core-admin/dom0/aux-tools/qubes-watch-updates.sh
Marek Marczykowski 182e1ccf2b dom0: watch for updates from dom0 (#198)
Additionally synchronize clock every 6h. This is started by xdg-autostart (not
qvm-core) to have running Xorg - needed to prompt user for updates download.
2011-07-17 01:20:13 +02:00

69 lines
2.9 KiB
Bash
Executable File

#!/bin/sh
# 6h
UPDATES_SLEEP=21600
UPDATES_VM=`qvm-get-updatevm`
QREXEC_CLIENT=/usr/lib/qubes/qrexec_client
if [ -z "$UPDATES_VM" ]; then
echo "UpdateVM not set, exiting!" >&2
exit 1
fi
if ! xl domid "$UPDATES_VM" > /dev/null 2>&1; then
echo "UpdateVM not started, exiting!"
exit 1
fi
(
# Allow only one instance
flock --nonblock -s 200 || exit 1
/usr/lib/qubes/sync_rpmdb_updatevm.sh
while true; do
# Output of this script is UNTRUSTED!
$QREXEC_CLIENT -d $UPDATES_VM "user:/usr/lib/qubes/qubes_check_for_updates.sh" |\
while IFS=: read -n 819200 domain packages; do
if [ "x$domain" = "xtemplate" -a -n "$packages" ]; then
TEMPLATE_UPDATE_COUNT=`echo "$packages" | wc -w`
NOTIFY_UPDATE_COUNT=`cat /var/run/qubes/template_update_last_notify_count 2> /dev/null`
if [ "$NOTIFY_UPDATE_COUNT" != "$TEMPLATE_UPDATE_COUNT" ]; then
echo -n $TEMPLATE_UPDATE_COUNT > /var/run/qubes/template_update_last_notify_count
NOTIFY_PID=`cat /var/run/qubes/template_update_notify.pid 2> /dev/null`
if [ -z "$NOTIFY_PID" ] || ! kill -0 $NOTIFY_PID; then
# Actually this is for one TemplateVM, the base of
# UpdatesVM. But most likely this can apply to other
# templates too (based on the same system - Fedora 14
# currently)
NOTIFY_TITLE="Template update"
NOTIFY_TEXT="There are $TEMPLATE_UPDATE_COUNT updates available for TemplateVM"
NOTIFY_INFO="$NOTIFY_TEXT. Start TemplateVM to update it."
( zenity --notification --text "$NOTIFY_TEXT"; zenity --warning --title "$NOTIFY_TITLE" --text "$NOTIFY_INFO") &
echo $! > /var/run/qubes/template_update_notify.pid
fi
fi
elif [ "x$domain" = "dom0" -a -n "$packages" ]; then
PKGCOUNT=`echo -- "$packages" | wc -w`
if zenity --question --title="Qubes Dom0 updates" \
--text="$PKGCOUNT updates for dom0 available. Do you want to download its now?"; then
$QREXEC_CLIENT -d $UPDATES_VM "user:/usr/lib/qubes/qubes_download_dom0_updates.sh --doit"
# Wait for download completed
while pidof -x qubes-receive-updates >/dev/null; do sleep 0.5; done
# Yes, I know that it will block future checking for updates,
# but it is intentional (to not flood user with updates
# notification)
gpk-update-viewer
fi
fi
done
# At the end synchronize clock
UNTRUSTED_CURRENT_TIME="`$QREXEC_CLIENT -d $UPDATES_VM 'user:date +%s.%N'`"
# I believe that date has safe input parsing...
sudo date -s "$UNTRUSTED_CURRENT_TIME"
sleep $UPDATES_SLEEP
done
) 200> /var/run/qubes/updates-watch-lock