/*
* ata_id - reads product/serial number from ATA drives
*
- * Copyright (C) 2005-2008 Kay Sievers <kay.sievers@vrfy.org>
+ * 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>
*
void *buf,
size_t buf_len)
{
- struct sg_io_v4 io_v4;
- uint8_t cdb[6];
- uint8_t sense[32];
+ 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;
- /*
- * 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;
+ 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)
- goto out;
+ 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;
- ret = -1;
- goto out;
+ return -1;
}
- } else {
- goto out;
- }
+ } else
+ return ret;
}
/* even if the ioctl succeeds, we need to check the return value */
io_v4.transport_status == 0 &&
io_v4.driver_status == 0)) {
errno = EIO;
- ret = -1;
- goto out;
+ return -1;
}
- out:
- return ret;
+ return 0;
}
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;
+ 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;
- /*
- * 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;
+ 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)
- goto out;
- } else {
- goto out;
- }
+ return ret;
+ } else
+ return ret;
}
if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
errno = EIO;
- ret = -1;
- goto out;
+ return -1;
}
- out:
- return ret;
+ return 0;
}
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;
+ 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;
- /*
- * 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;
+ 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)
- goto out;
- } else {
- goto out;
- }
+ return ret;
+ } else
+ return ret;
}
if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
errno = EIO;
- ret = -1;
- goto out;
+ return -1;
}
- out:
- return ret;
+ return 0;
}
/**
* 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;
+ int is_packet_device = 0;
/* init results */
- memset(out_identify, '\0', 512);
- is_packet_device = 0;
+ 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
out:
if (out_is_packet_device != NULL)
- *out_is_packet_device = is_packet_device;
+ *out_is_packet_device = is_packet_device;
return ret;
}
~ianmdlvl / elogind.git / blobdiff