Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3_streams.c @ 8497:0596fe1aee16 quic
HTTP/3: server pushes.
New directives are added:
- http3_max_concurrent_pushes
- http3_push
- http3_push_preload
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Thu, 23 Jul 2020 13:41:24 +0300 |
parents | 455a8536eaa7 |
children | 279ad36f2f4b |
rev | line source |
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8215 | 1 |
2 /* | |
3 * Copyright (C) Roman Arutyunyan | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_http.h> | |
11 | |
12 | |
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13 typedef ngx_int_t (*ngx_http_v3_handler_pt)(ngx_connection_t *c, void *data, |
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14 u_char ch); |
8215 | 15 |
16 | |
17 typedef struct { | |
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18 ngx_http_v3_handler_pt handler; |
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19 void *data; |
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20 ngx_int_t index; |
8215 | 21 } ngx_http_v3_uni_stream_t; |
22 | |
23 | |
8497 | 24 typedef struct { |
25 ngx_queue_t queue; | |
26 uint64_t id; | |
27 ngx_connection_t *connection; | |
28 ngx_uint_t *npushing; | |
29 } ngx_http_v3_push_t; | |
30 | |
31 | |
8215 | 32 static void ngx_http_v3_close_uni_stream(ngx_connection_t *c); |
33 static void ngx_http_v3_read_uni_stream_type(ngx_event_t *rev); | |
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34 static void ngx_http_v3_uni_read_handler(ngx_event_t *rev); |
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35 static void ngx_http_v3_dummy_write_handler(ngx_event_t *wev); |
8497 | 36 static void ngx_http_v3_push_cleanup(void *data); |
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37 static ngx_connection_t *ngx_http_v3_get_uni_stream(ngx_connection_t *c, |
8215 | 38 ngx_uint_t type); |
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39 static ngx_int_t ngx_http_v3_send_settings(ngx_connection_t *c); |
8215 | 40 |
41 | |
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42 ngx_int_t |
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43 ngx_http_v3_init_connection(ngx_connection_t *c) |
8215 | 44 { |
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45 ngx_http_connection_t *hc; |
8215 | 46 ngx_http_v3_uni_stream_t *us; |
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47 ngx_http_v3_connection_t *h3c; |
8215 | 48 |
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49 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 init connection"); |
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50 |
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51 hc = c->data; |
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52 |
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53 if (c->qs == NULL) { |
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54 h3c = ngx_pcalloc(c->pool, sizeof(ngx_http_v3_connection_t)); |
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55 if (h3c == NULL) { |
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56 return NGX_ERROR; |
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57 } |
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58 |
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59 h3c->hc = *hc; |
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60 |
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61 ngx_queue_init(&h3c->blocked); |
8497 | 62 ngx_queue_init(&h3c->pushing); |
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63 |
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64 c->data = h3c; |
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65 return NGX_OK; |
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66 } |
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67 |
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68 if (ngx_http_v3_send_settings(c) == NGX_ERROR) { |
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69 return NGX_ERROR; |
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70 } |
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71 |
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72 if ((c->qs->id & NGX_QUIC_STREAM_UNIDIRECTIONAL) == 0) { |
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73 return NGX_OK; |
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74 } |
8215 | 75 |
76 us = ngx_pcalloc(c->pool, sizeof(ngx_http_v3_uni_stream_t)); | |
77 if (us == NULL) { | |
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78 ngx_http_v3_finalize_connection(c, NGX_HTTP_V3_ERR_INTERNAL_ERROR, |
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79 NULL); |
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80 return NGX_ERROR; |
8215 | 81 } |
82 | |
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83 us->index = -1; |
8215 | 84 |
85 c->data = us; | |
86 | |
87 c->read->handler = ngx_http_v3_read_uni_stream_type; | |
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88 c->write->handler = ngx_http_v3_dummy_write_handler; |
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89 |
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90 ngx_http_v3_read_uni_stream_type(c->read); |
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91 |
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92 return NGX_DONE; |
8215 | 93 } |
94 | |
95 | |
96 static void | |
97 ngx_http_v3_close_uni_stream(ngx_connection_t *c) | |
98 { | |
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99 ngx_pool_t *pool; |
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100 ngx_http_v3_connection_t *h3c; |
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101 ngx_http_v3_uni_stream_t *us; |
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102 |
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103 us = c->data; |
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104 h3c = c->qs->parent->data; |
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105 |
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106 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 close stream"); |
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107 |
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108 if (us->index >= 0) { |
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109 h3c->known_streams[us->index] = NULL; |
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110 } |
8215 | 111 |
112 c->destroyed = 1; | |
113 | |
114 pool = c->pool; | |
115 | |
116 ngx_close_connection(c); | |
117 | |
118 ngx_destroy_pool(pool); | |
119 } | |
120 | |
121 | |
122 static void | |
123 ngx_http_v3_read_uni_stream_type(ngx_event_t *rev) | |
124 { | |
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125 u_char ch; |
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126 ssize_t n; |
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127 ngx_int_t index, rc; |
8215 | 128 ngx_connection_t *c; |
129 ngx_http_v3_connection_t *h3c; | |
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130 ngx_http_v3_uni_stream_t *us; |
8215 | 131 |
132 c = rev->data; | |
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133 us = c->data; |
8215 | 134 h3c = c->qs->parent->data; |
135 | |
136 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 read stream type"); | |
137 | |
138 while (rev->ready) { | |
139 | |
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140 n = c->recv(c, &ch, 1); |
8215 | 141 |
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142 if (n == NGX_AGAIN) { |
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143 break; |
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144 } |
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145 |
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146 if (n == 0) { |
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147 rc = NGX_HTTP_V3_ERR_GENERAL_PROTOCOL_ERROR; |
8215 | 148 goto failed; |
149 } | |
150 | |
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151 if (n != 1) { |
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152 rc = NGX_HTTP_V3_ERR_INTERNAL_ERROR; |
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153 goto failed; |
8215 | 154 } |
155 | |
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156 switch (ch) { |
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157 |
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158 case NGX_HTTP_V3_STREAM_ENCODER: |
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159 |
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160 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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161 "http3 encoder stream"); |
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162 |
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163 index = NGX_HTTP_V3_STREAM_CLIENT_ENCODER; |
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164 us->handler = ngx_http_v3_parse_encoder; |
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165 n = sizeof(ngx_http_v3_parse_encoder_t); |
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166 |
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167 break; |
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168 |
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169 case NGX_HTTP_V3_STREAM_DECODER: |
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170 |
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171 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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172 "http3 decoder stream"); |
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173 |
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174 index = NGX_HTTP_V3_STREAM_CLIENT_DECODER; |
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175 us->handler = ngx_http_v3_parse_decoder; |
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176 n = sizeof(ngx_http_v3_parse_decoder_t); |
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177 |
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178 break; |
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179 |
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180 case NGX_HTTP_V3_STREAM_CONTROL: |
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diff
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|
181 |
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|
182 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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diff
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|
183 "http3 control stream"); |
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diff
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|
184 |
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|
185 index = NGX_HTTP_V3_STREAM_CLIENT_CONTROL; |
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diff
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|
186 us->handler = ngx_http_v3_parse_control; |
8226
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diff
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|
187 n = sizeof(ngx_http_v3_parse_control_t); |
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diff
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|
188 |
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|
189 break; |
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diff
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|
190 |
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diff
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|
191 default: |
8215 | 192 |
193 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
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diff
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|
194 "http3 stream 0x%02xi", (ngx_int_t) ch); |
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|
195 index = -1; |
8226
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|
196 n = 0; |
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|
197 } |
8215 | 198 |
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|
199 if (index >= 0) { |
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diff
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|
200 if (h3c->known_streams[index]) { |
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|
201 ngx_log_error(NGX_LOG_INFO, c->log, 0, "stream exists"); |
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diff
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|
202 rc = NGX_HTTP_V3_ERR_STREAM_CREATION_ERROR; |
8283
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|
203 goto failed; |
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|
204 } |
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|
205 |
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|
206 us->index = index; |
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|
207 h3c->known_streams[index] = c; |
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|
208 } |
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|
209 |
8226
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|
210 if (n) { |
8283
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|
211 us->data = ngx_pcalloc(c->pool, n); |
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|
212 if (us->data == NULL) { |
8460
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|
213 rc = NGX_HTTP_V3_ERR_INTERNAL_ERROR; |
8226
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|
214 goto failed; |
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diff
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|
215 } |
8215 | 216 } |
217 | |
8226
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diff
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|
218 rev->handler = ngx_http_v3_uni_read_handler; |
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diff
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|
219 ngx_http_v3_uni_read_handler(rev); |
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|
220 return; |
8215 | 221 } |
222 | |
223 if (ngx_handle_read_event(rev, 0) != NGX_OK) { | |
8460
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|
224 rc = NGX_HTTP_V3_ERR_INTERNAL_ERROR; |
8215 | 225 goto failed; |
226 } | |
227 | |
228 return; | |
229 | |
230 failed: | |
231 | |
8460
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232 ngx_http_v3_finalize_connection(c, rc, "could not read stream type"); |
8215 | 233 ngx_http_v3_close_uni_stream(c); |
234 } | |
235 | |
236 | |
237 static void | |
8226
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|
238 ngx_http_v3_uni_read_handler(ngx_event_t *rev) |
8215 | 239 { |
8226
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240 u_char buf[128]; |
8215 | 241 ssize_t n; |
8226
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|
242 ngx_int_t rc, i; |
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|
243 ngx_connection_t *c; |
8283
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244 ngx_http_v3_uni_stream_t *us; |
8215 | 245 |
246 c = rev->data; | |
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|
247 us = c->data; |
8215 | 248 |
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249 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 read handler"); |
8215 | 250 |
251 while (rev->ready) { | |
252 | |
8226
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253 n = c->recv(c, buf, sizeof(buf)); |
8215 | 254 |
8460
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|
255 if (n == NGX_ERROR) { |
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diff
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256 rc = NGX_HTTP_V3_ERR_INTERNAL_ERROR; |
8215 | 257 goto failed; |
258 } | |
259 | |
8460
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260 if (n == 0) { |
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|
261 if (us->index >= 0) { |
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|
262 rc = NGX_HTTP_V3_ERR_CLOSED_CRITICAL_STREAM; |
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diff
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|
263 goto failed; |
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Roman Arutyunyan <arut@nginx.com>
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diff
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|
264 } |
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265 |
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266 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 read eof"); |
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267 ngx_http_v3_close_uni_stream(c); |
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|
268 return; |
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|
269 } |
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|
270 |
8226
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271 if (n == NGX_AGAIN) { |
8215 | 272 break; |
273 } | |
274 | |
8283
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275 if (us->handler == NULL) { |
8226
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|
276 continue; |
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|
277 } |
8215 | 278 |
8226
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279 for (i = 0; i < n; i++) { |
8215 | 280 |
8283
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|
281 rc = us->handler(c, us->data, buf[i]); |
8215 | 282 |
8460
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|
283 if (rc == NGX_DONE) { |
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284 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
72f9ff4e0a88
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|
285 "http3 read done"); |
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|
286 ngx_http_v3_close_uni_stream(c); |
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diff
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|
287 return; |
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|
288 } |
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|
289 |
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|
290 if (rc > 0) { |
8215 | 291 goto failed; |
292 } | |
293 | |
8460
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294 if (rc != NGX_AGAIN) { |
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295 rc = NGX_HTTP_V3_ERR_GENERAL_PROTOCOL_ERROR; |
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Roman Arutyunyan <arut@nginx.com>
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|
296 goto failed; |
8215 | 297 } |
298 } | |
299 } | |
300 | |
301 if (ngx_handle_read_event(rev, 0) != NGX_OK) { | |
8460
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Roman Arutyunyan <arut@nginx.com>
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|
302 rc = NGX_HTTP_V3_ERR_INTERNAL_ERROR; |
8215 | 303 goto failed; |
304 } | |
305 | |
306 return; | |
307 | |
308 failed: | |
309 | |
8460
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HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
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|
310 ngx_http_v3_finalize_connection(c, rc, "stream error"); |
8215 | 311 ngx_http_v3_close_uni_stream(c); |
312 } | |
313 | |
314 | |
8281
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When closing a QUIC connection, wait for all streams to finish.
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diff
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|
315 static void |
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When closing a QUIC connection, wait for all streams to finish.
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|
316 ngx_http_v3_dummy_write_handler(ngx_event_t *wev) |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
Roman Arutyunyan <arut@nginx.com>
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diff
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|
317 { |
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When closing a QUIC connection, wait for all streams to finish.
Roman Arutyunyan <arut@nginx.com>
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|
318 ngx_connection_t *c; |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
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diff
changeset
|
319 |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
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diff
changeset
|
320 c = wev->data; |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
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8228
diff
changeset
|
321 |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
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diff
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|
322 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 dummy write handler"); |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
323 |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
Roman Arutyunyan <arut@nginx.com>
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|
324 if (ngx_handle_write_event(wev, 0) != NGX_OK) { |
8460
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325 ngx_http_v3_finalize_connection(c, NGX_HTTP_V3_ERR_INTERNAL_ERROR, |
72f9ff4e0a88
HTTP/3: close QUIC connection with HTTP/QPACK errors when needed.
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diff
changeset
|
326 NULL); |
8281
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When closing a QUIC connection, wait for all streams to finish.
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|
327 ngx_http_v3_close_uni_stream(c); |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
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diff
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|
328 } |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
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diff
changeset
|
329 } |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
Roman Arutyunyan <arut@nginx.com>
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diff
changeset
|
330 |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
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changeset
|
331 |
8215 | 332 /* XXX async & buffered stream writes */ |
333 | |
8497 | 334 ngx_connection_t * |
335 ngx_http_v3_create_push_stream(ngx_connection_t *c, uint64_t push_id) | |
336 { | |
337 u_char *p, buf[NGX_HTTP_V3_VARLEN_INT_LEN * 2]; | |
338 size_t n; | |
339 ngx_connection_t *sc; | |
340 ngx_pool_cleanup_t *cln; | |
341 ngx_http_v3_push_t *push; | |
342 ngx_http_v3_connection_t *h3c; | |
343 | |
344 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
345 "http3 create push stream id:%uL", push_id); | |
346 | |
347 sc = ngx_quic_open_stream(c, 0); | |
348 if (sc == NULL) { | |
349 return NULL; | |
350 } | |
351 | |
352 p = buf; | |
353 p = (u_char *) ngx_http_v3_encode_varlen_int(p, NGX_HTTP_V3_STREAM_PUSH); | |
354 p = (u_char *) ngx_http_v3_encode_varlen_int(p, push_id); | |
355 n = p - buf; | |
356 | |
357 if (sc->send(sc, buf, n) != (ssize_t) n) { | |
358 goto failed; | |
359 } | |
360 | |
361 cln = ngx_pool_cleanup_add(sc->pool, sizeof(ngx_http_v3_push_t)); | |
362 if (cln == NULL) { | |
363 goto failed; | |
364 } | |
365 | |
366 h3c = c->qs->parent->data; | |
367 h3c->npushing++; | |
368 | |
369 cln->handler = ngx_http_v3_push_cleanup; | |
370 | |
371 push = cln->data; | |
372 push->id = push_id; | |
373 push->connection = sc; | |
374 push->npushing = &h3c->npushing; | |
375 | |
376 ngx_queue_insert_tail(&h3c->pushing, &push->queue); | |
377 | |
378 return sc; | |
379 | |
380 failed: | |
381 | |
382 ngx_http_v3_close_uni_stream(sc); | |
383 | |
384 return NULL; | |
385 } | |
386 | |
387 | |
388 static void | |
389 ngx_http_v3_push_cleanup(void *data) | |
390 { | |
391 ngx_http_v3_push_t *push = data; | |
392 | |
393 ngx_queue_remove(&push->queue); | |
394 (*push->npushing)--; | |
395 } | |
396 | |
397 | |
8215 | 398 static ngx_connection_t * |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
399 ngx_http_v3_get_uni_stream(ngx_connection_t *c, ngx_uint_t type) |
8215 | 400 { |
401 u_char buf[NGX_HTTP_V3_VARLEN_INT_LEN]; | |
402 size_t n; | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
403 ngx_int_t index; |
8215 | 404 ngx_connection_t *sc; |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
405 ngx_http_v3_connection_t *h3c; |
8215 | 406 ngx_http_v3_uni_stream_t *us; |
407 | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
408 switch (type) { |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
409 case NGX_HTTP_V3_STREAM_ENCODER: |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
410 index = NGX_HTTP_V3_STREAM_SERVER_ENCODER; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
411 break; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
412 case NGX_HTTP_V3_STREAM_DECODER: |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
413 index = NGX_HTTP_V3_STREAM_SERVER_DECODER; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
414 break; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
415 case NGX_HTTP_V3_STREAM_CONTROL: |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
416 index = NGX_HTTP_V3_STREAM_SERVER_CONTROL; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
417 break; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
418 default: |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
419 index = -1; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
420 } |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
421 |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
422 h3c = c->qs->parent->data; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
423 |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
424 if (index >= 0) { |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
425 if (h3c->known_streams[index]) { |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
426 return h3c->known_streams[index]; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
427 } |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
428 } |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
429 |
8495
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
430 sc = ngx_quic_open_stream(c, 0); |
8215 | 431 if (sc == NULL) { |
432 return NULL; | |
433 } | |
434 | |
435 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
436 "http3 create uni stream, type:%ui", type); | |
437 | |
438 us = ngx_pcalloc(sc->pool, sizeof(ngx_http_v3_uni_stream_t)); | |
439 if (us == NULL) { | |
440 goto failed; | |
441 } | |
442 | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
443 us->index = index; |
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
444 |
8215 | 445 sc->data = us; |
446 | |
8281
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
Roman Arutyunyan <arut@nginx.com>
parents:
8228
diff
changeset
|
447 sc->read->handler = ngx_http_v3_uni_read_handler; |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
Roman Arutyunyan <arut@nginx.com>
parents:
8228
diff
changeset
|
448 sc->write->handler = ngx_http_v3_dummy_write_handler; |
618a65de08b3
When closing a QUIC connection, wait for all streams to finish.
Roman Arutyunyan <arut@nginx.com>
parents:
8228
diff
changeset
|
449 |
8403
c101438c69a4
HTTP/3: prevent array access by negative index for unknown streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8362
diff
changeset
|
450 if (index >= 0) { |
c101438c69a4
HTTP/3: prevent array access by negative index for unknown streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8362
diff
changeset
|
451 h3c->known_streams[index] = sc; |
c101438c69a4
HTTP/3: prevent array access by negative index for unknown streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8362
diff
changeset
|
452 } |
8215 | 453 |
454 n = (u_char *) ngx_http_v3_encode_varlen_int(buf, type) - buf; | |
455 | |
456 if (sc->send(sc, buf, n) != (ssize_t) n) { | |
457 goto failed; | |
458 } | |
459 | |
460 return sc; | |
461 | |
462 failed: | |
463 | |
464 ngx_http_v3_close_uni_stream(sc); | |
465 | |
466 return NULL; | |
467 } | |
468 | |
469 | |
8481
0d2b2664b41c
QUIC: added "quic" listen parameter.
Roman Arutyunyan <arut@nginx.com>
parents:
8460
diff
changeset
|
470 static ngx_int_t |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
471 ngx_http_v3_send_settings(ngx_connection_t *c) |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
472 { |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
473 u_char *p, buf[NGX_HTTP_V3_VARLEN_INT_LEN * 6]; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
474 size_t n; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
475 ngx_connection_t *cc; |
8492
65c1fc5fae15
HTTP/3: renamed server configuration variables from v3cf to h3scf.
Roman Arutyunyan <arut@nginx.com>
parents:
8481
diff
changeset
|
476 ngx_http_v3_srv_conf_t *h3scf; |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
477 ngx_http_v3_connection_t *h3c; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
478 |
8495
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
479 h3c = c->qs->parent->data; |
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
480 |
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
481 if (h3c->settings_sent) { |
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
482 return NGX_OK; |
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
483 } |
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
484 |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
485 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 send settings"); |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
486 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
487 cc = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_CONTROL); |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
488 if (cc == NULL) { |
8495
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
489 return NGX_DECLINED; |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
490 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
491 |
8492
65c1fc5fae15
HTTP/3: renamed server configuration variables from v3cf to h3scf.
Roman Arutyunyan <arut@nginx.com>
parents:
8481
diff
changeset
|
492 h3scf = ngx_http_get_module_srv_conf(h3c->hc.conf_ctx, ngx_http_v3_module); |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
493 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
494 n = ngx_http_v3_encode_varlen_int(NULL, |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
495 NGX_HTTP_V3_PARAM_MAX_TABLE_CAPACITY); |
8492
65c1fc5fae15
HTTP/3: renamed server configuration variables from v3cf to h3scf.
Roman Arutyunyan <arut@nginx.com>
parents:
8481
diff
changeset
|
496 n += ngx_http_v3_encode_varlen_int(NULL, h3scf->max_table_capacity); |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
497 n += ngx_http_v3_encode_varlen_int(NULL, NGX_HTTP_V3_PARAM_BLOCKED_STREAMS); |
8492
65c1fc5fae15
HTTP/3: renamed server configuration variables from v3cf to h3scf.
Roman Arutyunyan <arut@nginx.com>
parents:
8481
diff
changeset
|
498 n += ngx_http_v3_encode_varlen_int(NULL, h3scf->max_blocked_streams); |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
499 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
500 p = (u_char *) ngx_http_v3_encode_varlen_int(buf, |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
501 NGX_HTTP_V3_FRAME_SETTINGS); |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
502 p = (u_char *) ngx_http_v3_encode_varlen_int(p, n); |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
503 p = (u_char *) ngx_http_v3_encode_varlen_int(p, |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
504 NGX_HTTP_V3_PARAM_MAX_TABLE_CAPACITY); |
8492
65c1fc5fae15
HTTP/3: renamed server configuration variables from v3cf to h3scf.
Roman Arutyunyan <arut@nginx.com>
parents:
8481
diff
changeset
|
505 p = (u_char *) ngx_http_v3_encode_varlen_int(p, h3scf->max_table_capacity); |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
506 p = (u_char *) ngx_http_v3_encode_varlen_int(p, |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
507 NGX_HTTP_V3_PARAM_BLOCKED_STREAMS); |
8492
65c1fc5fae15
HTTP/3: renamed server configuration variables from v3cf to h3scf.
Roman Arutyunyan <arut@nginx.com>
parents:
8481
diff
changeset
|
508 p = (u_char *) ngx_http_v3_encode_varlen_int(p, h3scf->max_blocked_streams); |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
509 n = p - buf; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
510 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
511 if (cc->send(cc, buf, n) != (ssize_t) n) { |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
512 goto failed; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
513 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
514 |
8495
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
515 h3c->settings_sent = 1; |
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
516 |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
517 return NGX_OK; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
518 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
519 failed: |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
520 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
521 ngx_http_v3_close_uni_stream(cc); |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
522 |
8495
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
523 ngx_http_v3_finalize_connection(c, NGX_HTTP_V3_ERR_INTERNAL_ERROR, |
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
524 "could not send settings"); |
455a8536eaa7
QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8492
diff
changeset
|
525 |
8456
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
526 return NGX_ERROR; |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
527 } |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
528 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
529 |
c9538aef3211
HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents:
8403
diff
changeset
|
530 ngx_int_t |
8215 | 531 ngx_http_v3_client_ref_insert(ngx_connection_t *c, ngx_uint_t dynamic, |
532 ngx_uint_t index, ngx_str_t *value) | |
533 { | |
534 u_char *p, buf[NGX_HTTP_V3_PREFIX_INT_LEN * 2]; | |
535 size_t n; | |
536 ngx_connection_t *ec; | |
537 | |
538 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
539 "http3 client ref insert, %s[%ui] \"%V\"", | |
540 dynamic ? "dynamic" : "static", index, value); | |
541 | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
542 ec = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_ENCODER); |
8215 | 543 if (ec == NULL) { |
544 return NGX_ERROR; | |
545 } | |
546 | |
547 p = buf; | |
548 | |
549 *p = (dynamic ? 0x80 : 0xc0); | |
550 p = (u_char *) ngx_http_v3_encode_prefix_int(p, index, 6); | |
551 | |
552 /* XXX option for huffman? */ | |
553 *p = 0; | |
554 p = (u_char *) ngx_http_v3_encode_prefix_int(p, value->len, 7); | |
555 | |
556 n = p - buf; | |
557 | |
558 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
559 goto failed; | |
560 } | |
561 | |
562 if (ec->send(ec, value->data, value->len) != (ssize_t) value->len) { | |
563 goto failed; | |
564 } | |
565 | |
566 return NGX_OK; | |
567 | |
568 failed: | |
569 | |
570 ngx_http_v3_close_uni_stream(ec); | |
571 | |
572 return NGX_ERROR; | |
573 } | |
574 | |
575 | |
576 ngx_int_t | |
577 ngx_http_v3_client_insert(ngx_connection_t *c, ngx_str_t *name, | |
578 ngx_str_t *value) | |
579 { | |
580 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
581 size_t n; | |
582 ngx_connection_t *ec; | |
583 | |
584 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
585 "http3 client insert \"%V\":\"%V\"", name, value); | |
586 | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
587 ec = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_ENCODER); |
8215 | 588 if (ec == NULL) { |
589 return NGX_ERROR; | |
590 } | |
591 | |
592 /* XXX option for huffman? */ | |
593 buf[0] = 0x40; | |
594 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, name->len, 5) - buf; | |
595 | |
596 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
597 goto failed; | |
598 } | |
599 | |
600 if (ec->send(ec, name->data, name->len) != (ssize_t) name->len) { | |
601 goto failed; | |
602 } | |
603 | |
604 /* XXX option for huffman? */ | |
605 buf[0] = 0; | |
606 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, value->len, 7) - buf; | |
607 | |
608 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
609 goto failed; | |
610 } | |
611 | |
612 if (ec->send(ec, value->data, value->len) != (ssize_t) value->len) { | |
613 goto failed; | |
614 } | |
615 | |
616 return NGX_OK; | |
617 | |
618 failed: | |
619 | |
620 ngx_http_v3_close_uni_stream(ec); | |
621 | |
622 return NGX_ERROR; | |
623 } | |
624 | |
625 | |
626 ngx_int_t | |
627 ngx_http_v3_client_set_capacity(ngx_connection_t *c, ngx_uint_t capacity) | |
628 { | |
629 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
630 size_t n; | |
631 ngx_connection_t *ec; | |
632 | |
633 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
634 "http3 client set capacity %ui", capacity); | |
635 | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
636 ec = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_ENCODER); |
8215 | 637 if (ec == NULL) { |
638 return NGX_ERROR; | |
639 } | |
640 | |
641 buf[0] = 0x20; | |
642 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, capacity, 5) - buf; | |
643 | |
644 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
645 ngx_http_v3_close_uni_stream(ec); | |
646 return NGX_ERROR; | |
647 } | |
648 | |
649 return NGX_OK; | |
650 } | |
651 | |
652 | |
653 ngx_int_t | |
654 ngx_http_v3_client_duplicate(ngx_connection_t *c, ngx_uint_t index) | |
655 { | |
656 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
657 size_t n; | |
658 ngx_connection_t *ec; | |
659 | |
660 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
661 "http3 client duplicate %ui", index); | |
662 | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
663 ec = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_ENCODER); |
8215 | 664 if (ec == NULL) { |
665 return NGX_ERROR; | |
666 } | |
667 | |
668 buf[0] = 0; | |
669 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, index, 5) - buf; | |
670 | |
671 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
672 ngx_http_v3_close_uni_stream(ec); | |
673 return NGX_ERROR; | |
674 } | |
675 | |
676 return NGX_OK; | |
677 } | |
678 | |
679 | |
680 ngx_int_t | |
681 ngx_http_v3_client_ack_header(ngx_connection_t *c, ngx_uint_t stream_id) | |
682 { | |
683 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
684 size_t n; | |
685 ngx_connection_t *dc; | |
686 | |
687 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
688 "http3 client ack header %ui", stream_id); | |
689 | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
690 dc = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_DECODER); |
8215 | 691 if (dc == NULL) { |
692 return NGX_ERROR; | |
693 } | |
694 | |
695 buf[0] = 0x80; | |
696 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, stream_id, 7) - buf; | |
697 | |
698 if (dc->send(dc, buf, n) != (ssize_t) n) { | |
699 ngx_http_v3_close_uni_stream(dc); | |
700 return NGX_ERROR; | |
701 } | |
702 | |
703 return NGX_OK; | |
704 } | |
705 | |
706 | |
707 ngx_int_t | |
708 ngx_http_v3_client_cancel_stream(ngx_connection_t *c, ngx_uint_t stream_id) | |
709 { | |
710 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
711 size_t n; | |
712 ngx_connection_t *dc; | |
713 | |
714 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
715 "http3 client cancel stream %ui", stream_id); | |
716 | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
717 dc = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_DECODER); |
8215 | 718 if (dc == NULL) { |
719 return NGX_ERROR; | |
720 } | |
721 | |
722 buf[0] = 0x40; | |
723 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, stream_id, 6) - buf; | |
724 | |
725 if (dc->send(dc, buf, n) != (ssize_t) n) { | |
726 ngx_http_v3_close_uni_stream(dc); | |
727 return NGX_ERROR; | |
728 } | |
729 | |
730 return NGX_OK; | |
731 } | |
732 | |
733 | |
734 ngx_int_t | |
735 ngx_http_v3_client_inc_insert_count(ngx_connection_t *c, ngx_uint_t inc) | |
736 { | |
737 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
738 size_t n; | |
739 ngx_connection_t *dc; | |
740 | |
741 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
742 "http3 client increment insert count %ui", inc); | |
743 | |
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
744 dc = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_DECODER); |
8215 | 745 if (dc == NULL) { |
746 return NGX_ERROR; | |
747 } | |
748 | |
749 buf[0] = 0; | |
750 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, inc, 6) - buf; | |
751 | |
752 if (dc->send(dc, buf, n) != (ssize_t) n) { | |
753 ngx_http_v3_close_uni_stream(dc); | |
754 return NGX_ERROR; | |
755 } | |
756 | |
757 return NGX_OK; | |
758 } | |
8497 | 759 |
760 | |
761 ngx_int_t | |
762 ngx_http_v3_set_max_push_id(ngx_connection_t *c, uint64_t max_push_id) | |
763 { | |
764 ngx_http_v3_connection_t *h3c; | |
765 | |
766 h3c = c->qs->parent->data; | |
767 | |
768 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
769 "http3 MAX_PUSH_ID:%uL", max_push_id); | |
770 | |
771 if (max_push_id < h3c->max_push_id) { | |
772 return NGX_HTTP_V3_ERR_ID_ERROR; | |
773 } | |
774 | |
775 h3c->max_push_id = max_push_id; | |
776 | |
777 return NGX_OK; | |
778 } | |
779 | |
780 | |
781 ngx_int_t | |
782 ngx_http_v3_cancel_push(ngx_connection_t *c, uint64_t push_id) | |
783 { | |
784 ngx_queue_t *q; | |
785 ngx_http_request_t *r; | |
786 ngx_http_v3_push_t *push; | |
787 ngx_http_v3_connection_t *h3c; | |
788 | |
789 h3c = c->qs->parent->data; | |
790 | |
791 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
792 "http3 CANCEL_PUSH:%uL", push_id); | |
793 | |
794 if (push_id >= h3c->next_push_id) { | |
795 return NGX_HTTP_V3_ERR_ID_ERROR; | |
796 } | |
797 | |
798 for (q = ngx_queue_head(&h3c->pushing); | |
799 q != ngx_queue_sentinel(&h3c->pushing); | |
800 q = ngx_queue_next(&h3c->pushing)) | |
801 { | |
802 push = (ngx_http_v3_push_t *) q; | |
803 | |
804 if (push->id != push_id) { | |
805 continue; | |
806 } | |
807 | |
808 r = push->connection->data; | |
809 | |
810 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
811 "http3 cancel push"); | |
812 | |
813 ngx_http_finalize_request(r, NGX_HTTP_CLOSE); | |
814 | |
815 break; | |
816 } | |
817 | |
818 return NGX_OK; | |
819 } |