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annotate src/event/ngx_event_quic.h @ 8480:f537f99b86ee quic

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QUIC: do not verify the selected ALPN protocol. The right protocol is selected by the HTTP code. In the QUIC code only verify that some protocol was selected and trigger an error otherwise.
author Roman Arutyunyan <arut@nginx.com>
date Sat, 18 Jul 2020 00:08:04 +0300
parents f9fbeb4ee0de
children 0d2b2664b41c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 */
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7 #ifndef _NGX_EVENT_QUIC_H_INCLUDED_
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8 #define _NGX_EVENT_QUIC_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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14
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15 /* Supported drafts: 27, 28 */
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16 #ifndef NGX_QUIC_DRAFT_VERSION
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17 #define NGX_QUIC_DRAFT_VERSION 27
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18 #endif
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19 #define NGX_QUIC_VERSION (0xff000000 + NGX_QUIC_DRAFT_VERSION)
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20
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21 #define NGX_QUIC_MAX_SHORT_HEADER 25 /* 1 flags + 20 dcid + 4 pn */
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22 #define NGX_QUIC_MAX_LONG_HEADER 56
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23 /* 1 flags + 4 version + 2 x (1 + 20) s/dcid + 4 pn + 4 len + token len */
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24
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25 #define NGX_QUIC_MAX_UDP_PAYLOAD_SIZE 65527
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26 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT 1252
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27 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT6 1232
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28
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29 #define NGX_QUIC_DEFAULT_ACK_DELAY_EXPONENT 3
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30 #define NGX_QUIC_DEFAULT_MAX_ACK_DELAY 25
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31
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32 #define NGX_QUIC_RETRY_TIMEOUT 3000
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33 #define NGX_QUIC_RETRY_LIFETIME 30000
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34 #define NGX_QUIC_RETRY_BUFFER_SIZE 128
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35 /* 1 flags + 4 version + 3 x (1 + 20) s/o/dcid + itag + token(44) */
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36 #define NGX_QUIC_MAX_TOKEN_SIZE 32
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37 /* sizeof(struct in6_addr) + sizeof(ngx_msec_t) up to AES-256 block size */
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38
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39 /* quic-recovery, section 6.2.2, kInitialRtt */
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40 #define NGX_QUIC_INITIAL_RTT 333 /* ms */
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41
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42 /* quic-recovery, section 6.1.1, Packet Threshold */
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43 #define NGX_QUIC_PKT_THR 3 /* packets */
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44 /* quic-recovery, section 6.1.2, Time Threshold */
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45 #define NGX_QUIC_TIME_THR 1.125
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46 #define NGX_QUIC_TIME_GRANULARITY 1 /* ms */
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47
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48 #define NGX_QUIC_CC_MIN_INTERVAL 1000 /* 1s */
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49
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50 #define NGX_QUIC_MIN_INITIAL_SIZE 1200
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51
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52 /* if we have so much data, send immediately */
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53 /* TODO: configurable ? */
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54 #define NGX_QUIC_MIN_DATA_NODELAY 512 /* bytes */
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55
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56 #define NGX_QUIC_STREAM_SERVER_INITIATED 0x01
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57 #define NGX_QUIC_STREAM_UNIDIRECTIONAL 0x02
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58
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59 #define NGX_QUIC_STREAM_BUFSIZE 65536
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60
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61
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62 typedef struct {
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63 /* configurable */
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64 ngx_msec_t max_idle_timeout;
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65 ngx_msec_t max_ack_delay;
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66
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67 size_t max_udp_payload_size;
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68 size_t initial_max_data;
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69 size_t initial_max_stream_data_bidi_local;
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70 size_t initial_max_stream_data_bidi_remote;
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71 size_t initial_max_stream_data_uni;
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72 ngx_uint_t initial_max_streams_bidi;
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73 ngx_uint_t initial_max_streams_uni;
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74 ngx_uint_t ack_delay_exponent;
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75 ngx_uint_t disable_active_migration;
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76 ngx_uint_t active_connection_id_limit;
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77 ngx_str_t original_dcid;
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78 ngx_str_t initial_scid;
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79 ngx_str_t retry_scid;
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80
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81 ngx_flag_t retry;
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82 u_char token_key[32]; /* AES 256 */
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83
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84 /* TODO */
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85 u_char stateless_reset_token[16];
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86 void *preferred_address;
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87 } ngx_quic_tp_t;
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88
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89
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90 typedef struct {
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91 uint64_t sent;
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92 uint64_t received;
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93 ngx_queue_t frames; /* reorder queue */
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94 size_t total; /* size of buffered data */
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95 } ngx_quic_frames_stream_t;
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96
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97
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98 struct ngx_quic_stream_s {
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99 ngx_rbtree_node_t node;
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100 ngx_connection_t *parent;
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101 ngx_connection_t *c;
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102 uint64_t id;
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103 uint64_t acked;
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104 uint64_t send_max_data;
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105 ngx_buf_t *b;
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106 ngx_quic_frames_stream_t fs;
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107 };
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108
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109
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110 void ngx_quic_run(ngx_connection_t *c, ngx_ssl_t *ssl, ngx_quic_tp_t *tp,
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111 ngx_connection_handler_pt handler);
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112 ngx_connection_t *ngx_quic_create_uni_stream(ngx_connection_t *c);
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113 void ngx_quic_finalize_connection(ngx_connection_t *c, ngx_uint_t err,
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114 const char *reason);
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115
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116
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117 /********************************* DEBUG *************************************/
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118
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119 /* #define NGX_QUIC_DEBUG_PACKETS */ /* dump packet contents */
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120 /* #define NGX_QUIC_DEBUG_FRAMES */ /* dump frames contents */
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121 /* #define NGX_QUIC_DEBUG_FRAMES_ALLOC */ /* log frames alloc/reuse/free */
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122 /* #define NGX_QUIC_DEBUG_CRYPTO */
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123
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124 #if (NGX_DEBUG)
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125
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126 #define ngx_quic_hexdump(log, label, data, len) \
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127 do { \
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128 ngx_int_t m; \
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129 u_char buf[2048]; \
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130 \
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131 if (log->log_level & NGX_LOG_DEBUG_EVENT) { \
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parents: 8215
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132 m = ngx_hex_dump(buf, (u_char *) data, ngx_min(len, 1024)) - buf; \
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133 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, log, 0, \
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134 label " len:%uz data:%*s%s", \
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parents: 8359
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135 len, m, buf, len < 2048 ? "" : "..."); \
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parents: 8215
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136 } \
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Vladimir Homutov <vl@nginx.com>
parents: 8215
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137 } while (0)
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138
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139 #else
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140
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141 #define ngx_quic_hexdump(log, fmt, data, len)
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142
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parents: 8215
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143 #endif
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parents: 8215
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144
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Sergey Kandaurov <pluknet@nginx.com>
parents:
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145 #endif /* _NGX_EVENT_QUIC_H_INCLUDED_ */