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dll: fsctl: testing

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This commit is contained in:
Bill Zissimopoulos 2015-11-30 17:43:14 -08:00
parent 6f3f87e21e
commit f910f0bacc
3 changed files with 7 additions and 3 deletions
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3
inc/winfsp/fsctl.h
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@ -35,6 +35,9 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
#define FSP_FSCTL_CREATE_BUFFER_SIZE 128 #define FSP_FSCTL_CREATE_BUFFER_SIZE 128
#define FSP_FSCTL_TRANSACT_BUFFER_SIZE (16 * 1024) #define FSP_FSCTL_TRANSACT_BUFFER_SIZE (16 * 1024)
#define FSP_FSCTL_VOLUME_PARAMS_SIZE \
FSP_FSCTL_ALIGN_UP(sizeof(FSP_FSCTL_VOLUME_PARAMS), FSP_FSCTL_DEFAULT_ALIGNMENT)
#define FSP_FSCTL_TRANSACT_REQ_SIZEMAX \ #define FSP_FSCTL_TRANSACT_REQ_SIZEMAX \
FSP_FSCTL_ALIGN_UP(sizeof(FSP_FSCTL_TRANSACT_REQ) + 1024 * sizeof(WCHAR), FSP_FSCTL_DEFAULT_ALIGNMENT) FSP_FSCTL_ALIGN_UP(sizeof(FSP_FSCTL_TRANSACT_REQ) + 1024 * sizeof(WCHAR), FSP_FSCTL_DEFAULT_ALIGNMENT)
#define FSP_FSCTL_TRANSACT_RSP_SIZEMAX \ #define FSP_FSCTL_TRANSACT_RSP_SIZEMAX \

5
src/dll/fsctl.c
View File

@ -86,13 +86,14 @@ FSP_API NTSTATUS FspFsctlCreateVolume(PWSTR DevicePath,
Result = FspNtStatusFromWin32(GetLastError()); Result = FspNtStatusFromWin32(GetLastError());
goto exit; goto exit;
} }
ParamsBuf = malloc(sizeof *ParamsBuf + SecurityDescriptorSize); ParamsBuf = malloc(FSP_FSCTL_VOLUME_PARAMS_SIZE + SecurityDescriptorSize);
if (0 == ParamsBuf) if (0 == ParamsBuf)
{ {
Result = STATUS_INSUFFICIENT_RESOURCES; Result = STATUS_INSUFFICIENT_RESOURCES;
goto exit; goto exit;
} }
SecurityDescriptorBuf = (PVOID)(ParamsBuf + 1); memset(ParamsBuf, 0, FSP_FSCTL_VOLUME_PARAMS_SIZE);
SecurityDescriptorBuf = (PVOID)((PUINT8)ParamsBuf + FSP_FSCTL_VOLUME_PARAMS_SIZE);
if (!MakeSelfRelativeSD(SecurityDescriptor, SecurityDescriptorBuf, &SecurityDescriptorSize)) if (!MakeSelfRelativeSD(SecurityDescriptor, SecurityDescriptorBuf, &SecurityDescriptorSize))
{ {
Result = FspNtStatusFromWin32(GetLastError()); Result = FspNtStatusFromWin32(GetLastError());

2
src/sys/fsctl.c
View File

@ -107,7 +107,7 @@ static NTSTATUS FspFsctlCreateVolume(
ULONG OutputBufferLength = IrpSp->Parameters.FileSystemControl.OutputBufferLength; ULONG OutputBufferLength = IrpSp->Parameters.FileSystemControl.OutputBufferLength;
PVOID SystemBuffer = Irp->AssociatedIrp.SystemBuffer; PVOID SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
const FSP_FSCTL_VOLUME_PARAMS *Params = SystemBuffer; const FSP_FSCTL_VOLUME_PARAMS *Params = SystemBuffer;
PSECURITY_DESCRIPTOR SecurityDescriptor = (PVOID)(Params + 1); PSECURITY_DESCRIPTOR SecurityDescriptor = (PVOID)((PUINT8)Params + FSP_FSCTL_VOLUME_PARAMS_SIZE);
DWORD SecurityDescriptorSize = InputBufferLength - sizeof *Params; DWORD SecurityDescriptorSize = InputBufferLength - sizeof *Params;
if (sizeof *Params >= InputBufferLength || 0 == SystemBuffer || if (sizeof *Params >= InputBufferLength || 0 == SystemBuffer ||
!FspValidRelativeSecurityDescriptor(SecurityDescriptor, SecurityDescriptorSize, !FspValidRelativeSecurityDescriptor(SecurityDescriptor, SecurityDescriptorSize,