AdGuardHome/internal/dhcpd/v6_test.go
Ainar Garipov a6e18c4700 Pull request: dhcpd: wait for interfaces' ip addresses to appear
Merge in DNS/adguard-home from 2304-dncp-backoff to master

Updates #2304.

Squashed commit of the following:

commit c9bff8b27c6b031d43a7dd98152adcde7f49fff1
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Fri Nov 27 14:08:03 2020 +0300

    dhcpd: try for 5s instead of 10s

commit 983cf471832de0e7762b8b6e0a4ba9bb76ecadfc
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Wed Nov 25 19:58:41 2020 +0300

    dhcpd: wait for interfaces' ip addresses to appear
2020-11-27 14:39:43 +03:00

226 lines
6.3 KiB
Go

// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
package dhcpd
import (
"net"
"testing"
"github.com/insomniacslk/dhcp/dhcpv6"
"github.com/insomniacslk/dhcp/iana"
"github.com/stretchr/testify/assert"
)
func notify6(flags uint32) {
}
func TestV6StaticLeaseAddRemove(t *testing.T) {
conf := V6ServerConf{
Enabled: true,
RangeStart: "2001::1",
notify: notify6,
}
s, err := v6Create(conf)
assert.True(t, err == nil)
ls := s.GetLeases(LeasesStatic)
assert.Equal(t, 0, len(ls))
// add static lease
l := Lease{}
l.IP = net.ParseIP("2001::1")
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.True(t, s.AddStaticLease(l) == nil)
// try to add static lease - fail
assert.True(t, s.AddStaticLease(l) != nil)
// check
ls = s.GetLeases(LeasesStatic)
assert.Equal(t, 1, len(ls))
assert.Equal(t, "2001::1", ls[0].IP.String())
assert.Equal(t, "aa:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
assert.True(t, ls[0].Expiry.Unix() == leaseExpireStatic)
// try to remove static lease - fail
l.IP = net.ParseIP("2001::2")
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.True(t, s.RemoveStaticLease(l) != nil)
// remove static lease
l.IP = net.ParseIP("2001::1")
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.True(t, s.RemoveStaticLease(l) == nil)
// check
ls = s.GetLeases(LeasesStatic)
assert.Equal(t, 0, len(ls))
}
func TestV6StaticLeaseAddReplaceDynamic(t *testing.T) {
conf := V6ServerConf{
Enabled: true,
RangeStart: "2001::1",
notify: notify6,
}
sIface, err := v6Create(conf)
s := sIface.(*v6Server)
assert.True(t, err == nil)
// add dynamic lease
ld := Lease{}
ld.IP = net.ParseIP("2001::1")
ld.HWAddr, _ = net.ParseMAC("11:aa:aa:aa:aa:aa")
s.addLease(&ld)
// add dynamic lease
{
ld := Lease{}
ld.IP = net.ParseIP("2001::2")
ld.HWAddr, _ = net.ParseMAC("22:aa:aa:aa:aa:aa")
s.addLease(&ld)
}
// add static lease with the same IP
l := Lease{}
l.IP = net.ParseIP("2001::1")
l.HWAddr, _ = net.ParseMAC("33:aa:aa:aa:aa:aa")
assert.True(t, s.AddStaticLease(l) == nil)
// add static lease with the same MAC
l = Lease{}
l.IP = net.ParseIP("2001::3")
l.HWAddr, _ = net.ParseMAC("22:aa:aa:aa:aa:aa")
assert.True(t, s.AddStaticLease(l) == nil)
// check
ls := s.GetLeases(LeasesStatic)
assert.Equal(t, 2, len(ls))
assert.Equal(t, "2001::1", ls[0].IP.String())
assert.Equal(t, "33:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
assert.True(t, ls[0].Expiry.Unix() == leaseExpireStatic)
assert.Equal(t, "2001::3", ls[1].IP.String())
assert.Equal(t, "22:aa:aa:aa:aa:aa", ls[1].HWAddr.String())
assert.True(t, ls[1].Expiry.Unix() == leaseExpireStatic)
}
func TestV6GetLease(t *testing.T) {
conf := V6ServerConf{
Enabled: true,
RangeStart: "2001::1",
notify: notify6,
}
sIface, err := v6Create(conf)
s := sIface.(*v6Server)
assert.True(t, err == nil)
s.conf.dnsIPAddrs = []net.IP{net.ParseIP("2000::1")}
s.sid = dhcpv6.Duid{
Type: dhcpv6.DUID_LLT,
HwType: iana.HWTypeEthernet,
}
s.sid.LinkLayerAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
l := Lease{}
l.IP = net.ParseIP("2001::1")
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.True(t, s.AddStaticLease(l) == nil)
// "Solicit"
mac, _ := net.ParseMAC("aa:aa:aa:aa:aa:aa")
req, _ := dhcpv6.NewSolicit(mac)
msg, _ := req.GetInnerMessage()
resp, _ := dhcpv6.NewAdvertiseFromSolicit(msg)
assert.True(t, s.process(msg, req, resp))
resp.AddOption(dhcpv6.OptServerID(s.sid))
// check "Advertise"
assert.Equal(t, dhcpv6.MessageTypeAdvertise, resp.Type())
oia := resp.Options.OneIANA()
oiaAddr := oia.Options.OneAddress()
assert.Equal(t, "2001::1", oiaAddr.IPv6Addr.String())
assert.Equal(t, s.conf.leaseTime.Seconds(), oiaAddr.ValidLifetime.Seconds())
// "Request"
req, _ = dhcpv6.NewRequestFromAdvertise(resp)
msg, _ = req.GetInnerMessage()
resp, _ = dhcpv6.NewReplyFromMessage(msg)
assert.True(t, s.process(msg, req, resp))
// check "Reply"
assert.Equal(t, dhcpv6.MessageTypeReply, resp.Type())
oia = resp.Options.OneIANA()
oiaAddr = oia.Options.OneAddress()
assert.Equal(t, "2001::1", oiaAddr.IPv6Addr.String())
assert.Equal(t, s.conf.leaseTime.Seconds(), oiaAddr.ValidLifetime.Seconds())
dnsAddrs := resp.Options.DNS()
assert.Equal(t, 1, len(dnsAddrs))
assert.Equal(t, "2000::1", dnsAddrs[0].String())
// check lease
ls := s.GetLeases(LeasesStatic)
assert.Equal(t, 1, len(ls))
assert.Equal(t, "2001::1", ls[0].IP.String())
assert.Equal(t, "aa:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
}
func TestV6GetDynamicLease(t *testing.T) {
conf := V6ServerConf{
Enabled: true,
RangeStart: "2001::2",
notify: notify6,
}
sIface, err := v6Create(conf)
s := sIface.(*v6Server)
assert.True(t, err == nil)
s.conf.dnsIPAddrs = []net.IP{net.ParseIP("2000::1")}
s.sid = dhcpv6.Duid{
Type: dhcpv6.DUID_LLT,
HwType: iana.HWTypeEthernet,
}
s.sid.LinkLayerAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
// "Solicit"
mac, _ := net.ParseMAC("aa:aa:aa:aa:aa:aa")
req, _ := dhcpv6.NewSolicit(mac)
msg, _ := req.GetInnerMessage()
resp, _ := dhcpv6.NewAdvertiseFromSolicit(msg)
assert.True(t, s.process(msg, req, resp))
resp.AddOption(dhcpv6.OptServerID(s.sid))
// check "Advertise"
assert.Equal(t, dhcpv6.MessageTypeAdvertise, resp.Type())
oia := resp.Options.OneIANA()
oiaAddr := oia.Options.OneAddress()
assert.Equal(t, "2001::2", oiaAddr.IPv6Addr.String())
// "Request"
req, _ = dhcpv6.NewRequestFromAdvertise(resp)
msg, _ = req.GetInnerMessage()
resp, _ = dhcpv6.NewReplyFromMessage(msg)
assert.True(t, s.process(msg, req, resp))
// check "Reply"
assert.Equal(t, dhcpv6.MessageTypeReply, resp.Type())
oia = resp.Options.OneIANA()
oiaAddr = oia.Options.OneAddress()
assert.Equal(t, "2001::2", oiaAddr.IPv6Addr.String())
dnsAddrs := resp.Options.DNS()
assert.Equal(t, 1, len(dnsAddrs))
assert.Equal(t, "2000::1", dnsAddrs[0].String())
// check lease
ls := s.GetLeases(LeasesDynamic)
assert.Equal(t, 1, len(ls))
assert.Equal(t, "2001::2", ls[0].IP.String())
assert.Equal(t, "aa:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
assert.True(t, !ip6InRange(net.ParseIP("2001::2"), net.ParseIP("2001::1")))
assert.True(t, !ip6InRange(net.ParseIP("2001::2"), net.ParseIP("2002::2")))
assert.True(t, ip6InRange(net.ParseIP("2001::2"), net.ParseIP("2001::2")))
assert.True(t, ip6InRange(net.ParseIP("2001::2"), net.ParseIP("2001::3")))
}