git: 3f1f48f1d95a - main - stress2: Add a regression test for D38549

The branch main has been updated by pho:

URL: https://cgit.FreeBSD.org/src/commit/?id=3f1f48f1d95a4923a557e34acc047a3ef8630532

commit 3f1f48f1d95a4923a557e34acc047a3ef8630532
Author:     Peter Holm <pho@FreeBSD.org>
AuthorDate: 2023-02-14 08:44:58 +0000
Commit:     Peter Holm <pho@FreeBSD.org>
CommitDate: 2023-02-14 08:44:58 +0000

    stress2: Add a regression test for D38549
---
 tools/test/stress2/misc/msdos18.sh | 250 +++++++++++++++++++++++++++++++++++++
 1 file changed, 250 insertions(+)

diff --git a/tools/test/stress2/misc/msdos18.sh b/tools/test/stress2/misc/msdos18.sh
new file mode 100755
index 000000000000..faeed9dca944
--- /dev/null
+++ b/tools/test/stress2/misc/msdos18.sh
@@ -0,0 +1,250 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2023 Peter Holm <pho@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.
+#
+
+# D38549: msdosfs deextend: validate pages of the partial buffer
+
+# https://people.freebsd.org/~pho/stress/log/log0420.txt
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+set -eu
+prog=$(basename "$0" .sh)
+mkdir -p $mntpoint
+mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
+[ -c /dev/md$mdstart ] &&  mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 1g -u $mdstart
+newfs_msdos /dev/md$mdstart > /dev/null 2>&1
+mount -t msdosfs /dev/md$mdstart $mntpoint
+mount | grep $mntpoint
+set +e
+
+odir=`pwd`
+
+cd /tmp
+sed '1,/^EOF/d' < $odir/$0 > $prog.c
+cc -o $prog -Wall -O0 $prog.c -pthread || exit 1
+rm -f $prog.c
+cd $mntpoint
+
+in=inputFile
+out=outputFile
+
+/tmp/$prog $in $out 12345
+ls -al
+
+cd $odir
+umount $mntpoint
+mdconfig -d -u $mdstart
+rm -f /tmp/$prog
+exit
+EOF
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <pthread_np.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+int fd, port;
+volatile int go;
+char *inputFile;
+char *outputFile;
+
+#define FSIZE 936374
+char buf[FSIZE];
+
+static void
+reader(void) {
+	struct sockaddr_in inetaddr, inetpeer;
+	socklen_t len;
+	int on, n, tcpsock, msgsock;
+
+	on = 1;
+	if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+		err(1, "socket(), %s:%d", __FILE__, __LINE__);
+
+	if (setsockopt(tcpsock,
+	    SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
+		err(1, "setsockopt(), %s:%d", __FILE__, __LINE__);
+
+	inetaddr.sin_family = AF_INET;
+	inetaddr.sin_addr.s_addr = INADDR_ANY;
+	inetaddr.sin_port = htons(port);
+	inetaddr.sin_len = sizeof(inetaddr);
+
+	if (bind(tcpsock,
+	    (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0)
+		err(1, "bind(), %s:%d", __FILE__, __LINE__);
+
+	if (listen(tcpsock, 5) < 0)
+		err(1, "listen(), %s:%d", __FILE__, __LINE__);
+
+	len = sizeof(inetpeer);
+	if ((msgsock = accept(tcpsock,
+	    (struct sockaddr *)&inetpeer, &len)) < 0)
+		err(1, "accept(), %s:%d", __FILE__, __LINE__);
+
+	if ((fd = open(outputFile, O_RDWR | O_CREAT | O_TRUNC, 0640)) == -1)
+		err(1, "open(%s)", outputFile);
+
+	usleep(arc4random() % 1000);
+	for (;;) {
+		if ((n = read(msgsock, buf, FSIZE)) < 0)
+			err(1, "read(), %s:%d", __FILE__, __LINE__);
+		if (n == 0)
+			break;
+
+	}
+	close(msgsock);
+	close(tcpsock);
+	close(fd);
+	return;
+}
+
+static void *
+thr(void *data __unused)
+{
+	pthread_set_name_np(pthread_self(), __func__);
+	go = 1;
+	while (go == 1) {
+		ftruncate(fd, FSIZE / 2);
+		ftruncate(fd, FSIZE);
+	}
+
+	return (NULL);
+}
+
+static void
+writer(void) {
+	struct hostent *hostent;
+	struct sockaddr_in inetaddr;
+	pthread_t tid;
+	off_t off = 0;
+	size_t size;
+	int i, on, r, tcpsock;
+
+	on = 1;
+	for (i = 1; i < 5; i++) {
+		if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+			err(1, "socket(), %s:%d", __FILE__, __LINE__);
+
+		if (setsockopt(tcpsock,
+		    SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
+			err(1, "setsockopt(), %s:%d", __FILE__, __LINE__);
+
+		size = getpagesize();
+		if (setsockopt(tcpsock, SOL_SOCKET, SO_SNDBUF, (void *)&size,
+		    sizeof(size)) < 0)
+			err(1, "setsockopt(SO_SNDBUF), %s:%d",
+			    __FILE__, __LINE__);
+
+		hostent = gethostbyname ("localhost");
+		memcpy (&inetaddr.sin_addr.s_addr, hostent->h_addr,
+			sizeof (struct in_addr));
+
+		inetaddr.sin_family = AF_INET;
+		inetaddr.sin_port = htons(port);
+		inetaddr.sin_len = sizeof(inetaddr);
+
+		r = connect(tcpsock, (struct sockaddr *) &inetaddr,
+			sizeof(inetaddr));
+		if (r == 0)
+			break;
+		sleep(1);
+		close(tcpsock);
+	}
+	if (r < 0)
+		err(1, "connect(), %s:%d", __FILE__, __LINE__);
+
+	if ((fd = open(inputFile, O_RDWR | O_CREAT | O_TRUNC, 0640)) == -1)
+		err(1, "open(%s)", inputFile);
+
+	if (write(fd, buf, sizeof(buf)) != sizeof(buf))
+		err(1, "write()");
+
+	r = pthread_create(&tid, NULL, thr, NULL);
+	if (r)
+		errc(1, r, "pthread_create");
+
+	usleep(5000);
+	if (sendfile(fd, tcpsock, 0, FSIZE, NULL, &off, 0) == -1)
+		err(1, "sendfile");
+
+	usleep(arc4random() % 20000);
+	go = 0;
+	if ((r = pthread_join(tid, NULL)) != 0)
+		errc(1, r, "pthread_join");
+
+	_exit(0);
+}
+
+int
+main(int argc, char **argv)
+{
+	pid_t pid;
+	time_t start;
+
+	if (argc != 4) {
+		fprintf(stderr, "Usage: %s <inputFile outputFile portNumber\n",
+		    argv[0]);
+		return (1);
+	}
+	inputFile = argv[1];
+	outputFile = argv[2];
+	port = atoi(argv[3]);
+	pthread_set_name_np(pthread_self(), __func__);
+
+	start = time(NULL);
+	while (time(NULL) - start < 120) {
+		if ((pid = fork()) == 0) {
+			writer();
+		} else if (pid > 0) {
+			reader();
+			kill(pid, SIGINT);
+			if (waitpid(pid, NULL, 0) != pid)
+				err(1, "waitpid()");
+		} else
+			err(1, "fork(), %s:%d",  __FILE__, __LINE__);
+	}
+
+	return (0);
+}