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167e38e0e0
A packet is considered as reordered when it is detected as lost because its packet number is above the largest acknowledeged packet number by at least the packet reordering threshold value. Add ->nb_reordered_pkt new quic_loss struct member at the same location that the number of lost packets to count such packets. Should be backported to 2.6.
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/*
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* include/types/quic_loss.h
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* This file contains definitions for QUIC loss detection.
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*
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* Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _TYPES_QUIC_LOSS_H
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#define _TYPES_QUIC_LOSS_H
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#ifdef USE_QUIC
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#ifndef USE_OPENSSL
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#error "Must define USE_OPENSSL"
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#endif
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#include <inttypes.h>
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/* Maximum reordering in packets. */
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#define QUIC_LOSS_PACKET_THRESHOLD 3
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#define QUIC_TIMER_GRANULARITY 1U /* 1ms */
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#define QUIC_LOSS_INITIAL_RTT 333U /* 333ms */
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/* QUIC loss time threshold expressed an RTT multiplier
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* (QUIC_LOSS_TIME_THRESHOLD_MULTIPLICAND / QUIC_LOSS_TIME_THRESHOLD_DIVISOR)
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*/
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#define QUIC_LOSS_TIME_THRESHOLD_MULTIPLICAND 9
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#define QUIC_LOSS_TIME_THRESHOLD_DIVISOR 8
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/* Note that all the unit of variables for QUIC LOSS detections
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* is the tick.
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*/
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struct quic_loss {
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/* The most recent RTT measurement (ms) */
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unsigned int latest_rtt;
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/* Smoothed RTT (ms) */
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unsigned int srtt;
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/* RTT variation (ms) */
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unsigned int rtt_var;
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/* Minimum RTT (ms) */
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unsigned int rtt_min;
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/* Number of NACKed sent PTO. */
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unsigned int pto_count;
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unsigned long nb_lost_pkt;
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unsigned long nb_reordered_pkt;
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};
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#endif /* USE_QUIC */
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#endif /* _TYPES_QUIC_LOSS_H */
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