router7/internal/dhcp6/dhcp6_test.go
2018-10-22 21:04:35 +02:00

86 lines
2.1 KiB
Go

// Copyright 2018 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package dhcp6
import (
"net"
"os"
"path/filepath"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/rtr7/router7/internal/testing/pcapreplayer"
)
func TestDHCP6(t *testing.T) {
pcappath := os.Getenv("ROUTER7_PCAP_DIR")
if pcappath != "" {
pcappath = filepath.Join(pcappath, "dhcp6.pcap")
}
conn, err := pcapreplayer.NewPacketConn("testdata/fiber7.pcap", pcappath)
if err != nil {
t.Fatal(err)
}
defer conn.Close()
laddr, err := net.ResolveUDPAddr("udp6", "[fe80::42:aff:fea5:966e]:546")
if err != nil {
t.Fatal(err)
}
now := time.Now()
c, err := NewClient(ClientConfig{
// NOTE(stapelberg): dhcpv6.NewSolicitForInterface requires an interface
// name to get the MAC address.
InterfaceName: "lo",
LocalAddr: laddr,
Conn: conn,
TransactionIDs: []uint32{
0x48e59e, // SOLICIT
0x738c3b, // REQUEST
},
})
if err != nil {
t.Fatal(err)
}
c.timeNow = func() time.Time { return now }
c.ObtainOrRenew()
if err := c.Err(); err != nil {
t.Fatalf("unexpected error: %v", err)
}
got := c.Config()
want := Config{
RenewAfter: now.Add(20 * time.Minute),
Prefixes: []net.IPNet{
mustParseCIDR("2a02:168:4a00::/48"),
},
DNS: []string{
"2001:1620:2777:1::10",
"2001:1620:2777:2::20",
},
}
if diff := cmp.Diff(got, want); diff != "" {
t.Fatalf("unexpected config: diff (-got +want):\n%s", diff)
}
}
func mustParseCIDR(s string) net.IPNet {
_, net, err := net.ParseCIDR(s)
if err != nil {
panic(err)
}
return *net
}