Mercurial > hg > nginx-quic
annotate src/event/quic/ngx_event_quic_output.c @ 8761:19e063e955bf quic
QUIC: renamed buffer-related functions.
ngx_quic_alloc_buf() -> ngx_quic_alloc_chain(),
ngx_quic_free_bufs() -> ngx_quic_free_chain(),
ngx_quic_trim_bufs() -> ngx_quic_trim_chain()
author | Roman Arutyunyan <arut@nginx.com> |
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date | Thu, 16 Dec 2021 17:06:35 +0300 |
parents | e72db9162180 |
children | 1e2f4e9c8195 |
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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_UDP_PAYLOAD_OUT 1252 |
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14 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT6 1232 |
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15 |
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16 #define NGX_QUIC_MAX_UDP_SEGMENT_BUF 65487 /* 65K - IPv6 header */ |
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17 #define NGX_QUIC_MAX_SEGMENTS 64 /* UDP_MAX_SEGMENTS */ |
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18 |
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19 #define NGX_QUIC_RETRY_TOKEN_LIFETIME 3 /* seconds */ |
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20 #define NGX_QUIC_NEW_TOKEN_LIFETIME 600 /* seconds */ |
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21 #define NGX_QUIC_RETRY_BUFFER_SIZE 256 |
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22 /* 1 flags + 4 version + 3 x (1 + 20) s/o/dcid + itag + token(64) */ |
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23 |
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24 /* |
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25 * RFC 9000, 10.3. Stateless Reset |
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26 * |
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27 * Endpoints MUST discard packets that are too small to be valid QUIC |
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28 * packets. With the set of AEAD functions defined in [QUIC-TLS], |
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29 * short header packets that are smaller than 21 bytes are never valid. |
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30 */ |
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31 #define NGX_QUIC_MIN_PKT_LEN 21 |
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32 |
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33 #define NGX_QUIC_MIN_SR_PACKET 43 /* 5 rand + 16 srt + 22 padding */ |
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34 #define NGX_QUIC_MAX_SR_PACKET 1200 |
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35 |
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36 #define NGX_QUIC_CC_MIN_INTERVAL 1000 /* 1s */ |
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37 |
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38 #define NGX_QUIC_SOCKET_RETRY_DELAY 10 /* ms, for NGX_AGAIN on write */ |
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39 |
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40 |
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41 static ngx_int_t ngx_quic_create_datagrams(ngx_connection_t *c); |
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42 static void ngx_quic_commit_send(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx); |
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43 static void ngx_quic_revert_send(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
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44 uint64_t pnum); |
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45 #if ((NGX_HAVE_UDP_SEGMENT) && (NGX_HAVE_MSGHDR_MSG_CONTROL)) |
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46 static ngx_uint_t ngx_quic_allow_segmentation(ngx_connection_t *c); |
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47 static ngx_int_t ngx_quic_create_segments(ngx_connection_t *c); |
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48 static ssize_t ngx_quic_send_segments(ngx_connection_t *c, u_char *buf, |
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49 size_t len, struct sockaddr *sockaddr, socklen_t socklen, size_t segment); |
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50 #endif |
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51 static ssize_t ngx_quic_output_packet(ngx_connection_t *c, |
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52 ngx_quic_send_ctx_t *ctx, u_char *data, size_t max, size_t min); |
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53 static void ngx_quic_init_packet(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
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54 ngx_quic_header_t *pkt); |
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55 static ngx_uint_t ngx_quic_get_padding_level(ngx_connection_t *c); |
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56 static ssize_t ngx_quic_send(ngx_connection_t *c, u_char *buf, size_t len, |
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57 struct sockaddr *sockaddr, socklen_t socklen); |
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58 static void ngx_quic_set_packet_number(ngx_quic_header_t *pkt, |
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59 ngx_quic_send_ctx_t *ctx); |
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60 static size_t ngx_quic_path_limit(ngx_connection_t *c, ngx_quic_path_t *path, |
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61 size_t size); |
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62 |
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63 |
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64 size_t |
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65 ngx_quic_max_udp_payload(ngx_connection_t *c) |
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66 { |
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67 /* TODO: path MTU discovery */ |
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68 |
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69 #if (NGX_HAVE_INET6) |
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70 if (c->sockaddr->sa_family == AF_INET6) { |
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71 return NGX_QUIC_MAX_UDP_PAYLOAD_OUT6; |
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72 } |
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73 #endif |
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74 |
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75 return NGX_QUIC_MAX_UDP_PAYLOAD_OUT; |
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76 } |
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77 |
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78 |
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79 ngx_int_t |
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80 ngx_quic_output(ngx_connection_t *c) |
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81 { |
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82 size_t in_flight; |
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83 ngx_int_t rc; |
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84 ngx_quic_congestion_t *cg; |
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85 ngx_quic_connection_t *qc; |
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86 |
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87 c->log->action = "sending frames"; |
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88 |
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89 qc = ngx_quic_get_connection(c); |
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90 cg = &qc->congestion; |
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91 |
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92 in_flight = cg->in_flight; |
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93 |
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94 #if ((NGX_HAVE_UDP_SEGMENT) && (NGX_HAVE_MSGHDR_MSG_CONTROL)) |
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95 if (ngx_quic_allow_segmentation(c)) { |
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96 rc = ngx_quic_create_segments(c); |
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97 } else |
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98 #endif |
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99 { |
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100 rc = ngx_quic_create_datagrams(c); |
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101 } |
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102 |
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103 if (rc != NGX_OK) { |
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104 return NGX_ERROR; |
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105 } |
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106 |
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107 if (in_flight != cg->in_flight && !qc->send_timer_set && !qc->closing) { |
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108 qc->send_timer_set = 1; |
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109 ngx_add_timer(c->read, qc->tp.max_idle_timeout); |
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110 } |
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111 |
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112 ngx_quic_set_lost_timer(c); |
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113 |
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114 return NGX_OK; |
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|
115 } |
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116 |
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117 |
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|
118 static ngx_int_t |
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119 ngx_quic_create_datagrams(ngx_connection_t *c) |
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120 { |
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|
121 size_t len, min; |
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122 ssize_t n; |
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|
123 u_char *p; |
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|
124 uint64_t preserved_pnum[NGX_QUIC_SEND_CTX_LAST]; |
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|
125 ngx_uint_t i, pad; |
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|
126 ngx_quic_path_t *path; |
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|
127 ngx_quic_send_ctx_t *ctx; |
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|
128 ngx_quic_congestion_t *cg; |
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|
129 ngx_quic_connection_t *qc; |
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|
130 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE]; |
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131 |
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|
132 qc = ngx_quic_get_connection(c); |
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|
133 cg = &qc->congestion; |
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134 path = qc->socket->path; |
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135 |
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136 while (cg->in_flight < cg->window) { |
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137 |
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138 p = dst; |
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139 |
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140 len = ngx_min(qc->ctp.max_udp_payload_size, |
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|
141 NGX_QUIC_MAX_UDP_PAYLOAD_SIZE); |
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142 |
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143 len = ngx_quic_path_limit(c, path, len); |
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144 |
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|
145 pad = ngx_quic_get_padding_level(c); |
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146 |
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|
147 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) { |
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148 |
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149 ctx = &qc->send_ctx[i]; |
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150 |
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151 preserved_pnum[i] = ctx->pnum; |
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152 |
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153 if (ngx_quic_generate_ack(c, ctx) != NGX_OK) { |
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154 return NGX_ERROR; |
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|
155 } |
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156 |
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157 min = (i == pad && p - dst < NGX_QUIC_MIN_INITIAL_SIZE) |
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158 ? NGX_QUIC_MIN_INITIAL_SIZE - (p - dst) : 0; |
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159 |
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|
160 if (min > len) { |
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|
161 continue; |
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|
162 } |
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163 |
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164 n = ngx_quic_output_packet(c, ctx, p, len, min); |
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165 if (n == NGX_ERROR) { |
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166 return NGX_ERROR; |
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|
167 } |
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|
168 |
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|
169 p += n; |
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|
170 len -= n; |
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|
171 } |
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|
172 |
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|
173 len = p - dst; |
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|
174 if (len == 0) { |
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|
175 break; |
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|
176 } |
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|
177 |
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|
178 n = ngx_quic_send(c, dst, len, path->sockaddr, path->socklen); |
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179 |
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180 if (n == NGX_ERROR) { |
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|
181 return NGX_ERROR; |
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|
182 } |
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183 |
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184 if (n == NGX_AGAIN) { |
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185 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) { |
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186 ngx_quic_revert_send(c, &qc->send_ctx[i], preserved_pnum[i]); |
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|
187 } |
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|
188 |
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|
189 ngx_add_timer(&qc->push, NGX_QUIC_SOCKET_RETRY_DELAY); |
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|
190 break; |
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|
191 } |
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192 |
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|
193 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) { |
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194 ngx_quic_commit_send(c, &qc->send_ctx[i]); |
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195 } |
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196 |
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|
197 path->sent += len; |
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|
198 } |
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|
199 |
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|
200 return NGX_OK; |
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|
201 } |
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202 |
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203 |
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|
204 static void |
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205 ngx_quic_commit_send(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx) |
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206 { |
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|
207 ngx_queue_t *q; |
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|
208 ngx_quic_frame_t *f; |
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|
209 ngx_quic_congestion_t *cg; |
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|
210 ngx_quic_connection_t *qc; |
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211 |
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212 qc = ngx_quic_get_connection(c); |
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213 |
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|
214 cg = &qc->congestion; |
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|
215 |
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|
216 while (!ngx_queue_empty(&ctx->sending)) { |
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217 |
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|
218 q = ngx_queue_head(&ctx->sending); |
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219 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
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220 |
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|
221 ngx_queue_remove(q); |
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222 |
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|
223 if (f->pkt_need_ack && !qc->closing) { |
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|
224 ngx_queue_insert_tail(&ctx->sent, q); |
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225 |
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|
226 cg->in_flight += f->plen; |
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227 |
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228 } else { |
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|
229 ngx_quic_free_frame(c, f); |
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230 } |
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|
231 } |
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|
232 |
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|
233 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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234 "quic congestion send if:%uz", cg->in_flight); |
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235 } |
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236 |
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237 |
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238 static void |
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239 ngx_quic_revert_send(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
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240 uint64_t pnum) |
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241 { |
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242 ngx_queue_t *q; |
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243 |
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244 while (!ngx_queue_empty(&ctx->sending)) { |
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245 |
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246 q = ngx_queue_last(&ctx->sending); |
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247 ngx_queue_remove(q); |
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248 ngx_queue_insert_head(&ctx->frames, q); |
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249 } |
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250 |
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251 ctx->pnum = pnum; |
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252 } |
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253 |
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254 |
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255 #if ((NGX_HAVE_UDP_SEGMENT) && (NGX_HAVE_MSGHDR_MSG_CONTROL)) |
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256 |
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257 static ngx_uint_t |
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258 ngx_quic_allow_segmentation(ngx_connection_t *c) |
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259 { |
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260 size_t bytes, len; |
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261 ngx_queue_t *q; |
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262 ngx_quic_frame_t *f; |
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263 ngx_quic_send_ctx_t *ctx; |
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264 ngx_quic_connection_t *qc; |
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265 |
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266 qc = ngx_quic_get_connection(c); |
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267 |
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268 if (!qc->conf->gso_enabled) { |
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269 return 0; |
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270 } |
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271 |
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272 if (qc->socket->path->limited) { |
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273 /* don't even try to be faster on non-validated paths */ |
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274 return 0; |
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275 } |
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276 |
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277 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_initial); |
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278 if (!ngx_queue_empty(&ctx->frames)) { |
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279 return 0; |
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280 } |
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281 |
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282 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_handshake); |
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283 if (!ngx_queue_empty(&ctx->frames)) { |
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284 return 0; |
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285 } |
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286 |
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287 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_application); |
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288 |
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289 bytes = 0; |
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290 |
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291 len = ngx_min(qc->ctp.max_udp_payload_size, |
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292 NGX_QUIC_MAX_UDP_SEGMENT_BUF); |
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293 |
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294 for (q = ngx_queue_head(&ctx->frames); |
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295 q != ngx_queue_sentinel(&ctx->frames); |
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296 q = ngx_queue_next(q)) |
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297 { |
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298 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
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299 |
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300 bytes += f->len; |
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301 |
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302 if (bytes > len * 3) { |
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303 /* require at least ~3 full packets to batch */ |
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304 return 1; |
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|
305 } |
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|
306 } |
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307 |
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|
308 return 0; |
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|
309 } |
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310 |
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311 |
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312 static ngx_int_t |
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313 ngx_quic_create_segments(ngx_connection_t *c) |
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314 { |
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315 size_t len, segsize; |
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316 ssize_t n; |
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317 u_char *p, *end; |
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318 uint64_t preserved_pnum; |
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319 ngx_uint_t nseg; |
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320 ngx_quic_path_t *path; |
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321 ngx_quic_send_ctx_t *ctx; |
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322 ngx_quic_congestion_t *cg; |
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323 ngx_quic_connection_t *qc; |
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324 static u_char dst[NGX_QUIC_MAX_UDP_SEGMENT_BUF]; |
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325 |
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326 qc = ngx_quic_get_connection(c); |
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327 cg = &qc->congestion; |
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328 path = qc->socket->path; |
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329 |
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330 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_application); |
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331 |
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332 if (ngx_quic_generate_ack(c, ctx) != NGX_OK) { |
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333 return NGX_ERROR; |
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|
334 } |
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335 |
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336 segsize = ngx_min(qc->ctp.max_udp_payload_size, |
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|
337 NGX_QUIC_MAX_UDP_SEGMENT_BUF); |
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338 p = dst; |
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339 end = dst + sizeof(dst); |
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340 |
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|
341 nseg = 0; |
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342 |
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343 preserved_pnum = ctx->pnum; |
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344 |
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|
345 for ( ;; ) { |
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346 |
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347 len = ngx_min(segsize, (size_t) (end - p)); |
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348 |
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|
349 if (len && cg->in_flight < cg->window) { |
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|
350 |
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|
351 n = ngx_quic_output_packet(c, ctx, p, len, len); |
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|
352 if (n == NGX_ERROR) { |
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|
353 return NGX_ERROR; |
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|
354 } |
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|
355 |
8688
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|
356 if (n) { |
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diff
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|
357 p += n; |
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diff
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|
358 nseg++; |
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|
359 } |
8512
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|
360 |
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diff
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|
361 } else { |
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diff
changeset
|
362 n = 0; |
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diff
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|
363 } |
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diff
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|
364 |
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diff
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|
365 if (p == dst) { |
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diff
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|
366 break; |
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diff
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|
367 } |
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diff
changeset
|
368 |
bb5152ed045b
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diff
changeset
|
369 if (n == 0 || nseg == NGX_QUIC_MAX_SEGMENTS) { |
bb5152ed045b
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diff
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|
370 n = ngx_quic_send_segments(c, dst, p - dst, path->sockaddr, |
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parents:
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diff
changeset
|
371 path->socklen, segsize); |
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QUIC: added support for segmentation offloading.
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parents:
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diff
changeset
|
372 if (n == NGX_ERROR) { |
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diff
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|
373 return NGX_ERROR; |
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parents:
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diff
changeset
|
374 } |
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diff
changeset
|
375 |
8547
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diff
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|
376 if (n == NGX_AGAIN) { |
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QUIC: handle EAGAIN properly on UDP sockets.
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|
377 ngx_quic_revert_send(c, ctx, preserved_pnum); |
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|
378 |
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|
379 ngx_add_timer(&qc->push, NGX_QUIC_SOCKET_RETRY_DELAY); |
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|
380 break; |
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parents:
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diff
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|
381 } |
ad046179eb91
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|
382 |
ad046179eb91
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|
383 ngx_quic_commit_send(c, ctx); |
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QUIC: handle EAGAIN properly on UDP sockets.
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diff
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|
384 |
8512
bb5152ed045b
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diff
changeset
|
385 path->sent += n; |
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diff
changeset
|
386 |
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diff
changeset
|
387 p = dst; |
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diff
changeset
|
388 nseg = 0; |
8547
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|
389 preserved_pnum = ctx->pnum; |
8512
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diff
changeset
|
390 } |
bb5152ed045b
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diff
changeset
|
391 } |
8411
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parents:
diff
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|
392 |
bc910a5ec737
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parents:
diff
changeset
|
393 return NGX_OK; |
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parents:
diff
changeset
|
394 } |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
395 |
bc910a5ec737
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
396 |
8512
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diff
changeset
|
397 static ssize_t |
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QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
398 ngx_quic_send_segments(ngx_connection_t *c, u_char *buf, size_t len, |
bb5152ed045b
QUIC: added support for segmentation offloading.
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diff
changeset
|
399 struct sockaddr *sockaddr, socklen_t socklen, size_t segment) |
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QUIC: added support for segmentation offloading.
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parents:
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diff
changeset
|
400 { |
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parents:
8509
diff
changeset
|
401 size_t clen; |
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diff
changeset
|
402 ssize_t n; |
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QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
403 uint16_t *valp; |
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QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
404 struct iovec iov; |
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QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
405 struct msghdr msg; |
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QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
406 struct cmsghdr *cmsg; |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
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diff
changeset
|
407 |
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QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
408 #if defined(NGX_HAVE_ADDRINFO_CMSG) |
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QUIC: added support for segmentation offloading.
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diff
changeset
|
409 char msg_control[CMSG_SPACE(sizeof(uint16_t)) |
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QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
410 + CMSG_SPACE(sizeof(ngx_addrinfo_t))]; |
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QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
411 #else |
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QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
412 char msg_control[CMSG_SPACE(sizeof(uint16_t))]; |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
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diff
changeset
|
413 #endif |
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QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
414 |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
415 ngx_memzero(&msg, sizeof(struct msghdr)); |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
416 ngx_memzero(msg_control, sizeof(msg_control)); |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
417 |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
418 iov.iov_len = len; |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
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diff
changeset
|
419 iov.iov_base = buf; |
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QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
420 |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
421 msg.msg_iov = &iov; |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
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diff
changeset
|
422 msg.msg_iovlen = 1; |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
423 |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
424 msg.msg_name = sockaddr; |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
425 msg.msg_namelen = socklen; |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
426 |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
427 msg.msg_control = msg_control; |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
428 msg.msg_controllen = sizeof(msg_control); |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
429 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
430 cmsg = CMSG_FIRSTHDR(&msg); |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
431 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
432 cmsg->cmsg_level = SOL_UDP; |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
433 cmsg->cmsg_type = UDP_SEGMENT; |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
434 cmsg->cmsg_len = CMSG_LEN(sizeof(uint16_t)); |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
435 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
436 clen = CMSG_SPACE(sizeof(uint16_t)); |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
437 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
438 valp = (void *) CMSG_DATA(cmsg); |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
439 *valp = segment; |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
440 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
441 #if defined(NGX_HAVE_ADDRINFO_CMSG) |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
442 if (c->listening && c->listening->wildcard && c->local_sockaddr) { |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
443 cmsg = CMSG_NXTHDR(&msg, cmsg); |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
444 clen += ngx_set_srcaddr_cmsg(cmsg, c->local_sockaddr); |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
445 } |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
446 #endif |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
447 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
448 msg.msg_controllen = clen; |
bb5152ed045b
QUIC: added support for segmentation offloading.
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parents:
8509
diff
changeset
|
449 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
450 n = ngx_sendmsg(c, &msg, 0); |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
451 if (n < 0) { |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
452 return n; |
8512
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
453 } |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
454 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
455 c->sent += n; |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
456 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
457 return n; |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
458 } |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
459 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
460 #endif |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
461 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
462 |
bb5152ed045b
QUIC: added support for segmentation offloading.
Vladimir Homutov <vl@nginx.com>
parents:
8509
diff
changeset
|
463 |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
464 static ngx_uint_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
465 ngx_quic_get_padding_level(ngx_connection_t *c) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
466 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
467 ngx_queue_t *q; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
468 ngx_quic_frame_t *f; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
469 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
470 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
471 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
472 /* |
8498
4715f3e669f1
QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8423
diff
changeset
|
473 * RFC 9000, 14.1. Initial Datagram Size |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
474 * |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
475 * Similarly, a server MUST expand the payload of all UDP datagrams |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
476 * carrying ack-eliciting Initial packets to at least the smallest |
8498
4715f3e669f1
QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8423
diff
changeset
|
477 * allowed maximum datagram size of 1200 bytes. |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
478 */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
479 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
480 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
481 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_initial); |
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 for (q = ngx_queue_head(&ctx->frames); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
484 q != ngx_queue_sentinel(&ctx->frames); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
485 q = ngx_queue_next(q)) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
486 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
487 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
|
488 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
489 if (f->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
490 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_handshake); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
491 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
492 if (ngx_queue_empty(&ctx->frames)) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
493 return 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
494 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
495 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
496 return 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
497 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
498 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
499 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
500 return NGX_QUIC_SEND_CTX_LAST; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
501 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
502 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
503 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
504 static ssize_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
505 ngx_quic_output_packet(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
8758
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
506 u_char *data, size_t max, size_t min) |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
507 { |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
508 size_t len, pad, min_payload, max_payload; |
8681
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
509 u_char *p; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
510 ssize_t flen; |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
511 ngx_str_t res; |
8681
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
512 ngx_int_t rc; |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
513 ngx_uint_t nframes, expand; |
8681
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
514 ngx_msec_t now; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
515 ngx_queue_t *q; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
516 ngx_quic_frame_t *f; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
517 ngx_quic_header_t pkt; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
518 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE]; |
8411
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 if (ngx_queue_empty(&ctx->frames)) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
521 return 0; |
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 |
8758
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
524 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
525 "quic output %s packet max:%uz min:%uz", |
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
526 ngx_quic_level_name(ctx->level), max, min); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
527 |
8758
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
528 ngx_quic_init_packet(c, ctx, &pkt); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
529 |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
530 min_payload = ngx_quic_payload_size(&pkt, min); |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
531 max_payload = ngx_quic_payload_size(&pkt, max); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
532 |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
533 /* RFC 9001, 5.4.2. Header Protection Sample */ |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
534 pad = 4 - pkt.num_len; |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
535 min_payload = ngx_max(min_payload, pad); |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
536 |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
537 if (min_payload > max_payload) { |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
538 return 0; |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
539 } |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
540 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
541 now = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
542 nframes = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
543 p = src; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
544 len = 0; |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
545 expand = 0; |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
546 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
547 for (q = ngx_queue_head(&ctx->frames); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
548 q != ngx_queue_sentinel(&ctx->frames); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
549 q = ngx_queue_next(q)) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
550 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
551 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
|
552 |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
553 if (!expand && (f->type == NGX_QUIC_FT_PATH_RESPONSE |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
554 || f->type == NGX_QUIC_FT_PATH_CHALLENGE)) |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
555 { |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
556 /* |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
557 * RFC 9000, 8.2.1. Initiating Path Validation |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
558 * |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
559 * An endpoint MUST expand datagrams that contain a |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
560 * PATH_CHALLENGE frame to at least the smallest allowed |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
561 * maximum datagram size of 1200 bytes... |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
562 * |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
563 * (same applies to PATH_RESPONSE frames) |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
564 */ |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
565 |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
566 if (max < 1200) { |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
567 /* expanded packet will not fit */ |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
568 break; |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
569 } |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
570 |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
571 if (min < 1200) { |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
572 min = 1200; |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
573 |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
574 min_payload = ngx_quic_payload_size(&pkt, min); |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
575 } |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
576 |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
577 expand = 1; |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
578 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
579 |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
580 if (len >= max_payload) { |
8411
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 |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
584 if (len + f->len > max_payload) { |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
585 rc = ngx_quic_split_frame(c, f, max_payload - len); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
586 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
587 if (rc == NGX_ERROR) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
588 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
589 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
590 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
591 if (rc == NGX_DECLINED) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
592 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
593 } |
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 if (f->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
597 pkt.need_ack = 1; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
600 ngx_quic_log_frame(c->log, f, 1); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
601 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
602 flen = ngx_quic_create_frame(p, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
603 if (flen == -1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
604 return NGX_ERROR; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
607 len += flen; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
608 p += flen; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
609 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
610 f->pnum = ctx->pnum; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
611 f->first = now; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
612 f->last = now; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
613 f->plen = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
614 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
615 nframes++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
616 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
617 if (f->flush) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
618 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
619 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
620 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
621 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
622 if (nframes == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
623 return 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
624 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
625 |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
626 if (len < min_payload) { |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
627 ngx_memset(p, NGX_QUIC_FT_PADDING, min_payload - len); |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
628 len = min_payload; |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
629 } |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
630 |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
631 pkt.payload.data = src; |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
632 pkt.payload.len = len; |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
633 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
634 res.data = data; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
635 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
636 ngx_log_debug6(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
|
637 "quic packet tx %s bytes:%ui" |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
638 " need_ack:%d number:%L encoded nl:%d trunc:0x%xD", |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
639 ngx_quic_level_name(ctx->level), pkt.payload.len, |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
640 pkt.need_ack, pkt.number, pkt.num_len, pkt.trunc); |
8411
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 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
643 return NGX_ERROR; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
646 ctx->pnum++; |
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 if (pkt.need_ack) { |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
649 q = ngx_queue_head(&ctx->frames); |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
650 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
651 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
652 f->plen = res.len; |
8411
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 while (nframes--) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
656 q = ngx_queue_head(&ctx->frames); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
657 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
|
658 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
659 f->pkt_need_ack = pkt.need_ack; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
660 |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
661 ngx_queue_remove(q); |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
662 ngx_queue_insert_tail(&ctx->sending, q); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
663 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
664 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
665 return res.len; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
668 |
8681
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
669 static void |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
670 ngx_quic_init_packet(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
8758
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
671 ngx_quic_header_t *pkt) |
8681
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
672 { |
8758
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
673 ngx_quic_socket_t *qsock; |
8681
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
674 ngx_quic_connection_t *qc; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
675 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
676 qc = ngx_quic_get_connection(c); |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
677 |
8758
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
678 qsock = qc->socket; |
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
679 |
8681
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
680 ngx_memzero(pkt, sizeof(ngx_quic_header_t)); |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
681 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
682 pkt->flags = NGX_QUIC_PKT_FIXED_BIT; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
683 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
684 if (ctx->level == ssl_encryption_initial) { |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
685 pkt->flags |= NGX_QUIC_PKT_LONG | NGX_QUIC_PKT_INITIAL; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
686 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
687 } else if (ctx->level == ssl_encryption_handshake) { |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
688 pkt->flags |= NGX_QUIC_PKT_LONG | NGX_QUIC_PKT_HANDSHAKE; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
689 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
690 } else { |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
691 if (qc->key_phase) { |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
692 pkt->flags |= NGX_QUIC_PKT_KPHASE; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
693 } |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
694 } |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
695 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
696 pkt->dcid.data = qsock->cid->id; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
697 pkt->dcid.len = qsock->cid->len; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
698 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
699 pkt->scid.data = qsock->sid.id; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
700 pkt->scid.len = qsock->sid.len; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
701 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
702 pkt->version = qc->version; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
703 pkt->log = c->log; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
704 pkt->level = ctx->level; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
705 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
706 pkt->keys = qc->keys; |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
707 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
708 ngx_quic_set_packet_number(pkt, ctx); |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
709 } |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
710 |
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
711 |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
712 static ssize_t |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
713 ngx_quic_send(ngx_connection_t *c, u_char *buf, size_t len, |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
714 struct sockaddr *sockaddr, socklen_t socklen) |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
715 { |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
716 ssize_t n; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
717 struct iovec iov; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
718 struct msghdr msg; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
719 #if defined(NGX_HAVE_ADDRINFO_CMSG) |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
720 struct cmsghdr *cmsg; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
721 char msg_control[CMSG_SPACE(sizeof(ngx_addrinfo_t))]; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
722 #endif |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
723 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
724 ngx_memzero(&msg, sizeof(struct msghdr)); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
725 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
726 iov.iov_len = len; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
727 iov.iov_base = buf; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
728 |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
729 msg.msg_iov = &iov; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
730 msg.msg_iovlen = 1; |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
731 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
732 msg.msg_name = sockaddr; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
733 msg.msg_namelen = socklen; |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
734 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
735 #if defined(NGX_HAVE_ADDRINFO_CMSG) |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
736 if (c->listening && c->listening->wildcard && c->local_sockaddr) { |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
737 |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
738 msg.msg_control = msg_control; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
739 msg.msg_controllen = sizeof(msg_control); |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
740 ngx_memzero(msg_control, sizeof(msg_control)); |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
741 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
742 cmsg = CMSG_FIRSTHDR(&msg); |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
743 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
744 msg.msg_controllen = ngx_set_srcaddr_cmsg(cmsg, c->local_sockaddr); |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
745 } |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
746 #endif |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
747 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
748 n = ngx_sendmsg(c, &msg, 0); |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
749 if (n < 0) { |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
750 return n; |
8411
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 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
753 c->sent += n; |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
754 |
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
755 return n; |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
756 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
757 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
758 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
759 static void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
760 ngx_quic_set_packet_number(ngx_quic_header_t *pkt, ngx_quic_send_ctx_t *ctx) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
761 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
762 uint64_t delta; |
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 delta = ctx->pnum - ctx->largest_ack; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
765 pkt->number = ctx->pnum; |
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 if (delta <= 0x7F) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
768 pkt->num_len = 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
769 pkt->trunc = ctx->pnum & 0xff; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
770 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
771 } else if (delta <= 0x7FFF) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
772 pkt->num_len = 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
773 pkt->flags |= 0x1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
774 pkt->trunc = ctx->pnum & 0xffff; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
775 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
776 } else if (delta <= 0x7FFFFF) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
777 pkt->num_len = 3; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
778 pkt->flags |= 0x2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
779 pkt->trunc = ctx->pnum & 0xffffff; |
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 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
782 pkt->num_len = 4; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
783 pkt->flags |= 0x3; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
784 pkt->trunc = ctx->pnum & 0xffffffff; |
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 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
787 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
788 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
789 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
790 ngx_quic_negotiate_version(ngx_connection_t *c, ngx_quic_header_t *inpkt) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
791 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
792 size_t len; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
793 ngx_quic_header_t pkt; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
794 static u_char buf[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
795 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
796 ngx_log_debug0(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
|
797 "sending version negotiation packet"); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
798 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
799 pkt.log = c->log; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
800 pkt.flags = NGX_QUIC_PKT_LONG | NGX_QUIC_PKT_FIXED_BIT; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
801 pkt.dcid = inpkt->scid; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
802 pkt.scid = inpkt->dcid; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
803 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
804 len = ngx_quic_create_version_negotiation(&pkt, buf); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
805 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
806 #ifdef NGX_QUIC_DEBUG_PACKETS |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
807 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
|
808 "quic vnego packet to send len:%uz %*xs", len, len, buf); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
809 #endif |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
810 |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
811 (void) ngx_quic_send(c, buf, len, c->sockaddr, c->socklen); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
812 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
813 return NGX_ERROR; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
817 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
818 ngx_quic_send_stateless_reset(ngx_connection_t *c, ngx_quic_conf_t *conf, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
819 ngx_quic_header_t *pkt) |
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 u_char *token; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
822 size_t len, max; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
823 uint16_t rndbytes; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
824 u_char buf[NGX_QUIC_MAX_SR_PACKET]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
825 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
826 ngx_log_debug0(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
|
827 "quic handle stateless reset output"); |
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 if (pkt->len <= NGX_QUIC_MIN_PKT_LEN) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
830 return NGX_DECLINED; |
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 if (pkt->len <= NGX_QUIC_MIN_SR_PACKET) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
834 len = pkt->len - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
835 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
836 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
837 max = ngx_min(NGX_QUIC_MAX_SR_PACKET, pkt->len * 3); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
838 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
839 if (RAND_bytes((u_char *) &rndbytes, sizeof(rndbytes)) != 1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
840 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
841 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
842 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
843 len = (rndbytes % (max - NGX_QUIC_MIN_SR_PACKET + 1)) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
844 + NGX_QUIC_MIN_SR_PACKET; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
847 if (RAND_bytes(buf, len - NGX_QUIC_SR_TOKEN_LEN) != 1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
848 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
849 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
850 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
851 buf[0] &= ~NGX_QUIC_PKT_LONG; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
852 buf[0] |= NGX_QUIC_PKT_FIXED_BIT; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
853 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
854 token = &buf[len - NGX_QUIC_SR_TOKEN_LEN]; |
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_quic_new_sr_token(c, &pkt->dcid, conf->sr_token_key, token) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
857 != NGX_OK) |
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 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
860 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
861 |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
862 (void) ngx_quic_send(c, buf, len, c->sockaddr, c->socklen); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
863 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
864 return NGX_DECLINED; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
865 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
866 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
867 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
868 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
869 ngx_quic_send_cc(ngx_connection_t *c) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
870 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
871 ngx_quic_frame_t *frame; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
872 ngx_quic_connection_t *qc; |
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 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
875 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
876 if (qc->draining) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
877 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
878 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
879 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
880 if (qc->closing |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
881 && ngx_current_msec - qc->last_cc < NGX_QUIC_CC_MIN_INTERVAL) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
882 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
883 /* dot not send CC too often */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
884 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
885 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
886 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
887 frame = ngx_quic_alloc_frame(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
888 if (frame == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
889 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
890 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
891 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
892 frame->level = qc->error_level; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
893 frame->type = qc->error_app ? NGX_QUIC_FT_CONNECTION_CLOSE_APP |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
894 : NGX_QUIC_FT_CONNECTION_CLOSE; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
895 frame->u.close.error_code = qc->error; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
896 frame->u.close.frame_type = qc->error_ftype; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
897 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
898 if (qc->error_reason) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
899 frame->u.close.reason.len = ngx_strlen(qc->error_reason); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
900 frame->u.close.reason.data = (u_char *) qc->error_reason; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
901 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
902 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
903 ngx_quic_queue_frame(qc, frame); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
904 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
905 qc->last_cc = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
906 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
907 return ngx_quic_output(c); |
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_send_early_cc(ngx_connection_t *c, ngx_quic_header_t *inpkt, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
913 ngx_uint_t err, const char *reason) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
914 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
915 ssize_t len; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
916 ngx_str_t res; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
917 ngx_quic_frame_t frame; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
918 ngx_quic_header_t pkt; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
919 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
920 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
921 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE]; |
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 ngx_memzero(&frame, sizeof(ngx_quic_frame_t)); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
924 ngx_memzero(&pkt, sizeof(ngx_quic_header_t)); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
925 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
926 frame.level = inpkt->level; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
927 frame.type = NGX_QUIC_FT_CONNECTION_CLOSE; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
928 frame.u.close.error_code = err; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
929 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
930 frame.u.close.reason.data = (u_char *) reason; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
931 frame.u.close.reason.len = ngx_strlen(reason); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
932 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
933 len = ngx_quic_create_frame(NULL, &frame); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
934 if (len > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
935 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
936 } |
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 ngx_quic_log_frame(c->log, &frame, 1); |
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 len = ngx_quic_create_frame(src, &frame); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
941 if (len == -1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
942 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
943 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
944 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
945 pkt.keys = ngx_quic_keys_new(c->pool); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
946 if (pkt.keys == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
947 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
948 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
949 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
950 if (ngx_quic_keys_set_initial_secret(c->pool, pkt.keys, &inpkt->dcid, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
951 inpkt->version) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
952 != NGX_OK) |
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 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
955 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
956 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
957 pkt.flags = NGX_QUIC_PKT_FIXED_BIT | NGX_QUIC_PKT_LONG |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
958 | NGX_QUIC_PKT_INITIAL; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
959 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
960 pkt.num_len = 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
961 /* |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
962 * pkt.num = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
963 * pkt.trunc = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
964 */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
965 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
966 pkt.version = inpkt->version; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
967 pkt.log = c->log; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
968 pkt.level = inpkt->level; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
969 pkt.dcid = inpkt->scid; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
970 pkt.scid = inpkt->dcid; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
971 pkt.payload.data = src; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
972 pkt.payload.len = len; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
973 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
974 res.data = dst; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
975 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
976 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
977 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
978 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
979 |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
980 if (ngx_quic_send(c, res.data, res.len, c->sockaddr, c->socklen) < 0) { |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
981 return NGX_ERROR; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
984 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
985 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
986 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
987 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
988 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
989 ngx_quic_send_retry(ngx_connection_t *c, ngx_quic_conf_t *conf, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
990 ngx_quic_header_t *inpkt) |
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 time_t expires; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
993 ssize_t len; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
994 ngx_str_t res, token; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
995 ngx_quic_header_t pkt; |
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 u_char buf[NGX_QUIC_RETRY_BUFFER_SIZE]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
998 u_char dcid[NGX_QUIC_SERVER_CID_LEN]; |
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 expires = ngx_time() + NGX_QUIC_RETRY_TOKEN_LIFETIME; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1001 |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1002 if (ngx_quic_new_token(c, c->sockaddr, c->socklen, conf->av_token_key, |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1003 &token, &inpkt->dcid, expires, 1) |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1004 != NGX_OK) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1005 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1006 return NGX_ERROR; |
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 ngx_memzero(&pkt, sizeof(ngx_quic_header_t)); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1010 pkt.flags = NGX_QUIC_PKT_FIXED_BIT | NGX_QUIC_PKT_LONG | NGX_QUIC_PKT_RETRY; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1011 pkt.version = inpkt->version; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1012 pkt.log = c->log; |
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 pkt.odcid = inpkt->dcid; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1015 pkt.dcid = inpkt->scid; |
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 /* TODO: generate routable dcid */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1018 if (RAND_bytes(dcid, NGX_QUIC_SERVER_CID_LEN) != 1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1019 return NGX_ERROR; |
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 pkt.scid.len = NGX_QUIC_SERVER_CID_LEN; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1023 pkt.scid.data = dcid; |
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 pkt.token = token; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1026 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1027 res.data = buf; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1028 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1029 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1030 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1031 } |
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 #ifdef NGX_QUIC_DEBUG_PACKETS |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1034 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
|
1035 "quic packet to send len:%uz %xV", res.len, &res); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1036 #endif |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1037 |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1038 len = ngx_quic_send(c, res.data, res.len, c->sockaddr, c->socklen); |
8547
ad046179eb91
QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents:
8540
diff
changeset
|
1039 if (len < 0) { |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1040 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1041 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1042 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1043 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
|
1044 "quic retry packet sent to %xV", &pkt.dcid); |
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 /* |
8498
4715f3e669f1
QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8423
diff
changeset
|
1047 * RFC 9000, 17.2.5.1. Sending a Retry Packet |
4715f3e669f1
QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8423
diff
changeset
|
1048 * |
4715f3e669f1
QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8423
diff
changeset
|
1049 * A server MUST NOT send more than one Retry |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1050 * packet in response to a single UDP datagram. |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1051 * NGX_DONE will stop quic_input() from processing further |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1052 */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1053 return NGX_DONE; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1057 ngx_int_t |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1058 ngx_quic_send_new_token(ngx_connection_t *c, ngx_quic_path_t *path) |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1059 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1060 time_t expires; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1061 ngx_str_t token; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1062 ngx_quic_frame_t *frame; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1063 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1064 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1065 qc = ngx_quic_get_connection(c); |
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 expires = ngx_time() + NGX_QUIC_NEW_TOKEN_LIFETIME; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1068 |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1069 if (ngx_quic_new_token(c, path->sockaddr, path->socklen, |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1070 qc->conf->av_token_key, &token, NULL, expires, 0) |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1071 != NGX_OK) |
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 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1074 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1075 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1076 frame = ngx_quic_alloc_frame(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1077 if (frame == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1078 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1079 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1080 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1081 frame->level = ssl_encryption_application; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1082 frame->type = NGX_QUIC_FT_NEW_TOKEN; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1083 frame->u.token.length = token.len; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1084 frame->u.token.data = token.data; |
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 ngx_quic_queue_frame(qc, frame); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1087 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1088 return NGX_OK; |
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 ngx_int_t |
bc910a5ec737
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1093 ngx_quic_send_ack(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx) |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1094 { |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1095 size_t len, left; |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1096 uint64_t ack_delay; |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1097 ngx_buf_t *b; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1098 ngx_uint_t i; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1099 ngx_chain_t *cl, **ll; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1100 ngx_quic_frame_t *frame; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1101 ngx_quic_connection_t *qc; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1102 |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1103 qc = ngx_quic_get_connection(c); |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1104 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1105 ack_delay = ngx_current_msec - ctx->largest_received; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1106 ack_delay *= 1000; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1107 ack_delay >>= qc->tp.ack_delay_exponent; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1108 |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1109 frame = ngx_quic_alloc_frame(c); |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1110 if (frame == NULL) { |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1111 return NGX_ERROR; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1112 } |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1113 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1114 ll = &frame->data; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1115 b = NULL; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1116 |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1117 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
|
1118 len = ngx_quic_create_ack_range(NULL, ctx->ranges[i].gap, |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1119 ctx->ranges[i].range); |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1120 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1121 left = b ? b->end - b->last : 0; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1122 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1123 if (left < len) { |
8761
19e063e955bf
QUIC: renamed buffer-related functions.
Roman Arutyunyan <arut@nginx.com>
parents:
8758
diff
changeset
|
1124 cl = ngx_quic_alloc_chain(c); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1125 if (cl == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1126 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1127 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1128 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1129 *ll = cl; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1130 ll = &cl->next; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1131 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1132 b = cl->buf; |
bc910a5ec737
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1133 left = b->end - b->last; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1134 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1135 if (left < len) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1136 return NGX_ERROR; |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1137 } |
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 |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1140 b->last += ngx_quic_create_ack_range(b->last, ctx->ranges[i].gap, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1141 ctx->ranges[i].range); |
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 frame->u.ack.ranges_length += len; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1144 } |
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 *ll = NULL; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1147 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1148 frame->level = ctx->level; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1149 frame->type = NGX_QUIC_FT_ACK; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1150 frame->u.ack.largest = ctx->largest_range; |
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QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1151 frame->u.ack.delay = ack_delay; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1152 frame->u.ack.range_count = ctx->nranges; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1153 frame->u.ack.first_range = ctx->first_range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1154 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1155 ngx_quic_queue_frame(qc, frame); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1156 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1157 return NGX_OK; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1160 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1161 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1162 ngx_quic_send_ack_range(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
|
1163 uint64_t smallest, uint64_t largest) |
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 ngx_quic_frame_t *frame; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1166 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1167 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1168 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1169 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1170 frame = ngx_quic_alloc_frame(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1171 if (frame == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1172 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1173 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1174 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1175 frame->level = ctx->level; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1176 frame->type = NGX_QUIC_FT_ACK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1177 frame->u.ack.largest = largest; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1178 frame->u.ack.delay = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1179 frame->u.ack.range_count = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1180 frame->u.ack.first_range = largest - smallest; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1181 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1182 ngx_quic_queue_frame(qc, frame); |
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 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1185 } |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1186 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1187 |
8721
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1188 ngx_int_t |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1189 ngx_quic_frame_sendto(ngx_connection_t *c, ngx_quic_frame_t *frame, |
8721
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1190 size_t min, ngx_quic_path_t *path) |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1191 { |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1192 size_t min_payload, pad; |
8721
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1193 ssize_t len, sent; |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1194 ngx_str_t res; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1195 ngx_quic_header_t pkt; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1196 ngx_quic_send_ctx_t *ctx; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1197 ngx_quic_connection_t *qc; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1198 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1199 static u_char src[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE]; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1200 static u_char dst[NGX_QUIC_MAX_UDP_PAYLOAD_SIZE]; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1201 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1202 qc = ngx_quic_get_connection(c); |
8681
d8ac4d3c24ac
QUIC: added function to initialize packet.
Vladimir Homutov <vl@nginx.com>
parents:
8680
diff
changeset
|
1203 ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_application); |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1204 |
8758
e72db9162180
QUIC: got rid of excessive "qsock" argument in ngx_quic_output.c.
Vladimir Homutov <vl@nginx.com>
parents:
8730
diff
changeset
|
1205 ngx_quic_init_packet(c, ctx, &pkt); |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1206 |
8730
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1207 min = ngx_quic_path_limit(c, path, min); |
8721
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1208 |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1209 min_payload = min ? ngx_quic_payload_size(&pkt, min) : 0; |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1210 |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1211 pad = 4 - pkt.num_len; |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1212 min_payload = ngx_max(min_payload, pad); |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1213 |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1214 len = ngx_quic_create_frame(NULL, frame); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1215 if (len > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE) { |
8721
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1216 return NGX_ERROR; |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1217 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1218 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1219 ngx_quic_log_frame(c->log, frame, 1); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1220 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1221 len = ngx_quic_create_frame(src, frame); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1222 if (len == -1) { |
8721
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1223 return NGX_ERROR; |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1224 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1225 |
8683
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1226 if (len < (ssize_t) min_payload) { |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1227 ngx_memset(src + len, NGX_QUIC_FT_PADDING, min_payload - len); |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1228 len = min_payload; |
de7b9af30fc6
QUIC: refactored packet creation.
Vladimir Homutov <vl@nginx.com>
parents:
8681
diff
changeset
|
1229 } |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1230 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1231 pkt.payload.data = src; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1232 pkt.payload.len = len; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1233 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1234 res.data = dst; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1235 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1236 if (ngx_quic_encrypt(&pkt, &res) != NGX_OK) { |
8721
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1237 return NGX_ERROR; |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1238 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1239 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1240 ctx->pnum++; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1241 |
8721
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1242 sent = ngx_quic_send(c, res.data, res.len, path->sockaddr, path->socklen); |
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1243 if (sent < 0) { |
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1244 return NGX_ERROR; |
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1245 } |
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1246 |
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1247 path->sent += sent; |
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1248 |
501f28679d56
QUIC: refactored ngx_quic_frame_sendto() function.
Vladimir Homutov <vl@nginx.com>
parents:
8705
diff
changeset
|
1249 return NGX_OK; |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8411
diff
changeset
|
1250 } |
8730
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1251 |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1252 |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1253 static size_t |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1254 ngx_quic_path_limit(ngx_connection_t *c, ngx_quic_path_t *path, size_t size) |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1255 { |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1256 off_t max; |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1257 |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1258 if (path->limited) { |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1259 max = path->received * 3; |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1260 max = (path->sent >= max) ? 0 : max - path->sent; |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1261 |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1262 if ((off_t) size > max) { |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1263 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1264 "quic path limit %uz - %O", size, max); |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1265 return max; |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1266 } |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1267 } |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1268 |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1269 return size; |
0433e69f5425
QUIC: added path limiting function ngx_quic_path_limit().
Roman Arutyunyan <arut@nginx.com>
parents:
8729
diff
changeset
|
1270 } |