Mercurial > hg > nginx
annotate src/event/quic/ngx_event_quic_connection.h @ 8752:e19723c40d28 quic
QUIC: separate files for tokens related processing.
author | Vladimir Homutov <vl@nginx.com> |
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date | Tue, 13 Apr 2021 14:41:52 +0300 |
parents | bc910a5ec737 |
children | 46161c610919 |
rev | line source |
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QUIC: separate header for ngx_quic_connection_t.
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1 /* |
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2 * Copyright (C) Nginx, Inc. |
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3 */ |
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4 |
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5 |
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6 #ifndef _NGX_EVENT_QUIC_CONNECTION_H_INCLUDED_ |
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7 #define _NGX_EVENT_QUIC_CONNECTION_H_INCLUDED_ |
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8 |
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9 |
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10 #include <ngx_config.h> |
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11 #include <ngx_core.h> |
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12 #include <ngx_event.h> |
8747 | 13 |
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14 #include <ngx_event_quic_transport.h> |
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15 #include <ngx_event_quic_protection.h> |
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16 |
8747 | 17 typedef struct ngx_quic_connection_s ngx_quic_connection_t; |
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18 typedef struct ngx_quic_send_ctx_s ngx_quic_send_ctx_t; |
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19 |
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20 #include <ngx_event_quic_frames.h> |
8747 | 21 #include <ngx_event_quic_migration.h> |
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22 #include <ngx_event_quic_connid.h> |
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23 #include <ngx_event_quic_streams.h> |
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24 #include <ngx_event_quic_tokens.h> |
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25 #include <ngx_event_quic_ack.h> |
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26 #include <ngx_event_quic_output.h> |
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27 |
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28 |
8747 | 29 /* quic-recovery, section 6.2.2, kInitialRtt */ |
30 #define NGX_QUIC_INITIAL_RTT 333 /* ms */ | |
31 | |
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32 #define NGX_QUIC_UNSET_PN (uint64_t) -1 |
8747 | 33 |
34 #define NGX_QUIC_SEND_CTX_LAST (NGX_QUIC_ENCRYPTION_LAST - 1) | |
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35 |
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36 /* 0-RTT and 1-RTT data exist in the same packet number space, |
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37 * so we have 3 packet number spaces: |
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38 * |
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39 * 0 - Initial |
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40 * 1 - Handshake |
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41 * 2 - 0-RTT and 1-RTT |
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42 */ |
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43 #define ngx_quic_get_send_ctx(qc, level) \ |
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44 ((level) == ssl_encryption_initial) ? &((qc)->send_ctx[0]) \ |
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45 : (((level) == ssl_encryption_handshake) ? &((qc)->send_ctx[1]) \ |
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46 : &((qc)->send_ctx[2])) |
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47 |
8747 | 48 #define ngx_quic_get_connection(c) \ |
49 (((c)->udp) ? (((ngx_quic_server_id_t *)((c)->udp))->quic) : NULL) | |
50 | |
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51 |
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52 typedef struct { |
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53 ngx_queue_t queue; |
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54 uint64_t seqnum; |
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55 size_t len; |
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56 u_char id[NGX_QUIC_CID_LEN_MAX]; |
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57 u_char sr_token[NGX_QUIC_SR_TOKEN_LEN]; |
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58 } ngx_quic_client_id_t; |
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59 |
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60 |
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61 typedef struct { |
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62 ngx_udp_connection_t udp; |
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63 ngx_quic_connection_t *quic; |
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64 ngx_queue_t queue; |
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65 uint64_t seqnum; |
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66 size_t len; |
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67 u_char id[NGX_QUIC_CID_LEN_MAX]; |
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68 } ngx_quic_server_id_t; |
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69 |
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70 |
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71 typedef struct { |
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72 ngx_rbtree_t tree; |
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73 ngx_rbtree_node_t sentinel; |
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74 |
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75 uint64_t received; |
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76 uint64_t sent; |
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77 uint64_t recv_max_data; |
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78 uint64_t send_max_data; |
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79 |
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80 uint64_t server_max_streams_uni; |
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81 uint64_t server_max_streams_bidi; |
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82 uint64_t server_streams_uni; |
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83 uint64_t server_streams_bidi; |
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84 |
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85 uint64_t client_max_streams_uni; |
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86 uint64_t client_max_streams_bidi; |
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87 uint64_t client_streams_uni; |
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88 uint64_t client_streams_bidi; |
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89 } ngx_quic_streams_t; |
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90 |
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91 |
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92 typedef struct { |
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93 size_t in_flight; |
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94 size_t window; |
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95 size_t ssthresh; |
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96 ngx_msec_t recovery_start; |
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97 } ngx_quic_congestion_t; |
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98 |
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99 |
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100 /* |
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101 * 12.3. Packet Numbers |
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102 * |
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103 * Conceptually, a packet number space is the context in which a packet |
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104 * can be processed and acknowledged. Initial packets can only be sent |
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105 * with Initial packet protection keys and acknowledged in packets which |
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106 * are also Initial packets. |
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107 */ |
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108 struct ngx_quic_send_ctx_s { |
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109 enum ssl_encryption_level_t level; |
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110 |
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111 uint64_t pnum; /* to be sent */ |
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112 uint64_t largest_ack; /* received from peer */ |
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113 uint64_t largest_pn; /* received from peer */ |
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114 |
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115 ngx_queue_t frames; |
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116 ngx_queue_t sent; |
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117 |
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118 uint64_t pending_ack; /* non sent ack-eliciting */ |
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119 uint64_t largest_range; |
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120 uint64_t first_range; |
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121 ngx_msec_t largest_received; |
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122 ngx_msec_t ack_delay_start; |
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123 ngx_uint_t nranges; |
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124 ngx_quic_ack_range_t ranges[NGX_QUIC_MAX_RANGES]; |
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125 ngx_uint_t send_ack; |
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126 }; |
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127 |
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128 |
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129 struct ngx_quic_connection_s { |
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130 uint32_t version; |
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131 |
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132 ngx_str_t scid; /* initial client ID */ |
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133 ngx_str_t dcid; /* server (our own) ID */ |
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134 ngx_str_t odcid; /* original server ID */ |
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135 |
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136 struct sockaddr *sockaddr; |
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137 socklen_t socklen; |
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138 |
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139 ngx_queue_t client_ids; |
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140 ngx_queue_t server_ids; |
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141 ngx_queue_t free_client_ids; |
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142 ngx_queue_t free_server_ids; |
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143 ngx_uint_t nclient_ids; |
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144 ngx_uint_t nserver_ids; |
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145 uint64_t max_retired_seqnum; |
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146 uint64_t client_seqnum; |
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147 uint64_t server_seqnum; |
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148 |
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149 ngx_uint_t client_tp_done; |
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150 ngx_quic_tp_t tp; |
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151 ngx_quic_tp_t ctp; |
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152 |
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153 ngx_quic_send_ctx_t send_ctx[NGX_QUIC_SEND_CTX_LAST]; |
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154 |
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155 ngx_quic_frames_stream_t crypto[NGX_QUIC_ENCRYPTION_LAST]; |
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156 |
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157 ngx_quic_keys_t *keys; |
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158 |
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159 ngx_quic_conf_t *conf; |
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160 |
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161 ngx_event_t push; |
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162 ngx_event_t pto; |
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163 ngx_event_t close; |
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164 ngx_msec_t last_cc; |
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165 |
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166 ngx_msec_t latest_rtt; |
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167 ngx_msec_t avg_rtt; |
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168 ngx_msec_t min_rtt; |
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169 ngx_msec_t rttvar; |
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170 |
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171 ngx_uint_t pto_count; |
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172 |
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173 ngx_queue_t free_frames; |
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174 ngx_chain_t *free_bufs; |
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175 ngx_buf_t *free_shadow_bufs; |
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176 |
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177 #ifdef NGX_QUIC_DEBUG_ALLOC |
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178 ngx_uint_t nframes; |
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179 ngx_uint_t nbufs; |
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180 #endif |
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181 |
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182 ngx_quic_streams_t streams; |
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183 ngx_quic_congestion_t congestion; |
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184 off_t received; |
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185 |
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186 ngx_uint_t error; |
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187 enum ssl_encryption_level_t error_level; |
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188 ngx_uint_t error_ftype; |
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189 const char *error_reason; |
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190 |
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191 ngx_uint_t shutdown_code; |
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192 const char *shutdown_reason; |
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193 |
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194 unsigned error_app:1; |
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195 unsigned send_timer_set:1; |
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196 unsigned closing:1; |
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197 unsigned shutdown:1; |
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198 unsigned draining:1; |
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199 unsigned key_phase:1; |
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200 unsigned validated:1; |
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201 }; |
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202 |
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203 |
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204 void ngx_quic_close_connection(ngx_connection_t *c, ngx_int_t rc); |
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205 void ngx_quic_shutdown_quic(ngx_connection_t *c); |
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206 |
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207 |
8747 | 208 /********************************* DEBUG *************************************/ |
209 | |
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210 #if (NGX_DEBUG) |
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211 void ngx_quic_connstate_dbg(ngx_connection_t *c); |
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212 #else |
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213 #define ngx_quic_connstate_dbg(c) |
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214 #endif |
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215 |
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216 |
8747 | 217 /* #define NGX_QUIC_DEBUG_PACKETS */ /* dump packet contents */ |
218 /* #define NGX_QUIC_DEBUG_FRAMES */ /* dump frames contents */ | |
219 /* #define NGX_QUIC_DEBUG_ALLOC */ /* log frames and bufs alloc */ | |
220 /* #define NGX_QUIC_DEBUG_CRYPTO */ | |
221 | |
222 #endif /* _NGX_EVENT_QUIC_CONNECTION_H_INCLUDED_ */ |