Commit graph

805 commits

Author SHA1 Message Date
Jouni Malinen
9ebce9c546 nl80211: Do not use void pointer for driver_ops used internally
This allows some more pointer type validation at compile time.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-02-03 15:46:47 +02:00
Ben Greear
085b29f1fe hostapd: Fix crash when scan fails
When scan failed, the wpa_driver_nl80211_scan method tried
to recursively call itself, but it passed in the wrong argument
for the void*, and so then it crashed accessing bad memory.

With this fix, hostapd still will not retry the scan later, but
at least it will exit cleanly and won't polute the file system
with core files.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2013-02-03 13:51:54 +02:00
Jouni Malinen
8b706a99b8 nl80211: Add MFP information for NL80211_CMD_CONNECT
This was previously included only with NL80211_CMD_ASSOCIATE, but the
information is as useful (if not even more useful) for
NL80211_CMD_CONNECT. It should be noted that cfg80211 does not yet use
this attribute with NL80211_CMD_CONNECT, but that can be added easily.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-01-12 17:51:54 +02:00
Johannes Berg
05a8d4221d nl80211: Pass station VHT capabilities to kernel
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-01-12 17:51:52 +02:00
Johannes Berg
89b800d726 nl80211: Support VHT configuration
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-12 17:51:52 +02:00
Jouni Malinen
708bc8e0e4 nl80211: Restore previous nlmode if set_freq for AP mode fails
wpa_driver_nl80211_ap() returned error if set_freq failed, but left the
previously set nlmode to GO/AP. While this should not be issue for most
purposes, it leaves the interface in somewhat unexpected state and could
potentially affect operations prior to next connection attempt. Address
this by restoring the previous nlmode if AP mode cannot be started for
some reason.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-01-08 00:34:08 +02:00
Sven Eckelmann
a5e1eb2092 nl80211: Run TKIP countermeasures in correct hostapd_data context
hostapd can run with different VIF when using nl80211. Events about MIC
failures have to be processed in context of the VIF which received it
and not in context of the primary VIF. Otherwise the station belonging
to this VIF may not be found in the primary VIF station hash and
therefore no countermeasures are started or the countermeasures are
started for the wrong VIF.

Signed-hostap: Sven Eckelmann <sven@open-mesh.com>
Signed-hostap: Simon Wunderlich <simon@open-mesh.com>
2012-12-22 16:19:52 +02:00
Vladimir Kondratiev
7829894c21 Introduce 60 GHz band
Basic support for the 60 GHz band. Neither P2P nor WPS are yet taken
care off. Allows to start AP with very simple config:

network={
        ssid="test"
        mode=2
        frequency=60480
        key_mgmt=NONE
}

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-12-18 11:50:35 +02:00
Jouni Malinen
bd896433af nl80211: Register to process WNM-Sleep Mode Response frames
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-12-16 12:42:26 +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
6201b052c8 nl80211: Add support for TDLS request event from the driver
The NL80211_CMD_TDLS_OPER command can be used as an event based on a
recent cfg80211 commit, so add code to map that to internal
wpa_supplicant event to request TDLS link setup/teardown.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-19 17:00:07 +02:00
Jouni Malinen
1ce0aa044c Remove unused disassociate() driver_ops
Commits 07783eaaa0 and
3da372fae8 removed the only users of the
disassociate() driver operation, so these driver wrapper functions can
also be removed now.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-15 00:06:12 +02:00
Jouni Malinen
9d7a63dc20 nl80211: Avoid strict-aliasing warning with gcc 4.7
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-11 20:28:27 +02:00
Christopher Wiley
a8c5b43ad3 nl80211: Roam correctly through cfg80211 without SME
Change the nl80211 driver in wpa_supplicant to correctly handle
connecting to a new AP through cfg80211 without SME capability. As
before, the driver will disconnect from the previously associated AP,
but now we attempt to immediately connect to our intended AP. This
prevents us from blacklisting the AP we were trying to connect to
because of a semantic mismatch between cfg80211 and wpa_supplicant. The
disconnect/connect patch generates a local disconnect nl80211 event
which we discard because we're already correctly tracking the pending
association request.

In detail:

cfg80211 does not support connecting to a new BSS while already
connected to another BSS, if the underlying driver doesn't support
separate authenticate and associate commands. wpa_supplicant is written
to expect that this is a supported operation, except for a little error
handling that disconnects from the current BSS when roaming fails and
relies on autoconnect logic to reconnect later. However, this failure to
connect is incorrectly attributed to the new AP we attempted to
associate with, rather than a local condition in cfg80211.

The combined effect of these two conditions is that full-mac drivers
accessible through cfg80211 but without SME capability take a long time
to roam across BSS's because wpa_supplicant will:
1) Fail to associate for local reasons
2) Disconnect and return that the association request failed
3) Blacklist the association target (incorrectly)
4) Do a scan
5) Pick a less desirable AP to associate with

Signed-hostap: Christoper Wiley <wiley@chromium.org>
2012-11-11 16:15:29 +02:00
Jouni Malinen
7d81932d27 nl80211: Make debug log more readable for driver events
Print the full name of the nl80211 event message in the debug log to
make it easier to parse the debug log.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-03 13:54:43 +02:00
Jouni Malinen
569fed9045 nl80211: Add support for SAE operations
This uses the recent cfg80211 changes to allow SAE authentication to be
implemented with the nl80211 driver interface.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-10-24 09:10:42 +03:00
Jouni Malinen
369c8d7bcd Reserve AKM and cipher suite values
These values are used with WAPI and CCX and reserving the definitions
here reduces the number of merge conflicts with repositories that
include these functions.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-30 20:26:55 +03:00
Mykyta Iziumtsev
817762d9c4 nl80211: Don't send BSSID with disconnect command
NL80211_CMD_DISCONNECT doesn't need BSSID, because cfg80211
uses locally saved value.

Signed-hostap: Mykyta Iziumtsev <mykyta.iziumtsev@gmail.com>
2012-09-29 19:01:50 +03:00
Felix Fietkau
73a3c6ffca nl80211: Use the monitor interface if socket tx status is not supported
Fixes hostapd on recent compat-wireless builds with older kernels.

Signed-hostap: Felix Fietkau <nbd@openwrt.org>
2012-09-23 13:28:31 +03:00
Felix Fietkau
92d521d89c hostapd: Send EAPOL frames from the VO queue if WMM is active
This avoids extra latency caused by establishing an aggregation session
and makes the initial connection attempt more reliable

Signed-hostap: Felix Fietkau <nbd@openwrt.org>
2012-09-15 22:40:00 -07:00
Felix Fietkau
c34e618d47 hostapd: Fix WDS VLAN bridge handling
This patch fixes an issue where removing a WDS VLAN interface also
removed the main AP interface from the same bridge.

Signed-hostap: Felix Fietkau <nbd@openwrt.org>
2012-09-15 22:38:14 -07:00
Jouni Malinen
d732463c47 nl80211: Register read_sta_data() handler for station only builds
This driver_op can now be used in station mode, too, to fetch
information about the connection with the AP, so allow this to be used
even if wpa_supplicant is built without AP mode support.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-05 17:07:03 +03:00
Yuhao Zheng
dc7785f845 wpa_supplicant: Add PKTCNT_POLL command to get TX/RX packet counters
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2012-09-05 17:02:02 +03:00
Jouni Malinen
eb7719ff22 Add support for using GCMP cipher from IEEE 802.11ad
This allows both hostapd and wpa_supplicant to be used to derive and
configure keys for GCMP. This is quite similar to CCMP key
configuration, but a different cipher suite and somewhat different rules
are used in cipher selection. It should be noted that GCMP is not
included in default parameters at least for now, so explicit
pairwise/group configuration is needed to enable it. This may change in
the future to allow GCMP to be selected automatically in cases where
CCMP could have been used.

This commit does not included changes to WPS or P2P to allow GCMP to be
used.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-29 11:52:15 +03:00
Wei-Jen Lin
e3e234fa35 nl80211: Set P2P multichan concurrency based on interface combinations
Use the NL80211_IFACE_COMB_NUM_CHANNELS value > 1 as a trigger for
enabling support for P2P multichannel channel concurrency. This does not
handle all possible details of enforcing driver capabilities, but it is
a good first step for allowing nl80211 drivers to enable multichannel
concurrency.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-28 19:31:58 +03:00
Jouni Malinen
75227f3ada nl80211: Print an error if WDS STA interface cannot be set up
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-19 18:28:55 +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
Jouni Malinen
1d0c6fb1eb nl80211: Fix re-enabling of 802.11b rates after P2P use
Commit a11241fa11 removed the 802.11b rate
enabling/disabling code from wpa_driver_nl80211_set_mode() and while
doing that, removed the only place where drv->disabled_11b_rates was
set. Fix this by updating the flag in nl80211_disable_11b_rates(). In
addition, re-enable the 802.11b rates when changing to non-P2P mode.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-10 11:48:57 +03:00
Rajkumar Manoharan
edb9bfba89 nl80211: Disable 11b rates on configuring P2P interface
Right now 11b rates are masked out while creating a P2P interface,
but this is always failing as the interface is down. Most drivers
allow to configure rates only when the interface is UP and running.
So let us disable 11b rates when interface type is changed into a
P2P type and it is UP and running.

Signed-hostap: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
2012-08-10 11:35:33 +03:00
Jouni Malinen
df2f9ec6b2 nl80211: Add nla_put_u32() wrapper for Android
The system/core/libnl_2 re-implementation in AOSP does not include
nla_put_u32().

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-09 18:45:39 +03:00
Jouni Malinen
95ac3bf49f nl80211: Share common function for scan parameters
trigger_scan and start_sched_scan can share code for building the
common attributes.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-07 17:48:52 +03:00
Jouni Malinen
f0494d0f95 nl80211: Check nla_put_nested() return value and handle errors
Couple of functions did not verify that nla_put_nested() succeeded. Fix
these by checking the return value and handling error cases cleanly.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-07 17:27:55 +03:00
Jouni Malinen
6afbc3d698 nl80211: Fix netlink error paths in sched_scan() handler
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-07 17:11:08 +03:00
Paul Stewart
21270bb4b3 Fix a couple memory leaks
Found using valgrind.

Signed-hostap: Paul Stewart <pstew@chromium.org>
2012-08-04 20:10:08 +03:00
Jouni Malinen
e509167495 Add new drv_flag for indicating user space AP MLME
This makes it easier for hostapd to determine at runtime which
operations to use.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-01 10:34:35 +03:00
Thomas Pedersen
bf8d6d2430 nl80211: Support setting sched scan RSSI threshold
Allow the user to configure an RSSI threshold in dBm below which the
nl80211 driver won't report scan results. Currently only supported
during scheduled (PNO) scans.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-07-25 16:56:43 +03:00
Mahesh Palivela
990933fb1d nl80211: Save VHT capabilities from the driver
Save VHT capabilities coming through nl80211 within hostapd.

Signed-hostap: Mahesh Palivela <maheshp@posedge.com>
2012-07-04 21:42:56 +03:00
Thomas Pedersen
1b487b8b1e nl80211: Handle CH_SWITCH event
Some drivers may independently decide to switch channels. Handle this by
updating the hostapd and wpa_supplicant AP and GO configuration.

Signed-hostap: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
2012-06-25 14:45:14 +03:00
Johannes Berg
cad0f50e02 nl80211: Simplify cbmsg buffer
The control message received from the kernel needs some space, but
there's no need for the strange typing that breaks clang compilation.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-06-23 20:37:09 +03:00
Johannes Berg
24b5bd8b42 nl80211: Use safe list iteration
In certain cases like PBC session overlap it appears to be possible that
an interface is removed due to an event handled on it, this leads to
list corruption. Use safe iteration to prevent this issue.

Reported-by: Nirav Shah <nirav.j2.shah@intel.com>
Reported-by: Neeraj Kumar Garg <neerajkg@broadcom.com>
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
intended-for: hostap-1
2012-06-04 20:25:11 +03:00
Jouni Malinen
b5671498bf nl80211: Use wait_time with AP mode driver SME for offchannel
When sending an offchannel frame (mainly, P2P Invitation Request), the
wait_time parameter was hardcoded to 0 for drivers that implement AP
mode SME. This is not correct and can cause problems for drivers that
support offloading of off-channel operations with driver/firmware based
AP SME.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-11 18:24:31 +03:00
Jouni Malinen
2e3e456623 nl80211: Add more debug info on NL80211_CMD_FRAME uses
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-11 18:22:53 +03:00
Jithu Jance
d3bd0f057c nl80211: Extend shared_freq to handle AP/GO mode interfaces
Signed-hostap: Jithu Jance <jithu@broadcom.com>
2012-04-08 20:44:05 +03:00
Jouni Malinen
873d0fcfd3 nl80211: Skip set_mode event subscription during deinit
There is no need to subscribe to event messages during deinit process,
so skip this to avoid unnecessary operations and to keep the debug logs
a bit cleaner.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-04-06 18:58:44 +03:00
Jouni Malinen
2e9f078c8d nl80211: Indicate disconnect event as deauthentication
This was previously indicated as disassociation, but the P2P group
session ending case expect a deauthentication notification. Since the
cfg80211 disconnection event does not really indicate which frame was
used, the easiest approach for now seems to be to just indicate these
as deauthentication events.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-04-03 17:11:22 +03:00
Eliad Peller
3c29244eb7 P2P: Add deinit_p2p_cli op to clear P2P client driver state
On P2P group removal, the GO is deinitialized correctly (and the vif
mode is set back to sta in case of nl80211), but the P2P client mode
wasn't deinitialized, and the nl80211 vif stays in P2P client mode.

Add a new deinit_p2p_cli op (similar to deinit_ap), which currently only
sets the interface back to station mode.

Signed-hostap: Eliad Peller <eliad@wizery.com>
intended-for: hostap-1
2012-04-01 21:41:23 +03:00
Johannes Berg
baf513d695 Pass signal strength through, fix units
The signal strength is currently never used as the only driver reporting
it is nl80211 which uses IEEE80211_RADIOTAP_DB_ANTSIGNAL which is never
populated by the kernel. The kernel will (soon) populate
IEEE80211_RADIOTAP_DBM_ANTSIGNAL instead though, so use that.

Also, since it was never really populated, we can redefine the signal
field to be in dBm units only.

My next patch will also require knowing the signal strength of probe
requests throughout the code (where available), so add it to the
necessary APIs.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-04-01 18:48:12 +03:00
Johannes Berg
da873dbb06 nl80211: Report signal strength from nl80211
Report signal strength from nl80211 events to the higher layers.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-04-01 12:39:33 +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
Vasanthakumar Thiagarajan
a0133ee1c9 nl80211: Make use of driver's capability to detect inactive stations
When drivers advertise their capability to free up inactive
stations based on ap_max_inactivity, send the inactivity period
timeout to driver in NL80211_ATTR_INACTIVITY_TIMEOUT. This
introduces a WPA_DRIVER_FLAGS (WPA_DRIVER_FLAGS_INACTIVITY_TIMER)
so that the inactivity period will be sent only when this capability
bit is set.

Signed-hostap: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
2012-03-27 20:49:44 +03:00
Aarthi Thiruvengadam
e1bd4e1934 nl80211: Fix deauth/disassoc for AP mode SME-in-driver case
When the driver (or firmware) implements AP mode SME, the use of raw
management frame TX functions is not working properly at the moment. As
an initial step, convert these AP mode operations to use
NL80211_CMD_DEL_STATION and do not claim that driver provides TX status
for deauth/disassoc frames. While this does not address all use cases
(e.g., reason code is not specified in the command), this fixes number
of issues where the station does not get disconnected properly.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-03-14 14:06:06 -10:00
Jouni Malinen
d1f4942ba1 nl80211: Filter unexpected interface added/up events
It looks like a RTM_NEWLINK event claiming the interface to be UP is
delivered just before removing an interface after having first indicated
that the interface was going down/removed. Ignore this event if the
interface is not present anymore at the moment the event is processed.
This fixes issues where an interface that was re-added after being
removed did not get reconfigured properly.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-02-18 13:13:23 +02:00
Jouni Malinen
8a6a1e1b14 nl80211: Indicate p2p_probe in debug log as scan parameter
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-18 12:39:01 +02:00
Antonio Quartulli
e640888c5e IBSS RSN: Support authorization
In IBSS RSN cfg80211/mac80211 now waits for userspace to authorize new
stations. This patch makes wpa_supplicant notify the driver when a
station can be considered authorized.

Signed-hostap: Antonio Quartulli <ordex@autistici.org>
2012-02-12 21:12:22 +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
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
Yogesh Ashok Powar
3dd1d8906d nl80211: Subscribe management frames for WPA_IF_AP_BSS types
In multiple BSSes scenario for the drivers that do not use
monitor interface and do not implement AP SME, RX MGMT
frame subscription happens only for the default bss (first_bss).

Subscribe for RX MGMT frames for such BSSes.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
2012-01-29 12:34:38 +02:00
Yogesh Ashok Powar
a7a6af4cba nl80211: Derive frequency for BSSes other than the first
Commit e4fb216769 moved frequency
storage from driver struct to bss struct and is assigned in
wpa_driver_nl80211_set_freq. As this wpa_driver_nl80211_set_freq is
triggered only on the first_bss, bss->freq for other BSSes is never
being set to the correct value. This sends MLME frames on frequency zero
(initialized value of freq) for BSSes other than the first.

To fix this derive frequency value from first_bss.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
2012-01-29 12:34:32 +02:00
Nicolas Cavallari
913e3cf794 nl80211: Add IBSS BSSID fixing support
If a BSSID and fixed-bssid are requested, fix the BSSID, so
the driver does not attempt to merge.

Signed-hostap: Nicolas Cavallari <cavallar@lri.fr>
2012-01-28 11:35:32 +02:00
Jouni Malinen
552310680c nl80211: Fix send_action on off-channel in P2P GO role
A P2P Action frame may need to be sent on another channel than the GO's
operating channel. This information was lost in
wpa_driver_nl80211_send_action() in the case the interface was in AP
mode. Pass the frequence and related parameters to send_mlme mechanism
to allow the correct frequence to be used with the send frame command in
AP (P2P GO) mode.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-01-26 17:44:11 +02:00
Deepthi Gowri
d8d6b32eec nl80211: P2P: Pass cookie parameter in send action frame
The cookie value needs to be fetched in GO mode, too, to be able to
indicate TX status callbacks with drivers that handle AP mode SME
functionality internally. This fixes issues with client discoverability
where TX status callback for GO Discoverability Request is needed to
trigger the GO to send Device Discoverability Response.
2012-01-23 20:12:06 +02:00
Jouni Malinen
3d9975d5b0 Do not trigger fast reconnection on locally generated deauth/disassoc
The deauthentication and disassociation events from nl80211 were being
processed identically regardless of whether the frame was generated by
the local STA or the AP. This resulted in fast reconnection mechanism
getting triggered even in the case where the disconnection was detected
locally (e.g., due to beacon loss) while this was supposed to happen
only in the case where the AP is sending an explicit Deauthentication
or Disassociation frame with a specific reason code.

Fix this by adding a new deauth/disassoc event variable to indicate
whether the event was generated locally.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-01-01 18:55:58 +02:00
Jouni Malinen
ee9fc67ab7 nl80211: Mark Beacon event debug excessive
This can show up way too frequently in AP mode to make debug logs
readable at debug level.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-30 14:10:15 +02:00
Jouni Malinen
b9fd8ce804 nl80211: Fix NL80211_CMD_FRAME to not try offchannel without driver support
The offchanok parameter is hardcoded to one in number of paths and that
added NL80211_ATTR_OFFCHANNEL_TX_OK attribute to NL80211_CMD_FRAME
unconditional. cfg80211 rejects this with EINVAL if the driver does not
indicate support for offchannel TX. Fix this by not requesting
offchannel TX depending on driver capabilities. Remain-on-channel
operation was used for those cases anyway, so the additional attribute
was not really needed for these in the first place.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-29 14:15:31 +02:00
Jouni Malinen
0d891981db nl80211: Do not stop AP mode Probe Request reporting on Listen stop
When nl80211_setup_ap() has enabled Probe Request reporting, this must
not be disabled when P2P Listen state is stopped to avoid breaking AP
mode operations. This could happen, e.g., if a Probe Request frame was
received from a P2P device that the we are trying to invite to our group
(i.e., when operating in GO role). p2p_probe_req_rx() calls
p2p_invite_start() in this case and that ends up calling
p2p->cfg->stop_listen() which calls probe_req_report() driver op.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-27 20:32:29 +02:00
Jouni Malinen
a6cc0602dd nl80211: Fix mgmt RX for device SME in AP mode without monitor
Drivers that use device SME in AP mode may still need to be
subscribed for Action frame RX when monitor interface is not used.
This fixes number of P2P GO operations with ath6kl.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-23 18:15:07 +02:00
Jouni Malinen
536062f274 nl80211: Fix use_monitor driver capability for non-mac80211 drivers
Poll command may be enough for mac80211 to figure out whether monitor
interface is to be used, but this change did not take into account
non-mac80211 drivers that support AP mode without monitor interface.
For example, ath6kl needs to get use_monitor disabled.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-23 18:13:01 +02:00
Jouni Malinen
82554b100c nl80211: Show station flush failures in debug log
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-23 18:12:07 +02:00
Jouni Malinen
36488c054c nl80211: Add debug prints for mgmt RX subscription
This makes it easier to figure out which management frames has been
subscribed to for RX events.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-23 18:10:59 +02:00
Jouni Malinen
b088cf82c9 Android: nl80211: Work around limited genl_ctrl_resolve()
Android ICS system/core/libnl_2 has very limited genl_ctrl_resolve()
implementation that cannot handle names other than nlctrl. Work
around that by implementing more complete genl_ctrl_resolve()
functionality within driver_nl80211.c for Android builds.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-12-21 13:33:41 +02:00
Jason Young
5d06163714 AP: Pass station's WMM configuration to driver wrappers
This updates a previous patch did more or less the same thing by
providing the qosinfo as a single variable to the driver wrappers.

Signed-hostap: Jason Young <jason.young@dspg.com>
2011-12-17 12:38:06 +02:00
Jouni Malinen
9e088e743d nl80211: Fix memory leaks on nla_put_failure error paths
Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-17 12:27:11 +02:00
Jason Young
5883168ae0 nl80211: Fix memory leak on nla_put_failure error paths
Signed-hostap: Jason Young <jason.young@dspg.com>
2011-12-17 12:19:36 +02:00
Eliad Peller
774bfa62ce nl80211: Send uapsd_queues and max_sp values on STA addition
When a new station is added, send its configured WMM params.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2011-12-17 11:59:34 +02:00
Eliad Peller
70619a5d8a AP: Consider U-APSD driver support
Check whether the driver advertises support for U-APSD
in AP mode, and evaluate wmm_uapsd only in this case.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2011-12-17 11:45:53 +02:00
Jouni Malinen
a97bde0af4 Android: Fix PNO start function conversion
The wpa_hexdump_ascii() call did not get converted properly and this
was missed becaused of it getting defined out from the build. Anyway,
this better use the correct variable names should that debug print
ever be enabled for Android.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-15 01:06:02 +02:00
Jouni Malinen
aa543c0c33 nl80211: Fix CONFIG_TDLS=y build
Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-12 16:32:07 +02:00
Jouni Malinen
671a50392d nl80211: Clean up info on netdev or nl80211 not found errors
Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-11 18:51:55 +02:00
Arik Nemtsov
5ed3354617 nl80211: Send Probe Response template to the driver
Pass the raw Probe Response template to kernel via netlink using the
set_ap() driver callback. The data is sent as one of the Beacon
attributes.

Signed-hostap: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2011-12-10 21:11:32 +02:00
Arik Nemtsov
562c9d976e nl80211: Propagate Probe Response offload capabilities from kernel
Translate nl80211 flags to wpa_supplicant flags for Probe Response
offload support. The existence of the nl80211 PROBE_RESP_OFFLOAD_SUPPORT
attribute means Probe Response offload is supported. The value of the
attribute is a bitmap of supported protocols.

Signed-hostap: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
2011-12-10 21:11:32 +02:00
Johannes Berg
341eebee38 nl80211: Store own address in BSS
Storing the address in the BSS instead of the DRV struct makes it usable
for hostapd and thus gets rid of the linux_get_ifhwaddr() call when
receiving a spurious frame.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-10 11:56:31 +02:00
Jouni Malinen
481234cf1a nl80211: Remove unnecessary struct nl80211_handles wrapper
Since the nl_cache is not used anymore, there is no need for maintaining
the struct nl80211_handles wrapper for struct nl_handle. Clean this up
by using nl_handle directly.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-06 19:47:59 +02:00
Johannes Berg
3088e4e52d nl80211: Listen to unexpected 4addr events
Monitor-less AP mode had lost the ability to do
4addr WDS, this adds it back.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-06 19:32:41 +02:00
Johannes Berg
d6c9aab8d2 nl80211: Use global event socket for multicast events
This is a rewrite of Ben Greear's patch, making the
nl80211 code use just a single multicast event socket.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-06 19:30:43 +02:00
Johannes Berg
e32ad281ca nl80211: Register for Beacon frames in AP mode
When running AP mode, we need to receive beacons over overlapping BSSes
to handle protection. Use the new nl80211 command for this. As the
command works per wiphy (and we don't want to receive the Beacon frames
multiple times) add an abstraction that keeps track of per-wiphy data.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-06 18:39:57 +02:00
Johannes Berg
02bb32c393 nl80211: Subscribe to spurious class3 frame events
These events are necessary to send deauth frames to
stations sending spurious data frames. Subscribe to
them on the per-BSS event socket.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-06 18:29:45 +02:00
Johannes Berg
a11241fa11 nl80211: Use nl80211 for mgmt TX/RX in AP mode
To achieve this, multiple things are needed:
 1) since hostapd needs to handle *all* action frames,
    make the normal registration only when in a non-AP
    mode, to be able to do this use the new socket
 2) store the frequency in each BSS to be able to give
    the right frequency to nl80211's mgmt-tx operation
 3) make TX status processing reject non-matched cookie
    only in non-AP mode

The whole thing depends on having station-poll support
in the kernel. That's currently a good indicator since
the kernel patches are added together.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-06 18:24:00 +02:00
Jouni Malinen
8c3ba0784e nl80211: Use driver event to indicate failure on authentication retry
When using authentication retry within driver_nl80211.c, a failure on the
second attempt has to be indicated with a driver event since the return
code from wpa_driver_nl80211_authenticate() is not actually delivered to
the core code in that case.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-04 22:28:30 +02:00
Jouni Malinen
536fd62dba nl80211: Recover from auth req ENOENT with a scan
cfg80211 rejects NL80211_CMD_AUTHENTICATE with ENOENT if the BSS entry
for the target BSS is not available. This can happen if the cfg80211
entry has expired before wpa_supplicant entry (e.g., during a suspend).
To recover from this quickly, run a single channel scan to get the
cfg80211 entry back and then retry authentication command again. This
is handled within driver_nl80211.c to keep the core wpa_supplicant
implementation cleaner.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-04 21:53:56 +02:00
Johannes Berg
9f12614b8c nl80211: Do not encrypt IEEE 802.1X WEP EAPOL
Set the NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT flag for nl80211 to tell
drivers (mac80211) to not encrypt the EAPOL frames for WEP IEEE 802.1X.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-03 20:46:12 +02:00
Johannes Berg
cc7a48d1f4 nl80211: Allocate nl CB for BSS RX
In preparation for things that receive on a BSS-specific handle,
allocate a CB for it and hook it up to receive functions.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-03 20:14:53 +02:00
Johannes Berg
f06aedd92f nl80211: Rename process_event
The next patch will add process_bss_event, rename process_event to
process_drv_event to differentiate between them.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-03 20:10:44 +02:00
Johannes Berg
a4ae123c3f nl80211: Pass cb to eloop function
By passing the nl_cb as the context to the eloop function we can
(in the next patch) use the same eloop function for BSS events.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-03 20:07:54 +02:00
Johannes Berg
1afc986d84 nl80211: Use one CB for driver event RX
There's no need to clone the CB all the time
and then assign it, just use a constant one.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-03 20:00:11 +02:00
Johannes Berg
e4fb216769 nl80211: Store frequency in bss struct
Storing the frequency in the bss struct allows using it for frame
commands in AP mode and not relying on the driver struct as much, which
is good for hostapd mode.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-03 19:55:22 +02:00
Johannes Berg
3fd1cefb81 nl80211: Move AP SME setup to mode change
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-03 19:47:01 +02:00
Johannes Berg
32ab485503 nl80211: Use socket error queue for EAPOL TX status
This will allow getting TX status for EAPOL frames
sent as data frames if the driver supports it.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-12-03 19:32:23 +02:00
Jouni Malinen
aef85ba204 nl80211: Ignore interface up event if interface is down
The RTM_NEWLINK even can have IFF_UP flag even if the interface is
down. Do not generate EVENT_INTERFACE_ENABLED event based on such a
message.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-03 13:18:57 +02:00
Jouni Malinen
3b1c7bfdc5 nl80211: Use binary hexdump for scan IEs instead of text
The IEs are binary data, so there is not much point in trying
to show them as ASCII data in debug prints.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-03 12:47:34 +02:00
Jouni Malinen
e5693c4775 Merge set_rate_sets() driver_ops into set_ap()
Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-03 12:16:03 +02:00
Jouni Malinen
5f17b3ee9f Remove unused parameters from set_rate_sets()
Only setting of the basic rate set was supported, so remove the
unused parameters.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-03 11:57:13 +02:00
Jouni Malinen
d03e8d118c nl80211: Merge ap_isolate configuration into nl80211_set_bss()
Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-03 11:43:18 +02:00
Dmitry Shmidt
216eede830 Android: nl80211: Add Android specific PNO configuration
This is based on the Android driver_cmd changes that are converted to
use the sched_scan/stop_sched_scan driver_ops for the case where the
driver does not support the new nl80211 commands.

Change-Id: Iaedc340f84650af422bd2ea57d2a8b0a9d4a5330
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2011-11-29 15:18:52 +02:00
Jouni Malinen
fb67eec6f8 nl80211: Do not set sched_scan filter if driver does not support it
cfg80211 will reject the NL80211_CMD_START_SCHED_SCAN if too many
match sets are requested. To avoid being completely unable to start
any scheduled scans, skip setting these filters if the driver did
not advertise support for large enough number of match sets.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-11-25 17:46:00 +02:00
Jouni Malinen
29f338af26 nl80211: Implement set_p2p_powersave for legacy_ps changes
This adds initial implementation of set_p2p_powersave to allow legacy PS
mode to be configured. P2P PS parameters are not yet supported.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2011-11-25 13:11:22 +02:00
Johannes Berg
88df0ef74f nl80211: Set offchannel-OK selectively
It's not really valid to send off-channel in all cases,
so pass whether it should be allowed or not and don't
set it in the AP case.

Also, to get the right ifindex for hostapd, pass a bss
pointer instead of the drv pointer.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-11-19 19:56:34 +02:00
Johannes Berg
221a59c9b6 nl80211: Move preq NL handle into BSS
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-11-19 19:48:49 +02:00
Jouni Malinen
ddc5327139 nl80211: Add no_ack support for NL80211_CMD_FRAME
This is needed to allow no-ACK operation with Probe Response frames
in P2P Listen state.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-19 19:32:05 +02:00
Helmut Schaa
fab2533604 nl80211: Implement noack policy for send_mlme
Signed-hostap: Helmut Schaa <helmut.schaa@googlemail.com>
2011-11-19 19:22:13 +02:00
Helmut Schaa
8cfa3527e1 Allow MLME frames to be sent without expecting an ACK (no retries)
In some situations it might be benefical to send a unicast frame without
the need for getting it ACKed (probe responses for example). In order to
achieve this add a new noack parameter to the drivers send_mlme callback
that can be used to advise the driver to not wait for an ACK for this
frame.

Signed-hostap: Helmut Schaa <helmut.schaa@googlemail.com>
2011-11-19 19:02:05 +02:00
Johannes Berg
397188521d nl80211: Support in-kernel station poll
If the kernel supports this, don't use manual null
data frame transmissions. This is one thing to get
rid of cooked monitor interfaces.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-11-19 14:23:46 +02:00
Johannes Berg
d12dab4c6f nl80211: Use non-receiving socket for EAPOL TX
The non-monitor TX currently uses a normal L2 abstraction
socket, but that will also receive frames we don't want,
so use a plain socket that isn't bound for RX. This might
be possible using the L2 abstraction, but we need a plain
socket later for getting TX status events here.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-11-19 14:00:53 +02:00
Johannes Berg
61cbe2ffd8 nl80211: Use device AP SME capability
This changes the auto-detection of whether or not the device contains
the AP SME away from monitor interface addition failing to the explicit
attribute in nl80211. Keep the old auto-detection for a little while so
that ath6kl isn't broken right away.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-11-19 13:42:49 +02:00
Jithu Jance
57ebba598d nl80211: Implement shared_freq
This patch implements shared_freq handler for driver_nl80211.c. If a
"p2p_group_add" happens after legacy STA association, then this patch
will help to start the GO on the same frequency. This is useful when
supplicant is started on multiple interface running over a singly "PHY"
and the station interface is not used for the P2P device operations.

For example, wpa_supplicant -iwlan0 ..  -N -iwlan1 ... and wlan0 is used
for station connection and wlan1 as the P2P device interface.

Signed-hostap: Jithu Jance <jithu@broadcom.com>
2011-11-19 11:23:49 +02:00
Ben Greear
3b7ea88047 nl80211: Make MLME failure messages unique
Without this, it is impossible to tell exactly which
MLME code returned the error.

Also, convert to wpa_dbg so that we get device names
in the messages.

Signed-hostap: Ben Greear <greearb@candelatech.com>
2011-11-18 23:41:52 +02:00
Dan Williams
98ac6763ff nl80211: Fix UNSPEC signal quality reporting
r->level got assigned so it's clearly not INVALID; instead
r->qual should be invalid.

Signed-hostap: Dan Williams <dcbw@redhat.com>
2011-11-18 23:23:45 +02:00
Johannes Berg
335d42b1a6 nl80211: Get rid of family/cache objects
All we really need is the family ID, and we can
get that with genl_ctrl_resolve() and then don't
need to worry about family/cache objects.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-11-16 16:42:49 +02:00
Jouni Malinen
a5c696adb4 nl80211: Verify that global driver pointer is not NULL
driver_nl80211.c assumes that global driver pointer is set, so better
make this more consistent.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-13 22:39:57 +02:00
Gary Morain
577db0aedd Prefer 5 GHz networks over 2.4 GHz networks
In scan.c, merge a channel's noise value into the scan results. When
comparing scan results, compute the signal-to-noise ratio and use it
when available. Prefer a 5 GHz network if its SNR is really big (> 30)
or if its SNR is relatively close to the other network's.
2011-10-30 21:08:21 +02:00
Jouni Malinen
b3af99d202 nl80211: Disable IEEE 802.11b rates only for P2P iftypes
Instead of hardcoding IEEE 802.11b rates to be disabled whenever
P2P support is built in and supported by the driver, do this only
when an interface is set to P2P mode (both when adding a new
interface and when changing the interface mode). This re-enables
use of IEEE 802.11b APs with CONFIG_P2P=y builds.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-10-29 22:46:58 +03:00
Jouni Malinen
97bcd562eb Remove disable_11b_rates() driver_ops
This function was used unconditionally if wpa_supplicant build
includes CONFIG_P2P=y. Adding a separate driver_ops for such use
is not really useful since the driver wrappers can do the same
internally. Remove this driver_ops and move matching functionality
into driver_nl80211.c which was the only driver wrapper using
this driver_ops callback.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-10-29 22:25:28 +03:00
Jouni Malinen
1dea5882be nl80211: Fix re-enabling of 802.11b rates
nl80211_disable_11b_rates() function was supposed to use the 'disabled'
parameter to figure out whether to disable or re-enable 802.11b rates.
In addition, the driver deinit path was now ending up re-disabling the
enabled rates at the end of the deinit operations when the interface
type was forced back to station. Both of these issues are now fixed
and the 2.4 GHz band TX rate index is cleared properly when
wpa_supplicant is stopped.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-10-29 22:12:26 +03:00
Eliad Peller
083590503b nl80211: disable_11b_rates on interface mode change
disable_11b_rates() is called on interface addition,
but not on interface type change, resulting in 11b rates
enabled on p2p interfaces.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2011-10-29 22:00:07 +03:00
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
Rajkumar Manoharan
970fa12ea2 nl80211: Add support to disable CCK rate for P2P frames
Add a new attribute to specify whether to use CCK rate or not during
scan and sending management frames. This helps to send P2P probes
at non-CCK rate. This ensures that P2P probe request/response/action
frames are always sent at non-CCK rates.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
2011-10-29 21:23:27 +03:00
Jouni Malinen
59d249255c nl80211: Ignore netlink interface down if interface is up
The netlink event processing is delayed since they are only returned
after control returns to eloop. This can result in netlink down events
being processed at a point when the interface has is actually still
there (the first event on new interface is down) and that can result in
odd behavior especially when the resulting interface-disabled event is
delivered to AP mode interface with wpa_supplicant.

Work around this by filtering netlink down events if the matching
interface is up at the time the netlink event is processed. This fixes
an issue brought up by commit 36d84860bb.
2011-10-28 21:08:15 +03:00
Arik Nemtsov
45b722f150 TDLS: Add peer as a STA during link setup
Before commencing setup, add a new STA entry to the driver representing
the peer. Later during setup, update the STA entry using information
received from the peer.

Extend sta_add() callback for adding/modifying a TDLS peer entry and
connect it to the TDLS state machine. Implement this callback for the
nl80211 driver and send peer information to kernel.

Mark TDLS peer entries with a new flag and translate it to a
corresponding nl80211 flag in the nl80211 driver.

In addition, correct TDLS related documentation in the wpa_driver_ops
structure.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:19:35 +03:00
Arik Nemtsov
35287637cc TDLS/nl80211: Support receiving TDLS discovery response frames
Register for the TDLS discovery response public action frame in nl80211.
Print out a debug message when a Discovery Resp frame is received and
validated.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:18:35 +03:00
Arik Nemtsov
03ea178603 nl80211: Implement TDLS callback functions and propagate capabilities
Allow passing high-level TDLS commands and TDLS frames to kernel
via new nl80211 commands.

Propagate TDLS related nl80211 capability flags from kernel and add them
as driver capability flags.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:15:05 +03:00
Jouni Malinen
8c66e18511 nl80211: Handle special TDLS direct link key index use
An ugly hack is currently used to indicate keys for TDLS direct link:
key_idx == -1. That needs to be converted to 0 for cfg80211 to accept
the key.
2011-10-23 22:14:05 +03:00
Jouni Malinen
e3b473eb4e Allow driver wrappers to indicate whether HT info is known
This is needed to be able to figure out whether the driver is known
not to support HT.
2011-10-23 17:21:39 +03:00
Jouni Malinen
bd2df8921b nl80211: Remove some unnecessary ifdef HOSTAPD blocks 2011-10-22 22:51:49 +03:00
Jouni Malinen
9e0e6902a2 Share a single wpa_scan_results_free() implementation
There is not really a very good location for this anywhere, but the
function is small enough to live as an inline function for now.
2011-10-22 22:09:40 +03:00
Ben Greear
c81eff1a61 nl80211: Use one global ioctl socket
Saves sockets when using multiple VIFS in a single
wpa_supplicant process.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2011-10-22 21:39:42 +03:00
Ben Greear
276e2d671c nl80211: Use a global netlink command object
Netlink sockets can be shared among all driver instances, saving
sockets and memory when using multiple interfaces in a single process.
2011-10-22 20:06:32 +03:00
Ben Greear
2a7b66f574 nl80211: Use global nl_cb template
All interfaces can share a single nl_cb template.
2011-10-22 20:06:30 +03:00
Ben Greear
dac12351d8 nl80211: Clean up error path in wpa_driver_nl80211_init
No need to duplicate the deinit code since wpa_driver_nl80211_deinit()
can be used here to clean up after a failure.
2011-10-22 18:28:06 +03:00
Johannes Berg
a92dfde818 nl80211: Abstract handle/cache (de)allocation
This is a cleanup now and makes it easier to add more sockets in the
future.
2011-10-22 16:56:43 +03:00
Johannes Berg
7635bfb071 nl80211: Fix hostapd error path
i802_init() tries to clean up everything manually, call
wpa_driver_nl80211_deinit() instead and also handle the
EAPOL socket properly.
2011-10-22 13:04:47 +03:00
Ben Greear
36d84860bb nl80211: Use global netlink rtm event object
Netlink sockets can be shared among all driver instances, saving lots
of sockets, spurious log messages, memory, and CPU usage when using
multiple interfaces in a single process.
2011-10-22 12:39:05 +03:00
Jouni Malinen
4b24282a17 hostapd: Call global_init/global_deinit driver_ops
Now both wpa_supplicant and hostapd allow the driver wrappers to use the
global context similarly.
2011-10-22 12:22:59 +03:00
Jouni Malinen
9fb0407055 nl80211: Use a wrapper for genlmsg_put
This reduces the code size by a kilobyte or so and makes it easier
to replace the netlink instances to be shared among interfaces.
2011-10-22 11:29:03 +03:00
Johannes Berg
e8b5e24e04 nl80211: Clean up capability querying
There's no need to store everything once and then copy it. Just fill the
capa struct directly in the function that parses the info from nl80211.
2011-10-20 21:57:32 +03:00
Johannes Berg
9b90955ec7 AP: Pass only bssid/addr/wds to EVENT_RX_FROM_UNKNOWN 2011-10-20 21:51:32 +03:00
Jouni Malinen
6e8183d714 nl80211: Stop more quickly on initialization errors
Stop on fatal errors like an attempt to use a non-existing interface or
not have root privileges to avoid producing confusing error messages.
2011-10-20 21:36:36 +03:00
Johannes Berg
40442f5b48 nl80211: Compat code for genl_ctrl_alloc_cache
It's really a waste of bits to duplicate the code for
genl_ctrl_alloc_cache() again and again -- just add a
wrapper like in iw.
2011-10-20 21:08:26 +03:00
Johannes Berg
bcf24348ed AP: Do station poll in driver wrapper
This offloads the station polling to driver wrappers, which may offload
it again to the driver. The hostap driver wrapper uses "real" data
frames while nl80211 uses null data frames.

Also add a specific event to indicate that a poll was successful for
future use with the nl80211 driver.
2011-10-20 21:03:08 +03:00
Jouni Malinen
31357268e5 Move AP BSS configuration parameters into set_ap()
Remove the separate driver_ops functions set_cts_protect(),
set_preamble(), set_short_slot_time(), and set_ht_params(). These
belong into same set of operations as set_ap(), so there is no need
to maintain separate functions that just make the driver wrapper
more complex.

Since these have only been used with driver_nl80211.c, the driver_ops
can be removed immediately instead of maintaining backwards
compatibility period with the old functions.
2011-10-17 19:31:33 +03:00
Jouni Malinen
fd13a54180 Deprecate set_intra_bss() driver_ops
The AP client isolation parameter is now available through set_ap().
driver_nl80211.c was the only driver wrapper using the set_intra_bss()
call in hostap.git, but some external trees may have used this. Once
those are cleared, the set_infra_bss() driver_ops can be removed
completely. The only remaining use case for it currently is in P2P
GO mode with wpa_supplicant.
2011-10-17 18:58:46 +03:00
Jouni Malinen
71269b3708 WNM: Add BSS Transition Management Request for ESS Disassoc Imminent
"hostapd_cli ess_disassoc (STA addr) (URL)" can now be used to send
an ESS Dissassociation Imminent notification to the STA. This event
is shown in wpa_supplicant ctrl_iface monitors (e.g., wpa_cli):
"WNM: ESS Disassociation Imminent - session_info_url=http://example.com/session/"
2011-10-16 23:55:34 +03:00
Jouni Malinen
4fe9fa0d29 nl80211: Register GAS frames for Interworking
The GAS frames are used both with P2P and Interworking, so register
them if CONFIG_INTERWORKING is used without CONFIG_P2P.
2011-10-16 23:55:34 +03:00
Luciano Coelho
bd525934e5 nl80211: Add support for sched_scan filtering
Use the SSID filter list passed in the scheduled scan request down to
the kernel driver, so it can use the list to return only the wanted
SSIDs. Some kernel drivers can use this information to offload the
SSID filter to the hardware, helping with reducing the power
consumption.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-15 18:53:14 +03:00
Luciano Coelho
d21c63b925 nl80211: Add scheduled scan support
This commit adds scheduled scan support in the nl80211 driver.

Signed-off-by: Luciano Coelho <coelho@ti.com>
2011-10-15 18:53:13 +03:00
Jouni Malinen
44dc872ee5 nl80211: Add debug print for channel changes 2011-10-15 13:29:56 +03:00
Jithu Jance
6758b1677a nl80211: Use shorter monitor interface name for P2P GO
Currently the P2P Interface name[p2p-%s-%d] is reset when the P2P
Interface name reaches the "IFNAMSIZ" limit. Monitor interface name is
derived from p2p interface name with the addition of few characters
[mon.p2p-%s-%d] and hence Monitor interface name hits IFNAMSIZ limit
before P2P Interface name. Rename the monitor interface name to
mon-%s-%d to reduce the length to same with p2p-%s-%d.
2011-10-15 13:07:30 +03:00
Vivek Natarajan
004ba773ce nl80211: Add driver flag for firmware-based BSS selection
This new flag can be used to change wpa_supplicant behavior in the
default ap_scan=1 mode to move BSS selection into the driver (likely
firmware). This commit is only adding the flag; separate commits
will be used to change the actual connection/roaming behavior.
2011-09-26 14:26:55 +03:00
Pavel Roskin
ffbf1eaa26 Fix typos found by codespell
Signed-off-by: Pavel Roskin <proski@gnu.org>
2011-09-22 00:43:59 +03:00
Jouni Malinen
c36d52427a nl80211: Support PMKSA candidate events
This adds support for RSN pre-authentication with nl80211 interface and
drivers that handle roaming internally (i.e., wpa_supplicant is not
responsible for requesting scan results that provide the needed
information without these events).
2011-09-21 16:14:41 +03:00
Jouni Malinen
20f5a4c24c nl80211: Work around EALREADY from connect command
cfg80211 does not currently allow NL80211_CMD_CONNECT when there
is already an association. This can result in wpa_supplicant being
unable to request a connection if the interface is already in
connected state. Work around this by requesting disconnection if
the connect command fails with EALREADY error. This allows
wpa_supplicant to recover from the unexpected state and complete
the connect request on next attempt.
2011-09-18 21:26:55 +03:00
Johannes Berg
531f0331a1 nl80211: Cancel not yet started r-o-c
Currently, the following can happen:

1) P2P state machine requests R-O-C
2) user changes their mind and aborts
3) P2P state machine aborts R-O-C
4) driver_nl80211 rejects abort since there
   was no notification about the start yet
5) R-O-C period start notification from kernel
6) P2P state machine requests new R-O-C
7) this overlaps with old R-O-C -- iwlwifi driver
   can't handle that and returns -EBUSY
8) state machine stops dead in its tracks

The reason is that the abort isn't going through properly. Instead of
tracking whether a R-O-C is active in driver_nl80211, track whether one
was requested to avoid this scenario.

Reported-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-09-10 22:57:41 +03:00
Rajkumar Manoharan
47185fc788 P2P: Remove CCK supported rates when running P2P scan
This allows drivers to disable CCK rates from Probe Request frames.
For nl80211, this is currently applying only to the supported rates
element(s), but this mechanism could be extended to address TX rate
control masking, too, to lessen need for global rate disabling.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
2011-09-10 22:40:30 +03:00
Johannes Berg
7626850dd6 nl80211: Automatically use concurrent P2P if possible
Since the kernel can now advertise P2P concurrent support by advertising
interface combinations, we can take advantage of that and automatically
use P2P_CONCURRENT / P2P_MGMT_AND_NON_P2P for drivers that advertise
support.

Keep driver_param=use_p2p_group_interface=1 for anyone not advertising
interface combinations in their drivers yet.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-09-10 21:52:21 +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
86957e6298 nl80211: Support AP mode probe/action frame TX/RX without monitor iface
This allows non-mac80211 drivers to report received Probe Request
frames to user space and Probe Response and Action frames to be sent
from user space when using AP/P2P GO mode.
2011-08-29 14:26:55 +03:00
Jouni Malinen
4dc03726de Delay STA entry removal until Deauth/Disassoc TX status in AP mode
This allows the driver to use PS buffering of Deauthentication and
Disassociation frames when the STA is in power save sleep. The STA
entry (and PTK) will be removed from the kernel only after the
Deauth/Disassoc has been transmitted (e.g., when the STA wakes up).
A hardcoded two second timeout is used to limit the length of this
window should the driver fail to deliver the frame (e.g., the STA
is out of range and does not wake up). The kernel STA entry is
marked unauthorized during the wait to avoid accepting Data
frames from the STA that we have decided to disconnect.

This behavior is available only with drivers that provide TX status
events for Deauth/Disassoc frames (nl80211 at this point). Other
drivers continue to use the previous behavior where the STA entry
is removed immediately.
2011-08-28 23:07:02 +03:00
Jouni Malinen
fb91db5639 Provide extra IEs for AP mode management frames with set_ap
Drivers that build Beacon, Probe Response, and (Re)Association
Response frames can use this information to and WPS and P2P IE
when needed.
2011-08-26 21:14:25 +03:00
Jouni Malinen
97a7a0b504 Add support for setting SSID hiding mode through set_ap() 2011-08-26 21:12:47 +03:00
Jouni Malinen
b11d1d6439 Add crypto parameters to set_ap() command separately
This helps drivers that build the Beacon and Probe Response frames
internally.
2011-08-26 21:11:42 +03:00
Jouni Malinen
ccb941e6da Add SSID as a separate item in AP mode Beacon setup
This makes it easier for drivers that need the SSID to get it from the
Beacon setup operation without having to parse the Beacon IEs.
2011-08-10 13:29:32 +03:00
Jouni Malinen
19c3b56685 Replace set_beacon() driver op with set_ap()
This change is a first step in better supporting different driver
architectures for AP mode operations with nl80211. This commit in
itself does not add new functionality, but it makes it easier to add
new AP mode parameters to address needs of drivers that have more of
the MLME/SME in firmware or kernel.
2011-08-10 13:22:37 +03:00
Jouni Malinen
5fb1a23252 nl80211: Fix hostapd build 2011-08-09 23:32:26 +03:00
Jouni Malinen
f10bfc9adb nl80211: Add l2_packet for AP mode EAPOL TX without monitor iface
This can be used with drivers that do not support monitor interface
when transmitting EAPOL frames in AP mode.
2011-08-09 14:04:53 +03:00
Jouni Malinen
9db931ed6d nl80211: Do not include NL80211_ATTR_DURATION in TX frame if zero
When offloading of the offchannel TX wait is not used, it is better to
not include NL80211_ATTR_DURATION to avoid confusing nl80211/cfg80211.
2011-08-09 14:01:31 +03:00
Jouni Malinen
a381f2a286 nl80211: Fix connect command to not claim WPA if WPS is used
Such using params->wpa_ie to figure out whether the connection is for
WPA/WPA2 is not correct since that buffer is used also to add WPS IE. In
case of WPS, do not add NL80211_ATTR_WPA_VERSIONS to avoid confusing
drivers.
2011-08-09 13:59:43 +03:00
Jouni Malinen
a05225c819 nl80211: Add more debug information on frame TX command failures 2011-08-09 13:59:12 +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
Eliad Peller
b1f625e0d8 nl80211: Consider P2P when changing vif type
Commit 9f51b11395 added support for P2P
interfaces when adding a new interface. However, it didn't handle the
case in which the same interface is being used and its type is being
changed. Add support for this case.

Consequently, when doing "ap_scan_as_station" we now need to save the
actual AP interface type (AP/P2P GO) in order to restore it properly.
For that, change ap_scan_as_station type from int to nl80211_iftype, and
set it to NL80211_IFTYPE_UNSPECIFED when not used.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2011-07-17 20:22:11 +03:00
Jouni Malinen
ff6a158b40 nl80211: Do not re-set iftype when initializing added interface
There is no need to force the interface into station mode when
wpa_supplicant adds a new interface (e.g., P2P group) with the correct
iftype.
2011-07-17 20:03:25 +03:00
Jouni Malinen
a1922f934d nl80211: Add more debug info for iftype changes 2011-07-17 19:47:41 +03:00
Jouni Malinen
7d9c369827 nl80211: Ignore ifdown event if mode change triggered it
When driver_nl80211.c has to set the netdev down to change iftype, an
RTM_NEWLINK event is generated. Do not generate
EVENT_INTERFACE_DISABLED event based on that.
2011-07-17 13:56:34 +03:00
Johannes Berg
f67eeb5c32 nl80211: fix interface address assignment
When a new interface is created and already has a separate MAC address
assigned by the kernel, then we need to use that address, not just when
we've created a locally administered address.

This fixes use_p2p_group_interface=1 for iwlagn as it already makes
mac80211 assign an address for a second interface since the hardware has
two addresses assigned.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-07-15 12:05:19 +03:00
Johannes Berg
b14a210ce2 nl80211: Support GTK rekey offload
Add support to wpa_supplicant for device-based GTK rekeying. In order to
support that, pass the KEK, KCK, and replay counter to the driver, and
handle rekey events that update the latter.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-07-12 21:22:51 +03:00
Arik Nemtsov
95ab606345 nl80211: Send STA flags to kernel on station addition
Send STA flags to kernel when adding a new station. This ensures
stations are added with up to date flags by kernel drivers.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
2011-07-12 20:28:31 +03:00
Jouni Malinen
5f310a9e24 nl80211: Process association/disassociation events in AP mode
This allows non-mac80211 drivers that implement AP mode SME/MLME
in firmware or driver to notify hostapd/wpa_supplicant of AP mode
association events.
2011-07-01 18:44:09 +03:00
Jouni Malinen
866af8b6bd nl80211: Allow AP mode to be started without monitor interface
This is in preparation for supporting AP mode with SME/MLME in the
driver/firmware.
2011-06-28 21:59:44 +03:00
Jouni Malinen
a6efc65ddb nl80211: Add support for driver-based PMKSA cache
Implement PMKSA cache operations add, remove, and flush using nl80211
commands NL80211_CMD_{SET,DEL,FLUSH}_PMKSA to support PMKSA caching
with drivers that select the AP and generate the RSN IE internally.
2011-06-20 10:17:33 +03:00
Jouni Malinen
f07ead6af9 nl80211: Re-order functions to group AP/hostapd specific code
Get rid of separate ifdef/endif blocks for AP specific and hostapd
specific code, i.e., only have one main block of code for each case.
2011-05-27 19:02:04 +03:00
Jouni Malinen
f7b3920c90 nl80211: Enable more AP callbacks for non-hostapd AP mode
Some of these are required for proper functionality (like
get_seqnum); others may not be needed yet, but including them
allows some extra ifdef/endif blocks to be removed.
2011-05-27 18:54:36 +03:00
Eliad Peller
257da77362 nl80211: Implement set_rate_sets for non-hostapd AP case
.set_rate_sets is not defined for non-hostapd, which prevents
configuring basic_rates when working as P2P GO.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2011-05-27 18:41:46 +03:00
Jouni Malinen
46957a9b2d nl80211: Filter out duplicated BSS table entries from scan results
cfg80211 maintains separate BSS table entries for APs if the same
BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
not use frequency as a separate key in the BSS table, so filter out
duplicated entries. Prefer associated BSS entry in such a case in
order to get the correct frequency into the BSS table.
2011-05-16 19:18:42 +03:00
Jouni Malinen
f5a8d42229 nl80211: Fetch assoc_freq from scan table for connect event
When kernel-based SME is used, use the scan table to find a BSS entry
for the associated AP when processing connected event.
2011-05-16 18:35:42 +03:00
Jouni Malinen
3f3602386e nl80211: Add support for auth_alg auto-selection with connect command
When the SME is in the driver or cfg80211, the automatic selection
of auth_alg is done by leaving out the NL80211_ATTR_AUTH_TYPE
attribute from the NL80211_CMD_CONNECT command.
2011-04-07 14:53:40 +03:00
Felix Fietkau
4378fc14eb nl80211: Send EAPOL frames as QoS data frames for QoS aware clients
This should fix EAPOL reauthentication and rekeying timeout issues
with Intel clients when using WMM (e.g., with IEEE 802.11n). These
stations do not seem to be able to handle EAPOL data frames as
non-QoS Data frames after the initial setup.

This adds STA flags to hapd_send_eapol() driver op to allow
driver_nl80211.c to mark the EAPOL frames as QoS Data frame
when injecting it through the monitor interface.
2011-04-02 22:03:05 +03:00
Paul Stewart
1c5c7273f5 driver: Function to directly poll signal quality
This provides a means for the supplicant to directly request signal
quality metrics from the driver. This is useful, for example for
background scan algorithms that might ask desire this information
out-of-band with CQM events.

Signed-off-by: Paul Stewart <pstew@google.com>
2011-03-31 17:56:48 +03:00
Jouni Malinen
2fee890af7 Add driver capa flag for EAPOL TX status and store capa in hostapd 2011-03-29 17:36:06 +03:00
Jouni Malinen
21bdbe38be nl80211: Implement deauth for IBSS as leave IBSS command 2011-03-23 21:15:22 +02:00
Jouni Malinen
ef985058f4 nl80211: Use NL80211_CMD_DEL_STATION event to indicate IBSS peer loss 2011-03-23 15:32:55 +02:00
Johannes Berg
c4bb881743 nl80211: Do not add interface to the global list in case of failure
This avoids leaving a freed interface on the global list in case
driver initialization fails.
2011-03-22 15:52:04 +02:00
Johannes Berg
ee7ab173c7 nl80211: Implement deauth/disassoc for non-HOSTAPD case
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-03-16 16:11:05 +02:00
Jouni Malinen
e17a2477db nl80211: Extend bridge add/del operations for secondary BSSes
Previously, only the main interface was added to a bridge. Extend this
to apply to all configured BSSes.
2011-03-15 13:02:49 +02:00
Raghunathan Kailasanathan
58708b3bd1 nl80211: Use nl_atype() from libnl
libnl provides nla_type() which can be used to derive nla_type from
struct nlattr.
2011-02-22 21:48:49 +02:00
Johannes Berg
89e07afb2c nl80211: Use max_remain_on_chan data from nl80211
If the driver advertises max_remain_on_chan data, use it instead of
the hardcoded value of 5000. Keep the default at 5000 since that is the
value used by earlier versions of cfg80211/mac80211 and not advertised
in nl80211 for those.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-02-01 18:18:32 +02:00
Eliad Peller
f14f5141a0 nl80211: Remove excessive nl80211_set_mode() call
When authenticating, and the interface type is not already
NL80211_IFTYPE_STATION, we need to call wpa_driver_nl80211_set_mode()
only once. Remove the excessive call.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2011-02-01 16:38:38 +02:00
Johannes Berg
9f51b11395 nl80211: use P2P interface types
We can use the P2P interface types to check if the driver supports P2P
and to tell the kernel that a given interface is going to be used for
P2P (when it is created).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-01-31 21:49:48 +02:00
Helmut Schaa
f1bed4a70d nl80211: Make use of the ht opmode bss attribute
In order to enable protection mechanisms for different HT opmodes the
driver needs to be aware of the current HT opmode that is calculated by
hostapd. Hence, pass the current opmode to the nl80211 driver via
the bss attribute NL80211_ATTR_BSS_HT_OPMODE.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
2011-01-30 21:16:29 +02:00
Jouni Malinen
60ea8187c9 nl80211: Set NL80211_ATTR_KEY_DEFAULT_TYPES based on set_key addr
This allows mac80211 to configure default keys properly for RSN IBSS
mode.
2011-01-09 19:54:50 +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
8546ea1930 nl80211: Avoid infinite loop when searching a BSS
When hostapd is removing a virtual BSS interface, the loop here was
incorrectly not updating the iterator during list traversal and
ended up in an infinite loop in some cases.
2011-01-09 19:18:50 +02:00
Johannes Berg
5dfca53fc0 nl80211: Use driver-based off-channel TX if available
If the underlying driver supports off-channel TX, it will now be used by
the nl80211 driver wrapper, setting WPA_DRIVER_FLAGS_OFFCHANNEL_TX
accordingly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-12-29 14:05:34 +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
Johannes Berg
0d7e5a3a29 Allow AP mode to disconnect STAs based on low ACK condition
The nl80211 driver can report low ACK condition (in fact it reports
complete loss right now only). Use that, along with a config option, to
disconnect stations when the data connection is not working properly,
e.g., due to the STA having went outside the range of the AP. This is
disabled by default and can be enabled with disassoc_low_ack=1 in
hostapd or wpa_supplicant configuration file.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-12-28 17:15:01 +02:00
Jouni Malinen
79c3124ce5 nl80211: Remove extra \n from debug messages 2010-12-19 12:00:24 +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
Masashi Honma
2136f48020 nl80211: Stop driver init sooner if the interface does not exist 2010-12-17 13:55:13 +02:00
Jouni Malinen
2397086869 nl80211: Add forgotten deinit code on failure path 2010-12-17 13:49:38 +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
89c38e32c7 RSN IBSS: RX GTK configuration with nl80211
This add preliminary code for setting the per-STA RX GTK for
RSN IBSS when nl80211 drivers. For some reason, this does not
seem to fully work, but at least driver_nl80211.c is now aware of
what kind of key is being set and the whatever is missing from
making this key configuration go through should be specific to
nl80211/cfg80211.
2010-12-04 20:31:22 -08:00
Jouni Malinen
18d2ba083b nl80211: Generate EVENT_IBSS_RSN_START events
This is needed to trigger start of 4-way handshake when a new STA is
detected in an RSN IBSS.
2010-12-04 18:17:58 -08:00
Jouni Malinen
482856c8ba nl80211: Fix compiler warnings on non-P2P build 2010-11-27 13:05:37 +02:00
Ben Greear
6859f1cb24 Enable sharing of scan result events among virtual interfaces
When controlling multiple virtual interfaces on the same physical
radio, share the scan results events with sibling interfaces. This
decreases the time it takes to connect many virtual interfaces.

This is currently only supported on Linux with cfg80211-based
drivers when using nl80211 or wext driver interface.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2010-11-26 21:46:30 +02:00
Jouni Malinen
f2ed8023c4 nl80211: Track used interfaces and support multiple P2P groups
Track all the P2P group interfaces within driver_nl80211.c to make
it easier to generate unique P2P Interface Addresses.
2010-11-26 18:14:51 +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
df89c1c8d1 nl80211: Add BSSID to NL80211_CMD_CONNECT assoc reject event 2010-11-26 17:40:10 +02:00
Jouni Malinen
ce04af5a74 nl80211: Fix NL80211_CMD_CONNECT with WPA/WPS networks 2010-11-26 17:39:31 +02:00
Jouni Malinen
c55f774d00 nl80211: Add preliminary code for testing separate P2P group interface
driver_param=use_p2p_group_interface=1 can now be used to test
nl80211-drivers with separate P2P group interface. In other words,
the main interface (e.g., wlan0) is reserved for P2P management
operations and non-P2P connections and a new group interface (e.g.,
p2p-wlan0-0) is created for the P2P group.

This implementation is very minimal, i.e., it only support address
allocation for a single P2P group interface (if the driver does not
handle this internally). In addition, not all functionality has yet
been tested, so for now, this is disabled by default and needs that
special driver_param to enable.
2010-11-26 15:54:53 +02:00
Jouni Malinen
ebbec8b2fa nl80211: Fix send commands to return 0 on success
driver.h defines these functions to return 0 on success, not
number of bytes transmitted. Most callers are checking "< 0" for
error condition, but not all. Address this by following the driver
API specification on 0 meaning success.
2010-11-24 14:58:58 +02:00
Jouni Malinen
d8e66e80b9 Add HT40 flags into driver channel list
This can be used to figure out whether the driver would allow
HT40-/HT40+ on any specific channel.
2010-11-12 18:13:37 +02:00
Felix Fietkau
d38ae2ea85 Add bridge handling for WDS STA interfaces
By default, add them to the configured bridge of the AP interface
(if present), but allow the user to specify a separate bridge.
2010-11-09 16:12:42 +02:00
Felix Fietkau
4a8c72959e nl80211: Fix AP VLAN handling for WDS STA reassociation
When a STA reassociates, the AP VLAN interface is still present,
do not attempt to create it in that case.
2010-11-09 16:03:05 +02:00
Jouni Malinen
7e3c178142 Remove unused TX queue parameters related to Beacon frames
These are not used by any driver wrapper, i.e., only the four
data queues (BK, BE, VI, VO) are configurable. Better remove these
so that there is no confusion about being able to configure
something additional.
2010-11-05 01:23:17 +02:00
Helmut Schaa
65ae1afd44 nl80211: Pass data frames from unknown STAs to hostapd
Pass data frames from unknown STAs to hostapd in order to reply with
a Deauthentication or Disassociation frame. This fixes compliance
with IEEE Std 802.11-2007, 11.3.

Furthermore, this does not cause a lot of overhead (at least with
mac80211 drivers) since mac80211 does not pass all data frames (but
at least from unauthenticated and unassociated STAs) to cooked monitor
interfaces.

Tested with rt2800pci on a MIPS board.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
2010-10-31 21:36:43 +02:00
Jouni Malinen
59ddf221c8 Add BSSID to association rejected events 2010-10-27 20:27:39 +03:00
Jouni Malinen
33c5deb816 nl80211: Indicate channel list change events
Listen to regulatory event messages from kernel and convert them to
internal driver event notifications indicated that the channel list
may have changed.
2010-10-15 18:56:36 +03:00
Paul Stewart
7ee35bf395 nl80211: Add more details into signal change events
Add new survey retrieval function and add txrate to station into the
EVENT_SIGNAL_CHANGE events.
2010-10-12 20:01:50 +03:00
Johannes Berg
5582a5d1b3 nl80211: Use nl80211 for Probe Request/Response frames
The new nl80211 API means we don't need to use monitor interfaces. This
means that the P2P implementation now requires a kernel that has support
for generic management frame (not just Action frame) transmission.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 18:10:37 +03:00
Johannes Berg
9884f9cc1c nl80211: Refactor Action frame TX
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 18:00:25 +03:00
Johannes Berg
bd94971e11 nl80211: Use new frame registration API
This is backward compatible since older kernels will ignore the extra
attribute and only allow registration for Action frames.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 17:55:18 +03:00
Johannes Berg
6ee04cfcf4 nl80211: support intra-BSS configuration
Using the AP_ISOLATE nl80211 option, we can support intra-BSS
distribution configuration.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 17:48:54 +03:00
Johannes Berg
a65a9aed7e nl80211: work around libnl bug
libnl has a bug, when binding more than two sockets and releasing one,
it will release the wrong address and then try to reuse it, which fails.
Therefore, we need to reimplement the socket address assignment logic
locally for libnl 1.1.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 17:47:15 +03:00
Jouni Malinen
8602b0f213 nl80211: Include linux/rtnetlink.h explicitly
This is needed with libnl-tiny to get various definitions that
get included implicitly with libnl.
2010-09-29 21:52:51 -07:00
Jouni Malinen
18708aadfc P2P: Initial support for SD fragmentation (GAS Comeback Request/Response) 2010-09-09 07:17:19 -07:00
Jouni Malinen
046b26a24e nl80211: Add P2P operations 2010-09-09 07:17:17 -07:00
Jouni Malinen
75bde05d53 P2P: Add driver operations for P2P use 2010-09-09 07:17:16 -07:00
Jouni Malinen
60a972a68d Add current signal strength into signal quality change events 2010-08-27 16:58:06 +03:00
Jouni Malinen
2e75a2b3a6 Add more debug info on deauth/disassoc events and commands 2010-08-17 21:04:38 +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
Paul Stewart
cb30b297bd nl80211: Ignore "DEAUTH" messages from APs we are not associated to
DEAUTH messages can come from a number of different sources. The one
that's hurting us currently is DEAUTH netlink messages coming to us
from compat-wireless in response to local_state_change DEAUTH messages
we sent as a part of cleaning up state in driver_nl80211's
clear_state_mismatch() function. However, DEAUTH messages can come
from a variety of unwanted sources, including directed denial-of-service
attacks (although MAC verification doesn't place that high a barrier),
so this validation is actually generically useful, I think.

The downside to this method is that without a kernel based approach
"iw dev wlan0 link" no longer works correctly after clear_state_mismatch()
is done.  This will be pursued with the kernel folks.
2010-08-16 21:27:26 +03:00
Johannes Berg
ba2d0d7d68 nl80211: Don't pass ctx to wpa_driver_nl80211_init_nl
Currently, we don't use the sock_ctx that we get passed by eloop, so
don't assign it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-08-11 18:33:24 +03:00
Johannes Berg
f48ffe4364 nl80211: Remove unused pending_send_action
This variable is assigned only once and never tested, so basically
unused.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-08-11 18:33:02 +03:00
Jouni Malinen
15ed5535ad nl80211: Show remain-on-channel duration in debug output 2010-08-11 18:02:19 +03:00
Jouni Malinen
26af9dcaef nl80211: Try mode changes multiple times to avoid some races
cfg80211/mac80211 seems to be unwilling to change interface mode in
some cases. Make these less likely to cause problems by trying the
changes up to 10 times with 100 msec intervals.
2010-08-11 18:01:37 +03:00
Jouni Malinen
4796272f5f nl80211: show TX status (ack) in debug log 2010-07-17 20:17:43 -07:00
Jouni Malinen
a63063b4f6 rfkill: Use rtnetlink ifup/ifdown events
Replace use of rfkill block event with rtnetlink ifdown. This makes
the design more robust since the rfkill event could have been for
another interface while the rtnetlink events are already filtered
based of ifindex. In addition, the new design handles other than
rfkill-triggered ifdown/ifup events, too. rfkill unblocked event
is still needed to try to set the interface back up. If the unblock
was for another interface, ifup will fail and the driver state is
not changed.
2010-05-31 18:52:17 +03:00
Jouni Malinen
5216938960 Fix memory leak on rfkill init error path 2010-05-25 12:06:25 +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
Jouni Malinen
37eb8da957 nl80211: Fix wpa_supplicant build 2010-04-16 14:13:27 +03:00
M. Braun
0ab7a701ab nl80211: Fix initial add_ifidx() realloc to not forget values
We need to make a copy of the old entries the first time the
if_indices buffer gets allocated.
2010-04-16 00:39:59 +03:00
M. Braun
97cfcf6482 nl80211: Add bridge interfaces to own ifindex list automatically
Whenever our own interface is added to a bridge, add that bridge
into the list of own interfaces.
2010-04-16 00:36:33 +03:00
Jouni Malinen
cd1d72c1d0 nl80211: Add more debug info on NL80211_ATTR_STA_VLAN failures 2010-04-15 23:46:49 +03:00
Jouni Malinen
0544b24248 Add BSSID and reason code (if available) to disconnect event
This adds more details into the CTRL-EVENT-DISCONNECTED event to
make it easier to figure out which network was disconnected in some
race conditions and to what could have been the reason for
disconnection. The reason code is currently only available with
the nl80211 driver wrapper.
2010-04-11 21:25:15 +03:00
Jouni Malinen
e3802622db nl80211: Define set_freq for wpa_supplicant, too 2010-04-11 20:36:16 +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
de12717a56 nl80211: Fix key configuration in wpa_supplicant AP mode 2010-04-11 19:35:24 +03:00
Jouni Malinen
bc19f67240 nl80211: Remove forgotten Action frame registration example 2010-04-11 19:32:07 +03:00
Jouni Malinen
f3585c8a85 Simplify driver_ops for virtual interface add/remove
There is no absolute requirement for separating address allocation
into separate functions, so simplify the driver wrapper interface
to use just if_add and if_remove instead of adding the new
alloc_interface_addr() and release_interface_addr() functions.

if_add() can now indicate if the driver forced a different interface
name or address on the virtual interface.
2010-04-11 19:23:09 +03:00
Jouni Malinen
f8bf142175 nl80211: Fix memory leak on send_action error path 2010-04-11 12:29:16 +03:00
Jouni Malinen
7733991281 nl80211: Start using NL80211_ATTR_LOCAL_STATE_CHANGE
This removes transmission of some unnecessary Deauthentication
frames in cases where we only need to clear the local state. In
addition, this resolves issues for 802.11r FT-over-DS by allowing
authentication state to be set locally even when no actual
Authentication frame is to be transmitted.
2010-04-08 11:31:37 +03:00
Jouni Malinen
b91ab76e8c Add test commands for sending deauth/disassoc without dropping state
This can be used to test 802.11w by sending a protected or unprotected
deauth/disassoc frame.

hostapd_cli deauth <dst addr> test=<0/1>
hostapd_cli disassoc <dst addr> test=<0/1>

test=0: unprotected
test=1: protected
2010-03-29 12:01:40 -07:00
Jouni Malinen
b625473c6c Add driver command and event for signal strength monitoring 2010-03-28 15:31:04 -07:00
Jouni Malinen
93910401c9 nl80211: Parse CQM events 2010-03-28 13:56:40 -07:00
Holger Schurig
2ea2fcc7e6 nl80211: Fix WEP key configuration for prior to authentication
The driver data was changed from struct wpa_driver_nl80211_data * to
struct i802_bss * and the internal call will need to match that change.
2010-03-27 22:22:17 -07:00
Jouni Malinen
9fad706c68 nl80211: Add more debug information about scan request parameters 2010-03-26 22:22:38 -07:00
Jouni Malinen
15664ad01a nl80211: Silence set_key ENOLINK failure messages on key clearing
This happens in common case and is expected, so there is no need to
include the potentially confusing failure message in the debug log.
2010-03-26 21:58:31 -07:00
Jouni Malinen
73fc617d5c nl80211: Fix FT Action send command
Need to include payload header in the data length to avoid sending
truncated FT Action frame.
2010-03-12 00:41:03 +02:00
Jouni Malinen
7b90c16aa9 nl80211: Add preliminary implementation of FT Action send
This is a step in adding FT support with nl80211-based drivers.
driver_nl80211.c is now registering to handle the FT Action frames
and is able to transmit FT Request frame. Received FT Action frames
are not yet indicated as driver events.
2010-03-07 22:47:39 +02:00
Jouni Malinen
5205c4f98a nl80211: Fix driver context pointer for auth-failure-case
The new per-BSS context needs to be used here when calling
wpa_driver_nl80211_deauthenticate() to avoid passing incorrect
data type to the function.
2010-03-07 21:29:34 +02:00
Jouni Malinen
3234cba40e Remove unnecessary ifname parameter to sta_set_flags() driver op 2010-03-07 11:45:41 +02:00
Jouni Malinen
62847751e4 Remove unnecessary ifname parameter from sta_add() driver op 2010-03-07 11:42:41 +02:00
Jouni Malinen
7ab68865c0 Remove unneeded iface parameter from if_add() driver op 2010-03-07 10:05:05 +02:00
Felix Fietkau
071799872f hostapd: fix a segfault in the error path of the nl80211 if_add function 2010-03-07 09:59:22 +02:00
Jouni Malinen
05ba8690cb nl80211: Unregister forgotten eloop socket on init failure 2010-03-06 22:37:48 +02:00
Jouni Malinen
8b897f5a17 Remove unnecessary ifname parameter from set_beacon()
The new per-BSS driver context makes this unnecessary.
2010-03-06 22:36:40 +02:00
Felix Fietkau
a2e40bb650 hostapd: Fix interface selection for the nl80211 driver
This patch allows the nl80211 driver to create its own per-bss context
and pass it to the drv_priv pointer of the hostapd bss state.
With this and the following patch, stations can associate to and switch
between multiple BSS interfaces of a single wiphy.
This obsoletes a few instances of passing ifname to a callback, those
can be removed in a separate patch.
It might also be useful to move more fields from the driver data to the
per-bss data structure in the future.
2010-03-06 22:22:56 +02:00
Felix Fietkau
4c32757d22 hostapd: add ifname to the sta_set_flags callback
This fixes multi-BSS STA operations (e.g., setting AUTHORIZED flag) with
nl80211-based drivers.
2010-03-06 20:44:31 +02:00
Jouni Malinen
3812464cda Add optional scan result filter based on SSID
filter_ssids=1 global configuration parameter can now be used to
enable scan result filtering (with -Dnl80211 only for now) based on
the configured SSIDs. In other words, only the scan results that have
an SSID matching with one of the configured networks are included in the
BSS table. This can be used to reduce memory needs in environments that
have huge number of APs.
2010-03-05 21:42:06 +02:00
Jouni Malinen
207ef3fb12 Add suspend/resume notifications
wpa_supplicant can now be notified of suspend/resume events, e.g.,
from pm-action scripts. This allows wpa_supplicant to clear information
that may become invalid during a suspend operation.
2010-02-27 18:46:02 +02:00
Jouni Malinen
58f6fbe05c nl80211: Add support for off-channel Action TX/RX commands
The kernel side support for this was just added into
wireless-testing.git. This commit adds the driver wrapper code needed
to allow wpa_supplicant to use the new functionality.
2010-02-16 19:41:49 +02:00
Jouni Malinen
b7a2b0b68c Add alloc_interface_addr() drv op option for specifying ifname
Some drivers may need to use a specific ifname for the virtual
interface, so allow them to do this with a new parameter passed
to the alloc_interface_addr() handler.
2010-02-16 19:34:51 +02:00
Jouni Malinen
e748062b58 nl80211: Do not try to remove non-existing STA WDS interface
This removes confusing error messages from the default (no WDS) case.
2010-02-10 11:29:53 +02:00
Jouni Malinen
8856462d61 nl80211: Dump scan results in debug log if association command fails
This may help in debugging why cfg80211 refused the association
command since the scan results should include information about all
pending authentication and association states.
2010-01-24 18:11:30 -08:00
Jouni Malinen
582507be85 nl80211: Clear cfg80211 authentication data for old entries
cfg80211 has a limit on pending authentications, so we better clear
the entries that we do not care about to avoid hitting the limit
when roaming between multiple APs.
2010-01-24 18:07:34 -08:00
Jouni Malinen
8c0906542c Fetch IEs from both Beacon and Probe Response frames if available
This allows the driver wrappers to return two sets of IEs, so that
the BSS code can use information from both Beacon and Probe Response
frames if needed. For example, some Cisco APs seem to include more
information in Wireless Provisioning Services IE when it is in the
Beacon frame.
2010-01-16 16:11:05 +02:00
Jouni Malinen
94627f6cc8 hostapd: Detect bridge interface automatically
This makes the bridge parameter unnecessary for cases where the interface
is already in a bridge and sysfs is mounted to /sys so that the detection
code works.

For nl80211, the bridge parameter can be used to request the AP
interface to be added to the bridge automatically (brctl may refuse to
do this before hostapd has been started to change the interface mode).
If needed, the bridge interface is also created.
2010-01-16 15:19:58 +02:00
Jouni Malinen
af47308823 Add deinit_ap driver op to help wpa_supplicant AP mode use 2010-01-16 12:20:51 +02:00
Jouni Malinen
4e5cb1a366 Add driver op for disabling 802.11b rates 2010-01-16 12:11:19 +02:00
Jouni Malinen
3adca61c9c nl80211: Fix a typo 2010-01-03 22:20:27 +02:00
Jouni Malinen
2ac9688eb8 Use common driver code for Linux hwaddr get/set 2010-01-03 22:17:08 +02:00
Jouni Malinen
34f2f814e0 Share a single Linux ioctl helper fo setting interface up/down
Number of Linux driver wrappers included this more or less identical
function, so lets add a new helper file to be able to share some more
code between the driver wrappers.
2010-01-03 22:08:26 +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
d1f9c410c1 Remove src/drivers/scan_helpers.c
Most of this file was already moved into wpa_supplicant/scan.c and
we can remove the file completely by having couple of small helper
functions copied to the remaining users outside core wpa_supplicant
code.
2010-01-03 20:27:32 +02:00
Jouni Malinen
baac649094 Add drv_event_eapol_rx() helper 2010-01-03 18:35:01 +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
55777702cd Add driver API functionality for off-channel Action frames
This adds new commands and events for allowing off-channel Action
frame exchanges to be requested. This functionality is not yet used
and is only fully supported by driver_test.c at this point.
driver_nl80211.c has support for the remain-on-channel commands, but
the Action frame TX/RX part is still pending review for the kernel
code and as such, is not yet included here.
2010-01-03 13:57:51 +02:00
Jouni Malinen
7bfc47c34f Add driver ops for allocating interface addresses
This adds placeholder code for allowing the virtual interfaces to be
pre-allocated a MAC address before the interface type is known with
drivers that do not handle interface type changes.
2010-01-03 13:42:06 +02:00
Jouni Malinen
504e905c6e Add a driver op for enabling Probe Request reporting in station mode 2010-01-03 13:30:22 +02:00
Jouni Malinen
2a8b74163e Move struct hostapd_frame_info definition away from driver API
This is internal data structure for hostapd/AP functionality and does
not need to be defined in driver.h.
2010-01-03 12:37:02 +02:00
Jouni Malinen
0d9fc3d8bd Remove struct ieee80211_hdr dependency from EVENT_RX_FROM_UNKNOWN
It is simpler to just pass in u8* to the beginning of the header.
2010-01-03 12:17:20 +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
Jouni Malinen
291b60682a nl80211/wext: Hardcode all auth_algs as supported
There does not seem to be a driver interface for fetching auth_algs
capability, but this may be used by some external application, so
hardcode all auth_algs as supported for now.
2010-01-01 21:41:19 +02:00
Jouni Malinen
c6e8e8e41f nl80211: Add more debug prints for mode changes and interface add/remove 2009-12-28 13:25:17 +02:00
Jouni Malinen
4832ecd754 Add an option for driver wrappers to report operational frequency 2009-12-28 13:23:13 +02:00
Jouni Malinen
719347511a Get rid of unnecessary typedefs for enums. 2009-12-26 10:35:08 +02:00
Felix Fietkau
fbbfcbac29 hostapd: Add WDS (4-address frame) mode with per-station interfaces
This mode allows associated stations to use 4-address frames to allow
layer 2 bridging to be used. At least for the time being, this is only
supported with driver=nl80211.
2009-12-24 11:46:22 +02:00
Jouni Malinen
7bf127572c nl80211: Use couple more os_*() wrappers for allocation 2009-12-21 22:32:59 +02:00
Jouni Malinen
e62fb0a0de nl80211: Use os_* allocation wrappers to avoid WPA_TRACE issues 2009-12-21 22:21:10 +02:00
Jouni Malinen
62d680c3ca netlink: Move more of the newlink/dellink parsing into shared code 2009-12-18 17:49:07 +02:00
Jouni Malinen
08063178fb nl80211/wext: Share netlink new/del link event receive code 2009-12-18 17:11:54 +02:00
Jouni Malinen
e2d02c29b5 driver_nl80211/wext: Share netlink operstate send function
As an initial step in sharing netlink helper functions among driver
wrappers, create a new file for netlink code and move operstate send
function there.
2009-12-18 16:35:33 +02:00
Jouni Malinen
3b31db5199 Fix netlink payload length calculation
nlmsghdr length needs to be removed from payload length. [Bug 341]
2009-12-18 16:14:54 +02:00
Jouni Malinen
f8b1f69561 Use generic driver events for TX status and RX reporting
Replace driver wrapper calls to hostapd_tx_status(),
hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and
hostapd_mgmt_tx_cb() with new generic driver events
EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT.

This cleans up lot of the driver wrapper code to be less dependent
on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 23:05:39 +02:00
Jouni Malinen
1b648c7e1a nl80211: Remove some of the unnecessary conditional compilation
These functions can be built for both hostapd and wpa_supplicant.
2009-12-13 21:49:53 +02:00
Jouni Malinen
8043e72589 Add BSS ctx to if_add() driver op
This remove the need from driver_test.c to go through internal hostapd
structures to find the appropriate BSS when reporting events on secondary
BSSes.
2009-12-13 18:54:11 +02:00
Jouni Malinen
0de39516ae Map STA flags into values defined in driver.h
This removes need for including hostapd/sta_flags.h into driver
wrappers and removes any remaining dependencies between driver flags
and internal hostapd flags.
2009-12-13 11:35:39 +02:00
Jouni Malinen
fb7842aa51 Remove struct hostapd_rate_data from driver API
In addition to the bitrate, the only other variable in this structure
is used internally in hostapd. Move this structure into hostapd.h and
make the driver API use simpler data structure (array of bitrates).
2009-12-09 21:57:50 +02:00
Jouni Malinen
217e7eeaf0 Remove unused rate flags from driver use
These are not really used and can be removed to clean up the driver
interface definition. The only remaining flag (HOSTAPD_RATE_BASIC) can
be removed once the basic rate set indication can be handled
differently.
2009-12-09 21:38:14 +02:00
Jouni Malinen
22a7c9d735 Merge bss_add/bss_remove drivers ops into if_add/if_remove
if_add/if_remove can now be used as the generic driver ops for adding
and removing virtual interfaces of various types. In addition,
driver_nl80211.c is now including this code unconditionally, so that
the functions are not limited only for hostapd.
2009-12-09 16:49:28 +02:00
Jouni Malinen
b5996353e7 Remove unused if_update() driver op 2009-12-09 15:47:20 +02:00
Jouni Malinen
644a8f2208 Remove unused phytype RX info variable 2009-12-06 18:54:58 +02:00
Jouni Malinen
a95795ad61 nl80211: Add extra IEs into IBSS join request
This allows RSN IE to be added into Beacon and Probe Response frames
when using RSN IBSS.
2009-12-04 22:20:59 +02:00
Jouni Malinen
5cc4d64bf2 nl80211: Add support for IBSS networks 2009-12-04 00:15:32 +02:00
Jouni Malinen
d72aad942b nl80211: Clear BSS state mismatches with deauth as a workaround
There seem to be some cases in which wpa_supplicant and
cfg80211/mac80211 seem to have different understanding on
authentication/association state. Since cfg80211/mac80211 is very strict
on when it accepts new authentication/association/scan commands, try our
best at clearing such state mismatches by explicitly deauthenticating
from BSSes with which the driver claims we are associated with if we do
not have local information about such association.
2009-12-02 17:54:57 +02:00
Jouni Malinen
e6b8efeba0 nl80211: Add debug prints for BSS status in scan results
Print what the kernel believes the current BSS status (authenticated
or associated) is in scan results. In addition, check whether this
matches with the state that wpa_supplicant believes the driver to be
in.

This does not change the actual behavior, but will provide information
that will help in debugging potential issues where cfg80211/mac80211
seems to get into a different state from wpa_supplicant. In addition,
this provides an easy location for a workaround that could be added to
clear cfg80211/mac80211 state for unknown BSSes.
2009-12-02 16:45:31 +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
197ef6abef nl80211: Remove unneeded header file: ieee802_11_common.h
driver_nl80211.c does not use anything from this header file.
2009-11-29 13:06:44 +02:00
Jouni Malinen
fc4e2d9501 HT: Remove unneeded struct ht_cap_ie wrapper
It is simpler to just use the HT Capabilities IE payload structure
as-is.
2009-11-29 13:04:21 +02:00
Jouni Malinen
be8eb8ab3e Fix AP mode HT Capabilities IE to use A-MPDU Parameters from the driver
Instead of using hardcoded maximum A-MPDU length of 64 kB and no
restrictions on minimum MPDU Start Spacing, use the correct values
reported by the driver.
2009-11-29 12:21:26 +02:00
Jouni Malinen
8e2c104fa1 Resolve some sparse warnings
Mainly, this is including header files to get definitions for functions
which is good to verify that the parameters match. None of these are
issues that would have shown as incorrect behavior of the program.
2009-11-25 00:57:00 +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
Jouni Malinen
642187d6bf Merge set_key and hapd_set_key driver_ops into a single function 2009-11-23 16:58:32 +02:00
Jouni Malinen
d994a9b54e Move definitions away from hostapd_defs.h
Clean up definitions to reduce need to include header files from the
hostapd directory into files under the src subdirectories.
2009-11-23 16:14:39 +02:00
Jouni Malinen
c1bb3e0a62 nl80211: Build some client functionality unconditionally
Even though this makes the hostapd version a bit larger, the code will
be easier to maintain with the reduced number of complex ifdef blacks.
2009-11-23 15:40:29 +02:00
Jouni Malinen
dbb2618300 nl80211: Remove last remaining WEXT code
Clean up driver_nl80211.c by gettign rid of the last remaining WEXT use.
This requires that a recent mac80211 version is used to get full protection
in station mode via the authorized flag (IEEE 802.1X PAE).
2009-11-23 15:30:05 +02:00
Jouni Malinen
5d67487244 Merge set_beacon driver_ops into a single one
Clean up driver interface by merging hostapd and wpa_supplicant
specific set_beacon driver_ops into a single one. In addition,
merge set_beacon_int into to the same operation.
2009-11-23 15:26:05 +02:00
Jouni Malinen
62fa124ce2 nl80211/SME: Use reassociation when roaming within the ESS 2009-11-17 19:25:05 +02:00
Felix Fietkau
6980c19127 hostapd: fix AP mode initialization for nl80211
Always bring down the wlan interface, even when not changing the
BSSID, the interface also needs to be down for changing its type
from managed to AP mode.
2009-11-11 16:47:01 +02:00
Jouni Malinen
08eb154db5 Fix MCS set field to be based on driver info
Instead of using hardcoded Rx MCS bitmask (indexes 0..15 enabled),
use the real information from the driver capabilities.
2009-11-05 12:38:47 +02:00
Jouni Malinen
0ae7b08691 Work around some gcc 4.4 strict-aliasing warnings
gcc 4.4 ends up generating strict-aliasing warnings about some very common
networking socket uses that do not really result in a real problem and
cannot be easily avoided with union-based type-punning due to struct
definitions including another struct in system header files. To avoid having
to fully disable strict-aliasing warnings, provide a mechanism to hide the
typecast from aliasing for now. A cleaner solution will hopefully be found
in the future to handle these cases.
2009-11-04 19:49:14 +02:00
Jouni Malinen
6d6f4bb87f nl80211: Work around mac80211 limitation on (re)auth when authenticated
mac80211 does not currently allow (re)authentication when we are already
authenticated. In order to work around this, force deauthentication if
nl80211 authentication command fails with EALREADY. Unfortunately, the
workaround code in driver_nl80211.c alone is not enough since the
following disconnection event would clear wpa_supplicant authentication
state. To handle this, add some code to restore authentication state
when using userspace SME.

This workaround will hopefully become unnecessary in some point should
mac80211 start accepting new authentication requests even when in
authenticated state.
2009-10-12 09:39:55 +03:00
Jouni Malinen
b3ad11bb80 nl80211: Add parsing of NL80211_BSS_SEEN_MS_AGO into scan results 2009-10-01 17:53:22 +03:00
Jouni Malinen
d942a79e6a nl80211: Recognize NL80211_CMD_TRIGGER_SCAN events
Replace "nl80211: Ignored unknown event (cmd=33)" with
"nl80211: Scan trigger" to make debug output clearer. We do not
currently do anything with this event apart from showing it in
the debug log.
2009-10-01 13:58:17 +03:00
Author: Johannes Berg
1c766b094a nl80211: Fix a typo in set_sta_vlan()
The VLAN interface index needs to use NL80211_ATTR_STA_VLAN. It was
adding a duplicate NL80211_ATTR_IFINDEX.
2009-09-30 19:23:52 +03:00
Jouni Malinen
2aa5f84709 nl80211: Use defines for NL80211_KEY_CIPHER values 2009-09-15 11:23:48 +03:00
Jouni Malinen
d723bab4b3 Revert "nl80211: Share the same routine for NL80211_ATTR_KEY_CIPHER setup"
This reverts commit 5aa9cb5cca.

The nested key attribute is using different attribute values
(NL80211_KEY_* vs. NL80211_ATTR_KEY_*), so cannot share the same routine
for these purposes..
2009-09-15 11:21:25 +03:00
Jouni Malinen
5aa9cb5cca nl80211: Share the same routine for NL80211_ATTR_KEY_CIPHER setup 2009-09-15 10:54:41 +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
7da2c5276d nl80211: Ignore connect/roam/disconnect events when using SME
Getting double association/disassociation events can get core code
confused, so better filter out the extra events.
2009-09-04 16:39:41 +03:00
Zhu Yi
cfaab58007 nl80211: Connect API support
If the driver does not support separate authentication and association
steps, use the connect API instead.
2009-09-03 21:31:29 +03:00
Zhu Yi
da72a1c1ae nl80211: Add connect/disconnect event processing 2009-09-03 20:39:59 +03:00
Zhu Yi
93d1140077 nl80211: Check whether the driver support separate auth/assoc commands
This is an initial step in adding support for the new connect command.
For now, we just add the capability query. The actual use of the new
command will be added separately.
2009-09-03 20:36:09 +03:00
Zhu Yi
8d6ca17813 nl80211: Use defines for cipher suite selectors 2009-09-03 20:21:18 +03:00
Witold Sowa
3a57305f10 Fix a bug with ap_rx_from_unknown_sta() recursion
ap_rx_from_unknown_sta was going into infinite recursion,
or could even crash because of corrupted pointer cast.
2009-08-26 20:18:24 +03:00
Jouni Malinen
335ce76b1c nl80211: Use two sockets to avoid mixing command replies with events
Previously, both the command replies and unsolicited events were
received from the same socket. This could cause problems if an event
message is received between a command and the response to that command.
Using two sockets avoids this issue.
2009-08-26 12:10:50 +03:00
Johannes Berg
849ef835a7 nl80211: Fix WEP key configuration
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.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2009-07-26 21:22:55 +03:00
Johannes Berg
7a47d567cf hostapd: fix auth encryption
hostapd currently tries to encrypt all auth frames,
except for "OPEN" and "SHARED with transaction 3".
This means that it will send an encrypted "unknown
auth algorithm" reply for all other algorithsm. Fix
this by changing the logic to only encrypt shared
key auth frames with transaction 3.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2009-07-26 21:15:47 +03:00
Jon Loeliger
2e8eac2d67 Allow wpa_supplicant to use libnl-2.0
Change existing CONFIG_LIBNL20 compatibility code in
driver_nl80211.c to be used by both wpa_supplicant
and hostapd, but take care of nl_handle too now.

Propagate CONFIG_LIBNL20 out of .config file and onto
CFLAGS in the Makefile.

Use libnl-gen now too.

Signed-off-by: Jon Loeliger <jdl@bigfootnetworks.com>
---
2009-07-25 17:21:52 +03:00
Karl Hiramoto
a35187e71a hostapd: nl80211 retry creating a interface if it fails the first time
If hostapd segfaults, or is killed with -9, or the interface already exists,
when the interface is created, it will fail.

Configuration file: /tmp/hostapd/hostapd.conf
Failed to create interface mon.wlan0_0.
Using interface wlan0_0 with hwaddr 00:13:01:01:08:0a and ssid 'IG_0405_LAN'
Failed to set beacon head/tail or DTIM period
Failed to create interface wlan0_1.

Try to remove the interface and re-create it before aborting.
2009-05-29 21:48:19 +03:00
Jouni Malinen
0165255010 nl80211: Add support for IEEE 802.1X port control in station mode
This adds a cleaner mechanism for protecting against unauthorized
data frames than the previously used drop_unencrypted mechanism
(which is not even available with nl80211 and had to use a WEXT
ioctl.

The old drop_unencrypted code is left in for now as the final
surviving WEXT use in driver_nl80211.c. However, it can be removed
from the build by defining NO_WEXT. It may also be removed
eventually when most users are expected to be using recent enough
kernel version.
2009-05-14 21:54:47 +03:00
Jouni Malinen
7e76ee9c45 nl80211: Add support for NL80211_ATTR_STA_FLAGS2
For now, the old code using NL80211_ATTR_STA_FLAGS is left in for
backwards compatibility with older kernel versions. It may be removed
eventually when most users are expected to be running with new
enough kernel version.
2009-05-14 21:53:21 +03:00
Jouni Malinen
e572fa331c nl80211: Add MFP flag configuration for station mode
This fixes IEEE 802.11w use with driver_nl80211.c in station mode.
2009-05-12 11:55:18 +03:00
Jouni Malinen
da1fb17ca7 Add handling of SME auth/assoc timeout events
This allows wpa_supplicant to start searching for other APs (or re-try)
if the MLME times out.
2009-04-24 00:08:24 +03:00
Jouni Malinen
ad6494515e nl80211: Replace WEXT code for RTS/fragmentation threshold
nl80211 has new attributes for setting RTS and fragmentation threshold
values. Use these instead of the old WEXT ioctls.
2009-04-21 18:11:07 +03:00
Jouni Malinen
30985b8600 Remove unused set_retry() driver op 2009-04-21 18:01:43 +03:00
Jouni Malinen
a8d6ffa48f wpa_supplicant AP: Add sta_set_flags 2009-04-20 16:33:13 +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
13405f3542 nl80211: Mark state disassociated on local deauth/disassoc 2009-04-20 11:37:35 +03:00
Jouni Malinen
0f4e8b4f65 wpa_supplicant AP: add sta_add() and sta_remove() 2009-04-17 20:09:20 +03:00
Jouni Malinen
460456f832 nl80211: Add/remove monitor interface dynamically based on mode 2009-04-17 16:27:38 +03:00
Jouni Malinen
8a27af5c70 nl80211: Delete Beacon information on deinit in wpa_supplicant AP mode 2009-04-17 16:06:12 +03:00
Jouni Malinen
c811d5bc78 nl80211: Use ifndef hostapd to reduce binary size
Number of areas are not used by hostapd, so remove them from the build.
2009-04-17 15:36:06 +03:00
Jouni Malinen
6d550fbeea nl80211: Fix secondary BSS ifindex
This was broken by a cleanup patch that moved from ifname to ifindex.
2009-04-17 13:33:30 +03:00
Jouni Malinen
4b9841d34c Move more multi-BSSID processing into drv_callbacks.c
This simplifies driver wrapper operations and removes last direct
struct hostapd_data dereferences from driver_nl80211.c. In addition,
some of the TX callbacks are now fixed for secondary BSSes.
2009-04-17 13:29:29 +03:00
Jouni Malinen
412036f5f0 Provide own_addr buffer in hapd_init() parameters
This reduces number of places in driver wrapper that would need to
dereference struct hostapd_data pointer directly.
2009-04-17 11:55:51 +03:00
Jouni Malinen
731723a5bd Add own_addr as a parameter to sta_deauth() and sta_disassoc()
This fixes deauth/disassoc frames in secondary BSSes when using
multi-BSSID. In addition, it reduces need to dereference
struct hostapd_data inside driver wrappers.
2009-04-17 11:37:22 +03:00
Jouni Malinen
7af376e456 nl80211: Fix wpa_supplicant build 2009-04-17 11:23:24 +03:00
Jouni Malinen
41d931ee37 nl80211: Add helper functions for SIOC{G,S}IFHWADDR 2009-04-17 11:22:16 +03:00
Jouni Malinen
b8c4d6df5f Remove dead code related to WDS setup
hostapd does not have any code that would actually call this, so there
is no current need to try to figure out how to set up WDS links with
nl80211.
2009-04-16 19:08:58 +03:00
Jouni Malinen
bbaf083777 nl80211: Share more of init/deinit code 2009-04-16 17:16:41 +03:00
Jouni Malinen
37b7d08204 nl80211: Make it possible to build without WEXT support
NO_WEXT can be defined to disable all remaining WEXT uses from
driver_nl80211.c. This breaks some functionality, so the code is still
in use by default. Anyway, the new #ifdef blocks make it easy to search
for areas that need to be converted to nl80211.
2009-04-16 16:36:03 +03:00
Jouni Malinen
ad1e68e6b5 Clean up HT40 scan and share nl80211 scanning code
Instead of adding a new driver_ops for fetching neighbor BSS data (that
nl80211 driver interface had to scan during initialization), share the
same scan operations that wpa_supplicant is using. This gets rid of
duplicated scan code in driver_nl80211.c (and better yet, removes large
part of old WEXT code).

hostapd interface initialization is now completed in a callback, if
needed, i.e., he_features channel/hw_mode selection can use as much time
as needed. This can also help with radar detection in the future.
2009-04-16 16:22:40 +03:00
Jouni Malinen
9fff9fdcf9 nl80211: Use shared code for netlink initialization 2009-04-14 15:52:05 +03:00
Jouni Malinen
7da3abe711 nl80211: Merge handle_frame() implementations 2009-04-14 15:35:03 +03:00
Jouni Malinen
f019981aee nl82011: Use common code for setting channel 2009-04-14 15:15:33 +03:00
Jouni Malinen
c720f2cd56 nl80211: Remove inclusion of unneeded header files 2009-04-14 15:03:07 +03:00
Jouni Malinen
071f8ac4df nl80211: Fix management frame sending after driver_ops cleanup
hostapd ended up with unregistered send_mlme() in commit
9f324b61ba. Fix this by registering the
handler both for wpa_supplicant-AP and hostapd use. [Bug 310]
2009-04-14 13:12:58 +03:00
Jouni Malinen
b4fd6fab5b Share driver beacon configuration handlers 2009-04-09 23:44:39 +03:00
Jouni Malinen
92f475b4d8 Merge hostapd driver init functions into one
Use a parameter structure to pass in information that can be more easily
extended in the future. Include some of the parameters that were
previously read directly from hapd->conf in order to reduce need for
including hostapd/config.h into driver wrappers.
2009-04-09 23:28:21 +03:00
Jouni Malinen
989f52c639 Remove unneeded inclusion of hostapd header files 2009-04-09 20:53:29 +03:00
Jouni Malinen
2135f224db nl80211: Share common interface processing code 2009-04-09 20:41:21 +03:00
Jouni Malinen
072ad14cc4 nl80211: Share monitor mode filtering and reading functions 2009-04-09 20:20:21 +03:00