1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * Creating audit records for mapped devices. |
4 | * |
5 | * Copyright (C) 2021 Fraunhofer AISEC. All rights reserved. |
6 | * |
7 | * Authors: Michael Weiß <michael.weiss@aisec.fraunhofer.de> |
8 | */ |
9 | |
10 | #ifndef DM_AUDIT_H |
11 | #define DM_AUDIT_H |
12 | |
13 | #include <linux/device-mapper.h> |
14 | #include <linux/audit.h> |
15 | |
16 | #ifdef CONFIG_DM_AUDIT |
17 | void dm_audit_log_bio(const char *dm_msg_prefix, const char *op, |
18 | struct bio *bio, sector_t sector, int result); |
19 | |
20 | /* |
21 | * dm_audit_log_ti() is not intended to be used directly in dm modules, |
22 | * the wrapper functions below should be called by dm modules instead. |
23 | */ |
24 | void dm_audit_log_ti(int audit_type, const char *dm_msg_prefix, const char *op, |
25 | struct dm_target *ti, int result); |
26 | |
27 | static inline void dm_audit_log_ctr(const char *dm_msg_prefix, |
28 | struct dm_target *ti, int result) |
29 | { |
30 | dm_audit_log_ti(AUDIT_DM_CTRL, dm_msg_prefix, op: "ctr" , ti, result); |
31 | } |
32 | |
33 | static inline void dm_audit_log_dtr(const char *dm_msg_prefix, |
34 | struct dm_target *ti, int result) |
35 | { |
36 | dm_audit_log_ti(AUDIT_DM_CTRL, dm_msg_prefix, op: "dtr" , ti, result); |
37 | } |
38 | |
39 | static inline void dm_audit_log_target(const char *dm_msg_prefix, const char *op, |
40 | struct dm_target *ti, int result) |
41 | { |
42 | dm_audit_log_ti(AUDIT_DM_EVENT, dm_msg_prefix, op, ti, result); |
43 | } |
44 | #else |
45 | static inline void dm_audit_log_bio(const char *dm_msg_prefix, const char *op, |
46 | struct bio *bio, sector_t sector, |
47 | int result) |
48 | { |
49 | } |
50 | static inline void dm_audit_log_target(const char *dm_msg_prefix, |
51 | const char *op, struct dm_target *ti, |
52 | int result) |
53 | { |
54 | } |
55 | static inline void dm_audit_log_ctr(const char *dm_msg_prefix, |
56 | struct dm_target *ti, int result) |
57 | { |
58 | } |
59 | |
60 | static inline void dm_audit_log_dtr(const char *dm_msg_prefix, |
61 | struct dm_target *ti, int result) |
62 | { |
63 | } |
64 | #endif |
65 | |
66 | #endif |
67 | |