/usr/lib/python2.7/dist-packages/scapy/contrib/pnio.py is in python-scapy 2.3.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | # This file is part of Scapy
# Scapy is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# any later version.
#
# Scapy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Scapy. If not, see <http://www.gnu.org/licenses/>.
# Copyright (C) 2016 Gauthier Sebaux
# scapy.contrib.description = ProfinetIO base layer
# scapy.contrib.status = loads
"""
A simple and non exhaustive Profinet IO layer for scapy
"""
# Scapy imports
from scapy.all import Packet, bind_layers, Ether, UDP
from scapy.fields import XShortEnumField
# Some constants
PNIO_FRAME_IDS = {
0x0020:"PTCP-RTSyncPDU-followup",
0x0080:"PTCP-RTSyncPDU",
0xFC01:"Alarm High",
0xFE01:"Alarm Low",
0xFEFC:"DCP-Hello-Req",
0xFEFD:"DCP-Get-Set",
0xFEFE:"DCP-Identify-ReqPDU",
0xFEFF:"DCP-Identify-ResPDU",
0xFF00:"PTCP-AnnouncePDU",
0xFF20:"PTCP-FollowUpPDU",
0xFF40:"PTCP-DelayReqPDU",
0xFF41:"PTCP-DelayResPDU-followup",
0xFF42:"PTCP-DelayFuResPDU",
0xFF43:"PTCP-DelayResPDU",
}
for i in xrange(0x0100, 0x1000):
PNIO_FRAME_IDS[i] = "RT_CLASS_3"
for i in xrange(0x8000, 0xC000):
PNIO_FRAME_IDS[i] = "RT_CLASS_1"
for i in xrange(0xC000, 0xFC00):
PNIO_FRAME_IDS[i] = "RT_CLASS_UDP"
for i in xrange(0xFF80, 0xFF90):
PNIO_FRAME_IDS[i] = "FragmentationFrameID"
#################
## PROFINET IO ##
#################
class ProfinetIO(Packet):
"""Basic PROFINET IO dispatcher"""
fields_desc = [XShortEnumField("frameID", 0, PNIO_FRAME_IDS)]
overload_fields = {
Ether: {"type": 0x8892},
UDP: {"dport": 0x8892},
}
def guess_payload_class(self, payload):
# For frameID in the RT_CLASS_* range, use the RTC packet as payload
if (self.frameID >= 0x0100 and self.frameID < 0x1000) or \
(self.frameID >= 0x8000 and self.frameID < 0xFC00):
from scapy.contrib.pnio_rtc import PNIORealTime
return PNIORealTime
else:
return Packet.guess_payload_class(self, payload)
bind_layers(Ether, ProfinetIO, type=0x8892)
bind_layers(UDP, ProfinetIO, dport=0x8892)
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