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Fix WireGuard support detection

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Support was enabled automatically if a WireGuard package was found or could have been made available. But if the WireGuard kernel module is not available, it needs to be compiled. The required kernel headers are only reliably known for Raspberry Pi (Raspbian) and for amd64. This commit resolves the related issue where linux-image-amd64 was attempted to be installed on non-amd64 systems: https://github.com/pivpn/pivpn/issues/1180

Additionally this commit resolves the issue that kernel headers were required and a DKMS build done, even if the module was builtin, when no WireGuard package was found.

The $NEED_WIREGUARD_REPO variable has been replaced with $AVAILABLE_WIREGUARD, which practically serves the same information and allows a simpler support check.

Signed-off-by: MichaIng <micha@dietpi.com>
This commit is contained in:
MichaIng 2020-12-12 00:35:49 +01:00
parent 13e10cfe35
commit 5077d70a2f
1 changed files with 27 additions and 25 deletions
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52
auto_install/install.sh
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@ -475,31 +475,33 @@ preconfigurePackages(){
fi
AVAILABLE_WIREGUARD="$(apt-cache policy wireguard | grep -m1 'Candidate: ' | grep -v '(none)' | awk '{print $2}')"
WIREGUARD_BUILTIN=0
NEED_WIREGUARD_REPO=0
if [ -n "$AVAILABLE_WIREGUARD" ]; then
if [ "$PLAT" = "Debian" ] || [ "$PLAT" = "Ubuntu" ]; then
# If a wireguard kernel object is found and is part of any installed package, then
# it has not been build via DKMS or manually (installing via wireguard-dkms does not
# make the module part of the package since the module itself is built at install time
# and not part of the .deb).
# Source: https://github.com/MichaIng/DietPi/blob/7bf5e1041f3b2972d7827c48215069d1c90eee07/dietpi/dietpi-software#L1807-L1815
for i in /lib/modules/**/wireguard.ko; do
[[ -f $i ]] || continue
dpkg-query -S "$i" &> /dev/null || continue
WIREGUARD_BUILTIN=1
break
done
fi
# If a wireguard kernel object is found and is part of any installed package, then
# it has not been build via DKMS or manually (installing via wireguard-dkms does not
# make the module part of the package since the module itself is built at install time
# and not part of the .deb).
# Source: https://github.com/MichaIng/DietPi/blob/7bf5e1041f3b2972d7827c48215069d1c90eee07/dietpi/dietpi-software#L1807-L1815
WIREGUARD_BUILTIN=0
for i in /lib/modules/**/wireguard.ko; do
[[ -f $i ]] || continue
dpkg-query -S "$i" &> /dev/null || continue
WIREGUARD_BUILTIN=1
break
done
if
# If the module is builtin and the package available, we only need to install wireguard-tools.
[[ $WIREGUARD_BUILTIN == 1 && -n $AVAILABLE_WIREGUARD ]] ||
# If the package is not available, on Debian and Raspbian we can add it via Bullseye repository.
[[ $WIREGUARD_BUILTIN == 1 && ( $PLAT == 'Debian' || $PLAT == 'Raspbian' ) ]] ||
# If the module is not builtin, on Raspbian we know the headers package: raspberrypi-kernel-headers
[[ $PLAT == 'Raspbian' ]] ||
# On Debian (and Ubuntu), we can only reliably assume the headers package for amd64: linux-image-amd64
[[ $PLAT == 'Debian' && $DPKG_ARCH == 'amd64' ]] ||
# On Ubuntu, additionally the WireGuard package needs to be available, since we didn't test mixing Ubuntu repositories.
[[ $PLAT == 'Ubuntu' && $DPKG_ARCH == 'amd64' && -n $AVAILABLE_WIREGUARD ]]
then
WIREGUARD_SUPPORT=1
else
if [ "$PLAT" = "Debian" ] || [ "$PLAT" = "Raspbian" ]; then
NEED_WIREGUARD_REPO=1
WIREGUARD_SUPPORT=1
else
WIREGUARD_SUPPORT=0
fi
fi
if [ "$OPENVPN_SUPPORT" -eq 0 ] && [ "$WIREGUARD_SUPPORT" -eq 0 ]; then
@ -1264,7 +1266,7 @@ installWireGuard(){
echo "::: Installing WireGuard from Debian package... "
if [ "$NEED_WIREGUARD_REPO" -eq 1 ]; then
if [ -z "$AVAILABLE_WIREGUARD" ]; then
echo "::: Adding Raspbian repository... "
echo "deb http://raspbian.raspberrypi.org/raspbian/ bullseye main" | $SUDO tee /etc/apt/sources.list.d/pivpn-bullseye-repo.list > /dev/null
@ -1284,7 +1286,7 @@ installWireGuard(){
echo "::: Installing WireGuard from Debian package... "
if [ "$NEED_WIREGUARD_REPO" -eq 1 ]; then
if [ -z "$AVAILABLE_WIREGUARD" ]; then
echo "::: Adding Debian repository... "
echo "deb https://deb.debian.org/debian/ bullseye main" | $SUDO tee /etc/apt/sources.list.d/pivpn-bullseye-repo.list > /dev/null