Commit graph

36 commits

Author SHA1 Message Date
Jouni Malinen
2d5b792d2b Add preliminary hostapd data structure initialization for AP mode
wpa_supplicant can now initialize hostapd data structures when mode=2 is
used to set up an AP. The hostapd configuration is not yet set based on
wpa_supplicant network configuration block. In addition, the glue code
for hostapd driver_ops needs number of functions that will be needed for
AP functionality.
2009-03-26 20:37:05 +02:00
Masashi Honma
e1ee6b600b WPS: Add support for NFC out-of-band mechanism
The new file wps_nfc.c and ndef.c implements NFC device independent
operation, wps_nfc_pn531.c implements NFC device dependent operation.

This patch is only for the following use case:
- Enrollee = wpa_supplicant
- Registrar = hostapd internal Registrar

Following NFC methods can be used:
- Enrollee PIN with NFC
- Registrar PIN with NFC
- unencrypted credential with NFC

Encrypted credentials are not supported.

Enrollee side operation:

Registrar side operation:

Example configuration.
CONFIG_WPS=y
CONFIG_WPS_NFC=y
CONFIG_WPS_NFC_PN531=y

I used NFC device "NXP PN531". The NFC device access method is
confidential, so I used outer library. Please download below files from
https://www.saice-wpsnfc.bz/index.php

[WPS NFC Library]
WpsNfcLibrary/WpsNfc.h
WpsNfcLibrary/WpsNfcType.h
WpsNfcLibrary/WpsNfcVersion.h
WpsNfcLibrary/linux/libnfc_mapping_pn53x.dll
WpsNfcLibrary/linux/wpsnfc.dll

[NFC Reader/Writer Kernel Driver]
NFCKernelDriver-1.0.3/linux/kobj/sonyrw.ko

<WiFi test>
The hostapd/wpa_supplicant with this patch passed below tests on
"Wi-Fi WPS Test Plan Version 1.6".
4.2.5 Add device using NFC Method with password token
(I used SONY STA instead of NXP STA.)

4.2.6 Add device using NFC Method with configuration token

5.1.9 Add to AP using NFC Method with password token
through internal registrar
(I used SONY AP instead of NXP AP.)

5.1.10 Add to AP using NFC Method with configuration token
through internal registrar
2009-03-06 16:16:22 +02:00
Jouni Malinen
7cc1b6c900 WPS: Add a workaround for TKIP/CCMP mixed mode credentials
Many deployed APs do not handle negotiation of security parameters well
when both TKIP and CCMP (or both WPA and WPA2) are enabled. The most
common end result seems to be ending up with the least secure option..

As a workaround, check whether the AP advertises WPA2/CCMP in Beacon
frames and add those options for the credential if needed. This allows
the client to select the most secure configuration regardless of how
broken the AP's WPS implementation is as far as auth/encr type
negotiation is concerned.
2009-03-05 21:39:39 +02:00
Jouni Malinen
116f7bb0a3 WPS UFD: Build OOB functionality only if UFD is enabled 2009-02-26 22:10:21 +02:00
Jouni Malinen
d5e2b2d274 WPS UFD: Use pre-configured DH keys only with OOB
The old behavior of generating new DH keys can be maintained for non-OOB
cases and only OOB (in this case, with UFD) will use the pre-configured
DH keys to allow the public key hash to be checked.
2009-02-26 22:09:35 +02:00
Jouni Malinen
7cbf51bbd8 WPS UFD: Remove oob_dev pointer from wps_context
This pointer and the especially the oob_dev->device_path does not remain
valid, so better not save it any longer than it is needed.
2009-02-26 22:07:55 +02:00
Masashi Honma
46bdb83acd WPS: Add UFD support (USBA out-of-band mechanism)
This patch is only for the following use case:
- Enrollee = wpa_supplicant
- Registrar = hostapd internal Registrar

Following UFD methods can be used:
- Enrollee PIN with UFD
- Registrar PIN with UFD
- unencrypted credential with UFD

Encrypted credentials are not supported.

Enrollee side operation:
wpa_cli -i ath0 wps_oob <device type> <mount point> <oob method>
    oob method = pin-e/pin-r/cred

wpa_cli -i ath0 wps_oob ufd /mnt/ pin-r

Registrar side operation:
./hostapd_cli -i ath0 wps_oob <device type> <mount point> <oob method>
    oob method = pin-e/pin-r/cred

hostapd_cli -i ath0 wps_oob ufd /mnt/ cred
2009-02-26 21:57:38 +02:00
Andriy Tkachuk
522b5b6ed3 WPS: Fix WEP key index to use 1..4 instead of 0..3
It seems that WFA WPS spec says that default key index should be 1 (not
0). I think this meas that WEP key indexes region is not from 0 to 3,
but from 1 to 4 in WPS. At least WRT610N implemented it this way.
2009-02-18 19:58:44 +02:00
Andriy Tkachuk
4b195a1bc9 WPS: support WEP keys in hex characters format in received credentials
Attached patch makes wpa_supplicant support WEP keys in hex characters
format in received credentials from Registrars (tested with WRT610N).
2009-02-17 10:30:43 +02:00
Jouni Malinen
3b2cf800af WPS: Lock AP Setup on multiple AP PIN validation failures
If a Registrar tries to configure the AP, but fails to validate the
device password (AP PIN), lock the AP setup after four failures. This
protects the AP PIN against brute force guessing attacks.
2009-01-23 21:57:43 +02:00
Jouni Malinen
a609915233 Allow WPS APs for PIN enrollment even without Selected Registrar
Some WPS APs do not set Selected Registrar attribute to 1 properly when
using an external Registrar. Allow such an AP to be selected for PIN
registration after couple of scan runs that do not find APs marked with
Selected Registrar = 1. This allows wpa_supplicant to iterate through
all APs that advertise WPS support without delaying connection with
implementations that set Selected Registrar = 1 properly.
2009-01-23 13:10:58 +02:00
Jouni Malinen
476621644c WPS: Add configurable option for processing credentials externally
The wps_cred_process option can be used to configure wpa_supplicant to
send received Credential attributes for external processing over
ctrl_iface and dbus. This allows external programs to update their
configuration when WPS is used to provision new networks.
2009-01-18 12:27:12 +02:00
Jouni Malinen
eca6e0a9a5 WPS: Provide the unparsed Credential attribute to cred_cb()
This makes it easier to pass the credential data to external programs
(e.g., Network Manager) for processing. The actual use of this data is
not yet included in hostapd/wpa_supplicant.
2009-01-17 22:17:12 +02:00
Jouni Malinen
f286077de2 WPS: Ignore credentials for unsupported authentication type
The current implementation does not support WPA/WPA2-Enterprise
credentials. Ignore any credential that is using unsupported
authentication type to avoid potential issues with partially configured
network blocks.
2009-01-17 21:45:51 +02:00
Jouni Malinen
7aab82b3fe Fixed WPS credential conversion to wpa_supplicant configuration
Must not set pairwise_cipher/group_cipher for non-WPA/WPA2 networks
since the configuration parser is going to reject such values. In
addition, should not limit group_cipher to just TKIP or TKIP|CCMP just
in case the AP is using WEP as the group cipher. Default group_cipher
value can be used for all cases.
2009-01-17 21:37:15 +02:00
Jouni Malinen
c5adf528a2 Moved WPS Registrar initialization from EAP peer to wps_supplicant.c
This matches the style used in hostapd, i.e., Registrar is initialized
only once and callbacks are now processed in wps_supplicant.c.
2009-01-03 20:18:35 +02:00
Jouni Malinen
f90c86d4a3 Added Doxygen documentation for WPS code 2009-01-03 19:50:49 +02:00
Jouni Malinen
79da74a20c WPS: Generate UUID based on MAC address, if not set
Generate a SHA1 hash -based UUID from the local MAC address if the UUID
was not configured. This makes it easier to prepare for WPS since there
is no need to generate an UUID.
2009-01-01 22:56:52 +02:00
Jouni Malinen
44cd430f87 Fixed PBC overlap detection to handle case of missing UUID-E
UUID-E is not required to be present in Beacon frame, so we need to
accept scan results that do not have UUID-E as a valid PBC situation as
long as not more than one AP is in active PBC mode.
2008-12-21 17:28:01 +02:00
Jouni Malinen
24c23d1b3c WPS: Added support for wildcard SSID matching in ap_scan=2 mode
Change association behavior to match with ap_scan=1 when WPS is used in
ap_scan=2 mode with wildcard SSID matching. In addition, allow hardcoded
BSSID to be used to select AP even if selected registrar attribute is
not present.
2008-12-20 22:55:02 +02:00
Jouni Malinen
ad5302a1ca WPS: Added event callback for successfully completed registration 2008-12-19 22:34:18 +02:00
Jouni Malinen
469fc3a41f WPS: Added callback for failure-after-M2/M2D
This callback is now used to stop wpa_supplicant from trying to continue
using parameters (most likely, device password) that do not work in a
loop. In addition, wpa_gui can now notify user of failed registration.
2008-12-19 22:19:41 +02:00
Jouni Malinen
4b68290e77 WPS: Added event callback and M2D notification
The event callback will be used for various event messages and the M2D
notification is the first such message. It is used to notify wpa_gui
about Registrar not yet knowing the device password (PIN).
2008-12-18 21:58:42 +02:00
Jouni Malinen
f0477201bd WPS: Fixed deinit code for freeing config and registrar data
We need to be a bit more careful when removing the WPS configuration
block since wpa_s->current_ssid may still be pointing at it. In
addition, registrar pointer in wps_context will need to be cleared
since the context data is now maintained over multiple EAP-WSC runs.
Without this, certain WPS operations could have used freed memory.
2008-12-18 01:06:06 +02:00
Jouni Malinen
ff8a53a8d7 Use a fixed wps_msg prefix with WPS creds notification 2008-12-15 22:32:45 +02:00
Jouni Malinen
a524f05eb3 WPS: Added control interface notification for available WPS APs
Whenever new scan results include WPS AP(s) and the client is not
associated, send a notification message to control interface monitors.
This makes it easier for GUIs to notify the user about possible WPS
availability without having to go through the scan results.
2008-12-15 20:09:57 +02:00
Jouni Malinen
484957ae6c Fixed memory leak in WPS PBC overlap detection 2008-12-15 19:50:53 +02:00
Jouni Malinen
3c0b7aa4fe Added configuration of WPS device parameters for wpa_supplicant 2008-12-13 17:20:46 +02:00
Jouni Malinen
351f09a221 WPS: Added support for fragmented WPS IE in Beacon and Probe Response
Fragment WPS IE if needed to fit into the IE length limits in hostapd
and Reassemble WPS IE data from multiple IEs in wpa_supplicant.

In addition, moved WPS code from events.c into wps_supplicant.c to clean
up module interfaces.
2008-11-29 22:06:34 +02:00
Jouni Malinen
fcc60db4eb WPS: Added wpa_supplicant ctrl_iface commands to start WPS processing
New control interface commands WPS_PBC, WPS_PIN, and WPS_REG can be used
to start WPS processing. These add and select the WPS network block into
the configuration temporarily, i.e., there is no need to add the WPS
network block manually anymore.
2008-11-29 20:59:45 +02:00
Jouni Malinen
b01c18a8ef WPS: Set Request Type properly into WPS IE in ProbeReq/AssocReq 2008-11-29 13:38:03 +02:00
Jouni Malinen
120bd30c34 WPS: Moved RF Bands processing into wps_dev_attr.c
This allows the RF Bands attribute to be configured and stored.
2008-11-29 12:59:43 +02:00
Jouni Malinen
398cfbf6be WPS: Moved mac_addr and uuid configuration into wps_context
There is no need to complicate EAPOL and EAP interfaces with WPS
specific parameters now that wps_context is passed through.
2008-11-28 20:44:47 +02:00
Jouni Malinen
116654ce24 WPS: Moved wps_context initialization into wps_supplicant.c
The wps_context data is now managed at wpa_supplicant, not EAP-WSC. This
makes wpa_supplicant design for WPS match with hostapd one and also
makes it easier configure whatever parameters and callbacks are needed
for WPS.
2008-11-28 20:32:13 +02:00
Jouni Malinen
bcbbc7af45 WPS: Merged two cred_cb variables into the same one
Previously, wpa_supplicant as Enrollee case was handled using a
different callback function pointer. However, now that the wps_context
structure is allocated for all cases, the same variable can be used in
all cases.
2008-11-28 20:02:32 +02:00
Jouni Malinen
fa201b694f WPS: Move WPS glue code from wpas_glue.c to wps_supplicant.c
This cleans up the internal interface between different modules and is
the first step in getting wpa_supplicant design closer to hostapd as far
as WPS is concerned.
2008-11-28 19:46:22 +02:00