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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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372
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288 #if (NGX_DEBUG)
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220
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289 char *subject, *issuer;
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290 int err, depth;
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291 X509 *cert;
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372
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292 X509_NAME *sname, *iname;
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220
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293 ngx_connection_t *c;
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294 ngx_ssl_conn_t *ssl_conn;
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295
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296 ssl_conn = X509_STORE_CTX_get_ex_data(x509_store,
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297 SSL_get_ex_data_X509_STORE_CTX_idx());
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298
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299 c = ngx_ssl_get_connection(ssl_conn);
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300
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301 cert = X509_STORE_CTX_get_current_cert(x509_store);
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302 err = X509_STORE_CTX_get_error(x509_store);
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303 depth = X509_STORE_CTX_get_error_depth(x509_store);
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304
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372
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305 sname = X509_get_subject_name(cert);
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306 subject = sname ? X509_NAME_oneline(sname, NULL, 0) : "(none)";
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307
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308 iname = X509_get_issuer_name(cert);
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309 issuer = iname ? X509_NAME_oneline(iname, NULL, 0) : "(none)";
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220
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310
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272
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311 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
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220
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312 "verify:%d, error:%d, depth:%d, "
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313 "subject:\"%s\",issuer: \"%s\"",
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314 ok, err, depth, subject, issuer);
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315
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372
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316 if (sname) {
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317 OPENSSL_free(subject);
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318 }
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319
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320 if (iname) {
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321 OPENSSL_free(issuer);
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322 }
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323 #endif
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324
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220
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325 return 1;
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326 }
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327
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328
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196
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329 ngx_int_t
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96
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330 ngx_ssl_generate_rsa512_key(ngx_ssl_t *ssl)
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331 {
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220
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332 RSA *key;
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333
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108
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334 if (SSL_CTX_need_tmp_RSA(ssl->ctx) == 0) {
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335 return NGX_OK;
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336 }
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337
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220
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338 key = RSA_generate_key(512, RSA_F4, NULL, NULL);
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96
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339
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220
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340 if (key) {
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341 SSL_CTX_set_tmp_rsa(ssl->ctx, key);
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342
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343 RSA_free(key);
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344
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96
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345 return NGX_OK;
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346 }
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347
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348 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "RSA_generate_key(512) failed");
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349
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350 return NGX_ERROR;
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351 }
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352
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353
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354 ngx_int_t
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355 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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356 {
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96
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357 ngx_ssl_connection_t *sc;
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0
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358
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96
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359 sc = ngx_pcalloc(c->pool, sizeof(ngx_ssl_connection_t));
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360 if (sc == NULL) {
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0
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361 return NGX_ERROR;
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362 }
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363
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358
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364 sc->buffer = ((flags & NGX_SSL_BUFFER) != 0);
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0
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365
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96
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366 sc->connection = SSL_new(ssl->ctx);
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0
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367
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96
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368 if (sc->connection == NULL) {
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0
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369 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_new() failed");
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370 return NGX_ERROR;
|
|
|
371 }
|
|
|
372
|
|
96
|
373 if (SSL_set_fd(sc->connection, c->fd) == 0) {
|
|
0
|
374 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_fd() failed");
|
|
|
375 return NGX_ERROR;
|
|
|
376 }
|
|
|
377
|
|
126
|
378 if (flags & NGX_SSL_CLIENT) {
|
|
|
379 SSL_set_connect_state(sc->connection);
|
|
|
380
|
|
|
381 } else {
|
|
|
382 SSL_set_accept_state(sc->connection);
|
|
|
383 }
|
|
0
|
384
|
|
272
|
385 if (SSL_set_ex_data(sc->connection, ngx_ssl_connection_index, c) == 0) {
|
|
220
|
386 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
|
|
|
387 return NGX_ERROR;
|
|
|
388 }
|
|
|
389
|
|
96
|
390 c->ssl = sc;
|
|
0
|
391
|
|
|
392 return NGX_OK;
|
|
|
393 }
|
|
|
394
|
|
|
395
|
|
96
|
396 ngx_int_t
|
|
126
|
397 ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session)
|
|
|
398 {
|
|
|
399 if (session) {
|
|
|
400 if (SSL_set_session(c->ssl->connection, session) == 0) {
|
|
|
401 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_session() failed");
|
|
|
402 return NGX_ERROR;
|
|
|
403 }
|
|
|
404 }
|
|
|
405
|
|
|
406 return NGX_OK;
|
|
|
407 }
|
|
|
408
|
|
|
409
|
|
|
410 ngx_int_t
|
|
96
|
411 ngx_ssl_handshake(ngx_connection_t *c)
|
|
|
412 {
|
|
|
413 int n, sslerr;
|
|
|
414 ngx_err_t err;
|
|
|
415
|
|
358
|
416 ngx_ssl_clear_error(c->log);
|
|
|
417
|
|
96
|
418 n = SSL_do_handshake(c->ssl->connection);
|
|
|
419
|
|
126
|
420 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
|
|
96
|
421
|
|
|
422 if (n == 1) {
|
|
|
423
|
|
|
424 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
425 return NGX_ERROR;
|
|
|
426 }
|
|
|
427
|
|
|
428 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
429 return NGX_ERROR;
|
|
|
430 }
|
|
|
431
|
|
|
432 #if (NGX_DEBUG)
|
|
|
433 {
|
|
|
434 char buf[129], *s, *d;
|
|
|
435 SSL_CIPHER *cipher;
|
|
|
436
|
|
|
437 cipher = SSL_get_current_cipher(c->ssl->connection);
|
|
|
438
|
|
|
439 if (cipher) {
|
|
|
440 SSL_CIPHER_description(cipher, &buf[1], 128);
|
|
|
441
|
|
|
442 for (s = &buf[1], d = buf; *s; s++) {
|
|
|
443 if (*s == ' ' && *d == ' ') {
|
|
|
444 continue;
|
|
|
445 }
|
|
|
446
|
|
|
447 if (*s == LF || *s == CR) {
|
|
|
448 continue;
|
|
|
449 }
|
|
|
450
|
|
|
451 *++d = *s;
|
|
|
452 }
|
|
|
453
|
|
|
454 if (*d != ' ') {
|
|
|
455 d++;
|
|
|
456 }
|
|
|
457
|
|
|
458 *d = '\0';
|
|
|
459
|
|
132
|
460 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
461 "SSL: %s, cipher: \"%s\"",
|
|
126
|
462 SSL_get_version(c->ssl->connection), &buf[1]);
|
|
96
|
463
|
|
|
464 if (SSL_session_reused(c->ssl->connection)) {
|
|
132
|
465 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
466 "SSL reused session");
|
|
|
467 }
|
|
|
468
|
|
|
469 } else {
|
|
|
470 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
471 "SSL no shared ciphers");
|
|
96
|
472 }
|
|
|
473 }
|
|
|
474 #endif
|
|
|
475
|
|
|
476 c->ssl->handshaked = 1;
|
|
|
477
|
|
|
478 c->recv = ngx_ssl_recv;
|
|
|
479 c->send = ngx_ssl_write;
|
|
126
|
480 c->recv_chain = ngx_ssl_recv_chain;
|
|
|
481 c->send_chain = ngx_ssl_send_chain;
|
|
96
|
482
|
|
|
483 return NGX_OK;
|
|
|
484 }
|
|
|
485
|
|
|
486 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
487
|
|
|
488 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
489
|
|
|
490 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
491 c->read->ready = 0;
|
|
|
492 c->read->handler = ngx_ssl_handshake_handler;
|
|
140
|
493 c->write->handler = ngx_ssl_handshake_handler;
|
|
96
|
494
|
|
|
495 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
496 return NGX_ERROR;
|
|
|
497 }
|
|
|
498
|
|
|
499 return NGX_AGAIN;
|
|
|
500 }
|
|
|
501
|
|
|
502 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
503 c->write->ready = 0;
|
|
140
|
504 c->read->handler = ngx_ssl_handshake_handler;
|
|
96
|
505 c->write->handler = ngx_ssl_handshake_handler;
|
|
|
506
|
|
|
507 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
508 return NGX_ERROR;
|
|
|
509 }
|
|
|
510
|
|
|
511 return NGX_AGAIN;
|
|
|
512 }
|
|
|
513
|
|
|
514 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
515
|
|
|
516 c->ssl->no_wait_shutdown = 1;
|
|
|
517 c->ssl->no_send_shutdown = 1;
|
|
140
|
518 c->read->eof = 1;
|
|
96
|
519
|
|
|
520 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
|
521 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
126
|
522 "peer closed connection in SSL handshake");
|
|
96
|
523
|
|
|
524 return NGX_ERROR;
|
|
|
525 }
|
|
|
526
|
|
140
|
527 c->read->error = 1;
|
|
|
528
|
|
96
|
529 ngx_ssl_connection_error(c, sslerr, err, "SSL_do_handshake() failed");
|
|
|
530
|
|
|
531 return NGX_ERROR;
|
|
|
532 }
|
|
|
533
|
|
|
534
|
|
|
535 static void
|
|
|
536 ngx_ssl_handshake_handler(ngx_event_t *ev)
|
|
|
537 {
|
|
|
538 ngx_connection_t *c;
|
|
|
539
|
|
|
540 c = ev->data;
|
|
|
541
|
|
98
|
542 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
543 "SSL handshake handler: %d", ev->write);
|
|
96
|
544
|
|
140
|
545 if (ev->timedout) {
|
|
|
546 c->ssl->handler(c);
|
|
|
547 return;
|
|
|
548 }
|
|
|
549
|
|
96
|
550 if (ngx_ssl_handshake(c) == NGX_AGAIN) {
|
|
|
551 return;
|
|
|
552 }
|
|
|
553
|
|
|
554 c->ssl->handler(c);
|
|
|
555 }
|
|
|
556
|
|
|
557
|
|
38
|
558 ssize_t
|
|
126
|
559 ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl)
|
|
|
560 {
|
|
294
|
561 u_char *last;
|
|
126
|
562 ssize_t n, bytes;
|
|
|
563 ngx_buf_t *b;
|
|
|
564
|
|
|
565 bytes = 0;
|
|
|
566
|
|
294
|
567 b = cl->buf;
|
|
|
568 last = b->last;
|
|
|
569
|
|
|
570 for ( ;; ) {
|
|
|
571
|
|
|
572 n = ngx_ssl_recv(c, last, b->end - last);
|
|
126
|
573
|
|
|
574 if (n > 0) {
|
|
294
|
575 last += n;
|
|
126
|
576 bytes += n;
|
|
|
577
|
|
294
|
578 if (last == b->end) {
|
|
126
|
579 cl = cl->next;
|
|
294
|
580
|
|
|
581 if (cl == NULL) {
|
|
|
582 return bytes;
|
|
|
583 }
|
|
|
584
|
|
|
585 b = cl->buf;
|
|
|
586 last = b->last;
|
|
126
|
587 }
|
|
|
588
|
|
|
589 continue;
|
|
|
590 }
|
|
|
591
|
|
|
592 if (bytes) {
|
|
|
593 return bytes;
|
|
|
594 }
|
|
|
595
|
|
|
596 return n;
|
|
|
597 }
|
|
|
598 }
|
|
|
599
|
|
|
600
|
|
|
601 ssize_t
|
|
38
|
602 ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size)
|
|
0
|
603 {
|
|
38
|
604 int n, bytes;
|
|
|
605
|
|
|
606 if (c->ssl->last == NGX_ERROR) {
|
|
330
|
607 c->read->error = 1;
|
|
38
|
608 return NGX_ERROR;
|
|
|
609 }
|
|
|
610
|
|
126
|
611 if (c->ssl->last == NGX_DONE) {
|
|
330
|
612 c->read->ready = 0;
|
|
|
613 c->read->eof = 1;
|
|
126
|
614 return 0;
|
|
|
615 }
|
|
|
616
|
|
38
|
617 bytes = 0;
|
|
0
|
618
|
|
358
|
619 ngx_ssl_clear_error(c->log);
|
|
|
620
|
|
38
|
621 /*
|
|
|
622 * SSL_read() may return data in parts, so try to read
|
|
|
623 * until SSL_read() would return no data
|
|
|
624 */
|
|
|
625
|
|
|
626 for ( ;; ) {
|
|
0
|
627
|
|
92
|
628 n = SSL_read(c->ssl->connection, buf, size);
|
|
38
|
629
|
|
126
|
630 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_read: %d", n);
|
|
0
|
631
|
|
38
|
632 if (n > 0) {
|
|
|
633 bytes += n;
|
|
|
634 }
|
|
|
635
|
|
|
636 c->ssl->last = ngx_ssl_handle_recv(c, n);
|
|
|
637
|
|
330
|
638 if (c->ssl->last == NGX_OK) {
|
|
|
639
|
|
|
640 size -= n;
|
|
|
641
|
|
|
642 if (size == 0) {
|
|
38
|
643 return bytes;
|
|
126
|
644 }
|
|
38
|
645
|
|
330
|
646 buf += n;
|
|
|
647
|
|
|
648 continue;
|
|
|
649 }
|
|
|
650
|
|
|
651 if (bytes) {
|
|
|
652 return bytes;
|
|
|
653 }
|
|
|
654
|
|
|
655 switch (c->ssl->last) {
|
|
|
656
|
|
|
657 case NGX_DONE:
|
|
|
658 c->read->ready = 0;
|
|
|
659 c->read->eof = 1;
|
|
|
660 return 0;
|
|
|
661
|
|
|
662 case NGX_ERROR:
|
|
|
663 c->read->error = 1;
|
|
|
664
|
|
|
665 /* fall thruogh */
|
|
|
666
|
|
|
667 case NGX_AGAIN:
|
|
126
|
668 return c->ssl->last;
|
|
28
|
669 }
|
|
38
|
670 }
|
|
|
671 }
|
|
|
672
|
|
|
673
|
|
|
674 static ngx_int_t
|
|
|
675 ngx_ssl_handle_recv(ngx_connection_t *c, int n)
|
|
|
676 {
|
|
96
|
677 int sslerr;
|
|
|
678 ngx_err_t err;
|
|
38
|
679
|
|
|
680 if (n > 0) {
|
|
28
|
681
|
|
22
|
682 if (c->ssl->saved_write_handler) {
|
|
|
683
|
|
58
|
684 c->write->handler = c->ssl->saved_write_handler;
|
|
22
|
685 c->ssl->saved_write_handler = NULL;
|
|
|
686 c->write->ready = 1;
|
|
|
687
|
|
|
688 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
689 return NGX_ERROR;
|
|
|
690 }
|
|
|
691
|
|
112
|
692 ngx_post_event(c->write, &ngx_posted_events);
|
|
22
|
693 }
|
|
|
694
|
|
38
|
695 return NGX_OK;
|
|
0
|
696 }
|
|
|
697
|
|
92
|
698 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
699
|
|
|
700 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
701
|
|
|
702 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
703
|
|
|
704 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
4
|
705 c->read->ready = 0;
|
|
0
|
706 return NGX_AGAIN;
|
|
|
707 }
|
|
|
708
|
|
|
709 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
88
|
710
|
|
96
|
711 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
712 "peer started SSL renegotiation");
|
|
22
|
713
|
|
|
714 c->write->ready = 0;
|
|
|
715
|
|
|
716 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
717 return NGX_ERROR;
|
|
|
718 }
|
|
|
719
|
|
|
720 /*
|
|
|
721 * we do not set the timer because there is already the read event timer
|
|
|
722 */
|
|
|
723
|
|
|
724 if (c->ssl->saved_write_handler == NULL) {
|
|
58
|
725 c->ssl->saved_write_handler = c->write->handler;
|
|
|
726 c->write->handler = ngx_ssl_write_handler;
|
|
22
|
727 }
|
|
|
728
|
|
0
|
729 return NGX_AGAIN;
|
|
|
730 }
|
|
|
731
|
|
96
|
732 c->ssl->no_wait_shutdown = 1;
|
|
|
733 c->ssl->no_send_shutdown = 1;
|
|
0
|
734
|
|
|
735 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
126
|
736 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
737 "peer shutdown SSL cleanly");
|
|
|
738 return NGX_DONE;
|
|
0
|
739 }
|
|
|
740
|
|
96
|
741 ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");
|
|
0
|
742
|
|
|
743 return NGX_ERROR;
|
|
|
744 }
|
|
|
745
|
|
|
746
|
|
38
|
747 static void
|
|
|
748 ngx_ssl_write_handler(ngx_event_t *wev)
|
|
22
|
749 {
|
|
|
750 ngx_connection_t *c;
|
|
|
751
|
|
|
752 c = wev->data;
|
|
96
|
753
|
|
58
|
754 c->read->handler(c->read);
|
|
22
|
755 }
|
|
|
756
|
|
|
757
|
|
0
|
758 /*
|
|
|
759 * OpenSSL has no SSL_writev() so we copy several bufs into our 16K buffer
|
|
22
|
760 * before the SSL_write() call to decrease a SSL overhead.
|
|
0
|
761 *
|
|
|
762 * Besides for protocols such as HTTP it is possible to always buffer
|
|
|
763 * the output to decrease a SSL overhead some more.
|
|
|
764 */
|
|
|
765
|
|
38
|
766 ngx_chain_t *
|
|
|
767 ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
|
|
0
|
768 {
|
|
|
769 int n;
|
|
|
770 ngx_uint_t flush;
|
|
|
771 ssize_t send, size;
|
|
|
772 ngx_buf_t *buf;
|
|
|
773
|
|
146
|
774 if (!c->ssl->buffer
|
|
|
775 || (in && in->next == NULL && !(c->buffered & NGX_SSL_BUFFERED)))
|
|
|
776 {
|
|
0
|
777 /*
|
|
126
|
778 * we avoid a buffer copy if
|
|
|
779 * we do not need to buffer the output
|
|
|
780 * or the incoming buf is a single and our buffer is empty
|
|
0
|
781 */
|
|
|
782
|
|
126
|
783 while (in) {
|
|
|
784 if (ngx_buf_special(in->buf)) {
|
|
|
785 in = in->next;
|
|
|
786 continue;
|
|
|
787 }
|
|
0
|
788
|
|
126
|
789 n = ngx_ssl_write(c, in->buf->pos, in->buf->last - in->buf->pos);
|
|
|
790
|
|
|
791 if (n == NGX_ERROR) {
|
|
|
792 return NGX_CHAIN_ERROR;
|
|
|
793 }
|
|
0
|
794
|
|
126
|
795 if (n == NGX_AGAIN) {
|
|
146
|
796 c->buffered |= NGX_SSL_BUFFERED;
|
|
126
|
797 return in;
|
|
|
798 }
|
|
|
799
|
|
|
800 in->buf->pos += n;
|
|
|
801
|
|
|
802 if (in->buf->pos == in->buf->last) {
|
|
|
803 in = in->next;
|
|
|
804 }
|
|
0
|
805 }
|
|
|
806
|
|
|
807 return in;
|
|
|
808 }
|
|
|
809
|
|
22
|
810
|
|
|
811 /* the maximum limit size is the maximum uint32_t value - the page size */
|
|
|
812
|
|
324
|
813 if (limit == 0 || limit > (off_t) (NGX_MAX_UINT32_VALUE - ngx_pagesize)) {
|
|
22
|
814 limit = NGX_MAX_UINT32_VALUE - ngx_pagesize;
|
|
|
815 }
|
|
|
816
|
|
126
|
817 buf = c->ssl->buf;
|
|
358
|
818
|
|
|
819 if (buf == NULL) {
|
|
|
820 buf = ngx_create_temp_buf(c->pool, NGX_SSL_BUFSIZE);
|
|
|
821 if (buf == NULL) {
|
|
|
822 return NGX_CHAIN_ERROR;
|
|
|
823 }
|
|
|
824
|
|
|
825 c->ssl->buf = buf;
|
|
|
826 }
|
|
|
827
|
|
|
828 if (buf->start == NULL) {
|
|
|
829 buf->start = ngx_palloc(c->pool, NGX_SSL_BUFSIZE);
|
|
|
830 if (buf->start == NULL) {
|
|
|
831 return NGX_CHAIN_ERROR;
|
|
|
832 }
|
|
|
833
|
|
|
834 buf->pos = buf->start;
|
|
|
835 buf->last = buf->start;
|
|
|
836 buf->end = buf->start + NGX_SSL_BUFSIZE;
|
|
|
837 }
|
|
|
838
|
|
0
|
839 send = 0;
|
|
|
840 flush = (in == NULL) ? 1 : 0;
|
|
|
841
|
|
|
842 for ( ;; ) {
|
|
|
843
|
|
|
844 while (in && buf->last < buf->end) {
|
|
132
|
845 if (in->buf->last_buf || in->buf->flush) {
|
|
0
|
846 flush = 1;
|
|
|
847 }
|
|
|
848
|
|
|
849 if (ngx_buf_special(in->buf)) {
|
|
|
850 in = in->next;
|
|
|
851 continue;
|
|
|
852 }
|
|
|
853
|
|
|
854 size = in->buf->last - in->buf->pos;
|
|
|
855
|
|
|
856 if (size > buf->end - buf->last) {
|
|
|
857 size = buf->end - buf->last;
|
|
|
858 }
|
|
|
859
|
|
|
860 if (send + size > limit) {
|
|
126
|
861 size = (ssize_t) (limit - send);
|
|
0
|
862 flush = 1;
|
|
|
863 }
|
|
|
864
|
|
|
865 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
866 "SSL buf copy: %d", size);
|
|
|
867
|
|
|
868 ngx_memcpy(buf->last, in->buf->pos, size);
|
|
|
869
|
|
|
870 buf->last += size;
|
|
|
871
|
|
|
872 in->buf->pos += size;
|
|
126
|
873
|
|
0
|
874 if (in->buf->pos == in->buf->last) {
|
|
|
875 in = in->next;
|
|
|
876 }
|
|
|
877 }
|
|
|
878
|
|
|
879 size = buf->last - buf->pos;
|
|
|
880
|
|
|
881 if (!flush && buf->last < buf->end && c->ssl->buffer) {
|
|
|
882 break;
|
|
|
883 }
|
|
|
884
|
|
|
885 n = ngx_ssl_write(c, buf->pos, size);
|
|
|
886
|
|
|
887 if (n == NGX_ERROR) {
|
|
|
888 return NGX_CHAIN_ERROR;
|
|
|
889 }
|
|
|
890
|
|
60
|
891 if (n == NGX_AGAIN) {
|
|
146
|
892 c->buffered |= NGX_SSL_BUFFERED;
|
|
60
|
893 return in;
|
|
0
|
894 }
|
|
|
895
|
|
|
896 buf->pos += n;
|
|
|
897 send += n;
|
|
|
898 c->sent += n;
|
|
|
899
|
|
|
900 if (n < size) {
|
|
|
901 break;
|
|
|
902 }
|
|
|
903
|
|
|
904 if (buf->pos == buf->last) {
|
|
|
905 buf->pos = buf->start;
|
|
|
906 buf->last = buf->start;
|
|
|
907 }
|
|
|
908
|
|
|
909 if (in == NULL || send == limit) {
|
|
|
910 break;
|
|
|
911 }
|
|
|
912 }
|
|
|
913
|
|
146
|
914 if (buf->pos < buf->last) {
|
|
|
915 c->buffered |= NGX_SSL_BUFFERED;
|
|
|
916
|
|
|
917 } else {
|
|
|
918 c->buffered &= ~NGX_SSL_BUFFERED;
|
|
|
919 }
|
|
0
|
920
|
|
|
921 return in;
|
|
|
922 }
|
|
|
923
|
|
|
924
|
|
88
|
925 ssize_t
|
|
38
|
926 ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size)
|
|
0
|
927 {
|
|
96
|
928 int n, sslerr;
|
|
|
929 ngx_err_t err;
|
|
0
|
930
|
|
358
|
931 ngx_ssl_clear_error(c->log);
|
|
|
932
|
|
0
|
933 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %d", size);
|
|
|
934
|
|
92
|
935 n = SSL_write(c->ssl->connection, data, size);
|
|
0
|
936
|
|
|
937 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_write: %d", n);
|
|
|
938
|
|
|
939 if (n > 0) {
|
|
88
|
940
|
|
22
|
941 if (c->ssl->saved_read_handler) {
|
|
|
942
|
|
58
|
943 c->read->handler = c->ssl->saved_read_handler;
|
|
22
|
944 c->ssl->saved_read_handler = NULL;
|
|
|
945 c->read->ready = 1;
|
|
|
946
|
|
|
947 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
948 return NGX_ERROR;
|
|
|
949 }
|
|
|
950
|
|
112
|
951 ngx_post_event(c->read, &ngx_posted_events);
|
|
22
|
952 }
|
|
|
953
|
|
0
|
954 return n;
|
|
|
955 }
|
|
|
956
|
|
92
|
957 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
958
|
|
|
959 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
960
|
|
|
961 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
962
|
|
|
963 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
964 c->write->ready = 0;
|
|
|
965 return NGX_AGAIN;
|
|
|
966 }
|
|
|
967
|
|
|
968 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
2
|
969
|
|
96
|
970 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
971 "peer started SSL renegotiation");
|
|
22
|
972
|
|
|
973 c->read->ready = 0;
|
|
|
974
|
|
|
975 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
976 return NGX_ERROR;
|
|
|
977 }
|
|
|
978
|
|
|
979 /*
|
|
|
980 * we do not set the timer because there is already
|
|
|
981 * the write event timer
|
|
|
982 */
|
|
|
983
|
|
|
984 if (c->ssl->saved_read_handler == NULL) {
|
|
58
|
985 c->ssl->saved_read_handler = c->read->handler;
|
|
|
986 c->read->handler = ngx_ssl_read_handler;
|
|
22
|
987 }
|
|
|
988
|
|
0
|
989 return NGX_AGAIN;
|
|
|
990 }
|
|
|
991
|
|
96
|
992 c->ssl->no_wait_shutdown = 1;
|
|
|
993 c->ssl->no_send_shutdown = 1;
|
|
140
|
994 c->write->error = 1;
|
|
92
|
995
|
|
96
|
996 ngx_ssl_connection_error(c, sslerr, err, "SSL_write() failed");
|
|
0
|
997
|
|
|
998 return NGX_ERROR;
|
|
|
999 }
|
|
|
1000
|
|
|
1001
|
|
38
|
1002 static void
|
|
|
1003 ngx_ssl_read_handler(ngx_event_t *rev)
|
|
22
|
1004 {
|
|
|
1005 ngx_connection_t *c;
|
|
|
1006
|
|
|
1007 c = rev->data;
|
|
96
|
1008
|
|
58
|
1009 c->write->handler(c->write);
|
|
22
|
1010 }
|
|
|
1011
|
|
|
1012
|
|
358
|
1013 void
|
|
|
1014 ngx_ssl_free_buffer(ngx_connection_t *c)
|
|
|
1015 {
|
|
360
|
1016 if (c->ssl->buf && c->ssl->buf->start) {
|
|
|
1017 if (ngx_pfree(c->pool, c->ssl->buf->start) == NGX_OK) {
|
|
|
1018 c->ssl->buf->start = NULL;
|
|
|
1019 }
|
|
358
|
1020 }
|
|
|
1021 }
|
|
|
1022
|
|
|
1023
|
|
38
|
1024 ngx_int_t
|
|
|
1025 ngx_ssl_shutdown(ngx_connection_t *c)
|
|
0
|
1026 {
|
|
358
|
1027 int n, sslerr, mode;
|
|
|
1028 ngx_err_t err;
|
|
0
|
1029
|
|
126
|
1030 if (c->timedout) {
|
|
96
|
1031 mode = SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN;
|
|
0
|
1032
|
|
96
|
1033 } else {
|
|
|
1034 mode = SSL_get_shutdown(c->ssl->connection);
|
|
22
|
1035
|
|
96
|
1036 if (c->ssl->no_wait_shutdown) {
|
|
|
1037 mode |= SSL_RECEIVED_SHUTDOWN;
|
|
0
|
1038 }
|
|
|
1039
|
|
96
|
1040 if (c->ssl->no_send_shutdown) {
|
|
|
1041 mode |= SSL_SENT_SHUTDOWN;
|
|
0
|
1042 }
|
|
|
1043 }
|
|
|
1044
|
|
96
|
1045 SSL_set_shutdown(c->ssl->connection, mode);
|
|
|
1046
|
|
358
|
1047 ngx_ssl_clear_error(c->log);
|
|
|
1048
|
|
|
1049 n = SSL_shutdown(c->ssl->connection);
|
|
|
1050
|
|
|
1051 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_shutdown: %d", n);
|
|
|
1052
|
|
10
|
1053 sslerr = 0;
|
|
0
|
1054
|
|
364
|
1055 /* SSL_shutdown() never returns -1, on error it returns 0 */
|
|
|
1056
|
|
|
1057 if (n != 1 && ERR_peek_error()) {
|
|
92
|
1058 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
1059
|
|
|
1060 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1061 "SSL_get_error: %d", sslerr);
|
|
|
1062 }
|
|
|
1063
|
|
364
|
1064 if (n == 1 || sslerr == 0 || sslerr == SSL_ERROR_ZERO_RETURN) {
|
|
358
|
1065 SSL_free(c->ssl->connection);
|
|
|
1066 c->ssl = NULL;
|
|
|
1067
|
|
|
1068 return NGX_OK;
|
|
|
1069 }
|
|
|
1070
|
|
|
1071 if (sslerr == SSL_ERROR_WANT_READ || sslerr == SSL_ERROR_WANT_WRITE) {
|
|
126
|
1072 c->read->handler = ngx_ssl_shutdown_handler;
|
|
138
|
1073 c->write->handler = ngx_ssl_shutdown_handler;
|
|
126
|
1074
|
|
0
|
1075 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
1076 return NGX_ERROR;
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
1080 return NGX_ERROR;
|
|
|
1081 }
|
|
|
1082
|
|
358
|
1083 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
138
|
1084 ngx_add_timer(c->read, 30000);
|
|
|
1085 }
|
|
|
1086
|
|
0
|
1087 return NGX_AGAIN;
|
|
|
1088 }
|
|
|
1089
|
|
140
|
1090 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
1091
|
|
|
1092 ngx_ssl_connection_error(c, sslerr, err, "SSL_shutdown() failed");
|
|
0
|
1093
|
|
92
|
1094 SSL_free(c->ssl->connection);
|
|
|
1095 c->ssl = NULL;
|
|
|
1096
|
|
0
|
1097 return NGX_ERROR;
|
|
|
1098 }
|
|
|
1099
|
|
|
1100
|
|
96
|
1101 static void
|
|
126
|
1102 ngx_ssl_shutdown_handler(ngx_event_t *ev)
|
|
|
1103 {
|
|
|
1104 ngx_connection_t *c;
|
|
|
1105 ngx_connection_handler_pt handler;
|
|
|
1106
|
|
|
1107 c = ev->data;
|
|
|
1108 handler = c->ssl->handler;
|
|
|
1109
|
|
|
1110 if (ev->timedout) {
|
|
|
1111 c->timedout = 1;
|
|
|
1112 }
|
|
|
1113
|
|
272
|
1114 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "SSL shutdown handler");
|
|
126
|
1115
|
|
|
1116 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
1117 return;
|
|
|
1118 }
|
|
|
1119
|
|
|
1120 handler(c);
|
|
|
1121 }
|
|
|
1122
|
|
|
1123
|
|
|
1124 static void
|
|
96
|
1125 ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
|
|
|
1126 char *text)
|
|
|
1127 {
|
|
364
|
1128 int n;
|
|
96
|
1129 ngx_uint_t level;
|
|
|
1130
|
|
|
1131 level = NGX_LOG_CRIT;
|
|
|
1132
|
|
|
1133 if (sslerr == SSL_ERROR_SYSCALL) {
|
|
|
1134
|
|
|
1135 if (err == NGX_ECONNRESET
|
|
|
1136 || err == NGX_EPIPE
|
|
|
1137 || err == NGX_ENOTCONN
|
|
138
|
1138 #if !(NGX_CRIT_ETIMEDOUT)
|
|
|
1139 || err == NGX_ETIMEDOUT
|
|
|
1140 #endif
|
|
96
|
1141 || err == NGX_ECONNREFUSED
|
|
364
|
1142 || err == NGX_ENETDOWN
|
|
|
1143 || err == NGX_ENETUNREACH
|
|
|
1144 || err == NGX_EHOSTDOWN
|
|
96
|
1145 || err == NGX_EHOSTUNREACH)
|
|
|
1146 {
|
|
|
1147 switch (c->log_error) {
|
|
|
1148
|
|
|
1149 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1150 case NGX_ERROR_INFO:
|
|
|
1151 level = NGX_LOG_INFO;
|
|
|
1152 break;
|
|
|
1153
|
|
|
1154 case NGX_ERROR_ERR:
|
|
|
1155 level = NGX_LOG_ERR;
|
|
|
1156 break;
|
|
|
1157
|
|
|
1158 default:
|
|
|
1159 break;
|
|
|
1160 }
|
|
|
1161 }
|
|
364
|
1162
|
|
|
1163 } else if (sslerr == SSL_ERROR_SSL) {
|
|
|
1164
|
|
|
1165 n = ERR_GET_REASON(ERR_peek_error());
|
|
|
1166
|
|
|
1167 /* handshake failures */
|
|
370
|
1168 if (n == SSL_R_DIGEST_CHECK_FAILED
|
|
|
1169 || n == SSL_R_NO_SHARED_CIPHER
|
|
364
|
1170 || n == SSL_R_UNEXPECTED_MESSAGE
|
|
|
1171 || n == SSL_R_WRONG_VERSION_NUMBER
|
|
370
|
1172 || n == SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC
|
|
364
|
1173 || n == 1000 /* SSL_R_SSLV3_ALERT_CLOSE_NOTIFY */
|
|
370
|
1174 || n == SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE
|
|
|
1175 || n == SSL_R_SSLV3_ALERT_BAD_RECORD_MAC
|
|
|
1176 || n == SSL_R_SSLV3_ALERT_DECOMPRESSION_FAILURE
|
|
|
1177 || n == SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE
|
|
|
1178 || n == SSL_R_SSLV3_ALERT_BAD_CERTIFICATE
|
|
|
1179 || n == SSL_R_SSLV3_ALERT_UNSUPPORTED_CERTIFICATE
|
|
|
1180 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED
|
|
364
|
1181 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED
|
|
370
|
1182 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN
|
|
364
|
1183 || n == SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER
|
|
|
1184 || n == SSL_R_TLSV1_ALERT_UNKNOWN_CA)
|
|
|
1185 {
|
|
|
1186 switch (c->log_error) {
|
|
|
1187
|
|
|
1188 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1189 case NGX_ERROR_INFO:
|
|
|
1190 level = NGX_LOG_INFO;
|
|
|
1191 break;
|
|
|
1192
|
|
|
1193 case NGX_ERROR_ERR:
|
|
|
1194 level = NGX_LOG_ERR;
|
|
|
1195 break;
|
|
|
1196
|
|
|
1197 default:
|
|
|
1198 break;
|
|
|
1199 }
|
|
|
1200 }
|
|
96
|
1201 }
|
|
|
1202
|
|
|
1203 ngx_ssl_error(level, c->log, err, text);
|
|
|
1204 }
|
|
|
1205
|
|
|
1206
|
|
358
|
1207 static void
|
|
|
1208 ngx_ssl_clear_error(ngx_log_t *log)
|
|
|
1209 {
|
|
364
|
1210 while (ERR_peek_error()) {
|
|
358
|
1211 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "ignoring stale global SSL error");
|
|
|
1212 }
|
|
364
|
1213
|
|
|
1214 ERR_clear_error();
|
|
358
|
1215 }
|
|
|
1216
|
|
|
1217
|
|
132
|
1218 void ngx_cdecl
|
|
38
|
1219 ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, char *fmt, ...)
|
|
126
|
1220 {
|
|
364
|
1221 u_long n;
|
|
|
1222 va_list args;
|
|
|
1223 u_char *p, *last;
|
|
|
1224 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
10
|
1225
|
|
|
1226 last = errstr + NGX_MAX_CONF_ERRSTR;
|
|
0
|
1227
|
|
|
1228 va_start(args, fmt);
|
|
10
|
1229 p = ngx_vsnprintf(errstr, sizeof(errstr) - 1, fmt, args);
|
|
0
|
1230 va_end(args);
|
|
|
1231
|
|
96
|
1232 p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);
|
|
|
1233
|
|
364
|
1234 for ( ;; ) {
|
|
132
|
1235
|
|
|
1236 n = ERR_get_error();
|
|
|
1237
|
|
|
1238 if (n == 0) {
|
|
|
1239 break;
|
|
|
1240 }
|
|
96
|
1241
|
|
364
|
1242 if (p >= last) {
|
|
|
1243 continue;
|
|
|
1244 }
|
|
|
1245
|
|
96
|
1246 *p++ = ' ';
|
|
0
|
1247
|
|
96
|
1248 ERR_error_string_n(n, (char *) p, last - p);
|
|
|
1249
|
|
|
1250 while (p < last && *p) {
|
|
|
1251 p++;
|
|
|
1252 }
|
|
|
1253 }
|
|
0
|
1254
|
|
|
1255 ngx_log_error(level, log, err, "%s)", errstr);
|
|
|
1256 }
|
|
58
|
1257
|
|
|
1258
|
|
272
|
1259 ngx_int_t
|
|
|
1260 ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
|
|
|
1261 ssize_t builtin_session_cache, ngx_shm_zone_t *shm_zone, time_t timeout)
|
|
|
1262 {
|
|
|
1263 long cache_mode;
|
|
|
1264
|
|
358
|
1265 if (builtin_session_cache == NGX_SSL_NO_SCACHE) {
|
|
|
1266 SSL_CTX_set_session_cache_mode(ssl->ctx, SSL_SESS_CACHE_OFF);
|
|
|
1267 return NGX_OK;
|
|
|
1268 }
|
|
|
1269
|
|
378
|
1270 if (builtin_session_cache == NGX_SSL_NONE_SCACHE) {
|
|
|
1271
|
|
|
1272 /*
|
|
|
1273 * If the server explicitly says that it does not support
|
|
|
1274 * session reuse (see SSL_SESS_CACHE_OFF above), then
|
|
|
1275 * Outlook Express fails to upload a sent email to
|
|
|
1276 * the Sent Items folder on the IMAP server via a separate IMAP
|
|
|
1277 * connection in the background. Therefore we have a special
|
|
|
1278 * mode (SSL_SESS_CACHE_SERVER|SSL_SESS_CACHE_NO_INTERNAL_STORE)
|
|
|
1279 * where the server pretends that it supports session reuse,
|
|
|
1280 * but it does not actually store any session.
|
|
|
1281 */
|
|
|
1282
|
|
|
1283 SSL_CTX_set_session_cache_mode(ssl->ctx,
|
|
|
1284 SSL_SESS_CACHE_SERVER
|
|
|
1285 |SSL_SESS_CACHE_NO_AUTO_CLEAR
|
|
|
1286 |SSL_SESS_CACHE_NO_INTERNAL_STORE);
|
|
|
1287
|
|
|
1288 SSL_CTX_sess_set_cache_size(ssl->ctx, 1);
|
|
|
1289
|
|
|
1290 return NGX_OK;
|
|
|
1291 }
|
|
|
1292
|
|
272
|
1293 cache_mode = SSL_SESS_CACHE_SERVER;
|
|
|
1294
|
|
|
1295 if (shm_zone && builtin_session_cache == NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1296 cache_mode |= SSL_SESS_CACHE_NO_INTERNAL;
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 SSL_CTX_set_session_cache_mode(ssl->ctx, cache_mode);
|
|
|
1300
|
|
|
1301 SSL_CTX_set_session_id_context(ssl->ctx, sess_ctx->data, sess_ctx->len);
|
|
|
1302
|
|
|
1303 if (builtin_session_cache != NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1304
|
|
|
1305 if (builtin_session_cache != NGX_SSL_DFLT_BUILTIN_SCACHE) {
|
|
|
1306 SSL_CTX_sess_set_cache_size(ssl->ctx, builtin_session_cache);
|
|
|
1307 }
|
|
|
1308 }
|
|
|
1309
|
|
274
|
1310 SSL_CTX_set_timeout(ssl->ctx, timeout);
|
|
|
1311
|
|
272
|
1312 if (shm_zone) {
|
|
|
1313 shm_zone->init = ngx_ssl_session_cache_init;
|
|
|
1314
|
|
|
1315 SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_session);
|
|
|
1316 SSL_CTX_sess_set_get_cb(ssl->ctx, ngx_ssl_get_cached_session);
|
|
|
1317 SSL_CTX_sess_set_remove_cb(ssl->ctx, ngx_ssl_remove_session);
|
|
|
1318
|
|
|
1319 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_session_cache_index, shm_zone)
|
|
|
1320 == 0)
|
|
|
1321 {
|
|
|
1322 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
1323 "SSL_CTX_set_ex_data() failed");
|
|
|
1324 return NGX_ERROR;
|
|
|
1325 }
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 return NGX_OK;
|
|
|
1329 }
|
|
|
1330
|
|
|
1331
|
|
|
1332 static ngx_int_t
|
|
|
1333 ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
|
|
|
1334 {
|
|
|
1335 ngx_slab_pool_t *shpool;
|
|
|
1336 ngx_ssl_session_cache_t *cache;
|
|
|
1337
|
|
|
1338 if (data) {
|
|
|
1339 shm_zone->data = data;
|
|
|
1340 return NGX_OK;
|
|
|
1341 }
|
|
|
1342
|
|
|
1343 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1344
|
|
|
1345 cache = ngx_slab_alloc(shpool, sizeof(ngx_ssl_session_cache_t));
|
|
|
1346 if (cache == NULL) {
|
|
|
1347 return NGX_ERROR;
|
|
|
1348 }
|
|
|
1349
|
|
358
|
1350 ngx_rbtree_init(&cache->session_rbtree, &cache->sentinel,
|
|
356
|
1351 ngx_ssl_session_rbtree_insert_value);
|
|
272
|
1352
|
|
358
|
1353 ngx_queue_init(&cache->expire_queue);
|
|
|
1354
|
|
272
|
1355 shm_zone->data = cache;
|
|
|
1356
|
|
|
1357 return NGX_OK;
|
|
|
1358 }
|
|
|
1359
|
|
|
1360
|
|
|
1361 /*
|
|
274
|
1362 * The length of the session id is 16 bytes for SSLv2 sessions and
|
|
|
1363 * between 1 and 32 bytes for SSLv3/TLSv1, typically 32 bytes.
|
|
|
1364 * It seems that the typical length of the external ASN1 representation
|
|
|
1365 * of a session is 118 or 119 bytes for SSLv3/TSLv1.
|
|
|
1366 *
|
|
|
1367 * Thus on 32-bit platforms we allocate separately an rbtree node,
|
|
|
1368 * a session id, and an ASN1 representation, they take accordingly
|
|
|
1369 * 64, 32, and 128 bytes.
|
|
|
1370 *
|
|
|
1371 * On 64-bit platforms we allocate separately an rbtree node + session_id,
|
|
|
1372 * and an ASN1 representation, they take accordingly 128 and 128 bytes.
|
|
|
1373 *
|
|
272
|
1374 * OpenSSL's i2d_SSL_SESSION() and d2i_SSL_SESSION are slow,
|
|
|
1375 * so they are outside the code locked by shared pool mutex
|
|
|
1376 */
|
|
|
1377
|
|
|
1378 static int
|
|
|
1379 ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
|
|
|
1380 {
|
|
|
1381 int len;
|
|
274
|
1382 u_char *p, *id, *cached_sess;
|
|
272
|
1383 uint32_t hash;
|
|
|
1384 SSL_CTX *ssl_ctx;
|
|
|
1385 ngx_shm_zone_t *shm_zone;
|
|
|
1386 ngx_connection_t *c;
|
|
|
1387 ngx_slab_pool_t *shpool;
|
|
|
1388 ngx_ssl_sess_id_t *sess_id;
|
|
|
1389 ngx_ssl_session_cache_t *cache;
|
|
|
1390 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1391
|
|
|
1392 len = i2d_SSL_SESSION(sess, NULL);
|
|
|
1393
|
|
|
1394 /* do not cache too big session */
|
|
|
1395
|
|
|
1396 if (len > (int) NGX_SSL_MAX_SESSION_SIZE) {
|
|
|
1397 return 0;
|
|
|
1398 }
|
|
|
1399
|
|
|
1400 p = buf;
|
|
|
1401 i2d_SSL_SESSION(sess, &p);
|
|
|
1402
|
|
|
1403 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1404
|
|
|
1405 ssl_ctx = SSL_get_SSL_CTX(ssl_conn);
|
|
|
1406 shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
|
|
|
1407
|
|
|
1408 cache = shm_zone->data;
|
|
|
1409 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1410
|
|
|
1411 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1412
|
|
|
1413 /* drop one or two expired sessions */
|
|
|
1414 ngx_ssl_expire_sessions(cache, shpool, 1);
|
|
|
1415
|
|
274
|
1416 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1417
|
|
|
1418 if (cached_sess == NULL) {
|
|
|
1419
|
|
|
1420 /* drop the oldest non-expired session and try once more */
|
|
|
1421
|
|
|
1422 ngx_ssl_expire_sessions(cache, shpool, 0);
|
|
|
1423
|
|
274
|
1424 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1425
|
|
|
1426 if (cached_sess == NULL) {
|
|
274
|
1427 sess_id = NULL;
|
|
272
|
1428 goto failed;
|
|
|
1429 }
|
|
|
1430 }
|
|
|
1431
|
|
|
1432 sess_id = ngx_slab_alloc_locked(shpool, sizeof(ngx_ssl_sess_id_t));
|
|
|
1433 if (sess_id == NULL) {
|
|
|
1434 goto failed;
|
|
|
1435 }
|
|
|
1436
|
|
274
|
1437 #if (NGX_PTR_SIZE == 8)
|
|
|
1438
|
|
|
1439 id = sess_id->sess_id;
|
|
|
1440
|
|
|
1441 #else
|
|
|
1442
|
|
|
1443 id = ngx_slab_alloc_locked(shpool, sess->session_id_length);
|
|
|
1444 if (id == NULL) {
|
|
|
1445 goto failed;
|
|
|
1446 }
|
|
|
1447
|
|
|
1448 #endif
|
|
|
1449
|
|
|
1450 ngx_memcpy(cached_sess, buf, len);
|
|
272
|
1451
|
|
|
1452 ngx_memcpy(id, sess->session_id, sess->session_id_length);
|
|
|
1453
|
|
|
1454 hash = ngx_crc32_short(sess->session_id, sess->session_id_length);
|
|
|
1455
|
|
|
1456 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1457 "http ssl new session: %08XD:%d:%d",
|
|
|
1458 hash, sess->session_id_length, len);
|
|
|
1459
|
|
|
1460 sess_id->node.key = hash;
|
|
|
1461 sess_id->node.data = (u_char) sess->session_id_length;
|
|
|
1462 sess_id->id = id;
|
|
|
1463 sess_id->len = len;
|
|
|
1464 sess_id->session = cached_sess;
|
|
|
1465
|
|
358
|
1466 sess_id->expire = ngx_time() + SSL_CTX_get_timeout(ssl_ctx);
|
|
|
1467
|
|
|
1468 ngx_queue_insert_head(&cache->expire_queue, &sess_id->queue);
|
|
|
1469
|
|
|
1470 ngx_rbtree_insert(&cache->session_rbtree, &sess_id->node);
|
|
272
|
1471
|
|
|
1472 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1473
|
|
|
1474 return 0;
|
|
|
1475
|
|
|
1476 failed:
|
|
|
1477
|
|
|
1478 if (cached_sess) {
|
|
|
1479 ngx_slab_free_locked(shpool, cached_sess);
|
|
|
1480 }
|
|
|
1481
|
|
274
|
1482 if (sess_id) {
|
|
|
1483 ngx_slab_free_locked(shpool, sess_id);
|
|
272
|
1484 }
|
|
|
1485
|
|
|
1486 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1487
|
|
|
1488 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1489 "could not add new SSL session to the session cache");
|
|
|
1490
|
|
|
1491 return 0;
|
|
|
1492 }
|
|
|
1493
|
|
|
1494
|
|
|
1495 static ngx_ssl_session_t *
|
|
|
1496 ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn, u_char *id, int len,
|
|
|
1497 int *copy)
|
|
|
1498 {
|
|
|
1499 #if OPENSSL_VERSION_NUMBER >= 0x0090707fL
|
|
|
1500 const
|
|
|
1501 #endif
|
|
|
1502 u_char *p;
|
|
|
1503 uint32_t hash;
|
|
274
|
1504 ngx_int_t rc;
|
|
272
|
1505 ngx_shm_zone_t *shm_zone;
|
|
|
1506 ngx_slab_pool_t *shpool;
|
|
|
1507 ngx_connection_t *c;
|
|
|
1508 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1509 ngx_ssl_session_t *sess;
|
|
|
1510 ngx_ssl_sess_id_t *sess_id;
|
|
|
1511 ngx_ssl_session_cache_t *cache;
|
|
|
1512 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1513
|
|
|
1514 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1515
|
|
274
|
1516 hash = ngx_crc32_short(id, (size_t) len);
|
|
272
|
1517 *copy = 0;
|
|
|
1518
|
|
|
1519 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1520 "http ssl get session: %08XD:%d", hash, len);
|
|
|
1521
|
|
|
1522 shm_zone = SSL_CTX_get_ex_data(SSL_get_SSL_CTX(ssl_conn),
|
|
|
1523 ngx_ssl_session_cache_index);
|
|
|
1524
|
|
|
1525 cache = shm_zone->data;
|
|
|
1526
|
|
|
1527 sess = NULL;
|
|
|
1528
|
|
|
1529 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1530
|
|
|
1531 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1532
|
|
358
|
1533 node = cache->session_rbtree.root;
|
|
|
1534 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1535
|
|
|
1536 while (node != sentinel) {
|
|
|
1537
|
|
|
1538 if (hash < node->key) {
|
|
|
1539 node = node->left;
|
|
|
1540 continue;
|
|
|
1541 }
|
|
|
1542
|
|
|
1543 if (hash > node->key) {
|
|
|
1544 node = node->right;
|
|
|
1545 continue;
|
|
|
1546 }
|
|
|
1547
|
|
274
|
1548 /* hash == node->key */
|
|
|
1549
|
|
|
1550 do {
|
|
272
|
1551 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1552
|
|
274
|
1553 rc = ngx_memn2cmp(id, sess_id->id,
|
|
|
1554 (size_t) len, (size_t) node->data);
|
|
|
1555 if (rc == 0) {
|
|
272
|
1556
|
|
358
|
1557 if (sess_id->expire > ngx_time()) {
|
|
274
|
1558 ngx_memcpy(buf, sess_id->session, sess_id->len);
|
|
272
|
1559
|
|
|
1560 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1561
|
|
|
1562 p = buf;
|
|
|
1563 sess = d2i_SSL_SESSION(NULL, &p, sess_id->len);
|
|
|
1564
|
|
|
1565 return sess;
|
|
|
1566 }
|
|
|
1567
|
|
358
|
1568 ngx_queue_remove(&sess_id->queue);
|
|
|
1569
|
|
|
1570 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1571
|
|
274
|
1572 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1573 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1574 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1575 #endif
|
|
272
|
1576 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1577
|
|
|
1578 sess = NULL;
|
|
|
1579
|
|
274
|
1580 goto done;
|
|
272
|
1581 }
|
|
274
|
1582
|
|
|
1583 node = (rc < 0) ? node->left : node->right;
|
|
|
1584
|
|
|
1585 } while (node != sentinel && hash == node->key);
|
|
|
1586
|
|
|
1587 break;
|
|
272
|
1588 }
|
|
|
1589
|
|
274
|
1590 done:
|
|
|
1591
|
|
272
|
1592 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1593
|
|
|
1594 return sess;
|
|
|
1595 }
|
|
|
1596
|
|
|
1597
|
|
366
|
1598 void
|
|
|
1599 ngx_ssl_remove_cached_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1600 {
|
|
|
1601 SSL_CTX_remove_session(ssl, sess);
|
|
|
1602
|
|
|
1603 ngx_ssl_remove_session(ssl, sess);
|
|
|
1604 }
|
|
|
1605
|
|
|
1606
|
|
272
|
1607 static void
|
|
|
1608 ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1609 {
|
|
274
|
1610 size_t len;
|
|
|
1611 u_char *id;
|
|
272
|
1612 uint32_t hash;
|
|
274
|
1613 ngx_int_t rc;
|
|
272
|
1614 ngx_shm_zone_t *shm_zone;
|
|
|
1615 ngx_slab_pool_t *shpool;
|
|
|
1616 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1617 ngx_ssl_sess_id_t *sess_id;
|
|
|
1618 ngx_ssl_session_cache_t *cache;
|
|
|
1619
|
|
|
1620 shm_zone = SSL_CTX_get_ex_data(ssl, ngx_ssl_session_cache_index);
|
|
|
1621
|
|
366
|
1622 if (shm_zone == NULL) {
|
|
|
1623 return;
|
|
|
1624 }
|
|
|
1625
|
|
272
|
1626 cache = shm_zone->data;
|
|
|
1627
|
|
|
1628 id = sess->session_id;
|
|
274
|
1629 len = (size_t) sess->session_id_length;
|
|
|
1630
|
|
|
1631 hash = ngx_crc32_short(id, len);
|
|
272
|
1632
|
|
|
1633 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
274
|
1634 "http ssl remove session: %08XD:%uz", hash, len);
|
|
272
|
1635
|
|
|
1636 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1637
|
|
|
1638 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1639
|
|
358
|
1640 node = cache->session_rbtree.root;
|
|
|
1641 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1642
|
|
|
1643 while (node != sentinel) {
|
|
|
1644
|
|
|
1645 if (hash < node->key) {
|
|
|
1646 node = node->left;
|
|
|
1647 continue;
|
|
|
1648 }
|
|
|
1649
|
|
|
1650 if (hash > node->key) {
|
|
|
1651 node = node->right;
|
|
|
1652 continue;
|
|
|
1653 }
|
|
|
1654
|
|
274
|
1655 /* hash == node->key */
|
|
|
1656
|
|
|
1657 do {
|
|
272
|
1658 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1659
|
|
274
|
1660 rc = ngx_memn2cmp(id, sess_id->id, len, (size_t) node->data);
|
|
|
1661
|
|
|
1662 if (rc == 0) {
|
|
358
|
1663
|
|
|
1664 ngx_queue_remove(&sess_id->queue);
|
|
|
1665
|
|
|
1666 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1667
|
|
274
|
1668 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1669 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1670 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1671 #endif
|
|
272
|
1672 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1673
|
|
274
|
1674 goto done;
|
|
272
|
1675 }
|
|
274
|
1676
|
|
|
1677 node = (rc < 0) ? node->left : node->right;
|
|
|
1678
|
|
|
1679 } while (node != sentinel && hash == node->key);
|
|
|
1680
|
|
|
1681 break;
|
|
272
|
1682 }
|
|
|
1683
|
|
274
|
1684 done:
|
|
|
1685
|
|
272
|
1686 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1687 }
|
|
|
1688
|
|
|
1689
|
|
|
1690 static void
|
|
|
1691 ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
|
|
|
1692 ngx_slab_pool_t *shpool, ngx_uint_t n)
|
|
|
1693 {
|
|
358
|
1694 time_t now;
|
|
|
1695 ngx_queue_t *q;
|
|
274
|
1696 ngx_ssl_sess_id_t *sess_id;
|
|
272
|
1697
|
|
358
|
1698 now = ngx_time();
|
|
272
|
1699
|
|
|
1700 while (n < 3) {
|
|
|
1701
|
|
358
|
1702 if (ngx_queue_empty(&cache->expire_queue)) {
|
|
272
|
1703 return;
|
|
|
1704 }
|
|
|
1705
|
|
358
|
1706 q = ngx_queue_last(&cache->expire_queue);
|
|
|
1707
|
|
|
1708 sess_id = ngx_queue_data(q, ngx_ssl_sess_id_t, queue);
|
|
|
1709
|
|
|
1710 if (n++ != 0 && sess_id->expire > now) {
|
|
332
|
1711 return;
|
|
272
|
1712 }
|
|
|
1713
|
|
358
|
1714 ngx_queue_remove(q);
|
|
272
|
1715
|
|
|
1716 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
|
1717 "expire session: %08Xi", sess_id->node.key);
|
|
|
1718
|
|
358
|
1719 ngx_rbtree_delete(&cache->session_rbtree, &sess_id->node);
|
|
|
1720
|
|
274
|
1721 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1722 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1723 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1724 #endif
|
|
272
|
1725 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1726 }
|
|
|
1727 }
|
|
|
1728
|
|
|
1729
|
|
274
|
1730 static void
|
|
|
1731 ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
1732 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
1733 {
|
|
356
|
1734 ngx_rbtree_node_t **p;
|
|
|
1735 ngx_ssl_sess_id_t *sess_id, *sess_id_temp;
|
|
274
|
1736
|
|
|
1737 for ( ;; ) {
|
|
|
1738
|
|
|
1739 if (node->key < temp->key) {
|
|
|
1740
|
|
356
|
1741 p = &temp->left;
|
|
274
|
1742
|
|
|
1743 } else if (node->key > temp->key) {
|
|
|
1744
|
|
356
|
1745 p = &temp->right;
|
|
274
|
1746
|
|
|
1747 } else { /* node->key == temp->key */
|
|
|
1748
|
|
|
1749 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1750 sess_id_temp = (ngx_ssl_sess_id_t *) temp;
|
|
|
1751
|
|
356
|
1752 p = (ngx_memn2cmp(sess_id->id, sess_id_temp->id,
|
|
|
1753 (size_t) node->data, (size_t) temp->data)
|
|
|
1754 < 0) ? &temp->left : &temp->right;
|
|
274
|
1755 }
|
|
356
|
1756
|
|
|
1757 if (*p == sentinel) {
|
|
|
1758 break;
|
|
|
1759 }
|
|
|
1760
|
|
|
1761 temp = *p;
|
|
274
|
1762 }
|
|
|
1763
|
|
356
|
1764 *p = node;
|
|
274
|
1765 node->parent = temp;
|
|
|
1766 node->left = sentinel;
|
|
|
1767 node->right = sentinel;
|
|
|
1768 ngx_rbt_red(node);
|
|
276
|
1769 }
|
|
274
|
1770
|
|
|
1771
|
|
58
|
1772 void
|
|
|
1773 ngx_ssl_cleanup_ctx(void *data)
|
|
|
1774 {
|
|
138
|
1775 ngx_ssl_t *ssl = data;
|
|
58
|
1776
|
|
138
|
1777 SSL_CTX_free(ssl->ctx);
|
|
58
|
1778 }
|
|
90
|
1779
|
|
|
1780
|
|
220
|
1781 ngx_int_t
|
|
|
1782 ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1783 {
|
|
220
|
1784 s->data = (u_char *) SSL_get_version(c->ssl->connection);
|
|
|
1785 return NGX_OK;
|
|
160
|
1786 }
|
|
|
1787
|
|
|
1788
|
|
220
|
1789 ngx_int_t
|
|
|
1790 ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1791 {
|
|
220
|
1792 s->data = (u_char *) SSL_get_cipher_name(c->ssl->connection);
|
|
|
1793 return NGX_OK;
|
|
160
|
1794 }
|
|
|
1795
|
|
|
1796
|
|
196
|
1797 ngx_int_t
|
|
|
1798 ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1799 {
|
|
|
1800 char *p;
|
|
|
1801 size_t len;
|
|
|
1802 X509 *cert;
|
|
|
1803 X509_NAME *name;
|
|
|
1804
|
|
|
1805 s->len = 0;
|
|
|
1806
|
|
|
1807 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1808 if (cert == NULL) {
|
|
|
1809 return NGX_OK;
|
|
|
1810 }
|
|
|
1811
|
|
|
1812 name = X509_get_subject_name(cert);
|
|
|
1813 if (name == NULL) {
|
|
372
|
1814 X509_free(cert);
|
|
196
|
1815 return NGX_ERROR;
|
|
|
1816 }
|
|
|
1817
|
|
|
1818 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1819
|
|
|
1820 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1821
|
|
|
1822 s->len = len;
|
|
|
1823 s->data = ngx_palloc(pool, len);
|
|
|
1824 if (s->data == NULL) {
|
|
|
1825 OPENSSL_free(p);
|
|
372
|
1826 X509_free(cert);
|
|
196
|
1827 return NGX_ERROR;
|
|
|
1828 }
|
|
|
1829
|
|
|
1830 ngx_memcpy(s->data, p, len);
|
|
|
1831
|
|
|
1832 OPENSSL_free(p);
|
|
372
|
1833 X509_free(cert);
|
|
196
|
1834
|
|
|
1835 return NGX_OK;
|
|
|
1836 }
|
|
|
1837
|
|
|
1838
|
|
|
1839 ngx_int_t
|
|
|
1840 ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1841 {
|
|
|
1842 char *p;
|
|
|
1843 size_t len;
|
|
|
1844 X509 *cert;
|
|
|
1845 X509_NAME *name;
|
|
|
1846
|
|
|
1847 s->len = 0;
|
|
|
1848
|
|
|
1849 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1850 if (cert == NULL) {
|
|
|
1851 return NGX_OK;
|
|
|
1852 }
|
|
|
1853
|
|
|
1854 name = X509_get_issuer_name(cert);
|
|
|
1855 if (name == NULL) {
|
|
372
|
1856 X509_free(cert);
|
|
196
|
1857 return NGX_ERROR;
|
|
|
1858 }
|
|
|
1859
|
|
|
1860 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1861
|
|
|
1862 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1863
|
|
|
1864 s->len = len;
|
|
|
1865 s->data = ngx_palloc(pool, len);
|
|
|
1866 if (s->data == NULL) {
|
|
|
1867 OPENSSL_free(p);
|
|
372
|
1868 X509_free(cert);
|
|
196
|
1869 return NGX_ERROR;
|
|
|
1870 }
|
|
|
1871
|
|
|
1872 ngx_memcpy(s->data, p, len);
|
|
|
1873
|
|
|
1874 OPENSSL_free(p);
|
|
372
|
1875 X509_free(cert);
|
|
196
|
1876
|
|
|
1877 return NGX_OK;
|
|
|
1878 }
|
|
|
1879
|
|
|
1880
|
|
220
|
1881 ngx_int_t
|
|
|
1882 ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1883 {
|
|
|
1884 size_t len;
|
|
|
1885 X509 *cert;
|
|
|
1886 BIO *bio;
|
|
|
1887
|
|
|
1888 s->len = 0;
|
|
|
1889
|
|
|
1890 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1891 if (cert == NULL) {
|
|
|
1892 return NGX_OK;
|
|
|
1893 }
|
|
|
1894
|
|
|
1895 bio = BIO_new(BIO_s_mem());
|
|
|
1896 if (bio == NULL) {
|
|
372
|
1897 X509_free(cert);
|
|
220
|
1898 return NGX_ERROR;
|
|
|
1899 }
|
|
|
1900
|
|
|
1901 i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
|
|
|
1902 len = BIO_pending(bio);
|
|
|
1903
|
|
|
1904 s->len = len;
|
|
|
1905 s->data = ngx_palloc(pool, len);
|
|
|
1906 if (s->data == NULL) {
|
|
|
1907 BIO_free(bio);
|
|
372
|
1908 X509_free(cert);
|
|
220
|
1909 return NGX_ERROR;
|
|
|
1910 }
|
|
|
1911
|
|
|
1912 BIO_read(bio, s->data, len);
|
|
|
1913 BIO_free(bio);
|
|
372
|
1914 X509_free(cert);
|
|
220
|
1915
|
|
|
1916 return NGX_OK;
|
|
|
1917 }
|
|
|
1918
|
|
|
1919
|
|
90
|
1920 static void *
|
|
|
1921 ngx_openssl_create_conf(ngx_cycle_t *cycle)
|
|
|
1922 {
|
|
|
1923 ngx_openssl_conf_t *oscf;
|
|
126
|
1924
|
|
90
|
1925 oscf = ngx_pcalloc(cycle->pool, sizeof(ngx_openssl_conf_t));
|
|
|
1926 if (oscf == NULL) {
|
|
|
1927 return NGX_CONF_ERROR;
|
|
|
1928 }
|
|
126
|
1929
|
|
90
|
1930 /*
|
|
|
1931 * set by ngx_pcalloc():
|
|
126
|
1932 *
|
|
90
|
1933 * oscf->engine.len = 0;
|
|
|
1934 * oscf->engine.data = NULL;
|
|
126
|
1935 */
|
|
90
|
1936
|
|
|
1937 return oscf;
|
|
|
1938 }
|
|
|
1939
|
|
|
1940
|
|
|
1941 static char *
|
|
|
1942 ngx_openssl_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
|
1943 {
|
|
|
1944 #if (NGX_SSL_ENGINE)
|
|
|
1945 ngx_openssl_conf_t *oscf = conf;
|
|
120
|
1946
|
|
90
|
1947 ENGINE *engine;
|
|
|
1948
|
|
|
1949 if (oscf->engine.len == 0) {
|
|
|
1950 return NGX_CONF_OK;
|
|
|
1951 }
|
|
126
|
1952
|
|
90
|
1953 engine = ENGINE_by_id((const char *) oscf->engine.data);
|
|
|
1954
|
|
|
1955 if (engine == NULL) {
|
|
|
1956 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1957 "ENGINE_by_id(\"%V\") failed", &oscf->engine);
|
|
|
1958 return NGX_CONF_ERROR;
|
|
|
1959 }
|
|
|
1960
|
|
|
1961 if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
|
|
|
1962 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1963 "ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
|
|
|
1964 &oscf->engine);
|
|
|
1965 return NGX_CONF_ERROR;
|
|
|
1966 }
|
|
|
1967
|
|
|
1968 ENGINE_free(engine);
|
|
|
1969
|
|
|
1970 #endif
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1971
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1972 return NGX_CONF_OK;
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1973 }
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1974
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1975
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1976 #if !(NGX_SSL_ENGINE)
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1977
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1978 static char *
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1979 ngx_openssl_noengine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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1980 {
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1981 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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112
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1982 "\"ssl_engine\" directive is available only in "
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1983 "OpenSSL 0.9.7 and higher,");
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90
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1984
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1985 return NGX_CONF_ERROR;
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1986 }
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1987
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1988 #endif
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120
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1989
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1990
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1991 static void
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1992 ngx_openssl_exit(ngx_cycle_t *cycle)
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1993 {
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1994 #if (NGX_SSL_ENGINE)
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1995 ENGINE_cleanup();
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1996 #endif
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1997 }
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