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net_ip.go
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net_ip.go
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package mob
import (
"fmt"
"net"
)
type AddressInfo struct {
IP string `json:"ip"`
Mask string `json:"mask"`
}
func (this *AddressInfo) String() string {
return fmt.Sprintf("IP=%s,Mask=%s", this.IP, this.Mask)
}
type NetInterfaces struct {
Name string `json:"name"`
Mac string `json:"mac"`
Address []AddressInfo `json:"address"`
}
func (this *NetInterfaces) String() string {
return fmt.Sprintf("Name=%s,Mac=%s", this.Name, this.Mac)
}
type ListNetFlag = int
const (
SkipLoopbackIP ListNetFlag = 1
SkipNoMac ListNetFlag = 2
SkipIPV4 ListNetFlag = 4
SkipIPV6 ListNetFlag = 8
SkipDefault = SkipLoopbackIP | SkipNoMac | SkipIPV6
)
func IsIPV4(ip net.IP) bool {
if tip := ip.To4(); len(tip) == net.IPv4len {
return true
}
return false
}
func NetworkList(flag ListNetFlag) (netIfs []NetInterfaces, err error) {
ifs, err := net.Interfaces()
if err != nil {
return nil, err
}
for _, it := range ifs {
macStr := it.HardwareAddr.String()
if flag&SkipNoMac != 0 && len(macStr) == 0 {
continue
}
netIf := NetInterfaces{
Name: it.Name,
Mac: it.HardwareAddr.String(),
}
address, err := it.Addrs()
if err != nil {
return nil, err
}
for _, it := range address {
ipAddr := it.(*net.IPNet)
if flag&SkipLoopbackIP != 0 && ipAddr.IP.IsLoopback() {
continue
}
isV4 := IsIPV4(ipAddr.IP)
if flag&SkipIPV4 != 0 && isV4 {
continue
}
if flag&SkipIPV6 != 0 && !isV4 {
continue
}
netIf.Address = append(netIf.Address, AddressInfo{
IP: ipAddr.IP.String(),
Mask: ipAddr.Mask.String(),
})
}
netIfs = append(netIfs, netIf)
}
return
}