#!/bin/sh

set -e

case "$1" in
    configure)
	# creating tss group if he isn't already there
	if ! getent group tss >/dev/null; then
            addgroup --system tss
	fi

	# creating tss user if he isn't already there
	if ! getent passwd tss >/dev/null; then
            adduser --system --ingroup tss --shell /bin/false \
                    --home /var/lib/tpm --no-create-home \
                    --gecos "TPM software stack" \
                    tss
	fi

	# Setting owner
	if [ -d /var/lib/tpm ] && getent passwd tss >/dev/null; then
	    chown tss:tss /var/lib/tpm
	fi

	# ask udev to check for new udev rules (and fix device permissions)
	if udevadm --version > /dev/null; then
	    udevadm control --reload-rules ||:
	    udevadm trigger --sysname-match="tpm[0-9]*" ||:
	    udevadm trigger --action=add --subsystem-match=tpm ||:
	    udevadm trigger --action=add --subsystem-match=tpmrm ||:
	fi
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac