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# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
_flavor=grsec
pkgname=linux-${_flavor}
pkgver=3.0.8
_kernver=3.0
pkgrel=1
pkgdesc="Linux kernel with grsecurity"
url=http://grsecurity.net
depends="mkinitfs linux-firmware"
makedepends="perl installkernel bash gmp-dev"
options="!strip"
_config=${config:-kernelconfig.${CARCH}}
install=
source="ftp://ftp.kernel.org/pub/linux/kernel/v3.0/linux-$_kernver.tar.bz2
ftp://ftp.kernel.org/pub/linux/kernel/v3.0/patch-$pkgver.bz2
grsecurity-2.2.2-3.0.8-201110250925.patch
grsec-timblogiw-noconst.patch
0001-ip_gre-dont-increase-dev-needed_headroom-on-a-live-d.patch
0001-ipv4-fix-ipsec-forward-performance-regression.patch
0004-arp-flush-arp-cache-on-device-change.patch
kernelconfig.x86
kernelconfig.x86_64
"
subpackages="$pkgname-dev"
arch="x86 x86_64 arm"
license="GPL-2"
_abi_release=${pkgver}-${_flavor}
prepare() {
local _patch_failed=
cd "$srcdir"/linux-$_kernver
if [ "$_kernver" != "$pkgver" ]; then
bunzip2 -c < "$srcdir"/patch-$pkgver.bz2 | patch -p1 -N || return 1
fi
# first apply patches in specified order
for i in $source; do
case $i in
*.patch)
msg "Applying $i..."
if ! patch -s -p1 -N -i "$srcdir"/$i; then
echo $i >>failed
_patch_failed=1
fi
;;
esac
done
if ! [ -z "$_patch_failed" ]; then
error "The following patches failed:"
cat failed
return 1
fi
mkdir -p "$srcdir"/build
cp "$srcdir"/$_config "$srcdir"/build/.config || return 1
make -C "$srcdir"/linux-$_kernver O="$srcdir"/build HOSTCC="${CC:-gcc}" \
silentoldconfig
}
# this is so we can do: 'abuild menuconfig' to reconfigure kernel
menuconfig() {
cd "$srcdir"/build || return 1
make menuconfig
cp .config "$startdir"/$_config
}
build() {
cd "$srcdir"/build
export GCC_SPECS=/usr/share/gcc/hardenednopie.specs
make CC="${CC:-gcc}" \
KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine" \
|| return 1
}
package() {
cd "$srcdir"/build
mkdir -p "$pkgdir"/boot "$pkgdir"/lib/modules
make -j1 modules_install firmware_install install \
INSTALL_MOD_PATH="$pkgdir" \
INSTALL_PATH="$pkgdir"/boot \
|| return 1
rm -f "$pkgdir"/lib/modules/${_abi_release}/build \
"$pkgdir"/lib/modules/${_abi_release}/source
rm -rf "$pkgdir"/lib/firmware
install -D include/config/kernel.release \
"$pkgdir"/usr/share/kernel/$_flavor/kernel.release
}
dev() {
# copy the only the parts that we really need for build 3rd party
# kernel modules and install those as /usr/src/linux-headers,
# simlar to what ubuntu does
#
# this way you dont need to install the 300-400 kernel sources to
# build a tiny kernel module
#
pkgdesc="Headers and script for third party modules for grsec kernel"
local dir="$subpkgdir"/usr/src/linux-headers-${_abi_release}
# first we import config, run prepare to set up for building
# external modules, and create the scripts
mkdir -p "$dir"
cp "$srcdir"/$_config "$dir"/.config
make -j1 -C "$srcdir"/linux-$_kernver O="$dir" HOSTCC="${CC:-gcc}" \
silentoldconfig prepare modules_prepare scripts
# remove the stuff that poits to real sources. we want 3rd party
# modules to believe this is the soruces
rm "$dir"/Makefile "$dir"/source
# copy the needed stuff from real sources
#
# this is taken from ubuntu kernel build script
# http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-jaunty.git;a=blob;f=debian/rules.d/3-binary-indep.mk;hb=HEAD
cd "$srcdir"/linux-$_kernver
find . -path './include/*' -prune -o -path './scripts/*' -prune \
-o -type f \( -name 'Makefile*' -o -name 'Kconfig*' \
-o -name 'Kbuild*' -o -name '*.sh' -o -name '*.pl' \
-o -name '*.lds' \) | cpio -pdm "$dir"
cp -a drivers/media/dvb/dvb-core/*.h "$dir"/drivers/media/dvb/dvb-core
cp -a drivers/media/video/*.h "$dir"/drivers/media/video
cp -a drivers/media/dvb/frontends/*.h "$dir"/drivers/media/dvb/frontends
cp -a scripts include "$dir"
find $(find arch -name include -type d -print) -type f \
| cpio -pdm "$dir"
install -Dm644 "$srcdir"/build/Module.symvers \
"$dir"/Module.symvers
mkdir -p "$subpkgdir"/lib/modules/${_abi_release}
ln -sf /usr/src/linux-headers-${_abi_release} \
"$subpkgdir"/lib/modules/${_abi_release}/build
}
md5sums="398e95866794def22b12dfbc15ce89c0 linux-3.0.tar.bz2
49618d8c7a71549c8870eb709c7d3f81 patch-3.0.8.bz2
5015a2afce7d3665bf74e0896529fb90 grsecurity-2.2.2-3.0.8-201110250925.patch
c41cf0ee9794f393423c6b2093072260 grsec-timblogiw-noconst.patch
ebb99ef6ad8cd2d9fd8f49d5c5849057 0001-ip_gre-dont-increase-dev-needed_headroom-on-a-live-d.patch
b27bc150f7a3932de28fcb8803809cbc 0001-ipv4-fix-ipsec-forward-performance-regression.patch
776adeeb5272093574f8836c5037dd7d 0004-arp-flush-arp-cache-on-device-change.patch
0134b22fc2c95106803f4043cffed087 kernelconfig.x86
d97d1808eebdfb97734dccfbcaea35f2 kernelconfig.x86_64"