Add support for drivers that support full AP client state, i.e., can
handle adding stations that are not associated yet. For such drivers,
add a station after processing the authentication request, instead of
adding it in the association response callback.
Doing so is beneficial in cases where the driver cannot handle the add
station request, in which case it is useless to perform the complete
connection establishment.
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Remove the fallback dependency on os_random() from the code that gets a
valid DFS channel. This is exceptionally unlikely to ever be called as
the call to os_get_random() is unlikely to fail. The intention is to
facilitate future removal of os_random() as it uses a low quality PRNG.
Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
Remove the fallback dependency on os_random() when generating a WPS pin.
This is exceptionally unlikely to ever be called as the call to
os_get_random() is unlikely to fail. The intention is to facilitate
future removal of os_random() as it uses a low quality PRNG.
Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
Do not use the system clock or os_random() that uses a low quality PRNG
as part of the pseudo-random challenge in auth_shared_key(). The
construction can be improved upon by replacing it with a call to
os_get_random(), which uses a high quality PRNG.
Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
Previously, only mesh Action frames from BLOCKED STA were dropped.
Extend that to drop Authentication frames as well.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
The SAE PMKID is calculated with IEEE Std 802.11-2012 11.3.5.4, but the
PMKID was re-calculated with 11.6.1.3 and saved into PMKSA cache. Fix
this to save the PMKID calculated with 11.3.5.4 into the PMKSA cache.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Shuffle includes above system ones so to fix a compile issue
on NetBSD where the if_type #define from <net/if.h>
conflicts with the wpa_driver_if_type enum.
Signed-off-by: Roy Marples <roy@marples.name>
This allows the stations to be assigned to their own vif. It does not
need dynamic_vlan to be set. Make hostapd call ap_sta_set_vlan even if
!vlan_desc.notempty, so vlan_id can be assigned regardless.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
This makes vlan_newlink() and vlan_dellink() add tagged VLANs to AP_VLAN
interfaces as given by struct vlan_description.
hostapd_vlan_if_remove() is done in vlan_dellink() as tagged interfaces
need to be removed before the interface can be deleted and a DELLINK
message can be generated.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
To prepare for adding tagged VLAN support in vlan_init.c, vlan_newlink()
and vlan_dellink() are split into multiple functions. This reduces
indention and eases adding tagged VLANs as well.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
1. Add tagged VLAN to struct vlan_description
(compile limited number of tagged VLANs per description)
For k tagged VLANs, the first k entries in vlan_description.tagged
are used. They are sorted in ascending order. All other entries are
zero. This way os_memcmp() can find identical configurations.
2. Let tagged VLANs be parsed from RADIUS Access-Accept
3. Print VLAN %d+ with %d=untagged VID if tagged VLANs are set
4. Select an unused vlan_id > 4096 for new tagged VLAN configurations
5. Add EGRESS_VLAN RADIUS attribute parsing also for untagged VLANs
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Separate uplink configuration (IEEE 802.1q VID) and grouping of stations
into AP_VLAN interfaces.
The int vlan_id will continue to identify the AP_VLAN interface the
station should be assigned to. Each AP_VLAN interface corresponds to an
instance of struct hostapd_vlan that is uniquely identified by int
vlan_id within an BSS.
New: Each station and struct hostapd_vlan holds a struct
vlan_description vlan_desc member that describes the uplink
configuration requested. Currently this is just an int untagged IEEE
802.1q VID, but can be extended to tagged VLANs and other settings
easily.
When the station was about to be assigned its vlan_id, vlan_desc and
vlan_id will now be set simultaneously by ap_sta_set_vlan(). So
sta->vlan_id can still be tested for whether the station needs to be
moved to an AP_VLAN interface.
To ease addition of tagged VLAN support, a member notempty is added to
struct vlan_description. Is is set to 1 if an untagged or tagged VLAN
assignment is requested and needs to be validated. The inverted form
allows os_zalloc() to initialize an empty description.
Though not depended on by the code, vlan_id assignment ensures:
* vlan_id = 0 will continue to mean no AP_VLAN interface
* vlan_id < 4096 will continue to mean vlan_id = untagged vlan id
with no per_sta_vif and no extra tagged vlan.
* vlan_id > 4096 will be used for per_sta_vif and/or tagged vlans.
This way struct wpa_group and drivers API do not need to be changed in
order to implement tagged VLANs or per_sta_vif support.
DYNAMIC_VLAN_* will refer to (struct vlan_description).notempty only,
thus grouping of the stations for per_sta_vif can be used with
DYNAMIC_VLAN_DISABLED, but not with CONFIG_NO_VLAN, as struct
hostapd_vlan is still used to manage AP_VLAN interfaces.
MAX_VLAN_ID will be checked in hostapd_vlan_valid and during setup of
VLAN interfaces and refer to IEEE 802.1q VID. VLAN_ID_WILDCARD will
continue to refer to int vlan_id.
Renaming vlan_id to vlan_desc when type changed from int to struct
vlan_description was avoided when vlan_id was also used in a way that
did not depend on its type (for example, when passed to another
function).
Output of "VLAN ID %d" continues to refer to int vlan_id, while "VLAN
%d" will refer to untagged IEEE 802.1q VID.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
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 new "pbss" argument to network block. The argument is used
in the following scenarios:
1. When network has mode=2 (AP), when pbss flag is set will start
as a PCP instead of an AP.
2. When network has mode=0 (station), when pbss flag is set will
connect to PCP instead of AP.
The function wpa_scan_res_match() was modified to match BSS according to
the pbss flag in the network block (wpa_ssid structure). When pbss flag
is set it will match only PCPs, and when it is clear it will match only
APs.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
When a mesh point reconnects by starting from Authentication frame
sequence, the plink count was not decremented from its last connection.
This resulted in leaking peer link count and causing wpa_supplicant to
reject the connection after max_peer_links (default: 99) reconnects.
This was reproduced by pre-configuring 2 mesh points with mesh
credentials. Boot both mesh points and make sure they connect to each
other. Then in a loop reboot one of the mesh points after it
successfully connects while leaving the other mesh point up and running.
After 99 iterations the supplicant on mesh point that is not rebooting
will reject the connection request from the other mesh point.
Fix this by decrementing num_plinks when freeing a STA entry that is
still in PLINK_ESTAB state.
Signed-off-by: Srinivasa Duvvuri <sduvvuri@chromium.org>
There is no need to maintain three copies of this functionality even if
it is currently implemented as a single function call.
Signed-off-by: Jouni Malinen <j@w1.fi>
Rework the Acct-Session-Id and Acct-Multi-Session-Id implementation to
give better global and temporal uniqueness. Previously, only 32-bits of
the Acct-Session-Id would contain random data, the other 32-bits would
be incremented. Previously, the Acct-Multi-Session-Id would not use
random data. Switch from two u32 variables to a single u64 for the
Acct-Session-Id and Acct-Multi-Session-Id. Do not increment, this serves
no legitimate purpose. Exclusively use os_get_random() to get quality
random numbers, do not use or mix in the time. Inherently take a
dependency on /dev/urandom working properly therefore. Remove the global
Acct-Session-Id and Acct-Multi-Session-Id values that serve no
legitimate purpose.
Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
These can get allocated within eapol_auth_alloc(), so it is more logical
to free them in eapol_auth_free() instead of ieee802_1x_free_station()
that ends up calling eapol_auth_free().
Signed-off-by: Jouni Malinen <j@w1.fi>
Event-Timestamp should be sent for all Accounting-Request packets and
only after the system clock has a sane value, not where there's a value
close to the Unix time epoch.
Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
Calculate the required length needed for the extra ANQP elements added
to GAS response buffer instead of using fixed size and truncating the
response if there was not sufficient space.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Acct-Authentic is used to indicate how the user was authenticated and as
such, should not be sent in Accounting-On and Accounting-Off.
Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
Per RFC 2866, 5.10, it is invalid to send Acct-Terminate-Cause in
Accounting-On and Accounting-Off (this is included only when
Acct-Status-Type is set to Stop).
Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
Ensure that if it is not possible to configure an allowed 20 MHz
channel pair, hostapd falls back to a single 20 MHz channel.
Signed-off-by: Eduardo Abinader <eabinader@ocedo.com>
Number of deployed 80 MHz capable VHT stations that do not support 80+80
and 160 MHz bandwidths seem to misbehave when trying to connect to an AP
that advertises 80+80 or 160 MHz channel bandwidth in the VHT Operation
element. To avoid such issues with deployed devices, modify the design
based on newly proposed IEEE 802.11 standard changes.
This allows poorly implemented VHT 80 MHz stations to connect with the
AP in 80 MHz mode. 80+80 and 160 MHz capable stations need to support
the new workaround mechanism to allow full bandwidth to be used.
However, there are more or less no impacted station with 80+80/160
capability deployed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This makes it easier to follow a debug log from a hostapd process that
manages multiple interfaces.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The ap_sta_deauth_cb and ap_sta_disassoc_cb eloop timeouts are used to
clear a disconnecting STA from the kernel driver if the STA did not ACK
the Deauthentication/Disassociation frame from the AP within two
seconds. However, it was possible for a STA to not ACK such a frame,
e.g., when the disconnection happened due to hostapd pruning old
associations from other BSSes and the STA was not on the old channel
anymore. If that same STA then started a new authentication/association
with the BSS, the two second timeout could trigger during this new
association and result in the STA entry getting removed from the kernel.
Fix this by canceling these eloop timeouts when receiving an indication
of a new authentication or association.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
n_chans can have only values 1, 2, or 4 in this function, so the -1 case
could never be reached. Remove the unreachable case to get rid of static
analyzer warnings.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
chan is set to the result of pointer arithmetic (pointer to an entry in
an array) that can never be NULL. As such, there is no need to check for
it to be non-NULL before deference. Remove this check to avoid
complaints from static analyzers.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Offloading of ACS to the driver changed the design a bit in a way that
iface->current_mode could actually be NULL when the offloaded ACS
mechanism supports band selection in addition to channel selection. This
resulted in a combination that is too complex for static analyzers to
notice. While acs_init() can be called with iface->current_mode == NULL
that is only in the case where WPA_DRIVER_FLAGS_ACS_OFFLOAD is in use.
In other words, the actual ACS functions like acs_cleanup() that would
dereference iface->current_mode are not used in such a case.
Get rid of static analyzer warnings by explicitly checking
iface->current_mode in acs_init() for the case where ACS offloading is
not used.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If P2P support is included in wpa_supplicant build (CONFIG_P2P=y), but
P2P functionality is explicitly disabled (e.g., "P2P_SET disabled 1"),
couple of AP management frame processing steps did not check against
hapd->p2p_group being NULL and could end up dereferencing a NULL pointer
if a Probe Request frame or (Re)Association Request frame was received
with a P2P IE in it. Fix this by skipping these steps if hapd->p2p_group
is NULL.
Signed-off-by: Jouni Malinen <j@w1.fi>
It was possible for the Registrar code to generate a Credential with
auth type WPAPSK (i.e., WPA v1) with encr type AES if the Enrollee
claimed support for WPAPSK and not WPA2PSK while the AP was configured
in mixed mode WPAPSK+WPA2PSK regardless of how wpa_pairwise (vs.
rsn_pairwise) was set since encr type was selected from the union of
wpa_pairwise and rsn_pairwise. This could result in the Enrollee
receiving a Credential that it could then not use with the AP.
Fix this by masking the encryption types separately on AP based on the
wpa_pairwise/rsn_pairwise configuration. In the example case described
above, the Credential would get auth=WPAPSK encr=TKIP instead of
auth=WPAPSK encr=AES.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes it somewhat easier for the station to be able to receive and
process the encrypted WNM-Notification frames that the AP previously
sentt immediately after receiving EAPOL-Key msg 4/4. While the station
is supposed to have the TK configured for receive before sending out
EAPOL-Key msg 4/4, not many actual implementations do that. As such,
there is a race condition in being able to configure the key at the
station and the AP sending out the first encrypted frame after EAPOL-Key
4/4. The extra 100 ms time here makes it more likely for the station to
have managed to configure the key in time.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Since hostapd supports ACS now, let's enable its support in
wpa_supplicant as well when starting AP mode.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
[u.oelmann@pengutronix.de: rebased series from hostap_2_1~944 to master]
[u.oelmann@pengutronix.de: adjusted added text in defconfig]
Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Let's reuse hostapd code for such handling. This will be useful to get
ACS support into wpa_supplicant where this one needs to handle the
survey event so it fills in the result ACS subsystem will require.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
[u.oelmann@pengutronix.de: rebased series from hostap_2_1~944 to master]
Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Commit 986de33d5c ('Convert remaining SSID
routines from char* to u8*') started using wpa_ssid_txt() to print out
the SSID for the Called-Station-Id attribute in RADIUS messages. This
was further modified by commit 6bc1f95613
('Use printf escaping in SSID-to-printable-string conversion') to use
printf escaping (though, even without this, wpa_ssid_txt() would have
masked characters).
This is not desired for Called-Station-Id attribute. While it is defined
as a "String", RFC 2865 indicates that "a robust implementation SHOULD
support the field as undistinguished octets.".
Copy the SSID as an array of arbitrary octets into Called-Station-Id to
avoid any kind of masking or escaping behavior. This goes a step further
from the initial implementation by allowing even the possible (but
unlikely in practical use cases) 0x00 octet in the middle of an SSID.
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds a new hostapd configuration parameter
ocsp_stapling_response_multi that can be used similarly to the existing
ocsp_stapling_response, but for the purpose of providing multiple cached
OCSP responses. This commit adds only the configuration parameter, but
does not yet add support for this mechanism with any of the supported
TLS implementations.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, the five second timeout was added at the beginning of the
full GAS query and it was not replenished during fragmented exchanges.
This could result in timing out a query if it takes significant time to
go through the possibly multiple fragments and long comeback delay.
Signed-off-by: Jouni Malinen <j@w1.fi>
This FTIE needs to be an exact copy of the one in (Re)Association
Response frame. Copy the stored element rather than building a new copy
that would not have the correct MIC value. This is needed to fix PTK
rekeying after FT protocol run.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The FTIE from (Re)Association Response frame was copied before
calculating the MIC. This resulted in incorrect value being used when
comparing the EAPOL-Key msg 2/4 value in case PTK rekeying was used
after FT protocol run. Fix this by storing the element after the MIC
field has been filled in.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
wpa_insert_pmkid() did not support cases where the original RSN IE
included any PMKIDs. That case can happen when PTK rekeying through
4-way handshake is used after FT protocol run. Such a 4-way handshake
used to fail with wpa_supplicant being unable to build the EAPOL-Key msg
2/4.
Fix this by extending wpa_insert_pmkid() to support removal of the old
PMKIDs, if needed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When an AP interface it created, it is also setup and subscribes
for management frames etc. However, when the interface is added by
wpa_supplicant, setting up for AP operations is redundant because
it will be done by wpa_supplicant on wpa_drv_init() when setting
the interface mode to AP.
In addition, it may cause wpa_supplicant to fail initializing the
interface as it will try to subscribe for management frames on this
interface but the interface is already registered.
Change this, so when adding an AP interface, make setting up the AP
optional, and use it only when the interface is added by hostapd but not
when it is added by wpa_supplicant.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
When an AP is started on the 5.2 GHz band with 40 MHz bandwidth, a
scan is issued in order to handle 20/40 MHz coexistence. However,
the scan is issued even if iface->conf->no_pri_sec_switch is set,
which is redundant.
Fix this by checking iface->conf->no_pri_sec_switch before starting
the scan.
Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
The EAPOL AUTH_PAE state machine was left in incomplete state at the
completion of FT protocol. Set portValid = TRUE to allow the state
machine to proceed from AUTHENTICATING to AUTHENTICATED state, so that a
new EAPOL reauthentication can be triggered.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Now hostapd will use station MAC-based permissions according to the
macaddr_acl policy also for drivers which use AP SME offload, but do not
support NL80211_CMD_SET_MAC_ACL for offloading MAC ACL processing. It
should be noted that in this type of case the association goes through
and the station gets disconnected immediately after that.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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 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>
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>
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>
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>
This new hostapd configuration parameter can be used to enable TLS
session resumption. This commit adds the configuration parameter through
the configuration system and RADIUS/EAPOL/EAP server components. The
actual changes to enable session caching will be addressed in followup
commits.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 6959145b86 ('FST: Integration into
hostapd') introduced this duplicated call due to an incorrect merge
conflict resolution in ap_sta_set_authorized(). An earlier commit
61fc90483f ('P2P: Handle improper WPS
termination on GO during group formation') had moved this call to an
earlier location in the function and there is no point in re-introducing
another copy of the call at the end of the function.
Signed-off-by: Jouni Malinen <j@w1.fi>
Couple of the for-each-interface loops used incorrect return value when
skipping over non-WPS interfaces. This could result in skipping some WPS
interfaces in the loop and returning error. Setting AP PIN did not check
for WPS being enabled at all and trigger a NULL pointer dereference if
non-WPS interface was enabled.
Signed-off-by: Jouni Malinen <j@w1.fi>
This allows the new own_ie_override=<hexdump> configuration parameter to
be used to replace the normally generated WPA/RSN IE(s) for testing
purposes in CONFIG_TESTING_OPTIONS=y builds.
Signed-off-by: Jouni Malinen <j@w1.fi>
The PMKIDCount, PMKID List, and Group Management Cipher Suite fields are
optional to include in the RSNE in cases where these would not have
values that are different from the default values. In practice,
PMKIDCount is always 0 in Beacon and Probe Response frames, so the only
field of these that could have a non-default value is Group Management
Cipher Suite. When BIP is used, that field is not needed either due to
BIP being the default cipher when PMF is enabled.
Remove these fields from RSNE when BIP is used to save six octets in
Beacon and Probe Response frames. In addition to reduced frame length,
this is a workaround for interoperability issues with iOS 8.4 in cases
where FT and PMF are enabled. iOS seems to be rejecting EAPOL-Key msg
3/4 during FT initial mobility domain association if the RSNE includes
the PMKIDCount field.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This is similar to the earlier commit
b363121a20 ('WPS: Reject invalid
credential more cleanly'), but for the AP cases where AP settings are
being replaced. Previously, the new settings were taken into use even if
the invalid PSK/passphrase had to be removed. Now, the settings are
rejected with such an invalid configuration.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This buffer is owned by the FST module, so mark it const in the
set_ies() callback to make it clearer which component is responsible for
modifying and freeing this.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The mesh SAE auth often fails with master branch. By bisect I found
commit eb5fee0bf5 ('SAE: Add side-channel
protection to PWE derivation with ECC') causes this issue. This does not
mean the commit has a bug. This is just a CPU resource issue.
After the commit, sae_derive_pwe_ecc() spends 101(msec) on my PC (Intel
Atom N270 1.6GHz). But dot11RSNASAERetransPeriod is 40(msec). So
auth_sae_retransmit_timer() is always called and it can causes
continuous frame exchanges. Before the commit, it was 23(msec).
On the IEEE 802.11 spec, the default value of dot11RSNASAERetransPeriod
is defined as 40(msec). But it looks short because generally mesh
functionality will be used on low spec devices. Indeed Raspberry Pi B+
(ARM ARM1176JZF-S 700MHz) requires 287(msec) for new
sae_derive_pwe_ecc().
So this patch makes the default to 1000(msec) and makes it configurable.
This issue does not occur on infrastructure SAE because the
dot11RSNASAERetransPeriod is not used on it.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
The new CONFIG_NO_RC4=y build option can be used to remove all internal
hostapd and wpa_supplicant uses of RC4. It should be noted that external
uses (e.g., within a TLS library) do not get disabled when doing this.
This removes capability of supporting WPA/TKIP, dynamic WEP keys with
IEEE 802.1X, WEP shared key authentication, and MSCHAPv2 password
changes.
Signed-off-by: Jouni Malinen <j@w1.fi>
