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selftests: forwarding: Add a test case for ARP decapsulation
Verify that ARP packets are correctly decapsulated by the ingress VTEP by removing the neighbours configured on both VLAN interfaces and running a ping test. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -93,6 +93,7 @@
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ALL_TESTS="
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ping_ipv4
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arp_decap
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"
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NUM_NETIFS=6
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source lib.sh
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@ -465,6 +466,23 @@ ping_ipv4()
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ping_test $h2 10.1.1.102 ": local->remote vid 20->vid 10"
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}
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arp_decap()
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{
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# Repeat the ping tests, but without populating the neighbours. This
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# makes sure we correctly decapsulate ARP packets
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log_info "deleting neighbours from vlan interfaces"
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ip neigh del 10.1.1.102 dev vlan10
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ip neigh del 10.1.2.102 dev vlan20
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ping_ipv4
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ip neigh replace 10.1.1.102 lladdr $(in_ns ns1 mac_get w2) nud noarp \
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dev vlan10 extern_learn
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ip neigh replace 10.1.2.102 lladdr $(in_ns ns1 mac_get w4) nud noarp \
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dev vlan20 extern_learn
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}
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trap cleanup EXIT
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setup_prepare
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