Mailing List Archive

[Bug 1395] "session_input_channel_req: no session" should be a debug message
https://bugzilla.mindrot.org/show_bug.cgi?id=1395


Damien Miller <djm@mindrot.org> changed:

What |Removed |Added
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CC| |djm@mindrot.org




--- Comment #1 from Damien Miller <djm@mindrot.org> 2008-01-20 09:53:37 ---
why is putty sending window probe requests on these channels anyway?

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[Bug 1395] "session_input_channel_req: no session" should be a debug message [ In reply to ]
https://bugzilla.mindrot.org/show_bug.cgi?id=1395





--- Comment #2 from Ben Harris <bjh21@bjh21.me.uk> 2008-01-22 05:10:43 ---
It's PuTTY's mechanism for deciding what channel window size it should
use. From the relevant wishlist item:

The basic idea is that when the connection isn't being limited by our
ability to process data, we want to ensure that the window size as seen
by
the server never drops to zero. Measuring the server's view of the
window
size is done by arranging for it to acknowledge every
SSH_MSG_CHANNEL_WINDOW_ADJUST, or rather an SSH_MSG_CHANNEL_REQUEST
sent
just before it. That way we can tell when it its outgoing data stream
it
recieved the window adjustment, and thus how small the server's view of
the window got.
<http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/flow-control>

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[Bug 1395] "session_input_channel_req: no session" should be a debug message [ In reply to ]
https://bugzilla.mindrot.org/show_bug.cgi?id=1395





--- Comment #3 from Ben Harris <bjh21@bjh21.me.uk> 2008-01-22 05:13:19 ---
Note in case it's causing confusion: this is the flow-control window,
as set by SSH_MSG_CHANNEL_WINDOW_ADJUST, not the terminal window, as
set by SSH_MSG_CHANNEL_REQUEST("window-change").

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