[pkg-cryptsetup-devel] Bug#902879: cryptdisks_start: fails on non-block-devices, "skipped, device $CRYPTTAB_SOURCE does not exist"

[Steve Cotton]

Package: cryptsetup-run
Version: 2:2.0.3-4
Severity: normal

The latest version of cryptdisks_start seems to have dropped support for
regular files containing the data for an encrypted loopback mount.  With
2:2.0.3 it seems that the scripts' sanity checks will only accept block
devices, and give the error "skipped, device $CRYPTTAB_SOURCE does not exist"
for regular files.

I'd normally do
    # cryptdisks_start user_clientdev_crypt
    # mount /home/clientdev/workspace/

# cryptdisks_start user_clientdev_crypt
[FAIL] Starting crypto disk...user_clientdev_crypt (skipped, device /home/.clientdev_crypt does not exist)...failed.

# file -s /home/.clientdev_crypt 
/home/.clientdev_crypt: LUKS encrypted file, ver 1 [aes, xts-plain64, sha1] UUID: a81e1598-9f69-44be-986a-dde68bdcac54

# ls -l /home/.clientdev_crypt 
-rw-r--r-- 1 root root 536870912000 Jul  2 13:18 /home/.clientdev_crypt

# grep client /etc/crypttab 
user_clientdev_crypt /home/.clientdev_crypt	none	luks,discard,noauto

# grep client /etc/fstab 
/dev/mapper/user_clientdev_crypt /home/clientdev/workspace/	ext4	noauto	0	0

Regards,
Steve

-- Package-specific info:

-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, arm64

Kernel: Linux 4.16.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages cryptsetup-run depends on:
ii  cryptsetup-bin         2:2.0.3-4
ii  debconf [debconf-2.0]  1.5.67
ii  dmsetup                2:1.02.145-4.1
ii  libc6                  2.27-3

cryptsetup-run recommends no packages.

Versions of packages cryptsetup-run suggests:
ii  dosfstools              4.1-2
pn  keyutils                <none>
ii  liblocale-gettext-perl  1.07-3+b3

-- debconf information:
* cryptsetup/prerm_active_mappings: false