Help with machine authentication
Eldred, Bob
Bob.Eldred at iberdrolaren.com
Thu Apr 21 21:08:07 CEST 2011
Hello there,
I've spent the last couple days combing the interwebs, hoping to find
the (probably stupid and minor) config issue with a FreeRADIUS server
I've been asked to implement. I've successfully enabled and tested user
authentication as a first step, but the next step is to move from that
to machine authentication. I'll tackle proxying after I can make this
work (hopefully without having to bother the list).
Environment:
CentOS (dmesg gives: Linux version 2.6.18-194.el5
(mockbuild at builder16.centos.org) (gcc version 4.1.2 20080704 (Red Hat
4.1.2-48)) #1 SMP Fri Apr 2 14:58:35 EDT 2010)
Samba v 3.0.33-3.29.el5_5.1
FreeRADIUS Version 2.1.7, for host i686-redhat-linux-gnu, built on Mar
31 2010 at 00:25:31
Problem:
After configuring a Windows XP SP3 supplicant for machine authentication
(which is stupidly complex, given the required registry hacks to make it
work), I get this in the debug output:
++[mschap] returns noop
[ntdomain] No '\' in User-Name = "host/C776669.ppmenergy.us", looking up
realm NULL
[ntdomain] No such realm "NULL"
++[ntdomain] returns noop
Now, I can clearly see that there *is* no '\' in the hostname there, nor
should there be. But everything I've found on the web indicates that
with the version of FreeRADIUS and Samba I have, %{mschap:User-Name}
should be rewritten as C776669$. Getting the domain of the thing will
be another challenge of its own, I imagine.
Thank you in advance, for any help you can offer.
-Bob
Following is the complete output of the server startup, and then the
output of a request:
FreeRADIUS Version 2.1.7, for host i686-redhat-linux-gnu, built on Mar
31 2010 at 00:25:31
Copyright (C) 1999-2009 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 v2.
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 files in directory /etc/raddb/modules/
including configuration file /etc/raddb/modules/inner-eap
including configuration file /etc/raddb/modules/cui
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/pap
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/wimax
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/detail
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/perl
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/ntlm_auth
including configuration file /etc/raddb/modules/smsotp
including configuration file /etc/raddb/modules/linelog
including configuration file
/etc/raddb/modules/sqlcounter_expire_on_login
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/radutmp
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/preprocess
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/otp
including configuration file /etc/raddb/modules/exec
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/eap.conf
including configuration file /etc/raddb/policy.conf
including files in directory /etc/raddb/sites-enabled/
including configuration file /etc/raddb/sites-enabled/inner-tunnel
including configuration file /etc/raddb/sites-enabled/default
including configuration file /etc/raddb/sites-enabled/control-socket
group = radiusd
user = radiusd
including dictionary file /etc/raddb/dictionary
main {
prefix = "/usr"
localstatedir = "/var"
logdir = "/var/log/radius"
libdir = "/usr/lib/freeradius"
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 = "/usr/sbin/checkrad"
debug_level = 0
proxy_requests = no
log {
stripped_names = no
auth = no
auth_badpass = no
auth_goodpass = no
}
security {
max_attributes = 200
reject_delay = 1
status_server = yes
}
}
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 = <secret>
response_window = 20
max_outstanding = 65536
require_message_authenticator = no
zombie_period = 40
status_check = "status-server"
ping_interval = 30
check_interval = 30
num_answers_to_alive = 3
num_pings_to_alive = 3
revive_interval = 120
status_check_timeout = 4
irt = 2
mrt = 16
mrc = 5
mrd = 30
}
home_server_pool my_auth_failover {
type = fail-over
home_server = localhost
}
realm example.com {
auth_pool = my_auth_failover
}
realm PPMENERGY.US {
}
realm PPMENERGY {
}
realm LOCAL {
}
radiusd: #### Loading Clients ####
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = <secret>
nastype = "other"
}
client 10.56.160.5/32 {
require_message_authenticator = no
secret = <secret>
shortname = "coloPrimary"
nastype = "cisco"
}
client 10.56.160.6/32 {
require_message_authenticator = no
secret = <secret>
shortname = "coloBackup"
nastype = "cisco"
}
radiusd: #### Instantiating modules ####
instantiate {
Module: Linked to module rlm_exec
Module: Instantiating exec
exec {
wait = no
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 inner-tunnel {
modules {
Module: Checking authenticate {...} for more modules to load
Module: Instantiating ntlm_auth
exec ntlm_auth {
wait = yes
program = "/usr/bin/ntlm_auth --request-nt-key
--username=%{mschap:User-Name} --challenge=%{mschap:Challenge:-00}
--nt-response=%{mschap:NT-Response:-00}
--domain=%{mschap:NT-Domain:-00}"
input_pairs = "request"
shell_escape = yes
}
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 = yes
require_strong = yes
with_ntdomain_hack = yes
ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key
--username=%{mschap:User-Name} --challenge=%{mschap:Challenge:-00}
--nt-response=%{mschap:NT-Response:-00}
--domain=%{mschap:NT-Domain:-00}"
}
Module: Linked to module rlm_unix
Module: Instantiating unix
unix {
radwtmp = "/var/log/radius/radwtmp"
}
Module: Linked to module rlm_eap
Module: Instantiating eap
eap {
default_eap_type = "peap"
timer_expire = 60
ignore_unknown_eap_types = no
cisco_accounting_username_bug = no
max_sessions = 2048
}
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 = "whatever"
dh_file = "/etc/raddb/certs/dh"
random_file = "/dev/urandom"
fragment_size = 1024
include_length = yes
check_crl = no
cipher_list = "DEFAULT"
make_cert_command = "/etc/raddb/certs/bootstrap"
cache {
enable = no
lifetime = 24
max_entries = 255
}
}
Module: Linked to sub-module rlm_eap_ttls
Module: Instantiating eap-ttls
ttls {
default_eap_type = "md5"
copy_request_to_tunnel = no
use_tunneled_reply = yes
virtual_server = "inner-tunnel"
include_length = yes
}
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
virtual_server = "inner-tunnel"
}
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_realm
Module: Instantiating ntdomain
realm ntdomain {
format = "prefix"
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: Checking session {...} for more modules to load
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: Checking post-proxy {...} for more modules to load
Module: Checking post-auth {...} for more modules to load
Module: Linked to module rlm_attr_filter
Module: Instantiating attr_filter.access_reject
attr_filter attr_filter.access_reject {
attrsfile = "/etc/raddb/attrs.access_reject"
key = "%{User-Name}"
}
} # modules
} # server
server {
modules {
Module: Checking authenticate {...} for more modules to load
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: 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: 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: Checking post-auth {...} for more modules to load
} # modules
} # server
radiusd: #### Opening IP addresses and Ports ####
listen {
type = "auth"
ipaddr = *
port = 0
}
listen {
type = "acct"
ipaddr = *
port = 0
}
listen {
type = "control"
listen {
socket = "/var/run/radiusd/radiusd.sock"
}
}
Listening on authentication address * port 1812
Listening on accounting address * port 1813
Listening on command file /var/run/radiusd/radiusd.sock
Ready to process requests.
--------------------------------------------
Request output:
rad_recv: Access-Request packet from host 10.56.160.5 port 32768,
id=219, length=214
User-Name = "host/C776669.ppmenergy.us"
Calling-Station-Id = "00-1b-77-88-ae-3e"
Called-Station-Id = "8c-b6-4f-a6-36-80:IBD-Global"
NAS-Port = 13
NAS-IP-Address = 10.56.160.5
NAS-Identifier = "POR-WAPCTL-01"
Airespace-Wlan-Id = 1
Service-Type = Framed-User
Framed-MTU = 1300
NAS-Port-Type = Wireless-802.11
Tunnel-Type:0 = VLAN
Tunnel-Medium-Type:0 = IEEE-802
Tunnel-Private-Group-Id:0 = "209"
EAP-Message = 0x020600061900
State = 0x1c7725f51f713c6d6a5dce719626f316
Message-Authenticator = 0xf118377d72bb899a7ff3fa3525355301
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[ntdomain] No '\' in User-Name = "host/C776669.ppmenergy.us", looking up
realm NULL
[ntdomain] No such realm "NULL"
++[ntdomain] returns noop
[eap] EAP packet type response id 6 length 6
[eap] Continuing tunnel setup.
++[eap] returns ok
Found Auth-Type = EAP
+- entering group authenticate {...}
[eap] Request found, released from the list
[eap] EAP/peap
[eap] processing type peap
[peap] processing EAP-TLS
[peap] Received TLS ACK
[peap] ACK handshake fragment handler
[peap] eaptls_verify returned 1
[peap] eaptls_process returned 13
[peap] EAPTLS_HANDLED
++[eap] returns handled
Sending Access-Challenge of id 219 to 10.56.160.5 port 32768
EAP-Message = 0x010700061900
Message-Authenticator = 0x00000000000000000000000000000000
State = 0x1c7725f518703c6d6a5dce719626f316
Finished request 14.
Going to the next request
Waking up in 4.9 seconds.
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