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1 /* Author: Joshua Brindle <jbrindle@tresys.com>
2  *         Jason Tang     <jtang@tresys.com>
3  *         Ivan Gyurdiev  <ivg2@cornell.edu>
4  *
5  * Copyright (C) 2005 Tresys Technology, LLC
6  * Copyright (C) 2005 Red Hat Inc.
7  *
8  *  This library is free software; you can redistribute it and/or
9  *  modify it under the terms of the GNU Lesser General Public
10  *  License as published by the Free Software Foundation; either
11  *  version 2.1 of the License, or (at your option) any later version.
12  *
13  *  This library is distributed in the hope that it will be useful,
14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  *  Lesser General Public License for more details.
17  *
18  *  You should have received a copy of the GNU Lesser General Public
19  *  License along with this library; if not, write to the Free Software
20  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
21  */
22 
23 #ifndef _SEMANAGE_INTERNAL_HANDLE_H_
24 #define _SEMANAGE_INTERNAL_HANDLE_H_
25 
26 #include <stdint.h>
27 #include <stddef.h>
28 #include "handle_internal.h"
29 #include <sepol/handle.h>
30 #include "modules.h"
31 #include "semanage_conf.h"
32 #include "database.h"
33 #include "direct_api.h"
34 #include "policy.h"
35 
36 struct semanage_handle {
37 	int con_id;		/* Connection ID */
38 
39 	/* Error handling */
40 	int msg_level;
41 	const char *msg_channel;
42 	const char *msg_fname;
43 #ifdef __GNUC__
44 	__attribute__ ((format(printf, 3, 4)))
45 #endif
46 	void (*msg_callback) (void *varg,
47 			      semanage_handle_t * handle, const char *fmt, ...);
48 	void *msg_callback_arg;
49 
50 	/* Direct vs Server specific handle */
51 	union {
52 		struct semanage_direct_handle direct;
53 	} u;
54 
55 	/* Libsepol handle */
56 	sepol_handle_t *sepolh;
57 
58 	semanage_conf_t *conf;
59 
60 	uint16_t priority;
61 	int is_connected;
62 	int is_in_transaction;
63 	int do_reload;		/* whether to reload policy after commit */
64 	int do_rebuild;		/* whether to rebuild policy if there were no changes */
65 	int modules_modified;
66 	int create_store;	/* whether to create the store if it does not exist
67 				 * this will only have an effect on direct connections */
68 	int do_check_contexts;	/* whether to run setfiles check the file contexts file */
69 
70 	/* This timeout is used for transactions and waiting for lock
71 	   -1 means wait indefinetely
72 	   0 means return immediately
73 	   >0 means wait that many seconds */
74 	int timeout;
75 
76 	/* these function pointers will point to the appropriate
77 	 * routine given the connection type.  think of these as
78 	 * simulating polymorphism for non-OO languages. */
79 	struct semanage_policy_table *funcs;
80 
81 	/* Object databases */
82 #define DBASE_COUNT      19
83 
84 /* Local modifications */
85 #define DBASE_LOCAL_USERS_BASE  0
86 #define DBASE_LOCAL_USERS_EXTRA 1
87 #define DBASE_LOCAL_USERS       2
88 #define DBASE_LOCAL_PORTS       3
89 #define DBASE_LOCAL_INTERFACES  4
90 #define DBASE_LOCAL_BOOLEANS    5
91 #define DBASE_LOCAL_FCONTEXTS	6
92 #define DBASE_LOCAL_SEUSERS     7
93 #define DBASE_LOCAL_NODES       8
94 
95 /* Policy + Local modifications */
96 #define DBASE_POLICY_USERS_BASE  9
97 #define DBASE_POLICY_USERS_EXTRA 10
98 #define DBASE_POLICY_USERS       11
99 #define DBASE_POLICY_PORTS       12
100 #define DBASE_POLICY_INTERFACES  13
101 #define DBASE_POLICY_BOOLEANS    14
102 #define DBASE_POLICY_FCONTEXTS   15
103 #define DBASE_POLICY_SEUSERS     16
104 #define DBASE_POLICY_NODES       17
105 
106 /* Active kernel policy */
107 #define DBASE_ACTIVE_BOOLEANS    18
108 	dbase_config_t dbase[DBASE_COUNT];
109 };
110 
111 /* === Local modifications === */
112 static inline
semanage_user_base_dbase_local(semanage_handle_t * handle)113     dbase_config_t * semanage_user_base_dbase_local(semanage_handle_t * handle)
114 {
115 	return &handle->dbase[DBASE_LOCAL_USERS_BASE];
116 }
117 
118 static inline
semanage_user_extra_dbase_local(semanage_handle_t * handle)119     dbase_config_t * semanage_user_extra_dbase_local(semanage_handle_t * handle)
120 {
121 	return &handle->dbase[DBASE_LOCAL_USERS_EXTRA];
122 }
123 
124 static inline
semanage_user_dbase_local(semanage_handle_t * handle)125     dbase_config_t * semanage_user_dbase_local(semanage_handle_t * handle)
126 {
127 	return &handle->dbase[DBASE_LOCAL_USERS];
128 }
129 
130 static inline
semanage_port_dbase_local(semanage_handle_t * handle)131     dbase_config_t * semanage_port_dbase_local(semanage_handle_t * handle)
132 {
133 	return &handle->dbase[DBASE_LOCAL_PORTS];
134 }
135 
136 static inline
semanage_iface_dbase_local(semanage_handle_t * handle)137     dbase_config_t * semanage_iface_dbase_local(semanage_handle_t * handle)
138 {
139 	return &handle->dbase[DBASE_LOCAL_INTERFACES];
140 }
141 
142 static inline
semanage_bool_dbase_local(semanage_handle_t * handle)143     dbase_config_t * semanage_bool_dbase_local(semanage_handle_t * handle)
144 {
145 	return &handle->dbase[DBASE_LOCAL_BOOLEANS];
146 }
147 
148 static inline
semanage_fcontext_dbase_local(semanage_handle_t * handle)149     dbase_config_t * semanage_fcontext_dbase_local(semanage_handle_t * handle)
150 {
151 	return &handle->dbase[DBASE_LOCAL_FCONTEXTS];
152 }
153 
154 static inline
semanage_seuser_dbase_local(semanage_handle_t * handle)155     dbase_config_t * semanage_seuser_dbase_local(semanage_handle_t * handle)
156 {
157 	return &handle->dbase[DBASE_LOCAL_SEUSERS];
158 }
159 
160 static inline
semanage_node_dbase_local(semanage_handle_t * handle)161     dbase_config_t * semanage_node_dbase_local(semanage_handle_t * handle)
162 {
163 	return &handle->dbase[DBASE_LOCAL_NODES];
164 }
165 
166 /* === Policy + Local modifications === */
167 static inline
semanage_user_base_dbase_policy(semanage_handle_t * handle)168     dbase_config_t * semanage_user_base_dbase_policy(semanage_handle_t * handle)
169 {
170 	return &handle->dbase[DBASE_POLICY_USERS_BASE];
171 }
172 
173 static inline
semanage_user_extra_dbase_policy(semanage_handle_t * handle)174     dbase_config_t * semanage_user_extra_dbase_policy(semanage_handle_t *
175 						      handle)
176 {
177 	return &handle->dbase[DBASE_POLICY_USERS_EXTRA];
178 }
179 
180 static inline
semanage_user_dbase_policy(semanage_handle_t * handle)181     dbase_config_t * semanage_user_dbase_policy(semanage_handle_t * handle)
182 {
183 	return &handle->dbase[DBASE_POLICY_USERS];
184 }
185 
186 static inline
semanage_port_dbase_policy(semanage_handle_t * handle)187     dbase_config_t * semanage_port_dbase_policy(semanage_handle_t * handle)
188 {
189 	return &handle->dbase[DBASE_POLICY_PORTS];
190 }
191 
192 static inline
semanage_iface_dbase_policy(semanage_handle_t * handle)193     dbase_config_t * semanage_iface_dbase_policy(semanage_handle_t * handle)
194 {
195 	return &handle->dbase[DBASE_POLICY_INTERFACES];
196 }
197 
198 static inline
semanage_bool_dbase_policy(semanage_handle_t * handle)199     dbase_config_t * semanage_bool_dbase_policy(semanage_handle_t * handle)
200 {
201 	return &handle->dbase[DBASE_POLICY_BOOLEANS];
202 }
203 
204 static inline
semanage_fcontext_dbase_policy(semanage_handle_t * handle)205     dbase_config_t * semanage_fcontext_dbase_policy(semanage_handle_t * handle)
206 {
207 	return &handle->dbase[DBASE_POLICY_FCONTEXTS];
208 }
209 
210 static inline
semanage_seuser_dbase_policy(semanage_handle_t * handle)211     dbase_config_t * semanage_seuser_dbase_policy(semanage_handle_t * handle)
212 {
213 	return &handle->dbase[DBASE_POLICY_SEUSERS];
214 }
215 
216 static inline
semanage_node_dbase_policy(semanage_handle_t * handle)217     dbase_config_t * semanage_node_dbase_policy(semanage_handle_t * handle)
218 {
219 	return &handle->dbase[DBASE_POLICY_NODES];
220 }
221 
222 /* === Active kernel policy === */
223 static inline
semanage_bool_dbase_active(semanage_handle_t * handle)224     dbase_config_t * semanage_bool_dbase_active(semanage_handle_t * handle)
225 {
226 	return &handle->dbase[DBASE_ACTIVE_BOOLEANS];
227 }
228 
229 #endif
230