Question Unity WebRTC restrict DataChannel ports

Hello everyone!

For my project I would like to restrict the ports that can be used for DataChannels to a certain [min, max] range.

Adding the respective properties to the

RTCConfiguration

was the easy part, now I need to add this to the Unity WebRTC plugin. If I am not mistaken, I should create my own

cricket::BasicPortAllocator

(for which I can set a port range) to the

PeerConnectionDependencies

. This is where I am having problems, since I do not have access to the objects needed to create one (i.e. the

ConnectionContext

).

I would very much like to avoid going another level deeper and patch this in the libwebrtc. Is there a way to create my own

BasicPortAllocator

for the dependencies? Or maybe a completely different way to restrict the port range?

Thanks in advance for any input on this topic!

Best regards,
Patrick

 

Hello Kazuki!

The question is not from me, but I guess it is the same issue. I found via some detours, that the WebRTC implementation for nodejs, can do this (see the RTCPeerConnection constructor). As far as I can see, the Unity Plugin uses the same library and could use this port allocator, if one had access to the used network manager, and socket factory.

Best regards,
Patrick