FreeRadius Rest

Freeradius REST API is configuration to make Freeradius talk to PHPNuxBill via HTTP Connection, configuration is more simple.

With Freeradius REST, it will use current PHPNuxBill Core, and you don't need IP Public for Mikrotik.

For now is only support PAP Autentication, i am still working with CHAP

Installing freeradius

apt-get -y install freeradius freeradius-rest

edit clients.conf

nano /etc/freeradius/3.0/clients.conf

Add your Mikrotik IP or your Public IP, this is example, everytime you add/edit Client, restart freeradius

client myRouterA {
	ipaddr		= 10.0.1.0/24
	secret		= verysecret
}

client myRouterB {
	ipaddr		= 10.0.2.0/24
	secret		= secretvery
}

Create rest Configuration

nano /etc/freeradius/3.0/mods-enabled/rest

use this configuration, change phpnuxbill.domain with your domain

rest {
    tls {
        # ca_file = ${certdir}/ca.pem
		# ca_info_file = ${certdir}/cacert_bundle.pem
		# ca_path = ${certdir}
        check_cert = no
        check_cert_cn = no
    }
	connect_uri = "https://phpnuxbill.domain/radius.php"

	authenticate {
		uri = "${..connect_uri}?action=authenticate"
        method = 'post'
        body = 'post'
        data = "username=%{urlquote:%{User-Name}}&password=%{urlquote:%{User-Password}}&nasid=%{urlquote:%{NAS-Identifier}}&CHAPchallenge=%{urlquote:%{CHAP-Challenge}}&CHAPassword=%{urlquote:%{CHAP-Password}}&realm=%{urlquote:%{Mikrotik-Realm}}&macAddr=%{urlquote:%{Calling-Station-Id}}&nasip=%{urlquote:%{NAS-IP-Address}}"
	    tls = ${..tls}
	}

    authorize {
            uri = "${..connect_uri}?action=authorize"
            method = 'post'
            body = 'post'
            data = "username=%{urlquote:%{User-Name}}&password=%{urlquote:%{User-Password}}&nasid=%{urlquote:%{NAS-Identifier}}&CHAPchallenge=%{urlquote:%{CHAP-Challenge}}&CHAPassword=%{urlquote:%{CHAP-Password}}&realm=%{urlquote:%{Mikrotik-Realm}}&macAddr=%{urlquote:%{Calling-Station-Id}}&nasip=%{urlquote:%{NAS-IP-Address}}"
	    tls = ${..tls}
    }

	accounting {
		uri = "${..connect_uri}?action=accounting"
		method = 'post'
		body = 'post'
        data = "username=%{urlquote:%{User-Name}}&nasIpAddress=%{urlquote:%{NAS-IP-Address}}&realm=%{urlquote:%{Mikrotik-Realm}}&nasid=%{urlquote:%{NAS-Identifier}}\
&acctSessionId=%{urlquote:%{Acct-Session-Id}}&macAddr=%{urlquote:%{Calling-Station-Id}}&acctSessionTime=%{urlquote:%{Acct-Session-Time}}\
&acctInputOctets=%{urlquote:%{Acct-Input-Octets}}&acctOutputOctets=%{urlquote:%{Acct-Output-Octets}}\
&acctInputGigawords=%{urlquote:%{Acct-Input-Gigawords}}&acctOutputGigawords=%{urlquote:%{Acct-Output-Gigawords}}\
&acctInputPackets=%{urlquote:%{Acct-Input-Packets}}&acctOutputPackets=%{urlquote:%{Acct-Output-Packets}}\
&nasPortId=%{urlquote:%{NAS-Port-Id}}&framedIPAddress=%{urlquote:%{Framed-IP-Address}}\
&sessionTimeout=%{urlquote:%{Session-Timeout}}&framedIPNetmask=%{urlquote:%{Framed-IP-Netmask}}\
&acctStatusType=%{urlquote:%{Acct-Status-Type}}&nasPortType=%{urlquote:%{NAS-Port-Type}}"
		tls = ${..tls}
	}

    post-auth {
        uri = "${..connect_uri}?action=post-auth"
        method = 'post'
        body = 'post'
        data = "username=%{urlquote:%{User-Name}}"
		tls = ${..tls}
    }

	pool {
		start = ${thread[pool].start_servers}
		min = ${thread[pool].min_spare_servers}
		max = ${thread[pool].max_servers}
		spare = ${thread[pool].max_spare_servers}
		uses = 0
		retry_delay = 30
		lifetime = 0
		idle_timeout = 60
	}
}

edit sites

nano /etc/freeradius/3.0/sites-enabled/default 

Configure just like this, don't delete others

authorize {
#   filter_username
#	filter_password
#	preprocess
#	operator-name
#	cui
#	auth_log
	rest
    if (ok) {
        update control {
            Auth-Type := rest
        }
    }

    ....
}

authenticate {
    Auth-Type rest {
        rest {
            updated = 1
        }
        if (updated) {
            ok
        }
    }
	Auth-Type rest {
		rest
	}

    ....
}

accounting {
	detail
	rest

    ....
}

session {
	radutmp
    
    ....
}

post-auth {
	if (reply:Group-Name) {
        update control {
            &Group := "%{reply:Group-Name}"
        }
    }
    if (reply:Mikrotik-Rate-Limit) {
        update reply {
            Mikrotik-Rate-Limit := "%{reply:Mikrotik-Rate-Limit}"
        }
    }
    if (reply:Expiration) {
        update reply {
            Expiration := "%{reply:Expiration}"
        }
    }
	update {
		&reply: += &session-state:
	}
}

restart services

systemctl restart freeradius.service

DEBUG

To check if someting wrong, stop freeradius

systemctl stop freeradius.service

Activate log in Mikrotik

/system logging add topics=radius,debug action=memory

run radius just like this

freeradius -X

then try to login

Example configuration at Mikrotik

make timeout to 3000, it will show any error from freeradius when login