# Because Red Hat broke this macro by not including kernel-rpm-macros in the base buildroot
%{!?kernel_module_package_buildreqs:%global kernel_module_package_buildreqs kernel-devel kernel-abi-whitelists redhat-rpm-config kernel-rpm-macros elfutils-libelf-devel kmod}

%global kmodname wireguard

Name:           %{kmodname}-kmod
Version:        1.0.20200908
Release:        0%{?dist}.1
Summary:        Kernel module (kmod) for WireGuard

License:        GPLv2
URL:            https://wireguard.com/
Source0:        https://git.zx2c4.com/wireguard-linux-compat/snapshot/wireguard-linux-compat-%{version}.tar.xz

# For kmodtool
Source10:       kmod-wireguard.spec.preamble

# patch dependencies
BuildRequires:  git-core

# kernel module package macros were split out sometime after EL7...
%if ! (0%{?rhel} && 0%{?rhel} < 8)
BuildRequires:  kernel-rpm-macros
%endif
# kmod dependencies
BuildRequires:  %kernel_module_package_buildreqs
BuildRequires:  gcc
BuildRequires:  make

%{?kernel_module_package:%kernel_module_package -n %{kmodname} -p %{S:10}}

%description
WireGuard is a novel VPN that runs inside the Linux Kernel and utilizes
state-of-the-art cryptography. It aims to be faster, simpler, leaner,
and more useful than IPSec, while avoiding the massive headache. It intends
to be considerably more performant than OpenVPN. WireGuard is designed as a
general purpose VPN for running on embedded interfaces and super computers
alike, fit for many different circumstances. It runs over UDP.

This package contains the kernel module for WireGuard.

%package -n dkms-%{kmodname}
Summary:        Kernel module (kmod) for WireGuard built using DKMS
Provides:       kmod(wireguard.ko)
Requires:       dkms
Requires:       elfutils-libelf-devel
Requires:       kernel-devel
Requires:       gcc
Requires:       make
Requires:       %{kmodname}-kmod = %{version}-%{release}
Conflicts:      kmod-%{kmodname}
BuildArch:      noarch

%description -n dkms-%{kmodname}
WireGuard is a novel VPN that runs inside the Linux Kernel and utilizes
state-of-the-art cryptography. It aims to be faster, simpler, leaner,
and more useful than IPSec, while avoiding the massive headache. It intends
to be considerably more performant than OpenVPN. WireGuard is designed as a
general purpose VPN for running on embedded interfaces and super computers
alike, fit for many different circumstances. It runs over UDP.

This package contains the kernel module sources for WireGuard that can build
the kernel module using DKMS.


%prep
%autosetup -n wireguard-linux-compat-%{version} -S git_am


%build
mkdir kmodbuild
for flavor in %{flavors_to_build}; do
    cp -a src kmodbuild/$flavor
    %make_build -C %{kernel_source $flavor} modules M=$PWD/kmodbuild/$flavor
done


%install
export INSTALL_MOD_PATH=%{buildroot}
for flavor in %{flavors_to_build}; do
    %{__make} V=1 -C %{kernel_source $flavor} modules_install M=$PWD/kmodbuild/$flavor
done

# DKMS code install
mkdir -p %{buildroot}%{_usrsrc}/%{kmodname}-%{version}
make -C src dkms-install DESTDIR=%{buildroot} DKMSDIR=%{_usrsrc}/%{kmodname}-%{version}


%post -n dkms-%{kmodname}
if [ "$1" -ge "1" ]; then
    if [ -f /usr/lib/dkms/common.postinst ]; then
        /usr/lib/dkms/common.postinst %{kmodname} %{version}
        exit $?
    fi
fi

%preun -n dkms-%{kmodname}
if [ $1 -eq 0 ]; then
    lsmod | grep %{kmodname} >& /dev/null
    if [ $? -eq 0 ]; then
        modprobe -r %{kmodname}
    fi
fi

dkms status -m %{kmodname} -v %{version} | grep %{kmodname} >& /dev/null
if [ $? -eq 0 ]; then
    dkms remove -m %{kmodname} -v %{version} --all --rpm_safe_upgrade
fi


%files
%license COPYING
%doc README.md

%files -n dkms-%{kmodname}
%{_usrsrc}/%{kmodname}-%{version}/


%changelog
* Wed Jun 17 2020 Neal Gompa <ngompa13@gmail.com>
- Initial package