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selftests: forwarding: Add a forwarding test for pedit munge dsfield
Add a test that runs packets with dsfield set, and test that pedit adjusts the DSCP or ECN parts or the whole field. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata
David S. Miller
parent
9b4b16bba2
commit
226657ba23
238
tools/testing/selftests/net/forwarding/pedit_dsfield.sh
Executable file
238
tools/testing/selftests/net/forwarding/pedit_dsfield.sh
Executable file
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on
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# egress of $swp2, the traffic is acted upon by a pedit action. An ingress
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# filter installed on $h2 verifies that the packet looks like expected.
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#
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# +----------------------+ +----------------------+
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# | H1 | | H2 |
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# | + $h1 | | $h2 + |
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# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
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# +----|-----------------+ +----------------|-----+
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# | |
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# +----|----------------------------------------------------------------|-----+
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# | SW | | |
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# | +-|----------------------------------------------------------------|-+ |
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# | | + $swp1 BR $swp2 + | |
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# | +--------------------------------------------------------------------+ |
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# +---------------------------------------------------------------------------+
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ALL_TESTS="
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ping_ipv4
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test_ip_dsfield
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test_ip_dscp
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test_ip_ecn
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test_ip_dscp_ecn
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"
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NUM_NETIFS=4
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source lib.sh
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source tc_common.sh
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: ${HIT_TIMEOUT:=2000} # ms
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h1_create()
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{
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simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
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}
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h1_destroy()
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{
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simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
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}
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h2_create()
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{
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simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
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tc qdisc add dev $h2 clsact
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}
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h2_destroy()
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{
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tc qdisc del dev $h2 clsact
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simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
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}
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switch_create()
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{
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ip link add name br1 up type bridge vlan_filtering 1
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ip link set dev $swp1 master br1
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ip link set dev $swp1 up
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ip link set dev $swp2 master br1
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ip link set dev $swp2 up
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tc qdisc add dev $swp1 clsact
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tc qdisc add dev $swp2 clsact
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}
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switch_destroy()
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{
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tc qdisc del dev $swp2 clsact
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tc qdisc del dev $swp1 clsact
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ip link set dev $swp2 nomaster
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ip link set dev $swp1 nomaster
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ip link del dev br1
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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swp1=${NETIFS[p2]}
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swp2=${NETIFS[p3]}
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h2=${NETIFS[p4]}
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h2mac=$(mac_get $h2)
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vrf_prepare
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h1_create
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h2_create
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switch_create
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}
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cleanup()
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{
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pre_cleanup
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switch_destroy
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h2_destroy
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h1_destroy
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vrf_cleanup
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}
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ping_ipv4()
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{
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ping_test $h1 192.0.2.2
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}
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do_test_pedit_dsfield_common()
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{
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local pedit_locus=$1; shift
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local pedit_action=$1; shift
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local mz_flags=$1; shift
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RET=0
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# TOS 125: DSCP 31, ECN 1. Used for testing that the relevant part is
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# overwritten when zero is selected.
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$MZ $mz_flags $h1 -c 10 -d 20msec -p 100 \
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-a own -b $h2mac -q -t tcp tos=0x7d,sp=54321,dp=12345
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local pkts
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pkts=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= 10" \
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tc_rule_handle_stats_get "dev $h2 ingress" 101)
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check_err $? "Expected to get 10 packets, but got $pkts."
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log_test "$pedit_locus pedit $pedit_action"
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}
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do_test_pedit_dsfield()
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{
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local pedit_locus=$1; shift
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local pedit_action=$1; shift
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local match_prot=$1; shift
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local match_flower=$1; shift
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local mz_flags=$1; shift
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local saddr=$1; shift
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local daddr=$1; shift
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tc filter add $pedit_locus handle 101 pref 1 \
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flower action pedit ex munge $pedit_action
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tc filter add dev $h2 ingress handle 101 pref 1 prot $match_prot \
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flower skip_hw $match_flower action pass
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do_test_pedit_dsfield_common "$pedit_locus" "$pedit_action" "$mz_flags"
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tc filter del dev $h2 ingress pref 1
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tc filter del $pedit_locus pref 1
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}
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do_test_ip_dsfield()
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{
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local locus=$1; shift
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local dsfield
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for dsfield in 0 1 2 3 128 252 253 254 255; do
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do_test_pedit_dsfield "$locus" \
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"ip dsfield set $dsfield" \
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ip "ip_tos $dsfield" \
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"-A 192.0.2.1 -B 192.0.2.2"
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done
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}
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test_ip_dsfield()
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{
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do_test_ip_dsfield "dev $swp1 ingress"
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do_test_ip_dsfield "dev $swp2 egress"
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}
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do_test_ip_dscp()
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{
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local locus=$1; shift
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local dscp
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for dscp in 0 1 2 3 32 61 62 63; do
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do_test_pedit_dsfield "$locus" \
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"ip dsfield set $((dscp << 2)) retain 0xfc" \
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ip "ip_tos $(((dscp << 2) | 1))" \
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"-A 192.0.2.1 -B 192.0.2.2"
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done
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}
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test_ip_dscp()
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{
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do_test_ip_dscp "dev $swp1 ingress"
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do_test_ip_dscp "dev $swp2 egress"
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}
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do_test_ip_ecn()
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{
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local locus=$1; shift
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local ecn
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for ecn in 0 1 2 3; do
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do_test_pedit_dsfield "$locus" \
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"ip dsfield set $ecn retain 0x03" \
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ip "ip_tos $((124 | $ecn))" \
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"-A 192.0.2.1 -B 192.0.2.2"
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done
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}
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test_ip_ecn()
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{
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do_test_ip_ecn "dev $swp1 ingress"
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do_test_ip_ecn "dev $swp2 egress"
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}
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do_test_ip_dscp_ecn()
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{
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local locus=$1; shift
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tc filter add $locus handle 101 pref 1 \
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flower action pedit ex munge ip dsfield set 124 retain 0xfc \
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action pedit ex munge ip dsfield set 1 retain 0x03
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tc filter add dev $h2 ingress handle 101 pref 1 prot ip \
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flower skip_hw ip_tos 125 action pass
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do_test_pedit_dsfield_common "$locus" "set DSCP + set ECN" \
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"-A 192.0.2.1 -B 192.0.2.2"
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tc filter del dev $h2 ingress pref 1
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tc filter del $locus pref 1
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}
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test_ip_dscp_ecn()
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{
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do_test_ip_dscp_ecn "dev $swp1 ingress"
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do_test_ip_dscp_ecn "dev $swp2 egress"
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}
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trap cleanup EXIT
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setup_prepare
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setup_wait
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tests_run
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exit $EXIT_STATUS
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