This new mechanism allows P2P Client to request an IPv4 address from the
GO as part of the 4-way handshake to avoid use of DHCP exchange after
4-way handshake. If the new mechanism is used, the assigned IP address
is shown in the P2P-GROUP-STARTED event on the client side with
following new parameters: ip_addr, ip_mask, go_ip_addr. The assigned IP
address is included in the AP-STA-CONNECTED event on the GO side as a
new ip_addr parameter. The IP address is valid for the duration of the
association.
The IP address pool for this new mechanism is configured as global
wpa_supplicant configuration file parameters ip_addr_go, ip_addr_mask,
ip_addr_star, ip_addr_end. For example:
ip_addr_go=192.168.42.1
ip_addr_mask=255.255.255.0
ip_addr_start=192.168.42.2
ip_addr_end=192.168.42.100
DHCP mechanism is expected to be enabled at the same time to support P2P
Devices that do not use the new mechanism. The easiest way of managing
the IP addresses is by splitting the IP address range into two parts and
assign a separate range for wpa_supplicant and DHCP server.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When NFC connection handover is used to trigger GO Negotiation, the
channel used for the GO Negotiation frames is already known. As such,
there is no need to use the Listen operations to find the peer.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The device with the NFC Tag can be configured to enable NFC to be used
with "P2P_SET nfc_tag 1" and "P2P_LISTEN" commands to allow static
handover to be used.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
WPS_NFC_TAG_READ can be used to report static connection handover where
the connection handover select message was read from an NFC tag.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
"NFC_REPORT_HANDOVER {INIT,RESP} P2P <req> <sel>" can now be used to
report completed NFC negotiated connection handover in which the P2P
alternative carrier was selected.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
"NFC_GET_HANDOVER_{REQ,SEL} NDEF P2P-CR" can now be used to build P2P
alternative carrier record for NFC connection handover request/select
messages.
Static connection handover case can be enabled by configuring the DH
parameters (either with wps_nfc_* configuration parameters or with
WPS_NFC_TOKEN command at run time. The NFC Tag contents can be generated
with "NFC_GET_HANDOVER_SEL NDEF P2P-CR-TAG" after having configured
Listen channel (p2p_listen_reg_class/p2p_listen_channel).
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
GO Negotiation needs to know which OOB Device Password ID is assigned
for the peer when NFC is used as the trigger.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
These functions can be used to build the WPS attributes for P2P NFC
connection handover messages.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
New functionality is needed for this with the update NFC connection
handover design that depends on the AP side using the public key hash
from the handover request.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The new WPS connection handover select includes Registrar public key
hash instead of credential. Use the new information to start
abbreviated WPS handshake instead of configuring a new network directly
from the old Credential-from-NFC design.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The contents of the WPS connection handover select message was modified
to include the Registrar public key hash instead of the credential.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The new NFC connection handover design requires the AP/Registrar to
process the connection handover request message received from the
Enrollee. Add control interface commands for handling this.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
It is more useful to be able to build a single NFC carrier record
instead of the full connection handover request message to allow
external components to decide whether to negotiate which alternative
carrier is used. This updates the carrier record contents to the new
design to include Enrollee public key hash and provides this as a
carrier record instead of full message. An external program is expected
to be used to build the full NFC connection handover message with
potentially other alternative carrier records included.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This allows DH key generation to be shared for other purposes than just
the case of OOB Device Password building. In addition, force the DH
public key buffer to be full 192 octets with zero padding to avoid
issues with the buffer being used in messages sent to a peer device.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The new Device Password ID 7 is used to indicate that NFC connection
handover is used with DH public key hash from both devices being
exchanged over the NFC connection handover messages. This allows an
abbreviated M1-M2 handshake to be used since Device Password does not
need to be used when DH is authenticated with the out-of-band
information (validation of the public key against the hash).
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When both the Registrar and Enrollee public key hashes are delivered
out-of-band (in NFC connection handover), use abbreviated WPS handshake
(skip M3-M8).
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If the SSID of the WPS AP is known, it should be possible to limit AP
selection based on this when searching for an active WPS AP. This commit
adds a mechanism to specify SSID for this type of uses.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Since the Enrollee can now get the public key hash from the Registrar,
there is need to validate this during the WPS protocol run.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Instead of terminating the WPS protocol immediately, go through an M2D
exchange to notify Enrollee of the public key hash mismatch.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This old Version attribute is not really needed anymore for these use
cases with the assumption that there are no existing WPS+NFC
deployments. It was removed from the WSC specification, so make the
implementation match that change.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Provide local GO channel to the P2P module so that it can be used in
messages that indicate the current operating channel.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This functionality is needed for other messages, too, so split the group
info building code into a separate helper function.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This adds a QCA vendor specific nl80211 event to allow the driver to
indicate a list of frequency ranges that should be avoided due to
interference or possible known co-existance constraints. Such
frequencies are marked as not allowed for P2P use to force groups to be
formed on different channels.
If a P2P GO is operating on a channel that the driver recommended not to
use, a notification about this is sent on the control interface and
upper layer code may decide to tear down the group and optionally
restart it on another channel. As a TODO item, this could also be changed
to use CSA to avoid removing the group.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This file is used as a registry of identifier assignments from the
Qualcomm Atheros OUI 00:13:74 for purposes other than MAC address
assignment. One of the first uses will be for nl80211 vendor
commands/events which is reason for the preparation change in
driver_nl80211.c
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Since the global ctrl_iface can be used with IFNAME= prefix to send
commands to be processed by per-interface code, it should have the same
(well, close to same since the prefix takes some space) limits on
command length as the per-interface ctrl_iface. Increase the buffer from
256 to 4096 to achieve this.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When GAS is used with PMF negotiated, Protected Dual of Public Action
frames are expected to be used instead of Public Action frames, i.e.,
the GAS/ANQP frames are expected to be encrypted. Conver Public Action
GAS queries to use Dual of Public Action frame if PMF has been
negotiated with the AP to which the frame is being sent.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When GAS is used with PMF negotiated, Protected Dual of Public Action
frames are expected to be used instead of Public Action frames, i.e.,
the GAS/ANQP frames are expected to be encrypted. Add support for this
different category of Action frames being used for GAS. The payload
after the Category field is identical, so the only change is in using
the Category field based on what was received in the request frames. For
backwards compatibility, do not enforce protected dual to be used on the
AP side, i.e., follow what the station does.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Due to misplaced parenthesis, unprotected not-Robust Action frames
(e.g., Public Action frames) were dropped in handle_assoc() when such
frames were received during an association that had negotiated use of
PMF. This is not correct since only unprotected Robust Action frames
were supposed to be handled in this way.
This would have broken any Public Action frame use during PMF
association, but such frames were not really supposed to be used
currently (ANQP as the only possible use case should really use
protected dual option in such case).
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This makes it more convenient for test scripts to change parameters for
a specific test case without having to separately clear them between
each test case.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When start PNO request comes from control interface, wpa_supplicant
should wait until ongoing sched_scan (triggered by wpa_supplicant)
gets cancelled. Issuing cancel sched_scan and start PNO scan
one after another from pno_start() would lead wpa_supplicant to clear
wps->sched_scanning flag while getting sched_scan stopped event
from driver for cancel sched_scan request. In fact, PNO scan will
be in progress in driver and wpa_s->sched_scanning will not be set
in such cases.
In addition to this change, RSSI threshold limit is passed as part of
start sched_scan request. This was previously set only in pno_start(),
but the same parameter should be available for generic sched_scan calls
as well and this can now be reached through the new PNO start sequence.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Fix sizeof in a validity comparison of nl80211_vendor_cmd_info size. The
incorrect version happened to work on 64-bit builds due the structure
being eight octets, but this was incorrect and would not used with
32-bit builds.
Signed-hostap: Max Stepanov <Max.Stepanov@intel.com>
While iterating over the stations hostapd_ctrl_iface_sta_mib()
might be called with sta == NULL. Fix this.
Signed-hostap: Ilan Peer <ilan.peer@intel.com>
Verify wpa_s->radio pointer before accessing it. If interface addition
fails, this could get called before wpa_s->radio has been set.
The segmentation fault details:
Program received signal SIGSEGV, Segmentation fault.
0x00000000004b9591 in wpas_ctrl_radio_work_flush (wpa_s=0x77fff0) at ctrl_iface.c:5754
5754 dl_list_for_each_safe(work, tmp, &wpa_s->radio->work,
Call stack:
0 wpas_ctrl_radio_work_flush (wpa_s=0x77fff0) at ctrl_iface.c:5754
1 wpa_supplicant_deinit_iface (wpa_s=0x77fff0, notify=0, terminate=0) at wpa_supplicant.c:3619
2 wpa_supplicant_add_iface (global=0x75db10, iface=0x7fffffffe270) at wpa_supplicant.c:3691
3 wpas_p2p_add_p2pdev_interface (wpa_s=0x75dd20) at p2p_supplicant.c:3700
4 main (argc=<optimized out>, argv=<optimized out>) at main.c:317
Function:
5750 void wpas_ctrl_radio_work_flush(struct wpa_supplicant *wpa_s)
5751 {
5752 struct wpa_radio_work *work, *tmp;
5753
5754 dl_list_for_each_safe(work, tmp, &wpa_s->radio->work,
5755 struct wpa_radio_work, list) {
5756 struct wpa_external_work *ework;
5757
5758 if (os_strncmp(work->type, "ext:", 4) != 0)
Root cause:
(gdb) p wpa_s->radio
$1 = (struct wpa_radio *) 0x0
Signed-hostap: Max Stepanov <Max.Stepanov@intel.com>
The new default value (from 300 to 60 seconds) makes the internal P2P
peer list somewhat faster to react to peers becoming unreachable while
still maintaining entries for some time to avoid them disappearing
during user interaction (e.g., selecting a peer for a connection or
entering a PIN).
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Scan request failures are observed in wpa_supplicant debug log when
Android framework starts PNO scan in driver via ctrl interface command
'set pno 1' and wpa_supplicant also tries to issue a scan request after
PNO has started in the driver.
Some drivers may reject a normal scan request when PNO is already in
progress. wpa_supplicant should consider PNO status before issuing start
scan request to the driver. Otherwise, wpa_supplicant will get failures
from driver for the scan request and it will end up rescheduling scan
request in periodic interval and get a start scan request failure for
each attempt.
In order to avoid unnecessary scan attempt when PNO scan is already
running, PNO status is checked before issuing scan request to driver.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
