Mercurial > hg > nginx
annotate src/http/modules/ngx_http_ssl_module.c @ 599:869b6444d234 release-0.3.21
nginx-0.3.21-RELEASE import
*) Feature: the ngx_http_perl_module.
*) Change: the "valid_referers" directive allows the referreres without
URI part.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 16 Jan 2006 14:56:53 +0000 |
| parents | 58475592100c |
| children | 3f8a2132b93d |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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| 573 | 11 |
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12 #define NGX_DEFLAUT_CERTIFICATE "cert.pem" |
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13 #define NGX_DEFLAUT_CERTIFICATE_KEY "cert.pem" |
| 547 | 14 #define NGX_DEFLAUT_CIPHERS "ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP" |
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15 |
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16 |
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17 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf); |
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18 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, |
| 501 | 19 void *parent, void *child); |
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20 |
| 563 | 21 #if !defined (SSL_OP_CIPHER_SERVER_PREFERENCE) |
| 22 | |
| 23 static char *ngx_http_ssl_nosupported(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 24 void *conf); | |
| 25 | |
| 26 static char ngx_http_ssl_openssl097[] = "OpenSSL 0.9.7 and higher"; | |
| 27 | |
| 28 #endif | |
| 29 | |
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30 |
| 547 | 31 static ngx_conf_bitmask_t ngx_http_ssl_protocols[] = { |
| 32 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 33 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 34 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 35 { ngx_null_string, 0 } | |
| 36 }; | |
| 37 | |
| 38 | |
| 563 | 39 |
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40 static ngx_command_t ngx_http_ssl_commands[] = { |
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41 |
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42 { ngx_string("ssl"), |
| 599 | 43 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, |
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44 ngx_conf_set_flag_slot, |
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45 NGX_HTTP_SRV_CONF_OFFSET, |
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46 offsetof(ngx_http_ssl_srv_conf_t, enable), |
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47 NULL }, |
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48 |
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49 { ngx_string("ssl_certificate"), |
| 599 | 50 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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51 ngx_conf_set_str_slot, |
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52 NGX_HTTP_SRV_CONF_OFFSET, |
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53 offsetof(ngx_http_ssl_srv_conf_t, certificate), |
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54 NULL }, |
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55 |
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56 { ngx_string("ssl_certificate_key"), |
| 599 | 57 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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58 ngx_conf_set_str_slot, |
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59 NGX_HTTP_SRV_CONF_OFFSET, |
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60 offsetof(ngx_http_ssl_srv_conf_t, certificate_key), |
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61 NULL }, |
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62 |
| 547 | 63 { ngx_string("ssl_protocols"), |
| 563 | 64 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, |
| 547 | 65 ngx_conf_set_bitmask_slot, |
| 66 NGX_HTTP_SRV_CONF_OFFSET, | |
| 67 offsetof(ngx_http_ssl_srv_conf_t, protocols), | |
| 68 &ngx_http_ssl_protocols }, | |
| 69 | |
| 479 | 70 { ngx_string("ssl_ciphers"), |
| 563 | 71 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
| 479 | 72 ngx_conf_set_str_slot, |
| 73 NGX_HTTP_SRV_CONF_OFFSET, | |
| 74 offsetof(ngx_http_ssl_srv_conf_t, ciphers), | |
| 75 NULL }, | |
| 76 | |
| 547 | 77 { ngx_string("ssl_prefer_server_ciphers"), |
| 78 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, | |
| 563 | 79 #ifdef SSL_OP_CIPHER_SERVER_PREFERENCE |
| 547 | 80 ngx_conf_set_flag_slot, |
| 81 NGX_HTTP_SRV_CONF_OFFSET, | |
| 82 offsetof(ngx_http_ssl_srv_conf_t, prefer_server_ciphers), | |
| 83 NULL }, | |
| 563 | 84 #else |
| 85 ngx_http_ssl_nosupported, 0, 0, ngx_http_ssl_openssl097 }, | |
| 86 #endif | |
| 547 | 87 |
| 573 | 88 { ngx_string("ssl_session_timeout"), |
| 89 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, | |
| 90 ngx_conf_set_sec_slot, | |
| 91 NGX_HTTP_SRV_CONF_OFFSET, | |
| 92 offsetof(ngx_http_ssl_srv_conf_t, session_timeout), | |
| 93 NULL }, | |
| 94 | |
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95 ngx_null_command |
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96 }; |
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97 |
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98 |
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99 static ngx_http_module_t ngx_http_ssl_module_ctx = { |
| 509 | 100 NULL, /* preconfiguration */ |
| 101 NULL, /* postconfiguration */ | |
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102 |
| 541 | 103 NULL, /* create main configuration */ |
| 104 NULL, /* init main configuration */ | |
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105 |
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106 ngx_http_ssl_create_srv_conf, /* create server configuration */ |
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107 ngx_http_ssl_merge_srv_conf, /* merge server configuration */ |
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108 |
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109 NULL, /* create location configuration */ |
| 485 | 110 NULL /* merge location configuration */ |
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111 }; |
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112 |
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113 |
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114 ngx_module_t ngx_http_ssl_module = { |
| 509 | 115 NGX_MODULE_V1, |
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116 &ngx_http_ssl_module_ctx, /* module context */ |
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117 ngx_http_ssl_commands, /* module directives */ |
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118 NGX_HTTP_MODULE, /* module type */ |
| 541 | 119 NULL, /* init master */ |
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120 NULL, /* init module */ |
| 541 | 121 NULL, /* init process */ |
| 122 NULL, /* init thread */ | |
| 123 NULL, /* exit thread */ | |
| 124 NULL, /* exit process */ | |
| 125 NULL, /* exit master */ | |
| 126 NGX_MODULE_V1_PADDING | |
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127 }; |
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128 |
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129 |
| 543 | 130 static u_char ngx_http_session_id_ctx[] = "HTTP"; |
| 131 | |
| 132 | |
| 501 | 133 static void * |
| 134 ngx_http_ssl_create_srv_conf(ngx_conf_t *cf) | |
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135 { |
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136 ngx_http_ssl_srv_conf_t *scf; |
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137 |
| 501 | 138 scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t)); |
| 139 if (scf == NULL) { | |
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140 return NGX_CONF_ERROR; |
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141 } |
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142 |
| 479 | 143 /* |
| 144 * set by ngx_pcalloc(): | |
| 145 * | |
| 547 | 146 * scf->protocols = 0; |
| 147 | |
| 479 | 148 * scf->certificate.len = 0; |
| 149 * scf->certificate.data = NULL; | |
| 150 * scf->certificate_key.len = 0; | |
| 151 * scf->certificate_key.data = NULL; | |
| 152 * scf->ciphers.len = 0; | |
| 153 * scf->ciphers.data = NULL; | |
| 154 */ | |
| 155 | |
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156 scf->enable = NGX_CONF_UNSET; |
| 573 | 157 scf->session_timeout = NGX_CONF_UNSET; |
| 547 | 158 scf->prefer_server_ciphers = NGX_CONF_UNSET; |
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159 |
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160 return scf; |
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161 } |
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162 |
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163 |
| 501 | 164 static char * |
| 165 ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
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166 { |
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167 ngx_http_ssl_srv_conf_t *prev = parent; |
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168 ngx_http_ssl_srv_conf_t *conf = child; |
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169 |
| 563 | 170 ngx_pool_cleanup_t *cln; |
| 171 | |
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172 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
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173 |
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174 if (conf->enable == 0) { |
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175 return NGX_CONF_OK; |
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176 } |
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177 |
| 573 | 178 ngx_conf_merge_value(conf->session_timeout, |
| 179 prev->session_timeout, 300); | |
| 180 | |
| 547 | 181 ngx_conf_merge_value(conf->prefer_server_ciphers, |
| 182 prev->prefer_server_ciphers, 0); | |
| 183 | |
| 184 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, | |
| 185 (NGX_CONF_BITMASK_SET | |
| 186 |NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1)); | |
| 187 | |
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188 ngx_conf_merge_str_value(conf->certificate, prev->certificate, |
| 547 | 189 NGX_DEFLAUT_CERTIFICATE); |
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190 |
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191 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, |
| 547 | 192 NGX_DEFLAUT_CERTIFICATE_KEY); |
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193 |
| 547 | 194 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFLAUT_CIPHERS); |
| 479 | 195 |
| 196 | |
| 547 | 197 conf->ssl.log = cf->log; |
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198 |
| 547 | 199 if (ngx_ssl_create(&conf->ssl, conf->protocols) != NGX_OK) { |
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200 return NGX_CONF_ERROR; |
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201 } |
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202 |
| 563 | 203 cln = ngx_pool_cleanup_add(cf->pool, 0); |
| 204 if (cln == NULL) { | |
| 509 | 205 return NGX_CONF_ERROR; |
| 206 } | |
| 207 | |
| 563 | 208 cln->handler = ngx_ssl_cleanup_ctx; |
| 209 cln->data = &conf->ssl; | |
| 210 | |
| 211 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate, | |
| 212 &conf->certificate_key) != NGX_OK) | |
| 529 | 213 { |
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214 return NGX_CONF_ERROR; |
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215 } |
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216 |
| 547 | 217 if (SSL_CTX_set_cipher_list(conf->ssl.ctx, |
| 563 | 218 (const char *) conf->ciphers.data) |
| 219 == 0) | |
| 529 | 220 { |
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221 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, |
| 547 | 222 "SSL_CTX_set_cipher_list(\"%V\") failed", |
| 223 &conf->ciphers); | |
| 224 } | |
| 225 | |
| 563 | 226 #ifdef SSL_OP_CIPHER_SERVER_PREFERENCE |
| 227 | |
| 547 | 228 if (conf->prefer_server_ciphers) { |
| 229 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); | |
| 230 } | |
| 231 | |
| 563 | 232 #endif |
| 233 | |
| 547 | 234 /* a temporary 512-bit RSA key is required for export versions of MSIE */ |
| 235 if (ngx_ssl_generate_rsa512_key(&conf->ssl) != NGX_OK) { | |
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236 return NGX_CONF_ERROR; |
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237 } |
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238 |
| 547 | 239 SSL_CTX_set_session_cache_mode(conf->ssl.ctx, SSL_SESS_CACHE_SERVER); |
| 543 | 240 |
| 547 | 241 SSL_CTX_set_session_id_context(conf->ssl.ctx, ngx_http_session_id_ctx, |
| 543 | 242 sizeof(ngx_http_session_id_ctx) - 1); |
| 541 | 243 |
| 573 | 244 SSL_CTX_set_timeout(conf->ssl.ctx, conf->session_timeout); |
| 245 | |
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246 return NGX_CONF_OK; |
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247 } |
| 563 | 248 |
| 249 | |
| 250 #if !defined (SSL_OP_CIPHER_SERVER_PREFERENCE) | |
| 251 | |
| 252 static char * | |
| 253 ngx_http_ssl_nosupported(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 254 { | |
| 255 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 256 "\"%V\" directive is available only in %s,", | |
| 257 &cmd->name, cmd->post); | |
| 258 | |
| 259 return NGX_CONF_ERROR; | |
| 260 } | |
| 261 | |
| 262 #endif |