diff options
Diffstat (limited to 'src/conf_mode/interfaces-wirelessmodem.py')
| -rwxr-xr-x | src/conf_mode/interfaces-wirelessmodem.py | 88 |
1 files changed, 67 insertions, 21 deletions
diff --git a/src/conf_mode/interfaces-wirelessmodem.py b/src/conf_mode/interfaces-wirelessmodem.py index 9efad3b8d..7aee5c9bd 100755 --- a/src/conf_mode/interfaces-wirelessmodem.py +++ b/src/conf_mode/interfaces-wirelessmodem.py @@ -20,10 +20,10 @@ from sys import exit from copy import deepcopy from jinja2 import Template from subprocess import Popen, PIPE -from pwd import getpwnam -from grp import getgrnam +from netifaces import interfaces from vyos.config import Config +from vyos.util import chown_file, chmod_x_file from vyos import ConfigError # Please be careful if you edit the template. @@ -70,6 +70,32 @@ CONNECT '' """ +config_wwan_ip_up_tmpl = """#!/bin/sh +# As WWAN is an "on demand" interface we need to re-configure it when it +# becomes 'up' + +ipparam=$6 + +# device name and metric are received using ipparam +device=`echo "$ipparam"|awk '{ print $1 }'` + +if [ "$device" != "{{ intf }}" ]; then + exit +fi + +# add some info to syslog +DIALER_PID=$(cat /var/run/{{ intf }}.pid) +logger -t pppd[$DIALER_PID] "executing $0" + +echo "{{ description }}" > /sys/class/net/{{ intf }}/ifalias + +{% if vrf -%} +logger -t pppd[$DIALER_PID] "configuring interface {{ intf }} for VRF {{ vrf }}" +ip link set dev {{ intf }} master {{ vrf }} +{% endif %} + +""" + default_config_data = { 'address': [], 'apn': '', @@ -84,7 +110,8 @@ default_config_data = { 'metric': '10', 'mtu': '1500', 'name_server': True, - 'intf': '' + 'intf': '', + 'vrf': '' } def subprocess_cmd(command): @@ -154,6 +181,10 @@ def get_config(): if conf.exists(['ondemand']): wwan['on_demand'] = True + # retrieve VRF instance + if conf.exists('vrf'): + wwan['vrf'] = conf.return_value(['vrf']) + return wwan def verify(wwan): @@ -168,41 +199,58 @@ def verify(wwan): if not os.path.exists(f"/dev/{wwan['device']}"): raise ConfigError(f"Device {wwan['device']} does not exist") + vrf_name = wwan['vrf'] + if vrf_name and vrf_name not in interfaces(): + raise ConfigError(f'VRF {vrf_name} does not exist') + return None def generate(wwan): - config_file_wwan = f"/etc/ppp/peers/{wwan['intf']}" + intf = wwan['intf'] + config_file_wwan = f'/etc/ppp/peers/{intf}' + config_file_wwan_chat = wwan['chat_script'] + ip_up_script_file = f'/etc/ppp/ip-up.d/9991-vyos-vrf-{intf}' + + config_files = [config_file_wwan, config_file_wwan_chat, ip_up_script_file] + + # Ensure directories for config files exist - otherwise create them on demand + for file in config_files: + dirname = os.path.dirname(file) + if not os.path.isdir(dirname): + os.mkdir(dirname) # Always hang-up WWAN connection prior generating new configuration file - cmd = f"systemctl stop ppp@{wwan['intf']}.service" + cmd = f'systemctl stop ppp@{intf}.service' subprocess_cmd(cmd) if wwan['deleted']: # Delete PPP configuration files - if os.path.exists(config_file_wwan): - os.unlink(config_file_wwan) - if os.path.exists(wwan['chat_script']): - os.unlink(wwan['chat_script']) + for file in config_files: + if os.path.exists(file): + os.unlink(file) else: - # PPP peers directory - dirname = os.path.dirname(config_file_wwan) - if not os.path.isdir(dirname): - os.mkdir(dirname) - # Create PPP configuration files tmpl = Template(config_wwan_tmpl) config_text = tmpl.render(wwan) with open(config_file_wwan, 'w') as f: f.write(config_text) - # Create PPP chat script tmpl = Template(chat_wwan_tmpl) config_text = tmpl.render(wwan) with open(wwan['chat_script'], 'w') as f: f.write(config_text) + # Create ip-pre-up script + tmpl = Template(config_wwan_ip_up_tmpl) + config_text = tmpl.render(wwan) + with open(ip_up_script_file, 'w') as f: + f.write(config_text) + + # make generated script file executable + chmod_x_file(ip_up_script_file) + return None def apply(wwan): @@ -211,15 +259,13 @@ def apply(wwan): return None if not wwan['disable']: - # dial WWAN connection - cmd = f"systemctl start ppp@{wwan['intf']}.service" + # "dial" WWAN connection + intf = wwan['intf'] + cmd = f'systemctl start ppp@{intf}.service' subprocess_cmd(cmd) # make logfile owned by root / vyattacfg - if os.path.isfile(wwan['logfile']): - uid = getpwnam('root').pw_uid - gid = getgrnam('vyattacfg').gr_gid - os.chown(wwan['logfile'], uid, gid) + chown_file(wwan['logfile'], 'root', 'vyattacfg') return None |