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fib: Source Address Selection

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Type: feature

Use the FIB to provide SAS (in so far as it is today)
 - Use the glean adjacency as the record of the connected prefixes
 = there's a glean per-{interface, protocol, connected-prefix}
 - Keep the glean up to date with whatever the recieve host prefix is
(since it can change)

Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Change-Id: I0f3dd1edb1f3fc965af1c7c586709028eb9cdeac
This commit is contained in:
Neale Ranns
2020-11-26 08:37:27 +00:00
committed by Ole Tr�an
parent 9b8cb50824
commit e2fe097424
34 changed files with 868 additions and 394 deletions
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78
test/test_ping.py
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@ -7,6 +7,8 @@ from scapy.packet import Raw
from framework import VppTestCase
from util import ppp
from vpp_ip_route import VppIpInterfaceAddress
from vpp_neighbor import VppNeighbor
""" TestPing is a subclass of VPPTestCase classes.
@ -46,6 +48,21 @@ class TestPing(VppTestCase):
def show_commands_at_teardown(self):
self.logger.info(self.vapi.cli("show hardware"))
def verify_ping_request(self, p, src, dst, seq):
ip = p[IP]
self.assertEqual(ip.version, 4)
self.assertEqual(ip.flags, 0)
self.assertEqual(ip.src, src)
self.assertEqual(ip.dst, dst)
self.assertEqual(ip.proto, 1)
self.assertEqual(len(ip.options), 0)
self.assertGreaterEqual(ip.ttl, 254)
icmp = p[ICMP]
self.assertEqual(icmp.type, 8)
self.assertEqual(icmp.code, 0)
self.assertEqual(icmp.seq, seq)
return icmp
def test_ping_basic(self):
""" basic ping test """
try:
@ -62,18 +79,8 @@ class TestPing(VppTestCase):
icmp_id = None
icmp_seq = 1
for p in out:
ip = p[IP]
self.assertEqual(ip.version, 4)
self.assertEqual(ip.flags, 0)
self.assertEqual(ip.src, self.pg1.local_ip4)
self.assertEqual(ip.dst, self.pg1.remote_ip4)
self.assertEqual(ip.proto, 1)
self.assertEqual(len(ip.options), 0)
self.assertGreaterEqual(ip.ttl, 254)
icmp = p[ICMP]
self.assertEqual(icmp.type, 8)
self.assertEqual(icmp.code, 0)
self.assertEqual(icmp.seq, icmp_seq)
icmp = self.verify_ping_request(p, self.pg1.local_ip4,
self.pg1.remote_ip4, icmp_seq)
icmp_seq = icmp_seq + 1
if icmp_id is None:
icmp_id = icmp.id
@ -98,18 +105,8 @@ class TestPing(VppTestCase):
icmp_seq = 1
count = 0
for p in out:
ip = p[IP]
self.assertEqual(ip.version, 4)
self.assertEqual(ip.flags, 0)
self.assertEqual(ip.src, self.pg1.local_ip4)
self.assertEqual(ip.dst, self.pg1.remote_ip4)
self.assertEqual(ip.proto, 1)
self.assertEqual(len(ip.options), 0)
self.assertGreaterEqual(ip.ttl, 254)
icmp = p[ICMP]
self.assertEqual(icmp.type, 8)
self.assertEqual(icmp.code, 0)
self.assertEqual(icmp.seq, icmp_seq)
icmp = self.verify_ping_request(p, self.pg1.local_ip4,
self.pg1.remote_ip4, icmp_seq)
count = count + 1
if count >= 3:
icmp_seq = icmp_seq + 1
@ -120,3 +117,36 @@ class TestPing(VppTestCase):
self.assertEqual(icmp.id, icmp_id)
finally:
self.vapi.cli("show error")
def test_ping_src(self):
""" ping with source address set """
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.logger.info(self.vapi.cli("show ip4 neighbors"))
self.logger.info(self.vapi.cli("show ip6 neighbors"))
nbr_addr = "10.0.0.2"
VppIpInterfaceAddress(self, self.pg1, "10.0.0.1", 24).add_vpp_config()
VppNeighbor(self, self.pg1.sw_if_index,
"00:11:22:33:44:55",
nbr_addr).add_vpp_config()
ping_cmd = "ping %s interval 0.01 repeat 3" % self.pg1.remote_ip4
ret = self.vapi.cli(ping_cmd)
out = self.pg1.get_capture(3)
icmp_seq = 1
for p in out:
icmp = self.verify_ping_request(p, self.pg1.local_ip4,
self.pg1.remote_ip4, icmp_seq)
icmp_seq = icmp_seq + 1
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
ping_cmd = "ping %s interval 0.01 repeat 3" % nbr_addr
ret = self.vapi.cli(ping_cmd)
out = self.pg1.get_capture(3)
icmp_seq = 1
for p in out:
icmp = self.verify_ping_request(p, "10.0.0.1", nbr_addr, icmp_seq)
icmp_seq = icmp_seq + 1