diff options
Diffstat (limited to 'security/apparmor/include/apparmor.h')
| -rw-r--r-- | security/apparmor/include/apparmor.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h new file mode 100644 index 00000000000..38ccaea0820 --- /dev/null +++ b/security/apparmor/include/apparmor.h | |||
| @@ -0,0 +1,92 @@ | |||
| 1 | /* | ||
| 2 | * AppArmor security module | ||
| 3 | * | ||
| 4 | * This file contains AppArmor basic global and lib definitions | ||
| 5 | * | ||
| 6 | * Copyright (C) 1998-2008 Novell/SUSE | ||
| 7 | * Copyright 2009-2010 Canonical Ltd. | ||
| 8 | * | ||
| 9 | * This program is free software; you can redistribute it and/or | ||
| 10 | * modify it under the terms of the GNU General Public License as | ||
| 11 | * published by the Free Software Foundation, version 2 of the | ||
| 12 | * License. | ||
| 13 | */ | ||
| 14 | |||
| 15 | #ifndef __APPARMOR_H | ||
| 16 | #define __APPARMOR_H | ||
| 17 | |||
| 18 | #include <linux/fs.h> | ||
| 19 | |||
| 20 | #include "match.h" | ||
| 21 | |||
| 22 | /* Control parameters settable through module/boot flags */ | ||
| 23 | extern enum audit_mode aa_g_audit; | ||
| 24 | extern int aa_g_audit_header; | ||
| 25 | extern int aa_g_debug; | ||
| 26 | extern int aa_g_lock_policy; | ||
| 27 | extern int aa_g_logsyscall; | ||
| 28 | extern int aa_g_paranoid_load; | ||
| 29 | extern unsigned int aa_g_path_max; | ||
| 30 | |||
| 31 | /* | ||
| 32 | * DEBUG remains global (no per profile flag) since it is mostly used in sysctl | ||
| 33 | * which is not related to profile accesses. | ||
| 34 | */ | ||
| 35 | |||
| 36 | #define AA_DEBUG(fmt, args...) \ | ||
| 37 | do { \ | ||
| 38 | if (aa_g_debug && printk_ratelimit()) \ | ||
| 39 | printk(KERN_DEBUG "AppArmor: " fmt, ##args); \ | ||
| 40 | } while (0) | ||
| 41 | |||
| 42 | #define AA_ERROR(fmt, args...) \ | ||
| 43 | do { \ | ||
| 44 | if (printk_ratelimit()) \ | ||
| 45 | printk(KERN_ERR "AppArmor: " fmt, ##args); \ | ||
| 46 | } while (0) | ||
| 47 | |||
| 48 | /* Flag indicating whether initialization completed */ | ||
| 49 | extern int apparmor_initialized __initdata; | ||
| 50 | |||
| 51 | /* fn's in lib */ | ||
| 52 | char *aa_split_fqname(char *args, char **ns_name); | ||
| 53 | void aa_info_message(const char *str); | ||
| 54 | void *kvmalloc(size_t size); | ||
| 55 | void kvfree(void *buffer); | ||
| 56 | |||
| 57 | |||
| 58 | /** | ||
| 59 | * aa_strneq - compare null terminated @str to a non null terminated substring | ||
| 60 | * @str: a null terminated string | ||
| 61 | * @sub: a substring, not necessarily null terminated | ||
| 62 | * @len: length of @sub to compare | ||
| 63 | * | ||
| 64 | * The @str string must be full consumed for this to be considered a match | ||
| 65 | */ | ||
| 66 | static inline bool aa_strneq(const char *str, const char *sub, int len) | ||
| 67 | { | ||
| 68 | return !strncmp(str, sub, len) && !str[len]; | ||
| 69 | } | ||
| 70 | |||
| 71 | /** | ||
| 72 | * aa_dfa_null_transition - step to next state after null character | ||
| 73 | * @dfa: the dfa to match against | ||
| 74 | * @start: the state of the dfa to start matching in | ||
| 75 | * | ||
| 76 | * aa_dfa_null_transition transitions to the next state after a null | ||
| 77 | * character which is not used in standard matching and is only | ||
| 78 | * used to separate pairs. | ||
| 79 | */ | ||
| 80 | static inline unsigned int aa_dfa_null_transition(struct aa_dfa *dfa, | ||
| 81 | unsigned int start) | ||
| 82 | { | ||
| 83 | /* the null transition only needs the string's null terminator byte */ | ||
| 84 | return aa_dfa_match_len(dfa, start, "", 1); | ||
| 85 | } | ||
| 86 | |||
| 87 | static inline bool mediated_filesystem(struct inode *inode) | ||
| 88 | { | ||
| 89 | return !(inode->i_sb->s_flags & MS_NOUSER); | ||
| 90 | } | ||
| 91 | |||
| 92 | #endif /* __APPARMOR_H */ | ||
