nginx: src/event/quic/ngx_event_quic

annotate src/event/quic/ngx_event_quic_ack.c @ 8823:f3331deed357 quic

QUIC: limit in-flight bytes by congestion window. Previously, in-flight byte counter and congestion window were properly maintained, but the limit was not properly implemented. Now a new datagram is sent only if in-flight byte counter is less than window. The limit is datagram-based, which means that a single datagram may lead to exceeding the limit, but the next one will not be sent.

author	Roman Arutyunyan <arut@nginx.com>
date	Thu, 29 Jul 2021 12:49:16 +0300
parents	4009f120cad4
children	1798acc01970

rev	line source
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	2 /*
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	3 * Copyright (C) Nginx, Inc.
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	4 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	5
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	6
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	7 #include <ngx_config.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	8 #include <ngx_core.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	9 #include <ngx_event.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	10 #include <ngx_event_quic_connection.h>
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	11
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	12
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	13 #define NGX_QUIC_MAX_ACK_GAP 2
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	14
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	15 /* RFC 9002, 6.1.1. Packet Threshold: kPacketThreshold */
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	16 #define NGX_QUIC_PKT_THR 3 /* packets */
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	17 /* RFC 9002, 6.1.2. Time Threshold: kTimeThreshold, kGranularity */
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	18 #define NGX_QUIC_TIME_THR 1.125
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	19 #define NGX_QUIC_TIME_GRANULARITY 1 /* ms */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	20
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	21 /* RFC 9002, 7.6.1. Duration: kPersistentCongestionThreshold */
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	22 #define NGX_QUIC_PERSISTENT_CONGESTION_THR 3
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	23
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	24 #define ngx_quic_lost_threshold(qc) \
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	25 ngx_max(NGX_QUIC_TIME_THR * ngx_max((qc)->latest_rtt, (qc)->avg_rtt), \
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	26 NGX_QUIC_TIME_GRANULARITY)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	27
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	28
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	29 /* send time of ACK'ed packets */
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	30 typedef struct {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	31 ngx_msec_t max_pn;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	32 ngx_msec_t oldest;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	33 ngx_msec_t newest;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	34 } ngx_quic_ack_stat_t;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	35
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	36
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	37 static void ngx_quic_rtt_sample(ngx_connection_t c, ngx_quic_ack_frame_t ack,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	38 enum ssl_encryption_level_t level, ngx_msec_t send_time);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	39 static ngx_int_t ngx_quic_handle_ack_frame_range(ngx_connection_t *c,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	40 ngx_quic_send_ctx_t *ctx, uint64_t min, uint64_t max,
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	41 ngx_quic_ack_stat_t *st);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	42 static void ngx_quic_drop_ack_ranges(ngx_connection_t *c,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	43 ngx_quic_send_ctx_t *ctx, uint64_t pn);
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	44 static ngx_int_t ngx_quic_detect_lost(ngx_connection_t *c,
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	45 ngx_quic_ack_stat_t *st);
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	46 static ngx_msec_t ngx_quic_pcg_duration(ngx_connection_t *c);
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	47 static void ngx_quic_persistent_congestion(ngx_connection_t *c);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	48 static void ngx_quic_congestion_lost(ngx_connection_t *c,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	49 ngx_quic_frame_t *frame);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	50 static void ngx_quic_lost_handler(ngx_event_t *ev);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	51
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	52
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	53 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	54 ngx_quic_handle_ack_frame(ngx_connection_t c, ngx_quic_header_t pkt,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	55 ngx_quic_frame_t *f)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	56 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	57 ssize_t n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	58 u_char pos, end;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	59 uint64_t min, max, gap, range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	60 ngx_uint_t i;
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	61 ngx_quic_ack_stat_t send_time;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	62 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	63 ngx_quic_ack_frame_t *ack;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	64 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	65
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	66 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	67
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	68 ctx = ngx_quic_get_send_ctx(qc, pkt->level);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	69
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	70 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	71 "quic ngx_quic_handle_ack_frame level:%d", pkt->level);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	72
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	73 ack = &f->u.ack;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	74
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	75 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	76 * RFC 9000, 19.3.1. ACK Ranges
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	77 *
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	78 * If any computed packet number is negative, an endpoint MUST
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	79 * generate a connection error of type FRAME_ENCODING_ERROR.
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	80 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	81
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	82 if (ack->first_range > ack->largest) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	83 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	84 ngx_log_error(NGX_LOG_INFO, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	85 "quic invalid first range in ack frame");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	86 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	87 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	88
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	89 min = ack->largest - ack->first_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	90 max = ack->largest;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	91
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	92 send_time.oldest = NGX_TIMER_INFINITE;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	93 send_time.newest = NGX_TIMER_INFINITE;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	94
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	95 if (ngx_quic_handle_ack_frame_range(c, ctx, min, max, &send_time)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	96 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	97 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	98 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	99 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	100
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	101 /* RFC 9000, 13.2.4. Limiting Ranges by Tracking ACK Frames */
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	102 if (ctx->largest_ack < max \|\| ctx->largest_ack == NGX_QUIC_UNSET_PN) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	103 ctx->largest_ack = max;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	104 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	105 "quic updated largest received ack:%uL", max);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	106
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	107 /*
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	108 * RFC 9002, 5.1. Generating RTT Samples
4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	109 *
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	110 * An endpoint generates an RTT sample on receiving an
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	111 * ACK frame that meets the following two conditions:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	112 *
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	113 * - the largest acknowledged packet number is newly acknowledged
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	114 * - at least one of the newly acknowledged packets was ack-eliciting.
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	115 */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	116
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	117 if (send_time.max_pn != NGX_TIMER_INFINITE) {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	118 ngx_quic_rtt_sample(c, ack, pkt->level, send_time.max_pn);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	119 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	120 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	121
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	122 if (f->data) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	123 pos = f->data->buf->pos;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	124 end = f->data->buf->last;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	125
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	126 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	127 pos = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	128 end = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	129 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	130
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	131 for (i = 0; i < ack->range_count; i++) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	132
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	133 n = ngx_quic_parse_ack_range(pkt->log, pos, end, &gap, &range);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	134 if (n == NGX_ERROR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	135 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	136 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	137 pos += n;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	138
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	139 if (gap + 2 > min) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	140 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	141 ngx_log_error(NGX_LOG_INFO, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	142 "quic invalid range:%ui in ack frame", i);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	143 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	144 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	145
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	146 max = min - gap - 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	147
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	148 if (range > max) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	149 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	150 ngx_log_error(NGX_LOG_INFO, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	151 "quic invalid range:%ui in ack frame", i);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	152 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	153 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	154
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	155 min = max - range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	156
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	157 if (ngx_quic_handle_ack_frame_range(c, ctx, min, max, &send_time)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	158 != NGX_OK)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	159 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	161 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	162 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	163
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	164 return ngx_quic_detect_lost(c, &send_time);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	165 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	166
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	167
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	168 static void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	169 ngx_quic_rtt_sample(ngx_connection_t c, ngx_quic_ack_frame_t ack,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	170 enum ssl_encryption_level_t level, ngx_msec_t send_time)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	171 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 ngx_msec_t latest_rtt, ack_delay, adjusted_rtt, rttvar_sample;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	173 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	174
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	175 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	176
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	177 latest_rtt = ngx_current_msec - send_time;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	178 qc->latest_rtt = latest_rtt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	179
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	180 if (qc->min_rtt == NGX_TIMER_INFINITE) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	181 qc->min_rtt = latest_rtt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	182 qc->avg_rtt = latest_rtt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	183 qc->rttvar = latest_rtt / 2;
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	184 qc->first_rtt = ngx_current_msec;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	185
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	186 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	187 qc->min_rtt = ngx_min(qc->min_rtt, latest_rtt);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	188
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	189 ack_delay = ack->delay * (1 << qc->ctp.ack_delay_exponent) / 1000;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	190
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	191 if (c->ssl->handshaked) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	192 ack_delay = ngx_min(ack_delay, qc->ctp.max_ack_delay);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	193 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	194
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	195 adjusted_rtt = latest_rtt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	196
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	197 if (qc->min_rtt + ack_delay < latest_rtt) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	198 adjusted_rtt -= ack_delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	199 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	200
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	201 qc->avg_rtt = 0.875 * qc->avg_rtt + 0.125 * adjusted_rtt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	202 rttvar_sample = ngx_abs((ngx_msec_int_t) (qc->avg_rtt - adjusted_rtt));
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	203 qc->rttvar = 0.75 * qc->rttvar + 0.25 * rttvar_sample;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	204 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	205
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	206 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	207 "quic rtt sample latest:%M min:%M avg:%M var:%M",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	208 latest_rtt, qc->min_rtt, qc->avg_rtt, qc->rttvar);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	209 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	210
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	211
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	212 static ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	213 ngx_quic_handle_ack_frame_range(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	214 uint64_t min, uint64_t max, ngx_quic_ack_stat_t *st)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	215 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	216 ngx_uint_t found;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	217 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	218 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	219 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	220
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	221 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	222
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	223 st->max_pn = NGX_TIMER_INFINITE;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	224 found = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	225
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	226 q = ngx_queue_last(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	227
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	228 while (q != ngx_queue_sentinel(&ctx->sent)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	229
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	230 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	231 q = ngx_queue_prev(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	232
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	233 if (f->pnum >= min && f->pnum <= max) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	234 ngx_quic_congestion_ack(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	235
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	236 switch (f->type) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	237 case NGX_QUIC_FT_ACK:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	238 case NGX_QUIC_FT_ACK_ECN:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	239 ngx_quic_drop_ack_ranges(c, ctx, f->u.ack.largest);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	240 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	241
8820 4009f120cad4 QUIC: eliminated stream type from ngx_quic_stream_frame_t. Roman Arutyunyan <arut@nginx.com> parents: 8797 diff changeset	242 case NGX_QUIC_FT_STREAM:
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	243 ngx_quic_handle_stream_ack(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	244 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	245 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	246
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	247 if (f->pnum == max) {
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	248 st->max_pn = f->last;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	249 }
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	250
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	251 /* save earliest and latest send times of frames ack'ed */
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	252 if (st->oldest == NGX_TIMER_INFINITE \|\| f->last < st->oldest) {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	253 st->oldest = f->last;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	254 }
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	255
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	256 if (st->newest == NGX_TIMER_INFINITE \|\| f->last > st->newest) {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	257 st->newest = f->last;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	258 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	259
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	260 ngx_queue_remove(&f->queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	261 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	262 found = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	263 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	264 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	265
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	266 if (!found) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	267
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	268 if (max < ctx->pnum) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	269 /* duplicate ACK or ACK for non-ack-eliciting frame */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	270 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	271 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	272
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	273 ngx_log_error(NGX_LOG_INFO, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	274 "quic ACK for the packet not sent");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	275
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	276 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	277 qc->error_ftype = NGX_QUIC_FT_ACK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	278 qc->error_reason = "unknown packet number";
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	279
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	280 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	281 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	282
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	283 if (!qc->push.timer_set) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	284 ngx_post_event(&qc->push, &ngx_posted_events);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	285 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	286
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	287 qc->pto_count = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	288
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	289 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	290 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	291
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	292
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	293 void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	294 ngx_quic_congestion_ack(ngx_connection_t c, ngx_quic_frame_t f)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	295 {
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	296 ngx_uint_t blocked;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	297 ngx_msec_t timer;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	298 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	299 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	300
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	301 if (f->plen == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	302 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	303 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	304
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	305 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	306 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	307
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	308 blocked = (cg->in_flight >= cg->window) ? 1 : 0;
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	309
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	310 cg->in_flight -= f->plen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	311
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	312 timer = f->last - cg->recovery_start;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	313
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	314 if ((ngx_msec_int_t) timer <= 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	315 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	316 "quic congestion ack recovery win:%uz ss:%z if:%uz",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	317 cg->window, cg->ssthresh, cg->in_flight);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	318
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	319 goto done;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	320 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	321
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	322 if (cg->window < cg->ssthresh) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	323 cg->window += f->plen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	324
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	325 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	326 "quic congestion slow start win:%uz ss:%z if:%uz",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	327 cg->window, cg->ssthresh, cg->in_flight);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	328
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	329 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	330 cg->window += qc->tp.max_udp_payload_size * f->plen / cg->window;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	331
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	332 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	333 "quic congestion avoidance win:%uz ss:%z if:%uz",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	334 cg->window, cg->ssthresh, cg->in_flight);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	335 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	336
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	337 /* prevent recovery_start from wrapping */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	338
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	339 timer = cg->recovery_start - ngx_current_msec + qc->tp.max_idle_timeout * 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	340
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	341 if ((ngx_msec_int_t) timer < 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	342 cg->recovery_start = ngx_current_msec - qc->tp.max_idle_timeout * 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	343 }
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	344
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	345 done:
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	346
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	347 if (blocked && cg->in_flight < cg->window) {
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	348 ngx_post_event(&qc->push, &ngx_posted_events);
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	349 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	350 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	351
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	352
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	353 static void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	354 ngx_quic_drop_ack_ranges(ngx_connection_t c, ngx_quic_send_ctx_t ctx,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	355 uint64_t pn)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	356 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	357 uint64_t base;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	358 ngx_uint_t i, smallest, largest;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	359 ngx_quic_ack_range_t *r;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	360
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	361 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	362 "quic ngx_quic_drop_ack_ranges pn:%uL largest:%uL"
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	363 " fr:%uL nranges:%ui", pn, ctx->largest_range,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	364 ctx->first_range, ctx->nranges);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	365
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	366 base = ctx->largest_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	367
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	368 if (base == NGX_QUIC_UNSET_PN) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	369 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	370 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	371
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	372 if (ctx->pending_ack != NGX_QUIC_UNSET_PN && pn >= ctx->pending_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	373 ctx->pending_ack = NGX_QUIC_UNSET_PN;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	374 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	375
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	376 largest = base;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	377 smallest = largest - ctx->first_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	378
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	379 if (pn >= largest) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	380 ctx->largest_range = NGX_QUIC_UNSET_PN;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	381 ctx->first_range = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	382 ctx->nranges = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	383 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	384 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	385
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	386 if (pn >= smallest) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	387 ctx->first_range = largest - pn - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	388 ctx->nranges = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	389 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	390 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	391
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	392 for (i = 0; i < ctx->nranges; i++) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	393 r = &ctx->ranges[i];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	394
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	395 largest = smallest - r->gap - 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	396 smallest = largest - r->range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	397
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	398 if (pn >= largest) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	399 ctx->nranges = i;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	400 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	401 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	402 if (pn >= smallest) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	403 r->range = largest - pn - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	404 ctx->nranges = i + 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	405 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	406 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	407 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	408 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	409
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	410
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	411 static ngx_int_t
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	412 ngx_quic_detect_lost(ngx_connection_t c, ngx_quic_ack_stat_t st)
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	413 {
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	414 ngx_uint_t i, nlost;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	415 ngx_msec_t now, wait, thr, oldest, newest;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	416 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	417 ngx_quic_frame_t *start;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	418 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	419 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	420
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	421 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	422 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	423 thr = ngx_quic_lost_threshold(qc);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	424
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	425 /* send time of lost packets across all send contexts */
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	426 oldest = NGX_TIMER_INFINITE;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	427 newest = NGX_TIMER_INFINITE;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	428
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	429 nlost = 0;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	430
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	431 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	432
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	433 ctx = &qc->send_ctx[i];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	434
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	435 if (ctx->largest_ack == NGX_QUIC_UNSET_PN) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	436 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	437 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	438
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	439 while (!ngx_queue_empty(&ctx->sent)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	440
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	441 q = ngx_queue_head(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	442 start = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	443
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	444 if (start->pnum > ctx->largest_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	445 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	446 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	447
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	448 wait = start->last + thr - now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	449
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	450 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	451 "quic detect_lost pnum:%uL thr:%M wait:%i level:%d",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	452 start->pnum, thr, (ngx_int_t) wait, start->level);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	453
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	454 if ((ngx_msec_int_t) wait > 0
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	455 && ctx->largest_ack - start->pnum < NGX_QUIC_PKT_THR)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	456 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	457 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	458 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	459
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	460 if (start->last > qc->first_rtt) {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	461
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	462 if (oldest == NGX_TIMER_INFINITE \|\| start->last < oldest) {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	463 oldest = start->last;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	464 }
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	465
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	466 if (newest == NGX_TIMER_INFINITE \|\| start->last > newest) {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	467 newest = start->last;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	468 }
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	469
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	470 nlost++;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	471 }
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	472
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	473 ngx_quic_resend_frames(c, ctx);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	474 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	475 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	476
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	477
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	478 /* RFC 9002, 7.6.2. Establishing Persistent Congestion */
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	479
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	480 /*
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	481 * Once acknowledged, packets are no longer tracked. Thus no send time
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	482 * information is available for such packets. This limits persistent
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	483 * congestion algorithm to packets mentioned within ACK ranges of the
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	484 * latest ACK frame.
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	485 */
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	486
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	487 if (st && nlost >= 2 && (st->newest < oldest \|\| st->oldest > newest)) {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	488
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	489 if (newest - oldest > ngx_quic_pcg_duration(c)) {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	490 ngx_quic_persistent_congestion(c);
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	491 }
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	492 }
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	493
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	494 ngx_quic_set_lost_timer(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	495
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	496 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	497 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	498
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	499
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	500 static ngx_msec_t
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	501 ngx_quic_pcg_duration(ngx_connection_t *c)
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	502 {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	503 ngx_msec_t duration;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	504 ngx_quic_connection_t *qc;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	505
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	506 qc = ngx_quic_get_connection(c);
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	507
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	508 duration = qc->avg_rtt;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	509 duration += ngx_max(4 * qc->rttvar, NGX_QUIC_TIME_GRANULARITY);
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	510 duration += qc->ctp.max_ack_delay;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	511 duration *= NGX_QUIC_PERSISTENT_CONGESTION_THR;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	512
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	513 return duration;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	514 }
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	515
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	516
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	517 static void
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	518 ngx_quic_persistent_congestion(ngx_connection_t *c)
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	519 {
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	520 ngx_quic_congestion_t *cg;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	521 ngx_quic_connection_t *qc;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	522
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	523 qc = ngx_quic_get_connection(c);
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	524 cg = &qc->congestion;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	525
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	526 cg->recovery_start = ngx_current_msec;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	527 cg->window = qc->tp.max_udp_payload_size * 2;
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	528
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	529 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	530 "quic persistent congestion win:%uz", cg->window);
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	531 }
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	532
004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	533
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	534 void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	535 ngx_quic_resend_frames(ngx_connection_t c, ngx_quic_send_ctx_t ctx)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	536 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	537 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	538 ngx_quic_frame_t f, start;
8761 225e9f1dfe7c QUIC: renamed stream variables from sn to qs. Roman Arutyunyan <arut@nginx.com> parents: 8760 diff changeset	539 ngx_quic_stream_t *qs;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	540 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	541
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	542 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	543 q = ngx_queue_head(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	544 start = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	545
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	546 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	547 "quic resend packet pnum:%uL", start->pnum);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	548
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	549 ngx_quic_congestion_lost(c, start);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	550
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	551 do {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	552 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	553
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	554 if (f->pnum != start->pnum) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	555 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	556 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	557
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	558 q = ngx_queue_next(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	559
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	560 ngx_queue_remove(&f->queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	561
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	562 switch (f->type) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	563 case NGX_QUIC_FT_ACK:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	564 case NGX_QUIC_FT_ACK_ECN:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	565 if (ctx->level == ssl_encryption_application) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	566 /* force generation of most recent acknowledgment */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	567 ctx->send_ack = NGX_QUIC_MAX_ACK_GAP;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	568 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	569
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	570 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	571 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	572
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	573 case NGX_QUIC_FT_PING:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	574 case NGX_QUIC_FT_PATH_RESPONSE:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	575 case NGX_QUIC_FT_CONNECTION_CLOSE:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	576 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	577 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	578
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	579 case NGX_QUIC_FT_MAX_DATA:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	580 f->u.max_data.max_data = qc->streams.recv_max_data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	581 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	582 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	583
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	584 case NGX_QUIC_FT_MAX_STREAMS:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	585 case NGX_QUIC_FT_MAX_STREAMS2:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	586 f->u.max_streams.limit = f->u.max_streams.bidi
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	587 ? qc->streams.client_max_streams_bidi
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	588 : qc->streams.client_max_streams_uni;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	589 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	590 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	591
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	592 case NGX_QUIC_FT_MAX_STREAM_DATA:
8761 225e9f1dfe7c QUIC: renamed stream variables from sn to qs. Roman Arutyunyan <arut@nginx.com> parents: 8760 diff changeset	593 qs = ngx_quic_find_stream(&qc->streams.tree,
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	594 f->u.max_stream_data.id);
8761 225e9f1dfe7c QUIC: renamed stream variables from sn to qs. Roman Arutyunyan <arut@nginx.com> parents: 8760 diff changeset	595 if (qs == NULL) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	596 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	597 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	598 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	599
8779 f52a2b77d406 QUIC: generic buffering for stream input. Roman Arutyunyan <arut@nginx.com> parents: 8763 diff changeset	600 f->u.max_stream_data.limit = qs->recv_max_data;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	601 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	602 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	603
8820 4009f120cad4 QUIC: eliminated stream type from ngx_quic_stream_frame_t. Roman Arutyunyan <arut@nginx.com> parents: 8797 diff changeset	604 case NGX_QUIC_FT_STREAM:
8761 225e9f1dfe7c QUIC: renamed stream variables from sn to qs. Roman Arutyunyan <arut@nginx.com> parents: 8760 diff changeset	605 qs = ngx_quic_find_stream(&qc->streams.tree, f->u.stream.stream_id);
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	606
8761 225e9f1dfe7c QUIC: renamed stream variables from sn to qs. Roman Arutyunyan <arut@nginx.com> parents: 8760 diff changeset	607 if (qs && qs->connection->write->error) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	608 /* RESET_STREAM was sent */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	609 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	610 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	611 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	612
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	613 /* fall through */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	614
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	615 default:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	616 ngx_queue_insert_tail(&ctx->frames, &f->queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	617 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	618
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	619 } while (q != ngx_queue_sentinel(&ctx->sent));
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	620
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	621 if (qc->closing) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	622 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	623 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	624
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	625 ngx_post_event(&qc->push, &ngx_posted_events);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	626 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	627
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	628
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	629 static void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	630 ngx_quic_congestion_lost(ngx_connection_t c, ngx_quic_frame_t f)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	631 {
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	632 ngx_uint_t blocked;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	633 ngx_msec_t timer;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	634 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	635 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	636
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	637 if (f->plen == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	638 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	639 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	640
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	641 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	642 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	643
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	644 blocked = (cg->in_flight >= cg->window) ? 1 : 0;
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	645
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	646 cg->in_flight -= f->plen;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	647 f->plen = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	648
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	649 timer = f->last - cg->recovery_start;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	650
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	651 if ((ngx_msec_int_t) timer <= 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	652 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	653 "quic congestion lost recovery win:%uz ss:%z if:%uz",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	654 cg->window, cg->ssthresh, cg->in_flight);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	655
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	656 goto done;
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	657 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	658
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	659 cg->recovery_start = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	660 cg->window /= 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	661
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	662 if (cg->window < qc->tp.max_udp_payload_size * 2) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	663 cg->window = qc->tp.max_udp_payload_size * 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	664 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	665
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	666 cg->ssthresh = cg->window;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	667
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	668 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	669 "quic congestion lost win:%uz ss:%z if:%uz",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	670 cg->window, cg->ssthresh, cg->in_flight);
8823 f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	671
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	672 done:
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	673
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	674 if (blocked && cg->in_flight < cg->window) {
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	675 ngx_post_event(&qc->push, &ngx_posted_events);
f3331deed357 QUIC: limit in-flight bytes by congestion window. Roman Arutyunyan <arut@nginx.com> parents: 8820 diff changeset	676 }
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	677 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	678
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	679
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	680 void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	681 ngx_quic_set_lost_timer(ngx_connection_t *c)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	682 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	683 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	684 ngx_msec_t now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	685 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	686 ngx_msec_int_t lost, pto, w;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	687 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	688 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	689 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	690
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	691 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	692 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	693
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	694 lost = -1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	695 pto = -1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	696
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	697 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	698 ctx = &qc->send_ctx[i];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	699
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	700 if (ngx_queue_empty(&ctx->sent)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	701 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	702 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	703
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	704 if (ctx->largest_ack != NGX_QUIC_UNSET_PN) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	705 q = ngx_queue_head(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	706 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	707 w = (ngx_msec_int_t) (f->last + ngx_quic_lost_threshold(qc) - now);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	708
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	709 if (f->pnum <= ctx->largest_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	710 if (w < 0 \|\| ctx->largest_ack - f->pnum >= NGX_QUIC_PKT_THR) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	711 w = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	712 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	713
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	714 if (lost == -1 \|\| w < lost) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	715 lost = w;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	716 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	717 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	718 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	719
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	720 q = ngx_queue_last(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	721 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	722 w = (ngx_msec_int_t) (f->last + ngx_quic_pto(c, ctx) - now);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	723
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	724 if (w < 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	725 w = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	726 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	727
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	728 if (pto == -1 \|\| w < pto) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	729 pto = w;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	730 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	731 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	732
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	733 if (qc->pto.timer_set) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	734 ngx_del_timer(&qc->pto);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	735 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	736
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	737 if (lost != -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	738 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	739 "quic lost timer lost:%M", lost);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	740
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	741 qc->pto.handler = ngx_quic_lost_handler;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	742 ngx_add_timer(&qc->pto, lost);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	743 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	744 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	745
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	746 if (pto != -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	747 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	748 "quic lost timer pto:%M", pto);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	749
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	750 qc->pto.handler = ngx_quic_pto_handler;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	751 ngx_add_timer(&qc->pto, pto);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	752 return;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	753 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	754
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	755 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "quic lost timer unset");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	756 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	757
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	758
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	759 ngx_msec_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	760 ngx_quic_pto(ngx_connection_t c, ngx_quic_send_ctx_t ctx)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	761 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	762 ngx_msec_t duration;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	763 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	764
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	765 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	766
8797 4715f3e669f1 QUIC: updated specification references. Sergey Kandaurov <pluknet@nginx.com> parents: 8792 diff changeset	767 /* RFC 9002, Appendix A.8. Setting the Loss Detection Timer */
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	768 duration = qc->avg_rtt;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	769
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	770 duration += ngx_max(4 * qc->rttvar, NGX_QUIC_TIME_GRANULARITY);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	771 duration <<= qc->pto_count;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	772
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	773 if (qc->congestion.in_flight == 0) { /* no in-flight packets */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	774 return duration;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	775 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	776
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	777 if (ctx->level == ssl_encryption_application && c->ssl->handshaked) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	778 duration += qc->ctp.max_ack_delay << qc->pto_count;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	779 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	780
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	781 return duration;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	782 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	783
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	784
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	785 static
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	786 void ngx_quic_lost_handler(ngx_event_t *ev)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	787 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	788 ngx_connection_t *c;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	789
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	790 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "quic lost timer");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	791
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	792 c = ev->data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	793
8792 004172345bdc QUIC: persistent congestion calculation. Vladimir Homutov <vl@nginx.com> parents: 8779 diff changeset	794 if (ngx_quic_detect_lost(c, NULL) != NGX_OK) {
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	795 ngx_quic_close_connection(c, NGX_ERROR);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	796 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	797
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	798 ngx_quic_connstate_dbg(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	799 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	800
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	801
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	802 void
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	803 ngx_quic_pto_handler(ngx_event_t *ev)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	804 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	805 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	806 ngx_msec_t now;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	807 ngx_queue_t q, next;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	808 ngx_connection_t *c;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	809 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	810 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	811 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	812
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	813 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "quic pto timer");
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	814
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	815 c = ev->data;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	816 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	817 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	818
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	819 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	820
8763 4117aa7fa38e QUIC: connection migration. Vladimir Homutov <vl@nginx.com> parents: 8761 diff changeset	821 ctx = &qc->send_ctx[i];
8751 bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	822
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	823 if (ngx_queue_empty(&ctx->sent)) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	824 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	825 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	826
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	827 q = ngx_queue_head(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	828 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	829
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	830 if (f->pnum <= ctx->largest_ack
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	831 && ctx->largest_ack != NGX_QUIC_UNSET_PN)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	832 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	833 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	834 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	835
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	836 if ((ngx_msec_int_t) (f->last + ngx_quic_pto(c, ctx) - now) > 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	837 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	838 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	839
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	840 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	841 "quic pto %s pto_count:%ui",
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	842 ngx_quic_level_name(ctx->level), qc->pto_count);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	843
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	844 for (q = ngx_queue_head(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	845 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	846 /* void */)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	847 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	848 next = ngx_queue_next(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	849 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	850
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	851 if (f->type == NGX_QUIC_FT_PING) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	852 ngx_queue_remove(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	853 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	854 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	855
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	856 q = next;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	857 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	858
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	859 for (q = ngx_queue_head(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	860 q != ngx_queue_sentinel(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	861 /* void */)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	862 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	863 next = ngx_queue_next(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	864 f = ngx_queue_data(q, ngx_quic_frame_t, queue);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	865
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	866 if (f->type == NGX_QUIC_FT_PING) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	867 ngx_quic_congestion_lost(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	868 ngx_queue_remove(q);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	869 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	870 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	871
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	872 q = next;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	873 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	874
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	875 /* enforce 2 udp datagrams */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	876
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	877 f = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	878 if (f == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	879 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	880 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	881
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	882 f->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	883 f->type = NGX_QUIC_FT_PING;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	884 f->flush = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	885
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	886 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	887
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	888 f = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	889 if (f == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	890 break;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	891 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	892
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	893 f->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	894 f->type = NGX_QUIC_FT_PING;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	895
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	896 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	897 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	898
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	899 qc->pto_count++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	900
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	901 ngx_quic_connstate_dbg(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	902 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	903
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	904
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	905 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	906 ngx_quic_ack_packet(ngx_connection_t c, ngx_quic_header_t pkt)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	907 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	908 uint64_t base, largest, smallest, gs, ge, gap, range, pn;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	909 uint64_t prev_pending;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	910 ngx_uint_t i, nr;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	911 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	912 ngx_quic_ack_range_t *r;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	913 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	914
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	915 c->log->action = "preparing ack";
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	916
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	917 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	918
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	919 ctx = ngx_quic_get_send_ctx(qc, pkt->level);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	920
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	921 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	922 "quic ngx_quic_ack_packet pn:%uL largest %L fr:%uL"
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	923 " nranges:%ui", pkt->pn, (int64_t) ctx->largest_range,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	924 ctx->first_range, ctx->nranges);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	925
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	926 prev_pending = ctx->pending_ack;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	927
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	928 if (pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	929
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	930 ngx_post_event(&qc->push, &ngx_posted_events);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	931
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	932 if (ctx->send_ack == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	933 ctx->ack_delay_start = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	934 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	935
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	936 ctx->send_ack++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	937
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	938 if (ctx->pending_ack == NGX_QUIC_UNSET_PN
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	939 \|\| ctx->pending_ack < pkt->pn)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	940 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	941 ctx->pending_ack = pkt->pn;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	942 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	943 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	944
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	945 base = ctx->largest_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	946 pn = pkt->pn;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	947
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	948 if (base == NGX_QUIC_UNSET_PN) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	949 ctx->largest_range = pn;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	950 ctx->largest_received = pkt->received;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	951 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	952 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	953
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	954 if (base == pn) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	955 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	956 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	957
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	958 largest = base;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	959 smallest = largest - ctx->first_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	960
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	961 if (pn > base) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	962
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	963 if (pn - base == 1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	964 ctx->first_range++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	965 ctx->largest_range = pn;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	966 ctx->largest_received = pkt->received;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	967
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	968 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	969
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	970 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	971 /* new gap in front of current largest */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	972
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	973 /* no place for new range, send current range as is */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	974 if (ctx->nranges == NGX_QUIC_MAX_RANGES) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	975
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	976 if (prev_pending != NGX_QUIC_UNSET_PN) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	977 if (ngx_quic_send_ack(c, ctx) != NGX_OK) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	978 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	979 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	980 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	981
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	982 if (prev_pending == ctx->pending_ack \|\| !pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	983 ctx->pending_ack = NGX_QUIC_UNSET_PN;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	984 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	985 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	986
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	987 gap = pn - base - 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	988 range = ctx->first_range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	989
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	990 ctx->first_range = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	991 ctx->largest_range = pn;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	992 ctx->largest_received = pkt->received;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	993
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	994 /* packet is out of order, force send */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	995 if (pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	996 ctx->send_ack = NGX_QUIC_MAX_ACK_GAP;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	997 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	998
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	999 i = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1000
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1001 goto insert;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1002 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1003 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1004
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1005 /* pn < base, perform lookup in existing ranges */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1006
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1007 /* packet is out of order */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1008 if (pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1009 ctx->send_ack = NGX_QUIC_MAX_ACK_GAP;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1010 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1011
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1012 if (pn >= smallest && pn <= largest) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1013 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1014 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1015
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1016 #if (NGX_SUPPRESS_WARN)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1017 r = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1018 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1019
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1020 for (i = 0; i < ctx->nranges; i++) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1021 r = &ctx->ranges[i];
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1022
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1023 ge = smallest - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1024 gs = ge - r->gap;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1025
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1026 if (pn >= gs && pn <= ge) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1027
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1028 if (gs == ge) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1029 /* gap size is exactly one packet, now filled */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1030
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1031 /* data moves to previous range, current is removed */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1032
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1033 if (i == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1034 ctx->first_range += r->range + 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1035
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1036 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1037 ctx->ranges[i - 1].range += r->range + 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1038 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1039
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1040 nr = ctx->nranges - i - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1041 if (nr) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1042 ngx_memmove(&ctx->ranges[i], &ctx->ranges[i + 1],
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1043 sizeof(ngx_quic_ack_range_t) * nr);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1044 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1045
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1046 ctx->nranges--;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1047
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1048 } else if (pn == gs) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1049 /* current gap shrinks from tail (current range grows) */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1050 r->gap--;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1051 r->range++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1052
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1053 } else if (pn == ge) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1054 /* current gap shrinks from head (previous range grows) */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1055 r->gap--;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1056
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1057 if (i == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1058 ctx->first_range++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1059
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1060 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1061 ctx->ranges[i - 1].range++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1062 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1063
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1064 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1065 /* current gap is split into two parts */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1066
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1067 gap = ge - pn - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1068 range = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1069
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1070 if (ctx->nranges == NGX_QUIC_MAX_RANGES) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1071 if (prev_pending != NGX_QUIC_UNSET_PN) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1072 if (ngx_quic_send_ack(c, ctx) != NGX_OK) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1073 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1074 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1075 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1076
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1077 if (prev_pending == ctx->pending_ack \|\| !pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1078 ctx->pending_ack = NGX_QUIC_UNSET_PN;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1079 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1080 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1081
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1082 r->gap = pn - gs - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1083 goto insert;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1084 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1085
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1086 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1087 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1088
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1089 largest = smallest - r->gap - 2;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1090 smallest = largest - r->range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1091
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1092 if (pn >= smallest && pn <= largest) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1093 /* this packet number is already known */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1094 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1095 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1096
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1097 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1098
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1099 if (pn == smallest - 1) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1100 /* extend first or last range */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1101
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1102 if (i == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1103 ctx->first_range++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1104
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1105 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1106 r->range++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1107 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1108
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1109 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1110 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1111
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1112 /* nothing found, add new range at the tail */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1113
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1114 if (ctx->nranges == NGX_QUIC_MAX_RANGES) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1115 /* packet is too old to keep it */
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1116
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1117 if (pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1118 return ngx_quic_send_ack_range(c, ctx, pn, pn);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1119 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1120
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1121 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1122 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1123
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1124 gap = smallest - 2 - pn;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1125 range = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1126
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1127 insert:
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1128
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1129 if (ctx->nranges < NGX_QUIC_MAX_RANGES) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1130 ctx->nranges++;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1131 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1132
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1133 ngx_memmove(&ctx->ranges[i + 1], &ctx->ranges[i],
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1134 sizeof(ngx_quic_ack_range_t) * (ctx->nranges - i - 1));
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1135
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1136 ctx->ranges[i].gap = gap;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1137 ctx->ranges[i].range = range;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1138
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1139 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1140 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1141
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1142
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1143 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1144 ngx_quic_generate_ack(ngx_connection_t c, ngx_quic_send_ctx_t ctx)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1145 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1146 ngx_msec_t delay;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1147 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1148
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1149 if (!ctx->send_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1150 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1151 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1152
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1153 if (ctx->level == ssl_encryption_application) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1154
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1155 delay = ngx_current_msec - ctx->ack_delay_start;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1156 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1157
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1158 if (ctx->send_ack < NGX_QUIC_MAX_ACK_GAP
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1159 && delay < qc->tp.max_ack_delay)
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1160 {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1161 if (!qc->push.timer_set && !qc->closing) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1162 ngx_add_timer(&qc->push,
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1163 qc->tp.max_ack_delay - delay);
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1164 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1165
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1166 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1167 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1168 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1169
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1170 if (ngx_quic_send_ack(c, ctx) != NGX_OK) {
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1171 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1172 }
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1173
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1174 ctx->send_ack = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1175
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1176 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1177 }

Mercurial > hg > nginx

annotate src/event/quic/ngx_event_quic_ack.c @ 8823:f3331deed357 quic