1 files changed, 147 insertions, 0 deletions
diff --git a/tests/sys/kern/sendfile_helper.c b/tests/sys/kern/sendfile_helper.c
new file mode 100644
index 000000000000..d538a510c860
--- /dev/null
+++ b/tests/sys/kern/sendfile_helper.c
@@ -0,0 +1,147 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2020 Netflix, Inc.
+ *
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/sysctl.h>
+#include <sys/uio.h>
+
+#include <netinet/in.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static int ls;
+static char buf[1024*1024];
+static volatile bool accept_done = false;
+static volatile bool read_done = false;
+
+static void *
+server(void *arg)
+{
+	struct sockaddr_in sin;
+	ssize_t rv;
+	socklen_t slen;
+	int ss;
+	ssize_t readlen = (uintptr_t)arg;
+
+	slen = sizeof(sin);
+	ss = accept(ls, (void *)&sin, &slen);
+	if (ss < 0)
+		err(1, "accept ls");
+
+	accept_done = true;
+
+	do {
+		rv = read(ss, buf, sizeof(buf));
+		if (rv == -1)
+			err(2, "read receiver");
+		if (rv == 0)
+			break;
+		readlen -= rv;
+	} while (readlen != 0);
+
+	read_done = true;
+
+	return NULL;
+}
+
+int
+main(int argc, char **argv)
+{
+	pthread_t pt;
+	struct sockaddr_in sin;
+	off_t start, len;
+	socklen_t slen;
+	int fd, cs, on, flags, error;
+
+	if (argc != 5)
+		errx(1, "usage: %s <file> <start> <len> <flags>",
+		    getprogname());
+
+	start = strtoull(argv[2], NULL, 0);
+	len = strtoull(argv[3], NULL, 0);
+	flags = strtoul(argv[4], NULL, 0);
+
+	fd = open(argv[1], O_RDONLY);
+	if (fd < 0)
+		err(1, "open");		
+
+	ls = socket(PF_INET, SOCK_STREAM, 0);
+	if (ls < 0)
+		err(1, "socket ls");
+
+	on = 1;
+	if (setsockopt(ls, SOL_SOCKET, SO_REUSEADDR, (void *)&on,
+	    (socklen_t)sizeof(on)) < 0)
+		err(1, "SO_REUSEADDR");
+
+	sin.sin_len = sizeof(sin);
+	sin.sin_family = AF_INET;
+	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+	sin.sin_port = 0;
+	if (bind(ls, (void *)&sin, sizeof(sin)) < 0)
+		err(1, "bind ls");
+
+	slen = sizeof(sin);
+	if (getsockname(ls, (void *)&sin, &slen) < 0)
+		err(1, "getsockname");
+
+	if (listen(ls, 5) < 0)
+		err(1, "listen ls");
+
+	error = pthread_create(&pt, NULL, server, (void *)(uintptr_t)len);
+	if (error)
+		errc(1, error, "pthread_create");
+
+	cs = socket(PF_INET, SOCK_STREAM, 0);
+	if (cs < 0)
+		err(1, "socket cs");
+
+	if (connect(cs, (void *)&sin, sizeof(sin)) < 0)
+		err(1, "connect cs");
+
+	while (!accept_done)
+		usleep(1000);
+
+	if (sendfile(fd, cs, start, len, NULL, NULL, flags) < 0)
+		err(3, "sendfile");
+
+	while (!read_done)
+		usleep(1000);
+
+	exit(0);
+}