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76 lines
2.3 KiB
76 lines
2.3 KiB
/*
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* Copyright (c) 2018 Politecnico di Torino
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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 "BPF.h"
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#include "catch.hpp"
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const std::string BPF_PROGRAM1 = R"(
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BPF_TABLE_SHARED("array", int, int, mysharedtable, 1024);
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)";
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const std::string BPF_PROGRAM2 = R"(
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BPF_TABLE("extern", int, int, mysharedtable, 1024);
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)";
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TEST_CASE("test shared table", "[shared_table]") {
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// deploy 4 ebpf programs: _ns1_a and _ns1_b are in ns1, _ns2_a and _ns2_b in ns2
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ebpf::BPF bpf_ns1_a(0, nullptr, false, "ns1");
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ebpf::BPF bpf_ns1_b(0, nullptr, false, "ns1");
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ebpf::BPF bpf_ns2_a(0, nullptr, false, "ns2");
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ebpf::BPF bpf_ns2_b(0, nullptr, false, "ns2");
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ebpf::StatusTuple res(0);
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res = bpf_ns1_a.init(BPF_PROGRAM1);
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REQUIRE(res.code() == 0);
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res = bpf_ns1_b.init(BPF_PROGRAM2);
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REQUIRE(res.code() == 0);
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res = bpf_ns2_a.init(BPF_PROGRAM1);
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REQUIRE(res.code() == 0);
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res = bpf_ns2_b.init(BPF_PROGRAM2);
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REQUIRE(res.code() == 0);
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// get references to all tables
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ebpf::BPFArrayTable<int> t_ns1_a = bpf_ns1_a.get_array_table<int>("mysharedtable");
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ebpf::BPFArrayTable<int> t_ns1_b = bpf_ns1_b.get_array_table<int>("mysharedtable");
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ebpf::BPFArrayTable<int> t_ns2_a = bpf_ns2_a.get_array_table<int>("mysharedtable");
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ebpf::BPFArrayTable<int> t_ns2_b = bpf_ns2_b.get_array_table<int>("mysharedtable");
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// test that tables within the same ns are shared
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int v1, v2, v3;
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res = t_ns1_a.update_value(13, 42);
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REQUIRE(res.code() == 0);
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res = t_ns1_b.get_value(13, v1);
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REQUIRE(res.code() == 0);
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REQUIRE(v1 == 42);
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// test that tables are isolated within different ns
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res = t_ns2_a.update_value(13, 69);
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REQUIRE(res.code() == 0);
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res = t_ns2_b.get_value(13, v2);
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REQUIRE(res.code() == 0);
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REQUIRE(v2 == 69);
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res = t_ns1_b.get_value(13, v3);
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REQUIRE(res.code() == 0);
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REQUIRE(v3 == 42); // value should still be 42
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}
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