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[NTOS:EX] Implement SystemFirmwareTableInformation class

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Stanislav Motylkov 2018-08-05 16:39:51 +03:00 committed by Mark Jansen
parent 844483504b
commit d033fe9bbf
1 changed files with 187 additions and 0 deletions
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187
ntoskrnl/ex/sysinfo.c
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@ -11,12 +11,18 @@
/* INCLUDES *****************************************************************/
#include <ntoskrnl.h>
#include <wmidata.h>
#include <wmistr.h>
#define NDEBUG
#include <debug.h>
/* The maximum size of an environment value (in bytes) */
#define MAX_ENVVAL_SIZE 1024
#define SIG_ACPI 0x41435049
#define SIG_FIRM 0x4649524D
#define SIG_RSMB 0x52534D42
extern LIST_ENTRY HandleTableListHead;
extern EX_PUSH_LOCK HandleTableListLock;
@ -239,6 +245,75 @@ ExLockUserBuffer(
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
ExpGetRawSMBiosTable(
_Out_opt_ PVOID Buffer,
_Out_ ULONG * OutSize,
_In_ ULONG BufferSize)
{
NTSTATUS Status;
PVOID DataBlockObject;
PWNODE_ALL_DATA AllData;
ULONG WMIBufSize;
ASSERT(OutSize != NULL);
*OutSize = 0;
/* Open the data block object for the SMBIOS table */
Status = IoWMIOpenBlock(&MSSmBios_RawSMBiosTables_GUID,
WMIGUID_QUERY,
&DataBlockObject);
if (!NT_SUCCESS(Status))
{
DPRINT1("IoWMIOpenBlock failed: 0x%08lx\n", Status);
return Status;
}
/* Query the required buffer size */
WMIBufSize = 0;
Status = IoWMIQueryAllData(DataBlockObject, &WMIBufSize, NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("IoWMIOpenBlock failed: 0x%08lx\n", Status);
return Status;
}
AllData = ExAllocatePoolWithTag(PagedPool, WMIBufSize, 'itfS');
if (AllData == NULL)
{
DPRINT1("Failed to allocate %lu bytes for SMBIOS tables\n", WMIBufSize);
return STATUS_INSUFFICIENT_RESOURCES;
}
/* Query the buffer data */
Status = IoWMIQueryAllData(DataBlockObject, &WMIBufSize, AllData);
if (!NT_SUCCESS(Status))
{
DPRINT1("IoWMIOpenBlock failed: 0x%08lx\n", Status);
ExFreePoolWithTag(AllData, 'itfS');
return Status;
}
Status = STATUS_SUCCESS;
*OutSize = AllData->FixedInstanceSize;
if (Buffer != NULL)
{
if (BufferSize >= *OutSize)
{
RtlMoveMemory(Buffer, AllData + 1, *OutSize);
}
else
{
Status = STATUS_BUFFER_TOO_SMALL;
}
}
/* Free the buffer */
ExFreePoolWithTag(AllData, 'itfS');
return Status;
}
/* FUNCTIONS *****************************************************************/
/*
@ -2503,6 +2578,106 @@ QSI_DEF(SystemExtendedHandleInformation)
return Status;
}
/* Class 76 - System firmware table information */
QSI_DEF(SystemFirmwareTableInformation)
{
PSYSTEM_FIRMWARE_TABLE_INFORMATION SysFirmwareInfo = (PSYSTEM_FIRMWARE_TABLE_INFORMATION)Buffer;
NTSTATUS Status = STATUS_SUCCESS;
ULONG InputBufSize;
ULONG DataSize = 0;
ULONG TableCount = 0;
DPRINT("NtQuerySystemInformation - SystemFirmwareTableInformation\n");
/* Set initial required buffer size */
*ReqSize = FIELD_OFFSET(SYSTEM_FIRMWARE_TABLE_INFORMATION, TableBuffer);
/* Check user's buffer size */
if (Size < *ReqSize)
{
return STATUS_INFO_LENGTH_MISMATCH;
}
InputBufSize = SysFirmwareInfo->TableBufferLength;
switch (SysFirmwareInfo->ProviderSignature)
{
/*
* ExpFirmwareTableResource and ExpFirmwareTableProviderListHead
* variables should be used there somehow...
*/
case SIG_ACPI:
{
/* FIXME: Not implemented yet */
DPRINT1("ACPI provider not implemented\n");
Status = STATUS_NOT_IMPLEMENTED;
break;
}
case SIG_FIRM:
{
/* FIXME: Not implemented yet */
DPRINT1("FIRM provider not implemented\n");
Status = STATUS_NOT_IMPLEMENTED;
break;
}
case SIG_RSMB:
{
Status = ExpGetRawSMBiosTable(NULL, &DataSize, 0);
if (DataSize > 0)
{
TableCount = 1;
if (SysFirmwareInfo->Action == SystemFirmwareTable_Enumerate)
{
DataSize = TableCount * sizeof(ULONG);
if (DataSize <= InputBufSize)
{
*(ULONG *)SysFirmwareInfo->TableBuffer = 0;
}
}
else if (SysFirmwareInfo->Action == SystemFirmwareTable_Get
&& DataSize <= InputBufSize)
{
Status = ExpGetRawSMBiosTable(SysFirmwareInfo->TableBuffer, &DataSize, InputBufSize);
}
SysFirmwareInfo->TableBufferLength = DataSize;
}
break;
}
default:
{
DPRINT1("SystemFirmwareTableInformation: Unsupported provider (0x%x)\n",
SysFirmwareInfo->ProviderSignature);
Status = STATUS_ILLEGAL_FUNCTION;
}
}
if (NT_SUCCESS(Status))
{
switch (SysFirmwareInfo->Action)
{
case SystemFirmwareTable_Enumerate:
case SystemFirmwareTable_Get:
{
if (SysFirmwareInfo->TableBufferLength > InputBufSize)
{
Status = STATUS_BUFFER_TOO_SMALL;
}
break;
}
default:
{
DPRINT1("SystemFirmwareTableInformation: Unsupported action (0x%x)\n",
SysFirmwareInfo->Action);
Status = STATUS_ILLEGAL_FUNCTION;
}
}
}
else
{
SysFirmwareInfo->TableBufferLength = 0;
}
return Status;
}
/* Query/Set Calls Table */
typedef
struct _QSSI_CALLS
@ -2590,6 +2765,18 @@ CallQS [] =
SI_XX(SystemEmulationBasicInformation), /* FIXME: not implemented */
SI_XX(SystemEmulationProcessorInformation), /* FIXME: not implemented */
SI_QX(SystemExtendedHandleInformation),
SI_XX(SystemLostDelayedWriteInformation), /* FIXME: not implemented */
SI_XX(SystemBigPoolInformation), /* FIXME: not implemented */
SI_XX(SystemSessionPoolTagInformation), /* FIXME: not implemented */
SI_XX(SystemSessionMappedViewInformation), /* FIXME: not implemented */
SI_XX(SystemHotpatchInformation), /* FIXME: not implemented */
SI_XX(SystemObjectSecurityMode), /* FIXME: not implemented */
SI_XX(SystemWatchdogTimerHandler), /* FIXME: not implemented */
SI_XX(SystemWatchdogTimerInformation), /* FIXME: not implemented */
SI_XX(SystemLogicalProcessorInformation), /* FIXME: not implemented */
SI_XX(SystemWow64SharedInformation), /* FIXME: not implemented */
SI_XX(SystemRegisterFirmwareTableInformationHandler), /* FIXME: not implemented */
SI_QX(SystemFirmwareTableInformation),
};
C_ASSERT(SystemBasicInformation == 0);