435 lines
12 KiB
Bash
435 lines
12 KiB
Bash
#!/bin/bash
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qubes_preset_file="75-qubes-vm.preset"
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###########################
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## Pre-Install functions ##
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###########################
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update_default_user() {
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# Make sure there is a qubes group
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groupadd --force --system --gid 98 qubes
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# Archlinux bash version has a 'bug' when running su -c, /etc/profile is not loaded because bash consider there is no interactive pty when running 'su - user -c' or something like this.
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# See https://bugs.archlinux.org/task/31831
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id -u 'user' >/dev/null 2>&1 || {
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useradd --user-group --create-home --shell /bin/bash user
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}
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usermod -a --groups qubes user
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}
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## arg 1: the new package version
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pre_install() {
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echo "Pre install..."
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update_default_user
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# do this whole %pre thing only when updating for the first time...
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mkdir -p /var/lib/qubes
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# Backup fstab / But use archlinux defaults (cp instead of mv)
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if [ -e /etc/fstab ] ; then
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cp /etc/fstab /var/lib/qubes/fstab.orig
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fi
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# Add qubes core related fstab entries
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echo "xen /proc/xen xenfs defaults 0 0" >> /etc/fstab
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usermod -L root
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usermod -L user
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}
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## arg 1: the new package version
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## arg 2: the old package version
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pre_upgrade() {
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# do something here
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echo "Pre upgrade..."
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update_default_user
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}
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###################
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## Install Hooks ##
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###################
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configure_notification-daemon() {
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# Enable autostart of notification-daemon when installed
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if [ ! -L /etc/xdg/autostart/notification-daemon.desktop ]; then
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ln -s /usr/share/applications/notification-daemon.desktop /etc/xdg/autostart/
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fi
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}
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configure_selinux() {
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# SELinux is not enabled on archlinux
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#echo "--> Disabling SELinux..."
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echo "SELINUX not enabled on archlinux. skipped."
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# sed -e s/^SELINUX=.*$/SELINUX=disabled/ -i /etc/selinux/config
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# setenforce 0 2>/dev/null
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}
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############################
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## Post-Install functions ##
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############################
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update_qubesconfig() {
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# Remove old firmware updates link
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if [ -L /lib/firmware/updates ]; then
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rm -f /lib/firmware/updates
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fi
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# convert /usr/local symlink to a mount point
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if [ -L /usr/local ]; then
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rm -f /usr/local
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mkdir /usr/local
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mount /usr/local || :
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fi
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# Fix fstab update to core-agent-linux 4.0.33
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grep -F -q "/rw/usrlocal" /etc/fstab || sed "/\/rw\/home/a\/rw\/usrlocal \/usr\/local none noauto,bind,defaults 0 0" -i /etc/fstab
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#/usr/lib/qubes/update-proxy-configs
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# Archlinux pacman configuration is handled in update_finalize
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if ! [ -r /etc/dconf/profile/user ]; then
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mkdir -p /etc/dconf/profile
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echo "user-db:user" >> /etc/dconf/profile/user
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echo "system-db:local" >> /etc/dconf/profile/user
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fi
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dconf update &> /dev/null || :
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# Location of files which contains list of protected files
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mkdir -p /etc/qubes/protected-files.d
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# shellcheck source=init/functions
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. /usr/lib/qubes/init/functions
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# qubes-core-vm has been broken for some time - it overrides /etc/hosts; restore original content
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if ! is_protected_file /etc/hosts ; then
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if ! grep -q localhost /etc/hosts; then
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cat <<EOF > /etc/hosts
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127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 $(hostname)
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::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
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EOF
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fi
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fi
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# ensure that hostname resolves to 127.0.0.1 resp. ::1 and that /etc/hosts is
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# in the form expected by qubes-sysinit.sh
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if ! is_protected_file /etc/hostname ; then
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for ip in '127\.0\.0\.1' '::1'; do
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if grep -q "^${ip}\(\s\|$\)" /etc/hosts; then
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sed -i "/^${ip}\s/,+0s/\(\s$(hostname)\)\+\(\s\|$\)/\2/g" /etc/hosts
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sed -i "s/^${ip}\(\s\|$\).*$/\0 $(hostname)/" /etc/hosts
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else
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echo "${ip} $(hostname)" >> /etc/hosts
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fi
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done
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fi
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}
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############################
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## Service Management Functions ##
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############################
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is_static() {
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[ -f "/usr/lib/systemd/system/$1" ] && ! grep -q '^[[].nstall]' "/usr/lib/systemd/system/$1"
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}
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is_masked() {
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if [ ! -L /etc/systemd/system/"$1" ]
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then
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return 1
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fi
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target=$(readlink /etc/systemd/system/"$1" 2>/dev/null) || :
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if [ "$target" = "/dev/null" ]
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then
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return 0
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fi
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return 1
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}
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mask() {
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ln -sf /dev/null /etc/systemd/system/"$1"
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}
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unmask() {
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if ! is_masked "$1"
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then
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return 0
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fi
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rm -f /etc/systemd/system/"$1"
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}
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preset_units() {
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local represet=
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while read -r action unit_name
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do
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if [ "$action" = "#" ] && [ "$unit_name" = "Units below this line will be re-preset on package upgrade" ]
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then
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represet=1
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continue
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fi
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echo "$action $unit_name" | grep -q '^[[:space:]]*[^#;]' || continue
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[[ -n "$action" && -n "$unit_name" ]] || continue
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if [ "$2" = "initial" ] || [ "$represet" = "1" ]
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then
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if [ "$action" = "disable" ] && is_static "$unit_name"
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then
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if ! is_masked "$unit_name"
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then
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# We must effectively mask these units, even if they are static.
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mask "$unit_name"
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fi
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elif [ "$action" = "enable" ] && is_static "$unit_name"
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then
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if is_masked "$unit_name"
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then
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# We masked this static unit before, now we unmask it.
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unmask "$unit_name"
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fi
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systemctl --no-reload preset "$unit_name" >/dev/null 2>&1 || :
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else
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systemctl --no-reload preset "$unit_name" >/dev/null 2>&1 || :
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fi
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fi
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done < "$1"
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}
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restore_units() {
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grep '^[[:space:]]*[^#;]' "$1" | while read -r action unit_name
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do
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if is_static "$unit_name" && is_masked "$unit_name"
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then
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# If the unit had been masked by us, we must unmask it here.
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# Otherwise systemctl preset will fail badly.
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unmask "$unit_name"
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fi
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systemctl --no-reload preset "$unit_name" >/dev/null 2>&1 || :
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done
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}
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configure_systemd() {
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if [ "$1" -eq 1 ]
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then
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preset_units /usr/lib/systemd/system-preset/$qubes_preset_file initial
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changed=true
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else
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preset_units /usr/lib/systemd/system-preset/$qubes_preset_file upgrade
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changed=true
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# Upgrade path - now qubes-iptables is used instead
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for svc in iptables ip6tables
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do
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if [ -f "$svc".service ]
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then
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systemctl --no-reload preset "$svc".service
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changed=true
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fi
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done
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fi
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if [ "$1" -eq 1 ]
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then
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# First install.
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# Set default "runlevel".
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# FIXME: this ought to be done via kernel command line.
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# The fewer deviations of the template from the seed
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# image, the better.
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rm -f /etc/systemd/system/default.target
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ln -s /lib/systemd/system/multi-user.target /etc/systemd/system/default.target
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changed=true
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fi
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# remove old symlinks
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if [ -L /etc/systemd/system/sysinit.target.wants/qubes-random-seed.service ]
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then
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rm -f /etc/systemd/system/sysinit.target.wants/qubes-random-seed.service
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changed=true
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fi
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if [ -L /etc/systemd/system/multi-user.target.wants/qubes-mount-home.service ]
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then
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rm -f /etc/systemd/system/multi-user.target.wants/qubes-mount-home.service
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changed=true
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fi
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# fix / ro mounted
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ln -sf /usr/lib/systemd/system/systemd-remount-fs.service /etc/systemd/system/sysinit.target.wants/
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if [ "x$changed" != "x" ]
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then
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systemctl daemon-reload
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fi
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}
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######################
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## Archlinux Specific Functions ##
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######################
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config_prependtomark() {
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FILE=$1
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APPENDBEFORELINE=$2
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APPENDLINE=$3
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grep -F -q "$APPENDLINE" "$FILE" || sed "/$APPENDBEFORELINE/i$APPENDLINE" -i "$FILE"
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}
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config_appendtomark() {
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FILE=$1
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APPENDAFTERLINE=$2
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APPENDLINE=$3
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grep -F -q "$APPENDLINE" "$FILE" || sed "/$APPENDAFTERLINE/a$APPENDLINE" -i "$FILE"
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}
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config_cleanupmark() {
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FILE="$1"
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BEGINMARK="$2"
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ENDMARK="$3"
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if grep -F -q "$BEGINMARK" "$FILE"; then
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if grep -F -q "$ENDMARK" "$FILE"; then
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cp "$FILE" "$FILE.qubes-update-orig"
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sed -i -e "/^$BEGINMARK$/,/^$ENDMARK$/{
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/^$ENDMARK$/b
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/^$BEGINMARK$/!d
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}" "$FILE"
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rm -f "$FILE.qubes-update-orig"
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else
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echo "ERROR: found $BEGINMARK marker but not $ENDMARK in $FILE. Please cleanup this file manually."
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fi
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elif grep -F -q "$ENDMARK" "$FILE"; then
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echo "ERROR: found $ENDMARK marker but not $BEGINMARK in $FILE. Please cleanup this file manually."
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fi
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}
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update_finalize() {
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# Archlinux specific: If marker exists, cleanup text between begin and end marker
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QUBES_MARKER="### QUBES CONFIG MARKER ###"
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if grep -F -q "$QUBES_MARKER" /etc/pacman.conf; then
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config_prependtomark "/etc/pacman.conf" "# REPOSITORIES" "### QUBES CONFIG END MARKER ###"
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config_cleanupmark "/etc/pacman.conf" "$QUBES_MARKER" "### QUBES CONFIG END MARKER ###"
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# Else, add qubes config block marker
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else
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config_prependtomark "/etc/pacman.conf" "# REPOSITORIES" "$QUBES_MARKER"
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config_prependtomark "/etc/pacman.conf" "# REPOSITORIES" "### QUBES CONFIG END MARKER ###"
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fi
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# Include /etc/pacman.d drop-in directory
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config_appendtomark "/etc/pacman.conf" "$QUBES_MARKER" "Include = /etc/pacman.d/*.conf"
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/usr/lib/qubes/update-proxy-configs
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# Archlinux specific: ensure tty1 is enabled
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rm -f /etc/systemd/system/getty.target.wants/getty@tty*.service
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systemctl enable getty\@tty1.service
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systemctl daemon-reload
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}
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## arg 1: the new package version
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post_install() {
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update_qubesconfig
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# do the rest of %post thing only when updating for the first time...
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if [ -e /etc/init/serial.conf ] && ! [ -f /var/lib/qubes/serial.orig ] ; then
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cp /etc/init/serial.conf /var/lib/qubes/serial.orig
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fi
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chgrp user /var/lib/qubes/dom0-updates
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# Remove most of the udev scripts to speed up the VM boot time
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# Just leave the xen* scripts, that are needed if this VM was
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# ever used as a net backend (e.g. as a VPN domain in the future)
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#echo "--> Removing unnecessary udev scripts..."
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mkdir -p /var/lib/qubes/removed-udev-scripts
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for f in /etc/udev/rules.d/*
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do
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if [ "$(basename "$f")" == "xen-backend.rules" ] ; then
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continue
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fi
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if echo "$f" | grep -q qubes; then
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continue
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fi
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mv "$f" /var/lib/qubes/removed-udev-scripts/
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done
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mkdir -p /rw
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configure_notification-daemon
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configure_selinux
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configure_systemd 0
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update_finalize
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}
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## arg 1: the new package version
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## arg 2: the old package version
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post_upgrade() {
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update_qubesconfig
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configure_notification-daemon
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configure_selinux
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configure_systemd 1
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update_finalize
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}
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######################
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## Remove functions ##
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######################
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## arg 1: the old package version
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pre_remove() {
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# no more packages left
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if [ -e /var/lib/qubes/fstab.orig ] ; then
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mv /var/lib/qubes/fstab.orig /etc/fstab
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fi
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mv /var/lib/qubes/removed-udev-scripts/* /etc/udev/rules.d/
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if [ -e /var/lib/qubes/serial.orig ] ; then
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mv /var/lib/qubes/serial.orig /etc/init/serial.conf
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fi
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if [ "$1" -eq 0 ] ; then
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# Run this only during uninstall.
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# Save the preset file to later use it to re-preset services there
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# once the Qubes OS preset file is removed.
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mkdir -p /run/qubes-uninstall
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cp -f /usr/lib/systemd/system-preset/$qubes_preset_file /run/qubes-uninstall/
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cp -f /usr/lib/systemd/system-preset/$qubes_preset_file /run/qubes-uninstall/
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fi
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}
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## arg 1: the old package version
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post_remove() {
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changed=
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if [ -d /run/qubes-uninstall ]
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then
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# We have a saved preset file (or more).
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# Re-preset the units mentioned there.
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restore_units /run/qubes-uninstall/$qubes_preset_file
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rm -rf /run/qubes-uninstall
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changed=true
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fi
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if [ "x$changed" != "x" ]
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then
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systemctl daemon-reload
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fi
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if [ -L /lib/firmware/updates ] ; then
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rm /lib/firmware/updates
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fi
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rm -rf /var/lib/qubes/xdg
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for srv in qubes-sysinit qubes-misc-post qubes-mount-dirs qubes-qrexec-agent; do
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systemctl disable $srv.service
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done
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}
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