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annotate src/event/quic/ngx_event_quic.h @ 8855:9ae239d2547d quic

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QUIC: separate event handling functions. The functions ngx_quic_handle_read_event() and ngx_quic_handle_write_event() are added. Previously this code was a part of ngx_handle_read_event() and ngx_handle_write_event(). The change simplifies ngx_handle_read_event() and ngx_handle_write_event() by moving QUIC-related code to a QUIC source file.
author Roman Arutyunyan <arut@nginx.com>
date Thu, 09 Sep 2021 16:55:00 +0300
parents fe919fd63b0b
children b4c7853b0488
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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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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 #define NGX_QUIC_MAX_UDP_PAYLOAD_SIZE 65527
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16
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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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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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23 #define NGX_QUIC_SR_TOKEN_LEN 16
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24
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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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30 #define NGX_QUIC_STREAM_BUFSIZE 65536
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31
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32
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33 typedef struct {
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34 /* configurable */
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35 ngx_msec_t max_idle_timeout;
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36 ngx_msec_t max_ack_delay;
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37
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38 size_t max_udp_payload_size;
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39 size_t initial_max_data;
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40 size_t initial_max_stream_data_bidi_local;
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41 size_t initial_max_stream_data_bidi_remote;
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42 size_t initial_max_stream_data_uni;
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43 ngx_uint_t initial_max_streams_bidi;
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44 ngx_uint_t initial_max_streams_uni;
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45 ngx_uint_t ack_delay_exponent;
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46 ngx_uint_t active_connection_id_limit;
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47 ngx_flag_t disable_active_migration;
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48 ngx_str_t original_dcid;
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49 ngx_str_t initial_scid;
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50 ngx_str_t retry_scid;
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51 u_char sr_token[NGX_QUIC_SR_TOKEN_LEN];
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52
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53 /* TODO */
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54 void *preferred_address;
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55 } ngx_quic_tp_t;
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56
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57
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58 typedef struct {
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59 ngx_ssl_t *ssl;
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60 ngx_quic_tp_t tp;
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61 ngx_flag_t retry;
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62 ngx_flag_t gso_enabled;
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63 ngx_flag_t require_alpn;
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64 ngx_str_t host_key;
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65 u_char av_token_key[NGX_QUIC_AV_KEY_LEN];
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66 u_char sr_token_key[NGX_QUIC_SR_KEY_LEN];
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67 } ngx_quic_conf_t;
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68
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69
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70 struct ngx_quic_stream_s {
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71 ngx_rbtree_node_t node;
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72 ngx_queue_t queue;
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73 ngx_connection_t *parent;
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74 ngx_connection_t *connection;
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75 uint64_t id;
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76 uint64_t acked;
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77 uint64_t send_max_data;
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78 uint64_t recv_max_data;
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79 uint64_t recv_offset;
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af33d1ef1c3c QUIC: stream flow control refactored.
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80 uint64_t recv_window;
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60c6e8d8d3ae QUIC: make sure stream data size is lower than final size.
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81 uint64_t recv_last;
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82 uint64_t final_size;
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83 ngx_chain_t *in;
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84 ngx_uint_t cancelable; /* unsigned cancelable:1; */
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85 };
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86
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87
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88 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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89 ngx_connection_t *ngx_quic_open_stream(ngx_connection_t *c, ngx_uint_t bidi);
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90 void ngx_quic_finalize_connection(ngx_connection_t *c, ngx_uint_t err,
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91 const char *reason);
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92 void ngx_quic_shutdown_connection(ngx_connection_t *c, ngx_uint_t err,
fc64ab301bad QUIC: connection shutdown.
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parents: 8711
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93 const char *reason);
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d710c457171c QUIC: added ability to reset a stream.
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94 ngx_int_t ngx_quic_reset_stream(ngx_connection_t *c, ngx_uint_t err);
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e0947c952d43 QUIC: multiple versions support in ALPN.
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95 uint32_t ngx_quic_version(ngx_connection_t *c);
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96 ngx_int_t ngx_quic_handle_read_event(ngx_event_t *rev, ngx_uint_t flags);
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97 ngx_int_t ngx_quic_handle_write_event(ngx_event_t *wev, size_t lowat);
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98 ngx_int_t ngx_quic_get_packet_dcid(ngx_log_t *log, u_char *data, size_t len,
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99 ngx_str_t *dcid);
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100 ngx_int_t ngx_quic_derive_key(ngx_log_t *log, const char *label,
b4e6b7049984 QUIC: normalize header inclusion.
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101 ngx_str_t *secret, ngx_str_t *salt, u_char *out, size_t len);
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102
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103 #endif /* _NGX_EVENT_QUIC_H_INCLUDED_ */