mirror of
https://github.com/espressif/openthread.git
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Abtin Keshavarzian
71e00eb20f
This commits updates `thread-cert/Makefile.am` adding some existing tests that were not included in the Makefile when the tests were added. It also sorts the entries to be in alphabetical order. This commit also updates the access control mode for all script files to be executable by all (`chmod 755` or "-rwxr-xr-x").
106 lines
4.0 KiB
Python
Executable File
106 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2018, The OpenThread Authors.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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""" Module to provide codec utilities for .pcap formatters. """
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import os
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import struct
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import time
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# https://www.tcpdump.org/linktypes.html
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DLT_IEEE802_15_4_WITHFCS = 195
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DLT_IEEE802_15_4_TAP = 283
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PCAP_MAGIC_NUMBER = 0xA1B2C3D4
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PCAP_VERSION_MAJOR = 2
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PCAP_VERSION_MINOR = 4
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PACKET_VERIFICATION = int(os.getenv('PACKET_VERIFICATION', 0))
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class PcapCodec(object):
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""" Utility class for .pcap formatters. """
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def __init__(self, filename):
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self._dlt = DLT_IEEE802_15_4_WITHFCS if PACKET_VERIFICATION else DLT_IEEE802_15_4_TAP
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self._pcap_file = open('%s.pcap' % filename, 'wb')
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self._pcap_file.write(self.encode_header())
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def encode_header(self):
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""" Returns a pcap file header. """
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return struct.pack(
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"<LHHLLLL",
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PCAP_MAGIC_NUMBER,
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PCAP_VERSION_MAJOR,
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PCAP_VERSION_MINOR,
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0,
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0,
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256,
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self._dlt,
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)
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def encode_frame(self, frame, sec, usec):
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""" Returns a pcap encapsulation of the given frame. """
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length = 0
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if self._dlt == DLT_IEEE802_15_4_TAP:
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# Append TLVs according to 802.15.4 TAP specification:
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# https://github.com/jkcko/ieee802.15.4-tap
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pcap_tap_fcs_tlv = struct.pack("<HHL", 0, 1, 1)
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pcap_tap_channel_tlv = struct.pack("<HHHH", 3, 3, frame[0], 0)
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length = 4 + len(pcap_tap_fcs_tlv) + len(pcap_tap_channel_tlv)
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pcap_tap_header = struct.pack("<HH", 0, length)
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frame = frame[1:]
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length += len(frame)
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pcap_frame = struct.pack("<LLLL", sec, usec, length, length)
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if self._dlt == DLT_IEEE802_15_4_TAP:
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pcap_frame += pcap_tap_header + pcap_tap_fcs_tlv + pcap_tap_channel_tlv
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pcap_frame += frame
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return pcap_frame
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def _get_timestamp(self):
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""" Returns the internal timestamp. """
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timestamp = time.time()
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timestamp_sec = int(timestamp)
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timestamp_usec = int((timestamp - timestamp_sec) * 1000000)
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return timestamp_sec, timestamp_usec
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def append(self, frame, timestamp=None):
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""" Appends a frame. """
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if timestamp is None:
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timestamp = self._get_timestamp()
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pkt = self.encode_frame(frame, *timestamp)
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self._pcap_file.write(pkt)
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self._pcap_file.flush()
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return pkt
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def __del__(self):
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self._pcap_file.close()
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