/*
* This function returns the support for target port groups by evaluating the
* data returned by the standard inquiry command.
*/
int
get_target_port_group_support(int fd)
{
struct inquiry_data inq;
int rc;
memset((unsigned char *)&inq, 0, sizeof(inq));
rc = do_inquiry(fd, 0, 0x00, &inq, sizeof(inq));
if (!rc) {
rc = inquiry_data_get_tpgs(&inq);
}
return rc;
}
static void scrub_disk(const char *path)
{
sg_t sg;
int dev_type;
scsi_vendor_t vendor;
scsi_model_t model;
scsi_fw_revision_t revision;
scsi_serial_t serial;
uint64_t num_blocks;
uint32_t block_size;
printf("Scrubbing disk %s\n", path);
if (!sg_open(&sg, path)) {
fprintf(stderr, "Error opening disk %s: %m\n", path);
return;
}
if (!do_inquiry(&sg, vendor, model, revision, serial, &dev_type)) {
fprintf(stderr, "Error while reading inquiry\n");
goto Exit;
}
if (dev_type != TYPE_DISK) {
fprintf(stderr, "Device is not a disk, scrubbing makes no sense\n");
goto Exit;
}
if (!do_read_capacity(&sg, &num_blocks, &block_size)) {
fprintf(stderr, "Error while reading capacity\n");
goto Exit;
}
printf("Device attributes:\n"
"\tVendor: %s\n"
"\tModel: %s\n"
"\tRevision: %s\n"
"\tSerial: %s\n"
"\tNum blocks: %llu\n"
"\tBlock size: %u\n"
"\tSize: %llu GB\n"
, vendor, model, revision, serial, (unsigned long long)num_blocks, block_size, (unsigned long long)num_blocks*block_size/1000/1000/1000);
do_scrub(&sg, num_blocks, block_size);
Exit:
sg_close(&sg);
}
int
get_target_port_group(int fd)
{
unsigned char buf[128];
struct vpd83_data * vpd83;
struct vpd83_dscr * dscr;
int rc;
memset(buf, 0, sizeof(buf));
rc = do_inquiry(fd, 1, 0x83, buf, sizeof(buf));
if (!rc) {
vpd83 = (struct vpd83_data *) buf;
rc = -RTPG_NO_TPG_IDENTIFIER;
FOR_EACH_VPD83_DSCR(vpd83, dscr) {
if ((((char *) dscr) - ((char *) vpd83)) > sizeof(buf))
break;
if (vpd83_dscr_istype(dscr, IDTYPE_TARGET_PORT_GROUP)) {
struct vpd83_tpg_dscr * p;
if (rc != -RTPG_NO_TPG_IDENTIFIER) {
PRINT_DEBUG("get_target_port_group: "
"more than one TPG identifier "
"found!\n");
continue;
}
p = (struct vpd83_tpg_dscr *) dscr->data;
rc = get_uint16(p->tpg);
}
}
if (rc == -RTPG_NO_TPG_IDENTIFIER) {
PRINT_DEBUG("get_target_port_group: "
"no TPG identifier found!\n");
}
}
int main(int argc, char *argv[])
{
struct iscsi_context *iscsi;
const char *url = NULL;
struct iscsi_url *iscsi_url = NULL;
int evpd = 0, pagecode = 0;
int show_help = 0, show_usage = 0, debug = 0;
int c;
static struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
{"usage", no_argument, NULL, 'u'},
{"debug", no_argument, NULL, 'd'},
{"initiator-name", required_argument, NULL, 'i'},
{"evpd", required_argument, NULL, 'e'},
{"pagecode", required_argument, NULL, 'c'},
{0, 0, 0, 0}
};
int option_index;
while ((c = getopt_long(argc, argv, "h?udi:e:c:", long_options,
&option_index)) != -1) {
switch (c) {
case 'h':
case '?':
show_help = 1;
break;
case 'u':
show_usage = 1;
break;
case 'd':
debug = 1;
break;
case 'i':
initiator = optarg;
break;
case 'e':
evpd = atoi(optarg);
break;
case 'c':
pagecode = atoi(optarg);
break;
default:
fprintf(stderr, "Unrecognized option '%c'\n\n", c);
print_help();
exit(0);
}
}
if (show_help != 0) {
print_help();
exit(0);
}
if (show_usage != 0) {
print_usage();
exit(0);
}
iscsi = iscsi_create_context(initiator);
if (iscsi == NULL) {
fprintf(stderr, "Failed to create context\n");
exit(10);
}
if (debug > 0) {
iscsi_set_log_level(iscsi, debug);
iscsi_set_log_fn(iscsi, iscsi_log_to_stderr);
}
if (argv[optind] != NULL) {
url = strdup(argv[optind]);
}
if (url == NULL) {
fprintf(stderr, "You must specify the URL\n");
print_usage();
exit(10);
}
iscsi_url = iscsi_parse_full_url(iscsi, url);
if (url) {
free(discard_const(url));
}
if (iscsi_url == NULL) {
fprintf(stderr, "Failed to parse URL: %s\n",
iscsi_get_error(iscsi));
exit(10);
}
iscsi_set_session_type(iscsi, ISCSI_SESSION_NORMAL);
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_NONE_CRC32C);
if (iscsi_full_connect_sync(iscsi, iscsi_url->portal, iscsi_url->lun) != 0) {
fprintf(stderr, "Login Failed. %s\n", iscsi_get_error(iscsi));
iscsi_destroy_url(iscsi_url);
iscsi_destroy_context(iscsi);
exit(10);
}
do_inquiry(iscsi, iscsi_url->lun, evpd, pagecode);
iscsi_destroy_url(iscsi_url);
iscsi_logout_sync(iscsi);
iscsi_destroy_context(iscsi);
return 0;
}
static void survey_disk(const char *path)
{
sg_t sg;
FILE *out = NULL;
printf("Scrubbing disk %s\n", path);
if (!sg_open(&sg, path)) {
fprintf(stderr, "Error opening disk %s: %m\n", path);
return;
}
int dev_type;
scsi_vendor_t vendor;
scsi_model_t model;
scsi_fw_revision_t revision;
scsi_serial_t serial;
if (!do_inquiry(&sg, vendor, model, revision, serial, &dev_type)) {
fprintf(stderr, "Error while reading inquiry\n");
goto Exit;
}
if (dev_type != TYPE_DISK) {
fprintf(stderr, "Device is not a disk (%d), bailing out.\n", dev_type);
goto Exit;
}
char filename[256];
snprintf(filename, sizeof(filename), "disk-survey-%s-%s-%s.xml", strtrim(vendor), strtrim(model), strtrim(serial));
out = fopen(filename, "w");
if (!out) {
fprintf(stderr, "Failed to open log file '%s' for output\n", filename);
goto Exit;
}
char largebuf[1024*1024];
setbuffer(out, largebuf, sizeof(largebuf));
fprintf(out, "<survey>\n"
"\t<inquiry>\n"
"\t\t<vendor>%s</vendor>\n"
"\t\t<model>%s</model>\n"
"\t\t<revision>%s</revision>\n"
"\t\t<serial>%s</serial>\n"
"\t\t<raw>%s</raw>\n"
"\t</inquiry>\n"
, vendor, model, revision, serial, hex_encode(inquiry_buf, sizeof(inquiry_buf), 1));
uint64_t num_blocks;
uint32_t block_size;
survey_disk_capacity(&sg, out, &num_blocks, &block_size);
survey_vpds(&sg, out);
survey_timestamp(&sg, out);
survey_mode_pages(&sg, out);
survey_read_diagnostics(&sg, out);
if (disk_is_ata(vendor)) {
survey_ata_identify(&sg, out);
}
// It woud be preferable to have no other IO during the read
// performance test, so flush the pending output buffer to keep all of
// the space for the next test
fflush(out);
survey_read_performance(&sg, out, num_blocks, block_size, path);
Exit:
if (out) {
fprintf(out, "</survey>\n");
fclose(out);
}
sg_close(&sg);
}
int
get_target_port_group(struct path * pp, unsigned int timeout)
{
unsigned char *buf;
struct vpd83_data * vpd83;
struct vpd83_dscr * dscr;
int rc;
int buflen, scsi_buflen;
buflen = 4096;
buf = (unsigned char *)malloc(buflen);
if (!buf) {
PRINT_DEBUG("malloc failed: could not allocate"
"%u bytes\n", buflen);
return -RTPG_RTPG_FAILED;
}
memset(buf, 0, buflen);
rc = get_sysfs_pg83(pp, buf, buflen);
if (rc < 0) {
rc = do_inquiry(pp->fd, 1, 0x83, buf, buflen, timeout);
if (rc < 0)
goto out;
scsi_buflen = (buf[2] << 8 | buf[3]) + 4;
/* Paranoia */
if (scsi_buflen >= USHRT_MAX)
scsi_buflen = USHRT_MAX;
if (buflen < scsi_buflen) {
free(buf);
buf = (unsigned char *)malloc(scsi_buflen);
if (!buf) {
PRINT_DEBUG("malloc failed: could not allocate"
"%u bytes\n", scsi_buflen);
return -RTPG_RTPG_FAILED;
}
buflen = scsi_buflen;
memset(buf, 0, buflen);
rc = do_inquiry(pp->fd, 1, 0x83, buf, buflen, timeout);
if (rc < 0)
goto out;
}
}
vpd83 = (struct vpd83_data *) buf;
rc = -RTPG_NO_TPG_IDENTIFIER;
FOR_EACH_VPD83_DSCR(vpd83, dscr) {
if (vpd83_dscr_istype(dscr, IDTYPE_TARGET_PORT_GROUP)) {
struct vpd83_tpg_dscr *p;
if (rc != -RTPG_NO_TPG_IDENTIFIER) {
PRINT_DEBUG("get_target_port_group: more "
"than one TPG identifier found!\n");
continue;
}
p = (struct vpd83_tpg_dscr *)dscr->data;
rc = get_uint16(p->tpg);
}
}
if (rc == -RTPG_NO_TPG_IDENTIFIER) {
PRINT_DEBUG("get_target_port_group: "
"no TPG identifier found!\n");
}
out:
free(buf);
return rc;
}