- Freeradius-Users - lists.freeradius.org

Authorization how to
by Mahesh S Kudva 23 Sep '05

23 Sep '05

Hi I have setup radius to have authentication. How do I authorize users to access specific resources for some and allow full access to others. Regards & Thanks ================ Mahesh S Kudva ------------------------------------------------------- Robosoft Technologies - Partners in Product Development

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RE: Maximum size Input-Octets/Output-Octets
by Jonathan De Graeve 23 Sep '05

23 Sep '05

Ok, I also have another question: Freeradius seems to use signed integers for the Acc-Input/Output-Octets Fri Sep 23 16:59:03 2005 Service-Type = Login-User User-Name = "jonathan" NAS-Identifier = "hotspot-2.wlan.imz.be" NAS-Port = 0 NAS-Port-Type = Ethernet Acct-Status-Type = Alive Acct-Authentic = RADIUS Acct-Session-Id = "4bd8b325bdeafd2d" Acct-Terminate-Cause = User-Request Acct-Session-Time = 1353 Acct-Input-Octets = 46596288 Acct-Input-Packets = 1163323 Acct-Input-Gigawords = 0 Acct-Output-Octets = 2147483647 Acct-Output-Packets = 1787355 Acct-Output-Gigawords = 0 Called-Station-Id = "194.8.52.38" Calling-Station-Id = "192.168.2.255" Framed-IP-Address = 192.168.2.255 NAS-IP-Address = 194.8.52.38 Proxy-State = 0x3836 Client-IP-Address = 194.8.52.85 Acct-Unique-Session-Id = "925f85fa82a0afb0" Timestamp = 1127487543 The source really sends unsigned 32bit. Any idea why radacct just stops @ 2GB I've implemented Gigawords as follows: function gigawords($bytes) { /* We use BCMath functions since normal integers don't work */ $gigawords = bcdiv( bcsub( $bytes, remainder($bytes) ) , 4294967295); return $gigawords; } function remainder($bytes) { /* Calculate the remainder */ $bytes = bcmod($bytes, 4294967295); return $bytes; -- Jonathan De Graeve Network/System Administrator Imelda vzw Informatica Dienst 015/50.52.98 jonathan.de.graeve(a)imelda.be --------- Always read the manual for the correct way to do things because the number of incorrect ways to do things is almost infinite --------- -----Oorspronkelijk bericht----- Van: freeradius-users-bounces(a)lists.freeradius.org [mailto:freeradius-users-bounces@lists.freeradius.org] Namens Alan DeKok Verzonden: vrijdag 23 september 2005 16:39 Aan: FreeRadius users mailing list Onderwerp: Re: Maximum size Input-Octets/Output-Octets "Jonathan De Graeve" <Jonathan.De.Graeve(a)imelda.be> wrote: > Is it 2^32 or (2^32 - 1) 2^32 can't be represented in a 32-bit number. It has 33 bits of data... Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

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Maximum size Input-Octets/Output-Octets
by Jonathan De Graeve 23 Sep '05

23 Sep '05

Is it 2^32 or (2^32 - 1) I'm programming a radius client and i'm at the gigawords stuff... J. -- Jonathan De Graeve Network/System Administrator Imelda vzw Informatica Dienst 015/50.52.98 jonathan.de.graeve(a)imelda.be --------- Always read the manual for the correct way to do things because the number of incorrect ways to do things is almost infinite ---------

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Wrong sequence of packets during re-authentication
by Bilal Shahid 23 Sep '05

23 Sep '05

Hello all, During my 802.1X Supplicant's re-authentication (using EAP-TTLS) with FreeRADIUS using DLINK switch, I face the following scenario: Sometimes "during re-authentication", one of the FreeRADIUS's replies does not reach the DLINK switch. When DLINK's RADIUS timer expires, it re-starts the re-authentication by sending the Supplicant's identity to FreeRADIUS. At this time, an initial couple of packets are exchanges correctly, however then it seems that FreeRADIUS wants to skip some of the packets and complete the authentication whereas my Supplicant wants to re-do everything. For example, during a 'correct re-authentication", FreeRADIUS sends the following packet: TLS_accept: before/accept initialization rlm_eap_tls: <<< TLS 1.0 Handshake [length 0067], ClientHello TLS_accept: SSLv3 read client hello A rlm_eap_tls: >>> TLS 1.0 Handshake [length 004a], ServerHello TLS_accept: SSLv3 write server hello A rlm_eap_tls: >>> TLS 1.0 Handshake [length 05ca], Certificate TLS_accept: SSLv3 write certificate A rlm_eap_tls: >>> TLS 1.0 Handshake [length 0004], ServerHelloDone TLS_accept: SSLv3 write server done A TLS_accept: SSLv3 flush data TLS_accept:error in SSLv3 read client certificate A However, during the "incorrect" re-authentication cycle, which has been started due to a packet loss in the middle as explained above, FreeRADIUS send the following packet: TLS_accept: before/accept initialization rlm_eap_tls: <<< TLS 1.0 Handshake [length 0067], ClientHello TLS_accept: SSLv3 read client hello A rlm_eap_tls: >>> TLS 1.0 Handshake [length 004a], ServerHello TLS_accept: SSLv3 write server hello A rlm_eap_tls: >>> TLS 1.0 ChangeCipherSpec [length 0001] TLS_accept: SSLv3 write change cipher spec A rlm_eap_tls: >>> TLS 1.0 Handshake [length 0010], Finished TLS_accept: SSLv3 write finished A TLS_accept: SSLv3 flush data TLS_accept:error in SSLv3 read finished A Note that this time FreeRADIUS has sent ChangeCipherSpec and Finished instead of Certificate and ServerHelloDone. Is this the normal and correct behavior? My Supplicant's response to this packet is then liked by the FreeRADIUS and its sends an alert. Could someone please help me understanding this problem. Thanks, Bilal _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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is this possible ?
by TK Lew 23 Sep '05

23 Sep '05

hi : I am not sure that anyone have done this before :: We have a customer using Steelbelt radius that forward accounting information to the freeradius server. We can receive the accounting packet and stored it successfully. But the problem is we have another application that will do a mapping from IP address to MSISDN. In order to do the mapping from IP to MSISDN , the application need to talk?? to a radius server that have the information (that means freeradius that receive the accounting packet). The flow is below :: handset --> authenticated successfully --> Steelbelt radius forward accounting packet to Freeradius and the application will the a lookup for MSISDN that match the IP address before allow the handset to use the services. Is this possible ?? The application managed to authenticate itself successfully with Freeradius but I just cannot send the matching MSISDN back to the application. I have tried to use the variable such as %{Calling-Station-Id} in the access-repky message but no values assign. Any helps ? Thanks

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RE: howto reset rlm_sqlcounter
by Bart van Daal 23 Sep '05

23 Sep '05

thanks for your reply Alan, I didn't mean the max-all-sessions value but the actual counter value. If a user has 15600seconds of online time ad is online for e.g. 3600 seconds, where do these 3600 seconds get stored with rlm_sqlcounter? thanks, kind regards, Bart van Daal -----Original Message----- From: Alan DeKok [mailto:aland@ox.org] Sent: donderdag 22 september 2005 19:36 To: FreeRadius users mailing list Subject: Re: howto reset rlm_sqlcounter Bart van Daal <B.Vandaal(a)edpnet.net> wrote: > two possible options I think of to reset the counter are: > 1. write a program to manipulate the gdbm file. Where is this file stored? If you're using rlm_sqlcounter, it's not in a GDBM file. It's in SQL. If you're using rlm_counter, the location of the GDBM file is set in the configuration file. > 2. keep adding the minutes to the allready existing value for the > session-time. You can't do that. Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

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howto reset rlm_sqlcounter
by Bart van Daal 22 Sep '05

22 Sep '05

Hi All, I'm authenticating users who can buy a specified amount of time to go online. I'm using the rlm_sqlcounter module with a reset=never option because there is no specified amount of time in which users have to use their minutes. A user can also buy additional minutes or when his minutes are depleted, a new subscription. two possible options I think of to reset the counter are: 1. write a program to manipulate the gdbm file. Where is this file stored? 2. keep adding the minutes to the allready existing value for the session-time. I was wondering if there was an 'easy' way to reset the counter for a user. thanks, kind regards, Bart van Daal Bart van Daal Network Operations Van Landeghemstraat 20 9100 SINT-NIKLAAS b.vandaal(a)edpnet.net www.edpnet.be T +32 (0)3 265 67 00 F +32 (0)3 265 67 01

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RE: choosing userprofile by NAS
by Jonathan De Graeve 22 Sep '05

22 Sep '05

I'm looking for the same thing but then with an SQL backend instead of LDAP J. -- Jonathan De Graeve Network/System Administrator Imelda vzw Informatica Dienst 015/50.52.98 jonathan.de.graeve(a)imelda.be --------- Always read the manual for the correct way to do things because the number of incorrect ways to do things is almost infinite --------- -----Oorspronkelijk bericht----- Van: freeradius-users-bounces(a)lists.freeradius.org [mailto:freeradius-users-bounces@lists.freeradius.org] Namens Florian Prester Verzonden: donderdag 22 september 2005 10:33 Aan: FreeRadius users mailing list Onderwerp: choosing userprofile by NAS Hi, how can I serve different information to the same user depending on the Huntgroup having all information stored in a LDAP-server? meaning: userA logging in NAS_A: receives IP-A supplied by LDAP userA logging in NAS_B: receives IP-B supplied by LDAP -- ---------------------------------------------------------- Dipl. Inf. Florian Prester Network Administration Regionales RechenZentrum Erlangen Universitaet Erlangen-Nuernberg Germany Tel.: +499131 8527813 - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

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Realm extraction
by Dmitry Alekhin 22 Sep '05

22 Sep '05

Hi all, I am new in free radius , so I have one question: How can I exctract Realm attribute in radiusd.conf name? So, I need to use it in LDAP filter to make search like : ldap { server = "localhost" identity = "uid=pr,ou=Staff,dc=domain,dc=com" password = secret basedn = "ou=People,dc=ivoho,dc=com" filter = "(uid=%{User-Name},ou=%{Realm-Name})" # base_filter = "(objectclass=radiusprofile)" ... how can I get Realm-Name variable ?

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Using NAS-Port-Type to allow or disallow?
by Martin.Ward＠uk.neceur.com 22 Sep '05

22 Sep '05

Hi all, I have succumbed and purchased the RADIUS book from O'Reilly, but it'll be a few days in coming so I going to have to bug you all again. I'm still having problems understanding if I can allow some users access to some equipment and others to other kit. I thought I could do it but I'm having real problems, probably with my lack of understanding... I have a wireless LAN switch which has access points ( APs ) connected to it. When a laptop first connects to an AP that AP sends a RADIUS request through the WLAN switch to the RADIUS server, passing the MAC address of the laptop as the User-Name and also as the User-Password. I have a simple flat file with all the allowed MAC addresses in it, and the passwd module is being used to verify that the MAC address is in that flat file. This works well. Now because the WLAN switch is configured to use RADIUS to authenticate laptops, it also uses it to authenticate logins to the switch itself, I haven't found a way around this and don't think there is one. This means that you can gain access to the WLAN switch by using the MAC address of your laptop as the user name and password, albeit with fairly high restrictions on what you can do. This is a security problem for two reasons: 1. Obviously anyone figuring this out can gain access to kit they should not have access to (there are other ways of stopping this, but you'll excuse me if I don't mention them here). 2. The proper administrators, and the default administration login itself, have to be put in to the flat file I mentioned above to allow the administrators access to the switch. The switch won't use its own internal user and password list. This causes another security breach as we would have to leave administrator logins and passwords lying around in flat files, which is extremely insecure and just begging to be broken. I have been trying to get administrator access to authenticate via the Unix module since the RADIUS server is on a Linux box. Alas I have been unable to get this to work. Investigation reveals that when the AP passes the RADIUS request in, the request sets 'NAS-Port-Type = Wireless-802.11' and the NAS-Port-ID to the correct port value, while when the switch requests a login to be authenticated the request contains 'NAS-Port-Type = Virtual', and doesn't have the NAS-Port-ID or NAS-Indentifier parameters set. So, it seems I have lots of information to help me define if a RADIUS request is coming from an access point (which requires MAC address validation) or from the switch (which requires login username and password validation), but I can't find a way of verifying via passwd OR Unix module, only via both. Is what I am after possible, or do I just not understand the way RADIUS servers work? |\/|artin -- Senior Network Administrator, NEC (Europe) Ltd. Acton extension: 3379 NEC*Net: 800-44-21-3379 Direct: +44 20 8752 3379 Fax: +44 20 8752 3389 Mobile: +44 7721 869 356

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