Mercurial > hg > nginx-quic
annotate src/http/v3/ngx_http_v3.h @ 8692:0d3bf08eaac0 quic
HTTP/3: allowed QUIC stream connection reuse.
A QUIC stream connection is treated as reusable until first bytes of request
arrive, which is also when the request object is now allocated. A connection
closed as a result of draining, is reset with the error code
H3_REQUEST_REJECTED. Such behavior is allowed by quic-http-34:
Once a request stream has been opened, the request MAY be cancelled
by either endpoint. Clients cancel requests if the response is no
longer of interest; servers cancel requests if they are unable to or
choose not to respond.
When the server cancels a request without performing any application
processing, the request is considered "rejected." The server SHOULD
abort its response stream with the error code H3_REQUEST_REJECTED.
The client can treat requests rejected by the server as though they had
never been sent at all, thereby allowing them to be retried later.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Mon, 18 Oct 2021 15:47:06 +0300 |
parents | 72b304f6207c |
children | 606bf52888d2 |
rev | line source |
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7681 | 1 |
2 /* | |
3 * Copyright (C) Roman Arutyunyan | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #ifndef _NGX_HTTP_V3_H_INCLUDED_ | |
9 #define _NGX_HTTP_V3_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 #include <ngx_http.h> | |
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16 #include <ngx_http_v3_parse.h> |
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17 #include <ngx_http_v3_encode.h> |
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18 #include <ngx_http_v3_streams.h> |
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19 #include <ngx_http_v3_tables.h> |
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21 | |
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22 #define NGX_HTTP_V3_ALPN_ADVERTISE "\x02h3" |
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23 #define NGX_HTTP_V3_ALPN_DRAFT_FMT "\x05h3-%02uD" |
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25 #define NGX_HTTP_V3_VARLEN_INT_LEN 4 |
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26 #define NGX_HTTP_V3_PREFIX_INT_LEN 11 |
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27 |
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28 #define NGX_HTTP_V3_STREAM_CONTROL 0x00 |
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29 #define NGX_HTTP_V3_STREAM_PUSH 0x01 |
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30 #define NGX_HTTP_V3_STREAM_ENCODER 0x02 |
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31 #define NGX_HTTP_V3_STREAM_DECODER 0x03 |
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32 |
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33 #define NGX_HTTP_V3_FRAME_DATA 0x00 |
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34 #define NGX_HTTP_V3_FRAME_HEADERS 0x01 |
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35 #define NGX_HTTP_V3_FRAME_CANCEL_PUSH 0x03 |
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36 #define NGX_HTTP_V3_FRAME_SETTINGS 0x04 |
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37 #define NGX_HTTP_V3_FRAME_PUSH_PROMISE 0x05 |
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38 #define NGX_HTTP_V3_FRAME_GOAWAY 0x07 |
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39 #define NGX_HTTP_V3_FRAME_MAX_PUSH_ID 0x0d |
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40 |
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41 #define NGX_HTTP_V3_PARAM_MAX_TABLE_CAPACITY 0x01 |
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42 #define NGX_HTTP_V3_PARAM_MAX_HEADER_LIST_SIZE 0x06 |
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43 #define NGX_HTTP_V3_PARAM_BLOCKED_STREAMS 0x07 |
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45 #define NGX_HTTP_V3_STREAM_CLIENT_CONTROL 0 |
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46 #define NGX_HTTP_V3_STREAM_SERVER_CONTROL 1 |
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47 #define NGX_HTTP_V3_STREAM_CLIENT_ENCODER 2 |
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48 #define NGX_HTTP_V3_STREAM_SERVER_ENCODER 3 |
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49 #define NGX_HTTP_V3_STREAM_CLIENT_DECODER 4 |
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50 #define NGX_HTTP_V3_STREAM_SERVER_DECODER 5 |
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51 #define NGX_HTTP_V3_MAX_KNOWN_STREAM 6 |
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52 |
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53 /* HTTP/3 errors */ |
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54 #define NGX_HTTP_V3_ERR_NO_ERROR 0x100 |
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55 #define NGX_HTTP_V3_ERR_GENERAL_PROTOCOL_ERROR 0x101 |
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56 #define NGX_HTTP_V3_ERR_INTERNAL_ERROR 0x102 |
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57 #define NGX_HTTP_V3_ERR_STREAM_CREATION_ERROR 0x103 |
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58 #define NGX_HTTP_V3_ERR_CLOSED_CRITICAL_STREAM 0x104 |
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59 #define NGX_HTTP_V3_ERR_FRAME_UNEXPECTED 0x105 |
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60 #define NGX_HTTP_V3_ERR_FRAME_ERROR 0x106 |
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61 #define NGX_HTTP_V3_ERR_EXCESSIVE_LOAD 0x107 |
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62 #define NGX_HTTP_V3_ERR_ID_ERROR 0x108 |
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63 #define NGX_HTTP_V3_ERR_SETTINGS_ERROR 0x109 |
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64 #define NGX_HTTP_V3_ERR_MISSING_SETTINGS 0x10a |
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65 #define NGX_HTTP_V3_ERR_REQUEST_REJECTED 0x10b |
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66 #define NGX_HTTP_V3_ERR_REQUEST_CANCELLED 0x10c |
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67 #define NGX_HTTP_V3_ERR_REQUEST_INCOMPLETE 0x10d |
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68 #define NGX_HTTP_V3_ERR_CONNECT_ERROR 0x10f |
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69 #define NGX_HTTP_V3_ERR_VERSION_FALLBACK 0x110 |
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70 |
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71 /* QPACK errors */ |
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72 #define NGX_HTTP_V3_ERR_DECOMPRESSION_FAILED 0x200 |
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73 #define NGX_HTTP_V3_ERR_ENCODER_STREAM_ERROR 0x201 |
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74 #define NGX_HTTP_V3_ERR_DECODER_STREAM_ERROR 0x202 |
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75 |
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77 #define ngx_http_v3_get_session(c) ngx_http_quic_get_connection(c)->v3_session |
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78 |
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79 #define ngx_http_v3_get_module_loc_conf(c, module) \ |
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80 ngx_http_get_module_loc_conf(ngx_http_quic_get_connection(c)->conf_ctx, \ |
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81 module) |
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82 |
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83 #define ngx_http_v3_get_module_srv_conf(c, module) \ |
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84 ngx_http_get_module_srv_conf(ngx_http_quic_get_connection(c)->conf_ctx, \ |
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85 module) |
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86 |
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87 #define ngx_http_v3_finalize_connection(c, code, reason) \ |
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88 ngx_quic_finalize_connection(c->quic->parent, code, reason) |
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89 |
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90 #define ngx_http_v3_shutdown_connection(c, code, reason) \ |
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91 ngx_quic_shutdown_connection(c->quic->parent, code, reason) |
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92 |
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93 #define ngx_http_v3_connection(c) \ |
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94 ((c)->quic ? ngx_http_quic_get_connection(c)->addr_conf->http3 : 0) |
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95 |
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96 |
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98 size_t max_table_capacity; |
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99 ngx_uint_t max_blocked_streams; |
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101 ngx_uint_t max_uni_streams; |
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102 } ngx_http_v3_srv_conf_t; |
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103 |
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104 |
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105 typedef struct { |
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107 ngx_flag_t push; | |
108 ngx_array_t *pushes; | |
109 } ngx_http_v3_loc_conf_t; | |
110 | |
111 | |
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112 struct ngx_http_v3_parse_s { |
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113 size_t header_limit; |
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114 ngx_http_v3_parse_headers_t headers; |
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115 ngx_http_v3_parse_data_t body; |
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116 }; |
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117 |
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118 |
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119 struct ngx_http_v3_session_s { |
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120 ngx_http_v3_dynamic_table_t table; |
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122 ngx_event_t keepalive; |
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123 ngx_uint_t nrequests; |
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124 |
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125 ngx_queue_t blocked; |
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126 ngx_uint_t nblocked; |
8015 | 127 |
128 ngx_queue_t pushing; | |
129 ngx_uint_t npushing; | |
130 uint64_t next_push_id; | |
131 uint64_t max_push_id; | |
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132 uint64_t goaway_push_id; |
8015 | 133 |
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134 off_t total_bytes; |
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135 off_t payload_bytes; |
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136 |
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137 ngx_uint_t goaway; /* unsigned goaway:1; */ |
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138 |
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139 ngx_connection_t *known_streams[NGX_HTTP_V3_MAX_KNOWN_STREAM]; |
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140 }; |
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141 |
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142 |
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HTTP/3: refactored request parser.
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143 void ngx_http_v3_init(ngx_connection_t *c); |
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144 void ngx_http_v3_reset_connection(ngx_connection_t *c); |
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145 ngx_int_t ngx_http_v3_init_session(ngx_connection_t *c); |
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146 ngx_int_t ngx_http_v3_check_flood(ngx_connection_t *c); |
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147 |
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148 ngx_int_t ngx_http_v3_read_request_body(ngx_http_request_t *r); |
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149 ngx_int_t ngx_http_v3_read_unbuffered_request_body(ngx_http_request_t *r); |
7681 | 150 |
151 | |
152 extern ngx_module_t ngx_http_v3_module; | |
153 | |
154 | |
155 #endif /* _NGX_HTTP_V3_H_INCLUDED_ */ |