.deb/.rpm: various fixes related to non-root
* Explicitly chown /var/lib/osmocom to osmocom:osmocom, instead of
relying on systemd to do it when the service starts up. This does not
work with the systemd versions in debian 10 and almalinux 8.
* deb: Use "useradd" instead of the interactive "adduser" perl script
from Debian. This makes it consistent with how we do it in rpm, and
avoids the dependency on "adduser".
* deb: Consistently use tabs through the file, instead of mixing tabs
and spaces.
* deb: Remove support for the "dpkg-statoverride --list" logic. This
seems to be a rather obscure feature to override permissions for
certain files or directories, for which it does not seem to be a good
idea to make the postinst script less maintainable. Something similar
can be achieved by using your own Osmocom config file in a different
path with different permissions.
Related: OS#4107
Change-Id: I406ff0d625b02991d580c8382aa4be04dba45a00
diff --git a/debian/postinst b/debian/postinst
index 866c31a..80821c4 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -1,37 +1,28 @@
#!/bin/sh -e
-# Create 'osmocom' user and group (if it doesn't exist yet) and adjust permissions
-# of directories which are not automatically adjusted by systemd from previous (root-owned)
-# install.
-
-# N. B: the user is intentionally NOT removed during package uninstall:
-# see https://wiki.debian.org/AccountHandlingInMaintainerScripts for reasoning.
-chperms() {
- # chperms <user> <group> <perms> <file>
- if ! OVERRIDE=`dpkg-statoverride --list $4 2>&1`; then
- if [ -e $4 ]; then
- chown $1:$2 $4
- chmod $3 $4
- fi
- fi
-}
-
case "$1" in
- configure)
- if ! getent passwd osmocom > /dev/null; then
- adduser --quiet \
- --system \
- --group \
- --no-create-home \
- --disabled-password \
- --home /var/lib/osmocom \
- --gecos "Open Source Mobile Communications" \
- osmocom
- fi
-# Set permissions according to https://www.debian.org/doc/debian-policy/ch-files.html#s-permissions-owners
- chperms osmocom osmocom 0660 /etc/osmocom/osmo-msc.cfg
- chperms root osmocom 2775 /etc/osmocom
+ configure)
+ # Create the osmocom group and user (if it doesn't exist yet)
+ if ! getent group osmocom >/dev/null; then
+ groupadd --system osmocom
+ fi
+ if ! getent passwd osmocom >/dev/null; then
+ useradd \
+ --system \
+ --gid osmocom \
+ --home-dir /var/lib/osmocom \
+ --shell /sbin/nologin \
+ --comment "Open Source Mobile Communications" \
+ osmocom
+ fi
- ;;
+ # Fix permissions of previous (root-owned) install (OS#4107)
+ chown osmocom:osmocom /etc/osmocom/osmo-msc.cfg
+ chmod 0660 /etc/osmocom/osmo-msc.cfg
+ chown root:osmocom /etc/osmocom
+ chmod 2775 /etc/osmocom
+ mkdir -p /var/lib/osmocom
+ chown -R osmocom:osmocom /var/lib/osmocom
+ ;;
esac
# dh_installdeb(1) will replace this with shell code automatically