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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10
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90
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11
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12 typedef struct {
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446
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13 ngx_uint_t engine; /* unsigned engine:1; */
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90
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14 } ngx_openssl_conf_t;
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28
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15
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0
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16
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220
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17 static int ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store);
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542
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18 static void ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where,
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19 int ret);
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96
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20 static void ngx_ssl_handshake_handler(ngx_event_t *ev);
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38
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21 static ngx_int_t ngx_ssl_handle_recv(ngx_connection_t *c, int n);
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22
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22 static void ngx_ssl_write_handler(ngx_event_t *wev);
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23 static void ngx_ssl_read_handler(ngx_event_t *rev);
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126
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24 static void ngx_ssl_shutdown_handler(ngx_event_t *ev);
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96
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25 static void ngx_ssl_connection_error(ngx_connection_t *c, int sslerr,
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26 ngx_err_t err, char *text);
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358
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27 static void ngx_ssl_clear_error(ngx_log_t *log);
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272
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28
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29 static ngx_int_t ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone,
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30 void *data);
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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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82 static long ngx_ssl_protocols[] = {
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83 SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1,
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84 SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1,
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85 SSL_OP_NO_SSLv2|SSL_OP_NO_TLSv1,
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86 SSL_OP_NO_TLSv1,
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87 SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3,
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88 SSL_OP_NO_SSLv3,
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89 SSL_OP_NO_SSLv2,
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90 0,
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91 };
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0
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92
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93
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272
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94 int ngx_ssl_connection_index;
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95 int ngx_ssl_server_conf_index;
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96 int ngx_ssl_session_cache_index;
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220
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97
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98
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38
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99 ngx_int_t
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100 ngx_ssl_init(ngx_log_t *log)
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0
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101 {
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272
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102 OPENSSL_config(NULL);
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103
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0
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104 SSL_library_init();
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105 SSL_load_error_strings();
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90
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106
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28
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107 ENGINE_load_builtin_engines();
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0
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108
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564
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109 OpenSSL_add_all_algorithms();
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110
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272
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111 ngx_ssl_connection_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
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112
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113 if (ngx_ssl_connection_index == -1) {
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114 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "SSL_get_ex_new_index() failed");
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115 return NGX_ERROR;
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116 }
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220
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117
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272
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118 ngx_ssl_server_conf_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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119 NULL);
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120 if (ngx_ssl_server_conf_index == -1) {
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121 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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122 "SSL_CTX_get_ex_new_index() failed");
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123 return NGX_ERROR;
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124 }
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125
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126 ngx_ssl_session_cache_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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127 NULL);
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128 if (ngx_ssl_session_cache_index == -1) {
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129 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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130 "SSL_CTX_get_ex_new_index() failed");
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220
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131 return NGX_ERROR;
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132 }
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133
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0
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134 return NGX_OK;
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135 }
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136
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137
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38
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138 ngx_int_t
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272
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139 ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
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96
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140 {
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126
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141 ssl->ctx = SSL_CTX_new(SSLv23_method());
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96
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142
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143 if (ssl->ctx == NULL) {
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144 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "SSL_CTX_new() failed");
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145 return NGX_ERROR;
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146 }
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147
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272
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148 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_server_conf_index, data) == 0) {
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149 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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150 "SSL_CTX_set_ex_data() failed");
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151 return NGX_ERROR;
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152 }
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153
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126
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154 /* client side options */
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155
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156 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_SESS_ID_BUG);
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157 SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_CHALLENGE_BUG);
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158
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159 /* server side options */
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112
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160
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161 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
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162 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
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163
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164 /* this option allow a potential SSL 2.0 rollback (CAN-2005-2969) */
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165 SSL_CTX_set_options(ssl->ctx, SSL_OP_MSIE_SSLV2_RSA_PADDING);
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166
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167 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
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168 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);
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169 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_BLOCK_PADDING_BUG);
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170
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171 SSL_CTX_set_options(ssl->ctx, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
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172
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380
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173 SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_DH_USE);
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96
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174
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175 if (ngx_ssl_protocols[protocols >> 1] != 0) {
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176 SSL_CTX_set_options(ssl->ctx, ngx_ssl_protocols[protocols >> 1]);
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177 }
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178
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179 SSL_CTX_set_read_ahead(ssl->ctx, 1);
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180
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542
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181 SSL_CTX_set_info_callback(ssl->ctx, ngx_ssl_info_callback);
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182
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96
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183 return NGX_OK;
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184 }
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185
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186
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187 ngx_int_t
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112
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188 ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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189 ngx_str_t *key)
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96
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190 {
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454
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191 if (ngx_conf_full_name(cf->cycle, cert, 1) != NGX_OK) {
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96
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192 return NGX_ERROR;
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193 }
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194
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112
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195 if (SSL_CTX_use_certificate_chain_file(ssl->ctx, (char *) cert->data)
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96
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196 == 0)
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197 {
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198 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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112
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199 "SSL_CTX_use_certificate_chain_file(\"%s\") failed",
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200 cert->data);
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201 return NGX_ERROR;
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202 }
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203
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454
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204 if (ngx_conf_full_name(cf->cycle, key, 1) != NGX_OK) {
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112
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205 return NGX_ERROR;
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206 }
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207
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208 if (SSL_CTX_use_PrivateKey_file(ssl->ctx, (char *) key->data,
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196
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209 SSL_FILETYPE_PEM)
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210 == 0)
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112
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211 {
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212 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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213 "SSL_CTX_use_PrivateKey_file(\"%s\") failed", key->data);
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96
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214 return NGX_ERROR;
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215 }
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216
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217 return NGX_OK;
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218 }
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219
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220
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221 ngx_int_t
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220
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222 ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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223 ngx_int_t depth)
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196
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224 {
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220
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225 STACK_OF(X509_NAME) *list;
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226
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227 SSL_CTX_set_verify(ssl->ctx, SSL_VERIFY_PEER, ngx_http_ssl_verify_callback);
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228
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229 SSL_CTX_set_verify_depth(ssl->ctx, depth);
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230
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231 if (cert->len == 0) {
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232 return NGX_OK;
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233 }
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234
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454
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235 if (ngx_conf_full_name(cf->cycle, cert, 1) != NGX_OK) {
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196
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236 return NGX_ERROR;
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237 }
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238
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239 if (SSL_CTX_load_verify_locations(ssl->ctx, (char *) cert->data, NULL)
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240 == 0)
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241 {
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242 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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243 "SSL_CTX_load_verify_locations(\"%s\") failed",
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244 cert->data);
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245 return NGX_ERROR;
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246 }
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247
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220
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248 list = SSL_load_client_CA_file((char *) cert->data);
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249
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250 if (list == NULL) {
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251 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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252 "SSL_load_client_CA_file(\"%s\") failed", cert->data);
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253 return NGX_ERROR;
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254 }
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255
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256 /*
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257 * before 0.9.7h and 0.9.8 SSL_load_client_CA_file()
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258 * always leaved an error in the error queue
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259 */
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260
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261 ERR_clear_error();
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262
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263 SSL_CTX_set_client_CA_list(ssl->ctx, list);
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264
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196
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265 return NGX_OK;
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266 }
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267
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268
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510
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269 ngx_int_t
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270 ngx_ssl_crl(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *crl)
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271 {
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272 X509_STORE *store;
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273 X509_LOOKUP *lookup;
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274
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275 if (crl->len == 0) {
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276 return NGX_OK;
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277 }
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278
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279 if (ngx_conf_full_name(cf->cycle, crl, 1) != NGX_OK) {
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280 return NGX_ERROR;
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281 }
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282
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283 store = SSL_CTX_get_cert_store(ssl->ctx);
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284
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285 if (store == NULL) {
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286 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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287 "SSL_CTX_get_cert_store() failed");
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288 return NGX_ERROR;
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289 }
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290
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291 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
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292
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293 if (lookup == NULL) {
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294 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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295 "X509_STORE_add_lookup() failed");
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296 return NGX_ERROR;
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297 }
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298
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299 if (X509_LOOKUP_load_file(lookup, (char *) crl->data, X509_FILETYPE_PEM)
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300 == 0)
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301 {
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302 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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303 "X509_LOOKUP_load_file(\"%s\") failed", crl->data);
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304 return NGX_ERROR;
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305 }
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306
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307 X509_STORE_set_flags(store,
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308 X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
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309
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310 return NGX_OK;
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311 }
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312
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313
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220
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314 static int
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315 ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store)
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316 {
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372
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317 #if (NGX_DEBUG)
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220
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318 char *subject, *issuer;
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319 int err, depth;
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320 X509 *cert;
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372
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321 X509_NAME *sname, *iname;
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220
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322 ngx_connection_t *c;
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323 ngx_ssl_conn_t *ssl_conn;
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324
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325 ssl_conn = X509_STORE_CTX_get_ex_data(x509_store,
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326 SSL_get_ex_data_X509_STORE_CTX_idx());
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327
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328 c = ngx_ssl_get_connection(ssl_conn);
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329
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330 cert = X509_STORE_CTX_get_current_cert(x509_store);
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331 err = X509_STORE_CTX_get_error(x509_store);
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332 depth = X509_STORE_CTX_get_error_depth(x509_store);
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333
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372
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334 sname = X509_get_subject_name(cert);
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335 subject = sname ? X509_NAME_oneline(sname, NULL, 0) : "(none)";
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336
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337 iname = X509_get_issuer_name(cert);
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338 issuer = iname ? X509_NAME_oneline(iname, NULL, 0) : "(none)";
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220
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339
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272
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340 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
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220
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341 "verify:%d, error:%d, depth:%d, "
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342 "subject:\"%s\",issuer: \"%s\"",
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343 ok, err, depth, subject, issuer);
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344
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372
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345 if (sname) {
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346 OPENSSL_free(subject);
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347 }
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348
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349 if (iname) {
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350 OPENSSL_free(issuer);
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351 }
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352 #endif
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353
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220
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354 return 1;
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355 }
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356
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357
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542
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358 static void
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359 ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where, int ret)
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360 {
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361 ngx_connection_t *c;
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362
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363 if (where & SSL_CB_HANDSHAKE_START) {
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364 c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
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365
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366 if (c->ssl->handshaked) {
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367 c->ssl->renegotiation = 1;
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|
|
368 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL renegotiation");
|
|
|
369 }
|
|
|
370 }
|
|
|
371 }
|
|
|
372
|
|
|
373
|
|
196
|
374 ngx_int_t
|
|
96
|
375 ngx_ssl_generate_rsa512_key(ngx_ssl_t *ssl)
|
|
|
376 {
|
|
220
|
377 RSA *key;
|
|
|
378
|
|
108
|
379 if (SSL_CTX_need_tmp_RSA(ssl->ctx) == 0) {
|
|
|
380 return NGX_OK;
|
|
|
381 }
|
|
|
382
|
|
220
|
383 key = RSA_generate_key(512, RSA_F4, NULL, NULL);
|
|
96
|
384
|
|
220
|
385 if (key) {
|
|
|
386 SSL_CTX_set_tmp_rsa(ssl->ctx, key);
|
|
|
387
|
|
|
388 RSA_free(key);
|
|
|
389
|
|
96
|
390 return NGX_OK;
|
|
|
391 }
|
|
|
392
|
|
|
393 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "RSA_generate_key(512) failed");
|
|
|
394
|
|
|
395 return NGX_ERROR;
|
|
|
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
|
|
|
481
|
|
|
482 ngx_int_t
|
|
96
|
483 ngx_ssl_create_connection(ngx_ssl_t *ssl, ngx_connection_t *c, ngx_uint_t flags)
|
|
126
|
484 {
|
|
96
|
485 ngx_ssl_connection_t *sc;
|
|
0
|
486
|
|
96
|
487 sc = ngx_pcalloc(c->pool, sizeof(ngx_ssl_connection_t));
|
|
|
488 if (sc == NULL) {
|
|
0
|
489 return NGX_ERROR;
|
|
|
490 }
|
|
|
491
|
|
358
|
492 sc->buffer = ((flags & NGX_SSL_BUFFER) != 0);
|
|
0
|
493
|
|
96
|
494 sc->connection = SSL_new(ssl->ctx);
|
|
0
|
495
|
|
96
|
496 if (sc->connection == NULL) {
|
|
0
|
497 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_new() failed");
|
|
|
498 return NGX_ERROR;
|
|
|
499 }
|
|
|
500
|
|
96
|
501 if (SSL_set_fd(sc->connection, c->fd) == 0) {
|
|
0
|
502 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_fd() failed");
|
|
|
503 return NGX_ERROR;
|
|
|
504 }
|
|
|
505
|
|
126
|
506 if (flags & NGX_SSL_CLIENT) {
|
|
|
507 SSL_set_connect_state(sc->connection);
|
|
|
508
|
|
|
509 } else {
|
|
|
510 SSL_set_accept_state(sc->connection);
|
|
|
511 }
|
|
0
|
512
|
|
272
|
513 if (SSL_set_ex_data(sc->connection, ngx_ssl_connection_index, c) == 0) {
|
|
220
|
514 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
|
|
|
515 return NGX_ERROR;
|
|
|
516 }
|
|
|
517
|
|
96
|
518 c->ssl = sc;
|
|
0
|
519
|
|
|
520 return NGX_OK;
|
|
|
521 }
|
|
|
522
|
|
|
523
|
|
96
|
524 ngx_int_t
|
|
126
|
525 ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session)
|
|
|
526 {
|
|
|
527 if (session) {
|
|
|
528 if (SSL_set_session(c->ssl->connection, session) == 0) {
|
|
|
529 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_session() failed");
|
|
|
530 return NGX_ERROR;
|
|
|
531 }
|
|
|
532 }
|
|
|
533
|
|
|
534 return NGX_OK;
|
|
|
535 }
|
|
|
536
|
|
|
537
|
|
|
538 ngx_int_t
|
|
96
|
539 ngx_ssl_handshake(ngx_connection_t *c)
|
|
|
540 {
|
|
|
541 int n, sslerr;
|
|
|
542 ngx_err_t err;
|
|
|
543
|
|
358
|
544 ngx_ssl_clear_error(c->log);
|
|
|
545
|
|
96
|
546 n = SSL_do_handshake(c->ssl->connection);
|
|
|
547
|
|
126
|
548 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
|
|
96
|
549
|
|
|
550 if (n == 1) {
|
|
|
551
|
|
430
|
552 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
96
|
553 return NGX_ERROR;
|
|
|
554 }
|
|
|
555
|
|
430
|
556 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
96
|
557 return NGX_ERROR;
|
|
|
558 }
|
|
|
559
|
|
|
560 #if (NGX_DEBUG)
|
|
|
561 {
|
|
|
562 char buf[129], *s, *d;
|
|
612
|
563 #if OPENSSL_VERSION_NUMBER >= 0x10000000L
|
|
566
|
564 const
|
|
|
565 #endif
|
|
96
|
566 SSL_CIPHER *cipher;
|
|
|
567
|
|
|
568 cipher = SSL_get_current_cipher(c->ssl->connection);
|
|
|
569
|
|
|
570 if (cipher) {
|
|
|
571 SSL_CIPHER_description(cipher, &buf[1], 128);
|
|
|
572
|
|
|
573 for (s = &buf[1], d = buf; *s; s++) {
|
|
|
574 if (*s == ' ' && *d == ' ') {
|
|
|
575 continue;
|
|
|
576 }
|
|
|
577
|
|
|
578 if (*s == LF || *s == CR) {
|
|
|
579 continue;
|
|
|
580 }
|
|
|
581
|
|
|
582 *++d = *s;
|
|
|
583 }
|
|
|
584
|
|
|
585 if (*d != ' ') {
|
|
|
586 d++;
|
|
|
587 }
|
|
|
588
|
|
|
589 *d = '\0';
|
|
|
590
|
|
132
|
591 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
592 "SSL: %s, cipher: \"%s\"",
|
|
126
|
593 SSL_get_version(c->ssl->connection), &buf[1]);
|
|
96
|
594
|
|
|
595 if (SSL_session_reused(c->ssl->connection)) {
|
|
132
|
596 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
597 "SSL reused session");
|
|
|
598 }
|
|
|
599
|
|
|
600 } else {
|
|
|
601 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
602 "SSL no shared ciphers");
|
|
96
|
603 }
|
|
|
604 }
|
|
|
605 #endif
|
|
|
606
|
|
|
607 c->ssl->handshaked = 1;
|
|
|
608
|
|
|
609 c->recv = ngx_ssl_recv;
|
|
|
610 c->send = ngx_ssl_write;
|
|
126
|
611 c->recv_chain = ngx_ssl_recv_chain;
|
|
|
612 c->send_chain = ngx_ssl_send_chain;
|
|
96
|
613
|
|
542
|
614 /* initial handshake done, disable renegotiation (CVE-2009-3555) */
|
|
|
615 if (c->ssl->connection->s3) {
|
|
|
616 c->ssl->connection->s3->flags |= SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS;
|
|
|
617 }
|
|
|
618
|
|
96
|
619 return NGX_OK;
|
|
|
620 }
|
|
|
621
|
|
|
622 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
623
|
|
|
624 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
625
|
|
|
626 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
627 c->read->ready = 0;
|
|
|
628 c->read->handler = ngx_ssl_handshake_handler;
|
|
140
|
629 c->write->handler = ngx_ssl_handshake_handler;
|
|
96
|
630
|
|
430
|
631 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
96
|
632 return NGX_ERROR;
|
|
|
633 }
|
|
|
634
|
|
|
635 return NGX_AGAIN;
|
|
|
636 }
|
|
|
637
|
|
|
638 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
639 c->write->ready = 0;
|
|
140
|
640 c->read->handler = ngx_ssl_handshake_handler;
|
|
96
|
641 c->write->handler = ngx_ssl_handshake_handler;
|
|
|
642
|
|
430
|
643 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
96
|
644 return NGX_ERROR;
|
|
|
645 }
|
|
|
646
|
|
|
647 return NGX_AGAIN;
|
|
|
648 }
|
|
|
649
|
|
|
650 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
651
|
|
|
652 c->ssl->no_wait_shutdown = 1;
|
|
|
653 c->ssl->no_send_shutdown = 1;
|
|
140
|
654 c->read->eof = 1;
|
|
96
|
655
|
|
|
656 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
|
657 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
126
|
658 "peer closed connection in SSL handshake");
|
|
96
|
659
|
|
|
660 return NGX_ERROR;
|
|
|
661 }
|
|
|
662
|
|
140
|
663 c->read->error = 1;
|
|
|
664
|
|
96
|
665 ngx_ssl_connection_error(c, sslerr, err, "SSL_do_handshake() failed");
|
|
|
666
|
|
|
667 return NGX_ERROR;
|
|
|
668 }
|
|
|
669
|
|
|
670
|
|
|
671 static void
|
|
|
672 ngx_ssl_handshake_handler(ngx_event_t *ev)
|
|
|
673 {
|
|
|
674 ngx_connection_t *c;
|
|
|
675
|
|
|
676 c = ev->data;
|
|
|
677
|
|
98
|
678 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
679 "SSL handshake handler: %d", ev->write);
|
|
96
|
680
|
|
140
|
681 if (ev->timedout) {
|
|
|
682 c->ssl->handler(c);
|
|
|
683 return;
|
|
|
684 }
|
|
|
685
|
|
96
|
686 if (ngx_ssl_handshake(c) == NGX_AGAIN) {
|
|
|
687 return;
|
|
|
688 }
|
|
|
689
|
|
|
690 c->ssl->handler(c);
|
|
|
691 }
|
|
|
692
|
|
|
693
|
|
38
|
694 ssize_t
|
|
126
|
695 ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl)
|
|
|
696 {
|
|
294
|
697 u_char *last;
|
|
126
|
698 ssize_t n, bytes;
|
|
|
699 ngx_buf_t *b;
|
|
|
700
|
|
|
701 bytes = 0;
|
|
|
702
|
|
294
|
703 b = cl->buf;
|
|
|
704 last = b->last;
|
|
|
705
|
|
|
706 for ( ;; ) {
|
|
|
707
|
|
|
708 n = ngx_ssl_recv(c, last, b->end - last);
|
|
126
|
709
|
|
|
710 if (n > 0) {
|
|
294
|
711 last += n;
|
|
126
|
712 bytes += n;
|
|
|
713
|
|
294
|
714 if (last == b->end) {
|
|
126
|
715 cl = cl->next;
|
|
294
|
716
|
|
|
717 if (cl == NULL) {
|
|
|
718 return bytes;
|
|
|
719 }
|
|
|
720
|
|
|
721 b = cl->buf;
|
|
|
722 last = b->last;
|
|
126
|
723 }
|
|
|
724
|
|
|
725 continue;
|
|
|
726 }
|
|
|
727
|
|
|
728 if (bytes) {
|
|
382
|
729
|
|
|
730 if (n == 0 || n == NGX_ERROR) {
|
|
|
731 c->read->ready = 1;
|
|
|
732 }
|
|
|
733
|
|
126
|
734 return bytes;
|
|
|
735 }
|
|
|
736
|
|
|
737 return n;
|
|
|
738 }
|
|
|
739 }
|
|
|
740
|
|
|
741
|
|
|
742 ssize_t
|
|
38
|
743 ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size)
|
|
0
|
744 {
|
|
38
|
745 int n, bytes;
|
|
|
746
|
|
|
747 if (c->ssl->last == NGX_ERROR) {
|
|
330
|
748 c->read->error = 1;
|
|
38
|
749 return NGX_ERROR;
|
|
|
750 }
|
|
|
751
|
|
126
|
752 if (c->ssl->last == NGX_DONE) {
|
|
330
|
753 c->read->ready = 0;
|
|
|
754 c->read->eof = 1;
|
|
126
|
755 return 0;
|
|
|
756 }
|
|
|
757
|
|
38
|
758 bytes = 0;
|
|
0
|
759
|
|
358
|
760 ngx_ssl_clear_error(c->log);
|
|
|
761
|
|
38
|
762 /*
|
|
|
763 * SSL_read() may return data in parts, so try to read
|
|
|
764 * until SSL_read() would return no data
|
|
|
765 */
|
|
|
766
|
|
|
767 for ( ;; ) {
|
|
0
|
768
|
|
92
|
769 n = SSL_read(c->ssl->connection, buf, size);
|
|
38
|
770
|
|
126
|
771 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_read: %d", n);
|
|
0
|
772
|
|
38
|
773 if (n > 0) {
|
|
|
774 bytes += n;
|
|
|
775 }
|
|
|
776
|
|
|
777 c->ssl->last = ngx_ssl_handle_recv(c, n);
|
|
|
778
|
|
330
|
779 if (c->ssl->last == NGX_OK) {
|
|
|
780
|
|
|
781 size -= n;
|
|
|
782
|
|
|
783 if (size == 0) {
|
|
38
|
784 return bytes;
|
|
126
|
785 }
|
|
38
|
786
|
|
330
|
787 buf += n;
|
|
|
788
|
|
|
789 continue;
|
|
|
790 }
|
|
|
791
|
|
|
792 if (bytes) {
|
|
|
793 return bytes;
|
|
|
794 }
|
|
|
795
|
|
|
796 switch (c->ssl->last) {
|
|
|
797
|
|
|
798 case NGX_DONE:
|
|
|
799 c->read->ready = 0;
|
|
|
800 c->read->eof = 1;
|
|
|
801 return 0;
|
|
|
802
|
|
|
803 case NGX_ERROR:
|
|
|
804 c->read->error = 1;
|
|
|
805
|
|
|
806 /* fall thruogh */
|
|
|
807
|
|
|
808 case NGX_AGAIN:
|
|
126
|
809 return c->ssl->last;
|
|
28
|
810 }
|
|
38
|
811 }
|
|
|
812 }
|
|
|
813
|
|
|
814
|
|
|
815 static ngx_int_t
|
|
|
816 ngx_ssl_handle_recv(ngx_connection_t *c, int n)
|
|
|
817 {
|
|
96
|
818 int sslerr;
|
|
|
819 ngx_err_t err;
|
|
38
|
820
|
|
542
|
821 if (c->ssl->renegotiation) {
|
|
|
822 /*
|
|
|
823 * disable renegotiation (CVE-2009-3555):
|
|
|
824 * OpenSSL (at least up to 0.9.8l) does not handle disabled
|
|
|
825 * renegotiation gracefully, so drop connection here
|
|
|
826 */
|
|
|
827
|
|
|
828 ngx_log_error(NGX_LOG_NOTICE, c->log, 0, "SSL renegotiation disabled");
|
|
|
829
|
|
|
830 c->ssl->no_wait_shutdown = 1;
|
|
|
831 c->ssl->no_send_shutdown = 1;
|
|
|
832
|
|
|
833 return NGX_ERROR;
|
|
|
834 }
|
|
|
835
|
|
38
|
836 if (n > 0) {
|
|
28
|
837
|
|
22
|
838 if (c->ssl->saved_write_handler) {
|
|
|
839
|
|
58
|
840 c->write->handler = c->ssl->saved_write_handler;
|
|
22
|
841 c->ssl->saved_write_handler = NULL;
|
|
|
842 c->write->ready = 1;
|
|
|
843
|
|
430
|
844 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
22
|
845 return NGX_ERROR;
|
|
|
846 }
|
|
|
847
|
|
112
|
848 ngx_post_event(c->write, &ngx_posted_events);
|
|
22
|
849 }
|
|
|
850
|
|
38
|
851 return NGX_OK;
|
|
0
|
852 }
|
|
|
853
|
|
92
|
854 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
855
|
|
|
856 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
857
|
|
|
858 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
859
|
|
|
860 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
4
|
861 c->read->ready = 0;
|
|
0
|
862 return NGX_AGAIN;
|
|
|
863 }
|
|
|
864
|
|
|
865 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
88
|
866
|
|
96
|
867 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
868 "peer started SSL renegotiation");
|
|
22
|
869
|
|
|
870 c->write->ready = 0;
|
|
|
871
|
|
430
|
872 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
22
|
873 return NGX_ERROR;
|
|
|
874 }
|
|
|
875
|
|
|
876 /*
|
|
|
877 * we do not set the timer because there is already the read event timer
|
|
|
878 */
|
|
|
879
|
|
|
880 if (c->ssl->saved_write_handler == NULL) {
|
|
58
|
881 c->ssl->saved_write_handler = c->write->handler;
|
|
|
882 c->write->handler = ngx_ssl_write_handler;
|
|
22
|
883 }
|
|
|
884
|
|
0
|
885 return NGX_AGAIN;
|
|
|
886 }
|
|
|
887
|
|
96
|
888 c->ssl->no_wait_shutdown = 1;
|
|
|
889 c->ssl->no_send_shutdown = 1;
|
|
0
|
890
|
|
|
891 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
126
|
892 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
893 "peer shutdown SSL cleanly");
|
|
|
894 return NGX_DONE;
|
|
0
|
895 }
|
|
|
896
|
|
96
|
897 ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");
|
|
0
|
898
|
|
|
899 return NGX_ERROR;
|
|
|
900 }
|
|
|
901
|
|
|
902
|
|
38
|
903 static void
|
|
|
904 ngx_ssl_write_handler(ngx_event_t *wev)
|
|
22
|
905 {
|
|
|
906 ngx_connection_t *c;
|
|
|
907
|
|
|
908 c = wev->data;
|
|
96
|
909
|
|
58
|
910 c->read->handler(c->read);
|
|
22
|
911 }
|
|
|
912
|
|
|
913
|
|
0
|
914 /*
|
|
|
915 * OpenSSL has no SSL_writev() so we copy several bufs into our 16K buffer
|
|
22
|
916 * before the SSL_write() call to decrease a SSL overhead.
|
|
0
|
917 *
|
|
|
918 * Besides for protocols such as HTTP it is possible to always buffer
|
|
|
919 * the output to decrease a SSL overhead some more.
|
|
|
920 */
|
|
|
921
|
|
38
|
922 ngx_chain_t *
|
|
|
923 ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
|
|
0
|
924 {
|
|
|
925 int n;
|
|
|
926 ngx_uint_t flush;
|
|
|
927 ssize_t send, size;
|
|
|
928 ngx_buf_t *buf;
|
|
|
929
|
|
416
|
930 if (!c->ssl->buffer) {
|
|
0
|
931
|
|
126
|
932 while (in) {
|
|
|
933 if (ngx_buf_special(in->buf)) {
|
|
|
934 in = in->next;
|
|
|
935 continue;
|
|
|
936 }
|
|
0
|
937
|
|
126
|
938 n = ngx_ssl_write(c, in->buf->pos, in->buf->last - in->buf->pos);
|
|
|
939
|
|
|
940 if (n == NGX_ERROR) {
|
|
|
941 return NGX_CHAIN_ERROR;
|
|
|
942 }
|
|
0
|
943
|
|
126
|
944 if (n == NGX_AGAIN) {
|
|
146
|
945 c->buffered |= NGX_SSL_BUFFERED;
|
|
126
|
946 return in;
|
|
|
947 }
|
|
|
948
|
|
|
949 in->buf->pos += n;
|
|
|
950
|
|
|
951 if (in->buf->pos == in->buf->last) {
|
|
|
952 in = in->next;
|
|
|
953 }
|
|
0
|
954 }
|
|
|
955
|
|
|
956 return in;
|
|
|
957 }
|
|
|
958
|
|
22
|
959
|
|
|
960 /* the maximum limit size is the maximum uint32_t value - the page size */
|
|
|
961
|
|
324
|
962 if (limit == 0 || limit > (off_t) (NGX_MAX_UINT32_VALUE - ngx_pagesize)) {
|
|
22
|
963 limit = NGX_MAX_UINT32_VALUE - ngx_pagesize;
|
|
|
964 }
|
|
|
965
|
|
126
|
966 buf = c->ssl->buf;
|
|
358
|
967
|
|
|
968 if (buf == NULL) {
|
|
|
969 buf = ngx_create_temp_buf(c->pool, NGX_SSL_BUFSIZE);
|
|
|
970 if (buf == NULL) {
|
|
|
971 return NGX_CHAIN_ERROR;
|
|
|
972 }
|
|
|
973
|
|
|
974 c->ssl->buf = buf;
|
|
|
975 }
|
|
|
976
|
|
|
977 if (buf->start == NULL) {
|
|
|
978 buf->start = ngx_palloc(c->pool, NGX_SSL_BUFSIZE);
|
|
|
979 if (buf->start == NULL) {
|
|
|
980 return NGX_CHAIN_ERROR;
|
|
|
981 }
|
|
|
982
|
|
|
983 buf->pos = buf->start;
|
|
|
984 buf->last = buf->start;
|
|
|
985 buf->end = buf->start + NGX_SSL_BUFSIZE;
|
|
|
986 }
|
|
|
987
|
|
0
|
988 send = 0;
|
|
|
989 flush = (in == NULL) ? 1 : 0;
|
|
|
990
|
|
|
991 for ( ;; ) {
|
|
|
992
|
|
540
|
993 while (in && buf->last < buf->end && send < limit) {
|
|
132
|
994 if (in->buf->last_buf || in->buf->flush) {
|
|
0
|
995 flush = 1;
|
|
|
996 }
|
|
|
997
|
|
|
998 if (ngx_buf_special(in->buf)) {
|
|
|
999 in = in->next;
|
|
|
1000 continue;
|
|
|
1001 }
|
|
|
1002
|
|
|
1003 size = in->buf->last - in->buf->pos;
|
|
|
1004
|
|
|
1005 if (size > buf->end - buf->last) {
|
|
|
1006 size = buf->end - buf->last;
|
|
|
1007 }
|
|
|
1008
|
|
|
1009 if (send + size > limit) {
|
|
126
|
1010 size = (ssize_t) (limit - send);
|
|
0
|
1011 flush = 1;
|
|
|
1012 }
|
|
|
1013
|
|
|
1014 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1015 "SSL buf copy: %d", size);
|
|
|
1016
|
|
|
1017 ngx_memcpy(buf->last, in->buf->pos, size);
|
|
|
1018
|
|
|
1019 buf->last += size;
|
|
|
1020 in->buf->pos += size;
|
|
540
|
1021 send += size;
|
|
126
|
1022
|
|
0
|
1023 if (in->buf->pos == in->buf->last) {
|
|
|
1024 in = in->next;
|
|
|
1025 }
|
|
|
1026 }
|
|
|
1027
|
|
|
1028 size = buf->last - buf->pos;
|
|
|
1029
|
|
|
1030 if (!flush && buf->last < buf->end && c->ssl->buffer) {
|
|
|
1031 break;
|
|
|
1032 }
|
|
|
1033
|
|
|
1034 n = ngx_ssl_write(c, buf->pos, size);
|
|
|
1035
|
|
|
1036 if (n == NGX_ERROR) {
|
|
|
1037 return NGX_CHAIN_ERROR;
|
|
|
1038 }
|
|
|
1039
|
|
60
|
1040 if (n == NGX_AGAIN) {
|
|
146
|
1041 c->buffered |= NGX_SSL_BUFFERED;
|
|
60
|
1042 return in;
|
|
0
|
1043 }
|
|
|
1044
|
|
|
1045 buf->pos += n;
|
|
|
1046 c->sent += n;
|
|
|
1047
|
|
|
1048 if (n < size) {
|
|
|
1049 break;
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 if (buf->pos == buf->last) {
|
|
|
1053 buf->pos = buf->start;
|
|
|
1054 buf->last = buf->start;
|
|
|
1055 }
|
|
|
1056
|
|
|
1057 if (in == NULL || send == limit) {
|
|
|
1058 break;
|
|
|
1059 }
|
|
|
1060 }
|
|
|
1061
|
|
146
|
1062 if (buf->pos < buf->last) {
|
|
|
1063 c->buffered |= NGX_SSL_BUFFERED;
|
|
|
1064
|
|
|
1065 } else {
|
|
|
1066 c->buffered &= ~NGX_SSL_BUFFERED;
|
|
|
1067 }
|
|
0
|
1068
|
|
|
1069 return in;
|
|
|
1070 }
|
|
|
1071
|
|
|
1072
|
|
88
|
1073 ssize_t
|
|
38
|
1074 ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size)
|
|
0
|
1075 {
|
|
96
|
1076 int n, sslerr;
|
|
|
1077 ngx_err_t err;
|
|
0
|
1078
|
|
358
|
1079 ngx_ssl_clear_error(c->log);
|
|
|
1080
|
|
0
|
1081 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %d", size);
|
|
|
1082
|
|
92
|
1083 n = SSL_write(c->ssl->connection, data, size);
|
|
0
|
1084
|
|
|
1085 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_write: %d", n);
|
|
|
1086
|
|
|
1087 if (n > 0) {
|
|
88
|
1088
|
|
22
|
1089 if (c->ssl->saved_read_handler) {
|
|
|
1090
|
|
58
|
1091 c->read->handler = c->ssl->saved_read_handler;
|
|
22
|
1092 c->ssl->saved_read_handler = NULL;
|
|
|
1093 c->read->ready = 1;
|
|
|
1094
|
|
430
|
1095 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
22
|
1096 return NGX_ERROR;
|
|
|
1097 }
|
|
|
1098
|
|
112
|
1099 ngx_post_event(c->read, &ngx_posted_events);
|
|
22
|
1100 }
|
|
|
1101
|
|
0
|
1102 return n;
|
|
|
1103 }
|
|
|
1104
|
|
92
|
1105 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
1106
|
|
|
1107 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
1108
|
|
|
1109 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
1110
|
|
|
1111 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
1112 c->write->ready = 0;
|
|
|
1113 return NGX_AGAIN;
|
|
|
1114 }
|
|
|
1115
|
|
|
1116 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
2
|
1117
|
|
96
|
1118 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
1119 "peer started SSL renegotiation");
|
|
22
|
1120
|
|
|
1121 c->read->ready = 0;
|
|
|
1122
|
|
430
|
1123 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
22
|
1124 return NGX_ERROR;
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 /*
|
|
|
1128 * we do not set the timer because there is already
|
|
|
1129 * the write event timer
|
|
|
1130 */
|
|
|
1131
|
|
|
1132 if (c->ssl->saved_read_handler == NULL) {
|
|
58
|
1133 c->ssl->saved_read_handler = c->read->handler;
|
|
|
1134 c->read->handler = ngx_ssl_read_handler;
|
|
22
|
1135 }
|
|
|
1136
|
|
0
|
1137 return NGX_AGAIN;
|
|
|
1138 }
|
|
|
1139
|
|
96
|
1140 c->ssl->no_wait_shutdown = 1;
|
|
|
1141 c->ssl->no_send_shutdown = 1;
|
|
140
|
1142 c->write->error = 1;
|
|
92
|
1143
|
|
96
|
1144 ngx_ssl_connection_error(c, sslerr, err, "SSL_write() failed");
|
|
0
|
1145
|
|
|
1146 return NGX_ERROR;
|
|
|
1147 }
|
|
|
1148
|
|
|
1149
|
|
38
|
1150 static void
|
|
|
1151 ngx_ssl_read_handler(ngx_event_t *rev)
|
|
22
|
1152 {
|
|
|
1153 ngx_connection_t *c;
|
|
|
1154
|
|
|
1155 c = rev->data;
|
|
96
|
1156
|
|
58
|
1157 c->write->handler(c->write);
|
|
22
|
1158 }
|
|
|
1159
|
|
|
1160
|
|
358
|
1161 void
|
|
|
1162 ngx_ssl_free_buffer(ngx_connection_t *c)
|
|
|
1163 {
|
|
360
|
1164 if (c->ssl->buf && c->ssl->buf->start) {
|
|
|
1165 if (ngx_pfree(c->pool, c->ssl->buf->start) == NGX_OK) {
|
|
|
1166 c->ssl->buf->start = NULL;
|
|
|
1167 }
|
|
358
|
1168 }
|
|
|
1169 }
|
|
|
1170
|
|
|
1171
|
|
38
|
1172 ngx_int_t
|
|
|
1173 ngx_ssl_shutdown(ngx_connection_t *c)
|
|
0
|
1174 {
|
|
358
|
1175 int n, sslerr, mode;
|
|
|
1176 ngx_err_t err;
|
|
0
|
1177
|
|
126
|
1178 if (c->timedout) {
|
|
96
|
1179 mode = SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN;
|
|
0
|
1180
|
|
96
|
1181 } else {
|
|
|
1182 mode = SSL_get_shutdown(c->ssl->connection);
|
|
22
|
1183
|
|
96
|
1184 if (c->ssl->no_wait_shutdown) {
|
|
|
1185 mode |= SSL_RECEIVED_SHUTDOWN;
|
|
0
|
1186 }
|
|
|
1187
|
|
96
|
1188 if (c->ssl->no_send_shutdown) {
|
|
|
1189 mode |= SSL_SENT_SHUTDOWN;
|
|
0
|
1190 }
|
|
|
1191 }
|
|
|
1192
|
|
96
|
1193 SSL_set_shutdown(c->ssl->connection, mode);
|
|
|
1194
|
|
358
|
1195 ngx_ssl_clear_error(c->log);
|
|
|
1196
|
|
|
1197 n = SSL_shutdown(c->ssl->connection);
|
|
|
1198
|
|
|
1199 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_shutdown: %d", n);
|
|
|
1200
|
|
10
|
1201 sslerr = 0;
|
|
0
|
1202
|
|
364
|
1203 /* SSL_shutdown() never returns -1, on error it returns 0 */
|
|
|
1204
|
|
|
1205 if (n != 1 && ERR_peek_error()) {
|
|
92
|
1206 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
1207
|
|
|
1208 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1209 "SSL_get_error: %d", sslerr);
|
|
|
1210 }
|
|
|
1211
|
|
364
|
1212 if (n == 1 || sslerr == 0 || sslerr == SSL_ERROR_ZERO_RETURN) {
|
|
358
|
1213 SSL_free(c->ssl->connection);
|
|
|
1214 c->ssl = NULL;
|
|
|
1215
|
|
|
1216 return NGX_OK;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 if (sslerr == SSL_ERROR_WANT_READ || sslerr == SSL_ERROR_WANT_WRITE) {
|
|
126
|
1220 c->read->handler = ngx_ssl_shutdown_handler;
|
|
138
|
1221 c->write->handler = ngx_ssl_shutdown_handler;
|
|
126
|
1222
|
|
430
|
1223 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
0
|
1224 return NGX_ERROR;
|
|
|
1225 }
|
|
|
1226
|
|
430
|
1227 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
0
|
1228 return NGX_ERROR;
|
|
|
1229 }
|
|
|
1230
|
|
358
|
1231 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
138
|
1232 ngx_add_timer(c->read, 30000);
|
|
|
1233 }
|
|
|
1234
|
|
0
|
1235 return NGX_AGAIN;
|
|
|
1236 }
|
|
|
1237
|
|
140
|
1238 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
1239
|
|
|
1240 ngx_ssl_connection_error(c, sslerr, err, "SSL_shutdown() failed");
|
|
0
|
1241
|
|
92
|
1242 SSL_free(c->ssl->connection);
|
|
|
1243 c->ssl = NULL;
|
|
|
1244
|
|
0
|
1245 return NGX_ERROR;
|
|
|
1246 }
|
|
|
1247
|
|
|
1248
|
|
96
|
1249 static void
|
|
126
|
1250 ngx_ssl_shutdown_handler(ngx_event_t *ev)
|
|
|
1251 {
|
|
|
1252 ngx_connection_t *c;
|
|
|
1253 ngx_connection_handler_pt handler;
|
|
|
1254
|
|
|
1255 c = ev->data;
|
|
|
1256 handler = c->ssl->handler;
|
|
|
1257
|
|
|
1258 if (ev->timedout) {
|
|
|
1259 c->timedout = 1;
|
|
|
1260 }
|
|
|
1261
|
|
272
|
1262 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "SSL shutdown handler");
|
|
126
|
1263
|
|
|
1264 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
1265 return;
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 handler(c);
|
|
|
1269 }
|
|
|
1270
|
|
|
1271
|
|
|
1272 static void
|
|
96
|
1273 ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
|
|
|
1274 char *text)
|
|
|
1275 {
|
|
364
|
1276 int n;
|
|
96
|
1277 ngx_uint_t level;
|
|
|
1278
|
|
|
1279 level = NGX_LOG_CRIT;
|
|
|
1280
|
|
|
1281 if (sslerr == SSL_ERROR_SYSCALL) {
|
|
|
1282
|
|
|
1283 if (err == NGX_ECONNRESET
|
|
|
1284 || err == NGX_EPIPE
|
|
|
1285 || err == NGX_ENOTCONN
|
|
138
|
1286 || err == NGX_ETIMEDOUT
|
|
96
|
1287 || err == NGX_ECONNREFUSED
|
|
364
|
1288 || err == NGX_ENETDOWN
|
|
|
1289 || err == NGX_ENETUNREACH
|
|
|
1290 || err == NGX_EHOSTDOWN
|
|
96
|
1291 || err == NGX_EHOSTUNREACH)
|
|
|
1292 {
|
|
|
1293 switch (c->log_error) {
|
|
|
1294
|
|
|
1295 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1296 case NGX_ERROR_INFO:
|
|
|
1297 level = NGX_LOG_INFO;
|
|
|
1298 break;
|
|
|
1299
|
|
|
1300 case NGX_ERROR_ERR:
|
|
|
1301 level = NGX_LOG_ERR;
|
|
|
1302 break;
|
|
|
1303
|
|
|
1304 default:
|
|
|
1305 break;
|
|
|
1306 }
|
|
|
1307 }
|
|
364
|
1308
|
|
|
1309 } else if (sslerr == SSL_ERROR_SSL) {
|
|
|
1310
|
|
|
1311 n = ERR_GET_REASON(ERR_peek_error());
|
|
|
1312
|
|
|
1313 /* handshake failures */
|
|
592
|
1314 if (n == SSL_R_BLOCK_CIPHER_PAD_IS_WRONG /* 129 */
|
|
|
1315 || n == SSL_R_DIGEST_CHECK_FAILED /* 149 */
|
|
564
|
1316 || n == SSL_R_LENGTH_MISMATCH /* 159 */
|
|
420
|
1317 || n == SSL_R_NO_CIPHERS_PASSED /* 182 */
|
|
564
|
1318 || n == SSL_R_NO_CIPHERS_SPECIFIED /* 183 */
|
|
420
|
1319 || n == SSL_R_NO_SHARED_CIPHER /* 193 */
|
|
564
|
1320 || n == SSL_R_RECORD_LENGTH_MISMATCH /* 213 */
|
|
420
|
1321 || n == SSL_R_UNEXPECTED_MESSAGE /* 244 */
|
|
|
1322 || n == SSL_R_UNEXPECTED_RECORD /* 245 */
|
|
564
|
1323 || n == SSL_R_UNKNOWN_ALERT_TYPE /* 246 */
|
|
552
|
1324 || n == SSL_R_UNKNOWN_PROTOCOL /* 252 */
|
|
420
|
1325 || n == SSL_R_WRONG_VERSION_NUMBER /* 267 */
|
|
|
1326 || n == SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC /* 281 */
|
|
364
|
1327 || n == 1000 /* SSL_R_SSLV3_ALERT_CLOSE_NOTIFY */
|
|
420
|
1328 || n == SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE /* 1010 */
|
|
|
1329 || n == SSL_R_SSLV3_ALERT_BAD_RECORD_MAC /* 1020 */
|
|
|
1330 || n == SSL_R_TLSV1_ALERT_DECRYPTION_FAILED /* 1021 */
|
|
|
1331 || n == SSL_R_TLSV1_ALERT_RECORD_OVERFLOW /* 1022 */
|
|
|
1332 || n == SSL_R_SSLV3_ALERT_DECOMPRESSION_FAILURE /* 1030 */
|
|
|
1333 || n == SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE /* 1040 */
|
|
|
1334 || n == SSL_R_SSLV3_ALERT_NO_CERTIFICATE /* 1041 */
|
|
|
1335 || n == SSL_R_SSLV3_ALERT_BAD_CERTIFICATE /* 1042 */
|
|
|
1336 || n == SSL_R_SSLV3_ALERT_UNSUPPORTED_CERTIFICATE /* 1043 */
|
|
|
1337 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED /* 1044 */
|
|
|
1338 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED /* 1045 */
|
|
|
1339 || n == SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN /* 1046 */
|
|
|
1340 || n == SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER /* 1047 */
|
|
|
1341 || n == SSL_R_TLSV1_ALERT_UNKNOWN_CA /* 1048 */
|
|
|
1342 || n == SSL_R_TLSV1_ALERT_ACCESS_DENIED /* 1049 */
|
|
|
1343 || n == SSL_R_TLSV1_ALERT_DECODE_ERROR /* 1050 */
|
|
|
1344 || n == SSL_R_TLSV1_ALERT_DECRYPT_ERROR /* 1051 */
|
|
|
1345 || n == SSL_R_TLSV1_ALERT_EXPORT_RESTRICTION /* 1060 */
|
|
|
1346 || n == SSL_R_TLSV1_ALERT_PROTOCOL_VERSION /* 1070 */
|
|
|
1347 || n == SSL_R_TLSV1_ALERT_INSUFFICIENT_SECURITY /* 1071 */
|
|
|
1348 || n == SSL_R_TLSV1_ALERT_INTERNAL_ERROR /* 1080 */
|
|
|
1349 || n == SSL_R_TLSV1_ALERT_USER_CANCELLED /* 1090 */
|
|
|
1350 || n == SSL_R_TLSV1_ALERT_NO_RENEGOTIATION) /* 1100 */
|
|
364
|
1351 {
|
|
|
1352 switch (c->log_error) {
|
|
|
1353
|
|
|
1354 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1355 case NGX_ERROR_INFO:
|
|
|
1356 level = NGX_LOG_INFO;
|
|
|
1357 break;
|
|
|
1358
|
|
|
1359 case NGX_ERROR_ERR:
|
|
|
1360 level = NGX_LOG_ERR;
|
|
|
1361 break;
|
|
|
1362
|
|
|
1363 default:
|
|
|
1364 break;
|
|
|
1365 }
|
|
|
1366 }
|
|
96
|
1367 }
|
|
|
1368
|
|
|
1369 ngx_ssl_error(level, c->log, err, text);
|
|
|
1370 }
|
|
|
1371
|
|
|
1372
|
|
358
|
1373 static void
|
|
|
1374 ngx_ssl_clear_error(ngx_log_t *log)
|
|
|
1375 {
|
|
364
|
1376 while (ERR_peek_error()) {
|
|
358
|
1377 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "ignoring stale global SSL error");
|
|
|
1378 }
|
|
364
|
1379
|
|
|
1380 ERR_clear_error();
|
|
358
|
1381 }
|
|
|
1382
|
|
|
1383
|
|
132
|
1384 void ngx_cdecl
|
|
38
|
1385 ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, char *fmt, ...)
|
|
126
|
1386 {
|
|
364
|
1387 u_long n;
|
|
|
1388 va_list args;
|
|
|
1389 u_char *p, *last;
|
|
|
1390 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
10
|
1391
|
|
|
1392 last = errstr + NGX_MAX_CONF_ERRSTR;
|
|
0
|
1393
|
|
|
1394 va_start(args, fmt);
|
|
484
|
1395 p = ngx_vslprintf(errstr, last - 1, fmt, args);
|
|
0
|
1396 va_end(args);
|
|
|
1397
|
|
96
|
1398 p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);
|
|
|
1399
|
|
364
|
1400 for ( ;; ) {
|
|
132
|
1401
|
|
|
1402 n = ERR_get_error();
|
|
|
1403
|
|
|
1404 if (n == 0) {
|
|
|
1405 break;
|
|
|
1406 }
|
|
96
|
1407
|
|
364
|
1408 if (p >= last) {
|
|
|
1409 continue;
|
|
|
1410 }
|
|
|
1411
|
|
96
|
1412 *p++ = ' ';
|
|
0
|
1413
|
|
96
|
1414 ERR_error_string_n(n, (char *) p, last - p);
|
|
|
1415
|
|
|
1416 while (p < last && *p) {
|
|
|
1417 p++;
|
|
|
1418 }
|
|
|
1419 }
|
|
0
|
1420
|
|
|
1421 ngx_log_error(level, log, err, "%s)", errstr);
|
|
|
1422 }
|
|
58
|
1423
|
|
|
1424
|
|
272
|
1425 ngx_int_t
|
|
|
1426 ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
|
|
|
1427 ssize_t builtin_session_cache, ngx_shm_zone_t *shm_zone, time_t timeout)
|
|
|
1428 {
|
|
|
1429 long cache_mode;
|
|
|
1430
|
|
358
|
1431 if (builtin_session_cache == NGX_SSL_NO_SCACHE) {
|
|
|
1432 SSL_CTX_set_session_cache_mode(ssl->ctx, SSL_SESS_CACHE_OFF);
|
|
|
1433 return NGX_OK;
|
|
|
1434 }
|
|
|
1435
|
|
564
|
1436 SSL_CTX_set_session_id_context(ssl->ctx, sess_ctx->data, sess_ctx->len);
|
|
|
1437
|
|
378
|
1438 if (builtin_session_cache == NGX_SSL_NONE_SCACHE) {
|
|
|
1439
|
|
|
1440 /*
|
|
|
1441 * If the server explicitly says that it does not support
|
|
|
1442 * session reuse (see SSL_SESS_CACHE_OFF above), then
|
|
|
1443 * Outlook Express fails to upload a sent email to
|
|
|
1444 * the Sent Items folder on the IMAP server via a separate IMAP
|
|
|
1445 * connection in the background. Therefore we have a special
|
|
|
1446 * mode (SSL_SESS_CACHE_SERVER|SSL_SESS_CACHE_NO_INTERNAL_STORE)
|
|
|
1447 * where the server pretends that it supports session reuse,
|
|
|
1448 * but it does not actually store any session.
|
|
|
1449 */
|
|
|
1450
|
|
|
1451 SSL_CTX_set_session_cache_mode(ssl->ctx,
|
|
|
1452 SSL_SESS_CACHE_SERVER
|
|
|
1453 |SSL_SESS_CACHE_NO_AUTO_CLEAR
|
|
|
1454 |SSL_SESS_CACHE_NO_INTERNAL_STORE);
|
|
|
1455
|
|
|
1456 SSL_CTX_sess_set_cache_size(ssl->ctx, 1);
|
|
|
1457
|
|
|
1458 return NGX_OK;
|
|
|
1459 }
|
|
|
1460
|
|
272
|
1461 cache_mode = SSL_SESS_CACHE_SERVER;
|
|
|
1462
|
|
|
1463 if (shm_zone && builtin_session_cache == NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1464 cache_mode |= SSL_SESS_CACHE_NO_INTERNAL;
|
|
|
1465 }
|
|
|
1466
|
|
|
1467 SSL_CTX_set_session_cache_mode(ssl->ctx, cache_mode);
|
|
|
1468
|
|
|
1469 if (builtin_session_cache != NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1470
|
|
|
1471 if (builtin_session_cache != NGX_SSL_DFLT_BUILTIN_SCACHE) {
|
|
|
1472 SSL_CTX_sess_set_cache_size(ssl->ctx, builtin_session_cache);
|
|
|
1473 }
|
|
|
1474 }
|
|
|
1475
|
|
480
|
1476 SSL_CTX_set_timeout(ssl->ctx, (long) timeout);
|
|
274
|
1477
|
|
272
|
1478 if (shm_zone) {
|
|
|
1479 shm_zone->init = ngx_ssl_session_cache_init;
|
|
|
1480
|
|
|
1481 SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_session);
|
|
|
1482 SSL_CTX_sess_set_get_cb(ssl->ctx, ngx_ssl_get_cached_session);
|
|
|
1483 SSL_CTX_sess_set_remove_cb(ssl->ctx, ngx_ssl_remove_session);
|
|
|
1484
|
|
|
1485 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_session_cache_index, shm_zone)
|
|
|
1486 == 0)
|
|
|
1487 {
|
|
|
1488 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
1489 "SSL_CTX_set_ex_data() failed");
|
|
|
1490 return NGX_ERROR;
|
|
|
1491 }
|
|
|
1492 }
|
|
|
1493
|
|
|
1494 return NGX_OK;
|
|
|
1495 }
|
|
|
1496
|
|
|
1497
|
|
|
1498 static ngx_int_t
|
|
|
1499 ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
|
|
|
1500 {
|
|
468
|
1501 size_t len;
|
|
272
|
1502 ngx_slab_pool_t *shpool;
|
|
|
1503 ngx_ssl_session_cache_t *cache;
|
|
|
1504
|
|
|
1505 if (data) {
|
|
|
1506 shm_zone->data = data;
|
|
|
1507 return NGX_OK;
|
|
|
1508 }
|
|
|
1509
|
|
480
|
1510 if (shm_zone->shm.exists) {
|
|
|
1511 shm_zone->data = data;
|
|
|
1512 return NGX_OK;
|
|
|
1513 }
|
|
|
1514
|
|
272
|
1515 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1516
|
|
|
1517 cache = ngx_slab_alloc(shpool, sizeof(ngx_ssl_session_cache_t));
|
|
|
1518 if (cache == NULL) {
|
|
|
1519 return NGX_ERROR;
|
|
|
1520 }
|
|
|
1521
|
|
480
|
1522 shpool->data = cache;
|
|
|
1523 shm_zone->data = cache;
|
|
|
1524
|
|
358
|
1525 ngx_rbtree_init(&cache->session_rbtree, &cache->sentinel,
|
|
356
|
1526 ngx_ssl_session_rbtree_insert_value);
|
|
272
|
1527
|
|
358
|
1528 ngx_queue_init(&cache->expire_queue);
|
|
|
1529
|
|
480
|
1530 len = sizeof(" in SSL session shared cache \"\"") + shm_zone->shm.name.len;
|
|
468
|
1531
|
|
|
1532 shpool->log_ctx = ngx_slab_alloc(shpool, len);
|
|
|
1533 if (shpool->log_ctx == NULL) {
|
|
|
1534 return NGX_ERROR;
|
|
|
1535 }
|
|
|
1536
|
|
|
1537 ngx_sprintf(shpool->log_ctx, " in SSL session shared cache \"%V\"%Z",
|
|
480
|
1538 &shm_zone->shm.name);
|
|
272
|
1539
|
|
|
1540 return NGX_OK;
|
|
|
1541 }
|
|
|
1542
|
|
|
1543
|
|
|
1544 /*
|
|
274
|
1545 * The length of the session id is 16 bytes for SSLv2 sessions and
|
|
|
1546 * between 1 and 32 bytes for SSLv3/TLSv1, typically 32 bytes.
|
|
|
1547 * It seems that the typical length of the external ASN1 representation
|
|
|
1548 * of a session is 118 or 119 bytes for SSLv3/TSLv1.
|
|
|
1549 *
|
|
|
1550 * Thus on 32-bit platforms we allocate separately an rbtree node,
|
|
|
1551 * a session id, and an ASN1 representation, they take accordingly
|
|
|
1552 * 64, 32, and 128 bytes.
|
|
|
1553 *
|
|
|
1554 * On 64-bit platforms we allocate separately an rbtree node + session_id,
|
|
|
1555 * and an ASN1 representation, they take accordingly 128 and 128 bytes.
|
|
|
1556 *
|
|
272
|
1557 * OpenSSL's i2d_SSL_SESSION() and d2i_SSL_SESSION are slow,
|
|
|
1558 * so they are outside the code locked by shared pool mutex
|
|
|
1559 */
|
|
|
1560
|
|
|
1561 static int
|
|
|
1562 ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
|
|
|
1563 {
|
|
|
1564 int len;
|
|
274
|
1565 u_char *p, *id, *cached_sess;
|
|
272
|
1566 uint32_t hash;
|
|
|
1567 SSL_CTX *ssl_ctx;
|
|
|
1568 ngx_shm_zone_t *shm_zone;
|
|
|
1569 ngx_connection_t *c;
|
|
|
1570 ngx_slab_pool_t *shpool;
|
|
|
1571 ngx_ssl_sess_id_t *sess_id;
|
|
|
1572 ngx_ssl_session_cache_t *cache;
|
|
|
1573 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1574
|
|
|
1575 len = i2d_SSL_SESSION(sess, NULL);
|
|
|
1576
|
|
|
1577 /* do not cache too big session */
|
|
|
1578
|
|
|
1579 if (len > (int) NGX_SSL_MAX_SESSION_SIZE) {
|
|
|
1580 return 0;
|
|
|
1581 }
|
|
|
1582
|
|
|
1583 p = buf;
|
|
|
1584 i2d_SSL_SESSION(sess, &p);
|
|
|
1585
|
|
|
1586 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1587
|
|
|
1588 ssl_ctx = SSL_get_SSL_CTX(ssl_conn);
|
|
|
1589 shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
|
|
|
1590
|
|
|
1591 cache = shm_zone->data;
|
|
|
1592 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1593
|
|
|
1594 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1595
|
|
|
1596 /* drop one or two expired sessions */
|
|
|
1597 ngx_ssl_expire_sessions(cache, shpool, 1);
|
|
|
1598
|
|
274
|
1599 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1600
|
|
|
1601 if (cached_sess == NULL) {
|
|
|
1602
|
|
|
1603 /* drop the oldest non-expired session and try once more */
|
|
|
1604
|
|
|
1605 ngx_ssl_expire_sessions(cache, shpool, 0);
|
|
|
1606
|
|
274
|
1607 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1608
|
|
|
1609 if (cached_sess == NULL) {
|
|
274
|
1610 sess_id = NULL;
|
|
272
|
1611 goto failed;
|
|
|
1612 }
|
|
|
1613 }
|
|
|
1614
|
|
|
1615 sess_id = ngx_slab_alloc_locked(shpool, sizeof(ngx_ssl_sess_id_t));
|
|
|
1616 if (sess_id == NULL) {
|
|
|
1617 goto failed;
|
|
|
1618 }
|
|
|
1619
|
|
274
|
1620 #if (NGX_PTR_SIZE == 8)
|
|
|
1621
|
|
|
1622 id = sess_id->sess_id;
|
|
|
1623
|
|
|
1624 #else
|
|
|
1625
|
|
|
1626 id = ngx_slab_alloc_locked(shpool, sess->session_id_length);
|
|
|
1627 if (id == NULL) {
|
|
|
1628 goto failed;
|
|
|
1629 }
|
|
|
1630
|
|
|
1631 #endif
|
|
|
1632
|
|
|
1633 ngx_memcpy(cached_sess, buf, len);
|
|
272
|
1634
|
|
|
1635 ngx_memcpy(id, sess->session_id, sess->session_id_length);
|
|
|
1636
|
|
|
1637 hash = ngx_crc32_short(sess->session_id, sess->session_id_length);
|
|
|
1638
|
|
|
1639 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
530
|
1640 "ssl new session: %08XD:%d:%d",
|
|
272
|
1641 hash, sess->session_id_length, len);
|
|
|
1642
|
|
|
1643 sess_id->node.key = hash;
|
|
|
1644 sess_id->node.data = (u_char) sess->session_id_length;
|
|
|
1645 sess_id->id = id;
|
|
|
1646 sess_id->len = len;
|
|
|
1647 sess_id->session = cached_sess;
|
|
|
1648
|
|
358
|
1649 sess_id->expire = ngx_time() + SSL_CTX_get_timeout(ssl_ctx);
|
|
|
1650
|
|
|
1651 ngx_queue_insert_head(&cache->expire_queue, &sess_id->queue);
|
|
|
1652
|
|
|
1653 ngx_rbtree_insert(&cache->session_rbtree, &sess_id->node);
|
|
272
|
1654
|
|
|
1655 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1656
|
|
|
1657 return 0;
|
|
|
1658
|
|
|
1659 failed:
|
|
|
1660
|
|
|
1661 if (cached_sess) {
|
|
|
1662 ngx_slab_free_locked(shpool, cached_sess);
|
|
|
1663 }
|
|
|
1664
|
|
274
|
1665 if (sess_id) {
|
|
|
1666 ngx_slab_free_locked(shpool, sess_id);
|
|
272
|
1667 }
|
|
|
1668
|
|
|
1669 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1670
|
|
|
1671 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1672 "could not add new SSL session to the session cache");
|
|
|
1673
|
|
|
1674 return 0;
|
|
|
1675 }
|
|
|
1676
|
|
|
1677
|
|
|
1678 static ngx_ssl_session_t *
|
|
|
1679 ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn, u_char *id, int len,
|
|
|
1680 int *copy)
|
|
|
1681 {
|
|
|
1682 #if OPENSSL_VERSION_NUMBER >= 0x0090707fL
|
|
|
1683 const
|
|
|
1684 #endif
|
|
|
1685 u_char *p;
|
|
|
1686 uint32_t hash;
|
|
274
|
1687 ngx_int_t rc;
|
|
272
|
1688 ngx_shm_zone_t *shm_zone;
|
|
|
1689 ngx_slab_pool_t *shpool;
|
|
|
1690 ngx_connection_t *c;
|
|
|
1691 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1692 ngx_ssl_session_t *sess;
|
|
|
1693 ngx_ssl_sess_id_t *sess_id;
|
|
|
1694 ngx_ssl_session_cache_t *cache;
|
|
|
1695 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1696
|
|
|
1697 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1698
|
|
274
|
1699 hash = ngx_crc32_short(id, (size_t) len);
|
|
272
|
1700 *copy = 0;
|
|
|
1701
|
|
|
1702 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
530
|
1703 "ssl get session: %08XD:%d", hash, len);
|
|
272
|
1704
|
|
|
1705 shm_zone = SSL_CTX_get_ex_data(SSL_get_SSL_CTX(ssl_conn),
|
|
|
1706 ngx_ssl_session_cache_index);
|
|
|
1707
|
|
|
1708 cache = shm_zone->data;
|
|
|
1709
|
|
|
1710 sess = NULL;
|
|
|
1711
|
|
|
1712 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1713
|
|
|
1714 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1715
|
|
358
|
1716 node = cache->session_rbtree.root;
|
|
|
1717 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1718
|
|
|
1719 while (node != sentinel) {
|
|
|
1720
|
|
|
1721 if (hash < node->key) {
|
|
|
1722 node = node->left;
|
|
|
1723 continue;
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 if (hash > node->key) {
|
|
|
1727 node = node->right;
|
|
|
1728 continue;
|
|
|
1729 }
|
|
|
1730
|
|
274
|
1731 /* hash == node->key */
|
|
|
1732
|
|
|
1733 do {
|
|
272
|
1734 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1735
|
|
274
|
1736 rc = ngx_memn2cmp(id, sess_id->id,
|
|
|
1737 (size_t) len, (size_t) node->data);
|
|
|
1738 if (rc == 0) {
|
|
272
|
1739
|
|
358
|
1740 if (sess_id->expire > ngx_time()) {
|
|
274
|
1741 ngx_memcpy(buf, sess_id->session, sess_id->len);
|
|
272
|
1742
|
|
|
1743 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1744
|
|
|
1745 p = buf;
|
|
|
1746 sess = d2i_SSL_SESSION(NULL, &p, sess_id->len);
|
|
|
1747
|
|
|
1748 return sess;
|
|
|
1749 }
|
|
|
1750
|
|
358
|
1751 ngx_queue_remove(&sess_id->queue);
|
|
|
1752
|
|
|
1753 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1754
|
|
274
|
1755 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1756 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1757 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1758 #endif
|
|
272
|
1759 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1760
|
|
|
1761 sess = NULL;
|
|
|
1762
|
|
274
|
1763 goto done;
|
|
272
|
1764 }
|
|
274
|
1765
|
|
|
1766 node = (rc < 0) ? node->left : node->right;
|
|
|
1767
|
|
|
1768 } while (node != sentinel && hash == node->key);
|
|
|
1769
|
|
|
1770 break;
|
|
272
|
1771 }
|
|
|
1772
|
|
274
|
1773 done:
|
|
|
1774
|
|
272
|
1775 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1776
|
|
|
1777 return sess;
|
|
|
1778 }
|
|
|
1779
|
|
|
1780
|
|
366
|
1781 void
|
|
|
1782 ngx_ssl_remove_cached_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1783 {
|
|
|
1784 SSL_CTX_remove_session(ssl, sess);
|
|
|
1785
|
|
|
1786 ngx_ssl_remove_session(ssl, sess);
|
|
|
1787 }
|
|
|
1788
|
|
|
1789
|
|
272
|
1790 static void
|
|
|
1791 ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1792 {
|
|
274
|
1793 size_t len;
|
|
|
1794 u_char *id;
|
|
272
|
1795 uint32_t hash;
|
|
274
|
1796 ngx_int_t rc;
|
|
272
|
1797 ngx_shm_zone_t *shm_zone;
|
|
|
1798 ngx_slab_pool_t *shpool;
|
|
|
1799 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1800 ngx_ssl_sess_id_t *sess_id;
|
|
|
1801 ngx_ssl_session_cache_t *cache;
|
|
|
1802
|
|
|
1803 shm_zone = SSL_CTX_get_ex_data(ssl, ngx_ssl_session_cache_index);
|
|
|
1804
|
|
366
|
1805 if (shm_zone == NULL) {
|
|
|
1806 return;
|
|
|
1807 }
|
|
|
1808
|
|
272
|
1809 cache = shm_zone->data;
|
|
|
1810
|
|
|
1811 id = sess->session_id;
|
|
274
|
1812 len = (size_t) sess->session_id_length;
|
|
|
1813
|
|
|
1814 hash = ngx_crc32_short(id, len);
|
|
272
|
1815
|
|
|
1816 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
530
|
1817 "ssl remove session: %08XD:%uz", hash, len);
|
|
272
|
1818
|
|
|
1819 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1820
|
|
|
1821 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1822
|
|
358
|
1823 node = cache->session_rbtree.root;
|
|
|
1824 sentinel = cache->session_rbtree.sentinel;
|
|
272
|
1825
|
|
|
1826 while (node != sentinel) {
|
|
|
1827
|
|
|
1828 if (hash < node->key) {
|
|
|
1829 node = node->left;
|
|
|
1830 continue;
|
|
|
1831 }
|
|
|
1832
|
|
|
1833 if (hash > node->key) {
|
|
|
1834 node = node->right;
|
|
|
1835 continue;
|
|
|
1836 }
|
|
|
1837
|
|
274
|
1838 /* hash == node->key */
|
|
|
1839
|
|
|
1840 do {
|
|
272
|
1841 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1842
|
|
274
|
1843 rc = ngx_memn2cmp(id, sess_id->id, len, (size_t) node->data);
|
|
|
1844
|
|
|
1845 if (rc == 0) {
|
|
358
|
1846
|
|
|
1847 ngx_queue_remove(&sess_id->queue);
|
|
|
1848
|
|
|
1849 ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
272
|
1850
|
|
274
|
1851 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1852 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1853 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1854 #endif
|
|
272
|
1855 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1856
|
|
274
|
1857 goto done;
|
|
272
|
1858 }
|
|
274
|
1859
|
|
|
1860 node = (rc < 0) ? node->left : node->right;
|
|
|
1861
|
|
|
1862 } while (node != sentinel && hash == node->key);
|
|
|
1863
|
|
|
1864 break;
|
|
272
|
1865 }
|
|
|
1866
|
|
274
|
1867 done:
|
|
|
1868
|
|
272
|
1869 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1870 }
|
|
|
1871
|
|
|
1872
|
|
|
1873 static void
|
|
|
1874 ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
|
|
|
1875 ngx_slab_pool_t *shpool, ngx_uint_t n)
|
|
|
1876 {
|
|
358
|
1877 time_t now;
|
|
|
1878 ngx_queue_t *q;
|
|
274
|
1879 ngx_ssl_sess_id_t *sess_id;
|
|
272
|
1880
|
|
358
|
1881 now = ngx_time();
|
|
272
|
1882
|
|
|
1883 while (n < 3) {
|
|
|
1884
|
|
358
|
1885 if (ngx_queue_empty(&cache->expire_queue)) {
|
|
272
|
1886 return;
|
|
|
1887 }
|
|
|
1888
|
|
358
|
1889 q = ngx_queue_last(&cache->expire_queue);
|
|
|
1890
|
|
|
1891 sess_id = ngx_queue_data(q, ngx_ssl_sess_id_t, queue);
|
|
|
1892
|
|
|
1893 if (n++ != 0 && sess_id->expire > now) {
|
|
332
|
1894 return;
|
|
272
|
1895 }
|
|
|
1896
|
|
358
|
1897 ngx_queue_remove(q);
|
|
272
|
1898
|
|
|
1899 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
|
1900 "expire session: %08Xi", sess_id->node.key);
|
|
|
1901
|
|
358
|
1902 ngx_rbtree_delete(&cache->session_rbtree, &sess_id->node);
|
|
|
1903
|
|
274
|
1904 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1905 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1906 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1907 #endif
|
|
272
|
1908 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1909 }
|
|
|
1910 }
|
|
|
1911
|
|
|
1912
|
|
274
|
1913 static void
|
|
|
1914 ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
1915 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
1916 {
|
|
356
|
1917 ngx_rbtree_node_t **p;
|
|
|
1918 ngx_ssl_sess_id_t *sess_id, *sess_id_temp;
|
|
274
|
1919
|
|
|
1920 for ( ;; ) {
|
|
|
1921
|
|
|
1922 if (node->key < temp->key) {
|
|
|
1923
|
|
356
|
1924 p = &temp->left;
|
|
274
|
1925
|
|
|
1926 } else if (node->key > temp->key) {
|
|
|
1927
|
|
356
|
1928 p = &temp->right;
|
|
274
|
1929
|
|
|
1930 } else { /* node->key == temp->key */
|
|
|
1931
|
|
|
1932 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1933 sess_id_temp = (ngx_ssl_sess_id_t *) temp;
|
|
|
1934
|
|
356
|
1935 p = (ngx_memn2cmp(sess_id->id, sess_id_temp->id,
|
|
|
1936 (size_t) node->data, (size_t) temp->data)
|
|
|
1937 < 0) ? &temp->left : &temp->right;
|
|
274
|
1938 }
|
|
356
|
1939
|
|
|
1940 if (*p == sentinel) {
|
|
|
1941 break;
|
|
|
1942 }
|
|
|
1943
|
|
|
1944 temp = *p;
|
|
274
|
1945 }
|
|
|
1946
|
|
356
|
1947 *p = node;
|
|
274
|
1948 node->parent = temp;
|
|
|
1949 node->left = sentinel;
|
|
|
1950 node->right = sentinel;
|
|
|
1951 ngx_rbt_red(node);
|
|
276
|
1952 }
|
|
274
|
1953
|
|
|
1954
|
|
58
|
1955 void
|
|
|
1956 ngx_ssl_cleanup_ctx(void *data)
|
|
|
1957 {
|
|
138
|
1958 ngx_ssl_t *ssl = data;
|
|
58
|
1959
|
|
138
|
1960 SSL_CTX_free(ssl->ctx);
|
|
58
|
1961 }
|
|
90
|
1962
|
|
|
1963
|
|
220
|
1964 ngx_int_t
|
|
|
1965 ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1966 {
|
|
220
|
1967 s->data = (u_char *) SSL_get_version(c->ssl->connection);
|
|
|
1968 return NGX_OK;
|
|
160
|
1969 }
|
|
|
1970
|
|
|
1971
|
|
220
|
1972 ngx_int_t
|
|
|
1973 ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1974 {
|
|
220
|
1975 s->data = (u_char *) SSL_get_cipher_name(c->ssl->connection);
|
|
|
1976 return NGX_OK;
|
|
160
|
1977 }
|
|
|
1978
|
|
|
1979
|
|
196
|
1980 ngx_int_t
|
|
530
|
1981 ngx_ssl_get_session_id(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1982 {
|
|
|
1983 int len;
|
|
|
1984 u_char *p, *buf;
|
|
|
1985 SSL_SESSION *sess;
|
|
|
1986
|
|
|
1987 sess = SSL_get0_session(c->ssl->connection);
|
|
|
1988
|
|
|
1989 len = i2d_SSL_SESSION(sess, NULL);
|
|
|
1990
|
|
|
1991 buf = ngx_alloc(len, c->log);
|
|
|
1992 if (buf == NULL) {
|
|
|
1993 return NGX_ERROR;
|
|
|
1994 }
|
|
|
1995
|
|
|
1996 s->len = 2 * len;
|
|
|
1997 s->data = ngx_pnalloc(pool, 2 * len);
|
|
|
1998 if (s->data == NULL) {
|
|
|
1999 ngx_free(buf);
|
|
|
2000 return NGX_ERROR;
|
|
|
2001 }
|
|
|
2002
|
|
|
2003 p = buf;
|
|
|
2004 i2d_SSL_SESSION(sess, &p);
|
|
|
2005
|
|
|
2006 ngx_hex_dump(s->data, buf, len);
|
|
|
2007
|
|
|
2008 ngx_free(buf);
|
|
|
2009
|
|
|
2010 return NGX_OK;
|
|
|
2011 }
|
|
|
2012
|
|
|
2013
|
|
|
2014 ngx_int_t
|
|
390
|
2015 ngx_ssl_get_raw_certificate(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
380
|
2016 {
|
|
|
2017 size_t len;
|
|
|
2018 BIO *bio;
|
|
|
2019 X509 *cert;
|
|
|
2020
|
|
|
2021 s->len = 0;
|
|
|
2022
|
|
|
2023 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2024 if (cert == NULL) {
|
|
|
2025 return NGX_OK;
|
|
|
2026 }
|
|
|
2027
|
|
|
2028 bio = BIO_new(BIO_s_mem());
|
|
|
2029 if (bio == NULL) {
|
|
|
2030 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
|
|
|
2031 X509_free(cert);
|
|
|
2032 return NGX_ERROR;
|
|
|
2033 }
|
|
|
2034
|
|
|
2035 if (PEM_write_bio_X509(bio, cert) == 0) {
|
|
|
2036 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "PEM_write_bio_X509() failed");
|
|
|
2037 goto failed;
|
|
|
2038 }
|
|
|
2039
|
|
|
2040 len = BIO_pending(bio);
|
|
|
2041 s->len = len;
|
|
|
2042
|
|
382
|
2043 s->data = ngx_pnalloc(pool, len);
|
|
380
|
2044 if (s->data == NULL) {
|
|
|
2045 goto failed;
|
|
|
2046 }
|
|
|
2047
|
|
|
2048 BIO_read(bio, s->data, len);
|
|
|
2049
|
|
|
2050 BIO_free(bio);
|
|
|
2051 X509_free(cert);
|
|
|
2052
|
|
|
2053 return NGX_OK;
|
|
|
2054
|
|
|
2055 failed:
|
|
|
2056
|
|
|
2057 BIO_free(bio);
|
|
|
2058 X509_free(cert);
|
|
|
2059
|
|
|
2060 return NGX_ERROR;
|
|
|
2061 }
|
|
|
2062
|
|
|
2063
|
|
|
2064 ngx_int_t
|
|
390
|
2065 ngx_ssl_get_certificate(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2066 {
|
|
|
2067 u_char *p;
|
|
|
2068 size_t len;
|
|
|
2069 ngx_uint_t i;
|
|
|
2070 ngx_str_t cert;
|
|
|
2071
|
|
|
2072 if (ngx_ssl_get_raw_certificate(c, pool, &cert) != NGX_OK) {
|
|
|
2073 return NGX_ERROR;
|
|
|
2074 }
|
|
|
2075
|
|
|
2076 if (cert.len == 0) {
|
|
|
2077 s->len = 0;
|
|
|
2078 return NGX_OK;
|
|
|
2079 }
|
|
|
2080
|
|
|
2081 len = cert.len - 1;
|
|
|
2082
|
|
|
2083 for (i = 0; i < cert.len - 1; i++) {
|
|
|
2084 if (cert.data[i] == LF) {
|
|
|
2085 len++;
|
|
|
2086 }
|
|
|
2087 }
|
|
|
2088
|
|
|
2089 s->len = len;
|
|
|
2090 s->data = ngx_pnalloc(pool, len);
|
|
|
2091 if (s->data == NULL) {
|
|
|
2092 return NGX_ERROR;
|
|
|
2093 }
|
|
|
2094
|
|
|
2095 p = s->data;
|
|
|
2096
|
|
510
|
2097 for (i = 0; i < cert.len - 1; i++) {
|
|
390
|
2098 *p++ = cert.data[i];
|
|
|
2099 if (cert.data[i] == LF) {
|
|
|
2100 *p++ = '\t';
|
|
|
2101 }
|
|
|
2102 }
|
|
|
2103
|
|
|
2104 return NGX_OK;
|
|
|
2105 }
|
|
|
2106
|
|
|
2107
|
|
|
2108 ngx_int_t
|
|
196
|
2109 ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2110 {
|
|
|
2111 char *p;
|
|
|
2112 size_t len;
|
|
|
2113 X509 *cert;
|
|
|
2114 X509_NAME *name;
|
|
|
2115
|
|
|
2116 s->len = 0;
|
|
|
2117
|
|
|
2118 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2119 if (cert == NULL) {
|
|
|
2120 return NGX_OK;
|
|
|
2121 }
|
|
|
2122
|
|
|
2123 name = X509_get_subject_name(cert);
|
|
|
2124 if (name == NULL) {
|
|
372
|
2125 X509_free(cert);
|
|
196
|
2126 return NGX_ERROR;
|
|
|
2127 }
|
|
|
2128
|
|
|
2129 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
2130
|
|
|
2131 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
2132
|
|
|
2133 s->len = len;
|
|
382
|
2134 s->data = ngx_pnalloc(pool, len);
|
|
196
|
2135 if (s->data == NULL) {
|
|
|
2136 OPENSSL_free(p);
|
|
372
|
2137 X509_free(cert);
|
|
196
|
2138 return NGX_ERROR;
|
|
|
2139 }
|
|
|
2140
|
|
|
2141 ngx_memcpy(s->data, p, len);
|
|
|
2142
|
|
|
2143 OPENSSL_free(p);
|
|
372
|
2144 X509_free(cert);
|
|
196
|
2145
|
|
|
2146 return NGX_OK;
|
|
|
2147 }
|
|
|
2148
|
|
|
2149
|
|
|
2150 ngx_int_t
|
|
|
2151 ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2152 {
|
|
|
2153 char *p;
|
|
|
2154 size_t len;
|
|
|
2155 X509 *cert;
|
|
|
2156 X509_NAME *name;
|
|
|
2157
|
|
|
2158 s->len = 0;
|
|
|
2159
|
|
|
2160 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2161 if (cert == NULL) {
|
|
|
2162 return NGX_OK;
|
|
|
2163 }
|
|
|
2164
|
|
|
2165 name = X509_get_issuer_name(cert);
|
|
|
2166 if (name == NULL) {
|
|
372
|
2167 X509_free(cert);
|
|
196
|
2168 return NGX_ERROR;
|
|
|
2169 }
|
|
|
2170
|
|
|
2171 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
2172
|
|
|
2173 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
2174
|
|
|
2175 s->len = len;
|
|
382
|
2176 s->data = ngx_pnalloc(pool, len);
|
|
196
|
2177 if (s->data == NULL) {
|
|
|
2178 OPENSSL_free(p);
|
|
372
|
2179 X509_free(cert);
|
|
196
|
2180 return NGX_ERROR;
|
|
|
2181 }
|
|
|
2182
|
|
|
2183 ngx_memcpy(s->data, p, len);
|
|
|
2184
|
|
|
2185 OPENSSL_free(p);
|
|
372
|
2186 X509_free(cert);
|
|
196
|
2187
|
|
|
2188 return NGX_OK;
|
|
|
2189 }
|
|
|
2190
|
|
|
2191
|
|
220
|
2192 ngx_int_t
|
|
|
2193 ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2194 {
|
|
|
2195 size_t len;
|
|
|
2196 X509 *cert;
|
|
|
2197 BIO *bio;
|
|
|
2198
|
|
|
2199 s->len = 0;
|
|
|
2200
|
|
|
2201 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2202 if (cert == NULL) {
|
|
|
2203 return NGX_OK;
|
|
|
2204 }
|
|
|
2205
|
|
|
2206 bio = BIO_new(BIO_s_mem());
|
|
|
2207 if (bio == NULL) {
|
|
372
|
2208 X509_free(cert);
|
|
220
|
2209 return NGX_ERROR;
|
|
|
2210 }
|
|
|
2211
|
|
|
2212 i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
|
|
|
2213 len = BIO_pending(bio);
|
|
|
2214
|
|
|
2215 s->len = len;
|
|
382
|
2216 s->data = ngx_pnalloc(pool, len);
|
|
220
|
2217 if (s->data == NULL) {
|
|
|
2218 BIO_free(bio);
|
|
372
|
2219 X509_free(cert);
|
|
220
|
2220 return NGX_ERROR;
|
|
|
2221 }
|
|
|
2222
|
|
|
2223 BIO_read(bio, s->data, len);
|
|
|
2224 BIO_free(bio);
|
|
372
|
2225 X509_free(cert);
|
|
220
|
2226
|
|
|
2227 return NGX_OK;
|
|
|
2228 }
|
|
|
2229
|
|
|
2230
|
|
510
|
2231 ngx_int_t
|
|
|
2232 ngx_ssl_get_client_verify(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
2233 {
|
|
|
2234 X509 *cert;
|
|
|
2235
|
|
|
2236 if (SSL_get_verify_result(c->ssl->connection) != X509_V_OK) {
|
|
570
|
2237 ngx_str_set(s, "FAILED");
|
|
510
|
2238 return NGX_OK;
|
|
|
2239 }
|
|
|
2240
|
|
|
2241 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
2242
|
|
|
2243 if (cert) {
|
|
570
|
2244 ngx_str_set(s, "SUCCESS");
|
|
510
|
2245
|
|
|
2246 } else {
|
|
570
|
2247 ngx_str_set(s, "NONE");
|
|
510
|
2248 }
|
|
|
2249
|
|
|
2250 X509_free(cert);
|
|
|
2251
|
|
|
2252 return NGX_OK;
|
|
|
2253 }
|
|
|
2254
|
|
|
2255
|
|
90
|
2256 static void *
|
|
|
2257 ngx_openssl_create_conf(ngx_cycle_t *cycle)
|
|
|
2258 {
|
|
|
2259 ngx_openssl_conf_t *oscf;
|
|
126
|
2260
|
|
90
|
2261 oscf = ngx_pcalloc(cycle->pool, sizeof(ngx_openssl_conf_t));
|
|
|
2262 if (oscf == NULL) {
|
|
496
|
2263 return NULL;
|
|
90
|
2264 }
|
|
126
|
2265
|
|
90
|
2266 /*
|
|
|
2267 * set by ngx_pcalloc():
|
|
126
|
2268 *
|
|
446
|
2269 * oscf->engine = 0;
|
|
126
|
2270 */
|
|
90
|
2271
|
|
|
2272 return oscf;
|
|
|
2273 }
|
|
|
2274
|
|
|
2275
|
|
|
2276 static char *
|
|
446
|
2277 ngx_openssl_engine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
90
|
2278 {
|
|
|
2279 ngx_openssl_conf_t *oscf = conf;
|
|
120
|
2280
|
|
446
|
2281 ENGINE *engine;
|
|
|
2282 ngx_str_t *value;
|
|
|
2283
|
|
|
2284 if (oscf->engine) {
|
|
|
2285 return "is duplicate";
|
|
90
|
2286 }
|
|
126
|
2287
|
|
446
|
2288 oscf->engine = 1;
|
|
|
2289
|
|
|
2290 value = cf->args->elts;
|
|
|
2291
|
|
|
2292 engine = ENGINE_by_id((const char *) value[1].data);
|
|
90
|
2293
|
|
|
2294 if (engine == NULL) {
|
|
446
|
2295 ngx_ssl_error(NGX_LOG_WARN, cf->log, 0,
|
|
|
2296 "ENGINE_by_id(\"%V\") failed", &value[1]);
|
|
90
|
2297 return NGX_CONF_ERROR;
|
|
|
2298 }
|
|
|
2299
|
|
|
2300 if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
|
|
446
|
2301 ngx_ssl_error(NGX_LOG_WARN, cf->log, 0,
|
|
90
|
2302 "ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
|
|
446
|
2303 &value[1]);
|
|
|
2304
|
|
|
2305 ENGINE_free(engine);
|
|
|
2306
|
|
90
|
2307 return NGX_CONF_ERROR;
|
|
|
2308 }
|
|
|
2309
|
|
|
2310 ENGINE_free(engine);
|
|
|
2311
|
|
|
2312 return NGX_CONF_OK;
|
|
446
|
2313 }
|
|
120
|
2314
|
|
|
2315
|
|
|
2316 static void
|
|
|
2317 ngx_openssl_exit(ngx_cycle_t *cycle)
|
|
|
2318 {
|
|
564
|
2319 EVP_cleanup();
|
|
120
|
2320 ENGINE_cleanup();
|
|
|
2321 }
|
