Commit graph

210 commits

Author SHA1 Message Date
Sunil Dutt
9f890c982a TDLS: Support both external and internal setup in disabling link
Enhance TDLS Setup Request processing to support both external and
internal TDLS setup for the case where concurrent TDLS initialization
results in the TDLS Setup Request from the peer getting accepted.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-03-28 15:05:10 +02:00
Jouni Malinen
864fe3a47c TDLS: Fix TDLS Setup Request processing in existing-peer cases
wpa_tdls_peer_free() ended up getting called after some of the
parameters from the TDLS Setup Request frame were copied into the struct
wpa_tdls_peer information. This could result in continuing with cleared
information in case the new exchange was the one that is used in
concurrent initialization case or if this is to re-negotiated an
existing TDLS link. The driver would not be provided with all the peer
capabilities correctly in such case.

Fix this by moving the existing_peer check to happen before the
information from the TDLS Setup Request frame is copied.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-03-28 12:38:24 +02:00
Jouni Malinen
1d43e28a59 TDLS: Fix TPK M2 processing in concurrent initiation case
If we accept the peer TPK M1 after having sent our TPK M1, we need to
reject TPK M2 from the peer to avoid going through two TDLS setup
exchanges.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-03-27 14:29:01 +02:00
Sunil Dutt
4561526f83 TDLS: Disable link to existing peer with lower address
If the previously started setup is terminated in case both peers
initiate TDLS link at more or less the same time, disable the old link
to allow the dummy station entry to be deleted from cfg80211 so that a
new entry can be added for the setup direction that will be allowed to
proceed.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-03-14 13:48:36 +02:00
Deepthi Gowri
6a1ce39599 FT: Add support for IEEE 802.11r with driver-based SME
Add NL80211_CMD_UPDATE_FT_IES to support update of FT IEs to the
WLAN driver. Add NL80211_CMD_FT_EVENT to send FT event from the
WLAN driver. This will carry the target AP's MAC address along
with the relevant Information Elements. This event is used to
report received FT IEs (MDIE, FTIE, RSN IE, TIE, RICIE).

Signed-off-by: Deepthi Gowri <deepthi@codeaurora.org>
2013-03-12 20:08:53 +02:00
Sunil Dutt
f8361e3d68 TDLS: Pass peer's VHT Capability information during sta_add
The information of the peer's VHT capability is required for the
driver to establish a TDLS link in VHT mode with a compatible peer.
Pass this information to the driver when the peer station is
getting added.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-25 10:31:50 +02:00
Sunil Dutt
d16531c40c TDLS: Pass peer's Capability and Ext Capability info during sta_add
The contents of the peer's capability and extended capability
information is required for the driver to perform TDLS P-UAPSD and Off
Channel operations. Pass this information to the driver when the peer
station is getting added.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-14 21:02:34 +02:00
Sunil Dutt
ff4178d57c TDLS: Pass peer's HT Capability and QOS information during sta_add
The information of the peer's HT capability and the QOS information is
required for the driver to perform TDLS operations. Pass this
information to the driver when the peer station is getting added.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-14 21:01:50 +02:00
Sunil Dutt
7b44ff2c21 TDLS: Tear down peers when disconnecting from the AP
A TDLS Teardown frame with Reason Code 3 (Deauthenticated because
sending STA is leaving (or has left) IBSS or ESS) shall be transmitted
to all TDLS peer STAs (via the AP or via the direct path) prior to
transmitting a Disassociation frame or a Deauthentication frame to the
AP.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-13 01:19:44 +02:00
Sunil Dutt
0cb12963b6 TDLS: Fix MIC calculation for teardown frame to depend on reason code
The reason code used for calculating the MIC should correspond to the
reason code with which the teardown frame is sent, as the receiver shall
use the one obtained in the frame for validating the MIC.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-05 13:36:36 +02:00
Sunil Dutt
3887878e53 TDLS: Remove link, if any, on an implicit set up request
If an implicit TDLS set up request is obtained on an existing link or an
to be established link, the previous link was not removed. This commit
disables the existing link on a new set up request. Also,
wpa_tdls_reneg() function was invoking wpa_tdls_start() on an already
existing peer for the case of internal setup, which is incorrect. Thus
the invocation of wpa_tdls_start() is removed in wpa_tdls_reneg() and
also this function is renamed to wps_tdls_remove() as it does not
renegotiation rather shall remove the link (if any) for the case of
external setup.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-05 13:27:56 +02:00
Jouni Malinen
283a26f358 TDLS: Move existing-entry check into wpa_tdls_add_peer()
There is no need to have this check copied to each caller since this
needs to be done for every case when a new peer is being added.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-05 13:16:35 +02:00
Sunil Dutt
cd22fbf85c TDLS: Use existing peer entry if available when processing discovery
Peer entries were getting added on every discover request from the peer,
thus resulting in multiple entries with the same MAC address. Ensures
that a check is done for the presence of the peer entry and reuse the
existing entry instead of adding a new one.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2013-02-05 13:10:34 +02:00
Jouni Malinen
3e72dace29 Fix compilation with PMKSA caching support disabled
Commit 6aaac006af modified the
pmksa_cache_init() prototype, but forgot to update the empty wrapper
function which is used when PMKSA caching is not included in the build.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-02-03 16:23:13 +02:00
Jouni Malinen
edbd2a191e Move cipher suite selection into common helper functions
Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-13 16:58:54 +02:00
Jouni Malinen
de61795e7c TDLS: Use merge_byte_arrays() helper
This makes implementation simpler and easier for static analyzers to
understand.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:53 +02:00
Jouni Malinen
ad3872a372 WNM: Use CONFIG_WNM more consistently
Replace CONFIG_IEEE80211V with CONFIG_WNM to get more consistent build
options for WNM-Sleep Mode operations. Previously it was possible to
define CONFIG_IEEE80211V without CONFIG_WNM which would break the build.
In addition, IEEE 802.11v has been merged into IEEE Std 802.11-2012 and
WNM is a better term to use for this new functionality anyway.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-12-16 18:22:54 +02:00
Jouni Malinen
68db9ab047 WNM: Fix GTK/IGTK parsing for WNM-Sleep Mode Response frame
These fields do not use AES keywrap. Instead, they are protected with
management frame protection (and not included if PMF is disabled).

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-12-16 12:48:34 +02:00
Dan Williams
0639970d89 PMKSA: Clear current cache entry on disassociation
Signed-hostap: Dan Williams <dcbw@redhat.com>
2012-11-25 21:53:55 +02:00
Dan Williams
6aaac006af PMKSA: Make deauthentication due to cache entry removal more granular
Expiry can always trigger a deauthentication, but otherwise,
deauthentication should only happen when the *current* cache entry is
removed and not being replaced. It should not happen when the current
PMK just happens to match the PMK of the entry being removed, since
multiple entries can have the same PMK when OKC is used and these
entries are often removed at different times.

This fixes an issue where eviction of the oldest inactive entry due to
adding a newer entry to a full cache caused a deauthentication when the
entry being removed had the same PMK as the current entry.

Signed-hostap: Dan Williams <dcbw@redhat.com>
2012-11-25 21:39:19 +02:00
Jouni Malinen
13e1d2e292 Indicate if PMF was negotiated for the connection
Add pmf=1/2 to wpa_supplicant STATUS command output to indicate that PMF
was negotiated for the connect (1 = optional in this BSS, 2 = required
in this BSS).

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-11-24 22:45:17 +02:00
Jouni Malinen
1e8a6e7553 Remove unused wpa_supplicant_disassociate()
This function is now unused after the last couple of commits that
removed the last uses, so remove this to keep code simpler since all
places that disassociate, can use deauthentication instead.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-05 17:05:37 +02:00
Jouni Malinen
3da372fae8 Use deauthentication instead of disassociation on RSN element mismatch
Even though the standard currently describes disassociation to be used
for RSN element mismatch between Beacon/Probe Response frames and
EAPOL-Key msg 3/4, this is unnecessary difference from other cases that
deauthenticate. In addition, there is no point in leaving the 802.11
Authentication in place in this case. To keep things simpler, use
deauthentication here to get rid of the only use of
wpa_sm_disassociate().

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-11-05 17:01:07 +02:00
Jouni Malinen
369c8d7bcd Reserve AKM and cipher suite values
These values are used with WAPI and CCX and reserving the definitions
here reduces the number of merge conflicts with repositories that
include these functions.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-30 20:26:55 +03:00
Jouni Malinen
c10347f246 Add initial parts for SAE
This introduces new AKM for SAE and FT-SAE and adds the initial parts
for going through the SAE Authentication frame exchange. The actual SAE
algorithm and new fields in Authentication frames are not yet included
in this commit and will be added separately. This version is able to
complete a dummy authentication with the correct authentication
algorithm and transaction values to allow cfg80211/mac80211 drivers to
be tested (all the missing parts can be handled with
hostapd/wpa_supplicant changes).

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-09-30 19:51:07 +03:00
Jouni Malinen
c3550295fb Move WPA cipher information into a shared location
Try to share most of the cipher information like key and RSC lengths and
suite selector conversions, etc. in wpa_common.c to avoid having similar
code throughout the WPA implementation for handling cipher specific
behavior.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-08-30 11:53:54 +03:00
Jouni Malinen
eb7719ff22 Add support for using GCMP cipher from IEEE 802.11ad
This allows both hostapd and wpa_supplicant to be used to derive and
configure keys for GCMP. This is quite similar to CCMP key
configuration, but a different cipher suite and somewhat different rules
are used in cipher selection. It should be noted that GCMP is not
included in default parameters at least for now, so explicit
pairwise/group configuration is needed to enable it. This may change in
the future to allow GCMP to be selected automatically in cases where
CCMP could have been used.

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

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-29 11:52:15 +03:00
Jouni Malinen
a7f10d65f4 PMKSA: Set cur_pmksa pointer during initial association
cur_pmksa was left to NULL during the initial association. This can
result in unexpected behavior, e.g., in expiring PMKSA cache entries
since the current entry is not locked in that case. Fix this by updated
cur_pmksa when adding the initial PMKSA entry during msg 1/4 processing.

Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
2012-08-10 18:05:03 +03:00
Dan Williams
0e502f97c5 PMKSA: Do not evict active cache entry when adding new ones
If the PMKSA cache is full (i.e., 32 candidates have been seen in scan
results and have not yet expired) then any additional entries can
potentially evict the current/active entry (if it is the oldest entry),
which triggers a pointless local deauthentication. The supplicant
shouldn't replace the current/active entry if it is still valid, but
instead the oldest entry that is *not* the current/active one.

Signed-hostap: Dan Williams <dcbw@redhat.com>
intended-for: hostap-1
2012-08-10 17:55:17 +03:00
Xi Chen
75cad1a0d4 WNM: Add WNM-Sleep Mode for station mode
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-08-01 13:21:27 +03:00
Subrat Dash
0e28de0d2b TDLS: Add support for TDLS frame RX with bridge interfaces
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-03-30 11:12:33 +03:00
Jouni Malinen
0f3d578efc Remove the GPL notification from files contributed by Jouni Malinen
Remove the GPL notification text from the files that were
initially contributed by myself.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-11 19:39:36 +02:00
Jouni Malinen
e22d4d957b Remove the GPL notification from files contributed by Atheros
Remove the GPL notification text from files that were initially
contributed by Atheros Communications or Qualcomm Atheros.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-11 19:39:36 +02:00
Antonio Quartulli
78debc7529 Fix pmksa_cache_get() arguments in !IEEE80211_X_EAPOL builds
In case of !defined(IEEE8021X_EAPOL) the definition of the stub
pmksa_cache_get() in rsn_supp/pmksa_cache.h is not correct. This patch
adds the missing argument to the function definition to fix a
regression from commit 96efeeb66b.

Signed-hostap: Antonio Quartulli <ordex@autistici.org>
2012-02-11 10:45:24 +02:00
Jouni Malinen
96efeeb66b Use PMKSA cache entries with only a single network context
When looking for PMKSA cache entries to use with a new association, only
accept entries created with the same network block that was used to
create the cache entry.

Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-04 12:32:35 +02:00
Jouni Malinen
d627a9395d Check wpa_supplicant_parse_ies() return value more consistently
Reject messages that fail to be parsed instead of trying to use
partially parsed information.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-04 16:40:06 +02:00
Jouni Malinen
1323ee314e Move wpa_sm_remove_pmkid() call to PMKSA cache entry freeing
This makes it clearer that the PMKSA caching entry gets removed from
the driver regardless of how the internal entry from wpa_supplicant
gets cleared. In practice, this call was skipped only for the case
when the entry for the current AP was being updated, so the previous
version was likely to work with all drivers. Anyway, it is cleaner
to explicitly remove the old entry even in that case before the new
entry gets added.

Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-20 12:53:29 +02:00
Jouni Malinen
a17539ebcd Remove unnecessary include file inclusion
Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-13 22:13:04 +02:00
Jouni Malinen
08f6ab76a5 TDLS: Do not clear peer data too early for teardown
TPK will be needed to be able to generate FTIE MIC for the
teardown message, so maintain peer data for a bit longer in
case the teardown FTIE request comes back from the driver.
2011-10-27 23:15:46 +03:00
Jouni Malinen
c581201493 TDLS: Disable link on various error cases
This is needed to be able to return back to AP path on error cases.
2011-10-27 23:13:54 +03:00
Jouni Malinen
db9af0da70 TDLS: Disable previous link to fix renegotiation 2011-10-27 23:13:14 +03:00
Jouni Malinen
da30c93ab1 TDLS: Fix concurrent initialization test code
Must not use data from peer TDLS Setup Request if the concurrent
initialization from us is supposed to be the one that gets completed.
2011-10-27 23:12:08 +03:00
Jouni Malinen
ca03378b27 TDLS: Fix teardown on renegotiation
Need to disable the link when receiving TDLS Setup Request from a
peer with which a direct link has already been set up.
2011-10-27 23:10:21 +03:00
Jouni Malinen
5c1c940f1d TDLS: Fix long frame test for teardown 2011-10-27 23:09:23 +03:00
Arik Nemtsov
ccc12d7841 TDLS: Make use of wpa_tdls_add_peer to avoid code duplication
Use the wpa_tdls_add_peer function to allocate TDLS peer structures.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:20:58 +03:00
Arik Nemtsov
2d565a61f2 TDLS: Support mgmt-frame Tx for ctrl-iface operations
Use capability information to decide whether to perform a given TDLS
operation internally or through mgmt-frame Tx.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:20:43 +03:00
Arik Nemtsov
45b722f150 TDLS: Add peer as a STA during link setup
Before commencing setup, add a new STA entry to the driver representing
the peer. Later during setup, update the STA entry using information
received from the peer.

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

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

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

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:19:35 +03:00
Arik Nemtsov
979bcccf64 TDLS: Collect peer capabilities and supp-rates during link setup
Record the capabilities and supported rates of the TDLS peer during
link setup. These are given in the IEs passed in Setup Request and
Setup Response frames.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:19:13 +03:00
Arik Nemtsov
8f15f711c5 TDLS: Implement low-ack event for lost TDLS peers
Disable the direct connection when a TDLS peer stops responding
to packets, as indicated by the "LOW ACK" event coming from a driver.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:19:08 +03:00
Arik Nemtsov
7a1486cd31 TDLS: Support sending TDLS discovery requests
Allow sending a TDLS discovery request as a frame through the driver.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:19:05 +03:00
Arik Nemtsov
7de27409a2 TDLS: Support sending a teardown frame from usermode
When a driver does not implement the TDLS_TEARDOWN operation internally,
send an explicit TDLS link teardown frame to the driver.

Change all teardown calls to use these calling semantics.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:18:49 +03:00
Arik Nemtsov
4d0d6b37f9 TDLS: Process discovery requests and send discovery responses
When a discovery request is received, add the peer to the TDLS peer
cache and send a response containing minimal data. Mandatory IEs in
the discovery response frame will be filled out by the driver.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:18:27 +03:00
Arik Nemtsov
c58ab8f249 TDLS: Get TDLS related capabilities from driver
Put glue code in place to propagate TDLS related driver capabilities to
the TDLS state machine.

If the driver doesn't support capabilities, assume TDLS is supported
internally.

When TDLS is explicitly not supported, disable all user facing TDLS
operations.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:15:15 +03:00
Arik Nemtsov
568526f1ea TDLS: Use a valid dialog-token in a setup request
A zero dialog-token is considered invalid by IEEE Std 802.11z-2010.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
2011-10-23 22:14:42 +03:00
Jouni Malinen
c3fea27274 Clear OKC-based PMKSA caching entries if PMK is changed
Whenever PMK gets changed (e.g., due to re-authentication), all PMKSA
caching entries that were created using the previous PMK needs to be
replaced. Previously, only the entry for the current AP was cleared.
Flush the other entries based on network_ctx matches to get rid of the
OKC entries. These entries can then be re-creating using OKC with the
new PMK.
2011-10-02 19:36:37 +03:00
Pavel Roskin
ffbf1eaa26 Fix typos found by codespell
Signed-off-by: Pavel Roskin <proski@gnu.org>
2011-09-22 00:43:59 +03:00
Jouni Malinen
8a55f56453 RSN: Add a debug message when considing addition of OKC entry 2011-09-16 18:45:15 +03:00
Jouni Malinen
d8a790b922 Flush PMKSA cache entries and invalidate EAP state on network changes
If a network configuration block is removed or modified, flush
all PMKSA cache entries that were created using that network
configuration. Similarly, invalidate EAP state (fast re-auth).

The special case for OKC on wpa_supplicant reconfiguration
(network_ctx pointer change) is now addressed as part of the
PMKSA cache flushing, so it does not need a separate mechanism
for clearing the network_ctx values in the PMKSA cache.
2011-09-07 17:46:00 +03:00
Jouni Malinen
734baae0af Clear driver PMKSA cache entry on PMKSA cache expiration
If the driver maintains its own copy of the PMKSA cache, we need to
clear an entry from the driver whenever wpa_supplicant is dropping
an old PMKSA cache entry.
2011-09-07 16:31:09 +03:00
Jouni Malinen
6554237f38 FT: Share IE parser implementation for Authenticator and Supplicant
These are almost identical, so there is no point in using separate
implementations.
2011-07-16 11:13:39 +03:00
Jouni Malinen
c3c828ebfd FT: Fix FT IE parser to not count TIE as protected IE 2011-07-16 11:05:28 +03:00
Hong Wu
c284b46141 FT: Fix the calculation of MIC Control field in FTIE
Reassociation Request/Response frame validation need to count all IEs in
the RIC. In addition, TIE is not protected, so it should not be included
in the count.

Signed-off-by: Hong Wu <hong.wu@dspg.com>
2011-07-16 10:57:17 +03:00
Johannes Berg
b14a210ce2 nl80211: Support GTK rekey offload
Add support to wpa_supplicant for device-based GTK rekeying. In order to
support that, pass the KEK, KCK, and replay counter to the driver, and
handle rekey events that update the latter.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-07-12 21:22:51 +03:00
Hong Wu
715ed737dc FT: Disable PMKSA cache for FT-IEEE8021X
wpa_supplicant uses XXKEY instead of PMK to derive PMK-R0 and PMK-R1 for
FT-IEEE8021X key mgmt.

Signed-off-by: Hong Wu <hong.wu@dspg.com>
2011-07-05 20:49:51 +03:00
Jouni Malinen
2a522e7192 Avoid theoretical NULL pointer dereference from debug code
The change to use wpa_dbg() in wpa_sm_parse_own_wpa_ie() could result
in a NULL pointer dereference if the function were called when WPA
state machine has not been initialized. While this cannot really
happen in practice, it is better to be prepared for that since that
was the case before the wpa_dbg() change.
2011-04-14 02:32:07 +03:00
Jouni Malinen
a04bf77209 TDLS: Validate FTIE length before processing it
This avoids reading past the end of the IE buffer should the FTIE
be too short. In addition, one debug hexdump was using uninitialized
pointer to the FTIE buffer, so fixed it to use the pointer from the
parse data.
2011-04-13 22:14:22 +03:00
Jouni Malinen
d332e7083c TDLS: Disable teardown MIC validation workaround
This MIC is required to be correct if the keys are set, so reject
the message if it does not have a valid MIC.
2011-04-07 14:48:46 +03:00
Jouni Malinen
b8f64582e3 TDLS: Allow TDLS to be disabled at runtime for testing purposes
Control interface command 'SET tdls_disabled <1/0>' can now be used
to disable/enable TDLS at runtime. This is mainly for testing
purposes.
2011-03-24 20:44:17 +02:00
Jouni Malinen
b8fb017272 TDLS: Add tdls_testing 0x400 for ignoring AP prohibit TDLS 2011-03-06 14:54:52 +02:00
Jouni Malinen
52c9e6f3f5 TDLS: Do not allow setup to be started if AP prohibits TDLS 2011-03-06 14:54:49 +02:00
Jouni Malinen
fb12d186b6 TDLS: Add tdls_testing 0x200 for declining TDLS Setup Response 2011-03-06 14:54:47 +02:00
Jouni Malinen
94377fbc52 TDLS: Allow wpa_cli tdls_setup to start renegotiation
If there is already a link the requested peer, request start of
renegotiation instead of completely new link. This seems to be needed
to allow some driver to accept the trigger for a new negotiation.
2011-03-06 14:54:44 +02:00
Jouni Malinen
ad79dba127 TDLS: Add testing mode for disabling TPK expiration
tdls_testing 0x104 can now be used to disable expiration of TPK
(0x100) and to use a short lifetime when initiating link (0x4).
2011-03-06 14:54:41 +02:00
Jouni Malinen
0c4268eb27 TDLS: Add testing code for concurrent initiation
tdls_testing 0x80 can now be used to request wpa_supplicant to send
a TDLS Setup Request frame (i.e., try to initiate TDLS setup)
whenever a TDLS Setup Request frame has been received from a peer.
2011-03-06 14:54:39 +02:00
Jouni Malinen
43291b683c TDLS: Fix higher/lower MAC address check for concurrent init
The logic here was reversed: the STA with lower MAC address is the
one that continues as the initiator.
2011-03-06 14:54:36 +02:00
Jouni Malinen
a8b2c2d657 TDLS: Tear down old link when receiving TDLS Setup Request 2011-03-06 14:54:34 +02:00
Jouni Malinen
2a469a6b56 TDLS: Add tdls_testing flag (bit 6) for testing long TPK lifetime 2011-03-06 14:54:32 +02:00
Jouni Malinen
1c0b2ad1ce TDLS: Use more thorough validation of TPK handshake 2011-03-06 14:54:29 +02:00
Jouni Malinen
f0bfbe2a6c TDLS: Replace os_memset() of all peer data with safer approach
Blindly clearing all struct wpa_tdls_peer members is a risky
operation since it could easily clear pointers to allocated
memory, etc. information that really should not be removed.
Instead of hoping that new code gets added here to restore
the important variables, reverse the approach and only clear
structure members one by one when needed.
2011-03-06 14:54:27 +02:00
Jouni Malinen
c61f3e5544 TDLS: Remove unnecessary storing of Link ID IE in peer data 2011-03-06 14:54:24 +02:00
Jouni Malinen
3f466ec9e3 TDLS: Fix terminology to match with IEEE 802.11z 2011-03-06 14:54:22 +02:00
Jouni Malinen
a4c3e4b194 TDLS: Move TPK M1 sending to a separate function
Now all there TPK handshake messages are sent in similar functions
and are easier to find from the source code.
2011-03-06 14:54:20 +02:00
Jouni Malinen
2e1d335e44 TDLS: Allow unencrypted network negotiation through wpa_supplicant
This allows the same code path to be used for both protected and
unprotected configurations to limit need for duplicated code in
both the driver and wpa_supplicant.
2011-03-06 14:54:18 +02:00
Jouni Malinen
9fe6e4b4db TDLS: Clean up and fix Key Lifetime processing
This adds code for validating that the same Key Lifetime is used
throughout TPK handshake and enables TPK lifetime expiration and
renewal/teardown. These part seem to be working, but the actual
handling of TDLS Setup Confirm and renewal are not fully
functional yet.
2011-03-06 14:54:16 +02:00
Jouni Malinen
6b192bc346 TDLS: Add new testing modes for TPK lifetime testing
tdls_testing bits:
bit 3 = use short TPK lifetime (301 seconds)
bit 4 = use wrong TPK lifetime in TDLS Setup Response
bit 5 = use wrong TPK lifetime in TDLS Setup Confirm
2011-03-06 14:54:01 +02:00
Jouni Malinen
40cf22e6ff TDLS: Clear peer entries on association/disassociation
Since the TDLS links are allowed only to STAs that are in the same
BSS with us, clear all peer data whenever the BSS may have changed.
2011-03-06 14:53:58 +02:00
Jouni Malinen
5b0e6ece54 TDLS: Add a special testing feature for changing TDLS behavior
These special test cases can be configured at run time with "wpa_cli
tdls_testing <value>" where <value> is an integer (either as a decimal
or as a hex value with 0x prefix) bitmap of special features with
following bits available at this point:
bit 0 = long frame (add dummy subelement to make FTIE very long)
bit 1 = use alternative RSN IE (different RSN capab value and no extra
replay counters)
bit 2 = send incorrect BSSID in Link Identifier of TDLS Setup Request
(e.g., 1 = long FTIE, 2 = different RSN IE, 3 = both of those)

This is disabled by default and can be enabled for the build by
adding the following line to .config:
CFLAGS += -DCONFIG_TDLS_TESTING
2011-03-06 14:53:54 +02:00
Ganesh Prasadh
281ff0aa76 TDLS: Add initial support for TDLS (IEEE Std 802.11z-2010) 2011-03-06 14:53:49 +02:00
Jouni Malinen
23ab8e863f Clear PeerKey pointer on deinit 2011-03-06 14:52:52 +02:00
Ben Greear
f049052b9e Use wpa_msg() instead of wpa_printf()
This converts number of debugging messages to use wpa_msg() in order
to allow the interface name to be shown with the messages.

A new function, wpa_dbg(), is introduced to allow
CONFIG_NO_STDOUT_DEBUG=y builds to remove the debug strings. This is
otherwise identical with wpa_msg(), but it gets compiled out if stdout
debugging is disabled.
2011-02-10 20:14:46 +02:00
Jouni Malinen
bc8318acbc WPA: Add more info for EAPOL-Key Nonce/MIC debugging 2011-01-15 16:57:08 +02:00
Jouni Malinen
0382097ef3 Use set_key addr to distinguish default and multicast keys
Previously, both NULL and ff:ff:ff:ff:ff:ff addr were used in various
places to indicate default/broadcast keys. Make this more consistent
and useful by defining NULL to mean default key (i.e., used both for
unicast and broadcast) and ff:ff:ff:ff:ff:ff to indicate broadcast
key (i.e., used only with broadcast).
2011-01-09 19:44:28 +02:00
Jouni Malinen
3642c4313a Annotate places depending on strong random numbers
This commit adds a new wrapper, random_get_bytes(), that is currently
defined to use os_get_random() as is. The places using
random_get_bytes() depend on the returned value being strong random
number, i.e., something that is infeasible for external device to
figure out. These values are used either directly as a key or as
nonces/challenges that are used as input for key derivation or
authentication.

The remaining direct uses of os_get_random() do not need as strong
random numbers to function correctly.
2010-11-24 01:05:20 +02:00
Jouni Malinen
f3b87561d7 Share WPA IE parser function for RSN authenticator/supplicant
There is no point in maintaining two almost identical versions
of this parser. Move WPA IE parser into wpa_common.c similarly
to what was already the case with RSN IE parse.
2010-11-12 21:52:14 +02:00
Jouni Malinen
4d9f9ee7e5 wlantest: Parse Key Data KDEs and store GTK and IGTK 2010-11-09 20:29:12 +02:00
Daniel Gryniewicz
6c78ae1443 Fix RSN preauth candidate list clearing to avoid segfaults
Commit c5b26e33c1 broke the processing
of the candidate list entries when an old entry was either removed or
reused. The entry needs to be removed from the list to avoid leaving
pointers to freed memory.

http://bugs.gentoo.org/show_bug.cgi?id=330085
http://w1.fi/bugz/show_bug.cgi?id=372
2010-08-14 19:01:14 +03:00
Jouni Malinen
b4a1256d36 Fix fallback from failed PMKSA caching into full EAP authentication
Commit 83935317a7 added forced
disconnection in case of 4-way handshake failures. However, it should
not have changed the case where the supplicant is requesting fallback
to full EAP authentication if the PMKID in EAPOL-Key message 1/4 is
not know. This case needs to send an EAPOL-Start frame instead of
EAPOL-Key message 2/4.

This works around a problem with APs that try to force PMKSA caching
even when the client does not include PMKID in (re)association request
frame to request it. [Bug 355]
2010-05-01 17:35:28 +03:00
Jouni Malinen
7992b07f6a Remove unnecessary SUBDIRS loops from src/*/Makefile
There are no subdirectories in any of these directories or plans
for adding ones. As such, there is no point in running the loop
that does not do anything and can cause problems with some shells.
2010-04-17 17:10:31 +03:00
Jouni Malinen
087f0254d7 FT: Fix wpa_sm_set_ft_params wrapper for non-FT build 2010-04-11 19:49:32 +03:00
Jouni Malinen
e6ecca7737 Fix wpa_sm_has_ptk() no-WPA wrapper location 2010-04-11 11:39:14 +03:00