feat: add virtual-ip module

plugins/modules/pfsense_virtual_ip.py

@@ -0,0 +1,309 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Copyright: (c) 2018, Frederic Bor <frederic.bor@wanadoo.fr>
+# Copyright: (c) 2021, Jan Wenzel <jan.wenzel@gonicus.de>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+
+ANSIBLE_METADATA = {'metadata_version': '1.1',
+                    'status': ['preview'],
+                    'supported_by': 'community'}
+
+DOCUMENTATION = """
+---
+module: pfsense_virtual_ip
+version_added: "0.4.2"
+author: Jan Wenzel (@coffeelover)
+short_description: Manage pfSense virtual ip settings
+description:
+  - Manage pfSense virtual ip settings
+notes:
+options:
+  mode:
+    description: Type
+    required: true
+    type: str
+    choices: ['proxyarp', 'carp', 'ipalias', 'other']
+  noexpand:
+    description: Disable expansion of this entry into IPs on NAT lists (e.g. 192.168.1.0/24 expands to 256 entries.)
+    required: false
+    type: bool
+  descr:
+    description: Description
+    required: false
+    type: str
+  interface:
+    description: Interface
+    required: true
+    type: str
+  vhid:
+    description: VHID Group
+    required: false
+    type: int
+  advbase:
+    description: Advertising Frequency Base
+    required: false
+    type: int
+  advskew:
+    description: Advertising Frequency Skew
+    required: false
+    type: int
+  password:
+    description: Virtual IP Password
+    required: false
+    type: str
+  uniqid:
+    description: Unique ID of Virtual IP in configuration
+    required: false
+    type: str
+  type:
+    description: Address Type
+    required: false
+    type: str
+    choices: ['single']
+    default: single
+  subnet_bits
+    description: Network's subnet mask
+    required: false
+    type: int
+    default: 32
+  subnet
+    description: Network subnet
+    required: false
+    type: str
+  state:
+    description: State in which to leave the Virtual IP
+    choices: [ "present", "absent" ]
+    default: present
+    type: str
+"""
+
+EXAMPLES = """
+"""
+
+RETURN = """
+"""
+
+import re
+from copy import deepcopy
+from ansible.module_utils.basic import AnsibleModule
+from ansible_collections.pfsensible.core.plugins.module_utils.module_base import PFSenseModuleBase
+
+
+VIRTUALIP_ARGUMENT_SPEC = dict(
+    mode=dict(required=True, type='str'),
+    interface=dict(required=True, type='str'),
+    vhid=dict(required=False, type='int'),
+    advskew=dict(required=False, type='int'),
+    advbase=dict(required=False, type='int'),
+    password=dict(required=False, type='str'),
+    uniqid=dict(required=False, type='str'),
+    descr=dict(required=False, type='str'),
+    type=dict(required=False, type='str', default='single'),
+    subnet_bits=dict(required=False, type='int', default=32),
+    subnet=dict(required=False, type='str'),
+    state=dict(default='present', choices=['present', 'absent'], type='str'),
+)
+
+VIRTUALIP_REQUIRED_IF = [
+    ["mode", "carp", ["uniqid", "password", "vhid", "advbase"]],
+    ["mode", "ipalias", ["uniqid"]],
+]
+
+# map field names between ansible and pfsense
+params_map = {}
+
+# fields with inverted logic
+inverted_list = []
+
+# fields that are not written to pfsense
+skip_list = ['state']
+
+class PFSenseVirtualIPModule(PFSenseModuleBase):
+    """ module managing pfsense virtual ip settings """
+
+    @staticmethod
+    def get_argument_spec():
+        """ return argument spec """
+        return VIRTUALIP_ARGUMENT_SPEC
+
+    ##############################
+    # init
+    #
+    def __init__(self, module, pfsense=None):
+        super(PFSenseVirtualIPModule, self).__init__(module, pfsense)
+        self.name = "virtual_ip"
+        self.root_elt = self.pfsense.get_element('virtualip')
+        self.obj = dict()
+
+        if self.root_elt is None:
+            self.root_elt = self.pfsense.new_element('virtualip')
+            self.pfsense.root.append(self.root_elt)
+
+    ##############################
+    # params processing
+    #
+    def _params_to_obj(self):
+        """ return a dict from module params """
+        params = self.params
+
+        obj = dict()
+        self.obj = obj
+
+        def _set_param(target, param):
+            if params.get(param) is not None:
+                if isinstance(params[param], str):
+                    target[param] = params[param]
+                else:
+                    target[param] = str(params[param])
+
+        def _set_param_bool(target, param):
+            if params.get(param) is not None:
+                value = params.get(param)
+                if value is True and param not in target:
+                    target[param] = ''
+                elif value is False and param in target:
+                    del target[param]
+
+        for param in VIRTUALIP_ARGUMENT_SPEC:
+            if param not in skip_list:
+                if VIRTUALIP_ARGUMENT_SPEC[param]['type'] == 'bool':
+                    _set_param_bool(obj, param)
+                else:
+                    _set_param(obj, param)
+
+        return obj
+
+
+    def _validate_params(self):
+        """ do some extra checks on input parameters """
+        params = self.params
+        return
+
+    ##############################
+    # XML processing
+    #
+    def _create_target(self):
+        """ create the XML target_elt """
+        return self.pfsense.new_element('vip')
+
+    def _find_target(self):
+        """ find the XML target elt """
+        for vip_elt in self.root_elt:
+            if self.params['mode'] in ['ipalias', 'carp']:
+                if vip_elt.find('uniqid') is not None and vip_elt.find('uniqid').text == self.params['uniqid']:
+                    return vip_elt
+            else:
+                if vip_elt.find('descr') is not None and vip_elt.find('descr').text == self.params['descr']:
+                    return vip_elt
+        return None
+
+    def _remove_deleted_params(self):
+        """ Remove from target_elt a few deleted params """
+        changed = False
+        for param in VIRTUALIP_ARGUMENT_SPEC:
+            if VIRTUALIP_ARGUMENT_SPEC[param]['type'] == 'bool':
+               if self.pfsense.remove_deleted_param_from_elt(self.target_elt, param, self.obj):
+                   changed = True
+
+        return changed
+
+    def _update(self):
+        """ make the target pfsense reload """
+        cmd = '''
+require_once("globals.inc");
+require_once("functions.inc");
+require_once("filter.inc");
+require_once("shaper.inc");
+require_once("interfaces.inc");
+require_once("util.inc");
+$check_carp = false;
+$retval = 0;
+'''
+
+        if self.params.get('mode') in ['carp', 'ipalias']:
+            cmd += '$uniqid = "' + self.params.get('uniqid') +'";\n'
+            cmd += '$subnet = "' + self.params.get('subnet') +'";\n'
+            cmd += '$interface = "' + self.params.get('interface') +'";\n'
+            cmd += '$vipif = get_real_interface($interface);\n'
+
+        if self.params.get('state') == 'present':
+            if self.params.get('mode') in ['carp', 'ipalias']:
+                cmd += '$check_carp = true;\n'
+                cmd += 'foreach ($config["virtualip"]["vip"] as $vip) {\n'
+                cmd += 'if ($vip["uniqid"] == $uniqid) {\n'
+                cmd += 'interface_' + self.params.get('mode') + '_configure($vip);\n'
+                cmd += '}\n}\n'
+        else:
+            if self.params.get('mode') == 'carp':
+                cmd += 'if (does_interface_exist($vipif)) {\n'
+                cmd += 'if (is_ipaddrv6($subnet)) {\n'
+                cmd += 'mwexec("/sbin/ifconfig " . escapeshellarg($vipif) . " inet6 " . escapeshellarg($subnet) . " delete");\n'
+                cmd += '} else {\n'
+                cmd += 'pfSense_interface_deladdress($vipif, $subnet);\n'
+                cmd += '}\n}\n'
+            elif self.params.get('mode') == 'ipalias':
+                cmd += 'if (does_interface_exist($vipif)) {\n'
+                cmd += 'if (is_ipaddrv6($subnet)) {\n'
+                cmd += 'mwexec("/sbin/ifconfig " . escapeshellarg($vipif) . " inet6 " . escapeshellarg($subnet) . " -alias");\n'
+                cmd += '} else {\n'
+                cmd += 'pfSense_interface_deladdress($vipif, $subnet);\n'
+                cmd += '}\n}\n'
+
+        cmd += '''
+if ($check_carp === true && !get_carp_status()) {
+    set_single_sysctl("net.inet.carp.allow", "1");
+}
+$retval |= filter_configure();
+$retval |= mwexec("/etc/rc.filter_synchronize");
+clear_subsystem_dirty('vip');'''
+
+        return self.pfsense.phpshell(cmd)
+
+    ##############################
+    # Logging
+    #
+    @staticmethod
+    def _get_obj_name():
+        """ return obj's name """
+        return "vip"
+
+    def _log_fields(self, before=None):
+        """ generate pseudo-CLI command fields parameters to create an obj """
+        values = ''
+
+        if before is None:
+            for param in VIRTUALIP_ARGUMENT_SPEC:
+                if param not in skip_list:
+                    if VIRTUALIP_ARGUMENT_SPEC[param]['type'] == 'bool':
+                        values += self.format_cli_field(self.obj, param, fvalue=self.fvalue_bool)
+                    else:
+                        values += self.format_cli_field(self.obj, param)
+        else:
+            for param in VIRTUALIP_ARGUMENT_SPEC:
+                if param not in skip_list:
+                    if VIRTUALIP_ARGUMENT_SPEC[param]['type'] == 'bool':
+                        values += self.format_updated_cli_field(self.obj, before, param, fvalue=self.fvalue_bool, add_comma=(values), log_none=False)
+                    else:
+                        values += self.format_updated_cli_field(self.obj, before, param, add_comma=(values), log_none=False)
+
+        return values
+
+
+def main():
+    module = AnsibleModule(
+        argument_spec=VIRTUALIP_ARGUMENT_SPEC,
+        required_if=VIRTUALIP_REQUIRED_IF,
+        supports_check_mode=True)
+
+    pfmodule = PFSenseVirtualIPModule(module)
+    pfmodule.run(module.params)
+    pfmodule.commit_changes()
+
+
+if __name__ == '__main__':
+    main()