6028 lines
146 KiB
C
6028 lines
146 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) Nginx, Inc.
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_event.h>
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#define NGX_SSL_PASSWORD_BUFFER_SIZE 4096
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typedef struct {
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ngx_uint_t engine; /* unsigned engine:1; */
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} ngx_openssl_conf_t;
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static X509 *ngx_ssl_load_certificate(ngx_pool_t *pool, char **err,
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ngx_str_t *cert, STACK_OF(X509) **chain);
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static EVP_PKEY *ngx_ssl_load_certificate_key(ngx_pool_t *pool, char **err,
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ngx_str_t *key, ngx_array_t *passwords);
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static int ngx_ssl_password_callback(char *buf, int size, int rwflag,
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void *userdata);
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static int ngx_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store);
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static void ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where,
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int ret);
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static void ngx_ssl_passwords_cleanup(void *data);
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static int ngx_ssl_new_client_session(ngx_ssl_conn_t *ssl_conn,
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ngx_ssl_session_t *sess);
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#ifdef SSL_READ_EARLY_DATA_SUCCESS
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static ngx_int_t ngx_ssl_try_early_data(ngx_connection_t *c);
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#endif
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static void ngx_ssl_handshake_handler(ngx_event_t *ev);
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#ifdef SSL_READ_EARLY_DATA_SUCCESS
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static ssize_t ngx_ssl_recv_early(ngx_connection_t *c, u_char *buf,
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size_t size);
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#endif
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static ngx_int_t ngx_ssl_handle_recv(ngx_connection_t *c, int n);
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static void ngx_ssl_write_handler(ngx_event_t *wev);
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#ifdef SSL_READ_EARLY_DATA_SUCCESS
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static ssize_t ngx_ssl_write_early(ngx_connection_t *c, u_char *data,
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size_t size);
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#endif
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static ssize_t ngx_ssl_sendfile(ngx_connection_t *c, ngx_buf_t *file,
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size_t size);
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static void ngx_ssl_read_handler(ngx_event_t *rev);
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static void ngx_ssl_shutdown_handler(ngx_event_t *ev);
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static void ngx_ssl_connection_error(ngx_connection_t *c, int sslerr,
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ngx_err_t err, char *text);
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static void ngx_ssl_clear_error(ngx_log_t *log);
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static ngx_int_t ngx_ssl_session_id_context(ngx_ssl_t *ssl,
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ngx_str_t *sess_ctx, ngx_array_t *certificates);
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static int ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn,
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ngx_ssl_session_t *sess);
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static ngx_ssl_session_t *ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn,
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#if OPENSSL_VERSION_NUMBER >= 0x10100003L
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const
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#endif
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u_char *id, int len, int *copy);
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static void ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess);
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static void ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
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ngx_slab_pool_t *shpool, ngx_uint_t n);
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static void ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
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ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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#ifdef SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB
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static int ngx_ssl_ticket_key_callback(ngx_ssl_conn_t *ssl_conn,
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unsigned char *name, unsigned char *iv, EVP_CIPHER_CTX *ectx,
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HMAC_CTX *hctx, int enc);
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static ngx_int_t ngx_ssl_rotate_ticket_keys(SSL_CTX *ssl_ctx, ngx_log_t *log);
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static void ngx_ssl_ticket_keys_cleanup(void *data);
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#endif
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#ifndef X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT
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static ngx_int_t ngx_ssl_check_name(ngx_str_t *name, ASN1_STRING *str);
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#endif
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static time_t ngx_ssl_parse_time(
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#if OPENSSL_VERSION_NUMBER > 0x10100000L
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const
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#endif
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ASN1_TIME *asn1time, ngx_log_t *log);
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static void *ngx_openssl_create_conf(ngx_cycle_t *cycle);
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static char *ngx_openssl_engine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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static void ngx_openssl_exit(ngx_cycle_t *cycle);
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static ngx_command_t ngx_openssl_commands[] = {
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{ ngx_string("ssl_engine"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_openssl_engine,
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0,
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0,
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NULL },
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ngx_null_command
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};
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static ngx_core_module_t ngx_openssl_module_ctx = {
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ngx_string("openssl"),
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ngx_openssl_create_conf,
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NULL
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};
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ngx_module_t ngx_openssl_module = {
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NGX_MODULE_V1,
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&ngx_openssl_module_ctx, /* module context */
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ngx_openssl_commands, /* module directives */
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NGX_CORE_MODULE, /* module type */
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NULL, /* init master */
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NULL, /* init module */
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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ngx_openssl_exit, /* exit master */
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NGX_MODULE_V1_PADDING
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};
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int ngx_ssl_connection_index;
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int ngx_ssl_server_conf_index;
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int ngx_ssl_session_cache_index;
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int ngx_ssl_ticket_keys_index;
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int ngx_ssl_ocsp_index;
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int ngx_ssl_certificate_index;
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int ngx_ssl_next_certificate_index;
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int ngx_ssl_certificate_name_index;
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int ngx_ssl_stapling_index;
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ngx_int_t
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ngx_ssl_init(ngx_log_t *log)
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{
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#if OPENSSL_VERSION_NUMBER >= 0x10100003L
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if (OPENSSL_init_ssl(OPENSSL_INIT_LOAD_CONFIG, NULL) == 0) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0, "OPENSSL_init_ssl() failed");
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return NGX_ERROR;
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}
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/*
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* OPENSSL_init_ssl() may leave errors in the error queue
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* while returning success
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*/
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ERR_clear_error();
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#else
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OPENSSL_config(NULL);
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SSL_library_init();
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SSL_load_error_strings();
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OpenSSL_add_all_algorithms();
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#endif
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#ifndef SSL_OP_NO_COMPRESSION
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{
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/*
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* Disable gzip compression in OpenSSL prior to 1.0.0 version,
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* this saves about 522K per connection.
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*/
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int n;
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STACK_OF(SSL_COMP) *ssl_comp_methods;
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ssl_comp_methods = SSL_COMP_get_compression_methods();
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n = sk_SSL_COMP_num(ssl_comp_methods);
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while (n--) {
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(void) sk_SSL_COMP_pop(ssl_comp_methods);
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}
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}
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#endif
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ngx_ssl_connection_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
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if (ngx_ssl_connection_index == -1) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0, "SSL_get_ex_new_index() failed");
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return NGX_ERROR;
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}
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ngx_ssl_server_conf_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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NULL);
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if (ngx_ssl_server_conf_index == -1) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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"SSL_CTX_get_ex_new_index() failed");
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return NGX_ERROR;
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}
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ngx_ssl_session_cache_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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NULL);
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if (ngx_ssl_session_cache_index == -1) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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"SSL_CTX_get_ex_new_index() failed");
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return NGX_ERROR;
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}
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ngx_ssl_ticket_keys_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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NULL);
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if (ngx_ssl_ticket_keys_index == -1) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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"SSL_CTX_get_ex_new_index() failed");
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return NGX_ERROR;
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}
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ngx_ssl_ocsp_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL);
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if (ngx_ssl_ocsp_index == -1) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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"SSL_CTX_get_ex_new_index() failed");
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return NGX_ERROR;
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}
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ngx_ssl_certificate_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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NULL);
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if (ngx_ssl_certificate_index == -1) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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"SSL_CTX_get_ex_new_index() failed");
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return NGX_ERROR;
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}
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ngx_ssl_next_certificate_index = X509_get_ex_new_index(0, NULL, NULL, NULL,
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NULL);
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if (ngx_ssl_next_certificate_index == -1) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0, "X509_get_ex_new_index() failed");
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return NGX_ERROR;
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}
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ngx_ssl_certificate_name_index = X509_get_ex_new_index(0, NULL, NULL, NULL,
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NULL);
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if (ngx_ssl_certificate_name_index == -1) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0, "X509_get_ex_new_index() failed");
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return NGX_ERROR;
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}
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ngx_ssl_stapling_index = X509_get_ex_new_index(0, NULL, NULL, NULL, NULL);
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if (ngx_ssl_stapling_index == -1) {
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ngx_ssl_error(NGX_LOG_ALERT, log, 0, "X509_get_ex_new_index() failed");
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return NGX_ERROR;
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}
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return NGX_OK;
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}
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ngx_int_t
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ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
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{
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ssl->ctx = SSL_CTX_new(SSLv23_method());
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if (ssl->ctx == NULL) {
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ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "SSL_CTX_new() failed");
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return NGX_ERROR;
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}
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if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_server_conf_index, data) == 0) {
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ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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"SSL_CTX_set_ex_data() failed");
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return NGX_ERROR;
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}
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if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_certificate_index, NULL) == 0) {
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ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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"SSL_CTX_set_ex_data() failed");
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return NGX_ERROR;
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}
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ssl->buffer_size = NGX_SSL_BUFSIZE;
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/* client side options */
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#ifdef SSL_OP_MICROSOFT_SESS_ID_BUG
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SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_SESS_ID_BUG);
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#endif
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#ifdef SSL_OP_NETSCAPE_CHALLENGE_BUG
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_CHALLENGE_BUG);
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#endif
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/* server side options */
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#ifdef SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG
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SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
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#endif
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#ifdef SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER
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SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
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#endif
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#ifdef SSL_OP_SSLEAY_080_CLIENT_DH_BUG
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SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
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#endif
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#ifdef SSL_OP_TLS_D5_BUG
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SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);
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#endif
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#ifdef SSL_OP_TLS_BLOCK_PADDING_BUG
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SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_BLOCK_PADDING_BUG);
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#endif
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#ifdef SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
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SSL_CTX_set_options(ssl->ctx, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
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#endif
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SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_DH_USE);
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#if OPENSSL_VERSION_NUMBER >= 0x009080dfL
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/* only in 0.9.8m+ */
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SSL_CTX_clear_options(ssl->ctx,
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SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1);
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#endif
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if (!(protocols & NGX_SSL_SSLv2)) {
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_SSLv2);
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}
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if (!(protocols & NGX_SSL_SSLv3)) {
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_SSLv3);
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}
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if (!(protocols & NGX_SSL_TLSv1)) {
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1);
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}
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#ifdef SSL_OP_NO_TLSv1_1
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SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_1);
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if (!(protocols & NGX_SSL_TLSv1_1)) {
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_1);
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}
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#endif
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#ifdef SSL_OP_NO_TLSv1_2
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SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_2);
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if (!(protocols & NGX_SSL_TLSv1_2)) {
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_2);
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}
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#endif
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#ifdef SSL_OP_NO_TLSv1_3
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SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_3);
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if (!(protocols & NGX_SSL_TLSv1_3)) {
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_3);
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}
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#endif
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#ifdef SSL_CTX_set_min_proto_version
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SSL_CTX_set_min_proto_version(ssl->ctx, 0);
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SSL_CTX_set_max_proto_version(ssl->ctx, TLS1_2_VERSION);
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#endif
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#ifdef TLS1_3_VERSION
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SSL_CTX_set_min_proto_version(ssl->ctx, 0);
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SSL_CTX_set_max_proto_version(ssl->ctx, TLS1_3_VERSION);
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#endif
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#ifdef SSL_OP_NO_COMPRESSION
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_COMPRESSION);
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#endif
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#ifdef SSL_OP_NO_ANTI_REPLAY
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_ANTI_REPLAY);
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#endif
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#ifdef SSL_OP_NO_CLIENT_RENEGOTIATION
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SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_CLIENT_RENEGOTIATION);
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#endif
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#ifdef SSL_OP_IGNORE_UNEXPECTED_EOF
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SSL_CTX_set_options(ssl->ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
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#endif
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#ifdef SSL_MODE_RELEASE_BUFFERS
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SSL_CTX_set_mode(ssl->ctx, SSL_MODE_RELEASE_BUFFERS);
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#endif
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#ifdef SSL_MODE_NO_AUTO_CHAIN
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SSL_CTX_set_mode(ssl->ctx, SSL_MODE_NO_AUTO_CHAIN);
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#endif
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SSL_CTX_set_read_ahead(ssl->ctx, 1);
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SSL_CTX_set_info_callback(ssl->ctx, ngx_ssl_info_callback);
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return NGX_OK;
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}
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ngx_int_t
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ngx_ssl_certificates(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_array_t *certs,
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ngx_array_t *keys, ngx_array_t *passwords)
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{
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ngx_str_t *cert, *key;
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ngx_uint_t i;
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cert = certs->elts;
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key = keys->elts;
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for (i = 0; i < certs->nelts; i++) {
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if (ngx_ssl_certificate(cf, ssl, &cert[i], &key[i], passwords)
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!= NGX_OK)
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{
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return NGX_ERROR;
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}
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}
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return NGX_OK;
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}
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ngx_int_t
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ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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ngx_str_t *key, ngx_array_t *passwords)
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{
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char *err;
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X509 *x509;
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EVP_PKEY *pkey;
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STACK_OF(X509) *chain;
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x509 = ngx_ssl_load_certificate(cf->pool, &err, cert, &chain);
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if (x509 == NULL) {
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if (err != NULL) {
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ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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"cannot load certificate \"%s\": %s",
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cert->data, err);
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}
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return NGX_ERROR;
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}
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if (SSL_CTX_use_certificate(ssl->ctx, x509) == 0) {
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ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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"SSL_CTX_use_certificate(\"%s\") failed", cert->data);
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X509_free(x509);
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sk_X509_pop_free(chain, X509_free);
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return NGX_ERROR;
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}
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if (X509_set_ex_data(x509, ngx_ssl_certificate_name_index, cert->data)
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== 0)
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{
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ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "X509_set_ex_data() failed");
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X509_free(x509);
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sk_X509_pop_free(chain, X509_free);
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return NGX_ERROR;
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}
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|
|
if (X509_set_ex_data(x509, ngx_ssl_next_certificate_index,
|
|
SSL_CTX_get_ex_data(ssl->ctx, ngx_ssl_certificate_index))
|
|
== 0)
|
|
{
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "X509_set_ex_data() failed");
|
|
X509_free(x509);
|
|
sk_X509_pop_free(chain, X509_free);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_certificate_index, x509) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_set_ex_data() failed");
|
|
X509_free(x509);
|
|
sk_X509_pop_free(chain, X509_free);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
/*
|
|
* Note that x509 is not freed here, but will be instead freed in
|
|
* ngx_ssl_cleanup_ctx(). This is because we need to preserve all
|
|
* certificates to be able to iterate all of them through exdata
|
|
* (ngx_ssl_certificate_index, ngx_ssl_next_certificate_index),
|
|
* while OpenSSL can free a certificate if it is replaced with another
|
|
* certificate of the same type.
|
|
*/
|
|
|
|
#ifdef SSL_CTX_set0_chain
|
|
|
|
if (SSL_CTX_set0_chain(ssl->ctx, chain) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_set0_chain(\"%s\") failed", cert->data);
|
|
sk_X509_pop_free(chain, X509_free);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#else
|
|
{
|
|
int n;
|
|
|
|
/* SSL_CTX_set0_chain() is only available in OpenSSL 1.0.2+ */
|
|
|
|
n = sk_X509_num(chain);
|
|
|
|
while (n--) {
|
|
x509 = sk_X509_shift(chain);
|
|
|
|
if (SSL_CTX_add_extra_chain_cert(ssl->ctx, x509) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_add_extra_chain_cert(\"%s\") failed",
|
|
cert->data);
|
|
sk_X509_pop_free(chain, X509_free);
|
|
return NGX_ERROR;
|
|
}
|
|
}
|
|
|
|
sk_X509_free(chain);
|
|
}
|
|
#endif
|
|
|
|
pkey = ngx_ssl_load_certificate_key(cf->pool, &err, key, passwords);
|
|
if (pkey == NULL) {
|
|
if (err != NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"cannot load certificate key \"%s\": %s",
|
|
key->data, err);
|
|
}
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_CTX_use_PrivateKey(ssl->ctx, pkey) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_use_PrivateKey(\"%s\") failed", key->data);
|
|
EVP_PKEY_free(pkey);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
EVP_PKEY_free(pkey);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_connection_certificate(ngx_connection_t *c, ngx_pool_t *pool,
|
|
ngx_str_t *cert, ngx_str_t *key, ngx_array_t *passwords)
|
|
{
|
|
char *err;
|
|
X509 *x509;
|
|
EVP_PKEY *pkey;
|
|
STACK_OF(X509) *chain;
|
|
|
|
x509 = ngx_ssl_load_certificate(pool, &err, cert, &chain);
|
|
if (x509 == NULL) {
|
|
if (err != NULL) {
|
|
ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
|
|
"cannot load certificate \"%s\": %s",
|
|
cert->data, err);
|
|
}
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_use_certificate(c->ssl->connection, x509) == 0) {
|
|
ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
|
|
"SSL_use_certificate(\"%s\") failed", cert->data);
|
|
X509_free(x509);
|
|
sk_X509_pop_free(chain, X509_free);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
X509_free(x509);
|
|
|
|
#ifdef SSL_set0_chain
|
|
|
|
/*
|
|
* SSL_set0_chain() is only available in OpenSSL 1.0.2+,
|
|
* but this function is only called via certificate callback,
|
|
* which is only available in OpenSSL 1.0.2+ as well
|
|
*/
|
|
|
|
if (SSL_set0_chain(c->ssl->connection, chain) == 0) {
|
|
ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
|
|
"SSL_set0_chain(\"%s\") failed", cert->data);
|
|
sk_X509_pop_free(chain, X509_free);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#endif
|
|
|
|
pkey = ngx_ssl_load_certificate_key(pool, &err, key, passwords);
|
|
if (pkey == NULL) {
|
|
if (err != NULL) {
|
|
ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
|
|
"cannot load certificate key \"%s\": %s",
|
|
key->data, err);
|
|
}
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_use_PrivateKey(c->ssl->connection, pkey) == 0) {
|
|
ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
|
|
"SSL_use_PrivateKey(\"%s\") failed", key->data);
|
|
EVP_PKEY_free(pkey);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
EVP_PKEY_free(pkey);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static X509 *
|
|
ngx_ssl_load_certificate(ngx_pool_t *pool, char **err, ngx_str_t *cert,
|
|
STACK_OF(X509) **chain)
|
|
{
|
|
BIO *bio;
|
|
X509 *x509, *temp;
|
|
u_long n;
|
|
|
|
if (ngx_strncmp(cert->data, "data:", sizeof("data:") - 1) == 0) {
|
|
|
|
bio = BIO_new_mem_buf(cert->data + sizeof("data:") - 1,
|
|
cert->len - (sizeof("data:") - 1));
|
|
if (bio == NULL) {
|
|
*err = "BIO_new_mem_buf() failed";
|
|
return NULL;
|
|
}
|
|
|
|
} else {
|
|
|
|
if (ngx_get_full_name(pool, (ngx_str_t *) &ngx_cycle->conf_prefix, cert)
|
|
!= NGX_OK)
|
|
{
|
|
*err = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
bio = BIO_new_file((char *) cert->data, "r");
|
|
if (bio == NULL) {
|
|
*err = "BIO_new_file() failed";
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* certificate itself */
|
|
|
|
x509 = PEM_read_bio_X509_AUX(bio, NULL, NULL, NULL);
|
|
if (x509 == NULL) {
|
|
*err = "PEM_read_bio_X509_AUX() failed";
|
|
BIO_free(bio);
|
|
return NULL;
|
|
}
|
|
|
|
/* rest of the chain */
|
|
|
|
*chain = sk_X509_new_null();
|
|
if (*chain == NULL) {
|
|
*err = "sk_X509_new_null() failed";
|
|
BIO_free(bio);
|
|
X509_free(x509);
|
|
return NULL;
|
|
}
|
|
|
|
for ( ;; ) {
|
|
|
|
temp = PEM_read_bio_X509(bio, NULL, NULL, NULL);
|
|
if (temp == NULL) {
|
|
n = ERR_peek_last_error();
|
|
|
|
if (ERR_GET_LIB(n) == ERR_LIB_PEM
|
|
&& ERR_GET_REASON(n) == PEM_R_NO_START_LINE)
|
|
{
|
|
/* end of file */
|
|
ERR_clear_error();
|
|
break;
|
|
}
|
|
|
|
/* some real error */
|
|
|
|
*err = "PEM_read_bio_X509() failed";
|
|
BIO_free(bio);
|
|
X509_free(x509);
|
|
sk_X509_pop_free(*chain, X509_free);
|
|
return NULL;
|
|
}
|
|
|
|
if (sk_X509_push(*chain, temp) == 0) {
|
|
*err = "sk_X509_push() failed";
|
|
BIO_free(bio);
|
|
X509_free(x509);
|
|
sk_X509_pop_free(*chain, X509_free);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
BIO_free(bio);
|
|
|
|
return x509;
|
|
}
|
|
|
|
|
|
static EVP_PKEY *
|
|
ngx_ssl_load_certificate_key(ngx_pool_t *pool, char **err,
|
|
ngx_str_t *key, ngx_array_t *passwords)
|
|
{
|
|
BIO *bio;
|
|
EVP_PKEY *pkey;
|
|
ngx_str_t *pwd;
|
|
ngx_uint_t tries;
|
|
pem_password_cb *cb;
|
|
|
|
if (ngx_strncmp(key->data, "engine:", sizeof("engine:") - 1) == 0) {
|
|
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
|
|
u_char *p, *last;
|
|
ENGINE *engine;
|
|
|
|
p = key->data + sizeof("engine:") - 1;
|
|
last = (u_char *) ngx_strchr(p, ':');
|
|
|
|
if (last == NULL) {
|
|
*err = "invalid syntax";
|
|
return NULL;
|
|
}
|
|
|
|
*last = '\0';
|
|
|
|
engine = ENGINE_by_id((char *) p);
|
|
|
|
if (engine == NULL) {
|
|
*err = "ENGINE_by_id() failed";
|
|
return NULL;
|
|
}
|
|
|
|
*last++ = ':';
|
|
|
|
pkey = ENGINE_load_private_key(engine, (char *) last, 0, 0);
|
|
|
|
if (pkey == NULL) {
|
|
*err = "ENGINE_load_private_key() failed";
|
|
ENGINE_free(engine);
|
|
return NULL;
|
|
}
|
|
|
|
ENGINE_free(engine);
|
|
|
|
return pkey;
|
|
|
|
#else
|
|
|
|
*err = "loading \"engine:...\" certificate keys is not supported";
|
|
return NULL;
|
|
|
|
#endif
|
|
}
|
|
|
|
if (ngx_strncmp(key->data, "data:", sizeof("data:") - 1) == 0) {
|
|
|
|
bio = BIO_new_mem_buf(key->data + sizeof("data:") - 1,
|
|
key->len - (sizeof("data:") - 1));
|
|
if (bio == NULL) {
|
|
*err = "BIO_new_mem_buf() failed";
|
|
return NULL;
|
|
}
|
|
|
|
} else {
|
|
|
|
if (ngx_get_full_name(pool, (ngx_str_t *) &ngx_cycle->conf_prefix, key)
|
|
!= NGX_OK)
|
|
{
|
|
*err = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
bio = BIO_new_file((char *) key->data, "r");
|
|
if (bio == NULL) {
|
|
*err = "BIO_new_file() failed";
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (passwords) {
|
|
tries = passwords->nelts;
|
|
pwd = passwords->elts;
|
|
cb = ngx_ssl_password_callback;
|
|
|
|
} else {
|
|
tries = 1;
|
|
pwd = NULL;
|
|
cb = NULL;
|
|
}
|
|
|
|
for ( ;; ) {
|
|
|
|
pkey = PEM_read_bio_PrivateKey(bio, NULL, cb, pwd);
|
|
if (pkey != NULL) {
|
|
break;
|
|
}
|
|
|
|
if (tries-- > 1) {
|
|
ERR_clear_error();
|
|
(void) BIO_reset(bio);
|
|
pwd++;
|
|
continue;
|
|
}
|
|
|
|
*err = "PEM_read_bio_PrivateKey() failed";
|
|
BIO_free(bio);
|
|
return NULL;
|
|
}
|
|
|
|
BIO_free(bio);
|
|
|
|
return pkey;
|
|
}
|
|
|
|
|
|
static int
|
|
ngx_ssl_password_callback(char *buf, int size, int rwflag, void *userdata)
|
|
{
|
|
ngx_str_t *pwd = userdata;
|
|
|
|
if (rwflag) {
|
|
ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0,
|
|
"ngx_ssl_password_callback() is called for encryption");
|
|
return 0;
|
|
}
|
|
|
|
if (pwd == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
if (pwd->len > (size_t) size) {
|
|
ngx_log_error(NGX_LOG_ERR, ngx_cycle->log, 0,
|
|
"password is truncated to %d bytes", size);
|
|
} else {
|
|
size = pwd->len;
|
|
}
|
|
|
|
ngx_memcpy(buf, pwd->data, size);
|
|
|
|
return size;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_ciphers(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *ciphers,
|
|
ngx_uint_t prefer_server_ciphers)
|
|
{
|
|
if (SSL_CTX_set_cipher_list(ssl->ctx, (char *) ciphers->data) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_set_cipher_list(\"%V\") failed",
|
|
ciphers);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (prefer_server_ciphers) {
|
|
SSL_CTX_set_options(ssl->ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
|
|
ngx_int_t depth)
|
|
{
|
|
STACK_OF(X509_NAME) *list;
|
|
|
|
SSL_CTX_set_verify(ssl->ctx, SSL_VERIFY_PEER, ngx_ssl_verify_callback);
|
|
|
|
SSL_CTX_set_verify_depth(ssl->ctx, depth);
|
|
|
|
if (cert->len == 0) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
if (ngx_conf_full_name(cf->cycle, cert, 1) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_CTX_load_verify_locations(ssl->ctx, (char *) cert->data, NULL)
|
|
== 0)
|
|
{
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_load_verify_locations(\"%s\") failed",
|
|
cert->data);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
/*
|
|
* SSL_CTX_load_verify_locations() may leave errors in the error queue
|
|
* while returning success
|
|
*/
|
|
|
|
ERR_clear_error();
|
|
|
|
list = SSL_load_client_CA_file((char *) cert->data);
|
|
|
|
if (list == NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_load_client_CA_file(\"%s\") failed", cert->data);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
SSL_CTX_set_client_CA_list(ssl->ctx, list);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_trusted_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
|
|
ngx_int_t depth)
|
|
{
|
|
SSL_CTX_set_verify(ssl->ctx, SSL_CTX_get_verify_mode(ssl->ctx),
|
|
ngx_ssl_verify_callback);
|
|
|
|
SSL_CTX_set_verify_depth(ssl->ctx, depth);
|
|
|
|
if (cert->len == 0) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
if (ngx_conf_full_name(cf->cycle, cert, 1) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_CTX_load_verify_locations(ssl->ctx, (char *) cert->data, NULL)
|
|
== 0)
|
|
{
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_load_verify_locations(\"%s\") failed",
|
|
cert->data);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
/*
|
|
* SSL_CTX_load_verify_locations() may leave errors in the error queue
|
|
* while returning success
|
|
*/
|
|
|
|
ERR_clear_error();
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_crl(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *crl)
|
|
{
|
|
X509_STORE *store;
|
|
X509_LOOKUP *lookup;
|
|
|
|
if (crl->len == 0) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
if (ngx_conf_full_name(cf->cycle, crl, 1) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
store = SSL_CTX_get_cert_store(ssl->ctx);
|
|
|
|
if (store == NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_get_cert_store() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
|
|
|
|
if (lookup == NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"X509_STORE_add_lookup() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (X509_LOOKUP_load_file(lookup, (char *) crl->data, X509_FILETYPE_PEM)
|
|
== 0)
|
|
{
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"X509_LOOKUP_load_file(\"%s\") failed", crl->data);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
X509_STORE_set_flags(store,
|
|
X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static int
|
|
ngx_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store)
|
|
{
|
|
#if (NGX_DEBUG)
|
|
char *subject, *issuer;
|
|
int err, depth;
|
|
X509 *cert;
|
|
X509_NAME *sname, *iname;
|
|
ngx_connection_t *c;
|
|
ngx_ssl_conn_t *ssl_conn;
|
|
|
|
ssl_conn = X509_STORE_CTX_get_ex_data(x509_store,
|
|
SSL_get_ex_data_X509_STORE_CTX_idx());
|
|
|
|
c = ngx_ssl_get_connection(ssl_conn);
|
|
|
|
if (!(c->log->log_level & NGX_LOG_DEBUG_EVENT)) {
|
|
return 1;
|
|
}
|
|
|
|
cert = X509_STORE_CTX_get_current_cert(x509_store);
|
|
err = X509_STORE_CTX_get_error(x509_store);
|
|
depth = X509_STORE_CTX_get_error_depth(x509_store);
|
|
|
|
sname = X509_get_subject_name(cert);
|
|
|
|
if (sname) {
|
|
subject = X509_NAME_oneline(sname, NULL, 0);
|
|
if (subject == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0,
|
|
"X509_NAME_oneline() failed");
|
|
}
|
|
|
|
} else {
|
|
subject = NULL;
|
|
}
|
|
|
|
iname = X509_get_issuer_name(cert);
|
|
|
|
if (iname) {
|
|
issuer = X509_NAME_oneline(iname, NULL, 0);
|
|
if (issuer == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0,
|
|
"X509_NAME_oneline() failed");
|
|
}
|
|
|
|
} else {
|
|
issuer = NULL;
|
|
}
|
|
|
|
ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"verify:%d, error:%d, depth:%d, "
|
|
"subject:\"%s\", issuer:\"%s\"",
|
|
ok, err, depth,
|
|
subject ? subject : "(none)",
|
|
issuer ? issuer : "(none)");
|
|
|
|
if (subject) {
|
|
OPENSSL_free(subject);
|
|
}
|
|
|
|
if (issuer) {
|
|
OPENSSL_free(issuer);
|
|
}
|
|
#endif
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where, int ret)
|
|
{
|
|
BIO *rbio, *wbio;
|
|
ngx_connection_t *c;
|
|
|
|
#ifndef SSL_OP_NO_RENEGOTIATION
|
|
|
|
if ((where & SSL_CB_HANDSHAKE_START)
|
|
&& SSL_is_server((ngx_ssl_conn_t *) ssl_conn))
|
|
{
|
|
c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
|
|
|
|
if (c->ssl->handshaked) {
|
|
c->ssl->renegotiation = 1;
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL renegotiation");
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef TLS1_3_VERSION
|
|
|
|
if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP
|
|
&& SSL_version(ssl_conn) == TLS1_3_VERSION)
|
|
{
|
|
time_t now, time, timeout, conf_timeout;
|
|
SSL_SESSION *sess;
|
|
|
|
/*
|
|
* OpenSSL with TLSv1.3 updates the session creation time on
|
|
* session resumption and keeps the session timeout unmodified,
|
|
* making it possible to maintain the session forever, bypassing
|
|
* client certificate expiration and revocation. To make sure
|
|
* session timeouts are actually used, we now update the session
|
|
* creation time and reduce the session timeout accordingly.
|
|
*
|
|
* BoringSSL with TLSv1.3 ignores configured session timeouts
|
|
* and uses a hardcoded timeout instead, 7 days. So we update
|
|
* session timeout to the configured value as soon as a session
|
|
* is created.
|
|
*/
|
|
|
|
c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
|
|
sess = SSL_get0_session(ssl_conn);
|
|
|
|
if (!c->ssl->session_timeout_set && sess) {
|
|
c->ssl->session_timeout_set = 1;
|
|
|
|
now = ngx_time();
|
|
time = SSL_SESSION_get_time(sess);
|
|
timeout = SSL_SESSION_get_timeout(sess);
|
|
conf_timeout = SSL_CTX_get_timeout(c->ssl->session_ctx);
|
|
|
|
timeout = ngx_min(timeout, conf_timeout);
|
|
|
|
if (now - time >= timeout) {
|
|
SSL_SESSION_set1_id_context(sess, (unsigned char *) "", 0);
|
|
|
|
} else {
|
|
SSL_SESSION_set_time(sess, now);
|
|
SSL_SESSION_set_timeout(sess, timeout - (now - time));
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP) {
|
|
c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
|
|
|
|
if (!c->ssl->handshake_buffer_set) {
|
|
/*
|
|
* By default OpenSSL uses 4k buffer during a handshake,
|
|
* which is too low for long certificate chains and might
|
|
* result in extra round-trips.
|
|
*
|
|
* To adjust a buffer size we detect that buffering was added
|
|
* to write side of the connection by comparing rbio and wbio.
|
|
* If they are different, we assume that it's due to buffering
|
|
* added to wbio, and set buffer size.
|
|
*/
|
|
|
|
rbio = SSL_get_rbio(ssl_conn);
|
|
wbio = SSL_get_wbio(ssl_conn);
|
|
|
|
if (rbio != wbio) {
|
|
(void) BIO_set_write_buffer_size(wbio, NGX_SSL_BUFSIZE);
|
|
c->ssl->handshake_buffer_set = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
ngx_array_t *
|
|
ngx_ssl_read_password_file(ngx_conf_t *cf, ngx_str_t *file)
|
|
{
|
|
u_char *p, *last, *end;
|
|
size_t len;
|
|
ssize_t n;
|
|
ngx_fd_t fd;
|
|
ngx_str_t *pwd;
|
|
ngx_array_t *passwords;
|
|
ngx_pool_cleanup_t *cln;
|
|
u_char buf[NGX_SSL_PASSWORD_BUFFER_SIZE];
|
|
|
|
if (ngx_conf_full_name(cf->cycle, file, 1) != NGX_OK) {
|
|
return NULL;
|
|
}
|
|
|
|
passwords = ngx_array_create(cf->temp_pool, 4, sizeof(ngx_str_t));
|
|
if (passwords == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
cln = ngx_pool_cleanup_add(cf->temp_pool, 0);
|
|
if (cln == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
cln->handler = ngx_ssl_passwords_cleanup;
|
|
cln->data = passwords;
|
|
|
|
fd = ngx_open_file(file->data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0);
|
|
|
|
if (fd == NGX_INVALID_FILE) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
ngx_open_file_n " \"%s\" failed", file->data);
|
|
return NULL;
|
|
}
|
|
|
|
len = 0;
|
|
last = buf;
|
|
|
|
do {
|
|
n = ngx_read_fd(fd, last, NGX_SSL_PASSWORD_BUFFER_SIZE - len);
|
|
|
|
if (n == -1) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
ngx_read_fd_n " \"%s\" failed", file->data);
|
|
passwords = NULL;
|
|
goto cleanup;
|
|
}
|
|
|
|
end = last + n;
|
|
|
|
if (len && n == 0) {
|
|
*end++ = LF;
|
|
}
|
|
|
|
p = buf;
|
|
|
|
for ( ;; ) {
|
|
last = ngx_strlchr(last, end, LF);
|
|
|
|
if (last == NULL) {
|
|
break;
|
|
}
|
|
|
|
len = last++ - p;
|
|
|
|
if (len && p[len - 1] == CR) {
|
|
len--;
|
|
}
|
|
|
|
if (len) {
|
|
pwd = ngx_array_push(passwords);
|
|
if (pwd == NULL) {
|
|
passwords = NULL;
|
|
goto cleanup;
|
|
}
|
|
|
|
pwd->len = len;
|
|
pwd->data = ngx_pnalloc(cf->temp_pool, len);
|
|
|
|
if (pwd->data == NULL) {
|
|
passwords->nelts--;
|
|
passwords = NULL;
|
|
goto cleanup;
|
|
}
|
|
|
|
ngx_memcpy(pwd->data, p, len);
|
|
}
|
|
|
|
p = last;
|
|
}
|
|
|
|
len = end - p;
|
|
|
|
if (len == NGX_SSL_PASSWORD_BUFFER_SIZE) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"too long line in \"%s\"", file->data);
|
|
passwords = NULL;
|
|
goto cleanup;
|
|
}
|
|
|
|
ngx_memmove(buf, p, len);
|
|
last = buf + len;
|
|
|
|
} while (n != 0);
|
|
|
|
if (passwords->nelts == 0) {
|
|
pwd = ngx_array_push(passwords);
|
|
if (pwd == NULL) {
|
|
passwords = NULL;
|
|
goto cleanup;
|
|
}
|
|
|
|
ngx_memzero(pwd, sizeof(ngx_str_t));
|
|
}
|
|
|
|
cleanup:
|
|
|
|
if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
ngx_conf_log_error(NGX_LOG_ALERT, cf, ngx_errno,
|
|
ngx_close_file_n " \"%s\" failed", file->data);
|
|
}
|
|
|
|
ngx_explicit_memzero(buf, NGX_SSL_PASSWORD_BUFFER_SIZE);
|
|
|
|
return passwords;
|
|
}
|
|
|
|
|
|
ngx_array_t *
|
|
ngx_ssl_preserve_passwords(ngx_conf_t *cf, ngx_array_t *passwords)
|
|
{
|
|
ngx_str_t *opwd, *pwd;
|
|
ngx_uint_t i;
|
|
ngx_array_t *pwds;
|
|
ngx_pool_cleanup_t *cln;
|
|
static ngx_array_t empty_passwords;
|
|
|
|
if (passwords == NULL) {
|
|
|
|
/*
|
|
* If there are no passwords, an empty array is used
|
|
* to make sure OpenSSL's default password callback
|
|
* won't block on reading from stdin.
|
|
*/
|
|
|
|
return &empty_passwords;
|
|
}
|
|
|
|
/*
|
|
* Passwords are normally allocated from the temporary pool
|
|
* and cleared after parsing configuration. To be used at
|
|
* runtime they have to be copied to the configuration pool.
|
|
*/
|
|
|
|
pwds = ngx_array_create(cf->pool, passwords->nelts, sizeof(ngx_str_t));
|
|
if (pwds == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
if (cln == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
cln->handler = ngx_ssl_passwords_cleanup;
|
|
cln->data = pwds;
|
|
|
|
opwd = passwords->elts;
|
|
|
|
for (i = 0; i < passwords->nelts; i++) {
|
|
|
|
pwd = ngx_array_push(pwds);
|
|
if (pwd == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
pwd->len = opwd[i].len;
|
|
pwd->data = ngx_pnalloc(cf->pool, pwd->len);
|
|
|
|
if (pwd->data == NULL) {
|
|
pwds->nelts--;
|
|
return NULL;
|
|
}
|
|
|
|
ngx_memcpy(pwd->data, opwd[i].data, opwd[i].len);
|
|
}
|
|
|
|
return pwds;
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_passwords_cleanup(void *data)
|
|
{
|
|
ngx_array_t *passwords = data;
|
|
|
|
ngx_str_t *pwd;
|
|
ngx_uint_t i;
|
|
|
|
pwd = passwords->elts;
|
|
|
|
for (i = 0; i < passwords->nelts; i++) {
|
|
ngx_explicit_memzero(pwd[i].data, pwd[i].len);
|
|
}
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_dhparam(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *file)
|
|
{
|
|
BIO *bio;
|
|
|
|
if (file->len == 0) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
if (ngx_conf_full_name(cf->cycle, file, 1) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
bio = BIO_new_file((char *) file->data, "r");
|
|
if (bio == NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"BIO_new_file(\"%s\") failed", file->data);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#ifdef SSL_CTX_set_tmp_dh
|
|
{
|
|
DH *dh;
|
|
|
|
dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
|
|
if (dh == NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"PEM_read_bio_DHparams(\"%s\") failed", file->data);
|
|
BIO_free(bio);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_CTX_set_tmp_dh(ssl->ctx, dh) != 1) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_set_tmp_dh(\"%s\") failed", file->data);
|
|
DH_free(dh);
|
|
BIO_free(bio);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
DH_free(dh);
|
|
}
|
|
#else
|
|
{
|
|
EVP_PKEY *dh;
|
|
|
|
/*
|
|
* PEM_read_bio_DHparams() and SSL_CTX_set_tmp_dh()
|
|
* are deprecated in OpenSSL 3.0
|
|
*/
|
|
|
|
dh = PEM_read_bio_Parameters(bio, NULL);
|
|
if (dh == NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"PEM_read_bio_Parameters(\"%s\") failed", file->data);
|
|
BIO_free(bio);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_CTX_set0_tmp_dh_pkey(ssl->ctx, dh) != 1) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_set0_tmp_dh_pkey(\%s\") failed", file->data);
|
|
#if (OPENSSL_VERSION_NUMBER >= 0x3000001fL)
|
|
EVP_PKEY_free(dh);
|
|
#endif
|
|
BIO_free(bio);
|
|
return NGX_ERROR;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
BIO_free(bio);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_ecdh_curve(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *name)
|
|
{
|
|
#ifndef OPENSSL_NO_ECDH
|
|
|
|
/*
|
|
* Elliptic-Curve Diffie-Hellman parameters are either "named curves"
|
|
* from RFC 4492 section 5.1.1, or explicitly described curves over
|
|
* binary fields. OpenSSL only supports the "named curves", which provide
|
|
* maximum interoperability.
|
|
*/
|
|
|
|
#if (defined SSL_CTX_set1_curves_list || defined SSL_CTRL_SET_CURVES_LIST)
|
|
|
|
/*
|
|
* OpenSSL 1.0.2+ allows configuring a curve list instead of a single
|
|
* curve previously supported. By default an internal list is used,
|
|
* with prime256v1 being preferred by server in OpenSSL 1.0.2b+
|
|
* and X25519 in OpenSSL 1.1.0+.
|
|
*
|
|
* By default a curve preferred by the client will be used for
|
|
* key exchange. The SSL_OP_CIPHER_SERVER_PREFERENCE option can
|
|
* be used to prefer server curves instead, similar to what it
|
|
* does for ciphers.
|
|
*/
|
|
|
|
SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_ECDH_USE);
|
|
|
|
#ifdef SSL_CTRL_SET_ECDH_AUTO
|
|
/* not needed in OpenSSL 1.1.0+ */
|
|
(void) SSL_CTX_set_ecdh_auto(ssl->ctx, 1);
|
|
#endif
|
|
|
|
if (ngx_strcmp(name->data, "auto") == 0) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
if (SSL_CTX_set1_curves_list(ssl->ctx, (char *) name->data) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_set1_curves_list(\"%s\") failed", name->data);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#else
|
|
|
|
int nid;
|
|
char *curve;
|
|
EC_KEY *ecdh;
|
|
|
|
if (ngx_strcmp(name->data, "auto") == 0) {
|
|
curve = "prime256v1";
|
|
|
|
} else {
|
|
curve = (char *) name->data;
|
|
}
|
|
|
|
nid = OBJ_sn2nid(curve);
|
|
if (nid == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"OBJ_sn2nid(\"%s\") failed: unknown curve", curve);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ecdh = EC_KEY_new_by_curve_name(nid);
|
|
if (ecdh == NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"EC_KEY_new_by_curve_name(\"%s\") failed", curve);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_ECDH_USE);
|
|
|
|
SSL_CTX_set_tmp_ecdh(ssl->ctx, ecdh);
|
|
|
|
EC_KEY_free(ecdh);
|
|
#endif
|
|
#endif
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_early_data(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_uint_t enable)
|
|
{
|
|
if (!enable) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
#ifdef SSL_ERROR_EARLY_DATA_REJECTED
|
|
|
|
/* BoringSSL */
|
|
|
|
SSL_CTX_set_early_data_enabled(ssl->ctx, 1);
|
|
|
|
#elif defined SSL_READ_EARLY_DATA_SUCCESS
|
|
|
|
/* OpenSSL */
|
|
|
|
SSL_CTX_set_max_early_data(ssl->ctx, NGX_SSL_BUFSIZE);
|
|
|
|
#else
|
|
ngx_log_error(NGX_LOG_WARN, ssl->log, 0,
|
|
"\"ssl_early_data\" is not supported on this platform, "
|
|
"ignored");
|
|
#endif
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_conf_commands(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_array_t *commands)
|
|
{
|
|
if (commands == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
#ifdef SSL_CONF_FLAG_FILE
|
|
{
|
|
int type;
|
|
u_char *key, *value;
|
|
ngx_uint_t i;
|
|
ngx_keyval_t *cmd;
|
|
SSL_CONF_CTX *cctx;
|
|
|
|
cctx = SSL_CONF_CTX_new();
|
|
if (cctx == NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CONF_CTX_new() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_FILE);
|
|
SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
|
|
SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
|
|
SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CERTIFICATE);
|
|
SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SHOW_ERRORS);
|
|
|
|
SSL_CONF_CTX_set_ssl_ctx(cctx, ssl->ctx);
|
|
|
|
cmd = commands->elts;
|
|
for (i = 0; i < commands->nelts; i++) {
|
|
|
|
key = cmd[i].key.data;
|
|
type = SSL_CONF_cmd_value_type(cctx, (char *) key);
|
|
|
|
if (type == SSL_CONF_TYPE_FILE || type == SSL_CONF_TYPE_DIR) {
|
|
if (ngx_conf_full_name(cf->cycle, &cmd[i].value, 1) != NGX_OK) {
|
|
SSL_CONF_CTX_free(cctx);
|
|
return NGX_ERROR;
|
|
}
|
|
}
|
|
|
|
value = cmd[i].value.data;
|
|
|
|
if (SSL_CONF_cmd(cctx, (char *) key, (char *) value) <= 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CONF_cmd(\"%s\", \"%s\") failed", key, value);
|
|
SSL_CONF_CTX_free(cctx);
|
|
return NGX_ERROR;
|
|
}
|
|
}
|
|
|
|
if (SSL_CONF_CTX_finish(cctx) != 1) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CONF_finish() failed");
|
|
SSL_CONF_CTX_free(cctx);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
SSL_CONF_CTX_free(cctx);
|
|
|
|
return NGX_OK;
|
|
}
|
|
#else
|
|
ngx_log_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CONF_cmd() is not available on this platform");
|
|
return NGX_ERROR;
|
|
#endif
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_client_session_cache(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_uint_t enable)
|
|
{
|
|
if (!enable) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
SSL_CTX_set_session_cache_mode(ssl->ctx,
|
|
SSL_SESS_CACHE_CLIENT
|
|
|SSL_SESS_CACHE_NO_INTERNAL);
|
|
|
|
SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_client_session);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static int
|
|
ngx_ssl_new_client_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
|
|
{
|
|
ngx_connection_t *c;
|
|
|
|
c = ngx_ssl_get_connection(ssl_conn);
|
|
|
|
if (c->ssl->save_session) {
|
|
c->ssl->session = sess;
|
|
|
|
c->ssl->save_session(c);
|
|
|
|
c->ssl->session = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_create_connection(ngx_ssl_t *ssl, ngx_connection_t *c, ngx_uint_t flags)
|
|
{
|
|
ngx_ssl_connection_t *sc;
|
|
|
|
sc = ngx_pcalloc(c->pool, sizeof(ngx_ssl_connection_t));
|
|
if (sc == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
sc->buffer = ((flags & NGX_SSL_BUFFER) != 0);
|
|
sc->buffer_size = ssl->buffer_size;
|
|
|
|
sc->session_ctx = ssl->ctx;
|
|
|
|
#ifdef SSL_READ_EARLY_DATA_SUCCESS
|
|
if (SSL_CTX_get_max_early_data(ssl->ctx)) {
|
|
sc->try_early_data = 1;
|
|
}
|
|
#endif
|
|
|
|
sc->connection = SSL_new(ssl->ctx);
|
|
|
|
if (sc->connection == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_new() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_set_fd(sc->connection, c->fd) == 0) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_fd() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (flags & NGX_SSL_CLIENT) {
|
|
SSL_set_connect_state(sc->connection);
|
|
|
|
} else {
|
|
SSL_set_accept_state(sc->connection);
|
|
|
|
#ifdef SSL_OP_NO_RENEGOTIATION
|
|
SSL_set_options(sc->connection, SSL_OP_NO_RENEGOTIATION);
|
|
#endif
|
|
}
|
|
|
|
if (SSL_set_ex_data(sc->connection, ngx_ssl_connection_index, c) == 0) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
c->ssl = sc;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_ssl_session_t *
|
|
ngx_ssl_get_session(ngx_connection_t *c)
|
|
{
|
|
#ifdef TLS1_3_VERSION
|
|
if (c->ssl->session) {
|
|
SSL_SESSION_up_ref(c->ssl->session);
|
|
return c->ssl->session;
|
|
}
|
|
#endif
|
|
|
|
return SSL_get1_session(c->ssl->connection);
|
|
}
|
|
|
|
|
|
ngx_ssl_session_t *
|
|
ngx_ssl_get0_session(ngx_connection_t *c)
|
|
{
|
|
if (c->ssl->session) {
|
|
return c->ssl->session;
|
|
}
|
|
|
|
return SSL_get0_session(c->ssl->connection);
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session)
|
|
{
|
|
if (session) {
|
|
if (SSL_set_session(c->ssl->connection, session) == 0) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_session() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_handshake(ngx_connection_t *c)
|
|
{
|
|
int n, sslerr;
|
|
ngx_err_t err;
|
|
ngx_int_t rc;
|
|
|
|
#ifdef SSL_READ_EARLY_DATA_SUCCESS
|
|
if (c->ssl->try_early_data) {
|
|
return ngx_ssl_try_early_data(c);
|
|
}
|
|
#endif
|
|
|
|
if (c->ssl->in_ocsp) {
|
|
return ngx_ssl_ocsp_validate(c);
|
|
}
|
|
|
|
ngx_ssl_clear_error(c->log);
|
|
|
|
n = SSL_do_handshake(c->ssl->connection);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
|
|
|
|
if (n == 1) {
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#if (NGX_DEBUG)
|
|
ngx_ssl_handshake_log(c);
|
|
#endif
|
|
|
|
c->recv = ngx_ssl_recv;
|
|
c->send = ngx_ssl_write;
|
|
c->recv_chain = ngx_ssl_recv_chain;
|
|
c->send_chain = ngx_ssl_send_chain;
|
|
|
|
c->read->ready = 1;
|
|
c->write->ready = 1;
|
|
|
|
#ifndef SSL_OP_NO_RENEGOTIATION
|
|
#if OPENSSL_VERSION_NUMBER < 0x10100000L
|
|
#ifdef SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS
|
|
|
|
/* initial handshake done, disable renegotiation (CVE-2009-3555) */
|
|
if (c->ssl->connection->s3 && SSL_is_server(c->ssl->connection)) {
|
|
c->ssl->connection->s3->flags |= SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS;
|
|
}
|
|
|
|
#endif
|
|
#endif
|
|
#endif
|
|
|
|
#if (defined BIO_get_ktls_send && !NGX_WIN32)
|
|
|
|
if (BIO_get_ktls_send(SSL_get_wbio(c->ssl->connection)) == 1) {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"BIO_get_ktls_send(): 1");
|
|
c->ssl->sendfile = 1;
|
|
}
|
|
|
|
#endif
|
|
|
|
rc = ngx_ssl_ocsp_validate(c);
|
|
|
|
if (rc == NGX_ERROR) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (rc == NGX_AGAIN) {
|
|
c->read->handler = ngx_ssl_handshake_handler;
|
|
c->write->handler = ngx_ssl_handshake_handler;
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
c->ssl->handshaked = 1;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
|
if (sslerr == SSL_ERROR_WANT_READ) {
|
|
c->read->ready = 0;
|
|
c->read->handler = ngx_ssl_handshake_handler;
|
|
c->write->handler = ngx_ssl_handshake_handler;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
c->write->ready = 0;
|
|
c->read->handler = ngx_ssl_handshake_handler;
|
|
c->write->handler = ngx_ssl_handshake_handler;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
|
c->ssl->no_wait_shutdown = 1;
|
|
c->ssl->no_send_shutdown = 1;
|
|
c->read->eof = 1;
|
|
|
|
if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
ngx_connection_error(c, err,
|
|
"peer closed connection in SSL handshake");
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (c->ssl->handshake_rejected) {
|
|
ngx_connection_error(c, err, "handshake rejected");
|
|
ERR_clear_error();
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
c->read->error = 1;
|
|
|
|
ngx_ssl_connection_error(c, sslerr, err, "SSL_do_handshake() failed");
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
|
|
#ifdef SSL_READ_EARLY_DATA_SUCCESS
|
|
|
|
static ngx_int_t
|
|
ngx_ssl_try_early_data(ngx_connection_t *c)
|
|
{
|
|
int n, sslerr;
|
|
u_char buf;
|
|
size_t readbytes;
|
|
ngx_err_t err;
|
|
ngx_int_t rc;
|
|
|
|
ngx_ssl_clear_error(c->log);
|
|
|
|
readbytes = 0;
|
|
|
|
n = SSL_read_early_data(c->ssl->connection, &buf, 1, &readbytes);
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_read_early_data: %d, %uz", n, readbytes);
|
|
|
|
if (n == SSL_READ_EARLY_DATA_FINISH) {
|
|
c->ssl->try_early_data = 0;
|
|
return ngx_ssl_handshake(c);
|
|
}
|
|
|
|
if (n == SSL_READ_EARLY_DATA_SUCCESS) {
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#if (NGX_DEBUG)
|
|
ngx_ssl_handshake_log(c);
|
|
#endif
|
|
|
|
c->ssl->try_early_data = 0;
|
|
|
|
c->ssl->early_buf = buf;
|
|
c->ssl->early_preread = 1;
|
|
|
|
c->ssl->in_early = 1;
|
|
|
|
c->recv = ngx_ssl_recv;
|
|
c->send = ngx_ssl_write;
|
|
c->recv_chain = ngx_ssl_recv_chain;
|
|
c->send_chain = ngx_ssl_send_chain;
|
|
|
|
c->read->ready = 1;
|
|
c->write->ready = 1;
|
|
|
|
#if (defined BIO_get_ktls_send && !NGX_WIN32)
|
|
|
|
if (BIO_get_ktls_send(SSL_get_wbio(c->ssl->connection)) == 1) {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"BIO_get_ktls_send(): 1");
|
|
c->ssl->sendfile = 1;
|
|
}
|
|
|
|
#endif
|
|
|
|
rc = ngx_ssl_ocsp_validate(c);
|
|
|
|
if (rc == NGX_ERROR) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (rc == NGX_AGAIN) {
|
|
c->read->handler = ngx_ssl_handshake_handler;
|
|
c->write->handler = ngx_ssl_handshake_handler;
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
c->ssl->handshaked = 1;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
/* SSL_READ_EARLY_DATA_ERROR */
|
|
|
|
sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
|
if (sslerr == SSL_ERROR_WANT_READ) {
|
|
c->read->ready = 0;
|
|
c->read->handler = ngx_ssl_handshake_handler;
|
|
c->write->handler = ngx_ssl_handshake_handler;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
c->write->ready = 0;
|
|
c->read->handler = ngx_ssl_handshake_handler;
|
|
c->write->handler = ngx_ssl_handshake_handler;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
|
c->ssl->no_wait_shutdown = 1;
|
|
c->ssl->no_send_shutdown = 1;
|
|
c->read->eof = 1;
|
|
|
|
if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
ngx_connection_error(c, err,
|
|
"peer closed connection in SSL handshake");
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
c->read->error = 1;
|
|
|
|
ngx_ssl_connection_error(c, sslerr, err, "SSL_read_early_data() failed");
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
#if (NGX_DEBUG)
|
|
|
|
void
|
|
ngx_ssl_handshake_log(ngx_connection_t *c)
|
|
{
|
|
char buf[129], *s, *d;
|
|
#if OPENSSL_VERSION_NUMBER >= 0x10000000L
|
|
const
|
|
#endif
|
|
SSL_CIPHER *cipher;
|
|
|
|
if (!(c->log->log_level & NGX_LOG_DEBUG_EVENT)) {
|
|
return;
|
|
}
|
|
|
|
cipher = SSL_get_current_cipher(c->ssl->connection);
|
|
|
|
if (cipher) {
|
|
SSL_CIPHER_description(cipher, &buf[1], 128);
|
|
|
|
for (s = &buf[1], d = buf; *s; s++) {
|
|
if (*s == ' ' && *d == ' ') {
|
|
continue;
|
|
}
|
|
|
|
if (*s == LF || *s == CR) {
|
|
continue;
|
|
}
|
|
|
|
*++d = *s;
|
|
}
|
|
|
|
if (*d != ' ') {
|
|
d++;
|
|
}
|
|
|
|
*d = '\0';
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL: %s, cipher: \"%s\"",
|
|
SSL_get_version(c->ssl->connection), &buf[1]);
|
|
|
|
if (SSL_session_reused(c->ssl->connection)) {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL reused session");
|
|
}
|
|
|
|
} else {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL no shared ciphers");
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
static void
|
|
ngx_ssl_handshake_handler(ngx_event_t *ev)
|
|
{
|
|
ngx_connection_t *c;
|
|
|
|
c = ev->data;
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL handshake handler: %d", ev->write);
|
|
|
|
if (ev->timedout) {
|
|
c->ssl->handler(c);
|
|
return;
|
|
}
|
|
|
|
if (ngx_ssl_handshake(c) == NGX_AGAIN) {
|
|
return;
|
|
}
|
|
|
|
c->ssl->handler(c);
|
|
}
|
|
|
|
|
|
ssize_t
|
|
ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl, off_t limit)
|
|
{
|
|
u_char *last;
|
|
ssize_t n, bytes, size;
|
|
ngx_buf_t *b;
|
|
|
|
bytes = 0;
|
|
|
|
b = cl->buf;
|
|
last = b->last;
|
|
|
|
for ( ;; ) {
|
|
size = b->end - last;
|
|
|
|
if (limit) {
|
|
if (bytes >= limit) {
|
|
return bytes;
|
|
}
|
|
|
|
if (bytes + size > limit) {
|
|
size = (ssize_t) (limit - bytes);
|
|
}
|
|
}
|
|
|
|
n = ngx_ssl_recv(c, last, size);
|
|
|
|
if (n > 0) {
|
|
last += n;
|
|
bytes += n;
|
|
|
|
if (!c->read->ready) {
|
|
return bytes;
|
|
}
|
|
|
|
if (last == b->end) {
|
|
cl = cl->next;
|
|
|
|
if (cl == NULL) {
|
|
return bytes;
|
|
}
|
|
|
|
b = cl->buf;
|
|
last = b->last;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (bytes) {
|
|
|
|
if (n == 0 || n == NGX_ERROR) {
|
|
c->read->ready = 1;
|
|
}
|
|
|
|
return bytes;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
}
|
|
|
|
|
|
ssize_t
|
|
ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size)
|
|
{
|
|
int n, bytes;
|
|
|
|
#ifdef SSL_READ_EARLY_DATA_SUCCESS
|
|
if (c->ssl->in_early) {
|
|
return ngx_ssl_recv_early(c, buf, size);
|
|
}
|
|
#endif
|
|
|
|
if (c->ssl->last == NGX_ERROR) {
|
|
c->read->ready = 0;
|
|
c->read->error = 1;
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (c->ssl->last == NGX_DONE) {
|
|
c->read->ready = 0;
|
|
c->read->eof = 1;
|
|
return 0;
|
|
}
|
|
|
|
bytes = 0;
|
|
|
|
ngx_ssl_clear_error(c->log);
|
|
|
|
/*
|
|
* SSL_read() may return data in parts, so try to read
|
|
* until SSL_read() would return no data
|
|
*/
|
|
|
|
for ( ;; ) {
|
|
|
|
n = SSL_read(c->ssl->connection, buf, size);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_read: %d", n);
|
|
|
|
if (n > 0) {
|
|
bytes += n;
|
|
}
|
|
|
|
c->ssl->last = ngx_ssl_handle_recv(c, n);
|
|
|
|
if (c->ssl->last == NGX_OK) {
|
|
|
|
size -= n;
|
|
|
|
if (size == 0) {
|
|
c->read->ready = 1;
|
|
|
|
if (c->read->available >= 0) {
|
|
c->read->available -= bytes;
|
|
|
|
/*
|
|
* there can be data buffered at SSL layer,
|
|
* so we post an event to continue reading on the next
|
|
* iteration of the event loop
|
|
*/
|
|
|
|
if (c->read->available < 0) {
|
|
c->read->available = 0;
|
|
c->read->ready = 0;
|
|
|
|
if (c->read->posted) {
|
|
ngx_delete_posted_event(c->read);
|
|
}
|
|
|
|
ngx_post_event(c->read, &ngx_posted_next_events);
|
|
}
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_read: avail:%d", c->read->available);
|
|
|
|
} else {
|
|
|
|
#if (NGX_HAVE_FIONREAD)
|
|
|
|
if (ngx_socket_nread(c->fd, &c->read->available) == -1) {
|
|
c->read->ready = 0;
|
|
c->read->error = 1;
|
|
ngx_connection_error(c, ngx_socket_errno,
|
|
ngx_socket_nread_n " failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_read: avail:%d", c->read->available);
|
|
|
|
#endif
|
|
}
|
|
|
|
return bytes;
|
|
}
|
|
|
|
buf += n;
|
|
|
|
continue;
|
|
}
|
|
|
|
if (bytes) {
|
|
if (c->ssl->last != NGX_AGAIN) {
|
|
c->read->ready = 1;
|
|
}
|
|
|
|
return bytes;
|
|
}
|
|
|
|
switch (c->ssl->last) {
|
|
|
|
case NGX_DONE:
|
|
c->read->ready = 0;
|
|
c->read->eof = 1;
|
|
return 0;
|
|
|
|
case NGX_ERROR:
|
|
c->read->ready = 0;
|
|
c->read->error = 1;
|
|
|
|
/* fall through */
|
|
|
|
case NGX_AGAIN:
|
|
return c->ssl->last;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef SSL_READ_EARLY_DATA_SUCCESS
|
|
|
|
static ssize_t
|
|
ngx_ssl_recv_early(ngx_connection_t *c, u_char *buf, size_t size)
|
|
{
|
|
int n, bytes;
|
|
size_t readbytes;
|
|
|
|
if (c->ssl->last == NGX_ERROR) {
|
|
c->read->ready = 0;
|
|
c->read->error = 1;
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (c->ssl->last == NGX_DONE) {
|
|
c->read->ready = 0;
|
|
c->read->eof = 1;
|
|
return 0;
|
|
}
|
|
|
|
bytes = 0;
|
|
|
|
ngx_ssl_clear_error(c->log);
|
|
|
|
if (c->ssl->early_preread) {
|
|
|
|
if (size == 0) {
|
|
c->read->ready = 0;
|
|
c->read->eof = 1;
|
|
return 0;
|
|
}
|
|
|
|
*buf = c->ssl->early_buf;
|
|
|
|
c->ssl->early_preread = 0;
|
|
|
|
bytes = 1;
|
|
size -= 1;
|
|
buf += 1;
|
|
}
|
|
|
|
if (c->ssl->write_blocked) {
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
/*
|
|
* SSL_read_early_data() may return data in parts, so try to read
|
|
* until SSL_read_early_data() would return no data
|
|
*/
|
|
|
|
for ( ;; ) {
|
|
|
|
readbytes = 0;
|
|
|
|
n = SSL_read_early_data(c->ssl->connection, buf, size, &readbytes);
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_read_early_data: %d, %uz", n, readbytes);
|
|
|
|
if (n == SSL_READ_EARLY_DATA_SUCCESS) {
|
|
|
|
c->ssl->last = ngx_ssl_handle_recv(c, 1);
|
|
|
|
bytes += readbytes;
|
|
size -= readbytes;
|
|
|
|
if (size == 0) {
|
|
c->read->ready = 1;
|
|
return bytes;
|
|
}
|
|
|
|
buf += readbytes;
|
|
|
|
continue;
|
|
}
|
|
|
|
if (n == SSL_READ_EARLY_DATA_FINISH) {
|
|
|
|
c->ssl->last = ngx_ssl_handle_recv(c, 1);
|
|
c->ssl->in_early = 0;
|
|
|
|
if (bytes) {
|
|
c->read->ready = 1;
|
|
return bytes;
|
|
}
|
|
|
|
return ngx_ssl_recv(c, buf, size);
|
|
}
|
|
|
|
/* SSL_READ_EARLY_DATA_ERROR */
|
|
|
|
c->ssl->last = ngx_ssl_handle_recv(c, 0);
|
|
|
|
if (bytes) {
|
|
if (c->ssl->last != NGX_AGAIN) {
|
|
c->read->ready = 1;
|
|
}
|
|
|
|
return bytes;
|
|
}
|
|
|
|
switch (c->ssl->last) {
|
|
|
|
case NGX_DONE:
|
|
c->read->ready = 0;
|
|
c->read->eof = 1;
|
|
return 0;
|
|
|
|
case NGX_ERROR:
|
|
c->read->ready = 0;
|
|
c->read->error = 1;
|
|
|
|
/* fall through */
|
|
|
|
case NGX_AGAIN:
|
|
return c->ssl->last;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_ssl_handle_recv(ngx_connection_t *c, int n)
|
|
{
|
|
int sslerr;
|
|
ngx_err_t err;
|
|
|
|
#ifndef SSL_OP_NO_RENEGOTIATION
|
|
|
|
if (c->ssl->renegotiation) {
|
|
/*
|
|
* disable renegotiation (CVE-2009-3555):
|
|
* OpenSSL (at least up to 0.9.8l) does not handle disabled
|
|
* renegotiation gracefully, so drop connection here
|
|
*/
|
|
|
|
ngx_log_error(NGX_LOG_NOTICE, c->log, 0, "SSL renegotiation disabled");
|
|
|
|
while (ERR_peek_error()) {
|
|
ngx_ssl_error(NGX_LOG_DEBUG, c->log, 0,
|
|
"ignoring stale global SSL error");
|
|
}
|
|
|
|
ERR_clear_error();
|
|
|
|
c->ssl->no_wait_shutdown = 1;
|
|
c->ssl->no_send_shutdown = 1;
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#endif
|
|
|
|
if (n > 0) {
|
|
|
|
if (c->ssl->saved_write_handler) {
|
|
|
|
c->write->handler = c->ssl->saved_write_handler;
|
|
c->ssl->saved_write_handler = NULL;
|
|
c->write->ready = 1;
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_post_event(c->write, &ngx_posted_events);
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
|
err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
|
if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
|
if (c->ssl->saved_write_handler) {
|
|
|
|
c->write->handler = c->ssl->saved_write_handler;
|
|
c->ssl->saved_write_handler = NULL;
|
|
c->write->ready = 1;
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_post_event(c->write, &ngx_posted_events);
|
|
}
|
|
|
|
c->read->ready = 0;
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_read: want write");
|
|
|
|
c->write->ready = 0;
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
/*
|
|
* we do not set the timer because there is already the read event timer
|
|
*/
|
|
|
|
if (c->ssl->saved_write_handler == NULL) {
|
|
c->ssl->saved_write_handler = c->write->handler;
|
|
c->write->handler = ngx_ssl_write_handler;
|
|
}
|
|
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
c->ssl->no_wait_shutdown = 1;
|
|
c->ssl->no_send_shutdown = 1;
|
|
|
|
if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"peer shutdown SSL cleanly");
|
|
return NGX_DONE;
|
|
}
|
|
|
|
ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_write_handler(ngx_event_t *wev)
|
|
{
|
|
ngx_connection_t *c;
|
|
|
|
c = wev->data;
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL write handler");
|
|
|
|
c->read->handler(c->read);
|
|
}
|
|
|
|
|
|
/*
|
|
* OpenSSL has no SSL_writev() so we copy several bufs into our 16K buffer
|
|
* before the SSL_write() call to decrease a SSL overhead.
|
|
*
|
|
* Besides for protocols such as HTTP it is possible to always buffer
|
|
* the output to decrease a SSL overhead some more.
|
|
*/
|
|
|
|
ngx_chain_t *
|
|
ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
|
|
{
|
|
int n;
|
|
ngx_uint_t flush;
|
|
ssize_t send, size, file_size;
|
|
ngx_buf_t *buf;
|
|
ngx_chain_t *cl;
|
|
|
|
if (!c->ssl->buffer) {
|
|
|
|
while (in) {
|
|
if (ngx_buf_special(in->buf)) {
|
|
in = in->next;
|
|
continue;
|
|
}
|
|
|
|
n = ngx_ssl_write(c, in->buf->pos, in->buf->last - in->buf->pos);
|
|
|
|
if (n == NGX_ERROR) {
|
|
return NGX_CHAIN_ERROR;
|
|
}
|
|
|
|
if (n == NGX_AGAIN) {
|
|
return in;
|
|
}
|
|
|
|
in->buf->pos += n;
|
|
|
|
if (in->buf->pos == in->buf->last) {
|
|
in = in->next;
|
|
}
|
|
}
|
|
|
|
return in;
|
|
}
|
|
|
|
|
|
/* the maximum limit size is the maximum int32_t value - the page size */
|
|
|
|
if (limit == 0 || limit > (off_t) (NGX_MAX_INT32_VALUE - ngx_pagesize)) {
|
|
limit = NGX_MAX_INT32_VALUE - ngx_pagesize;
|
|
}
|
|
|
|
buf = c->ssl->buf;
|
|
|
|
if (buf == NULL) {
|
|
buf = ngx_create_temp_buf(c->pool, c->ssl->buffer_size);
|
|
if (buf == NULL) {
|
|
return NGX_CHAIN_ERROR;
|
|
}
|
|
|
|
c->ssl->buf = buf;
|
|
}
|
|
|
|
if (buf->start == NULL) {
|
|
buf->start = ngx_palloc(c->pool, c->ssl->buffer_size);
|
|
if (buf->start == NULL) {
|
|
return NGX_CHAIN_ERROR;
|
|
}
|
|
|
|
buf->pos = buf->start;
|
|
buf->last = buf->start;
|
|
buf->end = buf->start + c->ssl->buffer_size;
|
|
}
|
|
|
|
send = buf->last - buf->pos;
|
|
flush = (in == NULL) ? 1 : buf->flush;
|
|
|
|
for ( ;; ) {
|
|
|
|
while (in && buf->last < buf->end && send < limit) {
|
|
if (in->buf->last_buf || in->buf->flush) {
|
|
flush = 1;
|
|
}
|
|
|
|
if (ngx_buf_special(in->buf)) {
|
|
in = in->next;
|
|
continue;
|
|
}
|
|
|
|
if (in->buf->in_file && c->ssl->sendfile) {
|
|
flush = 1;
|
|
break;
|
|
}
|
|
|
|
size = in->buf->last - in->buf->pos;
|
|
|
|
if (size > buf->end - buf->last) {
|
|
size = buf->end - buf->last;
|
|
}
|
|
|
|
if (send + size > limit) {
|
|
size = (ssize_t) (limit - send);
|
|
}
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL buf copy: %z", size);
|
|
|
|
ngx_memcpy(buf->last, in->buf->pos, size);
|
|
|
|
buf->last += size;
|
|
in->buf->pos += size;
|
|
send += size;
|
|
|
|
if (in->buf->pos == in->buf->last) {
|
|
in = in->next;
|
|
}
|
|
}
|
|
|
|
if (!flush && send < limit && buf->last < buf->end) {
|
|
break;
|
|
}
|
|
|
|
size = buf->last - buf->pos;
|
|
|
|
if (size == 0) {
|
|
|
|
if (in && in->buf->in_file && send < limit) {
|
|
|
|
/* coalesce the neighbouring file bufs */
|
|
|
|
cl = in;
|
|
file_size = (size_t) ngx_chain_coalesce_file(&cl, limit - send);
|
|
|
|
n = ngx_ssl_sendfile(c, in->buf, file_size);
|
|
|
|
if (n == NGX_ERROR) {
|
|
return NGX_CHAIN_ERROR;
|
|
}
|
|
|
|
if (n == NGX_AGAIN) {
|
|
break;
|
|
}
|
|
|
|
in = ngx_chain_update_sent(in, n);
|
|
|
|
send += n;
|
|
flush = 0;
|
|
|
|
continue;
|
|
}
|
|
|
|
buf->flush = 0;
|
|
c->buffered &= ~NGX_SSL_BUFFERED;
|
|
|
|
return in;
|
|
}
|
|
|
|
n = ngx_ssl_write(c, buf->pos, size);
|
|
|
|
if (n == NGX_ERROR) {
|
|
return NGX_CHAIN_ERROR;
|
|
}
|
|
|
|
if (n == NGX_AGAIN) {
|
|
break;
|
|
}
|
|
|
|
buf->pos += n;
|
|
|
|
if (n < size) {
|
|
break;
|
|
}
|
|
|
|
flush = 0;
|
|
|
|
buf->pos = buf->start;
|
|
buf->last = buf->start;
|
|
|
|
if (in == NULL || send >= limit) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
buf->flush = flush;
|
|
|
|
if (buf->pos < buf->last) {
|
|
c->buffered |= NGX_SSL_BUFFERED;
|
|
|
|
} else {
|
|
c->buffered &= ~NGX_SSL_BUFFERED;
|
|
}
|
|
|
|
return in;
|
|
}
|
|
|
|
|
|
ssize_t
|
|
ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size)
|
|
{
|
|
int n, sslerr;
|
|
ngx_err_t err;
|
|
|
|
#ifdef SSL_READ_EARLY_DATA_SUCCESS
|
|
if (c->ssl->in_early) {
|
|
return ngx_ssl_write_early(c, data, size);
|
|
}
|
|
#endif
|
|
|
|
ngx_ssl_clear_error(c->log);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %uz", size);
|
|
|
|
n = SSL_write(c->ssl->connection, data, size);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_write: %d", n);
|
|
|
|
if (n > 0) {
|
|
|
|
if (c->ssl->saved_read_handler) {
|
|
|
|
c->read->handler = c->ssl->saved_read_handler;
|
|
c->ssl->saved_read_handler = NULL;
|
|
c->read->ready = 1;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_post_event(c->read, &ngx_posted_events);
|
|
}
|
|
|
|
c->sent += n;
|
|
|
|
return n;
|
|
}
|
|
|
|
sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
|
if (sslerr == SSL_ERROR_ZERO_RETURN) {
|
|
|
|
/*
|
|
* OpenSSL 1.1.1 fails to return SSL_ERROR_SYSCALL if an error
|
|
* happens during SSL_write() after close_notify alert from the
|
|
* peer, and returns SSL_ERROR_ZERO_RETURN instead,
|
|
* https://git.openssl.org/?p=openssl.git;a=commitdiff;h=8051ab2
|
|
*/
|
|
|
|
sslerr = SSL_ERROR_SYSCALL;
|
|
}
|
|
|
|
err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
|
if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
|
if (c->ssl->saved_read_handler) {
|
|
|
|
c->read->handler = c->ssl->saved_read_handler;
|
|
c->ssl->saved_read_handler = NULL;
|
|
c->read->ready = 1;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_post_event(c->read, &ngx_posted_events);
|
|
}
|
|
|
|
c->write->ready = 0;
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_write: want read");
|
|
|
|
c->read->ready = 0;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
/*
|
|
* we do not set the timer because there is already
|
|
* the write event timer
|
|
*/
|
|
|
|
if (c->ssl->saved_read_handler == NULL) {
|
|
c->ssl->saved_read_handler = c->read->handler;
|
|
c->read->handler = ngx_ssl_read_handler;
|
|
}
|
|
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
c->ssl->no_wait_shutdown = 1;
|
|
c->ssl->no_send_shutdown = 1;
|
|
c->write->error = 1;
|
|
|
|
ngx_ssl_connection_error(c, sslerr, err, "SSL_write() failed");
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
|
|
#ifdef SSL_READ_EARLY_DATA_SUCCESS
|
|
|
|
static ssize_t
|
|
ngx_ssl_write_early(ngx_connection_t *c, u_char *data, size_t size)
|
|
{
|
|
int n, sslerr;
|
|
size_t written;
|
|
ngx_err_t err;
|
|
|
|
ngx_ssl_clear_error(c->log);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %uz", size);
|
|
|
|
written = 0;
|
|
|
|
n = SSL_write_early_data(c->ssl->connection, data, size, &written);
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_write_early_data: %d, %uz", n, written);
|
|
|
|
if (n > 0) {
|
|
|
|
if (c->ssl->saved_read_handler) {
|
|
|
|
c->read->handler = c->ssl->saved_read_handler;
|
|
c->ssl->saved_read_handler = NULL;
|
|
c->read->ready = 1;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_post_event(c->read, &ngx_posted_events);
|
|
}
|
|
|
|
if (c->ssl->write_blocked) {
|
|
c->ssl->write_blocked = 0;
|
|
ngx_post_event(c->read, &ngx_posted_events);
|
|
}
|
|
|
|
c->sent += written;
|
|
|
|
return written;
|
|
}
|
|
|
|
sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
|
err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
|
if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_write_early_data: want write");
|
|
|
|
if (c->ssl->saved_read_handler) {
|
|
|
|
c->read->handler = c->ssl->saved_read_handler;
|
|
c->ssl->saved_read_handler = NULL;
|
|
c->read->ready = 1;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_post_event(c->read, &ngx_posted_events);
|
|
}
|
|
|
|
/*
|
|
* OpenSSL 1.1.1a fails to handle SSL_read_early_data()
|
|
* if an SSL_write_early_data() call blocked on writing,
|
|
* see https://github.com/openssl/openssl/issues/7757
|
|
*/
|
|
|
|
c->ssl->write_blocked = 1;
|
|
|
|
c->write->ready = 0;
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_write_early_data: want read");
|
|
|
|
c->read->ready = 0;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
/*
|
|
* we do not set the timer because there is already
|
|
* the write event timer
|
|
*/
|
|
|
|
if (c->ssl->saved_read_handler == NULL) {
|
|
c->ssl->saved_read_handler = c->read->handler;
|
|
c->read->handler = ngx_ssl_read_handler;
|
|
}
|
|
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
c->ssl->no_wait_shutdown = 1;
|
|
c->ssl->no_send_shutdown = 1;
|
|
c->write->error = 1;
|
|
|
|
ngx_ssl_connection_error(c, sslerr, err, "SSL_write_early_data() failed");
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
static ssize_t
|
|
ngx_ssl_sendfile(ngx_connection_t *c, ngx_buf_t *file, size_t size)
|
|
{
|
|
#if (defined BIO_get_ktls_send && !NGX_WIN32)
|
|
|
|
int sslerr, flags;
|
|
ssize_t n;
|
|
ngx_err_t err;
|
|
|
|
ngx_ssl_clear_error(c->log);
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL to sendfile: @%O %uz",
|
|
file->file_pos, size);
|
|
|
|
ngx_set_errno(0);
|
|
|
|
#if (NGX_HAVE_SENDFILE_NODISKIO)
|
|
|
|
flags = (c->busy_count <= 2) ? SF_NODISKIO : 0;
|
|
|
|
if (file->file->directio) {
|
|
flags |= SF_NOCACHE;
|
|
}
|
|
|
|
#else
|
|
flags = 0;
|
|
#endif
|
|
|
|
n = SSL_sendfile(c->ssl->connection, file->file->fd, file->file_pos,
|
|
size, flags);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_sendfile: %z", n);
|
|
|
|
if (n > 0) {
|
|
|
|
if (c->ssl->saved_read_handler) {
|
|
|
|
c->read->handler = c->ssl->saved_read_handler;
|
|
c->ssl->saved_read_handler = NULL;
|
|
c->read->ready = 1;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_post_event(c->read, &ngx_posted_events);
|
|
}
|
|
|
|
#if (NGX_HAVE_SENDFILE_NODISKIO)
|
|
c->busy_count = 0;
|
|
#endif
|
|
|
|
c->sent += n;
|
|
|
|
return n;
|
|
}
|
|
|
|
if (n == 0) {
|
|
|
|
/*
|
|
* if sendfile returns zero, then someone has truncated the file,
|
|
* so the offset became beyond the end of the file
|
|
*/
|
|
|
|
ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
"SSL_sendfile() reported that \"%s\" was truncated at %O",
|
|
file->file->name.data, file->file_pos);
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
|
if (sslerr == SSL_ERROR_ZERO_RETURN) {
|
|
|
|
/*
|
|
* OpenSSL fails to return SSL_ERROR_SYSCALL if an error
|
|
* happens during writing after close_notify alert from the
|
|
* peer, and returns SSL_ERROR_ZERO_RETURN instead
|
|
*/
|
|
|
|
sslerr = SSL_ERROR_SYSCALL;
|
|
}
|
|
|
|
if (sslerr == SSL_ERROR_SSL
|
|
&& ERR_GET_REASON(ERR_peek_error()) == SSL_R_UNINITIALIZED
|
|
&& ngx_errno != 0)
|
|
{
|
|
/*
|
|
* OpenSSL fails to return SSL_ERROR_SYSCALL if an error
|
|
* happens in sendfile(), and returns SSL_ERROR_SSL with
|
|
* SSL_R_UNINITIALIZED reason instead
|
|
*/
|
|
|
|
sslerr = SSL_ERROR_SYSCALL;
|
|
}
|
|
|
|
err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
|
if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
|
if (c->ssl->saved_read_handler) {
|
|
|
|
c->read->handler = c->ssl->saved_read_handler;
|
|
c->ssl->saved_read_handler = NULL;
|
|
c->read->ready = 1;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_post_event(c->read, &ngx_posted_events);
|
|
}
|
|
|
|
#if (NGX_HAVE_SENDFILE_NODISKIO)
|
|
|
|
if (ngx_errno == EBUSY) {
|
|
c->busy_count++;
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_sendfile() busy, count:%d", c->busy_count);
|
|
|
|
if (c->write->posted) {
|
|
ngx_delete_posted_event(c->write);
|
|
}
|
|
|
|
ngx_post_event(c->write, &ngx_posted_next_events);
|
|
}
|
|
|
|
#endif
|
|
|
|
c->write->ready = 0;
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_sendfile: want read");
|
|
|
|
c->read->ready = 0;
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
/*
|
|
* we do not set the timer because there is already
|
|
* the write event timer
|
|
*/
|
|
|
|
if (c->ssl->saved_read_handler == NULL) {
|
|
c->ssl->saved_read_handler = c->read->handler;
|
|
c->read->handler = ngx_ssl_read_handler;
|
|
}
|
|
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
c->ssl->no_wait_shutdown = 1;
|
|
c->ssl->no_send_shutdown = 1;
|
|
c->write->error = 1;
|
|
|
|
ngx_ssl_connection_error(c, sslerr, err, "SSL_sendfile() failed");
|
|
|
|
#else
|
|
ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
"SSL_sendfile() not available");
|
|
#endif
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_read_handler(ngx_event_t *rev)
|
|
{
|
|
ngx_connection_t *c;
|
|
|
|
c = rev->data;
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL read handler");
|
|
|
|
c->write->handler(c->write);
|
|
}
|
|
|
|
|
|
void
|
|
ngx_ssl_free_buffer(ngx_connection_t *c)
|
|
{
|
|
if (c->ssl->buf && c->ssl->buf->start) {
|
|
if (ngx_pfree(c->pool, c->ssl->buf->start) == NGX_OK) {
|
|
c->ssl->buf->start = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_shutdown(ngx_connection_t *c)
|
|
{
|
|
int n, sslerr, mode;
|
|
ngx_int_t rc;
|
|
ngx_err_t err;
|
|
ngx_uint_t tries;
|
|
|
|
#if (NGX_QUIC)
|
|
if (c->quic) {
|
|
/* QUIC streams inherit SSL object */
|
|
return NGX_OK;
|
|
}
|
|
#endif
|
|
|
|
rc = NGX_OK;
|
|
|
|
ngx_ssl_ocsp_cleanup(c);
|
|
|
|
if (SSL_in_init(c->ssl->connection)) {
|
|
/*
|
|
* OpenSSL 1.0.2f complains if SSL_shutdown() is called during
|
|
* an SSL handshake, while previous versions always return 0.
|
|
* Avoid calling SSL_shutdown() if handshake wasn't completed.
|
|
*/
|
|
|
|
goto done;
|
|
}
|
|
|
|
if (c->timedout || c->error || c->buffered) {
|
|
mode = SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN;
|
|
SSL_set_quiet_shutdown(c->ssl->connection, 1);
|
|
|
|
} else {
|
|
mode = SSL_get_shutdown(c->ssl->connection);
|
|
|
|
if (c->ssl->no_wait_shutdown) {
|
|
mode |= SSL_RECEIVED_SHUTDOWN;
|
|
}
|
|
|
|
if (c->ssl->no_send_shutdown) {
|
|
mode |= SSL_SENT_SHUTDOWN;
|
|
}
|
|
|
|
if (c->ssl->no_wait_shutdown && c->ssl->no_send_shutdown) {
|
|
SSL_set_quiet_shutdown(c->ssl->connection, 1);
|
|
}
|
|
}
|
|
|
|
SSL_set_shutdown(c->ssl->connection, mode);
|
|
|
|
ngx_ssl_clear_error(c->log);
|
|
|
|
tries = 2;
|
|
|
|
for ( ;; ) {
|
|
|
|
/*
|
|
* For bidirectional shutdown, SSL_shutdown() needs to be called
|
|
* twice: first call sends the "close notify" alert and returns 0,
|
|
* second call waits for the peer's "close notify" alert.
|
|
*/
|
|
|
|
n = SSL_shutdown(c->ssl->connection);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_shutdown: %d", n);
|
|
|
|
if (n == 1) {
|
|
goto done;
|
|
}
|
|
|
|
if (n == 0 && tries-- > 1) {
|
|
continue;
|
|
}
|
|
|
|
/* before 0.9.8m SSL_shutdown() returned 0 instead of -1 on errors */
|
|
|
|
sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL_get_error: %d", sslerr);
|
|
|
|
if (sslerr == SSL_ERROR_WANT_READ || sslerr == SSL_ERROR_WANT_WRITE) {
|
|
c->read->handler = ngx_ssl_shutdown_handler;
|
|
c->write->handler = ngx_ssl_shutdown_handler;
|
|
|
|
if (sslerr == SSL_ERROR_WANT_READ) {
|
|
c->read->ready = 0;
|
|
|
|
} else {
|
|
c->write->ready = 0;
|
|
}
|
|
|
|
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
goto failed;
|
|
}
|
|
|
|
if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
goto failed;
|
|
}
|
|
|
|
ngx_add_timer(c->read, 3000);
|
|
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
goto done;
|
|
}
|
|
|
|
err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
|
ngx_ssl_connection_error(c, sslerr, err, "SSL_shutdown() failed");
|
|
|
|
break;
|
|
}
|
|
|
|
failed:
|
|
|
|
rc = NGX_ERROR;
|
|
|
|
done:
|
|
|
|
if (c->ssl->shutdown_without_free) {
|
|
c->ssl->shutdown_without_free = 0;
|
|
c->recv = ngx_recv;
|
|
return rc;
|
|
}
|
|
|
|
SSL_free(c->ssl->connection);
|
|
c->ssl = NULL;
|
|
c->recv = ngx_recv;
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_shutdown_handler(ngx_event_t *ev)
|
|
{
|
|
ngx_connection_t *c;
|
|
ngx_connection_handler_pt handler;
|
|
|
|
c = ev->data;
|
|
handler = c->ssl->handler;
|
|
|
|
if (ev->timedout) {
|
|
c->timedout = 1;
|
|
}
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "SSL shutdown handler");
|
|
|
|
if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
return;
|
|
}
|
|
|
|
handler(c);
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
|
|
char *text)
|
|
{
|
|
int n;
|
|
ngx_uint_t level;
|
|
|
|
level = NGX_LOG_CRIT;
|
|
|
|
if (sslerr == SSL_ERROR_SYSCALL) {
|
|
|
|
if (err == NGX_ECONNRESET
|
|
#if (NGX_WIN32)
|
|
|| err == NGX_ECONNABORTED
|
|
#endif
|
|
|| err == NGX_EPIPE
|
|
|| err == NGX_ENOTCONN
|
|
|| err == NGX_ETIMEDOUT
|
|
|| err == NGX_ECONNREFUSED
|
|
|| err == NGX_ENETDOWN
|
|
|| err == NGX_ENETUNREACH
|
|
|| err == NGX_EHOSTDOWN
|
|
|| err == NGX_EHOSTUNREACH)
|
|
{
|
|
switch (c->log_error) {
|
|
|
|
case NGX_ERROR_IGNORE_ECONNRESET:
|
|
case NGX_ERROR_INFO:
|
|
level = NGX_LOG_INFO;
|
|
break;
|
|
|
|
case NGX_ERROR_ERR:
|
|
level = NGX_LOG_ERR;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
} else if (sslerr == SSL_ERROR_SSL) {
|
|
|
|
n = ERR_GET_REASON(ERR_peek_last_error());
|
|
|
|
/* handshake failures */
|
|
if (n == SSL_R_BAD_CHANGE_CIPHER_SPEC /* 103 */
|
|
#ifdef SSL_R_NO_SUITABLE_KEY_SHARE
|
|
|| n == SSL_R_NO_SUITABLE_KEY_SHARE /* 101 */
|
|
#endif
|
|
#ifdef SSL_R_BAD_ALERT
|
|
|| n == SSL_R_BAD_ALERT /* 102 */
|
|
#endif
|
|
#ifdef SSL_R_BAD_KEY_SHARE
|
|
|| n == SSL_R_BAD_KEY_SHARE /* 108 */
|
|
#endif
|
|
#ifdef SSL_R_BAD_EXTENSION
|
|
|| n == SSL_R_BAD_EXTENSION /* 110 */
|
|
#endif
|
|
|| n == SSL_R_BAD_DIGEST_LENGTH /* 111 */
|
|
#ifdef SSL_R_MISSING_SIGALGS_EXTENSION
|
|
|| n == SSL_R_MISSING_SIGALGS_EXTENSION /* 112 */
|
|
#endif
|
|
|| n == SSL_R_BAD_PACKET_LENGTH /* 115 */
|
|
#ifdef SSL_R_NO_SUITABLE_SIGNATURE_ALGORITHM
|
|
|| n == SSL_R_NO_SUITABLE_SIGNATURE_ALGORITHM /* 118 */
|
|
#endif
|
|
#ifdef SSL_R_BAD_KEY_UPDATE
|
|
|| n == SSL_R_BAD_KEY_UPDATE /* 122 */
|
|
#endif
|
|
|| n == SSL_R_BLOCK_CIPHER_PAD_IS_WRONG /* 129 */
|
|
|| n == SSL_R_CCS_RECEIVED_EARLY /* 133 */
|
|
#ifdef SSL_R_DECODE_ERROR
|
|
|| n == SSL_R_DECODE_ERROR /* 137 */
|
|
#endif
|
|
#ifdef SSL_R_DATA_BETWEEN_CCS_AND_FINISHED
|
|
|| n == SSL_R_DATA_BETWEEN_CCS_AND_FINISHED /* 145 */
|
|
#endif
|
|
|| n == SSL_R_DATA_LENGTH_TOO_LONG /* 146 */
|
|
|| n == SSL_R_DIGEST_CHECK_FAILED /* 149 */
|
|
|| n == SSL_R_ENCRYPTED_LENGTH_TOO_LONG /* 150 */
|
|
|| n == SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST /* 151 */
|
|
|| n == SSL_R_EXCESSIVE_MESSAGE_SIZE /* 152 */
|
|
#ifdef SSL_R_GOT_A_FIN_BEFORE_A_CCS
|
|
|| n == SSL_R_GOT_A_FIN_BEFORE_A_CCS /* 154 */
|
|
#endif
|
|
|| n == SSL_R_HTTPS_PROXY_REQUEST /* 155 */
|
|
|| n == SSL_R_HTTP_REQUEST /* 156 */
|
|
|| n == SSL_R_LENGTH_MISMATCH /* 159 */
|
|
#ifdef SSL_R_LENGTH_TOO_SHORT
|
|
|| n == SSL_R_LENGTH_TOO_SHORT /* 160 */
|
|
#endif
|
|
#ifdef SSL_R_NO_RENEGOTIATION
|
|
|| n == SSL_R_NO_RENEGOTIATION /* 182 */
|
|
#endif
|
|
#ifdef SSL_R_NO_CIPHERS_PASSED
|
|
|| n == SSL_R_NO_CIPHERS_PASSED /* 182 */
|
|
#endif
|
|
|| n == SSL_R_NO_CIPHERS_SPECIFIED /* 183 */
|
|
#ifdef SSL_R_BAD_CIPHER
|
|
|| n == SSL_R_BAD_CIPHER /* 186 */
|
|
#endif
|
|
|| n == SSL_R_NO_COMPRESSION_SPECIFIED /* 187 */
|
|
|| n == SSL_R_NO_SHARED_CIPHER /* 193 */
|
|
#ifdef SSL_R_PACKET_LENGTH_TOO_LONG
|
|
|| n == SSL_R_PACKET_LENGTH_TOO_LONG /* 198 */
|
|
#endif
|
|
|| n == SSL_R_RECORD_LENGTH_MISMATCH /* 213 */
|
|
#ifdef SSL_R_TOO_MANY_WARNING_ALERTS
|
|
|| n == SSL_R_TOO_MANY_WARNING_ALERTS /* 220 */
|
|
#endif
|
|
#ifdef SSL_R_CLIENTHELLO_TLSEXT
|
|
|| n == SSL_R_CLIENTHELLO_TLSEXT /* 226 */
|
|
#endif
|
|
#ifdef SSL_R_PARSE_TLSEXT
|
|
|| n == SSL_R_PARSE_TLSEXT /* 227 */
|
|
#endif
|
|
#ifdef SSL_R_CALLBACK_FAILED
|
|
|| n == SSL_R_CALLBACK_FAILED /* 234 */
|
|
#endif
|
|
#ifdef SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG
|
|
|| n == SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG /* 234 */
|
|
#endif
|
|
#ifdef SSL_R_NO_APPLICATION_PROTOCOL
|
|
|| n == SSL_R_NO_APPLICATION_PROTOCOL /* 235 */
|
|
#endif
|
|
|| n == SSL_R_UNEXPECTED_MESSAGE /* 244 */
|
|
|| n == SSL_R_UNEXPECTED_RECORD /* 245 */
|
|
|| n == SSL_R_UNKNOWN_ALERT_TYPE /* 246 */
|
|
|| n == SSL_R_UNKNOWN_PROTOCOL /* 252 */
|
|
#ifdef SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS
|
|
|| n == SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS /* 253 */
|
|
#endif
|
|
#ifdef SSL_R_INVALID_COMPRESSION_LIST
|
|
|| n == SSL_R_INVALID_COMPRESSION_LIST /* 256 */
|
|
#endif
|
|
#ifdef SSL_R_MISSING_KEY_SHARE
|
|
|| n == SSL_R_MISSING_KEY_SHARE /* 258 */
|
|
#endif
|
|
|| n == SSL_R_UNSUPPORTED_PROTOCOL /* 258 */
|
|
#ifdef SSL_R_NO_SHARED_GROUP
|
|
|| n == SSL_R_NO_SHARED_GROUP /* 266 */
|
|
#endif
|
|
|| n == SSL_R_WRONG_VERSION_NUMBER /* 267 */
|
|
#ifdef SSL_R_TOO_MUCH_SKIPPED_EARLY_DATA
|
|
|| n == SSL_R_TOO_MUCH_SKIPPED_EARLY_DATA /* 270 */
|
|
#endif
|
|
|| n == SSL_R_BAD_LENGTH /* 271 */
|
|
|| n == SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC /* 281 */
|
|
#ifdef SSL_R_APPLICATION_DATA_AFTER_CLOSE_NOTIFY
|
|
|| n == SSL_R_APPLICATION_DATA_AFTER_CLOSE_NOTIFY /* 291 */
|
|
#endif
|
|
#ifdef SSL_R_APPLICATION_DATA_ON_SHUTDOWN
|
|
|| n == SSL_R_APPLICATION_DATA_ON_SHUTDOWN /* 291 */
|
|
#endif
|
|
#ifdef SSL_R_BAD_LEGACY_VERSION
|
|
|| n == SSL_R_BAD_LEGACY_VERSION /* 292 */
|
|
#endif
|
|
#ifdef SSL_R_MIXED_HANDSHAKE_AND_NON_HANDSHAKE_DATA
|
|
|| n == SSL_R_MIXED_HANDSHAKE_AND_NON_HANDSHAKE_DATA /* 293 */
|
|
#endif
|
|
#ifdef SSL_R_RECORD_TOO_SMALL
|
|
|| n == SSL_R_RECORD_TOO_SMALL /* 298 */
|
|
#endif
|
|
#ifdef SSL_R_SSL3_SESSION_ID_TOO_LONG
|
|
|| n == SSL_R_SSL3_SESSION_ID_TOO_LONG /* 300 */
|
|
#endif
|
|
#ifdef SSL_R_BAD_ECPOINT
|
|
|| n == SSL_R_BAD_ECPOINT /* 306 */
|
|
#endif
|
|
#ifdef SSL_R_RENEGOTIATE_EXT_TOO_LONG
|
|
|| n == SSL_R_RENEGOTIATE_EXT_TOO_LONG /* 335 */
|
|
|| n == SSL_R_RENEGOTIATION_ENCODING_ERR /* 336 */
|
|
|| n == SSL_R_RENEGOTIATION_MISMATCH /* 337 */
|
|
#endif
|
|
#ifdef SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED
|
|
|| n == SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED /* 338 */
|
|
#endif
|
|
#ifdef SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING
|
|
|| n == SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING /* 345 */
|
|
#endif
|
|
#ifdef SSL_R_INAPPROPRIATE_FALLBACK
|
|
|| n == SSL_R_INAPPROPRIATE_FALLBACK /* 373 */
|
|
#endif
|
|
#ifdef SSL_R_NO_SHARED_SIGNATURE_ALGORITHMS
|
|
|| n == SSL_R_NO_SHARED_SIGNATURE_ALGORITHMS /* 376 */
|
|
#endif
|
|
#ifdef SSL_R_NO_SHARED_SIGATURE_ALGORITHMS
|
|
|| n == SSL_R_NO_SHARED_SIGATURE_ALGORITHMS /* 376 */
|
|
#endif
|
|
#ifdef SSL_R_CERT_CB_ERROR
|
|
|| n == SSL_R_CERT_CB_ERROR /* 377 */
|
|
#endif
|
|
#ifdef SSL_R_VERSION_TOO_LOW
|
|
|| n == SSL_R_VERSION_TOO_LOW /* 396 */
|
|
#endif
|
|
#ifdef SSL_R_TOO_MANY_WARN_ALERTS
|
|
|| n == SSL_R_TOO_MANY_WARN_ALERTS /* 409 */
|
|
#endif
|
|
#ifdef SSL_R_BAD_RECORD_TYPE
|
|
|| n == SSL_R_BAD_RECORD_TYPE /* 443 */
|
|
#endif
|
|
|| n == 1000 /* SSL_R_SSLV3_ALERT_CLOSE_NOTIFY */
|
|
#ifdef SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE
|
|
|| n == SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE /* 1010 */
|
|
|| n == SSL_R_SSLV3_ALERT_BAD_RECORD_MAC /* 1020 */
|
|
|| n == SSL_R_TLSV1_ALERT_DECRYPTION_FAILED /* 1021 */
|
|
|| n == SSL_R_TLSV1_ALERT_RECORD_OVERFLOW /* 1022 */
|
|
|| n == SSL_R_SSLV3_ALERT_DECOMPRESSION_FAILURE /* 1030 */
|
|
|| n == SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE /* 1040 */
|
|
|| n == SSL_R_SSLV3_ALERT_NO_CERTIFICATE /* 1041 */
|
|
|| n == SSL_R_SSLV3_ALERT_BAD_CERTIFICATE /* 1042 */
|
|
|| n == SSL_R_SSLV3_ALERT_UNSUPPORTED_CERTIFICATE /* 1043 */
|
|
|| n == SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED /* 1044 */
|
|
|| n == SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED /* 1045 */
|
|
|| n == SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN /* 1046 */
|
|
|| n == SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER /* 1047 */
|
|
|| n == SSL_R_TLSV1_ALERT_UNKNOWN_CA /* 1048 */
|
|
|| n == SSL_R_TLSV1_ALERT_ACCESS_DENIED /* 1049 */
|
|
|| n == SSL_R_TLSV1_ALERT_DECODE_ERROR /* 1050 */
|
|
|| n == SSL_R_TLSV1_ALERT_DECRYPT_ERROR /* 1051 */
|
|
|| n == SSL_R_TLSV1_ALERT_EXPORT_RESTRICTION /* 1060 */
|
|
|| n == SSL_R_TLSV1_ALERT_PROTOCOL_VERSION /* 1070 */
|
|
|| n == SSL_R_TLSV1_ALERT_INSUFFICIENT_SECURITY /* 1071 */
|
|
|| n == SSL_R_TLSV1_ALERT_INTERNAL_ERROR /* 1080 */
|
|
|| n == SSL_R_TLSV1_ALERT_USER_CANCELLED /* 1090 */
|
|
|| n == SSL_R_TLSV1_ALERT_NO_RENEGOTIATION /* 1100 */
|
|
#endif
|
|
)
|
|
{
|
|
switch (c->log_error) {
|
|
|
|
case NGX_ERROR_IGNORE_ECONNRESET:
|
|
case NGX_ERROR_INFO:
|
|
level = NGX_LOG_INFO;
|
|
break;
|
|
|
|
case NGX_ERROR_ERR:
|
|
level = NGX_LOG_ERR;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ngx_ssl_error(level, c->log, err, text);
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_clear_error(ngx_log_t *log)
|
|
{
|
|
while (ERR_peek_error()) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, log, 0, "ignoring stale global SSL error");
|
|
}
|
|
|
|
ERR_clear_error();
|
|
}
|
|
|
|
|
|
void ngx_cdecl
|
|
ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, char *fmt, ...)
|
|
{
|
|
int flags;
|
|
u_long n;
|
|
va_list args;
|
|
u_char *p, *last;
|
|
u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
const char *data;
|
|
|
|
last = errstr + NGX_MAX_CONF_ERRSTR;
|
|
|
|
va_start(args, fmt);
|
|
p = ngx_vslprintf(errstr, last - 1, fmt, args);
|
|
va_end(args);
|
|
|
|
if (ERR_peek_error()) {
|
|
p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);
|
|
|
|
for ( ;; ) {
|
|
|
|
n = ERR_peek_error_data(&data, &flags);
|
|
|
|
if (n == 0) {
|
|
break;
|
|
}
|
|
|
|
/* ERR_error_string_n() requires at least one byte */
|
|
|
|
if (p >= last - 1) {
|
|
goto next;
|
|
}
|
|
|
|
*p++ = ' ';
|
|
|
|
ERR_error_string_n(n, (char *) p, last - p);
|
|
|
|
while (p < last && *p) {
|
|
p++;
|
|
}
|
|
|
|
if (p < last && *data && (flags & ERR_TXT_STRING)) {
|
|
*p++ = ':';
|
|
p = ngx_cpystrn(p, (u_char *) data, last - p);
|
|
}
|
|
|
|
next:
|
|
|
|
(void) ERR_get_error();
|
|
}
|
|
|
|
if (p < last) {
|
|
*p++ = ')';
|
|
}
|
|
}
|
|
|
|
ngx_log_error(level, log, err, "%*s", p - errstr, errstr);
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
|
|
ngx_array_t *certificates, ssize_t builtin_session_cache,
|
|
ngx_shm_zone_t *shm_zone, time_t timeout)
|
|
{
|
|
long cache_mode;
|
|
|
|
SSL_CTX_set_timeout(ssl->ctx, (long) timeout);
|
|
|
|
if (ngx_ssl_session_id_context(ssl, sess_ctx, certificates) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (builtin_session_cache == NGX_SSL_NO_SCACHE) {
|
|
SSL_CTX_set_session_cache_mode(ssl->ctx, SSL_SESS_CACHE_OFF);
|
|
return NGX_OK;
|
|
}
|
|
|
|
if (builtin_session_cache == NGX_SSL_NONE_SCACHE) {
|
|
|
|
/*
|
|
* If the server explicitly says that it does not support
|
|
* session reuse (see SSL_SESS_CACHE_OFF above), then
|
|
* Outlook Express fails to upload a sent email to
|
|
* the Sent Items folder on the IMAP server via a separate IMAP
|
|
* connection in the background. Therefore we have a special
|
|
* mode (SSL_SESS_CACHE_SERVER|SSL_SESS_CACHE_NO_INTERNAL_STORE)
|
|
* where the server pretends that it supports session reuse,
|
|
* but it does not actually store any session.
|
|
*/
|
|
|
|
SSL_CTX_set_session_cache_mode(ssl->ctx,
|
|
SSL_SESS_CACHE_SERVER
|
|
|SSL_SESS_CACHE_NO_AUTO_CLEAR
|
|
|SSL_SESS_CACHE_NO_INTERNAL_STORE);
|
|
|
|
SSL_CTX_sess_set_cache_size(ssl->ctx, 1);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
cache_mode = SSL_SESS_CACHE_SERVER;
|
|
|
|
if (shm_zone && builtin_session_cache == NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
cache_mode |= SSL_SESS_CACHE_NO_INTERNAL;
|
|
}
|
|
|
|
SSL_CTX_set_session_cache_mode(ssl->ctx, cache_mode);
|
|
|
|
if (builtin_session_cache != NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
|
if (builtin_session_cache != NGX_SSL_DFLT_BUILTIN_SCACHE) {
|
|
SSL_CTX_sess_set_cache_size(ssl->ctx, builtin_session_cache);
|
|
}
|
|
}
|
|
|
|
if (shm_zone) {
|
|
SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_session);
|
|
SSL_CTX_sess_set_get_cb(ssl->ctx, ngx_ssl_get_cached_session);
|
|
SSL_CTX_sess_set_remove_cb(ssl->ctx, ngx_ssl_remove_session);
|
|
|
|
if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_session_cache_index, shm_zone)
|
|
== 0)
|
|
{
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_set_ex_data() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_ssl_session_id_context(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
|
|
ngx_array_t *certificates)
|
|
{
|
|
int n, i;
|
|
X509 *cert;
|
|
X509_NAME *name;
|
|
ngx_str_t *certs;
|
|
ngx_uint_t k;
|
|
EVP_MD_CTX *md;
|
|
unsigned int len;
|
|
STACK_OF(X509_NAME) *list;
|
|
u_char buf[EVP_MAX_MD_SIZE];
|
|
|
|
/*
|
|
* Session ID context is set based on the string provided,
|
|
* the server certificates, and the client CA list.
|
|
*/
|
|
|
|
md = EVP_MD_CTX_create();
|
|
if (md == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (EVP_DigestInit_ex(md, EVP_sha1(), NULL) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"EVP_DigestInit_ex() failed");
|
|
goto failed;
|
|
}
|
|
|
|
if (EVP_DigestUpdate(md, sess_ctx->data, sess_ctx->len) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"EVP_DigestUpdate() failed");
|
|
goto failed;
|
|
}
|
|
|
|
for (cert = SSL_CTX_get_ex_data(ssl->ctx, ngx_ssl_certificate_index);
|
|
cert;
|
|
cert = X509_get_ex_data(cert, ngx_ssl_next_certificate_index))
|
|
{
|
|
if (X509_digest(cert, EVP_sha1(), buf, &len) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"X509_digest() failed");
|
|
goto failed;
|
|
}
|
|
|
|
if (EVP_DigestUpdate(md, buf, len) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"EVP_DigestUpdate() failed");
|
|
goto failed;
|
|
}
|
|
}
|
|
|
|
if (SSL_CTX_get_ex_data(ssl->ctx, ngx_ssl_certificate_index) == NULL
|
|
&& certificates != NULL)
|
|
{
|
|
/*
|
|
* If certificates are loaded dynamically, we use certificate
|
|
* names as specified in the configuration (with variables).
|
|
*/
|
|
|
|
certs = certificates->elts;
|
|
for (k = 0; k < certificates->nelts; k++) {
|
|
|
|
if (EVP_DigestUpdate(md, certs[k].data, certs[k].len) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"EVP_DigestUpdate() failed");
|
|
goto failed;
|
|
}
|
|
}
|
|
}
|
|
|
|
list = SSL_CTX_get_client_CA_list(ssl->ctx);
|
|
|
|
if (list != NULL) {
|
|
n = sk_X509_NAME_num(list);
|
|
|
|
for (i = 0; i < n; i++) {
|
|
name = sk_X509_NAME_value(list, i);
|
|
|
|
if (X509_NAME_digest(name, EVP_sha1(), buf, &len) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"X509_NAME_digest() failed");
|
|
goto failed;
|
|
}
|
|
|
|
if (EVP_DigestUpdate(md, buf, len) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"EVP_DigestUpdate() failed");
|
|
goto failed;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (EVP_DigestFinal_ex(md, buf, &len) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"EVP_DigestFinal_ex() failed");
|
|
goto failed;
|
|
}
|
|
|
|
EVP_MD_CTX_destroy(md);
|
|
|
|
if (SSL_CTX_set_session_id_context(ssl->ctx, buf, len) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_set_session_id_context() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
return NGX_OK;
|
|
|
|
failed:
|
|
|
|
EVP_MD_CTX_destroy(md);
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
|
|
{
|
|
size_t len;
|
|
ngx_slab_pool_t *shpool;
|
|
ngx_ssl_session_cache_t *cache;
|
|
|
|
if (data) {
|
|
shm_zone->data = data;
|
|
return NGX_OK;
|
|
}
|
|
|
|
shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
|
if (shm_zone->shm.exists) {
|
|
shm_zone->data = shpool->data;
|
|
return NGX_OK;
|
|
}
|
|
|
|
cache = ngx_slab_alloc(shpool, sizeof(ngx_ssl_session_cache_t));
|
|
if (cache == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
shpool->data = cache;
|
|
shm_zone->data = cache;
|
|
|
|
ngx_rbtree_init(&cache->session_rbtree, &cache->sentinel,
|
|
ngx_ssl_session_rbtree_insert_value);
|
|
|
|
ngx_queue_init(&cache->expire_queue);
|
|
|
|
cache->ticket_keys[0].expire = 0;
|
|
cache->ticket_keys[1].expire = 0;
|
|
cache->ticket_keys[2].expire = 0;
|
|
|
|
cache->fail_time = 0;
|
|
|
|
len = sizeof(" in SSL session shared cache \"\"") + shm_zone->shm.name.len;
|
|
|
|
shpool->log_ctx = ngx_slab_alloc(shpool, len);
|
|
if (shpool->log_ctx == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_sprintf(shpool->log_ctx, " in SSL session shared cache \"%V\"%Z",
|
|
&shm_zone->shm.name);
|
|
|
|
shpool->log_nomem = 0;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
/*
|
|
* The length of the session id is 16 bytes for SSLv2 sessions and
|
|
* between 1 and 32 bytes for SSLv3 and TLS, typically 32 bytes.
|
|
* Typical length of the external ASN1 representation of a session
|
|
* is about 150 bytes plus SNI server name.
|
|
*
|
|
* On 32-bit platforms we allocate an rbtree node, a session id, and
|
|
* an ASN1 representation in a single allocation, it typically takes
|
|
* 256 bytes.
|
|
*
|
|
* On 64-bit platforms we allocate separately an rbtree node + session_id,
|
|
* and an ASN1 representation, they take accordingly 128 and 256 bytes.
|
|
*
|
|
* OpenSSL's i2d_SSL_SESSION() and d2i_SSL_SESSION are slow,
|
|
* so they are outside the code locked by shared pool mutex
|
|
*/
|
|
|
|
static int
|
|
ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
|
|
{
|
|
int len;
|
|
u_char *p, *session_id;
|
|
size_t n;
|
|
uint32_t hash;
|
|
SSL_CTX *ssl_ctx;
|
|
unsigned int session_id_length;
|
|
ngx_shm_zone_t *shm_zone;
|
|
ngx_connection_t *c;
|
|
ngx_slab_pool_t *shpool;
|
|
ngx_ssl_sess_id_t *sess_id;
|
|
ngx_ssl_session_cache_t *cache;
|
|
u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
|
#ifdef TLS1_3_VERSION
|
|
|
|
/*
|
|
* OpenSSL tries to save TLSv1.3 sessions into session cache
|
|
* even when using tickets for stateless session resumption,
|
|
* "because some applications just want to know about the creation
|
|
* of a session"; do not cache such sessions
|
|
*/
|
|
|
|
if (SSL_version(ssl_conn) == TLS1_3_VERSION
|
|
&& (SSL_get_options(ssl_conn) & SSL_OP_NO_TICKET) == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
len = i2d_SSL_SESSION(sess, NULL);
|
|
|
|
/* do not cache too big session */
|
|
|
|
if (len > NGX_SSL_MAX_SESSION_SIZE) {
|
|
return 0;
|
|
}
|
|
|
|
p = buf;
|
|
i2d_SSL_SESSION(sess, &p);
|
|
|
|
session_id = (u_char *) SSL_SESSION_get_id(sess, &session_id_length);
|
|
|
|
/* do not cache sessions with too long session id */
|
|
|
|
if (session_id_length > 32) {
|
|
return 0;
|
|
}
|
|
|
|
c = ngx_ssl_get_connection(ssl_conn);
|
|
|
|
ssl_ctx = c->ssl->session_ctx;
|
|
shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
|
|
|
|
cache = shm_zone->data;
|
|
shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
|
ngx_shmtx_lock(&shpool->mutex);
|
|
|
|
/* drop one or two expired sessions */
|
|
ngx_ssl_expire_sessions(cache, shpool, 1);
|
|
|
|
#if (NGX_PTR_SIZE == 8)
|
|
n = sizeof(ngx_ssl_sess_id_t);
|
|
#else
|
|
n = offsetof(ngx_ssl_sess_id_t, session) + len;
|
|
#endif
|
|
|
|
sess_id = ngx_slab_alloc_locked(shpool, n);
|
|
|
|
if (sess_id == NULL) {
|
|
|
|
/* drop the oldest non-expired session and try once more */
|
|
|
|
ngx_ssl_expire_sessions(cache, shpool, 0);
|
|
|
|
sess_id = ngx_slab_alloc_locked(shpool, n);
|
|
|
|
if (sess_id == NULL) {
|
|
goto failed;
|
|
}
|
|
}
|
|
|
|
#if (NGX_PTR_SIZE == 8)
|
|
|
|
sess_id->session = ngx_slab_alloc_locked(shpool, len);
|
|
|
|
if (sess_id->session == NULL) {
|
|
|
|
/* drop the oldest non-expired session and try once more */
|
|
|
|
ngx_ssl_expire_sessions(cache, shpool, 0);
|
|
|
|
sess_id->session = ngx_slab_alloc_locked(shpool, len);
|
|
|
|
if (sess_id->session == NULL) {
|
|
goto failed;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
ngx_memcpy(sess_id->session, buf, len);
|
|
ngx_memcpy(sess_id->id, session_id, session_id_length);
|
|
|
|
hash = ngx_crc32_short(session_id, session_id_length);
|
|
|
|
ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"ssl new session: %08XD:%ud:%d",
|
|
hash, session_id_length, len);
|
|
|
|
sess_id->node.key = hash;
|
|
sess_id->node.data = (u_char) session_id_length;
|
|
sess_id->len = len;
|
|
|
|
sess_id->expire = ngx_time() + SSL_CTX_get_timeout(ssl_ctx);
|
|
|
|
ngx_queue_insert_head(&cache->expire_queue, &sess_id->queue);
|
|
|
|
ngx_rbtree_insert(&cache->session_rbtree, &sess_id->node);
|
|
|
|
ngx_shmtx_unlock(&shpool->mutex);
|
|
|
|
return 0;
|
|
|
|
failed:
|
|
|
|
if (sess_id) {
|
|
ngx_slab_free_locked(shpool, sess_id);
|
|
}
|
|
|
|
ngx_shmtx_unlock(&shpool->mutex);
|
|
|
|
if (cache->fail_time != ngx_time()) {
|
|
cache->fail_time = ngx_time();
|
|
ngx_log_error(NGX_LOG_WARN, c->log, 0,
|
|
"could not allocate new session%s", shpool->log_ctx);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static ngx_ssl_session_t *
|
|
ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn,
|
|
#if OPENSSL_VERSION_NUMBER >= 0x10100003L
|
|
const
|
|
#endif
|
|
u_char *id, int len, int *copy)
|
|
{
|
|
size_t slen;
|
|
uint32_t hash;
|
|
ngx_int_t rc;
|
|
const u_char *p;
|
|
ngx_shm_zone_t *shm_zone;
|
|
ngx_slab_pool_t *shpool;
|
|
ngx_rbtree_node_t *node, *sentinel;
|
|
ngx_ssl_session_t *sess;
|
|
ngx_ssl_sess_id_t *sess_id;
|
|
ngx_ssl_session_cache_t *cache;
|
|
u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
ngx_connection_t *c;
|
|
|
|
hash = ngx_crc32_short((u_char *) (uintptr_t) id, (size_t) len);
|
|
*copy = 0;
|
|
|
|
c = ngx_ssl_get_connection(ssl_conn);
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"ssl get session: %08XD:%d", hash, len);
|
|
|
|
shm_zone = SSL_CTX_get_ex_data(c->ssl->session_ctx,
|
|
ngx_ssl_session_cache_index);
|
|
|
|
cache = shm_zone->data;
|
|
|
|
sess = NULL;
|
|
|
|
shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
|
ngx_shmtx_lock(&shpool->mutex);
|
|
|
|
node = cache->session_rbtree.root;
|
|
sentinel = cache->session_rbtree.sentinel;
|
|
|
|
while (node != sentinel) {
|
|
|
|
if (hash < node->key) {
|
|
node = node->left;
|
|
continue;
|
|
}
|
|
|
|
if (hash > node->key) {
|
|
node = node->right;
|
|
continue;
|
|
}
|
|
|
|
/* hash == node->key */
|
|
|
|
sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
|
rc = ngx_memn2cmp((u_char *) (uintptr_t) id, sess_id->id,
|
|
(size_t) len, (size_t) node->data);
|
|
|
|
if (rc == 0) {
|
|
|
|
if (sess_id->expire > ngx_time()) {
|
|
slen = sess_id->len;
|
|
|
|
ngx_memcpy(buf, sess_id->session, slen);
|
|
|
|
ngx_shmtx_unlock(&shpool->mutex);
|
|
|
|
p = buf;
|
|
sess = d2i_SSL_SESSION(NULL, &p, slen);
|
|
|
|
return sess;
|
|
}
|
|
|
|
ngx_queue_remove(&sess_id->queue);
|
|
|
|
ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
|
|
ngx_explicit_memzero(sess_id->session, sess_id->len);
|
|
|
|
#if (NGX_PTR_SIZE == 8)
|
|
ngx_slab_free_locked(shpool, sess_id->session);
|
|
#endif
|
|
ngx_slab_free_locked(shpool, sess_id);
|
|
|
|
sess = NULL;
|
|
|
|
goto done;
|
|
}
|
|
|
|
node = (rc < 0) ? node->left : node->right;
|
|
}
|
|
|
|
done:
|
|
|
|
ngx_shmtx_unlock(&shpool->mutex);
|
|
|
|
return sess;
|
|
}
|
|
|
|
|
|
void
|
|
ngx_ssl_remove_cached_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
{
|
|
SSL_CTX_remove_session(ssl, sess);
|
|
|
|
ngx_ssl_remove_session(ssl, sess);
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
{
|
|
u_char *id;
|
|
uint32_t hash;
|
|
ngx_int_t rc;
|
|
unsigned int len;
|
|
ngx_shm_zone_t *shm_zone;
|
|
ngx_slab_pool_t *shpool;
|
|
ngx_rbtree_node_t *node, *sentinel;
|
|
ngx_ssl_sess_id_t *sess_id;
|
|
ngx_ssl_session_cache_t *cache;
|
|
|
|
shm_zone = SSL_CTX_get_ex_data(ssl, ngx_ssl_session_cache_index);
|
|
|
|
if (shm_zone == NULL) {
|
|
return;
|
|
}
|
|
|
|
cache = shm_zone->data;
|
|
|
|
id = (u_char *) SSL_SESSION_get_id(sess, &len);
|
|
|
|
hash = ngx_crc32_short(id, len);
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
"ssl remove session: %08XD:%ud", hash, len);
|
|
|
|
shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
|
ngx_shmtx_lock(&shpool->mutex);
|
|
|
|
node = cache->session_rbtree.root;
|
|
sentinel = cache->session_rbtree.sentinel;
|
|
|
|
while (node != sentinel) {
|
|
|
|
if (hash < node->key) {
|
|
node = node->left;
|
|
continue;
|
|
}
|
|
|
|
if (hash > node->key) {
|
|
node = node->right;
|
|
continue;
|
|
}
|
|
|
|
/* hash == node->key */
|
|
|
|
sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
|
rc = ngx_memn2cmp(id, sess_id->id, len, (size_t) node->data);
|
|
|
|
if (rc == 0) {
|
|
|
|
ngx_queue_remove(&sess_id->queue);
|
|
|
|
ngx_rbtree_delete(&cache->session_rbtree, node);
|
|
|
|
ngx_explicit_memzero(sess_id->session, sess_id->len);
|
|
|
|
#if (NGX_PTR_SIZE == 8)
|
|
ngx_slab_free_locked(shpool, sess_id->session);
|
|
#endif
|
|
ngx_slab_free_locked(shpool, sess_id);
|
|
|
|
goto done;
|
|
}
|
|
|
|
node = (rc < 0) ? node->left : node->right;
|
|
}
|
|
|
|
done:
|
|
|
|
ngx_shmtx_unlock(&shpool->mutex);
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
|
|
ngx_slab_pool_t *shpool, ngx_uint_t n)
|
|
{
|
|
time_t now;
|
|
ngx_queue_t *q;
|
|
ngx_ssl_sess_id_t *sess_id;
|
|
|
|
now = ngx_time();
|
|
|
|
while (n < 3) {
|
|
|
|
if (ngx_queue_empty(&cache->expire_queue)) {
|
|
return;
|
|
}
|
|
|
|
q = ngx_queue_last(&cache->expire_queue);
|
|
|
|
sess_id = ngx_queue_data(q, ngx_ssl_sess_id_t, queue);
|
|
|
|
if (n++ != 0 && sess_id->expire > now) {
|
|
return;
|
|
}
|
|
|
|
ngx_queue_remove(q);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
"expire session: %08Xi", sess_id->node.key);
|
|
|
|
ngx_rbtree_delete(&cache->session_rbtree, &sess_id->node);
|
|
|
|
ngx_explicit_memzero(sess_id->session, sess_id->len);
|
|
|
|
#if (NGX_PTR_SIZE == 8)
|
|
ngx_slab_free_locked(shpool, sess_id->session);
|
|
#endif
|
|
ngx_slab_free_locked(shpool, sess_id);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
{
|
|
ngx_rbtree_node_t **p;
|
|
ngx_ssl_sess_id_t *sess_id, *sess_id_temp;
|
|
|
|
for ( ;; ) {
|
|
|
|
if (node->key < temp->key) {
|
|
|
|
p = &temp->left;
|
|
|
|
} else if (node->key > temp->key) {
|
|
|
|
p = &temp->right;
|
|
|
|
} else { /* node->key == temp->key */
|
|
|
|
sess_id = (ngx_ssl_sess_id_t *) node;
|
|
sess_id_temp = (ngx_ssl_sess_id_t *) temp;
|
|
|
|
p = (ngx_memn2cmp(sess_id->id, sess_id_temp->id,
|
|
(size_t) node->data, (size_t) temp->data)
|
|
< 0) ? &temp->left : &temp->right;
|
|
}
|
|
|
|
if (*p == sentinel) {
|
|
break;
|
|
}
|
|
|
|
temp = *p;
|
|
}
|
|
|
|
*p = node;
|
|
node->parent = temp;
|
|
node->left = sentinel;
|
|
node->right = sentinel;
|
|
ngx_rbt_red(node);
|
|
}
|
|
|
|
|
|
#ifdef SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB
|
|
|
|
ngx_int_t
|
|
ngx_ssl_session_ticket_keys(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_array_t *paths)
|
|
{
|
|
u_char buf[80];
|
|
size_t size;
|
|
ssize_t n;
|
|
ngx_str_t *path;
|
|
ngx_file_t file;
|
|
ngx_uint_t i;
|
|
ngx_array_t *keys;
|
|
ngx_file_info_t fi;
|
|
ngx_pool_cleanup_t *cln;
|
|
ngx_ssl_ticket_key_t *key;
|
|
|
|
if (paths == NULL
|
|
&& SSL_CTX_get_ex_data(ssl->ctx, ngx_ssl_session_cache_index) == NULL)
|
|
{
|
|
return NGX_OK;
|
|
}
|
|
|
|
keys = ngx_array_create(cf->pool, paths ? paths->nelts : 3,
|
|
sizeof(ngx_ssl_ticket_key_t));
|
|
if (keys == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
if (cln == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
cln->handler = ngx_ssl_ticket_keys_cleanup;
|
|
cln->data = keys;
|
|
|
|
if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_ticket_keys_index, keys) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
"SSL_CTX_set_ex_data() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (SSL_CTX_set_tlsext_ticket_key_cb(ssl->ctx, ngx_ssl_ticket_key_callback)
|
|
== 0)
|
|
{
|
|
ngx_log_error(NGX_LOG_WARN, cf->log, 0,
|
|
"nginx was built with Session Tickets support, however, "
|
|
"now it is linked dynamically to an OpenSSL library "
|
|
"which has no tlsext support, therefore Session Tickets "
|
|
"are not available");
|
|
return NGX_OK;
|
|
}
|
|
|
|
if (paths == NULL) {
|
|
|
|
/* placeholder for keys in shared memory */
|
|
|
|
key = ngx_array_push_n(keys, 3);
|
|
key[0].shared = 1;
|
|
key[0].expire = 0;
|
|
key[1].shared = 1;
|
|
key[1].expire = 0;
|
|
key[2].shared = 1;
|
|
key[2].expire = 0;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
path = paths->elts;
|
|
for (i = 0; i < paths->nelts; i++) {
|
|
|
|
if (ngx_conf_full_name(cf->cycle, &path[i], 1) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_memzero(&file, sizeof(ngx_file_t));
|
|
file.name = path[i];
|
|
file.log = cf->log;
|
|
|
|
file.fd = ngx_open_file(file.name.data, NGX_FILE_RDONLY,
|
|
NGX_FILE_OPEN, 0);
|
|
|
|
if (file.fd == NGX_INVALID_FILE) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
|
|
ngx_open_file_n " \"%V\" failed", &file.name);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_fd_info(file.fd, &fi) == NGX_FILE_ERROR) {
|
|
ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno,
|
|
ngx_fd_info_n " \"%V\" failed", &file.name);
|
|
goto failed;
|
|
}
|
|
|
|
size = ngx_file_size(&fi);
|
|
|
|
if (size != 48 && size != 80) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"\"%V\" must be 48 or 80 bytes", &file.name);
|
|
goto failed;
|
|
}
|
|
|
|
n = ngx_read_file(&file, buf, size, 0);
|
|
|
|
if (n == NGX_ERROR) {
|
|
ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno,
|
|
ngx_read_file_n " \"%V\" failed", &file.name);
|
|
goto failed;
|
|
}
|
|
|
|
if ((size_t) n != size) {
|
|
ngx_conf_log_error(NGX_LOG_CRIT, cf, 0,
|
|
ngx_read_file_n " \"%V\" returned only "
|
|
"%z bytes instead of %uz", &file.name, n, size);
|
|
goto failed;
|
|
}
|
|
|
|
key = ngx_array_push(keys);
|
|
if (key == NULL) {
|
|
goto failed;
|
|
}
|
|
|
|
key->shared = 0;
|
|
key->expire = 1;
|
|
|
|
if (size == 48) {
|
|
key->size = 48;
|
|
ngx_memcpy(key->name, buf, 16);
|
|
ngx_memcpy(key->aes_key, buf + 16, 16);
|
|
ngx_memcpy(key->hmac_key, buf + 32, 16);
|
|
|
|
} else {
|
|
key->size = 80;
|
|
ngx_memcpy(key->name, buf, 16);
|
|
ngx_memcpy(key->hmac_key, buf + 16, 32);
|
|
ngx_memcpy(key->aes_key, buf + 48, 32);
|
|
}
|
|
|
|
if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
|
|
ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno,
|
|
ngx_close_file_n " \"%V\" failed", &file.name);
|
|
}
|
|
|
|
ngx_explicit_memzero(&buf, 80);
|
|
}
|
|
|
|
return NGX_OK;
|
|
|
|
failed:
|
|
|
|
if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
|
|
ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno,
|
|
ngx_close_file_n " \"%V\" failed", &file.name);
|
|
}
|
|
|
|
ngx_explicit_memzero(&buf, 80);
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
|
|
static int
|
|
ngx_ssl_ticket_key_callback(ngx_ssl_conn_t *ssl_conn,
|
|
unsigned char *name, unsigned char *iv, EVP_CIPHER_CTX *ectx,
|
|
HMAC_CTX *hctx, int enc)
|
|
{
|
|
size_t size;
|
|
SSL_CTX *ssl_ctx;
|
|
ngx_uint_t i;
|
|
ngx_array_t *keys;
|
|
ngx_connection_t *c;
|
|
ngx_ssl_ticket_key_t *key;
|
|
const EVP_MD *digest;
|
|
const EVP_CIPHER *cipher;
|
|
|
|
c = ngx_ssl_get_connection(ssl_conn);
|
|
ssl_ctx = c->ssl->session_ctx;
|
|
|
|
if (ngx_ssl_rotate_ticket_keys(ssl_ctx, c->log) != NGX_OK) {
|
|
return -1;
|
|
}
|
|
|
|
#ifdef OPENSSL_NO_SHA256
|
|
digest = EVP_sha1();
|
|
#else
|
|
digest = EVP_sha256();
|
|
#endif
|
|
|
|
keys = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_ticket_keys_index);
|
|
if (keys == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
key = keys->elts;
|
|
|
|
if (enc == 1) {
|
|
/* encrypt session ticket */
|
|
|
|
ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"ssl ticket encrypt, key: \"%*xs\" (%s session)",
|
|
(size_t) 16, key[0].name,
|
|
SSL_session_reused(ssl_conn) ? "reused" : "new");
|
|
|
|
if (key[0].size == 48) {
|
|
cipher = EVP_aes_128_cbc();
|
|
size = 16;
|
|
|
|
} else {
|
|
cipher = EVP_aes_256_cbc();
|
|
size = 32;
|
|
}
|
|
|
|
if (RAND_bytes(iv, EVP_CIPHER_iv_length(cipher)) != 1) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "RAND_bytes() failed");
|
|
return -1;
|
|
}
|
|
|
|
if (EVP_EncryptInit_ex(ectx, cipher, NULL, key[0].aes_key, iv) != 1) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0,
|
|
"EVP_EncryptInit_ex() failed");
|
|
return -1;
|
|
}
|
|
|
|
#if OPENSSL_VERSION_NUMBER >= 0x10000000L
|
|
if (HMAC_Init_ex(hctx, key[0].hmac_key, size, digest, NULL) != 1) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "HMAC_Init_ex() failed");
|
|
return -1;
|
|
}
|
|
#else
|
|
HMAC_Init_ex(hctx, key[0].hmac_key, size, digest, NULL);
|
|
#endif
|
|
|
|
ngx_memcpy(name, key[0].name, 16);
|
|
|
|
return 1;
|
|
|
|
} else {
|
|
/* decrypt session ticket */
|
|
|
|
for (i = 0; i < keys->nelts; i++) {
|
|
if (ngx_memcmp(name, key[i].name, 16) == 0) {
|
|
goto found;
|
|
}
|
|
}
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"ssl ticket decrypt, key: \"%*xs\" not found",
|
|
(size_t) 16, name);
|
|
|
|
return 0;
|
|
|
|
found:
|
|
|
|
ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"ssl ticket decrypt, key: \"%*xs\"%s",
|
|
(size_t) 16, key[i].name, (i == 0) ? " (default)" : "");
|
|
|
|
if (key[i].size == 48) {
|
|
cipher = EVP_aes_128_cbc();
|
|
size = 16;
|
|
|
|
} else {
|
|
cipher = EVP_aes_256_cbc();
|
|
size = 32;
|
|
}
|
|
|
|
#if OPENSSL_VERSION_NUMBER >= 0x10000000L
|
|
if (HMAC_Init_ex(hctx, key[i].hmac_key, size, digest, NULL) != 1) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "HMAC_Init_ex() failed");
|
|
return -1;
|
|
}
|
|
#else
|
|
HMAC_Init_ex(hctx, key[i].hmac_key, size, digest, NULL);
|
|
#endif
|
|
|
|
if (EVP_DecryptInit_ex(ectx, cipher, NULL, key[i].aes_key, iv) != 1) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0,
|
|
"EVP_DecryptInit_ex() failed");
|
|
return -1;
|
|
}
|
|
|
|
/* renew if TLSv1.3 */
|
|
|
|
#ifdef TLS1_3_VERSION
|
|
if (SSL_version(ssl_conn) == TLS1_3_VERSION) {
|
|
return 2;
|
|
}
|
|
#endif
|
|
|
|
/* renew if non-default key */
|
|
|
|
if (i != 0 && key[i].expire) {
|
|
return 2;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_ssl_rotate_ticket_keys(SSL_CTX *ssl_ctx, ngx_log_t *log)
|
|
{
|
|
time_t now, expire;
|
|
ngx_array_t *keys;
|
|
ngx_shm_zone_t *shm_zone;
|
|
ngx_slab_pool_t *shpool;
|
|
ngx_ssl_ticket_key_t *key;
|
|
ngx_ssl_session_cache_t *cache;
|
|
u_char buf[80];
|
|
|
|
keys = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_ticket_keys_index);
|
|
if (keys == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
key = keys->elts;
|
|
|
|
if (!key[0].shared) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
/*
|
|
* if we don't need to update expiration of the current key
|
|
* and the previous key is still needed, don't sync with shared
|
|
* memory to save some work; in the worst case other worker process
|
|
* will switch to the next key, but this process will still be able
|
|
* to decrypt tickets encrypted with it
|
|
*/
|
|
|
|
now = ngx_time();
|
|
expire = now + SSL_CTX_get_timeout(ssl_ctx);
|
|
|
|
if (key[0].expire >= expire && key[1].expire >= now) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
|
|
|
|
cache = shm_zone->data;
|
|
shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
|
ngx_shmtx_lock(&shpool->mutex);
|
|
|
|
key = cache->ticket_keys;
|
|
|
|
if (key[0].expire == 0) {
|
|
|
|
/* initialize the current key */
|
|
|
|
if (RAND_bytes(buf, 80) != 1) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, log, 0, "RAND_bytes() failed");
|
|
ngx_shmtx_unlock(&shpool->mutex);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
key[0].shared = 1;
|
|
key[0].expire = expire;
|
|
key[0].size = 80;
|
|
ngx_memcpy(key[0].name, buf, 16);
|
|
ngx_memcpy(key[0].hmac_key, buf + 16, 32);
|
|
ngx_memcpy(key[0].aes_key, buf + 48, 32);
|
|
|
|
ngx_explicit_memzero(&buf, 80);
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
"ssl ticket key: \"%*xs\"",
|
|
(size_t) 16, key[0].name);
|
|
|
|
/*
|
|
* copy the current key to the next key, as initialization of
|
|
* the previous key will replace the current key with the next
|
|
* key
|
|
*/
|
|
|
|
key[2] = key[0];
|
|
}
|
|
|
|
if (key[1].expire < now) {
|
|
|
|
/*
|
|
* if the previous key is no longer needed (or not initialized),
|
|
* replace it with the current key, replace the current key with
|
|
* the next key, and generate new next key
|
|
*/
|
|
|
|
key[1] = key[0];
|
|
key[0] = key[2];
|
|
|
|
if (RAND_bytes(buf, 80) != 1) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, log, 0, "RAND_bytes() failed");
|
|
ngx_shmtx_unlock(&shpool->mutex);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
key[2].shared = 1;
|
|
key[2].expire = 0;
|
|
key[2].size = 80;
|
|
ngx_memcpy(key[2].name, buf, 16);
|
|
ngx_memcpy(key[2].hmac_key, buf + 16, 32);
|
|
ngx_memcpy(key[2].aes_key, buf + 48, 32);
|
|
|
|
ngx_explicit_memzero(&buf, 80);
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
"ssl ticket key: \"%*xs\"",
|
|
(size_t) 16, key[2].name);
|
|
}
|
|
|
|
/*
|
|
* update expiration of the current key: it is going to be needed
|
|
* at least till the session being created expires
|
|
*/
|
|
|
|
if (expire > key[0].expire) {
|
|
key[0].expire = expire;
|
|
}
|
|
|
|
/* sync keys to the worker process memory */
|
|
|
|
ngx_memcpy(keys->elts, cache->ticket_keys,
|
|
2 * sizeof(ngx_ssl_ticket_key_t));
|
|
|
|
ngx_shmtx_unlock(&shpool->mutex);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_ssl_ticket_keys_cleanup(void *data)
|
|
{
|
|
ngx_array_t *keys = data;
|
|
|
|
ngx_explicit_memzero(keys->elts,
|
|
keys->nelts * sizeof(ngx_ssl_ticket_key_t));
|
|
}
|
|
|
|
#else
|
|
|
|
ngx_int_t
|
|
ngx_ssl_session_ticket_keys(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_array_t *paths)
|
|
{
|
|
if (paths) {
|
|
ngx_log_error(NGX_LOG_WARN, ssl->log, 0,
|
|
"\"ssl_session_ticket_key\" ignored, not supported");
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
void
|
|
ngx_ssl_cleanup_ctx(void *data)
|
|
{
|
|
ngx_ssl_t *ssl = data;
|
|
|
|
X509 *cert, *next;
|
|
|
|
cert = SSL_CTX_get_ex_data(ssl->ctx, ngx_ssl_certificate_index);
|
|
|
|
while (cert) {
|
|
next = X509_get_ex_data(cert, ngx_ssl_next_certificate_index);
|
|
X509_free(cert);
|
|
cert = next;
|
|
}
|
|
|
|
SSL_CTX_free(ssl->ctx);
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_check_host(ngx_connection_t *c, ngx_str_t *name)
|
|
{
|
|
X509 *cert;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#ifdef X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT
|
|
|
|
/* X509_check_host() is only available in OpenSSL 1.0.2+ */
|
|
|
|
if (name->len == 0) {
|
|
goto failed;
|
|
}
|
|
|
|
if (X509_check_host(cert, (char *) name->data, name->len, 0, NULL) != 1) {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"X509_check_host(): no match");
|
|
goto failed;
|
|
}
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"X509_check_host(): match");
|
|
|
|
goto found;
|
|
|
|
#else
|
|
{
|
|
int n, i;
|
|
X509_NAME *sname;
|
|
ASN1_STRING *str;
|
|
X509_NAME_ENTRY *entry;
|
|
GENERAL_NAME *altname;
|
|
STACK_OF(GENERAL_NAME) *altnames;
|
|
|
|
/*
|
|
* As per RFC6125 and RFC2818, we check subjectAltName extension,
|
|
* and if it's not present - commonName in Subject is checked.
|
|
*/
|
|
|
|
altnames = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
|
|
|
|
if (altnames) {
|
|
n = sk_GENERAL_NAME_num(altnames);
|
|
|
|
for (i = 0; i < n; i++) {
|
|
altname = sk_GENERAL_NAME_value(altnames, i);
|
|
|
|
if (altname->type != GEN_DNS) {
|
|
continue;
|
|
}
|
|
|
|
str = altname->d.dNSName;
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL subjectAltName: \"%*s\"",
|
|
ASN1_STRING_length(str), ASN1_STRING_data(str));
|
|
|
|
if (ngx_ssl_check_name(name, str) == NGX_OK) {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL subjectAltName: match");
|
|
GENERAL_NAMES_free(altnames);
|
|
goto found;
|
|
}
|
|
}
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL subjectAltName: no match");
|
|
|
|
GENERAL_NAMES_free(altnames);
|
|
goto failed;
|
|
}
|
|
|
|
/*
|
|
* If there is no subjectAltName extension, check commonName
|
|
* in Subject. While RFC2818 requires to only check "most specific"
|
|
* CN, both Apache and OpenSSL check all CNs, and so do we.
|
|
*/
|
|
|
|
sname = X509_get_subject_name(cert);
|
|
|
|
if (sname == NULL) {
|
|
goto failed;
|
|
}
|
|
|
|
i = -1;
|
|
for ( ;; ) {
|
|
i = X509_NAME_get_index_by_NID(sname, NID_commonName, i);
|
|
|
|
if (i < 0) {
|
|
break;
|
|
}
|
|
|
|
entry = X509_NAME_get_entry(sname, i);
|
|
str = X509_NAME_ENTRY_get_data(entry);
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL commonName: \"%*s\"",
|
|
ASN1_STRING_length(str), ASN1_STRING_data(str));
|
|
|
|
if (ngx_ssl_check_name(name, str) == NGX_OK) {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL commonName: match");
|
|
goto found;
|
|
}
|
|
}
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
"SSL commonName: no match");
|
|
}
|
|
#endif
|
|
|
|
failed:
|
|
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
|
|
found:
|
|
|
|
X509_free(cert);
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
#ifndef X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT
|
|
|
|
static ngx_int_t
|
|
ngx_ssl_check_name(ngx_str_t *name, ASN1_STRING *pattern)
|
|
{
|
|
u_char *s, *p, *end;
|
|
size_t slen, plen;
|
|
|
|
s = name->data;
|
|
slen = name->len;
|
|
|
|
p = ASN1_STRING_data(pattern);
|
|
plen = ASN1_STRING_length(pattern);
|
|
|
|
if (slen == plen && ngx_strncasecmp(s, p, plen) == 0) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
if (plen > 2 && p[0] == '*' && p[1] == '.') {
|
|
plen -= 1;
|
|
p += 1;
|
|
|
|
end = s + slen;
|
|
s = ngx_strlchr(s, end, '.');
|
|
|
|
if (s == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
slen = end - s;
|
|
|
|
if (plen == slen && ngx_strncasecmp(s, p, plen) == 0) {
|
|
return NGX_OK;
|
|
}
|
|
}
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
s->data = (u_char *) SSL_get_version(c->ssl->connection);
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
s->data = (u_char *) SSL_get_cipher_name(c->ssl->connection);
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_ciphers(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
#ifdef SSL_CTRL_GET_RAW_CIPHERLIST
|
|
|
|
int n, i, bytes;
|
|
size_t len;
|
|
u_char *ciphers, *p;
|
|
const SSL_CIPHER *cipher;
|
|
|
|
bytes = SSL_get0_raw_cipherlist(c->ssl->connection, NULL);
|
|
n = SSL_get0_raw_cipherlist(c->ssl->connection, &ciphers);
|
|
|
|
if (n <= 0) {
|
|
s->len = 0;
|
|
return NGX_OK;
|
|
}
|
|
|
|
len = 0;
|
|
n /= bytes;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
cipher = SSL_CIPHER_find(c->ssl->connection, ciphers + i * bytes);
|
|
|
|
if (cipher) {
|
|
len += ngx_strlen(SSL_CIPHER_get_name(cipher));
|
|
|
|
} else {
|
|
len += sizeof("0x") - 1 + bytes * (sizeof("00") - 1);
|
|
}
|
|
|
|
len += sizeof(":") - 1;
|
|
}
|
|
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
p = s->data;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
cipher = SSL_CIPHER_find(c->ssl->connection, ciphers + i * bytes);
|
|
|
|
if (cipher) {
|
|
p = ngx_sprintf(p, "%s", SSL_CIPHER_get_name(cipher));
|
|
|
|
} else {
|
|
p = ngx_sprintf(p, "0x");
|
|
p = ngx_hex_dump(p, ciphers + i * bytes, bytes);
|
|
}
|
|
|
|
*p++ = ':';
|
|
}
|
|
|
|
p--;
|
|
|
|
s->len = p - s->data;
|
|
|
|
#else
|
|
|
|
u_char buf[4096];
|
|
|
|
if (SSL_get_shared_ciphers(c->ssl->connection, (char *) buf, 4096)
|
|
== NULL)
|
|
{
|
|
s->len = 0;
|
|
return NGX_OK;
|
|
}
|
|
|
|
s->len = ngx_strlen(buf);
|
|
s->data = ngx_pnalloc(pool, s->len);
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_memcpy(s->data, buf, s->len);
|
|
|
|
#endif
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_curve(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
#ifdef SSL_get_negotiated_group
|
|
|
|
int nid;
|
|
|
|
nid = SSL_get_negotiated_group(c->ssl->connection);
|
|
|
|
if (nid != NID_undef) {
|
|
|
|
if ((nid & TLSEXT_nid_unknown) == 0) {
|
|
s->len = ngx_strlen(OBJ_nid2sn(nid));
|
|
s->data = (u_char *) OBJ_nid2sn(nid);
|
|
return NGX_OK;
|
|
}
|
|
|
|
s->len = sizeof("0x0000") - 1;
|
|
|
|
s->data = ngx_pnalloc(pool, s->len);
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_sprintf(s->data, "0x%04xd", nid & 0xffff);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
#endif
|
|
|
|
s->len = 0;
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_curves(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
#ifdef SSL_CTRL_GET_CURVES
|
|
|
|
int *curves, n, i, nid;
|
|
u_char *p;
|
|
size_t len;
|
|
|
|
n = SSL_get1_curves(c->ssl->connection, NULL);
|
|
|
|
if (n <= 0) {
|
|
s->len = 0;
|
|
return NGX_OK;
|
|
}
|
|
|
|
curves = ngx_palloc(pool, n * sizeof(int));
|
|
|
|
n = SSL_get1_curves(c->ssl->connection, curves);
|
|
len = 0;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
nid = curves[i];
|
|
|
|
if (nid & TLSEXT_nid_unknown) {
|
|
len += sizeof("0x0000") - 1;
|
|
|
|
} else {
|
|
len += ngx_strlen(OBJ_nid2sn(nid));
|
|
}
|
|
|
|
len += sizeof(":") - 1;
|
|
}
|
|
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
p = s->data;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
nid = curves[i];
|
|
|
|
if (nid & TLSEXT_nid_unknown) {
|
|
p = ngx_sprintf(p, "0x%04xd", nid & 0xffff);
|
|
|
|
} else {
|
|
p = ngx_sprintf(p, "%s", OBJ_nid2sn(nid));
|
|
}
|
|
|
|
*p++ = ':';
|
|
}
|
|
|
|
p--;
|
|
|
|
s->len = p - s->data;
|
|
|
|
#else
|
|
|
|
s->len = 0;
|
|
|
|
#endif
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_session_id(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
u_char *buf;
|
|
SSL_SESSION *sess;
|
|
unsigned int len;
|
|
|
|
sess = SSL_get0_session(c->ssl->connection);
|
|
if (sess == NULL) {
|
|
s->len = 0;
|
|
return NGX_OK;
|
|
}
|
|
|
|
buf = (u_char *) SSL_SESSION_get_id(sess, &len);
|
|
|
|
s->len = 2 * len;
|
|
s->data = ngx_pnalloc(pool, 2 * len);
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_hex_dump(s->data, buf, len);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_session_reused(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
if (SSL_session_reused(c->ssl->connection)) {
|
|
ngx_str_set(s, "r");
|
|
|
|
} else {
|
|
ngx_str_set(s, ".");
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_early_data(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
s->len = 0;
|
|
|
|
#ifdef SSL_ERROR_EARLY_DATA_REJECTED
|
|
|
|
/* BoringSSL */
|
|
|
|
if (SSL_in_early_data(c->ssl->connection)) {
|
|
ngx_str_set(s, "1");
|
|
}
|
|
|
|
#elif defined SSL_READ_EARLY_DATA_SUCCESS
|
|
|
|
/* OpenSSL */
|
|
|
|
if (!SSL_is_init_finished(c->ssl->connection)) {
|
|
ngx_str_set(s, "1");
|
|
}
|
|
|
|
#endif
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_server_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
|
size_t len;
|
|
const char *name;
|
|
|
|
name = SSL_get_servername(c->ssl->connection, TLSEXT_NAMETYPE_host_name);
|
|
|
|
if (name) {
|
|
len = ngx_strlen(name);
|
|
|
|
s->len = len;
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_memcpy(s->data, name, len);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
#endif
|
|
|
|
s->len = 0;
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_alpn_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
|
|
|
|
unsigned int len;
|
|
const unsigned char *data;
|
|
|
|
SSL_get0_alpn_selected(c->ssl->connection, &data, &len);
|
|
|
|
if (len > 0) {
|
|
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_memcpy(s->data, data, len);
|
|
s->len = len;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
#endif
|
|
|
|
s->len = 0;
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_raw_certificate(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
size_t len;
|
|
BIO *bio;
|
|
X509 *cert;
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
bio = BIO_new(BIO_s_mem());
|
|
if (bio == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (PEM_write_bio_X509(bio, cert) == 0) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "PEM_write_bio_X509() failed");
|
|
goto failed;
|
|
}
|
|
|
|
len = BIO_pending(bio);
|
|
s->len = len;
|
|
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
goto failed;
|
|
}
|
|
|
|
BIO_read(bio, s->data, len);
|
|
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
|
|
failed:
|
|
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_certificate(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
u_char *p;
|
|
size_t len;
|
|
ngx_uint_t i;
|
|
ngx_str_t cert;
|
|
|
|
if (ngx_ssl_get_raw_certificate(c, pool, &cert) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (cert.len == 0) {
|
|
s->len = 0;
|
|
return NGX_OK;
|
|
}
|
|
|
|
len = cert.len - 1;
|
|
|
|
for (i = 0; i < cert.len - 1; i++) {
|
|
if (cert.data[i] == LF) {
|
|
len++;
|
|
}
|
|
}
|
|
|
|
s->len = len;
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
p = s->data;
|
|
|
|
for (i = 0; i < cert.len - 1; i++) {
|
|
*p++ = cert.data[i];
|
|
if (cert.data[i] == LF) {
|
|
*p++ = '\t';
|
|
}
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_escaped_certificate(ngx_connection_t *c, ngx_pool_t *pool,
|
|
ngx_str_t *s)
|
|
{
|
|
ngx_str_t cert;
|
|
uintptr_t n;
|
|
|
|
if (ngx_ssl_get_raw_certificate(c, pool, &cert) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (cert.len == 0) {
|
|
s->len = 0;
|
|
return NGX_OK;
|
|
}
|
|
|
|
n = ngx_escape_uri(NULL, cert.data, cert.len, NGX_ESCAPE_URI_COMPONENT);
|
|
|
|
s->len = cert.len + n * 2;
|
|
s->data = ngx_pnalloc(pool, s->len);
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_escape_uri(s->data, cert.data, cert.len, NGX_ESCAPE_URI_COMPONENT);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
BIO *bio;
|
|
X509 *cert;
|
|
X509_NAME *name;
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
name = X509_get_subject_name(cert);
|
|
if (name == NULL) {
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
bio = BIO_new(BIO_s_mem());
|
|
if (bio == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (X509_NAME_print_ex(bio, name, 0, XN_FLAG_RFC2253) < 0) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_NAME_print_ex() failed");
|
|
goto failed;
|
|
}
|
|
|
|
s->len = BIO_pending(bio);
|
|
s->data = ngx_pnalloc(pool, s->len);
|
|
if (s->data == NULL) {
|
|
goto failed;
|
|
}
|
|
|
|
BIO_read(bio, s->data, s->len);
|
|
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
|
|
failed:
|
|
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
BIO *bio;
|
|
X509 *cert;
|
|
X509_NAME *name;
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
name = X509_get_issuer_name(cert);
|
|
if (name == NULL) {
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
bio = BIO_new(BIO_s_mem());
|
|
if (bio == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (X509_NAME_print_ex(bio, name, 0, XN_FLAG_RFC2253) < 0) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_NAME_print_ex() failed");
|
|
goto failed;
|
|
}
|
|
|
|
s->len = BIO_pending(bio);
|
|
s->data = ngx_pnalloc(pool, s->len);
|
|
if (s->data == NULL) {
|
|
goto failed;
|
|
}
|
|
|
|
BIO_read(bio, s->data, s->len);
|
|
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
|
|
failed:
|
|
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_subject_dn_legacy(ngx_connection_t *c, ngx_pool_t *pool,
|
|
ngx_str_t *s)
|
|
{
|
|
char *p;
|
|
size_t len;
|
|
X509 *cert;
|
|
X509_NAME *name;
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
name = X509_get_subject_name(cert);
|
|
if (name == NULL) {
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
p = X509_NAME_oneline(name, NULL, 0);
|
|
if (p == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_NAME_oneline() failed");
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
for (len = 0; p[len]; len++) { /* void */ }
|
|
|
|
s->len = len;
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
OPENSSL_free(p);
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_memcpy(s->data, p, len);
|
|
|
|
OPENSSL_free(p);
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_issuer_dn_legacy(ngx_connection_t *c, ngx_pool_t *pool,
|
|
ngx_str_t *s)
|
|
{
|
|
char *p;
|
|
size_t len;
|
|
X509 *cert;
|
|
X509_NAME *name;
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
name = X509_get_issuer_name(cert);
|
|
if (name == NULL) {
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
p = X509_NAME_oneline(name, NULL, 0);
|
|
if (p == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_NAME_oneline() failed");
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
for (len = 0; p[len]; len++) { /* void */ }
|
|
|
|
s->len = len;
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
OPENSSL_free(p);
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_memcpy(s->data, p, len);
|
|
|
|
OPENSSL_free(p);
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
size_t len;
|
|
X509 *cert;
|
|
BIO *bio;
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
bio = BIO_new(BIO_s_mem());
|
|
if (bio == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
|
|
len = BIO_pending(bio);
|
|
|
|
s->len = len;
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
BIO_read(bio, s->data, len);
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_fingerprint(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
X509 *cert;
|
|
unsigned int len;
|
|
u_char buf[EVP_MAX_MD_SIZE];
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
if (!X509_digest(cert, EVP_sha1(), buf, &len)) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_digest() failed");
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
s->len = 2 * len;
|
|
s->data = ngx_pnalloc(pool, 2 * len);
|
|
if (s->data == NULL) {
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_hex_dump(s->data, buf, len);
|
|
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_client_verify(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
X509 *cert;
|
|
long rc;
|
|
const char *str;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
ngx_str_set(s, "NONE");
|
|
return NGX_OK;
|
|
}
|
|
|
|
X509_free(cert);
|
|
|
|
rc = SSL_get_verify_result(c->ssl->connection);
|
|
|
|
if (rc == X509_V_OK) {
|
|
if (ngx_ssl_ocsp_get_status(c, &str) == NGX_OK) {
|
|
ngx_str_set(s, "SUCCESS");
|
|
return NGX_OK;
|
|
}
|
|
|
|
} else {
|
|
str = X509_verify_cert_error_string(rc);
|
|
}
|
|
|
|
s->data = ngx_pnalloc(pool, sizeof("FAILED:") - 1 + ngx_strlen(str));
|
|
if (s->data == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
s->len = ngx_sprintf(s->data, "FAILED:%s", str) - s->data;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_client_v_start(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
BIO *bio;
|
|
X509 *cert;
|
|
size_t len;
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
bio = BIO_new(BIO_s_mem());
|
|
if (bio == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#if OPENSSL_VERSION_NUMBER > 0x10100000L
|
|
ASN1_TIME_print(bio, X509_get0_notBefore(cert));
|
|
#else
|
|
ASN1_TIME_print(bio, X509_get_notBefore(cert));
|
|
#endif
|
|
|
|
len = BIO_pending(bio);
|
|
|
|
s->len = len;
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
BIO_read(bio, s->data, len);
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_client_v_end(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
BIO *bio;
|
|
X509 *cert;
|
|
size_t len;
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
bio = BIO_new(BIO_s_mem());
|
|
if (bio == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
#if OPENSSL_VERSION_NUMBER > 0x10100000L
|
|
ASN1_TIME_print(bio, X509_get0_notAfter(cert));
|
|
#else
|
|
ASN1_TIME_print(bio, X509_get_notAfter(cert));
|
|
#endif
|
|
|
|
len = BIO_pending(bio);
|
|
|
|
s->len = len;
|
|
s->data = ngx_pnalloc(pool, len);
|
|
if (s->data == NULL) {
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
BIO_read(bio, s->data, len);
|
|
BIO_free(bio);
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
ngx_int_t
|
|
ngx_ssl_get_client_v_remain(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
{
|
|
X509 *cert;
|
|
time_t now, end;
|
|
|
|
s->len = 0;
|
|
|
|
cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
if (cert == NULL) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
#if OPENSSL_VERSION_NUMBER > 0x10100000L
|
|
end = ngx_ssl_parse_time(X509_get0_notAfter(cert), c->log);
|
|
#else
|
|
end = ngx_ssl_parse_time(X509_get_notAfter(cert), c->log);
|
|
#endif
|
|
|
|
if (end == (time_t) NGX_ERROR) {
|
|
X509_free(cert);
|
|
return NGX_OK;
|
|
}
|
|
|
|
now = ngx_time();
|
|
|
|
if (end < now + 86400) {
|
|
ngx_str_set(s, "0");
|
|
X509_free(cert);
|
|
return NGX_OK;
|
|
}
|
|
|
|
s->data = ngx_pnalloc(pool, NGX_TIME_T_LEN);
|
|
if (s->data == NULL) {
|
|
X509_free(cert);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
s->len = ngx_sprintf(s->data, "%T", (end - now) / 86400) - s->data;
|
|
|
|
X509_free(cert);
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static time_t
|
|
ngx_ssl_parse_time(
|
|
#if OPENSSL_VERSION_NUMBER > 0x10100000L
|
|
const
|
|
#endif
|
|
ASN1_TIME *asn1time, ngx_log_t *log)
|
|
{
|
|
BIO *bio;
|
|
char *value;
|
|
size_t len;
|
|
time_t time;
|
|
|
|
/*
|
|
* OpenSSL doesn't provide a way to convert ASN1_TIME
|
|
* into time_t. To do this, we use ASN1_TIME_print(),
|
|
* which uses the "MMM DD HH:MM:SS YYYY [GMT]" format (e.g.,
|
|
* "Feb 3 00:55:52 2015 GMT"), and parse the result.
|
|
*/
|
|
|
|
bio = BIO_new(BIO_s_mem());
|
|
if (bio == NULL) {
|
|
ngx_ssl_error(NGX_LOG_ALERT, log, 0, "BIO_new() failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
/* fake weekday prepended to match C asctime() format */
|
|
|
|
BIO_write(bio, "Tue ", sizeof("Tue ") - 1);
|
|
ASN1_TIME_print(bio, asn1time);
|
|
len = BIO_get_mem_data(bio, &value);
|
|
|
|
time = ngx_parse_http_time((u_char *) value, len);
|
|
|
|
BIO_free(bio);
|
|
|
|
return time;
|
|
}
|
|
|
|
|
|
static void *
|
|
ngx_openssl_create_conf(ngx_cycle_t *cycle)
|
|
{
|
|
ngx_openssl_conf_t *oscf;
|
|
|
|
oscf = ngx_pcalloc(cycle->pool, sizeof(ngx_openssl_conf_t));
|
|
if (oscf == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* set by ngx_pcalloc():
|
|
*
|
|
* oscf->engine = 0;
|
|
*/
|
|
|
|
return oscf;
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_openssl_engine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
{
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
|
|
ngx_openssl_conf_t *oscf = conf;
|
|
|
|
ENGINE *engine;
|
|
ngx_str_t *value;
|
|
|
|
if (oscf->engine) {
|
|
return "is duplicate";
|
|
}
|
|
|
|
oscf->engine = 1;
|
|
|
|
value = cf->args->elts;
|
|
|
|
engine = ENGINE_by_id((char *) value[1].data);
|
|
|
|
if (engine == NULL) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
|
|
"ENGINE_by_id(\"%V\") failed", &value[1]);
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
|
|
ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
|
|
"ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
|
|
&value[1]);
|
|
|
|
ENGINE_free(engine);
|
|
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
ENGINE_free(engine);
|
|
|
|
return NGX_CONF_OK;
|
|
|
|
#else
|
|
|
|
return "is not supported";
|
|
|
|
#endif
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_openssl_exit(ngx_cycle_t *cycle)
|
|
{
|
|
#if OPENSSL_VERSION_NUMBER < 0x10100003L
|
|
|
|
EVP_cleanup();
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
ENGINE_cleanup();
|
|
#endif
|
|
|
|
#endif
|
|
}
|