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annotate src/event/quic/ngx_event_quic.h @ 9016:55b38514729b quic

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QUIC: fixed insertion at the end of buffer. Previously, last buffer was tracked by keeping a pointer to the previous chain link "next" field. When the previous buffer was split and then removed, the pointer was no longer valid. Writing at this pointer resulted in broken data chains. Now last buffer is tracked by keeping a direct pointer to it.
author Roman Arutyunyan <arut@nginx.com>
date Thu, 17 Feb 2022 22:38:42 +0300
parents 8d11e2171697
children c2f5d79cde64
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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6
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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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10
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a5141e6b3214 Fixed includes in quic headers.
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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53a5cdbe500c QUIC add_handshake_data callback, varint routines.
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13
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69345a26ba69 Split transport and crypto parts into separate files.
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14
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125cbfa77013 Renamed max_packet_size to max_udp_payload_size, from draft-28.
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15 #define NGX_QUIC_MAX_UDP_PAYLOAD_SIZE 65527
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391d06a51bc0 Limited max udp payload size for outgoing packets.
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16
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d45325e90221 Limit output QUIC packets with client max_packet_size.
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17 #define NGX_QUIC_DEFAULT_ACK_DELAY_EXPONENT 3
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18 #define NGX_QUIC_DEFAULT_MAX_ACK_DELAY 25
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cef042935003 QUIC: the "quic_host_key" directive.
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19 #define NGX_QUIC_DEFAULT_HOST_KEY_LEN 32
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20 #define NGX_QUIC_SR_KEY_LEN 32
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21 #define NGX_QUIC_AV_KEY_LEN 32
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22
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c8bda5e1e662 QUIC: headers cleanup.
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23 #define NGX_QUIC_SR_TOKEN_LEN 16
8355
ad3a6f069498 Added proper handling of connection close phases.
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24
8345
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25 #define NGX_QUIC_MIN_INITIAL_SIZE 1200
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26
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27 #define NGX_QUIC_STREAM_SERVER_INITIATED 0x01
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28 #define NGX_QUIC_STREAM_UNIDIRECTIONAL 0x02
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29
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e9891e8ee975 Configurable transport parameters.
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30
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31 typedef enum {
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32 NGX_QUIC_STREAM_SEND_READY = 0,
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33 NGX_QUIC_STREAM_SEND_SEND,
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34 NGX_QUIC_STREAM_SEND_DATA_SENT,
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35 NGX_QUIC_STREAM_SEND_DATA_RECVD,
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36 NGX_QUIC_STREAM_SEND_RESET_SENT,
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37 NGX_QUIC_STREAM_SEND_RESET_RECVD
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38 } ngx_quic_stream_send_state_e;
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39
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40
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41 typedef enum {
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42 NGX_QUIC_STREAM_RECV_RECV = 0,
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43 NGX_QUIC_STREAM_RECV_SIZE_KNOWN,
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44 NGX_QUIC_STREAM_RECV_DATA_RECVD,
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45 NGX_QUIC_STREAM_RECV_DATA_READ,
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46 NGX_QUIC_STREAM_RECV_RESET_RECVD,
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47 NGX_QUIC_STREAM_RECV_RESET_READ
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48 } ngx_quic_stream_recv_state_e;
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49
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50
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51 typedef struct {
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52 uint64_t size;
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53 uint64_t offset;
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8d11e2171697 QUIC: optimize insertion at the end of QUIC buffer.
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54 uint64_t last_offset;
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55 ngx_chain_t *chain;
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56 ngx_chain_t *last_chain;
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57 } ngx_quic_buffer_t;
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58
f9c788f3f5cc QUIC: ngx_quic_buffer_t object.
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59
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60 typedef struct {
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61 ngx_ssl_t *ssl;
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62
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63 ngx_flag_t retry;
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64 ngx_flag_t gso_enabled;
cba58cb06b3a QUIC: style.
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65 ngx_flag_t disable_active_migration;
cba58cb06b3a QUIC: style.
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66 ngx_msec_t timeout;
cba58cb06b3a QUIC: style.
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67 ngx_str_t host_key;
cba58cb06b3a QUIC: style.
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68 size_t mtu;
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69 size_t stream_buffer_size;
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70 ngx_uint_t max_concurrent_streams_bidi;
cba58cb06b3a QUIC: style.
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71 ngx_uint_t max_concurrent_streams_uni;
cba58cb06b3a QUIC: style.
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72 ngx_uint_t active_connection_id_limit;
cba58cb06b3a QUIC: style.
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73 ngx_int_t stream_close_code;
cba58cb06b3a QUIC: style.
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74 ngx_int_t stream_reject_code_uni;
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75 ngx_int_t stream_reject_code_bidi;
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76
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77 u_char av_token_key[NGX_QUIC_AV_KEY_LEN];
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78 u_char sr_token_key[NGX_QUIC_SR_KEY_LEN];
8481
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79 } ngx_quic_conf_t;
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80
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81
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82 struct ngx_quic_stream_s {
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83 ngx_rbtree_node_t node;
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84 ngx_queue_t queue;
cba58cb06b3a QUIC: style.
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85 ngx_connection_t *parent;
cba58cb06b3a QUIC: style.
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86 ngx_connection_t *connection;
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87 uint64_t id;
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88 uint64_t acked;
cba58cb06b3a QUIC: style.
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89 uint64_t send_max_data;
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parents: 9003
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90 uint64_t send_offset;
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91 uint64_t send_final_size;
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92 uint64_t recv_max_data;
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93 uint64_t recv_offset;
cba58cb06b3a QUIC: style.
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94 uint64_t recv_window;
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95 uint64_t recv_last;
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96 uint64_t recv_final_size;
9011
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97 ngx_quic_buffer_t send;
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98 ngx_quic_buffer_t recv;
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99 ngx_quic_stream_send_state_e send_state;
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100 ngx_quic_stream_recv_state_e recv_state;
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101 ngx_uint_t cancelable; /* unsigned cancelable:1; */
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102 };
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103
8168
b507592c15a7 Server Initial Keys.
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104
8563
bed310672f39 QUIC: moved ssl configuration pointer to quic configuration.
Vladimir Homutov <vl@nginx.com>
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105 void ngx_quic_run(ngx_connection_t *c, ngx_quic_conf_t *conf);
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455a8536eaa7 QUIC: limited the number of server-initiated streams.
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106 ngx_connection_t *ngx_quic_open_stream(ngx_connection_t *c, ngx_uint_t bidi);
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107 void ngx_quic_finalize_connection(ngx_connection_t *c, ngx_uint_t err,
e0f92f68e018 QUIC: Introduced ngx_quic_finalize_connection().
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108 const char *reason);
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109 void ngx_quic_shutdown_connection(ngx_connection_t *c, ngx_uint_t err,
fc64ab301bad QUIC: connection shutdown.
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110 const char *reason);
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d710c457171c QUIC: added ability to reset a stream.
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111 ngx_int_t ngx_quic_reset_stream(ngx_connection_t *c, ngx_uint_t err);
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Vladimir Homutov <vl@nginx.com>
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112 ngx_int_t ngx_quic_shutdown_stream(ngx_connection_t *c, int how);
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113 ngx_int_t ngx_quic_handle_read_event(ngx_event_t *rev, ngx_uint_t flags);
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114 ngx_int_t ngx_quic_handle_write_event(ngx_event_t *wev, size_t lowat);
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parents: 8626
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115 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: 8626
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116 ngx_str_t *dcid);
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Sergey Kandaurov <pluknet@nginx.com>
parents: 8754
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117 ngx_int_t ngx_quic_derive_key(ngx_log_t *log, const char *label,
b4e6b7049984 QUIC: normalize header inclusion.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8754
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118 ngx_str_t *secret, ngx_str_t *salt, u_char *out, size_t len);
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5d91389e0fd3 Initial QUIC support in http.
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119
5d91389e0fd3 Initial QUIC support in http.
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120 #endif /* _NGX_EVENT_QUIC_H_INCLUDED_ */