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8#ifndef _SELINUX_SECURITY_H_
9#define _SELINUX_SECURITY_H_
10
11#include <linux/compiler.h>
12#include <linux/dcache.h>
13#include <linux/magic.h>
14#include <linux/types.h>
15#include "flask.h"
16
17#define SECSID_NULL 0x00000000
18#define SECSID_WILD 0xffffffff
19#define SECCLASS_NULL 0x0000
20
21
22#define POLICYDB_VERSION_BASE 15
23#define POLICYDB_VERSION_BOOL 16
24#define POLICYDB_VERSION_IPV6 17
25#define POLICYDB_VERSION_NLCLASS 18
26#define POLICYDB_VERSION_VALIDATETRANS 19
27#define POLICYDB_VERSION_MLS 19
28#define POLICYDB_VERSION_AVTAB 20
29#define POLICYDB_VERSION_RANGETRANS 21
30#define POLICYDB_VERSION_POLCAP 22
31#define POLICYDB_VERSION_PERMISSIVE 23
32#define POLICYDB_VERSION_BOUNDARY 24
33#define POLICYDB_VERSION_FILENAME_TRANS 25
34#define POLICYDB_VERSION_ROLETRANS 26
35#define POLICYDB_VERSION_NEW_OBJECT_DEFAULTS 27
36#define POLICYDB_VERSION_DEFAULT_TYPE 28
37#define POLICYDB_VERSION_CONSTRAINT_NAMES 29
38#define POLICYDB_VERSION_XPERMS_IOCTL 30
39#define POLICYDB_VERSION_INFINIBAND 31
40
41
42#define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
43#define POLICYDB_VERSION_MAX POLICYDB_VERSION_INFINIBAND
44
45
46#define SE_MNTMASK 0x0f
47
48
49#define CONTEXT_MNT 0x01
50#define FSCONTEXT_MNT 0x02
51#define ROOTCONTEXT_MNT 0x04
52#define DEFCONTEXT_MNT 0x08
53#define SBLABEL_MNT 0x10
54
55#define SE_SBINITIALIZED 0x0100
56#define SE_SBPROC 0x0200
57#define SE_SBGENFS 0x0400
58
59#define CONTEXT_STR "context="
60#define FSCONTEXT_STR "fscontext="
61#define ROOTCONTEXT_STR "rootcontext="
62#define DEFCONTEXT_STR "defcontext="
63#define LABELSUPP_STR "seclabel"
64
65struct netlbl_lsm_secattr;
66
67extern int selinux_enabled;
68
69
70enum {
71 POLICYDB_CAPABILITY_NETPEER,
72 POLICYDB_CAPABILITY_OPENPERM,
73 POLICYDB_CAPABILITY_EXTSOCKCLASS,
74 POLICYDB_CAPABILITY_ALWAYSNETWORK,
75 POLICYDB_CAPABILITY_CGROUPSECLABEL,
76 __POLICYDB_CAPABILITY_MAX
77};
78#define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1)
79
80extern char *selinux_policycap_names[__POLICYDB_CAPABILITY_MAX];
81
82extern int selinux_policycap_netpeer;
83extern int selinux_policycap_openperm;
84extern int selinux_policycap_extsockclass;
85extern int selinux_policycap_alwaysnetwork;
86extern int selinux_policycap_cgroupseclabel;
87
88
89
90
91
92#define TYPEDATUM_PROPERTY_PRIMARY 0x0001
93#define TYPEDATUM_PROPERTY_ATTRIBUTE 0x0002
94
95
96#define POLICYDB_BOUNDS_MAXDEPTH 4
97
98int security_mls_enabled(void);
99
100int security_load_policy(void *data, size_t len);
101int security_read_policy(void **data, size_t *len);
102size_t security_policydb_len(void);
103
104int security_policycap_supported(unsigned int req_cap);
105
106#define SEL_VEC_MAX 32
107struct av_decision {
108 u32 allowed;
109 u32 auditallow;
110 u32 auditdeny;
111 u32 seqno;
112 u32 flags;
113};
114
115#define XPERMS_ALLOWED 1
116#define XPERMS_AUDITALLOW 2
117#define XPERMS_DONTAUDIT 4
118
119#define security_xperm_set(perms, x) (perms[x >> 5] |= 1 << (x & 0x1f))
120#define security_xperm_test(perms, x) (1 & (perms[x >> 5] >> (x & 0x1f)))
121struct extended_perms_data {
122 u32 p[8];
123};
124
125struct extended_perms_decision {
126 u8 used;
127 u8 driver;
128 struct extended_perms_data *allowed;
129 struct extended_perms_data *auditallow;
130 struct extended_perms_data *dontaudit;
131};
132
133struct extended_perms {
134 u16 len;
135 struct extended_perms_data drivers;
136};
137
138
139#define AVD_FLAGS_PERMISSIVE 0x0001
140
141void security_compute_av(u32 ssid, u32 tsid,
142 u16 tclass, struct av_decision *avd,
143 struct extended_perms *xperms);
144
145void security_compute_xperms_decision(u32 ssid, u32 tsid, u16 tclass,
146 u8 driver, struct extended_perms_decision *xpermd);
147
148void security_compute_av_user(u32 ssid, u32 tsid,
149 u16 tclass, struct av_decision *avd);
150
151int security_transition_sid(u32 ssid, u32 tsid, u16 tclass,
152 const struct qstr *qstr, u32 *out_sid);
153
154int security_transition_sid_user(u32 ssid, u32 tsid, u16 tclass,
155 const char *objname, u32 *out_sid);
156
157int security_member_sid(u32 ssid, u32 tsid,
158 u16 tclass, u32 *out_sid);
159
160int security_change_sid(u32 ssid, u32 tsid,
161 u16 tclass, u32 *out_sid);
162
163int security_sid_to_context(u32 sid, char **scontext,
164 u32 *scontext_len);
165
166int security_sid_to_context_force(u32 sid, char **scontext, u32 *scontext_len);
167
168int security_context_to_sid(const char *scontext, u32 scontext_len,
169 u32 *out_sid, gfp_t gfp);
170
171int security_context_str_to_sid(const char *scontext, u32 *out_sid, gfp_t gfp);
172
173int security_context_to_sid_default(const char *scontext, u32 scontext_len,
174 u32 *out_sid, u32 def_sid, gfp_t gfp_flags);
175
176int security_context_to_sid_force(const char *scontext, u32 scontext_len,
177 u32 *sid);
178
179int security_get_user_sids(u32 callsid, char *username,
180 u32 **sids, u32 *nel);
181
182int security_port_sid(u8 protocol, u16 port, u32 *out_sid);
183
184int security_ib_pkey_sid(u64 subnet_prefix, u16 pkey_num, u32 *out_sid);
185
186int security_ib_endport_sid(const char *dev_name, u8 port_num, u32 *out_sid);
187
188int security_netif_sid(char *name, u32 *if_sid);
189
190int security_node_sid(u16 domain, void *addr, u32 addrlen,
191 u32 *out_sid);
192
193int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
194 u16 tclass);
195
196int security_validate_transition_user(u32 oldsid, u32 newsid, u32 tasksid,
197 u16 tclass);
198
199int security_bounded_transition(u32 oldsid, u32 newsid);
200
201int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid);
202
203int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type,
204 u32 xfrm_sid,
205 u32 *peer_sid);
206
207int security_get_classes(char ***classes, int *nclasses);
208int security_get_permissions(char *class, char ***perms, int *nperms);
209int security_get_reject_unknown(void);
210int security_get_allow_unknown(void);
211
212#define SECURITY_FS_USE_XATTR 1
213#define SECURITY_FS_USE_TRANS 2
214#define SECURITY_FS_USE_TASK 3
215#define SECURITY_FS_USE_GENFS 4
216#define SECURITY_FS_USE_NONE 5
217#define SECURITY_FS_USE_MNTPOINT 6
218#define SECURITY_FS_USE_NATIVE 7
219#define SECURITY_FS_USE_MAX 7
220
221int security_fs_use(struct super_block *sb);
222
223int security_genfs_sid(const char *fstype, char *name, u16 sclass,
224 u32 *sid);
225
226#ifdef CONFIG_NETLABEL
227int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
228 u32 *sid);
229
230int security_netlbl_sid_to_secattr(u32 sid,
231 struct netlbl_lsm_secattr *secattr);
232#else
233static inline int security_netlbl_secattr_to_sid(
234 struct netlbl_lsm_secattr *secattr,
235 u32 *sid)
236{
237 return -EIDRM;
238}
239
240static inline int security_netlbl_sid_to_secattr(u32 sid,
241 struct netlbl_lsm_secattr *secattr)
242{
243 return -ENOENT;
244}
245#endif
246
247const char *security_get_initial_sid_context(u32 sid);
248
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251
252extern struct page *selinux_kernel_status_page(void);
253
254#define SELINUX_KERNEL_STATUS_VERSION 1
255struct selinux_kernel_status {
256 u32 version;
257 u32 sequence;
258 u32 enforcing;
259 u32 policyload;
260 u32 deny_unknown;
261
262
263
264} __packed;
265
266extern void selinux_status_update_setenforce(int enforcing);
267extern void selinux_status_update_policyload(int seqno);
268extern void selinux_complete_init(void);
269extern int selinux_disable(void);
270extern void exit_sel_fs(void);
271extern struct path selinux_null;
272extern struct vfsmount *selinuxfs_mount;
273extern void selnl_notify_setenforce(int val);
274extern void selnl_notify_policyload(u32 seqno);
275extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm);
276
277#endif
278
279
