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9a0a359725
The loop terminates on a NULL resource pointer, which can never happen since the loop simply increments a valid resource pointer. This fix changes the loop to terminate on an end-of-buffer condition. Problem can be seen by callers to AcpiSetCurrentResources with an invalid or corrupted resource descriptor; or a resource descriptor without an END_TAG descriptor. (refined by Bob Moore) Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
382 lines
12 KiB
C
382 lines
12 KiB
C
/******************************************************************************
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*
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* Name: acresrc.h - Resource Manager function prototypes
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2013, Intel Corp.
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* All rights reserved.
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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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* Alternatively, this software may be distributed 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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* NO WARRANTY
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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 MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#ifndef __ACRESRC_H__
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#define __ACRESRC_H__
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/* Need the AML resource descriptor structs */
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#include "amlresrc.h"
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/*
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* If possible, pack the following structures to byte alignment, since we
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* don't care about performance for debug output. Two cases where we cannot
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* pack the structures:
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*
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* 1) Hardware does not support misaligned memory transfers
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* 2) Compiler does not support pointers within packed structures
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*/
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#if (!defined(ACPI_MISALIGNMENT_NOT_SUPPORTED) && !defined(ACPI_PACKED_POINTERS_NOT_SUPPORTED))
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#pragma pack(1)
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#endif
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/*
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* Individual entry for the resource conversion tables
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*/
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typedef const struct acpi_rsconvert_info {
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u8 opcode;
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u8 resource_offset;
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u8 aml_offset;
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u8 value;
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} acpi_rsconvert_info;
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/* Resource conversion opcodes */
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typedef enum {
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ACPI_RSC_INITGET = 0,
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ACPI_RSC_INITSET,
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ACPI_RSC_FLAGINIT,
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ACPI_RSC_1BITFLAG,
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ACPI_RSC_2BITFLAG,
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ACPI_RSC_3BITFLAG,
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ACPI_RSC_ADDRESS,
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ACPI_RSC_BITMASK,
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ACPI_RSC_BITMASK16,
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ACPI_RSC_COUNT,
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ACPI_RSC_COUNT16,
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ACPI_RSC_COUNT_GPIO_PIN,
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ACPI_RSC_COUNT_GPIO_RES,
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ACPI_RSC_COUNT_GPIO_VEN,
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ACPI_RSC_COUNT_SERIAL_RES,
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ACPI_RSC_COUNT_SERIAL_VEN,
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ACPI_RSC_DATA8,
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ACPI_RSC_EXIT_EQ,
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ACPI_RSC_EXIT_LE,
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ACPI_RSC_EXIT_NE,
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ACPI_RSC_LENGTH,
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ACPI_RSC_MOVE_GPIO_PIN,
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ACPI_RSC_MOVE_GPIO_RES,
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ACPI_RSC_MOVE_SERIAL_RES,
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ACPI_RSC_MOVE_SERIAL_VEN,
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ACPI_RSC_MOVE8,
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ACPI_RSC_MOVE16,
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ACPI_RSC_MOVE32,
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ACPI_RSC_MOVE64,
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ACPI_RSC_SET8,
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ACPI_RSC_SOURCE,
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ACPI_RSC_SOURCEX
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} ACPI_RSCONVERT_OPCODES;
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/* Resource Conversion sub-opcodes */
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#define ACPI_RSC_COMPARE_AML_LENGTH 0
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#define ACPI_RSC_COMPARE_VALUE 1
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#define ACPI_RSC_TABLE_SIZE(d) (sizeof (d) / sizeof (struct acpi_rsconvert_info))
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#define ACPI_RS_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_resource,f)
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#define AML_OFFSET(f) (u8) ACPI_OFFSET (union aml_resource,f)
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/*
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* Individual entry for the resource dump tables
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*/
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typedef const struct acpi_rsdump_info {
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u8 opcode;
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u8 offset;
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char *name;
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const char **pointer;
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} acpi_rsdump_info;
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/* Values for the Opcode field above */
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typedef enum {
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ACPI_RSD_TITLE = 0,
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ACPI_RSD_1BITFLAG,
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ACPI_RSD_2BITFLAG,
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ACPI_RSD_3BITFLAG,
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ACPI_RSD_ADDRESS,
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ACPI_RSD_DWORDLIST,
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ACPI_RSD_LITERAL,
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ACPI_RSD_LONGLIST,
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ACPI_RSD_SHORTLIST,
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ACPI_RSD_SHORTLISTX,
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ACPI_RSD_SOURCE,
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ACPI_RSD_STRING,
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ACPI_RSD_UINT8,
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ACPI_RSD_UINT16,
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ACPI_RSD_UINT32,
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ACPI_RSD_UINT64,
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ACPI_RSD_WORDLIST
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} ACPI_RSDUMP_OPCODES;
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/* restore default alignment */
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#pragma pack()
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/* Resource tables indexed by internal resource type */
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extern const u8 acpi_gbl_aml_resource_sizes[];
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extern const u8 acpi_gbl_aml_resource_serial_bus_sizes[];
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extern struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[];
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/* Resource tables indexed by raw AML resource descriptor type */
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extern const u8 acpi_gbl_resource_struct_sizes[];
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extern const u8 acpi_gbl_resource_struct_serial_bus_sizes[];
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extern struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[];
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extern struct acpi_rsconvert_info
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*acpi_gbl_convert_resource_serial_bus_dispatch[];
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struct acpi_vendor_walk_info {
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struct acpi_vendor_uuid *uuid;
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struct acpi_buffer *buffer;
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acpi_status status;
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};
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/*
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* rscreate
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*/
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acpi_status
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acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
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struct acpi_buffer *output_buffer);
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acpi_status
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acpi_rs_create_aml_resources(struct acpi_buffer *resource_list,
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struct acpi_buffer *output_buffer);
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acpi_status
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acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
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struct acpi_buffer *output_buffer);
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/*
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* rsutils
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*/
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acpi_status
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acpi_rs_get_prt_method_data(struct acpi_namespace_node *node,
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struct acpi_buffer *ret_buffer);
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acpi_status
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acpi_rs_get_crs_method_data(struct acpi_namespace_node *node,
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struct acpi_buffer *ret_buffer);
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acpi_status
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acpi_rs_get_prs_method_data(struct acpi_namespace_node *node,
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struct acpi_buffer *ret_buffer);
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acpi_status
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acpi_rs_get_method_data(acpi_handle handle,
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char *path, struct acpi_buffer *ret_buffer);
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acpi_status
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acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
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struct acpi_buffer *ret_buffer);
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acpi_status
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acpi_rs_get_aei_method_data(struct acpi_namespace_node *node,
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struct acpi_buffer *ret_buffer);
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/*
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* rscalc
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*/
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acpi_status
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acpi_rs_get_list_length(u8 * aml_buffer,
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u32 aml_buffer_length, acpi_size * size_needed);
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acpi_status
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acpi_rs_get_aml_length(struct acpi_resource *resource_list,
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acpi_size resource_list_size, acpi_size * size_needed);
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acpi_status
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acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
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acpi_size * buffer_size_needed);
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acpi_status
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acpi_rs_convert_aml_to_resources(u8 * aml,
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u32 length,
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u32 offset, u8 resource_index, void **context);
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acpi_status
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acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
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acpi_size aml_size_needed, u8 * output_buffer);
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/*
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* rsaddr
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*/
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void
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acpi_rs_set_address_common(union aml_resource *aml,
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struct acpi_resource *resource);
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u8
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acpi_rs_get_address_common(struct acpi_resource *resource,
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union aml_resource *aml);
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/*
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* rsmisc
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*/
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acpi_status
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acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
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union aml_resource *aml,
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struct acpi_rsconvert_info *info);
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acpi_status
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acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
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union aml_resource *aml,
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struct acpi_rsconvert_info *info);
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/*
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* rsutils
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*/
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void
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acpi_rs_move_data(void *destination,
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void *source, u16 item_count, u8 move_type);
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u8 acpi_rs_decode_bitmask(u16 mask, u8 * list);
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u16 acpi_rs_encode_bitmask(u8 * list, u8 count);
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acpi_rs_length
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acpi_rs_get_resource_source(acpi_rs_length resource_length,
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acpi_rs_length minimum_length,
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struct acpi_resource_source *resource_source,
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union aml_resource *aml, char *string_ptr);
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acpi_rsdesc_size
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acpi_rs_set_resource_source(union aml_resource *aml,
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acpi_rs_length minimum_length,
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struct acpi_resource_source *resource_source);
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void
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acpi_rs_set_resource_header(u8 descriptor_type,
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acpi_rsdesc_size total_length,
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union aml_resource *aml);
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void
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acpi_rs_set_resource_length(acpi_rsdesc_size total_length,
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union aml_resource *aml);
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/*
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* rsdump
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*/
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void acpi_rs_dump_resource_list(struct acpi_resource *resource);
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void acpi_rs_dump_irq_list(u8 * route_table);
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/*
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* Resource conversion tables
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*/
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extern struct acpi_rsconvert_info acpi_rs_convert_dma[];
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extern struct acpi_rsconvert_info acpi_rs_convert_end_dpf[];
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extern struct acpi_rsconvert_info acpi_rs_convert_io[];
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extern struct acpi_rsconvert_info acpi_rs_convert_fixed_io[];
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extern struct acpi_rsconvert_info acpi_rs_convert_end_tag[];
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extern struct acpi_rsconvert_info acpi_rs_convert_memory24[];
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extern struct acpi_rsconvert_info acpi_rs_convert_generic_reg[];
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extern struct acpi_rsconvert_info acpi_rs_convert_memory32[];
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extern struct acpi_rsconvert_info acpi_rs_convert_fixed_memory32[];
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extern struct acpi_rsconvert_info acpi_rs_convert_address32[];
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extern struct acpi_rsconvert_info acpi_rs_convert_address16[];
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extern struct acpi_rsconvert_info acpi_rs_convert_ext_irq[];
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extern struct acpi_rsconvert_info acpi_rs_convert_address64[];
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extern struct acpi_rsconvert_info acpi_rs_convert_ext_address64[];
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extern struct acpi_rsconvert_info acpi_rs_convert_gpio[];
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extern struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[];
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extern struct acpi_rsconvert_info acpi_rs_convert_i2c_serial_bus[];
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extern struct acpi_rsconvert_info acpi_rs_convert_spi_serial_bus[];
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extern struct acpi_rsconvert_info acpi_rs_convert_uart_serial_bus[];
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/* These resources require separate get/set tables */
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extern struct acpi_rsconvert_info acpi_rs_get_irq[];
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extern struct acpi_rsconvert_info acpi_rs_get_start_dpf[];
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extern struct acpi_rsconvert_info acpi_rs_get_vendor_small[];
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extern struct acpi_rsconvert_info acpi_rs_get_vendor_large[];
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extern struct acpi_rsconvert_info acpi_rs_set_irq[];
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extern struct acpi_rsconvert_info acpi_rs_set_start_dpf[];
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extern struct acpi_rsconvert_info acpi_rs_set_vendor[];
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#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
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/*
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* rsinfo
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*/
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extern struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[];
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extern struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[];
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/*
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* rsdumpinfo
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*/
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extern struct acpi_rsdump_info acpi_rs_dump_irq[];
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extern struct acpi_rsdump_info acpi_rs_dump_prt[];
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extern struct acpi_rsdump_info acpi_rs_dump_dma[];
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extern struct acpi_rsdump_info acpi_rs_dump_start_dpf[];
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extern struct acpi_rsdump_info acpi_rs_dump_end_dpf[];
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extern struct acpi_rsdump_info acpi_rs_dump_io[];
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extern struct acpi_rsdump_info acpi_rs_dump_io_flags[];
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extern struct acpi_rsdump_info acpi_rs_dump_fixed_io[];
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extern struct acpi_rsdump_info acpi_rs_dump_vendor[];
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extern struct acpi_rsdump_info acpi_rs_dump_end_tag[];
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extern struct acpi_rsdump_info acpi_rs_dump_memory24[];
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extern struct acpi_rsdump_info acpi_rs_dump_memory32[];
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extern struct acpi_rsdump_info acpi_rs_dump_memory_flags[];
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extern struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[];
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extern struct acpi_rsdump_info acpi_rs_dump_address16[];
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extern struct acpi_rsdump_info acpi_rs_dump_address32[];
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extern struct acpi_rsdump_info acpi_rs_dump_address64[];
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extern struct acpi_rsdump_info acpi_rs_dump_ext_address64[];
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extern struct acpi_rsdump_info acpi_rs_dump_ext_irq[];
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extern struct acpi_rsdump_info acpi_rs_dump_generic_reg[];
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extern struct acpi_rsdump_info acpi_rs_dump_gpio[];
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extern struct acpi_rsdump_info acpi_rs_dump_fixed_dma[];
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extern struct acpi_rsdump_info acpi_rs_dump_common_serial_bus[];
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extern struct acpi_rsdump_info acpi_rs_dump_i2c_serial_bus[];
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extern struct acpi_rsdump_info acpi_rs_dump_spi_serial_bus[];
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extern struct acpi_rsdump_info acpi_rs_dump_uart_serial_bus[];
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extern struct acpi_rsdump_info acpi_rs_dump_general_flags[];
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#endif
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#endif /* __ACRESRC_H__ */
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