2 files changed, 96 insertions, 0 deletions
diff --git a/src/conf_mode/system_option.py b/src/conf_mode/system_option.py
index 2c31703e9..571ce55ec 100755
--- a/src/conf_mode/system_option.py
+++ b/src/conf_mode/system_option.py
@@ -24,6 +24,9 @@ from vyos.configverify import verify_source_interface
 from vyos.configverify import verify_interface_exists
 from vyos.system import grub_util
 from vyos.template import render
+from vyos.utils.dict import dict_search
+from vyos.utils.file import write_file
+from vyos.utils.kernel import check_kmod
 from vyos.utils.process import cmd
 from vyos.utils.process import is_systemd_service_running
 from vyos.utils.network import is_addr_assigned
@@ -36,6 +39,7 @@ curlrc_config = r'/etc/curlrc'
 ssh_config = r'/etc/ssh/ssh_config.d/91-vyos-ssh-client-options.conf'
 systemd_action_file = '/lib/systemd/system/ctrl-alt-del.target'
 usb_autosuspend = r'/etc/udev/rules.d/40-usb-autosuspend.rules'
+kernel_dynamic_debug = r'/sys/kernel/debug/dynamic_debug/control'
 time_format_to_locale = {
     '12-hour': 'en_US.UTF-8',
     '24-hour': 'en_GB.UTF-8'
@@ -157,8 +161,18 @@ def apply(options):
         time_format = time_format_to_locale.get(options['time_format'])
         cmd(f'localectl set-locale LC_TIME={time_format}')
 
+    # Reload UDEV, required for USB auto suspend
     cmd('udevadm control --reload-rules')
 
+    # Enable/disable dynamic debugging for kernel modules
+    modules = ['wireguard']
+    modules_enabled = dict_search('kernel.debug', options) or []
+    for module in modules:
+        if module in modules_enabled:
+            check_kmod(module)
+            write_file(kernel_dynamic_debug, f'module {module} +p')
+        else:
+            write_file(kernel_dynamic_debug, f'module {module} -p')
 
 if __name__ == '__main__':
     try:
diff --git a/src/op_mode/kernel_modules.py b/src/op_mode/kernel_modules.py
new file mode 100755
index 000000000..e381a1df7
--- /dev/null
+++ b/src/op_mode/kernel_modules.py
@@ -0,0 +1,82 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2024 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/>.
+#
+# Purpose:
+#     Provides commands for retrieving information about kernel modules.
+
+import sys
+import typing
+
+import vyos.opmode
+
+
+lsmod_tmpl = """
+{% for m in modules -%}
+Module: {{m.name}}
+
+{% if m.holders -%}
+Holders: {{m.holders | join(", ")}}
+{%- endif %}
+
+{% if m.drivers -%}
+Drivers: {{m.drivers | join(", ")}}
+{%- endif %}
+
+{% for k in m.fields -%}
+{{k}}: {{m["fields"][k]}}
+{% endfor %}
+{% if m.parameters %}
+
+Parameters:
+
+{% for p in m.parameters -%}
+{{p}}: {{m["parameters"][p]}}
+{% endfor -%}
+{% endif -%}
+
+-------------
+
+{% endfor %}
+"""
+
+def _get_raw_data(module=None):
+    from vyos.utils.kernel import get_module_data, lsmod
+
+    if module:
+        return [get_module_data(module)]
+    else:
+        return lsmod()
+
+def show(raw: bool, module: typing.Optional[str]):
+    from jinja2 import Template
+
+    data = _get_raw_data(module=module)
+
+    if raw:
+        return data
+    else:
+        t = Template(lsmod_tmpl)
+        output = t.render({"modules": data})
+        return output
+
+if __name__ == '__main__':
+    try:
+        res = vyos.opmode.run(sys.modules[__name__])
+        if res:
+            print(res)
+    except (ValueError, vyos.opmode.Error) as e:
+        print(e)
+        sys.exit(1)