1 files changed, 155 insertions, 0 deletions
diff --git a/tests/sys/kern/sendfile_test.sh b/tests/sys/kern/sendfile_test.sh
new file mode 100755
index 000000000000..2efda9310396
--- /dev/null
+++ b/tests/sys/kern/sendfile_test.sh
@@ -0,0 +1,155 @@
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# 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.
+#
+# $FreeBSD$
+
+#
+# These tests exercise a few basic cases for the sendfile() syscall:
+# - successful operation.
+# - sendfile() starts an async disk read but that async I/O fails.
+# - sendfile() fails to read an indirect block and thus cannot
+#   even start an async I/O.
+#
+# In all cases we request some read ahead in addition to
+# the data to be sent to the socket.
+#
+
+MD_DEVS="md.devs"
+MNT=/mnt
+FILE=$MNT/file
+HELPER="$(atf_get_srcdir)/sendfile_helper"
+BSIZE=4096
+
+atf_test_case io_success cleanup
+io_success_head()
+{
+	atf_set "descr" "sendfile where all disk I/O succeeds"
+	atf_set "require.user" "root"
+	atf_set "timeout" 15
+}
+io_success_body()
+{
+	md=$(alloc_md)
+	common_body_setup $md
+
+	atf_check $HELPER $FILE 0 0x10000 0x10000
+}
+io_success_cleanup()
+{
+	common_cleanup
+}
+
+atf_test_case io_fail_sync cleanup
+io_fail_sync_head()
+{
+	atf_set "descr" "sendfile where we fail to start async I/O"
+	atf_set "require.user" "root"
+	atf_set "timeout" 15
+}
+io_fail_sync_body()
+{
+	md=$(alloc_md)
+	common_body_setup $md
+
+	atf_check gnop configure -r 100 -e 5 ${md}.nop
+	atf_check -s exit:3 -e ignore $HELPER $FILE $((12 * $BSIZE)) $BSIZE 0x10000
+}
+io_fail_sync_cleanup()
+{
+	common_cleanup
+}
+
+atf_test_case io_fail_async cleanup
+io_fail_async_head()
+{
+	atf_set "descr" "sendfile where an async I/O fails"
+	atf_set "require.user" "root"
+	atf_set "timeout" 15
+}
+io_fail_async_body()
+{
+	md=$(alloc_md)
+	common_body_setup $md
+
+	atf_check gnop configure -r 100 -e 5 ${md}.nop
+	atf_check -s exit:2 -e ignore $HELPER $FILE 0 $BSIZE 0x10000
+}
+io_fail_async_cleanup()
+{
+	common_cleanup
+}
+
+
+atf_init_test_cases()
+{
+	atf_add_test_case io_success
+	atf_add_test_case io_fail_sync
+	atf_add_test_case io_fail_async
+}
+
+alloc_md()
+{
+	local md
+
+	md=$(mdconfig -a -t swap -s 256M) || atf_fail "mdconfig -a failed"
+	echo ${md} >> $MD_DEVS
+	echo ${md}
+}
+
+common_body_setup()
+{
+	us=$1
+
+	atf_check -o ignore -e ignore newfs -b $BSIZE -U -j /dev/${us}
+	atf_check mount /dev/${us} $MNT
+	atf_check -e ignore dd if=/dev/zero of=$FILE bs=1m count=1
+	atf_check umount /mnt
+
+	load_gnop
+	atf_check gnop create /dev/${us}
+	atf_check mount /dev/${us}.nop $MNT
+	atf_check -o ignore ls -l $MNT/file
+}
+
+common_cleanup()
+{
+	umount -f $MNT
+	if [ -f "$MD_DEVS" ]; then
+		while read test_md; do
+			gnop destroy -f ${test_md}.nop 2>/dev/null
+			mdconfig -d -u $test_md 2>/dev/null
+		done < $MD_DEVS
+		rm $MD_DEVS
+	fi
+
+	true
+}
+
+load_gnop()
+{
+	if ! kldstat -q -m g_nop; then
+		geom nop load || atf_skip "could not load module for geom nop"
+	fi
+}