[ovs-dev] [PATCH RFC 5/5] Tunnel: Add self tests for MAC learning and ageing.

Paolo Valerio pvalerio at redhat.com
Thu Oct 7 12:35:40 UTC 2021


Tests for both ipv4 and ipv6 have been added.

Signed-off-by: Paolo Valerio <pvalerio at redhat.com>
---
 tests/tunnel-push-pop-ipv6.at |   66 +++++++++++++++++++++++++++++++++++++++++
 tests/tunnel-push-pop.at      |   65 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 131 insertions(+)

diff --git a/tests/tunnel-push-pop-ipv6.at b/tests/tunnel-push-pop-ipv6.at
index 59723e63b..5c4dd248b 100644
--- a/tests/tunnel-push-pop-ipv6.at
+++ b/tests/tunnel-push-pop-ipv6.at
@@ -255,6 +255,36 @@ AT_CHECK([cat p0.pcap.txt | grep 93aa55aa55000086dd6000000000203aff2001cafe | un
 3333ff000093aa55aa55000086dd6000000000203aff2001cafe000000000000000000000088ff0200000000000000000001ff00009387004d46000000002001cafe0000000000000000000000930101aa55aa550000
 ])
 
+dnl Set the ageing time to 5 seconds
+AT_CHECK([ovs-appctl tnl/neigh/ageing 5], [0], [OK
+])
+
+dnl Read the current ageing time
+AT_CHECK([ovs-appctl tnl/neigh/ageing], [0], [5
+])
+
+dnl Add an entry
+AT_CHECK([ovs-appctl tnl/neigh/set br0 2001:cafe::92 aa:bb:cc:00:00:01], [0], [OK
+])
+
+AT_CHECK([ovs-appctl tnl/neigh/show | grep br0 | sort], [0], [dnl
+2001:cafe::92                                 aa:bb:cc:00:00:01   br0
+])
+
+ovs-appctl time/warp 5000
+
+dnl Check the entry has been removed
+AT_CHECK([ovs-appctl tnl/neigh/show | grep br0 | sort], [0], [dnl
+])
+
+dnl Restore the ageing time to 900s (default)
+AT_CHECK([ovs-appctl tnl/neigh/ageing 900], [0], [OK
+])
+
+dnl Read the current ageing time
+AT_CHECK([ovs-appctl tnl/neigh/ageing], [0], [900
+])
+
 dnl Check ARP Snoop
 AT_CHECK([ovs-appctl netdev-dummy/receive p0 'in_port(1),eth(src=f8:bc:12:44:34:c8,dst=aa:55:aa:55:00:00),eth_type(0x86dd),ipv6(src=2001:cafe::92,dst=2001:cafe::88,label=0,proto=58,tclass=0,hlimit=255,frag=no),icmpv6(type=136,code=0),nd(target=2001:cafe::92,sll=00:00:00:00:00:00,tll=f8:bc:12:44:34:c8)'])
 
@@ -432,6 +462,42 @@ AT_CHECK([ovs-appctl dpif/dump-flows int-br | grep 'in_port(6081)'], [0], [dnl
 tunnel(tun_id=0x7b,ipv6_src=2001:cafe::92,ipv6_dst=2001:cafe::88,geneve({class=0xffff,type=0x80,len=4,0xa/0xf}{class=0xffff,type=0,len=4}),flags(-df-csum+key)),recirc_id(0),in_port(6081),packet_type(ns=0,id=0),eth_type(0x0800),ipv4(frag=no), packets:0, bytes:0, used:never, actions:userspace(pid=0,controller(reason=1,dont_send=0,continuation=0,recirc_id=3,rule_cookie=0,controller_id=0,max_len=65535))
 ])
 
+dnl Receive VXLAN with different MAC and verify that the neigh cache gets updated
+AT_CHECK([ovs-appctl netdev-dummy/receive p0 'aa55aa550000f8bc1244cafe86dd60000000003a11402001cafe0000000000000000000000922001cafe000000000000000000000088c85312b5003abc700c00000300007b00ffffffffffff00000000000008004500001c0001000040117cce7f0000017f0000010035003500080172'])
+
+ovs-appctl time/warp 1000
+ovs-appctl time/warp 1000
+
+dnl Check VXLAN tunnel push
+AT_CHECK([ovs-ofctl add-flow int-br action=2])
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'in_port(2),eth(src=36:b1:ee:7c:01:01,dst=36:b1:ee:7c:01:02),eth_type(0x0800),ipv4(src=1.1.3.88,dst=1.1.3.112,proto=47,tos=0,ttl=64,frag=no)'], [0], [stdout])
+AT_CHECK([tail -1 stdout], [0],
+  [Datapath actions: clone(tnl_push(tnl_port(4789),header(size=70,type=4,eth(dst=f8:bc:12:44:ca:fe,src=aa:55:aa:55:00:00,dl_type=0x86dd),ipv6(src=2001:cafe::88,dst=2001:cafe::92,label=0,proto=17,tclass=0x0,hlimit=64),udp(src=0,dst=4789,csum=0xffff),vxlan(flags=0x8000000,vni=0x7b)),out_port(100)),1)
+])
+
+AT_CHECK([ovs-appctl tnl/arp/show | tail -n+3 | sort], [0], [dnl
+2001:cafe::92                                 f8:bc:12:44:ca:fe   br0
+2001:cafe::93                                 f8:bc:12:44:34:b7   br0
+])
+
+dnl Restore and check the cache entries
+AT_CHECK([ovs-appctl netdev-dummy/receive p0 'aa55aa550000f8bc124434b686dd60000000003a11402001cafe0000000000000000000000922001cafe000000000000000000000088c85312b5003abc700c00000300007b00ffffffffffff00000000000008004500001c0001000040117cce7f0000017f0000010035003500080172'])
+
+ovs-appctl time/warp 1000
+ovs-appctl time/warp 1000
+
+dnl Check VXLAN tunnel push
+AT_CHECK([ovs-ofctl add-flow int-br action=2])
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'in_port(2),eth(src=36:b1:ee:7c:01:01,dst=36:b1:ee:7c:01:02),eth_type(0x0800),ipv4(src=1.1.3.88,dst=1.1.3.112,proto=47,tos=0,ttl=64,frag=no)'], [0], [stdout])
+AT_CHECK([tail -1 stdout], [0],
+  [Datapath actions: clone(tnl_push(tnl_port(4789),header(size=70,type=4,eth(dst=f8:bc:12:44:34:b6,src=aa:55:aa:55:00:00,dl_type=0x86dd),ipv6(src=2001:cafe::88,dst=2001:cafe::92,label=0,proto=17,tclass=0x0,hlimit=64),udp(src=0,dst=4789,csum=0xffff),vxlan(flags=0x8000000,vni=0x7b)),out_port(100)),1)
+])
+
+AT_CHECK([ovs-appctl tnl/arp/show | tail -n+3 | sort], [0], [dnl
+2001:cafe::92                                 f8:bc:12:44:34:b6   br0
+2001:cafe::93                                 f8:bc:12:44:34:b7   br0
+])
+
 ovs-appctl time/warp 10000
 
 AT_CHECK([ovs-vsctl del-port int-br t3 \
diff --git a/tests/tunnel-push-pop.at b/tests/tunnel-push-pop.at
index 12fc1ef91..f23372613 100644
--- a/tests/tunnel-push-pop.at
+++ b/tests/tunnel-push-pop.at
@@ -270,6 +270,36 @@ AT_CHECK([cat p0.pcap.txt | grep 101025d | uniq], [0], [dnl
 ffffffffffffaa55aa55000008060001080006040001aa55aa550000010102580000000000000101025d
 ])
 
+dnl Set the ageing time to 5 seconds
+AT_CHECK([ovs-appctl tnl/neigh/ageing 5], [0], [OK
+])
+
+dnl Read the current ageing time
+AT_CHECK([ovs-appctl tnl/neigh/ageing], [0], [5
+])
+
+dnl Add an entry
+AT_CHECK([ovs-appctl tnl/neigh/set br0 1.1.2.92 aa:bb:cc:00:00:01], [0], [OK
+])
+
+AT_CHECK([ovs-appctl tnl/neigh/show | grep br0 | sort], [0], [dnl
+1.1.2.92                                      aa:bb:cc:00:00:01   br0
+])
+
+ovs-appctl time/warp 5000
+
+dnl Check the entry has been removed
+AT_CHECK([ovs-appctl tnl/neigh/show | grep br0 | sort], [0], [dnl
+])
+
+dnl Restore the ageing time to 900s (default)
+AT_CHECK([ovs-appctl tnl/neigh/ageing 900], [0], [OK
+])
+
+dnl Read the current ageing time
+AT_CHECK([ovs-appctl tnl/neigh/ageing], [0], [900
+])
+
 dnl Check ARP Snoop
 AT_CHECK([ovs-appctl netdev-dummy/receive p0 'recirc_id(0),in_port(1),eth(src=f8:bc:12:44:34:c8,dst=ff:ff:ff:ff:ff:ff),eth_type(0x0806),arp(sip=1.1.2.92,tip=1.1.2.88,op=2,sha=f8:bc:12:44:34:c8,tha=00:00:00:00:00:00)'])
 
@@ -522,6 +552,41 @@ AT_CHECK([ovs-appctl dpif/dump-flows int-br | grep 'in_port(6081)'], [0], [dnl
 tunnel(tun_id=0x7b,src=1.1.2.92,dst=1.1.2.88,geneve({class=0xffff,type=0x80,len=4,0xa/0xf}{class=0xffff,type=0,len=4}),flags(-df-csum+key)),recirc_id(0),in_port(6081),packet_type(ns=0,id=0),eth_type(0x0800),ipv4(frag=no), packets:0, bytes:0, used:never, actions:userspace(pid=0,controller(reason=1,dont_send=0,continuation=0,recirc_id=2,rule_cookie=0,controller_id=0,max_len=65535))
 ])
 
+dnl Receive VXLAN with different MAC and verify that the neigh cache gets updated
+AT_CHECK([ovs-appctl netdev-dummy/receive p0 'aa55aa550000f8bc1244cafe08004500004e00010000401173e90101025c01010258c85312b5003a8cd40c00000300007b00ffffffffffff00000000000008004500001c0001000040117cce7f0000017f0000010035003500080172'])
+
+ovs-appctl time/warp 1000
+ovs-appctl time/warp 1000
+
+dnl Check VXLAN tunnel push
+AT_CHECK([ovs-ofctl add-flow int-br action=2])
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'in_port(2),eth(src=36:b1:ee:7c:01:01,dst=36:b1:ee:7c:01:02),eth_type(0x0800),ipv4(src=1.1.3.88,dst=1.1.3.112,proto=47,tos=0,ttl=64,frag=no)'], [0], [stdout])
+AT_CHECK([tail -1 stdout], [0],
+  [Datapath actions: clone(tnl_push(tnl_port(4789),header(size=50,type=4,eth(dst=f8:bc:12:44:ca:fe,src=aa:55:aa:55:00:00,dl_type=0x0800),ipv4(src=1.1.2.88,dst=1.1.2.92,proto=17,tos=0,ttl=64,frag=0x4000),udp(src=0,dst=4789,csum=0x0),vxlan(flags=0x8000000,vni=0x7b)),out_port(100)),1)
+])
+
+AT_CHECK([ovs-appctl tnl/neigh/show | tail -n+3 | sort], [0], [dnl
+1.1.2.92                                      f8:bc:12:44:ca:fe   br0
+1.1.2.93                                      f8:bc:12:44:34:b7   br0
+])
+
+dnl Restore and check the cache entries
+AT_CHECK([ovs-appctl netdev-dummy/receive p0 'aa55aa550000f8bc124434b608004500004e00010000401173e90101025c01010258c85312b5003a8cd40c00000300007b00ffffffffffff00000000000008004500001c0001000040117cce7f0000017f0000010035003500080172'])
+
+ovs-appctl time/warp 1000
+ovs-appctl time/warp 1000
+
+dnl Check VXLAN tunnel push
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'in_port(2),eth(src=36:b1:ee:7c:01:01,dst=36:b1:ee:7c:01:02),eth_type(0x0800),ipv4(src=1.1.3.88,dst=1.1.3.112,proto=47,tos=0,ttl=64,frag=no)'], [0], [stdout])
+AT_CHECK([tail -1 stdout], [0],
+  [Datapath actions: clone(tnl_push(tnl_port(4789),header(size=50,type=4,eth(dst=f8:bc:12:44:34:b6,src=aa:55:aa:55:00:00,dl_type=0x0800),ipv4(src=1.1.2.88,dst=1.1.2.92,proto=17,tos=0,ttl=64,frag=0x4000),udp(src=0,dst=4789,csum=0x0),vxlan(flags=0x8000000,vni=0x7b)),out_port(100)),1)
+])
+
+AT_CHECK([ovs-appctl tnl/neigh/show | tail -n+3 | sort], [0], [dnl
+1.1.2.92                                      f8:bc:12:44:34:b6   br0
+1.1.2.93                                      f8:bc:12:44:34:b7   br0
+])
+
 ovs-appctl time/warp 10000
 
 AT_CHECK([ovs-vsctl del-port int-br t3 \



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