IPFS throws a random DNS error

[JayArrowz]

This error is continuously thrown every ms
When i added a file to IPFS, 10 minutes later it throws a random error:

[JayArrowz]

[JayArrowz]

[richardschneider]

This indicates that a Multicast DNS packet contained a domain name with a byte greater than 0x7F. This is highly unusual in that normally only printable 7-bit ASCII is used for a domain name. Was it a work network or home network you were running on?

The exception is caught by MulticastService.OnDnsMessage and is just logged, so you app will not suffer an unhandled exception.

[richardschneider]

When i added a file to IPFS, 10 minutes later it throws a random error:

Multicast DNS is used by IPFS to discover other peers on the local network. It starts listening when the IPFS engine is started. The engine is started when you add/get a file from IPFS.

Why it takes 10 minutes after the start to get a malformed packet depends on the devices that are broadcasting on the local network.

I'll write a small program to log Multicast DNS packets and abort when a malformed packet it received.

[richardschneider]

@atlassanjay Could you run the traffic program in net-mdns. It will print all MDNS packets and abort when the packet cannot be decoded.

[JayArrowz]

Here is the first log, i am trying to capture the exact wireshark packet that causes this:

https://app.zenhub.com/files/170142194/bd6af375-8579-481b-a859-991316c297f9/download

Currently i see on a Apple device causing this. Can it be that Apple devices use UTF8 in their DNS packets?

[richardschneider]

Will fix Makaretu.Dns and make a new release for IPFS Engine.

[richardschneider]

@atlassanjay could you get the latest net-mdns and rerun the traffic program?