Mercurial > hg > nginx
annotate src/event/quic/ngx_event_quic_ack.c @ 9295:c5623963c29e
Upstream: fixed proxy_no_cache when caching errors.
Caching errors, notably intercepted errors and internally generated
502/504 errors, as well as handling of cache revalidation with 304,
did not take into account u->conf->no_cache predicates configured.
As a result, an error might be cached even if configuration explicitly
says not to. Fix is to check u->conf->no_cache in these cases.
To simplify usage in multiple places, checking u->conf->no_cache is now
done in a separate function. As a minor optimization, u->conf->no_cache
is only checked if u->cacheable is set.
As a side effect, this change also fixes caching errors after
proxy_cache_bypass. Also, during cache revalidation u->cacheable is
now tested, so 304 responses which disable caching won't extend
cacheability of stored responses.
Additionally, when caching internally generated 502/504 errors
u->cacheable is now explicitly updated from u->headers_in.no_cache and
u->headers_in.expired, restoring the behaviour before 8041:0784ab86ad08
(1.23.0) when an error happens while reading the response headers.
Reported by Kirill A. Korinsky,
https://freenginx.org/pipermail/nginx/2024-April/000082.html
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 25 Jun 2024 21:44:50 +0300 |
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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: kGranularity */ |
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18 #define NGX_QUIC_TIME_GRANULARITY 1 /* ms */ |
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19 |
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20 /* RFC 9002, 7.6.1. Duration: kPersistentCongestionThreshold */ |
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21 #define NGX_QUIC_PERSISTENT_CONGESTION_THR 3 |
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22 |
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23 |
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24 /* send time of ACK'ed packets */ |
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25 typedef struct { |
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26 ngx_msec_t max_pn; |
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27 ngx_msec_t oldest; |
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28 ngx_msec_t newest; |
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29 } ngx_quic_ack_stat_t; |
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30 |
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31 |
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32 static ngx_inline ngx_msec_t ngx_quic_lost_threshold(ngx_quic_connection_t *qc); |
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33 static void ngx_quic_rtt_sample(ngx_connection_t *c, ngx_quic_ack_frame_t *ack, |
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34 enum ssl_encryption_level_t level, ngx_msec_t send_time); |
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35 static ngx_int_t ngx_quic_handle_ack_frame_range(ngx_connection_t *c, |
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36 ngx_quic_send_ctx_t *ctx, uint64_t min, uint64_t max, |
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37 ngx_quic_ack_stat_t *st); |
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38 static void ngx_quic_drop_ack_ranges(ngx_connection_t *c, |
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39 ngx_quic_send_ctx_t *ctx, uint64_t pn); |
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40 static ngx_int_t ngx_quic_detect_lost(ngx_connection_t *c, |
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41 ngx_quic_ack_stat_t *st); |
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42 static ngx_msec_t ngx_quic_pcg_duration(ngx_connection_t *c); |
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43 static void ngx_quic_persistent_congestion(ngx_connection_t *c); |
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44 static void ngx_quic_congestion_lost(ngx_connection_t *c, |
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45 ngx_quic_frame_t *frame); |
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46 static void ngx_quic_lost_handler(ngx_event_t *ev); |
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47 |
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48 |
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49 /* RFC 9002, 6.1.2. Time Threshold: kTimeThreshold, kGranularity */ |
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50 static ngx_inline ngx_msec_t |
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51 ngx_quic_lost_threshold(ngx_quic_connection_t *qc) |
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52 { |
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53 ngx_msec_t thr; |
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54 |
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55 thr = ngx_max(qc->latest_rtt, qc->avg_rtt); |
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56 thr += thr >> 3; |
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57 |
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58 return ngx_max(thr, NGX_QUIC_TIME_GRANULARITY); |
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59 } |
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60 |
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61 |
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62 ngx_int_t |
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63 ngx_quic_handle_ack_frame(ngx_connection_t *c, ngx_quic_header_t *pkt, |
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64 ngx_quic_frame_t *f) |
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65 { |
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66 ssize_t n; |
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67 u_char *pos, *end; |
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68 uint64_t min, max, gap, range; |
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69 ngx_uint_t i; |
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70 ngx_quic_ack_stat_t send_time; |
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71 ngx_quic_send_ctx_t *ctx; |
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72 ngx_quic_ack_frame_t *ack; |
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73 ngx_quic_connection_t *qc; |
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74 |
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75 qc = ngx_quic_get_connection(c); |
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76 |
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77 ctx = ngx_quic_get_send_ctx(qc, pkt->level); |
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78 |
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79 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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80 "quic ngx_quic_handle_ack_frame level:%d", pkt->level); |
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81 |
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82 ack = &f->u.ack; |
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83 |
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84 /* |
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85 * RFC 9000, 19.3.1. ACK Ranges |
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86 * |
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87 * If any computed packet number is negative, an endpoint MUST |
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88 * generate a connection error of type FRAME_ENCODING_ERROR. |
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89 */ |
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90 |
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91 if (ack->first_range > ack->largest) { |
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92 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR; |
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93 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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94 "quic invalid first range in ack frame"); |
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95 return NGX_ERROR; |
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96 } |
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97 |
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98 min = ack->largest - ack->first_range; |
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99 max = ack->largest; |
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100 |
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101 send_time.oldest = NGX_TIMER_INFINITE; |
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102 send_time.newest = NGX_TIMER_INFINITE; |
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103 |
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104 if (ngx_quic_handle_ack_frame_range(c, ctx, min, max, &send_time) |
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105 != NGX_OK) |
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106 { |
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107 return NGX_ERROR; |
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108 } |
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109 |
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110 /* RFC 9000, 13.2.4. Limiting Ranges by Tracking ACK Frames */ |
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111 if (ctx->largest_ack < max || ctx->largest_ack == NGX_QUIC_UNSET_PN) { |
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112 ctx->largest_ack = max; |
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113 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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114 "quic updated largest received ack:%uL", max); |
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115 |
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116 /* |
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117 * RFC 9002, 5.1. Generating RTT Samples |
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118 * |
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119 * An endpoint generates an RTT sample on receiving an |
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120 * ACK frame that meets the following two conditions: |
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121 * |
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122 * - the largest acknowledged packet number is newly acknowledged |
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123 * - at least one of the newly acknowledged packets was ack-eliciting. |
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124 */ |
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125 |
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126 if (send_time.max_pn != NGX_TIMER_INFINITE) { |
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127 ngx_quic_rtt_sample(c, ack, pkt->level, send_time.max_pn); |
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128 } |
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129 } |
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130 |
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131 if (f->data) { |
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132 pos = f->data->buf->pos; |
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133 end = f->data->buf->last; |
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134 |
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135 } else { |
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136 pos = NULL; |
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137 end = NULL; |
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138 } |
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139 |
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140 for (i = 0; i < ack->range_count; i++) { |
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141 |
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142 n = ngx_quic_parse_ack_range(pkt->log, pos, end, &gap, &range); |
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143 if (n == NGX_ERROR) { |
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144 return NGX_ERROR; |
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145 } |
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146 pos += n; |
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147 |
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148 if (gap + 2 > min) { |
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149 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR; |
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150 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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151 "quic invalid range:%ui in ack frame", i); |
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152 return NGX_ERROR; |
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153 } |
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154 |
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155 max = min - gap - 2; |
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156 |
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157 if (range > max) { |
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158 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR; |
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159 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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160 "quic invalid range:%ui in ack frame", i); |
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161 return NGX_ERROR; |
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162 } |
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163 |
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164 min = max - range; |
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165 |
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166 if (ngx_quic_handle_ack_frame_range(c, ctx, min, max, &send_time) |
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167 != NGX_OK) |
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168 { |
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169 return NGX_ERROR; |
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170 } |
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171 } |
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172 |
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173 return ngx_quic_detect_lost(c, &send_time); |
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174 } |
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175 |
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176 |
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177 static void |
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178 ngx_quic_rtt_sample(ngx_connection_t *c, ngx_quic_ack_frame_t *ack, |
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179 enum ssl_encryption_level_t level, ngx_msec_t send_time) |
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180 { |
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181 ngx_msec_t latest_rtt, ack_delay, adjusted_rtt, rttvar_sample; |
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182 ngx_quic_connection_t *qc; |
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183 |
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184 qc = ngx_quic_get_connection(c); |
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185 |
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186 latest_rtt = ngx_current_msec - send_time; |
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187 qc->latest_rtt = latest_rtt; |
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188 |
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189 if (qc->min_rtt == NGX_TIMER_INFINITE) { |
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190 qc->min_rtt = latest_rtt; |
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191 qc->avg_rtt = latest_rtt; |
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192 qc->rttvar = latest_rtt / 2; |
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193 qc->first_rtt = ngx_current_msec; |
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194 |
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195 } else { |
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196 qc->min_rtt = ngx_min(qc->min_rtt, latest_rtt); |
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197 |
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198 ack_delay = (ack->delay << qc->ctp.ack_delay_exponent) / 1000; |
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199 |
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200 if (c->ssl->handshaked) { |
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201 ack_delay = ngx_min(ack_delay, qc->ctp.max_ack_delay); |
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202 } |
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203 |
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204 adjusted_rtt = latest_rtt; |
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205 |
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206 if (qc->min_rtt + ack_delay < latest_rtt) { |
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207 adjusted_rtt -= ack_delay; |
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208 } |
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209 |
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210 rttvar_sample = ngx_abs((ngx_msec_int_t) (qc->avg_rtt - adjusted_rtt)); |
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211 qc->rttvar += (rttvar_sample >> 2) - (qc->rttvar >> 2); |
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212 qc->avg_rtt += (adjusted_rtt >> 3) - (qc->avg_rtt >> 3); |
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213 } |
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214 |
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215 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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216 "quic rtt sample latest:%M min:%M avg:%M var:%M", |
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217 latest_rtt, qc->min_rtt, qc->avg_rtt, qc->rttvar); |
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218 } |
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219 |
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220 |
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221 static ngx_int_t |
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222 ngx_quic_handle_ack_frame_range(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
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223 uint64_t min, uint64_t max, ngx_quic_ack_stat_t *st) |
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224 { |
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225 ngx_uint_t found; |
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226 ngx_queue_t *q; |
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227 ngx_quic_frame_t *f; |
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228 ngx_quic_connection_t *qc; |
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229 |
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230 qc = ngx_quic_get_connection(c); |
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231 |
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232 if (ctx->level == ssl_encryption_application) { |
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233 if (ngx_quic_handle_path_mtu(c, qc->path, min, max) != NGX_OK) { |
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QUIC: path MTU discovery.
Roman Arutyunyan <arut@nginx.com>
parents:
9143
diff
changeset
|
234 return NGX_ERROR; |
58afcd72446f
QUIC: path MTU discovery.
Roman Arutyunyan <arut@nginx.com>
parents:
9143
diff
changeset
|
235 } |
58afcd72446f
QUIC: path MTU discovery.
Roman Arutyunyan <arut@nginx.com>
parents:
9143
diff
changeset
|
236 } |
58afcd72446f
QUIC: path MTU discovery.
Roman Arutyunyan <arut@nginx.com>
parents:
9143
diff
changeset
|
237 |
8792
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
238 st->max_pn = NGX_TIMER_INFINITE; |
8751
bc910a5ec737
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
239 found = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
240 |
8884
1798acc01970
QUIC: optimized ack range processing.
Vladimir Homutov <vl@nginx.com>
parents:
8823
diff
changeset
|
241 q = ngx_queue_head(&ctx->sent); |
8751
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
242 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
243 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
|
244 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
245 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
8884
1798acc01970
QUIC: optimized ack range processing.
Vladimir Homutov <vl@nginx.com>
parents:
8823
diff
changeset
|
246 q = ngx_queue_next(q); |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
247 |
8884
1798acc01970
QUIC: optimized ack range processing.
Vladimir Homutov <vl@nginx.com>
parents:
8823
diff
changeset
|
248 if (f->pnum > max) { |
1798acc01970
QUIC: optimized ack range processing.
Vladimir Homutov <vl@nginx.com>
parents:
8823
diff
changeset
|
249 break; |
1798acc01970
QUIC: optimized ack range processing.
Vladimir Homutov <vl@nginx.com>
parents:
8823
diff
changeset
|
250 } |
1798acc01970
QUIC: optimized ack range processing.
Vladimir Homutov <vl@nginx.com>
parents:
8823
diff
changeset
|
251 |
1798acc01970
QUIC: optimized ack range processing.
Vladimir Homutov <vl@nginx.com>
parents:
8823
diff
changeset
|
252 if (f->pnum >= min) { |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
253 ngx_quic_congestion_ack(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
254 |
bc910a5ec737
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
255 switch (f->type) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
256 case NGX_QUIC_FT_ACK: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
257 case NGX_QUIC_FT_ACK_ECN: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
258 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
|
259 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
260 |
8820
4009f120cad4
QUIC: eliminated stream type from ngx_quic_stream_frame_t.
Roman Arutyunyan <arut@nginx.com>
parents:
8797
diff
changeset
|
261 case NGX_QUIC_FT_STREAM: |
9052
2e51cf3ffd90
QUIC: defer stream removal until all its data is acked.
Roman Arutyunyan <arut@nginx.com>
parents:
9044
diff
changeset
|
262 case NGX_QUIC_FT_RESET_STREAM: |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
263 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
|
264 break; |
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 |
bc910a5ec737
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
267 if (f->pnum == max) { |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
268 st->max_pn = f->send_time; |
8792
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
269 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
270 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
271 /* save earliest and latest send times of frames ack'ed */ |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
272 if (st->oldest == NGX_TIMER_INFINITE || f->send_time < st->oldest) { |
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
273 st->oldest = f->send_time; |
8792
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
274 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
275 |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
276 if (st->newest == NGX_TIMER_INFINITE || f->send_time > st->newest) { |
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
277 st->newest = f->send_time; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
278 } |
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 ngx_queue_remove(&f->queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
281 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
282 found = 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
283 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
284 } |
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 if (!found) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
287 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
288 if (max < ctx->pnum) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
289 /* 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
|
290 return NGX_OK; |
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 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
|
294 "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
|
295 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
296 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
|
297 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
|
298 qc->error_reason = "unknown packet number"; |
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 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
301 } |
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 if (!qc->push.timer_set) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
304 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
|
305 } |
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 qc->pto_count = 0; |
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 return NGX_OK; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
312 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
313 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
314 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
|
315 { |
8823
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
316 ngx_uint_t blocked; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
317 ngx_msec_t timer; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
318 ngx_quic_congestion_t *cg; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
319 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
320 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
321 if (f->plen == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
322 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
323 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
324 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
325 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
326 cg = &qc->congestion; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
327 |
9196
6c8595b77e66
QUIC: path aware in-flight bytes accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9193
diff
changeset
|
328 if (f->pnum < qc->rst_pnum) { |
6c8595b77e66
QUIC: path aware in-flight bytes accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9193
diff
changeset
|
329 return; |
6c8595b77e66
QUIC: path aware in-flight bytes accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9193
diff
changeset
|
330 } |
6c8595b77e66
QUIC: path aware in-flight bytes accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9193
diff
changeset
|
331 |
8823
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
332 blocked = (cg->in_flight >= cg->window) ? 1 : 0; |
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
333 |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
334 cg->in_flight -= f->plen; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
335 |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
336 timer = f->send_time - cg->recovery_start; |
8751
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 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
|
340 "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
|
341 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
|
342 |
8823
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
343 goto done; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
344 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
345 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
346 if (cg->window < cg->ssthresh) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
347 cg->window += f->plen; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
348 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
349 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
|
350 "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
|
351 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
|
352 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
353 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
354 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
|
355 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
356 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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357 "quic congestion avoidance win:%uz ss:%z if:%uz", |
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358 cg->window, cg->ssthresh, cg->in_flight); |
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359 } |
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360 |
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|
361 /* prevent recovery_start from wrapping */ |
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|
362 |
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|
363 timer = cg->recovery_start - ngx_current_msec + qc->tp.max_idle_timeout * 2; |
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|
364 |
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|
365 if ((ngx_msec_int_t) timer < 0) { |
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|
366 cg->recovery_start = ngx_current_msec - qc->tp.max_idle_timeout * 2; |
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|
367 } |
8823
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Roman Arutyunyan <arut@nginx.com>
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|
368 |
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|
369 done: |
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|
370 |
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|
371 if (blocked && cg->in_flight < cg->window) { |
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parents:
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|
372 ngx_post_event(&qc->push, &ngx_posted_events); |
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373 } |
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|
374 } |
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|
375 |
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|
376 |
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|
377 static void |
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|
378 ngx_quic_drop_ack_ranges(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
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|
379 uint64_t pn) |
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parents:
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|
380 { |
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|
381 uint64_t base; |
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|
382 ngx_uint_t i, smallest, largest; |
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|
383 ngx_quic_ack_range_t *r; |
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|
384 |
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|
385 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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|
386 "quic ngx_quic_drop_ack_ranges pn:%uL largest:%uL" |
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387 " fr:%uL nranges:%ui", pn, ctx->largest_range, |
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|
388 ctx->first_range, ctx->nranges); |
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|
389 |
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|
390 base = ctx->largest_range; |
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|
391 |
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|
392 if (base == NGX_QUIC_UNSET_PN) { |
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parents:
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|
393 return; |
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parents:
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|
394 } |
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parents:
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|
395 |
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|
396 if (ctx->pending_ack != NGX_QUIC_UNSET_PN && pn >= ctx->pending_ack) { |
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|
397 ctx->pending_ack = NGX_QUIC_UNSET_PN; |
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|
398 } |
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diff
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|
399 |
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|
400 largest = base; |
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|
401 smallest = largest - ctx->first_range; |
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|
402 |
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parents:
diff
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|
403 if (pn >= largest) { |
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|
404 ctx->largest_range = NGX_QUIC_UNSET_PN; |
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|
405 ctx->first_range = 0; |
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|
406 ctx->nranges = 0; |
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parents:
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|
407 return; |
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parents:
diff
changeset
|
408 } |
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parents:
diff
changeset
|
409 |
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diff
changeset
|
410 if (pn >= smallest) { |
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|
411 ctx->first_range = largest - pn - 1; |
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|
412 ctx->nranges = 0; |
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parents:
diff
changeset
|
413 return; |
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parents:
diff
changeset
|
414 } |
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parents:
diff
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|
415 |
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|
416 for (i = 0; i < ctx->nranges; i++) { |
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|
417 r = &ctx->ranges[i]; |
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|
418 |
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|
419 largest = smallest - r->gap - 2; |
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|
420 smallest = largest - r->range; |
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|
421 |
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diff
changeset
|
422 if (pn >= largest) { |
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parents:
diff
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|
423 ctx->nranges = i; |
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parents:
diff
changeset
|
424 return; |
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parents:
diff
changeset
|
425 } |
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parents:
diff
changeset
|
426 if (pn >= smallest) { |
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parents:
diff
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|
427 r->range = largest - pn - 1; |
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diff
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|
428 ctx->nranges = i + 1; |
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parents:
diff
changeset
|
429 return; |
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parents:
diff
changeset
|
430 } |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
431 } |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
432 } |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
433 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
434 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
435 static ngx_int_t |
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Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
436 ngx_quic_detect_lost(ngx_connection_t *c, ngx_quic_ack_stat_t *st) |
8751
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parents:
diff
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|
437 { |
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004172345bdc
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diff
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|
438 ngx_uint_t i, nlost; |
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QUIC: persistent congestion calculation.
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parents:
8779
diff
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|
439 ngx_msec_t now, wait, thr, oldest, newest; |
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|
440 ngx_queue_t *q; |
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diff
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|
441 ngx_quic_frame_t *start; |
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parents:
diff
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|
442 ngx_quic_send_ctx_t *ctx; |
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parents:
diff
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|
443 ngx_quic_connection_t *qc; |
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parents:
diff
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|
444 |
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parents:
diff
changeset
|
445 qc = ngx_quic_get_connection(c); |
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parents:
diff
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|
446 now = ngx_current_msec; |
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parents:
diff
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|
447 thr = ngx_quic_lost_threshold(qc); |
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parents:
diff
changeset
|
448 |
8792
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parents:
8779
diff
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|
449 /* send time of lost packets across all send contexts */ |
004172345bdc
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parents:
8779
diff
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|
450 oldest = NGX_TIMER_INFINITE; |
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QUIC: persistent congestion calculation.
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parents:
8779
diff
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|
451 newest = NGX_TIMER_INFINITE; |
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parents:
8779
diff
changeset
|
452 |
004172345bdc
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Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
453 nlost = 0; |
004172345bdc
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parents:
8779
diff
changeset
|
454 |
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parents:
diff
changeset
|
455 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) { |
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parents:
diff
changeset
|
456 |
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parents:
diff
changeset
|
457 ctx = &qc->send_ctx[i]; |
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parents:
diff
changeset
|
458 |
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parents:
diff
changeset
|
459 if (ctx->largest_ack == NGX_QUIC_UNSET_PN) { |
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parents:
diff
changeset
|
460 continue; |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
461 } |
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parents:
diff
changeset
|
462 |
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parents:
diff
changeset
|
463 while (!ngx_queue_empty(&ctx->sent)) { |
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parents:
diff
changeset
|
464 |
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parents:
diff
changeset
|
465 q = ngx_queue_head(&ctx->sent); |
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parents:
diff
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|
466 start = ngx_queue_data(q, ngx_quic_frame_t, queue); |
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parents:
diff
changeset
|
467 |
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parents:
diff
changeset
|
468 if (start->pnum > ctx->largest_ack) { |
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parents:
diff
changeset
|
469 break; |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
470 } |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
471 |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
472 wait = start->send_time + thr - now; |
8751
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parents:
diff
changeset
|
473 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
474 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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parents:
diff
changeset
|
475 "quic detect_lost pnum:%uL thr:%M wait:%i level:%d", |
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parents:
diff
changeset
|
476 start->pnum, thr, (ngx_int_t) wait, start->level); |
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parents:
diff
changeset
|
477 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
478 if ((ngx_msec_int_t) wait > 0 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
479 && ctx->largest_ack - start->pnum < NGX_QUIC_PKT_THR) |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
480 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
481 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
482 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
483 |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
484 if (start->send_time > qc->first_rtt) { |
8792
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
485 |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
486 if (oldest == NGX_TIMER_INFINITE || start->send_time < oldest) { |
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
487 oldest = start->send_time; |
8792
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
488 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
489 |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
490 if (newest == NGX_TIMER_INFINITE || start->send_time > newest) { |
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
491 newest = start->send_time; |
8792
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
492 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
493 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
494 nlost++; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
495 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
496 |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
497 ngx_quic_resend_frames(c, ctx); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
498 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
499 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
500 |
8792
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
501 |
8797
4715f3e669f1
QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8792
diff
changeset
|
502 /* RFC 9002, 7.6.2. Establishing Persistent Congestion */ |
8792
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 /* |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
505 * 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
|
506 * information is available for such packets. This limits persistent |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
507 * congestion algorithm to packets mentioned within ACK ranges of the |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
508 * latest ACK frame. |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
509 */ |
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 if (st && nlost >= 2 && (st->newest < oldest || st->oldest > newest)) { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
512 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
513 if (newest - oldest > ngx_quic_pcg_duration(c)) { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
514 ngx_quic_persistent_congestion(c); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
515 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
516 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
517 |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
518 ngx_quic_set_lost_timer(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
519 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
520 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
521 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
522 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
523 |
8792
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
524 static ngx_msec_t |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
525 ngx_quic_pcg_duration(ngx_connection_t *c) |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
526 { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
527 ngx_msec_t duration; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
528 ngx_quic_connection_t *qc; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
529 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
530 qc = ngx_quic_get_connection(c); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
531 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
532 duration = qc->avg_rtt; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
533 duration += ngx_max(4 * qc->rttvar, NGX_QUIC_TIME_GRANULARITY); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
534 duration += qc->ctp.max_ack_delay; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
535 duration *= NGX_QUIC_PERSISTENT_CONGESTION_THR; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
536 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
537 return duration; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
538 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
539 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
540 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
541 static void |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
542 ngx_quic_persistent_congestion(ngx_connection_t *c) |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
543 { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
544 ngx_quic_congestion_t *cg; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
545 ngx_quic_connection_t *qc; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
546 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
547 qc = ngx_quic_get_connection(c); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
548 cg = &qc->congestion; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
549 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
550 cg->recovery_start = ngx_current_msec; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
551 cg->window = qc->tp.max_udp_payload_size * 2; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
552 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
553 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
554 "quic persistent congestion win:%uz", cg->window); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
555 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
556 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
557 |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
558 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
559 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
|
560 { |
9141
5d1e7c74aadf
QUIC: avoid accessing freed frame.
Roman Arutyunyan <arut@nginx.com>
parents:
9138
diff
changeset
|
561 uint64_t pnum; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
562 ngx_queue_t *q; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
563 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
|
564 ngx_quic_stream_t *qs; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
565 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
566 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
567 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
568 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
569 start = ngx_queue_data(q, ngx_quic_frame_t, queue); |
9141
5d1e7c74aadf
QUIC: avoid accessing freed frame.
Roman Arutyunyan <arut@nginx.com>
parents:
9138
diff
changeset
|
570 pnum = start->pnum; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
571 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
572 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
|
573 "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
|
574 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
575 ngx_quic_congestion_lost(c, start); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
576 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
577 do { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
578 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
|
579 |
9141
5d1e7c74aadf
QUIC: avoid accessing freed frame.
Roman Arutyunyan <arut@nginx.com>
parents:
9138
diff
changeset
|
580 if (f->pnum != pnum) { |
8751
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
584 q = ngx_queue_next(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
585 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
586 ngx_queue_remove(&f->queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
587 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
588 switch (f->type) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
589 case NGX_QUIC_FT_ACK: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
590 case NGX_QUIC_FT_ACK_ECN: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
591 if (ctx->level == ssl_encryption_application) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
592 /* force generation of most recent acknowledgment */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
593 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
|
594 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
595 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
596 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
597 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
598 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
599 case NGX_QUIC_FT_PING: |
9192
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
600 case NGX_QUIC_FT_PATH_CHALLENGE: |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
601 case NGX_QUIC_FT_PATH_RESPONSE: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
602 case NGX_QUIC_FT_CONNECTION_CLOSE: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
603 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
604 break; |
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 case NGX_QUIC_FT_MAX_DATA: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
607 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
|
608 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
609 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
610 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
611 case NGX_QUIC_FT_MAX_STREAMS: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
612 case NGX_QUIC_FT_MAX_STREAMS2: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
613 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
|
614 ? qc->streams.client_max_streams_bidi |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
615 : qc->streams.client_max_streams_uni; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
616 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
617 break; |
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 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
|
620 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
|
621 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
|
622 if (qs == NULL) { |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
623 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
624 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
625 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
626 |
8779
f52a2b77d406
QUIC: generic buffering for stream input.
Roman Arutyunyan <arut@nginx.com>
parents:
8763
diff
changeset
|
627 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
|
628 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
629 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
630 |
8820
4009f120cad4
QUIC: eliminated stream type from ngx_quic_stream_frame_t.
Roman Arutyunyan <arut@nginx.com>
parents:
8797
diff
changeset
|
631 case NGX_QUIC_FT_STREAM: |
8761
225e9f1dfe7c
QUIC: renamed stream variables from sn to qs.
Roman Arutyunyan <arut@nginx.com>
parents:
8760
diff
changeset
|
632 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
|
633 |
8990
b42a041d23a2
QUIC: introduced explicit stream states.
Roman Arutyunyan <arut@nginx.com>
parents:
8885
diff
changeset
|
634 if (qs) { |
b42a041d23a2
QUIC: introduced explicit stream states.
Roman Arutyunyan <arut@nginx.com>
parents:
8885
diff
changeset
|
635 if (qs->send_state == NGX_QUIC_STREAM_SEND_RESET_SENT |
b42a041d23a2
QUIC: introduced explicit stream states.
Roman Arutyunyan <arut@nginx.com>
parents:
8885
diff
changeset
|
636 || qs->send_state == NGX_QUIC_STREAM_SEND_RESET_RECVD) |
b42a041d23a2
QUIC: introduced explicit stream states.
Roman Arutyunyan <arut@nginx.com>
parents:
8885
diff
changeset
|
637 { |
b42a041d23a2
QUIC: introduced explicit stream states.
Roman Arutyunyan <arut@nginx.com>
parents:
8885
diff
changeset
|
638 ngx_quic_free_frame(c, f); |
b42a041d23a2
QUIC: introduced explicit stream states.
Roman Arutyunyan <arut@nginx.com>
parents:
8885
diff
changeset
|
639 break; |
b42a041d23a2
QUIC: introduced explicit stream states.
Roman Arutyunyan <arut@nginx.com>
parents:
8885
diff
changeset
|
640 } |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
641 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
642 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
643 /* fall through */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
644 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
645 default: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
646 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
|
647 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
648 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
649 } 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
|
650 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
651 if (qc->closing) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
652 return; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
655 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
|
656 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
657 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
658 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
659 static void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
660 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
|
661 { |
8823
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
662 ngx_uint_t blocked; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
663 ngx_msec_t timer; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
664 ngx_quic_congestion_t *cg; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
665 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
666 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
667 if (f->plen == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
668 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
669 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
670 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
671 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
672 cg = &qc->congestion; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
673 |
9196
6c8595b77e66
QUIC: path aware in-flight bytes accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9193
diff
changeset
|
674 if (f->pnum < qc->rst_pnum) { |
6c8595b77e66
QUIC: path aware in-flight bytes accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9193
diff
changeset
|
675 return; |
6c8595b77e66
QUIC: path aware in-flight bytes accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9193
diff
changeset
|
676 } |
6c8595b77e66
QUIC: path aware in-flight bytes accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9193
diff
changeset
|
677 |
8823
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
678 blocked = (cg->in_flight >= cg->window) ? 1 : 0; |
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
679 |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
680 cg->in_flight -= f->plen; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
681 f->plen = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
682 |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
683 timer = f->send_time - cg->recovery_start; |
8751
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 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
|
686 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
|
687 "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
|
688 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
|
689 |
8823
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
690 goto done; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
691 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
692 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
693 cg->recovery_start = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
694 cg->window /= 2; |
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 (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
|
697 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
|
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 cg->ssthresh = cg->window; |
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 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
|
703 "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
|
704 cg->window, cg->ssthresh, cg->in_flight); |
8823
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
705 |
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
706 done: |
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
707 |
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
708 if (blocked && cg->in_flight < cg->window) { |
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
709 ngx_post_event(&qc->push, &ngx_posted_events); |
f3331deed357
QUIC: limit in-flight bytes by congestion window.
Roman Arutyunyan <arut@nginx.com>
parents:
8820
diff
changeset
|
710 } |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
711 } |
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 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
715 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
|
716 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
717 ngx_uint_t i; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
718 ngx_msec_t now; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
719 ngx_queue_t *q; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
720 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
|
721 ngx_quic_frame_t *f; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
722 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
723 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
724 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
725 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
726 now = ngx_current_msec; |
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 lost = -1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
729 pto = -1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
730 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
731 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
|
732 ctx = &qc->send_ctx[i]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
733 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
734 if (ngx_queue_empty(&ctx->sent)) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
735 continue; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
738 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
|
739 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
740 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
741 w = (ngx_msec_int_t) |
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
742 (f->send_time + ngx_quic_lost_threshold(qc) - now); |
8751
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 if (f->pnum <= ctx->largest_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
745 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
|
746 w = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
747 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
748 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
749 if (lost == -1 || w < lost) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
750 lost = w; |
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 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
753 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
754 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
755 q = ngx_queue_last(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
756 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
757 w = (ngx_msec_int_t) |
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
758 (f->send_time + (ngx_quic_pto(c, ctx) << qc->pto_count) - now); |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
759 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
760 if (w < 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
761 w = 0; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
764 if (pto == -1 || w < pto) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
765 pto = w; |
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 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
768 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
769 if (qc->pto.timer_set) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
770 ngx_del_timer(&qc->pto); |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
773 if (lost != -1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
774 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
|
775 "quic lost timer lost:%M", lost); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
776 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
777 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
|
778 ngx_add_timer(&qc->pto, lost); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
779 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
780 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
781 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
782 if (pto != -1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
783 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
|
784 "quic lost timer pto:%M", pto); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
785 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
786 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
|
787 ngx_add_timer(&qc->pto, pto); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
788 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
789 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
790 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
791 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
|
792 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
793 |
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_msec_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
796 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
|
797 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
798 ngx_msec_t duration; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
799 ngx_quic_connection_t *qc; |
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 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
802 |
8797
4715f3e669f1
QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8792
diff
changeset
|
803 /* RFC 9002, Appendix A.8. Setting the Loss Detection Timer */ |
9095
52cddd44ec11
QUIC: removed check for in-flight packets in computing PTO.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9052
diff
changeset
|
804 |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
805 duration = qc->avg_rtt; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
806 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
|
807 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
808 if (ctx->level == ssl_encryption_application && c->ssl->handshaked) { |
9096
c6db94ec3841
QUIC: separated path validation retransmit backoff.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9095
diff
changeset
|
809 duration += qc->ctp.max_ack_delay; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
810 } |
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 return duration; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
813 } |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
816 static |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
817 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
|
818 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
819 ngx_connection_t *c; |
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 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
|
822 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
823 c = ev->data; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
824 |
8792
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8779
diff
changeset
|
825 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
|
826 ngx_quic_close_connection(c, NGX_ERROR); |
9112
d59277dd3d8c
QUIC: fixed post-close use-after-free.
Roman Arutyunyan <arut@nginx.com>
parents:
9096
diff
changeset
|
827 return; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
828 } |
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 ngx_quic_connstate_dbg(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
831 } |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
834 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
835 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
|
836 { |
9192
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
837 ngx_uint_t i, n; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
838 ngx_msec_t now; |
9143
48691bab4474
QUIC: fixed probe-congestion deadlock.
Roman Arutyunyan <arut@nginx.com>
parents:
9142
diff
changeset
|
839 ngx_queue_t *q; |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
840 ngx_msec_int_t w; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
841 ngx_connection_t *c; |
9192
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
842 ngx_quic_frame_t *f; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
843 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
844 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
845 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
846 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
|
847 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
848 c = ev->data; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
849 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
850 now = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
851 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
852 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
|
853 |
9015
a2fbae359828
QUIC: fixed indentation.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8990
diff
changeset
|
854 ctx = &qc->send_ctx[i]; |
8751
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 if (ngx_queue_empty(&ctx->sent)) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
857 continue; |
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 |
9142
7e8ee4b7cbf4
QUIC: fixed PTO expiration condition.
Roman Arutyunyan <arut@nginx.com>
parents:
9141
diff
changeset
|
860 q = ngx_queue_last(&ctx->sent); |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
861 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
862 w = (ngx_msec_int_t) |
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
863 (f->send_time + (ngx_quic_pto(c, ctx) << qc->pto_count) - now); |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
864 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
865 if (f->pnum <= ctx->largest_ack |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
866 && 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
|
867 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
868 continue; |
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 |
9193
ce1ff81e9b92
QUIC: ngx_quic_frame_t time fields cleanup.
Roman Arutyunyan <arut@nginx.com>
parents:
9192
diff
changeset
|
871 if (w > 0) { |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
872 continue; |
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 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
|
876 "quic pto %s pto_count:%ui", |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
877 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
|
878 |
9192
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
879 for (n = 0; n < 2; n++) { |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
880 |
9192
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
881 f = ngx_quic_alloc_frame(c); |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
882 if (f == NULL) { |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
883 goto failed; |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
884 } |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
885 |
9192
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
886 f->level = ctx->level; |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
887 f->type = NGX_QUIC_FT_PING; |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
888 f->ignore_congestion = 1; |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
889 |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
890 if (ngx_quic_frame_sendto(c, f, 0, qc->path) == NGX_ERROR) { |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
891 goto failed; |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
892 } |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
893 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
894 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
895 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
896 qc->pto_count++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
897 |
9143
48691bab4474
QUIC: fixed probe-congestion deadlock.
Roman Arutyunyan <arut@nginx.com>
parents:
9142
diff
changeset
|
898 ngx_quic_set_lost_timer(c); |
48691bab4474
QUIC: fixed probe-congestion deadlock.
Roman Arutyunyan <arut@nginx.com>
parents:
9142
diff
changeset
|
899 |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
900 ngx_quic_connstate_dbg(c); |
9192
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
901 |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
902 return; |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
903 |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
904 failed: |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
905 |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
906 ngx_quic_close_connection(c, NGX_ERROR); |
efcdaa66df2e
QUIC: congestion control in ngx_quic_frame_sendto().
Roman Arutyunyan <arut@nginx.com>
parents:
9170
diff
changeset
|
907 return; |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
908 } |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
911 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
912 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
|
913 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
914 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
|
915 uint64_t prev_pending; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
916 ngx_uint_t i, nr; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
917 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
918 ngx_quic_ack_range_t *r; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
919 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
920 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
921 c->log->action = "preparing ack"; |
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 qc = ngx_quic_get_connection(c); |
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 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
|
926 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
927 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
|
928 "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
|
929 " 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
|
930 ctx->first_range, ctx->nranges); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
931 |
9170
c80d111340dc
QUIC: prevented generating ACK frames with discarded keys.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9147
diff
changeset
|
932 if (!ngx_quic_keys_available(qc->keys, ctx->level, 1)) { |
c80d111340dc
QUIC: prevented generating ACK frames with discarded keys.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9147
diff
changeset
|
933 return NGX_OK; |
c80d111340dc
QUIC: prevented generating ACK frames with discarded keys.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9147
diff
changeset
|
934 } |
c80d111340dc
QUIC: prevented generating ACK frames with discarded keys.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9147
diff
changeset
|
935 |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
936 prev_pending = ctx->pending_ack; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
937 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
938 if (pkt->need_ack) { |
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 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
|
941 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
942 if (ctx->send_ack == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
943 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
|
944 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
945 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
946 ctx->send_ack++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
947 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
948 if (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
|
949 || ctx->pending_ack < pkt->pn) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
950 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
951 ctx->pending_ack = pkt->pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
952 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
953 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
954 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
955 base = ctx->largest_range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
956 pn = pkt->pn; |
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 (base == NGX_QUIC_UNSET_PN) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
959 ctx->largest_range = pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
960 ctx->largest_received = pkt->received; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
961 return NGX_OK; |
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 (base == pn) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
965 return NGX_OK; |
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 largest = base; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
969 smallest = largest - ctx->first_range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
970 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
971 if (pn > base) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
972 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
973 if (pn - base == 1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
974 ctx->first_range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
975 ctx->largest_range = pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
976 ctx->largest_received = pkt->received; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
977 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
978 return NGX_OK; |
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 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
981 /* 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
|
982 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
983 /* 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
|
984 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
|
985 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
986 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
|
987 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
|
988 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
989 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
990 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
991 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
992 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
|
993 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
|
994 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
995 } |
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 gap = pn - base - 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
998 range = ctx->first_range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
999 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1000 ctx->first_range = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1001 ctx->largest_range = pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1002 ctx->largest_received = pkt->received; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1003 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1004 /* 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
|
1005 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1006 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
|
1007 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1008 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1009 i = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1010 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1011 goto insert; |
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 } |
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 /* 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
|
1016 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1017 /* packet is out of order */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1018 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1019 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
|
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 if (pn >= smallest && pn <= largest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1023 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1024 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1025 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1026 #if (NGX_SUPPRESS_WARN) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1027 r = NULL; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1028 #endif |
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 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
|
1031 r = &ctx->ranges[i]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1032 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1033 ge = smallest - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1034 gs = ge - r->gap; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1035 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1036 if (pn >= gs && pn <= ge) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1037 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1038 if (gs == ge) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1039 /* 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
|
1040 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1041 /* 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
|
1042 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1043 if (i == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1044 ctx->first_range += r->range + 2; |
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 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
|
1048 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1049 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1050 nr = ctx->nranges - i - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1051 if (nr) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1052 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
|
1053 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
|
1054 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1055 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1056 ctx->nranges--; |
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 } else if (pn == gs) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1059 /* 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
|
1060 r->gap--; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1061 r->range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1062 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1063 } else if (pn == ge) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1064 /* 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
|
1065 r->gap--; |
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 if (i == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1068 ctx->first_range++; |
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 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1071 ctx->ranges[i - 1].range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1072 } |
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 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1075 /* 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
|
1076 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1077 gap = ge - pn - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1078 range = 0; |
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 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
|
1081 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
|
1082 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
|
1083 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1084 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1085 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1086 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1087 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
|
1088 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
|
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1092 r->gap = pn - gs - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1093 goto insert; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1094 } |
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 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1097 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1098 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1099 largest = smallest - r->gap - 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1100 smallest = largest - r->range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1101 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1102 if (pn >= smallest && pn <= largest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1103 /* this packet number is already known */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1104 return NGX_OK; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1107 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1108 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1109 if (pn == smallest - 1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1110 /* extend first or last range */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1111 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1112 if (i == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1113 ctx->first_range++; |
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 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1116 r->range++; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1119 return NGX_OK; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1122 /* 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
|
1123 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1124 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
|
1125 /* 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
|
1126 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1127 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1128 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
|
1129 } |
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 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1132 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1133 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1134 gap = smallest - 2 - pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1135 range = 0; |
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 insert: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1138 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1139 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
|
1140 ctx->nranges++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1141 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1142 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1143 ngx_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
|
1144 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
|
1145 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1146 ctx->ranges[i].gap = gap; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1147 ctx->ranges[i].range = range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1148 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1149 return NGX_OK; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1153 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1154 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
|
1155 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1156 ngx_msec_t delay; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1157 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1158 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1159 if (!ctx->send_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1160 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1161 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1162 |
9015
a2fbae359828
QUIC: fixed indentation.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8990
diff
changeset
|
1163 if (ctx->level == ssl_encryption_application) { |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1164 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1165 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
|
1166 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1167 |
9138
a90f79792b5d
QUIC: optimized ACK delay.
Roman Arutyunyan <arut@nginx.com>
parents:
9122
diff
changeset
|
1168 if (ngx_queue_empty(&ctx->frames) |
a90f79792b5d
QUIC: optimized ACK delay.
Roman Arutyunyan <arut@nginx.com>
parents:
9122
diff
changeset
|
1169 && ctx->send_ack < NGX_QUIC_MAX_ACK_GAP |
8751
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1170 && delay < qc->tp.max_ack_delay) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1171 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1172 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
|
1173 ngx_add_timer(&qc->push, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1174 qc->tp.max_ack_delay - delay); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1175 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1176 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1177 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1178 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1179 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1180 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1181 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
|
1182 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1183 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1184 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1185 ctx->send_ack = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1186 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1187 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1188 } |