Fix for SSH remoting when SSH client abruptly terminates #4123
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iSazonov
reviewed
Jun 28, 2017
| @@ -1636,4 +1636,7 @@ All WinRM sessions connected to Windows PowerShell session configurations, such | |||
| <data name="InvalidRoleCapabilityFileExtension" xml:space="preserve"> | |||
| <value>The provided role capability file {0} does not have the required .psrc extension.</value> | |||
| </data> | |||
| <data name="SSHTerminated" > | |||
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Maybe SSHAbruptlyTerminated ?
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Sure, will change.
mirichmo
reviewed
Jun 28, 2017
| if (string.IsNullOrEmpty(error) || | ||
| if (error == null) | ||
| { | ||
| return error; |
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Why did you decide to return null here and throw in the calling function? Why not just throw here and make the ReadError() function always return non-null strings?
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No special reason except that I think of ReadError() helper method as a wrapper to StreamReader. But I agree that it would be cleaner to just throw in ReadError()
mirichmo
approved these changes
Jun 28, 2017
|
@iSazonov Do you have any additional comments or concerns? |
|
LGTM. |
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This PR is for Issue #4122
If the SSH client process that PowerShell is using for the SSH transport terminates abruptly the StreamReader will return null instead of closing the pipe for a normal process exit.
The current error stream reading code ignores null StreamReader values resulting in a hang where the remote session never ends.
Fix is to throw an error when this occurs.