systemd/etc/udev/suse/64-device-mapper.rules

# device mapper links hook into "change" events, when the dm table
# becomes available; some table-types must be ignored

KERNEL=="device-mapper", SYMLINK+="mapper/control"

KERNEL!="dm-*", GOTO="device_mapper_end"
ACTION!="add|change", GOTO="device_mapper_end"

# skip snapshot and error tables
IMPORT{program}="/sbin/dmsetup export -j%M -m%m"
ENV{DM_STATE}!="ACTIVE", GOTO="device_mapper_end"
ENV{DM_TARGET_TYPES}=="|*snapshot*|*error*", GOTO="device_mapper_end"

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

IMPORT{program}="vol_id --export $tempnode"
OPTIONS="link_priority=-100"
ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$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}"

LABEL="device_mapper_end"