1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef _KEYUTILS_H_
30 #define _KEYUTILS_H_
31 
32 #include <linux/keyctl.h>
33 #include <stdint.h>
34 #include <sys/cdefs.h>
35 
36 __BEGIN_DECLS
37 
38 typedef int32_t key_serial_t;
39 
40 key_serial_t add_key(const char* type, const char* description, const void* payload,
41                      size_t payload_length, key_serial_t ring_id);
42 
43 key_serial_t keyctl_get_keyring_ID(key_serial_t id, int create);
44 
45 long keyctl_revoke(key_serial_t id); /* TODO: remove this */
46 
47 long keyctl_search(key_serial_t ring_id, const char* type, const char* description,
48                    key_serial_t dest_ring_id);
49 
50 long keyctl_setperm(key_serial_t id, int permissions);
51 
52 long keyctl_unlink(key_serial_t key, key_serial_t keyring);
53 
54 long keyctl_restrict_keyring(key_serial_t keyring, const char* type, const char* restriction);
55 
56 long keyctl_get_security(key_serial_t key, char* buffer, size_t buflen);
57 
58 __END_DECLS
59 
60 #endif
61