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annotate src/http/v2/ngx_http_v2.h @ 6496:887cca40ba6a

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HTTP/2: rewritten handling of request body. There are two improvements: 1. Support for request body filters; 2. Receiving of request body is started only after the ngx_http_read_client_request_body() call. The last one fixes the problem when the client_max_body_size value might not be respected from the right location if the location was changed either during the process of receiving body or after the whole body had been received.
author Valentin Bartenev <vbart@nginx.com>
date Fri, 01 Apr 2016 15:56:03 +0300
parents 92464ebace8e
children 9d66d7ed2abb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (C) Nginx, Inc.
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3 * Copyright (C) Valentin V. Bartenev
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4 */
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5
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6
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7 #ifndef _NGX_HTTP_V2_H_INCLUDED_
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8 #define _NGX_HTTP_V2_H_INCLUDED_
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9
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10
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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13 #include <ngx_http.h>
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14
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15
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16 #define NGX_HTTP_V2_ALPN_ADVERTISE "\x02h2"
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17 #define NGX_HTTP_V2_NPN_ADVERTISE NGX_HTTP_V2_ALPN_ADVERTISE
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18
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19 #define NGX_HTTP_V2_STATE_BUFFER_SIZE 16
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20
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21 #define NGX_HTTP_V2_MAX_FRAME_SIZE ((1 << 24) - 1)
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22
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23 #define NGX_HTTP_V2_INT_OCTETS 4
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24 #define NGX_HTTP_V2_MAX_FIELD \
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25 (127 + (1 << (NGX_HTTP_V2_INT_OCTETS - 1) * 7) - 1)
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26
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27 #define NGX_HTTP_V2_FRAME_HEADER_SIZE 9
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28
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29 /* frame types */
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30 #define NGX_HTTP_V2_DATA_FRAME 0x0
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31 #define NGX_HTTP_V2_HEADERS_FRAME 0x1
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32 #define NGX_HTTP_V2_PRIORITY_FRAME 0x2
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33 #define NGX_HTTP_V2_RST_STREAM_FRAME 0x3
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34 #define NGX_HTTP_V2_SETTINGS_FRAME 0x4
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35 #define NGX_HTTP_V2_PUSH_PROMISE_FRAME 0x5
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36 #define NGX_HTTP_V2_PING_FRAME 0x6
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37 #define NGX_HTTP_V2_GOAWAY_FRAME 0x7
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38 #define NGX_HTTP_V2_WINDOW_UPDATE_FRAME 0x8
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39 #define NGX_HTTP_V2_CONTINUATION_FRAME 0x9
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40
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41 /* frame flags */
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42 #define NGX_HTTP_V2_NO_FLAG 0x00
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43 #define NGX_HTTP_V2_ACK_FLAG 0x01
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44 #define NGX_HTTP_V2_END_STREAM_FLAG 0x01
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45 #define NGX_HTTP_V2_END_HEADERS_FLAG 0x04
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46 #define NGX_HTTP_V2_PADDED_FLAG 0x08
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47 #define NGX_HTTP_V2_PRIORITY_FLAG 0x20
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48
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49
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50 typedef struct ngx_http_v2_connection_s ngx_http_v2_connection_t;
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51 typedef struct ngx_http_v2_node_s ngx_http_v2_node_t;
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52 typedef struct ngx_http_v2_out_frame_s ngx_http_v2_out_frame_t;
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53
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54
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55 typedef u_char *(*ngx_http_v2_handler_pt) (ngx_http_v2_connection_t *h2c,
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56 u_char *pos, u_char *end);
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57
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58
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59 typedef struct {
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60 ngx_str_t name;
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61 ngx_str_t value;
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62 } ngx_http_v2_header_t;
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63
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64
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65 typedef struct {
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66 ngx_uint_t sid;
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67 size_t length;
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68 size_t padding;
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69 unsigned flags:8;
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70
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71 unsigned incomplete:1;
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72 unsigned keep_pool:1;
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73
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74 /* HPACK */
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75 unsigned parse_name:1;
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76 unsigned parse_value:1;
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77 unsigned index:1;
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78 ngx_http_v2_header_t header;
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79 size_t header_limit;
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80 u_char field_state;
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81 u_char *field_start;
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82 u_char *field_end;
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83 size_t field_rest;
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84 ngx_pool_t *pool;
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85
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86 ngx_http_v2_stream_t *stream;
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87
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88 u_char buffer[NGX_HTTP_V2_STATE_BUFFER_SIZE];
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89 size_t buffer_used;
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90 ngx_http_v2_handler_pt handler;
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91 } ngx_http_v2_state_t;
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92
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93
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94
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95 typedef struct {
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96 ngx_http_v2_header_t **entries;
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97
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98 ngx_uint_t added;
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99 ngx_uint_t deleted;
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100 ngx_uint_t reused;
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101 ngx_uint_t allocated;
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102
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103 size_t size;
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104 size_t free;
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105 u_char *storage;
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106 u_char *pos;
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107 } ngx_http_v2_hpack_t;
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108
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109
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110 struct ngx_http_v2_connection_s {
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111 ngx_connection_t *connection;
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112 ngx_http_connection_t *http_connection;
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113
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114 ngx_uint_t processing;
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115
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116 size_t send_window;
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117 size_t recv_window;
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118 size_t init_window;
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119
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120 size_t frame_size;
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121
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122 ngx_queue_t waiting;
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123
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124 ngx_http_v2_state_t state;
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125
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126 ngx_http_v2_hpack_t hpack;
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127
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128 ngx_pool_t *pool;
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129
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130 ngx_http_v2_out_frame_t *free_frames;
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diff changeset
131 ngx_connection_t *free_fake_connections;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
132
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
133 ngx_http_v2_node_t **streams_index;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
134
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
135 ngx_http_v2_out_frame_t *last_out;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
136
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
137 ngx_queue_t posted;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
138 ngx_queue_t dependencies;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
139 ngx_queue_t closed;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
140
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
141 ngx_uint_t last_sid;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
142
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
143 unsigned closed_nodes:8;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
144 unsigned blocked:1;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
145 };
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
146
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
147
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
148 struct ngx_http_v2_node_s {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
149 ngx_uint_t id;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
150 ngx_http_v2_node_t *index;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
151 ngx_http_v2_node_t *parent;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
152 ngx_queue_t queue;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
153 ngx_queue_t children;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
154 ngx_queue_t reuse;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
155 ngx_uint_t rank;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
156 ngx_uint_t weight;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
157 double rel_weight;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
158 ngx_http_v2_stream_t *stream;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
159 };
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
160
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
161
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
162 struct ngx_http_v2_stream_s {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
163 ngx_http_request_t *request;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
164 ngx_http_v2_connection_t *connection;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
165 ngx_http_v2_node_t *node;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
166
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
167 ngx_uint_t queued;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
168
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
169 /*
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
170 * A change to SETTINGS_INITIAL_WINDOW_SIZE could cause the
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
171 * send_window to become negative, hence it's signed.
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
172 */
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
173 ssize_t send_window;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
174 size_t recv_window;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
175
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
176 ngx_http_v2_out_frame_t *free_frames;
6293
ec6b07be88a5 HTTP/2: reused HEADERS and CONTINUATION frames buffers.
Valentin Bartenev <vbart@nginx.com>
parents: 6285
diff changeset
177 ngx_chain_t *free_frame_headers;
6246
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
178 ngx_chain_t *free_bufs;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
179
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
180 ngx_queue_t queue;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
181
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
182 ngx_array_t *cookies;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
183
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
184 size_t header_limit;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
185
6411
8ec349bb60b2 HTTP/2: always use temporary pool for processing headers.
Valentin Bartenev <vbart@nginx.com>
parents: 6395
diff changeset
186 ngx_pool_t *pool;
8ec349bb60b2 HTTP/2: always use temporary pool for processing headers.
Valentin Bartenev <vbart@nginx.com>
parents: 6395
diff changeset
187
6246
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
188 unsigned handled:1;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
189 unsigned blocked:1;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
190 unsigned exhausted:1;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
191 unsigned in_closed:1;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
192 unsigned out_closed:1;
6495
92464ebace8e HTTP/2: sending RST_STREAM with NO_ERROR to discard request body.
Valentin Bartenev <vbart@nginx.com>
parents: 6411
diff changeset
193 unsigned rst_sent:1;
6496
887cca40ba6a HTTP/2: rewritten handling of request body.
Valentin Bartenev <vbart@nginx.com>
parents: 6495
diff changeset
194 unsigned no_flow_control:1;
887cca40ba6a HTTP/2: rewritten handling of request body.
Valentin Bartenev <vbart@nginx.com>
parents: 6495
diff changeset
195 unsigned skip_data:1;
6246
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
196 };
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
197
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
198
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
199 struct ngx_http_v2_out_frame_s {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
200 ngx_http_v2_out_frame_t *next;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
201 ngx_chain_t *first;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
202 ngx_chain_t *last;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
203 ngx_int_t (*handler)(ngx_http_v2_connection_t *h2c,
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
204 ngx_http_v2_out_frame_t *frame);
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
205
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
206 ngx_http_v2_stream_t *stream;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
207 size_t length;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
208
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
209 unsigned blocked:1;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
210 unsigned fin:1;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
211 };
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
212
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
213
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
214 static ngx_inline void
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
215 ngx_http_v2_queue_frame(ngx_http_v2_connection_t *h2c,
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
216 ngx_http_v2_out_frame_t *frame)
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
217 {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
218 ngx_http_v2_out_frame_t **out;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
219
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
220 for (out = &h2c->last_out; *out; out = &(*out)->next) {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
221
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
222 if ((*out)->blocked || (*out)->stream == NULL) {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
223 break;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
224 }
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
225
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
226 if ((*out)->stream->node->rank < frame->stream->node->rank
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
227 || ((*out)->stream->node->rank == frame->stream->node->rank
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
228 && (*out)->stream->node->rel_weight
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
229 >= frame->stream->node->rel_weight))
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
230 {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
231 break;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
232 }
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
233 }
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
234
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
235 frame->next = *out;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
236 *out = frame;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
237 }
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
238
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
239
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
240 static ngx_inline void
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
241 ngx_http_v2_queue_blocked_frame(ngx_http_v2_connection_t *h2c,
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
242 ngx_http_v2_out_frame_t *frame)
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
243 {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
244 ngx_http_v2_out_frame_t **out;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
245
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
246 for (out = &h2c->last_out; *out; out = &(*out)->next)
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
247 {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
248 if ((*out)->blocked || (*out)->stream == NULL) {
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
249 break;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
250 }
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
251 }
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
252
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
253 frame->next = *out;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
254 *out = frame;
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
255 }
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
256
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
257
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
258 void ngx_http_v2_init(ngx_event_t *rev);
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
259 void ngx_http_v2_request_headers_init(void);
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
260
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
261 ngx_int_t ngx_http_v2_read_request_body(ngx_http_request_t *r,
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
262 ngx_http_client_body_handler_pt post_handler);
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
263
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
264 void ngx_http_v2_close_stream(ngx_http_v2_stream_t *stream, ngx_int_t rc);
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
265
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
266 ngx_int_t ngx_http_v2_send_output_queue(ngx_http_v2_connection_t *h2c);
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
Valentin Bartenev <vbart@nginx.com>
parents:
diff changeset
267
257b51c37c5a The HTTP/2 implementation (RFC 7240, 7241).
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268
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269 ngx_int_t ngx_http_v2_get_indexed_header(ngx_http_v2_connection_t *h2c,
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270 ngx_uint_t index, ngx_uint_t name_only);
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271 ngx_int_t ngx_http_v2_add_header(ngx_http_v2_connection_t *h2c,
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272 ngx_http_v2_header_t *header);
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273 ngx_int_t ngx_http_v2_table_size(ngx_http_v2_connection_t *h2c, size_t size);
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274
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275
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276 ngx_int_t ngx_http_v2_huff_decode(u_char *state, u_char *src, size_t len,
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277 u_char **dst, ngx_uint_t last, ngx_log_t *log);
6395
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278 size_t ngx_http_v2_huff_encode(u_char *src, size_t len, u_char *dst,
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279 ngx_uint_t lower);
6246
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280
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281
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282 #define ngx_http_v2_prefix(bits) ((1 << (bits)) - 1)
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283
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284
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285 #if (NGX_HAVE_NONALIGNED)
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286
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287 #define ngx_http_v2_parse_uint16(p) ntohs(*(uint16_t *) (p))
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288 #define ngx_http_v2_parse_uint32(p) ntohl(*(uint32_t *) (p))
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289
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290 #else
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291
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292 #define ngx_http_v2_parse_uint16(p) ((p)[0] << 8 | (p)[1])
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293 #define ngx_http_v2_parse_uint32(p) \
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294 ((p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3])
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295
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296 #endif
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297
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298 #define ngx_http_v2_parse_length(p) ((p) >> 8)
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299 #define ngx_http_v2_parse_type(p) ((p) & 0xff)
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300 #define ngx_http_v2_parse_sid(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff)
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301 #define ngx_http_v2_parse_window(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff)
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302
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303
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304 #define ngx_http_v2_write_uint16_aligned(p, s) \
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305 (*(uint16_t *) (p) = htons((uint16_t) (s)), (p) + sizeof(uint16_t))
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306 #define ngx_http_v2_write_uint32_aligned(p, s) \
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307 (*(uint32_t *) (p) = htonl((uint32_t) (s)), (p) + sizeof(uint32_t))
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308
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309 #if (NGX_HAVE_NONALIGNED)
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310
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311 #define ngx_http_v2_write_uint16 ngx_http_v2_write_uint16_aligned
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312 #define ngx_http_v2_write_uint32 ngx_http_v2_write_uint32_aligned
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313
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314 #else
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315
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316 #define ngx_http_v2_write_uint16(p, s) \
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317 ((p)[0] = (u_char) ((s) >> 8), \
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318 (p)[1] = (u_char) (s), \
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319 (p) + sizeof(uint16_t))
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320
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321 #define ngx_http_v2_write_uint32(p, s) \
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322 ((p)[0] = (u_char) ((s) >> 24), \
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323 (p)[1] = (u_char) ((s) >> 16), \
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324 (p)[2] = (u_char) ((s) >> 8), \
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325 (p)[3] = (u_char) (s), \
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326 (p) + sizeof(uint32_t))
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327
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328 #endif
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329
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330 #define ngx_http_v2_write_len_and_type(p, l, t) \
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331 ngx_http_v2_write_uint32_aligned(p, (l) << 8 | (t))
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332
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333 #define ngx_http_v2_write_sid ngx_http_v2_write_uint32
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334
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335 #endif /* _NGX_HTTP_V2_H_INCLUDED_ */