45 lines
995 B
Go
45 lines
995 B
Go
package pkg
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import (
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"fmt"
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"math/rand"
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"time"
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)
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func init() {
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rand.Seed(time.Now().UnixNano())
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}
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func RandMac() string {
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return fmt.Sprintf("%02x:%02x:%02x:%02x:%02x:%02x", rand.Intn(256), rand.Intn(256), rand.Intn(256), rand.Intn(256), rand.Intn(256), rand.Intn(256))
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}
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func RandIp() string {
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return fmt.Sprintf("%d.%d.%d.%d", rand.Intn(256), rand.Intn(256), rand.Intn(256), rand.Intn(256))
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}
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func RandPort() uint16 {
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return uint16(rand.Intn(35536) + 30000)
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}
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func RandVni() uint32 {
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return uint32(rand.Intn(1 << 24))
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}
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func RandDstPort() uint16 {
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// 固定端口范围，流量好看点，也能发现是否有人拿我们流量去做其他测试
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ports := []uint16{
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80, 8080, 8081, 8082, 8083, 8084, 8085, 8086, 8087,
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}
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list := []int{
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8000, 10000, 12000, 14000, 16000, 18000, 20000, 22000, 24000,
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}
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for _, item := range list {
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for i := 0; i < 20; i++ {
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ports = append(ports, uint16(rand.Intn(30)+item))
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}
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}
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size := len(ports)
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return ports[rand.Intn(size)]
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}
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