1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Runtime Verification. 4 * 5 * For futher information, see: kernel/trace/rv/rv.c. 6 */ 7 #ifndef _LINUX_RV_H 8 #define _LINUX_RV_H 9 10 #define MAX_DA_NAME_LEN 24 11 12 #ifdef CONFIG_RV 13 /* 14 * Deterministic automaton per-object variables. 15 */ 16 struct da_monitor { 17 bool monitoring; 18 unsigned int curr_state; 19 }; 20 21 /* 22 * Per-task RV monitors count. Nowadays fixed in RV_PER_TASK_MONITORS. 23 * If we find justification for more monitors, we can think about 24 * adding more or developing a dynamic method. So far, none of 25 * these are justified. 26 */ 27 #define RV_PER_TASK_MONITORS 1 28 #define RV_PER_TASK_MONITOR_INIT (RV_PER_TASK_MONITORS) 29 30 /* 31 * Futher monitor types are expected, so make this a union. 32 */ 33 union rv_task_monitor { 34 struct da_monitor da_mon; 35 }; 36 37 #ifdef CONFIG_RV_REACTORS 38 struct rv_reactor { 39 const char *name; 40 const char *description; 41 void (*react)(char *msg); 42 }; 43 #endif 44 45 struct rv_monitor { 46 const char *name; 47 const char *description; 48 bool enabled; 49 int (*enable)(void); 50 void (*disable)(void); 51 void (*reset)(void); 52 #ifdef CONFIG_RV_REACTORS 53 void (*react)(char *msg); 54 #endif 55 }; 56 57 bool rv_monitoring_on(void); 58 int rv_unregister_monitor(struct rv_monitor *monitor); 59 int rv_register_monitor(struct rv_monitor *monitor); 60 int rv_get_task_monitor_slot(void); 61 void rv_put_task_monitor_slot(int slot); 62 63 #ifdef CONFIG_RV_REACTORS 64 bool rv_reacting_on(void); 65 int rv_unregister_reactor(struct rv_reactor *reactor); 66 int rv_register_reactor(struct rv_reactor *reactor); 67 #endif /* CONFIG_RV_REACTORS */ 68 69 #endif /* CONFIG_RV */ 70 #endif /* _LINUX_RV_H */ 71