forked from luck/tmp_suning_uos_patched
1581e7ddbd
tomoyo_realpath_init() is unconditionally called by security_initcall(). But nobody will use realpath related functions if TOMOYO is not registered. So, let tomoyo_init() call tomoyo_realpath_init(). This patch saves 4KB of memory allocation if TOMOYO is not registered. Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp> Signed-off-by: James Morris <jmorris@namei.org>
67 lines
1.9 KiB
C
67 lines
1.9 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-pre 2009/02/01
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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 tomoyo_alloc(), so the caller must call tomoyo_free()
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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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/*
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* Allocate memory for ACL entry.
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* The RAM is chunked, so NEVER try to kfree() the returned pointer.
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*/
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void *tomoyo_alloc_element(const unsigned int size);
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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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/* Allocate memory for temporary use (e.g. permission checks). */
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void *tomoyo_alloc(const size_t size);
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/* Free memory allocated by tomoyo_alloc(). */
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void tomoyo_free(const void *p);
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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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