Mercurial > hg > nginx-quic

annotate src/event/ngx_event_quic.h @ 7829:d73516830236 quic

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HTTP/3: bytes holding directives changed to ngx_conf_set_size_slot. This allows to specify directive values with measurement units.
author Sergey Kandaurov <pluknet@nginx.com>
date Wed, 22 Apr 2020 15:48:39 +0300
parents a5141e6b3214
children ad3a6f069498
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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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14
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15 #define NGX_QUIC_DRAFT_VERSION 27
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16 #define NGX_QUIC_VERSION (0xff000000 + NGX_QUIC_DRAFT_VERSION)
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17
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18 #define NGX_QUIC_MAX_SHORT_HEADER 25 /* 1 flags + 20 dcid + 4 pn */
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19 #define NGX_QUIC_MAX_LONG_HEADER 56
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20 /* 1 flags + 4 version + 2 x (1 + 20) s/dcid + 4 pn + 4 len + token len */
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21
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22 #define NGX_QUIC_DEFAULT_MAX_PACKET_SIZE 65527
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23 #define NGX_QUIC_DEFAULT_ACK_DELAY_EXPONENT 3
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24 #define NGX_QUIC_DEFAULT_MAX_ACK_DELAY 25
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25
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26 #define NGX_QUIC_MIN_INITIAL_SIZE 1200
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27
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28 #define NGX_QUIC_STREAM_SERVER_INITIATED 0x01
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29 #define NGX_QUIC_STREAM_UNIDIRECTIONAL 0x02
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30
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31 #define NGX_QUIC_STREAM_BUFSIZE 16384
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32
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33
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34 typedef struct {
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35 /* configurable */
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36 ngx_msec_t max_idle_timeout;
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37 ngx_msec_t max_ack_delay;
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38
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39 size_t max_packet_size;
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40 size_t initial_max_data;
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41 size_t initial_max_stream_data_bidi_local;
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42 size_t initial_max_stream_data_bidi_remote;
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43 size_t initial_max_stream_data_uni;
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44 ngx_uint_t initial_max_streams_bidi;
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45 ngx_uint_t initial_max_streams_uni;
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46 ngx_uint_t ack_delay_exponent;
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47 ngx_uint_t disable_active_migration;
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48 ngx_uint_t active_connection_id_limit;
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49
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50 /* TODO */
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51 ngx_uint_t original_connection_id;
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52 u_char stateless_reset_token[16];
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53 void *preferred_address;
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54 } ngx_quic_tp_t;
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55
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56
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57 typedef struct {
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58 uint64_t sent;
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59 uint64_t received;
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60 ngx_queue_t frames; /* reorder queue */
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61 size_t total; /* size of buffered data */
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62 } ngx_quic_frames_stream_t;
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63
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64
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65 struct ngx_quic_stream_s {
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66 ngx_rbtree_node_t node;
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67 ngx_connection_t *parent;
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68 ngx_connection_t *c;
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69 uint64_t id;
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70 ngx_buf_t *b;
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71 ngx_quic_frames_stream_t fs;
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72 };
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73
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74
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75 void ngx_quic_run(ngx_connection_t *c, ngx_ssl_t *ssl, ngx_quic_tp_t *tp,
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76 ngx_connection_handler_pt handler);
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77 ngx_connection_t *ngx_quic_create_uni_stream(ngx_connection_t *c);
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78
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79
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80 /********************************* DEBUG *************************************/
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81
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82 #if (NGX_DEBUG)
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83
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84 #define ngx_quic_hexdump(log, fmt, data, len, ...) \
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85 do { \
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86 ngx_int_t m; \
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87 u_char buf[2048]; \
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88 \
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89 if (log->log_level & NGX_LOG_DEBUG_EVENT) { \
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90 m = ngx_hex_dump(buf, (u_char *) data, ngx_min(len, 1024)) - buf; \
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91 ngx_log_debug(NGX_LOG_DEBUG_EVENT, log, 0, \
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92 "%s: " fmt " %*s%s, len: %uz", \
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93 __FUNCTION__, __VA_ARGS__, m, buf, \
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94 len < 2048 ? "" : "...", len); \
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95 } \
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96 } while (0)
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97
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98 #else
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99
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100 #define ngx_quic_hexdump(log, fmt, data, len, ...)
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101
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102 #endif
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103
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104 #define ngx_quic_hexdump0(log, fmt, data, len) \
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105 ngx_quic_hexdump(log, fmt "%s", data, len, "") \
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106
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107
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108 #endif /* _NGX_EVENT_QUIC_H_INCLUDED_ */