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 0000000..38ccaea --- /dev/null +++ b/security/apparmor/include/apparmor.h @@ -0,0 +1,92 @@ +/* + * AppArmor security module + * + * This file contains AppArmor basic global and lib definitions + * + * Copyright (C) 1998-2008 Novell/SUSE + * Copyright 2009-2010 Canonical Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2 of the + * License. + */ + +#ifndef __APPARMOR_H +#define __APPARMOR_H + +#include <linux/fs.h> + +#include "match.h" + +/* Control parameters settable through module/boot flags */ +extern enum audit_mode aa_g_audit; +extern int aa_g_audit_header; +extern int aa_g_debug; +extern int aa_g_lock_policy; +extern int aa_g_logsyscall; +extern int aa_g_paranoid_load; +extern unsigned int aa_g_path_max; + +/* + * DEBUG remains global (no per profile flag) since it is mostly used in sysctl + * which is not related to profile accesses. + */ + +#define AA_DEBUG(fmt, args...) \ + do { \ + if (aa_g_debug && printk_ratelimit()) \ + printk(KERN_DEBUG "AppArmor: " fmt, ##args); \ + } while (0) + +#define AA_ERROR(fmt, args...) \ + do { \ + if (printk_ratelimit()) \ + printk(KERN_ERR "AppArmor: " fmt, ##args); \ + } while (0) + +/* Flag indicating whether initialization completed */ +extern int apparmor_initialized __initdata; + +/* fn's in lib */ +char *aa_split_fqname(char *args, char **ns_name); +void aa_info_message(const char *str); +void *kvmalloc(size_t size); +void kvfree(void *buffer); + + +/** + * aa_strneq - compare null terminated @str to a non null terminated substring + * @str: a null terminated string + * @sub: a substring, not necessarily null terminated + * @len: length of @sub to compare + * + * The @str string must be full consumed for this to be considered a match + */ +static inline bool aa_strneq(const char *str, const char *sub, int len) +{ + return !strncmp(str, sub, len) && !str[len]; +} + +/** + * aa_dfa_null_transition - step to next state after null character + * @dfa: the dfa to match against + * @start: the state of the dfa to start matching in + * + * aa_dfa_null_transition transitions to the next state after a null + * character which is not used in standard matching and is only + * used to separate pairs. + */ +static inline unsigned int aa_dfa_null_transition(struct aa_dfa *dfa, + unsigned int start) +{ + /* the null transition only needs the string's null terminator byte */ + return aa_dfa_match_len(dfa, start, "", 1); +} + +static inline bool mediated_filesystem(struct inode *inode) +{ + return !(inode->i_sb->s_flags & MS_NOUSER); +} + +#endif /* __APPARMOR_H */ |
