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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
*/
#include <benchmark/benchmark.h>
#include <cerrno>
#include <cstring>
#include <exception>
#include <format>
#include <span>
#include <unistd.h>
#include "benchmark.hpp"
namespace
{
void loadChainLargeSet(::benchmark::State &state)
{
::bf::Chain chain(::bf::config.bfcli);
chain.insertRuleIPv4Set(state.range(0));
for (auto _: state) {
chain.apply();
}
}
BENCHMARK(loadChainLargeSet)
->Arg(10000)
->Arg(100000)
->Arg(200000)
->Arg(500000)
->Iterations(10)
->Unit(benchmark::kMillisecond);
void firstRuleDropCounter(::benchmark::State &state)
{
::bf::Chain chain(::bf::config.bfcli);
chain << "rule meta.l3_proto ipv6 counter DROP";
chain.apply();
auto prog = chain.getProgram();
benchLoop(state)
{
if (prog.run(::bf::CGROUP_DROP, ::bf::pkt_local_ip6_tcp) < 0)
state.SkipWithError("benchmark run failed");
}
state.counters["nInsn"] = prog.nInsn();
}
BENCHMARK(firstRuleDropCounter);
void dropAfterXRules(::benchmark::State &state)
{
::bf::Chain chain(::bf::config.bfcli);
for (int i = 0; i < state.range(0); ++i)
chain << std::format("rule meta.dport {} counter ACCEPT", i + 1);
chain.apply();
auto prog = chain.getProgram();
benchLoop(state)
{
if (prog.run(::bf::CGROUP_DROP, ::bf::pkt_local_ip6_tcp) < 0)
state.SkipWithError("benchmark run failed");
}
state.counters["nInsn"] = prog.nInsn();
}
BENCHMARK(dropAfterXRules)
->Arg(8)
->Arg(32)
->Arg(128)
->Arg(512)
->Arg(2048);
} // namespace
void adhocBenchmark(::benchmark::State &state, const ::std::string &ruleset)
{
::bf::Chain chain(::bf::config.bfcli);
chain.repeat(ruleset, ::bf::config.adhocRepeat);
chain.apply();
auto prog = chain.getProgram();
benchLoop(state)
{
if (prog.run(::bf::CGROUP_DROP, ::bf::pkt_local_ip6_tcp) < 0)
state.SkipWithError("benchmark run failed");
}
state.counters["nInsn"] = prog.nInsn();
}
int main(int argc, char *argv[])
{
if (geteuid() != 0) {
err("the benchmark should be run as root");
return -EPERM;
}
if (::bf::disableASLR(argv) < 0)
return -1;
if (::bf::setup(std::span<char *>(argv, argc)) < 0)
return -1;
::benchmark::Initialize(&argc, argv, nullptr);
if (!::bf::config.adhoc)
::bf::restorePermissions(::bf::config.outfile);
if (::bf::config.adhoc) {
::benchmark::RegisterBenchmark("bf_adhoc", adhocBenchmark,
*::bf::config.adhoc);
}
try {
if (::bf::config.runDaemon) {
auto daemon = bf::Daemon(
::bf::config.bpfilter,
bf::Daemon::Options().transient().noIptables().noNftables());
::benchmark::RunSpecifiedBenchmarks();
} else {
::benchmark::RunSpecifiedBenchmarks();
}
} catch (const ::std::exception &e) {
err("failed to run benchmark: {}", e.what());
return -1;
}
::benchmark::Shutdown();
return 0;
}
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