Mercurial > hg > nginx-quic
annotate src/event/quic/ngx_event_quic_connection.h @ 8413:46161c610919 quic
QUIC: separate files for SSL library interfaces.
author | Vladimir Homutov <vl@nginx.com> |
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date | Wed, 14 Apr 2021 14:47:04 +0300 |
parents | e19723c40d28 |
children | 915c2f7092ed |
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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> |
8407 | 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 |
8407 | 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> |
8407 | 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_ssl.h> |
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25 #include <ngx_event_quic_tokens.h> |
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26 #include <ngx_event_quic_ack.h> |
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27 #include <ngx_event_quic_output.h> |
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28 |
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29 |
8407 | 30 /* quic-recovery, section 6.2.2, kInitialRtt */ |
31 #define NGX_QUIC_INITIAL_RTT 333 /* ms */ | |
32 | |
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33 #define NGX_QUIC_UNSET_PN (uint64_t) -1 |
8407 | 34 |
35 #define NGX_QUIC_SEND_CTX_LAST (NGX_QUIC_ENCRYPTION_LAST - 1) | |
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36 |
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37 /* 0-RTT and 1-RTT data exist in the same packet number space, |
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38 * so we have 3 packet number spaces: |
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39 * |
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40 * 0 - Initial |
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41 * 1 - Handshake |
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42 * 2 - 0-RTT and 1-RTT |
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43 */ |
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44 #define ngx_quic_get_send_ctx(qc, level) \ |
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45 ((level) == ssl_encryption_initial) ? &((qc)->send_ctx[0]) \ |
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46 : (((level) == ssl_encryption_handshake) ? &((qc)->send_ctx[1]) \ |
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47 : &((qc)->send_ctx[2])) |
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48 |
8407 | 49 #define ngx_quic_get_connection(c) \ |
50 (((c)->udp) ? (((ngx_quic_server_id_t *)((c)->udp))->quic) : NULL) | |
51 | |
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52 |
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53 typedef struct { |
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54 ngx_queue_t queue; |
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55 uint64_t seqnum; |
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56 size_t len; |
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57 u_char id[NGX_QUIC_CID_LEN_MAX]; |
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58 u_char sr_token[NGX_QUIC_SR_TOKEN_LEN]; |
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59 } ngx_quic_client_id_t; |
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60 |
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61 |
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62 typedef struct { |
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63 ngx_udp_connection_t udp; |
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64 ngx_quic_connection_t *quic; |
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65 ngx_queue_t queue; |
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66 uint64_t seqnum; |
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67 size_t len; |
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68 u_char id[NGX_QUIC_CID_LEN_MAX]; |
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69 } ngx_quic_server_id_t; |
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70 |
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71 |
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72 typedef struct { |
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73 ngx_rbtree_t tree; |
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74 ngx_rbtree_node_t sentinel; |
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75 |
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76 uint64_t received; |
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77 uint64_t sent; |
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78 uint64_t recv_max_data; |
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79 uint64_t send_max_data; |
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80 |
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81 uint64_t server_max_streams_uni; |
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82 uint64_t server_max_streams_bidi; |
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83 uint64_t server_streams_uni; |
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84 uint64_t server_streams_bidi; |
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85 |
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86 uint64_t client_max_streams_uni; |
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87 uint64_t client_max_streams_bidi; |
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88 uint64_t client_streams_uni; |
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89 uint64_t client_streams_bidi; |
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90 } ngx_quic_streams_t; |
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91 |
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92 |
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93 typedef struct { |
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94 size_t in_flight; |
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95 size_t window; |
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96 size_t ssthresh; |
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97 ngx_msec_t recovery_start; |
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98 } ngx_quic_congestion_t; |
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99 |
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100 |
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101 /* |
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102 * 12.3. Packet Numbers |
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103 * |
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104 * Conceptually, a packet number space is the context in which a packet |
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105 * can be processed and acknowledged. Initial packets can only be sent |
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106 * with Initial packet protection keys and acknowledged in packets which |
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107 * are also Initial packets. |
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108 */ |
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109 struct ngx_quic_send_ctx_s { |
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110 enum ssl_encryption_level_t level; |
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111 |
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112 uint64_t pnum; /* to be sent */ |
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113 uint64_t largest_ack; /* received from peer */ |
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114 uint64_t largest_pn; /* received from peer */ |
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115 |
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116 ngx_queue_t frames; |
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117 ngx_queue_t sent; |
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118 |
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119 uint64_t pending_ack; /* non sent ack-eliciting */ |
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120 uint64_t largest_range; |
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121 uint64_t first_range; |
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122 ngx_msec_t largest_received; |
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123 ngx_msec_t ack_delay_start; |
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124 ngx_uint_t nranges; |
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125 ngx_quic_ack_range_t ranges[NGX_QUIC_MAX_RANGES]; |
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126 ngx_uint_t send_ack; |
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127 }; |
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128 |
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129 |
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130 struct ngx_quic_connection_s { |
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131 uint32_t version; |
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132 |
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133 ngx_str_t scid; /* initial client ID */ |
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134 ngx_str_t dcid; /* server (our own) ID */ |
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135 ngx_str_t odcid; /* original server ID */ |
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136 |
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137 struct sockaddr *sockaddr; |
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138 socklen_t socklen; |
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139 |
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140 ngx_queue_t client_ids; |
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141 ngx_queue_t server_ids; |
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142 ngx_queue_t free_client_ids; |
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143 ngx_queue_t free_server_ids; |
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144 ngx_uint_t nclient_ids; |
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145 ngx_uint_t nserver_ids; |
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146 uint64_t max_retired_seqnum; |
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147 uint64_t client_seqnum; |
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148 uint64_t server_seqnum; |
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149 |
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150 ngx_uint_t client_tp_done; |
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151 ngx_quic_tp_t tp; |
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152 ngx_quic_tp_t ctp; |
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153 |
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154 ngx_quic_send_ctx_t send_ctx[NGX_QUIC_SEND_CTX_LAST]; |
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155 |
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156 ngx_quic_frames_stream_t crypto[NGX_QUIC_ENCRYPTION_LAST]; |
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157 |
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158 ngx_quic_keys_t *keys; |
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159 |
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160 ngx_quic_conf_t *conf; |
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161 |
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162 ngx_event_t push; |
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163 ngx_event_t pto; |
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164 ngx_event_t close; |
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165 ngx_msec_t last_cc; |
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166 |
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167 ngx_msec_t latest_rtt; |
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168 ngx_msec_t avg_rtt; |
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169 ngx_msec_t min_rtt; |
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170 ngx_msec_t rttvar; |
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171 |
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172 ngx_uint_t pto_count; |
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173 |
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174 ngx_queue_t free_frames; |
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175 ngx_chain_t *free_bufs; |
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176 ngx_buf_t *free_shadow_bufs; |
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177 |
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178 #ifdef NGX_QUIC_DEBUG_ALLOC |
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179 ngx_uint_t nframes; |
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180 ngx_uint_t nbufs; |
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181 #endif |
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182 |
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183 ngx_quic_streams_t streams; |
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184 ngx_quic_congestion_t congestion; |
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185 off_t received; |
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186 |
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187 ngx_uint_t error; |
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188 enum ssl_encryption_level_t error_level; |
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189 ngx_uint_t error_ftype; |
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190 const char *error_reason; |
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191 |
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192 ngx_uint_t shutdown_code; |
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193 const char *shutdown_reason; |
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194 |
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195 unsigned error_app:1; |
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196 unsigned send_timer_set:1; |
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197 unsigned closing:1; |
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198 unsigned shutdown:1; |
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199 unsigned draining:1; |
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200 unsigned key_phase:1; |
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201 unsigned validated:1; |
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202 }; |
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203 |
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204 |
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205 ngx_int_t ngx_quic_apply_transport_params(ngx_connection_t *c, |
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206 ngx_quic_tp_t *ctp); |
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207 void ngx_quic_discard_ctx(ngx_connection_t *c, |
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208 enum ssl_encryption_level_t level); |
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209 void ngx_quic_close_connection(ngx_connection_t *c, ngx_int_t rc); |
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210 void ngx_quic_shutdown_quic(ngx_connection_t *c); |
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211 |
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212 |
8407 | 213 /********************************* DEBUG *************************************/ |
214 | |
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215 #if (NGX_DEBUG) |
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216 void ngx_quic_connstate_dbg(ngx_connection_t *c); |
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217 #else |
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218 #define ngx_quic_connstate_dbg(c) |
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219 #endif |
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220 |
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221 |
8407 | 222 /* #define NGX_QUIC_DEBUG_PACKETS */ /* dump packet contents */ |
223 /* #define NGX_QUIC_DEBUG_FRAMES */ /* dump frames contents */ | |
224 /* #define NGX_QUIC_DEBUG_ALLOC */ /* log frames and bufs alloc */ | |
225 /* #define NGX_QUIC_DEBUG_CRYPTO */ | |
226 | |
227 #endif /* _NGX_EVENT_QUIC_CONNECTION_H_INCLUDED_ */ |