T3420: Remove service upnp

Remove `service upnp` as it never worked as expected, nft rules do
not integrated and custom patches do not seem like a suitable
solution for now.

Security:
UPnP has been historically associated with security risks due to its automatic
and potentially unauthenticated nature.
UPnP devices might be vulnerable to unauthorized access or exploitation.

1 files changed, 0 insertions, 157 deletions

diff --git a/src/conf_mode/service_upnp.py b/src/conf_mode/service_upnp.py
deleted file mode 100755
index 0df8dc09e..000000000
--- a/src/conf_mode/service_upnp.py
+++ /dev/null
@@ -1,157 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2021-2022 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
-import uuid
-import netifaces
-from ipaddress import IPv4Network
-from ipaddress import IPv6Network
-
-from vyos.config import Config
-from vyos.utils.process import call
-from vyos.template import render
-from vyos.template import is_ipv4
-from vyos.template import is_ipv6
-from vyos import ConfigError
-from vyos import airbag
-airbag.enable()
-
-config_file = r'/run/upnp/miniupnp.conf'
-
-def get_config(config=None):
-    if config:
-        conf = config
-    else:
-        conf = Config()
-
-    base = ['service', 'upnp']
-    upnpd = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
-
-    if not upnpd:
-        return None
-
-    upnpd = conf.merge_defaults(upnpd, recursive=True)
-
-    uuidgen = uuid.uuid1()
-    upnpd.update({'uuid': uuidgen})
-
-    return upnpd
-
-def get_all_interface_addr(prefix, filter_dev, filter_family):
-    list_addr = []
-    for interface in netifaces.interfaces():
-        if filter_dev and interface in filter_dev:
-            continue
-        addrs = netifaces.ifaddresses(interface)
-        if netifaces.AF_INET in addrs.keys():
-            if netifaces.AF_INET in filter_family:
-                for addr in addrs[netifaces.AF_INET]:
-                    if prefix:
-                        # we need to manually assemble a list of IPv4 address/prefix
-                        prefix = '/' + \
-                            str(IPv4Network('0.0.0.0/' + addr['netmask']).prefixlen)
-                        list_addr.append(addr['addr'] + prefix)
-                    else:
-                        list_addr.append(addr['addr'])
-        if netifaces.AF_INET6 in addrs.keys():
-            if netifaces.AF_INET6 in filter_family:
-                for addr in addrs[netifaces.AF_INET6]:
-                    if prefix:
-                        # we need to manually assemble a list of IPv4 address/prefix
-                        bits = bin(int(addr['netmask'].replace(':', '').split('/')[0], 16)).count('1')
-                        prefix = '/' + str(bits)
-                        list_addr.append(addr['addr'] + prefix)
-                    else:
-                        list_addr.append(addr['addr'])
-
-    return list_addr
-
-def verify(upnpd):
-    if not upnpd:
-        return None
-
-    if 'wan_interface' not in upnpd:
-        raise ConfigError('To enable UPNP, you must have the "wan-interface" option!')
-
-    if 'rule' in upnpd:
-        for rule, rule_config in upnpd['rule'].items():
-            for option in ['external_port_range', 'internal_port_range', 'ip', 'action']:
-                if option not in rule_config:
-                    tmp = option.replace('_', '-')
-                    raise ConfigError(f'Every UPNP rule requires "{tmp}" to be set!')
-
-    if 'stun' in upnpd:
-        for option in ['host', 'port']:
-            if option not in upnpd['stun']:
-                raise ConfigError(f'A UPNP stun support must have an "{option}" option!')
-
-    # Check the validity of the IP address
-    listen_dev = []
-    system_addrs_cidr = get_all_interface_addr(True, [], [netifaces.AF_INET, netifaces.AF_INET6])
-    system_addrs = get_all_interface_addr(False, [], [netifaces.AF_INET, netifaces.AF_INET6])
-    if 'listen' not in upnpd:
-        raise ConfigError(f'Listen address or interface is required!')
-    for listen_if_or_addr in upnpd['listen']:
-        if listen_if_or_addr not in netifaces.interfaces():
-            listen_dev.append(listen_if_or_addr)
-        if (listen_if_or_addr not in system_addrs) and (listen_if_or_addr not in system_addrs_cidr) and \
-                (listen_if_or_addr not in netifaces.interfaces()):
-            if is_ipv4(listen_if_or_addr) and IPv4Network(listen_if_or_addr).is_multicast:
-                raise ConfigError(f'The address "{listen_if_or_addr}" is an address that is not allowed'
-                                  f'to listen on. It is not an interface address nor a multicast address!')
-            if is_ipv6(listen_if_or_addr) and IPv6Network(listen_if_or_addr).is_multicast:
-                raise ConfigError(f'The address "{listen_if_or_addr}" is an address that is not allowed'
-                                  f'to listen on. It is not an interface address nor a multicast address!')
-
-    system_listening_dev_addrs_cidr = get_all_interface_addr(True, listen_dev, [netifaces.AF_INET6])
-    system_listening_dev_addrs = get_all_interface_addr(False, listen_dev, [netifaces.AF_INET6])
-    for listen_if_or_addr in upnpd['listen']:
-        if listen_if_or_addr not in netifaces.interfaces() and \
-                (listen_if_or_addr not in system_listening_dev_addrs_cidr) and \
-                (listen_if_or_addr not in system_listening_dev_addrs) and \
-                is_ipv6(listen_if_or_addr) and \
-                (not IPv6Network(listen_if_or_addr).is_multicast):
-            raise ConfigError(f'{listen_if_or_addr} must listen on the interface of the network card')
-
-def generate(upnpd):
-    if not upnpd:
-        return None
-
-    if os.path.isfile(config_file):
-        os.unlink(config_file)
-
-    render(config_file, 'firewall/upnpd.conf.j2', upnpd)
-
-def apply(upnpd):
-    systemd_service_name = 'miniupnpd.service'
-    if not upnpd:
-        # Stop the UPNP service
-        call(f'systemctl stop {systemd_service_name}')
-    else:
-        # Start the UPNP service
-        call(f'systemctl restart {systemd_service_name}')
-
-if __name__ == '__main__':
-    try:
-        c = get_config()
-        verify(c)
-        generate(c)
-        apply(c)
-    except ConfigError as e:
-        print(e)
-        exit(1)