Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
5# egress of $swp2, the traffic is acted upon by an action skbedit priority. The
6# new priority should be taken into account when classifying traffic on the PRIO
7# qdisc at $swp2. The test verifies that for different priority values, the
8# traffic ends up in expected PRIO band.
9#
10# +----------------------+ +----------------------+
11# | H1 | | H2 |
12# | + $h1 | | $h2 + |
13# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
14# +----|-----------------+ +----------------|-----+
15# | |
16# +----|----------------------------------------------------------------|-----+
17# | SW | | |
18# | +-|----------------------------------------------------------------|-+ |
19# | | + $swp1 BR $swp2 + | |
20# | | PRIO | |
21# | +--------------------------------------------------------------------+ |
22# +---------------------------------------------------------------------------+
23
24ALL_TESTS="
25 ping_ipv4
26 test_ingress
27 test_egress
28"
29
30NUM_NETIFS=4
31source lib.sh
32
33: ${HIT_TIMEOUT:=2000} # ms
34
35h1_create()
36{
37 simple_if_init $h1 192.0.2.1/28
38}
39
40h1_destroy()
41{
42 simple_if_fini $h1 192.0.2.1/28
43}
44
45h2_create()
46{
47 simple_if_init $h2 192.0.2.2/28
48}
49
50h2_destroy()
51{
52 simple_if_fini $h2 192.0.2.2/28
53}
54
55switch_create()
56{
57 ip link add name br1 up type bridge vlan_filtering 1
58 ip link set dev $swp1 master br1
59 ip link set dev $swp1 up
60 ip link set dev $swp2 master br1
61 ip link set dev $swp2 up
62
63 tc qdisc add dev $swp1 clsact
64 tc qdisc add dev $swp2 clsact
65 tc qdisc add dev $swp2 root handle 10: \
66 prio bands 8 priomap 7 6 5 4 3 2 1 0
67}
68
69switch_destroy()
70{
71 tc qdisc del dev $swp2 root
72 tc qdisc del dev $swp2 clsact
73 tc qdisc del dev $swp1 clsact
74
75 ip link set dev $swp2 down
76 ip link set dev $swp2 nomaster
77 ip link set dev $swp1 down
78 ip link set dev $swp1 nomaster
79 ip link del dev br1
80}
81
82setup_prepare()
83{
84 h1=${NETIFS[p1]}
85 swp1=${NETIFS[p2]}
86
87 swp2=${NETIFS[p3]}
88 h2=${NETIFS[p4]}
89
90 h2mac=$(mac_get $h2)
91
92 vrf_prepare
93 h1_create
94 h2_create
95 switch_create
96}
97
98cleanup()
99{
100 pre_cleanup
101
102 switch_destroy
103 h2_destroy
104 h1_destroy
105 vrf_cleanup
106}
107
108ping_ipv4()
109{
110 ping_test $h1 192.0.2.2
111}
112
113test_skbedit_priority_one()
114{
115 local locus=$1; shift
116 local prio=$1; shift
117 local classid=$1; shift
118
119 RET=0
120
121 tc filter add $locus handle 101 pref 1 \
122 flower action skbedit priority $prio
123
124 local pkt0=$(qdisc_parent_stats_get $swp2 $classid .packets)
125 local pkt2=$(tc_rule_handle_stats_get "$locus" 101)
126 $MZ $h1 -t udp "sp=54321,dp=12345" -c 10 -d 20msec -p 100 \
127 -a own -b $h2mac -A 192.0.2.1 -B 192.0.2.2 -q
128
129 local pkt1
130 pkt1=$(busywait "$HIT_TIMEOUT" until_counter_is ">= $((pkt0 + 10))" \
131 qdisc_parent_stats_get $swp2 $classid .packets)
132 check_err $? "Expected to get 10 packets on class $classid, but got $((pkt1 - pkt0))."
133
134 local pkt3=$(tc_rule_handle_stats_get "$locus" 101)
135 ((pkt3 >= pkt2 + 10))
136 check_err $? "Expected to get 10 packets on skbedit rule but got $((pkt3 - pkt2))."
137
138 log_test "$locus skbedit priority $prio -> classid $classid"
139
140 tc filter del $locus pref 1
141}
142
143test_ingress()
144{
145 local prio
146
147 for prio in {0..7}; do
148 test_skbedit_priority_one "dev $swp1 ingress" \
149 $prio 10:$((8 - prio))
150 done
151}
152
153test_egress()
154{
155 local prio
156
157 for prio in {0..7}; do
158 test_skbedit_priority_one "dev $swp2 egress" \
159 $prio 10:$((8 - prio))
160 done
161}
162
163trap cleanup EXIT
164
165setup_prepare
166setup_wait
167
168tests_run
169
170exit $EXIT_STATUS