Commit graph

184 commits

Author SHA1 Message Date
Jouni Malinen
5890fa81d8 WPS: Fix clear-from-timeout handling to avoid race condition
The 100 ms timeout to clear WPS state after EAP-Failure has been
received worked otherwise fine, but it opened a race condition on
another WPS operation starting within that wait. If that happens, the
timeout will cancel that new operation unexpectedly. Fix this by
cancelling the timeout from wpas_clear_wps().

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-01 22:00:09 +02:00
Jouni Malinen
c5838683a8 Mark wpas_wps_er_nfc_handover_sel() static
This is not used outside wps_supplicant.c.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-31 19:37:15 +02:00
Jouni Malinen
0187c41d88 Declare wpa_debug_* variables in src/utils/wpa_debug.h
These were somewhat more hidden to avoid direct use, but there are now
numerous places where these are needed and more justification to make
the extern int declarations available from wpa_debug.h. In addition,
this avoids some warnings from sparse.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-31 19:29:52 +02:00
Jouni Malinen
ef93abded7 WPS: Clean up UUID debug print
Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-30 23:35:48 +02:00
Jouni Malinen
3187fd900d WPS: Replace wpas_wps_in_progress with identical wpas_wps_searching
There is no point in maintaining two different functions that do
practically the same check of WPS state.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-29 17:59:12 +02:00
Jouni Malinen
c511b321f3 WPS: Remove old duplicate network even if key is different
Previously, WPS credential provisioning removed duplicated network
entries only if they had identicical SSID, security parameters, and the
keys. However, it is possible that the AP has changes its keys and
leaving the old entry behind can result in connectibity issues (e.g.,
with 4-way handshake failing due to use of the old PSK). Fix this by
allowing the old network entry to be removed even if the keys
(passphrase, PSK, WEP keys) are different.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-12-26 20:50:28 +02:00
Johannes Berg
51bffab117 WPS: Use monotonic time for AP connection attempt
This is only used for a debug message, but that message prints
the time since the last attempt, so it should use monotonic
time instead of wall clock.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-24 08:19:47 +02:00
Jithu Jance
1cba9bea96 STA: Cancel sched_scan while initiating wps_reassoc
Scan initiated from wps_nfc command context was ketp on
getting rescheduled due to an on-going scheduled scan. So
cancel sched_scan before issuing a reassociation scan.

Signed-hostap: Jithu Jance <jithu@broadcom.com>
2013-11-20 22:28:28 +02:00
Jouni Malinen
4d9fb08d23 WPS: Clear known_wps_freq in addition to after_wps
Both of these variables can result in optimized WPS scans, so better
clear these more consistently to avoid unexpected single-channel scans.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-10-27 12:56:56 +02:00
Jouni Malinen
7255983b59 WPS: Clear after_wps from number of new locations
This makes it less likely to forget WPS single-channel scan optimization
in effect after having completed the WPS operation or in case WPS
operating gets cancelled.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-10-20 21:38:02 +03:00
Jithu Jance
7e910b7b51 WPS NFC: Cancel scheduled scan before attempting a scan
Cancel scheduled scan (if any) before attempting to scan for the newly
received configuration/credential in WPS NFC Config token case.

Signed-hostap: Jithu Jance <jithu@broadcom.com>
2013-10-14 20:42:27 +03:00
Jouni Malinen
52177fbb70 P2P: Store P2P Device Address in per-device PSK records
This makes the P2P Device Address of the Enrollee available with the PSK
records to allow P2P Device Address instead of P2P Interface Address to
be used for finding the correct PSK.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-09-01 10:47:34 +03:00
David Spinadel
239abaf2ab WPS: Set currently used RF band in RF Bands attribute
According to WSC specification (Ver 2.0.2, section 8.3), RF Bands
attribute should be set to the specific RF band used for the current
message. Add an option to set wanted band in wps_build_rf_bands() and
add a callback to get the current band from wpa_supplicant and hostapd.

Signed-hostap: David Spinadel <david.spinadel@intel.com>
2013-08-25 10:55:53 +03:00
Jouni Malinen
2e145e91e7 WPS: Fix failure path to allow WSC_NACK and EAP-Failure to be exchanged
Commit c7a67a7719 forced disconnection
when wpas_clear_wps() is called. Call this function from a registered
timeout when processing a failure event in order to allow the WPS
handshake to be completed with WSC_NACK and EAP-Failure.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-08-23 17:49:01 +03:00
Jeffin Mammen
50396e29da WPS: Add PBC mode activated/disabled events
This makes it easier to track PBC state on the registrar.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-08-23 16:52:48 +03:00
Jouni Malinen
961750c1e8 WPS: Share a common function for error strings
This makes it easier to maintain the list of WPS_EI_* error values and
matching strings.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-08-23 16:32:34 +03:00
Junli Zhao
c7a67a7719 WPS: Disconnect when removing existing WPS network block
wpas_clear_wps() was just clearing the current wpa_s->current_ssid
pointer when removing a WPS network block which with the device was
associated. This could leave the association up even though the network
block had already been removed. Prevent this by explicitly disconnecting
from the network instead of such clearing current_ssid.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-07-08 12:09:18 +03:00
Jouni Malinen
f3e907a745 WPS: Clear connection failure counts on WPS success
The WPS provisioning case does not result in successful connection by
design and as such, this can result in networks getting temporarily
disabled. Avoid this by clearing the failure counts on WPS success.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-05-15 17:33:50 +03:00
Jouni Malinen
170f5663dc WPS NFC: Connect using learnt credential after NFC Tag read
Instead of just adding the new network, prefer the network learnt from a
configuration token during the first connection attempt. This makes the
WPS NFC case behave similarly to the in-band provisioning cases if there
are more preferred networks in the scan results.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-05-15 16:46:45 +03:00
Vinayak Kamath
741ed9fc25 WPS: Remove duplicate networks after WPS
Each attempt to connect to the same network using WPS would result
in the duplicate configuration getting added. Avoid such redundant
additions by comparing the network configuration with an already
existing one and remove the older network if the new credential
provisioned through WPS is identical.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-04-30 13:35:50 +03:00
Jouni Malinen
88c8bf311e WPS NFC: Allow configuration token to be built from network block
"WPS_NFC_CONFIG_TOKEN <WPS/NDEF> <network id>" can now be used to build
an NFC configuration token from a locally configured network.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-04-01 21:28:57 +03:00
Jouni Malinen
e205401c72 WPS ER: Allow Enrollee to be specified with MAC address
wps_er_pbc and wps_er_pin can now be used with both the UUID and MAC
Address of the Enrollee.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-04-01 20:52:44 +03:00
Jouni Malinen
59307b3007 WPS ER: Allow AP to be specified with BSSID
This extends the WPS ER commands that previously accepted only UUID as
an identifier for an AP to use either UUID or BSSID for this.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-04-01 20:32:09 +03:00
Jouni Malinen
5c9d63d46f WPS: Be more careful with pre-configured DH parameters
Make the implementation more robust against error cases with
pre-configured DH parameters.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-04-01 19:27:32 +03:00
Masashi Honma
97236cee6a WPS: Skip rescanning after provisioning if AP was configured
If WPS provisioning step is completed with an AP that is in WPS
configured state, we can skip a second scan after the provisioning step
since the AP is unlikely to change its configuration in such a case.
This can speed up WPS connection a bit by removing an unneeded scan.

Signed-hostap: Masashi Honma <masashi.honma@gmail.com>
2013-03-31 20:06:42 +03:00
Jouni Malinen
9599ccc2dd WPS: Clear after_wps on new WPS connection
The after_wps counter could have potentially be left in its old non-zero
value in some WPS sequences which could result in a single-channel scan
being used based on obsolete information. Clear after_wps in
wpas_wps_reassoc() to make sure this does not happen.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-03-31 18:05:42 +03:00
Jouni Malinen
702621e6dd WPS: Use latest updated BSS entry if multiple BSSID matches found
If the AP (P2P GO) has changes its channel of SSID recently, the BSS
table may have multiple entries for a BSSID. Select the one which was
most recently updated for WPS/P2P operations in such case to increase
the likelihood of using current information.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-03-31 18:05:42 +03:00
Jouni Malinen
94d7acf3df WPS NFC: Fix build without CONFIG_WPS_ER
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-03-13 00:02:52 +02:00
Jouni Malinen
f3f2ba2e6e WPS NFC: Add connection handover support for ER
wpa_supplicant can now generate the WPS carrier record for connection
handover response when acting as an ER. The AP whose configuration is
provided in this way is identified with an UUID as an argument to
wps-nfc.py.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-24 10:56:29 +02:00
Jouni Malinen
5ab9a6a53e WPS: Add support for NFC handover select generation with wpa_supplicant
When wpa_supplicant is controlling an AP mode interface, it can generate
the alternative carrier record for NFC connection handover select
message similarly to the way this is done in hostapd.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-15 12:34:55 +02:00
Jouni Malinen
bbf41865c9 WPS: Add support for config token generation with wpa_supplicant
When wpa_supplicant is controlling an AP mode interface, it can generate
the NFC configuration token similarly to the way this is done in
hostapd.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-15 11:47:52 +02:00
Jouni Malinen
042ec551d4 WPS: Use pre-configured NFC password token instead of overriding it
"WPS_NFC_TOKEN <WPS/NDEF>" used to generate a new NFC password token
regardless of whether there was a pre-configured token in the
configuration. Change this to use the pre-configured value, if
available, instead. This allows the same command to be used to write the
password token to an NFC tag more conveniently.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-15 11:24:29 +02:00
Jouni Malinen
e47588279a WPS: Report NFC connection handover completion differently
Instead of reporting only one connection handover message, report
completion of NFC connection handover with carrier record from both the
request and select messages.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-11 18:43:46 +02:00
Jouni Malinen
bbaaaee171 WPS: Fetch only the carrier record from wpa_supplicant for NFC
Since there could be multiple carrier records, it is cleaner to build
only the WPS carrier record instead of full NFC connection handover
request within wpa_supplicant.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-02-10 18:19:59 +02:00
Jouni Malinen
9c75e9fb81 WPS: Verify wpa_config_set() return value more consistently
Even though this command is very unlikely to fail, in theory, it could
and the WPS connection would fail in such a case. Return more clearer
failure indication in such a case without even trying to start
reassociation.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:53 +02:00
Jouni Malinen
318e772ad1 WPS: Update configuration file after re-enabling networks
Network blocks are disabled during a WPS provisioning step and 10
seconds after this to allow the newly provisioned network to be
selected. The disabled=1 flag gets written to the configuration file
when the credential is added since it happens during this process.
Update the file again after the networks have been re-enabled to avoid
leaving the configuration file into state that is not consistent with
the running configuration.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-12-21 20:11:26 +02:00
Sunil Dutt
6fbcbc07e4 WPS: Optimize post-WPS scan even if EAP-Failure is not received
Commit 17a4734dc4 shall optimize the
post-WPS scan based on the channel used during the provisioning only
when the EAP-Failure frame is received. In cases where the EAP-Failure
frame is missed, this optimization shall not happen resulting in the
scan in all the channels thus consuming more time for the connection.
This commit enhances this by storing the requisite information after
the M8 frame is received.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-12-21 15:30:39 +02:00
Jouni Malinen
207fb86411 WPS: Remove deprecated UFD config method and OOB ctrl_iface
The UFD (USB flash drive) configuration method was deprecated in WSC
2.0. Since this is not known to be used, remove the UFD implementation
from hostapd and wpa_supplicant to allow the WPS implementation to be
cleaned up. This removes the now unused OOB operations and ctrl_iface
commands that had already been deprecated by the new NFC operations.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-11 13:01:06 +02:00
Jouni Malinen
b363121a20 WPS: Reject invalid credential more cleanly
If WPS Registrar tries to provision a WPA/WPA2-Personal network without
including a valid Network Key, the network block cannot be used to
connect to the network. Reject such credential without adding the
network block. This makes wpa_supplicant send WSC_NACK as a response to
the invalid Credential and stop the provisioning process immediately
rather than only after trying unsuccessfully to connect to the network.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-01 16:30:35 +02:00
Jouni Malinen
9f36eac6e5 WPS: Remove old OOB NFC interface
The old WPS interface for using NFC has no known deployments and even
the binary libraries referenced here are not easily available anymore.
Since the new interface for using NFC with WPS covers the same
functionality, remove the old implementation to clean up WPS
implementation.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-10-28 18:20:03 +02:00
Jouni Malinen
bd3a373767 WPS: Use AP Channel attribute in credential to speed up scan
When WPS is used with NFC connection handover, the AP may indicate its
operating channel within the credential information. Use this
informatiom, if present, to speed up the scan process.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-10-28 18:02:04 +02:00
Jouni Malinen
e65552ddf2 WPS: Add preliminary NFC connection handover support for Enrollee
This commit adds new wpa_supplicant ctrl_iface commands to allow
external programs to go through NFC connection handover mechanism
with wpa_supplicant taking care of the WPS processing. This version
includes only the case where wpa_supplicant is operating as a
station/Enrollee.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-10-28 17:39:46 +02:00
Sunil Dutt
ec947ffcd8 WPS: Reenable the networks disabled during wpa_wpas_reassoc
During the association for the WPS handshake all the other configured
networks are disabled. This patch makes wpa_supplicant reenable the
disabled networks after the success/failure of the WPS handshake.

Signed-hostap: Sunil Dutt Undekari <duttus@codeaurora.org>
2012-10-04 21:11:04 +03:00
Masashi Honma
6df865face Remove unused function warning in WPS NFC case
When I use CONFIG_WPS_NFC=y a warning appears.

wps_supplicant.c:1872:12: warning: 'wpas_wps_add_nfc_password_token'
defined but not used [-Wunused-function]

This patch removes this warning.

Signed-hostap: Masashi Honma <masashi.honma at gmail.com>
2012-09-15 22:02:09 -07:00
Jouni Malinen
620c783753 Use BSS entries instead of scan results for BSS selection
This allows the BSS selection functions to be called without having the
scan result data structure. This can be used to skip extra scans in
cases where previous results can be considered fresh.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-02 19:56:57 +03:00
Jouni Malinen
a462036a47 WPS: Allow AP that becomes active be tried immediately
Clear the possible blacklisting of a WPS AP during WPS PIN iteration if
the AP moves to selected registrar TRUE state or if it adds our MAC
address to the list of authorized MACs.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-27 13:51:35 +03:00
Jouni Malinen
f9f0526bcd WPS: Maintain more AP state during WPS PIN iteration
Maintain state of WPS APs during iteration to find the correct AP for
WPS PIN operation when no specific BSSID is specified. This information
can be used for optimizing the order in which the APs are tried. This
commit is only adding the collection of the information and more
detailed debug information to make debug logs more helpful in figuring
out how the AP selection order could be improved.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-27 13:48:11 +03:00
Jouni Malinen
00e5e3d509 Disable network block temporarily on authentication failures
If 4-way handshake fails due to likely PSK failure or if EAP
authentication fails, disable the network block temporarily. Use longer
duration if multiple consecutive failures are seen.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-26 23:35:07 +03:00
Jouni Malinen
a120c3fad6 WPS: Remove unused credential handlers for 802.1X
The WPA_AUTH_WPA and WPA_AUTH_WPA2 cases have already been rejected in
this function when execution comes here. In theory, support for
WPA-Enterprise could be added, but since that has not happened over the
years, there is no good reason to keep this dead code here.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-19 19:10:40 +03:00
jim1_lin
c8b245b6a4 WPS: Update dev.config_methods in wps_update_config
dev.config_methods was not updated when wps_update_config was called.
This could lead to mismatching config methods between Probe Request and
M1 packets. Add missing part for it.
2012-08-04 20:14:59 +03:00