![Hongbin Lu](/assets/img/avatar_default.png)
After forking from Ryu, the namespace needs to change from 'ryu' to 'os_ken' so that it won't collide with the namespace of the old library. Change-Id: I807a8785e525cc02825d15a1a01eec3d5d20cce4
189 lines
5.5 KiB
Python
189 lines
5.5 KiB
Python
# Copyright (C) 2015 Nippon Telegraph and Telephone Corporation.
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# Copyright (C) 2015 YAMAMOTO Takashi <yamamoto at valinux co jp>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import unittest
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import os_ken.ofproto.ofproto_v1_3 as ofp
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class Test_OXM(unittest.TestCase):
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def _test_encode(self, user, on_wire):
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(f, uv) = user
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(n, v, m) = ofp.oxm_from_user(f, uv)
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buf = bytearray()
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ofp.oxm_serialize(n, v, m, buf, 0)
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self.assertEqual(on_wire, buf)
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def _test_decode(self, user, on_wire):
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(n, v, m, l) = ofp.oxm_parse(on_wire, 0)
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self.assertEqual(len(on_wire), l)
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(f, uv) = ofp.oxm_to_user(n, v, m)
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self.assertEqual(user, (f, uv))
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def _test_encode_header(self, user, on_wire):
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f = user
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n = ofp.oxm_from_user_header(f)
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buf = bytearray()
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ofp.oxm_serialize_header(n, buf, 0)
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self.assertEqual(on_wire, buf)
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def _test_decode_header(self, user, on_wire):
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(n, l) = ofp.oxm_parse_header(on_wire, 0)
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self.assertEqual(len(on_wire), l)
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f = ofp.oxm_to_user_header(n)
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self.assertEqual(user, f)
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def _test(self, user, on_wire, header_bytes):
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self._test_encode(user, on_wire)
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self._test_decode(user, on_wire)
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if isinstance(user[1], tuple): # has mask?
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return
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user_header = user[0]
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on_wire_header = on_wire[:header_bytes]
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self._test_decode_header(user_header, on_wire_header)
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if user_header.startswith('field_'):
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return # not supported
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self._test_encode_header(user_header, on_wire_header)
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def test_basic_nomask(self):
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user = ('ipv4_src', '192.0.2.1')
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on_wire = (
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b'\x80\x00\x16\x04'
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b'\xc0\x00\x02\x01'
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)
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self._test(user, on_wire, 4)
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def test_basic_mask(self):
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user = ('ipv4_src', ('192.0.2.1', '255.255.0.0'))
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on_wire = (
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b'\x80\x00\x17\x08'
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b'\xc0\x00\x02\x01'
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b'\xff\xff\x00\x00'
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)
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self._test(user, on_wire, 4)
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def test_exp_nomask(self):
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user = ('_dp_hash', 0x12345678)
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on_wire = (
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b'\xff\xff\x00\x08'
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b'\x00\x00\x23\x20' # Nicira
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b'\x12\x34\x56\x78'
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)
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self._test(user, on_wire, 8)
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def test_exp_mask(self):
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user = ('_dp_hash', (0x12345678, 0x7fffffff))
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on_wire = (
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b'\xff\xff\x01\x0c'
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b'\x00\x00\x23\x20' # Nicira
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b'\x12\x34\x56\x78'
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b'\x7f\xff\xff\xff'
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)
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self._test(user, on_wire, 8)
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def test_exp_nomask_2(self):
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user = ('tcp_flags', 0x876)
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on_wire = (
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b'\xff\xff\x54\x06'
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b'\x4f\x4e\x46\x00' # ONF
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b'\x08\x76'
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)
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self._test(user, on_wire, 8)
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def test_exp_mask_2(self):
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user = ('tcp_flags', (0x876, 0x7ff))
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on_wire = (
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b'\xff\xff\x55\x08'
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b'\x4f\x4e\x46\x00' # ONF
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b'\x08\x76'
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b'\x07\xff'
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)
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self._test(user, on_wire, 8)
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def test_exp_nomask_3(self):
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user = ('actset_output', 0x98765432)
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on_wire = (
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b'\xff\xff\x56\x08'
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b'\x4f\x4e\x46\x00' # ONF
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b'\x98\x76\x54\x32'
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)
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self._test(user, on_wire, 8)
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def test_exp_mask_3(self):
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user = ('actset_output', (0x98765432, 0xfffffffe))
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on_wire = (
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b'\xff\xff\x57\x0c'
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b'\x4f\x4e\x46\x00' # ONF
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b'\x98\x76\x54\x32'
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b'\xff\xff\xff\xfe'
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)
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self._test(user, on_wire, 8)
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def test_nxm_1_nomask(self):
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user = ('tun_ipv4_src', '192.0.2.1')
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on_wire = (
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b'\x00\x01\x3e\x04'
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b'\xc0\x00\x02\x01'
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)
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self._test(user, on_wire, 4)
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def test_nxm_1_mask(self):
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user = ('tun_ipv4_src', ('192.0.2.1', '255.255.0.0'))
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on_wire = (
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b'\x00\x01\x3f\x08'
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b'\xc0\x00\x02\x01'
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b'\xff\xff\x00\x00'
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)
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self._test(user, on_wire, 4)
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def test_ext_256_nomask(self):
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user = ('pbb_uca', 50)
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on_wire = (
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b'\xff\xff\x00\x07'
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b'\x4f\x4e\x46\x00' # ONF
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b'\x0a\x00'
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b'\x32'
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)
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self._test(user, on_wire, 10)
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def test_ext_256_mask(self):
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user = ('pbb_uca', (50, 51))
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on_wire = (
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b'\xff\xff\x01\x08'
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b'\x4f\x4e\x46\x00' # ONF
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b'\x0a\x00'
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b'\x32'
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b'\x33'
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)
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self._test(user, on_wire, 10)
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def test_basic_unknown_nomask(self):
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user = ('field_100', 'aG9nZWhvZ2U=')
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on_wire = (
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b'\x00\x00\xc8\x08'
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b'hogehoge'
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)
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self._test(user, on_wire, 4)
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def test_basic_unknown_mask(self):
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user = ('field_100', ('aG9nZWhvZ2U=', 'ZnVnYWZ1Z2E='))
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on_wire = (
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b'\x00\x00\xc9\x10'
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b'hogehoge'
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b'fugafuga'
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)
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self._test(user, on_wire, 4)
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