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c73bd6d4 KT |
1 | /* |
2 | * security/tomoyo/realpath.h | |
3 | * | |
4 | * Get the canonicalized absolute pathnames. The basis for TOMOYO. | |
5 | * | |
6 | * Copyright (C) 2005-2009 NTT DATA CORPORATION | |
7 | * | |
39826a1e | 8 | * Version: 2.2.0 2009/04/01 |
c73bd6d4 KT |
9 | * |
10 | */ | |
11 | ||
12 | #ifndef _SECURITY_TOMOYO_REALPATH_H | |
13 | #define _SECURITY_TOMOYO_REALPATH_H | |
14 | ||
15 | struct path; | |
16 | struct tomoyo_path_info; | |
17 | struct tomoyo_io_buffer; | |
18 | ||
19 | /* Convert binary string to ascii string. */ | |
20 | int tomoyo_encode(char *buffer, int buflen, const char *str); | |
21 | ||
22 | /* Returns realpath(3) of the given pathname but ignores chroot'ed root. */ | |
23 | int tomoyo_realpath_from_path2(struct path *path, char *newname, | |
24 | int newname_len); | |
25 | ||
26 | /* | |
27 | * Returns realpath(3) of the given pathname but ignores chroot'ed root. | |
28 | * These functions use tomoyo_alloc(), so the caller must call tomoyo_free() | |
29 | * if these functions didn't return NULL. | |
30 | */ | |
31 | char *tomoyo_realpath(const char *pathname); | |
32 | /* | |
33 | * Same with tomoyo_realpath() except that it doesn't follow the final symlink. | |
34 | */ | |
35 | char *tomoyo_realpath_nofollow(const char *pathname); | |
36 | /* Same with tomoyo_realpath() except that the pathname is already solved. */ | |
37 | char *tomoyo_realpath_from_path(struct path *path); | |
38 | ||
39 | /* | |
40 | * Allocate memory for ACL entry. | |
41 | * The RAM is chunked, so NEVER try to kfree() the returned pointer. | |
42 | */ | |
43 | void *tomoyo_alloc_element(const unsigned int size); | |
44 | ||
45 | /* | |
46 | * Keep the given name on the RAM. | |
47 | * The RAM is shared, so NEVER try to modify or kfree() the returned name. | |
48 | */ | |
49 | const struct tomoyo_path_info *tomoyo_save_name(const char *name); | |
50 | ||
51 | /* Allocate memory for temporary use (e.g. permission checks). */ | |
52 | void *tomoyo_alloc(const size_t size); | |
53 | ||
54 | /* Free memory allocated by tomoyo_alloc(). */ | |
55 | void tomoyo_free(const void *p); | |
56 | ||
57 | /* Check for memory usage. */ | |
58 | int tomoyo_read_memory_counter(struct tomoyo_io_buffer *head); | |
59 | ||
60 | /* Set memory quota. */ | |
61 | int tomoyo_write_memory_quota(struct tomoyo_io_buffer *head); | |
62 | ||
1581e7dd TH |
63 | /* Initialize realpath related code. */ |
64 | void __init tomoyo_realpath_init(void); | |
65 | ||
c73bd6d4 | 66 | #endif /* !defined(_SECURITY_TOMOYO_REALPATH_H) */ |