Mercurial > hg > nginx-quic

annotate src/event/ngx_event_quic.h @ 8204:831d1960826f quic

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QUIC: generate default stateless reset token key. Previously, if quic_stateless_reset_token_key was empty or unspecified, initial stateless reset token was not generated. However subsequent tokens were generated with empty key, which resulted in error with certain SSL libraries, for example OpenSSL. Now a random 32-byte stateless reset token key is generated if none is specified in the configuration. As a result, stateless reset tokens are now generated for all server ids.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 11 Nov 2020 21:08:48 +0000
parents feec2cc762f6
children dbad2d6d1898
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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5
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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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9
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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 /* Supported drafts: 27, 28, 29 */
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16 #ifndef NGX_QUIC_DRAFT_VERSION
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17 #define NGX_QUIC_DRAFT_VERSION 29
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18 #endif
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19
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20 #define NGX_QUIC_MAX_SHORT_HEADER 25 /* 1 flags + 20 dcid + 4 pn */
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21 #define NGX_QUIC_MAX_LONG_HEADER 56
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22 /* 1 flags + 4 version + 2 x (1 + 20) s/dcid + 4 pn + 4 len + token len */
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23
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24 #define NGX_QUIC_MAX_UDP_PAYLOAD_SIZE 65527
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25 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT 1252
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26 #define NGX_QUIC_MAX_UDP_PAYLOAD_OUT6 1232
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27
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28 #define NGX_QUIC_DEFAULT_ACK_DELAY_EXPONENT 3
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29 #define NGX_QUIC_DEFAULT_MAX_ACK_DELAY 25
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30 #define NGX_QUIC_DEFAULT_SRT_KEY_LEN 32
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31
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32 #define NGX_QUIC_RETRY_TIMEOUT 3000
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33 #define NGX_QUIC_RETRY_LIFETIME 30000
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34 #define NGX_QUIC_RETRY_BUFFER_SIZE 128
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35 /* 1 flags + 4 version + 3 x (1 + 20) s/o/dcid + itag + token(44) */
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36 #define NGX_QUIC_MAX_TOKEN_SIZE 32
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37 /* sizeof(struct in6_addr) + sizeof(ngx_msec_t) up to AES-256 block size */
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38
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39 /* quic-recovery, section 6.2.2, kInitialRtt */
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40 #define NGX_QUIC_INITIAL_RTT 333 /* ms */
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41
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42 /* quic-recovery, section 6.1.1, Packet Threshold */
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43 #define NGX_QUIC_PKT_THR 3 /* packets */
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44 /* quic-recovery, section 6.1.2, Time Threshold */
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45 #define NGX_QUIC_TIME_THR 1.125
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46 #define NGX_QUIC_TIME_GRANULARITY 1 /* ms */
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47
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48 #define NGX_QUIC_CC_MIN_INTERVAL 1000 /* 1s */
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49
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50 #define NGX_QUIC_MIN_INITIAL_SIZE 1200
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51
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52 #define NGX_QUIC_STREAM_SERVER_INITIATED 0x01
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53 #define NGX_QUIC_STREAM_UNIDIRECTIONAL 0x02
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54
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55 #define NGX_QUIC_STREAM_BUFSIZE 65536
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56
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57 #define NGX_QUIC_MAX_CID_LEN 20
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58 #define NGX_QUIC_SERVER_CID_LEN NGX_QUIC_MAX_CID_LEN
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59
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60 #define NGX_QUIC_SR_TOKEN_LEN 16
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61
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62 #define NGX_QUIC_MAX_SERVER_IDS 8
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63
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64 #define ngx_quic_get_connection(c) ((ngx_quic_connection_t *)(c)->udp)
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65
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66
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67 typedef struct {
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68 /* configurable */
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69 ngx_msec_t max_idle_timeout;
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70 ngx_msec_t max_ack_delay;
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71
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72 size_t max_udp_payload_size;
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73 size_t initial_max_data;
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74 size_t initial_max_stream_data_bidi_local;
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75 size_t initial_max_stream_data_bidi_remote;
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76 size_t initial_max_stream_data_uni;
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77 ngx_uint_t initial_max_streams_bidi;
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78 ngx_uint_t initial_max_streams_uni;
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79 ngx_uint_t ack_delay_exponent;
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80 ngx_uint_t active_connection_id_limit;
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81 ngx_flag_t disable_active_migration;
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82 ngx_str_t original_dcid;
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83 ngx_str_t initial_scid;
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84 ngx_str_t retry_scid;
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85 u_char sr_token[NGX_QUIC_SR_TOKEN_LEN];
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86
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87 /* TODO */
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88 void *preferred_address;
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89 } ngx_quic_tp_t;
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90
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91
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92 typedef struct {
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93 ngx_ssl_t *ssl;
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94 ngx_quic_tp_t tp;
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95 ngx_flag_t retry;
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96 ngx_flag_t require_alpn;
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97 u_char token_key[32]; /* AES 256 */
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98 ngx_str_t sr_token_key; /* stateless reset token key */
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99 } ngx_quic_conf_t;
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100
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101
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102 typedef struct {
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103 uint64_t sent;
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104 uint64_t received;
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105 ngx_queue_t frames; /* reorder queue */
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106 size_t total; /* size of buffered data */
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107 } ngx_quic_frames_stream_t;
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108
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109
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110 struct ngx_quic_stream_s {
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111 ngx_rbtree_node_t node;
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112 ngx_connection_t *parent;
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113 ngx_connection_t *c;
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114 uint64_t id;
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115 uint64_t acked;
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fab75acb1f72 Respect MAX_DATA and MAX_STREAM_DATA from QUIC client.
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116 uint64_t send_max_data;
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117 ngx_buf_t *b;
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118 ngx_quic_frames_stream_t fs;
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119 };
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120
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121
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122 typedef struct ngx_quic_keys_s ngx_quic_keys_t;
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123
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124
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125 void ngx_quic_run(ngx_connection_t *c, ngx_quic_conf_t *conf);
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126 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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127 void ngx_quic_finalize_connection(ngx_connection_t *c, ngx_uint_t err,
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128 const char *reason);
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Sergey Kandaurov <pluknet@nginx.com>
parents: 8195
diff changeset
129 uint32_t ngx_quic_version(ngx_connection_t *c);
8198
45db1b5c1706 QUIC: connection multiplexing per port.
Roman Arutyunyan <arut@nginx.com>
parents: 8196
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130 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: 8196
diff changeset
131 ngx_str_t *dcid);
7633
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parents:
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132
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133
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parents: 7681
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134 /********************************* DEBUG *************************************/
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135
7848
9d9531431c8c Removed outdated/incorrect comments and fixed style.
Vladimir Homutov <vl@nginx.com>
parents: 7842
diff changeset
136 /* #define NGX_QUIC_DEBUG_PACKETS */ /* dump packet contents */
9d9531431c8c Removed outdated/incorrect comments and fixed style.
Vladimir Homutov <vl@nginx.com>
parents: 7842
diff changeset
137 /* #define NGX_QUIC_DEBUG_FRAMES */ /* dump frames contents */
9d9531431c8c Removed outdated/incorrect comments and fixed style.
Vladimir Homutov <vl@nginx.com>
parents: 7842
diff changeset
138 /* #define NGX_QUIC_DEBUG_FRAMES_ALLOC */ /* log frames alloc/reuse/free */
9d9531431c8c Removed outdated/incorrect comments and fixed style.
Vladimir Homutov <vl@nginx.com>
parents: 7842
diff changeset
139 /* #define NGX_QUIC_DEBUG_CRYPTO */
7836
2f900ae486bc Debug cleanup.
Vladimir Homutov <vl@nginx.com>
parents: 7832
diff changeset
140
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parents: 7681
diff changeset
141 #if (NGX_DEBUG)
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Vladimir Homutov <vl@nginx.com>
parents: 7681
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142
8130
a0631204d88a QUIC: fixed build with clang and NGX_QUIC_DEBUG_CRYPTO enabled.
Vladimir Homutov <vl@nginx.com>
parents: 8129
diff changeset
143 #define ngx_quic_hexdump(log, fmt, data, len) \
a0631204d88a QUIC: fixed build with clang and NGX_QUIC_DEBUG_CRYPTO enabled.
Vladimir Homutov <vl@nginx.com>
parents: 8129
diff changeset
144 ngx_quic_hexdump_real(log, fmt, (u_char *) data, (size_t) len)
a0631204d88a QUIC: fixed build with clang and NGX_QUIC_DEBUG_CRYPTO enabled.
Vladimir Homutov <vl@nginx.com>
parents: 8129
diff changeset
145
8129
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Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
146 static ngx_inline
8130
a0631204d88a QUIC: fixed build with clang and NGX_QUIC_DEBUG_CRYPTO enabled.
Vladimir Homutov <vl@nginx.com>
parents: 8129
diff changeset
147 void ngx_quic_hexdump_real(ngx_log_t *log, const char *label, u_char *data,
8129
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Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
148 size_t len)
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Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
149 {
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Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
150 ngx_int_t m;
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Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
151 u_char buf[2048];
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Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
152
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Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
153 if (log->log_level & NGX_LOG_DEBUG_EVENT) {
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Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
154 m = ngx_hex_dump(buf, data, (len > 1024) ? 1024 : len) - buf;
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Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
155 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, log, 0,
6dac06dfe779 QUIC: inline function instead of macro for hexdump.
Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
156 "%s len:%uz data:%*s%s",
6dac06dfe779 QUIC: inline function instead of macro for hexdump.
Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
157 label, len, m, buf, len < 2048 ? "" : "...");
6dac06dfe779 QUIC: inline function instead of macro for hexdump.
Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
158 }
6dac06dfe779 QUIC: inline function instead of macro for hexdump.
Vladimir Homutov <vl@nginx.com>
parents: 8101
diff changeset
159 }
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Vladimir Homutov <vl@nginx.com>
parents: 7681
diff changeset
160
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Vladimir Homutov <vl@nginx.com>
parents: 7681
diff changeset
161 #else
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Vladimir Homutov <vl@nginx.com>
parents: 7681
diff changeset
162
7837
f175006124d0 Cleaned up hexdumps in debug output.
Vladimir Homutov <vl@nginx.com>
parents: 7836
diff changeset
163 #define ngx_quic_hexdump(log, fmt, data, len)
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Vladimir Homutov <vl@nginx.com>
parents: 7681
diff changeset
164
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Vladimir Homutov <vl@nginx.com>
parents: 7681
diff changeset
165 #endif
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diff changeset
166
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Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
167 #endif /* _NGX_EVENT_QUIC_H_INCLUDED_ */