wwan: T3795: periodically check if WWAN connection needs a reconnect

(cherry picked from commit eb6247e4b464c36fa7441627b221d0db39429251)

3 files changed, 39 insertions, 0 deletions

diff --git a/debian/vyos-1x.install b/debian/vyos-1x.install
index 10426260a..29d74390f 100644
--- a/debian/vyos-1x.install
+++ b/debian/vyos-1x.install
@@ -1,3 +1,4 @@
+etc/cron.d
 etc/cron.hourly
 etc/dhcp
 etc/ipsec.d
diff --git a/src/etc/cron.d/check-wwan b/src/etc/cron.d/check-wwan
new file mode 100644
index 000000000..28190776f
--- /dev/null
+++ b/src/etc/cron.d/check-wwan
@@ -0,0 +1 @@
+*/5 * * * * root /usr/libexec/vyos/vyos-check-wwan.py
diff --git a/src/helpers/vyos-check-wwan.py b/src/helpers/vyos-check-wwan.py
new file mode 100755
index 000000000..c6e6c54b7
--- /dev/null
+++ b/src/helpers/vyos-check-wwan.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 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
+# 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/>.
+
+from vyos.configquery import VbashOpRun
+from vyos.configquery import ConfigTreeQuery
+
+from vyos.util import is_wwan_connected
+from vyos.util import call
+
+conf = ConfigTreeQuery()
+dict = conf.get_config_dict(['interfaces', 'wwan'], key_mangling=('-', '_'),
+                            get_first_key=True)
+
+for interface, interface_config in dict.items():
+    if not is_wwan_connected(interface):
+        if 'disable' in interface_config:
+            # do not restart this interface as it's disabled by the user
+            continue
+
+        #op = VbashOpRun()
+        #op.run(['connect', 'interface', interface])
+        call(f'VYOS_TAGNODE_VALUE={interface} /usr/libexec/vyos/conf_mode/interfaces-wwan.py')
+
+exit(0)