Restricting certain users access to certain NAS devices
Whitmarsh Mark (Leeds Teaching Hospitals NHS Trust)
mark.whitmarsh at nhs.net
Mon Jul 5 16:23:55 CEST 2010
Hi Alan,
Thanks for the simplifications - I've put those in.
I have done lots more reading and testing and found that any attribute I check for in a group file which has type ipaddr fails. I cannot see why this is.
When debug displays the attributes and their values there are no quotes around ipaddr type attributes - I don't know if this is relevant. eg:
User-Name = "whitmarm"
User-Password = "*"
NAS-IP-Address = xxx.xxx.225.59
Calling-Station-Id = "xxx.xxx.104.10"
The full debug output is below but the section where freeradius processes the groups is:
Login OK: [whitmarm] (from client Anyone port 0 cli xxx.xxx.104.10)
+- entering group post-auth {...}
[user_group] Added User_Group_Name: 'path_group' to request_items
++[user_group] returns ok
++[nas_group] returns notfound
++[exec] returns noop
nas_group always returns notfound if I use NAS-IP-Address, Framed-IP-Address, Framed-IP-Netmask or Login-IP-Host (all type ipaddr) but works with other attributes like Calling-Station-ID.
Full debug, switchgroup file and nas_group module of failure:
freerad2:~ # radiusd -X
FreeRADIUS Version 2.1.6, for host i686-pc-linux-gnu, built on Nov 20 2009 at 09:43:24
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/pap
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/exec
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/preprocess
including configuration file /etc/raddb/modules/ntlm_auth
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/linelog
including configuration file /etc/raddb/modules/radutmp
including configuration file /etc/raddb/modules/smsotp
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/ldap
including configuration file /etc/raddb/modules/nas_group
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/user_group
including configuration file /etc/raddb/modules/sqlcounter_expire_on_login
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/wimax
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/otp
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/krb5
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/modules/perl
including configuration file /etc/raddb/modules/detail
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/control-socket
including configuration file /etc/raddb/sites-enabled/inner-tunnel
including configuration file /etc/raddb/sites-enabled/default
group = radiusd
user = radiusd
including dictionary file /etc/raddb/dictionary
main {
prefix = "/usr"
localstatedir = "/var"
logdir = "/home/radlogs"
libdir = "/usr/lib/freeradius"
radacctdir = "/home/radlogs/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 = yes
log {
stripped_names = no
auth = yes
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 = "testing123"
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 LOCAL {
}
radiusd: #### Loading Clients ####
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = "*"
nastype = "other"
}
client xxx.xxx.107.40 {
require_message_authenticator = no
secret = "*"
shortname = "self"
}
client xxx.xxx.0.0/16 {
require_message_authenticator = no
secret = "*"
shortname = "Anyone"
nastype = "pc"
}
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: 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
}
Module: Linked to module rlm_unix
Module: Instantiating unix
unix {
radwtmp = "/home/radlogs/radwtmp"
}
Module: Linked to module rlm_eap
Module: Instantiating eap
eap {
default_eap_type = "md5"
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 = "/etc/raddb/certs/random"
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 = no
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: Instantiating ntlm_auth
exec ntlm_auth {
wait = yes
program = "/usr/bin/ntlm_auth --request-nt-key --domain=xxx --username=%{mschap:User-Name} --password=%{User-Password}"
input_pairs = "request"
shell_escape = yes
}
Module: Checking authorize {...} for more modules to load
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: Checking session {...} for more modules to load
Module: Linked to module rlm_radutmp
Module: Instantiating radutmp
radutmp {
filename = "/home/radlogs/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 = "/home/radlogs/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
Module: Linked to module rlm_passwd
Module: Instantiating user_group
passwd user_group {
filename = "/etc/raddb/usergroup"
format = "~User_Group_Name:*,User-Name"
delimiter = ":"
ignorenislike = no
ignoreempty = yes
allowmultiplekeys = yes
hashsize = 50
}
rlm_passwd: nfields: 2 keyfield 1(User-Name) listable: yes
Module: Instantiating nas_group
passwd nas_group {
filename = "/etc/raddb/switchgroup"
format = "~Nas_Group_Name:*,NAS-IP-Address"
delimiter = ":"
ignorenislike = no
ignoreempty = no
allowmultiplekeys = yes
hashsize = 50
}
rlm_passwd: nfields: 2 keyfield 1(NAS-IP-Address) listable: yes
Module: Linked to module rlm_always
Module: Instantiating reject
always reject {
rcode = "reject"
simulcount = 0
mpp = no
}
} # modules
} # server
radiusd: #### Opening IP addresses and Ports ####
listen {
type = "auth"
ipaddr = xxx.xxx.107.40
port = 0
}
listen {
type = "acct"
ipaddr = *
port = 0
}
listen {
type = "control"
listen {
socket = "/var/run/radiusd/radiusd.sock"
}
}
Listening on authentication address xxx.xxx.107.40 port 1812
Listening on accounting address * port 1813
Listening on command file /var/run/radiusd/radiusd.sock
Listening on proxy address xxx.xxx.107.40 port 1814
Ready to process requests.
rad_recv: Access-Request packet from host xxx.xxx.104.10 port 58483, id=21, length=70
User-Name = "whitmarm"
User-Password = "*"
NAS-IP-Address = xxx.xxx.225.59
Calling-Station-Id = "xxx.xxx.104.10"
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "whitmarm", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
[eap] No EAP-Message, not doing EAP
++[eap] returns noop
++[unix] returns notfound
[files] users: Matched entry whitmarm at line 7
++[files] returns ok
++[expiration] returns noop
++[logintime] returns noop
[pap] WARNING! No "known good" password found for the user. Authentication may fail because of this.
++[pap] returns noop
Found Auth-Type = ntlm_auth
+- entering group authenticate {...}
[ntlm_auth] expand: --username=%{mschap:User-Name} -> --username=whitmarm
[ntlm_auth] expand: --password=%{User-Password} -> --password=*
Exec-Program output: NT_STATUS_OK: Success (0x0)
Exec-Program-Wait: plaintext: NT_STATUS_OK: Success (0x0)
Exec-Program: returned: 0
++[ntlm_auth] returns ok
Login OK: [whitmarm] (from client Anyone port 0 cli xxx.xxx.104.10)
+- entering group post-auth {...}
[user_group] Added User_Group_Name: 'path_group' to request_items
++[user_group] returns ok
++[nas_group] returns notfound
++[exec] returns noop
++? if (User_Group_Name == path_group)
? Evaluating (User_Group_Name == path_group) -> TRUE
++? if (User_Group_Name == path_group) -> TRUE
++- entering if (User_Group_Name == path_group) {...}
+++? if (Nas_Group_Name == comms_nas_group)
(Attribute Nas_Group_Name was not found)
++- if (User_Group_Name == path_group) returns noop
Sending Access-Accept of id 21 to xxx.xxx.104.10 port 58483
Finished request 0.
Going to the next request
Waking up in 4.9 seconds.
Cleaning up request 0 ID 21 with timestamp +3
Ready to process requests.
-----------------------------------------------------------------------
switchgroup file:
path_nas_group:xxx.xxx.225.59,xxx.xxx.104.10
comms_nas_group:xxx.xxx.225.60
----------------------------------------------------------------------
nas_group module:
passwd nas_group {
filename = /etc/raddb/switchgroup
format = "~Nas_Group_Name:*,NAS-IP-Address"
hashsize = 50
ignorenislike = no
allowmultiplekeys = yes
delimiter = ":"
ignoreempty = no
}
-----------------------------------------------------------------------
-----------------------------------------------------------------------
Full debug, switchgroup file and nas_group module of success:
radiusd -X
FreeRADIUS Version 2.1.6, for host i686-pc-linux-gnu, built on Nov 20 2009 at 09:43:24
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/pap
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/exec
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/preprocess
including configuration file /etc/raddb/modules/ntlm_auth
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/linelog
including configuration file /etc/raddb/modules/radutmp
including configuration file /etc/raddb/modules/smsotp
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/ldap
including configuration file /etc/raddb/modules/nas_group
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/user_group
including configuration file /etc/raddb/modules/sqlcounter_expire_on_login
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/wimax
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/otp
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/krb5
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/modules/perl
including configuration file /etc/raddb/modules/detail
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/control-socket
including configuration file /etc/raddb/sites-enabled/inner-tunnel
including configuration file /etc/raddb/sites-enabled/default
group = radiusd
user = radiusd
including dictionary file /etc/raddb/dictionary
main {
prefix = "/usr"
localstatedir = "/var"
logdir = "/home/radlogs"
libdir = "/usr/lib/freeradius"
radacctdir = "/home/radlogs/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 = yes
log {
stripped_names = no
auth = yes
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 = "testing123"
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 LOCAL {
}
radiusd: #### Loading Clients ####
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = "*"
nastype = "other"
}
client xxx.xxx.107.40 {
require_message_authenticator = no
secret = "*"
shortname = "self"
}
client xxx.xxx.0.0/16 {
require_message_authenticator = no
secret = "*"
shortname = "Anyone"
nastype = "pc"
}
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: 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
}
Module: Linked to module rlm_unix
Module: Instantiating unix
unix {
radwtmp = "/home/radlogs/radwtmp"
}
Module: Linked to module rlm_eap
Module: Instantiating eap
eap {
default_eap_type = "md5"
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 = "/etc/raddb/certs/random"
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 = no
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: Instantiating ntlm_auth
exec ntlm_auth {
wait = yes
program = "/usr/bin/ntlm_auth --request-nt-key --domain=* --username=%{mschap:User-Name} --password=%{User-Password}"
input_pairs = "request"
shell_escape = yes
}
Module: Checking authorize {...} for more modules to load
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: Checking session {...} for more modules to load
Module: Linked to module rlm_radutmp
Module: Instantiating radutmp
radutmp {
filename = "/home/radlogs/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 = "/home/radlogs/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
Module: Linked to module rlm_passwd
Module: Instantiating user_group
passwd user_group {
filename = "/etc/raddb/usergroup"
format = "~User_Group_Name:*,User-Name"
delimiter = ":"
ignorenislike = no
ignoreempty = yes
allowmultiplekeys = yes
hashsize = 50
}
rlm_passwd: nfields: 2 keyfield 1(User-Name) listable: yes
Module: Instantiating nas_group
passwd nas_group {
filename = "/etc/raddb/switchgroup"
format = "~Nas_Group_Name:*,Calling-Station-Id"
delimiter = ":"
ignorenislike = no
ignoreempty = no
allowmultiplekeys = yes
hashsize = 50
}
rlm_passwd: nfields: 2 keyfield 1(Calling-Station-Id) listable: yes
Module: Linked to module rlm_always
Module: Instantiating reject
always reject {
rcode = "reject"
simulcount = 0
mpp = no
}
} # modules
} # server
radiusd: #### Opening IP addresses and Ports ####
listen {
type = "auth"
ipaddr = xxx.xxx.107.40
port = 0
}
listen {
type = "acct"
ipaddr = *
port = 0
}
listen {
type = "control"
listen {
socket = "/var/run/radiusd/radiusd.sock"
}
}
Listening on authentication address xxx.xxx.107.40 port 1812
Listening on accounting address * port 1813
Listening on command file /var/run/radiusd/radiusd.sock
Listening on proxy address xxx.xxx.107.40 port 1814
Ready to process requests.
rad_recv: Access-Request packet from host xxx.xxx.104.10 port 60275, id=22, length=70
User-Name = "whitmarm"
User-Password = "*"
NAS-IP-Address = xxx.xxx.225.59
Calling-Station-Id = "xxx.xxx.104.10"
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "whitmarm", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
[eap] No EAP-Message, not doing EAP
++[eap] returns noop
++[unix] returns notfound
[files] users: Matched entry whitmarm at line 7
++[files] returns ok
++[expiration] returns noop
++[logintime] returns noop
[pap] WARNING! No "known good" password found for the user. Authentication may fail because of this.
++[pap] returns noop
Found Auth-Type = ntlm_auth
+- entering group authenticate {...}
[ntlm_auth] expand: --username=%{mschap:User-Name} -> --username=whitmarm
[ntlm_auth] expand: --password=%{User-Password} -> --password=*
Exec-Program output: NT_STATUS_OK: Success (0x0)
Exec-Program-Wait: plaintext: NT_STATUS_OK: Success (0x0)
Exec-Program: returned: 0
++[ntlm_auth] returns ok
Login OK: [whitmarm] (from client Anyone port 0 cli xxx.xxx.104.10)
+- entering group post-auth {...}
[user_group] Added User_Group_Name: 'path_group' to request_items
++[user_group] returns ok
[nas_group] Added Nas_Group_Name: 'path_nas_group' to request_items
++[nas_group] returns ok
++[exec] returns noop
++? if (User_Group_Name == path_group)
? Evaluating (User_Group_Name == path_group) -> TRUE
++? if (User_Group_Name == path_group) -> TRUE
++- entering if (User_Group_Name == path_group) {...}
+++? if (Nas_Group_Name == comms_nas_group)
? Evaluating (Nas_Group_Name == comms_nas_group) -> FALSE
+++? if (Nas_Group_Name == comms_nas_group) -> FALSE
++- if (User_Group_Name == path_group) returns noop
Sending Access-Accept of id 22 to xxx.xxx.104.10 port 60275
Finished request 0.
Going to the next request
Waking up in 4.9 seconds.
Cleaning up request 0 ID 22 with timestamp +8
Ready to process requests.
-----------------------------------------------------------------------
switchgroup file:
path_nas_group:xxx.xxx.225.59,xxx.xxx.104.10
comms_nas_group:xxx.xxx.225.60
-------------------------------------------------------------------------
nas_group module:
passwd nas_group {
filename = /etc/raddb/switchgroup
format = "~Nas_Group_Name:*,Calling-Station-Id"
hashsize = 50
ignorenislike = no
allowmultiplekeys = yes
delimiter = ":"
ignoreempty = no
}
I cannot see anything obvious in the debug outputs that points to a mistake on my part.
Is it in fact due to freeradius storing ipaddr attribute values in an internal format which doesn't match the xxx.xxx.xxx.xxx format I'm using in my nas_group file?
Although they are displayed in human readable form in the debug output does freeradius translate them from it's internal format for display but not for lookups?
If that is the case can you tell me what format they are stored in so I can put the correct values in my nas_group file?
Or am I completely wrong?
Thanks for your help,
Mark Whitmarsh.
________________________________________
From: freeradius-users-bounces+mark.whitmarsh=nhs.net at lists.freeradius.org [freeradius-users-bounces+mark.whitmarsh=nhs.net at lists.freeradius.org] On Behalf Of Alan DeKok [aland at deployingradius.com]
Sent: 06 June 2010 09:34
To: FreeRadius users mailing list
Subject: Re: Restricting certain users access to certain NAS devices
Whitmarsh Mark (Leeds Teaching Hospitals NHS Trust) wrote:
> Thanks Alan. I've got that bit working now.
> However, I can't get my check on the NAS-IP-Address attribute to work.
>
> I now have this config:
OK... that should configure two groups.
> File sites-enabled/default - post-auth section
>
> etc_group
> nas_group
Which adds the User_Group_Name attribute to the request, as documented
in "man rlm_passwd", and raddb/modules/passwd.
> exec
> #if ("%{NAS-IP-Address}" == xxx.xxx.225.59) {
FYI: this could be simpler
if (NAS-IP-Address == xxx.xxx.225.59) {
> # update reply {
> # Reply-Message := "Mark Whitmarsh not allowed here"
> # }
> # reject
> #}
> if ("%{User_Group_Name}" == path_group) {
Again: if (User_Group_Name == path_group) {
> In debug nas_group always returns notfound. If I change the nas_group module to use Calling-Station-Id for example then it successfully returns my IP address (xxx.xxx.104.10).
> Is it because NAS-IP-Address is type ipaddr that it doesn't find it in the nas_group file?
It shouldn't be.
So... what does debug mode say?
Alan DeKok.
-
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