Commit graph

410 commits

Author SHA1 Message Date
Jouni Malinen
c3d1223848 Reinitialize autoscan on explicit reassocciate/reconnect command
This clears the exponential scan interval back to the base value
when a reconnection is requested explicitly.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-06-26 20:05:51 +03:00
Jouni Malinen
992189991c Start autoscan for first connection attempt
Use wpa_supplicant_set_state() to initialize state to DISCONNECT so that
autoscan gets initialized properly. This needs a change in
autoscan_init() to avoid extra scan request that would postpone the
first scan request when an interface is added.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-06-26 19:52:46 +03:00
Tomasz Bursztyka
7c865c6853 Add automatic scanning support
Like bgscan, autoscan is an optional module based feature to automate
scanning but while disconnected or inactive.

Instead of requesting directly a scan, it only sets the scan_interval
and the sched_scan_interval. So, if the driver supports sched_scan,
autoscan will be able to tweak its interval. Otherwise, the tweaked
scan_interval will be used. If scan parameters needs to be tweaked, an
autoscan_params pointer in wpa_s will provide those. So req_scan /
req_sched_scan will not set the scan parameters as they usually do, but
instead will use this pointer.

Modules will not have to request a scan directly, like bgscan does.
Instead, it will need to return the interval it wants after each
notification.

Signed-hostap: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2012-06-26 18:55:41 +03:00
Jouni Malinen
c1c023429b Set state to DISCONNECTED on auth/assoc failures
Some of the authentication/association failure paths left wpa_state to
its previous value. This can result in unexpected behavior when
wpa_supplicant tries to find an AP to connect to since the uncleared
state can result the in the selected BSS being ignored if it is same as
the previously used BSS. This could happen, e.g., when wpa_supplicant
SME was used and the AP rejected authentication. Fix this by explicitly
setting state to DISCONNECTED on auth/assoc failures that did not yet do
this.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-06-25 14:23:25 +03:00
Jithu Jance
b9cfc09a81 P2P: Add preference setting for concurrent use cases
Add an additional parameter to prioritize either sta or p2p connection
to resolve conflicts arising during single channel concurrency.

Signed-hostap: Jithu Jance <jithu@broadcom.com>
2012-06-10 20:53:09 +03:00
Jouni Malinen
b6668734ab WNM: Add advertisement of BSS max idle period
If WNM is enabled for the build (CONFIG_WNM=y), add BSS max idle period
information to the (Re)Association Response frame from the AP and parse
this information on the station. For SME-in-wpa_supplicant case, add a
timer to handle periodic transmission of the keep-alive frame. The
actual request for the driver to transmit a frame is not yet
implemented.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-05-27 17:35:00 -07:00
Jouni Malinen
f15854d1e1 Fix BSSID enforcement with driver-based BSS selection
Previously, wpa_supplicant did not specify BSSID to any connection
request if the driver indicated that it will take care of BSS selection.
This is fine for most use cases, but can result to issues if the network
block has an explicit bssid parameter to select which BSS is to be used.
Fix this by setting BSSID and channel when the network block includes the
bssid parameter even if the driver indicates support for BSS selection.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
intended-for: hostap-1
2012-05-11 15:27:46 +03:00
Jouni Malinen
349493bd0c Validate WEP key lengths based on driver capabilities
The nl80211 driver interface does not allow 128-bit WEP to be used
without a vendor specific cipher suite and no such suite is defined for
this purpose. Do not accept WEP key length 16 for nl80211 driver
interface forn ow. wext-interface can still try to use these for
backwards compatibility.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-10 14:34:46 +03:00
Jouni Malinen
ab28911dbf P2P: Deinitialize global P2P context on P2P mgmt interface removal
The P2P implementation assumes that the first wpa_s interface instance
is used to manage P2P operations and the P2P module maintains a pointer
to this interface in msg_ctx. This can result in issues (e.g., use of
freed memory) when the management interface is removed. Fix this by
deinitializing global P2P data if the interface that created it is
removed. This will disable P2P until the next interface is added.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-05-10 10:49:22 +03:00
Jouni Malinen
cb4183249f HS 2.0: Add HS 2.0 Indication element into (Re)Association Request
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-08 23:30:04 +03:00
Jouni Malinen
fea7c3a055 Ignore network blocks that have invalid WEP key length
Do not try to associate with a network that has an invalid or incomplete
configuration because the association or at least data connection would
fail anyway. This commits adds a common function for checking whether a
network block is disabled to make it easier to check network blocks
without having to reject them during configuration file parsing (which
would prevent wpa_supplicant from starting). The only additional check
added in this commit is to verify the WEP key length. Similar checks for
other parameters can be added in future commits.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-07 13:39:33 +03:00
Rajkumar Manoharan
c3701c66a5 Add handling of OBSS scan requests and 20/40 BSS coex reports
Add support for HT STA to report 40 MHz intolerance to the associated AP.
A HT station generates a report (20/40 BSS coexistence) of channel list
if it finds a non-HT capable AP or a HT AP which prohibits 40 MHz
transmission (i.e., 40 MHz intolerant bit is set in HT capabilities IE)
from the scan results.

Parse the OBSS scan parameter from Beacon or Probe Response frames and
schedule periodic scan to generate 20/40 coexistence channel report if
requested to do so. This patch decodes Scan Interval alone from the OBSS
Scan Parameters element and triggers scan on timeout.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-03 15:55:38 +03:00
Jouni Malinen
d211881474 Fix D-Bus build without ctrl_iface
Commit 7de5688d68 started using
wpa_supplicant_ctrl_iface_ctrl_rsp_handle() from the D-Bus code, but
left this function in ctrl_iface.c that is included conditionally. Fix
this by moving the common function into wpa_supplicant.c so that it can
be included for builds that include only either ctrl_iface or D-Bus.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-04-27 21:21:31 +03:00
Mukesh Agrawal
c6e86b63d2 Create DBus getter/setter for ScanInterval
Enable control of wpa_s->scan_interval via D-Bus. This parameter
controls the delay between successive scans for a suitable AP.

Also, update dbus.doxygen with ScanInterval, and some other
parameters that were undocumented.

Signed-hostap: Mukesh Agrawal <quiche@chromium.org>
2012-04-01 18:05:22 +03:00
Johannes Berg
4f68895e92 debug: Add option to log to Linux tracing
Add the option (-T) to wpa_supplicant to log all debug messages into the
kernel tracing, allowing to aggregate kernel debugging with
wpa_supplicant debugging and recording all with trace-cmd.

Since tracing has relatively low overhead and can be filtered
afterwards, record all messages regardless of log level. However, it
will honor the -K option and not record key material by default.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-03-31 13:55:33 +03:00
Bala Shanmugam
1f6c0ab872 Allow background scan period to be configured
A network block specific background scan period can now be configured
for drivers that implement internal background scan mechanism for
roaming and BSS selection.

Signed-hostap: Bala Shanmugam <bkamatch@qca.qualcomm.com>
2012-03-30 15:20:35 +03:00
Jouni Malinen
25f839c6d9 Filter station mode EAPOL RX on bridge interface based on destination
If multiple station mode radios are bridged together on the same device,
it is possible for wpa_supplicant to receive EAPOL frames from the
bridge interface and then process them separately for each interface.
This can results in problems since multiple instances of supplicant side
could end up trying to process a single 4-way handshake. Avoid this
problem by filtering bridge interface EAPOL RX based on the desctination
MAC address. It should be noted that this works only when unicast
addresses are used (e.g., with WLAN) and not with the IEEE 802.1X EAPOL
group address (e.g., most wired networks).

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-03-05 15:22:42 +02:00
Jouni Malinen
6979582ca6 Fix processing of channel list update events
Commit 6bf731e8ce broke handling of
EVENT_CHANNEL_LIST_CHANGED by introducing a cached copy of the driver
channel list that does not get updated even if driver changes its list.
Fix this by synchronizing the cacched wpa_s->hw.modes information
whenever EVENT_CHANNEL_LIST_CHANGED is processed. This fixes P2P channel
list updates based on regulatory domain hints that may trigger driver to
change its supported channel list.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
intended-for: hostap-1
2012-03-01 17:59:39 +02:00
Jouni Malinen
ef48ff940b Fix CTRL-EVENT-DISCONNECTED event for locally generated disconnection
When wpa_supplicant disconnects, e.g., due to authentication timeout,
we need to go through the EVENT_DISASSOC/DEAUTH processing similarly
to the driver triggered cases to get correct events delivered to the
ctrl_iface. Fix this by calling wpa_supplicant_event() in these cases
and by filtering out the confusing CTRL-EVENT-DISCONNECTED event with
all zeros BSSID.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-03-01 15:42:35 +02:00
Jouni Malinen
f64adcd71e Allow PC/SC reader to be selected and initialized at start
New global configuration parameters pcsc_reader and pcsc_pin can now be
used to initialize PC/SC reader context at start of wpa_supplicant.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-26 13:09:30 +02:00
Jouni Malinen
6f3bc72be0 P2P: Allow channels to be removed from P2P use
A list of disallowed frequencies for P2P channel list can now be
configured with P2P_SET disallow_freq. The frequencies (or frequency
pairs) are comma separated. For example:
wpa_cli p2p_set disallow_freq 2462,5000-6000

The allowed P2P channel list is constructed by removing explicitly
disallowed channels from the channel list received from the driver.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-02-17 22:57:13 +02:00
Jouni Malinen
b8a8d6774b P2P: Do not include P2P IE in association request to non-P2P AP
This was previously fixed for most cases in commit
ffad885837, but the check here for
drivers that implement SME/MLME was missed in that commit.

This removes the P2P IE from (Re)Association Request frame with
drivers that do not use wpa_supplicant SME implementation and are
P2P cabable when associating with a non-P2P AP (i.e., not a GO or
P2P WLAN manager AP).

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
intended-for: hostap-1
2012-02-17 11:34:56 +02:00
Jouni Malinen
d445a5cd8e Add BSSID filter for testing purposes
wpa_supplicant can now be configured to filter out scan results based
on a BSSID filter. Space-separated set of allowed BSSIDs can be set
with wpa_cli set bssid_filter command. Filtering mechanism can be
disabled by setting this variable to an empty list. When set, only
the BSSes that have a matching entry in this list will be accepted
from scan results.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-02-16 16:30:13 +02:00
Jouni Malinen
0f3d578efc Remove the GPL notification from files contributed by Jouni Malinen
Remove the GPL notification text from the files that were
initially contributed by myself.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-11 19:39:36 +02:00
Jouni Malinen
331f89ff5b Select the BSD license terms as the only license alternative
Simplify licensing terms for hostap.git by selecting the BSD license
alternative for any future distribution. This drops the GPL v2
alternative from distribution terms and from contribution requirements.

The BSD license alternative that has been used in hostap.git (the one
with advertisement clause removed) is compatible with GPL and as such
the software in hostap.git can still be used with GPL projects. In
addition, any new contribution to hostap.git is expected to be licensed
under the BSD terms that allow the changes to be merged into older
hostap repositories that still include the GPL v2 alternative.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-11 19:39:31 +02:00
Dan Williams
0f4668ceac Try fallback drivers if global init for preferred drivers fails
Driver global init was considered a hard failure. Thus if, for example,
you used the Broadcom STA driver and didn't have nl80211 or cfg80211
loaded into the kernel, and specified a driver value of "nl80211,wext",
the nl80211 driver's global init would fail with the following message:

nl80211: 'nl80211' generic netlink not found
Failed to initialize driver 'nl80211'

but since global init was a hard failure, creating the supplicant
interface would fail and the WEXT driver would not be tried.
Give other drivers a chance instead.

Signed-hostap: Dan Williams <dcbw@redhat.com>
intended-for: hostap-1
2012-02-04 20:09:51 +02:00
Jouni Malinen
96efeeb66b Use PMKSA cache entries with only a single network context
When looking for PMKSA cache entries to use with a new association, only
accept entries created with the same network block that was used to
create the cache entry.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-04 12:32:35 +02:00
Jouni Malinen
d93dfbd588 Delay scan request on select_network if disconnecting
The disconnection command results in disassociation and deauthentication
events which were previously processed during the scan in case of
select_network command being used while associated with another network.
While this works in most cases, it can result in confusing event
messages in ctrl_iface and debug log. Avoid this by using a short delay
between the disconnection and scan request to allow the disconnection
events to be processed prior to starting the new scan.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-02-04 12:28:16 +02:00
Ben Greear
80e8a5eef1 Support HT capability overrides
This allows HT capabilities overrides on kernels that
support these features.

MCS Rates can be disabled to force to slower speeds when using HT.
Rates cannot be forced higher.

HT can be disabled, forcing an 802.11a/b/g/n station to act like
an 802.11a/b/g station.

HT40 can be disabled.

MAX A-MSDU can be disabled.
A-MPDU Factor and A-MPDU Density can be modified.

Please note that these are suggestions to the kernel. Only mac80211
drivers will work at all. The A-MPDU Factor can only be decreased and
the A-MPDU Density can only be increased currently.

Signed-hostap: Ben Greear <greearb@candelatech.com>
2012-01-29 21:01:31 +02:00
Jouni Malinen
499e7286b0 Remove duplicated TERMINATING event
Now that CTRL-EVENT-TERMINATING even is sent at the end of interface
removal in case wpa_supplicant process is going to terminate, there
is no need for this duplicated event in the signal handler.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-01-29 20:23:07 +02:00
Dmitry Shmidt
f08115165b Move ctrl_iface deinit into the end of interface deinit
This allows TERMINATING ctrl_iface event to be sent at the end of the
deinit sequence to avoid race conditions with new operations that this
event may trigger while wpa_supplicant would still be running through
the deinitialization path.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2012-01-29 20:21:07 +02:00
Dmitry Shmidt
2523ff6ea4 Deinit driver before notifying interface has been removed
This avoids issues with some external program starting to use the
interface based on the interface removal event before wpa_supplicant
has completed deinitialization of the driver interface.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2012-01-29 20:18:48 +02:00
Dmitry Shmidt
df509539d4 Let wpa_supplicant_deinit_iface() know that process is terminating
This will be needed to be able to move ctrl_iface TERMINATING event to
the end of interface removal.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2012-01-29 20:15:48 +02:00
Eyal Shapira
b3aa456b3e Interleave wildcard and specific SSID scans when max_ssids=1
For drivers limited to scan a single SSID at a time, this prevents
waiting too long for a wildcard scan in case there are several
scan_ssid networks in the configuration.

Signed-hostap: Eyal Shapira <eyal@wizery.com>
2012-01-29 17:39:08 +02:00
Nicolas Cavallari
9e2af29f9b Support fixing the BSSID in IBSS mode
When the "bssid=" option is set for an IBSS network and ap_scan = 2,
ask the driver to fix this BSSID, if possible.

Previously, any "bssid=" option were ignored in IBSS mode when ap_scan=2.

Signed-hostap: Nicolas Cavallari <cavallar@lri.fr>
2012-01-28 11:33:47 +02:00
Jouni Malinen
57d38ddf6b Update copyright notices to include year 2012
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-01-01 18:59:16 +02:00
Jouni Malinen
5fd9fb2772 Remove possible authentication timeout on connection failure
The authentication timeout could be triggered after the connection has
already been known to have failed. The event at that point can be
confusing, so better cancel the timeout when processing connection
failure.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-31 13:25:37 +02:00
Arik Nemtsov
4f73d88afa Maintain internal copy of Probe Response offload capabilities
Signed-hostap: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2011-12-10 21:11:32 +02:00
Jouni Malinen
bfba8deb8b Update internal MAC address on EVENT_INTERFACE_ENABLED events
This allows the MAC address of the interface to be changed when the
interface is set down even if the interface does not get completed
removed and re-added.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-03 13:20:40 +02:00
Johan Hedlund
f98eb880eb Update RSN supplicant MAC address on driver reinitialization
I have a test case where I remove and insert another network adapter
between two connections to AP. The interface get the same interface name
but switches macadresses between the connections. When running WPA2 I
got a failure in EAPOL negotiation and found out that the reason for
this was that the supplicant did not update the MAC address in the
correct place.
2011-12-03 13:02:57 +02:00
Jouni Malinen
0bf927a03e Use wpa_key_mgmt_*() helpers
This cleans up the source code and makes it less likely that new AKM
addition misses some needed changes in the future.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-24 22:47:46 +02:00
Jouni Malinen
39e7d718f6 ndis: Work around lack of C99 designated initializers in MSVC
Use a driver_ndis.c specific initialization function to fill in the
wpa_driver_ops information to make it easier to modify struct
wpa_driver_ops in the future. Being able to build driver_ndis.c
with MSVC was the only reason for having to maintain the same order
of function pointers in struct wpa_driver_ops and for having to
update driver_ndis.c for all changes in that structure.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-03 18:45:21 +02:00
Jouni Malinen
01a1749156 Fix TKIP countermeasures stopping in deinit paths
The eloop timeout to stop TKIP countermeasures has to be canceled
on deinit path to avoid leaving bogus timeouts behind.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-10-30 12:53:20 +02:00
Arik Nemtsov
c58ab8f249 TDLS: Get TDLS related capabilities from driver
Put glue code in place to propagate TDLS related driver capabilities to
the TDLS state machine.

If the driver doesn't support capabilities, assume TDLS is supported
internally.

When TDLS is explicitly not supported, disable all user facing TDLS
operations.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:15:15 +03:00
Christian Lamparter
6bf731e8ce wpa_supplicant: Unify hardware feature data
The hardware feature data is required in several different places
throughout the code. Previously, the data was acquired and freed on
demand, but with this patch wpa_supplicant will keep a single copy
around at runtime for everyone to use.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
2011-10-23 17:21:50 +03:00
Jouni Malinen
7756114f6a Postpone global_init() call until first driver instance is initialized
This avoids allocating global driver state for driver wrappers that
are built in but not used. This can save some resources and avoids
failures with driver_nl80211.c that is now initializing netlink
connections for nl80211 in global_init().
2011-10-23 13:20:52 +03:00
Jouni Malinen
17fbb751e1 Remove user space client MLME
This code was used only with driver_test.c to allow MLME operations
in hostapd to be tested without having to use a real radio. There
are no plans on extending this to any other use than testing and
mac80211_hwsim has now obsoled the need for this type of testing.
As such, we can drop this code from wpa_supplicant to clean up the
implementation of unnecessary complexity.
2011-10-22 22:45:38 +03:00
Dmitry Shmidt
48f8e03622 Prevent ap_scan change during association
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2011-10-21 19:00:18 +03:00
Jouni Malinen
92cbcf9128 Add Extended Capability element to AssocReq for Interworking
If Interworking is enabled, add Extended Capability element to
(Re)Association Request frames to indicate support for Interworking.
2011-10-16 23:55:34 +03:00
Luciano Coelho
6a90053cdf Add delayed scheduled scan request
When initializing, the scheduled scan code was being called before
everything is ready. With normal scans, the first scan round is
delayed, so the initialization is finished by the time it really
starts.

Add a function that can be used to request a delayed scheduled scan.
The scan will only start after the specified time has elapsed. Call
this function instead of starting the scheduled scan directly during
driver initialization.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-15 18:53:14 +03:00
Luciano Coelho
b59e6f267b Add filter support to scheduled scans
Pass SSIDs to be matched in scheduled scan results. Only the SSIDs
that are included in the match lists will be reported by the driver,
so the filtering can be offloaded to the hardware and the power
consumption can be reduced.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-15 18:53:14 +03:00
Luciano Coelho
a4cba8f1e2 Use sched_scan in driver init
This patch uses sched_scan, if available, when the driver is
initialized. It also adds a couple of cancel operations where
appropriate.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-15 18:53:13 +03:00
Luciano Coelho
cbdf3507e9 Add scheduled scan driver operations
In new Linux kernel versions (>=3.0), nl80211 adds scheduled scan
capability. In order to use this feature to its full extent, we need
to support it in the wpa_supplicant core, so that it can also be used
by other drivers.

This commit adds initial scheduled scan support operations and events.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-15 18:53:13 +03:00
Jithu Jance
2a6f78fbbe Do not re-associate on SELECT_NETWORK to current network
Signed-off-by: Jithu Jance <jithu@broadcom.com>
2011-10-02 13:12:43 +03:00
Zhi Chen
7d232e23e2 Allow wildcard SSID to be used with WPA-PSK if bssid is set
This allows the AP to be selected based on the BSSID when WPA-PSK
is used with a passphrase. The PSK will be derived from the passphrase
after the SSID has been learned from scan results.
2011-09-30 22:05:44 +03:00
Jouni Malinen
24f6497c34 GAS: Use off-channel operations for requests
This separates off-channel Action frame TX/RX from P2P into a generic
implementation that can now be used both for P2P and GAS needs.
2011-09-29 22:19:51 +03:00
Jouni Malinen
04ea7b7947 GAS: Add a generic GAS query module
This implements GAS request mechanism that is aimed at being used to
replace use case specific GAS/ANQP implementations in the future.
Compared to the earlier implementation in P2P SD, this implementation
includes support for multiple concurrent requests and more thorough
validation of frames against the pending query data.

GAS header processing, including comeback and reassembly, are handled
within gas_query.c and the users of this module will only need to
provide the Query Request and process the (possibly reassembled)
Query Response.
2011-09-29 22:19:15 +03:00
Jouni Malinen
0096c42740 Do not enable bgscan when driver takes care of BSS selection
There is no need to request periodic bgscans when the driver claims
to have capability for roaming within ESS. Ignoring the bgscan
configuration allows the same configuration file to be used both
with drivers the handle roaming and with drivers that don't.
2011-09-26 15:17:01 +03:00
Jouni Malinen
22628eca34 Support driver-based BSS selection in ap_scan=1 mode
If the driver indicates that it supports BSS selection (including
roaming within an ESS) with WPA_DRIVER_FLAGS_BSS_SELECTION, modify
ap_scan=1 mode to behave like ap_scan=2 mode for BSS selection.

The initial scan is still done to avoid the need for strict
configuration of or security parameters (e.g., to figure out whether
TKIP or CCMP is being used as the group cipher). However, when
requesting the driver to connect, the bssid and freq parameters are
not provided to leave the driver in control of selecting which BSS
to use and to allow the driver to decide when to roam.
2011-09-26 14:57:23 +03:00
Edward Lu
cf546f1a03 Make sure wpa_proto gets cleared for WPS and non-WPA connections
This is needed to fix the wpa_proto association parameter for drivers
that select AP based on security parameters internally.
2011-09-08 17:51:08 +03:00
Jouni Malinen
d8a790b922 Flush PMKSA cache entries and invalidate EAP state on network changes
If a network configuration block is removed or modified, flush
all PMKSA cache entries that were created using that network
configuration. Similarly, invalidate EAP state (fast re-auth).

The special case for OKC on wpa_supplicant reconfiguration
(network_ctx pointer change) is now addressed as part of the
PMKSA cache flushing, so it does not need a separate mechanism
for clearing the network_ctx values in the PMKSA cache.
2011-09-07 17:46:00 +03:00
Jouni Malinen
64fa840a97 nl80211: Fix WPA_VERSIONS attribute for Connect command
The previous code was trying to figure out which WPA version is
used based on the extra IEs requested for Association Request. That
did not work properly in cases where non-WPA networks are used with
some extra IEs. Fix this by using more robust mechanism for passing
the WPA versions from core wpa_supplicant to the driver_ops
associate().
2011-09-02 20:40:23 +03:00
Jouni Malinen
ffad885837 P2P: Set p2p auth/assoc parameter based on connection type
Fix the previous code that was hardcoding the p2p parameter based
on the driver P2P capability regardless of whether the connection
was really used for P2P or not.
2011-07-17 20:52:49 +03:00
Jouni Malinen
7b7ce8aa13 Deauthenticate on reconfiguration
This makes sure that the old connection is not maintained if the new
configuration does not allow it anymore. In addition, it is better to
use wpa_supplicant_clear_connection() instead of just clearing
wpa_s->current_ssid here to keep things in sync.
2011-07-16 16:57:11 +03:00
Jouni Malinen
7dcdcfd68d P2P: Start GO without extra scan step
There are some corner cases, where the wpa_supplicant_req_scan() call
may end up scheduling a scan even if we are about to start a GO. Avoid
this by explicitly marking the GO network to be selected for the next
connection.
2011-06-21 11:47:03 +03:00
Jouni Malinen
38e24575c1 random: Add support for maintaining internal entropy store over restarts
This can be used to avoid rejection of first two 4-way handshakes every
time hostapd (or wpa_supplicant in AP/IBSS mode) is restarted. A new
command line parameter, -e, can now be used to specify an entropy file
that will be used to maintain the needed state.
2011-05-31 20:07:11 +03:00
Jouni Malinen
849b5dc78b Update driver country info on 'SET country <value>' 2011-04-15 17:00:01 +03:00
Jouni Malinen
95cb2d88e9 TDLS: Verify that scan results for BSS are available before using them 2011-04-14 19:50:26 +03:00
Dmitry Shmidt
67b9bd089b Make scan interval configurable
It is now possible to configure the the time in seconds that
wpa_supplicant waits before requesting a new scan after failing to find
a suitable network in scan results.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2011-04-11 23:14:38 +03:00
Paul Stewart
14dc00115e dbus: Add "excessive" to debug_strings
The "debug_strings" private array in dbus_new_handles.c has fallen out
of sync with wpa_debug.h. Add the new "excessive" level to the head of
the list, realigning everything.

Signed-off-by: Paul Stewart <pstew@google.com>
2011-03-31 17:38:08 +03:00
Jouni Malinen
78177a000e RSN IBSS: Restart IBSS state machines for each new IBSS
Change the old design of running a single long living RSN IBSS
instance to keep a separate instance for each IBSS connection.
This fixes number of issues in getting keys set properly for
new connections and is in general quite a bit more correct
design.
2011-03-23 21:15:46 +02:00
Jouni Malinen
d47fa330b8 random: Read /dev/random in the background with eloop read socket
This makes it more likely to be able to fetch the 20 octet seed from
/dev/random in cases where other programs may also be competing for
this.
2011-03-22 23:15:00 +02:00
Sam Leffler
78633c3709 wpa_supplicant: Parameterize BSS table expiration age + count
Replace compile-time BSS cache expiration age and scan count by config
parameters that can be set via wpa_cli and the new D-Bus API. The latter
is done with interface properties BSSExpireAge and BSSExpireCount.
2011-03-20 12:40:59 +02:00
Paul Stewart
cfe53c9aa5 wpa_supplicant: Start bgscan on COMPLETED, not ASSOCIATED
Move the code snippet to switch on bgscan over to wpa_supplicant.c
from event.c, so that it can be activated on wpa_supplicant_set_state().
Also create a centralized place to switch off bgscan. bgscan is now
turned on in COMPLETED, not ASSOCIATED.
2011-03-20 12:27:03 +02:00
Paul Stewart
5bbf9f1086 Add DBus state change notification for AuthMode property
Signed-off-by: Paul Stewart <pstew@google.com>
2011-03-15 13:54:59 +02:00
Paul Stewart
cf83fb0b5b wpa_supplicant: Add wpa_supplicant_get_eap_mode method
Signed-off-by: Paul Stewart <pstew@google.com>
2011-03-15 13:53:08 +02:00
Jouni Malinen
52c9e6f3f5 TDLS: Do not allow setup to be started if AP prohibits TDLS 2011-03-06 14:54:49 +02:00
Ganesh Prasadh
281ff0aa76 TDLS: Add initial support for TDLS (IEEE Std 802.11z-2010) 2011-03-06 14:53:49 +02:00
Jouni Malinen
9e0749737c Update copyright notices to include the new year 2011-02-27 12:50:00 +02:00
Ben Greear
48b84f18a3 Wait 1 second before (re)scanning on authentication timeout
If we timed out, the AP or the local radio may be busy.
So, wait a second until scanning again.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2011-02-24 17:16:16 +02:00
Ben Greear
e29853bbff SME: Add timers for authentication and asscoiation
mac80211 authentication or association operation may get stuck for some
reasons, so wpa_supplicant better use an internal timer to recover from
this.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2011-02-24 16:59:46 +02:00
Jouni Malinen
50b16da13f Fix CONFIG_NO_STDOUT_DEBUG=y build 2011-02-10 20:24:06 +02:00
Ben Greear
f049052b9e Use wpa_msg() instead of wpa_printf()
This converts number of debugging messages to use wpa_msg() in order
to allow the interface name to be shown with the messages.

A new function, wpa_dbg(), is introduced to allow
CONFIG_NO_STDOUT_DEBUG=y builds to remove the debug strings. This is
otherwise identical with wpa_msg(), but it gets compiled out if stdout
debugging is disabled.
2011-02-10 20:14:46 +02:00
Ben Greear
4f1495aefa Add interface name to wpa_msg() output
This makes log files much more readable if multiple interfaces
are being controlled by the same process. The interface name is
added to stdout/file/syslog entries, but not to the messages
sent to control interface monitors to avoid issues with parsing
in external programs.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2011-02-06 20:39:34 +02:00
Jouni Malinen
0382097ef3 Use set_key addr to distinguish default and multicast keys
Previously, both NULL and ff:ff:ff:ff:ff:ff addr were used in various
places to indicate default/broadcast keys. Make this more consistent
and useful by defining NULL to mean default key (i.e., used both for
unicast and broadcast) and ff:ff:ff:ff:ff:ff to indicate broadcast
key (i.e., used only with broadcast).
2011-01-09 19:44:28 +02:00
Jouni Malinen
da64c266e7 Use more consistent set_key seq value when nothing is being set
Use NULL instead of (u8 *) "" as the seq value and make sure the
driver wrapper implementations can handle NULL value. This was
previously already done in number of places, but not everywhere.
2011-01-09 12:09:04 +02:00
Jouni Malinen
5e8b237864 Fix CONFIG_SME build without CONFIG_IEEE80211W 2010-12-19 12:44:58 +02:00
Jouni Malinen
7d878ca769 Use SA Query procedure to recovery from AP/STA state mismatch
If a station received unprotected Deauthentication or Disassociation
frame with reason code 6 or 7 from the current AP, there may be a
mismatch in association state between the AP and STA. Verify whether
this is the case by using SA Query procedure. If not response is
received from the AP, deauthenticate.

This implementation is only for user space SME with
driver_nl80211.c.
2010-12-19 11:58:00 +02:00
Ben Greear
c577db2afd Add interface name to some debug prints
This makes it easier to figure out what is happening when controlling
multiple interfaces from a single wpa_supplicant process.
2010-11-26 21:16:36 +02:00
Jouni Malinen
871f4dd069 Allow driver wrappers to indicate whether result codes are sane
Some drivers are not providing exactly reliable error codes (e.g.,
with WEXT), but others may actually indicate reliable information.
Allow driver wrappers to indicate if that is the case and use
optimizations if so. For now, this improves nl80211 with
NL80211_CMD_CONNECT for a case where connection request fails.
2010-11-26 17:41:21 +02:00
Jouni Malinen
0fb337c121 Extend load balancing optimization in BSS blacklisting
Move the previously SME specific optimization code into generic
function that can be used from non-SME code, too, and use it to
handle disconnection events. In other words, allow disconnection
event to trigger similar optimized scanning case to handle a
common load balancing mechanism. If there is another BSS in the
same ESS when we receive a disconnection event, scan only the
known frequencies of such other BSSes on the next attempt to
speed up recovery.
2010-11-26 11:36:03 +02:00
Jouni Malinen
f47d639d49 SME: Optimize recovery from common load balancing mechanisms
When authentication or association fails when trying to connect to
a BSS in an ESS that has multiple BSSes based on previous scans,
limit the first recovery scan to only the known channels that has
been seen previously. This speeds up recovery in some of the most
commonly used load balancing mechanisms in enterprise WLAN
networks.
2010-11-25 22:51:56 +02:00
Samuel Ortiz
74b1c84a0b wpa_supplicant: Test all compiled drivers before failing
wpa_supplicant_set_driver() is returning an error if the first driver
in the driver list is not built in. It should continue through the
driver list until it finds one that's built in.
2010-11-09 16:45:27 +02:00
Felix Fietkau
99ac2913d8 wpa_supplicant: Fix port state management without IEEE8021X_EAPOL
If IEE8021X_EAPOL is not enabled in the config, wpa_drv_set_supp_port
must be called from the supplicant, otherwise port will not be
activated after association.
2010-11-09 16:31:33 +02:00
Jouni Malinen
2f9c6aa665 Fix memory leak in P2P build without MLME
The ieee80211_sta_free_hw_features() function is now used outside
the MLME code, so better make sure it gets included in the build
to avoid leaking memory.
2010-10-27 11:26:46 +03:00
Jouni Malinen
f19858f5a8 Show wpa_supplicant version number in the debug log 2010-10-22 11:50:34 +03:00
Jouni Malinen
c4ea4c5c90 P2P: Allow driver wrapper to indicate how many stations are supported
This can be used to limit the number of clients allowed to connect
to the group on the GO.
2010-09-09 07:17:21 -07:00
Jouni Malinen
eea2fd9eff P2P: Add mechanism for configuring UAPSD parameters for group
This is needed to be able to change parameters for dynamically
created interfaces between the creation of the interface and
association/start AP commands.

Following ctrl_interface commands can now be used:

P2P_SET client_apsd disable
- disable configuration (i.e., use driver default) in client mode

P2P_SET client_apsd <BE>,<BK>,<VI>,<VO>;<max SP Length>
- enable UASPD with specific trigger configuration (0/1) per AC
  (max SP Length is currently ignored)

P2P_SET go_apsd disable
- disable configuration (i.e., use driver default) in AP mode

P2P_SET go_apsd <0/1>
- disable/enable APSD in AP mode
2010-09-09 07:17:21 -07:00
Jouni Malinen
72044390f3 P2P: Add support for cross connection
If enabled, cross connection allows GO to forward IPv4 packets
using masquerading NAT from the P2P clients in the group to an
uplink WLAN connection. This is disabled by default and can be
enabled with "wpa_cli p2p_set cross_connect 1" on the P2P device
interface.
2010-09-09 07:17:20 -07:00
Jouni Malinen
4c08c0bd57 P2P: Include P2P IE in (Re)AssocReq to infra AP if it uses P2P IE
While this is not strictly speaking required by the P2P specification
for a not-P2P Managed Device, this can provide useful information for
the P2P manager AP and may be needed to pass certification tests.
2010-09-09 07:17:20 -07:00
Jouni Malinen
43a3863516 Trigger scan on reload-config only if there are enabled networks 2010-09-09 07:17:20 -07:00
Jouni Malinen
5f3a6aa0a4 P2P: Add P2P IE into (Re)Association Request frames 2010-09-09 07:17:17 -07:00
Jouni Malinen
6e3f4b89ea P2P: Let the driver wrapper know if association is for P2P group 2010-09-09 07:17:17 -07:00
Jouni Malinen
b22128efdc P2P: Add initial version of P2P Module 2010-09-09 07:17:17 -07:00
Jouni Malinen
fdadd5fe03 P2P: Do not register l2_packet on dedicated P2P device interface 2010-09-09 07:17:17 -07:00
Jouni Malinen
4dac02455a P2P: Use config block with disabled==2 to store persistent groups 2010-09-09 07:17:17 -07:00
Jouni Malinen
2c5d725c65 P2P: Add dynamic network config block parameters for P2P 2010-09-09 07:17:16 -07:00
Jouni Malinen
611aea7d41 Allow ctrl_iface SET command to change global config parameters 2010-09-09 07:17:16 -07:00
Jouni Malinen
0c80427d77 NDIS: Fix association for WPS provisioning with protected AP
Some NDIS drivers require a workaround to allow them to associate
with a WPS AP that is already using protection (Privacy field = 1).
Let driver_ndis.c know if the AP is already using Privacy and if so,
configure a dummy WEP key to force the driver to associate.
2010-09-04 13:56:12 +03:00
Jouni Malinen
09f58c0984 Share common code in wpa_supplicant_{disassociate,deauthenticate}() 2010-08-26 13:43:38 +03:00
Jouni Malinen
eb0a3c7f96 Cancel authentication timeout on local deauth/disassoc request
Without this, the timeout may be left behind even when we are not
connected and may result in unwanted operation when the timeout
triggers.
2010-08-26 13:39:58 +03:00
Jouni Malinen
8401a6b028 Add Linux rfkill support
Add a new wpa_supplicant state: interface disabled. This can be used
to allow wpa_supplicant to be running with the network interface even
when the driver does not actually allow any radio operations (e.g.,
due to rfkill).

Allow driver_nl80211.c and driver_wext.c to start while rfkill is in
blocked state (i.e., when ifconfig up fails) and process rfkill
events to block/unblock WLAN.
2010-05-23 10:27:32 +03:00
Kel Modderman
adc8d4a791 Fix enabling of networks while another network is being used
Enable a network block, even if there is a current configuration, if it
was disabled.

Signed-off-by: Kel Modderman <kel@otaku42.de>
2010-05-02 11:08:03 +03:00
Jouni Malinen
74e259ec7c Do not trigger initial scan if there are no enabled networks
This allows wpa_supplicant to be started quickly with an empty
configuration. If an external program wants to fetch scan results
from wpa_supplicant, it will need to request a scan explicitly
in this type of case.
2010-04-16 18:56:23 +03:00
Jouni Malinen
508545f3a9 Add more wpa_supplicant AP mode parameters for the driver wrapper
This makes it easier to configure AP mode for drivers that take care
of WPA/RSN IE generation.
2010-04-11 20:02:01 +03:00
Jouni Malinen
814782b9fe Allow driver wrappers to indicate maximum remain-on-channel duration 2010-04-11 19:42:37 +03:00
Jouni Malinen
17a4734dc4 Optimize post-WPS scan based on channel used during provisioning
Scan only the frequency that was used during provisioning during the
first five scans for the connection. This speeds up connection in the
most likely case where the AP remains on the same channel. If the AP is
not found after these initial scans, all channels will be scanned.
2010-04-11 19:06:42 +03:00
Jouni Malinen
e7846b6859 FT: Clean up wpa_sm_set_ft_params() by using common parse
Instead of parsing the IEs in the callers, use the already existing
parser in wpa_ft.c to handle MDIE and FTIE from initial MD association
response. In addition, this provides more complete access to association
response IEs to FT code which will be needed to fix FT 4-way handshake
message 2/4.
2010-04-10 11:36:35 +03:00
Jouni Malinen
76b7981d07 FT: Copy FT Capability and Policy to MDIE from target AP
This sets the FT Capability and Policy field in the MDIE to the values
received from the target AP (if available). This fixes the MDIE contents
during FT Protocol, but the correct value may not yet be used in initial
mobility domain association.
2010-04-09 16:26:20 +03:00
Jouni Malinen
e820cf952f MFP: Add MFPR flag into station RSN IE if 802.11w is mandatory 2010-03-29 10:48:01 -07:00
Jouni Malinen
dff0f701d0 Preparations for v0.7.1 release 2010-01-16 19:04:38 +02:00
Marcel Holtmann
27f43d8de5 dbus: Replace StateChanged with PropertiesChanged signal
The actual supplicant state is exposed via a property on the interface
object. So having a separate signal StateChanged for notifying about
changes is a bad idea. The standard PropertiesChanged signal should be
used for this.

The advantage of StateChanged signal was that it includes the previous
state, but not even NetworkManager is making use of this. And tracking
the old state via the property and this signal is easily possible anyway.
2010-01-04 16:33:44 +02:00
Jouni Malinen
abd9fafab6 Standardize on a single definition of auth_alg bitfield values 2010-01-03 21:14:40 +02:00
Jouni Malinen
70f8cc8ec8 Share the same enum for MFP configuration
The three existing enums were already depending on using the same
values in couple of places and it is just simpler to standardize on
one of these to avoid need for mapping between different enums for
the exact same thing.
2010-01-03 21:02:51 +02:00
Jouni Malinen
9ba9fa07cc Move wpa_supplicant specific scan code away from src/drivers
This fits better in wpa_supplicant/scan.c. Couple of remaining
scan_helpers.c functions are currently used in driver wrappers,
but they can likely be removed in the future.
2010-01-03 18:48:11 +02:00
Jouni Malinen
a8e0505bf0 Use driver event, EVENT_EAPOL_RX, for EAPOL frame indication 2010-01-03 17:44:40 +02:00
Jouni Malinen
245519e0cd Replace wpa_supplicant_sta_rx() call with driver event
Get rid of wpa_supplicant_sta_rx() and add a new driver event that is
marked to be used only with driver_test.c. In addition, remove this
functionality from privsep wrapper. This is only use for client mode
MLME testing with driver_test.c.
2010-01-03 11:50:26 +02:00
Jouni Malinen
8f770587d9 Maintain a pointer to the current BSS table entry 2010-01-02 16:59:19 +02:00
Jouni Malinen
a1fd2ce54e Do not store raw scan results
Use scan results to update the BSS table and to select the BSS for
connection, but do not store the results for longer time.
2010-01-02 16:41:38 +02:00
Jouni Malinen
6fa81a3b3f Use BSS table entry instead of raw scan result for connection 2010-01-02 16:16:02 +02:00
Jouni Malinen
8d923a4acf Only expire scanned BSSes based on new scan results
Get more information about scans when updating BSS table information.
This allows the missing-from-scans expiration rule to work properly
when only partial set of channels or SSIDs are being scanned.
2010-01-02 13:57:44 +02:00
Witold Sowa
db9133acb2 dbus: Divide DebugParams property to three separate properties 2010-01-01 13:00:22 +02:00
Jouni Malinen
8e56d18993 dbus: Fix D-Bus network and BSS object registration/unregistration
Do not try to unregister BSS objects twice (the latter one with invalid
path) and make sure all network objects get added and removed properly
(the ones read from configuration file were not being registered, but
were tried to be unregistered).
2009-12-29 22:17:18 +02:00
Jouni Malinen
d7dcba70bc Define struct wpa_ssid::mode as an enum with more readable values 2009-12-28 16:00:36 +02:00
Jouni Malinen
34359a3fb1 Include BSS table unconditionally in the wpa_supplicant build
This will allow more cleanup to be done for scan results processing
since all code can now be made to depend on the BSS table instead of
the temporary scan results.

Once remaining code has been converted to use the BSS table, the new
scan results can be freed immediately after the BSS table has been
updated. In addition, filtering of BSS information should be added
to better support systems with limited resources. For now, memory
use can be limited by defining WPA_BSS_MAX_COUNT to be smaller.
Anyway, better filtering of results to only the configured networks
should be added to improve this.
2009-12-28 01:14:56 +02:00
Jouni Malinen
83922c2d34 Add BSS table to track scan results without dropping information
Collect information from scan results into a BSS table that will not
expire information as quickly as scan results where every new scan,
no matter for how limited set of channels/SSIDs, clears all old
information.

For now, this is only used for D-Bus BSS added/removed notifications,
but this will likely be extended to be used internally instead of the
scan results to better support partial scans.
2009-12-27 21:07:47 +02:00
Jouni Malinen
2ee055b3c0 Indicate interface removal only if the interface was added successfully 2009-12-26 13:45:07 +02:00
Jouni Malinen
719347511a Get rid of unnecessary typedefs for enums. 2009-12-26 10:35:08 +02:00
Jouni Malinen
a5b9337fc8 Avoid NULL dereference on error path when default driver is used 2009-12-23 23:16:21 +02:00
Jouni Malinen
1a1bf008cb WPS ER: Delay wpa_supplicant termination to allow unsubscription
Instead of forcefully deinitializing ER immediately, give it some
time to complete unsubscription and call eloop_terminate() only once
ER code has completed its work.
2009-12-19 23:47:54 +02:00
Jouni Malinen
0456ea16d8 eloop: Remove global user data pointer
This is not really needed since all signal handlers can use a context
pointer provided during signal handler registration.
2009-12-19 19:22:16 +02:00
Jouni Malinen
c302f20740 Initialize new_connection = 1 to fix wpa_supplicant AP mode operstate
When setting up an AP with wpa_supplicant, the initial connection was
not necessarily setting oper state from DORMANT to UP which would be
blocking normal data frames. Fix this by initializing new_connection
to 1 so that even the first change to COMPLETED state will end up
setting oper state.
2009-12-15 13:17:56 +02:00
Jouni Malinen
127608152e Move EAP method registration away from src/eap_{peer,server}
This makes it easier to make a library out of EAP methods without
losing possiblity of binary size optimization by linker dropping
unreferenced code.
2009-12-06 11:28:41 +02:00
Jouni Malinen
9c972abb66 IBSS RSN: Wait for connection event and do not use auth timeout
Wait for connection (IBSS join completed) event before marking state
completed. In addition, do not use the station mode authentication
timeout since that can trigger full disconnection from IBSS when
there is a timeout with just one of the peers.
2009-12-04 22:09:06 +02:00
Jouni Malinen
5cc4d64bf2 nl80211: Add support for IBSS networks 2009-12-04 00:15:32 +02:00
Jouni Malinen
d8222ae38c Fix driver initialization not to crash if driver does not use init2()
8a5ab9f5e5 fixed global driver context
for init2(), but it also broke driver initialization with driver
wrappers that do not use init2().. Fix this by setting wpa_s->global
before it gets dereferenced.
2009-12-02 16:43:09 +02:00
Jouni Malinen
3acb50056c Remove src/rsn_supp from default header path 2009-11-29 18:28:08 +02:00
Jouni Malinen
90973fb2fd Remove src/common from default header file path
This makes it clearer which files are including header from src/common.
Some of these cases should probably be cleaned up in the future not to
do that.

In addition, src/common/nl80211_copy.h and wireless_copy.h were moved
into src/drivers since they are only used by driver wrappers and do not
need to live in src/common.
2009-11-29 17:51:55 +02:00
Jouni Malinen
8a5ab9f5e5 Fix init2() driver_ops to get the correct global driver context
Need to provide the private driver context, not the wpa_supplicant
global context, in init2() call.
2009-11-28 18:11:16 +02:00
Jouni Malinen
ec8d20187d Remove obsoleted get_scan_results() driver_ops
This has now been replaced with get_scan_results2() in every
in-tree driver.
2009-11-23 21:33:37 +02:00
Jouni Malinen
4a867032ae Remove deprecated driver_ops handlers
This gets rid of previously deprecated driver_ops handlers set_wpa,
set_drop_unencrypted, set_auth_alg, set_mode. The same functionality
can be achieved by using the init/deinit/associate handlers.
2009-11-23 20:22:38 +02:00
Witold Sowa
71f6e1f697 Add notifications for scan result BSS changes (added/removed)
If scan results introduce new BSSs or discards some previously known,
new wpas_notify_bss_added or wpas_notify_bss_removed notifications are
called.
2009-11-11 17:07:53 +02:00
Jouni Malinen
a1641d2671 Call wpas_notify_network_selected only if a specific network was selected
ssid could be NULL here at least based on the function documentation,
so better check whether that is the case prior to calling the
notification function.
2009-11-10 18:06:02 +02:00
Jouni Malinen
d27df100b5 Allow driver and ctrl_interface parameters to be overridden
New wpa_supplicant command line options -o<driver> and -O<ctrl> can
now be used to override the parameters received in add interface
command from dbus or global ctrl_interface. This can be used, e.g.,
to enable control interface when using NetworkManager (add
-O/var/run/wpa_supplicant into the Exec parameter in
/usr/share/dbus-1/system-services/fi.epitest.hostap.WPASupplicant.service).
Similarly, this can be used to use another driver wrapper with
NetworkManager (e.g., -onl80211 to replace WEXT with nl80211).
2009-11-04 20:16:15 +02:00
Witold Sowa
dc461de43e wpa_supplicant and dbus code separation
This patch completely separates supplicant's code from dbus.
It introduces three new notifications which copes with all
remaining dbus stuff.
wpas_notify_unregister_interface() was renamed to
wpas_notify_iface_removed().
2009-10-15 21:15:10 +03:00
Masashi Honma
0e27f655f1 MFP: Clear IGTK
The fourth and fifth keys are used as IGTK for management frame
protection. This patch clears these keys.

I have tested with linux kernel 2.6.31.2.
2009-10-12 07:19:01 +03:00
Johannes Berg
0194fedb46 driver_nl80211: Fix MLME key settings for static WEP
Current wpa_supplicant has a bug with WEP keys, it adds a zero-length
sequence counter field to netlink which the kernel doesn't accept.

Additionally, the kernel API slightly changed to accept keys only when
connected, so we need to send it the keys after that. For that to work
with shared key authentication, we also include the default WEP TX key
in the authentication command.

To upload the keys properly _after_ associating, add a new flag
WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE indicating that the driver
needs the keys at that point and not earlier.
2009-09-15 10:48:30 +03:00
Jouni Malinen
60b94c9819 Add preliminary background scan and roaming module design
This allows background scanning and roaming decisions to be contained in
a single place based on a defined set of notification events which will
hopefully make it easier to experiment with roaming improvements. In
addition, this allows multiple intra-ESS roaming policies to be used
(each network configuration block can configure its own bgscan module).

The beacon loss and signal strength notifications are implemented for
the bgscan API, but the actual events are not yet available from the
driver.

The included sample bgscan module ("simple") is an example of what can
be done with the new bgscan mechanism. It requests periodic background
scans when the device remains associated with an ESS and has couple of
notes on what a more advanced bgscan module could do to optimize
background scanning and roaming. The periodic scans will cause the scan
result handler to pick a better AP if one becomes available. This bgscan
module can be taken into use by adding bgscan="simple" (or
bgscan="simple:<bgscan interval in seconds>") into the network
configuration block.
2009-09-15 00:08:24 +03:00
Witold Sowa
3e53b314f5 Share same freeing and error checking code in get_scan_results
Convert wpa_supplicant_get_scan_results_old() to use the same return
style with the other get_scan_results options and clean up the code
by sharing the same scan result freeing and error checking code for
all the options.
2009-09-13 22:21:52 +03:00
Witold Sowa
86b89452f6 Use shared functions for network operations and param changes
Instead of implementing these separately in various control
interface handlers, use shared functions. These add some of the
previously missing notification calls, too, for the affected areas.
2009-09-13 21:16:43 +03:00
Jouni Malinen
8bac466b00 Add wpa_supplicant notification calls
This introduces a new mechanism for collecting notification calls into
a single place (notify.c). As a result of this, most of the
wpa_supplicant code does not need to know about dbus (etc. mechanisms
that could use the notifications). Some empty placeholder functions are
also added in preparation of new dbus code that needs more event
notifications.
2009-09-13 20:53:32 +03:00
Witold Sowa
1bd3f426d3 Remove extra whitespace 2009-09-13 20:27:54 +03:00
Jouni Malinen
1ff733383f Delay processing of EAPOL frames when not associated
If an EAPOL frame is received while wpa_supplicant thinks the driver is
not associated, queue the frame for processing at the moment when the
association event is received. This is a workaround to a race condition
in receiving data frames and management events from the kernel.

The pending EAPOL frame will not be processed unless an association
event is received within 100 msec for the same BSSID.
2009-09-04 18:04:41 +03:00
Dan Williams
cb8564b1dd dbus: add 'scanning' property
When the supplicant is connected and performs a scan, it doesn't enter
WPA_SCANNING state for various reasons.  However, external programs
still need to know that the supplicant is scanning since they may not
wish to perform certain operations during a scan (as those operations
will likely fail or yield incorrect results).  Add a 'scanning' property
and signal to the supplicant dbus interface to allow clients to
synchronize better with the supplicant when it scans.

Signed-off-by: Dan Williams <dcbw@redhat.com>
2009-05-27 21:06:40 +03:00
Jouni Malinen
3ec97afe57 wpa_supplicant AP: Add preliminary support for WPS Internal Registrar
When in AP mode, wpa_supplicant is now enabling WPS (only Internal
Registrar). wpa_cli wps_pbc and wps_pin commands can be used to initiate
WPS negotiation similarly to how this is done in station mode (though,
the BSSID parameter is ignored).
2009-04-21 16:45:16 +03:00
Jouni Malinen
db149ac949 wpa_supplicant AP: Add EAPOL frame TX and RX
This allows WPA-Personal 4-way handshake to be completed successfully.
2009-04-20 16:27:45 +03:00
Jouni Malinen
c3dc92e85f Make deauthentication and disassociation consistent
This fixes an issue where the station was not marked disassociated
properly with locally requested deauthentication.
2009-04-20 11:36:47 +03:00
Jouni Malinen
c3965310e6 Use common get_hw_feature_data for hostapd and wpa_supplicant
This merges the driver wrapper implementations to use the same
implementation both for hostapd and wpa_supplicant operations to avoid
code duplication.
2009-04-09 14:11:39 +03:00
Jouni Malinen
c51218372f Merge wpa_supplicant and hostapd driver wrapper implementations
This commit merges the driver_ops structures and implementations from
hostapd/driver*.[ch] into src/drivers. This is only an initial step and
there is room for number of cleanups to share code between the hostapd
and wpa_supplicant parts of the wrappers to avoid unnecessary source
code duplication.
2009-04-09 13:40:12 +03:00
Jouni Malinen
6caf9ca68c Share same hw_feature definitions between hostapd and wpa_supplicant 2009-04-03 19:04:20 +03:00
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
Jouni Malinen
1f1b62a0f0 Move wpa_supplicant_create_ap() into ap.c 2009-03-26 16:08:17 +02:00
Jouni Malinen
1581b38b67 Initial step in adding simple AP mode support into wpa_supplicant
This version is adding the configuration option (mode=2) for this and
driver capability reporting to figure out whether AP mode can be used.
However, this does not actually implement any real functionality yet.
2009-03-25 11:38:47 +02:00
Jouni Malinen
36b15723ca Deprecate set_drop_unencrypted(), set_auth_alg(), and set_mode()
All these driver handlers can be implemented in associate() handler
which gets all the needed information in the parameters structure. The
old functions that provided only a single parameter will be removed
eventually to clean up the driver_ops structure, so driver wrappers
should start using the newer mechanism.
2009-03-24 20:06:02 +02:00
Jouni Malinen
c2a0407851 Add SME support (separate authentication and association)
This can be used, e.g., with mac80211-based Linux drivers with
nl80211. This allows over-the-air FT protocol to be used (IEEE
802.11r).

Since the nl80211 interface needed for this is very recent (added
today  into wireless-testing.git), driver_nl80211.c has backwards
compatibility code that uses WEXT for association if the kernel does
not support the new commands. This compatibility code can be
disabled by defining NO_WEXT_COMPAT. That code will also be removed
at  some point to clean up driver_nl80211.c.
2009-03-20 22:26:41 +02:00
Jouni Malinen
4ef1e644eb Determiner whether driver is wired at runtime based on capabilities
Do not use just the driver name for this since driver_ndis.c supports
both wired and wireless NDIS drivers and needs to indicate the driver
type after initialization.
2009-03-07 22:05:43 +02:00
Sam Leffler
daa70d49de Add support for wpa_supplicant syslog output
Enable for build: CFLAGS += -DCONFIG_DEBUG_SYSLOG in .config
Enable at runtime: -s on command line
2009-03-02 21:40:44 +02:00
Jouni Malinen
ba2a573c5f Rename "broadcast SSID" to "wildcard SSID"
"Wildcard SSID" is the term used in IEEE Std 802.11-2007, so it is a
better name for the zero-length SSID used in Probe Request.
2009-02-14 22:21:17 +02:00
Jouni Malinen
362f781e1c Allow multiple driver wrappers to be specified on command line
For example, -Dnl80211,wext could be used to automatically select
between nl80211 and wext. The first driver wrapper that is able to
initialize the interface will be used.
2009-02-14 16:43:43 +02:00
Jouni Malinen
80bc75f135 New driver capability info: max number of scan SSIDs
The driver wrappers can now inform wpa_supplicant how many SSIDs can
be used in a single scan request (i.e., send multiple Probe Requests
per channel). This value is not yet used, but it can eventually be used
to allow a new scan command to specify multiple SSIDs to speed up
scan_ssid=1 operations. In addition, a warning could be printed if
scan_ssid=1 is used with a driver that does not support it
(max_scan_ssids=0).
2009-02-12 22:05:32 +02:00
Jouni Malinen
073ab58ff5 Fixed a copy-paste error in a function documentation 2009-02-10 11:45:17 +02:00
Helmut Schaa
81e59f1070 Fix a segfault in wpa_supplicant_deinit
If wpa_supplicant is started with -u but the DBus service is already
registered wpa_supplicant will bail out. However, it will segfault
in wpa_supplicant_deinit because global->drv_priv wasn't allocated
yet.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
2009-02-04 21:55:12 +02:00
Jouni Malinen
b9a2e577b4 IBSS RSN: Set the PSK based on network configuration 2009-01-17 17:47:25 +02:00
Jouni Malinen
8be1844071 Process received EAPOL frames in IBSS RSN code if in IBSS mode 2009-01-17 17:25:11 +02:00
Jouni Malinen
53895c3b60 Disable per-BSSID authentication for RSN IBSS
RSN IBSS uses authentication per-STA and that is initialized separately,
so there is no need to enable the per-BSS like authentication that is
used with APs.
2009-01-17 16:41:47 +02:00
Jouni Malinen
11ef8d3578 Added initial step for IBSS RSN support
This commit adds a new build option, CONFIG_IBSS_RSN=y, that can be used
to enable RSN support for IBSS. This links in RSN Authenticator code
from hostapd and adds code for managing per-peer information for IBSS. A
new wpa_cli command or driver event can be used to request RSN
authentication with an IBSS peer. New RSN Authenticator and Supplicant
will be allocated for each peer.

The basic state machine setup code is included in this commit, but the
state machines are not properly started yet. In addition, some of the
callback functions are not yet complete.
2009-01-15 01:21:55 +02:00
Jouni Malinen
6f78f2fb3b Preparations for 0.6.7 release 2009-01-06 20:11:15 +02:00
Jouni Malinen
7e5ba1b916 Mark functions static if not used elsewhere and use proper prototypes 2009-01-03 20:38:42 +02:00
Jouni Malinen
f90c86d4a3 Added Doxygen documentation for WPS code 2009-01-03 19:50:49 +02:00
Jouni Malinen
243869858a Initialize wpa_ie_len to 0 if WPA IE is not set on all paths
The new WPS code was not setting this in error case.
2009-01-02 21:50:22 +02:00
Jouni Malinen
97d3497e29 MFP: Require MFP is it is enabled and AP scan shows support for it
When using ap_scan=1, we know before the association request that MFP
will be supported, so we can as well require it. This helps mac80211 in
configuring whether to enable MFP.
2008-12-31 17:53:31 +02:00
Andriy Tkachuk
a6f06dabb2 Longer auth_timeout for WPS key_mgmt
It seems that for WPS registration we should use the same authentication
timeout as for ieee8021x, no? (See patch attached.) On slow platforms
public keys computation may take around 4-5 seconds (we actually stuck
on this issue).
2008-12-25 20:26:07 +02:00
Jouni Malinen
ac305589a3 Added support for global driver data (shared by multiple interfaces)
Driver wrappers can now register global_init() and global_deinit()
driver_ops handlers to get a global data structure that can be shared
for all interfaces. This allows driver wrappers to initialize some
functionality (e.g., interface monitoring) before any interfaces have
been initialized.
2008-12-22 22:24:31 +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
315ce40a00 Renamed the 'alpha2' variable to 'country' to match with config string 2008-12-09 22:15:47 +02:00
Luis R. Rodriguez
6d1584905c wpa_supplicant: Add support for setting of a regulatory domain
This adds support for setting of a regulatory domain to wpa_supplicant
drivers. It also adds regulatory domain setting for the nl80211 driver.
We expect an ISO / IEC 3166 alpha2 in the wpa configuration file as a
global.
2008-12-09 22:11:14 +02:00
Jouni Malinen
0a40ec6a90 Always clear EAP altAccept and altReject variables on new association
Previously, this was only done when the new connection is using
WPA-Personal. However, it looks like it was possible to trigger an
infinite busy loop if altAccept or altReject were left set to true and
an EAPOL frame is received (eapolEap is set to true). Clearing altAccept
and altReject for each association prevents this loop from happening in
the beginning of the next association.
2008-11-30 16:54:16 +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
c0d041d9a7 WPS: Moved ProbeReq/AssocReq WPS IE building into wps_common.c
This code and the related attributes are not specific to Enrollee
functionality, so wps_common.c is the correct location for them.
2008-11-29 12:44:02 +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
ad08c3633c Added preliminary Wi-Fi Protected Setup (WPS) implementation
This adds WPS support for both hostapd and wpa_supplicant. Both programs
can be configured to act as WPS Enrollee and Registrar. Both PBC and PIN
methods are supported.

Currently, hostapd has more complete configuration option for WPS
parameters and wpa_supplicant configuration style will likely change in
the future. External Registrars are not yet supported in hostapd or
wpa_supplicant. While wpa_supplicant has initial support for acting as
an Registrar to configure an AP, this is still using number of hardcoded
parameters which will need to be made configurable for proper operation.
2008-11-23 19:34:26 +02:00
Jouke Witteveen
e519314ee9 Add RoboSwitch driver interface for wpa_supplicant
Find attached the patch that creates a new driver: roboswitch. This
driver adds support for wired authentication with a Broadcom
RoboSwitch chipset. For example it is now possible to do wired
authentication with a Linksys WRT54G router running OpenWRT.

LIMITATIONS
- At the moment the driver does not support the BCM5365 series (though
adding it requires just some register tweaks).
- The driver is also limited to Linux (this is a far more technical
restriction).
- In order to compile against a 2.4 series you need to edit
include/linux/mii.h and change all references to "u16" in "__u16". I
have submitted a patch upstream that will fix this in a future version
of the 2.4 kernel. [These modifications (and more) are now included in
the kernel source and can be found in versions 2.4.37-rc2 and up.]

USAGE
- Usage is similar to the wired driver. Choose the interfacename of
the vlan that contains your desired authentication port on the router.
This name must be formatted as <interface>.<vlan>, which is the
default on all systems I know.
2008-11-18 16:30:32 +02:00
Jouni Malinen
91a0548210 FT: Do not call wpa_ft_prepare_auth_request() if FT is not used
This saves some extra processing for the non-FT case if FT is built in, but
not used for the association.
2008-09-29 17:28:10 +03:00
Dan Williams
ec5f180a24 Add an optional set_mode() driver_ops handler for setting mode before keys
A bug just got reported as a result of this for mac80211 drivers.

https://bugzilla.redhat.com/show_bug.cgi?id=459399

The basic problem is that since taking the device down clears the keys
from the driver on many mac80211-based cards, and since the mode gets
set _after_ the keys have been set in the driver, the keys get cleared
on a mode switch and the resulting association is wrong.  The report is
about ad-hoc mode specifically, but this could happen when switching
from adhoc back to managed mode.
2008-09-29 16:45:49 +03:00
Jouni Malinen
c684525947 FT: Fixed FTIE for authentication after a failed association 2008-09-01 11:38:13 +03:00
Jouni Malinen
565861976d Added support for using SHA256-based stronger key derivation for WPA2
IEEE 802.11w/D6.0 defines new AKMPs to indicate SHA256-based algorithms for
key derivation (and AES-CMAC for EAPOL-Key MIC). Add support for using new
AKMPs and clean up AKMP processing with helper functions in defs.h.
2008-08-31 22:57:28 +03:00
Jouni Malinen
0b60b0aaad Updated MFP defines based on IEEE 802.11w/D6.0 and use new MFPC/MFPR
This adds most of the new frame format and identifier definitions from IEEE
802.11w/D6.0. In addition, the RSN IE capability field values for MFP is
replaced with the new two-bit version with MFPC (capable) and MFPR
(required) processing.
2008-08-30 14:59:39 +03:00
Dan Williams
1d3c75b3b6 Give adhoc associations a bit more time
Depending on how the driver implements IBSS searching and creation, it
may need to perform one or more scans before successfully completing the
association operation.  Therefore, increase the timeout for IBSS
association operations so that the supplicant doesn't interrupt the
driver as much.
2008-06-04 21:00:09 +03:00
Jouni Malinen
a8e16edc86 Introduced new helper function is_zero_ether_addr()
Use this inline function to replace os_memcmp(addr,
"\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0.
2008-06-03 18:08:48 +03:00
Jouni Malinen
6fc6879bd5 Re-initialize hostapd/wpa_supplicant git repository based on 0.6.3 release 2008-02-27 17:34:43 -08:00