61 lines
2.7 KiB
Python
61 lines
2.7 KiB
Python
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import os
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import warnings
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import shutil
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from ctypes import sizeof
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from datetime import datetime
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from UniTAP.dev.modules.capturer.result_object import ResultObject
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from UniTAP.dev.modules.capturer.types import CapturedDataType
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from UniTAP.dev.ports.modules.capturer.bulk.private_bulk_types import BulkHeader
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class ResultBulkObject(ResultObject):
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"""
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Class `ResultBulkObject` inherited from class `ResultObject`.
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Class `ResultBulkObject` allows saving captured data to file `save_to_bin_file`.
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Also has all the `ResultObject` functionality.
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"""
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def __init__(self, assume_scrambler_disabled: bool = False):
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super().__init__()
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self.assume_scrambler_disabled = assume_scrambler_disabled
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def save_to_bin_file(self, directory_name: str):
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"""
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Saving captured bulk data to file.
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Args:
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directory_name (str) - path to save
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"""
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if len(self.buffer) > 0:
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if not os.path.exists(directory_name):
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os.makedirs(directory_name)
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else:
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shutil.rmtree(directory_name)
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os.makedirs(directory_name)
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main_link_file = f'capture_{datetime.now().strftime("%Y%m%d_%H%M%S")}.mainlink.bin'
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events_file = f'capture_{datetime.now().strftime("%Y%m%d_%H%M%S")}.events.bin'
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for data in self.buffer:
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if data.type == CapturedDataType.Event:
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e_file = open(os.path.join(directory_name, events_file), 'a+b')
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sync = 0x0B41550B
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e_file.write(sync.to_bytes(length=4, byteorder='little'))
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e_file.write(0x0.to_bytes(length=4, byteorder='little'))
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e_file.write(int(data.data[13] & 0xF).to_bytes(length=4, byteorder='little'))
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e_file.write(int((len(data.data) - 12) / 4).to_bytes(length=4, byteorder='little'))
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e_file.write(data.data[12:])
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elif data.type == CapturedDataType.Bulk:
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b_file = open(os.path.join(directory_name, main_link_file), 'a+b')
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if len(data.data) > sizeof(BulkHeader):
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header = BulkHeader.from_buffer(data.data)
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if self.assume_scrambler_disabled:
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header.Attribute.Packing |= 0x2
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b_file.write(bytearray(header))
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b_file.write(data.data[sizeof(BulkHeader):])
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else:
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warnings.warn("Buffer size is equal 0, without bulk data.")
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def __str__(self):
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return f"Start capture time: {self.start_capture_time}\n" \
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f"End capture time: {self.end_capture_time}\n" \
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f"Timestamp: {self.timestamp.__str__()}\n"
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