linux/tools/testing/selftests/net/forwarding/tc_actions.sh

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
NUM_NETIFS=4
source tc_common.sh
source lib.sh
tcflags="skip_hw"
h1_create()
{
simple_if_init $h1 192.0.2.1/24
}
h1_destroy()
{
simple_if_fini $h1 192.0.2.1/24
}
h2_create()
{
simple_if_init $h2 192.0.2.2/24
tc qdisc add dev $h2 clsact
}
h2_destroy()
{
tc qdisc del dev $h2 clsact
simple_if_fini $h2 192.0.2.2/24
}
switch_create()
{
simple_if_init $swp1 192.0.2.2/24
tc qdisc add dev $swp1 clsact
simple_if_init $swp2 192.0.2.1/24
}
switch_destroy()
{
simple_if_fini $swp2 192.0.2.1/24
tc qdisc del dev $swp1 clsact
simple_if_fini $swp1 192.0.2.2/24
}
mirred_egress_redirect_test()
{
RET=0
tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
$tcflags dst_ip 192.0.2.2 action drop
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
-t ip -q
tc_check_packets "dev $h2 ingress" 101 1
check_fail $? "Matched without redirect rule inserted"
tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
$tcflags dst_ip 192.0.2.2 action mirred egress redirect \
dev $swp2
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
-t ip -q
tc_check_packets "dev $h2 ingress" 101 1
check_err $? "Did not match incoming redirected packet"
tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
log_test "mirred egress redirect ($tcflags)"
}
gact_drop_and_ok_test()
{
RET=0
tc filter add dev $swp1 ingress protocol ip pref 2 handle 102 flower \
skip_hw dst_ip 192.0.2.2 action drop
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
-t ip -q
tc_check_packets "dev $swp1 ingress" 102 1
check_err $? "Packet was not dropped"
tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
$tcflags dst_ip 192.0.2.2 action ok
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
-t ip -q
tc_check_packets "dev $swp1 ingress" 101 1
check_err $? "Did not see trapped packet"
tc filter del dev $swp1 ingress protocol ip pref 2 handle 102 flower
tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
log_test "gact drop and ok ($tcflags)"
}
gact_trap_test()
{
RET=0
tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
skip_hw dst_ip 192.0.2.2 action drop
tc filter add dev $swp1 ingress protocol ip pref 3 handle 103 flower \
$tcflags dst_ip 192.0.2.2 action mirred egress redirect \
dev $swp2
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
-t ip -q
tc_check_packets "dev $swp1 ingress" 101 1
check_fail $? "Saw packet without trap rule inserted"
tc filter add dev $swp1 ingress protocol ip pref 2 handle 102 flower \
$tcflags dst_ip 192.0.2.2 action trap
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
-t ip -q
tc_check_packets "dev $swp1 ingress" 102 1
check_err $? "Packet was not trapped"
tc_check_packets "dev $swp1 ingress" 101 1
check_err $? "Did not see trapped packet"
tc filter del dev $swp1 ingress protocol ip pref 3 handle 103 flower
tc filter del dev $swp1 ingress protocol ip pref 2 handle 102 flower
tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
log_test "trap ($tcflags)"
}
setup_prepare()
{
h1=${NETIFS[p1]}
swp1=${NETIFS[p2]}
swp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
h1mac=$(mac_get $h1)
h2mac=$(mac_get $h2)
swp1origmac=$(mac_get $swp1)
swp2origmac=$(mac_get $swp2)
ip link set $swp1 address $h2mac
ip link set $swp2 address $h1mac
vrf_prepare
h1_create
h2_create
switch_create
}
cleanup()
{
pre_cleanup
switch_destroy
h2_destroy
h1_destroy
vrf_cleanup
ip link set $swp2 address $swp2origmac
ip link set $swp1 address $swp1origmac
}
trap cleanup EXIT
setup_prepare
setup_wait
gact_drop_and_ok_test
mirred_egress_redirect_test
tc_offload_check
if [[ $? -ne 0 ]]; then
log_info "Could not test offloaded functionality"
else
tcflags="skip_sw"
gact_drop_and_ok_test
mirred_egress_redirect_test
gact_trap_test
fi
exit $EXIT_STATUS