Commit | Line | Data |
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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 |
64dbf074 | 29 | #define POLICYDB_VERSION_PERMISSIVE 23 |
d9250dea | 30 | #define POLICYDB_VERSION_BOUNDARY 24 |
1da177e4 LT |
31 | |
32 | /* Range of policy versions we understand*/ | |
33 | #define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE | |
016b9bdb SS |
34 | #ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX |
35 | #define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE | |
36 | #else | |
d9250dea | 37 | #define POLICYDB_VERSION_MAX POLICYDB_VERSION_BOUNDARY |
016b9bdb | 38 | #endif |
1da177e4 | 39 | |
0d90a7ec DQ |
40 | /* Mask for just the mount related flags */ |
41 | #define SE_MNTMASK 0x0f | |
42 | /* Super block security struct flags for mount options */ | |
e0007529 EP |
43 | #define CONTEXT_MNT 0x01 |
44 | #define FSCONTEXT_MNT 0x02 | |
45 | #define ROOTCONTEXT_MNT 0x04 | |
46 | #define DEFCONTEXT_MNT 0x08 | |
0d90a7ec DQ |
47 | /* Non-mount related flags */ |
48 | #define SE_SBINITIALIZED 0x10 | |
49 | #define SE_SBPROC 0x20 | |
11689d47 | 50 | #define SE_SBLABELSUPP 0x40 |
e0007529 | 51 | |
832cbd9a EP |
52 | #define CONTEXT_STR "context=" |
53 | #define FSCONTEXT_STR "fscontext=" | |
54 | #define ROOTCONTEXT_STR "rootcontext=" | |
55 | #define DEFCONTEXT_STR "defcontext=" | |
11689d47 | 56 | #define LABELSUPP_STR "seclabel" |
832cbd9a | 57 | |
5778eabd | 58 | struct netlbl_lsm_secattr; |
bb22f580 | 59 | |
1da177e4 | 60 | extern int selinux_enabled; |
1da177e4 LT |
61 | extern int selinux_mls_enabled; |
62 | ||
3bb56b25 PM |
63 | /* Policy capabilities */ |
64 | enum { | |
65 | POLICYDB_CAPABILITY_NETPEER, | |
b0c636b9 | 66 | POLICYDB_CAPABILITY_OPENPERM, |
3bb56b25 PM |
67 | __POLICYDB_CAPABILITY_MAX |
68 | }; | |
69 | #define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1) | |
70 | ||
71 | extern int selinux_policycap_netpeer; | |
b0c636b9 | 72 | extern int selinux_policycap_openperm; |
3bb56b25 | 73 | |
d9250dea KK |
74 | /* |
75 | * type_datum properties | |
76 | * available at the kernel policy version >= POLICYDB_VERSION_BOUNDARY | |
77 | */ | |
78 | #define TYPEDATUM_PROPERTY_PRIMARY 0x0001 | |
79 | #define TYPEDATUM_PROPERTY_ATTRIBUTE 0x0002 | |
80 | ||
81 | /* limitation of boundary depth */ | |
82 | #define POLICYDB_BOUNDS_MAXDEPTH 4 | |
83 | ||
b19d8eae | 84 | int security_load_policy(void *data, size_t len); |
1da177e4 | 85 | |
3bb56b25 PM |
86 | int security_policycap_supported(unsigned int req_cap); |
87 | ||
e47c8fc5 | 88 | #define SEL_VEC_MAX 32 |
1da177e4 LT |
89 | struct av_decision { |
90 | u32 allowed; | |
1da177e4 LT |
91 | u32 auditallow; |
92 | u32 auditdeny; | |
93 | u32 seqno; | |
8a6f83af | 94 | u32 flags; |
1da177e4 LT |
95 | }; |
96 | ||
8a6f83af KK |
97 | /* definitions of av_decision.flags */ |
98 | #define AVD_FLAGS_PERMISSIVE 0x0001 | |
64dbf074 | 99 | |
1da177e4 LT |
100 | int security_compute_av(u32 ssid, u32 tsid, |
101 | u16 tclass, u32 requested, | |
102 | struct av_decision *avd); | |
103 | ||
104 | int security_transition_sid(u32 ssid, u32 tsid, | |
105 | u16 tclass, u32 *out_sid); | |
106 | ||
107 | int security_member_sid(u32 ssid, u32 tsid, | |
108 | u16 tclass, u32 *out_sid); | |
109 | ||
110 | int security_change_sid(u32 ssid, u32 tsid, | |
111 | u16 tclass, u32 *out_sid); | |
112 | ||
113 | int security_sid_to_context(u32 sid, char **scontext, | |
114 | u32 *scontext_len); | |
115 | ||
12b29f34 SS |
116 | int security_sid_to_context_force(u32 sid, char **scontext, u32 *scontext_len); |
117 | ||
8f0cfa52 | 118 | int security_context_to_sid(const char *scontext, u32 scontext_len, |
1da177e4 LT |
119 | u32 *out_sid); |
120 | ||
7bf570dc | 121 | int security_context_to_sid_default(const char *scontext, u32 scontext_len, |
869ab514 | 122 | u32 *out_sid, u32 def_sid, gfp_t gfp_flags); |
f5c1d5b2 | 123 | |
12b29f34 SS |
124 | int security_context_to_sid_force(const char *scontext, u32 scontext_len, |
125 | u32 *sid); | |
126 | ||
1da177e4 LT |
127 | int security_get_user_sids(u32 callsid, char *username, |
128 | u32 **sids, u32 *nel); | |
129 | ||
3e112172 | 130 | int security_port_sid(u8 protocol, u16 port, u32 *out_sid); |
1da177e4 | 131 | |
e8bfdb9d | 132 | int security_netif_sid(char *name, u32 *if_sid); |
1da177e4 LT |
133 | |
134 | int security_node_sid(u16 domain, void *addr, u32 addrlen, | |
135 | u32 *out_sid); | |
136 | ||
137 | int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid, | |
b19d8eae | 138 | u16 tclass); |
1da177e4 | 139 | |
d9250dea KK |
140 | int security_bounded_transition(u32 oldsid, u32 newsid); |
141 | ||
08554d6b VY |
142 | int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid); |
143 | ||
220deb96 PM |
144 | int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type, |
145 | u32 xfrm_sid, | |
146 | u32 *peer_sid); | |
147 | ||
55fcf09b CP |
148 | int security_get_classes(char ***classes, int *nclasses); |
149 | int security_get_permissions(char *class, char ***perms, int *nperms); | |
3f12070e EP |
150 | int security_get_reject_unknown(void); |
151 | int security_get_allow_unknown(void); | |
55fcf09b | 152 | |
1da177e4 LT |
153 | #define SECURITY_FS_USE_XATTR 1 /* use xattr */ |
154 | #define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */ | |
155 | #define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */ | |
156 | #define SECURITY_FS_USE_GENFS 4 /* use the genfs support */ | |
157 | #define SECURITY_FS_USE_NONE 5 /* no labeling support */ | |
158 | #define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */ | |
159 | ||
160 | int security_fs_use(const char *fstype, unsigned int *behavior, | |
089be43e | 161 | u32 *sid); |
1da177e4 LT |
162 | |
163 | int security_genfs_sid(const char *fstype, char *name, u16 sclass, | |
164 | u32 *sid); | |
165 | ||
5778eabd PM |
166 | #ifdef CONFIG_NETLABEL |
167 | int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr, | |
5778eabd PM |
168 | u32 *sid); |
169 | ||
170 | int security_netlbl_sid_to_secattr(u32 sid, | |
171 | struct netlbl_lsm_secattr *secattr); | |
172 | #else | |
173 | static inline int security_netlbl_secattr_to_sid( | |
174 | struct netlbl_lsm_secattr *secattr, | |
5778eabd PM |
175 | u32 *sid) |
176 | { | |
177 | return -EIDRM; | |
178 | } | |
179 | ||
180 | static inline int security_netlbl_sid_to_secattr(u32 sid, | |
181 | struct netlbl_lsm_secattr *secattr) | |
182 | { | |
183 | return -ENOENT; | |
184 | } | |
185 | #endif /* CONFIG_NETLABEL */ | |
186 | ||
f0ee2e46 JC |
187 | const char *security_get_initial_sid_context(u32 sid); |
188 | ||
1da177e4 LT |
189 | #endif /* _SELINUX_SECURITY_H_ */ |
190 |