diff options
| -rw-r--r-- | data/templates/frr-mcast/static_mcast.frr.tmpl | 20 | ||||
| -rw-r--r-- | interface-definitions/protocols-multicast.xml.in | 95 | ||||
| -rwxr-xr-x | src/conf_mode/protocols_static_multicast.py | 115 |
3 files changed, 230 insertions, 0 deletions
diff --git a/data/templates/frr-mcast/static_mcast.frr.tmpl b/data/templates/frr-mcast/static_mcast.frr.tmpl new file mode 100644 index 000000000..86d619ab0 --- /dev/null +++ b/data/templates/frr-mcast/static_mcast.frr.tmpl @@ -0,0 +1,20 @@ +! +{% for route_gr in old_mroute -%} +{% for nh in old_mroute[route_gr] -%} +{% if old_mroute[route_gr][nh] -%} +no ip mroute {{ route_gr }} {{ nh }} {{ old_mroute[route_gr][nh] }} +{% else -%} +no ip mroute {{ route_gr }} {{ nh }} +{% endif -%} +{% endfor -%} +{% endfor -%} +{% for route_gr in mroute -%} +{% for nh in mroute[route_gr] -%} +{% if mroute[route_gr][nh] -%} +ip mroute {{ route_gr }} {{ nh }} {{ mroute[route_gr][nh] }} +{% else -%} +ip mroute {{ route_gr }} {{ nh }} +{% endif -%} +{% endfor -%} +{% endfor -%} +! diff --git a/interface-definitions/protocols-multicast.xml.in b/interface-definitions/protocols-multicast.xml.in new file mode 100644 index 000000000..a06f2b287 --- /dev/null +++ b/interface-definitions/protocols-multicast.xml.in @@ -0,0 +1,95 @@ +<?xml version="1.0"?> +<!-- Multicast static routing configuration --> +<interfaceDefinition> + <node name="protocols"> + <children> + <node name="static"> + <children> + <node name="multicast" owner="${vyos_conf_scripts_dir}/protocols_static_multicast.py"> + <properties> + <help>Multicast static route</help> + </properties> + <children> + <tagNode name="route"> + <properties> + <help>Configure static unicast route into MRIB for multicast RPF lookup</help> + <valueHelp> + <format>ipv4net</format> + <description>Network</description> + </valueHelp> + <constraint> + <validator name="ip-prefix"/> + </constraint> + </properties> + <children> + <tagNode name="next-hop"> + <properties> + <help>Nexthop IPv4 address</help> + <valueHelp> + <format>ipv4</format> + <description>Nexthop IPv4 address</description> + </valueHelp> + <constraint> + <validator name="ipv4-address"/> + </constraint> + </properties> + <children> + <leafNode name="distance"> + <properties> + <help>Distance value for this route</help> + <valueHelp> + <format>1-255</format> + <description>Distance for this route</description> + </valueHelp> + <constraint> + <validator name="numeric" argument="--range 1-255"/> + </constraint> + </properties> + </leafNode> + </children> + </tagNode> + </children> + </tagNode> + <tagNode name="interface-route"> + <properties> + <help>Multicast interface based route</help> + <valueHelp> + <format>ipv4net</format> + <description>Network</description> + </valueHelp> + <constraint> + <validator name="ip-prefix"/> + </constraint> + </properties> + <children> + <tagNode name="next-hop-interface"> + <properties> + <help>Next-hop interface</help> + <completionHelp> + <script>${vyos_completion_dir}/list_interfaces.py</script> + </completionHelp> + </properties> + <children> + <leafNode name="distance"> + <properties> + <help>Distance value for this route</help> + <valueHelp> + <format>1-255</format> + <description>Distance for this route</description> + </valueHelp> + <constraint> + <validator name="numeric" argument="--range 1-255"/> + </constraint> + </properties> + </leafNode> + </children> + </tagNode> + </children> + </tagNode> + </children> + </node> + </children> + </node> + </children> + </node> +</interfaceDefinition> diff --git a/src/conf_mode/protocols_static_multicast.py b/src/conf_mode/protocols_static_multicast.py new file mode 100755 index 000000000..411a130ec --- /dev/null +++ b/src/conf_mode/protocols_static_multicast.py @@ -0,0 +1,115 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2020 VyOS maintainers and contributors +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 or later as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +import os + +from ipaddress import IPv4Address +from sys import exit + +from vyos import ConfigError +from vyos.config import Config +from vyos.util import call +from vyos.template import render + + +config_file = r'/tmp/static_mcast.frr' + +# Get configuration for static multicast route +def get_config(): + conf = Config() + mroute = { + 'old_mroute' : {}, + 'mroute' : {} + } + + base_path = "protocols static multicast" + + if not (conf.exists(base_path) or conf.exists_effective(base_path)): + return None + + conf.set_level(base_path) + + # Get multicast effective routes + for route in conf.list_effective_nodes('route'): + mroute['old_mroute'][route] = {} + for next_hop in conf.list_effective_nodes('route {0} next-hop'.format(route)): + mroute['old_mroute'][route].update({ + next_hop : conf.return_value('route {0} next-hop {1} distance'.format(route, next_hop)) + }) + + # Get multicast effective interface-routes + for route in conf.list_effective_nodes('interface-route'): + if not route in mroute['old_mroute']: + mroute['old_mroute'][route] = {} + for next_hop in conf.list_effective_nodes('interface-route {0} next-hop-interface'.format(route)): + mroute['old_mroute'][route].update({ + next_hop : conf.return_value('interface-route {0} next-hop-interface {1} distance'.format(route, next_hop)) + }) + + # Get multicast routes + for route in conf.list_nodes('route'): + mroute['mroute'][route] = {} + for next_hop in conf.list_nodes('route {0} next-hop'.format(route)): + mroute['mroute'][route].update({ + next_hop : conf.return_value('route {0} next-hop {1} distance'.format(route, next_hop)) + }) + + # Get multicast interface-routes + for route in conf.list_nodes('interface-route'): + if not route in mroute['mroute']: + mroute['mroute'][route] = {} + for next_hop in conf.list_nodes('interface-route {0} next-hop-interface'.format(route)): + mroute['mroute'][route].update({ + next_hop : conf.return_value('interface-route {0} next-hop-interface {1} distance'.format(route, next_hop)) + }) + + return mroute + +def verify(mroute): + if mroute is None: + return None + + for route in mroute['mroute']: + route = route.split('/') + if IPv4Address(route[0]) < IPv4Address('224.0.0.0'): + raise ConfigError(route + " not a multicast network") + +def generate(mroute): + if mroute is None: + return None + + render(config_file, 'frr-mcast/static_mcast.frr.tmpl', mroute) + return None + +def apply(mroute): + if mroute is None: + return None + + if os.path.exists(config_file): + call("sudo vtysh -d staticd -f " + config_file) + os.remove(config_file) + + return None + +if __name__ == '__main__': + try: + c = get_config() + verify(c) + generate(c) + apply(c) + except ConfigError as e: + print(e) + exit(1) |