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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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358
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25 static void ngx_ssl_clear_error(ngx_log_t *log);
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272
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26
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27 static ngx_int_t ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone,
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28 void *data);
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29 static int ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn,
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30 ngx_ssl_session_t *sess);
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31 static ngx_ssl_session_t *ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn,
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32 u_char *id, int len, int *copy);
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33 static void ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess);
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34 static void ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
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35 ngx_slab_pool_t *shpool, ngx_uint_t n);
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274
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36 static void ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
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37 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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272
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38
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90
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39 static void *ngx_openssl_create_conf(ngx_cycle_t *cycle);
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40 static char *ngx_openssl_init_conf(ngx_cycle_t *cycle, void *conf);
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120
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41 static void ngx_openssl_exit(ngx_cycle_t *cycle);
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90
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42
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43 #if !(NGX_SSL_ENGINE)
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44 static char *ngx_openssl_noengine(ngx_conf_t *cf, ngx_command_t *cmd,
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45 void *conf);
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46 #endif
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47
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48
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49 static ngx_command_t ngx_openssl_commands[] = {
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50
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51 { ngx_string("ssl_engine"),
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52 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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53 #if (NGX_SSL_ENGINE)
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54 ngx_conf_set_str_slot,
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55 #else
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56 ngx_openssl_noengine,
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57 #endif
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58 0,
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59 offsetof(ngx_openssl_conf_t, engine),
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60 NULL },
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61
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62 ngx_null_command
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63 };
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64
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65
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66 static ngx_core_module_t ngx_openssl_module_ctx = {
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67 ngx_string("openssl"),
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68 ngx_openssl_create_conf,
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69 ngx_openssl_init_conf
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126
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70 };
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90
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71
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72
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73 ngx_module_t ngx_openssl_module = {
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74 NGX_MODULE_V1,
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75 &ngx_openssl_module_ctx, /* module context */
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76 ngx_openssl_commands, /* module directives */
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77 NGX_CORE_MODULE, /* module type */
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78 NULL, /* init master */
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79 NULL, /* init module */
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80 NULL, /* init process */
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81 NULL, /* init thread */
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82 NULL, /* exit thread */
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83 NULL, /* exit process */
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120
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84 ngx_openssl_exit, /* exit master */
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90
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85 NGX_MODULE_V1_PADDING
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96
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86 };
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87
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88
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89 static long ngx_ssl_protocols[] = {
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90 SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1,
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91 SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1,
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92 SSL_OP_NO_SSLv2|SSL_OP_NO_TLSv1,
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93 SSL_OP_NO_TLSv1,
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94 SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3,
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95 SSL_OP_NO_SSLv3,
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96 SSL_OP_NO_SSLv2,
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97 0,
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98 };
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0
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99
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100
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272
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101 int ngx_ssl_connection_index;
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102 int ngx_ssl_server_conf_index;
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103 int ngx_ssl_session_cache_index;
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220
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104
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105
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38
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106 ngx_int_t
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107 ngx_ssl_init(ngx_log_t *log)
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0
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108 {
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272
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109 #if OPENSSL_VERSION_NUMBER >= 0x00907000
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110 OPENSSL_config(NULL);
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111 #endif
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112
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0
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113 SSL_library_init();
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114 SSL_load_error_strings();
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90
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115
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116 #if (NGX_SSL_ENGINE)
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28
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117 ENGINE_load_builtin_engines();
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90
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118 #endif
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0
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119
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272
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120 ngx_ssl_connection_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
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121
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122 if (ngx_ssl_connection_index == -1) {
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123 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "SSL_get_ex_new_index() failed");
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124 return NGX_ERROR;
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125 }
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220
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126
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272
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127 ngx_ssl_server_conf_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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128 NULL);
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129 if (ngx_ssl_server_conf_index == -1) {
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130 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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131 "SSL_CTX_get_ex_new_index() failed");
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132 return NGX_ERROR;
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133 }
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134
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135 ngx_ssl_session_cache_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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136 NULL);
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137 if (ngx_ssl_session_cache_index == -1) {
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138 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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139 "SSL_CTX_get_ex_new_index() failed");
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220
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140 return NGX_ERROR;
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141 }
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142
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0
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143 return NGX_OK;
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144 }
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145
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146
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38
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147 ngx_int_t
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272
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148 ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
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96
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149 {
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126
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150 ssl->ctx = SSL_CTX_new(SSLv23_method());
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96
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151
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152 if (ssl->ctx == NULL) {
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153 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "SSL_CTX_new() failed");
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154 return NGX_ERROR;
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155 }
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156
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272
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157 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_server_conf_index, data) == 0) {
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158 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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159 "SSL_CTX_set_ex_data() failed");
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160 return NGX_ERROR;
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161 }
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162
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126
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163 /* client side options */
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164
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165 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_SESS_ID_BUG);
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166 SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_CHALLENGE_BUG);
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167 SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG);
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168
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169 /* server side options */
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112
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170
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171 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
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172 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
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173
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174 /* this option allow a potential SSL 2.0 rollback (CAN-2005-2969) */
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175 SSL_CTX_set_options(ssl->ctx, SSL_OP_MSIE_SSLV2_RSA_PADDING);
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176
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177 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
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178 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);
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179 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_BLOCK_PADDING_BUG);
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180
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181 #ifdef SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
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182 SSL_CTX_set_options(ssl->ctx, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
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183 #endif
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184
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96
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185
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186 if (ngx_ssl_protocols[protocols >> 1] != 0) {
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187 SSL_CTX_set_options(ssl->ctx, ngx_ssl_protocols[protocols >> 1]);
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188 }
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189
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190 SSL_CTX_set_read_ahead(ssl->ctx, 1);
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191
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192 return NGX_OK;
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193 }
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194
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195
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196 ngx_int_t
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112
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197 ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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198 ngx_str_t *key)
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96
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199 {
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324
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200 if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
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96
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201 return NGX_ERROR;
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202 }
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203
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112
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204 if (SSL_CTX_use_certificate_chain_file(ssl->ctx, (char *) cert->data)
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96
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205 == 0)
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206 {
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207 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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112
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208 "SSL_CTX_use_certificate_chain_file(\"%s\") failed",
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209 cert->data);
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210 return NGX_ERROR;
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211 }
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212
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324
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213 if (ngx_conf_full_name(cf->cycle, key, 1) == NGX_ERROR) {
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112
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214 return NGX_ERROR;
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215 }
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216
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217 if (SSL_CTX_use_PrivateKey_file(ssl->ctx, (char *) key->data,
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196
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218 SSL_FILETYPE_PEM)
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219 == 0)
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112
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220 {
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221 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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222 "SSL_CTX_use_PrivateKey_file(\"%s\") failed", key->data);
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96
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223 return NGX_ERROR;
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224 }
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225
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226 return NGX_OK;
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227 }
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228
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229
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230 ngx_int_t
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220
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231 ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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232 ngx_int_t depth)
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196
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233 {
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220
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234 STACK_OF(X509_NAME) *list;
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235
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236 SSL_CTX_set_verify(ssl->ctx, SSL_VERIFY_PEER, ngx_http_ssl_verify_callback);
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237
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238 SSL_CTX_set_verify_depth(ssl->ctx, depth);
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239
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240 if (cert->len == 0) {
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241 return NGX_OK;
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242 }
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243
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324
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244 if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
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196
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245 return NGX_ERROR;
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246 }
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247
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248 if (SSL_CTX_load_verify_locations(ssl->ctx, (char *) cert->data, NULL)
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249 == 0)
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250 {
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251 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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252 "SSL_CTX_load_verify_locations(\"%s\") failed",
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253 cert->data);
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254 return NGX_ERROR;
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255 }
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256
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220
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257 list = SSL_load_client_CA_file((char *) cert->data);
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258
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259 if (list == NULL) {
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260 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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261 "SSL_load_client_CA_file(\"%s\") failed", cert->data);
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262 return NGX_ERROR;
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263 }
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264
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265 /*
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266 * before 0.9.7h and 0.9.8 SSL_load_client_CA_file()
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267 * always leaved an error in the error queue
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268 */
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269
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270 ERR_clear_error();
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271
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272 SSL_CTX_set_client_CA_list(ssl->ctx, list);
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273
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196
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274 return NGX_OK;
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275 }
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276
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277
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220
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278 static int
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279 ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store)
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280 {
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281 char *subject, *issuer;
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282 int err, depth;
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283 X509 *cert;
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284 X509_NAME *name;
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285 ngx_connection_t *c;
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286 ngx_ssl_conn_t *ssl_conn;
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287
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288 ssl_conn = X509_STORE_CTX_get_ex_data(x509_store,
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289 SSL_get_ex_data_X509_STORE_CTX_idx());
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290
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291 c = ngx_ssl_get_connection(ssl_conn);
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292
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293 cert = X509_STORE_CTX_get_current_cert(x509_store);
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294 err = X509_STORE_CTX_get_error(x509_store);
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295 depth = X509_STORE_CTX_get_error_depth(x509_store);
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296
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297 name = X509_get_subject_name(cert);
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298 subject = name ? X509_NAME_oneline(name, NULL, 0) : "(none)";
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299
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300 name = X509_get_issuer_name(cert);
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301 issuer = name ? X509_NAME_oneline(name, NULL, 0) : "(none)";
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302
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272
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303 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
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220
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304 "verify:%d, error:%d, depth:%d, "
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305 "subject:\"%s\",issuer: \"%s\"",
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306 ok, err, depth, subject, issuer);
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307
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308 return 1;
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309 }
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310
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311
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196
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312 ngx_int_t
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96
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313 ngx_ssl_generate_rsa512_key(ngx_ssl_t *ssl)
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314 {
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220
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315 RSA *key;
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316
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108
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317 if (SSL_CTX_need_tmp_RSA(ssl->ctx) == 0) {
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318 return NGX_OK;
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319 }
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320
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220
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321 key = RSA_generate_key(512, RSA_F4, NULL, NULL);
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96
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322
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220
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323 if (key) {
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324 SSL_CTX_set_tmp_rsa(ssl->ctx, key);
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325
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326 RSA_free(key);
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327
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96
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328 return NGX_OK;
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329 }
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330
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331 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "RSA_generate_key(512) failed");
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332
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333 return NGX_ERROR;
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334 }
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335
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336
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337 ngx_int_t
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338 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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339 {
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96
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340 ngx_ssl_connection_t *sc;
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0
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341
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96
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342 sc = ngx_pcalloc(c->pool, sizeof(ngx_ssl_connection_t));
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343 if (sc == NULL) {
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0
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344 return NGX_ERROR;
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345 }
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346
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358
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347 sc->buffer = ((flags & NGX_SSL_BUFFER) != 0);
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0
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348
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96
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349 sc->connection = SSL_new(ssl->ctx);
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0
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350
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96
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351 if (sc->connection == NULL) {
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0
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352 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_new() failed");
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353 return NGX_ERROR;
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354 }
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355
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96
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356 if (SSL_set_fd(sc->connection, c->fd) == 0) {
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0
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357 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_fd() failed");
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358 return NGX_ERROR;
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359 }
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360
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126
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361 if (flags & NGX_SSL_CLIENT) {
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362 SSL_set_connect_state(sc->connection);
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363
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364 } else {
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365 SSL_set_accept_state(sc->connection);
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366 }
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0
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367
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272
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368 if (SSL_set_ex_data(sc->connection, ngx_ssl_connection_index, c) == 0) {
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220
|
369 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
|
|
|
370 return NGX_ERROR;
|
|
|
371 }
|
|
|
372
|
|
96
|
373 c->ssl = sc;
|
|
0
|
374
|
|
|
375 return NGX_OK;
|
|
|
376 }
|
|
|
377
|
|
|
378
|
|
96
|
379 ngx_int_t
|
|
126
|
380 ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session)
|
|
|
381 {
|
|
|
382 if (session) {
|
|
|
383 if (SSL_set_session(c->ssl->connection, session) == 0) {
|
|
|
384 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_session() failed");
|
|
|
385 return NGX_ERROR;
|
|
|
386 }
|
|
|
387 }
|
|
|
388
|
|
|
389 return NGX_OK;
|
|
|
390 }
|
|
|
391
|
|
|
392
|
|
|
393 ngx_int_t
|
|
96
|
394 ngx_ssl_handshake(ngx_connection_t *c)
|
|
|
395 {
|
|
|
396 int n, sslerr;
|
|
|
397 ngx_err_t err;
|
|
|
398
|
|
358
|
399 ngx_ssl_clear_error(c->log);
|
|
|
400
|
|
96
|
401 n = SSL_do_handshake(c->ssl->connection);
|
|
|
402
|
|
126
|
403 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
|
|
96
|
404
|
|
|
405 if (n == 1) {
|
|
|
406
|
|
|
407 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
408 return NGX_ERROR;
|
|
|
409 }
|
|
|
410
|
|
|
411 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
412 return NGX_ERROR;
|
|
|
413 }
|
|
|
414
|
|
|
415 #if (NGX_DEBUG)
|
|
|
416 {
|
|
|
417 char buf[129], *s, *d;
|
|
|
418 SSL_CIPHER *cipher;
|
|
|
419
|
|
|
420 cipher = SSL_get_current_cipher(c->ssl->connection);
|
|
|
421
|
|
|
422 if (cipher) {
|
|
|
423 SSL_CIPHER_description(cipher, &buf[1], 128);
|
|
|
424
|
|
|
425 for (s = &buf[1], d = buf; *s; s++) {
|
|
|
426 if (*s == ' ' && *d == ' ') {
|
|
|
427 continue;
|
|
|
428 }
|
|
|
429
|
|
|
430 if (*s == LF || *s == CR) {
|
|
|
431 continue;
|
|
|
432 }
|
|
|
433
|
|
|
434 *++d = *s;
|
|
|
435 }
|
|
|
436
|
|
|
437 if (*d != ' ') {
|
|
|
438 d++;
|
|
|
439 }
|
|
|
440
|
|
|
441 *d = '\0';
|
|
|
442
|
|
132
|
443 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
444 "SSL: %s, cipher: \"%s\"",
|
|
126
|
445 SSL_get_version(c->ssl->connection), &buf[1]);
|
|
96
|
446
|
|
|
447 if (SSL_session_reused(c->ssl->connection)) {
|
|
132
|
448 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
449 "SSL reused session");
|
|
|
450 }
|
|
|
451
|
|
|
452 } else {
|
|
|
453 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
454 "SSL no shared ciphers");
|
|
96
|
455 }
|
|
|
456 }
|
|
|
457 #endif
|
|
|
458
|
|
|
459 c->ssl->handshaked = 1;
|
|
|
460
|
|
|
461 c->recv = ngx_ssl_recv;
|
|
|
462 c->send = ngx_ssl_write;
|
|
126
|
463 c->recv_chain = ngx_ssl_recv_chain;
|
|
|
464 c->send_chain = ngx_ssl_send_chain;
|
|
96
|
465
|
|
|
466 return NGX_OK;
|
|
|
467 }
|
|
|
468
|
|
|
469 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
470
|
|
|
471 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
472
|
|
|
473 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
474 c->read->ready = 0;
|
|
|
475 c->read->handler = ngx_ssl_handshake_handler;
|
|
140
|
476 c->write->handler = ngx_ssl_handshake_handler;
|
|
96
|
477
|
|
|
478 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
479 return NGX_ERROR;
|
|
|
480 }
|
|
|
481
|
|
|
482 return NGX_AGAIN;
|
|
|
483 }
|
|
|
484
|
|
|
485 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
486 c->write->ready = 0;
|
|
140
|
487 c->read->handler = ngx_ssl_handshake_handler;
|
|
96
|
488 c->write->handler = ngx_ssl_handshake_handler;
|
|
|
489
|
|
|
490 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
491 return NGX_ERROR;
|
|
|
492 }
|
|
|
493
|
|
|
494 return NGX_AGAIN;
|
|
|
495 }
|
|
|
496
|
|
|
497 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
498
|
|
|
499 c->ssl->no_wait_shutdown = 1;
|
|
|
500 c->ssl->no_send_shutdown = 1;
|
|
140
|
501 c->read->eof = 1;
|
|
96
|
502
|
|
|
503 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
|
504 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
126
|
505 "peer closed connection in SSL handshake");
|
|
96
|
506
|
|
|
507 return NGX_ERROR;
|
|
|
508 }
|
|
|
509
|
|
140
|
510 c->read->error = 1;
|
|
|
511
|
|
96
|
512 ngx_ssl_connection_error(c, sslerr, err, "SSL_do_handshake() failed");
|
|
|
513
|
|
|
514 return NGX_ERROR;
|
|
|
515 }
|
|
|
516
|
|
|
517
|
|
|
518 static void
|
|
|
519 ngx_ssl_handshake_handler(ngx_event_t *ev)
|
|
|
520 {
|
|
|
521 ngx_connection_t *c;
|
|
|
522
|
|
|
523 c = ev->data;
|
|
|
524
|
|
98
|
525 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
526 "SSL handshake handler: %d", ev->write);
|
|
96
|
527
|
|
140
|
528 if (ev->timedout) {
|
|
|
529 c->ssl->handler(c);
|
|
|
530 return;
|
|
|
531 }
|
|
|
532
|
|
96
|
533 if (ngx_ssl_handshake(c) == NGX_AGAIN) {
|
|
|
534 return;
|
|
|
535 }
|
|
|
536
|
|
|
537 c->ssl->handler(c);
|
|
|
538 }
|
|
|
539
|
|
|
540
|
|
38
|
541 ssize_t
|
|
126
|
542 ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl)
|
|
|
543 {
|
|
294
|
544 u_char *last;
|
|
126
|
545 ssize_t n, bytes;
|
|
|
546 ngx_buf_t *b;
|
|
|
547
|
|
|
548 bytes = 0;
|
|
|
549
|
|
294
|
550 b = cl->buf;
|
|
|
551 last = b->last;
|
|
|
552
|
|
|
553 for ( ;; ) {
|
|
|
554
|
|
|
555 n = ngx_ssl_recv(c, last, b->end - last);
|
|
126
|
556
|
|
|
557 if (n > 0) {
|
|
294
|
558 last += n;
|
|
126
|
559 bytes += n;
|
|
|
560
|
|
294
|
561 if (last == b->end) {
|
|
126
|
562 cl = cl->next;
|
|
294
|
563
|
|
|
564 if (cl == NULL) {
|
|
|
565 return bytes;
|
|
|
566 }
|
|
|
567
|
|
|
568 b = cl->buf;
|
|
|
569 last = b->last;
|
|
126
|
570 }
|
|
|
571
|
|
|
572 continue;
|
|
|
573 }
|
|
|
574
|
|
|
575 if (bytes) {
|
|
|
576 return bytes;
|
|
|
577 }
|
|
|
578
|
|
|
579 return n;
|
|
|
580 }
|
|
|
581 }
|
|
|
582
|
|
|
583
|
|
|
584 ssize_t
|
|
38
|
585 ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size)
|
|
0
|
586 {
|
|
38
|
587 int n, bytes;
|
|
|
588
|
|
|
589 if (c->ssl->last == NGX_ERROR) {
|
|
330
|
590 c->read->error = 1;
|
|
38
|
591 return NGX_ERROR;
|
|
|
592 }
|
|
|
593
|
|
126
|
594 if (c->ssl->last == NGX_DONE) {
|
|
330
|
595 c->read->ready = 0;
|
|
|
596 c->read->eof = 1;
|
|
126
|
597 return 0;
|
|
|
598 }
|
|
|
599
|
|
38
|
600 bytes = 0;
|
|
0
|
601
|
|
358
|
602 ngx_ssl_clear_error(c->log);
|
|
|
603
|
|
38
|
604 /*
|
|
|
605 * SSL_read() may return data in parts, so try to read
|
|
|
606 * until SSL_read() would return no data
|
|
|
607 */
|
|
|
608
|
|
|
609 for ( ;; ) {
|
|
0
|
610
|
|
92
|
611 n = SSL_read(c->ssl->connection, buf, size);
|
|
38
|
612
|
|
126
|
613 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_read: %d", n);
|
|
0
|
614
|
|
38
|
615 if (n > 0) {
|
|
|
616 bytes += n;
|
|
|
617 }
|
|
|
618
|
|
|
619 c->ssl->last = ngx_ssl_handle_recv(c, n);
|
|
|
620
|
|
330
|
621 if (c->ssl->last == NGX_OK) {
|
|
|
622
|
|
|
623 size -= n;
|
|
|
624
|
|
|
625 if (size == 0) {
|
|
38
|
626 return bytes;
|
|
126
|
627 }
|
|
38
|
628
|
|
330
|
629 buf += n;
|
|
|
630
|
|
|
631 continue;
|
|
|
632 }
|
|
|
633
|
|
|
634 if (bytes) {
|
|
|
635 return bytes;
|
|
|
636 }
|
|
|
637
|
|
|
638 switch (c->ssl->last) {
|
|
|
639
|
|
|
640 case NGX_DONE:
|
|
|
641 c->read->ready = 0;
|
|
|
642 c->read->eof = 1;
|
|
|
643 return 0;
|
|
|
644
|
|
|
645 case NGX_ERROR:
|
|
|
646 c->read->error = 1;
|
|
|
647
|
|
|
648 /* fall thruogh */
|
|
|
649
|
|
|
650 case NGX_AGAIN:
|
|
126
|
651 return c->ssl->last;
|
|
28
|
652 }
|
|
38
|
653 }
|
|
|
654 }
|
|
|
655
|
|
|
656
|
|
|
657 static ngx_int_t
|
|
|
658 ngx_ssl_handle_recv(ngx_connection_t *c, int n)
|
|
|
659 {
|
|
96
|
660 int sslerr;
|
|
|
661 ngx_err_t err;
|
|
38
|
662
|
|
|
663 if (n > 0) {
|
|
28
|
664
|
|
22
|
665 if (c->ssl->saved_write_handler) {
|
|
|
666
|
|
58
|
667 c->write->handler = c->ssl->saved_write_handler;
|
|
22
|
668 c->ssl->saved_write_handler = NULL;
|
|
|
669 c->write->ready = 1;
|
|
|
670
|
|
|
671 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
672 return NGX_ERROR;
|
|
|
673 }
|
|
|
674
|
|
112
|
675 ngx_post_event(c->write, &ngx_posted_events);
|
|
22
|
676 }
|
|
|
677
|
|
38
|
678 return NGX_OK;
|
|
0
|
679 }
|
|
|
680
|
|
92
|
681 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
682
|
|
|
683 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
684
|
|
|
685 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
686
|
|
|
687 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
4
|
688 c->read->ready = 0;
|
|
0
|
689 return NGX_AGAIN;
|
|
|
690 }
|
|
|
691
|
|
|
692 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
88
|
693
|
|
96
|
694 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
695 "peer started SSL renegotiation");
|
|
22
|
696
|
|
|
697 c->write->ready = 0;
|
|
|
698
|
|
|
699 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
700 return NGX_ERROR;
|
|
|
701 }
|
|
|
702
|
|
|
703 /*
|
|
|
704 * we do not set the timer because there is already the read event timer
|
|
|
705 */
|
|
|
706
|
|
|
707 if (c->ssl->saved_write_handler == NULL) {
|
|
58
|
708 c->ssl->saved_write_handler = c->write->handler;
|
|
|
709 c->write->handler = ngx_ssl_write_handler;
|
|
22
|
710 }
|
|
|
711
|
|
0
|
712 return NGX_AGAIN;
|
|
|
713 }
|
|
|
714
|
|
96
|
715 c->ssl->no_wait_shutdown = 1;
|
|
|
716 c->ssl->no_send_shutdown = 1;
|
|
0
|
717
|
|
|
718 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
126
|
719 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
720 "peer shutdown SSL cleanly");
|
|
|
721 return NGX_DONE;
|
|
0
|
722 }
|
|
|
723
|
|
96
|
724 ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");
|
|
0
|
725
|
|
|
726 return NGX_ERROR;
|
|
|
727 }
|
|
|
728
|
|
|
729
|
|
38
|
730 static void
|
|
|
731 ngx_ssl_write_handler(ngx_event_t *wev)
|
|
22
|
732 {
|
|
|
733 ngx_connection_t *c;
|
|
|
734
|
|
|
735 c = wev->data;
|
|
96
|
736
|
|
58
|
737 c->read->handler(c->read);
|
|
22
|
738 }
|
|
|
739
|
|
|
740
|
|
0
|
741 /*
|
|
|
742 * OpenSSL has no SSL_writev() so we copy several bufs into our 16K buffer
|
|
22
|
743 * before the SSL_write() call to decrease a SSL overhead.
|
|
0
|
744 *
|
|
|
745 * Besides for protocols such as HTTP it is possible to always buffer
|
|
|
746 * the output to decrease a SSL overhead some more.
|
|
|
747 */
|
|
|
748
|
|
38
|
749 ngx_chain_t *
|
|
|
750 ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
|
|
0
|
751 {
|
|
|
752 int n;
|
|
|
753 ngx_uint_t flush;
|
|
|
754 ssize_t send, size;
|
|
|
755 ngx_buf_t *buf;
|
|
|
756
|
|
146
|
757 if (!c->ssl->buffer
|
|
|
758 || (in && in->next == NULL && !(c->buffered & NGX_SSL_BUFFERED)))
|
|
|
759 {
|
|
0
|
760 /*
|
|
126
|
761 * we avoid a buffer copy if
|
|
|
762 * we do not need to buffer the output
|
|
|
763 * or the incoming buf is a single and our buffer is empty
|
|
0
|
764 */
|
|
|
765
|
|
126
|
766 while (in) {
|
|
|
767 if (ngx_buf_special(in->buf)) {
|
|
|
768 in = in->next;
|
|
|
769 continue;
|
|
|
770 }
|
|
0
|
771
|
|
126
|
772 n = ngx_ssl_write(c, in->buf->pos, in->buf->last - in->buf->pos);
|
|
|
773
|
|
|
774 if (n == NGX_ERROR) {
|
|
|
775 return NGX_CHAIN_ERROR;
|
|
|
776 }
|
|
0
|
777
|
|
126
|
778 if (n == NGX_AGAIN) {
|
|
146
|
779 c->buffered |= NGX_SSL_BUFFERED;
|
|
126
|
780 return in;
|
|
|
781 }
|
|
|
782
|
|
|
783 in->buf->pos += n;
|
|
|
784
|
|
|
785 if (in->buf->pos == in->buf->last) {
|
|
|
786 in = in->next;
|
|
|
787 }
|
|
0
|
788 }
|
|
|
789
|
|
|
790 return in;
|
|
|
791 }
|
|
|
792
|
|
22
|
793
|
|
|
794 /* the maximum limit size is the maximum uint32_t value - the page size */
|
|
|
795
|
|
324
|
796 if (limit == 0 || limit > (off_t) (NGX_MAX_UINT32_VALUE - ngx_pagesize)) {
|
|
22
|
797 limit = NGX_MAX_UINT32_VALUE - ngx_pagesize;
|
|
|
798 }
|
|
|
799
|
|
126
|
800 buf = c->ssl->buf;
|
|
358
|
801
|
|
|
802 if (buf == NULL) {
|
|
|
803 buf = ngx_create_temp_buf(c->pool, NGX_SSL_BUFSIZE);
|
|
|
804 if (buf == NULL) {
|
|
|
805 return NGX_CHAIN_ERROR;
|
|
|
806 }
|
|
|
807
|
|
|
808 c->ssl->buf = buf;
|
|
|
809 }
|
|
|
810
|
|
|
811 if (buf->start == NULL) {
|
|
|
812 buf->start = ngx_palloc(c->pool, NGX_SSL_BUFSIZE);
|
|
|
813 if (buf->start == NULL) {
|
|
|
814 return NGX_CHAIN_ERROR;
|
|
|
815 }
|
|
|
816
|
|
|
817 buf->pos = buf->start;
|
|
|
818 buf->last = buf->start;
|
|
|
819 buf->end = buf->start + NGX_SSL_BUFSIZE;
|
|
|
820 }
|
|
|
821
|
|
0
|
822 send = 0;
|
|
|
823 flush = (in == NULL) ? 1 : 0;
|
|
|
824
|
|
|
825 for ( ;; ) {
|
|
|
826
|
|
|
827 while (in && buf->last < buf->end) {
|
|
132
|
828 if (in->buf->last_buf || in->buf->flush) {
|
|
0
|
829 flush = 1;
|
|
|
830 }
|
|
|
831
|
|
|
832 if (ngx_buf_special(in->buf)) {
|
|
|
833 in = in->next;
|
|
|
834 continue;
|
|
|
835 }
|
|
|
836
|
|
|
837 size = in->buf->last - in->buf->pos;
|
|
|
838
|
|
|
839 if (size > buf->end - buf->last) {
|
|
|
840 size = buf->end - buf->last;
|
|
|
841 }
|
|
|
842
|
|
|
843 if (send + size > limit) {
|
|
126
|
844 size = (ssize_t) (limit - send);
|
|
0
|
845 flush = 1;
|
|
|
846 }
|
|
|
847
|
|
|
848 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
849 "SSL buf copy: %d", size);
|
|
|
850
|
|
|
851 ngx_memcpy(buf->last, in->buf->pos, size);
|
|
|
852
|
|
|
853 buf->last += size;
|
|
|
854
|
|
|
855 in->buf->pos += size;
|
|
126
|
856
|
|
0
|
857 if (in->buf->pos == in->buf->last) {
|
|
|
858 in = in->next;
|
|
|
859 }
|
|
|
860 }
|
|
|
861
|
|
|
862 size = buf->last - buf->pos;
|
|
|
863
|
|
|
864 if (!flush && buf->last < buf->end && c->ssl->buffer) {
|
|
|
865 break;
|
|
|
866 }
|
|
|
867
|
|
|
868 n = ngx_ssl_write(c, buf->pos, size);
|
|
|
869
|
|
|
870 if (n == NGX_ERROR) {
|
|
|
871 return NGX_CHAIN_ERROR;
|
|
|
872 }
|
|
|
873
|
|
60
|
874 if (n == NGX_AGAIN) {
|
|
146
|
875 c->buffered |= NGX_SSL_BUFFERED;
|
|
60
|
876 return in;
|
|
0
|
877 }
|
|
|
878
|
|
|
879 buf->pos += n;
|
|
|
880 send += n;
|
|
|
881 c->sent += n;
|
|
|
882
|
|
|
883 if (n < size) {
|
|
|
884 break;
|
|
|
885 }
|
|
|
886
|
|
|
887 if (buf->pos == buf->last) {
|
|
|
888 buf->pos = buf->start;
|
|
|
889 buf->last = buf->start;
|
|
|
890 }
|
|
|
891
|
|
|
892 if (in == NULL || send == limit) {
|
|
|
893 break;
|
|
|
894 }
|
|
|
895 }
|
|
|
896
|
|
146
|
897 if (buf->pos < buf->last) {
|
|
|
898 c->buffered |= NGX_SSL_BUFFERED;
|
|
|
899
|
|
|
900 } else {
|
|
|
901 c->buffered &= ~NGX_SSL_BUFFERED;
|
|
|
902 }
|
|
0
|
903
|
|
|
904 return in;
|
|
|
905 }
|
|
|
906
|
|
|
907
|
|
88
|
908 ssize_t
|
|
38
|
909 ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size)
|
|
0
|
910 {
|
|
96
|
911 int n, sslerr;
|
|
|
912 ngx_err_t err;
|
|
0
|
913
|
|
358
|
914 ngx_ssl_clear_error(c->log);
|
|
|
915
|
|
0
|
916 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %d", size);
|
|
|
917
|
|
92
|
918 n = SSL_write(c->ssl->connection, data, size);
|
|
0
|
919
|
|
|
920 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_write: %d", n);
|
|
|
921
|
|
|
922 if (n > 0) {
|
|
88
|
923
|
|
22
|
924 if (c->ssl->saved_read_handler) {
|
|
|
925
|
|
58
|
926 c->read->handler = c->ssl->saved_read_handler;
|
|
22
|
927 c->ssl->saved_read_handler = NULL;
|
|
|
928 c->read->ready = 1;
|
|
|
929
|
|
|
930 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
931 return NGX_ERROR;
|
|
|
932 }
|
|
|
933
|
|
112
|
934 ngx_post_event(c->read, &ngx_posted_events);
|
|
22
|
935 }
|
|
|
936
|
|
0
|
937 return n;
|
|
|
938 }
|
|
|
939
|
|
92
|
940 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
941
|
|
|
942 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
943
|
|
|
944 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
945
|
|
|
946 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
947 c->write->ready = 0;
|
|
|
948 return NGX_AGAIN;
|
|
|
949 }
|
|
|
950
|
|
|
951 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
2
|
952
|
|
96
|
953 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
954 "peer started SSL renegotiation");
|
|
22
|
955
|
|
|
956 c->read->ready = 0;
|
|
|
957
|
|
|
958 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
959 return NGX_ERROR;
|
|
|
960 }
|
|
|
961
|
|
|
962 /*
|
|
|
963 * we do not set the timer because there is already
|
|
|
964 * the write event timer
|
|
|
965 */
|
|
|
966
|
|
|
967 if (c->ssl->saved_read_handler == NULL) {
|
|
58
|
968 c->ssl->saved_read_handler = c->read->handler;
|
|
|
969 c->read->handler = ngx_ssl_read_handler;
|
|
22
|
970 }
|
|
|
971
|
|
0
|
972 return NGX_AGAIN;
|
|
|
973 }
|
|
|
974
|
|
96
|
975 c->ssl->no_wait_shutdown = 1;
|
|
|
976 c->ssl->no_send_shutdown = 1;
|
|
140
|
977 c->write->error = 1;
|
|
92
|
978
|
|
96
|
979 ngx_ssl_connection_error(c, sslerr, err, "SSL_write() failed");
|
|
0
|
980
|
|
|
981 return NGX_ERROR;
|
|
|
982 }
|
|
|
983
|
|
|
984
|
|
38
|
985 static void
|
|
|
986 ngx_ssl_read_handler(ngx_event_t *rev)
|
|
22
|
987 {
|
|
|
988 ngx_connection_t *c;
|
|
|
989
|
|
|
990 c = rev->data;
|
|
96
|
991
|
|
58
|
992 c->write->handler(c->write);
|
|
22
|
993 }
|
|
|
994
|
|
|
995
|
|
358
|
996 void
|
|
|
997 ngx_ssl_free_buffer(ngx_connection_t *c)
|
|
|
998 {
|
|
|
999 if (ngx_pfree(c->pool, c->ssl->buf->start) == NGX_OK) {
|
|
|
1000 c->ssl->buf->start = NULL;
|
|
|
1001 }
|
|
|
1002 }
|
|
|
1003
|
|
|
1004
|
|
38
|
1005 ngx_int_t
|
|
|
1006 ngx_ssl_shutdown(ngx_connection_t *c)
|
|
0
|
1007 {
|
|
358
|
1008 int n, sslerr, mode;
|
|
|
1009 ngx_err_t err;
|
|
0
|
1010
|
|
126
|
1011 if (c->timedout) {
|
|
96
|
1012 mode = SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN;
|
|
0
|
1013
|
|
96
|
1014 } else {
|
|
|
1015 mode = SSL_get_shutdown(c->ssl->connection);
|
|
22
|
1016
|
|
96
|
1017 if (c->ssl->no_wait_shutdown) {
|
|
|
1018 mode |= SSL_RECEIVED_SHUTDOWN;
|
|
0
|
1019 }
|
|
|
1020
|
|
96
|
1021 if (c->ssl->no_send_shutdown) {
|
|
|
1022 mode |= SSL_SENT_SHUTDOWN;
|
|
0
|
1023 }
|
|
|
1024 }
|
|
|
1025
|
|
96
|
1026 SSL_set_shutdown(c->ssl->connection, mode);
|
|
|
1027
|
|
358
|
1028 ngx_ssl_clear_error(c->log);
|
|
|
1029
|
|
|
1030 n = SSL_shutdown(c->ssl->connection);
|
|
|
1031
|
|
|
1032 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_shutdown: %d", n);
|
|
|
1033
|
|
10
|
1034 sslerr = 0;
|
|
0
|
1035
|
|
358
|
1036 /* SSL_shutdown() never return -1, on error it return 0 */
|
|
|
1037
|
|
|
1038 if (n != 1) {
|
|
92
|
1039 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
1040
|
|
|
1041 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1042 "SSL_get_error: %d", sslerr);
|
|
|
1043 }
|
|
|
1044
|
|
358
|
1045 if (n == 1
|
|
|
1046 || sslerr == SSL_ERROR_ZERO_RETURN
|
|
|
1047 || (sslerr == 0 && c->timedout))
|
|
138
|
1048 {
|
|
358
|
1049 SSL_free(c->ssl->connection);
|
|
|
1050 c->ssl = NULL;
|
|
|
1051
|
|
|
1052 return NGX_OK;
|
|
|
1053 }
|
|
|
1054
|
|
|
1055 if (sslerr == SSL_ERROR_WANT_READ || sslerr == SSL_ERROR_WANT_WRITE) {
|
|
126
|
1056 c->read->handler = ngx_ssl_shutdown_handler;
|
|
138
|
1057 c->write->handler = ngx_ssl_shutdown_handler;
|
|
126
|
1058
|
|
0
|
1059 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
1060 return NGX_ERROR;
|
|
|
1061 }
|
|
|
1062
|
|
|
1063 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
1064 return NGX_ERROR;
|
|
|
1065 }
|
|
|
1066
|
|
358
|
1067 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
138
|
1068 ngx_add_timer(c->read, 30000);
|
|
|
1069 }
|
|
|
1070
|
|
0
|
1071 return NGX_AGAIN;
|
|
|
1072 }
|
|
|
1073
|
|
140
|
1074 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
1075
|
|
|
1076 ngx_ssl_connection_error(c, sslerr, err, "SSL_shutdown() failed");
|
|
0
|
1077
|
|
92
|
1078 SSL_free(c->ssl->connection);
|
|
|
1079 c->ssl = NULL;
|
|
|
1080
|
|
0
|
1081 return NGX_ERROR;
|
|
|
1082 }
|
|
|
1083
|
|
|
1084
|
|
96
|
1085 static void
|
|
126
|
1086 ngx_ssl_shutdown_handler(ngx_event_t *ev)
|
|
|
1087 {
|
|
|
1088 ngx_connection_t *c;
|
|
|
1089 ngx_connection_handler_pt handler;
|
|
|
1090
|
|
|
1091 c = ev->data;
|
|
|
1092 handler = c->ssl->handler;
|
|
|
1093
|
|
|
1094 if (ev->timedout) {
|
|
|
1095 c->timedout = 1;
|
|
|
1096 }
|
|
|
1097
|
|
272
|
1098 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "SSL shutdown handler");
|
|
126
|
1099
|
|
|
1100 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
1101 return;
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 handler(c);
|
|
|
1105 }
|
|
|
1106
|
|
|
1107
|
|
|
1108 static void
|
|
96
|
1109 ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
|
|
|
1110 char *text)
|
|
|
1111 {
|
|
|
1112 ngx_uint_t level;
|
|
|
1113
|
|
|
1114 level = NGX_LOG_CRIT;
|
|
|
1115
|
|
|
1116 if (sslerr == SSL_ERROR_SYSCALL) {
|
|
|
1117
|
|
|
1118 if (err == NGX_ECONNRESET
|
|
|
1119 || err == NGX_EPIPE
|
|
|
1120 || err == NGX_ENOTCONN
|
|
138
|
1121 #if !(NGX_CRIT_ETIMEDOUT)
|
|
|
1122 || err == NGX_ETIMEDOUT
|
|
|
1123 #endif
|
|
96
|
1124 || err == NGX_ECONNREFUSED
|
|
|
1125 || err == NGX_EHOSTUNREACH)
|
|
|
1126 {
|
|
|
1127 switch (c->log_error) {
|
|
|
1128
|
|
|
1129 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1130 case NGX_ERROR_INFO:
|
|
|
1131 level = NGX_LOG_INFO;
|
|
|
1132 break;
|
|
|
1133
|
|
|
1134 case NGX_ERROR_ERR:
|
|
|
1135 level = NGX_LOG_ERR;
|
|
|
1136 break;
|
|
|
1137
|
|
|
1138 default:
|
|
|
1139 break;
|
|
|
1140 }
|
|
|
1141 }
|
|
|
1142 }
|
|
|
1143
|
|
|
1144 ngx_ssl_error(level, c->log, err, text);
|
|
|
1145 }
|
|
|
1146
|
|
|
1147
|
|
358
|
1148 static void
|
|
|
1149 ngx_ssl_clear_error(ngx_log_t *log)
|
|
|
1150 {
|
|
|
1151 if (ERR_peek_error()) {
|
|
|
1152 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "ignoring stale global SSL error");
|
|
|
1153 }
|
|
|
1154 }
|
|
|
1155
|
|
|
1156
|
|
132
|
1157 void ngx_cdecl
|
|
38
|
1158 ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, char *fmt, ...)
|
|
126
|
1159 {
|
|
96
|
1160 u_long n;
|
|
|
1161 va_list args;
|
|
10
|
1162 u_char errstr[NGX_MAX_CONF_ERRSTR], *p, *last;
|
|
|
1163
|
|
|
1164 last = errstr + NGX_MAX_CONF_ERRSTR;
|
|
0
|
1165
|
|
|
1166 va_start(args, fmt);
|
|
10
|
1167 p = ngx_vsnprintf(errstr, sizeof(errstr) - 1, fmt, args);
|
|
0
|
1168 va_end(args);
|
|
|
1169
|
|
96
|
1170 p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);
|
|
|
1171
|
|
132
|
1172 while (p < last) {
|
|
|
1173
|
|
|
1174 n = ERR_get_error();
|
|
|
1175
|
|
|
1176 if (n == 0) {
|
|
|
1177 break;
|
|
|
1178 }
|
|
96
|
1179
|
|
|
1180 *p++ = ' ';
|
|
0
|
1181
|
|
96
|
1182 ERR_error_string_n(n, (char *) p, last - p);
|
|
|
1183
|
|
|
1184 while (p < last && *p) {
|
|
|
1185 p++;
|
|
|
1186 }
|
|
|
1187 }
|
|
0
|
1188
|
|
|
1189 ngx_log_error(level, log, err, "%s)", errstr);
|
|
|
1190 }
|
|
58
|
1191
|
|
|
1192
|
|
272
|
1193 ngx_int_t
|
|
|
1194 ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
|
|
|
1195 ssize_t builtin_session_cache, ngx_shm_zone_t *shm_zone, time_t timeout)
|
|
|
1196 {
|
|
|
1197 long cache_mode;
|
|
|
1198
|
|
358
|
1199 if (builtin_session_cache == NGX_SSL_NO_SCACHE) {
|
|
|
1200 SSL_CTX_set_session_cache_mode(ssl->ctx, SSL_SESS_CACHE_OFF);
|
|
|
1201 return NGX_OK;
|
|
|
1202 }
|
|
|
1203
|
|
272
|
1204 cache_mode = SSL_SESS_CACHE_SERVER;
|
|
|
1205
|
|
|
1206 if (shm_zone && builtin_session_cache == NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1207 cache_mode |= SSL_SESS_CACHE_NO_INTERNAL;
|
|
|
1208 }
|
|
|
1209
|
|
|
1210 SSL_CTX_set_session_cache_mode(ssl->ctx, cache_mode);
|
|
|
1211
|
|
|
1212 SSL_CTX_set_session_id_context(ssl->ctx, sess_ctx->data, sess_ctx->len);
|
|
|
1213
|
|
|
1214 if (builtin_session_cache != NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1215
|
|
|
1216 if (builtin_session_cache != NGX_SSL_DFLT_BUILTIN_SCACHE) {
|
|
|
1217 SSL_CTX_sess_set_cache_size(ssl->ctx, builtin_session_cache);
|
|
|
1218 }
|
|
|
1219 }
|
|
|
1220
|
|
274
|
1221 SSL_CTX_set_timeout(ssl->ctx, timeout);
|
|
|
1222
|
|
272
|
1223 if (shm_zone) {
|
|
|
1224 shm_zone->init = ngx_ssl_session_cache_init;
|
|
|
1225
|
|
|
1226 SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_session);
|
|
|
1227 SSL_CTX_sess_set_get_cb(ssl->ctx, ngx_ssl_get_cached_session);
|
|
|
1228 SSL_CTX_sess_set_remove_cb(ssl->ctx, ngx_ssl_remove_session);
|
|
|
1229
|
|
|
1230 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_session_cache_index, shm_zone)
|
|
|
1231 == 0)
|
|
|
1232 {
|
|
|
1233 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
1234 "SSL_CTX_set_ex_data() failed");
|
|
|
1235 return NGX_ERROR;
|
|
|
1236 }
|
|
|
1237 }
|
|
|
1238
|
|
|
1239 return NGX_OK;
|
|
|
1240 }
|
|
|
1241
|
|
|
1242
|
|
|
1243 static ngx_int_t
|
|
|
1244 ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
|
|
|
1245 {
|
|
|
1246 ngx_slab_pool_t *shpool;
|
|
|
1247 ngx_ssl_session_cache_t *cache;
|
|
|
1248
|
|
|
1249 if (data) {
|
|
|
1250 shm_zone->data = data;
|
|
|
1251 return NGX_OK;
|
|
|
1252 }
|
|
|
1253
|
|
|
1254 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1255
|
|
|
1256 cache = ngx_slab_alloc(shpool, sizeof(ngx_ssl_session_cache_t));
|
|
|
1257 if (cache == NULL) {
|
|
|
1258 return NGX_ERROR;
|
|
|
1259 }
|
|
|
1260
|
|
358
|
1261 ngx_rbtree_init(&cache->session_rbtree, &cache->sentinel,
|
|
356
|
1262 ngx_ssl_session_rbtree_insert_value);
|
|
272
|
1263
|
|
358
|
1264 ngx_queue_init(&cache->expire_queue);
|
|
|
1265
|
|
272
|
1266 shm_zone->data = cache;
|
|
|
1267
|
|
|
1268 return NGX_OK;
|
|
|
1269 }
|
|
|
1270
|
|
|
1271
|
|
|
1272 /*
|
|
274
|
1273 * The length of the session id is 16 bytes for SSLv2 sessions and
|
|
|
1274 * between 1 and 32 bytes for SSLv3/TLSv1, typically 32 bytes.
|
|
|
1275 * It seems that the typical length of the external ASN1 representation
|
|
|
1276 * of a session is 118 or 119 bytes for SSLv3/TSLv1.
|
|
|
1277 *
|
|
|
1278 * Thus on 32-bit platforms we allocate separately an rbtree node,
|
|
|
1279 * a session id, and an ASN1 representation, they take accordingly
|
|
|
1280 * 64, 32, and 128 bytes.
|
|
|
1281 *
|
|
|
1282 * On 64-bit platforms we allocate separately an rbtree node + session_id,
|
|
|
1283 * and an ASN1 representation, they take accordingly 128 and 128 bytes.
|
|
|
1284 *
|
|
272
|
1285 * OpenSSL's i2d_SSL_SESSION() and d2i_SSL_SESSION are slow,
|
|
|
1286 * so they are outside the code locked by shared pool mutex
|
|
|
1287 */
|
|
|
1288
|
|
|
1289 static int
|
|
|
1290 ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
|
|
|
1291 {
|
|
|
1292 int len;
|
|
274
|
1293 u_char *p, *id, *cached_sess;
|
|
272
|
1294 uint32_t hash;
|
|
|
1295 SSL_CTX *ssl_ctx;
|
|
|
1296 ngx_shm_zone_t *shm_zone;
|
|
|
1297 ngx_connection_t *c;
|
|
|
1298 ngx_slab_pool_t *shpool;
|
|
|
1299 ngx_ssl_sess_id_t *sess_id;
|
|
|
1300 ngx_ssl_session_cache_t *cache;
|
|
|
1301 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1302
|
|
|
1303 len = i2d_SSL_SESSION(sess, NULL);
|
|
|
1304
|
|
|
1305 /* do not cache too big session */
|
|
|
1306
|
|
|
1307 if (len > (int) NGX_SSL_MAX_SESSION_SIZE) {
|
|
|
1308 return 0;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311 p = buf;
|
|
|
1312 i2d_SSL_SESSION(sess, &p);
|
|
|
1313
|
|
|
1314 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1315
|
|
|
1316 ssl_ctx = SSL_get_SSL_CTX(ssl_conn);
|
|
|
1317 shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
|
|
|
1318
|
|
|
1319 cache = shm_zone->data;
|
|
|
1320 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1321
|
|
|
1322 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1323
|
|
|
1324 /* drop one or two expired sessions */
|
|
|
1325 ngx_ssl_expire_sessions(cache, shpool, 1);
|
|
|
1326
|
|
274
|
1327 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1328
|
|
|
1329 if (cached_sess == NULL) {
|
|
|
1330
|
|
|
1331 /* drop the oldest non-expired session and try once more */
|
|
|
1332
|
|
|
1333 ngx_ssl_expire_sessions(cache, shpool, 0);
|
|
|
1334
|
|
274
|
1335 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1336
|
|
|
1337 if (cached_sess == NULL) {
|
|
274
|
1338 sess_id = NULL;
|
|
272
|
1339 goto failed;
|
|
|
1340 }
|
|
|
1341 }
|
|
|
1342
|
|
|
1343 sess_id = ngx_slab_alloc_locked(shpool, sizeof(ngx_ssl_sess_id_t));
|
|
|
1344 if (sess_id == NULL) {
|
|
|
1345 goto failed;
|
|
|
1346 }
|
|
|
1347
|
|
274
|
1348 #if (NGX_PTR_SIZE == 8)
|
|
|
1349
|
|
|
1350 id = sess_id->sess_id;
|
|
|
1351
|
|
|
1352 #else
|
|
|
1353
|
|
|
1354 id = ngx_slab_alloc_locked(shpool, sess->session_id_length);
|
|
|
1355 if (id == NULL) {
|
|
|
1356 goto failed;
|
|
|
1357 }
|
|
|
1358
|
|
|
1359 #endif
|
|
|
1360
|
|
|
1361 ngx_memcpy(cached_sess, buf, len);
|
|
272
|
1362
|
|
|
1363 ngx_memcpy(id, sess->session_id, sess->session_id_length);
|
|
|
1364
|
|
|
1365 hash = ngx_crc32_short(sess->session_id, sess->session_id_length);
|
|
|
1366
|
|
|
1367 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1368 "http ssl new session: %08XD:%d:%d",
|
|
|
1369 hash, sess->session_id_length, len);
|
|
|
1370
|
|
|
1371 sess_id->node.key = hash;
|
|
|
1372 sess_id->node.data = (u_char) sess->session_id_length;
|
|
|
1373 sess_id->id = id;
|
|
|
1374 sess_id->len = len;
|
|
|
1375 sess_id->session = cached_sess;
|
|
|
1376
|
|
358
|
1377 sess_id->expire = ngx_time() + SSL_CTX_get_timeout(ssl_ctx);
|
|
|
1378
|
|
|
1379 ngx_queue_insert_head(&cache->expire_queue, &sess_id->queue);
|
|
|
1380
|
|
|
1381 ngx_rbtree_insert(&cache->session_rbtree, &sess_id->node);
|
|
272
|
1382
|
|
|
1383 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1384
|
|
|
1385 return 0;
|
|
|
1386
|
|
|
1387 failed:
|
|
|
1388
|
|
|
1389 if (cached_sess) {
|
|
|
1390 ngx_slab_free_locked(shpool, cached_sess);
|
|
|
1391 }
|
|
|
1392
|
|
274
|
1393 if (sess_id) {
|
|
|
1394 ngx_slab_free_locked(shpool, sess_id);
|
|
272
|
1395 }
|
|
|
1396
|
|
|
1397 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1398
|
|
|
1399 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1400 "could not add new SSL session to the session cache");
|
|
|
1401
|
|
|
1402 return 0;
|
|
|
1403 }
|
|
|
1404
|
|
|
1405
|
|
|
1406 static ngx_ssl_session_t *
|
|
|
1407 ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn, u_char *id, int len,
|
|
|
1408 int *copy)
|
|
|
1409 {
|
|
|
1410 #if OPENSSL_VERSION_NUMBER >= 0x0090707fL
|
|
|
1411 const
|
|
|
1412 #endif
|
|
|
1413 u_char *p;
|
|
|
1414 uint32_t hash;
|
|
274
|
1415 ngx_int_t rc;
|
|
272
|
1416 ngx_shm_zone_t *shm_zone;
|
|
|
1417 ngx_slab_pool_t *shpool;
|
|
|
1418 ngx_connection_t *c;
|
|
|
1419 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1420 ngx_ssl_session_t *sess;
|
|
|
1421 ngx_ssl_sess_id_t *sess_id;
|
|
|
1422 ngx_ssl_session_cache_t *cache;
|
|
|
1423 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1424
|
|
|
1425 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1426
|
|
274
|
1427 hash = ngx_crc32_short(id, (size_t) len);
|
|
272
|
1428 *copy = 0;
|
|
|
1429
|
|
|
1430 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1431 "http ssl get session: %08XD:%d", hash, len);
|
|
|
1432
|
|
|
1433 shm_zone = SSL_CTX_get_ex_data(SSL_get_SSL_CTX(ssl_conn),
|
|
|
1434 ngx_ssl_session_cache_index);
|
|
|
1435
|
|
|
1436 cache = shm_zone->data;
|
|
|
1437
|
|
|
1438 sess = NULL;
|
|
|
1439
|
|
|
1440 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1441
|
|
|
1442 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1443
|
|
358
|
1444 node = cache->session_rbtree.root;
|
|
|
1445 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1446
|
|
|
1447 while (node != sentinel) {
|
|
|
1448
|
|
|
1449 if (hash < node->key) {
|
|
|
1450 node = node->left;
|
|
|
1451 continue;
|
|
|
1452 }
|
|
|
1453
|
|
|
1454 if (hash > node->key) {
|
|
|
1455 node = node->right;
|
|
|
1456 continue;
|
|
|
1457 }
|
|
|
1458
|
|
274
|
1459 /* hash == node->key */
|
|
|
1460
|
|
|
1461 do {
|
|
272
|
1462 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1463
|
|
274
|
1464 rc = ngx_memn2cmp(id, sess_id->id,
|
|
|
1465 (size_t) len, (size_t) node->data);
|
|
|
1466 if (rc == 0) {
|
|
272
|
1467
|
|
358
|
1468 if (sess_id->expire > ngx_time()) {
|
|
274
|
1469 ngx_memcpy(buf, sess_id->session, sess_id->len);
|
|
272
|
1470
|
|
|
1471 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1472
|
|
|
1473 p = buf;
|
|
|
1474 sess = d2i_SSL_SESSION(NULL, &p, sess_id->len);
|
|
|
1475
|
|
|
1476 return sess;
|
|
|
1477 }
|
|
|
1478
|
|
358
|
1479 ngx_queue_remove(&sess_id->queue);
|
|
|
1480
|
|
|
1481 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1482
|
|
274
|
1483 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1484 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1485 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1486 #endif
|
|
272
|
1487 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1488
|
|
|
1489 sess = NULL;
|
|
|
1490
|
|
274
|
1491 goto done;
|
|
272
|
1492 }
|
|
274
|
1493
|
|
|
1494 node = (rc < 0) ? node->left : node->right;
|
|
|
1495
|
|
|
1496 } while (node != sentinel && hash == node->key);
|
|
|
1497
|
|
|
1498 break;
|
|
272
|
1499 }
|
|
|
1500
|
|
274
|
1501 done:
|
|
|
1502
|
|
272
|
1503 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1504
|
|
|
1505 return sess;
|
|
|
1506 }
|
|
|
1507
|
|
|
1508
|
|
|
1509 static void
|
|
|
1510 ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1511 {
|
|
274
|
1512 size_t len;
|
|
|
1513 u_char *id;
|
|
272
|
1514 uint32_t hash;
|
|
274
|
1515 ngx_int_t rc;
|
|
272
|
1516 ngx_shm_zone_t *shm_zone;
|
|
|
1517 ngx_slab_pool_t *shpool;
|
|
|
1518 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1519 ngx_ssl_sess_id_t *sess_id;
|
|
|
1520 ngx_ssl_session_cache_t *cache;
|
|
|
1521
|
|
|
1522 shm_zone = SSL_CTX_get_ex_data(ssl, ngx_ssl_session_cache_index);
|
|
|
1523
|
|
|
1524 cache = shm_zone->data;
|
|
|
1525
|
|
|
1526 id = sess->session_id;
|
|
274
|
1527 len = (size_t) sess->session_id_length;
|
|
|
1528
|
|
|
1529 hash = ngx_crc32_short(id, len);
|
|
272
|
1530
|
|
|
1531 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
274
|
1532 "http ssl remove session: %08XD:%uz", hash, len);
|
|
272
|
1533
|
|
|
1534 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1535
|
|
|
1536 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1537
|
|
358
|
1538 node = cache->session_rbtree.root;
|
|
|
1539 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1540
|
|
|
1541 while (node != sentinel) {
|
|
|
1542
|
|
|
1543 if (hash < node->key) {
|
|
|
1544 node = node->left;
|
|
|
1545 continue;
|
|
|
1546 }
|
|
|
1547
|
|
|
1548 if (hash > node->key) {
|
|
|
1549 node = node->right;
|
|
|
1550 continue;
|
|
|
1551 }
|
|
|
1552
|
|
274
|
1553 /* hash == node->key */
|
|
|
1554
|
|
|
1555 do {
|
|
272
|
1556 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1557
|
|
274
|
1558 rc = ngx_memn2cmp(id, sess_id->id, len, (size_t) node->data);
|
|
|
1559
|
|
|
1560 if (rc == 0) {
|
|
358
|
1561
|
|
|
1562 ngx_queue_remove(&sess_id->queue);
|
|
|
1563
|
|
|
1564 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1565
|
|
274
|
1566 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1567 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1568 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1569 #endif
|
|
272
|
1570 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1571
|
|
274
|
1572 goto done;
|
|
272
|
1573 }
|
|
274
|
1574
|
|
|
1575 node = (rc < 0) ? node->left : node->right;
|
|
|
1576
|
|
|
1577 } while (node != sentinel && hash == node->key);
|
|
|
1578
|
|
|
1579 break;
|
|
272
|
1580 }
|
|
|
1581
|
|
274
|
1582 done:
|
|
|
1583
|
|
272
|
1584 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1585 }
|
|
|
1586
|
|
|
1587
|
|
|
1588 static void
|
|
|
1589 ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
|
|
|
1590 ngx_slab_pool_t *shpool, ngx_uint_t n)
|
|
|
1591 {
|
|
358
|
1592 time_t now;
|
|
|
1593 ngx_queue_t *q;
|
|
274
|
1594 ngx_ssl_sess_id_t *sess_id;
|
|
272
|
1595
|
|
358
|
1596 now = ngx_time();
|
|
272
|
1597
|
|
|
1598 while (n < 3) {
|
|
|
1599
|
|
358
|
1600 if (ngx_queue_empty(&cache->expire_queue)) {
|
|
272
|
1601 return;
|
|
|
1602 }
|
|
|
1603
|
|
358
|
1604 q = ngx_queue_last(&cache->expire_queue);
|
|
|
1605
|
|
|
1606 sess_id = ngx_queue_data(q, ngx_ssl_sess_id_t, queue);
|
|
|
1607
|
|
|
1608 if (n++ != 0 && sess_id->expire > now) {
|
|
332
|
1609 return;
|
|
272
|
1610 }
|
|
|
1611
|
|
358
|
1612 ngx_queue_remove(q);
|
|
272
|
1613
|
|
|
1614 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
|
1615 "expire session: %08Xi", sess_id->node.key);
|
|
|
1616
|
|
358
|
1617 ngx_rbtree_delete(&cache->session_rbtree, &sess_id->node);
|
|
|
1618
|
|
274
|
1619 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1620 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1621 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1622 #endif
|
|
272
|
1623 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1624 }
|
|
|
1625 }
|
|
|
1626
|
|
|
1627
|
|
274
|
1628 static void
|
|
|
1629 ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
1630 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
1631 {
|
|
356
|
1632 ngx_rbtree_node_t **p;
|
|
|
1633 ngx_ssl_sess_id_t *sess_id, *sess_id_temp;
|
|
274
|
1634
|
|
|
1635 for ( ;; ) {
|
|
|
1636
|
|
|
1637 if (node->key < temp->key) {
|
|
|
1638
|
|
356
|
1639 p = &temp->left;
|
|
274
|
1640
|
|
|
1641 } else if (node->key > temp->key) {
|
|
|
1642
|
|
356
|
1643 p = &temp->right;
|
|
274
|
1644
|
|
|
1645 } else { /* node->key == temp->key */
|
|
|
1646
|
|
|
1647 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1648 sess_id_temp = (ngx_ssl_sess_id_t *) temp;
|
|
|
1649
|
|
356
|
1650 p = (ngx_memn2cmp(sess_id->id, sess_id_temp->id,
|
|
|
1651 (size_t) node->data, (size_t) temp->data)
|
|
|
1652 < 0) ? &temp->left : &temp->right;
|
|
274
|
1653 }
|
|
356
|
1654
|
|
|
1655 if (*p == sentinel) {
|
|
|
1656 break;
|
|
|
1657 }
|
|
|
1658
|
|
|
1659 temp = *p;
|
|
274
|
1660 }
|
|
|
1661
|
|
356
|
1662 *p = node;
|
|
274
|
1663 node->parent = temp;
|
|
|
1664 node->left = sentinel;
|
|
|
1665 node->right = sentinel;
|
|
|
1666 ngx_rbt_red(node);
|
|
276
|
1667 }
|
|
274
|
1668
|
|
|
1669
|
|
58
|
1670 void
|
|
|
1671 ngx_ssl_cleanup_ctx(void *data)
|
|
|
1672 {
|
|
138
|
1673 ngx_ssl_t *ssl = data;
|
|
58
|
1674
|
|
138
|
1675 SSL_CTX_free(ssl->ctx);
|
|
58
|
1676 }
|
|
90
|
1677
|
|
|
1678
|
|
220
|
1679 ngx_int_t
|
|
|
1680 ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1681 {
|
|
220
|
1682 s->data = (u_char *) SSL_get_version(c->ssl->connection);
|
|
|
1683 return NGX_OK;
|
|
160
|
1684 }
|
|
|
1685
|
|
|
1686
|
|
220
|
1687 ngx_int_t
|
|
|
1688 ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1689 {
|
|
220
|
1690 s->data = (u_char *) SSL_get_cipher_name(c->ssl->connection);
|
|
|
1691 return NGX_OK;
|
|
160
|
1692 }
|
|
|
1693
|
|
|
1694
|
|
196
|
1695 ngx_int_t
|
|
|
1696 ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1697 {
|
|
|
1698 char *p;
|
|
|
1699 size_t len;
|
|
|
1700 X509 *cert;
|
|
|
1701 X509_NAME *name;
|
|
|
1702
|
|
|
1703 s->len = 0;
|
|
|
1704
|
|
|
1705 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1706 if (cert == NULL) {
|
|
|
1707 return NGX_OK;
|
|
|
1708 }
|
|
|
1709
|
|
|
1710 name = X509_get_subject_name(cert);
|
|
|
1711 if (name == NULL) {
|
|
|
1712 return NGX_ERROR;
|
|
|
1713 }
|
|
|
1714
|
|
|
1715 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1716
|
|
|
1717 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1718
|
|
|
1719 s->len = len;
|
|
|
1720 s->data = ngx_palloc(pool, len);
|
|
|
1721 if (s->data == NULL) {
|
|
|
1722 OPENSSL_free(p);
|
|
|
1723 return NGX_ERROR;
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 ngx_memcpy(s->data, p, len);
|
|
|
1727
|
|
|
1728 OPENSSL_free(p);
|
|
|
1729
|
|
|
1730 return NGX_OK;
|
|
|
1731 }
|
|
|
1732
|
|
|
1733
|
|
|
1734 ngx_int_t
|
|
|
1735 ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1736 {
|
|
|
1737 char *p;
|
|
|
1738 size_t len;
|
|
|
1739 X509 *cert;
|
|
|
1740 X509_NAME *name;
|
|
|
1741
|
|
|
1742 s->len = 0;
|
|
|
1743
|
|
|
1744 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1745 if (cert == NULL) {
|
|
|
1746 return NGX_OK;
|
|
|
1747 }
|
|
|
1748
|
|
|
1749 name = X509_get_issuer_name(cert);
|
|
|
1750 if (name == NULL) {
|
|
|
1751 return NGX_ERROR;
|
|
|
1752 }
|
|
|
1753
|
|
|
1754 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1755
|
|
|
1756 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1757
|
|
|
1758 s->len = len;
|
|
|
1759 s->data = ngx_palloc(pool, len);
|
|
|
1760 if (s->data == NULL) {
|
|
|
1761 OPENSSL_free(p);
|
|
|
1762 return NGX_ERROR;
|
|
|
1763 }
|
|
|
1764
|
|
|
1765 ngx_memcpy(s->data, p, len);
|
|
|
1766
|
|
|
1767 OPENSSL_free(p);
|
|
|
1768
|
|
|
1769 return NGX_OK;
|
|
|
1770 }
|
|
|
1771
|
|
|
1772
|
|
220
|
1773 ngx_int_t
|
|
|
1774 ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1775 {
|
|
|
1776 size_t len;
|
|
|
1777 X509 *cert;
|
|
|
1778 BIO *bio;
|
|
|
1779
|
|
|
1780 s->len = 0;
|
|
|
1781
|
|
|
1782 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1783 if (cert == NULL) {
|
|
|
1784 return NGX_OK;
|
|
|
1785 }
|
|
|
1786
|
|
|
1787 bio = BIO_new(BIO_s_mem());
|
|
|
1788 if (bio == NULL) {
|
|
|
1789 return NGX_ERROR;
|
|
|
1790 }
|
|
|
1791
|
|
|
1792 i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
|
|
|
1793 len = BIO_pending(bio);
|
|
|
1794
|
|
|
1795 s->len = len;
|
|
|
1796 s->data = ngx_palloc(pool, len);
|
|
|
1797 if (s->data == NULL) {
|
|
|
1798 BIO_free(bio);
|
|
|
1799 return NGX_ERROR;
|
|
|
1800 }
|
|
|
1801
|
|
|
1802 BIO_read(bio, s->data, len);
|
|
|
1803 BIO_free(bio);
|
|
|
1804
|
|
|
1805 return NGX_OK;
|
|
|
1806 }
|
|
|
1807
|
|
|
1808
|
|
90
|
1809 static void *
|
|
|
1810 ngx_openssl_create_conf(ngx_cycle_t *cycle)
|
|
|
1811 {
|
|
|
1812 ngx_openssl_conf_t *oscf;
|
|
126
|
1813
|
|
90
|
1814 oscf = ngx_pcalloc(cycle->pool, sizeof(ngx_openssl_conf_t));
|
|
|
1815 if (oscf == NULL) {
|
|
|
1816 return NGX_CONF_ERROR;
|
|
|
1817 }
|
|
126
|
1818
|
|
90
|
1819 /*
|
|
|
1820 * set by ngx_pcalloc():
|
|
126
|
1821 *
|
|
90
|
1822 * oscf->engine.len = 0;
|
|
|
1823 * oscf->engine.data = NULL;
|
|
126
|
1824 */
|
|
90
|
1825
|
|
|
1826 return oscf;
|
|
|
1827 }
|
|
|
1828
|
|
|
1829
|
|
|
1830 static char *
|
|
|
1831 ngx_openssl_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
|
1832 {
|
|
|
1833 #if (NGX_SSL_ENGINE)
|
|
|
1834 ngx_openssl_conf_t *oscf = conf;
|
|
120
|
1835
|
|
90
|
1836 ENGINE *engine;
|
|
|
1837
|
|
|
1838 if (oscf->engine.len == 0) {
|
|
|
1839 return NGX_CONF_OK;
|
|
|
1840 }
|
|
126
|
1841
|
|
90
|
1842 engine = ENGINE_by_id((const char *) oscf->engine.data);
|
|
|
1843
|
|
|
1844 if (engine == NULL) {
|
|
|
1845 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1846 "ENGINE_by_id(\"%V\") failed", &oscf->engine);
|
|
|
1847 return NGX_CONF_ERROR;
|
|
|
1848 }
|
|
|
1849
|
|
|
1850 if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
|
|
|
1851 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1852 "ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
|
|
|
1853 &oscf->engine);
|
|
|
1854 return NGX_CONF_ERROR;
|
|
|
1855 }
|
|
|
1856
|
|
|
1857 ENGINE_free(engine);
|
|
|
1858
|
|
|
1859 #endif
|
|
|
1860
|
|
|
1861 return NGX_CONF_OK;
|
|
|
1862 }
|
|
|
1863
|
|
|
1864
|
|
|
1865 #if !(NGX_SSL_ENGINE)
|
|
|
1866
|
|
|
1867 static char *
|
|
|
1868 ngx_openssl_noengine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1869 {
|
|
|
1870 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
112
|
1871 "\"ssl_engine\" directive is available only in "
|
|
|
1872 "OpenSSL 0.9.7 and higher,");
|
|
90
|
1873
|
|
|
1874 return NGX_CONF_ERROR;
|
|
|
1875 }
|
|
|
1876
|
|
|
1877 #endif
|
|
120
|
1878
|
|
|
1879
|
|
|
1880 static void
|
|
|
1881 ngx_openssl_exit(ngx_cycle_t *cycle)
|
|
|
1882 {
|
|
|
1883 #if (NGX_SSL_ENGINE)
|
|
|
1884 ENGINE_cleanup();
|
|
|
1885 #endif
|
|
|
1886 }
|
