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Diffstat (limited to 'tests/unit/ofproto/test_oxm.py')
| -rw-r--r-- | tests/unit/ofproto/test_oxm.py | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/tests/unit/ofproto/test_oxm.py b/tests/unit/ofproto/test_oxm.py new file mode 100644 index 00000000..ffb762fc --- /dev/null +++ b/tests/unit/ofproto/test_oxm.py @@ -0,0 +1,188 @@ +# Copyright (C) 2015 Nippon Telegraph and Telephone Corporation. +# Copyright (C) 2015 YAMAMOTO Takashi <yamamoto at valinux co jp> +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or +# implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import unittest + +import ryu.ofproto.ofproto_v1_3 as ofp + + +class Test_OXM(unittest.TestCase): + def _test_encode(self, user, on_wire): + (f, uv) = user + (n, v, m) = ofp.oxm_from_user(f, uv) + buf = bytearray() + ofp.oxm_serialize(n, v, m, buf, 0) + self.assertEqual(on_wire, buf) + + def _test_decode(self, user, on_wire): + (n, v, m, l) = ofp.oxm_parse(on_wire, 0) + self.assertEqual(len(on_wire), l) + (f, uv) = ofp.oxm_to_user(n, v, m) + self.assertEqual(user, (f, uv)) + + def _test_encode_header(self, user, on_wire): + f = user + n = ofp.oxm_from_user_header(f) + buf = bytearray() + ofp.oxm_serialize_header(n, buf, 0) + self.assertEqual(on_wire, buf) + + def _test_decode_header(self, user, on_wire): + (n, l) = ofp.oxm_parse_header(on_wire, 0) + self.assertEqual(len(on_wire), l) + f = ofp.oxm_to_user_header(n) + self.assertEqual(user, f) + + def _test(self, user, on_wire, header_bytes): + self._test_encode(user, on_wire) + self._test_decode(user, on_wire) + if isinstance(user[1], tuple): # has mask? + return + user_header = user[0] + on_wire_header = on_wire[:header_bytes] + self._test_decode_header(user_header, on_wire_header) + if user_header.startswith('field_'): + return # not supported + self._test_encode_header(user_header, on_wire_header) + + def test_basic_nomask(self): + user = ('ipv4_src', '192.0.2.1') + on_wire = ( + b'\x80\x00\x16\x04' + b'\xc0\x00\x02\x01' + ) + self._test(user, on_wire, 4) + + def test_basic_mask(self): + user = ('ipv4_src', ('192.0.2.1', '255.255.0.0')) + on_wire = ( + b'\x80\x00\x17\x08' + b'\xc0\x00\x02\x01' + b'\xff\xff\x00\x00' + ) + self._test(user, on_wire, 4) + + def test_exp_nomask(self): + user = ('_dp_hash', 0x12345678) + on_wire = ( + b'\xff\xff\x00\x08' + b'\x00\x00\x23\x20' # Nicira + b'\x12\x34\x56\x78' + ) + self._test(user, on_wire, 8) + + def test_exp_mask(self): + user = ('_dp_hash', (0x12345678, 0x7fffffff)) + on_wire = ( + b'\xff\xff\x01\x0c' + b'\x00\x00\x23\x20' # Nicira + b'\x12\x34\x56\x78' + b'\x7f\xff\xff\xff' + ) + self._test(user, on_wire, 8) + + def test_exp_nomask_2(self): + user = ('tcp_flags', 0x876) + on_wire = ( + b'\xff\xff\x54\x06' + b'\x4f\x4e\x46\x00' # ONF + b'\x08\x76' + ) + self._test(user, on_wire, 8) + + def test_exp_mask_2(self): + user = ('tcp_flags', (0x876, 0x7ff)) + on_wire = ( + b'\xff\xff\x55\x08' + b'\x4f\x4e\x46\x00' # ONF + b'\x08\x76' + b'\x07\xff' + ) + self._test(user, on_wire, 8) + + def test_exp_nomask_3(self): + user = ('actset_output', 0x98765432) + on_wire = ( + b'\xff\xff\x56\x08' + b'\x4f\x4e\x46\x00' # ONF + b'\x98\x76\x54\x32' + ) + self._test(user, on_wire, 8) + + def test_exp_mask_3(self): + user = ('actset_output', (0x98765432, 0xfffffffe)) + on_wire = ( + b'\xff\xff\x57\x0c' + b'\x4f\x4e\x46\x00' # ONF + b'\x98\x76\x54\x32' + b'\xff\xff\xff\xfe' + ) + self._test(user, on_wire, 8) + + def test_nxm_1_nomask(self): + user = ('tun_ipv4_src', '192.0.2.1') + on_wire = ( + b'\x00\x01\x3e\x04' + b'\xc0\x00\x02\x01' + ) + self._test(user, on_wire, 4) + + def test_nxm_1_mask(self): + user = ('tun_ipv4_src', ('192.0.2.1', '255.255.0.0')) + on_wire = ( + b'\x00\x01\x3f\x08' + b'\xc0\x00\x02\x01' + b'\xff\xff\x00\x00' + ) + self._test(user, on_wire, 4) + + def test_ext_256_nomask(self): + user = ('pbb_uca', 50) + on_wire = ( + b'\xff\xff\x00\x07' + b'\x4f\x4e\x46\x00' # ONF + b'\x0a\x00' + b'\x32' + ) + self._test(user, on_wire, 10) + + def test_ext_256_mask(self): + user = ('pbb_uca', (50, 51)) + on_wire = ( + b'\xff\xff\x01\x08' + b'\x4f\x4e\x46\x00' # ONF + b'\x0a\x00' + b'\x32' + b'\x33' + ) + self._test(user, on_wire, 10) + + def test_basic_unknown_nomask(self): + user = ('field_100', 'aG9nZWhvZ2U=') + on_wire = ( + b'\x00\x00\xc8\x08' + b'hogehoge' + ) + self._test(user, on_wire, 4) + + def test_basic_unknown_mask(self): + user = ('field_100', ('aG9nZWhvZ2U=', 'ZnVnYWZ1Z2E=')) + on_wire = ( + b'\x00\x00\xc9\x10' + b'hogehoge' + b'fugafuga' + ) + self._test(user, on_wire, 4) |