1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
package main
import (
"bytes"
"fmt"
"github.com/BurntSushi/toml"
"github.com/jessevdk/go-flags"
"github.com/osrg/gobgp/config"
"io/ioutil"
"log"
"net"
"os"
"path/filepath"
)
var serverAddress = make(map[string]string)
var baseNeighborAddress = make(map[string]string)
var baseNeighborNetwork = make(map[string]string)
var baseNeighborNetMask = make(map[string]string)
const (
IPv4 = "ipv4"
IPv6 = "ipv6"
)
type QuaggaConfig struct {
id int
config *config.Neighbor
gobgpConfig *config.Global
serverIP net.IP
}
func NewQuaggaConfig(id int, gConfig *config.Global, myConfig *config.Neighbor, server net.IP) *QuaggaConfig {
return &QuaggaConfig{
id: id,
config: myConfig,
gobgpConfig: gConfig,
serverIP: server,
}
}
func (qt *QuaggaConfig) IPv4Config() *bytes.Buffer {
buf := bytes.NewBuffer(nil)
buf.WriteString(fmt.Sprintf("! my address %s\n", qt.config.NeighborAddress))
buf.WriteString(fmt.Sprintf("! my ip_version %s\n", IPv4))
buf.WriteString("hostname bgpd\n")
buf.WriteString("password zebra\n")
buf.WriteString(fmt.Sprintf("router bgp %d\n", qt.config.PeerAs))
buf.WriteString(fmt.Sprintf("bgp router-id 192.168.0.%d\n", qt.id))
buf.WriteString(fmt.Sprintf("network %s%d%s\n", baseNeighborNetwork[IPv4], qt.id, baseNeighborNetMask[IPv4]))
buf.WriteString(fmt.Sprintf("neighbor %s remote-as %d\n", qt.serverIP, qt.gobgpConfig.As))
buf.WriteString(fmt.Sprintf("neighbor %s password %s\n", qt.serverIP, qt.config.AuthPassword))
buf.WriteString("debug bgp as4\n")
buf.WriteString("debug bgp fsm\n")
buf.WriteString("debug bgp updates\n")
buf.WriteString("debug bgp events\n")
buf.WriteString("log file /var/log/quagga/bgpd.log\n")
return buf
}
func (qt *QuaggaConfig) IPv6Config() *bytes.Buffer {
buf := bytes.NewBuffer(nil)
buf.WriteString(fmt.Sprintf("! my address %s\n", qt.config.NeighborAddress))
buf.WriteString(fmt.Sprintf("! my ip_version %s\n", IPv6))
buf.WriteString("hostname bgpd\n")
buf.WriteString("password zebra\n")
buf.WriteString(fmt.Sprintf("router bgp %d\n", qt.config.PeerAs))
buf.WriteString(fmt.Sprintf("bgp router-id 192.168.0.%d\n", qt.id))
buf.WriteString("no bgp default ipv4-unicast\n")
buf.WriteString(fmt.Sprintf("neighbor %s remote-as %d\n", qt.serverIP, qt.gobgpConfig.As))
buf.WriteString(fmt.Sprintf("neighbor %s password %s\n", qt.serverIP, qt.config.AuthPassword))
buf.WriteString("address-family ipv6\n")
buf.WriteString(fmt.Sprintf("network %s%d%s\n", baseNeighborNetwork[IPv6], qt.id, baseNeighborNetMask[IPv6]))
buf.WriteString(fmt.Sprintf("neighbor %s activate\n", qt.serverIP))
buf.WriteString(fmt.Sprintf("neighbor %s route-map IPV6-OUT out\n", qt.serverIP))
buf.WriteString("exit-address-family\n")
buf.WriteString("ipv6 prefix-list pl-ipv6 seq 10 permit any\n")
buf.WriteString("route-map IPV6-OUT permit 10\n")
buf.WriteString("match ipv6 address prefix-list pl-ipv6\n")
buf.WriteString(fmt.Sprintf("set ipv6 next-hop global %s\n", qt.config.NeighborAddress))
buf.WriteString("debug bgp as4\n")
buf.WriteString("debug bgp fsm\n")
buf.WriteString("debug bgp updates\n")
buf.WriteString("debug bgp events\n")
buf.WriteString("log file /var/log/quagga/bgpd.log\n")
return buf
}
func create_config_files(nr int, outputDir string, IPVersion string, nonePeer bool, normalBGP bool) {
quaggaConfigList := make([]*QuaggaConfig, 0)
gobgpConf := config.Bgp{
Global: config.Global{
As: 65000,
RouterId: net.ParseIP("192.168.255.1"),
},
}
for i := 1; i < nr+1; i++ {
c := config.Neighbor{
PeerAs: 65000 + uint32(i),
NeighborAddress: net.ParseIP(fmt.Sprintf("%s%d", baseNeighborAddress[IPVersion], i)),
AuthPassword: fmt.Sprintf("hoge%d", i),
TransportOptions: config.TransportOptions{PassiveMode: true},
RouteServer: config.RouteServer{RouteServerClient: !normalBGP},
Timers: config.Timers{HoldTime: 30, KeepaliveInterval: 10, IdleHoldTimeAfterReset: 10},
PeerType: config.PEER_TYPE_EXTERNAL,
}
gobgpConf.NeighborList = append(gobgpConf.NeighborList, c)
if !nonePeer {
q := NewQuaggaConfig(i, &gobgpConf.Global, &c, net.ParseIP(serverAddress[IPVersion]))
quaggaConfigList = append(quaggaConfigList, q)
os.Mkdir(fmt.Sprintf("%s/q%d", outputDir, i), 0755)
var err error
if IPVersion == IPv6 {
err = ioutil.WriteFile(fmt.Sprintf("%s/q%d/bgpd.conf", outputDir, i), q.IPv6Config().Bytes(), 0644)
} else {
err = ioutil.WriteFile(fmt.Sprintf("%s/q%d/bgpd.conf", outputDir, i), q.IPv4Config().Bytes(), 0644)
}
if err != nil {
log.Fatal(err)
}
}
}
var buffer bytes.Buffer
encoder := toml.NewEncoder(&buffer)
encoder.Encode(gobgpConf)
err := ioutil.WriteFile(fmt.Sprintf("%s/gobgpd.conf", outputDir), buffer.Bytes(), 0644)
if err != nil {
log.Fatal(err)
}
}
func append_config_files(ar int, outputDir string, IPVersion string, noQuagga bool, normalBGP bool) {
gobgpConf := config.Bgp{
Global: config.Global{
As: 65000,
RouterId: net.ParseIP("192.168.255.1"),
},
}
c := config.Neighbor{
PeerAs: 65000 + uint32(ar),
NeighborAddress: net.ParseIP(fmt.Sprintf("%s%d", baseNeighborAddress[IPVersion], ar)),
AuthPassword: fmt.Sprintf("hoge%d", ar),
RouteServer: config.RouteServer{RouteServerClient: !normalBGP},
TransportOptions: config.TransportOptions{PassiveMode: true},
Timers: config.Timers{HoldTime: 30, KeepaliveInterval: 10, IdleHoldTimeAfterReset: 10},
PeerType: config.PEER_TYPE_EXTERNAL,
}
if !noQuagga {
q := NewQuaggaConfig(ar, &gobgpConf.Global, &c, net.ParseIP(serverAddress[IPVersion]))
os.Mkdir(fmt.Sprintf("%s/q%d", outputDir, ar), 0755)
var err error
if IPVersion == IPv6 {
err = ioutil.WriteFile(fmt.Sprintf("%s/q%d/bgpd.conf", outputDir, ar), q.IPv6Config().Bytes(), 0644)
} else {
err = ioutil.WriteFile(fmt.Sprintf("%s/q%d/bgpd.conf", outputDir, ar), q.IPv4Config().Bytes(), 0644)
}
if err != nil {
log.Fatal(err)
}
}
newConf := config.Bgp{}
_, d_err := toml.DecodeFile(fmt.Sprintf("%s/gobgpd.conf", outputDir), &newConf)
if d_err != nil {
log.Fatal(d_err)
}
newConf.NeighborList = append(newConf.NeighborList, c)
var buffer bytes.Buffer
encoder := toml.NewEncoder(&buffer)
encoder.Encode(newConf)
policyConf := &config.RoutingPolicy{}
_, p_err := toml.DecodeFile(fmt.Sprintf("%s/gobgpd.conf", outputDir), policyConf)
if p_err != nil {
log.Fatal(p_err)
}
if policyConf != nil && len(policyConf.PolicyDefinitionList) != 0 {
encoder.Encode(policyConf)
}
e_err := ioutil.WriteFile(fmt.Sprintf("%s/gobgpd.conf", outputDir), buffer.Bytes(), 0644)
if e_err != nil {
log.Fatal(e_err)
}
}
func main() {
var opts struct {
ClientNumber int `short:"n" long:"client-number" description:"specfying the number of clients" default:"8"`
OutputDir string `short:"c" long:"output" description:"specifing the output directory"`
AppendClient int `short:"a" long:"append" description:"specifing the add client number" default:"0"`
IPVersion string `short:"v" long:"ip-version" description:"specifing the use ip version" default:"IPv4"`
NetIdentifier int `short:"i" long:"net-identifer" description:"specifing the use network identifier" default:"0"`
NonePeer bool `long:"none-peer" description:"disable make quagga config"`
NormalBGP bool `long:"normal-bgp" description:"generate normal bgp server configuration"`
}
parser := flags.NewParser(&opts, flags.Default)
_, err := parser.Parse()
if err != nil {
fmt.Print(err)
os.Exit(1)
}
if opts.OutputDir == "" {
opts.OutputDir, _ = filepath.Abs(".")
} else {
if _, err := os.Stat(opts.OutputDir); os.IsNotExist(err) {
os.Mkdir(opts.OutputDir, 0755)
}
}
if opts.IPVersion == IPv6 {
serverAddress[IPv6] = fmt.Sprintf("2001::%d:192:168:255:1", opts.NetIdentifier)
baseNeighborAddress[IPv6] = fmt.Sprintf("2001::%d:192:168:0:", opts.NetIdentifier)
baseNeighborNetwork[IPv6] = "2001:0:10:"
baseNeighborNetMask[IPv6] = "::/64"
} else {
opts.IPVersion = IPv4
serverAddress[IPv4] = fmt.Sprintf("1%d.0.255.1", opts.NetIdentifier)
baseNeighborAddress[IPv4] = fmt.Sprintf("1%d.0.0.", opts.NetIdentifier)
baseNeighborNetwork[IPv4] = "192.168."
baseNeighborNetMask[IPv4] = ".0/24"
}
isCreateMode := opts.AppendClient == 0
if isCreateMode {
create_config_files(opts.ClientNumber, opts.OutputDir, opts.IPVersion, opts.NonePeer, opts.NormalBGP)
} else {
if _, err := os.Stat(fmt.Sprintf("%s/gobgpd.conf", opts.OutputDir)); os.IsNotExist(err) {
log.Fatal(err)
}
append_config_files(opts.AppendClient, opts.OutputDir, opts.IPVersion, opts.NonePeer, opts.NormalBGP)
}
}
|
