#!/bin/env python
import os
import sys
import logging as log
import getopt
import atexit
import time
from CanPktHandlerBase import CanPktHandlerBase
from CanPktHandler1 import CanPktHandler1
from NodeIfBase import NodeIfBase
from NodeIfCanStim import NodeIfCanStim
from NodeIfSerial import NodeIfSerial
from NodeIfTCP import NodeIfTCP
from DaemonConfig import DaemonConfig
daemonApp = None
class CanDaemon():
cfg = None
nodeIf = None
ifNotifier = None
terminated = False
command_list = []
command_map = {}
CMDLIST_NAME = 0
CMDLIST_HANDLER = 1
CMDLIST_PARAMINFO = 2
CMDLIST_HELP = 3
logHelp = 'usage:\t log [options]\n\n' \
'\t options:\n' \
'\t level <num>, where: 0 < num < 3\n'
stateHelp = 'usage: state [name/add/rem]'
filterHelp = 'usage: filter [name/add/rem]'
addifHelp = 'usage: addif [name] [options]'
addbridgeHelp = 'usage: addbridge [interface names]'
tcpdHelp = 'usage: tcpd [start/stop/configure] [options]'
tlsdHelp = 'usage: tlsd [start/stop/configure] [options]'
canctldHelp = 'usage: canctld [start/stop/configure] [options]'
simHelp = 'usage: sim [record/play/add/rem/save/load] [options]'
help_command_map = {}
logOptions = {}
ifOptions = {}
bridgeOptions = {}
tcpdOptions = {}
tlsdOptions = {}
canctldOptions = {}
simOptions = {}
logValidOptions = {'level' : ['range', 0, 3]}
ifValidOptions = {'type' : ['alt', 'serial','udp']}
ifSerialOptions = {'' : []}
ifCanStimOptions = {'' : []}
ifTelnetOptions = {'' : []}
ifTcpTlsOptions = {'' : []}
ifUDPOptions = {'' : []}
bridgeValidOptions = {'' : ['']}
tcpdValidOptions = {'' : []}
tlsdValidOptions = {'' : []}
canctldValidOptions = {'' : []}
simValidOptions = {'' : []}
def __init__ (self):
self.command_list = [['help', self.helpCmd, '', 'display help'],
['log', self.logCmd, '<options>', 'log control: \"help log\"'],
['exec', self.execCmd, '<filename>', 'run command listing\n'],
['filter', self.filterCmd, '<cmd>', 'filter commands: \"help filter\"'],
['state', self.stateCmd, '<cmd>', 'state commands: \"help state\"\n'],
['addif', self.ifAddCmd, '<options>', 'add interface: \"help addif\"'],
['remif', self.ifRemCmd, '<name>', 'remove interface'],
['ifup', self.ifUpCmd, '<name>', 'bring up interface'],
['ifdown', self.ifDownCmd, '<name>', 'bring down interface\n'],
['addbrigde', self.addBridgeCmd, '<options>', 'add bridge: \"help addbridge\"'],
['rembridge', self.remBridgeCmd, '<id>', 'remove bridge\n'],
['tcpd', self.tcpdCmd, '<cmd>', 'tcpd server control: \"help tcpd\"'],
['tlsd', self.tlsdCmd, '<cmd>', 'tlsd server control: \"help tlsd\"'],
['canctld', self.canCtldCmd, '<cmd>', 'canctld server control: \"help canctld\"\n'],
['status', self.statusCmd, '', 'show daemon status'],
['stats', self.statsCmd, '', 'show statistics'],
['nodelist', self.nodesCmd, '', 'list can nodes\n'],
['sim', self.simCmd, '<cmd>', 'simulator commands: \"help sim\"']]
index = 0
for cmd in self.command_list:
self.command_map[cmd[0]] = index
index += 1
self.help_command_map = {'log' : self.logHelp,
'filter' : self.filterHelp,
'state' : self.stateHelp,
'addif' : self.addifHelp,
'addbridge' : self.addbridgeHelp,
'tcpd' : self.tcpdHelp,
'tlsd' : self.tlsdHelp,
'canctld' : self.canctldHelp,
'sim' : self.simHelp}
self.cfg = DaemonConfig()
class IfNotifier():
""" Used by if threads to send messages to the main program thread """
parent = None
UNDEFINED = 0
TERMINATE = 1
def __init__(self, parent):
self.parent = parent
def notify(self, msg):
if msg == self.TERMINATE:
print 'Main terminate notify'
else:
print 'UNDEFINED NOTIFY'
def __rightAdjust(self, refstr, str):
spcstr = ''
endpos = 25-len(refstr)
for i in range(1,endpos):
if i == endpos-5:
spcstr += ':'
else:
spcstr += ' '
return (spcstr+str)
def helpCmd(self, *args):
try:
args = args[0]
except:
args = []
if len(args) < 1:
quitStr = 'quit, exit'
print quitStr, self.__rightAdjust(quitStr, 'shutdown pyCanDaemon')
for cmd in self.command_list:
cmdstr = cmd[self.CMDLIST_NAME] + ' ' + cmd[self.CMDLIST_PARAMINFO]
print cmdstr, \
self.__rightAdjust(cmdstr, cmd[self.CMDLIST_HELP])
elif len(args) < 2:
subCmd = args[0]
if self.help_command_map.has_key(subCmd):
print self.help_command_map[subCmd]
else:
print 'no help for ' + subCmd
else:
print 'usage: help [topic]'
def filterCmd(self, *args):
try:
args = args[0]
except:
args = []
log.debug('filterCmd ' + str(args))
if len(args) < 2:
print 'Invalid arguments\n' + self.filterHelp
return
cmd = args[0]
filterName = args[1]
# FIXME: verify
if cmd == 'add':
print 'Importing filter: ' + filterName
self.cfg.filterCfg.importFilter(filterName)
elif cmd == 'rem' or cmd == 'remove':
print 'Deleting filter: ' + filterName
# FIXME: actually delete
raise 'Not implemented'
def stateCmd(self, *args):
try:
args = args[0]
except:
args = []
log.debug('stateCmd ' + str(args))
if len(args) < 2:
print 'Invalid arguments\n' + self.stateHelp
return
cmd = args[0]
spaceName = args[1]
# FIXME: verify
if cmd == 'add':
print 'Importing state space: ' + spaceName
self.cfg.stateSpaceCfg.importSpace(spaceName)
elif cmd == 'rem' or cmd == 'remove':
print 'Deleting state space: ' + spaceName
# FIXME: actually delete statespace
raise 'Not implemented'
def ifAddCmd(self, *args):
raise 'not implemented'
def ifRemCmd(self, *args):
raise 'not implemented'
def ifUpCmd(self, *args):
raise 'not implemented'
def ifDownCmd(self, *args):
raise 'not implemented'
def addBridgeCmd(self, *args):
raise 'not implemented'
def remBridgeCmd(self, *args):
raise 'not implemented'
def tcpdCmd(self, *args):
raise 'not implemented'
def tlsdCmd(self, *args):
raise 'not implemented'
def canCtldCmd(self, *args):
raise 'not implemented'
def statusCmd(self, *args):
raise 'not implemented'
def statsCmd(self, *args):
raise 'not implemented'
def nodesCmd(self, *args):
raise 'not implemented'
def simCmd(self, *args):
raise 'not implemented'
def logCmd(self, *args):
raise 'not implemented'
def execCmd(self, *args):
raise 'not implemented'
def parseCommand(self, cmdstr):
incmd = cmdstr.strip()
cmd = incmd.split(' ')
if len(cmd[0]) < 2:
return
cmd[0] = cmd[0].lower()
if cmd[0] == 'quit' or cmd[0] == 'exit':
self.terminated = True
elif self.command_map.has_key(cmd[0]):
self.command_list[self.command_map[cmd[0]]][self.CMDLIST_HANDLER](cmd[1:])
else:
print 'unknown command: ' + cmd[0]
def exitHelper(self):
if self.nodeIf is not None and self.nodeIf.running():
self.nodeIf.stop()
def exceptHelper(self, type, value, tb):
import traceback
traceback.print_exception(type, value, tb)
print '\nException in main program, shutting down threads'
self.terminated = True
self.exitHelper()
# sys.exit(-1)
def run(self):
try:
myPath = os.path.dirname(__file__)
os.chdir(myPath)
except:
return
print 'INIT: Start logging'
log.basicConfig(level=log.DEBUG)
"""command parameters only dictate verbosity and use of config file"""
print 'INIT: Get config options from command line / config file'
try:
opts, args = getopt.getopt(sys.argv[1:], "ho:v", ["help", "output="])
except getopt.GetoptError:
print 'Invalid usage'
usage()
sys.exit(2)
# output = None
# verbose = False
for o, a in opts:
if o == "-v":
pass
# verbose = True
if o in ("-h", "--help"):
usage()
sys.exit()
if o in ("-o", "--output"):
pass
# output = a
"""load config defaults, or last config if exists"""
"""run startup.cfg"""
# print 'INIT: Loading filters and spaces'
# self.cfg.filterCfg.importFilter('DefaultFilter')
# self.cfg.stateSpaceCfg.importSpace('DefaultStateSpace')
# self.cfg.stateSpaceCfg.loadSpaces()
# self.cfg.filterCfg.loadFilters()
# self.cfg.setupFilterBindings()
# self.cfg.setupFilterChain()
# print 'INIT: Starting selected can interface'
# ''' nodeif thread launch '''
self.ifNotifier = self.IfNotifier(self)
pktHandler = CanPktHandler1(self.cfg)
#
# ifConfig = NodeIfCanStim.DEFAULT_CONFIG
# self.nodeIf = NodeIfCanStim(ifConfig, pktHandler, self.ifNotifier)
# # ifConfig = NodeIfSerial.DEFAULT_CONFIG
ifConfig = NodeIfTCP.DEFAULT_CONFIG
#
atexit.register(self.exitHelper)
sys.excepthook = self.exceptHelper
self.nodeIf = NodeIfTCP(pktHandler, self.ifNotifier, None)
# self.nodeIf = NodeIfSerial(pktHandler, ifConfig)
#
if not self.nodeIf.start():
print 'FATAL: Failed to initialize node interface.'
print 'This may indicate that the interface is unavailable, ' \
'or that you do not have permission to access it.'
sys.exit(-1)
print 'Initialize/gather info on connected can nodes and load associated state'
print 'Start selected TCP and UDP server(s)'
# server threads launch
print 'CanDaemon v1 ready'
print 'Enter command or type \"help\" for a list of commands'
while not self.terminated:
input = raw_input('> ')
self.parseCommand(input)
print 'Shutdown'
# if self.nodeIf.running():
# print 'Stopping If thread'
# self.nodeIf.stop()
# self.cfg.stateSpaceCfg.saveSpaces()
# self.cfg.filterCfg.saveFilters()
print 'Waiting 0.1..'
time.sleep(0.1) # wait for threads
print 'Terminating'
sys.exit(0) # will except if there are threads remaining
#---------------------------------------------------------------------------
def main():
daemonApp = CanDaemon()
# install_thread_excepthook()
daemonApp.run()
#---------------------------------------------------------------------------
if __name__ == '__main__':
__name__ = 'Main'
main()