Hi all,
When a client requests dynamic remote forwarding with -R it delays
forking into the background. In ssh.c we see
if (options.fork_after_authentication) {
if (options.exit_on_forward_failure &&
options.num_remote_forwards > 0) {
debug("deferring postauth fork until remote forward "
"confirmation received");
} else
fork_postauth(ssh);
}
This seems to depend on forwarding_success() for it to then call
fork_postauth.
If I'm reading this correctly the client sends out a number of forward
requests which is tracked via forward_confirms_pending in ssh.c.
Is there any equivalent on the server side to track the number of
received requests?
I ask because I'm trying, for various reasons, to trigger a rekey on the
server side *after* the client forks in a dynamic remote forward
scenario. I know that the server can't actually know for certain if the
client has or hasn't forked but if I could track the number of
confirmations the server has sent I can use that as a reasonable proxy.
I could use an ssh control message to do this but I'd rather not if I
don't have to.
Thanks,
Chris
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