lvm2/lib/device/dev-ext-udev-constants.h

/*
 * Copyright (C) 2015 Red Hat, Inc. All rights reserved.
 *
 * This file is part of LVM2.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License v.2.1.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/*************************************************************************
 * Properties saved in udev db and accesible via libudev and used by LVM *
 *************************************************************************/

/*
 * DEV_EXT_UDEV_BLKID_TYPE property with various DEV_EXT_UDEV_BLKID_TYPE_*
 * values that is saved in udev db via blkid call in udev rules
 */
#define DEV_EXT_UDEV_BLKID_TYPE                 "ID_FS_TYPE"
/*
 * mpath_member is forced by multipath - it's set in udev db via
 * multipath call overwriting any existing ID_FS_TYPE value for
 * a device which is a multipath component which prevents incorrect
 * claim of the device by any other block device subsystem
 */
#define DEV_EXT_UDEV_BLKID_TYPE_MPATH           "mpath_member"
/* FW RAIDs are all *_raid_member types except linux_raid_member which denotes SW RAID */
#define DEV_EXT_UDEV_BLKID_TYPE_RAID_SUFFIX     "_raid_member"
#define DEV_EXT_UDEV_BLKID_TYPE_SW_RAID         "linux_raid_member"
#define DEV_EXT_UDEV_BLKID_PART_TABLE_TYPE      "ID_PART_TABLE_TYPE"

#define DEV_EXT_UDEV_DEVTYPE			"DEVTYPE"
#define DEV_EXT_UDEV_DEVTYPE_DISK		"disk"

/* the list of symlinks associated with device node */
#define DEV_EXT_UDEV_DEVLINKS			"DEVLINKS"

/*
 * DEV_EXT_UDEV_MPATH_DEVICE_PATH is set by multipath in udev db
 * with value either 0 or 1. The same functionality as
 * DEV_EXT_UDEV_BLKID_TYPE_MPATH actually, but introduced later
 * for some reason.
 */
#define DEV_EXT_UDEV_MPATH_DEVICE_PATH          "DM_MULTIPATH_DEVICE_PATH"


/***********************************************************
 * Sysfs attributes accessible via libudev and used by LVM *
 ***********************************************************/

/* the value of size sysfs attribute is size in bytes */
#define DEV_EXT_UDEV_SYSFS_ATTR_SIZE            "size"
cleanup: add dev-ext-udev-constants.h with constants/names of the properties/values used from udev db 2015-01-29 18:44:34 +03:00			`/*`
			`* Copyright (C) 2015 Red Hat, Inc. All rights reserved.`
			`*`
			`* This file is part of LVM2.`
			`*`
			`* This copyrighted material is made available to anyone wishing to use,`
			`* modify, copy, or redistribute it subject to the terms and conditions`
			`* of the GNU Lesser General Public License v.2.1.`
			`*`
			`* You should have received a copy of the GNU Lesser General Public License`
			`* along with this program; if not, write to the Free Software Foundation,`
doc: change fsf address Hmm rpmlint suggest fsf is using a different address these days, so lets keep it up-to-date 2016-01-21 13:49:46 +03:00			`* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA`
cleanup: add dev-ext-udev-constants.h with constants/names of the properties/values used from udev db 2015-01-29 18:44:34 +03:00			`*/`

			`/*************************************************************************`
			`* Properties saved in udev db and accesible via libudev and used by LVM *`
			`*************************************************************************/`

			`/*`
			`* DEV_EXT_UDEV_BLKID_TYPE property with various DEV_EXT_UDEV_BLKID_TYPE_*`
			`* values that is saved in udev db via blkid call in udev rules`
			`*/`
			`#define DEV_EXT_UDEV_BLKID_TYPE "ID_FS_TYPE"`
			`/*`
			`* mpath_member is forced by multipath - it's set in udev db via`
			`* multipath call overwriting any existing ID_FS_TYPE value for`
			`* a device which is a multipath component which prevents incorrect`
			`* claim of the device by any other block device subsystem`
			`*/`
			`#define DEV_EXT_UDEV_BLKID_TYPE_MPATH "mpath_member"`
			`/* FW RAIDs are all _raid_member types except linux_raid_member which denotes SW RAID /`
			`#define DEV_EXT_UDEV_BLKID_TYPE_RAID_SUFFIX "_raid_member"`
			`#define DEV_EXT_UDEV_BLKID_TYPE_SW_RAID "linux_raid_member"`
			`#define DEV_EXT_UDEV_BLKID_PART_TABLE_TYPE "ID_PART_TABLE_TYPE"`
filters: partitioned: fix partition table filter with external_device_info_source="udev" and blkid<2.20 Non-dm devices have ID_PART_TABLE_TYPE variable exported in udev db from blkid scan for both whole devices and partitions. We used ID_PART_ENTRY_DISK in addition to decide whether this is the whole device or partition and then we filtered out only whole devices where the partition table really is. However, ID_PART_ENTRY_DISK was added in blkid 2.20 so we need to use a different set of variables to decide on whole devices and partitions on systems where older blkid is still used. Now, we use ID_PART_TABLE_TYPE to detect that there's something related to partitioning with this device and we use DEVTYPE variable instead to decide between whole device (DEVTYPE="disk") and partition (DEVTYPE="partition"). For dm devices it's simpler, we have ID_PART_TABLE_TYPE variable\ set in udev db for whole devices. It's not set for partitions, hence we don't need more variable in addition to make the decision on whole device vs. partition (dm devices do not have regular partitions, hence DEVTYPE can't be used anyway, it's always set to "disk" for whole disks and partitions). 2016-02-02 15:28:11 +03:00
			`#define DEV_EXT_UDEV_DEVTYPE "DEVTYPE"`
			`#define DEV_EXT_UDEV_DEVTYPE_DISK "disk"`
cleanup: add dev-ext-udev-constants.h with constants/names of the properties/values used from udev db 2015-01-29 18:44:34 +03:00
dev-type: check for DEVLINKS udev db variable existence if udev_device_get_is_initialized fn is not present Older udev versions (udev < v165), don't have the official udev_device_get_is_initialized function available to query for device initialization state in udev database. Also, devices don't have USEC_INITIALIZED udev db variable set - this is bound to the udev_device_get_is_initialized fn functionality. In this case, check for "DEVLINKS" variable instead - all block devices have at least one symlink set for the node (the "/dev/block/<major:minor>". This symlink is set by default basic udev rules provided by udev directly. We'll use this as an alternative for the check that initial udev processing for a device has already finished. 2016-09-06 14:12:02 +03:00			`/* the list of symlinks associated with device node */`
			`#define DEV_EXT_UDEV_DEVLINKS "DEVLINKS"`

cleanup: add dev-ext-udev-constants.h with constants/names of the properties/values used from udev db 2015-01-29 18:44:34 +03:00			`/*`
			`* DEV_EXT_UDEV_MPATH_DEVICE_PATH is set by multipath in udev db`
			`* with value either 0 or 1. The same functionality as`
			`* DEV_EXT_UDEV_BLKID_TYPE_MPATH actually, but introduced later`
			`* for some reason.`
			`*/`
			`#define DEV_EXT_UDEV_MPATH_DEVICE_PATH "DM_MULTIPATH_DEVICE_PATH"`


			`/***********************************************************`
			`* Sysfs attributes accessible via libudev and used by LVM *`
			`***********************************************************/`

			`/* the value of size sysfs attribute is size in bytes */`
			`#define DEV_EXT_UDEV_SYSFS_ATTR_SIZE "size"`