111 lines
2.7 KiB
C++
111 lines
2.7 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 "BPF.h"
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#include "catch.hpp"
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 18, 0)
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TEST_CASE("test sock map", "[sockmap]") {
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{
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const std::string BPF_PROGRAM = R"(
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BPF_SOCKMAP(sk_map1, 10);
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BPF_SOCKMAP(sk_map2, 10);
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int test(struct bpf_sock_ops *skops)
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{
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u32 key = 0, val = 0;
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sk_map2.update(&key, &val);
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sk_map2.delete(&key);
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sk_map2.sock_map_update(skops, &key, 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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// create a udp socket so we can do some map operations.
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int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
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REQUIRE(sockfd >= 0);
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auto sk_map = bpf.get_sockmap_table("sk_map1");
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int key = 0, val = sockfd;
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res = sk_map.remove_value(key);
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REQUIRE(!res.ok());
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// the socket must be TCP established socket.
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res = sk_map.update_value(key, val);
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REQUIRE(!res.ok());
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}
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}
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TEST_CASE("test sock hash", "[sockhash]") {
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{
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const std::string BPF_PROGRAM = R"(
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BPF_SOCKHASH(sk_hash1, u32, 10);
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BPF_SOCKHASH(sk_hash2, u32, 10);
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int test(struct bpf_sock_ops *skops)
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{
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u32 key = 0, val = 0;
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struct sk_msg_buff *msg;
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struct sk_buff *skb;
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sk_hash2.update(&key, &val);
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sk_hash2.delete(&key);
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sk_hash2.sock_hash_update(skops, &key, 0);
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sk_hash2.msg_redirect_hash(msg, &key, 0);
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sk_hash2.sk_redirect_hash(skb, &key, 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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// create a udp socket so we can do some map operations.
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int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
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REQUIRE(sockfd >= 0);
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auto sk_hash = bpf.get_sockhash_table("sk_hash1");
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int key = 0, val = sockfd;
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res = sk_hash.remove_value(key);
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REQUIRE(!res.ok());
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// the socket must be TCP established socket.
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res = sk_hash.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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