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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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660
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4 * Copyright (C) Nginx, Inc.
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0
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_event.h>
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11
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90
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12
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13 typedef struct {
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446
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14 ngx_uint_t engine; /* unsigned engine:1; */
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90
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15 } ngx_openssl_conf_t;
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28
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16
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0
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17
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220
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18 static int ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store);
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542
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19 static void ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where,
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20 int ret);
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96
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21 static void ngx_ssl_handshake_handler(ngx_event_t *ev);
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38
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22 static ngx_int_t ngx_ssl_handle_recv(ngx_connection_t *c, int n);
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22
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23 static void ngx_ssl_write_handler(ngx_event_t *wev);
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24 static void ngx_ssl_read_handler(ngx_event_t *rev);
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126
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25 static void ngx_ssl_shutdown_handler(ngx_event_t *ev);
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96
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26 static void ngx_ssl_connection_error(ngx_connection_t *c, int sslerr,
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27 ngx_err_t err, char *text);
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358
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28 static void ngx_ssl_clear_error(ngx_log_t *log);
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272
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29
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634
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30 ngx_int_t ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data);
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272
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31 static int ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn,
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32 ngx_ssl_session_t *sess);
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33 static ngx_ssl_session_t *ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn,
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34 u_char *id, int len, int *copy);
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35 static void ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess);
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36 static void ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
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37 ngx_slab_pool_t *shpool, ngx_uint_t n);
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274
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38 static void ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
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39 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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272
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40
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90
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41 static void *ngx_openssl_create_conf(ngx_cycle_t *cycle);
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446
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42 static char *ngx_openssl_engine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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120
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43 static void ngx_openssl_exit(ngx_cycle_t *cycle);
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90
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44
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45
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46 static ngx_command_t ngx_openssl_commands[] = {
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47
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48 { ngx_string("ssl_engine"),
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49 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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446
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50 ngx_openssl_engine,
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90
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51 0,
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446
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52 0,
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90
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53 NULL },
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54
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55 ngx_null_command
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56 };
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57
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58
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59 static ngx_core_module_t ngx_openssl_module_ctx = {
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60 ngx_string("openssl"),
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61 ngx_openssl_create_conf,
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446
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62 NULL
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126
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63 };
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90
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64
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65
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66 ngx_module_t ngx_openssl_module = {
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67 NGX_MODULE_V1,
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68 &ngx_openssl_module_ctx, /* module context */
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69 ngx_openssl_commands, /* module directives */
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70 NGX_CORE_MODULE, /* module type */
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71 NULL, /* init master */
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72 NULL, /* init module */
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73 NULL, /* init process */
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74 NULL, /* init thread */
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75 NULL, /* exit thread */
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76 NULL, /* exit process */
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120
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77 ngx_openssl_exit, /* exit master */
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90
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78 NGX_MODULE_V1_PADDING
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96
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79 };
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80
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81
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272
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82 int ngx_ssl_connection_index;
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83 int ngx_ssl_server_conf_index;
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84 int ngx_ssl_session_cache_index;
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220
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85
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86
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38
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87 ngx_int_t
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88 ngx_ssl_init(ngx_log_t *log)
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0
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89 {
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272
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90 OPENSSL_config(NULL);
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91
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0
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92 SSL_library_init();
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93 SSL_load_error_strings();
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90
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94
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564
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95 OpenSSL_add_all_algorithms();
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96
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272
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97 ngx_ssl_connection_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
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98
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99 if (ngx_ssl_connection_index == -1) {
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100 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "SSL_get_ex_new_index() failed");
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101 return NGX_ERROR;
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102 }
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220
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103
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272
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104 ngx_ssl_server_conf_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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105 NULL);
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106 if (ngx_ssl_server_conf_index == -1) {
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107 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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108 "SSL_CTX_get_ex_new_index() failed");
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109 return NGX_ERROR;
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110 }
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111
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112 ngx_ssl_session_cache_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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113 NULL);
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114 if (ngx_ssl_session_cache_index == -1) {
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115 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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116 "SSL_CTX_get_ex_new_index() failed");
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220
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117 return NGX_ERROR;
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118 }
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119
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0
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120 return NGX_OK;
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121 }
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122
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123
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38
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124 ngx_int_t
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272
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125 ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
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96
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126 {
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126
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127 ssl->ctx = SSL_CTX_new(SSLv23_method());
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96
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128
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129 if (ssl->ctx == NULL) {
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130 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "SSL_CTX_new() failed");
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131 return NGX_ERROR;
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132 }
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133
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272
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134 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_server_conf_index, data) == 0) {
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135 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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136 "SSL_CTX_set_ex_data() failed");
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137 return NGX_ERROR;
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138 }
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139
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126
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140 /* client side options */
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141
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142 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_SESS_ID_BUG);
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143 SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_CHALLENGE_BUG);
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144
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145 /* server side options */
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112
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146
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147 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
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148 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
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149
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150 /* this option allow a potential SSL 2.0 rollback (CAN-2005-2969) */
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151 SSL_CTX_set_options(ssl->ctx, SSL_OP_MSIE_SSLV2_RSA_PADDING);
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152
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153 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
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154 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);
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155 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_BLOCK_PADDING_BUG);
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156
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157 SSL_CTX_set_options(ssl->ctx, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
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158
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380
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159 SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_DH_USE);
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96
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160
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658
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161 if (!(protocols & NGX_SSL_SSLv2)) {
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162 SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_SSLv2);
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163 }
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164 if (!(protocols & NGX_SSL_SSLv3)) {
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165 SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_SSLv3);
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166 }
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167 if (!(protocols & NGX_SSL_TLSv1)) {
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168 SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1);
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96
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169 }
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658
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170 #ifdef SSL_OP_NO_TLSv1_1
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171 if (!(protocols & NGX_SSL_TLSv1_1)) {
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172 SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_1);
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173 }
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174 #endif
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175 #ifdef SSL_OP_NO_TLSv1_2
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176 if (!(protocols & NGX_SSL_TLSv1_2)) {
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177 SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_2);
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178 }
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179 #endif
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96
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180
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644
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181 #ifdef SSL_OP_NO_COMPRESSION
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182 SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_COMPRESSION);
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183 #endif
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184
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185 #ifdef SSL_MODE_RELEASE_BUFFERS
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186 SSL_CTX_set_mode(ssl->ctx, SSL_MODE_RELEASE_BUFFERS);
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187 #endif
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188
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96
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189 SSL_CTX_set_read_ahead(ssl->ctx, 1);
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190
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542
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191 SSL_CTX_set_info_callback(ssl->ctx, ngx_ssl_info_callback);
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192
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96
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193 return NGX_OK;
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194 }
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195
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196
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197 ngx_int_t
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112
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198 ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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199 ngx_str_t *key)
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96
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200 {
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454
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201 if (ngx_conf_full_name(cf->cycle, cert, 1) != NGX_OK) {
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96
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202 return NGX_ERROR;
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203 }
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204
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112
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205 if (SSL_CTX_use_certificate_chain_file(ssl->ctx, (char *) cert->data)
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96
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206 == 0)
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207 {
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208 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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112
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209 "SSL_CTX_use_certificate_chain_file(\"%s\") failed",
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210 cert->data);
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211 return NGX_ERROR;
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212 }
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213
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454
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214 if (ngx_conf_full_name(cf->cycle, key, 1) != NGX_OK) {
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112
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215 return NGX_ERROR;
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216 }
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217
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218 if (SSL_CTX_use_PrivateKey_file(ssl->ctx, (char *) key->data,
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196
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219 SSL_FILETYPE_PEM)
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220 == 0)
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112
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221 {
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222 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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223 "SSL_CTX_use_PrivateKey_file(\"%s\") failed", key->data);
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96
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224 return NGX_ERROR;
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225 }
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226
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227 return NGX_OK;
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228 }
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229
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230
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231 ngx_int_t
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220
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232 ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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233 ngx_int_t depth)
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196
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234 {
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220
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235 STACK_OF(X509_NAME) *list;
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236
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237 SSL_CTX_set_verify(ssl->ctx, SSL_VERIFY_PEER, ngx_http_ssl_verify_callback);
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238
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239 SSL_CTX_set_verify_depth(ssl->ctx, depth);
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240
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241 if (cert->len == 0) {
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242 return NGX_OK;
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243 }
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244
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454
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245 if (ngx_conf_full_name(cf->cycle, cert, 1) != NGX_OK) {
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196
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246 return NGX_ERROR;
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247 }
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248
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249 if (SSL_CTX_load_verify_locations(ssl->ctx, (char *) cert->data, NULL)
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250 == 0)
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251 {
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252 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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253 "SSL_CTX_load_verify_locations(\"%s\") failed",
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254 cert->data);
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255 return NGX_ERROR;
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256 }
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257
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220
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258 list = SSL_load_client_CA_file((char *) cert->data);
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259
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260 if (list == NULL) {
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261 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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262 "SSL_load_client_CA_file(\"%s\") failed", cert->data);
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263 return NGX_ERROR;
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264 }
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265
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266 /*
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267 * before 0.9.7h and 0.9.8 SSL_load_client_CA_file()
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268 * always leaved an error in the error queue
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269 */
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270
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271 ERR_clear_error();
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272
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273 SSL_CTX_set_client_CA_list(ssl->ctx, list);
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274
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196
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275 return NGX_OK;
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276 }
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277
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278
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510
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279 ngx_int_t
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280 ngx_ssl_crl(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *crl)
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281 {
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282 X509_STORE *store;
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283 X509_LOOKUP *lookup;
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284
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285 if (crl->len == 0) {
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286 return NGX_OK;
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287 }
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288
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289 if (ngx_conf_full_name(cf->cycle, crl, 1) != NGX_OK) {
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290 return NGX_ERROR;
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291 }
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292
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293 store = SSL_CTX_get_cert_store(ssl->ctx);
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294
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295 if (store == NULL) {
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296 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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297 "SSL_CTX_get_cert_store() failed");
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298 return NGX_ERROR;
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299 }
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300
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301 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
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302
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303 if (lookup == NULL) {
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304 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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305 "X509_STORE_add_lookup() failed");
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306 return NGX_ERROR;
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307 }
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308
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309 if (X509_LOOKUP_load_file(lookup, (char *) crl->data, X509_FILETYPE_PEM)
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310 == 0)
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311 {
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312 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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313 "X509_LOOKUP_load_file(\"%s\") failed", crl->data);
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314 return NGX_ERROR;
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315 }
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316
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317 X509_STORE_set_flags(store,
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318 X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
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319
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320 return NGX_OK;
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321 }
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322
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323
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220
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324 static int
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325 ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store)
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326 {
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372
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327 #if (NGX_DEBUG)
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220
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328 char *subject, *issuer;
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329 int err, depth;
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330 X509 *cert;
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372
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331 X509_NAME *sname, *iname;
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220
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332 ngx_connection_t *c;
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333 ngx_ssl_conn_t *ssl_conn;
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334
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335 ssl_conn = X509_STORE_CTX_get_ex_data(x509_store,
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336 SSL_get_ex_data_X509_STORE_CTX_idx());
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337
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338 c = ngx_ssl_get_connection(ssl_conn);
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339
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340 cert = X509_STORE_CTX_get_current_cert(x509_store);
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341 err = X509_STORE_CTX_get_error(x509_store);
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342 depth = X509_STORE_CTX_get_error_depth(x509_store);
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343
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372
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344 sname = X509_get_subject_name(cert);
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345 subject = sname ? X509_NAME_oneline(sname, NULL, 0) : "(none)";
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346
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347 iname = X509_get_issuer_name(cert);
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348 issuer = iname ? X509_NAME_oneline(iname, NULL, 0) : "(none)";
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220
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349
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272
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350 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
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220
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351 "verify:%d, error:%d, depth:%d, "
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352 "subject:\"%s\",issuer: \"%s\"",
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353 ok, err, depth, subject, issuer);
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354
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372
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355 if (sname) {
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356 OPENSSL_free(subject);
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357 }
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358
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359 if (iname) {
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360 OPENSSL_free(issuer);
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361 }
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362 #endif
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363
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220
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364 return 1;
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365 }
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366
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367
|
|
542
|
368 static void
|
|
|
369 ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where, int ret)
|
|
|
370 {
|
|
|
371 ngx_connection_t *c;
|
|
|
372
|
|
|
373 if (where & SSL_CB_HANDSHAKE_START) {
|
|
|
374 c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
|
|
|
375
|
|
|
376 if (c->ssl->handshaked) {
|
|
|
377 c->ssl->renegotiation = 1;
|
|
|
378 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL renegotiation");
|
|
|
379 }
|
|
|
380 }
|
|
|
381 }
|
|
|
382
|
|
|
383
|
|
632
|
384 RSA *
|
|
|
385 ngx_ssl_rsa512_key_callback(SSL *ssl, int is_export, int key_length)
|
|
96
|
386 {
|
|
632
|
387 static RSA *key;
|
|
|
388
|
|
|
389 if (key_length == 512) {
|
|
|
390 if (key == NULL) {
|
|
|
391 key = RSA_generate_key(512, RSA_F4, NULL, NULL);
|
|
|
392 }
|
|
108
|
393 }
|
|
|
394
|
|
632
|
395 return key;
|
|
96
|
396 }
|
|
|
397
|
|
|
398
|
|
|
399 ngx_int_t
|
|
380
|
400 ngx_ssl_dhparam(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *file)
|
|
|
401 {
|
|
|
402 DH *dh;
|
|
|
403 BIO *bio;
|
|
|
404
|
|
|
405 /*
|
|
|
406 * -----BEGIN DH PARAMETERS-----
|
|
|
407 * MIGHAoGBALu8LcrYRnSQfEP89YDpz9vZWKP1aLQtSwju1OsPs1BMbAMCducQgAxc
|
|
|
408 * y7qokiYUxb7spWWl/fHSh6K8BJvmd4Bg6RqSp1fjBI9osHb302zI8pul34HcLKcl
|
|
|
409 * 7OZicMyaUDXYzs7vnqAnSmOrHlj6/UmI0PZdFGdX2gcd8EXP4WubAgEC
|
|
|
410 * -----END DH PARAMETERS-----
|
|
|
411 */
|
|
|
412
|
|
|
413 static unsigned char dh1024_p[] = {
|
|
|
414 0xBB, 0xBC, 0x2D, 0xCA, 0xD8, 0x46, 0x74, 0x90, 0x7C, 0x43, 0xFC, 0xF5,
|
|
|
415 0x80, 0xE9, 0xCF, 0xDB, 0xD9, 0x58, 0xA3, 0xF5, 0x68, 0xB4, 0x2D, 0x4B,
|
|
|
416 0x08, 0xEE, 0xD4, 0xEB, 0x0F, 0xB3, 0x50, 0x4C, 0x6C, 0x03, 0x02, 0x76,
|
|
|
417 0xE7, 0x10, 0x80, 0x0C, 0x5C, 0xCB, 0xBA, 0xA8, 0x92, 0x26, 0x14, 0xC5,
|
|
|
418 0xBE, 0xEC, 0xA5, 0x65, 0xA5, 0xFD, 0xF1, 0xD2, 0x87, 0xA2, 0xBC, 0x04,
|
|
|
419 0x9B, 0xE6, 0x77, 0x80, 0x60, 0xE9, 0x1A, 0x92, 0xA7, 0x57, 0xE3, 0x04,
|
|
|
420 0x8F, 0x68, 0xB0, 0x76, 0xF7, 0xD3, 0x6C, 0xC8, 0xF2, 0x9B, 0xA5, 0xDF,
|
|
|
421 0x81, 0xDC, 0x2C, 0xA7, 0x25, 0xEC, 0xE6, 0x62, 0x70, 0xCC, 0x9A, 0x50,
|
|
|
422 0x35, 0xD8, 0xCE, 0xCE, 0xEF, 0x9E, 0xA0, 0x27, 0x4A, 0x63, 0xAB, 0x1E,
|
|
|
423 0x58, 0xFA, 0xFD, 0x49, 0x88, 0xD0, 0xF6, 0x5D, 0x14, 0x67, 0x57, 0xDA,
|
|
|
424 0x07, 0x1D, 0xF0, 0x45, 0xCF, 0xE1, 0x6B, 0x9B
|
|
|
425 };
|
|
|
426
|
|
|
427 static unsigned char dh1024_g[] = { 0x02 };
|
|
|
428
|
|
|
429
|
|
|
430 if (file->len == 0) {
|
|
|
431
|
|
|
432 dh = DH_new();
|
|
|
433 if (dh == NULL) {
|
|
|
434 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "DH_new() failed");
|
|
|
435 return NGX_ERROR;
|
|
|
436 }
|
|
|
437
|
|
|
438 dh->p = BN_bin2bn(dh1024_p, sizeof(dh1024_p), NULL);
|
|
|
439 dh->g = BN_bin2bn(dh1024_g, sizeof(dh1024_g), NULL);
|
|
|
440
|
|
|
441 if (dh->p == NULL || dh->g == NULL) {
|
|
|
442 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "BN_bin2bn() failed");
|
|
|
443 DH_free(dh);
|
|
|
444 return NGX_ERROR;
|
|
|
445 }
|
|
|
446
|
|
|
447 SSL_CTX_set_tmp_dh(ssl->ctx, dh);
|
|
|
448
|
|
|
449 DH_free(dh);
|
|
|
450
|
|
|
451 return NGX_OK;
|
|
|
452 }
|
|
|
453
|
|
454
|
454 if (ngx_conf_full_name(cf->cycle, file, 1) != NGX_OK) {
|
|
380
|
455 return NGX_ERROR;
|
|
|
456 }
|
|
|
457
|
|
|
458 bio = BIO_new_file((char *) file->data, "r");
|
|
|
459 if (bio == NULL) {
|
|
|
460 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
461 "BIO_new_file(\"%s\") failed", file->data);
|
|
|
462 return NGX_ERROR;
|
|
|
463 }
|
|
|
464
|
|
|
465 dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
|
|
|
466 if (dh == NULL) {
|
|
|
467 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
468 "PEM_read_bio_DHparams(\"%s\") failed", file->data);
|
|
|
469 BIO_free(bio);
|
|
|
470 return NGX_ERROR;
|
|
|
471 }
|
|
|
472
|
|
|
473 SSL_CTX_set_tmp_dh(ssl->ctx, dh);
|
|
|
474
|
|
|
475 DH_free(dh);
|
|
|
476 BIO_free(bio);
|
|
|
477
|
|
|
478 return NGX_OK;
|
|
|
479 }
|
|
|
480
|
|
632
|
481 ngx_int_t
|
|
|
482 ngx_ssl_ecdh_curve(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *name)
|
|
|
483 {
|
|
|
484 #if OPENSSL_VERSION_NUMBER >= 0x0090800fL
|
|
|
485 #ifndef OPENSSL_NO_ECDH
|
|
|
486 int nid;
|
|
|
487 EC_KEY *ecdh;
|
|
|
488
|
|
|
489 /*
|
|
|
490 * Elliptic-Curve Diffie-Hellman parameters are either "named curves"
|
|
|
491 * from RFC 4492 section 5.1.1, or explicitely described curves over
|
|
|
492 * binary fields. OpenSSL only supports the "named curves", which provide
|
|
|
493 * maximum interoperability.
|
|
|
494 */
|
|
|
495
|
|
|
496 nid = OBJ_sn2nid((const char *) name->data);
|
|
|
497 if (nid == 0) {
|
|
|
498 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
499 "Unknown curve name \"%s\"", name->data);
|
|
|
500 return NGX_ERROR;
|
|
|
501 }
|
|
|
502
|
|
|
503 ecdh = EC_KEY_new_by_curve_name(nid);
|
|
|
504 if (ecdh == NULL) {
|
|
|
505 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
506 "Unable to create curve \"%s\"", name->data);
|
|
|
507 return NGX_ERROR;
|
|
|
508 }
|
|
|
509
|
|
|
510 SSL_CTX_set_tmp_ecdh(ssl->ctx, ecdh);
|
|
|
511
|
|
|
512 SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_ECDH_USE);
|
|
|
513
|
|
|
514 EC_KEY_free(ecdh);
|
|
|
515 #endif
|
|
|
516 #endif
|
|
|
517
|
|
|
518 return NGX_OK;
|
|
|
519 }
|
|
380
|
520
|
|
|
521 ngx_int_t
|
|
96
|
522 ngx_ssl_create_connection(ngx_ssl_t *ssl, ngx_connection_t *c, ngx_uint_t flags)
|
|
126
|
523 {
|
|
96
|
524 ngx_ssl_connection_t *sc;
|
|
0
|
525
|
|
96
|
526 sc = ngx_pcalloc(c->pool, sizeof(ngx_ssl_connection_t));
|
|
|
527 if (sc == NULL) {
|
|
0
|
528 return NGX_ERROR;
|
|
|
529 }
|
|
|
530
|
|
358
|
531 sc->buffer = ((flags & NGX_SSL_BUFFER) != 0);
|
|
0
|
532
|
|
96
|
533 sc->connection = SSL_new(ssl->ctx);
|
|
0
|
534
|
|
96
|
535 if (sc->connection == NULL) {
|
|
0
|
536 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_new() failed");
|
|
|
537 return NGX_ERROR;
|
|
|
538 }
|
|
|
539
|
|
96
|
540 if (SSL_set_fd(sc->connection, c->fd) == 0) {
|
|
0
|
541 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_fd() failed");
|
|
|
542 return NGX_ERROR;
|
|
|
543 }
|
|
|
544
|
|
126
|
545 if (flags & NGX_SSL_CLIENT) {
|
|
|
546 SSL_set_connect_state(sc->connection);
|
|
|
547
|
|
|
548 } else {
|
|
|
549 SSL_set_accept_state(sc->connection);
|
|
|
550 }
|
|
0
|
551
|
|
272
|
552 if (SSL_set_ex_data(sc->connection, ngx_ssl_connection_index, c) == 0) {
|
|
220
|
553 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
|
|
|
554 return NGX_ERROR;
|
|
|
555 }
|
|
|
556
|
|
96
|
557 c->ssl = sc;
|
|
0
|
558
|
|
|
559 return NGX_OK;
|
|
|
560 }
|
|
|
561
|
|
|
562
|
|
96
|
563 ngx_int_t
|
|
126
|
564 ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session)
|
|
|
565 {
|
|
|
566 if (session) {
|
|
|
567 if (SSL_set_session(c->ssl->connection, session) == 0) {
|
|
|
568 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_session() failed");
|
|
|
569 return NGX_ERROR;
|
|
|
570 }
|
|
|
571 }
|
|
|
572
|
|
|
573 return NGX_OK;
|
|
|
574 }
|
|
|
575
|
|
|
576
|
|
|
577 ngx_int_t
|
|
96
|
578 ngx_ssl_handshake(ngx_connection_t *c)
|
|
|
579 {
|
|
|
580 int n, sslerr;
|
|
|
581 ngx_err_t err;
|
|
|
582
|
|
358
|
583 ngx_ssl_clear_error(c->log);
|
|
|
584
|
|
96
|
585 n = SSL_do_handshake(c->ssl->connection);
|
|
|
586
|
|
126
|
587 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
|
|
96
|
588
|
|
|
589 if (n == 1) {
|
|
|
590
|
|
430
|
591 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
96
|
592 return NGX_ERROR;
|
|
|
593 }
|
|
|
594
|
|
430
|
595 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
96
|
596 return NGX_ERROR;
|
|
|
597 }
|
|
|
598
|
|
|
599 #if (NGX_DEBUG)
|
|
|
600 {
|
|
|
601 char buf[129], *s, *d;
|
|
612
|
602 #if OPENSSL_VERSION_NUMBER >= 0x10000000L
|
|
566
|
603 const
|
|
|
604 #endif
|
|
96
|
605 SSL_CIPHER *cipher;
|
|
|
606
|
|
|
607 cipher = SSL_get_current_cipher(c->ssl->connection);
|
|
|
608
|
|
|
609 if (cipher) {
|
|
|
610 SSL_CIPHER_description(cipher, &buf[1], 128);
|
|
|
611
|
|
|
612 for (s = &buf[1], d = buf; *s; s++) {
|
|
|
613 if (*s == ' ' && *d == ' ') {
|
|
|
614 continue;
|
|
|
615 }
|
|
|
616
|
|
|
617 if (*s == LF || *s == CR) {
|
|
|
618 continue;
|
|
|
619 }
|
|
|
620
|
|
|
621 *++d = *s;
|
|
|
622 }
|
|
|
623
|
|
|
624 if (*d != ' ') {
|
|
|
625 d++;
|
|
|
626 }
|
|
|
627
|
|
|
628 *d = '\0';
|
|
|
629
|
|
132
|
630 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
631 "SSL: %s, cipher: \"%s\"",
|
|
126
|
632 SSL_get_version(c->ssl->connection), &buf[1]);
|
|
96
|
633
|
|
|
634 if (SSL_session_reused(c->ssl->connection)) {
|
|
132
|
635 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
636 "SSL reused session");
|
|
|
637 }
|
|
|
638
|
|
|
639 } else {
|
|
|
640 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
641 "SSL no shared ciphers");
|
|
96
|
642 }
|
|
|
643 }
|
|
|
644 #endif
|
|
|
645
|
|
|
646 c->ssl->handshaked = 1;
|
|
|
647
|
|
|
648 c->recv = ngx_ssl_recv;
|
|
|
649 c->send = ngx_ssl_write;
|
|
126
|
650 c->recv_chain = ngx_ssl_recv_chain;
|
|
|
651 c->send_chain = ngx_ssl_send_chain;
|
|
96
|
652
|
|
542
|
653 /* initial handshake done, disable renegotiation (CVE-2009-3555) */
|
|
|
654 if (c->ssl->connection->s3) {
|
|
|
655 c->ssl->connection->s3->flags |= SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS;
|
|
|
656 }
|
|
|
657
|
|
96
|
658 return NGX_OK;
|
|
|
659 }
|
|
|
660
|
|
|
661 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
662
|
|
|
663 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
664
|
|
|
665 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
666 c->read->ready = 0;
|
|
|
667 c->read->handler = ngx_ssl_handshake_handler;
|
|
140
|
668 c->write->handler = ngx_ssl_handshake_handler;
|
|
96
|
669
|
|
430
|
670 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
96
|
671 return NGX_ERROR;
|
|
|
672 }
|
|
|
673
|
|
|
674 return NGX_AGAIN;
|
|
|
675 }
|
|
|
676
|
|
|
677 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
678 c->write->ready = 0;
|
|
140
|
679 c->read->handler = ngx_ssl_handshake_handler;
|
|
96
|
680 c->write->handler = ngx_ssl_handshake_handler;
|
|
|
681
|
|
430
|
682 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
96
|
683 return NGX_ERROR;
|
|
|
684 }
|
|
|
685
|
|
|
686 return NGX_AGAIN;
|
|
|
687 }
|
|
|
688
|
|
|
689 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
690
|
|
|
691 c->ssl->no_wait_shutdown = 1;
|
|
|
692 c->ssl->no_send_shutdown = 1;
|
|
140
|
693 c->read->eof = 1;
|
|
96
|
694
|
|
|
695 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
|
696 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
126
|
697 "peer closed connection in SSL handshake");
|
|
96
|
698
|
|
|
699 return NGX_ERROR;
|
|
|
700 }
|
|
|
701
|
|
140
|
702 c->read->error = 1;
|
|
|
703
|
|
96
|
704 ngx_ssl_connection_error(c, sslerr, err, "SSL_do_handshake() failed");
|
|
|
705
|
|
|
706 return NGX_ERROR;
|
|
|
707 }
|
|
|
708
|
|
|
709
|
|
|
710 static void
|
|
|
711 ngx_ssl_handshake_handler(ngx_event_t *ev)
|
|
|
712 {
|
|
|
713 ngx_connection_t *c;
|
|
|
714
|
|
|
715 c = ev->data;
|
|
|
716
|
|
98
|
717 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
718 "SSL handshake handler: %d", ev->write);
|
|
96
|
719
|
|
140
|
720 if (ev->timedout) {
|
|
|
721 c->ssl->handler(c);
|
|
|
722 return;
|
|
|
723 }
|
|
|
724
|
|
96
|
725 if (ngx_ssl_handshake(c) == NGX_AGAIN) {
|
|
|
726 return;
|
|
|
727 }
|
|
|
728
|
|
|
729 c->ssl->handler(c);
|
|
|
730 }
|
|
|
731
|
|
|
732
|
|
38
|
733 ssize_t
|
|
126
|
734 ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl)
|
|
|
735 {
|
|
294
|
736 u_char *last;
|
|
126
|
737 ssize_t n, bytes;
|
|
|
738 ngx_buf_t *b;
|
|
|
739
|
|
|
740 bytes = 0;
|
|
|
741
|
|
294
|
742 b = cl->buf;
|
|
|
743 last = b->last;
|
|
|
744
|
|
|
745 for ( ;; ) {
|
|
|
746
|
|
|
747 n = ngx_ssl_recv(c, last, b->end - last);
|
|
126
|
748
|
|
|
749 if (n > 0) {
|
|
294
|
750 last += n;
|
|
126
|
751 bytes += n;
|
|
|
752
|
|
294
|
753 if (last == b->end) {
|
|
126
|
754 cl = cl->next;
|
|
294
|
755
|
|
|
756 if (cl == NULL) {
|
|
|
757 return bytes;
|
|
|
758 }
|
|
|
759
|
|
|
760 b = cl->buf;
|
|
|
761 last = b->last;
|
|
126
|
762 }
|
|
|
763
|
|
|
764 continue;
|
|
|
765 }
|
|
|
766
|
|
|
767 if (bytes) {
|
|
382
|
768
|
|
|
769 if (n == 0 || n == NGX_ERROR) {
|
|
|
770 c->read->ready = 1;
|
|
|
771 }
|
|
|
772
|
|
126
|
773 return bytes;
|
|
|
774 }
|
|
|
775
|
|
|
776 return n;
|
|
|
777 }
|
|
|
778 }
|
|
|
779
|
|
|
780
|
|
|
781 ssize_t
|
|
38
|
782 ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size)
|
|
0
|
783 {
|
|
38
|
784 int n, bytes;
|
|
|
785
|
|
|
786 if (c->ssl->last == NGX_ERROR) {
|
|
330
|
787 c->read->error = 1;
|
|
38
|
788 return NGX_ERROR;
|
|
|
789 }
|
|
|
790
|
|
126
|
791 if (c->ssl->last == NGX_DONE) {
|
|
330
|
792 c->read->ready = 0;
|
|
|
793 c->read->eof = 1;
|
|
126
|
794 return 0;
|
|
|
795 }
|
|
|
796
|
|
38
|
797 bytes = 0;
|
|
0
|
798
|
|
358
|
799 ngx_ssl_clear_error(c->log);
|
|
|
800
|
|
38
|
801 /*
|
|
|
802 * SSL_read() may return data in parts, so try to read
|
|
|
803 * until SSL_read() would return no data
|
|
|
804 */
|
|
|
805
|
|
|
806 for ( ;; ) {
|
|
0
|
807
|
|
92
|
808 n = SSL_read(c->ssl->connection, buf, size);
|
|
38
|
809
|
|
126
|
810 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_read: %d", n);
|
|
0
|
811
|
|
38
|
812 if (n > 0) {
|
|
|
813 bytes += n;
|
|
|
814 }
|
|
|
815
|
|
|
816 c->ssl->last = ngx_ssl_handle_recv(c, n);
|
|
|
817
|
|
330
|
818 if (c->ssl->last == NGX_OK) {
|
|
|
819
|
|
|
820 size -= n;
|
|
|
821
|
|
|
822 if (size == 0) {
|
|
38
|
823 return bytes;
|
|
126
|
824 }
|
|
38
|
825
|
|
330
|
826 buf += n;
|
|
|
827
|
|
|
828 continue;
|
|
|
829 }
|
|
|
830
|
|
|
831 if (bytes) {
|
|
|
832 return bytes;
|
|
|
833 }
|
|
|
834
|
|
|
835 switch (c->ssl->last) {
|
|
|
836
|
|
|
837 case NGX_DONE:
|
|
|
838 c->read->ready = 0;
|
|
|
839 c->read->eof = 1;
|
|
|
840 return 0;
|
|
|
841
|
|
|
842 case NGX_ERROR:
|
|
|
843 c->read->error = 1;
|
|
|
844
|
|
|
845 /* fall thruogh */
|
|
|
846
|
|
|
847 case NGX_AGAIN:
|
|
126
|
848 return c->ssl->last;
|
|
28
|
849 }
|
|
38
|
850 }
|
|
|
851 }
|
|
|
852
|
|
|
853
|
|
|
854 static ngx_int_t
|
|
|
855 ngx_ssl_handle_recv(ngx_connection_t *c, int n)
|
|
|
856 {
|
|
96
|
857 int sslerr;
|
|
|
858 ngx_err_t err;
|
|
38
|
859
|
|
542
|
860 if (c->ssl->renegotiation) {
|
|
|
861 /*
|
|
|
862 * disable renegotiation (CVE-2009-3555):
|
|
|
863 * OpenSSL (at least up to 0.9.8l) does not handle disabled
|
|
|
864 * renegotiation gracefully, so drop connection here
|
|
|
865 */
|
|
|
866
|
|
|
867 ngx_log_error(NGX_LOG_NOTICE, c->log, 0, "SSL renegotiation disabled");
|
|
|
868
|
|
646
|
869 while (ERR_peek_error()) {
|
|
|
870 ngx_ssl_error(NGX_LOG_DEBUG, c->log, 0,
|
|
|
871 "ignoring stale global SSL error");
|
|
|
872 }
|
|
|
873
|
|
|
874 ERR_clear_error();
|
|
|
875
|
|
542
|
876 c->ssl->no_wait_shutdown = 1;
|
|
|
877 c->ssl->no_send_shutdown = 1;
|
|
|
878
|
|
|
879 return NGX_ERROR;
|
|
|
880 }
|
|
|
881
|
|
38
|
882 if (n > 0) {
|
|
28
|
883
|
|
22
|
884 if (c->ssl->saved_write_handler) {
|
|
|
885
|
|
58
|
886 c->write->handler = c->ssl->saved_write_handler;
|
|
22
|
887 c->ssl->saved_write_handler = NULL;
|
|
|
888 c->write->ready = 1;
|
|
|
889
|
|
430
|
890 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
22
|
891 return NGX_ERROR;
|
|
|
892 }
|
|
|
893
|
|
112
|
894 ngx_post_event(c->write, &ngx_posted_events);
|
|
22
|
895 }
|
|
|
896
|
|
38
|
897 return NGX_OK;
|
|
0
|
898 }
|
|
|
899
|
|
92
|
900 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
901
|
|
|
902 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
903
|
|
|
904 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
905
|
|
|
906 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
4
|
907 c->read->ready = 0;
|
|
0
|
908 return NGX_AGAIN;
|
|
|
909 }
|
|
|
910
|
|
|
911 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
88
|
912
|
|
96
|
913 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
914 "peer started SSL renegotiation");
|
|
22
|
915
|
|
|
916 c->write->ready = 0;
|
|
|
917
|
|
430
|
918 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
22
|
919 return NGX_ERROR;
|
|
|
920 }
|
|
|
921
|
|
|
922 /*
|
|
|
923 * we do not set the timer because there is already the read event timer
|
|
|
924 */
|
|
|
925
|
|
|
926 if (c->ssl->saved_write_handler == NULL) {
|
|
58
|
927 c->ssl->saved_write_handler = c->write->handler;
|
|
|
928 c->write->handler = ngx_ssl_write_handler;
|
|
22
|
929 }
|
|
|
930
|
|
0
|
931 return NGX_AGAIN;
|
|
|
932 }
|
|
|
933
|
|
96
|
934 c->ssl->no_wait_shutdown = 1;
|
|
|
935 c->ssl->no_send_shutdown = 1;
|
|
0
|
936
|
|
|
937 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
126
|
938 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
939 "peer shutdown SSL cleanly");
|
|
|
940 return NGX_DONE;
|
|
0
|
941 }
|
|
|
942
|
|
96
|
943 ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");
|
|
0
|
944
|
|
|
945 return NGX_ERROR;
|
|
|
946 }
|
|
|
947
|
|
|
948
|
|
38
|
949 static void
|
|
|
950 ngx_ssl_write_handler(ngx_event_t *wev)
|
|
22
|
951 {
|
|
|
952 ngx_connection_t *c;
|
|
|
953
|
|
|
954 c = wev->data;
|
|
96
|
955
|
|
58
|
956 c->read->handler(c->read);
|
|
22
|
957 }
|
|
|
958
|
|
|
959
|
|
0
|
960 /*
|
|
|
961 * OpenSSL has no SSL_writev() so we copy several bufs into our 16K buffer
|
|
22
|
962 * before the SSL_write() call to decrease a SSL overhead.
|
|
0
|
963 *
|
|
|
964 * Besides for protocols such as HTTP it is possible to always buffer
|
|
|
965 * the output to decrease a SSL overhead some more.
|
|
|
966 */
|
|
|
967
|
|
38
|
968 ngx_chain_t *
|
|
|
969 ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
|
|
0
|
970 {
|
|
|
971 int n;
|
|
|
972 ngx_uint_t flush;
|
|
|
973 ssize_t send, size;
|
|
|
974 ngx_buf_t *buf;
|
|
|
975
|
|
416
|
976 if (!c->ssl->buffer) {
|
|
0
|
977
|
|
126
|
978 while (in) {
|
|
|
979 if (ngx_buf_special(in->buf)) {
|
|
|
980 in = in->next;
|
|
|
981 continue;
|
|
|
982 }
|
|
0
|
983
|
|
126
|
984 n = ngx_ssl_write(c, in->buf->pos, in->buf->last - in->buf->pos);
|
|
|
985
|
|
|
986 if (n == NGX_ERROR) {
|
|
|
987 return NGX_CHAIN_ERROR;
|
|
|
988 }
|
|
0
|
989
|
|
126
|
990 if (n == NGX_AGAIN) {
|
|
146
|
991 c->buffered |= NGX_SSL_BUFFERED;
|
|
126
|
992 return in;
|
|
|
993 }
|
|
|
994
|
|
|
995 in->buf->pos += n;
|
|
|
996
|
|
|
997 if (in->buf->pos == in->buf->last) {
|
|
|
998 in = in->next;
|
|
|
999 }
|
|
0
|
1000 }
|
|
|
1001
|
|
|
1002 return in;
|
|
|
1003 }
|
|
|
1004
|
|
22
|
1005
|
|
632
|
1006 /* the maximum limit size is the maximum int32_t value - the page size */
|
|
|
1007
|
|
|
1008 if (limit == 0 || limit > (off_t) (NGX_MAX_INT32_VALUE - ngx_pagesize)) {
|
|
|
1009 limit = NGX_MAX_INT32_VALUE - ngx_pagesize;
|
|
22
|
1010 }
|
|
|
1011
|
|
126
|
1012 buf = c->ssl->buf;
|
|
358
|
1013
|
|
|
1014 if (buf == NULL) {
|
|
|
1015 buf = ngx_create_temp_buf(c->pool, NGX_SSL_BUFSIZE);
|
|
|
1016 if (buf == NULL) {
|
|
|
1017 return NGX_CHAIN_ERROR;
|
|
|
1018 }
|
|
|
1019
|
|
|
1020 c->ssl->buf = buf;
|
|
|
1021 }
|
|
|
1022
|
|
|
1023 if (buf->start == NULL) {
|
|
|
1024 buf->start = ngx_palloc(c->pool, NGX_SSL_BUFSIZE);
|
|
|
1025 if (buf->start == NULL) {
|
|
|
1026 return NGX_CHAIN_ERROR;
|
|
|
1027 }
|
|
|
1028
|
|
|
1029 buf->pos = buf->start;
|
|
|
1030 buf->last = buf->start;
|
|
|
1031 buf->end = buf->start + NGX_SSL_BUFSIZE;
|
|
|
1032 }
|
|
|
1033
|
|
0
|
1034 send = 0;
|
|
|
1035 flush = (in == NULL) ? 1 : 0;
|
|
|
1036
|
|
|
1037 for ( ;; ) {
|
|
|
1038
|
|
540
|
1039 while (in && buf->last < buf->end && send < limit) {
|
|
132
|
1040 if (in->buf->last_buf || in->buf->flush) {
|
|
0
|
1041 flush = 1;
|
|
|
1042 }
|
|
|
1043
|
|
|
1044 if (ngx_buf_special(in->buf)) {
|
|
|
1045 in = in->next;
|
|
|
1046 continue;
|
|
|
1047 }
|
|
|
1048
|
|
|
1049 size = in->buf->last - in->buf->pos;
|
|
|
1050
|
|
|
1051 if (size > buf->end - buf->last) {
|
|
|
1052 size = buf->end - buf->last;
|
|
|
1053 }
|
|
|
1054
|
|
|
1055 if (send + size > limit) {
|
|
126
|
1056 size = (ssize_t) (limit - send);
|
|
0
|
1057 flush = 1;
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1061 "SSL buf copy: %d", size);
|
|
|
1062
|
|
|
1063 ngx_memcpy(buf->last, in->buf->pos, size);
|
|
|
1064
|
|
|
1065 buf->last += size;
|
|
|
1066 in->buf->pos += size;
|
|
540
|
1067 send += size;
|
|
126
|
1068
|
|
0
|
1069 if (in->buf->pos == in->buf->last) {
|
|
|
1070 in = in->next;
|
|
|
1071 }
|
|
|
1072 }
|
|
|
1073
|
|
|
1074 size = buf->last - buf->pos;
|
|
|
1075
|
|
|
1076 if (!flush && buf->last < buf->end && c->ssl->buffer) {
|
|
|
1077 break;
|
|
|
1078 }
|
|
|
1079
|
|
|
1080 n = ngx_ssl_write(c, buf->pos, size);
|
|
|
1081
|
|
|
1082 if (n == NGX_ERROR) {
|
|
|
1083 return NGX_CHAIN_ERROR;
|
|
|
1084 }
|
|
|
1085
|
|
60
|
1086 if (n == NGX_AGAIN) {
|
|
146
|
1087 c->buffered |= NGX_SSL_BUFFERED;
|
|
60
|
1088 return in;
|
|
0
|
1089 }
|
|
|
1090
|
|
|
1091 buf->pos += n;
|
|
|
1092 c->sent += n;
|
|
|
1093
|
|
|
1094 if (n < size) {
|
|
|
1095 break;
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 if (buf->pos == buf->last) {
|
|
|
1099 buf->pos = buf->start;
|
|
|
1100 buf->last = buf->start;
|
|
|
1101 }
|
|
|
1102
|
|
|
1103 if (in == NULL || send == limit) {
|
|
|
1104 break;
|
|
|
1105 }
|
|
|
1106 }
|
|
|
1107
|
|
146
|
1108 if (buf->pos < buf->last) {
|
|
|
1109 c->buffered |= NGX_SSL_BUFFERED;
|
|
|
1110
|
|
|
1111 } else {
|
|
|
1112 c->buffered &= ~NGX_SSL_BUFFERED;
|
|
|
1113 }
|
|
0
|
1114
|
|
|
1115 return in;
|
|
|
1116 }
|
|
|
1117
|
|
|
1118
|
|
88
|
1119 ssize_t
|
|
38
|
1120 ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size)
|
|
0
|
1121 {
|
|
96
|
1122 int n, sslerr;
|
|
|
1123 ngx_err_t err;
|
|
0
|
1124
|
|
358
|
1125 ngx_ssl_clear_error(c->log);
|
|
|
1126
|
|
0
|
1127 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %d", size);
|
|
|
1128
|
|
92
|
1129 n = SSL_write(c->ssl->connection, data, size);
|
|
0
|
1130
|
|
|
1131 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_write: %d", n);
|
|
|
1132
|
|
|
1133 if (n > 0) {
|
|
88
|
1134
|
|
22
|
1135 if (c->ssl->saved_read_handler) {
|
|
|
1136
|
|
58
|
1137 c->read->handler = c->ssl->saved_read_handler;
|
|
22
|
1138 c->ssl->saved_read_handler = NULL;
|
|
|
1139 c->read->ready = 1;
|
|
|
1140
|
|
430
|
1141 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
22
|
1142 return NGX_ERROR;
|
|
|
1143 }
|
|
|
1144
|
|
112
|
1145 ngx_post_event(c->read, &ngx_posted_events);
|
|
22
|
1146 }
|
|
|
1147
|
|
0
|
1148 return n;
|
|
|
1149 }
|
|
|
1150
|
|
92
|
1151 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
1152
|
|
|
1153 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
1154
|
|
|
1155 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
1156
|
|
|
1157 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
1158 c->write->ready = 0;
|
|
|
1159 return NGX_AGAIN;
|
|
|
1160 }
|
|
|
1161
|
|
|
1162 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
2
|
1163
|
|
96
|
1164 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
1165 "peer started SSL renegotiation");
|
|
22
|
1166
|
|
|
1167 c->read->ready = 0;
|
|
|
1168
|
|
430
|
1169 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
22
|
1170 return NGX_ERROR;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 /*
|
|
|
1174 * we do not set the timer because there is already
|
|
|
1175 * the write event timer
|
|
|
1176 */
|
|
|
1177
|
|
|
1178 if (c->ssl->saved_read_handler == NULL) {
|
|
58
|
1179 c->ssl->saved_read_handler = c->read->handler;
|
|
|
1180 c->read->handler = ngx_ssl_read_handler;
|
|
22
|
1181 }
|
|
|
1182
|
|
0
|
1183 return NGX_AGAIN;
|
|
|
1184 }
|
|
|
1185
|
|
96
|
1186 c->ssl->no_wait_shutdown = 1;
|
|
|
1187 c->ssl->no_send_shutdown = 1;
|
|
140
|
1188 c->write->error = 1;
|
|
92
|
1189
|
|
96
|
1190 ngx_ssl_connection_error(c, sslerr, err, "SSL_write() failed");
|
|
0
|
1191
|
|
|
1192 return NGX_ERROR;
|
|
|
1193 }
|
|
|
1194
|
|
|
1195
|
|
38
|
1196 static void
|
|
|
1197 ngx_ssl_read_handler(ngx_event_t *rev)
|
|
22
|
1198 {
|
|
|
1199 ngx_connection_t *c;
|
|
|
1200
|
|
|
1201 c = rev->data;
|
|
96
|
1202
|
|
58
|
1203 c->write->handler(c->write);
|
|
22
|
1204 }
|
|
|
1205
|
|
|
1206
|
|
358
|
1207 void
|
|
|
1208 ngx_ssl_free_buffer(ngx_connection_t *c)
|
|
|
1209 {
|
|
360
|
1210 if (c->ssl->buf && c->ssl->buf->start) {
|
|
|
1211 if (ngx_pfree(c->pool, c->ssl->buf->start) == NGX_OK) {
|
|
|
1212 c->ssl->buf->start = NULL;
|
|
|
1213 }
|
|
358
|
1214 }
|
|
|
1215 }
|
|
|
1216
|
|
|
1217
|
|
38
|
1218 ngx_int_t
|
|
|
1219 ngx_ssl_shutdown(ngx_connection_t *c)
|
|
0
|
1220 {
|
|
358
|
1221 int n, sslerr, mode;
|
|
|
1222 ngx_err_t err;
|
|
0
|
1223
|
|
126
|
1224 if (c->timedout) {
|
|
96
|
1225 mode = SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN;
|
|
636
|
1226 SSL_set_quiet_shutdown(c->ssl->connection, 1);
|
|
0
|
1227
|
|
96
|
1228 } else {
|
|
|
1229 mode = SSL_get_shutdown(c->ssl->connection);
|
|
22
|
1230
|
|
96
|
1231 if (c->ssl->no_wait_shutdown) {
|
|
|
1232 mode |= SSL_RECEIVED_SHUTDOWN;
|
|
0
|
1233 }
|
|
|
1234
|
|
96
|
1235 if (c->ssl->no_send_shutdown) {
|
|
|
1236 mode |= SSL_SENT_SHUTDOWN;
|
|
0
|
1237 }
|
|
636
|
1238
|
|
|
1239 if (c->ssl->no_wait_shutdown && c->ssl->no_send_shutdown) {
|
|
|
1240 SSL_set_quiet_shutdown(c->ssl->connection, 1);
|
|
|
1241 }
|
|
0
|
1242 }
|
|
|
1243
|
|
96
|
1244 SSL_set_shutdown(c->ssl->connection, mode);
|
|
|
1245
|
|
358
|
1246 ngx_ssl_clear_error(c->log);
|
|
|
1247
|
|
|
1248 n = SSL_shutdown(c->ssl->connection);
|
|
|
1249
|
|
|
1250 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_shutdown: %d", n);
|
|
|
1251
|
|
10
|
1252 sslerr = 0;
|
|
0
|
1253
|
|
364
|
1254 /* SSL_shutdown() never returns -1, on error it returns 0 */
|
|
|
1255
|
|
|
1256 if (n != 1 && ERR_peek_error()) {
|
|
92
|
1257 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
1258
|
|
|
1259 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1260 "SSL_get_error: %d", sslerr);
|
|
|
1261 }
|
|
|
1262
|
|
364
|
1263 if (n == 1 || sslerr == 0 || sslerr == SSL_ERROR_ZERO_RETURN) {
|
|
358
|
1264 SSL_free(c->ssl->connection);
|
|
|
1265 c->ssl = NULL;
|
|
|
1266
|
|
|
1267 return NGX_OK;
|
|
|
1268 }
|
|
|
1269
|
|
|
1270 if (sslerr == SSL_ERROR_WANT_READ || sslerr == SSL_ERROR_WANT_WRITE) {
|
|
126
|
1271 c->read->handler = ngx_ssl_shutdown_handler;
|
|
138
|
1272 c->write->handler = ngx_ssl_shutdown_handler;
|
|
126
|
1273
|
|
430
|
1274 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
0
|
1275 return NGX_ERROR;
|
|
|
1276 }
|
|
|
1277
|
|
430
|
1278 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
0
|
1279 return NGX_ERROR;
|
|
|
1280 }
|
|
|
1281
|
|
358
|
1282 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
138
|
1283 ngx_add_timer(c->read, 30000);
|
|
|
1284 }
|
|
|
1285
|
|
0
|
1286 return NGX_AGAIN;
|
|
|
1287 }
|
|
|
1288
|
|
140
|
1289 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
1290
|
|
|
1291 ngx_ssl_connection_error(c, sslerr, err, "SSL_shutdown() failed");
|
|
0
|
1292
|
|
92
|
1293 SSL_free(c->ssl->connection);
|
|
|
1294 c->ssl = NULL;
|
|
|
1295
|
|
0
|
1296 return NGX_ERROR;
|
|
|
1297 }
|
|
|
1298
|
|
|
1299
|
|
96
|
1300 static void
|
|
126
|
1301 ngx_ssl_shutdown_handler(ngx_event_t *ev)
|
|
|
1302 {
|
|
|
1303 ngx_connection_t *c;
|
|
|
1304 ngx_connection_handler_pt handler;
|
|
|
1305
|
|
|
1306 c = ev->data;
|
|
|
1307 handler = c->ssl->handler;
|
|
|
1308
|
|
|
1309 if (ev->timedout) {
|
|
|
1310 c->timedout = 1;
|
|
|
1311 }
|
|
|
1312
|
|
272
|
1313 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "SSL shutdown handler");
|
|
126
|
1314
|
|
|
1315 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
1316 return;
|
|
|
1317 }
|
|
|
1318
|
|
|
1319 handler(c);
|
|
|
1320 }
|
|
|
1321
|
|
|
1322
|
|
|
1323 static void
|
|
96
|
1324 ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
|
|
|
1325 char *text)
|
|
|
1326 {
|
|
364
|
1327 int n;
|
|
96
|
1328 ngx_uint_t level;
|
|
|
1329
|
|
|
1330 level = NGX_LOG_CRIT;
|
|
|
1331
|
|
|
1332 if (sslerr == SSL_ERROR_SYSCALL) {
|
|
|
1333
|
|
|
1334 if (err == NGX_ECONNRESET
|
|
|
1335 || err == NGX_EPIPE
|
|
|
1336 || err == NGX_ENOTCONN
|
|
138
|
1337 || err == NGX_ETIMEDOUT
|
|
96
|
1338 || err == NGX_ECONNREFUSED
|
|
364
|
1339 || err == NGX_ENETDOWN
|
|
|
1340 || err == NGX_ENETUNREACH
|
|
|
1341 || err == NGX_EHOSTDOWN
|
|
96
|
1342 || err == NGX_EHOSTUNREACH)
|
|
|
1343 {
|
|
|
1344 switch (c->log_error) {
|
|
|
1345
|
|
|
1346 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1347 case NGX_ERROR_INFO:
|
|
|
1348 level = NGX_LOG_INFO;
|
|
|
1349 break;
|
|
|
1350
|
|
|
1351 case NGX_ERROR_ERR:
|
|
|
1352 level = NGX_LOG_ERR;
|
|
|
1353 break;
|
|
|
1354
|
|
|
1355 default:
|
|
|
1356 break;
|
|
|
1357 }
|
|
|
1358 }
|
|
364
|
1359
|
|
|
1360 } else if (sslerr == SSL_ERROR_SSL) {
|
|
|
1361
|
|
|
1362 n = ERR_GET_REASON(ERR_peek_error());
|
|
|
1363
|
|
|
1364 /* handshake failures */
|
|
646
|
1365 if (n == SSL_R_BAD_CHANGE_CIPHER_SPEC /* 103 */
|
|
|
1366 || n == SSL_R_BLOCK_CIPHER_PAD_IS_WRONG /* 129 */
|
|
592
|
1367 || n == SSL_R_DIGEST_CHECK_FAILED /* 149 */
|
|
646
|
1368 || n == SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST /* 151 */
|
|
|
1369 || n == SSL_R_EXCESSIVE_MESSAGE_SIZE /* 152 */
|
|
564
|
1370 || n == SSL_R_LENGTH_MISMATCH /* 159 */
|
|
420
|
1371 || n == SSL_R_NO_CIPHERS_PASSED /* 182 */
|
|
564
|
1372 || n == SSL_R_NO_CIPHERS_SPECIFIED /* 183 */
|
|
646
|
1373 || n == SSL_R_NO_COMPRESSION_SPECIFIED /* 187 */
|
|
420
|
1374 || n == SSL_R_NO_SHARED_CIPHER /* 193 */
|
|
564
|
1375 || n == SSL_R_RECORD_LENGTH_MISMATCH /* 213 */
|
|
646
|
1376 #ifdef SSL_R_PARSE_TLSEXT
|
|
|
1377 || n == SSL_R_PARSE_TLSEXT /* 227 */
|
|
|
1378 #endif
|
|
420
|
1379 || n == SSL_R_UNEXPECTED_MESSAGE /* 244 */
|
|
|
1380 || n == SSL_R_UNEXPECTED_RECORD /* 245 */
|
|
564
|
1381 || n == SSL_R_UNKNOWN_ALERT_TYPE /* 246 */
|
|
552
|
1382 || n == SSL_R_UNKNOWN_PROTOCOL /* 252 */
|
|
420
|
1383 || n == SSL_R_WRONG_VERSION_NUMBER /* 267 */
|
|
|
1384 || n == SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC /* 281 */
|
|
646
|
1385 #ifdef SSL_R_RENEGOTIATE_EXT_TOO_LONG
|
|
|
1386 || n == SSL_R_RENEGOTIATE_EXT_TOO_LONG /* 335 */
|
|
|
1387 || n == SSL_R_RENEGOTIATION_ENCODING_ERR /* 336 */
|
|
|
1388 || n == SSL_R_RENEGOTIATION_MISMATCH /* 337 */
|
|
|
1389 #endif
|
|
|
1390 #ifdef SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED
|
|
|
1391 || n == SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED /* 338 */
|
|
|
1392 #endif
|
|
|
1393 #ifdef SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING
|
|
|
1394 || n == SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING /* 345 */
|
|
|
1395 #endif
|
|
364
|
1396 || n == 1000 /* SSL_R_SSLV3_ALERT_CLOSE_NOTIFY */
|
|
420
|
1397 || n == SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE /* 1010 */
|
|
|
1398 || n == SSL_R_SSLV3_ALERT_BAD_RECORD_MAC /* 1020 */
|
|
|
1399 || n == SSL_R_TLSV1_ALERT_DECRYPTION_FAILED /* 1021 */
|
|
|
1400 || n == SSL_R_TLSV1_ALERT_RECORD_OVERFLOW /* 1022 */
|
|
|
1401 || n == SSL_R_SSLV3_ALERT_DECOMPRESSION_FAILURE /* 1030 */
|
|
|
1402 || n == SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE /* 1040 */
|
|
|
1403 || n == SSL_R_SSLV3_ALERT_NO_CERTIFICATE /* 1041 */
|
|
|
1404 || n == SSL_R_SSLV3_ALERT_BAD_CERTIFICATE /* 1042 */
|
|
|
1405 || n == SSL_R_SSLV3_ALERT_UNSUPPORTED_CERTIFICATE /* 1043 */
|
|
|
1406 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED /* 1044 */
|
|
|
1407 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED /* 1045 */
|
|
|
1408 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN /* 1046 */
|
|
|
1409 || n == SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER /* 1047 */
|
|
|
1410 || n == SSL_R_TLSV1_ALERT_UNKNOWN_CA /* 1048 */
|
|
|
1411 || n == SSL_R_TLSV1_ALERT_ACCESS_DENIED /* 1049 */
|
|
|
1412 || n == SSL_R_TLSV1_ALERT_DECODE_ERROR /* 1050 */
|
|
|
1413 || n == SSL_R_TLSV1_ALERT_DECRYPT_ERROR /* 1051 */
|
|
|
1414 || n == SSL_R_TLSV1_ALERT_EXPORT_RESTRICTION /* 1060 */
|
|
|
1415 || n == SSL_R_TLSV1_ALERT_PROTOCOL_VERSION /* 1070 */
|
|
|
1416 || n == SSL_R_TLSV1_ALERT_INSUFFICIENT_SECURITY /* 1071 */
|
|
|
1417 || n == SSL_R_TLSV1_ALERT_INTERNAL_ERROR /* 1080 */
|
|
|
1418 || n == SSL_R_TLSV1_ALERT_USER_CANCELLED /* 1090 */
|
|
|
1419 || n == SSL_R_TLSV1_ALERT_NO_RENEGOTIATION) /* 1100 */
|
|
364
|
1420 {
|
|
|
1421 switch (c->log_error) {
|
|
|
1422
|
|
|
1423 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1424 case NGX_ERROR_INFO:
|
|
|
1425 level = NGX_LOG_INFO;
|
|
|
1426 break;
|
|
|
1427
|
|
|
1428 case NGX_ERROR_ERR:
|
|
|
1429 level = NGX_LOG_ERR;
|
|
|
1430 break;
|
|
|
1431
|
|
|
1432 default:
|
|
|
1433 break;
|
|
|
1434 }
|
|
|
1435 }
|
|
96
|
1436 }
|
|
|
1437
|
|
|
1438 ngx_ssl_error(level, c->log, err, text);
|
|
|
1439 }
|
|
|
1440
|
|
|
1441
|
|
358
|
1442 static void
|
|
|
1443 ngx_ssl_clear_error(ngx_log_t *log)
|
|
|
1444 {
|
|
364
|
1445 while (ERR_peek_error()) {
|
|
358
|
1446 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "ignoring stale global SSL error");
|
|
|
1447 }
|
|
364
|
1448
|
|
|
1449 ERR_clear_error();
|
|
358
|
1450 }
|
|
|
1451
|
|
|
1452
|
|
132
|
1453 void ngx_cdecl
|
|
38
|
1454 ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, char *fmt, ...)
|
|
126
|
1455 {
|
|
364
|
1456 u_long n;
|
|
|
1457 va_list args;
|
|
|
1458 u_char *p, *last;
|
|
|
1459 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
10
|
1460
|
|
|
1461 last = errstr + NGX_MAX_CONF_ERRSTR;
|
|
0
|
1462
|
|
|
1463 va_start(args, fmt);
|
|
484
|
1464 p = ngx_vslprintf(errstr, last - 1, fmt, args);
|
|
0
|
1465 va_end(args);
|
|
|
1466
|
|
96
|
1467 p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);
|
|
|
1468
|
|
364
|
1469 for ( ;; ) {
|
|
132
|
1470
|
|
|
1471 n = ERR_get_error();
|
|
|
1472
|
|
|
1473 if (n == 0) {
|
|
|
1474 break;
|
|
|
1475 }
|
|
96
|
1476
|
|
364
|
1477 if (p >= last) {
|
|
|
1478 continue;
|
|
|
1479 }
|
|
|
1480
|
|
96
|
1481 *p++ = ' ';
|
|
0
|
1482
|
|
96
|
1483 ERR_error_string_n(n, (char *) p, last - p);
|
|
|
1484
|
|
|
1485 while (p < last && *p) {
|
|
|
1486 p++;
|
|
|
1487 }
|
|
|
1488 }
|
|
0
|
1489
|
|
|
1490 ngx_log_error(level, log, err, "%s)", errstr);
|
|
|
1491 }
|
|
58
|
1492
|
|
|
1493
|
|
272
|
1494 ngx_int_t
|
|
|
1495 ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
|
|
|
1496 ssize_t builtin_session_cache, ngx_shm_zone_t *shm_zone, time_t timeout)
|
|
|
1497 {
|
|
|
1498 long cache_mode;
|
|
|
1499
|
|
358
|
1500 if (builtin_session_cache == NGX_SSL_NO_SCACHE) {
|
|
|
1501 SSL_CTX_set_session_cache_mode(ssl->ctx, SSL_SESS_CACHE_OFF);
|
|
|
1502 return NGX_OK;
|
|
|
1503 }
|
|
|
1504
|
|
564
|
1505 SSL_CTX_set_session_id_context(ssl->ctx, sess_ctx->data, sess_ctx->len);
|
|
|
1506
|
|
378
|
1507 if (builtin_session_cache == NGX_SSL_NONE_SCACHE) {
|
|
|
1508
|
|
|
1509 /*
|
|
|
1510 * If the server explicitly says that it does not support
|
|
|
1511 * session reuse (see SSL_SESS_CACHE_OFF above), then
|
|
|
1512 * Outlook Express fails to upload a sent email to
|
|
|
1513 * the Sent Items folder on the IMAP server via a separate IMAP
|
|
|
1514 * connection in the background. Therefore we have a special
|
|
|
1515 * mode (SSL_SESS_CACHE_SERVER|SSL_SESS_CACHE_NO_INTERNAL_STORE)
|
|
|
1516 * where the server pretends that it supports session reuse,
|
|
|
1517 * but it does not actually store any session.
|
|
|
1518 */
|
|
|
1519
|
|
|
1520 SSL_CTX_set_session_cache_mode(ssl->ctx,
|
|
|
1521 SSL_SESS_CACHE_SERVER
|
|
|
1522 |SSL_SESS_CACHE_NO_AUTO_CLEAR
|
|
|
1523 |SSL_SESS_CACHE_NO_INTERNAL_STORE);
|
|
|
1524
|
|
|
1525 SSL_CTX_sess_set_cache_size(ssl->ctx, 1);
|
|
|
1526
|
|
|
1527 return NGX_OK;
|
|
|
1528 }
|
|
|
1529
|
|
272
|
1530 cache_mode = SSL_SESS_CACHE_SERVER;
|
|
|
1531
|
|
|
1532 if (shm_zone && builtin_session_cache == NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1533 cache_mode |= SSL_SESS_CACHE_NO_INTERNAL;
|
|
|
1534 }
|
|
|
1535
|
|
|
1536 SSL_CTX_set_session_cache_mode(ssl->ctx, cache_mode);
|
|
|
1537
|
|
|
1538 if (builtin_session_cache != NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1539
|
|
|
1540 if (builtin_session_cache != NGX_SSL_DFLT_BUILTIN_SCACHE) {
|
|
|
1541 SSL_CTX_sess_set_cache_size(ssl->ctx, builtin_session_cache);
|
|
|
1542 }
|
|
|
1543 }
|
|
|
1544
|
|
480
|
1545 SSL_CTX_set_timeout(ssl->ctx, (long) timeout);
|
|
274
|
1546
|
|
272
|
1547 if (shm_zone) {
|
|
|
1548 SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_session);
|
|
|
1549 SSL_CTX_sess_set_get_cb(ssl->ctx, ngx_ssl_get_cached_session);
|
|
|
1550 SSL_CTX_sess_set_remove_cb(ssl->ctx, ngx_ssl_remove_session);
|
|
|
1551
|
|
|
1552 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_session_cache_index, shm_zone)
|
|
|
1553 == 0)
|
|
|
1554 {
|
|
|
1555 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
1556 "SSL_CTX_set_ex_data() failed");
|
|
|
1557 return NGX_ERROR;
|
|
|
1558 }
|
|
|
1559 }
|
|
|
1560
|
|
|
1561 return NGX_OK;
|
|
|
1562 }
|
|
|
1563
|
|
|
1564
|
|
634
|
1565 ngx_int_t
|
|
272
|
1566 ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
|
|
|
1567 {
|
|
468
|
1568 size_t len;
|
|
272
|
1569 ngx_slab_pool_t *shpool;
|
|
|
1570 ngx_ssl_session_cache_t *cache;
|
|
|
1571
|
|
|
1572 if (data) {
|
|
|
1573 shm_zone->data = data;
|
|
|
1574 return NGX_OK;
|
|
|
1575 }
|
|
|
1576
|
|
480
|
1577 if (shm_zone->shm.exists) {
|
|
|
1578 shm_zone->data = data;
|
|
|
1579 return NGX_OK;
|
|
|
1580 }
|
|
|
1581
|
|
272
|
1582 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1583
|
|
|
1584 cache = ngx_slab_alloc(shpool, sizeof(ngx_ssl_session_cache_t));
|
|
|
1585 if (cache == NULL) {
|
|
|
1586 return NGX_ERROR;
|
|
|
1587 }
|
|
|
1588
|
|
480
|
1589 shpool->data = cache;
|
|
|
1590 shm_zone->data = cache;
|
|
|
1591
|
|
358
|
1592 ngx_rbtree_init(&cache->session_rbtree, &cache->sentinel,
|
|
356
|
1593 ngx_ssl_session_rbtree_insert_value);
|
|
272
|
1594
|
|
358
|
1595 ngx_queue_init(&cache->expire_queue);
|
|
|
1596
|
|
480
|
1597 len = sizeof(" in SSL session shared cache \"\"") + shm_zone->shm.name.len;
|
|
468
|
1598
|
|
|
1599 shpool->log_ctx = ngx_slab_alloc(shpool, len);
|
|
|
1600 if (shpool->log_ctx == NULL) {
|
|
|
1601 return NGX_ERROR;
|
|
|
1602 }
|
|
|
1603
|
|
|
1604 ngx_sprintf(shpool->log_ctx, " in SSL session shared cache \"%V\"%Z",
|
|
480
|
1605 &shm_zone->shm.name);
|
|
272
|
1606
|
|
|
1607 return NGX_OK;
|
|
|
1608 }
|
|
|
1609
|
|
|
1610
|
|
|
1611 /*
|
|
274
|
1612 * The length of the session id is 16 bytes for SSLv2 sessions and
|
|
|
1613 * between 1 and 32 bytes for SSLv3/TLSv1, typically 32 bytes.
|
|
|
1614 * It seems that the typical length of the external ASN1 representation
|
|
|
1615 * of a session is 118 or 119 bytes for SSLv3/TSLv1.
|
|
|
1616 *
|
|
|
1617 * Thus on 32-bit platforms we allocate separately an rbtree node,
|
|
|
1618 * a session id, and an ASN1 representation, they take accordingly
|
|
|
1619 * 64, 32, and 128 bytes.
|
|
|
1620 *
|
|
|
1621 * On 64-bit platforms we allocate separately an rbtree node + session_id,
|
|
|
1622 * and an ASN1 representation, they take accordingly 128 and 128 bytes.
|
|
|
1623 *
|
|
272
|
1624 * OpenSSL's i2d_SSL_SESSION() and d2i_SSL_SESSION are slow,
|
|
|
1625 * so they are outside the code locked by shared pool mutex
|
|
|
1626 */
|
|
|
1627
|
|
|
1628 static int
|
|
|
1629 ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
|
|
|
1630 {
|
|
|
1631 int len;
|
|
274
|
1632 u_char *p, *id, *cached_sess;
|
|
272
|
1633 uint32_t hash;
|
|
|
1634 SSL_CTX *ssl_ctx;
|
|
|
1635 ngx_shm_zone_t *shm_zone;
|
|
|
1636 ngx_connection_t *c;
|
|
|
1637 ngx_slab_pool_t *shpool;
|
|
|
1638 ngx_ssl_sess_id_t *sess_id;
|
|
|
1639 ngx_ssl_session_cache_t *cache;
|
|
|
1640 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1641
|
|
|
1642 len = i2d_SSL_SESSION(sess, NULL);
|
|
|
1643
|
|
|
1644 /* do not cache too big session */
|
|
|
1645
|
|
|
1646 if (len > (int) NGX_SSL_MAX_SESSION_SIZE) {
|
|
|
1647 return 0;
|
|
|
1648 }
|
|
|
1649
|
|
|
1650 p = buf;
|
|
|
1651 i2d_SSL_SESSION(sess, &p);
|
|
|
1652
|
|
|
1653 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1654
|
|
|
1655 ssl_ctx = SSL_get_SSL_CTX(ssl_conn);
|
|
|
1656 shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
|
|
|
1657
|
|
|
1658 cache = shm_zone->data;
|
|
|
1659 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1660
|
|
|
1661 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1662
|
|
|
1663 /* drop one or two expired sessions */
|
|
|
1664 ngx_ssl_expire_sessions(cache, shpool, 1);
|
|
|
1665
|
|
274
|
1666 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1667
|
|
|
1668 if (cached_sess == NULL) {
|
|
|
1669
|
|
|
1670 /* drop the oldest non-expired session and try once more */
|
|
|
1671
|
|
|
1672 ngx_ssl_expire_sessions(cache, shpool, 0);
|
|
|
1673
|
|
274
|
1674 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1675
|
|
|
1676 if (cached_sess == NULL) {
|
|
274
|
1677 sess_id = NULL;
|
|
272
|
1678 goto failed;
|
|
|
1679 }
|
|
|
1680 }
|
|
|
1681
|
|
|
1682 sess_id = ngx_slab_alloc_locked(shpool, sizeof(ngx_ssl_sess_id_t));
|
|
|
1683 if (sess_id == NULL) {
|
|
|
1684 goto failed;
|
|
|
1685 }
|
|
|
1686
|
|
274
|
1687 #if (NGX_PTR_SIZE == 8)
|
|
|
1688
|
|
|
1689 id = sess_id->sess_id;
|
|
|
1690
|
|
|
1691 #else
|
|
|
1692
|
|
|
1693 id = ngx_slab_alloc_locked(shpool, sess->session_id_length);
|
|
|
1694 if (id == NULL) {
|
|
|
1695 goto failed;
|
|
|
1696 }
|
|
|
1697
|
|
|
1698 #endif
|
|
|
1699
|
|
|
1700 ngx_memcpy(cached_sess, buf, len);
|
|
272
|
1701
|
|
|
1702 ngx_memcpy(id, sess->session_id, sess->session_id_length);
|
|
|
1703
|
|
|
1704 hash = ngx_crc32_short(sess->session_id, sess->session_id_length);
|
|
|
1705
|
|
|
1706 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
530
|
1707 "ssl new session: %08XD:%d:%d",
|
|
272
|
1708 hash, sess->session_id_length, len);
|
|
|
1709
|
|
|
1710 sess_id->node.key = hash;
|
|
|
1711 sess_id->node.data = (u_char) sess->session_id_length;
|
|
|
1712 sess_id->id = id;
|
|
|
1713 sess_id->len = len;
|
|
|
1714 sess_id->session = cached_sess;
|
|
|
1715
|
|
358
|
1716 sess_id->expire = ngx_time() + SSL_CTX_get_timeout(ssl_ctx);
|
|
|
1717
|
|
|
1718 ngx_queue_insert_head(&cache->expire_queue, &sess_id->queue);
|
|
|
1719
|
|
|
1720 ngx_rbtree_insert(&cache->session_rbtree, &sess_id->node);
|
|
272
|
1721
|
|
|
1722 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1723
|
|
|
1724 return 0;
|
|
|
1725
|
|
|
1726 failed:
|
|
|
1727
|
|
|
1728 if (cached_sess) {
|
|
|
1729 ngx_slab_free_locked(shpool, cached_sess);
|
|
|
1730 }
|
|
|
1731
|
|
274
|
1732 if (sess_id) {
|
|
|
1733 ngx_slab_free_locked(shpool, sess_id);
|
|
272
|
1734 }
|
|
|
1735
|
|
|
1736 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1737
|
|
|
1738 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1739 "could not add new SSL session to the session cache");
|
|
|
1740
|
|
|
1741 return 0;
|
|
|
1742 }
|
|
|
1743
|
|
|
1744
|
|
|
1745 static ngx_ssl_session_t *
|
|
|
1746 ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn, u_char *id, int len,
|
|
|
1747 int *copy)
|
|
|
1748 {
|
|
|
1749 #if OPENSSL_VERSION_NUMBER >= 0x0090707fL
|
|
|
1750 const
|
|
|
1751 #endif
|
|
|
1752 u_char *p;
|
|
|
1753 uint32_t hash;
|
|
274
|
1754 ngx_int_t rc;
|
|
272
|
1755 ngx_shm_zone_t *shm_zone;
|
|
|
1756 ngx_slab_pool_t *shpool;
|
|
|
1757 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1758 ngx_ssl_session_t *sess;
|
|
|
1759 ngx_ssl_sess_id_t *sess_id;
|
|
|
1760 ngx_ssl_session_cache_t *cache;
|
|
|
1761 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
632
|
1762 #if (NGX_DEBUG)
|
|
|
1763 ngx_connection_t *c;
|
|
|
1764 #endif
|
|
272
|
1765
|
|
274
|
1766 hash = ngx_crc32_short(id, (size_t) len);
|
|
272
|
1767 *copy = 0;
|
|
|
1768
|
|
632
|
1769 #if (NGX_DEBUG)
|
|
|
1770 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1771
|
|
272
|
1772 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
530
|
1773 "ssl get session: %08XD:%d", hash, len);
|
|
632
|
1774 #endif
|
|
272
|
1775
|
|
|
1776 shm_zone = SSL_CTX_get_ex_data(SSL_get_SSL_CTX(ssl_conn),
|
|
|
1777 ngx_ssl_session_cache_index);
|
|
|
1778
|
|
|
1779 cache = shm_zone->data;
|
|
|
1780
|
|
|
1781 sess = NULL;
|
|
|
1782
|
|
|
1783 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1784
|
|
|
1785 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1786
|
|
358
|
1787 node = cache->session_rbtree.root;
|
|
|
1788 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1789
|
|
|
1790 while (node != sentinel) {
|
|
|
1791
|
|
|
1792 if (hash < node->key) {
|
|
|
1793 node = node->left;
|
|
|
1794 continue;
|
|
|
1795 }
|
|
|
1796
|
|
|
1797 if (hash > node->key) {
|
|
|
1798 node = node->right;
|
|
|
1799 continue;
|
|
|
1800 }
|
|
|
1801
|
|
274
|
1802 /* hash == node->key */
|
|
|
1803
|
|
|
1804 do {
|
|
272
|
1805 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1806
|
|
274
|
1807 rc = ngx_memn2cmp(id, sess_id->id,
|
|
|
1808 (size_t) len, (size_t) node->data);
|
|
|
1809 if (rc == 0) {
|
|
272
|
1810
|
|
358
|
1811 if (sess_id->expire > ngx_time()) {
|
|
274
|
1812 ngx_memcpy(buf, sess_id->session, sess_id->len);
|
|
272
|
1813
|
|
|
1814 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1815
|
|
|
1816 p = buf;
|
|
|
1817 sess = d2i_SSL_SESSION(NULL, &p, sess_id->len);
|
|
|
1818
|
|
|
1819 return sess;
|
|
|
1820 }
|
|
|
1821
|
|
358
|
1822 ngx_queue_remove(&sess_id->queue);
|
|
|
1823
|
|
|
1824 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1825
|
|
274
|
1826 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1827 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1828 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1829 #endif
|
|
272
|
1830 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1831
|
|
|
1832 sess = NULL;
|
|
|
1833
|
|
274
|
1834 goto done;
|
|
272
|
1835 }
|
|
274
|
1836
|
|
|
1837 node = (rc < 0) ? node->left : node->right;
|
|
|
1838
|
|
|
1839 } while (node != sentinel && hash == node->key);
|
|
|
1840
|
|
|
1841 break;
|
|
272
|
1842 }
|
|
|
1843
|
|
274
|
1844 done:
|
|
|
1845
|
|
272
|
1846 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1847
|
|
|
1848 return sess;
|
|
|
1849 }
|
|
|
1850
|
|
|
1851
|
|
366
|
1852 void
|
|
|
1853 ngx_ssl_remove_cached_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1854 {
|
|
|
1855 SSL_CTX_remove_session(ssl, sess);
|
|
|
1856
|
|
|
1857 ngx_ssl_remove_session(ssl, sess);
|
|
|
1858 }
|
|
|
1859
|
|
|
1860
|
|
272
|
1861 static void
|
|
|
1862 ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1863 {
|
|
274
|
1864 size_t len;
|
|
|
1865 u_char *id;
|
|
272
|
1866 uint32_t hash;
|
|
274
|
1867 ngx_int_t rc;
|
|
272
|
1868 ngx_shm_zone_t *shm_zone;
|
|
|
1869 ngx_slab_pool_t *shpool;
|
|
|
1870 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1871 ngx_ssl_sess_id_t *sess_id;
|
|
|
1872 ngx_ssl_session_cache_t *cache;
|
|
|
1873
|
|
|
1874 shm_zone = SSL_CTX_get_ex_data(ssl, ngx_ssl_session_cache_index);
|
|
|
1875
|
|
366
|
1876 if (shm_zone == NULL) {
|
|
|
1877 return;
|
|
|
1878 }
|
|
|
1879
|
|
272
|
1880 cache = shm_zone->data;
|
|
|
1881
|
|
|
1882 id = sess->session_id;
|
|
274
|
1883 len = (size_t) sess->session_id_length;
|
|
|
1884
|
|
|
1885 hash = ngx_crc32_short(id, len);
|
|
272
|
1886
|
|
|
1887 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
530
|
1888 "ssl remove session: %08XD:%uz", hash, len);
|
|
272
|
1889
|
|
|
1890 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1891
|
|
|
1892 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1893
|
|
358
|
1894 node = cache->session_rbtree.root;
|
|
|
1895 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1896
|
|
|
1897 while (node != sentinel) {
|
|
|
1898
|
|
|
1899 if (hash < node->key) {
|
|
|
1900 node = node->left;
|
|
|
1901 continue;
|
|
|
1902 }
|
|
|
1903
|
|
|
1904 if (hash > node->key) {
|
|
|
1905 node = node->right;
|
|
|
1906 continue;
|
|
|
1907 }
|
|
|
1908
|
|
274
|
1909 /* hash == node->key */
|
|
|
1910
|
|
|
1911 do {
|
|
272
|
1912 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1913
|
|
274
|
1914 rc = ngx_memn2cmp(id, sess_id->id, len, (size_t) node->data);
|
|
|
1915
|
|
|
1916 if (rc == 0) {
|
|
358
|
1917
|
|
|
1918 ngx_queue_remove(&sess_id->queue);
|
|
|
1919
|
|
|
1920 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1921
|
|
274
|
1922 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1923 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1924 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1925 #endif
|
|
272
|
1926 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1927
|
|
274
|
1928 goto done;
|
|
272
|
1929 }
|
|
274
|
1930
|
|
|
1931 node = (rc < 0) ? node->left : node->right;
|
|
|
1932
|
|
|
1933 } while (node != sentinel && hash == node->key);
|
|
|
1934
|
|
|
1935 break;
|
|
272
|
1936 }
|
|
|
1937
|
|
274
|
1938 done:
|
|
|
1939
|
|
272
|
1940 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1941 }
|
|
|
1942
|
|
|
1943
|
|
|
1944 static void
|
|
|
1945 ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
|
|
|
1946 ngx_slab_pool_t *shpool, ngx_uint_t n)
|
|
|
1947 {
|
|
358
|
1948 time_t now;
|
|
|
1949 ngx_queue_t *q;
|
|
274
|
1950 ngx_ssl_sess_id_t *sess_id;
|
|
272
|
1951
|
|
358
|
1952 now = ngx_time();
|
|
272
|
1953
|
|
|
1954 while (n < 3) {
|
|
|
1955
|
|
358
|
1956 if (ngx_queue_empty(&cache->expire_queue)) {
|
|
272
|
1957 return;
|
|
|
1958 }
|
|
|
1959
|
|
358
|
1960 q = ngx_queue_last(&cache->expire_queue);
|
|
|
1961
|
|
|
1962 sess_id = ngx_queue_data(q, ngx_ssl_sess_id_t, queue);
|
|
|
1963
|
|
|
1964 if (n++ != 0 && sess_id->expire > now) {
|
|
332
|
1965 return;
|
|
272
|
1966 }
|
|
|
1967
|
|
358
|
1968 ngx_queue_remove(q);
|
|
272
|
1969
|
|
|
1970 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
|
1971 "expire session: %08Xi", sess_id->node.key);
|
|
|
1972
|
|
358
|
1973 ngx_rbtree_delete(&cache->session_rbtree, &sess_id->node);
|
|
|
1974
|
|
274
|
1975 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1976 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1977 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1978 #endif
|
|
272
|
1979 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1980 }
|
|
|
1981 }
|
|
|
1982
|
|
|
1983
|
|
274
|
1984 static void
|
|
|
1985 ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
1986 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
1987 {
|
|
356
|
1988 ngx_rbtree_node_t **p;
|
|
|
1989 ngx_ssl_sess_id_t *sess_id, *sess_id_temp;
|
|
274
|
1990
|
|
|
1991 for ( ;; ) {
|
|
|
1992
|
|
|
1993 if (node->key < temp->key) {
|
|
|
1994
|
|
356
|
1995 p = &temp->left;
|
|
274
|
1996
|
|
|
1997 } else if (node->key > temp->key) {
|
|
|
1998
|
|
356
|
1999 p = &temp->right;
|
|
274
|
2000
|
|
|
2001 } else { /* node->key == temp->key */
|
|
|
2002
|
|
|
2003 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
2004 sess_id_temp = (ngx_ssl_sess_id_t *) temp;
|
|
|
2005
|
|
356
|
2006 p = (ngx_memn2cmp(sess_id->id, sess_id_temp->id,
|
|
|
2007 (size_t) node->data, (size_t) temp->data)
|
|
|
2008 < 0) ? &temp->left : &temp->right;
|
|
274
|
2009 }
|
|
356
|
2010
|
|
|
2011 if (*p == sentinel) {
|
|
|
2012 break;
|
|
|
2013 }
|
|
|
2014
|
|
|
2015 temp = *p;
|
|
274
|
2016 }
|
|
|
2017
|
|
356
|
2018 *p = node;
|
|
274
|
2019 node->parent = temp;
|
|
|
2020 node->left = sentinel;
|
|
|
2021 node->right = sentinel;
|
|
|
2022 ngx_rbt_red(node);
|
|
276
|
2023 }
|
|
274
|
2024
|
|
|
2025
|
|
58
|
2026 void
|
|
|
2027 ngx_ssl_cleanup_ctx(void *data)
|
|
|
2028 {
|
|
138
|
2029 ngx_ssl_t *ssl = data;
|
|
58
|
2030
|
|
138
|
2031 SSL_CTX_free(ssl->ctx);
|
|
58
|
2032 }
|
|
90
|
2033
|
|
|
2034
|
|
220
|
2035 ngx_int_t
|
|
|
2036 ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
2037 {
|
|
220
|
2038 s->data = (u_char *) SSL_get_version(c->ssl->connection);
|
|
|
2039 return NGX_OK;
|
|
160
|
2040 }
|
|
|
2041
|
|
|
2042
|
|
220
|
2043 ngx_int_t
|
|
|
2044 ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
2045 {
|
|
220
|
2046 s->data = (u_char *) SSL_get_cipher_name(c->ssl->connection);
|
|
|
2047 return NGX_OK;
|
|
160
|
2048 }
|
|
|
2049
|
|
|
2050
|
|
196
|
2051 ngx_int_t
|
|
530
|
2052 ngx_ssl_get_session_id(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2053 {
|
|
|
2054 int len;
|
|
|
2055 u_char *p, *buf;
|
|
|
2056 SSL_SESSION *sess;
|
|
|
2057
|
|
|
2058 sess = SSL_get0_session(c->ssl->connection);
|
|
|
2059
|
|
|
2060 len = i2d_SSL_SESSION(sess, NULL);
|
|
|
2061
|
|
|
2062 buf = ngx_alloc(len, c->log);
|
|
|
2063 if (buf == NULL) {
|
|
|
2064 return NGX_ERROR;
|
|
|
2065 }
|
|
|
2066
|
|
|
2067 s->len = 2 * len;
|
|
|
2068 s->data = ngx_pnalloc(pool, 2 * len);
|
|
|
2069 if (s->data == NULL) {
|
|
|
2070 ngx_free(buf);
|
|
|
2071 return NGX_ERROR;
|
|
|
2072 }
|
|
|
2073
|
|
|
2074 p = buf;
|
|
|
2075 i2d_SSL_SESSION(sess, &p);
|
|
|
2076
|
|
|
2077 ngx_hex_dump(s->data, buf, len);
|
|
|
2078
|
|
|
2079 ngx_free(buf);
|
|
|
2080
|
|
|
2081 return NGX_OK;
|
|
|
2082 }
|
|
|
2083
|
|
|
2084
|
|
|
2085 ngx_int_t
|
|
390
|
2086 ngx_ssl_get_raw_certificate(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
380
|
2087 {
|
|
|
2088 size_t len;
|
|
|
2089 BIO *bio;
|
|
|
2090 X509 *cert;
|
|
|
2091
|
|
|
2092 s->len = 0;
|
|
|
2093
|
|
|
2094 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2095 if (cert == NULL) {
|
|
|
2096 return NGX_OK;
|
|
|
2097 }
|
|
|
2098
|
|
|
2099 bio = BIO_new(BIO_s_mem());
|
|
|
2100 if (bio == NULL) {
|
|
|
2101 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
|
|
|
2102 X509_free(cert);
|
|
|
2103 return NGX_ERROR;
|
|
|
2104 }
|
|
|
2105
|
|
|
2106 if (PEM_write_bio_X509(bio, cert) == 0) {
|
|
|
2107 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "PEM_write_bio_X509() failed");
|
|
|
2108 goto failed;
|
|
|
2109 }
|
|
|
2110
|
|
|
2111 len = BIO_pending(bio);
|
|
|
2112 s->len = len;
|
|
|
2113
|
|
382
|
2114 s->data = ngx_pnalloc(pool, len);
|
|
380
|
2115 if (s->data == NULL) {
|
|
|
2116 goto failed;
|
|
|
2117 }
|
|
|
2118
|
|
|
2119 BIO_read(bio, s->data, len);
|
|
|
2120
|
|
|
2121 BIO_free(bio);
|
|
|
2122 X509_free(cert);
|
|
|
2123
|
|
|
2124 return NGX_OK;
|
|
|
2125
|
|
|
2126 failed:
|
|
|
2127
|
|
|
2128 BIO_free(bio);
|
|
|
2129 X509_free(cert);
|
|
|
2130
|
|
|
2131 return NGX_ERROR;
|
|
|
2132 }
|
|
|
2133
|
|
|
2134
|
|
|
2135 ngx_int_t
|
|
390
|
2136 ngx_ssl_get_certificate(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2137 {
|
|
|
2138 u_char *p;
|
|
|
2139 size_t len;
|
|
|
2140 ngx_uint_t i;
|
|
|
2141 ngx_str_t cert;
|
|
|
2142
|
|
|
2143 if (ngx_ssl_get_raw_certificate(c, pool, &cert) != NGX_OK) {
|
|
|
2144 return NGX_ERROR;
|
|
|
2145 }
|
|
|
2146
|
|
|
2147 if (cert.len == 0) {
|
|
|
2148 s->len = 0;
|
|
|
2149 return NGX_OK;
|
|
|
2150 }
|
|
|
2151
|
|
|
2152 len = cert.len - 1;
|
|
|
2153
|
|
|
2154 for (i = 0; i < cert.len - 1; i++) {
|
|
|
2155 if (cert.data[i] == LF) {
|
|
|
2156 len++;
|
|
|
2157 }
|
|
|
2158 }
|
|
|
2159
|
|
|
2160 s->len = len;
|
|
|
2161 s->data = ngx_pnalloc(pool, len);
|
|
|
2162 if (s->data == NULL) {
|
|
|
2163 return NGX_ERROR;
|
|
|
2164 }
|
|
|
2165
|
|
|
2166 p = s->data;
|
|
|
2167
|
|
510
|
2168 for (i = 0; i < cert.len - 1; i++) {
|
|
390
|
2169 *p++ = cert.data[i];
|
|
|
2170 if (cert.data[i] == LF) {
|
|
|
2171 *p++ = '\t';
|
|
|
2172 }
|
|
|
2173 }
|
|
|
2174
|
|
|
2175 return NGX_OK;
|
|
|
2176 }
|
|
|
2177
|
|
|
2178
|
|
|
2179 ngx_int_t
|
|
196
|
2180 ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2181 {
|
|
|
2182 char *p;
|
|
|
2183 size_t len;
|
|
|
2184 X509 *cert;
|
|
|
2185 X509_NAME *name;
|
|
|
2186
|
|
|
2187 s->len = 0;
|
|
|
2188
|
|
|
2189 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2190 if (cert == NULL) {
|
|
|
2191 return NGX_OK;
|
|
|
2192 }
|
|
|
2193
|
|
|
2194 name = X509_get_subject_name(cert);
|
|
|
2195 if (name == NULL) {
|
|
372
|
2196 X509_free(cert);
|
|
196
|
2197 return NGX_ERROR;
|
|
|
2198 }
|
|
|
2199
|
|
|
2200 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
2201
|
|
|
2202 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
2203
|
|
|
2204 s->len = len;
|
|
382
|
2205 s->data = ngx_pnalloc(pool, len);
|
|
196
|
2206 if (s->data == NULL) {
|
|
|
2207 OPENSSL_free(p);
|
|
372
|
2208 X509_free(cert);
|
|
196
|
2209 return NGX_ERROR;
|
|
|
2210 }
|
|
|
2211
|
|
|
2212 ngx_memcpy(s->data, p, len);
|
|
|
2213
|
|
|
2214 OPENSSL_free(p);
|
|
372
|
2215 X509_free(cert);
|
|
196
|
2216
|
|
|
2217 return NGX_OK;
|
|
|
2218 }
|
|
|
2219
|
|
|
2220
|
|
|
2221 ngx_int_t
|
|
|
2222 ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2223 {
|
|
|
2224 char *p;
|
|
|
2225 size_t len;
|
|
|
2226 X509 *cert;
|
|
|
2227 X509_NAME *name;
|
|
|
2228
|
|
|
2229 s->len = 0;
|
|
|
2230
|
|
|
2231 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2232 if (cert == NULL) {
|
|
|
2233 return NGX_OK;
|
|
|
2234 }
|
|
|
2235
|
|
|
2236 name = X509_get_issuer_name(cert);
|
|
|
2237 if (name == NULL) {
|
|
372
|
2238 X509_free(cert);
|
|
196
|
2239 return NGX_ERROR;
|
|
|
2240 }
|
|
|
2241
|
|
|
2242 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
2243
|
|
|
2244 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
2245
|
|
|
2246 s->len = len;
|
|
382
|
2247 s->data = ngx_pnalloc(pool, len);
|
|
196
|
2248 if (s->data == NULL) {
|
|
|
2249 OPENSSL_free(p);
|
|
372
|
2250 X509_free(cert);
|
|
196
|
2251 return NGX_ERROR;
|
|
|
2252 }
|
|
|
2253
|
|
|
2254 ngx_memcpy(s->data, p, len);
|
|
|
2255
|
|
|
2256 OPENSSL_free(p);
|
|
372
|
2257 X509_free(cert);
|
|
196
|
2258
|
|
|
2259 return NGX_OK;
|
|
|
2260 }
|
|
|
2261
|
|
|
2262
|
|
220
|
2263 ngx_int_t
|
|
|
2264 ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2265 {
|
|
|
2266 size_t len;
|
|
|
2267 X509 *cert;
|
|
|
2268 BIO *bio;
|
|
|
2269
|
|
|
2270 s->len = 0;
|
|
|
2271
|
|
|
2272 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2273 if (cert == NULL) {
|
|
|
2274 return NGX_OK;
|
|
|
2275 }
|
|
|
2276
|
|
|
2277 bio = BIO_new(BIO_s_mem());
|
|
|
2278 if (bio == NULL) {
|
|
372
|
2279 X509_free(cert);
|
|
220
|
2280 return NGX_ERROR;
|
|
|
2281 }
|
|
|
2282
|
|
|
2283 i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
|
|
|
2284 len = BIO_pending(bio);
|
|
|
2285
|
|
|
2286 s->len = len;
|
|
382
|
2287 s->data = ngx_pnalloc(pool, len);
|
|
220
|
2288 if (s->data == NULL) {
|
|
|
2289 BIO_free(bio);
|
|
372
|
2290 X509_free(cert);
|
|
220
|
2291 return NGX_ERROR;
|
|
|
2292 }
|
|
|
2293
|
|
|
2294 BIO_read(bio, s->data, len);
|
|
|
2295 BIO_free(bio);
|
|
372
|
2296 X509_free(cert);
|
|
220
|
2297
|
|
|
2298 return NGX_OK;
|
|
|
2299 }
|
|
|
2300
|
|
|
2301
|
|
510
|
2302 ngx_int_t
|
|
|
2303 ngx_ssl_get_client_verify(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2304 {
|
|
|
2305 X509 *cert;
|
|
|
2306
|
|
|
2307 if (SSL_get_verify_result(c->ssl->connection) != X509_V_OK) {
|
|
570
|
2308 ngx_str_set(s, "FAILED");
|
|
510
|
2309 return NGX_OK;
|
|
|
2310 }
|
|
|
2311
|
|
|
2312 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2313
|
|
|
2314 if (cert) {
|
|
570
|
2315 ngx_str_set(s, "SUCCESS");
|
|
510
|
2316
|
|
|
2317 } else {
|
|
570
|
2318 ngx_str_set(s, "NONE");
|
|
510
|
2319 }
|
|
|
2320
|
|
|
2321 X509_free(cert);
|
|
|
2322
|
|
|
2323 return NGX_OK;
|
|
|
2324 }
|
|
|
2325
|
|
|
2326
|
|
90
|
2327 static void *
|
|
|
2328 ngx_openssl_create_conf(ngx_cycle_t *cycle)
|
|
|
2329 {
|
|
|
2330 ngx_openssl_conf_t *oscf;
|
|
126
|
2331
|
|
90
|
2332 oscf = ngx_pcalloc(cycle->pool, sizeof(ngx_openssl_conf_t));
|
|
|
2333 if (oscf == NULL) {
|
|
496
|
2334 return NULL;
|
|
90
|
2335 }
|
|
126
|
2336
|
|
90
|
2337 /*
|
|
|
2338 * set by ngx_pcalloc():
|
|
126
|
2339 *
|
|
446
|
2340 * oscf->engine = 0;
|
|
126
|
2341 */
|
|
90
|
2342
|
|
|
2343 return oscf;
|
|
|
2344 }
|
|
|
2345
|
|
|
2346
|
|
|
2347 static char *
|
|
446
|
2348 ngx_openssl_engine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
90
|
2349 {
|
|
|
2350 ngx_openssl_conf_t *oscf = conf;
|
|
120
|
2351
|
|
446
|
2352 ENGINE *engine;
|
|
|
2353 ngx_str_t *value;
|
|
|
2354
|
|
|
2355 if (oscf->engine) {
|
|
|
2356 return "is duplicate";
|
|
90
|
2357 }
|
|
126
|
2358
|
|
446
|
2359 oscf->engine = 1;
|
|
|
2360
|
|
|
2361 value = cf->args->elts;
|
|
|
2362
|
|
|
2363 engine = ENGINE_by_id((const char *) value[1].data);
|
|
90
|
2364
|
|
|
2365 if (engine == NULL) {
|
|
446
|
2366 ngx_ssl_error(NGX_LOG_WARN, cf->log, 0,
|
|
|
2367 "ENGINE_by_id(\"%V\") failed", &value[1]);
|
|
90
|
2368 return NGX_CONF_ERROR;
|
|
|
2369 }
|
|
|
2370
|
|
|
2371 if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
|
|
446
|
2372 ngx_ssl_error(NGX_LOG_WARN, cf->log, 0,
|
|
90
|
2373 "ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
|
|
446
|
2374 &value[1]);
|
|
|
2375
|
|
|
2376 ENGINE_free(engine);
|
|
|
2377
|
|
90
|
2378 return NGX_CONF_ERROR;
|
|
|
2379 }
|
|
|
2380
|
|
|
2381 ENGINE_free(engine);
|
|
|
2382
|
|
|
2383 return NGX_CONF_OK;
|
|
446
|
2384 }
|
|
120
|
2385
|
|
|
2386
|
|
|
2387 static void
|
|
|
2388 ngx_openssl_exit(ngx_cycle_t *cycle)
|
|
|
2389 {
|
|
564
|
2390 EVP_cleanup();
|
|
120
|
2391 ENGINE_cleanup();
|
|
|
2392 }
|
