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kqueue tests: Add a regression test

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Based on the test case submitted by Andreas Bock for PR 275286.

PR:		275286
MFC after:	2 weeks
This commit is contained in:
Mark Johnston 2023-11-24 10:28:13 -05:00
parent 9231c42127
commit f546326595
2 changed files with 91 additions and 2 deletions
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4
tests/sys/kqueue/Makefile
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@ -1,10 +1,10 @@
TESTSRC= ${SRCTOP}/contrib/netbsd-tests/kernel/kqueue
TESTSDIR= ${TESTSBASE}/sys/kqueue
BINDIR= ${TESTSDIR}
ATF_TESTS_C+= kqueue_peek_signal
ATF_TESTS_C+= kqueue_fork \
kqueue_peek_signal
NETBSD_ATF_TESTS_C= proc1_test
# XXX: fails `ke.fflags & NOTE_TRACKERR` invariant

89
tests/sys/kqueue/kqueue_fork.c Normal file
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@ -0,0 +1,89 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2023 Andreas Bock <andreas.bock@virtual-arts-software.de>
* Copyright (c) 2023 Mark Johnston <markj@FreeBSD.org>
*
* 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 AUTHOR 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 AUTHOR 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.
*/
#include <sys/event.h>
#include <sys/wait.h>
#include <err.h>
#include <signal.h>
#include <unistd.h>
#include <atf-c.h>
/*
* A regression test for bugzilla 275286.
*/
ATF_TC_WITHOUT_HEAD(shared_table_filt_sig);
ATF_TC_BODY(shared_table_filt_sig, tc)
{
struct sigaction sa;
pid_t pid;
int error, status;
sa.sa_handler = SIG_IGN;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
error = sigaction(SIGINT, &sa, NULL);
ATF_REQUIRE(error == 0);
pid = rfork(RFPROC);
ATF_REQUIRE(pid != -1);
if (pid == 0) {
struct kevent ev;
int kq;
kq = kqueue();
if (kq < 0)
err(1, "kqueue");
EV_SET(&ev, SIGINT, EVFILT_SIGNAL, EV_ADD | EV_ENABLE, 0, 0,
NULL);
if (kevent(kq, &ev, 1, NULL, 0, NULL) < 0)
err(2, "kevent");
if (kevent(kq, NULL, 0, &ev, 1, NULL) < 0)
err(3, "kevent");
_exit(0);
}
/* Wait for the child to block in kevent(). */
usleep(100000);
error = kill(pid, SIGINT);
ATF_REQUIRE(error == 0);
error = waitpid(pid, &status, 0);
ATF_REQUIRE(error != -1);
ATF_REQUIRE(WIFEXITED(status));
ATF_REQUIRE_EQ(WEXITSTATUS(status), 0);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, shared_table_filt_sig);
return (atf_no_error());
}