diff options
Diffstat (limited to 'usr/src/common/acpica/namespace/nsnames.c')
| -rw-r--r-- | usr/src/common/acpica/namespace/nsnames.c | 380 |
1 files changed, 359 insertions, 21 deletions
diff --git a/usr/src/common/acpica/namespace/nsnames.c b/usr/src/common/acpica/namespace/nsnames.c index 95f8c8db97..097037cbe5 100644 --- a/usr/src/common/acpica/namespace/nsnames.c +++ b/usr/src/common/acpica/namespace/nsnames.c @@ -4,10 +4,118 @@ * ******************************************************************************/ -/* - * Copyright (C) 2000 - 2016, Intel Corp. +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp. * All rights reserved. * + * 2. License + * + * 2.1. This is your license from Intel Corp. under its intellectual property + * rights. You may have additional license terms from the party that provided + * you this software, covering your right to use that party's intellectual + * property rights. + * + * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a + * copy of the source code appearing in this file ("Covered Code") an + * irrevocable, perpetual, worldwide license under Intel's copyrights in the + * base code distributed originally by Intel ("Original Intel Code") to copy, + * make derivatives, distribute, use and display any portion of the Covered + * Code in any form, with the right to sublicense such rights; and + * + * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent + * license (with the right to sublicense), under only those claims of Intel + * patents that are infringed by the Original Intel Code, to make, use, sell, + * offer to sell, and import the Covered Code and derivative works thereof + * solely to the minimum extent necessary to exercise the above copyright + * license, and in no event shall the patent license extend to any additions + * to or modifications of the Original Intel Code. No other license or right + * is granted directly or by implication, estoppel or otherwise; + * + * The above copyright and patent license is granted only if the following + * conditions are met: + * + * 3. Conditions + * + * 3.1. Redistribution of Source with Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification with rights to further distribute source must include + * the above Copyright Notice, the above License, this list of Conditions, + * and the following Disclaimer and Export Compliance provision. In addition, + * Licensee must cause all Covered Code to which Licensee contributes to + * contain a file documenting the changes Licensee made to create that Covered + * Code and the date of any change. Licensee must include in that file the + * documentation of any changes made by any predecessor Licensee. Licensee + * must include a prominent statement that the modification is derived, + * directly or indirectly, from Original Intel Code. + * + * 3.2. Redistribution of Source with no Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification without rights to further distribute source must + * include the following Disclaimer and Export Compliance provision in the + * documentation and/or other materials provided with distribution. In + * addition, Licensee may not authorize further sublicense of source of any + * portion of the Covered Code, and must include terms to the effect that the + * license from Licensee to its licensee is limited to the intellectual + * property embodied in the software Licensee provides to its licensee, and + * not to intellectual property embodied in modifications its licensee may + * make. + * + * 3.3. Redistribution of Executable. Redistribution in executable form of any + * substantial portion of the Covered Code or modification must reproduce the + * above Copyright Notice, and the following Disclaimer and Export Compliance + * provision in the documentation and/or other materials provided with the + * distribution. + * + * 3.4. Intel retains all right, title, and interest in and to the Original + * Intel Code. + * + * 3.5. Neither the name Intel nor any other trademark owned or controlled by + * Intel shall be used in advertising or otherwise to promote the sale, use or + * other dealings in products derived from or relating to the Covered Code + * without prior written authorization from Intel. + * + * 4. Disclaimer and Export Compliance + * + * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED + * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE + * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, + * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY + * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY + * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A + * PARTICULAR PURPOSE. + * + * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES + * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR + * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, + * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY + * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL + * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS + * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY + * LIMITED REMEDY. + * + * 4.3. Licensee shall not export, either directly or indirectly, any of this + * software or system incorporating such software without first obtaining any + * required license or other approval from the U. S. Department of Commerce or + * any other agency or department of the United States Government. In the + * event Licensee exports any such software from the United States or + * re-exports any such software from a foreign destination, Licensee shall + * ensure that the distribution and export/re-export of the software is in + * compliance with all laws, regulations, orders, or other restrictions of the + * U.S. Export Administration Regulations. Licensee agrees that neither it nor + * any of its subsidiaries will export/re-export any technical data, process, + * software, or service, directly or indirectly, to any country for which the + * United States government or any agency thereof requires an export license, + * other governmental approval, or letter of assurance, without first obtaining + * such license, approval or letter. + * + ***************************************************************************** + * + * Alternatively, you may choose to be licensed under the terms of the + * following license: + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -23,23 +131,23 @@ * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Alternatively, you may choose to be licensed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + *****************************************************************************/ #include "acpi.h" #include "accommon.h" @@ -50,6 +158,12 @@ #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME ("nsnames") +/* Local Prototypes */ + +static void +AcpiNsNormalizePathname ( + char *OriginalPath); + /******************************************************************************* * @@ -100,8 +214,15 @@ AcpiNsGetPathnameLength ( ACPI_SIZE Size; - ACPI_FUNCTION_ENTRY (); + /* Validate the Node */ + if (ACPI_GET_DESCRIPTOR_TYPE (Node) != ACPI_DESC_TYPE_NAMED) + { + ACPI_ERROR ((AE_INFO, + "Invalid/cached reference target node: %p, descriptor type %d", + Node, ACPI_GET_DESCRIPTOR_TYPE (Node))); + return (0); + } Size = AcpiNsBuildNormalizedPath (Node, NULL, 0, FALSE); return (Size); @@ -110,6 +231,58 @@ AcpiNsGetPathnameLength ( /******************************************************************************* * + * FUNCTION: AcpiNsHandleToName + * + * PARAMETERS: TargetHandle - Handle of named object whose name is + * to be found + * Buffer - Where the name is returned + * + * RETURN: Status, Buffer is filled with name if status is AE_OK + * + * DESCRIPTION: Build and return a full namespace name + * + ******************************************************************************/ + +ACPI_STATUS +AcpiNsHandleToName ( + ACPI_HANDLE TargetHandle, + ACPI_BUFFER *Buffer) +{ + ACPI_STATUS Status; + ACPI_NAMESPACE_NODE *Node; + const char *NodeName; + + + ACPI_FUNCTION_TRACE_PTR (NsHandleToName, TargetHandle); + + + Node = AcpiNsValidateHandle (TargetHandle); + if (!Node) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Validate/Allocate/Clear caller buffer */ + + Status = AcpiUtInitializeBuffer (Buffer, ACPI_PATH_SEGMENT_LENGTH); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Just copy the ACPI name from the Node and zero terminate it */ + + NodeName = AcpiUtGetNodeName (Node); + ACPI_MOVE_NAME (Buffer->Pointer, NodeName); + ((char *) Buffer->Pointer) [ACPI_NAME_SIZE] = 0; + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%4.4s\n", (char *) Buffer->Pointer)); + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * * FUNCTION: AcpiNsHandleToPathname * * PARAMETERS: TargetHandle - Handle of named object whose name is @@ -164,10 +337,6 @@ AcpiNsHandleToPathname ( (void) AcpiNsBuildNormalizedPath (Node, Buffer->Pointer, RequiredSize, NoTrailing); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%s [%X]\n", (char *) Buffer->Pointer, (UINT32) RequiredSize)); @@ -342,5 +511,174 @@ AcpiNsGetNormalizedPathname ( (void) AcpiNsBuildNormalizedPath (Node, NameBuffer, Size, NoTrailing); + ACPI_DEBUG_PRINT_RAW ((ACPI_DB_NAMES, "%s: Path \"%s\"\n", + ACPI_GET_FUNCTION_NAME, NameBuffer)); + return_PTR (NameBuffer); } + + +/******************************************************************************* + * + * FUNCTION: AcpiNsBuildPrefixedPathname + * + * PARAMETERS: PrefixScope - Scope/Path that prefixes the internal path + * InternalPath - Name or path of the namespace node + * + * RETURN: None + * + * DESCRIPTION: Construct a fully qualified pathname from a concatenation of: + * 1) Path associated with the PrefixScope namespace node + * 2) External path representation of the Internal path + * + ******************************************************************************/ + +char * +AcpiNsBuildPrefixedPathname ( + ACPI_GENERIC_STATE *PrefixScope, + const char *InternalPath) +{ + ACPI_STATUS Status; + char *FullPath = NULL; + char *ExternalPath = NULL; + char *PrefixPath = NULL; + UINT32 PrefixPathLength = 0; + + + /* If there is a prefix, get the pathname to it */ + + if (PrefixScope && PrefixScope->Scope.Node) + { + PrefixPath = AcpiNsGetNormalizedPathname (PrefixScope->Scope.Node, TRUE); + if (PrefixPath) + { + PrefixPathLength = strlen (PrefixPath); + } + } + + Status = AcpiNsExternalizeName (ACPI_UINT32_MAX, InternalPath, + NULL, &ExternalPath); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + /* Merge the prefix path and the path. 2 is for one dot and trailing null */ + + FullPath = ACPI_ALLOCATE_ZEROED ( + PrefixPathLength + strlen (ExternalPath) + 2); + if (!FullPath) + { + goto Cleanup; + } + + /* Don't merge if the External path is already fully qualified */ + + if (PrefixPath && + (*ExternalPath != '\\') && + (*ExternalPath != '^')) + { + strcat (FullPath, PrefixPath); + if (PrefixPath[1]) + { + strcat (FullPath, "."); + } + } + + AcpiNsNormalizePathname (ExternalPath); + strcat (FullPath, ExternalPath); + +Cleanup: + if (PrefixPath) + { + ACPI_FREE (PrefixPath); + } + if (ExternalPath) + { + ACPI_FREE (ExternalPath); + } + + return (FullPath); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiNsNormalizePathname + * + * PARAMETERS: OriginalPath - Path to be normalized, in External format + * + * RETURN: The original path is processed in-place + * + * DESCRIPTION: Remove trailing underscores from each element of a path. + * + * For example: \A___.B___.C___ becomes \A.B.C + * + ******************************************************************************/ + +static void +AcpiNsNormalizePathname ( + char *OriginalPath) +{ + char *InputPath = OriginalPath; + char *NewPathBuffer; + char *NewPath; + UINT32 i; + + + /* Allocate a temp buffer in which to construct the new path */ + + NewPathBuffer = ACPI_ALLOCATE_ZEROED (strlen (InputPath) + 1); + NewPath = NewPathBuffer; + if (!NewPathBuffer) + { + return; + } + + /* Special characters may appear at the beginning of the path */ + + if (*InputPath == '\\') + { + *NewPath = *InputPath; + NewPath++; + InputPath++; + } + + while (*InputPath == '^') + { + *NewPath = *InputPath; + NewPath++; + InputPath++; + } + + /* Remainder of the path */ + + while (*InputPath) + { + /* Do one nameseg at a time */ + + for (i = 0; (i < ACPI_NAME_SIZE) && *InputPath; i++) + { + if ((i == 0) || (*InputPath != '_')) /* First char is allowed to be underscore */ + { + *NewPath = *InputPath; + NewPath++; + } + + InputPath++; + } + + /* Dot means that there are more namesegs to come */ + + if (*InputPath == '.') + { + *NewPath = *InputPath; + NewPath++; + InputPath++; + } + } + + *NewPath = 0; + strcpy (OriginalPath, NewPathBuffer); + ACPI_FREE (NewPathBuffer); +} |