[people/ms/u-boot.git] / disk / part_iso.c

/*
 * (C) Copyright 2001
 * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <command.h>
#include "part_iso.h"

#ifdef HAVE_BLOCK_DEVICE

/* #define	ISO_PART_DEBUG */

#ifdef	ISO_PART_DEBUG
#define	PRINTF(fmt,args...)	printf (fmt ,##args)
#else
#define PRINTF(fmt,args...)
#endif

/* enable this if CDs are written with the PowerPC Platform ID */
#undef CHECK_FOR_POWERPC_PLATTFORM
#define CD_SECTSIZE 2048

static unsigned char tmpbuf[CD_SECTSIZE];

/* Convert char[4] in little endian format to the host format integer
 */
static inline unsigned long le32_to_int(unsigned char *le32)
{
    return ((le32[3] << 24) +
	    (le32[2] << 16) +
	    (le32[1] << 8) +
	     le32[0]
	   );
}
/* Convert char[2] in little endian format to the host format integer
 */
static inline unsigned short le16_to_int(unsigned char *le16)
{
    return ((le16[1] << 8) +
	   le16[0]
	   );
}


/* only boot records will be listed as valid partitions */
int part_get_info_iso_verb(struct blk_desc *dev_desc, int part_num,
			   disk_partition_t *info, int verb)
{
	int i,offset,entry_num;
	unsigned short *chksumbuf;
	unsigned short chksum;
	unsigned long newblkaddr,blkaddr,lastsect,bootaddr;
	iso_boot_rec_t *pbr = (iso_boot_rec_t	*)tmpbuf; /* boot record */
	iso_pri_rec_t *ppr = (iso_pri_rec_t	*)tmpbuf;	/* primary desc */
	iso_val_entry_t *pve = (iso_val_entry_t *)tmpbuf;
	iso_init_def_entry_t *pide;

	if (dev_desc->blksz != CD_SECTSIZE)
		return -1;

	/* the first sector (sector 0x10) must be a primary volume desc */
	blkaddr=PVD_OFFSET;
	if (dev_desc->block_read(dev_desc, PVD_OFFSET, 1, (ulong *)tmpbuf) != 1)
		return -1;
	if(ppr->desctype!=0x01) {
		if(verb)
			printf ("** First descriptor is NOT a primary desc on %d:%d **\n",
				dev_desc->dev, part_num);
		return (-1);
	}
	if(strncmp((char *)ppr->stand_ident,"CD001",5)!=0) {
		if(verb)
			printf ("** Wrong ISO Ident: %s on %d:%d **\n",
				ppr->stand_ident,dev_desc->dev, part_num);
		return (-1);
	}
	lastsect= ((ppr->firstsek_LEpathtab1_LE & 0x000000ff)<<24) +
		  ((ppr->firstsek_LEpathtab1_LE & 0x0000ff00)<< 8) +
		  ((ppr->firstsek_LEpathtab1_LE & 0x00ff0000)>> 8) +
		  ((ppr->firstsek_LEpathtab1_LE & 0xff000000)>>24) ;
	info->blksz=ppr->secsize_BE; /* assuming same block size for all entries */
	PRINTF(" Lastsect:%08lx\n",lastsect);
	for(i=blkaddr;i<lastsect;i++) {
		PRINTF("Reading block %d\n", i);
		if (dev_desc->block_read(dev_desc, i, 1, (ulong *)tmpbuf) != 1)
			return -1;
		if(ppr->desctype==0x00)
			break; /* boot entry found */
		if(ppr->desctype==0xff) {
			if(verb)
				printf ("** No valid boot catalog found on %d:%d **\n",
					dev_desc->dev, part_num);
			return (-1);
		}
	}
	/* boot entry found */
	if(strncmp(pbr->ident_str,"EL TORITO SPECIFICATION",23)!=0) {
		if(verb)
			printf ("** Wrong El Torito ident: %s on %d:%d **\n",
				pbr->ident_str,dev_desc->dev, part_num);
		return (-1);
	}
	bootaddr=le32_to_int(pbr->pointer);
	PRINTF(" Boot Entry at: %08lX\n",bootaddr);
	if (dev_desc->block_read(dev_desc, bootaddr, 1, (ulong *)tmpbuf) != 1) {
		if(verb)
			printf ("** Can't read Boot Entry at %lX on %d:%d **\n",
				bootaddr,dev_desc->dev, part_num);
		return (-1);
	}
	chksum=0;
	chksumbuf = (unsigned short *)tmpbuf;
	for(i=0;i<0x10;i++)
		chksum+=((chksumbuf[i] &0xff)<<8)+((chksumbuf[i] &0xff00)>>8);
	if(chksum!=0) {
		if(verb)
			printf ("** Checksum Error in booting catalog validation entry on %d:%d **\n",
				dev_desc->dev, part_num);
		return (-1);
	}
	if((pve->key[0]!=0x55)||(pve->key[1]!=0xAA)) {
		if(verb)
			printf ("** Key 0x55 0xAA error on %d:%d **\n",
				dev_desc->dev, part_num);
		return(-1);
	}
#ifdef CHECK_FOR_POWERPC_PLATTFORM
	if(pve->platform!=0x01) {
		if(verb)
			printf ("** No PowerPC platform CD on %d:%d **\n",
				dev_desc->dev, part_num);
		return(-1);
	}
#endif
	/* the validation entry seems to be ok, now search the "partition" */
	entry_num=0;
	offset=0x20;
	strcpy((char *)info->type, "U-Boot");
	switch(dev_desc->if_type) {
		case IF_TYPE_IDE:
		case IF_TYPE_SATA:
		case IF_TYPE_ATAPI:
			sprintf ((char *)info->name, "hd%c%d",
				'a' + dev_desc->dev, part_num);
			break;
		case IF_TYPE_SCSI:
			sprintf ((char *)info->name, "sd%c%d",
				'a' + dev_desc->dev, part_num);
			break;
		case IF_TYPE_USB:
			sprintf ((char *)info->name, "usbd%c%d",
				'a' + dev_desc->dev, part_num);
			break;
		case IF_TYPE_DOC:
			sprintf ((char *)info->name, "docd%c%d",
				'a' + dev_desc->dev, part_num);
			break;
		default:
			sprintf ((char *)info->name, "xx%c%d",
				'a' + dev_desc->dev, part_num);
			break;
	}
	/* the bootcatalog (including validation Entry) is limited to 2048Bytes
	 * (63 boot entries + validation entry) */
	 while(offset<2048) {
		pide=(iso_init_def_entry_t *)&tmpbuf[offset];
		if ((pide->boot_ind==0x88) ||
		    (pide->boot_ind==0x00)) { /* Header Id for default Sections Entries */
			if(entry_num==part_num) { /* part found */
				goto found;
			}
			entry_num++; /* count partitions Entries (boot and non bootables */
			offset+=0x20;
			continue;
		}
		if ((pide->boot_ind==0x90) ||	/* Section Header Entry */
		    (pide->boot_ind==0x91) ||	/* Section Header Entry (last) */
		    (pide->boot_ind==0x44)) {	/* Extension Indicator */
			offset+=0x20; /* skip unused entries */
		}
		else {
			if(verb)
				printf ("** Partition %d not found on device %d **\n",
					part_num,dev_desc->dev);
			return(-1);
		}
	}
	/* if we reach this point entire sector has been
	 * searched w/o succsess */
	if(verb)
		printf ("** Partition %d not found on device %d **\n",
			part_num,dev_desc->dev);
	return(-1);
found:
	if(pide->boot_ind!=0x88) {
		if(verb)
			printf ("** Partition %d is not bootable on device %d **\n",
				part_num,dev_desc->dev);
		return (-1);
	}
	switch(pide->boot_media) {
		case 0x00: /* no emulation */
			info->size=le16_to_int(pide->sec_cnt)>>2;
			break;
		case 0x01:	info->size=2400>>2; break; /* 1.2MByte Floppy */
		case 0x02:	info->size=2880>>2; break; /* 1.44MByte Floppy */
		case 0x03:	info->size=5760>>2; break; /* 2.88MByte Floppy */
		case 0x04:	info->size=2880>>2; break; /* dummy (HD Emulation) */
		default:	info->size=0; break;
	}
	newblkaddr=le32_to_int(pide->rel_block_addr);
	info->start=newblkaddr;
	PRINTF(" part %d found @ %lx size %lx\n",part_num,newblkaddr,info->size);
	return 0;
}

static int part_get_info_iso(struct blk_desc *dev_desc, int part_num,
				  disk_partition_t *info)
{
	return part_get_info_iso_verb(dev_desc, part_num, info, 1);
}

static void print_part_iso(struct blk_desc *dev_desc)
{
	disk_partition_t info;
	int i;

	if (part_get_info_iso_verb(dev_desc, 0, &info, 0) == -1) {
		printf("** No boot partition found on device %d **\n",dev_desc->dev);
		return;
	}
	printf("Part   Start     Sect x Size Type\n");
	i=0;
	do {
		printf(" %2d " LBAFU " " LBAFU " %6ld %.32s\n",
		       i, info.start, info.size, info.blksz, info.type);
		i++;
	} while (part_get_info_iso_verb(dev_desc, i, &info, 0) != -1);
}

static int test_part_iso(struct blk_desc *dev_desc)
{
	disk_partition_t info;

	return part_get_info_iso_verb(dev_desc, 0, &info, 0);
}

U_BOOT_PART_TYPE(iso) = {
	.name		= "ISO",
	.part_type	= PART_TYPE_ISO,
	.get_info	= part_get_info_iso,
	.print		= print_part_iso,
	.test		= test_part_iso,
};
#endif
Commit	Line	Data
cc1c8a13 WD	1	/*
	2	* (C) Copyright 2001
	3	* Denis Peter, MPL AG Switzerland, d.peter@mpl.ch.
	4	*
3765b3e7	5	* SPDX-License-Identifier: GPL-2.0+
cc1c8a13 WD	6	*/
	7
	8	#include <common.h>
	9	#include <command.h>
cc1c8a13 WD	10	#include "part_iso.h"
cc1c8a13 WD	11
2c1af9dc	12	#ifdef HAVE_BLOCK_DEVICE
cc1c8a13	13
1968e615	14	/* #define ISO_PART_DEBUG */
cc1c8a13 WD	15
	16	#ifdef ISO_PART_DEBUG
	17	#define PRINTF(fmt,args...) printf (fmt ,##args)
	18	#else
	19	#define PRINTF(fmt,args...)
	20	#endif
	21
	22	/* enable this if CDs are written with the PowerPC Platform ID */
	23	#undef CHECK_FOR_POWERPC_PLATTFORM
	24	#define CD_SECTSIZE 2048
	25
	26	static unsigned char tmpbuf[CD_SECTSIZE];
	27
	28	/* Convert char[4] in little endian format to the host format integer
	29	*/
	30	static inline unsigned long le32_to_int(unsigned char *le32)
	31	{
	32	return ((le32[3] << 24) +
	33	(le32[2] << 16) +
	34	(le32[1] << 8) +
	35	le32[0]
	36	);
	37	}
	38	/* Convert char[2] in little endian format to the host format integer
	39	*/
	40	static inline unsigned short le16_to_int(unsigned char *le16)
	41	{
	42	return ((le16[1] << 8) +
	43	le16[0]
	44	);
	45	}
	46
	47
	48	/* only boot records will be listed as valid partitions */
3e8bd469 SG	49	int part_get_info_iso_verb(struct blk_desc *dev_desc, int part_num,
3e8bd469 SG	50	disk_partition_t *info, int verb)
cc1c8a13 WD	51	{
	52	int i,offset,entry_num;
	53	unsigned short *chksumbuf;
	54	unsigned short chksum;
	55	unsigned long newblkaddr,blkaddr,lastsect,bootaddr;
	56	iso_boot_rec_t pbr = (iso_boot_rec_t )tmpbuf; /* boot record */
	57	iso_pri_rec_t ppr = (iso_pri_rec_t )tmpbuf; /* primary desc */
	58	iso_val_entry_t pve = (iso_val_entry_t )tmpbuf;
	59	iso_init_def_entry_t *pide;
	60
d7ea4d4d EE	61	if (dev_desc->blksz != CD_SECTSIZE)
	62	return -1;
	63
cc1c8a13 WD	64	/* the first sector (sector 0x10) must be a primary volume desc */
cc1c8a13 WD	65	blkaddr=PVD_OFFSET;
7c4213f6 SW	66	if (dev_desc->block_read(dev_desc, PVD_OFFSET, 1, (ulong *)tmpbuf) != 1)
7c4213f6 SW	67	return -1;
cc1c8a13 WD	68	if(ppr->desctype!=0x01) {
	69	if(verb)
	70	printf (" First descriptor is NOT a primary desc on %d:%d \n",
	71	dev_desc->dev, part_num);
	72	return (-1);
	73	}
77ddac94	74	if(strncmp((char *)ppr->stand_ident,"CD001",5)!=0) {
cc1c8a13 WD	75	if(verb)
	76	printf (" Wrong ISO Ident: %s on %d:%d \n",
	77	ppr->stand_ident,dev_desc->dev, part_num);
	78	return (-1);
	79	}
	80	lastsect= ((ppr->firstsek_LEpathtab1_LE & 0x000000ff)<<24) +
	81	((ppr->firstsek_LEpathtab1_LE & 0x0000ff00)<< 8) +
	82	((ppr->firstsek_LEpathtab1_LE & 0x00ff0000)>> 8) +
	83	((ppr->firstsek_LEpathtab1_LE & 0xff000000)>>24) ;
	84	info->blksz=ppr->secsize_BE; /* assuming same block size for all entries */
	85	PRINTF(" Lastsect:%08lx\n",lastsect);
	86	for(i=blkaddr;i<lastsect;i++) {
c7de829c	87	PRINTF("Reading block %d\n", i);
7c4213f6 SW	88	if (dev_desc->block_read(dev_desc, i, 1, (ulong *)tmpbuf) != 1)
7c4213f6 SW	89	return -1;
cc1c8a13 WD	90	if(ppr->desctype==0x00)
	91	break; /* boot entry found */
	92	if(ppr->desctype==0xff) {
	93	if(verb)
	94	printf (" No valid boot catalog found on %d:%d \n",
	95	dev_desc->dev, part_num);
	96	return (-1);
	97	}
	98	}
53677ef1	99	/* boot entry found */
cc1c8a13 WD	100	if(strncmp(pbr->ident_str,"EL TORITO SPECIFICATION",23)!=0) {
	101	if(verb)
	102	printf (" Wrong El Torito ident: %s on %d:%d \n",
	103	pbr->ident_str,dev_desc->dev, part_num);
	104	return (-1);
	105	}
	106	bootaddr=le32_to_int(pbr->pointer);
	107	PRINTF(" Boot Entry at: %08lX\n",bootaddr);
7c4213f6	108	if (dev_desc->block_read(dev_desc, bootaddr, 1, (ulong *)tmpbuf) != 1) {
cc1c8a13 WD	109	if(verb)
	110	printf (" Can't read Boot Entry at %lX on %d:%d \n",
	111	bootaddr,dev_desc->dev, part_num);
	112	return (-1);
	113	}
	114	chksum=0;
	115	chksumbuf = (unsigned short *)tmpbuf;
	116	for(i=0;i<0x10;i++)
	117	chksum+=((chksumbuf[i] &0xff)<<8)+((chksumbuf[i] &0xff00)>>8);
	118	if(chksum!=0) {
	119	if(verb)
	120	printf (" Checksum Error in booting catalog validation entry on %d:%d \n",
	121	dev_desc->dev, part_num);
	122	return (-1);
	123	}
	124	if((pve->key[0]!=0x55)\|\|(pve->key[1]!=0xAA)) {
	125	if(verb)
	126	printf (" Key 0x55 0xAA error on %d:%d \n",
	127	dev_desc->dev, part_num);
	128	return(-1);
	129	}
	130	#ifdef CHECK_FOR_POWERPC_PLATTFORM
	131	if(pve->platform!=0x01) {
	132	if(verb)
	133	printf (" No PowerPC platform CD on %d:%d \n",
	134	dev_desc->dev, part_num);
	135	return(-1);
	136	}
	137	#endif
	138	/* the validation entry seems to be ok, now search the "partition" */
	139	entry_num=0;
	140	offset=0x20;
192bc694	141	strcpy((char *)info->type, "U-Boot");
cc1c8a13 WD	142	switch(dev_desc->if_type) {
cc1c8a13 WD	143	case IF_TYPE_IDE:
c7057b52	144	case IF_TYPE_SATA:
cc1c8a13	145	case IF_TYPE_ATAPI:
71665528 WD	146	sprintf ((char *)info->name, "hd%c%d",
71665528 WD	147	'a' + dev_desc->dev, part_num);
cc1c8a13 WD	148	break;
cc1c8a13 WD	149	case IF_TYPE_SCSI:
71665528 WD	150	sprintf ((char *)info->name, "sd%c%d",
71665528 WD	151	'a' + dev_desc->dev, part_num);
cc1c8a13 WD	152	break;
cc1c8a13 WD	153	case IF_TYPE_USB:
71665528 WD	154	sprintf ((char *)info->name, "usbd%c%d",
71665528 WD	155	'a' + dev_desc->dev, part_num);
cc1c8a13 WD	156	break;
cc1c8a13 WD	157	case IF_TYPE_DOC:
71665528 WD	158	sprintf ((char *)info->name, "docd%c%d",
71665528 WD	159	'a' + dev_desc->dev, part_num);
cc1c8a13 WD	160	break;
cc1c8a13 WD	161	default:
71665528 WD	162	sprintf ((char *)info->name, "xx%c%d",
71665528 WD	163	'a' + dev_desc->dev, part_num);
cc1c8a13 WD	164	break;
	165	}
	166	/* the bootcatalog (including validation Entry) is limited to 2048Bytes
	167	* (63 boot entries + validation entry) */
	168	while(offset<2048) {
	169	pide=(iso_init_def_entry_t *)&tmpbuf[offset];
	170	if ((pide->boot_ind==0x88) \|\|
	171	(pide->boot_ind==0x00)) { /* Header Id for default Sections Entries */
	172	if(entry_num==part_num) { /* part found */
	173	goto found;
	174	}
	175	entry_num++; /* count partitions Entries (boot and non bootables */
	176	offset+=0x20;
	177	continue;
	178	}
	179	if ((pide->boot_ind==0x90) \|\| /* Section Header Entry */
	180	(pide->boot_ind==0x91) \|\| /* Section Header Entry (last) */
	181	(pide->boot_ind==0x44)) { /* Extension Indicator */
	182	offset+=0x20; /* skip unused entries */
	183	}
	184	else {
	185	if(verb)
	186	printf (" Partition %d not found on device %d \n",
	187	part_num,dev_desc->dev);
	188	return(-1);
	189	}
	190	}
	191	/* if we reach this point entire sector has been
	192	* searched w/o succsess */
	193	if(verb)
	194	printf (" Partition %d not found on device %d \n",
	195	part_num,dev_desc->dev);
	196	return(-1);
	197	found:
	198	if(pide->boot_ind!=0x88) {
	199	if(verb)
	200	printf (" Partition %d is not bootable on device %d \n",
	201	part_num,dev_desc->dev);
	202	return (-1);
	203	}
	204	switch(pide->boot_media) {
	205	case 0x00: /* no emulation */
	206	info->size=le16_to_int(pide->sec_cnt)>>2;
	207	break;
	208	case 0x01: info->size=2400>>2; break; /* 1.2MByte Floppy */
	209	case 0x02: info->size=2880>>2; break; /* 1.44MByte Floppy */
	210	case 0x03: info->size=5760>>2; break; /* 2.88MByte Floppy */
	211	case 0x04: info->size=2880>>2; break; /* dummy (HD Emulation) */
	212	default: info->size=0; break;
	213	}
	214	newblkaddr=le32_to_int(pide->rel_block_addr);
	215	info->start=newblkaddr;
	216	PRINTF(" part %d found @ %lx size %lx\n",part_num,newblkaddr,info->size);
	217	return 0;
	218	}
	219
3e8bd469	220	static int part_get_info_iso(struct blk_desc *dev_desc, int part_num,
96e5b03c	221	disk_partition_t *info)
cc1c8a13	222	{
3e8bd469	223	return part_get_info_iso_verb(dev_desc, part_num, info, 1);
cc1c8a13 WD	224	}
cc1c8a13 WD	225
96e5b03c	226	static void print_part_iso(struct blk_desc *dev_desc)
cc1c8a13 WD	227	{
	228	disk_partition_t info;
	229	int i;
3e8bd469 SG	230
3e8bd469 SG	231	if (part_get_info_iso_verb(dev_desc, 0, &info, 0) == -1) {
cc1c8a13 WD	232	printf(" No boot partition found on device %d \n",dev_desc->dev);
	233	return;
	234	}
	235	printf("Part Start Sect x Size Type\n");
	236	i=0;
	237	do {
04735e9c FL	238	printf(" %2d " LBAFU " " LBAFU " %6ld %.32s\n",
04735e9c FL	239	i, info.start, info.size, info.blksz, info.type);
cc1c8a13	240	i++;
3e8bd469	241	} while (part_get_info_iso_verb(dev_desc, i, &info, 0) != -1);
cc1c8a13 WD	242	}
cc1c8a13 WD	243
96e5b03c	244	static int test_part_iso(struct blk_desc *dev_desc)
cc1c8a13 WD	245	{
	246	disk_partition_t info;
	247
3e8bd469	248	return part_get_info_iso_verb(dev_desc, 0, &info, 0);
cc1c8a13 WD	249	}
cc1c8a13 WD	250
96e5b03c SG	251	U_BOOT_PART_TYPE(iso) = {
	252	.name = "ISO",
	253	.part_type = PART_TYPE_ISO,
3e8bd469	254	.get_info = part_get_info_iso,
96e5b03c SG	255	.print = print_part_iso,
	256	.test = test_part_iso,
	257	};
cde5c64d	258	#endif