windows-server-2003/net/sfm/uam/macsource/uam_common/uamnetwork.cpp

// ===========================================================================
//	UAMNetwork.c 			� 1998-2001 Microsoft Corp. All rights reserved.
// ===========================================================================
// 	Networking functions for use by Microsoft User Authentication Method.
//
//	There are several versions of authentication used by the UAM to an SFM
//	server. Here is the matrix which shows which Microsoft AFP encryption
//	version will be used depending on the server version.
//
//	Server Version		Auth	Chng Pswd		Notes
//	--------------		----	---------		---------------
//	NT 4.0				1.0		1.0				Weakest, LM Hash only
//	Win2K				2.0		2.0				NTLMv2 auth, LM Hash for chgn pswd
//	.NET				2.0		3.0				Strongest, using NTLMv2 for both
//
// ===========================================================================

#ifdef UAM_TARGET_CARBON
#include <CoreFoundation/CoreFoundation.h>
#include <Carbon/Carbon.h>
#endif

#include <macssp.h>

#include <String.h>
#include <macstrsafe.h>

#include "UAMMain.h"
#include "UAMEncrypt.h"
#include "UAMDebug.h"
#include "UAMNetwork.h"
#include "UAMUtils.h"
#include "UAMDLOGUtils.h"
#include "UAMDialogs.h"
#include "UAMKeychain.h"
#include "UAMPrefs.h"

unsigned char				gCmdBuffer[kMaxAFPCommand];
unsigned char				gReplyBuffer[kMaxAFPCommand];
MSUAMLoginReplyBlock		gMSUAMReply;

extern Str32 				gAFPVersion;
extern OTAddress			*gServerAddress;
extern long					gSupportedUAMs;
extern UInt32				gExpirationTime;
extern Str32				gServerName;
extern Boolean				gGuestLogon;
extern DialogPtr			gDialog;
extern UAM_PREFERENCES		gUAMPreferences;

// ---------------------------------------------------------------------------
//		� UAM_MapCharactersIntoHostSet()
// ---------------------------------------------------------------------------
//	Given a counted string, and a "host mapping table", do an in-place conversion
//	of that string into the host character set.  The table is construed to be
//	of length 255 - StartingExtendedCharValue chars long, and a character for
//	character conversion will be indicated for any chars in targetStr which 
//	are equal to or in excess of StartingExtendedCharValue.

Boolean UAM_MapCharactersIntoHostSet(char *szTarg, char *mappingTbl)
{
	unsigned char c;
		
	while (*szTarg)	
	{
		if ((unsigned char)*szTarg >= (unsigned char)kStartingExtendedCharValue)
		{
			c = *(mappingTbl+ (unsigned char)*szTarg - kStartingExtendedCharValue);
			if (c == kIllegalMappedExtChar) {
				DbgPrint_((DBGBUFF, "Illegal mapping character"));
				return(false);
			}
			else {
				*szTarg = c;
			}
		}
		
		szTarg++;
	}
			
	return(true);
}


#pragma mark-
// ---------------------------------------------------------------------------
//		� UAM_UAMLogin()
// ---------------------------------------------------------------------------
//	This routine does the actual logging onto the server.

OSStatus UAM_UAMLogin(UAMArgs *inUAMArgs)
{
	OSStatus	theError 	= noErr;
	Boolean		theLoop		= true;
	CursHandle	theCursor;
	
	Assert_(inUAMArgs != NULL);
							
	do
	{
		theCursor = GetCursor(watchCursor);
		SetCursor(*theCursor);
				
		if (gGuestLogon) {
			theError = UAM_LoginGuest(inUAMArgs);
		}
		else {
        	SspDebugPrintHex(
        			(char*)inUAMArgs->Opt.pwDlg.userName,
        			PSTR_LENGTH(inUAMArgs->Opt.pwDlg.userName)+1
        			);
        	SspDebugPrintHex(
        			(char*)inUAMArgs->Opt.pwDlg.password,
        			strlen((char*)inUAMArgs->Opt.pwDlg.password)
        			);

        	//
        	//The password buffer in UAMArgs is always in C style form. The encryption
        	//routines expect it to be in pascal style, so we convert it before we
        	//send it on.
        	//
        	if (strlen((char*)inUAMArgs->Opt.pwDlg.password) != 0)
        	{
        		_c2pstr((char*)inUAMArgs->Opt.pwDlg.password);
        	}

			theError = UAM_LoginMSUAM(inUAMArgs);
		}
		
		if (theError != noErr)
		{
			//
			//For whatever reason, we couldn't log into the server, handle the most
			//basic errors and try to logon again by presenting the login dialog
			//again.