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annotate src/event/ngx_event_quic_transport.h @ 8162:c5ea341f705a quic

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QUIC: optimized acknowledgement generation. For application level packets, only every second packet is now acknowledged, respecting max ack delay. 13.2.1 Sending ACK Frames In order to assist loss detection at the sender, an endpoint SHOULD generate and send an ACK frame without delay when it receives an ack- eliciting packet either: * when the received packet has a packet number less than another ack-eliciting packet that has been received, or * when the packet has a packet number larger than the highest- numbered ack-eliciting packet that has been received and there are missing packets between that packet and this packet. 13.2.2. Acknowledgement Frequency A receiver SHOULD send an ACK frame after receiving at least two ack-eliciting packets.
author Vladimir Homutov <vl@nginx.com>
date Fri, 23 Oct 2020 17:08:50 +0300
parents 38c7dd720774
children b3d9e57d0f62
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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_WIRE_H_INCLUDED_
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8 #define _NGX_EVENT_QUIC_WIRE_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 /* QUIC flags in first byte, see quic-transport 17.2 and 17.3 */
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16
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17 #define NGX_QUIC_PKT_LONG 0x80 /* header form */
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18 #define NGX_QUIC_PKT_FIXED_BIT 0x40
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19 #define NGX_QUIC_PKT_TYPE 0x30 /* in long packet */
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20 #define NGX_QUIC_PKT_KPHASE 0x04 /* in short packet */
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22 #define NGX_QUIC_PKT_LONG_RESERVED_BIT 0x0C
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23 #define NGX_QUIC_PKT_SHORT_RESERVED_BIT 0x18
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25 #define ngx_quic_long_pkt(flags) ((flags) & NGX_QUIC_PKT_LONG)
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26 #define ngx_quic_short_pkt(flags) (((flags) & NGX_QUIC_PKT_LONG) == 0)
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28 /* Long packet types */
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29 #define NGX_QUIC_PKT_INITIAL 0x00
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30 #define NGX_QUIC_PKT_ZRTT 0x10
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31 #define NGX_QUIC_PKT_HANDSHAKE 0x20
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32 #define NGX_QUIC_PKT_RETRY 0x30
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34 #define ngx_quic_pkt_in(flags) \
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35 (((flags) & NGX_QUIC_PKT_TYPE) == NGX_QUIC_PKT_INITIAL)
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36 #define ngx_quic_pkt_zrtt(flags) \
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37 (((flags) & NGX_QUIC_PKT_TYPE) == NGX_QUIC_PKT_ZRTT)
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38 #define ngx_quic_pkt_hs(flags) \
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39 (((flags) & NGX_QUIC_PKT_TYPE) == NGX_QUIC_PKT_HANDSHAKE)
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40 #define ngx_quic_pkt_retry(flags) \
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41 (((flags) & NGX_QUIC_PKT_TYPE) == NGX_QUIC_PKT_RETRY)
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44 /* 12.4. Frames and Frame Types */
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45 #define NGX_QUIC_FT_PADDING 0x00
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46 #define NGX_QUIC_FT_PING 0x01
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47 #define NGX_QUIC_FT_ACK 0x02
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48 #define NGX_QUIC_FT_ACK_ECN 0x03
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49 #define NGX_QUIC_FT_RESET_STREAM 0x04
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50 #define NGX_QUIC_FT_STOP_SENDING 0x05
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51 #define NGX_QUIC_FT_CRYPTO 0x06
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52 #define NGX_QUIC_FT_NEW_TOKEN 0x07
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53 #define NGX_QUIC_FT_STREAM0 0x08
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54 #define NGX_QUIC_FT_STREAM1 0x09
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55 #define NGX_QUIC_FT_STREAM2 0x0A
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56 #define NGX_QUIC_FT_STREAM3 0x0B
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57 #define NGX_QUIC_FT_STREAM4 0x0C
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58 #define NGX_QUIC_FT_STREAM5 0x0D
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59 #define NGX_QUIC_FT_STREAM6 0x0E
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60 #define NGX_QUIC_FT_STREAM7 0x0F
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61 #define NGX_QUIC_FT_MAX_DATA 0x10
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62 #define NGX_QUIC_FT_MAX_STREAM_DATA 0x11
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63 #define NGX_QUIC_FT_MAX_STREAMS 0x12
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64 #define NGX_QUIC_FT_MAX_STREAMS2 0x13
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65 #define NGX_QUIC_FT_DATA_BLOCKED 0x14
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66 #define NGX_QUIC_FT_STREAM_DATA_BLOCKED 0x15
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67 #define NGX_QUIC_FT_STREAMS_BLOCKED 0x16
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68 #define NGX_QUIC_FT_STREAMS_BLOCKED2 0x17
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69 #define NGX_QUIC_FT_NEW_CONNECTION_ID 0x18
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70 #define NGX_QUIC_FT_RETIRE_CONNECTION_ID 0x19
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71 #define NGX_QUIC_FT_PATH_CHALLENGE 0x1A
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72 #define NGX_QUIC_FT_PATH_RESPONSE 0x1B
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73 #define NGX_QUIC_FT_CONNECTION_CLOSE 0x1C
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74 #define NGX_QUIC_FT_CONNECTION_CLOSE_APP 0x1D
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75 #define NGX_QUIC_FT_HANDSHAKE_DONE 0x1E
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77 /* 22.4. QUIC Transport Error Codes Registry */
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78 /* Keep in sync with ngx_quic_errors[] */
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79 #define NGX_QUIC_ERR_NO_ERROR 0x00
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80 #define NGX_QUIC_ERR_INTERNAL_ERROR 0x01
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81 #define NGX_QUIC_ERR_CONNECTION_REFUSED 0x02
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82 #define NGX_QUIC_ERR_FLOW_CONTROL_ERROR 0x03
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83 #define NGX_QUIC_ERR_STREAM_LIMIT_ERROR 0x04
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84 #define NGX_QUIC_ERR_STREAM_STATE_ERROR 0x05
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85 #define NGX_QUIC_ERR_FINAL_SIZE_ERROR 0x06
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86 #define NGX_QUIC_ERR_FRAME_ENCODING_ERROR 0x07
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87 #define NGX_QUIC_ERR_TRANSPORT_PARAMETER_ERROR 0x08
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88 #define NGX_QUIC_ERR_CONNECTION_ID_LIMIT_ERROR 0x09
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89 #define NGX_QUIC_ERR_PROTOCOL_VIOLATION 0x0A
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90 #define NGX_QUIC_ERR_INVALID_TOKEN 0x0B
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91 #define NGX_QUIC_ERR_APPLICATION_ERROR 0x0C
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92 #define NGX_QUIC_ERR_CRYPTO_BUFFER_EXCEEDED 0x0D
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93 #define NGX_QUIC_ERR_KEY_UPDATE_ERROR 0x0E
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95 #define NGX_QUIC_ERR_LAST 0x0F
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96 #define NGX_QUIC_ERR_CRYPTO_ERROR 0x100
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97
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98 #define NGX_QUIC_ERR_CRYPTO(e) (NGX_QUIC_ERR_CRYPTO_ERROR + (e))
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101 /* Transport parameters */
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102 #define NGX_QUIC_TP_ORIGINAL_DCID 0x00
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103 #define NGX_QUIC_TP_MAX_IDLE_TIMEOUT 0x01
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104 #define NGX_QUIC_TP_SR_TOKEN 0x02
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105 #define NGX_QUIC_TP_MAX_UDP_PAYLOAD_SIZE 0x03
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106 #define NGX_QUIC_TP_INITIAL_MAX_DATA 0x04
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107 #define NGX_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_LOCAL 0x05
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108 #define NGX_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_REMOTE 0x06
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109 #define NGX_QUIC_TP_INITIAL_MAX_STREAM_DATA_UNI 0x07
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110 #define NGX_QUIC_TP_INITIAL_MAX_STREAMS_BIDI 0x08
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111 #define NGX_QUIC_TP_INITIAL_MAX_STREAMS_UNI 0x09
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112 #define NGX_QUIC_TP_ACK_DELAY_EXPONENT 0x0A
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113 #define NGX_QUIC_TP_MAX_ACK_DELAY 0x0B
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114 #define NGX_QUIC_TP_DISABLE_ACTIVE_MIGRATION 0x0C
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115 #define NGX_QUIC_TP_PREFERRED_ADDRESS 0x0D
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116 #define NGX_QUIC_TP_ACTIVE_CONNECTION_ID_LIMIT 0x0E
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117 #define NGX_QUIC_TP_INITIAL_SCID 0x0F
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118 #define NGX_QUIC_TP_RETRY_SCID 0x10
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119
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120 #define NGX_QUIC_CID_LEN_MIN 8
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121 #define NGX_QUIC_CID_LEN_MAX 20
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122
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38c7dd720774 QUIC: added ACK frame range support.
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diff changeset
123 #define NGX_QUIC_MAX_RANGES 10
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diff changeset
124
38c7dd720774 QUIC: added ACK frame range support.
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diff changeset
125
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diff changeset
126 typedef struct {
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diff changeset
127 uint64_t gap;
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diff changeset
128 uint64_t range;
38c7dd720774 QUIC: added ACK frame range support.
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diff changeset
129 } ngx_quic_ack_range_t;
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130
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131
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132 typedef struct {
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133 uint64_t largest;
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parents:
diff changeset
134 uint64_t delay;
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parents:
diff changeset
135 uint64_t range_count;
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parents:
diff changeset
136 uint64_t first_range;
7792
1cdd53532309 ACK ranges processing.
Vladimir Homutov <vl@nginx.com>
parents: 7785
diff changeset
137 uint64_t ect0;
1cdd53532309 ACK ranges processing.
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parents: 7785
diff changeset
138 uint64_t ect1;
1cdd53532309 ACK ranges processing.
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diff changeset
139 uint64_t ce;
8155
38c7dd720774 QUIC: added ACK frame range support.
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diff changeset
140 u_char *ranges_start;
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diff changeset
141 u_char *ranges_end;
7690
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diff changeset
142 } ngx_quic_ack_frame_t;
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143
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144
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diff changeset
145 typedef struct {
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diff changeset
146 uint64_t seqnum;
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parents:
diff changeset
147 uint64_t retire;
7706
1f002206a59b Added boundaries checks into frame parser.
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diff changeset
148 uint8_t len;
7864
eebdda507ec3 Added tests for connection id lengths in initial packet.
Vladimir Homutov <vl@nginx.com>
parents: 7863
diff changeset
149 u_char cid[NGX_QUIC_CID_LEN_MAX];
8100
b31c02454539 QUIC: added stateless reset support.
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parents: 8098
diff changeset
150 u_char srt[NGX_QUIC_SR_TOKEN_LEN];
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diff changeset
151 } ngx_quic_new_conn_id_frame_t;
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152
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153
7861
52d0c4832570 Address validation using NEW_TOKEN frame.
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diff changeset
154 typedef struct {
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diff changeset
155 uint64_t length;
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diff changeset
156 u_char *data;
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diff changeset
157 } ngx_quic_new_token_frame_t;
52d0c4832570 Address validation using NEW_TOKEN frame.
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diff changeset
158
7810
167d32476737 Crypto buffer frames reordering.
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diff changeset
159 /*
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diff changeset
160 * common layout for CRYPTO and STREAM frames;
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diff changeset
161 * conceptually, CRYPTO frame is also a stream
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diff changeset
162 * frame lacking some properties
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diff changeset
163 */
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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164 typedef struct {
7810
167d32476737 Crypto buffer frames reordering.
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diff changeset
165 uint64_t offset;
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
166 uint64_t length;
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parents: 7792
diff changeset
167 u_char *data;
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
168 } ngx_quic_ordered_frame_t;
167d32476737 Crypto buffer frames reordering.
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diff changeset
169
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parents: 7792
diff changeset
170 typedef ngx_quic_ordered_frame_t ngx_quic_crypto_frame_t;
167d32476737 Crypto buffer frames reordering.
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diff changeset
171
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diff changeset
172
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
173 typedef struct {
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parents: 7792
diff changeset
174 /* initial fields same as in ngx_quic_ordered_frame_t */
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diff changeset
175 uint64_t offset;
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
176 uint64_t length;
167d32476737 Crypto buffer frames reordering.
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diff changeset
177 u_char *data;
167d32476737 Crypto buffer frames reordering.
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parents: 7792
diff changeset
178
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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diff changeset
179 uint8_t type;
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parents:
diff changeset
180 uint64_t stream_id;
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parents:
diff changeset
181 unsigned off:1;
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parents:
diff changeset
182 unsigned len:1;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
183 unsigned fin:1;
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
184 } ngx_quic_stream_frame_t;
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diff changeset
185
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parents:
diff changeset
186
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
187 typedef struct {
7703
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
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diff changeset
188 uint64_t max_data;
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
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diff changeset
189 } ngx_quic_max_data_frame_t;
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
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diff changeset
190
ff540f13d95d MAX_DATA frame parser/handler.
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diff changeset
191
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7702
diff changeset
192 typedef struct {
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
193 uint64_t error_code;
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parents:
diff changeset
194 uint64_t frame_type;
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
195 ngx_str_t reason;
7953
e0f92f68e018 QUIC: Introduced ngx_quic_finalize_connection().
Roman Arutyunyan <arut@nginx.com>
parents: 7942
diff changeset
196 ngx_uint_t app; /* unsigned app:1; */
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
197 } ngx_quic_close_frame_t;
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198
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diff changeset
199
7697
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
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diff changeset
200 typedef struct {
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diff changeset
201 uint64_t id;
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Vladimir Homutov <vl@nginx.com>
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diff changeset
202 uint64_t error_code;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
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diff changeset
203 uint64_t final_size;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
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diff changeset
204 } ngx_quic_reset_stream_frame_t;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
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diff changeset
205
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
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diff changeset
206
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
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diff changeset
207 typedef struct {
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diff changeset
208 uint64_t id;
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diff changeset
209 uint64_t error_code;
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diff changeset
210 } ngx_quic_stop_sending_frame_t;
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
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diff changeset
211
78540e2160d0 Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
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diff changeset
212
7702
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
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diff changeset
213 typedef struct {
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
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diff changeset
214 uint64_t limit;
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
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diff changeset
215 ngx_uint_t bidi; /* unsigned: bidi:1 */
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
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parents: 7697
diff changeset
216 } ngx_quic_streams_blocked_frame_t;
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
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parents: 7697
diff changeset
217
d3b26c3bea22 Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
parents: 7697
diff changeset
218
7711
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
219 typedef struct {
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
220 uint64_t limit;
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
221 ngx_uint_t bidi; /* unsigned: bidi:1 */
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
222 } ngx_quic_max_streams_frame_t;
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
223
a14afe21e692 Double MAX_STREAMS on STREAMS_BLOCKED.
Roman Arutyunyan <arut@nginx.com>
parents: 7707
diff changeset
224
7723
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
225 typedef struct {
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
226 uint64_t id;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
227 uint64_t limit;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
228 } ngx_quic_max_stream_data_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
229
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
230
085fd6e68367 Implemented parsing of remaining frame types.
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parents: 7717
diff changeset
231 typedef struct {
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
232 uint64_t limit;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
233 } ngx_quic_data_blocked_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
234
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
235
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
236 typedef struct {
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
237 uint64_t id;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
238 uint64_t limit;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
239 } ngx_quic_stream_data_blocked_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
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diff changeset
240
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
241
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
242 typedef struct {
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
243 uint64_t sequence_number;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
244 } ngx_quic_retire_cid_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
245
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
246
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
247 typedef struct {
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
248 u_char data[8];
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
249 } ngx_quic_path_challenge_frame_t;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
250
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
251
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
252 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
253
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
254 struct ngx_quic_frame_s {
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
255 ngx_uint_t type;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
256 enum ssl_encryption_level_t level;
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
257 ngx_queue_t queue;
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
258 uint64_t pnum;
8026
4604e6043657 QUIC: packet based bytes_in_flight accounting.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7994
diff changeset
259 size_t plen;
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
260 ngx_msec_t first;
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
261 ngx_msec_t last;
7994
f9fbeb4ee0de QUIC: added limit of queued data.
Vladimir Homutov <vl@nginx.com>
parents: 7988
diff changeset
262 ssize_t len;
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
263 ngx_uint_t need_ack;
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
264 /* unsigned need_ack:1; */
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
265
7752
c7185bc5b4d9 QUIC frames reuse.
Roman Arutyunyan <arut@nginx.com>
parents: 7751
diff changeset
266 u_char *data;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
267 union {
ae35ccba7aa6 Extracted transport part of the code into separate file.
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parents:
diff changeset
268 ngx_quic_ack_frame_t ack;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
269 ngx_quic_crypto_frame_t crypto;
7810
167d32476737 Crypto buffer frames reordering.
Vladimir Homutov <vl@nginx.com>
parents: 7792
diff changeset
270 ngx_quic_ordered_frame_t ord;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
271 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
272 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
273 ngx_quic_stream_frame_t stream;
7703
ff540f13d95d MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7702
diff changeset
274 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
275 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
276 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
277 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
278 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
279 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
280 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
281 ngx_quic_data_blocked_frame_t data_blocked;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
282 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
283 ngx_quic_retire_cid_frame_t retire_cid;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
284 ngx_quic_path_challenge_frame_t path_challenge;
085fd6e68367 Implemented parsing of remaining frame types.
Vladimir Homutov <vl@nginx.com>
parents: 7717
diff changeset
285 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
286 } u;
7848
9d9531431c8c Removed outdated/incorrect comments and fixed style.
Vladimir Homutov <vl@nginx.com>
parents: 7847
diff changeset
287 u_char info[128]; /* for debug */
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
288 };
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
289
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
290
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
291 typedef struct {
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
292 ngx_log_t *log;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
293
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
294 struct ngx_quic_secret_s *secret;
7785
29354c6fc5f2 TLS Key Update in QUIC.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7781
diff changeset
295 struct ngx_quic_secret_s *next;
8162
c5ea341f705a QUIC: optimized acknowledgement generation.
Vladimir Homutov <vl@nginx.com>
parents: 8155
diff changeset
296 ngx_msec_t received;
7773
dc7ac778aafe Introduced packet namespace in QUIC connection.
Vladimir Homutov <vl@nginx.com>
parents: 7764
diff changeset
297 uint64_t number;
7781
fdda518d10ba Proper handling of packet number in header.
Vladimir Homutov <vl@nginx.com>
parents: 7774
diff changeset
298 uint8_t num_len;
fdda518d10ba Proper handling of packet number in header.
Vladimir Homutov <vl@nginx.com>
parents: 7774
diff changeset
299 uint32_t trunc;
7706
1f002206a59b Added boundaries checks into frame parser.
Vladimir Homutov <vl@nginx.com>
parents: 7703
diff changeset
300 uint8_t flags;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
301 uint32_t version;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
302 ngx_str_t token;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
303 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
304 ngx_uint_t error;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
305
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
306 /* filled in by parser */
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
307 ngx_buf_t *raw; /* udp datagram */
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
308
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
309 u_char *data; /* quic packet */
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
310 size_t len;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
311
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
312 /* cleartext fields */
7860
7ea34e13937f Address validation using Retry packets.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7848
diff changeset
313 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
314 ngx_str_t dcid;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
315 ngx_str_t scid;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
316 uint64_t pn;
7754
ebd5c71b9f02 Got rid of memory allocation in decryption.
Vladimir Homutov <vl@nginx.com>
parents: 7752
diff changeset
317 u_char *plaintext;
ebd5c71b9f02 Got rid of memory allocation in decryption.
Vladimir Homutov <vl@nginx.com>
parents: 7752
diff changeset
318 ngx_str_t payload; /* decrypted data */
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
319
7785
29354c6fc5f2 TLS Key Update in QUIC.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7781
diff changeset
320 unsigned need_ack:1;
29354c6fc5f2 TLS Key Update in QUIC.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7781
diff changeset
321 unsigned key_phase:1;
29354c6fc5f2 TLS Key Update in QUIC.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7781
diff changeset
322 unsigned key_update:1;
8139
07971f870879 QUIC: added debug message with final packet processing status.
Vladimir Homutov <vl@nginx.com>
parents: 8100
diff changeset
323 unsigned parsed:1;
07971f870879 QUIC: added debug message with final packet processing status.
Vladimir Homutov <vl@nginx.com>
parents: 8100
diff changeset
324 unsigned decrypted:1;
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
325 } ngx_quic_header_t;
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
326
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
327
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
328 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
329
8098
d0d3fc0697a0 QUIC: packet processing refactoring.
Vladimir Homutov <vl@nginx.com>
parents: 8076
diff changeset
330 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
331
8060
fc89d02bdca2 QUIC: added version negotiation support.
Vladimir Homutov <vl@nginx.com>
parents: 8026
diff changeset
332 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
333
7751
f85749b60e58 Removed memory allocations from encryption code.
Vladimir Homutov <vl@nginx.com>
parents: 7726
diff changeset
334 size_t ngx_quic_create_long_header(ngx_quic_header_t *pkt, u_char *out,
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
335 size_t pkt_len, u_char **pnp);
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
336
7751
f85749b60e58 Removed memory allocations from encryption code.
Vladimir Homutov <vl@nginx.com>
parents: 7726
diff changeset
337 size_t ngx_quic_create_short_header(ngx_quic_header_t *pkt, u_char *out,
f85749b60e58 Removed memory allocations from encryption code.
Vladimir Homutov <vl@nginx.com>
parents: 7726
diff changeset
338 size_t pkt_len, u_char **pnp);
f85749b60e58 Removed memory allocations from encryption code.
Vladimir Homutov <vl@nginx.com>
parents: 7726
diff changeset
339
7860
7ea34e13937f Address validation using Retry packets.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7848
diff changeset
340 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
341 u_char **start);
7ea34e13937f Address validation using Retry packets.
Sergey Kandaurov <pluknet@nginx.com>
parents: 7848
diff changeset
342
7706
1f002206a59b Added boundaries checks into frame parser.
Vladimir Homutov <vl@nginx.com>
parents: 7703
diff changeset
343 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
344 ngx_quic_frame_t *frame);
7774
e10b4c61420f Implemented retransmission and retransmit queue.
Vladimir Homutov <vl@nginx.com>
parents: 7773
diff changeset
345 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
346
7792
1cdd53532309 ACK ranges processing.
Vladimir Homutov <vl@nginx.com>
parents: 7785
diff changeset
347 ssize_t ngx_quic_parse_ack_range(ngx_quic_header_t *pkt, u_char *start,
1cdd53532309 ACK ranges processing.
Vladimir Homutov <vl@nginx.com>
parents: 7785
diff changeset
348 u_char *end, uint64_t *gap, uint64_t *range);
1cdd53532309 ACK ranges processing.
Vladimir Homutov <vl@nginx.com>
parents: 7785
diff changeset
349
7726
f388c0ad3477 Added processing of client transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 7723
diff changeset
350 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
351 ngx_quic_tp_t *tp, ngx_log_t *log);
7713
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 7711
diff changeset
352 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
353 ngx_quic_tp_t *tp, size_t *clen);
7713
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 7711
diff changeset
354
7690
ae35ccba7aa6 Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
355 #endif /* _NGX_EVENT_QUIC_WIRE_H_INCLUDED_ */