/* Decodes given user data referral segment descriptor
* the number of blocks and returns the number of bytes processed,
* -1 for error.
*/
static int
decode_referral_desc(const uint8_t * bp, int bytes)
{
int j, n;
uint64_t first, last;
if (NULL == bp)
return -1;
if (bytes < 20)
return -1;
first = sg_get_unaligned_be64(bp + 4);
last = sg_get_unaligned_be64(bp + 12);
printf(" target port descriptors: %d\n", bp[3]);
printf(" user data segment: first lba %" PRIu64 ", last lba %"
PRIu64 "\n", first, last);
n = 20;
bytes -= n;
for (j = 0; j < bp[3]; j++) {
if (bytes < 4)
return -1;
printf(" target port descriptor %d:\n", j);
printf(" port group %x state (%s)\n",
sg_get_unaligned_be16(bp + n + 2),
decode_tpgs_state(bp[n] & 0xf));
n += 4;
bytes -= 4;
}
return n;
}
int main(int argc, char * argv[])
{
int sg_fd, k, j, off, res, c, report_len, tgt_port_count;
unsigned char reportTgtGrpBuff[REPORT_TGT_GRP_BUFF_LEN];
unsigned char * ucp;
int decode = 0;
int hex = 0;
int raw = 0;
int o_readonly = 0;
int verbose = 0;
int extended = 0;
const char * device_name = NULL;
int ret = 0;
while (1) {
int option_index = 0;
c = getopt_long(argc, argv, "dehHrRvV", long_options,
&option_index);
if (c == -1)
break;
switch (c) {
case 'd':
decode = 1;
break;
case 'e':
extended = 1;
break;
case 'h':
case '?':
usage();
return 0;
case 'H':
hex = 1;
break;
case 'r':
raw = 1;
break;
case 'R':
++o_readonly;
break;
case 'v':
++verbose;
break;
case 'V':
fprintf(stderr, "Version: %s\n", version_str);
return 0;
default:
fprintf(stderr, "unrecognised option code 0x%x ??\n", c);
usage();
return SG_LIB_SYNTAX_ERROR;
}
}
if (optind < argc) {
if (NULL == device_name) {
device_name = argv[optind];
++optind;
}
if (optind < argc) {
for (; optind < argc; ++optind)
fprintf(stderr, "Unexpected extra argument: %s\n",
argv[optind]);
usage();
return SG_LIB_SYNTAX_ERROR;
}
}
if (NULL == device_name) {
fprintf(stderr, "missing device name!\n");
usage();
return SG_LIB_SYNTAX_ERROR;
}
if (raw) {
if (sg_set_binary_mode(STDOUT_FILENO) < 0) {
perror("sg_set_binary_mode");
return SG_LIB_FILE_ERROR;
}
}
sg_fd = sg_cmds_open_device(device_name, o_readonly, verbose);
if (sg_fd < 0) {
fprintf(stderr, "open error: %s: %s\n", device_name,
safe_strerror(-sg_fd));
return SG_LIB_FILE_ERROR;
}
memset(reportTgtGrpBuff, 0x0, sizeof(reportTgtGrpBuff));
/* trunc = 0; */
res = sg_ll_report_tgt_prt_grp2(sg_fd, reportTgtGrpBuff,
sizeof(reportTgtGrpBuff),
extended, 1, verbose);
ret = res;
if (0 == res) {
report_len = (reportTgtGrpBuff[0] << 24) +
(reportTgtGrpBuff[1] << 16) +
(reportTgtGrpBuff[2] << 8) +
reportTgtGrpBuff[3] + 4;
if (report_len > (int)sizeof(reportTgtGrpBuff)) {
/* trunc = 1; */
fprintf(stderr, " <<report too long for internal buffer,"
" output truncated\n");
report_len = (int)sizeof(reportTgtGrpBuff);
}
if (raw) {
dStrRaw((const char *)reportTgtGrpBuff, report_len);
goto err_out;
}
if (verbose)
printf("Report list length = %d\n", report_len);
if (hex) {
if (verbose)
printf("\nOutput response in hex:\n");
dStrHex((const char *)reportTgtGrpBuff, report_len, 1);
goto err_out;
}
printf("Report target port groups:\n");
ucp = reportTgtGrpBuff + 4;
if (extended) {
if (0x10 != (ucp[0] & 0x70)) {
fprintf(stderr, " <<invalid extended header format\n");
goto err_out;
}
printf(" Implicit transition time: %d\n", ucp[1]);
ucp += 4;
}
for (k = ucp - reportTgtGrpBuff; k < report_len;
k += off, ucp += off) {
printf(" target port group id : 0x%x , Pref=%d, Rtpg_fmt=%d\n",
(ucp[2] << 8) + ucp[3], !!(ucp[0] & 0x80),
(ucp[0] >> 4) & 0x07);
printf(" target port group asymmetric 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("O_SUP : %d, ", !!(ucp[1] & 0x40));
printf("LBD_SUP : %d, ", !!(ucp[1] & 0x10));
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;
}
} else if (SG_LIB_CAT_INVALID_OP == res)
