+++ /dev/null
-var myas=4321;
-var myip="10.10.40.1";
-var number_of_route_adverts = 6;
-var routes_per_advert = 4;
-
-var net = require('net');
-
-var updateSent = 0;
-
-var scon;
-
-
-function createentry(i) {
- // split into octets
- var a = 0;
- var b = 0;
- var c = 0;
-
- var x = 45<<16;
-
- //console.log("var x is "+x);
- i = i+x;
- //console.log("i now: "+i+" i>>8 "+i+" i>>16 "+(i>>16));
-
- c = i&255;
- b = (i>>8)&255;
- a = (i>>16)&255;
-
-
- //console.log("created "+a+"."+b+"."+c+" from "+i);
- return a+"."+b+"."+c;
-}
-
-function createaspath(i) {
- var n=(i%5)+2;
- var as = 1024;
- var ret = new Array();
-
- for(var t=0; t<n; t++) {
- i = i << 1;
- as = 1024 + (i%30000);
- ret[t] = as;
- }
- return ret;
-}
-
-console.log("startup....");
-
-
-
-var data = new Array();
-
-console.log("start construction");
-for(var t=0; t<number_of_route_adverts; t++) {
- var thisdata = new Array();
- //var retvuf = new Buffer(1);
- for(var b=0; b<routes_per_advert; b++) {
- var nvt = (t*routes_per_advert)+b;
- thisdata[0] = createentry(nvt);
- //console.log("create entry from "+thisdata[0]+" with " + t);
- if(b==0) thisdata[1] = createaspath(nvt);
- // we construct the update messages while we do this
-
- // ok, that was dumb
- if(b>0) thisdata[2] += constructUpdateMessage(thisdata, true, routes_per_advert);
- else thisdata[2] = constructUpdateMessage(thisdata, false, routes_per_advert);
- }
- console.log("thisdata is...");
- console.log(thisdata);
- //console.log(thisdata.toJSON());
- console.log(thisdata[2].length);
- console.log(thisdata[2].toString());
- data[t] = thisdata;
-}
-console.log("finish construction");
-
-
-//console.log("data: " + data.toString());
-//console.log(data);
-//console.log("Done!: " + data.length);
-
-function parseBuffer(b, c) {
- var len = b.readUInt16BE(16);
- var type = b.readUInt8(18);
-
- //console.log("got input: " + len + ", type: " + type);
-
- if(type == 1) {
- var vers = b.readUInt8(19);
- var as = b.readUInt16BE(20);
- var ht = b.readUInt16BE(22);
- var ot1 = b.readUInt8(24);
- var ot2 = b.readUInt8(25);
- var ot3 = b.readUInt8(26);
- var ot4 = b.readUInt8(27);
- var opl = b.readUInt8(28);
- console.log("got open type, vers: "+vers+", as: " + as);
- console.log("ht: " + ht + ", id: "+ot1+"."+ot2+"."+ot3+"."+ot4+", opl: "+opl);
-
-
- console.log("sending our open type");
- var out = new Buffer(29);
-
-
- out.fill(0xff, 0, 16);
- out.writeUInt16BE(29, 16);
- out.writeUInt8(1, 18);
- out.writeUInt8(4, 19);
- out.writeUInt16BE(myas, 20);
- out.writeUInt16BE(90, 22);
- out.writeUInt8(10, 24);
- out.writeUInt8(99, 25);
- out.writeUInt8(99, 26);
- out.writeUInt8(1,27);
- out.writeUInt8(0,28);
-
- c.write(out);
- } else if(type == 4) {
- console.log("writing keepalive - exact as sent");
- c.write(b);
- //if(updateSent ==0) beginUpdateSend(c);
- } else if(type == 2) {
- console.log("got update...");
- if(updateSent ==0) beginUpdateSend(c);
- } else {
- console.log("sending end...");
- c.end();
- }
-
-
-}
-
-// this function gets prefix t from data[] and then
-// creates an update message for it
-function constructUpdateMessage(localdata, onlynlri, n_up) {
- console.log("Construction update for "+t);
- var bsize = 0;
-
- console.log("localdata0: " + localdata[0]);
- console.log("localdata1: " + localdata[1]);
- console.log("localdata0 - : " + typeof localdata[1]);
- console.log("localdata1 - : " + typeof localdata[1]);
-
- // first the header components
- bsize += 16;
-
- // next the length component
- bsize += 2;
-
- // next the n unfeasible
- bsize += 2;
-
- // next, path attr length
- bsize += 2;
-
-
- // now we begin the path attrs
- // first origin - simple
- var aspathn = 4;
-
- // next as path - hard, flag + type + len + aspath segment
- aspathn += 3;
-
- // as path segment size = 1 (type), + 1 (len) + as's*2
- var aspathlen = ((localdata[1].length+1)*2)+1+1;
- aspathn += aspathlen;
-
- // now next hop attrs = flag (1) + type (1) + len (1) + octets (4);
- aspathn += 7;
- bsize += aspathn;
-
- // now nlri = prefix len (1) + prefix fixed in our case (3)
- bsize += 4;
-
- // fudge
- bsize+=1;
-
- // now figure out t_bsize;
- var t_bsize = bsize + (4*(n_up-1));
-
- //console.log("size: " + bsize + ", an: " + aspathn + " al:" + aspathlen);
- var buf = new Buffer(bsize);
- var bp = 0;
-
- // now lets create the buffer
- buf.fill(0xff, bp, bp+16);
- bp+=16;
- buf.writeUInt16BE(t_bsize, bp);
- bp+=2;
- buf.writeUInt8(2, bp);
- bp++;
- buf.writeUInt16BE(0, bp);
- bp+=2;
- buf.writeUInt16BE(aspathn, bp);
- bp+=2;
-
- // path attr
- // origin
- buf.writeUInt8(0x40, bp);
- bp++;
- buf.writeUInt8(1, bp);
- bp++;
- buf.writeUInt8(1, bp);
- bp++;
- buf.writeUInt8(0, bp);
- bp++;
-
- // as path
- buf.writeUInt8(0x40, bp);
- bp++;
- buf.writeUInt8(2, bp);
- bp++;
- buf.writeUInt8(aspathlen, bp);
- bp++;
- buf.writeUInt8(2, bp);
- bp++;
- buf.writeUInt8(localdata[1].length+1, bp);
- bp++;
- //console.log("writing in my aspath: "+myas);
- buf.writeUInt16BE(myas, bp);
- bp+=2;
- localdata[1].forEach(function (ed) {
- //console.log("writing in aspath: "+ed);
- buf.writeUInt16BE(ed, bp);
- bp+=2;
- });
-
- // next hop
- buf.writeUInt8(0x40, bp);
- bp++;
- buf.writeUInt8(3, bp);
- bp++;
- buf.writeUInt8(4, bp);
- bp++;
- myip.split(".").forEach(function (ed) {
- //console.log("writing in next hop info: " + ed);
- buf.writeUInt8(parseInt(ed), bp);
- bp++;
- });
-
- // last, nlri
- if(onlynlri) {
- console.log("constructing new buffer for only nlri");
- buf = new Buffer(4);
- bp = 0;
- }
- buf.writeUInt8(24, bp);
- bp++;
- localdata[0].split(".").forEach(function(ed){
- console.log("Writing in nlri: "+ed);
- buf.writeUInt8(parseInt(ed), bp);
- bp++;
- });
-
- console.log("buf is:");
- console.log(buf);
- console.log(buf.length);
-
- return buf;
-}
-
-// start sending updates messages
-function beginUpdateSend(c) {
- updateSent = 1;
- var n = 0;
- data.forEach(function(led) {
- c.write(led[2]);
- n++;
- });
- console.log("finished publishing - "+n);
-}
-
-function serverconnection(c) {
-
- scon = c;
-
- c.on("end", function() {
- console.log("Server disconnected");
- });
-
- c.on("data", function(buffer) {
- parseBuffer(buffer, c);
- });
-
- console.log("Service connected from: " + c.remoteAddress);
-
- //c.write("hello\r\n");
-}
-
-console.log("Prefixes created, starting server");
-
-var server = net.createServer(serverconnection);
-
-server.listen(179, function() {
- console.log("Server bound");
-});
+++ /dev/null
-var readline = require('readline');
-var net = require('net');
-
-
-
-// ---- vars
-
-var asPaths = new Array();
-var readyToSend = false;
-var currentPrompt;
-var rl;
-var nCons = 0;
-var nSent = 0;
-var myAS;
-var myIP;
-var server;
-var cState = "starting";
-var currentIPa = 1;
-var currentIPb = 0;
-var currentIPc = 0;
-var timerIntervalObject;
-var currentCon = 0;
-var sequentialIPs = true;
-var usePrivateRanges = false;
-var randomNextHop = false;
-var timeBetweenUpdates = 20;
-var routesPerUpdate = 100;
-var updatesPerInterval = 40;
-
-// ---- vars
-
-
-if(typeof process.argv[2] == "undefined") {
- usage();
-}
-
-if(typeof process.argv[3] == "undefined") {
- usage();
-}
-
-function usage() {
- console.log("Usage: "+process.argv[1]+" MyAS MyIP");
- process.exit(1);
-}
-
-
-
-
-
-// ----------- startup
-
-myAS = process.argv[2];
-myIP = process.argv[3];
-
-
-startCLI();
-doPrompt();
-createAsPathArray(1048576);
-startServer();
-cState = "idle";
-doPrompt();
-
-// ----------- startup
-
-
-
-
-
-
-
-
-
-
-// --------- CLI
-
-function updatePrompt() {
- currentPrompt = "("+myAS+"/"+myIP+") "+cState+":"+nCons+"/"+nSent+" ("+currentIPa+"."+currentIPb+"."+currentIPc+") > ";
-}
-
-function startCLI() {
- currentPrompt = "("+myAS+"/"+myIP+") starting... > ";
-
- rl = readline.createInterface({
- input: process.stdin,
- output: process.stdout
- });
-
- rl.on('line', function (cmd) {
- switch(cmd) {
-
- case "?":
- case "help":
- case "h":
- printCLIUsage();
- break;
- case "r":
- currentIPa = 1;
- currentIPb = 0;
- currentIPc = 0;
- break;
- case "a":
- togglePrivateRange();
- break;
- case "t":
- toggleIPChoice();
- break;
- case "m":
- toggleRandomNextHop();
- break;
- case "s":
- printStatus();
- break;
- case "u":
- startUpdates();
- break;
- case "p":
- stopUpdates();
- break;
- case "q":
- case "quit":
- case "end":
- rl.close();
- process.exit(0);
- break;
- case "":
- break;
- }
-
- doPrompt();
- });
-}
-
-
-function printStatus() {
- console.log("---- Status ----");
- console.log("Currently "+cState);
- console.log("Private ranges: "+usePrivateRanges);
- console.log("Sequential publication: "+sequentialIPs);
- console.log("Random NextHop: "+randomNextHop);
- console.log("Number of connected peers: " + nCons);
- console.log("Number of routes published: " + nSent);
- console.log("My IP address: " + myIP);
- console.log("My ASN: " + myAS);
- console.log("Current IP (for sequential publications): " + currentIPa + "." + currentIPb + "." + currentIPc + "0/24");
- console.log("AS path table size: "+asPaths.length);
-}
-
-function togglePrivateRange() {
- if(usePrivateRanges) {
- console.log("Switching off private range publication");
- usePrivateRanges = false;
- } else {
- console.log("Switching on private range publication");
- usePrivateRanges = true;
- }
-}
-
-function toggleIPChoice() {
- if(sequentialIPs) {
- sequentialIPs = false;
- console.log("Switching to random IP addresses");
- } else {
- console.log("Switching to sequential IP addresses");
- sequentialIPs = true;
- }
-}
-
-
-function toggleRandomNextHop() {
- if(randomNextHop) {
- randomNextHop = false;
- console.log("Switching form random next-hop to next-hop-self");
- } else {
- randomNextHop = true;
- console.log("Switching form next-hop-self to random next-hop");
- }
-
-}
-
-function doPrompt() {
- updatePrompt();
- rl.setPrompt(currentPrompt);
- rl.prompt();
-}
-
-function printCLIUsage() {
- console.log("Help");
- console.log("\th[elp],? - this help menu");
- console.log("\tu - start sending route updates to connected peers");
- console.log("\tp - pause sending route updates to connected peers");
- console.log("\ta - toggle use of private ranges");
- console.log("\tm - toggle between random next hop and my ip as next hop (randomise last octet - assumes /24 on the ip address of this node)");
- console.log("\ts - status");
- console.log("\tt - toggles between random and sequential addressing");
- console.log("\tr - reset IP range back to beginning");
- console.log("\tq[uit],exit,end - Quit");
- console.log("Prompt layout");
- console.log("\t(AS/IP) state:connections/updates-sent (current-route)");
-}
-
-function updateState(newstate) {
- if(cState == newstate) {
- doPrompt();
- return;
- }
-
- //starting
- if(newstate == "starting") {
- cState = newstate;
- doPrompt();
- return;
- }
-
- // idle
- if(newstate == "idle") {
- cState = newstate;
- doPrompt();
- return;
- }
-
- // connected
- if(newstate == "connected") {
- cState = newstate;
- doPrompt();
- return;
- }
-
- // ready
- if(newstate == "ready") {
- if(cState == "sending") return;
- cState = newstate;
- doPrompt();
- return;
- }
-
- // sending
- if(newstate == "sending") {
- cState = newstate;
- doPrompt();
- return;
- }
-
- if(newstate == "stopping") {
- cState = "stopping";
- doPrompt();
- return;
- }
-
-
-}
-
-// ------------- CLI
-
-
-
-
-
-
-
-
-
-
-
-
-
-//------------- network
-
-function startUpdates() {
- if(cState == "sending") {
- console.log("LOG: already sending...");
- return;
- }
-
- if(cState != "ready") {
- console.log("LOG: not ready to send yet");
- return;
- }
-
-
- // here goes nothing
- console.log("LOG: starting update sending");
- updateState("sending");
- timerIntervalObject = setInterval(sendUpdate, timeBetweenUpdates);
- //console.log("LOG: stopped sending updates");
-}
-
-
-function sendUpdate()
-{
- if(cState != "sending") {
- console.log("oh, your killing me now?");
- clearInterval(timerIntervalObject);
- updateState("ready");
- } else {
- for(var i=0; i<updatesPerInterval; i++) {
- var msg = constructUpdateMessage(routesPerUpdate);
- currentCon.write(msg);
- }
- }
-
-}
-
-
-function stopUpdates() {
- if(cState != "sending") {
- console.log("LOG: not in a sending state, cant pause.");
- return;
- }
-
- updateState("stopping");
-}
-
-function serverconnection(c) {
-
- scon = c;
-
- c.on("end", function() {
- //console.log("Server disconnected");
- nCons--;
- if(nCons < 1) {
- cState = "idle";
- doPrompt();
- }
- currentCon = 0;
- });
-
- c.on("data", function(buffer) {
- parseBuffer(buffer, c);
- });
-
-
- currentCon = c;
-
- cState = "connected";
- nCons++;
- doPrompt();
-
-
-
- console.log("LOG: connection from "+c.remoteAddress);
- doPrompt();
-
- //c.write("hello\r\n");
-}
-
-
-function startServer() {
- server = net.createServer(serverconnection);
-
- server.listen(179, function() {
- //console.log("LOG: Server bound");
- doPrompt();
- });
-
-}
-
-//------------- network
-
-
-
-
-
-
-
-
-
-
-// -------------- BGP
-
-function getRandomNextHop() {
- ipa = 1+Math.round(Math.random()*120);
- ipb = 1+Math.round(Math.random()*254);
- ipc = 1+Math.round(Math.random()*254);
- ipd = 1+Math.round(Math.random()*254);
-
- return ipa+"."+ipb+"."+ipc+"."+ipd;
-
-}
-
-function getNextIP() {
- // split into octets
- //var currentIPa = 1;
- //var currentIPb = 0;
- //var currentIPc = 0;
-
-
- if(sequentialIPs) {
- currentIPc++;
- if(currentIPc > 254) {
-
- currentIPb++;
- currentIPc = 0;
- if(!usePrivateRanges) if(currentIPb == 168 && currentIPa == 192) currentIPb++;
- if(currentIPb > 254) {
- currentIPa++;
- currentIPb = 0;
-
- // dont publish bogons or 127
- if(!usePrivateRanges) {
- if(currentIPa == 10) currentIPa++;
- if(currentIPa == 127) currentIPa++;
- if(currentIPa == 128) currentIPa++;
- if(currentIPa == 172) currentIPa++;
- }
- }
- }
-
- if(currentIPa > 223) {
- console.log("LOG: hit the end of the range, wrapping");
- currentIPa = 1;
- currentIPb = 0;
- currentIPc = 0;
- }
-
- //console.log("created "+a+"."+b+"."+c+" from "+i);
- return currentIPa+"."+currentIPb+"."+currentIPc;
- } else {
- ipa = 1+Math.round(Math.random()*223);
- ipb = 1+Math.round(Math.random()*254);
- ipc = 1+Math.round(Math.random()*254);
-
-
- if(!usePrivateRanges) {
- if(ipb == 168 && ipa == 192) ipb++;
- if(ipa == 10) ipa++;
- if(ipa == 127) ipa++;
- if(ipa == 128) ipa++;
- if(ipa == 172) ipa++;
- }
-
- return ipa+"."+ipb+"."+ipc;
- }
-
-}
-
-function getASPath() {
- var n = Math.random();
-
- return asPaths[Math.round(asPaths.length*n)];
-}
-
-function constructUpdateMessage(n_up) {
- var bsize = 0;
-
- var aspath = getASPath();
- //console.log("aspath is");
- //console.log(aspath);
-
- // first the header components
- bsize += 16;
-
- // next the length component
- bsize += 2;
-
- // next the n unfeasible
- bsize += 2;
-
- // next, path attr length
- bsize += 2;
-
-
- // now we begin the path attrs
- // first origin - simple
- var aspathn = 4;
-
- // next as path - hard, flag + type + len + aspath segment
- aspathn += 3;
-
- // as path segment size = 1 (type), + 1 (len) + as's*2
- var aspathlen = ((aspath.length+1)*2)+1+1;
- aspathn += aspathlen;
-
- // now next hop attrs = flag (1) + type (1) + len (1) + octets (4);
- aspathn += 7;
- bsize += aspathn;
-
- // now nlri = prefix len (1) + prefix fixed in our case (3)
- bsize += 4*n_up;
-
- // fudge
- bsize+=1;
-
- //console.log("size: " + bsize + ", an: " + aspathn + " al:" + aspathlen);
- var buf = new Buffer(bsize);
- var bp = 0;
-
- // now lets create the buffer
- buf.fill(0xff, bp, bp+16);
- bp+=16;
- buf.writeUInt16BE(bsize, bp);
- bp+=2;
- buf.writeUInt8(2, bp);
- bp++;
- buf.writeUInt16BE(0, bp);
- bp+=2;
- buf.writeUInt16BE(aspathn, bp);
- bp+=2;
-
- // path attr
- // origin
- buf.writeUInt8(0x40, bp);
- bp++;
- buf.writeUInt8(1, bp);
- bp++;
- buf.writeUInt8(1, bp);
- bp++;
- buf.writeUInt8(0, bp);
- bp++;
-
- // as path
- buf.writeUInt8(0x40, bp);
- bp++;
- buf.writeUInt8(2, bp);
- bp++;
- buf.writeUInt8(aspathlen, bp);
- bp++;
- buf.writeUInt8(2, bp);
- bp++;
- buf.writeUInt8(aspath.length+1, bp);
- bp++;
- //console.log("writing in my aspath: "+myas);
- buf.writeUInt16BE(myAS, bp);
- bp+=2;
- aspath.forEach(function (ed) {
- //console.log("writing in aspath: "+ed);
- buf.writeUInt16BE(ed, bp);
- bp+=2;
- });
-
- // next hop
- buf.writeUInt8(0x40, bp);
- bp++;
- buf.writeUInt8(3, bp);
- bp++;
- buf.writeUInt8(4, bp);
- bp++;
-
-// if(randomNextHop) {
-// rnh = getRandomNextHop();
-// rnh.split(".").forEach(function (ed) {
-// //console.log("writing in next hop info: " + ed);
-// buf.writeUInt8(parseInt(ed), bp);
-// bp++;
-// });
- myIP.split(".").forEach(function (ed) {
- //console.log("writing in next hop info: " + ed);
- buf.writeUInt8(parseInt(ed), bp);
- bp++;
- });
-
- if(randomNextHop) {
- nhns = Math.round(1+(Math.random()*250));
- bp--
- buf.writeUInt8(nhns, bp);
- bp++;
- }
-
- // last, nlri
- for(var nn=0; nn < n_up; nn++) {
- //console.log("bsize: "+bsize+" bp "+bp);
- buf.writeUInt8(24, bp);
- bp++;
- var ip = getNextIP();
- ip.split(".").forEach(function(ed){
- //console.log("Writing in nlri: "+ed);
- buf.writeUInt8(parseInt(ed), bp);
- bp++;
- });
- }
-
-
- nSent += n_up;
-
- //console.log("buf is:");
- //console.log(buf);
- //console.log(buf.length);
-
- return buf;
-}
-
-function createAsPathArray(size) {
- for(var i=0; i<size; i++) {
- asPaths[i] = createaspath(i);
- }
-}
-
-
-function createaspath(i) {
- var n=(i%5)+2;
- var as = 1024;
- var ret = new Array();
-
- for(var t=0; t<n; t++) {
- i = i << 1;
- as = 1024 + (i%30000);
- ret[t] = as;
- }
- return ret;
-}
-
-function parseBuffer(b, c) {
- var len = b.readUInt16BE(16);
- var type = b.readUInt8(18);
-
- //console.log("got input: " + len + ", type: " + type);
-
- if(type == 1) {
- var vers = b.readUInt8(19);
- var as = b.readUInt16BE(20);
- var ht = b.readUInt16BE(22);
- var ot1 = b.readUInt8(24);
- var ot2 = b.readUInt8(25);
- var ot3 = b.readUInt8(26);
- var ot4 = b.readUInt8(27);
- var opl = b.readUInt8(28);
- //console.log("got open type, vers: "+vers+", as: " + as);
- //console.log("ht: " + ht + ", id: "+ot1+"."+ot2+"."+ot3+"."+ot4+", opl: "+opl);
-
-
- //console.log("sending our open type");
- var out = new Buffer(29);
-
-
- out.fill(0xff, 0, 16);
- out.writeUInt16BE(29, 16);
- out.writeUInt8(1, 18);
- out.writeUInt8(4, 19);
- out.writeUInt16BE(myAS, 20);
- out.writeUInt16BE(90, 22);
- out.writeUInt8(10, 24);
- out.writeUInt8(99, 25);
- out.writeUInt8(99, 26);
- out.writeUInt8(1,27);
- out.writeUInt8(0,28);
-
- c.write(out);
- } else if(type == 4) {
- //console.log("writing keepalive - exact as sent");
- console.log("LOG: keepalive from remote ("+c.remoteAddress+")");
- c.write(b);
- readyToSend = true;
- updateState("ready");
- //if(updateSent ==0) beginUpdateSend(c);
- } else if(type == 2) {
- //console.log("got update...");
- console.log("LOG: update from remote ("+c.remoteAddress+")");
- readyToSend = true;
- updateState("ready");
- } else if(type == 3) {
- var loc = b.readUInt8(19);
- var msg = b.readUInt8(20);
- var fromremote = parseNotifyMessage(loc, msg);
- console.log("LOG: Notification message from server ("+loc+"/"+msg+"): " + fromremote);
- } else {
- //console.log("sending end...");
- c.end();
- }
-
- doPrompt();
-
-}
-
-function parseNotifyMessage(loc, msg) {
- var retmsg = "";
- switch(loc) {
- case 1:
- retmsg += "Header Error - ";
- if(msg == 1) retmsg += "Not Synchronised";
- else if(msg == 2) retmsg += "Bad Message Length";
- else if(msg == 3) retmsg += "Bad Message Type";
- else retmsg += "Unknown error code: "+msg;
- break;
- case 2:
- retmsg += "Open Error - ";
- if(msg == 1) retmsg += "Unsupported Version";
- else if(msg == 2) retmsg += "AS Missmatch";
- else if(msg == 3) retmsg += "Bad BGP ID";
- else if(msg == 4) retmsg += "Unsupported Option Parameter";
- else retmsg += "Unknown error code: "+msg;
- break;
- case 3:
- retmsg += "Update Error - ";
- if(msg == 1) retmsg += "Malformed attribute list";
- else if(msg == 2) retmsg += "Unknown recognised well-known attribute";
- else if(msg == 3) retmsg += "Missing well-known attribute";
- else if(msg == 4) retmsg += "Attribute flag error";
- else if(msg == 5) retmsg += "Attribute length error";
- else if(msg == 6) retmsg += "Invalid origin attribute";
- else if(msg == 7) retmsg += "Deprecated error message (other end is waaay too old)";
- else if(msg == 8) retmsg += "Invalid next hop attribute";
- else if(msg == 9) retmsg += "Optional attribute error";
- else if(msg == 10) retmsg += "Invalid network field";
- else if(msg == 11) retmsg += "Malformed AS path";
- else retmsg += "Unknown error code: "+msg;
- break;
- case 4:
- retmsg += "Hold Timer Expired - ";
- break;
- case 5:
- retmsg += "Finite State Machine error - "+msg;
- break;
- default:
- retmsg += "Unknown erorr type - "+msg;
- }
-
- return retmsg;
-
-}
-
-//-------------- BGP
\ No newline at end of file