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3c7db22a19
Add error check after all calls to acpi_ns_get_pathname_length. Add status return from acpi_ns_build_external_path and check after all calls. Add parameter validation to acpi_ut_initialize_buffer. Reported by and initial patch by Ingo Molnar. http://lkml.org/lkml/2008/7/21/176 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
306 lines
9.2 KiB
C
306 lines
9.2 KiB
C
/******************************************************************************
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*
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* Name: acnamesp.h - Namespace subcomponent prototypes and defines
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2008, 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 __ACNAMESP_H__
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#define __ACNAMESP_H__
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/* To search the entire name space, pass this as search_base */
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#define ACPI_NS_ALL ((acpi_handle)0)
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/*
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* Elements of acpi_ns_properties are bit significant
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* and should be one-to-one with values of acpi_object_type
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*/
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#define ACPI_NS_NORMAL 0
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#define ACPI_NS_NEWSCOPE 1 /* a definition of this type opens a name scope */
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#define ACPI_NS_LOCAL 2 /* suppress search of enclosing scopes */
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/* Flags for acpi_ns_lookup, acpi_ns_search_and_enter */
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#define ACPI_NS_NO_UPSEARCH 0
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#define ACPI_NS_SEARCH_PARENT 0x01
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#define ACPI_NS_DONT_OPEN_SCOPE 0x02
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#define ACPI_NS_NO_PEER_SEARCH 0x04
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#define ACPI_NS_ERROR_IF_FOUND 0x08
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#define ACPI_NS_PREFIX_IS_SCOPE 0x10
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#define ACPI_NS_EXTERNAL 0x20
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#define ACPI_NS_TEMPORARY 0x40
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/* Flags for acpi_ns_walk_namespace */
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#define ACPI_NS_WALK_NO_UNLOCK 0
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#define ACPI_NS_WALK_UNLOCK 0x01
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#define ACPI_NS_WALK_TEMP_NODES 0x02
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/*
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* nsinit - Namespace initialization
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*/
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acpi_status acpi_ns_initialize_objects(void);
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acpi_status acpi_ns_initialize_devices(void);
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/*
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* nsload - Namespace loading
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*/
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acpi_status acpi_ns_load_namespace(void);
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acpi_status
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acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node);
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/*
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* nswalk - walk the namespace
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*/
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acpi_status
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acpi_ns_walk_namespace(acpi_object_type type,
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acpi_handle start_object,
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u32 max_depth,
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u32 flags,
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acpi_walk_callback user_function,
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void *context, void **return_value);
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struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node
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*parent, struct acpi_namespace_node
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*child);
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/*
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* nsparse - table parsing
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*/
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acpi_status
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acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node);
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acpi_status
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acpi_ns_one_complete_parse(u32 pass_number,
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u32 table_index,
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struct acpi_namespace_node *start_node);
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/*
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* nsaccess - Top-level namespace access
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*/
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acpi_status acpi_ns_root_initialize(void);
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acpi_status
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acpi_ns_lookup(union acpi_generic_state *scope_info,
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char *name,
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acpi_object_type type,
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acpi_interpreter_mode interpreter_mode,
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u32 flags,
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struct acpi_walk_state *walk_state,
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struct acpi_namespace_node **ret_node);
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/*
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* nsalloc - Named object allocation/deallocation
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*/
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struct acpi_namespace_node *acpi_ns_create_node(u32 name);
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void acpi_ns_delete_node(struct acpi_namespace_node *node);
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void
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acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
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void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
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void acpi_ns_detach_object(struct acpi_namespace_node *node);
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void acpi_ns_delete_children(struct acpi_namespace_node *parent);
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int acpi_ns_compare_names(char *name1, char *name2);
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/*
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* nsdump - Namespace dump/print utilities
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*/
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#ifdef ACPI_FUTURE_USAGE
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void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
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#endif /* ACPI_FUTURE_USAGE */
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void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
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void
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acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component);
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void acpi_ns_print_pathname(u32 num_segments, char *pathname);
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acpi_status
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acpi_ns_dump_one_object(acpi_handle obj_handle,
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u32 level, void *context, void **return_value);
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#ifdef ACPI_FUTURE_USAGE
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void
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acpi_ns_dump_objects(acpi_object_type type,
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u8 display_type,
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u32 max_depth,
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acpi_owner_id owner_id, acpi_handle start_handle);
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#endif /* ACPI_FUTURE_USAGE */
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/*
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* nseval - Namespace evaluation functions
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*/
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acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
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/*
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* nsnames - Name and Scope manipulation
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*/
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u32 acpi_ns_opens_scope(acpi_object_type type);
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acpi_status
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acpi_ns_build_external_path(struct acpi_namespace_node *node,
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acpi_size size, char *name_buffer);
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char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
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char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
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acpi_status
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acpi_ns_handle_to_pathname(acpi_handle target_handle,
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struct acpi_buffer *buffer);
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u8
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acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
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acpi_status
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acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
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const char *external_pathname,
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u32 flags, struct acpi_namespace_node **out_node);
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acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
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/*
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* nsobject - Object management for namespace nodes
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*/
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acpi_status
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acpi_ns_attach_object(struct acpi_namespace_node *node,
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union acpi_operand_object *object, acpi_object_type type);
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union acpi_operand_object *acpi_ns_get_attached_object(struct
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acpi_namespace_node
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*node);
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union acpi_operand_object *acpi_ns_get_secondary_object(union
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acpi_operand_object
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*obj_desc);
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acpi_status
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acpi_ns_attach_data(struct acpi_namespace_node *node,
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acpi_object_handler handler, void *data);
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acpi_status
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acpi_ns_detach_data(struct acpi_namespace_node *node,
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acpi_object_handler handler);
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acpi_status
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acpi_ns_get_attached_data(struct acpi_namespace_node *node,
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acpi_object_handler handler, void **data);
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/*
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* nssearch - Namespace searching and entry
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*/
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acpi_status
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acpi_ns_search_and_enter(u32 entry_name,
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struct acpi_walk_state *walk_state,
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struct acpi_namespace_node *node,
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acpi_interpreter_mode interpreter_mode,
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acpi_object_type type,
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u32 flags, struct acpi_namespace_node **ret_node);
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acpi_status
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acpi_ns_search_one_scope(u32 entry_name,
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struct acpi_namespace_node *node,
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acpi_object_type type,
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struct acpi_namespace_node **ret_node);
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void
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acpi_ns_install_node(struct acpi_walk_state *walk_state,
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struct acpi_namespace_node *parent_node,
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struct acpi_namespace_node *node, acpi_object_type type);
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/*
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* nsutils - Utility functions
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*/
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u8 acpi_ns_valid_root_prefix(char prefix);
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acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
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u32 acpi_ns_local(acpi_object_type type);
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void
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acpi_ns_report_error(const char *module_name,
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u32 line_number,
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const char *internal_name, acpi_status lookup_status);
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void
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acpi_ns_report_method_error(const char *module_name,
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u32 line_number,
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const char *message,
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struct acpi_namespace_node *node,
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const char *path, acpi_status lookup_status);
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void
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acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
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acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
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void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
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acpi_status
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acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
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acpi_status
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acpi_ns_externalize_name(u32 internal_name_length,
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const char *internal_name,
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u32 * converted_name_length, char **converted_name);
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struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle);
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acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node);
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void acpi_ns_terminate(void);
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struct acpi_namespace_node *acpi_ns_get_parent_node(struct acpi_namespace_node
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*node);
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struct acpi_namespace_node *acpi_ns_get_next_valid_node(struct
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acpi_namespace_node
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*node);
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#endif /* __ACNAMESP_H__ */
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