114 lines
2.9 KiB
Go
114 lines
2.9 KiB
Go
// Copyright 2018 Google 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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package dhcp6
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import (
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"net"
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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"github.com/insomniacslk/dhcp/dhcpv6"
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"github.com/rtr7/router7/internal/testing/pcapreplayer"
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)
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func TestDHCP6(t *testing.T) {
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for _, tt := range []struct {
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CaptureFile string
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SolicitTID dhcpv6.TransactionID
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RequestTID dhcpv6.TransactionID
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Prefix net.IPNet
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Expiry time.Duration
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}{
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{
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CaptureFile: "fiber7.pcap",
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SolicitTID: dhcpv6.TransactionID{0x48, 0xe5, 0x9e},
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RequestTID: dhcpv6.TransactionID{0x73, 0x8c, 0x3b},
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Prefix: mustParseCIDR("2a02:168:4a00::/48"),
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Expiry: 20 * time.Minute,
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},
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{
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CaptureFile: "fiber7-2019-12-02.pcap",
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SolicitTID: dhcpv6.TransactionID{0x49, 0xb4, 0x8c},
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RequestTID: dhcpv6.TransactionID{0x49, 0xb4, 0x8c},
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Prefix: mustParseCIDR("2a02:168:4bf3::/48"),
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Expiry: 1000 * time.Second,
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},
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} {
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t.Run(tt.CaptureFile, func(t *testing.T) {
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pcappath := os.Getenv("ROUTER7_PCAP_DIR")
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if pcappath != "" {
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pcappath = filepath.Join(pcappath, "dhcp6.pcap")
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}
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conn, err := pcapreplayer.NewPacketConn("testdata/"+tt.CaptureFile, pcappath)
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if err != nil {
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t.Fatal(err)
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}
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defer conn.Close()
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laddr, err := net.ResolveUDPAddr("udp6", "[fe80::42:aff:fea5:966e]:546")
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if err != nil {
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t.Fatal(err)
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}
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now := time.Now()
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c, err := NewClient(ClientConfig{
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// NOTE(stapelberg): dhcpv6.NewSolicitForInterface requires an interface
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// name to get the MAC address.
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InterfaceName: "lo",
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LocalAddr: laddr,
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Conn: conn,
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TransactionIDs: []dhcpv6.TransactionID{
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tt.SolicitTID,
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tt.RequestTID,
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},
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HardwareAddr: []byte{0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66},
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})
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if err != nil {
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t.Fatal(err)
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}
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c.timeNow = func() time.Time { return now }
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c.ObtainOrRenew()
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if err := c.Err(); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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got := c.Config()
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want := Config{
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RenewAfter: now.Add(tt.Expiry),
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Prefixes: []net.IPNet{
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tt.Prefix,
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},
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DNS: []string{
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"2001:1620:2777:1::10",
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"2001:1620:2777:2::20",
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},
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}
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if diff := cmp.Diff(want, got); diff != "" {
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t.Fatalf("unexpected config: diff (-want +got):\n%s", diff)
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}
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})
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}
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}
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func mustParseCIDR(s string) net.IPNet {
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_, net, err := net.ParseCIDR(s)
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if err != nil {
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panic(err)
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}
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return *net
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}
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