/* SPDX-License-Identifier: GPL-2.0 */
/*
* Runtime Verification.
*
* For futher information, see: kernel/trace/rv/rv.c.
*/
#ifndef _LINUX_RV_H
#define _LINUX_RV_H
#define MAX_DA_NAME_LEN 24
#ifdef CONFIG_RV
/*
* Deterministic automaton per-object variables.
*/
struct da_monitor {
bool monitoring;
unsigned int curr_state;
};
/*
* Per-task RV monitors count. Nowadays fixed in RV_PER_TASK_MONITORS.
* If we find justification for more monitors, we can think about
* adding more or developing a dynamic method. So far, none of
* these are justified.
*/
#define RV_PER_TASK_MONITORS 1
#define RV_PER_TASK_MONITOR_INIT (RV_PER_TASK_MONITORS)
/*
* Futher monitor types are expected, so make this a union.
*/
union rv_task_monitor {
struct da_monitor da_mon;
};
#ifdef CONFIG_RV_REACTORS
struct rv_reactor {
const char *name;
const char *description;
void (*react)(char *msg);
};
#endif
struct rv_monitor {
const char *name;
const char *description;
bool enabled;
int (*enable)(void);
void (*disable)(void);
void (*reset)(void);
#ifdef CONFIG_RV_REACTORS
void (*react)(char *msg);
#endif
};
bool rv_monitoring_on(void);
int rv_unregister_monitor(struct rv_monitor *monitor);
int rv_register_monitor(struct rv_monitor *monitor);
int rv_get_task_monitor_slot(void);
void rv_put_task_monitor_slot(int slot);
#ifdef CONFIG_RV_REACTORS
bool rv_reacting_on(void);
int rv_unregister_reactor(struct rv_reactor *reactor);
int rv_register_reactor(struct rv_reactor *reactor);
#endif /* CONFIG_RV_REACTORS */
#endif /* CONFIG_RV */
#endif /* _LINUX_RV_H */