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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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5
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6
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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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10
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11
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12 #define NGX_DEFLAUT_CERTIFICATE "cert.pem"
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13 #define NGX_DEFLAUT_CERTIFICATE_KEY "cert.pem"
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14
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15
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16 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf);
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17 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf,
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50
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18 void *parent, void *child);
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0
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19
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20
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21 static ngx_command_t ngx_http_ssl_commands[] = {
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22
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23 { ngx_string("ssl"),
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24 NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
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25 ngx_conf_set_flag_slot,
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26 NGX_HTTP_SRV_CONF_OFFSET,
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27 offsetof(ngx_http_ssl_srv_conf_t, enable),
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28 NULL },
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29
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30 { ngx_string("ssl_certificate"),
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31 NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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32 ngx_conf_set_str_slot,
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33 NGX_HTTP_SRV_CONF_OFFSET,
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34 offsetof(ngx_http_ssl_srv_conf_t, certificate),
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35 NULL },
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36
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37 { ngx_string("ssl_certificate_key"),
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38 NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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39 ngx_conf_set_str_slot,
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40 NGX_HTTP_SRV_CONF_OFFSET,
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41 offsetof(ngx_http_ssl_srv_conf_t, certificate_key),
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42 NULL },
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43
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28
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44 { ngx_string("ssl_ciphers"),
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45 NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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46 ngx_conf_set_str_slot,
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47 NGX_HTTP_SRV_CONF_OFFSET,
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48 offsetof(ngx_http_ssl_srv_conf_t, ciphers),
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49 NULL },
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50
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0
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51 ngx_null_command
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52 };
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53
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54
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55 static ngx_http_module_t ngx_http_ssl_module_ctx = {
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58
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56 NULL, /* preconfiguration */
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57 NULL, /* postconfiguration */
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0
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58
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90
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59 NULL, /* create main configuration */
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60 NULL, /* init main configuration */
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61
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62 ngx_http_ssl_create_srv_conf, /* create server configuration */
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63 ngx_http_ssl_merge_srv_conf, /* merge server configuration */
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64
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65 NULL, /* create location configuration */
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34
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66 NULL /* merge location configuration */
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0
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67 };
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68
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69
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70 ngx_module_t ngx_http_ssl_module = {
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58
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71 NGX_MODULE_V1,
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72 &ngx_http_ssl_module_ctx, /* module context */
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73 ngx_http_ssl_commands, /* module directives */
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74 NGX_HTTP_MODULE, /* module type */
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90
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75 NULL, /* init master */
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0
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76 NULL, /* init module */
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90
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77 NULL, /* init process */
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78 NULL, /* init thread */
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79 NULL, /* exit thread */
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80 NULL, /* exit process */
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81 NULL, /* exit master */
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82 NGX_MODULE_V1_PADDING
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0
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83 };
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84
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85
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92
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86 static u_char ngx_http_session_id_ctx[] = "HTTP";
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87
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88
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89 static void *
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90 ngx_http_ssl_create_srv_conf(ngx_conf_t *cf)
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91 {
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92 ngx_http_ssl_srv_conf_t *scf;
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93
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94 scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t));
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95 if (scf == NULL) {
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96 return NGX_CONF_ERROR;
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97 }
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98
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28
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99 /*
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100 * set by ngx_pcalloc():
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101 *
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102 * scf->certificate.len = 0;
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103 * scf->certificate.data = NULL;
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104 * scf->certificate_key.len = 0;
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105 * scf->certificate_key.data = NULL;
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106 * scf->ciphers.len = 0;
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107 * scf->ciphers.data = NULL;
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108 */
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109
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110 scf->enable = NGX_CONF_UNSET;
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111
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112 return scf;
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113 }
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114
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115
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116 static char *
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117 ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
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0
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118 {
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119 ngx_http_ssl_srv_conf_t *prev = parent;
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120 ngx_http_ssl_srv_conf_t *conf = child;
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121
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122 ngx_conf_merge_value(conf->enable, prev->enable, 0);
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123
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124 if (conf->enable == 0) {
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125 return NGX_CONF_OK;
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126 }
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127
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128 ngx_conf_merge_str_value(conf->certificate, prev->certificate,
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129 NGX_DEFLAUT_CERTIFICATE);
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130
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131 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key,
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132 NGX_DEFLAUT_CERTIFICATE_KEY);
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133
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28
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134 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, "");
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135
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136
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0
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137 /* TODO: configure methods */
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138
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139 conf->ssl_ctx = SSL_CTX_new(SSLv23_server_method());
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140
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141 if (conf->ssl_ctx == NULL) {
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142 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, "SSL_CTX_new() failed");
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143 return NGX_CONF_ERROR;
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144 }
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145
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146 if (ngx_pool_cleanup_add(cf->pool, ngx_ssl_cleanup_ctx, conf->ssl_ctx)
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147 == NULL)
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148 {
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149 return NGX_CONF_ERROR;
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150 }
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151
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152
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28
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153 if (conf->ciphers.len) {
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154 if (SSL_CTX_set_cipher_list(conf->ssl_ctx,
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155 (const char *) conf->ciphers.data) == 0)
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156 {
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157 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
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158 "SSL_CTX_set_cipher_list(\"%V\") failed",
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159 &conf->ciphers);
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160 }
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161 }
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162
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163 if (SSL_CTX_use_certificate_chain_file(conf->ssl_ctx,
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164 (char *) conf->certificate.data) == 0)
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165 {
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166 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
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167 "SSL_CTX_use_certificate_chain_file(\"%s\") failed",
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168 conf->certificate.data);
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169 return NGX_CONF_ERROR;
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170 }
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171
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172 if (SSL_CTX_use_PrivateKey_file(conf->ssl_ctx,
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173 (char *) conf->certificate_key.data,
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78
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174 SSL_FILETYPE_PEM) == 0)
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175 {
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176 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
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177 "SSL_CTX_use_PrivateKey_file(\"%s\") failed",
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178 conf->certificate_key.data);
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179 return NGX_CONF_ERROR;
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180 }
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181
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92
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182 SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_ALL);
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183
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184 SSL_CTX_set_mode(conf->ssl_ctx, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
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185
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186 SSL_CTX_set_read_ahead(conf->ssl_ctx, 1);
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187
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188 SSL_CTX_set_session_cache_mode(conf->ssl_ctx, SSL_SESS_CACHE_SERVER);
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189
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190 SSL_CTX_set_session_id_context(conf->ssl_ctx, ngx_http_session_id_ctx,
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191 sizeof(ngx_http_session_id_ctx) - 1);
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192
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193 return NGX_CONF_OK;
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194 }
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195
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196
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197 #if 0
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198
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90
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199 /* how to enumrate server' configs */
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200
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201 static ngx_int_t
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202 ngx_http_ssl_init_process(ngx_cycle_t *cycle)
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203 {
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204 ngx_uint_t i;
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205 ngx_http_ssl_srv_conf_t *sscf;
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206 ngx_http_core_srv_conf_t **cscfp;
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207 ngx_http_core_main_conf_t *cmcf;
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208
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209 cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module);
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210
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211 cscfp = cmcf->servers.elts;
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212
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213 for (i = 0; i < cmcf->servers.nelts; i++) {
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214 sscf = cscfp[i]->ctx->srv_conf[ngx_http_ssl_module.ctx_index];
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215
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216 if (sscf->enable) {
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217 cscfp[i]->recv = ngx_ssl_recv;
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218 cscfp[i]->send_chain = ngx_ssl_send_chain;
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219 }
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220 }
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221
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222 return NGX_OK;
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223 }
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224
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225 #endif
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