2 * Security server interface.
4 * Author : Stephen Smalley, <sds@epoch.ncsc.mil>
8 #ifndef _SELINUX_SECURITY_H_
9 #define _SELINUX_SECURITY_H_
13 #define SECSID_NULL 0x00000000 /* unspecified SID */
14 #define SECSID_WILD 0xffffffff /* wildcard SID */
15 #define SECCLASS_NULL 0x0000 /* no class */
17 #define SELINUX_MAGIC 0xf97cff8c
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
26 #define POLICYDB_VERSION_AVTAB 20
27 #define POLICYDB_VERSION_RANGETRANS 21
29 /* Range of policy versions we understand*/
30 #define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
31 #ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX
32 #define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE
34 #define POLICYDB_VERSION_MAX POLICYDB_VERSION_RANGETRANS
39 extern int selinux_enabled;
40 extern int selinux_mls_enabled;
42 int security_load_policy(void * data, size_t len);
52 int security_compute_av(u32 ssid, u32 tsid,
53 u16 tclass, u32 requested,
54 struct av_decision *avd);
56 int security_transition_sid(u32 ssid, u32 tsid,
57 u16 tclass, u32 *out_sid);
59 int security_member_sid(u32 ssid, u32 tsid,
60 u16 tclass, u32 *out_sid);
62 int security_change_sid(u32 ssid, u32 tsid,
63 u16 tclass, u32 *out_sid);
65 int security_sid_to_context(u32 sid, char **scontext,
68 int security_context_to_sid(char *scontext, u32 scontext_len,
71 int security_context_to_sid_default(char *scontext, u32 scontext_len, u32 *out_sid, u32 def_sid);
73 int security_get_user_sids(u32 callsid, char *username,
74 u32 **sids, u32 *nel);
76 int security_port_sid(u16 domain, u16 type, u8 protocol, u16 port,
79 int security_netif_sid(char *name, u32 *if_sid,
82 int security_node_sid(u16 domain, void *addr, u32 addrlen,
85 void security_skb_extlbl_sid(struct sk_buff *skb, u32 base_sid, u32 *sid);
87 int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
90 int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid);
92 #define SECURITY_FS_USE_XATTR 1 /* use xattr */
93 #define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */
94 #define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */
95 #define SECURITY_FS_USE_GENFS 4 /* use the genfs support */
96 #define SECURITY_FS_USE_NONE 5 /* no labeling support */
97 #define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */
99 int security_fs_use(const char *fstype, unsigned int *behavior,
102 int security_genfs_sid(const char *fstype, char *name, u16 sclass,
105 #endif /* _SELINUX_SECURITY_H_ */