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dll: FspAccessCheckEx

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This commit is contained in:
Bill Zissimopoulos 2016-01-19 18:46:23 -08:00
parent 008178a21c
commit 642a7d9a7b
2 changed files with 10 additions and 3 deletions
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8
src/dll/create.c
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@ -60,7 +60,9 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
DWORD FileAttributes; DWORD FileAttributes;
PSECURITY_DESCRIPTOR SecurityDescriptor = 0; PSECURITY_DESCRIPTOR SecurityDescriptor = 0;
SIZE_T SecurityDescriptorSize; SIZE_T SecurityDescriptorSize;
DWORD PrivilegeSetLength = 0; UINT8 PrivilegeSetBuf[sizeof(PRIVILEGE_SET) + 15 * sizeof(LUID_AND_ATTRIBUTES)];
PPRIVILEGE_SET PrivilegeSet = (PVOID)PrivilegeSetBuf;
DWORD PrivilegeSetLength = sizeof PrivilegeSetBuf;
DWORD TraverseAccess; DWORD TraverseAccess;
BOOL AccessStatus; BOOL AccessStatus;
@ -104,7 +106,7 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
if (0 < SecurityDescriptorSize) if (0 < SecurityDescriptorSize)
{ {
if (AccessCheck(SecurityDescriptor, (HANDLE)Request->Req.Create.AccessToken, FILE_TRAVERSE, if (AccessCheck(SecurityDescriptor, (HANDLE)Request->Req.Create.AccessToken, FILE_TRAVERSE,
&FspFileGenericMapping, 0, &PrivilegeSetLength, &TraverseAccess, &AccessStatus)) &FspFileGenericMapping, PrivilegeSet, &PrivilegeSetLength, &TraverseAccess, &AccessStatus))
Result = AccessStatus ? STATUS_SUCCESS : STATUS_ACCESS_DENIED; Result = AccessStatus ? STATUS_SUCCESS : STATUS_ACCESS_DENIED;
else else
Result = FspNtStatusFromWin32(GetLastError()); Result = FspNtStatusFromWin32(GetLastError());
@ -124,7 +126,7 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
if (0 < SecurityDescriptorSize) if (0 < SecurityDescriptorSize)
{ {
if (AccessCheck(SecurityDescriptor, (HANDLE)Request->Req.Create.AccessToken, DesiredAccess, if (AccessCheck(SecurityDescriptor, (HANDLE)Request->Req.Create.AccessToken, DesiredAccess,
&FspFileGenericMapping, 0, &PrivilegeSetLength, PGrantedAccess, &AccessStatus)) &FspFileGenericMapping, PrivilegeSet, &PrivilegeSetLength, PGrantedAccess, &AccessStatus))
Result = AccessStatus ? STATUS_SUCCESS : STATUS_ACCESS_DENIED; Result = AccessStatus ? STATUS_SUCCESS : STATUS_ACCESS_DENIED;
else else
Result = FspNtStatusFromWin32(GetLastError()); Result = FspNtStatusFromWin32(GetLastError());

5
tst/winfsp-tests/create-test.c
View File

@ -25,6 +25,11 @@ void create_dotest(ULONG Flags, PWSTR Prefix)
ASSERT(INVALID_HANDLE_VALUE != Handle); ASSERT(INVALID_HANDLE_VALUE != Handle);
CloseHandle(Handle); CloseHandle(Handle);
Handle = CreateFileW(FilePath,
GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
ASSERT(INVALID_HANDLE_VALUE != Handle);
CloseHandle(Handle);
memfs_stop(memfs); memfs_stop(memfs);
} }