[GitHub/mt8127/android_kernel_alcatel_ttab.git] / security / selinux / include / security.h

/*
 * Security server interface.
 *
 * Author : Stephen Smalley, <sds@epoch.ncsc.mil>
 *
 */

#ifndef _SELINUX_SECURITY_H_
#define _SELINUX_SECURITY_H_

#include "flask.h"

#define SECSID_NULL			0x00000000 /* unspecified SID */
#define SECSID_WILD			0xffffffff /* wildcard SID */
#define SECCLASS_NULL			0x0000 /* no class */

#define SELINUX_MAGIC 0xf97cff8c

/* Identify specific policy version changes */
#define POLICYDB_VERSION_BASE		15
#define POLICYDB_VERSION_BOOL		16
#define POLICYDB_VERSION_IPV6		17
#define POLICYDB_VERSION_NLCLASS	18
#define POLICYDB_VERSION_VALIDATETRANS	19
#define POLICYDB_VERSION_MLS		19
#define POLICYDB_VERSION_AVTAB		20
#define POLICYDB_VERSION_RANGETRANS	21
#define POLICYDB_VERSION_POLCAP		22

/* Range of policy versions we understand*/
#define POLICYDB_VERSION_MIN   POLICYDB_VERSION_BASE
#ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX
#define POLICYDB_VERSION_MAX	CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE
#else
#define POLICYDB_VERSION_MAX	POLICYDB_VERSION_POLCAP
#endif

#define CONTEXT_MNT	0x01
#define FSCONTEXT_MNT	0x02
#define ROOTCONTEXT_MNT	0x04
#define DEFCONTEXT_MNT	0x08

struct netlbl_lsm_secattr;

extern int selinux_enabled;
extern int selinux_mls_enabled;

/* Policy capabilities */
enum {
	POLICYDB_CAPABILITY_NETPEER,
	__POLICYDB_CAPABILITY_MAX
};
#define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1)

extern int selinux_policycap_netpeer;

int security_load_policy(void * data, size_t len);

int security_policycap_supported(unsigned int req_cap);

#define SEL_VEC_MAX 32
struct av_decision {
	u32 allowed;
	u32 decided;
	u32 auditallow;
	u32 auditdeny;
	u32 seqno;
};

int security_compute_av(u32 ssid, u32 tsid,
	u16 tclass, u32 requested,
	struct av_decision *avd);

int security_transition_sid(u32 ssid, u32 tsid,
	u16 tclass, u32 *out_sid);

int security_member_sid(u32 ssid, u32 tsid,
	u16 tclass, u32 *out_sid);

int security_change_sid(u32 ssid, u32 tsid,
	u16 tclass, u32 *out_sid);

int security_sid_to_context(u32 sid, char **scontext,
	u32 *scontext_len);

int security_context_to_sid(char *scontext, u32 scontext_len,
	u32 *out_sid);

int security_context_to_sid_default(char *scontext, u32 scontext_len,
				    u32 *out_sid, u32 def_sid, gfp_t gfp_flags);

int security_get_user_sids(u32 callsid, char *username,
			   u32 **sids, u32 *nel);

int security_port_sid(u16 domain, u16 type, u8 protocol, u16 port,
	u32 *out_sid);

int security_netif_sid(char *name, u32 *if_sid);

int security_node_sid(u16 domain, void *addr, u32 addrlen,
	u32 *out_sid);

int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
                                 u16 tclass);

int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid);

int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type,
				 u32 xfrm_sid,
				 u32 *peer_sid);

int security_get_classes(char ***classes, int *nclasses);
int security_get_permissions(char *class, char ***perms, int *nperms);
int security_get_reject_unknown(void);
int security_get_allow_unknown(void);

#define SECURITY_FS_USE_XATTR		1 /* use xattr */
#define SECURITY_FS_USE_TRANS		2 /* use transition SIDs, e.g. devpts/tmpfs */
#define SECURITY_FS_USE_TASK		3 /* use task SIDs, e.g. pipefs/sockfs */
#define SECURITY_FS_USE_GENFS		4 /* use the genfs support */
#define SECURITY_FS_USE_NONE		5 /* no labeling support */
#define SECURITY_FS_USE_MNTPOINT	6 /* use mountpoint labeling */

int security_fs_use(const char *fstype, unsigned int *behavior,
	u32 *sid);

int security_genfs_sid(const char *fstype, char *name, u16 sclass,
	u32 *sid);

#ifdef CONFIG_NETLABEL
int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
				   u32 *sid);

int security_netlbl_sid_to_secattr(u32 sid,
				   struct netlbl_lsm_secattr *secattr);
#else
static inline int security_netlbl_secattr_to_sid(
					    struct netlbl_lsm_secattr *secattr,
					    u32 *sid)
{
	return -EIDRM;
}

static inline int security_netlbl_sid_to_secattr(u32 sid,
					   struct netlbl_lsm_secattr *secattr)
{
	return -ENOENT;
}
#endif /* CONFIG_NETLABEL */

const char *security_get_initial_sid_context(u32 sid);

#endif /* _SELINUX_SECURITY_H_ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Security server interface.
	3	*
	4	* Author : Stephen Smalley, <sds@epoch.ncsc.mil>
	5	*
	6	*/
	7
	8	#ifndef _SELINUX_SECURITY_H_
	9	#define _SELINUX_SECURITY_H_
	10
	11	#include "flask.h"
	12
	13	#define SECSID_NULL 0x00000000 /* unspecified SID */
	14	#define SECSID_WILD 0xffffffff /* wildcard SID */
	15	#define SECCLASS_NULL 0x0000 /* no class */
	16
	17	#define SELINUX_MAGIC 0xf97cff8c
	18
	19	/* Identify specific policy version changes */
	20	#define POLICYDB_VERSION_BASE 15
	21	#define POLICYDB_VERSION_BOOL 16
	22	#define POLICYDB_VERSION_IPV6 17
	23	#define POLICYDB_VERSION_NLCLASS 18
	24	#define POLICYDB_VERSION_VALIDATETRANS 19
	25	#define POLICYDB_VERSION_MLS 19
782ebb99	26	#define POLICYDB_VERSION_AVTAB 20
f3f87714	27	#define POLICYDB_VERSION_RANGETRANS 21
3bb56b25	28	#define POLICYDB_VERSION_POLCAP 22
1da177e4 LT	29
	30	/* Range of policy versions we understand*/
	31	#define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
016b9bdb SS	32	#ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX
	33	#define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE
	34	#else
3bb56b25	35	#define POLICYDB_VERSION_MAX POLICYDB_VERSION_POLCAP
016b9bdb	36	#endif
1da177e4	37
e0007529 EP	38	#define CONTEXT_MNT 0x01
	39	#define FSCONTEXT_MNT 0x02
	40	#define ROOTCONTEXT_MNT 0x04
	41	#define DEFCONTEXT_MNT 0x08
	42
5778eabd	43	struct netlbl_lsm_secattr;
bb22f580	44
1da177e4	45	extern int selinux_enabled;
1da177e4 LT	46	extern int selinux_mls_enabled;
1da177e4 LT	47
3bb56b25 PM	48	/* Policy capabilities */
	49	enum {
	50	POLICYDB_CAPABILITY_NETPEER,
	51	__POLICYDB_CAPABILITY_MAX
	52	};
	53	#define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1)
	54
	55	extern int selinux_policycap_netpeer;
	56
1da177e4 LT	57	int security_load_policy(void * data, size_t len);
1da177e4 LT	58
3bb56b25 PM	59	int security_policycap_supported(unsigned int req_cap);
3bb56b25 PM	60
e47c8fc5	61	#define SEL_VEC_MAX 32
1da177e4 LT	62	struct av_decision {
	63	u32 allowed;
	64	u32 decided;
	65	u32 auditallow;
	66	u32 auditdeny;
	67	u32 seqno;
	68	};
	69
	70	int security_compute_av(u32 ssid, u32 tsid,
	71	u16 tclass, u32 requested,
	72	struct av_decision *avd);
	73
	74	int security_transition_sid(u32 ssid, u32 tsid,
	75	u16 tclass, u32 *out_sid);
	76
	77	int security_member_sid(u32 ssid, u32 tsid,
	78	u16 tclass, u32 *out_sid);
	79
	80	int security_change_sid(u32 ssid, u32 tsid,
	81	u16 tclass, u32 *out_sid);
	82
	83	int security_sid_to_context(u32 sid, char **scontext,
	84	u32 *scontext_len);
	85
	86	int security_context_to_sid(char *scontext, u32 scontext_len,
	87	u32 *out_sid);
	88
869ab514 SS	89	int security_context_to_sid_default(char *scontext, u32 scontext_len,
869ab514 SS	90	u32 *out_sid, u32 def_sid, gfp_t gfp_flags);
f5c1d5b2	91
1da177e4 LT	92	int security_get_user_sids(u32 callsid, char *username,
	93	u32 *sids, u32 nel);
	94
	95	int security_port_sid(u16 domain, u16 type, u8 protocol, u16 port,
	96	u32 *out_sid);
	97
e8bfdb9d	98	int security_netif_sid(char name, u32 if_sid);
1da177e4 LT	99
	100	int security_node_sid(u16 domain, void *addr, u32 addrlen,
	101	u32 *out_sid);
	102
	103	int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
	104	u16 tclass);
	105
08554d6b VY	106	int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid);
08554d6b VY	107
220deb96 PM	108	int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type,
	109	u32 xfrm_sid,
	110	u32 *peer_sid);
	111
55fcf09b CP	112	int security_get_classes(char **classes, int nclasses);
55fcf09b CP	113	int security_get_permissions(char class, char *perms, int nperms);
3f12070e EP	114	int security_get_reject_unknown(void);
3f12070e EP	115	int security_get_allow_unknown(void);
55fcf09b	116
1da177e4 LT	117	#define SECURITY_FS_USE_XATTR 1 /* use xattr */
	118	#define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */
	119	#define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */
	120	#define SECURITY_FS_USE_GENFS 4 /* use the genfs support */
	121	#define SECURITY_FS_USE_NONE 5 /* no labeling support */
	122	#define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */
	123
	124	int security_fs_use(const char fstype, unsigned int behavior,
	125	u32 *sid);
	126
	127	int security_genfs_sid(const char fstype, char name, u16 sclass,
	128	u32 *sid);
	129
5778eabd PM	130	#ifdef CONFIG_NETLABEL
5778eabd PM	131	int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
5778eabd PM	132	u32 *sid);
	133
	134	int security_netlbl_sid_to_secattr(u32 sid,
	135	struct netlbl_lsm_secattr *secattr);
	136	#else
	137	static inline int security_netlbl_secattr_to_sid(
	138	struct netlbl_lsm_secattr *secattr,
5778eabd PM	139	u32 *sid)
	140	{
	141	return -EIDRM;
	142	}
	143
	144	static inline int security_netlbl_sid_to_secattr(u32 sid,
	145	struct netlbl_lsm_secattr *secattr)
	146	{
	147	return -ENOENT;
	148	}
	149	#endif /* CONFIG_NETLABEL */
	150
f0ee2e46 JC	151	const char *security_get_initial_sid_context(u32 sid);
f0ee2e46 JC	152
1da177e4 LT	153	#endif /* _SELINUX_SECURITY_H_ */
1da177e4 LT	154