n",
-		       image, boot_entry->media_type );
-		return -ENOTSUP;
-	}
-
-	DBGC ( image, "ElTorito %p media type %d segment %04x\n",
-	       image, boot_entry->media_type, boot_entry->load_segment );
-
-	return 0;
-}
-
-/**
- * Load El Torito virtual disk image into memory
- *
- * @v image		El Torito file
- * @v boot_entry	El Torito boot entry
- * @ret rc		Return status code
- */
-static int eltorito_load_disk ( struct image *image,
-				struct eltorito_boot_entry *boot_entry ) {
-	unsigned long start = ( boot_entry->start * ISO9660_BLKSIZE );
-	unsigned long length = ( boot_entry->length * ISO9660_BLKSIZE );
-	unsigned int load_segment;
-	userptr_t buffer;
-	int rc;
-
-	/* Sanity check */
-	if ( image->len < ( start + length ) ) {
-		DBGC ( image, "ElTorito %p virtual disk lies outside image\n",
-		       image );
-		return -ENOEXEC;
-	}
-	DBGC ( image, "ElTorito %p virtual disk at %#lx+%#lx\n",
-	       image, start, length );
-
-	/* Calculate load address */
-	load_segment = boot_entry->load_segment;
-	buffer = real_to_user ( load_segment, ( load_segment ? 0 : 0x7c00 ) );
-
-	/* Verify and prepare segment */
-	if ( ( rc = prep_segment ( buffer, length, length ) ) != 0 ) {
-		DBGC ( image, "ElTorito %p could not prepare segment: %s\n",
-		       image, strerror ( rc ) );
-		return rc;
-	}
-
-	/* Copy image to segment */
-	memcpy_user ( buffer, 0, image->data, start, length );
-
-	return 0;
-}
-
-/**
- * Load El Torito image into memory
- *
- * @v image		El Torito file
- * @ret rc		Return status code
- */
-static int eltorito_load ( struct image *image ) {
-	struct eltorito_boot_entry boot_entry;
-	unsigned long bootcat_offset;
-	int rc;
-
-	/* Read Boot Record Volume Descriptor, if present */
-	if ( ( rc = eltorito_read_voldesc ( image, &bootcat_offset ) ) != 0 )
-		return rc;
-
-	/* This is an El Torito image, valid or otherwise */
-	if ( ! image->type )
-		image->type = &eltorito_image_type;
-
-	/* Read Boot Catalog */
-	if ( ( rc = eltorito_read_catalog ( image, bootcat_offset,
-					    &boot_entry ) ) != 0 )
-		return rc;
-
-	/* Load Virtual Disk image */
-	if ( ( rc = eltorito_load_disk ( image, &boot_entry ) ) != 0 )
-		return rc;
-
-	/* Record load segment in image private data field */
-	image->priv.ul = boot_entry.load_segment;
-
-	return 0;
-}
-
-/** El Torito image type */
-struct image_type eltorito_image_type __image_type ( PROBE_NORMAL ) = {
-	.name = "El Torito",
-	.load = eltorito_load,
-	.exec = eltorito_exec,
-};