| /* |
| * ata_id - reads product/serial number from ATA drives |
| * |
| * Copyright (C) 2005-2008 Kay Sievers <kay@vrfy.org> |
| * Copyright (C) 2009 Lennart Poettering <lennart@poettering.net> |
| * Copyright (C) 2009-2010 David Zeuthen <zeuthen@gmail.com> |
| * |
| * This program is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stdint.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <ctype.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <getopt.h> |
| #include <scsi/scsi.h> |
| #include <scsi/sg.h> |
| #include <scsi/scsi_ioctl.h> |
| #include <sys/ioctl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <linux/hdreg.h> |
| #include <linux/bsg.h> |
| |
| #include "libudev.h" |
| #include "libudev-private.h" |
| #include "udev-util.h" |
| #include "log.h" |
| |
| #define COMMAND_TIMEOUT_MSEC (30 * 1000) |
| |
| static int disk_scsi_inquiry_command(int fd, |
| void *buf, |
| size_t buf_len) |
| { |
| uint8_t cdb[6] = { |
| /* |
| * INQUIRY, see SPC-4 section 6.4 |
| */ |
| [0] = 0x12, /* OPERATION CODE: INQUIRY */ |
| [3] = (buf_len >> 8), /* ALLOCATION LENGTH */ |
| [4] = (buf_len & 0xff), |
| }; |
| uint8_t sense[32] = {}; |
| struct sg_io_v4 io_v4 = { |
| .guard = 'Q', |
| .protocol = BSG_PROTOCOL_SCSI, |
| .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD, |
| .request_len = sizeof(cdb), |
| .request = (uintptr_t) cdb, |
| .max_response_len = sizeof(sense), |
| .response = (uintptr_t) sense, |
| .din_xfer_len = buf_len, |
| .din_xferp = (uintptr_t) buf, |
| .timeout = COMMAND_TIMEOUT_MSEC, |
| }; |
| int ret; |
| |
| 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 = { |
| .interface_id = 'S', |
| .cmdp = (unsigned char*) cdb, |
| .cmd_len = sizeof (cdb), |
| .dxferp = buf, |
| .dxfer_len = buf_len, |
| .sbp = sense, |
| .mx_sb_len = sizeof(sense), |
| .dxfer_direction = SG_DXFER_FROM_DEV, |
| .timeout = COMMAND_TIMEOUT_MSEC, |
| }; |
| |
| ret = ioctl(fd, SG_IO, &io_hdr); |
| if (ret != 0) |
| return ret; |
| |
| /* 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; |
| return -1; |
| } |
| } else |
| return ret; |
| } |
| |
| /* 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; |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static int disk_identify_command(int fd, |
| void *buf, |
| size_t buf_len) |
| { |
| uint8_t cdb[12] = { |
| /* |
| * 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 |
| */ |
| [0] = 0xa1, /* OPERATION CODE: 12 byte pass through */ |
| [1] = 4 << 1, /* PROTOCOL: PIO Data-in */ |
| [2] = 0x2e, /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */ |
| [3] = 0, /* FEATURES */ |
| [4] = 1, /* SECTORS */ |
| [5] = 0, /* LBA LOW */ |
| [6] = 0, /* LBA MID */ |
| [7] = 0, /* LBA HIGH */ |
| [8] = 0 & 0x4F, /* SELECT */ |
| [9] = 0xEC, /* Command: ATA IDENTIFY DEVICE */ |
| }; |
| uint8_t sense[32] = {}; |
| uint8_t *desc = sense + 8; |
| struct sg_io_v4 io_v4 = { |
| .guard = 'Q', |
| .protocol = BSG_PROTOCOL_SCSI, |
| .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD, |
| .request_len = sizeof(cdb), |
| .request = (uintptr_t) cdb, |
| .max_response_len = sizeof(sense), |
| .response = (uintptr_t) sense, |
| .din_xfer_len = buf_len, |
| .din_xferp = (uintptr_t) buf, |
| .timeout = COMMAND_TIMEOUT_MSEC, |
| }; |
| int ret; |
| |
| 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 = { |
| .interface_id = 'S', |
| .cmdp = (unsigned char*) cdb, |
| .cmd_len = sizeof (cdb), |
| .dxferp = buf, |
| .dxfer_len = buf_len, |
| .sbp = sense, |
| .mx_sb_len = sizeof (sense), |
| .dxfer_direction = SG_DXFER_FROM_DEV, |
| .timeout = COMMAND_TIMEOUT_MSEC, |
| }; |
| |
| ret = ioctl(fd, SG_IO, &io_hdr); |
| if (ret != 0) |
| return ret; |
| } else |
| return ret; |
| } |
| |
| if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) { |
| errno = EIO; |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static int disk_identify_packet_device_command(int fd, |
| void *buf, |
| size_t buf_len) |
| { |
| uint8_t cdb[16] = { |
| /* |
| * 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 |
| */ |
| [0] = 0x85, /* OPERATION CODE: 16 byte pass through */ |
| [1] = 4 << 1, /* PROTOCOL: PIO Data-in */ |
| [2] = 0x2e, /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */ |
| [3] = 0, /* FEATURES */ |
| [4] = 0, /* FEATURES */ |
| [5] = 0, /* SECTORS */ |
| [6] = 1, /* SECTORS */ |
| [7] = 0, /* LBA LOW */ |
| [8] = 0, /* LBA LOW */ |
| [9] = 0, /* LBA MID */ |
| [10] = 0, /* LBA MID */ |
| [11] = 0, /* LBA HIGH */ |
| [12] = 0, /* LBA HIGH */ |
| [13] = 0, /* DEVICE */ |
| [14] = 0xA1, /* Command: ATA IDENTIFY PACKET DEVICE */ |
| [15] = 0, /* CONTROL */ |
| }; |
| uint8_t sense[32] = {}; |
| uint8_t *desc = sense + 8; |
| struct sg_io_v4 io_v4 = { |
| .guard = 'Q', |
| .protocol = BSG_PROTOCOL_SCSI, |
| .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD, |
| .request_len = sizeof (cdb), |
| .request = (uintptr_t) cdb, |
| .max_response_len = sizeof (sense), |
| .response = (uintptr_t) sense, |
| .din_xfer_len = buf_len, |
| .din_xferp = (uintptr_t) buf, |
| .timeout = COMMAND_TIMEOUT_MSEC, |
| }; |
| int ret; |
| |
| 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 = { |
| .interface_id = 'S', |
| .cmdp = (unsigned char*) cdb, |
| .cmd_len = sizeof (cdb), |
| .dxferp = buf, |
| .dxfer_len = buf_len, |
| .sbp = sense, |
| .mx_sb_len = sizeof (sense), |
| .dxfer_direction = SG_DXFER_FROM_DEV, |
| .timeout = COMMAND_TIMEOUT_MSEC, |
| }; |
| |
| ret = ioctl(fd, SG_IO, &io_hdr); |
| if (ret != 0) |
| return ret; |
| } else |
| return ret; |
| } |
| |
| if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) { |
| errno = EIO; |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * disk_identify_get_string: |
| * @identify: A block of IDENTIFY data |
| * @offset_words: Offset of the string to get, in words. |
| * @dest: Destination buffer for the string. |
| * @dest_len: Length of destination buffer, in bytes. |
| * |
| * 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 c1; |
| unsigned int c2; |
| |
| while (dest_len > 0) { |
| c1 = identify[offset_words * 2 + 1]; |
| c2 = identify[offset_words * 2]; |
| *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) |
| { |
| 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; |
| |
| p = (uint16_t *) identify; |
| p[offset_words] = le16toh (p[offset_words]); |
| } |
| |
| /** |
| * disk_identify: |
| * @udev: The libudev context. |
| * @fd: File descriptor for the block device. |
| * @out_identify: Return location for IDENTIFY data. |
| * @out_is_packet_device: Return location for whether returned data is from a IDENTIFY PACKET DEVICE. |
| * |
| * Sends the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE command to the |
| * device represented by @fd. If successful, then the result will be |
| * copied into @out_identify and @out_is_packet_device. |
| * |
| * This routine is based on code from libatasmart, Copyright 2008 |
| * Lennart Poettering, LGPL v2.1. |
| * |
| * Returns: 0 if the data was successfully obtained, otherwise |
| * 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 ret; |
| uint8_t inquiry_buf[36]; |
| int peripheral_device_type; |
| int all_nul_bytes; |
| int n; |
| int is_packet_device = 0; |
| |
| /* init results */ |
| memzero(out_identify, 512); |
| |
| /* 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; |
| } |
| |
| out: |
| if (out_is_packet_device != NULL) |
| *out_is_packet_device = is_packet_device; |
| return ret; |
| } |
| |
| int main(int argc, char *argv[]) |
| { |
| _cleanup_udev_unref_ struct udev *udev = NULL; |
| struct hd_driveid id; |
| union { |
| uint8_t byte[512]; |
| uint16_t wyde[256]; |
| } identify; |
| char model[41]; |
| char model_enc[256]; |
| char serial[21]; |
| char revision[9]; |
| const char *node = NULL; |
| int export = 0; |
| _cleanup_close_ int fd = -1; |
| uint16_t word; |
| int is_packet_device = 0; |
| static const struct option options[] = { |
| { "export", no_argument, NULL, 'x' }, |
| { "help", no_argument, NULL, 'h' }, |
| {} |
| }; |
| |
| log_parse_environment(); |
| log_open(); |
| |
| udev = udev_new(); |
| if (udev == NULL) |
| return 0; |
| |
| 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" |
| " -x,--export print values as environment keys\n" |
| " -h,--help print this help text\n\n"); |
| return 0; |
| } |
| } |
| |
| node = argv[optind]; |
| if (node == NULL) { |
| log_error("no node specified"); |
| return 1; |
| } |
| |
| fd = open(node, O_RDONLY|O_NONBLOCK|O_CLOEXEC); |
| if (fd < 0) { |
| log_error("unable to open '%s'", node); |
| return 1; |
| } |
| |
| if (disk_identify(udev, fd, identify.byte, &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.byte, 10, 20); /* serial */ |
| disk_identify_fixup_string(identify.byte, 23, 8); /* fwrev */ |
| disk_identify_fixup_string(identify.byte, 27, 40); /* model */ |
| disk_identify_fixup_uint16(identify.byte, 0); /* configuration */ |
| disk_identify_fixup_uint16(identify.byte, 75); /* queue depth */ |
| disk_identify_fixup_uint16(identify.byte, 75); /* SATA capabilities */ |
| disk_identify_fixup_uint16(identify.byte, 82); /* command set supported */ |
| disk_identify_fixup_uint16(identify.byte, 83); /* command set supported */ |
| disk_identify_fixup_uint16(identify.byte, 84); /* command set supported */ |
| disk_identify_fixup_uint16(identify.byte, 85); /* command set supported */ |
| disk_identify_fixup_uint16(identify.byte, 86); /* command set supported */ |
| disk_identify_fixup_uint16(identify.byte, 87); /* command set supported */ |
| disk_identify_fixup_uint16(identify.byte, 89); /* time required for SECURITY ERASE UNIT */ |
| disk_identify_fixup_uint16(identify.byte, 90); /* time required for enhanced SECURITY ERASE UNIT */ |
| disk_identify_fixup_uint16(identify.byte, 91); /* current APM values */ |
| disk_identify_fixup_uint16(identify.byte, 94); /* current AAM value */ |
| disk_identify_fixup_uint16(identify.byte, 128); /* device lock function */ |
| disk_identify_fixup_uint16(identify.byte, 217); /* nominal media rotation rate */ |
| memcpy(&id, identify.byte, sizeof id); |
| } else { |
| /* If this fails, then try HDIO_GET_IDENTITY */ |
| if (ioctl(fd, HDIO_GET_IDENTITY, &id) != 0) { |
| log_debug_errno(errno, "HDIO_GET_IDENTITY failed for '%s': %m", node); |
| return 2; |
| } |
| } |
| |
| 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 = identify.wyde[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 = identify.wyde[217]; |
| 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 = identify.wyde[108]; |
| if ((word & 0xf000) == 0x5000) { |
| uint64_t wwwn; |
| |
| wwwn = identify.wyde[108]; |
| wwwn <<= 16; |
| wwwn |= identify.wyde[109]; |
| wwwn <<= 16; |
| wwwn |= identify.wyde[110]; |
| wwwn <<= 16; |
| wwwn |= identify.wyde[111]; |
| printf("ID_WWN=0x%1$" PRIx64 "\n" |
| "ID_WWN_WITH_EXTENSION=0x%1$" PRIx64 "\n", |
| wwwn); |
| } |
| |
| /* from Linux's include/linux/ata.h */ |
| if (identify.wyde[0] == 0x848a || |
| identify.wyde[0] == 0x844a || |
| (identify.wyde[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); |
| } |
| |
| return 0; |
| } |