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0
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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_event.h>
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10
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90
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11
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12 typedef struct {
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13 ngx_str_t engine;
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14 } ngx_openssl_conf_t;
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28
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15
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0
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16
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220
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17 static int ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store);
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96
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18 static void ngx_ssl_handshake_handler(ngx_event_t *ev);
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38
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19 static ngx_int_t ngx_ssl_handle_recv(ngx_connection_t *c, int n);
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22
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20 static void ngx_ssl_write_handler(ngx_event_t *wev);
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21 static void ngx_ssl_read_handler(ngx_event_t *rev);
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126
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22 static void ngx_ssl_shutdown_handler(ngx_event_t *ev);
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96
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23 static void ngx_ssl_connection_error(ngx_connection_t *c, int sslerr,
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24 ngx_err_t err, char *text);
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272
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25
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26 static ngx_int_t ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone,
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27 void *data);
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28 static int ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn,
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29 ngx_ssl_session_t *sess);
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30 static ngx_ssl_session_t *ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn,
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31 u_char *id, int len, int *copy);
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32 static void ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess);
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33 static void ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
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34 ngx_slab_pool_t *shpool, ngx_uint_t n);
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274
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35 static void ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
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36 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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272
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37
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90
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38 static void *ngx_openssl_create_conf(ngx_cycle_t *cycle);
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39 static char *ngx_openssl_init_conf(ngx_cycle_t *cycle, void *conf);
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120
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40 static void ngx_openssl_exit(ngx_cycle_t *cycle);
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90
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41
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42 #if !(NGX_SSL_ENGINE)
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43 static char *ngx_openssl_noengine(ngx_conf_t *cf, ngx_command_t *cmd,
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44 void *conf);
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45 #endif
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46
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47
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48 static ngx_command_t ngx_openssl_commands[] = {
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49
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50 { ngx_string("ssl_engine"),
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51 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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52 #if (NGX_SSL_ENGINE)
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53 ngx_conf_set_str_slot,
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54 #else
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55 ngx_openssl_noengine,
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56 #endif
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57 0,
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58 offsetof(ngx_openssl_conf_t, engine),
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59 NULL },
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60
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61 ngx_null_command
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62 };
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63
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64
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65 static ngx_core_module_t ngx_openssl_module_ctx = {
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66 ngx_string("openssl"),
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67 ngx_openssl_create_conf,
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68 ngx_openssl_init_conf
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126
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69 };
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90
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70
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71
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72 ngx_module_t ngx_openssl_module = {
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73 NGX_MODULE_V1,
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74 &ngx_openssl_module_ctx, /* module context */
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75 ngx_openssl_commands, /* module directives */
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76 NGX_CORE_MODULE, /* module type */
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77 NULL, /* init master */
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78 NULL, /* init module */
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79 NULL, /* init process */
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80 NULL, /* init thread */
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81 NULL, /* exit thread */
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82 NULL, /* exit process */
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120
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83 ngx_openssl_exit, /* exit master */
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90
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84 NGX_MODULE_V1_PADDING
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96
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85 };
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86
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87
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88 static long ngx_ssl_protocols[] = {
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89 SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1,
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90 SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1,
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91 SSL_OP_NO_SSLv2|SSL_OP_NO_TLSv1,
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92 SSL_OP_NO_TLSv1,
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93 SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3,
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94 SSL_OP_NO_SSLv3,
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95 SSL_OP_NO_SSLv2,
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96 0,
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97 };
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0
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98
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99
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272
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100 int ngx_ssl_connection_index;
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101 int ngx_ssl_server_conf_index;
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102 int ngx_ssl_session_cache_index;
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220
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103
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104
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38
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105 ngx_int_t
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106 ngx_ssl_init(ngx_log_t *log)
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0
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107 {
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272
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108 #if OPENSSL_VERSION_NUMBER >= 0x00907000
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109 OPENSSL_config(NULL);
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110 #endif
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111
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0
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112 SSL_library_init();
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113 SSL_load_error_strings();
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90
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114
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115 #if (NGX_SSL_ENGINE)
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28
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116 ENGINE_load_builtin_engines();
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90
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117 #endif
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0
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118
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272
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119 ngx_ssl_connection_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
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120
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121 if (ngx_ssl_connection_index == -1) {
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122 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "SSL_get_ex_new_index() failed");
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123 return NGX_ERROR;
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124 }
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220
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125
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272
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126 ngx_ssl_server_conf_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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127 NULL);
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128 if (ngx_ssl_server_conf_index == -1) {
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129 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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130 "SSL_CTX_get_ex_new_index() failed");
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131 return NGX_ERROR;
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132 }
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133
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134 ngx_ssl_session_cache_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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135 NULL);
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136 if (ngx_ssl_session_cache_index == -1) {
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137 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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138 "SSL_CTX_get_ex_new_index() failed");
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220
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139 return NGX_ERROR;
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140 }
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141
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0
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142 return NGX_OK;
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143 }
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144
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145
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38
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146 ngx_int_t
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272
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147 ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
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96
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148 {
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126
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149 ssl->ctx = SSL_CTX_new(SSLv23_method());
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96
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150
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151 if (ssl->ctx == NULL) {
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152 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "SSL_CTX_new() failed");
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153 return NGX_ERROR;
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154 }
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155
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272
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156 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_server_conf_index, data) == 0) {
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157 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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158 "SSL_CTX_set_ex_data() failed");
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159 return NGX_ERROR;
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160 }
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161
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126
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162 /* client side options */
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163
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164 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_SESS_ID_BUG);
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165 SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_CHALLENGE_BUG);
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166 SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG);
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167
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168 /* server side options */
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112
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169
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170 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
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171 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
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172
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173 /* this option allow a potential SSL 2.0 rollback (CAN-2005-2969) */
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174 SSL_CTX_set_options(ssl->ctx, SSL_OP_MSIE_SSLV2_RSA_PADDING);
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175
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176 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
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177 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);
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178 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_BLOCK_PADDING_BUG);
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179
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180 #ifdef SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
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181 SSL_CTX_set_options(ssl->ctx, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
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182 #endif
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183
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96
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184
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185 if (ngx_ssl_protocols[protocols >> 1] != 0) {
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186 SSL_CTX_set_options(ssl->ctx, ngx_ssl_protocols[protocols >> 1]);
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187 }
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188
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189 SSL_CTX_set_mode(ssl->ctx, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
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190
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191 SSL_CTX_set_read_ahead(ssl->ctx, 1);
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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 ngx_int_t
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112
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198 ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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199 ngx_str_t *key)
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96
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200 {
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112
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201 if (ngx_conf_full_name(cf->cycle, cert) == NGX_ERROR) {
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96
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202 return NGX_ERROR;
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203 }
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204
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112
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205 if (SSL_CTX_use_certificate_chain_file(ssl->ctx, (char *) cert->data)
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96
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206 == 0)
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207 {
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208 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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112
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209 "SSL_CTX_use_certificate_chain_file(\"%s\") failed",
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210 cert->data);
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211 return NGX_ERROR;
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212 }
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213
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214 if (ngx_conf_full_name(cf->cycle, key) == NGX_ERROR) {
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215 return NGX_ERROR;
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216 }
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217
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218 if (SSL_CTX_use_PrivateKey_file(ssl->ctx, (char *) key->data,
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196
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219 SSL_FILETYPE_PEM)
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220 == 0)
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112
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221 {
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222 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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223 "SSL_CTX_use_PrivateKey_file(\"%s\") failed", key->data);
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96
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224 return NGX_ERROR;
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225 }
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226
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227 return NGX_OK;
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228 }
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229
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230
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231 ngx_int_t
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220
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232 ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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233 ngx_int_t depth)
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196
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234 {
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220
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235 STACK_OF(X509_NAME) *list;
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236
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237 SSL_CTX_set_verify(ssl->ctx, SSL_VERIFY_PEER, ngx_http_ssl_verify_callback);
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238
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239 SSL_CTX_set_verify_depth(ssl->ctx, depth);
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240
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241 if (cert->len == 0) {
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242 return NGX_OK;
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243 }
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244
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196
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245 if (ngx_conf_full_name(cf->cycle, cert) == NGX_ERROR) {
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246 return NGX_ERROR;
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247 }
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248
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249 if (SSL_CTX_load_verify_locations(ssl->ctx, (char *) cert->data, NULL)
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250 == 0)
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251 {
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252 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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253 "SSL_CTX_load_verify_locations(\"%s\") failed",
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254 cert->data);
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255 return NGX_ERROR;
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256 }
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257
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220
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258 list = SSL_load_client_CA_file((char *) cert->data);
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259
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260 if (list == NULL) {
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261 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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262 "SSL_load_client_CA_file(\"%s\") failed", cert->data);
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263 return NGX_ERROR;
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264 }
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265
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266 /*
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267 * before 0.9.7h and 0.9.8 SSL_load_client_CA_file()
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268 * always leaved an error in the error queue
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269 */
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270
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271 ERR_clear_error();
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272
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273 SSL_CTX_set_client_CA_list(ssl->ctx, list);
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274
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196
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275 return NGX_OK;
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276 }
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277
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278
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220
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279 static int
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280 ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store)
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281 {
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282 char *subject, *issuer;
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283 int err, depth;
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284 X509 *cert;
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285 X509_NAME *name;
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286 ngx_connection_t *c;
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287 ngx_ssl_conn_t *ssl_conn;
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288
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289 ssl_conn = X509_STORE_CTX_get_ex_data(x509_store,
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290 SSL_get_ex_data_X509_STORE_CTX_idx());
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291
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292 c = ngx_ssl_get_connection(ssl_conn);
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293
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294 cert = X509_STORE_CTX_get_current_cert(x509_store);
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295 err = X509_STORE_CTX_get_error(x509_store);
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296 depth = X509_STORE_CTX_get_error_depth(x509_store);
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297
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298 name = X509_get_subject_name(cert);
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299 subject = name ? X509_NAME_oneline(name, NULL, 0) : "(none)";
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300
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301 name = X509_get_issuer_name(cert);
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302 issuer = name ? X509_NAME_oneline(name, NULL, 0) : "(none)";
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303
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272
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304 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
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220
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305 "verify:%d, error:%d, depth:%d, "
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306 "subject:\"%s\",issuer: \"%s\"",
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307 ok, err, depth, subject, issuer);
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308
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309 return 1;
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310 }
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311
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312
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196
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313 ngx_int_t
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96
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314 ngx_ssl_generate_rsa512_key(ngx_ssl_t *ssl)
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315 {
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220
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316 RSA *key;
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317
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108
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318 if (SSL_CTX_need_tmp_RSA(ssl->ctx) == 0) {
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319 return NGX_OK;
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320 }
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321
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220
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322 key = RSA_generate_key(512, RSA_F4, NULL, NULL);
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96
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323
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220
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324 if (key) {
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325 SSL_CTX_set_tmp_rsa(ssl->ctx, key);
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326
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327 RSA_free(key);
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328
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96
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329 return NGX_OK;
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330 }
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331
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332 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "RSA_generate_key(512) failed");
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333
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334 return NGX_ERROR;
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335 }
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336
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337
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338 ngx_int_t
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339 ngx_ssl_create_connection(ngx_ssl_t *ssl, ngx_connection_t *c, ngx_uint_t flags)
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126
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340 {
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96
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341 ngx_ssl_connection_t *sc;
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0
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342
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96
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343 sc = ngx_pcalloc(c->pool, sizeof(ngx_ssl_connection_t));
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344 if (sc == NULL) {
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0
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345 return NGX_ERROR;
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346 }
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347
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92
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348 if (flags & NGX_SSL_BUFFER) {
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96
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349 sc->buffer = 1;
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92
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350
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96
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351 sc->buf = ngx_create_temp_buf(c->pool, NGX_SSL_BUFSIZE);
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352 if (sc->buf == NULL) {
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92
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353 return NGX_ERROR;
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354 }
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0
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355 }
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356
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96
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357 sc->connection = SSL_new(ssl->ctx);
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0
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358
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96
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359 if (sc->connection == NULL) {
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0
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360 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_new() failed");
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361 return NGX_ERROR;
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362 }
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363
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96
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364 if (SSL_set_fd(sc->connection, c->fd) == 0) {
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0
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365 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_fd() failed");
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366 return NGX_ERROR;
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367 }
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368
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126
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369 if (flags & NGX_SSL_CLIENT) {
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370 SSL_set_connect_state(sc->connection);
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371
|
|
|
372 } else {
|
|
|
373 SSL_set_accept_state(sc->connection);
|
|
|
374 }
|
|
0
|
375
|
|
272
|
376 if (SSL_set_ex_data(sc->connection, ngx_ssl_connection_index, c) == 0) {
|
|
220
|
377 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
|
|
|
378 return NGX_ERROR;
|
|
|
379 }
|
|
|
380
|
|
96
|
381 c->ssl = sc;
|
|
0
|
382
|
|
|
383 return NGX_OK;
|
|
|
384 }
|
|
|
385
|
|
|
386
|
|
96
|
387 ngx_int_t
|
|
126
|
388 ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session)
|
|
|
389 {
|
|
|
390 if (session) {
|
|
|
391 if (SSL_set_session(c->ssl->connection, session) == 0) {
|
|
|
392 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_session() failed");
|
|
|
393 return NGX_ERROR;
|
|
|
394 }
|
|
|
395 }
|
|
|
396
|
|
|
397 return NGX_OK;
|
|
|
398 }
|
|
|
399
|
|
|
400
|
|
|
401 ngx_int_t
|
|
96
|
402 ngx_ssl_handshake(ngx_connection_t *c)
|
|
|
403 {
|
|
|
404 int n, sslerr;
|
|
|
405 ngx_err_t err;
|
|
|
406
|
|
|
407 n = SSL_do_handshake(c->ssl->connection);
|
|
|
408
|
|
126
|
409 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
|
|
96
|
410
|
|
|
411 if (n == 1) {
|
|
|
412
|
|
|
413 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
414 return NGX_ERROR;
|
|
|
415 }
|
|
|
416
|
|
|
417 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
418 return NGX_ERROR;
|
|
|
419 }
|
|
|
420
|
|
|
421 #if (NGX_DEBUG)
|
|
|
422 {
|
|
|
423 char buf[129], *s, *d;
|
|
|
424 SSL_CIPHER *cipher;
|
|
|
425
|
|
|
426 cipher = SSL_get_current_cipher(c->ssl->connection);
|
|
|
427
|
|
|
428 if (cipher) {
|
|
|
429 SSL_CIPHER_description(cipher, &buf[1], 128);
|
|
|
430
|
|
|
431 for (s = &buf[1], d = buf; *s; s++) {
|
|
|
432 if (*s == ' ' && *d == ' ') {
|
|
|
433 continue;
|
|
|
434 }
|
|
|
435
|
|
|
436 if (*s == LF || *s == CR) {
|
|
|
437 continue;
|
|
|
438 }
|
|
|
439
|
|
|
440 *++d = *s;
|
|
|
441 }
|
|
|
442
|
|
|
443 if (*d != ' ') {
|
|
|
444 d++;
|
|
|
445 }
|
|
|
446
|
|
|
447 *d = '\0';
|
|
|
448
|
|
132
|
449 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
450 "SSL: %s, cipher: \"%s\"",
|
|
126
|
451 SSL_get_version(c->ssl->connection), &buf[1]);
|
|
96
|
452
|
|
|
453 if (SSL_session_reused(c->ssl->connection)) {
|
|
132
|
454 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
455 "SSL reused session");
|
|
|
456 }
|
|
|
457
|
|
|
458 } else {
|
|
|
459 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
460 "SSL no shared ciphers");
|
|
96
|
461 }
|
|
|
462 }
|
|
|
463 #endif
|
|
|
464
|
|
|
465 c->ssl->handshaked = 1;
|
|
|
466
|
|
|
467 c->recv = ngx_ssl_recv;
|
|
|
468 c->send = ngx_ssl_write;
|
|
126
|
469 c->recv_chain = ngx_ssl_recv_chain;
|
|
|
470 c->send_chain = ngx_ssl_send_chain;
|
|
96
|
471
|
|
|
472 return NGX_OK;
|
|
|
473 }
|
|
|
474
|
|
|
475 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
476
|
|
|
477 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
478
|
|
|
479 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
480 c->read->ready = 0;
|
|
|
481 c->read->handler = ngx_ssl_handshake_handler;
|
|
140
|
482 c->write->handler = ngx_ssl_handshake_handler;
|
|
96
|
483
|
|
|
484 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
485 return NGX_ERROR;
|
|
|
486 }
|
|
|
487
|
|
|
488 return NGX_AGAIN;
|
|
|
489 }
|
|
|
490
|
|
|
491 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
492 c->write->ready = 0;
|
|
140
|
493 c->read->handler = ngx_ssl_handshake_handler;
|
|
96
|
494 c->write->handler = ngx_ssl_handshake_handler;
|
|
|
495
|
|
|
496 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
497 return NGX_ERROR;
|
|
|
498 }
|
|
|
499
|
|
|
500 return NGX_AGAIN;
|
|
|
501 }
|
|
|
502
|
|
|
503 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
504
|
|
|
505 c->ssl->no_wait_shutdown = 1;
|
|
|
506 c->ssl->no_send_shutdown = 1;
|
|
140
|
507 c->read->eof = 1;
|
|
96
|
508
|
|
|
509 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
|
510 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
126
|
511 "peer closed connection in SSL handshake");
|
|
96
|
512
|
|
|
513 return NGX_ERROR;
|
|
|
514 }
|
|
|
515
|
|
140
|
516 c->read->error = 1;
|
|
|
517
|
|
96
|
518 ngx_ssl_connection_error(c, sslerr, err, "SSL_do_handshake() failed");
|
|
|
519
|
|
|
520 return NGX_ERROR;
|
|
|
521 }
|
|
|
522
|
|
|
523
|
|
|
524 static void
|
|
|
525 ngx_ssl_handshake_handler(ngx_event_t *ev)
|
|
|
526 {
|
|
|
527 ngx_connection_t *c;
|
|
|
528
|
|
|
529 c = ev->data;
|
|
|
530
|
|
98
|
531 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
532 "SSL handshake handler: %d", ev->write);
|
|
96
|
533
|
|
140
|
534 if (ev->timedout) {
|
|
|
535 c->ssl->handler(c);
|
|
|
536 return;
|
|
|
537 }
|
|
|
538
|
|
96
|
539 if (ngx_ssl_handshake(c) == NGX_AGAIN) {
|
|
|
540 return;
|
|
|
541 }
|
|
|
542
|
|
|
543 c->ssl->handler(c);
|
|
|
544 }
|
|
|
545
|
|
|
546
|
|
38
|
547 ssize_t
|
|
126
|
548 ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl)
|
|
|
549 {
|
|
|
550 ssize_t n, bytes;
|
|
|
551 ngx_buf_t *b;
|
|
|
552
|
|
|
553 bytes = 0;
|
|
|
554
|
|
|
555 while (cl) {
|
|
|
556 b = cl->buf;
|
|
|
557
|
|
|
558 n = ngx_ssl_recv(c, b->last, b->end - b->last);
|
|
|
559
|
|
|
560 if (n > 0) {
|
|
|
561 b->last += n;
|
|
|
562 bytes += n;
|
|
|
563
|
|
|
564 if (b->last == b->end) {
|
|
|
565 cl = cl->next;
|
|
|
566 }
|
|
|
567
|
|
|
568 continue;
|
|
|
569 }
|
|
|
570
|
|
|
571 if (bytes) {
|
|
|
572 return bytes;
|
|
|
573 }
|
|
|
574
|
|
|
575 return n;
|
|
|
576 }
|
|
|
577
|
|
|
578 return bytes;
|
|
|
579 }
|
|
|
580
|
|
|
581
|
|
|
582 ssize_t
|
|
38
|
583 ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size)
|
|
0
|
584 {
|
|
38
|
585 int n, bytes;
|
|
|
586
|
|
|
587 if (c->ssl->last == NGX_ERROR) {
|
|
|
588 return NGX_ERROR;
|
|
|
589 }
|
|
|
590
|
|
126
|
591 if (c->ssl->last == NGX_DONE) {
|
|
|
592 return 0;
|
|
|
593 }
|
|
|
594
|
|
38
|
595 bytes = 0;
|
|
0
|
596
|
|
38
|
597 /*
|
|
|
598 * SSL_read() may return data in parts, so try to read
|
|
|
599 * until SSL_read() would return no data
|
|
|
600 */
|
|
|
601
|
|
|
602 for ( ;; ) {
|
|
0
|
603
|
|
92
|
604 n = SSL_read(c->ssl->connection, buf, size);
|
|
38
|
605
|
|
126
|
606 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_read: %d", n);
|
|
0
|
607
|
|
38
|
608 if (n > 0) {
|
|
|
609 bytes += n;
|
|
|
610 }
|
|
|
611
|
|
|
612 c->ssl->last = ngx_ssl_handle_recv(c, n);
|
|
|
613
|
|
|
614 if (c->ssl->last != NGX_OK) {
|
|
28
|
615
|
|
38
|
616 if (bytes) {
|
|
|
617 return bytes;
|
|
126
|
618 }
|
|
38
|
619
|
|
126
|
620 if (c->ssl->last == NGX_DONE) {
|
|
|
621 return 0;
|
|
28
|
622 }
|
|
126
|
623
|
|
|
624 return c->ssl->last;
|
|
28
|
625 }
|
|
|
626
|
|
38
|
627 size -= n;
|
|
|
628
|
|
|
629 if (size == 0) {
|
|
|
630 return bytes;
|
|
|
631 }
|
|
|
632
|
|
|
633 buf += n;
|
|
|
634 }
|
|
|
635 }
|
|
|
636
|
|
|
637
|
|
|
638 static ngx_int_t
|
|
|
639 ngx_ssl_handle_recv(ngx_connection_t *c, int n)
|
|
|
640 {
|
|
96
|
641 int sslerr;
|
|
|
642 ngx_err_t err;
|
|
38
|
643
|
|
|
644 if (n > 0) {
|
|
28
|
645
|
|
22
|
646 if (c->ssl->saved_write_handler) {
|
|
|
647
|
|
58
|
648 c->write->handler = c->ssl->saved_write_handler;
|
|
22
|
649 c->ssl->saved_write_handler = NULL;
|
|
|
650 c->write->ready = 1;
|
|
|
651
|
|
|
652 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
653 return NGX_ERROR;
|
|
|
654 }
|
|
|
655
|
|
112
|
656 ngx_post_event(c->write, &ngx_posted_events);
|
|
22
|
657 }
|
|
|
658
|
|
38
|
659 return NGX_OK;
|
|
0
|
660 }
|
|
|
661
|
|
92
|
662 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
663
|
|
|
664 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
665
|
|
|
666 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
667
|
|
|
668 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
4
|
669 c->read->ready = 0;
|
|
0
|
670 return NGX_AGAIN;
|
|
|
671 }
|
|
|
672
|
|
|
673 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
88
|
674
|
|
96
|
675 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
676 "peer started SSL renegotiation");
|
|
22
|
677
|
|
|
678 c->write->ready = 0;
|
|
|
679
|
|
|
680 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
681 return NGX_ERROR;
|
|
|
682 }
|
|
|
683
|
|
|
684 /*
|
|
|
685 * we do not set the timer because there is already the read event timer
|
|
|
686 */
|
|
|
687
|
|
|
688 if (c->ssl->saved_write_handler == NULL) {
|
|
58
|
689 c->ssl->saved_write_handler = c->write->handler;
|
|
|
690 c->write->handler = ngx_ssl_write_handler;
|
|
22
|
691 }
|
|
|
692
|
|
0
|
693 return NGX_AGAIN;
|
|
|
694 }
|
|
|
695
|
|
96
|
696 c->ssl->no_wait_shutdown = 1;
|
|
|
697 c->ssl->no_send_shutdown = 1;
|
|
138
|
698 c->read->eof = 1;
|
|
0
|
699
|
|
|
700 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
126
|
701 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
702 "peer shutdown SSL cleanly");
|
|
|
703 return NGX_DONE;
|
|
0
|
704 }
|
|
|
705
|
|
140
|
706 c->read->error = 1;
|
|
96
|
707 ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");
|
|
0
|
708
|
|
|
709 return NGX_ERROR;
|
|
|
710 }
|
|
|
711
|
|
|
712
|
|
38
|
713 static void
|
|
|
714 ngx_ssl_write_handler(ngx_event_t *wev)
|
|
22
|
715 {
|
|
|
716 ngx_connection_t *c;
|
|
|
717
|
|
|
718 c = wev->data;
|
|
96
|
719
|
|
58
|
720 c->read->handler(c->read);
|
|
22
|
721 }
|
|
|
722
|
|
|
723
|
|
0
|
724 /*
|
|
|
725 * OpenSSL has no SSL_writev() so we copy several bufs into our 16K buffer
|
|
22
|
726 * before the SSL_write() call to decrease a SSL overhead.
|
|
0
|
727 *
|
|
|
728 * Besides for protocols such as HTTP it is possible to always buffer
|
|
|
729 * the output to decrease a SSL overhead some more.
|
|
|
730 */
|
|
|
731
|
|
38
|
732 ngx_chain_t *
|
|
|
733 ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
|
|
0
|
734 {
|
|
|
735 int n;
|
|
|
736 ngx_uint_t flush;
|
|
|
737 ssize_t send, size;
|
|
|
738 ngx_buf_t *buf;
|
|
|
739
|
|
146
|
740 if (!c->ssl->buffer
|
|
|
741 || (in && in->next == NULL && !(c->buffered & NGX_SSL_BUFFERED)))
|
|
|
742 {
|
|
0
|
743
|
|
|
744 /*
|
|
126
|
745 * we avoid a buffer copy if
|
|
|
746 * we do not need to buffer the output
|
|
|
747 * or the incoming buf is a single and our buffer is empty
|
|
0
|
748 */
|
|
|
749
|
|
126
|
750 while (in) {
|
|
|
751 if (ngx_buf_special(in->buf)) {
|
|
|
752 in = in->next;
|
|
|
753 continue;
|
|
|
754 }
|
|
0
|
755
|
|
126
|
756 n = ngx_ssl_write(c, in->buf->pos, in->buf->last - in->buf->pos);
|
|
|
757
|
|
|
758 if (n == NGX_ERROR) {
|
|
|
759 return NGX_CHAIN_ERROR;
|
|
|
760 }
|
|
0
|
761
|
|
126
|
762 if (n == NGX_AGAIN) {
|
|
146
|
763 c->buffered |= NGX_SSL_BUFFERED;
|
|
126
|
764 return in;
|
|
|
765 }
|
|
|
766
|
|
|
767 in->buf->pos += n;
|
|
|
768
|
|
|
769 if (in->buf->pos == in->buf->last) {
|
|
|
770 in = in->next;
|
|
|
771 }
|
|
0
|
772 }
|
|
|
773
|
|
|
774 return in;
|
|
|
775 }
|
|
|
776
|
|
22
|
777
|
|
|
778 /* the maximum limit size is the maximum uint32_t value - the page size */
|
|
|
779
|
|
|
780 if (limit == 0 || limit > NGX_MAX_UINT32_VALUE - ngx_pagesize) {
|
|
|
781 limit = NGX_MAX_UINT32_VALUE - ngx_pagesize;
|
|
|
782 }
|
|
|
783
|
|
|
784
|
|
126
|
785 buf = c->ssl->buf;
|
|
0
|
786 send = 0;
|
|
|
787 flush = (in == NULL) ? 1 : 0;
|
|
|
788
|
|
|
789 for ( ;; ) {
|
|
|
790
|
|
|
791 while (in && buf->last < buf->end) {
|
|
132
|
792 if (in->buf->last_buf || in->buf->flush) {
|
|
0
|
793 flush = 1;
|
|
|
794 }
|
|
|
795
|
|
|
796 if (ngx_buf_special(in->buf)) {
|
|
|
797 in = in->next;
|
|
|
798 continue;
|
|
|
799 }
|
|
|
800
|
|
|
801 size = in->buf->last - in->buf->pos;
|
|
|
802
|
|
|
803 if (size > buf->end - buf->last) {
|
|
|
804 size = buf->end - buf->last;
|
|
|
805 }
|
|
|
806
|
|
|
807 if (send + size > limit) {
|
|
126
|
808 size = (ssize_t) (limit - send);
|
|
0
|
809 flush = 1;
|
|
|
810 }
|
|
|
811
|
|
|
812 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
813 "SSL buf copy: %d", size);
|
|
|
814
|
|
|
815 ngx_memcpy(buf->last, in->buf->pos, size);
|
|
|
816
|
|
|
817 buf->last += size;
|
|
|
818
|
|
|
819 in->buf->pos += size;
|
|
126
|
820
|
|
0
|
821 if (in->buf->pos == in->buf->last) {
|
|
|
822 in = in->next;
|
|
|
823 }
|
|
|
824 }
|
|
|
825
|
|
|
826 size = buf->last - buf->pos;
|
|
|
827
|
|
|
828 if (!flush && buf->last < buf->end && c->ssl->buffer) {
|
|
|
829 break;
|
|
|
830 }
|
|
|
831
|
|
|
832 n = ngx_ssl_write(c, buf->pos, size);
|
|
|
833
|
|
|
834 if (n == NGX_ERROR) {
|
|
|
835 return NGX_CHAIN_ERROR;
|
|
|
836 }
|
|
|
837
|
|
60
|
838 if (n == NGX_AGAIN) {
|
|
146
|
839 c->buffered |= NGX_SSL_BUFFERED;
|
|
60
|
840 return in;
|
|
0
|
841 }
|
|
|
842
|
|
|
843 buf->pos += n;
|
|
|
844 send += n;
|
|
|
845 c->sent += n;
|
|
|
846
|
|
|
847 if (n < size) {
|
|
|
848 break;
|
|
|
849 }
|
|
|
850
|
|
|
851 if (buf->pos == buf->last) {
|
|
|
852 buf->pos = buf->start;
|
|
|
853 buf->last = buf->start;
|
|
|
854 }
|
|
|
855
|
|
|
856 if (in == NULL || send == limit) {
|
|
|
857 break;
|
|
|
858 }
|
|
|
859 }
|
|
|
860
|
|
146
|
861 if (buf->pos < buf->last) {
|
|
|
862 c->buffered |= NGX_SSL_BUFFERED;
|
|
|
863
|
|
|
864 } else {
|
|
|
865 c->buffered &= ~NGX_SSL_BUFFERED;
|
|
|
866 }
|
|
0
|
867
|
|
|
868 return in;
|
|
|
869 }
|
|
|
870
|
|
|
871
|
|
88
|
872 ssize_t
|
|
38
|
873 ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size)
|
|
0
|
874 {
|
|
96
|
875 int n, sslerr;
|
|
|
876 ngx_err_t err;
|
|
0
|
877
|
|
|
878 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %d", size);
|
|
|
879
|
|
92
|
880 n = SSL_write(c->ssl->connection, data, size);
|
|
0
|
881
|
|
|
882 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_write: %d", n);
|
|
|
883
|
|
|
884 if (n > 0) {
|
|
88
|
885
|
|
22
|
886 if (c->ssl->saved_read_handler) {
|
|
|
887
|
|
58
|
888 c->read->handler = c->ssl->saved_read_handler;
|
|
22
|
889 c->ssl->saved_read_handler = NULL;
|
|
|
890 c->read->ready = 1;
|
|
|
891
|
|
|
892 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
893 return NGX_ERROR;
|
|
|
894 }
|
|
|
895
|
|
112
|
896 ngx_post_event(c->read, &ngx_posted_events);
|
|
22
|
897 }
|
|
|
898
|
|
0
|
899 return n;
|
|
|
900 }
|
|
|
901
|
|
92
|
902 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
903
|
|
|
904 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
905
|
|
|
906 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
907
|
|
|
908 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
909 c->write->ready = 0;
|
|
|
910 return NGX_AGAIN;
|
|
|
911 }
|
|
|
912
|
|
|
913 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
2
|
914
|
|
96
|
915 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
916 "peer started SSL renegotiation");
|
|
22
|
917
|
|
|
918 c->read->ready = 0;
|
|
|
919
|
|
|
920 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
921 return NGX_ERROR;
|
|
|
922 }
|
|
|
923
|
|
|
924 /*
|
|
|
925 * we do not set the timer because there is already
|
|
|
926 * the write event timer
|
|
|
927 */
|
|
|
928
|
|
|
929 if (c->ssl->saved_read_handler == NULL) {
|
|
58
|
930 c->ssl->saved_read_handler = c->read->handler;
|
|
|
931 c->read->handler = ngx_ssl_read_handler;
|
|
22
|
932 }
|
|
|
933
|
|
0
|
934 return NGX_AGAIN;
|
|
|
935 }
|
|
|
936
|
|
96
|
937 c->ssl->no_wait_shutdown = 1;
|
|
|
938 c->ssl->no_send_shutdown = 1;
|
|
140
|
939 c->write->error = 1;
|
|
92
|
940
|
|
96
|
941 ngx_ssl_connection_error(c, sslerr, err, "SSL_write() failed");
|
|
0
|
942
|
|
|
943 return NGX_ERROR;
|
|
|
944 }
|
|
|
945
|
|
|
946
|
|
38
|
947 static void
|
|
|
948 ngx_ssl_read_handler(ngx_event_t *rev)
|
|
22
|
949 {
|
|
|
950 ngx_connection_t *c;
|
|
|
951
|
|
|
952 c = rev->data;
|
|
96
|
953
|
|
58
|
954 c->write->handler(c->write);
|
|
22
|
955 }
|
|
|
956
|
|
|
957
|
|
38
|
958 ngx_int_t
|
|
|
959 ngx_ssl_shutdown(ngx_connection_t *c)
|
|
0
|
960 {
|
|
22
|
961 int n, sslerr, mode;
|
|
140
|
962 ngx_err_t err;
|
|
0
|
963 ngx_uint_t again;
|
|
|
964
|
|
126
|
965 if (c->timedout) {
|
|
96
|
966 mode = SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN;
|
|
0
|
967
|
|
96
|
968 } else {
|
|
|
969 mode = SSL_get_shutdown(c->ssl->connection);
|
|
22
|
970
|
|
96
|
971 if (c->ssl->no_wait_shutdown) {
|
|
|
972 mode |= SSL_RECEIVED_SHUTDOWN;
|
|
0
|
973 }
|
|
|
974
|
|
96
|
975 if (c->ssl->no_send_shutdown) {
|
|
|
976 mode |= SSL_SENT_SHUTDOWN;
|
|
0
|
977 }
|
|
|
978 }
|
|
|
979
|
|
96
|
980 SSL_set_shutdown(c->ssl->connection, mode);
|
|
|
981
|
|
0
|
982 again = 0;
|
|
10
|
983 sslerr = 0;
|
|
0
|
984
|
|
|
985 for ( ;; ) {
|
|
92
|
986 n = SSL_shutdown(c->ssl->connection);
|
|
0
|
987
|
|
|
988 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_shutdown: %d", n);
|
|
|
989
|
|
126
|
990 if (n == 1 || (n == 0 && c->timedout)) {
|
|
92
|
991 SSL_free(c->ssl->connection);
|
|
22
|
992 c->ssl = NULL;
|
|
92
|
993
|
|
22
|
994 return NGX_OK;
|
|
|
995 }
|
|
|
996
|
|
0
|
997 if (n == 0) {
|
|
|
998 again = 1;
|
|
|
999 break;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 break;
|
|
|
1003 }
|
|
|
1004
|
|
|
1005 if (!again) {
|
|
92
|
1006 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
1007
|
|
|
1008 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1009 "SSL_get_error: %d", sslerr);
|
|
|
1010 }
|
|
|
1011
|
|
138
|
1012 if (again
|
|
|
1013 || sslerr == SSL_ERROR_WANT_READ
|
|
|
1014 || sslerr == SSL_ERROR_WANT_WRITE)
|
|
|
1015 {
|
|
126
|
1016 c->read->handler = ngx_ssl_shutdown_handler;
|
|
138
|
1017 c->write->handler = ngx_ssl_shutdown_handler;
|
|
126
|
1018
|
|
0
|
1019 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
1020 return NGX_ERROR;
|
|
|
1021 }
|
|
|
1022
|
|
|
1023 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
1024 return NGX_ERROR;
|
|
|
1025 }
|
|
|
1026
|
|
138
|
1027 if (again || sslerr == SSL_ERROR_WANT_READ) {
|
|
|
1028 ngx_add_timer(c->read, 30000);
|
|
|
1029 }
|
|
|
1030
|
|
0
|
1031 return NGX_AGAIN;
|
|
|
1032 }
|
|
|
1033
|
|
140
|
1034 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
1035
|
|
|
1036 ngx_ssl_connection_error(c, sslerr, err, "SSL_shutdown() failed");
|
|
0
|
1037
|
|
92
|
1038 SSL_free(c->ssl->connection);
|
|
|
1039 c->ssl = NULL;
|
|
|
1040
|
|
0
|
1041 return NGX_ERROR;
|
|
|
1042 }
|
|
|
1043
|
|
|
1044
|
|
96
|
1045 static void
|
|
126
|
1046 ngx_ssl_shutdown_handler(ngx_event_t *ev)
|
|
|
1047 {
|
|
|
1048 ngx_connection_t *c;
|
|
|
1049 ngx_connection_handler_pt handler;
|
|
|
1050
|
|
|
1051 c = ev->data;
|
|
|
1052 handler = c->ssl->handler;
|
|
|
1053
|
|
|
1054 if (ev->timedout) {
|
|
|
1055 c->timedout = 1;
|
|
|
1056 }
|
|
|
1057
|
|
272
|
1058 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "SSL shutdown handler");
|
|
126
|
1059
|
|
|
1060 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
1061 return;
|
|
|
1062 }
|
|
|
1063
|
|
|
1064 handler(c);
|
|
|
1065 }
|
|
|
1066
|
|
|
1067
|
|
|
1068 static void
|
|
96
|
1069 ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
|
|
|
1070 char *text)
|
|
|
1071 {
|
|
|
1072 ngx_uint_t level;
|
|
|
1073
|
|
|
1074 level = NGX_LOG_CRIT;
|
|
|
1075
|
|
|
1076 if (sslerr == SSL_ERROR_SYSCALL) {
|
|
|
1077
|
|
|
1078 if (err == NGX_ECONNRESET
|
|
|
1079 || err == NGX_EPIPE
|
|
|
1080 || err == NGX_ENOTCONN
|
|
138
|
1081 #if !(NGX_CRIT_ETIMEDOUT)
|
|
|
1082 || err == NGX_ETIMEDOUT
|
|
|
1083 #endif
|
|
96
|
1084 || err == NGX_ECONNREFUSED
|
|
|
1085 || err == NGX_EHOSTUNREACH)
|
|
|
1086 {
|
|
|
1087 switch (c->log_error) {
|
|
|
1088
|
|
|
1089 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1090 case NGX_ERROR_INFO:
|
|
|
1091 level = NGX_LOG_INFO;
|
|
|
1092 break;
|
|
|
1093
|
|
|
1094 case NGX_ERROR_ERR:
|
|
|
1095 level = NGX_LOG_ERR;
|
|
|
1096 break;
|
|
|
1097
|
|
|
1098 default:
|
|
|
1099 break;
|
|
|
1100 }
|
|
|
1101 }
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 ngx_ssl_error(level, c->log, err, text);
|
|
|
1105 }
|
|
|
1106
|
|
|
1107
|
|
132
|
1108 void ngx_cdecl
|
|
38
|
1109 ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, char *fmt, ...)
|
|
126
|
1110 {
|
|
96
|
1111 u_long n;
|
|
|
1112 va_list args;
|
|
10
|
1113 u_char errstr[NGX_MAX_CONF_ERRSTR], *p, *last;
|
|
|
1114
|
|
|
1115 last = errstr + NGX_MAX_CONF_ERRSTR;
|
|
0
|
1116
|
|
|
1117 va_start(args, fmt);
|
|
10
|
1118 p = ngx_vsnprintf(errstr, sizeof(errstr) - 1, fmt, args);
|
|
0
|
1119 va_end(args);
|
|
|
1120
|
|
96
|
1121 p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);
|
|
|
1122
|
|
132
|
1123 while (p < last) {
|
|
|
1124
|
|
|
1125 n = ERR_get_error();
|
|
|
1126
|
|
|
1127 if (n == 0) {
|
|
|
1128 break;
|
|
|
1129 }
|
|
96
|
1130
|
|
|
1131 *p++ = ' ';
|
|
0
|
1132
|
|
96
|
1133 ERR_error_string_n(n, (char *) p, last - p);
|
|
|
1134
|
|
|
1135 while (p < last && *p) {
|
|
|
1136 p++;
|
|
|
1137 }
|
|
|
1138 }
|
|
0
|
1139
|
|
|
1140 ngx_log_error(level, log, err, "%s)", errstr);
|
|
|
1141 }
|
|
58
|
1142
|
|
|
1143
|
|
272
|
1144 ngx_int_t
|
|
|
1145 ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
|
|
|
1146 ssize_t builtin_session_cache, ngx_shm_zone_t *shm_zone, time_t timeout)
|
|
|
1147 {
|
|
|
1148 long cache_mode;
|
|
|
1149
|
|
|
1150 cache_mode = SSL_SESS_CACHE_SERVER;
|
|
|
1151
|
|
|
1152 if (shm_zone && builtin_session_cache == NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1153 cache_mode |= SSL_SESS_CACHE_NO_INTERNAL;
|
|
|
1154 }
|
|
|
1155
|
|
|
1156 SSL_CTX_set_session_cache_mode(ssl->ctx, cache_mode);
|
|
|
1157
|
|
|
1158 SSL_CTX_set_session_id_context(ssl->ctx, sess_ctx->data, sess_ctx->len);
|
|
|
1159
|
|
|
1160 if (builtin_session_cache != NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1161
|
|
|
1162 if (builtin_session_cache != NGX_SSL_DFLT_BUILTIN_SCACHE) {
|
|
|
1163 SSL_CTX_sess_set_cache_size(ssl->ctx, builtin_session_cache);
|
|
|
1164 }
|
|
|
1165 }
|
|
|
1166
|
|
274
|
1167 SSL_CTX_set_timeout(ssl->ctx, timeout);
|
|
|
1168
|
|
272
|
1169 if (shm_zone) {
|
|
|
1170 shm_zone->init = ngx_ssl_session_cache_init;
|
|
|
1171
|
|
|
1172 SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_session);
|
|
|
1173 SSL_CTX_sess_set_get_cb(ssl->ctx, ngx_ssl_get_cached_session);
|
|
|
1174 SSL_CTX_sess_set_remove_cb(ssl->ctx, ngx_ssl_remove_session);
|
|
|
1175
|
|
|
1176 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_session_cache_index, shm_zone)
|
|
|
1177 == 0)
|
|
|
1178 {
|
|
|
1179 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
1180 "SSL_CTX_set_ex_data() failed");
|
|
|
1181 return NGX_ERROR;
|
|
|
1182 }
|
|
|
1183 }
|
|
|
1184
|
|
|
1185 return NGX_OK;
|
|
|
1186 }
|
|
|
1187
|
|
|
1188
|
|
|
1189 static ngx_int_t
|
|
|
1190 ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
|
|
|
1191 {
|
|
|
1192 ngx_slab_pool_t *shpool;
|
|
|
1193 ngx_rbtree_node_t *sentinel;
|
|
|
1194 ngx_ssl_session_cache_t *cache;
|
|
|
1195
|
|
|
1196 if (data) {
|
|
|
1197 shm_zone->data = data;
|
|
|
1198 return NGX_OK;
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1202
|
|
|
1203 cache = ngx_slab_alloc(shpool, sizeof(ngx_ssl_session_cache_t));
|
|
|
1204 if (cache == NULL) {
|
|
|
1205 return NGX_ERROR;
|
|
|
1206 }
|
|
|
1207
|
|
|
1208 cache->session_cache_head.prev = NULL;
|
|
|
1209 cache->session_cache_head.next = &cache->session_cache_tail;
|
|
|
1210
|
|
|
1211 cache->session_cache_tail.prev = &cache->session_cache_head;
|
|
|
1212 cache->session_cache_tail.next = NULL;
|
|
|
1213
|
|
|
1214 cache->session_rbtree = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_t));
|
|
|
1215 if (cache->session_rbtree == NULL) {
|
|
|
1216 return NGX_ERROR;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 sentinel = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_node_t));
|
|
|
1220 if (sentinel == NULL) {
|
|
|
1221 return NGX_ERROR;
|
|
|
1222 }
|
|
|
1223
|
|
|
1224 ngx_rbtree_sentinel_init(sentinel);
|
|
|
1225
|
|
|
1226 cache->session_rbtree->root = sentinel;
|
|
|
1227 cache->session_rbtree->sentinel = sentinel;
|
|
274
|
1228 cache->session_rbtree->insert = ngx_ssl_session_rbtree_insert_value;
|
|
272
|
1229
|
|
|
1230 shm_zone->data = cache;
|
|
|
1231
|
|
|
1232 return NGX_OK;
|
|
|
1233 }
|
|
|
1234
|
|
|
1235
|
|
|
1236 /*
|
|
274
|
1237 * The length of the session id is 16 bytes for SSLv2 sessions and
|
|
|
1238 * between 1 and 32 bytes for SSLv3/TLSv1, typically 32 bytes.
|
|
|
1239 * It seems that the typical length of the external ASN1 representation
|
|
|
1240 * of a session is 118 or 119 bytes for SSLv3/TSLv1.
|
|
|
1241 *
|
|
|
1242 * Thus on 32-bit platforms we allocate separately an rbtree node,
|
|
|
1243 * a session id, and an ASN1 representation, they take accordingly
|
|
|
1244 * 64, 32, and 128 bytes.
|
|
|
1245 *
|
|
|
1246 * On 64-bit platforms we allocate separately an rbtree node + session_id,
|
|
|
1247 * and an ASN1 representation, they take accordingly 128 and 128 bytes.
|
|
|
1248 *
|
|
272
|
1249 * OpenSSL's i2d_SSL_SESSION() and d2i_SSL_SESSION are slow,
|
|
|
1250 * so they are outside the code locked by shared pool mutex
|
|
|
1251 */
|
|
|
1252
|
|
|
1253 static int
|
|
|
1254 ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
|
|
|
1255 {
|
|
|
1256 int len;
|
|
274
|
1257 u_char *p, *id, *cached_sess;
|
|
272
|
1258 uint32_t hash;
|
|
|
1259 SSL_CTX *ssl_ctx;
|
|
|
1260 ngx_time_t *tp;
|
|
|
1261 ngx_shm_zone_t *shm_zone;
|
|
|
1262 ngx_connection_t *c;
|
|
|
1263 ngx_slab_pool_t *shpool;
|
|
|
1264 ngx_ssl_sess_id_t *sess_id;
|
|
|
1265 ngx_ssl_session_cache_t *cache;
|
|
|
1266 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1267
|
|
|
1268 len = i2d_SSL_SESSION(sess, NULL);
|
|
|
1269
|
|
|
1270 /* do not cache too big session */
|
|
|
1271
|
|
|
1272 if (len > (int) NGX_SSL_MAX_SESSION_SIZE) {
|
|
|
1273 return 0;
|
|
|
1274 }
|
|
|
1275
|
|
|
1276 p = buf;
|
|
|
1277 i2d_SSL_SESSION(sess, &p);
|
|
|
1278
|
|
|
1279 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1280
|
|
|
1281 ssl_ctx = SSL_get_SSL_CTX(ssl_conn);
|
|
|
1282 shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
|
|
|
1283
|
|
|
1284 cache = shm_zone->data;
|
|
|
1285 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1286
|
|
|
1287 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1288
|
|
|
1289 /* drop one or two expired sessions */
|
|
|
1290 ngx_ssl_expire_sessions(cache, shpool, 1);
|
|
|
1291
|
|
274
|
1292 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1293
|
|
|
1294 if (cached_sess == NULL) {
|
|
|
1295
|
|
|
1296 /* drop the oldest non-expired session and try once more */
|
|
|
1297
|
|
|
1298 ngx_ssl_expire_sessions(cache, shpool, 0);
|
|
|
1299
|
|
274
|
1300 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1301
|
|
|
1302 if (cached_sess == NULL) {
|
|
274
|
1303 sess_id = NULL;
|
|
272
|
1304 goto failed;
|
|
|
1305 }
|
|
|
1306 }
|
|
|
1307
|
|
|
1308 sess_id = ngx_slab_alloc_locked(shpool, sizeof(ngx_ssl_sess_id_t));
|
|
|
1309 if (sess_id == NULL) {
|
|
|
1310 goto failed;
|
|
|
1311 }
|
|
|
1312
|
|
274
|
1313 #if (NGX_PTR_SIZE == 8)
|
|
|
1314
|
|
|
1315 id = sess_id->sess_id;
|
|
|
1316
|
|
|
1317 #else
|
|
|
1318
|
|
|
1319 id = ngx_slab_alloc_locked(shpool, sess->session_id_length);
|
|
|
1320 if (id == NULL) {
|
|
|
1321 goto failed;
|
|
|
1322 }
|
|
|
1323
|
|
|
1324 #endif
|
|
|
1325
|
|
|
1326 ngx_memcpy(cached_sess, buf, len);
|
|
272
|
1327
|
|
|
1328 ngx_memcpy(id, sess->session_id, sess->session_id_length);
|
|
|
1329
|
|
|
1330 hash = ngx_crc32_short(sess->session_id, sess->session_id_length);
|
|
|
1331
|
|
|
1332 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1333 "http ssl new session: %08XD:%d:%d",
|
|
|
1334 hash, sess->session_id_length, len);
|
|
|
1335
|
|
274
|
1336 tp = ngx_timeofday();
|
|
|
1337
|
|
272
|
1338 sess_id->node.key = hash;
|
|
|
1339 sess_id->node.data = (u_char) sess->session_id_length;
|
|
|
1340 sess_id->id = id;
|
|
|
1341 sess_id->len = len;
|
|
|
1342 sess_id->session = cached_sess;
|
|
|
1343
|
|
274
|
1344 sess_id->expire = tp->sec + SSL_CTX_get_timeout(ssl_ctx);
|
|
|
1345
|
|
|
1346 sess_id->next = cache->session_cache_head.next;
|
|
|
1347 sess_id->next->prev = sess_id;
|
|
|
1348 sess_id->prev = &cache->session_cache_head;
|
|
|
1349 cache->session_cache_head.next = sess_id;
|
|
272
|
1350
|
|
|
1351 ngx_rbtree_insert(cache->session_rbtree, &sess_id->node);
|
|
|
1352
|
|
|
1353 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1354
|
|
|
1355 return 0;
|
|
|
1356
|
|
|
1357 failed:
|
|
|
1358
|
|
|
1359 if (cached_sess) {
|
|
|
1360 ngx_slab_free_locked(shpool, cached_sess);
|
|
|
1361 }
|
|
|
1362
|
|
274
|
1363 if (sess_id) {
|
|
|
1364 ngx_slab_free_locked(shpool, sess_id);
|
|
272
|
1365 }
|
|
|
1366
|
|
|
1367 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1368
|
|
|
1369 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1370 "could not add new SSL session to the session cache");
|
|
|
1371
|
|
|
1372 return 0;
|
|
|
1373 }
|
|
|
1374
|
|
|
1375
|
|
|
1376 static ngx_ssl_session_t *
|
|
|
1377 ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn, u_char *id, int len,
|
|
|
1378 int *copy)
|
|
|
1379 {
|
|
|
1380 #if OPENSSL_VERSION_NUMBER >= 0x0090707fL
|
|
|
1381 const
|
|
|
1382 #endif
|
|
|
1383 u_char *p;
|
|
|
1384 uint32_t hash;
|
|
274
|
1385 ngx_int_t rc;
|
|
272
|
1386 ngx_time_t *tp;
|
|
|
1387 ngx_shm_zone_t *shm_zone;
|
|
|
1388 ngx_slab_pool_t *shpool;
|
|
|
1389 ngx_connection_t *c;
|
|
|
1390 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1391 ngx_ssl_session_t *sess;
|
|
|
1392 ngx_ssl_sess_id_t *sess_id;
|
|
|
1393 ngx_ssl_session_cache_t *cache;
|
|
|
1394 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1395
|
|
|
1396 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1397
|
|
274
|
1398 hash = ngx_crc32_short(id, (size_t) len);
|
|
272
|
1399 *copy = 0;
|
|
|
1400
|
|
|
1401 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1402 "http ssl get session: %08XD:%d", hash, len);
|
|
|
1403
|
|
|
1404 shm_zone = SSL_CTX_get_ex_data(SSL_get_SSL_CTX(ssl_conn),
|
|
|
1405 ngx_ssl_session_cache_index);
|
|
|
1406
|
|
|
1407 cache = shm_zone->data;
|
|
|
1408
|
|
|
1409 if (cache->session_rbtree == NULL) {
|
|
|
1410 return NULL;
|
|
|
1411 }
|
|
|
1412
|
|
|
1413 sess = NULL;
|
|
|
1414
|
|
|
1415 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1416
|
|
|
1417 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1418
|
|
|
1419 node = cache->session_rbtree->root;
|
|
|
1420 sentinel = cache->session_rbtree->sentinel;
|
|
|
1421
|
|
|
1422 while (node != sentinel) {
|
|
|
1423
|
|
|
1424 if (hash < node->key) {
|
|
|
1425 node = node->left;
|
|
|
1426 continue;
|
|
|
1427 }
|
|
|
1428
|
|
|
1429 if (hash > node->key) {
|
|
|
1430 node = node->right;
|
|
|
1431 continue;
|
|
|
1432 }
|
|
|
1433
|
|
274
|
1434 /* hash == node->key */
|
|
|
1435
|
|
|
1436 do {
|
|
272
|
1437 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1438
|
|
274
|
1439 rc = ngx_memn2cmp(id, sess_id->id,
|
|
|
1440 (size_t) len, (size_t) node->data);
|
|
|
1441 if (rc == 0) {
|
|
272
|
1442
|
|
|
1443 tp = ngx_timeofday();
|
|
|
1444
|
|
274
|
1445 if (sess_id->expire > tp->sec) {
|
|
|
1446 ngx_memcpy(buf, sess_id->session, sess_id->len);
|
|
272
|
1447
|
|
|
1448 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1449
|
|
|
1450 p = buf;
|
|
|
1451 sess = d2i_SSL_SESSION(NULL, &p, sess_id->len);
|
|
|
1452
|
|
|
1453 return sess;
|
|
|
1454 }
|
|
|
1455
|
|
274
|
1456 sess_id->next->prev = sess_id->prev;
|
|
|
1457 sess_id->prev->next = sess_id->next;
|
|
272
|
1458
|
|
|
1459 ngx_rbtree_delete(cache->session_rbtree, node);
|
|
|
1460
|
|
274
|
1461 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1462 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1463 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1464 #endif
|
|
272
|
1465 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1466
|
|
|
1467 sess = NULL;
|
|
|
1468
|
|
274
|
1469 goto done;
|
|
272
|
1470 }
|
|
274
|
1471
|
|
|
1472 node = (rc < 0) ? node->left : node->right;
|
|
|
1473
|
|
|
1474 } while (node != sentinel && hash == node->key);
|
|
|
1475
|
|
|
1476 break;
|
|
272
|
1477 }
|
|
|
1478
|
|
274
|
1479 done:
|
|
|
1480
|
|
272
|
1481 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1482
|
|
|
1483 return sess;
|
|
|
1484 }
|
|
|
1485
|
|
|
1486
|
|
|
1487 static void
|
|
|
1488 ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1489 {
|
|
274
|
1490 size_t len;
|
|
|
1491 u_char *id;
|
|
272
|
1492 uint32_t hash;
|
|
274
|
1493 ngx_int_t rc;
|
|
272
|
1494 ngx_shm_zone_t *shm_zone;
|
|
|
1495 ngx_slab_pool_t *shpool;
|
|
|
1496 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1497 ngx_ssl_sess_id_t *sess_id;
|
|
|
1498 ngx_ssl_session_cache_t *cache;
|
|
|
1499
|
|
|
1500 shm_zone = SSL_CTX_get_ex_data(ssl, ngx_ssl_session_cache_index);
|
|
|
1501
|
|
|
1502 cache = shm_zone->data;
|
|
|
1503
|
|
|
1504 id = sess->session_id;
|
|
274
|
1505 len = (size_t) sess->session_id_length;
|
|
|
1506
|
|
|
1507 hash = ngx_crc32_short(id, len);
|
|
272
|
1508
|
|
|
1509 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
274
|
1510 "http ssl remove session: %08XD:%uz", hash, len);
|
|
272
|
1511
|
|
|
1512 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1513
|
|
|
1514 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1515
|
|
|
1516 node = cache->session_rbtree->root;
|
|
|
1517 sentinel = cache->session_rbtree->sentinel;
|
|
|
1518
|
|
|
1519 while (node != sentinel) {
|
|
|
1520
|
|
|
1521 if (hash < node->key) {
|
|
|
1522 node = node->left;
|
|
|
1523 continue;
|
|
|
1524 }
|
|
|
1525
|
|
|
1526 if (hash > node->key) {
|
|
|
1527 node = node->right;
|
|
|
1528 continue;
|
|
|
1529 }
|
|
|
1530
|
|
274
|
1531 /* hash == node->key */
|
|
|
1532
|
|
|
1533 do {
|
|
272
|
1534 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1535
|
|
274
|
1536 rc = ngx_memn2cmp(id, sess_id->id, len, (size_t) node->data);
|
|
|
1537
|
|
|
1538 if (rc == 0) {
|
|
|
1539 sess_id->next->prev = sess_id->prev;
|
|
|
1540 sess_id->prev->next = sess_id->next;
|
|
272
|
1541
|
|
|
1542 ngx_rbtree_delete(cache->session_rbtree, node);
|
|
|
1543
|
|
274
|
1544 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1545 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1546 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1547 #endif
|
|
272
|
1548 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1549
|
|
274
|
1550 goto done;
|
|
272
|
1551 }
|
|
274
|
1552
|
|
|
1553 node = (rc < 0) ? node->left : node->right;
|
|
|
1554
|
|
|
1555 } while (node != sentinel && hash == node->key);
|
|
|
1556
|
|
|
1557 break;
|
|
272
|
1558 }
|
|
|
1559
|
|
274
|
1560 done:
|
|
|
1561
|
|
272
|
1562 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1563 }
|
|
|
1564
|
|
|
1565
|
|
|
1566 static void
|
|
|
1567 ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
|
|
|
1568 ngx_slab_pool_t *shpool, ngx_uint_t n)
|
|
|
1569 {
|
|
274
|
1570 ngx_time_t *tp;
|
|
|
1571 ngx_ssl_sess_id_t *sess_id;
|
|
272
|
1572
|
|
|
1573 tp = ngx_timeofday();
|
|
|
1574
|
|
|
1575 while (n < 3) {
|
|
|
1576
|
|
274
|
1577 sess_id = cache->session_cache_tail.prev;
|
|
|
1578
|
|
|
1579 if (sess_id == &cache->session_cache_head) {
|
|
272
|
1580 return;
|
|
|
1581 }
|
|
|
1582
|
|
274
|
1583 if (n++ != 0 && sess_id->expire > tp->sec) {
|
|
272
|
1584 break;
|
|
|
1585 }
|
|
|
1586
|
|
274
|
1587 sess_id->next->prev = sess_id->prev;
|
|
|
1588 sess_id->prev->next = sess_id->next;
|
|
272
|
1589
|
|
|
1590 ngx_rbtree_delete(cache->session_rbtree, &sess_id->node);
|
|
|
1591
|
|
|
1592 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
|
1593 "expire session: %08Xi", sess_id->node.key);
|
|
|
1594
|
|
274
|
1595 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1596 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1597 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1598 #endif
|
|
272
|
1599 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1600 }
|
|
|
1601 }
|
|
|
1602
|
|
|
1603
|
|
274
|
1604 static void
|
|
|
1605 ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
1606 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
1607 {
|
|
|
1608 ngx_ssl_sess_id_t *sess_id, *sess_id_temp;
|
|
|
1609
|
|
|
1610 for ( ;; ) {
|
|
|
1611
|
|
|
1612 if (node->key < temp->key) {
|
|
|
1613
|
|
|
1614 if (temp->left == sentinel) {
|
|
|
1615 temp->left = node;
|
|
|
1616 break;
|
|
|
1617 }
|
|
|
1618
|
|
|
1619 temp = temp->left;
|
|
|
1620
|
|
|
1621 } else if (node->key > temp->key) {
|
|
|
1622
|
|
276
|
1623 if (temp->right == sentinel) {
|
|
274
|
1624 temp->right = node;
|
|
|
1625 break;
|
|
|
1626 }
|
|
|
1627
|
|
|
1628 temp = temp->right;
|
|
|
1629
|
|
|
1630 } else { /* node->key == temp->key */
|
|
|
1631
|
|
|
1632 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1633 sess_id_temp = (ngx_ssl_sess_id_t *) temp;
|
|
|
1634
|
|
|
1635 if (ngx_memn2cmp(sess_id->id, sess_id_temp->id,
|
|
|
1636 (size_t) node->data, (size_t) temp->data)
|
|
|
1637 < 0)
|
|
|
1638 {
|
|
|
1639 if (temp->left == sentinel) {
|
|
|
1640 temp->left = node;
|
|
|
1641 break;
|
|
|
1642 }
|
|
|
1643
|
|
|
1644 temp = temp->left;
|
|
276
|
1645
|
|
274
|
1646 } else {
|
|
276
|
1647
|
|
274
|
1648 if (temp->right == sentinel) {
|
|
|
1649 temp->right = node;
|
|
|
1650 break;
|
|
|
1651 }
|
|
|
1652
|
|
|
1653 temp = temp->right;
|
|
|
1654 }
|
|
|
1655 }
|
|
|
1656 }
|
|
|
1657
|
|
|
1658 node->parent = temp;
|
|
|
1659 node->left = sentinel;
|
|
|
1660 node->right = sentinel;
|
|
|
1661 ngx_rbt_red(node);
|
|
276
|
1662 }
|
|
274
|
1663
|
|
|
1664
|
|
58
|
1665 void
|
|
|
1666 ngx_ssl_cleanup_ctx(void *data)
|
|
|
1667 {
|
|
138
|
1668 ngx_ssl_t *ssl = data;
|
|
58
|
1669
|
|
138
|
1670 SSL_CTX_free(ssl->ctx);
|
|
58
|
1671 }
|
|
90
|
1672
|
|
|
1673
|
|
220
|
1674 ngx_int_t
|
|
|
1675 ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1676 {
|
|
220
|
1677 s->data = (u_char *) SSL_get_version(c->ssl->connection);
|
|
|
1678 return NGX_OK;
|
|
160
|
1679 }
|
|
|
1680
|
|
|
1681
|
|
220
|
1682 ngx_int_t
|
|
|
1683 ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1684 {
|
|
220
|
1685 s->data = (u_char *) SSL_get_cipher_name(c->ssl->connection);
|
|
|
1686 return NGX_OK;
|
|
160
|
1687 }
|
|
|
1688
|
|
|
1689
|
|
196
|
1690 ngx_int_t
|
|
|
1691 ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1692 {
|
|
|
1693 char *p;
|
|
|
1694 size_t len;
|
|
|
1695 X509 *cert;
|
|
|
1696 X509_NAME *name;
|
|
|
1697
|
|
|
1698 s->len = 0;
|
|
|
1699
|
|
|
1700 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1701 if (cert == NULL) {
|
|
|
1702 return NGX_OK;
|
|
|
1703 }
|
|
|
1704
|
|
|
1705 name = X509_get_subject_name(cert);
|
|
|
1706 if (name == NULL) {
|
|
|
1707 return NGX_ERROR;
|
|
|
1708 }
|
|
|
1709
|
|
|
1710 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1711
|
|
|
1712 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1713
|
|
|
1714 s->len = len;
|
|
|
1715 s->data = ngx_palloc(pool, len);
|
|
|
1716 if (s->data == NULL) {
|
|
|
1717 OPENSSL_free(p);
|
|
|
1718 return NGX_ERROR;
|
|
|
1719 }
|
|
|
1720
|
|
|
1721 ngx_memcpy(s->data, p, len);
|
|
|
1722
|
|
|
1723 OPENSSL_free(p);
|
|
|
1724
|
|
|
1725 return NGX_OK;
|
|
|
1726 }
|
|
|
1727
|
|
|
1728
|
|
|
1729 ngx_int_t
|
|
|
1730 ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1731 {
|
|
|
1732 char *p;
|
|
|
1733 size_t len;
|
|
|
1734 X509 *cert;
|
|
|
1735 X509_NAME *name;
|
|
|
1736
|
|
|
1737 s->len = 0;
|
|
|
1738
|
|
|
1739 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1740 if (cert == NULL) {
|
|
|
1741 return NGX_OK;
|
|
|
1742 }
|
|
|
1743
|
|
|
1744 name = X509_get_issuer_name(cert);
|
|
|
1745 if (name == NULL) {
|
|
|
1746 return NGX_ERROR;
|
|
|
1747 }
|
|
|
1748
|
|
|
1749 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1750
|
|
|
1751 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1752
|
|
|
1753 s->len = len;
|
|
|
1754 s->data = ngx_palloc(pool, len);
|
|
|
1755 if (s->data == NULL) {
|
|
|
1756 OPENSSL_free(p);
|
|
|
1757 return NGX_ERROR;
|
|
|
1758 }
|
|
|
1759
|
|
|
1760 ngx_memcpy(s->data, p, len);
|
|
|
1761
|
|
|
1762 OPENSSL_free(p);
|
|
|
1763
|
|
|
1764 return NGX_OK;
|
|
|
1765 }
|
|
|
1766
|
|
|
1767
|
|
220
|
1768 ngx_int_t
|
|
|
1769 ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1770 {
|
|
|
1771 size_t len;
|
|
|
1772 X509 *cert;
|
|
|
1773 BIO *bio;
|
|
|
1774
|
|
|
1775 s->len = 0;
|
|
|
1776
|
|
|
1777 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1778 if (cert == NULL) {
|
|
|
1779 return NGX_OK;
|
|
|
1780 }
|
|
|
1781
|
|
|
1782 bio = BIO_new(BIO_s_mem());
|
|
|
1783 if (bio == NULL) {
|
|
|
1784 return NGX_ERROR;
|
|
|
1785 }
|
|
|
1786
|
|
|
1787 i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
|
|
|
1788 len = BIO_pending(bio);
|
|
|
1789
|
|
|
1790 s->len = len;
|
|
|
1791 s->data = ngx_palloc(pool, len);
|
|
|
1792 if (s->data == NULL) {
|
|
|
1793 BIO_free(bio);
|
|
|
1794 return NGX_ERROR;
|
|
|
1795 }
|
|
|
1796
|
|
|
1797 BIO_read(bio, s->data, len);
|
|
|
1798 BIO_free(bio);
|
|
|
1799
|
|
|
1800 return NGX_OK;
|
|
|
1801 }
|
|
|
1802
|
|
|
1803
|
|
90
|
1804 static void *
|
|
|
1805 ngx_openssl_create_conf(ngx_cycle_t *cycle)
|
|
|
1806 {
|
|
|
1807 ngx_openssl_conf_t *oscf;
|
|
126
|
1808
|
|
90
|
1809 oscf = ngx_pcalloc(cycle->pool, sizeof(ngx_openssl_conf_t));
|
|
|
1810 if (oscf == NULL) {
|
|
|
1811 return NGX_CONF_ERROR;
|
|
|
1812 }
|
|
126
|
1813
|
|
90
|
1814 /*
|
|
|
1815 * set by ngx_pcalloc():
|
|
126
|
1816 *
|
|
90
|
1817 * oscf->engine.len = 0;
|
|
|
1818 * oscf->engine.data = NULL;
|
|
126
|
1819 */
|
|
90
|
1820
|
|
|
1821 return oscf;
|
|
|
1822 }
|
|
|
1823
|
|
|
1824
|
|
|
1825 static char *
|
|
|
1826 ngx_openssl_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
|
1827 {
|
|
|
1828 #if (NGX_SSL_ENGINE)
|
|
|
1829 ngx_openssl_conf_t *oscf = conf;
|
|
120
|
1830
|
|
90
|
1831 ENGINE *engine;
|
|
|
1832
|
|
|
1833 if (oscf->engine.len == 0) {
|
|
|
1834 return NGX_CONF_OK;
|
|
|
1835 }
|
|
126
|
1836
|
|
90
|
1837 engine = ENGINE_by_id((const char *) oscf->engine.data);
|
|
|
1838
|
|
|
1839 if (engine == NULL) {
|
|
|
1840 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1841 "ENGINE_by_id(\"%V\") failed", &oscf->engine);
|
|
|
1842 return NGX_CONF_ERROR;
|
|
|
1843 }
|
|
|
1844
|
|
|
1845 if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
|
|
|
1846 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1847 "ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
|
|
|
1848 &oscf->engine);
|
|
|
1849 return NGX_CONF_ERROR;
|
|
|
1850 }
|
|
|
1851
|
|
|
1852 ENGINE_free(engine);
|
|
|
1853
|
|
|
1854 #endif
|
|
|
1855
|
|
|
1856 return NGX_CONF_OK;
|
|
|
1857 }
|
|
|
1858
|
|
|
1859
|
|
|
1860 #if !(NGX_SSL_ENGINE)
|
|
|
1861
|
|
|
1862 static char *
|
|
|
1863 ngx_openssl_noengine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1864 {
|
|
|
1865 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
112
|
1866 "\"ssl_engine\" directive is available only in "
|
|
|
1867 "OpenSSL 0.9.7 and higher,");
|
|
90
|
1868
|
|
|
1869 return NGX_CONF_ERROR;
|
|
|
1870 }
|
|
|
1871
|
|
|
1872 #endif
|
|
120
|
1873
|
|
|
1874
|
|
|
1875 static void
|
|
|
1876 ngx_openssl_exit(ngx_cycle_t *cycle)
|
|
|
1877 {
|
|
|
1878 #if (NGX_SSL_ENGINE)
|
|
|
1879 ENGINE_cleanup();
|
|
|
1880 #endif
|
|
|
1881 }
|
