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annotate src/event/quic/ngx_event_quic_connection.h @ 9017:c2f5d79cde64 quic

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QUIC: separate UDP framework for QUIC. Previously, QUIC used the existing UDP framework, which was created for UDP in Stream. However the way QUIC connections are created and looked up is different from the way UDP connections in Stream are created and looked up. Now these two implementations are decoupled.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 20 Apr 2022 16:01:17 +0400
parents f9c788f3f5cc
children 7da4791e0264
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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 used; /* unsigned used:1; */
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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 ngx_sockaddr_t sa;
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87 socklen_t socklen;
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88 ngx_quic_client_id_t *cid;
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89 ngx_msec_t expires;
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90 ngx_uint_t tries;
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91 ngx_uint_t tag;
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92 off_t sent;
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93 off_t received;
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94 u_char challenge1[8];
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95 u_char challenge2[8];
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96 uint64_t seqnum;
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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 unsigned validated:1;
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100 unsigned validating:1;
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101 unsigned limited:1;
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102 };
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103
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104
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105 struct ngx_quic_socket_s {
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106 ngx_udp_connection_t udp;
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107 ngx_quic_connection_t *quic;
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108 ngx_queue_t queue;
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109 ngx_quic_server_id_t sid;
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110 ngx_sockaddr_t sockaddr;
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111 socklen_t socklen;
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112 ngx_uint_t used; /* unsigned used:1; */
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113 };
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114
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115
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116 typedef struct {
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117 ngx_rbtree_t tree;
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118 ngx_rbtree_node_t sentinel;
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119
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120 ngx_queue_t uninitialized;
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121 ngx_queue_t free;
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122
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123 uint64_t sent;
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124 uint64_t recv_offset;
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125 uint64_t recv_window;
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126 uint64_t recv_last;
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127 uint64_t recv_max_data;
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128 uint64_t send_offset;
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129 uint64_t send_max_data;
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130
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diff changeset
131 uint64_t server_max_streams_uni;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
132 uint64_t server_max_streams_bidi;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
133 uint64_t server_streams_uni;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
134 uint64_t server_streams_bidi;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
135
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
136 uint64_t client_max_streams_uni;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
137 uint64_t client_max_streams_bidi;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
138 uint64_t client_streams_uni;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
139 uint64_t client_streams_bidi;
8827
fe919fd63b0b QUIC: client certificate validation with OCSP.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8822
diff changeset
140
fe919fd63b0b QUIC: client certificate validation with OCSP.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8822
diff changeset
141 ngx_uint_t initialized;
fe919fd63b0b QUIC: client certificate validation with OCSP.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8822
diff changeset
142 /* unsigned initialized:1; */
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
143 } ngx_quic_streams_t;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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parents:
diff changeset
144
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
145
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
146 typedef struct {
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
147 size_t in_flight;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
148 size_t window;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
149 size_t ssthresh;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
150 ngx_msec_t recovery_start;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
151 } ngx_quic_congestion_t;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
152
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
153
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
154 /*
8797
4715f3e669f1 QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8792
diff changeset
155 * RFC 9000, 12.3. Packet Numbers
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
156 *
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
157 * Conceptually, a packet number space is the context in which a packet
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
158 * can be processed and acknowledged. Initial packets can only be sent
8797
4715f3e669f1 QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8792
diff changeset
159 * with Initial packet protection keys and acknowledged in packets that
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
160 * are also Initial packets.
8797
4715f3e669f1 QUIC: updated specification references.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8792
diff changeset
161 */
8751
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents: 8750
diff changeset
162 struct ngx_quic_send_ctx_s {
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
163 enum ssl_encryption_level_t level;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
164
9011
f9c788f3f5cc QUIC: ngx_quic_buffer_t object.
Roman Arutyunyan <arut@nginx.com>
parents: 9010
diff changeset
165 ngx_quic_buffer_t crypto;
8782
b3f6ad181df4 QUIC: refactored CRYPTO and STREAM buffer ordering.
Roman Arutyunyan <arut@nginx.com>
parents: 8764
diff changeset
166 uint64_t crypto_sent;
b3f6ad181df4 QUIC: refactored CRYPTO and STREAM buffer ordering.
Roman Arutyunyan <arut@nginx.com>
parents: 8764
diff changeset
167
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
168 uint64_t pnum; /* to be sent */
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
169 uint64_t largest_ack; /* received from peer */
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
170 uint64_t largest_pn; /* received from peer */
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
171
8822
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents: 8797
diff changeset
172 ngx_queue_t frames; /* generated frames */
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents: 8797
diff changeset
173 ngx_queue_t sending; /* frames assigned to pkt */
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents: 8797
diff changeset
174 ngx_queue_t sent; /* frames waiting ACK */
8736
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
175
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
176 uint64_t pending_ack; /* non sent ack-eliciting */
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
177 uint64_t largest_range;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
178 uint64_t first_range;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
179 ngx_msec_t largest_received;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
180 ngx_msec_t ack_delay_start;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
181 ngx_uint_t nranges;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
182 ngx_quic_ack_range_t ranges[NGX_QUIC_MAX_RANGES];
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
183 ngx_uint_t send_ack;
8751
bc910a5ec737 QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents: 8750
diff changeset
184 };
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
185
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
186
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
187 struct ngx_quic_connection_s {
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
188 uint32_t version;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
189
8971
1e2f4e9c8195 QUIC: reworked migration handling.
Vladimir Homutov <vl@nginx.com>
parents: 8950
diff changeset
190 ngx_quic_path_t *path;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
191
8763
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
192 ngx_queue_t sockets;
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
193 ngx_queue_t paths;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
194 ngx_queue_t client_ids;
8763
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
195 ngx_queue_t free_sockets;
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
196 ngx_queue_t free_paths;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
197 ngx_queue_t free_client_ids;
8763
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
198
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
199 ngx_uint_t nsockets;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
200 ngx_uint_t nclient_ids;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
201 uint64_t max_retired_seqnum;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
202 uint64_t client_seqnum;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
203 uint64_t server_seqnum;
8763
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
204 uint64_t path_seqnum;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
205
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
206 ngx_quic_tp_t tp;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
207 ngx_quic_tp_t ctp;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
208
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
209 ngx_quic_send_ctx_t send_ctx[NGX_QUIC_SEND_CTX_LAST];
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
210
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
211 ngx_quic_keys_t *keys;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
212
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
213 ngx_quic_conf_t *conf;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
214
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
215 ngx_event_t push;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
216 ngx_event_t pto;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
217 ngx_event_t close;
8763
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
218 ngx_event_t path_validation;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
219 ngx_msec_t last_cc;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
220
8792
004172345bdc QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents: 8791
diff changeset
221 ngx_msec_t first_rtt;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
222 ngx_msec_t latest_rtt;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
223 ngx_msec_t avg_rtt;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
224 ngx_msec_t min_rtt;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
225 ngx_msec_t rttvar;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
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_uint_t pto_count;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
228
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
229 ngx_queue_t free_frames;
8950
fb811b6c76ee QUIC: refactored buffer allocation, spliting and freeing.
Roman Arutyunyan <arut@nginx.com>
parents: 8940
diff changeset
230 ngx_buf_t *free_bufs;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
231 ngx_buf_t *free_shadow_bufs;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
232
8883
404de224517e QUIC: limited the total number of frames.
Roman Arutyunyan <arut@nginx.com>
parents: 8882
diff changeset
233 ngx_uint_t nframes;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
234 #ifdef NGX_QUIC_DEBUG_ALLOC
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
235 ngx_uint_t nbufs;
8950
fb811b6c76ee QUIC: refactored buffer allocation, spliting and freeing.
Roman Arutyunyan <arut@nginx.com>
parents: 8940
diff changeset
236 ngx_uint_t nshadowbufs;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
237 #endif
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
238
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
239 ngx_quic_streams_t streams;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
240 ngx_quic_congestion_t congestion;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
241
8882
6204120cf37f QUIC: traffic-based flood detection.
Roman Arutyunyan <arut@nginx.com>
parents: 8827
diff changeset
242 off_t received;
6204120cf37f QUIC: traffic-based flood detection.
Roman Arutyunyan <arut@nginx.com>
parents: 8827
diff changeset
243
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
244 ngx_uint_t error;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
245 enum ssl_encryption_level_t error_level;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
246 ngx_uint_t error_ftype;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
247 const char *error_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 ngx_uint_t shutdown_code;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
250 const char *shutdown_reason;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
251
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
252 unsigned error_app:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
253 unsigned send_timer_set:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
254 unsigned closing:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
255 unsigned shutdown:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
256 unsigned draining:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
257 unsigned key_phase:1;
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
258 unsigned validated:1;
8897
1d7bf9778328 QUIC: converted client_tp_done to bitfield.
Vladimir Homutov <vl@nginx.com>
parents: 8883
diff changeset
259 unsigned client_tp_done:1;
8736
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
260 };
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
261
714e9af983de QUIC: separate header for ngx_quic_connection_t.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
262
8753
46161c610919 QUIC: separate files for SSL library interfaces.
Vladimir Homutov <vl@nginx.com>
parents: 8752
diff changeset
263 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: 8752
diff changeset
264 ngx_quic_tp_t *ctp);
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265 void ngx_quic_discard_ctx(ngx_connection_t *c,
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266 enum ssl_encryption_level_t level);
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267 void ngx_quic_close_connection(ngx_connection_t *c, ngx_int_t rc);
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268 void ngx_quic_shutdown_quic(ngx_connection_t *c);
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269
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270 #if (NGX_DEBUG)
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271 void ngx_quic_connstate_dbg(ngx_connection_t *c);
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272 #else
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273 #define ngx_quic_connstate_dbg(c)
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274 #endif
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275
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276 #endif /* _NGX_EVENT_QUIC_CONNECTION_H_INCLUDED_ */