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-rwxr-xr-xtools/testing/selftests/net/forwarding/tc_police.sh441
1 files changed, 441 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/forwarding/tc_police.sh b/tools/testing/selftests/net/forwarding/tc_police.sh
new file mode 100755
index 000000000..0a51eef21
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_police.sh
@@ -0,0 +1,441 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test tc-police action.
+#
+# +---------------------------------+
+# | H1 (vrf) |
+# | + $h1 |
+# | | 192.0.2.1/24 |
+# | | |
+# | | default via 192.0.2.2 |
+# +----|----------------------------+
+# |
+# +----|----------------------------------------------------------------------+
+# | SW | |
+# | + $rp1 |
+# | 192.0.2.2/24 |
+# | |
+# | 198.51.100.2/24 203.0.113.2/24 |
+# | + $rp2 + $rp3 |
+# | | | |
+# +----|-----------------------------------------|----------------------------+
+# | |
+# +----|----------------------------+ +----|----------------------------+
+# | | default via 198.51.100.2 | | | default via 203.0.113.2 |
+# | | | | | |
+# | | 198.51.100.1/24 | | | 203.0.113.1/24 |
+# | + $h2 | | + $h3 |
+# | H2 (vrf) | | H3 (vrf) |
+# +---------------------------------+ +---------------------------------+
+
+ALL_TESTS="
+ police_rx_test
+ police_tx_test
+ police_shared_test
+ police_rx_mirror_test
+ police_tx_mirror_test
+ police_pps_rx_test
+ police_pps_tx_test
+ police_mtu_rx_test
+ police_mtu_tx_test
+"
+NUM_NETIFS=6
+source tc_common.sh
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24
+
+ ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+ ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+ simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 198.51.100.1/24
+
+ ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+
+ tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+
+ ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+ simple_if_fini $h2 198.51.100.1/24
+}
+
+h3_create()
+{
+ simple_if_init $h3 203.0.113.1/24
+
+ ip -4 route add default vrf v$h3 nexthop via 203.0.113.2
+
+ tc qdisc add dev $h3 clsact
+}
+
+h3_destroy()
+{
+ tc qdisc del dev $h3 clsact
+
+ ip -4 route del default vrf v$h3 nexthop via 203.0.113.2
+
+ simple_if_fini $h3 203.0.113.1/24
+}
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link set dev $rp2 up
+ ip link set dev $rp3 up
+
+ __addr_add_del $rp1 add 192.0.2.2/24
+ __addr_add_del $rp2 add 198.51.100.2/24
+ __addr_add_del $rp3 add 203.0.113.2/24
+
+ tc qdisc add dev $rp1 clsact
+ tc qdisc add dev $rp2 clsact
+}
+
+router_destroy()
+{
+ tc qdisc del dev $rp2 clsact
+ tc qdisc del dev $rp1 clsact
+
+ __addr_add_del $rp3 del 203.0.113.2/24
+ __addr_add_del $rp2 del 198.51.100.2/24
+ __addr_add_del $rp1 del 192.0.2.2/24
+
+ ip link set dev $rp3 down
+ ip link set dev $rp2 down
+ ip link set dev $rp1 down
+}
+
+police_common_test()
+{
+ local test_name=$1; shift
+
+ RET=0
+
+ # Rule to measure bandwidth on ingress of $h2
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action drop
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=54321 -p 1000 -c 0 -q &
+
+ local t0=$(tc_rule_stats_get $h2 1 ingress .bytes)
+ sleep 10
+ local t1=$(tc_rule_stats_get $h2 1 ingress .bytes)
+
+ local er=$((80 * 1000 * 1000))
+ local nr=$(rate $t0 $t1 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-10 <= nr_pct && nr_pct <= 10))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+ log_test "$test_name"
+
+ { kill %% && wait %%; } 2>/dev/null
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_rx_test()
+{
+ # Rule to police traffic destined to $h2 on ingress of $rp1
+ tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police rate 80mbit burst 16k conform-exceed drop/ok
+
+ police_common_test "police on rx"
+
+ tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_tx_test()
+{
+ # Rule to police traffic destined to $h2 on egress of $rp2
+ tc filter add dev $rp2 egress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police rate 80mbit burst 16k conform-exceed drop/ok
+
+ police_common_test "police on tx"
+
+ tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+}
+
+police_shared_common_test()
+{
+ local dport=$1; shift
+ local test_name=$1; shift
+
+ RET=0
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=$dport -p 1000 -c 0 -q &
+
+ local t0=$(tc_rule_stats_get $h2 1 ingress .bytes)
+ sleep 10
+ local t1=$(tc_rule_stats_get $h2 1 ingress .bytes)
+
+ local er=$((80 * 1000 * 1000))
+ local nr=$(rate $t0 $t1 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-10 <= nr_pct && nr_pct <= 10))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+ log_test "$test_name"
+
+ { kill %% && wait %%; } 2>/dev/null
+}
+
+police_shared_test()
+{
+ # Rule to measure bandwidth on ingress of $h2
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp src_port 12345 \
+ action drop
+
+ # Rule to police traffic destined to $h2 on ingress of $rp1
+ tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police rate 80mbit burst 16k conform-exceed drop/ok \
+ index 10
+
+ # Rule to police a different flow destined to $h2 on egress of $rp2
+ # using same policer
+ tc filter add dev $rp2 egress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 22222 \
+ action police index 10
+
+ police_shared_common_test 54321 "police with shared policer - rx"
+
+ police_shared_common_test 22222 "police with shared policer - tx"
+
+ tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+ tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_mirror_common_test()
+{
+ local pol_if=$1; shift
+ local dir=$1; shift
+ local test_name=$1; shift
+
+ RET=0
+
+ # Rule to measure bandwidth on ingress of $h2
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action drop
+
+ # Rule to measure bandwidth of mirrored traffic on ingress of $h3
+ tc filter add dev $h3 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action drop
+
+ # Rule to police traffic destined to $h2 and mirror to $h3
+ tc filter add dev $pol_if $dir protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police rate 80mbit burst 16k conform-exceed drop/pipe \
+ action mirred egress mirror dev $rp3
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=54321 -p 1000 -c 0 -q &
+
+ local t0=$(tc_rule_stats_get $h2 1 ingress .bytes)
+ sleep 10
+ local t1=$(tc_rule_stats_get $h2 1 ingress .bytes)
+
+ local er=$((80 * 1000 * 1000))
+ local nr=$(rate $t0 $t1 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-10 <= nr_pct && nr_pct <= 10))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+ local t0=$(tc_rule_stats_get $h3 1 ingress .bytes)
+ sleep 10
+ local t1=$(tc_rule_stats_get $h3 1 ingress .bytes)
+
+ local er=$((80 * 1000 * 1000))
+ local nr=$(rate $t0 $t1 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-10 <= nr_pct && nr_pct <= 10))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+ log_test "$test_name"
+
+ { kill %% && wait %%; } 2>/dev/null
+ tc filter del dev $pol_if $dir protocol ip pref 1 handle 101 flower
+ tc filter del dev $h3 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_rx_mirror_test()
+{
+ police_mirror_common_test $rp1 ingress "police rx and mirror"
+}
+
+police_tx_mirror_test()
+{
+ police_mirror_common_test $rp2 egress "police tx and mirror"
+}
+
+police_pps_common_test()
+{
+ local test_name=$1; shift
+
+ RET=0
+
+ # Rule to measure bandwidth on ingress of $h2
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action drop
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=54321 -p 1000 -c 0 -q &
+
+ local t0=$(tc_rule_stats_get $h2 1 ingress .packets)
+ sleep 10
+ local t1=$(tc_rule_stats_get $h2 1 ingress .packets)
+
+ local er=$((2000))
+ local nr=$(packets_rate $t0 $t1 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-10 <= nr_pct && nr_pct <= 10))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+ log_test "$test_name"
+
+ { kill %% && wait %%; } 2>/dev/null
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_pps_rx_test()
+{
+ # Rule to police traffic destined to $h2 on ingress of $rp1
+ tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police pkts_rate 2000 pkts_burst 400 conform-exceed drop/ok
+
+ police_pps_common_test "police pps on rx"
+
+ tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_pps_tx_test()
+{
+ # Rule to police traffic destined to $h2 on egress of $rp2
+ tc filter add dev $rp2 egress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police pkts_rate 2000 pkts_burst 400 conform-exceed drop/ok
+
+ police_pps_common_test "police pps on tx"
+
+ tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+}
+
+police_mtu_common_test() {
+ RET=0
+
+ local test_name=$1; shift
+ local dev=$1; shift
+ local direction=$1; shift
+
+ tc filter add dev $dev $direction protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police mtu 1042 conform-exceed drop/ok
+
+ # to count "conform" packets
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action drop
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=54321 -p 1001 -c 10 -q
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=54321 -p 1000 -c 3 -q
+
+ tc_check_packets "dev $dev $direction" 101 13
+ check_err $? "wrong packet counter"
+
+ # "exceed" packets
+ local overlimits_t0=$(tc_rule_stats_get ${dev} 1 ${direction} .overlimits)
+ test ${overlimits_t0} = 10
+ check_err $? "wrong overlimits, expected 10 got ${overlimits_t0}"
+
+ # "conform" packets
+ tc_check_packets "dev $h2 ingress" 101 3
+ check_err $? "forwarding error"
+
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $dev $direction protocol ip pref 1 handle 101 flower
+
+ log_test "$test_name"
+}
+
+police_mtu_rx_test()
+{
+ police_mtu_common_test "police mtu (rx)" $rp1 ingress
+}
+
+police_mtu_tx_test()
+{
+ police_mtu_common_test "police mtu (tx)" $rp2 egress
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ rp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ forwarding_enable
+
+ h1_create
+ h2_create
+ h3_create
+ router_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ router_destroy
+ h3_destroy
+ h2_destroy
+ h1_destroy
+
+ forwarding_restore
+ vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 18:43:58 +0000