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/* $NetBSD: t_ptrace_kill_wait.h,v 1.1 2020/05/04 21:55:12 kamil Exp $ */
/*-
* Copyright (c) 2016, 2017, 2018, 2019, 2020 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
static void
ptrace_kill(const char *type)
{
const int sigval = SIGSTOP;
pid_t child, wpid;
#if defined(TWAIT_HAVE_STATUS)
int status;
#endif
DPRINTF("Before forking process PID=%d\n", getpid());
SYSCALL_REQUIRE((child = fork()) != -1);
if (child == 0) {
DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid());
FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
DPRINTF("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
/* NOTREACHED */
FORKEE_ASSERTX(0 &&
"Child should be terminated by a signal from its parent");
}
DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child);
DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
validate_status_stopped(status, sigval);
DPRINTF("Before killing the child process with %s\n", type);
if (strcmp(type, "ptrace(PT_KILL)") == 0) {
SYSCALL_REQUIRE(ptrace(PT_KILL, child, (void*)1, 0) != -1);
} else if (strcmp(type, "kill(SIGKILL)") == 0) {
kill(child, SIGKILL);
} else if (strcmp(type, "killpg(SIGKILL)") == 0) {
setpgid(child, 0);
killpg(getpgid(child), SIGKILL);
}
DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
validate_status_signaled(status, SIGKILL, 0);
DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
}
#define PTRACE_KILL(test, type) \
ATF_TC(test); \
ATF_TC_HEAD(test, tc) \
{ \
atf_tc_set_md_var(tc, "descr", \
"Verify killing the child with " type); \
} \
\
ATF_TC_BODY(test, tc) \
{ \
\
ptrace_kill(type); \
}
// PT_CONTINUE with SIGKILL is covered by traceme_sendsignal_simple1
PTRACE_KILL(kill1, "ptrace(PT_KILL)")
PTRACE_KILL(kill2, "kill(SIGKILL)")
PTRACE_KILL(kill3, "killpg(SIGKILL)")
#define ATF_TP_ADD_TCS_PTRACE_WAIT_KILL() \
ATF_TP_ADD_TC(tp, kill1); \
ATF_TP_ADD_TC(tp, kill2); \
ATF_TP_ADD_TC(tp, kill3);
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