libmicrohttpd2

HTTP server C library (MHD 2.x, alpha)
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tls_gnu_conn_data.h (3584B)

      1 /* SPDX-License-Identifier: LGPL-2.1-or-later OR (GPL-2.0-or-later WITH eCos-exception-2.0) */
      2 /*
      3   This file is part of GNU libmicrohttpd.
      4   Copyright (C) 2024-2025 Evgeny Grin (Karlson2k)
      5 
      6   GNU libmicrohttpd is free software; you can redistribute it and/or
      7   modify it under the terms of the GNU Lesser General Public
      8   License as published by the Free Software Foundation; either
      9   version 2.1 of the License, or (at your option) any later version.
     10 
     11   GNU libmicrohttpd is distributed in the hope that it will be useful,
     12   but WITHOUT ANY WARRANTY; without even the implied warranty of
     13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14   Lesser General Public License for more details.
     15 
     16   Alternatively, you can redistribute GNU libmicrohttpd and/or
     17   modify it under the terms of the GNU General Public License as
     18   published by the Free Software Foundation; either version 2 of
     19   the License, or (at your option) any later version, together
     20   with the eCos exception, as follows:
     21 
     22     As a special exception, if other files instantiate templates or
     23     use macros or inline functions from this file, or you compile this
     24     file and link it with other works to produce a work based on this
     25     file, this file does not by itself cause the resulting work to be
     26     covered by the GNU General Public License. However the source code
     27     for this file must still be made available in accordance with
     28     section (3) of the GNU General Public License v2.
     29 
     30     This exception does not invalidate any other reasons why a work
     31     based on this file might be covered by the GNU General Public
     32     License.
     33 
     34   You should have received copies of the GNU Lesser General Public
     35   License and the GNU General Public License along with this library;
     36   if not, see <https://www.gnu.org/licenses/>.
     37 */
     38 
     39 /**
     40  * @file src/mhd2/tls_gnu_conn_data.h
     41  * @brief  The definition of GnuTLS connection-specific data structures
     42  * @author Karlson2k (Evgeny Grin)
     43  */
     44 
     45 #ifndef MHD_TLS_GNU_CONN_DATA_H
     46 #define MHD_TLS_GNU_CONN_DATA_H 1
     47 
     48 #include "mhd_sys_options.h"
     49 
     50 #ifndef MHD_SUPPORT_GNUTLS
     51 #  error This header can be used only if GnuTLS is enabled
     52 #endif
     53 
     54 #include "tls_gnu_tls_lib.h"
     55 
     56 #include "sys_bool_type.h"
     57 
     58 #ifdef mhd_HAVE_GNUTLS_ACME
     59 #  include "mhd_tls_cred_ptr.h"
     60 struct mhd_TlsGnuCredData;      /* Forward declaration */
     61 #endif /* mhd_HAVE_GNUTLS_ACME */
     62 
     63 #ifndef NDEBUG
     64 struct mhd_TlsGnuConnDebug
     65 {
     66   bool is_inited;
     67   bool is_tls_handshake_completed;
     68   bool is_finished;
     69   bool is_failed;
     70 };
     71 #endif /* ! NDEBUG */
     72 
     73 /**
     74  * The structure with connection-specific GnuTLS data
     75  */
     76 struct mhd_TlsGnuConnData
     77 {
     78   /**
     79    * GnuTLS session data
     80    */
     81   gnutls_session_t sess;
     82 
     83   /**
     84    * 'true' if received EOF (the remote side initiated shutting down)
     85    */
     86   bool rmt_shut_tls_wr;
     87 
     88 #ifdef mhd_HAVE_GNUTLS_ACME
     89   /**
     90    * The ACME credentials referenced by the GnuTLS session.
     91    * Only the @a acme_cred.gnu member is used for GnuTLS; it is NULL if the
     92    * connection does not use ACME credentials.
     93    */
     94   union mhd_TlsCredDataPtr acme_cred;
     95   /**
     96    * Pointer to the daemon's TLS data.
     97    * NULL if no ACME credentials were available during connection
     98    * initialisation.
     99    */
    100   const struct mhd_TlsGnuDaemonData *d_tls;
    101   /**
    102    * 'true' if the ClientHello message has been processed
    103    * Used mainly for detection of second ClientHello after TLS 1.3 HRR
    104    */
    105   bool clienthello_processed;
    106 #endif /* mhd_HAVE_GNUTLS_ACME */
    107 
    108 #ifndef NDEBUG
    109   /**
    110    * Debugging data
    111    */
    112   struct mhd_TlsGnuConnDebug dbg;
    113 #endif /* ! NDEBUG */
    114 };
    115 
    116 #endif /* ! MHD_TLS_GNU_CONN_DATA_H */