8e2d39a166
TOMOYO was using own memory usage counter for detecting memory leak. But as kernel 2.6.31 introduced memory leak detection mechanism ( CONFIG_DEBUG_KMEMLEAK ), we no longer need to have own counter. We remove usage counter for memory used for permission checks, but we keep usage counter for memory used for policy so that we can apply quota. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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* security/tomoyo/realpath.h
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*
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* Get the canonicalized absolute pathnames. The basis for TOMOYO.
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*
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* Copyright (C) 2005-2009 NTT DATA CORPORATION
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*
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* Version: 2.2.0 2009/04/01
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*
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*/
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#ifndef _SECURITY_TOMOYO_REALPATH_H
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#define _SECURITY_TOMOYO_REALPATH_H
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struct path;
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struct tomoyo_path_info;
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struct tomoyo_io_buffer;
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/* Convert binary string to ascii string. */
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int tomoyo_encode(char *buffer, int buflen, const char *str);
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/* Returns realpath(3) of the given pathname but ignores chroot'ed root. */
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int tomoyo_realpath_from_path2(struct path *path, char *newname,
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int newname_len);
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/*
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* Returns realpath(3) of the given pathname but ignores chroot'ed root.
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* These functions use kzalloc(), so the caller must call kfree()
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* if these functions didn't return NULL.
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*/
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char *tomoyo_realpath(const char *pathname);
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/*
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* Same with tomoyo_realpath() except that it doesn't follow the final symlink.
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*/
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char *tomoyo_realpath_nofollow(const char *pathname);
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/* Same with tomoyo_realpath() except that the pathname is already solved. */
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char *tomoyo_realpath_from_path(struct path *path);
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/* Check memory quota. */
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bool tomoyo_memory_ok(void *ptr);
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/*
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* Keep the given name on the RAM.
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* The RAM is shared, so NEVER try to modify or kfree() the returned name.
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*/
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const struct tomoyo_path_info *tomoyo_save_name(const char *name);
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/* Check for memory usage. */
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int tomoyo_read_memory_counter(struct tomoyo_io_buffer *head);
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/* Set memory quota. */
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int tomoyo_write_memory_quota(struct tomoyo_io_buffer *head);
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/* Initialize realpath related code. */
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void __init tomoyo_realpath_init(void);
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#endif /* !defined(_SECURITY_TOMOYO_REALPATH_H) */
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