1 files changed, 74 insertions, 0 deletions
diff --git a/app-admin/opensnitch-ebpf-module/opensnitch-ebpf-module-1.6.2.ebuild b/app-admin/opensnitch-ebpf-module/opensnitch-ebpf-module-1.6.2.ebuild
new file mode 100644
index 00000000..0a11cc3e
--- /dev/null
+++ b/app-admin/opensnitch-ebpf-module/opensnitch-ebpf-module-1.6.2.ebuild
@@ -0,0 +1,74 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit linux-info
+
+DESCRIPTION="eBPF process monitor module for opensnitch"
+HOMEPAGE="https://github.com/evilsocket/opensnitch"
+# NOTE: app-admin/opensnitch and this ebuild share the same source
+SRC_URI="
+	https://github.com/evilsocket/opensnitch/archive/refs/tags/v${PV}.tar.gz -> opensnitch-${PV}.tar.gz
+"
+S="${WORKDIR}/opensnitch-${PV}"
+EBPF_DIR=ebpf_prog
+
+KEYWORDS="~amd64"
+LICENSE="GPL-3"
+SLOT="0"
+IUSE="dist-kernel"
+
+MINKV=5.5 # only compatible with kernels >= 5.5
+
+RDEPEND="
+	dist-kernel? ( virtual/dist-kernel:= )
+	~app-admin/opensnitch-$PV
+"
+
+DEPEND="
+	virtual/linux-sources
+	>=sys-kernel/linux-headers-${MINKV}
+"
+
+BDEPEND="
+	sys-devel/bc
+	sys-devel/clang
+	sys-devel/llvm
+"
+
+RESTRICT="strip test"
+QA_PREBUILT="*"
+
+pkg_setup() {
+	# see https://github.com/evilsocket/opensnitch/discussions/978
+	local CONFIG_CHECK="
+		CGROUP_BPF
+		BPF_EVENTS
+		FTRACE_SYSCALLS
+		KPROBES_ON_FTRACE
+		KPROBE_EVENTS
+		UPROBE_EVENTS
+	"
+
+	linux-info_pkg_setup
+	kernel_is -ge ${MINKV//./ } || die "Kernel version at least ${MINKV} required"
+}
+
+src_compile() {
+	MODULES_MAKEARGS+=(
+		ARCH="x86"
+		EXTRA_FLAGS="-fno-stack-protector -fcf-protection"
+		KERNEL_DIR="${KV_DIR}"
+		KERNEL_HEADERS=/usr # gentoo installs linux-headers to /usr
+	)
+	emake "${MODULES_MAKEARGS[@]}" -C "$EBPF_DIR" || die
+	llvm-strip -g "$EBPF_DIR"/opensnitch*.o
+}
+
+src_install(){
+	insinto /usr/lib/opensnitchd/ebpf/
+	doins "$EBPF_DIR"/opensnitch.o
+	doins "$EBPF_DIR"/opensnitch-dns.o
+	doins "$EBPF_DIR"/opensnitch-procs.o
+}