#!/bin/sh -e # Only source /usr/share/debconf/confmodule when not called with 'triggered' # to avoid LP: #618410. if [ "$1" != "triggered" ]; then . /usr/share/debconf/confmodule fi RULES_PATH="/etc/ufw" OLD_USER_PATH="/lib/ufw" USER_PATH="$RULES_PATH" TEMPLATE_PATH="/usr/share/ufw" enable_ufw() { ans="" if [ "$1" = "true" ]; then ans="yes" elif [ "$1" = "false" ]; then ans="no" else return 1 fi test -f /etc/ufw/ufw.conf && sed -i "s/^ENABLED=.*/ENABLED=$ans/" /etc/ufw/ufw.conf } allow_port() { ufw allow "$@" >/dev/null || true } allow_service() { service=`echo "$@" | sed 's/#/ /g'` if [ "$service" = "CUPS" ]; then allow_port 631 elif [ "$service" = "DNS" ]; then allow_port 53 elif [ "$service" = "IMAPS" ]; then allow_port 993/tcp elif [ "$service" = "POP3S" ]; then allow_port 995/tcp elif [ "$service" = "SSH" ]; then allow_port 22/tcp elif [ "$service" = "CIFS (Samba)" ]; then allow_port 137/udp allow_port 138/udp allow_port 139/tcp allow_port 445/tcp elif [ "$service" = "SMTP" ]; then allow_port 25/tcp elif [ "$service" = "HTTP" ]; then allow_port 80/tcp elif [ "$service" = "HTTPS" ]; then allow_port 443/tcp fi } # If a primary chain is added to upstream, we should add it on upgrade so # reload works correctly add_primary_chain() { chain="$1" builtin="$2" ver="$3" exe="iptables" if [ "$ver" = "6" ]; then exe="ip6tables" fi if $exe -L "$chain" -n >/dev/null 2>&1 ; then return fi $exe -N "$chain" || true $exe -A "$builtin" -j "$chain" || true } case "$1" in configure) # these files are required, but don't want to change them if # the user modified them for f in before.rules before6.rules after.rules after6.rules do ucf --debconf-ok $TEMPLATE_PATH/iptables/$f $RULES_PATH/$f test -f $RULES_PATH/$f && chmod 640 $RULES_PATH/$f done # migrate user rules on upgrade if [ ! -z "$2" ] && dpkg --compare-versions "$2" lt "0.35~" ; then for f in user.rules user6.rules do mv $OLD_USER_PATH/$f $USER_PATH/$f ln -s $USER_PATH/$f $OLD_USER_PATH/$f done fi for f in user.rules user6.rules do if [ ! -e "$USER_PATH/$f" ]; then # if no config, copy the template cp $TEMPLATE_PATH/iptables/$f $USER_PATH/$f chmod 640 $USER_PATH/$f fi done for f in before.init after.init do if [ ! -e "/etc/ufw/$f" ]; then cp $TEMPLATE_PATH/$f /etc/ufw chmod 640 /etc/ufw/$f fi done if [ ! -e "/etc/ufw/ufw.conf" ]; then cp $TEMPLATE_PATH/ufw.conf /etc/ufw fi # configure ufw with debconf values db_get ufw/enable enabled="$RET" db_fget ufw/existing_configuration seen seen_warning="$RET" if [ "$enabled" = "true" ] && [ "$seen_warning" = "false" ] ; then db_get ufw/allow_known_ports CHOICES="$RET" for service in `echo "$CHOICES" | sed 's/, /\n/g' | sed 's/ /#/g'`; do allow_service "$service" done db_get ufw/allow_custom_ports PORTS="$RET" for port in $PORTS ; do allow_port "$port" done db_fset ufw/existing_configuration seen true fi # need to do this after all 'allow_service' calls, otherwise ufw may # try to use iptables, which breaks the installer enable_ufw "$enabled" # add new primary chains on upgrade if [ "$enabled" = "true" ] && [ ! -z "$2" ] && dpkg --compare-versions "$2" lt "0.34~rc-0ubuntu2" ; then add_primary_chain ufw-track-forward FORWARD add_primary_chain ufw6-track-forward FORWARD 6 fi ;; triggered) ufw app update all || echo "Processing ufw triggers failed. Ignoring." exit 0 ;; abort-upgrade|abort-remove|abort-deconfigure) ;; *) echo "postinst called with unknown argument '$1'" >&2 exit 1 ;; esac # Automatically added by dh_python3 if which py3compile >/dev/null 2>&1; then py3compile -p ufw fi if which pypy3compile >/dev/null 2>&1; then pypy3compile -p ufw || true fi # End automatically added section # Automatically added by dh_installdeb/13.2.1 dpkg-maintscript-helper rm_conffile /etc/init/ufw.conf 0.35-5\~ ufw -- "$@" dpkg-maintscript-helper rm_conffile /etc/bash_completion.d/ufw 0.34-1\~ ufw -- "$@" # End automatically added section # Automatically added by dh_installinit/13.2.1 if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then if [ -x "/etc/init.d/ufw" ]; then update-rc.d ufw defaults >/dev/null || exit 1 fi fi # End automatically added section # Automatically added by dh_installsystemd/13.2.1 if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then # This will only remove masks created by d-s-h on package removal. deb-systemd-helper unmask 'ufw.service' >/dev/null || true # was-enabled defaults to true, so new installations run enable. if deb-systemd-helper --quiet was-enabled 'ufw.service'; then # Enables the unit on first installation, creates new # symlinks on upgrades if the unit file has changed. deb-systemd-helper enable 'ufw.service' >/dev/null || true else # Update the statefile to add new symlinks (if any), which need to be # cleaned up on purge. Also remove old symlinks. deb-systemd-helper update-state 'ufw.service' >/dev/null || true fi fi # End automatically added section