130 lines
4.7 KiB
Bash
130 lines
4.7 KiB
Bash
# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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MODULES_OPTIONAL_IUSE="module"
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inherit linux-mod-r1
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DESCRIPTION="AmneziaWG kernel module"
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HOMEPAGE="https://github.com/amnezia-vpn/amneziawg-linux-kernel-module"
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if [[ ${PV} == 9999 ]]; then
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inherit git-r3
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EGIT_REPO_URI="https://github.com/amnezia-vpn/amneziawg-linux-kernel-module.git"
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else
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SRC_URI="https://github.com/amnezia-vpn/${PN}/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
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# Please don't stabilize this package. Stable users should use gentoo-sources 5.4 or 5.10.
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KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86"
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fi
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LICENSE="GPL-2"
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SLOT="0"
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IUSE="debug +module module-src"
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CONFIG_CHECK="NET INET NET_UDP_TUNNEL CRYPTO_ALGAPI"
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# On modern kernels AmneziaWG needs Wireguard sources from kernel to generate
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# own sources from. On a typical Gentoo installation 'sys-kernel/*-sources'
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# package contains needed kernel sources. But installations based on
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# distribution kernel (sys-kernel/*-kernel) have no kernel sources installed.
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# That is why this ebuild has a build dependency on gentoo-sources or vanilla-sources.
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BDEPEND="|| ( sys-kernel/gentoo-sources sys-kernel/vanilla-sources )"
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pkg_setup() {
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if use module; then
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linux-mod-r1_pkg_setup
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if kernel_is -lt 3 10 0; then
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die "This version of ${PN} requires Linux >= 3.10"
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fi
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fi
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}
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src_prepare() {
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default
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if kernel_is -ge 5 6 0; then
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# We need to select a directory with kernel sources.
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# Usually, /usr/src/linux is the right choise, so we check it first.
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# If /usr/src/linux contains no sources (distribution kernel), we check
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# other subdirectories in /usr/src sorted by version in reverse order.
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echo "Searching for kernel sources..."
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dirs=$(find /usr/src -maxdepth 1 -name 'linux-*' -type d | sort --reverse --version-sort --field-separator=- --key=2,2)
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dirs="/usr/src/linux ${dirs}"
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for kernel_dir in ${dirs}; do
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[ -d "$kernel_dir" ] || continue
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if [[ -f ${kernel_dir}/drivers/net/wireguard/main.c ]]; then
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echo "- ${kernel_dir} -> found"
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KERNEL_SOURCES_DIR=${KERNEL_SOURCES_DIR:-${kernel_dir}}
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else
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echo "- ${kernel_dir} -> not found"
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fi
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done
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if [[ -d ${KERNEL_SOURCES_DIR} ]]; then
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einfo "Using kernel sources in ${KERNEL_SOURCES_DIR}"
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else
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die "Kernel sources not found, but required for building."
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fi
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sed -i "s@^KERNELRELEASE ?= .*@KERNELRELEASE ?= ${KV_FULL}@" src/Makefile || die "Fail to set desired kernel verion in the Makefile"
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ln -s ${KERNEL_SOURCES_DIR} src/kernel || die "Creation link to kernel sources directory fail"
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emake -C ${S}/src apply-patches || die "Fail to apply amnezia patches over wireguard"
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fi
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}
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src_compile() {
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local modlist=( amneziawg=net:src::module )
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local modargs=(
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KERNELDIR=${KV_OUT_DIR}
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)
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use debug && modargs+=( CONFIG_WIREGUARD_DEBUG=y )
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use module && linux-mod-r1_src_compile
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}
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src_install() {
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use module && linux-mod-r1_src_install
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use module-src && emake DESTDIR="${D}" PREFIX="${EPREFIX}/usr" -C src dkms-install
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}
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pkg_postinst() {
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if use module-src && ! use module; then
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einfo
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einfo "You have enabled the module-src USE flag without the module USE"
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einfo "flag. This means that sources are installed to"
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einfo "${ROOT}/usr/src/amneziawg instead of having the"
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einfo "kernel module compiled. You will need to compile the module"
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einfo "yourself. Most likely, you don't want this USE flag, and should"
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einfo "rather use USE=module"
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einfo
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fi
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if use module; then
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linux-mod-r1_pkg_postinst
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local old new
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if [[ $(uname -r) != "${KV_FULL}" ]]; then
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ewarn
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ewarn "You have just built AmneziaWG for kernel ${KV_FULL}, yet the currently running"
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ewarn "kernel is $(uname -r). If you intend to use this AmneziaWG module on the currently"
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ewarn "running machine, you will first need to reboot it into the kernel ${KV_FULL}, for"
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ewarn "which this module was built."
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ewarn
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elif [[ -f /sys/module/amneziawg/version ]] && \
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old="$(< /sys/module/amneziawg/version)" && \
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new="$(modinfo -F version "${ROOT}/lib/modules/${KV_FULL}/net/amneziawg.ko" 2>/dev/null)" && \
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[[ $old != "$new" ]]; then
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ewarn
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ewarn "You appear to have just upgraded AmneziaWG from version v$old to v$new."
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ewarn "However, the old version is still running on your system. In order to use the"
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ewarn "new version, you will need to remove the old module and load the new one. As"
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ewarn "root, you can accomplish this with the following commands:"
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ewarn
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ewarn " # rmmod amneziawg"
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ewarn " # modprobe amneziawg"
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ewarn
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ewarn "Do note that doing this will remove current AmneziaWG interfaces, so you may want"
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ewarn "to gracefully remove them yourself prior."
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ewarn
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fi
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fi
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}
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