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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2020-06-29 00:45:24 +0200
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2020-06-29 00:59:54 +0200
commit14fa3de4b67fbb23766810fe6ae4067eada6fcb4 (patch)
tree5e5491bea3652cedb53639015a8762815ec9d801
parent7ee5c671e9573d90b89aedc11a289ae752700fd7 (diff)
downloadVeraCrypt-14fa3de4b67fbb23766810fe6ae4067eada6fcb4.tar.gz
VeraCrypt-14fa3de4b67fbb23766810fe6ae4067eada6fcb4.zip
Windows: Fallback to Windows native formatting tool if we fail to format a volume as NTFS/exFAT/ReFS using FormatEx function from fmifs.dll
Diffstat
-rw-r--r--src/Common/Format.c154
-rw-r--r--src/Common/Format.h1
2 files changed, 153 insertions, 2 deletions
diff --git a/src/Common/Format.c b/src/Common/Format.c
index da6054e6..76923c6b 100644
--- a/src/Common/Format.c
+++ b/src/Common/Format.c
@@ -762,7 +762,7 @@ error:
}
mountOptions.ReadOnly = FALSE;
- mountOptions.Removable = FALSE;
+ mountOptions.Removable = TRUE; /* mount as removal media to allow formatting without admin rights */
mountOptions.ProtectHiddenVolume = FALSE;
mountOptions.PreserveTimestamp = bPreserveTimestamp;
mountOptions.PartitionInInactiveSysEncScope = FALSE;
@@ -778,7 +778,7 @@ error:
nStatus = ERR_VOL_MOUNT_FAILED;
goto fv_end;
}
-
+
if (!Silent && !IsAdmin () && IsUacSupported ())
retCode = UacFormatFs (volParams->hwndDlg, driveNo, volParams->clusterSize, fsType);
else
@@ -786,6 +786,12 @@ error:
if (retCode != TRUE)
{
+ /* fallback to calling Windows native formatting tool */
+ retCode = ExternalFormatFs (driveNo, volParams->clusterSize, fsType);
+ }
+
+ if (retCode != TRUE)
+ {
if (!UnmountVolumeAfterFormatExCall (volParams->hwndDlg, driveNo) && !Silent)
MessageBoxW (volParams->hwndDlg, GetString ("CANT_DISMOUNT_VOLUME"), lpszTitle, ICON_HAND);
@@ -1094,6 +1100,150 @@ BOOL FormatNtfs (int driveNo, int clusterSize)
return FormatFs (driveNo, clusterSize, FILESYS_NTFS);
}
+/* call Windows format.com program to perform formatting */
+BOOL ExternalFormatFs (int driveNo, int clusterSize, int fsType)
+{
+ wchar_t exePath[MAX_PATH] = {0};
+ HANDLE hChildStd_IN_Rd = NULL;
+ HANDLE hChildStd_IN_Wr = NULL;
+ HANDLE hChildStd_OUT_Rd = NULL;
+ HANDLE hChildStd_OUT_Wr = NULL;
+ WCHAR szFsFormat[16];
+ TCHAR szCmdline[2 * MAX_PATH];
+ STARTUPINFO siStartInfo;
+ PROCESS_INFORMATION piProcInfo;
+ BOOL bSuccess = FALSE;
+ SECURITY_ATTRIBUTES saAttr;
+
+ switch (fsType)
+ {
+ case FILESYS_NTFS:
+ StringCchCopyW (szFsFormat, ARRAYSIZE (szFsFormat),L"NTFS");
+ break;
+ case FILESYS_EXFAT:
+ StringCchCopyW (szFsFormat, ARRAYSIZE (szFsFormat),L"exFAT");
+ break;
+ case FILESYS_REFS:
+ StringCchCopyW (szFsFormat, ARRAYSIZE (szFsFormat),L"ReFS");
+ break;
+ default:
+ return FALSE;
+ }
+
+ /* Set the bInheritHandle flag so pipe handles are inherited. */
+ saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
+ saAttr.bInheritHandle = TRUE;
+ saAttr.lpSecurityDescriptor = NULL;
+
+ /* Create a pipe for the child process's STDOUT. */
+ if ( !CreatePipe(&hChildStd_OUT_Rd, &hChildStd_OUT_Wr, &saAttr, 0) )
+ return FALSE;
+
+ /* Ensure the read handle to the pipe for STDOUT is not inherited. */
+ /* Create a pipe for the child process's STDIN. */
+ if ( !SetHandleInformation(hChildStd_OUT_Rd, HANDLE_FLAG_INHERIT, 0)
+ || !CreatePipe(&hChildStd_IN_Rd, &hChildStd_IN_Wr, &saAttr, 0))
+ {
+ CloseHandle (hChildStd_OUT_Rd);
+ CloseHandle (hChildStd_OUT_Wr);
+ return FALSE;
+ }
+
+ /* Ensure the write handle to the pipe for STDIN is not inherited. */
+ if ( !SetHandleInformation(hChildStd_IN_Wr, HANDLE_FLAG_INHERIT, 0))
+ {
+ CloseHandle (hChildStd_OUT_Rd);
+ CloseHandle (hChildStd_OUT_Wr);
+ CloseHandle (hChildStd_IN_Rd);
+ CloseHandle (hChildStd_IN_Wr);
+ return FALSE;
+ }
+
+ if (GetSystemDirectory (exePath, MAX_PATH))
+ {
+ StringCchCatW(exePath, ARRAYSIZE(exePath), L"\\format.com");
+ }
+ else
+ StringCchCopyW(exePath, ARRAYSIZE(exePath), L"C:\\Windows\\System32\\format.com");
+
+ StringCbPrintf (szCmdline, sizeof(szCmdline), L"%s %c: /FS:%s /Q /X /V:\"\"", exePath, (WCHAR) driveNo + L'A', szFsFormat);
+
+ if (clusterSize)
+ {
+ WCHAR szSize[8];
+ uint32 unitSize = (uint32) clusterSize * FormatSectorSize;
+ if (unitSize <= 8192)
+ StringCbPrintf (szSize, sizeof (szSize), L"%d", unitSize);
+ else if (unitSize < BYTES_PER_MB)
+ {
+ StringCbPrintf (szSize, sizeof (szSize), L"%dK", unitSize / BYTES_PER_KB);
+ }
+ else
+ StringCbPrintf (szSize, sizeof (szSize), L"%dM", unitSize / BYTES_PER_MB);
+
+ StringCbCat (szCmdline, sizeof (szCmdline), L" /A:");
+ StringCbCat (szCmdline, sizeof (szCmdline), szSize);
+ }
+
+
+ ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION) );
+
+ /* Set up members of the STARTUPINFO structure.
+ This structure specifies the STDIN and STDOUT handles for redirection.
+ */
+ ZeroMemory( &siStartInfo, sizeof(STARTUPINFO) );
+ siStartInfo.cb = sizeof(STARTUPINFO);
+ siStartInfo.hStdError = hChildStd_OUT_Wr;
+ siStartInfo.hStdOutput = hChildStd_OUT_Wr;
+ siStartInfo.hStdInput = hChildStd_IN_Rd;
+ siStartInfo.dwFlags |= STARTF_USESTDHANDLES;
+
+ /* Create the child process. */
+ bSuccess = CreateProcess(NULL,
+ szCmdline, // command line
+ NULL, // process security attributes
+ NULL, // primary thread security attributes
+ TRUE, // handles are inherited
+ 0, // creation flags
+ NULL, // use parent's environment
+ NULL, // use parent's current directory
+ &siStartInfo, // STARTUPINFO pointer
+ &piProcInfo); // receives PROCESS_INFORMATION
+
+ if (bSuccess)
+ {
+ /* Unblock the format process by simulating hit on ENTER key */
+ DWORD dwExitCode, dwWritten;
+ LPCSTR newLine = "\n";
+
+ WriteFile(hChildStd_IN_Wr, (LPCVOID) newLine, 1, &dwWritten, NULL);
+
+ /* wait for the format process to finish */
+ WaitForSingleObject (piProcInfo.hProcess, INFINITE);
+
+ /* check if it was successfull */
+ if (GetExitCodeProcess (piProcInfo.hProcess, &dwExitCode))
+ {
+ if (dwExitCode == 0)
+ bSuccess = TRUE;
+ else
+ bSuccess = FALSE;
+ }
+ else
+ bSuccess = FALSE;
+
+ CloseHandle (piProcInfo.hThread);
+ CloseHandle (piProcInfo.hProcess);
+ }
+
+ CloseHandle(hChildStd_OUT_Wr);
+ CloseHandle(hChildStd_OUT_Rd);
+ CloseHandle(hChildStd_IN_Rd);
+ CloseHandle(hChildStd_IN_Wr);
+
+ return bSuccess;
+}
+
BOOL WriteSector (void *dev, char *sector,
char *write_buf, int *write_buf_cnt,
__int64 *nSecNo, PCRYPTO_INFO cryptoInfo)
diff --git a/src/Common/Format.h b/src/Common/Format.h
index 4ce1b8c7..139607e5 100644
--- a/src/Common/Format.h
+++ b/src/Common/Format.h
@@ -76,6 +76,7 @@ extern int FormatWriteBufferSize;
int TCFormatVolume (volatile FORMAT_VOL_PARAMETERS *volParams);
BOOL FormatNtfs (int driveNo, int clusterSize);
BOOL FormatFs (int driveNo, int clusterSize, int fsType);
+BOOL ExternalFormatFs (int driveNo, int clusterSize, int fsType);
uint64 GetVolumeDataAreaSize (BOOL hiddenVolume, uint64 volumeSize);
int FormatNoFs (HWND hwndDlg, unsigned __int64 startSector, __int64 num_sectors, void *dev, PCRYPTO_INFO cryptoInfo, BOOL quickFormat);
BOOL WriteSector ( void *dev , char *sector , char *write_buf , int *write_buf_cnt , __int64 *nSecNo , PCRYPTO_INFO cryptoInfo );