# --- Revised 3-Clause BSD License --- # Copyright Semtech Corporation 2022. All rights reserved. # # Redistribution and use in source and binary forms, with or without modification, # are permitted provided that the following conditions are met: # # * Redistributions of source code must retain the above copyright notice, # this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above copyright notice, # this list of conditions and the following disclaimer in the documentation # and/or other materials provided with the distribution. # * Neither the name of the Semtech corporation nor the names of its # contributors may be used to endorse or promote products derived from this # software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE # DISCLAIMED. IN NO EVENT SHALL SEMTECH CORPORATION. BE LIABLE FOR ANY DIRECT, # INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF # LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. from typing import Any,List,Mapping,MutableMapping,Optional from pathlib import Path import yaml import copy import logging import pprint import struct from id6 import Id6, Eui logger = logging.getLogger('ts2pktfwd') REGION_CONFIG_KEYWORDS = [ 'upchannels', 'DRs' ] STATION_CONFIG_KEYWORDS = [ 'JoinEui', 'NetID', 'bcning', 'regionid' ] # and more .. class Region: def __init__(self, o:Mapping[str,Any]): self.name = o['name'] self.config = o['config'] for kw in REGION_CONFIG_KEYWORDS: assert kw in self.config, 'Missing region config key: %s' % (kw) def __str__(self): return 'Region:%s' % (self.name) class RouterConfig: def __init__(self, routerid:Id6, config:MutableMapping[str,Any]): self.routerid = routerid station = config['station'] self.station = station for kw in STATION_CONFIG_KEYWORDS: assert kw in station, 'Missing station config key in router config: %s' % (kw) regionid = station['regionid'] if regionid not in regionid2region: raise Exception('Inexisting or invalid regionid in router configuration of %s' % (routerid)) region = regionid2region[station['regionid']] station['DRs'] = region.config['DRs'] station['upchannels'] = region.config['upchannels'] self.region = region logger.debug('%s: station config:\n%s' % (self, pprint.pformat(self.station))) self.dr2sfbw = DR2SFBW(station) self.sfbw2dr = SFBW2DR(station) self.RxDelay = 1 region = station['region'] if region == 'EU863': self.RX2DR = 0 self.RX2Freq = 869525000 elif region == 'US902': self.RX2DR = 8 self.RX2Freq = 923300000 else: raise Exception('Unsupported region: %s' % (region)) pktfwd = config['pktfwd'] self.pktfwd = pktfwd if 'gateway_ID' not in pktfwd: self.pktfwd['gateway_ID'] = self.routerid.id else: self.pktfwd['gateway_ID'] = struct.unpack('>q', bytes.fromhex(pktfwd['gateway_ID']))[0] def get_station_config_message(self) -> MutableMapping[str,Any]: return copy.deepcopy(self.station) def get_pktfwd_gateway_ID(self) -> int: return self.pktfwd['gateway_ID'] def get_hwspec(self) -> str: return self.station['hwspec'] def get_regionid(self) -> Any: return self.station['regionid'] def __str__(self) -> str: return 'RouterConfig:%s' % (self.routerid) def DR2SFBW(rconfig) -> Mapping[int,str]: return { i:'SF%dBW%d' % (t[0], t[1]) for i,t in enumerate(rconfig['DRs']) } def SFBW2DR(rconfig) -> Mapping[int,str]: return { 'SF%dBW%d' % (t[0], t[1]):i for i,t in enumerate(rconfig['DRs']) } routerid2config = {} # type:Mapping[Id6,RouterConfig] regionid2region = {} # type:Mapping[Id6,Region] def ini(paths:List[str]) -> None: for s in paths: p = Path(s) if not p.is_dir(): raise Exception('Not a directory: %s' % (s)) for s in paths: p = Path(s) f = p.joinpath('regions.yaml') if f.exists(): regions = yaml.load(f.read_text(), Loader=yaml.SafeLoader) for regionid,o in regions.items(): regionid2region[regionid] = Region(o) logger.info('router_config.ini: loaded regions from %s.' % (f)) break for s in paths: p = Path(s) for f in p.glob('router-*.yaml'): name = f.name if name.endswith('.yaml'): try: routerid = Id6(name[:-5]) if routerid.cat == 'router': rc = RouterConfig(routerid, yaml.load(f.read_text(), Loader=yaml.SafeLoader)) routerid2config[routerid] = rc logger.info('router_config.ini: loaded router configuration from %s.' % (f)) else: logger.info('router_config.ini: ignore file %s.' % (f)) except: logger.info('router_config.ini: ignore file %s.' % (f), exc_info=True) pass def get_router_config(routerid:Id6) -> RouterConfig: if routerid not in routerid2config: raise Exception('No configuration found for router %s' % (routerid)) return routerid2config[routerid] ROUTER_CONFIG_EU863_TRACKNET8_AS_YAML = ''' JoinEui: null NetID: null bcning: null config: {} freq_range: [863000000, 870000000] hwspec: sx1301/1 max_eirp: 16 protocol: 1 region: EU863 regionid: 1000 sx1301_conf: - chan_FSK: {enable: false} chan_Lora_std: {enable: false} chan_multiSF_0: {enable: true, if: -375000, radio: 0} chan_multiSF_1: {enable: true, if: -175000, radio: 0} chan_multiSF_2: {enable: true, if: 25000, radio: 0} chan_multiSF_3: {enable: true, if: 375000, radio: 0} chan_multiSF_4: {enable: true, if: -237500, radio: 1} chan_multiSF_5: {enable: true, if: 237500, radio: 1} chan_multiSF_6: {enable: false} chan_multiSF_7: {enable: false} radio_0: {enable: true, freq: 868475000} radio_1: {enable: true, freq: 869287500} ''' ROUTER_CONFIG_US902_BLOCK0_AS_YAML = ''' JoinEui: null NetID: null bcning: null config: {} freq_range: [902000000, 928000000] hwspec: sx1301/1 max_eirp: 30.0 protocol: 1 region: US902 regionid: 1001 sx1301_conf: - chan_FSK: {enable: false} chan_Lora_std: {bandwidth: 500000, enable: true, if: 300000, radio: 0, spread_factor: 8} chan_multiSF_0: {enable: true, if: -400000, radio: 0} chan_multiSF_1: {enable: true, if: -200000, radio: 0} chan_multiSF_2: {enable: true, if: 0, radio: 0} chan_multiSF_3: {enable: true, if: 200000, radio: 0} chan_multiSF_4: {enable: true, if: 400000, radio: 0} chan_multiSF_5: {enable: true, if: -200000, radio: 1} chan_multiSF_6: {enable: true, if: 0, radio: 1} chan_multiSF_7: {enable: true, if: 200000, radio: 1} radio_0: {enable: true, freq: 902700000} radio_1: {enable: true, freq: 903500000} '''