Merge branch 'ipoe-server' of github.com:c-po/vyos-1x into current

* 'ipoe-server' of github.com:c-po/vyos-1x:
  pppoe-server: T2314: fix RADIUS migration
  vyos.configtree: bugfix exception message used non existent variable
  ipoe-server: T2324: migrate RADIUS configuration to common CLI syntax
  ipoe-server: T2324: migrate IPv4/IPv6 name-servers to common node
  ipoe-server: T2324: remove boilerplate code and adjust to other accel implementations
  router-advert: rename XML/Python files for a common pattern
  ipoe-server: rename XML/Python files for a common pattern

6 files changed, 396 insertions, 290 deletions

diff --git a/src/conf_mode/service-ipoe.py b/src/conf_mode/service-ipoe.py
deleted file mode 100755
index 76aa80a10..000000000
--- a/src/conf_mode/service-ipoe.py
+++ /dev/null
@@ -1,284 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2018-2020 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
-import re
-
-from sys import exit
-from time import sleep
-
-from stat import S_IRUSR, S_IWUSR, S_IRGRP
-from vyos.config import Config
-from vyos import ConfigError
-from vyos.util import call
-from vyos.template import render
-
-
-ipoe_conf = '/run/accel-pppd/ipoe.conf'
-ipoe_chap_secrets = '/run/accel-pppd/ipoe.chap-secrets'
-
-
-def _get_cpu():
-    cpu_cnt = 1
-    if os.cpu_count() == 1:
-        cpu_cnt = 1
-    else:
-        cpu_cnt = int(os.cpu_count()/2)
-    return cpu_cnt
-
-
-def get_config():
-    c = Config()
-    if not c.exists(['service', 'ipoe-server']):
-        return None
-
-    config_data = {
-        'chap_secrets_file' : ipoe_chap_secrets
-    }
-
-    c.set_level(['service', 'ipoe-server'])
-    config_data['interfaces'] = {}
-    for intfc in c.list_nodes(['interface']):
-        config_data['interfaces'][intfc] = {
-            'mode': 'L2',
-            'shared': '1',
-            # may need a conifg option, can be dhcpv4 or up for unclassified pkts
-            'sess_start': 'dhcpv4',
-            'range': None,
-            'ifcfg': '1',
-            'vlan_mon': []
-        }
-        config_data['dns'] = {
-            'server1': None,
-            'server2': None
-        }
-        config_data['dnsv6'] = {
-            'server1': None,
-            'server2': None,
-            'server3': None
-        }
-        config_data['ipv6'] = {
-            'prfx': [],
-            'pd': [],
-        }
-        config_data['auth'] = {
-            'auth_if': {},
-            'mech': 'noauth',
-            'radius': {},
-            'radsettings': {
-                'dae-server': {}
-            }
-        }
-
-        if c.exists(['interface', intfc, 'network-mode']):
-            config_data['interfaces'][intfc]['mode'] = c.return_value(
-                ['interface', intfc, 'network-mode'])
-        if c.return_value(['interface', intfc, 'network']) == 'vlan':
-            config_data['interfaces'][intfc]['shared'] = '0'
-            if c.exists(['interface', intfc, 'vlan-id']):
-                config_data['interfaces'][intfc]['vlan_mon'] += c.return_values(
-                    ['interface', intfc, 'vlan-id'])
-            if c.exists(['interface', intfc, 'vlan-range']):
-                config_data['interfaces'][intfc]['vlan_mon'] += c.return_values(
-                    ['interface', intfc, 'vlan-range'])
-        if c.exists(['interface', intfc, 'client-subnet']):
-            config_data['interfaces'][intfc]['range'] = c.return_value(
-                ['interface', intfc, 'client-subnet'])
-        if c.exists(['dns-server', 'server-1']):
-            config_data['dns']['server1'] = c.return_value(
-                ['dns-server', 'server-1'])
-        if c.exists(['dns-server', 'server-2']):
-            config_data['dns']['server2'] = c.return_value(
-                ['dns-server', 'server-2'])
-        if c.exists(['dnsv6-server', 'server-1']):
-            config_data['dnsv6']['server1'] = c.return_value(
-                ['dnsv6-server', 'server-1'])
-        if c.exists(['dnsv6-server', 'server-2']):
-            config_data['dnsv6']['server2'] = c.return_value(
-                ['dnsv6-server', 'server-2'])
-        if c.exists(['dnsv6-server', 'server-3']):
-            config_data['dnsv6']['server3'] = c.return_value(
-                ['dnsv6-server', 'server-3'])
-        if not c.exists(['authentication', 'mode', 'noauth']):
-            config_data['auth']['mech'] = c.return_value(
-                ['authentication', 'mode'])
-        if c.exists(['authentication', 'mode', 'local']):
-            for auth_int in c.list_nodes(['authentication', 'interface']):
-                for mac in c.list_nodes(['authentication', 'interface', auth_int, 'mac-address']):
-                    config_data['auth']['auth_if'][auth_int] = {}
-                    if c.exists(['authentication', 'interface', auth_int, 'mac-address',  mac, 'rate-limit']):
-                        config_data['auth']['auth_if'][auth_int][mac] = {}
-                        config_data['auth']['auth_if'][auth_int][mac]['up'] = c.return_value(
-                            ['authentication', 'interface', auth_int, 'mac-address', mac, 'rate-limit upload'])
-                        config_data['auth']['auth_if'][auth_int][mac]['down'] = c.return_value(
-                            ['authentication', 'interface', auth_int, 'mac-address', 'mac', 'rate-limit download'])
-                    else:
-                        config_data['auth']['auth_if'][auth_int][mac] = {}
-                        config_data['auth']['auth_if'][auth_int][mac]['up'] = None
-                        config_data['auth']['auth_if'][auth_int][mac]['down'] = None
-                    # client vlan-id
-                    if c.exists(['authentication', 'interface', auth_int, 'mac-address', mac, 'vlan-id']):
-                        config_data['auth']['auth_if'][auth_int][mac]['vlan'] = c.return_value(
-                            ['authentication', 'interface', auth_int, 'mac-address', mac, 'vlan-id'])
-        if c.exists(['authentication', 'mode',  'radius']):
-            for rsrv in c.list_nodes(['authentication', 'radius-server']):
-                config_data['auth']['radius'][rsrv] = {}
-                if c.exists(['authentication', 'radius-server', rsrv, 'secret']):
-                    config_data['auth']['radius'][rsrv]['secret'] = c.return_value(
-                        ['authentication', 'radius-server', rsrv, 'secret'])
-                else:
-                    config_data['auth']['radius'][rsrv]['secret'] = None
-                if c.exists(['authentication', 'radius-server', rsrv, 'fail-time']):
-                    config_data['auth']['radius'][rsrv]['fail-time'] = c.return_value(
-                        ['authentication', 'radius-server', rsrv, 'fail-time'])
-                else:
-                    config_data['auth']['radius'][rsrv]['fail-time'] = '0'
-                if c.exists(['authentication', 'radius-server', rsrv, 'req-limit']):
-                    config_data['auth']['radius'][rsrv]['req-limit'] = c.return_value(
-                        ['authentication', 'radius-server', rsrv, 'req-limit'])
-                else:
-                    config_data['auth']['radius'][rsrv]['req-limit'] = '0'
-            if c.exists(['authentication', 'radius-settings']):
-                if c.exists(['authentication', 'radius-settings', 'timeout']):
-                    config_data['auth']['radsettings']['timeout'] = c.return_value(
-                        ['authentication', 'radius-settings', 'timeout'])
-                if c.exists(['authentication', 'radius-settings', 'nas-ip-address']):
-                    config_data['auth']['radsettings']['nas-ip-address'] = c.return_value(
-                        ['authentication', 'radius-settings', 'nas-ip-address'])
-                if c.exists(['authentication', 'radius-settings', 'nas-identifier']):
-                    config_data['auth']['radsettings']['nas-identifier'] = c.return_value(
-                        ['authentication', 'radius-settings', 'nas-identifier'])
-                if c.exists(['authentication', 'radius-settings', 'max-try']):
-                    config_data['auth']['radsettings']['max-try'] = c.return_value(
-                        ['authentication', 'radius-settings', 'max-try'])
-                if c.exists(['authentication', 'radius-settings', 'acct-timeout']):
-                    config_data['auth']['radsettings']['acct-timeout'] = c.return_value(
-                        ['authentication', 'radius-settings', 'acct-timeout'])
-                if c.exists(['authentication', 'radius-settings', 'dae-server', 'ip-address']):
-                    config_data['auth']['radsettings']['dae-server']['ip-address'] = c.return_value(
-                        ['authentication', 'radius-settings', 'dae-server', 'ip-address'])
-                if c.exists(['authentication', 'radius-settings', 'dae-server', 'port']):
-                    config_data['auth']['radsettings']['dae-server']['port'] = c.return_value(
-                        ['authentication', 'radius-settings', 'dae-server', 'port'])
-                if c.exists(['authentication', 'radius-settings', 'dae-server', 'secret']):
-                    config_data['auth']['radsettings']['dae-server']['secret'] = c.return_value(
-                        ['authentication', 'radius-settings', 'dae-server', 'secret'])
-
-        if c.exists(['client-ipv6-pool', 'prefix']):
-            config_data['ipv6']['prfx'] = c.return_values(
-                ['client-ipv6-pool', 'prefix'])
-        if c.exists(['client-ipv6-pool', 'delegate-prefix']):
-            config_data['ipv6']['pd'] = c.return_values(
-                ['client-ipv6-pool', 'delegate-prefix'])
-
-    return config_data
-
-
-def generate(ipoe):
-    if not ipoe:
-        return None
-
-    dirname = os.path.dirname(ipoe_conf)
-    if not os.path.exists(dirname):
-        os.mkdir(dirname)
-
-    ipoe['thread_cnt'] = _get_cpu()
-    render(ipoe_conf, 'ipoe-server/ipoe.config.tmpl', ipoe, trim_blocks=True)
-
-    if ipoe['auth']['mech'] == 'local':
-        render(ipoe_chap_secrets, 'ipoe-server/chap-secrets.tmpl', ipoe)
-        os.chmod(ipoe_chap_secrets, S_IRUSR | S_IWUSR | S_IRGRP)
-
-    else:
-        if os.path.exists(ipoe_chap_secrets):
-             os.unlink(ipoe_chap_secrets)
-
-    return None
-
-
-def verify(c):
-    if c == None or not c:
-        return None
-
-    if not c['interfaces']:
-        raise ConfigError("service ipoe-server interface requires a value")
-
-    for intfc in c['interfaces']:
-        if not c['interfaces'][intfc]['range']:
-            raise ConfigError("service ipoe-server interface " +
-                              intfc + " client-subnet needs a value")
-
-    if c['auth']['mech'] == 'radius':
-        if not c['auth']['radius']:
-            raise ConfigError(
-                "service ipoe-server authentication radius-server requires a value for authentication mode radius")
-        else:
-            for radsrv in c['auth']['radius']:
-                if not c['auth']['radius'][radsrv]['secret']:
-                    raise ConfigError(
-                        "service ipoe-server authentication radius-server " + radsrv + " secret requires a value")
-
-    if c['auth']['radsettings']['dae-server']:
-        try:
-            if c['auth']['radsettings']['dae-server']['ip-address']:
-                pass
-        except:
-            raise ConfigError(
-                "service ipoe-server authentication radius-settings dae-server ip-address value required")
-        try:
-            if c['auth']['radsettings']['dae-server']['secret']:
-                pass
-        except:
-            raise ConfigError(
-                "service ipoe-server authentication radius-settings dae-server secret value required")
-        try:
-            if c['auth']['radsettings']['dae-server']['port']:
-                pass
-        except:
-            raise ConfigError(
-                "service ipoe-server authentication radius-settings dae-server port value required")
-
-    if len(c['ipv6']['pd']) != 0 and len(c['ipv6']['prfx']) == 0:
-        raise ConfigError(
-            "service ipoe-server client-ipv6-pool prefix needs a value")
-
-    return c
-
-
-def apply(ipoe):
-    if ipoe == None:
-        call('systemctl stop accel-ppp@ipoe.service')
-
-        if os.path.exists(ipoe_conf):
-             os.unlink(ipoe_conf)
-
-        if os.path.exists(ipoe_chap_secrets):
-             os.unlink(ipoe_chap_secrets)
-
-        return None
-
-    call('systemctl restart accel-ppp@ipoe.service')
-
-
-if __name__ == '__main__':
-    try:
-        c = get_config()
-        verify(c)
-        generate(c)
-        apply(c)
-    except ConfigError as e:
-        print(e)
-        exit(1)
diff --git a/src/conf_mode/service_ipoe-server.py b/src/conf_mode/service_ipoe-server.py
new file mode 100755
index 000000000..958fbd561
--- /dev/null
+++ b/src/conf_mode/service_ipoe-server.py
@@ -0,0 +1,285 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2018-2020 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
+import re
+
+from copy import deepcopy
+from stat import S_IRUSR, S_IWUSR, S_IRGRP
+from sys import exit
+
+from vyos.config import Config
+from vyos.template import render
+from vyos.util import call, get_half_cpus
+from vyos.validate import is_ipv4
+from vyos import ConfigError
+
+ipoe_conf = '/run/accel-pppd/ipoe.conf'
+ipoe_chap_secrets = '/run/accel-pppd/ipoe.chap-secrets'
+
+default_config_data = {
+    'auth_mode': 'local',
+    'auth_interfaces': [],
+    'chap_secrets_file': ipoe_chap_secrets, # used in Jinja2 template
+    'interfaces': [],
+    'dnsv4': [],
+    'dnsv6': [],
+    'client_ipv6_pool': [],
+    'client_ipv6_delegate_prefix': [],
+    'radius_server': [],
+    'radius_acct_tmo': '3',
+    'radius_max_try': '3',
+    'radius_timeout': '3',
+    'radius_nas_id': '',
+    'radius_nas_ip': '',
+    'radius_source_address': '',
+    'radius_shaper_attr': '',
+    'radius_shaper_vendor': '',
+    'radius_dynamic_author': '',
+    'thread_cnt': get_half_cpus()
+}
+
+def get_config():
+    conf = Config()
+    base_path = ['service', 'ipoe-server']
+    if not conf.exists(base_path):
+        return None
+
+    conf.set_level(base_path)
+    ipoe = deepcopy(default_config_data)
+
+    for interface in conf.list_nodes(['interface']):
+        tmp  = {
+            'mode': 'L2',
+            'name': interface,
+            'shared': '1',
+            # may need a config option, can be dhcpv4 or up for unclassified pkts
+            'sess_start': 'dhcpv4',
+            'range': None,
+            'ifcfg': '1',
+            'vlan_mon': []
+        }
+
+        conf.set_level(base_path + ['interface', interface])
+
+        if conf.exists(['network-mode']):
+            tmp['mode'] = conf.return_value(['network-mode'])
+
+        if conf.exists(['network']):
+            mode = conf.return_value(['network'])
+            if mode == 'vlan':
+                tmp['shared'] = '0'
+
+                if conf.exists(['vlan-id']):
+                    tmp['vlan_mon'] += conf.return_values(['vlan-id'])
+
+                if conf.exists(['vlan-range']):
+                    tmp['vlan_mon'] += conf.return_values(['vlan-range'])
+
+        if conf.exists(['client-subnet']):
+            tmp['range'] = conf.return_value(['client-subnet'])
+
+        ipoe['interfaces'].append(tmp)
+
+    conf.set_level(base_path)
+
+    if conf.exists(['name-server']):
+        for name_server in conf.return_values(['name-server']):
+            if is_ipv4(name_server):
+                ipoe['dnsv4'].append(name_server)
+            else:
+                ipoe['dnsv6'].append(name_server)
+
+    if conf.exists(['authentication', 'mode']):
+        ipoe['auth_mode'] = conf.return_value(['authentication', 'mode'])
+
+    if conf.exists(['authentication', 'interface']):
+        for interface in conf.list_nodes(['authentication', 'interface']):
+            tmp = {
+                'name': interface,
+                'mac': []
+            }
+            for client in conf.list_nodes(base_path + ['authentication', 'interface', interface, 'mac-address']):
+                mac = {
+                    'address': mac,
+                    'rate_download': '',
+                    'rate_upload': '',
+                    'vlan_id': ''
+                }
+                conf.set_level(base_path + ['authentication', 'interface', interface, 'mac-address', client])
+
+                if conf.exists(['rate-limit', 'download']):
+                    mac['rate_download'] = conf.return_value(['rate-limit', 'download'])
+
+                if conf.exists(['rate-limit', 'upload']):
+                    mac['rate_upload'] = conf.return_value(['rate-limit', 'upload'])
+
+                if conf.exists(['vlan-id']):
+                    mac['vlan'] = conf.return_value(['vlan-id'])
+
+                tmp['mac'].append(mac)
+
+            ipoe['auth_interfaces'].append(tmp)
+
+    #
+    # authentication mode radius servers and settings
+    if conf.exists(['authentication', 'mode', 'radius']):
+        for server in conf.list_nodes(['authentication', 'radius', 'server']):
+            radius = {
+                'server' : server,
+                'key' : '',
+                'fail_time' : 0,
+                'port' : '1812'
+            }
+
+            conf.set_level(base_path + ['authentication', 'radius', 'server', server])
+
+            if conf.exists(['fail-time']):
+                radius['fail-time'] = conf.return_value(['fail-time'])
+
+            if conf.exists(['port']):
+                radius['port'] = conf.return_value(['port'])
+
+            if conf.exists(['key']):
+                radius['key'] = conf.return_value(['key'])
+
+            if not conf.exists(['disable']):
+                ipoe['radius_server'].append(radius)
+
+    #
+    # advanced radius-setting
+    conf.set_level(base_path + ['authentication', 'radius'])
+    if conf.exists(['acct-timeout']):
+        ipoe['radius_acct_tmo'] = conf.return_value(['acct-timeout'])
+
+    if conf.exists(['max-try']):
+        ipoe['radius_max_try'] = conf.return_value(['max-try'])
+
+    if conf.exists(['timeout']):
+        ipoe['radius_timeout'] = conf.return_value(['timeout'])
+
+    if conf.exists(['nas-identifier']):
+        ipoe['radius_nas_id'] = conf.return_value(['nas-identifier'])
+
+    if conf.exists(['nas-ip-address']):
+        ipoe['radius_nas_ip'] = conf.return_value(['nas-ip-address'])
+
+    if conf.exists(['source-address']):
+        ipoe['radius_source_address'] = conf.return_value(['source-address'])
+
+    # Dynamic Authorization Extensions (DOA)/Change Of Authentication (COA)
+    if conf.exists(['dynamic-author']):
+        dae = {
+            'port' : '',
+            'server' : '',
+            'key' : ''
+        }
+
+        if conf.exists(['dynamic-author', 'ip-address']):
+            dae['server'] = conf.return_value(['dynamic-author', 'ip-address'])
+
+        if conf.exists(['dynamic-author', 'port']):
+            dae['port'] = conf.return_value(['dynamic-author', 'port'])
+
+        if conf.exists(['dynamic-author', 'secret']):
+            dae['key'] = conf.return_value(['dynamic-author', 'secret'])
+
+        ipoe['radius_dynamic_author'] = dae
+
+
+    conf.set_level(base_path)
+    if conf.exists(['client-ipv6-pool', 'prefix']):
+        ipoe['client_ipv6_pool'] = conf.return_values(['client-ipv6-pool', 'prefix'])
+
+    if conf.exists(['client-ipv6-pool', 'delegate-prefix']):
+        ipoe['client_ipv6_delegate_prefix'] = conf.return_values(['client-ipv6-pool', 'delegate-prefix'])
+
+    return ipoe
+
+
+def verify(ipoe):
+    if not ipoe:
+        return None
+
+    if not ipoe['interfaces']:
+        raise ConfigError('No IPoE interface configured')
+
+    for interface in ipoe['interfaces']:
+        if not interface['range']:
+            raise ConfigError(f'No IPoE client subnet defined on interface "{{ interface }}"')
+
+    if len(ipoe['dnsv4']) > 2:
+        raise ConfigError('Not more then two IPv4 DNS name-servers can be configured')
+
+    if len(ipoe['dnsv6']) > 3:
+        raise ConfigError('Not more then three IPv6 DNS name-servers can be configured')
+
+    if ipoe['auth_mode'] == 'radius':
+        if len(ipoe['radius_server']) == 0:
+            raise ConfigError('RADIUS authentication requires at least one server')
+
+        for radius in ipoe['radius_server']:
+            if not radius['key']:
+                server = radius['server']
+                raise ConfigError(f'Missing RADIUS secret key for server "{{ server }}"')
+
+    if ipoe['client_ipv6_delegate_prefix'] and not ipoe['client_ipv6_pool']:
+        raise ConfigError('IPoE IPv6 deletate-prefix requires IPv6 prefix to be configured!')
+
+    return None
+
+
+def generate(ipoe):
+    if not ipoe:
+        return None
+
+    dirname = os.path.dirname(ipoe_conf)
+    if not os.path.exists(dirname):
+        os.mkdir(dirname)
+
+    render(ipoe_conf, 'ipoe-server/ipoe.config.tmpl', ipoe, trim_blocks=True)
+
+    if ipoe['auth_mode'] == 'local':
+        render(ipoe_chap_secrets, 'ipoe-server/chap-secrets.tmpl', ipoe)
+        os.chmod(ipoe_chap_secrets, S_IRUSR | S_IWUSR | S_IRGRP)
+
+    else:
+        if os.path.exists(ipoe_chap_secrets):
+             os.unlink(ipoe_chap_secrets)
+
+    return None
+
+
+def apply(ipoe):
+    if ipoe == None:
+        call('systemctl stop accel-ppp@ipoe.service')
+        for file in [ipoe_conf, ipoe_chap_secrets]:
+            if os.path.exists(file):
+                os.unlink(file)
+
+        return None
+
+    call('systemctl restart accel-ppp@ipoe.service')
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)
diff --git a/src/conf_mode/service_pppoe-server.py b/src/conf_mode/service_pppoe-server.py
index 13d0b1920..b791f1716 100755
--- a/src/conf_mode/service_pppoe-server.py
+++ b/src/conf_mode/service_pppoe-server.py
@@ -78,6 +78,7 @@ default_config_data = {
     'radius_dynamic_author': '',
     'sesscrtl': 'replace',
     'snmp': False,
+    'thread_cnt': '1'
 }
 
 def get_config():
diff --git a/src/conf_mode/service-router-advert.py b/src/conf_mode/service_router-advert.py
index 620f3eacf..620f3eacf 100755
--- a/src/conf_mode/service-router-advert.py
+++ b/src/conf_mode/service_router-advert.py
diff --git a/src/migration-scripts/ipoe-server/0-to-1 b/src/migration-scripts/ipoe-server/0-to-1
new file mode 100755
index 000000000..c04a7fb19
--- /dev/null
+++ b/src/migration-scripts/ipoe-server/0-to-1
@@ -0,0 +1,89 @@
+#!/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/>.
+
+# - remove primary/secondary identifier from nameserver
+# - Unifi RADIUS configuration by placing it all under "authentication radius" node
+
+import os
+import sys
+
+from sys import argv, exit
+from vyos.configtree import ConfigTree
+
+if (len(argv) < 1):
+    print("Must specify file name!")
+    exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+config = ConfigTree(config_file)
+base = ['service', 'ipoe-server']
+if not config.exists(base):
+    # Nothing to do
+    exit(0)
+else:
+
+    # Migrate IPv4 DNS servers
+    dns_base = base + ['dns-servers']
+    if config.exists(dns_base):
+        for server in ['server-1', 'server-2']:
+          if config.exists(dns_base + [server]):
+            dns = config.return_value(dns_base + [server])
+            config.set(base + ['name-server'], value=dns, replace=False)
+
+        config.delete(dns_base)
+
+    # Migrate IPv6 DNS servers
+    dns_base = base + ['dnsv6-servers']
+    if config.exists(dns_base):
+        for server in ['server-1', 'server-2', 'server-3']:
+          if config.exists(dns_base + [server]):
+            dns = config.return_value(dns_base + [server])
+            config.set(base + ['name-server'], value=dns, replace=False)
+
+        config.delete(dns_base)
+
+    # Migrate radius-settings node to RADIUS and use this as base for the
+    # later migration of the RADIUS servers - this will save a lot of code
+    radius_settings = base + ['authentication', 'radius-settings']
+    if config.exists(radius_settings):
+        config.rename(radius_settings, 'radius')
+
+    # Migrate RADIUS server
+    radius_server = base + ['authentication', 'radius-server']
+    if config.exists(radius_server):
+        new_base = base + ['authentication', 'radius', 'server']
+        config.set(new_base)
+        config.set_tag(new_base)
+        for server in config.list_nodes(radius_server):
+            old_base = radius_server + [server]
+            config.copy(old_base, new_base + [server])
+
+            # remove old req-limit node
+            if config.exists(new_base + [server, 'req-limit']):
+                config.delete(new_base + [server, 'req-limit'])
+
+        config.delete(radius_server)
+
+    try:
+        with open(file_name, 'w') as f:
+            f.write(config.to_string())
+    except OSError as e:
+        print("Failed to save the modified config: {}".format(e))
+        exit(1)
diff --git a/src/migration-scripts/pppoe-server/2-to-3 b/src/migration-scripts/pppoe-server/2-to-3
index 3f5415a94..d5d88d373 100755
--- a/src/migration-scripts/pppoe-server/2-to-3
+++ b/src/migration-scripts/pppoe-server/2-to-3
@@ -68,12 +68,27 @@ else:
 
         config.delete(wins_base)
 
-    # Remove RADIUS server req-limit node
-    radius_base = base + ['authentication', 'radius']
-    if config.exists(radius_base):
-        for server in config.list_nodes(radius_base + ['server']):
-            if config.exists(radius_base + ['server', server, 'req-limit']):
-                config.delete(radius_base + ['server', server, 'req-limit'])
+    # Migrate radius-settings node to RADIUS and use this as base for the
+    # later migration of the RADIUS servers - this will save a lot of code
+    radius_settings = base + ['authentication', 'radius-settings']
+    if config.exists(radius_settings):
+        config.rename(radius_settings, 'radius')
+
+    # Migrate RADIUS server
+    radius_server = base + ['authentication', 'radius-server']
+    if config.exists(radius_server):
+        new_base = base + ['authentication', 'radius', 'server']
+        config.set(new_base)
+        config.set_tag(new_base)
+        for server in config.list_nodes(radius_server):
+            old_base = radius_server + [server]
+            config.copy(old_base, new_base + [server])
+
+            # remove old req-limit node
+            if config.exists(new_base + [server, 'req-limit']):
+                config.delete(new_base + [server, 'req-limit'])
+
+        config.delete(radius_server)
 
     # Migrate IPv6 prefixes
     ipv6_base = base + ['client-ipv6-pool']