#define COMMAND_TIMEOUT_MSEC (30 * 1000)
static int disk_scsi_inquiry_command(int fd,
- void *buf,
- size_t buf_len)
+ void *buf,
+ size_t buf_len)
{
- struct sg_io_v4 io_v4;
- uint8_t cdb[6];
- uint8_t sense[32];
- int ret;
-
- /*
- * INQUIRY, see SPC-4 section 6.4
- */
- memset(cdb, 0, sizeof(cdb));
- cdb[0] = 0x12; /* OPERATION CODE: INQUIRY */
- cdb[3] = (buf_len >> 8); /* ALLOCATION LENGTH */
- cdb[4] = (buf_len & 0xff);
-
- memset(sense, 0, sizeof(sense));
-
- 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 (cdb);
- io_v4.request = (uintptr_t) cdb;
- io_v4.max_response_len = sizeof (sense);
- io_v4.response = (uintptr_t) sense;
- io_v4.din_xfer_len = buf_len;
- io_v4.din_xferp = (uintptr_t) buf;
- io_v4.timeout = COMMAND_TIMEOUT_MSEC;
-
- ret = ioctl(fd, SG_IO, &io_v4);
- if (ret != 0) {
- /* could be that the driver doesn't do version 4, try version 3 */
- if (errno == EINVAL) {
- struct sg_io_hdr io_hdr;
-
- memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
- io_hdr.interface_id = 'S';
- io_hdr.cmdp = (unsigned char*) cdb;
- io_hdr.cmd_len = sizeof (cdb);
- io_hdr.dxferp = buf;
- io_hdr.dxfer_len = buf_len;
- io_hdr.sbp = sense;
- io_hdr.mx_sb_len = sizeof (sense);
- io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
- io_hdr.timeout = COMMAND_TIMEOUT_MSEC;
-
- ret = ioctl(fd, SG_IO, &io_hdr);
- if (ret != 0)
- goto out;
-
- /* even if the ioctl succeeds, we need to check the return value */
- if (!(io_hdr.status == 0 &&
- io_hdr.host_status == 0 &&
- io_hdr.driver_status == 0)) {
- errno = EIO;
- ret = -1;
- goto out;
- }
- } else {
- goto out;
- }
- }
-
- /* even if the ioctl succeeds, we need to check the return value */
- if (!(io_v4.device_status == 0 &&
- io_v4.transport_status == 0 &&
- io_v4.driver_status == 0)) {
- errno = EIO;
- ret = -1;
- goto out;
- }
+ struct sg_io_v4 io_v4;
+ uint8_t cdb[6];
+ uint8_t sense[32];
+ int ret;
+
+ /*
+ * INQUIRY, see SPC-4 section 6.4
+ */
+ memset(cdb, 0, sizeof(cdb));
+ cdb[0] = 0x12; /* OPERATION CODE: INQUIRY */
+ cdb[3] = (buf_len >> 8); /* ALLOCATION LENGTH */
+ cdb[4] = (buf_len & 0xff);
+
+ memset(sense, 0, sizeof(sense));
+
+ 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 (cdb);
+ io_v4.request = (uintptr_t) cdb;
+ io_v4.max_response_len = sizeof (sense);
+ io_v4.response = (uintptr_t) sense;
+ io_v4.din_xfer_len = buf_len;
+ io_v4.din_xferp = (uintptr_t) buf;
+ io_v4.timeout = COMMAND_TIMEOUT_MSEC;
+
+ ret = ioctl(fd, SG_IO, &io_v4);
+ if (ret != 0) {
+ /* could be that the driver doesn't do version 4, try version 3 */
+ if (errno == EINVAL) {
+ struct sg_io_hdr io_hdr;
+
+ memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
+ io_hdr.interface_id = 'S';
+ io_hdr.cmdp = (unsigned char*) cdb;
+ io_hdr.cmd_len = sizeof (cdb);
+ io_hdr.dxferp = buf;
+ io_hdr.dxfer_len = buf_len;
+ io_hdr.sbp = sense;
+ io_hdr.mx_sb_len = sizeof (sense);
+ io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
+ io_hdr.timeout = COMMAND_TIMEOUT_MSEC;
+
+ ret = ioctl(fd, SG_IO, &io_hdr);
+ if (ret != 0)
+ goto out;
+
+ /* even if the ioctl succeeds, we need to check the return value */
+ if (!(io_hdr.status == 0 &&
+ io_hdr.host_status == 0 &&
+ io_hdr.driver_status == 0)) {
+ errno = EIO;
+ ret = -1;
+ goto out;
+ }
+ } else {
+ goto out;
+ }
+ }
+
+ /* even if the ioctl succeeds, we need to check the return value */
+ if (!(io_v4.device_status == 0 &&
+ io_v4.transport_status == 0 &&
+ io_v4.driver_status == 0)) {
+ errno = EIO;
+ ret = -1;
+ goto out;
+ }
out:
- return ret;
+ return ret;
}
-static int disk_identify_command(int fd,
- void *buf,
- size_t buf_len)
+static int disk_identify_command(int fd,
+ void *buf,
+ size_t buf_len)
{
- struct sg_io_v4 io_v4;
- uint8_t cdb[12];
- uint8_t sense[32];
- uint8_t *desc = sense+8;
- int ret;
-
- /*
- * ATA Pass-Through 12 byte command, as described in
- *
- * T10 04-262r8 ATA Command Pass-Through
- *
- * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
- */
- memset(cdb, 0, sizeof(cdb));
- cdb[0] = 0xa1; /* OPERATION CODE: 12 byte pass through */
- cdb[1] = 4 << 1; /* PROTOCOL: PIO Data-in */
- cdb[2] = 0x2e; /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
- cdb[3] = 0; /* FEATURES */
- cdb[4] = 1; /* SECTORS */
- cdb[5] = 0; /* LBA LOW */
- cdb[6] = 0; /* LBA MID */
- cdb[7] = 0; /* LBA HIGH */
- cdb[8] = 0 & 0x4F; /* SELECT */
- cdb[9] = 0xEC; /* Command: ATA IDENTIFY DEVICE */;
- memset(sense, 0, sizeof(sense));
-
- 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 (cdb);
- io_v4.request = (uintptr_t) cdb;
- io_v4.max_response_len = sizeof (sense);
- io_v4.response = (uintptr_t) sense;
- io_v4.din_xfer_len = buf_len;
- io_v4.din_xferp = (uintptr_t) buf;
- io_v4.timeout = COMMAND_TIMEOUT_MSEC;
-
- ret = ioctl(fd, SG_IO, &io_v4);
- if (ret != 0) {
- /* could be that the driver doesn't do version 4, try version 3 */
- if (errno == EINVAL) {
- struct sg_io_hdr io_hdr;
-
- memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
- io_hdr.interface_id = 'S';
- io_hdr.cmdp = (unsigned char*) cdb;
- io_hdr.cmd_len = sizeof (cdb);
- io_hdr.dxferp = buf;
- io_hdr.dxfer_len = buf_len;
- io_hdr.sbp = sense;
- io_hdr.mx_sb_len = sizeof (sense);
- io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
- io_hdr.timeout = COMMAND_TIMEOUT_MSEC;
-
- ret = ioctl(fd, SG_IO, &io_hdr);
- if (ret != 0)
- goto out;
- } else {
- goto out;
- }
- }
-
- if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
- errno = EIO;
- ret = -1;
- goto out;
- }
+ struct sg_io_v4 io_v4;
+ uint8_t cdb[12];
+ uint8_t sense[32];
+ uint8_t *desc = sense+8;
+ int ret;
+
+ /*
+ * ATA Pass-Through 12 byte command, as described in
+ *
+ * T10 04-262r8 ATA Command Pass-Through
+ *
+ * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
+ */
+ memset(cdb, 0, sizeof(cdb));
+ cdb[0] = 0xa1; /* OPERATION CODE: 12 byte pass through */
+ cdb[1] = 4 << 1; /* PROTOCOL: PIO Data-in */
+ cdb[2] = 0x2e; /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
+ cdb[3] = 0; /* FEATURES */
+ cdb[4] = 1; /* SECTORS */
+ cdb[5] = 0; /* LBA LOW */
+ cdb[6] = 0; /* LBA MID */
+ cdb[7] = 0; /* LBA HIGH */
+ cdb[8] = 0 & 0x4F; /* SELECT */
+ cdb[9] = 0xEC; /* Command: ATA IDENTIFY DEVICE */;
+ memset(sense, 0, sizeof(sense));
+
+ 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 (cdb);
+ io_v4.request = (uintptr_t) cdb;
+ io_v4.max_response_len = sizeof (sense);
+ io_v4.response = (uintptr_t) sense;
+ io_v4.din_xfer_len = buf_len;
+ io_v4.din_xferp = (uintptr_t) buf;
+ io_v4.timeout = COMMAND_TIMEOUT_MSEC;
+
+ ret = ioctl(fd, SG_IO, &io_v4);
+ if (ret != 0) {
+ /* could be that the driver doesn't do version 4, try version 3 */
+ if (errno == EINVAL) {
+ struct sg_io_hdr io_hdr;
+
+ memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
+ io_hdr.interface_id = 'S';
+ io_hdr.cmdp = (unsigned char*) cdb;
+ io_hdr.cmd_len = sizeof (cdb);
+ io_hdr.dxferp = buf;
+ io_hdr.dxfer_len = buf_len;
+ io_hdr.sbp = sense;
+ io_hdr.mx_sb_len = sizeof (sense);
+ io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
+ io_hdr.timeout = COMMAND_TIMEOUT_MSEC;
+
+ ret = ioctl(fd, SG_IO, &io_hdr);
+ if (ret != 0)
+ goto out;
+ } else {
+ goto out;
+ }
+ }
+
+ if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
+ errno = EIO;
+ ret = -1;
+ goto out;
+ }
out:
- return ret;
+ return ret;
}
-static int disk_identify_packet_device_command(int fd,
- void *buf,
- size_t buf_len)
+static int disk_identify_packet_device_command(int fd,
+ void *buf,
+ size_t buf_len)
{
- struct sg_io_v4 io_v4;
- uint8_t cdb[16];
- uint8_t sense[32];
- uint8_t *desc = sense+8;
- int ret;
-
- /*
- * ATA Pass-Through 16 byte command, as described in
- *
- * T10 04-262r8 ATA Command Pass-Through
- *
- * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
- */
- memset(cdb, 0, sizeof(cdb));
- cdb[0] = 0x85; /* OPERATION CODE: 16 byte pass through */
- cdb[1] = 4 << 1; /* PROTOCOL: PIO Data-in */
- cdb[2] = 0x2e; /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
- cdb[3] = 0; /* FEATURES */
- cdb[4] = 0; /* FEATURES */
- cdb[5] = 0; /* SECTORS */
- cdb[6] = 1; /* SECTORS */
- cdb[7] = 0; /* LBA LOW */
- cdb[8] = 0; /* LBA LOW */
- cdb[9] = 0; /* LBA MID */
- cdb[10] = 0; /* LBA MID */
- cdb[11] = 0; /* LBA HIGH */
- cdb[12] = 0; /* LBA HIGH */
- cdb[13] = 0; /* DEVICE */
- cdb[14] = 0xA1; /* Command: ATA IDENTIFY PACKET DEVICE */;
- cdb[15] = 0; /* CONTROL */
- memset(sense, 0, sizeof(sense));
-
- 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 (cdb);
- io_v4.request = (uintptr_t) cdb;
- io_v4.max_response_len = sizeof (sense);
- io_v4.response = (uintptr_t) sense;
- io_v4.din_xfer_len = buf_len;
- io_v4.din_xferp = (uintptr_t) buf;
- io_v4.timeout = COMMAND_TIMEOUT_MSEC;
-
- ret = ioctl(fd, SG_IO, &io_v4);
- if (ret != 0) {
- /* could be that the driver doesn't do version 4, try version 3 */
- if (errno == EINVAL) {
- struct sg_io_hdr io_hdr;
-
- memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
- io_hdr.interface_id = 'S';
- io_hdr.cmdp = (unsigned char*) cdb;
- io_hdr.cmd_len = sizeof (cdb);
- io_hdr.dxferp = buf;
- io_hdr.dxfer_len = buf_len;
- io_hdr.sbp = sense;
- io_hdr.mx_sb_len = sizeof (sense);
- io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
- io_hdr.timeout = COMMAND_TIMEOUT_MSEC;
-
- ret = ioctl(fd, SG_IO, &io_hdr);
- if (ret != 0)
- goto out;
- } else {
- goto out;
- }
- }
-
- if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
- errno = EIO;
- ret = -1;
- goto out;
- }
+ struct sg_io_v4 io_v4;
+ uint8_t cdb[16];
+ uint8_t sense[32];
+ uint8_t *desc = sense+8;
+ int ret;
+
+ /*
+ * ATA Pass-Through 16 byte command, as described in
+ *
+ * T10 04-262r8 ATA Command Pass-Through
+ *
+ * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
+ */
+ memset(cdb, 0, sizeof(cdb));
+ cdb[0] = 0x85; /* OPERATION CODE: 16 byte pass through */
+ cdb[1] = 4 << 1; /* PROTOCOL: PIO Data-in */
+ cdb[2] = 0x2e; /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
+ cdb[3] = 0; /* FEATURES */
+ cdb[4] = 0; /* FEATURES */
+ cdb[5] = 0; /* SECTORS */
+ cdb[6] = 1; /* SECTORS */
+ cdb[7] = 0; /* LBA LOW */
+ cdb[8] = 0; /* LBA LOW */
+ cdb[9] = 0; /* LBA MID */
+ cdb[10] = 0; /* LBA MID */
+ cdb[11] = 0; /* LBA HIGH */
+ cdb[12] = 0; /* LBA HIGH */
+ cdb[13] = 0; /* DEVICE */
+ cdb[14] = 0xA1; /* Command: ATA IDENTIFY PACKET DEVICE */;
+ cdb[15] = 0; /* CONTROL */
+ memset(sense, 0, sizeof(sense));
+
+ 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 (cdb);
+ io_v4.request = (uintptr_t) cdb;
+ io_v4.max_response_len = sizeof (sense);
+ io_v4.response = (uintptr_t) sense;
+ io_v4.din_xfer_len = buf_len;
+ io_v4.din_xferp = (uintptr_t) buf;
+ io_v4.timeout = COMMAND_TIMEOUT_MSEC;
+
+ ret = ioctl(fd, SG_IO, &io_v4);
+ if (ret != 0) {
+ /* could be that the driver doesn't do version 4, try version 3 */
+ if (errno == EINVAL) {
+ struct sg_io_hdr io_hdr;
+
+ memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
+ io_hdr.interface_id = 'S';
+ io_hdr.cmdp = (unsigned char*) cdb;
+ io_hdr.cmd_len = sizeof (cdb);
+ io_hdr.dxferp = buf;
+ io_hdr.dxfer_len = buf_len;
+ io_hdr.sbp = sense;
+ io_hdr.mx_sb_len = sizeof (sense);
+ io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
+ io_hdr.timeout = COMMAND_TIMEOUT_MSEC;
+
+ ret = ioctl(fd, SG_IO, &io_hdr);
+ if (ret != 0)
+ goto out;
+ } else {
+ goto out;
+ }
+ }
+
+ if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
+ errno = EIO;
+ ret = -1;
+ goto out;
+ }
out:
- return ret;
+ return ret;
}
/**
* Copies the ATA string from @identify located at @offset_words into @dest.
*/
static void disk_identify_get_string (uint8_t identify[512],
- unsigned int offset_words,
- char *dest,
- size_t dest_len)
+ unsigned int offset_words,
+ char *dest,
+ size_t dest_len)
{
- unsigned int c1;
- unsigned int c2;
-
- assert (identify != NULL);
- assert (dest != NULL);
- assert ((dest_len & 1) == 0);
-
- while (dest_len > 0) {
- c1 = ((uint16_t *) identify)[offset_words] >> 8;
- c2 = ((uint16_t *) identify)[offset_words] & 0xff;
- *dest = c1;
- dest++;
- *dest = c2;
- dest++;
- offset_words++;
- dest_len -= 2;
- }
+ unsigned int c1;
+ unsigned int c2;
+
+ assert (identify != NULL);
+ assert (dest != NULL);
+ assert ((dest_len & 1) == 0);
+
+ while (dest_len > 0) {
+ c1 = ((uint16_t *) identify)[offset_words] >> 8;
+ c2 = ((uint16_t *) identify)[offset_words] & 0xff;
+ *dest = c1;
+ dest++;
+ *dest = c2;
+ dest++;
+ offset_words++;
+ dest_len -= 2;
+ }
}
static void disk_identify_fixup_string (uint8_t identify[512],
- unsigned int offset_words,
- size_t len)
+ unsigned int offset_words,
+ size_t len)
{
- disk_identify_get_string(identify, offset_words,
- (char *) identify + offset_words * 2, len);
+ disk_identify_get_string(identify, offset_words,
+ (char *) identify + offset_words * 2, len);
}
static void disk_identify_fixup_uint16 (uint8_t identify[512], unsigned int offset_words)
{
- uint16_t *p;
+ uint16_t *p;
- p = (uint16_t *) identify;
- p[offset_words] = le16toh (p[offset_words]);
+ p = (uint16_t *) identify;
+ p[offset_words] = le16toh (p[offset_words]);
}
/**
* non-zero with errno set.
*/
static int disk_identify (struct udev *udev,
- int fd,
- uint8_t out_identify[512],
- int *out_is_packet_device)
+ int fd,
+ uint8_t out_identify[512],
+ int *out_is_packet_device)
{
- int ret;
- uint8_t inquiry_buf[36];
- int peripheral_device_type;
- int all_nul_bytes;
- int n;
- int is_packet_device;
-
- assert (out_identify != NULL);
-
- /* init results */
- ret = -1;
- memset (out_identify, '\0', 512);
- is_packet_device = 0;
-
- /* If we were to use ATA PASS_THROUGH (12) on an ATAPI device
- * we could accidentally blank media. This is because MMC's BLANK
- * command has the same op-code (0x61).
- *
- * To prevent this from happening we bail out if the device
- * isn't a Direct Access Block Device, e.g. SCSI type 0x00
- * (CD/DVD devices are type 0x05). So we send a SCSI INQUIRY
- * command first... libata is handling this via its SCSI
- * emulation layer.
- *
- * This also ensures that we're actually dealing with a device
- * that understands SCSI commands.
- *
- * (Yes, it is a bit perverse that we're tunneling the ATA
- * command through SCSI and relying on the ATA driver
- * emulating SCSI well-enough...)
- *
- * (See commit 160b069c25690bfb0c785994c7c3710289179107 for
- * the original bug-fix and see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556635
- * for the original bug-report.)
- */
- ret = disk_scsi_inquiry_command (fd, inquiry_buf, sizeof (inquiry_buf));
- if (ret != 0)
- goto out;
-
- /* SPC-4, section 6.4.2: Standard INQUIRY data */
- peripheral_device_type = inquiry_buf[0] & 0x1f;
- if (peripheral_device_type == 0x05)
- {
- is_packet_device = 1;
- ret = disk_identify_packet_device_command(fd, out_identify, 512);
- goto check_nul_bytes;
- }
- if (peripheral_device_type != 0x00) {
- ret = -1;
- errno = EIO;
- goto out;
- }
-
- /* OK, now issue the IDENTIFY DEVICE command */
- ret = disk_identify_command(fd, out_identify, 512);
- if (ret != 0)
- goto out;
+ int ret;
+ uint8_t inquiry_buf[36];
+ int peripheral_device_type;
+ int all_nul_bytes;
+ int n;
+ int is_packet_device;
+
+ assert (out_identify != NULL);
+
+ /* init results */
+ ret = -1;
+ memset (out_identify, '\0', 512);
+ is_packet_device = 0;
+
+ /* If we were to use ATA PASS_THROUGH (12) on an ATAPI device
+ * we could accidentally blank media. This is because MMC's BLANK
+ * command has the same op-code (0x61).
+ *
+ * To prevent this from happening we bail out if the device
+ * isn't a Direct Access Block Device, e.g. SCSI type 0x00
+ * (CD/DVD devices are type 0x05). So we send a SCSI INQUIRY
+ * command first... libata is handling this via its SCSI
+ * emulation layer.
+ *
+ * This also ensures that we're actually dealing with a device
+ * that understands SCSI commands.
+ *
+ * (Yes, it is a bit perverse that we're tunneling the ATA
+ * command through SCSI and relying on the ATA driver
+ * emulating SCSI well-enough...)
+ *
+ * (See commit 160b069c25690bfb0c785994c7c3710289179107 for
+ * the original bug-fix and see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556635
+ * for the original bug-report.)
+ */
+ ret = disk_scsi_inquiry_command (fd, inquiry_buf, sizeof (inquiry_buf));
+ if (ret != 0)
+ goto out;
+
+ /* SPC-4, section 6.4.2: Standard INQUIRY data */
+ peripheral_device_type = inquiry_buf[0] & 0x1f;
+ if (peripheral_device_type == 0x05)
+ {
+ is_packet_device = 1;
+ ret = disk_identify_packet_device_command(fd, out_identify, 512);
+ goto check_nul_bytes;
+ }
+ if (peripheral_device_type != 0x00) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* OK, now issue the IDENTIFY DEVICE command */
+ ret = disk_identify_command(fd, out_identify, 512);
+ if (ret != 0)
+ goto out;
check_nul_bytes:
- /* Check if IDENTIFY data is all NUL bytes - if so, bail */
- all_nul_bytes = 1;
- for (n = 0; n < 512; n++) {
- if (out_identify[n] != '\0') {
- all_nul_bytes = 0;
- break;
- }
- }
-
- if (all_nul_bytes) {
- ret = -1;
- errno = EIO;
- goto out;
- }
+ /* Check if IDENTIFY data is all NUL bytes - if so, bail */
+ all_nul_bytes = 1;
+ for (n = 0; n < 512; n++) {
+ if (out_identify[n] != '\0') {
+ all_nul_bytes = 0;
+ break;
+ }
+ }
+
+ if (all_nul_bytes) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
out:
- if (out_is_packet_device != NULL)
- *out_is_packet_device = is_packet_device;
- return ret;
+ if (out_is_packet_device != NULL)
+ *out_is_packet_device = is_packet_device;
+ return ret;
}
static void log_fn(struct udev *udev, int priority,
- const char *file, int line, const char *fn,
- const char *format, va_list args)
+ const char *file, int line, const char *fn,
+ const char *format, va_list args)
{
- vsyslog(priority, format, args);
+ vsyslog(priority, format, args);
}
int main(int argc, char *argv[])
{
- struct udev *udev;
- struct hd_driveid id;
- uint8_t identify[512];
- uint16_t *identify_words;
- char model[41];
- char model_enc[256];
- char serial[21];
- char revision[9];
- const char *node = NULL;
- int export = 0;
- int fd;
- uint16_t word;
- int rc = 0;
- int is_packet_device = 0;
- static const struct option options[] = {
- { "export", no_argument, NULL, 'x' },
- { "help", no_argument, NULL, 'h' },
- {}
- };
-
- udev = udev_new();
- if (udev == NULL)
- goto exit;
-
- udev_log_init("ata_id");
- udev_set_log_fn(udev, log_fn);
-
- while (1) {
- int option;
-
- option = getopt_long(argc, argv, "xh", options, NULL);
- if (option == -1)
- break;
-
- switch (option) {
- case 'x':
- export = 1;
- break;
- case 'h':
- printf("Usage: ata_id [--export] [--help] <device>\n"
- " --export print values as environment keys\n"
- " --help print this help text\n\n");
- goto exit;
- }
- }
-
- node = argv[optind];
- if (node == NULL) {
- err(udev, "no node specified\n");
- rc = 1;
- goto exit;
- }
-
- fd = open(node, O_RDONLY|O_NONBLOCK);
- if (fd < 0) {
- err(udev, "unable to open '%s'\n", node);
- rc = 1;
- goto exit;
- }
-
- if (disk_identify(udev, fd, identify, &is_packet_device) == 0) {
- /*
- * fix up only the fields from the IDENTIFY data that we are going to
- * use and copy it into the hd_driveid struct for convenience
- */
- disk_identify_fixup_string (identify, 10, 20); /* serial */
- disk_identify_fixup_string (identify, 23, 6); /* fwrev */
- disk_identify_fixup_string (identify, 27, 40); /* model */
- disk_identify_fixup_uint16 (identify, 0); /* configuration */
- disk_identify_fixup_uint16 (identify, 75); /* queue depth */
- disk_identify_fixup_uint16 (identify, 75); /* SATA capabilities */
- disk_identify_fixup_uint16 (identify, 82); /* command set supported */
- disk_identify_fixup_uint16 (identify, 83); /* command set supported */
- disk_identify_fixup_uint16 (identify, 84); /* command set supported */
- disk_identify_fixup_uint16 (identify, 85); /* command set supported */
- disk_identify_fixup_uint16 (identify, 86); /* command set supported */
- disk_identify_fixup_uint16 (identify, 87); /* command set supported */
- disk_identify_fixup_uint16 (identify, 89); /* time required for SECURITY ERASE UNIT */
- disk_identify_fixup_uint16 (identify, 90); /* time required for enhanced SECURITY ERASE UNIT */
- disk_identify_fixup_uint16 (identify, 91); /* current APM values */
- disk_identify_fixup_uint16 (identify, 94); /* current AAM value */
- disk_identify_fixup_uint16 (identify, 128); /* device lock function */
- disk_identify_fixup_uint16 (identify, 217); /* nominal media rotation rate */
- memcpy(&id, identify, sizeof id);
- } else {
- /* If this fails, then try HDIO_GET_IDENTITY */
- if (ioctl(fd, HDIO_GET_IDENTITY, &id) != 0) {
- if (errno == ENOTTY) {
- info(udev, "HDIO_GET_IDENTITY unsupported for '%s'\n", node);
- rc = 2;
- } else {
- err(udev, "HDIO_GET_IDENTITY failed for '%s': %m\n", node);
- rc = 3;
- }
- goto close;
- }
- }
- identify_words = (uint16_t *) identify;
-
- memcpy (model, id.model, 40);
- model[40] = '\0';
- udev_util_encode_string(model, model_enc, sizeof(model_enc));
- util_replace_whitespace((char *) id.model, model, 40);
- util_replace_chars(model, NULL);
- util_replace_whitespace((char *) id.serial_no, serial, 20);
- util_replace_chars(serial, NULL);
- util_replace_whitespace((char *) id.fw_rev, revision, 8);
- util_replace_chars(revision, NULL);
-
- if (export) {
- /* Set this to convey the disk speaks the ATA protocol */
- printf("ID_ATA=1\n");
-
- if ((id.config >> 8) & 0x80) {
- /* This is an ATAPI device */
- switch ((id.config >> 8) & 0x1f) {
- case 0:
- printf("ID_TYPE=cd\n");
- break;
- case 1:
- printf("ID_TYPE=tape\n");
- break;
- case 5:
- printf("ID_TYPE=cd\n");
- break;
- case 7:
- printf("ID_TYPE=optical\n");
- break;
- default:
- printf("ID_TYPE=generic\n");
- break;
- }
- } else {
- printf("ID_TYPE=disk\n");
- }
- printf("ID_BUS=ata\n");
- printf("ID_MODEL=%s\n", model);
- printf("ID_MODEL_ENC=%s\n", model_enc);
- printf("ID_REVISION=%s\n", revision);
- if (serial[0] != '\0') {
- printf("ID_SERIAL=%s_%s\n", model, serial);
- printf("ID_SERIAL_SHORT=%s\n", serial);
- } else {
- printf("ID_SERIAL=%s\n", model);
- }
-
- if (id.command_set_1 & (1<<5)) {
- printf ("ID_ATA_WRITE_CACHE=1\n");
- printf ("ID_ATA_WRITE_CACHE_ENABLED=%d\n", (id.cfs_enable_1 & (1<<5)) ? 1 : 0);
- }
- if (id.command_set_1 & (1<<10)) {
- printf("ID_ATA_FEATURE_SET_HPA=1\n");
- printf("ID_ATA_FEATURE_SET_HPA_ENABLED=%d\n", (id.cfs_enable_1 & (1<<10)) ? 1 : 0);
-
- /*
- * TODO: use the READ NATIVE MAX ADDRESS command to get the native max address
- * so it is easy to check whether the protected area is in use.
- */
- }
- if (id.command_set_1 & (1<<3)) {
- printf("ID_ATA_FEATURE_SET_PM=1\n");
- printf("ID_ATA_FEATURE_SET_PM_ENABLED=%d\n", (id.cfs_enable_1 & (1<<3)) ? 1 : 0);
- }
- if (id.command_set_1 & (1<<1)) {
- printf("ID_ATA_FEATURE_SET_SECURITY=1\n");
- printf("ID_ATA_FEATURE_SET_SECURITY_ENABLED=%d\n", (id.cfs_enable_1 & (1<<1)) ? 1 : 0);
- printf("ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=%d\n", id.trseuc * 2);
- if ((id.cfs_enable_1 & (1<<1))) /* enabled */ {
- if (id.dlf & (1<<8))
- printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=maximum\n");
- else
- printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=high\n");
- }
- if (id.dlf & (1<<5))
- printf("ID_ATA_FEATURE_SET_SECURITY_ENHANCED_ERASE_UNIT_MIN=%d\n", id.trsEuc * 2);
- if (id.dlf & (1<<4))
- printf("ID_ATA_FEATURE_SET_SECURITY_EXPIRE=1\n");
- if (id.dlf & (1<<3))
- printf("ID_ATA_FEATURE_SET_SECURITY_FROZEN=1\n");
- if (id.dlf & (1<<2))
- printf("ID_ATA_FEATURE_SET_SECURITY_LOCKED=1\n");
- }
- if (id.command_set_1 & (1<<0)) {
- printf("ID_ATA_FEATURE_SET_SMART=1\n");
- printf("ID_ATA_FEATURE_SET_SMART_ENABLED=%d\n", (id.cfs_enable_1 & (1<<0)) ? 1 : 0);
- }
- if (id.command_set_2 & (1<<9)) {
- printf("ID_ATA_FEATURE_SET_AAM=1\n");
- printf("ID_ATA_FEATURE_SET_AAM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<9)) ? 1 : 0);
- printf("ID_ATA_FEATURE_SET_AAM_VENDOR_RECOMMENDED_VALUE=%d\n", id.acoustic >> 8);
- printf("ID_ATA_FEATURE_SET_AAM_CURRENT_VALUE=%d\n", id.acoustic & 0xff);
- }
- if (id.command_set_2 & (1<<5)) {
- printf("ID_ATA_FEATURE_SET_PUIS=1\n");
- printf("ID_ATA_FEATURE_SET_PUIS_ENABLED=%d\n", (id.cfs_enable_2 & (1<<5)) ? 1 : 0);
- }
- if (id.command_set_2 & (1<<3)) {
- printf("ID_ATA_FEATURE_SET_APM=1\n");
- printf("ID_ATA_FEATURE_SET_APM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<3)) ? 1 : 0);
- if ((id.cfs_enable_2 & (1<<3)))
- printf("ID_ATA_FEATURE_SET_APM_CURRENT_VALUE=%d\n", id.CurAPMvalues & 0xff);
- }
- if (id.command_set_2 & (1<<0))
- printf("ID_ATA_DOWNLOAD_MICROCODE=1\n");
-
- /*
- * Word 76 indicates the capabilities of a SATA device. A PATA device shall set
- * word 76 to 0000h or FFFFh. If word 76 is set to 0000h or FFFFh, then
- * the device does not claim compliance with the Serial ATA specification and words
- * 76 through 79 are not valid and shall be ignored.
- */
- word = *((uint16_t *) identify + 76);
- if (word != 0x0000 && word != 0xffff) {
- printf("ID_ATA_SATA=1\n");
- /*
- * If bit 2 of word 76 is set to one, then the device supports the Gen2
- * signaling rate of 3.0 Gb/s (see SATA 2.6).
- *
- * If bit 1 of word 76 is set to one, then the device supports the Gen1
- * signaling rate of 1.5 Gb/s (see SATA 2.6).
- */
- if (word & (1<<2))
- printf("ID_ATA_SATA_SIGNAL_RATE_GEN2=1\n");
- if (word & (1<<1))
- printf("ID_ATA_SATA_SIGNAL_RATE_GEN1=1\n");
- }
-
- /* Word 217 indicates the nominal media rotation rate of the device */
- word = *((uint16_t *) identify + 217);
- if (word != 0x0000) {
- if (word == 0x0001) {
- printf ("ID_ATA_ROTATION_RATE_RPM=0\n"); /* non-rotating e.g. SSD */
- } else if (word >= 0x0401 && word <= 0xfffe) {
- printf ("ID_ATA_ROTATION_RATE_RPM=%d\n", word);
- }
- }
-
- /*
- * Words 108-111 contain a mandatory World Wide Name (WWN) in the NAA IEEE Registered identifier
- * format. Word 108 bits (15:12) shall contain 5h, indicating that the naming authority is IEEE.
- * All other values are reserved.
- */
- word = *((uint16_t *) identify + 108);
- if ((word & 0xf000) == 0x5000) {
- uint64_t wwwn;
-
- wwwn = *((uint16_t *) identify + 108);
- wwwn <<= 16;
- wwwn |= *((uint16_t *) identify + 109);
- wwwn <<= 16;
- wwwn |= *((uint16_t *) identify + 110);
- wwwn <<= 16;
- wwwn |= *((uint16_t *) identify + 111);
- printf("ID_WWN=0x%llx\n", (unsigned long long int) wwwn);
- /* ATA devices have no vendor extension */
- printf("ID_WWN_WITH_EXTENSION=0x%llx\n", (unsigned long long int) wwwn);
- }
-
- /* from Linux's include/linux/ata.h */
- if (identify_words[0] == 0x848a || identify_words[0] == 0x844a) {
- printf("ID_ATA_CFA=1\n");
- } else {
- if ((identify_words[83] & 0xc004) == 0x4004) {
- printf("ID_ATA_CFA=1\n");
- }
- }
- } else {
- if (serial[0] != '\0')
- printf("%s_%s\n", model, serial);
- else
- printf("%s\n", model);
- }
+ struct udev *udev;
+ struct hd_driveid id;
+ uint8_t identify[512];
+ uint16_t *identify_words;
+ char model[41];
+ char model_enc[256];
+ char serial[21];
+ char revision[9];
+ const char *node = NULL;
+ int export = 0;
+ int fd;
+ uint16_t word;
+ int rc = 0;
+ int is_packet_device = 0;
+ static const struct option options[] = {
+ { "export", no_argument, NULL, 'x' },
+ { "help", no_argument, NULL, 'h' },
+ {}
+ };
+
+ udev = udev_new();
+ if (udev == NULL)
+ goto exit;
+
+ udev_log_init("ata_id");
+ udev_set_log_fn(udev, log_fn);
+
+ while (1) {
+ int option;
+
+ option = getopt_long(argc, argv, "xh", options, NULL);
+ if (option == -1)
+ break;
+
+ switch (option) {
+ case 'x':
+ export = 1;
+ break;
+ case 'h':
+ printf("Usage: ata_id [--export] [--help] <device>\n"
+ " --export print values as environment keys\n"
+ " --help print this help text\n\n");
+ goto exit;
+ }
+ }
+
+ node = argv[optind];
+ if (node == NULL) {
+ err(udev, "no node specified\n");
+ rc = 1;
+ goto exit;
+ }
+
+ fd = open(node, O_RDONLY|O_NONBLOCK);
+ if (fd < 0) {
+ err(udev, "unable to open '%s'\n", node);
+ rc = 1;
+ goto exit;
+ }
+
+ if (disk_identify(udev, fd, identify, &is_packet_device) == 0) {
+ /*
+ * fix up only the fields from the IDENTIFY data that we are going to
+ * use and copy it into the hd_driveid struct for convenience
+ */
+ disk_identify_fixup_string (identify, 10, 20); /* serial */
+ disk_identify_fixup_string (identify, 23, 6); /* fwrev */
+ disk_identify_fixup_string (identify, 27, 40); /* model */
+ disk_identify_fixup_uint16 (identify, 0); /* configuration */
+ disk_identify_fixup_uint16 (identify, 75); /* queue depth */
+ disk_identify_fixup_uint16 (identify, 75); /* SATA capabilities */
+ disk_identify_fixup_uint16 (identify, 82); /* command set supported */
+ disk_identify_fixup_uint16 (identify, 83); /* command set supported */
+ disk_identify_fixup_uint16 (identify, 84); /* command set supported */
+ disk_identify_fixup_uint16 (identify, 85); /* command set supported */
+ disk_identify_fixup_uint16 (identify, 86); /* command set supported */
+ disk_identify_fixup_uint16 (identify, 87); /* command set supported */
+ disk_identify_fixup_uint16 (identify, 89); /* time required for SECURITY ERASE UNIT */
+ disk_identify_fixup_uint16 (identify, 90); /* time required for enhanced SECURITY ERASE UNIT */
+ disk_identify_fixup_uint16 (identify, 91); /* current APM values */
+ disk_identify_fixup_uint16 (identify, 94); /* current AAM value */
+ disk_identify_fixup_uint16 (identify, 128); /* device lock function */
+ disk_identify_fixup_uint16 (identify, 217); /* nominal media rotation rate */
+ memcpy(&id, identify, sizeof id);
+ } else {
+ /* If this fails, then try HDIO_GET_IDENTITY */
+ if (ioctl(fd, HDIO_GET_IDENTITY, &id) != 0) {
+ if (errno == ENOTTY) {
+ info(udev, "HDIO_GET_IDENTITY unsupported for '%s'\n", node);
+ rc = 2;
+ } else {
+ err(udev, "HDIO_GET_IDENTITY failed for '%s': %m\n", node);
+ rc = 3;
+ }
+ goto close;
+ }
+ }
+ identify_words = (uint16_t *) identify;
+
+ memcpy (model, id.model, 40);
+ model[40] = '\0';
+ udev_util_encode_string(model, model_enc, sizeof(model_enc));
+ util_replace_whitespace((char *) id.model, model, 40);
+ util_replace_chars(model, NULL);
+ util_replace_whitespace((char *) id.serial_no, serial, 20);
+ util_replace_chars(serial, NULL);
+ util_replace_whitespace((char *) id.fw_rev, revision, 8);
+ util_replace_chars(revision, NULL);
+
+ if (export) {
+ /* Set this to convey the disk speaks the ATA protocol */
+ printf("ID_ATA=1\n");
+
+ if ((id.config >> 8) & 0x80) {
+ /* This is an ATAPI device */
+ switch ((id.config >> 8) & 0x1f) {
+ case 0:
+ printf("ID_TYPE=cd\n");
+ break;
+ case 1:
+ printf("ID_TYPE=tape\n");
+ break;
+ case 5:
+ printf("ID_TYPE=cd\n");
+ break;
+ case 7:
+ printf("ID_TYPE=optical\n");
+ break;
+ default:
+ printf("ID_TYPE=generic\n");
+ break;
+ }
+ } else {
+ printf("ID_TYPE=disk\n");
+ }
+ printf("ID_BUS=ata\n");
+ printf("ID_MODEL=%s\n", model);
+ printf("ID_MODEL_ENC=%s\n", model_enc);
+ printf("ID_REVISION=%s\n", revision);
+ if (serial[0] != '\0') {
+ printf("ID_SERIAL=%s_%s\n", model, serial);
+ printf("ID_SERIAL_SHORT=%s\n", serial);
+ } else {
+ printf("ID_SERIAL=%s\n", model);
+ }
+
+ if (id.command_set_1 & (1<<5)) {
+ printf ("ID_ATA_WRITE_CACHE=1\n");
+ printf ("ID_ATA_WRITE_CACHE_ENABLED=%d\n", (id.cfs_enable_1 & (1<<5)) ? 1 : 0);
+ }
+ if (id.command_set_1 & (1<<10)) {
+ printf("ID_ATA_FEATURE_SET_HPA=1\n");
+ printf("ID_ATA_FEATURE_SET_HPA_ENABLED=%d\n", (id.cfs_enable_1 & (1<<10)) ? 1 : 0);
+
+ /*
+ * TODO: use the READ NATIVE MAX ADDRESS command to get the native max address
+ * so it is easy to check whether the protected area is in use.
+ */
+ }
+ if (id.command_set_1 & (1<<3)) {
+ printf("ID_ATA_FEATURE_SET_PM=1\n");
+ printf("ID_ATA_FEATURE_SET_PM_ENABLED=%d\n", (id.cfs_enable_1 & (1<<3)) ? 1 : 0);
+ }
+ if (id.command_set_1 & (1<<1)) {
+ printf("ID_ATA_FEATURE_SET_SECURITY=1\n");
+ printf("ID_ATA_FEATURE_SET_SECURITY_ENABLED=%d\n", (id.cfs_enable_1 & (1<<1)) ? 1 : 0);
+ printf("ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=%d\n", id.trseuc * 2);
+ if ((id.cfs_enable_1 & (1<<1))) /* enabled */ {
+ if (id.dlf & (1<<8))
+ printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=maximum\n");
+ else
+ printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=high\n");
+ }
+ if (id.dlf & (1<<5))
+ printf("ID_ATA_FEATURE_SET_SECURITY_ENHANCED_ERASE_UNIT_MIN=%d\n", id.trsEuc * 2);
+ if (id.dlf & (1<<4))
+ printf("ID_ATA_FEATURE_SET_SECURITY_EXPIRE=1\n");
+ if (id.dlf & (1<<3))
+ printf("ID_ATA_FEATURE_SET_SECURITY_FROZEN=1\n");
+ if (id.dlf & (1<<2))
+ printf("ID_ATA_FEATURE_SET_SECURITY_LOCKED=1\n");
+ }
+ if (id.command_set_1 & (1<<0)) {
+ printf("ID_ATA_FEATURE_SET_SMART=1\n");
+ printf("ID_ATA_FEATURE_SET_SMART_ENABLED=%d\n", (id.cfs_enable_1 & (1<<0)) ? 1 : 0);
+ }
+ if (id.command_set_2 & (1<<9)) {
+ printf("ID_ATA_FEATURE_SET_AAM=1\n");
+ printf("ID_ATA_FEATURE_SET_AAM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<9)) ? 1 : 0);
+ printf("ID_ATA_FEATURE_SET_AAM_VENDOR_RECOMMENDED_VALUE=%d\n", id.acoustic >> 8);
+ printf("ID_ATA_FEATURE_SET_AAM_CURRENT_VALUE=%d\n", id.acoustic & 0xff);
+ }
+ if (id.command_set_2 & (1<<5)) {
+ printf("ID_ATA_FEATURE_SET_PUIS=1\n");
+ printf("ID_ATA_FEATURE_SET_PUIS_ENABLED=%d\n", (id.cfs_enable_2 & (1<<5)) ? 1 : 0);
+ }
+ if (id.command_set_2 & (1<<3)) {
+ printf("ID_ATA_FEATURE_SET_APM=1\n");
+ printf("ID_ATA_FEATURE_SET_APM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<3)) ? 1 : 0);
+ if ((id.cfs_enable_2 & (1<<3)))
+ printf("ID_ATA_FEATURE_SET_APM_CURRENT_VALUE=%d\n", id.CurAPMvalues & 0xff);
+ }
+ if (id.command_set_2 & (1<<0))
+ printf("ID_ATA_DOWNLOAD_MICROCODE=1\n");
+
+ /*
+ * Word 76 indicates the capabilities of a SATA device. A PATA device shall set
+ * word 76 to 0000h or FFFFh. If word 76 is set to 0000h or FFFFh, then
+ * the device does not claim compliance with the Serial ATA specification and words
+ * 76 through 79 are not valid and shall be ignored.
+ */
+ word = *((uint16_t *) identify + 76);
+ if (word != 0x0000 && word != 0xffff) {
+ printf("ID_ATA_SATA=1\n");
+ /*
+ * If bit 2 of word 76 is set to one, then the device supports the Gen2
+ * signaling rate of 3.0 Gb/s (see SATA 2.6).
+ *
+ * If bit 1 of word 76 is set to one, then the device supports the Gen1
+ * signaling rate of 1.5 Gb/s (see SATA 2.6).
+ */
+ if (word & (1<<2))
+ printf("ID_ATA_SATA_SIGNAL_RATE_GEN2=1\n");
+ if (word & (1<<1))
+ printf("ID_ATA_SATA_SIGNAL_RATE_GEN1=1\n");
+ }
+
+ /* Word 217 indicates the nominal media rotation rate of the device */
+ word = *((uint16_t *) identify + 217);
+ if (word != 0x0000) {
+ if (word == 0x0001) {
+ printf ("ID_ATA_ROTATION_RATE_RPM=0\n"); /* non-rotating e.g. SSD */
+ } else if (word >= 0x0401 && word <= 0xfffe) {
+ printf ("ID_ATA_ROTATION_RATE_RPM=%d\n", word);
+ }
+ }
+
+ /*
+ * Words 108-111 contain a mandatory World Wide Name (WWN) in the NAA IEEE Registered identifier
+ * format. Word 108 bits (15:12) shall contain 5h, indicating that the naming authority is IEEE.
+ * All other values are reserved.
+ */
+ word = *((uint16_t *) identify + 108);
+ if ((word & 0xf000) == 0x5000) {
+ uint64_t wwwn;
+
+ wwwn = *((uint16_t *) identify + 108);
+ wwwn <<= 16;
+ wwwn |= *((uint16_t *) identify + 109);
+ wwwn <<= 16;
+ wwwn |= *((uint16_t *) identify + 110);
+ wwwn <<= 16;
+ wwwn |= *((uint16_t *) identify + 111);
+ printf("ID_WWN=0x%llx\n", (unsigned long long int) wwwn);
+ /* ATA devices have no vendor extension */
+ printf("ID_WWN_WITH_EXTENSION=0x%llx\n", (unsigned long long int) wwwn);
+ }
+
+ /* from Linux's include/linux/ata.h */
+ if (identify_words[0] == 0x848a || identify_words[0] == 0x844a) {
+ printf("ID_ATA_CFA=1\n");
+ } else {
+ if ((identify_words[83] & 0xc004) == 0x4004) {
+ printf("ID_ATA_CFA=1\n");
+ }
+ }
+ } else {
+ if (serial[0] != '\0')
+ printf("%s_%s\n", model, serial);
+ else
+ printf("%s\n", model);
+ }
close:
- close(fd);
+ close(fd);
exit:
- udev_unref(udev);
- udev_log_close();
- return rc;
+ udev_unref(udev);
+ udev_log_close();
+ return rc;
}
~ianmdlvl / elogind.git / blobdiff