Multiple instances of attribute in tunnelled reply
Hello everyone: I am using a freeradius-2.1.8, with eap-ttls mschap v2. I happen to get a problem that some attribute missing in the Access-Accept message, while it appears in the first Access-Challenge message. I still find that those attributes appear tunneled reply , i use the debug mode. Search the mail list , i find that similiar problem appears two years ago, here is the mail. Any suggestion is welcome, thanks a log sunhualing Hi, We formulate our reply inside of the virtual server dealing with EAP and send it back to the outer server. This is the only way I could think of to insert the Inner identity into the Access-Accept. It all works fine... however it seems there's a bug when dealing with multiple instances of the same attribute. For example: users / sql DEFAULT Service-Type == Framed-User, Realm == 'local', SS-Flags =~ "^.1........$" Tunnel-Type = VLAN, Tunnel-Medium-Type = IEEE-802, Tunnel-Private-Group-ID = 603, Reply-Message = "User %{%{Stripped-User-Name}:-%{User-Name}} authenticated for ResNet access on NAS:%{%{NAS-Identifier}:-Uknown NAS} SSID:%{%{Called-Station-SSID}:-none}.", HP-IP-FILTER-RAW = 'deny in 41 from any to any', HP-IP-FILTER-RAW += 'permit in ip from any to 10.0.8.1', HP-IP-FILTER-RAW += 'permit in ip from any to 10.0.8.2', HP-IP-FILTER-RAW += 'permit in ip from any to 10.0.8.3', HP-IP-FILTER-RAW += 'permit in ip from any to 10.0.8.4', HP-IP-FILTER-RAW += 'permit in ip from any to 10.0.8.5', Fall-Through = no Ends up being sent as the response: # server default-inner PEAP: Got tunneled reply RADIUS code 2 Service-Type = Framed-User Framed-MTU = 1480 Framed-Routing = None Framed-Protocol = PPP Framed-Compression = Van-Jacobson-TCP-IP Tunnel-Type:0 = VLAN Tunnel-Medium-Type:0 = IEEE-802 Tunnel-Private-Group-Id:0 = "603" Reply-Message = "User ac221 authenticated for ResNet access on NAS:hp-e-engg1-1-dev-8021x-sw1 SSID:none." HP-Ip-Filter-Raw = "deny in 41 from any to any" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.1" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.2" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.3" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.4" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.5" EAP-Message = 0x03490004 Message-Authenticator = 0x00000000000000000000000000000000 User-Name = "ac221" PEAP: Processing from tunneled session code 0x845cb10 2 Service-Type = Framed-User Framed-MTU = 1480 Framed-Routing = None Framed-Protocol = PPP Framed-Compression = Van-Jacobson-TCP-IP Tunnel-Type:0 = VLAN Tunnel-Medium-Type:0 = IEEE-802 Tunnel-Private-Group-Id:0 = "603" Reply-Message = "User ac221 authenticated for ResNet access on NAS:hp-e-engg1-1-dev-8021x-sw1 SSID:none." HP-Ip-Filter-Raw = "deny in 41 from any to any" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.1" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.2" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.3" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.4" HP-Ip-Filter-Raw = "permit in ip from any to 10.0.8.5" EAP-Message = 0x03490004 Message-Authenticator = 0x00000000000000000000000000000000 User-Name = "ac221" PEAP: Tunneled authentication was successful. rlm_eap_peap: SUCCESS Saving tunneled attributes for later So when it's actually used in the Access-Accept packet it appears as: Sending Access-Accept of id 173 to 139.184.8.16 port 1024 Service-Type = Framed-User Framed-MTU = 1480 Framed-Routing = None Framed-Protocol = PPP Framed-Compression = Van-Jacobson-TCP-IP Tunnel-Type:0 = VLAN Tunnel-Medium-Type:0 = IEEE-802 Tunnel-Private-Group-Id:0 = "603" HP-Ip-Filter-Raw = "deny in 41 from any to any" User-Name = "ac221@sussex.ac.uk" MS-MPPE-Recv-Key = 0xdec383f4a269cb3d8fcf59cd9e351971c3a9a3683a7c245144a0b852634c7a03 MS-MPPE-Send-Key = 0xb9f49bba9f9020deaa745c6ea0e8f5b92e72e2fc5b6465aed4a9231f10edd696 EAP-Message = 0x034a0004 Message-Authenticator = 0x00000000000000000000000000000000 Finished request 9. What's really weird is in the previous rounds of EAP, the attributes retain the += operator, it's only in the one where the EAP-Success message is returned where all the operators are stripped out. Relevant EAP bits: eap { ... ttls { ... copy_request_to_tunnel = yes use_tunneled_reply = yes virtual_server = "default-inner" } } Thanks, Arran
sunhualing wrote:
Hello everyone: I am using a freeradius-2.1.8, with eap-ttls mschap v2. I happen to get a problem that some attribute missing in the Access-Accept message, while it appears in the first Access-Challenge message. I still find that those attributes appear tunneled reply , i use the debug mode. Search the mail list , i find that similiar problem appears two years ago, here is the mail. Any suggestion is welcome, thanks a log
Hmm... the fix is likely to edit the source code of the PEAP module. I'll take a look at it for 2.1.9. Alan DeKok.
Hi Alan DeKok: Are you sure it is the PEAP module,not the TTLS module? why? And when will the 2.1.9 be released? thank you very much! sunhualing On Wed, Apr 14, 2010 at 10:59 AM, Alan DeKok <aland@deployingradius.com>wrote:
sunhualing wrote:
Hello everyone: I am using a freeradius-2.1.8, with eap-ttls mschap v2. I happen to get a problem that some attribute missing in the Access-Accept message, while it appears in the first Access-Challenge message. I still find that those attributes appear tunneled reply , i use the debug mode. Search the mail list , i find that similiar problem appears two years ago, here is the mail. Any suggestion is welcome, thanks a log
Hmm... the fix is likely to edit the source code of the PEAP module. I'll take a look at it for 2.1.9.
Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
Thanks very much, I wish that the version 2.1.9 will be released soon. Sunhualing On Wed, Apr 14, 2010 at 3:02 PM, Alan DeKok <aland@deployingradius.com>wrote:
sunhualing wrote:
Hi Alan DeKok: Are you sure it is the PEAP module,not the TTLS module? why? And when will the 2.1.9 be released? thank you very much!
They both have the same code, and they both should be fixed.
Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
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