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, 288 insertions, 0 deletions

diff --git a/GPL/traffic_profiles/trex/trex-sl-dot1qip4vxlan-ip4src1udpsrcrnd.py b/GPL/traffic_profiles/trex/trex-sl-dot1qip4vxlan-ip4src1udpsrcrnd.py
new file mode 100644
index 0000000000..1e78cd3cae
--- /dev/null
+++ b/GPL/traffic_profiles/trex/trex-sl-dot1qip4vxlan-ip4src1udpsrcrnd.py
@@ -0,0 +1,288 @@
+# 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.
+
+"""Stream profile for T-rex traffic generator.
+
+Stream profile:
+ - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
+ - Packet: ETH / DOT1Q / IP / VXLAN / ETH / IP
+ - Direction 0 --> 1:
+   - VLAN range:                       100
+   - Source IP address:                172.17.0.2
+   - Destination IP address:           172.16.0.1
+   - Source UDP port:                  random([1024..65535])
+   - Destination UDP port:             4789
+   - VXLAN VNI:                        0
+   - Payload source MAC address:       00:aa:aa:00:00:[00..ff]
+   - Payload source IP address:        10.0.[0..255].2
+   - Payload destination MAC address:  00:bb:bb:00:00:[00..ff]
+   - Payload destination IP address:   10.0.[0..255].1
+ - Direction 1 --> 0:
+   - VLAN range:                       200
+   - Source IP address:                172.27.0.2
+   - Destination IP address:           172.26.0.1
+   - Source UDP port:                  random([1024..65535])
+   - Destination UDP port:             4789
+   - VXLAN VNI:                        0
+   - Payload source MAC address:       00:bb:bb:00:00:[00..ff]
+   - Payload source IP address:        10.0.[0..255].1
+   - Payload destination MAC address:  00:aa:aa:00:00:[00..ff]
+   - Payload destination IP address:   10.0.[0..255].2
+"""
+
+from trex.stl.api import *
+from profile_trex_stateless_base_class import TrafficStreamsBaseClass
+
+# RFC 7348 - Virtual eXtensible Local Area Network (VXLAN):
+# A Framework for Overlaying Virtualized Layer 2 Networks over Layer 3 Networks.
+# http://tools.ietf.org/html/rfc7348
+_VXLAN_FLAGS = list(u"R"*24 + u"RRRIRRRRR")
+
+
+class VXLAN(Packet):
+    name=u"VXLAN"
+    fields_desc = [
+        FlagsField(u"flags", 0x08000000, 32, _VXLAN_FLAGS),
+        ThreeBytesField(u"vni", 0),
+        XByteField(u"reserved", 0x00)
+    ]
+
+    def mysummary(self):
+        return self.sprintf(u"VXLAN (vni=%VXLAN.vni%)")
+
+
+bind_layers(UDP, VXLAN, dport=4789)
+bind_layers(VXLAN, Ether)
+
+
+class TrafficStreams(TrafficStreamsBaseClass):
+    """Stream profile."""
+
+    def __init__(self):
+        """Initialization and setting of streams' parameters."""
+
+        super(TrafficStreamsBaseClass, self).__init__()
+
+        self.nf_chains = 1
+
+    def define_packets(self):
+        """Defines the packets to be sent from the traffic generator.
+
+        Packet definition: | ETH | DOT1Q | IP | VXLAN | ETH | IP
+
+        :returns: Packets to be sent from the traffic generator.
+        :rtype: tuple
+        """
+
+        # Direction 0 --> 1
+        base_pkt_a = (
+            Ether()/
+            Dot1Q(
+                vlan=100
+            ) /
+            IP(
+                src=u"172.17.0.2",
+                dst=u"172.16.0.1"
+            )/
+            UDP(
+                sport=1024,
+                dport=4789
+            )/
+            VXLAN(
+                vni=0
+            )/
+            Ether(
+                src=u"00:aa:aa:00:00:00",
+                dst=u"00:bb:bb:00:00:00"
+            )/
+            IP(
+                src=u"10.0.0.2",
+                dst=u"10.0.0.1",
+                proto=61
+            )
+        )
+
+        # Direction 1 --> 0
+        base_pkt_b = (
+            Ether()/
+            Dot1Q(
+                vlan=200
+            ) /
+            IP(
+                src=u"172.27.0.2",
+                dst=u"172.26.0.1"
+            )/
+            UDP(
+                sport=1024,
+                dport=4789
+            )/
+            VXLAN(
+                vni=0
+            )/
+            Ether(
+                src=u"00:bb:bb:00:00:00",
+                dst=u"00:aa:aa:00:00:00"
+            )/
+            IP(
+                src=u"10.0.0.1",
+                dst=u"10.0.0.2",
+                proto=61
+            )
+        )
+
+        # Direction 0 --> 1
+        vm1 = STLScVmRaw(
+            [
+                STLVmFlowVar(
+                    name=u"nf_id",
+                    size=1,
+                    op=u"inc",
+                    min_value=0,
+                    max_value=self.nf_chains - 1
+                ),
+                STLVmFlowVar(
+                    name=u"in_mac",
+                    size=2,
+                    op=u"inc",
+                    min_value=0,
+                    max_value=255
+                ),
+                STLVmFlowVar(
+                    name=u"in_ip",
+                    size=1,
+                    op=u"inc",
+                    min_value=0,
+                    max_value=255
+                ),
+                STLVmFlowVar(
+                    name=u"src_port",
+                    size=2,
+                    op=u"random",
+                    min_value=1024,
+                    max_value=65535
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"nf_id",
+                    pkt_offset=32
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"src_port",
+                    pkt_offset=u"UDP.sport"
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"nf_id",
+                    pkt_offset=52
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"in_mac",
+                    pkt_offset=58
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"in_mac",
+                    pkt_offset=64
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"in_ip",
+                    pkt_offset=82
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"in_ip",
+                    pkt_offset=86
+                ),
+                STLVmFixChecksumHw(
+                    l3_offset="IP:{}".format(0),
+                    l4_offset="UDP:{}".format(0),
+                    l4_type=CTRexVmInsFixHwCs.L4_TYPE_UDP
+                )
+            ]
+        )
+
+        # Direction 1 --> 0
+        vm2 = STLScVmRaw(
+            [
+                STLVmFlowVar(
+                    name=u"nf_id",
+                    size=1,
+                    op=u"inc",
+                    min_value=0,
+                    max_value=self.nf_chains - 1
+                ),
+                STLVmFlowVar(
+                    name=u"in_mac",
+                    size=2,
+                    op=u"inc",
+                    min_value=0,
+                    max_value=255
+                ),
+                STLVmFlowVar(
+                    name=u"in_ip",
+                    size=1,
+                    op=u"inc",
+                    min_value=0,
+                    max_value=255
+                ),
+                STLVmFlowVar(
+                    name=u"src_port",
+                    size=2,
+                    op=u"random",
+                    min_value=1024,
+                    max_value=65535
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"nf_id",
+                    pkt_offset=32
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"src_port",
+                    pkt_offset=u"UDP.sport"
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"nf_id",
+                    pkt_offset=52
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"in_mac",
+                    pkt_offset=58
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"in_mac",
+                    pkt_offset=64
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"in_ip",
+                    pkt_offset=82
+                ),
+                STLVmWrFlowVar(
+                    fv_name=u"in_ip",
+                    pkt_offset=86
+                ),
+                STLVmFixChecksumHw(
+                    l3_offset="IP:{}".format(0),
+                    l4_offset="UDP:{}".format(0),
+                    l4_type=CTRexVmInsFixHwCs.L4_TYPE_UDP
+                )
+            ]
+        )
+
+        return base_pkt_a, base_pkt_b, vm1, vm2
+
+def register():
+    """Register this traffic profile to T-rex.
+
+    Do not change this function.
+
+    :return: Traffic streams.
+    :rtype: Object
+    """
+    return TrafficStreams()
+