tomb close tc.tomb doesn't close tc.tomb

[stevelitt]

What am I doing wrong?

tomb close tc.tomb

tomb [E] There is no open tomb to be closed.

( Then I successfully opened tc.tomb onto /media/tc )

tomb close -k tc.tomb.key tc.tomb

tomb [E] There is no open tomb to be closed.

ls /dev/mapper

control tomb.tc.1538336392.loop0 tomb.tc.1538337069.loop1

mount | grep loop

/dev/mapper/tomb.tc.1538336392.loop0 on /media/tc type ext4 (rw,nodev,noatime)
/dev/mapper/tomb.tc.1538337069.loop1 on /media/tc type ext4 (rw,nodev,noatime)

OTHER INFO...
Void Linux, up to date as of this morning.

[root@mydesk ~]# uname -a
Linux mydesk 4.18.11_1 #1 SMP PREEMPT Sat Sep 29 11:55:22 UTC 2018 x86_64 GNU/Linux
[root@mydesk ~]#

Sudo version 1.8.25p1
cryptsetup 2.0.4
pinentry-curses (pinentry) 1.1.0
Copyright (C) 2016 g10 Code GmbH
License GPLv2+: GNU GPL version 2 or later https://www.gnu.org/licenses/
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
findmnt from util-linux 2.32.1
gpg (GnuPG) 1.4.23 - key forging algorithms (GnuPG symmetric ciphers):
/usr/bin/gpg
IDEA 3DES CAST5 BLOWFISH AES AES192 AES256 TWOFISH CAMELLIA128 CAMELLIA192 CAMELLIA256

[roddhjav]

Hi, can you try with the following command and provide us with its output:

tomb -D close tc

[stevelitt]

https://pastebin.com/iNUYMnnN

[root@mydesk dovecot]# cat tombclose.txt
tomb [D] Identified caller: root (0:0)
tomb [D] Tomb command: close tc.tomb
tomb [D] Caller: uid[0], gid[0], tty[/dev/pts/4].
tomb [D] Temporary directory: /tmp/zsh
tomb [E] There is no open tomb to be closed.
[root@mydesk dovecot]#

And then...

[root@mydesk dovecot]# ls -ldF /tmp/zsh
drwxrwxrwt 2 root root 40 Sep 30 15:51 /tmp/zsh/
[root@mydesk dovecot]#

[roddhjav]

Ok, it's because tomb close takes as argument the tomb name (tc) and not the tomb path (tc.tomb). So simply do tomb close tc and it should work.

Alternatively, you can also do tomb close or tomb close all to close all the opened tomb. You can also use tomb list to list the opened tomb.

[jaromil]

hi Steve! indeed that should be it. Lets add support for this corner case however, close could detect and strip the .tomb extension passed on command line.

[stevelitt]

Where can I find a tomb mailing list or even better a tomb IRC channel?

[stevelitt]

Thanks for the info. I never would have thought of just using "tc". Thanks!

[jaromil]

There was a list once used, but not anymore (silent since years) for all things crypto at dyne that is https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/crypto
best is anyway IRC channel #dyne on our server irc.dyne.org

[stevelitt]

Thank you for the tomb close -D, tomb close, tomb close tc (in my example) and the tomb list commands. I managed to close the thing with tomb slam (it had said something was still using it). However, there's still left over /dev/mapper/tomb.tc.1538337069.loop1 (the loop 0 one was closed by the tomb commands). How do I get rid of that mapper file? losetup -d /dev/loop1 didn't do it.

Thanks!

[jaromil]

Ack, slam sometimes fails on that. Mapper volumes should be closed by cryptsetup luksClose but when the loopback is missing underneath they may be left hanging.