[Pkg-sssd-devel] Bug#995730: libnss-sss: sssd protocol is not stable; libnss-sss and so on need stricter dependencies

[Sam Morris]

Package: libnss-sss
Version: 2.5.2-3
Severity: normal

I upgraded sssd today, and found that netgroup lookups no longer worked.

See <https://github.com/SSSD/sssd/issues/5805> for the details. The
underlying reason was that I had not upgraded libnss-sss, and the older
libnss_sss.so.2 was unable to understand messages from the newer sssd.

Can stricter dependencies be used to make sure that libnss-sss (and
probably libpam-sss and libsss-sudo) are upgraded in lockstep with sssd?

For libnss-sss this is a bit tricky since it only Recommends sssd; and
sssd-common only Recommends libnss-sss. Maybe Breaks can be used?

OTOH, libnss-sss (and libpam-sss and libsss-sudo) don't seem very useful
without sssd, so maybe they could be change to Depend on it by exact
version. Or even be rolled into the sssd package?

-- System Information:
Debian Release: 11.0
  APT prefers stable-updates
  APT policy: (550, 'stable-updates'), (550, 'stable'), (530, 'testing'), (520, 'unstable'), (500, 'stable-security'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-8-amd64 (SMP w/2 CPU threads)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libnss-sss depends on:
ii  libc6  2.32-4

Versions of packages libnss-sss recommends:
ii  sssd  2.5.2-3

libnss-sss suggests no packages.

-- no debconf information