All but the last fragment had their length checked against the remaining
room in the reassembly buffer. This allowed a suitably constructed last
fragment frame to try to add extra data that would go beyond the buffer.
The length validation code in wpabuf_put_data() prevents an actual
buffer write overflow from occurring, but this results in process
termination. (CVE-2015-5314)
Signed-off-by: Jouni Malinen <j@w1.fi>
All but the last fragment had their length checked against the remaining
room in the reassembly buffer. This allowed a suitably constructed last
fragment frame to try to add extra data that would go beyond the buffer.
The length validation code in wpabuf_put_data() prevents an actual
buffer write overflow from occurring, but this results in process
termination. (CVE-2015-5315)
Signed-off-by: Jouni Malinen <j@w1.fi>
Using "STATUS" command triggers CTRL-EVENT-STATE-CHANGE and
CTRL-EVENT-CONNECTED (if connected to some AP) events. These events
cause problems in Android WifiStateMachine in Marshmallow. Due to these
events WifiStateMachine sometimes disconnects the OSU SSID connection,
while hs20-osu-client waits for IP address.
Signed-off-by: Somdas Bandyopadhyay <somdas.bandyopadhyay@intel.com>
Some APs may send RSC octets in EAPOL-Key message 3 of 4-Way Handshake
or in EAPOL-Key message 1 of Group Key Handshake in the opposite byte
order (or by some other corrupted way). Thus, after a successful
EAPOL-Key exchange the TSC values of received multicast packets, such as
DHCP, don't match the RSC one and as a result these packets are dropped
on replay attack TSC verification. An example of such AP is Sapido
RB-1732.
Work around this by setting RSC octets to 0 on GTK installation if the
AP RSC value is identified as a potentially having the byte order issue.
This may open a short window during which older (but valid)
group-addressed frames could be replayed. However, the local receive
counter will be updated on the first received group-addressed frame and
the workaround is enabled only if the common invalid cases are detected,
so this workaround is acceptable as not decreasing security
significantly. The wpa_rsc_relaxation global configuration property
allows the GTK RSC workaround to be disabled if it's not needed.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
While this is not part of RFC 4137, the way m.check(eapReqData) is
implemented in wpa_supplicant allows an EAP method to not update the
ignore value even though each such call is really supposed to get a new
response. It seems to be possible to hit a sequence where a previous EAP
authentication attempt terminates with sm->ignore set from the last
m.check() call and the following EAP authentication attempt could fail
to go through the expected code path if it does not clear the ignore
flag. This is likely only hit in some error cases, though. The hwsim
test cases could trigger this with the following sequence:
eap_proto_ikev2 ap_wps_m1_oom
Signed-off-by: Jouni Malinen <j@w1.fi>
When using CONFIG_TLS=internal and starting hostapd with multiple
configuration files that each initialize TLS server, the server
certificate and related data was not freed for all the interfaces on
exit path. Fix this by freeing the credential data that is stored
separately for each call to tls_init().
Signed-off-by: Jouni Malinen <j@w1.fi>
Expire pending DB request for EAP-SIM/AKA/AKA'. Timeout defaults to 1
second and is user configurable in hostapd.conf (eap_sim_db_timeout).
Signed-off-by: Frederic Leroy <frederic.leroy@b-com.com>
This extends ieee80211_freq_to_channel_ext() with knowledge of the
operating classes for the 5 GHz channels 100..140.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Provide information on whether EAPOL-Key frame was sent successfully to
kernel for transmittion. wpa_eapol_key_send() will return
>= 0 on success and < 0 on failure. After receiving EAPOL-Key msg 3/4,
wpa_supplicant sends EAPOL-Key msg 4/4 and shows CTRL-EVENT-CONNECTED
only after verifying that the msg 4/4 was sent to kernel for
transmission successfully.
Signed-off-by: Avichal Agarwal <avichal.a@samsung.com>
Signed-off-by: Kyeong-Chae Lim <kcya.lim@samsung.com>
When multiple interfaces across mutiple radios are started using a
single instance of hostapd, they all come up at different times
depending upon how long the ACS and HT scan take on each radio. This
will result in stations (that already have the AP profile) associating
with the first interfaces that comes up. For example in a dual band
radio case (2G and 5G) with ACS enabled, 2G always comes up first
because the ACS scan takes less time on 2G and this results in all
stations associating with the 2G interface first.
This feature brings up all the interfaces at the same time. The list of
interfaces specified via hostapd.conf files on the command line are all
marked as sync interfaces. All the interfaces are synchronized in
hostapd_setup_interface_complete().
This feature is turned on with '-S' commmand line option.
Signed-off-by: Srinivasa Duvvuri <sduvvuri@chromium.org>
Assign nl80211vendor commands QCA_NL80211_VENDOR_SUBCMD_OTA_TEST and
QCA_NL80211_VENDOR_SUBCMD_SET_TXPOWER_SCALE as well as corresponding
attributes.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
P2P device discovery can add peer entries based on a message directly
from a peer and from a Probe Response frame from a GO for all the P2P
Clients in the group. The former case for filtering out control
characters from the device name while the latter was not. Make this
consistent and filter both cases in the same way to avoid confusing
external programs using the device name of a P2P peer.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
There is no point in sending TPK M3 (TDLS Setup Confirm) with a failure
status if the first transmission attempt fails. Instead, just return a
failure by disabling the link rather than retransmitting the TPK M3
frame with an error status.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
hmac_sha256_kdf() got pulled in only if CONFIG_ERP=y is set. Fix
test_sha256() by making the test case conditional on the function being
present.
Signed-off-by: Jouni Malinen <j@w1.fi>
wpa_debug_reopen_file() used to write an error message at MSG_ERROR
level if it was called with last_path == NULL (the last debug log file
path not known). This is not a fatal error, but a normal case if
wpa_debug_open_file() has not been used. Remove the error message and
return success in such case.
Signed-off-by: Jouni Malinen <j@w1.fi>
Linux packet socket workaround(*) has an impact in performance when the
workaround socket needs to be kept open to receive EAPOL frames. While
this is normally avoided with a kernel that has the issue addressed by
closing the workaround packet socket when detecting a frame through the
main socket, it is possible for that mechanism to not be sufficient,
e.g., when an open network connection (no EAPOL frames) is used.
Add a build option (CONFIG_NO_LINUX_PACKET_SOCKET_WAR=y) to disable the
workaround. This build option is disabled by default and can be enabled
explicitly on distributions which have an older kernel or a fix for the
kernel regression.
Also remove the unused variable num_rx.
(*) Linux kernel commit 576eb62598f10c8c7fd75703fe89010cdcfff596
('bridge: respect RFC2863 operational state') from 2012 introduced a
regression for using wpa_supplicant with EAPOL frames and a station
interface in a bridge.
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reorder terms in a way that no invalid pointers are generated with
pos+len operations. end-pos is always defined (with a valid pos pointer)
while pos+len could end up pointing beyond the end pointer which would
be undefined behavior.
Signed-off-by: Jouni Malinen <j@w1.fi>
hmac_sha256() and hmac_sha256_vector() return a result code now, so use
that return value to terminate HMAC-SHA256-based GKDF/MIC similarly to
what was already done with the CMAC-based GKDF/MIC.
Signed-off-by: Jouni Malinen <j@w1.fi>
The recently added ProxyARP support (proxy_arp=1) in hostapd allows a
STA IPv4 address to be learned from DHCP or ARP messages. If that
information is available, add it to Account-Request messages in
Framed-IP-Address attribute.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new hostapd configuration parameter no_probe_resp_if_max_sta=1 can
be used to request hostapd not to reply to broadcast Probe Request
frames from unassociated STA if there is no room for additional stations
(max_num_sta). This can be used to discourage a STA from trying to
associate with this AP if the association would be rejected due to
maximum STA limit.
Signed-off-by: Jouni Malinen <j@w1.fi>
If hostapd or wpa_supplicant is built from a git repository, add a
VERSION_STR postfix from the current git branch state. This is from "git
describe --dirty=+". VERSION_STR will thus look something like
"2.6-devel-hostap_2_5-132-g4363c0d+" for development builds from a
modified repository.
This behavior is enabled automatically if a build within git repository
is detected (based on ../.git existing). This can be disabled with
CONFIG_NO_GITVER=y in wpa_supplicant/.config and hostapd/.config.
Signed-off-by: Jouni Malinen <j@w1.fi>
On TPK lifetime expiration, tear down the direct link before renewing
the link in the case of TDLS initiator processing. The expired key
cannot be used anymore, so it is better to explicitly tear down the old
link first.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This improves robustness of GO Negotiation in special cases where GO
Negotiation Request frames from the peer may end up getting delivered
multiple times, e.g., due to interference and retransmitted frames not
getting properly filtered out in duplicate detection (which is something
that number of drivers do not implement for pre-associated state).
If we have already replied with GO Negotiation Response frame with
Status 1 (not yet ready), do not reply to another GO Negotiation Request
frame from the peer if we have already received authorization from the
user (P2P_CONNECT command) for group formation and have sent out our GO
Negotiation Request frame. This avoids a possible sequence where two
independent GO Negotiation instances could go through in parallel if the
MAC address based rule on avoiding duplicate negotiations is not able to
prevent the case. This can allow GO Negotiation to complete successfully
whereas the previous behavior would have likely resulted in a failure
with neither device sending a GO Negotiation Confirm frame.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Some drivers (like mac80211) do not accept changing the TX bitrate mask
before the network interface is up. Thus, calling
nl80211_disable_11b_rates() before the interface is up fails, and the
P2P network interface continues to use invalid bitrates.
To fix this call nl80211_disable_11b_rates() immediately after the
interface is brought up (and also after rfkill is unblocked).
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
While testing, I noticed that printf_encode() makes control characters
human-readable, with one exemption, the DEL character (ASCII 127).
Assuming this exemption was unintentional, make it appear as an escaped
\x7f instead of a literal DEL character in the output.
Signed-off-by: Josh Lehan <krellan@krellan.net>
atheros_set_opt_ie() needs to be called before freeing drv->wpa_ie to
avoid hitting double-free on the deinit path. Similarly,
drv->wps_beacon_ie and drv->wps_probe_resp_ie could have been used after
being freed. Fix these be moving the atheros_set_opt_ie() call in
atheros_deinit().
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It is possible for a driver to support sufficient number of channels to
hit the previous limit of 200 characters for the "nl80211: Scan included
frequencies:" debug message. Increase the maximum buffer length to 300
characters to allow more complete list of scanned frequencies to be
written into the debug log. This limit is more in line with the
MAX_REPORT_FREQS (50) limit.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
In addition to the PTK length increasing, the length of the PMK was
increased (from 256 to 384 bits) for the 00-0f-ac:12 AKM. This part was
missing from the initial implementation and a fixed length (256-bit) PMK
was used for all AKMs.
Fix this by adding more complete support for variable length PMK and use
384 bits from MSK instead of 256 bits when using this AKM. This is not
backwards compatible with the earlier implementations.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The previous implementation used an obsolete sm->eapol_key_crypt pointer
which was not set anywhere (i.e., was always NULL). In addition, the
condition of sm->eap_if->eapKeyAvailable was not valid here since this
is the case of MSK from an external authentication server and not the
internal EAP server. Consequently, the wpa_auth_pmksa_add() call here
was never used.
The PMKSA cache was still added, but it happened at the completion of
the 4-way handshake rather than at the completion of EAP authentication.
That later location looks better, so delete the unreachable code in
Access-Accept handling. In addition, remove the now complete unused
struct eapol_state_machine eapol_key_* variables.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
With driver wrappers that implement set_privacy(), set_generic_elem(),
set_ieee8021x(), or set_ap_wps_ie(), it was possible to hit a NULL
pointer dereference in error cases where interface setup failed and
the network configuration used WPA/WPA2, IEEE 802.1X, or WPS.
Fix this by skipping the driver operations in case the driver interface
is not initialized.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Don't add unnecessary P2PS follow-on PD Request attributes when
the request status is not P2P_SC_SUCCESS_DEFERRED.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
In P2PS PD Request processing in some error case scenarios, such as
verification of the WPS config method, the flow aborts before saving
mandatory P2PS PD Request attributes. This in turn causes the control
interface notification events to be sent with invalid parameters.
Fix this by changing the order of verification and processing steps of
the PD Request message handling.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
On successful P2P PD, report the chosen frequency in case the local
device is going to be the P2P GO, so in can later be used to instantiate
the new P2P GO, etc.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
In case the P2PS PD Response includes the P2P Channel List attribute,
update the peer device supported channels and verify that the local
device has common channels with the peer (only a sanity check).
If the Operating Channel attribute is included in the response, check
that it is included in the intersection and store it as the peer's
operating frequency (so it could later be used in the join flow, etc.).
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
In case the P2PS PD Request includes the P2P Channel List attribute,
update the peer device supported channels and check if we have common
channels with the peer that can be used for the connection establishment
based on the connection capabilities:
1. In case of P2PS PD Request with no common channels, defer
the flow unless auto accept equals true and the connection
capabilities equals NEW (in which case the channels would be
negotiated in the GO Negotiation).
2. In case of Follow up P2PS PD Request with no common channels,
reject the request unless the connection capability is NEW.
In addition, in case of a successful P2PS PD, save the device
operating frequency (so it can be later used for join flow, etc.).
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Add operating channel selection and channel list processing similar to
that done when building GO Negotiation Request, i.e., consider the
currently used channels, configured channels, etc.
P2PS introduces a flow where a responder needs to provide channel data
without being previously aware of the current constraints, i.e., the
channels currently in use by other interfaces. To handle this, extend
the get_group_capability() callback to also handle channel selection
aspects of group capabilities.
In case there is an active P2P GO that is going to be used for the P2PS
PD, force its current operating frequency in the PD attributes.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
If a Provision Discovery Request is received for an unknown peer, a new
device entry is being added, but the flow continues without updating the
local p2p_device pointer, requiring to check the pointer value before
every access.
1. Change this, so once a device is added, the flow updates the local
p2p_device pointer and avoids the checks later in the flow.
2. If the device is not known even after adding it, skip the processing,
send the PD Response, and return.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
It is possible that p2p_build_prov_disc_resp() is called with a NULL
device entry, which might be dereferenced when calling
p2p->cfg->get_persistent_group() for the P2PS with persistent group
case. Fix this by checking the device pointer before accessing it.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Write a text version of the content type and handshake type in debug log
to make it easier to follow TLS exchange.
Signed-off-by: Jouni Malinen <j@w1.fi>
The utf8_string_len comparison was off by one and ended up accepting a
truncated three-byte encoded UTF-8 character at the end of the string if
the octet was missing. Since the password string gets null terminated in
the configuration, this did not result in reading beyond the buffer, but
anyway, it is better to explicitly reject the string rather than try to
use an incorrectly encoded UTF-8 string as the password.
Signed-off-by: Jouni Malinen <j@w1.fi>
BoringSSL has removed the OpenSSL OCSP implementation (OCSP_*()
functions) and instead, provides only a minimal mechanism for include
the status request extension and fetching the response from the server.
As such, the previous OpenSSL-based implementation for OCSP stapling is
not usable with BoringSSL.
Add a new implementation that uses BoringSSL to request and fetch the
OCSP stapling response and then parse and validate this with the new
implementation within wpa_supplicant. While this may not have identical
behavior with the OpenSSL-based implementation, this should be a good
starting point for being able to use OCSP stapling with BoringSSL.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Validate that all the required attributes appear in a P2PS PD Request,
and in addition, in the case of follow-on PD Request, check that the
given values match those of the original PD Request.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
When a follow-on PD request is received, peer should not send a
follow-on PD response except the case when the PD request status value
is 12 (Success: accepted by user). Previously, the wpa_supplicant
implementation behaved differently sending the follow-on PD Response on
any follow-on PD Request.
Fix the issue by adding the following changes:
1. Don't send PD Response if the follow-on PD Request status is
different than 12 (seeker side).
2. Don't wait for the follow-on PD Response if the follow-on PD
Request was sent with the status different than 12 (advertiser
side).
3. If the follow-on PD Request was sent with the status different
than 12 use the follow-on PD Request ACK as PD completion event
(advertiser side).
4. Notify ASP about the PD completion by sending P2PS-PROV-DONE with
the PD Request status (advertiser side).
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
It is expected that p2p_flush() should stop any ongoing p2p operation.
However, this was not the case with extended listen which was not
cancelled on p2p_flush() flows. Fix this, by cancelling the extended
listen in p2p_flush().
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
The new hostapd configuration parameter anqp_elem can now be used to
configure arbitrary ANQP-elements for the GAS/ANQP server. In addition
to supporting new elements, this can be used to override previously
supported elements if some special values are needed (mainly for testing
purposes).
The parameter uses following format:
anqp_elem=<InfoID>:<hexdump of payload>
For example, AP Geospatial Location ANQP-element with unknown location:
anqp_elem=265:0000
and AP Civic Location ANQP-element with unknown location:
anqp_elem=266:000000
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The switch to BoringSSL broke keystore-backed keys because
wpa_supplicant was using the dynamic ENGINE loading to load
the keystore module.
The ENGINE-like functionality in BoringSSL is much simpler
and this change should enable it.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Some devices cannot respond to inactive client probe (empty data frame)
within one second. For example, iPhone may take up to 3 secs. This
becomes a significant problem when ap_max_inactivity is set to lower
value such as 10 secs. iPhone can lose Wi-Fi connection after ~1 min
of user inactivity.
Signed-off-by: Dmitry Ivanov <dima@ubnt.com>
On RADIUS auth/acct failures hostapd will try a new server if one is
available. Reuse the failover logic to force a socket renewal if only
one RADIUS server is configured.
This fixes problems when a route for the RADIUS server gets added after
the socket was "connected". The RADIUS socket is still sending the
RADIUS requests out using the previous route.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
IEEE Std 802.11-2012 13.3.1 states that the AID should be generated on
the local node for each peer. Previously, we were using the peer link ID
(generated by the peer) which may not be unique among all peers. Correct
this by reusing the AP AID generation code.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Commit d66dcb0d0b ('WEP: Remove VLAN
support from hostapd') already removed VLAN support for WEP encryption,
so vlan_setup_encryption_dyn() is no longer needed.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
This ensures that group key is set as long as the interface exists.
Additionally, ifconfig_up is needed as wpa_group will enter
FATAL_FAILURE if the interface is still down. Also vlan_remove_dynamic()
is moved after wpa_auth_sta_deinit() so vlan_remove_dynamic() can check
it was the last user of the wpa_group.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Some APs don't include a CSA IE when an ECSA IE is generated,
and mac80211 used to fail following their channel switch. Add
a testing option to hostapd to allow reproducing the behavior.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fix and extend the ieee80211_freq_to_channel_ext() function to deal
correctly with VHT operating classes (128, 129, 130).
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
The CSA channel and operating class values need to be set for all types
of channel switch (i.e., either if it's triggered by the control
interfaces or due to the GO-follows-STA flow). To do so, move the code
that sets them from the GO-follows-STA flow to the more generic
hostapd_fill_csa_settings() function.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
The hostapd_hw_get_channel() function can't be used to convert center
frequencies to channel numbers, because the hw mode lists don't have all
the center frequencies. The hw mode lists have the main channel
frequencies and flags to indicate the channel topography.
For instance, channel 5805 with VHT80- has the channel center frequency
segment 0 at 5775. This segment is only indicated indirectly in the hw
mode list by the HOSTAPD_CHAN_VHT_50_30 flag. The hw mode list doesn't
have any elements with frequency 5775 to allow the conversion to a
channel number. Thus, we need to use ieee80211_freq_to_chan() instead.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Pass to the driver a list of CSA counter offsets when sending Probe
Response frames during a CSA period. This allows the kernel to correctly
update the CSA/eCSA elements.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Some management frames contain CSA counters which should be updated by
kernel. Change driver op send_mlme() allowing to send a frame,
specifying an array of offsets to the CSA counters which should be
updated. For example, CSA offsets parameters should be specified when
sending Probe Response frames during CSA period.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Advertise current operating class in Beacon and Probe Response frames.
This Supported Operating Classes element is required by the standard
when extended channel switch is supported. However, since this element
doesn't reflect correctly the sub-band spectrum breakdown and can't be
effectively used by clients, publish only the minimal required part
which is the current operating class.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Fix the order of CSA, eCSA, Secondary Channel Offset, and Wide Bandwidth
Channel Switch Wrapper elements in Beacon and Probe Response frames.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Add new GO frequency move policy. The P2P_GO_FREQ_MOVE_SCM_ECSA prefers
SCM if all the clients advertise eCSA support and the candidate
frequency is one of the group common frequencies.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Extended channel switch provides an ability to switch between operating
classes and is required for P2P Devices by the P2P specification when
switching in 5 GHz.
When the operating class is provided for channel switch, the AP/P2P GO
will use eCSA IE in addition to the regular CSA IE both on 2.4 GHz and 5
GHz bands.
Transitions between different hw_modes are not supported.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Channel switch may be performed using both CSA and eCSA IEs together.
This may happen, for example with a P2P GO on band A with legacy
clients. Extend driver API to support up to 2 CSA counters.
This patch also includes the required implementation for nl80211.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
When building Beacon and Probe Response frames for the target channel,
consider bandwidth parameter for VHT channels. In addition, add support
for updating vht_oper_centr_freq_seg0_idx and
vht_oper_centr_freq_seg1_idx.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
When switching to a VHT channel with width greater than 20 MHz, add Wide
Bandwidth Channel Switch element. This element is added in Beacon and
Probe Response frames inside Channel Switch Wrapper element.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
When CSA is started, hostapd_change_config_freq() computes the channel
from the provided frequency. Use this stored channel to add CSA IE in
Beacon frames, instead of recomputing the channel each time.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
All the other web_connection_parse_*() functions were already doing
this, so make the GET handler consistent as well.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 7d711541dc ('Clear TK part of PTK
after driver key configuration') started clearing TK from memory
immediately after having configured it to the driver when processing
EAPOL-Key message 3/4. While this covered the most common case, it did
not take into account the possibility of the authenticator having to
retry EAPOL-Key message 3/4 in case the first EAPOL-Key message 4/4
response is lost. That case ended up trying to reinstall the same TK to
the driver, but the key was not available anymore.
Fix the EAPOL-Key message 3/4 retry case by configuring TK to the driver
only once. There was no need to try to set the same key after each
EAPOL-Key message 3/4 since TK could not change. If actual PTK rekeying
is used, the new TK will be configured once when processing the new
EAPOL-Key message 3/4 for the first time.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows the binary sizes to be reduced if no support for nl80211
vendor extensions are needed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Allow wpa_supplicant to use vendor scan (if supported by the driver)
together with the normal nl80211 scan and handling external scan events.
Since this results in possibility of concurrent scan operations, some of
the operations related to scan results need to check more carefully when
an event is relevant for a specific interface.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit contains the necessary changes for supporting the QCA vendor
scan implementation, i.e., sending the vendor scan command to underlying
driver and handling the vendor scan events from the driver.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Introduce definitions for QCA vendor specific subcommands
and attributes to support vendor scan request.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This fixes an issue where hostapd SET command is used to configure RSN
parameters and the wpa parameter is sent after the other parameters.
Previously, the default case here ended up clearing rsn_pairwise and
wpa_pairwise values and once wpa=2 was finally set, the cipher
configuration had already been lost.
Signed-off-by: Jouni Malinen <j@w1.fi>
Split chown() call in wpa_ctrl_open() and wpa_ctrl_open2() to allow the
group id to be set even if the process does not have privileges to
change the owner. This is needed for modules that need to communicate
with wpa_supplicant since without the group change, wpa_supplicant may
not have privileges to send the response to a control interface command.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, station's VHT information elements were copied and passed
regardless of the AP's VHT configuration. As a result, AP with VHT
disabled in configuration could have ended up transmitting packets in
VHT rates though AP is not advertising VHT support. Fix this by copying
the station's VHT capabilities only when AP supports VHT (both hardware
and configuration).
Signed-off-by: Ashok Raj Nagarajan <arnagara@qti.qualcomm.com>
The GTK value received in RSN (WPA2) group rekeying did not use the
wpa_hexdump_key() version of debug printing that is conditional on -K
being included on the command line.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Use shorter variables for storing the attribute lengths and group these
variables together to allow compiler to pack them more efficiently. This
reduces the struct size from 960 bytes to 760 bytes in 64-bit builds.
This reduces stack use in number of functions.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to maintain two concurrent instances of struct
wps_parse_attr in this function. Share a single structure for parsing
both IEs.
Signed-off-by: Jouni Malinen <j@w1.fi>
Reset hapd->num_probereq_cb to 0 on an interface deinit to avoid
unexpected behavior if the same interface is enabled again without fully
freeing the data structures. hostapd_register_probereq_cb() increments
hapd->num_probereq_cb by one and leaves all old values unchanged. In
this deinit+init case, that would result in the first entry in the list
having an uninitialized pointer and the next Probe Request frame
processing would likely cause the process to terminate on segmentation
fault.
This issue could be hit when hostapd was used with WPS enabled (non-zero
wps_state configuration parameter) and control interface command DISABLE
and ENABLE were used.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This is needed to allow new operation to be started after an error
without having to wait for the AP entry to time out.
Signed-off-by: Jouni Malinen <j@w1.fi>
wpa_supplicant_parse_ies() was never supposed to be used as a generic IE
parser, i.e., it is for the specific purpose of parsing EAPOL-Key Key
Data IEs and KDEs. TDLS used this function for parsing generic AP IEs
and while that works, it resulted in confusing "WPA: Unrecognized
EAPOL-Key Key Data IE" debug messages. Clean this up by using
ieee802_11_parse_elems() for the cases where generic IEs are being
parsed.
Signed-off-by: Jouni Malinen <j@w1.fi>
This extends the previous tracking design to add a station entry based
on other management frames than Probe Request frames. For example, this
covers a case where the station is using passive scanning.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new no_auth_if_seen_on=<ifname> parameter can now be used to
configure hostapd to reject authentication from a station that was seen
on another radio.
This can be used with enabled track_sta_max_num configuration on another
interface controlled by the same hostapd process to reject
authentication attempts from a station that has been detected to be
capable of operating on another band, e.g., to try to reduce likelihood
of the station selecting a 2.4 GHz BSS when the AP operates both a 2.4
GHz and 5 GHz BSS concurrently.
Note: Enabling this can cause connectivity issues and increase latency for
connecting with the AP.
Signed-off-by: Jouni Malinen <j@w1.fi>
This allows control interface monitors to get more detailed information
in cases where wpa_supplicant-based SME receives an Authentication frame
with non-zero status code.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new no_probe_resp_if_seen_on=<ifname> parameter can now be used to
configure hostapd to not reply to group-addressed Probe Request from a
station that was seen on another radio.
This can be used with enabled track_sta_max_num configuration on another
interface controlled by the same hostapd process to restrict Probe
Request frame handling from replying to group-addressed Probe Request
frames from a station that has been detected to be capable of operating
on another band, e.g., to try to reduce likelihood of the station
selecting a 2.4 GHz BSS when the AP operates both a 2.4 GHz and 5 GHz
BSS concurrently.
Note: Enabling this can cause connectivity issues and increase latency
for discovering the AP.
Signed-off-by: Jouni Malinen <j@w1.fi>
hostapd can now be configured to track unconnected stations based on
Probe Request frames seen from them. This can be used, e.g., to detect
dualband capable station before they have associated. Such information
could then be used to provide guidance on which colocated BSS to use in
case of a dualband AP that operates concurrently on multiple bands under
the control of a single hostapd process.
Signed-off-by: Jouni Malinen <j@w1.fi>
For now, there is no support for passing extended_capa pointers through
the driver_privsep.c interface from wpa_priv. Avoid leaving bogus
pointers by explicitly clearing these on both wpa_priv and
wpa_supplicant sides.
Signed-off-by: Jouni Malinen <j@w1.fi>
DSSS/CCK rate support in 40 MHz has to be set to 0 for 5 GHz band since
this mechanism is designed only for the 2.4 GHz band. Clear
HT_CAP_INFO_DSSS_CCK40MHZ in ht_capab when the configured mode is
neither 11b nor 11g.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
This adds a new helper function wpa_ctrl_open2() that can be used
instead of wpa_ctrl_open() to override the default client socket
directory. Add optional -s<directory path> argument to hostapd_cli and
wpa_cli to allow the client socket directory to be specified.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
No need to have a common failure handler if it is used from only a
single location and that lcoation does not even need the memory freeing
step.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, the EAP-WSC peer state machine ended up just ignoring an
error and waiting for a new message from the AP. This is not going to
recover the exchange, so simply force the connection to terminate
immediately.
Signed-off-by: Jouni Malinen <j@w1.fi>
The hbp pointer is moved to the next space already earlier in this code
path, so the while loop here did not really do anything.
Signed-off-by: Jouni Malinen <j@w1.fi>
It was possible for wpa_auth_sm_event(WPA_DEAUTH) to be called from
wpa_sm_step() iteration in the case the EAPOL authenticator state
machine ended up requesting the station to be disconnected. This
resulted in unnecessary recursive call to wpa_sm_step(). Avoid this by
using the already running call to process the state change.
It was possible to hit this sequence in the hwsim test case
ap_wpa2_eap_eke_server_oom.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Clearing keyRun here is not specified in IEEE Std 802.1X-2004, but it
looks like this would be logical thing to do here since the EAPOL-Key
exchange is not possible in this state. It is possible to get here on
disconnection event without advancing to the AUTHENTICATING state to
clear keyRun before the IEEE 802.11 RSN authenticator state machine runs
and that may advance from AUTHENTICATION2 to INITPMK if keyRun = TRUE
has been left from the last association. This can be avoided by clearing
keyRun here.
It was possible to hit this corner case in the hwsim test case
ap_wpa2_eap_eke_server_oom in the case getKey operation was forced to
fail memory allocation. The following association resulted in the
station getting disconnected when entering INITPMK without going through
EAP authentication.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows an empty nested list (i.e., no MAC addresses) to be included
in the NL80211_CMD_SET_MAC_ACL message unlike with
nla_nest_start()/nla_nest_end() where the current libnl implementation
removes the "empty" attribute and causes cfg80211 to reject the command.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
