Commit graph

464 commits

Author SHA1 Message Date
Ashok Ponnaiah
f5701cc66e OWE: Clean up pointer check in a testing code path
Check wpa_auth_write_assoc_resp_owe() return value to keep static
analyzers happier. The code path where this could happen is not really
reachable due to the separate hapd->conf->own_ie_override check and
wpa_auth_write_assoc_resp_owe() returning NULL only in an error case in
the override path. Furthermore, clean up the pointer return value to use
a proper pointer (NULL vs. 0).

Signed-off-by: Ashok Ponnaiah <aponnaia@codeaurora.org>
2018-03-19 19:08:34 +02:00
Tamizh chelvam
92eb00aec2 Extend ACL check for Probe Request frames
Extend ACL check to deny Probe Request frames for the client which does
not pass ACL check. Skip this check for the case where RADIUS ACL is
used to avoid excessive load on the RADIUS authentication server due to
Probe Request frames. This patch add wpa_msg event for auth and assoc
rejection due to acl reject.

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
2018-03-03 00:42:16 +02:00
Ashok Ponnaiah
a22e235fd0 OWE: Add testing RSNE for OWE assoc response with driver SME/MLME
Allow RSNE to be overwritten for testing purposes also in the
driver-based SME/MLME case.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-02-12 21:31:04 +02:00
Jouni Malinen
659ac96d7f ieee802_11_mgmt: Handle frame info more consistently
Check for the fi parameter to be non-NULL before trying to fetch the
ssi_signal information similarly to how the fi->freq was already
handled. While the meta information is supposed to be available, it
looks like there is at least one corner case where fi == NULL could be
used (Authentication frame reprocessing after RADIUS-based ACL).

Signed-off-by: Jouni Malinen <j@w1.fi>
2018-02-07 12:34:41 +02:00
Ashok Ponnaiah
79ce2d519b OWE: Rename function to match use (driver-SME/MLME)
This function is used to process a (Re)Association Request frame, so
rename it appropriately to mention assoc_req instead of auth_req.

Signed-off-by: Ashok Ponnaiah <aponnaia@codeaurora.org>
2018-02-06 20:27:41 +02:00
Ashok Ponnaiah
759da93a89 OWE: Check for ECDH availability before use (driver-SME/MLME)
Verify that the STA has ECDH data available before trying to use this
data to add the OWE DH Params element.

Signed-off-by: Ashok Ponnaiah <aponnaia@codeaurora.org>
2018-02-06 20:25:41 +02:00
Ashok Ponnaiah
af65ef28f4 OWE: Add RSNE when not using PMKSA caching (driver-SME/MLME)
RSNE needs to be added both with and without use of PMKSA caching.

Signed-off-by: Ashok Ponnaiah <aponnaia@codeaurora.org>
2018-02-06 20:22:53 +02:00
Ashok Ponnaiah
5850cba384 OWE: Support DH groups 20 and 21 with driver-SME/MLME
This was already the case with the hostapd-based SME/MLME
implementation, but the OWE DH Param element construction for the
driver-based SME/MLME needed a matching change to set the group
properly.

Signed-off-by: Ashok Ponnaiah <aponnaia@codeaurora.org>
2018-02-06 20:20:22 +02:00
Ashok Ponnaiah
cd483be252 OWE: Use PMKSA caching if available with driver AP MLME
If a matching PMKSA cache entry is present for an OWE client, use it and
do not go through DH while processing Association Rquest frame.
Association Response frame will identify the PMKID in such a case and DH
parameters won't be present.

Signed-off-by: Ashok Ponnaiah <aponnaia@codeaurora.org>
2018-02-01 23:58:46 +02:00
Jouni Malinen
feba5848be Replace RSNE group key management mismatch status/reason codes
Use "cipher out of policy" value instead of invalid group cipher (which
is for the group data frame cipher) and management frame policy
violation (which is used for MFPC/MFPR mismatch).

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-01-12 01:12:00 +02:00
Jouni Malinen
c5cc7a59ac Report offchannel RX frame frequency to hostapd
Not all code paths for management frame RX reporting delivered the
correct frequency for offchannel RX cases. This is needed mainly for
Public Action frame processing in some special cases where AP is
operating, but an exchange is done on a non-operational channel. For
example, DPP Initiator role may need to do this.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-01-08 03:37:48 +02:00
Jouni Malinen
c4fc7e31c7 SAE: Set special Sc value when moving to Accepted state
Set Sc to 2^16-1 when moving to Accepted state per IEEE Std 802.11-2016,
12.4.8.6.5 (Protocol instance behavior - Confirmed state). This allows
the peer in Accepted state to silently ignore unnecessary
retransmissions of the Confirm message.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-12-27 12:19:08 +02:00
Jouni Malinen
abcbd0604c SAE: Add Rc variable and peer send-confirm validation
This implements the behavior described in IEEE Std 802.11-2016,
12.4.8.6.6 (Protocol instance behavior - Accepted state) to silently
discard received Confirm message in the Accepted state if the new
message does not use an incremented send-confirm value or if the special
2^16-1 value is used. This avoids unnecessary processing of
retransmitted Confirm messages.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-12-27 12:19:08 +02:00
Jouni Malinen
9249afc8e1 SAE: Print state changes in debug log
This makes it easier to follow state changes in SAE protocol instances.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-12-27 00:07:42 +02:00
Jouni Malinen
d8b841eba8 SAE: Make dot11RSNASAESync configurable
The new hostapd.conf parameter sae_sync (default: 5) can now be used to
configure the dot11RSNASAESync value to specify the maximum number of
synchronization errors that are allowed to happen prior to
disassociation of the offending SAE peer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-12-26 12:46:22 +02:00
Jouni Malinen
1489fcf87d FILS: Do not leave error value in left counter
If fils_decrypt_assoc() were to fail on the AP side, the previous
implementation could have continued through the response generation
using left = -1. That could have resulted in unexpected processing if
this value were to be used as the length of the remaining (unencrypted)
IEs. Fix this by not updating left in the failure case.

Fixes: 78815f3dde ("FILS: Decrypt Association Request elements and check Key-Auth (AP)")
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-24 12:26:38 +02:00
Jouni Malinen
fe12ae777f Fix Status Code in TKIP countermeasures case
The previously used WLAN_REASON_MICHAEL_MIC_FAILURE (14) value as a
response to Authentication frame or (Re)Association Request frame is not
correct since the resp value is encoded in the Status Code (not Reason
Code) field. Status Code 14 is WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION
which is really what this value would have meant in the response frames.

There is no Michael MIC failure status code, so have to use the generic
"Unspecified failure" (1) reason code for these cases.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-03 19:59:46 +02:00
bhagavathi perumal s
65f9db6bc2 hostapd: Add extended capabilities into STA command
Signed-off-by: bhagavathi perumal s <bperumal@qti.qualcomm.com>
2017-10-31 00:31:31 +02:00
bhagavathi perumal s
ba72b4b126 hostapd: Add Min/Max Transmit Power Capability into STA command
This provides access to the Minimum/Maximum Transmit Power Capabilitie
fileds (the nominal minimum/maximum transmit power with which the STA
is capable of transmitting in the current channel; signed integer in
units of decibels relative to 1 mW).

Signed-off-by: bhagavathi perumal s <bperumal@qti.qualcomm.com>
2017-10-31 00:22:58 +02:00
Ashok Kumar Ponnaiah
33c8bbd8ca OWE: Add AP mode handling of OWE with drivers that implement SME
Handle OWE DH exchange and key setup when processing the association
event from a driver that implements AP SME.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-10-30 23:24:42 +02:00
Ashok Kumar Ponnaiah
28d1264131 Check hostapd current_mode before dereferencing it in additional places
While most places using this should be for cases where the hw_features
functionality is required, there seem to be some paths that are getting
exposed in new OWE related operations where that might not be the case.
Add explicit NULL pointer checks to avoid dereferencing the pointer if
it is not set when operating with driver wrappers that do not provide
sufficient information.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-10-30 23:20:25 +02:00
Jouni Malinen
dc4d271c6d DPP: Update AES-SIV AD for DPP Authentication frames
The protocol design was updated to protect the six octets in the header
before the attributes.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-10-18 22:51:30 +03:00
Jouni Malinen
2f1357fb62 FILS: Accept another (Re)Association Request frame during an association
The previous implementation ended up starting a new EAPOL-Key 4-way
handshake if the STA were to attempt to perform another association.
This resulted in immediate disconnection since the PTK was not ready for
configuring FILS TK at the point when EAPOL-Key msg 1/4 is sent out.
This is better than alloing the association to continue with the same TK
reconfigured, but not really ideal.

Address this potential sequence by not starting a new 4-way handshake on
the additional association attempt. Instead, allow the association to
complete, but do so without reconfiguring the TK to avoid potential
issues with PN reuse with the same TK.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-10-16 02:03:47 +03:00
Jouni Malinen
df94906201 Add MGMT_TX_STATUS_PROCESS command for testing purposes
This allows ext_mgmt_frame_handling=1 cases with hostapd to process TX
status events based on external processing. This is useful for increased
test coverage of management frame processing.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-10-16 02:03:47 +03:00
Mathy Vanhoef
0e3bd7ac68 hostapd: Avoid key reinstallation in FT handshake
Do not reinstall TK to the driver during Reassociation Response frame
processing if the first attempt of setting the TK succeeded. This avoids
issues related to clearing the TX/RX PN that could result in reusing
same PN values for transmitted frames (e.g., due to CCM nonce reuse and
also hitting replay protection on the receiver) and accepting replayed
frames on RX side.

This issue was introduced by the commit
0e84c25434 ('FT: Fix PTK configuration in
authenticator') which allowed wpa_ft_install_ptk() to be called multiple
times with the same PTK. While the second configuration attempt is
needed with some drivers, it must be done only if the first attempt
failed.

Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
2017-10-16 02:03:47 +03:00
Jouni Malinen
2377c1caef SAE: Allow SAE password to be configured separately (AP)
The new sae_password hostapd configuration parameter can now be used to
set the SAE password instead of the previously used wpa_passphrase
parameter. This allows shorter than 8 characters and longer than 63
characters long passwords to be used. In addition, this makes it
possible to configure a BSS with both WPA-PSK and SAE enabled to use
different passphrase/password based on which AKM is selected.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-10-11 23:10:19 +03:00
Jouni Malinen
91cc34bf32 OWE: Allow set of enabled DH groups to be limited on AP
The new hostapd configuration parameter owe_groups can be used to
specify a subset of the allowed DH groups as a space separated list of
group identifiers.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-10-10 21:03:57 +03:00
Jouni Malinen
d90f10fa41 OWE: PMKSA caching in AP mode
This extends OWE support in hostapd to allow PMKSA caching to be used.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-10-09 12:12:54 +03:00
Jouni Malinen
7a12edd163 OWE: Support DH groups 20 (NIST P-384) and 21 (NIST P-521) in AP mode
This extends OWE support in hostapd to allow DH groups 20 and 21 to be
used in addition to the mandatory group 19 (NIST P-256).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-10-08 17:12:35 +03:00
Jouni Malinen
d8c8d85753 OWE: Include RSNE in (Re)Association Response frame
This is not normally done in RSN, but RFC 8110 seems to imply that AP
has to include OWE AKM in the RSNE within these frames. So, add the RSNE
to (Re)Association Response frames when OWE is being negotiated.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-10-08 17:12:35 +03:00
Ilan Peer
fd35ed5bba AP: Remove unneeded check for 'added_unassociated'
In fils_hlp_finish_assoc() the station is already added to the
driver so it is not needed to check the 'added_unassociated'
flag.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2017-09-25 21:21:22 +03:00
Jouni Malinen
4cada9dcc1 FILS: Add DHss into FILS-Key-Data derivation when using FILS SK+PFS
This part is missing from IEEE Std 802.11ai-2016, but the lack of DHss
here means there would not be proper PFS for the case where PMKSA
caching is used with FILS SK+PFS authentication. This was not really the
intent of the FILS design and that issue was fixed during REVmd work
with the changes proposed in
https://mentor.ieee.org/802.11/dcn/17/11-17-0906-04-000m-fils-fixes.docx
that add DHss into FILS-Key-Data (and PTK, in practice) derivation for
the PMKSA caching case so that a unique ICK, KEK, and TK are derived
even when using the same PMK.

Note: This is not backwards compatible, i.e., this breaks PMKSA caching
with FILS SK+PFS if only STA or AP side implementation is updated.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-09-13 22:17:58 +03:00
Jouni Malinen
3648d8a185 SAE: Allow commit fields to be overridden for testing purposes
The new sae_commit_override=<hexdump> parameter can be used to force
hostapd to override SAE commit message fields for testing purposes. This
is included only in CONFIG_TESTING_OPTIONS=y builds.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-09-04 13:32:03 +03:00
Jouni Malinen
e75335384a SAE: Add testing code for reflection attack
Allow hostapd to be configured to perform SAE reflection attack for SAE
testing purposes with sae_reflection_attack=1 configuration parameter.
This is included only in CONFIG_TESTING_OPTIONS=y builds.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-09-04 13:32:03 +03:00
Avraham Stern
b5bf84ba39 WNM: Differentiate between WNM for station and for AP in build
Previously, CONFIG_WNM enabled build that supports WNM for both
station mode and AP mode. However, in most wpa_supplicant cases only
station mode WNM is required and there is no need for AP mode WNM.

Add support to differentiate between station mode WNM and AP mode
WNM in wpa_supplicant builds by adding CONFIG_WNM_AP that should be
used when AP mode WNM support is required in addition to station mode
WNM. This allows binary size to be reduced for builds that require
only the station side WNM functionality.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2017-07-18 13:28:09 +03:00
Andrei Otcheretianski
bfbc41eace DPP: Fix compilation without openssl
dpp.h file requires openssl in order to compile, which breaks
compilation on systems without it.
Move DPP_OUI_TYPE to ieee802_11_defs.h and don't include dpp.h when
not really needed.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
2017-07-07 23:37:45 +03:00
Jeffin Mammen
8b5ddda5fb FILS: Add HLP support with driver-based AP SME
This allows HLP processing to postpone association processing in
hostapd_notify_assoc().

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-07-06 15:24:42 +03:00
Jouni Malinen
b3e567c890 FILS: ERP-based PMKSA cache addition on AP
hostapd did not add a new PMKSA cache entry when FILS shared key
authentication was used, i.e., only the initial full authentication
resulted in a PMKSA cache entry being created. Derive the PMKID for the
ERP case as well and add a PMKSA cache entry if the ERP exchange
succeeds.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-07-05 17:52:23 +03:00
Jouni Malinen
bfe448331f FILS: Fix a frame name in a debug print
The EAP message included in FILS Wrapped Data from the non-AP STA to the
AP is EAP-Initiate/Re-auth.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-07-05 17:29:44 +03:00
Jouni Malinen
efeada91a4 DPP: PKEX in hostapd
Allow hostapd to initiate and respond with PKEX bootstrapping similarly
to how this was implemented in wpa_supplicant.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-07-03 13:03:34 +03:00
Jouni Malinen
567da5bbd0 DPP: Add new AKM
This new AKM is used with DPP when using the signed Connector to derive
a PMK. Since the KCK, KEK, and MIC lengths are variable within a single
AKM, this needs number of additional changes to get the PMK length
delivered to places that need to figure out the lengths of the PTK
components.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-06-19 21:13:17 +03:00
Jouni Malinen
9c2b8204e6 DPP: Integration for hostapd
This adds DPP bootstrapping, authentication, and configuration into
hostapd similarly to how the design was integrated in wpa_supplicant.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-06-19 21:13:17 +03:00
Vidyullatha Kanchanapally
115d5e2221 hostapd: Fix handling a 20/40 BSS Coexistence Management frame
hostapd processes a received 20/40 BSS Coexistence management frame, but
if no separate callbacks are registered for handling Public Action
frames it eventually sends a reply with MSB of category code set to 1
thinking that the received frame is an invalid frame. This could happen
based on whether hostapd was built and enabled with functionality using
the callback functions.

Fix this by explicitly returning 1 from the function when the 20/40 BSS
Coexistence Management frame is processed.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-06-05 08:04:44 +03:00
Jouni Malinen
80ddf5d995 FILS: Fix Key-Auth derivation for SK+PFS for authenticator side
The conditional gSTA and gAP (DH public keys) were not previously
included in Key-Auth derivation, but they are needed for the PFS case.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-05-07 17:04:29 +03:00
Jeffin Mammen
5cee22ca47 FILS: Make handle_auth_fils() re-usable for driver-based AP SME
Allow this function to be called from outside ieee802_11.c and with the
final steps replaced through a callback function.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-04-24 01:07:39 +03:00
Jeffin Mammen
5e5f8c816b FILS: Move authentication response handling into a helper function
This can be reused when splitting handle_auth_fils() to support the
driver-based AP SME case.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-04-24 01:07:36 +03:00
Jeffin Mammen
b8a3453aca FILS: Pass only IE area to handle_auth_fils()
This function does not need the frame header, so pass in only the IE
area to make it easier to share this for driver-based AP SME handling.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-04-23 18:24:38 +03:00
Jouni Malinen
5db997e343 FILS: Add FTE into FILS Authentication frame from AP when using FILS+FT
MDE was already added with RSNE, but FTE needed to be added to the FILS
Authentication frame for the FT initial mobility domain association
using FILS authentication case.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-04-02 22:38:48 +03:00
Jouni Malinen
1764559eef FILS: Add FILS SK auth PFS support in AP mode
This adds an option to configure hostapd to enable use of perfect
forward secrecy option in FILS shared key authentication. A new build
option CONFIG_FILS_SK_PFS=y can be used to include this functionality. A
new runtime configuration parameter fils_dh_group is used to enable this
by specifying which DH group to use. For example, fils_dh_group=19 would
allow FILS SK PFS to be used with a 256-bit random ECP group.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-03-12 23:20:32 +02:00
Jouni Malinen
09368515d1 OWE: Process Diffie-Hellman Parameter element in AP mode
This adds AP side processing for OWE Diffie-Hellman Parameter element in
(Re)Association Request frame and adding it in (Re)Association Response
frame.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-03-12 19:24:11 +02:00
Johannes Berg
a1f11e34c4 Use os_memdup()
This leads to cleaner code overall, and also reduces the size
of the hostapd and wpa_supplicant binaries (in hwsim test build
on x86_64) by about 2.5 and 3.5KiB respectively.

The mechanical conversions all over the code were done with
the following spatch:

    @@
    expression SIZE, SRC;
    expression a;
    @@
    -a = os_malloc(SIZE);
    +a = os_memdup(SRC, SIZE);
    <...
    if (!a) {...}
    ...>
    -os_memcpy(a, SRC, SIZE);

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-03-07 13:19:10 +02:00
Jouni Malinen
7eace3787c FILS: Find PMKSA cache entries on AP based on FILS Cache Identifier
This allows PMKSA cache entries to be shared between all the BSSs
operated by the same hostapd process when those BSSs use the same FILS
Cache Identifier value.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-02-21 12:18:58 +02:00
Jouni Malinen
ae26d30213 Fix "IEEE 802.11: Ignored Action frame" debug message
The arguments to printf were in incorrect order which resulted in
incorrect STA address in the debug message.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-02-11 12:08:12 +02:00
Jouni Malinen
84bb12aa6d FILS: Fix send_assoc_resp() HLP extension to cover sta == NULL
Commit 91d91abf6f ('FILS: DHCP relay for
HLP requests') added steps that are conditional on sta->fils_hlp_resp
being non-NULL. One of these cases within send_assoc_resp() was properly
protected from sta == NULL error case (that is now possible after a
recent DMG change), but the first one was not. A DMG error case in a
CONFIG_FILS=y build could have hit a NULL pointer dereference here. Fix
this by verifying sta != NULL more consistently.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-02-05 16:40:15 +02:00
Jouni Malinen
91d91abf6f FILS: DHCP relay for HLP requests
The new dhcp_server configuration parameter can now be used to configure
hostapd to act as a DHCP relay for DHCPDISCOVER messages received as
FILS HLP requests. The dhcp_rapid_commit_proxy=1 parameter can be used
to configure hostapd to convert 4 message DHCP exchange into a 2 message
exchange in case the DHCP server does not support DHCP rapid commit
option.

The fils_hlp_wait_time parameter can be used to set the time hostapd
waits for an HLP response. This matches the dot11HLPWaitTime in IEEE Std
802.11ai-2016.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-02-01 18:17:39 +02:00
Jouni Malinen
54b04d6f39 FILS: Move HLP request handling into a separate file
This is independent functionality from the core IEEE 802.11 management
handling and will increase significantly in size, so it is cleaner to
maintain this in a separate source code file.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-01-31 17:46:13 +02:00
Dedy Lansky
53d171440f AP: Check ACL upon association request for 802.11ad
With device_ap_sme disabled, ACL was checked upon authentication
request. In 802.11ad there is no authentication phase so need to check
ACL upon association.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
2017-01-30 22:22:40 +02:00
Jouni Malinen
5208160b4b FILS: Parse received FILS HLP requests
This adds parsing of received FILS HLP requests from (Re)Association
Request frames. The reassembled requests are verified to be in valid
format and are printed in debug output. However, actual processing or
forwarding of the packets is not yet implemented, i.e., the vendor
specific frame filtering logic is for now practically dropping all HLP
requests.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-01-29 14:32:17 +02:00
Jouni Malinen
fa67debf4c Fix duplicate Reassociation Request frame dropping
Relational operators (==) have higher precedence than the ternary
conditional in C. The last_subtype check for association/reassociation
was broken due to incorrect assumption about the precedence. Fix this by
adding parenthesis around the ternary conditional.

The previous implementation worked for Association Request frames by
accident since WLAN_FC_STYPE_ASSOC_REQ happens to have value 0 and when
the last receive frame was an Association Request frame, the
sta->last_subtype == reassoc check was true and non-zero
WLAN_FC_STYPE_REASSOC_REQ was interpreted as true. However, this was
broken for Reassociation Request frame. reassoc == 1 in that case could
have matched received Association Response frame (subtype == 1), but
those are not received in AP mode and as such, this did not break other
behavior apart from not being able to drop duplicated Reassociation
Request frames.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-01-14 01:04:31 +02:00
Jouni Malinen
fcd3d6ce32 FILS: Fix PMK and PMKID derivation from ERP
This adds helper functions for deriving PMK and PMKID from ERP exchange
in FILS shared key authentication as defined in IEEE Std 802.11ai-2016,
12.12.2.5.2 (PMKSA key derivation with FILS authentication). These
functions is used to fix PMK and PMKID derivation which were previously
using the rMSK directly as PMK instead of following the FILS protocol to
derive PMK with HMAC from nonces and rMSK.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-01-13 21:07:40 +02:00
Jouni Malinen
167f78a5e8 Send BEACON-REQ-TX-STATUS event only for beacon reports
Check the action TX status callback contents more thoroughly and report
the BEACON-REQ-TX-STATUS event only if the Measurement Type indicates
beacon report.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-01-07 22:23:13 +02:00
Dedy Lansky
05e5e615e6 AP: Skip authentication/deauthentication phase for DMG/IEEE 802.11ad
Authentication and Deauthentication frames are not used in DMG/IEEE
802.11ad networks. For DMG/IEEE 802.11ad the following was implemented:
Upon receiving association request, allocate the sta object and
initialize it as if authentication took place. Upon receiving
disassociation, deallocate the sta object.
ap_sta_disassociate/ap_sta_deauthenticate/ap_sta_disconnect all use
disassociation instead of deauthentication. In driver_nl80211,
i802_sta_deauth() is routed to i802_sta_disassoc().

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
2017-01-05 17:28:23 +02:00
Dedy Lansky
0c4b9025c1 AP: Do not look for supported rates in DMG/IEEE 802.11ad
Supported Rates element is not present in DMG/IEEE 802.11ad frames. Make
copy_supp_rates() immediately return with success if hardware mode is
IEEE 802.11ad.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
2017-01-05 17:05:00 +02:00
Jouni Malinen
f3383366aa Report beacon request TX status as control interface event
The new BEACON-REQ-TX-STATUS control interface event is now used to
report whether a beacon request (from REQ_BEACON command) was delivered
successfully. This event has the following parameters: <STA address>
<dialog token> <ack=0/1>.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-01-03 16:02:58 +02:00
Jouni Malinen
1f0fdaf0e4 Fix race condition between AssocResp callback and 4addr event
It is apparently possible for the NL80211_CMD_UNEXPECTED_4ADDR_FRAME
event to be delivered to hostapd before the NL80211_CMD_FRAME_TX_STATUS
event for (Re)Association Response frame. This resulted in the 4-address
WDS mode not getting enabled for a STA. This could occur in particular
when operating under heavy load and the STA is reconnecting to the same
AP in a sequence where Deauthentication frame is followed immediately by
Authentication frame and the driver event processing gets delayed due to
removal of the previous netdev taking time in the middle of this
sequence.

Fix this by recording a pending item for 4-address WDS enabling if the
NL80211_CMD_UNEXPECTED_4ADDR_FRAME event would have been dropped due to
incompleted association and then process this pending item if the TX
status for the (Re)Association Response frame is received and it shows
that the frame was acknowledged.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-12-20 01:30:09 +02:00
Jouni Malinen
cb2b666670 Fix 4addr reassociation-without-deauthentication on AP
Data connection was lost if a station reassociated without the STA entry
being cleaned up on the AP side. Fix this by moving reconfiguration of
the STA WDS parameters in association response callback to happen only
after the STA flags have been updated to associated stated.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-12-02 12:51:16 +02:00
Jouni Malinen
2ab09656ae AP: Do not drop STA entry if PMF is used with full AP client state
This fixes a regression from commit
bb598c3bdd ('AP: Add support for full
station state'). That commit added code to remove and re-add the kernel
STA entry when processing Authentication frames with a driver that
advertises support for full AP client state. That resulted in bypassing
PMF protections for unprotected Authentication frames with such drivers
since the TK was lost in this operation.

It is simplest to skip the STA entry clearing in this type of case
completely to leave the TK in place and to process the new
authentication exchange otherwise normally. This matches the behavior
used with the drivers that do not implement full AP client state.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-11-29 16:26:00 +02:00
Ilan Peer
4ec1fd8e42 FT: Differentiate between FT for station and for AP in build
Previously, CONFIG_IEEE80211R enabled build that supports FT for both
station mode and AP mode. However, in most wpa_supplicant cases only
station mode FT is required and there is no need for AP mode FT.

Add support to differentiate between station mode FT and AP mode FT in
wpa_supplicant builds by adding CONFIG_IEEE80211R_AP that should be used
when AP mode FT support is required in addition to station mode FT. This
allows binary size to be reduced for builds that require only the
station side FT functionality.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2016-10-29 22:14:54 +03:00
Kevin Mahoney
a818425d1c hostapd: Added signal level to STA tracking
Add signal level information to the station tracking information. Also
make it available via the "TRACK_STA_LIST" control command.

Signed-off-by: Kevin Mahoney <k.mahoney@cablelabs.com>
2016-10-29 00:55:49 +03:00
Jouni Malinen
da24c5aa1c FILS: Set TK after association (AP)
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-10-26 00:41:04 +03:00
Jouni Malinen
07e0117d21 FILS: Mark connection fully authorized after FILS Association (AP)
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-10-26 00:20:04 +03:00
Jouni Malinen
e73ffa0925 FILS: Add Association Response frame elements and encrypt them (AP)
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-10-25 20:42:52 +03:00
Jouni Malinen
78815f3dde FILS: Decrypt Association Request elements and check Key-Auth (AP)
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-10-25 20:42:52 +03:00
Jouni Malinen
c4fd6d8aa8 FILS: Process FILS Authentication frame (AP)
This implements processing of FILS Authentication frame for FILS shared
key authentication with ERP and PMKSA caching.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-10-22 23:27:01 +03:00
Jouni Malinen
ffb62f2272 FILS: Add a helper function for status code conversion
This will allow the existing code to be reused for FILS needs.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-10-22 23:27:01 +03:00
Nishant Chaprana
746e5c2565 Fix spelling mistakes in number of comments
Signed-off-by: Nishant Chaprana <n.chaprana@samsung.com>
2016-09-30 22:45:03 +03:00
Denton Gentry
04059ab844 Passive Client Taxonomy
Implement the signature mechanism described in the paper
"Passive Taxonomy of Wifi Clients using MLME Frame Contents"
published by Denton Gentry and Avery Pennarun.

http://research.google.com/pubs/pub45429.html
https://arxiv.org/abs/1608.01725

This involves:
1. Add a CONFIG_TAXONOMY compile option. Enabling taxonomy incurs
   a memory overhead of up to several kilobytes per associated
   station.
2. If enabled, store the Probe Request and (Re)Associate Request frame in
   struct sta_info.
3. Implement code to extract the ID of each Information Element,
   plus selected fields and bitmasks from certain IEs, into a
   descriptive text string. This is done in a new source file,
   src/ap/taxonomy.c.
4. Implement a "signature qq:rr:ss:tt:uu:vv" command
   in hostapd_cli to retrieve the signature.

Signatures take the form of a text string. For example, a signature
for the Nexus 5X is:
  wifi4|probe:0,1,127,45,191,htcap:01ef,htagg:03,htmcs:0000ffff,vhtcap:338061b2,
  vhtrxmcs:030cfffa,vhttxmcs:030cfffa,extcap:00000a0201000040|assoc:0,1,48,45,
  221(0050f2,2),191,127,htcap:01ef,htagg:03,htmcs:0000ffff,vhtcap:339071b2,
  vhtrxmcs:030cfffa,vhttxmcs:030cfffa,extcap:0000000000000040

Signed-off-by: dgentry@google.com (Denton Gentry)
Signed-off-by: denny@geekhold.com (Denton Gentry)
Signed-off-by: rofrankel@google.com (Richard Frankel)
Signed-off-by: richard@frankel.tv (Richard Frankel)
2016-09-22 00:45:24 +03:00
Tamizh chelvam
fc72a48a63 hostapd: Use stations nsts capability in (Re)Association Response frame
Some deployed stations incorrectly consider nsts capability in
(Re)Association Response frame as required capability instead of maximum
capability and if it is greater than station's capability then beamform
will not happen in uplink traffic.

This commit adds support for an optional workaround to use station's
nsts capability in (Re)Association Response frame if the station's nsts
is less than AP by using the use_sta_nsts=1 configuration parameter.
This configuration is introduced in this commit and it is disabled by
default.

Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
2016-09-05 21:14:40 +03:00
Johannes Berg
81372e347a ap: Use is_multicast_ether_addr() more
Various checks should use is_multicast_ether_addr() instead
of hardcoding the equivalent, change it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-08-17 13:43:31 +03:00
Johannes Berg
842c5af5d3 ap: Use is_broadcast_ether_addr()
There's no need to have a separate variable and open-code a more
complicated version of this, just use is_broadcast_ether_addr().

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-08-06 16:51:48 +03:00
Jouni Malinen
d735811329 tests: Add TEST_FAIL() to hostapd_get_aid()
This allows additional testing coverage for AID unavailability cases.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-06-28 20:44:55 +03:00
Jouni Malinen
468b7b12a6 Fix hostapd_sta_add() call to use NULL as the pointer instead of 0
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-06-23 13:14:17 +03:00
Jouni Malinen
dad0129227 mesh: Support simple SAE group negotiation case
This allows the simplest case of SAE group negotiation to occur by
selecting the next available group if the peer STA indicates the
previous one was not supported. This is not yet sufficient to cover all
cases, e.g., when both STAs need to change their groups, but at least
some cases are no covered.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-05-30 21:14:08 +03:00
Bala Krishna Bhamidipati
a911227061 Add assocresp_elements parameter for hostapd
This new parameter allows hostapd to add Vendor Specific elements into
(Re)Association Response frames similarly to the way vendor_elements
parameter can be used for Beacon and Probe Response frames.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-04-20 13:12:50 +03:00
David Spinadel
629e1804da hostapd: Save RM enabled capability of station
Save RM enabled capability element of an associating station if radio
measurement is supported in its capability field.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
2016-04-17 12:29:12 +03:00
David Spinadel
2572df34b2 hostapd: Handle Neighbor Report Request frame
Process Neighbor Report Request frame and send Neighbor Report Response
frame based on the configured neighbor report data.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
2016-04-17 12:29:07 +03:00
David Spinadel
010182120d hostapd: Extend the configuration of RRM capabilities
Extend the radio_measurements parameter to save all the supported
RRM capabilities as it's used in RM enabled capabilities element.

Make this parameter not directly configurable via config file (though,
keep the radio_measurements parameter for some time for backwards
compatibility). Instead, add a configuration option to enable neighbor
report via radio measurements. Other features can be added later as
well.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
2016-04-16 21:05:39 +03:00
Jouni Malinen
1854eeca19 Add POLL_STA command to check connectivity in AP mode
The hostapd "POLL_STA <addr>" control interface command can be used to
check whether an associated station ACKs a QoS Data frame. The received
ACK for such a frame is reported as an event message ("AP-STA-POLL-OK
<addr>").

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-04-09 00:30:49 +03:00
Ayala Beker
ae33239c55 AP: Pass station P2P PS capabilities info during station add/set
If a legacy client with no P2P PS support is trying to connect to
a P2P GO, the driver should know that, and change its PS behavior
accordingly.

Add a parameter to hostapd_sta_add_params() indicating if P2P PS is
supported by the station and pass this parameter to kernel with nl80211
driver when the station is added/set.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
2016-04-08 13:02:49 +03:00
Masashi Honma
9f2cf23e2e mesh: Add support for PMKSA caching
This patch add functionality of mesh SAE PMKSA caching. If the local STA
already has peer's PMKSA entry in the cache, skip SAE authentication and
start AMPE with the cached value.

If the peer does not support PMKSA caching or does not have the local
STA's PMKSA entry in the cache, AMPE will fail and the PMKSA cache entry
of the peer will be removed. Then STA retries with ordinary SAE
authentication.

If the peer does not support PMKSA caching and the local STA uses
no_auto_peer=1, the local STA can not retry SAE authentication because
NEW_PEER_CANDIDATE event cannot start SAE authentication when
no_auto_peer=1. So this patch extends MESH_PEER_ADD command to use
duration(sec). Throughout the duration, the local STA can start SAE
authentication triggered by NEW_PEER_CANDIDATE even though
no_auto_peer=1.

This commit requires commit 70c93963ed
('SAE: Fix PMKID calculation for PMKSA cache'). Without that commit,
chosen PMK comparison will fail.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2016-03-20 17:56:38 +02:00
Eliad Peller
f2accfe708 AP: Save EAPOL received before Association Response ACK
There is a race condition in which AP might receive the EAPOL-Start
frame (from the just-associated station) before the TX completion of the
Association Response frame. This in turn will cause the EAPOL-Start
frame to get dropped, and potentially failing the connection.

Solve this by saving EAPOL frames from authenticated-but-not-associated
stations, and handling them during the Association Response frame TX
completion processing.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2016-03-06 17:08:12 +02:00
Jouni Malinen
adf0478e8e AP: Store STA supported operating classes information
This makes hostapd track Supported Operating Classes information from
the associated STAs. The stored information is available through the STA
control interface command (supp_op_classes row) as a hexdump of the
Supported Operating Classes element starting from the Length field. This
information can be used as input to BSS transition management and
channel switching decisions.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-02-24 12:20:31 +02:00
Dedy Lansky
077dcfb8c4 AP: Debug print management frame TX result
Inside management frame TX status callback, print the TX result where it
was missing. This is useful for debugging management frame drops.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
2016-02-22 21:51:19 +02:00
Jouni Malinen
4c572281ed MBO: Mandate use of PMF for WPA2+MBO association (AP)
If WPA2 and MBO are enabled, PMF needs to be enabled in hostapd
configuration. If PMF is optional in the configuration, an MBO STA is
required to negotiate use of PMF.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-02-22 19:53:05 +02:00
Jouni Malinen
6332aaf3b2 MBO: Track STA cellular data capability from association request
This makes hostapd parse the MBO attribute in (Re)Association Request
frame and track the cellular data capability (mbo_cell_capa=<val> in STA
control interface command).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-02-22 19:53:05 +02:00
Avraham Stern
fb9a1c3e28 hostapd: Add MBO IE to Beacon, Probe Response, Association Response
Add MBO IE with AP capability attribute to Beacon, Probe Response, and
(Re)Association Response frames to indicate the AP supports MBO.

Add option to add Association Disallowed attribute to Beacon, Probe
Response, and (Re)Association Response frames. Usage:

SET mbo_assoc_disallow <reason code>

Valid reason code values are between 1-5. Setting the reason code to
0 will remove the Association Disallowed attribute from the MBO IE
and will allow new associations.

MBO functionality is enabled by setting "mbo=1" in the config file.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2016-02-22 19:53:04 +02:00
Andrei Otcheretianski
3f81ac0762 AP: Set STA assoc flag in the driver before sending Assoc Resp frame
Previously, stations were added to the driver only after the
(Re)Association Response frame was acked. In the time period between the
station has acked the (Re)Association Response frame and the time the
station was added to the kernel, the station can already start sending
Data frames, which will be dropped by the hardware/driver. In addition
to the data loss, the driver may ignore NDPs with PM bit set from this
STA.

Fix this by setting/adding the STA with associated flag set to the
driver before the AP sends the (Re)Association Response frame with
status success. If the (Re)Association Response frame wasn't acked,
remove the station from the driver.

Note that setting a station to associated state before the non-AP
station acknowledges the (Re)Association Response frame is not compliant
with the IEEE 802.11 standard that specifically states that a non-AP
station should transition to authenticated/associated state only after
it acknowledged the (Re)Association Response frame. However, this is a
justifiable simplification to work around the issue described above since

1. The station will be removed in case it does not acknowledge the
   (Re)Association Response frame.
2. All Data frames would be dropped until the station is set to
   authorized state and there are no known issues with processing the
   other Class 3 frames during the short window before the
   acknowledgement is seen.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
2016-02-20 18:25:13 +02:00
Ayala Beker
bb598c3bdd AP: Add support for full station state
Add support for drivers that support full AP client state, i.e., can
handle adding stations that are not associated yet. For such drivers,
add a station after processing the authentication request, instead of
adding it in the association response callback.

Doing so is beneficial in cases where the driver cannot handle the add
station request, in which case it is useless to perform the complete
connection establishment.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
2016-02-20 18:25:13 +02:00
Nick Lowe
f441e5af77 Use os_get_random() for Shared Key authentication challenge
Do not use the system clock or os_random() that uses a low quality PRNG
as part of the pseudo-random challenge in auth_shared_key(). The
construction can be improved upon by replacing it with a call to
os_get_random(), which uses a high quality PRNG.

Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
2016-02-19 18:44:40 +02:00
Masashi Honma
09d96de09e mesh: Drop Authentication frames from BLOCKED STA
Previously, only mesh Action frames from BLOCKED STA were dropped.
Extend that to drop Authentication frames as well.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2016-02-18 21:27:06 +02:00
Masashi Honma
70c93963ed SAE: Fix PMKID calculation for PMKSA cache
The SAE PMKID is calculated with IEEE Std 802.11-2012 11.3.5.4, but the
PMKID was re-calculated with 11.6.1.3 and saved into PMKSA cache. Fix
this to save the PMKID calculated with 11.3.5.4 into the PMKSA cache.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2016-02-18 21:07:47 +02:00
Michael Braun
8be640b780 VLAN: Add per-STA vif option
This allows the stations to be assigned to their own vif. It does not
need dynamic_vlan to be set. Make hostapd call ap_sta_set_vlan even if
!vlan_desc.notempty, so vlan_id can be assigned regardless.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-17 11:46:13 +02:00
Michael Braun
8e44c192da radius: Add tagged VLAN parsing
1. Add tagged VLAN to struct vlan_description
    (compile limited number of tagged VLANs per description)
    For k tagged VLANs, the first k entries in vlan_description.tagged
    are used. They are sorted in ascending order. All other entries are
    zero. This way os_memcmp() can find identical configurations.
2. Let tagged VLANs be parsed from RADIUS Access-Accept
3. Print VLAN %d+ with %d=untagged VID if tagged VLANs are set
4. Select an unused vlan_id > 4096 for new tagged VLAN configurations
5. Add EGRESS_VLAN RADIUS attribute parsing also for untagged VLANs

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-17 11:46:13 +02:00
Michael Braun
1889af2e0f VLAN: Separate station grouping and uplink configuration
Separate uplink configuration (IEEE 802.1q VID) and grouping of stations
into AP_VLAN interfaces.

The int vlan_id will continue to identify the AP_VLAN interface the
station should be assigned to. Each AP_VLAN interface corresponds to an
instance of struct hostapd_vlan that is uniquely identified by int
vlan_id within an BSS.

New: Each station and struct hostapd_vlan holds a struct
vlan_description vlan_desc member that describes the uplink
configuration requested. Currently this is just an int untagged IEEE
802.1q VID, but can be extended to tagged VLANs and other settings
easily.

When the station was about to be assigned its vlan_id, vlan_desc and
vlan_id will now be set simultaneously by ap_sta_set_vlan(). So
sta->vlan_id can still be tested for whether the station needs to be
moved to an AP_VLAN interface.

To ease addition of tagged VLAN support, a member notempty is added to
struct vlan_description. Is is set to 1 if an untagged or tagged VLAN
assignment is requested and needs to be validated. The inverted form
allows os_zalloc() to initialize an empty description.

Though not depended on by the code, vlan_id assignment ensures:
  * vlan_id = 0 will continue to mean no AP_VLAN interface
  * vlan_id < 4096 will continue to mean vlan_id = untagged vlan id
    with no per_sta_vif and no extra tagged vlan.
  * vlan_id > 4096 will be used for per_sta_vif and/or tagged vlans.

This way struct wpa_group and drivers API do not need to be changed in
order to implement tagged VLANs or per_sta_vif support.

DYNAMIC_VLAN_* will refer to (struct vlan_description).notempty only,
thus grouping of the stations for per_sta_vif can be used with
DYNAMIC_VLAN_DISABLED, but not with CONFIG_NO_VLAN, as struct
hostapd_vlan is still used to manage AP_VLAN interfaces.

MAX_VLAN_ID will be checked in hostapd_vlan_valid and during setup of
VLAN interfaces and refer to IEEE 802.1q VID. VLAN_ID_WILDCARD will
continue to refer to int vlan_id.

Renaming vlan_id to vlan_desc when type changed from int to struct
vlan_description was avoided when vlan_id was also used in a way that
did not depend on its type (for example, when passed to another
function).

Output of "VLAN ID %d" continues to refer to int vlan_id, while "VLAN
%d" will refer to untagged IEEE 802.1q VID.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-17 11:46:11 +02:00
Jouni Malinen
4f6cd3f426 Fix wpa_supplicant AP mode P2P IE handling if P2P is disabled
If P2P support is included in wpa_supplicant build (CONFIG_P2P=y), but
P2P functionality is explicitly disabled (e.g., "P2P_SET disabled 1"),
couple of AP management frame processing steps did not check against
hapd->p2p_group being NULL and could end up dereferencing a NULL pointer
if a Probe Request frame or (Re)Association Request frame was received
with a P2P IE in it. Fix this by skipping these steps if hapd->p2p_group
is NULL.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-01-01 17:12:43 +02:00
Jouni Malinen
d7c3347f59 HS 2.0: Postpone WNM-Notification sending by 100 ms
This makes it somewhat easier for the station to be able to receive and
process the encrypted WNM-Notification frames that the AP previously
sentt immediately after receiving EAPOL-Key msg 4/4. While the station
is supposed to have the TK configured for receive before sending out
EAPOL-Key msg 4/4, not many actual implementations do that. As such,
there is a race condition in being able to configure the key at the
station and the AP sending out the first encrypted frame after EAPOL-Key
4/4. The extra 100 ms time here makes it more likely for the station to
have managed to configure the key in time.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-12-31 21:46:08 +02:00
Bob Copeland
681753f23c mesh: Generate proper AID for peer
IEEE Std 802.11-2012 13.3.1 states that the AID should be generated on
the local node for each peer. Previously, we were using the peer link ID
(generated by the peer) which may not be unique among all peers. Correct
this by reusing the AP AID generation code.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
2015-10-06 01:27:29 +03:00
Andrei Otcheretianski
98b0508121 P2P: Implement P2P_GO_FREQ_MOVE_SCM_ECSA policy
Add new GO frequency move policy. The P2P_GO_FREQ_MOVE_SCM_ECSA prefers
SCM if all the clients advertise eCSA support and the candidate
frequency is one of the group common frequencies.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
2015-10-03 20:30:40 +03:00
Ashok Raj Nagarajan
28ffd21c07 Do not copy STA VHT capabilities if VHT is not enabled for AP
Previously, station's VHT information elements were copied and passed
regardless of the AP's VHT configuration. As a result, AP with VHT
disabled in configuration could have ended up transmitting packets in
VHT rates though AP is not advertising VHT support. Fix this by copying
the station's VHT capabilities only when AP supports VHT (both hardware
and configuration).

Signed-off-by: Ashok Raj Nagarajan <arnagara@qti.qualcomm.com>
2015-09-23 12:09:35 +03:00
Jouni Malinen
b308a304d4 Add station tracking based on other management frame subtypes
This extends the previous tracking design to add a station entry based
on other management frames than Probe Request frames. For example, this
covers a case where the station is using passive scanning.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-09-05 19:38:06 +03:00
Jouni Malinen
0e2412d086 Add option to reject authentication on 2.4 GHz from dualband STA
The new no_auth_if_seen_on=<ifname> parameter can now be used to
configure hostapd to reject authentication from a station that was seen
on another radio.

This can be used with enabled track_sta_max_num configuration on another
interface controlled by the same hostapd process to reject
authentication attempts from a station that has been detected to be
capable of operating on another band, e.g., to try to reduce likelihood
of the station selecting a 2.4 GHz BSS when the AP operates both a 2.4
GHz and 5 GHz BSS concurrently.

Note: Enabling this can cause connectivity issues and increase latency for
connecting with the AP.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-09-05 19:11:02 +03:00
Masashi Honma
ecd40fef74 mesh: Fix mesh SAE auth on low spec devices
The mesh SAE auth often fails with master branch. By bisect I found
commit eb5fee0bf5 ('SAE: Add side-channel
protection to PWE derivation with ECC') causes this issue. This does not
mean the commit has a bug. This is just a CPU resource issue.

After the commit, sae_derive_pwe_ecc() spends 101(msec) on my PC (Intel
Atom N270 1.6GHz). But dot11RSNASAERetransPeriod is 40(msec). So
auth_sae_retransmit_timer() is always called and it can causes
continuous frame exchanges. Before the commit, it was 23(msec).

On the IEEE 802.11 spec, the default value of dot11RSNASAERetransPeriod
is defined as 40(msec). But it looks short because generally mesh
functionality will be used on low spec devices. Indeed Raspberry Pi B+
(ARM ARM1176JZF-S 700MHz) requires 287(msec) for new
sae_derive_pwe_ecc().

So this patch makes the default to 1000(msec) and makes it configurable.

This issue does not occur on infrastructure SAE because the
dot11RSNASAERetransPeriod is not used on it.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2015-08-02 21:37:10 +03:00
Jouni Malinen
7cb53ded11 Add build option to remove all internal RC4 uses
The new CONFIG_NO_RC4=y build option can be used to remove all internal
hostapd and wpa_supplicant uses of RC4. It should be noted that external
uses (e.g., within a TLS library) do not get disabled when doing this.

This removes capability of supporting WPA/TKIP, dynamic WEP keys with
IEEE 802.1X, WEP shared key authentication, and MSCHAPv2 password
changes.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-02 16:52:56 +03:00
Jouni Malinen
94edea89fd FST: Print reason for ignoring FST Action frame in debug log
This makes it easier to understand why some frames are not processed.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-25 23:20:33 +03:00
Anton Nayshtut
347827ff6e FST: Add FST IEs into AP mode management frames
This adds the FST IEs received from the FST module into Beacon, Probe
Response, and (Re)Association Response frames.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-07-16 18:26:15 +03:00
Anton Nayshtut
037378ff31 FST: Send FST Action frames to AP mode processing
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-07-16 18:26:15 +03:00
Anton Nayshtut
ae667c0827 FST: Store MB IEs from (Re)Association Request
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-07-16 18:26:15 +03:00
Jouni Malinen
6a58444d27 SAE: Verify that own/peer commit-scalar and COMMIT-ELEMENT are different
This check explicitly for reflection attack and stops authentication
immediately if that is detected instead of continuing to the following
4-way handshake that would fail due to the attacker not knowing the key
from the SAE exchange.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-06-23 23:10:36 +03:00
Jouni Malinen
fd66aa63f4 Check Public Action length explicitly before reading Action Code
In theory, the previous version could have resulted in reading one byte
beyond the end of the management frame RX buffer if the local driver
were to deliver a truncated Public Action frame for processing. In
practice, this did not seem to happen with mac80211-based drivers and
even if it were, the extra octet would be an uninitialized value in a
buffer rather than read beyond the end of the buffer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-05-03 16:33:08 +03:00
Masashi Honma
fabc6dd8c4 mesh: Retransmit the last Commit Message in the Committed state
Previously, mesh state machine transmits updated Commit Message when
receiving a Confirm Message in Committed state. According to the
standard, it should (re)send the latest Commit Message previously sent.

IEEE Std 802.11-2012, 11.3.8.6.4 Protocol instance behavior - Committed
state:
"Upon receipt of a Con event, ... If Sync is not greater than
dot11RSNASAESync, the protocol instance shall increment Sync, transmit
the last Commit Message sent to the peer, and set the t0
(retransmission) timer."

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2015-04-25 15:36:41 +03:00
Jouni Malinen
40baac0e43 Simplify VHT Capabilities element parsing
Check the element length in the parser and remove the length field from
struct ieee802_11_elems since the element is of fixed length.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-04-22 22:05:11 +03:00
Jouni Malinen
baae4cb9b4 Simplify HT Capabilities element parsing
Check the element length in the parser and remove the length field from
struct ieee802_11_elems since the element is of fixed length.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-04-22 22:05:11 +03:00
Jouni Malinen
f41ded6fa4 Remove unused leftover from multi-SSID design
The multi-SSID design that used a single beaconing BSSID with multiple
SSIDs was never completed in this repository, so there is no need to
maintain the per-STA ssid/ssid_probe pointers that could only point to
&hapd->conf->ssid. Save some memory and reduce code complexity by
removing this unused partial capability.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-04-22 11:17:32 +03:00
Michael Braun
c8e6beabb6 Remove VLAN interface on STA free
Currently, vlan_remove_dynamic() is only called when the station VLAN ID
is changed (ap_sta_bind_vlan), but not when the station is freed. So
dynamic VLAN interfaces are not removed actually except within 1x
reauthentification VLAN ID change, although most of the code is already
there.

This patch fixes this by calling vlan_remove_dynamic() in ap_free_sta().

It cannot just use sta->vlan_id for this, as this might have been
changed without calling ap_sta_bind_vlan() (ap/ieee802_11.c:handle_auth
fetches from RADIUS cache for WPA-PSK), thus reference counting might
not have been updated. Additionally, reference counting might get wrong
due to old_vlanid = 0 being passed unconditionally, thus increasing the
reference counter multiple times.

So tracking the currently assigned (i.e., dynamic_vlan counter
increased) VLAN is done in a new variable sta->vlan_id_bound. Therefore,
the old_vlan_id argument of ap_sta_bind_vlan() is no longer needed and
setting the VLAN for the sta in driver happens unconditionally.

Additionally, vlan->dynamic_vlan is only incremented when it actually
is a dynamic VLAN.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2015-04-13 17:08:10 +03:00
Yanbo Li
e7d0e97bdb hostapd: Add vendor specific VHT extension for the 2.4 GHz band
This allows vendor specific information element to be used to advertise
support for VHT on 2.4 GHz band. In practice, this is used to enable use
of 256 QAM rates (VHT-MCS 8 and 9) on 2.4 GHz band.

This functionality is disabled by default, but can be enabled with
vendor_vht=1 parameter in hostapd.conf if the driver advertises support
for VHT on either 2.4 or 5 GHz bands.

Signed-off-by: Yanbo Li <yanbol@qti.qualcomm.com>
2015-01-14 00:59:22 +02:00
Bob Copeland
f3b8ad4d78 SAE: Implement retransmission timer
Add the t0 retransmission timer as specified by IEEE Std 802.11-2012,
11.3.8.4. This makes SAE much more likely to succeed in the case of lost
frames.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
2015-01-10 17:35:52 +02:00
Bob Copeland
a206e2a175 SAE: Centralize function for sending initial COMMIT
When performing SAE authentication in mesh, one station may
initiate authentication by sending a COMMIT as soon as a peer
candidate is discovered. Previously we did this in mesh_rsn.c,
but this left some of the state initialization in a different
part of the code from the rest of the state machine, and we may
need to add other initializations here in the future, so move
that to a more central function.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
2015-01-10 11:43:29 +02:00
Jouni Malinen
3a322496f9 mesh: Delay Authentication frame process with no_auto_peer
There is a possible race condition between receiving the
NEW_PEER_CANDIDATE event and the Authentication frame from the peer.
Previously, if the Authentication frame RX event was indicated first,
that frame got dropped silently. Now, this frame is still dropped, but a
copy of it is stored and the frame gets processed on the following
NEW_PEER_CANDIDATE event if that is received for the same peer within
two seconds.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-12-23 13:44:38 +02:00
Jouni Malinen
afa2ffb413 SAE: Check Status Code in Authentication frames
While other authentication algorithms mark Status Code as being Reserved
in the case of the transaction number 1, SAE does not. Check that the
Status Code indicates success before creating SAE state. In addition,
fix the mesh anti-clogging token request parsing on big endian CPUs.

Transaction number 2 (confirm) can also have non-zero Status Code to
report an error. Those should be processed, but not replied to with yet
another error message. This could happen in mesh case. Avoid a loop of
error messages by dropping the non-success case without additional
response.

In addition, don't reply to unknown transaction numbers if the status
code is non-zero. This avoids a loop of error messages if an invalid
frame where to be injected (or unlikely corruption were to occur).

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-12-15 00:06:56 +02:00
Jouni Malinen
0629eeb490 RRM: Add AP mode minimal advertisement support for testing
The new hostapd.conf radio_measurements parameter can now be used to
configure a test build to advertise support for radio measurements with
neighbor report enabled. There is no real functionality that would
actually process the request, i.e., this only for the purpose of minimal
STA side testing for now.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-12-12 20:45:31 +02:00
Masashi Honma
a959a3b69d SAE: Fix Anti-Clogging Token request frame format
This commit inserts Finite Cyclic Group to Anti-Clogging Token request
frame because IEEE Std 802.11-2012, Table 8-29 says "Finite Cyclic Group
is present if Status is zero or 76".

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2014-11-25 16:08:53 +02:00
Masashi Honma
872b754512 mesh: Fix SAE anti-clogging functionality for mesh
The mesh anti-clogging functionality is implemented partially. This
patch fixes to parse anti-clogging request frame and use anti-clogging
token.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2014-11-25 15:33:04 +02:00
Kyeyoon Park
bd00c4311c AP: Add Neighbor Discovery snooping mechanism for Proxy ARP
This commit establishes the infrastructure, and handles the Neighbor
Solicitation and Neighbor Advertisement frames. This will be extended
in the future to handle other frames.

Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
2014-11-19 16:47:06 +02:00
Kyeyoon Park
ed4ddb6d77 AP: Extend the BSS bridge neighbor entry management to support IPv6
This allows adding/deleting an IPv6 neighbor entry to/from the bridge,
to which the BSS belongs. This commit adds the needed functionality in
driver_nl80211.c for the Linux bridge implementation. In theory, this
could be shared with multiple Linux driver interfaces, but for now, only
the main nl80211 interface is supported.

Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
2014-11-19 16:23:38 +02:00
Ilan Peer
38cb0a2db6 AP: Drop retransmitted auth/assoc/action frames
It is possible that a station device might miss an ACK for an
authentication, association, or action frame, and thus retransmit the
same frame although the frame is already being processed in the stack.
While the duplicated frame should really be dropped in the kernel or
firmware code where duplicate detection is implemented for data frames,
it is possible that pre-association cases are not fully addressed (which
is the case at least with mac80211 today) and the frame may be delivered
to upper layer stack.

In such a case, the local AP will process the retransmitted frame although
it has already handled the request, which might cause the station to get
confused and as a result disconnect from the AP, blacklist it, etc.

To avoid such a case, save the sequence control of the last processed
management frame and in case of retransmissions drop them.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2014-11-19 15:20:47 +02:00
Bob Copeland
c50d94f1f8 mesh: Start mesh peering after successful authentication
[original patch by: Thomas Pedersen <thomas@noack.us>]
Signed-off-by: Bob Copeland <me@bobcopeland.com>
2014-11-16 19:43:11 +02:00
Bob Copeland
e96da42b0e SAE: Enhance AP implementation to handle auth for mesh interfaces
Add state transition logic to the SAE frame handling in order to more
fully implement the state machine from the IEEE 802.11 standard. Special
cases are needed for infrastructure BSS case to avoid unexpected
Authentication frame sequence by postponing transmission of the second
Authentication frame untile the STA sends its Confirm.

[original patch by: Thomas Pedersen <thomas@noack.us>]
Signed-off-by: Bob Copeland <me@bobcopeland.com>
2014-11-16 19:43:11 +02:00
Kyeyoon Park
7d597d4617 AP: Add support for Proxy ARP, DHCP snooping mechanism
Proxy ARP allows the AP devices to keep track of the hardware address to
IP address mapping of the STA devices within the BSS. When a request for
such information is made (i.e., ARP request, Neighbor Solicitation), the
AP will respond on behalf of the STA device within the BSS. Such
requests could originate from a device within the BSS or also from the
bridge. In the process of the AP replying to the request (i.e., ARP
reply, Neighbor Advertisement), the AP will drop the original request
frame. The relevant STA will not even know that such information was
ever requested.

This feature is a requirement for Hotspot 2.0, and is defined in IEEE
Std 802.11-2012, 10.23.13. While the Proxy ARP support code mainly
resides in the kernel bridge code, in order to optimize the performance
and simplify kernel implementation, the DHCP snooping code was added to
the hostapd.

Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
2014-10-28 01:08:29 +02:00
Bob Copeland
f3e9899e02 mesh: Accept Action frames without BSSID match
[original patch by: Thomas Pedersen <thomas@noack.us>]
Signed-off-by: Bob Copeland <me@bobcopeland.com>
2014-10-25 17:45:35 +03:00
Jouni Malinen
f299117093 SAE: Add support for PMKSA caching on the AP side
This makes hostapd create PMKSA cache entries from SAE authentication
and allow PMKSA caching to be used with the SAE AKM.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-10-18 13:00:29 +03:00
Jouni Malinen
0233dcac5b SAE: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
34ef46ce54 WEP shared key: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
d6c6b1fb9d Make sta NULL-check easier for static analyzers
sta == NULL check is already done above based on category !=
WLAN_ACTION_PUBLIC, but that seems to be too complex for some static
analyzers, so avoid invalid reports by explicitly checking for this
again in the WLAN_ACTION_FT case.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-04-29 12:52:10 +03:00
Jouni Malinen
ee4fefc015 Remove duplicated variable zeroing
It's enough to do this once as part of the for loop.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-04-29 12:52:10 +03:00
Jouni Malinen
06df2aa60a Remove floating constant suffix 'd' from test coee
clang scan-build does not seem to like the 'd' suffix on floating
constants and ends up reporting analyzer failures. Since this suffix
does not seem to be needed, get rid of it to clear such warnings.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-04-29 12:52:10 +03:00
Peng Xu
587d60d2b7 Add AP mode support for HT 20/40 co-ex Action frame
If a 2.4 GHz band AP receives a 20/40 Coexistence management frame from
a connected station with 20/40 BSS Intolerant Channel Report element
containing the channel list in which any legacy AP are detected or AP
with 40 MHz intolerant bit set in HT Cap IE is detected in the affected
range of the BSS, the BSS will be moved from 40 to 20 MHz channel width.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2014-04-29 12:52:09 +03:00
Jouni Malinen
5bdac4abce Remove unused STA entry information
previous_ap and last_assoc_req were not really used for anything
meaninful, so get rid of them to reduce the size of per-STA memory
allocation.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-03-15 09:57:10 +02:00
Jouni Malinen
5f7e1c06cd Redirect more frames with ext_mgmt_frame_handling=1
This allows Action frames from not-associated stations to be processed
by external test tools.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-03-02 17:15:12 +02:00
Jouni Malinen
a14896e8bb HS 2.0R2 AP: Add OSEN implementation
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-02-26 01:24:24 +02:00
Chaitanya T K
3d7ad2f681 hostapd: Configure spectrum management capability
Add configuration of Spectrum Management subfield in the Capability
Information of Beacon, Probe Response, and Association Response frames.
Spectrum Management bit is set when directly requested by new
configuration option spectrum_mgmt_required=1 or when AP is running on
DFS channels. In the future, also TPC shall require this bit to be set.

Signed-hostap: Srinivasan <srinivasanb@posedge.com>
Signed-hostap: Chaitanya T K <chaitanyatk@posedge.com>
Signed-hostap: Marek Puzyniak <marek.puzyniak@tieto.com>
2014-02-25 00:54:59 +02:00
Marek Kwaczynski
8a45811638 hostapd: Add Operating Mode Notification support
Handle Operating Mode Notification received in (Re)Association Request
frames.

Signed-hostap: Marek Kwaczynski <marek.kwaczynski@tieto.com>
2014-02-14 19:30:05 +02:00
Eytan Lifshitz
93a1caece0 Remove unnecessary NULL check
In send_assoc_resp(), sta was checked for NULL, although it can't be
NULL.

Signed-hostap: Eytan Lifshitz <eytan.lifshitz@intel.com>
2014-02-13 15:58:17 +02:00
Jouni Malinen
b64afe22aa Fix SAE state validation on AP
Confirm-before-commit validation step allowed execution to continue on
error case. This could result in segfault in sae_check_confirm() if the
temporary SAE data was not available (as it would not be, e.g., in case
of an extra SAE confirm message being received after successful
exchange). Fix this by stopping SAE processing immediately after
detecting unexpected state for confirm message. In addition, make the
public sae.c functions verify sae->tmp before dereferencing it to make
this type of bugs less likely to result in critical issues.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-02-12 17:46:33 +02:00
Jouni Malinen
b37d582eaf Replace ieee802_11_print_ssid() with wpa_ssid_txt()
There is no need to maintain two different functions for printing out
ASCII text version of SSID.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-02-04 13:23:35 +02:00
Jouni Malinen
5ce00d09c0 GAS server: Add support for Protected Dual of Public Action frames
When GAS is used with PMF negotiated, Protected Dual of Public Action
frames are expected to be used instead of Public Action frames, i.e.,
the GAS/ANQP frames are expected to be encrypted. Add support for this
different category of Action frames being used for GAS. The payload
after the Category field is identical, so the only change is in using
the Category field based on what was received in the request frames. For
backwards compatibility, do not enforce protected dual to be used on the
AP side, i.e., follow what the station does.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-01-23 11:19:55 +02:00
Jouni Malinen
7b2c42f8b9 hostapd: Fix PMF robust Action frame processing rules
Due to misplaced parenthesis, unprotected not-Robust Action frames
(e.g., Public Action frames) were dropped in handle_assoc() when such
frames were received during an association that had negotiated use of
PMF. This is not correct since only unprotected Robust Action frames
were supposed to be handled in this way.

This would have broken any Public Action frame use during PMF
association, but such frames were not really supposed to be used
currently (ANQP as the only possible use case should really use
protected dual option in such case).

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2014-01-23 10:24:21 +02:00
Jouni Malinen
dbfb8e82ff Remove unnecessary EVENT_RX_ACTION
This driver event was used separately for some Action frames, but all
the driver wrappers converted to this from information that would have
been enough to indicate an EVENT_RX_MGMT event. In addition, the
received event was then converted back to a full IEEE 802.11 management
frame for processing in most cases. This is unnecessary complexity, so
get rid of the extra path and use EVENT_RX_MGMT for Action frames as
well as other management frame subtypes.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-29 17:18:17 +02:00
Jouni Malinen
912b34f000 Do not process Action frames twice in hostapd SME/MLME
Commit 88b32a99d3 added support for using
some Action frame processing in hostapd for drivers that handle most of
SME/MLME internally (it added FT, this has since be extended for SA
Query and WNM). However, this was added in a way that ended up getting
both the hostapd_rx_action() and hostapd_action_rx() called for Action
frames. This could result in an attempt to process FT, SA Query, and WNM
Action frames twice.

There is need for more significant cleanup in Action frame processing in
hostapd depending on the driver type, but as a simple step to avoid
issues, skip the hostapd_action_rx() call if hostapd_rx_action()
processed the frame.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-29 11:25:59 +02:00
Jouni Malinen
aa189ac9dd Enable FT with SAE
It was already possible to configure hostapd and wpa_supplicant to use
FT-SAE for the key management, but number of places were missing proper
AKM checks to allow FT to be used with the new AKM.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-29 10:00:31 +02:00
Jouni Malinen
aa03dbd517 Remove IEEE80211_REQUIRE_AUTH_ACK
This is not really needed for anything and the standard does not require
such validation step to be made for Authentication frame transmission.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-27 19:35:12 +02:00
Jouni Malinen
3578e665bf WNM: Add STA flag to indicate the current WNM-Sleep-Mode state
This can be useful for displaying the current STA state and also for
determining whether some operations are likely to fail or need
additional delay.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-27 19:35:12 +02:00
Jouni Malinen
93827f456a hostapd: Allow external management frame processing or testing
This enables more convenient protocol testing of station side
functionality in various error cases and unexpected sequences without
having to implement each test scenario within hostapd.
ext_mgmt_frame_handle parameter can be set to 1 to move all management
frame processing into an external program through control interface
events (MGMT-RX and MGMT-TX-STATUS) and command (MGMT_TX).

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-26 16:55:45 +02:00
Jouni Malinen
13b24a766f VHT: Use status code 104 to indicate VHT required
IEEE Std 802.11ac-2013 defines a status code for this, so use that
instead of the unspecified reason.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-24 21:19:45 +02:00
Andrei Otcheretianski
13daed58c7 Include driver.h in hostapd.h
This allows use of structs (and not only pointers) defined in drivers.h.
Remove also some not needed forward declarations and redundant includes.

Signed-hostap: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
2013-12-24 08:22:37 +02:00
Johannes Berg
fe52c210cf Use monotonic clock for last_sae_token_key_update
Just the usual, with a new function os_reltime_initialized()
thrown in that checks whether time has ever been retrieved
(time can't be completely zero).

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-07 20:50:15 -08:00
Jouni Malinen
61323e70e1 Convert perror/printf calls to wpa_printf
This makes debug and error logging more consistent and allows them to be
directed to a file more easily.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-11-02 12:58:33 +02:00
Kyeyoon Park
c551700f1f Interworking: Add support for QoS Mapping functionality for the AP
This allows QoS Map Set element to be added to (Re)Association Response
frames and in QoS Map Configure frame. The QoS Mapping parameters are
also made available for the driver interface.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-10-18 14:13:45 +03:00
Jouni Malinen
94ddef3e72 P2P: Make peer's P2P Device Address available to authenticator
This can be used to implement per-device PSK selection based on the
peer's P2P Device Address instead of P2P Interface Address.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-09-01 11:05:19 +03:00
Sujith Manoharan
69dd2967db WDS: Fix WEP usage with nl80211 wds_sta=1
The static WEP keys have to be configured for the new VLAN
interface that is created for a 4addr WDS peer, not doing so
breaks WEP functionality in nl80211/4addr based WDS links.

Signed-hostap: Sujith Manoharan <c_manoha@qca.qualcomm.com>
2013-07-20 17:41:22 +03:00
Michael Braun
80ebfd9527 VLAN: Avoid access to non-existing interfaces
Currently, hostapd_get_vlan_id_ifname() is used to determine if a given
vlan is valid *and* to actually determine the interface. This leads to
wpa_set_keys() sometimes setting the key on the wildcard interface name,
which does not make sense.

This patch therefore adds hostapd_vlan_id_valid() and makes
hostapd_get_vlan_id_ifname() not return a wildcard interface.

Signed-hostap: Michael Braun <michael-dev@fami-braun.de>
2013-06-25 12:03:02 +03:00
Ben Greear
728d97171b Use status code 17 (unable to handle new STA) on max-STA limitation
This is more useful information than the previously used value 1
(unspecified failure).

Signed-hostap: Ben Greear <greearb@candelatech.com>
2013-04-28 16:45:55 +03:00
Johannes Berg
c2aff6b1d1 hostapd: Add some testing options
In order to test clients in scenarios where APs may (randomly)
drop certain management frames, introduce some testing options
into the hostapd configuration that can make it ignore certain
frames. For now, these are probe requests, authentication and
(re)association frames.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-04-23 17:51:28 +03:00
Jouni Malinen
8dabf4bb46 GAS server: Fix a regression in GAS server callback
Commit 2d9ffe1e85 broke GAS server
callback for receiving Public Action frames. The incorrect context
pointer was used in the public_action_cb2 case. Fix this to use the
correct context pointer.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-02-16 19:15:05 +02:00
Jouni Malinen
2d9ffe1e85 P2P: Fix Action frame processing if Interworking is enabled
GAS server used the same public_action_cb mechanism as P2P to process
Action frames. This ended up overriding P2P processing of Action frames
while running an AP/GO interface with a build that enables Interworking
(e.g., for Hotspot 2.0) and a driver that uses hostapd for AP mode
SME/MLME. Fix this by adding a separate callback registration for the
GAS server. This should really be cleaned up by supporting arbitrary
number of callback handlers, but for now, this addresses the regression
with a minimal change.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-04 15:38:35 +02:00
Jouni Malinen
b4fd3613d3 SAE: Free temporary buffers when moving to Accepted state
Most of the variables are not needed anymore once the SAE instance
has entered Accepted state. Free these to save memory.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:54 +02:00
Jouni Malinen
a50414c322 SAE: Check random_get_bytes() return value
Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:53 +02:00
Jouni Malinen
625f202a74 SAE: Allow enabled groups to be configured
hostapd.conf sae_groups parameter can now be used to limit the set of
groups that the AP allows for SAE. Similarly, sae_groups parameter is
wpa_supplicant.conf can be used to set the preferred order of groups. By
default, all implemented groups are enabled.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:53 +02:00
Jouni Malinen
d136c376f2 SAE: Add support for Anti-Clogging mechanism
hostapd can now be configured to use anti-clogging mechanism based on
the new sae_anti_clogging_threshold parameter (which is
dot11RSNASAEAntiCloggingThreshold in the standard). The token is
generated using a temporary key and the peer station's MAC address.
wpa_supplicant will re-try SAE authentication with the token included if
commit message is rejected with a token request.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Jouni Malinen
dd43026a19 SAE: Rename state variables to match IEEE 802.11 standard
The enum values for struct sae_data::state now match the protocol
instance states as defined in IEEE Std 802.11-2012, 11.3.8.2.2

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Jouni Malinen
f2e9818f73 SAE: Add processing of the confirm message
This adds validation of the received confirm messages for SAE.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Jouni Malinen
fb8fcc2950 SAE: Add generation of the confirm message fields
Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Jouni Malinen
146f6c9a00 SAE: Add processing of the commit message
This adds validation of the received commit messages and key derivation
for SAE.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Jouni Malinen
8e31e9550a SAE: Add generation of the commit message fields
This adds derivation of PWE and the needed commit values so that the
full SAE commit message can be built.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Jouni Malinen
750efe6ea6 SAE: Move related operations next to each other
There is no need to keep the two SAE steps separated from each other.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Jouni Malinen
98efcc4176 SAE: Use a shared data structure for AP and station
This makes it easier to share common functions for both roles.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:52 +02:00
Johannes Berg
a9a1d0f08a hostapd: Pass VHT capabilities to driver wrapper
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-01-12 17:51:52 +02:00
Jouni Malinen
c79938a584 WNM: Enable WNM-Sleep Mode configuration with hostapd SME/MLME
This allows hostapd to process WNM-Sleep Mode Request when using the
internal SME/MLME.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-12-16 19:16:17 +02:00
Jouni Malinen
f2a14be798 Use a shared function for freeing PSK list
There is no need to duplicate this code in multiple locations.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-25 18:01:55 +02:00
Michael Braun
5ee56c4e19 Keep and use list of PSKs per station for RADIUS-based PSK
This adds support for multiple PSKs per station when using a RADIUS
authentication server to fetch the PSKs during MAC address
authentication step. This can be useful if multiple users share a
device but each user has his or her own private passphrase.

Signed-hostap: Michael Braun <michael-dev@fami-braun.de>
2012-11-25 17:57:16 +02:00
Michael Braun
2ad3e6c858 Cache a list of PSK entries for RADIUS-based PSK delivery
Signed-hostap: Michael Braun <michael-dev@fami-braun.de>
2012-11-25 17:57:16 +02:00
Johannes Berg
202d97d477 hostapd: Add VHT PHY selector if VHT is required
If VHT is required, add the VHT PHY selector to
the (extended) supported rates IE.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-11-24 17:27:16 +02:00
Jouni Malinen
f403dcd648 HS 2.0: Maintain a copy of HS 2.0 Indication from Association Request
This allows the AP to figure out whether a station is a HS 2.0 STA
during the association and access any information that the STA may have
included in this element.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-24 12:24:31 +02:00
Jouni Malinen
21af6d15a8 SAE: Add Finite Cyclic Group negotiation and Send-Confirm
This replaces the previously used bogus test data in SAE messages with
the first real field. The actual SAE authentication mechanism is still
missing and the Scaler, Element, and Confirm fields are not included.

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

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-30 19:51:07 +03:00
Felix Fietkau
9974381109 hostapd: Add check for the wds sta flag before creating 4addr VLANs
Signed-hostap: Felix Fietkau <nbd@openwrt.org>
2012-09-23 13:25:49 +03:00
Felix Fietkau
22b42372d0 hostapd: Clear WLAN_STA_ASSOC_REQ_OK if sending the assoc response failed
As long as WLAN_STA_ASSOC_REQ_OK is set in sta->flags, Class 3 frames do
not trigger a disassoc/deauth. If it is still set even after the assoc
response tx has already failed, it may take somewhat longer for clients
to realize that the connection wasn't fully established.

Signed-hostap: Felix Fietkau <nbd@openwrt.org>
2012-09-23 13:23:16 +03:00
Jouni Malinen
41fe8b42b5 Show an error message if sending of Action frame fails
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-19 18:34:16 +03:00
Jouni Malinen
3489cfb09c Use a shared helper function for merging supported rate lists
Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-19 17:52:41 +03:00
Michael Braun
2092597fee Copy User-Name/CUI from RADIUS ACL to STA entry
Signed-hostap: Michael Braun <michael-dev@fami-braun.de>
2012-08-19 14:20:10 +03:00
Christian Lamparter
f0c7a986bb AP: Fix erroneous "station tried TKIP" error
The commit b5fd8b1833
"VHT: Do not allow use of TKIP with VHT" introduced
an off-by-one regression: a WPA/RSN 11n AP would no
longer accept stations to connect, instead it would
produce a bogus error message:
... Station tried to use TKIP with HT association.

Signed-hostapd: Christian Lamparter <chunkeey@googlemail.com>
2012-08-11 10:53:03 +03:00
Mahesh Palivela
140e850a66 VHT: Add option for requiring use of VHT
Signed-hostap: Mahesh Palivela <maheshp@posedge.com>
2012-08-10 19:53:24 +03:00
Mahesh Palivela
14708b501f VHT: Add VHT elements into (Re)Association Response
Signed-hostap: Mahesh Palivela <maheshp@posedge.com>
2012-08-10 19:51:17 +03:00
Mahesh Palivela
b5fd8b1833 VHT: Do not allow use of TKIP with VHT
Signed-hostap: Mahesh Palivela <maheshp@posedge.com>
2012-08-10 19:50:37 +03:00
Mahesh Palivela
de3cdf354a VHT: Store VHT capabilities and manage VHT flag for STAs
Signed-hostap: Mahesh Palivela <maheshp@posedge.com>
2012-08-10 19:49:18 +03:00
Jouni Malinen
b6668734ab WNM: Add advertisement of BSS max idle period
If WNM is enabled for the build (CONFIG_WNM=y), add BSS max idle period
information to the (Re)Association Response frame from the AP and parse
this information on the station. For SME-in-wpa_supplicant case, add a
timer to handle periodic transmission of the keep-alive frame. The
actual request for the driver to transmit a frame is not yet
implemented.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-05-27 17:35:00 -07:00
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
Jouni Malinen
0c01d65d6d Ignore TX status for Data frames from not associated STA
Commit d9a38716cc did this for
hostapd_eapol_tx_status() but missed the older hostapd_tx_status()
path. Address that case, too.

The TX status event may be received after a station has been
disassociated in cases where the disassociation is following a
transmission of a Data frame. Ignore such events if the STA is not
associated at the moment the event is being processed. This avoids
confusing debug entries and rescheduling of the EAPOL TX timeouts for
STAs that are still in the STA table, but are not really in active EAPOL
session.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-02-14 21:04:14 +02:00
Jouni Malinen
0f3d578efc Remove the GPL notification from files contributed by Jouni Malinen
Remove the GPL notification text from the files that were
initially contributed by myself.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-11 19:39:36 +02:00
Jouni Malinen
d9a38716cc Ignore TX status for Data frames from not associated STA
The TX status event may be received after a stations has been
disassociated in cases where the disassociation is following a
transmission of a Data frame. Ignore such events if the STA is not
associated at the moment the event is being processed. This avoids
confusing debug entries and rescheduling of the EAPOL TX timeouts for
STAs that are still in the STA table, but are not really in active EAPOL
session.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-02-04 12:18:56 +02:00
Jouni Malinen
c84b868a71 Make hostapd_eid_wmm_valid() return more logical return values
Return 1/0 instead 0/-1 to indicate valid/invalid element so that
the if statement makes more sense with !wmm_valid().

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-17 12:41:00 +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
Eliad Peller
5f32f79c6e AP: Add uapsd_queues and max_sp fields
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>
2011-12-17 11:55:14 +02:00
Michael Braun
05ab9712b9 Allow WPA passphrase to be fetched with RADIUS Tunnel-Password attribute
This allows per-device PSK to be configured for WPA-Personal using a
RADIUS authentication server. This uses RADIUS-based MAC address ACL
(macaddr_acl=2), i.e., Access-Request uses the MAC address of the
station as the User-Name and User-Password. The WPA passphrase is
returned in Tunnel-Password attribute in Access-Accept. This
functionality can be enabled with the new hostapd.conf parameter,
wpa_psk_radius.

Signed-hostap: Michael Braun <michael-dev@fami-braun.de>
2011-12-11 13:01:57 +02:00
Arik Nemtsov
3eeee931dd Allow Action frames with unknown BSSID in GO mode
P2P invitation responses are transmitted with the BSSID set to the peer
address. Pass these action frames up to allow the GO to receive the
Invitation Response (and avoid sending the Invitation Request multiple
times).

Signed-off-by: Arik Nemtsov <arik@wizery.com>
2011-12-04 12:10:11 +02:00
Jouni Malinen
0bf927a03e Use wpa_key_mgmt_*() helpers
This cleans up the source code and makes it less likely that new AKM
addition misses some needed changes in the future.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-24 22:47:46 +02:00
Jouni Malinen
71093e5ea9 WPS: Include WSC IE in (Re)Association Response for maybe-WPS case
If the station is indicating use of WPS, WSC IE should be added into the
(Re)Association Response frame. This is clear for the case when WSC IE
was included in the (Re)Association Request frame. However, even the
WLAN_STA_MAYBE_WPS case may actually indicate use of WPS. Assume that to
be the case when WPA/WPA2 is enabled (i.e., when the STA does not
include WPA/RSN/WSC IE while AP has WPA/RSN enabled).

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-24 22:05:33 +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
dd840f793c AP: Add explicit EAPOL TX status event
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>
2011-11-19 13:00:30 +02:00
Jouni Malinen
ae055af4f7 Move AP events for STA connected/disconnected into one function
Instead of trying to remember to add wpa_msg() calls for every possible
path where a STA becomes authorized or unauthorized, use
ap_sta_set_authorized() to send these events more consistently.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-03 22:17:41 +02:00
Jouni Malinen
3ec1e9020f Fix some recent wpa_msg() calls in hostapd use correct context
wpa_msg() has to use hapd->msg_ctx instead of hapd as the context
pointer to work properly in wpa_supplicant AP mode.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-03 22:04:17 +02:00
Jouni Malinen
46eeedac61 Remove unused variables 2011-10-23 12:42:55 +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
06c4d2472f Move Ext Capab and Interworking element construction into shared file
These needs to be available for drivers that implement SME/MLME.
2011-10-17 21:03:52 +03:00
Mahesh Palivela
d4370eac2e Move SA Query mechanism into a file that can be shared more easily
This is the first step in allowing SA Query mechanism in hostapd to be
used with drivers that implement authentication and association MLME/SME
(i.e., do not use ieee802_11.c).
2011-10-17 17:33:17 +03:00
Jouni Malinen
b83e3e93c8 IEEE 802.11u: Add configuration and advertisement for Interworking 2011-10-16 23:55:34 +03:00
Yogesh Ashok Powar
8666585b9e Disconnect STA when it fails to get added in kernel driver/firmware
Data path for stations that get successfully associated to the
hostapd but fail to get added in the driver/firmware, will not
work. In such cases, hostapd should deauth and disconnect such
stations. In such scenario, hostapd should disconnect the STAs.

Sample output with following patch
wlan0: STA 0c:74:c2:9a:4c:59 IEEE 802.11: authenticated
wlan0: STA 0c:74:c2:9a:4c:59 IEEE 802.11: associated (aid 1)
wlan0: AP-STA-CONNECTED 0c:74:c2:9a:4c:59
wlan0: STA 0c:74:c2:9a:4c:59 IEEE 802.11: Could not add STA to kernel driver
wlan0: STA 0c:74:c2:9a:4c:59 IEEE 802.11: deauthenticated due to local deauth request

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
2011-10-15 12:41:28 +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
17f6b90056 WPS: Wait for EAPOL-Start unless WPS 2.0 station as workaround
Extend the code that waits for the station to send EAPOL-Start before
initiating EAPOL authenticator operations to cover the case where the
station includes WPS IE in (Re)Association Request frame if that IE
does not include support for WPS 2.0. While this should not really
be needed, this may help with some deployed WPS 1.0 stations that do
not support EAPOL operations correctly and may get confused of the
EAP-Request/Identity packets that would show up twice if EAPOL-Start
is transmitted.
2011-08-28 19:16:59 +03:00
Arik Nemtsov
d83ab1fe37 hostapd: Set STA flags when adding a new station
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>
2011-07-12 20:26:52 +03:00
Jouni Malinen
b8281964af Add workaround for race condition with AssocResp TX status
It may take some time for the TX status to be delivered for a
(Re)Association Response frame and if any Data frames are received
during that time, they may end up getting dropped as Class 3 frames in
not-associated state. This results in a Disassociation frame being sent
to the station and it assuming that the association has been lost.

Work around the issue by remembering that the (Re)Association Request
has already been accepted and skip the Deauth/Disassoc sending because
of the possible Class 3 frames before the TX status callback is
received.
2011-04-15 19:26:28 +03:00
Per Ekman
0b04889f0d Remove references to time_t/time()/random()
Replace direct calls in AP mode code with os_*() wrappers.
2011-04-11 18:33:48 +03:00
Ben Greear
24d75245bd AP: Update logging related to inactivity and disassociation
Add MAC addresses for stations and use wpa_msg instead of printf
methods to make it easier to grep logs and find messages for the
station in question.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2011-02-24 17:44:45 +02:00
Helmut Schaa
f39b07d7ed hostapd: Allow coexistance of HT BSSes with WEP/TKIP BSSes
In multi BSS setups it wasn't possible to set up an HT BSS in
conjunction with a WEP/TKIP BSS. HT needed to be turned off entirely
to allow WEP/TKIP BSSes to be used.

In order to allow HT BSSes to coexist with non-HT WEP/TKIP BSSes add a
new BSS conf attribute "disable_11n" which disables HT capabilities on a
single BSS by suppressing HT IEs in the beacon and probe response
frames. Furthermore, mark all STAs associated to a WEP/TKIP BSS as
non-HT STAs. The disable_11n parameter is used internally; no new entry
is parsed from hostapd.conf.

This allows a non-HT WEP/TKIP BSS to coexist with a HT BSS without
having to disable HT mode entirely. Nevertheless, all STAs associated to
the WEP/TKIP BSS will only be served as if they were non-HT STAs.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
2011-02-21 17:27:16 +02:00
Jouni Malinen
2944824315 hostapd: Add require_ht configuration parameter
This can be used to configure hostapd to reject association with
any station that does not support HT PHY.
2011-02-09 15:08:47 +02:00
Johannes Berg
6905dcb1e0 AP: Introduce sta authorized wrappers
To enable making state change notifications on the WLAN_STA_AUTHORIZED
flag, introduce ap_sta_set_authorized(), and to reduce use of the flag
itself also add a wrapper for testing the flag: ap_sta_is_authorized().

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-02-02 16:52:32 +02:00
Jouni Malinen
1161ff1ef5 hostapd: Allow TDLS use to be prohibited in the BSS
tdls_prohibit=1 and tdls_prohibit_chan_switch=1 and now be used to
disable use of TDLS or TDLS channel switching in the BSS using
extended cabilities IE as defined in IEEE 802.11z.
2011-01-28 19:21:59 +02:00
Jouni Malinen
cbcf92b42f AP: Validate management frame length
Make sure that received management frames are long enough before
processing them. This avoids a potential segmentation fault if a
driver delivers an invalid frame all the way to hostapd.
2011-01-17 12:21:29 +02:00
Jouni Malinen
1df492df34 Do not send Deauth/Disassoc to unknown STA if SA is invalid
The frame needs to be sent from an individual (non-group) address,
so drop invalid frames before sending Deauth/Disassoc frames to
not associated STAs.
2010-12-04 17:40:36 -08:00
Jouni Malinen
0e8a96a911 Get rid of struct hostapd_driver_ops abstraction
This is not needed anymore and just makes things more difficult
to understand, so move the remaining function pointers to direct
function calls and get rid of the struct hostapd_driver_ops.
2010-11-24 16:50:06 +02:00
Jouni Malinen
51e2a27a21 hostapd_driver_ops reduction
set_sta_vlan, get_inact_sec, sta_deauth, sta_disassoc, and sta_remove
to use inline functions instead of extra abstraction.
2010-11-24 15:36:02 +02:00
Jouni Malinen
cee7d66b1d hostapd: Start removing struct hostapd_driver_ops abstraction
Commit bf65bc638f started the path to
add this new abstraction for driver operations in AP mode to allow
wpa_supplicant to control AP mode operations. At that point, the
extra abstraction was needed, but it is not needed anymore since
hostapd and wpa_supplicant share the same struct wpa_driver_ops.

Start removing the unneeded abstraction by converting
send_mgmt_frame() to an inline function, hostapd_drv_send_mlme().
This is similar to the design that is used in wpa_supplicant and
that was used in hostapd in the past (hostapd_send_mgmt_frame()
inline function).
2010-11-24 15:19:50 +02:00
Felix Fietkau
7826ceae91 Fix WDS STA reassociation
If the STA entry is present in hostapd, but not in the kernel driver, its
WDS status needs to be restored when the STA reassociates
2010-11-09 16:00:09 +02:00
Jouni Malinen
3f4ce13fde P2P: Track non-P2P members in the group and set Group Limit bit
The P2P group component is now tracking of associated stations
in the group and the Group Limit bit in the Group Capabilities
is updated based on whether there is room for new clients in
the group.
2010-10-19 18:10:28 +03:00
Jouni Malinen
dce044cce5 P2P: Extend P2P manager functionality to work with driver MLME
Add P2P IE into Beacon, Probe Response, and (Re)Association Request
frames for drivers that generate this frames internally.
2010-10-08 18:16:07 +03:00
Jouni Malinen
5548ddc217 P2P: Allow P2P IE without Device Info in (Re)Assoc Req
This can happen, e.g., when a P2P client connects to a P2P group
using the infrastructure WLAN interface instead of P2P group
interface. In that case, the P2P client may behave as if the GO
would be a P2P Manager WLAN AP.
2010-09-09 07:17:21 -07:00
Jouni Malinen
962473c136 P2P: Add preliminary P2P Manager AP support for hostapd 2010-09-09 07:17:18 -07:00
Jouni Malinen
8ccbe415ba P2P: Add group notifications 2010-09-09 07:17:17 -07:00
Jouni Malinen
e44f8bf20a P2P: Add P2P configuration and callbacks in hostapd code 2010-09-09 07:17:17 -07:00
Jouni Malinen
b305c684b8 P2P: Save a copy of P2P IE(s) data from (Re)Association Request 2010-09-09 07:17:17 -07:00
Jouni Malinen
54f489be45 WPS 2.0: Validate WPS attributes in management frames and WSC messages
If CONFIG_WPS_STRICT is set, validate WPS IE(s) in management frames and
reject the frames if any of the mandatory attributes is missing or if an
included attribute uses an invalid value. In addition, verify that all
mandatory attributes are included and have valid values in the WSC
messages.
2010-09-09 06:07:48 -07:00