diff options
Diffstat (limited to 'src/conf_mode/interface-wireguard.py')
| -rwxr-xr-x | src/conf_mode/interface-wireguard.py | 427 |
1 files changed, 223 insertions, 204 deletions
diff --git a/src/conf_mode/interface-wireguard.py b/src/conf_mode/interface-wireguard.py index 40356da51..265491993 100755 --- a/src/conf_mode/interface-wireguard.py +++ b/src/conf_mode/interface-wireguard.py @@ -24,227 +24,246 @@ import subprocess from vyos.config import Config from vyos import ConfigError -from vyos.ifconfig import WireGuardIf as wg_if +from vyos.ifconfig import WireGuardIf ifname = str(os.environ['VYOS_TAGNODE_VALUE']) -wg_intfc = wg_if(ifname) +intfc = WireGuardIf(ifname) dir = r'/config/auth/wireguard' pk = dir + '/private.key' pub = dir + '/public.key' psk_file = dir + '/psk' + def check_kmod(): - if not os.path.exists('/sys/module/wireguard'): - sl.syslog(sl.LOG_NOTICE, "loading wirguard kmod") - if os.system('sudo modprobe wireguard') != 0: - sl.syslog(sl.LOG_NOTICE, "modprobe wireguard failed") - raise ConfigError("modprobe wireguard failed") + if not os.path.exists('/sys/module/wireguard'): + sl.syslog(sl.LOG_NOTICE, "loading wirguard kmod") + if os.system('sudo modprobe wireguard') != 0: + sl.syslog(sl.LOG_NOTICE, "modprobe wireguard failed") + raise ConfigError("modprobe wireguard failed") + def get_config(): - c = Config() - if not c.exists('interfaces wireguard'): - return None - - config_data = { - ifname : { - 'addr' : '', - 'descr' : ifname, - 'lport' : None, - 'status' : 'exists', - 'state' : 'enabled', - 'fwmark' : 0x00, - 'mtu' : 1420, - 'peer' : {} - } - } - - c.set_level('interfaces wireguard') - if not c.exists_effective(ifname): - config_data[ifname]['status'] = 'create' - - if not c.exists(ifname) and c.exists_effective(ifname): - config_data[ifname]['status'] = 'delete' - - if config_data[ifname]['status'] != 'delete': - if c.exists(ifname + ' address'): - config_data[ifname]['addr'] = c.return_values(ifname + ' address') - if c.exists(ifname + ' disable'): - config_data[ifname]['state'] = 'disable' - if c.exists(ifname + ' port'): - config_data[ifname]['lport'] = c.return_value(ifname + ' port') - if c.exists(ifname + ' fwmark'): - config_data[ifname]['fwmark'] = c.return_value(ifname + ' fwmark') - if c.exists(ifname + ' description'): - config_data[ifname]['descr'] = c.return_value(ifname + ' description') - if c.exists(ifname + ' mtu'): - config_data[ifname]['mtu'] = c.return_value(ifname + ' mtu') - if c.exists(ifname + ' peer'): - for p in c.list_nodes(ifname + ' peer'): - if not c.exists(ifname + ' peer ' + p + ' disable'): - config_data[ifname]['peer'].update( - { - p : { - 'allowed-ips' : [], - 'endpoint' : '', - 'pubkey' : '' - } - } - ) - if c.exists(ifname + ' peer ' + p + ' pubkey'): - config_data[ifname]['peer'][p]['pubkey'] = c.return_value(ifname + ' peer ' + p + ' pubkey') - if c.exists(ifname + ' peer ' + p + ' allowed-ips'): - config_data[ifname]['peer'][p]['allowed-ips'] = c.return_values(ifname + ' peer ' + p + ' allowed-ips') - if c.exists(ifname + ' peer ' + p + ' endpoint'): - config_data[ifname]['peer'][p]['endpoint'] = c.return_value(ifname + ' peer ' + p + ' endpoint') - if c.exists(ifname + ' peer ' + p + ' persistent-keepalive'): - config_data[ifname]['peer'][p]['persistent-keepalive'] = c.return_value(ifname + ' peer ' + p + ' persistent-keepalive') - if c.exists(ifname + ' peer ' + p + ' preshared-key'): - config_data[ifname]['peer'][p]['psk'] = c.return_value(ifname + ' peer ' + p + ' preshared-key') - - return config_data + c = Config() + if not c.exists('interfaces wireguard'): + return None + + config_data = { + ifname: { + 'addr': '', + 'descr': ifname, + 'lport': None, + 'status': 'exists', + 'state': 'enabled', + 'fwmark': 0x00, + 'mtu': 1420, + 'peer': {} + } + } + + c.set_level('interfaces wireguard') + if not c.exists_effective(ifname): + config_data[ifname]['status'] = 'create' + + if not c.exists(ifname) and c.exists_effective(ifname): + config_data[ifname]['status'] = 'delete' + + if config_data[ifname]['status'] != 'delete': + if c.exists(ifname + ' address'): + config_data[ifname]['addr'] = c.return_values(ifname + ' address') + if c.exists(ifname + ' disable'): + config_data[ifname]['state'] = 'disable' + if c.exists(ifname + ' port'): + config_data[ifname]['lport'] = c.return_value(ifname + ' port') + if c.exists(ifname + ' fwmark'): + config_data[ifname]['fwmark'] = c.return_value(ifname + ' fwmark') + if c.exists(ifname + ' description'): + config_data[ifname]['descr'] = c.return_value( + ifname + ' description') + if c.exists(ifname + ' mtu'): + config_data[ifname]['mtu'] = c.return_value(ifname + ' mtu') + if c.exists(ifname + ' peer'): + for p in c.list_nodes(ifname + ' peer'): + if not c.exists(ifname + ' peer ' + p + ' disable'): + config_data[ifname]['peer'].update( + { + p: { + 'allowed-ips': [], + 'endpoint': '', + 'pubkey': '' + } + } + ) + if c.exists(ifname + ' peer ' + p + ' pubkey'): + config_data[ifname]['peer'][p]['pubkey'] = c.return_value( + ifname + ' peer ' + p + ' pubkey') + if c.exists(ifname + ' peer ' + p + ' allowed-ips'): + config_data[ifname]['peer'][p]['allowed-ips'] = c.return_values( + ifname + ' peer ' + p + ' allowed-ips') + if c.exists(ifname + ' peer ' + p + ' endpoint'): + config_data[ifname]['peer'][p]['endpoint'] = c.return_value( + ifname + ' peer ' + p + ' endpoint') + if c.exists(ifname + ' peer ' + p + ' persistent-keepalive'): + config_data[ifname]['peer'][p]['persistent-keepalive'] = c.return_value( + ifname + ' peer ' + p + ' persistent-keepalive') + if c.exists(ifname + ' peer ' + p + ' preshared-key'): + config_data[ifname]['peer'][p]['psk'] = c.return_value( + ifname + ' peer ' + p + ' preshared-key') + + return config_data + def verify(c): - if not c: - return None + if not c: + return None - if not os.path.exists(pk): - raise ConfigError("No keys found, generate them by executing: \'run generate wireguard keypair\'") + if not os.path.exists(pk): + raise ConfigError( + "No keys found, generate them by executing: \'run generate wireguard keypair\'") + + if c[ifname]['status'] != 'delete': + if not c[ifname]['addr']: + raise ConfigError("ERROR: IP address required") + if not c[ifname]['peer']: + raise ConfigError("ERROR: peer required") + for p in c[ifname]['peer']: + if not c[ifname]['peer'][p]['allowed-ips']: + raise ConfigError("ERROR: allowed-ips required for peer " + p) + if not c[ifname]['peer'][p]['pubkey']: + raise ConfigError("peer pubkey required for peer " + p) - if c[ifname]['status'] != 'delete': - if not c[ifname]['addr']: - raise ConfigError("ERROR: IP address required") - if not c[ifname]['peer']: - raise ConfigError("ERROR: peer required") - for p in c[ifname]['peer']: - if not c[ifname]['peer'][p]['allowed-ips']: - raise ConfigError("ERROR: allowed-ips required for peer " + p) - if not c[ifname]['peer'][p]['pubkey']: - raise ConfigError("peer pubkey required for peer " + p) def apply(c): - ### no wg config left, delete all wireguard devices, if any - if not c: - net_devs = os.listdir('/sys/class/net/') - for dev in net_devs: - if os.path.isdir('/sys/class/net/' + dev): - buf = open('/sys/class/net/' + dev + '/uevent', 'r').read() - if re.search("DEVTYPE=wireguard", buf, re.I|re.M): - wg_intf = re.sub("INTERFACE=", "", re.search("INTERFACE=.*", buf, re.I|re.M).group(0)) - sl.syslog(sl.LOG_NOTICE, "removing interface " + wg_intf) - subprocess.call(['ip l d dev ' + wg_intf + ' >/dev/null'], shell=True) - return None - - ### interface removal - if c[ifname]['status'] == 'delete': - sl.syslog(sl.LOG_NOTICE, "removing interface " + ifname) - wg_intfc.remove() - return None - - c_eff = Config() - c_eff.set_level('interfaces wireguard') - - ## interface state - if c[ifname]['state'] == 'disable': - sl.syslog(sl.LOG_NOTICE, "disable interface " + ifname) - wg_intfc.state = 'down' - else: - if not wg_intfc.state == 'up': - sl.syslog(sl.LOG_NOTICE, "enable interface " + ifname) - wg_intfc.state = 'up' - - ## IP address - if not c_eff.exists_effective(ifname + ' address'): - for ip in c[ifname]['addr']: - wg_intfc.add_addr(ip) - else: - addr_eff = c_eff.return_effective_values(ifname + ' address') - addr_rem = list(set(addr_eff) - set(c[ifname]['addr'])) - addr_add = list(set(c[ifname]['addr']) - set(addr_eff)) - - if len(addr_rem) !=0: - for ip in addr_rem: - sl.syslog(sl.LOG_NOTICE, "remove IP address {0} from {1}".format(ip,ifname)) - wg_intfc.del_addr(ip) - - if len(addr_add) !=0: - for ip in addr_add: - sl.syslog(sl.LOG_NOTICE, "add IP address {0} to {1}".format(ip,ifname)) - wg_intfc.add_addr(ip) - - ## interface MTU - if c[ifname]['mtu'] != 1420: - wg_intfc.mtu = int(c[ifname]['mtu']) - else: - ## default is set to 1420 in config_data - wg_intfc.mtu = int(c[ifname]['mtu']) - - ## ifalias for snmp from description - descr_eff = c_eff.return_effective_value(ifname + ' description') - if descr_eff != c[ifname]['descr']: - wg_intfc.ifalias = str(c[ifname]['descr']) - - ## peer deletion - peer_eff = c_eff.list_effective_nodes(ifname + ' peer') - peer_cnf = [] - - try: + # no wg config left, delete all wireguard devices, if any + if not c: + net_devs = os.listdir('/sys/class/net/') + for dev in net_devs: + if os.path.isdir('/sys/class/net/' + dev): + buf = open('/sys/class/net/' + dev + '/uevent', 'r').read() + if re.search("DEVTYPE=wireguard", buf, re.I | re.M): + wg_intf = re.sub("INTERFACE=", "", re.search( + "INTERFACE=.*", buf, re.I | re.M).group(0)) + sl.syslog(sl.LOG_NOTICE, "removing interface " + wg_intf) + subprocess.call( + ['ip l d dev ' + wg_intf + ' >/dev/null'], shell=True) + return None + + # interface removal + if c[ifname]['status'] == 'delete': + sl.syslog(sl.LOG_NOTICE, "removing interface " + ifname) + intfc.remove() + return None + + c_eff = Config() + c_eff.set_level('interfaces wireguard') + + # interface state + if c[ifname]['state'] == 'disable': + sl.syslog(sl.LOG_NOTICE, "disable interface " + ifname) + intfc.state = 'down' + else: + if not intfc.state == 'up': + sl.syslog(sl.LOG_NOTICE, "enable interface " + ifname) + intfc.state = 'up' + + # IP address + if not c_eff.exists_effective(ifname + ' address'): + for ip in c[ifname]['addr']: + intfc.add_addr(ip) + else: + addr_eff = c_eff.return_effective_values(ifname + ' address') + addr_rem = list(set(addr_eff) - set(c[ifname]['addr'])) + addr_add = list(set(c[ifname]['addr']) - set(addr_eff)) + + if len(addr_rem) != 0: + for ip in addr_rem: + sl.syslog( + sl.LOG_NOTICE, "remove IP address {0} from {1}".format(ip, ifname)) + intfc.del_addr(ip) + + if len(addr_add) != 0: + for ip in addr_add: + sl.syslog( + sl.LOG_NOTICE, "add IP address {0} to {1}".format(ip, ifname)) + intfc.add_addr(ip) + + # interface MTU + if c[ifname]['mtu'] != 1420: + intfc.mtu = int(c[ifname]['mtu']) + else: + # default is set to 1420 in config_data + intfc.mtu = int(c[ifname]['mtu']) + + # ifalias for snmp from description + descr_eff = c_eff.return_effective_value(ifname + ' description') + if descr_eff != c[ifname]['descr']: + intfc.ifalias = str(c[ifname]['descr']) + + # peer deletion + peer_eff = c_eff.list_effective_nodes(ifname + ' peer') + peer_cnf = [] + + try: + for p in c[ifname]['peer']: + peer_cnf.append(p) + except KeyError: + pass + + peer_rem = list(set(peer_eff) - set(peer_cnf)) + for p in peer_rem: + pkey = c_eff.return_effective_value(ifname + ' peer ' + p + ' pubkey') + intfc.remove_peer(pkey) + + # peer key update + for p in peer_eff: + if p in peer_cnf: + ekey = c_eff.return_effective_value( + ifname + ' peer ' + p + ' pubkey') + nkey = c[ifname]['peer'][p]['pubkey'] + if nkey != ekey: + sl.syslog( + sl.LOG_NOTICE, "peer {0} pubkey changed from {1} to {2} on interface {3}".format(p, ekey, nkey, ifname)) + print ( + "peer {0} pubkey changed from {1} to {2} on interface {3}".format(p, ekey, nkey, ifname)) + intfc.remove_peer(ekey) + + intfc.config['private-key'] = pk for p in c[ifname]['peer']: - peer_cnf.append(p) - except KeyError: - pass - - peer_rem = list(set(peer_eff) - set(peer_cnf)) - for p in peer_rem: - pkey = c_eff.return_effective_value( ifname + ' peer ' + p +' pubkey') - wg_intfc.wg_remove_peer(pkey) - - ## peer key update - for p in peer_eff: - if p in peer_cnf: - ekey = c_eff.return_effective_value( ifname + ' peer ' + p +' pubkey') - nkey = c[ifname]['peer'][p]['pubkey'] - if nkey != ekey: - sl.syslog(sl.LOG_NOTICE, "peer {0} pubkey changed from {1} to {2} on interface {3}".format(p, ekey, nkey, ifname)) - print ("peer {0} pubkey changed from {1} to {2} on interface {3}".format(p, ekey, nkey, ifname)) - wg_intfc.wg_remove_peer(ekey) - - wg_intfc.wg_config['private-key'] = pk - for p in c[ifname]['peer']: - wg_intfc.wg_config['pubkey'] = str(c[ifname]['peer'][p]['pubkey']) - wg_intfc.wg_config['allowed-ips'] = (c[ifname]['peer'][p]['allowed-ips']) - - ## listen-port - if c[ifname]['lport']: - wg_intfc.wg_config['port'] = c[ifname]['lport'] - - ## fwmark - if c[ifname]['fwmark']: - wg_intfc.wg_config['fwmark'] = c[ifname]['fwmark'] - - ## endpoint - if c[ifname]['peer'][p]['endpoint']: - wg_intfc.wg_config['endpoint'] = c[ifname]['peer'][p]['endpoint'] - - ## persistent-keepalive - if 'persistent-keepalive' in c[ifname]['peer'][p]: - wg_intfc.wg_config['keepalive'] = c[ifname]['peer'][p]['persistent-keepalive'] - - ## preshared-key - needs to be read from a file - if 'psk' in c[ifname]['peer'][p]: - old_umask = os.umask(0o077) - open(psk_file, 'w').write(str(c[ifname]['peer'][p]['psk'])) - os.umask(old_umask) - wg_intfc.wg_config['psk'] = psk_file - - wg_intfc.wg_update() + intfc.config['pubkey'] = str(c[ifname]['peer'][p]['pubkey']) + intfc.config['allowed-ips'] = (c[ifname]['peer'][p]['allowed-ips']) + + # listen-port + if c[ifname]['lport']: + intfc.config['port'] = c[ifname]['lport'] + + # fwmark + if c[ifname]['fwmark']: + intfc.config['fwmark'] = c[ifname]['fwmark'] + + # endpoint + if c[ifname]['peer'][p]['endpoint']: + intfc.config['endpoint'] = c[ifname]['peer'][p]['endpoint'] + + # persistent-keepalive + if 'persistent-keepalive' in c[ifname]['peer'][p]: + intfc.config['keepalive'] = c[ifname][ + 'peer'][p]['persistent-keepalive'] + + # preshared-key - needs to be read from a file + if 'psk' in c[ifname]['peer'][p]: + old_umask = os.umask(0o077) + open(psk_file, 'w').write(str(c[ifname]['peer'][p]['psk'])) + os.umask(old_umask) + intfc.config['psk'] = psk_file + + intfc.update() if __name__ == '__main__': - try: - check_kmod() - c = get_config() - verify(c) - apply(c) - except ConfigError as e: - print(e) - sys.exit(1) + try: + check_kmod() + c = get_config() + verify(c) + apply(c) + except ConfigError as e: + print(e) + sys.exit(1) |