Commit graph

159 commits

Author SHA1 Message Date
Jouni Malinen
838180877f Use PMK_LEN macro instead of hardcoded value 64 (= 2 * 32)
Signed-off-by: Jouni Malinen <j@w1.fi>
2020-02-15 17:11:18 +02:00
Jouni Malinen
f5da5810c9 Check pbkdf2_sha1() result when generating PSK from PSK file
This function can fail in theory, so check the return value.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-02-15 17:10:08 +02:00
Jouni Malinen
641d79f165 SAE: Special test mode sae_pwe=3 for looping with password identifier
The new sae_pwe=3 mode can be used to test non-compliant behavior with
SAE Password Identifiers. This can be used to force use of
hunting-and-pecking loop for PWE derivation when Password Identifier is
used. This is not allowed by the standard and as such, this
functionality is aimed at compliance testing.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-02-10 05:13:13 +02:00
Jouni Malinen
e36a5894d0 SAE: Use H2E whenever Password Identifier is used
IEEE P802.11-REVmd was modified to require H2E to be used whenever
Password Identifier is used with SAE.

See this document for more details of the approved changes:
https://mentor.ieee.org/802.11/dcn/19/11-19-2154-02-000m-sae-anti-clogging-token.docx

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-01-21 13:13:56 +02:00
Bilal Hatipoglu
3d41dd7c50 WPS: Add application extension data to WPS IE
Application Extension attribute is defined in WSC tech spec v2.07 page
104. Allow hostapd to be configured to add this extension into WPS IE in
Beacon and Probe Response frames. The implementation is very similar to
vendor extension.

A new optional entry called "wps_application_ext" is added to hostapd
config file to configure this. It enodes the payload of the Application
Extension attribute in hexdump format.

Signed-off-by: Veli Demirel <veli.demirel@airties.com>
Signed-off-by: Bilal Hatipoglu <bilal.hatipoglu@airties.com>
2020-01-04 23:39:30 +02:00
Jouni Malinen
8d84c75f7c Allow testing override for GTK/IGTK RSC from AP to STA
The new hostapd gtk_rsc_override and igtk_rsc_override configuration
parameters can be used to set an override value for the RSC that the AP
advertises for STAs for GTK/IGTK. The contents of those parameters is a
hexdump of the RSC in little endian byte order.

This functionality is available only in CONFIG_TESTING_OPTIONS=y builds.
This can be used to verify that stations implement initial RSC
configuration correctly for GTK/ and IGTK.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-01-04 13:05:26 +02:00
Ankita Bajaj
59bb72642a Allow ACS channel list to be configured as frequencies (in MHz)
The channel numbers are duplicated between 2.4 GHz / 5 GHz bands and 6
GHz band. Hence, add support to configure a list of frequencies to ACS
(freqlist) instead of a list of channel numbers (chanlist). Also, both 5
GHz and 6 GHz channels are referred by HOSTAPD_MODE_IEEE80211A. The 6
GHz channels alone can be configured by using both mode and frequency
list.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-12-20 13:19:52 +02:00
Jouni Malinen
f2c4b44b40 SAE H2E: RSNXE override in EAPOL-Key msg 3/4
This new hostapd configuration parameter rsnxe_override_eapol=<hexdump>
can be used to override RSNXE value in EAPOL-Key msg 3/4 for testing
purposes.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-12-07 17:32:17 +02:00
Jouni Malinen
9f50538e13 SAE H2E: Do not use sae_h2e param in AP mode if SAE is disabled
Previously, nonzero sae_h2e parameter values were used to perform SAE
H2E specific operations (deriving PT, adding RSNXE, adding H2E-only BSS
membership selector) in AP mode even if SAE was not enabled for the
network. This could result in unexpected behavior if sae_pwe=1 or
sae_pwe=2 were set in the configuration. Fix this by making the SAE
operations conditional on SAE being actually enabled.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-11-29 00:07:57 +02:00
Jouni Malinen
43b20b4370 SAE: Derive H2E PT in AP when starting the AP
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-10-15 15:39:22 +03:00
Jouni Malinen
5a5639b068 DPP: Allow name and mudurl to be configured for Config Request
The new hostapd and wpa_supplicant configuration parameters dpp_name and
dpp_mud_url can now be used to set a specific name and MUD URL for the
Enrollee to use in the Configuration Request. dpp_name replaces the
previously hardcoded "Test" string (which is still the default if an
explicit configuration entry is not included). dpp_mud_url can
optionally be used to add a MUD URL to describe the Enrollee device.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-09-19 00:21:47 +03:00
Jouni Malinen
7d2ed8bae8 Remove CONFIG_IEEE80211W build parameter
Hardcode this to be defined and remove the separate build options for
PMF since this functionality is needed with large number of newer
protocol extensions and is also something that should be enabled in all
WPA2/WPA3 networks.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-09-08 17:33:40 +03:00
Jouni Malinen
8d76e0ad7b EAP server: Configurable maximum number of authentication message rounds
Allow the previously hardcoded maximum numbers of EAP message rounds to
be configured in hostapd EAP server. This can be used, e.g., to increase
the default limits if very large X.509 certificates are used for EAP
authentication.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-09-01 17:19:35 +03:00
Jouni Malinen
6bb11c7a40 EAP-SIM/AKA server: Allow pseudonym/fast reauth to be disabled
The new hostapd configuration option eap_sim_id can now be used to
disable use of pseudonym and/or fast reauthentication with EAP-SIM,
EAP-AKA, and EAP-AKA'.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-08-01 10:36:11 +03:00
Terry Burton
f4111ff3d1 Extra RADIUS request attributes from SQLite
Add an SQLite table for defining per station MAC address version of
radius_auth_req_attr/radius_acct_req_attr information. Create the
necessary table and index where this doesn't exist. Select attributes
from the table keyed by station MAC address and request type (auth or
acct), parse and apply to a RADIUS message.

Add radius_req_attr_sqlite hostapd config option for SQLite database
file. Open/close RADIUS attribute database for a lifetime of a BSS and
invoke functions to add extra attributes during RADIUS auth and
accounting request generation.

Signed-off-by: Terry Burton <tez@terryburton.co.uk>
2019-07-30 19:58:09 +03:00
Terry Burton
74707def8f Move hostapd_parse_radius_attr() into ap_config.c
We will want to parse RADIUS attributes in config file format when
retrieving them from an SQLite database.

Signed-off-by: Terry Burton <tez@terryburton.co.uk>
2019-07-30 19:42:48 +03:00
Jouni Malinen
e2722bf81d OpenSSL: Allow two server certificates/keys to be configured on server
hostapd EAP server can now be configured with two separate server
certificates/keys to enable parallel operations using both RSA and ECC
public keys. The server will pick which one to use based on the client
preferences for the cipher suite (in the TLS ClientHello message). It
should be noted that number of deployed EAP peer implementations do not
filter out the cipher suite list based on their local configuration and
as such, configuration of alternative types of certificates on the
server may result in interoperability issues.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-07-12 18:13:10 +03:00
Andrei Otcheretianski
a00ace9fd7 AP: Simplify "i" definition in hostapd_config_free_bss()
Declare the variable only once and reuse it instead of openning
unneeded scopes.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
2019-06-23 18:03:51 +03:00
leiwei
29c832d0ea macsec: Add configuration parameters for hostapd
Signed-off-by: leiwei <leiwei@codeaurora.org>
2019-06-03 20:27:44 +03:00
John Crispin
4f3f33804a HE: Make the basic NSS/MCS configurable
Add a config option to allow setting a custom Basic NSS/MCS set. As a
default we use single stream HE-MCS 0-7.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
2019-05-27 17:45:04 +03:00
Toke Høiland-Jørgensen
ef7217518b hostapd: Add airtime policy configuration support
This adds support to hostapd for configuring airtime policy settings for
stations as they connect to the access point. This is the userspace
component of the airtime policy enforcement system PoliFi described in
this paper: https://arxiv.org/abs/1902.03439

The Linux kernel part has been merged into mac80211 for the 5.1 dev
cycle.

The configuration mechanism has three modes: Static, dynamic and limit.
In static mode, weights can be set in the configuration file for
individual MAC addresses, which will be applied when the configured
stations connect.

In dynamic mode, weights are instead set per BSS, which will be scaled
by the number of active stations on that BSS, achieving the desired
aggregate weighing between the configured BSSes. Limit mode works like
dynamic mode, except that any BSS *not* marked as 'limited' is allowed
to exceed its configured share if a per-station fairness share would
assign more airtime to that BSS. See the paper for details on these
modes.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2019-05-02 14:57:43 +03:00
John Crispin
83f30fabe3 HE: Disable TXOP duration-based RTS if he_rts_threshold is not set
IEEE P802.11ax/D4.0 9.4.2.243 "HE Operation element" indicates that the
special value 1023 in the TXOP Duration RTS Threshold field is used to
indicate that TXOP duration-based RTS is disabled. Use that value as the
default instead of the previously used value 0 which would really mean
threshold of 0 usec. Furthermore, the previous implementation did not
allow values larger than 255 to be used for this field while the field
is actually 10 bits in size.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
2019-04-25 11:43:59 +03:00
Jouni Malinen
e00f780e2b DPP2: hostapd as TCP Relay
The new hostapd configuration parameter dpp_controller can now be used
with the following subparameter values: ipaddr=<IP address>
pkhash=<hexdump>. This adds a new Controller into the configuration
(i.e., more than one can be configured) and all incoming DPP exchanges
that match the specified Controller public key hash are relayed to the
particular Controller.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-22 21:08:59 +03:00
Jouni Malinen
bf0021ede3 Allow fragmentation/RTS threshold to be disabled explicitly
hostapd configuration parameters fragm_threshold and rts_threshold were
documented to disable the threshold with value -1 and not change driver
configuration if the parameter is not included. However, -1 was mapped
into not changing the driver value, so the explicit disabling part did
not work.

Replace the default values for these to be -2 so that explicitly set
configuration value -1 can be distinguished from the case of not
including the parameter. Map the -1 value to a driver request to disable
the threshold. Ignore any error from this operation just in case to
avoid breaking functionality should some drivers not accept the (u32) -1
value as a threshold value request to disable the mechanism.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-12 17:15:08 +02:00
Jared Bents
841205a1ce OpenSSL: Add 'check_cert_subject' support for TLS server
This patch added 'check_cert_subject' support to match the value of
every field against the DN of the subject in the client certificate. If
the values do not match, the certificate verification will fail and will
reject the user.

This option allows hostapd to match every individual field in the right
order, also allow '*' character as a wildcard (e.g OU=Development*).

Note: hostapd will match string up to 'wildcard' against the DN of the
subject in the client certificate for every individual field.

Signed-off-by: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>
Signed-off-by: Jared Bents <jared.bents@rockwellcollins.com>
Signed-off-by: Jouni Malinen <j@w1.fi>
2019-03-11 14:09:45 +02:00
Davina Lu
66819b07b5 hostapd: Support Multi-AP backhaul STA onboarding with WPS
The Wi-Fi Alliance Multi-AP Specification v1.0 allows onboarding of a
backhaul STA through WPS. To enable this, the WPS Registrar offers a
different set of credentials (backhaul credentials instead of fronthaul
credentials) when the Multi-AP subelement is present in the WFA vendor
extension element of the WSC M1 message.

Add new configuration options to specify the backhaul credentials for
the hostapd internal registrar: multi_ap_backhaul_ssid,
multi_ap_backhaul_wpa_psk, multi_ap_backhaul_wpa_passphrase. These are
only relevant for a fronthaul SSID, i.e., where multi_ap is set to 2 or
3. When these options are set, pass the backhaul credentials instead of
the normal credentials when the Multi-AP subelement is present.

Ignore the Multi-AP subelement if the backhaul config options are not
set. Note that for an SSID which is fronthaul and backhaul at the same
time (i.e., multi_ap == 3), this results in the correct credentials
being sent anyway.

The security to be used for the backaul BSS is fixed to WPA2PSK. The
Multi-AP Specification only allows Open and WPA2PSK networks to be
configured. Although not stated explicitly, the backhaul link is
intended to be always encrypted, hence WPA2PSK.

To build the credentials, the credential-building code is essentially
copied and simplified. Indeed, the backhaul credentials are always
WPA2PSK and never use per-device PSK. All the options set for the
fronthaul BSS WPS are simply ignored.

Signed-off-by: Davina Lu <ylu@quantenna.com>
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Marianna Carrera <marianna.carrera.so@quantenna.com>
2019-02-18 22:35:41 +02:00
Jouni Malinen
2fae58fdc1 Fix wpa_psk_file parser error case handling
str_token() can return NULL for the name if the remaining token contains
only the delimiter. Fix this to avoid NULL pointer dereference with a
corner case of an invalid value used in the configuration.

Fixes: ec5c39a557 ("AP: Allow identifying which passphrase station used with wpa_psk_file")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-02-18 18:41:32 +02:00
Jouni Malinen
dbfa691df4 VLAN assignment based on used WPA/WPA2 passphrase/PSK
Extend wpa_psk_file to allow an optional VLAN ID to be specified with
"vlanid=<VLAN ID>" prefix on the line. If VLAN ID is specified and the
particular wpa_psk_file entry is used for a station, that station is
bound to the specified VLAN. This can be used to operate a single
WPA2-Personal BSS with multiple VLANs based on the used passphrase/PSK.
This is similar to the WPA2-Enterprise case where the RADIUS server can
assign stations to different VLANs.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-02-14 13:36:54 +02:00
Michal Kazior
ec5c39a557 AP: Allow identifying which passphrase station used with wpa_psk_file
It is now possible to optionally specify keyid for
each wpa_psk_file entry:

 keyid=something 00:00:00:00:00:00 secretpassphrase

When station connects and the passphrase it used
has an associated keyid it will be appended to the
AP-STA-CONNECTED event string:

 wlan0: AP-STA-CONNECTED 00:36:76:21:dc:7b keyid=something

It's also possible to retrieve it through the control interface:

 $ hostapd_cli all_sta
 Selected interface 'ap0'
 00:36:76:21:dc:7b
 ...
 keyid=something

New hostapd is able to read old wpa_psk_file. However, old hostapd will
not be able to read the new wpa_psk_file if it includes keyids.

Signed-off-by: Michal Kazior <michal@plume.com>
2019-01-26 17:52:04 +02:00
Jouni Malinen
42d308635f SAE: Advertise Password Identifier use
Support the new Extended Capabilities field bits 81 and 82 to indicate
whether SAe Password Identifiers are in use.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-01-24 00:20:49 +02:00
Beni Lev
076f1ea1d9 OCE: Add RSSI based association rejection support (AP)
An AP might reject a STA association request due to low RSSI. In such
case, the AP informs the STA the desired RSSI improvement and a retry
timeout. The STA might retry to associate even if the RSSI hasn't
improved if the retry timeout expired.

Signed-off-by: Beni Lev <beni.lev@intel.com>
2019-01-01 18:18:50 +02:00
Sam Voss
dd5d325b0a hostapd: Add configuration option check_crl_strict
Add the ability to ignore time-based CRL errors from OpenSSL by
specifying a new configuration parameter, check_crl_strict=0.

This causes the following:

- This setting does nothing when CRL checking is not enabled.

- When CRL is enabled, "strict mode" will cause CRL time errors to not
  be ignored and will continue behaving as it currently does.

- When CRL is enabled, disabling strict mode will cause CRL time
  errors to be ignored and will allow connections.

By default, check_crl_strict is set to 1, or strict mode, to keep
current functionality.

Signed-off-by: Sam Voss <sam.voss@rockwellcollins.com>
2018-12-31 12:51:51 +02:00
Hristo Venev
d01203cafc hostapd: Add openssl_ecdh_curves configuration parameter
This makes it possible to use ECDSA certificates with EAP-TLS/TTLS/etc.
It should be noted that when using Suite B, different mechanism is used
to specify the allowed ECDH curves and this new parameter must not be
used in such cases.

Signed-off-by: Hristo Venev <hristo@venev.name>
2018-12-30 17:27:34 +02:00
Mathy Vanhoef
9c55fdb023 OCV: Add hostapd config parameter
Add hostapd.conf parameter ocv to disable or enable Operating Channel
Verification (OCV) support.

Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
2018-12-16 20:31:21 +02:00
Jouni Malinen
7bd8c76a4f HS 2.0 server: RADIUS server support for SIM provisioning
This adds support for hostapd-as-RADIUS-authentication-server to request
subscription remediation for SIM-based credentials. The new hostapd.conf
parameter hs20_sim_provisioning_url is used to set the URL prefix for
the remediation server for SIM provisioning. The random
hotspot2dot0-mobile-identifier-hash value will be added to the end of
this URL prefix and the same value is stored in a new SQLite database
table sim_provisioning for the subscription server implementation to
use.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-12-15 18:01:38 +02:00
Jouni Malinen
6ae04d7b34 HS 2.0: Allow Hotspot 2.0 release number to be configured
The new hostapd configuration parameter hs20_release can be used to
configure the AP to advertise a specific Hotspot 2.0 release number
instead of the latest supported release. This is mainly for testing
purposes.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-12-08 14:06:54 +02:00
Jouni Malinen
678d8410af Move send_probe_response parameter to BSS specific items
This can be more convenient for testing Multiple BSSID functionality.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-12-07 15:03:11 +02:00
Jouni Malinen
cad810a98f HS 2.0: OSU Provider NAI List advertisement
Extend hostapd to allow the new OSU Provider NAI List ANQP-element to be
advertised in addition to the previously used OSU Providers list
ANQP-element. The new osu_nai2 configurator parameter option is used to
specify the OSU_NAI value for the shared BSS (Single SSID) case while
osu_nai remains to be used for the separate OSU BSS.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-10-05 20:49:42 +03:00
Dan Harkins
d52ead3db7 EAP-pwd server: Add support for salted password databases
These changes add support for salted password databases to EAP-pwd per
RFC 8146. This commits introduces the framework for enabling this and
the salting mechanisms based on SHA-1, SHA256, and SHA512 hash
algorithms.

Signed-off-by: Dan Harkins <dharkins@lounge.org>
2018-05-28 22:08:51 +03:00
Jouni Malinen
9be19d0b9c SAE: Add support for using the optional Password Identifier
This extends the SAE implementation in both infrastructure and mesh BSS
cases to allow an optional Password Identifier to be used. This uses the
mechanism added in P802.11REVmd/D1.0. The Password Identifier is
configured in a wpa_supplicant network profile as a new string parameter
sae_password_id. In hostapd configuration, the existing sae_password
parameter has been extended to allow the password identifier (and also a
peer MAC address) to be set. In addition, multiple sae_password entries
can now be provided to hostapd to allow multiple per-peer and
per-identifier passwords to be set.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-05-19 17:30:29 +03:00
Jouni Malinen
d501c27cfe EAP-TLS server: Disable TLS v1.3 by default
The current EAP peer implementation is not yet ready for the TLS v1.3
changes with EAP-TTLS, EAP-PEAP, and EAP-FAST, so disable TLS v1.3 for
this EAP method for now.

While the current EAP-TLS implementation is more or less complete for
TLS v1.3, there has been no interoperability testing with other
implementations, so disable for by default for now until there has been
chance to confirm that no significant interoperability issues show up
with TLS version update. tls_flags=[ENABLE-TLSv1.3] configuration
parameter can be used to enable TLS v1.3 (assuming the TLS library
supports it; e.g., when using OpenSSL 1.1.1).

Signed-off-by: Jouni Malinen <j@w1.fi>
2018-05-01 22:13:38 +03:00
Jouni Malinen
8760b9848c HS 2.0: Send Terms and Conditions Acceptance notification
This extends hostapd Access-Accept processing to check if the RADIUS
server indicated that Terms and Conditions Acceptance is required. The
new hs20_t_c_server_url parameter is used to specify the server URL
template that the STA is requested to visit.

This commit does not enable any kind of filtering, i.e., only the part
of forwarding a request from Access-Accept to the STA using
WNM-Notification is covered.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-04-24 00:35:47 +03:00
Jouni Malinen
6cb8f4f382 HS 2.0: Terms and Conditions attributes in Access-Request messages
This extends hostapd with two new configuration parameters
(hs20_t_c_filename and hs20_t_c_timestamp) that can be used to specify
that the Terms and Conditions attributes are to be added into all
Access-Request messages for Hotspot 2.0 STAs.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-04-24 00:35:47 +03:00
Jouni Malinen
0e450db285 HS 2.0: Allow configuration of operator icons
This extends hostapd Hotspot 2.0 implementation to allow operator icons
to be made available. The existing hs20_icon parameter is used to define
the icons and the new operator_icon parameter (zero or more entries) is
used to specify which of the available icons are operator icons. The
operator icons are advertised in the Operator Icon Metadata ANQP-element
while the icon data can be fetched using the same mechanism (icon
request/binary file) that was added for the OSU Providers icons.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-04-17 16:40:47 +03:00
Michael Braun
83fe4bd3bf FT: Convert r0_key_lifetime to seconds
Add a new configuration option ft_r0_key_lifetime that deprecates
r0_key_lifetime. Though, the old configuration is still accepted for
backwards compatibility.

This simplifies testing. All other items are in seconds as well. In
addition, this makes dot11FTR0KeyLifetime comment match with what got
standardized in the end in IEEE Std 802.11r-2008.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2018-04-05 13:47:23 +03:00
Jouni Malinen
7e1d3ee963 Add hostapd.conf venue_url to set Venue URL ANQP-element
The new venue_url parameter can now be used to set the Venue URL ANQP
information instead of having to construct the data and use
anqp_elem=277:<hexdump> to set the raw value.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-03-26 16:10:47 +03:00
Jouni Malinen
d8b841eba8 SAE: Make dot11RSNASAESync configurable
The new hostapd.conf parameter sae_sync (default: 5) can now be used to
configure the dot11RSNASAESync value to specify the maximum number of
synchronization errors that are allowed to happen prior to
disassociation of the offending SAE peer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-12-26 12:46:22 +02:00
Shiva Sankar Gajula
a2660890a5 WPS: Allow WPS to be enabled in CCMP-256 and GCMP-256 only cases
Extend the check against WPA/TKIP only configuration by adding CCMP-256
and GCMP-256 to the list of allowed ciphers. This is needed to allow WPS
to be enabled in AP configurations where neither CCMP-128 nor GCMP-128
are enabled.

Signed-off-by: Shiva Sankar Gajula <sgajula@qti.qualcomm.com>
2017-12-02 12:00:44 +02:00
Jouni Malinen
27781c0ab5 Allow group cipher selection to be overridden
The new hostapd configuration parameter group_cipher can now be used to
override the automatic cipher selection based on enabled pairwise
ciphers. It should be noted that selecting an unexpected group cipher
can result in interoperability issues and this new capability is mainly
for testing purposes.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-17 12:31:41 +02:00
Jouni Malinen
6f234c1e2e Optional AP side workaround for key reinstallation attacks
This adds a new hostapd configuration parameter
wpa_disable_eapol_key_retries=1 that can be used to disable
retransmission of EAPOL-Key frames that are used to install
keys (EAPOL-Key message 3/4 and group message 1/2). This is
similar to setting wpa_group_update_count=1 and
wpa_pairwise_update_count=1, but with no impact to message 1/4
retries and with extended timeout for messages 4/4 and group
message 2/2 to avoid causing issues with stations that may use
aggressive power saving have very long time in replying to the
EAPOL-Key messages.

This option can be used to work around key reinstallation attacks
on the station (supplicant) side in cases those station devices
cannot be updated for some reason. By removing the
retransmissions the attacker cannot cause key reinstallation with
a delayed frame transmission. This is related to the station side
vulnerabilities CVE-2017-13077, CVE-2017-13078, CVE-2017-13079,
CVE-2017-13080, and CVE-2017-13081.

This workaround might cause interoperability issues and reduced
robustness of key negotiation especially in environments with
heavy traffic load due to the number of attempts to perform the
key exchange is reduced significantly. As such, this workaround
is disabled by default (unless overridden in build
configuration). To enable this, set the parameter to 1.

It is also possible to enable this in the build by default by
adding the following to the build configuration:

CFLAGS += -DDEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES=1

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-10-17 00:06:26 +03:00