request->packet == NULL. Possible bug (simple example is provided).
Dmitry V. Krivenok
krivenok.dmitry at gmail.com
Mon Oct 27 21:26:17 CET 2008
Hello!
Please look at the simplest rlm I wrote to demonstrate strange problem:
krivenok at develop2 22:21:06 ~/work/svn/libs/rlm_osb/trunk $ cat rlm_osb.c
#include <freeradius-devel/radiusd.h>
#include <freeradius-devel/modules.h>
///////////////////////////////////////////////////////////////////////////////
static int osb_instantiate(CONF_SECTION *conf, void **instance)
{
return 0;
}
///////////////////////////////////////////////////////////////////////////////
static int osb_authorize(void *inst, REQUEST *request)
{
DEBUG("rlm_osb: REQUEST %p", request);
DEBUG("rlm_osb: PACKET %p", request->packet);
return RLM_MODULE_NOOP;
}
///////////////////////////////////////////////////////////////////////////////
static int osb_detach(void *instance)
{
return 0;
}
///////////////////////////////////////////////////////////////////////////////
module_t rlm_osb = {
RLM_MODULE_INIT,
"osb",
RLM_TYPE_THREAD_SAFE, /* type */
osb_instantiate, /* instantiation */
osb_detach, /* detach */
{
NULL, /* authentication */
osb_authorize, /* authorization */
NULL, /* preaccounting */
NULL, /* accounting */
NULL, /* checksimul */
NULL, /* pre-proxy */
NULL, /* post-proxy */
NULL /* post-auth */
},
};
///////////////////////////////////////////////////////////////////////////////
krivenok at develop2 22:21:10 ~/work/svn/libs/rlm_osb/trunk $ make
gcc -g -fPIC -DPIC -c -MD -Wall
-I/home/krivenok/dev_builds/freeradius-server-current/src/ rlm_osb.c
gcc -g -shared -Wl,-soname,rlm_osb-current.so -o rlm_osb-current.so
rlm_osb.o
krivenok at develop2 22:21:25 ~/work/svn/libs/rlm_osb/trunk $ sudo make install
install rlm_osb-current.so /usr/local/fr_curr/lib
ln -fs /usr/local/fr_curr/lib/rlm_osb-current.so
/usr/local/fr_curr/lib/rlm_osb.so
krivenok at develop2 22:21:37 ~/work/svn/libs/rlm_osb/trunk $
So far, so good.
Module was compiled and installed successfully.
The latest freeradius version is used (got via git):
krivenok at develop2 22:19:03 /usr/local/fr_curr/sbin $ sudo ./radiusd -v
radiusd: FreeRADIUS Version 2.1.2, for host i686-pc-linux-gnu, built on
Oct 27 2008 at 19:29:35
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.
For more information about these matters, see the file named COPYRIGHT.
krivenok at develop2 22:19:11 /usr/local/fr_curr/sbin $
Lets start the server in debug mode:
krivenok at develop2 22:37:21 /usr/local/fr_curr/sbin $ sudo ./radiusd -X
FreeRADIUS Version 2.1.2, for host i686-pc-linux-gnu, built on Oct 27
2008 at 19:29:35
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 v2.
Starting - reading configuration files ...
including configuration file /usr/local/fr_curr/etc/raddb/radiusd.conf
including configuration file /usr/local/fr_curr/etc/raddb/proxy.conf
including configuration file /usr/local/fr_curr/etc/raddb/clients.conf
including files in directory /usr/local/fr_curr/etc/raddb/modules/
including configuration file
/usr/local/fr_curr/etc/raddb/modules/attr_filter
including configuration file /usr/local/fr_curr/etc/raddb/modules/ippool
including configuration file /usr/local/fr_curr/etc/raddb/modules/expr
including configuration file
/usr/local/fr_curr/etc/raddb/modules/acct_unique
including configuration file /usr/local/fr_curr/etc/raddb/modules/counter
including configuration file /usr/local/fr_curr/etc/raddb/modules/osb
including configuration file /usr/local/fr_curr/etc/raddb/modules/policy
including configuration file /usr/local/fr_curr/etc/raddb/modules/logintime
including configuration file /usr/local/fr_curr/etc/raddb/modules/mac2ip
including configuration file /usr/local/fr_curr/etc/raddb/modules/sradutmp
including configuration file /usr/local/fr_curr/etc/raddb/modules/wimax
including configuration file /usr/local/fr_curr/etc/raddb/modules/digest
including configuration file /usr/local/fr_curr/etc/raddb/modules/perl
including configuration file /usr/local/fr_curr/etc/raddb/modules/mac2vlan
including configuration file /usr/local/fr_curr/etc/raddb/modules/krb5
including configuration file /usr/local/fr_curr/etc/raddb/modules/passwd
including configuration file /usr/local/fr_curr/etc/raddb/modules/unix
including configuration file /usr/local/fr_curr/etc/raddb/modules/detail.log
including configuration file /usr/local/fr_curr/etc/raddb/modules/chap
including configuration file /usr/local/fr_curr/etc/raddb/modules/radutmp
including configuration file /usr/local/fr_curr/etc/raddb/modules/smbpasswd
including configuration file
/usr/local/fr_curr/etc/raddb/modules/attr_rewrite
including configuration file /usr/local/fr_curr/etc/raddb/modules/always
including configuration file /usr/local/fr_curr/etc/raddb/modules/realm
including configuration file /usr/local/fr_curr/etc/raddb/modules/echo
including configuration file /usr/local/fr_curr/etc/raddb/modules/mschap
including configuration file /usr/local/fr_curr/etc/raddb/modules/inner-eap
including configuration file /usr/local/fr_curr/etc/raddb/modules/files
including configuration file
/usr/local/fr_curr/etc/raddb/modules/detail.example.com
including configuration file /usr/local/fr_curr/etc/raddb/modules/preprocess
including configuration file /usr/local/fr_curr/etc/raddb/modules/pam
including configuration file /usr/local/fr_curr/etc/raddb/modules/sql_log
including configuration file /usr/local/fr_curr/etc/raddb/modules/pap
including configuration file /usr/local/fr_curr/etc/raddb/modules/linelog
including configuration file /usr/local/fr_curr/etc/raddb/modules/ldap
including configuration file /usr/local/fr_curr/etc/raddb/modules/etc_group
including configuration file /usr/local/fr_curr/etc/raddb/modules/checkval
including configuration file /usr/local/fr_curr/etc/raddb/modules/expiration
including configuration file /usr/local/fr_curr/etc/raddb/modules/detail
including configuration file /usr/local/fr_curr/etc/raddb/modules/exec
including configuration file /usr/local/fr_curr/etc/raddb/eap.conf
including configuration file /usr/local/fr_curr/etc/raddb/sql.conf
including configuration file
/usr/local/fr_curr/etc/raddb/sql/mysql/dialup.conf
including configuration file
/usr/local/fr_curr/etc/raddb/sql/mysql/counter.conf
including configuration file /usr/local/fr_curr/etc/raddb/policy.conf
including files in directory /usr/local/fr_curr/etc/raddb/sites-enabled/
including configuration file
/usr/local/fr_curr/etc/raddb/sites-enabled/inner-tunnel
including configuration file
/usr/local/fr_curr/etc/raddb/sites-enabled/default
including dictionary file /usr/local/fr_curr/etc/raddb/dictionary
main {
prefix = "/usr/local/fr_curr"
localstatedir = "/usr/local/fr_curr/var"
logdir = "/usr/local/fr_curr/var/log/radius"
libdir = "/usr/local/fr_curr/lib"
radacctdir = "/usr/local/fr_curr/var/log/radius/radacct"
hostname_lookups = no
max_request_time = 30
cleanup_delay = 5
max_requests = 1024
allow_core_dumps = no
pidfile = "/usr/local/fr_curr/var/run/radiusd/radiusd.pid"
checkrad = "/usr/local/fr_curr/sbin/checkrad"
debug_level = 0
proxy_requests = yes
log {
stripped_names = no
auth = no
auth_badpass = no
auth_goodpass = no
}
security {
max_attributes = 200
reject_delay = 1
status_server = yes
}
}
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = "testing123"
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 = "testing123"
response_window = 20
max_outstanding = 65536
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
}
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 = 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 = "/usr/local/fr_curr/var/log/radius/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 = "/usr/local/fr_curr/etc/raddb/certs/server.pem"
certificate_file = "/usr/local/fr_curr/etc/raddb/certs/server.pem"
CA_file = "/usr/local/fr_curr/etc/raddb/certs/ca.pem"
private_key_password = "whatever"
dh_file = "/usr/local/fr_curr/etc/raddb/certs/dh"
random_file = "/usr/local/fr_curr/etc/raddb/certs/random"
fragment_size = 1024
include_length = yes
check_crl = no
cipher_list = "DEFAULT"
make_cert_command = "/usr/local/fr_curr/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"
}
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 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/fr_curr/etc/raddb/users"
acctusersfile = "/usr/local/fr_curr/etc/raddb/acct_users"
preproxy_usersfile = "/usr/local/fr_curr/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/fr_curr/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/fr_curr/etc/raddb/attrs.access_reject"
key = "%{User-Name}"
}
}
}
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/fr_curr/etc/raddb/huntgroups"
hints = "/usr/local/fr_curr/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_osb
Module: Instantiating osb
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/fr_curr/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/fr_curr/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
}
radiusd: #### Opening IP addresses and Ports ####
listen {
type = "auth"
ipaddr = *
port = 0
}
listen {
type = "acct"
ipaddr = *
port = 0
}
Listening on auth address * port 1812
Listening on acct address * port 1813
Listening on proxy address * port 1814
Ready to process requests.
and then send test packet:
krivenok at develop2 22:37:39 /usr/local/fr_curr/bin $ cat ~/radius_test.txt
User-Name = "some_user"
User-Password = "some_pass"
Nas-Ip-Address = "192.168.1.1"
krivenok at develop2 22:39:08 /usr/local/fr_curr/bin $ cat
~/radius_test.txt | sudo ./radclient localhost auth testing123
Received response ID 140, code 3, length = 20
krivenok at develop2 22:39:15 /usr/local/fr_curr/bin $
Lets look at daemon's output:
rad_recv: Access-Request packet from host 127.0.0.1 port 29966, id=140,
length=55
User-Name = "some_user"
User-Password = "some_pass"
NAS-IP-Address = 192.168.1.1
+- entering group authorize {...}
++[preprocess] returns ok
rlm_osb: REQUEST 0x8174730
rlm_osb: PACKET (nil)
++[osb] returns noop
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "some_user", 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] returns noop
++[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
No authenticate method (Auth-Type) configuration found for the request:
Rejecting the user
Failed to authenticate the user.
Using Post-Auth-Type Reject
+- entering group REJECT {...}
[attr_filter.access_reject] expand: %{User-Name} -> some_user
attr_filter: Matched entry DEFAULT at line 11
++[attr_filter.access_reject] returns updated
Delaying reject of request 0 for 1 seconds
Going to the next request
Waking up in 0.9 seconds.
Sending delayed reject for request 0
Sending Access-Reject of id 140 to 127.0.0.1 port 29966
Waking up in 4.9 seconds.
Cleaning up request 0 ID 140 with timestamp +68
Ready to process requests.
What about the following output?
rlm_osb: REQUEST 0x8174730
rlm_osb: PACKET (nil)
++[osb] returns noop
request->packet is NULL.
It looks like a bug. Isn't it?
According to this output, request was received properly:
User-Name = "some_user"
User-Password = "some_pass"
NAS-IP-Address = 192.168.1.1
However request->packet field is NULL.
Any ideas?
P.S.
All worked fine with freeradius-2.0.5.
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