[thirdparty/util-linux.git] / include / pt-sun.h

/*
 * No copyright is claimed.  This code is in the public domain; do with
 * it what you wish.
 */
#ifndef UTIL_LINUX_PT_SUN_H
#define UTIL_LINUX_PT_SUN_H

#include <stdint.h>

#define SUN_LABEL_MAGIC		0xDABE

/* Supported VTOC setting */
#define SUN_VTOC_SANITY		0x600DDEEE	/* magic number */
#define SUN_VTOC_VERSION	1
#define SUN_MAXPARTITIONS	8

struct sun_disklabel {
	unsigned char label_id[128];   /* Informative text string */

	struct sun_vtoc {
		uint32_t version;     /* version */
		char	 volume_id[8];/* volume name */
		uint16_t nparts;      /* num of partitions */

		struct sun_info {        /* partition information */
			uint16_t id;     /* SUN_TAG_*  */
			uint16_t flags;  /* SUN_FLAG_* */
		} __attribute__ ((packed)) infos[8];

		uint16_t padding;      /* padding */
		uint32_t bootinfo[3];  /* info needed by mboot */
		uint32_t sanity;       /* magic number */
		uint32_t reserved[10]; /* padding */
		uint32_t timestamp[8]; /* partition timestamp */
	} __attribute__ ((packed)) vtoc;

	uint32_t write_reinstruct;     /* sectors to skip, writes */
	uint32_t read_reinstruct;      /* sectors to skip, reads */
	unsigned char spare[148];      /* padding */
	uint16_t rpm;                  /* disk rotational speed */
	uint16_t pcyl;                 /* physical cylinder count */
	uint16_t apc;                  /* extra sects per cylinder */
	uint16_t obs1;
	uint16_t obs2;
	uint16_t intrlv;               /* interleave factor */
	uint16_t ncyl;                 /* data cylinder count */
	uint16_t acyl;                 /* alt. cylinder count */
	uint16_t nhead;                /* tracks per cylinder   <---- */
	uint16_t nsect;                /* sectors per track     <---- */
	uint16_t obs3;
	uint16_t obs4;

	struct sun_partition {         /* partitions */
		uint32_t start_cylinder;
		uint32_t num_sectors;
	} __attribute__ ((packed)) partitions[8];

	uint16_t magic;                /* magic number */
	uint16_t csum;                 /* label xor'd checksum */
} __attribute__ ((packed));


#define SUN_TAG_UNASSIGNED	0x00	/* Unassigned partition */
#define SUN_TAG_BOOT		0x01	/* Boot partition	*/
#define SUN_TAG_ROOT		0x02	/* Root filesystem	*/
#define SUN_TAG_SWAP		0x03	/* Swap partition	*/
#define SUN_TAG_USR		0x04	/* /usr filesystem	*/
#define SUN_TAG_WHOLEDISK	0x05	/* Full-disk slice	*/
#define SUN_TAG_STAND		0x06	/* Stand partition	*/
#define SUN_TAG_VAR		0x07	/* /var filesystem	*/
#define SUN_TAG_HOME		0x08	/* /home filesystem	*/
#define SUN_TAG_ALTSCTR		0x09	/* Alt sector partition	*/
#define SUN_TAG_CACHE		0x0a	/* Cachefs partition	*/
#define SUN_TAG_RESERVED	0x0b	/* SMI reserved data	*/
#define SUN_TAG_LINUX_SWAP	0x82	/* Linux SWAP		*/
#define SUN_TAG_LINUX_NATIVE	0x83	/* Linux filesystem	*/
#define SUN_TAG_LINUX_LVM	0x8e	/* Linux LVM		*/
#define SUN_TAG_LINUX_RAID	0xfd	/* LInux RAID		*/

#define SUN_FLAG_UNMNT		0x01	/* Unmountable partition*/
#define SUN_FLAG_RONLY		0x10	/* Read only		*/

static inline uint16_t sun_pt_checksum(const struct sun_disklabel *label)
{
	const uint16_t *ptr = ((const uint16_t *) (label + 1)) - 1;
	uint16_t sum;

	for (sum = 0; ptr >= ((const uint16_t *) label);)
		sum ^= *ptr--;

	return sum;
}

#endif /* UTIL_LINUX_PT_SUN_H */
Commit	Line	Data
faeb1b64 KZ	1	/*
	2	* No copyright is claimed. This code is in the public domain; do with
	3	* it what you wish.
	4	*/
a08dc0ca KZ	5	#ifndef UTIL_LINUX_PT_SUN_H
	6	#define UTIL_LINUX_PT_SUN_H
	7
	8	#include <stdint.h>
	9
9d3d9754 KZ	10	#define SUN_LABEL_MAGIC 0xDABE
9d3d9754 KZ	11
a08dc0ca KZ	12	/* Supported VTOC setting */
	13	#define SUN_VTOC_SANITY 0x600DDEEE /* magic number */
	14	#define SUN_VTOC_VERSION 1
a08dc0ca KZ	15	#define SUN_MAXPARTITIONS 8
a08dc0ca KZ	16
a08dc0ca	17	struct sun_disklabel {
9d3d9754	18	unsigned char label_id[128]; /* Informative text string */
a08dc0ca KZ	19
	20	struct sun_vtoc {
	21	uint32_t version; /* version */
9d3d9754	22	char volume_id[8];/* volume name */
a08dc0ca KZ	23	uint16_t nparts; /* num of partitions */
a08dc0ca KZ	24
ce337318 KZ	25	struct sun_info { /* partition information */
	26	uint16_t id; /* SUN_TAG_* */
	27	uint16_t flags; /* SUN_FLAG_* */
a08dc0ca KZ	28	} __attribute__ ((packed)) infos[8];
	29
	30	uint16_t padding; /* padding */
	31	uint32_t bootinfo[3]; /* info needed by mboot */
	32	uint32_t sanity; /* magic number */
	33	uint32_t reserved[10]; /* padding */
	34	uint32_t timestamp[8]; /* partition timestamp */
	35	} __attribute__ ((packed)) vtoc;
	36
	37	uint32_t write_reinstruct; /* sectors to skip, writes */
	38	uint32_t read_reinstruct; /* sectors to skip, reads */
	39	unsigned char spare[148]; /* padding */
9d3d9754 KZ	40	uint16_t rpm; /* disk rotational speed */
	41	uint16_t pcyl; /* physical cylinder count */
	42	uint16_t apc; /* extra sects per cylinder */
a08dc0ca KZ	43	uint16_t obs1;
a08dc0ca KZ	44	uint16_t obs2;
9d3d9754	45	uint16_t intrlv; /* interleave factor */
a08dc0ca	46	uint16_t ncyl; /* data cylinder count */
9d3d9754 KZ	47	uint16_t acyl; /* alt. cylinder count */
9d3d9754 KZ	48	uint16_t nhead; /* tracks per cylinder <---- */
a08dc0ca KZ	49	uint16_t nsect; /* sectors per track <---- */
	50	uint16_t obs3;
	51	uint16_t obs4;
	52
	53	struct sun_partition { /* partitions */
	54	uint32_t start_cylinder;
	55	uint32_t num_sectors;
	56	} __attribute__ ((packed)) partitions[8];
	57
	58	uint16_t magic; /* magic number */
	59	uint16_t csum; /* label xor'd checksum */
	60	} __attribute__ ((packed));
	61
	62
ce337318 KZ	63	#define SUN_TAG_UNASSIGNED 0x00 /* Unassigned partition */
	64	#define SUN_TAG_BOOT 0x01 /* Boot partition */
	65	#define SUN_TAG_ROOT 0x02 /* Root filesystem */
	66	#define SUN_TAG_SWAP 0x03 /* Swap partition */
	67	#define SUN_TAG_USR 0x04 /* /usr filesystem */
	68	#define SUN_TAG_WHOLEDISK 0x05 /* Full-disk slice */
	69	#define SUN_TAG_STAND 0x06 /* Stand partition */
	70	#define SUN_TAG_VAR 0x07 /* /var filesystem */
	71	#define SUN_TAG_HOME 0x08 /* /home filesystem */
	72	#define SUN_TAG_ALTSCTR 0x09 /* Alt sector partition */
	73	#define SUN_TAG_CACHE 0x0a /* Cachefs partition */
	74	#define SUN_TAG_RESERVED 0x0b /* SMI reserved data */
	75	#define SUN_TAG_LINUX_SWAP 0x82 /* Linux SWAP */
	76	#define SUN_TAG_LINUX_NATIVE 0x83 /* Linux filesystem */
	77	#define SUN_TAG_LINUX_LVM 0x8e /* Linux LVM */
	78	#define SUN_TAG_LINUX_RAID 0xfd /* LInux RAID */
	79
	80	#define SUN_FLAG_UNMNT 0x01 /* Unmountable partition*/
	81	#define SUN_FLAG_RONLY 0x10 /* Read only */
	82
7f387c5c	83	static inline uint16_t sun_pt_checksum(const struct sun_disklabel *label)
a08dc0ca	84	{
47afae0c	85	const uint16_t ptr = ((const uint16_t ) (label + 1)) - 1;
a08dc0ca KZ	86	uint16_t sum;
a08dc0ca KZ	87
47afae0c	88	for (sum = 0; ptr >= ((const uint16_t *) label);)
a08dc0ca KZ	89	sum ^= *ptr--;
	90
	91	return sum;
	92	}
	93
	94	#endif /* UTIL_LINUX_PT_SUN_H */