[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

/* 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_RANGETRANS
#endif

struct netlbl_lsm_secattr;

extern int selinux_enabled;
extern int selinux_mls_enabled;

int security_load_policy(void * data, size_t len);

#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);

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_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 base_sid,
				   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 base_sid,
					    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
1da177e4 LT	28
	29	/* Range of policy versions we understand*/
	30	#define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
016b9bdb SS	31	#ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX
	32	#define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE
	33	#else
f3f87714	34	#define POLICYDB_VERSION_MAX POLICYDB_VERSION_RANGETRANS
016b9bdb	35	#endif
1da177e4	36
5778eabd	37	struct netlbl_lsm_secattr;
bb22f580	38
1da177e4	39	extern int selinux_enabled;
1da177e4 LT	40	extern int selinux_mls_enabled;
	41
	42	int security_load_policy(void * data, size_t len);
	43
e47c8fc5	44	#define SEL_VEC_MAX 32
1da177e4 LT	45	struct av_decision {
	46	u32 allowed;
	47	u32 decided;
	48	u32 auditallow;
	49	u32 auditdeny;
	50	u32 seqno;
	51	};
	52
	53	int security_compute_av(u32 ssid, u32 tsid,
	54	u16 tclass, u32 requested,
	55	struct av_decision *avd);
	56
	57	int security_transition_sid(u32 ssid, u32 tsid,
	58	u16 tclass, u32 *out_sid);
	59
	60	int security_member_sid(u32 ssid, u32 tsid,
	61	u16 tclass, u32 *out_sid);
	62
	63	int security_change_sid(u32 ssid, u32 tsid,
	64	u16 tclass, u32 *out_sid);
	65
	66	int security_sid_to_context(u32 sid, char **scontext,
	67	u32 *scontext_len);
	68
	69	int security_context_to_sid(char *scontext, u32 scontext_len,
	70	u32 *out_sid);
	71
f5c1d5b2 JM	72	int security_context_to_sid_default(char scontext, u32 scontext_len, u32 out_sid, u32 def_sid);
f5c1d5b2 JM	73
1da177e4 LT	74	int security_get_user_sids(u32 callsid, char *username,
	75	u32 *sids, u32 nel);
	76
	77	int security_port_sid(u16 domain, u16 type, u8 protocol, u16 port,
	78	u32 *out_sid);
	79
e8bfdb9d	80	int security_netif_sid(char name, u32 if_sid);
1da177e4 LT	81
	82	int security_node_sid(u16 domain, void *addr, u32 addrlen,
	83	u32 *out_sid);
	84
	85	int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
	86	u16 tclass);
	87
08554d6b VY	88	int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid);
08554d6b VY	89
55fcf09b CP	90	int security_get_classes(char **classes, int nclasses);
55fcf09b CP	91	int security_get_permissions(char class, char *perms, int nperms);
3f12070e EP	92	int security_get_reject_unknown(void);
3f12070e EP	93	int security_get_allow_unknown(void);
55fcf09b	94
1da177e4 LT	95	#define SECURITY_FS_USE_XATTR 1 /* use xattr */
	96	#define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */
	97	#define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */
	98	#define SECURITY_FS_USE_GENFS 4 /* use the genfs support */
	99	#define SECURITY_FS_USE_NONE 5 /* no labeling support */
	100	#define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */
	101
	102	int security_fs_use(const char fstype, unsigned int behavior,
	103	u32 *sid);
	104
	105	int security_genfs_sid(const char fstype, char name, u16 sclass,
	106	u32 *sid);
	107
5778eabd PM	108	#ifdef CONFIG_NETLABEL
	109	int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
	110	u32 base_sid,
	111	u32 *sid);
	112
	113	int security_netlbl_sid_to_secattr(u32 sid,
	114	struct netlbl_lsm_secattr *secattr);
	115	#else
	116	static inline int security_netlbl_secattr_to_sid(
	117	struct netlbl_lsm_secattr *secattr,
	118	u32 base_sid,
	119	u32 *sid)
	120	{
	121	return -EIDRM;
	122	}
	123
	124	static inline int security_netlbl_sid_to_secattr(u32 sid,
	125	struct netlbl_lsm_secattr *secattr)
	126	{
	127	return -ENOENT;
	128	}
	129	#endif /* CONFIG_NETLABEL */
	130
f0ee2e46 JC	131	const char *security_get_initial_sid_context(u32 sid);
f0ee2e46 JC	132
1da177e4 LT	133	#endif /* _SELINUX_SECURITY_H_ */
1da177e4 LT	134