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announce.py
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announce.py
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# encoding: utf-8
"""
line/watchdog.py
Created by Thomas Mangin on 2017-07-01.
Copyright (c) 2009-2017 Exa Networks. All rights reserved.
License: 3-clause BSD. (See the COPYRIGHT file)
"""
from exabgp.reactor.api.command.command import Command
from exabgp.reactor.api.command.limit import match_neighbors
from exabgp.reactor.api.command.limit import extract_neighbors
from exabgp.protocol.ip import NoNextHop
from exabgp.bgp.message import OUT
from exabgp.bgp.message.update.attribute import NextHop
from exabgp.configuration.static import ParseStaticRoute
def register_announce ():
pass
@Command.register('text','announce route')
def announce_route (self, reactor, service, line):
def callback ():
try:
descriptions,command = extract_neighbors(line)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
yield True
return
changes = self.api_route(command)
if not changes:
self.log_failure('command could not parse route in : %s' % command)
reactor.processes.answer_error(service)
yield True
return
for change in changes:
if not ParseStaticRoute.check(change):
self.log_message('invalid route for %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
continue
change.nlri.action = OUT.ANNOUNCE
reactor.configuration.inject_change(peers,change)
self.log_message('route added to %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
reactor.processes.answer_done(service)
except ValueError:
self.log_failure('issue parsing the route')
reactor.processes.answer_error(service)
yield True
except IndexError:
self.log_failure('issue parsing the route')
reactor.processes.answer_error(service)
yield True
reactor.asynchronous.schedule(service,line,callback())
return True
@Command.register('text','withdraw route')
def withdraw_route (self, reactor, service, line):
def callback ():
try:
descriptions,command = extract_neighbors(line)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
yield True
return
changes = self.api_route(command)
if not changes:
self.log_failure('command could not parse route in : %s' % command)
reactor.processes.answer_error(service)
yield True
return
for change in changes:
# Change the action to withdraw before checking the route
change.nlri.action = OUT.WITHDRAW
# NextHop is a mandatory field (but we do not require in)
if change.nlri.nexthop is NoNextHop:
change.nlri.nexthop = NextHop('0.0.0.0')
if not ParseStaticRoute.check(change):
self.log_message('invalid route for %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
continue
if reactor.configuration.inject_change(peers,change):
self.log_message('route removed from %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
else:
self.log_failure('route not found on %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
reactor.processes.answer_done(service)
except ValueError:
self.log_failure('issue parsing the route')
reactor.processes.answer_error(service)
yield True
except IndexError:
self.log_failure('issue parsing the route')
reactor.processes.answer_error(service)
yield True
reactor.asynchronous.schedule(service,line,callback())
return True
@Command.register('text','announce vpls')
def announce_vpls (self, reactor, service, line):
def callback ():
try:
descriptions,command = extract_neighbors(line)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
yield True
return
changes = self.api_vpls(command)
if not changes:
self.log_failure('command could not parse vpls in : %s' % command)
reactor.processes.answer_error(service)
yield True
return
for change in changes:
change.nlri.action = OUT.ANNOUNCE
reactor.configuration.inject_change(peers,change)
self.log_message('vpls added to %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
reactor.processes.answer_done(service)
except ValueError:
self.log_failure('issue parsing the vpls')
reactor.processes.answer_error(service)
yield True
except IndexError:
self.log_failure('issue parsing the vpls')
reactor.processes.answer_error(service)
yield True
reactor.asynchronous.schedule(service,line,callback())
return True
@Command.register('text','withdraw vpls')
def withdraw_vpls (self, reactor, service, line):
def callback ():
try:
descriptions,command = extract_neighbors(line)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
yield True
return
changes = self.api_vpls(command)
if not changes:
self.log_failure('command could not parse vpls in : %s' % command)
reactor.processes.answer_error(service)
yield True
return
for change in changes:
change.nlri.action = OUT.WITHDRAW
if reactor.configuration.inject_change(peers,change):
self.log_message('vpls removed from %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
else:
self.log_failure('vpls not found on %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
reactor.processes.answer_done(service)
except ValueError:
self.log_failure('issue parsing the vpls')
reactor.processes.answer_error(service)
yield True
except IndexError:
self.log_failure('issue parsing the vpls')
reactor.processes.answer_error(service)
yield True
reactor.asynchronous.schedule(service,line,callback())
return True
@Command.register('text','announce attribute')
@Command.register('text','announce attributes')
def announce_attributes (self, reactor, service, line):
def callback ():
try:
descriptions,command = extract_neighbors(line)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
yield True
return
changes = self.api_attributes(command,peers)
if not changes:
self.log_failure('command could not parse route in : %s' % command)
reactor.processes.answer_error(service)
yield True
return
for change in changes:
change.nlri.action = OUT.ANNOUNCE
reactor.configuration.inject_change(peers,change)
self.log_message('route added to %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
reactor.processes.answer_done(service)
except ValueError:
self.log_failure('issue parsing the route')
reactor.processes.answer_error(service)
yield True
except IndexError:
self.log_failure('issue parsing the route')
reactor.processes.answer_error(service)
yield True
reactor.asynchronous.schedule(service,line,callback())
return True
@Command.register('text','withdraw attributes')
def withdraw_attribute (self, reactor, service, line):
def callback ():
try:
descriptions,command = extract_neighbors(line)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
yield True
return
changes = self.api_attributes(command,peers)
if not changes:
self.log_failure('command could not parse route in : %s' % command)
reactor.processes.answer_error(service)
yield True
return
for change in changes:
change.nlri.action = OUT.WITHDRAW
if reactor.configuration.inject_change(peers,change):
self.log_message('route removed from %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
else:
self.log_failure('route not found on %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
reactor.processes.answer_done(service)
except ValueError:
self.log_failure('issue parsing the route')
reactor.processes.answer_error(service)
yield True
except IndexError:
self.log_failure('issue parsing the route')
reactor.processes.answer_error(service)
yield True
reactor.asynchronous.schedule(service,line,callback())
return True
@Command.register('text','announce flow')
def announce_flow (self, reactor, service, line):
def callback ():
try:
descriptions,command = extract_neighbors(line)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
yield True
return
changes = self.api_flow(command)
if not changes:
self.log_failure('command could not parse flow in : %s' % command)
reactor.processes.answer_error(service)
yield True
return
for change in changes:
change.nlri.action = OUT.ANNOUNCE
reactor.configuration.inject_change(peers,change)
self.log_message('flow added to %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
reactor.processes.answer_done(service)
except ValueError:
self.log_failure('issue parsing the flow')
reactor.processes.answer_error(service)
yield True
except IndexError:
self.log_failure('issue parsing the flow')
reactor.processes.answer_error(service)
yield True
reactor.asynchronous.schedule(service,line,callback())
return True
@Command.register('text','withdraw flow')
def withdraw_flow (self, reactor, service, line):
def callback ():
try:
descriptions,command = extract_neighbors(line)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
yield True
return
changes = self.api_flow(command)
if not changes:
self.log_failure('command could not parse flow in : %s' % command)
reactor.processes.answer_error(service)
yield True
return
for change in changes:
change.nlri.action = OUT.WITHDRAW
if reactor.configuration.inject_change(peers,change):
self.log_message('flow removed from %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
else:
self.log_failure('flow not found on %s : %s' % (', '.join(peers) if peers else 'all peers',change.extensive()))
yield False
reactor.processes.answer_done(service)
except ValueError:
self.log_failure('issue parsing the flow')
reactor.processes.answer_error(service)
yield True
except IndexError:
self.log_failure('issue parsing the flow')
reactor.processes.answer_error(service)
yield True
reactor.asynchronous.schedule(service,line,callback())
return True
@Command.register('text','announce eor')
def announce_eor (self, reactor, service, command):
def callback (self, command, peers):
family = self.api_eor(command)
if not family:
self.log_failure("Command could not parse eor : %s" % command)
reactor.processes.answer_error(service)
yield True
return
reactor.configuration.inject_eor(peers,family)
self.log_message("Sent to %s : %s" % (', '.join(peers if peers else []) if peers is not None else 'all peers',family.extensive()))
yield False
reactor.processes.answer_done(service)
try:
descriptions,command = extract_neighbors(command)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
return False
reactor.asynchronous.schedule(service,command,callback(self,command,peers))
return True
except ValueError:
self.log_failure('issue parsing the command')
reactor.processes.answer_error(service)
return False
except IndexError:
self.log_failure('issue parsing the command')
reactor.processes.answer_error(service)
return False
@Command.register('text','announce route-refresh')
def announce_refresh (self, reactor, service, command):
def callback (self, command, peers):
refresh = self.api_refresh(command)
if not refresh:
self.log_failure("Command could not parse route-refresh command : %s" % command)
reactor.processes.answer_error(service)
yield True
return
reactor.configuration.inject_refresh(peers,refresh)
self.log_message("Sent to %s : %s" % (', '.join(peers if peers else []) if peers is not None else 'all peers',refresh.extensive()))
yield False
reactor.processes.answer_done(service)
try:
descriptions,command = extract_neighbors(command)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
return False
reactor.asynchronous.schedule(service,command,callback(self,command,peers))
return True
except ValueError:
self.log_failure('issue parsing the command')
reactor.processes.answer_error(service)
return False
except IndexError:
self.log_failure('issue parsing the command')
reactor.processes.answer_error(service)
return False
@Command.register('text','announce operational')
def announce_operational (self, reactor, service, command):
def callback (self, command, peers):
operational = self.api_operational(command)
if not operational:
self.log_failure("Command could not parse operational command : %s" % command)
reactor.processes.answer_error(service)
yield True
return
reactor.configuration.inject_operational(peers,operational)
self.log_message("operational message sent to %s : %s" % (
', '.join(peers if peers else []) if peers is not None else 'all peers',operational.extensive()
)
)
yield False
reactor.processes.answer_done(service)
if (command.split() + ['be','safe'])[2].lower() not in ('asm','adm','rpcq','rpcp','apcq','apcp','lpcq','lpcp'):
reactor.processes.answer_done(service)
return False
try:
descriptions,command = extract_neighbors(command)
peers = match_neighbors(reactor.peers,descriptions)
if not peers:
self.log_failure('no neighbor matching the command : %s' % command)
reactor.processes.answer_error(service)
return False
reactor.asynchronous.schedule(service,command,callback(self,command,peers))
return True
except ValueError:
self.log_failure('issue parsing the command')
reactor.processes.answer_error(service)
return False
except IndexError:
self.log_failure('issue parsing the command')
reactor.processes.answer_error(service)
return False