annotate src/event/quic/ngx_event_quic_ack.c @ 8820:4009f120cad4 quic

QUIC: eliminated stream type from ngx_quic_stream_frame_t. The information about the type is contained in off/len/fin bits. Also, where possible, only the first stream type (0x08) is used for simplicity.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 28 Jul 2021 13:21:47 +0300
parents 4715f3e669f1
children f3331deed357
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_event_quic_connection.h>
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11
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12
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13 #define NGX_QUIC_MAX_ACK_GAP 2
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14
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15 /* RFC 9002, 6.1.1. Packet Threshold: kPacketThreshold */
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16 #define NGX_QUIC_PKT_THR 3 /* packets */
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17 /* RFC 9002, 6.1.2. Time Threshold: kTimeThreshold, kGranularity */
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18 #define NGX_QUIC_TIME_THR 1.125
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19 #define NGX_QUIC_TIME_GRANULARITY 1 /* ms */
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20
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21 /* RFC 9002, 7.6.1. Duration: kPersistentCongestionThreshold */
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22 #define NGX_QUIC_PERSISTENT_CONGESTION_THR 3
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23
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24 #define ngx_quic_lost_threshold(qc) \
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25 ngx_max(NGX_QUIC_TIME_THR * ngx_max((qc)->latest_rtt, (qc)->avg_rtt), \
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26 NGX_QUIC_TIME_GRANULARITY)
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27
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28
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29 /* send time of ACK'ed packets */
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30 typedef struct {
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31 ngx_msec_t max_pn;
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32 ngx_msec_t oldest;
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33 ngx_msec_t newest;
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34 } ngx_quic_ack_stat_t;
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35
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36
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37 static void ngx_quic_rtt_sample(ngx_connection_t *c, ngx_quic_ack_frame_t *ack,
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38 enum ssl_encryption_level_t level, ngx_msec_t send_time);
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39 static ngx_int_t ngx_quic_handle_ack_frame_range(ngx_connection_t *c,
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40 ngx_quic_send_ctx_t *ctx, uint64_t min, uint64_t max,
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41 ngx_quic_ack_stat_t *st);
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42 static void ngx_quic_drop_ack_ranges(ngx_connection_t *c,
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43 ngx_quic_send_ctx_t *ctx, uint64_t pn);
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44 static ngx_int_t ngx_quic_detect_lost(ngx_connection_t *c,
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45 ngx_quic_ack_stat_t *st);
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46 static ngx_msec_t ngx_quic_pcg_duration(ngx_connection_t *c);
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47 static void ngx_quic_persistent_congestion(ngx_connection_t *c);
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48 static void ngx_quic_congestion_lost(ngx_connection_t *c,
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49 ngx_quic_frame_t *frame);
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50 static void ngx_quic_lost_handler(ngx_event_t *ev);
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51
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52
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53 ngx_int_t
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54 ngx_quic_handle_ack_frame(ngx_connection_t *c, ngx_quic_header_t *pkt,
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55 ngx_quic_frame_t *f)
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56 {
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57 ssize_t n;
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58 u_char *pos, *end;
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59 uint64_t min, max, gap, range;
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60 ngx_uint_t i;
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61 ngx_quic_ack_stat_t send_time;
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62 ngx_quic_send_ctx_t *ctx;
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63 ngx_quic_ack_frame_t *ack;
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64 ngx_quic_connection_t *qc;
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65
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66 qc = ngx_quic_get_connection(c);
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67
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68 ctx = ngx_quic_get_send_ctx(qc, pkt->level);
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69
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70 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
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71 "quic ngx_quic_handle_ack_frame level:%d", pkt->level);
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72
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73 ack = &f->u.ack;
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74
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75 /*
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76 * RFC 9000, 19.3.1. ACK Ranges
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77 *
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78 * If any computed packet number is negative, an endpoint MUST
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79 * generate a connection error of type FRAME_ENCODING_ERROR.
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80 */
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81
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82 if (ack->first_range > ack->largest) {
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83 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR;
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84 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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85 "quic invalid first range in ack frame");
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86 return NGX_ERROR;
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87 }
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88
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89 min = ack->largest - ack->first_range;
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90 max = ack->largest;
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91
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92 send_time.oldest = NGX_TIMER_INFINITE;
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93 send_time.newest = NGX_TIMER_INFINITE;
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94
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95 if (ngx_quic_handle_ack_frame_range(c, ctx, min, max, &send_time)
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96 != NGX_OK)
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97 {
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98 return NGX_ERROR;
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99 }
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100
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101 /* RFC 9000, 13.2.4. Limiting Ranges by Tracking ACK Frames */
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102 if (ctx->largest_ack < max || ctx->largest_ack == NGX_QUIC_UNSET_PN) {
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103 ctx->largest_ack = max;
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104 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
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105 "quic updated largest received ack:%uL", max);
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106
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107 /*
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108 * RFC 9002, 5.1. Generating RTT Samples
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109 *
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110 * An endpoint generates an RTT sample on receiving an
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111 * ACK frame that meets the following two conditions:
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112 *
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113 * - the largest acknowledged packet number is newly acknowledged
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114 * - at least one of the newly acknowledged packets was ack-eliciting.
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115 */
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116
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117 if (send_time.max_pn != NGX_TIMER_INFINITE) {
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118 ngx_quic_rtt_sample(c, ack, pkt->level, send_time.max_pn);
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119 }
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120 }
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121
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122 if (f->data) {
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123 pos = f->data->buf->pos;
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124 end = f->data->buf->last;
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125
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126 } else {
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127 pos = NULL;
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128 end = NULL;
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129 }
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130
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131 for (i = 0; i < ack->range_count; i++) {
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132
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133 n = ngx_quic_parse_ack_range(pkt->log, pos, end, &gap, &range);
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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
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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 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
296 ngx_msec_t timer;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
297 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
298 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
299
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
300 if (f->plen == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
301 return;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
302 }
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 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
305 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
306
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
307 cg->in_flight -= f->plen;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
308
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
309 timer = f->last - cg->recovery_start;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
310
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
311 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
312 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
313 "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
314 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
315
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
316 return;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
317 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
318
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
319 if (cg->window < cg->ssthresh) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
320 cg->window += f->plen;
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 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
323 "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
324 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
325
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
326 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
327 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
328
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
329 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
330 "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
331 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
332 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
333
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
334 /* prevent recovery_start from wrapping */
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 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
337
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
338 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
339 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 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
342
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
343
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
344 static void
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
345 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
346 uint64_t pn)
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
347 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
348 uint64_t base;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
349 ngx_uint_t i, smallest, largest;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
350 ngx_quic_ack_range_t *r;
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 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
353 "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
354 " 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
355 ctx->first_range, ctx->nranges);
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 base = ctx->largest_range;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
358
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
359 if (base == NGX_QUIC_UNSET_PN) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
360 return;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
361 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
362
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
363 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
364 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
365 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
366
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
367 largest = base;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
368 smallest = largest - ctx->first_range;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
369
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
370 if (pn >= largest) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
371 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
372 ctx->first_range = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
373 ctx->nranges = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
374 return;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
377 if (pn >= smallest) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
378 ctx->first_range = largest - pn - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
379 ctx->nranges = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
380 return;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
381 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
382
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
383 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
384 r = &ctx->ranges[i];
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 largest = smallest - r->gap - 2;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
387 smallest = largest - r->range;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
388
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
389 if (pn >= largest) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
390 ctx->nranges = i;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
391 return;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
392 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
393 if (pn >= smallest) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
394 r->range = largest - pn - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
395 ctx->nranges = i + 1;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
396 return;
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 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
399 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
400
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 static ngx_int_t
8792
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
403 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
404 {
8792
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
405 ngx_uint_t i, nlost;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
406 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
407 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
408 ngx_quic_frame_t *start;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
409 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
410 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
411
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
412 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
413 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
414 thr = ngx_quic_lost_threshold(qc);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
415
8792
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
416 /* send time of lost packets across all send contexts */
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
417 oldest = NGX_TIMER_INFINITE;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
418 newest = NGX_TIMER_INFINITE;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
419
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
420 nlost = 0;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
421
8751
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
422 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
423
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
424 ctx = &qc->send_ctx[i];
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
425
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
426 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
427 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
428 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
429
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
430 while (!ngx_queue_empty(&ctx->sent)) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
431
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
432 q = ngx_queue_head(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
433 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
434
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
435 if (start->pnum > ctx->largest_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
436 break;
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 wait = start->last + thr - now;
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 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
442 "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
443 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
444
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
445 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
446 && 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
447 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
448 break;
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
8792
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
451 if (start->last > qc->first_rtt) {
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
452
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
453 if (oldest == NGX_TIMER_INFINITE || start->last < oldest) {
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
454 oldest = start->last;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
455 }
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
456
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
457 if (newest == NGX_TIMER_INFINITE || start->last > newest) {
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
458 newest = start->last;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
459 }
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
460
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
461 nlost++;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
462 }
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
463
8751
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
464 ngx_quic_resend_frames(c, ctx);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
465 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
466 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
467
8792
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
468
8797
4715f3e669f1 QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8792
diff changeset
469 /* RFC 9002, 7.6.2. Establishing Persistent Congestion */
8792
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
470
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 * 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
473 * information is available for such packets. This limits persistent
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
474 * congestion algorithm to packets mentioned within ACK ranges of the
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
475 * latest ACK frame.
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
476 */
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
477
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
478 if (st && nlost >= 2 && (st->newest < oldest || st->oldest > newest)) {
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 if (newest - oldest > ngx_quic_pcg_duration(c)) {
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
481 ngx_quic_persistent_congestion(c);
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
482 }
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
483 }
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
484
8751
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
485 ngx_quic_set_lost_timer(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
486
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
487 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
488 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
489
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
490
8792
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
491 static ngx_msec_t
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
492 ngx_quic_pcg_duration(ngx_connection_t *c)
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
493 {
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
494 ngx_msec_t duration;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
495 ngx_quic_connection_t *qc;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
496
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
497 qc = ngx_quic_get_connection(c);
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
498
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
499 duration = qc->avg_rtt;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
500 duration += ngx_max(4 * qc->rttvar, NGX_QUIC_TIME_GRANULARITY);
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
501 duration += qc->ctp.max_ack_delay;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
502 duration *= NGX_QUIC_PERSISTENT_CONGESTION_THR;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
503
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
504 return duration;
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
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 static void
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
509 ngx_quic_persistent_congestion(ngx_connection_t *c)
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
510 {
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
511 ngx_quic_congestion_t *cg;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
512 ngx_quic_connection_t *qc;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
513
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
514 qc = ngx_quic_get_connection(c);
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
515 cg = &qc->congestion;
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 cg->recovery_start = ngx_current_msec;
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
518 cg->window = qc->tp.max_udp_payload_size * 2;
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_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
521 "quic persistent congestion win:%uz", cg->window);
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
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
524
8751
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
525 void
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
526 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
527 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
528 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
529 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
530 ngx_quic_stream_t *qs;
8751
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
531 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
532
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
533 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
534 q = ngx_queue_head(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
535 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
536
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
537 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
538 "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
539
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
540 ngx_quic_congestion_lost(c, start);
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 do {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
543 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
544
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
545 if (f->pnum != start->pnum) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
546 break;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
547 }
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 q = ngx_queue_next(q);
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 ngx_queue_remove(&f->queue);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
552
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
553 switch (f->type) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
554 case NGX_QUIC_FT_ACK:
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
555 case NGX_QUIC_FT_ACK_ECN:
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
556 if (ctx->level == ssl_encryption_application) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
557 /* force generation of most recent acknowledgment */
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
558 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
559 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
560
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
561 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
562 break;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
563
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
564 case NGX_QUIC_FT_PING:
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
565 case NGX_QUIC_FT_PATH_RESPONSE:
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
566 case NGX_QUIC_FT_CONNECTION_CLOSE:
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
567 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
568 break;
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 case NGX_QUIC_FT_MAX_DATA:
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
571 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
572 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
573 break;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
574
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
575 case NGX_QUIC_FT_MAX_STREAMS:
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
576 case NGX_QUIC_FT_MAX_STREAMS2:
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
577 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
578 ? qc->streams.client_max_streams_bidi
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
579 : qc->streams.client_max_streams_uni;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
580 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
581 break;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
582
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
583 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
584 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
585 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
586 if (qs == NULL) {
8751
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
587 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
588 break;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
589 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
590
8779
f52a2b77d406 QUIC: generic buffering for stream input.
Roman Arutyunyan <arut@nginx.com>
parents: 8763
diff changeset
591 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
592 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
593 break;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
594
8820
4009f120cad4 QUIC: eliminated stream type from ngx_quic_stream_frame_t.
Roman Arutyunyan <arut@nginx.com>
parents: 8797
diff changeset
595 case NGX_QUIC_FT_STREAM:
8761
225e9f1dfe7c QUIC: renamed stream variables from sn to qs.
Roman Arutyunyan <arut@nginx.com>
parents: 8760
diff changeset
596 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
597
8761
225e9f1dfe7c QUIC: renamed stream variables from sn to qs.
Roman Arutyunyan <arut@nginx.com>
parents: 8760
diff changeset
598 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
599 /* RESET_STREAM was sent */
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
600 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
601 break;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
602 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
603
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
604 /* fall through */
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
605
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
606 default:
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
607 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
608 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
609
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
610 } 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
611
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
612 if (qc->closing) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
613 return;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
616 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
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
620 static void
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
621 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
622 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
623 ngx_msec_t timer;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
624 ngx_quic_congestion_t *cg;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
625 ngx_quic_connection_t *qc;
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 if (f->plen == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
628 return;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
629 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
630
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
631 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
632 cg = &qc->congestion;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
633
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
634 cg->in_flight -= f->plen;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
635 f->plen = 0;
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 timer = f->last - cg->recovery_start;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
638
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
639 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
640 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
641 "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
642 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
643
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
644 return;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
645 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
646
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
647 cg->recovery_start = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
648 cg->window /= 2;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
649
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
650 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
651 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
652 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
653
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
654 cg->ssthresh = cg->window;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
655
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
656 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
657 "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
658 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
659 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
660
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 void
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
663 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
664 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
665 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
666 ngx_msec_t now;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
667 ngx_queue_t *q;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
668 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
669 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
670 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
671 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
672
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
673 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
674 now = ngx_current_msec;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
675
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
676 lost = -1;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
677 pto = -1;
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 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
680 ctx = &qc->send_ctx[i];
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
681
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
682 if (ngx_queue_empty(&ctx->sent)) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
683 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
684 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
685
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
686 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
687 q = ngx_queue_head(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
688 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
689 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
690
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
691 if (f->pnum <= ctx->largest_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
692 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
693 w = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
694 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
695
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
696 if (lost == -1 || w < lost) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
697 lost = w;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
698 }
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 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
701
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
702 q = ngx_queue_last(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
703 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
704 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
705
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
706 if (w < 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
707 w = 0;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
710 if (pto == -1 || w < pto) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
711 pto = w;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
715 if (qc->pto.timer_set) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
716 ngx_del_timer(&qc->pto);
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 if (lost != -1) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
720 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
721 "quic lost timer lost:%M", lost);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
722
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
723 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
724 ngx_add_timer(&qc->pto, lost);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
725 return;
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) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
729 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
730 "quic lost timer pto:%M", pto);
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 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
733 ngx_add_timer(&qc->pto, pto);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
734 return;
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 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
738 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
739
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 ngx_msec_t
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
742 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
743 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
744 ngx_msec_t duration;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
745 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
746
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
747 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
748
8797
4715f3e669f1 QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8792
diff changeset
749 /* 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
750 duration = qc->avg_rtt;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
751
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
752 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
753 duration <<= qc->pto_count;
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 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
756 return duration;
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 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
760 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
761 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
762
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
763 return duration;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
766
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
767 static
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
768 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
769 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
770 ngx_connection_t *c;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
771
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
772 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
773
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
774 c = ev->data;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
775
8792
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8779
diff changeset
776 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
777 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
778 }
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 ngx_quic_connstate_dbg(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
781 }
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 void
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
785 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
786 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
787 ngx_uint_t i;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
788 ngx_msec_t now;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
789 ngx_queue_t *q, *next;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
790 ngx_connection_t *c;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
791 ngx_quic_frame_t *f;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
792 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
793 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
794
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
795 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
796
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
797 c = ev->data;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
798 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
799 now = ngx_current_msec;
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 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
802
8763
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8761
diff changeset
803 ctx = &qc->send_ctx[i];
8751
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 if (ngx_queue_empty(&ctx->sent)) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
806 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
807 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
808
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
809 q = ngx_queue_head(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
810 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
811
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
812 if (f->pnum <= ctx->largest_ack
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
813 && 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
814 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
815 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
816 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
817
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
818 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
819 continue;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
820 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
821
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
822 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
823 "quic pto %s pto_count:%ui",
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
824 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
825
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
826 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
827 q != ngx_queue_sentinel(&ctx->frames);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
828 /* void */)
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 next = ngx_queue_next(q);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
831 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
832
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
833 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
834 ngx_queue_remove(q);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
835 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
836 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
837
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
838 q = next;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
841 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
842 q != ngx_queue_sentinel(&ctx->sent);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
843 /* void */)
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
844 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
845 next = ngx_queue_next(q);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
846 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
847
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
848 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
849 ngx_quic_congestion_lost(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
850 ngx_queue_remove(q);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
851 ngx_quic_free_frame(c, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
852 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
853
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
854 q = next;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
857 /* enforce 2 udp datagrams */
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 f = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
860 if (f == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
861 break;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
864 f->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
865 f->type = NGX_QUIC_FT_PING;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
866 f->flush = 1;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
867
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
868 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
869
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
870 f = ngx_quic_alloc_frame(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
871 if (f == NULL) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
872 break;
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 f->level = ctx->level;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
876 f->type = NGX_QUIC_FT_PING;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
877
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
878 ngx_quic_queue_frame(qc, f);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
879 }
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 qc->pto_count++;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
882
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
883 ngx_quic_connstate_dbg(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
884 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
887 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
888 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
889 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
890 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
891 uint64_t prev_pending;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
892 ngx_uint_t i, nr;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
893 ngx_quic_send_ctx_t *ctx;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
894 ngx_quic_ack_range_t *r;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
895 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
896
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
897 c->log->action = "preparing ack";
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 = ngx_quic_get_connection(c);
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 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
902
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
903 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
904 "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
905 " 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
906 ctx->first_range, ctx->nranges);
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 prev_pending = ctx->pending_ack;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
909
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
910 if (pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
911
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
912 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
913
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
914 if (ctx->send_ack == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
915 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
916 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
917
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
918 ctx->send_ack++;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
919
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
920 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
921 || ctx->pending_ack < pkt->pn)
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
922 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
923 ctx->pending_ack = pkt->pn;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
924 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
927 base = ctx->largest_range;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
928 pn = pkt->pn;
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 if (base == NGX_QUIC_UNSET_PN) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
931 ctx->largest_range = pn;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
932 ctx->largest_received = pkt->received;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
933 return NGX_OK;
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 if (base == pn) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
937 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
938 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
939
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
940 largest = base;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
941 smallest = largest - ctx->first_range;
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 if (pn > base) {
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 if (pn - base == 1) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
946 ctx->first_range++;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
947 ctx->largest_range = pn;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
948 ctx->largest_received = pkt->received;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
949
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
950 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
951
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
952 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
953 /* 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
954
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
955 /* 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
956 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
957
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
958 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
959 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
960 return NGX_ERROR;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
961 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
964 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
965 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
966 }
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
969 gap = pn - base - 2;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
970 range = ctx->first_range;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
971
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
972 ctx->first_range = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
973 ctx->largest_range = pn;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
974 ctx->largest_received = pkt->received;
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 /* 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
977 if (pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
978 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
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 i = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
982
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
983 goto insert;
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 /* 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
988
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
989 /* packet is out of order */
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
990 if (pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
991 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
992 }
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 if (pn >= smallest && pn <= largest) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
995 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
996 }
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 #if (NGX_SUPPRESS_WARN)
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
999 r = NULL;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1000 #endif
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1001
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1002 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
1003 r = &ctx->ranges[i];
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 ge = smallest - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1006 gs = ge - r->gap;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1007
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1008 if (pn >= gs && pn <= ge) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1009
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1010 if (gs == ge) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1011 /* 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
1012
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1013 /* 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
1014
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1015 if (i == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1016 ctx->first_range += r->range + 2;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1017
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1018 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1019 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
1020 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1021
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1022 nr = ctx->nranges - i - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1023 if (nr) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1024 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
1025 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
1026 }
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 ctx->nranges--;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1029
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1030 } else if (pn == gs) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1031 /* 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
1032 r->gap--;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1033 r->range++;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1034
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1035 } else if (pn == ge) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1036 /* 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
1037 r->gap--;
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 if (i == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1040 ctx->first_range++;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1041
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1042 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1043 ctx->ranges[i - 1].range++;
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 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1047 /* 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
1048
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1049 gap = ge - pn - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1050 range = 0;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1051
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1052 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
1053 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
1054 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
1055 return NGX_ERROR;
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 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1058
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1059 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
1060 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
1061 }
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 r->gap = pn - gs - 1;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1065 goto insert;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1068 return NGX_OK;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1071 largest = smallest - r->gap - 2;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1072 smallest = largest - r->range;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1073
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1074 if (pn >= smallest && pn <= largest) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1075 /* this packet number is already known */
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1076 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1077 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1078
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 if (pn == smallest - 1) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1082 /* extend first or last range */
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1083
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1084 if (i == 0) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1085 ctx->first_range++;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1086
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1087 } else {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1088 r->range++;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1089 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1090
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1091 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1092 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1093
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1094 /* 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
1095
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1096 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
1097 /* 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
1098
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1099 if (pkt->need_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1100 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
1101 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1102
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1103 return NGX_OK;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1106 gap = smallest - 2 - pn;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1107 range = 0;
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 insert:
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 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
1112 ctx->nranges++;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1115 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
1116 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
1117
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1118 ctx->ranges[i].gap = gap;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1119 ctx->ranges[i].range = range;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1125 ngx_int_t
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1126 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
1127 {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1128 ngx_msec_t delay;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1129 ngx_quic_connection_t *qc;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1130
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1131 if (!ctx->send_ack) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1132 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1133 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1134
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1135 if (ctx->level == ssl_encryption_application) {
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1136
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1137 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
1138 qc = ngx_quic_get_connection(c);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1139
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1140 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
1141 && delay < qc->tp.max_ack_delay)
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 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
1144 ngx_add_timer(&qc->push,
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1145 qc->tp.max_ack_delay - delay);
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1146 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1147
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1148 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1149 }
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1150 }
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 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
1153 return NGX_ERROR;
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
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1156 ctx->send_ack = 0;
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 return NGX_OK;
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
1159 }