[mirror_smartmontools-debian.git] / cciss.cpp

#include <stdio.h>
#include <string.h>
#include <sys/types.h>

#include "config.h"

#if defined(linux)
#  include <sys/ioctl.h>
#  ifdef HAVE_LINUX_COMPILER_H
#    include <linux/compiler.h>
#  endif
#  if defined(HAVE_LINUX_CCISS_IOCTL_H)
#    include <linux/cciss_ioctl.h>
#    define _HAVE_CCISS
#  endif
#  include <asm/byteorder.h>
#  define be32toh __be32_to_cpu
#elif defined(__FreeBSD__) && defined(HAVE_DEV_CISS_CISSIO_H)
#  include <sys/endian.h>
#  include <dev/ciss/cissio.h>
#  define _HAVE_CCISS
#elif defined(__FreeBSD_kernel__) && defined(HAVE_DEV_CISS_CISSIO_H)
#  include <endian.h>
#  include <dev/ciss/cissio.h>
#  define _HAVE_CCISS
#endif

#ifdef _HAVE_CCISS
#include "int64.h"
#include "scsicmds.h"
#include "utility.h"

const char *cciss_c_cvsid="$Id: cciss.cpp,v 1.9 2008/07/30 20:42:53 chrfranke Exp $"
CONFIG_H_CVSID INT64_H_CVSID SCSICMDS_H_CVSID UTILITY_H_CVSID;

typedef struct _ReportLUNdata_struct
{
  uint32_t LUNListLength;	/* always big-endian */
  uint32_t reserved;
  uint8_t LUN[CISS_MAX_LUN][8];
} ReportLunData_struct;

/* Structure/defines of Report Physical LUNS of drive */
#ifndef CISS_MAX_LUN
#define CISS_MAX_LUN        16
#endif
#define CISS_MAX_PHYS_LUN   1024
#define CISS_REPORT_PHYS    0xc3

#define LSCSI_DRIVER_SENSE  0x8		/* alternate CHECK CONDITION indication */
#define SEND_IOCTL_RESP_SENSE_LEN 16    /* ioctl limitation */

static int cciss_getlun(int device, int target, unsigned char *physlun, int report);
static int cciss_sendpassthru(unsigned int cmdtype, unsigned char *CDB,
    			unsigned int CDBlen, char *buff,
    			unsigned int size, unsigned int LunID,
    			unsigned char *scsi3addr, int fd);

/* 
   This is an interface that uses the cciss passthrough to talk to the SMART controller on
   the HP system. The cciss driver provides a way to send SCSI cmds through the CCISS passthrough.
*/
int cciss_io_interface(int device, int target, struct scsi_cmnd_io * iop, int report)
{
     unsigned char pBuf[512] = {0};
     unsigned char phylun[8] = {0};
     int iBufLen = 512;
     int status = -1;
     int len = 0; // used later in the code.
 
     status = cciss_getlun(device, target, phylun, report);
     if (report > 0)
         printf("  cciss_getlun(%d, %d) = 0x%x; scsi3addr: %02x %02x %02x %02x %02x %02x %02x %02x\n", 
	     device, target, status, 
	     phylun[0], phylun[1], phylun[2], phylun[3], phylun[4], phylun[5], phylun[6], phylun[7]);
     if (status) {
         return -ENXIO;      /* give up, assume no device there */
     }

     status = cciss_sendpassthru( 2, iop->cmnd, iop->cmnd_len, (char*) pBuf, iBufLen, 1, phylun, device);
 
     if (0 == status)
     {
         if (report > 0)
             printf("  status=0\n");
         if (DXFER_FROM_DEVICE == iop->dxfer_dir)
         {
             memcpy(iop->dxferp, pBuf, iop->dxfer_len);
             if (report > 1)
             {
                 int trunc = (iop->dxfer_len > 256) ? 1 : 0;
                 printf("  Incoming data, len=%d%s:\n", (int)iop->dxfer_len,
                      (trunc ? " [only first 256 bytes shown]" : ""));
                 dStrHex((const char*)iop->dxferp, (trunc ? 256 : iop->dxfer_len) , 1);
             }
         }
         return 0;
     }
     iop->scsi_status = status & 0x7e; /* bits 0 and 7 used to be for vendors */
     if (LSCSI_DRIVER_SENSE == ((status >> 24) & 0xf))
         iop->scsi_status = SCSI_STATUS_CHECK_CONDITION;
     len = (SEND_IOCTL_RESP_SENSE_LEN < iop->max_sense_len) ?
                SEND_IOCTL_RESP_SENSE_LEN : iop->max_sense_len;
     if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) &&
         iop->sensep && (len > 0))
     {
         memcpy(iop->sensep, pBuf, len);
         iop->resp_sense_len = iBufLen;
         if (report > 1)
         {
             printf("  >>> Sense buffer, len=%d:\n", (int)len);
             dStrHex((const char *)pBuf, len , 1);
         }
     }
     if (report)
     {
         if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) {
             printf("  status=%x: sense_key=%x asc=%x ascq=%x\n", status & 0xff,
                  pBuf[2] & 0xf, pBuf[12], pBuf[13]);
         }
         else
             printf("  status=0x%x\n", status);
     }
     if (iop->scsi_status > 0)
         return 0;
     else
     {
         if (report > 0)
             printf("  ioctl status=0x%x but scsi status=0, fail with ENXIO\n", status);
         return -ENXIO;      /* give up, assume no device there */
     }
} 

static int cciss_sendpassthru(unsigned int cmdtype, unsigned char *CDB,
    			unsigned int CDBlen, char *buff,
    			unsigned int size, unsigned int LunID,
    			unsigned char *scsi3addr, int fd)
{
    int err ;
    IOCTL_Command_struct iocommand;

    memset(&iocommand, 0, sizeof(iocommand));

    if (cmdtype == 0) 
    {
        // To controller; nothing to do
    }
    else if (cmdtype == 1) 
    {
        iocommand.LUN_info.LogDev.VolId = LunID;
        iocommand.LUN_info.LogDev.Mode = 1;
    }
    else if (cmdtype == 2) 
    {
        memcpy(&iocommand.LUN_info.LunAddrBytes,scsi3addr,8);
        iocommand.LUN_info.LogDev.Mode = 0;
    }
    else 
    {
        fprintf(stderr, "cciss_sendpassthru: bad cmdtype\n");
        return 1;
    }

    memcpy(&iocommand.Request.CDB[0], CDB, CDBlen);
    iocommand.Request.CDBLen = CDBlen;
    iocommand.Request.Type.Type = TYPE_CMD;
    iocommand.Request.Type.Attribute = ATTR_SIMPLE;
    iocommand.Request.Type.Direction = XFER_READ;
    iocommand.Request.Timeout = 0;

    iocommand.buf_size = size;
    iocommand.buf = (unsigned char *)buff;

    if ((err = ioctl(fd, CCISS_PASSTHRU, &iocommand))) 
    {
        fprintf(stderr, "CCISS ioctl error %d (fd %d CDBLen %d buf_size %d)\n",
	    fd, err, CDBlen, size);
    }
    return err;
}

static int cciss_getlun(int device, int target, unsigned char *physlun, int report)
{
    unsigned char CDB[16]= {0};
    ReportLunData_struct *luns;
    int reportlunsize = sizeof(*luns) + CISS_MAX_PHYS_LUN * 8;
    int ret;

    luns = (ReportLunData_struct *)malloc(reportlunsize);

    memset(luns, 0, reportlunsize);

    /* Get Physical LUN Info (for physical device) */
    CDB[0] = CISS_REPORT_PHYS;
    CDB[6] = (reportlunsize >> 24) & 0xFF;  /* MSB */
    CDB[7] = (reportlunsize >> 16) & 0xFF;
    CDB[8] = (reportlunsize >> 8) & 0xFF;
    CDB[9] = reportlunsize & 0xFF;

    if ((ret = cciss_sendpassthru(0, CDB, 12, (char *)luns, reportlunsize, 0, NULL, device)))
    {
        free(luns);
        return ret;
    }

    if (report > 1)
    {
      unsigned int i,j;
      unsigned char *stuff = (unsigned char *)luns;

      pout("\n===== [%s] DATA START (BASE-16) =====\n", "LUN DATA");
      for (i=0; i<(sizeof(_ReportLUNdata_struct)+15)/16; i++){
	pout("%03d-%03d: ", 16*i, 16*(i+1)-1);
	for (j=0; j<15; j++)
	  pout("%02x ",*stuff++);
	pout("%02x\n",*stuff++);
      }
      pout("===== [%s] DATA END (%u Bytes) =====\n\n", "LUN DATA", (unsigned)sizeof(_ReportLUNdata_struct));
    }

    if (target >= 0 && target < (int) be32toh(luns->LUNListLength) / 8)
    {
	memcpy(physlun, luns->LUN[target], 8);
	free(luns);
	return 0;
    }

    free(luns);
    return 1;
}
#endif
Commit	Line	Data
a37e7145 GG	1	#include <stdio.h>
	2	#include <string.h>
	3	#include <sys/types.h>
	4
	5	#include "config.h"
	6
	7	#if defined(linux)
	8	# include <sys/ioctl.h>
	9	# ifdef HAVE_LINUX_COMPILER_H
	10	# include <linux/compiler.h>
	11	# endif
	12	# if defined(HAVE_LINUX_CCISS_IOCTL_H)
	13	# include <linux/cciss_ioctl.h>
	14	# define _HAVE_CCISS
	15	# endif
	16	# include <asm/byteorder.h>
	17	# define be32toh __be32_to_cpu
	18	#elif defined(__FreeBSD__) && defined(HAVE_DEV_CISS_CISSIO_H)
	19	# include <sys/endian.h>
	20	# include <dev/ciss/cissio.h>
	21	# define _HAVE_CCISS
54965743 GI	22	#elif defined(__FreeBSD_kernel__) && defined(HAVE_DEV_CISS_CISSIO_H)
	23	# include <endian.h>
	24	# include <dev/ciss/cissio.h>
	25	# define _HAVE_CCISS
a37e7145 GG	26	#endif
	27
	28	#ifdef _HAVE_CCISS
	29	#include "int64.h"
	30	#include "scsicmds.h"
	31	#include "utility.h"
	32
2127e193 GI	33	const char *cciss_c_cvsid="$Id: cciss.cpp,v 1.9 2008/07/30 20:42:53 chrfranke Exp $"
	34	CONFIG_H_CVSID INT64_H_CVSID SCSICMDS_H_CVSID UTILITY_H_CVSID;
	35
a37e7145 GG	36	typedef struct _ReportLUNdata_struct
	37	{
	38	uint32_t LUNListLength; /* always big-endian */
	39	uint32_t reserved;
	40	uint8_t LUN[CISS_MAX_LUN][8];
	41	} ReportLunData_struct;
	42
	43	/* Structure/defines of Report Physical LUNS of drive */
	44	#ifndef CISS_MAX_LUN
	45	#define CISS_MAX_LUN 16
	46	#endif
	47	#define CISS_MAX_PHYS_LUN 1024
	48	#define CISS_REPORT_PHYS 0xc3
	49
	50	#define LSCSI_DRIVER_SENSE 0x8 /* alternate CHECK CONDITION indication */
	51	#define SEND_IOCTL_RESP_SENSE_LEN 16 /* ioctl limitation */
	52
	53	static int cciss_getlun(int device, int target, unsigned char *physlun, int report);
	54	static int cciss_sendpassthru(unsigned int cmdtype, unsigned char *CDB,
	55	unsigned int CDBlen, char *buff,
	56	unsigned int size, unsigned int LunID,
	57	unsigned char *scsi3addr, int fd);
	58
	59	/*
	60	This is an interface that uses the cciss passthrough to talk to the SMART controller on
	61	the HP system. The cciss driver provides a way to send SCSI cmds through the CCISS passthrough.
	62	*/
	63	int cciss_io_interface(int device, int target, struct scsi_cmnd_io * iop, int report)
	64	{
	65	unsigned char pBuf[512] = {0};
	66	unsigned char phylun[8] = {0};
	67	int iBufLen = 512;
	68	int status = -1;
	69	int len = 0; // used later in the code.
	70
	71	status = cciss_getlun(device, target, phylun, report);
	72	if (report > 0)
	73	printf(" cciss_getlun(%d, %d) = 0x%x; scsi3addr: %02x %02x %02x %02x %02x %02x %02x %02x\n",
	74	device, target, status,
	75	phylun[0], phylun[1], phylun[2], phylun[3], phylun[4], phylun[5], phylun[6], phylun[7]);
	76	if (status) {
	77	return -ENXIO; /* give up, assume no device there */
	78	}
	79
	80	status = cciss_sendpassthru( 2, iop->cmnd, iop->cmnd_len, (char*) pBuf, iBufLen, 1, phylun, device);
	81
	82	if (0 == status)
	83	{
	84	if (report > 0)
	85	printf(" status=0\n");
	86	if (DXFER_FROM_DEVICE == iop->dxfer_dir)
	87	{
	88	memcpy(iop->dxferp, pBuf, iop->dxfer_len);
	89	if (report > 1)
	90	{
	91	int trunc = (iop->dxfer_len > 256) ? 1 : 0;
	92	printf(" Incoming data, len=%d%s:\n", (int)iop->dxfer_len,
	93	(trunc ? " [only first 256 bytes shown]" : ""));
	94	dStrHex((const char*)iop->dxferp, (trunc ? 256 : iop->dxfer_len) , 1);
	95	}
	96	}
	97	return 0;
	98	}
	99	iop->scsi_status = status & 0x7e; /* bits 0 and 7 used to be for vendors */
100	if (LSCSI_DRIVER_SENSE == ((status >> 24) & 0xf))
101	iop->scsi_status = SCSI_STATUS_CHECK_CONDITION;
102	len = (SEND_IOCTL_RESP_SENSE_LEN < iop->max_sense_len) ?
103	SEND_IOCTL_RESP_SENSE_LEN : iop->max_sense_len;
104	if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) &&
105	iop->sensep && (len > 0))
106	{
107	memcpy(iop->sensep, pBuf, len);
108	iop->resp_sense_len = iBufLen;
109	if (report > 1)
110	{
111	printf(" >>> Sense buffer, len=%d:\n", (int)len);
112	dStrHex((const char *)pBuf, len , 1);
113	}
114	}
115	if (report)
116	{
117	if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) {
118	printf(" status=%x: sense_key=%x asc=%x ascq=%x\n", status & 0xff,
119	pBuf[2] & 0xf, pBuf[12], pBuf[13]);
120	}
121	else
122	printf(" status=0x%x\n", status);
123	}
124	if (iop->scsi_status > 0)
125	return 0;
126	else
127	{
128	if (report > 0)
129	printf(" ioctl status=0x%x but scsi status=0, fail with ENXIO\n", status);
130	return -ENXIO; /* give up, assume no device there */
131	}
132	}
133
134	static int cciss_sendpassthru(unsigned int cmdtype, unsigned char *CDB,
135	unsigned int CDBlen, char *buff,
136	unsigned int size, unsigned int LunID,
137	unsigned char *scsi3addr, int fd)
138	{
139	int err ;
140	IOCTL_Command_struct iocommand;
141
142	memset(&iocommand, 0, sizeof(iocommand));
143
144	if (cmdtype == 0)
145	{
146	// To controller; nothing to do
147	}
148	else if (cmdtype == 1)
149	{
150	iocommand.LUN_info.LogDev.VolId = LunID;
151	iocommand.LUN_info.LogDev.Mode = 1;
152	}
153	else if (cmdtype == 2)
154	{
155	memcpy(&iocommand.LUN_info.LunAddrBytes,scsi3addr,8);
156	iocommand.LUN_info.LogDev.Mode = 0;
157	}
158	else
159	{
160	fprintf(stderr, "cciss_sendpassthru: bad cmdtype\n");
161	return 1;
162	}
163
164	memcpy(&iocommand.Request.CDB[0], CDB, CDBlen);
165	iocommand.Request.CDBLen = CDBlen;
166	iocommand.Request.Type.Type = TYPE_CMD;
167	iocommand.Request.Type.Attribute = ATTR_SIMPLE;
168	iocommand.Request.Type.Direction = XFER_READ;
169	iocommand.Request.Timeout = 0;
170
171	iocommand.buf_size = size;
172	iocommand.buf = (unsigned char *)buff;
173
174	if ((err = ioctl(fd, CCISS_PASSTHRU, &iocommand)))
175	{
176	fprintf(stderr, "CCISS ioctl error %d (fd %d CDBLen %d buf_size %d)\n",
177	fd, err, CDBlen, size);
178	}
179	return err;
180	}
181
182	static int cciss_getlun(int device, int target, unsigned char *physlun, int report)
183	{
184	unsigned char CDB[16]= {0};
185	ReportLunData_struct *luns;
186	int reportlunsize = sizeof(luns) + CISS_MAX_PHYS_LUN 8;
a37e7145 GG	187	int ret;
	188
	189	luns = (ReportLunData_struct *)malloc(reportlunsize);
	190
	191	memset(luns, 0, reportlunsize);
	192
	193	/* Get Physical LUN Info (for physical device) */
	194	CDB[0] = CISS_REPORT_PHYS;
	195	CDB[6] = (reportlunsize >> 24) & 0xFF; /* MSB */
	196	CDB[7] = (reportlunsize >> 16) & 0xFF;
	197	CDB[8] = (reportlunsize >> 8) & 0xFF;
	198	CDB[9] = reportlunsize & 0xFF;
	199
	200	if ((ret = cciss_sendpassthru(0, CDB, 12, (char *)luns, reportlunsize, 0, NULL, device)))
	201	{
	202	free(luns);
	203	return ret;
	204	}
	205
	206	if (report > 1)
	207	{
	208	unsigned int i,j;
	209	unsigned char stuff = (unsigned char )luns;
	210
	211	pout("\n===== [%s] DATA START (BASE-16) =====\n", "LUN DATA");
	212	for (i=0; i<(sizeof(_ReportLUNdata_struct)+15)/16; i++){
	213	pout("%03d-%03d: ", 16i, 16(i+1)-1);
	214	for (j=0; j<15; j++)
	215	pout("%02x ",*stuff++);
	216	pout("%02x\n",*stuff++);
	217	}
2127e193	218	pout("===== [%s] DATA END (%u Bytes) =====\n\n", "LUN DATA", (unsigned)sizeof(_ReportLUNdata_struct));
a37e7145 GG	219	}
a37e7145 GG	220
a37e7145 GG	221	if (target >= 0 && target < (int) be32toh(luns->LUNListLength) / 8)
	222	{
	223	memcpy(physlun, luns->LUN[target], 8);
	224	free(luns);
	225	return 0;
	226	}
a37e7145 GG	227
	228	free(luns);
	229	return 1;
	230	}
	231	#endif