[dts] [PATCH V1 12/27] framework/pktgen: enable ixNetwork

[yufengmx <yufengx.mo@intel.com>]

parse pcap file/scapy Packet layers content.

Signed-off-by: yufengmx <yufengx.mo@intel.com>
---
 framework/ixia_network/packet_parser.py | 93 +++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 framework/ixia_network/packet_parser.py

diff --git a/framework/ixia_network/packet_parser.py b/framework/ixia_network/packet_parser.py
new file mode 100644
index 00000000..6bb0e2f3
--- /dev/null
+++ b/framework/ixia_network/packet_parser.py
@@ -0,0 +1,93 @@
+# BSD LICENSE
+#
+# Copyright(c) 2010-2021 Intel Corporation. All rights reserved.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+#   * Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in
+#     the documentation and/or other materials provided with the
+#     distribution.
+#   * Neither the name of Intel Corporation nor the names of its
+#     contributors may be used to endorse or promote products derived
+#     from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+import os
+from collections import OrderedDict
+
+from scapy.all import conf
+from scapy.packet import NoPayload
+from scapy.packet import Packet as scapyPacket
+from scapy.fields import ConditionalField
+from scapy.utils import rdpcap
+
+
+class PacketParser(object):
+    ''' parse packet full layers information '''
+
+    def __init__(self):
+        self.packetLayers = OrderedDict()
+        self.framesize = 64
+
+    def _parse_packet_layer(self, pkt_object):
+        ''' parse one packet every layers' fields and value '''
+        if pkt_object is None:
+            return
+
+        self.packetLayers[pkt_object.name] = OrderedDict()
+        for curfield in pkt_object.fields_desc:
+            if isinstance(curfield, ConditionalField) and \
+                    not curfield._evalcond(pkt_object):
+                continue
+            field_value = pkt_object.getfieldval(curfield.name)
+            if isinstance(field_value, scapyPacket) or (curfield.islist and
+                                                        curfield.holds_packets and type(field_value) is list):
+                continue
+            repr_value = curfield.i2repr(pkt_object, field_value)
+            if isinstance(repr_value, str):
+                repr_value = repr_value.replace(os.linesep,
+                                                os.linesep + " " * (len(curfield.name) + 4))
+            self.packetLayers[pkt_object.name][curfield.name] = repr_value
+
+        if isinstance(pkt_object.payload, NoPayload):
+            return
+        else:
+            self._parse_packet_layer(pkt_object.payload)
+
+    def _parse_pcap(self, pcapFile, number=0):
+        ''' parse one packet content '''
+        self.packetLayers = OrderedDict()
+        pcap_pkts = []
+        if isinstance(pcapFile, str):
+            if os.path.exists(pcapFile) is False:
+                warning = "{0} is not exist !".format(pcapFile)
+                raise Exception(warning)
+            pcap_pkts = rdpcap(pcapFile)
+        else:
+            pcap_pkts = pcapFile
+        # parse packets' every layers and fields
+        if len(pcap_pkts) == 0:
+            warning = "{0} is empty".format(pcapFile)
+            raise Exception(warning)
+        elif number >= len(pcap_pkts):
+            warning = "{0} is missing No.{1} packet".format(pcapFile, number)
+            raise Exception(warning)
+        else:
+            self._parse_packet_layer(pcap_pkts[number])
+            self.framesize = len(pcap_pkts[number]) + 4
-- 
2.21.0