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authorNeale Ranns <nranns@cisco.com>2019-07-04 14:12:50 +0000
committerFlorin Coras <florin.coras@gmail.com>2019-07-05 17:57:33 +0000
commit81cfa9cf388a742bad0d71ba1c92debb04c6cdba (patch)
tree5d70a658456730b7c6834d9a0c2279ec40d25bd8 /test/test_gbp.py
parentfe2fff37bbe215f092a452e8322de7f885fc0298 (diff)
vxlan-gbp: Decap ignores reserved bits
Type: fix from the draft: 3. Backward Compatibility VXLAN [RFC7348] requires reserved fields to be set to zero on transmit and ignored on receive. Change-Id: I98544907894f1a6eba9595a37c3c88322905630e Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'test/test_gbp.py')
-rw-r--r--test/test_gbp.py11
1 files changed, 7 insertions, 4 deletions
diff --git a/test/test_gbp.py b/test/test_gbp.py
index e4d4390f081..37d587f51b4 100644
--- a/test/test_gbp.py
+++ b/test/test_gbp.py
@@ -1719,14 +1719,15 @@ class TestGBP(VppTestCase):
# Learn new EPs from GARP packets received on the BD's mcast tunnel
#
for ii, l in enumerate(learnt):
- # a packet with an sclass from a known EPG
- # arriving on an unknown TEP
+ # add some junk in the reserved field of the vxlan-header
+ # next to the VNI. we should accept since reserved bits are
+ # ignored on rx.
p = (Ether(src=self.pg2.remote_mac,
dst=self.pg2.local_mac) /
IP(src=self.pg2.remote_hosts[1].ip4,
dst="239.1.1.1") /
UDP(sport=1234, dport=48879) /
- VXLAN(vni=88, gpid=112, flags=0x88) /
+ VXLAN(vni=88, reserved2=0x80, gpid=112, flags=0x88) /
Ether(src=l['mac'], dst="ff:ff:ff:ff:ff:ff") /
ARP(op="who-has",
psrc=l['ip'], pdst=l['ip'],
@@ -1832,12 +1833,14 @@ class TestGBP(VppTestCase):
#
for l in learnt:
# a packet with an sclass from a known EPG
+ # set a reserved bit in addition to the G and I
+ # reserved bits should not be checked on rx.
p = (Ether(src=self.pg2.remote_mac,
dst=self.pg2.local_mac) /
IP(src=self.pg2.remote_hosts[1].ip4,
dst=self.pg2.local_ip4) /
UDP(sport=1234, dport=48879) /
- VXLAN(vni=99, gpid=112, flags=0x88) /
+ VXLAN(vni=99, gpid=112, flags=0xc8) /
Ether(src=l['mac'], dst=ep.mac) /
IP(src=l['ip'], dst=ep.ip4.address) /
UDP(sport=1234, dport=1234) /