[mirror_ubuntu-bionic-kernel.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

extern int selinux_enabled;
extern int selinux_mls_enabled;

int security_load_policy(void * data, size_t len);

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,
	u32 *msg_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);

#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);

#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
1da177e4	37	extern int selinux_enabled;
1da177e4 LT	38	extern int selinux_mls_enabled;
	39
	40	int security_load_policy(void * data, size_t len);
	41
	42	struct av_decision {
	43	u32 allowed;
	44	u32 decided;
	45	u32 auditallow;
	46	u32 auditdeny;
	47	u32 seqno;
	48	};
	49
	50	int security_compute_av(u32 ssid, u32 tsid,
	51	u16 tclass, u32 requested,
	52	struct av_decision *avd);
	53
	54	int security_transition_sid(u32 ssid, u32 tsid,
	55	u16 tclass, u32 *out_sid);
	56
	57	int security_member_sid(u32 ssid, u32 tsid,
	58	u16 tclass, u32 *out_sid);
	59
	60	int security_change_sid(u32 ssid, u32 tsid,
	61	u16 tclass, u32 *out_sid);
	62
	63	int security_sid_to_context(u32 sid, char **scontext,
	64	u32 *scontext_len);
	65
	66	int security_context_to_sid(char *scontext, u32 scontext_len,
	67	u32 *out_sid);
	68
f5c1d5b2 JM	69	int security_context_to_sid_default(char scontext, u32 scontext_len, u32 out_sid, u32 def_sid);
f5c1d5b2 JM	70
1da177e4 LT	71	int security_get_user_sids(u32 callsid, char *username,
	72	u32 *sids, u32 nel);
	73
	74	int security_port_sid(u16 domain, u16 type, u8 protocol, u16 port,
	75	u32 *out_sid);
	76
	77	int security_netif_sid(char name, u32 if_sid,
	78	u32 *msg_sid);
	79
	80	int security_node_sid(u16 domain, void *addr, u32 addrlen,
	81	u32 *out_sid);
	82
	83	int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
	84	u16 tclass);
	85
08554d6b VY	86	int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid);
08554d6b VY	87
1da177e4 LT	88	#define SECURITY_FS_USE_XATTR 1 /* use xattr */
	89	#define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */
	90	#define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */
	91	#define SECURITY_FS_USE_GENFS 4 /* use the genfs support */
	92	#define SECURITY_FS_USE_NONE 5 /* no labeling support */
	93	#define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */
	94
	95	int security_fs_use(const char fstype, unsigned int behavior,
	96	u32 *sid);
	97
	98	int security_genfs_sid(const char fstype, char name, u16 sclass,
	99	u32 *sid);
	100
	101	#endif /* _SELINUX_SECURITY_H_ */
	102