308 lines · bash
1#!/bin/bash2# SPDX-License-Identifier: GPL-2.03 4ALL_TESTS="ping_ipv4 ping_ipv6 multipath_test"5NUM_NETIFS=86source lib.sh7 8h1_create()9{10 vrf_create "vrf-h1"11 ip link set dev $h1 master vrf-h112 13 ip link set dev vrf-h1 up14 ip link set dev $h1 up15 16 ip address add 192.0.2.2/24 dev $h117 ip address add 2001:db8:1::2/64 dev $h118 19 ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.120 ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::121}22 23h1_destroy()24{25 ip route del 2001:db8:2::/64 vrf vrf-h126 ip route del 198.51.100.0/24 vrf vrf-h127 28 ip address del 2001:db8:1::2/64 dev $h129 ip address del 192.0.2.2/24 dev $h130 31 ip link set dev $h1 down32 vrf_destroy "vrf-h1"33}34 35h2_create()36{37 vrf_create "vrf-h2"38 ip link set dev $h2 master vrf-h239 40 ip link set dev vrf-h2 up41 ip link set dev $h2 up42 43 ip address add 198.51.100.2/24 dev $h244 ip address add 2001:db8:2::2/64 dev $h245 46 ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.147 ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::148}49 50h2_destroy()51{52 ip route del 2001:db8:1::/64 vrf vrf-h253 ip route del 192.0.2.0/24 vrf vrf-h254 55 ip address del 2001:db8:2::2/64 dev $h256 ip address del 198.51.100.2/24 dev $h257 58 ip link set dev $h2 down59 vrf_destroy "vrf-h2"60}61 62router1_create()63{64 vrf_create "vrf-r1"65 ip link set dev $rp11 master vrf-r166 ip link set dev $rp12 master vrf-r167 ip link set dev $rp13 master vrf-r168 69 ip link set dev vrf-r1 up70 ip link set dev $rp11 up71 ip link set dev $rp12 up72 ip link set dev $rp13 up73 74 ip address add 192.0.2.1/24 dev $rp1175 ip address add 2001:db8:1::1/64 dev $rp1176 77 ip address add 169.254.2.12/24 dev $rp1278 ip address add fe80:2::12/64 dev $rp1279 80 ip address add 169.254.3.13/24 dev $rp1381 ip address add fe80:3::13/64 dev $rp1382 83 ip route add 198.51.100.0/24 vrf vrf-r1 \84 nexthop via 169.254.2.22 dev $rp12 \85 nexthop via 169.254.3.23 dev $rp1386 ip route add 2001:db8:2::/64 vrf vrf-r1 \87 nexthop via fe80:2::22 dev $rp12 \88 nexthop via fe80:3::23 dev $rp1389}90 91router1_destroy()92{93 ip route del 2001:db8:2::/64 vrf vrf-r194 ip route del 198.51.100.0/24 vrf vrf-r195 96 ip address del fe80:3::13/64 dev $rp1397 ip address del 169.254.3.13/24 dev $rp1398 99 ip address del fe80:2::12/64 dev $rp12100 ip address del 169.254.2.12/24 dev $rp12101 102 ip address del 2001:db8:1::1/64 dev $rp11103 ip address del 192.0.2.1/24 dev $rp11104 105 ip link set dev $rp13 down106 ip link set dev $rp12 down107 ip link set dev $rp11 down108 109 vrf_destroy "vrf-r1"110}111 112router2_create()113{114 vrf_create "vrf-r2"115 ip link set dev $rp21 master vrf-r2116 ip link set dev $rp22 master vrf-r2117 ip link set dev $rp23 master vrf-r2118 119 ip link set dev vrf-r2 up120 ip link set dev $rp21 up121 ip link set dev $rp22 up122 ip link set dev $rp23 up123 124 ip address add 198.51.100.1/24 dev $rp21125 ip address add 2001:db8:2::1/64 dev $rp21126 127 ip address add 169.254.2.22/24 dev $rp22128 ip address add fe80:2::22/64 dev $rp22129 130 ip address add 169.254.3.23/24 dev $rp23131 ip address add fe80:3::23/64 dev $rp23132 133 ip route add 192.0.2.0/24 vrf vrf-r2 \134 nexthop via 169.254.2.12 dev $rp22 \135 nexthop via 169.254.3.13 dev $rp23136 ip route add 2001:db8:1::/64 vrf vrf-r2 \137 nexthop via fe80:2::12 dev $rp22 \138 nexthop via fe80:3::13 dev $rp23139}140 141router2_destroy()142{143 ip route del 2001:db8:1::/64 vrf vrf-r2144 ip route del 192.0.2.0/24 vrf vrf-r2145 146 ip address del fe80:3::23/64 dev $rp23147 ip address del 169.254.3.23/24 dev $rp23148 149 ip address del fe80:2::22/64 dev $rp22150 ip address del 169.254.2.22/24 dev $rp22151 152 ip address del 2001:db8:2::1/64 dev $rp21153 ip address del 198.51.100.1/24 dev $rp21154 155 ip link set dev $rp23 down156 ip link set dev $rp22 down157 ip link set dev $rp21 down158 159 vrf_destroy "vrf-r2"160}161 162multipath4_test()163{164 local desc="$1"165 local weight_rp12=$2166 local weight_rp13=$3167 local t0_rp12 t0_rp13 t1_rp12 t1_rp13168 local packets_rp12 packets_rp13169 170 # Transmit multiple flows from h1 to h2 and make sure they are171 # distributed between both multipath links (rp12 and rp13)172 # according to the configured weights.173 sysctl_set net.ipv4.fib_multipath_hash_policy 1174 ip route replace 198.51.100.0/24 vrf vrf-r1 \175 nexthop via 169.254.2.22 dev $rp12 weight $weight_rp12 \176 nexthop via 169.254.3.23 dev $rp13 weight $weight_rp13177 178 t0_rp12=$(link_stats_tx_packets_get $rp12)179 t0_rp13=$(link_stats_tx_packets_get $rp13)180 181 ip vrf exec vrf-h1 $MZ $h1 -q -p 64 -A 192.0.2.2 -B 198.51.100.2 \182 -d $MZ_DELAY -t udp "sp=1024,dp=0-32768"183 sleep 1184 185 t1_rp12=$(link_stats_tx_packets_get $rp12)186 t1_rp13=$(link_stats_tx_packets_get $rp13)187 188 let "packets_rp12 = $t1_rp12 - $t0_rp12"189 let "packets_rp13 = $t1_rp13 - $t0_rp13"190 multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13191 192 # Restore settings.193 ip route replace 198.51.100.0/24 vrf vrf-r1 \194 nexthop via 169.254.2.22 dev $rp12 \195 nexthop via 169.254.3.23 dev $rp13196 sysctl_restore net.ipv4.fib_multipath_hash_policy197}198 199multipath6_test()200{201 local desc="$1"202 local weight_rp12=$2203 local weight_rp13=$3204 local t0_rp12 t0_rp13 t1_rp12 t1_rp13205 local packets_rp12 packets_rp13206 207 # Transmit multiple flows from h1 to h2 and make sure they are208 # distributed between both multipath links (rp12 and rp13)209 # according to the configured weights.210 sysctl_set net.ipv6.fib_multipath_hash_policy 1211 212 ip route replace 2001:db8:2::/64 vrf vrf-r1 \213 nexthop via fe80:2::22 dev $rp12 weight $weight_rp12 \214 nexthop via fe80:3::23 dev $rp13 weight $weight_rp13215 216 t0_rp12=$(link_stats_tx_packets_get $rp12)217 t0_rp13=$(link_stats_tx_packets_get $rp13)218 219 $MZ $h1 -6 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \220 -d $MZ_DELAY -t udp "sp=1024,dp=0-32768"221 sleep 1222 223 t1_rp12=$(link_stats_tx_packets_get $rp12)224 t1_rp13=$(link_stats_tx_packets_get $rp13)225 226 let "packets_rp12 = $t1_rp12 - $t0_rp12"227 let "packets_rp13 = $t1_rp13 - $t0_rp13"228 multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13229 230 ip route replace 2001:db8:2::/64 vrf vrf-r1 \231 nexthop via fe80:2::22 dev $rp12 \232 nexthop via fe80:3::23 dev $rp13233 234 sysctl_restore net.ipv6.fib_multipath_hash_policy235}236 237multipath_test()238{239 log_info "Running IPv4 multipath tests"240 multipath4_test "ECMP" 1 1241 multipath4_test "Weighted MP 2:1" 2 1242 multipath4_test "Weighted MP 11:45" 11 45243 244 log_info "Running IPv6 multipath tests"245 multipath6_test "ECMP" 1 1246 multipath6_test "Weighted MP 2:1" 2 1247 multipath6_test "Weighted MP 11:45" 11 45248}249 250setup_prepare()251{252 h1=${NETIFS[p1]}253 rp11=${NETIFS[p2]}254 255 rp12=${NETIFS[p3]}256 rp22=${NETIFS[p4]}257 258 rp13=${NETIFS[p5]}259 rp23=${NETIFS[p6]}260 261 rp21=${NETIFS[p7]}262 h2=${NETIFS[p8]}263 264 vrf_prepare265 266 h1_create267 h2_create268 269 router1_create270 router2_create271 272 forwarding_enable273}274 275cleanup()276{277 pre_cleanup278 279 forwarding_restore280 281 router2_destroy282 router1_destroy283 284 h2_destroy285 h1_destroy286 287 vrf_cleanup288}289 290ping_ipv4()291{292 ping_test $h1 198.51.100.2293}294 295ping_ipv6()296{297 ping6_test $h1 2001:db8:2::2298}299 300trap cleanup EXIT301 302setup_prepare303setup_wait304 305tests_run306 307exit $EXIT_STATUS308