"wpa_cli set radio_disabled 1/0" can be used to disable/enable
radio to simulate out-of-radio-range condition in a testbed
device.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
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>
Remove the GPL notification text from files that were initially
contributed by Atheros Communications or Qualcomm Atheros.
Signed-hostap: Jouni Malinen <j@w1.fi>
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>
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>
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>
When the "bssid=" option is set for an IBSS network and ap_scan = 2,
ask the driver to fix this BSSID, if possible.
Previously, any "bssid=" option were ignored in IBSS mode when ap_scan=2.
Signed-hostap: Nicolas Cavallari <cavallar@lri.fr>
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>
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.
dev_id=<P2P Device Addr> can now be specified as an argument to
p2p_find to request P2P find for a specific P2P device.
Signed-hostap: Jouni Malinen <j@w1.fi>
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>
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>
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>
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>
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>
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>
I needed this patch to compile against the latest
libnl code. I added this to my config file:
CONFIG_LIBNL32=y
Signed-hostap: Ben Greear <greearb@candelatech.com>
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>
Add uapsd_queues and max_sp fields to sta_info struct,
and pass them to the sta_add callback.
These values are determined by the WMM IE in the (Re)Association Request.
Signed-off-by: Eliad Peller <eliad@wizery.com>
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>
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>
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>
Configure a Probe Response template for drivers that support it. The
template is updated when the Beacon template is updated.
The Probe Response template is propagated to the driver via the set_ap()
callback.
Signed-hostap: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
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>
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>
If Provision Discovery Request is sent for GO role (i.e., P2P Group ID
attribute is included), add the group interface name to the control
interface event on the GO. This makes it easier to figure out which
ctrl_iface needs to be used for wps_pbc/wps_pin command to authorize
the joining P2P client.
Signed-hostap: Jouni Malinen <j@w1.fi>
This can be used to request Provision Discovery Request to be sent
for the purpose of joining a running group, e.g., to request the GO
to display a PIN that we can then use with p2p_connect join command.
Signed-hostap: Jithu Jance <jithu@broadcom.com>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
(jm: This is based on the Android change that used driver_cmd. The same
implementation is used for the actual driver interface, but the commands
are now accessed through sched_scan/stop_sched_scan driver_ops instead
of driver_cmd)
IW_ENCODE_ALG_PMK and IW_ENC_CAPA_4WAY_HANDSHAKE are not defined in the
Android tree, so add compatibility defines for these.
Signed-hostap: Jouni Malinen <j@w1.fi>
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>
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>
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>
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>
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>
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>
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>
The new event can be used when EAPOL TX status can't be reported as a
complete 802.11 frame but is instead reported as just the EAPOL data as
originally passed to hapd_send_eapol().
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
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>
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>
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>
WEXT is not really changing anymore and more or less all Linux
distros come with linux/wireless.h that is recent enough to
allow the driver wrappers to be build.
Signed-hostap: Jouni Malinen <j@w1.fi>
This has been obsoleted by the more generic Linux WEXT (driver_wext.c)
support. The hostap and madwifi driver wrappers can now be used only
with hostapd. The old station interface remains available in releases up
to 1.x.
Signed-hostap: Jouni Malinen <j@w1.fi>
The driver wrappers broadcom, iphone, osx, and ralink have not been
maintained for a while and it does not look like they will be in the
future either. As such, remove them from the development branch. The
previous versions will be included in older releases up to 1.x.
Signed-hostap: Jouni Malinen <j@w1.fi>
Use a driver_ndis.c specific initialization function to fill in the
wpa_driver_ops information to make it easier to modify struct
wpa_driver_ops in the future. Being able to build driver_ndis.c
with MSVC was the only reason for having to maintain the same order
of function pointers in struct wpa_driver_ops and for having to
update driver_ndis.c for all changes in that structure.
Signed-hostap: Jouni Malinen <j@w1.fi>
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.
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>
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>
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>
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>
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>
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>
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.
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>
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>
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>
This function is actually needed for quite a bit more than just
user space MLME implementation. The old comment here has not been
accurate for a long time, so get rid of it.
These driver_ops functions set_channel, set_ssid, set_bssid,
mlme_add_sta, and mlme_remove_sta were used with the user space
MLME implementation in wpa_supplicant. That was only for testing
purposes and was removed, but these driver_ops were forgotten.
Remove them now to remove confusing driver_ops definitions.
This code was used only with driver_test.c to allow MLME operations
in hostapd to be tested without having to use a real radio. There
are no plans on extending this to any other use than testing and
mac80211_hwsim has now obsoled the need for this type of testing.
As such, we can drop this code from wpa_supplicant to clean up the
implementation of unnecessary complexity.
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.
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.
Some dualband cards can use more than five seconds to run through
a full scan, so increase the timeout to avoid hitting the missing
scan completed event workaround.
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.
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.
"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/"
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>
Pass SSIDs to be matched in scheduled scan results. Only the SSIDs
that are included in the match lists will be reported by the driver,
so the filtering can be offloaded to the hardware and the power
consumption can be reduced.
Signed-off-by: Luciano Coelho <coelho@ti.com>
With scheduled scan support, we may need to pass more than 10 SSIDs in
a single scan request. Some drivers (e.g., wl12xx) support up to 16
SSIDs at once.
Change WPAS_MAX_SCAN_SSIDS from 10 to 16.
Signed-off-by: Luciano Coelho <coelho@ti.com>
In new Linux kernel versions (>=3.0), nl80211 adds scheduled scan
capability. In order to use this feature to its full extent, we need
to support it in the wpa_supplicant core, so that it can also be used
by other drivers.
This commit adds initial scheduled scan support operations and events.
Signed-off-by: Luciano Coelho <coelho@ti.com>
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.
The new function, p2p_scan_ie_buf_len(), can be used to figure out
how large a buffer needs to be allocated for p2p_scan_ie() use. This
makes it easier to add new data into the buffer without forcing all
callers to be updated to use a larger buffer.
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.
The "too long" buffer (32+1 octets) prevented AP from starting up with
32 octet SSID with WE-21 and newer. Fix this by reducing the
SIOCGIWESSID buffer length.
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).
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.
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>
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>
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>
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().
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.
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.
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.
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.
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>
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>
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.
Only accept Probe Request frames that have a Wildcard BSSID and a
destination address that matches with our P2P Device Address or is the
broadcast address per P2P specification 3.1.2.1.1.
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>
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>
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>
When adding a new station, set the STA flags as part of the sta_add()
command. This ensures the flags are up to date when the station is added
by lower level drivers.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
In set_key handler, the seq[8] is in little endian order defined by
WPA. BSD kernel uses a u_int64_t value ik_keyrsc to represent it
internally. The kernel expects the native endian order for the value.
Thus, we need to detect the endian order and swap bytes when
necessary.
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.
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.
.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>
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.
AF_INET6 is not always enabled by default, so use AF_INET instead. In
addition, use the old fixed length, 2048, as a failover value if the
sysctl fails for any reason.
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.
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.
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>
This allows driver wrappers to indicate whether the association was
done using Association Request/Response or with Reassociation
Request/Response frames.
The buffer size for routing socket is fixed to 2048.
This patch fix it to obtain the size from OS.
This patch worked on x86 platform with NetBSD 5.0.2.
The DBus code will want to have perfect matching of dev_found and the
dev_lost it adds so it doesn't need to keep track internally. Enable
that with a new flag in the core that tracks whether we have already
notified about this -- the existing users can ignore it.
The part where this is always set to 1 if the new device is discovered
by a driver that has P2P in the driver is buggy -- the driver should
feed the P2P peer database and then that should feed the notification
here instead.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This embeds some information about each P2P peer that will be publically
visible in a struct that is shared.
The dev_found notification function is also passed the new struct, which
requires some work for the driver-based P2P management.
Signed-off-by: Konguraj(Raj) Kulanthaivel <konguraj.kulanthaivel@intel.com>
Signed-off-by: Fabien Marotte <fabienx.marotte@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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>
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>
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>
There is no real reason to maintain these in the current development
branch anymore. If someone really needs support for the obsolete
driver interfaces, these can be found in older wpa_supplicant
branches.
driver_atmel.c
- vendor-specific interface for ATMEL AT76C5XXx cards
- for some old out-of-tree driver; not for the upstream atmel*
drivers
driver_ndiswrapper.c
- vendor-specific interface for an out-of-tree driver
- ndiswrapper should work with driver_wext.c, too
driver_ipw.c
- vendor-specific interface for old ipw2100/2200 driver
- the upstream driver works with driver_wext.c (and does not work
with the old interface)
driver_hermes.c
- vendor driver that was not even included in the main wpa_supplicant
releases
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>
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).
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.
Use NULL instead of (u8 *) "" as the seq value and make sure the
driver wrapper implementations can handle NULL value. This was
previously already done in number of places, but not everywhere.
wpa_supplicant seems to crash from time to time on a NetBSD 4.0 MIPS
platform. The root cause turned out to be a MIPS alignment issue.
In my wpa_supplicant crash case, in function
wpa_driver_bsd_event_receive (from driver_bsd.c), the buf[2048] address
is started from i.e. 0x7fffd546, which is not 4 bytes aligned. Later
when it is casted to (struct if_msghdr *), and rtm->rtm_flags is used.
rtm->rtm_flags is "int" type, but its address is not 4 bytes aligned.
This is because the start address of rtm is not 4 bytes aligned.
Unfortunately in NetBSD MIPS kernel (unlike Linux MIPS kernel emulates
unaligned access in its exception handler), the default behavior is to
generate a memory fault to the application that accesses unaligned
memory address. Thus comes the early mentioned wpa_supplicant crash. An
interesting note is when I'm using the wpa_supplicant version 0.4.9, I
never saw this problem. Maybe the stack layout is different. But I
didn't look into details.
I used below patch to resolve this problem. Now it runs correctly for at
least several hours. But you might have a better fix (maybe we can use
malloc/free so that it is at least cache line aligned?). I'm also not
sure if other drivers should have the same problem.
This adds partial callbacks and events to allow P2P management to be
implemented in a driver/firmware. This is not yet complete and is
very much subject to change in the future.
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>
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>
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>
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.
