69 lines
2.2 KiB
Go
69 lines
2.2 KiB
Go
// Copyright 2020 The gVisor Authors.
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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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package fin_wait2_timeout_test
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import (
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"testing"
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"time"
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"golang.org/x/sys/unix"
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"gvisor.dev/gvisor/pkg/tcpip/header"
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tb "gvisor.dev/gvisor/test/packetimpact/testbench"
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)
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func TestFinWait2Timeout(t *testing.T) {
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for _, tt := range []struct {
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description string
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linger2 bool
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}{
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{"WithLinger2", true},
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{"WithoutLinger2", false},
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} {
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t.Run(tt.description, func(t *testing.T) {
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dut := tb.NewDUT(t)
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defer dut.TearDown()
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listenFd, remotePort := dut.CreateListener(unix.SOCK_STREAM, unix.IPPROTO_TCP, 1)
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defer dut.Close(listenFd)
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conn := tb.NewTCPIPv4(t, tb.TCP{DstPort: &remotePort}, tb.TCP{SrcPort: &remotePort})
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defer conn.Close()
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conn.Handshake()
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acceptFd, _ := dut.Accept(listenFd)
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if tt.linger2 {
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tv := unix.Timeval{Sec: 1, Usec: 0}
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dut.SetSockOptTimeval(acceptFd, unix.SOL_TCP, unix.TCP_LINGER2, &tv)
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}
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dut.Close(acceptFd)
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if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagFin | header.TCPFlagAck)}, time.Second); err != nil {
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t.Fatalf("expected a FIN-ACK within 1 second but got none: %s", err)
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}
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conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)})
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time.Sleep(5 * time.Second)
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conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)})
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if tt.linger2 {
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if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagRst)}, time.Second); err != nil {
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t.Fatalf("expected a RST packet within a second but got none: %s", err)
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}
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} else {
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if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagRst)}, 10*time.Second); err == nil {
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t.Fatalf("expected no RST packets within ten seconds but got one: %s", err)
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}
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}
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})
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}
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}
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