This patch uses sched_scan, if available, when the driver is
initialized. It also adds a couple of cancel operations where
appropriate.
Signed-off-by: Luciano Coelho <coelho@ti.com>
In new Linux kernel versions (>=3.0), nl80211 adds scheduled scan
capability. In order to use this feature to its full extent, we need
to support it in the wpa_supplicant core, so that it can also be used
by other drivers.
This commit adds initial scheduled scan support operations and events.
Signed-off-by: Luciano Coelho <coelho@ti.com>
Move some code to separate functions to reorganize the P2P and WPS
handling during scans. This makes the code a bit cleaner and is
needed for the scheduled scan implementation to avoid duplicated code.
Signed-off-by: Luciano Coelho <coelho@ti.com>
Clear the P2P GO callback parameters when removing the group to avoid
using these for non-P2P AP mode.
This is a fix for the bug I found in the following scenario:
A) p2p_group_add
A) p2p_group_remove wlan0
A) add_n
A) set_n 0 ssid "testap"
A) set_n 0 key_mgmt NONE
A) set_n 0 mode 2
A) set_n 0 frequency 2412
A) enable_n 0
B) try connect to testap
Authentication request will be always rejected because of
HOSTAPD_ACL_REJECT and not cleaned callbacks when group removed.
This allows the AP to be selected based on the BSSID when WPA-PSK
is used with a passphrase. The PSK will be derived from the passphrase
after the SSID has been learned from scan results.
This implements GAS request mechanism that is aimed at being used to
replace use case specific GAS/ANQP implementations in the future.
Compared to the earlier implementation in P2P SD, this implementation
includes support for multiple concurrent requests and more thorough
validation of frames against the pending query data.
GAS header processing, including comeback and reassembly, are handled
within gas_query.c and the users of this module will only need to
provide the Query Request and process the (possibly reassembled)
Query Response.
GAS/ANQP is a generic protocol and in no way specific to P2P, so move
routines used to build GAS/ANQP frames to a separate file that can be
shared for other uses than just P2P service discovery.
The new function, p2p_scan_ie_buf_len(), can be used to figure out
how large a buffer needs to be allocated for p2p_scan_ie() use. This
makes it easier to add new data into the buffer without forcing all
callers to be updated to use a larger buffer.
The P2P search mechanism depends on the same scan functionality that
is used for station mode scans. If these operations are being used
at the same time, scan result processing is not handled properly.
Avoid unexpected behavior by delaying station mode scan requests
if a P2P operation is in progress.
Among other things, this allows the station mode connection attempt
to be continued after a P2P find or group formation has been completed
if the interface is available (i.e., when the P2P group uses a
separate virtual interface).
If the initial attempt to start a scan for p2p_find fails, an error
is reported. However, the P2P scan handler and search state was
left behind. That can result in unexpected behavior when the next
non-P2P scan results are indicated. Avoid this by clearing the
P2P search state on failure.
There is no need to request periodic bgscans when the driver claims
to have capability for roaming within ESS. Ignoring the bgscan
configuration allows the same configuration file to be used both
with drivers the handle roaming and with drivers that don't.
If the driver indicates that it supports BSS selection (including
roaming within an ESS) with WPA_DRIVER_FLAGS_BSS_SELECTION, modify
ap_scan=1 mode to behave like ap_scan=2 mode for BSS selection.
The initial scan is still done to avoid the need for strict
configuration of or security parameters (e.g., to figure out whether
TKIP or CCMP is being used as the group cipher). However, when
requesting the driver to connect, the bssid and freq parameters are
not provided to leave the driver in control of selecting which BSS
to use and to allow the driver to decide when to roam.
These protocols seem to be abandoned: latest IETF drafts have expired
years ago and it does not seem likely that EAP-TTLSv1 would be
deployed. The implementation in hostapd/wpa_supplicant was not complete
and not fully tested. In addition, the TLS/IA functionality was only
available when GnuTLS was used. Since GnuTLS removed this functionality
in 3.0.0, there is no available TLS/IA implementation in the latest
version of any supported TLS library.
Remove the EAP-TTLSv1 and TLS/IA implementation to clean up unwanted
complexity from hostapd and wpa_supplicant. In addition, this removes
any potential use of the GnuTLS extra library.
wpa_supplicant returns the PIN in reply to the connect method. Treating
this value as an integer runs the risk of not returning the correct
value if the first digit(s) happens to be a zero(es). To return the
correct PIN it needs to be returned as a string.
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
The default discovery type is to search for devices only on social
channels. Expand this to also support an initial full scan followed by the
scan of social channels as well as the progressive scan that scans through
all the channels in the Search state rounds. This does not change the
default of scanning only social channels although there is currently a
discrepancy wrt the default used by wpa_cli, which is the full scan first.
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
When parsing a dict entry which is an array of an array of bytes the entry
representing the dict entry has DBUS_TYPE_ARRAY as its type and
WPAS_DBUS_TYPE_ARRAY as its array_type. The function freeing this parsed
data incorrectly tested the entry type for WPAS_DBUS_TYPE_ARRAY while doing
no testing of this value for array_type. This results in a memory leak
whenever a D-Bus message with this type of data is parsed.
Messages affected are:
fi.w1.wpa_supplicant1.Interface.P2PDevice
using RequestedDeviceTypes with Find method
using SecondaryDeviceTypes or VendorExtension with P2PDeviceProperties
fi.w1.wpa_supplicant1.Group
using WPSVendorExtensions with Properties property
All of the above messages are parsed with the same function,
wpa_dbus_dict_get_entry, so the assignment of the entry's type and
array_type is consistent. The parsed data is also consistently freed with
the same function, wpa_dbus_dict_entry_clear, so we can use the same checks
to free the data correctly.
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
The action done handling needs to abort an off-channel period since one
might have been used for example for GO negotiation and after action
done the code assumes it can start a new off-channel period.
This fixes a bug I introduced when adding support for
in-kernel off-channel transmissions.
Reported-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
eapol_test command line argument -o<file> can now be used to request
the received server certificate chain to be written to the specified
file. The certificates will be written in PEM format. [Bug 391]
The proactive_key_caching parameter was missed in mapping the
config_ssid data into the WPA state machine configuration. This
prevented addition of PMKSA cache entries based on PMKSA caching
candidate events.
This allows drivers to disable CCK rates from Probe Request frames.
For nl80211, this is currently applying only to the supported rates
element(s), but this mechanism could be extended to address TX rate
control masking, too, to lessen need for global rate disabling.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
The P2P specification (3.1.4.3) disallows use of the Label configuration
method between two P2P devices. This was previously enforced at upper
level, but the obsolete code can be removed from wpa_supplicant. This
adds a bit more strict enforcement of the policy, but should not result
in practical differences since no known P2P implementation uses Label
config method.
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.
The previous code was trying to figure out which WPA version is
used based on the extra IEs requested for Association Request. That
did not work properly in cases where non-WPA networks are used with
some extra IEs. Fix this by using more robust mechanism for passing
the WPA versions from core wpa_supplicant to the driver_ops
associate().
Instead of hardcoding the Config Methods attribute value in Probe
Request frames, set this based on the configured parameter
config_methods to allow correct set of methods to be advertised.
This change is a first step in better supporting different driver
architectures for AP mode operations with nl80211. This commit in
itself does not add new functionality, but it makes it easier to add
new AP mode parameters to address needs of drivers that have more of
the MLME/SME in firmware or kernel.
Various pieces of the P2P code assume that P2P is enabled, so make
the D-Bus code not call the P2P stuff if P2P is disabled. Also
ensures that if P2P is disabled a suitable error is returned to
the D-Bus caller.
Signed-off-by: Dan Williams <dcbw@redhat.com>
The read, write, read-write permissions can be figured out from
getter/setter function pointers, so there is no need for maintaining
that information separately.
If uapsd is explicitly enabled, set conf->bss->wmm_enabled and
conf->bss->wmm_uapsd to enable (and advertise) uapsd.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
These properties are already correctly treated as bytes for the local
device, we need to do same for peers.
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
A number of fixes/improvements here:
1) Remove casting of getter/setter function types which allows
us to change the prototypes in the future and not have hard-to-find
runtime segfaults
2) Instead of having the getters create a fake reply message which
then gets its arguments copied into the real reply message, and is
then disposed, just pass message iters around and have them add
their arguments to the message itself
3) For setters, just pass in the message iter positioned at the
start of the argument list, instead of each setter having to skip
over the standard interface+property name
4) Convert error handling to use DBusError and return the error
back down through the call stacks to the function that will
actually send the error back to the caller, instead of having a
fake DBusMessage of type DBUS_MESSAGE_TYPE_ERROR that then
needs to have the error extracted from it.
But most of all, this fixes various segfaults (like rh #725517
and #678625) which were caused by some functions deep down in the
getter callpaths wanting a source DBusMessage* when the getters were
used for two things: signals (which don't have a source DBusMessage)
and methods (which will have a source DBusMessage that's being
replied to). This duality made the code fragile when handling
errors like invalid IEs over the air.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Fix the previous code that was hardcoding the p2p parameter based
on the driver P2P capability regardless of whether the connection
was really used for P2P or not.
Currently, wpa_driver_nl80211_authenticate() changes the interface type
to station. However, in case of P2P, we need to change the interface
type to P2P_CLI.
Add p2p field to the authentication params, and consider it for choosing
the correct interface type.
Signed-off-by: Eliad Peller <eliad@wizery.com>
This makes sure that the old connection is not maintained if the new
configuration does not allow it anymore. In addition, it is better to
use wpa_supplicant_clear_connection() instead of just clearing
wpa_s->current_ssid here to keep things in sync.
When the BSS table size limit has been reached, drop first the oldest
BSS entries for which there is not a matching network in the
configuration based on SSID (wildcards are ignored). This makes it
less likely to hit connection issues in environments with huge number
of visible APs.
