Mercurial > hg > nginx-quic

annotate src/event/quic/ngx_event_quic_transport.h @ 8547:ad046179eb91 quic

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QUIC: handle EAGAIN properly on UDP sockets. Previously, the error was ignored leading to unnecessary retransmits. Now, unsent frames are returned into output queue, state is reset, and timer is started for the next send attempt.
author Vladimir Homutov <vl@nginx.com>
date Wed, 28 Jul 2021 17:23:18 +0300
parents 4009f120cad4
children de7b9af30fc6
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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7 #ifndef _NGX_EVENT_QUIC_TRANSPORT_H_INCLUDED_
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8 #define _NGX_EVENT_QUIC_TRANSPORT_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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15 /*
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16 * RFC 9000, 17.2. Long Header Packets
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17 * 17.3. Short Header Packets
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18 *
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19 * QUIC flags in first byte
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20 */
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21 #define NGX_QUIC_PKT_LONG 0x80 /* header form */
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22 #define NGX_QUIC_PKT_FIXED_BIT 0x40
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23 #define NGX_QUIC_PKT_TYPE 0x30 /* in long packet */
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24 #define NGX_QUIC_PKT_KPHASE 0x04 /* in short packet */
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25
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26 #define ngx_quic_long_pkt(flags) ((flags) & NGX_QUIC_PKT_LONG)
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27 #define ngx_quic_short_pkt(flags) (((flags) & NGX_QUIC_PKT_LONG) == 0)
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29 /* Long packet types */
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30 #define NGX_QUIC_PKT_INITIAL 0x00
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31 #define NGX_QUIC_PKT_ZRTT 0x10
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32 #define NGX_QUIC_PKT_HANDSHAKE 0x20
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33 #define NGX_QUIC_PKT_RETRY 0x30
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35 #define ngx_quic_pkt_in(flags) \
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36 (((flags) & NGX_QUIC_PKT_TYPE) == NGX_QUIC_PKT_INITIAL)
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37 #define ngx_quic_pkt_zrtt(flags) \
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38 (((flags) & NGX_QUIC_PKT_TYPE) == NGX_QUIC_PKT_ZRTT)
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39 #define ngx_quic_pkt_hs(flags) \
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40 (((flags) & NGX_QUIC_PKT_TYPE) == NGX_QUIC_PKT_HANDSHAKE)
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41 #define ngx_quic_pkt_retry(flags) \
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42 (((flags) & NGX_QUIC_PKT_TYPE) == NGX_QUIC_PKT_RETRY)
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43
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44 #define ngx_quic_pkt_rb_mask(flags) \
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45 (ngx_quic_long_pkt(flags) ? 0x0C : 0x18)
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46 #define ngx_quic_pkt_hp_mask(flags) \
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47 (ngx_quic_long_pkt(flags) ? 0x0F : 0x1F)
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49 #define ngx_quic_level_name(lvl) \
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50 (lvl == ssl_encryption_application) ? "app" \
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51 : (lvl == ssl_encryption_initial) ? "init" \
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52 : (lvl == ssl_encryption_handshake) ? "hs" : "early"
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53
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54 #define NGX_QUIC_MAX_CID_LEN 20
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55 #define NGX_QUIC_SERVER_CID_LEN NGX_QUIC_MAX_CID_LEN
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56
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57 /* 12.4. Frames and Frame Types */
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58 #define NGX_QUIC_FT_PADDING 0x00
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59 #define NGX_QUIC_FT_PING 0x01
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60 #define NGX_QUIC_FT_ACK 0x02
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61 #define NGX_QUIC_FT_ACK_ECN 0x03
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62 #define NGX_QUIC_FT_RESET_STREAM 0x04
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63 #define NGX_QUIC_FT_STOP_SENDING 0x05
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64 #define NGX_QUIC_FT_CRYPTO 0x06
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65 #define NGX_QUIC_FT_NEW_TOKEN 0x07
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66 #define NGX_QUIC_FT_STREAM 0x08
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67 #define NGX_QUIC_FT_STREAM1 0x09
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68 #define NGX_QUIC_FT_STREAM2 0x0A
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69 #define NGX_QUIC_FT_STREAM3 0x0B
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70 #define NGX_QUIC_FT_STREAM4 0x0C
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71 #define NGX_QUIC_FT_STREAM5 0x0D
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72 #define NGX_QUIC_FT_STREAM6 0x0E
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73 #define NGX_QUIC_FT_STREAM7 0x0F
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74 #define NGX_QUIC_FT_MAX_DATA 0x10
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75 #define NGX_QUIC_FT_MAX_STREAM_DATA 0x11
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76 #define NGX_QUIC_FT_MAX_STREAMS 0x12
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77 #define NGX_QUIC_FT_MAX_STREAMS2 0x13
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78 #define NGX_QUIC_FT_DATA_BLOCKED 0x14
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79 #define NGX_QUIC_FT_STREAM_DATA_BLOCKED 0x15
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80 #define NGX_QUIC_FT_STREAMS_BLOCKED 0x16
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81 #define NGX_QUIC_FT_STREAMS_BLOCKED2 0x17
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82 #define NGX_QUIC_FT_NEW_CONNECTION_ID 0x18
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83 #define NGX_QUIC_FT_RETIRE_CONNECTION_ID 0x19
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84 #define NGX_QUIC_FT_PATH_CHALLENGE 0x1A
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85 #define NGX_QUIC_FT_PATH_RESPONSE 0x1B
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86 #define NGX_QUIC_FT_CONNECTION_CLOSE 0x1C
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87 #define NGX_QUIC_FT_CONNECTION_CLOSE_APP 0x1D
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88 #define NGX_QUIC_FT_HANDSHAKE_DONE 0x1E
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90 #define NGX_QUIC_FT_LAST NGX_QUIC_FT_HANDSHAKE_DONE
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91
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92 /* 22.5. QUIC Transport Error Codes Registry */
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93 /* Keep in sync with ngx_quic_errors[] */
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94 #define NGX_QUIC_ERR_NO_ERROR 0x00
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95 #define NGX_QUIC_ERR_INTERNAL_ERROR 0x01
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96 #define NGX_QUIC_ERR_CONNECTION_REFUSED 0x02
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97 #define NGX_QUIC_ERR_FLOW_CONTROL_ERROR 0x03
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98 #define NGX_QUIC_ERR_STREAM_LIMIT_ERROR 0x04
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99 #define NGX_QUIC_ERR_STREAM_STATE_ERROR 0x05
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100 #define NGX_QUIC_ERR_FINAL_SIZE_ERROR 0x06
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101 #define NGX_QUIC_ERR_FRAME_ENCODING_ERROR 0x07
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102 #define NGX_QUIC_ERR_TRANSPORT_PARAMETER_ERROR 0x08
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103 #define NGX_QUIC_ERR_CONNECTION_ID_LIMIT_ERROR 0x09
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104 #define NGX_QUIC_ERR_PROTOCOL_VIOLATION 0x0A
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105 #define NGX_QUIC_ERR_INVALID_TOKEN 0x0B
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106 #define NGX_QUIC_ERR_APPLICATION_ERROR 0x0C
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107 #define NGX_QUIC_ERR_CRYPTO_BUFFER_EXCEEDED 0x0D
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108 #define NGX_QUIC_ERR_KEY_UPDATE_ERROR 0x0E
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109 #define NGX_QUIC_ERR_AEAD_LIMIT_REACHED 0x0F
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110 #define NGX_QUIC_ERR_NO_VIABLE_PATH 0x10
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111
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112 #define NGX_QUIC_ERR_LAST 0x11
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113 #define NGX_QUIC_ERR_CRYPTO_ERROR 0x100
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114
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115 #define NGX_QUIC_ERR_CRYPTO(e) (NGX_QUIC_ERR_CRYPTO_ERROR + (e))
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116
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117
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118 /* 22.3. QUIC Transport Parameters Registry */
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119 #define NGX_QUIC_TP_ORIGINAL_DCID 0x00
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120 #define NGX_QUIC_TP_MAX_IDLE_TIMEOUT 0x01
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121 #define NGX_QUIC_TP_SR_TOKEN 0x02
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122 #define NGX_QUIC_TP_MAX_UDP_PAYLOAD_SIZE 0x03
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123 #define NGX_QUIC_TP_INITIAL_MAX_DATA 0x04
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diff changeset
124 #define NGX_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_LOCAL 0x05
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diff changeset
125 #define NGX_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_REMOTE 0x06
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diff changeset
126 #define NGX_QUIC_TP_INITIAL_MAX_STREAM_DATA_UNI 0x07
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parents: 7711
diff changeset
127 #define NGX_QUIC_TP_INITIAL_MAX_STREAMS_BIDI 0x08
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diff changeset
128 #define NGX_QUIC_TP_INITIAL_MAX_STREAMS_UNI 0x09
7717
c217a907ce42 Added checks for permitted frame types.
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parents: 7715
diff changeset
129 #define NGX_QUIC_TP_ACK_DELAY_EXPONENT 0x0A
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diff changeset
130 #define NGX_QUIC_TP_MAX_ACK_DELAY 0x0B
c217a907ce42 Added checks for permitted frame types.
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diff changeset
131 #define NGX_QUIC_TP_DISABLE_ACTIVE_MIGRATION 0x0C
c217a907ce42 Added checks for permitted frame types.
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diff changeset
132 #define NGX_QUIC_TP_PREFERRED_ADDRESS 0x0D
c217a907ce42 Added checks for permitted frame types.
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parents: 7715
diff changeset
133 #define NGX_QUIC_TP_ACTIVE_CONNECTION_ID_LIMIT 0x0E
7912
6633f17044eb QUIC draft-28 transport parameters support.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7910
diff changeset
134 #define NGX_QUIC_TP_INITIAL_SCID 0x0F
6633f17044eb QUIC draft-28 transport parameters support.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7910
diff changeset
135 #define NGX_QUIC_TP_RETRY_SCID 0x10
7713
e9891e8ee975 Configurable transport parameters.
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diff changeset
136
7864
eebdda507ec3 Added tests for connection id lengths in initial packet.
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diff changeset
137 #define NGX_QUIC_CID_LEN_MIN 8
eebdda507ec3 Added tests for connection id lengths in initial packet.
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diff changeset
138 #define NGX_QUIC_CID_LEN_MAX 20
eebdda507ec3 Added tests for connection id lengths in initial packet.
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diff changeset
139
8155
38c7dd720774 QUIC: added ACK frame range support.
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diff changeset
140 #define NGX_QUIC_MAX_RANGES 10
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diff changeset
141
38c7dd720774 QUIC: added ACK frame range support.
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diff changeset
142
38c7dd720774 QUIC: added ACK frame range support.
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parents: 8148
diff changeset
143 typedef struct {
38c7dd720774 QUIC: added ACK frame range support.
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parents: 8148
diff changeset
144 uint64_t gap;
38c7dd720774 QUIC: added ACK frame range support.
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parents: 8148
diff changeset
145 uint64_t range;
38c7dd720774 QUIC: added ACK frame range support.
Vladimir Homutov <vl@nginx.com>
parents: 8148
diff changeset
146 } ngx_quic_ack_range_t;
38c7dd720774 QUIC: added ACK frame range support.
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diff changeset
147
38c7dd720774 QUIC: added ACK frame range support.
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diff changeset
148
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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diff changeset
149 typedef struct {
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parents:
diff changeset
150 uint64_t largest;
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parents:
diff changeset
151 uint64_t delay;
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parents:
diff changeset
152 uint64_t range_count;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
153 uint64_t first_range;
7792
1cdd53532309 ACK ranges processing.
Vladimir Homutov <vl@nginx.com>
parents: 7785
diff changeset
154 uint64_t ect0;
1cdd53532309 ACK ranges processing.
Vladimir Homutov <vl@nginx.com>
parents: 7785
diff changeset
155 uint64_t ect1;
1cdd53532309 ACK ranges processing.
Vladimir Homutov <vl@nginx.com>
parents: 7785
diff changeset
156 uint64_t ce;
8241
2dfc5ef29973 QUIC: introduced QUIC buffers.
Roman Arutyunyan <arut@nginx.com>
parents: 8213
diff changeset
157 uint64_t ranges_length;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
158 } ngx_quic_ack_frame_t;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
159
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parents:
diff changeset
160
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
161 typedef struct {
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
162 uint64_t seqnum;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
163 uint64_t retire;
7706
1f002206a59b Added boundaries checks into frame parser.
Vladimir Homutov <vl@nginx.com>
parents: 7703
diff changeset
164 uint8_t len;
7864
eebdda507ec3 Added tests for connection id lengths in initial packet.
Vladimir Homutov <vl@nginx.com>
parents: 7863
diff changeset
165 u_char cid[NGX_QUIC_CID_LEN_MAX];
8100
b31c02454539 QUIC: added stateless reset support.
Vladimir Homutov <vl@nginx.com>
parents: 8098
diff changeset
166 u_char srt[NGX_QUIC_SR_TOKEN_LEN];
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
167 } ngx_quic_new_conn_id_frame_t;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
168
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parents:
diff changeset
169
7861
52d0c4832570 Address validation using NEW_TOKEN frame.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7860
diff changeset
170 typedef struct {
52d0c4832570 Address validation using NEW_TOKEN frame.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7860
diff changeset
171 uint64_t length;
52d0c4832570 Address validation using NEW_TOKEN frame.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7860
diff changeset
172 u_char *data;
52d0c4832570 Address validation using NEW_TOKEN frame.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7860
diff changeset
173 } ngx_quic_new_token_frame_t;
52d0c4832570 Address validation using NEW_TOKEN frame.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7860
diff changeset
174
7810
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
175 /*
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
176 * common layout for CRYPTO and STREAM frames;
167d32476737 Crypto buffer frames reordering.
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diff changeset
177 * conceptually, CRYPTO frame is also a stream
167d32476737 Crypto buffer frames reordering.
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diff changeset
178 * frame lacking some properties
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
179 */
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
180 typedef struct {
7810
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
181 uint64_t offset;
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
182 uint64_t length;
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
183 } ngx_quic_ordered_frame_t;
167d32476737 Crypto buffer frames reordering.
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diff changeset
184
167d32476737 Crypto buffer frames reordering.
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diff changeset
185 typedef ngx_quic_ordered_frame_t ngx_quic_crypto_frame_t;
167d32476737 Crypto buffer frames reordering.
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diff changeset
186
167d32476737 Crypto buffer frames reordering.
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diff changeset
187
167d32476737 Crypto buffer frames reordering.
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diff changeset
188 typedef struct {
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
189 /* initial fields same as in ngx_quic_ordered_frame_t */
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diff changeset
190 uint64_t offset;
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
191 uint64_t length;
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
192
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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diff changeset
193 uint64_t stream_id;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
194 unsigned off:1;
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parents:
diff changeset
195 unsigned len:1;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
196 unsigned fin:1;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
197 } ngx_quic_stream_frame_t;
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parents:
diff changeset
198
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
199
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
200 typedef struct {
7703
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7702
diff changeset
201 uint64_t max_data;
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7702
diff changeset
202 } ngx_quic_max_data_frame_t;
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7702
diff changeset
203
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7702
diff changeset
204
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7702
diff changeset
205 typedef struct {
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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diff changeset
206 uint64_t error_code;
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parents:
diff changeset
207 uint64_t frame_type;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
208 ngx_str_t reason;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
209 } ngx_quic_close_frame_t;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
210
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
211
7697
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
212 typedef struct {
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
213 uint64_t id;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
214 uint64_t error_code;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
215 uint64_t final_size;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
216 } ngx_quic_reset_stream_frame_t;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
217
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
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diff changeset
218
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
219 typedef struct {
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
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parents: 7690
diff changeset
220 uint64_t id;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
221 uint64_t error_code;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
222 } ngx_quic_stop_sending_frame_t;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
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diff changeset
223
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
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diff changeset
224
7702
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
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diff changeset
225 typedef struct {
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
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diff changeset
226 uint64_t limit;
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
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diff changeset
227 ngx_uint_t bidi; /* unsigned: bidi:1 */
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
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parents: 7697
diff changeset
228 } ngx_quic_streams_blocked_frame_t;
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
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diff changeset
229
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
parents: 7697
diff changeset
230
7711
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
231 typedef struct {
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
232 uint64_t limit;
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
233 ngx_uint_t bidi; /* unsigned: bidi:1 */
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
234 } ngx_quic_max_streams_frame_t;
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
235
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
236
7723
085fd6e68367 Implemented parsing of remaining frame types.
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diff changeset
237 typedef struct {
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
238 uint64_t id;
085fd6e68367 Implemented parsing of remaining frame types.
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diff changeset
239 uint64_t limit;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
240 } ngx_quic_max_stream_data_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
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diff changeset
241
085fd6e68367 Implemented parsing of remaining frame types.
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diff changeset
242
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
243 typedef struct {
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parents: 7717
diff changeset
244 uint64_t limit;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
245 } ngx_quic_data_blocked_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
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diff changeset
246
085fd6e68367 Implemented parsing of remaining frame types.
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diff changeset
247
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
248 typedef struct {
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
249 uint64_t id;
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
250 uint64_t limit;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
251 } ngx_quic_stream_data_blocked_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
252
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
253
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
254 typedef struct {
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
255 uint64_t sequence_number;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
256 } ngx_quic_retire_cid_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
257
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
258
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
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diff changeset
259 typedef struct {
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
260 u_char data[8];
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
261 } ngx_quic_path_challenge_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
262
085fd6e68367 Implemented parsing of remaining frame types.
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diff changeset
263
7690
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parents:
diff changeset
264 typedef struct ngx_quic_frame_s ngx_quic_frame_t;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
265
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
266 struct ngx_quic_frame_s {
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
267 ngx_uint_t type;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
268 enum ssl_encryption_level_t level;
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
269 ngx_queue_t queue;
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
270 uint64_t pnum;
8026
4604e6043657 QUIC: packet based bytes_in_flight accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7994
diff changeset
271 size_t plen;
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
272 ngx_msec_t first;
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
273 ngx_msec_t last;
7994
f9fbeb4ee0de QUIC: added limit of queued data.
Vladimir Homutov <vl@nginx.com>
parents: 7988
diff changeset
274 ssize_t len;
8291
9ed95726b99b QUIC: send PING frames on PTO expiration.
Roman Arutyunyan <arut@nginx.com>
parents: 8285
diff changeset
275 unsigned need_ack:1;
8547
ad046179eb91 QUIC: handle EAGAIN properly on UDP sockets.
Vladimir Homutov <vl@nginx.com>
parents: 8545
diff changeset
276 unsigned pkt_need_ack:1;
8291
9ed95726b99b QUIC: send PING frames on PTO expiration.
Roman Arutyunyan <arut@nginx.com>
parents: 8285
diff changeset
277 unsigned flush:1;
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
278
8241
2dfc5ef29973 QUIC: introduced QUIC buffers.
Roman Arutyunyan <arut@nginx.com>
parents: 8213
diff changeset
279 ngx_chain_t *data;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
280 union {
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
281 ngx_quic_ack_frame_t ack;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
282 ngx_quic_crypto_frame_t crypto;
7810
167d32476737 Crypto buffer frames reordering.
Vladimir Homutov <vl@nginx.com>
parents: 7792
diff changeset
283 ngx_quic_ordered_frame_t ord;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
284 ngx_quic_new_conn_id_frame_t ncid;
7861
52d0c4832570 Address validation using NEW_TOKEN frame.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7860
diff changeset
285 ngx_quic_new_token_frame_t token;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
286 ngx_quic_stream_frame_t stream;
7703
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7702
diff changeset
287 ngx_quic_max_data_frame_t max_data;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
288 ngx_quic_close_frame_t close;
7697
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
289 ngx_quic_reset_stream_frame_t reset_stream;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents: 7690
diff changeset
290 ngx_quic_stop_sending_frame_t stop_sending;
7702
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
parents: 7697
diff changeset
291 ngx_quic_streams_blocked_frame_t streams_blocked;
7711
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
292 ngx_quic_max_streams_frame_t max_streams;
7723
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
293 ngx_quic_max_stream_data_frame_t max_stream_data;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
294 ngx_quic_data_blocked_frame_t data_blocked;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
295 ngx_quic_stream_data_blocked_frame_t stream_data_blocked;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
296 ngx_quic_retire_cid_frame_t retire_cid;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
297 ngx_quic_path_challenge_frame_t path_challenge;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
298 ngx_quic_path_challenge_frame_t path_response;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
299 } u;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
300 };
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
301
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
302
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
303 typedef struct {
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
304 ngx_log_t *log;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
305
8191
9c3be23ddbe7 QUIC: refactored key handling.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8172
diff changeset
306 ngx_quic_keys_t *keys;
9c3be23ddbe7 QUIC: refactored key handling.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8172
diff changeset
307
8162
c5ea341f705a QUIC: optimized acknowledgement generation.
Vladimir Homutov <vl@nginx.com>
parents: 8155
diff changeset
308 ngx_msec_t received;
7773
dc7ac778aafe Introduced packet namespace in QUIC connection.
Vladimir Homutov <vl@nginx.com>
parents: 7764
diff changeset
309 uint64_t number;
7781
fdda518d10ba Proper handling of packet number in header.
Vladimir Homutov <vl@nginx.com>
parents: 7774
diff changeset
310 uint8_t num_len;
fdda518d10ba Proper handling of packet number in header.
Vladimir Homutov <vl@nginx.com>
parents: 7774
diff changeset
311 uint32_t trunc;
7706
1f002206a59b Added boundaries checks into frame parser.
Vladimir Homutov <vl@nginx.com>
parents: 7703
diff changeset
312 uint8_t flags;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
313 uint32_t version;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
314 ngx_str_t token;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
315 enum ssl_encryption_level_t level;
7862
fb7422074258 Added generation of CC frames with error on connection termination.
Vladimir Homutov <vl@nginx.com>
parents: 7861
diff changeset
316 ngx_uint_t error;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
317
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
318 /* filled in by parser */
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
319 ngx_buf_t *raw; /* udp datagram */
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
320
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
321 u_char *data; /* quic packet */
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
322 size_t len;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
323
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
324 /* cleartext fields */
7860
7ea34e13937f Address validation using Retry packets.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7848
diff changeset
325 ngx_str_t odcid; /* retry packet tag */
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
326 ngx_str_t dcid;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
327 ngx_str_t scid;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
328 uint64_t pn;
7754
ebd5c71b9f02 Got rid of memory allocation in decryption.
Vladimir Homutov <vl@nginx.com>
parents: 7752
diff changeset
329 u_char *plaintext;
ebd5c71b9f02 Got rid of memory allocation in decryption.
Vladimir Homutov <vl@nginx.com>
parents: 7752
diff changeset
330 ngx_str_t payload; /* decrypted data */
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
331
7785
29354c6fc5f2 TLS Key Update in QUIC.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7781
diff changeset
332 unsigned need_ack:1;
29354c6fc5f2 TLS Key Update in QUIC.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7781
diff changeset
333 unsigned key_phase:1;
29354c6fc5f2 TLS Key Update in QUIC.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7781
diff changeset
334 unsigned key_update:1;
8139
07971f870879 QUIC: added debug message with final packet processing status.
Vladimir Homutov <vl@nginx.com>
parents: 8100
diff changeset
335 unsigned parsed:1;
07971f870879 QUIC: added debug message with final packet processing status.
Vladimir Homutov <vl@nginx.com>
parents: 8100
diff changeset
336 unsigned decrypted:1;
8279
dffb66fb783b QUIC: stateless retry.
Vladimir Homutov <vl@nginx.com>
parents: 8270
diff changeset
337 unsigned validated:1;
dffb66fb783b QUIC: stateless retry.
Vladimir Homutov <vl@nginx.com>
parents: 8270
diff changeset
338 unsigned retried:1;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
339 } ngx_quic_header_t;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
340
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
341
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
342 u_char *ngx_quic_error_text(uint64_t error_code);
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
343
8098
d0d3fc0697a0 QUIC: packet processing refactoring.
Vladimir Homutov <vl@nginx.com>
parents: 8076
diff changeset
344 ngx_int_t ngx_quic_parse_packet(ngx_quic_header_t *pkt);
d0d3fc0697a0 QUIC: packet processing refactoring.
Vladimir Homutov <vl@nginx.com>
parents: 8076
diff changeset
345
8060
fc89d02bdca2 QUIC: added version negotiation support.
Vladimir Homutov <vl@nginx.com>
parents: 8026
diff changeset
346 size_t ngx_quic_create_version_negotiation(ngx_quic_header_t *pkt, u_char *out);
fc89d02bdca2 QUIC: added version negotiation support.
Vladimir Homutov <vl@nginx.com>
parents: 8026
diff changeset
347
8212
05b1ee464350 QUIC: hide header creation internals in ngx_event_quic_transport.c.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8211
diff changeset
348 size_t ngx_quic_create_header(ngx_quic_header_t *pkt, u_char *out,
7751
f85749b60e58 Removed memory allocations from encryption code.
Vladimir Homutov <vl@nginx.com>
parents: 7726
diff changeset
349 size_t pkt_len, u_char **pnp);
f85749b60e58 Removed memory allocations from encryption code.
Vladimir Homutov <vl@nginx.com>
parents: 7726
diff changeset
350
7860
7ea34e13937f Address validation using Retry packets.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7848
diff changeset
351 size_t ngx_quic_create_retry_itag(ngx_quic_header_t *pkt, u_char *out,
7ea34e13937f Address validation using Retry packets.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7848
diff changeset
352 u_char **start);
7ea34e13937f Address validation using Retry packets.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7848
diff changeset
353
7706
1f002206a59b Added boundaries checks into frame parser.
Vladimir Homutov <vl@nginx.com>
parents: 7703
diff changeset
354 ssize_t ngx_quic_parse_frame(ngx_quic_header_t *pkt, u_char *start, u_char *end,
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
355 ngx_quic_frame_t *frame);
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
356 ssize_t ngx_quic_create_frame(u_char *p, ngx_quic_frame_t *f);
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
357
8163
b3d9e57d0f62 QUIC: single function for frame debug logging.
Vladimir Homutov <vl@nginx.com>
parents: 8162
diff changeset
358 ssize_t ngx_quic_parse_ack_range(ngx_log_t *log, u_char *start,
7792
1cdd53532309 ACK ranges processing.
Vladimir Homutov <vl@nginx.com>
parents: 7785
diff changeset
359 u_char *end, uint64_t *gap, uint64_t *range);
8172
867c189f875d QUIC: unified range format for rx and tx ACK frames.
Roman Arutyunyan <arut@nginx.com>
parents: 8163
diff changeset
360 size_t ngx_quic_create_ack_range(u_char *p, uint64_t gap, uint64_t range);
7792
1cdd53532309 ACK ranges processing.
Vladimir Homutov <vl@nginx.com>
parents: 7785
diff changeset
361
7726
f388c0ad3477 Added processing of client transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 7723
diff changeset
362 ngx_int_t ngx_quic_parse_transport_params(u_char *p, u_char *end,
f388c0ad3477 Added processing of client transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 7723
diff changeset
363 ngx_quic_tp_t *tp, ngx_log_t *log);
7713
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 7711
diff changeset
364 ssize_t ngx_quic_create_transport_params(u_char *p, u_char *end,
7917
90b02ff6b003 Compatibility with BoringSSL master branch.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7912
diff changeset
365 ngx_quic_tp_t *tp, size_t *clen);
7713
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 7711
diff changeset
366
8269
7df607cb2d11 QUIC: ngx_quic_bpf module.
Vladimir Homutov <vl@nginx.com>
parents: 8266
diff changeset
367 void ngx_quic_dcid_encode_key(u_char *dcid, uint64_t key);
7df607cb2d11 QUIC: ngx_quic_bpf module.
Vladimir Homutov <vl@nginx.com>
parents: 8266
diff changeset
368
8270
c57b6fc90f90 QUIC: fixed header protection macro name.
Vladimir Homutov <vl@nginx.com>
parents: 8269
diff changeset
369 #endif /* _NGX_EVENT_QUIC_TRANSPORT_H_INCLUDED_ */