Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3_module.c @ 9058:b0c2234aaa9f quic
QUIC: application init() callback.
It's called after handshake completion or prior to the first early data stream
creation. The callback should initialize application-level data before
creating streams.
HTTP/3 callback implementation sets keepalive timer and sends SETTINGS.
Also, this allows to limit max handshake time in ngx_http_v3_init_stream().
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Wed, 30 Nov 2022 12:51:15 +0400 |
parents | 1192923be0aa |
children | c851a2ed5ce8 |
rev | line source |
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8215 | 1 |
2 /* | |
3 * Copyright (C) Nginx, Inc. | |
4 * Copyright (C) Roman Arutyunyan | |
5 */ | |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_http.h> | |
11 | |
12 | |
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13 static ngx_int_t ngx_http_v3_variable(ngx_http_request_t *r, |
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14 ngx_http_variable_value_t *v, uintptr_t data); |
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15 static ngx_int_t ngx_http_v3_add_variables(ngx_conf_t *cf); |
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16 static void *ngx_http_v3_create_srv_conf(ngx_conf_t *cf); |
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17 static char *ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent, |
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18 void *child); |
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19 static char *ngx_http_quic_mtu(ngx_conf_t *cf, void *post, |
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20 void *data); |
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21 static char *ngx_http_quic_host_key(ngx_conf_t *cf, ngx_command_t *cmd, |
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22 void *conf); |
8497 | 23 static void *ngx_http_v3_create_loc_conf(ngx_conf_t *cf); |
24 static char *ngx_http_v3_merge_loc_conf(ngx_conf_t *cf, void *parent, | |
25 void *child); | |
26 static char *ngx_http_v3_push(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
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27 |
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28 |
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29 static ngx_conf_post_t ngx_http_quic_mtu_post = |
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30 { ngx_http_quic_mtu }; |
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31 |
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32 |
8215 | 33 static ngx_command_t ngx_http_v3_commands[] = { |
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34 |
8497 | 35 { ngx_string("http3_max_concurrent_pushes"), |
36 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
37 ngx_conf_set_num_slot, | |
38 NGX_HTTP_SRV_CONF_OFFSET, | |
39 offsetof(ngx_http_v3_srv_conf_t, max_concurrent_pushes), | |
40 NULL }, | |
41 | |
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42 { ngx_string("http3_max_concurrent_streams"), |
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43 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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44 ngx_conf_set_num_slot, |
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45 NGX_HTTP_SRV_CONF_OFFSET, |
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46 offsetof(ngx_http_v3_srv_conf_t, max_concurrent_streams), |
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47 NULL }, |
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48 |
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49 #if (NGX_HTTP_V3_HQ) |
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50 { ngx_string("http3_hq"), |
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51 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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52 ngx_conf_set_flag_slot, |
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53 NGX_HTTP_SRV_CONF_OFFSET, |
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54 offsetof(ngx_http_v3_srv_conf_t, hq), |
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55 NULL }, |
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56 #endif |
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57 |
8497 | 58 { ngx_string("http3_push"), |
59 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
60 ngx_http_v3_push, | |
61 NGX_HTTP_LOC_CONF_OFFSET, | |
62 0, | |
63 NULL }, | |
64 | |
65 { ngx_string("http3_push_preload"), | |
66 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
67 ngx_conf_set_flag_slot, | |
68 NGX_HTTP_LOC_CONF_OFFSET, | |
69 offsetof(ngx_http_v3_loc_conf_t, push_preload), | |
70 NULL }, | |
71 | |
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72 { ngx_string("http3_stream_buffer_size"), |
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73 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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74 ngx_conf_set_size_slot, |
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75 NGX_HTTP_SRV_CONF_OFFSET, |
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76 offsetof(ngx_http_v3_srv_conf_t, quic.stream_buffer_size), |
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77 NULL }, |
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78 |
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79 { ngx_string("quic_retry"), |
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80 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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81 ngx_conf_set_flag_slot, |
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82 NGX_HTTP_SRV_CONF_OFFSET, |
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83 offsetof(ngx_http_v3_srv_conf_t, quic.retry), |
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84 NULL }, |
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85 |
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86 { ngx_string("quic_gso"), |
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87 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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88 ngx_conf_set_flag_slot, |
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89 NGX_HTTP_SRV_CONF_OFFSET, |
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90 offsetof(ngx_http_v3_srv_conf_t, quic.gso_enabled), |
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91 NULL }, |
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92 |
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93 { ngx_string("quic_mtu"), |
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94 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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95 ngx_conf_set_size_slot, |
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96 NGX_HTTP_SRV_CONF_OFFSET, |
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97 offsetof(ngx_http_v3_srv_conf_t, quic.mtu), |
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98 &ngx_http_quic_mtu_post }, |
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99 |
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100 { ngx_string("quic_host_key"), |
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101 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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102 ngx_http_quic_host_key, |
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103 NGX_HTTP_SRV_CONF_OFFSET, |
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104 0, |
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105 NULL }, |
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106 |
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107 { ngx_string("quic_active_connection_id_limit"), |
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108 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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109 ngx_conf_set_num_slot, |
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110 NGX_HTTP_SRV_CONF_OFFSET, |
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111 offsetof(ngx_http_v3_srv_conf_t, quic.active_connection_id_limit), |
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112 NULL }, |
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113 |
8215 | 114 ngx_null_command |
115 }; | |
116 | |
117 | |
118 static ngx_http_module_t ngx_http_v3_module_ctx = { | |
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119 ngx_http_v3_add_variables, /* preconfiguration */ |
8215 | 120 NULL, /* postconfiguration */ |
121 | |
122 NULL, /* create main configuration */ | |
123 NULL, /* init main configuration */ | |
124 | |
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125 ngx_http_v3_create_srv_conf, /* create server configuration */ |
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126 ngx_http_v3_merge_srv_conf, /* merge server configuration */ |
8215 | 127 |
8497 | 128 ngx_http_v3_create_loc_conf, /* create location configuration */ |
129 ngx_http_v3_merge_loc_conf /* merge location configuration */ | |
8215 | 130 }; |
131 | |
132 | |
133 ngx_module_t ngx_http_v3_module = { | |
134 NGX_MODULE_V1, | |
135 &ngx_http_v3_module_ctx, /* module context */ | |
136 ngx_http_v3_commands, /* module directives */ | |
137 NGX_HTTP_MODULE, /* module type */ | |
138 NULL, /* init master */ | |
139 NULL, /* init module */ | |
140 NULL, /* init process */ | |
141 NULL, /* init thread */ | |
142 NULL, /* exit thread */ | |
143 NULL, /* exit process */ | |
144 NULL, /* exit master */ | |
145 NGX_MODULE_V1_PADDING | |
146 }; | |
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147 |
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148 |
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149 static ngx_http_variable_t ngx_http_v3_vars[] = { |
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150 |
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151 { ngx_string("http3"), NULL, ngx_http_v3_variable, 0, 0, 0 }, |
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152 |
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153 ngx_http_null_variable |
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154 }; |
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155 |
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156 static ngx_str_t ngx_http_quic_salt = ngx_string("ngx_quic"); |
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157 |
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158 |
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159 static ngx_int_t |
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160 ngx_http_v3_variable(ngx_http_request_t *r, |
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161 ngx_http_variable_value_t *v, uintptr_t data) |
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162 { |
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163 if (r->connection->quic) { |
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164 #if (NGX_HTTP_V3_HQ) |
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165 |
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166 ngx_http_v3_srv_conf_t *h3scf; |
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167 |
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168 h3scf = ngx_http_get_module_srv_conf(r, ngx_http_v3_module); |
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169 |
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170 if (h3scf->hq) { |
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171 v->len = sizeof("hq") - 1; |
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172 v->valid = 1; |
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173 v->no_cacheable = 0; |
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174 v->not_found = 0; |
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175 v->data = (u_char *) "hq"; |
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176 |
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177 return NGX_OK; |
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178 } |
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179 |
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180 #endif |
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181 |
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182 v->len = sizeof("h3") - 1; |
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183 v->valid = 1; |
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184 v->no_cacheable = 0; |
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185 v->not_found = 0; |
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186 v->data = (u_char *) "h3"; |
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187 |
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188 return NGX_OK; |
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189 } |
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190 |
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191 *v = ngx_http_variable_null_value; |
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192 |
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193 return NGX_OK; |
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194 } |
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195 |
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196 |
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197 static ngx_int_t |
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198 ngx_http_v3_add_variables(ngx_conf_t *cf) |
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199 { |
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200 ngx_http_variable_t *var, *v; |
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201 |
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202 for (v = ngx_http_v3_vars; v->name.len; v++) { |
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203 var = ngx_http_add_variable(cf, &v->name, v->flags); |
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204 if (var == NULL) { |
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205 return NGX_ERROR; |
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206 } |
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207 |
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208 var->get_handler = v->get_handler; |
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209 var->data = v->data; |
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210 } |
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211 |
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212 return NGX_OK; |
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213 } |
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214 |
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215 |
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216 static void * |
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217 ngx_http_v3_create_srv_conf(ngx_conf_t *cf) |
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218 { |
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219 ngx_http_v3_srv_conf_t *h3scf; |
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220 |
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221 h3scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_srv_conf_t)); |
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222 if (h3scf == NULL) { |
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223 return NULL; |
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224 } |
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225 |
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226 /* |
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227 * set by ngx_pcalloc(): |
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228 * |
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229 * h3scf->quic.host_key = { 0, NULL } |
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230 * h3scf->quic.stream_reject_code_uni = 0; |
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231 * h3scf->quic.disable_active_migration = 0; |
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232 * h3scf->quic.timeout = 0; |
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233 * h3scf->max_blocked_streams = 0; |
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234 */ |
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235 h3scf->max_table_capacity = NGX_HTTP_V3_MAX_TABLE_CAPACITY; |
8497 | 236 h3scf->max_concurrent_pushes = NGX_CONF_UNSET_UINT; |
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237 h3scf->max_concurrent_streams = NGX_CONF_UNSET_UINT; |
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238 #if (NGX_HTTP_V3_HQ) |
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239 h3scf->hq = NGX_CONF_UNSET; |
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240 #endif |
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241 |
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242 h3scf->quic.mtu = NGX_CONF_UNSET_SIZE; |
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243 h3scf->quic.stream_buffer_size = NGX_CONF_UNSET_SIZE; |
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244 h3scf->quic.max_concurrent_streams_bidi = NGX_CONF_UNSET_UINT; |
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245 h3scf->quic.max_concurrent_streams_uni = NGX_HTTP_V3_MAX_UNI_STREAMS; |
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246 h3scf->quic.retry = NGX_CONF_UNSET; |
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247 h3scf->quic.gso_enabled = NGX_CONF_UNSET; |
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248 h3scf->quic.stream_close_code = NGX_HTTP_V3_ERR_NO_ERROR; |
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249 h3scf->quic.stream_reject_code_bidi = NGX_HTTP_V3_ERR_REQUEST_REJECTED; |
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250 h3scf->quic.active_connection_id_limit = NGX_CONF_UNSET_UINT; |
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251 |
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252 h3scf->quic.init = ngx_http_v3_init; |
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253 h3scf->quic.shutdown = ngx_http_v3_shutdown; |
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254 |
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255 return h3scf; |
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256 } |
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257 |
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258 |
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259 static char * |
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260 ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
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261 { |
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262 ngx_http_v3_srv_conf_t *prev = parent; |
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263 ngx_http_v3_srv_conf_t *conf = child; |
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264 |
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265 ngx_http_ssl_srv_conf_t *sscf; |
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266 |
8497 | 267 ngx_conf_merge_uint_value(conf->max_concurrent_pushes, |
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268 prev->max_concurrent_pushes, 10); |
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270 ngx_conf_merge_uint_value(conf->max_concurrent_streams, |
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271 prev->max_concurrent_streams, 128); |
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272 |
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273 conf->max_blocked_streams = conf->max_concurrent_streams; |
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274 |
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275 #if (NGX_HTTP_V3_HQ) |
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276 ngx_conf_merge_value(conf->hq, prev->hq, 0); |
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277 #endif |
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278 |
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279 |
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280 ngx_conf_merge_size_value(conf->quic.mtu, prev->quic.mtu, |
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281 NGX_QUIC_MAX_UDP_PAYLOAD_SIZE); |
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282 |
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283 ngx_conf_merge_size_value(conf->quic.stream_buffer_size, |
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284 prev->quic.stream_buffer_size, |
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285 65536); |
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286 |
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287 conf->quic.max_concurrent_streams_bidi = conf->max_concurrent_streams; |
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288 |
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289 ngx_conf_merge_value(conf->quic.retry, prev->quic.retry, 0); |
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290 ngx_conf_merge_value(conf->quic.gso_enabled, prev->quic.gso_enabled, 0); |
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291 |
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292 ngx_conf_merge_str_value(conf->quic.host_key, prev->quic.host_key, ""); |
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293 |
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294 ngx_conf_merge_uint_value(conf->quic.active_connection_id_limit, |
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295 prev->quic.active_connection_id_limit, |
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296 2); |
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297 |
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298 if (conf->quic.host_key.len == 0) { |
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299 |
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300 conf->quic.host_key.len = NGX_QUIC_DEFAULT_HOST_KEY_LEN; |
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301 conf->quic.host_key.data = ngx_palloc(cf->pool, |
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302 conf->quic.host_key.len); |
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303 if (conf->quic.host_key.data == NULL) { |
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304 return NGX_CONF_ERROR; |
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305 } |
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306 |
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307 if (RAND_bytes(conf->quic.host_key.data, NGX_QUIC_DEFAULT_HOST_KEY_LEN) |
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308 <= 0) |
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309 { |
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310 return NGX_CONF_ERROR; |
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311 } |
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312 } |
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313 |
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314 if (ngx_quic_derive_key(cf->log, "av_token_key", |
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315 &conf->quic.host_key, &ngx_http_quic_salt, |
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316 conf->quic.av_token_key, NGX_QUIC_AV_KEY_LEN) |
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317 != NGX_OK) |
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318 { |
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319 return NGX_CONF_ERROR; |
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320 } |
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321 |
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322 if (ngx_quic_derive_key(cf->log, "sr_token_key", |
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323 &conf->quic.host_key, &ngx_http_quic_salt, |
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324 conf->quic.sr_token_key, NGX_QUIC_SR_KEY_LEN) |
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325 != NGX_OK) |
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326 { |
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327 return NGX_CONF_ERROR; |
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328 } |
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329 |
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330 sscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_ssl_module); |
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331 conf->quic.ssl = &sscf->ssl; |
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332 |
8497 | 333 return NGX_CONF_OK; |
334 } | |
335 | |
336 | |
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337 static char * |
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338 ngx_http_quic_mtu(ngx_conf_t *cf, void *post, void *data) |
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339 { |
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340 size_t *sp = data; |
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341 |
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342 if (*sp < NGX_QUIC_MIN_INITIAL_SIZE |
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343 || *sp > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE) |
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344 { |
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345 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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346 "\"quic_mtu\" must be between %d and %d", |
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347 NGX_QUIC_MIN_INITIAL_SIZE, |
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348 NGX_QUIC_MAX_UDP_PAYLOAD_SIZE); |
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349 |
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350 return NGX_CONF_ERROR; |
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351 } |
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352 |
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353 return NGX_CONF_OK; |
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354 } |
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355 |
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356 |
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357 static char * |
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358 ngx_http_quic_host_key(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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359 { |
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360 ngx_http_v3_srv_conf_t *h3scf = conf; |
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361 |
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362 u_char *buf; |
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363 size_t size; |
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364 ssize_t n; |
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365 ngx_str_t *value; |
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366 ngx_file_t file; |
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367 ngx_file_info_t fi; |
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368 ngx_quic_conf_t *qcf; |
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369 |
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370 qcf = &h3scf->quic; |
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371 |
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372 if (qcf->host_key.len) { |
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373 return "is duplicate"; |
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374 } |
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375 |
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376 buf = NULL; |
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377 #if (NGX_SUPPRESS_WARN) |
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378 size = 0; |
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379 #endif |
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380 |
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381 value = cf->args->elts; |
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382 |
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383 if (ngx_conf_full_name(cf->cycle, &value[1], 1) != NGX_OK) { |
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384 return NGX_CONF_ERROR; |
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385 } |
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386 |
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387 ngx_memzero(&file, sizeof(ngx_file_t)); |
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388 file.name = value[1]; |
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389 file.log = cf->log; |
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390 |
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391 file.fd = ngx_open_file(file.name.data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0); |
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392 |
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393 if (file.fd == NGX_INVALID_FILE) { |
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394 ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, |
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395 ngx_open_file_n " \"%V\" failed", &file.name); |
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396 return NGX_CONF_ERROR; |
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397 } |
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398 |
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399 if (ngx_fd_info(file.fd, &fi) == NGX_FILE_ERROR) { |
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400 ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno, |
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401 ngx_fd_info_n " \"%V\" failed", &file.name); |
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402 goto failed; |
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403 } |
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404 |
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405 size = ngx_file_size(&fi); |
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406 |
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407 if (size == 0) { |
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408 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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409 "\"%V\" zero key size", &file.name); |
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410 goto failed; |
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411 } |
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412 |
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413 buf = ngx_pnalloc(cf->pool, size); |
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414 if (buf == NULL) { |
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415 goto failed; |
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416 } |
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417 |
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418 n = ngx_read_file(&file, buf, size, 0); |
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419 |
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420 if (n == NGX_ERROR) { |
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421 ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno, |
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422 ngx_read_file_n " \"%V\" failed", &file.name); |
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423 goto failed; |
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424 } |
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425 |
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426 if ((size_t) n != size) { |
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427 ngx_conf_log_error(NGX_LOG_CRIT, cf, 0, |
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428 ngx_read_file_n " \"%V\" returned only " |
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429 "%z bytes instead of %uz", &file.name, n, size); |
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430 goto failed; |
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431 } |
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432 |
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433 qcf->host_key.data = buf; |
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434 qcf->host_key.len = n; |
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435 |
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436 if (ngx_close_file(file.fd) == NGX_FILE_ERROR) { |
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437 ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno, |
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438 ngx_close_file_n " \"%V\" failed", &file.name); |
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439 } |
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440 |
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441 return NGX_CONF_OK; |
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442 |
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443 failed: |
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444 |
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445 if (ngx_close_file(file.fd) == NGX_FILE_ERROR) { |
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446 ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno, |
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447 ngx_close_file_n " \"%V\" failed", &file.name); |
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448 } |
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449 |
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450 if (buf) { |
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451 ngx_explicit_memzero(buf, size); |
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452 } |
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453 |
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454 return NGX_CONF_ERROR; |
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455 } |
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456 |
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457 |
8497 | 458 static void * |
459 ngx_http_v3_create_loc_conf(ngx_conf_t *cf) | |
460 { | |
461 ngx_http_v3_loc_conf_t *h3lcf; | |
462 | |
463 h3lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_loc_conf_t)); | |
464 if (h3lcf == NULL) { | |
465 return NULL; | |
466 } | |
467 | |
468 /* | |
469 * set by ngx_pcalloc(): | |
470 * | |
471 * h3lcf->pushes = NULL; | |
472 */ | |
473 | |
474 h3lcf->push_preload = NGX_CONF_UNSET; | |
475 h3lcf->push = NGX_CONF_UNSET; | |
476 | |
477 return h3lcf; | |
478 } | |
479 | |
480 | |
481 static char * | |
482 ngx_http_v3_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
483 { | |
484 ngx_http_v3_loc_conf_t *prev = parent; | |
485 ngx_http_v3_loc_conf_t *conf = child; | |
486 | |
487 ngx_conf_merge_value(conf->push, prev->push, 1); | |
488 | |
489 if (conf->push && conf->pushes == NULL) { | |
490 conf->pushes = prev->pushes; | |
491 } | |
492 | |
493 ngx_conf_merge_value(conf->push_preload, prev->push_preload, 0); | |
494 | |
8353
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495 return NGX_CONF_OK; |
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496 } |
8497 | 497 |
498 | |
499 static char * | |
500 ngx_http_v3_push(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
501 { | |
502 ngx_http_v3_loc_conf_t *h3lcf = conf; | |
503 | |
504 ngx_str_t *value; | |
505 ngx_http_complex_value_t *cv; | |
506 ngx_http_compile_complex_value_t ccv; | |
507 | |
508 value = cf->args->elts; | |
509 | |
510 if (ngx_strcmp(value[1].data, "off") == 0) { | |
511 | |
512 if (h3lcf->pushes) { | |
513 return "\"off\" parameter cannot be used with URI"; | |
514 } | |
515 | |
516 if (h3lcf->push == 0) { | |
517 return "is duplicate"; | |
518 } | |
519 | |
520 h3lcf->push = 0; | |
521 return NGX_CONF_OK; | |
522 } | |
523 | |
524 if (h3lcf->push == 0) { | |
525 return "URI cannot be used with \"off\" parameter"; | |
526 } | |
527 | |
528 h3lcf->push = 1; | |
529 | |
530 if (h3lcf->pushes == NULL) { | |
531 h3lcf->pushes = ngx_array_create(cf->pool, 1, | |
532 sizeof(ngx_http_complex_value_t)); | |
533 if (h3lcf->pushes == NULL) { | |
534 return NGX_CONF_ERROR; | |
535 } | |
536 } | |
537 | |
538 cv = ngx_array_push(h3lcf->pushes); | |
539 if (cv == NULL) { | |
540 return NGX_CONF_ERROR; | |
541 } | |
542 | |
543 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); | |
544 | |
545 ccv.cf = cf; | |
546 ccv.value = &value[1]; | |
547 ccv.complex_value = cv; | |
548 | |
549 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { | |
550 return NGX_CONF_ERROR; | |
551 } | |
552 | |
553 return NGX_CONF_OK; | |
554 } |