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add network test feature (PING/PONG with latency stats)

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New frame types PING (0x0B) and PONG (0x0C), each carrying an 8-byte
nonce. Server echoes PING nonce verbatim in PONG. Client sends pings
at random 10-100ms intervals, correlates nonces to measure RTT.

Stats shown live: sent/recv counts, loss %, average latency, jitter
(mean absolute delta of consecutive RTTs). Test button toggles on/off.

Updated both Rust server (echo in main.rs) and C# client (PingTest.cs,
SessionManager routing, MainForm Test button + stats label).
This commit is contained in:
Mute
2026-08-13 08:28:59 +00:00
parent a2d3643d69
commit 279af33fd8
7 changed files with 242 additions and 4 deletions
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win/gatuna-client/MainForm.cs
+46 -3
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@@ -7,16 +7,19 @@ public partial class MainForm : Form
readonly SessionManager _sessions = new();
readonly ComboBox _deviceBox = new();
readonly Button _discoverBtn = new();
readonly Button _testBtn = new();
readonly Label _serverLabel = new();
readonly Label _pingStatsLabel = new();
readonly ListView _listView = new();
readonly Label _statusLabel = new();
TunnelLink? _link;
PingTest? _pingTest;
public MainForm()
{
Text = "gatuna";
Width = 520;
Height = 380;
Height = 420;
StartPosition = FormStartPosition.CenterScreen;
Icon = SystemIcons.GetStockIcon(StockIconId.NetworkConnect, 32);
InitializeComponents();
@@ -54,15 +57,27 @@ public partial class MainForm : Form
_discoverBtn.Click += OnDiscover;
Controls.Add(_discoverBtn);
_testBtn.Text = "Test";
_testBtn.Left = _discoverBtn.Right + 8; _testBtn.Top = _discoverBtn.Top;
_testBtn.Width = 60;
_testBtn.Click += OnTest;
Controls.Add(_testBtn);
_serverLabel.Left = pad; _serverLabel.Top = _discoverBtn.Bottom + 8;
_serverLabel.Width = ClientSize.Width - pad * 2;
_serverLabel.AutoEllipsis = true;
_serverLabel.Text = "Server: not connected";
Controls.Add(_serverLabel);
_listView.Left = pad; _listView.Top = _serverLabel.Bottom + 8;
_pingStatsLabel.Left = pad; _pingStatsLabel.Top = _serverLabel.Bottom + 4;
_pingStatsLabel.Width = ClientSize.Width - pad * 2;
_pingStatsLabel.AutoEllipsis = true;
_pingStatsLabel.Text = "";
Controls.Add(_pingStatsLabel);
_listView.Left = pad; _listView.Top = _pingStatsLabel.Bottom + 8;
_listView.Width = ClientSize.Width - pad * 2;
_listView.Height = 200;
_listView.Height = 180;
_listView.View = View.Details;
_listView.FullRowSelect = true;
_listView.CheckBoxes = true;
@@ -106,6 +121,34 @@ public partial class MainForm : Form
_statusLabel.Text = "discovering...";
}
void OnTest(object? s, EventArgs e)
{
if (_pingTest != null && _pingTest.Running)
{
_sessions.StopPing();
_pingTest = null;
_testBtn.Text = "Test";
return;
}
_pingTest = _sessions.StartPing();
if (_pingTest == null)
{
MessageBox.Show("Discover a server first.");
return;
}
_pingTest.StatsUpdated += stats => this.Invoke(() =>
{
_pingStatsLabel.Text =
$"sent: {stats.Sent} recv: {stats.Received} " +
$"loss: {stats.LossPct:F1}% " +
$"avg: {stats.AvgLatencyMs:F1}ms " +
$"jitter: {stats.JitterMs:F1}ms";
});
_testBtn.Text = "Stop";
_pingStatsLabel.Text = "pinging...";
}
void PopulateList(string hostname, byte[] mac, UpstreamEntry[] entries)
{
var macStr = string.Join(":", mac.Select(b => b.ToString("X2")));