"""
Cryptsetup - combine metadata about LUKS devices
================================================
Combine outputs of LuksDump and LuksMeta parsers (with the same UUID) into a
single dictionary.
"""
import copy
from insights import SkipComponent
from insights.core.plugins import combiner
from insights.parsers.cryptsetup_luksDump import LuksDump
from insights.parsers.luksmeta import LuksMeta
[docs]
@combiner(LuksDump, optional=[LuksMeta])
class LuksDevices(list):
"""
Combiner for LUKS encrypted devices information. It uses the results of
the ``LuksDump`` and ``LuksMeta`` parser (they are matched based UUID of
the device they were collected from).
Examples:
>>> luks_devices[0]["header"]["Version"]
'1'
>>> "luksmeta" in luks_devices[0]
True
>>> "luksmeta" in luks_devices[1]
False
>>> luks_devices[0]["luksmeta"][0]
Keyslot on index 0 is 'active' with no embedded metadata
"""
def __init__(self, luks_dumps, luks_metas):
luksmeta_by_uuid = {}
if luks_metas:
for luks_meta in luks_metas:
if "device_uuid" not in luks_meta:
continue
luksmeta_by_uuid[luks_meta["device_uuid"].lower()] = luks_meta
for luks_dump in luks_dumps:
uuid = luks_dump.dump["header"]["UUID"].lower()
luks_dump_copy = copy.deepcopy(luks_dump.dump)
if luks_metas and uuid in luksmeta_by_uuid:
luks_dump_copy["luksmeta"] = luksmeta_by_uuid[uuid]
self.append(luks_dump_copy)
if not self:
raise SkipComponent