1 // SPDX-License-Identifier: CDDL-1.0
10  * or https://opensource.org/licenses/CDDL-1.0.
46 #define	DEV_BYID_PATH	"/dev/disk/by-id/"
49 udev_device_get_devid(struct udev_device *dev, char *bufptr, size_t buflen)  in udev_device_get_devid()  argument
55 	/* The bus based by-id path is preferred */  in udev_device_get_devid()
56 	bus = udev_device_get_property_value(dev, "ID_BUS");  in udev_device_get_devid()
62 		 * For multipath nodes use the persistent uuid based identifier  in udev_device_get_devid()
64 		 * Example: 'dm-uuid-mpath-35000c5006304de3f'  in udev_device_get_devid()
66 		dm_uuid = udev_device_get_property_value(dev, "DM_UUID");  in udev_device_get_devid()
68 			(void) snprintf(bufptr, buflen, "dm-uuid-%s", dm_uuid);  in udev_device_get_devid()
75 	 * locate the bus specific by-id link  in udev_device_get_devid()
77 	 * Example: 'scsi-MG03SCA300_350000494a8cb3d67-part1'  in udev_device_get_devid()
79 	(void) snprintf(devbyid, sizeof (devbyid), "%s%s-", DEV_BYID_PATH, bus);  in udev_device_get_devid()
80 	entry = udev_device_get_devlinks_list_entry(dev);  in udev_device_get_devid()
87 			(void) stpncpy(bufptr, name, buflen - 1);  in udev_device_get_devid()
88 			bufptr[buflen - 1] = '\0';  in udev_device_get_devid()
101  * # ./devname2devid /dev/sda1
102  * devid scsi-350000394a8caede4-part1
104  * # ./devname2devid /dev/dm-1
105  * devid: 'dm-uuid-mpath-35000c5006304de3f'
111  *	0 - means success
112  *	1 - means failure
119 	struct udev_device *dev = NULL;  in main()  local
142 	if ((dev = udev_device_new_from_subsystem_sysname(udev, "block",  in main()
148 	if ((ret = udev_device_get_devid(dev, devid, sizeof (devid))) != 0) {  in main()
149 		udev_device_unref(dev);  in main()
157 	udev_device_unref(dev);  in main()