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#!/bin/sh -e
# This script can be called in the following ways:
#
# Before the package is installed:
# <new-preinst> install
#
# Before removed package is upgraded:
# <new-preinst> install <old-version>
#
# Before the package is upgraded:
# <new-preinst> upgrade <old-version>
#
#
# If postrm fails during upgrade or fails on failed upgrade:
# <old-preinst> abort-upgrade <new-version>
set -e
pathfind() {
OLDIFS="$IFS"
IFS=:
for p in $PATH; do
if [ -x "$p/$*" ]; then
IFS="$OLDIFS"
return 0
fi
done
IFS="$OLDIFS"
return 1
}
case "$1" in
install)
;;
upgrade)
# 2.3.0 is not compatible with 2.2.x. Thus we need to create a new db.
# Otherwise, the kernel will panic on boot
if dpkg --compare-versions "$2" lt 2.4.0-20111025-1; then
if [ -d /etc/tomoyo ]; then
mv -f /etc/tomoyo /etc/tomoyo.old.$2;
fi
fi
# 2.6 series requires Linux 5.1 and above, also Linux 5.1 does NOT need to specify "security=tomoyo"
# tomoyo2.6 + < Linux 5.1 = panic, so old "security=tomoyo" should remove for safety
if eval "dpkg --compare-versions "$2" lt 2.6.0-20190305-1 && \
grep -q "^GRUB_CMDLINE_LINUX=.*security=tomoyo.*" /etc/default/grub && \
pathfind update-grub"; then
sed -e 's/security=tomoyo//' -i /etc/default/grub && update-grub
fi
;;
abort-upgrade)
;;
*)
echo "$0 called with unknown argument \`$1'" 1>&2
exit 1
;;
esac
#DEBHELPER#
exit 0
|
