posixAccount,posixGroup, and CiscoAVPair
Pietro Accerboni
ace at sissa.it
Wed Mar 19 11:43:08 CET 2008
Hi, here is my problem:
0) Cisco APs - Radius - Ldap authentication via 802.1x - PEAP - MSCHAPv2
works.
1) I need to link the group of the user that try to authenticate with
the SSID, so i can allow only a particular group of users to use a
particular SSID/VLAN.
2) I have an OpenLDAP backend were all users and groups reside. users
have, among others, objectClass posixAccount and sambaSamAccount.
Groups have shadowAccount.
3) I DO NOT HAVE LDAPv3 SCHEMA FOR RADIUS ATTRIBUTES, so no objectClass
radiusprofile for users.
4) A typical entry for user (relevant attributes):
uid=username,ou=People,dc=mydomain,dc=it
uid=<username>
gidNumber=<gid>
..
5) A typical group entry (relevant attributes):
cn=groupname, dc=mydomain,dc=it
cn=<groupname>
gidNumber=<gid>
memberUid=<list of usernames>
...
6) I nave Cisco APs as NAS, with which i am able to send the SSID info,
using vsa, to the radius server. From the request list I see:
User-Name = "username"
Framed-MTU = 1400
Called-Station-Id = "xxxx.xxxx.xxxx"
Calling-Station-Id = "yyyy.yyyy.yyyy"
Cisco-AVPair = "ssid=ZZZZ"
Service-Type = Login-User
Message-Authenticator = 0x8bded00fdb8decb62a26bc9c01f33938
EAP-Message = 0x02.......
NAS-Port-Type = Wireless-802.11
Cisco-NAS-Port = "260"
NAS-Port = 260
NAS-IP-Address = nnn.nnn.nnn.nnn
NAS-Identifier = "apname"
7) I really connot figure out a correct configuration of:
* ldap module in radius.conf
* selection in users
* mapping of group attribute in ldap.attrmap
I try:
(radius.conf, module ldap)
filter =
"(&(objectClass=posixAccount)(uid=%{Stripped-User-Name:-%{User-Name}}))"
groupname_attribute=gidNumber
groupmembership_filter =
"(&(objectClass=posixGroup)(memberUid=%{Stripped-User-Name:-%{User-Name}))"
groupmembership_attribute = gidNumber
compare_check_items = yes (if i do not set this, all users with
valid credentials can log in!)
(users)
DEFAULT Cisco-AVPair=="ssid=SISSA-STAFF", Ldap-Group==800
Fall-Through = no
DEFAULT Cisco-AVPair=="ssid=SISSA-SIS", Ldap-Group==801
Fall-Through = no
Here is the 'radiusd -X' output:
----------------------------
Starting - reading configuration files ...
reread_config: reading radiusd.conf
Config: including file: /etc/raddb/proxy.conf
Config: including file: /etc/raddb/clients.conf
Config: including file: /etc/raddb/snmp.conf
Config: including file: /etc/raddb/eap.conf
Config: including file: /etc/raddb/ldap.conf
main: prefix = "/usr"
main: localstatedir = "/var"
main: logdir = "/var/log/radius"
main: libdir = "/usr/lib"
main: radacctdir = "/var/log/radius/radacct"
main: hostname_lookups = no
main: snmp = no
main: max_request_time = 30
main: cleanup_delay = 5
main: max_requests = 1024
main: delete_blocked_requests = 0
main: port = 0
main: allow_core_dumps = no
main: log_stripped_names = no
main: log_file = "/var/log/radius/radius.log"
main: log_auth = no
main: log_auth_badpass = no
main: log_auth_goodpass = no
main: pidfile = "/var/run/radiusd/radiusd.pid"
main: user = "radiusd"
main: group = "radiusd"
main: usercollide = no
main: lower_user = "no"
main: lower_pass = "no"
main: nospace_user = "no"
main: nospace_pass = "no"
main: checkrad = "/usr/sbin/checkrad"
main: proxy_requests = yes
proxy: retry_delay = 5
proxy: retry_count = 3
proxy: synchronous = no
proxy: default_fallback = yes
proxy: dead_time = 120
proxy: post_proxy_authorize = no
proxy: wake_all_if_all_dead = no
security: max_attributes = 200
security: reject_delay = 1
security: status_server = no
main: debug_level = 0
read_config_files: reading dictionary
read_config_files: reading naslist
Using deprecated naslist file. Support for this will go away soon.
read_config_files: reading clients
read_config_files: reading realms
radiusd: entering modules setup
Module: Library search path is /usr/lib
Module: Loaded exec
exec: wait = yes
exec: program = "(null)"
exec: input_pairs = "request"
exec: output_pairs = "(null)"
exec: packet_type = "(null)"
rlm_exec: Wait=yes but no output defined. Did you mean output=none?
Module: Instantiated exec (exec)
Module: Loaded expr
Module: Instantiated expr (expr)
Module: Loaded PAP
pap: encryption_scheme = "md5"
Module: Instantiated pap (pap)
Module: Loaded CHAP
Module: Instantiated chap (chap)
Module: Loaded MS-CHAP
mschap: use_mppe = yes
mschap: require_encryption = no
mschap: require_strong = no
mschap: with_ntdomain_hack = no
mschap: passwd = "(null)"
mschap: ntlm_auth = "(null)"
Module: Instantiated mschap (mschap)
Module: Loaded System
unix: cache = no
unix: passwd = "(null)"
unix: shadow = "/etc/shadow"
unix: group = "(null)"
unix: radwtmp = "/var/log/radius/radwtmp"
unix: usegroup = no
unix: cache_reload = 600
Module: Instantiated unix (unix)
Module: Loaded LDAP
ldap: server = "ldapserver.mydomain.it"
ldap: port = 389
ldap: net_timeout = 1
ldap: timeout = 4
ldap: timelimit = 3
ldap: identity = "cn=Reader,dc=sissa,dc=it"
ldap: tls_mode = no
ldap: start_tls = no
ldap: tls_cacertfile = "(null)"
ldap: tls_cacertdir = "(null)"
ldap: tls_certfile = "(null)"
ldap: tls_keyfile = "(null)"
ldap: tls_randfile = "(null)"
ldap: tls_require_cert = "allow"
ldap: password = "cippalippa1"
ldap: basedn = "dc=mydomain,dc=it"
ldap: filter =
"(&(objectClass=posixAccount)(uid=%{Stripped-User-Name:-%{User-Name}}))"
ldap: base_filter = "(objectclass=radiusprofile)"
ldap: default_profile = "(null)"
ldap: profile_attribute = "(null)"
ldap: password_header = "(null)"
ldap: password_attribute = "(null)"
ldap: access_attr = "(null)"
ldap: groupname_attribute = "gidNumber"
ldap: groupmembership_filter =
"(&(objectClass=posixGroup)(memberUid=%{Stripped-User-Name:-%{User-Name}))"
ldap: groupmembership_attribute = "gidNumber"
ldap: dictionary_mapping = "/etc/raddb/ldap.attrmap"
ldap: ldap_debug = 0
ldap: ldap_connections_number = 5
ldap: compare_check_items = yes
ldap: access_attr_used_for_allow = yes
ldap: do_xlat = yes
ldap: set_auth_type = yes
rlm_ldap: Registering ldap_groupcmp for Ldap-Group
rlm_ldap: Registering ldap_xlat with xlat_name ldap
rlm_ldap: reading ldap<->radius mappings from file /etc/raddb/ldap.attrmap
rlm_ldap: LDAP radiusCheckItem mapped to RADIUS $GENERIC$
rlm_ldap: LDAP radiusReplyItem mapped to RADIUS $GENERIC$
rlm_ldap: LDAP radiusAuthType mapped to RADIUS Auth-Type
rlm_ldap: LDAP radiusSimultaneousUse mapped to RADIUS Simultaneous-Use
rlm_ldap: LDAP radiusCalledStationId mapped to RADIUS Called-Station-Id
rlm_ldap: LDAP radiusCallingStationId mapped to RADIUS Calling-Station-Id
rlm_ldap: LDAP sambaLMPassword mapped to RADIUS LM-Password
rlm_ldap: LDAP sambaNTPassword mapped to RADIUS NT-Password
rlm_ldap: LDAP sambaAcctFlags mapped to RADIUS SMB-Account-CTRL-TEXT
rlm_ldap: LDAP radiusExpiration mapped to RADIUS Expiration
rlm_ldap: LDAP radiusNASIpAddress mapped to RADIUS NAS-IP-Address
rlm_ldap: LDAP radiusServiceType mapped to RADIUS Service-Type
rlm_ldap: LDAP radiusFramedProtocol mapped to RADIUS Framed-Protocol
rlm_ldap: LDAP radiusFramedIPAddress mapped to RADIUS Framed-IP-Address
rlm_ldap: LDAP radiusFramedIPNetmask mapped to RADIUS Framed-IP-Netmask
rlm_ldap: LDAP radiusFramedRoute mapped to RADIUS Framed-Route
rlm_ldap: LDAP radiusFramedRouting mapped to RADIUS Framed-Routing
rlm_ldap: LDAP radiusFilterId mapped to RADIUS Filter-Id
rlm_ldap: LDAP radiusFramedMTU mapped to RADIUS Framed-MTU
rlm_ldap: LDAP radiusFramedCompression mapped to RADIUS Framed-Compression
rlm_ldap: LDAP radiusLoginIPHost mapped to RADIUS Login-IP-Host
rlm_ldap: LDAP radiusLoginService mapped to RADIUS Login-Service
rlm_ldap: LDAP radiusLoginTCPPort mapped to RADIUS Login-TCP-Port
rlm_ldap: LDAP radiusCallbackNumber mapped to RADIUS Callback-Number
rlm_ldap: LDAP radiusCallbackId mapped to RADIUS Callback-Id
rlm_ldap: LDAP radiusFramedIPXNetwork mapped to RADIUS Framed-IPX-Network
rlm_ldap: LDAP radiusClass mapped to RADIUS Class
rlm_ldap: LDAP radiusSessionTimeout mapped to RADIUS Session-Timeout
rlm_ldap: LDAP radiusIdleTimeout mapped to RADIUS Idle-Timeout
rlm_ldap: LDAP radiusTerminationAction mapped to RADIUS Termination-Action
rlm_ldap: LDAP radiusLoginLATService mapped to RADIUS Login-LAT-Service
rlm_ldap: LDAP radiusLoginLATNode mapped to RADIUS Login-LAT-Node
rlm_ldap: LDAP radiusLoginLATGroup mapped to RADIUS Login-LAT-Group
rlm_ldap: LDAP radiusFramedAppleTalkLink mapped to RADIUS
Framed-AppleTalk-Link
rlm_ldap: LDAP radiusFramedAppleTalkNetwork mapped to RADIUS
Framed-AppleTalk-Network
rlm_ldap: LDAP radiusFramedAppleTalkZone mapped to RADIUS
Framed-AppleTalk-Zone
rlm_ldap: LDAP radiusPortLimit mapped to RADIUS Port-Limit
rlm_ldap: LDAP radiusLoginLATPort mapped to RADIUS Login-LAT-Port
rlm_ldap: LDAP radiusReplyMessage mapped to RADIUS Reply-Message
conns: 0x9561bc8
Module: Instantiated ldap (ldap)
Module: Loaded eap
eap: default_eap_type = "peap"
eap: timer_expire = 60
eap: ignore_unknown_eap_types = no
eap: cisco_accounting_username_bug = no
rlm_eap: Loaded and initialized type md5
rlm_eap: Loaded and initialized type leap
gtc: challenge = "Password: "
gtc: auth_type = "PAP"
rlm_eap: Loaded and initialized type gtc
tls: rsa_key_exchange = no
tls: dh_key_exchange = yes
tls: rsa_key_length = 512
tls: dh_key_length = 512
tls: verify_depth = 0
tls: CA_path = "(null)"
tls: pem_file_type = yes
tls: private_key_file = "/etc/raddb/certs/mydomain-certs/key.pem"
tls: certificate_file = "/etc/raddb/certs/mydomain-certs/crt.pem"
tls: CA_file = "/etc/raddb/certs/mydomain-certs/mydomain-ca.pem"
tls: private_key_password = "(null)"
tls: dh_file = "/etc/raddb/certs/dh"
tls: random_file = "/etc/raddb/certs/random"
tls: fragment_size = 1024
tls: include_length = yes
tls: check_crl = no
tls: check_cert_cn = "(null)"
tls: cipher_list = "(null)"
tls: check_cert_issuer = "(null)"
rlm_eap_tls: Loading the certificate file as a chain
rlm_eap: Loaded and initialized type tls
ttls: default_eap_type = "md5"
ttls: copy_request_to_tunnel = no
ttls: use_tunneled_reply = no
rlm_eap: Loaded and initialized type ttls
peap: default_eap_type = "mschapv2"
peap: copy_request_to_tunnel = yes
peap: use_tunneled_reply = no
peap: proxy_tunneled_request_as_eap = yes
rlm_eap: Loaded and initialized type peap
mschapv2: with_ntdomain_hack = no
rlm_eap: Loaded and initialized type mschapv2
Module: Instantiated eap (eap)
Module: Loaded preprocess
preprocess: huntgroups = "/etc/raddb/huntgroups"
preprocess: hints = "/etc/raddb/hints"
preprocess: with_ascend_hack = no
preprocess: ascend_channels_per_line = 23
preprocess: with_ntdomain_hack = no
preprocess: with_specialix_jetstream_hack = no
preprocess: with_cisco_vsa_hack = no
preprocess: with_alvarion_vsa_hack = no
Module: Instantiated preprocess (preprocess)
Module: Loaded realm
realm: format = "suffix"
realm: delimiter = "@"
realm: ignore_default = no
realm: ignore_null = no
Module: Instantiated realm (suffix)
Module: Loaded files
files: usersfile = "/etc/raddb/users"
files: acctusersfile = "/etc/raddb/acct_users"
files: preproxy_usersfile = "/etc/raddb/preproxy_users"
files: compat = "no"
Module: Instantiated files (files)
Module: Loaded Acct-Unique-Session-Id
acct_unique: key = "User-Name, Acct-Session-Id, NAS-IP-Address,
Client-IP-Address, NAS-Port"
Module: Instantiated acct_unique (acct_unique)
Module: Loaded detail
detail: detailfile =
"/var/log/radius/radacct/%{Client-IP-Address}/detail-%Y%m%d"
detail: detailperm = 384
detail: dirperm = 493
detail: locking = no
Module: Instantiated detail (detail)
Module: Loaded radutmp
radutmp: filename = "/var/log/radius/radutmp"
radutmp: username = "%{User-Name}"
radutmp: case_sensitive = yes
radutmp: check_with_nas = yes
radutmp: perm = 384
radutmp: callerid = yes
Module: Instantiated radutmp (radutmp)
Listening on authentication *:1812
Listening on accounting *:1813
Ready to process requests.
rad_recv: Access-Request packet from host xxx.xxx.xxx.xxx:1645, id=181,
length=165
User-Name = "test"
Framed-MTU = 1400
Called-Station-Id = "001b.2b6a.dbd0"
Calling-Station-Id = "000d.889c.8b70"
Cisco-AVPair = "ssid=SISSA-SIS"
Service-Type = Login-User
Message-Authenticator = 0x4e756588125d03a06da9a2bc7acf6ede
EAP-Message = 0x0202000801616365
NAS-Port-Type = Wireless-802.11
Cisco-NAS-Port = "290"
NAS-Port = 290
NAS-IP-Address = xxx.xxx.xxx.xxx
NAS-Identifier = "ciscoap"
Processing the authorize section of radiusd.conf
modcall: entering group authorize for request 0
modcall[authorize]: module "preprocess" returns ok for request 0
modcall[authorize]: module "chap" returns noop for request 0
modcall[authorize]: module "mschap" returns noop for request 0
rlm_realm: No '@' in User-Name = "test", looking up realm NULL
rlm_realm: No such realm "NULL"
modcall[authorize]: module "suffix" returns noop for request 0
rlm_eap: EAP packet type response id 2 length 8
rlm_eap: No EAP Start, assuming it's an on-going EAP conversation
modcall[authorize]: module "eap" returns updated for request 0
rlm_ldap: Entering ldap_groupcmp()
radius_xlat: 'dc=mydomain,dc=it'
radius_xlat: '(&(objectClass=posixAccount)(uid=test))'
rlm_ldap: ldap_get_conn: Checking Id: 0
rlm_ldap: ldap_get_conn: Got Id: 0
rlm_ldap: attempting LDAP reconnection
rlm_ldap: (re)connect to auth-01.mydomain.it:389, authentication 0
rlm_ldap: could not set LDAP_OPT_X_TLS_REQUIRE_CERT option to allow
rlm_ldap: bind as cn=user,dc=mydomain,dc=it/password to
ldapserver.mydomain.it:389
rlm_ldap: waiting for bind result ...
rlm_ldap: Bind was successful
rlm_ldap: performing search in dc=mydomain,dc=it, with filter
(&(objectClass=posixAccount)(uid=test))
rlm_ldap: ldap_release_conn: Release Id: 0
radius_xlat: '(&(objectClass=posixGroup)(memberUid=test))'
rlm_ldap: ldap_get_conn: Checking Id: 0
rlm_ldap: ldap_get_conn: Got Id: 0
rlm_ldap: performing search in dc=mydomain,dc=it, with filter
(&(gidNumber=801)(&(objectClass=posixGroup)(memberUid=test)))
rlm_ldap::ldap_groupcmp: User found in group 801
rlm_ldap: ldap_release_conn: Release Id: 0
users: Matched entry DEFAULT at line 4
modcall[authorize]: module "files" returns ok for request 0
rlm_ldap: - authorize
rlm_ldap: performing user authorization for test
radius_xlat: '(&(objectClass=posixAccount)(uid=test))'
radius_xlat: 'dc=mydomain,dc=it'
rlm_ldap: ldap_get_conn: Checking Id: 0
rlm_ldap: ldap_get_conn: Got Id: 0
rlm_ldap: performing search in dc=mydomain,dc=it, with filter
(&(objectClass=posixAccount)(uid=test))
rlm_ldap: looking for check items in directory...
rlm_ldap: Adding sambaAcctFlags as SMB-Account-CTRL-TEXT, value [U] & op=21
rlm_ldap: Adding sambaNTPassword as NT-Password, value
xxxxxxxxxxxxxxxxxxxxxxxx & op=21
rlm_ldap: Adding sambaLMPassword as LM-Password, value
xxxxxxxxxxxxxxxxxxxxxxxxxx & op=21
rlm_ldap: looking for reply items in directory...
rlm_ldap: Entering ldap_groupcmp()
radius_xlat: 'dc=mydomain,dc=it'
radius_xlat: '(&(objectClass=posixGroup)(memberUid=test))'
rlm_ldap: ldap_get_conn: Checking Id: 0
rlm_ldap: ldap_get_conn: Checking Id: 1
rlm_ldap: ldap_get_conn: Got Id: 1
rlm_ldap: attempting LDAP reconnection
rlm_ldap: (re)connect to auth-01.mydomain.it:389, authentication 0
rlm_ldap: could not set LDAP_OPT_X_TLS_REQUIRE_CERT option to allow
rlm_ldap: bind as cn=user,dc=mydomain,dc=it/passowrd to
ldapserver.mydomain.it:389
rlm_ldap: waiting for bind result ...
rlm_ldap: Bind was successful
rlm_ldap: performing search in dc=mydomain,dc=it, with filter
(&(gidNumber=801)(&(objectClass=posixGroup)(memberUid=test)))
rlm_ldap::ldap_groupcmp: User found in group 801
rlm_ldap: ldap_release_conn: Release Id: 1
rlm_ldap: Pairs do not match. Rejecting user.
rlm_ldap: ldap_release_conn: Release Id: 0
modcall[authorize]: module "ldap" returns reject for request 0
modcall: leaving group authorize (returns reject) for request 0
Delaying request 0 for 1 seconds
Finished request 0
---------------------------
If you see in the bottom of the log, 'rlm_ldap::ldap_groupcmp: User
found in group 801' but also 'rlm_ldap: Pairs do not match. Rejecting user'
Any help really appreciated!
Pietro
More information about the Freeradius-Users
mailing list