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tesserarius

v0.3.2

Published

Basic iptables manipulation in nodejs

Downloads

33

Readme

tesserarius

About

Build Status

Build Status

Description

Basic iptables manipulation in nodejs.

Disclaimer

For now, tesserarius shells out when manipulating iptables rules. This will change in the future.

Author

ContainerShip Developers - [email protected]

Getting Started

Installation

npm install tesserarius --save

Examples

####Instantiation Instantiate a new tesserarius object.

const Tesserarius = require("tesserarius");
const tesserarius = new Tesserarius();

Creating a Chain

Creates a new chain with the given name

tesserarius.create_chain('MyChain', (err) => {
    if(err) {
        throw err;
    }
});

Set Chain Policy

Sets the policy of a given chain

tesserarius.set_policy('MyChain', 'DROP', (err) => {
    if(err) {
        throw err;
    }
});

Add Rule to Chain

Adds a rule with the given specifications to the chain if it does not already exist

const rule = {
    interface: 'eth0',
    policy: 'ACCEPT',
    protocol: 'tcp',
    destination_port: 22,
    source: '10.0.10.0/24'
}

tesserarius.add_rule('MyChain', rule, (err) => {
    if(err) {
        throw err;
    }
});

Remove Rule from Chain

Removes a rule with the given specifications from the chain if it exists

const rule = {
    interface: 'eth0',
    policy: 'ACCEPT',
    protocol: 'tcp',
    destination_port: 22,
    source: '10.0.10.0/24'
}

tesserarius.delete_rule('MyChain', rule, (err) => {
    if(err) {
        throw err;
    }
});

Set Chain Rules

Resets the chain rules to the given rules

const rules = [
    {
        interface: 'eth0',
        policy: 'ACCEPT',
        protocol: 'tcp',
        destination_port: 22,
        source: '10.0.10.0/24'
    },
    {
        interface: 'eth0',
        policy: 'ACCEPT',
        protocol: 'tcp',
        destination_port: 22,
        source: '10.0.12.0/24'
    }
]

tesserarius.set_rules('MyChain', rules, (err) => {
    if(err) {
        throw err;
    }
});

Get Chain Rules

Returns an array of the given chain's rules

tesserarius.get_rules('MyChain', (err, rules) => {
    if(err) {
        throw err;
    }

    console.log(rules);
});

Flush

Flushes a given chain, or all chains if chain is omitted

tesserarius.flush('MyChain', (err) => {
    if(err) {
        throw err;
    }
});

Contributing

Pull requests and issues are encouraged!