pedit_l4port.sh

  1#!/bin/bash
  2# SPDX-License-Identifier: GPL-2.0
  3
  4# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on egress of $swp2, the
  5# traffic is acted upon by a pedit action. An ingress filter installed on $h2 verifies that the
  6# packet looks like expected.
  7#
  8# +----------------------+                             +----------------------+
  9# | H1                   |                             |                   H2 |
 10# |    + $h1             |                             |            $h2 +     |
 11# |    | 192.0.2.1/28    |                             |   192.0.2.2/28 |     |
 12# +----|-----------------+                             +----------------|-----+
 13#      |                                                                |
 14# +----|----------------------------------------------------------------|-----+
 15# | SW |                                                                |     |
 16# |  +-|----------------------------------------------------------------|-+   |
 17# |  | + $swp1                       BR                           $swp2 + |   |
 18# |  +--------------------------------------------------------------------+   |
 19# +---------------------------------------------------------------------------+
 20
 21ALL_TESTS="
 22	ping_ipv4
 23	test_udp_sport
 24	test_udp_dport
 25	test_tcp_sport
 26	test_tcp_dport
 27"
 28
 29NUM_NETIFS=4
 30source lib.sh
 31source tc_common.sh
 32
 33: ${HIT_TIMEOUT:=2000} # ms
 34
 35h1_create()
 36{
 37	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
 38}
 39
 40h1_destroy()
 41{
 42	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
 43}
 44
 45h2_create()
 46{
 47	simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
 48	tc qdisc add dev $h2 clsact
 49}
 50
 51h2_destroy()
 52{
 53	tc qdisc del dev $h2 clsact
 54	simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
 55}
 56
 57switch_create()
 58{
 59	ip link add name br1 up type bridge vlan_filtering 1
 60	ip link set dev $swp1 master br1
 61	ip link set dev $swp1 up
 62	ip link set dev $swp2 master br1
 63	ip link set dev $swp2 up
 64
 65	tc qdisc add dev $swp1 clsact
 66	tc qdisc add dev $swp2 clsact
 67}
 68
 69switch_destroy()
 70{
 71	tc qdisc del dev $swp2 clsact
 72	tc qdisc del dev $swp1 clsact
 73
 74	ip link set dev $swp2 down
 75	ip link set dev $swp2 nomaster
 76	ip link set dev $swp1 down
 77	ip link set dev $swp1 nomaster
 78	ip link del dev br1
 79}
 80
 81setup_prepare()
 82{
 83	h1=${NETIFS[p1]}
 84	swp1=${NETIFS[p2]}
 85
 86	swp2=${NETIFS[p3]}
 87	h2=${NETIFS[p4]}
 88
 89	h2mac=$(mac_get $h2)
 90
 91	vrf_prepare
 92	h1_create
 93	h2_create
 94	switch_create
 95}
 96
 97cleanup()
 98{
 99	pre_cleanup
100
101	switch_destroy
102	h2_destroy
103	h1_destroy
104	vrf_cleanup
105}
106
107ping_ipv4()
108{
109	ping_test $h1 192.0.2.2
110}
111
112ping_ipv6()
113{
114	ping6_test $h1 2001:db8:1::2
115}
116
117do_test_pedit_l4port_one()
118{
119	local pedit_locus=$1; shift
120	local pedit_prot=$1; shift
121	local pedit_action=$1; shift
122	local match_prot=$1; shift
123	local match_flower=$1; shift
124	local mz_flags=$1; shift
125	local saddr=$1; shift
126	local daddr=$1; shift
127
128	tc filter add $pedit_locus handle 101 pref 1 \
129	   flower action pedit ex munge $pedit_action
130	tc filter add dev $h2 ingress handle 101 pref 1 prot $match_prot \
131	   flower skip_hw $match_flower action pass
132
133	RET=0
134
135	$MZ $mz_flags $h1 -c 10 -d 20msec -p 100 \
136	    -a own -b $h2mac -q -t $pedit_prot sp=54321,dp=12345
137
138	local pkts
139	pkts=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= 10" \
140			tc_rule_handle_stats_get "dev $h2 ingress" 101)
141	check_err $? "Expected to get 10 packets, but got $pkts."
142
143	pkts=$(tc_rule_handle_stats_get "$pedit_locus" 101)
144	((pkts >= 10))
145	check_err $? "Expected to get 10 packets on pedit rule, but got $pkts."
146
147	log_test "$pedit_locus pedit $pedit_action"
148
149	tc filter del dev $h2 ingress pref 1
150	tc filter del $pedit_locus pref 1
151}
152
153do_test_pedit_l4port()
154{
155	local locus=$1; shift
156	local prot=$1; shift
157	local pedit_port=$1; shift
158	local flower_port=$1; shift
159	local port
160
161	for port in 1 11111 65535; do
162		do_test_pedit_l4port_one "$locus" "$prot"			\
163					 "$prot $pedit_port set $port"		\
164					 ip "ip_proto $prot $flower_port $port"	\
165					 "-A 192.0.2.1 -B 192.0.2.2"
166	done
167}
168
169test_udp_sport()
170{
171	do_test_pedit_l4port "dev $swp1 ingress" udp sport src_port
172	do_test_pedit_l4port "dev $swp2 egress"  udp sport src_port
173}
174
175test_udp_dport()
176{
177	do_test_pedit_l4port "dev $swp1 ingress" udp dport dst_port
178	do_test_pedit_l4port "dev $swp2 egress"  udp dport dst_port
179}
180
181test_tcp_sport()
182{
183	do_test_pedit_l4port "dev $swp1 ingress" tcp sport src_port
184	do_test_pedit_l4port "dev $swp2 egress"  tcp sport src_port
185}
186
187test_tcp_dport()
188{
189	do_test_pedit_l4port "dev $swp1 ingress" tcp dport dst_port
190	do_test_pedit_l4port "dev $swp2 egress"  tcp dport dst_port
191}
192
193trap cleanup EXIT
194
195setup_prepare
196setup_wait
197
198tests_run
199
200exit $EXIT_STATUS