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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Creating audit records for mapped devices.
*
* Copyright (C) 2021 Fraunhofer AISEC. All rights reserved.
*
* Authors: Michael Weiß <michael.weiss@aisec.fraunhofer.de>
*/
#ifndef DM_AUDIT_H
#define DM_AUDIT_H
#include <linux/device-mapper.h>
#include <linux/audit.h>
#ifdef CONFIG_DM_AUDIT
void dm_audit_log_bio(const char *dm_msg_prefix, const char *op,
struct bio *bio, sector_t sector, int result);
/*
* dm_audit_log_ti() is not intended to be used directly in dm modules,
* the wrapper functions below should be called by dm modules instead.
*/
void dm_audit_log_ti(int audit_type, const char *dm_msg_prefix, const char *op,
struct dm_target *ti, int result);
static inline void dm_audit_log_ctr(const char *dm_msg_prefix,
struct dm_target *ti, int result)
{
dm_audit_log_ti(AUDIT_DM_CTRL, dm_msg_prefix, "ctr", ti, result);
}
static inline void dm_audit_log_dtr(const char *dm_msg_prefix,
struct dm_target *ti, int result)
{
dm_audit_log_ti(AUDIT_DM_CTRL, dm_msg_prefix, "dtr", ti, result);
}
static inline void dm_audit_log_target(const char *dm_msg_prefix, const char *op,
struct dm_target *ti, int result)
{
dm_audit_log_ti(AUDIT_DM_EVENT, dm_msg_prefix, op, ti, result);
}
#else
static inline void dm_audit_log_bio(const char *dm_msg_prefix, const char *op,
struct bio *bio, sector_t sector,
int result)
{
}
static inline void dm_audit_log_target(const char *dm_msg_prefix,
const char *op, struct dm_target *ti,
int result)
{
}
static inline void dm_audit_log_ctr(const char *dm_msg_prefix,
struct dm_target *ti, int result)
{
}
static inline void dm_audit_log_dtr(const char *dm_msg_prefix,
struct dm_target *ti, int result)
{
}
#endif
#endif
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