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-rwxr-xr-xsrc/op_mode/ikev2_profile_generator.py171
-rwxr-xr-xsrc/op_mode/show_dhcp.py7
-rwxr-xr-xsrc/op_mode/show_dhcpv6.py6
3 files changed, 167 insertions, 17 deletions
diff --git a/src/op_mode/ikev2_profile_generator.py b/src/op_mode/ikev2_profile_generator.py
index 4ff37341c..d45525431 100755
--- a/src/op_mode/ikev2_profile_generator.py
+++ b/src/op_mode/ikev2_profile_generator.py
@@ -19,17 +19,99 @@ import argparse
from jinja2 import Template
from sys import exit
from socket import getfqdn
+from cryptography.x509.oid import NameOID
from vyos.config import Config
-from vyos.template import render_to_string
-from cryptography.x509.oid import NameOID
from vyos.pki import load_certificate
+from vyos.template import render_to_string
+from vyos.util import ask_input
+
+# Apple profiles only support one IKE/ESP encryption cipher and hash, whereas
+# VyOS comes with a multitude of different proposals for a connection.
+#
+# We take all available proposals from the VyOS CLI and ask the user which one
+# he would like to get enabled in his profile - thus there is limited possibility
+# to select a proposal that is not supported on the connection profile.
+#
+# IOS supports IKE-SA encryption algorithms:
+# - DES
+# - 3DES
+# - AES-128
+# - AES-256
+# - AES-128-GCM
+# - AES-256-GCM
+# - ChaCha20Poly1305
+#
+vyos2apple_cipher = {
+ '3des' : '3DES',
+ 'aes128' : 'AES-128',
+ 'aes256' : 'AES-256',
+ 'aes128gcm128' : 'AES-128-GCM',
+ 'aes256gcm128' : 'AES-256-GCM',
+ 'chacha20poly1305' : 'ChaCha20Poly1305',
+}
+
+# Windows supports IKE-SA encryption algorithms:
+# - DES3
+# - AES128
+# - AES192
+# - AES256
+# - GCMAES128
+# - GCMAES192
+# - GCMAES256
+#
+vyos2windows_cipher = {
+ '3des' : 'DES3',
+ 'aes128' : 'AES128',
+ 'aes192' : 'AES192',
+ 'aes256' : 'AES256',
+ 'aes128gcm128' : 'GCMAES128',
+ 'aes192gcm128' : 'GCMAES192',
+ 'aes256gcm128' : 'GCMAES256',
+}
+
+# IOS supports IKE-SA integrity algorithms:
+# - SHA1-96
+# - SHA1-160
+# - SHA2-256
+# - SHA2-384
+# - SHA2-512
+#
+vyos2apple_integrity = {
+ 'sha1' : 'SHA1-96',
+ 'sha1_160' : 'SHA1-160',
+ 'sha256' : 'SHA2-256',
+ 'sha384' : 'SHA2-384',
+ 'sha512' : 'SHA2-512',
+}
+
+# Windows supports IKE-SA integrity algorithms:
+# - SHA1-96
+# - SHA1-160
+# - SHA2-256
+# - SHA2-384
+# - SHA2-512
+#
+vyos2windows_integrity = {
+ 'sha1' : 'SHA196',
+ 'sha256' : 'SHA256',
+ 'aes128gmac' : 'GCMAES128',
+ 'aes192gmac' : 'GCMAES192',
+ 'aes256gmac' : 'GCMAES256',
+}
+
+# IOS 14.2 and later do no support dh-group 1,2 and 5. Supported DH groups would
+# be: 14, 15, 16, 17, 18, 19, 20, 21, 31
+ios_supported_dh_groups = ['14', '15', '16', '17', '18', '19', '20', '21', '31']
+# Windows 10 only allows a limited set of DH groups
+windows_supported_dh_groups = ['1', '2', '14', '24']
parser = argparse.ArgumentParser()
-parser.add_argument("--connection", action="store", help="IPsec IKEv2 remote-access connection name from CLI", required=True)
-parser.add_argument("--remote", action="store", help="VPN connection remote-address where the client will connect to", required=True)
-parser.add_argument("--profile", action="store", help="IKEv2 profile name used in the profile list on the device")
-parser.add_argument("--name", action="store", help="VPN connection name as seen in the VPN application later")
+parser.add_argument('--os', const='all', nargs='?', choices=['ios', 'windows'], help='Operating system used for config generation', required=True)
+parser.add_argument("--connection", action="store", help='IPsec IKEv2 remote-access connection name from CLI', required=True)
+parser.add_argument("--remote", action="store", help='VPN connection remote-address where the client will connect to', required=True)
+parser.add_argument("--profile", action="store", help='IKEv2 profile name used in the profile list on the device')
+parser.add_argument("--name", action="store", help='VPN connection name as seen in the VPN application later')
args = parser.parse_args()
ipsec_base = ['vpn', 'ipsec']
@@ -43,7 +125,7 @@ profile_name = 'VyOS IKEv2 Profile'
if args.profile:
profile_name = args.profile
-vpn_name = 'VyOS IKEv2 Profile'
+vpn_name = 'VyOS IKEv2 VPN'
if args.name:
vpn_name = args.name
@@ -73,7 +155,76 @@ data['ca_cn'] = ca_cert.subject.get_attributes_for_oid(NameOID.COMMON_NAME)[0].v
data['cert_cn'] = cert.subject.get_attributes_for_oid(NameOID.COMMON_NAME)[0].value
data['ca_cert'] = conf.return_value(pki_base + ['ca', ca_name, 'certificate'])
-data['esp_proposal'] = conf.get_config_dict(ipsec_base + ['esp-group', data['esp_group'], 'proposal'], key_mangling=('-', '_'), get_first_key=True)
-data['ike_proposal'] = conf.get_config_dict(ipsec_base + ['ike-group', data['ike_group'], 'proposal'], key_mangling=('-', '_'), get_first_key=True)
+esp_proposals = conf.get_config_dict(ipsec_base + ['esp-group', data['esp_group'], 'proposal'],
+ key_mangling=('-', '_'), get_first_key=True)
+ike_proposal = conf.get_config_dict(ipsec_base + ['ike-group', data['ike_group'], 'proposal'],
+ key_mangling=('-', '_'), get_first_key=True)
+
+
+# This script works only for Apple iOS/iPadOS and Windows. Both operating systems
+# have different limitations thus we load the limitations based on the operating
+# system used.
+
+vyos2client_cipher = vyos2apple_cipher if args.os == 'ios' else vyos2windows_cipher;
+vyos2client_integrity = vyos2apple_integrity if args.os == 'ios' else vyos2windows_integrity;
+supported_dh_groups = ios_supported_dh_groups if args.os == 'ios' else windows_supported_dh_groups;
+
+# Create a dictionary containing client conform IKE settings
+ike = {}
+count = 1
+for _, proposal in ike_proposal.items():
+ if {'dh_group', 'encryption', 'hash'} <= set(proposal):
+ if (proposal['encryption'] in set(vyos2client_cipher) and
+ proposal['hash'] in set(vyos2client_integrity) and
+ proposal['dh_group'] in set(supported_dh_groups)):
+
+ # We 're-code' from the VyOS IPSec proposals to the Apple naming scheme
+ proposal['encryption'] = vyos2client_cipher[ proposal['encryption'] ]
+ proposal['hash'] = vyos2client_integrity[ proposal['hash'] ]
+
+ ike.update( { str(count) : proposal } )
+ count += 1
+
+# Create a dictionary containing Apple conform ESP settings
+esp = {}
+count = 1
+for _, proposal in esp_proposals.items():
+ if {'encryption', 'hash'} <= set(proposal):
+ if proposal['encryption'] in set(vyos2client_cipher) and proposal['hash'] in set(vyos2client_integrity):
+ # We 're-code' from the VyOS IPSec proposals to the Apple naming scheme
+ proposal['encryption'] = vyos2client_cipher[ proposal['encryption'] ]
+ proposal['hash'] = vyos2client_integrity[ proposal['hash'] ]
+
+ esp.update( { str(count) : proposal } )
+ count += 1
+try:
+ if len(ike) > 1:
+ # Propare the input questions for the user
+ tmp = '\n'
+ for number, options in ike.items():
+ tmp += f'({number}) Encryption {options["encryption"]}, Integrity {options["hash"]}, DH group {options["dh_group"]}\n'
+ tmp += '\nSelect one of the above IKE groups: '
+ data['ike_encryption'] = ike[ ask_input(tmp, valid_responses=list(ike)) ]
+ else:
+ data['ike_encryption'] = ike['1']
+
+ if len(esp) > 1:
+ tmp = '\n'
+ for number, options in esp.items():
+ tmp += f'({number}) Encryption {options["encryption"]}, Integrity {options["hash"]}\n'
+ tmp += '\nSelect one of the above ESP groups: '
+ data['esp_encryption'] = esp[ ask_input(tmp, valid_responses=list(esp)) ]
+ else:
+ data['esp_encryption'] = esp['1']
+
+except KeyboardInterrupt:
+ exit("Interrupted")
-print(render_to_string('ipsec/ios_profile.tmpl', data))
+print('\n\n==== <snip> ====')
+if args.os == 'ios':
+ print(render_to_string('ipsec/ios_profile.tmpl', data))
+ print('==== </snip> ====\n')
+ print('Save the XML from above to a new file named "vyos.mobileconfig" and E-Mail it to your phone.')
+elif args.os == 'windows':
+ print(render_to_string('ipsec/windows_profile.tmpl', data))
+ print('==== </snip> ====\n')
diff --git a/src/op_mode/show_dhcp.py b/src/op_mode/show_dhcp.py
index ff1e3cc56..4df275e04 100755
--- a/src/op_mode/show_dhcp.py
+++ b/src/op_mode/show_dhcp.py
@@ -1,6 +1,6 @@
#!/usr/bin/env python3
#
-# Copyright (C) 2018-2020 VyOS maintainers and contributors
+# Copyright (C) 2018-2021 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
@@ -27,8 +27,7 @@ from datetime import datetime
from isc_dhcp_leases import Lease, IscDhcpLeases
from vyos.config import Config
-from vyos.util import call
-
+from vyos.util import is_systemd_service_running
lease_file = "/config/dhcpd.leases"
pool_key = "shared-networkname"
@@ -217,7 +216,7 @@ if __name__ == '__main__':
exit(0)
# if dhcp server is down, inactive leases may still be shown as active, so warn the user.
- if call('systemctl -q is-active isc-dhcp-server.service') != 0:
+ if not is_systemd_service_running('isc-dhcp-server.service'):
print("WARNING: DHCP server is configured but not started. Data may be stale.")
if args.leases:
diff --git a/src/op_mode/show_dhcpv6.py b/src/op_mode/show_dhcpv6.py
index f70f04298..1f987ff7b 100755
--- a/src/op_mode/show_dhcpv6.py
+++ b/src/op_mode/show_dhcpv6.py
@@ -1,6 +1,6 @@
#!/usr/bin/env python3
#
-# Copyright (C) 2018-2020 VyOS maintainers and contributors
+# Copyright (C) 2018-2021 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
@@ -27,7 +27,7 @@ from datetime import datetime
from isc_dhcp_leases import Lease, IscDhcpLeases
from vyos.config import Config
-from vyos.util import call
+from vyos.util import is_systemd_service_running
lease_file = "/config/dhcpdv6.leases"
pool_key = "shared-networkname"
@@ -202,7 +202,7 @@ if __name__ == '__main__':
exit(0)
# if dhcp server is down, inactive leases may still be shown as active, so warn the user.
- if call('systemctl -q is-active isc-dhcp-server6.service') != 0:
+ if not is_systemd_service_running('isc-dhcp-server6.service'):
print("WARNING: DHCPv6 server is configured but not started. Data may be stale.")
if args.leases:
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 21:11:44 +0000