v0.0.2 next step: acutally try to nsupdatev0.0.2

    upto the point where DNS update is next.
    start displaying real AAAA & naming buttons
    add RFC 2136 defining nsupdate. Vixie et al in 1997
        Personal thansk to Paul for meeting with me some years back
    ready to pull DNS records
    starting a checkDNS() function
    dampen output. actually track IPs
    poll every 2 seconds (netlink is not the right thing here)
    ready to start looking for changes
    screw everything about logging. I hate log.whatthefuck*(){}
    Do you know what I don't care about? log()
    You shouldn't care either. Ignore it until you need it
    that is what logging is for. building something that works.
    So, here you go. a damn log() function in one place
    Also, because I'm annoyed today sleep() and exit()
    Because, when I want you to sleep or exit, I don't
    want to go to the top of a file and declare stupid shit related
    to nanoseconds or add "import os.Exit" or whatever the hell
    stop wasting my time. life is short.
    if he sit tunnelbroker down
    add IsRealIP() and IsIPv6()
    need a netlink function to trigger on changes (nope)
    put the gui plugin's in the debian package for now
    set the window title
    build a .deb package

    Signed-off-by: Jeff Carr <[email protected]>

1 files changed, 223 insertions, 0 deletions

diff --git a/net.go b/net.go
new file mode 100644
index 0000000..e24fe41
--- /dev/null
+++ b/net.go
@@ -0,0 +1,223 @@
+// This creates a simple hello world window
+package main
+
+import 	(
+	"net"
+	"strings"
+	// "git.wit.org/wit/gui"
+)
+
+var DEBUGNET bool = false
+
+// this doesn't work
+/*
+func watchNetworkInterfaces() {
+	// Get list of network interfaces
+	interfaces, _ := net.Interfaces()
+
+	// Set up a notification channel
+	notification := make(chan net.Interface)
+
+	log(DEBUGNET, "watchNet()")
+	// Start goroutine to watch for changes
+	go func() {
+		log(DEBUGNET, "watchNet() func")
+		for {
+			log(DEBUGNET, "forever loop start")
+			// Check for changes in each interface
+			for _, i := range interfaces {
+				log(DEBUGNET, "something on i =", i)
+				if status := i.Flags & net.FlagUp; status != 0 {
+					notification <- i
+					log(DEBUGNET, "something on i =", i)
+				}
+			}
+			log(DEBUGNET, "forever loop end")
+		}
+	}()
+}
+*/
+
+func IsIPv6(address string) bool {
+	return strings.Count(address, ":") >= 2
+}
+
+func (t *IPtype) IsReal() bool {
+	if (t.ip.IsPrivate() || t.ip.IsLoopback() || t.ip.IsLinkLocalUnicast()) {
+		log(DEBUGNET, "\t\tIP is Real = false")
+		return false
+	} else {
+		log(DEBUGNET, "\t\tIP is Real = true")
+		return true
+	}
+}
+
+func IsReal(ip *net.IP) bool {
+	if (ip.IsPrivate() || ip.IsLoopback() || ip.IsLinkLocalUnicast()) {
+		log(DEBUGNET, "\t\tIP is Real = false")
+		return false
+	} else {
+		log(DEBUGNET, "\t\tIP is Real = true")
+		return true
+	}
+}
+
+func renameInterface(i *net.Interface) {
+	/*
+	/sbin/ip link set eth1 down
+	/sbin/ip link set eth1 name eth123
+	/sbin/ip link set eth123 up
+	*/
+}
+
+// Will figure out if an interface was just added
+func checkInterface(i net.Interface) {
+	val, ok := me.ifmap[i.Index]
+	if ! ok {
+		log(i.Name, "is a new network interface. The linux kernel index =", i.Index)
+		me.ifmap[i.Index] = new(IFtype)
+		me.ifmap[i.Index].gone = false
+		me.ifmap[i.Index].iface = &i
+		me.ipchange = true
+		return
+	}
+	me.ifmap[i.Index].gone = false
+	log(args.VerboseNet, "me.ifmap[i] does exist. Need to compare everything.", i.Index, i.Name, val.iface.Index, val.iface.Name)
+	if (val.iface.Name != i.Name) {
+		log(val.iface.Name, "has changed to it's name to", i.Name)
+		me.ifmap[i.Index].iface = &i
+		me.ipchange = true
+		return
+	}
+}
+
+func realAAAA() []string {
+	var aaaa []string
+
+	for s, t := range me.ipmap {
+		if (t.IsReal()) {
+			if (t.ipv6) {
+				aaaa = append(aaaa, s)
+			}
+		}
+	}
+	return aaaa
+}
+
+func checkDNS() (map[string]*IPtype, map[string]*IPtype) {
+	var ipv4s map[string]*IPtype
+	var ipv6s map[string]*IPtype
+
+	ipv4s = make(map[string]*IPtype)
+	ipv6s = make(map[string]*IPtype)
+
+	for s, t := range me.ipmap {
+		i := t.iface
+		ipt := "IPv4"
+		if (t.ipv6) {
+			ipt = "IPv6"
+		}
+		if (t.IsReal()) {
+			log("\tIP is Real    ", ipt, i.Index, i.Name, s)
+			if (t.ipv6) {
+				ipv6s[s] = t
+			} else {
+				ipv4s[s] = t
+			}
+		} else {
+			log("\tIP is not Real", ipt, i.Index, i.Name, s)
+		}
+	}
+	return ipv6s, ipv4s
+}
+
+// Will figure out if an IP address is new
+func checkIP(ip *net.IPNet, i net.Interface) bool {
+	log(args.VerboseNet, "\t\taddr.(type) = *net.IPNet")
+	log(args.VerboseNet, "\t\taddr.(type) =", ip)
+	var realip string
+	realip = ip.IP.String()
+
+	val, ok := me.ipmap[realip]
+	if ok {
+		log(args.VerboseNet, val.ipnet.IP.String(), "is already a defined IP address")
+		me.ipmap[realip].gone = false
+		return false
+	}
+
+	me.ipmap[realip] = new(IPtype)
+	me.ipmap[realip].gone = false
+	me.ipmap[realip].ipv4 = true
+	me.ipmap[realip].ipnet = ip
+	me.ipmap[realip].ip = ip.IP
+	me.ipmap[realip].iface = &i
+	t := "IPv4"
+	if (IsIPv6(ip.String())) {
+		me.ipmap[realip].ipv6 = true
+		me.ipmap[realip].ipv4 = false
+		t = "IPv6"
+	} else {
+		me.ipmap[realip].ipv6 = false
+		me.ipmap[realip].ipv4 = true
+	}
+	if (IsReal(&ip.IP)) {
+		log("\tIP is Real    ", t, i.Index, i.Name, realip)
+	} else {
+		log("\tIP is not Real", t, i.Index, i.Name, realip)
+	}
+	log(args.VerboseNet, "\t\tIP is IsPrivate() =", ip.IP.IsPrivate())
+	log(args.VerboseNet, "\t\tIP is IsLoopback() =", ip.IP.IsLoopback())
+	log(args.VerboseNet, "\t\tIP is IsLinkLocalUnicast() =", ip.IP.IsLinkLocalUnicast())
+	// log("HERE HERE", "realip =", realip, "me.ip[realip]=", me.ipmap[realip])
+	return true
+}
+
+func scanInterfaces() {
+	me.ipchange = false
+	ifaces, _ := net.Interfaces()
+	// me.ifnew = ifaces
+	log(DEBUGNET, SPEW, ifaces)
+	for _, i := range ifaces {
+		addrs, _ := i.Addrs()
+		// log("range ifaces = ", i)
+		checkInterface(i)
+		log(args.VerboseNet, "*net.Interface.Name = ", i.Name, i.Index)
+		log(args.VerboseNet, SPEW, i)
+		log(DEBUGNET, SPEW, addrs)
+		for _, addr := range addrs {
+			log(DEBUGNET, "\taddr =", addr)
+			log(DEBUGNET, SPEW, addrs)
+			ips, _ := net.LookupIP(addr.String())
+			log(DEBUGNET, "\tLookupIP(addr) =", ips)
+			switch v := addr.(type) {
+			case *net.IPNet:
+				checkIP(v, i)
+				// log("\t\tIP is () =", ip.())
+			default:
+				log(DEBUGNET, "\t\taddr.(type) = NO IDEA WHAT TO DO HERE v =", v)
+			}
+		}
+	}
+	deleteChanges()
+}
+
+// delete network interfaces and ip addresses from the gui
+func deleteChanges() {
+	for i, t := range me.ifmap {
+		if (t.gone) {
+			log("DELETE int =", i, "name =", t.name, t.iface)
+			delete(me.ifmap, i)
+		}
+		t.gone = true
+	}
+	for s, t := range me.ipmap {
+		if (t.gone) {
+			log("DELETE name =", s, "IPv4 =", t.ipv4)
+			log("DELETE name =", s, "IPv6 =", t.ipv6)
+			log("DELETE name =", s, "iface =", t.iface)
+			log("DELETE name =", s, "ip =", t.ip)
+			delete(me.ipmap, s)
+		}
+		t.gone = true
+	}
+}