mirror of https://github.com/F-Stack/f-stack.git
430 lines
18 KiB
C
430 lines
18 KiB
C
/******************************************************************************
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*
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* Module Name: nsarguments - Validation of args for ACPI predefined methods
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2020, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************
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*
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* Alternatively, you may choose to be licensed under the terms of the
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* following license:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Alternatively, you may choose to be licensed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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*****************************************************************************/
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/accommon.h>
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#include <contrib/dev/acpica/include/acnamesp.h>
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#include <contrib/dev/acpica/include/acpredef.h>
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#define _COMPONENT ACPI_NAMESPACE
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ACPI_MODULE_NAME ("nsarguments")
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/*******************************************************************************
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*
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* FUNCTION: AcpiNsCheckArgumentTypes
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*
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* PARAMETERS: Info - Method execution information block
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*
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* RETURN: None
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*
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* DESCRIPTION: Check the incoming argument count and all argument types
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* against the argument type list for a predefined name.
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*
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******************************************************************************/
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void
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AcpiNsCheckArgumentTypes (
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ACPI_EVALUATE_INFO *Info)
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{
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UINT16 ArgTypeList;
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UINT8 ArgCount;
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UINT8 ArgType;
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UINT8 UserArgType;
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UINT32 i;
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/*
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* If not a predefined name, cannot typecheck args, because
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* we have no idea what argument types are expected.
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* Also, ignore typecheck if warnings/errors if this method
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* has already been evaluated at least once -- in order
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* to suppress repetitive messages.
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*/
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if (!Info->Predefined || (Info->Node->Flags & ANOBJ_EVALUATED))
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{
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return;
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}
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ArgTypeList = Info->Predefined->Info.ArgumentList;
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ArgCount = METHOD_GET_ARG_COUNT (ArgTypeList);
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/* Typecheck all arguments */
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for (i = 0; ((i < ArgCount) && (i < Info->ParamCount)); i++)
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{
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ArgType = METHOD_GET_NEXT_TYPE (ArgTypeList);
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UserArgType = Info->Parameters[i]->Common.Type;
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/* No typechecking for ACPI_TYPE_ANY */
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if ((UserArgType != ArgType) && (ArgType != ACPI_TYPE_ANY))
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{
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ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, ACPI_WARN_ALWAYS,
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"Argument #%u type mismatch - "
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"Found [%s], ACPI requires [%s]", (i + 1),
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AcpiUtGetTypeName (UserArgType),
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AcpiUtGetTypeName (ArgType)));
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/* Prevent any additional typechecking for this method */
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Info->Node->Flags |= ANOBJ_EVALUATED;
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}
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiNsCheckAcpiCompliance
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*
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* PARAMETERS: Pathname - Full pathname to the node (for error msgs)
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* Node - Namespace node for the method/object
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* Predefined - Pointer to entry in predefined name table
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*
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* RETURN: None
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*
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* DESCRIPTION: Check that the declared parameter count (in ASL/AML) for a
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* predefined name is what is expected (matches what is defined in
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* the ACPI specification for this predefined name.)
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*
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******************************************************************************/
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void
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AcpiNsCheckAcpiCompliance (
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char *Pathname,
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ACPI_NAMESPACE_NODE *Node,
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const ACPI_PREDEFINED_INFO *Predefined)
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{
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UINT32 AmlParamCount;
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UINT32 RequiredParamCount;
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if (!Predefined || (Node->Flags & ANOBJ_EVALUATED))
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{
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return;
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}
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/* Get the ACPI-required arg count from the predefined info table */
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RequiredParamCount =
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METHOD_GET_ARG_COUNT (Predefined->Info.ArgumentList);
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/*
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* If this object is not a control method, we can check if the ACPI
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* spec requires that it be a method.
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*/
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if (Node->Type != ACPI_TYPE_METHOD)
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{
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if (RequiredParamCount > 0)
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{
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/* Object requires args, must be implemented as a method */
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ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
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"Object (%s) must be a control method with %u arguments",
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AcpiUtGetTypeName (Node->Type), RequiredParamCount));
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}
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else if (!RequiredParamCount && !Predefined->Info.ExpectedBtypes)
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{
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/* Object requires no args and no return value, must be a method */
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ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
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"Object (%s) must be a control method "
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"with no arguments and no return value",
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AcpiUtGetTypeName (Node->Type)));
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}
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return;
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}
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/*
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* This is a control method.
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* Check that the ASL/AML-defined parameter count for this method
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* matches the ACPI-required parameter count
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*
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* Some methods are allowed to have a "minimum" number of args (_SCP)
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* because their definition in ACPI has changed over time.
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*
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* Note: These are BIOS errors in the declaration of the object
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*/
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AmlParamCount = Node->Object->Method.ParamCount;
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if (AmlParamCount < RequiredParamCount)
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{
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ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
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"Insufficient arguments - "
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"ASL declared %u, ACPI requires %u",
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AmlParamCount, RequiredParamCount));
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}
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else if ((AmlParamCount > RequiredParamCount) &&
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!(Predefined->Info.ArgumentList & ARG_COUNT_IS_MINIMUM))
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{
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ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
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"Excess arguments - "
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"ASL declared %u, ACPI requires %u",
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AmlParamCount, RequiredParamCount));
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiNsCheckArgumentCount
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*
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* PARAMETERS: Pathname - Full pathname to the node (for error msgs)
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* Node - Namespace node for the method/object
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* UserParamCount - Number of args passed in by the caller
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* Predefined - Pointer to entry in predefined name table
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*
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* RETURN: None
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*
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* DESCRIPTION: Check that incoming argument count matches the declared
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* parameter count (in the ASL/AML) for an object.
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*
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******************************************************************************/
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void
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AcpiNsCheckArgumentCount (
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char *Pathname,
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ACPI_NAMESPACE_NODE *Node,
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UINT32 UserParamCount,
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const ACPI_PREDEFINED_INFO *Predefined)
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{
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UINT32 AmlParamCount;
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UINT32 RequiredParamCount;
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if (Node->Flags & ANOBJ_EVALUATED)
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{
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return;
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}
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if (!Predefined)
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{
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/*
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* Not a predefined name. Check the incoming user argument count
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* against the count that is specified in the method/object.
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*/
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if (Node->Type != ACPI_TYPE_METHOD)
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{
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if (UserParamCount)
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{
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ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
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"%u arguments were passed to a non-method ACPI object (%s)",
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UserParamCount, AcpiUtGetTypeName (Node->Type)));
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}
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return;
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}
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/*
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* This is a control method. Check the parameter count.
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* We can only check the incoming argument count against the
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* argument count declared for the method in the ASL/AML.
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*
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* Emit a message if too few or too many arguments have been passed
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* by the caller.
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*
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* Note: Too many arguments will not cause the method to
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* fail. However, the method will fail if there are too few
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* arguments and the method attempts to use one of the missing ones.
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*/
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AmlParamCount = Node->Object->Method.ParamCount;
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if (UserParamCount < AmlParamCount)
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{
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ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
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"Insufficient arguments - "
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"Caller passed %u, method requires %u",
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UserParamCount, AmlParamCount));
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}
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else if (UserParamCount > AmlParamCount)
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{
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ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
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"Excess arguments - "
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"Caller passed %u, method requires %u",
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UserParamCount, AmlParamCount));
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}
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return;
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}
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/*
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* This is a predefined name. Validate the user-supplied parameter
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* count against the ACPI specification. We don't validate against
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* the method itself because what is important here is that the
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* caller is in conformance with the spec. (The arg count for the
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* method was checked against the ACPI spec earlier.)
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*
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* Some methods are allowed to have a "minimum" number of args (_SCP)
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* because their definition in ACPI has changed over time.
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*/
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RequiredParamCount =
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METHOD_GET_ARG_COUNT (Predefined->Info.ArgumentList);
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if (UserParamCount < RequiredParamCount)
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{
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ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
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"Insufficient arguments - "
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"Caller passed %u, ACPI requires %u",
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UserParamCount, RequiredParamCount));
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}
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else if ((UserParamCount > RequiredParamCount) &&
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!(Predefined->Info.ArgumentList & ARG_COUNT_IS_MINIMUM))
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{
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ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
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"Excess arguments - "
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"Caller passed %u, ACPI requires %u",
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UserParamCount, RequiredParamCount));
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}
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}
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