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#!/usr/bin/env python3
import unittest
from framework import VppTestCase, VppTestRunner
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath
class TestOffload(VppTestCase):
""" Offload Unit Test Cases """
@classmethod
def setUpClass(cls):
super(TestOffload, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestOffload, cls).tearDownClass()
def setUp(self):
super(TestOffload, self).setUp()
def tearDown(self):
super(TestOffload, self).tearDown()
def test_offload_unittest(self):
""" Checksum Offload Test """
cmds = ["loop create",
"set int ip address loop0 11.22.33.1/24",
"set int state loop0 up",
"loop create",
"set int ip address loop1 11.22.34.1/24",
"set int state loop1 up",
"set ip neighbor loop1 11.22.34.44 03:00:11:22:34:44",
"packet-generator new {\n"
" name s0\n"
" limit 100\n"
" size 128-128\n"
" interface loop0\n"
" tx-interface loop1\n"
" node loop1-output\n"
" buffer-flags ip4 offload\n"
" buffer-offload-flags offload-ip-cksum offload-udp-cksum\n"
" data {\n"
" IP4: 1.2.3 -> dead.0000.0001\n"
" UDP: 11.22.33.44 -> 11.22.34.44\n"
" ttl 2 checksum 13\n"
" UDP: 1234 -> 2345\n"
" checksum 11\n"
" incrementing 114\n"
" }\n"
"}",
"trace add pg-input 1",
"pa en",
"show error"]
for cmd in cmds:
r = self.vapi.cli_return_response(cmd)
if r.retval != 0:
if hasattr(r, 'reply'):
self.logger.info(cmd + " FAIL reply " + r.reply)
else:
self.logger.info(cmd + " FAIL retval " + str(r.retval))
r = self.vapi.cli_return_response("show trace")
self.assertTrue(r.retval == 0)
self.assertTrue(hasattr(r, 'reply'))
rv = r.reply
look_here = rv.find('ethernet-input')
self.assertFalse(look_here == -1)
bad_checksum_index = rv[look_here:].find('should be')
self.assertTrue(bad_checksum_index == -1)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
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