diff options
Diffstat (limited to 'src/conf_mode')
| -rwxr-xr-x | src/conf_mode/accel_sstp.py | 469 | ||||
| -rwxr-xr-x | src/conf_mode/ntp.py | 10 | ||||
| -rwxr-xr-x | src/conf_mode/vpn_sstp.py | 545 |
3 files changed, 549 insertions, 475 deletions
diff --git a/src/conf_mode/accel_sstp.py b/src/conf_mode/accel_sstp.py deleted file mode 100755 index 1317a32db..000000000 --- a/src/conf_mode/accel_sstp.py +++ /dev/null @@ -1,469 +0,0 @@ -#!/usr/bin/env python3 -# -# Copyright (C) 2018 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 sys -import os -import re -import subprocess -import jinja2 -import socket -import time -import syslog as sl - -from vyos.config import Config -from vyos import ConfigError - -pidfile = r'/var/run/accel_sstp.pid' -sstp_cnf_dir = r'/etc/accel-ppp/sstp' -chap_secrets = sstp_cnf_dir + '/chap-secrets' -sstp_conf = sstp_cnf_dir + '/sstp.config' -ssl_cert_dir = r'/config/user-data/sstp' - -### config path creation -if not os.path.exists(sstp_cnf_dir): - os.makedirs(sstp_cnf_dir) - sl.syslog(sl.LOG_NOTICE, sstp_cnf_dir + " created") - -if not os.path.exists(ssl_cert_dir): - os.makedirs(ssl_cert_dir) - sl.syslog(sl.LOG_NOTICE, ssl_cert_dir + " created") - -sstp_config = ''' -### generated by accel_sstp.py ### -[modules] -log_syslog -sstp -ippool -shaper -{% if authentication['mode'] == 'local' %} -chap-secrets -{% endif -%} -{% for proto in authentication['auth_proto'] %} -{{proto}} -{% endfor %} -{% if authentication['mode'] == 'radius' %} -radius -{% endif %} - -[core] -thread-count={{thread_cnt}} - -[common] -single-session=replace - -[log] -syslog=accel-sstp,daemon -copy=1 -level=5 - -[client-ip-range] -disable - -[sstp] -verbose=1 -accept=ssl -{% if certs %} -ssl-ca-file=/config/user-data/sstp/{{certs['ca']}} -ssl-pemfile=/config/user-data/sstp/{{certs['server-cert']}} -ssl-keyfile=/config/user-data/sstp/{{certs['server-key']}} -{% endif %} - -{%if ip_pool %} -[ip-pool] -gw-ip-address={{gw}} -{% for sn in ip_pool %} -{{sn}} -{% endfor %} -{% endif %} - -{% if dnsv4 %} -[dns] -{% if dnsv4['primary'] %} -dns1={{dnsv4['primary']}} -{% endif -%} -{% if dnsv4['secondary'] %} -dns2={{dnsv4['secondary']}} -{% endif -%} -{% endif %} - -{% if authentication['mode'] == 'local' %} -[chap-secrets] -chap-secrets=/etc/accel-ppp/sstp/chap-secrets -{% endif %} - -{%- if authentication['mode'] == 'radius' %} -[radius] -verbose=1 -{% for rsrv in authentication['radius-srv']: %} -server={{rsrv}},{{authentication['radius-srv'][rsrv]['secret']}},\ -req-limit={{authentication['radius-srv'][rsrv]['req-limit']}},\ -fail-time={{authentication['radius-srv'][rsrv]['fail-time']}} -{% endfor -%} -{% if authentication['radiusopt']['acct-timeout'] %} -acct-timeout={{authentication['radiusopt']['acct-timeout']}} -{% endif -%} -{% if authentication['radiusopt']['timeout'] %} -timeout={{authentication['radiusopt']['timeout']}} -{% endif -%} -{% if authentication['radiusopt']['max-try'] %} -max-try={{authentication['radiusopt']['max-try']}} -{% endif -%} -{% if authentication['radiusopt']['nas-id'] %} -nas-identifier={{authentication['radiusopt']['nas-id']}} -{% endif -%} -{% if authentication['radiusopt']['nas-ip'] %} -nas-ip-address={{authentication['radiusopt']['nas-ip']}} -{% endif -%} -{% if authentication['radiusopt']['dae-srv'] %} -dae-server={{authentication['radiusopt']['dae-srv']['ip-addr']}}:\ -{{authentication['radiusopt']['dae-srv']['port']}},\ -{{authentication['radiusopt']['dae-srv']['secret']}} -{% endif -%} -{% endif %} - -[ppp] -verbose=1 -check-ip=1 -{% if mtu %} -mtu={{mtu}} -{% endif -%} -{% if ppp['mppe'] %} -mppe={{ppp['mppe']}} -{% endif -%} -{% if ppp['lcp-echo-interval'] %} -lcp-echo-interval={{ppp['lcp-echo-interval']}} -{% endif -%} -{% if ppp['lcp-echo-failure'] %} -lcp-echo-failure={{ppp['lcp-echo-failure']}} -{% endif -%} -{% if ppp['lcp-echo-timeout'] %} -lcp-echo-timeout={{ppp['lcp-echo-timeout']}} -{% endif %} - -{% if authentication['radiusopt']['shaper'] %} -[shaper] -verbose=1 -attr={{authentication['radiusopt']['shaper']['attr']}} -{% if authentication['radiusopt']['shaper']['vendor'] %} -vendor={{authentication['radiusopt']['shaper']['vendor']}} -{% endif -%} -{% endif %} - -[cli] -tcp=127.0.0.1:2005 -''' - -### sstp chap secrets -chap_secrets_conf = ''' -# username server password acceptable local IP addresses shaper -{% for user in authentication['local-users'] %} -{% if authentication['local-users'][user]['state'] == 'enabled' %} -{% if (authentication['local-users'][user]['upload']) and (authentication['local-users'][user]['download']) %} -{{user}}\t*\t{{authentication['local-users'][user]['passwd']}}\t{{authentication['local-users'][user]['ip']}}\t\ -{{authentication['local-users'][user]['download']}}/{{authentication['local-users'][user]['upload']}} -{% else %} -{{user}}\t*\t{{authentication['local-users'][user]['passwd']}}\t{{authentication['local-users'][user]['ip']}} -{% endif %} -{% endif %} -{% endfor %} -''' -### -# inline helper functions -### -# depending on hw and threads, daemon needs a little to start -# if it takes longer than 100 * 0.5 secs, exception is being raised -# not sure if that's the best way to check it, but it worked so far quite well -### -def chk_con(): - cnt = 0 - s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) - while True: - try: - s.connect(("127.0.0.1", 2005)) - s.close() - break - except ConnectionRefusedError: - time.sleep(0.5) - cnt +=1 - if cnt == 100: - raise("failed to start sstp server") - break - -### chap_secrets file if auth mode local -def write_chap_secrets(c): - tmpl = jinja2.Template(chap_secrets_conf, trim_blocks=True) - chap_secrets_txt = tmpl.render(c) - old_umask = os.umask(0o077) - open(chap_secrets,'w').write(chap_secrets_txt) - os.umask(old_umask) - sl.syslog(sl.LOG_NOTICE, chap_secrets + ' written') - -def accel_cmd(cmd=''): - if not cmd: - return None - try: - ret = subprocess.check_output(['/usr/bin/accel-cmd','-p','2005',cmd]).decode().strip() - return ret - except: - return 1 - -#### check ig local-ip is in client pool subnet - - -### -# inline helper functions end -### - -def get_config(): - c = Config() - if not c.exists('service sstp-server'): - return None - - c.set_level('service sstp-server') - - config_data = { - 'authentication' : { - 'local-users' : { - }, - 'mode' : 'local', - 'auth_proto' : [], - 'radius-srv' : {}, - 'radiusopt' : {}, - 'dae-srv' : {} - }, - 'certs' : { - 'ca' : None, - 'server-key' : None, - 'server-cert' : None - }, - 'ip_pool' : [], - 'gw' : None, - 'dnsv4' : {}, - 'mtu' : None, - 'ppp' : {}, - } - - ### local auth - if c.exists('authentication mode local'): - if c.exists('authentication local-users'): - for usr in c.list_nodes('authentication local-users username'): - config_data['authentication']['local-users'].update( - { - usr : { - 'passwd' : None, - 'state' : 'enabled', - 'ip' : '*', - 'upload' : None, - 'download' : None - } - } - ) - if c.exists('authentication local-users username ' + usr + ' password'): - config_data['authentication']['local-users'][usr]['passwd'] = c.return_value('authentication local-users username ' + usr + ' password') - if c.exists('authentication local-users username ' + usr + ' disable'): - config_data['authentication']['local-users'][usr]['state'] = 'disable' - if c.exists('authentication local-users username ' + usr + ' static-ip'): - config_data['authentication']['local-users'][usr]['ip'] = c.return_value('authentication local-users username ' + usr + ' static-ip') - if c.exists('authentication local-users username ' + usr + ' rate-limit download'): - config_data['authentication']['local-users'][usr]['download'] = c.return_value('authentication local-users username ' + usr + ' rate-limit download') - if c.exists('authentication local-users username ' + usr + ' rate-limit upload'): - config_data['authentication']['local-users'][usr]['upload'] = c.return_value('authentication local-users username ' + usr + ' rate-limit upload') - - if c.exists('authentication protocols'): - auth_mods = {'pap' : 'pap','chap' : 'auth_chap_md5', 'mschap' : 'auth_mschap_v1', 'mschap-v2' : 'auth_mschap_v2'} - for proto in c.return_values('authentication protocols'): - config_data['authentication']['auth_proto'].append(auth_mods[proto]) - else: - config_data['authentication']['auth_proto'] = ['auth_mschap_v2'] - - #### RADIUS auth and settings - if c.exists('authentication mode radius'): - config_data['authentication']['mode'] = c.return_value('authentication mode') - if c.exists('authentication radius-server'): - for rsrv in c.list_nodes('authentication radius-server'): - config_data['authentication']['radius-srv'][rsrv] = {} - if c.exists('authentication radius-server ' + rsrv + ' secret'): - config_data['authentication']['radius-srv'][rsrv]['secret'] = c.return_value('authentication radius-server ' + rsrv + ' secret') - else: - config_data['authentication']['radius-srv'][rsrv]['secret'] = None - if c.exists('authentication radius-server ' + rsrv + ' fail-time'): - config_data['authentication']['radius-srv'][rsrv]['fail-time'] = c.return_value('authentication radius-server ' + rsrv + ' fail-time') - else: - config_data['authentication']['radius-srv'][rsrv]['fail-time'] = 0 - if c.exists('authentication radius-server ' + rsrv + ' req-limit'): - config_data['authentication']['radius-srv'][rsrv]['req-limit'] = c.return_value('authentication radius-server ' + rsrv + ' req-limit') - else: - config_data['authentication']['radius-srv'][rsrv]['req-limit'] = 0 - - #### advanced radius-setting - if c.exists('authentication radius-settings'): - if c.exists('authentication radius-settings acct-timeout'): - config_data['authentication']['radiusopt']['acct-timeout'] = c.return_value('authentication radius-settings acct-timeout') - if c.exists('authentication radius-settings max-try'): - config_data['authentication']['radiusopt']['max-try'] = c.return_value('authentication radius-settings max-try') - if c.exists('authentication radius-settings timeout'): - config_data['authentication']['radiusopt']['timeout'] = c.return_value('authentication radius-settings timeout') - if c.exists('authentication radius-settings nas-identifier'): - config_data['authentication']['radiusopt']['nas-id'] = c.return_value('authentication radius-settings nas-identifier') - if c.exists('authentication radius-settings nas-ip-address'): - config_data['authentication']['radiusopt']['nas-ip'] = c.return_value('authentication radius-settings nas-ip-address') - if c.exists('authentication radius-settings dae-server'): - config_data['authentication']['radiusopt'].update( - { - 'dae-srv' : { - 'ip-addr' : c.return_value('authentication radius-settings dae-server ip-address'), - 'port' : c.return_value('authentication radius-settings dae-server port'), - 'secret' : str(c.return_value('authentication radius-settings dae-server secret')) - } - } - ) - if c.exists('authentication radius-settings rate-limit enable'): - if not c.exists('authentication radius-settings rate-limit attribute'): - config_data['authentication']['radiusopt']['shaper'] = { 'attr' : 'Filter-Id' } - else: - config_data['authentication']['radiusopt']['shaper'] = { - 'attr' : c.return_value('authentication radius-settings rate-limit attribute') - } - if c.exists('authentication radius-settings rate-limit vendor'): - config_data['authentication']['radiusopt']['shaper']['vendor'] = c.return_value('authentication radius-settings rate-limit vendor') - - if c.exists('sstp-settings ssl-certs ca'): - config_data['certs']['ca'] = c.return_value('sstp-settings ssl-certs ca') - if c.exists('sstp-settings ssl-certs server-cert'): - config_data['certs']['server-cert'] = c.return_value('sstp-settings ssl-certs server-cert') - if c.exists('sstp-settings ssl-certs server-key'): - config_data['certs']['server-key'] = c.return_value('sstp-settings ssl-certs server-key') - - if c.exists('network-settings client-ip-settings subnet'): - config_data['ip_pool'] = c.return_values('network-settings client-ip-settings subnet') - if c.exists('network-settings client-ip-settings gateway-address'): - config_data['gw'] = c.return_value('network-settings client-ip-settings gateway-address') - if c.exists('network-settings dns-server primary-dns'): - config_data['dnsv4']['primary'] = c.return_value('network-settings dns-server primary-dns') - if c.exists('network-settings dns-server secondary-dns'): - config_data['dnsv4']['secondary'] = c.return_value('network-settings dns-server secondary-dns') - if c.exists('network-settings mtu'): - config_data['mtu'] = c.return_value('network-settings mtu') - - #### ppp - if c.exists('ppp-settings mppe'): - config_data['ppp']['mppe'] = c.return_value('ppp-settings mppe') - if c.exists('ppp-settings lcp-echo-failure'): - config_data['ppp']['lcp-echo-failure'] = c.return_value('ppp-settings lcp-echo-failure') - if c.exists('ppp-settings lcp-echo-interval'): - config_data['ppp']['lcp-echo-interval'] = c.return_value('ppp-settings lcp-echo-interval') - if c.exists('ppp-settings lcp-echo-timeout'): - config_data['ppp']['lcp-echo-timeout'] = c.return_value('ppp-settings lcp-echo-timeout') - - return config_data - -def verify(c): - if c == None: - return None - ### vertify auth settings - if c['authentication']['mode'] == 'local': - if not c['authentication']['local-users']: - raise ConfigError('sstp-server authentication local-users required') - - for usr in c['authentication']['local-users']: - if not c['authentication']['local-users'][usr]['passwd']: - raise ConfigError('user ' + usr + ' requires a password') - ### if up/download is set, check that both have a value - if c['authentication']['local-users'][usr]['upload']: - if not c['authentication']['local-users'][usr]['download']: - raise ConfigError('user ' + usr + ' requires download speed value') - if c['authentication']['local-users'][usr]['download']: - if not c['authentication']['local-users'][usr]['upload']: - raise ConfigError('user ' + usr + ' requires upload speed value') - - if not c['certs']['ca'] or not c['certs']['server-key'] or not c['certs']['server-cert']: - raise ConfigError('service sstp-server sstp-settings ssl-certs needs the ssl certificates set up') - else: - ssl_path = ssl_cert_dir + '/' - if not os.path.exists(ssl_path + c['certs']['ca']): - raise ConfigError('CA {0} doesn\'t exist'.format(ssl_path + c['certs']['ca'])) - if not os.path.exists(ssl_path + c['certs']['server-cert']): - raise ConfigError('SSL Cert {0} doesn\'t exist'.format(ssl_path + c['certs']['server-cert'])) - if not os.path.exists(ssl_path + c['certs']['server-cert']): - raise ConfigError('SSL Key {0} doesn\'t exist'.format(ssl_path + c['certs']['server-key'])) - - if c['authentication']['mode'] == 'radius': - if len(c['authentication']['radius-srv']) == 0: - raise ConfigError('service sstp-server authentication radius-server needs a value') - for rsrv in c['authentication']['radius-srv']: - if c['authentication']['radius-srv'][rsrv]['secret'] == None: - raise ConfigError('service sstp-server authentication radius-server {0} secret requires a value'.format(rsrv)) - - if c['authentication']['mode'] == 'local': - if not c['ip_pool']: - print ("WARNING: service sstp-server network-settings client-ip-settings subnet requires a value") - if not c['gw']: - print ("WARNING: service sstp-server network-settings client-ip-settings gateway-address requires a value") - -def generate(c): - if c == None: - return None - - ### accel-cmd reload doesn't work so any change results in a restart of the daemon - try: - if os.cpu_count() == 1: - c['thread_cnt'] = 1 - else: - c['thread_cnt'] = int(os.cpu_count()/2) - except KeyError: - if os.cpu_count() == 1: - c['thread_cnt'] = 1 - else: - c['thread_cnt'] = int(os.cpu_count()/2) - - tmpl = jinja2.Template(sstp_config, trim_blocks=True) - config_text = tmpl.render(c) - open(sstp_conf,'w').write(config_text) - - if c['authentication']['local-users']: - write_chap_secrets(c) - - return c - -def apply(c): - if c == None: - if os.path.exists(pidfile): - accel_cmd('shutdown hard') - if os.path.exists(pidfile): - os.remove(pidfile) - return None - - if not os.path.exists(pidfile): - ret = subprocess.call(['/usr/sbin/accel-pppd','-c',sstp_conf,'-p',pidfile,'-d']) - chk_con() - if ret !=0 and os.path.exists(pidfile): - os.remove(pidfile) - raise ConfigError('accel-pppd failed to start') - else: - accel_cmd('restart') - sl.syslog(sl.LOG_NOTICE, "reloading config via daemon restart") - -if __name__ == '__main__': - try: - c = get_config() - verify(c) - generate(c) - apply(c) - except ConfigError as e: - print(e) - sys.exit(1) diff --git a/src/conf_mode/ntp.py b/src/conf_mode/ntp.py index f706d502f..c3e8d51b3 100755 --- a/src/conf_mode/ntp.py +++ b/src/conf_mode/ntp.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2018 VyOS maintainers and contributors +# 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 @@ -13,15 +13,13 @@ # # 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 sys import os - import jinja2 import ipaddress -import copy + +from copy import deepcopy from vyos.config import Config from vyos import ConfigError @@ -78,7 +76,7 @@ default_config_data = { } def get_config(): - ntp = copy.deepcopy(default_config_data) + ntp = deepcopy(default_config_data) conf = Config() if not conf.exists('system ntp'): return None diff --git a/src/conf_mode/vpn_sstp.py b/src/conf_mode/vpn_sstp.py new file mode 100755 index 000000000..a2e7c9327 --- /dev/null +++ b/src/conf_mode/vpn_sstp.py @@ -0,0 +1,545 @@ +#!/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 jinja2 + +from time import sleep +from sys import exit +from subprocess import Popen, PIPE, check_output +from socket import socket, AF_INET, SOCK_STREAM +from copy import deepcopy +from stat import S_IRUSR, S_IWUSR, S_IRGRP +from psutil import pid_exists + +from vyos.config import Config +from vyos import ConfigError + +pidfile = r'/var/run/accel_sstp.pid' +sstp_cnf_dir = r'/etc/accel-ppp/sstp' +chap_secrets = sstp_cnf_dir + '/chap-secrets' +sstp_conf = sstp_cnf_dir + '/sstp.config' +ssl_cert_dir = r'/config/user-data/sstp' + +# config path creation +if not os.path.exists(sstp_cnf_dir): + os.makedirs(sstp_cnf_dir) + +if not os.path.exists(ssl_cert_dir): + os.makedirs(ssl_cert_dir) + +sstp_config = """### generated by vpn_sstp.py ### +[modules] +log_syslog +sstp +ippool +shaper +{% if auth_mode == 'local' %} +chap-secrets +{% elif auth_mode == 'radius' %} +radius +{% endif -%} + +{% for proto in auth_proto %} +{{proto}} +{% endfor %} + +[core] +thread-count={{thread_cnt}} + +[common] +single-session=replace + +[log] +syslog=accel-sstp,daemon +copy=1 +level=5 + +[client-ip-range] +disable + +[sstp] +verbose=1 +accept=ssl +ssl-ca-file=/config/user-data/sstp/{{ ssl_ca }} +ssl-pemfile=/config/user-data/sstp/{{ ssl_cert }} +ssl-keyfile=/config/user-data/sstp/{{ ssl_key }} + +{% if client_ip_pool %} +[ip-pool] +gw-ip-address={{ client_gateway }} +{% for subnet in client_ip_pool %} +{{ subnet }} +{% endfor %} +{% endif %} + +{% if dnsv4 %} +[dns] +{% for dns in dnsv4 -%} +dns{{ loop.index }}={{ dns }} +{% endfor -%} +{% endif %} + +{% if auth_mode == 'local' %} +[chap-secrets] +chap-secrets=/etc/accel-ppp/sstp/chap-secrets +{% elif auth_mode == 'radius' %} +[radius] +verbose=1 +{% for r in radius_server %} +server={{ r.server }},{{ r.key }},auth-port={{ r.port }},req-limit=0,fail-time={{ r.fail_time }} +{% endfor -%} + +acct-timeout={{ radius_acct_tmo }} +timeout={{ radius_timeout }} +max-try={{ radius_max_try }} + +{% if radius_nas_id %} +nas-identifier={{ radius_nas_id }} +{% endif -%} +{% if radius_nas_ip %} +nas-ip-address={{ radius_nas_ip }} +{% endif -%} +{% if radius_source_address %} +bind={{ radius_source_address }} +{% endif -%} + + +{% if radius_dynamic_author %} +dae-server={{ radius_dynamic_author.server }}:{{ radius_dynamic_author.port }},{{ radius_dynamic_author.key }} +{% endif -%} +{% endif %} + +[ppp] +verbose=1 +check-ip=1 +{% if mtu %} +mtu={{ mtu }} +{% endif -%} + +{% if ppp_mppe %} +mppe={{ ppp_mppe }} +{% endif -%} +{% if ppp_echo_interval %} +lcp-echo-interval={{ ppp_echo_interval }} +{% endif -%} +{% if ppp_echo_failure %} +lcp-echo-failure={{ ppp_echo_failure }} +{% endif -%} +{% if ppp_echo_timeout %} +lcp-echo-timeout={{ ppp_echo_timeout }} +{% endif %} + +{% if radius_shaper_attr %} +[shaper] +verbose=1 +attr={{ radius_shaper_attr }} +{% if radius_shaper_vendor %} +vendor={{ radius_shaper_vendor }} +{% endif -%} +{% endif %} + +[cli] +tcp=127.0.0.1:2005 + +""" + +# sstp chap secrets +chap_secrets_conf = """ +# username server password acceptable local IP addresses shaper +{% for user in local_users %} +{% if user.state == 'enabled' %} +{% if user.upload and user.download %} +{{ "%-12s" | format(user.name) }} * {{ "%-16s" | format(user.password) }} {{ "%-16s" | format(user.ip) }} {{ user.download }} / {{ user.upload }} +{% else %} +{{ "%-12s" | format(user.name) }} * {{ "%-16s" | format(user.password) }} {{ "%-16s" | format(user.ip) }} +{% endif %} +{% endif %} +{% endfor %} +""" + +def subprocess_cmd(command): + p = Popen(command, stdout=PIPE, shell=True) + p.communicate() + +def chk_con(): + cnt = 0 + s = socket(AF_INET, SOCK_STREAM) + while True: + try: + s.connect(("127.0.0.1", 2005)) + s.close() + break + except ConnectionRefusedError: + sleep(0.5) + cnt += 1 + if cnt == 100: + raise("failed to start sstp server") + break + +def accel_cmd(cmd): + if not cmd: + return None + + try: + ret = check_output(['/usr/bin/accel-cmd', '-p', '2005', cmd]) + return ret.decode().strip() + + except: + return 1 + +default_config_data = { + 'local_users' : [], + 'auth_mode' : 'local', + 'auth_proto' : [], + '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' : '', + 'ssl_ca' : '', + 'ssl_cert' : '', + 'ssl_key' : '', + 'client_ip_pool' : [], + 'dnsv4' : [], + 'mtu' : '', + 'ppp_mppe' : '', + 'ppp_echo_failure' : '', + 'ppp_echo_interval' : '', + 'ppp_echo_timeout' : '', + 'thread_cnt' : '' +} + +def get_config(): + sstp = deepcopy(default_config_data) + base_path = ['vpn', 'sstp'] + conf = Config() + if not conf.exists(base_path): + return None + + conf.set_level(base_path) + + cpu = int(os.cpu_count()/2) + if cpu < 1: + cpu = 1 + sstp['thread_cnt'] = cpu + + if conf.exists(['authentication', 'mode']): + sstp['auth_mode'] = conf.return_value(['authentication', 'mode']) + + # + # local auth + if conf.exists(['authentication', 'local-users']): + for username in conf.list_nodes(['authentication', 'local-users', 'username']): + user = { + 'name' : username, + 'password' : '', + 'state' : 'enabled', + 'ip' : '*', + 'upload' : None, + 'download' : None + } + + conf.set_level(base_path + ['authentication', 'local-users', 'username', username]) + + if conf.exists(['password']): + user['password'] = conf.return_value(['password']) + + if conf.exists(['disable']): + user['state'] = 'disable' + + if conf.exists(['static-ip']): + user['ip'] = conf.return_value(['static-ip']) + + if conf.exists(['rate-limit', 'download']): + user['download'] = conf.return_value(['rate-limit', 'download']) + + if conf.exists(['rate-limit', 'upload']): + user['upload'] = conf.return_value(['rate-limit', 'upload']) + + sstp['local_users'].append(user) + + # + # RADIUS auth and settings + conf.set_level(base_path + ['authentication', 'radius']) + if conf.exists(['server']): + for server in conf.list_nodes(['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']): + sstp['radius_server'].append(radius) + + # + # advanced radius-setting + conf.set_level(base_path + ['authentication', 'radius']) + + if conf.exists(['acct-timeout']): + sstp['radius_acct_tmo'] = conf.return_value(['acct-timeout']) + + if conf.exists(['max-try']): + sstp['radius_max_try'] = conf.return_value(['max-try']) + + if conf.exists(['timeout']): + sstp['radius_timeout'] = conf.return_value(['timeout']) + + if conf.exists(['nas-identifier']): + sstp['radius_nas_id'] = conf.return_value(['nas-identifier']) + + if conf.exists(['nas-ip-address']): + sstp['radius_nas_ip'] = conf.return_value(['nas-ip-address']) + + if conf.exists(['source-address']): + sstp['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', 'server']): + dae['server'] = conf.return_value(['dynamic-author', 'server']) + + if conf.exists(['dynamic-author', 'port']): + dae['port'] = conf.return_value(['dynamic-author', 'port']) + + if conf.exists(['dynamic-author', 'key']): + dae['key'] = conf.return_value(['dynamic-author', 'key']) + + sstp['radius_dynamic_author'] = dae + + if conf.exists(['rate-limit', 'enable']): + sstp['radius_shaper_attr'] = 'Filter-Id' + c_attr = ['rate-limit', 'enable', 'attribute'] + if conf.exists(c_attr): + sstp['radius_shaper_attr'] = conf.return_value(c_attr) + + c_vendor = ['rate-limit', 'enable', 'vendor'] + if conf.exists(c_vendor): + sstp['radius_shaper_vendor'] = conf.return_value(c_vendor) + + # + # authentication protocols + conf.set_level(base_path + ['authentication']) + if conf.exists(['protocols']): + auth_mods = { + 'pap': 'auth_pap', + 'chap': 'auth_chap_md5', + 'mschap': 'auth_mschap_v1', + 'mschap-v2': 'auth_mschap_v2' + } + + for proto in conf.return_values(['protocols']): + sstp['auth_proto'].append(auth_mods[proto]) + + else: + sstp['auth_proto'] = ['auth_mschap_v2'] + + # + # read in SSL certs + conf.set_level(base_path + ['ssl']) + if conf.exists(['ca-cert-file']): + sstp['ssl_ca'] = conf.return_value(['ca-cert-file']) + + if conf.exists(['cert-file']): + sstp['ssl_cert'] = conf.return_value(['cert-file']) + + if conf.exists(['key-file']): + sstp['ssl_key'] = conf.return_value(['key-file']) + + + # + # read in client ip pool settings + conf.set_level(base_path + ['network-settings', 'client-ip-settings']) + if conf.exists(['subnet']): + sstp['client_ip_pool'] = conf.return_values(['subnet']) + + if conf.exists(['gateway-address']): + sstp['client_gateway'] = conf.return_value(['gateway-address']) + + # + # read in network settings + conf.set_level(base_path + ['network-settings']) + if conf.exists(['name-server']): + sstp['dnsv4'] = conf.return_values(['name-server']) + + if conf.exists(['mtu']): + sstp['mtu'] = conf.return_value(['mtu']) + + # + # read in PPP stuff + conf.set_level(base_path + ['ppp-settings']) + if conf.exists('mppe'): + sstp['ppp_mppe'] = conf.return_value('ppp-settings mppe') + + if conf.exists(['lcp-echo-failure']): + sstp['ppp_echo_failure'] = conf.return_value(['lcp-echo-failure']) + + if conf.exists(['lcp-echo-interval']): + sstp['ppp_echo_interval'] = conf.return_value(['lcp-echo-interval']) + + if conf.exists(['lcp-echo-timeout']): + sstp['ppp_echo_timeout'] = conf.return_value(['lcp-echo-timeout']) + + return sstp + + +def verify(sstp): + if sstp is None: + return None + + # vertify auth settings + if sstp['auth_mode'] == 'local': + if not sstp['local_users']: + raise ConfigError('sstp-server authentication local-users required') + + for user in sstp['local_users']: + if not user['password']: + raise ConfigError(f"Password required for user {user['name']}") + + # if up/download is set, check that both have a value + if user['upload'] and not user['download']: + raise ConfigError(f"Download speed value required for user {user['name']}") + + if user['download'] and not user['upload']: + raise ConfigError(f"Upload speed value required for user {user['name']}") + + if not sstp['client_ip_pool']: + raise ConfigError("Client IP subnet required") + + if not sstp['client_gateway']: + raise ConfigError("Client gateway IP address required") + + if len(sstp['dnsv4']) > 2: + raise ConfigError("Only 2 DNS name-servers can be configured") + + if not sstp['ssl_ca'] or not sstp['ssl_cert'] or not sstp['ssl_key']: + raise ConfigError('One or more SSL certificates missing') + + ssl_path = ssl_cert_dir + '/' + if not os.path.exists(ssl_path + sstp['ssl_ca']): + ca = ssl_path + sstp['ssl_ca'] + raise ConfigError(f'CA cert file {ca} does not exist') + + if not os.path.exists(ssl_path + sstp['ssl_cert']): + cert = ssl_path + sstp['ssl_cert'] + raise ConfigError(f'SSL cert file {cert} does not exist') + + if not os.path.exists(ssl_path + sstp['ssl_key']): + key = ssl_path + sstp['ssl_key'] + raise ConfigError(f'SSL key file {key} does not exist') + + if sstp['auth_mode'] == 'radius': + if len(sstp['radius_server']) == 0: + raise ConfigError('RADIUS authentication requires at least one server') + + for radius in sstp['radius_server']: + if not radius['key']: + raise ConfigError(f"Missing RADIUS secret for server {{ radius['key'] }}") + +def generate(sstp): + if sstp is None: + return None + + # accel-cmd reload doesn't work so any change results in a restart of the daemon + tmpl = jinja2.Template(sstp_config, trim_blocks=True) + config_text = tmpl.render(sstp) + with open(sstp_conf, 'w') as f: + f.write(config_text) + + if sstp['local_users']: + tmpl = jinja2.Template(chap_secrets_conf, trim_blocks=True) + config_text = tmpl.render(sstp) + with open(chap_secrets, 'w') as f: + f.write(config_text) + + os.chmod(chap_secrets, S_IRUSR | S_IWUSR | S_IRGRP ) + else: + if os.path.exists(chap_secrets): + os.unlink(chap_secrets) + + return sstp + +def apply(sstp): + pid = 0 + if os.path.isfile(pidfile): + pid = 0 + with open(pidfile, 'r') as f: + pid = int(f.read()) + + if sstp is None: + if pid_exists(pid): + cmd = 'start-stop-daemon --stop --quiet' + cmd += ' --pidfile ' + pidfile + subprocess_cmd(cmd) + + if os.path.exists(pidfile): + os.remove(pidfile) + + return None + + if not pid_exists(pid): + if os.path.exists(pidfile): + os.remove(pidfile) + + cmd = 'start-stop-daemon --start --quiet' + cmd += ' --pidfile ' + pidfile + cmd += ' --exec /usr/sbin/accel-pppd' + # now pass arguments to accel-pppd binary + cmd += ' --' + cmd += ' -c ' + sstp_conf + cmd += ' -p ' + pidfile + cmd += ' -d' + subprocess_cmd(cmd) + + chk_con() + + else: + accel_cmd('restart') + + +if __name__ == '__main__': + try: + c = get_config() + verify(c) + generate(c) + apply(c) + except ConfigError as e: + print(e) + exit(1) |