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about opnsense-helper

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The backend api for opnsense

  • create, assign and enable lan / phy interfaces and all the other stuff that is Not enabled in the opnsense api
  • use the config_manager to apply all your configs in runtime at once
  • uses the opnsense backend via shh
  • configctl and pluginctl commands
  • around 80 opnsense scripts you can call
  • automatically configures your Vlan and Phy Interfaces after applying configuration

install

pip

pip install opnsense-helper

usage

  • you can run the provided snippets directly by pulling the example file

required variables

  • import the package and define the needed variables for the main class
from opnsense_helper.opnsense_helper import Opnsense_Helper
from opnsense_helper.config_manager.config_manager import Vlan, Dhcpd, Interface

host= "192.168.1.103"
auth={
"user":"root",
"passw":"opnsense",
}
temp_path="./config.xml"
helper=Opnsense_Helper(host=host,ssh_auth=auth,temp_path=temp_path, init=True)

config_manager

create the module objects

add or change existing modules

  • currently supports vlans, dhcpd, interfaces and soon routes, as well as firewall rules
  • create the objects of the modules you want to set
vlans=[
Vlan("vlan1","vtnet1","1"),
Vlan("vlan2","vtnet1","2"),
Vlan("vlan3","vtnet1","3")
]

interfaces=[
Interface("opt1","router","vtnet1","1","200.1.0.1","24"),
Interface("opt2","vlan1","vlan0.1", "1", '200.0.1.1', "24", '00:00:00:01:00:01'),
Interface("opt3","vlan2","vlan0.2", "2", '200.0.2.1', "24", '00:00:00:01:00:02'),
Interface("opt4","vlan3","vlan0.3", "3", '200.0.3.1', "24", '00:00:00:01:00:03'),
]

dhcp=[
Dhcpd("opt1","1",{'from': '200.1.0.2', '_to': '200.1.0.2'}),
Dhcpd("opt2","1",{'from': '200.0.1.1', '_to': '200.0.1.100'}),
Dhcpd("opt3","1",{'from': '200.0.2.1', '_to': '200.0.2.100'}),
Dhcpd("opt4","1",{'from': '200.0.3.1', '_to': '200.0.3.100'}),
]

assign the config

helper.set("interfaces",interfaces)
helper.set("dhcpd",dhcp)
helper.set("vlans",vlans)
helper.save(temp_path)
#helper.remove_items()

scripts and commands

  • you can run every script from /usr/local/opnsense/scripts/
  • you can use every pluginctl and configctl command
  • use <command: str> <argument:str> <flags:arr>
  • besides command, argument may be required based on the method

Example

    helper.scripts.system.run("status")
    helper.scripts.routes.run("show_routes")

    helper.commands.pluginctl.run("ipv4")
    helper.commands.pluginctl.run("service", "dhcpd status")
    helper.commands.pluginctl.run("config", "dhcp")
Result
$ /usr/local/opnsense/scripts/system/status.php*  
{"CrashReporter":{"statusCode":2,"message":"No problems were detected.","logLocation":"\/crash_reporter.php","timestamp":"0"},"Firewall":{"statusCode":-1,"message":"There were error(s) loading the rules: \/tmp\/rules.debug:25: syntax error - The line in question reads [25]: set loginterface \n","logLocation":"\/ui\/diagnostics\/log\/core\/firewall","timestamp":1731025409}}

$ /usr/local/opnsense/scripts/routes/show_routes.py*  
destination             gateway         flags           nhop#           mtu             netif           expire
ipv4    default 192.168.0.1     UGS     5       1500    vtnet0
ipv4    localhost       link#4  UH      2       16384   lo0
ipv4    192.168.0.1     link#1  UHS     4       1500    vtnet0
ipv4    192.168.1.0/24  link#1  U       1       1500    vtnet0
ipv4    192.168.1.1     link#1  UHS     4       1500    vtnet0
ipv4    192.168.1.103   link#1  UHS     3       16384   lo0
ipv4    200.1.0.0/24    link#2  U       6       1500    vtnet1
ipv4    200.1.0.1       link#2  UHS     7       16384   lo0
ipv6    localhost       link#4  UHS     1       16384   lo0
ipv6    fe80::%lo0/64   link#4  U       3       16384   lo0
ipv6    fe80::1%lo0     link#4  UHS     2       16384   lo0

$ pluginctl -4  
{
    "address": null,
    "network": null,
    "bits": null,
    "device": null,
    "interface": null
}

$ pluginctl -s dhcpd status 
dhcpd is running as pid 16072.

$ pluginctl -c dhcp 
Starting DHCPv4 service...done.

Frontend Api

  • you can download the config.xml and add vlans via api
def using_api():
    vlans_api=[
    {'if': 'vtnet1', 'tag': '1', 'pcp': '0', 'proto': None, 'descr': 'vlan1', 'vlanif': 'vlan0.1'},
    {'if': 'vtnet1', 'tag': '2', 'pcp': '0', 'proto': None, 'descr': 'vlan2', 'vlanif': 'vlan0.2'}
    ]
    api_auth={
    "api_key" :'ejl4fIU9yfNk+gaQmPk/rqIa15f1yX1snIKgcIEl2QNoJwhbekraWIE0ANRYceh9hey5IFGzlf3da4yJ',
    "api_secret":'5JVVGoatPbaAA+FozLDQY92/T6sRlmKD1+aRNl/YI8KA9/0TNiTDboLveqvd9FU8wFeDo3D3DY5wrUtF',
    "ssl": True,
    "verify": False
    }    
    helper=Opnsense_Helper(host=host,api_auth=api_auth,filepath=output, verbose=False)
    helper.vlans_api(vlans_api,"add")

config_manager manual usage

  • pull the config.xml from the firewall via ssh
helper.config_manager.get_conf(conf_path)
  • initialize the the Opnsense_Helper-class and parse the config.xml
helper.config_manager.initialize()
  • add the items
helper.config_manager.add_Items("vlans",vlans)
  • save the configuration as xml and copy it back to the firewall

this will also reconfigure your vlans for you, if you have any

helper.config_manager.save(output)
helper.config_manager.put_file(output,conf_path)
helper.config_manager.close_con()

contribute

  • clone, or fork [email protected]:the-pod-shop/opnsense-helper.git
  • build when made changes
  • make sure to use the right user
cd python
python setup.py bdist_wheel \
&& pip install --upgrade . \
&& python3 -m pip install --upgrade build #--force
  • you can also use the build.sh script
  • create pull request

motivation

  • i couldnt find a single repo/collection/terraform provider/api that let me assign and enable lan interfaces
  • i decided to create one mself
  • opnsense api does not let me do it, it just replies with: controller not found
  • but /conf/config.xml has the answer.
  • however for phisical interfaces its the god damn conf.rc
  • my opnsense runs in a vm, so it really doesnt matter for me
  • i just add the interfaces via libvirt and all i need to do is to enable them, given the /conf/config.xml method xml has the answer.