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fetch.sh
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#!/usr/bin/bash
set -eoux pipefail
kernel_version="${KERNEL_VERSION}"
kernel_flavor="${KERNEL_FLAVOR}"
build_tag="${KERNEL_BUILD_TAG:-latest}"
# CoreOS pool repo
# curl -LsSf -o /etc/yum.repos.d/fedora-coreos-pool.repo \
# https://raw.githubusercontent.com/coreos/fedora-coreos-config/testing-devel/fedora-coreos-pool.repo
dnf install -y dnf-plugins-core rpmrebuild sbsigntools openssl
case "$kernel_flavor" in
"asus")
dnf copr enable -y lukenukem/asus-kernel
;;
"fsync")
dnf copr enable -y sentry/kernel-fsync
;;
"fsync-ba")
dnf copr enable -y sentry/kernel-ba
;;
"surface")
if [[ "$(rpm -E %fedora)" -lt 41 ]]; then
dnf config-manager --add-repo=https://pkg.surfacelinux.com/fedora/linux-surface.repo
else
dnf config-manager addrepo --from-repofile=https://pkg.surfacelinux.com/fedora/linux-surface.repo
fi
;;
"coreos-stable")
;;
"coreos-testing")
;;
"bazzite")
;;
"main")
;;
*)
echo "unexpected kernel_flavor ${kernel_flavor} for query"
;;
esac
if [[ "${kernel_flavor}" =~ asus|fsync ]]; then
dnf download -y \
kernel-"${kernel_version}" \
kernel-modules-"${kernel_version}" \
kernel-modules-core-"${kernel_version}" \
kernel-modules-extra-"${kernel_version}" \
kernel-devel-"${kernel_version}" \
kernel-devel-matched-"${kernel_version}" \
kernel-uki-virt-"${kernel_version}"
elif [[ "${kernel_flavor}" == "surface" ]]; then
dnf download -y \
kernel-surface-"${kernel_version}" \
kernel-surface-modules-"${kernel_version}" \
kernel-surface-modules-core-"${kernel_version}" \
kernel-surface-modules-extra-"${kernel_version}" \
kernel-surface-devel-"${kernel_version}" \
kernel-surface-devel-matched-"${kernel_version}" \
kernel-surface-default-watchdog-"${kernel_version}" \
iptsd \
libwacom-surface \
libwacom-surface-data
elif [[ "${kernel_flavor}" == "bazzite" ]]; then
# Using curl for bazzite release
curl -LO https://github.com/hhd-dev/kernel-bazzite/releases/download/"$build_tag"/kernel-"$kernel_version".rpm
curl -LO https://github.com/hhd-dev/kernel-bazzite/releases/download/"$build_tag"/kernel-core-"$kernel_version".rpm
curl -LO https://github.com/hhd-dev/kernel-bazzite/releases/download/"$build_tag"/kernel-modules-"$kernel_version".rpm
curl -LO https://github.com/hhd-dev/kernel-bazzite/releases/download/"$build_tag"/kernel-modules-core-"$kernel_version".rpm
curl -LO https://github.com/hhd-dev/kernel-bazzite/releases/download/"$build_tag"/kernel-modules-extra-"$kernel_version".rpm
curl -LO https://github.com/hhd-dev/kernel-bazzite/releases/download/"$build_tag"/kernel-devel-"$kernel_version".rpm
curl -LO https://github.com/hhd-dev/kernel-bazzite/releases/download/"$build_tag"/kernel-devel-matched-"$kernel_version".rpm
curl -LO https://github.com/hhd-dev/kernel-bazzite/releases/download/"$build_tag"/kernel-uki-virt-"$kernel_version".rpm
# curl -LO https://github.com/hhd-dev/kernel-bazzite/releases/download/"$build_tag"/kernel-uki-virt-addons-"$kernel_version".rpm
else
KERNEL_MAJOR_MINOR_PATCH=$(echo "$kernel_version" | cut -d '-' -f 1)
KERNEL_RELEASE="$(echo "$kernel_version" | cut -d - -f 2 | cut -d . -f 1).$(echo "$kernel_version" | cut -d - -f 2 | cut -d . -f 2)"
ARCH=$(uname -m)
# Using curl instead of dnf download for https links
curl -LO https://kojipkgs.fedoraproject.org//packages/kernel/"$KERNEL_MAJOR_MINOR_PATCH"/"$KERNEL_RELEASE"/"$ARCH"/kernel-"$kernel_version".rpm
curl -LO https://kojipkgs.fedoraproject.org//packages/kernel/"$KERNEL_MAJOR_MINOR_PATCH"/"$KERNEL_RELEASE"/"$ARCH"/kernel-modules-"$kernel_version".rpm
curl -LO https://kojipkgs.fedoraproject.org//packages/kernel/"$KERNEL_MAJOR_MINOR_PATCH"/"$KERNEL_RELEASE"/"$ARCH"/kernel-modules-core-"$kernel_version".rpm
curl -LO https://kojipkgs.fedoraproject.org//packages/kernel/"$KERNEL_MAJOR_MINOR_PATCH"/"$KERNEL_RELEASE"/"$ARCH"/kernel-modules-extra-"$kernel_version".rpm
curl -LO https://kojipkgs.fedoraproject.org//packages/kernel/"$KERNEL_MAJOR_MINOR_PATCH"/"$KERNEL_RELEASE"/"$ARCH"/kernel-devel-"$kernel_version".rpm
curl -LO https://kojipkgs.fedoraproject.org//packages/kernel/"$KERNEL_MAJOR_MINOR_PATCH"/"$KERNEL_RELEASE"/"$ARCH"/kernel-devel-matched-"$kernel_version".rpm
curl -LO https://kojipkgs.fedoraproject.org//packages/kernel/"$KERNEL_MAJOR_MINOR_PATCH"/"$KERNEL_RELEASE"/"$ARCH"/kernel-uki-virt-"$kernel_version".rpm
fi
if [[ "${kernel_flavor}" =~ fsync|fsync-ba ]]; then
dnf download -y \
kernel-headers-"${kernel_version}"
fi
if [[ ! -s /tmp/certs/private_key.priv ]]; then
echo "WARNING: Using test signing key."
cp /tmp/certs/private_key.priv{.test,}
cp /tmp/certs/public_key.der{.test,}
fi
PUBLIC_KEY_PATH="/etc/pki/kernel/public/public_key.crt"
PRIVATE_KEY_PATH="/etc/pki/kernel/private/private_key.priv"
openssl x509 -in /tmp/certs/public_key.der -out /tmp/certs/public_key.crt
install -Dm644 /tmp/certs/public_key.crt "$PUBLIC_KEY_PATH"
install -Dm644 /tmp/certs/private_key.priv "$PRIVATE_KEY_PATH"
ls -la /
if [[ "${kernel_flavor}" =~ asus|fsync|fsync-ba ]]; then
dnf install -y \
/kernel-"$kernel_version".rpm \
/kernel-modules-"$kernel_version".rpm \
/kernel-modules-core-"$kernel_version".rpm \
/kernel-modules-extra-"$kernel_version".rpm \
kernel-core-"${kernel_version}"
elif [[ "${kernel_flavor}" =~ surface ]]; then
dnf install -y \
/kernel-surface-"$kernel_version".rpm \
/kernel-surface-modules-"$kernel_version".rpm \
/kernel-surface-modules-core-"$kernel_version".rpm \
/kernel-surface-modules-extra-"$kernel_version".rpm \
kernel-surface-core-"${kernel_version}"
elif [[ "${kernel_flavor}" == "bazzite" ]]; then
dnf install -y \
/kernel-"$kernel_version".rpm \
/kernel-core-"$kernel_version".rpm \
/kernel-modules-"$kernel_version".rpm \
/kernel-modules-core-"$kernel_version".rpm \
/kernel-modules-extra-"$kernel_version".rpm
else
dnf install -y \
/kernel-"$kernel_version".rpm \
/kernel-modules-"$kernel_version".rpm \
/kernel-modules-core-"$kernel_version".rpm \
/kernel-modules-extra-"$kernel_version".rpm \
https://kojipkgs.fedoraproject.org//packages/kernel/"$KERNEL_MAJOR_MINOR_PATCH"/"$KERNEL_RELEASE"/"$ARCH"/kernel-core-"$kernel_version".rpm
fi
# Strip Signatures from non-fedora Kernels
if [[ ${kernel_flavor} =~ main|coreos ]]; then
echo "Will not strip Fedora signature(s) from ${kernel_flavor} kernel."
else
EXISTING_SIGNATURES="$(sbverify --list /usr/lib/modules/"$kernel_version"/vmlinuz | grep '^signature \([0-9]\+\)$' | sed 's/^signature \([0-9]\+\)$/\1/')" || true
if [[ -n "$EXISTING_SIGNATURES" ]]; then
for SIGNUM in $EXISTING_SIGNATURES; do
echo "Found existing signature at signum $SIGNUM, removing..."
sbattach --remove /usr/lib/modules/"${kernel_version}"/vmlinuz
done
fi
fi
# Sign Kernel with Key
sbsign --cert "$PUBLIC_KEY_PATH" --key "$PRIVATE_KEY_PATH" /usr/lib/modules/"${kernel_version}"/vmlinuz --output /usr/lib/modules/"${kernel_version}"/vmlinuz
# Verify Signatures
sbverify --list /usr/lib/modules/"${kernel_version}"/vmlinuz
rm -f "$PRIVATE_KEY_PATH" "$PUBLIC_KEY_PATH"
if [[ ${DUAL_SIGN:-} == "true" ]]; then
SECOND_PUBLIC_KEY_PATH="/etc/pki/kernel/public/public_key_2.crt"
SECOND_PRIVATE_KEY_PATH="/etc/pki/kernel/private/public_key_2.priv"
if [[ ! -s /tmp/certs/private_key_2.priv ]]; then
echo "WARNING: Using test signing key."
cp /tmp/certs/private_key_2.priv{.test,}
cp /tmp/certs/public_key_2.der{.test,}
find /tmp/certs/
fi
openssl x509 -in /tmp/certs/public_key_2.der -out /tmp/certs/public_key_2.crt
install -Dm644 /tmp/certs/public_key_2.crt "$SECOND_PUBLIC_KEY_PATH"
install -Dm644 /tmp/certs/private_key_2.priv "$SECOND_PRIVATE_KEY_PATH"
sbsign --cert "$SECOND_PUBLIC_KEY_PATH" --key "$SECOND_PRIVATE_KEY_PATH" /usr/lib/modules/"${kernel_version}"/vmlinuz --output /usr/lib/modules/"${kernel_version}"/vmlinuz
sbverify --list /usr/lib/modules/"${kernel_version}"/vmlinuz
rm -f "$SECOND_PRIVATE_KEY_PATH" "$SECOND_PUBLIC_KEY_PATH"
fi
ln -s / /tmp/buildroot
# Rebuild RPMs and Verify
if [[ "${kernel_flavor}" =~ surface ]]; then
rpmrebuild --additional=--buildroot=/tmp/buildroot --batch kernel-surface-core-"${kernel_version}"
rm -f /usr/lib/modules/"${kernel_version}"/vmlinuz
dnf reinstall -y \
/kernel-surface-"$kernel_version".rpm \
/kernel-surface-modules-"$kernel_version".rpm \
/kernel-surface-modules-core-"$kernel_version".rpm \
/kernel-surface-modules-extra-"$kernel_version".rpm \
/root/rpmbuild/RPMS/"$(uname -m)"/kernel-*.rpm
else
rpmrebuild --additional=--buildroot=/tmp/buildroot --batch kernel-core-"${kernel_version}"
rm -f /usr/lib/modules/"${kernel_version}"/vmlinuz
dnf reinstall -y \
/kernel-"$kernel_version".rpm \
/kernel-modules-"$kernel_version".rpm \
/kernel-modules-core-"$kernel_version".rpm \
/kernel-modules-extra-"$kernel_version".rpm \
/root/rpmbuild/RPMS/"$(uname -m)"/kernel-*.rpm
fi
sbverify --list /usr/lib/modules/"${kernel_version}"/vmlinuz
# Make Temp Dir
mkdir -p /tmp/rpms
# Move RPMs over
mv /kernel-*.rpm /tmp/rpms
mv /root/rpmbuild/RPMS/"$(uname -m)"/kernel-*.rpm /tmp/rpms
if [[ "${kernel_flavor}" =~ surface ]]; then
cp iptsd-*.rpm libwacom-*.rpm /tmp/rpms
fi
# Delete keys in /tmp if we decide to publish this later
rm -rf /tmp/certs