8215
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1
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2 /*
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3 * Copyright (C) Roman Arutyunyan
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4 * Copyright (C) Nginx, Inc.
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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11
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12
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13 #define NGX_HTTP_V3_CONTROL_STREAM 0x00
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14 #define NGX_HTTP_V3_PUSH_STREAM 0x01
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15 #define NGX_HTTP_V3_ENCODER_STREAM 0x02
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16 #define NGX_HTTP_V3_DECODER_STREAM 0x03
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17
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18
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19 typedef struct {
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20 uint32_t signature; /* QSTR */
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21 u_char buf[4];
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22
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23 ngx_uint_t len;
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24 ngx_uint_t type;
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25 ngx_uint_t state;
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26 ngx_uint_t index;
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27 ngx_uint_t offset;
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28
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29 ngx_str_t name;
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30 ngx_str_t value;
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31
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32 unsigned client:1;
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33 unsigned dynamic:1;
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34 unsigned huffman:1;
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35 } ngx_http_v3_uni_stream_t;
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36
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37
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38 static void ngx_http_v3_close_uni_stream(ngx_connection_t *c);
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39 static void ngx_http_v3_uni_stream_cleanup(void *data);
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40 static void ngx_http_v3_read_uni_stream_type(ngx_event_t *rev);
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41 static void ngx_http_v3_dummy_stream_handler(ngx_event_t *rev);
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42 static void ngx_http_v3_client_encoder_handler(ngx_event_t *rev);
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43 static void ngx_http_v3_client_decoder_handler(ngx_event_t *rev);
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44
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45 static ngx_connection_t *ngx_http_v3_create_uni_stream(ngx_connection_t *c,
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46 ngx_uint_t type);
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47 static ngx_connection_t *ngx_http_v3_get_server_encoder(ngx_connection_t *c);
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48 static ngx_connection_t *ngx_http_v3_get_server_decoder(ngx_connection_t *c);
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49
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50
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51 void
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52 ngx_http_v3_handle_client_uni_stream(ngx_connection_t *c)
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53 {
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54 ngx_pool_cleanup_t *cln;
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55 ngx_http_v3_uni_stream_t *us;
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56
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57 c->log->connection = c->number;
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58
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59 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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60 "http3 new uni stream id:0x%uXL", c->qs->id);
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61
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62 us = ngx_pcalloc(c->pool, sizeof(ngx_http_v3_uni_stream_t));
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63 if (us == NULL) {
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64 ngx_http_v3_close_uni_stream(c);
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65 return;
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66 }
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67
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68 us->signature = NGX_HTTP_V3_STREAM;
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69 us->client = 1;
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70 us->type = (ngx_uint_t) -1;
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71
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72 c->data = us;
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73
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74 cln = ngx_pool_cleanup_add(c->pool, 0);
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75 if (cln == NULL) {
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76 ngx_http_v3_close_uni_stream(c);
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77 return;
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78 }
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79
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80 cln->handler = ngx_http_v3_uni_stream_cleanup;
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81 cln->data = c;
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82
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83 c->read->handler = ngx_http_v3_read_uni_stream_type;
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84 c->read->handler(c->read);
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85 }
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86
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87
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88 static void
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89 ngx_http_v3_close_uni_stream(ngx_connection_t *c)
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90 {
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91 ngx_pool_t *pool;
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92
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93 c->destroyed = 1;
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94
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95 pool = c->pool;
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96
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97 ngx_close_connection(c);
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98
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99 ngx_destroy_pool(pool);
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100 }
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101
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102
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103 static void
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104 ngx_http_v3_uni_stream_cleanup(void *data)
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105 {
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106 ngx_connection_t *c = data;
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107
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108 ngx_http_v3_connection_t *h3c;
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109 ngx_http_v3_uni_stream_t *us;
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110
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111 us = c->data;
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112 h3c = c->qs->parent->data;
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113
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114 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 close stream");
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115
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116 switch (us->type) {
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117
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118 case NGX_HTTP_V3_ENCODER_STREAM:
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119
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120 if (us->client) {
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121 h3c->client_encoder = NULL;
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122 } else {
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123 h3c->server_encoder = NULL;
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124 }
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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_DECODER_STREAM:
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129
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130 if (us->client) {
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131 h3c->client_decoder = NULL;
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132 } else {
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133 h3c->server_decoder = NULL;
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134 }
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135
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136 break;
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137 }
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138 }
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139
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140
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141 static void
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142 ngx_http_v3_read_uni_stream_type(ngx_event_t *rev)
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143 {
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144 u_char *p;
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145 ssize_t n, len;
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146 ngx_connection_t *c;
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147 ngx_http_v3_connection_t *h3c;
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148 ngx_http_v3_uni_stream_t *us;
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149
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150 c = rev->data;
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151 us = c->data;
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152 h3c = c->qs->parent->data;
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153
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154 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 read stream type");
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155
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156 while (rev->ready) {
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157
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158 p = &us->buf[us->len];
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159
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160 if (us->len == 0) {
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161 len = 1;
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162 } else {
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163 len = (us->buf[0] >> 6) + 1 - us->len;
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164 }
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165
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166 n = c->recv(c, p, len);
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167
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168 if (n == NGX_ERROR) {
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169 goto failed;
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170 }
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171
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172 if (n == NGX_AGAIN) {
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173 break;
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174 }
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175
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176 us->len += n;
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177
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178 if (n != len) {
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179 break;
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180 }
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181
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182 if ((us->buf[0] >> 6) + 1 == us->len) {
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183 us->type = ngx_http_v3_decode_varlen_int(us->buf);
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184
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185 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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186 "http3 stream type:%ui", us->type);
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187
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188 switch (us->type) {
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189
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190 case NGX_HTTP_V3_ENCODER_STREAM:
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191 if (h3c->client_encoder) {
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192 goto failed;
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193 }
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194
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195 h3c->client_encoder = c;
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196 rev->handler = ngx_http_v3_client_encoder_handler;
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197 break;
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198
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199 case NGX_HTTP_V3_DECODER_STREAM:
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200 if (h3c->client_decoder) {
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201 goto failed;
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202 }
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203
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204 h3c->client_decoder = c;
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205 rev->handler = ngx_http_v3_client_decoder_handler;
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206 break;
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207
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208 case NGX_HTTP_V3_CONTROL_STREAM:
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209 case NGX_HTTP_V3_PUSH_STREAM:
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210
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211 /* ignore these */
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212
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213 default:
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214 rev->handler = ngx_http_v3_dummy_stream_handler;
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215 }
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216
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217 rev->handler(rev);
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218 return;
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219 }
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220 }
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221
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222 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
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223 goto failed;
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224 }
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225
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226 return;
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227
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228 failed:
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229
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230 ngx_http_v3_close_uni_stream(c);
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231 }
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232
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233
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234 static void
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235 ngx_http_v3_dummy_stream_handler(ngx_event_t *rev)
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236 {
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237 u_char buf[128];
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238 ngx_connection_t *c;
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239
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240 /* read out and ignore */
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241
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242 c = rev->data;
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243
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244 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 dummy stream reader");
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245
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246 while (rev->ready) {
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247 if (c->recv(c, buf, sizeof(buf)) == NGX_ERROR) {
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248 goto failed;
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249 }
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250 }
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251
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252 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
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253 goto failed;
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254 }
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255
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256 return;
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257
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258 failed:
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259
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260 ngx_http_v3_close_uni_stream(c);
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261 }
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262
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263
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264 static void
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265 ngx_http_v3_client_encoder_handler(ngx_event_t *rev)
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266 {
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267 u_char v;
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268 ssize_t n;
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269 ngx_str_t name, value;
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270 ngx_uint_t dynamic, huffman, index, offset;
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271 ngx_connection_t *c, *pc;
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272 ngx_http_v3_uni_stream_t *st;
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273 enum {
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274 sw_start = 0,
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275 sw_inr_name_index,
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276 sw_inr_value_length,
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277 sw_inr_read_value_length,
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278 sw_inr_value,
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279 sw_iwnr_name_length,
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280 sw_iwnr_name,
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281 sw_iwnr_value_length,
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282 sw_iwnr_read_value_length,
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283 sw_iwnr_value,
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284 sw_capacity,
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285 sw_duplicate
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286 } state;
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287
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288 c = rev->data;
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289 st = c->data;
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290 pc = c->qs->parent;
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291
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292 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 client encoder");
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293
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294 state = st->state;
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295 dynamic = st->dynamic;
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296 huffman = st->huffman;
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297 index = st->index;
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298 offset = st->offset;
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299 name = st->name;
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300 value = st->value;
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301
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302 while (rev->ready) {
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303
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304 /* XXX limit checks */
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305 /* XXX buffer input */
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306
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307 n = c->recv(c, &v, 1);
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308
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309 if (n == NGX_ERROR || n == 0) {
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310 goto failed;
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311 }
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312
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313 if (n != 1) {
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314 break;
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315 }
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316
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317 /* XXX v -> ch */
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318
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319 switch (state) {
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320
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321 case sw_start:
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322
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323 if (v & 0x80) {
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324 /* Insert With Name Reference */
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325
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326 dynamic = (v & 0x40) ? 0 : 1;
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327 index = v & 0x3f;
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328
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329 if (index != 0x3f) {
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330 state = sw_inr_value_length;
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331 break;
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332 }
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333
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334 index = 0;
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335 state = sw_inr_name_index;
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336 break;
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337 }
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338
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339 if (v & 0x40) {
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340 /* Insert Without Name Reference */
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341
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342 huffman = (v & 0x20) ? 1 : 0;
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343 name.len = v & 0x1f;
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344
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345 if (name.len != 0x1f) {
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346 offset = 0;
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347 state = sw_iwnr_name;
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348 break;
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349 }
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350
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351 name.len = 0;
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352 state = sw_iwnr_name_length;
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353 break;
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354 }
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355
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356 if (v & 0x20) {
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357 /* Set Dynamic Table Capacity */
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358
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359 index = v & 0x1f;
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360
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361 if (index != 0x1f) {
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362 if (ngx_http_v3_set_capacity(c, index) != NGX_OK) {
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363 goto failed;
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364 }
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365
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366 break;
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367 }
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368
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369 index = 0;
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370 state = sw_capacity;
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371 break;
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372 }
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373
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374 /* Duplicate */
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375
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376 index = v & 0x1f;
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377
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378 if (index != 0x1f) {
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379 if (ngx_http_v3_duplicate(c, index) != NGX_OK) {
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380 goto failed;
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381 }
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382
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383 break;
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384 }
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385
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386 index = 0;
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387 state = sw_duplicate;
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388 break;
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389
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390 case sw_inr_name_index:
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391
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392 index = (index << 7) + (v & 0x7f);
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393 if (v & 0x80) {
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394 break;
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395 }
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396
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397 index += 0x3f;
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398 state = sw_inr_value_length;
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399 break;
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400
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401 case sw_inr_value_length:
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402
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403 huffman = (v & 0x80) ? 1 : 0;
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404 value.len = v & 0x7f;
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405
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406 if (value.len == 0) {
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407 value.data = NULL;
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408
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409 if (ngx_http_v3_ref_insert(c, dynamic, index, &value) != NGX_OK)
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410 {
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411 goto failed;
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412 }
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413
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414 state = sw_start;
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415 break;
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416 }
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417
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418 if (value.len != 0x7f) {
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419 value.data = ngx_pnalloc(pc->pool, value.len);
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420 if (value.data == NULL) {
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421 goto failed;
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422 }
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423
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424 state = sw_inr_value;
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425 offset = 0;
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426 break;
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427 }
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428
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429 value.len = 0;
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430 state = sw_inr_read_value_length;
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431 break;
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432
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433 case sw_inr_read_value_length:
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434
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435 value.len = (value.len << 7) + (v & 0x7f);
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436 if (v & 0x80) {
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437 break;
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438 }
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439
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440 value.len += 0x7f;
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441
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442 value.data = ngx_pnalloc(pc->pool, value.len);
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443 if (value.data == NULL) {
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444 goto failed;
|
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445 }
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446
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447 state = sw_inr_value;
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448 offset = 0;
|
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449 break;
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450
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451 case sw_inr_value:
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452
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453 value.data[offset++] = v;
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454 if (offset != value.len) {
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455 break;
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456 }
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457
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458 if (huffman) {
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459 if (ngx_http_v3_decode_huffman(pc, &value) != NGX_OK) {
|
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460 goto failed;
|
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461 }
|
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462 }
|
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463
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464 if (ngx_http_v3_ref_insert(c, dynamic, index, &value) != NGX_OK) {
|
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465 goto failed;
|
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466 }
|
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467
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468 state = sw_start;
|
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469 break;
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470
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471 case sw_iwnr_name_length:
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472
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473 name.len = (name.len << 7) + (v & 0x7f);
|
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474 if (v & 0x80) {
|
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475 break;
|
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476 }
|
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477
|
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478 name.len += 0x1f;
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479
|
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480 name.data = ngx_pnalloc(pc->pool, name.len);
|
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481 if (name.data == NULL) {
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482 goto failed;
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483 }
|
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484
|
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485 offset = 0;
|
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486 state = sw_iwnr_name;
|
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487 break;
|
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488
|
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489 case sw_iwnr_name:
|
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490
|
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491 name.data[offset++] = v;
|
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492 if (offset != name.len) {
|
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493 break;
|
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494 }
|
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495
|
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496 if (huffman) {
|
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497 if (ngx_http_v3_decode_huffman(pc, &name) != NGX_OK) {
|
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498 goto failed;
|
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499 }
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500 }
|
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501
|
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502 state = sw_iwnr_value_length;
|
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503 break;
|
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504
|
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505 case sw_iwnr_value_length:
|
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506
|
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507 huffman = (v & 0x80) ? 1 : 0;
|
|
508 value.len = v & 0x7f;
|
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509
|
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510 if (value.len == 0) {
|
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511 value.data = NULL;
|
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512
|
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513 if (ngx_http_v3_insert(c, &name, &value) != NGX_OK) {
|
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514 goto failed;
|
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515 }
|
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516
|
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517 state = sw_start;
|
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518 break;
|
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519 }
|
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520
|
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521 if (value.len != 0x7f) {
|
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522 value.data = ngx_pnalloc(pc->pool, value.len);
|
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523 if (value.data == NULL) {
|
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524 goto failed;
|
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525 }
|
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526
|
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527 offset = 0;
|
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528 state = sw_iwnr_value;
|
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529 break;
|
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530 }
|
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531
|
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532 state = sw_iwnr_read_value_length;
|
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533 break;
|
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534
|
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535 case sw_iwnr_read_value_length:
|
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536
|
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537 value.len = (value.len << 7) + (v & 0x7f);
|
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538 if (v & 0x80) {
|
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539 break;
|
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540 }
|
|
541
|
|
542 value.data = ngx_pnalloc(pc->pool, value.len);
|
|
543 if (value.data == NULL) {
|
|
544 goto failed;
|
|
545 }
|
|
546
|
|
547 offset = 0;
|
|
548 state = sw_iwnr_value;
|
|
549 break;
|
|
550
|
|
551 case sw_iwnr_value:
|
|
552
|
|
553 value.data[offset++] = v;
|
|
554 if (offset != value.len) {
|
|
555 break;
|
|
556 }
|
|
557
|
|
558 if (huffman) {
|
|
559 if (ngx_http_v3_decode_huffman(pc, &value) != NGX_OK) {
|
|
560 goto failed;
|
|
561 }
|
|
562 }
|
|
563
|
|
564 if (ngx_http_v3_insert(c, &name, &value) != NGX_OK) {
|
|
565 goto failed;
|
|
566 }
|
|
567
|
|
568 state = sw_start;
|
|
569 break;
|
|
570
|
|
571
|
|
572 case sw_capacity:
|
|
573
|
|
574 index = (index << 7) + (v & 0x7f);
|
|
575 if (v & 0x80) {
|
|
576 break;
|
|
577 }
|
|
578
|
|
579 index += 0x1f;
|
|
580
|
|
581 if (ngx_http_v3_set_capacity(c, index) != NGX_OK) {
|
|
582 goto failed;
|
|
583 }
|
|
584
|
|
585 state = sw_start;
|
|
586 break;
|
|
587
|
|
588 case sw_duplicate:
|
|
589
|
|
590 index = (index << 7) + (v & 0x7f);
|
|
591 if (v & 0x80) {
|
|
592 break;
|
|
593 }
|
|
594
|
|
595 index += 0x1f;
|
|
596
|
|
597 if (ngx_http_v3_duplicate(c, index) != NGX_OK) {
|
|
598 goto failed;
|
|
599 }
|
|
600
|
|
601 state = sw_start;
|
|
602 break;
|
|
603 }
|
|
604 }
|
|
605
|
|
606 st->state = state;
|
|
607 st->dynamic = dynamic;
|
|
608 st->huffman = huffman;
|
|
609 st->index = index;
|
|
610 st->offset = offset;
|
|
611 st->name = name;
|
|
612 st->value = value;
|
|
613
|
|
614 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
615 goto failed;
|
|
616 }
|
|
617
|
|
618 return;
|
|
619
|
|
620 failed:
|
|
621
|
|
622 ngx_http_v3_close_uni_stream(c);
|
|
623 }
|
|
624
|
|
625
|
|
626 static void
|
|
627 ngx_http_v3_client_decoder_handler(ngx_event_t *rev)
|
|
628 {
|
|
629 u_char v;
|
|
630 ssize_t n;
|
|
631 ngx_uint_t index;
|
|
632 ngx_connection_t *c;
|
|
633 ngx_http_v3_uni_stream_t *st;
|
|
634 enum {
|
|
635 sw_start = 0,
|
|
636 sw_ack_header,
|
|
637 sw_cancel_stream,
|
|
638 sw_inc_insert_count
|
|
639 } state;
|
|
640
|
|
641 c = rev->data;
|
|
642 st = c->data;
|
|
643
|
|
644 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 client decoder");
|
|
645
|
|
646 state = st->state;
|
|
647 index = st->index;
|
|
648
|
|
649 while (rev->ready) {
|
|
650
|
|
651 /* XXX limit checks */
|
|
652 /* XXX buffer input */
|
|
653
|
|
654 n = c->recv(c, &v, 1);
|
|
655
|
|
656 if (n == NGX_ERROR || n == 0) {
|
|
657 goto failed;
|
|
658 }
|
|
659
|
|
660 if (n != 1) {
|
|
661 break;
|
|
662 }
|
|
663
|
|
664 switch (state) {
|
|
665
|
|
666 case sw_start:
|
|
667
|
|
668 if (v & 0x80) {
|
|
669 /* Header Acknowledgement */
|
|
670
|
|
671 index = v & 0x7f;
|
|
672
|
|
673 if (index != 0x7f) {
|
|
674 if (ngx_http_v3_ack_header(c, index) != NGX_OK) {
|
|
675 goto failed;
|
|
676 }
|
|
677
|
|
678 break;
|
|
679 }
|
|
680
|
|
681 index = 0;
|
|
682 state = sw_ack_header;
|
|
683 break;
|
|
684 }
|
|
685
|
|
686 if (v & 0x40) {
|
|
687 /* Stream Cancellation */
|
|
688
|
|
689 index = v & 0x3f;
|
|
690
|
|
691 if (index != 0x3f) {
|
|
692 if (ngx_http_v3_cancel_stream(c, index) != NGX_OK) {
|
|
693 goto failed;
|
|
694 }
|
|
695
|
|
696 break;
|
|
697 }
|
|
698
|
|
699 index = 0;
|
|
700 state = sw_cancel_stream;
|
|
701 break;
|
|
702 }
|
|
703
|
|
704 /* Insert Count Increment */
|
|
705
|
|
706 index = v & 0x3f;
|
|
707
|
|
708 if (index != 0x3f) {
|
|
709 if (ngx_http_v3_inc_insert_count(c, index) != NGX_OK) {
|
|
710 goto failed;
|
|
711 }
|
|
712
|
|
713 break;
|
|
714 }
|
|
715
|
|
716 index = 0;
|
|
717 state = sw_inc_insert_count;
|
|
718 break;
|
|
719
|
|
720 case sw_ack_header:
|
|
721
|
|
722 index = (index << 7) + (v & 0x7f);
|
|
723 if (v & 0x80) {
|
|
724 break;
|
|
725 }
|
|
726
|
|
727 index += 0x7f;
|
|
728
|
|
729 if (ngx_http_v3_ack_header(c, index) != NGX_OK) {
|
|
730 goto failed;
|
|
731 }
|
|
732
|
|
733 state = sw_start;
|
|
734 break;
|
|
735
|
|
736 case sw_cancel_stream:
|
|
737
|
|
738 index = (index << 7) + (v & 0x7f);
|
|
739 if (v & 0x80) {
|
|
740 break;
|
|
741 }
|
|
742
|
|
743 index += 0x3f;
|
|
744
|
|
745 if (ngx_http_v3_cancel_stream(c, index) != NGX_OK) {
|
|
746 goto failed;
|
|
747 }
|
|
748
|
|
749 state = sw_start;
|
|
750 break;
|
|
751
|
|
752 case sw_inc_insert_count:
|
|
753
|
|
754 index = (index << 7) + (v & 0x7f);
|
|
755 if (v & 0x80) {
|
|
756 break;
|
|
757 }
|
|
758
|
|
759 index += 0x3f;
|
|
760
|
|
761 if (ngx_http_v3_inc_insert_count(c, index) != NGX_OK) {
|
|
762 goto failed;
|
|
763 }
|
|
764
|
|
765 state = sw_start;
|
|
766 break;
|
|
767 }
|
|
768 }
|
|
769
|
|
770 st->state = state;
|
|
771 st->index = index;
|
|
772
|
|
773 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
774 goto failed;
|
|
775 }
|
|
776
|
|
777 return;
|
|
778
|
|
779 failed:
|
|
780
|
|
781 ngx_http_v3_close_uni_stream(c);
|
|
782 }
|
|
783
|
|
784
|
|
785 /* XXX async & buffered stream writes */
|
|
786
|
|
787 static ngx_connection_t *
|
|
788 ngx_http_v3_create_uni_stream(ngx_connection_t *c, ngx_uint_t type)
|
|
789 {
|
|
790 u_char buf[NGX_HTTP_V3_VARLEN_INT_LEN];
|
|
791 size_t n;
|
|
792 ngx_connection_t *sc;
|
|
793 ngx_pool_cleanup_t *cln;
|
|
794 ngx_http_v3_uni_stream_t *us;
|
|
795
|
|
796 sc = ngx_quic_create_uni_stream(c->qs->parent);
|
|
797 if (sc == NULL) {
|
|
798 return NULL;
|
|
799 }
|
|
800
|
|
801 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
802 "http3 create uni stream, type:%ui", type);
|
|
803
|
|
804 us = ngx_pcalloc(sc->pool, sizeof(ngx_http_v3_uni_stream_t));
|
|
805 if (us == NULL) {
|
|
806 goto failed;
|
|
807 }
|
|
808
|
|
809 us->signature = NGX_HTTP_V3_STREAM;
|
|
810 us->type = type;
|
|
811 sc->data = us;
|
|
812
|
|
813 cln = ngx_pool_cleanup_add(sc->pool, 0);
|
|
814 if (cln == NULL) {
|
|
815 goto failed;
|
|
816 }
|
|
817
|
|
818 cln->handler = ngx_http_v3_uni_stream_cleanup;
|
|
819 cln->data = sc;
|
|
820
|
|
821 n = (u_char *) ngx_http_v3_encode_varlen_int(buf, type) - buf;
|
|
822
|
|
823 if (sc->send(sc, buf, n) != (ssize_t) n) {
|
|
824 goto failed;
|
|
825 }
|
|
826
|
|
827 return sc;
|
|
828
|
|
829 failed:
|
|
830
|
|
831 ngx_http_v3_close_uni_stream(sc);
|
|
832
|
|
833 return NULL;
|
|
834 }
|
|
835
|
|
836
|
|
837 static ngx_connection_t *
|
|
838 ngx_http_v3_get_server_encoder(ngx_connection_t *c)
|
|
839 {
|
|
840 ngx_http_v3_connection_t *h3c;
|
|
841
|
|
842 h3c = c->qs->parent->data;
|
|
843
|
|
844 if (h3c->server_encoder == NULL) {
|
|
845 h3c->server_encoder = ngx_http_v3_create_uni_stream(c,
|
|
846 NGX_HTTP_V3_ENCODER_STREAM);
|
|
847 }
|
|
848
|
|
849 return h3c->server_encoder;
|
|
850 }
|
|
851
|
|
852
|
|
853 static ngx_connection_t *
|
|
854 ngx_http_v3_get_server_decoder(ngx_connection_t *c)
|
|
855 {
|
|
856 ngx_http_v3_connection_t *h3c;
|
|
857
|
|
858 h3c = c->qs->parent->data;
|
|
859
|
|
860 if (h3c->server_decoder == NULL) {
|
|
861 h3c->server_decoder = ngx_http_v3_create_uni_stream(c,
|
|
862 NGX_HTTP_V3_DECODER_STREAM);
|
|
863 }
|
|
864
|
|
865 return h3c->server_decoder;
|
|
866 }
|
|
867
|
|
868
|
|
869 ngx_int_t
|
|
870 ngx_http_v3_client_ref_insert(ngx_connection_t *c, ngx_uint_t dynamic,
|
|
871 ngx_uint_t index, ngx_str_t *value)
|
|
872 {
|
|
873 u_char *p, buf[NGX_HTTP_V3_PREFIX_INT_LEN * 2];
|
|
874 size_t n;
|
|
875 ngx_connection_t *ec;
|
|
876
|
|
877 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
878 "http3 client ref insert, %s[%ui] \"%V\"",
|
|
879 dynamic ? "dynamic" : "static", index, value);
|
|
880
|
|
881 ec = ngx_http_v3_get_server_encoder(c);
|
|
882 if (ec == NULL) {
|
|
883 return NGX_ERROR;
|
|
884 }
|
|
885
|
|
886 p = buf;
|
|
887
|
|
888 *p = (dynamic ? 0x80 : 0xc0);
|
|
889 p = (u_char *) ngx_http_v3_encode_prefix_int(p, index, 6);
|
|
890
|
|
891 /* XXX option for huffman? */
|
|
892 *p = 0;
|
|
893 p = (u_char *) ngx_http_v3_encode_prefix_int(p, value->len, 7);
|
|
894
|
|
895 n = p - buf;
|
|
896
|
|
897 if (ec->send(ec, buf, n) != (ssize_t) n) {
|
|
898 goto failed;
|
|
899 }
|
|
900
|
|
901 if (ec->send(ec, value->data, value->len) != (ssize_t) value->len) {
|
|
902 goto failed;
|
|
903 }
|
|
904
|
|
905 return NGX_OK;
|
|
906
|
|
907 failed:
|
|
908
|
|
909 ngx_http_v3_close_uni_stream(ec);
|
|
910
|
|
911 return NGX_ERROR;
|
|
912 }
|
|
913
|
|
914
|
|
915 ngx_int_t
|
|
916 ngx_http_v3_client_insert(ngx_connection_t *c, ngx_str_t *name,
|
|
917 ngx_str_t *value)
|
|
918 {
|
|
919 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN];
|
|
920 size_t n;
|
|
921 ngx_connection_t *ec;
|
|
922
|
|
923 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
924 "http3 client insert \"%V\":\"%V\"", name, value);
|
|
925
|
|
926 ec = ngx_http_v3_get_server_encoder(c);
|
|
927 if (ec == NULL) {
|
|
928 return NGX_ERROR;
|
|
929 }
|
|
930
|
|
931 /* XXX option for huffman? */
|
|
932 buf[0] = 0x40;
|
|
933 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, name->len, 5) - buf;
|
|
934
|
|
935 if (ec->send(ec, buf, n) != (ssize_t) n) {
|
|
936 goto failed;
|
|
937 }
|
|
938
|
|
939 if (ec->send(ec, name->data, name->len) != (ssize_t) name->len) {
|
|
940 goto failed;
|
|
941 }
|
|
942
|
|
943 /* XXX option for huffman? */
|
|
944 buf[0] = 0;
|
|
945 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, value->len, 7) - buf;
|
|
946
|
|
947 if (ec->send(ec, buf, n) != (ssize_t) n) {
|
|
948 goto failed;
|
|
949 }
|
|
950
|
|
951 if (ec->send(ec, value->data, value->len) != (ssize_t) value->len) {
|
|
952 goto failed;
|
|
953 }
|
|
954
|
|
955 return NGX_OK;
|
|
956
|
|
957 failed:
|
|
958
|
|
959 ngx_http_v3_close_uni_stream(ec);
|
|
960
|
|
961 return NGX_ERROR;
|
|
962 }
|
|
963
|
|
964
|
|
965 ngx_int_t
|
|
966 ngx_http_v3_client_set_capacity(ngx_connection_t *c, ngx_uint_t capacity)
|
|
967 {
|
|
968 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN];
|
|
969 size_t n;
|
|
970 ngx_connection_t *ec;
|
|
971
|
|
972 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
973 "http3 client set capacity %ui", capacity);
|
|
974
|
|
975 ec = ngx_http_v3_get_server_encoder(c);
|
|
976 if (ec == NULL) {
|
|
977 return NGX_ERROR;
|
|
978 }
|
|
979
|
|
980 buf[0] = 0x20;
|
|
981 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, capacity, 5) - buf;
|
|
982
|
|
983 if (ec->send(ec, buf, n) != (ssize_t) n) {
|
|
984 ngx_http_v3_close_uni_stream(ec);
|
|
985 return NGX_ERROR;
|
|
986 }
|
|
987
|
|
988 return NGX_OK;
|
|
989 }
|
|
990
|
|
991
|
|
992 ngx_int_t
|
|
993 ngx_http_v3_client_duplicate(ngx_connection_t *c, ngx_uint_t index)
|
|
994 {
|
|
995 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN];
|
|
996 size_t n;
|
|
997 ngx_connection_t *ec;
|
|
998
|
|
999 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1000 "http3 client duplicate %ui", index);
|
|
1001
|
|
1002 ec = ngx_http_v3_get_server_encoder(c);
|
|
1003 if (ec == NULL) {
|
|
1004 return NGX_ERROR;
|
|
1005 }
|
|
1006
|
|
1007 buf[0] = 0;
|
|
1008 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, index, 5) - buf;
|
|
1009
|
|
1010 if (ec->send(ec, buf, n) != (ssize_t) n) {
|
|
1011 ngx_http_v3_close_uni_stream(ec);
|
|
1012 return NGX_ERROR;
|
|
1013 }
|
|
1014
|
|
1015 return NGX_OK;
|
|
1016 }
|
|
1017
|
|
1018
|
|
1019 ngx_int_t
|
|
1020 ngx_http_v3_client_ack_header(ngx_connection_t *c, ngx_uint_t stream_id)
|
|
1021 {
|
|
1022 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN];
|
|
1023 size_t n;
|
|
1024 ngx_connection_t *dc;
|
|
1025
|
|
1026 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1027 "http3 client ack header %ui", stream_id);
|
|
1028
|
|
1029 dc = ngx_http_v3_get_server_decoder(c);
|
|
1030 if (dc == NULL) {
|
|
1031 return NGX_ERROR;
|
|
1032 }
|
|
1033
|
|
1034 buf[0] = 0x80;
|
|
1035 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, stream_id, 7) - buf;
|
|
1036
|
|
1037 if (dc->send(dc, buf, n) != (ssize_t) n) {
|
|
1038 ngx_http_v3_close_uni_stream(dc);
|
|
1039 return NGX_ERROR;
|
|
1040 }
|
|
1041
|
|
1042 return NGX_OK;
|
|
1043 }
|
|
1044
|
|
1045
|
|
1046 ngx_int_t
|
|
1047 ngx_http_v3_client_cancel_stream(ngx_connection_t *c, ngx_uint_t stream_id)
|
|
1048 {
|
|
1049 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN];
|
|
1050 size_t n;
|
|
1051 ngx_connection_t *dc;
|
|
1052
|
|
1053 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1054 "http3 client cancel stream %ui", stream_id);
|
|
1055
|
|
1056 dc = ngx_http_v3_get_server_decoder(c);
|
|
1057 if (dc == NULL) {
|
|
1058 return NGX_ERROR;
|
|
1059 }
|
|
1060
|
|
1061 buf[0] = 0x40;
|
|
1062 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, stream_id, 6) - buf;
|
|
1063
|
|
1064 if (dc->send(dc, buf, n) != (ssize_t) n) {
|
|
1065 ngx_http_v3_close_uni_stream(dc);
|
|
1066 return NGX_ERROR;
|
|
1067 }
|
|
1068
|
|
1069 return NGX_OK;
|
|
1070 }
|
|
1071
|
|
1072
|
|
1073 ngx_int_t
|
|
1074 ngx_http_v3_client_inc_insert_count(ngx_connection_t *c, ngx_uint_t inc)
|
|
1075 {
|
|
1076 u_char buf[NGX_HTTP_V3_PREFIX_INT_LEN];
|
|
1077 size_t n;
|
|
1078 ngx_connection_t *dc;
|
|
1079
|
|
1080 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1081 "http3 client increment insert count %ui", inc);
|
|
1082
|
|
1083 dc = ngx_http_v3_get_server_decoder(c);
|
|
1084 if (dc == NULL) {
|
|
1085 return NGX_ERROR;
|
|
1086 }
|
|
1087
|
|
1088 buf[0] = 0;
|
|
1089 n = (u_char *) ngx_http_v3_encode_prefix_int(buf, inc, 6) - buf;
|
|
1090
|
|
1091 if (dc->send(dc, buf, n) != (ssize_t) n) {
|
|
1092 ngx_http_v3_close_uni_stream(dc);
|
|
1093 return NGX_ERROR;
|
|
1094 }
|
|
1095
|
|
1096 return NGX_OK;
|
|
1097 }
|