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      1 /*
      2  * Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the Apache License 2.0 (the "License").  You may not use
      5  * this file except in compliance with the License.  You can obtain a copy
      6  * in the file LICENSE in the source distribution or at
      7  * https://www.openssl.org/source/license.html
      8  */
      9 
     10 #ifndef OSSL_QUIC_ENGINE_LOCAL_H
     11 #define OSSL_QUIC_ENGINE_LOCAL_H
     12 
     13 #include "internal/quic_engine.h"
     14 #include "internal/quic_reactor.h"
     15 
     16 #ifndef OPENSSL_NO_QUIC
     17 
     18 /*
     19  * QUIC Engine Structure
     20  * =====================
     21  *
     22  * QUIC engine internals. It is intended that only the QUIC_ENGINE, QUIC_PORT
     23  * and QUIC_CHANNEL implementations be allowed to access this structure
     24  * directly.
     25  *
     26  * Other components should not include this header.
     27  */
     28 DECLARE_LIST_OF(port, QUIC_PORT);
     29 
     30 struct quic_engine_st {
     31     /* All objects in a QUIC event domain share the same (libctx, propq). */
     32     OSSL_LIB_CTX *libctx;
     33     const char *propq;
     34 
     35     /*
     36      * Master synchronisation mutex for the entire QUIC event domain. Used for
     37      * thread assisted mode synchronisation. We don't own this; the instantiator
     38      * of the engine passes it to us and is responsible for freeing it after
     39      * engine destruction.
     40      */
     41     CRYPTO_MUTEX *mutex;
     42 
     43     /* Callback used to get the current time. */
     44     OSSL_TIME (*now_cb)(void *arg);
     45     void *now_cb_arg;
     46 
     47     /* Asynchronous I/O reactor. */
     48     QUIC_REACTOR rtor;
     49 
     50     /* List of all child ports. */
     51     OSSL_LIST(port)
     52     port_list;
     53 
     54     /* Inhibit tick for testing purposes? */
     55     unsigned int inhibit_tick : 1;
     56 };
     57 
     58 #endif
     59 
     60 #endif
     61