Commit graph

4711 commits

Author SHA1 Message Date
Jouni Malinen
984d5b7e1f mesh: Fix random llid generation in an error case
If os_get_random() fails, llid must not be read/used since it could be
uninitialized. Handle that special case by clearing llid explicitly to 0
to continue iteration.

Fixes: 5f92659d88 ("mesh: Add mesh peering manager")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-15 22:26:07 +03:00
Jouni Malinen
e6ac47b47d Fix debug print in GET_PREF_FREQ_LIST handler
Do not use the buf argument to wpas_ctrl_iface_get_pref_freq_list() in
the debug print since it points to the response buffer ("OK\n" without
null termination). This was supposed to print the cmd argument instead.
The previous version ended up using uninitialized heap memory from the
response buffer.

Fixes: 983422088f ("nl80211: Add means to query preferred channels")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-15 20:54:12 +03:00
Jouni Malinen
2e70e807c8 D-Bus: Fix P2P GroupStarted signal not to use uninitialized IP buffer
wpas_p2p_completed() used wpa_sm_get_p2p_ip_addr() return value properly
for filling in the ip_addr[] string only if the IP addresses got
assigned, but the raw ip[] array was passed to
wpas_dbus_signal_p2p_group_started() regardless of whether the IP
addresses were assigned. This could result in using uninitialized stack
memory for constructing the GroupStarted signal values. Fix this by
filling those in only if the IP addressed are actually available.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-15 20:27:52 +03:00
Avraham Stern
56ac1f9dfe RRM: Set last beacon report indication in the last element only
The last beacon report indication was set in all the beacon report
elements in the last frame of the beacon report, while it should be
set only in the last beacon report element of the last frame.

Fixes: ecef0687dc ("RRM: Support for Last Beacon Report Indication subelement")
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2019-04-13 11:51:05 +03:00
Ben Greear
6f484978fb Document BSS expiration configurables
Help the user be aware of the options to configure when
wpa_supplicant will remove a BSS due to expiration.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2019-04-13 11:41:51 +03:00
Jouni Malinen
dd1a8cef4c Remove unnecessary copying of SSID and BSSID for external_auth
The external authentication command and event does not need to copy the
BSSID/SSID values into struct external_auth since those values are used
before returning from the call. Simplify this by using const u8 * to
external data instead of the array with a copy of the external data.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-12 20:43:26 +03:00
Jouni Malinen
242e857285 Extend domain_match and domain_suffix_match to allow list of values
These wpa_supplicant network profile parameters could be used to specify
a single match string that would be used against the dNSName items in
subjectAltName or CN. There may be use cases where more than one
alternative match string would be useful, so extend these to allow a
semicolon delimited list of values to be used (e.g.,
"example.org;example.com"). If any of the specified values matches any
of the dNSName/CN values in the server certificate, consider the
certificate as meeting this requirement.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-09 16:24:38 +03:00
Ilan Peer
0a42f1eded scan: Use normal scans after connection failure
In case of connection attempt failure, set 'normal_scans'
to zero, as otherwise it is possible that scheduled scan
would be used and not normal scan, which might delay the
next connection attempt.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2019-04-06 17:13:10 +03:00
Ilan Peer
0487967153 OWE: Fix a possible memory leak on error path
Properly handle the case where OWE IE is allocated, but
there is no space left to add it in the WPA IE buffer.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2019-04-06 17:02:13 +03:00
Peng Xu
edcaf16f9e P2P: Enable HE for both 2G and 5G bands
Previously HE was only enabled for a 2G P2P GO. This change enables HE
for both 2G and 5G P2P GO.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-05 20:59:48 +03:00
Ankita Bajaj
822c756e8c MBO: Update connect params with new MBO attributes to driver
MBO attributes Non-preferred channel list and Cellular capabilities are
updated using WNM-Notification Request frame to the current connected
BSS. These same attributes need to be added in the (Re)Association
Request frame sent by the station when roaming, including the case where
the driver/firmware takes care of SME/MLME operations during roaming, so
we need to update the MBO IE to the driver.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-05 20:56:03 +03:00
Ankita Bajaj
74f8e768f2 MBO: Always include Non-preferred Channel Report attribute in AssocReq
Include the Non-preferred Channel Report attribute in (Re)Association
Request frames even when the MBO STA has no non-preferred channels in
any operating classes. In case of no non-preferred channels the
attribute length field shall be set to zero and the Operating Class,
Channel List, Preference and Reason Code fields shall not be included.
This indicates to the MBO AP that the MBO STA has no non-preferred
channels access all supported operating classes.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-05 20:43:59 +03:00
Jouni Malinen
bd23daa8e6 DPP: Move GAS encapsulation into dpp_build_conf_req()
Avoid duplicated code in each user of dpp_build_conf_req() by moving the
common encapsulation case into this helper function.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-03 19:10:47 +03:00
Jouni Malinen
be609c6fc6 SAE: Fix commit message override with external authentication
Do not add duplicate Transaction Sequence and Status Code fields when
using test functionality to override SAE commit message.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-01 13:28:26 +03:00
Jouni Malinen
9af1eea37a Prefer FT-SAE over FT-PSK if both are enabled
FT-SAE is considered stronger than FT-PSK, so prefer it over FT-PSK
similarly to how SAE is preferred over WPA-PSK.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-28 03:27:35 +02:00
Jouni Malinen
853bd19f22 Add more debug prints on suite selector selection
This makes it a bit easier to figure out why wpa_supplicant selects a
specific cipher/AKM for association.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-28 02:58:00 +02:00
Jouni Malinen
6d77014e71 Suite B: Prefer FT-EAP-SHA384 over WPA-EAP-SUITE-B-192
If both of these AKMs are enabled in the wpa_supplicant network profile
and the target AP advertises support for both, prefer the FT version
over the non-FT version to allow FT to be used.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-28 01:57:10 +02:00
Jouni Malinen
ab3aebcce5 SAE: Fix PMKSA cache entry search for FT-SAE case
Previously, PMKSA cache entries were search for AKM=SAE and that did not
find an entry that was created with FT-SAE when trying to use FT-SAE
again. That resulted in having to use full SAE authentication instead of
the faster PMKSA caching alternative.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-27 04:03:12 +02:00
vamsi krishna
bcf1900058 FT-SAE: Enable external auth support for FT-SAE also
Extend the external authentication support to FT-SAE mode connections
also in addition to SAE mode connections.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-27 03:18:13 +02:00
Jouni Malinen
76fd782abe SAE: Reorder SAE and FT-SAE AKM selection to prefer the FT option
If a network profile has both SAE and FT-SAE enabled, SAE was previously
picked (and used incorrectly as explained in the previous commit). This
is not ideal since use of FT protocol can speed up roaming within in
mobility domain. Reorder this checks so that FT-SAE is preferred over
SAE if both are enabled.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-26 22:50:17 +02:00
Jouni Malinen
322d328e71 FT: Fix SAE + FT-SAE behavior in association parameter selection
Do not try to initialize FT reassociation if the selected AKM is for SAE
instead of FT-SAE when both of these are enabled in a network profile.
This fixes an issue with MDE being included in an (Re)Association
Request frame even when using a non-FT AKM (which is something that
results in hostapd rejecting the association).

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-26 22:50:17 +02:00
Jouni Malinen
87d8435cf9 DPP: Common configurator/bootstrapping data management
Merge the practically copy-pasted implementations in wpa_supplicant and
hostapd into a single shared implementation in dpp.c for managing
configurator and boostrapping information. This avoid unnecessary code
duplication and provides a convenient location for adding new global DPP
data.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-24 17:29:45 +02:00
Jouni Malinen
10ec6a5f38 DPP2: PFS for PTK derivation
Use Diffie-Hellman key exchange to derivate additional material for
PMK-to-PTK derivation to get PFS. The Diffie-Hellman Parameter element
(defined in OWE RFC 8110) is used in association frames to exchange the
DH public keys. For backwards compatibility, ignore missing
request/response DH parameter and fall back to no PFS in such cases.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-18 18:32:31 +02:00
Jouni Malinen
18015fc8a4 DPP2: Support new legacy+DPP config object credentials
This allows devices supporting DPP protocol version 2 or newer to
provision networks that enable both the legacy (PSK/SAE) and DPP
credentials.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-16 18:52:06 +02:00
Jouni Malinen
dd6c598007 DPP: Support DPP and SAE in the same network profile
Make both DPP and SAE code aware of the cases where the same network
profile is configured to enable both DPP and SAE. Prefer DPP over SAE in
such cases and start DPP/SAE exchanges based on what both the station
and the AP support.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-16 17:29:59 +02:00
Jouni Malinen
9305c2332b DPP: Clean up configuration parsing
Share a single parsing implementation for both hostapd and
wpa_supplicant to avoid code duplication. In addition, clean up the
implementation to be more easily extensible.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-16 17:29:59 +02:00
Jouni Malinen
f5db775049 Remove pending connect and sme-connect radio works on disconnect
There was a race condition in a case where a new connection attempt was
scheduled as a pending radio work and that was followed by a DISCONNECT
command before the pending radio work is started. The pending radio work
would not have been deleted in that sequence and instead, it was
executed when the radio became available next. This could result in an
unexpected connection after an explicit request to disconnect.

Fix this by removing pending connect and sme-connect radio works on
disconnection request.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-15 13:03:31 +02:00
Jouni Malinen
67b3bcc954 DPP2: Testing option for Config Object rejction
Add a new testing option to force Enrollee to reject the receive Config
Object.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-15 00:31:09 +02:00
Jouni Malinen
22f90b32f1 DPP2: Configuration Result message generation and processing
Use this new message from Enrollee to Configurator to indicate result of
the config object provisioning if both devices support protocol version
2 or newer.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-15 00:31:09 +02:00
Jouni Malinen
c98617b48d DPP2: Make DPP version number support available over control interface
"GET_CAPABILITY dpp" can now be used to determine which version number
of DPP is supported in the build.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-15 00:31:09 +02:00
Jayachandran Sreekumaran
2b7fa03559 P2P: Fix ACS offloading behavior with p2p_no_group_iface=1
wpa_s->p2p_go_do_acs was not cleared during P2P group deletion and that
resulted in the case of no separate group interface continuing to assume
ACS was to be used for consecutive GO starts even if they tried to
specify a frequency. Fix this by explicitly clearing
wpa_s->p2p_go_do_acs during P2P group deletion and also clear this when
processing the P2P_GROUP_ADD if the parameters do not request ACS to be
used.

Fixes: 37ed3254de ("P2P: ACS offload for the autonomous GO")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-13 13:22:40 +02:00
Jouni Malinen
ce7effd08f DPP2: Build configuration flags for DPP version 2 support
The new CONFIG_DPP2=y build option for hostapd and wpa_supplicant is
used to control whether new functionality defined after the DPP
specification v1.0 is included. All such functionality are considered
experimental and subject to change without notice and as such, not
suitable for production use.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-13 12:00:09 +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
Jouni Malinen
9571f945c6 mesh: Check that SAE state initialization succeeded for PMKID check
mesh_rsn_auth_sae_sta() might fail, so verify that sta->sae got
allocated before dereferencing it for a PMKID check.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-03-09 18:55:58 +02:00
Lubomir Rintel
fafad85274 defconfig: Enable DBus
Acquire the new name, along with introspection. This is generally useful
for other daemons to integrate with wpa_supplicant, notably
NetworkManager.

Debian and Fedora (and likely any other distro that configured wireless
via NetworkManager) enable this.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-03-09 18:35:49 +02:00
Lubomir Rintel
6a8dee76d4 wpa_supplicant: Drop the old D-Bus interface support
This drops support for the fi.epitest.hostap.WPASupplicant D-Bus name
along with the associated CONFIG_CTRL_IFACE_DBUS option. Nothing should
really be using this since 2010.

This is a just a straightforward removal. Perhaps the dbus_common.c and
dbus_new.c can be merged now. Also, the "_NEW" suffix of the config
option seems to make even less sense than it used to.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-03-09 18:33:26 +02:00
Jouni Malinen
954c535a50 DPP: Update wpa_supplicant configuration file after provisioning
WPS was already doing this if update_config=1 was set and DPP should be
consistent with that behavior. Update the configuration file if
update_config=1 and dpp_config_processing is set to 1 or 2.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-03-09 16:21:54 +02:00
Jouni Malinen
339dc8bd6b WPS: Allow SAE configuration to be added automatically for PSK
The new wpa_supplicant configuration parameter wps_cred_add_sae=1 can be
used to request wpa_supplicant to add SAE configuration whenever WPS is
used to provision WPA2-PSK credentials and the credential includes a
passphrase (instead of PSK). This can be used to enable WPA3-Personal
transition mode with both SAE and PSK enabled and also with PMF enabled.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-06 21:52:49 +02:00
Jouni Malinen
fd83089120 SAE: Reuse previously generated PWE on a retry with the same AP
Do not start SAE authentication from scratch when the AP requests
anti-clogging token to be used. Instead, use the previously generated
PWE as-is if the retry is for the same AP and the same group. This saves
unnecessary processing on the station side in case the AP is under heavy
SAE authentiation load.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-06 13:07:11 +02:00
Jouni Malinen
a9fe13035e SAE: Enable only groups 19, 20, and 21 in station mode
Remove groups 25 (192-bit Random ECP Group) and 26 (224-bit Random ECP
Group) from the default SAE groups in station mode since those groups
are not as strong as the mandatory group 19 (NIST P-256).

In addition, add a warning about MODP groups 1, 2, 5, 22, 23, and 24
based on "MUST NOT" or "SHOULD NOT" categorization in RFC 8247. All the
MODP groups were already disabled by default and would have needed
explicit configuration to be allowed.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-05 17:23:58 +02:00
Lubomir Rintel
611308365e defconfig: Enable IEEE 802.11w management frame protection (wpa_supplicant)
NetworkManager can use these if available and the distros generally
enable this already.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:50 +02:00
Lubomir Rintel
9515fa9250 defconfig: enable IEEE 802.11r fast BSS transition (wpa_supplicant)
Generally useful. Linux distros already enable these, upcoming
NetworkManager will support it too.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:50 +02:00
Lubomir Rintel
6b7a0da75b defconfig: Enable IEEE 802.11n and 802.11ac (wpa_supplicant)
I guess there's no reason anyone with capable hardware wouldn't want to
enable these. Debian and Fedora aleady do.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:50 +02:00
Lubomir Rintel
467004d632 defconfig: Enable Hotspot 2.0 (wpa_supplicant)
Generally useful, Debian enables this. Other distros should too.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:50 +02:00
Lubomir Rintel
ec52faa2b2 defconfig: Enable RSN on IBSS networks (wpa_supplicant)
Fedora and Debian enable this. NetworkManager actually rejects such
configurations citing kernel bugs, but that actually might not be the
right thing to do anymore.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:50 +02:00
Jouni Malinen
67d99d2e07 defconfig: Remove obsolete notes about OpenSSL requirements for EAP-FAST
OpenSSL 0.9.8 reached its end-of-life long time ago, so remove these old
notes about need of a newer OpenSSL version for EAP-FAST since all
current OpenSSL versions include the needed functionality.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-25 19:48:50 +02:00
Lubomir Rintel
eafc5fec22 defconfig: Enable a handful of EAP methods (wpa_supplicant)
Fedora uses AKA, FAST, GPSK_SHA256, GPSK, IKEV2, PAX, SAKE and TNC. I
don't know why these in particular. AKA wouldn't work, because
CONFIG_PCSC is off anyways; let's enable all the other ones, and also
PWD (openSUSE enabled it because users demanded it).

Debian enables all of the above uses, but also PWD, AKA_PRIME, SIM, PSK
and EKE.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:50 +02:00
Lubomir Rintel
f64050da02 defconfig: Enable logging to file and syslog (wpa_supplicant)
Debian and Fedora enable both and log to syslog. openSUSE seems to log
to a flat file instead.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:50 +02:00
Lubomir Rintel
ae5240db86 defconfig: Enable simple bgscan module (wpa_supplicant)
Generally useful. Linux distros enable this and also utilize it via
NetworkManager.

Debian also enables the learn module. I'm leaving it off as it's marked
experimental.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:49 +02:00
Lubomir Rintel
2d6d47219e defconfig: Enable AP (wpa_supplicant)
Generally useful. Debian and Fedora enable this and support creating
access points via NetworkManager too.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:49 +02:00
Lubomir Rintel
f87450a73f defconfig: Enable WPS (wpa_supplicant)
WPS is generally useful with consumer hardware, and exposed to desktop
users via NetworkManager.

The Linux distros, including Debian, Fedora, and openSUSE enable it.
Debian also enables external registar support and NFC.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:49 +02:00
Jouni Malinen
d989e67d07 defconfig: Fix typos in Wi-Fi Display description
These were supposed to be talking about Wi-Fi Display, not Wi-Fi Direct.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-25 19:48:49 +02:00
Lubomir Rintel
c4eafad091 defconfig: Enable P2P and Wi-Fi Display (wpa_supplicant)
Generally useful. Debian and Fedora enable this, upcoming NetworkManager
provide some level of support too.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:49 +02:00
Lubomir Rintel
bf46c6fca1 defconfig: Add SAE (wpa_supplicant)
Generally useful and the distros (Debian, Fedora) enable this already to
support WPA3-Personal and protected 802.11s mesh BSSs.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:49 +02:00
Lubomir Rintel
ca098ee454 defconfig: Add DPP (wpa_supplicant)
Generally useful, already enabled in Debian and Fedora.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-02-25 19:48:49 +02:00
Jouni Malinen
2f7bc06816 UBSan: Avoid a warning on unsigned integer overflow
wpa_non_pref_chan_cmp() needs to use explicit typecasts to avoid UBSan
warnings for unsigned integer overflows.

mbo.c:298:26: runtime error: unsigned integer overflow: 1 - 2 cannot be represented in type 'unsigned int'

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-25 19:48:49 +02:00
Jouni Malinen
cc4cdefc7f UBSan: Avoid unnecessary warning
elems->mic might be NULL here, so do not try to decrement it by 2 even
if the result is not used anywhere due to a latter check for elems->mic
being NULL.

mesh_rsn.c:646:20: runtime error: pointer index expression with base 0x000000000000 overflowed to 0xfffffffffffffffe

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-25 19:48:49 +02:00
Jouni Malinen
c4fccfc7a5 UBSan: Avoid memcmp(ptr, NULL, 0)
Skip the memcmp() call if ssid_len == 0 and entry->ssid might be NULL to
avoid an UBSan warning.

wpa_supplicant.c:3956:9: runtime error: null pointer passed as argument 2, which is declared to never be null

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-25 19:48:49 +02:00
Jouni Malinen
e3b5bd81bd UBSan: Fix RRM beacon processing attempt without scan_info
Some driver interfaces (e.g., wext) might not include the
data->scan_info information and data could be NULL here. Do not try to
call the RRM handler in this case since that would dereference the NULL
pointer when determining where scan_info is located and could
potentially result in trying to read from unexpected location if RRM is
enabled with a driver interface that does not support it.

events.c:1907:59: runtime error: member access within null pointer of type 'union wpa_event_data'

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-25 19:43:11 +02:00
Jouni Malinen
01d01a311c UBSan: Avoid size_t variable overflow in control interface
The loop "if (i-- == 0) break" style construction works in practice fine
since the check against 0 is done before decrementation. However, this
hits an UBSan warning, so split that decrementation to happen as a
separate step after the check and break from the loop.

ctrl_iface.c:5086:9: runtime error: unsigned integer overflow: 0 - 1 cannot be represented in type 'size_t' (aka 'unsigned long')

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-25 19:42:50 +02:00
Jouni Malinen
ec2e7c4cfa UBSan: Avoid unsigned integer overflow is throughput estimation
wpa_scan_result_compar() would return wb->est_throughput -
wa->est_throughput in case the comparison is done based on the
throughput estimates. While the return value from this function is a
signed integer, these est_throughput values are unsigned integers and
need to be explicitly typecast to avoid an UBSan warning.

scan.c:1996:30: runtime error: unsigned integer overflow: 54000 - 135000 cannot be represented in type 'unsigned int'

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-25 19:42:48 +02:00
Lior David
2c129a1b71 Fix cipher suite selector default value in RSNE for DMG
According to IEEE Std 802.11-2016, 9.4.2.25 when fields of an RSNE are
not included, the default values are used. The cipher suite defaults
were hardcoded to CCMP in the previous implementation, but the default
is actually different for DMG: GCMP (per 9.4.2.25.2).

It is not possible to find out from the RSNE if the network is non-DMG
or DMG, so callers of wpa_parse_wpa_ie_rsn() need to handle this case
based on context, which can be different for each caller.

In order to fix this issue, add flags to the wpa_ie_data indicating
whether pairwise/group ciphers were included in the RSNE. Callers can
check these flags and fill in the appropriate ciphers. The
wpa_parse_wpa_ie_rsn() function still initializes the ciphers to CCMP by
default so existing callers will not break. This change also fixes some
callers which need to handle the DMG network case.

Signed-off-by: Lior David <liord@codeaurora.org>
2019-02-21 12:42:24 +02:00
Davina Lu
83ebf55865 wpa_supplicant: 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 backhaul STA needs to add
a Multi-AP IE to the WFA vendor extension element in the WSC M1 message
that indicates it supports the Multi-AP backhaul STA role. The Registrar
(if it support Multi-AP onboarding) will respond to that with a WSC M8
message that also contains the Multi-AP IE, and that contains the
credentials for the backhaul SSID (which may be different from the SSID
on which WPS is performed).

Introduce a new parameter to wpas_wps_start_pbc() and allow it to be
set via control interface's new multi_ap=1 parameter of WPS_PBC call.
multi_ap_backhaul_sta is set to 1 in the automatically created SSID.
Thus, if the AP does not support Multi-AP, association will fail and
WPS will be terminated.

Only wps_pbc is supported.

This commit adds the multi_ap argument only to the control socket
interface, not to the D-Bus interface.

Since WPS associates with the fronthaul BSS instead of the backhaul BSS,
we should not drop association if the AP announces fronthaul-only BSS.
Still, we should only do that in the specific case of WPS. Therefore,
add a check to multi_ap_process_assoc_resp() to allow association with a
fronthaul-only BSS if and only if key_mgmt contains WPS.

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>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Cc: Marianna Carrera <marianna.carrera.so@quantenna.com>
2019-02-18 22:35:41 +02:00
Jouni Malinen
0f9632ceb8 mesh: More consistent checking of wpa_s->ifmsh in completion handler
It does not look like wpa_s->ifmsg could be NULL here, but better be
more consistent anyway to keep static analyzers happier by avoiding
dereference of wpa_s->ifmsh in the function before the NULL check for
it.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-02-18 18:46:40 +02:00
Jouni Malinen
947b5a1532 P2P: Stop listen state if Action frame TX is needed on another channel
This speeds up P2P responses to frames received on an operating channel
in case there is an ongoing P2P listen operation on another channel.
This is applicable to drivers that support multiple channels in
concurrently.

This addresses an issue showing up in the
p2ps_channel_active_go_and_station_different_mcc test case where the
Provision Discovery Request frame can be received on the operating
channel of a group instead of the Listen channel. The response was
delayed until the listen operation timed out and this took too long time
for the peer to receive the response.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-17 16:53:03 +02:00
Jouni Malinen
3f8ceff54c Indicate wifi_generation in wpa_supplicant STATUS output
This adds a wifi_generation=4/5/6 line to the STATUS output if the
driver reports (Re)Association Request frame and (Re)Association
Response frame information elements in the association or connection
event. Only the generations 4 (HT = 802.11n), 5 (VHT = 802.11ac), and 6
(HE = 802.11ax) are reported.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-02-15 02:09:41 +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
Jouni Malinen
bbdb501460 Note HT overrides in debug log only if set
This makes the debug log cleaner by removing the mostly confusing prints
about HT override parameters if they are not actually used.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-10 01:43:50 +02:00
Masashi Honma
73f285dad2 Add FT-PSK to GET_CAPABILITY key_mgmt
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2019-02-05 23:37:55 +02:00
Jouni Malinen
8f99a3c26a Clear config item writing buffer before freeing it
This buffer may be used to store items like passwords, so better clean
it explicitly to avoid possibility of leaving such items in heap memory
unnecessarily.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-02-05 20:26:22 +02:00
Jouni Malinen
a68e9b6980 D-Bus: Fix P2P DeleteService dict iteration
The previous implementation assumed the first entry coming out from the
dict is always service_type. That may not be the case, so properly
iterate over all dict entries in one loop instead of assuming what the
first entry is.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-04 17:13:54 +02:00
Jouni Malinen
0607346f12 D-Bus: Fix a memory leak in DeleteService handler
If the service_type string entry is not included, the dict entry was not
cleared.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-04 12:26:35 +02:00
Jouni Malinen
d8c20ec591 DPP: Clear dpp_listen_freq on remain-on-channel failure
If the DPP_LISTEN command failed due to the driver rejecting the
remain-on-channel request, wpa_s->dpp_listen_freq was left set to the
requested listen frequency and this resulted in the next DPP_LISTEN for
the same frequency reporting "DPP: Already listening on .." even when
the driver was not really listening on that frequency. Fix this by
clearing wpa_s->dpp_listen_freq in the error case.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-01-30 12:28:43 +02:00
Purushottam Kushwaha
59fa205388 P2P: Allow the avoid channels for P2P discovery/negotiation
The avoid channels are notified through
QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY allow minimal traffic, so
enhance the P2P behavior accordingly by considering these avoid
frequencies for P2P discovery/negotiation as long as they are not in
disallowed frequencies list.

Additionally, do not return failure when none of social channels are
available as operation channel, rather, mark the op_channel/op_reg_class
to 0 as this would anyway get selected during the group formation in
p2p_prepare_channel.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-01-30 12:15:19 +02:00
Masashi Honma
89896c0008 tests: Use python3 compatible print statement
This patch is made by using 2to3 command.

$ find . -name *.py | xargs 2to3 -f print -w -n

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2019-01-26 12:37:25 +02:00
Masashi Honma
bab493b904 tests: Use python3 compatible "except" statement
This patch is made by using 2to3 command.

$ find . -name *.py | xargs 2to3 -f except -w -n

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2019-01-26 12:11:35 +02:00
Daniel Golle
0dab477335 Write multi_ap_backhaul_sta to wpa_supplicant config
The network configration option multi_ap_backhaul_sta was added without
adding it to wpa_config_write_network(). Hence the value of this option
was not included when writing the configuration file. Fix this by
including it in wpa_config_write_network().

Fixes: 5abc7823b ("wpa_supplicant: Add Multi-AP backhaul STA support")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2019-01-24 00:27:12 +02:00
Lubomir Rintel
98251c6f21 dbus: Document more possible BSS/RSA/KeyMgmt values
This is probably not ideal, since it would be better if it ended up
being autogenerated somehow, but at least it's somewhat of an
improvement.

Also added a comment that encourages keeping the docs in sync.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-01-24 00:24:09 +02:00
Lior David
1e591df063 Check supported types in wpas_mac_addr_rand_scan_set()
When setting scan with randomized MAC, check the requested scan type
against supported types, to ensure callers will not set an unsupported
type, since this can cause scan/connect failures later. It is better to
do this in wpas_mac_addr_rand_scan_set() instead of control interface
specific code to apply the constraint on all possible interfaces using
this setting.

Signed-off-by: Lior David <liord@codeaurora.org>
2019-01-24 00:21:34 +02:00
Lior David
c85249aa15 Fix test compilation error related to sme_event_unprot_disconnect()
sme_event_unprot_disconnect() is only defined with CONFIG_IEEE80211W, so
the CONFIG_TESTING_OPTIONS command UNPROT_DEAUTH can be defined only
with builds that enable IEEE 802.11w support.

Signed-off-by: Lior David <liord@codeaurora.org>
2019-01-24 00:21:28 +02:00
Jouni Malinen
13a200a92a FILS: Remove notes about experimental implementation
The standard amendment has been published and there has been sufficient
amount of interoperability testing for FILS to expect the protocol not
to be changed anymore, so remove the notes claiming this to be
experimental and not suitable for production use.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-01-22 13:33:48 +02:00
Lubomir Rintel
86d4e05374 dbus: Expose support of SAE key management in BSS properties
This is going to be useful for NetworkManager and likely others.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
2019-01-22 13:26:12 +02:00
Masashi Honma
3e949655cc Revert "mesh: Apply channel attributes before setup interface"
This reverts commit 2564184440.

Commit 2564184440 ("mesh: Apply channel attributes before setup
interface") triggers some channel configurations to result in leaking
memory. This seems to be caused by hapd->started not getting set when
going through a callback to start hostapd operation (e.g., when using
HT40 coex scan) due to hostapd_setup_bss() not getting called. This
results in hostapd_free_hapd_data() not clearing allocated
hapd->wpa_auth. This can be reproduced with the hwsim test case
mesh_secure_ocv_mix_legacy.

A more complete cleanup of the pending mesh patch for DFS support seems
to be needed to fix this properly, so the best approach for now is to
revert this patch and bring it back once rest of the mesh changes are
ready to be applied.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2019-01-21 23:43:12 +02:00
Amit Khatri
cc0f24196b D-Bus: Fix P2P Flush method to clear pending Action frames
If we call p2p_flush from ctrl_iface, before calling p2p_flush() it
calls wpas_p2p_stop_find(). Add the same call to the matching D-Bus
method to clear all pending operations.

Signed-off-by: Amit Khatri <amit7861234@gmail.com>
2019-01-21 12:30:17 +02:00
Jimmy Chen
a95906f938 P2P: support random interface address
To enhance privacy, generate a random interface for each group.

There are two configurations are introduced:
* p2p_interface_random_mac_addr
  enable interface random MAC address feature, default disable.

Signed-off-by: Jimmy Chen <jimmycmchen@google.com>
2019-01-12 17:58:30 +02:00
Jimmy Chen
9359cc8483 P2P: Support random device address
To enhance privacy, generate a random device address for P2P interface.
If there is no saved persistent group, it generate a new random MAC
address on bringing up p2p0. If there is saved persistent group, it will
use last MAC address to avoid breaking group reinvoke behavior.

There are two configurations are introduced:
* p2p_device_random_mac_addr
  enable device random MAC address feature, default disable.
* p2p_device_persistent_mac_addr
  store last used random MAC address.

Signed-off-by: Jimmy Chen <jimmycmchen@google.com>
2019-01-12 17:55:42 +02:00
Peng Xu
5a3319ab1b P2P: Add 802.11ax support for P2P GO
An optional parameter "he" is added to p2p_connect, p2p_group_add, and
p2p_invite to enable 11ax HE support. The new p2p_go_he=1 configuration
parameter can be used to request this to be enabled by default.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-01-12 13:09:39 +02:00
Martin Stanislav
cfb01f58a6 eapol_test: Start the identifier at an initial random value
Start the (EAP request) identifier at an initial random value
as recommended by RFC 3748 in section 4.1 Request and Response
on page 21.

Signed-off-by: Martin Stanislav <ms@uakom.sk>
2019-01-08 13:40:33 +02:00
Arend van Spriel
d896874f86 nl80211: Indicate 802.1X 4-way handshake offload in connect
Upon issuing a connect request we need to indicate that we want the
driver to offload the 802.1X 4-way handshake for us. Indicate it if
the driver capability supports the offload.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
2019-01-08 01:12:02 +02:00
Arend van Spriel
436ee2fd93 drivers: Add separate driver flags for 802.1X and PSK 4-way HS offloads
Allow drivers to indicate support for offloading 4-way handshake for
either IEEE 802.1X (WPA2-Enterprise; EAP) and/or WPA/WPA2-PSK
(WPA2-Personal) by splitting the WPA_DRIVER_FLAGS_4WAY_HANDSHAKE flag
into two separate flags.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
2019-01-08 01:12:02 +02:00
Ben Greear
b06d60a902 Use freq_list to constrain supported operating class information
If a station is configured to allow only a subset of frequencies for an
association, the supported operating classes may need to be more limited
than what the hardware supports.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2019-01-08 00:20:04 +02:00
Ben Greear
cb828507f5 Use disable_ht/vht to constrain supported operating class information
If user has disabled HT or VHT, those related operating classes
should not be advertised as supported.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2019-01-08 00:19:07 +02:00
Peter Oh
e5a9b1e8a3 mesh: Implement use of VHT20 config in mesh mode
Mesh in VHT mode is supposed to be able to use any bandwidth that VHT
supports, but there was no way to set VHT20 although there are
parameters that are supposed to be used. This commit along then previous
commit for VHT_CHANWIDTH_USE_HT makes mesh configuration available to
use any bandwidth with combinations of existing parameters like shown
below.

VHT80:
  default
  do not set any parameters
VHT40:
  max_oper_chwidth = 0
VHT20:
  max_oper_chwidth = 0
  disable_ht40 = 1
HT40:
  disable_vht = 1
HT20:
  disable_ht40 = 1
disable HT:
  disable_ht = 1

Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
2019-01-06 23:49:40 +02:00
Peter Oh
806db174fd mesh: Add VHT_CHANWIDTH_USE_HT to max_oper_chwidth
Channel width in VHT mode refers HT capability when the width goes down
to below 80 MHz, hence add checking HT channel width to its max
operation channel width. So that mesh has capability to select bandwidth
below 80 MHz.

Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
2019-01-06 23:43:40 +02:00
Ben Greear
fd83a80815 wpa_supplicant: Allow disabling VHT SGI capability
This provides similar features to what was already available for HT
overrides. Probe Request frames look correct, and VHT capabilities shown
in debugfs look as expected.

Signed-off-by: Ben Greear <greearb@candelatech.com>
2019-01-06 20:59:36 +02:00
Jouni Malinen
02f52ab6f5 Use lchown() instead of chown() for self-created files
There is no need to allow symlink dereferencing in these cases where a
file (including directories and sockets) are created by the same
process, so use the safer lchown() variant to avoid leaving potential
windows for something external to replace the file before the chown()
call. The particular locations used here should not have write
permissions enabled for processes with less privileges, so this may not
be needed, but anyway, it is better to make these more restrictive
should there be cases where directory permissions are not as expected
for a good deployment.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-01-06 20:28:04 +02:00
Jouni Malinen
441ba1a3e3 dbus: Fix build without CONFIG_WNM=y
wpa_s->bss_tm_status is within #ifdef CONFIG_WNM, so need to access it
through matching condition.

Fixes: 80d06d0ca9 ("dbus: Export BSS Transition Management status")
Signed-off-by: Jouni Malinen <j@w1.fi>
2019-01-05 18:44:17 +02:00
Jouni Malinen
cc9c4feccc OpenSSL: Allow systemwide policies to be overridden
Some distributions (e.g., Debian) have started introducting systemwide
OpenSSL policies to disable older protocol versions and ciphers
throughout all programs using OpenSSL. This can result in significant
number of interoperability issues with deployed EAP implementations.

Allow explicit wpa_supplicant (EAP peer) and hostapd (EAP server)
parameters to be used to request systemwide policies to be overridden if
older versions are needed to be able to interoperate with devices that
cannot be updated to support the newer protocol versions or keys. The
default behavior is not changed here, i.e., the systemwide policies will
be followed if no explicit override configuration is used. The overrides
should be used only if really needed since they can result in reduced
security.

In wpa_supplicant, tls_disable_tlsv1_?=0 value in the phase1 network
profile parameter can be used to explicitly enable TLS versions that are
disabled in the systemwide configuration. For example,
phase1="tls_disable_tlsv1_0=0 tls_disable_tlsv1_1=0" would request TLS
v1.0 and TLS v1.1 to be enabled even if the systemwide policy enforces
TLS v1.2 as the minimum version. Similarly, openssl_ciphers parameter
can be used to override systemwide policy, e.g., with
openssl_ciphers="DEFAULT@SECLEVEL=1" to drop from security level 2 to 1
in Debian to allow shorter keys to be used.

In hostapd, tls_flags parameter can be used to configure similar
options. E.g., tls_flags=[ENABLE-TLSv1.0][ENABLE-TLSv1.1]

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-01-05 17:14:26 +02:00
Jouni Malinen
f808bd59e8 FT: Do not try to use FT-over-air if reassociation cannot be used
There is no point in going through FT authentication if the next step
would have to use association exchange which will be rejected by the AP
for FT, so only allow FT-over-air if previous BSSID is set, i.e., if
reassociation can be used.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-01-04 23:22:46 +02:00
Jouni Malinen
19c3a9a88d P2PS: Notify D-Bus about removal of a stale/empty persistent group
During P2PS PD Request processing wpa_supplicant removes stale and empty
persistent groups, but it did not notify D-Bus to unregister object. Fix
this by adding the missing notifications.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-01-04 13:19:20 +02:00