Bird-lg-go

An alternative implementation for bird-lg written in Go. Both frontend and backend (proxy) are implemented, and can work with either the original Python implementation or the Go implementation.

The code on master branch no longer support BIRDv1. Branch "bird1" is the last version that supports BIRDv1.

Frontend

The frontend directory contains the code for the web frontend, where users see BGP states, do traceroutes and whois, etc. It's a replacement for "lg.py" in original bird-lg project.

Features implemented:

• Show peering status (show protocol command)
• Query route (show route for ..., show route where net ~ [ ... ])
• Whois and traceroute
• Work with both Python proxy (lgproxy.py) and Go proxy (proxy dir of this project)
• Visualize AS paths as picture (bgpmap feature)

Usage: all configuration is done via commandline parameters or environment variables, no config file.

Parameter	Environment Variable	Description
--servers	BIRDLG_SERVERS	server name prefixes, separated by comma
--domain	BIRDLG_DOMAIN	server name domain suffixes
--listen	BIRDLG_LISTEN	address bird-lg is listening on (default ":5000")
--proxy-port	BIRDLG_PROXY_PORT	port bird-lgproxy is running on (default 8000)
--whois	BIRDLG_WHOIS	whois server for queries (default "whois.verisign-grs.com")
--dns-interface	BIRDLG_DNS_INTERFACE	dns zone to query ASN information (default "asn.cymru.com")
--title-brand	BIRDLG_TITLE_BRAND	prefix of page titles in browser tabs (default "Bird-lg Go")
--navbar-brand	BIRDLG_NAVBAR_BRAND	brand to show in the navigation bar (default "Bird-lg Go")
--timeout	BIRDLG_TIMEOUT	maximum time allowed for HTTP requests, in milliseconds (default 1000)

Example: the following command starts the frontend with 2 BIRD nodes, with domain name "gigsgigscloud.dn42.lantian.pub" and "hostdare.dn42.lantian.pub", and proxies are running on port 8000 on both nodes.

./frontend --servers=gigsgigscloud,hostdare --domain=dn42.lantian.pub --proxy-port=8000

Example: the following docker-compose.yml entry does the same as above, but by starting a Docker container:

services:
  bird-lg:
    image: xddxdd/bird-lg-go
    container_name: bird-lg
    restart: always
    environment:
      - BIRDLG_SERVERS=gigsgigscloud,hostdare
      - BIRDLG_DOMAIN=dn42.lantian.pub
    ports:
      - "5000:5000"

Demo: https://lg.lantian.pub

Proxy

The proxy directory contains the code for the "proxy" for bird commands and traceroutes. It's a replacement for "lgproxy.py" in original bird-lg project.

Features implemented:

• Sending queries to BIRD
• Sending "restrict" command to BIRD to prevent unauthorized changes
• Establish new peerings with configuration boilerplates (experimental, use at your own risk)
• Executing traceroute command on Linux, FreeBSD and OpenBSD
• Source IP restriction

Usage:

Parameter	Environment Variable	Description
--allowed	ALLOWED_IPS	IPs allowed to access this proxy, separated by commas. Don't set to allow all IPs. (default "")
--bird	BIRD_SOCKET	socket file for bird, set either in parameter or environment variable BIRD_SOCKET (default "/var/run/bird/bird.ctl")
--listen	BIRDLG_LISTEN	listen address, set either in parameter or environment variable BIRDLG_LISTEN (default ":8000")
--peering	BIRDLG_PEERING	file for peering form parameters (disabled by default)
--templates	BIRDLG_TEMPLATES	directory for peering config boilerplates (default "./templates")

Example: start proxy with default configuration, should work "out of the box" on Debian 9 with BIRDv1:

./proxy

Example: start proxy with custom bird socket location:

./proxy --bird /run/bird.ctl

Example: the following docker-compose.yml entry does the same as above, but by starting a Docker container:

bird-lgproxy:
  image: xddxdd/bird-lgproxy-go
  container_name: bird-lgproxy
  restart: always
  volumes:
    - "/run/bird.ctl:/var/run/bird/bird.ctl"
  ports:
    - "192.168.0.1:8000:8000"

You can use source IP restriction to increase security. You should also bind the proxy to a specific interface and use an external firewall/iptables for added security.

Credits

• Everyone who contributed to this project (see Contributors section on the right)
• Mehdi Abaakouk for creating the original bird-lg project
• Bootstrap as web UI framework

License

GPL 3.0