Mercurial > hg > nginx-quic

annotate src/event/quic/ngx_event_quic_connection.h @ 8684:4b2d259bdadd quic

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QUIC: connections with wrong ALPN protocols are now rejected. Previously, it was not enforced in the stream module. Now, since b9e02e9b2f1d it is possible to specify protocols. Since ALPN is always required, the 'require_alpn' setting is now obsolete.
author Vladimir Homutov <vl@nginx.com>
date Wed, 03 Nov 2021 13:36:21 +0300
parents 404de224517e
children 1d7bf9778328
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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>
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13
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14
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15 /* #define NGX_QUIC_DEBUG_PACKETS */ /* dump packet contents */
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16 /* #define NGX_QUIC_DEBUG_FRAMES */ /* dump frames contents */
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17 /* #define NGX_QUIC_DEBUG_ALLOC */ /* log frames and bufs alloc */
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18 /* #define NGX_QUIC_DEBUG_CRYPTO */
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19
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20 typedef struct ngx_quic_connection_s ngx_quic_connection_t;
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21 typedef struct ngx_quic_server_id_s ngx_quic_server_id_t;
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22 typedef struct ngx_quic_client_id_s ngx_quic_client_id_t;
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23 typedef struct ngx_quic_send_ctx_s ngx_quic_send_ctx_t;
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24 typedef struct ngx_quic_socket_s ngx_quic_socket_t;
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25 typedef struct ngx_quic_path_s ngx_quic_path_t;
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26 typedef struct ngx_quic_keys_s ngx_quic_keys_t;
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27
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28 #include <ngx_event_quic_transport.h>
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29 #include <ngx_event_quic_protection.h>
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30 #include <ngx_event_quic_frames.h>
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31 #include <ngx_event_quic_migration.h>
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32 #include <ngx_event_quic_connid.h>
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33 #include <ngx_event_quic_streams.h>
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34 #include <ngx_event_quic_ssl.h>
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35 #include <ngx_event_quic_tokens.h>
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36 #include <ngx_event_quic_ack.h>
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37 #include <ngx_event_quic_output.h>
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38 #include <ngx_event_quic_socket.h>
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40
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41 /* RFC 9002, 6.2.2. Handshakes and New Paths: kInitialRtt */
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42 #define NGX_QUIC_INITIAL_RTT 333 /* ms */
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43
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44 #define NGX_QUIC_UNSET_PN (uint64_t) -1
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45
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46 #define NGX_QUIC_SEND_CTX_LAST (NGX_QUIC_ENCRYPTION_LAST - 1)
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47
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48 /* 0-RTT and 1-RTT data exist in the same packet number space,
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49 * so we have 3 packet number spaces:
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50 *
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51 * 0 - Initial
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52 * 1 - Handshake
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53 * 2 - 0-RTT and 1-RTT
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54 */
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55 #define ngx_quic_get_send_ctx(qc, level) \
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56 ((level) == ssl_encryption_initial) ? &((qc)->send_ctx[0]) \
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57 : (((level) == ssl_encryption_handshake) ? &((qc)->send_ctx[1]) \
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58 : &((qc)->send_ctx[2]))
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59
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60 #define ngx_quic_get_connection(c) \
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61 (((c)->udp) ? (((ngx_quic_socket_t *)((c)->udp))->quic) : NULL)
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62
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63 #define ngx_quic_get_socket(c) ((ngx_quic_socket_t *)((c)->udp))
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64
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65
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66 struct ngx_quic_client_id_s {
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67 ngx_queue_t queue;
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68 uint64_t seqnum;
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69 size_t len;
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70 u_char id[NGX_QUIC_CID_LEN_MAX];
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71 u_char sr_token[NGX_QUIC_SR_TOKEN_LEN];
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72 ngx_uint_t refcnt;
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73 };
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74
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75
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76 struct ngx_quic_server_id_s {
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77 uint64_t seqnum;
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78 size_t len;
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79 u_char id[NGX_QUIC_CID_LEN_MAX];
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80 };
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81
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82
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83 struct ngx_quic_path_s {
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84 ngx_queue_t queue;
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85 struct sockaddr *sockaddr;
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86 socklen_t socklen;
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87 ngx_uint_t state;
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88 ngx_msec_t expires;
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89 ngx_uint_t tries;
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90 off_t sent;
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91 off_t received;
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92 u_char challenge1[8];
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93 u_char challenge2[8];
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94 ngx_uint_t refcnt;
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95 uint64_t seqnum;
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96 time_t validated_at;
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97 ngx_str_t addr_text;
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98 u_char text[NGX_SOCKADDR_STRLEN];
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99 };
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100
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101
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102 struct ngx_quic_socket_s {
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103 ngx_udp_connection_t udp;
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104 ngx_quic_connection_t *quic;
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105 ngx_queue_t queue;
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106
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107 ngx_quic_server_id_t sid;
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108
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109 ngx_quic_path_t *path;
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110 ngx_quic_client_id_t *cid;
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111 };
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112
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113
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114 typedef struct {
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115 ngx_rbtree_t tree;
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116 ngx_rbtree_node_t sentinel;
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117 ngx_queue_t uninitialized;
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118
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119 uint64_t sent;
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120 uint64_t recv_offset;
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121 uint64_t recv_window;
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122 uint64_t recv_last;
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123 uint64_t recv_max_data;
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124 uint64_t send_max_data;
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125
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126 uint64_t server_max_streams_uni;
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127 uint64_t server_max_streams_bidi;
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128 uint64_t server_streams_uni;
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129 uint64_t server_streams_bidi;
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130
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131 uint64_t client_max_streams_uni;
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132 uint64_t client_max_streams_bidi;
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parents:
diff changeset
133 uint64_t client_streams_uni;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
134 uint64_t client_streams_bidi;
8552
fe919fd63b0b QUIC: client certificate validation with OCSP.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8547
diff changeset
135
fe919fd63b0b QUIC: client certificate validation with OCSP.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8547
diff changeset
136 ngx_uint_t initialized;
fe919fd63b0b QUIC: client certificate validation with OCSP.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8547
diff changeset
137 /* unsigned initialized:1; */
8386
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parents:
diff changeset
138 } ngx_quic_streams_t;
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parents:
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139
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parents:
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140
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parents:
diff changeset
141 typedef struct {
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
142 size_t in_flight;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
143 size_t window;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
144 size_t ssthresh;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
145 ngx_msec_t recovery_start;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
146 } ngx_quic_congestion_t;
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147
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148
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parents:
diff changeset
149 /*
8498
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parents: 8493
diff changeset
150 * RFC 9000, 12.3. Packet Numbers
8386
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parents:
diff changeset
151 *
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
152 * Conceptually, a packet number space is the context in which a packet
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parents:
diff changeset
153 * can be processed and acknowledged. Initial packets can only be sent
8498
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parents: 8493
diff changeset
154 * with Initial packet protection keys and acknowledged in packets that
8386
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parents:
diff changeset
155 * are also Initial packets.
8498
4715f3e669f1 QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8493
diff changeset
156 */
8411
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parents: 8410
diff changeset
157 struct ngx_quic_send_ctx_s {
8386
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parents:
diff changeset
158 enum ssl_encryption_level_t level;
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parents:
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159
8442
b3f6ad181df4 QUIC: refactored CRYPTO and STREAM buffer ordering.
Roman Arutyunyan <arut@nginx.com>
parents: 8424
diff changeset
160 ngx_chain_t *crypto;
b3f6ad181df4 QUIC: refactored CRYPTO and STREAM buffer ordering.
Roman Arutyunyan <arut@nginx.com>
parents: 8424
diff changeset
161 uint64_t crypto_received;
b3f6ad181df4 QUIC: refactored CRYPTO and STREAM buffer ordering.
Roman Arutyunyan <arut@nginx.com>
parents: 8424
diff changeset
162 uint64_t crypto_sent;
b3f6ad181df4 QUIC: refactored CRYPTO and STREAM buffer ordering.
Roman Arutyunyan <arut@nginx.com>
parents: 8424
diff changeset
163
8386
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parents:
diff changeset
164 uint64_t pnum; /* to be sent */
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parents:
diff changeset
165 uint64_t largest_ack; /* received from peer */
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
166 uint64_t largest_pn; /* received from peer */
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parents:
diff changeset
167
8547
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents: 8498
diff changeset
168 ngx_queue_t frames; /* generated frames */
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents: 8498
diff changeset
169 ngx_queue_t sending; /* frames assigned to pkt */
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents: 8498
diff changeset
170 ngx_queue_t sent; /* frames waiting ACK */
8386
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parents:
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171
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
172 uint64_t pending_ack; /* non sent ack-eliciting */
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
173 uint64_t largest_range;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
174 uint64_t first_range;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
175 ngx_msec_t largest_received;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
176 ngx_msec_t ack_delay_start;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
177 ngx_uint_t nranges;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
178 ngx_quic_ack_range_t ranges[NGX_QUIC_MAX_RANGES];
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
179 ngx_uint_t send_ack;
8411
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parents: 8410
diff changeset
180 };
8386
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181
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182
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parents:
diff changeset
183 struct ngx_quic_connection_s {
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
184 uint32_t version;
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parents:
diff changeset
185
8423
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parents: 8415
diff changeset
186 ngx_quic_socket_t *socket;
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diff changeset
187 ngx_quic_socket_t *backup;
8386
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188
8423
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diff changeset
189 ngx_queue_t sockets;
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diff changeset
190 ngx_queue_t paths;
8386
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parents:
diff changeset
191 ngx_queue_t client_ids;
8423
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parents: 8415
diff changeset
192 ngx_queue_t free_sockets;
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diff changeset
193 ngx_queue_t free_paths;
8386
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parents:
diff changeset
194 ngx_queue_t free_client_ids;
8423
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parents: 8415
diff changeset
195
4117aa7fa38e QUIC: connection migration.
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parents: 8415
diff changeset
196 ngx_uint_t nsockets;
8386
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parents:
diff changeset
197 ngx_uint_t nclient_ids;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
198 uint64_t max_retired_seqnum;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
199 uint64_t client_seqnum;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
200 uint64_t server_seqnum;
8423
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Vladimir Homutov <vl@nginx.com>
parents: 8415
diff changeset
201 uint64_t path_seqnum;
8386
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parents:
diff changeset
202
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
203 ngx_uint_t client_tp_done;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
204 ngx_quic_tp_t tp;
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parents:
diff changeset
205 ngx_quic_tp_t ctp;
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parents:
diff changeset
206
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
207 ngx_quic_send_ctx_t send_ctx[NGX_QUIC_SEND_CTX_LAST];
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parents:
diff changeset
208
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
209 ngx_quic_keys_t *keys;
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210
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
211 ngx_quic_conf_t *conf;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
212
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
213 ngx_event_t push;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
214 ngx_event_t pto;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
215 ngx_event_t close;
8423
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8415
diff changeset
216 ngx_event_t path_validation;
8386
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parents:
diff changeset
217 ngx_msec_t last_cc;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
218
8493
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8492
diff changeset
219 ngx_msec_t first_rtt;
8386
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
220 ngx_msec_t latest_rtt;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
221 ngx_msec_t avg_rtt;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
222 ngx_msec_t min_rtt;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
223 ngx_msec_t rttvar;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
224
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
225 ngx_uint_t pto_count;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
226
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
227 ngx_queue_t free_frames;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
228 ngx_chain_t *free_bufs;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
229 ngx_buf_t *free_shadow_bufs;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
230
8645
404de224517e QUIC: limited the total number of frames.
Roman Arutyunyan <arut@nginx.com>
parents: 8644
diff changeset
231 ngx_uint_t nframes;
8386
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parents:
diff changeset
232 #ifdef NGX_QUIC_DEBUG_ALLOC
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
233 ngx_uint_t nbufs;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
234 #endif
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parents:
diff changeset
235
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parents:
diff changeset
236 ngx_quic_streams_t streams;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
237 ngx_quic_congestion_t congestion;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
238
8644
6204120cf37f QUIC: traffic-based flood detection.
Roman Arutyunyan <arut@nginx.com>
parents: 8552
diff changeset
239 off_t received;
6204120cf37f QUIC: traffic-based flood detection.
Roman Arutyunyan <arut@nginx.com>
parents: 8552
diff changeset
240
8386
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
241 ngx_uint_t error;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
242 enum ssl_encryption_level_t error_level;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
243 ngx_uint_t error_ftype;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
244 const char *error_reason;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
245
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
246 ngx_uint_t shutdown_code;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
247 const char *shutdown_reason;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
248
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
249 unsigned error_app:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
250 unsigned send_timer_set:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
251 unsigned closing:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
252 unsigned shutdown:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
253 unsigned draining:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
254 unsigned key_phase:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
255 unsigned validated:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
256 };
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
257
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
258
8413
46161c610919 QUIC: separate files for SSL library interfaces.
Vladimir Homutov <vl@nginx.com>
parents: 8412
diff changeset
259 ngx_int_t ngx_quic_apply_transport_params(ngx_connection_t *c,
46161c610919 QUIC: separate files for SSL library interfaces.
Vladimir Homutov <vl@nginx.com>
parents: 8412
diff changeset
260 ngx_quic_tp_t *ctp);
46161c610919 QUIC: separate files for SSL library interfaces.
Vladimir Homutov <vl@nginx.com>
parents: 8412
diff changeset
261 void ngx_quic_discard_ctx(ngx_connection_t *c,
46161c610919 QUIC: separate files for SSL library interfaces.
Vladimir Homutov <vl@nginx.com>
parents: 8412
diff changeset
262 enum ssl_encryption_level_t level);
8386
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
263 void ngx_quic_close_connection(ngx_connection_t *c, ngx_int_t rc);
8411
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents: 8410
diff changeset
264 void ngx_quic_shutdown_quic(ngx_connection_t *c);
8386
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
265
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266 #if (NGX_DEBUG)
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parents: 8410
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267 void ngx_quic_connstate_dbg(ngx_connection_t *c);
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parents: 8410
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268 #else
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parents: 8410
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269 #define ngx_quic_connstate_dbg(c)
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270 #endif
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parents: 8410
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271
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parents: 8387
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272 #endif /* _NGX_EVENT_QUIC_CONNECTION_H_INCLUDED_ */