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* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
80 lines
3.1 KiB
C
80 lines
3.1 KiB
C
/**************************************************************************
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*
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* Copyright 2006 Tungsten Graphics, Inc., Bismack, ND. USA.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*
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**************************************************************************/
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/*
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* Simple open hash tab implementation.
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*
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* Authors:
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* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
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*/
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#ifndef DRM_HASHTAB_H
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#define DRM_HASHTAB_H
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#include <linux/list.h>
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#define drm_hash_entry(_ptr, _type, _member) container_of(_ptr, _type, _member)
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struct drm_hash_item {
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struct hlist_node head;
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unsigned long key;
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};
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struct drm_open_hash {
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struct hlist_head *table;
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u8 order;
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};
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extern int drm_ht_create(struct drm_open_hash *ht, unsigned int order);
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extern int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item);
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extern int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,
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unsigned long seed, int bits, int shift,
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unsigned long add);
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extern int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key, struct drm_hash_item **item);
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extern void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key);
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extern int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key);
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extern int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item);
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extern void drm_ht_remove(struct drm_open_hash *ht);
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/*
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* RCU-safe interface
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*
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* The user of this API needs to make sure that two or more instances of the
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* hash table manipulation functions are never run simultaneously.
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* The lookup function drm_ht_find_item_rcu may, however, run simultaneously
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* with any of the manipulation functions as long as it's called from within
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* an RCU read-locked section.
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*/
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#define drm_ht_insert_item_rcu drm_ht_insert_item
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#define drm_ht_just_insert_please_rcu drm_ht_just_insert_please
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#define drm_ht_remove_key_rcu drm_ht_remove_key
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#define drm_ht_remove_item_rcu drm_ht_remove_item
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#define drm_ht_find_item_rcu drm_ht_find_item
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#endif
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