WifiDog-ng(中文)

Next generation WifiDog

WifiDog-ng is a very efficient captive portal solution for wireless router which with embedded linux(LEDE/Openwrt) system.

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Features

Use epoll - Based on libubox: Single threaded, Fully asynchronous, No blocking operation at all
Writing kernel module to implement authentication management instead of using iptables to create firewall rules
Support HTTPS: OpenSSL, mbedtls and CyaSSl(wolfssl)
Remote configuration(With the help of rtty)
Code structure is concise and understandable

Dependencies

Install on OpenWrt

opkg update
opkg list | grep wifidog-ng
opkg install wifidog-ng-nossl

If the install command fails, you can compile it yourself.

UCI Config options

Section gateway

Name	Type	Required	Default	Description
enabled	bool	no	0	Whether to enable wifidog
id	string	no		Gateway id. If not set, the mac address of the ifname will be used
ifname	interface	no	br-lan	Interface to listen by wifidog
port	port number	no	2060	port to listen by wifidog
ssl_port	port number	no	8443	ssl port to listen by wifidog
ssid	ssid	no		Used for WeChat
checkinterval	seconds	no	30	How many seconds should we wait between timeout checks. This is also how often the gateway will ping the auth server and how often it will update the traffic counters on the auth server.
temppass_time	seconds	no	30	Temporary pass time
client_timeout	seconds	no	5	Set this to the desired of number of CheckInterval of inactivity before a client is logged out. The timeout will be INTERVAL * TIMEOUT

Section authserver

Name	Required	Default
host	yes	no
port	no	80
path	no	/wifidog
login_path	no	login
portal_path	no	portal
msg_path	no	gw_message.php
ping_path	no	ping
auth_path	no	auth

Section popularserver

Name	Type	Required	Default
server	list	no	`www.baidu.com www.qq.com`

Section whitelist

Name	Type	Description
domain	list	Can be a domain or ipaddr
mac	list	A macaddr

Protocol

Gateway heartbeating (Ping Protocol)

http://authserver/wifidog/ping?gw_id=xx&sys_uptime=xx&sys_memfree=xx&sys_load=xx&wifidog_uptime=xx

To this the auth server is expected to respond with an http message containing the word "Pong".

Login

http://authserver/wifidog/login?gw_address=xx&gw_port=xx&gw_id=xx&ip=xx&mac=xx&ssid=xx&url=xx

Auth

http://gw_address:gw_port/wifidog/auth?token=xx

Auth confirm

http://authserver/wifidog/auth?stage=login&ip=xx&max=xx&token=xx&incoming=xx&outgoing=xx

The response of the auth server should be "Auth: 1" or "Auth: 0"

Counters (POST)

http://authserver/wifidog/auth/?stage=counters&gw_id=xx

{
    "counters":[{
        "ip": "192.168.1.201",
        "mac": "xx:xx:xx:xx:xx:xx",
        "token": "eb6d8d7f5ad6f35553a40f66cd2bff70",
        "incoming": 4916,
        "outgoing": 20408,
        "uptime": 23223
    }, {
        "ip": "192.168.1.202",
        "mac": "xx:xx:xx:xx:xx:xx",
        "token": "eb6d8d7f5ad6f35553a40f66cd2bff70",
        "incoming": 4916,
        "outgoing": 20408,
        "uptime": 23223
    }]
}

The response of the server should be:

{
    "resp":[{
        "mac": "0c:1d:ff:c4:db:fc",
        "auth": 1
    }, {
        "mac": "0c:1d:cf:c4:db:fc",
        "auth": 0
    }]
}

Temporary pass

http://gw_address:gw_port/wifidog/temppass?script=startWeChatAuth();

Test Server

Remote configuration(First install rtty)

wifidog-ng provides the UBUS configuration interface and then remotely configuring the wifidog-ng with the help of the remote execution command of the rtty

# ubus -v list wifidog-ng
'wifidog-ng' @5903037c
    "term":{"action":"String","mac":"String"}
    "whitelist":{"action":"String","domain":"String","mac":"String"}

Allow client

ubus call wifidog-ng term '{"action":"add", "mac":"11:22:33:44:55:66"}'

Kick off client

ubus call wifidog-ng term '{"action":"del", "mac":"11:22:33:44:55:66"}'

Add domain whitelist

ubus call wifidog-ng whitelist '{"action":"add", "domain":"qq.com"}'

Delete domain whitelist

ubus call wifidog-ng whitelist '{"action":"del", "domain":"qq.com"}'

Add macaddr whitelist

ubus call wifidog-ng whitelist '{"action":"add", "mac":"11:22:33:44:55:66"}'

Delete macaddr whitelist

ubus call wifidog-ng whitelist '{"action":"del", "mac":"11:22:33:44:55:66"}'

Remote configuration example

#!/bin/sh

host="your-rtty-server.com"
port=5912
devid="test"
username="root"
password="123456"
action="add"
domain="www.163.com"

params="[\"call\", \"wifidog-ng\", \"whitelist\", \"{\\\"action\\\":\\\"$action\\\", \\\"domain\\\":\\\"$domain\\\"}\"]"

data="{\"devid\":\"$devid\",\"username\":\"$username\",\"password\":\"$password\",\"cmd\":\"ubus\",\"params\":$params}"

echo $data
curl -k "https://$host:$port/cmd" -d "$data"

Contributing

If you would like to help making wifidog-ng better, see the CONTRIBUTING.md file.

QQ group: 153530783

If the project is helpful to you, please do not hesitate to star. Thank you!

xiaohesen/wifidog-ng