1/* $NetBSD: t_ptrace_kill_wait.h,v 1.1 2020/05/04 21:55:12 kamil 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 29static void 30ptrace_kill(const char *type) 31{ 32 const int sigval = SIGSTOP; 33 pid_t child, wpid; 34#if defined(TWAIT_HAVE_STATUS) 35 int status; 36#endif 37 38 DPRINTF("Before forking process PID=%d\n", getpid()); 39 SYSCALL_REQUIRE((child = fork()) != -1); 40 if (child == 0) { 41 DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); 42 FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); 43 44 DPRINTF("Before raising %s from child\n", strsignal(sigval)); 45 FORKEE_ASSERT(raise(sigval) == 0); 46 47 /* NOTREACHED */ 48 FORKEE_ASSERTX(0 && 49 "Child should be terminated by a signal from its parent"); 50 } 51 DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); 52 53 DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); 54 TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); 55 56 validate_status_stopped(status, sigval); 57 58 DPRINTF("Before killing the child process with %s\n", type); 59 if (strcmp(type, "ptrace(PT_KILL)") == 0) { 60 SYSCALL_REQUIRE(ptrace(PT_KILL, child, (void*)1, 0) != -1); 61 } else if (strcmp(type, "kill(SIGKILL)") == 0) { 62 kill(child, SIGKILL); 63 } else if (strcmp(type, "killpg(SIGKILL)") == 0) { 64 setpgid(child, 0); 65 killpg(getpgid(child), SIGKILL); 66 } 67 68 DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); 69 TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); 70 71 validate_status_signaled(status, SIGKILL, 0); 72 73 DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); 74 TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); 75} 76 77#define PTRACE_KILL(test, type) \ 78ATF_TC(test); \ 79ATF_TC_HEAD(test, tc) \ 80{ \ 81 atf_tc_set_md_var(tc, "descr", \ 82 "Verify killing the child with " type); \ 83} \ 84 \ 85ATF_TC_BODY(test, tc) \ 86{ \ 87 \ 88 ptrace_kill(type); \ 89} 90 91// PT_CONTINUE with SIGKILL is covered by traceme_sendsignal_simple1 92PTRACE_KILL(kill1, "ptrace(PT_KILL)") 93PTRACE_KILL(kill2, "kill(SIGKILL)") 94PTRACE_KILL(kill3, "killpg(SIGKILL)") 95 96#define ATF_TP_ADD_TCS_PTRACE_WAIT_KILL() \ 97 ATF_TP_ADD_TC(tp, kill1); \ 98 ATF_TP_ADD_TC(tp, kill2); \ 99 ATF_TP_ADD_TC(tp, kill3); 100