fwupd/plugins/scsi/fu-scsi-device.c
Richard Hughes a3efbe51f6 scsi: Add a simple plugin to enumerate SCSI hardware
We might want this to tag insecure or broken SAS drives, cough.
2022-02-24 17:21:51 +00:00

140 lines
4.1 KiB
C

/*
* Copyright (C) 2022 Richard Hughes <richard@hughsie.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include "config.h"
#include "fu-scsi-device.h"
struct _FuScsiDevice {
FuUdevDevice parent_instance;
};
G_DEFINE_TYPE(FuScsiDevice, fu_scsi_device, FU_TYPE_UDEV_DEVICE)
static gboolean
fu_scsi_device_probe(FuDevice *device, GError **error)
{
const gchar *name;
const gchar *vendor;
const gchar *version;
g_autofree gchar *name_safe = NULL;
g_autofree gchar *subsystem = NULL;
g_autofree gchar *vendor_safe = NULL;
g_autofree gchar *version_safe = NULL;
g_autoptr(GPtrArray) block_devs = NULL;
/* ignore */
if (g_strcmp0(fu_udev_device_get_devtype(FU_UDEV_DEVICE(device)), "scsi_target") == 0) {
g_set_error_literal(error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_SUPPORTED,
"targets are not supported");
return FALSE;
}
/* vendor */
vendor = fu_udev_device_get_sysfs_attr(FU_UDEV_DEVICE(device), "vendor", NULL);
vendor_safe = fu_common_instance_id_strsafe(vendor);
if (vendor_safe == NULL || g_strcmp0(vendor_safe, "ATA") == 0) {
g_set_error_literal(error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_SUPPORTED,
"no assigned vendor");
return FALSE;
}
fu_device_set_vendor(device, vendor);
/* name */
name = fu_udev_device_get_sysfs_attr(FU_UDEV_DEVICE(device), "model", NULL);
name_safe = fu_common_instance_id_strsafe(name);
if (name_safe == NULL) {
g_set_error_literal(error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_SUPPORTED,
"no assigned name");
return FALSE;
}
fu_device_set_name(device, name);
/* version */
version = fu_udev_device_get_sysfs_attr(FU_UDEV_DEVICE(device), "rev", NULL);
version_safe = fu_common_instance_id_strsafe(version);
if (version_safe == NULL) {
g_set_error_literal(error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_SUPPORTED,
"no assigned version");
return FALSE;
}
fu_device_set_version(device, version);
/* add GUIDs */
subsystem = g_utf8_strup(fu_udev_device_get_subsystem(FU_UDEV_DEVICE(device)), -1);
if (subsystem != NULL && vendor_safe != NULL && name_safe != NULL && version_safe != NULL) {
g_autofree gchar *devid = NULL;
devid = g_strdup_printf("%s\\VEN_%s&DEV_%s&REV_%s",
subsystem,
vendor_safe,
name_safe,
version_safe);
fu_device_add_instance_id(device, devid);
}
if (subsystem != NULL && vendor_safe != NULL && name_safe != NULL) {
g_autofree gchar *devid = NULL;
devid = g_strdup_printf("%s\\VEN_%s&DEV_%s", subsystem, vendor_safe, name_safe);
fu_device_add_instance_id(device, devid);
}
if (subsystem != NULL && vendor_safe != NULL) {
g_autofree gchar *devid = NULL;
devid = g_strdup_printf("%s\\VEN_%s", subsystem, vendor_safe);
fu_device_add_instance_id_full(device, devid, FU_DEVICE_INSTANCE_FLAG_ONLY_QUIRKS);
}
if (vendor_safe != NULL) {
g_autofree gchar *vendor_id = NULL;
vendor_id = g_strdup_printf("SCSI:%s", vendor_safe);
fu_device_add_vendor_id(device, vendor_id);
}
/* check all block devices, although there should only be one */
block_devs = fu_udev_device_get_children_with_subsystem(FU_UDEV_DEVICE(device), "block");
for (guint i = 0; i < block_devs->len; i++) {
FuUdevDevice *block_dev = g_ptr_array_index(block_devs, i);
guint64 value = 0;
if (!fu_udev_device_get_sysfs_attr_uint64(block_dev, "removable", &value, NULL))
continue;
if (value == 0x0) {
fu_device_add_flag(device, FWUPD_DEVICE_FLAG_INTERNAL);
break;
}
}
/* set the physical ID */
return fu_udev_device_set_physical_id(FU_UDEV_DEVICE(device), "scsi", error);
}
static void
fu_scsi_device_init(FuScsiDevice *self)
{
fu_device_add_icon(FU_DEVICE(self), "drive-harddisk");
fu_device_set_version_format(FU_DEVICE(self), FWUPD_VERSION_FORMAT_PLAIN);
fu_device_set_summary(FU_DEVICE(self), "SCSI device");
}
static void
fu_scsi_device_finalize(GObject *object)
{
G_OBJECT_CLASS(fu_scsi_device_parent_class)->finalize(object);
}
static void
fu_scsi_device_class_init(FuScsiDeviceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS(klass);
FuDeviceClass *klass_device = FU_DEVICE_CLASS(klass);
object_class->finalize = fu_scsi_device_finalize;
klass_device->probe = fu_scsi_device_probe;
}