Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3_streams.c @ 8362:44cac24aaa44 quic
Assign connection number to every QUIC stream log.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Thu, 23 Apr 2020 18:05:05 +0300 |
| parents | dadbc66e9fca |
| children | c101438c69a4 |
| rev | line source |
|---|---|
| 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 | |
| 24 static void ngx_http_v3_close_uni_stream(ngx_connection_t *c); | |
| 25 static void ngx_http_v3_read_uni_stream_type(ngx_event_t *rev); | |
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26 static void ngx_http_v3_uni_read_handler(ngx_event_t *rev); |
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27 static void ngx_http_v3_dummy_write_handler(ngx_event_t *wev); |
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28 static ngx_connection_t *ngx_http_v3_get_uni_stream(ngx_connection_t *c, |
| 8215 | 29 ngx_uint_t type); |
| 30 | |
| 31 | |
| 32 void | |
| 33 ngx_http_v3_handle_client_uni_stream(ngx_connection_t *c) | |
| 34 { | |
| 35 ngx_http_v3_uni_stream_t *us; | |
| 36 | |
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37 ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_CONTROL); |
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38 ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_ENCODER); |
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39 ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_DECODER); |
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40 |
| 8215 | 41 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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42 "http3 new uni stream id:0x%uxL", c->qs->id); |
| 8215 | 43 |
| 44 us = ngx_pcalloc(c->pool, sizeof(ngx_http_v3_uni_stream_t)); | |
| 45 if (us == NULL) { | |
| 46 ngx_http_v3_close_uni_stream(c); | |
| 47 return; | |
| 48 } | |
| 49 | |
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50 us->index = -1; |
| 8215 | 51 |
| 52 c->data = us; | |
| 53 | |
| 54 c->read->handler = ngx_http_v3_read_uni_stream_type; | |
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55 c->write->handler = ngx_http_v3_dummy_write_handler; |
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56 |
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57 ngx_http_v3_read_uni_stream_type(c->read); |
| 8215 | 58 } |
| 59 | |
| 60 | |
| 61 static void | |
| 62 ngx_http_v3_close_uni_stream(ngx_connection_t *c) | |
| 63 { | |
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64 ngx_pool_t *pool; |
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65 ngx_http_v3_connection_t *h3c; |
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66 ngx_http_v3_uni_stream_t *us; |
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67 |
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68 us = c->data; |
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69 h3c = c->qs->parent->data; |
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70 |
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71 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 close stream"); |
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72 |
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73 if (us->index >= 0) { |
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74 h3c->known_streams[us->index] = NULL; |
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75 } |
| 8215 | 76 |
| 77 c->destroyed = 1; | |
| 78 | |
| 79 pool = c->pool; | |
| 80 | |
| 81 ngx_close_connection(c); | |
| 82 | |
| 83 ngx_destroy_pool(pool); | |
| 84 } | |
| 85 | |
| 86 | |
| 87 static void | |
| 88 ngx_http_v3_read_uni_stream_type(ngx_event_t *rev) | |
| 89 { | |
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90 u_char ch; |
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91 ssize_t n; |
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92 ngx_int_t index; |
| 8215 | 93 ngx_connection_t *c; |
| 94 ngx_http_v3_connection_t *h3c; | |
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95 ngx_http_v3_uni_stream_t *us; |
| 8215 | 96 |
| 97 c = rev->data; | |
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98 us = c->data; |
| 8215 | 99 h3c = c->qs->parent->data; |
| 100 | |
| 101 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 read stream type"); | |
| 102 | |
| 103 while (rev->ready) { | |
| 104 | |
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105 n = c->recv(c, &ch, 1); |
| 8215 | 106 |
| 107 if (n == NGX_ERROR) { | |
| 108 goto failed; | |
| 109 } | |
| 110 | |
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111 if (n == NGX_AGAIN || n != 1) { |
| 8215 | 112 break; |
| 113 } | |
| 114 | |
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115 switch (ch) { |
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116 |
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117 case NGX_HTTP_V3_STREAM_ENCODER: |
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118 |
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119 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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120 "http3 encoder stream"); |
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121 |
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122 index = NGX_HTTP_V3_STREAM_CLIENT_ENCODER; |
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123 us->handler = ngx_http_v3_parse_encoder; |
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124 n = sizeof(ngx_http_v3_parse_encoder_t); |
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125 |
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126 break; |
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127 |
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128 case NGX_HTTP_V3_STREAM_DECODER: |
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129 |
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130 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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131 "http3 decoder stream"); |
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132 |
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133 index = NGX_HTTP_V3_STREAM_CLIENT_DECODER; |
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134 us->handler = ngx_http_v3_parse_decoder; |
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135 n = sizeof(ngx_http_v3_parse_decoder_t); |
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136 |
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137 break; |
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138 |
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139 case NGX_HTTP_V3_STREAM_CONTROL: |
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140 |
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141 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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142 "http3 control stream"); |
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143 |
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144 index = NGX_HTTP_V3_STREAM_CLIENT_CONTROL; |
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145 us->handler = ngx_http_v3_parse_control; |
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146 n = sizeof(ngx_http_v3_parse_control_t); |
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147 |
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148 break; |
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149 |
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150 default: |
| 8215 | 151 |
| 152 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
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153 "http3 stream 0x%02xi", (ngx_int_t) ch); |
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154 index = -1; |
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155 n = 0; |
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156 } |
| 8215 | 157 |
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158 if (index >= 0) { |
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159 if (h3c->known_streams[index]) { |
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160 ngx_log_error(NGX_LOG_INFO, c->log, 0, "stream exists"); |
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161 goto failed; |
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162 } |
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163 |
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164 us->index = index; |
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165 h3c->known_streams[index] = c; |
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166 } |
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167 |
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168 if (n) { |
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169 us->data = ngx_pcalloc(c->pool, n); |
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170 if (us->data == NULL) { |
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171 goto failed; |
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172 } |
| 8215 | 173 } |
| 174 | |
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175 rev->handler = ngx_http_v3_uni_read_handler; |
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176 ngx_http_v3_uni_read_handler(rev); |
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177 return; |
| 8215 | 178 } |
| 179 | |
| 180 if (ngx_handle_read_event(rev, 0) != NGX_OK) { | |
| 181 goto failed; | |
| 182 } | |
| 183 | |
| 184 return; | |
| 185 | |
| 186 failed: | |
| 187 | |
| 188 ngx_http_v3_close_uni_stream(c); | |
| 189 } | |
| 190 | |
| 191 | |
| 192 static void | |
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193 ngx_http_v3_uni_read_handler(ngx_event_t *rev) |
| 8215 | 194 { |
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195 u_char buf[128]; |
| 8215 | 196 ssize_t n; |
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197 ngx_int_t rc, i; |
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198 ngx_connection_t *c; |
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199 ngx_http_v3_uni_stream_t *us; |
| 8215 | 200 |
| 201 c = rev->data; | |
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202 us = c->data; |
| 8215 | 203 |
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204 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 read handler"); |
| 8215 | 205 |
| 206 while (rev->ready) { | |
| 207 | |
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208 n = c->recv(c, buf, sizeof(buf)); |
| 8215 | 209 |
| 210 if (n == NGX_ERROR || n == 0) { | |
| 211 goto failed; | |
| 212 } | |
| 213 | |
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214 if (n == NGX_AGAIN) { |
| 8215 | 215 break; |
| 216 } | |
| 217 | |
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218 if (us->handler == NULL) { |
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219 continue; |
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220 } |
| 8215 | 221 |
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222 for (i = 0; i < n; i++) { |
| 8215 | 223 |
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224 rc = us->handler(c, us->data, buf[i]); |
| 8215 | 225 |
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226 if (rc == NGX_ERROR) { |
| 8215 | 227 goto failed; |
| 228 } | |
| 229 | |
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230 if (rc == NGX_DONE) { |
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231 goto done; |
| 8215 | 232 } |
| 233 | |
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234 /* rc == NGX_AGAIN */ |
| 8215 | 235 } |
| 236 } | |
| 237 | |
| 238 if (ngx_handle_read_event(rev, 0) != NGX_OK) { | |
| 239 goto failed; | |
| 240 } | |
| 241 | |
| 242 return; | |
| 243 | |
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244 done: |
| 8215 | 245 |
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246 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 read done"); |
| 8215 | 247 |
| 248 failed: | |
| 249 | |
| 250 ngx_http_v3_close_uni_stream(c); | |
| 251 } | |
| 252 | |
| 253 | |
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254 static void |
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255 ngx_http_v3_dummy_write_handler(ngx_event_t *wev) |
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256 { |
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257 ngx_connection_t *c; |
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258 |
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259 c = wev->data; |
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260 |
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261 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 dummy write handler"); |
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262 |
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263 if (ngx_handle_write_event(wev, 0) != NGX_OK) { |
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264 ngx_http_v3_close_uni_stream(c); |
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265 } |
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266 } |
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267 |
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268 |
| 8215 | 269 /* XXX async & buffered stream writes */ |
| 270 | |
| 271 static ngx_connection_t * | |
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272 ngx_http_v3_get_uni_stream(ngx_connection_t *c, ngx_uint_t type) |
| 8215 | 273 { |
| 274 u_char buf[NGX_HTTP_V3_VARLEN_INT_LEN]; | |
| 275 size_t n; | |
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276 ngx_int_t index; |
| 8215 | 277 ngx_connection_t *sc; |
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278 ngx_http_v3_connection_t *h3c; |
| 8215 | 279 ngx_http_v3_uni_stream_t *us; |
| 280 | |
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281 switch (type) { |
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282 case NGX_HTTP_V3_STREAM_ENCODER: |
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283 index = NGX_HTTP_V3_STREAM_SERVER_ENCODER; |
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284 break; |
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285 case NGX_HTTP_V3_STREAM_DECODER: |
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286 index = NGX_HTTP_V3_STREAM_SERVER_DECODER; |
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287 break; |
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288 case NGX_HTTP_V3_STREAM_CONTROL: |
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289 index = NGX_HTTP_V3_STREAM_SERVER_CONTROL; |
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290 break; |
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|
291 default: |
|
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292 index = -1; |
|
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|
293 } |
|
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|
294 |
|
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|
295 h3c = c->qs->parent->data; |
|
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|
296 |
|
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|
297 if (index >= 0) { |
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|
298 if (h3c->known_streams[index]) { |
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299 return h3c->known_streams[index]; |
|
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|
300 } |
|
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|
301 } |
|
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|
302 |
|
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|
303 sc = ngx_quic_create_uni_stream(c); |
| 8215 | 304 if (sc == NULL) { |
| 305 return NULL; | |
| 306 } | |
| 307 | |
| 308 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 309 "http3 create uni stream, type:%ui", type); | |
| 310 | |
| 311 us = ngx_pcalloc(sc->pool, sizeof(ngx_http_v3_uni_stream_t)); | |
| 312 if (us == NULL) { | |
| 313 goto failed; | |
| 314 } | |
| 315 | |
|
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|
316 us->index = index; |
|
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|
317 |
| 8215 | 318 sc->data = us; |
| 319 | |
|
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|
320 sc->read->handler = ngx_http_v3_uni_read_handler; |
|
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|
321 sc->write->handler = ngx_http_v3_dummy_write_handler; |
|
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|
322 |
|
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|
323 h3c->known_streams[index] = sc; |
| 8215 | 324 |
| 325 n = (u_char *) ngx_http_v3_encode_varlen_int(buf, type) - buf; | |
| 326 | |
| 327 if (sc->send(sc, buf, n) != (ssize_t) n) { | |
| 328 goto failed; | |
| 329 } | |
| 330 | |
| 331 return sc; | |
| 332 | |
| 333 failed: | |
| 334 | |
| 335 ngx_http_v3_close_uni_stream(sc); | |
| 336 | |
| 337 return NULL; | |
| 338 } | |
| 339 | |
| 340 | |
| 341 ngx_int_t | |
| 342 ngx_http_v3_client_ref_insert(ngx_connection_t *c, ngx_uint_t dynamic, | |
| 343 ngx_uint_t index, ngx_str_t *value) | |
| 344 { | |
| 345 u_char *p, buf[NGX_HTTP_V3_PREFIX_INT_LEN * 2]; | |
| 346 size_t n; | |
| 347 ngx_connection_t *ec; | |
| 348 | |
| 349 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 350 "http3 client ref insert, %s[%ui] \"%V\"", | |
| 351 dynamic ? "dynamic" : "static", index, value); | |
| 352 | |
|
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|
353 ec = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_ENCODER); |
| 8215 | 354 if (ec == NULL) { |
| 355 return NGX_ERROR; | |
| 356 } | |
| 357 | |
| 358 p = buf; | |
| 359 | |
| 360 *p = (dynamic ? 0x80 : 0xc0); | |
| 361 p = (u_char *) ngx_http_v3_encode_prefix_int(p, index, 6); | |
| 362 | |
| 363 /* XXX option for huffman? */ | |
| 364 *p = 0; | |
| 365 p = (u_char *) ngx_http_v3_encode_prefix_int(p, value->len, 7); | |
| 366 | |
| 367 n = p - buf; | |
| 368 | |
| 369 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
| 370 goto failed; | |
| 371 } | |
| 372 | |
| 373 if (ec->send(ec, value->data, value->len) != (ssize_t) value->len) { | |
| 374 goto failed; | |
| 375 } | |
| 376 | |
| 377 return NGX_OK; | |
| 378 | |
| 379 failed: | |
| 380 | |
| 381 ngx_http_v3_close_uni_stream(ec); | |
| 382 | |
| 383 return NGX_ERROR; | |
| 384 } | |
| 385 | |
| 386 | |
| 387 ngx_int_t | |
| 388 ngx_http_v3_client_insert(ngx_connection_t *c, ngx_str_t *name, | |
| 389 ngx_str_t *value) | |
| 390 { | |
| 391 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
| 392 size_t n; | |
| 393 ngx_connection_t *ec; | |
| 394 | |
| 395 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 396 "http3 client insert \"%V\":\"%V\"", name, value); | |
| 397 | |
|
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|
398 ec = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_ENCODER); |
| 8215 | 399 if (ec == NULL) { |
| 400 return NGX_ERROR; | |
| 401 } | |
| 402 | |
| 403 /* XXX option for huffman? */ | |
| 404 buf[0] = 0x40; | |
| 405 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, name->len, 5) - buf; | |
| 406 | |
| 407 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
| 408 goto failed; | |
| 409 } | |
| 410 | |
| 411 if (ec->send(ec, name->data, name->len) != (ssize_t) name->len) { | |
| 412 goto failed; | |
| 413 } | |
| 414 | |
| 415 /* XXX option for huffman? */ | |
| 416 buf[0] = 0; | |
| 417 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, value->len, 7) - buf; | |
| 418 | |
| 419 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
| 420 goto failed; | |
| 421 } | |
| 422 | |
| 423 if (ec->send(ec, value->data, value->len) != (ssize_t) value->len) { | |
| 424 goto failed; | |
| 425 } | |
| 426 | |
| 427 return NGX_OK; | |
| 428 | |
| 429 failed: | |
| 430 | |
| 431 ngx_http_v3_close_uni_stream(ec); | |
| 432 | |
| 433 return NGX_ERROR; | |
| 434 } | |
| 435 | |
| 436 | |
| 437 ngx_int_t | |
| 438 ngx_http_v3_client_set_capacity(ngx_connection_t *c, ngx_uint_t capacity) | |
| 439 { | |
| 440 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
| 441 size_t n; | |
| 442 ngx_connection_t *ec; | |
| 443 | |
| 444 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 445 "http3 client set capacity %ui", capacity); | |
| 446 | |
|
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diff
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|
447 ec = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_ENCODER); |
| 8215 | 448 if (ec == NULL) { |
| 449 return NGX_ERROR; | |
| 450 } | |
| 451 | |
| 452 buf[0] = 0x20; | |
| 453 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, capacity, 5) - buf; | |
| 454 | |
| 455 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
| 456 ngx_http_v3_close_uni_stream(ec); | |
| 457 return NGX_ERROR; | |
| 458 } | |
| 459 | |
| 460 return NGX_OK; | |
| 461 } | |
| 462 | |
| 463 | |
| 464 ngx_int_t | |
| 465 ngx_http_v3_client_duplicate(ngx_connection_t *c, ngx_uint_t index) | |
| 466 { | |
| 467 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
| 468 size_t n; | |
| 469 ngx_connection_t *ec; | |
| 470 | |
| 471 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 472 "http3 client duplicate %ui", index); | |
| 473 | |
|
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|
474 ec = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_ENCODER); |
| 8215 | 475 if (ec == NULL) { |
| 476 return NGX_ERROR; | |
| 477 } | |
| 478 | |
| 479 buf[0] = 0; | |
| 480 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, index, 5) - buf; | |
| 481 | |
| 482 if (ec->send(ec, buf, n) != (ssize_t) n) { | |
| 483 ngx_http_v3_close_uni_stream(ec); | |
| 484 return NGX_ERROR; | |
| 485 } | |
| 486 | |
| 487 return NGX_OK; | |
| 488 } | |
| 489 | |
| 490 | |
| 491 ngx_int_t | |
| 492 ngx_http_v3_client_ack_header(ngx_connection_t *c, ngx_uint_t stream_id) | |
| 493 { | |
| 494 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
| 495 size_t n; | |
| 496 ngx_connection_t *dc; | |
| 497 | |
| 498 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 499 "http3 client ack header %ui", stream_id); | |
| 500 | |
|
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
501 dc = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_DECODER); |
| 8215 | 502 if (dc == NULL) { |
| 503 return NGX_ERROR; | |
| 504 } | |
| 505 | |
| 506 buf[0] = 0x80; | |
| 507 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, stream_id, 7) - buf; | |
| 508 | |
| 509 if (dc->send(dc, buf, n) != (ssize_t) n) { | |
| 510 ngx_http_v3_close_uni_stream(dc); | |
| 511 return NGX_ERROR; | |
| 512 } | |
| 513 | |
| 514 return NGX_OK; | |
| 515 } | |
| 516 | |
| 517 | |
| 518 ngx_int_t | |
| 519 ngx_http_v3_client_cancel_stream(ngx_connection_t *c, ngx_uint_t stream_id) | |
| 520 { | |
| 521 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
| 522 size_t n; | |
| 523 ngx_connection_t *dc; | |
| 524 | |
| 525 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 526 "http3 client cancel stream %ui", stream_id); | |
| 527 | |
|
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
528 dc = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_DECODER); |
| 8215 | 529 if (dc == NULL) { |
| 530 return NGX_ERROR; | |
| 531 } | |
| 532 | |
| 533 buf[0] = 0x40; | |
| 534 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, stream_id, 6) - buf; | |
| 535 | |
| 536 if (dc->send(dc, buf, n) != (ssize_t) n) { | |
| 537 ngx_http_v3_close_uni_stream(dc); | |
| 538 return NGX_ERROR; | |
| 539 } | |
| 540 | |
| 541 return NGX_OK; | |
| 542 } | |
| 543 | |
| 544 | |
| 545 ngx_int_t | |
| 546 ngx_http_v3_client_inc_insert_count(ngx_connection_t *c, ngx_uint_t inc) | |
| 547 { | |
| 548 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN]; | |
| 549 size_t n; | |
| 550 ngx_connection_t *dc; | |
| 551 | |
| 552 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 553 "http3 client increment insert count %ui", inc); | |
| 554 | |
|
8283
dadbc66e9fca
Simplifed handling HTTP/3 streams.
Roman Arutyunyan <arut@nginx.com>
parents:
8281
diff
changeset
|
555 dc = ngx_http_v3_get_uni_stream(c, NGX_HTTP_V3_STREAM_DECODER); |
| 8215 | 556 if (dc == NULL) { |
| 557 return NGX_ERROR; | |
| 558 } | |
| 559 | |
| 560 buf[0] = 0; | |
| 561 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, inc, 6) - buf; | |
| 562 | |
| 563 if (dc->send(dc, buf, n) != (ssize_t) n) { | |
| 564 ngx_http_v3_close_uni_stream(dc); | |
| 565 return NGX_ERROR; | |
| 566 } | |
| 567 | |
| 568 return NGX_OK; | |
| 569 } |