ndbeals/winssh-pageant

Complete hang

drwonky opened this issue · 7 comments

drwonky commented

Hello,

I installed the OpenSSH package from the Win32-OpenSSH repo as directed in the README. I added it to the PATH. I then started winssh-pageant.exe and tried to use MobaXterm and PuTTY, but both hang when they try to talk to Pageant (proxy).

I confirmed the named pipes a present and that ssh-add -l works fine in Powershell.

This is a Windows 10 VM with various nannies installed to protect it.

I'm at a loss as to what the hang is caused by. I'm assuming there is a failure to communicate (i/o blocking).

Relevant pipes:

\\.\pipe\openssh-ssh-agent
\\.\pipe\pageant.USERNAME.1a631cca5dbd4ff4c28f70c6cbcb1a2aa0c7f32e5b906367e1e9f85177e22b4d
drwonky commented

More info:
Using ssh-pageant in cygwinx works, but if I try to use MobaXterm or PuTTY, they hang and ssh-pageant fails to work after that.

Killing winssh-pageant unblocks all waiting processes.

ndbeals commented

Thanks for the issue report, I'll look into this further, which version of putty are you using?

drwonky commented

Putty 0.76

andreisolo0 commented

Same issue here, after a first SSH login with success any other connection hangs.
Version for Putty 0.77
Tested with Putty 0.75 and it seems to work

tsuchim commented

The same problem occurs in my version 0.77 on Windows10 environment.

1Dragoon commented

The problem is the win32 callback is hanging while waiting for the pipe. Sometimes that can be caused by problems with your agent, sometimes it's because we're not properly handling an agent error response and then waiting indefinitely for further data that will never come. #23 fixes the reasons I've run into this problem, though YMMV.

ndbeals commented

This should be fixed with the latest release, find it here: https://github.com/ndbeals/winssh-pageant/releases/tag/v2.3.0

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