/* * Access vector cache interface for object managers. * * Author : Stephen Smalley, <sds@epoch.ncsc.mil> */ /* Ported to Xen 3.0, George Coker, <gscoker@alpha.ncsc.mil> */#ifndef _FLASK_AVC_H_#define _FLASK_AVC_H_#include <xen/errno.h>#include <xen/lib.h>#include <xen/spinlock.h>#include <asm/percpu.h>#include "flask.h"#include "av_permissions.h"#include "security.h"#ifdef FLASK_DEVELOPextern int flask_enforcing;#else#define flask_enforcing 1#endif/* * An entry in the AVC. */struct avc_entry;struct task_struct;struct vfsmount;struct dentry;struct inode;struct sock;struct sk_buff;/* Auxiliary data to use in generating the audit record. */struct avc_audit_data {    char    type;#define AVC_AUDIT_DATA_FS   1#define AVC_AUDIT_DATA_NET  2#define AVC_AUDIT_DATA_CAP  3#define AVC_AUDIT_DATA_IPC  4    struct domain *d;};#define v4info fam.v4#define v6info fam.v6/* Initialize an AVC audit data structure. */#define AVC_AUDIT_DATA_INIT(_d,_t) \        { memset((_d), 0, sizeof(struct avc_audit_data)); \         (_d)->type = AVC_AUDIT_DATA_##_t; }/* * AVC statistics */struct avc_cache_stats{    unsigned int lookups;    unsigned int hits;    unsigned int misses;    unsigned int allocations;    unsigned int reclaims;    unsigned int frees;};/* * AVC operations */void avc_init(void);void avc_audit(u32 ssid, u32 tsid, u16 tclass, u32 requested,        struct av_decision *avd, int result, struct avc_audit_data *auditdata);int avc_has_perm_noaudit(u32 ssid, u32 tsid, u16 tclass, u32 requested,                                                     struct av_decision *avd);int avc_has_perm(u32 ssid, u32 tsid, u16 tclass, u32 requested,                                             struct avc_audit_data *auditdata);#define AVC_CALLBACK_GRANT        1#define AVC_CALLBACK_TRY_REVOKE        2#define AVC_CALLBACK_REVOKE        4#define AVC_CALLBACK_RESET        8#define AVC_CALLBACK_AUDITALLOW_ENABLE    16#define AVC_CALLBACK_AUDITALLOW_DISABLE    32#define AVC_CALLBACK_AUDITDENY_ENABLE    64#define AVC_CALLBACK_AUDITDENY_DISABLE    128int avc_add_callback(int (*callback)(u32 event, u32 ssid, u32 tsid,                        u16 tclass, u32 perms, u32 *out_retained), u32 events,                                     u32 ssid, u32 tsid, u16 tclass, u32 perms);/* Exported to selinuxfs */int avc_get_hash_stats(char *buf, uint32_t size);extern unsigned int avc_cache_threshold;#ifdef FLASK_AVC_STATSDECLARE_PER_CPU(struct avc_cache_stats, avc_cache_stats);#endif#endif /* _FLASK_AVC_H_ */