#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Test ipv6 stats on the incoming if when forwarding with VRF
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ALL_TESTS="
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ipv6_ping
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ipv6_in_too_big_err
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ipv6_in_hdr_err
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ipv6_in_addr_err
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ipv6_in_discard
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"
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NUM_NETIFS=4
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source lib.sh
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h1_create()
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{
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simple_if_init $h1 2001:1:1::2/64
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ip -6 route add vrf v$h1 2001:1:2::/64 via 2001:1:1::1
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}
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h1_destroy()
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{
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ip -6 route del vrf v$h1 2001:1:2::/64 via 2001:1:1::1
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simple_if_fini $h1 2001:1:1::2/64
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}
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router_create()
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{
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vrf_create router
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__simple_if_init $rtr1 router 2001:1:1::1/64
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__simple_if_init $rtr2 router 2001:1:2::1/64
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mtu_set $rtr2 1280
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}
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router_destroy()
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{
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mtu_restore $rtr2
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__simple_if_fini $rtr2 2001:1:2::1/64
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__simple_if_fini $rtr1 2001:1:1::1/64
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vrf_destroy router
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}
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h2_create()
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{
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simple_if_init $h2 2001:1:2::2/64
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ip -6 route add vrf v$h2 2001:1:1::/64 via 2001:1:2::1
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mtu_set $h2 1280
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}
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h2_destroy()
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{
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mtu_restore $h2
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ip -6 route del vrf v$h2 2001:1:1::/64 via 2001:1:2::1
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simple_if_fini $h2 2001:1:2::2/64
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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rtr1=${NETIFS[p2]}
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rtr2=${NETIFS[p3]}
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h2=${NETIFS[p4]}
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vrf_prepare
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h1_create
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router_create
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h2_create
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forwarding_enable
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}
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cleanup()
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{
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pre_cleanup
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forwarding_restore
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h2_destroy
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router_destroy
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h1_destroy
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vrf_cleanup
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}
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ipv6_in_too_big_err()
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{
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RET=0
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local t0=$(ipv6_stats_get $rtr1 Ip6InTooBigErrors)
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local vrf_name=$(master_name_get $h1)
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# Send too big packets
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ip vrf exec $vrf_name \
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$PING6 -s 1300 2001:1:2::2 -c 1 -w $PING_TIMEOUT &> /dev/null
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local t1=$(ipv6_stats_get $rtr1 Ip6InTooBigErrors)
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test "$((t1 - t0))" -ne 0
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check_err $?
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log_test "Ip6InTooBigErrors"
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}
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ipv6_in_hdr_err()
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{
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RET=0
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local t0=$(ipv6_stats_get $rtr1 Ip6InHdrErrors)
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local vrf_name=$(master_name_get $h1)
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# Send packets with hop limit 1, easiest with traceroute6 as some ping6
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# doesn't allow hop limit to be specified
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ip vrf exec $vrf_name \
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$TROUTE6 2001:1:2::2 &> /dev/null
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local t1=$(ipv6_stats_get $rtr1 Ip6InHdrErrors)
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test "$((t1 - t0))" -ne 0
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check_err $?
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log_test "Ip6InHdrErrors"
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}
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ipv6_in_addr_err()
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{
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RET=0
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local t0=$(ipv6_stats_get $rtr1 Ip6InAddrErrors)
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local vrf_name=$(master_name_get $h1)
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# Disable forwarding temporary while sending the packet
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sysctl -qw net.ipv6.conf.all.forwarding=0
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ip vrf exec $vrf_name \
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$PING6 2001:1:2::2 -c 1 -w $PING_TIMEOUT &> /dev/null
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sysctl -qw net.ipv6.conf.all.forwarding=1
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local t1=$(ipv6_stats_get $rtr1 Ip6InAddrErrors)
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test "$((t1 - t0))" -ne 0
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check_err $?
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log_test "Ip6InAddrErrors"
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}
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ipv6_in_discard()
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{
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RET=0
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local t0=$(ipv6_stats_get $rtr1 Ip6InDiscards)
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local vrf_name=$(master_name_get $h1)
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# Add a policy to discard
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ip xfrm policy add dst 2001:1:2::2/128 dir fwd action block
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ip vrf exec $vrf_name \
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$PING6 2001:1:2::2 -c 1 -w $PING_TIMEOUT &> /dev/null
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ip xfrm policy del dst 2001:1:2::2/128 dir fwd
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local t1=$(ipv6_stats_get $rtr1 Ip6InDiscards)
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test "$((t1 - t0))" -ne 0
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check_err $?
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log_test "Ip6InDiscards"
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}
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ipv6_ping()
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{
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RET=0
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ping6_test $h1 2001:1:2::2
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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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