1 files changed, 132 insertions, 0 deletions
diff --git a/src/conf_mode/interfaces-pppoe.py b/src/conf_mode/interfaces-pppoe.py
new file mode 100755
index 000000000..901ea769c
--- /dev/null
+++ b/src/conf_mode/interfaces-pppoe.py
@@ -0,0 +1,132 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2019-2020 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 sys import exit
+from copy import deepcopy
+from netifaces import interfaces
+
+from vyos.config import Config
+from vyos.configdict import get_interface_dict
+from vyos.configverify import verify_source_interface
+from vyos.configverify import verify_vrf
+from vyos.template import render
+from vyos.util import call
+from vyos import ConfigError
+from vyos import airbag
+airbag.enable()
+
+def get_config():
+    """
+    Retrive CLI config as dictionary. Dictionary can never be empty, as at least the
+    interface name will be added or a deleted flag
+    """
+    conf = Config()
+    base = ['interfaces', 'pppoe']
+    pppoe = get_interface_dict(conf, base)
+
+    # PPPoE is "special" the default MTU is 1492 - update accordingly
+    # as the config_level is already st in get_interface_dict() - we can use []
+    tmp = conf.get_config_dict([], key_mangling=('-', '_'), get_first_key=True)
+    if 'mtu' not in tmp:
+        pppoe['mtu'] = '1492'
+
+    return pppoe
+
+def verify(pppoe):
+    if 'deleted' in pppoe:
+        # bail out early
+        return None
+
+    verify_source_interface(pppoe)
+    verify_vrf(pppoe)
+
+    if {'connect_on_demand', 'vrf'} <= set(pppoe):
+        raise ConfigError('On-demand dialing and VRF can not be used at the same time')
+
+    return None
+
+def generate(pppoe):
+    # set up configuration file path variables where our templates will be
+    # rendered into
+    ifname = pppoe['ifname']
+    config_pppoe = f'/etc/ppp/peers/{ifname}'
+    script_pppoe_pre_up = f'/etc/ppp/ip-pre-up.d/1000-vyos-pppoe-{ifname}'
+    script_pppoe_ip_up = f'/etc/ppp/ip-up.d/1000-vyos-pppoe-{ifname}'
+    script_pppoe_ip_down = f'/etc/ppp/ip-down.d/1000-vyos-pppoe-{ifname}'
+    script_pppoe_ipv6_up = f'/etc/ppp/ipv6-up.d/1000-vyos-pppoe-{ifname}'
+    config_wide_dhcp6c = f'/run/dhcp6c/dhcp6c.{ifname}.conf'
+
+    config_files = [config_pppoe, script_pppoe_pre_up, script_pppoe_ip_up,
+                    script_pppoe_ip_down, script_pppoe_ipv6_up, config_wide_dhcp6c]
+
+    if 'deleted' in pppoe:
+        # stop DHCPv6-PD client
+        call(f'systemctl stop dhcp6c@{ifname}.service')
+        # Hang-up PPPoE connection
+        call(f'systemctl stop ppp@{ifname}.service')
+
+        # Delete PPP configuration files
+        for file in config_files:
+            if os.path.exists(file):
+                os.unlink(file)
+
+        return None
+
+    # Create PPP configuration files
+    render(config_pppoe, 'pppoe/peer.tmpl',
+           pppoe, trim_blocks=True, permission=0o755)
+    # Create script for ip-pre-up.d
+    render(script_pppoe_pre_up, 'pppoe/ip-pre-up.script.tmpl',
+           pppoe, trim_blocks=True, permission=0o755)
+    # Create script for ip-up.d
+    render(script_pppoe_ip_up, 'pppoe/ip-up.script.tmpl',
+           pppoe, trim_blocks=True, permission=0o755)
+    # Create script for ip-down.d
+    render(script_pppoe_ip_down, 'pppoe/ip-down.script.tmpl',
+           pppoe, trim_blocks=True, permission=0o755)
+    # Create script for ipv6-up.d
+    render(script_pppoe_ipv6_up, 'pppoe/ipv6-up.script.tmpl',
+           pppoe, trim_blocks=True, permission=0o755)
+
+    if 'dhcpv6_options' in pppoe and 'pd' in pppoe['dhcpv6_options']:
+        # ipv6.tmpl relies on ifname - this should be made consitent in the
+        # future better then double key-ing the same value
+        render(config_wide_dhcp6c, 'dhcp-client/ipv6.tmpl', pppoe, trim_blocks=True)
+
+    return None
+
+def apply(pppoe):
+    if 'deleted' in pppoe:
+        # bail out early
+        return None
+
+    if 'disable' not in pppoe:
+        # Dial PPPoE connection
+        call('systemctl restart ppp@{ifname}.service'.format(**pppoe))
+
+    return None
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)