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/** BEGIN COPYRIGHT BLOCK
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/******************************************************
*
* ntuserpin.c - Prompts for the key
* database passphrase.
*
******************************************************/
#if defined( _WIN32 ) && defined ( NET_SSL )
#include <windows.h>
#include "ntwatchdog.h"
#include "slapi-plugin.h"
#include "fe.h"
#undef Debug
#undef OFF
#undef LITTLE_ENDIAN
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include "slap.h"
#include "fe.h"
static int i=0;
static int cbRemotePassword = 0;
extern char* NT_PromptForPin(const char *tokenName);
static const char nt_retryWarning[] =
"Warning: You entered an incorrect PIN. Incorrect PIN may result in disabling the token";
struct SVRCORENTUserPinObj
{
SVRCOREPinObj base;
};
static const struct SVRCOREPinMethods vtable;
/* ------------------------------------------------------------ */
SVRCOREError
SVRCORE_CreateNTUserPinObj(SVRCORENTUserPinObj **out)
{
SVRCOREError err = 0;
SVRCORENTUserPinObj *obj = 0;
do {
obj = (SVRCORENTUserPinObj*)malloc(sizeof (SVRCORENTUserPinObj));
if (!obj) { err = 1; break; }
obj->base.methods = &vtable;
} while(0);
if (err)
{
SVRCORE_DestroyNTUserPinObj(obj);
obj = 0;
}
*out = obj;
return err;
}
void
SVRCORE_DestroyNTUserPinObj(SVRCORENTUserPinObj *obj)
{
if (obj) free(obj);
}
static void destroyObject(SVRCOREPinObj *obj)
{
SVRCORE_DestroyNTUserPinObj((SVRCORENTUserPinObj*)obj);
}
/* First try to retrieve the password from the watchdog,
if this is not available, prompt for the passphrase. */
static char *getPin(SVRCOREPinObj *obj, const char *tokenName, PRBool retry)
{
HWND hwndRemote;
char *szRemotePassword = NULL;
HANDLE hRemoteProcess;
DWORD dwNumberOfBytesRead=0;
DWORD dwNumberOfBytesWritten=0;
PK11_PIN *buf= NULL;
char *password = NULL;
char pin[MAX_PASSWORD];
BOOL ret;
DWORD err = 0;
// Find Watchdog application window
if( pszServerName && (hwndRemote = FindWindow("slapd", pszServerName)) &&
(hRemoteProcess = (HANDLE)GetWindowLong( hwndRemote,
GWL_PROCESS_HANDLE)))
{
cbRemotePassword = GetWindowLong(hwndRemote, GWL_PASSWORD_LENGTH);
szRemotePassword = (HANDLE)GetWindowLong(hwndRemote, GWL_PASSWORD_ADDR);
// if retry, don't get the pin from watchdog
if (retry)
{
MessageBox(GetDesktopWindow(), nt_retryWarning,
"Brandx Server", MB_ICONEXCLAMATION | MB_OK);
} else {
if((cbRemotePassword != 0) && (szRemotePassword != 0))
{
buf = (PK11_PIN *)slapi_ch_malloc(sizeof
(PK11_PIN)*cbRemotePassword);
if(ReadProcessMemory(hRemoteProcess, szRemotePassword,
(LPVOID)buf,sizeof(PK11_PIN)*cbRemotePassword ,
&dwNumberOfBytesRead))
{
for (i=0; i < cbRemotePassword; i++) {
if (strncmp (tokenName, buf[i].TokenName,
buf[i].TokenLength)==0)
{
memset(pin, '\0', MAX_PASSWORD);
PL_strncpyz (pin, buf[i].Password, sizeof(pin));
slapi_ch_free ((void **) &buf);
return slapi_ch_strdup(pin);
}
}
}
}
}
}
/* Didn't get the password from Watchdog, or this is a retry,
prompt the user. */
password = NT_PromptForPin(tokenName);
/* Store the password back to nt watchdog */
if (password != NULL && hwndRemote && hRemoteProcess)
{
slapi_ch_free ((void **) &buf);
buf = (PK11_PIN *)slapi_ch_malloc(sizeof(PK11_PIN));
PL_strncpyz (buf[0].TokenName, tokenName, sizeof(buf[0].TokenName));
buf[0].TokenLength=strlen(buf[0].TokenName);
PL_strncpyz (buf[0].Password, password, sizeof(buf[0].Password));
buf[0].PasswordLength=strlen(buf[0].Password);
if (i== cbRemotePassword)
{
/* Add a new token and password to the end of the table.*/
SetWindowLong(hwndRemote, GWL_PASSWORD_LENGTH,
(LONG)cbRemotePassword+1);
ret = WriteProcessMemory(hRemoteProcess,
szRemotePassword+cbRemotePassword*sizeof(PK11_PIN),
(LPVOID)buf, sizeof(PK11_PIN), &dwNumberOfBytesWritten);
if( !ret )
err = GetLastError();
} else {
/* This is a retry due to a wrong password stored in watchdog. */
ret = WriteProcessMemory(hRemoteProcess,
szRemotePassword+i*sizeof(PK11_PIN),(LPVOID)buf,
sizeof(PK11_PIN), &dwNumberOfBytesWritten);
if( !ret )
err = GetLastError();
}
}
slapi_ch_free ((void **) &buf);
return (password);
}
/*
* VTable
*/
static const SVRCOREPinMethods vtable =
{ 0, 0, destroyObject, getPin };
#endif /* defined( _WIN32 ) && defined ( NET_SSL ) */
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