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Fixed tunnel ping/pong that would corrupt traffic.

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This commit is contained in:
Ylian Saint-Hilaire 2020-07-19 14:45:29 -07:00
parent e1a7c94b22
commit 58adf804da
5 changed files with 13 additions and 2 deletions
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agents/MeshCentralRouter.exe
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agents/MeshCmd-signed.exe
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agents/MeshCmd64-signed.exe
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3
agents/meshcmd.js
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@ -2227,7 +2227,8 @@ function OnWebSocket(msg, s, head) {
if (this.parent.tunneling == false) { if (this.parent.tunneling == false) {
msg = msg.toString(); msg = msg.toString();
if ((msg == 'c') || (msg == 'cr')) { if ((msg == 'c') || (msg == 'cr')) {
this.parent.tunneling = true; this.pipe(this.parent.tcp); this.parent.tcp.pipe(this); debug(1, "Tunnel active"); // Pipe the connection, but don't pipe text websocket frames into the TCP socket.
this.parent.tunneling = true; this.pipe(this.parent.tcp, { dataTypeSkip: 1 }); this.parent.tcp.pipe(this); debug(1, "Tunnel active");
} else if ((msg.length > 6) && (msg.substring(0, 6) == 'error:')) { } else if ((msg.length > 6) && (msg.substring(0, 6) == 'error:')) {
console.log(msg.substring(6)); console.log(msg.substring(6));
disconnectTunnel(this.tcp, this, msg.substring(6)); disconnectTunnel(this.tcp, this, msg.substring(6));

12
agents/meshcore.js
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@ -1179,7 +1179,10 @@ function createMeshCore(agent) {
// Called when we get data from the server for a TCP relay (We have to skip the first received 'c' and pipe the rest) // Called when we get data from the server for a TCP relay (We have to skip the first received 'c' and pipe the rest)
function onTcpRelayServerTunnelData(data) { function onTcpRelayServerTunnelData(data) {
if (this.first == true) { this.first = false; this.pipe(this.tcprelay); } // Pipe Server --> Target if (this.first == true) {
this.first = false;
this.pipe(this.tcprelay, { dataTypeSkip: 1 }); // Pipe Server --> Target (don't pipe text type websocket frames)
}
} }
function onTunnelClosed() { function onTunnelClosed() {
@ -2279,6 +2282,13 @@ function createMeshCore(agent) {
if (sdp != null) { ws.write({ type: 'answer', ctrlChannel: '102938', sdp: sdp }); } if (sdp != null) { ws.write({ type: 'answer', ctrlChannel: '102938', sdp: sdp }); }
break; break;
} }
case 'ping': {
ws.write("{\"ctrlChannel\":\"102938\",\"type\":\"pong\"}"); // Send pong response
break;
}
case 'pong': { // NOP
break;
}
case 'rtt': { case 'rtt': {
ws.write({ type: 'rtt', ctrlChannel: '102938', time: obj.time }); ws.write({ type: 'rtt', ctrlChannel: '102938', time: obj.time });
break; break;