Mercurial > hg > nginx-quic
annotate src/event/ngx_event_quic.c @ 7706:1f002206a59b quic
Added boundaries checks into frame parser.
The ngx_quic_parse_frame() functions now has new 'pkt' argument: the packet
header of a currently processed frame. This allows to log errors/debug
closer to reasons and perform additional checks regarding possible frame
types. The handler only performs processing of good frames.
A number of functions like read_uint32(), parse_int[_multi] probably should
be implemented as a macro, but currently it is better to have them as
functions for simpler debugging.
author | Vladimir Homutov <vl@nginx.com> |
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date | Thu, 19 Mar 2020 17:07:12 +0300 |
parents | 5ad7bffd3850 |
children | db745339e54b |
rev | line source |
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Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
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1 |
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2 /* |
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Moved all QUIC code into ngx_event_quic.c
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3 * Copyright (C) Nginx, Inc. |
b28ea685a56e
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4 */ |
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parents:
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5 |
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6 |
7637 | 7 #include <ngx_config.h> |
8 #include <ngx_core.h> | |
7674
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HTTP/QUIC interface reworked.
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9 #include <ngx_event.h> |
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10 |
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11 |
7691 | 12 typedef struct { |
13 ngx_rbtree_node_t node; | |
14 ngx_buf_t *b; | |
15 ngx_connection_t *c; | |
16 ngx_quic_stream_t s; | |
17 } ngx_quic_stream_node_t; | |
18 | |
19 | |
20 typedef struct { | |
21 ngx_rbtree_t tree; | |
22 ngx_rbtree_node_t sentinel; | |
23 ngx_msec_t timeout; | |
24 ngx_connection_handler_pt handler; | |
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25 |
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26 ngx_uint_t id_counter; |
7691 | 27 } ngx_quic_streams_t; |
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28 |
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29 |
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30 struct ngx_quic_connection_s { |
7691 | 31 ngx_str_t scid; |
32 ngx_str_t dcid; | |
33 ngx_str_t token; | |
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34 |
7691 | 35 /* current packet numbers for each namespace */ |
36 ngx_uint_t initial_pn; | |
37 ngx_uint_t handshake_pn; | |
38 ngx_uint_t appdata_pn; | |
7650
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Split frame and packet generation into separate steps.
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39 |
7691 | 40 ngx_quic_secrets_t secrets; |
41 ngx_ssl_t *ssl; | |
42 ngx_quic_frame_t *frames; | |
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43 |
7691 | 44 ngx_quic_streams_t streams; |
7703
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MAX_DATA frame parser/handler.
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45 ngx_uint_t max_data; |
7691 | 46 }; |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
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47 |
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48 |
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49 #if BORINGSSL_API_VERSION >= 10 |
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50 static int ngx_quic_set_read_secret(ngx_ssl_conn_t *ssl_conn, |
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51 enum ssl_encryption_level_t level, const SSL_CIPHER *cipher, |
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52 const uint8_t *secret, size_t secret_len); |
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53 static int ngx_quic_set_write_secret(ngx_ssl_conn_t *ssl_conn, |
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54 enum ssl_encryption_level_t level, const SSL_CIPHER *cipher, |
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55 const uint8_t *secret, size_t secret_len); |
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56 #else |
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57 static int ngx_quic_set_encryption_secrets(ngx_ssl_conn_t *ssl_conn, |
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58 enum ssl_encryption_level_t level, const uint8_t *read_secret, |
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59 const uint8_t *write_secret, size_t secret_len); |
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60 #endif |
7691 | 61 |
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62 static int ngx_quic_add_handshake_data(ngx_ssl_conn_t *ssl_conn, |
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63 enum ssl_encryption_level_t level, const uint8_t *data, size_t len); |
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64 static int ngx_quic_flush_flight(ngx_ssl_conn_t *ssl_conn); |
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65 static int ngx_quic_send_alert(ngx_ssl_conn_t *ssl_conn, |
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66 enum ssl_encryption_level_t level, uint8_t alert); |
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67 |
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68 |
7691 | 69 static ngx_int_t ngx_quic_new_connection(ngx_connection_t *c, ngx_ssl_t *ssl, |
70 ngx_quic_header_t *pkt); | |
71 static ngx_int_t ngx_quic_init_connection(ngx_connection_t *c); | |
72 static void ngx_quic_handshake_handler(ngx_event_t *rev); | |
73 static void ngx_quic_close_connection(ngx_connection_t *c); | |
74 | |
75 static ngx_int_t ngx_quic_input(ngx_connection_t *c, ngx_buf_t *b); | |
76 static ngx_int_t ngx_quic_initial_input(ngx_connection_t *c, | |
77 ngx_quic_header_t *pkt); | |
78 static ngx_int_t ngx_quic_handshake_input(ngx_connection_t *c, | |
79 ngx_quic_header_t *pkt); | |
80 static ngx_int_t ngx_quic_app_input(ngx_connection_t *c, | |
81 ngx_quic_header_t *pkt); | |
82 static ngx_int_t ngx_quic_payload_handler(ngx_connection_t *c, | |
83 ngx_quic_header_t *pkt); | |
84 | |
85 static ngx_int_t ngx_quic_handle_ack_frame(ngx_connection_t *c, | |
86 ngx_quic_header_t *pkt, ngx_quic_ack_frame_t *f); | |
87 static ngx_int_t ngx_quic_handle_crypto_frame(ngx_connection_t *c, | |
88 ngx_quic_header_t *pkt, ngx_quic_crypto_frame_t *frame); | |
89 static ngx_int_t ngx_quic_handle_stream_frame(ngx_connection_t *c, | |
90 ngx_quic_header_t *pkt, ngx_quic_stream_frame_t *frame); | |
91 | |
92 static void ngx_quic_queue_frame(ngx_quic_connection_t *qc, | |
93 ngx_quic_frame_t *frame); | |
94 | |
95 static ngx_int_t ngx_quic_output(ngx_connection_t *c); | |
96 ngx_int_t ngx_quic_frames_send(ngx_connection_t *c, ngx_quic_frame_t *start, | |
97 ngx_quic_frame_t *end, size_t total); | |
98 static ngx_int_t ngx_quic_send_packet(ngx_connection_t *c, | |
99 ngx_quic_connection_t *qc, enum ssl_encryption_level_t level, | |
100 ngx_str_t *payload); | |
101 | |
102 | |
103 static void ngx_quic_rbtree_insert_stream(ngx_rbtree_node_t *temp, | |
104 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); | |
105 static ngx_quic_stream_node_t *ngx_quic_find_stream(ngx_rbtree_t *rbtree, | |
106 ngx_uint_t key); | |
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107 static ngx_quic_stream_node_t *ngx_quic_create_stream(ngx_connection_t *c, |
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108 ngx_uint_t id); |
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109 static ssize_t ngx_quic_stream_recv(ngx_connection_t *c, u_char *buf, |
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110 size_t size); |
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111 static ssize_t ngx_quic_stream_send(ngx_connection_t *c, u_char *buf, |
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112 size_t size); |
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Send a FIN frame when QUIC stream is closed.
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113 static void ngx_quic_stream_cleanup_handler(void *data); |
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114 static ngx_chain_t *ngx_quic_stream_send_chain(ngx_connection_t *c, |
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115 ngx_chain_t *in, off_t limit); |
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116 |
7691 | 117 |
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118 static SSL_QUIC_METHOD quic_method = { |
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119 #if BORINGSSL_API_VERSION >= 10 |
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120 ngx_quic_set_read_secret, |
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121 ngx_quic_set_write_secret, |
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122 #else |
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123 ngx_quic_set_encryption_secrets, |
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124 #endif |
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125 ngx_quic_add_handshake_data, |
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126 ngx_quic_flush_flight, |
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127 ngx_quic_send_alert, |
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128 }; |
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129 |
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130 |
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131 #if BORINGSSL_API_VERSION >= 10 |
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132 |
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133 static int |
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134 ngx_quic_set_read_secret(ngx_ssl_conn_t *ssl_conn, |
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135 enum ssl_encryption_level_t level, const SSL_CIPHER *cipher, |
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136 const uint8_t *rsecret, size_t secret_len) |
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137 { |
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138 ngx_connection_t *c; |
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139 |
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140 c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn); |
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141 |
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142 ngx_quic_hexdump(c->log, "level:%d read secret", |
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143 rsecret, secret_len, level); |
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144 |
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145 return ngx_quic_set_encryption_secret(c->pool, ssl_conn, level, |
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146 rsecret, secret_len, |
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147 &c->quic->secrets.client); |
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148 } |
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149 |
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150 |
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151 static int |
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152 ngx_quic_set_write_secret(ngx_ssl_conn_t *ssl_conn, |
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153 enum ssl_encryption_level_t level, const SSL_CIPHER *cipher, |
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154 const uint8_t *wsecret, size_t secret_len) |
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155 { |
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156 ngx_connection_t *c; |
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157 |
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158 c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn); |
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159 |
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160 ngx_quic_hexdump(c->log, "level:%d write secret", |
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161 wsecret, secret_len, level); |
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162 |
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163 return ngx_quic_set_encryption_secret(c->pool, ssl_conn, level, |
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164 wsecret, secret_len, |
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165 &c->quic->secrets.server); |
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166 } |
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167 |
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168 #else |
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169 |
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170 static int |
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171 ngx_quic_set_encryption_secrets(ngx_ssl_conn_t *ssl_conn, |
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172 enum ssl_encryption_level_t level, const uint8_t *rsecret, |
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173 const uint8_t *wsecret, size_t secret_len) |
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174 { |
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175 ngx_int_t rc; |
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176 ngx_connection_t *c; |
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177 |
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178 c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn); |
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179 |
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180 ngx_quic_hexdump(c->log, "level:%d read", rsecret, secret_len, level); |
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181 ngx_quic_hexdump(c->log, "level:%d write", wsecret, secret_len, level); |
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182 |
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183 rc = ngx_quic_set_encryption_secret(c->pool, ssl_conn, level, |
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184 rsecret, secret_len, |
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185 &c->quic->secrets.client); |
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186 if (rc != 1) { |
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187 return rc; |
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188 } |
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189 |
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190 return ngx_quic_set_encryption_secret(c->pool, ssl_conn, level, |
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191 wsecret, secret_len, |
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192 &c->quic->secrets.server); |
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193 } |
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194 |
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195 #endif |
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196 |
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197 |
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198 static int |
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199 ngx_quic_add_handshake_data(ngx_ssl_conn_t *ssl_conn, |
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200 enum ssl_encryption_level_t level, const uint8_t *data, size_t len) |
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201 { |
7691 | 202 u_char *p; |
203 ngx_quic_frame_t *frame; | |
204 ngx_connection_t *c; | |
205 ngx_quic_connection_t *qc; | |
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206 |
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207 c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn); |
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208 qc = c->quic; |
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209 |
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210 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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211 "ngx_quic_add_handshake_data"); |
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212 |
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213 frame = ngx_pcalloc(c->pool, sizeof(ngx_quic_frame_t)); |
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214 if (frame == NULL) { |
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215 return 0; |
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216 } |
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217 |
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218 p = ngx_pnalloc(c->pool, len); |
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219 if (p == NULL) { |
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220 return 0; |
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221 } |
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222 |
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223 ngx_memcpy(p, data, len); |
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224 |
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225 frame->level = level; |
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226 frame->type = NGX_QUIC_FT_CRYPTO; |
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227 frame->u.crypto.len = len; |
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228 frame->u.crypto.data = p; |
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229 |
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230 ngx_sprintf(frame->info, "crypto, generated by SSL len=%ui level=%d", len, level); |
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231 |
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232 ngx_quic_queue_frame(qc, frame); |
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233 |
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234 return 1; |
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235 } |
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236 |
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237 |
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238 static int |
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239 ngx_quic_flush_flight(ngx_ssl_conn_t *ssl_conn) |
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240 { |
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241 ngx_connection_t *c; |
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242 |
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243 c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn); |
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244 |
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245 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "ngx_quic_flush_flight()"); |
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246 |
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247 return 1; |
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248 } |
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249 |
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250 |
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251 static int |
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252 ngx_quic_send_alert(ngx_ssl_conn_t *ssl_conn, enum ssl_encryption_level_t level, |
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253 uint8_t alert) |
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254 { |
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255 ngx_connection_t *c; |
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256 ngx_quic_frame_t *frame; |
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257 |
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258 c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn); |
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259 |
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260 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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261 "ngx_quic_send_alert(), lvl=%d, alert=%d", |
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|
262 (int) level, (int) alert); |
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263 |
7701
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|
264 frame = ngx_pcalloc(c->pool, sizeof(ngx_quic_frame_t)); |
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265 if (frame == NULL) { |
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266 return 0; |
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267 } |
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268 |
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|
269 frame->level = level; |
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|
270 frame->type = NGX_QUIC_FT_CONNECTION_CLOSE; |
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|
271 frame->u.close.error_code = 0x100 + alert; |
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272 |
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273 ngx_quic_queue_frame(c->quic, frame); |
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274 |
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275 if (ngx_quic_output(c) != NGX_OK) { |
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276 return 0; |
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277 } |
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278 |
7648
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Moved all QUIC code into ngx_event_quic.c
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279 return 1; |
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Moved all QUIC code into ngx_event_quic.c
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280 } |
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281 |
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282 |
7691 | 283 void |
284 ngx_quic_run(ngx_connection_t *c, ngx_ssl_t *ssl, ngx_msec_t timeout, | |
285 ngx_connection_handler_pt handler) | |
286 { | |
287 ngx_buf_t *b; | |
288 ngx_quic_header_t pkt; | |
289 | |
290 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "quic handshake"); | |
291 | |
292 c->log->action = "QUIC handshaking"; | |
293 | |
294 ngx_memzero(&pkt, sizeof(ngx_quic_header_t)); | |
295 | |
296 b = c->buffer; | |
297 | |
298 pkt.log = c->log; | |
299 pkt.raw = b; | |
300 pkt.data = b->start; | |
301 pkt.len = b->last - b->start; | |
302 | |
303 if (ngx_quic_new_connection(c, ssl, &pkt) != NGX_OK) { | |
304 ngx_quic_close_connection(c); | |
305 return; | |
306 } | |
307 | |
308 // we don't need stream handler for initial packet processing | |
309 c->quic->streams.handler = handler; | |
310 c->quic->streams.timeout = timeout; | |
311 | |
312 ngx_add_timer(c->read, timeout); | |
313 | |
314 c->read->handler = ngx_quic_handshake_handler; | |
315 | |
316 return; | |
317 } | |
318 | |
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319 |
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320 static ngx_int_t |
7691 | 321 ngx_quic_new_connection(ngx_connection_t *c, ngx_ssl_t *ssl, |
322 ngx_quic_header_t *pkt) | |
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323 { |
7691 | 324 ngx_quic_connection_t *qc; |
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325 |
7691 | 326 if (ngx_buf_size(pkt->raw) < 1200) { |
327 ngx_log_error(NGX_LOG_INFO, c->log, 0, "too small UDP datagram"); | |
328 return NGX_ERROR; | |
329 } | |
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330 |
7691 | 331 if (ngx_quic_parse_long_header(pkt) != NGX_OK) { |
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332 return NGX_ERROR; |
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|
333 } |
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334 |
7691 | 335 if ((pkt->flags & 0xf0) != NGX_QUIC_PKT_INITIAL) { |
336 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
337 "invalid initial packet: 0x%xi", pkt->flags); | |
338 return NGX_ERROR; | |
339 } | |
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340 |
7691 | 341 if (ngx_quic_parse_initial_header(pkt) != NGX_OK) { |
342 return NGX_ERROR; | |
343 } | |
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344 |
7691 | 345 qc = ngx_pcalloc(c->pool, sizeof(ngx_quic_connection_t)); |
346 if (qc == NULL) { | |
347 return NGX_ERROR; | |
7665
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|
348 } |
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|
349 |
7691 | 350 ngx_rbtree_init(&qc->streams.tree, &qc->streams.sentinel, |
351 ngx_quic_rbtree_insert_stream); | |
352 | |
353 c->quic = qc; | |
354 qc->ssl = ssl; | |
355 | |
356 qc->dcid.len = pkt->dcid.len; | |
357 qc->dcid.data = ngx_pnalloc(c->pool, pkt->dcid.len); | |
358 if (qc->dcid.data == NULL) { | |
359 return NGX_ERROR; | |
360 } | |
361 ngx_memcpy(qc->dcid.data, pkt->dcid.data, qc->dcid.len); | |
362 | |
363 qc->scid.len = pkt->scid.len; | |
364 qc->scid.data = ngx_pnalloc(c->pool, qc->scid.len); | |
365 if (qc->scid.data == NULL) { | |
366 return NGX_ERROR; | |
367 } | |
368 ngx_memcpy(qc->scid.data, pkt->scid.data, qc->scid.len); | |
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369 |
7691 | 370 qc->token.len = pkt->token.len; |
371 qc->token.data = ngx_pnalloc(c->pool, qc->token.len); | |
372 if (qc->token.data == NULL) { | |
373 return NGX_ERROR; | |
374 } | |
375 ngx_memcpy(qc->token.data, pkt->token.data, qc->token.len); | |
376 | |
377 | |
378 if (ngx_quic_set_initial_secret(c->pool, &qc->secrets, &qc->dcid) | |
379 != NGX_OK) | |
380 { | |
381 return NGX_ERROR; | |
382 } | |
7665
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|
383 |
7691 | 384 pkt->secret = &qc->secrets.client.in; |
385 pkt->level = ssl_encryption_initial; | |
386 | |
387 if (ngx_quic_decrypt(c->pool, NULL, pkt) != NGX_OK) { | |
388 return NGX_ERROR; | |
389 } | |
390 | |
391 if (ngx_quic_init_connection(c) != NGX_OK) { | |
392 return NGX_ERROR; | |
393 } | |
394 | |
395 return ngx_quic_payload_handler(c, pkt); | |
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396 } |
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397 |
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398 |
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399 static ngx_int_t |
7687
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Split transport and crypto parts into separate files.
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400 ngx_quic_init_connection(ngx_connection_t *c) |
7665
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401 { |
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402 int n, sslerr; |
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|
403 ngx_ssl_conn_t *ssl_conn; |
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404 ngx_quic_connection_t *qc; |
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|
405 |
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|
406 static const uint8_t params[] = |
a5423632d67b
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|
407 "\x00\x29" /* parameters length: 41 bytes */ |
a5423632d67b
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|
408 "\x00\x0e\x00\x01\x05" /* active connection id limit: 5 */ |
a5423632d67b
Added more transport parameters.
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|
409 "\x00\x04\x00\x04\x80\x98\x96\x80" /* initial max data = 10000000 */ |
a5423632d67b
Added more transport parameters.
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|
410 "\x00\x09\x00\x01\x03" /* initial max streams uni: 3 */ |
a5423632d67b
Added more transport parameters.
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diff
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|
411 "\x00\x08\x00\x01\x10" /* initial max streams bidi: 16 */ |
a5423632d67b
Added more transport parameters.
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|
412 "\x00\x05\x00\x02\x40\xff" /* initial max stream bidi local: 255 */ |
a5423632d67b
Added more transport parameters.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
413 "\x00\x06\x00\x02\x40\xff" /* initial max stream bidi remote: 255 */ |
a5423632d67b
Added more transport parameters.
Vladimir Homutov <vl@nginx.com>
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diff
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|
414 "\x00\x07\x00\x02\x40\xff"; /* initial max stream data uni: 255 */ |
7665
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|
415 |
1297dc83a6b9
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diff
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|
416 qc = c->quic; |
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diff
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|
417 |
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|
418 if (ngx_ssl_create_connection(qc->ssl, c, NGX_SSL_BUFFER) != NGX_OK) { |
1297dc83a6b9
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|
419 return NGX_ERROR; |
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|
420 } |
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|
421 |
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|
422 ssl_conn = c->ssl->connection; |
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diff
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|
423 |
7698
253cf267f95a
Moved setting QUIC methods to runtime.
Roman Arutyunyan <arut@nginx.com>
parents:
7697
diff
changeset
|
424 if (SSL_set_quic_method(ssl_conn, &quic_method) == 0) { |
253cf267f95a
Moved setting QUIC methods to runtime.
Roman Arutyunyan <arut@nginx.com>
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7697
diff
changeset
|
425 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
253cf267f95a
Moved setting QUIC methods to runtime.
Roman Arutyunyan <arut@nginx.com>
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7697
diff
changeset
|
426 "SSL_set_quic_method() failed"); |
253cf267f95a
Moved setting QUIC methods to runtime.
Roman Arutyunyan <arut@nginx.com>
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7697
diff
changeset
|
427 return NGX_ERROR; |
253cf267f95a
Moved setting QUIC methods to runtime.
Roman Arutyunyan <arut@nginx.com>
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7697
diff
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|
428 } |
253cf267f95a
Moved setting QUIC methods to runtime.
Roman Arutyunyan <arut@nginx.com>
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7697
diff
changeset
|
429 |
7671
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diff
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|
430 if (SSL_set_quic_transport_params(ssl_conn, params, sizeof(params) - 1) == 0) { |
7665
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|
431 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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|
432 "SSL_set_quic_transport_params() failed"); |
1297dc83a6b9
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|
433 return NGX_ERROR; |
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diff
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|
434 } |
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|
435 |
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diff
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|
436 n = SSL_do_handshake(ssl_conn); |
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diff
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|
437 |
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diff
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|
438 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n); |
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|
439 |
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|
440 if (n == -1) { |
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|
441 sslerr = SSL_get_error(ssl_conn, n); |
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|
442 |
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|
443 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", |
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changeset
|
444 sslerr); |
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Generic payload handler for quic packets.
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|
445 } |
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Generic payload handler for quic packets.
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|
446 |
1297dc83a6b9
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diff
changeset
|
447 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
1297dc83a6b9
Generic payload handler for quic packets.
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diff
changeset
|
448 "SSL_quic_read_level: %d, SSL_quic_write_level: %d", |
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|
449 (int) SSL_quic_read_level(ssl_conn), |
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Generic payload handler for quic packets.
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|
450 (int) SSL_quic_write_level(ssl_conn)); |
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diff
changeset
|
451 |
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diff
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|
452 return NGX_OK; |
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Generic payload handler for quic packets.
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diff
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|
453 } |
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Generic payload handler for quic packets.
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|
454 |
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changeset
|
455 |
7691 | 456 static void |
457 ngx_quic_handshake_handler(ngx_event_t *rev) | |
7677
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Stream "connection" read/write methods.
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diff
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|
458 { |
7691 | 459 ssize_t n; |
460 ngx_buf_t b; | |
461 ngx_connection_t *c; | |
7677
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Stream "connection" read/write methods.
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diff
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|
462 |
7691 | 463 u_char buf[512]; |
7677
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Stream "connection" read/write methods.
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diff
changeset
|
464 |
7691 | 465 b.start = buf; |
466 b.end = buf + 512; | |
467 b.pos = b.last = b.start; | |
7677
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Stream "connection" read/write methods.
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diff
changeset
|
468 |
7691 | 469 c = rev->data; |
7677
6bc18966b8c1
Stream "connection" read/write methods.
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7675
diff
changeset
|
470 |
7691 | 471 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, rev->log, 0, "quic handshake handler"); |
7678
e3c0b19a3a8a
Implemented ngx_quic_stream_send_chain() method.
Roman Arutyunyan <arut@nginx.com>
parents:
7677
diff
changeset
|
472 |
7691 | 473 if (rev->timedout) { |
474 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
475 ngx_quic_close_connection(c); | |
476 return; | |
7678
e3c0b19a3a8a
Implemented ngx_quic_stream_send_chain() method.
Roman Arutyunyan <arut@nginx.com>
parents:
7677
diff
changeset
|
477 } |
e3c0b19a3a8a
Implemented ngx_quic_stream_send_chain() method.
Roman Arutyunyan <arut@nginx.com>
parents:
7677
diff
changeset
|
478 |
7691 | 479 if (c->close) { |
480 ngx_quic_close_connection(c); | |
481 return; | |
482 } | |
7686
7ada2feeac18
Added processing of CONNECTION CLOSE frames.
Vladimir Homutov <vl@nginx.com>
parents:
7684
diff
changeset
|
483 |
7691 | 484 n = c->recv(c, b.start, b.end - b.start); |
7681 | 485 |
7691 | 486 if (n == NGX_AGAIN) { |
487 return; | |
7665
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
488 } |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
489 |
7691 | 490 if (n == NGX_ERROR) { |
491 c->read->eof = 1; | |
492 ngx_quic_close_connection(c); | |
493 return; | |
7665
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
494 } |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
495 |
7691 | 496 b.last += n; |
7665
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
497 |
7691 | 498 if (ngx_quic_input(c, &b) != NGX_OK) { |
499 ngx_quic_close_connection(c); | |
500 return; | |
501 } | |
7665
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
502 } |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
503 |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
504 |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
505 static void |
7691 | 506 ngx_quic_close_connection(ngx_connection_t *c) |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
507 { |
7691 | 508 ngx_pool_t *pool; |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
509 |
7691 | 510 /* XXX wait for all streams to close */ |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
511 |
7691 | 512 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
513 "close quic connection: %d", c->fd); | |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
514 |
7691 | 515 if (c->ssl) { |
516 (void) ngx_ssl_shutdown(c); | |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
517 } |
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
518 |
7691 | 519 #if (NGX_STAT_STUB) |
520 (void) ngx_atomic_fetch_add(ngx_stat_active, -1); | |
521 #endif | |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
522 |
7691 | 523 c->destroyed = 1; |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
524 |
7691 | 525 pool = c->pool; |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
526 |
7691 | 527 ngx_close_connection(c); |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
528 |
7691 | 529 ngx_destroy_pool(pool); |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
530 } |
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
531 |
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
532 |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
533 static ngx_int_t |
7691 | 534 ngx_quic_input(ngx_connection_t *c, ngx_buf_t *b) |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
535 { |
7691 | 536 u_char *p; |
537 ngx_int_t rc; | |
538 ngx_quic_header_t pkt; | |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
539 |
7691 | 540 if (c->quic == NULL) { |
541 // XXX: possible? | |
542 ngx_log_error(NGX_LOG_INFO, c->log, 0, "BUG: no QUIC in connection"); | |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
543 return NGX_ERROR; |
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
544 } |
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
545 |
7691 | 546 p = b->start; |
7674
4ae9ac69ab93
HTTP/QUIC interface reworked.
Vladimir Homutov <vl@nginx.com>
parents:
7673
diff
changeset
|
547 |
7691 | 548 do { |
549 ngx_memzero(&pkt, sizeof(ngx_quic_header_t)); | |
550 pkt.raw = b; | |
551 pkt.data = p; | |
552 pkt.len = b->last - p; | |
553 pkt.log = c->log; | |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
554 |
7691 | 555 if (p[0] == 0) { |
556 /* XXX: no idea WTF is this, just ignore */ | |
557 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "FIREFOX: ZEROES"); | |
558 break; | |
559 } | |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
560 |
7691 | 561 // TODO: check current state |
562 if (p[0] & NGX_QUIC_PKT_LONG) { | |
563 | |
564 if ((p[0] & 0xf0) == NGX_QUIC_PKT_INITIAL) { | |
565 rc = ngx_quic_initial_input(c, &pkt); | |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
566 |
7691 | 567 } else if ((p[0] & 0xf0) == NGX_QUIC_PKT_HANDSHAKE) { |
568 rc = ngx_quic_handshake_input(c, &pkt); | |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
569 |
7691 | 570 } else { |
571 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
572 "BUG: unknown quic state"); | |
573 return NGX_ERROR; | |
574 } | |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
575 |
7691 | 576 } else { |
577 rc = ngx_quic_app_input(c, &pkt); | |
578 } | |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
579 |
7691 | 580 if (rc == NGX_ERROR) { |
581 return NGX_ERROR; | |
582 } | |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
583 |
7691 | 584 /* b->pos is at header end, adjust by actual packet length */ |
585 p = b->pos + pkt.len; | |
586 b->pos = p; /* reset b->pos to the next packet start */ | |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
587 |
7691 | 588 } while (p < b->last); |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
589 |
7691 | 590 return NGX_OK; |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
591 } |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
592 |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
593 |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
594 static ngx_int_t |
7689 | 595 ngx_quic_initial_input(ngx_connection_t *c, ngx_quic_header_t *pkt) |
596 { | |
597 ngx_ssl_conn_t *ssl_conn; | |
598 ngx_quic_connection_t *qc; | |
599 | |
600 qc = c->quic; | |
601 ssl_conn = c->ssl->connection; | |
602 | |
7690
ae35ccba7aa6
Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
7689
diff
changeset
|
603 if (ngx_quic_parse_long_header(pkt) != NGX_OK) { |
7689 | 604 return NGX_ERROR; |
605 } | |
606 | |
7690
ae35ccba7aa6
Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
7689
diff
changeset
|
607 if (ngx_quic_parse_initial_header(pkt) != NGX_OK) { |
7689 | 608 return NGX_ERROR; |
609 } | |
610 | |
611 pkt->secret = &qc->secrets.client.in; | |
612 pkt->level = ssl_encryption_initial; | |
613 | |
614 if (ngx_quic_decrypt(c->pool, ssl_conn, pkt) != NGX_OK) { | |
615 return NGX_ERROR; | |
616 } | |
617 | |
618 return ngx_quic_payload_handler(c, pkt); | |
619 } | |
620 | |
621 | |
622 static ngx_int_t | |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
623 ngx_quic_handshake_input(ngx_connection_t *c, ngx_quic_header_t *pkt) |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
624 { |
7654
bf555b94e387
Using cached ssl_conn in ngx_quic_handshake_input(), NFC.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7653
diff
changeset
|
625 ngx_ssl_conn_t *ssl_conn; |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
626 ngx_quic_connection_t *qc; |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
627 |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
628 qc = c->quic; |
7654
bf555b94e387
Using cached ssl_conn in ngx_quic_handshake_input(), NFC.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7653
diff
changeset
|
629 ssl_conn = c->ssl->connection; |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
630 |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
631 /* extract cleartext data into pkt */ |
7690
ae35ccba7aa6
Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
7689
diff
changeset
|
632 if (ngx_quic_parse_long_header(pkt) != NGX_OK) { |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
633 return NGX_ERROR; |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
634 } |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
635 |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
636 if (pkt->dcid.len != qc->dcid.len) { |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
637 ngx_log_error(NGX_LOG_INFO, c->log, 0, "unexpected quic dcidl"); |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
638 return NGX_ERROR; |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
639 } |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
640 |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
641 if (ngx_memcmp(pkt->dcid.data, qc->dcid.data, qc->dcid.len) != 0) { |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
642 ngx_log_error(NGX_LOG_INFO, c->log, 0, "unexpected quic dcid"); |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
643 return NGX_ERROR; |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
644 } |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
645 |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
646 if (pkt->scid.len != qc->scid.len) { |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
647 ngx_log_error(NGX_LOG_INFO, c->log, 0, "unexpected quic scidl"); |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
648 return NGX_ERROR; |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
649 } |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
650 |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
651 if (ngx_memcmp(pkt->scid.data, qc->scid.data, qc->scid.len) != 0) { |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
652 ngx_log_error(NGX_LOG_INFO, c->log, 0, "unexpected quic scid"); |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
653 return NGX_ERROR; |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
654 } |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
655 |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
656 if ((pkt->flags & 0xf0) != NGX_QUIC_PKT_HANDSHAKE) { |
7659
4355efde26d8
Added functions to decrypt long packets.
Vladimir Homutov <vl@nginx.com>
parents:
7658
diff
changeset
|
657 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
658 "invalid packet type: 0x%xi", pkt->flags); |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
659 return NGX_ERROR; |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
660 } |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
661 |
7690
ae35ccba7aa6
Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
7689
diff
changeset
|
662 if (ngx_quic_parse_handshake_header(pkt) != NGX_OK) { |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
663 return NGX_ERROR; |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
664 } |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
665 |
7687
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
7686
diff
changeset
|
666 pkt->secret = &qc->secrets.client.hs; |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
667 pkt->level = ssl_encryption_handshake; |
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
668 |
7687
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
7686
diff
changeset
|
669 if (ngx_quic_decrypt(c->pool, c->ssl->connection, pkt) != NGX_OK) { |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
670 return NGX_ERROR; |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
671 } |
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
672 |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
673 return ngx_quic_payload_handler(c, pkt); |
7665
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
674 } |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
675 |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
676 |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
677 static ngx_int_t |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
678 ngx_quic_app_input(ngx_connection_t *c, ngx_quic_header_t *pkt) |
7665
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
679 { |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
680 ngx_quic_connection_t *qc; |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
681 |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
682 qc = c->quic; |
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
683 |
7689 | 684 if (qc->secrets.client.ad.key.len == 0) { |
685 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
686 "no read keys yet, packet ignored"); | |
687 return NGX_DECLINED; | |
688 } | |
7665
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
689 |
7690
ae35ccba7aa6
Extracted transport part of the code into separate file.
Vladimir Homutov <vl@nginx.com>
parents:
7689
diff
changeset
|
690 if (ngx_quic_parse_short_header(pkt, &qc->dcid) != NGX_OK) { |
7651
6a76d9657772
QUIC handshake final bits.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7650
diff
changeset
|
691 return NGX_ERROR; |
6a76d9657772
QUIC handshake final bits.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7650
diff
changeset
|
692 } |
6a76d9657772
QUIC handshake final bits.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7650
diff
changeset
|
693 |
7687
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
7686
diff
changeset
|
694 pkt->secret = &qc->secrets.client.ad; |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
695 pkt->level = ssl_encryption_application; |
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
696 |
7687
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
7686
diff
changeset
|
697 if (ngx_quic_decrypt(c->pool, c->ssl->connection, pkt) != NGX_OK) { |
7665
1297dc83a6b9
Generic payload handler for quic packets.
Vladimir Homutov <vl@nginx.com>
parents:
7664
diff
changeset
|
698 return NGX_ERROR; |
7651
6a76d9657772
QUIC handshake final bits.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7650
diff
changeset
|
699 } |
6a76d9657772
QUIC handshake final bits.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7650
diff
changeset
|
700 |
7672
8d6ac639feac
Added support of multiple QUIC packets in single datagram.
Vladimir Homutov <vl@nginx.com>
parents:
7671
diff
changeset
|
701 return ngx_quic_payload_handler(c, pkt); |
7648
b28ea685a56e
Moved all QUIC code into ngx_event_quic.c
Vladimir Homutov <vl@nginx.com>
parents:
7646
diff
changeset
|
702 } |
7637 | 703 |
704 | |
7691 | 705 static ngx_int_t |
706 ngx_quic_payload_handler(ngx_connection_t *c, ngx_quic_header_t *pkt) | |
707 { | |
708 u_char *end, *p; | |
709 ssize_t len; | |
710 ngx_uint_t ack_this, do_close; | |
711 ngx_quic_frame_t frame, *ack_frame; | |
712 ngx_quic_connection_t *qc; | |
713 | |
714 qc = c->quic; | |
715 | |
716 p = pkt->payload.data; | |
717 end = p + pkt->payload.len; | |
718 | |
719 ack_this = 0; | |
720 do_close = 0; | |
721 | |
722 while (p < end) { | |
723 | |
7706
1f002206a59b
Added boundaries checks into frame parser.
Vladimir Homutov <vl@nginx.com>
parents:
7705
diff
changeset
|
724 len = ngx_quic_parse_frame(pkt, p, end, &frame); |
7691 | 725 if (len < 0) { |
726 return NGX_ERROR; | |
727 } | |
728 | |
729 p += len; | |
730 | |
731 switch (frame.type) { | |
732 | |
733 case NGX_QUIC_FT_ACK: | |
734 if (ngx_quic_handle_ack_frame(c, pkt, &frame.u.ack) != NGX_OK) { | |
735 return NGX_ERROR; | |
736 } | |
737 | |
738 break; | |
739 | |
740 case NGX_QUIC_FT_CRYPTO: | |
741 | |
742 if (ngx_quic_handle_crypto_frame(c, pkt, &frame.u.crypto) | |
743 != NGX_OK) | |
744 { | |
745 return NGX_ERROR; | |
746 } | |
747 | |
748 ack_this = 1; | |
749 break; | |
750 | |
751 case NGX_QUIC_FT_PADDING: | |
752 break; | |
753 | |
754 case NGX_QUIC_FT_PING: | |
755 ack_this = 1; | |
756 break; | |
757 | |
758 case NGX_QUIC_FT_NEW_CONNECTION_ID: | |
759 ack_this = 1; | |
760 break; | |
761 | |
762 case NGX_QUIC_FT_CONNECTION_CLOSE: | |
763 | |
764 do_close = 1; | |
765 break; | |
766 | |
767 case NGX_QUIC_FT_STREAM0: | |
768 case NGX_QUIC_FT_STREAM1: | |
769 case NGX_QUIC_FT_STREAM2: | |
770 case NGX_QUIC_FT_STREAM3: | |
771 case NGX_QUIC_FT_STREAM4: | |
772 case NGX_QUIC_FT_STREAM5: | |
773 case NGX_QUIC_FT_STREAM6: | |
774 case NGX_QUIC_FT_STREAM7: | |
775 | |
776 if (ngx_quic_handle_stream_frame(c, pkt, &frame.u.stream) | |
777 != NGX_OK) | |
778 { | |
779 return NGX_ERROR; | |
780 } | |
781 | |
782 ack_this = 1; | |
783 break; | |
784 | |
7703
ff540f13d95d
MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7702
diff
changeset
|
785 case NGX_QUIC_FT_MAX_DATA: |
ff540f13d95d
MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7702
diff
changeset
|
786 c->quic->max_data = frame.u.max_data.max_data; |
ff540f13d95d
MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7702
diff
changeset
|
787 ack_this = 1; |
ff540f13d95d
MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7702
diff
changeset
|
788 break; |
ff540f13d95d
MAX_DATA frame parser/handler.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7702
diff
changeset
|
789 |
7697
78540e2160d0
Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents:
7695
diff
changeset
|
790 case NGX_QUIC_FT_RESET_STREAM: |
7706
1f002206a59b
Added boundaries checks into frame parser.
Vladimir Homutov <vl@nginx.com>
parents:
7705
diff
changeset
|
791 /* TODO: handle */ |
7697
78540e2160d0
Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents:
7695
diff
changeset
|
792 break; |
78540e2160d0
Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents:
7695
diff
changeset
|
793 |
78540e2160d0
Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents:
7695
diff
changeset
|
794 case NGX_QUIC_FT_STOP_SENDING: |
7706
1f002206a59b
Added boundaries checks into frame parser.
Vladimir Homutov <vl@nginx.com>
parents:
7705
diff
changeset
|
795 /* TODO: handle; need ack ? */ |
7697
78540e2160d0
Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents:
7695
diff
changeset
|
796 break; |
78540e2160d0
Added parsing of RESET_STREAM and STOP_SENDING frames
Vladimir Homutov <vl@nginx.com>
parents:
7695
diff
changeset
|
797 |
7702
d3b26c3bea22
Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
parents:
7701
diff
changeset
|
798 case NGX_QUIC_FT_STREAMS_BLOCKED: |
d3b26c3bea22
Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
parents:
7701
diff
changeset
|
799 case NGX_QUIC_FT_STREAMS_BLOCKED2: |
7706
1f002206a59b
Added boundaries checks into frame parser.
Vladimir Homutov <vl@nginx.com>
parents:
7705
diff
changeset
|
800 /* TODO: handle; need ack ? */ |
7702
d3b26c3bea22
Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
parents:
7701
diff
changeset
|
801 break; |
d3b26c3bea22
Added parsing of STREAMS BLOCKED frames.
Vladimir Homutov <vl@nginx.com>
parents:
7701
diff
changeset
|
802 |
7691 | 803 default: |
804 return NGX_ERROR; | |
805 } | |
806 } | |
807 | |
808 if (p != end) { | |
809 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
810 "trailing garbage in payload: %ui bytes", end - p); | |
811 return NGX_ERROR; | |
812 } | |
813 | |
814 if (do_close) { | |
815 // TODO: handle stream close | |
816 } | |
817 | |
818 if (ack_this == 0) { | |
819 /* do not ack packets with ACKs and PADDING */ | |
820 return NGX_OK; | |
821 } | |
822 | |
823 // packet processed, ACK it now if required | |
824 // TODO: if (ack_required) ... - currently just ack each packet | |
825 | |
826 ack_frame = ngx_pcalloc(c->pool, sizeof(ngx_quic_frame_t)); | |
827 if (ack_frame == NULL) { | |
828 return NGX_ERROR; | |
829 } | |
830 | |
831 ack_frame->level = pkt->level; | |
832 ack_frame->type = NGX_QUIC_FT_ACK; | |
833 ack_frame->u.ack.pn = pkt->pn; | |
834 | |
835 ngx_sprintf(ack_frame->info, "ACK for PN=%d from frame handler level=%d", pkt->pn, pkt->level); | |
836 ngx_quic_queue_frame(qc, ack_frame); | |
837 | |
838 return ngx_quic_output(c); | |
839 } | |
840 | |
841 | |
842 static ngx_int_t | |
843 ngx_quic_handle_ack_frame(ngx_connection_t *c, ngx_quic_header_t *pkt, | |
844 ngx_quic_ack_frame_t *f) | |
845 { | |
846 /* TODO: handle ACK here */ | |
847 return NGX_OK; | |
848 } | |
849 | |
850 | |
851 static ngx_int_t | |
852 ngx_quic_handle_crypto_frame(ngx_connection_t *c, ngx_quic_header_t *pkt, | |
853 ngx_quic_crypto_frame_t *f) | |
854 { | |
855 int sslerr; | |
856 ssize_t n; | |
857 ngx_ssl_conn_t *ssl_conn; | |
858 | |
859 if (f->offset != 0x0) { | |
860 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
861 "crypto frame with non-zero offset"); | |
862 // TODO: add support for crypto frames spanning packets | |
863 return NGX_ERROR; | |
864 } | |
865 | |
866 ssl_conn = c->ssl->connection; | |
867 | |
868 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
869 "SSL_quic_read_level: %d, SSL_quic_write_level: %d", | |
870 (int) SSL_quic_read_level(ssl_conn), | |
871 (int) SSL_quic_write_level(ssl_conn)); | |
872 | |
873 if (!SSL_provide_quic_data(ssl_conn, SSL_quic_read_level(ssl_conn), | |
874 f->data, f->len)) | |
875 { | |
876 ngx_ssl_error(NGX_LOG_INFO, c->log, 0, | |
877 "SSL_provide_quic_data() failed"); | |
878 return NGX_ERROR; | |
879 } | |
880 | |
881 n = SSL_do_handshake(ssl_conn); | |
882 | |
883 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n); | |
884 | |
885 if (n == -1) { | |
886 sslerr = SSL_get_error(ssl_conn, n); | |
887 | |
888 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", | |
889 sslerr); | |
890 | |
891 if (sslerr == SSL_ERROR_SSL) { | |
892 ngx_ssl_error(NGX_LOG_ERR, c->log, 0, "SSL_do_handshake() failed"); | |
893 } | |
894 } | |
895 | |
896 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
897 "quic ssl cipher: %s", SSL_get_cipher(ssl_conn)); | |
898 | |
899 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
900 "SSL_quic_read_level: %d, SSL_quic_write_level: %d", | |
901 (int) SSL_quic_read_level(ssl_conn), | |
902 (int) SSL_quic_write_level(ssl_conn)); | |
903 | |
904 return NGX_OK; | |
905 } | |
906 | |
907 | |
908 static ngx_int_t | |
909 ngx_quic_handle_stream_frame(ngx_connection_t *c, | |
910 ngx_quic_header_t *pkt, ngx_quic_stream_frame_t *f) | |
911 { | |
912 ngx_buf_t *b; | |
913 ngx_quic_connection_t *qc; | |
914 ngx_quic_stream_node_t *sn; | |
915 | |
916 qc = c->quic; | |
917 | |
918 sn = ngx_quic_find_stream(&qc->streams.tree, f->stream_id); | |
919 | |
920 if (sn) { | |
921 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "existing stream"); | |
922 b = sn->b; | |
923 | |
924 if ((size_t) (b->end - b->pos) < f->length) { | |
925 ngx_log_error(NGX_LOG_INFO, c->log, 0, "no space in stream buffer"); | |
926 return NGX_ERROR; | |
927 } | |
928 | |
929 ngx_memcpy(b->pos, f->data, f->length); | |
930 b->pos += f->length; | |
931 | |
932 // TODO: notify | |
933 | |
934 return NGX_OK; | |
935 } | |
936 | |
937 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "stream is new"); | |
938 | |
7695
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
parents:
7691
diff
changeset
|
939 sn = ngx_quic_create_stream(c, f->stream_id); |
7691 | 940 if (sn == NULL) { |
941 return NGX_ERROR; | |
942 } | |
943 | |
944 b = sn->b; | |
945 | |
946 ngx_memcpy(b->start, f->data, f->length); | |
947 b->last = b->start + f->length; | |
948 | |
949 qc->streams.handler(sn->c); | |
950 | |
951 return NGX_OK; | |
952 } | |
953 | |
954 | |
955 static void | |
956 ngx_quic_queue_frame(ngx_quic_connection_t *qc, ngx_quic_frame_t *frame) | |
957 { | |
958 ngx_quic_frame_t *f; | |
959 | |
960 if (qc->frames == NULL) { | |
961 qc->frames = frame; | |
962 return; | |
963 } | |
964 | |
965 for (f = qc->frames; f->next; f = f->next) { | |
966 if (f->next->level > frame->level) { | |
967 break; | |
968 } | |
969 } | |
970 | |
971 frame->next = f->next; | |
972 f->next = frame; | |
973 } | |
974 | |
975 | |
976 static ngx_int_t | |
977 ngx_quic_output(ngx_connection_t *c) | |
978 { | |
979 size_t len; | |
980 ngx_uint_t lvl; | |
981 ngx_quic_frame_t *f, *start; | |
982 ngx_quic_connection_t *qc; | |
983 | |
984 qc = c->quic; | |
985 | |
986 if (qc->frames == NULL) { | |
987 return NGX_OK; | |
988 } | |
989 | |
990 lvl = qc->frames->level; | |
991 start = qc->frames; | |
992 f = start; | |
993 | |
994 do { | |
995 len = 0; | |
996 | |
997 do { | |
998 /* process same-level group of frames */ | |
999 | |
1000 len += ngx_quic_frame_len(f);// TODO: handle overflow, max size | |
1001 | |
1002 f = f->next; | |
1003 } while (f && f->level == lvl); | |
1004 | |
1005 | |
1006 if (ngx_quic_frames_send(c, start, f, len) != NGX_OK) { | |
1007 return NGX_ERROR; | |
1008 } | |
1009 | |
1010 if (f == NULL) { | |
1011 break; | |
1012 } | |
1013 | |
1014 lvl = f->level; // TODO: must not decrease (ever, also between calls) | |
1015 start = f; | |
1016 | |
1017 } while (1); | |
1018 | |
1019 qc->frames = NULL; | |
1020 | |
1021 return NGX_OK; | |
1022 } | |
1023 | |
1024 | |
1025 /* pack a group of frames [start; end) into memory p and send as single packet */ | |
1026 ngx_int_t | |
1027 ngx_quic_frames_send(ngx_connection_t *c, ngx_quic_frame_t *start, | |
1028 ngx_quic_frame_t *end, size_t total) | |
1029 { | |
1030 ssize_t len; | |
1031 u_char *p; | |
1032 ngx_str_t out; | |
1033 ngx_quic_frame_t *f; | |
1034 | |
1035 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
1036 "sending frames %p...%p", start, end); | |
1037 | |
1038 p = ngx_pnalloc(c->pool, total); | |
1039 if (p == NULL) { | |
1040 return NGX_ERROR; | |
1041 } | |
1042 | |
1043 out.data = p; | |
1044 | |
1045 for (f = start; f != end; f = f->next) { | |
1046 | |
1047 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "frame: %s", f->info); | |
1048 | |
1049 len = ngx_quic_create_frame(p, p + total, f); | |
1050 if (len == -1) { | |
1051 return NGX_ERROR; | |
1052 } | |
1053 | |
1054 p += len; | |
1055 } | |
1056 | |
1057 out.len = p - out.data; | |
1058 | |
1059 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
1060 "packet ready: %ui bytes at level %d", | |
1061 out.len, start->level); | |
1062 | |
1063 // IOVEC/sendmsg_chain ? | |
1064 if (ngx_quic_send_packet(c, c->quic, start->level, &out) != NGX_OK) { | |
1065 return NGX_ERROR; | |
1066 } | |
1067 | |
1068 return NGX_OK; | |
1069 } | |
1070 | |
1071 | |
1072 static ngx_int_t | |
1073 ngx_quic_send_packet(ngx_connection_t *c, ngx_quic_connection_t *qc, | |
1074 enum ssl_encryption_level_t level, ngx_str_t *payload) | |
1075 { | |
1076 ngx_str_t res; | |
1077 ngx_quic_header_t pkt; | |
1078 | |
1079 pkt.log = c->log; | |
1080 | |
1081 static ngx_str_t initial_token = ngx_null_string; | |
1082 | |
1083 ngx_memzero(&pkt, sizeof(ngx_quic_header_t)); | |
1084 ngx_quic_hexdump0(c->log, "payload", payload->data, payload->len); | |
1085 | |
1086 pkt.level = level; | |
1087 pkt.dcid = qc->dcid; | |
1088 pkt.scid = qc->scid; | |
1089 | |
1090 if (level == ssl_encryption_initial) { | |
1091 pkt.number = &qc->initial_pn; | |
1092 pkt.flags = NGX_QUIC_PKT_INITIAL; | |
1093 pkt.secret = &qc->secrets.server.in; | |
1094 pkt.token = initial_token; | |
1095 | |
1096 } else if (level == ssl_encryption_handshake) { | |
1097 pkt.number = &qc->handshake_pn; | |
1098 pkt.flags = NGX_QUIC_PKT_HANDSHAKE; | |
1099 pkt.secret = &qc->secrets.server.hs; | |
1100 | |
1101 } else { | |
1102 pkt.number = &qc->appdata_pn; | |
1103 pkt.secret = &qc->secrets.server.ad; | |
1104 } | |
1105 | |
1106 if (ngx_quic_encrypt(c->pool, c->ssl->connection, &pkt, payload, &res) | |
1107 != NGX_OK) | |
1108 { | |
1109 return NGX_ERROR; | |
1110 } | |
1111 | |
1112 ngx_quic_hexdump0(c->log, "packet to send", res.data, res.len); | |
1113 | |
1114 c->send(c, res.data, res.len); // TODO: err handling | |
1115 | |
1116 (*pkt.number)++; | |
1117 | |
1118 return NGX_OK; | |
1119 } | |
1120 | |
1121 | |
1122 ngx_connection_t * | |
1123 ngx_quic_create_uni_stream(ngx_connection_t *c) | |
1124 { | |
7695
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Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
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|
1125 ngx_uint_t id; |
cfc429911c0d
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diff
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|
1126 ngx_quic_stream_t *qs; |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
parents:
7691
diff
changeset
|
1127 ngx_quic_connection_t *qc; |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
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|
1128 ngx_quic_stream_node_t *sn; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
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|
1129 |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
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|
1130 qs = c->qs; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1131 qc = qs->parent->quic; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1132 |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1133 /* |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
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|
1134 * A stream ID is a 62-bit integer that is unique for all streams |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1135 * on a connection. |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1136 * |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
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|
1137 * 0x3 | Server-Initiated, Unidirectional |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1138 */ |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
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|
1139 id = (qc->streams.id_counter << 2) | 0x3; |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
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|
1140 |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
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|
1141 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
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|
1142 "creating server uni stream #%ui id %ui", |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
1143 qc->streams.id_counter, id); |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
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|
1144 |
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Implemented creation of server unidirectional streams.
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diff
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|
1145 qc->streams.id_counter++; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
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|
1146 |
cfc429911c0d
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diff
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|
1147 sn = ngx_quic_create_stream(qs->parent, id); |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
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|
1148 if (sn == NULL) { |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
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|
1149 return NULL; |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
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|
1150 } |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
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|
1151 |
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diff
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|
1152 return sn->c; |
7691 | 1153 } |
1154 | |
1155 | |
1156 static void | |
1157 ngx_quic_rbtree_insert_stream(ngx_rbtree_node_t *temp, | |
1158 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) | |
1159 { | |
1160 ngx_rbtree_node_t **p; | |
1161 ngx_quic_stream_node_t *qn, *qnt; | |
1162 | |
1163 for ( ;; ) { | |
1164 | |
1165 if (node->key < temp->key) { | |
1166 | |
1167 p = &temp->left; | |
1168 | |
1169 } else if (node->key > temp->key) { | |
1170 | |
1171 p = &temp->right; | |
1172 | |
1173 } else { /* node->key == temp->key */ | |
1174 | |
1175 qn = (ngx_quic_stream_node_t *) &node->color; | |
1176 qnt = (ngx_quic_stream_node_t *) &temp->color; | |
1177 | |
1178 if (qn->c < qnt->c) { | |
1179 p = &temp->left; | |
1180 } else { | |
1181 p = &temp->right; | |
1182 } | |
1183 } | |
1184 | |
1185 if (*p == sentinel) { | |
1186 break; | |
1187 } | |
1188 | |
1189 temp = *p; | |
1190 } | |
1191 | |
1192 *p = node; | |
1193 node->parent = temp; | |
1194 node->left = sentinel; | |
1195 node->right = sentinel; | |
1196 ngx_rbt_red(node); | |
1197 } | |
1198 | |
1199 | |
1200 static ngx_quic_stream_node_t * | |
1201 ngx_quic_find_stream(ngx_rbtree_t *rbtree, ngx_uint_t key) | |
1202 { | |
1203 ngx_rbtree_node_t *node, *sentinel; | |
1204 | |
1205 node = rbtree->root; | |
1206 sentinel = rbtree->sentinel; | |
1207 | |
1208 while (node != sentinel) { | |
1209 | |
1210 if (key == node->key) { | |
1211 return (ngx_quic_stream_node_t *) node; | |
1212 } | |
1213 | |
1214 node = (key < node->key) ? node->left : node->right; | |
1215 } | |
1216 | |
1217 return NULL; | |
1218 } | |
1219 | |
1220 | |
7695
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diff
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|
1221 static ngx_quic_stream_node_t * |
cfc429911c0d
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diff
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|
1222 ngx_quic_create_stream(ngx_connection_t *c, ngx_uint_t id) |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1223 { |
cfc429911c0d
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diff
changeset
|
1224 ngx_log_t *log; |
cfc429911c0d
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diff
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|
1225 ngx_pool_t *pool; |
cfc429911c0d
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diff
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|
1226 ngx_event_t *rev, *wev; |
7705
5ad7bffd3850
Send a FIN frame when QUIC stream is closed.
Roman Arutyunyan <arut@nginx.com>
parents:
7703
diff
changeset
|
1227 ngx_pool_cleanup_t *cln; |
7695
cfc429911c0d
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diff
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|
1228 ngx_quic_connection_t *qc; |
cfc429911c0d
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diff
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|
1229 ngx_quic_stream_node_t *sn; |
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diff
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|
1230 |
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|
1231 qc = c->quic; |
cfc429911c0d
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|
1232 |
cfc429911c0d
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|
1233 sn = ngx_pcalloc(c->pool, sizeof(ngx_quic_stream_node_t)); |
cfc429911c0d
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diff
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|
1234 if (sn == NULL) { |
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|
1235 return NULL; |
cfc429911c0d
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parents:
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diff
changeset
|
1236 } |
cfc429911c0d
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diff
changeset
|
1237 |
cfc429911c0d
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diff
changeset
|
1238 sn->c = ngx_get_connection(-1, c->log); // TODO: free on connection termination |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1239 if (sn->c == NULL) { |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1240 return NULL; |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
1241 } |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1242 |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1243 pool = ngx_create_pool(NGX_DEFAULT_POOL_SIZE, c->log); |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
1244 if (pool == NULL) { |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1245 /* XXX free connection */ |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1246 // TODO: add pool cleanup handdler |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1247 return NULL; |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
1248 } |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1249 |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
1250 log = ngx_palloc(pool, sizeof(ngx_log_t)); |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
1251 if (log == NULL) { |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1252 /* XXX free pool and connection */ |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1253 return NULL; |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
1254 } |
cfc429911c0d
Implemented creation of server unidirectional streams.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1255 |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1256 *log = *c->log; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1257 pool->log = log; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1258 |
cfc429911c0d
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diff
changeset
|
1259 sn->c->log = log; |
cfc429911c0d
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diff
changeset
|
1260 sn->c->pool = pool; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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changeset
|
1261 |
cfc429911c0d
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diff
changeset
|
1262 sn->c->listening = c->listening; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1263 sn->c->sockaddr = c->sockaddr; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1264 sn->c->local_sockaddr = c->local_sockaddr; |
7700
19bb9edcd8bd
Added copying addr_text to QUIC stream connections.
Roman Arutyunyan <arut@nginx.com>
parents:
7698
diff
changeset
|
1265 sn->c->addr_text = c->addr_text; |
7695
cfc429911c0d
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|
1266 |
cfc429911c0d
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changeset
|
1267 rev = sn->c->read; |
cfc429911c0d
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diff
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|
1268 wev = sn->c->write; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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changeset
|
1269 |
cfc429911c0d
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changeset
|
1270 rev->ready = 1; |
cfc429911c0d
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diff
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|
1271 |
cfc429911c0d
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diff
changeset
|
1272 rev->log = c->log; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1273 wev->log = c->log; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1274 |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1275 sn->c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1); |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1276 |
cfc429911c0d
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diff
changeset
|
1277 sn->node.key =id; |
cfc429911c0d
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diff
changeset
|
1278 sn->b = ngx_create_temp_buf(pool, 16 * 1024); // XXX enough for everyone |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1279 if (sn->b == NULL) { |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1280 return NULL; |
cfc429911c0d
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parents:
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diff
changeset
|
1281 } |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1282 |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1283 ngx_rbtree_insert(&qc->streams.tree, &sn->node); |
cfc429911c0d
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parents:
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diff
changeset
|
1284 |
cfc429911c0d
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diff
changeset
|
1285 sn->s.id = id; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1286 sn->s.unidirectional = (sn->s.id & 0x02) ? 1 : 0; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1287 sn->s.parent = c; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1288 sn->c->qs = &sn->s; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1289 |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1290 sn->c->recv = ngx_quic_stream_recv; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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diff
changeset
|
1291 sn->c->send = ngx_quic_stream_send; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1292 sn->c->send_chain = ngx_quic_stream_send_chain; |
cfc429911c0d
Implemented creation of server unidirectional streams.
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parents:
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diff
changeset
|
1293 |
7705
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Send a FIN frame when QUIC stream is closed.
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1294 cln = ngx_pool_cleanup_add(pool, 0); |
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1295 if (cln == NULL) { |
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1296 ngx_close_connection(sn->c); |
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1297 ngx_destroy_pool(pool); |
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1298 return NULL; |
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1299 } |
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1300 |
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1301 cln->handler = ngx_quic_stream_cleanup_handler; |
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1302 cln->data = sn->c; |
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1303 |
7695
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1304 return sn; |
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|
1305 } |
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1306 |
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1307 |
7691 | 1308 static ssize_t |
1309 ngx_quic_stream_recv(ngx_connection_t *c, u_char *buf, size_t size) | |
1310 { | |
1311 ssize_t len; | |
1312 ngx_buf_t *b; | |
1313 ngx_quic_stream_t *qs; | |
1314 ngx_quic_connection_t *qc; | |
1315 ngx_quic_stream_node_t *sn; | |
1316 | |
1317 qs = c->qs; | |
1318 qc = qs->parent->quic; | |
1319 | |
1320 // XXX: get direct pointer from stream structure? | |
1321 sn = ngx_quic_find_stream(&qc->streams.tree, qs->id); | |
1322 | |
1323 if (sn == NULL) { | |
1324 return NGX_ERROR; | |
1325 } | |
1326 | |
1327 // XXX: how to return EOF? | |
1328 | |
1329 b = sn->b; | |
1330 | |
1331 if (b->last - b->pos == 0) { | |
1332 c->read->ready = 0; | |
1333 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
1334 "quic recv() not ready"); | |
1335 return NGX_AGAIN; // ? | |
1336 } | |
1337 | |
1338 len = ngx_min(b->last - b->pos, (ssize_t) size); | |
1339 | |
1340 ngx_memcpy(buf, b->pos, len); | |
1341 | |
1342 b->pos += len; | |
1343 | |
1344 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
1345 "quic recv: %z of %uz", len, size); | |
1346 | |
1347 return len; | |
1348 } | |
1349 | |
1350 | |
1351 static ssize_t | |
1352 ngx_quic_stream_send(ngx_connection_t *c, u_char *buf, size_t size) | |
1353 { | |
1354 u_char *p; | |
1355 ngx_connection_t *pc; | |
1356 ngx_quic_frame_t *frame; | |
1357 ngx_quic_stream_t *qs; | |
1358 ngx_quic_connection_t *qc; | |
1359 ngx_quic_stream_node_t *sn; | |
1360 | |
1361 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "quic send: %uz", size); | |
1362 | |
1363 qs = c->qs; | |
1364 pc = qs->parent; | |
1365 qc = pc->quic; | |
1366 | |
1367 // XXX: get direct pointer from stream structure? | |
1368 sn = ngx_quic_find_stream(&qc->streams.tree, qs->id); | |
1369 | |
1370 if (sn == NULL) { | |
1371 return NGX_ERROR; | |
1372 } | |
1373 | |
1374 frame = ngx_pcalloc(pc->pool, sizeof(ngx_quic_frame_t)); | |
1375 if (frame == NULL) { | |
1376 return 0; | |
1377 } | |
1378 | |
1379 p = ngx_pnalloc(pc->pool, size); | |
1380 if (p == NULL) { | |
1381 return 0; | |
1382 } | |
1383 | |
1384 ngx_memcpy(p, buf, size); | |
1385 | |
1386 frame->level = ssl_encryption_application; | |
1387 frame->type = NGX_QUIC_FT_STREAM6; /* OFF=1 LEN=1 FIN=0 */ | |
1388 frame->u.stream.off = 1; | |
1389 frame->u.stream.len = 1; | |
1390 frame->u.stream.fin = 0; | |
1391 | |
1392 frame->u.stream.type = frame->type; | |
1393 frame->u.stream.stream_id = qs->id; | |
1394 frame->u.stream.offset = c->sent; | |
1395 frame->u.stream.length = size; | |
1396 frame->u.stream.data = p; | |
1397 | |
1398 c->sent += size; | |
1399 | |
1400 ngx_sprintf(frame->info, "stream %xi len=%ui level=%d", | |
1401 qs->id, size, frame->level); | |
1402 | |
1403 ngx_quic_queue_frame(qc, frame); | |
1404 | |
1405 return size; | |
1406 } | |
1407 | |
1408 | |
7705
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1409 static void |
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1410 ngx_quic_stream_cleanup_handler(void *data) |
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1411 { |
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1412 ngx_connection_t *c = data; |
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1413 |
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1414 ngx_connection_t *pc; |
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1415 ngx_quic_frame_t *frame; |
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1416 ngx_quic_stream_t *qs; |
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1417 ngx_quic_connection_t *qc; |
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1418 ngx_quic_stream_node_t *sn; |
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1419 |
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1420 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "quic send fin"); |
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1421 |
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1422 qs = c->qs; |
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1423 pc = qs->parent; |
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1424 qc = pc->quic; |
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1425 |
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1426 if ((qs->id & 0x03) == 0x02) { |
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1427 /* do not send fin for client unidirectional streams */ |
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1428 return; |
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1429 } |
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1430 |
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1431 // XXX: get direct pointer from stream structure? |
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1432 sn = ngx_quic_find_stream(&qc->streams.tree, qs->id); |
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1433 |
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1434 if (sn == NULL) { |
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1435 return; |
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1436 } |
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1437 |
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1438 frame = ngx_pcalloc(pc->pool, sizeof(ngx_quic_frame_t)); |
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1439 if (frame == NULL) { |
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1440 return; |
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1441 } |
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1442 |
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1443 frame->level = ssl_encryption_application; |
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1444 frame->type = NGX_QUIC_FT_STREAM7; /* OFF=1 LEN=1 FIN=1 */ |
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1445 frame->u.stream.off = 1; |
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1446 frame->u.stream.len = 1; |
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1447 frame->u.stream.fin = 1; |
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1448 |
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1449 frame->u.stream.type = frame->type; |
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1450 frame->u.stream.stream_id = qs->id; |
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1451 frame->u.stream.offset = c->sent; |
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1452 frame->u.stream.length = 0; |
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1453 frame->u.stream.data = NULL; |
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1454 |
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1455 ngx_sprintf(frame->info, "stream %xi fin=1 level=%d", qs->id, frame->level); |
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1456 |
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1457 ngx_quic_queue_frame(qc, frame); |
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1458 } |
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1459 |
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1460 |
7691 | 1461 static ngx_chain_t * |
1462 ngx_quic_stream_send_chain(ngx_connection_t *c, ngx_chain_t *in, | |
1463 off_t limit) | |
1464 { | |
1465 size_t len; | |
1466 ssize_t n; | |
1467 ngx_buf_t *b; | |
1468 | |
1469 for ( /* void */; in; in = in->next) { | |
1470 b = in->buf; | |
1471 | |
1472 if (!ngx_buf_in_memory(b)) { | |
1473 continue; | |
1474 } | |
1475 | |
1476 if (ngx_buf_size(b) == 0) { | |
1477 continue; | |
1478 } | |
1479 | |
1480 len = b->last - b->pos; | |
1481 | |
1482 n = ngx_quic_stream_send(c, b->pos, len); | |
1483 | |
1484 if (n == NGX_ERROR) { | |
1485 return NGX_CHAIN_ERROR; | |
1486 } | |
1487 | |
1488 if (n == NGX_AGAIN) { | |
1489 return in; | |
1490 } | |
1491 | |
1492 if (n != (ssize_t) len) { | |
1493 b->pos += n; | |
1494 return in; | |
1495 } | |
1496 } | |
1497 | |
1498 return NULL; | |
1499 } |