Acked-by: Gert Doering <g...@greenie.muc.de>
Stare-at-code looks good, and testing confirms that it does fix over-eager
clients reconnecting too fast:
^C2022-12-12 14:03:11 us=841186 event_wait : Interrupted system call
(fd=-1,code=4)
2022-12-12 14:03:11 us=841294 SENT CONTROL [cron2-freebsd-tc-amd64]: 'RESTART'
(status=1)
2022-12-12 14:03:11 us=841346 SENT CONTROL [freebsd-74-amd64]: 'RESTART'
(status=1)
2022-12-12 14:03:11 us=841391 SENT CONTROL [freebsd-11-amd64]: 'RESTART'
(status=1)
2022-12-12 14:03:12 us=893434 MULTI: Connection attempt from
194.97.140.21:13788 ignored while server is shutting down
and on the client:
2022-12-12 14:03:11 SIGUSR1[soft,server-pushed-connection-reset] received,
process restarting
2022-12-12 14:03:11 Restart pause, 1 second(s)
2022-12-12 14:03:12 TCP/UDP: Preserving recently used remote address:
[AF_INET]194.97.140.11:51196
[..]
2022-12-12 14:04:12 TLS Error: TLS key negotiation failed to occur within 60
seconds (check your network connectivity)
2022-12-12 14:04:12 TLS Error: TLS handshake failed
so, no more "it reconnects right away and then the server disappears"
(which I could reproduce without the patch - the client would then
show "Initialization Sequence Completed" and wait for --ping-timeout).
For 2.7, we might actually consider reworking the server-exit behaviour
to "exit as soon as all outstanding control messages have been ACKed"
or even "fire-and-forget on the CC EENs"? But this is a bigger thing
than "fix goes into 2.6_beta2", I'm afraid.
Your patch has been applied to the master and release/2.6 branch.
commit 7d0a90335fe79a352456f262ce42ea501796ae87 (master)
commit f8bfe1a5fb785d2f26f3a38d597604031f081018 (release/2.6)
Author: Arne Schwabe
Date: Thu Dec 8 16:31:29 2022 +0100
Ignore connection attempts while server is shutting down
Signed-off-by: Arne Schwabe <a...@rfc2549.org>
Acked-by: Gert Doering <g...@greenie.muc.de>
Message-Id: <20221208153129.1207228-1-a...@rfc2549.org>
URL:
https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg25638.html
Signed-off-by: Gert Doering <g...@greenie.muc.de>
--
kind regards,
Gert Doering
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