112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
/*
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* Five Event interface
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*
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* Copyright (C) 2018 Samsung Electronics, Inc.
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* Ivan Vorobiov, <i.vorobiov@samsung.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _FIVE_HOOKS_H
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#define _FIVE_HOOKS_H
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#include <linux/file.h>
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#include <linux/rculist.h>
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#include <linux/sched.h>
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#include <linux/task_integrity.h>
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void five_hook_file_processed(struct task_struct *task,
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struct file *file, void *xattr,
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size_t xattr_size, int result);
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void five_hook_task_forked(struct task_struct *parent,
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struct task_struct *child);
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void five_hook_file_skipped(struct task_struct *task,
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struct file *file);
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void five_hook_file_signed(struct task_struct *task,
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struct file *file, void *xattr,
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size_t xattr_size, int result);
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void five_hook_integrity_reset(struct task_struct *task,
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struct file *file,
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enum task_integrity_reset_cause cause);
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union five_list_options {
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void (*file_processed)(struct task_struct *task,
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enum task_integrity_value tint_value,
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struct file *file,
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void *xattr,
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size_t xattr_size,
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int result);
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void (*file_skipped)(struct task_struct *task,
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enum task_integrity_value tint_value,
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struct file *file);
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void (*task_forked)(struct task_struct *parent,
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enum task_integrity_value parent_tint_value,
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struct task_struct *child,
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enum task_integrity_value child_tint_value);
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void (*file_signed)(struct task_struct *task,
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enum task_integrity_value tint_value,
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struct file *file, void *xattr,
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size_t xattr_size, int result);
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void (*integrity_reset)(struct task_struct *task);
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void (*integrity_reset2)(struct task_struct *task,
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struct file *file,
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enum task_integrity_reset_cause cause);
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};
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struct five_hook_heads {
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struct list_head file_processed;
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struct list_head file_skipped;
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struct list_head file_signed;
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struct list_head task_forked;
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struct list_head integrity_reset;
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struct list_head integrity_reset2;
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};
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/*
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* FIVE module hook list structure.
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* For use with generic list macros for common operations.
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*/
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struct five_hook_list {
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struct list_head list;
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struct list_head *head;
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union five_list_options hook;
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};
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/*
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* Initializing a five_hook_list structure takes
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* up a lot of space in a source file. This macro takes
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* care of the common case and reduces the amount of
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* text involved.
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*/
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#define FIVE_HOOK_INIT(HEAD, HOOK) \
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{ .head = &five_hook_heads.HEAD, .hook = { .HEAD = HOOK } }
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extern struct five_hook_heads five_hook_heads;
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static inline void five_add_hooks(struct five_hook_list *hooks,
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int count)
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{
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int i;
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for (i = 0; i < count; i++)
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list_add_tail_rcu(&hooks[i].list, hooks[i].head);
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}
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int five_hook_wq_init(void);
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#endif /* _FIVE_HOOKS_H */
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