1 /*- 2 * Copyright (c) 2023-2025 Ruslan Bukin <br@bsdpad.com> 3 * 4 * This work was supported by Innovate UK project 105694, "Digital Security 5 * by Design (DSbD) Technology Platform Prototype". 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/hwt_record.h> 30 31 #ifndef _DEV_HWT_HWT_HOOK_H_ 32 #define _DEV_HWT_HWT_HOOK_H_ 33 34 #define HWT_SWITCH_IN 0 35 #define HWT_SWITCH_OUT 1 36 #define HWT_THREAD_EXIT 2 37 #define HWT_THREAD_CREATE 3 38 #define HWT_THREAD_SET_NAME 4 39 #define HWT_RECORD 5 40 #define HWT_MMAP 6 41 #define HWT_EXEC 7 42 43 #define HWT_CALL_HOOK(td, func, arg) \ 44 do { \ 45 if (hwt_hook != NULL) \ 46 (hwt_hook)((td), (func), (arg)); \ 47 } while (0) 48 49 #define HWT_HOOK_INSTALLED (hwt_hook != NULL) 50 51 extern void (*hwt_hook)(struct thread *td, int func, void *arg); 52 53 void hwt_hook_load(void); 54 void hwt_hook_unload(void); 55 56 #endif /* !_DEV_HWT_HWT_HOOK_H_ */ 57