sshnet / sshnet/SSH.NET

SSH Client session is terminated but no event is triggered

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#607 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C#
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Description

There is an issue where the session is closed and ErrorOccured will not be triggered.
We have inserted the logging to the library and attached here in the issue.

We found that at 2019-12-13 09:18:07.319, the client sent 'ChannelCloseMessage' to the server but after that from 2019-12-13 09:18:07.410 onwards, the client again sent a few 'ChannelDataMessage' to the server again.

Finally at 2019-12-13 09:18:07.521, the server replied 'DisconnectMessage' and the client closed the SSH session completely without returning any events.

issue_nonexistent_channel.txt

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Research direction

Start with the attached issue_nonexistent_channel.txt log and trace the SSH session handling around the ChannelCloseMessage, subsequent ChannelDataMessage messages, and final DisconnectMessage. The fix is complete when this termination path triggers the expected ErrorOccured event instead of closing silently; no source file or test is identified in the issue.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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