79 lines
2.1 KiB
Python
79 lines
2.1 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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# TRX Toolkit
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# DATA interface implementation
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#
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# (C) 2017-2018 by Vadim Yanitskiy <axilirator@gmail.com>
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#
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# All Rights Reserved
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import logging as log
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from udp_link import UDPLink
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from data_msg import *
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class DATAInterface(UDPLink):
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def __init__(self, *udp_link_args):
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UDPLink.__init__(self, *udp_link_args)
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log.debug("Init DATA interface (%s)" % self.desc_link())
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def recv_raw_data(self):
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data, _ = self.sock.recvfrom(512)
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return data
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def recv_l12trx_msg(self):
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# Read raw data from socket
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data = self.recv_raw_data()
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# Attempt to parse as a L12TRX message
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try:
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msg = DATAMSG_L12TRX()
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msg.parse_msg(bytearray(data))
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except:
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log.error("Failed to parse a L12TRX message "
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"from R:%s:%u" % (self.remote_addr, self.remote_port))
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return None
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return msg
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def recv_trx2l1_msg(self):
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# Read raw data from socket
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data = self.recv_raw_data()
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# Attempt to parse as a L12TRX message
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try:
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msg = DATAMSG_TRX2L1()
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msg.parse_msg(bytearray(data))
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except:
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log.error("Failed to parse a TRX2L1 message "
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"from R:%s:%u" % (self.remote_addr, self.remote_port))
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return None
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return msg
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def send_msg(self, msg, legacy = False):
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# Validate a message
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if not msg.validate():
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raise ValueError("Message incomplete or incorrect")
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# Generate TRX message
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payload = msg.gen_msg(legacy)
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# Send message
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self.send(payload)
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