Separate files needing GPL license

+ Keep apache license for now, until this is completed:
  https://wiki.fd.io/view/TSC/Relicensing_Procedure
+ Add utilities for switching license comment blocks.
 - They do not preserve attributes, so executable flag is lost.
+ Move the affected files to GPL/.
 + Update paths so files are executed from the new location.
 + Change the way scripts are started to do not require executable flag.
 + Employ OptionString when constructing longer command lines.
+ Move also PacketVerifier.py and TrafficScriptArg.py
  as they are linked with traffic scripts.
 + That means the two files are outside "resources" package tree now.
 + Added __init__.py files so relative imports work in new package tree.
+ Start traffic scripts as python modules to allow relative imports.
 + Once again needed because they are outside the default PYTHONPATH.

Change-Id: Ieb135629e890adbaf5b79497570f3be25b746f9f
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

1 files changed, 0 insertions, 104 deletions

diff --git a/resources/tools/trex/trex_stateless_stop.py b/resources/tools/trex/trex_stateless_stop.py
deleted file mode 100755
index 5e8721d28c..0000000000
--- a/resources/tools/trex/trex_stateless_stop.py
+++ /dev/null
@@ -1,104 +0,0 @@
-#!/usr/bin/python3
-
-# Copyright (c) 2020 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.
-
-"""This script uses T-REX stateless API to drive t-rex instance.
-
-Requirements:
-- T-REX: https://github.com/cisco-system-traffic-generator/trex-core
- - compiled and running T-REX process (eg. ./t-rex-64 -i)
- - trex.stl.api library
-- Script must be executed on a node with T-REX instance
-
-Functionality:
-1. Stop any running traffic
-2. Optionally restore reference counter values.
-3. Return conter differences.
-"""
-
-import argparse
-import json
-import sys
-
-from collections import OrderedDict  # Needed to parse xstats representation.
-
-sys.path.insert(
-    0, u"/opt/trex-core-2.73/scripts/automation/trex_control_plane/interactive/"
-)
-from trex.stl.api import *
-
-
-def main():
-    """Stop traffic if any is running. Report xstats."""
-    parser = argparse.ArgumentParser()
-    parser.add_argument(
-        u"--xstat0", type=str, default=u"",
-        help=u"Reference xstat object if any."
-    )
-    parser.add_argument(
-        u"--xstat1", type=str, default=u"",
-        help=u"Reference xstat object if any."
-    )
-    args = parser.parse_args()
-
-    client = STLClient()
-    try:
-        # connect to server
-        client.connect()
-
-        client.acquire(force=True)
-        # TODO: Support unidirection.
-        client.stop(ports=[0, 1])
-
-        # Read the stats after the test,
-        # we need to update values before the last trial started.
-        if args.xstat0:
-            snapshot = eval(args.xstat0)
-            client.ports[0].get_xstats().reference_stats = snapshot
-        if args.xstat1:
-            snapshot = eval(args.xstat1)
-            client.ports[1].get_xstats().reference_stats = snapshot
-        # Now we can call the official method to get differences.
-        xstats0 = client.get_xstats(0)
-        xstats1 = client.get_xstats(1)
-
-    # If STLError happens, let the script fail with stack trace.
-    finally:
-        client.disconnect()
-
-    print(u"##### statistics port 0 #####")
-    print(json.dumps(xstats0, indent=4, separators=(u",", u": ")))
-    print(u"##### statistics port 1 #####")
-    print(json.dumps(xstats1, indent=4, separators=(u",", u": ")))
-
-    tx_0, rx_0 = xstats0[u"tx_good_packets"], xstats0[u"rx_good_packets"]
-    tx_1, rx_1 = xstats1[u"tx_good_packets"], xstats1[u"rx_good_packets"]
-    lost_a, lost_b = tx_0 - rx_1, tx_1 - rx_0
-
-    print(f"\npackets lost from 0 --> 1:   {lost_a} pkts")
-    print(f"packets lost from 1 --> 0:   {lost_b} pkts")
-
-    total_rcvd, total_sent = rx_0 + rx_1, tx_0 + tx_1
-    total_lost = total_sent - total_rcvd
-    # TODO: Add latency.
-    print(
-        f"rate='unknown', totalReceived={total_rcvd}, totalSent={total_sent}, "
-        f"frameLoss={total_lost}, targetDuration='manual', "
-        f"approximatedDuration='manual', approximatedRate='unknown', "
-        f"latencyStream0(usec)=-1/-1/-1, latencyStream1(usec)=-1/-1/-1"
-    )
-
-
-if __name__ == u"__main__":
-    main()