tools/testing/selftests/net/forwarding/tc_mpls_l2vpn.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # +-----------------------+
   5 # | H1 (v$h1)             |
   6 # | 192.0.2.1/24          |
   7 # | 2001:db8::1/124       |
   8 # |                 + $h1 |
   9 # +-----------------|-----+
  10 #                   |
  11 #                   | (Plain Ethernet traffic)
  12 #                   |
  13 # +-----------------|-----------------------------------------+
  14 # | LER1            + $edge1                                  |
  15 # |                     -ingress:                             |
  16 # |                       -encapsulate Ethernet into MPLS     |
  17 # |                       -add outer Ethernet header          |
  18 # |                       -redirect to $mpls1 (egress)        |
  19 # |                                                           |
  20 # |                 + $mpls1                                  |
  21 # |                 |   -ingress:                             |
  22 # |                 |     -remove outer Ethernet header       |
  23 # |                 |     -remove MPLS header                 |
  24 # |                 |     -redirect to $edge1 (egress)        |
  25 # +-----------------|-----------------------------------------+
  26 #                   |
  27 #                   | (Ethernet over MPLS traffic)
  28 #                   |
  29 # +-----------------|-----------------------------------------+
  30 # | LER2            + $mpls2                                  |
  31 # |                     -ingress:                             |
  32 # |                       -remove outer Ethernet header       |
  33 # |                       -remove MPLS header                 |
  34 # |                       -redirect to $edge2 (egress)        |
  35 # |                                                           |
  36 # |                 + $edge2                                  |
  37 # |                 |   -ingress:                             |
  38 # |                 |     -encapsulate Ethernet into MPLS     |
  39 # |                 |     -add outer Ethernet header          |
  40 # |                 |     -redirect to $mpls2 (egress)        |
  41 # +-----------------|-----------------------------------------|
  42 #                   |
  43 #                   | (Plain Ethernet traffic)
  44 #                   |
  45 # +-----------------|-----+
  46 # | H2 (v$h2)       |     |
  47 # |                 + $h2 |
  48 # | 192.0.2.2/24          |
  49 # | 2001:db8::2/124       |
  50 # +-----------------------+
  51 #
  52 # LER1 and LER2 logically represent two different routers. However, no VRF is
  53 # created for them, as they don't do any IP routing.
  54
  55 ALL_TESTS="mpls_forward_eth"
  56 NUM_NETIFS=6
  57 source lib.sh
  58
  59 h1_create()
  60 {
  61         simple_if_init $h1 192.0.2.1/24 2001:db8::1/124
  62 }
  63
  64 h1_destroy()
  65 {
  66         simple_if_fini $h1 192.0.2.1/24 2001:db8::1/124
  67 }
  68
  69 h2_create()
  70 {
  71         simple_if_init $h2 192.0.2.2/24 2001:db8::2/124
  72 }
  73
  74 h2_destroy()
  75 {
  76         simple_if_fini $h2 192.0.2.2/24 2001:db8::2/124
  77 }
  78
  79 ler1_create()
  80 {
  81         tc qdisc add dev $edge1 ingress
  82         tc filter add dev $edge1 ingress                            \
  83            matchall                                                 \
  84            action mpls mac_push label 102                           \
  85            action vlan push_eth dst_mac $mpls2mac src_mac $mpls1mac \
  86            action mirred egress redirect dev $mpls1
  87         ip link set dev $edge1 up
  88
  89         tc qdisc add dev $mpls1 ingress
  90         tc filter add dev $mpls1 ingress            \
  91            protocol mpls_uc                         \
  92            flower mpls_label 101                    \
  93            action vlan pop_eth                      \
  94            action mpls pop protocol teb             \
  95            action mirred egress redirect dev $edge1
  96         ip link set dev $mpls1 up
  97 }
  98
  99 ler1_destroy()
 100 {
 101         ip link set dev $mpls1 down
 102         tc qdisc del dev $mpls1 ingress
 103
 104         ip link set dev $edge1 down
 105         tc qdisc del dev $edge1 ingress
 106 }
 107
 108 ler2_create()
 109 {
 110         tc qdisc add dev $edge2 ingress
 111         tc filter add dev $edge2 ingress                            \
 112            matchall                                                 \
 113            action mpls mac_push label 101                           \
 114            action vlan push_eth dst_mac $mpls1mac src_mac $mpls2mac \
 115            action mirred egress redirect dev $mpls2
 116         ip link set dev $edge2 up
 117
 118         tc qdisc add dev $mpls2 ingress
 119         tc filter add dev $mpls2 ingress            \
 120            protocol mpls_uc                         \
 121            flower mpls_label 102                    \
 122            action vlan pop_eth                      \
 123            action mpls pop protocol teb             \
 124            action mirred egress redirect dev $edge2
 125         ip link set dev $mpls2 up
 126 }
 127
 128 ler2_destroy()
 129 {
 130         ip link set dev $mpls2 down
 131         tc qdisc del dev $mpls2 ingress
 132
 133         ip link set dev $edge2 down
 134         tc qdisc del dev $edge2 ingress
 135 }
 136
 137 mpls_forward_eth()
 138 {
 139         ping_test $h1 192.0.2.2
 140         ping6_test $h1 2001:db8::2
 141 }
 142
 143 setup_prepare()
 144 {
 145         h1=${NETIFS[p1]}
 146         edge1=${NETIFS[p2]}
 147
 148         mpls1=${NETIFS[p3]}
 149         mpls2=${NETIFS[p4]}
 150
 151         edge2=${NETIFS[p5]}
 152         h2=${NETIFS[p6]}
 153
 154         mpls1mac=$(mac_get $mpls1)
 155         mpls2mac=$(mac_get $mpls2)
 156
 157         vrf_prepare
 158
 159         h1_create
 160         h2_create
 161         ler1_create
 162         ler2_create
 163 }
 164
 165 cleanup()
 166 {
 167         pre_cleanup
 168
 169         ler2_destroy
 170         ler1_destroy
 171         h2_destroy
 172         h1_destroy
 173
 174         vrf_cleanup
 175 }
 176
 177 trap cleanup EXIT
 178
 179 setup_prepare
 180 setup_wait
 181
 182 tests_run
 183
 184 tc_offload_check
 185 if [[ $? -ne 0 ]]; then
 186         log_info "Could not test offloaded functionality"
 187 else
 188         tcflags="skip_sw"
 189         tests_run
 190 fi
 191
 192 exit $EXIT_STATUS