#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on
# egress of $swp2, the traffic is acted upon by an action skbedit priority. The
# new priority should be taken into account when classifying traffic on the PRIO
# qdisc at $swp2. The test verifies that for different priority values, the
# traffic ends up in expected PRIO band.
#
# +----------------------+ +----------------------+
# | H1 | | H2 |
# | + $h1 | | $h2 + |
# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
# +----|-----------------+ +----------------|-----+
# | |
# +----|----------------------------------------------------------------|-----+
# | SW | | |
# | +-|----------------------------------------------------------------|-+ |
# | | + $swp1 BR $swp2 + | |
# | | PRIO | |
# | +--------------------------------------------------------------------+ |
# +---------------------------------------------------------------------------+
ALL_TESTS="
ping_ipv4
test_ingress
test_egress
"
NUM_NETIFS=4
source lib.sh
: ${HIT_TIMEOUT:=2000} # ms
h1_create()
{
simple_if_init $h1 192.0.2.1/28
}
h1_destroy()
{
simple_if_fini $h1 192.0.2.1/28
}
h2_create()
{
simple_if_init $h2 192.0.2.2/28
}
h2_destroy()
{
simple_if_fini $h2 192.0.2.2/28
}
switch_create()
{
ip link add name br1 type bridge vlan_filtering 1
ip link set dev br1 addrgenmode none
ip link set dev br1 up
ip link set dev $swp1 master br1
ip link set dev $swp1 up
ip link set dev $swp2 master br1
ip link set dev $swp2 up
tc qdisc add dev $swp1 clsact
tc qdisc add dev $swp2 clsact
tc qdisc add dev $swp2 root handle 10: \
prio bands 8 priomap 7 6 5 4 3 2 1 0
}
switch_destroy()
{
tc qdisc del dev $swp2 root
tc qdisc del dev $swp2 clsact
tc qdisc del dev $swp1 clsact
ip link set dev $swp2 down
ip link set dev $swp2 nomaster
ip link set dev $swp1 down
ip link set dev $swp1 nomaster
ip link del dev br1
}
setup_prepare()
{
h1=${NETIFS[p1]}
swp1=${NETIFS[p2]}
swp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
h2mac=$(mac_get $h2)
vrf_prepare
h1_create
h2_create
switch_create
}
cleanup()
{
pre_cleanup
switch_destroy
h2_destroy
h1_destroy
vrf_cleanup
}
ping_ipv4()
{
ping_test $h1 192.0.2.2
}
test_skbedit_priority_one()
{
local locus=$1; shift
local prio=$1; shift
local classid=$1; shift
RET=0
tc filter add $locus handle 101 pref 1 \
flower action skbedit priority $prio
local pkt0=$(qdisc_parent_stats_get $swp2 $classid .packets)
local pkt2=$(tc_rule_handle_stats_get "$locus" 101)
$MZ $h1 -t udp "sp=54321,dp=12345" -c 10 -d 20msec -p 100 \
-a own -b $h2mac -A 192.0.2.1 -B 192.0.2.2 -q
local pkt1
pkt1=$(busywait "$HIT_TIMEOUT" until_counter_is ">= $((pkt0 + 10))" \
qdisc_parent_stats_get $swp2 $classid .packets)
check_err $? "Expected to get 10 packets on class $classid, but got $((pkt1 - pkt0))."
local pkt3=$(tc_rule_handle_stats_get "$locus" 101)
((pkt3 >= pkt2 + 10))
check_err $? "Expected to get 10 packets on skbedit rule but got $((pkt3 - pkt2))."
log_test "$locus skbedit priority $prio -> classid $classid"
tc filter del $locus pref 1
}
test_ingress()
{
local prio
for prio in {0..7}; do
test_skbedit_priority_one "dev $swp1 ingress" \
$prio 10:$((8 - prio))
done
}
test_egress()
{
local prio
for prio in {0..7}; do
test_skbedit_priority_one "dev $swp2 egress" \
$prio 10:$((8 - prio))
done
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS
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