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   1 /*
   2  * Copyright (c) 2002 - 2003
   3  * NetGroup, Politecnico di Torino (Italy)
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  * notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  * notice, this list of conditions and the following disclaimer in the
  14  * documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the Politecnico di Torino nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  *
  31  */
  32
  33 #ifndef __SSLUTILS_H__
  34 #define __SSLUTILS_H__
  35
  36 #ifdef HAVE_OPENSSL
  37 #include "pcap/socket.h"  // for PCAP_SOCKET
  38 // If this is OpenSSL 1.0, at least one header may trigger a -Wdocumentation
  39 // in Clang, which should not be a problem of this header or a file that
  40 // includes it.
  41 #include "diag-control.h"
  42 DIAG_OFF_DOCUMENTATION
  43 #include <openssl/ssl.h>
  44 #include <openssl/err.h>
  45 DIAG_ON_DOCUMENTATION
  46
  47 /*
  48  * Utility functions
  49  */
  50
  51 void ssl_set_certfile(const char *certfile);
  52 void ssl_set_keyfile(const char *keyfile);
  53 int ssl_init_once(int is_server, int enable_compression, char *errbuf, size_t errbuflen);
  54 SSL *ssl_promotion(int is_server, PCAP_SOCKET s, char *errbuf, size_t errbuflen);
  55 void ssl_finish(SSL *ssl);
  56 int ssl_send(SSL *, char const *buffer, int size, char *errbuf, size_t errbuflen);
  57 int ssl_recv(SSL *, char *buffer, int size, char *errbuf, size_t errbuflen);
  58
  59 // The SSL parameters are used
  60 #define _U_NOSSL_
  61
  62 #else   // HAVE_OPENSSL
  63
  64 // This saves us from a lot of ifdefs:
  65 #define SSL void const
  66
  67 // The SSL parameters are unused
  68 #define _U_NOSSL_       _U_
  69
  70 #endif  // HAVE_OPENSSL
  71
  72 #endif  // __SSLUTILS_H__