1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3#
4# OVS kernel module self tests
5
6trap ovs_exit_sig EXIT TERM INT ERR
7
8# Kselftest framework requirement - SKIP code is 4.
9ksft_skip=4
10
11PAUSE_ON_FAIL=no
12VERBOSE=0
13TRACING=0
14
15tests="
16	arp_ping				eth-arp: Basic arp ping between two NS
17	ct_connect_v4				ip4-ct-xon: Basic ipv4 tcp connection using ct
18	connect_v4				ip4-xon: Basic ipv4 ping between two NS
19	nat_connect_v4				ip4-nat-xon: Basic ipv4 tcp connection via NAT
20	netlink_checks				ovsnl: validate netlink attrs and settings
21	upcall_interfaces			ovs: test the upcall interfaces
22	drop_reason				drop: test drop reasons are emitted"
23
24info() {
25    [ $VERBOSE = 0 ] || echo $*
26}
27
28ovs_base=`pwd`
29sbxs=
30sbx_add () {
31	info "adding sandbox '$1'"
32
33	sbxs="$sbxs $1"
34
35	NO_BIN=0
36
37	# Create sandbox.
38	local d="$ovs_base"/$1
39	if [ -e $d ]; then
40		info "removing $d"
41		rm -rf "$d"
42	fi
43	mkdir "$d" || return 1
44	ovs_setenv $1
45}
46
47ovs_exit_sig() {
48	[ -e ${ovs_dir}/cleanup ] && . "$ovs_dir/cleanup"
49}
50
51on_exit() {
52	echo "$1" > ${ovs_dir}/cleanup.tmp
53	cat ${ovs_dir}/cleanup >> ${ovs_dir}/cleanup.tmp
54	mv ${ovs_dir}/cleanup.tmp ${ovs_dir}/cleanup
55}
56
57ovs_setenv() {
58	sandbox=$1
59
60	ovs_dir=$ovs_base${1:+/$1}; export ovs_dir
61
62	test -e ${ovs_dir}/cleanup || : > ${ovs_dir}/cleanup
63}
64
65ovs_sbx() {
66	if test "X$2" != X; then
67		(ovs_setenv $1; shift; "$@" >> ${ovs_dir}/debug.log)
68	else
69		ovs_setenv $1
70	fi
71}
72
73ovs_add_dp () {
74	info "Adding DP/Bridge IF: sbx:$1 dp:$2 {$3, $4, $5}"
75	sbxname="$1"
76	shift
77	ovs_sbx "$sbxname" python3 $ovs_base/ovs-dpctl.py add-dp $*
78	on_exit "ovs_sbx $sbxname python3 $ovs_base/ovs-dpctl.py del-dp $1;"
79}
80
81ovs_add_if () {
82	info "Adding IF to DP: br:$2 if:$3"
83	if [ "$4" != "-u" ]; then
84		ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if "$2" "$3" \
85		    || return 1
86	else
87		python3 $ovs_base/ovs-dpctl.py add-if \
88		    -u "$2" "$3" >$ovs_dir/$3.out 2>$ovs_dir/$3.err &
89		pid=$!
90		on_exit "ovs_sbx $1 kill -TERM $pid 2>/dev/null"
91	fi
92}
93
94ovs_del_if () {
95	info "Deleting IF from DP: br:$2 if:$3"
96	ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-if "$2" "$3" || return 1
97}
98
99ovs_netns_spawn_daemon() {
100	sbx=$1
101	shift
102	netns=$1
103	shift
104	info "spawning cmd: $*"
105	ip netns exec $netns $*  >> $ovs_dir/stdout  2>> $ovs_dir/stderr &
106	pid=$!
107	ovs_sbx "$sbx" on_exit "kill -TERM $pid 2>/dev/null"
108}
109
110ovs_add_netns_and_veths () {
111	info "Adding netns attached: sbx:$1 dp:$2 {$3, $4, $5}"
112	ovs_sbx "$1" ip netns add "$3" || return 1
113	on_exit "ovs_sbx $1 ip netns del $3"
114	ovs_sbx "$1" ip link add "$4" type veth peer name "$5" || return 1
115	on_exit "ovs_sbx $1 ip link del $4 >/dev/null 2>&1"
116	ovs_sbx "$1" ip link set "$4" up || return 1
117	ovs_sbx "$1" ip link set "$5" netns "$3" || return 1
118	ovs_sbx "$1" ip netns exec "$3" ip link set "$5" up || return 1
119
120	if [ "$6" != "" ]; then
121		ovs_sbx "$1" ip netns exec "$3" ip addr add "$6" dev "$5" \
122		    || return 1
123	fi
124
125	if [ "$7" != "-u" ]; then
126		ovs_add_if "$1" "$2" "$4" || return 1
127	else
128		ovs_add_if "$1" "$2" "$4" -u || return 1
129	fi
130
131	[ $TRACING -eq 1 ] && ovs_netns_spawn_daemon "$1" "$ns" \
132			tcpdump -i any -s 65535
133
134	return 0
135}
136
137ovs_add_flow () {
138	info "Adding flow to DP: sbx:$1 br:$2 flow:$3 act:$4"
139	ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-flow "$2" "$3" "$4"
140	if [ $? -ne 0 ]; then
141		echo "Flow [ $3 : $4 ] failed" >> ${ovs_dir}/debug.log
142		return 1
143	fi
144	return 0
145}
146
147ovs_del_flows () {
148	info "Deleting all flows from DP: sbx:$1 br:$2"
149	ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-flows "$2"
150	return 0
151}
152
153ovs_drop_record_and_run () {
154	local sbx=$1
155	shift
156
157	perf record -a -q -e skb:kfree_skb -o ${ovs_dir}/perf.data $* \
158		>> ${ovs_dir}/stdout 2>> ${ovs_dir}/stderr
159	return $?
160}
161
162ovs_drop_reason_count()
163{
164	local reason=$1
165
166	local perf_output=`perf script -i ${ovs_dir}/perf.data -F trace:event,trace`
167	local pattern="skb:kfree_skb:.*reason: $reason"
168
169	return `echo "$perf_output" | grep "$pattern" | wc -l`
170}
171
172usage() {
173	echo
174	echo "$0 [OPTIONS] [TEST]..."
175	echo "If no TEST argument is given, all tests will be run."
176	echo
177	echo "Options"
178	echo "  -t: capture traffic via tcpdump"
179	echo "  -v: verbose"
180	echo "  -p: pause on failure"
181	echo
182	echo "Available tests${tests}"
183	exit 1
184}
185
186# drop_reason test
187# - drop packets and verify the right drop reason is reported
188test_drop_reason() {
189	which perf >/dev/null 2>&1 || return $ksft_skip
190
191	sbx_add "test_drop_reason" || return $?
192
193	ovs_add_dp "test_drop_reason" dropreason || return 1
194
195	info "create namespaces"
196	for ns in client server; do
197		ovs_add_netns_and_veths "test_drop_reason" "dropreason" "$ns" \
198			"${ns:0:1}0" "${ns:0:1}1" || return 1
199	done
200
201	# Setup client namespace
202	ip netns exec client ip addr add 172.31.110.10/24 dev c1
203	ip netns exec client ip link set c1 up
204
205	# Setup server namespace
206	ip netns exec server ip addr add 172.31.110.20/24 dev s1
207	ip netns exec server ip link set s1 up
208
209	# Check if drop reasons can be sent
210	ovs_add_flow "test_drop_reason" dropreason \
211		'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(10)' 2>/dev/null
212	if [ $? == 1 ]; then
213		info "no support for drop reasons - skipping"
214		ovs_exit_sig
215		return $ksft_skip
216	fi
217
218	ovs_del_flows "test_drop_reason" dropreason
219
220	# Allow ARP
221	ovs_add_flow "test_drop_reason" dropreason \
222		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
223	ovs_add_flow "test_drop_reason" dropreason \
224		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
225
226	# Allow client ICMP traffic but drop return path
227	ovs_add_flow "test_drop_reason" dropreason \
228		"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=1),icmp()" '2'
229	ovs_add_flow "test_drop_reason" dropreason \
230		"in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,proto=1),icmp()" 'drop'
231
232	ovs_drop_record_and_run "test_drop_reason" ip netns exec client ping -c 2 172.31.110.20
233	ovs_drop_reason_count 0x30001 # OVS_DROP_FLOW_ACTION
234	if [[ "$?" -ne "2" ]]; then
235		info "Did not detect expected drops: $?"
236		return 1
237	fi
238
239	# Drop UDP 6000 traffic with an explicit action and an error code.
240	ovs_add_flow "test_drop_reason" dropreason \
241		"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=6000)" \
242                'drop(42)'
243	# Drop UDP 7000 traffic with an explicit action with no error code.
244	ovs_add_flow "test_drop_reason" dropreason \
245		"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=7000)" \
246                'drop(0)'
247
248	ovs_drop_record_and_run \
249            "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 6000
250	ovs_drop_reason_count 0x30004 # OVS_DROP_EXPLICIT_ACTION_ERROR
251	if [[ "$?" -ne "1" ]]; then
252		info "Did not detect expected explicit error drops: $?"
253		return 1
254	fi
255
256	ovs_drop_record_and_run \
257            "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 7000
258	ovs_drop_reason_count 0x30003 # OVS_DROP_EXPLICIT_ACTION
259	if [[ "$?" -ne "1" ]]; then
260		info "Did not detect expected explicit drops: $?"
261		return 1
262	fi
263
264	return 0
265}
266
267# arp_ping test
268# - client has 1500 byte MTU
269# - server has 1500 byte MTU
270# - send ARP ping between two ns
271test_arp_ping () {
272
273	which arping >/dev/null 2>&1 || return $ksft_skip
274
275	sbx_add "test_arp_ping" || return $?
276
277	ovs_add_dp "test_arp_ping" arpping || return 1
278
279	info "create namespaces"
280	for ns in client server; do
281		ovs_add_netns_and_veths "test_arp_ping" "arpping" "$ns" \
282		    "${ns:0:1}0" "${ns:0:1}1" || return 1
283	done
284
285	# Setup client namespace
286	ip netns exec client ip addr add 172.31.110.10/24 dev c1
287	ip netns exec client ip link set c1 up
288	HW_CLIENT=`ip netns exec client ip link show dev c1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'`
289	info "Client hwaddr: $HW_CLIENT"
290
291	# Setup server namespace
292	ip netns exec server ip addr add 172.31.110.20/24 dev s1
293	ip netns exec server ip link set s1 up
294	HW_SERVER=`ip netns exec server ip link show dev s1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'`
295	info "Server hwaddr: $HW_SERVER"
296
297	ovs_add_flow "test_arp_ping" arpping \
298		"in_port(1),eth(),eth_type(0x0806),arp(sip=172.31.110.10,tip=172.31.110.20,sha=$HW_CLIENT,tha=ff:ff:ff:ff:ff:ff)" '2' || return 1
299	ovs_add_flow "test_arp_ping" arpping \
300		"in_port(2),eth(),eth_type(0x0806),arp()" '1' || return 1
301
302	ovs_sbx "test_arp_ping" ip netns exec client arping -I c1 172.31.110.20 -c 1 || return 1
303
304	return 0
305}
306
307# ct_connect_v4 test
308#  - client has 1500 byte MTU
309#  - server has 1500 byte MTU
310#  - use ICMP to ping in each direction
311#  - only allow CT state stuff to pass through new in c -> s
312test_ct_connect_v4 () {
313
314	which nc >/dev/null 2>/dev/null || return $ksft_skip
315
316	sbx_add "test_ct_connect_v4" || return $?
317
318	ovs_add_dp "test_ct_connect_v4" ct4 || return 1
319	info "create namespaces"
320	for ns in client server; do
321		ovs_add_netns_and_veths "test_ct_connect_v4" "ct4" "$ns" \
322		    "${ns:0:1}0" "${ns:0:1}1" || return 1
323	done
324
325	ip netns exec client ip addr add 172.31.110.10/24 dev c1
326	ip netns exec client ip link set c1 up
327	ip netns exec server ip addr add 172.31.110.20/24 dev s1
328	ip netns exec server ip link set s1 up
329
330	# Add forwarding for ARP and ip packets - completely wildcarded
331	ovs_add_flow "test_ct_connect_v4" ct4 \
332		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
333	ovs_add_flow "test_ct_connect_v4" ct4 \
334		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
335	ovs_add_flow "test_ct_connect_v4" ct4 \
336		     'ct_state(-trk),eth(),eth_type(0x0800),ipv4()' \
337		     'ct(commit),recirc(0x1)' || return 1
338	ovs_add_flow "test_ct_connect_v4" ct4 \
339		     'recirc_id(0x1),ct_state(+trk+new),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \
340		     '2' || return 1
341	ovs_add_flow "test_ct_connect_v4" ct4 \
342		     'recirc_id(0x1),ct_state(+trk+est),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \
343		     '2' || return 1
344	ovs_add_flow "test_ct_connect_v4" ct4 \
345		     'recirc_id(0x1),ct_state(+trk+est),in_port(2),eth(),eth_type(0x0800),ipv4(dst=172.31.110.10)' \
346		     '1' || return 1
347	ovs_add_flow "test_ct_connect_v4" ct4 \
348		     'recirc_id(0x1),ct_state(+trk+inv),eth(),eth_type(0x0800),ipv4()' 'drop' || \
349		     return 1
350
351	# do a ping
352	ovs_sbx "test_ct_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1
353
354	# create an echo server in 'server'
355	echo "server" | \
356		ovs_netns_spawn_daemon "test_ct_connect_v4" "server" \
357				nc -lvnp 4443
358	ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.20 4443 || return 1
359
360	# Now test in the other direction (should fail)
361	echo "client" | \
362		ovs_netns_spawn_daemon "test_ct_connect_v4" "client" \
363				nc -lvnp 4443
364	ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443
365	if [ $? == 0 ]; then
366	   info "ct connect to client was successful"
367	   return 1
368	fi
369
370	info "done..."
371	return 0
372}
373
374# connect_v4 test
375#  - client has 1500 byte MTU
376#  - server has 1500 byte MTU
377#  - use ICMP to ping in each direction
378test_connect_v4 () {
379
380	sbx_add "test_connect_v4" || return $?
381
382	ovs_add_dp "test_connect_v4" cv4 || return 1
383
384	info "create namespaces"
385	for ns in client server; do
386		ovs_add_netns_and_veths "test_connect_v4" "cv4" "$ns" \
387		    "${ns:0:1}0" "${ns:0:1}1" || return 1
388	done
389
390
391	ip netns exec client ip addr add 172.31.110.10/24 dev c1
392	ip netns exec client ip link set c1 up
393	ip netns exec server ip addr add 172.31.110.20/24 dev s1
394	ip netns exec server ip link set s1 up
395
396	# Add forwarding for ARP and ip packets - completely wildcarded
397	ovs_add_flow "test_connect_v4" cv4 \
398		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
399	ovs_add_flow "test_connect_v4" cv4 \
400		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
401	ovs_add_flow "test_connect_v4" cv4 \
402		'in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' '2' || return 1
403	ovs_add_flow "test_connect_v4" cv4 \
404		'in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20)' '1' || return 1
405
406	# do a ping
407	ovs_sbx "test_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1
408
409	info "done..."
410	return 0
411}
412
413# nat_connect_v4 test
414#  - client has 1500 byte MTU
415#  - server has 1500 byte MTU
416#  - use ICMP to ping in each direction
417#  - only allow CT state stuff to pass through new in c -> s
418test_nat_connect_v4 () {
419	which nc >/dev/null 2>/dev/null || return $ksft_skip
420
421	sbx_add "test_nat_connect_v4" || return $?
422
423	ovs_add_dp "test_nat_connect_v4" nat4 || return 1
424	info "create namespaces"
425	for ns in client server; do
426		ovs_add_netns_and_veths "test_nat_connect_v4" "nat4" "$ns" \
427		    "${ns:0:1}0" "${ns:0:1}1" || return 1
428	done
429
430	ip netns exec client ip addr add 172.31.110.10/24 dev c1
431	ip netns exec client ip link set c1 up
432	ip netns exec server ip addr add 172.31.110.20/24 dev s1
433	ip netns exec server ip link set s1 up
434
435	ip netns exec client ip route add default via 172.31.110.20
436
437	ovs_add_flow "test_nat_connect_v4" nat4 \
438		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
439	ovs_add_flow "test_nat_connect_v4" nat4 \
440		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
441	ovs_add_flow "test_nat_connect_v4" nat4 \
442		"ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20)" \
443		"ct(commit,nat(dst=172.31.110.20)),recirc(0x1)"
444	ovs_add_flow "test_nat_connect_v4" nat4 \
445		"ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \
446		"ct(commit,nat),recirc(0x2)"
447
448	ovs_add_flow "test_nat_connect_v4" nat4 \
449		"recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" "2"
450	ovs_add_flow "test_nat_connect_v4" nat4 \
451		"recirc_id(0x2),ct_state(+trk-inv),in_port(2),eth(),eth_type(0x0800),ipv4()" "1"
452
453	# do a ping
454	ovs_sbx "test_nat_connect_v4" ip netns exec client ping 192.168.0.20 -c 3 || return 1
455
456	# create an echo server in 'server'
457	echo "server" | \
458		ovs_netns_spawn_daemon "test_nat_connect_v4" "server" \
459				nc -lvnp 4443
460	ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 192.168.0.20 4443 || return 1
461
462	# Now test in the other direction (should fail)
463	echo "client" | \
464		ovs_netns_spawn_daemon "test_nat_connect_v4" "client" \
465				nc -lvnp 4443
466	ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443
467	if [ $? == 0 ]; then
468	   info "connect to client was successful"
469	   return 1
470	fi
471
472	info "done..."
473	return 0
474}
475
476# netlink_validation
477# - Create a dp
478# - check no warning with "old version" simulation
479test_netlink_checks () {
480	sbx_add "test_netlink_checks" || return 1
481
482	info "setting up new DP"
483	ovs_add_dp "test_netlink_checks" nv0 || return 1
484	# now try again
485	PRE_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+")
486	ovs_add_dp "test_netlink_checks" nv0 -V 0 || return 1
487	POST_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+")
488	if [ "$PRE_TEST" != "$POST_TEST" ]; then
489		info "failed - gen warning"
490		return 1
491	fi
492
493	ovs_add_netns_and_veths "test_netlink_checks" nv0 left left0 l0 || \
494	    return 1
495	ovs_add_netns_and_veths "test_netlink_checks" nv0 right right0 r0 || \
496	    return 1
497	[ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \
498	    wc -l) == 3 ] || \
499	      return 1
500	ovs_del_if "test_netlink_checks" nv0 right0 || return 1
501	[ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \
502	    wc -l) == 2 ] || \
503	      return 1
504
505	ERR_MSG="Flow actions may not be safe on all matching packets"
506	PRE_TEST=$(dmesg | grep -c "${ERR_MSG}")
507	ovs_add_flow "test_netlink_checks" nv0 \
508		'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \
509		&> /dev/null && return 1
510	POST_TEST=$(dmesg | grep -c "${ERR_MSG}")
511	if [ "$PRE_TEST" == "$POST_TEST" ]; then
512		info "failed - error not generated"
513		return 1
514	fi
515	return 0
516}
517
518test_upcall_interfaces() {
519	sbx_add "test_upcall_interfaces" || return 1
520
521	info "setting up new DP"
522	ovs_add_dp "test_upcall_interfaces" ui0 -V 2:1 || return 1
523
524	ovs_add_netns_and_veths "test_upcall_interfaces" ui0 upc left0 l0 \
525	    172.31.110.1/24 -u || return 1
526
527	sleep 1
528	info "sending arping"
529	ip netns exec upc arping -I l0 172.31.110.20 -c 1 \
530	    >$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr
531
532	grep -E "MISS upcall\[0/yes\]: .*arp\(sip=172.31.110.1,tip=172.31.110.20,op=1,sha=" $ovs_dir/left0.out >/dev/null 2>&1 || return 1
533	return 0
534}
535
536run_test() {
537	(
538	tname="$1"
539	tdesc="$2"
540
541	if ! lsmod | grep openvswitch >/dev/null 2>&1; then
542		stdbuf -o0 printf "TEST: %-60s  [NOMOD]\n" "${tdesc}"
543		return $ksft_skip
544	fi
545
546	if python3 ovs-dpctl.py -h 2>&1 | \
547	     grep -E "Need to (install|upgrade) the python" >/dev/null 2>&1; then
548		stdbuf -o0 printf "TEST: %-60s  [PYLIB]\n" "${tdesc}"
549		return $ksft_skip
550	fi
551	printf "TEST: %-60s  [START]\n" "${tname}"
552
553	unset IFS
554
555	eval test_${tname}
556	ret=$?
557
558	if [ $ret -eq 0 ]; then
559		printf "TEST: %-60s  [ OK ]\n" "${tdesc}"
560		ovs_exit_sig
561		rm -rf "$ovs_dir"
562	elif [ $ret -eq 1 ]; then
563		printf "TEST: %-60s  [FAIL]\n" "${tdesc}"
564		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
565			echo
566			echo "Pausing. Logs in $ovs_dir/. Hit enter to continue"
567			read a
568		fi
569		ovs_exit_sig
570		[ "${PAUSE_ON_FAIL}" = "yes" ] || rm -rf "$ovs_dir"
571		exit 1
572	elif [ $ret -eq $ksft_skip ]; then
573		printf "TEST: %-60s  [SKIP]\n" "${tdesc}"
574	elif [ $ret -eq 2 ]; then
575		rm -rf test_${tname}
576		run_test "$1" "$2"
577	fi
578
579	return $ret
580	)
581	ret=$?
582	case $ret in
583		0)
584			[ $all_skipped = true ] && [ $exitcode=$ksft_skip ] && exitcode=0
585			all_skipped=false
586		;;
587		$ksft_skip)
588			[ $all_skipped = true ] && exitcode=$ksft_skip
589		;;
590		*)
591			all_skipped=false
592			exitcode=1
593		;;
594	esac
595
596	return $ret
597}
598
599
600exitcode=0
601desc=0
602all_skipped=true
603
604while getopts :pvt o
605do
606	case $o in
607	p) PAUSE_ON_FAIL=yes;;
608	v) VERBOSE=1;;
609	t) if which tcpdump > /dev/null 2>&1; then
610		TRACING=1
611	   else
612		echo "=== tcpdump not available, tracing disabled"
613	   fi
614	   ;;
615	*) usage;;
616	esac
617done
618shift $(($OPTIND-1))
619
620IFS="
621"
622
623for arg do
624	# Check first that all requested tests are available before running any
625	command -v > /dev/null "test_${arg}" || { echo "=== Test ${arg} not found"; usage; }
626done
627
628name=""
629desc=""
630for t in ${tests}; do
631	[ "${name}" = "" ]	&& name="${t}"	&& continue
632	[ "${desc}" = "" ]	&& desc="${t}"
633
634	run_this=1
635	for arg do
636		[ "${arg}" != "${arg#--*}" ] && continue
637		[ "${arg}" = "${name}" ] && run_this=1 && break
638		run_this=0
639	done
640	if [ $run_this -eq 1 ]; then
641		run_test "${name}" "${desc}"
642	fi
643	name=""
644	desc=""
645done
646
647exit ${exitcode}
648