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

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 ALL_TESTS="standalone two_bridges one_bridge_two_pvids"
   5 NUM_NETIFS=4
   6
   7 source lib.sh
   8
   9 h1=${NETIFS[p1]}
  10 h2=${NETIFS[p3]}
  11 swp1=${NETIFS[p2]}
  12 swp2=${NETIFS[p4]}
  13
  14 H1_IPV4="192.0.2.1"
  15 H2_IPV4="192.0.2.2"
  16 H1_IPV6="2001:db8:1::1"
  17 H2_IPV6="2001:db8:1::2"
  18
  19 IPV4_ALLNODES="224.0.0.1"
  20 IPV6_ALLNODES="ff02::1"
  21 MACV4_ALLNODES="01:00:5e:00:00:01"
  22 MACV6_ALLNODES="33:33:00:00:00:01"
  23 NON_IP_MC="01:02:03:04:05:06"
  24 NON_IP_PKT="00:04 48:45:4c:4f"
  25 BC="ff:ff:ff:ff:ff:ff"
  26
  27 # The full 4K VLAN space is too much to check, so strategically pick some
  28 # values which should provide reasonable coverage
  29 vids=(0 1 2 5 10 20 50 100 200 500 1000 1000 2000 4000 4094)
  30
  31 send_non_ip()
  32 {
  33         local if_name=$1
  34         local smac=$2
  35         local dmac=$3
  36
  37         $MZ -q $if_name "$dmac $smac $NON_IP_PKT"
  38 }
  39
  40 send_uc_ipv4()
  41 {
  42         local if_name=$1
  43         local dmac=$2
  44
  45         ip neigh add $H2_IPV4 lladdr $dmac dev $if_name
  46         ping_do $if_name $H2_IPV4
  47         ip neigh del $H2_IPV4 dev $if_name
  48 }
  49
  50 send_mc_ipv4()
  51 {
  52         local if_name=$1
  53
  54         ping_do $if_name $IPV4_ALLNODES "-I $if_name"
  55 }
  56
  57 send_uc_ipv6()
  58 {
  59         local if_name=$1
  60         local dmac=$2
  61
  62         ip -6 neigh add $H2_IPV6 lladdr $dmac dev $if_name
  63         ping6_do $if_name $H2_IPV6
  64         ip -6 neigh del $H2_IPV6 dev $if_name
  65 }
  66
  67 send_mc_ipv6()
  68 {
  69         local if_name=$1
  70
  71         ping6_do $if_name $IPV6_ALLNODES%$if_name
  72 }
  73
  74 check_rcv()
  75 {
  76         local if_name=$1
  77         local type=$2
  78         local pattern=$3
  79         local should_fail=1
  80
  81         RET=0
  82
  83         tcpdump_show $if_name | grep -q "$pattern"
  84
  85         check_err_fail "$should_fail" "$?" "reception"
  86
  87         log_test "$type"
  88 }
  89
  90 run_test()
  91 {
  92         local test_name="$1"
  93         local smac=$(mac_get $h1)
  94         local dmac=$(mac_get $h2)
  95         local h1_ipv6_lladdr=$(ipv6_lladdr_get $h1)
  96         local vid=
  97
  98         echo "$test_name: Sending packets"
  99
 100         tcpdump_start $h2
 101
 102         send_non_ip $h1 $smac $dmac
 103         send_non_ip $h1 $smac $NON_IP_MC
 104         send_non_ip $h1 $smac $BC
 105         send_uc_ipv4 $h1 $dmac
 106         send_mc_ipv4 $h1
 107         send_uc_ipv6 $h1 $dmac
 108         send_mc_ipv6 $h1
 109
 110         for vid in "${vids[@]}"; do
 111                 vlan_create $h1 $vid
 112                 simple_if_init $h1.$vid $H1_IPV4/24 $H1_IPV6/64
 113
 114                 send_non_ip $h1.$vid $smac $dmac
 115                 send_non_ip $h1.$vid $smac $NON_IP_MC
 116                 send_non_ip $h1.$vid $smac $BC
 117                 send_uc_ipv4 $h1.$vid $dmac
 118                 send_mc_ipv4 $h1.$vid
 119                 send_uc_ipv6 $h1.$vid $dmac
 120                 send_mc_ipv6 $h1.$vid
 121
 122                 simple_if_fini $h1.$vid $H1_IPV4/24 $H1_IPV6/64
 123                 vlan_destroy $h1 $vid
 124         done
 125
 126         sleep 1
 127
 128         echo "$test_name: Checking which packets were received"
 129
 130         tcpdump_stop $h2
 131
 132         check_rcv $h2 "$test_name: Unicast non-IP untagged" \
 133                 "$smac > $dmac, 802.3, length 4:"
 134
 135         check_rcv $h2 "$test_name: Multicast non-IP untagged" \
 136                 "$smac > $NON_IP_MC, 802.3, length 4:"
 137
 138         check_rcv $h2 "$test_name: Broadcast non-IP untagged" \
 139                 "$smac > $BC, 802.3, length 4:"
 140
 141         check_rcv $h2 "$test_name: Unicast IPv4 untagged" \
 142                 "$smac > $dmac, ethertype IPv4 (0x0800)"
 143
 144         check_rcv $h2 "$test_name: Multicast IPv4 untagged" \
 145                 "$smac > $MACV4_ALLNODES, ethertype IPv4 (0x0800).*: $H1_IPV4 > $IPV4_ALLNODES"
 146
 147         check_rcv $h2 "$test_name: Unicast IPv6 untagged" \
 148                 "$smac > $dmac, ethertype IPv6 (0x86dd).*8: $H1_IPV6 > $H2_IPV6"
 149
 150         check_rcv $h2 "$test_name: Multicast IPv6 untagged" \
 151                 "$smac > $MACV6_ALLNODES, ethertype IPv6 (0x86dd).*: $h1_ipv6_lladdr > $IPV6_ALLNODES"
 152
 153         for vid in "${vids[@]}"; do
 154                 check_rcv $h2 "$test_name: Unicast non-IP VID $vid" \
 155                         "$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
 156
 157                 check_rcv $h2 "$test_name: Multicast non-IP VID $vid" \
 158                         "$smac > $NON_IP_MC, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
 159
 160                 check_rcv $h2 "$test_name: Broadcast non-IP VID $vid" \
 161                         "$smac > $BC, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
 162
 163                 check_rcv $h2 "$test_name: Unicast IPv4 VID $vid" \
 164                         "$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv4 (0x0800), $H1_IPV4 > $H2_IPV4"
 165
 166                 check_rcv $h2 "$test_name: Multicast IPv4 VID $vid" \
 167                         "$smac > $MACV4_ALLNODES, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv4 (0x0800), $H1_IPV4 > $IPV4_ALLNODES"
 168
 169                 check_rcv $h2 "$test_name: Unicast IPv6 VID $vid" \
 170                         "$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv6 (0x86dd), $H1_IPV6 > $H2_IPV6"
 171
 172                 check_rcv $h2 "$test_name: Multicast IPv6 VID $vid" \
 173                         "$smac > $MACV6_ALLNODES, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv6 (0x86dd), $h1_ipv6_lladdr > $IPV6_ALLNODES"
 174         done
 175
 176         tcpdump_cleanup $h2
 177 }
 178
 179 standalone()
 180 {
 181         run_test "Standalone switch ports"
 182 }
 183
 184 two_bridges()
 185 {
 186         ip link add br0 type bridge && ip link set br0 up
 187         ip link add br1 type bridge && ip link set br1 up
 188         ip link set $swp1 master br0
 189         ip link set $swp2 master br1
 190
 191         run_test "Switch ports in different bridges"
 192
 193         ip link del br1
 194         ip link del br0
 195 }
 196
 197 one_bridge_two_pvids()
 198 {
 199         ip link add br0 type bridge vlan_filtering 1 vlan_default_pvid 0
 200         ip link set br0 up
 201         ip link set $swp1 master br0
 202         ip link set $swp2 master br0
 203
 204         bridge vlan add dev $swp1 vid 1 pvid untagged
 205         bridge vlan add dev $swp2 vid 2 pvid untagged
 206
 207         run_test "Switch ports in VLAN-aware bridge with different PVIDs"
 208
 209         ip link del br0
 210 }
 211
 212 h1_create()
 213 {
 214         simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
 215 }
 216
 217 h1_destroy()
 218 {
 219         simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
 220 }
 221
 222 h2_create()
 223 {
 224         simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
 225 }
 226
 227 h2_destroy()
 228 {
 229         simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
 230 }
 231
 232 cleanup()
 233 {
 234         pre_cleanup
 235
 236         ip link set dev $swp2 down
 237         ip link set dev $swp1 down
 238
 239         h2_destroy
 240         h1_destroy
 241
 242         vrf_cleanup
 243 }
 244
 245 setup_prepare()
 246 {
 247         vrf_prepare
 248
 249         h1_create
 250         h2_create
 251         # we call simple_if_init from the test itself, but setup_wait expects
 252         # that we call it from here, and waits until the interfaces are up
 253         ip link set dev $swp1 up
 254         ip link set dev $swp2 up
 255 }
 256
 257 trap cleanup EXIT
 258
 259 setup_prepare
 260 setup_wait
 261
 262 tests_run
 263
 264 exit $EXIT_STATUS