[thirdparty/systemd.git] / extras / volume_id / lib / adaptec_raid.c

/*
 * volume_id - reads filesystem label and uuid
 *
 * Copyright (C) 2006 Kay Sievers <kay.sievers@vrfy.org>
 *
 * 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
 * (at your option) 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef _GNU_SOURCE
#define _GNU_SOURCE 1
#endif

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>

#include "libvolume_id.h"
#include "libvolume_id-private.h"

struct adaptec_meta {
	uint32_t	b0idcode;
	uint8_t		lunsave[8];
	uint16_t	sdtype;
	uint16_t	ssavecyl;
	uint8_t		ssavehed;
	uint8_t		ssavesec;
	uint8_t		sb0flags;
	uint8_t		jbodEnable;
	uint8_t		lundsave;
	uint8_t		svpdirty;
	uint16_t	biosInfo;
	uint16_t	svwbskip;
	uint16_t	svwbcln;
	uint16_t	svwbmax;
	uint16_t	res3;
	uint16_t	svwbmin;
	uint16_t	res4;
	uint16_t	svrcacth;
	uint16_t	svwcacth;
	uint16_t	svwbdly;
	uint8_t		svsdtime;
	uint8_t		res5;
	uint16_t	firmval;
	uint16_t	firmbln;
	uint32_t	firmblk;
	uint32_t	fstrsvrb;
	uint16_t	svBlockStorageTid;
	uint16_t	svtid;
	uint8_t		svseccfl;
	uint8_t		res6;
	uint8_t		svhbanum;
	uint8_t		resver;
	uint32_t	drivemagic;
	uint8_t		reserved[20];
	uint8_t		testnum;
	uint8_t		testflags;
	uint16_t	maxErrorCount;
	uint32_t	count;
	uint32_t	startTime;
	uint32_t	interval;
	uint8_t		tstxt0;
	uint8_t		tstxt1;
	uint8_t		serNum[32];
	uint8_t		res8[102];
	uint32_t	fwTestMagic;
	uint32_t	fwTestSeqNum;
	uint8_t		fwTestRes[8];
	uint8_t		smagic[4];
	uint32_t	raidtbl;
	uint16_t	raidline;
	uint8_t		res9[0xF6];
} PACKED;

int volume_id_probe_adaptec_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
	const uint8_t *buf;
	uint64_t meta_off;
	struct adaptec_meta *ad;

	info("probing at offset 0x%llx, size 0x%llx\n",
	    (unsigned long long) off, (unsigned long long) size);

	if (size < 0x10000)
		return -1;

	meta_off = ((size / 0x200)-1) * 0x200;
	buf = volume_id_get_buffer(id, off + meta_off, 0x200);
	if (buf == NULL)
		return -1;

	ad = (struct adaptec_meta *) buf;
	if (memcmp(ad->smagic, "DPTM", 4) != 0)
		return -1;

	if (ad->b0idcode != be32_to_cpu(0x37FC4D1E))
		return -1;

	volume_id_set_usage(id, VOLUME_ID_RAID);
	snprintf(id->type_version, sizeof(id->type_version)-1, "%u", ad->resver);
	id->type = "adaptec_raid_member";

	return 0;
}
Commit	Line	Data
6deef787 KS	1	/*
	2	* volume_id - reads filesystem label and uuid
	3	*
	4	* Copyright (C) 2006 Kay Sievers <kay.sievers@vrfy.org>
	5	*
55e9959b KS	6	* This program is free software: you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation, either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program. If not, see <http://www.gnu.org/licenses/>.
6deef787 KS	18	*/
	19
	20	#ifndef _GNU_SOURCE
	21	#define _GNU_SOURCE 1
	22	#endif
	23
6deef787 KS	24	#include <stdio.h>
	25	#include <stdlib.h>
	26	#include <unistd.h>
	27	#include <string.h>
	28	#include <errno.h>
	29	#include <ctype.h>
	30
	31	#include "libvolume_id.h"
2603474f	32	#include "libvolume_id-private.h"
6deef787 KS	33
	34	struct adaptec_meta {
	35	uint32_t b0idcode;
	36	uint8_t lunsave[8];
	37	uint16_t sdtype;
	38	uint16_t ssavecyl;
	39	uint8_t ssavehed;
	40	uint8_t ssavesec;
	41	uint8_t sb0flags;
	42	uint8_t jbodEnable;
	43	uint8_t lundsave;
	44	uint8_t svpdirty;
	45	uint16_t biosInfo;
	46	uint16_t svwbskip;
	47	uint16_t svwbcln;
	48	uint16_t svwbmax;
	49	uint16_t res3;
	50	uint16_t svwbmin;
	51	uint16_t res4;
	52	uint16_t svrcacth;
	53	uint16_t svwcacth;
	54	uint16_t svwbdly;
	55	uint8_t svsdtime;
	56	uint8_t res5;
	57	uint16_t firmval;
	58	uint16_t firmbln;
	59	uint32_t firmblk;
	60	uint32_t fstrsvrb;
	61	uint16_t svBlockStorageTid;
	62	uint16_t svtid;
	63	uint8_t svseccfl;
	64	uint8_t res6;
	65	uint8_t svhbanum;
	66	uint8_t resver;
	67	uint32_t drivemagic;
	68	uint8_t reserved[20];
	69	uint8_t testnum;
	70	uint8_t testflags;
	71	uint16_t maxErrorCount;
	72	uint32_t count;
	73	uint32_t startTime;
	74	uint32_t interval;
	75	uint8_t tstxt0;
	76	uint8_t tstxt1;
	77	uint8_t serNum[32];
	78	uint8_t res8[102];
	79	uint32_t fwTestMagic;
	80	uint32_t fwTestSeqNum;
	81	uint8_t fwTestRes[8];
	82	uint8_t smagic[4];
	83	uint32_t raidtbl;
	84	uint16_t raidline;
	85	uint8_t res9[0xF6];
	86	} PACKED;
	87
	88	int volume_id_probe_adaptec_raid(struct volume_id *id, uint64_t off, uint64_t size)
	89	{
	90	const uint8_t *buf;
	91	uint64_t meta_off;
	92	struct adaptec_meta *ad;
	93
c70560fe	94	info("probing at offset 0x%llx, size 0x%llx\n",
6deef787 KS	95	(unsigned long long) off, (unsigned long long) size);
	96
	97	if (size < 0x10000)
	98	return -1;
	99
	100	meta_off = ((size / 0x200)-1) * 0x200;
	101	buf = volume_id_get_buffer(id, off + meta_off, 0x200);
	102	if (buf == NULL)
	103	return -1;
	104
	105	ad = (struct adaptec_meta *) buf;
	106	if (memcmp(ad->smagic, "DPTM", 4) != 0)
	107	return -1;
	108
	109	if (ad->b0idcode != be32_to_cpu(0x37FC4D1E))
	110	return -1;
	111
	112	volume_id_set_usage(id, VOLUME_ID_RAID);
	113	snprintf(id->type_version, sizeof(id->type_version)-1, "%u", ad->resver);
	114	id->type = "adaptec_raid_member";
	115
	116	return 0;
	117	}