/*
* ScsiDeviceList.cpp - Class which provides information on installed devices.
*
* Author: Robert Nelson, August, 2006 <robertn@the-nelsons.org>
*
* Version $Id: ScsiDeviceList.cpp 4992 2007-06-07 14:46:43Z kerns $
*
* This file was contributed to the Bacula project by Robert Nelson.
*
* Robert Nelson has been granted a perpetual, worldwide,
* non-exclusive, no-charge, royalty-free, irrevocable copyright
* license to reproduce, prepare derivative works of, publicly
* display, publicly perform, sublicense, and distribute the original
* work contributed by Robert Nelson to the Bacula project in source
* or object form.
*
* If you wish to license contributions from Robert Nelson
* under an alternate open source license please contact
* Robert Nelson <robertn@the-nelsons.org>.
*/
/*
Bacula® - The Network Backup Solution
Copyright (C) 2006-2006 Free Software Foundation Europe e.V.
The main author of Bacula is Kern Sibbald, with contributions from
many others, a complete list can be found in the file AUTHORS.
This program is Free Software; you can redistribute it and/or
modify it under the terms of version two of the GNU General Public
License as published by the Free Software Foundation and included
in the file LICENSE.
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., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
Bacula® is a registered trademark of John Walker.
The licensor of Bacula is the Free Software Foundation Europe
(FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
Switzerland, email:ftf@fsfeurope.org.
*/
#if defined(_MSC_VER) && defined(_DEBUG)
#include <afx.h>
#else
#include <windows.h>
#endif
#include <stdio.h>
#include <tchar.h>
#include "ScsiDeviceList.h"
#if defined(_MSC_VER) && defined(_DEBUG)
#define new DEBUG_NEW
#endif
TCHAR CScsiDeviceList::c_ScsiPath[] = _T("HARDWARE\\DEVICEMAP\\Scsi");
LPCTSTR CScsiDeviceList::c_lpszFormatList[] =
{
_T("Logical Unit Id %d"),
_T("Target Id %d"),
_T("Scsi Bus %d"),
_T("Scsi Port %d")
};
LPCTSTR CScsiDeviceListEntry::c_DeviceTypes[] =
{
_T("Unknown"),
_T("CDRom"),
_T("Changer"),
_T("Disk"),
_T("Tape")
};
CScsiDeviceListEntry::CScsiDeviceListEntry(const CScsiDeviceListEntry &other)
{
m_eDeviceType = other.m_eDeviceType;
m_lpszIdentifier = other.m_lpszIdentifier != NULL ? _tcsdup(other.m_lpszIdentifier) : NULL;
m_lpszDeviceName = other.m_lpszDeviceName != NULL ? _tcsdup(other.m_lpszDeviceName) : NULL;
m_dwDeviceId = other.m_dwDeviceId;
_tcscpy(m_szDevicePath, other.m_szDevicePath);
}
CScsiDeviceListEntry::CScsiDeviceListEntry(void)
{
m_eDeviceType = Unknown;
m_lpszIdentifier = NULL;
m_lpszDeviceName = NULL;
m_dwDeviceId = 0;
m_szDevicePath[0] = _T('\0');
}
CScsiDeviceListEntry::~CScsiDeviceListEntry(void)
{
if (m_lpszIdentifier != NULL)
{
free(m_lpszIdentifier);
}
if (m_lpszDeviceName != NULL)
{
free(m_lpszDeviceName);
}
}
bool
CScsiDeviceList::Populate()
{
this->clear();
HKEY hScsiKey;
_tcscpy(m_szLastKey, _T("\\Scsi"));
m_dwLastKeyLength = 5;
m_lLastError = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
c_ScsiPath,
0,
KEY_READ,
&hScsiKey);
if (m_lLastError != ERROR_SUCCESS) {
_tcscpy(m_szLastOperation, _T("Opening key "));
_tcscpy(m_szLastKey, c_ScsiPath);
return false;
}
if (!ProcessKey(hScsiKey, c_MaxKeyDepth - 1, 0)) {
return false;
}
#if defined(_DEBUG)
_fputtc(_T('\n'), stderr);
#endif
return true;
}
bool
CScsiDeviceList::ProcessKey(HKEY hKey, int iLevel, DWORD dwDeviceId)
{
#if defined(_DEBUG)
switch (iLevel)
{
case 3:
_ftprintf( stderr,
_T("%-64s\n"),
&m_szLastKey[1]);
break;
case 2:
_ftprintf( stderr,
_T("%-64s%d\n"),
&m_szLastKey[1],
dwDeviceId & 0xFF);
break;
case 1:
_ftprintf( stderr,
_T("%-64s%d:%d\n"),
&m_szLastKey[1],
(dwDeviceId >> 8) & 0xFF,
dwDeviceId & 0xFF);
break;
case 0:
_ftprintf( stderr,
_T("%-64s%d:%d:%d\n"),
&m_szLastKey[1],
(dwDeviceId >> 16) & 0xFF,
(dwDeviceId >> 8) & 0xFF,
dwDeviceId & 0xFF);
break;
}
#endif
for (int idxSubkey = 0; ; idxSubkey++) {
TCHAR szSubkeyName[c_MaxSubkeyLength + 1];
DWORD dwLength;
dwLength = sizeof(szSubkeyName);
m_lLastError = RegEnumKeyEx( hKey,
idxSubkey,
szSubkeyName,
&dwLength,
NULL,
NULL,
NULL,
NULL);
if (m_lLastError == ERROR_NO_MORE_ITEMS) {
break;
} else if (m_lLastError == ERROR_MORE_DATA) {
#if defined(_DEBUG)
_tcscpy(m_szLastOperation, _T("Enumerating subkeys of "));
PrintLastError();
#endif
// Subkey name is too long
continue;
} else if (m_lLastError != ERROR_SUCCESS) {
// Unexpected Error
_tcscpy(m_szLastOperation, _T("Enumerating subkeys of "));
return false;
}
int iValue;
if (_stscanf(szSubkeyName, c_lpszFormatList[iLevel], &iValue) != 1) {
// Ignore this subkey, it is probably Initiator Id n
continue;
}
m_szLastKey[m_dwLastKeyLength++] = _T('\\');
DWORD dwSubkeyLength = (DWORD)_tcslen(szSubkeyName);
memcpy(&m_szLastKey[m_dwLastKeyLength], szSubkeyName, (dwSubkeyLength + 1) * sizeof(TCHAR));
m_dwLastKeyLength += dwSubkeyLength;
HKEY hSubkey;
m_lLastError = RegOpenKeyEx(hKey, szSubkeyName, 0, KEY_READ, &hSubkey);
if (m_lLastError != ERROR_SUCCESS) {
_tcscpy(m_szLastOperation, _T("Opening key "));
return false;
}
if (iLevel == 0) {
#if defined(_DEBUG)
_ftprintf( stderr,
_T("%-64s%d:%d:%d:%d\n"),
&m_szLastKey[1],
(dwDeviceId >> 16) & 0xFF,
(dwDeviceId >> 8) & 0xFF,
dwDeviceId & 0xFF,
iValue);
#endif
ProcessValues(hSubkey, (dwDeviceId << 8) | iValue);
} else {
if (!ProcessKey(hSubkey, iLevel - 1, (dwDeviceId << 8) | iValue)) {
return false;
}
}
m_dwLastKeyLength -= dwSubkeyLength;
m_dwLastKeyLength--;
m_szLastKey[m_dwLastKeyLength] = _T('\0');
}
return true;
}
bool
CScsiDeviceList::ProcessValues(HKEY hKey, DWORD dwDeviceId)
{
CScsiDeviceListEntry EntryTemplate;
DWORD dwType;
DWORD dwSize;
TCHAR szValue[c_MaxValueLength + 1];
this->push_back(EntryTemplate);
CScsiDeviceListEntry & entry = this->back();
dwSize = sizeof(szValue);
m_lLastError = RegQueryValueEx( hKey,
_T("Identifier"),
NULL,
&dwType,
(LPBYTE)&szValue[0],
&dwSize);
if (m_lLastError == ERROR_SUCCESS) {
entry.m_lpszIdentifier = _tcsdup(szValue);
} else {
#if defined(_DEBUG)
_tcscpy(m_szLastOperation, _T("Reading value "));
PrintLastError(_T("Identifier"));
#endif
}
dwSize = sizeof(szValue);
m_lLastError = RegQueryValueEx( hKey,
_T("DeviceName"),
NULL,
&dwType,
(LPBYTE)&szValue[0],
&dwSize);
if (m_lLastError == ERROR_SUCCESS) {
entry.m_lpszDeviceName = _tcsdup(szValue);
} else {
#if defined(_DEBUG)
_tcscpy(m_szLastOperation, _T("Reading value "));
PrintLastError(_T("DeviceName"));
#endif
}
dwSize = sizeof(szValue);
m_lLastError = RegQueryValueEx( hKey,
_T("Type"),
NULL,
&dwType,
(LPBYTE)&szValue[0],
&dwSize);
if (m_lLastError == ERROR_SUCCESS) {
if (_tcscmp(_T("CdRomPeripheral"), szValue) == 0) {
entry.m_eDeviceType = CScsiDeviceListEntry::CDRom;
} else if (_tcscmp(_T("DiskPeripheral"), szValue) == 0) {
entry.m_eDeviceType = CScsiDeviceListEntry::Disk;
} else if (_tcscmp(_T("MediumChangerPeripheral"), szValue) == 0) {
entry.m_eDeviceType = CScsiDeviceListEntry::Changer;
} else if (_tcscmp(_T("TapePeripheral"), szValue) == 0) {
entry.m_eDeviceType = CScsiDeviceListEntry::Tape;
}
} else {
#if defined(_DEBUG)
_tcscpy(m_szLastOperation, _T("Reading value "));
PrintLastError(_T("Type"));
#endif
}
entry.m_dwDeviceId = dwDeviceId;
return true;
}
void
CScsiDeviceList::PrintLastError(LPTSTR lpszName)
{
LPTSTR lpszMessage = NULL;
_fputts(_T("Error: "), stderr);
_fputts(m_szLastOperation, stderr);
_fputtc(_T('"'), stderr);
_fputts(lpszName != NULL ? lpszName : m_szLastKey, stderr);
_fputts(_T("\" - "), stderr);
FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER,
NULL, m_lLastError, 0, (LPTSTR)&lpszMessage, 0, NULL);
if (lpszMessage != NULL) {
_fputts(lpszMessage, stderr);
LocalFree(lpszMessage);
}
}
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