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authorChristian Poessinger <christian@poessinger.com>2021-12-10 22:10:10 +0100
committerChristian Poessinger <christian@poessinger.com>2021-12-10 22:17:06 +0100
commit2daa8aa6892d990d12c50bf16095dac0e1f179c7 (patch)
tree885ce6340dbd74b90cf5751fc3b65f8a1767bf65 /src/conf_mode/interfaces-wwan.py
parent544e73ff26bb0b9d282159e4a734ad531213d816 (diff)
downloadvyos-1x-2daa8aa6892d990d12c50bf16095dac0e1f179c7.tar.gz
vyos-1x-2daa8aa6892d990d12c50bf16095dac0e1f179c7.zip
wwan: T3795: only run ModemManager when interface is in use
(cherry picked from commit a8ebb4817955b3f33f773a4d05c753dfc77958cd)
Diffstat (limited to 'src/conf_mode/interfaces-wwan.py')
-rwxr-xr-xsrc/conf_mode/interfaces-wwan.py39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/conf_mode/interfaces-wwan.py b/src/conf_mode/interfaces-wwan.py
index f013e5411..7fdd0d447 100755
--- a/src/conf_mode/interfaces-wwan.py
+++ b/src/conf_mode/interfaces-wwan.py
@@ -17,6 +17,7 @@
import os
from sys import exit
+from time import sleep
from vyos.config import Config
from vyos.configdict import get_interface_dict
@@ -28,10 +29,14 @@ from vyos.util import cmd
from vyos.util import call
from vyos.util import dict_search
from vyos.util import DEVNULL
+from vyos.util import is_systemd_service_active
+from vyos.template import render
from vyos import ConfigError
from vyos import airbag
airbag.enable()
+service_name = 'ModemManager.service'
+
def get_config(config=None):
"""
Retrive CLI config as dictionary. Dictionary can never be empty, as at least the
@@ -44,6 +49,20 @@ def get_config(config=None):
base = ['interfaces', 'wwan']
wwan = get_interface_dict(conf, base)
+ # We need to know the amount of other WWAN interfaces as ModemManager needs
+ # to be started or stopped.
+ conf.set_level(base)
+ wwan['other_interfaces'] = conf.get_config_dict([], key_mangling=('-', '_'),
+ get_first_key=True,
+ no_tag_node_value_mangle=True)
+
+ # This if-clause is just to be sure - it will always evaluate to true
+ ifname = wwan['ifname']
+ if ifname in wwan['other_interfaces']:
+ del wwan['other_interfaces'][ifname]
+ if len(wwan['other_interfaces']) == 0:
+ del wwan['other_interfaces']
+
return wwan
def verify(wwan):
@@ -64,6 +83,18 @@ def generate(wwan):
return None
def apply(wwan):
+ if not is_systemd_service_active(service_name):
+ cmd(f'systemctl start {service_name}')
+
+ counter = 100
+ # Wait until a modem is detected and then we can continue
+ while counter > 0:
+ counter -= 1
+ tmp = cmd('mmcli -L')
+ if tmp != 'No modems were found':
+ break
+ sleep(0.250)
+
# we only need the modem number. wwan0 -> 0, wwan1 -> 1
modem = wwan['ifname'].lstrip('wwan')
base_cmd = f'mmcli --modem {modem}'
@@ -73,6 +104,11 @@ def apply(wwan):
w = WWANIf(wwan['ifname'])
if 'deleted' in wwan or 'disable' in wwan:
w.remove()
+
+ # There are no other WWAN interfaces - stop the daemon
+ if 'other_interfaces' not in wwan:
+ cmd(f'systemctl stop {service_name}')
+
return None
ip_type = 'ipv4'
@@ -93,6 +129,9 @@ def apply(wwan):
call(command, stdout=DEVNULL)
w.update(wwan)
+ if 'other_interfaces' not in wwan and 'deleted' in wwan:
+ cmd(f'systemctl start {service_name}')
+
return None
if __name__ == '__main__':