Line data    Source code

       1             : /* FreeTDS - Library of routines accessing Sybase and Microsoft databases
       2             :  * Copyright (C) 2015  Frediano Ziglio
       3             :  *
       4             :  * This library is free software; you can redistribute it and/or
       5             :  * modify it under the terms of the GNU Library General Public
       6             :  * License as published by the Free Software Foundation; either
       7             :  * version 2 of the License, or (at your option) any later version.
       8             :  *
       9             :  * This library is distributed in the hope that it will be useful,
      10             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12             :  * Library General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU Library General Public
      15             :  * License along with this library; if not, write to the
      16             :  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
      17             :  * Boston, MA 02111-1307, USA.
      18             :  */
      19             : 
      20             : #ifndef _tdsguard_hpUeh3TzYOzN1FtT39tMHz_
      21             : #define _tdsguard_hpUeh3TzYOzN1FtT39tMHz_
      22             : 
      23             : #ifndef _tdsguard_hfOrWb5znoUCWdBPoNQvqN_
      24             : #error tds.h must be included before tls.h
      25             : #endif
      26             : 
      27             : #ifdef HAVE_GNUTLS
      28             : #  if defined(_THREAD_SAFE) && defined(TDS_HAVE_PTHREAD_MUTEX)
      29             : #    include <freetds/thread.h>
      30             : #    ifndef GNUTLS_USE_NETTLE
      31             : #      include <gcrypt.h>
      32             : #    endif
      33             : #  endif
      34             : #  include <gnutls/gnutls.h>
      35             : #  include <gnutls/x509.h>
      36             : #elif defined(HAVE_OPENSSL)
      37             : #  include <openssl/ssl.h>
      38             : #  include <openssl/x509v3.h>
      39             : #  include <openssl/err.h>
      40             : #endif
      41             : 
      42             : #include <freetds/pushvis.h>
      43             : 
      44             : #if defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL)
      45             : 
      46             : /*
      47             :  * Common definitions
      48             :  */
      49             : TDSRET tds_ssl_init(TDSSOCKET *tds, bool full);
      50             : void tds_ssl_deinit(TDSCONNECTION *conn);
      51             : size_t tds_ssl_get_cb(TDSCONNECTION * conn, void *cb, size_t cblen);
      52             : 
      53             : #  ifdef HAVE_GNUTLS
      54             : /*
      55             :  * GnuTLS definitions
      56             :  */
      57             : static inline int
      58             : tds_ssl_pending(TDSCONNECTION *conn)
      59             : {
      60      108883 :         return gnutls_record_check_pending((gnutls_session_t) conn->tls_session);
      61             : }
      62             : 
      63             : static inline int
      64             : tds_ssl_read(TDSCONNECTION *conn, unsigned char *buf, int buflen)
      65             : {
      66       46389 :         return gnutls_record_recv((gnutls_session_t) conn->tls_session, buf, buflen);
      67             : }
      68             : 
      69             : static inline int
      70             : tds_ssl_write(TDSCONNECTION *conn, const unsigned char *buf, int buflen)
      71             : {
      72       18484 :         return gnutls_record_send((gnutls_session_t) conn->tls_session, buf, buflen);
      73             : }
      74             : 
      75             : #  else
      76             : /*
      77             :  * OpenSSL definitions
      78             :  */
      79             : 
      80             : /* compatibility for LibreSSL 2.7  */
      81             : #ifdef LIBRESSL_VERSION_NUMBER
      82             : #define TLS_ST_OK SSL_ST_OK
      83             : #endif
      84             : 
      85             : static inline int
      86             : tds_ssl_pending(TDSCONNECTION *conn)
      87             : {
      88       43539 :         return SSL_pending((SSL *) conn->tls_session);
      89             : }
      90             : 
      91             : static inline int
      92             : tds_ssl_read(TDSCONNECTION *conn, unsigned char *buf, int buflen)
      93             : {
      94       36218 :         return SSL_read((SSL *) conn->tls_session, buf, buflen);
      95             : }
      96             : 
      97             : static inline int
      98             : tds_ssl_write(TDSCONNECTION *conn, const unsigned char *buf, int buflen)
      99             : {
     100       17738 :         return SSL_write((SSL *) conn->tls_session, buf, buflen);
     101             : }
     102             : #  endif
     103             : 
     104             : #else
     105             : /*
     106             :  * Definitions if TLS is not enabled
     107             :  */
     108             : static inline TDSRET
     109             : tds_ssl_init(TDSSOCKET *tds TDS_UNUSED, bool full TDS_UNUSED)
     110             : {
     111             :         return TDS_FAIL;
     112             : }
     113             : 
     114             : static inline void
     115             : tds_ssl_deinit(TDSCONNECTION *conn TDS_UNUSED)
     116             : {
     117             : }
     118             : 
     119             : static inline int
     120             : tds_ssl_pending(TDSCONNECTION *conn TDS_UNUSED)
     121             : {
     122             :         return 0;
     123             : }
     124             : 
     125             : static inline int
     126             : tds_ssl_read(TDSCONNECTION *conn TDS_UNUSED, unsigned char *buf TDS_UNUSED, int buflen TDS_UNUSED)
     127             : {
     128             :         return -1;
     129             : }
     130             : 
     131             : static inline int
     132             : tds_ssl_write(TDSCONNECTION *conn TDS_UNUSED, const unsigned char *buf TDS_UNUSED, int buflen TDS_UNUSED)
     133             : {
     134             :         return -1;
     135             : }
     136             : 
     137             : static inline size_t
     138             : tds_ssl_get_cb(TDSCONNECTION *conn TDS_UNUSED, void *cb TDS_UNUSED, size_t cblen TDS_UNUSED)
     139             : {
     140             :         return 0;
     141             : }
     142             : #endif
     143             : 
     144             : #include <freetds/popvis.h>
     145             : 
     146             : #endif /* _tdsguard_hpUeh3TzYOzN1FtT39tMHz_ */