Mercurial > hg > nginx-quic

annotate src/event/quic/ngx_event_quic.h @ 8359:fc64ab301bad quic

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QUIC: connection shutdown. The function ngx_quic_shutdown_connection() waits until all non-cancelable streams are closed, and then closes the connection. In HTTP/3 cancelable streams are all unidirectional streams except push streams. The function is called from HTTP/3 when client reaches keepalive_requests.
author Roman Arutyunyan <arut@nginx.com>
date Mon, 15 Mar 2021 16:39:33 +0300
parents 12df02cc709f
children 9ce6d80df113
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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13
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14
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15 #ifndef NGX_QUIC_DRAFT_VERSION
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16 #define NGX_QUIC_DRAFT_VERSION 29
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17 #endif
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18
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19 #define NGX_QUIC_MAX_SHORT_HEADER 25 /* 1 flags + 20 dcid + 4 pn */
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20 #define NGX_QUIC_MAX_LONG_HEADER 56
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21 /* 1 flags + 4 version + 2 x (1 + 20) s/dcid + 4 pn + 4 len + token len */
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22
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23 #define NGX_QUIC_MAX_UDP_PAYLOAD_SIZE 65527
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24 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT 1252
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25 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT6 1232
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26
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27 #define NGX_QUIC_DEFAULT_ACK_DELAY_EXPONENT 3
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28 #define NGX_QUIC_DEFAULT_MAX_ACK_DELAY 25
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29 #define NGX_QUIC_DEFAULT_HOST_KEY_LEN 32
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30 #define NGX_QUIC_SR_KEY_LEN 32
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31 #define NGX_QUIC_AV_KEY_LEN 32
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32
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33 #define NGX_QUIC_RETRY_TOKEN_LIFETIME 3 /* seconds */
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34 #define NGX_QUIC_NEW_TOKEN_LIFETIME 600 /* seconds */
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35 #define NGX_QUIC_RETRY_BUFFER_SIZE 256
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36 /* 1 flags + 4 version + 3 x (1 + 20) s/o/dcid + itag + token(64) */
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37 #define NGX_QUIC_MAX_TOKEN_SIZE 64
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38 /* SHA-1(addr)=20 + sizeof(time_t) + retry(1) + odcid.len(1) + odcid */
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39
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40 /* quic-recovery, section 6.2.2, kInitialRtt */
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41 #define NGX_QUIC_INITIAL_RTT 333 /* ms */
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42
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43 /* quic-recovery, section 6.1.1, Packet Threshold */
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44 #define NGX_QUIC_PKT_THR 3 /* packets */
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45 /* quic-recovery, section 6.1.2, Time Threshold */
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46 #define NGX_QUIC_TIME_THR 1.125
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47 #define NGX_QUIC_TIME_GRANULARITY 1 /* ms */
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48
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49 #define NGX_QUIC_CC_MIN_INTERVAL 1000 /* 1s */
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50
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51 #define NGX_QUIC_MIN_INITIAL_SIZE 1200
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52
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53 #define NGX_QUIC_STREAM_SERVER_INITIATED 0x01
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54 #define NGX_QUIC_STREAM_UNIDIRECTIONAL 0x02
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55
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56 #define NGX_QUIC_STREAM_BUFSIZE 65536
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57
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58 #define NGX_QUIC_MAX_CID_LEN 20
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59 #define NGX_QUIC_SERVER_CID_LEN NGX_QUIC_MAX_CID_LEN
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60
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61 #define NGX_QUIC_SR_TOKEN_LEN 16
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62
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63 #define NGX_QUIC_MAX_SERVER_IDS 8
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64
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65 #define NGX_QUIC_BUFFER_SIZE 4096
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66
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67 #define ngx_quic_get_connection(c) ((ngx_quic_connection_t *)(c)->udp)
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68
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69
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70 typedef struct {
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71 /* configurable */
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72 ngx_msec_t max_idle_timeout;
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73 ngx_msec_t max_ack_delay;
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74
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75 size_t max_udp_payload_size;
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76 size_t initial_max_data;
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77 size_t initial_max_stream_data_bidi_local;
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78 size_t initial_max_stream_data_bidi_remote;
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79 size_t initial_max_stream_data_uni;
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80 ngx_uint_t initial_max_streams_bidi;
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81 ngx_uint_t initial_max_streams_uni;
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82 ngx_uint_t ack_delay_exponent;
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83 ngx_uint_t active_connection_id_limit;
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84 ngx_flag_t disable_active_migration;
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85 ngx_str_t original_dcid;
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86 ngx_str_t initial_scid;
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87 ngx_str_t retry_scid;
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88 u_char sr_token[NGX_QUIC_SR_TOKEN_LEN];
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89
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90 /* TODO */
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91 void *preferred_address;
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92 } ngx_quic_tp_t;
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93
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94
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95 typedef struct {
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96 ngx_ssl_t *ssl;
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97 ngx_quic_tp_t tp;
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98 ngx_flag_t retry;
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99 ngx_flag_t require_alpn;
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100 ngx_str_t host_key;
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101 u_char av_token_key[NGX_QUIC_AV_KEY_LEN];
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102 u_char sr_token_key[NGX_QUIC_SR_KEY_LEN];
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103 } ngx_quic_conf_t;
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104
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105
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106 typedef struct {
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107 uint64_t sent;
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108 uint64_t received;
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109 ngx_queue_t frames; /* reorder queue */
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110 size_t total; /* size of buffered data */
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111 } ngx_quic_frames_stream_t;
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112
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113
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114 struct ngx_quic_stream_s {
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115 ngx_rbtree_node_t node;
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116 ngx_connection_t *parent;
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117 ngx_connection_t *c;
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118 uint64_t id;
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119 uint64_t acked;
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120 uint64_t send_max_data;
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121 ngx_buf_t *b;
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122 ngx_quic_frames_stream_t fs;
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123 ngx_uint_t cancelable; /* unsigned cancelable:1; */
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124 };
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125
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126
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127 typedef struct ngx_quic_keys_s ngx_quic_keys_t;
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128
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129
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parents: 8100
diff changeset
130 void ngx_quic_run(ngx_connection_t *c, ngx_quic_conf_t *conf);
8013
455a8536eaa7 QUIC: limited the number of server-initiated streams.
Roman Arutyunyan <arut@nginx.com>
parents: 8001
diff changeset
131 ngx_connection_t *ngx_quic_open_stream(ngx_connection_t *c, ngx_uint_t bidi);
7953
e0f92f68e018 QUIC: Introduced ngx_quic_finalize_connection().
Roman Arutyunyan <arut@nginx.com>
parents: 7933
diff changeset
132 void ngx_quic_finalize_connection(ngx_connection_t *c, ngx_uint_t err,
e0f92f68e018 QUIC: Introduced ngx_quic_finalize_connection().
Roman Arutyunyan <arut@nginx.com>
parents: 7933
diff changeset
133 const char *reason);
8359
fc64ab301bad QUIC: connection shutdown.
Roman Arutyunyan <arut@nginx.com>
parents: 8323
diff changeset
134 void ngx_quic_shutdown_connection(ngx_connection_t *c, ngx_uint_t err,
fc64ab301bad QUIC: connection shutdown.
Roman Arutyunyan <arut@nginx.com>
parents: 8323
diff changeset
135 const char *reason);
8296
d710c457171c QUIC: added ability to reset a stream.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8287
diff changeset
136 ngx_int_t ngx_quic_reset_stream(ngx_connection_t *c, ngx_uint_t err);
8196
e0947c952d43 QUIC: multiple versions support in ALPN.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8195
diff changeset
137 uint32_t ngx_quic_version(ngx_connection_t *c);
8198
45db1b5c1706 QUIC: connection multiplexing per port.
Roman Arutyunyan <arut@nginx.com>
parents: 8196
diff changeset
138 ngx_int_t ngx_quic_get_packet_dcid(ngx_log_t *log, u_char *data, size_t len,
45db1b5c1706 QUIC: connection multiplexing per port.
Roman Arutyunyan <arut@nginx.com>
parents: 8196
diff changeset
139 ngx_str_t *dcid);
7633
5d91389e0fd3 Initial QUIC support in http.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
140
7687
69345a26ba69 Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents: 7681
diff changeset
141
69345a26ba69 Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents: 7681
diff changeset
142 /********************************* DEBUG *************************************/
69345a26ba69 Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents: 7681
diff changeset
143
7848
9d9531431c8c Removed outdated/incorrect comments and fixed style.
Vladimir Homutov <vl@nginx.com>
parents: 7842
diff changeset
144 /* #define NGX_QUIC_DEBUG_PACKETS */ /* dump packet contents */
9d9531431c8c Removed outdated/incorrect comments and fixed style.
Vladimir Homutov <vl@nginx.com>
parents: 7842
diff changeset
145 /* #define NGX_QUIC_DEBUG_FRAMES */ /* dump frames contents */
8241
2dfc5ef29973 QUIC: introduced QUIC buffers.
Roman Arutyunyan <arut@nginx.com>
parents: 8235
diff changeset
146 /* #define NGX_QUIC_DEBUG_ALLOC */ /* log frames and bufs alloc */
7848
9d9531431c8c Removed outdated/incorrect comments and fixed style.
Vladimir Homutov <vl@nginx.com>
parents: 7842
diff changeset
147 /* #define NGX_QUIC_DEBUG_CRYPTO */
7836
2f900ae486bc Debug cleanup.
Vladimir Homutov <vl@nginx.com>
parents: 7832
diff changeset
148
7633
5d91389e0fd3 Initial QUIC support in http.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
149 #endif /* _NGX_EVENT_QUIC_H_INCLUDED_ */