T5474: establish common file name pattern for XML conf mode commands

We will use _ as CLI level divider. The XML definition filename and also
the Python helper should match the CLI node.

Example:
set interfaces ethernet -> interfaces_ethernet.xml.in
set interfaces bond -> interfaces_bond.xml.in
set service dhcp-server -> service_dhcp-server-xml.in

(cherry picked from commit 4ef110fd2c501b718344c72d495ad7e16d2bd465)

1 files changed, 159 insertions, 0 deletions

diff --git a/src/conf_mode/system_option.py b/src/conf_mode/system_option.py
new file mode 100755
index 000000000..d92121b3d
--- /dev/null
+++ b/src/conf_mode/system_option.py
@@ -0,0 +1,159 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2019-2023 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/>.
+
+import os
+
+from netifaces import interfaces
+from sys import exit
+from time import sleep
+
+from vyos.config import Config
+from vyos.configverify import verify_source_interface
+from vyos.template import render
+from vyos.utils.process import cmd
+from vyos.utils.process import is_systemd_service_running
+from vyos.utils.network import is_addr_assigned
+from vyos.utils.network import is_intf_addr_assigned
+from vyos import ConfigError
+from vyos import airbag
+airbag.enable()
+
+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'
+time_format_to_locale = {
+    '12-hour': 'en_US.UTF-8',
+    '24-hour': 'en_GB.UTF-8'
+}
+
+
+def get_config(config=None):
+    if config:
+        conf = config
+    else:
+        conf = Config()
+    base = ['system', 'option']
+    options = conf.get_config_dict(base, key_mangling=('-', '_'),
+                                   get_first_key=True,
+                                   with_recursive_defaults=True)
+
+    return options
+
+def verify(options):
+    if 'http_client' in options:
+        config = options['http_client']
+        if 'source_interface' in config:
+            if not config['source_interface'] in interfaces():
+                raise ConfigError(f'Source interface {source_interface} does not '
+                                  f'exist'.format(**config))
+
+        if {'source_address', 'source_interface'} <= set(config):
+            raise ConfigError('Can not define both HTTP source-interface and source-address')
+
+        if 'source_address' in config:
+            if not is_addr_assigned(config['source_address']):
+                raise ConfigError('No interface with give address specified!')
+
+    if 'ssh_client' in options:
+        config = options['ssh_client']
+        if 'source_address' in config:
+            address = config['source_address']
+            if not is_addr_assigned(config['source_address']):
+                raise ConfigError('No interface with address "{address}" configured!')
+
+        if 'source_interface' in config:
+            verify_source_interface(config)
+            if 'source_address' in config:
+                address = config['source_address']
+                interface = config['source_interface']
+                if not is_intf_addr_assigned(interface, address):
+                    raise ConfigError(f'Address "{address}" not assigned on interface "{interface}"!')
+
+    return None
+
+def generate(options):
+    render(curlrc_config, 'system/curlrc.j2', options)
+    render(ssh_config, 'system/ssh_config.j2', options)
+    return None
+
+def apply(options):
+    # System bootup beep
+    if 'startup_beep' in options:
+        cmd('systemctl enable vyos-beep.service')
+    else:
+        cmd('systemctl disable vyos-beep.service')
+
+    # Ctrl-Alt-Delete action
+    if os.path.exists(systemd_action_file):
+        os.unlink(systemd_action_file)
+    if 'ctrl_alt_delete' in options:
+        if options['ctrl_alt_delete'] == 'reboot':
+            os.symlink('/lib/systemd/system/reboot.target', systemd_action_file)
+        elif options['ctrl_alt_delete'] == 'poweroff':
+            os.symlink('/lib/systemd/system/poweroff.target', systemd_action_file)
+
+    # Configure HTTP client
+    if 'http_client' not in options:
+        if os.path.exists(curlrc_config):
+            os.unlink(curlrc_config)
+
+    # Configure SSH client
+    if 'ssh_client' not in options:
+        if os.path.exists(ssh_config):
+            os.unlink(ssh_config)
+
+    # Reboot system on kernel panic
+    timeout = '0'
+    if 'reboot_on_panic' in options:
+        timeout = '60'
+    with open('/proc/sys/kernel/panic', 'w') as f:
+        f.write(timeout)
+
+    # tuned - performance tuning
+    if 'performance' in options:
+        cmd('systemctl restart tuned.service')
+        # wait until daemon has started before sending configuration
+        while (not is_systemd_service_running('tuned.service')):
+            sleep(0.250)
+        cmd('tuned-adm profile network-{performance}'.format(**options))
+    else:
+        cmd('systemctl stop tuned.service')
+
+    # Keyboard layout - there will be always the default key inside the dict
+    # but we check for key existence anyway
+    if 'keyboard_layout' in options:
+        cmd('loadkeys {keyboard_layout}'.format(**options))
+
+    # Enable/diable root-partition-auto-resize SystemD service
+    if 'root_partition_auto_resize' in options:
+      cmd('systemctl enable root-partition-auto-resize.service')
+    else:
+      cmd('systemctl disable root-partition-auto-resize.service')
+
+    # Time format 12|24-hour
+    if 'time_format' in options:
+        time_format = time_format_to_locale.get(options['time_format'])
+        cmd(f'localectl set-locale LC_TIME={time_format}')
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)