Commit graph

75 commits

Author SHA1 Message Date
Jouni Malinen
03e47c9c3a Share a single function for building extended capabilities element
This makes it easier to update extended capabilities for all uses
within wpa_supplicant.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-12-22 19:17:15 +02:00
Jouni Malinen
e6955ba9f9 WNM: Add WNM-Sleep Mode into Extended Capabilities element
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-12-16 12:45:59 +02:00
Jouni Malinen
215ae884d6 Mark sme_send_authentication() static
This function is not used outside sme.c.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-25 15:47:43 +02:00
Jouni Malinen
62d4980331 Allow PMF to be enabled by default
Previously, PMF (protected management frames, IEEE 802.11w) could be
enabled only with a per-network parameter (ieee80211w). The new global
parameter (pmf) can now be used to change the default behavior to be PMF
enabled (pmf=1) or required (pmf=2) for network blocks that do not
override this with the ieee80211w parameter.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-24 22:21:29 +02:00
Amitkumar Karwar
368b1957a6 Allow OBSS scan and 20/40 coex reports to non-SME drivers
We enable this feature for non-SME drivers as well if
they explicitly indicate need for it.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
2012-11-24 18:08:48 +02:00
Jouni Malinen
6e2020210a Allow OKC to be enabled by default
Previously, OKC (opportunistic key caching, a.k.a. proactive key
caching) could be enabled only with a per-network parameter
(proactive_key_caching). The new global parameter (okc) can now be used
to change the default behavior to be OKC enabled (okc=1) for network
blocks that do not override this with the proactive_key_caching
parameter.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-12 20:07:53 +02:00
Jouni Malinen
21af6d15a8 SAE: Add Finite Cyclic Group negotiation and Send-Confirm
This replaces the previously used bogus test data in SAE messages with
the first real field. The actual SAE authentication mechanism is still
missing and the Scaler, Element, and Confirm fields are not included.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-10-06 19:30:54 +03:00
Jouni Malinen
c10347f246 Add initial parts for SAE
This introduces new AKM for SAE and FT-SAE and adds the initial parts
for going through the SAE Authentication frame exchange. The actual SAE
algorithm and new fields in Authentication frames are not yet included
in this commit and will be added separately. This version is able to
complete a dummy authentication with the correct authentication
algorithm and transaction values to allow cfg80211/mac80211 drivers to
be tested (all the missing parts can be handled with
hostapd/wpa_supplicant changes).

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-30 19:51:07 +03:00
Jouni Malinen
a3f7e5186b Allow non-WPA IEEE 802.1X to be select even if WPA is also enabled
If key_mgmt was set to allow both WPA and non-WPA IEEE 802.1X (i.e., to
IEEE8021X WPA-EAP), non-WPA IEEE 802.1X was rejected while preparing
association parameters. Allow this special case to be handled by
selecting non-WPA case if the scan results for the AP do not include
either WPA or RSN elements.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-15 19:34:04 +03:00
Jouni Malinen
067ffa2696 Convert os_realloc() for an array to use os_realloc_array()
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-13 21:21:23 +03:00
Jouni Malinen
f9884c096a Convert os_zalloc() for an array to use os_calloc()
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-13 20:44:21 +03:00
Arik Nemtsov
b6871ebb17 SME: Correctly check mode HT caps for enabling OBSS scan
Don't assume the 11g mode is always first in the list of mode (sometimes
it isn't). Traverse the array of modes and check the HT40 capability is
turned on for 11g.

Signed-hostap: Arik Nemtsov <arik@wizery.com>
2012-08-11 17:08:54 +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
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
6434ad09d6 Scan only 2.4 GHz band for OBSS scans
Since we are reporting 20/40 BSS coex information only for 2.4 GHz band,
there is no need to run the full scan on dualband cards.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-03 15:55:42 +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
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
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
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
Eyal Shapira
1193dc8fd7 SME: Fix processing of Authentication timeout and failure
current_bss and pending_bssid weren't cleaned up so BSS
kept appearing in the scan results even when it was actually gone.
Use wpa_supplicant_mark_disassoc() to cleanup the wpa_s context
instead of just dropping wpa_state back to DISCONNECTED.

Reported-by: Vishal Mahaveer <vishalm@ti.com>
Signed-hostap: Eyal Shapira <eyal@wizery.com>
2012-01-29 17:44:31 +02:00
Jouni Malinen
14115a1089 SME: Fix processing of Authentication timeout
The wpa_state needs to be dropped back to DISCONNECTED to allow scan
results to trigger a new authentication attempt.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-04 22:27:48 +02:00
Jouni Malinen
ed57c5907e SME: Fix processing of Authentication request failure
The wpa_state needs to be dropped back to DISCONNECTED to allow scan
results to trigger a new authentication attempt. In addition, we can use
wpas_connection_failed() instead of requesting a scan after a fixed time
to make this error case more consistent with other similar error paths
in sme.c.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-04 21:04:24 +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
19df9b0761 Mark local functions static
These functions are not used outside the file in which they are defined.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-18 21:53:36 +02:00
Jouni Malinen
a17539ebcd Remove unnecessary include file inclusion
Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-13 22:13:04 +02:00
Jouni Malinen
b106173a82 Add no_cck parameter for send_action() driver_ops
This can be used to apply the no-CCK rule conditionally depending on
which frame is being sent. The no-CCK rule applies only for P2P
management frames while SA Query and FT use cases do not have similar
restrictions.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-10-29 21:49:46 +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
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
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
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
Eliad Peller
2f4f73b154 nl80211: Change vif type to P2P_CLI upon P2P authentication
Currently, wpa_driver_nl80211_authenticate() changes the interface type
to station. However, in case of P2P, we need to change the interface
type to P2P_CLI.

Add p2p field to the authentication params, and consider it for choosing
the correct interface type.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2011-07-17 20:25:58 +03:00
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
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
Johannes Berg
190b9062b2 P2P: Add option for offloading off-channel TX to the driver
With the new kernel functionality coming to Linux to allow off-channel
TX, we can take advantage of that in the P2P code that currently uses
remain-on-channel. If a driver advertises support for it, it will be
asked to handle off-channel TX by itself.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-12-29 13:59:17 +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
Jouni Malinen
aca0160548 nl80211: Set cipher suites when using user space SME
Previously, pairwise and group cipher suites were configured only
when kernel SME (nl80211 connect API) was used. However, mac80211
needs this information even in the user space SME case for one
thing: to disable HT when TKIP/WEP is used. Add
NL80211_ATTR_CIPHER_SUITES_PAIRWISE to fix this special case with
user space SME. This allows mac80211 to disable HT properly when
the AP is configured with configuration that is not allowed.
2010-12-13 21:08:53 +02:00
Jouni Malinen
e5ad96b745 SME: Optimize recovery from assocication command failures
mac80211 can indicate this mainly because of channel selection
conflicts with other vifs. If there is another BSS on another
channel, we should try to connect to it instead.
2010-11-26 17:37:22 +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
Jouni Malinen
7e6646c794 SME: Fix re-try after auth/assoc timeout/failure
There were various issues in how the SME (i.e., nl80211-based driver
interface) handled various authentication and association timeouts and
failures. Authentication failure was not handled at all (wpa_supplicant
just stopped trying to connect completely), authentication timeout
resulted in blacklisting not working in the expected way (i.e., the same
BSS could be selected continuously), and association cases had similar
problems.

Use a common function to handle all these cases and fix the blacklist
operation. Use smaller delay before trying to scan again during the
initial cycle through the available APs to speed up connection. Add
a special case for another-BSS-in-the-same-ESS being present to
speed up recovery from networks with multiple APs doing load balancing
in various odd ways that are deployed out there.
2010-11-25 22:00:04 +02:00
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
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
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
Samuel Ortiz
7e26053a2c sme: Check for prev_bssid from sme_event_disassoc
wpa_s->bssid is already cleared by mark_disassoc() when we're getting the
disassociation event for the case where wpa_supplicant requested
disassociation. wpa_s->sme.prev_bssid holds the BSSID we need to check
for, so use that instead.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-18 21:23:26 +03:00
Samuel Ortiz
cb1583f64b sme: Try all authentication algorithms when the first one fails
When passing several authentication algorithms through auth_alg, we
should try all of them when the first one fails. The wext driver goes
through the connect nl80211 command and the retries are then handled by
the kernel. The nl80211 doesn't and we have to handle that from
userspace.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-17 16:39:33 +03:00
Jouni Malinen
6e3f7173f1 SME: Retry scan after authentication failure
This is needed to avoid getting stuck if driver fails authentication
request for some reason.
2010-07-17 20:27:19 -07:00
Jouni Malinen
9efc3f2a4b SME: Handle association without own extra IEs
Need to check for this before calling ieee802_11_parse_elems().
2010-04-11 12:19:02 +03:00
Jouni Malinen
0d7b44099f SME: Do not try to use FT over-the-air if PTK is not available 2010-04-10 22:39:49 +03:00