1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4# Test VLAN classification after routing and verify that the order of 5# configuration does not impact switch behavior. Verify that {RIF, Port}->VID 6# mapping is added correctly for existing {Port, VID}->FID mapping and that 7# {RIF, Port}->VID mapping is added correctly for new {Port, VID}->FID mapping. 8 9# +-------------------+ +--------------------+ 10# | H1 | | H2 | 11# | | | | 12# | $h1.10 + | | + $h2.10 | 13# | 192.0.2.1/28 | | | | 192.0.2.3/28 | 14# | | | | | | 15# | $h1 + | | + $h2 | 16# +----------------|--+ +--|-----------------+ 17# | | 18# +----------------|-------------------------|-----------------+ 19# | SW $swp1 + + $swp2 | 20# | | | | 21# | +--------------|-------------------------|---------------+ | 22# | | $swp1.10 + + $swp2.10 | | 23# | | | | 24# | | br0 | | 25# | | 192.0.2.2/28 | | 26# | +--------------------------------------------------------+ | 27# | | 28# | $swp3.20 + | 29# | 192.0.2.17/28 | | 30# | | | 31# | $swp3 + | 32# +---------------|--------------------------------------------+ 33# | 34# +---------------|--+ 35# | $h3 + | 36# | | | 37# | $h3.20 + | 38# | 192.0.2.18/28 | 39# | | 40# | H3 | 41# +------------------+ 42 43lib_dir=$(dirname $0)/../../../net/forwarding 44 45ALL_TESTS=" 46 port_vid_map_rif 47 rif_port_vid_map 48" 49 50NUM_NETIFS=6 51source $lib_dir/lib.sh 52source $lib_dir/tc_common.sh 53source $lib_dir/devlink_lib.sh 54 55h1_create() 56{ 57 simple_if_init $h1 58 vlan_create $h1 10 v$h1 192.0.2.1/28 59 60 ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2 61} 62 63h1_destroy() 64{ 65 ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2 66 67 vlan_destroy $h1 10 68 simple_if_fini $h1 69} 70 71h2_create() 72{ 73 simple_if_init $h2 74 vlan_create $h2 10 v$h2 192.0.2.3/28 75} 76 77h2_destroy() 78{ 79 vlan_destroy $h2 10 80 simple_if_fini $h2 81} 82 83h3_create() 84{ 85 simple_if_init $h3 86 vlan_create $h3 20 v$h3 192.0.2.18/28 87 88 ip route add 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17 89} 90 91h3_destroy() 92{ 93 ip route del 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17 94 95 vlan_destroy $h3 20 96 simple_if_fini $h3 97} 98 99switch_create() 100{ 101 ip link set dev $swp1 up 102 tc qdisc add dev $swp1 clsact 103 104 ip link add dev br0 type bridge mcast_snooping 0 105 106 # By default, a link-local address is generated when netdevice becomes 107 # up. Adding an address to the bridge will cause creating a RIF for it. 108 # Prevent generating link-local address to be able to control when the 109 # RIF is added. 110 sysctl_set net.ipv6.conf.br0.addr_gen_mode 1 111 ip link set dev br0 up 112 113 ip link set dev $swp2 up 114 vlan_create $swp2 10 115 ip link set dev $swp2.10 master br0 116 117 ip link set dev $swp3 up 118 vlan_create $swp3 20 "" 192.0.2.17/28 119 120 # Replace neighbor to avoid 1 packet which is forwarded in software due 121 # to "unresolved neigh". 122 ip neigh replace dev $swp3.20 192.0.2.18 lladdr $(mac_get $h3.20) 123} 124 125switch_destroy() 126{ 127 vlan_destroy $swp3 20 128 ip link set dev $swp3 down 129 130 ip link set dev $swp2.10 nomaster 131 vlan_destroy $swp2 10 132 ip link set dev $swp2 down 133 134 ip link set dev br0 down 135 sysctl_restore net.ipv6.conf.br0.addr_gen_mode 136 ip link del dev br0 137 138 tc qdisc del dev $swp1 clsact 139 ip link set dev $swp1 down 140} 141 142setup_prepare() 143{ 144 h1=${NETIFS[p1]} 145 swp1=${NETIFS[p2]} 146 147 swp2=${NETIFS[p3]} 148 h2=${NETIFS[p4]} 149 150 swp3=${NETIFS[p5]} 151 h3=${NETIFS[p6]} 152 153 vrf_prepare 154 forwarding_enable 155 156 h1_create 157 h2_create 158 h3_create 159 160 switch_create 161} 162 163cleanup() 164{ 165 pre_cleanup 166 167 switch_destroy 168 169 h3_destroy 170 h2_destroy 171 h1_destroy 172 173 forwarding_restore 174 vrf_cleanup 175} 176 177bridge_rif_add() 178{ 179 rifs_occ_t0=$(devlink_resource_occ_get rifs) 180 __addr_add_del br0 add 192.0.2.2/28 181 rifs_occ_t1=$(devlink_resource_occ_get rifs) 182 183 expected_rifs=$((rifs_occ_t0 + 1)) 184 185 [[ $expected_rifs -eq $rifs_occ_t1 ]] 186 check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used" 187 188 sleep 1 189} 190 191bridge_rif_del() 192{ 193 __addr_add_del br0 del 192.0.2.2/28 194} 195 196port_vid_map_rif() 197{ 198 RET=0 199 200 # First add {port, VID}->FID for swp1.10, then add a RIF and verify that 201 # packets get the correct VID after routing. 202 vlan_create $swp1 10 203 ip link set dev $swp1.10 master br0 204 bridge_rif_add 205 206 # Replace neighbor to avoid 1 packet which is forwarded in software due 207 # to "unresolved neigh". 208 ip neigh replace dev br0 192.0.2.1 lladdr $(mac_get $h1.10) 209 210 # The hardware matches on the first ethertype which is not VLAN, 211 # so the protocol should be IP. 212 tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \ 213 flower skip_sw dst_ip 192.0.2.1 action pass 214 215 ping_do $h1.10 192.0.2.18 216 check_err $? "Ping failed" 217 218 tc_check_at_least_x_packets "dev $swp1 egress" 101 10 219 check_err $? "Packets were not routed in hardware" 220 221 log_test "Add RIF for existing {port, VID}->FID mapping" 222 223 tc filter del dev $swp1 egress 224 225 bridge_rif_del 226 ip link set dev $swp1.10 nomaster 227 vlan_destroy $swp1 10 228} 229 230rif_port_vid_map() 231{ 232 RET=0 233 234 # First add an address to the bridge, which will create a RIF on top of 235 # it, then add a new {port, VID}->FID mapping and verify that packets 236 # get the correct VID after routing. 237 bridge_rif_add 238 vlan_create $swp1 10 239 ip link set dev $swp1.10 master br0 240 241 # Replace neighbor to avoid 1 packet which is forwarded in software due 242 # to "unresolved neigh". 243 ip neigh replace dev br0 192.0.2.1 lladdr $(mac_get $h1.10) 244 245 # The hardware matches on the first ethertype which is not VLAN, 246 # so the protocol should be IP. 247 tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \ 248 flower skip_sw dst_ip 192.0.2.1 action pass 249 250 ping_do $h1.10 192.0.2.18 251 check_err $? "Ping failed" 252 253 tc_check_at_least_x_packets "dev $swp1 egress" 101 10 254 check_err $? "Packets were not routed in hardware" 255 256 log_test "Add {port, VID}->FID mapping for FID with a RIF" 257 258 tc filter del dev $swp1 egress 259 260 ip link set dev $swp1.10 nomaster 261 vlan_destroy $swp1 10 262 bridge_rif_del 263} 264 265trap cleanup EXIT 266 267setup_prepare 268setup_wait 269 270tests_run 271 272exit $EXIT_STATUS 273