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AdGuardHome/internal/dhcpd/v4_test.go
Ainar Garipov ae8de95d89 Pull request: * all: move internal Go packages to internal/ 
Merge in DNS/adguard-home from 2234-move-to-internal to master

Squashed commit of the following:

commit d26a288cabeac86f9483fab307677b1027c78524
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Oct 30 12:44:18 2020 +0300

    * all: move internal Go packages to internal/

    Closes #2234.
2020-10-30 13:32:02 +03:00

239 lines
7.6 KiB
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// +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: "192.168.10.100",
RangeEnd: "192.168.10.200",
GatewayIP: "192.168.10.1",
SubnetMask: "255.255.255.0",
notify: notify4,
}
s, err := v4Create(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("192.168.10.150").To4()
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.True(t, s.AddStaticLease(l) == nil)
// try to add the same static lease - fail
assert.True(t, s.AddStaticLease(l) != nil)
// check
ls = s.GetLeases(LeasesStatic)
assert.Equal(t, 1, len(ls))
assert.Equal(t, "192.168.10.150", 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("192.168.10.110").To4()
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.True(t, s.RemoveStaticLease(l) != nil)
// remove static lease
l.IP = net.ParseIP("192.168.10.150").To4()
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 TestV4StaticLeaseAddReplaceDynamic(t *testing.T) {
conf := V4ServerConf{
Enabled: true,
RangeStart: "192.168.10.100",
RangeEnd: "192.168.10.200",
GatewayIP: "192.168.10.1",
SubnetMask: "255.255.255.0",
notify: notify4,
}
sIface, err := v4Create(conf)
s := sIface.(*v4Server)
assert.True(t, err == nil)
// add dynamic lease
ld := Lease{}
ld.IP = net.ParseIP("192.168.10.150").To4()
ld.HWAddr, _ = net.ParseMAC("11:aa:aa:aa:aa:aa")
s.addLease(&ld)
// add dynamic lease
{
ld := Lease{}
ld.IP = net.ParseIP("192.168.10.151").To4()
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("192.168.10.150").To4()
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("192.168.10.152").To4()
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, "192.168.10.150", 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, "192.168.10.152", 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 TestV4StaticLeaseGet(t *testing.T) {
conf := V4ServerConf{
Enabled: true,
RangeStart: "192.168.10.100",
RangeEnd: "192.168.10.200",
GatewayIP: "192.168.10.1",
SubnetMask: "255.255.255.0",
notify: notify4,
}
sIface, err := v4Create(conf)
s := sIface.(*v4Server)
assert.True(t, err == nil)
s.conf.dnsIPAddrs = []net.IP{net.ParseIP("192.168.10.1").To4()}
l := Lease{}
l.IP = net.ParseIP("192.168.10.150").To4()
l.HWAddr, _ = net.ParseMAC("aa:aa:aa:aa:aa:aa")
assert.True(t, s.AddStaticLease(l) == nil)
// "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.Equal(t, "192.168.10.150", resp.YourIPAddr.String())
assert.Equal(t, "192.168.10.1", resp.Router()[0].String())
assert.Equal(t, "192.168.10.1", resp.ServerIdentifier().String())
assert.Equal(t, "255.255.255.0", net.IP(resp.SubnetMask()).String())
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.Equal(t, "192.168.10.150", resp.YourIPAddr.String())
assert.Equal(t, "192.168.10.1", resp.Router()[0].String())
assert.Equal(t, "192.168.10.1", resp.ServerIdentifier().String())
assert.Equal(t, "255.255.255.0", net.IP(resp.SubnetMask()).String())
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
dnsAddrs := resp.DNS()
assert.Equal(t, 1, len(dnsAddrs))
assert.Equal(t, "192.168.10.1", dnsAddrs[0].String())
// check lease
ls := s.GetLeases(LeasesStatic)
assert.Equal(t, 1, len(ls))
assert.Equal(t, "192.168.10.150", ls[0].IP.String())
assert.Equal(t, "aa:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
}
func TestV4DynamicLeaseGet(t *testing.T) {
conf := V4ServerConf{
Enabled: true,
RangeStart: "192.168.10.100",
RangeEnd: "192.168.10.200",
GatewayIP: "192.168.10.1",
SubnetMask: "255.255.255.0",
notify: notify4,
Options: []string{
"81 hex 303132",
"82 ip 1.2.3.4",
},
}
sIface, err := v4Create(conf)
s := sIface.(*v4Server)
assert.True(t, err == nil)
s.conf.dnsIPAddrs = []net.IP{net.ParseIP("192.168.10.1").To4()}
// "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.Equal(t, "192.168.10.100", resp.YourIPAddr.String())
assert.Equal(t, "192.168.10.1", resp.Router()[0].String())
assert.Equal(t, "192.168.10.1", resp.ServerIdentifier().String())
assert.Equal(t, "255.255.255.0", net.IP(resp.SubnetMask()).String())
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
assert.Equal(t, []byte("012"), resp.Options[uint8(dhcpv4.OptionFQDN)])
assert.Equal(t, "1.2.3.4", net.IP(resp.Options[uint8(dhcpv4.OptionRelayAgentInformation)]).String())
// "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.Equal(t, "192.168.10.100", resp.YourIPAddr.String())
assert.Equal(t, "192.168.10.1", resp.Router()[0].String())
assert.Equal(t, "192.168.10.1", resp.ServerIdentifier().String())
assert.Equal(t, "255.255.255.0", net.IP(resp.SubnetMask()).String())
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
dnsAddrs := resp.DNS()
assert.Equal(t, 1, len(dnsAddrs))
assert.Equal(t, "192.168.10.1", dnsAddrs[0].String())
// check lease
ls := s.GetLeases(LeasesDynamic)
assert.Equal(t, 1, len(ls))
assert.Equal(t, "192.168.10.100", ls[0].IP.String())
assert.Equal(t, "aa:aa:aa:aa:aa:aa", ls[0].HWAddr.String())
start := net.ParseIP("192.168.10.100").To4()
stop := net.ParseIP("192.168.10.200").To4()
assert.True(t, !ip4InRange(start, stop, net.ParseIP("192.168.10.99").To4()))
assert.True(t, !ip4InRange(start, stop, net.ParseIP("192.168.11.100").To4()))
assert.True(t, !ip4InRange(start, stop, net.ParseIP("192.168.11.201").To4()))
assert.True(t, ip4InRange(start, stop, net.ParseIP("192.168.10.100").To4()))
}
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