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scsi: add support for listing devices on Windows
Change-Id: I963028c6017796152a201791c078f672bf84a40a
+56
utils/scsi/rbscsi.c
+56
utils/scsi/rbscsi.c
···
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struct rb_scsi_devent_t *dev = malloc(sizeof(struct rb_scsi_devent_t));
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dev[0].scsi_path = NULL;
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dev[0].block_path = NULL;
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+
int nr_dev = 0;
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+
/* list logical drives */
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+
DWORD cbStrSize = GetLogicalDriveStringsA(0, NULL);
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+
LPSTR pszDrives = malloc(cbStrSize);
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+
cbStrSize = GetLogicalDriveStringsA(cbStrSize, pszDrives);
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/* drives are separated by a NULL character, the last drive is just a NULL one */
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for(LPSTR pszDriveRoot = pszDrives; *pszDriveRoot != '\0';
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pszDriveRoot += lstrlen(pszDriveRoot) + 1)
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{
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// each drive is of the form "X:\"
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char path[3];
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path[0] = pszDriveRoot[0]; // letter
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path[1] = ':';
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path[2] = 0;
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/* open drive */
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rb_scsi_device_t rdev = rb_scsi_open(path, 0, NULL, NULL);
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+
if(rdev == NULL)
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continue; // ignore device
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// send an INQUIRY device to check it's actually an SCSI device and get information
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uint8_t inquiry_data[36];
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uint8_t cdb[6] = {0x12, 0, 0, 0, sizeof(inquiry_data), 0}; // INQUIRY
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+
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struct rb_scsi_raw_cmd_t raw;
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raw.dir = RB_SCSI_READ;
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raw.cdb_len = sizeof(cdb);
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raw.cdb = cdb;
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raw.buf = inquiry_data;
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raw.buf_len = sizeof(inquiry_data);
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raw.sense_len = 0; // don't bother with SENSE, this command cannot possibly fail for good reasons
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raw.sense = NULL;
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raw.tmo = 5;
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int ret = rb_scsi_raw_xfer(rdev, &raw);
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rb_scsi_close(rdev);
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if(ret != RB_SCSI_OK)
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continue; // ignore device
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+
if(raw.buf_len != (int)sizeof(inquiry_data))
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continue; // ignore device (what kind of device would not return all the INQUIRY data?)
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+
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+
/* fill device details */
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dev = realloc(dev, (2 + nr_dev) * sizeof(struct rb_scsi_devent_t));
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+
dev[nr_dev].scsi_path = strdup(path);
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+
dev[nr_dev].block_path = strdup(path);
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/* fill vendor/model/rev */
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char info[17];
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+
snprintf(info, sizeof(info), "%.8s", inquiry_data + 8);
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dev[nr_dev].vendor = strdup(info);
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snprintf(info, sizeof(info), "%.16s", inquiry_data + 16);
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dev[nr_dev].model = strdup(info);
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snprintf(info, sizeof(info), "%.4s", inquiry_data + 32);
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dev[nr_dev].rev = strdup(info);
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+
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/* sentinel */
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dev[++nr_dev].scsi_path = NULL;
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+
dev[nr_dev].block_path = NULL;
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+
}
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+
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return dev;
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}
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/* other targets */
+2
-2
utils/scsi/rbscsi.h
+2
-2
utils/scsi/rbscsi.h
···
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94
{
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/* device path to the raw SCSI device, typically:
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* - Linux: /dev/sgX
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-
* - Windows: TODO
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+
* - Windows: C:
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* This path can be used directly with scsi_rb_open(), and is guaranteed to
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* be valid. */
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char *scsi_path;
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/* device path to the corresponding block device, if it exists, typically:
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* - Linux: /dev/sdX
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-
* - Windows: TODO
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+
* - Windows: C:
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* If this path is not-NULL, then it can used directly with scsi_rb_open() */
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char *block_path;
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/* various information about the device, can be NULL on error */