Mercurial > hg > nginx
annotate src/http/v2/ngx_http_v2.h @ 9249:afd36b161859
Updated HTTP status code descriptions to match RFC 9110.
This patch changes the status codes and status pages served by
freenginx to use the wording from RFC 9110.
Exception for HTTP status code 413 "Request Entity Too Large",
which is "Content Too Large" in the RFC. In that case we would
lose information about what actually is too large, the request
or the response.
author | Michiel W. Beijen <mb@x14.nl> |
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date | Sun, 14 Apr 2024 12:23:40 +0200 |
parents | cdda286c0f1b |
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rev | line source |
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1 /* |
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2 * Copyright (C) Nginx, Inc. |
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3 * Copyright (C) Valentin V. Bartenev |
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4 */ |
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5 |
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6 |
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7 #ifndef _NGX_HTTP_V2_H_INCLUDED_ |
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8 #define _NGX_HTTP_V2_H_INCLUDED_ |
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9 |
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10 |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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13 #include <ngx_http.h> |
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14 |
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15 |
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16 #define NGX_HTTP_V2_ALPN_PROTO "\x02h2" |
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17 |
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18 #define NGX_HTTP_V2_STATE_BUFFER_SIZE 16 |
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19 |
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20 #define NGX_HTTP_V2_DEFAULT_FRAME_SIZE (1 << 14) |
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21 #define NGX_HTTP_V2_MAX_FRAME_SIZE ((1 << 24) - 1) |
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22 |
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23 #define NGX_HTTP_V2_INT_OCTETS 4 |
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24 #define NGX_HTTP_V2_MAX_FIELD \ |
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25 (127 + (1 << (NGX_HTTP_V2_INT_OCTETS - 1) * 7) - 1) |
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26 |
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27 #define NGX_HTTP_V2_FRAME_HEADER_SIZE 9 |
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28 |
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29 /* frame types */ |
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30 #define NGX_HTTP_V2_DATA_FRAME 0x0 |
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31 #define NGX_HTTP_V2_HEADERS_FRAME 0x1 |
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32 #define NGX_HTTP_V2_PRIORITY_FRAME 0x2 |
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33 #define NGX_HTTP_V2_RST_STREAM_FRAME 0x3 |
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34 #define NGX_HTTP_V2_SETTINGS_FRAME 0x4 |
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35 #define NGX_HTTP_V2_PUSH_PROMISE_FRAME 0x5 |
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36 #define NGX_HTTP_V2_PING_FRAME 0x6 |
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37 #define NGX_HTTP_V2_GOAWAY_FRAME 0x7 |
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38 #define NGX_HTTP_V2_WINDOW_UPDATE_FRAME 0x8 |
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39 #define NGX_HTTP_V2_CONTINUATION_FRAME 0x9 |
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40 |
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41 /* frame flags */ |
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42 #define NGX_HTTP_V2_NO_FLAG 0x00 |
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43 #define NGX_HTTP_V2_ACK_FLAG 0x01 |
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44 #define NGX_HTTP_V2_END_STREAM_FLAG 0x01 |
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45 #define NGX_HTTP_V2_END_HEADERS_FLAG 0x04 |
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46 #define NGX_HTTP_V2_PADDED_FLAG 0x08 |
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47 #define NGX_HTTP_V2_PRIORITY_FLAG 0x20 |
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48 |
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49 #define NGX_HTTP_V2_MAX_WINDOW ((1U << 31) - 1) |
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50 #define NGX_HTTP_V2_DEFAULT_WINDOW 65535 |
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51 |
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52 #define NGX_HTTP_V2_DEFAULT_WEIGHT 16 |
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53 |
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54 |
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55 typedef struct ngx_http_v2_connection_s ngx_http_v2_connection_t; |
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56 typedef struct ngx_http_v2_node_s ngx_http_v2_node_t; |
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57 typedef struct ngx_http_v2_out_frame_s ngx_http_v2_out_frame_t; |
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58 |
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59 |
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60 typedef u_char *(*ngx_http_v2_handler_pt) (ngx_http_v2_connection_t *h2c, |
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61 u_char *pos, u_char *end); |
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62 |
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63 |
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64 typedef struct { |
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65 ngx_flag_t enable; |
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66 size_t pool_size; |
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67 ngx_uint_t concurrent_streams; |
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68 size_t preread_size; |
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69 ngx_uint_t streams_index_mask; |
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70 } ngx_http_v2_srv_conf_t; |
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71 |
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72 |
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73 typedef struct { |
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74 ngx_str_t name; |
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75 ngx_str_t value; |
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76 } ngx_http_v2_header_t; |
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77 |
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78 |
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79 typedef struct { |
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80 ngx_uint_t sid; |
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81 size_t length; |
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82 size_t padding; |
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83 unsigned flags:8; |
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84 |
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85 unsigned incomplete:1; |
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86 unsigned keep_pool:1; |
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87 |
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88 /* HPACK */ |
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89 unsigned parse_name:1; |
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90 unsigned parse_value:1; |
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91 unsigned index:1; |
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92 ngx_http_v2_header_t header; |
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93 size_t header_limit; |
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94 u_char field_state; |
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95 u_char *field_start; |
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96 u_char *field_end; |
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97 size_t field_rest; |
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98 ngx_pool_t *pool; |
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99 |
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100 ngx_http_v2_stream_t *stream; |
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101 |
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102 u_char buffer[NGX_HTTP_V2_STATE_BUFFER_SIZE]; |
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103 size_t buffer_used; |
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104 ngx_http_v2_handler_pt handler; |
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105 } ngx_http_v2_state_t; |
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106 |
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107 |
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108 |
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109 typedef struct { |
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110 ngx_http_v2_header_t **entries; |
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111 |
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112 ngx_uint_t added; |
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113 ngx_uint_t deleted; |
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114 ngx_uint_t reused; |
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115 ngx_uint_t allocated; |
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116 |
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117 size_t size; |
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118 size_t free; |
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119 u_char *storage; |
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120 u_char *pos; |
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121 } ngx_http_v2_hpack_t; |
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122 |
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123 |
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124 struct ngx_http_v2_connection_s { |
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125 ngx_connection_t *connection; |
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126 ngx_http_connection_t *http_connection; |
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127 |
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128 off_t total_bytes; |
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129 off_t payload_bytes; |
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130 |
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131 ngx_uint_t processing; |
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133 ngx_uint_t idle; |
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HTTP/2: per-iteration stream handling limit.
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134 ngx_uint_t new_streams; |
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HTTP/2: per-iteration stream handling limit.
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135 ngx_uint_t refused_streams; |
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HTTP/2: limited number of PRIORITY frames.
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136 ngx_uint_t priority_limit; |
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137 |
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138 size_t send_window; |
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139 size_t recv_window; |
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140 size_t init_window; |
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141 |
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142 size_t frame_size; |
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143 |
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144 ngx_queue_t waiting; |
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145 |
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146 ngx_http_v2_state_t state; |
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147 |
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148 ngx_http_v2_hpack_t hpack; |
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149 |
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150 ngx_pool_t *pool; |
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151 |
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152 ngx_http_v2_out_frame_t *free_frames; |
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153 ngx_connection_t *free_fake_connections; |
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154 |
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155 ngx_http_v2_node_t **streams_index; |
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156 |
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157 ngx_http_v2_out_frame_t *last_out; |
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158 |
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159 ngx_queue_t dependencies; |
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160 ngx_queue_t closed; |
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161 |
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HTTP/2: fixed closed_nodes overflow (ticket #1708).
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162 ngx_uint_t closed_nodes; |
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163 ngx_uint_t last_sid; |
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164 |
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165 time_t lingering_time; |
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HTTP/2: lingering close after GOAWAY.
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166 |
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167 unsigned settings_ack:1; |
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HTTP/2: signal 0-byte HPACK's dynamic table size.
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168 unsigned table_update:1; |
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169 unsigned blocked:1; |
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HTTP/2: graceful shutdown of active connections (closes #1106).
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170 unsigned goaway:1; |
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171 }; |
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172 |
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173 |
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174 struct ngx_http_v2_node_s { |
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175 ngx_uint_t id; |
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176 ngx_http_v2_node_t *index; |
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177 ngx_http_v2_node_t *parent; |
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178 ngx_queue_t queue; |
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179 ngx_queue_t children; |
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180 ngx_queue_t reuse; |
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181 ngx_uint_t rank; |
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182 ngx_uint_t weight; |
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The HTTP/2 implementation (RFC 7240, 7241).
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183 double rel_weight; |
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184 ngx_http_v2_stream_t *stream; |
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185 }; |
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186 |
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187 |
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188 struct ngx_http_v2_stream_s { |
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189 ngx_http_request_t *request; |
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190 ngx_http_v2_connection_t *connection; |
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191 ngx_http_v2_node_t *node; |
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192 |
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193 ngx_uint_t queued; |
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194 |
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195 /* |
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196 * A change to SETTINGS_INITIAL_WINDOW_SIZE could cause the |
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The HTTP/2 implementation (RFC 7240, 7241).
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197 * send_window to become negative, hence it's signed. |
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198 */ |
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The HTTP/2 implementation (RFC 7240, 7241).
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199 ssize_t send_window; |
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200 size_t recv_window; |
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201 |
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parents:
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202 ngx_buf_t *preread; |
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203 |
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204 ngx_uint_t frames; |
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205 |
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206 ngx_http_v2_out_frame_t *free_frames; |
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HTTP/2: reused HEADERS and CONTINUATION frames buffers.
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|
207 ngx_chain_t *free_frame_headers; |
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208 ngx_chain_t *free_bufs; |
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209 |
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|
210 ngx_queue_t queue; |
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211 |
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|
212 ngx_array_t *cookies; |
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The HTTP/2 implementation (RFC 7240, 7241).
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213 |
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214 ngx_pool_t *pool; |
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HTTP/2: always use temporary pool for processing headers.
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215 |
6833
3834951e32ab
HTTP/2: fixed posted streams handling.
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|
216 unsigned waiting:1; |
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217 unsigned blocked:1; |
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|
218 unsigned exhausted:1; |
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|
219 unsigned in_closed:1; |
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The HTTP/2 implementation (RFC 7240, 7241).
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220 unsigned out_closed:1; |
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HTTP/2: sending RST_STREAM with NO_ERROR to discard request body.
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parents:
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|
221 unsigned rst_sent:1; |
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HTTP/2: rewritten handling of request body.
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222 unsigned no_flow_control:1; |
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HTTP/2: rewritten handling of request body.
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223 unsigned skip_data:1; |
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224 }; |
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225 |
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226 |
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227 struct ngx_http_v2_out_frame_s { |
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The HTTP/2 implementation (RFC 7240, 7241).
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228 ngx_http_v2_out_frame_t *next; |
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The HTTP/2 implementation (RFC 7240, 7241).
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229 ngx_chain_t *first; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
230 ngx_chain_t *last; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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231 ngx_int_t (*handler)(ngx_http_v2_connection_t *h2c, |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
232 ngx_http_v2_out_frame_t *frame); |
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|
233 |
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|
234 ngx_http_v2_stream_t *stream; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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235 size_t length; |
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236 |
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237 unsigned blocked:1; |
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238 unsigned fin:1; |
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239 }; |
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240 |
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241 |
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242 static ngx_inline void |
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243 ngx_http_v2_queue_frame(ngx_http_v2_connection_t *h2c, |
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244 ngx_http_v2_out_frame_t *frame) |
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245 { |
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246 ngx_http_v2_out_frame_t **out; |
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247 |
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248 for (out = &h2c->last_out; *out; out = &(*out)->next) { |
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249 |
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250 if ((*out)->blocked || (*out)->stream == NULL) { |
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251 break; |
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252 } |
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253 |
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254 if ((*out)->stream->node->rank < frame->stream->node->rank |
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255 || ((*out)->stream->node->rank == frame->stream->node->rank |
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256 && (*out)->stream->node->rel_weight |
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257 >= frame->stream->node->rel_weight)) |
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258 { |
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259 break; |
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260 } |
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261 } |
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262 |
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263 frame->next = *out; |
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264 *out = frame; |
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265 } |
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266 |
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267 |
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268 static ngx_inline void |
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269 ngx_http_v2_queue_blocked_frame(ngx_http_v2_connection_t *h2c, |
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270 ngx_http_v2_out_frame_t *frame) |
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271 { |
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272 ngx_http_v2_out_frame_t **out; |
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273 |
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274 for (out = &h2c->last_out; *out; out = &(*out)->next) { |
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275 |
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276 if ((*out)->blocked || (*out)->stream == NULL) { |
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277 break; |
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278 } |
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279 } |
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280 |
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281 frame->next = *out; |
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282 *out = frame; |
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283 } |
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284 |
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285 |
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286 static ngx_inline void |
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287 ngx_http_v2_queue_ordered_frame(ngx_http_v2_connection_t *h2c, |
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288 ngx_http_v2_out_frame_t *frame) |
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289 { |
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290 frame->next = h2c->last_out; |
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291 h2c->last_out = frame; |
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292 } |
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293 |
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294 |
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295 void ngx_http_v2_init(ngx_event_t *rev); |
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296 |
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297 ngx_int_t ngx_http_v2_read_request_body(ngx_http_request_t *r); |
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298 ngx_int_t ngx_http_v2_read_unbuffered_request_body(ngx_http_request_t *r); |
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299 |
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300 void ngx_http_v2_close_stream(ngx_http_v2_stream_t *stream, ngx_int_t rc); |
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301 |
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302 ngx_int_t ngx_http_v2_send_output_queue(ngx_http_v2_connection_t *h2c); |
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303 |
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304 |
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305 ngx_str_t *ngx_http_v2_get_static_name(ngx_uint_t index); |
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306 ngx_str_t *ngx_http_v2_get_static_value(ngx_uint_t index); |
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307 |
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308 ngx_int_t ngx_http_v2_get_indexed_header(ngx_http_v2_connection_t *h2c, |
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309 ngx_uint_t index, ngx_uint_t name_only); |
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310 ngx_int_t ngx_http_v2_add_header(ngx_http_v2_connection_t *h2c, |
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311 ngx_http_v2_header_t *header); |
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312 ngx_int_t ngx_http_v2_table_size(ngx_http_v2_connection_t *h2c, size_t size); |
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313 |
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314 |
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315 #define ngx_http_v2_prefix(bits) ((1 << (bits)) - 1) |
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316 |
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317 |
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318 #if (NGX_HAVE_NONALIGNED) |
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319 |
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320 #define ngx_http_v2_parse_uint16(p) ntohs(*(uint16_t *) (p)) |
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321 #define ngx_http_v2_parse_uint32(p) ntohl(*(uint32_t *) (p)) |
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322 |
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|
323 #else |
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|
324 |
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|
325 #define ngx_http_v2_parse_uint16(p) ((p)[0] << 8 | (p)[1]) |
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326 #define ngx_http_v2_parse_uint32(p) \ |
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327 ((uint32_t) (p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3]) |
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328 |
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329 #endif |
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|
330 |
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331 #define ngx_http_v2_parse_length(p) ((p) >> 8) |
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|
332 #define ngx_http_v2_parse_type(p) ((p) & 0xff) |
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|
333 #define ngx_http_v2_parse_sid(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff) |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
334 #define ngx_http_v2_parse_window(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff) |
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|
335 |
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|
336 |
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|
337 #define ngx_http_v2_write_uint16_aligned(p, s) \ |
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338 (*(uint16_t *) (p) = htons((uint16_t) (s)), (p) + sizeof(uint16_t)) |
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339 #define ngx_http_v2_write_uint32_aligned(p, s) \ |
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|
340 (*(uint32_t *) (p) = htonl((uint32_t) (s)), (p) + sizeof(uint32_t)) |
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341 |
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|
342 #if (NGX_HAVE_NONALIGNED) |
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parents:
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|
343 |
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|
344 #define ngx_http_v2_write_uint16 ngx_http_v2_write_uint16_aligned |
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345 #define ngx_http_v2_write_uint32 ngx_http_v2_write_uint32_aligned |
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346 |
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|
347 #else |
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348 |
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349 #define ngx_http_v2_write_uint16(p, s) \ |
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350 ((p)[0] = (u_char) ((s) >> 8), \ |
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351 (p)[1] = (u_char) (s), \ |
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352 (p) + sizeof(uint16_t)) |
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353 |
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354 #define ngx_http_v2_write_uint32(p, s) \ |
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355 ((p)[0] = (u_char) ((s) >> 24), \ |
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356 (p)[1] = (u_char) ((s) >> 16), \ |
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357 (p)[2] = (u_char) ((s) >> 8), \ |
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358 (p)[3] = (u_char) (s), \ |
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359 (p) + sizeof(uint32_t)) |
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360 |
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361 #endif |
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362 |
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363 #define ngx_http_v2_write_len_and_type(p, l, t) \ |
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364 ngx_http_v2_write_uint32_aligned(p, (l) << 8 | (t)) |
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365 |
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366 #define ngx_http_v2_write_sid ngx_http_v2_write_uint32 |
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367 |
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368 |
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369 #define ngx_http_v2_indexed(i) (128 + (i)) |
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370 #define ngx_http_v2_inc_indexed(i) (64 + (i)) |
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371 |
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372 #define ngx_http_v2_write_name(dst, src, len, tmp) \ |
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373 ngx_http_v2_string_encode(dst, src, len, tmp, 1) |
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374 #define ngx_http_v2_write_value(dst, src, len, tmp) \ |
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375 ngx_http_v2_string_encode(dst, src, len, tmp, 0) |
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376 |
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377 #define NGX_HTTP_V2_ENCODE_RAW 0 |
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378 #define NGX_HTTP_V2_ENCODE_HUFF 0x80 |
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379 |
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380 #define NGX_HTTP_V2_AUTHORITY_INDEX 1 |
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381 |
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382 #define NGX_HTTP_V2_METHOD_INDEX 2 |
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383 #define NGX_HTTP_V2_METHOD_GET_INDEX 2 |
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384 #define NGX_HTTP_V2_METHOD_POST_INDEX 3 |
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385 |
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386 #define NGX_HTTP_V2_PATH_INDEX 4 |
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387 #define NGX_HTTP_V2_PATH_ROOT_INDEX 4 |
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388 |
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389 #define NGX_HTTP_V2_SCHEME_HTTP_INDEX 6 |
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390 #define NGX_HTTP_V2_SCHEME_HTTPS_INDEX 7 |
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391 |
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392 #define NGX_HTTP_V2_STATUS_INDEX 8 |
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393 #define NGX_HTTP_V2_STATUS_200_INDEX 8 |
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394 #define NGX_HTTP_V2_STATUS_204_INDEX 9 |
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395 #define NGX_HTTP_V2_STATUS_206_INDEX 10 |
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396 #define NGX_HTTP_V2_STATUS_304_INDEX 11 |
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397 #define NGX_HTTP_V2_STATUS_400_INDEX 12 |
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398 #define NGX_HTTP_V2_STATUS_404_INDEX 13 |
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399 #define NGX_HTTP_V2_STATUS_500_INDEX 14 |
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400 |
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401 #define NGX_HTTP_V2_CONTENT_LENGTH_INDEX 28 |
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402 #define NGX_HTTP_V2_CONTENT_TYPE_INDEX 31 |
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403 #define NGX_HTTP_V2_DATE_INDEX 33 |
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404 #define NGX_HTTP_V2_LAST_MODIFIED_INDEX 44 |
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405 #define NGX_HTTP_V2_LOCATION_INDEX 46 |
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406 #define NGX_HTTP_V2_SERVER_INDEX 54 |
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407 #define NGX_HTTP_V2_VARY_INDEX 59 |
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408 |
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409 #define NGX_HTTP_V2_PREFACE_START "PRI * HTTP/2.0\r\n" |
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410 #define NGX_HTTP_V2_PREFACE_END "\r\nSM\r\n\r\n" |
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411 #define NGX_HTTP_V2_PREFACE NGX_HTTP_V2_PREFACE_START \ |
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412 NGX_HTTP_V2_PREFACE_END |
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413 |
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414 |
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415 u_char *ngx_http_v2_string_encode(u_char *dst, u_char *src, size_t len, |
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416 u_char *tmp, ngx_uint_t lower); |
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417 |
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418 |
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419 extern ngx_module_t ngx_http_v2_module; |
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420 |
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421 |
6246
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422 #endif /* _NGX_HTTP_V2_H_INCLUDED_ */ |