Updating ssh protocol to support disconnect message and language in packet #1455
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…ets. Updating client to allow setting the reason message and language when ending the client.
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This allows more fine grained control of the disconnect message packet. Allowing custom authentication implementations to communicate to clients the reason for connection failure.
A common pattern that openssh implements is an authentication failure limit. Resulting in the following message:
ssh2 js can implement this but there was no way to pass back a human readable message or change the reason to PROTOCOL_ERROR: 2 which is most appropriate for a "Too many authentication failures" message.
Fall back is set to reason: BY_APPLICATION so those who do not implement custom authentication exit patterns won't be affected.