Commit graph

1402 commits

Author SHA1 Message Date
Kanchanapally, Vidyullatha
cc9a2575ca nl80211: Use extended capabilities per interface type
This adds the necessary changes to support extraction and use of the
extended capabilities specified per interface type (a recent
cfg80211/nl80211 extension). If that information is available,
per-interface values will be used to override the global per-radio
value.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-05-31 21:35:54 +03:00
Jouni Malinen
c6edea0df6 Sync with mac80211-next.git include/uapi/linux/nl80211.h
This brings in nl80211 definitions as of 2016-05-31.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-05-31 18:49:05 +03:00
Jouni Malinen
9a5160f5fb Report connection timeouts in CTRL-EVENT-ASSOC-REJECT
Add a new "timeout" argument to the event message if the nl80211 message
indicates that the connection failure is not due to an explicit AP
rejection message. This makes it easier for external programs to figure
out why the connection failed.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-05-31 00:11:42 +03:00
Jouni Malinen
9ce3e61091 nl80211: Add TEST_FAIL() to nl80211_set_mac_addr()
This makes it easier to test some error paths in wpa_supplicant.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-05-22 18:08:55 +03:00
Kanchanapally, Vidyullatha
4d916ed6c5 nl80211: Register for only for specific Action frames in AP mode
This makes changes such that hostapd (and wpa_supplicant AP mode)
registers to kernel for specific Action frames instead of generically
registering for all Action frames. This makes it easier for other
programs to register for some Action frames that hostapd does not handle
today without having to somehow coordinate directly with hostapd.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-05-21 00:07:42 +03:00
Johannes Berg
d58b60da87 drivers: Add NEED_RADIOTAP
If there's ever a driver that, like nl80211, requires radiotap,
we need to have a NEED_RADIOTAP variable to avoid trying to link
the radiotap helpers twice. Introduce that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2016-05-13 18:29:01 +03:00
Rafał Miłecki
f4830bed66 nl80211: Try running without mgmt frame subscription (driver AP SME)
One of supported code paths already allows this scenario. It is used if
driver doesn't report NL80211_ATTR_DEVICE_AP_SME and doesn't support
monitor interface. In such situation:
1) We don't quit if subscribing for WLAN_FC_STYPE_PROBE_REQ fails
2) We don't try subscribing for WLAN_FC_STYPE_ACTION
3) We fallback to AP SME mode after failing to create monitor interface
4) We don't quit if subscribing for WLAN_FC_STYPE_PROBE_REQ fails
Above scenario is used, e.g., with brcmfmac. As you can see - thanks to
events provided by cfg80211 - it's not really required to receive Probe
Request or action frames.

However, the previous implementation did not allow using hostapd with
drivers that:
1) Report NL80211_ATTR_DEVICE_AP_SME
2) Don't support subscribing for PROBE_REQ and/or ACTION frames
In case of using such a driver hostapd will cancel setup after failing
to subscribe for WLAN_FC_STYPE_ACTION. I noticed it after setting flag
WIPHY_FLAG_HAVE_AP_SME in brcmfmac driver for my experiments.

This patch allows working with such drivers with just a small warning
printed as debug message.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2016-04-28 20:47:12 +03:00
Jouni Malinen
bd86ea0808 nl80211: Get rid of unused assignment warning
The os_snprintf() call here cannot really fail in practice, but since
its result was stored into the local variable and not checked, static
analyzers could warn about the unused assignment. Clean this up by
checking the return value.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-04-17 18:43:30 +03:00
Roy Marples
18ae3a675c bsd: Set level correctly for non FreeBSD systems
Only FreeBSD treats rssi as dBm, other BSD have no special meaning to
rssi.

Signed-off-by: Roy Marples <roy@marples.name>
2016-04-17 18:34:22 +03:00
Beni Lev
b5d172e578 nl80211: Add support for global RRM flag
Set the global RRM flag if global RRM is supported by the device. Also,
allow RRM in (Re)Association Request frame if the global RRM flag is
set.

Signed-off-by: Beni Lev <beni.lev@intel.com>
2016-04-17 12:41:44 +03:00
Beni Lev
a7f0bb7000 driver: Add global RRM support flag
This flag indicates that RRM can be used in (Re)Association Request
frames, without supporting quiet period.

Signed-off-by: Beni Lev <beni.lev@intel.com>
2016-04-17 12:37:08 +03:00
David Spinadel
864b95225c nl80211: Register to receive Radio Measurement Request frames
Register to receive Radio Measurement Request frames since LCI request
is supported by wpa_supplicant.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
2016-04-17 12:32:14 +03:00
Ilan Peer
6922d440de nl80211: Implement configure_data_frame_filters() callback
Implement configure_data_frame_filters() callback by using
the net-sysfs interfaces (if these are available).

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2016-04-08 15:21:18 +03:00
Matti Gottlieb
e42adb9a75 driver: Add a packet filtering function declaration
Add a new function declaration that will allow wpa_supplicant to request
the driver to configure data frame filters for specific cases.

Add definitions that will allow frame filtering for stations as
required by Hotspot 2.0:

1. Gratuitous ARP
2. Unsolicited NA
3. Unicast IP packets encrypted with GTK

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
2016-04-08 13:13:55 +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
Jouni Malinen
7405bb06ca Sync with mac80211-next.git include/uapi/linux/nl80211.h
This brings in nl80211 definitions as of 2016-04-06.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-04-08 13:02:49 +03:00
Jouni Malinen
094e949265 atheros: Do not use struct ieee80211_mgmt::u.probe_req
This struct in the union is empty, but the design of using a zero-length
u8 array here is not fully compatible with C++ and can result in
undesired compiler warnings. Since there are no non-IE fields in the
Probe Request frames, get the location of the variable length IEs simply
by using the pointer to the frame header and the known header length.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-04-02 16:55:02 +03:00
Jouni Malinen
87faf1f22c nl80211: Fix libnl-tiny build with CONFIG_LIBNL20=y
libnl-tiny does not use the separate nl-genl library.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-03-26 12:02:34 +02:00
Jouni Malinen
1126c0787d nl80211: Ignore deauth/disassoc event during Connect reassociation
cfg80211 reports a deauth/disassoc event when internally clearing
connection with the previous BSS. Ignore that event to allow the new
connect command to complete.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-24 22:35:10 +02:00
Jouni Malinen
00c3c4ac9b nl80211: Add NL80211_ATTR_PREV_BSSID with Connect command
This makes it easier for drivers that use the Connect command instead of
separate Auth+Assoc commands to determine when to use reassociation
instead of association. Matching changes are still needed in cfg80211 to
allow this parameter to be used, but it is safe for wpa_supplicant to
start including this attribute now since it will be ignored by older
cfg80211 versions.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-24 22:35:10 +02:00
Jouni Malinen
32d4fe9549 privsep: Fix a compiler warning on unsigned/signed comparison
Signed-off-by: Jouni Malinen <j@w1.fi>
2016-03-22 17:41:37 +02:00
Roy Marples
45e3fc72c6 Find correct driver for interface additions/removals
Interface additions/removals are not guaranteed to be for the driver
listening to the kernel events. As such, send the events to
wpa_supplicant_event_global() which can then pick the correct interface
registered with wpa_supplicant to send the event to.

Signed-off-by: Roy Marples <roy@marples.name>
2016-03-22 17:41:37 +02:00
Roy Marples
7f46ad9ee5 BSD: Only down the interface once we are sure we can work with it
Signed-off-by: Roy Marples <roy@marples.name>
2016-03-20 11:24:30 +02:00
Jouni Malinen
29eddc3d8c nl80211: Fix error path in if_indices_reason reallocation
Commit 732b1d20ec ('nl80211: Clean up
ifidx properly if interface in a bridge is removed') added
drv->if_indices_reason array similarly to the previously used
drv->if_indices. However, it had a copy-paste error here on the error
path where a reallocation failure after at least one successful
reallocation would result in the drv->if_indices being overridden
instead of restoring drv->if_indices_reason to the old value. Fix this
by setting the correct variable on the error path. (CID 138514)

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-03-18 16:25:35 +02:00
Jouni Malinen
ee298f1b1f nl80211: Do not add NL80211_ATTR_SMPS_MODE attribute if HT is disabled
SMPS mode is applicable only for HT and including an attribute to
configure it when HT is disabled could result in the AP start operation
failing. Fix this by adding the attribute only in cases where HT is
enabled.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-18 16:16:40 +02:00
Dedy Lansky
f2d6c17aa0 nl80211: Support network hierarchy of a master interface under bridge
Since commit cb05808c46 ('nl80211: Generic
Linux master interface support for hostapd'), hostapd is listening for
EAPOL frames on any master which the interface is enslaved under.

This commit allows hostapd to support network hierarchy in which the
interface is enslaved under some master which in turn is enslaved under
a bridge.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
2016-03-09 21:03:41 +02:00
Ayala Beker
7441698fcf nl80211: Abort an ongoing scan upon scan timeout indication
Currently, when scan is stuck in the kernel/driver/fw,
the nl80211 driver tries to recover by faking a SCAN_RESULTS flow.
However, the scan is still stuck in the kernel/driver/fw.

To avoid that stuck request, abort it upon scan timeout.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
2016-03-03 17:10:26 +02:00
Jouni Malinen
b9ca12a911 nl80211: Add more address fields into RX frame debug message
This makes it easier to debug issues related to Public Action frame
addressing.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-02-29 21:18:27 +02:00
Michael Braun
732b1d20ec nl80211: Clean up ifidx properly if interface in a bridge is removed
When an interface is removed while it was in a bridge, the bridge was
not removed from the local ifidx list.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-28 19:42:40 +02:00
Jouni Malinen
eb20cea590 nl80211: Add an option to specify the BSSID to scan for
This allows scans to be optimized when a response is needed only from a
single, known BSS.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-02-26 17:19:20 +02:00
Jouni Malinen
a15995819a ndis: Use the new get_ie() helper to avoid duplicated code
This removes more duplicated implementation of finding the first IE
based on the id.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-02-21 17:32:47 +02:00
Avraham Stern
231b04b6cb utils: Share a single helper function to get IE by ID
Add a helper function to find a certain IE inside IEs buffer by ID and
use this function in several places that implemented similar
functionality locally.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2016-02-21 17:14:56 +02:00
Nick Lowe
43022abdb9 Use 64-bit TX/RX byte counters for statistics
If the driver supports 64-bit TX/RX byte counters, use them directly.
The old 32-bit counter extension is maintained for backwards
compatibility with older drivers.

For nl80211 driver interface, the newer NL80211_STA_INFO_RX_BYTES64 and
NL80211_STA_INFO_TX_BYTES64 attributes are used when available. This
resolves the race vulnerable 32-bit value wrap/overflow. Rework RADIUS
accounting to use these for Acct-Input-Octets, Acct-Input-Gigawords,
Acct-Output-Octets, and Acct-Output-Gigawords, these values are often
used for billing purposes.

Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
2016-02-20 19:03:10 +02:00
Ayala Beker
dc55b6b672 nl80211: Add support for full station state operations
This provides means for determining whether the driver supports full AP
station state and setting the needed STA flags for using this
functionality.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
2016-02-20 18:25:13 +02:00
Roy Marples
640b0b933a ctype functions require an unsigned char
Ensure that characters are represented as unsigned char when using
isblank() and isspace(). These function take in a "int c" argument, but
it needs to be unsigned for the cases where EOF is not indicated.

Signed-off-by: Roy Marples <roy@marples.name>
2016-02-18 17:39:00 +02:00
Roy Marples
a084c24469 wired: Fix compile on NetBSD for wired driver
Shuffle wpa_supplicant includes above system ones so that
to fix a compile problem on NetBSD where if_type #define
conflicts with the wpa_driver_if_type enum.

Signed-off-by: Roy Marples <roy@marples.name>
2016-02-18 17:03:57 +02:00
Jouni Malinen
99a94f5588 nl80211: Avoid wpa_printf %s call with NULL pointer in set_param()
While most C libraries print "(null)" when NULL is used as an argument
to printf format string %s, this is not really necessary to print here,
so move the debug print to be after the NULL check.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-02-18 11:59:58 +02:00
Jouni Malinen
99a17351c7 rfkill: Fix a memory leak
rfkill_init() uses realpath() which allocates memory and that memory was
not freed on the success path.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-02-16 00:14:47 +02:00
Lior David
86b5c400a0 nl80211: Basic support for PBSS/PCP
PBSS (Personal Basic Service Set) is a new BSS type for DMG
networks. It is similar to infrastructure BSS, having an AP-like
entity called PCP (PBSS Control Point), but it has few differences.
PBSS support is mandatory for IEEE 802.11ad devices.

Add a pbss flag to the relevant structures to support starting a PCP and
connecting to a PCP. Implement support in the nl80211 driver by using
the new PBSS flag attribute.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
2016-02-08 22:16:04 +02:00
Jouni Malinen
afa453a28a Sync with mac80211-next.git include/uapi/linux/nl80211.h
This brings in nl80211 definitions as of 2016-01-28.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-02-08 22:12:57 +02:00
Roshan Pius
0ae86f9043 wpa_supplicant: Fix couple of C++ compiler errors with header files
Need to include these headers in C++ files for adding a binder interface
to wpa_supplicant. So, fix the following C++ compiler errors in them:
1. Add explicit C-style casts in wpa_buf.h header.
2. Move the nested definition of wpa_driver_scan_ssid in driver.h
outside of wpa_driver_scan_params because it is used in another
structure below.

Signed-off-by: Roshan Pius <rpius@google.com>
2016-02-06 15:26:48 +02:00
Roy Marples
cb22e3b250 BSD: Zero ifindex on interface removal
If an interface is removed, zero the remembered ifindex.
Don't try to set properties on the interface when it is removed.

Signed-off-by: Roy Marples <roy@marples.name>
2016-02-05 17:40:45 +02:00
Roy Marples
af060932de BSD: Disable interface on down
Instead of removing the interface when downed, disable it. Enable it
when it comes back up again.

Signed-off-by: Roy Marples <roy@marples.name>
2016-02-05 12:37:25 +02:00
Roy Marples
dc0ad60314 BSD: Use correct ifindex from route messages
Use the interface index from the correct structure according to the
message instead of assuming rtm_index is correct.

Signed-off-by: Roy Marples <roy@marples.name>
2016-02-05 12:36:44 +02:00
Roy Marples
5f17b2c60e BSD: __FUNCTION__ -> __func__
Signed-off-by: Roy Marples <roy@marples.name>
2016-02-05 12:29:33 +02:00
Purushottam Kushwaha
e15dcf6d1b nl8021: Avoid potential memory leak on error path
The called function nl80211_ht_vht_overrides() was not freeing "msg"
resource in error cases.

Signed-off-by: Purushottam Kushwaha <p.kushwaha@samsung.com>
2016-01-15 20:27:38 +02:00
Roy Marples
449a31662d bsd: Optimize socket use
Create global init to handle socket calls and route messages.
Register each interface inside the global driver so that
routing messages can find the interface based on rtm_ifindex.

Signed-off-by: Roy Marples <roy@marples.name>
2016-01-13 00:17:27 +02:00
Rafał Miłecki
4653ceb750 nl80211: Report disassociated STA / lost peer for the correct BSS
We shouldn't use drv->ctx as it always points to the first BSS. When
using FullMAC driver with multi-BSS support it resulted in incorrect
treating nl80211 events. I noticed with with brcmfmac and BCM43602.

Before my change I was getting "disassociated" on a wrong interface:
wlan0-1: STA 78:d6:f0:00:11:22 IEEE 802.11: associated
wlan0-1: STA 78:d6:f0:00:11:22 WPA: pairwise key handshake completed (RSN)
wlan0: STA 78:d6:f0:00:11:22 IEEE 802.11: disassociated

With this patch it works as expected:
wlan0-1: STA 78:d6:f0:00:11:22 IEEE 802.11: associated
wlan0-1: STA 78:d6:f0:00:11:22 WPA: pairwise key handshake completed (RSN)
wlan0-1: STA 78:d6:f0:00:11:22 IEEE 802.11: disassociated

This doesn't apply to hostapd dealing with SoftMAC drivers when handling
AP SME & MLME is done it hostapd not the firmware.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2016-01-13 00:17:27 +02:00
Jouni Malinen
7d41907bd9 nl80211: Add a missing space to a debug message
The "nl80211: New peer candidate" debug message did not have a space
before the MAC address.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-01-06 13:20:31 +02:00
Ilan Peer
ef3866ab01 nl80211: Don't call linux_iface_up() for a dedicated P2P Device
As a dedicated P2P Device interface does not have a network
interface associated with it, trying to call linux_iface_up()
on it would always fail so this call can be skipped for
such an interface.

Getting interface nlmode can be done only after bss->wdev_id is
set, so move this call to wpa_driver_nl80211_finish_drv_init(),
and do it only in case the nlmode != NL80211_IFTYPE_P2P_DEVICE.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2015-12-28 17:21:08 +02:00