xref: /freebsd/tests/sys/kern/sendfile_test.sh (revision 7a7741af18d6c8a804cc643cb7ecda9d730c6aa6)
1# SPDX-License-Identifier: BSD-2-Clause
2#
3# Copyright (c) 2020 Netflix, Inc.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8# 1. Redistributions of source code must retain the above copyright
9#    notice, this list of conditions and the following disclaimer.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24# SUCH DAMAGE.
25#
26
27#
28# These tests exercise a few basic cases for the sendfile() syscall:
29# - successful operation.
30# - sendfile() starts an async disk read but that async I/O fails.
31# - sendfile() fails to read an indirect block and thus cannot
32#   even start an async I/O.
33#
34# In all cases we request some read ahead in addition to
35# the data to be sent to the socket.
36#
37
38MD_DEVS="md.devs"
39MNT=mnt
40FILE=$MNT/file
41HELPER="$(atf_get_srcdir)/sendfile_helper"
42BSIZE=4096
43
44atf_test_case io_success cleanup
45io_success_head()
46{
47	atf_set "descr" "sendfile where all disk I/O succeeds"
48	atf_set "require.user" "root"
49	atf_set "timeout" 15
50}
51io_success_body()
52{
53	if [ "$(atf_config_get qemu false)" = "true" ]; then
54	    atf_skip "Sendfile(4) unimplemented. https://github.com/qemu-bsd-user/qemu-bsd-user/issues/25"
55	fi
56
57	alloc_md md
58	common_body_setup $md
59
60	atf_check $HELPER $FILE 0 0x10000 0x10000
61}
62io_success_cleanup()
63{
64	common_cleanup
65}
66
67atf_test_case io_fail_sync cleanup
68io_fail_sync_head()
69{
70	atf_set "descr" "sendfile where we fail to start async I/O"
71	atf_set "require.user" "root"
72	atf_set "timeout" 15
73}
74io_fail_sync_body()
75{
76	if [ "$(atf_config_get qemu false)" = "true" ]; then
77	    atf_skip "Sendfile(4) unimplemented. https://github.com/qemu-bsd-user/qemu-bsd-user/issues/25"
78	fi
79
80	alloc_md md
81	common_body_setup $md
82
83	atf_check gnop configure -r 100 -e 5 ${md}.nop
84	atf_check -s exit:3 -e ignore $HELPER $FILE $((12 * $BSIZE)) $BSIZE 0x10000
85}
86io_fail_sync_cleanup()
87{
88	common_cleanup
89}
90
91atf_test_case io_fail_async cleanup
92io_fail_async_head()
93{
94	atf_set "descr" "sendfile where an async I/O fails"
95	atf_set "require.user" "root"
96	atf_set "timeout" 15
97}
98io_fail_async_body()
99{
100	if [ "$(atf_config_get qemu false)" = "true" ]; then
101	    atf_skip "Sendfile(4) unimplemented. https://github.com/qemu-bsd-user/qemu-bsd-user/issues/25"
102	fi
103
104	alloc_md md
105	common_body_setup $md
106
107	atf_check gnop configure -r 100 -e 5 ${md}.nop
108	atf_check -s exit:2 -e ignore $HELPER $FILE 0 $BSIZE 0x10000
109}
110io_fail_async_cleanup()
111{
112	common_cleanup
113}
114
115atf_test_case unix_success cleanup
116unix_success_head()
117{
118	atf_set "descr" "sendfile via unix(4) where all disk I/O succeeds"
119	atf_set "require.user" "root"
120	atf_set "timeout" 15
121}
122unix_success_body()
123{
124	if [ "$(atf_config_get qemu false)" = "true" ]; then
125	    atf_skip "Sendfile(4) unimplemented. https://github.com/qemu-bsd-user/qemu-bsd-user/issues/25"
126	fi
127
128	alloc_md md
129	common_body_setup $md
130
131	atf_check $HELPER -u $FILE 0 0x10000 0x10000
132}
133unix_success_cleanup()
134{
135	common_cleanup
136}
137
138
139atf_init_test_cases()
140{
141	atf_add_test_case io_success
142	atf_add_test_case io_fail_sync
143	atf_add_test_case io_fail_async
144	atf_add_test_case unix_success
145}
146
147alloc_md()
148{
149	local _md
150
151	[ -c /dev/mdctl ] || atf_skip "no /dev/mdctl to create md devices"
152	_md=$(mdconfig -a -t swap -s 256M) || atf_fail "mdconfig -a failed"
153	echo ${_md} >> $MD_DEVS
154	eval "${1}='${_md}'"
155}
156
157common_body_setup()
158{
159	us=$1
160
161	atf_check mkdir $MNT
162	atf_check -o ignore -e ignore newfs -b $BSIZE -U -j /dev/${us}
163	atf_check mount /dev/${us} $MNT
164	atf_check -e ignore dd if=/dev/zero of=$FILE bs=1m count=1
165	atf_check umount $MNT
166
167	load_gnop
168	atf_check gnop create /dev/${us}
169	atf_check mount /dev/${us}.nop $MNT
170	atf_check -o ignore ls -l $MNT/file
171}
172
173common_cleanup()
174{
175	umount -f $MNT
176	if [ -f "$MD_DEVS" ]; then
177		while read test_md; do
178			gnop destroy -f ${test_md}.nop 2>/dev/null
179			mdconfig -d -u $test_md 2>/dev/null
180		done < $MD_DEVS
181		rm $MD_DEVS
182	fi
183
184	true
185}
186
187load_gnop()
188{
189	if ! kldstat -q -m g_nop; then
190		geom nop load || atf_skip "could not load module for geom nop"
191	fi
192}
193