Freeradius и сценарий аутентификации PHP

Я пытаюсь аутентифицировать пользователей freeradius с помощью сценария PHP, но безуспешно. Я часами пытался настроить это правильно, и все потоки, которые я нашел в Google, либо имеют мертвые ссылки, либо устарели ...

radiusd.conf

prefix = /usr
exec_prefix = /usr
sysconfdir = /etc
localstatedir = /var
sbindir = ${exec_prefix}/sbin
logdir = /var/log/freeradius
raddbdir = /etc/freeradius
radacctdir = ${logdir}/radacct

#  Name of the running server
name = freeradius

#  Location of config and logfiles.
confdir = ${raddbdir}
run_dir = ${localstatedir}/run/${name}

# Should likely be ${localstatedir}/lib/radiusd
db_dir = ${raddbdir}

libdir = /usr/lib/freeradius

pidfile = ${run_dir}/${name}.pid

# user/group: The name (or #number) of the user/group to run radiusd as.
user = freerad
group = freerad

#  max_request_time: The maximum time (in seconds) to handle a request.
max_request_time = 30

#  cleanup_delay: The time to wait (in seconds) before cleaning up
#  a reply which was sent to the NAS.
cleanup_delay = 5

#  max_requests: The maximum number of requests which the server keeps
#  track of.  This should be 256 multiplied by the number of clients.
#  e.g. With 4 clients, this number should be 1024.
max_requests = 1024

#  listen: Make the server listen on a particular IP address, and send
#  replies out from that address. This directive is most useful for
#  hosts with multiple IP addresses on one interface.
listen {
    type = auth
    ipaddr = *
    port = 0
}

#  This second "listen" section is for listening on the accounting
#  port, too.
listen {
    ipaddr = *
    port = 0
    type = acct
}

hostname_lookups = no
allow_core_dumps = no
regular_expressions = yes
extended_expressions    = yes

log {
    destination = files
    file = ${logdir}/radius.log
    syslog_facility = daemon
    stripped_names = no
    auth = no
    auth_badpass = no
    auth_goodpass = no
}

checkrad = ${sbindir}/checkrad

security {
    max_attributes = 200
    reject_delay = 1
    status_server = yes
}

proxy_requests  = off

# CLIENTS CONFIGURATION
client 0.0.0.0/0 {
    secret = secret
    shortname = wireless
}

# THREAD POOL CONFIGURATION
thread pool {
    start_servers = 5
    max_servers = 32
    min_spare_servers = 3
    max_spare_servers = 10
    max_requests_per_server = 0
}

# MODULE CONFIGURATION
modules {
    $INCLUDE ${confdir}/modules/
    $INCLUDE eap.conf
}

# Instantiation
instantiate {
    exec
    expr
    expiration
    logintime
}

$INCLUDE policy.conf

$INCLUDE sites-enabled/

modules / exec

exec {
    wait = yes 
    program = "/usr/bin/php -f /usr/local/auth.php %{User-Name} %{User-Password}"
    input_pairs = request 
    output_pairs = reply
    shell_escape = yes
}

sites-available / default

authorize {
    preprocess
    exec
    chap
    suffix
    files
    expiration
    logintime
    pap
}

authenticate {
    Auth-Type PAP {
        pap
    }
    Auth-Type CHAP {
        chap
    }
    eap
}


preacct {
    preprocess
    acct_unique
    suffix
    files
}

accounting {
    detail
    radutmp
    exec
    attr_filter.accounting_response
}

session {
    radutmp
}

post-auth {
    exec
    Post-Auth-Type REJECT {
        attr_filter.access_reject
    }
}

pre-proxy {
}

post-proxy {
}

Хотя я понятия не имею, что поместить в файл пользователей ...