ESP32-C6 (ESP32-C6 (QFN40) (revision v0.0))

[BoBoBaSs84]

Hi,

Is this device supported?
Could I use the ESP32_C6_THREAD image for it?

[josesimoes]

You are to specify the target name --target ESP32_C6_THREAD instead of --platform esp32
This is a target name that kind of follows out of the naming pattern and nanoff can't figure out the correct name.

[BoBoBaSs84]

Dug up this espressif/esp-idf#3762

[josesimoes]

I can only agree with you on the above.
Can you intercept the ssid and the pass and output their length, just for a sanity check.

[BoBoBaSs84]

So...
When doing this:

using nanoFramework.Networking;
using System;
using System.Diagnostics;
using System.Threading;

namespace BB84.PowerSupply;

public class Program
{
	private const string SSID = "2D3EBBBE9CCB004E3E99C21CB5A3A705";
	private const string PASSWORD = "2C12A4F67D823BE13672F3BFB04B251D";

	public static void Main()
	{
		try
		{
			Debug.WriteLine("Connecting to WiFi network...");
			Debug.WriteLine($"SSID: {SSID}");
			Debug.WriteLine($"SSID Length: {SSID.Length}");
			Debug.WriteLine($"PASSWORD: {PASSWORD}");
			Debug.WriteLine($"PASSWORD Length: {PASSWORD.Length}");

			CancellationTokenSource cs = new(60000);
			bool success = WifiNetworkHelper.ConnectDhcp(SSID, PASSWORD, token: cs.Token);

			if (!success)
			{
				Debug.WriteLine($"Can't get a proper IP address and DateTime, error: {WifiNetworkHelper.Status}.");
				if (WifiNetworkHelper.HelperException != null)
				{
					Debug.WriteLine($"Exception: {WifiNetworkHelper.HelperException}");
				}
				return;
			}
		}
		catch (Exception ex)
		{
			Debug.WriteLine($"Exception: {ex}");
			return;
		}
	}
}

The output is pretty clear:

Connecting to WiFi network...
SSID: 2D3EBBBE9CCB004E3E99C21CB5A3A705
SSID Length: 32
PASSWORD: 2C12A4F67D823BE13672F3BFB04B251D
PASSWORD Length: 32
    ++++ Exception System.ArgumentOutOfRangeException - 0x00000000 (1) ++++
    ++++ Message: 
    ++++ System.Net.NetworkInformation.Wireless80211Configuration::ValidateConfiguration [IP: 0023] ++++
    ++++ System.Net.NetworkInformation.Wireless80211Configuration::SaveConfiguration [IP: 0004] ++++
    ++++ nanoFramework.Networking.WifiNetworkHelper::ScanAndConnect [IP: 00be] ++++
    ++++ nanoFramework.Networking.WifiNetworkHelper::ConnectDhcp [IP: 000d] ++++
    ++++ BB84.PowerSupply.Program::Main [IP: 0064] ++++
Exception thrown: 'System.ArgumentOutOfRangeException' in System.Net.dll
Can't get a proper IP address and DateTime, error: 7.
Exception: System.ArgumentOutOfRangeException: Exception was thrown: System.ArgumentOutOfRangeException
The thread '<No Name>' (1) has exited with code 0 (0x0).
The program '[1] .NET nanoFramework application: Managed' has exited with code 0 (0x0).
Done.
Waiting for debug commands...

This clearly conflicts with the RFC 3700 ..

   The WLAN SSID extension is identified by id-pe-wlanSSID.

      id-pe  OBJECT IDENTIFIER  ::=  { iso(1) identified-organization(3)
               dod(6) internet(1) security(5) mechanisms(5) pkix(7) 1 }

      id-pe-wlanSSID  OBJECT IDENTIFIER  ::=  { id-pe 13 }

   The syntax for the WLAN SSID extension is:

      SSIDList  ::=  SEQUENCE SIZE (1..MAX) OF SSID

      SSID  ::=  OCTET STRING (SIZE (1..32))

So my first guess is that this ..

            // check password and SSID length
            if ((_password.Length    >= MaxPasswordLength) || 
                (_ssid.Length        >= MaxSsidLength))

should be this ..

            // check password and SSID length
            if ((_password.Length    > MaxPasswordLength) || 
                (_ssid.Length        > MaxSsidLength))

When passing the null terminator proactively, it works when the ssid is not longer that 31 chars.

private const string SSID = "2D3EBBBE9CCB004E3E99C21CB5A3A70\0";

So I can't look on the native side of things here maybe @josesimoes you can help.
Should I raise an Issue?

[josesimoes]

Native storage size is indeed 32 and it doesn't seem to require any extra room for terminator.
https://github.com/nanoframework/nf-interpreter/blob/main/src/HAL/Include/nanoHAL_Network.h#L268

Therefore, those checks should be fixed as you've suggested. Care to go for a PR? 😉

[BoBoBaSs84]

Will do that!

[BoBoBaSs84]

Done.

nanoframework/System.Net#337