Re: ssh channel window and adjustment

[Markus Friedl <markus%openbsd.org@localhost>]

On Tue, Jan 14, 2003 at 08:15:01AM -0800, Sombody Somewhere wrote:
> Hi all,
> 
> I have a simple question about ssh channel window and
> its adjustment. Maybe this is my mistake and I haven't
> found the right info about it and sorry if it is a
> lame
> question for you. I am interested in the following
> issues:
> 
> 1. Does a SSH_MSG_CHANNEL_WINDOW_ADJUST message
> consumes window size?

no. only SSH_MSG_CHANNEL_DATA and SSH_MSG_CHANNEL_EXTENDED_DATA
consume window size.

> 2. Is there a specific rule when to send
> SSH_MSG_CHANNEL_WINDOW_ADJUST and when
> not
> to send it ?

no. depends on how you want to do flow control.

> 3. What must a peer do, when it has to send data but
> has no channel window ?

send data on other channels, if possible.
buffer data received from other sources, if possible.

-m