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QUIC: removed check for in-flight packets in computing PTO. The check is needed for clients in order to unblock a server due to anti-amplification limits, and it seems to make no sense for servers. See RFC 9002, A.6 and A.8 for a further explanation. This makes max_ack_delay to now always account, notably including PATH_CHALLENGE timers as noted in the last paragraph of 9000, 9.4, unlike when it was only used when there are packets in flight. While here, fixed nearby style.
author Sergey Kandaurov <pluknet@nginx.com>
date Tue, 09 May 2023 19:42:38 +0400
parents 1add55d23652
children e70cd097490a
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/* 
 * Copyright (C) 2002-2021 Igor Sysoev
 * Copyright (C) 2011-2022 Nginx, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */