Mercurial > hg > nginx-quic
annotate src/event/ngx_event_quic_transport.h @ 7726:f388c0ad3477 quic
Added processing of client transport parameters.
note:
+ parameters are available in SSL connection since they are obtained by ssl
stack
quote:
During connection establishment, both endpoints make authenticated
declarations of their transport parameters. These declarations are
made unilaterally by each endpoint.
and really, we send our parameters before we read client's.
no handling of incoming parameters is made by this patch.
author | Vladimir Homutov <vl@nginx.com> |
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date | Sat, 21 Mar 2020 20:51:59 +0300 |
parents | 085fd6e68367 |
children | f85749b60e58 |
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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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6 |
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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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9 |
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10 |
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11 #include <ngx_event_openssl.h> |
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12 |
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13 |
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14 #define ngx_quic_long_pkt(flags) ((flags) & 0x80) /* 17.2 */ |
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15 #define ngx_quic_short_pkt(flags) (((flags) & 0x80) == 0) /* 17.3 */ |
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16 |
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17 /* Long packet types */ |
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18 #define NGX_QUIC_PKT_INITIAL 0xC0 /* 17.2.2 */ |
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19 #define NGX_QUIC_PKT_ZRTT 0xD0 /* 17.2.3 */ |
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20 #define NGX_QUIC_PKT_HANDSHAKE 0xE0 /* 17.2.4 */ |
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21 #define NGX_QUIC_PKT_RETRY 0xF0 /* 17.2.5 */ |
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22 |
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23 #define ngx_quic_pkt_in(flags) (((flags) & 0xF0) == NGX_QUIC_PKT_INITIAL) |
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24 #define ngx_quic_pkt_zrtt(flags) (((flags) & 0xF0) == NGX_QUIC_PKT_ZRTT) |
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25 #define ngx_quic_pkt_hs(flags) (((flags) & 0xF0) == NGX_QUIC_PKT_HANDSHAKE) |
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26 #define ngx_quic_pkt_retry(flags) (((flags) & 0xF0) == NGX_QUIC_PKT_RETRY) |
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27 |
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28 /* 12.4. Frames and Frame Types */ |
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29 #define NGX_QUIC_FT_PADDING 0x00 |
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30 #define NGX_QUIC_FT_PING 0x01 |
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31 #define NGX_QUIC_FT_ACK 0x02 |
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32 #define NGX_QUIC_FT_ACK_ECN 0x03 |
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33 #define NGX_QUIC_FT_RESET_STREAM 0x04 |
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34 #define NGX_QUIC_FT_STOP_SENDING 0x05 |
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35 #define NGX_QUIC_FT_CRYPTO 0x06 |
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36 #define NGX_QUIC_FT_NEW_TOKEN 0x07 |
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37 #define NGX_QUIC_FT_STREAM0 0x08 |
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38 #define NGX_QUIC_FT_STREAM1 0x09 |
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39 #define NGX_QUIC_FT_STREAM2 0x0A |
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40 #define NGX_QUIC_FT_STREAM3 0x0B |
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41 #define NGX_QUIC_FT_STREAM4 0x0C |
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42 #define NGX_QUIC_FT_STREAM5 0x0D |
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43 #define NGX_QUIC_FT_STREAM6 0x0E |
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44 #define NGX_QUIC_FT_STREAM7 0x0F |
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45 #define NGX_QUIC_FT_MAX_DATA 0x10 |
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46 #define NGX_QUIC_FT_MAX_STREAM_DATA 0x11 |
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47 #define NGX_QUIC_FT_MAX_STREAMS 0x12 |
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48 #define NGX_QUIC_FT_MAX_STREAMS2 0x13 |
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49 #define NGX_QUIC_FT_DATA_BLOCKED 0x14 |
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50 #define NGX_QUIC_FT_STREAM_DATA_BLOCKED 0x15 |
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51 #define NGX_QUIC_FT_STREAMS_BLOCKED 0x16 |
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52 #define NGX_QUIC_FT_STREAMS_BLOCKED2 0x17 |
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53 #define NGX_QUIC_FT_NEW_CONNECTION_ID 0x18 |
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54 #define NGX_QUIC_FT_RETIRE_CONNECTION_ID 0x19 |
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55 #define NGX_QUIC_FT_PATH_CHALLENGE 0x1A |
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56 #define NGX_QUIC_FT_PATH_RESPONSE 0x1B |
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57 #define NGX_QUIC_FT_CONNECTION_CLOSE 0x1C |
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58 #define NGX_QUIC_FT_CONNECTION_CLOSE2 0x1D |
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59 #define NGX_QUIC_FT_HANDSHAKE_DONE 0x1E |
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60 |
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61 /* 22.4. QUIC Transport Error Codes Registry */ |
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62 #define NGX_QUIC_ERR_NO_ERROR 0x00 |
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63 #define NGX_QUIC_ERR_INTERNAL_ERROR 0x01 |
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64 #define NGX_QUIC_ERR_SERVER_BUSY 0x02 |
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65 #define NGX_QUIC_ERR_FLOW_CONTROL_ERROR 0x03 |
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66 #define NGX_QUIC_ERR_STREAM_LIMIT_ERROR 0x04 |
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67 #define NGX_QUIC_ERR_STREAM_STATE_ERROR 0x05 |
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68 #define NGX_QUIC_ERR_FINAL_SIZE_ERROR 0x06 |
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69 #define NGX_QUIC_ERR_FRAME_ENCODING_ERROR 0x07 |
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70 #define NGX_QUIC_ERR_TRANSPORT_PARAMETER_ERROR 0x08 |
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71 #define NGX_QUIC_ERR_CONNECTION_ID_LIMIT_ERROR 0x09 |
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72 #define NGX_QUIC_ERR_PROTOCOL_VIOLATION 0x0A |
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73 #define NGX_QUIC_ERR_INVALID_TOKEN 0x0B |
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74 /* 0xC is not defined */ |
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75 #define NGX_QUIC_ERR_CRYPTO_BUFFER_EXCEEDED 0x0D |
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76 /* 0xE is not defined */ |
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77 #define NGX_QUIC_ERR_CRYPTO_ERROR 0x10 |
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78 |
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79 #define NGX_QUIC_ERR_LAST NGX_QUIC_ERR_CRYPTO_ERROR |
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80 |
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81 /* Transport parameters */ |
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82 #define NGX_QUIC_TP_ORIGINAL_CONNECTION_ID 0x00 |
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83 #define NGX_QUIC_TP_MAX_IDLE_TIMEOUT 0x01 |
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84 #define NGX_QUIC_TP_STATELESS_RESET_TOKEN 0x02 |
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85 #define NGX_QUIC_TP_MAX_PACKET_SIZE 0x03 |
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86 #define NGX_QUIC_TP_INITIAL_MAX_DATA 0x04 |
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87 #define NGX_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_LOCAL 0x05 |
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88 #define NGX_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_REMOTE 0x06 |
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89 #define NGX_QUIC_TP_INITIAL_MAX_STREAM_DATA_UNI 0x07 |
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90 #define NGX_QUIC_TP_INITIAL_MAX_STREAMS_BIDI 0x08 |
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91 #define NGX_QUIC_TP_INITIAL_MAX_STREAMS_UNI 0x09 |
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92 #define NGX_QUIC_TP_ACK_DELAY_EXPONENT 0x0A |
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93 #define NGX_QUIC_TP_MAX_ACK_DELAY 0x0B |
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94 #define NGX_QUIC_TP_DISABLE_ACTIVE_MIGRATION 0x0C |
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95 #define NGX_QUIC_TP_PREFERRED_ADDRESS 0x0D |
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96 #define NGX_QUIC_TP_ACTIVE_CONNECTION_ID_LIMIT 0x0E |
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97 |
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98 |
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99 typedef struct { |
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100 ngx_uint_t pn; |
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101 uint64_t largest; |
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102 uint64_t delay; |
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103 uint64_t range_count; |
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104 uint64_t first_range; |
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105 uint64_t ranges[20]; |
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106 /* TODO: ecn counts */ |
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107 } ngx_quic_ack_frame_t; |
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108 |
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109 |
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110 typedef struct { |
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111 uint64_t offset; |
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112 uint64_t len; |
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113 u_char *data; |
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114 } ngx_quic_crypto_frame_t; |
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115 |
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116 |
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117 typedef struct { |
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118 uint64_t seqnum; |
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119 uint64_t retire; |
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120 uint8_t len; |
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121 u_char cid[20]; |
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122 u_char srt[16]; |
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123 } ngx_quic_new_conn_id_frame_t; |
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124 |
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125 |
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126 typedef struct { |
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127 uint8_t type; |
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128 uint64_t stream_id; |
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129 uint64_t offset; |
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130 uint64_t length; |
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131 unsigned off:1; |
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132 unsigned len:1; |
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133 unsigned fin:1; |
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diff
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134 u_char *data; |
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diff
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|
135 } ngx_quic_stream_frame_t; |
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diff
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136 |
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|
137 |
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diff
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|
138 typedef struct { |
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MAX_DATA frame parser/handler.
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7702
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139 uint64_t max_data; |
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140 } ngx_quic_max_data_frame_t; |
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MAX_DATA frame parser/handler.
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141 |
ff540f13d95d
MAX_DATA frame parser/handler.
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142 |
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MAX_DATA frame parser/handler.
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143 typedef struct { |
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144 uint64_t error_code; |
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145 uint64_t frame_type; |
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diff
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|
146 ngx_str_t reason; |
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147 } ngx_quic_close_frame_t; |
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148 |
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149 |
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150 typedef struct { |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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151 uint64_t id; |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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152 uint64_t error_code; |
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153 uint64_t final_size; |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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154 } ngx_quic_reset_stream_frame_t; |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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155 |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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156 |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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|
157 typedef struct { |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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158 uint64_t id; |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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159 uint64_t error_code; |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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160 } ngx_quic_stop_sending_frame_t; |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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161 |
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Added parsing of RESET_STREAM and STOP_SENDING frames
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162 |
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163 typedef struct { |
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164 uint64_t limit; |
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165 ngx_uint_t bidi; /* unsigned: bidi:1 */ |
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166 } ngx_quic_streams_blocked_frame_t; |
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167 |
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168 |
7711
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Double MAX_STREAMS on STREAMS_BLOCKED.
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169 typedef struct { |
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Double MAX_STREAMS on STREAMS_BLOCKED.
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170 uint64_t limit; |
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Double MAX_STREAMS on STREAMS_BLOCKED.
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|
171 ngx_uint_t bidi; /* unsigned: bidi:1 */ |
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172 } ngx_quic_max_streams_frame_t; |
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173 |
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174 |
7723
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175 typedef struct { |
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176 uint64_t id; |
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|
177 uint64_t limit; |
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178 } ngx_quic_max_stream_data_frame_t; |
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179 |
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180 |
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181 typedef struct { |
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182 uint64_t limit; |
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|
183 } ngx_quic_data_blocked_frame_t; |
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184 |
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185 |
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186 typedef struct { |
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187 uint64_t id; |
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|
188 uint64_t limit; |
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|
189 } ngx_quic_stream_data_blocked_frame_t; |
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190 |
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|
191 |
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|
192 typedef struct { |
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|
193 uint64_t sequence_number; |
085fd6e68367
Implemented parsing of remaining frame types.
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7717
diff
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|
194 } ngx_quic_retire_cid_frame_t; |
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Implemented parsing of remaining frame types.
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195 |
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196 |
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|
197 typedef struct { |
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|
198 u_char data[8]; |
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Implemented parsing of remaining frame types.
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diff
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|
199 } ngx_quic_path_challenge_frame_t; |
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|
200 |
085fd6e68367
Implemented parsing of remaining frame types.
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201 |
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|
202 typedef struct ngx_quic_frame_s ngx_quic_frame_t; |
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|
203 |
ae35ccba7aa6
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diff
changeset
|
204 struct ngx_quic_frame_s { |
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parents:
diff
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|
205 ngx_uint_t type; |
ae35ccba7aa6
Extracted transport part of the code into separate file.
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parents:
diff
changeset
|
206 enum ssl_encryption_level_t level; |
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changeset
|
207 ngx_quic_frame_t *next; |
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parents:
diff
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|
208 union { |
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parents:
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209 ngx_quic_ack_frame_t ack; |
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|
210 ngx_quic_crypto_frame_t crypto; |
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diff
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211 ngx_quic_new_conn_id_frame_t ncid; |
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diff
changeset
|
212 ngx_quic_stream_frame_t stream; |
7703
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MAX_DATA frame parser/handler.
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parents:
7702
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213 ngx_quic_max_data_frame_t max_data; |
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parents:
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|
214 ngx_quic_close_frame_t close; |
7697
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7690
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|
215 ngx_quic_reset_stream_frame_t reset_stream; |
78540e2160d0
Added parsing of RESET_STREAM and STOP_SENDING frames
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diff
changeset
|
216 ngx_quic_stop_sending_frame_t stop_sending; |
7702
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Added parsing of STREAMS BLOCKED frames.
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|
217 ngx_quic_streams_blocked_frame_t streams_blocked; |
7711
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Double MAX_STREAMS on STREAMS_BLOCKED.
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parents:
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|
218 ngx_quic_max_streams_frame_t max_streams; |
7723
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219 ngx_quic_max_stream_data_frame_t max_stream_data; |
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Implemented parsing of remaining frame types.
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|
220 ngx_quic_data_blocked_frame_t data_blocked; |
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Implemented parsing of remaining frame types.
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221 ngx_quic_stream_data_blocked_frame_t stream_data_blocked; |
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Implemented parsing of remaining frame types.
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222 ngx_quic_retire_cid_frame_t retire_cid; |
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Implemented parsing of remaining frame types.
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|
223 ngx_quic_path_challenge_frame_t path_challenge; |
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Implemented parsing of remaining frame types.
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|
224 ngx_quic_path_challenge_frame_t path_response; |
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parents:
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225 } u; |
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226 u_char info[128]; // for debug |
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227 }; |
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228 |
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229 |
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230 typedef struct { |
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231 ngx_log_t *log; |
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232 |
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233 struct ngx_quic_secret_s *secret; |
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diff
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234 ngx_uint_t type; |
7706
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Added boundaries checks into frame parser.
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changeset
|
235 ngx_uint_t *number; |
1f002206a59b
Added boundaries checks into frame parser.
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7703
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|
236 uint8_t flags; |
7690
ae35ccba7aa6
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237 uint32_t version; |
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238 ngx_str_t token; |
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239 enum ssl_encryption_level_t level; |
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240 |
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241 /* filled in by parser */ |
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242 ngx_buf_t *raw; /* udp datagram */ |
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243 |
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244 u_char *data; /* quic packet */ |
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245 size_t len; |
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246 |
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247 /* cleartext fields */ |
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248 ngx_str_t dcid; |
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249 ngx_str_t scid; |
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250 uint64_t pn; |
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251 ngx_str_t payload; /* decrypted */ |
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252 } ngx_quic_header_t; |
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253 |
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254 |
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255 u_char *ngx_quic_error_text(uint64_t error_code); |
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256 |
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257 ngx_int_t ngx_quic_parse_long_header(ngx_quic_header_t *pkt); |
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258 size_t ngx_quic_create_long_header(ngx_quic_header_t *pkt, ngx_str_t *out, |
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259 size_t pkt_len, u_char **pnp); |
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260 |
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261 ngx_int_t ngx_quic_parse_short_header(ngx_quic_header_t *pkt, |
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262 ngx_str_t *dcid); |
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263 ngx_int_t ngx_quic_parse_initial_header(ngx_quic_header_t *pkt); |
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264 ngx_int_t ngx_quic_parse_handshake_header(ngx_quic_header_t *pkt); |
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265 |
7706
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Added boundaries checks into frame parser.
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266 ssize_t ngx_quic_parse_frame(ngx_quic_header_t *pkt, u_char *start, u_char *end, |
7690
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267 ngx_quic_frame_t *frame); |
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268 ssize_t ngx_quic_create_frame(u_char *p, u_char *end, ngx_quic_frame_t *f); |
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269 |
7726
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Added processing of client transport parameters.
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270 ngx_int_t ngx_quic_parse_transport_params(u_char *p, u_char *end, |
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271 ngx_quic_tp_t *tp, ngx_log_t *log); |
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272 ssize_t ngx_quic_create_transport_params(u_char *p, u_char *end, |
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273 ngx_quic_tp_t *tp); |
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274 |
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275 #endif /* _NGX_EVENT_QUIC_WIRE_H_INCLUDED_ */ |