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sys: fsctl: WIP

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Bill Zissimopoulos 2015-11-26 13:06:32 -08:00
parent 91ace92aaf
commit d710e7a437
2 changed files with 7 additions and 1 deletions
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4
inc/winfsp/fsctl.h
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@ -30,7 +30,9 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0x800 + 'T', METHOD_BUFFERED, FILE_ANY_ACCESS) CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0x800 + 'T', METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSP_FSCTL_CREATE_BUFFER_SIZE 128 #define FSP_FSCTL_CREATE_BUFFER_SIZE 128
#define FSP_FSCTL_TRANSACT_BUFFER_SIZE 4096 #define FSP_FSCTL_TRANSACT_BUFFER_SIZE (16 * 1024)
#define FSP_FSCTL_TRANSACT_REQ_SIZEMAX (sizeof(FSP_TRANSACT_REQ) + 1024 * sizeof(WCHAR))
#define FSP_FSCTL_TRANSACT_RSP_SIZEMAX (sizeof(FSP_TRANSACT_RSP) + 1024 * sizeof(WCHAR))
/* marshalling */ /* marshalling */
#pragma warning(push) #pragma warning(push)

4
src/sys/fsctl.c
View File

@ -186,6 +186,10 @@ static NTSTATUS FspFsvrtTransact(
return STATUS_CANCELLED; return STATUS_CANCELLED;
} }
/* check that we have enough space before pulling the next pending IRP off the queue */
if ((PUINT8)Request + FSP_FSCTL_TRANSACT_REQ_SIZEMAX > SystemBufferEnd)
break;
PendingIrp = FspIoqNextPendingIrp(&FsvrtDeviceExtension->Ioq, 0); PendingIrp = FspIoqNextPendingIrp(&FsvrtDeviceExtension->Ioq, 0);
if (0 == PendingIrp) if (0 == PendingIrp)
break; break;