2 * Access vector cache interface for object managers.
6 #ifndef _SELINUX_AVC_H_
7 #define _SELINUX_AVC_H_
9 #include <linux/stddef.h>
10 #include <linux/errno.h>
11 #include <linux/kernel.h>
12 #include <linux/kdev_t.h>
13 #include <linux/spinlock.h>
14 #include <linux/init.h>
15 #include <linux/audit.h>
16 #include <linux/lsm_audit.h>
17 #include <linux/in6.h>
18 #include <linux/path.h>
19 #include <asm/system.h>
21 #include "av_permissions.h"
24 #ifdef CONFIG_SECURITY_SELINUX_DEVELOP
25 extern int selinux_enforcing;
27 #define selinux_enforcing 1
31 * An entry in the AVC.
43 struct avc_cache_stats {
47 unsigned int allocations;
48 unsigned int reclaims;
56 void __init avc_init(void);
58 void avc_audit(u32 ssid, u32 tsid,
59 u16 tclass, u32 requested,
60 struct av_decision *avd,
62 struct common_audit_data *a);
64 #define AVC_STRICT 1 /* Ignore permissive mode. */
65 int avc_has_perm_noaudit(u32 ssid, u32 tsid,
66 u16 tclass, u32 requested,
68 struct av_decision *avd);
70 int avc_has_perm(u32 ssid, u32 tsid,
71 u16 tclass, u32 requested,
72 struct common_audit_data *auditdata);
74 u32 avc_policy_seqno(void);
76 #define AVC_CALLBACK_GRANT 1
77 #define AVC_CALLBACK_TRY_REVOKE 2
78 #define AVC_CALLBACK_REVOKE 4
79 #define AVC_CALLBACK_RESET 8
80 #define AVC_CALLBACK_AUDITALLOW_ENABLE 16
81 #define AVC_CALLBACK_AUDITALLOW_DISABLE 32
82 #define AVC_CALLBACK_AUDITDENY_ENABLE 64
83 #define AVC_CALLBACK_AUDITDENY_DISABLE 128
85 int avc_add_callback(int (*callback)(u32 event, u32 ssid, u32 tsid,
86 u16 tclass, u32 perms,
88 u32 events, u32 ssid, u32 tsid,
89 u16 tclass, u32 perms);
91 /* Exported to selinuxfs */
92 int avc_get_hash_stats(char *page);
93 extern unsigned int avc_cache_threshold;
95 /* Attempt to free avc node cache */
96 void avc_disable(void);
98 #ifdef CONFIG_SECURITY_SELINUX_AVC_STATS
99 DECLARE_PER_CPU(struct avc_cache_stats, avc_cache_stats);
102 #endif /* _SELINUX_AVC_H_ */