Commit Graph

672 Commits

Author SHA1 Message Date
Bob Copeland ecbc12ad6b {nl,mac}80211: add rssi to mesh candidates
When peering is in userspace, some implementations may want to control
which peers are accepted based on RSSI in addition to the information
elements being sent today.  Add signal level so that info is available
to clients.

Signed-off-by: Bob Copeland <bobcopeland@fb.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-11-09 11:41:20 +01:00
Bob Copeland 01d66fbd5b {nl,mac}80211: add dot11MeshConnectedToMeshGate to meshconf
When userspace is controlling mesh routing, it may have better
knowledge about whether a mesh STA is connected to a mesh
gate than the kernel mpath table.  Add dot11MeshConnectedToMeshGate
to the mesh config so that such applications can explicitly
signal that a mesh STA is connected to a gate, which will then
be advertised in the beacon.

Signed-off-by: Bob Copeland <bobcopeland@fb.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-11-09 11:39:44 +01:00
Bob Copeland dbdaee7aa6 {nl,mac}80211: report gate connectivity in station info
Capture the current state of gate connectivity from the mesh
formation field in mesh config whenever we receive a beacon,
and report that via GET_STATION.  This allows applications
doing mesh peering in userspace to make peering decisions
based on peers' current upstream connectivity.

Signed-off-by: Bob Copeland <bobcopeland@fb.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-11-09 11:38:29 +01:00
Johannes Berg 9bb7e0f24e cfg80211: add peer measurement with FTM initiator API
Add a new "peer measurement" API, that can be used to measure
certain things related to a peer. Right now, only implement
FTM (flight time measurement) over it, but the idea is that
it'll be extensible to also support measuring the necessary
things to calculate e.g. angle-of-arrival for WiGig.

The API is structured to have a generic list of peers and
channels to measure with/on, and then for each of those a
set of measurements (again, only FTM right now) to perform.

Results are sent to the requesting socket, including a final
complete message.

Closing the controlling netlink socket will abort a running
measurement.

v3:
 - add a bit to report "final" for partial results
 - remove list keeping etc. and just unicast out the results
   to the requester (big code reduction ...)
 - also send complete message unicast, and as a result
   remove the multicast group
 - separate out struct cfg80211_pmsr_ftm_request_peer
   from struct cfg80211_pmsr_request_peer
 - document timeout == 0 if no timeout
 - disallow setting timeout nl80211 attribute to 0,
   must not include attribute for no timeout
 - make MAC address randomization optional
 - change num bursts exponent default to 0 (1 burst, rather
   rather than the old default of 15==don't care)

v4:
 - clarify NL80211_ATTR_TIMEOUT documentation

v5:
 - remove unnecessary nl80211 multicast/family changes
 - remove partial results bit/flag, final is sufficient
 - add max_bursts_exponent, max_ftms_per_burst to capability
 - rename "frames per burst" -> "FTMs per burst"

v6:
 - rename cfg80211_pmsr_free_wdev() to cfg80211_pmsr_wdev_down()
   and call it in leave, so the device can't go down with any
   pending measurements

v7:
 - wording fixes (Lior)
 - fix ftm.max_bursts_exponent to allow having the limit of 0 (Lior)

v8:
 - copyright statements
 - minor coding style fixes
 - fix error path leak

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-11-09 11:20:13 +01:00
Ankita Bajaj 0d4e14a32d nl80211: Add per peer statistics to compute FCS error rate
Add support for drivers to report the total number of MPDUs received
and the number of MPDUs received with an FCS error from a specific
peer. These counters will be incremented only when the TA of the
frame matches the MAC address of the peer irrespective of FCS
error.

It should be noted that the TA field in the frame might be corrupted
when there is an FCS error and TA matching logic would fail in such
cases. Hence, FCS error counter might not be fully accurate, but it can
provide help in detecting bad RX links in significant number of cases.
This FCS error counter without full accuracy can be used, e.g., to
trigger a kick-out of a connected client with a bad link in AP mode to
force such a client to roam to another AP.

Signed-off-by: Ankita Bajaj <bankita@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-10-12 12:56:34 +02:00
Johannes Berg 188de5dd80 Merge remote-tracking branch 'net-next/master' into mac80211-next
Merge net-next, which pulled in net, so I can merge a few more
patches that would otherwise conflict.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-10-08 09:48:36 +02:00
David S. Miller 6f41617bf2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor conflict in net/core/rtnetlink.c, David Ahern's bug fix in 'net'
overlapped the renaming of a netlink attribute in net-next.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-03 21:00:17 -07:00
Johannes Berg b60ad34851 cfg80211: move cookie_counter out of wiphy
There's no reason for drivers to be able to access the
cfg80211 internal cookie counter; move it out of the
wiphy into the rdev structure.

While at it, also make it never assign 0 as a cookie
(we consider that invalid in some places), and warn if
we manage to do that for some reason (wrapping is not
likely to happen with a u64.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-10-02 09:58:36 +02:00
Pradeep Kumar Chitrapu 81e54d08d9 cfg80211: support FTM responder configuration/statistics
Allow userspace to enable fine timing measurement responder
functionality with configurable lci/civic parameters in AP mode.
This can be done at AP start or changing beacon parameters.

A new EXT_FEATURE flag is introduced for drivers to advertise
the capability.

Also nl80211 API support for retrieving statistics is added.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
[remove unused cfg80211_ftm_responder_params, clarify docs,
 move validation into policy]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-10-02 09:56:30 +02:00
Randy Dunlap 0bcbf65184 cfg80211: fix reg_query_regdb_wmm kernel-doc
Drop @ptr from kernel-doc for function reg_query_regdb_wmm().
This function parameter was recently removed so update the
kernel-doc to match that and remove the kernel-doc warnings.

Removes 109 occurrences of this warning message:
../include/net/cfg80211.h:4869: warning: Excess function parameter 'ptr' description in 'reg_query_regdb_wmm'

Fixes: 38cb87ee47 ("cfg80211: make wmm_rule part of the reg_rule structure")

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-09-26 11:17:04 +02:00
Shaul Triebitz 244eb9ae79 cfg80211: add he_capabilities (ext) IE to AP settings
Same as for HT and VHT.
This helps the lower level to know whether the AP supports HE.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-09-05 10:03:13 +02:00
David S. Miller 36302685f5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-04 21:33:03 -07:00
David S. Miller fc3e3bf55f Here are quite a large number of fixes, notably:
* various A-MSDU building fixes (currently only affects mt76)
  * syzkaller & spectre fixes in hwsim
  * TXQ vs. teardown fix that was causing crashes
  * embed WMM info in reg rule, bad code here had been causing crashes
  * one compilation issue with fix from Arnd (rfkill-gpio includes)
  * fixes for a race and bad data during/after channel switch
  * nl80211: a validation fix, attribute type & unit fixes
 along with other small fixes.
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Merge tag 'mac80211-for-davem-2018-09-03' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Here are quite a large number of fixes, notably:
 * various A-MSDU building fixes (currently only affects mt76)
 * syzkaller & spectre fixes in hwsim
 * TXQ vs. teardown fix that was causing crashes
 * embed WMM info in reg rule, bad code here had been causing crashes
 * one compilation issue with fix from Arnd (rfkill-gpio includes)
 * fixes for a race and bad data during/after channel switch
 * nl80211: a validation fix, attribute type & unit fixes
along with other small fixes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-03 22:12:02 -07:00
Alexei Avshalom Lazar 9cf0a0b4b6 cfg80211: Add support for 60GHz band channels 5 and 6
The current support in the 60GHz band is for channels 1-4.
Add support for channels 5 and 6.
This requires enlarging ieee80211_channel.center_freq from u16 to u32.

Signed-off-by: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-08-28 11:23:08 +02:00
Dedy Lansky 30ca1aa536 cfg80211/mac80211: make ieee80211_send_layer2_update a public function
Make ieee80211_send_layer2_update() a common function so other drivers
can re-use it.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-08-28 11:15:27 +02:00
Stanislaw Gruszka 38cb87ee47 cfg80211: make wmm_rule part of the reg_rule structure
Make wmm_rule be part of the reg_rule structure. This simplifies the
code a lot at the cost of having bigger memory usage. However in most
cases we have only few reg_rule's and when we do have many like in
iwlwifi we do not save memory as it allocates a separate wmm_rule for
each channel anyway.

This also fixes a bug reported in various places where somewhere the
pointers were corrupted and we ended up doing a null-dereference.

Fixes: 230ebaa189 ("cfg80211: read wmm rules from regulatory database")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
[rephrase commit message slightly]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-08-28 11:11:47 +02:00
David S. Miller 19725496da Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-07-24 19:21:58 -07:00
Denis Kenzior a948f71384 nl80211/mac80211: allow non-linear skb in rx_control_port
The current implementation of cfg80211_rx_control_port assumed that the
caller could provide a contiguous region of memory for the control port
frame to be sent up to userspace.  Unfortunately, many drivers produce
non-linear skbs, especially for data frames.  This resulted in userspace
getting notified of control port frames with correct metadata (from
address, port, etc) yet garbage / nonsense contents, resulting in bad
handshakes, disconnections, etc.

mac80211 linearizes skbs containing management frames.  But it didn't
seem worthwhile to do this for control port frames.  Thus the signature
of cfg80211_rx_control_port was changed to take the skb directly.
nl80211 then takes care of obtaining control port frame data directly
from the (linear | non-linear) skb.

The caller is still responsible for freeing the skb,
cfg80211_rx_control_port does not take ownership of it.

Fixes: 6a671a50f8 ("nl80211: Add CMD_CONTROL_PORT_FRAME API")
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
[fix some kernel-doc formatting, add fixes tag]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-07-06 14:34:42 +02:00
Luca Coelho c4cbaf7973 cfg80211: Add support for HE
Add support for the HE in cfg80211 and also add userspace API to
nl80211 to send rate information out, conforming with P802.11ax_D2.0.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2018-06-15 14:03:56 +02:00
Vidyullatha Kanchanapally 7f9a3e150e nl80211: Update ERP info using NL80211_CMD_UPDATE_CONNECT_PARAMS
Use NL80211_CMD_UPDATE_CONNECT_PARAMS to update new ERP information,
Association IEs and the Authentication type to driver / firmware which
will be used in subsequent roamings.

Signed-off-by: Vidyullatha Kanchanapally <vidyullatha@codeaurora.org>
[arend: extended fils-sk kernel doc and added check in wiphy_register()]
Reviewed-by: Jithu Jance <jithu.jance@broadcom.com>
Reviewed-by: Eylon Pedinovsky <eylon.pedinovsky@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-23 11:21:35 +02:00
Arend Van Spriel e841b7b11e nl80211: add FILS related parameters to ROAM event
In case of FILS shared key offload the parameters can change
upon roaming of which user-space needs to be notified.

Reviewed-by: Jithu Jance <jithu.jance@broadcom.com>
Reviewed-by: Eylon Pedinovsky <eylon.pedinovsky@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-23 11:19:02 +02:00
Arend Van Spriel 76804d28c3 cfg80211: use separate struct for FILS parameters
Put FILS related parameters into their own struct definition so
it can be reused for roam events in subsequent change.

Reviewed-by: Jithu Jance <jithu.jance@broadcom.com>
Reviewed-by: Eylon Pedinovsky <eylon.pedinovsky@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-23 11:07:35 +02:00
Johannes Berg f3a7ca6458 cfg80211: add missing kernel-doc
Add the kernel-doc missed earlier.

Fixes: 52539ca89f ("cfg80211: Expose TXQ stats and parameters to userspace")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-22 11:32:43 +02:00
Johannes Berg 7ea3e110f2 cfg80211: release station info tidstats where needed
This fixes memory leaks in cases where we got the station
info but failed sending it out properly.

Fixes: 8689c051a2 ("cfg80211: dynamically allocate per-tid stats for station info")
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-18 12:37:55 +02:00
Arend van Spriel 8689c051a2 cfg80211: dynamically allocate per-tid stats for station info
With the addition of TXQ stats in the per-tid statistics the struct
station_info grew significantly. This resulted in stack size warnings
due to the structure itself being above the limit for the warnings.

Add an allocation function that those who want to provide per-tid
stats should use to allocate the tid array, i.e.
struct station_info::pertid.

Cc: Toke Høiland-Jørgensen <toke@toke.dk>
Fixes: 52539ca89f ("cfg80211: Expose TXQ stats and parameters to userspace")
Signed-off-by: Arend van Spriel <aspriel@gmail.com>
[johannes: fix missing BIT() and logic by removing]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-18 11:14:34 +02:00
Toke Høiland-Jørgensen 52539ca89f cfg80211: Expose TXQ stats and parameters to userspace
This adds support for exporting the mac80211 TXQ stats via nl80211 by
way of a nested TXQ stats attribute, as well as for configuring the
quantum and limits that were previously only changeable through debugfs.

This commit adds just the nl80211 API, a subsequent commit adds support to
mac80211 itself.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-08 13:19:24 +02:00
Balaji Pothunoori 81d5439da8 cfg80211: average ack rssi support for data frames
Average ack rssi will be given to userspace via NL80211 interface
if firmware is capable. Userspace tool ‘iw’ can process this
information and give the output as one of the fields in
‘iw dev wlanX station dump’.

Example output :

localhost ~ #iw dev wlan-5000mhz station dump Station
34:f3:9a:aa:3b:29 (on wlan-5000mhz)
        inactive time:  5370 ms
        rx bytes:       85321
        rx packets:     576
        tx bytes:       14225
        tx packets:     71
        tx retries:     0
        tx failed:      2
        beacon loss:    0
        rx drop misc:   0
        signal:         -54 dBm
        signal avg:     -53 dBm
        tx bitrate:     866.7 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 2
        rx bitrate:     866.7 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 2
        avg ack signal: -56 dBm
        authorized:     yes
        authenticated:  yes
        associated:     yes
        preamble:       short
        WMM/WME:        yes
        MFP:            no
        TDLS peer:      no
        DTIM period:    2
        beacon interval:100
       short preamble: yes
       short slot time:yes
       connected time: 203 seconds

Main use case is to measure the signal strength of a connected station
to AP. Data packet transmit rates and bandwidth used by station can vary
a lot even if the station is at fixed location, especially if the rates
used are multi stream(2stream, 3stream) rates with different bandwidth(20/40/80 Mhz).
These multi stream rates are sensitive and station can use different transmit power
for each of the rate and bandwidth combinations. RSSI measured from these RX packets
on AP will be not stable and can vary a lot with in a short time.
Whereas 802.11 ack frames from station are sent relatively at a constant
rate (6/12/24 Mbps) with constant bandwidth(20 Mhz).
So average rssi of the ack packets is good and more accurate.

Signed-off-by: Balaji Pothunoori <bpothuno@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-07 21:37:20 +02:00
Denis Kenzior 1224f5831a nl80211: Add control_port_over_nl80211 to mesh_setup
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-03-29 14:01:27 +02:00
Denis Kenzior c3bfe1f6fc nl80211: Add control_port_over_nl80211 for ibss
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-03-29 14:00:27 +02:00
Denis Kenzior 64bf3d4bc2 nl80211: Add CONTROL_PORT_OVER_NL80211 attribute
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-03-29 13:45:04 +02:00
Denis Kenzior 2576a9ace4 nl80211: Implement TX of control port frames
This commit implements the TX side of NL80211_CMD_CONTROL_PORT_FRAME.
Userspace provides the raw EAPoL frame using NL80211_ATTR_FRAME.
Userspace should also provide the destination address and the protocol
type to use when sending the frame.  This is used to implement TX of
Pre-authentication frames.  If CONTROL_PORT_ETHERTYPE_NO_ENCRYPT is
specified, then the driver will be asked not to encrypt the outgoing
frame.

A new EXT_FEATURE flag is introduced so that nl80211 code can check
whether a given wiphy has capability to pass EAPoL frames over nl80211.

Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-03-29 13:44:19 +02:00
Denis Kenzior 6a671a50f8 nl80211: Add CMD_CONTROL_PORT_FRAME API
This commit also adds cfg80211_rx_control_port function.  This is used
to generate a CMD_CONTROL_PORT_FRAME event out to userspace.  The
conn_owner_nlportid is used as the unicast destination.  This means that
userspace must specify NL80211_ATTR_SOCKET_OWNER flag if control port
over nl80211 routing is requested in NL80211_CMD_CONNECT,
NL80211_CMD_ASSOCIATE, NL80211_CMD_START_AP or IBSS/mesh join.

Signed-off-by: Denis Kenzior <denkenz@gmail.com>
[johannes: fix return value of cfg80211_rx_control_port()]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-03-29 13:44:04 +02:00
Haim Dreyfuss 19d3577e35 cfg80211: Add API to allow querying regdb for wmm_rule
In general regulatory self managed devices maintain their own
regulatory profiles thus it doesn't have to query the regulatory database
on country change.

ETSI has recently introduced a new channel access mechanism for 5GHz
that all wlan devices need to comply with.
These values are stored in the regulatory database.
There are self managed devices which can't maintain these
values on their own. Add API to allow self managed regulatory devices
to query the regulatory database for high band wmm rule.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
[johannes: fix documentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-03-29 11:35:17 +02:00
tamizhr@codeaurora.org 5e78abd075 cfg80211: fix data type of sta_opmode_info parameter
Currently bw and smps_mode are u8 type value in sta_opmode_info
structure. This values filled in mac80211 from ieee80211_sta_rx_bandwidth
and ieee80211_smps_mode. These enum values are specific to mac80211 and
userspace/cfg80211 doesn't know about that. This will lead to incorrect
result/assumption by the user space application.
Change bw and smps_mode parameters to their respective enums in nl80211.

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-03-29 10:19:52 +02:00
Felix Fietkau 24bba078ec mac80211: support A-MSDU in fast-rx
Only works if the IV was stripped from packets. Create a smaller
variant of ieee80211_rx_h_amsdu, which bypasses checks already done
within the fast-rx context.

In order to do so, update cfg80211's ieee80211_data_to_8023_exthdr()
to take the offset between header and snap.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-02-27 13:30:53 +01:00
Venkateswara Naralasetty c4b50cd31d cfg80211: send ack_signal to user in probe client response
This patch provides support to get ack signal in probe client response
and in station info from user.

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
[squash in compilation fixes]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-02-19 13:21:23 +01:00
tamizhr@codeaurora.org 466b9936bf cfg80211: Add support to notify station's opmode change to userspace
ht/vht action frames will be sent to AP from station to notify
change of its ht/vht opmode(max bandwidth, smps mode or nss) modified
values. Currently these valuse used by driver/firmware for rate control
algorithm. This patch introduces NL80211_CMD_STA_OPMODE_CHANGED
command to notify those modified/current supported values(max bandwidth,
smps mode, max nss) to userspace application. This will be useful for the
application like steering, which closely monitoring station's capability
changes. Since the application has taken these values during station
association.

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-01-31 12:57:44 +01:00
Srinivas Dasari 40cbfa9021 cfg80211/nl80211: Optional authentication offload to userspace
This interface allows the host driver to offload the authentication to
user space. This is exclusively defined for host drivers that do not
define separate commands for authentication and association, but rely on
userspace SME (e.g., in wpa_supplicant for the ~WPA_DRIVER_FLAGS_SME
case) for the authentication to happen. This can be used to implement
SAE without full implementation in the kernel/firmware while still being
able to use NL80211_CMD_CONNECT with driver-based BSS selection.

Host driver sends NL80211_CMD_EXTERNAL_AUTH event to start/abort
authentication to the port on which connect is triggered and status
of authentication is further indicated by user space to host
driver through the same command response interface.

User space entities advertise this capability through the
NL80211_ATTR_EXTERNAL_AUTH_SUPP flag in the NL80211_CMD_CONNECT request.
Host drivers shall look at this capability to offload the authentication.

Signed-off-by: Srinivas Dasari <dasaris@qti.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
[add socket connection ownership check]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-01-31 12:56:52 +01:00
David S. Miller c02b3741eb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Overlapping changes all over.

The mini-qdisc bits were a little bit tricky, however.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17 00:10:42 -05:00
Johannes Berg 51a1aaa631 mac80211_hwsim: validate number of different channels
When creating a new radio on the fly, hwsim allows this
to be done with an arbitrary number of channels, but
cfg80211 only supports a limited number of simultaneous
channels, leading to a warning.

Fix this by validating the number - this requires moving
the define for the maximum out to a visible header file.

Reported-by: syzbot+8dd9051ff19940290931@syzkaller.appspotmail.com
Fixes: b59ec8dd43 ("mac80211_hwsim: fix number of channels in interface combinations")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-01-15 09:34:45 +01:00
David S. Miller 72deacce01 We have things all over the place, no point listing them.
One thing is notable: I applied two patches and later
 reverted them - we'll get back to that once all the driver
 situation is sorted out.
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Merge tag 'mac80211-next-for-davem-2018-01-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
We have things all over the place, no point listing them.

One thing is notable: I applied two patches and later
reverted them - we'll get back to that once all the driver
situation is sorted out.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-04 14:33:29 -05:00
Sunil Dutt 983dafaab7 cfg80211: Scan results to also report the per chain signal strength
This commit enhances the scan results to report the per chain signal
strength based on the latest BSS update. This provides similar
information to what is already available through STA information.

Signed-off-by: Sunil Dutt <usdutt@qti.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-12-19 10:37:31 +01:00
Jonathan Corbet 958a1b5a5e nl80211: Remove obsolete kerneldoc line
Commit ca986ad9bc (nl80211: allow multiple active scheduled scan
requests) removed WIPHY_FLAG_SUPPORTS_SCHED_SCAN but left the kerneldoc
description in place, leading to this docs-build warning:

   ./include/net/cfg80211.h:3278: warning: Excess enum value
           'WIPHY_FLAG_SUPPORTS_SCHED_SCAN' description in 'wiphy_flags'

Remove the line and gain a bit of peace.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-12-19 09:15:36 +01:00
Sergey Matyukevich 6c2fb1e652 cfg80211: cleanup signal strength units notation
Both cfg80211_rx_mgmt and cfg80211_report_obss_beacon functions send
reports to userspace using NL80211_ATTR_RX_SIGNAL_DBM attribute w/o
any processing of their input signal values. Which means that in
order to match userspace tools expectations, input signal values
for those functions are supposed to be in dBm units.

This patch cleans up comments, variable names, and trace reports
for those functions, replacing confusing 'mBm' by 'dBm'.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-12-11 12:19:31 +01:00
Tova Mussai 9ae3b172e8 cfg80211: IBSS: Add support for static WEP in driver for IBSS
Add support for drivers that implement static WEP internally for IBSS.
Add the WEP keys to the IBSS params struct, that will allow the driver
to use the keys in the join flow, and not only after the connection.

Signed-off-by: Tova Mussai <tova.mussai@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-12-11 12:19:21 +01:00
Avraham Stern 503c1fb98b cfg80211/nl80211: add a port authorized event
Add an event that indicates that a connection is authorized
(i.e. the 4 way handshake was performed by the driver). This event
should be sent by the driver after sending a connect/roamed event.

This is useful for networks that require 802.1X authentication.
In cases that the driver supports 4 way handshake offload, but the
802.1X authentication is managed by user space, the driver needs to
inform user space right after the 802.11 association was completed
so user space can initialize its 802.1X state machine etc.
However, it is also possible that the AP will choose to skip the
802.1X authentication (e.g. when PMKSA caching is used) and proceed
with the 4 way handshake immediately. In this case the driver needs
to inform user space that 802.1X authentication is no longer required
(e.g. to prevent user space from disconnecting since it did not get
any EAPOLs from the AP).

This is also useful for roaming, in which case it is possible that
the driver used the Fast Transition protocol so 802.1X is not
required.

Since there will now be a dedicated notification indicating that the
connection is authorized, the authorized flag can be removed from the
roamed event. Drivers can send the new port authorized event right
after sending the roamed event to indicate the new AP is already
authorized. This therefore reserves the old PORT_AUTHORIZED attribute.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-10-02 14:08:27 +02:00
Johannes Berg a6bcda4484 cfg80211: remove unused function ieee80211_data_from_8023()
This function hasn't been used since the removal of iwmc3200wifi
in 2012. It also appears to have a bug when qos=True, since then
it'll copy uninitialized stack memory to the SKB.

Just remove the function entirely.

Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-09-21 11:42:02 +02:00
Liad Kaufman 2512b1b18d mac80211: extend ieee80211_ie_split to support EXTENSION
Current ieee80211_ie_split() implementation doesn't
account for elements that are sub-elements of the
EXTENSION IE. To extend support to these IEs as well,
treat the WLAN_EID_EXTENSION ids in the %ids array
as indicating that the next id in the array is a
sub-element of the EXTENSION IE.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-09-21 11:41:58 +02:00
Avraham Stern f45cbe6e69 nl80211: add authorized flag to ROAM event
Drivers that initiate roaming while being connected to a network that
uses 802.1X authentication need to inform user space if 802.1X
authentication is further required after roaming.
For example, when using the Fast transition protocol, roaming within
the mobility domain does not require new 802.1X authentication, but
roaming to another mobility domain does.
In addition, some drivers may not support 802.1X authentication
(so it has to be done in user space), while other drivers do.

Add a flag to the roaming notification to indicate if user space is
required to do 802.1X authentication after the roaming or not.
This flag will only be used for networks that use 802.1X
authentication. For networks that do not use 802.1X authentication it
is assumed that no further action is required from user space after
the roaming notification.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
[arend.vanspriel@broadcom.com reuse NL80211_ATTR_PORT_AUTHORIZED]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
[rebase to apply w/o the flag in CONNECT]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-06-13 11:04:37 +02:00
Avraham Stern 3a00df5707 cfg80211: support 4-way handshake offloading for 802.1X
Add API for setting the PMK to the driver. For FT support, allow
setting also the PMK-R0 Name.

This can be used by drivers that support 4-Way handshake offload
while IEEE802.1X authentication is managed by upper layers.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
[arend.vanspriel@broadcom.com: add WANT_1X_4WAY_HS attribute]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
[reword NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X docs a bit to
say that the device may require it]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-06-13 10:44:09 +02:00