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Rework kube-proxy into LB plugin

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Add support of NAT66

Change-Id: Ie6aa79078a3835f989829b9a597c448dfd2f9ea3
Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>
This commit is contained in:
Hongjun Ni
2018-02-06 23:00:22 +08:00
committed by Damjan Marion
parent afe56de947
commit d92a0b553f
22 changed files with 1846 additions and 4271 deletions
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71
test/test_lb.py
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@ -16,6 +16,8 @@ from util import ppp
- IP6 to GRE4 encap
- IP6 to GRE6 encap
- IP4 to L3DSR encap
- IP4 to NAT4 encap
- IP6 to NAT6 encap
As stated in comments below, GRE has issues with IPv6.
All test cases involving IPv6 are executed, but
@ -135,7 +137,7 @@ class TestLB(VppTestCase):
# self.assertEqual(len(ip.options), 0)
gre = GRE(str(p[IPv6].payload))
self.checkInner(gre, isv4)
if (encap == 'l3dsr'):
elif (encap == 'l3dsr'):
ip = p[IP]
asid = int(ip.dst.split(".")[3])
self.assertEqual(ip.version, 4)
@ -143,6 +145,33 @@ class TestLB(VppTestCase):
self.assertEqual(ip.dst, "10.0.0.%u" % asid)
self.assertEqual(ip.tos, 0x1c)
self.assertEqual(len(ip.options), 0)
elif (encap == 'nat4'):
ip = p[IP]
asid = int(ip.dst.split(".")[3])
self.assertEqual(ip.version, 4)
self.assertEqual(ip.flags, 0)
self.assertEqual(ip.dst, "10.0.0.%u" % asid)
self.assertEqual(ip.proto, 17)
self.assertEqual(len(ip.options), 0)
self.assertGreaterEqual(ip.ttl, 63)
udp = p[UDP]
self.assertEqual(udp.dport, 3307)
elif (encap == 'nat6'):
ip = p[IPv6]
asid = ip.dst.split(":")
asid = asid[len(asid) - 1]
asid = 0 if asid == "" else int(asid)
self.assertEqual(ip.version, 6)
self.assertEqual(ip.tc, 0)
self.assertEqual(ip.fl, 0)
self.assertEqual(
socket.inet_pton(socket.AF_INET6, ip.dst),
socket.inet_pton(socket.AF_INET6, "2002::%u" % asid)
)
self.assertEqual(ip.nh, 17)
self.assertGreaterEqual(ip.hlim, 63)
udp = UDP(str(p[IPv6].payload))
self.assertEqual(udp.dport, 3307)
load[asid] += 1
except:
self.logger.error(ppp("Unexpected or invalid packet:", p))
@ -246,3 +275,43 @@ class TestLB(VppTestCase):
self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u del" % (asid))
self.vapi.cli("lb vip 90.0.0.0/8 encap l3dsr dscp 7 del")
self.vapi.cli("test lb flowtable flush")
def test_lb_ip4_nat4(self):
""" Load Balancer IP4 NAT4 """
try:
self.vapi.cli("lb vip 90.0.0.0/8 encap nat4"
" type clusterip port 3306 target_port 3307")
for asid in self.ass:
self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u" % (asid))
self.pg0.add_stream(self.generatePackets(self.pg0, isv4=True))
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.checkCapture(encap='nat4', isv4=True)
finally:
for asid in self.ass:
self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u del" % (asid))
self.vapi.cli("lb vip 90.0.0.0/8 encap nat4"
" type clusterip port 3306 target_port 3307 del")
self.vapi.cli("test lb flowtable flush")
def test_lb_ip6_nat6(self):
""" Load Balancer IP6 NAT6 """
try:
self.vapi.cli("lb vip 2001::/16 encap nat6"
" type clusterip port 3306 target_port 3307")
for asid in self.ass:
self.vapi.cli("lb as 2001::/16 2002::%u" % (asid))
self.pg0.add_stream(self.generatePackets(self.pg0, isv4=False))
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.checkCapture(encap='nat6', isv4=False)
finally:
for asid in self.ass:
self.vapi.cli("lb as 2001::/16 2002::%u del" % (asid))
self.vapi.cli("lb vip 2001::/16 encap nat6"
" type clusterip port 3306 target_port 3307 del")
self.vapi.cli("test lb flowtable flush")