t_ptrace_eventmask_wait.h revision 1.2
1 /* $NetBSD: t_ptrace_eventmask_wait.h,v 1.2 2025/05/02 02:24:32 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2016, 2017, 2018, 2019, 2020 The NetBSD Foundation, Inc. 5 * All rights reserved. 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 static void 30 eventmask_preserved(int event) 31 { 32 const int exitval = 5; 33 const int sigval = SIGSTOP; 34 pid_t child, wpid; 35 #if defined(TWAIT_HAVE_STATUS) 36 int status; 37 #endif 38 ptrace_event_t set_event, get_event; 39 const int len = sizeof(ptrace_event_t); 40 41 DPRINTF("Before forking process PID=%d\n", getpid()); 42 SYSCALL_REQUIRE((child = fork()) != -1); 43 if (child == 0) { 44 DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); 45 FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); 46 47 DPRINTF("Before raising %s from child\n", strsignal(sigval)); 48 FORKEE_ASSERT(raise(sigval) == 0); 49 50 DPRINTF("Before exiting of the child process\n"); 51 _exit(exitval); 52 } 53 DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); 54 55 DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); 56 TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); 57 58 validate_status_stopped(status, sigval); 59 60 set_event.pe_set_event = event; 61 SYSCALL_REQUIRE( 62 ptrace(PT_SET_EVENT_MASK, child, &set_event, len) != -1); 63 SYSCALL_REQUIRE( 64 ptrace(PT_GET_EVENT_MASK, child, &get_event, len) != -1); 65 DPRINTF("set_event=%#x get_event=%#x\n", set_event.pe_set_event, 66 get_event.pe_set_event); 67 ATF_REQUIRE(memcmp(&set_event, &get_event, len) == 0); 68 69 DPRINTF("Before resuming the child process where it left off and " 70 "without signal to be sent\n"); 71 SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); 72 73 DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); 74 TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); 75 76 validate_status_exited(status, exitval); 77 78 DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); 79 TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); 80 } 81 82 #define EVENTMASK_PRESERVED(test, event) \ 83 ATF_TC(test); \ 84 ATF_TC_HEAD(test, tc) \ 85 { \ 86 atf_tc_set_md_var(tc, "descr", \ 87 "Verify that eventmask " #event " is preserved"); \ 88 } \ 89 \ 90 ATF_TC_BODY(test, tc) \ 91 { \ 92 \ 93 eventmask_preserved(event); \ 94 } 95 96 EVENTMASK_PRESERVED(eventmask_preserved_empty, 0) 97 EVENTMASK_PRESERVED(eventmask_preserved_fork, PTRACE_FORK) 98 EVENTMASK_PRESERVED(eventmask_preserved_vfork, PTRACE_VFORK) 99 EVENTMASK_PRESERVED(eventmask_preserved_vfork_done, PTRACE_VFORK_DONE) 100 EVENTMASK_PRESERVED(eventmask_preserved_lwp_create, PTRACE_LWP_CREATE) 101 EVENTMASK_PRESERVED(eventmask_preserved_lwp_exit, PTRACE_LWP_EXIT) 102 EVENTMASK_PRESERVED(eventmask_preserved_posix_spawn, PTRACE_POSIX_SPAWN) 103 104 #define ATF_TP_ADD_TCS_PTRACE_WAIT_EVENTMASK() \ 105 ATF_TP_ADD_TC(tp, eventmask_preserved_empty); \ 106 ATF_TP_ADD_TC(tp, eventmask_preserved_fork); \ 107 ATF_TP_ADD_TC(tp, eventmask_preserved_vfork); \ 108 ATF_TP_ADD_TC(tp, eventmask_preserved_vfork_done); \ 109 ATF_TP_ADD_TC(tp, eventmask_preserved_lwp_create); \ 110 ATF_TP_ADD_TC(tp, eventmask_preserved_lwp_exit); \ 111 ATF_TP_ADD_TC(tp, eventmask_preserved_posix_spawn); 112
Indexes created Thu Oct 02 14:10:14 GMT 2025