107 lines
2.8 KiB
C++
107 lines
2.8 KiB
C++
/*
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* Copyright (c) 2020 Facebook, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <linux/version.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <string>
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#include <vector>
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#include "BPF.h"
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#include "catch.hpp"
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0)
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TEST_CASE("test cgroup storage", "[cgroup_storage]") {
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{
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const std::string BPF_PROGRAM = R"(
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BPF_CGROUP_STORAGE(cg_storage1, int);
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BPF_CGROUP_STORAGE(cg_storage2, int);
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int test(struct bpf_sock_ops *skops)
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{
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struct bpf_cgroup_storage_key key = {0};
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u32 val = 0;
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cg_storage2.lookup(&key);
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cg_storage2.update(&key, &val);
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cg_storage2.get_local_storage(0);
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return 0;
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}
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)";
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// make sure program is loaded successfully
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ebpf::BPF bpf;
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ebpf::StatusTuple res(0);
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res = bpf.init(BPF_PROGRAM);
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REQUIRE(res.ok());
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auto cg_storage = bpf.get_cg_storage_table<int>("cg_storage1");
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struct bpf_cgroup_storage_key key = {0};
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int val;
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// all the following lookup/update will fail since
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// cgroup local storage only created during prog attachment time.
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res = cg_storage.get_value(key, val);
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REQUIRE(!res.ok());
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res = cg_storage.update_value(key, val);
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REQUIRE(!res.ok());
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}
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}
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#endif
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
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TEST_CASE("test percpu cgroup storage", "[percpu_cgroup_storage]") {
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{
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const std::string BPF_PROGRAM = R"(
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BPF_PERCPU_CGROUP_STORAGE(cg_storage1, long long);
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BPF_PERCPU_CGROUP_STORAGE(cg_storage2, long long);
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int test(struct bpf_sock_ops *skops)
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{
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struct bpf_cgroup_storage_key key = {0};
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long long val = 0;
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cg_storage2.lookup(&key);
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cg_storage2.update(&key, &val);
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cg_storage2.get_local_storage(0);
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return 0;
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}
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)";
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// make sure program is loaded successfully
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ebpf::BPF bpf;
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ebpf::StatusTuple res(0);
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res = bpf.init(BPF_PROGRAM);
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REQUIRE(res.ok());
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auto cg_storage = bpf.get_percpu_cg_storage_table<long long>("cg_storage1");
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struct bpf_cgroup_storage_key key = {0};
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std::vector<long long> val(ebpf::BPFTable::get_possible_cpu_count());
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// all the following lookup/update will fail since
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// cgroup local storage only created during prog attachment time.
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res = cg_storage.get_value(key, val);
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REQUIRE(!res.ok());
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res = cg_storage.update_value(key, val);
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REQUIRE(!res.ok());
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}
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}
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#endif
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