You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
2.4 KiB
101 lines
2.4 KiB
/*
|
|
* include/haproxy/quic_cc-t.h
|
|
* This file contains definitions for QUIC congestion control.
|
|
*
|
|
* Copyright 2020 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation, version 2.1
|
|
* exclusively.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _HAPROXY_QUIC_CC_H
|
|
#define _HAPROXY_QUIC_CC_H
|
|
#ifdef USE_QUIC
|
|
#ifndef USE_OPENSSL
|
|
#error "Must define USE_OPENSSL"
|
|
#endif
|
|
|
|
#include <stddef.h> /* size_t */
|
|
#include <stdint.h>
|
|
|
|
#include <haproxy/buf-t.h>
|
|
|
|
#define QUIC_CC_INFINITE_SSTHESH ((uint64_t)-1)
|
|
|
|
extern struct quic_cc_algo quic_cc_algo_nr;
|
|
extern struct quic_cc_algo *default_quic_cc_algo;
|
|
|
|
enum quic_cc_algo_state_type {
|
|
/* Slow start. */
|
|
QUIC_CC_ST_SS,
|
|
/* Congestion avoidance. */
|
|
QUIC_CC_ST_CA,
|
|
};
|
|
|
|
enum quic_cc_event_type {
|
|
/* ACK receipt. */
|
|
QUIC_CC_EVT_ACK,
|
|
/* Packet loss. */
|
|
QUIC_CC_EVT_LOSS,
|
|
/* ECN-CE. */
|
|
QUIC_CC_EVT_ECN_CE,
|
|
};
|
|
|
|
struct quic_cc_event {
|
|
enum quic_cc_event_type type;
|
|
union {
|
|
struct ack {
|
|
uint64_t acked;
|
|
unsigned int time_sent;
|
|
} ack;
|
|
struct loss {
|
|
unsigned int now_ms;
|
|
unsigned int max_ack_delay;
|
|
size_t lost_bytes;
|
|
unsigned int newest_time_sent;
|
|
unsigned int period;
|
|
} loss;
|
|
};
|
|
};
|
|
|
|
enum quic_cc_algo_type {
|
|
QUIC_CC_ALGO_TP_NEWRENO,
|
|
};
|
|
|
|
union quic_cc_algo_state {
|
|
/* NewReno */
|
|
struct nr {
|
|
enum quic_cc_algo_state_type state;
|
|
uint64_t cwnd;
|
|
uint64_t ssthresh;
|
|
uint64_t recovery_start_time;
|
|
} nr;
|
|
};
|
|
|
|
struct quic_cc {
|
|
/* <conn> is there only for debugging purpose. */
|
|
struct quic_conn *qc;
|
|
struct quic_cc_algo *algo;
|
|
union quic_cc_algo_state algo_state;
|
|
};
|
|
|
|
struct quic_cc_algo {
|
|
enum quic_cc_algo_type type;
|
|
int (*init)(struct quic_cc *cc);
|
|
void (*event)(struct quic_cc *cc, struct quic_cc_event *ev);
|
|
void (*state_trace)(struct buffer *buf, const struct quic_cc *cc);
|
|
};
|
|
|
|
#endif /* USE_QUIC */
|
|
#endif /* _HAPROXY_QUIC_CC_H */
|
|
|