éclairevoyant
90 lines
2.1 KiB
Nix
90 lines
2.1 KiB
Nix
{
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lib,
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kernel,
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stdenv,
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clang-tools,
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llvmPackages,
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elfutils,
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flex,
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bison,
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bc,
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opensnitch,
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nixosTests,
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fetchpatch2,
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}:
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stdenv.mkDerivation rec {
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pname = "opensnitch_ebpf";
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version = "${opensnitch.version}-${kernel.version}";
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inherit (opensnitch) src;
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patches = [
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(fetchpatch2 {
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# fixes build failures on kernel >= 6.19 (#490127)
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# remove when added to a release
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name = "fix-kernel-6.19-build.patch";
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stripLen = 1;
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url = "https://github.com/evilsocket/opensnitch/commit/614537c92ec82f54f76a45fb406ad2fb6e6fa618.patch?full_index=1";
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hash = "sha256-FCJfDhgmnm1GXPDaxr+YpVWTRrwBvjVzvGdZSFB6SqQ=";
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})
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];
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sourceRoot = "${src.name}/ebpf_prog";
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nativeBuildInputs = with llvmPackages; [
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bc
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bison
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clang
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clang-tools
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elfutils
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flex
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libllvm
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];
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# We set -fno-stack-protector here to work around a clang regression.
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# This is fine - bpf programs do not use stack protectors
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# https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=opensnitch-ebpf-module&id=984b952a784eb701f691dd9f2d45dfeb8d15053b
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env.NIX_CFLAGS_COMPILE = "-fno-stack-protector";
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env.KERNEL_VER = kernel.modDirVersion;
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env.KERNEL_DIR = "${kernel.dev}/lib/modules/${kernel.modDirVersion}/source";
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env.KERNEL_HEADERS = "${kernel.dev}/lib/modules/${kernel.modDirVersion}/build";
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extraConfig = ''
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CONFIG_UPROBE_EVENTS=y
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'';
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installPhase = ''
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runHook preInstall
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for file in opensnitch*.o; do
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install -Dm644 "$file" "$out/etc/opensnitchd/$file"
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done
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runHook postInstall
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'';
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postFixup = ''
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# reduces closure size significantly (fixes https://github.com/NixOS/nixpkgs/issues/391351)
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for file in $out/etc/opensnitchd/*.o; do
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llvm-strip --strip-debug $file
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done
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'';
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passthru.tests = {
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inherit (nixosTests) opensnitch;
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};
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meta = {
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description = "eBPF process monitor module for OpenSnitch";
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homepage = "https://github.com/evilsocket/opensnitch";
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license = lib.licenses.gpl3Only;
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maintainers = with lib.maintainers; [
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onny
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grimmauld
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];
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platforms = lib.platforms.linux;
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};
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}
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