static ACPI_STATUS
AcpiNsCheckPackageList (
ACPI_PREDEFINED_DATA *Data,
const ACPI_PREDEFINED_INFO *Package,
ACPI_OPERAND_OBJECT **Elements,
UINT32 Count)
{
ACPI_OPERAND_OBJECT *SubPackage;
ACPI_OPERAND_OBJECT **SubElements;
ACPI_STATUS Status;
UINT32 ExpectedCount;
UINT32 i;
UINT32 j;
/*
* Validate each sub-Package in the parent Package
*
* NOTE: assumes list of sub-packages contains no NULL elements.
* Any NULL elements should have been removed by earlier call
* to AcpiNsRemoveNullElements.
*/
for (i = 0; i < Count; i++)
{
SubPackage = *Elements;
SubElements = SubPackage->Package.Elements;
Data->ParentPackage = SubPackage;
/* Each sub-object must be of type Package */
Status = AcpiNsCheckObjectType (Data, &SubPackage,
ACPI_RTYPE_PACKAGE, i);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/* Examine the different types of expected sub-packages */
Data->ParentPackage = SubPackage;
switch (Package->RetInfo.Type)
{
case ACPI_PTYPE2:
case ACPI_PTYPE2_PKG_COUNT:
case ACPI_PTYPE2_REV_FIXED:
/* Each subpackage has a fixed number of elements */
ExpectedCount = Package->RetInfo.Count1 + Package->RetInfo.Count2;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
Status = AcpiNsCheckPackageElements (Data, SubElements,
Package->RetInfo.ObjectType1,
Package->RetInfo.Count1,
Package->RetInfo.ObjectType2,
Package->RetInfo.Count2, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
case ACPI_PTYPE2_FIX_VAR:
/*
* Each subpackage has a fixed number of elements and an
* optional element
*/
ExpectedCount = Package->RetInfo.Count1 + Package->RetInfo.Count2;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
Status = AcpiNsCheckPackageElements (Data, SubElements,
Package->RetInfo.ObjectType1,
Package->RetInfo.Count1,
Package->RetInfo.ObjectType2,
SubPackage->Package.Count - Package->RetInfo.Count1, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
case ACPI_PTYPE2_FIXED:
/* Each sub-package has a fixed length */
ExpectedCount = Package->RetInfo2.Count;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
/* Check the type of each sub-package element */
for (j = 0; j < ExpectedCount; j++)
{
Status = AcpiNsCheckObjectType (Data, &SubElements[j],
Package->RetInfo2.ObjectType[j], j);
if (ACPI_FAILURE (Status))
{
return (Status);
}
}
break;
case ACPI_PTYPE2_MIN:
/* Each sub-package has a variable but minimum length */
ExpectedCount = Package->RetInfo.Count1;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
/* Check the type of each sub-package element */
Status = AcpiNsCheckPackageElements (Data, SubElements,
Package->RetInfo.ObjectType1,
SubPackage->Package.Count, 0, 0, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
case ACPI_PTYPE2_COUNT:
/*
* First element is the (Integer) count of elements, including
* the count field (the ACPI name is NumElements)
*/
Status = AcpiNsCheckObjectType (Data, SubElements,
ACPI_RTYPE_INTEGER, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/*
* Make sure package is large enough for the Count and is
* is as large as the minimum size
*/
ExpectedCount = (UINT32) (*SubElements)->Integer.Value;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
if (SubPackage->Package.Count < Package->RetInfo.Count1)
{
ExpectedCount = Package->RetInfo.Count1;
goto PackageTooSmall;
}
if (ExpectedCount == 0)
{
/*
* Either the NumEntries element was originally zero or it was
* a NULL element and repaired to an Integer of value zero.
* In either case, repair it by setting NumEntries to be the
* actual size of the subpackage.
*/
ExpectedCount = SubPackage->Package.Count;
(*SubElements)->Integer.Value = ExpectedCount;
}
/* Check the type of each sub-package element */
Status = AcpiNsCheckPackageElements (Data, (SubElements + 1),
Package->RetInfo.ObjectType1,
(ExpectedCount - 1), 0, 0, 1);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
default: /* Should not get here, type was validated by caller */
return (AE_AML_INTERNAL);
}
Elements++;
}
return (AE_OK);
PackageTooSmall:
/* The sub-package count was smaller than required */
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Return Sub-Package[%u] is too small - found %u elements, expected %u",
i, SubPackage->Package.Count, ExpectedCount));
return (AE_AML_OPERAND_VALUE);
}
static ACPI_STATUS
AcpiNsCheckPackage (
ACPI_PREDEFINED_DATA *Data,
ACPI_OPERAND_OBJECT **ReturnObjectPtr)
{
ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr;
const ACPI_PREDEFINED_INFO *Package;
ACPI_OPERAND_OBJECT **Elements;
ACPI_STATUS Status = AE_OK;
UINT32 ExpectedCount;
UINT32 Count;
UINT32 i;
ACPI_FUNCTION_NAME (NsCheckPackage);
/* The package info for this name is in the next table entry */
Package = Data->Predefined + 1;
ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
"%s Validating return Package of Type %X, Count %X\n",
Data->Pathname, Package->RetInfo.Type, ReturnObject->Package.Count));
/*
* For variable-length Packages, we can safely remove all embedded
* and trailing NULL package elements
*/
AcpiNsRemoveNullElements (Data, Package->RetInfo.Type, ReturnObject);
/* Extract package count and elements array */
Elements = ReturnObject->Package.Elements;
Count = ReturnObject->Package.Count;
/* The package must have at least one element, else invalid */
if (!Count)
{
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Return Package has no elements (empty)"));
return (AE_AML_OPERAND_VALUE);
}
/*
* Decode the type of the expected package contents
*
* PTYPE1 packages contain no subpackages
* PTYPE2 packages contain sub-packages
*/
switch (Package->RetInfo.Type)
{
case ACPI_PTYPE1_FIXED:
/*
* The package count is fixed and there are no sub-packages
*
* If package is too small, exit.
* If package is larger than expected, issue warning but continue
*/
ExpectedCount = Package->RetInfo.Count1 + Package->RetInfo.Count2;
if (Count < ExpectedCount)
{
goto PackageTooSmall;
}
else if (Count > ExpectedCount)
{
ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR,
"%s: Return Package is larger than needed - "
"found %u, expected %u\n",
Data->Pathname, Count, ExpectedCount));
}
/* Validate all elements of the returned package */
Status = AcpiNsCheckPackageElements (Data, Elements,
Package->RetInfo.ObjectType1, Package->RetInfo.Count1,
Package->RetInfo.ObjectType2, Package->RetInfo.Count2, 0);
break;
case ACPI_PTYPE1_VAR:
/*
* The package count is variable, there are no sub-packages, and all
* elements must be of the same type
*/
for (i = 0; i < Count; i++)
{
Status = AcpiNsCheckObjectType (Data, Elements,
Package->RetInfo.ObjectType1, i);
if (ACPI_FAILURE (Status))
{
return (Status);
}
Elements++;
}
break;
case ACPI_PTYPE1_OPTION:
/*
* The package count is variable, there are no sub-packages. There are
* a fixed number of required elements, and a variable number of
* optional elements.
*
* Check if package is at least as large as the minimum required
*/
ExpectedCount = Package->RetInfo3.Count;
if (Count < ExpectedCount)
{
goto PackageTooSmall;
}
/* Variable number of sub-objects */
for (i = 0; i < Count; i++)
{
if (i < Package->RetInfo3.Count)
{
/* These are the required package elements (0, 1, or 2) */
Status = AcpiNsCheckObjectType (Data, Elements,
Package->RetInfo3.ObjectType[i], i);
if (ACPI_FAILURE (Status))
{
return (Status);
}
}
else
{
/* These are the optional package elements */
Status = AcpiNsCheckObjectType (Data, Elements,
Package->RetInfo3.TailObjectType, i);
if (ACPI_FAILURE (Status))
{
return (Status);
}
}
Elements++;
}
break;
case ACPI_PTYPE2_REV_FIXED:
/* First element is the (Integer) revision */
Status = AcpiNsCheckObjectType (Data, Elements,
ACPI_RTYPE_INTEGER, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
Elements++;
Count--;
/* Examine the sub-packages */
Status = AcpiNsCheckPackageList (Data, Package, Elements, Count);
break;
case ACPI_PTYPE2_PKG_COUNT:
/* First element is the (Integer) count of sub-packages to follow */
Status = AcpiNsCheckObjectType (Data, Elements,
ACPI_RTYPE_INTEGER, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/*
* Count cannot be larger than the parent package length, but allow it
* to be smaller. The >= accounts for the Integer above.
*/
ExpectedCount = (UINT32) (*Elements)->Integer.Value;
if (ExpectedCount >= Count)
{
goto PackageTooSmall;
}
Count = ExpectedCount;
Elements++;
/* Examine the sub-packages */
Status = AcpiNsCheckPackageList (Data, Package, Elements, Count);
break;
case ACPI_PTYPE2:
case ACPI_PTYPE2_FIXED:
case ACPI_PTYPE2_MIN:
case ACPI_PTYPE2_COUNT:
case ACPI_PTYPE2_FIX_VAR:
/*
* These types all return a single Package that consists of a
* variable number of sub-Packages.
*
* First, ensure that the first element is a sub-Package. If not,
* the BIOS may have incorrectly returned the object as a single
* package instead of a Package of Packages (a common error if
* there is only one entry). We may be able to repair this by
* wrapping the returned Package with a new outer Package.
*/
if (*Elements && ((*Elements)->Common.Type != ACPI_TYPE_PACKAGE))
{
/* Create the new outer package and populate it */
Status = AcpiNsRepairPackageList (Data, ReturnObjectPtr);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/* Update locals to point to the new package (of 1 element) */
ReturnObject = *ReturnObjectPtr;
Elements = ReturnObject->Package.Elements;
Count = 1;
}
/* Examine the sub-packages */
Status = AcpiNsCheckPackageList (Data, Package, Elements, Count);
break;
default:
/* Should not get here if predefined info table is correct */
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Invalid internal return type in table entry: %X",
Package->RetInfo.Type));
return (AE_AML_INTERNAL);
}
return (Status);
PackageTooSmall:
/* Error exit for the case with an incorrect package count */
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Return Package is too small - found %u elements, expected %u",
Count, ExpectedCount));
return (AE_AML_OPERAND_VALUE);
}
static ACPI_STATUS
AcpiNsCustomPackage (
ACPI_EVALUATE_INFO *Info,
ACPI_OPERAND_OBJECT **Elements,
UINT32 Count)
{
UINT32 ExpectedCount;
UINT32 Version;
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_NAME (NsCustomPackage);
/* Get version number, must be Integer */
if ((*Elements)->Common.Type != ACPI_TYPE_INTEGER)
{
ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, Info->NodeFlags,
"Return Package has invalid object type for version number"));
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
}
Version = (UINT32) (*Elements)->Integer.Value;
ExpectedCount = 21; /* Version 1 */
if (Version == 0)
{
ExpectedCount = 20; /* Version 0 */
}
if (Count < ExpectedCount)
{
ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, Info->NodeFlags,
"Return Package is too small - found %u elements, expected %u",
Count, ExpectedCount));
return_ACPI_STATUS (AE_AML_OPERAND_VALUE);
}
else if (Count > ExpectedCount)
{
ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR,
"%s: Return Package is larger than needed - "
"found %u, expected %u\n",
Info->FullPathname, Count, ExpectedCount));
}
/* Validate all elements of the returned package */
Status = AcpiNsCheckPackageElements (Info, Elements,
ACPI_RTYPE_INTEGER, 16,
ACPI_RTYPE_STRING, 4, 0);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Version 1 has a single trailing integer */
if (Version > 0)
{
Status = AcpiNsCheckPackageElements (Info, Elements + 20,
ACPI_RTYPE_INTEGER, 1, 0, 0, 20);
}
return_ACPI_STATUS (Status);
}
static ACPI_STATUS
AcpiNsCheckPackageList (
ACPI_PREDEFINED_DATA *Data,
const ACPI_PREDEFINED_INFO *Package,
ACPI_OPERAND_OBJECT **Elements,
UINT32 Count)
{
ACPI_OPERAND_OBJECT *SubPackage;
ACPI_OPERAND_OBJECT **SubElements;
ACPI_STATUS Status;
UINT32 ExpectedCount;
UINT32 i;
UINT32 j;
/* Validate each sub-Package in the parent Package */
for (i = 0; i < Count; i++)
{
SubPackage = *Elements;
SubElements = SubPackage->Package.Elements;
/* Each sub-object must be of type Package */
Status = AcpiNsCheckObjectType (Data, &SubPackage,
ACPI_RTYPE_PACKAGE, i);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/* Examine the different types of expected sub-packages */
switch (Package->RetInfo.Type)
{
case ACPI_PTYPE2:
case ACPI_PTYPE2_PKG_COUNT:
case ACPI_PTYPE2_REV_FIXED:
/* Each subpackage has a fixed number of elements */
ExpectedCount = Package->RetInfo.Count1 + Package->RetInfo.Count2;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
Status = AcpiNsCheckPackageElements (Data, SubElements,
Package->RetInfo.ObjectType1,
Package->RetInfo.Count1,
Package->RetInfo.ObjectType2,
Package->RetInfo.Count2, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
case ACPI_PTYPE2_FIXED:
/* Each sub-package has a fixed length */
ExpectedCount = Package->RetInfo2.Count;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
/* Check the type of each sub-package element */
for (j = 0; j < ExpectedCount; j++)
{
Status = AcpiNsCheckObjectType (Data, &SubElements[j],
Package->RetInfo2.ObjectType[j], j);
if (ACPI_FAILURE (Status))
{
return (Status);
}
}
break;
case ACPI_PTYPE2_MIN:
/* Each sub-package has a variable but minimum length */
ExpectedCount = Package->RetInfo.Count1;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
/* Check the type of each sub-package element */
Status = AcpiNsCheckPackageElements (Data, SubElements,
Package->RetInfo.ObjectType1,
SubPackage->Package.Count, 0, 0, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
case ACPI_PTYPE2_COUNT:
/*
* First element is the (Integer) count of elements, including
* the count field.
*/
Status = AcpiNsCheckObjectType (Data, SubElements,
ACPI_RTYPE_INTEGER, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/*
* Make sure package is large enough for the Count and is
* is as large as the minimum size
*/
ExpectedCount = (UINT32) (*SubElements)->Integer.Value;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
if (SubPackage->Package.Count < Package->RetInfo.Count1)
{
ExpectedCount = Package->RetInfo.Count1;
goto PackageTooSmall;
}
/* Check the type of each sub-package element */
Status = AcpiNsCheckPackageElements (Data, (SubElements + 1),
Package->RetInfo.ObjectType1,
(ExpectedCount - 1), 0, 0, 1);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
default: /* Should not get here, type was validated by caller */
return (AE_AML_INTERNAL);
}
Elements++;
}
return (AE_OK);
PackageTooSmall:
/* The sub-package count was smaller than required */
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Return Sub-Package[%u] is too small - found %u elements, expected %u",
i, SubPackage->Package.Count, ExpectedCount));
return (AE_AML_OPERAND_VALUE);
}
static ACPI_STATUS
AcpiNsCheckPackageList (
ACPI_PREDEFINED_DATA *Data,
const ACPI_PREDEFINED_INFO *Package,
ACPI_OPERAND_OBJECT **Elements,
UINT32 Count)
{
ACPI_OPERAND_OBJECT *SubPackage;
ACPI_OPERAND_OBJECT **SubElements;
ACPI_STATUS Status;
BOOLEAN NonTrailingNull = FALSE;
UINT32 ExpectedCount;
UINT32 i;
UINT32 j;
/* Validate each sub-Package in the parent Package */
for (i = 0; i < Count; i++)
{
/*
* Handling for NULL package elements. For now, we will simply allow
* a parent package with trailing NULL elements. This can happen if
* the package was defined to be longer than the initializer list.
* This is legal as per the ACPI specification. It is often used
* to allow for dynamic initialization of a Package.
*
* A future enhancement may be to simply truncate the package to
* remove the trailing NULL elements.
*/
if (!(*Elements))
{
if (!NonTrailingNull)
{
/* Ensure the remaining elements are all NULL */
for (j = 1; j < (Count - i + 1); j++)
{
if (Elements[j])
{
NonTrailingNull = TRUE;
}
}
if (!NonTrailingNull)
{
/* Ignore the trailing NULL elements */
return (AE_OK);
}
}
/* There are trailing non-null elements, issue warning */
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Found NULL element at package index %u", i));
Elements++;
continue;
}
SubPackage = *Elements;
SubElements = SubPackage->Package.Elements;
/* Each sub-object must be of type Package */
Status = AcpiNsCheckObjectType (Data, &SubPackage,
ACPI_RTYPE_PACKAGE, i);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/* Examine the different types of expected sub-packages */
switch (Package->RetInfo.Type)
{
case ACPI_PTYPE2:
case ACPI_PTYPE2_PKG_COUNT:
case ACPI_PTYPE2_REV_FIXED:
/* Each subpackage has a fixed number of elements */
ExpectedCount = Package->RetInfo.Count1 + Package->RetInfo.Count2;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
Status = AcpiNsCheckPackageElements (Data, SubElements,
Package->RetInfo.ObjectType1,
Package->RetInfo.Count1,
Package->RetInfo.ObjectType2,
Package->RetInfo.Count2, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
case ACPI_PTYPE2_FIXED:
/* Each sub-package has a fixed length */
ExpectedCount = Package->RetInfo2.Count;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
/* Check the type of each sub-package element */
for (j = 0; j < ExpectedCount; j++)
{
Status = AcpiNsCheckObjectType (Data, &SubElements[j],
Package->RetInfo2.ObjectType[j], j);
if (ACPI_FAILURE (Status))
{
return (Status);
}
}
break;
case ACPI_PTYPE2_MIN:
/* Each sub-package has a variable but minimum length */
ExpectedCount = Package->RetInfo.Count1;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
/* Check the type of each sub-package element */
Status = AcpiNsCheckPackageElements (Data, SubElements,
Package->RetInfo.ObjectType1,
SubPackage->Package.Count, 0, 0, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
case ACPI_PTYPE2_COUNT:
/*
* First element is the (Integer) count of elements, including
* the count field.
*/
Status = AcpiNsCheckObjectType (Data, SubElements,
ACPI_RTYPE_INTEGER, 0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/*
* Make sure package is large enough for the Count and is
* is as large as the minimum size
*/
ExpectedCount = (UINT32) (*SubElements)->Integer.Value;
if (SubPackage->Package.Count < ExpectedCount)
{
goto PackageTooSmall;
}
if (SubPackage->Package.Count < Package->RetInfo.Count1)
{
ExpectedCount = Package->RetInfo.Count1;
goto PackageTooSmall;
}
/* Check the type of each sub-package element */
Status = AcpiNsCheckPackageElements (Data, (SubElements + 1),
Package->RetInfo.ObjectType1,
(ExpectedCount - 1), 0, 0, 1);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
default: /* Should not get here, type was validated by caller */
return (AE_AML_INTERNAL);
}
Elements++;
}
return (AE_OK);
PackageTooSmall:
/* The sub-package count was smaller than required */
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Return Sub-Package[%u] is too small - found %u elements, expected %u",
i, SubPackage->Package.Count, ExpectedCount));
return (AE_AML_OPERAND_VALUE);
}
