/*	Blowfish Encryption Plugin for Back Orifice 2000    
	Copyright (C) 1999, talis 

	parts of this module are taken from various sample modules from
	dildog(structure, plugin archicture), from Maw~(IDEA module 
	structure and layout).  Code for some of the blowfish algoritms
	was gleaned from studying the blowfish encryption bits from 
	ssleay, openbsd, and from counterpane

    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

	The author of this program may be contacted at talis@millcomm.com. 
*/
#include<windows.h>
#include<plugins.h>
#include<bocomreg.h>
#include<iohandler.h>
#include<encryption.h>
#include"Blowfish.h"

// ---------------- Global Linkage Variables -----------------
CEncryptionHandler				*g_pEncHandler=NULL;
CIOHandler						*g_pIOHandler=NULL;
CAuthHandler					*g_pAuthHandler=NULL;
TYPEOF_RegisterCommand			*RegisterCommand=NULL;
TYPEOF_UnregisterCommand		*UnregisterCommand=NULL;
TYPEOF_RegisterClientMenu		*RegisterClientMenu=NULL;
TYPEOF_UnregisterClientMenu		*UnregisterClientMenu=NULL;
TYPEOF_IssueAuthCommandRequest	*IssueAuthCommandRequest=NULL;
TYPEOF_IssueAuthCommandReply	*IssueAuthCommandReply=NULL;
TYPEOF_ConnectAuthSocket		*ConnectAuthSocket=NULL;
TYPEOF_ListenAuthSocket			*ListenAuthSocket=NULL;
TYPEOF_InteractiveConnect		*InteractiveConnect=NULL;
TYPEOF_InteractiveListen		*InteractiveListen=NULL;

#pragma comment(linker,"/section:.rdata,RW")
//#pragma comment(linker,"/section:.edata,RW")
#pragma comment(linker,"/section:.data,RW")



// ------------- Function Implementations ------------------

HINSTANCE g_hInstance;
BOOL g_bActive;
int BLOWFISHEngineNum;						   

BOOL WINAPI DllMain(HINSTANCE hInst, ULONG ul_reason_for_call, LPVOID lpReserved)
{
	switch (ul_reason_for_call) 
	{
	case DLL_PROCESS_ATTACH:
		g_hInstance=hInst;
		break;
	}
	return TRUE;
}

BOOL InstallPlugin(PLUGIN_LINKAGE pl)
{
	g_bActive=TRUE;
	g_pEncHandler=pl.pEncryptionHandler;
	g_pIOHandler=pl.pIOHandler;
	g_pAuthHandler=pl.pAuthHandler;
	RegisterCommand=pl.pRegisterCommand;
	UnregisterCommand=pl.pUnregisterCommand;
	IssueAuthCommandRequest=pl.pIssueAuthCommandRequest;
	IssueAuthCommandReply=pl.pIssueAuthCommandReply;
	ConnectAuthSocket=pl.pConnectAuthSocket;
	ListenAuthSocket=pl.pListenAuthSocket;
	RegisterClientMenu=pl.pRegisterClientMenu;
	UnregisterClientMenu=pl.pUnregisterClientMenu;
	InteractiveListen=pl.pInteractiveListen;
	InteractiveConnect=pl.pInteractiveConnect;
	if (g_pEncHandler)
	{
		BLOWFISHEngineNum = g_pEncHandler->Insert(GetBlowfishEngine());
		if (BLOWFISHEngineNum==-1) return FALSE;
	}
	else return FALSE;
	return TRUE;
}

void TerminatePlugin(void)
{
	g_bActive=FALSE;
	if (g_pEncHandler)
	{
		g_pEncHandler->Remove(BLOWFISHEngineNum);
	}
}

BOOL PluginVersion(PLUGIN_VERSION *ppv)
{
	ppv->svFilename="boBlowfish.dll";
	ppv->svDescription="BO2K Blowfish Module";
	ppv->wVersionHi=1;
	ppv->wVersionLo=1;
	ppv->wBOVersionHi=1;
	ppv->wBOVersionLo=1;
	return TRUE;
}