* is normally one or some small number of descriptors.
*/
static const struct scsi_id_search_values id_search_list[] = {
- { SCSI_ID_TGTGROUP, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
- { SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG_EXTENDED, SCSI_ID_BINARY },
- { SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG_EXTENDED, SCSI_ID_ASCII },
- { SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG, SCSI_ID_BINARY },
- { SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG, SCSI_ID_ASCII },
- /*
- * Devices already exist using NAA values that are now marked
- * reserved. These should not conflict with other values, or it is
- * a bug in the device. As long as we find the IEEE extended one
- * first, we really don't care what other ones are used. Using
- * don't care here means that a device that returns multiple
- * non-IEEE descriptors in a random order will get different
- * names.
- */
- { SCSI_ID_NAA, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
- { SCSI_ID_NAA, SCSI_ID_NAA_DONT_CARE, SCSI_ID_ASCII },
- { SCSI_ID_EUI_64, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
- { SCSI_ID_EUI_64, SCSI_ID_NAA_DONT_CARE, SCSI_ID_ASCII },
- { SCSI_ID_T10_VENDOR, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
- { SCSI_ID_T10_VENDOR, SCSI_ID_NAA_DONT_CARE, SCSI_ID_ASCII },
- { SCSI_ID_VENDOR_SPECIFIC, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
- { SCSI_ID_VENDOR_SPECIFIC, SCSI_ID_NAA_DONT_CARE, SCSI_ID_ASCII },
+ { SCSI_ID_TGTGROUP, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
+ { SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG_EXTENDED, SCSI_ID_BINARY },
+ { SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG_EXTENDED, SCSI_ID_ASCII },
+ { SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG, SCSI_ID_BINARY },
+ { SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG, SCSI_ID_ASCII },
+ /*
+ * Devices already exist using NAA values that are now marked
+ * reserved. These should not conflict with other values, or it is
+ * a bug in the device. As long as we find the IEEE extended one
+ * first, we really don't care what other ones are used. Using
+ * don't care here means that a device that returns multiple
+ * non-IEEE descriptors in a random order will get different
+ * names.
+ */
+ { SCSI_ID_NAA, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
+ { SCSI_ID_NAA, SCSI_ID_NAA_DONT_CARE, SCSI_ID_ASCII },
+ { SCSI_ID_EUI_64, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
+ { SCSI_ID_EUI_64, SCSI_ID_NAA_DONT_CARE, SCSI_ID_ASCII },
+ { SCSI_ID_T10_VENDOR, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
+ { SCSI_ID_T10_VENDOR, SCSI_ID_NAA_DONT_CARE, SCSI_ID_ASCII },
+ { SCSI_ID_VENDOR_SPECIFIC, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
+ { SCSI_ID_VENDOR_SPECIFIC, SCSI_ID_NAA_DONT_CARE, SCSI_ID_ASCII },
};
static const char hex_str[]="0123456789abcdef";
* are used here.
*/
-#define DID_NO_CONNECT 0x01 /* Unable to connect before timeout */
-#define DID_BUS_BUSY 0x02 /* Bus remain busy until timeout */
-#define DID_TIME_OUT 0x03 /* Timed out for some other reason */
-#define DRIVER_TIMEOUT 0x06
-#define DRIVER_SENSE 0x08 /* Sense_buffer has been set */
+#define DID_NO_CONNECT 0x01 /* Unable to connect before timeout */
+#define DID_BUS_BUSY 0x02 /* Bus remain busy until timeout */
+#define DID_TIME_OUT 0x03 /* Timed out for some other reason */
+#define DRIVER_TIMEOUT 0x06
+#define DRIVER_SENSE 0x08 /* Sense_buffer has been set */
/* The following "category" function returns one of the following */
-#define SG_ERR_CAT_CLEAN 0 /* No errors or other information */
-#define SG_ERR_CAT_MEDIA_CHANGED 1 /* interpreted from sense buffer */
-#define SG_ERR_CAT_RESET 2 /* interpreted from sense buffer */
-#define SG_ERR_CAT_TIMEOUT 3
-#define SG_ERR_CAT_RECOVERED 4 /* Successful command after recovered err */
-#define SG_ERR_CAT_NOTSUPPORTED 5 /* Illegal / unsupported command */
-#define SG_ERR_CAT_SENSE 98 /* Something else in the sense buffer */
-#define SG_ERR_CAT_OTHER 99 /* Some other error/warning */
+#define SG_ERR_CAT_CLEAN 0 /* No errors or other information */
+#define SG_ERR_CAT_MEDIA_CHANGED 1 /* interpreted from sense buffer */
+#define SG_ERR_CAT_RESET 2 /* interpreted from sense buffer */
+#define SG_ERR_CAT_TIMEOUT 3
+#define SG_ERR_CAT_RECOVERED 4 /* Successful command after recovered err */
+#define SG_ERR_CAT_NOTSUPPORTED 5 /* Illegal / unsupported command */
+#define SG_ERR_CAT_SENSE 98 /* Something else in the sense buffer */
+#define SG_ERR_CAT_OTHER 99 /* Some other error/warning */
static int do_scsi_page80_inquiry(struct udev *udev,
- struct scsi_id_device *dev_scsi, int fd,
- char *serial, char *serial_short, int max_len);
+ struct scsi_id_device *dev_scsi, int fd,
+ char *serial, char *serial_short, int max_len);
static int sg_err_category_new(struct udev *udev,
- int scsi_status, int msg_status, int
- host_status, int driver_status, const
- unsigned char *sense_buffer, int sb_len)
+ int scsi_status, int msg_status, int
+ host_status, int driver_status, const
+ unsigned char *sense_buffer, int sb_len)
{
- scsi_status &= 0x7e;
-
- /*
- * XXX change to return only two values - failed or OK.
- */
-
- if (!scsi_status && !host_status && !driver_status)
- return SG_ERR_CAT_CLEAN;
-
- if ((scsi_status == SCSI_CHECK_CONDITION) ||
- (scsi_status == SCSI_COMMAND_TERMINATED) ||
- ((driver_status & 0xf) == DRIVER_SENSE)) {
- if (sense_buffer && (sb_len > 2)) {
- int sense_key;
- unsigned char asc;
-
- if (sense_buffer[0] & 0x2) {
- sense_key = sense_buffer[1] & 0xf;
- asc = sense_buffer[2];
- } else {
- sense_key = sense_buffer[2] & 0xf;
- asc = (sb_len > 12) ? sense_buffer[12] : 0;
- }
-
- if (sense_key == RECOVERED_ERROR)
- return SG_ERR_CAT_RECOVERED;
- else if (sense_key == UNIT_ATTENTION) {
- if (0x28 == asc)
- return SG_ERR_CAT_MEDIA_CHANGED;
- if (0x29 == asc)
- return SG_ERR_CAT_RESET;
- } else if (sense_key == ILLEGAL_REQUEST) {
- return SG_ERR_CAT_NOTSUPPORTED;
- }
- }
- return SG_ERR_CAT_SENSE;
- }
- if (host_status) {
- if ((host_status == DID_NO_CONNECT) ||
- (host_status == DID_BUS_BUSY) ||
- (host_status == DID_TIME_OUT))
- return SG_ERR_CAT_TIMEOUT;
- }
- if (driver_status) {
- if (driver_status == DRIVER_TIMEOUT)
- return SG_ERR_CAT_TIMEOUT;
- }
- return SG_ERR_CAT_OTHER;
+ scsi_status &= 0x7e;
+
+ /*
+ * XXX change to return only two values - failed or OK.
+ */
+
+ if (!scsi_status && !host_status && !driver_status)
+ return SG_ERR_CAT_CLEAN;
+
+ if ((scsi_status == SCSI_CHECK_CONDITION) ||
+ (scsi_status == SCSI_COMMAND_TERMINATED) ||
+ ((driver_status & 0xf) == DRIVER_SENSE)) {
+ if (sense_buffer && (sb_len > 2)) {
+ int sense_key;
+ unsigned char asc;
+
+ if (sense_buffer[0] & 0x2) {
+ sense_key = sense_buffer[1] & 0xf;
+ asc = sense_buffer[2];
+ } else {
+ sense_key = sense_buffer[2] & 0xf;
+ asc = (sb_len > 12) ? sense_buffer[12] : 0;
+ }
+
+ if (sense_key == RECOVERED_ERROR)
+ return SG_ERR_CAT_RECOVERED;
+ else if (sense_key == UNIT_ATTENTION) {
+ if (0x28 == asc)
+ return SG_ERR_CAT_MEDIA_CHANGED;
+ if (0x29 == asc)
+ return SG_ERR_CAT_RESET;
+ } else if (sense_key == ILLEGAL_REQUEST) {
+ return SG_ERR_CAT_NOTSUPPORTED;
+ }
+ }
+ return SG_ERR_CAT_SENSE;
+ }
+ if (host_status) {
+ if ((host_status == DID_NO_CONNECT) ||
+ (host_status == DID_BUS_BUSY) ||
+ (host_status == DID_TIME_OUT))
+ return SG_ERR_CAT_TIMEOUT;
+ }
+ if (driver_status) {
+ if (driver_status == DRIVER_TIMEOUT)
+ return SG_ERR_CAT_TIMEOUT;
+ }
+ return SG_ERR_CAT_OTHER;
}
static int sg_err_category3(struct udev *udev, struct sg_io_hdr *hp)
{
- return sg_err_category_new(udev,
- hp->status, hp->msg_status,
- hp->host_status, hp->driver_status,
- hp->sbp, hp->sb_len_wr);
+ return sg_err_category_new(udev,
+ hp->status, hp->msg_status,
+ hp->host_status, hp->driver_status,
+ hp->sbp, hp->sb_len_wr);
}
static int sg_err_category4(struct udev *udev, struct sg_io_v4 *hp)
{
- return sg_err_category_new(udev, hp->device_status, 0,
- hp->transport_status, hp->driver_status,
- (unsigned char *)(uintptr_t)hp->response,
- hp->response_len);
+ return sg_err_category_new(udev, hp->device_status, 0,
+ hp->transport_status, hp->driver_status,
+ (unsigned char *)(uintptr_t)hp->response,
+ hp->response_len);
}
static int scsi_dump_sense(struct udev *udev,
- struct scsi_id_device *dev_scsi,
- unsigned char *sense_buffer, int sb_len)
+ struct scsi_id_device *dev_scsi,
+ unsigned char *sense_buffer, int sb_len)
{
- int s;
- int code;
- int sense_class;
- int sense_key;
- int asc, ascq;
+ int s;
+ int code;
+ int sense_class;
+ int sense_key;
+ int asc, ascq;
#ifdef DUMP_SENSE
- char out_buffer[256];
- int i, j;
+ char out_buffer[256];
+ int i, j;
#endif
- /*
- * Figure out and print the sense key, asc and ascq.
- *
- * If you want to suppress these for a particular drive model, add
- * a black list entry in the scsi_id config file.
- *
- * XXX We probably need to: lookup the sense/asc/ascq in a retry
- * table, and if found return 1 (after dumping the sense, asc, and
- * ascq). So, if/when we get something like a power on/reset,
- * we'll retry the command.
- */
-
- dbg(udev, "got check condition\n");
-
- if (sb_len < 1) {
- info(udev, "%s: sense buffer empty\n", dev_scsi->kernel);
- return -1;
- }
-
- sense_class = (sense_buffer[0] >> 4) & 0x07;
- code = sense_buffer[0] & 0xf;
-
- if (sense_class == 7) {
- /*
- * extended sense data.
- */
- s = sense_buffer[7] + 8;
- if (sb_len < s) {
- info(udev, "%s: sense buffer too small %d bytes, %d bytes too short\n",
- dev_scsi->kernel, sb_len, s - sb_len);
- return -1;
- }
- if ((code == 0x0) || (code == 0x1)) {
- sense_key = sense_buffer[2] & 0xf;
- if (s < 14) {
- /*
- * Possible?
- */
- info(udev, "%s: sense result too" " small %d bytes\n",
- dev_scsi->kernel, s);
- return -1;
- }
- asc = sense_buffer[12];
- ascq = sense_buffer[13];
- } else if ((code == 0x2) || (code == 0x3)) {
- sense_key = sense_buffer[1] & 0xf;
- asc = sense_buffer[2];
- ascq = sense_buffer[3];
- } else {
- info(udev, "%s: invalid sense code 0x%x\n",
- dev_scsi->kernel, code);
- return -1;
- }
- info(udev, "%s: sense key 0x%x ASC 0x%x ASCQ 0x%x\n",
- dev_scsi->kernel, sense_key, asc, ascq);
- } else {
- if (sb_len < 4) {
- info(udev, "%s: sense buffer too small %d bytes, %d bytes too short\n",
- dev_scsi->kernel, sb_len, 4 - sb_len);
- return -1;
- }
-
- if (sense_buffer[0] < 15)
- info(udev, "%s: old sense key: 0x%x\n", dev_scsi->kernel, sense_buffer[0] & 0x0f);
- else
- info(udev, "%s: sense = %2x %2x\n",
- dev_scsi->kernel, sense_buffer[0], sense_buffer[2]);
- info(udev, "%s: non-extended sense class %d code 0x%0x\n",
- dev_scsi->kernel, sense_class, code);
-
- }
+ /*
+ * Figure out and print the sense key, asc and ascq.
+ *
+ * If you want to suppress these for a particular drive model, add
+ * a black list entry in the scsi_id config file.
+ *
+ * XXX We probably need to: lookup the sense/asc/ascq in a retry
+ * table, and if found return 1 (after dumping the sense, asc, and
+ * ascq). So, if/when we get something like a power on/reset,
+ * we'll retry the command.
+ */
+
+ dbg(udev, "got check condition\n");
+
+ if (sb_len < 1) {
+ info(udev, "%s: sense buffer empty\n", dev_scsi->kernel);
+ return -1;
+ }
+
+ sense_class = (sense_buffer[0] >> 4) & 0x07;
+ code = sense_buffer[0] & 0xf;
+
+ if (sense_class == 7) {
+ /*
+ * extended sense data.
+ */
+ s = sense_buffer[7] + 8;
+ if (sb_len < s) {
+ info(udev, "%s: sense buffer too small %d bytes, %d bytes too short\n",
+ dev_scsi->kernel, sb_len, s - sb_len);
+ return -1;
+ }
+ if ((code == 0x0) || (code == 0x1)) {
+ sense_key = sense_buffer[2] & 0xf;
+ if (s < 14) {
+ /*
+ * Possible?
+ */
+ info(udev, "%s: sense result too" " small %d bytes\n",
+ dev_scsi->kernel, s);
+ return -1;
+ }
+ asc = sense_buffer[12];
+ ascq = sense_buffer[13];
+ } else if ((code == 0x2) || (code == 0x3)) {
+ sense_key = sense_buffer[1] & 0xf;
+ asc = sense_buffer[2];
+ ascq = sense_buffer[3];
+ } else {
+ info(udev, "%s: invalid sense code 0x%x\n",
+ dev_scsi->kernel, code);
+ return -1;
+ }
+ info(udev, "%s: sense key 0x%x ASC 0x%x ASCQ 0x%x\n",
+ dev_scsi->kernel, sense_key, asc, ascq);
+ } else {
+ if (sb_len < 4) {
+ info(udev, "%s: sense buffer too small %d bytes, %d bytes too short\n",
+ dev_scsi->kernel, sb_len, 4 - sb_len);
+ return -1;
+ }
+
+ if (sense_buffer[0] < 15)
+ info(udev, "%s: old sense key: 0x%x\n", dev_scsi->kernel, sense_buffer[0] & 0x0f);
+ else
+ info(udev, "%s: sense = %2x %2x\n",
+ dev_scsi->kernel, sense_buffer[0], sense_buffer[2]);
+ info(udev, "%s: non-extended sense class %d code 0x%0x\n",
+ dev_scsi->kernel, sense_class, code);
+
+ }
#ifdef DUMP_SENSE
- for (i = 0, j = 0; (i < s) && (j < 254); i++) {
- dbg(udev, "i %d, j %d\n", i, j);
- out_buffer[j++] = hex_str[(sense_buffer[i] & 0xf0) >> 4];
- out_buffer[j++] = hex_str[sense_buffer[i] & 0x0f];
- out_buffer[j++] = ' ';
- }
- out_buffer[j] = '\0';
- info(udev, "%s: sense dump:\n", dev_scsi->kernel);
- info(udev, "%s: %s\n", dev_scsi->kernel, out_buffer);
+ for (i = 0, j = 0; (i < s) && (j < 254); i++) {
+ dbg(udev, "i %d, j %d\n", i, j);
+ out_buffer[j++] = hex_str[(sense_buffer[i] & 0xf0) >> 4];
+ out_buffer[j++] = hex_str[sense_buffer[i] & 0x0f];
+ out_buffer[j++] = ' ';
+ }
+ out_buffer[j] = '\0';
+ info(udev, "%s: sense dump:\n", dev_scsi->kernel);
+ info(udev, "%s: %s\n", dev_scsi->kernel, out_buffer);
#endif
- return -1;
+ return -1;
}
static int scsi_dump(struct udev *udev,
- struct scsi_id_device *dev_scsi, struct sg_io_hdr *io)
+ struct scsi_id_device *dev_scsi, struct sg_io_hdr *io)
{
- if (!io->status && !io->host_status && !io->msg_status &&
- !io->driver_status) {
- /*
- * Impossible, should not be called.
- */
- info(udev, "%s: called with no error\n", __FUNCTION__);
- return -1;
- }
-
- info(udev, "%s: sg_io failed status 0x%x 0x%x 0x%x 0x%x\n",
- dev_scsi->kernel, io->driver_status, io->host_status, io->msg_status, io->status);
- if (io->status == SCSI_CHECK_CONDITION)
- return scsi_dump_sense(udev, dev_scsi, io->sbp, io->sb_len_wr);
- else
- return -1;
+ if (!io->status && !io->host_status && !io->msg_status &&
+ !io->driver_status) {
+ /*
+ * Impossible, should not be called.
+ */
+ info(udev, "%s: called with no error\n", __FUNCTION__);
+ return -1;
+ }
+
+ info(udev, "%s: sg_io failed status 0x%x 0x%x 0x%x 0x%x\n",
+ dev_scsi->kernel, io->driver_status, io->host_status, io->msg_status, io->status);
+ if (io->status == SCSI_CHECK_CONDITION)
+ return scsi_dump_sense(udev, dev_scsi, io->sbp, io->sb_len_wr);
+ else
+ return -1;
}
static int scsi_dump_v4(struct udev *udev,
- struct scsi_id_device *dev_scsi, struct sg_io_v4 *io)
+ struct scsi_id_device *dev_scsi, struct sg_io_v4 *io)
{
- if (!io->device_status && !io->transport_status &&
- !io->driver_status) {
- /*
- * Impossible, should not be called.
- */
- info(udev, "%s: called with no error\n", __FUNCTION__);
- return -1;
- }
-
- info(udev, "%s: sg_io failed status 0x%x 0x%x 0x%x\n",
- dev_scsi->kernel, io->driver_status, io->transport_status,
- io->device_status);
- if (io->device_status == SCSI_CHECK_CONDITION)
- return scsi_dump_sense(udev, dev_scsi, (unsigned char *)(uintptr_t)io->response,
- io->response_len);
- else
- return -1;
+ if (!io->device_status && !io->transport_status &&
+ !io->driver_status) {
+ /*
+ * Impossible, should not be called.
+ */
+ info(udev, "%s: called with no error\n", __FUNCTION__);
+ return -1;
+ }
+
+ info(udev, "%s: sg_io failed status 0x%x 0x%x 0x%x\n",
+ dev_scsi->kernel, io->driver_status, io->transport_status,
+ io->device_status);
+ if (io->device_status == SCSI_CHECK_CONDITION)
+ return scsi_dump_sense(udev, dev_scsi, (unsigned char *)(uintptr_t)io->response,
+ io->response_len);
+ else
+ return -1;
}
static int scsi_inquiry(struct udev *udev,
- struct scsi_id_device *dev_scsi, int fd,
- unsigned char evpd, unsigned char page,
- unsigned char *buf, unsigned int buflen)
+ struct scsi_id_device *dev_scsi, int fd,
+ unsigned char evpd, unsigned char page,
+ unsigned char *buf, unsigned int buflen)
{
- unsigned char inq_cmd[INQUIRY_CMDLEN] =
- { INQUIRY_CMD, evpd, page, 0, buflen, 0 };
- unsigned char sense[SENSE_BUFF_LEN];
- void *io_buf;
- struct sg_io_v4 io_v4;
- struct sg_io_hdr io_hdr;
- int retry = 3; /* rather random */
- int retval;
-
- if (buflen > SCSI_INQ_BUFF_LEN) {
- info(udev, "buflen %d too long\n", buflen);
- return -1;
- }
+ unsigned char inq_cmd[INQUIRY_CMDLEN] =
+ { INQUIRY_CMD, evpd, page, 0, buflen, 0 };
+ unsigned char sense[SENSE_BUFF_LEN];
+ void *io_buf;
+ struct sg_io_v4 io_v4;
+ struct sg_io_hdr io_hdr;
+ int retry = 3; /* rather random */
+ int retval;
+
+ if (buflen > SCSI_INQ_BUFF_LEN) {
+ info(udev, "buflen %d too long\n", buflen);
+ return -1;
+ }
resend:
- dbg(udev, "%s evpd %d, page 0x%x\n", dev_scsi->kernel, evpd, page);
-
- if (dev_scsi->use_sg == 4) {
- memset(&io_v4, 0, sizeof(struct sg_io_v4));
- io_v4.guard = 'Q';
- io_v4.protocol = BSG_PROTOCOL_SCSI;
- io_v4.subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD;
- io_v4.request_len = sizeof(inq_cmd);
- io_v4.request = (uintptr_t)inq_cmd;
- io_v4.max_response_len = sizeof(sense);
- io_v4.response = (uintptr_t)sense;
- io_v4.din_xfer_len = buflen;
- io_v4.din_xferp = (uintptr_t)buf;
- io_buf = (void *)&io_v4;
- } else {
- memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
- io_hdr.interface_id = 'S';
- io_hdr.cmd_len = sizeof(inq_cmd);
- io_hdr.mx_sb_len = sizeof(sense);
- io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
- io_hdr.dxfer_len = buflen;
- io_hdr.dxferp = buf;
- io_hdr.cmdp = inq_cmd;
- io_hdr.sbp = sense;
- io_hdr.timeout = DEF_TIMEOUT;
- io_buf = (void *)&io_hdr;
- }
-
- retval = ioctl(fd, SG_IO, io_buf);
- if (retval < 0) {
- if ((errno == EINVAL || errno == ENOSYS) && dev_scsi->use_sg == 4) {
- dev_scsi->use_sg = 3;
- goto resend;
- }
- info(udev, "%s: ioctl failed: %s\n", dev_scsi->kernel, strerror(errno));
- goto error;
- }
-
- if (dev_scsi->use_sg == 4)
- retval = sg_err_category4(udev, io_buf);
- else
- retval = sg_err_category3(udev, io_buf);
-
- switch (retval) {
- case SG_ERR_CAT_NOTSUPPORTED:
- buf[1] = 0;
- /* Fallthrough */
- case SG_ERR_CAT_CLEAN:
- case SG_ERR_CAT_RECOVERED:
- retval = 0;
- break;
-
- default:
- if (dev_scsi->use_sg == 4)
- retval = scsi_dump_v4(udev, dev_scsi, io_buf);
- else
- retval = scsi_dump(udev, dev_scsi, io_buf);
- }
-
- if (!retval) {
- retval = buflen;
- } else if (retval > 0) {
- if (--retry > 0) {
- dbg(udev, "%s: Retrying ...\n", dev_scsi->kernel);
- goto resend;
- }
- retval = -1;
- }
+ dbg(udev, "%s evpd %d, page 0x%x\n", dev_scsi->kernel, evpd, page);
+
+ if (dev_scsi->use_sg == 4) {
+ memset(&io_v4, 0, sizeof(struct sg_io_v4));
+ io_v4.guard = 'Q';
+ io_v4.protocol = BSG_PROTOCOL_SCSI;
+ io_v4.subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD;
+ io_v4.request_len = sizeof(inq_cmd);
+ io_v4.request = (uintptr_t)inq_cmd;
+ io_v4.max_response_len = sizeof(sense);
+ io_v4.response = (uintptr_t)sense;
+ io_v4.din_xfer_len = buflen;
+ io_v4.din_xferp = (uintptr_t)buf;
+ io_buf = (void *)&io_v4;
+ } else {
+ memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
+ io_hdr.interface_id = 'S';
+ io_hdr.cmd_len = sizeof(inq_cmd);
+ io_hdr.mx_sb_len = sizeof(sense);
+ io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
+ io_hdr.dxfer_len = buflen;
+ io_hdr.dxferp = buf;
+ io_hdr.cmdp = inq_cmd;
+ io_hdr.sbp = sense;
+ io_hdr.timeout = DEF_TIMEOUT;
+ io_buf = (void *)&io_hdr;
+ }
+
+ retval = ioctl(fd, SG_IO, io_buf);
+ if (retval < 0) {
+ if ((errno == EINVAL || errno == ENOSYS) && dev_scsi->use_sg == 4) {
+ dev_scsi->use_sg = 3;
+ goto resend;
+ }
+ info(udev, "%s: ioctl failed: %s\n", dev_scsi->kernel, strerror(errno));
+ goto error;
+ }
+
+ if (dev_scsi->use_sg == 4)
+ retval = sg_err_category4(udev, io_buf);
+ else
+ retval = sg_err_category3(udev, io_buf);
+
+ switch (retval) {
+ case SG_ERR_CAT_NOTSUPPORTED:
+ buf[1] = 0;
+ /* Fallthrough */
+ case SG_ERR_CAT_CLEAN:
+ case SG_ERR_CAT_RECOVERED:
+ retval = 0;
+ break;
+
+ default:
+ if (dev_scsi->use_sg == 4)
+ retval = scsi_dump_v4(udev, dev_scsi, io_buf);
+ else
+ retval = scsi_dump(udev, dev_scsi, io_buf);
+ }
+
+ if (!retval) {
+ retval = buflen;
+ } else if (retval > 0) {
+ if (--retry > 0) {
+ dbg(udev, "%s: Retrying ...\n", dev_scsi->kernel);
+ goto resend;
+ }
+ retval = -1;
+ }
error:
- if (retval < 0)
- info(udev, "%s: Unable to get INQUIRY vpd %d page 0x%x.\n",
- dev_scsi->kernel, evpd, page);
+ if (retval < 0)
+ info(udev, "%s: Unable to get INQUIRY vpd %d page 0x%x.\n",
+ dev_scsi->kernel, evpd, page);
- return retval;
+ return retval;
}
/* Get list of supported EVPD pages */
static int do_scsi_page0_inquiry(struct udev *udev,
- struct scsi_id_device *dev_scsi, int fd,
- unsigned char *buffer, unsigned int len)
+ struct scsi_id_device *dev_scsi, int fd,
+ unsigned char *buffer, unsigned int len)
{
- int retval;
-
- memset(buffer, 0, len);
- retval = scsi_inquiry(udev, dev_scsi, fd, 1, 0x0, buffer, len);
- if (retval < 0)
- return 1;
-
- if (buffer[1] != 0) {
- info(udev, "%s: page 0 not available.\n", dev_scsi->kernel);
- return 1;
- }
- if (buffer[3] > len) {
- info(udev, "%s: page 0 buffer too long %d\n", dev_scsi->kernel, buffer[3]);
- return 1;
- }
-
- /*
- * Following check is based on code once included in the 2.5.x
- * kernel.
- *
- * Some ill behaved devices return the standard inquiry here
- * rather than the evpd data, snoop the data to verify.
- */
- if (buffer[3] > MODEL_LENGTH) {
- /*
- * If the vendor id appears in the page assume the page is
- * invalid.
- */
- if (!strncmp((char *)&buffer[VENDOR_LENGTH], dev_scsi->vendor, VENDOR_LENGTH)) {
- info(udev, "%s: invalid page0 data\n", dev_scsi->kernel);
- return 1;
- }
- }
- return 0;
+ int retval;
+
+ memset(buffer, 0, len);
+ retval = scsi_inquiry(udev, dev_scsi, fd, 1, 0x0, buffer, len);
+ if (retval < 0)
+ return 1;
+
+ if (buffer[1] != 0) {
+ info(udev, "%s: page 0 not available.\n", dev_scsi->kernel);
+ return 1;
+ }
+ if (buffer[3] > len) {
+ info(udev, "%s: page 0 buffer too long %d\n", dev_scsi->kernel, buffer[3]);
+ return 1;
+ }
+
+ /*
+ * Following check is based on code once included in the 2.5.x
+ * kernel.
+ *
+ * Some ill behaved devices return the standard inquiry here
+ * rather than the evpd data, snoop the data to verify.
+ */
+ if (buffer[3] > MODEL_LENGTH) {
+ /*
+ * If the vendor id appears in the page assume the page is
+ * invalid.
+ */
+ if (!strncmp((char *)&buffer[VENDOR_LENGTH], dev_scsi->vendor, VENDOR_LENGTH)) {
+ info(udev, "%s: invalid page0 data\n", dev_scsi->kernel);
+ return 1;
+ }
+ }
+ return 0;
}
/*
* model.
*/
static int prepend_vendor_model(struct udev *udev,
- struct scsi_id_device *dev_scsi, char *serial)
+ struct scsi_id_device *dev_scsi, char *serial)
{
- int ind;
-
- strncpy(serial, dev_scsi->vendor, VENDOR_LENGTH);
- strncat(serial, dev_scsi->model, MODEL_LENGTH);
- ind = strlen(serial);
-
- /*
- * This is not a complete check, since we are using strncat/cpy
- * above, ind will never be too large.
- */
- if (ind != (VENDOR_LENGTH + MODEL_LENGTH)) {
- info(udev, "%s: expected length %d, got length %d\n",
- dev_scsi->kernel, (VENDOR_LENGTH + MODEL_LENGTH), ind);
- return -1;
- }
- return ind;
+ int ind;
+
+ strncpy(serial, dev_scsi->vendor, VENDOR_LENGTH);
+ strncat(serial, dev_scsi->model, MODEL_LENGTH);
+ ind = strlen(serial);
+
+ /*
+ * This is not a complete check, since we are using strncat/cpy
+ * above, ind will never be too large.
+ */
+ if (ind != (VENDOR_LENGTH + MODEL_LENGTH)) {
+ info(udev, "%s: expected length %d, got length %d\n",
+ dev_scsi->kernel, (VENDOR_LENGTH + MODEL_LENGTH), ind);
+ return -1;
+ }
+ return ind;
}
/**
* serial number.
**/
static int check_fill_0x83_id(struct udev *udev,
- struct scsi_id_device *dev_scsi,
- unsigned char *page_83,
- const struct scsi_id_search_values
- *id_search, char *serial, char *serial_short,
- int max_len, char *wwn,
- char *wwn_vendor_extension, char *tgpt_group)
+ struct scsi_id_device *dev_scsi,
+ unsigned char *page_83,
+ const struct scsi_id_search_values
+ *id_search, char *serial, char *serial_short,
+ int max_len, char *wwn,
+ char *wwn_vendor_extension, char *tgpt_group)
{
- int i, j, s, len;
-
- /*
- * ASSOCIATION must be with the device (value 0)
- * or with the target port for SCSI_ID_TGTPORT
- */
- if ((page_83[1] & 0x30) == 0x10) {
- if (id_search->id_type != SCSI_ID_TGTGROUP)
- return 1;
- } else if ((page_83[1] & 0x30) != 0) {
- return 1;
- }
-
- if ((page_83[1] & 0x0f) != id_search->id_type)
- return 1;
-
- /*
- * Possibly check NAA sub-type.
- */
- if ((id_search->naa_type != SCSI_ID_NAA_DONT_CARE) &&
- (id_search->naa_type != (page_83[4] & 0xf0) >> 4))
- return 1;
-
- /*
- * Check for matching code set - ASCII or BINARY.
- */
- if ((page_83[0] & 0x0f) != id_search->code_set)
- return 1;
-
- /*
- * page_83[3]: identifier length
- */
- len = page_83[3];
- if ((page_83[0] & 0x0f) != SCSI_ID_ASCII)
- /*
- * If not ASCII, use two bytes for each binary value.
- */
- len *= 2;
-
- /*
- * Add one byte for the NUL termination, and one for the id_type.
- */
- len += 2;
- if (id_search->id_type == SCSI_ID_VENDOR_SPECIFIC)
- len += VENDOR_LENGTH + MODEL_LENGTH;
-
- if (max_len < len) {
- info(udev, "%s: length %d too short - need %d\n",
- dev_scsi->kernel, max_len, len);
- return 1;
- }
-
- if (id_search->id_type == SCSI_ID_TGTGROUP && tgpt_group != NULL) {
- unsigned int group;
-
- group = ((unsigned int)page_83[6] << 8) | page_83[7];
- sprintf(tgpt_group,"%x", group);
- return 1;
- }
-
- serial[0] = hex_str[id_search->id_type];
-
- /*
- * For SCSI_ID_VENDOR_SPECIFIC prepend the vendor and model before
- * the id since it is not unique across all vendors and models,
- * this differs from SCSI_ID_T10_VENDOR, where the vendor is
- * included in the identifier.
- */
- if (id_search->id_type == SCSI_ID_VENDOR_SPECIFIC)
- if (prepend_vendor_model(udev, dev_scsi, &serial[1]) < 0) {
- dbg(udev, "prepend failed\n");
- return 1;
- }
-
- i = 4; /* offset to the start of the identifier */
- s = j = strlen(serial);
- if ((page_83[0] & 0x0f) == SCSI_ID_ASCII) {
- /*
- * ASCII descriptor.
- */
- while (i < (4 + page_83[3]))
- serial[j++] = page_83[i++];
- } else {
- /*
- * Binary descriptor, convert to ASCII, using two bytes of
- * ASCII for each byte in the page_83.
- */
- while (i < (4 + page_83[3])) {
- serial[j++] = hex_str[(page_83[i] & 0xf0) >> 4];
- serial[j++] = hex_str[page_83[i] & 0x0f];
- i++;
- }
- }
-
- strcpy(serial_short, &serial[s]);
-
- if (id_search->id_type == SCSI_ID_NAA && wwn != NULL) {
- strncpy(wwn, &serial[s], 16);
- if (wwn_vendor_extension != NULL) {
- strncpy(wwn_vendor_extension, &serial[s + 16], 16);
- }
- }
-
- return 0;
+ int i, j, s, len;
+
+ /*
+ * ASSOCIATION must be with the device (value 0)
+ * or with the target port for SCSI_ID_TGTPORT
+ */
+ if ((page_83[1] & 0x30) == 0x10) {
+ if (id_search->id_type != SCSI_ID_TGTGROUP)
+ return 1;
+ } else if ((page_83[1] & 0x30) != 0) {
+ return 1;
+ }
+
+ if ((page_83[1] & 0x0f) != id_search->id_type)
+ return 1;
+
+ /*
+ * Possibly check NAA sub-type.
+ */
+ if ((id_search->naa_type != SCSI_ID_NAA_DONT_CARE) &&
+ (id_search->naa_type != (page_83[4] & 0xf0) >> 4))
+ return 1;
+
+ /*
+ * Check for matching code set - ASCII or BINARY.
+ */
+ if ((page_83[0] & 0x0f) != id_search->code_set)
+ return 1;
+
+ /*
+ * page_83[3]: identifier length
+ */
+ len = page_83[3];
+ if ((page_83[0] & 0x0f) != SCSI_ID_ASCII)
+ /*
+ * If not ASCII, use two bytes for each binary value.
+ */
+ len *= 2;
+
+ /*
+ * Add one byte for the NUL termination, and one for the id_type.
+ */
+ len += 2;
+ if (id_search->id_type == SCSI_ID_VENDOR_SPECIFIC)
+ len += VENDOR_LENGTH + MODEL_LENGTH;
+
+ if (max_len < len) {
+ info(udev, "%s: length %d too short - need %d\n",
+ dev_scsi->kernel, max_len, len);
+ return 1;
+ }
+
+ if (id_search->id_type == SCSI_ID_TGTGROUP && tgpt_group != NULL) {
+ unsigned int group;
+
+ group = ((unsigned int)page_83[6] << 8) | page_83[7];
+ sprintf(tgpt_group,"%x", group);
+ return 1;
+ }
+
+ serial[0] = hex_str[id_search->id_type];
+
+ /*
+ * For SCSI_ID_VENDOR_SPECIFIC prepend the vendor and model before
+ * the id since it is not unique across all vendors and models,
+ * this differs from SCSI_ID_T10_VENDOR, where the vendor is
+ * included in the identifier.
+ */
+ if (id_search->id_type == SCSI_ID_VENDOR_SPECIFIC)
+ if (prepend_vendor_model(udev, dev_scsi, &serial[1]) < 0) {
+ dbg(udev, "prepend failed\n");
+ return 1;
+ }
+
+ i = 4; /* offset to the start of the identifier */
+ s = j = strlen(serial);
+ if ((page_83[0] & 0x0f) == SCSI_ID_ASCII) {
+ /*
+ * ASCII descriptor.
+ */
+ while (i < (4 + page_83[3]))
+ serial[j++] = page_83[i++];
+ } else {
+ /*
+ * Binary descriptor, convert to ASCII, using two bytes of
+ * ASCII for each byte in the page_83.
+ */
+ while (i < (4 + page_83[3])) {
+ serial[j++] = hex_str[(page_83[i] & 0xf0) >> 4];
+ serial[j++] = hex_str[page_83[i] & 0x0f];
+ i++;
+ }
+ }
+
+ strcpy(serial_short, &serial[s]);
+
+ if (id_search->id_type == SCSI_ID_NAA && wwn != NULL) {
+ strncpy(wwn, &serial[s], 16);
+ if (wwn_vendor_extension != NULL) {
+ strncpy(wwn_vendor_extension, &serial[s + 16], 16);
+ }
+ }
+
+ return 0;
}
/* Extract the raw binary from VPD 0x83 pre-SPC devices */
static int check_fill_0x83_prespc3(struct udev *udev,
- struct scsi_id_device *dev_scsi,
- unsigned char *page_83,
- const struct scsi_id_search_values
- *id_search, char *serial, char *serial_short, int max_len)
+ struct scsi_id_device *dev_scsi,
+ unsigned char *page_83,
+ const struct scsi_id_search_values
+ *id_search, char *serial, char *serial_short, int max_len)
{
- int i, j;
-
- dbg(udev, "using pre-spc3-83 for %s\n", dev_scsi->kernel);
- serial[0] = hex_str[id_search->id_type];
- /* serial has been memset to zero before */
- j = strlen(serial); /* j = 1; */
-
- for (i = 0; (i < page_83[3]) && (j < max_len-3); ++i) {
- serial[j++] = hex_str[(page_83[4+i] & 0xf0) >> 4];
- serial[j++] = hex_str[ page_83[4+i] & 0x0f];
- }
- serial[max_len-1] = 0;
- strncpy(serial_short, serial, max_len-1);
- return 0;
+ int i, j;
+
+ dbg(udev, "using pre-spc3-83 for %s\n", dev_scsi->kernel);
+ serial[0] = hex_str[id_search->id_type];
+ /* serial has been memset to zero before */
+ j = strlen(serial); /* j = 1; */
+
+ for (i = 0; (i < page_83[3]) && (j < max_len-3); ++i) {
+ serial[j++] = hex_str[(page_83[4+i] & 0xf0) >> 4];
+ serial[j++] = hex_str[ page_83[4+i] & 0x0f];
+ }
+ serial[max_len-1] = 0;
+ strncpy(serial_short, serial, max_len-1);
+ return 0;
}
/* Get device identification VPD page */
static int do_scsi_page83_inquiry(struct udev *udev,
- struct scsi_id_device *dev_scsi, int fd,
- char *serial, char *serial_short, int len,
- char *unit_serial_number, char *wwn,
- char *wwn_vendor_extension, char *tgpt_group)
+ struct scsi_id_device *dev_scsi, int fd,
+ char *serial, char *serial_short, int len,
+ char *unit_serial_number, char *wwn,
+ char *wwn_vendor_extension, char *tgpt_group)
{
- int retval;
- unsigned int id_ind, j;
- unsigned char page_83[SCSI_INQ_BUFF_LEN];
+ int retval;
+ unsigned int id_ind, j;
+ unsigned char page_83[SCSI_INQ_BUFF_LEN];
- /* also pick up the page 80 serial number */
+ /* also pick up the page 80 serial number */
do_scsi_page80_inquiry(udev, dev_scsi, fd, NULL, unit_serial_number, MAX_SERIAL_LEN);
- memset(page_83, 0, SCSI_INQ_BUFF_LEN);
- retval = scsi_inquiry(udev, dev_scsi, fd, 1, PAGE_83, page_83,
- SCSI_INQ_BUFF_LEN);
- if (retval < 0)
- return 1;
-
- if (page_83[1] != PAGE_83) {
- info(udev, "%s: Invalid page 0x83\n", dev_scsi->kernel);
- return 1;
- }
-
- /*
- * XXX Some devices (IBM 3542) return all spaces for an identifier if
- * the LUN is not actually configured. This leads to identifiers of
- * the form: "1 ".
- */
-
- /*
- * Model 4, 5, and (some) model 6 EMC Symmetrix devices return
- * a page 83 reply according to SCSI-2 format instead of SPC-2/3.
- *
- * The SCSI-2 page 83 format returns an IEEE WWN in binary
- * encoded hexi-decimal in the 16 bytes following the initial
- * 4-byte page 83 reply header.
- *
- * Both the SPC-2 and SPC-3 formats return an IEEE WWN as part
- * of an Identification descriptor. The 3rd byte of the first
- * Identification descriptor is a reserved (BSZ) byte field.
- *
- * Reference the 7th byte of the page 83 reply to determine
- * whether the reply is compliant with SCSI-2 or SPC-2/3
- * specifications. A zero value in the 7th byte indicates
- * an SPC-2/3 conformant reply, (i.e., the reserved field of the
- * first Identification descriptor). This byte will be non-zero
- * for a SCSI-2 conformant page 83 reply from these EMC
- * Symmetrix models since the 7th byte of the reply corresponds
- * to the 4th and 5th nibbles of the 6-byte OUI for EMC, that is,
- * 0x006048.
- */
-
- if (page_83[6] != 0)
- return check_fill_0x83_prespc3(udev,
- dev_scsi, page_83, id_search_list,
- serial, serial_short, len);
-
- /*
- * Search for a match in the prioritized id_search_list - since WWN ids
+ memset(page_83, 0, SCSI_INQ_BUFF_LEN);
+ retval = scsi_inquiry(udev, dev_scsi, fd, 1, PAGE_83, page_83,
+ SCSI_INQ_BUFF_LEN);
+ if (retval < 0)
+ return 1;
+
+ if (page_83[1] != PAGE_83) {
+ info(udev, "%s: Invalid page 0x83\n", dev_scsi->kernel);
+ return 1;
+ }
+
+ /*
+ * XXX Some devices (IBM 3542) return all spaces for an identifier if
+ * the LUN is not actually configured. This leads to identifiers of
+ * the form: "1 ".
+ */
+
+ /*
+ * Model 4, 5, and (some) model 6 EMC Symmetrix devices return
+ * a page 83 reply according to SCSI-2 format instead of SPC-2/3.
+ *
+ * The SCSI-2 page 83 format returns an IEEE WWN in binary
+ * encoded hexi-decimal in the 16 bytes following the initial
+ * 4-byte page 83 reply header.
+ *
+ * Both the SPC-2 and SPC-3 formats return an IEEE WWN as part
+ * of an Identification descriptor. The 3rd byte of the first
+ * Identification descriptor is a reserved (BSZ) byte field.
+ *
+ * Reference the 7th byte of the page 83 reply to determine
+ * whether the reply is compliant with SCSI-2 or SPC-2/3
+ * specifications. A zero value in the 7th byte indicates
+ * an SPC-2/3 conformant reply, (i.e., the reserved field of the
+ * first Identification descriptor). This byte will be non-zero
+ * for a SCSI-2 conformant page 83 reply from these EMC
+ * Symmetrix models since the 7th byte of the reply corresponds
+ * to the 4th and 5th nibbles of the 6-byte OUI for EMC, that is,
+ * 0x006048.
+ */
+
+ if (page_83[6] != 0)
+ return check_fill_0x83_prespc3(udev,
+ dev_scsi, page_83, id_search_list,
+ serial, serial_short, len);
+
+ /*
+ * Search for a match in the prioritized id_search_list - since WWN ids
* come first we can pick up the WWN in check_fill_0x83_id().
- */
- for (id_ind = 0;
- id_ind < sizeof(id_search_list)/sizeof(id_search_list[0]);
- id_ind++) {
- /*
- * Examine each descriptor returned. There is normally only
- * one or a small number of descriptors.
- */
- for (j = 4; j <= (unsigned int)page_83[3] + 3; j += page_83[j + 3] + 4) {
- retval = check_fill_0x83_id(udev,
- dev_scsi, &page_83[j],
- &id_search_list[id_ind],
- serial, serial_short, len,
- wwn, wwn_vendor_extension,
- tgpt_group);
- dbg(udev, "%s id desc %d/%d/%d\n", dev_scsi->kernel,
- id_search_list[id_ind].id_type,
- id_search_list[id_ind].naa_type,
- id_search_list[id_ind].code_set);
- if (!retval) {
- dbg(udev, " used\n");
- return retval;
- } else if (retval < 0) {
- dbg(udev, " failed\n");
- return retval;
- } else {
- dbg(udev, " not used\n");
- }
- }
- }
- return 1;
+ */
+ for (id_ind = 0;
+ id_ind < sizeof(id_search_list)/sizeof(id_search_list[0]);
+ id_ind++) {
+ /*
+ * Examine each descriptor returned. There is normally only
+ * one or a small number of descriptors.
+ */
+ for (j = 4; j <= (unsigned int)page_83[3] + 3; j += page_83[j + 3] + 4) {
+ retval = check_fill_0x83_id(udev,
+ dev_scsi, &page_83[j],
+ &id_search_list[id_ind],
+ serial, serial_short, len,
+ wwn, wwn_vendor_extension,
+ tgpt_group);
+ dbg(udev, "%s id desc %d/%d/%d\n", dev_scsi->kernel,
+ id_search_list[id_ind].id_type,
+ id_search_list[id_ind].naa_type,
+ id_search_list[id_ind].code_set);
+ if (!retval) {
+ dbg(udev, " used\n");
+ return retval;
+ } else if (retval < 0) {
+ dbg(udev, " failed\n");
+ return retval;
+ } else {
+ dbg(udev, " not used\n");
+ }
+ }
+ }
+ return 1;
}
/*
* conformant to the SCSI-2 format.
*/
static int do_scsi_page83_prespc3_inquiry(struct udev *udev,
- struct scsi_id_device *dev_scsi, int fd,
- char *serial, char *serial_short, int len)
+ struct scsi_id_device *dev_scsi, int fd,
+ char *serial, char *serial_short, int len)
{
- int retval;
- int i, j;
- unsigned char page_83[SCSI_INQ_BUFF_LEN];
-
- memset(page_83, 0, SCSI_INQ_BUFF_LEN);
- retval = scsi_inquiry(udev, dev_scsi, fd, 1, PAGE_83, page_83, SCSI_INQ_BUFF_LEN);
- if (retval < 0)
- return 1;
-
- if (page_83[1] != PAGE_83) {
- info(udev, "%s: Invalid page 0x83\n", dev_scsi->kernel);
- return 1;
- }
- /*
- * Model 4, 5, and (some) model 6 EMC Symmetrix devices return
- * a page 83 reply according to SCSI-2 format instead of SPC-2/3.
- *
- * The SCSI-2 page 83 format returns an IEEE WWN in binary
- * encoded hexi-decimal in the 16 bytes following the initial
- * 4-byte page 83 reply header.
- *
- * Both the SPC-2 and SPC-3 formats return an IEEE WWN as part
- * of an Identification descriptor. The 3rd byte of the first
- * Identification descriptor is a reserved (BSZ) byte field.
- *
- * Reference the 7th byte of the page 83 reply to determine
- * whether the reply is compliant with SCSI-2 or SPC-2/3
- * specifications. A zero value in the 7th byte indicates
- * an SPC-2/3 conformant reply, (i.e., the reserved field of the
- * first Identification descriptor). This byte will be non-zero
- * for a SCSI-2 conformant page 83 reply from these EMC
- * Symmetrix models since the 7th byte of the reply corresponds
- * to the 4th and 5th nibbles of the 6-byte OUI for EMC, that is,
- * 0x006048.
- */
- if (page_83[6] == 0)
- return 2;
-
- serial[0] = hex_str[id_search_list[0].id_type];
- /*
- * The first four bytes contain data, not a descriptor.
- */
- i = 4;
- j = strlen(serial);
- /*
- * Binary descriptor, convert to ASCII,
- * using two bytes of ASCII for each byte
- * in the page_83.
- */
- while (i < (page_83[3]+4)) {
- serial[j++] = hex_str[(page_83[i] & 0xf0) >> 4];
- serial[j++] = hex_str[page_83[i] & 0x0f];
- i++;
- }
- dbg(udev, "using pre-spc3-83 for %s\n", dev_scsi->kernel);
- return 0;
+ int retval;
+ int i, j;
+ unsigned char page_83[SCSI_INQ_BUFF_LEN];
+
+ memset(page_83, 0, SCSI_INQ_BUFF_LEN);
+ retval = scsi_inquiry(udev, dev_scsi, fd, 1, PAGE_83, page_83, SCSI_INQ_BUFF_LEN);
+ if (retval < 0)
+ return 1;
+
+ if (page_83[1] != PAGE_83) {
+ info(udev, "%s: Invalid page 0x83\n", dev_scsi->kernel);
+ return 1;
+ }
+ /*
+ * Model 4, 5, and (some) model 6 EMC Symmetrix devices return
+ * a page 83 reply according to SCSI-2 format instead of SPC-2/3.
+ *
+ * The SCSI-2 page 83 format returns an IEEE WWN in binary
+ * encoded hexi-decimal in the 16 bytes following the initial
+ * 4-byte page 83 reply header.
+ *
+ * Both the SPC-2 and SPC-3 formats return an IEEE WWN as part
+ * of an Identification descriptor. The 3rd byte of the first
+ * Identification descriptor is a reserved (BSZ) byte field.
+ *
+ * Reference the 7th byte of the page 83 reply to determine
+ * whether the reply is compliant with SCSI-2 or SPC-2/3
+ * specifications. A zero value in the 7th byte indicates
+ * an SPC-2/3 conformant reply, (i.e., the reserved field of the
+ * first Identification descriptor). This byte will be non-zero
+ * for a SCSI-2 conformant page 83 reply from these EMC
+ * Symmetrix models since the 7th byte of the reply corresponds
+ * to the 4th and 5th nibbles of the 6-byte OUI for EMC, that is,
+ * 0x006048.
+ */
+ if (page_83[6] == 0)
+ return 2;
+
+ serial[0] = hex_str[id_search_list[0].id_type];
+ /*
+ * The first four bytes contain data, not a descriptor.
+ */
+ i = 4;
+ j = strlen(serial);
+ /*
+ * Binary descriptor, convert to ASCII,
+ * using two bytes of ASCII for each byte
+ * in the page_83.
+ */
+ while (i < (page_83[3]+4)) {
+ serial[j++] = hex_str[(page_83[i] & 0xf0) >> 4];
+ serial[j++] = hex_str[page_83[i] & 0x0f];
+ i++;
+ }
+ dbg(udev, "using pre-spc3-83 for %s\n", dev_scsi->kernel);
+ return 0;
}
/* Get unit serial number VPD page */
static int do_scsi_page80_inquiry(struct udev *udev,
- struct scsi_id_device *dev_scsi, int fd,
- char *serial, char *serial_short, int max_len)
+ struct scsi_id_device *dev_scsi, int fd,
+ char *serial, char *serial_short, int max_len)
{
- int retval;
- int ser_ind;
- int i;
- int len;
- unsigned char buf[SCSI_INQ_BUFF_LEN];
-
- memset(buf, 0, SCSI_INQ_BUFF_LEN);
- retval = scsi_inquiry(udev, dev_scsi, fd, 1, PAGE_80, buf, SCSI_INQ_BUFF_LEN);
- if (retval < 0)
- return retval;
-
- if (buf[1] != PAGE_80) {
- info(udev, "%s: Invalid page 0x80\n", dev_scsi->kernel);
- return 1;
- }
-
- len = 1 + VENDOR_LENGTH + MODEL_LENGTH + buf[3];
- if (max_len < len) {
- info(udev, "%s: length %d too short - need %d\n",
- dev_scsi->kernel, max_len, len);
- return 1;
- }
- /*
- * Prepend 'S' to avoid unlikely collision with page 0x83 vendor
- * specific type where we prepend '0' + vendor + model.
- */
+ int retval;
+ int ser_ind;
+ int i;
+ int len;
+ unsigned char buf[SCSI_INQ_BUFF_LEN];
+
+ memset(buf, 0, SCSI_INQ_BUFF_LEN);
+ retval = scsi_inquiry(udev, dev_scsi, fd, 1, PAGE_80, buf, SCSI_INQ_BUFF_LEN);
+ if (retval < 0)
+ return retval;
+
+ if (buf[1] != PAGE_80) {
+ info(udev, "%s: Invalid page 0x80\n", dev_scsi->kernel);
+ return 1;
+ }
+
+ len = 1 + VENDOR_LENGTH + MODEL_LENGTH + buf[3];
+ if (max_len < len) {
+ info(udev, "%s: length %d too short - need %d\n",
+ dev_scsi->kernel, max_len, len);
+ return 1;
+ }
+ /*
+ * Prepend 'S' to avoid unlikely collision with page 0x83 vendor
+ * specific type where we prepend '0' + vendor + model.
+ */
len = buf[3];
if (serial != NULL) {
serial[0] = 'S';
memcpy(serial_short, &buf[4], len);
serial_short[len] = '\0';
}
- return 0;
+ return 0;
}
int scsi_std_inquiry(struct udev *udev,
- struct scsi_id_device *dev_scsi, const char *devname)
+ struct scsi_id_device *dev_scsi, const char *devname)
{
- int fd;
- unsigned char buf[SCSI_INQ_BUFF_LEN];
- struct stat statbuf;
- int err = 0;
-
- dbg(udev, "opening %s\n", devname);
- fd = open(devname, O_RDONLY | O_NONBLOCK);
- if (fd < 0) {
- info(udev, "scsi_id: cannot open %s: %s\n",
- devname, strerror(errno));
- return 1;
- }
-
- if (fstat(fd, &statbuf) < 0) {
- info(udev, "scsi_id: cannot stat %s: %s\n",
- devname, strerror(errno));
- err = 2;
- goto out;
- }
- sprintf(dev_scsi->kernel,"%d:%d", major(statbuf.st_rdev),
- minor(statbuf.st_rdev));
-
- memset(buf, 0, SCSI_INQ_BUFF_LEN);
- err = scsi_inquiry(udev, dev_scsi, fd, 0, 0, buf, SCSI_INQ_BUFF_LEN);
- if (err < 0)
- goto out;
-
- err = 0;
- memcpy(dev_scsi->vendor, buf + 8, 8);
- dev_scsi->vendor[8] = '\0';
- memcpy(dev_scsi->model, buf + 16, 16);
- dev_scsi->model[16] = '\0';
- memcpy(dev_scsi->revision, buf + 32, 4);
- dev_scsi->revision[4] = '\0';
- sprintf(dev_scsi->type,"%x", buf[0] & 0x1f);
+ int fd;
+ unsigned char buf[SCSI_INQ_BUFF_LEN];
+ struct stat statbuf;
+ int err = 0;
+
+ dbg(udev, "opening %s\n", devname);
+ fd = open(devname, O_RDONLY | O_NONBLOCK);
+ if (fd < 0) {
+ info(udev, "scsi_id: cannot open %s: %s\n",
+ devname, strerror(errno));
+ return 1;
+ }
+
+ if (fstat(fd, &statbuf) < 0) {
+ info(udev, "scsi_id: cannot stat %s: %s\n",
+ devname, strerror(errno));
+ err = 2;
+ goto out;
+ }
+ sprintf(dev_scsi->kernel,"%d:%d", major(statbuf.st_rdev),
+ minor(statbuf.st_rdev));
+
+ memset(buf, 0, SCSI_INQ_BUFF_LEN);
+ err = scsi_inquiry(udev, dev_scsi, fd, 0, 0, buf, SCSI_INQ_BUFF_LEN);
+ if (err < 0)
+ goto out;
+
+ err = 0;
+ memcpy(dev_scsi->vendor, buf + 8, 8);
+ dev_scsi->vendor[8] = '\0';
+ memcpy(dev_scsi->model, buf + 16, 16);
+ dev_scsi->model[16] = '\0';
+ memcpy(dev_scsi->revision, buf + 32, 4);
+ dev_scsi->revision[4] = '\0';
+ sprintf(dev_scsi->type,"%x", buf[0] & 0x1f);
out:
- close(fd);
- return err;
+ close(fd);
+ return err;
}
int scsi_get_serial(struct udev *udev,
- struct scsi_id_device *dev_scsi, const char *devname,
- int page_code, int len)
+ struct scsi_id_device *dev_scsi, const char *devname,
+ int page_code, int len)
{
- unsigned char page0[SCSI_INQ_BUFF_LEN];
- int fd = -1;
- int cnt;
- int ind;
- int retval;
-
- memset(dev_scsi->serial, 0, len);
- dbg(udev, "opening %s\n", devname);
- srand((unsigned int)getpid());
- for (cnt = 20; cnt > 0; cnt--) {
- struct timespec duration;
-
- fd = open(devname, O_RDONLY | O_NONBLOCK);
- if (fd >= 0 || errno != EBUSY)
- break;
- duration.tv_sec = 0;
- duration.tv_nsec = (200 * 1000 * 1000) + (rand() % 100 * 1000 * 1000);
- nanosleep(&duration, NULL);
- }
- if (fd < 0)
- return 1;
-
- if (page_code == PAGE_80) {
- if (do_scsi_page80_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len)) {
- retval = 1;
- goto completed;
- } else {
- retval = 0;
- goto completed;
- }
- } else if (page_code == PAGE_83) {
- if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension, dev_scsi->tgpt_group)) {
- retval = 1;
- goto completed;
- } else {
- retval = 0;
- goto completed;
- }
- } else if (page_code == PAGE_83_PRE_SPC3) {
- retval = do_scsi_page83_prespc3_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len);
- if (retval) {
- /*
- * Fallback to servicing a SPC-2/3 compliant page 83
- * inquiry if the page 83 reply format does not
- * conform to pre-SPC3 expectations.
- */
- if (retval == 2) {
- if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension, dev_scsi->tgpt_group)) {
- retval = 1;
- goto completed;
- } else {
- retval = 0;
- goto completed;
- }
- }
- else {
- retval = 1;
- goto completed;
- }
- } else {
- retval = 0;
- goto completed;
- }
- } else if (page_code != 0x00) {
- info(udev, "%s: unsupported page code 0x%d\n", dev_scsi->kernel, page_code);
- return 1;
- }
-
- /*
- * Get page 0, the page of the pages. By default, try from best to
- * worst of supported pages: 0x83 then 0x80.
- */
- if (do_scsi_page0_inquiry(udev, dev_scsi, fd, page0, SCSI_INQ_BUFF_LEN)) {
- /*
- * Don't try anything else. Black list if a specific page
- * should be used for this vendor+model, or maybe have an
- * optional fall-back to page 0x80 or page 0x83.
- */
- retval = 1;
- goto completed;
- }
-
- dbg(udev, "%s: Checking page0\n", dev_scsi->kernel);
-
- for (ind = 4; ind <= page0[3] + 3; ind++)
- if (page0[ind] == PAGE_83)
- if (!do_scsi_page83_inquiry(udev, dev_scsi, fd,
- dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension, dev_scsi->tgpt_group)) {
- /*
- * Success
- */
- retval = 0;
- goto completed;
- }
-
- for (ind = 4; ind <= page0[3] + 3; ind++)
- if (page0[ind] == PAGE_80)
- if (!do_scsi_page80_inquiry(udev, dev_scsi, fd,
- dev_scsi->serial, dev_scsi->serial_short, len)) {
- /*
- * Success
- */
- retval = 0;
- goto completed;
- }
- retval = 1;
+ unsigned char page0[SCSI_INQ_BUFF_LEN];
+ int fd = -1;
+ int cnt;
+ int ind;
+ int retval;
+
+ memset(dev_scsi->serial, 0, len);
+ dbg(udev, "opening %s\n", devname);
+ srand((unsigned int)getpid());
+ for (cnt = 20; cnt > 0; cnt--) {
+ struct timespec duration;
+
+ fd = open(devname, O_RDONLY | O_NONBLOCK);
+ if (fd >= 0 || errno != EBUSY)
+ break;
+ duration.tv_sec = 0;
+ duration.tv_nsec = (200 * 1000 * 1000) + (rand() % 100 * 1000 * 1000);
+ nanosleep(&duration, NULL);
+ }
+ if (fd < 0)
+ return 1;
+
+ if (page_code == PAGE_80) {
+ if (do_scsi_page80_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len)) {
+ retval = 1;
+ goto completed;
+ } else {
+ retval = 0;
+ goto completed;
+ }
+ } else if (page_code == PAGE_83) {
+ if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension, dev_scsi->tgpt_group)) {
+ retval = 1;
+ goto completed;
+ } else {
+ retval = 0;
+ goto completed;
+ }
+ } else if (page_code == PAGE_83_PRE_SPC3) {
+ retval = do_scsi_page83_prespc3_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len);
+ if (retval) {
+ /*
+ * Fallback to servicing a SPC-2/3 compliant page 83
+ * inquiry if the page 83 reply format does not
+ * conform to pre-SPC3 expectations.
+ */
+ if (retval == 2) {
+ if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension, dev_scsi->tgpt_group)) {
+ retval = 1;
+ goto completed;
+ } else {
+ retval = 0;
+ goto completed;
+ }
+ }
+ else {
+ retval = 1;
+ goto completed;
+ }
+ } else {
+ retval = 0;
+ goto completed;
+ }
+ } else if (page_code != 0x00) {
+ info(udev, "%s: unsupported page code 0x%d\n", dev_scsi->kernel, page_code);
+ return 1;
+ }
+
+ /*
+ * Get page 0, the page of the pages. By default, try from best to
+ * worst of supported pages: 0x83 then 0x80.
+ */
+ if (do_scsi_page0_inquiry(udev, dev_scsi, fd, page0, SCSI_INQ_BUFF_LEN)) {
+ /*
+ * Don't try anything else. Black list if a specific page
+ * should be used for this vendor+model, or maybe have an
+ * optional fall-back to page 0x80 or page 0x83.
+ */
+ retval = 1;
+ goto completed;
+ }
+
+ dbg(udev, "%s: Checking page0\n", dev_scsi->kernel);
+
+ for (ind = 4; ind <= page0[3] + 3; ind++)
+ if (page0[ind] == PAGE_83)
+ if (!do_scsi_page83_inquiry(udev, dev_scsi, fd,
+ dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension, dev_scsi->tgpt_group)) {
+ /*
+ * Success
+ */
+ retval = 0;
+ goto completed;
+ }
+
+ for (ind = 4; ind <= page0[3] + 3; ind++)
+ if (page0[ind] == PAGE_80)
+ if (!do_scsi_page80_inquiry(udev, dev_scsi, fd,
+ dev_scsi->serial, dev_scsi->serial_short, len)) {
+ /*
+ * Success
+ */
+ retval = 0;
+ goto completed;
+ }
+ retval = 1;
completed:
- close(fd);
- return retval;
+ close(fd);
+ return retval;
}
~ianmdlvl / elogind.git / blobdiff