2 Bacula® - The Network Backup Solution
4 Copyright (C) 2005-2008 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version two of the GNU General Public
10 License as published by the Free Software Foundation and included
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of Kern Sibbald.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
28 // vss.cpp -- Interface to Volume Shadow Copies (VSS)
30 // Copyright transferred from MATRIX-Computer GmbH to
31 // Kern Sibbald by express permission.
33 // Author : Thorsten Engel
34 // Created On : Fri May 06 21:44:00 2005
46 VSSClient *g_pVSSClient;
48 // {b5946137-7b9f-4925-af80-51abd60b20d5}
50 static const GUID VSS_SWPRV_ProviderID =
51 { 0xb5946137, 0x7b9f, 0x4925, { 0xaf, 0x80, 0x51, 0xab, 0xd6, 0x0b, 0x20, 0xd5 } };
58 delete (g_pVSSClient);
64 /* decide which vss class to initialize */
65 if (g_MajorVersion == 5) {
66 switch (g_MinorVersion) {
68 g_pVSSClient = new VSSClientXP();
72 g_pVSSClient = new VSSClient2003();
76 /* Vista or Longhorn or later */
77 // } else if (g_MajorVersion == 6 && g_MinorVersion == 0) {
78 } else if (g_MajorVersion >= 6) {
79 g_pVSSClient = new VSSClientVista();
86 VSSPathConvert(const char *szFilePath, char *szShadowPath, int nBuflen)
88 return g_pVSSClient->GetShadowPath(szFilePath, szShadowPath, nBuflen);
92 VSSPathConvertW(const wchar_t *szFilePath, wchar_t *szShadowPath, int nBuflen)
94 return g_pVSSClient->GetShadowPathW(szFilePath, szShadowPath, nBuflen);
98 VSSClient::VSSClient()
100 m_bCoInitializeCalled = false;
101 m_bCoInitializeSecurityCalled = false;
102 m_dwContext = 0; // VSS_CTX_BACKUP;
103 m_bDuringRestore = false;
104 m_bBackupIsInitialized = false;
106 m_pAlistWriterState = New(alist(10, not_owned_by_alist));
107 m_pAlistWriterInfoText = New(alist(10, owned_by_alist));
108 m_uidCurrentSnapshotSet = GUID_NULL;
109 memset(m_wszUniqueVolumeName, 0, sizeof(m_wszUniqueVolumeName));
110 memset(m_szShadowCopyName, 0, sizeof(m_szShadowCopyName));
114 VSSClient::~VSSClient()
116 // Release the IVssBackupComponents interface
117 // WARNING: this must be done BEFORE calling CoUninitialize()
119 m_pVssObject->Release();
124 delete (alist*)m_pAlistWriterState;
125 delete (alist*)m_pAlistWriterInfoText;
127 // Call CoUninitialize if the CoInitialize was performed successfully
128 if (m_bCoInitializeCalled)
132 BOOL VSSClient::InitializeForBackup()
134 //return Initialize (VSS_CTX_BACKUP);
135 return Initialize(0);
141 BOOL VSSClient::GetShadowPath(const char *szFilePath, char *szShadowPath, int nBuflen)
143 if (!m_bBackupIsInitialized)
146 /* check for valid pathname */
149 bIsValidName = strlen(szFilePath) > 3;
151 bIsValidName &= isalpha (szFilePath[0]) &&
152 szFilePath[1]==':' &&
153 szFilePath[2] == '\\';
156 int nDriveIndex = toupper(szFilePath[0])-'A';
157 if (m_szShadowCopyName[nDriveIndex][0] != 0) {
159 if (WideCharToMultiByte(CP_UTF8,0,m_szShadowCopyName[nDriveIndex],-1,szShadowPath,nBuflen-1,NULL,NULL)) {
160 nBuflen -= (int)strlen(szShadowPath);
161 bstrncat(szShadowPath, szFilePath+2, nBuflen);
167 bstrncpy(szShadowPath, szFilePath, nBuflen);
172 BOOL VSSClient::GetShadowPathW(const wchar_t *szFilePath, wchar_t *szShadowPath, int nBuflen)
174 if (!m_bBackupIsInitialized)
177 /* check for valid pathname */
180 bIsValidName = wcslen(szFilePath) > 3;
182 bIsValidName &= iswalpha (szFilePath[0]) &&
183 szFilePath[1]==':' &&
184 szFilePath[2] == '\\';
187 int nDriveIndex = towupper(szFilePath[0])-'A';
188 if (m_szShadowCopyName[nDriveIndex][0] != 0) {
189 wcsncpy(szShadowPath, m_szShadowCopyName[nDriveIndex], nBuflen);
190 nBuflen -= (int)wcslen(m_szShadowCopyName[nDriveIndex]);
191 wcsncat(szShadowPath, szFilePath+2, nBuflen);
196 wcsncpy(szShadowPath, szFilePath, nBuflen);
202 const size_t VSSClient::GetWriterCount()
204 alist* pV = (alist*)m_pAlistWriterInfoText;
208 const char* VSSClient::GetWriterInfo(int nIndex)
210 alist* pV = (alist*)m_pAlistWriterInfoText;
211 return (char*)pV->get(nIndex);
215 const int VSSClient::GetWriterState(int nIndex)
217 alist* pV = (alist*)m_pAlistWriterState;
218 return (int)pV->get(nIndex);
221 void VSSClient::AppendWriterInfo(int nState, const char* pszInfo)
223 alist* pT = (alist*) m_pAlistWriterInfoText;
224 alist* pS = (alist*) m_pAlistWriterState;
226 pT->push(bstrdup(pszInfo));
227 pS->push((void*)nState);
230 void VSSClient::DestroyWriterInfo()
232 alist* pT = (alist*)m_pAlistWriterInfoText;
233 alist* pS = (alist*)m_pAlistWriterState;