# Copyright (C) 2009 Red Hat, Inc. All rights reserved.
#
# This file is part of LVM2.

# Udev rules for device-mapper devices.
#
# These rules create symlinks in /dev/disk directory.
# Symlinks that depend on probing filesystem type,
# label and uuid are created only if the device is not
# suspended.

# "add" event is processed on coldplug only!
ACTION!="add|change", GOTO="dm_other"
ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="dm_other"
ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}=="1", GOTO="dm_other"

SYMLINK+="disk/by-id/dm-name-$env{DM_NAME}"
ENV{DM_UUID}=="?*", SYMLINK+="disk/by-id/dm-uuid-$env{DM_UUID}"

ENV{DM_SUSPENDED}=="1", GOTO="dm_other"

IMPORT{program}="$env{DM_SBIN_PATH}/blkid -o udev -p $tempnode"
ENV{DM_UDEV_LOW_PRIORITY_FLAG}=="1", OPTIONS="link_priority=-100"
ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}"
ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_ENC}=="?*", SYMLINK+="disk/by-label/$env{ID_FS_LABEL_ENC}"

# Cutoff all subsequent rules if instructed by a flag.
# This flag should be used in well-founded situations only to prevent
# any problems that could arise when processing this event further by
# foreign rules (various temporary and hidden devices mostly).
LABEL="dm_other"
ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}!="1", GOTO="dm_end"
ENV{DM_COOKIE}=="?*", RUN+="$env{DM_SBIN_PATH}/dmsetup udevcomplete $env{DM_COOKIE}"
OPTIONS+="last_rule"

LABEL="dm_end"