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, "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, "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