def _luks_header_backup_restore(self, create_fn):
succ = create_fn(self.loop_dev, PASSWD, None)
self.assertTrue(succ)
backup_file = os.path.join(self.backup_dir, "luks-header.txt")
succ = BlockDev.crypto_luks_header_backup(self.loop_dev, backup_file)
self.assertTrue(succ)
self.assertTrue(os.path.isfile(backup_file))
# now completely destroy the luks header
ret, out, err = run_command("cryptsetup erase %s -q && wipefs -a %s" % (self.loop_dev, self.loop_dev))
if ret != 0:
self.fail("Failed to erase LUKS header from %s:\n%s %s" % (self.loop_dev, out, err))
_ret, fstype, _err = run_command("blkid -p -ovalue -sTYPE %s" % self.loop_dev)
self.assertFalse(fstype) # false == empty
# header is destroyed, should not be possible to open
with self.assertRaises(GLib.GError):
BlockDev.crypto_luks_open(self.loop_dev, "libblockdevTestLUKS", PASSWD, None)
# and restore the header back
succ = BlockDev.crypto_luks_header_restore(self.loop_dev, backup_file)
self.assertTrue(succ)
_ret, fstype, _err = run_command("blkid -p -ovalue -sTYPE %s" % self.loop_dev)
self.assertEqual(fstype, "crypto_LUKS")
# opening should now work
succ = BlockDev.crypto_luks_open(self.loop_dev, "libblockdevTestLUKS", PASSWD)
self.assertTrue(succ)
succ = BlockDev.crypto_luks_close("libblockdevTestLUKS")
self.assertTrue(succ)
def _luks_header_backup_restore(self, create_fn):
succ = create_fn(self.loop_dev, PASSWD, None)
self.assertTrue(succ)
backup_file = os.path.join(self.backup_dir, "luks-header.txt")
succ = BlockDev.crypto_luks_header_backup(self.loop_dev, backup_file)
self.assertTrue(succ)
self.assertTrue(os.path.isfile(backup_file))
# now completely destroy the luks header
ret, out, err = run_command("cryptsetup erase %s -q && wipefs -a %s" %
(self.loop_dev, self.loop_dev))
if ret != 0:
self.fail("Failed to erase LUKS header from %s:\n%s %s" %
(self.loop_dev, out, err))
_ret, fstype, _err = run_command("blkid -p -ovalue -sTYPE %s" %
self.loop_dev)
self.assertFalse(fstype) # false == empty
# header is destroyed, should not be possible to open
with self.assertRaises(GLib.GError):
BlockDev.crypto_luks_open(self.loop_dev, "libblockdevTestLUKS",
PASSWD, None)
# and restore the header back
succ = BlockDev.crypto_luks_header_restore(self.loop_dev, backup_file)
self.assertTrue(succ)
_ret, fstype, _err = run_command("blkid -p -ovalue -sTYPE %s" %
self.loop_dev)
self.assertEqual(fstype, "crypto_LUKS")
# opening should now work
succ = BlockDev.crypto_luks_open(self.loop_dev, "libblockdevTestLUKS",
PASSWD)
self.assertTrue(succ)
succ = BlockDev.crypto_luks_close("libblockdevTestLUKS")
self.assertTrue(succ)
