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
25 /* Range of policy versions we understand*/
26 #define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
27 #define POLICYDB_VERSION_MAX POLICYDB_VERSION_NLCLASS
28
29 #ifdef CONFIG_SECURITY_SELINUX_BOOTPARAM
30 extern int selinux_enabled;
31 #else
32 #define selinux_enabled 1
33 #endif
34
35 #ifdef CONFIG_SECURITY_SELINUX_MLS
36 #define selinux_mls_enabled 1
37 #else
38 #define selinux_mls_enabled 0
39 #endif
40
41 int security_load_policy(void * data, size_t len);
42
43 struct av_decision {
44 u32 allowed;
45 u32 decided;
46 u32 auditallow;
47 u32 auditdeny;
48 u32 seqno;
49 };
50
51 int security_compute_av(u32 ssid, u32 tsid,
52 u16 tclass, u32 requested,
53 struct av_decision *avd);
54
55 int security_transition_sid(u32 ssid, u32 tsid,
56 u16 tclass, u32 *out_sid);
57
58 int security_member_sid(u32 ssid, u32 tsid,
59 u16 tclass, u32 *out_sid);
60
61 int security_change_sid(u32 ssid, u32 tsid,
62 u16 tclass, u32 *out_sid);
63
64 int security_sid_to_context(u32 sid, char **scontext,
65 u32 *scontext_len);
66
67 int security_context_to_sid(char *scontext, u32 scontext_len,
68 u32 *out_sid);
69
70 int security_get_user_sids(u32 callsid, char *username,
71 u32 **sids, u32 *nel);
72
73 int security_port_sid(u16 domain, u16 type, u8 protocol, u16 port,
74 u32 *out_sid);
75
76 int security_netif_sid(char *name, u32 *if_sid,
77 u32 *msg_sid);
78
79 int security_node_sid(u16 domain, void *addr, u32 addrlen,
80 u32 *out_sid);
81
82 #define SECURITY_FS_USE_XATTR 1 /* use xattr */
83 #define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */
84 #define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */
85 #define SECURITY_FS_USE_GENFS 4 /* use the genfs support */
86 #define SECURITY_FS_USE_NONE 5 /* no labeling support */
87 #define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */
88
89 int security_fs_use(const char *fstype, unsigned int *behavior,
90 u32 *sid);
91
92 int security_genfs_sid(const char *fstype, char *name, u16 sclass,
93 u32 *sid);
94
95 #endif /* _SELINUX_SECURITY_H_ */
96
97
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