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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 | #!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # Test devlink-trap tunnel drops and exceptions functionality over mlxsw. # Check all traps to make sure they are triggered under the right # conditions. # +--------------------+ # | H1 (vrf) | # | + $h1 | # | | 192.0.2.1/28 | # +----|---------------+ # | # +----|----------------------------------------------------------------------+ # | SW | | # | +--|--------------------------------------------------------------------+ | # | | + $swp1 BR1 (802.1d) | | # | | | | # | | + vx1 (vxlan) | | # | | local 192.0.2.17 | | # | | id 1000 dstport $VXPORT | | # | +-----------------------------------------------------------------------+ | # | | # | + $rp1 | # | | 192.0.2.17/28 | # +----|----------------------------------------------------------------------+ # | # +----|--------------------------------------------------------+ # | | VRF2 | # | + $rp2 | # | 192.0.2.18/28 | # | | # +-------------------------------------------------------------+ lib_dir=$(dirname $0)/../../../net/forwarding ALL_TESTS=" decap_error_test overlay_smac_is_mc_test " NUM_NETIFS=4 source $lib_dir/lib.sh source $lib_dir/tc_common.sh source $lib_dir/devlink_lib.sh : ${VXPORT:=4789} export VXPORT h1_create() { simple_if_init $h1 192.0.2.1/28 } h1_destroy() { simple_if_fini $h1 192.0.2.1/28 } switch_create() { ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0 # Make sure the bridge uses the MAC address of the local port and not # that of the VxLAN's device. ip link set dev br1 address $(mac_get $swp1) ip link set dev br1 up tc qdisc add dev $swp1 clsact ip link set dev $swp1 master br1 ip link set dev $swp1 up ip link add name vx1 type vxlan id 1000 local 192.0.2.17 \ dstport "$VXPORT" nolearning noudpcsum tos inherit ttl 100 ip link set dev vx1 master br1 ip link set dev vx1 up ip address add dev $rp1 192.0.2.17/28 ip link set dev $rp1 up } switch_destroy() { ip link set dev $rp1 down ip address del dev $rp1 192.0.2.17/28 ip link set dev vx1 down ip link set dev vx1 nomaster ip link del dev vx1 ip link set dev $swp1 down ip link set dev $swp1 nomaster tc qdisc del dev $swp1 clsact ip link set dev br1 down ip link del dev br1 } vrf2_create() { simple_if_init $rp2 192.0.2.18/28 } vrf2_destroy() { simple_if_fini $rp2 192.0.2.18/28 } setup_prepare() { h1=${NETIFS[p1]} swp1=${NETIFS[p2]} rp1=${NETIFS[p3]} rp2=${NETIFS[p4]} vrf_prepare forwarding_enable h1_create switch_create vrf2_create } cleanup() { pre_cleanup vrf2_destroy switch_destroy h1_destroy forwarding_restore vrf_cleanup } ecn_payload_get() { dest_mac=$(mac_get $h1) p=$(: )"08:"$( : VXLAN flags )"00:00:00:"$( : VXLAN reserved )"00:03:e8:"$( : VXLAN VNI : 1000 )"00:"$( : VXLAN reserved )"$dest_mac:"$( : ETH daddr )"00:00:00:00:00:00:"$( : ETH saddr )"08:00:"$( : ETH type )"45:"$( : IP version + IHL )"00:"$( : IP TOS )"00:14:"$( : IP total length )"00:00:"$( : IP identification )"20:00:"$( : IP flags + frag off )"40:"$( : IP TTL )"00:"$( : IP proto )"D6:E5:"$( : IP header csum )"c0:00:02:03:"$( : IP saddr: 192.0.2.3 )"c0:00:02:01:"$( : IP daddr: 192.0.2.1 ) echo $p } ecn_decap_test() { local trap_name="decap_error" local desc=$1; shift local ecn_desc=$1; shift local outer_tos=$1; shift local mz_pid RET=0 tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \ flower src_ip 192.0.2.3 dst_ip 192.0.2.1 action pass rp1_mac=$(mac_get $rp1) payload=$(ecn_payload_get) ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -b $rp1_mac -B 192.0.2.17 \ -t udp sp=12345,dp=$VXPORT,tos=$outer_tos,p=$payload -q & mz_pid=$! devlink_trap_exception_test $trap_name tc_check_packets "dev $swp1 egress" 101 0 check_err $? "Packets were not dropped" log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc" kill $mz_pid && wait $mz_pid &> /dev/null tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower } reserved_bits_payload_get() { dest_mac=$(mac_get $h1) p=$(: )"08:"$( : VXLAN flags )"01:00:00:"$( : VXLAN reserved )"00:03:e8:"$( : VXLAN VNI : 1000 )"00:"$( : VXLAN reserved )"$dest_mac:"$( : ETH daddr )"00:00:00:00:00:00:"$( : ETH saddr )"08:00:"$( : ETH type )"45:"$( : IP version + IHL )"00:"$( : IP TOS )"00:14:"$( : IP total length )"00:00:"$( : IP identification )"20:00:"$( : IP flags + frag off )"40:"$( : IP TTL )"00:"$( : IP proto )"00:00:"$( : IP header csum )"c0:00:02:03:"$( : IP saddr: 192.0.2.3 )"c0:00:02:01:"$( : IP daddr: 192.0.2.1 ) echo $p } short_payload_get() { dest_mac=$(mac_get $h1) p=$(: )"08:"$( : VXLAN flags )"00:00:00:"$( : VXLAN reserved )"00:03:e8:"$( : VXLAN VNI : 1000 )"00:"$( : VXLAN reserved )"$dest_mac:"$( : ETH daddr )"00:00:00:00:00:00:"$( : ETH saddr ) echo $p } corrupted_packet_test() { local trap_name="decap_error" local desc=$1; shift local payload_get=$1; shift local mz_pid RET=0 # In case of too short packet, there is no any inner packet, # so the matching will always succeed tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \ flower skip_hw src_ip 192.0.2.3 dst_ip 192.0.2.1 action pass rp1_mac=$(mac_get $rp1) payload=$($payload_get) ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -b $rp1_mac \ -B 192.0.2.17 -t udp sp=12345,dp=$VXPORT,p=$payload -q & mz_pid=$! devlink_trap_exception_test $trap_name tc_check_packets "dev $swp1 egress" 101 0 check_err $? "Packets were not dropped" log_test "$desc" kill $mz_pid && wait $mz_pid &> /dev/null tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower } decap_error_test() { ecn_decap_test "Decap error" "ECT(1)" 01 ecn_decap_test "Decap error" "ECT(0)" 02 ecn_decap_test "Decap error" "CE" 03 corrupted_packet_test "Decap error: Reserved bits in use" \ "reserved_bits_payload_get" corrupted_packet_test "Decap error: Too short inner packet" \ "short_payload_get" } mc_smac_payload_get() { dest_mac=$(mac_get $h1) source_mac=01:02:03:04:05:06 p=$(: )"08:"$( : VXLAN flags )"00:00:00:"$( : VXLAN reserved )"00:03:e8:"$( : VXLAN VNI : 1000 )"00:"$( : VXLAN reserved )"$dest_mac:"$( : ETH daddr )"$source_mac:"$( : ETH saddr )"08:00:"$( : ETH type )"45:"$( : IP version + IHL )"00:"$( : IP TOS )"00:14:"$( : IP total length )"00:00:"$( : IP identification )"20:00:"$( : IP flags + frag off )"40:"$( : IP TTL )"00:"$( : IP proto )"00:00:"$( : IP header csum )"c0:00:02:03:"$( : IP saddr: 192.0.2.3 )"c0:00:02:01:"$( : IP daddr: 192.0.2.1 ) echo $p } overlay_smac_is_mc_test() { local trap_name="overlay_smac_is_mc" local mz_pid RET=0 # The matching will be checked on devlink_trap_drop_test() # and the filter will be removed on devlink_trap_drop_cleanup() tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \ flower src_mac 01:02:03:04:05:06 action pass rp1_mac=$(mac_get $rp1) payload=$(mc_smac_payload_get) ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -b $rp1_mac \ -B 192.0.2.17 -t udp sp=12345,dp=$VXPORT,p=$payload -q & mz_pid=$! devlink_trap_drop_test $trap_name $swp1 101 log_test "Overlay source MAC is multicast" devlink_trap_drop_cleanup $mz_pid $swp1 "ip" 1 101 } trap cleanup EXIT setup_prepare setup_wait tests_run exit $EXIT_STATUS |