Automatic regression and interoperability testing of wpa_supplicant's
IEEE 802.1X/EAPOL authentication

Test program:
- Linked some parts of IEEE 802.1X Authenticator implementation from
  hostapd (RADIUS client and RADIUS processing, EAP<->RADIUS
  encapsulation/decapsulation) into wpa_supplicant.
- Replaced wpa_supplicant.c and wpa.c with test code that trigger
  IEEE 802.1X authentication automatically without need for wireless
  client card or AP.
- For EAP methods that generate keying material, the key derived by the
  Supplicant is verified to match with the one received by the (now
  integrated) Authenticator.

The full automated test suite can now be run in couple of seconds, but
I'm more than willing to add new RADIUS authentication servers to make
this take a bit more time.. ;-) As an extra bonus, this can also be
seen as automatic regression/interoperability testing for the RADIUS
server, too.

In order for me to be able to use a new authentication server, the
server need to be available from Internet (at least from one static IP
address) and I will need to get suitable user name/password pairs,
certificates, and private keys for testing use. Other alternative
would be to get an evaluation version of the server so that I can
install it on my own test setup. If you are interested in providing
either server access or evaluation version, please contact me
(j@w1.fi).


Test matrix

+) tested successfully
F) failed
-) server did not support
?) not tested

Cisco ACS ----------------------------------------------------------.
hostapd --------------------------------------------------------.   |
Cisco Aironet 1200 AP (local RADIUS server) ----------------.   |   |
Periodik Labs Elektron ---------------------------------.   |   |   |
Lucent NavisRadius ---------------------------------.   |   |   |   |
Interlink RAD-Series ---------------------------.   |   |   |   |   |
Radiator -----------------------------------.   |   |   |   |   |   |
Meetinghouse Aegis ---------------------.   |   |   |   |   |   |   |
Funk Steel-Belted ------------------.   |   |   |   |   |   |   |   |
Funk Odyssey -------------------.   |   |   |   |   |   |   |   |   |
Microsoft IAS --------------.   |   |   |   |   |   |   |   |   |   |
FreeRADIUS -------------.   |   |   |   |   |   |   |   |   |   |   |
			|   |   |   |   |   |   |   |   |   |   |   |

EAP-MD5			+   -   -   +   +   +   +   +   -   -   +   +
EAP-GTC			+   -   -   ?   +   +   +   +   -   -   +   -
EAP-OTP			-   -   -   -   -   +   -   -   -   -   -   -
EAP-MSCHAPv2		+   -   -   +   +   +   +   +   -   -   +   -
EAP-TLS			+   +   +   +   +   +   +   +   -   -   +   +
EAP-PEAPv0/MSCHAPv2	+   +   +   +   +   +   +   +   +   -   +   +
EAP-PEAPv0/GTC		+   -   +   -   +   +   +   +   -   -   +   +
EAP-PEAPv0/OTP		-   -   -   -   -   +   -   -   -   -   -   -
EAP-PEAPv0/MD5		+   -   -   +   +   +   +   +   -   -   +   -
EAP-PEAPv0/TLS		-   +   -   +   +   +   F   +   -   -   -   -
EAP-PEAPv1/MSCHAPv2	-   -   +   +   +   +1  +   +5  +8  -   +   +
EAP-PEAPv1/GTC		-   -   +   +   +   +1  +   +5  +8  -   +   +
EAP-PEAPv1/OTP		-   -   -   -   -   +1  -   -   -   -   -   -
EAP-PEAPv1/MD5		-   -   -   +   +   +1  +   +5  -   -   +   -
EAP-PEAPv1/TLS		-   -   -   +   +   +1  F   +5  -   -   -   -
EAP-TTLS/CHAP		+   -   +2  +   +   +   +   +   +   -   +   -
EAP-TTLS/MSCHAP		+   -   +   +   +   +   +   +   +   -   +   -
EAP-TTLS/MSCHAPv2	+   -   +   +   +   +   +   +   +   -   +   -
EAP-TTLS/PAP		+   -   +   +   +   +   +   +   +   -   +   -
EAP-TTLS/EAP-MD5	+   -   +2  +   +   +   +   +   +   -   +   -
EAP-TTLS/EAP-GTC	+   -   +2  ?   +   +   +   +   -   -   +   -
EAP-TTLS/EAP-OTP	-   -   -   -   -   +   -   -   -   -   -   -
EAP-TTLS/EAP-MSCHAPv2	+   -   +2  +   +   +   +   +   +   -   +   -
EAP-TTLS/EAP-TLS	-   -   +2  +   F   +   +   +   -   -   -   -
EAP-SIM			+3  -   -   ?   -   +   -   ?   -   -   +   -
EAP-AKA			-   -   -   -   -   +   -   -   -   -   +   -
EAP-PSK			+7  -   -   -   -   -   -   -   -   -   +   -
EAP-PAX			-   -   -   -   -   -   -   -   -   -   +   -
EAP-SAKE		-   -   -   -   -   -   -   -   -   -   +   -
EAP-GPSK		-   -   -   -   -   -   -   -   -   -   +   -
EAP-FAST		-   -   -   +   -   -   -   -   -   +   -   +
LEAP			+   -   +   +   +   +   F   +6  -   +   -   +

1) PEAPv1 required new label, "client PEAP encryption" instead of "client EAP
   encryption", during key derivation (requires phase1="peaplabel=1" in the
   network configuration in wpa_supplicant.conf)
2) used FreeRADIUS as inner auth server
3) required a patch to FreeRADIUS to fix EAP-SIM
5) PEAPv1 required termination of negotiation on tunneled EAP-Success and new
   label in key deriviation
   (phase1="peap_outer_success=0 peaplabel=1") (in "IETF Draft 5" mode)
6) Authenticator simulator required patching for handling Access-Accept within
   negotiation (for the first EAP-Success of LEAP)
7) EAP-PSK is not included in FreeRADIUS distribution; used external
   rlm_eap_psk implementation from
   http://perso.rd.francetelecom.fr/bersani/EAP_PSK/
	EAP-PSKWindowsimplementations.html
8) PEAPv1 used non-standard version negotiation (client had to force v1 even
   though server reported v0 as the highest supported version)


Automated tests:

FreeRADIUS (1.0pre and CVS snapshot)
- EAP-MD5-Challenge
- EAP-GTC
- EAP-MSCHAPv2
- EAP-TLS
- EAP-PEAPv0 / MSCHAPv2
- EAP-PEAPv0 / GTC
- EAP-PEAPv0 / MD5-Challenge
- EAP-TTLS / EAP-MD5-Challenge
- EAP-TTLS / EAP-GTC
- EAP-TTLS / EAP-MSCHAPv2
- EAP-TTLS / CHAP
- EAP-TTLS / PAP
- EAP-TTLS / MSCHAP
- EAP-TTLS / MSCHAPv2
- EAP-SIM
* not supported in FreeRADIUS
  - EAP-PEAP / TLS (Unable to tunnel TLS inside of TLS)
  - EAP-TTLS / EAP-TLS (Unable to tunnel TLS inside of TLS)

Microsoft Windows Server 2003 / IAS
- EAP-TLS
- EAP-PEAPv0 / MSCHAPv2
- EAP-PEAPv0 / TLS
- EAP-MD5
* IAS does not seem to support other EAP methods

Funk Odyssey 2.01.00.653
- EAP-TLS
- EAP-PEAPv0 / MSCHAPv2
- EAP-PEAPv0 / GTC
- EAP-PEAPv1 / MSCHAPv2
- EAP-PEAPv1 / GTC
  Note: PEAPv1 requires TLS key derivation to use label "client EAP encryption"
- EAP-TTLS / CHAP (using FreeRADIUS as inner auth srv)
- EAP-TTLS / MSCHAP
- EAP-TTLS / MSCHAPv2
- EAP-TTLS / PAP
- EAP-TTLS / EAP-MD5-Challenge (using FreeRADIUS as inner auth srv)
- EAP-TTLS / EAP-GTC (using FreeRADIUS as inner auth srv)
- EAP-TTLS / EAP-MSCHAPv2 (using FreeRADIUS as inner auth srv)
- EAP-TTLS / EAP-TLS (using FreeRADIUS as inner auth srv)
* not supported in Odyssey:
  - EAP-MD5-Challenge
  - EAP-GTC
  - EAP-MSCHAPv2
  - EAP-PEAP / MD5-Challenge
  - EAP-PEAP / TLS

Funk Steel-Belted Radius Enterprise Edition v4.71.739
- EAP-MD5-Challenge
- EAP-MSCHAPv2
- EAP-TLS
- EAP-PEAPv0 / MSCHAPv2
- EAP-PEAPv0 / MD5
- EAP-PEAPv0 / TLS
- EAP-PEAPv1 / MSCHAPv2
- EAP-PEAPv1 / MD5
- EAP-PEAPv1 / GTC
- EAP-PEAPv1 / TLS
  Note: PEAPv1 requires TLS key derivation to use label "client EAP encryption"
- EAP-TTLS / CHAP
- EAP-TTLS / MSCHAP
- EAP-TTLS / MSCHAPv2
- EAP-TTLS / PAP
- EAP-TTLS / EAP-MD5-Challenge
- EAP-TTLS / EAP-MSCHAPv2
- EAP-TTLS / EAP-TLS

Meetinghouse Aegis 1.1.4
- EAP-MD5-Challenge
- EAP-GTC
- EAP-MSCHAPv2
- EAP-TLS
- EAP-PEAPv0 / MSCHAPv2
- EAP-PEAPv0 / TLS
- EAP-PEAPv0 / GTC
- EAP-PEAPv0 / MD5-Challenge
- EAP-PEAPv1 / MSCHAPv2
- EAP-PEAPv1 / TLS
- EAP-PEAPv1 / GTC
- EAP-PEAPv1 / MD5-Challenge
  Note: PEAPv1 requires TLS key derivation to use label "client EAP encryption"
- EAP-TTLS / CHAP
- EAP-TTLS / MSCHAP
- EAP-TTLS / MSCHAPv2
- EAP-TTLS / PAP
- EAP-TTLS / EAP-MD5-Challenge
- EAP-TTLS / EAP-GTC
- EAP-TTLS / EAP-MSCHAPv2
* did not work
  - EAP-TTLS / EAP-TLS
    (Server rejects authentication without any reason in debug log. It
     looks like the inner TLS negotiation starts properly and the last
     packet from Supplicant looks like the one sent in the Phase 1. The
     server generates a valid looking reply in the same way as in Phase
     1, but then ends up sending Access-Reject. Maybe an issue with TTLS
     fragmentation in the Aegis server(?) The packet seems to include
     1328 bytes of EAP-Message and this may go beyond the fragmentation
     limit with AVP encapsulation and TLS tunneling. Note: EAP-PEAP/TLS
     did work, so this issue seems to be with something TTLS specific.)

Radiator 3.9 (eval, with all patches up to and including 2004-08-30)
- EAP-MD5-Challenge
- EAP-GTC
- EAP-OTP
- EAP-MSCHAPv2
- EAP-TLS
- EAP-PEAPv0 / MSCHAPv2
- EAP-PEAPv0 / GTC
- EAP-PEAPv0 / OTP
- EAP-PEAPv0 / MD5-Challenge
- EAP-PEAPv0 / TLS
  Note: Needed to use unknown identity in outer auth and some times the server
	seems to get confused and fails to send proper Phase 2 data.
- EAP-PEAPv1 / MSCHAPv2
- EAP-PEAPv1 / GTC
- EAP-PEAPv1 / OTP
- EAP-PEAPv1 / MD5-Challenge
- EAP-PEAPv1 / TLS
  Note: This has some additional requirements for EAPTLS_MaxFragmentSize.
        Using 1300 for outer auth and 500 for inner auth seemed to work.
  Note: Needed to use unknown identity in outer auth and some times the server
	seems to get confused and fails to send proper Phase 2 data.
- EAP-TTLS / CHAP
- EAP-TTLS / MSCHAP
- EAP-TTLS / MSCHAPv2
- EAP-TTLS / PAP
- EAP-TTLS / EAP-MD5-Challenge
- EAP-TTLS / EAP-GTC
- EAP-TTLS / EAP-OTP
- EAP-TTLS / EAP-MSCHAPv2
- EAP-TTLS / EAP-TLS
  Note: This has some additional requirements for EAPTLS_MaxFragmentSize.
        Using 1300 for outer auth and 500 for inner auth seemed to work.
- EAP-SIM
- EAP-AKA

Interlink Networks RAD-Series 6.1.2.7
- EAP-MD5-Challenge
- EAP-GTC
- EAP-MSCHAPv2
- EAP-TLS
- EAP-PEAPv0 / MSCHAPv2
- EAP-PEAPv0 / GTC
- EAP-PEAPv0 / MD5-Challenge
- EAP-PEAPv1 / MSCHAPv2
- EAP-PEAPv1 / GTC
- EAP-PEAPv1 / MD5-Challenge
  Note: PEAPv1 requires TLS key derivation to use label "client EAP encryption"
- EAP-TTLS / CHAP
- EAP-TTLS / MSCHAP
- EAP-TTLS / MSCHAPv2
- EAP-TTLS / PAP
- EAP-TTLS / EAP-MD5-Challenge
- EAP-TTLS / EAP-GTC
- EAP-TTLS / EAP-MSCHAPv2
- EAP-TTLS / EAP-TLS
* did not work
  - EAP-PEAPv0 / TLS
  - EAP-PEAPv1 / TLS
    (Failed to decrypt Phase 2 data)

Lucent NavisRadius 4.4.0
- EAP-MD5-Challenge
- EAP-GTC
- EAP-MSCHAPv2
- EAP-TLS
- EAP-PEAPv0 / MD5-Challenge
- EAP-PEAPv0 / MSCHAPv2
- EAP-PEAPv0 / GTC
- EAP-PEAPv0 / TLS
- EAP-PEAPv1 / MD5-Challenge
- EAP-PEAPv1 / MSCHAPv2
- EAP-PEAPv1 / GTC
- EAP-PEAPv1 / TLS
  "IETF Draft 5" mode requires phase1="peap_outer_success=0 peaplabel=1"
  'Cisco ACU 5.05' mode works without phase1 configuration
- EAP-TTLS / CHAP
- EAP-TTLS / MSCHAP
- EAP-TTLS / MSCHAPv2
- EAP-TTLS / PAP
- EAP-TTLS / EAP-MD5-Challenge
- EAP-TTLS / EAP-MSCHAPv2
- EAP-TTLS / EAP-GTC
- EAP-TTLS / EAP-TLS

Note: user certificate from NavisRadius had private key in a format
that wpa_supplicant could not use. Converting this to PKCS#12 and then
back to PEM allowed wpa_supplicant to use the key.


hostapd v0.3.3
- EAP-MD5-Challenge
- EAP-GTC
- EAP-MSCHAPv2
- EAP-TLS
- EAP-PEAPv0 / MSCHAPv2
- EAP-PEAPv0 / GTC
- EAP-PEAPv0 / MD5-Challenge
- EAP-PEAPv1 / MSCHAPv2
- EAP-PEAPv1 / GTC
- EAP-PEAPv1 / MD5-Challenge
- EAP-TTLS / CHAP
- EAP-TTLS / MSCHAP
- EAP-TTLS / MSCHAPv2
- EAP-TTLS / PAP
- EAP-TTLS / EAP-MD5-Challenge
- EAP-TTLS / EAP-GTC
- EAP-TTLS / EAP-MSCHAPv2
- EAP-SIM
- EAP-PAX

Cisco Secure ACS 3.3(1) for Windows Server
- PEAPv1/GTC worked, but PEAPv0/GTC failed in the end after password was
  sent successfully; ACS is replying with empty PEAP packet (TLS ACK);
  wpa_supplicant tries to decrypt this.. Replying with TLS ACK and and
  marking the connection completed was enough to make this work.


PEAPv1:

Funk Odyssey 2.01.00.653:
- uses tunneled EAP-Success, expects reply in tunnel or TLS ACK, sends MPPE
  keys with outer EAP-Success message after this
- uses label "client EAP encryption"
- (peap_outer_success 1 and 2 work)

Funk Steel-Belted Radius Enterprise Edition v4.71.739
- uses tunneled EAP-Success, expects reply in tunnel or TLS ACK, sends MPPE
  keys with outer EAP-Success message after this
- uses label "client EAP encryption"
- (peap_outer_success 1 and 2 work)

Radiator 3.9:
- uses TLV Success and Reply, sends MPPE keys with outer EAP-Success message
  after this
- uses label "client PEAP encryption"

Lucent NavisRadius 4.4.0 (in "IETF Draft 5" mode):
- sends tunneled EAP-Success with MPPE keys and expects the authentication to
  terminate at this point (gets somewhat confused with reply to this)
- uses label "client PEAP encryption"
- phase1="peap_outer_success=0 peaplabel=1"

Lucent NavisRadius 4.4.0 (in "Cisco ACU 5.05" mode):
- sends tunneled EAP-Success with MPPE keys and expects to receive TLS ACK
  as a reply
- uses label "client EAP encryption"

Meetinghouse Aegis 1.1.4
- uses tunneled EAP-Success, expects reply in tunnel or TLS ACK, sends MPPE
  keys with outer EAP-Success message after this
- uses label "client EAP encryption"
- peap_outer_success 1 and 2 work