LXR linux/drivers/md/dm-audit.h

   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
  17void 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 */
  24void dm_audit_log_ti(int audit_type, const char *dm_msg_prefix, const char *op,
  25                     struct dm_target *ti, int result);
  26
  27static 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
  33static 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
  39static 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
  45static 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}
  50static inline void dm_audit_log_target(const char *dm_msg_prefix,
  51                                       const char *op, struct dm_target *ti,
  52                                       int result)
  53{
  54}
  55static inline void dm_audit_log_ctr(const char *dm_msg_prefix,
  56                                    struct dm_target *ti, int result)
  57{
  58}
  59
  60static 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