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# encoding: utf-8 |
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""" |
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line/rib.py |
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Created by Thomas Mangin on 2017-07-01. |
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Copyright (c) 2009-2017 Exa Networks. All rights reserved. |
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License: 3-clause BSD. (See the COPYRIGHT file) |
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""" |
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from exabgp.reactor.api.command.command import Command |
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from exabgp.reactor.api.command.limit import match_neighbors |
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from exabgp.reactor.api.command.limit import extract_neighbors |
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from exabgp.bgp.message.update.nlri.nlri import NLRI |
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from exabgp.bgp.message.update.nlri.inet import INET |
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from exabgp.bgp.message.update.nlri.flow import Flow |
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from exabgp.bgp.message.update.nlri.vpls import VPLS |
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from exabgp.bgp.message.update.nlri.evpn.nlri import EVPN |
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from exabgp.configuration.environment import environment |
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def register_rib (): |
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pass |
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def _show_adjrib_callback(reactor, service, last, route_type, advertised, rib_name, extensive): |
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def callback (): |
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lines_per_yield = environment.settings().api.chunk |
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if last in ('routes', 'extensive', 'static', 'flow', 'l2vpn'): |
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peers = reactor.peers() |
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else: |
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peers = [n for n in reactor.peers() if 'neighbor %s' % last in n] |
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for key in peers: |
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routes = reactor.neighor_rib(key, rib_name, advertised) |
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while routes: |
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changes, routes = routes[:lines_per_yield], routes[lines_per_yield:] |
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for change in changes: |
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if isinstance(change.nlri, route_type): |
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if extensive: |
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reactor.processes.write(service,'%s %s %s' % (reactor.neighbor_name(key),'%s %s' % change.nlri.family(),change.extensive())) |
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else: |
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reactor.processes.write(service,'neighbor %s %s %s' % (reactor.neighbor_ip(key),'%s %s' % change.nlri.family(),str(change.nlri))) |
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yield True |
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reactor.processes.answer_done(service) |
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return callback |
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@Command.register('text', 'show adj-rib out', False, ['extensive', ]) |
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@Command.register('text', 'show adj-rib in', False, ['extensive', ]) |
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def show_adj_rib (self, reactor, service, line): |
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words = line.split() |
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extensive = line.endswith(' extensive') |
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try: |
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rib = words[2] |
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if not rib in ('in','out'): |
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reactor.processes.answer_error(service) |
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return False |
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except IndexError: |
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if words[1] == 'adj-rib-in': |
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rib = 'in' |
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elif words[1] == 'adj-rib-out': |
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rib = 'out' |
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else: |
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reactor.processes.answer_error(service) |
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return False |
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if rib not in ('in','out'): |
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reactor.processes.answer_error(service) |
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return False |
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klass = NLRI |
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if 'inet' in words: |
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klass = INET |
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elif 'flow' in words: |
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klass = Flow |
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elif 'l2vpn' in words: |
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klass = (VPLS, EVPN) |
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for remove in ('show','adj-rib','adj-rib-in','adj-rib-out','in','out','extensive'): |
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if remove in words: |
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words.remove(remove) |
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last = '' if not words else words[0] |
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callback = _show_adjrib_callback(reactor, service, last, klass, False, rib, extensive) |
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reactor.asynchronous.schedule(service, line, callback()) |
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return True |
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@Command.register('text','flush adj-rib out') |
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def flush_adj_rib_out (self, reactor, service, line): |
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def callback (self, peers): |
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self.log_message("Flushing adjb-rib out for %s" % ', '.join(peers if peers else []) if peers is not None else 'all peers') |
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for peer_name in peers: |
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reactor.neighbor_rib_resend(peer_name) |
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yield False |
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reactor.processes.answer_done(service) |
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try: |
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descriptions,command = extract_neighbors(line) |
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peers = match_neighbors(reactor.peers(),descriptions) |
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if not peers: |
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self.log_failure('no neighbor matching the command : %s' % command,'warning') |
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reactor.processes.answer_error(service) |
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return False |
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reactor.asynchronous.schedule(service, command, callback(self, peers)) |
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return True |
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except ValueError: |
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self.log_failure('issue parsing the command') |
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reactor.processes.answer_error(service) |
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return False |
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except IndexError: |
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self.log_failure('issue parsing the command') |
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reactor.processes.answer_error(service) |
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return False |
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@Command.register('text','clear adj-rib') |
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def clear_adj_rib (self, reactor, service, line): |
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def callback (self, peers, direction): |
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self.log_message("clearing adjb-rib-%s for %s" % (direction,', '.join(peers if peers else []) if peers is not None else 'all peers')) |
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for peer_name in peers: |
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if direction == 'out': |
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reactor.neighbor_rib_out_withdraw(peer_name) |
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else: |
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reactor.neighbor_rib_in_clear(peer_name) |
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yield False |
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reactor.processes.answer_done(service) |
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try: |
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descriptions,command = extract_neighbors(line) |
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peers = match_neighbors(reactor.peers(),descriptions) |
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if not peers: |
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self.log_failure('no neighbor matching the command : %s' % command,'warning') |
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reactor.processes.answer_error(service) |
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return False |
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words = line.split() |
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direction = 'in' if 'adj-rib-in' in words or 'in' in words else 'out' |
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reactor.asynchronous.schedule(service, command, callback(self, peers, direction)) |
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return True |
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except ValueError: |
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self.log_failure('issue parsing the command') |
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reactor.processes.answer_error(service) |
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return False |
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except IndexError: |
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self.log_failure('issue parsing the command') |
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reactor.processes.answer_error(service) |
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return False |
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Exa-Networks /
exabgp
