systemd/rules.d/60-persistent-storage-tape.rules

# do not edit this file, it will be overwritten on update

# persistent storage links: /dev/tape/{by-id,by-path}

ACTION=="remove", GOTO="persistent_storage_tape_end"
ENV{UDEV_DISABLE_PERSISTENT_STORAGE_RULES_FLAG}=="1", GOTO="persistent_storage_tape_end"

# type 8 devices are "Medium Changers"
SUBSYSTEM=="scsi_generic", SUBSYSTEMS=="scsi", ATTRS{type}=="8", GOTO="medium_changer_begin"
GOTO="medium_changer_end"

LABEL="medium_changer_begin"

IMPORT{program}="scsi_id --sg-version=3 --export --allowlisted -d $devnode"
ENV{ID_SERIAL}=="?*", SYMLINK+="tape/by-id/scsi-$env{ID_SERIAL} tape/by-id/scsi-$env{ID_SERIAL}-changer"

# iSCSI devices from the same host have all the same ID_SERIAL,
# but additionally a property named ID_SCSI_SERIAL.
ENV{ID_SCSI_SERIAL}=="?*", SYMLINK+="tape/by-id/scsi-$env{ID_SCSI_SERIAL}"

IMPORT{builtin}="path_id"
ENV{ID_PATH}=="?*",                   SYMLINK+="tape/by-path/$env{ID_PATH}-changer"
ENV{ID_PATH_WITH_USB_REVISION}=="?*", SYMLINK+="tape/by-path/$env{ID_PATH_WITH_USB_REVISION}-changer"

LABEL="medium_changer_end"

SUBSYSTEM!="scsi_tape", GOTO="persistent_storage_tape_end"

KERNEL=="st*[0-9]|nst*[0-9]", ATTRS{ieee1394_id}=="?*", ENV{ID_SERIAL}="$attr{ieee1394_id}", ENV{ID_BUS}="ieee1394"
KERNEL=="st*[0-9]|nst*[0-9]", ENV{ID_SERIAL}!="?*", SUBSYSTEMS=="usb", IMPORT{builtin}="usb_id"
KERNEL=="st*[0-9]|nst*[0-9]", ENV{ID_SERIAL}!="?*", SUBSYSTEMS=="scsi", KERNELS=="[0-9]*:*[0-9]", ENV{.BSG_DEV}="$root/bsg/$id"
KERNEL=="st*[0-9]|nst*[0-9]", ENV{ID_SERIAL}!="?*", IMPORT{program}="scsi_id --allowlisted --export --device=$env{.BSG_DEV}", ENV{ID_BUS}="scsi"
KERNEL=="st*[0-9]",  ENV{ID_SERIAL}=="?*",      SYMLINK+="tape/by-id/$env{ID_BUS}-$env{ID_SERIAL}", OPTIONS+="link_priority=10"
KERNEL=="st*[0-9]",  ENV{ID_SCSI_SERIAL}=="?*", SYMLINK+="tape/by-id/$env{ID_BUS}-$env{ID_SCSI_SERIAL}"
KERNEL=="nst*[0-9]", ENV{ID_SERIAL}=="?*",      SYMLINK+="tape/by-id/$env{ID_BUS}-$env{ID_SERIAL}-nst"
KERNEL=="nst*[0-9]", ENV{ID_SCSI_SERIAL}=="?*", SYMLINK+="tape/by-id/$env{ID_BUS}-$env{ID_SCSI_SERIAL}-nst"

# by-path (parent device path)
KERNEL=="st*[0-9]|nst*[0-9]", IMPORT{builtin}="path_id"
KERNEL=="st*[0-9]",  ENV{ID_PATH}=="?*",                   SYMLINK+="tape/by-path/$env{ID_PATH}"
KERNEL=="st*[0-9]",  ENV{ID_PATH_WITH_USB_REVISION}=="?*", SYMLINK+="tape/by-path/$env{ID_PATH_WITH_USB_REVISION}"
KERNEL=="nst*[0-9]", ENV{ID_PATH}=="?*",                   SYMLINK+="tape/by-path/$env{ID_PATH}-nst"
KERNEL=="nst*[0-9]", ENV{ID_PATH_WITH_USB_REVISION}=="?*", SYMLINK+="tape/by-path/$env{ID_PATH_WITH_USB_REVISION}-nst"

LABEL="persistent_storage_tape_end"