Commit graph

806 commits

Author SHA1 Message Date
Johannes Berg
f48ffe4364 nl80211: Remove unused pending_send_action
This variable is assigned only once and never tested, so basically
unused.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-08-11 18:33:02 +03:00
Jouni Malinen
15ed5535ad nl80211: Show remain-on-channel duration in debug output 2010-08-11 18:02:19 +03:00
Jouni Malinen
26af9dcaef nl80211: Try mode changes multiple times to avoid some races
cfg80211/mac80211 seems to be unwilling to change interface mode in
some cases. Make these less likely to cause problems by trying the
changes up to 10 times with 100 msec intervals.
2010-08-11 18:01:37 +03:00
Jouni Malinen
4796272f5f nl80211: show TX status (ack) in debug log 2010-07-17 20:17:43 -07:00
Jouni Malinen
a63063b4f6 rfkill: Use rtnetlink ifup/ifdown events
Replace use of rfkill block event with rtnetlink ifdown. This makes
the design more robust since the rfkill event could have been for
another interface while the rtnetlink events are already filtered
based of ifindex. In addition, the new design handles other than
rfkill-triggered ifdown/ifup events, too. rfkill unblocked event
is still needed to try to set the interface back up. If the unblock
was for another interface, ifup will fail and the driver state is
not changed.
2010-05-31 18:52:17 +03:00
Jouni Malinen
5216938960 Fix memory leak on rfkill init error path 2010-05-25 12:06:25 +03:00
Jouni Malinen
8401a6b028 Add Linux rfkill support
Add a new wpa_supplicant state: interface disabled. This can be used
to allow wpa_supplicant to be running with the network interface even
when the driver does not actually allow any radio operations (e.g.,
due to rfkill).

Allow driver_nl80211.c and driver_wext.c to start while rfkill is in
blocked state (i.e., when ifconfig up fails) and process rfkill
events to block/unblock WLAN.
2010-05-23 10:27:32 +03:00
Jouni Malinen
37eb8da957 nl80211: Fix wpa_supplicant build 2010-04-16 14:13:27 +03:00
M. Braun
0ab7a701ab nl80211: Fix initial add_ifidx() realloc to not forget values
We need to make a copy of the old entries the first time the
if_indices buffer gets allocated.
2010-04-16 00:39:59 +03:00
M. Braun
97cfcf6482 nl80211: Add bridge interfaces to own ifindex list automatically
Whenever our own interface is added to a bridge, add that bridge
into the list of own interfaces.
2010-04-16 00:36:33 +03:00
Jouni Malinen
cd1d72c1d0 nl80211: Add more debug info on NL80211_ATTR_STA_VLAN failures 2010-04-15 23:46:49 +03:00
Jouni Malinen
0544b24248 Add BSSID and reason code (if available) to disconnect event
This adds more details into the CTRL-EVENT-DISCONNECTED event to
make it easier to figure out which network was disconnected in some
race conditions and to what could have been the reason for
disconnection. The reason code is currently only available with
the nl80211 driver wrapper.
2010-04-11 21:25:15 +03:00
Jouni Malinen
e3802622db nl80211: Define set_freq for wpa_supplicant, too 2010-04-11 20:36:16 +03:00
Jouni Malinen
814782b9fe Allow driver wrappers to indicate maximum remain-on-channel duration 2010-04-11 19:42:37 +03:00
Jouni Malinen
de12717a56 nl80211: Fix key configuration in wpa_supplicant AP mode 2010-04-11 19:35:24 +03:00
Jouni Malinen
bc19f67240 nl80211: Remove forgotten Action frame registration example 2010-04-11 19:32:07 +03:00
Jouni Malinen
f3585c8a85 Simplify driver_ops for virtual interface add/remove
There is no absolute requirement for separating address allocation
into separate functions, so simplify the driver wrapper interface
to use just if_add and if_remove instead of adding the new
alloc_interface_addr() and release_interface_addr() functions.

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

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

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

For nl80211, the bridge parameter can be used to request the AP
interface to be added to the bridge automatically (brctl may refuse to
do this before hostapd has been started to change the interface mode).
If needed, the bridge interface is also created.
2010-01-16 15:19:58 +02:00
Jouni Malinen
af47308823 Add deinit_ap driver op to help wpa_supplicant AP mode use 2010-01-16 12:20:51 +02:00
Jouni Malinen
4e5cb1a366 Add driver op for disabling 802.11b rates 2010-01-16 12:11:19 +02:00
Jouni Malinen
3adca61c9c nl80211: Fix a typo 2010-01-03 22:20:27 +02:00
Jouni Malinen
2ac9688eb8 Use common driver code for Linux hwaddr get/set 2010-01-03 22:17:08 +02:00
Jouni Malinen
34f2f814e0 Share a single Linux ioctl helper fo setting interface up/down
Number of Linux driver wrappers included this more or less identical
function, so lets add a new helper file to be able to share some more
code between the driver wrappers.
2010-01-03 22:08:26 +02:00
Jouni Malinen
abd9fafab6 Standardize on a single definition of auth_alg bitfield values 2010-01-03 21:14:40 +02:00
Jouni Malinen
d1f9c410c1 Remove src/drivers/scan_helpers.c
Most of this file was already moved into wpa_supplicant/scan.c and
we can remove the file completely by having couple of small helper
functions copied to the remaining users outside core wpa_supplicant
code.
2010-01-03 20:27:32 +02:00
Jouni Malinen
baac649094 Add drv_event_eapol_rx() helper 2010-01-03 18:35:01 +02:00
Jouni Malinen
a8e0505bf0 Use driver event, EVENT_EAPOL_RX, for EAPOL frame indication 2010-01-03 17:44:40 +02:00
Jouni Malinen
55777702cd Add driver API functionality for off-channel Action frames
This adds new commands and events for allowing off-channel Action
frame exchanges to be requested. This functionality is not yet used
and is only fully supported by driver_test.c at this point.
driver_nl80211.c has support for the remain-on-channel commands, but
the Action frame TX/RX part is still pending review for the kernel
code and as such, is not yet included here.
2010-01-03 13:57:51 +02:00
Jouni Malinen
7bfc47c34f Add driver ops for allocating interface addresses
This adds placeholder code for allowing the virtual interfaces to be
pre-allocated a MAC address before the interface type is known with
drivers that do not handle interface type changes.
2010-01-03 13:42:06 +02:00
Jouni Malinen
504e905c6e Add a driver op for enabling Probe Request reporting in station mode 2010-01-03 13:30:22 +02:00
Jouni Malinen
2a8b74163e Move struct hostapd_frame_info definition away from driver API
This is internal data structure for hostapd/AP functionality and does
not need to be defined in driver.h.
2010-01-03 12:37:02 +02:00
Jouni Malinen
0d9fc3d8bd Remove struct ieee80211_hdr dependency from EVENT_RX_FROM_UNKNOWN
It is simpler to just pass in u8* to the beginning of the header.
2010-01-03 12:17:20 +02:00
Jouni Malinen
8d923a4acf Only expire scanned BSSes based on new scan results
Get more information about scans when updating BSS table information.
This allows the missing-from-scans expiration rule to work properly
when only partial set of channels or SSIDs are being scanned.
2010-01-02 13:57:44 +02:00
Jouni Malinen
291b60682a nl80211/wext: Hardcode all auth_algs as supported
There does not seem to be a driver interface for fetching auth_algs
capability, but this may be used by some external application, so
hardcode all auth_algs as supported for now.
2010-01-01 21:41:19 +02:00
Jouni Malinen
c6e8e8e41f nl80211: Add more debug prints for mode changes and interface add/remove 2009-12-28 13:25:17 +02:00
Jouni Malinen
4832ecd754 Add an option for driver wrappers to report operational frequency 2009-12-28 13:23:13 +02:00
Jouni Malinen
719347511a Get rid of unnecessary typedefs for enums. 2009-12-26 10:35:08 +02:00
Felix Fietkau
fbbfcbac29 hostapd: Add WDS (4-address frame) mode with per-station interfaces
This mode allows associated stations to use 4-address frames to allow
layer 2 bridging to be used. At least for the time being, this is only
supported with driver=nl80211.
2009-12-24 11:46:22 +02:00
Jouni Malinen
7bf127572c nl80211: Use couple more os_*() wrappers for allocation 2009-12-21 22:32:59 +02:00
Jouni Malinen
e62fb0a0de nl80211: Use os_* allocation wrappers to avoid WPA_TRACE issues 2009-12-21 22:21:10 +02:00
Jouni Malinen
62d680c3ca netlink: Move more of the newlink/dellink parsing into shared code 2009-12-18 17:49:07 +02:00
Jouni Malinen
08063178fb nl80211/wext: Share netlink new/del link event receive code 2009-12-18 17:11:54 +02:00
Jouni Malinen
e2d02c29b5 driver_nl80211/wext: Share netlink operstate send function
As an initial step in sharing netlink helper functions among driver
wrappers, create a new file for netlink code and move operstate send
function there.
2009-12-18 16:35:33 +02:00
Jouni Malinen
3b31db5199 Fix netlink payload length calculation
nlmsghdr length needs to be removed from payload length. [Bug 341]
2009-12-18 16:14:54 +02:00
Jouni Malinen
f8b1f69561 Use generic driver events for TX status and RX reporting
Replace driver wrapper calls to hostapd_tx_status(),
hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and
hostapd_mgmt_tx_cb() with new generic driver events
EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT.

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

This does not change the actual behavior, but will provide information
that will help in debugging potential issues where cfg80211/mac80211
seems to get into a different state from wpa_supplicant. In addition,
this provides an easy location for a workaround that could be added to
clear cfg80211/mac80211 state for unknown BSSes.
2009-12-02 16:45:31 +02:00
Jouni Malinen
90973fb2fd Remove src/common from default header file path
This makes it clearer which files are including header from src/common.
Some of these cases should probably be cleaned up in the future not to
do that.

In addition, src/common/nl80211_copy.h and wireless_copy.h were moved
into src/drivers since they are only used by driver wrappers and do not
need to live in src/common.
2009-11-29 17:51:55 +02:00
Jouni Malinen
197ef6abef nl80211: Remove unneeded header file: ieee802_11_common.h
driver_nl80211.c does not use anything from this header file.
2009-11-29 13:06:44 +02:00
Jouni Malinen
fc4e2d9501 HT: Remove unneeded struct ht_cap_ie wrapper
It is simpler to just use the HT Capabilities IE payload structure
as-is.
2009-11-29 13:04:21 +02:00
Jouni Malinen
be8eb8ab3e Fix AP mode HT Capabilities IE to use A-MPDU Parameters from the driver
Instead of using hardcoded maximum A-MPDU length of 64 kB and no
restrictions on minimum MPDU Start Spacing, use the correct values
reported by the driver.
2009-11-29 12:21:26 +02:00
Jouni Malinen
8e2c104fa1 Resolve some sparse warnings
Mainly, this is including header files to get definitions for functions
which is good to verify that the parameters match. None of these are
issues that would have shown as incorrect behavior of the program.
2009-11-25 00:57:00 +02:00
Jouni Malinen
4a867032ae Remove deprecated driver_ops handlers
This gets rid of previously deprecated driver_ops handlers set_wpa,
set_drop_unencrypted, set_auth_alg, set_mode. The same functionality
can be achieved by using the init/deinit/associate handlers.
2009-11-23 20:22:38 +02:00
Jouni Malinen
642187d6bf Merge set_key and hapd_set_key driver_ops into a single function 2009-11-23 16:58:32 +02:00
Jouni Malinen
d994a9b54e Move definitions away from hostapd_defs.h
Clean up definitions to reduce need to include header files from the
hostapd directory into files under the src subdirectories.
2009-11-23 16:14:39 +02:00
Jouni Malinen
c1bb3e0a62 nl80211: Build some client functionality unconditionally
Even though this makes the hostapd version a bit larger, the code will
be easier to maintain with the reduced number of complex ifdef blacks.
2009-11-23 15:40:29 +02:00
Jouni Malinen
dbb2618300 nl80211: Remove last remaining WEXT code
Clean up driver_nl80211.c by gettign rid of the last remaining WEXT use.
This requires that a recent mac80211 version is used to get full protection
in station mode via the authorized flag (IEEE 802.1X PAE).
2009-11-23 15:30:05 +02:00
Jouni Malinen
5d67487244 Merge set_beacon driver_ops into a single one
Clean up driver interface by merging hostapd and wpa_supplicant
specific set_beacon driver_ops into a single one. In addition,
merge set_beacon_int into to the same operation.
2009-11-23 15:26:05 +02:00
Jouni Malinen
62fa124ce2 nl80211/SME: Use reassociation when roaming within the ESS 2009-11-17 19:25:05 +02:00
Felix Fietkau
6980c19127 hostapd: fix AP mode initialization for nl80211
Always bring down the wlan interface, even when not changing the
BSSID, the interface also needs to be down for changing its type
from managed to AP mode.
2009-11-11 16:47:01 +02:00
Jouni Malinen
08eb154db5 Fix MCS set field to be based on driver info
Instead of using hardcoded Rx MCS bitmask (indexes 0..15 enabled),
use the real information from the driver capabilities.
2009-11-05 12:38:47 +02:00
Jouni Malinen
0ae7b08691 Work around some gcc 4.4 strict-aliasing warnings
gcc 4.4 ends up generating strict-aliasing warnings about some very common
networking socket uses that do not really result in a real problem and
cannot be easily avoided with union-based type-punning due to struct
definitions including another struct in system header files. To avoid having
to fully disable strict-aliasing warnings, provide a mechanism to hide the
typecast from aliasing for now. A cleaner solution will hopefully be found
in the future to handle these cases.
2009-11-04 19:49:14 +02:00
Jouni Malinen
6d6f4bb87f nl80211: Work around mac80211 limitation on (re)auth when authenticated
mac80211 does not currently allow (re)authentication when we are already
authenticated. In order to work around this, force deauthentication if
nl80211 authentication command fails with EALREADY. Unfortunately, the
workaround code in driver_nl80211.c alone is not enough since the
following disconnection event would clear wpa_supplicant authentication
state. To handle this, add some code to restore authentication state
when using userspace SME.

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

The nested key attribute is using different attribute values
(NL80211_KEY_* vs. NL80211_ATTR_KEY_*), so cannot share the same routine
for these purposes..
2009-09-15 11:21:25 +03:00
Jouni Malinen
5aa9cb5cca nl80211: Share the same routine for NL80211_ATTR_KEY_CIPHER setup 2009-09-15 10:54:41 +03:00
Johannes Berg
0194fedb46 driver_nl80211: Fix MLME key settings for static WEP
Current wpa_supplicant has a bug with WEP keys, it adds a zero-length
sequence counter field to netlink which the kernel doesn't accept.

Additionally, the kernel API slightly changed to accept keys only when
connected, so we need to send it the keys after that. For that to work
with shared key authentication, we also include the default WEP TX key
in the authentication command.

To upload the keys properly _after_ associating, add a new flag
WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE indicating that the driver
needs the keys at that point and not earlier.
2009-09-15 10:48:30 +03:00
Jouni Malinen
7da2c5276d nl80211: Ignore connect/roam/disconnect events when using SME
Getting double association/disassociation events can get core code
confused, so better filter out the extra events.
2009-09-04 16:39:41 +03:00
Zhu Yi
cfaab58007 nl80211: Connect API support
If the driver does not support separate authentication and association
steps, use the connect API instead.
2009-09-03 21:31:29 +03:00
Zhu Yi
da72a1c1ae nl80211: Add connect/disconnect event processing 2009-09-03 20:39:59 +03:00
Zhu Yi
93d1140077 nl80211: Check whether the driver support separate auth/assoc commands
This is an initial step in adding support for the new connect command.
For now, we just add the capability query. The actual use of the new
command will be added separately.
2009-09-03 20:36:09 +03:00
Zhu Yi
8d6ca17813 nl80211: Use defines for cipher suite selectors 2009-09-03 20:21:18 +03:00
Witold Sowa
3a57305f10 Fix a bug with ap_rx_from_unknown_sta() recursion
ap_rx_from_unknown_sta was going into infinite recursion,
or could even crash because of corrupted pointer cast.
2009-08-26 20:18:24 +03:00
Jouni Malinen
335ce76b1c nl80211: Use two sockets to avoid mixing command replies with events
Previously, both the command replies and unsolicited events were
received from the same socket. This could cause problems if an event
message is received between a command and the response to that command.
Using two sockets avoids this issue.
2009-08-26 12:10:50 +03:00
Johannes Berg
849ef835a7 nl80211: Fix WEP key configuration
Current wpa_supplicant has a bug with WEP keys, it adds a zero-length
sequence counter field to netlink which the kernel doesn't accept.

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

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

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

Use libnl-gen now too.

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

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

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

The old drop_unencrypted code is left in for now as the final
surviving WEXT use in driver_nl80211.c. However, it can be removed
from the build by defining NO_WEXT. It may also be removed
eventually when most users are expected to be using recent enough
kernel version.
2009-05-14 21:54:47 +03:00
Jouni Malinen
7e76ee9c45 nl80211: Add support for NL80211_ATTR_STA_FLAGS2
For now, the old code using NL80211_ATTR_STA_FLAGS is left in for
backwards compatibility with older kernel versions. It may be removed
eventually when most users are expected to be running with new
enough kernel version.
2009-05-14 21:53:21 +03:00
Jouni Malinen
e572fa331c nl80211: Add MFP flag configuration for station mode
This fixes IEEE 802.11w use with driver_nl80211.c in station mode.
2009-05-12 11:55:18 +03:00
Jouni Malinen
da1fb17ca7 Add handling of SME auth/assoc timeout events
This allows wpa_supplicant to start searching for other APs (or re-try)
if the MLME times out.
2009-04-24 00:08:24 +03:00
Jouni Malinen
ad6494515e nl80211: Replace WEXT code for RTS/fragmentation threshold
nl80211 has new attributes for setting RTS and fragmentation threshold
values. Use these instead of the old WEXT ioctls.
2009-04-21 18:11:07 +03:00
Jouni Malinen
30985b8600 Remove unused set_retry() driver op 2009-04-21 18:01:43 +03:00
Jouni Malinen
a8d6ffa48f wpa_supplicant AP: Add sta_set_flags 2009-04-20 16:33:13 +03:00
Jouni Malinen
db149ac949 wpa_supplicant AP: Add EAPOL frame TX and RX
This allows WPA-Personal 4-way handshake to be completed successfully.
2009-04-20 16:27:45 +03:00
Jouni Malinen
13405f3542 nl80211: Mark state disassociated on local deauth/disassoc 2009-04-20 11:37:35 +03:00
Jouni Malinen
0f4e8b4f65 wpa_supplicant AP: add sta_add() and sta_remove() 2009-04-17 20:09:20 +03:00
Jouni Malinen
460456f832 nl80211: Add/remove monitor interface dynamically based on mode 2009-04-17 16:27:38 +03:00
Jouni Malinen
8a27af5c70 nl80211: Delete Beacon information on deinit in wpa_supplicant AP mode 2009-04-17 16:06:12 +03:00
Jouni Malinen
c811d5bc78 nl80211: Use ifndef hostapd to reduce binary size
Number of areas are not used by hostapd, so remove them from the build.
2009-04-17 15:36:06 +03:00
Jouni Malinen
6d550fbeea nl80211: Fix secondary BSS ifindex
This was broken by a cleanup patch that moved from ifname to ifindex.
2009-04-17 13:33:30 +03:00
Jouni Malinen
4b9841d34c Move more multi-BSSID processing into drv_callbacks.c
This simplifies driver wrapper operations and removes last direct
struct hostapd_data dereferences from driver_nl80211.c. In addition,
some of the TX callbacks are now fixed for secondary BSSes.
2009-04-17 13:29:29 +03:00
Jouni Malinen
412036f5f0 Provide own_addr buffer in hapd_init() parameters
This reduces number of places in driver wrapper that would need to
dereference struct hostapd_data pointer directly.
2009-04-17 11:55:51 +03:00
Jouni Malinen
731723a5bd Add own_addr as a parameter to sta_deauth() and sta_disassoc()
This fixes deauth/disassoc frames in secondary BSSes when using
multi-BSSID. In addition, it reduces need to dereference
struct hostapd_data inside driver wrappers.
2009-04-17 11:37:22 +03:00
Jouni Malinen
7af376e456 nl80211: Fix wpa_supplicant build 2009-04-17 11:23:24 +03:00
Jouni Malinen
41d931ee37 nl80211: Add helper functions for SIOC{G,S}IFHWADDR 2009-04-17 11:22:16 +03:00
Jouni Malinen
b8c4d6df5f Remove dead code related to WDS setup
hostapd does not have any code that would actually call this, so there
is no current need to try to figure out how to set up WDS links with
nl80211.
2009-04-16 19:08:58 +03:00
Jouni Malinen
bbaf083777 nl80211: Share more of init/deinit code 2009-04-16 17:16:41 +03:00
Jouni Malinen
37b7d08204 nl80211: Make it possible to build without WEXT support
NO_WEXT can be defined to disable all remaining WEXT uses from
driver_nl80211.c. This breaks some functionality, so the code is still
in use by default. Anyway, the new #ifdef blocks make it easy to search
for areas that need to be converted to nl80211.
2009-04-16 16:36:03 +03:00
Jouni Malinen
ad1e68e6b5 Clean up HT40 scan and share nl80211 scanning code
Instead of adding a new driver_ops for fetching neighbor BSS data (that
nl80211 driver interface had to scan during initialization), share the
same scan operations that wpa_supplicant is using. This gets rid of
duplicated scan code in driver_nl80211.c (and better yet, removes large
part of old WEXT code).

hostapd interface initialization is now completed in a callback, if
needed, i.e., he_features channel/hw_mode selection can use as much time
as needed. This can also help with radar detection in the future.
2009-04-16 16:22:40 +03:00
Jouni Malinen
9fff9fdcf9 nl80211: Use shared code for netlink initialization 2009-04-14 15:52:05 +03:00
Jouni Malinen
7da3abe711 nl80211: Merge handle_frame() implementations 2009-04-14 15:35:03 +03:00
Jouni Malinen
f019981aee nl82011: Use common code for setting channel 2009-04-14 15:15:33 +03:00
Jouni Malinen
c720f2cd56 nl80211: Remove inclusion of unneeded header files 2009-04-14 15:03:07 +03:00
Jouni Malinen
071f8ac4df nl80211: Fix management frame sending after driver_ops cleanup
hostapd ended up with unregistered send_mlme() in commit
9f324b61ba. Fix this by registering the
handler both for wpa_supplicant-AP and hostapd use. [Bug 310]
2009-04-14 13:12:58 +03:00
Jouni Malinen
b4fd6fab5b Share driver beacon configuration handlers 2009-04-09 23:44:39 +03:00
Jouni Malinen
92f475b4d8 Merge hostapd driver init functions into one
Use a parameter structure to pass in information that can be more easily
extended in the future. Include some of the parameters that were
previously read directly from hapd->conf in order to reduce need for
including hostapd/config.h into driver wrappers.
2009-04-09 23:28:21 +03:00
Jouni Malinen
989f52c639 Remove unneeded inclusion of hostapd header files 2009-04-09 20:53:29 +03:00
Jouni Malinen
2135f224db nl80211: Share common interface processing code 2009-04-09 20:41:21 +03:00
Jouni Malinen
072ad14cc4 nl80211: Share monitor mode filtering and reading functions 2009-04-09 20:20:21 +03:00
Jouni Malinen
e785c2ba3b Share same set_country driver op for hostapd and wpa_supplicant 2009-04-09 20:01:25 +03:00
Jouni Malinen
9f324b61ba Share management frame send driver op for hostapd and wpa_supplicant
The same implementation can be shared in most cases, so better share the
same driver_ops handler function.
2009-04-09 19:57:20 +03:00
Jouni Malinen
8342130269 Remove flags parameter from send_mgmt_frame() driver op
This was not documented properly and was not really used nor would it be
suitable to be used in generic way as it was implemented. It is better
to just remove the parameter since there does not seem to be any
reasonable use for it.
2009-04-09 19:42:19 +03:00
Jouni Malinen
5b7b85f669 nl80211: Replace hostapd WEXT events with nl80211 events
This shares the nl80211 event processing with wpa_supplicant and removes
the old WEXT code from driver_nl80211.c.
2009-04-09 17:10:22 +03:00
Jouni Malinen
35583f3fa6 nl80211: Add Michael MIC failure event processing for wpa_supplicant 2009-04-09 16:50:48 +03:00
Jouni Malinen
1ad1cdc241 nl80211: Merge hostapd and wpa_supplicant key configuration
No need to duplicate more or less identical code.
2009-04-09 16:31:11 +03:00
Francesco Gringoli
5a0ffb5f1f nl80211: Fix channel 14 use
nl80211 interface has a trivial bug that prevents it to work correctly
with channel 14. Channel frequency is erroneously 2848 instead of 2484.
To correct it just apply this patch. [Bug 308]
2009-04-09 14:51:31 +03:00
Jouni Malinen
c3965310e6 Use common get_hw_feature_data for hostapd and wpa_supplicant
This merges the driver wrapper implementations to use the same
implementation both for hostapd and wpa_supplicant operations to avoid
code duplication.
2009-04-09 14:11:39 +03:00
Jouni Malinen
c51218372f Merge wpa_supplicant and hostapd driver wrapper implementations
This commit merges the driver_ops structures and implementations from
hostapd/driver*.[ch] into src/drivers. This is only an initial step and
there is room for number of cleanups to share code between the hostapd
and wpa_supplicant parts of the wrappers to avoid unnecessary source
code duplication.
2009-04-09 13:40:12 +03:00
Jouni Malinen
a0b2f99bd7 nl80211: Fix static WEP key configuration when using SME
Need to set WEP keys before requesting authentication in order to get
Shared Key authentication working. Previously, the WEP keys were not set
at all when using SME in wpa_supplicant.
2009-04-04 16:58:16 +03:00
Jouni Malinen
282d55908b wpa_supplicant AP: Add get_hw_feature_data
This is enough to allow open mode association to be completed with
driver_nl80211.c.
2009-04-03 19:11:22 +03:00
Jouni Malinen
2c2010acda Implement management frame TX for wpa_supplicant AP mode 2009-04-03 16:45:09 +03:00
Jouni Malinen
0915d02c3c wpa_supplicant AP: Add management frame RX for nl80211 2009-04-02 21:59:14 +03:00
Jouni Malinen
d2440ba01b Add Beacon configuration for wpa_supplicant AP mode 2009-04-02 16:09:48 +03:00
Jouni Malinen
2e24a366ea nl80211: Add IGTK (AES-128-CMAC) configuration
This was somehow forgotten from IEEE 802.11w/MFP patches from
wpa_supplicant -Dnl80211.
2009-04-01 17:14:07 +03:00
Jouni Malinen
efa4607800 SME: Add processing for rejected associations 2009-04-01 17:10:36 +03:00
Jouni Malinen
d61f48ba1d nl80211: Remove forgotten comment about SIOCSIWMODE 2009-03-31 15:25:10 +03:00
Jouni Malinen
1b2a72e884 nl80211: Remove SIOCGIWRANGE and assume TKIP+CCMP+WPA+WPA2
All currently known drivers that use nl80211/cfg80211 support these, so
no need to use old WEXT ioctl for figuring out capabilities.
2009-03-31 14:25:15 +03:00
Jouni Malinen
d8816397c3 nl80211: Remove WEXT Michael MIC event processing
mac80211 does not use this type of Michael MIC event, so this is not
really used and proper Michael MIC failure processing will be added
using an nl80211 event once that gets added into wireless-testing.git.
2009-03-31 14:14:16 +03:00
Jouni Malinen
e8a029fb6d nl80211: Remove WEXT_COMPAT
It looks like both new nl80211 operations (scan and auth/assoc) end up
being added in Linux 2.6.30, so we do not need to maintain the backwards
compatibility code in wpa_supplicant.
2009-03-31 14:09:30 +03:00
Jouni Malinen
d3a9822542 Add support for specifying subset of enabled frequencies to scan
A new network block parameter, scan_freq, can be used to specify subset
of frequencies to scan. This can speed up scanning process considerably
if it is known that only a small subset of channels is actually used in
the network. A union of configured frequencies for all enabled network
blocks is used in scan requests.

Currently, only driver_nl80211.c has support for this functionality.

For example, following parameter marks 2.4 GHz channels 1, 6, 11 to be
scanned: scan_freq=2412 2437 2462
2009-03-26 21:55:01 +02:00
Jouni Malinen
1581b38b67 Initial step in adding simple AP mode support into wpa_supplicant
This version is adding the configuration option (mode=2) for this and
driver capability reporting to figure out whether AP mode can be used.
However, this does not actually implement any real functionality yet.
2009-03-25 11:38:47 +02:00
Jouni Malinen
a87c9d9609 driver_nl80211: Fix initial iftype change
Need to set drv->ifindex before calling set_mode(). In addition, set the
mode before setting the interface up to avoid having to set it down
again.

Add more useful error message on mode changes.
2009-03-24 20:50:40 +02:00
Jouni Malinen
36b15723ca Deprecate set_drop_unencrypted(), set_auth_alg(), and set_mode()
All these driver handlers can be implemented in associate() handler
which gets all the needed information in the parameters structure. The
old functions that provided only a single parameter will be removed
eventually to clean up the driver_ops structure, so driver wrappers
should start using the newer mechanism.
2009-03-24 20:06:02 +02:00
Jouni Malinen
fd05d64ecf nl80211: Make get_ssid behave like get_bssid with SME
Use a local copy of SSID instead of WEXT when using wpa_supplicant-based
SME.
2009-03-20 23:03:18 +02:00
Jouni Malinen
ed384c2c67 nl80211: Make set_bssid() WEXT_COMPAT 2009-03-20 22:59:17 +02:00
Jouni Malinen
95f02a5ddd nl80211: Make PMKSA caching candidate event WEXT_COMPAT 2009-03-20 22:57:46 +02:00
Jouni Malinen
f555b6dec1 nl80211: Mark PMKSA cache operations with WEXT_COMPAT
These are not needed with wpa_supplicant SME.
2009-03-20 22:55:24 +02:00
Jouni Malinen
af723760ba nl80211: Fix no-WEXT_COMPAT build
wpa_driver_nl80211_set_ssid() and wpa_driver_nl80211_set_freq() are only
for WEXT_COMPAT now that the user space MLME code is removed.
2009-03-20 22:44:53 +02:00
Jouni Malinen
625f587b03 nl80211: Remove user space MLME code
This design did not make it into the kernel and the new user space SME
design has removed the need for keeping the experimental code.
2009-03-20 22:31:24 +02:00
Jouni Malinen
c2a0407851 Add SME support (separate authentication and association)
This can be used, e.g., with mac80211-based Linux drivers with
nl80211. This allows over-the-air FT protocol to be used (IEEE
802.11r).

Since the nl80211 interface needed for this is very recent (added
today  into wireless-testing.git), driver_nl80211.c has backwards
compatibility code that uses WEXT for association if the kernel does
not support the new commands. This compatibility code can be
disabled by defining NO_WEXT_COMPAT. That code will also be removed
at  some point to clean up driver_nl80211.c.
2009-03-20 22:26:41 +02:00
Jouni Malinen
7c2849d2a0 Add BSS flags to scan results to indicate signal quality validity
These flags are used to mark which values (level, noise, qual) are
invalid (not available from the driver) and whether level is using dBm.
D-Bus interface will now only report the values that were available.
2009-02-18 13:40:38 +02:00
Jouni Malinen
d173df5232 nl80211: Use per-scan request WPS IE
Replace the global set probe request IEs mechanism with a new nl80211
option for specifying vendor IEs for each scan request.
2009-02-18 12:49:25 +02:00
Jouni Malinen
6a1063e008 driver_nl80211: Add support for multi-SSID scan requests 2009-02-14 21:17:46 +02:00
Jouni Malinen
362f781e1c Allow multiple driver wrappers to be specified on command line
For example, -Dnl80211,wext could be used to automatically select
between nl80211 and wext. The first driver wrapper that is able to
initialize the interface will be used.
2009-02-14 16:43:43 +02:00
Jouni Malinen
7d315b7b42 nl80211: Remove one second sleep after iface up
This workaround was needed with some drivers that used WEXT, but there
is no known nl80211-enabled driver that would need this, so lets get rid
of the extra delay.
2009-02-12 22:05:36 +02:00
Jouni Malinen
80bc75f135 New driver capability info: max number of scan SSIDs
The driver wrappers can now inform wpa_supplicant how many SSIDs can
be used in a single scan request (i.e., send multiple Probe Requests
per channel). This value is not yet used, but it can eventually be used
to allow a new scan command to specify multiple SSIDs to speed up
scan_ssid=1 operations. In addition, a warning could be printed if
scan_ssid=1 is used with a driver that does not support it
(max_scan_ssids=0).
2009-02-12 22:05:32 +02:00
Jouni Malinen
97865538ba nl80211: Replace WEXT scan event with nl80211
Use the new nl80211 scan event mechanism instead of the WEXT event.
This completes the move from WEXT scanning into nl80211 scanning.
2009-02-12 20:19:49 +02:00
Jouni Malinen
b3db1e1cd3 nl80211: Replace SIOCGIWSCAN with NL80211_CMD_GET_SCAN
This replaces the WEXT mechanism for fetching scan results with the new
nl80211 mechanism.
2009-02-12 20:19:33 +02:00
Jouni Malinen
0e75527f7e nl80211: Replace SIOCSIWSCAN with NL80211_CMD_TRIGGER_SCAN
This is the first step in replacing WEXT-based scan with the new
nl80211-based mechanism.
2009-02-12 20:19:09 +02:00
Jouni Malinen
42f1ee7d1f Fixed scan buffer increasing with WEXT
We can now handle up to 65535 byte result buffer which is the maximum
due to WEXT using 16-bit length field. Previously, this was limited to
32768 bytes in practice even through we tried with 65536 and 131072
buffers which we just truncated into 0 in the 16-bit variable.

This more or less doubles the number of BSSes we can received from scan
results.
2009-02-05 12:00:23 +02:00
Jouni Malinen
3a4606585c Implement set_probe_req_ie() for nl80211 drivers 2009-01-20 14:06:02 +02:00
Jouni Malinen
7e5ba1b916 Mark functions static if not used elsewhere and use proper prototypes 2009-01-03 20:38:42 +02:00
Luis R. Rodriguez
6d1584905c wpa_supplicant: Add support for setting of a regulatory domain
This adds support for setting of a regulatory domain to wpa_supplicant
drivers. It also adds regulatory domain setting for the nl80211 driver.
We expect an ISO / IEC 3166 alpha2 in the wpa configuration file as a
global.
2008-12-09 22:11:14 +02:00
Jouni Malinen
7e45830ab7 nl80211: Include copy of linux/nl80211.h with hostapd/wpa_supplicant
This makes it easier to build the packages and allows all new features
to be built into the binary regardless of which kernel is currently
used.
2008-12-08 11:04:13 +02:00
Jouni Malinen
8e8df25541 nl80211: Finish dumps properly (ported from iw.git) 2008-10-29 19:28:35 +02:00
Jouni Malinen
6241fcb165 nl80211: clean up netlink code
This is a port of commit cafe38cae0
from Johannes Berg <johannes@sipsolutions.net> for hostapd to
wpa_supplicant driver_nl80211.c.
2008-09-30 16:46:22 +03:00
Dan Williams
ec5f180a24 Add an optional set_mode() driver_ops handler for setting mode before keys
A bug just got reported as a result of this for mac80211 drivers.

https://bugzilla.redhat.com/show_bug.cgi?id=459399

The basic problem is that since taking the device down clears the keys
from the driver on many mac80211-based cards, and since the mode gets
set _after_ the keys have been set in the driver, the keys get cleared
on a mode switch and the resulting association is wrong.  The report is
about ad-hoc mode specifically, but this could happen when switching
from adhoc back to managed mode.
2008-09-29 16:45:49 +03:00
Jouni Malinen
fd630bc183 Fixed WEXT scan result parser to not crash on invalid IEs (zero len buffer)
If IWEVGENIE or custom event wpa_ie/rsn_ie is received in scan with empty
buffer, the previous version ended up calling realloc(NULL, 0) which seems
to return a non-NULL value in some cases. When this return value is passed
again into realloc with realloc(ptr, 0), the returned value could be NULL.
If the ptr is then freed (os_free(data.ie) in SIOCGIWAP handling), glibc
may crash due to invalid pointer being freed (or double-freed?). The
non-NULL realloc(NULL, 0) return value from glibc looks a bit odd behavior,
but anyway, better avoid this case completely and just skip the IE events
that have an empty buffer.

This issue should not show up with drivers that produce proper scan results
since the IEs will always include the two-octet header. However, it seems
to be possible to see this when using 64-bit kernel and 32-bit userspace
with incorrect compat-ioctl processing.
2008-08-27 09:52:16 +03:00
Jouni Malinen
3c83f19c80 Added mlme_{add,remove}_sta() for userspace MLME
These functions are based on the hostapd implementation and complete
the userspace MLME code in wpa_supplicant (though, mac80211 will still need
couple of pending patches to be integrated in order to get userspace client
MLME working again).
2008-08-18 22:01:04 +03:00
Jouni Malinen
1c8735848d nl80211: Preliminary code for usermode MLME support
This adds some parts needed to use usermode MLME with the current mac80211
(plus a patch to add a new cfg80211 command; not yet submitted to
wireless-testing). This version creates a monitor interface for management
frames and is able to send Probe Request frames during scan. However, it
looks like management frame reception is not yet working properly. In
addition, mlme_{add,remove}_sta() handlers are still missing.
2008-08-15 22:14:49 +03:00
Jouni Malinen
7524cfb1a3 nl80211: Fixed re-initialization of removed and re-inserted interface
Network device ifindex will change when the interface is re-inserted.
driver_nl80211.c will need to accept netlink events from "unknown" (based
on ifindex) interfaces when a previously used card was removed earlier. If
the previously removed interface is added back, the driver_wext data need
to be updated to match with the new ifindex value. In addition, the initial
setup tasks for the card (set interface up, update ifindex, set mode, etc.)
from wpa_driver_nl80211_init() need to be run again.

This is the changes from commit 3fbda8f943
(driver_wext.c) ported for driver_nl80211.c.
2008-08-15 17:55:16 +03:00
Jouni Malinen
0a4e6cbf88 nl80211: Fixed set_mode() to actually use adhoc/station nl80211 variables 2008-08-15 17:52:37 +03:00
Dan Williams
93ef879f0f wext: fix maxrate calculation
When scan results got moved from wpa_scan_result -> wpa_scan_res, the
'maxrate' member was dropped from wpa_scan_res.  The D-Bus interface
used 'maxrate', which was replaced with wpa_scan_get_max_rate().
Unfortunately, wpa_scan_get_max_rate() returns 802.11 rate values
directly from the IE, where 'maxrate' was the rate in bits/second.  The
supplicant internally fakes an IE for wpa_scan_res from the value of
wpa_scan_result->maxrate, but interprets ->maxrate as an 802.11 rate
index.

As a side-effect, this fixes a soft-break of the D-Bus control API since
the wpa_scan_res change was introduced.
2008-07-15 20:07:50 +03:00
Jouni Malinen
3f5285e852 Added a preliminary nl80211/cfg80211 driver interface for wpa_supplicant
driver_nl80211.c is based on driver_wext.c and it is still using Linux
wireless extensions for many functions. Over time, the new driver interface
code should be modified to use nl80211/cfg80211 for everything.
2008-06-06 16:55:42 +03:00