Use passwd for MAC filtering?
Wolfgang Burger
burgerw at immunbio.mpg.de
Mon Apr 28 13:12:37 CEST 2008
Hi,
I`m trying to add a MAC-Filter to my existing FreeRadius deployment.
For some of my users I`m using TLS and want to be able to bind the
certificates to a MAC address.
I`ve tried to use passwd.
In my radiusd.conf
...
passwd maclist {
filename = /etc/raddb/maclist
format = "*User-Name:mac-add"
}
...
mac-add is added in dictionary
...
ATTRIBUTE mac-add 3005 string
...
Then, in sites-enabled/default:
...
authorize {
...
maclist
if ( mac-add != Calling-Station-ID ) {
reject
}
...
maclist (for now):
Mac445:0017F2ECCC75
What I get is this:
rlm_passwd: Added mac-add: '0017F2ECCC75' to config_items
+++[maclist] returns ok
+++? if (mac-add != Calling-Station-ID )
(Attribute mac-add was not found)
So I changed radiusd.conf to:
...
passwd maclist {
filename = /etc/raddb/maclist
format = "*User-Name:~mac-add"
}
...
Result (full log at end of message):
rlm_passwd: Added mac-add: '0017F2ECCC75' to request_items
+++[maclist] returns ok
+++? if (mac-add != Calling-Station-ID )
? Evaluating (mac-add != Calling-Station-ID ) -> TRUE
+++? if (mac-add != Calling-Station-ID ) -> TRUE
+++- entering if (mac-add != Calling-Station-ID )
++++[reject] returns reject
+++- if (mac-add != Calling-Station-ID ) returns reject
Is it even possible to add setup a MAC-Filter this way?
Or is it just some sort of datatype missmatch (" vs ')?
Thank you all
Best regards
Wolfgang Burger <burgerw at immunbio.mpg.de>
mac339:~ system$ sudo radiusd -X
FreeRADIUS Version 2.0.2, for host powerpc-apple-darwin8.11.0, built on
Feb 14 2008 at 15:25:18
Copyright (C) 1999-2008 The FreeRADIUS server project and contributors.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
You may redistribute copies of FreeRADIUS under the terms of the
GNU General Public License.
Starting - reading configuration files ...
including configuration file //etc/raddb/radiusd.conf
including configuration file //etc/raddb/proxy.conf
including configuration file //etc/raddb/clients.conf
including configuration file //etc/raddb/snmp.conf
including configuration file //etc/raddb/eap.conf
including configuration file //etc/raddb/sql.conf
including configuration file //etc/raddb/sql/mysql/dialup.conf
including configuration file //etc/raddb/sql/mysql/counter.conf
including configuration file //etc/raddb/policy.conf
including files in directory //etc/raddb/sites-enabled/
including configuration file //etc/raddb/sites-enabled/default
including dictionary file //etc/raddb/dictionary
main {
prefix = "/"
localstatedir = "//var"
logdir = "//var/log/radius"
libdir = "//lib"
radacctdir = "//var/log/radius/radacct"
hostname_lookups = no
max_request_time = 30
cleanup_delay = 5
max_requests = 1024
allow_core_dumps = no
pidfile = "//var/run/radiusd/radiusd.pid"
checkrad = "//sbin/checkrad"
debug_level = 0
proxy_requests = yes
security {
max_attributes = 200
reject_delay = 1
status_server = yes
}
}
client 192.168.1.24 {
require_message_authenticator = no
secret = "xxx"
shortname = "netgear1"
}
client 192.168.1.132 {
require_message_authenticator = no
secret = "xxx"
shortname = "netgear2"
}
client 192.168.1.133 {
require_message_authenticator = no
secret = "xxx"
shortname = "netgear3"
}
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = "xxx"
nastype = "other"
}
radiusd: #### Loading Realms and Home Servers ####
proxy server {
retry_delay = 5
retry_count = 3
default_fallback = no
dead_time = 120
wake_all_if_all_dead = no
}
home_server localhost {
ipaddr = 127.0.0.1
port = 1812
type = "auth"
secret = "xxx"
response_window = 20
max_outstanding = 65536
zombie_period = 40
status_check = "status-server"
ping_check = "none"
ping_interval = 30
check_interval = 30
num_answers_to_alive = 3
num_pings_to_alive = 3
revive_interval = 120
status_check_timeout = 4
}
home_server_pool my_auth_failover {
type = fail-over
home_server = localhost
}
realm example.com {
auth_pool = my_auth_failover
}
realm LOCAL {
}
radiusd: #### Instantiating modules ####
instantiate {
Module: Linked to module rlm_exec
Module: Instantiating exec
exec {
wait = yes
input_pairs = "request"
shell_escape = yes
}
Module: Linked to module rlm_expr
Module: Instantiating expr
Module: Linked to module rlm_expiration
Module: Instantiating expiration
expiration {
reply-message = "Password Has Expired "
}
Module: Linked to module rlm_logintime
Module: Instantiating logintime
logintime {
reply-message = "You are calling outside your allowed timespan
"
minimum-timeout = 60
}
}
radiusd: #### Loading Virtual Servers ####
server {
modules {
Module: Checking authenticate {...} for more modules to load
Module: Linked to module rlm_pap
Module: Instantiating pap
pap {
encryption_scheme = "auto"
auto_header = no
}
Module: Linked to module rlm_chap
Module: Instantiating chap
Module: Linked to module rlm_mschap
Module: Instantiating mschap
mschap {
use_mppe = yes
require_encryption = no
require_strong = no
with_ntdomain_hack = no
use_open_directory = yes
}
Module: Linked to module rlm_unix
Module: Instantiating unix
unix {
radwtmp = "//var/log/radius/radwtmp"
}
Module: Linked to module rlm_eap
Module: Instantiating eapuser
eap eapuser {
default_eap_type = "ttls"
timer_expire = 60
ignore_unknown_eap_types = no
cisco_accounting_username_bug = no
}
Module: Linked to sub-module rlm_eap_md5
Module: Instantiating eap-md5
Module: Linked to sub-module rlm_eap_leap
Module: Instantiating eap-leap
Module: Linked to sub-module rlm_eap_gtc
Module: Instantiating eap-gtc
gtc {
challenge = "Password: "
auth_type = "PAP"
}
Module: Linked to sub-module rlm_eap_tls
Module: Instantiating eap-tls
tls {
rsa_key_exchange = no
dh_key_exchange = yes
rsa_key_length = 512
dh_key_length = 512
verify_depth = 0
pem_file_type = yes
private_key_file = "//etc/raddb/certs/server.pem"
certificate_file = "//etc/raddb/certs/server.pem"
CA_file = "//etc/raddb/certs/ca.pem"
private_key_password = "xxx"
dh_file = "//etc/raddb/certs/dh"
random_file = "//etc/raddb/certs/random"
fragment_size = 1024
include_length = yes
check_crl = no
cipher_list = "DEFAULT"
}
Module: Linked to sub-module rlm_eap_ttls
Module: Instantiating eap-ttls
ttls {
default_eap_type = "md5"
copy_request_to_tunnel = yes
use_tunneled_reply = no
}
Module: Linked to sub-module rlm_eap_peap
Module: Instantiating eap-peap
peap {
default_eap_type = "mschapv2"
copy_request_to_tunnel = no
use_tunneled_reply = no
proxy_tunneled_request_as_eap = yes
}
Module: Linked to sub-module rlm_eap_mschapv2
Module: Instantiating eap-mschapv2
mschapv2 {
with_ntdomain_hack = no
}
Module: Instantiating eapguest
eap eapguest {
default_eap_type = "ttls"
timer_expire = 60
ignore_unknown_eap_types = no
cisco_accounting_username_bug = no
}
Module: Linked to sub-module rlm_eap_md5
Module: Instantiating eap-md5
Module: Linked to sub-module rlm_eap_leap
Module: Instantiating eap-leap
Module: Linked to sub-module rlm_eap_gtc
Module: Instantiating eap-gtc
gtc {
challenge = "Password: "
auth_type = "PAP"
}
Module: Linked to sub-module rlm_eap_tls
Module: Instantiating eap-tls
tls {
rsa_key_exchange = no
dh_key_exchange = yes
rsa_key_length = 512
dh_key_length = 512
verify_depth = 0
pem_file_type = yes
private_key_file = "//etc/raddb/mpiibcerts/Mac339.pem"
certificate_file = "//etc/raddb/mpiibcerts/Mac339.pem"
CA_file = "//etc/raddb/mpiibcerts/root.pem"
private_key_password = "xxx"
dh_file = "//etc/raddb/mpiibcerts/dh"
random_file = "//etc/raddb/mpiibcerts/random"
fragment_size = 1024
include_length = yes
check_crl = no
cipher_list = "DEFAULT"
make_cert_command = "//etc/raddb/mpiibcerts/bootstrap"
}
Module: Linked to sub-module rlm_eap_ttls
Module: Instantiating eap-ttls
ttls {
default_eap_type = "md5"
copy_request_to_tunnel = yes
use_tunneled_reply = no
}
Module: Linked to sub-module rlm_eap_peap
Module: Instantiating eap-peap
peap {
default_eap_type = "mschapv2"
copy_request_to_tunnel = no
use_tunneled_reply = no
proxy_tunneled_request_as_eap = yes
}
Module: Linked to sub-module rlm_eap_mschapv2
Module: Instantiating eap-mschapv2
mschapv2 {
with_ntdomain_hack = no
}
Module: Checking authorize {...} for more modules to load
Module: Linked to module rlm_preprocess
Module: Instantiating preprocess
preprocess {
huntgroups = "//etc/raddb/huntgroups"
hints = "//etc/raddb/hints"
with_ascend_hack = no
ascend_channels_per_line = 23
with_ntdomain_hack = no
with_specialix_jetstream_hack = no
with_cisco_vsa_hack = no
with_alvarion_vsa_hack = no
}
Module: Linked to module rlm_realm
Module: Instantiating suffix
realm suffix {
format = "suffix"
delimiter = "@"
ignore_default = no
ignore_null = no
}
Module: Linked to module rlm_files
Module: Instantiating files
files {
usersfile = "//etc/raddb/users"
acctusersfile = "//etc/raddb/acct_users"
preproxy_usersfile = "//etc/raddb/preproxy_users"
compat = "no"
}
Module: Linked to module rlm_passwd
Module: Instantiating guestlist
passwd guestlist {
filename = "/Library/WebServer/path/guestlist"
format = "*User-Name:Cleartext-Password::Simultaneous-Use"
delimiter = ":"
ignorenislike = yes
ignoreempty = yes
allowmultiplekeys = no
hashsize = 100
}
rlm_passwd: nfields: 4 keyfield 0(User-Name) listable: no
Module: Instantiating maclist
passwd maclist {
filename = "/etc/raddb/maclist"
format = "*User-Name:~mac-add"
delimiter = ":"
ignorenislike = yes
ignoreempty = yes
allowmultiplekeys = no
hashsize = 100
}
rlm_passwd: nfields: 2 keyfield 0(User-Name) listable: no
Module: Linked to module rlm_always
Module: Instantiating reject
always reject {
rcode = "reject"
simulcount = 0
mpp = no
}
Module: Checking preacct {...} for more modules to load
Module: Linked to module rlm_acct_unique
Module: Instantiating acct_unique
acct_unique {
key = "User-Name, Acct-Session-Id, NAS-IP-Address,
Client-IP-Address, NAS-Port"
}
Module: Checking accounting {...} for more modules to load
Module: Linked to module rlm_detail
Module: Instantiating detail
detail {
detailfile =
"//var/log/radius/radacct/%{Client-IP-Address}/detail-%Y%m%d"
header = "%t"
detailperm = 384
dirperm = 493
locking = no
log_packet_header = no
}
Module: Linked to module rlm_radutmp
Module: Instantiating radutmp
radutmp {
filename = "//var/log/radius/radutmp"
username = "%{User-Name}"
case_sensitive = yes
check_with_nas = yes
perm = 384
callerid = yes
}
Module: Linked to module rlm_attr_filter
Module: Instantiating attr_filter.accounting_response
attr_filter attr_filter.accounting_response {
attrsfile = "//etc/raddb/attrs.accounting_response"
key = "%{User-Name}"
}
Module: Checking session {...} for more modules to load
Module: Checking post-proxy {...} for more modules to load
Module: Instantiating eap
eap {
default_eap_type = "ttls"
timer_expire = 60
ignore_unknown_eap_types = no
cisco_accounting_username_bug = no
}
Module: Linked to sub-module rlm_eap_md5
Module: Instantiating eap-md5
Module: Linked to sub-module rlm_eap_leap
Module: Instantiating eap-leap
Module: Linked to sub-module rlm_eap_gtc
Module: Instantiating eap-gtc
gtc {
challenge = "Password: "
auth_type = "PAP"
}
Module: Linked to sub-module rlm_eap_tls
Module: Instantiating eap-tls
tls {
rsa_key_exchange = no
dh_key_exchange = yes
rsa_key_length = 512
dh_key_length = 512
verify_depth = 0
pem_file_type = yes
private_key_file = "//etc/raddb/certs/server.pem"
certificate_file = "//etc/raddb/certs/server.pem"
CA_file = "//etc/raddb/certs/ca.pem"
private_key_password = "xxx"
dh_file = "//etc/raddb/certs/dh"
random_file = "//etc/raddb/certs/random"
fragment_size = 1024
include_length = yes
check_crl = no
cipher_list = "DEFAULT"
}
Module: Linked to sub-module rlm_eap_ttls
Module: Instantiating eap-ttls
ttls {
default_eap_type = "md5"
copy_request_to_tunnel = yes
use_tunneled_reply = no
}
Module: Linked to sub-module rlm_eap_mschapv2
Module: Instantiating eap-mschapv2
mschapv2 {
with_ntdomain_hack = no
}
Module: Checking post-auth {...} for more modules to load
Module: Instantiating attr_filter.access_reject
attr_filter attr_filter.access_reject {
attrsfile = "//etc/raddb/attrs.access_reject"
key = "%{User-Name}"
}
}
}
radiusd: #### Opening IP addresses and Ports ####
listen {
type = "auth"
ipaddr = *
port = 0
}
listen {
type = "acct"
ipaddr = *
port = 0
}
Listening on authentication address * port 1812
Listening on accounting address * port 1813
Listening on proxy address * port 1814
Ready to process requests.
rad_recv: Access-Request packet from host 192.168.1.24 port 1034,
id=52, length=177
Message-Authenticator = 0xa5734a24826bc1b4f6f1cd74965941a1
Service-Type = Framed-User
User-Name = "Mac445"
Framed-MTU = 1488
Called-Station-Id = "00184DFCC7B8:MPIIB-Users"
Calling-Station-Id = "0017F2ECCC75"
NAS-Identifier = "netgear1"
NAS-Port-Type = Wireless-802.11
Connect-Info = "CONNECT 54Mbps 802.11g"
EAP-Message = 0x0200000b014d6163343435
NAS-IP-Address = 192.168.1.24
NAS-Port = 1
NAS-Port-Id = "STA port # 1"
+- entering group authorize
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
rlm_realm: No '@' in User-Name = "Mac445", looking up realm NULL
rlm_realm: No such realm "NULL"
++[suffix] returns noop
++? if (Called-Station-ID =~ /:MPIIB-Guests$/)
? Evaluating (Called-Station-ID =~ /:MPIIB-Guests$/) -> FALSE
++? if (Called-Station-ID =~ /:MPIIB-Guests$/) -> FALSE
++? if (Called-Station-ID =~ /:MPIIB-Users$/)
? Evaluating (Called-Station-ID =~ /:MPIIB-Users$/) -> TRUE
++? if (Called-Station-ID =~ /:MPIIB-Users$/) -> TRUE
++- entering if (Called-Station-ID =~ /:MPIIB-Users$/)
rlm_eap: EAP packet type response id 0 length 11
rlm_eap: No EAP Start, assuming it's an on-going EAP conversation
+++[eapuser] returns updated
expand: %{Called-Station-Id} -> 00184DFCC7B8:MPIIB-Users
+++[files] returns noop
rlm_passwd: Added mac-add: '0017F2ECCC75' to request_items
+++[maclist] returns ok
+++? if (mac-add != Calling-Station-ID )
? Evaluating (mac-add != Calling-Station-ID ) -> TRUE
+++? if (mac-add != Calling-Station-ID ) -> TRUE
+++- entering if (mac-add != Calling-Station-ID )
++++[reject] returns reject
+++- if (mac-add != Calling-Station-ID ) returns reject
++- if (Called-Station-ID =~ /:MPIIB-Users$/) returns reject
Invalid user: [Mac445/<via Auth-Type = EAP>] (from client netgear1 port
1 cli 0017F2ECCC75)
Found Post-Auth-Type Reject
+- entering group REJECT
expand: %{User-Name} -> Mac445
attr_filter: Matched entry DEFAULT at line 11
++[attr_filter.access_reject] returns updated
Delaying reject of request 1 for 1 seconds
Going to the next request
Waking up in 0.9 seconds.
rad_recv: Access-Request packet from host 192.168.1.24 port 1034,
id=52, length=177
Waiting to send Access-Reject to client netgear1 port 1034 - ID: 52
Sending delayed reject for request 1
Sending Access-Reject of id 52 to 192.168.1.24 port 1034
Waking up in 4.9 seconds.
Cleaning up request 1 ID 52 with timestamp +8
Ready to process requests.
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