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22#include <linux/fs.h>
23#include <linux/audit.h>
24#include <linux/skbuff.h>
25
26
27
28
29
30#define AUDIT_DEBUG 0
31
32
33
34
35enum audit_state {
36 AUDIT_DISABLED,
37
38
39 AUDIT_SETUP_CONTEXT,
40
41
42
43 AUDIT_BUILD_CONTEXT,
44
45
46
47
48
49 AUDIT_RECORD_CONTEXT
50
51
52
53};
54
55
56struct audit_watch;
57struct audit_tree;
58struct audit_chunk;
59
60struct audit_entry {
61 struct list_head list;
62 struct rcu_head rcu;
63 struct audit_krule rule;
64};
65
66#ifdef CONFIG_AUDIT
67extern int audit_enabled;
68extern int audit_ever_enabled;
69#endif
70
71extern int audit_pid;
72
73#define AUDIT_INODE_BUCKETS 32
74extern struct list_head audit_inode_hash[AUDIT_INODE_BUCKETS];
75
76static inline int audit_hash_ino(u32 ino)
77{
78 return (ino & (AUDIT_INODE_BUCKETS-1));
79}
80
81extern int audit_match_class(int class, unsigned syscall);
82extern int audit_comparator(const u32 left, const u32 op, const u32 right);
83extern int audit_compare_dname_path(const char *dname, const char *path,
84 int *dirlen);
85extern struct sk_buff * audit_make_reply(int pid, int seq, int type,
86 int done, int multi,
87 void *payload, int size);
88extern void audit_send_reply(int pid, int seq, int type,
89 int done, int multi,
90 void *payload, int size);
91extern void audit_panic(const char *message);
92
93struct audit_netlink_list {
94 int pid;
95 struct sk_buff_head q;
96};
97
98int audit_send_list(void *);
99
100extern int selinux_audit_rule_update(void);
101
102extern struct mutex audit_filter_mutex;
103extern void audit_free_rule_rcu(struct rcu_head *);
104extern struct list_head audit_filter_list[];
105
106
107extern unsigned long audit_watch_inode(struct audit_watch *watch);
108extern dev_t audit_watch_dev(struct audit_watch *watch);
109extern void audit_put_watch(struct audit_watch *watch);
110extern void audit_get_watch(struct audit_watch *watch);
111extern int audit_to_watch(struct audit_krule *krule, char *path, int len, u32 op);
112extern int audit_add_watch(struct audit_krule *krule);
113extern void audit_remove_watch(struct audit_watch *watch);
114extern void audit_remove_watch_rule(struct audit_krule *krule, struct list_head *list);
115extern void audit_inotify_unregister(struct list_head *in_list);
116extern char *audit_watch_path(struct audit_watch *watch);
117extern struct list_head *audit_watch_rules(struct audit_watch *watch);
118
119extern struct audit_entry *audit_dupe_rule(struct audit_krule *old,
120 struct audit_watch *watch);
121
122#ifdef CONFIG_AUDIT_TREE
123extern struct audit_chunk *audit_tree_lookup(const struct inode *);
124extern void audit_put_chunk(struct audit_chunk *);
125extern int audit_tree_match(struct audit_chunk *, struct audit_tree *);
126extern int audit_make_tree(struct audit_krule *, char *, u32);
127extern int audit_add_tree_rule(struct audit_krule *);
128extern int audit_remove_tree_rule(struct audit_krule *);
129extern void audit_trim_trees(void);
130extern int audit_tag_tree(char *old, char *new);
131extern const char *audit_tree_path(struct audit_tree *);
132extern void audit_put_tree(struct audit_tree *);
133extern void audit_kill_trees(struct list_head *);
134#else
135#define audit_remove_tree_rule(rule) BUG()
136#define audit_add_tree_rule(rule) -EINVAL
137#define audit_make_tree(rule, str, op) -EINVAL
138#define audit_trim_trees() (void)0
139#define audit_put_tree(tree) (void)0
140#define audit_tag_tree(old, new) -EINVAL
141#define audit_tree_path(rule) ""
142#define audit_kill_trees(list) BUG()
143#endif
144
145extern char *audit_unpack_string(void **, size_t *, size_t);
146
147extern pid_t audit_sig_pid;
148extern uid_t audit_sig_uid;
149extern u32 audit_sig_sid;
150
151#ifdef CONFIG_AUDITSYSCALL
152extern int __audit_signal_info(int sig, struct task_struct *t);
153static inline int audit_signal_info(int sig, struct task_struct *t)
154{
155 if (unlikely((audit_pid && t->tgid == audit_pid) ||
156 (audit_signals && !audit_dummy_context())))
157 return __audit_signal_info(sig, t);
158 return 0;
159}
160extern void audit_filter_inodes(struct task_struct *, struct audit_context *);
161extern struct list_head *audit_killed_trees(void);
162#else
163#define audit_signal_info(s,t) AUDIT_DISABLED
164#define audit_filter_inodes(t,c) AUDIT_DISABLED
165#endif
166
167extern struct mutex audit_cmd_mutex;
168