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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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364
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190 /*
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191 * we need this option because in ngx_ssl_send_chain()
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192 * we may switch to a buffered write and may copy leftover part of
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193 * previously unbuffered data to our internal buffer
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194 */
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195 SSL_CTX_set_mode(ssl->ctx, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
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196
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96
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197 SSL_CTX_set_read_ahead(ssl->ctx, 1);
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198
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199 return NGX_OK;
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200 }
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201
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202
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203 ngx_int_t
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112
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204 ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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205 ngx_str_t *key)
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96
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206 {
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324
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207 if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
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96
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208 return NGX_ERROR;
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209 }
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210
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112
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211 if (SSL_CTX_use_certificate_chain_file(ssl->ctx, (char *) cert->data)
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96
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212 == 0)
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213 {
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214 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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112
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215 "SSL_CTX_use_certificate_chain_file(\"%s\") failed",
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216 cert->data);
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217 return NGX_ERROR;
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218 }
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219
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324
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220 if (ngx_conf_full_name(cf->cycle, key, 1) == NGX_ERROR) {
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112
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221 return NGX_ERROR;
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222 }
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223
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224 if (SSL_CTX_use_PrivateKey_file(ssl->ctx, (char *) key->data,
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196
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225 SSL_FILETYPE_PEM)
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226 == 0)
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112
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227 {
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228 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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229 "SSL_CTX_use_PrivateKey_file(\"%s\") failed", key->data);
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96
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230 return NGX_ERROR;
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231 }
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232
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233 return NGX_OK;
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234 }
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235
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236
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237 ngx_int_t
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220
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238 ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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239 ngx_int_t depth)
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196
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240 {
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220
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241 STACK_OF(X509_NAME) *list;
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242
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243 SSL_CTX_set_verify(ssl->ctx, SSL_VERIFY_PEER, ngx_http_ssl_verify_callback);
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244
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245 SSL_CTX_set_verify_depth(ssl->ctx, depth);
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246
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247 if (cert->len == 0) {
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248 return NGX_OK;
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249 }
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250
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324
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251 if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
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196
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252 return NGX_ERROR;
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253 }
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254
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255 if (SSL_CTX_load_verify_locations(ssl->ctx, (char *) cert->data, NULL)
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256 == 0)
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257 {
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258 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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259 "SSL_CTX_load_verify_locations(\"%s\") failed",
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260 cert->data);
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261 return NGX_ERROR;
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262 }
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263
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220
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264 list = SSL_load_client_CA_file((char *) cert->data);
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265
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266 if (list == NULL) {
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267 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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268 "SSL_load_client_CA_file(\"%s\") failed", cert->data);
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269 return NGX_ERROR;
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270 }
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271
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272 /*
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273 * before 0.9.7h and 0.9.8 SSL_load_client_CA_file()
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274 * always leaved an error in the error queue
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275 */
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276
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277 ERR_clear_error();
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278
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279 SSL_CTX_set_client_CA_list(ssl->ctx, list);
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280
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196
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281 return NGX_OK;
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282 }
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283
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284
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220
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285 static int
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286 ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store)
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287 {
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288 char *subject, *issuer;
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289 int err, depth;
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290 X509 *cert;
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291 X509_NAME *name;
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292 ngx_connection_t *c;
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293 ngx_ssl_conn_t *ssl_conn;
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294
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295 ssl_conn = X509_STORE_CTX_get_ex_data(x509_store,
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296 SSL_get_ex_data_X509_STORE_CTX_idx());
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297
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298 c = ngx_ssl_get_connection(ssl_conn);
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299
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300 cert = X509_STORE_CTX_get_current_cert(x509_store);
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301 err = X509_STORE_CTX_get_error(x509_store);
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302 depth = X509_STORE_CTX_get_error_depth(x509_store);
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303
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304 name = X509_get_subject_name(cert);
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305 subject = name ? X509_NAME_oneline(name, NULL, 0) : "(none)";
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306
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307 name = X509_get_issuer_name(cert);
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308 issuer = name ? X509_NAME_oneline(name, NULL, 0) : "(none)";
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309
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272
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310 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
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220
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311 "verify:%d, error:%d, depth:%d, "
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312 "subject:\"%s\",issuer: \"%s\"",
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313 ok, err, depth, subject, issuer);
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314
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315 return 1;
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316 }
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317
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318
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196
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319 ngx_int_t
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96
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320 ngx_ssl_generate_rsa512_key(ngx_ssl_t *ssl)
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321 {
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220
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322 RSA *key;
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323
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108
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324 if (SSL_CTX_need_tmp_RSA(ssl->ctx) == 0) {
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325 return NGX_OK;
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326 }
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327
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220
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328 key = RSA_generate_key(512, RSA_F4, NULL, NULL);
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96
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329
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220
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330 if (key) {
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331 SSL_CTX_set_tmp_rsa(ssl->ctx, key);
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332
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333 RSA_free(key);
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334
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96
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335 return NGX_OK;
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336 }
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337
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338 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "RSA_generate_key(512) failed");
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339
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340 return NGX_ERROR;
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341 }
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342
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343
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344 ngx_int_t
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345 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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346 {
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96
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347 ngx_ssl_connection_t *sc;
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0
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348
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96
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349 sc = ngx_pcalloc(c->pool, sizeof(ngx_ssl_connection_t));
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350 if (sc == NULL) {
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0
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351 return NGX_ERROR;
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352 }
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353
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358
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354 sc->buffer = ((flags & NGX_SSL_BUFFER) != 0);
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0
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355
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96
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356 sc->connection = SSL_new(ssl->ctx);
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0
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357
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96
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358 if (sc->connection == NULL) {
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0
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359 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_new() failed");
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360 return NGX_ERROR;
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361 }
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362
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96
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363 if (SSL_set_fd(sc->connection, c->fd) == 0) {
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0
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364 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_fd() failed");
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365 return NGX_ERROR;
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366 }
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367
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126
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368 if (flags & NGX_SSL_CLIENT) {
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|
369 SSL_set_connect_state(sc->connection);
|
|
|
370
|
|
|
371 } else {
|
|
|
372 SSL_set_accept_state(sc->connection);
|
|
|
373 }
|
|
0
|
374
|
|
272
|
375 if (SSL_set_ex_data(sc->connection, ngx_ssl_connection_index, c) == 0) {
|
|
220
|
376 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
|
|
|
377 return NGX_ERROR;
|
|
|
378 }
|
|
|
379
|
|
96
|
380 c->ssl = sc;
|
|
0
|
381
|
|
|
382 return NGX_OK;
|
|
|
383 }
|
|
|
384
|
|
|
385
|
|
96
|
386 ngx_int_t
|
|
126
|
387 ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session)
|
|
|
388 {
|
|
|
389 if (session) {
|
|
|
390 if (SSL_set_session(c->ssl->connection, session) == 0) {
|
|
|
391 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_session() failed");
|
|
|
392 return NGX_ERROR;
|
|
|
393 }
|
|
|
394 }
|
|
|
395
|
|
|
396 return NGX_OK;
|
|
|
397 }
|
|
|
398
|
|
|
399
|
|
|
400 ngx_int_t
|
|
96
|
401 ngx_ssl_handshake(ngx_connection_t *c)
|
|
|
402 {
|
|
|
403 int n, sslerr;
|
|
|
404 ngx_err_t err;
|
|
|
405
|
|
358
|
406 ngx_ssl_clear_error(c->log);
|
|
|
407
|
|
96
|
408 n = SSL_do_handshake(c->ssl->connection);
|
|
|
409
|
|
126
|
410 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
|
|
96
|
411
|
|
|
412 if (n == 1) {
|
|
|
413
|
|
|
414 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
415 return NGX_ERROR;
|
|
|
416 }
|
|
|
417
|
|
|
418 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
419 return NGX_ERROR;
|
|
|
420 }
|
|
|
421
|
|
|
422 #if (NGX_DEBUG)
|
|
|
423 {
|
|
|
424 char buf[129], *s, *d;
|
|
|
425 SSL_CIPHER *cipher;
|
|
|
426
|
|
|
427 cipher = SSL_get_current_cipher(c->ssl->connection);
|
|
|
428
|
|
|
429 if (cipher) {
|
|
|
430 SSL_CIPHER_description(cipher, &buf[1], 128);
|
|
|
431
|
|
|
432 for (s = &buf[1], d = buf; *s; s++) {
|
|
|
433 if (*s == ' ' && *d == ' ') {
|
|
|
434 continue;
|
|
|
435 }
|
|
|
436
|
|
|
437 if (*s == LF || *s == CR) {
|
|
|
438 continue;
|
|
|
439 }
|
|
|
440
|
|
|
441 *++d = *s;
|
|
|
442 }
|
|
|
443
|
|
|
444 if (*d != ' ') {
|
|
|
445 d++;
|
|
|
446 }
|
|
|
447
|
|
|
448 *d = '\0';
|
|
|
449
|
|
132
|
450 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
451 "SSL: %s, cipher: \"%s\"",
|
|
126
|
452 SSL_get_version(c->ssl->connection), &buf[1]);
|
|
96
|
453
|
|
|
454 if (SSL_session_reused(c->ssl->connection)) {
|
|
132
|
455 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
456 "SSL reused session");
|
|
|
457 }
|
|
|
458
|
|
|
459 } else {
|
|
|
460 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
461 "SSL no shared ciphers");
|
|
96
|
462 }
|
|
|
463 }
|
|
|
464 #endif
|
|
|
465
|
|
|
466 c->ssl->handshaked = 1;
|
|
|
467
|
|
|
468 c->recv = ngx_ssl_recv;
|
|
|
469 c->send = ngx_ssl_write;
|
|
126
|
470 c->recv_chain = ngx_ssl_recv_chain;
|
|
|
471 c->send_chain = ngx_ssl_send_chain;
|
|
96
|
472
|
|
|
473 return NGX_OK;
|
|
|
474 }
|
|
|
475
|
|
|
476 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
477
|
|
|
478 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
479
|
|
|
480 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
481 c->read->ready = 0;
|
|
|
482 c->read->handler = ngx_ssl_handshake_handler;
|
|
140
|
483 c->write->handler = ngx_ssl_handshake_handler;
|
|
96
|
484
|
|
|
485 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
486 return NGX_ERROR;
|
|
|
487 }
|
|
|
488
|
|
|
489 return NGX_AGAIN;
|
|
|
490 }
|
|
|
491
|
|
|
492 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
493 c->write->ready = 0;
|
|
140
|
494 c->read->handler = ngx_ssl_handshake_handler;
|
|
96
|
495 c->write->handler = ngx_ssl_handshake_handler;
|
|
|
496
|
|
|
497 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
498 return NGX_ERROR;
|
|
|
499 }
|
|
|
500
|
|
|
501 return NGX_AGAIN;
|
|
|
502 }
|
|
|
503
|
|
|
504 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
505
|
|
|
506 c->ssl->no_wait_shutdown = 1;
|
|
|
507 c->ssl->no_send_shutdown = 1;
|
|
140
|
508 c->read->eof = 1;
|
|
96
|
509
|
|
|
510 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
|
511 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
126
|
512 "peer closed connection in SSL handshake");
|
|
96
|
513
|
|
|
514 return NGX_ERROR;
|
|
|
515 }
|
|
|
516
|
|
140
|
517 c->read->error = 1;
|
|
|
518
|
|
96
|
519 ngx_ssl_connection_error(c, sslerr, err, "SSL_do_handshake() failed");
|
|
|
520
|
|
|
521 return NGX_ERROR;
|
|
|
522 }
|
|
|
523
|
|
|
524
|
|
|
525 static void
|
|
|
526 ngx_ssl_handshake_handler(ngx_event_t *ev)
|
|
|
527 {
|
|
|
528 ngx_connection_t *c;
|
|
|
529
|
|
|
530 c = ev->data;
|
|
|
531
|
|
98
|
532 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
533 "SSL handshake handler: %d", ev->write);
|
|
96
|
534
|
|
140
|
535 if (ev->timedout) {
|
|
|
536 c->ssl->handler(c);
|
|
|
537 return;
|
|
|
538 }
|
|
|
539
|
|
96
|
540 if (ngx_ssl_handshake(c) == NGX_AGAIN) {
|
|
|
541 return;
|
|
|
542 }
|
|
|
543
|
|
|
544 c->ssl->handler(c);
|
|
|
545 }
|
|
|
546
|
|
|
547
|
|
38
|
548 ssize_t
|
|
126
|
549 ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl)
|
|
|
550 {
|
|
294
|
551 u_char *last;
|
|
126
|
552 ssize_t n, bytes;
|
|
|
553 ngx_buf_t *b;
|
|
|
554
|
|
|
555 bytes = 0;
|
|
|
556
|
|
294
|
557 b = cl->buf;
|
|
|
558 last = b->last;
|
|
|
559
|
|
|
560 for ( ;; ) {
|
|
|
561
|
|
|
562 n = ngx_ssl_recv(c, last, b->end - last);
|
|
126
|
563
|
|
|
564 if (n > 0) {
|
|
294
|
565 last += n;
|
|
126
|
566 bytes += n;
|
|
|
567
|
|
294
|
568 if (last == b->end) {
|
|
126
|
569 cl = cl->next;
|
|
294
|
570
|
|
|
571 if (cl == NULL) {
|
|
|
572 return bytes;
|
|
|
573 }
|
|
|
574
|
|
|
575 b = cl->buf;
|
|
|
576 last = b->last;
|
|
126
|
577 }
|
|
|
578
|
|
|
579 continue;
|
|
|
580 }
|
|
|
581
|
|
|
582 if (bytes) {
|
|
|
583 return bytes;
|
|
|
584 }
|
|
|
585
|
|
|
586 return n;
|
|
|
587 }
|
|
|
588 }
|
|
|
589
|
|
|
590
|
|
|
591 ssize_t
|
|
38
|
592 ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size)
|
|
0
|
593 {
|
|
38
|
594 int n, bytes;
|
|
|
595
|
|
|
596 if (c->ssl->last == NGX_ERROR) {
|
|
330
|
597 c->read->error = 1;
|
|
38
|
598 return NGX_ERROR;
|
|
|
599 }
|
|
|
600
|
|
126
|
601 if (c->ssl->last == NGX_DONE) {
|
|
330
|
602 c->read->ready = 0;
|
|
|
603 c->read->eof = 1;
|
|
126
|
604 return 0;
|
|
|
605 }
|
|
|
606
|
|
38
|
607 bytes = 0;
|
|
0
|
608
|
|
358
|
609 ngx_ssl_clear_error(c->log);
|
|
|
610
|
|
38
|
611 /*
|
|
|
612 * SSL_read() may return data in parts, so try to read
|
|
|
613 * until SSL_read() would return no data
|
|
|
614 */
|
|
|
615
|
|
|
616 for ( ;; ) {
|
|
0
|
617
|
|
92
|
618 n = SSL_read(c->ssl->connection, buf, size);
|
|
38
|
619
|
|
126
|
620 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_read: %d", n);
|
|
0
|
621
|
|
38
|
622 if (n > 0) {
|
|
|
623 bytes += n;
|
|
|
624 }
|
|
|
625
|
|
|
626 c->ssl->last = ngx_ssl_handle_recv(c, n);
|
|
|
627
|
|
330
|
628 if (c->ssl->last == NGX_OK) {
|
|
|
629
|
|
|
630 size -= n;
|
|
|
631
|
|
|
632 if (size == 0) {
|
|
38
|
633 return bytes;
|
|
126
|
634 }
|
|
38
|
635
|
|
330
|
636 buf += n;
|
|
|
637
|
|
|
638 continue;
|
|
|
639 }
|
|
|
640
|
|
|
641 if (bytes) {
|
|
|
642 return bytes;
|
|
|
643 }
|
|
|
644
|
|
|
645 switch (c->ssl->last) {
|
|
|
646
|
|
|
647 case NGX_DONE:
|
|
|
648 c->read->ready = 0;
|
|
|
649 c->read->eof = 1;
|
|
|
650 return 0;
|
|
|
651
|
|
|
652 case NGX_ERROR:
|
|
|
653 c->read->error = 1;
|
|
|
654
|
|
|
655 /* fall thruogh */
|
|
|
656
|
|
|
657 case NGX_AGAIN:
|
|
126
|
658 return c->ssl->last;
|
|
28
|
659 }
|
|
38
|
660 }
|
|
|
661 }
|
|
|
662
|
|
|
663
|
|
|
664 static ngx_int_t
|
|
|
665 ngx_ssl_handle_recv(ngx_connection_t *c, int n)
|
|
|
666 {
|
|
96
|
667 int sslerr;
|
|
|
668 ngx_err_t err;
|
|
38
|
669
|
|
|
670 if (n > 0) {
|
|
28
|
671
|
|
22
|
672 if (c->ssl->saved_write_handler) {
|
|
|
673
|
|
58
|
674 c->write->handler = c->ssl->saved_write_handler;
|
|
22
|
675 c->ssl->saved_write_handler = NULL;
|
|
|
676 c->write->ready = 1;
|
|
|
677
|
|
|
678 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
679 return NGX_ERROR;
|
|
|
680 }
|
|
|
681
|
|
112
|
682 ngx_post_event(c->write, &ngx_posted_events);
|
|
22
|
683 }
|
|
|
684
|
|
38
|
685 return NGX_OK;
|
|
0
|
686 }
|
|
|
687
|
|
92
|
688 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
689
|
|
|
690 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
691
|
|
|
692 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
693
|
|
|
694 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
4
|
695 c->read->ready = 0;
|
|
0
|
696 return NGX_AGAIN;
|
|
|
697 }
|
|
|
698
|
|
|
699 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
88
|
700
|
|
96
|
701 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
702 "peer started SSL renegotiation");
|
|
22
|
703
|
|
|
704 c->write->ready = 0;
|
|
|
705
|
|
|
706 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
707 return NGX_ERROR;
|
|
|
708 }
|
|
|
709
|
|
|
710 /*
|
|
|
711 * we do not set the timer because there is already the read event timer
|
|
|
712 */
|
|
|
713
|
|
|
714 if (c->ssl->saved_write_handler == NULL) {
|
|
58
|
715 c->ssl->saved_write_handler = c->write->handler;
|
|
|
716 c->write->handler = ngx_ssl_write_handler;
|
|
22
|
717 }
|
|
|
718
|
|
0
|
719 return NGX_AGAIN;
|
|
|
720 }
|
|
|
721
|
|
96
|
722 c->ssl->no_wait_shutdown = 1;
|
|
|
723 c->ssl->no_send_shutdown = 1;
|
|
0
|
724
|
|
|
725 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
126
|
726 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
727 "peer shutdown SSL cleanly");
|
|
|
728 return NGX_DONE;
|
|
0
|
729 }
|
|
|
730
|
|
96
|
731 ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");
|
|
0
|
732
|
|
|
733 return NGX_ERROR;
|
|
|
734 }
|
|
|
735
|
|
|
736
|
|
38
|
737 static void
|
|
|
738 ngx_ssl_write_handler(ngx_event_t *wev)
|
|
22
|
739 {
|
|
|
740 ngx_connection_t *c;
|
|
|
741
|
|
|
742 c = wev->data;
|
|
96
|
743
|
|
58
|
744 c->read->handler(c->read);
|
|
22
|
745 }
|
|
|
746
|
|
|
747
|
|
0
|
748 /*
|
|
|
749 * OpenSSL has no SSL_writev() so we copy several bufs into our 16K buffer
|
|
22
|
750 * before the SSL_write() call to decrease a SSL overhead.
|
|
0
|
751 *
|
|
|
752 * Besides for protocols such as HTTP it is possible to always buffer
|
|
|
753 * the output to decrease a SSL overhead some more.
|
|
|
754 */
|
|
|
755
|
|
38
|
756 ngx_chain_t *
|
|
|
757 ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
|
|
0
|
758 {
|
|
|
759 int n;
|
|
|
760 ngx_uint_t flush;
|
|
|
761 ssize_t send, size;
|
|
|
762 ngx_buf_t *buf;
|
|
|
763
|
|
146
|
764 if (!c->ssl->buffer
|
|
|
765 || (in && in->next == NULL && !(c->buffered & NGX_SSL_BUFFERED)))
|
|
|
766 {
|
|
0
|
767 /*
|
|
126
|
768 * we avoid a buffer copy if
|
|
|
769 * we do not need to buffer the output
|
|
|
770 * or the incoming buf is a single and our buffer is empty
|
|
0
|
771 */
|
|
|
772
|
|
126
|
773 while (in) {
|
|
|
774 if (ngx_buf_special(in->buf)) {
|
|
|
775 in = in->next;
|
|
|
776 continue;
|
|
|
777 }
|
|
0
|
778
|
|
126
|
779 n = ngx_ssl_write(c, in->buf->pos, in->buf->last - in->buf->pos);
|
|
|
780
|
|
|
781 if (n == NGX_ERROR) {
|
|
|
782 return NGX_CHAIN_ERROR;
|
|
|
783 }
|
|
0
|
784
|
|
126
|
785 if (n == NGX_AGAIN) {
|
|
146
|
786 c->buffered |= NGX_SSL_BUFFERED;
|
|
126
|
787 return in;
|
|
|
788 }
|
|
|
789
|
|
|
790 in->buf->pos += n;
|
|
|
791
|
|
|
792 if (in->buf->pos == in->buf->last) {
|
|
|
793 in = in->next;
|
|
|
794 }
|
|
0
|
795 }
|
|
|
796
|
|
|
797 return in;
|
|
|
798 }
|
|
|
799
|
|
22
|
800
|
|
|
801 /* the maximum limit size is the maximum uint32_t value - the page size */
|
|
|
802
|
|
324
|
803 if (limit == 0 || limit > (off_t) (NGX_MAX_UINT32_VALUE - ngx_pagesize)) {
|
|
22
|
804 limit = NGX_MAX_UINT32_VALUE - ngx_pagesize;
|
|
|
805 }
|
|
|
806
|
|
126
|
807 buf = c->ssl->buf;
|
|
358
|
808
|
|
|
809 if (buf == NULL) {
|
|
|
810 buf = ngx_create_temp_buf(c->pool, NGX_SSL_BUFSIZE);
|
|
|
811 if (buf == NULL) {
|
|
|
812 return NGX_CHAIN_ERROR;
|
|
|
813 }
|
|
|
814
|
|
|
815 c->ssl->buf = buf;
|
|
|
816 }
|
|
|
817
|
|
|
818 if (buf->start == NULL) {
|
|
|
819 buf->start = ngx_palloc(c->pool, NGX_SSL_BUFSIZE);
|
|
|
820 if (buf->start == NULL) {
|
|
|
821 return NGX_CHAIN_ERROR;
|
|
|
822 }
|
|
|
823
|
|
|
824 buf->pos = buf->start;
|
|
|
825 buf->last = buf->start;
|
|
|
826 buf->end = buf->start + NGX_SSL_BUFSIZE;
|
|
|
827 }
|
|
|
828
|
|
0
|
829 send = 0;
|
|
|
830 flush = (in == NULL) ? 1 : 0;
|
|
|
831
|
|
|
832 for ( ;; ) {
|
|
|
833
|
|
|
834 while (in && buf->last < buf->end) {
|
|
132
|
835 if (in->buf->last_buf || in->buf->flush) {
|
|
0
|
836 flush = 1;
|
|
|
837 }
|
|
|
838
|
|
|
839 if (ngx_buf_special(in->buf)) {
|
|
|
840 in = in->next;
|
|
|
841 continue;
|
|
|
842 }
|
|
|
843
|
|
|
844 size = in->buf->last - in->buf->pos;
|
|
|
845
|
|
|
846 if (size > buf->end - buf->last) {
|
|
|
847 size = buf->end - buf->last;
|
|
|
848 }
|
|
|
849
|
|
|
850 if (send + size > limit) {
|
|
126
|
851 size = (ssize_t) (limit - send);
|
|
0
|
852 flush = 1;
|
|
|
853 }
|
|
|
854
|
|
|
855 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
856 "SSL buf copy: %d", size);
|
|
|
857
|
|
|
858 ngx_memcpy(buf->last, in->buf->pos, size);
|
|
|
859
|
|
|
860 buf->last += size;
|
|
|
861
|
|
|
862 in->buf->pos += size;
|
|
126
|
863
|
|
0
|
864 if (in->buf->pos == in->buf->last) {
|
|
|
865 in = in->next;
|
|
|
866 }
|
|
|
867 }
|
|
|
868
|
|
|
869 size = buf->last - buf->pos;
|
|
|
870
|
|
|
871 if (!flush && buf->last < buf->end && c->ssl->buffer) {
|
|
|
872 break;
|
|
|
873 }
|
|
|
874
|
|
|
875 n = ngx_ssl_write(c, buf->pos, size);
|
|
|
876
|
|
|
877 if (n == NGX_ERROR) {
|
|
|
878 return NGX_CHAIN_ERROR;
|
|
|
879 }
|
|
|
880
|
|
60
|
881 if (n == NGX_AGAIN) {
|
|
146
|
882 c->buffered |= NGX_SSL_BUFFERED;
|
|
60
|
883 return in;
|
|
0
|
884 }
|
|
|
885
|
|
|
886 buf->pos += n;
|
|
|
887 send += n;
|
|
|
888 c->sent += n;
|
|
|
889
|
|
|
890 if (n < size) {
|
|
|
891 break;
|
|
|
892 }
|
|
|
893
|
|
|
894 if (buf->pos == buf->last) {
|
|
|
895 buf->pos = buf->start;
|
|
|
896 buf->last = buf->start;
|
|
|
897 }
|
|
|
898
|
|
|
899 if (in == NULL || send == limit) {
|
|
|
900 break;
|
|
|
901 }
|
|
|
902 }
|
|
|
903
|
|
146
|
904 if (buf->pos < buf->last) {
|
|
|
905 c->buffered |= NGX_SSL_BUFFERED;
|
|
|
906
|
|
|
907 } else {
|
|
|
908 c->buffered &= ~NGX_SSL_BUFFERED;
|
|
|
909 }
|
|
0
|
910
|
|
|
911 return in;
|
|
|
912 }
|
|
|
913
|
|
|
914
|
|
88
|
915 ssize_t
|
|
38
|
916 ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size)
|
|
0
|
917 {
|
|
96
|
918 int n, sslerr;
|
|
|
919 ngx_err_t err;
|
|
0
|
920
|
|
358
|
921 ngx_ssl_clear_error(c->log);
|
|
|
922
|
|
0
|
923 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %d", size);
|
|
|
924
|
|
92
|
925 n = SSL_write(c->ssl->connection, data, size);
|
|
0
|
926
|
|
|
927 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_write: %d", n);
|
|
|
928
|
|
|
929 if (n > 0) {
|
|
88
|
930
|
|
22
|
931 if (c->ssl->saved_read_handler) {
|
|
|
932
|
|
58
|
933 c->read->handler = c->ssl->saved_read_handler;
|
|
22
|
934 c->ssl->saved_read_handler = NULL;
|
|
|
935 c->read->ready = 1;
|
|
|
936
|
|
|
937 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
938 return NGX_ERROR;
|
|
|
939 }
|
|
|
940
|
|
112
|
941 ngx_post_event(c->read, &ngx_posted_events);
|
|
22
|
942 }
|
|
|
943
|
|
0
|
944 return n;
|
|
|
945 }
|
|
|
946
|
|
92
|
947 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
948
|
|
|
949 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
950
|
|
|
951 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
952
|
|
|
953 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
954 c->write->ready = 0;
|
|
|
955 return NGX_AGAIN;
|
|
|
956 }
|
|
|
957
|
|
|
958 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
2
|
959
|
|
96
|
960 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
961 "peer started SSL renegotiation");
|
|
22
|
962
|
|
|
963 c->read->ready = 0;
|
|
|
964
|
|
|
965 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
966 return NGX_ERROR;
|
|
|
967 }
|
|
|
968
|
|
|
969 /*
|
|
|
970 * we do not set the timer because there is already
|
|
|
971 * the write event timer
|
|
|
972 */
|
|
|
973
|
|
|
974 if (c->ssl->saved_read_handler == NULL) {
|
|
58
|
975 c->ssl->saved_read_handler = c->read->handler;
|
|
|
976 c->read->handler = ngx_ssl_read_handler;
|
|
22
|
977 }
|
|
|
978
|
|
0
|
979 return NGX_AGAIN;
|
|
|
980 }
|
|
|
981
|
|
96
|
982 c->ssl->no_wait_shutdown = 1;
|
|
|
983 c->ssl->no_send_shutdown = 1;
|
|
140
|
984 c->write->error = 1;
|
|
92
|
985
|
|
96
|
986 ngx_ssl_connection_error(c, sslerr, err, "SSL_write() failed");
|
|
0
|
987
|
|
|
988 return NGX_ERROR;
|
|
|
989 }
|
|
|
990
|
|
|
991
|
|
38
|
992 static void
|
|
|
993 ngx_ssl_read_handler(ngx_event_t *rev)
|
|
22
|
994 {
|
|
|
995 ngx_connection_t *c;
|
|
|
996
|
|
|
997 c = rev->data;
|
|
96
|
998
|
|
58
|
999 c->write->handler(c->write);
|
|
22
|
1000 }
|
|
|
1001
|
|
|
1002
|
|
358
|
1003 void
|
|
|
1004 ngx_ssl_free_buffer(ngx_connection_t *c)
|
|
|
1005 {
|
|
360
|
1006 if (c->ssl->buf && c->ssl->buf->start) {
|
|
|
1007 if (ngx_pfree(c->pool, c->ssl->buf->start) == NGX_OK) {
|
|
|
1008 c->ssl->buf->start = NULL;
|
|
|
1009 }
|
|
358
|
1010 }
|
|
|
1011 }
|
|
|
1012
|
|
|
1013
|
|
38
|
1014 ngx_int_t
|
|
|
1015 ngx_ssl_shutdown(ngx_connection_t *c)
|
|
0
|
1016 {
|
|
358
|
1017 int n, sslerr, mode;
|
|
|
1018 ngx_err_t err;
|
|
0
|
1019
|
|
126
|
1020 if (c->timedout) {
|
|
96
|
1021 mode = SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN;
|
|
0
|
1022
|
|
96
|
1023 } else {
|
|
|
1024 mode = SSL_get_shutdown(c->ssl->connection);
|
|
22
|
1025
|
|
96
|
1026 if (c->ssl->no_wait_shutdown) {
|
|
|
1027 mode |= SSL_RECEIVED_SHUTDOWN;
|
|
0
|
1028 }
|
|
|
1029
|
|
96
|
1030 if (c->ssl->no_send_shutdown) {
|
|
|
1031 mode |= SSL_SENT_SHUTDOWN;
|
|
0
|
1032 }
|
|
|
1033 }
|
|
|
1034
|
|
96
|
1035 SSL_set_shutdown(c->ssl->connection, mode);
|
|
|
1036
|
|
358
|
1037 ngx_ssl_clear_error(c->log);
|
|
|
1038
|
|
|
1039 n = SSL_shutdown(c->ssl->connection);
|
|
|
1040
|
|
|
1041 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_shutdown: %d", n);
|
|
|
1042
|
|
10
|
1043 sslerr = 0;
|
|
0
|
1044
|
|
364
|
1045 /* SSL_shutdown() never returns -1, on error it returns 0 */
|
|
|
1046
|
|
|
1047 if (n != 1 && ERR_peek_error()) {
|
|
92
|
1048 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
1049
|
|
|
1050 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1051 "SSL_get_error: %d", sslerr);
|
|
|
1052 }
|
|
|
1053
|
|
364
|
1054 if (n == 1 || sslerr == 0 || sslerr == SSL_ERROR_ZERO_RETURN) {
|
|
358
|
1055 SSL_free(c->ssl->connection);
|
|
|
1056 c->ssl = NULL;
|
|
|
1057
|
|
|
1058 return NGX_OK;
|
|
|
1059 }
|
|
|
1060
|
|
|
1061 if (sslerr == SSL_ERROR_WANT_READ || sslerr == SSL_ERROR_WANT_WRITE) {
|
|
126
|
1062 c->read->handler = ngx_ssl_shutdown_handler;
|
|
138
|
1063 c->write->handler = ngx_ssl_shutdown_handler;
|
|
126
|
1064
|
|
0
|
1065 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
1066 return NGX_ERROR;
|
|
|
1067 }
|
|
|
1068
|
|
|
1069 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
1070 return NGX_ERROR;
|
|
|
1071 }
|
|
|
1072
|
|
358
|
1073 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
138
|
1074 ngx_add_timer(c->read, 30000);
|
|
|
1075 }
|
|
|
1076
|
|
0
|
1077 return NGX_AGAIN;
|
|
|
1078 }
|
|
|
1079
|
|
140
|
1080 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
1081
|
|
|
1082 ngx_ssl_connection_error(c, sslerr, err, "SSL_shutdown() failed");
|
|
0
|
1083
|
|
92
|
1084 SSL_free(c->ssl->connection);
|
|
|
1085 c->ssl = NULL;
|
|
|
1086
|
|
0
|
1087 return NGX_ERROR;
|
|
|
1088 }
|
|
|
1089
|
|
|
1090
|
|
96
|
1091 static void
|
|
126
|
1092 ngx_ssl_shutdown_handler(ngx_event_t *ev)
|
|
|
1093 {
|
|
|
1094 ngx_connection_t *c;
|
|
|
1095 ngx_connection_handler_pt handler;
|
|
|
1096
|
|
|
1097 c = ev->data;
|
|
|
1098 handler = c->ssl->handler;
|
|
|
1099
|
|
|
1100 if (ev->timedout) {
|
|
|
1101 c->timedout = 1;
|
|
|
1102 }
|
|
|
1103
|
|
272
|
1104 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "SSL shutdown handler");
|
|
126
|
1105
|
|
|
1106 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
1107 return;
|
|
|
1108 }
|
|
|
1109
|
|
|
1110 handler(c);
|
|
|
1111 }
|
|
|
1112
|
|
|
1113
|
|
|
1114 static void
|
|
96
|
1115 ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
|
|
|
1116 char *text)
|
|
|
1117 {
|
|
364
|
1118 int n;
|
|
96
|
1119 ngx_uint_t level;
|
|
|
1120
|
|
|
1121 level = NGX_LOG_CRIT;
|
|
|
1122
|
|
|
1123 if (sslerr == SSL_ERROR_SYSCALL) {
|
|
|
1124
|
|
|
1125 if (err == NGX_ECONNRESET
|
|
|
1126 || err == NGX_EPIPE
|
|
|
1127 || err == NGX_ENOTCONN
|
|
138
|
1128 #if !(NGX_CRIT_ETIMEDOUT)
|
|
|
1129 || err == NGX_ETIMEDOUT
|
|
|
1130 #endif
|
|
96
|
1131 || err == NGX_ECONNREFUSED
|
|
364
|
1132 || err == NGX_ENETDOWN
|
|
|
1133 || err == NGX_ENETUNREACH
|
|
|
1134 || err == NGX_EHOSTDOWN
|
|
96
|
1135 || err == NGX_EHOSTUNREACH)
|
|
|
1136 {
|
|
|
1137 switch (c->log_error) {
|
|
|
1138
|
|
|
1139 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1140 case NGX_ERROR_INFO:
|
|
|
1141 level = NGX_LOG_INFO;
|
|
|
1142 break;
|
|
|
1143
|
|
|
1144 case NGX_ERROR_ERR:
|
|
|
1145 level = NGX_LOG_ERR;
|
|
|
1146 break;
|
|
|
1147
|
|
|
1148 default:
|
|
|
1149 break;
|
|
|
1150 }
|
|
|
1151 }
|
|
364
|
1152
|
|
|
1153 } else if (sslerr == SSL_ERROR_SSL) {
|
|
|
1154
|
|
|
1155 n = ERR_GET_REASON(ERR_peek_error());
|
|
|
1156
|
|
|
1157 /* handshake failures */
|
|
|
1158 if (n == SSL_R_NO_SHARED_CIPHER
|
|
|
1159 || n == SSL_R_UNEXPECTED_MESSAGE
|
|
|
1160 || n == SSL_R_WRONG_VERSION_NUMBER
|
|
|
1161 || n == 1000 /* SSL_R_SSLV3_ALERT_CLOSE_NOTIFY */
|
|
|
1162 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED
|
|
|
1163 || n == SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER
|
|
|
1164 || n == SSL_R_TLSV1_ALERT_UNKNOWN_CA)
|
|
|
1165 {
|
|
|
1166 switch (c->log_error) {
|
|
|
1167
|
|
|
1168 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1169 case NGX_ERROR_INFO:
|
|
|
1170 level = NGX_LOG_INFO;
|
|
|
1171 break;
|
|
|
1172
|
|
|
1173 case NGX_ERROR_ERR:
|
|
|
1174 level = NGX_LOG_ERR;
|
|
|
1175 break;
|
|
|
1176
|
|
|
1177 default:
|
|
|
1178 break;
|
|
|
1179 }
|
|
|
1180 }
|
|
96
|
1181 }
|
|
|
1182
|
|
|
1183 ngx_ssl_error(level, c->log, err, text);
|
|
|
1184 }
|
|
|
1185
|
|
|
1186
|
|
358
|
1187 static void
|
|
|
1188 ngx_ssl_clear_error(ngx_log_t *log)
|
|
|
1189 {
|
|
364
|
1190 while (ERR_peek_error()) {
|
|
358
|
1191 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "ignoring stale global SSL error");
|
|
|
1192 }
|
|
364
|
1193
|
|
|
1194 ERR_clear_error();
|
|
358
|
1195 }
|
|
|
1196
|
|
|
1197
|
|
132
|
1198 void ngx_cdecl
|
|
38
|
1199 ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, char *fmt, ...)
|
|
126
|
1200 {
|
|
364
|
1201 u_long n;
|
|
|
1202 va_list args;
|
|
|
1203 u_char *p, *last;
|
|
|
1204 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
10
|
1205
|
|
|
1206 last = errstr + NGX_MAX_CONF_ERRSTR;
|
|
0
|
1207
|
|
|
1208 va_start(args, fmt);
|
|
10
|
1209 p = ngx_vsnprintf(errstr, sizeof(errstr) - 1, fmt, args);
|
|
0
|
1210 va_end(args);
|
|
|
1211
|
|
96
|
1212 p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);
|
|
|
1213
|
|
364
|
1214 for ( ;; ) {
|
|
132
|
1215
|
|
|
1216 n = ERR_get_error();
|
|
|
1217
|
|
|
1218 if (n == 0) {
|
|
|
1219 break;
|
|
|
1220 }
|
|
96
|
1221
|
|
364
|
1222 if (p >= last) {
|
|
|
1223 continue;
|
|
|
1224 }
|
|
|
1225
|
|
96
|
1226 *p++ = ' ';
|
|
0
|
1227
|
|
96
|
1228 ERR_error_string_n(n, (char *) p, last - p);
|
|
|
1229
|
|
|
1230 while (p < last && *p) {
|
|
|
1231 p++;
|
|
|
1232 }
|
|
|
1233 }
|
|
0
|
1234
|
|
|
1235 ngx_log_error(level, log, err, "%s)", errstr);
|
|
|
1236 }
|
|
58
|
1237
|
|
|
1238
|
|
272
|
1239 ngx_int_t
|
|
|
1240 ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
|
|
|
1241 ssize_t builtin_session_cache, ngx_shm_zone_t *shm_zone, time_t timeout)
|
|
|
1242 {
|
|
|
1243 long cache_mode;
|
|
|
1244
|
|
358
|
1245 if (builtin_session_cache == NGX_SSL_NO_SCACHE) {
|
|
|
1246 SSL_CTX_set_session_cache_mode(ssl->ctx, SSL_SESS_CACHE_OFF);
|
|
|
1247 return NGX_OK;
|
|
|
1248 }
|
|
|
1249
|
|
272
|
1250 cache_mode = SSL_SESS_CACHE_SERVER;
|
|
|
1251
|
|
|
1252 if (shm_zone && builtin_session_cache == NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1253 cache_mode |= SSL_SESS_CACHE_NO_INTERNAL;
|
|
|
1254 }
|
|
|
1255
|
|
|
1256 SSL_CTX_set_session_cache_mode(ssl->ctx, cache_mode);
|
|
|
1257
|
|
|
1258 SSL_CTX_set_session_id_context(ssl->ctx, sess_ctx->data, sess_ctx->len);
|
|
|
1259
|
|
|
1260 if (builtin_session_cache != NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1261
|
|
|
1262 if (builtin_session_cache != NGX_SSL_DFLT_BUILTIN_SCACHE) {
|
|
|
1263 SSL_CTX_sess_set_cache_size(ssl->ctx, builtin_session_cache);
|
|
|
1264 }
|
|
|
1265 }
|
|
|
1266
|
|
274
|
1267 SSL_CTX_set_timeout(ssl->ctx, timeout);
|
|
|
1268
|
|
272
|
1269 if (shm_zone) {
|
|
|
1270 shm_zone->init = ngx_ssl_session_cache_init;
|
|
|
1271
|
|
|
1272 SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_session);
|
|
|
1273 SSL_CTX_sess_set_get_cb(ssl->ctx, ngx_ssl_get_cached_session);
|
|
|
1274 SSL_CTX_sess_set_remove_cb(ssl->ctx, ngx_ssl_remove_session);
|
|
|
1275
|
|
|
1276 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_session_cache_index, shm_zone)
|
|
|
1277 == 0)
|
|
|
1278 {
|
|
|
1279 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
1280 "SSL_CTX_set_ex_data() failed");
|
|
|
1281 return NGX_ERROR;
|
|
|
1282 }
|
|
|
1283 }
|
|
|
1284
|
|
|
1285 return NGX_OK;
|
|
|
1286 }
|
|
|
1287
|
|
|
1288
|
|
|
1289 static ngx_int_t
|
|
|
1290 ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
|
|
|
1291 {
|
|
|
1292 ngx_slab_pool_t *shpool;
|
|
|
1293 ngx_ssl_session_cache_t *cache;
|
|
|
1294
|
|
|
1295 if (data) {
|
|
|
1296 shm_zone->data = data;
|
|
|
1297 return NGX_OK;
|
|
|
1298 }
|
|
|
1299
|
|
|
1300 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1301
|
|
|
1302 cache = ngx_slab_alloc(shpool, sizeof(ngx_ssl_session_cache_t));
|
|
|
1303 if (cache == NULL) {
|
|
|
1304 return NGX_ERROR;
|
|
|
1305 }
|
|
|
1306
|
|
358
|
1307 ngx_rbtree_init(&cache->session_rbtree, &cache->sentinel,
|
|
356
|
1308 ngx_ssl_session_rbtree_insert_value);
|
|
272
|
1309
|
|
358
|
1310 ngx_queue_init(&cache->expire_queue);
|
|
|
1311
|
|
272
|
1312 shm_zone->data = cache;
|
|
|
1313
|
|
|
1314 return NGX_OK;
|
|
|
1315 }
|
|
|
1316
|
|
|
1317
|
|
|
1318 /*
|
|
274
|
1319 * The length of the session id is 16 bytes for SSLv2 sessions and
|
|
|
1320 * between 1 and 32 bytes for SSLv3/TLSv1, typically 32 bytes.
|
|
|
1321 * It seems that the typical length of the external ASN1 representation
|
|
|
1322 * of a session is 118 or 119 bytes for SSLv3/TSLv1.
|
|
|
1323 *
|
|
|
1324 * Thus on 32-bit platforms we allocate separately an rbtree node,
|
|
|
1325 * a session id, and an ASN1 representation, they take accordingly
|
|
|
1326 * 64, 32, and 128 bytes.
|
|
|
1327 *
|
|
|
1328 * On 64-bit platforms we allocate separately an rbtree node + session_id,
|
|
|
1329 * and an ASN1 representation, they take accordingly 128 and 128 bytes.
|
|
|
1330 *
|
|
272
|
1331 * OpenSSL's i2d_SSL_SESSION() and d2i_SSL_SESSION are slow,
|
|
|
1332 * so they are outside the code locked by shared pool mutex
|
|
|
1333 */
|
|
|
1334
|
|
|
1335 static int
|
|
|
1336 ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
|
|
|
1337 {
|
|
|
1338 int len;
|
|
274
|
1339 u_char *p, *id, *cached_sess;
|
|
272
|
1340 uint32_t hash;
|
|
|
1341 SSL_CTX *ssl_ctx;
|
|
|
1342 ngx_shm_zone_t *shm_zone;
|
|
|
1343 ngx_connection_t *c;
|
|
|
1344 ngx_slab_pool_t *shpool;
|
|
|
1345 ngx_ssl_sess_id_t *sess_id;
|
|
|
1346 ngx_ssl_session_cache_t *cache;
|
|
|
1347 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1348
|
|
|
1349 len = i2d_SSL_SESSION(sess, NULL);
|
|
|
1350
|
|
|
1351 /* do not cache too big session */
|
|
|
1352
|
|
|
1353 if (len > (int) NGX_SSL_MAX_SESSION_SIZE) {
|
|
|
1354 return 0;
|
|
|
1355 }
|
|
|
1356
|
|
|
1357 p = buf;
|
|
|
1358 i2d_SSL_SESSION(sess, &p);
|
|
|
1359
|
|
|
1360 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1361
|
|
|
1362 ssl_ctx = SSL_get_SSL_CTX(ssl_conn);
|
|
|
1363 shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
|
|
|
1364
|
|
|
1365 cache = shm_zone->data;
|
|
|
1366 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1367
|
|
|
1368 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1369
|
|
|
1370 /* drop one or two expired sessions */
|
|
|
1371 ngx_ssl_expire_sessions(cache, shpool, 1);
|
|
|
1372
|
|
274
|
1373 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1374
|
|
|
1375 if (cached_sess == NULL) {
|
|
|
1376
|
|
|
1377 /* drop the oldest non-expired session and try once more */
|
|
|
1378
|
|
|
1379 ngx_ssl_expire_sessions(cache, shpool, 0);
|
|
|
1380
|
|
274
|
1381 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1382
|
|
|
1383 if (cached_sess == NULL) {
|
|
274
|
1384 sess_id = NULL;
|
|
272
|
1385 goto failed;
|
|
|
1386 }
|
|
|
1387 }
|
|
|
1388
|
|
|
1389 sess_id = ngx_slab_alloc_locked(shpool, sizeof(ngx_ssl_sess_id_t));
|
|
|
1390 if (sess_id == NULL) {
|
|
|
1391 goto failed;
|
|
|
1392 }
|
|
|
1393
|
|
274
|
1394 #if (NGX_PTR_SIZE == 8)
|
|
|
1395
|
|
|
1396 id = sess_id->sess_id;
|
|
|
1397
|
|
|
1398 #else
|
|
|
1399
|
|
|
1400 id = ngx_slab_alloc_locked(shpool, sess->session_id_length);
|
|
|
1401 if (id == NULL) {
|
|
|
1402 goto failed;
|
|
|
1403 }
|
|
|
1404
|
|
|
1405 #endif
|
|
|
1406
|
|
|
1407 ngx_memcpy(cached_sess, buf, len);
|
|
272
|
1408
|
|
|
1409 ngx_memcpy(id, sess->session_id, sess->session_id_length);
|
|
|
1410
|
|
|
1411 hash = ngx_crc32_short(sess->session_id, sess->session_id_length);
|
|
|
1412
|
|
|
1413 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1414 "http ssl new session: %08XD:%d:%d",
|
|
|
1415 hash, sess->session_id_length, len);
|
|
|
1416
|
|
|
1417 sess_id->node.key = hash;
|
|
|
1418 sess_id->node.data = (u_char) sess->session_id_length;
|
|
|
1419 sess_id->id = id;
|
|
|
1420 sess_id->len = len;
|
|
|
1421 sess_id->session = cached_sess;
|
|
|
1422
|
|
358
|
1423 sess_id->expire = ngx_time() + SSL_CTX_get_timeout(ssl_ctx);
|
|
|
1424
|
|
|
1425 ngx_queue_insert_head(&cache->expire_queue, &sess_id->queue);
|
|
|
1426
|
|
|
1427 ngx_rbtree_insert(&cache->session_rbtree, &sess_id->node);
|
|
272
|
1428
|
|
|
1429 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1430
|
|
|
1431 return 0;
|
|
|
1432
|
|
|
1433 failed:
|
|
|
1434
|
|
|
1435 if (cached_sess) {
|
|
|
1436 ngx_slab_free_locked(shpool, cached_sess);
|
|
|
1437 }
|
|
|
1438
|
|
274
|
1439 if (sess_id) {
|
|
|
1440 ngx_slab_free_locked(shpool, sess_id);
|
|
272
|
1441 }
|
|
|
1442
|
|
|
1443 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1444
|
|
|
1445 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1446 "could not add new SSL session to the session cache");
|
|
|
1447
|
|
|
1448 return 0;
|
|
|
1449 }
|
|
|
1450
|
|
|
1451
|
|
|
1452 static ngx_ssl_session_t *
|
|
|
1453 ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn, u_char *id, int len,
|
|
|
1454 int *copy)
|
|
|
1455 {
|
|
|
1456 #if OPENSSL_VERSION_NUMBER >= 0x0090707fL
|
|
|
1457 const
|
|
|
1458 #endif
|
|
|
1459 u_char *p;
|
|
|
1460 uint32_t hash;
|
|
274
|
1461 ngx_int_t rc;
|
|
272
|
1462 ngx_shm_zone_t *shm_zone;
|
|
|
1463 ngx_slab_pool_t *shpool;
|
|
|
1464 ngx_connection_t *c;
|
|
|
1465 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1466 ngx_ssl_session_t *sess;
|
|
|
1467 ngx_ssl_sess_id_t *sess_id;
|
|
|
1468 ngx_ssl_session_cache_t *cache;
|
|
|
1469 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1470
|
|
|
1471 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1472
|
|
274
|
1473 hash = ngx_crc32_short(id, (size_t) len);
|
|
272
|
1474 *copy = 0;
|
|
|
1475
|
|
|
1476 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1477 "http ssl get session: %08XD:%d", hash, len);
|
|
|
1478
|
|
|
1479 shm_zone = SSL_CTX_get_ex_data(SSL_get_SSL_CTX(ssl_conn),
|
|
|
1480 ngx_ssl_session_cache_index);
|
|
|
1481
|
|
|
1482 cache = shm_zone->data;
|
|
|
1483
|
|
|
1484 sess = NULL;
|
|
|
1485
|
|
|
1486 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1487
|
|
|
1488 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1489
|
|
358
|
1490 node = cache->session_rbtree.root;
|
|
|
1491 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1492
|
|
|
1493 while (node != sentinel) {
|
|
|
1494
|
|
|
1495 if (hash < node->key) {
|
|
|
1496 node = node->left;
|
|
|
1497 continue;
|
|
|
1498 }
|
|
|
1499
|
|
|
1500 if (hash > node->key) {
|
|
|
1501 node = node->right;
|
|
|
1502 continue;
|
|
|
1503 }
|
|
|
1504
|
|
274
|
1505 /* hash == node->key */
|
|
|
1506
|
|
|
1507 do {
|
|
272
|
1508 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1509
|
|
274
|
1510 rc = ngx_memn2cmp(id, sess_id->id,
|
|
|
1511 (size_t) len, (size_t) node->data);
|
|
|
1512 if (rc == 0) {
|
|
272
|
1513
|
|
358
|
1514 if (sess_id->expire > ngx_time()) {
|
|
274
|
1515 ngx_memcpy(buf, sess_id->session, sess_id->len);
|
|
272
|
1516
|
|
|
1517 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1518
|
|
|
1519 p = buf;
|
|
|
1520 sess = d2i_SSL_SESSION(NULL, &p, sess_id->len);
|
|
|
1521
|
|
|
1522 return sess;
|
|
|
1523 }
|
|
|
1524
|
|
358
|
1525 ngx_queue_remove(&sess_id->queue);
|
|
|
1526
|
|
|
1527 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1528
|
|
274
|
1529 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1530 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1531 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1532 #endif
|
|
272
|
1533 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1534
|
|
|
1535 sess = NULL;
|
|
|
1536
|
|
274
|
1537 goto done;
|
|
272
|
1538 }
|
|
274
|
1539
|
|
|
1540 node = (rc < 0) ? node->left : node->right;
|
|
|
1541
|
|
|
1542 } while (node != sentinel && hash == node->key);
|
|
|
1543
|
|
|
1544 break;
|
|
272
|
1545 }
|
|
|
1546
|
|
274
|
1547 done:
|
|
|
1548
|
|
272
|
1549 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1550
|
|
|
1551 return sess;
|
|
|
1552 }
|
|
|
1553
|
|
|
1554
|
|
366
|
1555 void
|
|
|
1556 ngx_ssl_remove_cached_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1557 {
|
|
|
1558 SSL_CTX_remove_session(ssl, sess);
|
|
|
1559
|
|
|
1560 ngx_ssl_remove_session(ssl, sess);
|
|
|
1561 }
|
|
|
1562
|
|
|
1563
|
|
272
|
1564 static void
|
|
|
1565 ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1566 {
|
|
274
|
1567 size_t len;
|
|
|
1568 u_char *id;
|
|
272
|
1569 uint32_t hash;
|
|
274
|
1570 ngx_int_t rc;
|
|
272
|
1571 ngx_shm_zone_t *shm_zone;
|
|
|
1572 ngx_slab_pool_t *shpool;
|
|
|
1573 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1574 ngx_ssl_sess_id_t *sess_id;
|
|
|
1575 ngx_ssl_session_cache_t *cache;
|
|
|
1576
|
|
|
1577 shm_zone = SSL_CTX_get_ex_data(ssl, ngx_ssl_session_cache_index);
|
|
|
1578
|
|
366
|
1579 if (shm_zone == NULL) {
|
|
|
1580 return;
|
|
|
1581 }
|
|
|
1582
|
|
272
|
1583 cache = shm_zone->data;
|
|
|
1584
|
|
|
1585 id = sess->session_id;
|
|
274
|
1586 len = (size_t) sess->session_id_length;
|
|
|
1587
|
|
|
1588 hash = ngx_crc32_short(id, len);
|
|
272
|
1589
|
|
|
1590 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
274
|
1591 "http ssl remove session: %08XD:%uz", hash, len);
|
|
272
|
1592
|
|
|
1593 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1594
|
|
|
1595 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1596
|
|
358
|
1597 node = cache->session_rbtree.root;
|
|
|
1598 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1599
|
|
|
1600 while (node != sentinel) {
|
|
|
1601
|
|
|
1602 if (hash < node->key) {
|
|
|
1603 node = node->left;
|
|
|
1604 continue;
|
|
|
1605 }
|
|
|
1606
|
|
|
1607 if (hash > node->key) {
|
|
|
1608 node = node->right;
|
|
|
1609 continue;
|
|
|
1610 }
|
|
|
1611
|
|
274
|
1612 /* hash == node->key */
|
|
|
1613
|
|
|
1614 do {
|
|
272
|
1615 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1616
|
|
274
|
1617 rc = ngx_memn2cmp(id, sess_id->id, len, (size_t) node->data);
|
|
|
1618
|
|
|
1619 if (rc == 0) {
|
|
358
|
1620
|
|
|
1621 ngx_queue_remove(&sess_id->queue);
|
|
|
1622
|
|
|
1623 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1624
|
|
274
|
1625 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1626 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1627 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1628 #endif
|
|
272
|
1629 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1630
|
|
274
|
1631 goto done;
|
|
272
|
1632 }
|
|
274
|
1633
|
|
|
1634 node = (rc < 0) ? node->left : node->right;
|
|
|
1635
|
|
|
1636 } while (node != sentinel && hash == node->key);
|
|
|
1637
|
|
|
1638 break;
|
|
272
|
1639 }
|
|
|
1640
|
|
274
|
1641 done:
|
|
|
1642
|
|
272
|
1643 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1644 }
|
|
|
1645
|
|
|
1646
|
|
|
1647 static void
|
|
|
1648 ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
|
|
|
1649 ngx_slab_pool_t *shpool, ngx_uint_t n)
|
|
|
1650 {
|
|
358
|
1651 time_t now;
|
|
|
1652 ngx_queue_t *q;
|
|
274
|
1653 ngx_ssl_sess_id_t *sess_id;
|
|
272
|
1654
|
|
358
|
1655 now = ngx_time();
|
|
272
|
1656
|
|
|
1657 while (n < 3) {
|
|
|
1658
|
|
358
|
1659 if (ngx_queue_empty(&cache->expire_queue)) {
|
|
272
|
1660 return;
|
|
|
1661 }
|
|
|
1662
|
|
358
|
1663 q = ngx_queue_last(&cache->expire_queue);
|
|
|
1664
|
|
|
1665 sess_id = ngx_queue_data(q, ngx_ssl_sess_id_t, queue);
|
|
|
1666
|
|
|
1667 if (n++ != 0 && sess_id->expire > now) {
|
|
332
|
1668 return;
|
|
272
|
1669 }
|
|
|
1670
|
|
358
|
1671 ngx_queue_remove(q);
|
|
272
|
1672
|
|
|
1673 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
|
1674 "expire session: %08Xi", sess_id->node.key);
|
|
|
1675
|
|
358
|
1676 ngx_rbtree_delete(&cache->session_rbtree, &sess_id->node);
|
|
|
1677
|
|
274
|
1678 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1679 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1680 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1681 #endif
|
|
272
|
1682 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1683 }
|
|
|
1684 }
|
|
|
1685
|
|
|
1686
|
|
274
|
1687 static void
|
|
|
1688 ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
1689 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
1690 {
|
|
356
|
1691 ngx_rbtree_node_t **p;
|
|
|
1692 ngx_ssl_sess_id_t *sess_id, *sess_id_temp;
|
|
274
|
1693
|
|
|
1694 for ( ;; ) {
|
|
|
1695
|
|
|
1696 if (node->key < temp->key) {
|
|
|
1697
|
|
356
|
1698 p = &temp->left;
|
|
274
|
1699
|
|
|
1700 } else if (node->key > temp->key) {
|
|
|
1701
|
|
356
|
1702 p = &temp->right;
|
|
274
|
1703
|
|
|
1704 } else { /* node->key == temp->key */
|
|
|
1705
|
|
|
1706 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1707 sess_id_temp = (ngx_ssl_sess_id_t *) temp;
|
|
|
1708
|
|
356
|
1709 p = (ngx_memn2cmp(sess_id->id, sess_id_temp->id,
|
|
|
1710 (size_t) node->data, (size_t) temp->data)
|
|
|
1711 < 0) ? &temp->left : &temp->right;
|
|
274
|
1712 }
|
|
356
|
1713
|
|
|
1714 if (*p == sentinel) {
|
|
|
1715 break;
|
|
|
1716 }
|
|
|
1717
|
|
|
1718 temp = *p;
|
|
274
|
1719 }
|
|
|
1720
|
|
356
|
1721 *p = node;
|
|
274
|
1722 node->parent = temp;
|
|
|
1723 node->left = sentinel;
|
|
|
1724 node->right = sentinel;
|
|
|
1725 ngx_rbt_red(node);
|
|
276
|
1726 }
|
|
274
|
1727
|
|
|
1728
|
|
58
|
1729 void
|
|
|
1730 ngx_ssl_cleanup_ctx(void *data)
|
|
|
1731 {
|
|
138
|
1732 ngx_ssl_t *ssl = data;
|
|
58
|
1733
|
|
138
|
1734 SSL_CTX_free(ssl->ctx);
|
|
58
|
1735 }
|
|
90
|
1736
|
|
|
1737
|
|
220
|
1738 ngx_int_t
|
|
|
1739 ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1740 {
|
|
220
|
1741 s->data = (u_char *) SSL_get_version(c->ssl->connection);
|
|
|
1742 return NGX_OK;
|
|
160
|
1743 }
|
|
|
1744
|
|
|
1745
|
|
220
|
1746 ngx_int_t
|
|
|
1747 ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1748 {
|
|
220
|
1749 s->data = (u_char *) SSL_get_cipher_name(c->ssl->connection);
|
|
|
1750 return NGX_OK;
|
|
160
|
1751 }
|
|
|
1752
|
|
|
1753
|
|
196
|
1754 ngx_int_t
|
|
|
1755 ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1756 {
|
|
|
1757 char *p;
|
|
|
1758 size_t len;
|
|
|
1759 X509 *cert;
|
|
|
1760 X509_NAME *name;
|
|
|
1761
|
|
|
1762 s->len = 0;
|
|
|
1763
|
|
|
1764 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1765 if (cert == NULL) {
|
|
|
1766 return NGX_OK;
|
|
|
1767 }
|
|
|
1768
|
|
|
1769 name = X509_get_subject_name(cert);
|
|
|
1770 if (name == NULL) {
|
|
|
1771 return NGX_ERROR;
|
|
|
1772 }
|
|
|
1773
|
|
|
1774 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1775
|
|
|
1776 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1777
|
|
|
1778 s->len = len;
|
|
|
1779 s->data = ngx_palloc(pool, len);
|
|
|
1780 if (s->data == NULL) {
|
|
|
1781 OPENSSL_free(p);
|
|
|
1782 return NGX_ERROR;
|
|
|
1783 }
|
|
|
1784
|
|
|
1785 ngx_memcpy(s->data, p, len);
|
|
|
1786
|
|
|
1787 OPENSSL_free(p);
|
|
|
1788
|
|
|
1789 return NGX_OK;
|
|
|
1790 }
|
|
|
1791
|
|
|
1792
|
|
|
1793 ngx_int_t
|
|
|
1794 ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1795 {
|
|
|
1796 char *p;
|
|
|
1797 size_t len;
|
|
|
1798 X509 *cert;
|
|
|
1799 X509_NAME *name;
|
|
|
1800
|
|
|
1801 s->len = 0;
|
|
|
1802
|
|
|
1803 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1804 if (cert == NULL) {
|
|
|
1805 return NGX_OK;
|
|
|
1806 }
|
|
|
1807
|
|
|
1808 name = X509_get_issuer_name(cert);
|
|
|
1809 if (name == NULL) {
|
|
|
1810 return NGX_ERROR;
|
|
|
1811 }
|
|
|
1812
|
|
|
1813 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1814
|
|
|
1815 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1816
|
|
|
1817 s->len = len;
|
|
|
1818 s->data = ngx_palloc(pool, len);
|
|
|
1819 if (s->data == NULL) {
|
|
|
1820 OPENSSL_free(p);
|
|
|
1821 return NGX_ERROR;
|
|
|
1822 }
|
|
|
1823
|
|
|
1824 ngx_memcpy(s->data, p, len);
|
|
|
1825
|
|
|
1826 OPENSSL_free(p);
|
|
|
1827
|
|
|
1828 return NGX_OK;
|
|
|
1829 }
|
|
|
1830
|
|
|
1831
|
|
220
|
1832 ngx_int_t
|
|
|
1833 ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1834 {
|
|
|
1835 size_t len;
|
|
|
1836 X509 *cert;
|
|
|
1837 BIO *bio;
|
|
|
1838
|
|
|
1839 s->len = 0;
|
|
|
1840
|
|
|
1841 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1842 if (cert == NULL) {
|
|
|
1843 return NGX_OK;
|
|
|
1844 }
|
|
|
1845
|
|
|
1846 bio = BIO_new(BIO_s_mem());
|
|
|
1847 if (bio == NULL) {
|
|
|
1848 return NGX_ERROR;
|
|
|
1849 }
|
|
|
1850
|
|
|
1851 i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
|
|
|
1852 len = BIO_pending(bio);
|
|
|
1853
|
|
|
1854 s->len = len;
|
|
|
1855 s->data = ngx_palloc(pool, len);
|
|
|
1856 if (s->data == NULL) {
|
|
|
1857 BIO_free(bio);
|
|
|
1858 return NGX_ERROR;
|
|
|
1859 }
|
|
|
1860
|
|
|
1861 BIO_read(bio, s->data, len);
|
|
|
1862 BIO_free(bio);
|
|
|
1863
|
|
|
1864 return NGX_OK;
|
|
|
1865 }
|
|
|
1866
|
|
|
1867
|
|
90
|
1868 static void *
|
|
|
1869 ngx_openssl_create_conf(ngx_cycle_t *cycle)
|
|
|
1870 {
|
|
|
1871 ngx_openssl_conf_t *oscf;
|
|
126
|
1872
|
|
90
|
1873 oscf = ngx_pcalloc(cycle->pool, sizeof(ngx_openssl_conf_t));
|
|
|
1874 if (oscf == NULL) {
|
|
|
1875 return NGX_CONF_ERROR;
|
|
|
1876 }
|
|
126
|
1877
|
|
90
|
1878 /*
|
|
|
1879 * set by ngx_pcalloc():
|
|
126
|
1880 *
|
|
90
|
1881 * oscf->engine.len = 0;
|
|
|
1882 * oscf->engine.data = NULL;
|
|
126
|
1883 */
|
|
90
|
1884
|
|
|
1885 return oscf;
|
|
|
1886 }
|
|
|
1887
|
|
|
1888
|
|
|
1889 static char *
|
|
|
1890 ngx_openssl_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
|
1891 {
|
|
|
1892 #if (NGX_SSL_ENGINE)
|
|
|
1893 ngx_openssl_conf_t *oscf = conf;
|
|
120
|
1894
|
|
90
|
1895 ENGINE *engine;
|
|
|
1896
|
|
|
1897 if (oscf->engine.len == 0) {
|
|
|
1898 return NGX_CONF_OK;
|
|
|
1899 }
|
|
126
|
1900
|
|
90
|
1901 engine = ENGINE_by_id((const char *) oscf->engine.data);
|
|
|
1902
|
|
|
1903 if (engine == NULL) {
|
|
|
1904 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1905 "ENGINE_by_id(\"%V\") failed", &oscf->engine);
|
|
|
1906 return NGX_CONF_ERROR;
|
|
|
1907 }
|
|
|
1908
|
|
|
1909 if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
|
|
|
1910 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1911 "ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
|
|
|
1912 &oscf->engine);
|
|
|
1913 return NGX_CONF_ERROR;
|
|
|
1914 }
|
|
|
1915
|
|
|
1916 ENGINE_free(engine);
|
|
|
1917
|
|
|
1918 #endif
|
|
|
1919
|
|
|
1920 return NGX_CONF_OK;
|
|
|
1921 }
|
|
|
1922
|
|
|
1923
|
|
|
1924 #if !(NGX_SSL_ENGINE)
|
|
|
1925
|
|
|
1926 static char *
|
|
|
1927 ngx_openssl_noengine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1928 {
|
|
|
1929 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
112
|
1930 "\"ssl_engine\" directive is available only in "
|
|
|
1931 "OpenSSL 0.9.7 and higher,");
|
|
90
|
1932
|
|
|
1933 return NGX_CONF_ERROR;
|
|
|
1934 }
|
|
|
1935
|
|
|
1936 #endif
|
|
120
|
1937
|
|
|
1938
|
|
|
1939 static void
|
|
|
1940 ngx_openssl_exit(ngx_cycle_t *cycle)
|
|
|
1941 {
|
|
|
1942 #if (NGX_SSL_ENGINE)
|
|
|
1943 ENGINE_cleanup();
|
|
|
1944 #endif
|
|
|
1945 }
|
