28 lines
1.2 KiB
Python
28 lines
1.2 KiB
Python
import logging
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from eive_tmtc.config.definitions import CFDP_APID
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from spacepackets.ccsds import SPACE_PACKET_HEADER_SIZE
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from spacepackets.cfdp import PduFactory, PduType, DirectiveType
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from tmtccmd.cfdp.handler import CfdpInCcsdsHandler
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from tmtccmd.tm import SpecificApidHandlerBase
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_LOGGER = logging.getLogger(__name__)
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class CfdpInCcsdsWrapper(SpecificApidHandlerBase):
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def __init__(self, cfdp_in_ccsds_handler: CfdpInCcsdsHandler):
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super().__init__(CFDP_APID, None)
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self.handler = cfdp_in_ccsds_handler
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def handle_tm(self, packet: bytes, _user_args: any):
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# Ignore the space packet header. Its only purpose is to use the same protocol and
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# have a seaprate APID for space packets. If this function is called, the APID is correct.
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pdu = packet[SPACE_PACKET_HEADER_SIZE:]
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pdu_base = PduFactory.from_raw(pdu)
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if pdu_base.pdu_type == PduType.FILE_DATA:
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_LOGGER.info("Received File Data PDU")
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else:
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directive_type = DirectiveType(pdu_base.directive_type)
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_LOGGER.info(f"Received File Directive PDU with type {directive_type!r}")
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self.handler.insert_pdu_packet(pdu_base)
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