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/*
Jabber Protocol Plugin for Miranda IM
Copyright ( C ) 2002-04 Santithorn Bunchua
Copyright ( C ) 2005-06 George Hazan
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or ( at your option ) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
File name : $Source: /cvsroot/miranda/miranda/protocols/JabberG/jabber_ssl.cpp,v $
Revision : $Revision: 2866 $
Last change on : $Date: 2006-05-16 20:39:40 +0400 (Втр, 16 Май 2006) $
Last change by : $Author: ghazan $
*/
#define _JABBER_SSL_C_
#include "jabber.h"
#include "jabber_ssl.h"
PFN_SSL_int_void pfn_SSL_library_init; // int SSL_library_init()
PFN_SSL_pvoid_void pfn_SSLv23_client_method; // SSL_METHOD *SSLv23_client_method()
PFN_SSL_pvoid_pvoid pfn_SSL_CTX_new; // SSL_CTX *SSL_CTX_new( SSL_METHOD *method )
PFN_SSL_void_pvoid pfn_SSL_CTX_free; // void SSL_CTX_free( SSL_CTX *ctx );
PFN_SSL_pvoid_pvoid pfn_SSL_new; // SSL *SSL_new( SSL_CTX *ctx )
PFN_SSL_void_pvoid pfn_SSL_free; // void SSL_free( SSL *ssl );
PFN_SSL_int_pvoid_int pfn_SSL_set_fd; // int SSL_set_fd( SSL *ssl, int fd );
PFN_SSL_int_pvoid pfn_SSL_connect; // int SSL_connect( SSL *ssl );
PFN_SSL_int_pvoid_pvoid_int pfn_SSL_read; // int SSL_read( SSL *ssl, void *buffer, int bufsize )
PFN_SSL_int_pvoid_pvoid_int pfn_SSL_write; // int SSL_write( SSL *ssl, void *buffer, int bufsize )
static CRITICAL_SECTION sslHandleMutex;
static JABBER_SSL_MAPPING *sslHandleList = NULL;
static int sslHandleCount = 0;
BOOL JabberSslInit()
{
BOOL error = FALSE;
sslHandleList = NULL;
sslHandleCount = 0;
InitializeCriticalSection( &sslHandleMutex );
hLibSSL = LoadLibraryA( "SSLEAY32.DLL" );
if ( !hLibSSL )
hLibSSL = LoadLibraryA( "LIBSSL32.DLL" );
if ( hLibSSL ) {
if (( pfn_SSL_library_init=( PFN_SSL_int_void )GetProcAddress( hLibSSL, "SSL_library_init" )) == NULL )
error = TRUE;
if (( pfn_SSLv23_client_method=( PFN_SSL_pvoid_void )GetProcAddress( hLibSSL, "SSLv23_client_method" )) == NULL )
error = TRUE;
if (( pfn_SSL_CTX_new=( PFN_SSL_pvoid_pvoid )GetProcAddress( hLibSSL, "SSL_CTX_new" )) == NULL )
error = TRUE;
if (( pfn_SSL_CTX_free=( PFN_SSL_void_pvoid )GetProcAddress( hLibSSL, "SSL_CTX_free" )) == NULL )
error = TRUE;
if (( pfn_SSL_new=( PFN_SSL_pvoid_pvoid )GetProcAddress( hLibSSL, "SSL_new" )) == NULL )
error = TRUE;
if (( pfn_SSL_free=( PFN_SSL_void_pvoid )GetProcAddress( hLibSSL, "SSL_free" )) == NULL )
error = TRUE;
if (( pfn_SSL_set_fd=( PFN_SSL_int_pvoid_int )GetProcAddress( hLibSSL, "SSL_set_fd" )) == NULL )
error = TRUE;
if (( pfn_SSL_connect=( PFN_SSL_int_pvoid )GetProcAddress( hLibSSL, "SSL_connect" )) == NULL )
error = TRUE;
if (( pfn_SSL_read=( PFN_SSL_int_pvoid_pvoid_int )GetProcAddress( hLibSSL, "SSL_read" )) == NULL )
error = TRUE;
if (( pfn_SSL_write=( PFN_SSL_int_pvoid_pvoid_int )GetProcAddress( hLibSSL, "SSL_write" )) == NULL )
error = TRUE;
if ( error == TRUE ) {
FreeLibrary( hLibSSL );
hLibSSL = NULL;
}
}
#ifdef _DEBUG
if ( hLibSSL )
JabberLog( "SSL library load successful" );
else
JabberLog( "SSL library cannot load" );
#endif
if ( hLibSSL ) {
pfn_SSL_library_init();
jabberSslCtx = pfn_SSL_CTX_new( pfn_SSLv23_client_method());
return TRUE;
}
else
return FALSE;
}
void JabberSslUninit()
{
if ( hLibSSL ) {
pfn_SSL_CTX_free( jabberSslCtx );
JabberLog( "Free SSL library" );
FreeLibrary( hLibSSL );
hLibSSL = NULL;
}
if ( sslHandleList ) mir_free( sslHandleList );
sslHandleCount = 0;
DeleteCriticalSection( &sslHandleMutex );
}
int JabberSslFindHandle( HANDLE hConn )
{
int i;
EnterCriticalSection( &sslHandleMutex );
for ( i=0; i<sslHandleCount; i++ ) {
if ( sslHandleList[i].h == hConn ) {
LeaveCriticalSection( &sslHandleMutex );
return i;
}
}
LeaveCriticalSection( &sslHandleMutex );
return -1;
}
PVOID JabberSslHandleToSsl( HANDLE hConn )
{
int i;
EnterCriticalSection( &sslHandleMutex );
for ( i=0; i<sslHandleCount; i++ ) {
if ( sslHandleList[i].h == hConn ) {
LeaveCriticalSection( &sslHandleMutex );
return sslHandleList[i].ssl;
}
}
LeaveCriticalSection( &sslHandleMutex );
return NULL;
}
void JabberSslAddHandle( HANDLE hConn, PVOID ssl )
{
EnterCriticalSection( &sslHandleMutex );
if ( JabberSslFindHandle( hConn ) >= 0 ) {
LeaveCriticalSection( &sslHandleMutex );
return;
}
sslHandleList = ( JABBER_SSL_MAPPING * ) mir_realloc( sslHandleList, ( sslHandleCount+1 )*sizeof( JABBER_SSL_MAPPING ));
sslHandleList[sslHandleCount].h = hConn;
sslHandleList[sslHandleCount].ssl = ssl;
sslHandleCount++;
LeaveCriticalSection( &sslHandleMutex );
}
void JabberSslRemoveHandle( HANDLE hConn )
{
int i;
EnterCriticalSection( &sslHandleMutex );
if (( i=JabberSslFindHandle( hConn )) < 0 ) {
LeaveCriticalSection( &sslHandleMutex );
return;
}
sslHandleCount--;
memmove( sslHandleList+i, sslHandleList+i+1, ( sslHandleCount-i )*sizeof( JABBER_SSL_MAPPING ));
sslHandleList = ( JABBER_SSL_MAPPING * ) mir_realloc( sslHandleList, sslHandleCount*sizeof( JABBER_SSL_MAPPING ));
LeaveCriticalSection( &sslHandleMutex );
}
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