#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
ALL_TESTS="gact_drop_and_ok_test mirred_egress_redirect_test \
mirred_egress_mirror_test matchall_mirred_egress_mirror_test \
gact_trap_test mirred_egress_to_ingress_test \
mirred_egress_to_ingress_tcp_test"
NUM_NETIFS=4
source tc_common.sh
source lib.sh
require_command ncat
tcflags="skip_hw"
h1_create()
{
simple_if_init $h1 192.0.2.1/24
tc qdisc add dev $h1 clsact
}
h1_destroy()
{
tc qdisc del dev $h1 clsact
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_test()
{
local action=$1
local protocol=$2
local classifier=$3
local classifier_args=$4
RET=0
tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
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 $protocol pref 1 handle 101 \
$classifier $tcflags $classifier_args \
action mirred egress $action 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 $action packet"
tc filter del dev $swp1 ingress protocol $protocol pref 1 handle 101 \
$classifier
tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
log_test "mirred egress $classifier $action ($tcflags)"
}
gact_drop_and_ok_test()
{
RET=0
tc filter add dev $swp1 ingress protocol ip pref 2 handle 102 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 $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 passed packet"
tc_check_packets "dev $swp1 ingress" 102 2
check_fail $? "Packet was dropped and it should not reach here"
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
if [[ "$tcflags" != "skip_sw" ]]; then
return 0;
fi
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)"
}
mirred_egress_to_ingress_test()
{
RET=0
tc filter add dev $h1 protocol ip pref 100 handle 100 egress flower \
ip_proto icmp src_ip 192.0.2.1 dst_ip 192.0.2.2 type 8 action \
ct commit nat src addr 192.0.2.2 pipe \
ct clear pipe \
ct commit nat dst addr 192.0.2.1 pipe \
mirred ingress redirect dev $h1
tc filter add dev $swp1 protocol ip pref 11 handle 111 ingress flower \
ip_proto icmp src_ip 192.0.2.1 dst_ip 192.0.2.2 type 8 action drop
tc filter add dev $swp1 protocol ip pref 12 handle 112 ingress flower \
ip_proto icmp src_ip 192.0.2.1 dst_ip 192.0.2.2 type 0 action pass
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
-t icmp "ping,id=42,seq=10" -q
tc_check_packets "dev $h1 egress" 100 1
check_err $? "didn't mirror first packet"
tc_check_packets "dev $swp1 ingress" 111 1
check_fail $? "didn't redirect first packet"
tc_check_packets "dev $swp1 ingress" 112 1
check_err $? "didn't receive reply to first packet"
ping 192.0.2.2 -I$h1 -c1 -w1 -q 1>/dev/null 2>&1
tc_check_packets "dev $h1 egress" 100 2
check_err $? "didn't mirror second packet"
tc_check_packets "dev $swp1 ingress" 111 1
check_fail $? "didn't redirect second packet"
tc_check_packets "dev $swp1 ingress" 112 2
check_err $? "didn't receive reply to second packet"
tc filter del dev $h1 egress protocol ip pref 100 handle 100 flower
tc filter del dev $swp1 ingress protocol ip pref 11 handle 111 flower
tc filter del dev $swp1 ingress protocol ip pref 12 handle 112 flower
log_test "mirred_egress_to_ingress ($tcflags)"
}
mirred_egress_to_ingress_tcp_test()
{
mirred_e2i_tf1=$(mktemp) mirred_e2i_tf2=$(mktemp)
RET=0
dd conv=sparse status=none if=/dev/zero bs=1M count=2 of=$mirred_e2i_tf1
tc filter add dev $h1 protocol ip pref 100 handle 100 egress flower \
$tcflags ip_proto tcp src_ip 192.0.2.1 dst_ip 192.0.2.2 \
action ct commit nat src addr 192.0.2.2 pipe \
action ct clear pipe \
action ct commit nat dst addr 192.0.2.1 pipe \
action ct clear pipe \
action skbedit ptype host pipe \
action mirred ingress redirect dev $h1
tc filter add dev $h1 protocol ip pref 101 handle 101 egress flower \
$tcflags ip_proto icmp \
action mirred ingress redirect dev $h1
tc filter add dev $h1 protocol ip pref 102 handle 102 ingress flower \
ip_proto icmp \
action drop
ip vrf exec v$h1 ncat --recv-only -w10 -l -p 12345 -o $mirred_e2i_tf2 &
local rpid=$!
ip vrf exec v$h1 ncat -w1 --send-only 192.0.2.2 12345 <$mirred_e2i_tf1
wait -n $rpid
cmp -s $mirred_e2i_tf1 $mirred_e2i_tf2
check_err $? "server output check failed"
$MZ $h1 -c 10 -p 64 -a $h1mac -b $h1mac -A 192.0.2.1 -B 192.0.2.1 \
-t icmp "ping,id=42,seq=5" -q
tc_check_packets "dev $h1 egress" 101 10
check_err $? "didn't mirred redirect ICMP"
tc_check_packets "dev $h1 ingress" 102 10
check_err $? "didn't drop mirred ICMP"
local overlimits=$(tc_rule_stats_get ${h1} 101 egress .overlimits)
test ${overlimits} = 10
check_err $? "wrong overlimits, expected 10 got ${overlimits}"
tc filter del dev $h1 egress protocol ip pref 100 handle 100 flower
tc filter del dev $h1 egress protocol ip pref 101 handle 101 flower
tc filter del dev $h1 ingress protocol ip pref 102 handle 102 flower
rm -f $mirred_e2i_tf1 $mirred_e2i_tf2
log_test "mirred_egress_to_ingress_tcp ($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()
{
local tf
pre_cleanup
switch_destroy
h2_destroy
h1_destroy
vrf_cleanup
ip link set $swp2 address $swp2origmac
ip link set $swp1 address $swp1origmac
for tf in $mirred_e2i_tf1 $mirred_e2i_tf2; do rm -f $tf; done
}
mirred_egress_redirect_test()
{
mirred_egress_test "redirect" "ip" "flower" "dst_ip 192.0.2.2"
}
mirred_egress_mirror_test()
{
mirred_egress_test "mirror" "ip" "flower" "dst_ip 192.0.2.2"
}
matchall_mirred_egress_mirror_test()
{
mirred_egress_test "mirror" "all" "matchall" ""
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
tc_offload_check
if [[ $? -ne 0 ]]; then
log_info "Could not test offloaded functionality"
else
tcflags="skip_sw"
tests_run
fi
exit $EXIT_STATUS