Matteo Scandolo | f6f3a7f | 2019-10-11 11:19:29 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2018-present Open Networking Foundation |
| 3 | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package packetHandlers_test |
| 18 | |
| 19 | import ( |
| 20 | "github.com/google/gopacket" |
| 21 | "github.com/google/gopacket/layers" |
| 22 | "github.com/opencord/bbsim/internal/bbsim/packetHandlers" |
| 23 | "gotest.tools/assert" |
| 24 | "net" |
| 25 | "testing" |
| 26 | ) |
| 27 | |
| 28 | func Test_IsDhcpPacket_True(t *testing.T) { |
| 29 | dhcp := &layers.DHCPv4{ |
| 30 | Operation: layers.DHCPOpReply, |
| 31 | } |
| 32 | |
| 33 | buffer := gopacket.NewSerializeBuffer() |
| 34 | opts := gopacket.SerializeOptions{FixLengths: true} |
| 35 | err := gopacket.SerializeLayers(buffer, opts, dhcp) |
| 36 | if err != nil { |
| 37 | t.Fatal(err) |
| 38 | } |
| 39 | |
| 40 | dhcpPkt := gopacket.NewPacket(buffer.Bytes(), layers.LayerTypeDHCPv4, gopacket.DecodeOptions{}) |
| 41 | |
| 42 | res := packetHandlers.IsDhcpPacket(dhcpPkt) |
| 43 | assert.Equal(t, res, true) |
| 44 | } |
| 45 | |
| 46 | func Test_IsDhcpPacket_False(t *testing.T) { |
| 47 | eth := &layers.Ethernet{ |
| 48 | DstMAC: net.HardwareAddr{0x2e, 0x60, 0x70, 0x13, 0x15, 0x16}, |
| 49 | SrcMAC: net.HardwareAddr{0x2e, 0x60, 0x70, 0x13, 0x15, 0x17}, |
| 50 | } |
| 51 | |
| 52 | buffer := gopacket.NewSerializeBuffer() |
| 53 | opts := gopacket.SerializeOptions{FixLengths: true} |
| 54 | err := gopacket.SerializeLayers(buffer, opts, eth) |
| 55 | if err != nil { |
| 56 | t.Fatal(err) |
| 57 | } |
| 58 | |
| 59 | ethernetPkt := gopacket.NewPacket(buffer.Bytes(), layers.LayerTypeEthernet, gopacket.DecodeOptions{}) |
| 60 | |
| 61 | res := packetHandlers.IsDhcpPacket(ethernetPkt) |
| 62 | assert.Equal(t, res, false) |
| 63 | } |
| 64 | |
| 65 | func Test_IsIncomingPacket_True(t *testing.T) { |
| 66 | eth := &layers.IPv4{ |
| 67 | SrcIP: net.ParseIP("182.21.0.128"), |
| 68 | DstIP: net.ParseIP("182.21.0.122"), |
| 69 | } |
| 70 | |
| 71 | buffer := gopacket.NewSerializeBuffer() |
| 72 | opts := gopacket.SerializeOptions{FixLengths: true} |
| 73 | err := gopacket.SerializeLayers(buffer, opts, eth) |
| 74 | if err != nil { |
| 75 | t.Fatal(err) |
| 76 | } |
| 77 | |
| 78 | ethernetPkt := gopacket.NewPacket(buffer.Bytes(), layers.LayerTypeIPv4, gopacket.DecodeOptions{}) |
| 79 | |
| 80 | res := packetHandlers.IsIncomingPacket(ethernetPkt) |
| 81 | assert.Equal(t, res, true) |
| 82 | } |
| 83 | |
| 84 | func Test_IsIncomingPacket_False(t *testing.T) { |
| 85 | eth := &layers.IPv4{ |
| 86 | SrcIP: net.ParseIP("182.21.0.122"), |
| 87 | DstIP: net.ParseIP("182.21.0.128"), |
| 88 | } |
| 89 | |
| 90 | buffer := gopacket.NewSerializeBuffer() |
| 91 | opts := gopacket.SerializeOptions{FixLengths: true} |
| 92 | err := gopacket.SerializeLayers(buffer, opts, eth) |
| 93 | if err != nil { |
| 94 | t.Fatal(err) |
| 95 | } |
| 96 | |
| 97 | ethernetPkt := gopacket.NewPacket(buffer.Bytes(), layers.LayerTypeIPv4, gopacket.DecodeOptions{}) |
| 98 | |
| 99 | res := packetHandlers.IsIncomingPacket(ethernetPkt) |
| 100 | assert.Equal(t, res, false) |
| 101 | } |
| 102 | |
| 103 | func Test_GetDstMacAddressFromPacket(t *testing.T) { |
| 104 | dstMac := net.HardwareAddr{0x2e, 0x60, 0x70, 0x13, 0x15, 0x16} |
| 105 | eth := &layers.Ethernet{ |
| 106 | DstMAC: dstMac, |
| 107 | SrcMAC: net.HardwareAddr{0x2e, 0x60, 0x70, 0x13, 0x15, 0x17}, |
| 108 | } |
| 109 | |
| 110 | buffer := gopacket.NewSerializeBuffer() |
| 111 | opts := gopacket.SerializeOptions{FixLengths: true} |
| 112 | err := gopacket.SerializeLayers(buffer, opts, eth) |
| 113 | if err != nil { |
| 114 | t.Fatal(err) |
| 115 | } |
| 116 | |
| 117 | ethernetPkt := gopacket.NewPacket(buffer.Bytes(), layers.LayerTypeEthernet, gopacket.DecodeOptions{}) |
| 118 | |
| 119 | res, err := packetHandlers.GetDstMacAddressFromPacket(ethernetPkt) |
| 120 | assert.Equal(t, err, nil) |
| 121 | assert.Equal(t, res.String(), dstMac.String()) |
| 122 | } |