sg_rtpg.c - platform/external/sg3_utils - Git at Google

 /*
  * Copyright (c) 2004-2005 Christophe Varoqui and Douglas Gilbert.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. The name of the author may not be used to endorse or promote products
  *    derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
  */

 #include <unistd.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
 #include <getopt.h>
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include "sg_include.h"
 #include "sg_lib.h"
 #include "sg_cmds.h"

 /* A utility program for the Linux OS SCSI subsystem.
  *
  *
  * This program issues the SCSI command REPORT TARGET PORT GROUPS
  * to the given SCSI device.
  */

 static char * version_str = "1.04 20050314";

 #define REPORT_TGT_GRP_BUFF_LEN 1024

 #define ME "sg_rtpg: "

 #define TPGS_STATE_OPTIMIZED 0x0
 #define TPGS_STATE_NONOPTIMIZED 0x1
 #define TPGS_STATE_STANDBY 0x2
 #define TPGS_STATE_UNAVAILABLE 0x3
 #define TPGS_STATE_TRANSITIONING 0xf

 #define STATUS_CODE_NOSTATUS 0x0
 #define STATUS_CODE_CHANGED_BY_SET 0x1
 #define STATUS_CODE_CHANGED_BY_IMPLICIT 0x2

 /* <<<<<<<<<<<<<<< start of test code */
 /* #define TEST_CODE */

 #ifdef TEST_CODE

 #warning "<<<< TEST_CODE response compiled in >>>>"

 unsigned char dummy_resp[32] = {
         0, 0, 0, 28,

         0x80, 0x3, 0, 1, 0, 2, 0, 2,
         0, 0, 0, 1,
         0, 0, 0, 2,

         0x1, 0x3, 0, 2, 0, 0, 0, 1,
         0, 0, 0, 3,
 };

 #endif
 /* <<<<<<<<<<<<<<< end of test code */

 static struct option long_options[] = {
         {"decode", 0, 0, 'd'},
         {"help", 0, 0, 'h'},
         {"hex", 0, 0, 'H'},
         {"verbose", 0, 0, 'v'},
         {"version", 0, 0, 'V'},
         {0, 0, 0, 0},
 };

 static void usage()
 {
     fprintf(stderr, "Usage: "
           "sg_rtpg   [--decode] [--help] [--hex] [--verbose] [--version]\n"
           "                   <scsi_device>\n"
           "  where: --decode|-d        decode status and asym. access state\n"
           "         --help|-h          print out usage message\n"
           "         --hex|-H           print out response in hex\n"
           "         --verbose|-v       increase verbosity\n"
           "         --version|-V       print version string and exit\n"
           );

 }

 static void decode_status(const int st)
 {
     switch (st) {
     case STATUS_CODE_NOSTATUS:
         printf(" (no status available)");
         break;
     case STATUS_CODE_CHANGED_BY_SET:
         printf(" (status changed by SET TARGET PORT GROUPS)");
         break;
     case STATUS_CODE_CHANGED_BY_IMPLICIT:
         printf(" (status changed by implicit TPGS behaviour)");
         break;
     default:
         printf(" (unknown status code)");
         break;
     }
 }

 static void decode_tpgs_state(const int st)
 {
     switch (st) {
     case TPGS_STATE_OPTIMIZED:
         printf(" (active/optimized)");
         break;
     case TPGS_STATE_NONOPTIMIZED:
         printf(" (active/non optimized)");
         break;
     case TPGS_STATE_STANDBY:
         printf(" (standby)");
         break;
     case TPGS_STATE_UNAVAILABLE:
         printf(" (unavailable)");
         break;
     case TPGS_STATE_TRANSITIONING:
         printf(" (transitioning between states)");
         break;
     default:
         printf(" (unknown)");
         break;
     }
 }

 int main(int argc, char * argv[])
 {
     int sg_fd, k, j, off, res, c, report_len, tgt_port_count, trunc;
     unsigned char reportTgtGrpBuff[REPORT_TGT_GRP_BUFF_LEN];
     unsigned char * ucp;
     int decode = 0;
     int hex = 0;
     int verbose = 0;
     char device_name[256];
     int ret = 1;

     memset(device_name, 0, sizeof device_name);
     while (1) {
         int option_index = 0;

         c = getopt_long(argc, argv, "dhHvV", long_options,
                         &option_index);
         if (c == -1)
             break;

         switch (c) {
         case 'd':
             decode = 1;
             break;
         case 'h':
         case '?':
             usage();
             return 0;
         case 'H':
             hex = 1;
             break;
         case 'v':
             ++verbose;
             break;
         case 'V':
             fprintf(stderr, ME "version: %s\n", version_str);
             return 0;
         default:
             fprintf(stderr, "unrecognised switch code 0x%x ??\n", c);
             usage();
             return 1;
         }
     }
     if (optind < argc) {
         if ('\0' == device_name[0]) {
             strncpy(device_name, argv[optind], sizeof(device_name) - 1);
             device_name[sizeof(device_name) - 1] = '\0';
             ++optind;
         }
         if (optind < argc) {
             for (; optind < argc; ++optind)
                 fprintf(stderr, "Unexpected extra argument: %s\n",
                         argv[optind]);
             usage();
             return 1;
         }
     }

     if (0 == device_name[0]) {
         fprintf(stderr, "missing device name!\n");
         usage();
         return 1;
     }
     sg_fd = open(device_name, O_RDWR | O_NONBLOCK);
     if (sg_fd < 0) {
         fprintf(stderr, ME "open error: %s: ", device_name);
         perror("");
         return 1;
     }

     memset(reportTgtGrpBuff, 0x0, sizeof(reportTgtGrpBuff));
     trunc = 0;

 #ifndef TEST_CODE
     res = sg_ll_report_tgt_prt_grp(sg_fd, reportTgtGrpBuff,
                             sizeof(reportTgtGrpBuff), 1, verbose);
 #else
     memcpy(reportTgtGrpBuff, dummy_resp, sizeof(dummy_resp));
     res = 0;
 #endif
     if (0 == res) {
         report_len = (reportTgtGrpBuff[0] << 24) +
                      (reportTgtGrpBuff[1] << 16) +
                      (reportTgtGrpBuff[2] << 8) +
                      reportTgtGrpBuff[3] + 4;
         printf("Report list length = %d\n", report_len);
         if (report_len > (int)sizeof(reportTgtGrpBuff)) {
             trunc = 1;
             printf("  <<report too long for internal buffer,"
                   " output truncated\n");
         }
         if (hex) {
             fprintf(stderr, "\nOutput response in hex\n");
             dStrHex((const char *)reportTgtGrpBuff,
                     (trunc ? (int)sizeof(reportTgtGrpBuff) : report_len), 1);
             ret = 0;
             goto err_out;
         }
         printf("Report target port groups:\n");
         for (k = 4, ucp = reportTgtGrpBuff + 4; k < report_len;
              k += off, ucp += off) {

             printf("  target port group id : 0x%x , Pref=%d\n",
                    (ucp[2] << 8) + ucp[3], !!(ucp[0] & 0x80));
             printf("    target port group assymetric access state : ");
             printf("0x%02x", ucp[0] & 0x0f);
             if (decode)
                 decode_tpgs_state(ucp[0] & 0x0f);
             printf("\n");

             printf("    T_SUP : %d, ", !!(ucp[1] & 0x80));
             printf("U_SUP : %d, ", !!(ucp[1] & 0x08));
             printf("S_SUP : %d, ", !!(ucp[1] & 0x04));
             printf("AN_SUP : %d, ", !!(ucp[1] & 0x02));
             printf("AO_SUP : %d\n", !!(ucp[1] & 0x01));

             printf("    status code : ");
             printf("0x%02x", ucp[5]);
             if (decode)
                 decode_status(ucp[5]);
             printf("\n");

             printf("    vendor unique status : ");
             printf("0x%02x\n", ucp[6]);

             printf("    target port count : ");
             tgt_port_count = ucp[7];
             printf("%02x\n", tgt_port_count);

             for (j = 0; j < tgt_port_count * 4; j += 4) {
                 if (0 == j)
                     printf("    Relative target port ids:\n");
                 printf("      0x%02x\n",
                        (ucp[8 + j + 2] << 8) + ucp[8 + j + 3]);
             }
             off = 8 + j;
         }
         ret = 0;
     } else if (SG_LIB_CAT_INVALID_OP == res)
         fprintf(stderr, "Report Target Port Groups command not supported\n");
     else if (SG_LIB_CAT_ILLEGAL_REQ == res)
         fprintf(stderr, "bad field in Report Target Port Groups cdb\n");

 err_out:
     res = close(sg_fd);
     if (res < 0) {
         perror(ME "close error");
         return 1;
     }
     return ret;
 }
	/*
	* Copyright (c) 2004-2005 Christophe Varoqui and Douglas Gilbert.
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	* 3. The name of the author may not be used to endorse or promote products
	* derived from this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	*
	*/

	#include <unistd.h>
	#include <fcntl.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <errno.h>
	#include <getopt.h>
	#include <sys/ioctl.h>
	#include <sys/types.h>
	#include <sys/stat.h>
	#include "sg_include.h"
	#include "sg_lib.h"
	#include "sg_cmds.h"

	/* A utility program for the Linux OS SCSI subsystem.
	*
	*
	* This program issues the SCSI command REPORT TARGET PORT GROUPS
	* to the given SCSI device.
	*/

	static char * version_str = "1.04 20050314";

	#define REPORT_TGT_GRP_BUFF_LEN 1024

	#define ME "sg_rtpg: "

	#define TPGS_STATE_OPTIMIZED 0x0
	#define TPGS_STATE_NONOPTIMIZED 0x1
	#define TPGS_STATE_STANDBY 0x2
	#define TPGS_STATE_UNAVAILABLE 0x3
	#define TPGS_STATE_TRANSITIONING 0xf

	#define STATUS_CODE_NOSTATUS 0x0
	#define STATUS_CODE_CHANGED_BY_SET 0x1
	#define STATUS_CODE_CHANGED_BY_IMPLICIT 0x2

	/* <<<<<<<<<<<<<<< start of test code */
	/* #define TEST_CODE */

	#ifdef TEST_CODE

	#warning "<<<< TEST_CODE response compiled in >>>>"

	unsigned char dummy_resp[32] = {
	0, 0, 0, 28,

	0x80, 0x3, 0, 1, 0, 2, 0, 2,
	0, 0, 0, 1,
	0, 0, 0, 2,

	0x1, 0x3, 0, 2, 0, 0, 0, 1,
	0, 0, 0, 3,
	};

	#endif
	/* <<<<<<<<<<<<<<< end of test code */

	static struct option long_options[] = {
	{"decode", 0, 0, 'd'},
	{"help", 0, 0, 'h'},
	{"hex", 0, 0, 'H'},
	{"verbose", 0, 0, 'v'},
	{"version", 0, 0, 'V'},
	{0, 0, 0, 0},
	};

	static void usage()
	{
	fprintf(stderr, "Usage: "
	"sg_rtpg [--decode] [--help] [--hex] [--verbose] [--version]\n"
	" <scsi_device>\n"
	" where: --decode\|-d decode status and asym. access state\n"
	" --help\|-h print out usage message\n"
	" --hex\|-H print out response in hex\n"
	" --verbose\|-v increase verbosity\n"
	" --version\|-V print version string and exit\n"
	);

	}

	static void decode_status(const int st)
	{
	switch (st) {
	case STATUS_CODE_NOSTATUS:
	printf(" (no status available)");
	break;
	case STATUS_CODE_CHANGED_BY_SET:
	printf(" (status changed by SET TARGET PORT GROUPS)");
	break;
	case STATUS_CODE_CHANGED_BY_IMPLICIT:
	printf(" (status changed by implicit TPGS behaviour)");
	break;
	default:
	printf(" (unknown status code)");
	break;
	}
	}

	static void decode_tpgs_state(const int st)
	{
	switch (st) {
	case TPGS_STATE_OPTIMIZED:
	printf(" (active/optimized)");
	break;
	case TPGS_STATE_NONOPTIMIZED:
	printf(" (active/non optimized)");
	break;
	case TPGS_STATE_STANDBY:
	printf(" (standby)");
	break;
	case TPGS_STATE_UNAVAILABLE:
	printf(" (unavailable)");
	break;
	case TPGS_STATE_TRANSITIONING:
	printf(" (transitioning between states)");
	break;
	default:
	printf(" (unknown)");
	break;
	}
	}

	int main(int argc, char * argv[])
	{
	int sg_fd, k, j, off, res, c, report_len, tgt_port_count, trunc;
	unsigned char reportTgtGrpBuff[REPORT_TGT_GRP_BUFF_LEN];
	unsigned char * ucp;
	int decode = 0;
	int hex = 0;
	int verbose = 0;
	char device_name[256];
	int ret = 1;

	memset(device_name, 0, sizeof device_name);
	while (1) {
	int option_index = 0;

	c = getopt_long(argc, argv, "dhHvV", long_options,
	&option_index);
	if (c == -1)
	break;

	switch (c) {
	case 'd':
	decode = 1;
	break;
	case 'h':
	case '?':
	usage();
	return 0;
	case 'H':
	hex = 1;
	break;
	case 'v':
	++verbose;
	break;
	case 'V':
	fprintf(stderr, ME "version: %s\n", version_str);
	return 0;
	default:
	fprintf(stderr, "unrecognised switch code 0x%x ??\n", c);
	usage();
	return 1;
	}
	}
	if (optind < argc) {
	if ('\0' == device_name[0]) {
	strncpy(device_name, argv[optind], sizeof(device_name) - 1);
	device_name[sizeof(device_name) - 1] = '\0';
	++optind;
	}
	if (optind < argc) {
	for (; optind < argc; ++optind)
	fprintf(stderr, "Unexpected extra argument: %s\n",
	argv[optind]);
	usage();
	return 1;
	}
	}

	if (0 == device_name[0]) {
	fprintf(stderr, "missing device name!\n");
	usage();
	return 1;
	}
	sg_fd = open(device_name, O_RDWR \| O_NONBLOCK);
	if (sg_fd < 0) {
	fprintf(stderr, ME "open error: %s: ", device_name);
	perror("");
	return 1;
	}

	memset(reportTgtGrpBuff, 0x0, sizeof(reportTgtGrpBuff));
	trunc = 0;

	#ifndef TEST_CODE
	res = sg_ll_report_tgt_prt_grp(sg_fd, reportTgtGrpBuff,
	sizeof(reportTgtGrpBuff), 1, verbose);
	#else
	memcpy(reportTgtGrpBuff, dummy_resp, sizeof(dummy_resp));
	res = 0;
	#endif
	if (0 == res) {
	report_len = (reportTgtGrpBuff[0] << 24) +
	(reportTgtGrpBuff[1] << 16) +
	(reportTgtGrpBuff[2] << 8) +
	reportTgtGrpBuff[3] + 4;
	printf("Report list length = %d\n", report_len);
	if (report_len > (int)sizeof(reportTgtGrpBuff)) {
	trunc = 1;
	printf(" <<report too long for internal buffer,"
	" output truncated\n");
	}
	if (hex) {
	fprintf(stderr, "\nOutput response in hex\n");
	dStrHex((const char *)reportTgtGrpBuff,
	(trunc ? (int)sizeof(reportTgtGrpBuff) : report_len), 1);
	ret = 0;
	goto err_out;
	}
	printf("Report target port groups:\n");
	for (k = 4, ucp = reportTgtGrpBuff + 4; k < report_len;
	k += off, ucp += off) {

	printf(" target port group id : 0x%x , Pref=%d\n",
	(ucp[2] << 8) + ucp[3], !!(ucp[0] & 0x80));
	printf(" target port group assymetric access state : ");
	printf("0x%02x", ucp[0] & 0x0f);
	if (decode)
	decode_tpgs_state(ucp[0] & 0x0f);
	printf("\n");

	printf(" T_SUP : %d, ", !!(ucp[1] & 0x80));
	printf("U_SUP : %d, ", !!(ucp[1] & 0x08));
	printf("S_SUP : %d, ", !!(ucp[1] & 0x04));
	printf("AN_SUP : %d, ", !!(ucp[1] & 0x02));
	printf("AO_SUP : %d\n", !!(ucp[1] & 0x01));

	printf(" status code : ");
	printf("0x%02x", ucp[5]);
	if (decode)
	decode_status(ucp[5]);
	printf("\n");

	printf(" vendor unique status : ");
	printf("0x%02x\n", ucp[6]);

	printf(" target port count : ");
	tgt_port_count = ucp[7];
	printf("%02x\n", tgt_port_count);

	for (j = 0; j < tgt_port_count * 4; j += 4) {
	if (0 == j)
	printf(" Relative target port ids:\n");
	printf(" 0x%02x\n",
	(ucp[8 + j + 2] << 8) + ucp[8 + j + 3]);
	}
	off = 8 + j;
	}
	ret = 0;
	} else if (SG_LIB_CAT_INVALID_OP == res)
	fprintf(stderr, "Report Target Port Groups command not supported\n");
	else if (SG_LIB_CAT_ILLEGAL_REQ == res)
	fprintf(stderr, "bad field in Report Target Port Groups cdb\n");

	err_out:
	res = close(sg_fd);
	if (res < 0) {
	perror(ME "close error");
	return 1;
	}
	return ret;
	}