AdGuardHome/internal/dhcpd/v4_test.go
Ainar Garipov fa33568fab Pull request: all: imp errcheck in tests
Merge in DNS/adguard-home from imp-errcheck to master

Squashed commit of the following:

commit ed046b8ef59a092a27c623cd14b3fc2ef305fc3d
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Thu Feb 4 15:00:04 2021 +0300

    stats: imp cleanup more

commit e53a9240d3e3eec2417c768b98c267a8cd54d992
Merge: da734317 676f8c76
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Thu Feb 4 14:59:40 2021 +0300

    Merge branch 'master' into imp-errcheck

commit da734317035543b52e5a9030813084bdc92ba90a
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Thu Feb 4 14:37:26 2021 +0300

    stats: imp cleanup

commit 8b4ad150129111a09be6fa2944a21bd06ab8e5a1
Merge: 385c8a6c 5081ead0
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Thu Feb 4 14:34:26 2021 +0300

    Merge branch 'master' into imp-errcheck

commit 385c8a6c91e3bf07a457da370c8cc77820b91600
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Fri Jan 29 20:41:57 2021 +0300

    all: imp errcheck in tests
2021-02-04 15:12:34 +03:00

242 lines
7.6 KiB
Go

// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
package dhcpd
import (
"net"
"testing"
"github.com/insomniacslk/dhcp/dhcpv4"
"github.com/stretchr/testify/assert"
)
func notify4(flags uint32) {
}
func TestV4StaticLeaseAddRemove(t *testing.T) {
conf := V4ServerConf{
Enabled: true,
RangeStart: net.IP{192, 168, 10, 100},
RangeEnd: net.IP{192, 168, 10, 200},
GatewayIP: net.IP{192, 168, 10, 1},
SubnetMask: net.IP{255, 255, 255, 0},
notify: notify4,
}
s, err := v4Create(conf)
assert.Nil(t, err)
ls := s.GetLeases(LeasesStatic)
assert.Empty(t, ls)
// add static lease
l := Lease{}
l.IP = net.IP{192, 168, 10, 150}
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.Nil(t, s.AddStaticLease(l))
// try to add the same static lease - fail
assert.NotNil(t, s.AddStaticLease(l))
// check
ls = s.GetLeases(LeasesStatic)
assert.Len(t, ls, 1)
assert.True(t, net.IP{192, 168, 10, 150}.Equal(ls[0].IP))
assert.Equal(t, "aa:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
assert.EqualValues(t, leaseExpireStatic, ls[0].Expiry.Unix())
// try to remove static lease - fail
l.IP = net.IP{192, 168, 10, 110}
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.NotNil(t, s.RemoveStaticLease(l))
// remove static lease
l.IP = net.IP{192, 168, 10, 150}
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.Nil(t, s.RemoveStaticLease(l))
// check
ls = s.GetLeases(LeasesStatic)
assert.Empty(t, ls)
}
func TestV4StaticLeaseAddReplaceDynamic(t *testing.T) {
conf := V4ServerConf{
Enabled: true,
RangeStart: net.IP{192, 168, 10, 100},
RangeEnd: net.IP{192, 168, 10, 200},
GatewayIP: net.IP{192, 168, 10, 1},
SubnetMask: net.IP{255, 255, 255, 0},
notify: notify4,
}
sIface, err := v4Create(conf)
s, ok := sIface.(*v4Server)
assert.True(t, ok)
assert.Nil(t, err)
// add dynamic lease
ld := Lease{}
ld.IP = net.IP{192, 168, 10, 150}
ld.HWAddr, _ = net.ParseMAC("11:aa:aa:aa:aa:aa")
s.addLease(&ld)
// add dynamic lease
{
ld := Lease{}
ld.IP = net.IP{192, 168, 10, 151}
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.IP{192, 168, 10, 150}
l.HWAddr, _ = net.ParseMAC("33:aa:aa:aa:aa:aa")
assert.Nil(t, s.AddStaticLease(l))
// add static lease with the same MAC
l = Lease{}
l.IP = net.IP{192, 168, 10, 152}
l.HWAddr, _ = net.ParseMAC("22:aa:aa:aa:aa:aa")
assert.Nil(t, s.AddStaticLease(l))
// check
ls := s.GetLeases(LeasesStatic)
assert.Len(t, ls, 2)
assert.True(t, net.IP{192, 168, 10, 150}.Equal(ls[0].IP))
assert.Equal(t, "33:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
assert.EqualValues(t, leaseExpireStatic, ls[0].Expiry.Unix())
assert.True(t, net.IP{192, 168, 10, 152}.Equal(ls[1].IP))
assert.Equal(t, "22:aa:aa:aa:aa:aa", ls[1].HWAddr.String())
assert.EqualValues(t, leaseExpireStatic, ls[1].Expiry.Unix())
}
func TestV4StaticLeaseGet(t *testing.T) {
conf := V4ServerConf{
Enabled: true,
RangeStart: net.IP{192, 168, 10, 100},
RangeEnd: net.IP{192, 168, 10, 200},
GatewayIP: net.IP{192, 168, 10, 1},
SubnetMask: net.IP{255, 255, 255, 0},
notify: notify4,
}
sIface, err := v4Create(conf)
s, ok := sIface.(*v4Server)
assert.True(t, ok)
assert.Nil(t, err)
s.conf.dnsIPAddrs = []net.IP{{192, 168, 10, 1}}
l := Lease{}
l.IP = net.IP{192, 168, 10, 150}
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.Nil(t, s.AddStaticLease(l))
// "Discover"
mac, _ := net.ParseMAC("aa:aa:aa:aa:aa:aa")
req, _ := dhcpv4.NewDiscovery(mac)
resp, _ := dhcpv4.NewReplyFromRequest(req)
assert.Equal(t, 1, s.process(req, resp))
// check "Offer"
assert.Equal(t, dhcpv4.MessageTypeOffer, resp.MessageType())
assert.Equal(t, "aa:aa:aa:aa:aa:aa", resp.ClientHWAddr.String())
assert.True(t, net.IP{192, 168, 10, 150}.Equal(resp.YourIPAddr))
assert.True(t, net.IP{192, 168, 10, 1}.Equal(resp.Router()[0]))
assert.True(t, net.IP{192, 168, 10, 1}.Equal(resp.ServerIdentifier()))
assert.True(t, net.IP{255, 255, 255, 0}.Equal(net.IP(resp.SubnetMask())))
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
// "Request"
req, _ = dhcpv4.NewRequestFromOffer(resp)
resp, _ = dhcpv4.NewReplyFromRequest(req)
assert.Equal(t, 1, s.process(req, resp))
// check "Ack"
assert.Equal(t, dhcpv4.MessageTypeAck, resp.MessageType())
assert.Equal(t, "aa:aa:aa:aa:aa:aa", resp.ClientHWAddr.String())
assert.True(t, net.IP{192, 168, 10, 150}.Equal(resp.YourIPAddr))
assert.True(t, net.IP{192, 168, 10, 1}.Equal(resp.Router()[0]))
assert.True(t, net.IP{192, 168, 10, 1}.Equal(resp.ServerIdentifier()))
assert.True(t, net.IP{255, 255, 255, 0}.Equal(net.IP(resp.SubnetMask())))
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
dnsAddrs := resp.DNS()
assert.Len(t, dnsAddrs, 1)
assert.True(t, net.IP{192, 168, 10, 1}.Equal(dnsAddrs[0]))
// check lease
ls := s.GetLeases(LeasesStatic)
assert.Len(t, ls, 1)
assert.True(t, net.IP{192, 168, 10, 150}.Equal(ls[0].IP))
assert.Equal(t, "aa:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
}
func TestV4DynamicLeaseGet(t *testing.T) {
conf := V4ServerConf{
Enabled: true,
RangeStart: net.IP{192, 168, 10, 100},
RangeEnd: net.IP{192, 168, 10, 200},
GatewayIP: net.IP{192, 168, 10, 1},
SubnetMask: net.IP{255, 255, 255, 0},
notify: notify4,
Options: []string{
"81 hex 303132",
"82 ip 1.2.3.4",
},
}
sIface, err := v4Create(conf)
s, ok := sIface.(*v4Server)
assert.True(t, ok)
assert.Nil(t, err)
s.conf.dnsIPAddrs = []net.IP{{192, 168, 10, 1}}
// "Discover"
mac, _ := net.ParseMAC("aa:aa:aa:aa:aa:aa")
req, _ := dhcpv4.NewDiscovery(mac)
resp, _ := dhcpv4.NewReplyFromRequest(req)
assert.Equal(t, 1, s.process(req, resp))
// check "Offer"
assert.Equal(t, dhcpv4.MessageTypeOffer, resp.MessageType())
assert.Equal(t, "aa:aa:aa:aa:aa:aa", resp.ClientHWAddr.String())
assert.True(t, net.IP{192, 168, 10, 100}.Equal(resp.YourIPAddr))
assert.True(t, net.IP{192, 168, 10, 1}.Equal(resp.Router()[0]))
assert.True(t, net.IP{192, 168, 10, 1}.Equal(resp.ServerIdentifier()))
assert.True(t, net.IP{255, 255, 255, 0}.Equal(net.IP(resp.SubnetMask())))
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
assert.Equal(t, []byte("012"), resp.Options[uint8(dhcpv4.OptionFQDN)])
assert.True(t, net.IP{1, 2, 3, 4}.Equal(net.IP(resp.Options[uint8(dhcpv4.OptionRelayAgentInformation)])))
// "Request"
req, _ = dhcpv4.NewRequestFromOffer(resp)
resp, _ = dhcpv4.NewReplyFromRequest(req)
assert.Equal(t, 1, s.process(req, resp))
// check "Ack"
assert.Equal(t, dhcpv4.MessageTypeAck, resp.MessageType())
assert.Equal(t, "aa:aa:aa:aa:aa:aa", resp.ClientHWAddr.String())
assert.True(t, net.IP{192, 168, 10, 100}.Equal(resp.YourIPAddr))
assert.True(t, net.IP{192, 168, 10, 1}.Equal(resp.Router()[0]))
assert.True(t, net.IP{192, 168, 10, 1}.Equal(resp.ServerIdentifier()))
assert.True(t, net.IP{255, 255, 255, 0}.Equal(net.IP(resp.SubnetMask())))
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
dnsAddrs := resp.DNS()
assert.Len(t, dnsAddrs, 1)
assert.True(t, net.IP{192, 168, 10, 1}.Equal(dnsAddrs[0]))
// check lease
ls := s.GetLeases(LeasesDynamic)
assert.Len(t, ls, 1)
assert.True(t, net.IP{192, 168, 10, 100}.Equal(ls[0].IP))
assert.Equal(t, "aa:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
start := net.IP{192, 168, 10, 100}
stop := net.IP{192, 168, 10, 200}
assert.False(t, ip4InRange(start, stop, net.IP{192, 168, 10, 99}))
assert.False(t, ip4InRange(start, stop, net.IP{192, 168, 11, 100}))
assert.False(t, ip4InRange(start, stop, net.IP{192, 168, 11, 201}))
assert.True(t, ip4InRange(start, stop, net.IP{192, 168, 10, 100}))
}