Trying to get tunneling to work
Mike Bernhardt
bernhardt at bart.gov
Wed Dec 16 21:57:07 CET 2009
-----Original Message-----
From: tnt at kalik.net [mailto:tnt at kalik.net]
Sent: Thursday, December 10, 2009 5:05 PM
To: FreeRadius users mailing list
Subject: Re: Trying to get tunneling to work
> I am trying to set up freeradius to proxy requests 802.11 MSCHAPv2 to an
> IAS
> server. The IAS requests are authenticated by a Safeword server, which
> doesn't support 802.11. So the idea is that freeradius takes the request,
> proxies it to IAS as if it was a non-802.11 client, IAS passes it to the
> integrated Safeword server, and everything is happy.
>
>
>
> My configuration works from a 802.11 supplicant if the user exist locally
> in
> freeradius, but no proxying happens when the user doesn't exist locally.
Read comments in peap section of eap.conf. Replace LOCAL in Proxy-To-Realm
statement in inner-tunnel virtual server with the name of the realm
pointing to IAS server.
Ivan Kalik
As far as I know, this is the case. It is replaced in the users file. I did
a little cleanup on the other config files too. Here is the new output,
though the result is the same.
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
}
realm safeword.eng {
authhost = 192.168.30.29:1812
accthost = 192.168.30.29:1813
secret = Testing_Testing
}
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
}
radiusd: #### Loading Clients ####
client 192.168.7.139/32 {
require_message_authenticator = no
secret = "Testing_Testing"
}
client 127.0.0.1/32 {
require_message_authenticator = no
secret = "testing123"
}
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 = "/usr/local/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 = "/usr/local/etc/raddb/certs/server.pem"
certificate_file = "/usr/local/etc/raddb/certs/server.pem"
CA_file = "/usr/local/etc/raddb/certs/ca.pem"
private_key_password = "whatever"
dh_file = "/usr/local/etc/raddb/certs/dh"
random_file = "/usr/local/etc/raddb/certs/random"
fragment_size = 1024
include_length = yes
check_crl = no
cipher_list = "DEFAULT"
make_cert_command = "/usr/local/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 = yes
use_tunneled_reply = yes
proxy_tunneled_request_as_eap = no
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 suffix
realm suffix {
format = "suffix"
delimiter = "@"
ignore_default = no
ignore_null = no
}
Module: Linked to module rlm_files
Module: Instantiating files
files {
usersfile = "/usr/local/etc/raddb/users"
acctusersfile = "/usr/local/etc/raddb/acct_users"
preproxy_usersfile = "/usr/local/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 = "/usr/local/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 = "/usr/local/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 = "/usr/local/etc/raddb/huntgroups"
hints = "/usr/local/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 =
"/usr/local/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 = "/usr/local/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 = "/usr/local/var/run/radiusd/radiusd.sock"
}
}
Listening on authentication address * port 1812
Listening on accounting address * port 1813
Listening on command file /usr/local/var/run/radiusd/radiusd.sock
Listening on proxy address * port 1814
Listening on proxy address 127.0.0.1 port 35452
Ready to process requests.
rad_recv: Access-Request packet from host 192.168.7.139 port 1645, id=148,
length=152
User-Name = "mbernhardt"
Framed-MTU = 1400
Called-Station-Id = "000a.f4e2.2a00"
Calling-Station-Id = "0021.6a46.b0cc"
Service-Type = Login-User
Message-Authenticator = 0x26cd48e5b9fc61664cee336cc1792ccc
EAP-Message = 0x020700061900
NAS-Port-Type = Wireless-802.11
NAS-Port = 3292
State = 0xc871db2ccc76c2f4ed36eeb8b11d50cb
NAS-IP-Address = 192.168.7.139
NAS-Identifier = "lks15w-ap350"
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
[eap] EAP packet type response id 7 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 is finished
[peap] eaptls_verify returned 3
[peap] eaptls_process returned 3
[peap] EAPTLS_SUCCESS
++[eap] returns handled
Sending Access-Challenge of id 148 to 192.168.7.139 port 1645
EAP-Message =
0x0108002019001703010015ec4896e2cabf793395eed36c929b08a15179a89940
Message-Authenticator = 0x00000000000000000000000000000000
State = 0xc871db2ccd79c2f4ed36eeb8b11d50cb
Finished request 21.
Going to the next request
Waking up in 2.2 seconds.
rad_recv: Access-Request packet from host 192.168.7.139 port 1645, id=149,
length=184
User-Name = "mbernhardt"
Framed-MTU = 1400
Called-Station-Id = "000a.f4e2.2a00"
Calling-Station-Id = "0021.6a46.b0cc"
Service-Type = Login-User
Message-Authenticator = 0x6a4dbd84e5ab9893eeba02d1c466b5f2
EAP-Message =
0x020800261900170301001be14c477ed7b3337d1f7a595cbfe47a98ceb6bbac01a2b8d714fb
21
NAS-Port-Type = Wireless-802.11
NAS-Port = 3292
State = 0xc871db2ccd79c2f4ed36eeb8b11d50cb
NAS-IP-Address = 192.168.7.139
NAS-Identifier = "lks15w-ap350"
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
[eap] EAP packet type response id 8 length 38
[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] eaptls_verify returned 7
[peap] Done initial handshake
[peap] eaptls_process returned 7
[peap] EAPTLS_OK
[peap] Session established. Decoding tunneled attributes.
[peap] Identity - mbernhardt
[peap] Got tunneled request
EAP-Message = 0x0208000f016d6265726e6861726474
server {
PEAP: Got tunneled identity of mbernhardt
PEAP: Setting default EAP type for tunneled EAP session.
PEAP: Setting User-Name to mbernhardt
Sending tunneled request
EAP-Message = 0x0208000f016d6265726e6861726474
FreeRADIUS-Proxied-To = 127.0.0.1
User-Name = "mbernhardt"
Framed-MTU = 1400
Called-Station-Id = "000a.f4e2.2a00"
Calling-Station-Id = "0021.6a46.b0cc"
Service-Type = Login-User
NAS-Port-Type = Wireless-802.11
NAS-Port = 3292
NAS-IP-Address = 192.168.7.139
NAS-Identifier = "lks15w-ap350"
server inner-tunnel {
+- entering group authorize {...}
++[chap] returns noop
++[mschap] returns noop
++[unix] returns updated
[suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
++[control] returns noop
[eap] Request is supposed to be proxied to Realm LOCAL. Not doing EAP.
++[eap] returns noop
[files] users: Matched entry DEFAULT at line 3
++[files] returns ok
++[expiration] returns noop
++[logintime] returns noop
++[pap] returns noop
} # server inner-tunnel
[peap] Got tunneled reply code 0
PEAP: Calling authenticate in order to initiate tunneled EAP session.
+- entering group authenticate {...}
[eap] EAP Identity
[eap] processing type mschapv2
rlm_eap_mschapv2: Issuing Challenge
++[eap] returns handled
PEAP: Cancelling proxy to realm safeword.eng until the tunneled EAP
session has been established
[peap] Got tunneled reply RADIUS code 11
EAP-Message =
0x010900241a0109001f10421fda5c741f99bbbd660650209f40a16d6265726e6861726474
Message-Authenticator = 0x00000000000000000000000000000000
State = 0x3dd5fbf33ddce1440d05495c582e500e
[peap] Got tunneled Access-Challenge
++[eap] returns handled
Sending Access-Challenge of id 149 to 192.168.7.139 port 1645
EAP-Message =
0x0109003b190017030100307e4b0e6a672924f75bbb213a62d8e08842877ff9e84d690b7bf5
5531e4eced9572a2c0f4f230db301d3
ac0e43d4ec15e
Message-Authenticator = 0x00000000000000000000000000000000
State = 0xc871db2cce78c2f4ed36eeb8b11d50cb
Finished request 22.
Going to the next request
Waking up in 2.2 seconds.
rad_recv: Access-Request packet from host 192.168.7.139 port 1645, id=150,
length=238
User-Name = "mbernhardt"
Framed-MTU = 1400
Called-Station-Id = "000a.f4e2.2a00"
Calling-Station-Id = "0021.6a46.b0cc"
Service-Type = Login-User
Message-Authenticator = 0x29cb8c7c5e0ea13931129b5404267fbd
EAP-Message =
0x0209005c19001703010051da572ed9a75ebdddd39a40408f8c6eb4f537f65470fba05b8b82
c174224dcd6de968b259232794f361d
51ab246ab8b41b50bd8dac1777fc412c4f78b4015250d700441464b71f7c27aa6c3901adfff3
1a7
NAS-Port-Type = Wireless-802.11
NAS-Port = 3292
State = 0xc871db2cce78c2f4ed36eeb8b11d50cb
NAS-IP-Address = 192.168.7.139
NAS-Identifier = "lks15w-ap350"
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
[eap] EAP packet type response id 9 length 92
[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] eaptls_verify returned 7
[peap] Done initial handshake
[peap] eaptls_process returned 7
[peap] EAPTLS_OK
[peap] Session established. Decoding tunneled attributes.
[peap] EAP type mschapv2
[peap] Got tunneled request
EAP-Message =
0x020900451a0209004031b326572c085e1b042802b27f632ddc860000000000000000914fa3
c6b927312212cb1ae7675131d7f1a75
7e2a0deaeab006d6265726e6861726474
server {
PEAP: Setting User-Name to mbernhardt
Sending tunneled request
EAP-Message =
0x020900451a0209004031b326572c085e1b042802b27f632ddc860000000000000000914fa3
c6b927312212cb1ae7675131d7f1a75
7e2a0deaeab006d6265726e6861726474
FreeRADIUS-Proxied-To = 127.0.0.1
User-Name = "mbernhardt"
State = 0x3dd5fbf33ddce1440d05495c582e500e
Framed-MTU = 1400
Called-Station-Id = "000a.f4e2.2a00"
Calling-Station-Id = "0021.6a46.b0cc"
Service-Type = Login-User
NAS-Port-Type = Wireless-802.11
NAS-Port = 3292
NAS-IP-Address = 192.168.7.139
NAS-Identifier = "lks15w-ap350"
server inner-tunnel {
+- entering group authorize {...}
++[chap] returns noop
++[mschap] returns noop
++[unix] returns updated
[suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
++[control] returns noop
[eap] Request is supposed to be proxied to Realm LOCAL. Not doing EAP.
++[eap] returns noop
[files] users: Matched entry DEFAULT at line 3
++[files] returns ok
++[expiration] returns noop
++[logintime] returns noop
++[pap] returns noop
} # server inner-tunnel
[peap] Got tunneled reply code 0
PEAP: Calling authenticate in order to initiate tunneled EAP session.
+- entering group authenticate {...}
[eap] Request found, released from the list
[eap] EAP/mschapv2
[eap] processing type mschapv2
[eap] Not-EAP proxy set. Not composing EAP
++[eap] returns handled
PEAP: Tunneled authentication will be proxied to safeword.eng
PEAP: Remembering to do EAP-MS-CHAP-V2 post-proxy.
[eap] Tunneled session will be proxied. Not doing EAP.
++[eap] returns handled
WARNING: Empty section. Using default return values.
ERROR: Failed to create a new socket for proxying requests.
ERROR: Failed inserting request into proxy hash.
ERROR: Failed to proxy request 23
There was no response configured: rejecting request 23
Using Post-Auth-Type Reject
+- entering group REJECT {...}
[attr_filter.access_reject] expand: %{User-Name} -> mbernhardt
attr_filter: Matched entry DEFAULT at line 11
++[attr_filter.access_reject] returns updated
Delaying reject of request 23 for 1 seconds
Going to the next request
Waking up in 0.9 seconds.
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