From 395e7f8966681dbc84158af908e2f1d33fe99cc8 Mon Sep 17 00:00:00 2001 From: Matej Klotton Date: Tue, 14 Jun 2016 19:35:49 +0200 Subject: CSIT-32: Add Lightweight 4over6 test. Add keywords for configure MAP domanins and rules. Add testcase for check encapsulation IPv4 in IPv6. Change-Id: I52f04a15d982ccba1d35ce9ade9d7f0ce8e7f286 Signed-off-by: Matej Klotton --- resources/test_data/softwire/map_utils.py | 53 +++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 resources/test_data/softwire/map_utils.py (limited to 'resources/test_data/softwire/map_utils.py') diff --git a/resources/test_data/softwire/map_utils.py b/resources/test_data/softwire/map_utils.py new file mode 100644 index 0000000000..58ef551d7a --- /dev/null +++ b/resources/test_data/softwire/map_utils.py @@ -0,0 +1,53 @@ +# Copyright (c) 2016 Cisco and/or its affiliates. +# 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. + +"""Utils for MAP feature.""" + + +def map_port_ranges(psid, length, offset=6): + """Return list of port ranges for given PSID in tuple . + + :param psid: PSID. + :param length: PSID length. + :param offset: PSID offset. + :type psid: int + :type length: int + :type offset: int + :return: List of (min, max) port range tuples inclusive. + :rtype: list + + 0 1 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 + +-----------+-----------+-------+ + Ports in | A | PSID | j | + the CE port set | > 0 | | | + +-----------+-----------+-------+ + | a bits | k bits |m bits | + """ + + port_field_len = 16 + port_field_min = int('0x0000', 16) + port_field_max = int('0xffff', 16) + + a = offset + k = length + m = port_field_len - offset - length + km = k + m + j_max = port_field_max >> a + k + + port_ranges = [] + for A in range(1, (port_field_max >> km) + 1): + port_ranges.append((((A << k) | psid) << m, + ((A << k) | psid) << m | j_max)) + + return port_ranges -- cgit 1.2.3-korg