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
28 #define POLICYDB_VERSION_POLCAP 22
29 #define POLICYDB_VERSION_PERMISSIVE 23
30 #define POLICYDB_VERSION_BOUNDARY 24
32 /* Range of policy versions we understand*/
33 #define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
34 #ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX
35 #define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE
37 #define POLICYDB_VERSION_MAX POLICYDB_VERSION_BOUNDARY
40 #define CONTEXT_MNT 0x01
41 #define FSCONTEXT_MNT 0x02
42 #define ROOTCONTEXT_MNT 0x04
43 #define DEFCONTEXT_MNT 0x08
45 #define CONTEXT_STR "context="
46 #define FSCONTEXT_STR "fscontext="
47 #define ROOTCONTEXT_STR "rootcontext="
48 #define DEFCONTEXT_STR "defcontext="
50 struct netlbl_lsm_secattr
;
52 extern int selinux_enabled
;
53 extern int selinux_mls_enabled
;
55 /* Policy capabilities */
57 POLICYDB_CAPABILITY_NETPEER
,
58 POLICYDB_CAPABILITY_OPENPERM
,
59 __POLICYDB_CAPABILITY_MAX
61 #define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1)
63 extern int selinux_policycap_netpeer
;
64 extern int selinux_policycap_openperm
;
67 * type_datum properties
68 * available at the kernel policy version >= POLICYDB_VERSION_BOUNDARY
70 #define TYPEDATUM_PROPERTY_PRIMARY 0x0001
71 #define TYPEDATUM_PROPERTY_ATTRIBUTE 0x0002
73 /* limitation of boundary depth */
74 #define POLICYDB_BOUNDS_MAXDEPTH 4
76 int security_load_policy(void *data
, size_t len
);
78 int security_policycap_supported(unsigned int req_cap
);
80 #define SEL_VEC_MAX 32
89 int security_permissive_sid(u32 sid
);
91 int security_compute_av(u32 ssid
, u32 tsid
,
92 u16 tclass
, u32 requested
,
93 struct av_decision
*avd
);
95 int security_transition_sid(u32 ssid
, u32 tsid
,
96 u16 tclass
, u32
*out_sid
);
98 int security_member_sid(u32 ssid
, u32 tsid
,
99 u16 tclass
, u32
*out_sid
);
101 int security_change_sid(u32 ssid
, u32 tsid
,
102 u16 tclass
, u32
*out_sid
);
104 int security_sid_to_context(u32 sid
, char **scontext
,
107 int security_sid_to_context_force(u32 sid
, char **scontext
, u32
*scontext_len
);
109 int security_context_to_sid(const char *scontext
, u32 scontext_len
,
112 int security_context_to_sid_default(const char *scontext
, u32 scontext_len
,
113 u32
*out_sid
, u32 def_sid
, gfp_t gfp_flags
);
115 int security_context_to_sid_force(const char *scontext
, u32 scontext_len
,
118 int security_get_user_sids(u32 callsid
, char *username
,
119 u32
**sids
, u32
*nel
);
121 int security_port_sid(u8 protocol
, u16 port
, u32
*out_sid
);
123 int security_netif_sid(char *name
, u32
*if_sid
);
125 int security_node_sid(u16 domain
, void *addr
, u32 addrlen
,
128 int security_validate_transition(u32 oldsid
, u32 newsid
, u32 tasksid
,
131 int security_bounded_transition(u32 oldsid
, u32 newsid
);
133 int security_sid_mls_copy(u32 sid
, u32 mls_sid
, u32
*new_sid
);
135 int security_net_peersid_resolve(u32 nlbl_sid
, u32 nlbl_type
,
139 int security_get_classes(char ***classes
, int *nclasses
);
140 int security_get_permissions(char *class, char ***perms
, int *nperms
);
141 int security_get_reject_unknown(void);
142 int security_get_allow_unknown(void);
144 #define SECURITY_FS_USE_XATTR 1 /* use xattr */
145 #define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */
146 #define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */
147 #define SECURITY_FS_USE_GENFS 4 /* use the genfs support */
148 #define SECURITY_FS_USE_NONE 5 /* no labeling support */
149 #define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */
151 int security_fs_use(const char *fstype
, unsigned int *behavior
,
154 int security_genfs_sid(const char *fstype
, char *name
, u16 sclass
,
157 #ifdef CONFIG_NETLABEL
158 int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr
*secattr
,
161 int security_netlbl_sid_to_secattr(u32 sid
,
162 struct netlbl_lsm_secattr
*secattr
);
164 static inline int security_netlbl_secattr_to_sid(
165 struct netlbl_lsm_secattr
*secattr
,
171 static inline int security_netlbl_sid_to_secattr(u32 sid
,
172 struct netlbl_lsm_secattr
*secattr
)
176 #endif /* CONFIG_NETLABEL */
178 const char *security_get_initial_sid_context(u32 sid
);
180 #endif /* _SELINUX_SECURITY_H_ */