293 lines
6.6 KiB
Go
293 lines
6.6 KiB
Go
// This creates a simple hello world window
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package main
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import (
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// "log"
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"net"
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"strings"
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"go.wit.com/log"
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)
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// this doesn't work
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/*
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func watchNetworkInterfaces() {
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// Get list of network interfaces
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interfaces, _ := net.Interfaces()
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// Set up a notification channel
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notification := make(chan net.Interface)
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log.Log(NET, "watchNet()")
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// Start goroutine to watch for changes
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go func() {
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log.Log(NET, "watchNet() func")
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for {
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log.Log(NET, "forever loop start")
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// Check for changes in each interface
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for _, i := range interfaces {
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log.Log(NET, "something on i =", i)
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if status := i.Flags & net.FlagUp; status != 0 {
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notification <- i
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log.Log(NET, "something on i =", i)
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}
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}
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log.Log(NET, "forever loop end")
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}
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}()
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}
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*/
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func IsIPv6(address string) bool {
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return strings.Count(address, ":") >= 2
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}
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func (t *IPtype) IsReal() bool {
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if (t.ip.IsPrivate() || t.ip.IsLoopback() || t.ip.IsLinkLocalUnicast()) {
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log.Log(NET, "\t\tIP is Real = false")
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return false
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} else {
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log.Log(NET, "\t\tIP is Real = true")
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return true
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}
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}
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func IsReal(ip *net.IP) bool {
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if (ip.IsPrivate() || ip.IsLoopback() || ip.IsLinkLocalUnicast()) {
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log.Log(NET, "\t\tIP is Real = false")
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return false
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} else {
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log.Log(NET, "\t\tIP is Real = true")
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return true
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}
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}
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func renameInterface(i *net.Interface) {
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/*
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/sbin/ip link set eth1 down
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/sbin/ip link set eth1 name eth123
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/sbin/ip link set eth123 up
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*/
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}
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// Will figure out if an interface was just added
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func checkInterface(i net.Interface) {
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val, ok := me.ifmap[i.Index]
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if ! ok {
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log.Info(i.Name, "is a new network interface. The linux kernel index =", i.Index)
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me.ifmap[i.Index] = new(IFtype)
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me.ifmap[i.Index].gone = false
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me.ifmap[i.Index].iface = &i
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me.changed = true
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if (me.Interfaces != nil) {
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me.Interfaces.AddText(i.Name)
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me.Interfaces.SetText(i.Name)
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}
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return
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}
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me.ifmap[i.Index].gone = false
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log.Log(NET, "me.ifmap[i] does exist. Need to compare everything.", i.Index, i.Name, val.iface.Index, val.iface.Name)
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if (val.iface.Name != i.Name) {
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log.Info(val.iface.Name, "has changed to it's name to", i.Name)
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me.ifmap[i.Index].iface = &i
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me.changed = true
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if (me.Interfaces != nil) {
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me.Interfaces.AddText(i.Name)
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me.Interfaces.SetText(i.Name)
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}
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return
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}
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}
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/*
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These are the real IP address you have been
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given from DHCP
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*/
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func dhcpAAAA() []string {
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var aaaa []string
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for s, t := range me.ipmap {
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if (t.IsReal()) {
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if (t.ipv6) {
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aaaa = append(aaaa, s)
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}
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}
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}
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return aaaa
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}
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func realA() []string {
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var a []string
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for s, t := range me.ipmap {
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if (t.IsReal()) {
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if (t.ipv4) {
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a = append(a, s)
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}
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}
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}
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return a
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}
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func checkDNS() (map[string]*IPtype, map[string]*IPtype) {
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var ipv4s map[string]*IPtype
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var ipv6s map[string]*IPtype
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ipv4s = make(map[string]*IPtype)
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ipv6s = make(map[string]*IPtype)
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for s, t := range me.ipmap {
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i := t.iface
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ipt := "IPv4"
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if (t.ipv6) {
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ipt = "IPv6"
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}
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if (t.IsReal()) {
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log.Info("\tIP is Real ", ipt, i.Index, i.Name, s)
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if (t.ipv6) {
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ipv6s[s] = t
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} else {
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ipv4s[s] = t
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}
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} else {
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log.Info("\tIP is not Real", ipt, i.Index, i.Name, s)
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}
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}
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return ipv6s, ipv4s
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}
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// Will figure out if an IP address is new
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func checkIP(ip *net.IPNet, i net.Interface) bool {
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log.Log(NET, "\t\taddr.(type) = *net.IPNet")
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log.Log(NET, "\t\taddr.(type) =", ip)
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var realip string
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realip = ip.IP.String()
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val, ok := me.ipmap[realip]
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if ok {
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log.Log(NET, val.ipnet.IP.String(), "is already a defined IP address")
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me.ipmap[realip].gone = false
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return false
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}
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me.ipmap[realip] = new(IPtype)
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me.ipmap[realip].gone = false
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me.ipmap[realip].ipv4 = true
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me.ipmap[realip].ipnet = ip
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me.ipmap[realip].ip = ip.IP
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me.ipmap[realip].iface = &i
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t := "IPv4"
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if (IsIPv6(ip.String())) {
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me.ipmap[realip].ipv6 = true
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me.ipmap[realip].ipv4 = false
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t = "IPv6"
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if (me.IPv6 != nil) {
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me.IPv6.SetText(realip)
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}
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} else {
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me.ipmap[realip].ipv6 = false
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me.ipmap[realip].ipv4 = true
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if (me.IPv4 != nil) {
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me.IPv4.SetText(realip)
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}
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}
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if (IsReal(&ip.IP)) {
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log.Info("\tIP is Real ", t, i.Index, i.Name, realip)
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} else {
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log.Info("\tIP is not Real", t, i.Index, i.Name, realip)
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}
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log.Log(NET, "\t\tIP is IsPrivate() =", ip.IP.IsPrivate())
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log.Log(NET, "\t\tIP is IsLoopback() =", ip.IP.IsLoopback())
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log.Log(NET, "\t\tIP is IsLinkLocalUnicast() =", ip.IP.IsLinkLocalUnicast())
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// log.Info("HERE HERE", "realip =", realip, "me.ip[realip]=", me.ipmap[realip])
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return true
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}
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func scanInterfaces() {
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log.Log(NET, "scanInterfaces() START")
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ifaces, _ := net.Interfaces()
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// me.ifnew = ifaces
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log.Log(NET, SPEW, ifaces)
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for _, i := range ifaces {
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addrs, _ := i.Addrs()
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// log.Info("range ifaces = ", i)
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checkInterface(i)
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log.Log(NET, "*net.Interface.Name = ", i.Name, i.Index)
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log.Log(NET, SPEW, i)
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log.Log(NET, SPEW, addrs)
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for _, addr := range addrs {
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log.Log(NET, "\taddr =", addr)
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log.Log(NET, SPEW, addrs)
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ips, _ := net.LookupIP(addr.String())
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log.Log(NET, "\tLookupIP(addr) =", ips)
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switch v := addr.(type) {
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case *net.IPNet:
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if checkIP(v, i) {
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log.Log(true, "scanInterfaces() IP is new () i =", v.IP.String())
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}
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default:
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log.Log(NET, "\t\taddr.(type) = NO IDEA WHAT TO DO HERE v =", v)
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}
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}
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}
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if deleteChanges() {
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me.changed = true
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log.Log(NET, "deleteChanges() detected network changes")
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}
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updateRealAAAA()
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log.Log(NET, "scanInterfaces() END")
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}
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// displays the IP address found on your network interfaces
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func updateRealAAAA() {
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var all4 string
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var all6 string
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for s, t := range me.ipmap {
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if (t.ipv4) {
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all4 += s + "\n"
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log.Log(NET, "IPv4 =", s)
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} else if (t.ipv6) {
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all6 += s + "\n"
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log.Log(NET, "IPv6 =", s)
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} else {
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log.Log(NET, "???? =", s)
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}
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}
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all4 = sortLines(all4)
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all6 = sortLines(all6)
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if (me.IPv4.S != all4) {
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log.Log(NET, "IPv4 addresses have changed", all4)
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me.IPv4.SetText(all4)
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}
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if (me.IPv6.S != all6) {
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log.Log(NET, "IPv6 addresses have changed", all6)
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me.IPv6.SetText(all6)
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}
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}
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// delete network interfaces and ip addresses from the gui
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func deleteChanges() bool {
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var changed bool = false
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for i, t := range me.ifmap {
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if (t.gone) {
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log.Log(CHANGE, "DELETE int =", i, "name =", t.name, t.iface)
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delete(me.ifmap, i)
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changed = true
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}
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t.gone = true
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}
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for s, t := range me.ipmap {
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if (t.gone) {
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log.Log(CHANGE, "DELETE name =", s, "IPv4 =", t.ipv4)
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log.Log(CHANGE, "DELETE name =", s, "IPv6 =", t.ipv6)
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log.Log(CHANGE, "DELETE name =", s, "iface =", t.iface)
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log.Log(CHANGE, "DELETE name =", s, "ip =", t.ip)
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delete(me.ipmap, s)
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changed = true
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}
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t.gone = true
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}
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return changed
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}
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