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annotate src/event/quic/ngx_event_quic.h @ 8924:d6ef13c5fd8e quic

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QUIC: simplified configuration. Directives that set transport parameters are removed from the configuration. Corresponding values are derived from the quic configuration or initialized to default. Whenever possible, quic configuration parameters are taken from higher-level protocol settings, i.e. HTTP/3.
author Vladimir Homutov <vl@nginx.com>
date Mon, 06 Dec 2021 15:19:54 +0300
parents 41caf5410110
children 56dec0d4e5b1
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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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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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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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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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c8bda5e1e662 QUIC: headers cleanup.
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23 #define NGX_QUIC_SR_TOKEN_LEN 16
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ad3a6f069498 Added proper handling of connection close phases.
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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
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31 typedef struct {
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32 ngx_ssl_t *ssl;
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33
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34 ngx_flag_t retry;
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35 ngx_flag_t gso_enabled;
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36 ngx_flag_t disable_active_migration;
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37 ngx_msec_t timeout;
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38 ngx_str_t host_key;
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39 size_t mtu;
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40 size_t stream_buffer_size;
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41 ngx_uint_t max_concurrent_streams_bidi;
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42 ngx_uint_t max_concurrent_streams_uni;
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41caf5410110 QUIC: reject streams which we could not create.
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43 ngx_int_t stream_close_code;
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44 ngx_int_t stream_reject_code_uni;
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45 ngx_int_t stream_reject_code_bidi;
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46
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47 u_char av_token_key[NGX_QUIC_AV_KEY_LEN];
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48 u_char sr_token_key[NGX_QUIC_SR_KEY_LEN];
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49 } ngx_quic_conf_t;
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50
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51
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52 struct ngx_quic_stream_s {
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53 ngx_rbtree_node_t node;
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54 ngx_queue_t queue;
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55 ngx_connection_t *parent;
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56 ngx_connection_t *connection;
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57 uint64_t id;
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eee307399229 QUIC basic congestion control.
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58 uint64_t acked;
8365
fab75acb1f72 Respect MAX_DATA and MAX_STREAM_DATA from QUIC client.
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59 uint64_t send_max_data;
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f52a2b77d406 QUIC: generic buffering for stream input.
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60 uint64_t recv_max_data;
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61 uint64_t recv_offset;
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af33d1ef1c3c QUIC: stream flow control refactored.
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62 uint64_t recv_window;
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60c6e8d8d3ae QUIC: make sure stream data size is lower than final size.
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63 uint64_t recv_last;
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64 uint64_t final_size;
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65 ngx_chain_t *in;
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66 ngx_uint_t cancelable; /* unsigned cancelable:1; */
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67 };
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68
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69
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70 void ngx_quic_run(ngx_connection_t *c, ngx_quic_conf_t *conf);
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71 ngx_connection_t *ngx_quic_open_stream(ngx_connection_t *c, ngx_uint_t bidi);
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e0f92f68e018 QUIC: Introduced ngx_quic_finalize_connection().
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72 void ngx_quic_finalize_connection(ngx_connection_t *c, ngx_uint_t err,
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73 const char *reason);
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74 void ngx_quic_shutdown_connection(ngx_connection_t *c, ngx_uint_t err,
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75 const char *reason);
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d710c457171c QUIC: added ability to reset a stream.
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76 ngx_int_t ngx_quic_reset_stream(ngx_connection_t *c, ngx_uint_t err);
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b4c7853b0488 QUIC: added shutdown support in stream proxy.
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77 ngx_int_t ngx_quic_shutdown_stream(ngx_connection_t *c, int how);
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e0947c952d43 QUIC: multiple versions support in ALPN.
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78 uint32_t ngx_quic_version(ngx_connection_t *c);
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9ae239d2547d QUIC: separate event handling functions.
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79 ngx_int_t ngx_quic_handle_read_event(ngx_event_t *rev, ngx_uint_t flags);
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80 ngx_int_t ngx_quic_handle_write_event(ngx_event_t *wev, size_t lowat);
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45db1b5c1706 QUIC: connection multiplexing per port.
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81 ngx_int_t ngx_quic_get_packet_dcid(ngx_log_t *log, u_char *data, size_t len,
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82 ngx_str_t *dcid);
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83 ngx_int_t ngx_quic_derive_key(ngx_log_t *log, const char *label,
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84 ngx_str_t *secret, ngx_str_t *salt, u_char *out, size_t len);
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85
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86 #endif /* _NGX_EVENT_QUIC_H_INCLUDED_ */