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# arg 1: the new package version
# arg 2: the old package version
KERNEL_NAME=-grsec
KERNEL_VERSION=3.7.1-4-LIBRE-GRSEC
_fix_permissions() {
/usr/bin/paxutils
echo
echo You can repeat this process after updating or installing affected
echo binaries by running "paxutils".
}
_add_proc_group() {
if ! getent group proc-trusted >/dev/null; then
groupadd -g 9998 -r proc-trusted
useradd -g 9998 -r proc-trusted
fi
}
_add_tpe_group() {
if getent group grsec-trusted >/dev/null; then
groupmod -n tpe-trusted grsec-trusted
fi
if ! getent group tpe-trusted >/dev/null; then
groupadd -g 9999 -r tpe-trusted
useradd -g 9999 -r tpe-trusted
fi
}
_help() {
echo
echo For group tpe-trusted, Trusted Path Execution is disabled. For group
echo proc-trusted, the access to /proc is not restricted. Think carefully
echo before adding a normal user to this group.
echo
echo This is controllable with the sysctl options \"kernel.grsecurity.tpe*\".
echo
echo There is an extensive wikibook on grsecurity:
echo http://en.wikibooks.org/wiki/Grsecurity
}
# set a sane PATH to ensure that critical utils like depmod will be found
export PATH='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'
post_install () {
# updating module dependencies
echo ">>> Updating module dependencies. Please wait ..."
depmod ${KERNEL_VERSION}
if command -v mkinitcpio 2>&1 > /dev/null; then
echo ">>> Generating initial ramdisk, using mkinitcpio. Please wait..."
mkinitcpio -p linux-libre${KERNEL_NAME}
fi
# compat symlinks for the official kernels only
if [ -z "${KERNEL_NAME}" -o "${KERNEL_NAME}" = "-grsec" ]; then
loaders="$(find /boot -name syslinux.cfg -or -name extlinux.conf -or -name grub.cfg -or -name menu.lst)"
[ -f /etc/lilo.conf ] && loaders="$loaders /etc/lilo.conf"
if [ -n "${loaders}" ] && grep -q -e vmlinuz26 -e kernel26.img -e kernel26-fallback.img $loaders; then
# add compat symlinks for the initramfs images
ln -sf initramfs-linux-libre${KERNEL_NAME}.img boot/kernel26${KERNEL_NAME}.img
ln -sf initramfs-linux-libre${KERNEL_NAME}-fallback.img \
boot/kernel26${KERNEL_NAME}-fallback.img
ln -sf vmlinuz-linux-libre${KERNEL_NAME} /boot/vmlinuz26${KERNEL_NAME}
fi
fi
_add_proc_group
_add_tpe_group
_fix_permissions
_help
}
post_upgrade() {
pacman -Q grub &>/dev/null
hasgrub=$?
pacman -Q grub-common &>/dev/null
hasgrub2=$?
pacman -Q lilo &>/dev/null
haslilo=$?
# reminder notices
if [ $haslilo -eq 0 ]; then
echo ">>>"
if [ $hasgrub -eq 0 -o $hasgrub2 -eq 0 ]; then
echo ">>> If you use the LILO bootloader, you should run 'lilo' before rebooting."
else
echo ">>> You appear to be using the LILO bootloader. You should run"
echo ">>> 'lilo' before rebooting."
fi
echo ">>>"
fi
if findmnt --fstab -uno SOURCE /boot &>/dev/null && ! mountpoint -q /boot; then
echo "WARNING: /boot appears to be a separate partition but is not mounted."
fi
# updating module dependencies
echo ">>> Updating module dependencies. Please wait ..."
depmod ${KERNEL_VERSION}
if command -v mkinitcpio 2>&1 > /dev/null; then
echo ">>> Generating initial ramdisk, using mkinitcpio. Please wait..."
mkinitcpio -p linux-libre${KERNEL_NAME}
fi
_add_proc_group
_add_tpe_group
_fix_permissions
_help
}
post_remove() {
# also remove the compat symlinks
rm -f boot/{initramfs-linux-libre,kernel26}${KERNEL_NAME}.img
rm -f boot/{initramfs-linux-libre,kernel26}${KERNEL_NAME}-fallback.img
for group in grsec-trusted proc-trusted tpe-trusted; do
if getent group $group >/dev/null; then
groupdel $group
fi
done
}
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