FILE
gre_multipath_nh.sh
File preview with syntax highlighting.
linux-6.19.14/tools/testing/selftests/net/forwarding/gre_multipath_nh.sh
1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4# Test traffic distribution when a wECMP route forwards traffic to two GRE 5# tunnels. 6# 7# +-------------------------+ 8# | H1 | 9# | $h1 + | 10# | 192.0.2.1/28 | | 11# | 2001:db8:1::1/64 | | 12# +-------------------|-----+ 13# | 14# +-------------------|------------------------+ 15# | SW1 | | 16# | $ol1 + | 17# | 192.0.2.2/28 | 18# | 2001:db8:1::2/64 | 19# | | 20# | + g1a (gre) + g1b (gre) | 21# | loc=192.0.2.65 loc=192.0.2.81 | 22# | rem=192.0.2.66 --. rem=192.0.2.82 --. | 23# | tos=inherit | tos=inherit | | 24# | .------------------' | | 25# | | .------------------' | 26# | v v | 27# | + $ul1.111 (vlan) + $ul1.222 (vlan) | 28# | | 192.0.2.129/28 | 192.0.2.145/28 | 29# | \ / | 30# | \________________/ | 31# | | | 32# | + $ul1 | 33# +------------|-------------------------------+ 34# | 35# +------------|-------------------------------+ 36# | SW2 + $ul2 | 37# | _______|________ | 38# | / \ | 39# | / \ | 40# | + $ul2.111 (vlan) + $ul2.222 (vlan) | 41# | ^ 192.0.2.130/28 ^ 192.0.2.146/28 | 42# | | | | 43# | | '------------------. | 44# | '------------------. | | 45# | + g2a (gre) | + g2b (gre) | | 46# | loc=192.0.2.66 | loc=192.0.2.82 | | 47# | rem=192.0.2.65 --' rem=192.0.2.81 --' | 48# | tos=inherit tos=inherit | 49# | | 50# | $ol2 + | 51# | 192.0.2.17/28 | | 52# | 2001:db8:2::1/64 | | 53# +-------------------|------------------------+ 54# | 55# +-------------------|-----+ 56# | H2 | | 57# | $h2 + | 58# | 192.0.2.18/28 | 59# | 2001:db8:2::2/64 | 60# +-------------------------+ 61 62ALL_TESTS=" 63 ping_ipv4 64 ping_ipv6 65 multipath_ipv4 66 multipath_ipv6 67" 68 69NUM_NETIFS=6 70source lib.sh 71 72h1_create() 73{ 74 simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64 75 ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2 76 ip route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2 77} 78 79h1_destroy() 80{ 81 ip route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2 82 ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2 83 simple_if_fini $h1 192.0.2.1/28 84} 85 86sw1_create() 87{ 88 simple_if_init $ol1 192.0.2.2/28 2001:db8:1::2/64 89 __simple_if_init $ul1 v$ol1 90 vlan_create $ul1 111 v$ol1 192.0.2.129/28 91 vlan_create $ul1 222 v$ol1 192.0.2.145/28 92 93 tunnel_create g1a gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1 94 __simple_if_init g1a v$ol1 192.0.2.65/32 95 ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130 96 97 tunnel_create g1b gre 192.0.2.81 192.0.2.82 tos inherit dev v$ol1 98 __simple_if_init g1b v$ol1 192.0.2.81/32 99 ip route add vrf v$ol1 192.0.2.82/32 via 192.0.2.146 100 101 ip -6 nexthop add id 101 dev g1a 102 ip -6 nexthop add id 102 dev g1b 103 ip nexthop add id 103 group 101/102 104 105 ip route add vrf v$ol1 192.0.2.16/28 nhid 103 106 ip route add vrf v$ol1 2001:db8:2::/64 nhid 103 107} 108 109sw1_destroy() 110{ 111 ip route del vrf v$ol1 2001:db8:2::/64 112 ip route del vrf v$ol1 192.0.2.16/28 113 114 ip nexthop del id 103 115 ip -6 nexthop del id 102 116 ip -6 nexthop del id 101 117 118 ip route del vrf v$ol1 192.0.2.82/32 via 192.0.2.146 119 __simple_if_fini g1b 192.0.2.81/32 120 tunnel_destroy g1b 121 122 ip route del vrf v$ol1 192.0.2.66/32 via 192.0.2.130 123 __simple_if_fini g1a 192.0.2.65/32 124 tunnel_destroy g1a 125 126 vlan_destroy $ul1 222 127 vlan_destroy $ul1 111 128 __simple_if_fini $ul1 129 simple_if_fini $ol1 192.0.2.2/28 2001:db8:1::2/64 130} 131 132sw2_create() 133{ 134 simple_if_init $ol2 192.0.2.17/28 2001:db8:2::1/64 135 __simple_if_init $ul2 v$ol2 136 vlan_create $ul2 111 v$ol2 192.0.2.130/28 137 vlan_create $ul2 222 v$ol2 192.0.2.146/28 138 139 tunnel_create g2a gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol2 140 __simple_if_init g2a v$ol2 192.0.2.66/32 141 ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129 142 143 tunnel_create g2b gre 192.0.2.82 192.0.2.81 tos inherit dev v$ol2 144 __simple_if_init g2b v$ol2 192.0.2.82/32 145 ip route add vrf v$ol2 192.0.2.81/32 via 192.0.2.145 146 147 ip -6 nexthop add id 201 dev g2a 148 ip -6 nexthop add id 202 dev g2b 149 ip nexthop add id 203 group 201/202 150 151 ip route add vrf v$ol2 192.0.2.0/28 nhid 203 152 ip route add vrf v$ol2 2001:db8:1::/64 nhid 203 153 154 tc qdisc add dev $ul2 clsact 155 tc filter add dev $ul2 ingress pref 111 prot 802.1Q \ 156 flower vlan_id 111 action pass 157 tc filter add dev $ul2 ingress pref 222 prot 802.1Q \ 158 flower vlan_id 222 action pass 159} 160 161sw2_destroy() 162{ 163 tc qdisc del dev $ul2 clsact 164 165 ip route del vrf v$ol2 2001:db8:1::/64 166 ip route del vrf v$ol2 192.0.2.0/28 167 168 ip nexthop del id 203 169 ip -6 nexthop del id 202 170 ip -6 nexthop del id 201 171 172 ip route del vrf v$ol2 192.0.2.81/32 via 192.0.2.145 173 __simple_if_fini g2b 192.0.2.82/32 174 tunnel_destroy g2b 175 176 ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129 177 __simple_if_fini g2a 192.0.2.66/32 178 tunnel_destroy g2a 179 180 vlan_destroy $ul2 222 181 vlan_destroy $ul2 111 182 __simple_if_fini $ul2 183 simple_if_fini $ol2 192.0.2.17/28 2001:db8:2::1/64 184} 185 186h2_create() 187{ 188 simple_if_init $h2 192.0.2.18/28 2001:db8:2::2/64 189 ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17 190 ip route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1 191} 192 193h2_destroy() 194{ 195 ip route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1 196 ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17 197 simple_if_fini $h2 192.0.2.18/28 2001:db8:2::2/64 198} 199 200setup_prepare() 201{ 202 h1=${NETIFS[p1]} 203 ol1=${NETIFS[p2]} 204 205 ul1=${NETIFS[p3]} 206 ul2=${NETIFS[p4]} 207 208 ol2=${NETIFS[p5]} 209 h2=${NETIFS[p6]} 210 211 vrf_prepare 212 h1_create 213 sw1_create 214 sw2_create 215 h2_create 216 217 forwarding_enable 218} 219 220cleanup() 221{ 222 pre_cleanup 223 224 forwarding_restore 225 226 h2_destroy 227 sw2_destroy 228 sw1_destroy 229 h1_destroy 230 vrf_cleanup 231} 232 233multipath4_test() 234{ 235 local what=$1; shift 236 local weight1=$1; shift 237 local weight2=$1; shift 238 239 sysctl_set net.ipv4.fib_multipath_hash_policy 1 240 ip nexthop replace id 103 group 101,$weight1/102,$weight2 241 242 local t0_111=$(tc_rule_stats_get $ul2 111 ingress) 243 local t0_222=$(tc_rule_stats_get $ul2 222 ingress) 244 245 ip vrf exec v$h1 \ 246 $MZ $h1 -q -p 64 -A 192.0.2.1 -B 192.0.2.18 \ 247 -d $MZ_DELAY -t udp "sp=1024,dp=0-32768" 248 249 local t1_111=$(tc_rule_stats_get $ul2 111 ingress) 250 local t1_222=$(tc_rule_stats_get $ul2 222 ingress) 251 252 local d111=$((t1_111 - t0_111)) 253 local d222=$((t1_222 - t0_222)) 254 multipath_eval "$what" $weight1 $weight2 $d111 $d222 255 256 ip nexthop replace id 103 group 101/102 257 sysctl_restore net.ipv4.fib_multipath_hash_policy 258} 259 260multipath6_test() 261{ 262 local what=$1; shift 263 local weight1=$1; shift 264 local weight2=$1; shift 265 266 sysctl_set net.ipv6.fib_multipath_hash_policy 1 267 ip nexthop replace id 103 group 101,$weight1/102,$weight2 268 269 local t0_111=$(tc_rule_stats_get $ul2 111 ingress) 270 local t0_222=$(tc_rule_stats_get $ul2 222 ingress) 271 272 ip vrf exec v$h1 \ 273 $MZ $h1 -6 -q -p 64 -A 2001:db8:1::1 -B 2001:db8:2::2 \ 274 -d $MZ_DELAY -t udp "sp=1024,dp=0-32768" 275 276 local t1_111=$(tc_rule_stats_get $ul2 111 ingress) 277 local t1_222=$(tc_rule_stats_get $ul2 222 ingress) 278 279 local d111=$((t1_111 - t0_111)) 280 local d222=$((t1_222 - t0_222)) 281 multipath_eval "$what" $weight1 $weight2 $d111 $d222 282 283 ip nexthop replace id 103 group 101/102 284 sysctl_restore net.ipv6.fib_multipath_hash_policy 285} 286 287ping_ipv4() 288{ 289 ping_test $h1 192.0.2.18 290} 291 292ping_ipv6() 293{ 294 ping6_test $h1 2001:db8:2::2 295} 296 297multipath_ipv4() 298{ 299 log_info "Running IPv4 multipath tests" 300 multipath4_test "ECMP" 1 1 301 multipath4_test "Weighted MP 2:1" 2 1 302 multipath4_test "Weighted MP 11:45" 11 45 303} 304 305multipath_ipv6() 306{ 307 log_info "Running IPv6 multipath tests" 308 multipath6_test "ECMP" 1 1 309 multipath6_test "Weighted MP 2:1" 2 1 310 multipath6_test "Weighted MP 11:45" 11 45 311} 312 313trap cleanup EXIT 314 315setup_prepare 316setup_wait 317tests_run 318 319exit $EXIT_STATUS
~/
Read-only file preview.