[deliverable/linux.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

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);

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
5778eabd	38	struct netlbl_lsm_secattr;
bb22f580	39
1da177e4	40	extern int selinux_enabled;
1da177e4 LT	41	extern int selinux_mls_enabled;
1da177e4 LT	42
3bb56b25 PM	43	/* Policy capabilities */
	44	enum {
	45	POLICYDB_CAPABILITY_NETPEER,
	46	__POLICYDB_CAPABILITY_MAX
	47	};
	48	#define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1)
	49
	50	extern int selinux_policycap_netpeer;
	51
1da177e4 LT	52	int security_load_policy(void * data, size_t len);
1da177e4 LT	53
3bb56b25 PM	54	int security_policycap_supported(unsigned int req_cap);
3bb56b25 PM	55
e47c8fc5	56	#define SEL_VEC_MAX 32
1da177e4 LT	57	struct av_decision {
	58	u32 allowed;
	59	u32 decided;
	60	u32 auditallow;
	61	u32 auditdeny;
	62	u32 seqno;
	63	};
	64
	65	int security_compute_av(u32 ssid, u32 tsid,
	66	u16 tclass, u32 requested,
	67	struct av_decision *avd);
	68
	69	int security_transition_sid(u32 ssid, u32 tsid,
	70	u16 tclass, u32 *out_sid);
	71
	72	int security_member_sid(u32 ssid, u32 tsid,
	73	u16 tclass, u32 *out_sid);
	74
	75	int security_change_sid(u32 ssid, u32 tsid,
	76	u16 tclass, u32 *out_sid);
	77
	78	int security_sid_to_context(u32 sid, char **scontext,
	79	u32 *scontext_len);
	80
	81	int security_context_to_sid(char *scontext, u32 scontext_len,
	82	u32 *out_sid);
	83
f5c1d5b2 JM	84	int security_context_to_sid_default(char scontext, u32 scontext_len, u32 out_sid, u32 def_sid);
f5c1d5b2 JM	85
1da177e4 LT	86	int security_get_user_sids(u32 callsid, char *username,
	87	u32 *sids, u32 nel);
	88
	89	int security_port_sid(u16 domain, u16 type, u8 protocol, u16 port,
	90	u32 *out_sid);
	91
e8bfdb9d	92	int security_netif_sid(char name, u32 if_sid);
1da177e4 LT	93
	94	int security_node_sid(u16 domain, void *addr, u32 addrlen,
	95	u32 *out_sid);
	96
	97	int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
	98	u16 tclass);
	99
08554d6b VY	100	int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid);
08554d6b VY	101
220deb96 PM	102	int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type,
	103	u32 xfrm_sid,
	104	u32 *peer_sid);
	105
55fcf09b CP	106	int security_get_classes(char **classes, int nclasses);
55fcf09b CP	107	int security_get_permissions(char class, char *perms, int nperms);
3f12070e EP	108	int security_get_reject_unknown(void);
3f12070e EP	109	int security_get_allow_unknown(void);
55fcf09b	110
1da177e4 LT	111	#define SECURITY_FS_USE_XATTR 1 /* use xattr */
	112	#define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */
	113	#define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */
	114	#define SECURITY_FS_USE_GENFS 4 /* use the genfs support */
	115	#define SECURITY_FS_USE_NONE 5 /* no labeling support */
	116	#define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */
	117
	118	int security_fs_use(const char fstype, unsigned int behavior,
	119	u32 *sid);
	120
	121	int security_genfs_sid(const char fstype, char name, u16 sclass,
	122	u32 *sid);
	123
5778eabd PM	124	#ifdef CONFIG_NETLABEL
5778eabd PM	125	int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
5778eabd PM	126	u32 *sid);
	127
	128	int security_netlbl_sid_to_secattr(u32 sid,
	129	struct netlbl_lsm_secattr *secattr);
	130	#else
	131	static inline int security_netlbl_secattr_to_sid(
	132	struct netlbl_lsm_secattr *secattr,
5778eabd PM	133	u32 *sid)
	134	{
	135	return -EIDRM;
	136	}
	137
	138	static inline int security_netlbl_sid_to_secattr(u32 sid,
	139	struct netlbl_lsm_secattr *secattr)
	140	{
	141	return -ENOENT;
	142	}
	143	#endif /* CONFIG_NETLABEL */
	144
f0ee2e46 JC	145	const char *security_get_initial_sid_context(u32 sid);
f0ee2e46 JC	146
1da177e4 LT	147	#endif /* _SELINUX_SECURITY_H_ */
1da177e4 LT	148