It was possible for wpa_auth_sm_event(WPA_DEAUTH) to be called from
wpa_sm_step() iteration in the case the EAPOL authenticator state
machine ended up requesting the station to be disconnected. This
resulted in unnecessary recursive call to wpa_sm_step(). Avoid this by
using the already running call to process the state change.
It was possible to hit this sequence in the hwsim test case
ap_wpa2_eap_eke_server_oom.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Clearing keyRun here is not specified in IEEE Std 802.1X-2004, but it
looks like this would be logical thing to do here since the EAPOL-Key
exchange is not possible in this state. It is possible to get here on
disconnection event without advancing to the AUTHENTICATING state to
clear keyRun before the IEEE 802.11 RSN authenticator state machine runs
and that may advance from AUTHENTICATION2 to INITPMK if keyRun = TRUE
has been left from the last association. This can be avoided by clearing
keyRun here.
It was possible to hit this corner case in the hwsim test case
ap_wpa2_eap_eke_server_oom in the case getKey operation was forced to
fail memory allocation. The following association resulted in the
station getting disconnected when entering INITPMK without going through
EAP authentication.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows an empty nested list (i.e., no MAC addresses) to be included
in the NL80211_CMD_SET_MAC_ACL message unlike with
nla_nest_start()/nla_nest_end() where the current libnl implementation
removes the "empty" attribute and causes cfg80211 to reject the command.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
While the EAPOL-Key MIC derivation was already changed from SHA256 to
SHA384 for the Suite B 192-bit AKM, KDF had not been updated similarly.
Fix this by using HMAC-SHA384 instead of HMAC-SHA256 when deriving PTK
from PMK when using the Suite B 192-bit AKM.
Signed-off-by: Jouni Malinen <j@w1.fi>
Config file is written to a temp file and then it is renamed to the
original config file. However, it is possible that the rename operation
will be commited to storage while file data will be still in cache
causing original config file to be empty or partially written in case of
a system reboot without a clean shutdown. Make this less likely to occur
by forcing the data to be written to the storage device before renaming
the file.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Commit 7da4f4b499 ('WPS: Check maximum
HTTP body length earlier in the process') added too strict check for
body length allocation. The comparison of new_alloc_nbytes against
h->max_bytes did not take into account that HTTPREAD_BODYBUF_DELTA was
added to previous allocation even if that ended up going beyond
h->max_bytes. This ended up rejecting some valid HTTP operations, e.g.,
when checking AP response to WPS ER setting selected registrar.
Fix this by taking HTTPREAD_BODYBUF_DELTA into account.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit de2a7b796d ('OpenSSL: Use
connection certificate chain with PKCS#12 extra certs') added a new
mechanism for doing this with OpenSSL 1.0.2 and newer. However, it did
not poinr out anything in debug log if SSL_add1_chain_cert() failed. Add
such a debug print and also silence static analyzer warning on res being
stored without being read (since the error case is ignored at least for
now).
Signed-off-by: Jouni Malinen <j@w1.fi>
This can be used to limit TLS session resumption within a TLS library
implementation to apply only for the cases where the same EAP method is
used. While the EAP server method matching will be enforced separately
by EAP server method implementations, this additional steps can optimize
cases by falling back to full authentication instead of having to reject
attempts after having completed session resumption successfully.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new tls_connection_set_success_data(),
tls_connection_set_success_data_resumed(),
tls_connection_get_success_data(), and tls_connection_remove_session()
functions can be used to mark cached sessions valid and to remove
invalid cached sessions. This commit is only adding empty functions. The
actual functionality will be implemented in followup commits.
Signed-off-by: Jouni Malinen <j@w1.fi>
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>
The EAP server is not yet capable of using TLS session ticket to resume
a session. Explicitly disable use of TLS session ticket with
EAP-TLS/TTLS/PEAP to avoid wasting resources on generating a session
ticket that cannot be used for anything.
Signed-off-by: Jouni Malinen <j@w1.fi>
BoringSSL does not support 192-bit AES, so these parts of the
wpa_supplicant module tests would fail.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This is needed at least with BoringSSL to avoid accepting OCSP-required
configuration with a TLS library that does not support OCSP stapling.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Unlike OpenSSL PKCS12_parse(), the BoringSSL version seems to require
the password pointer to be non-NULL even if no password is present. Map
passwrd == NULL to passwd = "" to avoid a NULL pointer dereference
within BoringSSL.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
BoringSSL commit 533ef7304d9b48aad38805f1997031a0a034d7fe ('Remove
SSL_clear calls in handshake functions.') triggered a regression for
EAP-TLS/TTLS/PEAP session resumption in wpa_supplicant due to the
removed SSL_clear() call in ssl3_connect() going away and wpa_supplicant
not calling SSL_clear() after SSL_shutdown(). Fix this by adding the
SSL_clear() call into wpa_supplicant after SSL_shutdown() when preparing
the ssl instance for another connection.
While OpenSSL is still call SSL_clear() in ssl3_connect(), it looks to
be safe to add this call to wpa_supplicant unconditionally.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This function does not seem to be available in BoringSSL. Since it is
needed for EAP-FAST (which is not currently working with BoringSSL),
address this by commenting out the EAP-FAST specific step from builds
that do not include EAP-FAST support.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It looks like BoringSSL does include that function even though it claims
support for OPENSSL_VERSION_NUMBER where this is available (1.0.2). For
now, comment out that call to fix build.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It looks like BoringSSL has removed the AES_wrap_key(), AES_unwrap_key()
API. This broke wpa_supplicant/hostapd build since those functions from
OpenSSL were used to replace the internal AES key wrap implementation.
Add a new build configuration option
(CONFIG_OPENSSL_INTERNAL_AES_WRAP=y) to allow the internal
implementation to be used with CONFIG_OPENSSL=y build to allow build
against the latest BoringSSL version.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
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>
Incorrect number of bytes was skipped from the beginning of the line
which resulted in the loop skipping spaces doing nothing. However, the
following operation was simply looking for the max-age parameter with
os_strstr(), so this did not have any effect on functionality. Fix the
number of bytes to skip and remove the unneeded loop to skip spaces.
Signed-off-by: Jouni Malinen <j@w1.fi>
It was possible for the Hotspot 2.0 case of OSU user interaction to fail
with wpadebug browser due to permission denial in the "start" command
("java.lang.SecurityException: Permission Denial: startActivity asks to
run as user -2 but is calling from user 0; this requires
android.permission.INTERACT_ACROSS_USERS_FULL"). Avoid this by using
more flexible USER_CURRENT_OR_SELF (-3) value with the --user argument.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
cfg80211 sends TSF information with the attribute NL80211_BSS_BEACON_TSF
if the scan results include information from Beacon frame. Probe
Response frame information is included in NL80211_BSS_TSF. If the device
receives only Beacon frames, NL80211_BSS_TSF might not carry updated
TSF, which results an older TSF being used in wpa_supplicant. Fetch both
possible TSF values (if available) and choose the latest TSF for the BSS
entry.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When using P2P invitation to re-invoke a persistent P2P group without
specifying the operating channel, query the driver for the preferred
frequency list, and use it to select the operating channel of the group.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When using OpenSSL 1.0.2 or newer, this replaces the older
SSL_CTX_add_extra_chain_cert() design with SSL_add1_chain_cert() to keep
the extra chain certificates out from SSL_CTX and specific to each
connection. In addition, build and rearrange extra certificates with
SSL_build_cert_chain() to avoid incorrect certificates and incorrect
order of certificates in the TLS handshake.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, the possible extra certificate(s) from a PKCS#12 file was
added once for each authentication attempt. This resulted in OpenSSL
concatenating the certificates multiple time (add one copy for each try
during the wpa_supplicant process lifetime). Fix this by clearing the
extra chain certificates before adding new ones when using OpenSSL 1.0.1
or newer that include the needed function.
Signed-off-by: Jouni Malinen <j@w1.fi>
This code path could not be hit with the RSNE generated by hostapd or
wpa_supplicant, but it is now possible to reach when using
own_ie_override test functionality. The RSNE and IE buffer length were
not updated correct in case wpa_insert_pmkid() had to add the RSN
Capabilities field.
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>
Use NULL to indicate if the address is not available instead of fixed
00:00:00:00:00:00. wpas_p2ps_prov_complete() already had code for
converting NULL to that all zeros address for event messages.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Change P2PS P2P-PROV-SHOW-PIN/P2P-PROV-ENTER-PIN event notifications
on PD Request/Response handling to meet required P2PS behavior.
The new implemented scheme:
1. For a legacy P2P provision discovery the event behavior remains
without changes
2. P2PS PD, advertiser method: DISPLAY, autoaccept: TRUE:
Advertiser: SHOW-PIN on PD request replied with a status SUCCESS
Seeker: ENTER-PIN on PD response received with a status SUCCESS
3. P2PS PD, advertiser method: DISPLAY, autoaccept: FALSE:
Advertiser: SHOW-PIN on PD request replied with a status
INFO_CURRENTLY_UNAVAILABLE
Seeker: ENTER-PIN on Follow-on PD request with a status
SUCCESS_DEFERRED
4. P2PS PD, advertiser method: KEYPAD, autoaccept: TRUE/FALSE:
Advertiser: ENTER-PIN on PD request replied with a status
INFO_CURRENTLY_UNAVAILABLE
Seeker: SHOW-PIN on PD response received with a status
INFO_CURRENTLY_UNAVAILABLE
This change in behavior breaks the existing test cases
p2ps_connect_keypad_method_nonautoaccept and
p2ps_connect_display_method_nonautoaccept. Those will be fixed in a
followup commit.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add a function to compute the group common frequencies, and
use it to update the group_common_frequencies as part of the
channel switch flows.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Add ieee80211_freq_to_channel_ext() conversion function into
ieee802_11_common.c. This function converts freq to channel and
additionally computes operating class, based on provided HT and VHT
parameters.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
This makes it possible to use these helper functions from hostapd as
well as the current use in wpa_supplicant.
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>
This fixes an issue where freed MB IEs buffer memory could potentially
have been accessed after an interface is detached from FST group.
Without this fix, if an interface is detached from FST group, it can use
MB IEs buffer previously set by fst_iface_set_ies(), although the buffer
was released by fst_iface_delete().
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>
FIPS_mode_set(1) cannot be called multiple times which could happen in
some dynamic interface cases. Avoid this by enabling FIPS mode only
once. There is no code in wpa_supplicant to disable FIPS mode, so once
it is enabled, it will remain enabled.
Signed-off-by: Jouni Malinen <j@w1.fi>
MD4 is not allowed in such builds, so comment out md4_vector() from the
build to force compile time failures for cases that cannot be supported
instead of failing the MD¤ operations at runtime. This makes it easier
to detect and fix accidental cases where MD4 could still be used in some
older protocols.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 94f1fe6f63 ('Remove master key
extraction from tls_connection_get_keys()') left only fetching of
server/client random, but did not rename the function and structure to
minimize code changes. The only name is quite confusing, so rename this
through the repository to match the new purpose.
Signed-off-by: Jouni Malinen <j@w1.fi>
tls_connection_get_keys() used to return TLS master secret, but that
part was removed in commit 94f1fe6f63
('Remove master key extraction from tls_connection_get_keys()'). Since
then, there is no real need for preventing this function from being used
in FIPS mode.
Signed-off-by: Jouni Malinen <j@w1.fi>
The bytes pointer was not reset back to the beginning of the buffer when
mixing in additional entropy from the crypto module. This resulted in
writing beyond the return buffer and not getting the required mixing of
the extra entropy for the actual return buffer.
Signed-off-by: Jouni Malinen <j@w1.fi>
It looks like the compiler version used in Android 5.0 warns about
potentially uninitialized oper_freq variable in these debug messages.
That is not really valid since this code path can be reached only if
found != 0 and in such a case, oper_freq is set. Anyway, it seems better
to avoid compiler warnings, so add an unnecessary initialization for
oper_freq for now.
Signed-off-by: Jouni Malinen <j@w1.fi>
MD5 is not allowed in such builds, so comment out md5_vector() from the
build to force compile time failures for cases that cannot be supported
instead of failing the MD5 operations at runtime. This makes it easier
to detect and fix accidental cases where MD5 could still be used in some
older protocols.
Signed-off-by: Jouni Malinen <j@w1.fi>
FIPS builds do not include support for MD4/MD5, so disable
EAP-TTLS/CHAP, MSCHAP, and MSCHAPV2 when CONFIG_FIPS=y is used.
Signed-off-by: Jouni Malinen <j@w1.fi>
MD5 is not available in CONFIG_FIPS=y builds, so use SHA1 for the EAP
peer workaround that tries to detect more robustly whether a duplicate
message was sent.
Signed-off-by: Jouni Malinen <j@w1.fi>
The OpenSSL internal AES_wrap_key() and AES_unwrap_key() functions are
unfortunately not available in FIPS mode. Trying to use them results in
"aes_misc.c(83): OpenSSL internal error, assertion failed: Low level API
call to cipher AES forbidden in FIPS mode!" and process termination.
Work around this by reverting commit
f19c907822 ('OpenSSL: Implement aes_wrap()
and aes_unwrap()') changes for CONFIG_FIPS=y case. In practice, this
ends up using the internal AES key wrap/unwrap implementation through
the OpenSSL EVP API which is available in FIPS mode. When CONFIG_FIPS=y
is not used, the OpenSSL AES_wrap_key()/AES_unwrap_key() API continues
to be used to minimize code size.
Signed-off-by: Jouni Malinen <j@w1.fi>
This avoids a call to hmac_md5() to fix the build. The EAPOL-Key frame
TX code is not applicable for any FIPS mode operation, so the simplest
approach is to remove this from the build.
Signed-off-by: Jouni Malinen <j@w1.fi>
When processing a GO Negotiation Request and Response, if local driver
supports the preferred channel list extension, then:
- Check if peer's preference for operating channel is already included
in our preferred channel list and if so, take the oper_channel as is.
- If peer's preference for operating channel is not in local device's
preferred channel list and peer device has provided its preferred
frequency list in the GO Negotiation Request/Response, then find a
channel that is common for both preferred channel lists and use it
for oper_channel.
- If peer's preference for operating channel is not in local device's
preferred channel list and peer device doesn't use preferred channel
list extension, i.e., no preferred channel list in GO Negotiation
Request/Response, then look for a channel that is common for local
device's preferred channel list and peer's list of supported channels
and use it for oper_channel.
- In case no common channel is found, use the peer's preference for
oper_channel as is.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds a callback function that can be used from the P2P module to
request the current preferred list of operating channels from the
driver.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Add an extra condition to omit operating channel preference when
building GO Negotiation Response. If the local device supports the
preferred frequency list extension, then when sending a GO Negotiation
Response frame, advertise the preferred operating channel unless local
device is assuming the P2P Client role and has an empty preferred
frequency list, in which case local device can omit its preference for
the operating channel.
This change helps make use of the preferred frequency list and the
calculated best channel for both negotiating parties of the P2P
connection.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When sending a GO Negotiation Request, advertise the preferred frequency
list in a new vendor specific IE. This can be used to extend the
standard P2P behavior where a single preferred channel can be advertised
by allowing a priority list of channels to be indicated.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If the driver supports the preferred frequency list extension, use this
information from the driver when no explicitly configured preference
list (p2p_pref_chan) is present for P2P operating channel selection.
This commit adds this for GO Negotiation and Invitation use cases.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds parsing of QCA vendor specific elements and as the first such
element to be parsed, stores pointers to the preferred frequency list
element that can be used to enhance P2P channel negotiation behavior.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The new enum qca_vendor_element_id registry is used to manage
assignments of vendor specific elements using the QCA OUI 00:13:74. The
initial assignment is for the purpose for extending P2P functionality
for cases where the wpa_supplicant implementation is used by both ends
of an exchange.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Extend the QCA vendor specific nl80211 interface to query the preferred
frequency list from driver and add a new wpa_cli command to query this
information.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Upon GO Negotiation completion, if the remote peer becomes GO, send a
hint event over QCA vendor specific interface to inform the driver of
the likely operating channel of the P2P GO.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Extend the nl80211 interface command "driver status" to retrieve the
concurrency capabilities from the driver using the QCA vendor
extensions.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When ACS is offloaded to device driver and the hw_mode parameter is set
to any, the current_mode structure is NULL which fails the ACS command.
Fix this by populating the ACS channel list with channels from all bands
when current_mode is NULL.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Add vendor command to pass SET setband command to the driver and read
the updated channel list from driver when this notification succeeds.
This allows the driver to update its internal channel lists based on
setband configuration.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The issue with the special form of TLS session tickets has been fixed in
the OpenSSL 1.1.0 branch, so disable workaround for it. OpenSSL 1.0.1
and 1.0.2 workaround is still in place until a release with the fix has
been made.
This allows TLSv1.1 and TLSv1.2 to be negotiated for EAP-FAST with the
OpenSSL versions that support this.
Signed-off-by: Jouni Malinen <j@w1.fi>
If there is only zero-length buffer of output data in error case, mark
that as an immediate failure instead of trying to report that
non-existing error report to the server. This allows faster connection
termination in cases where a non-recoverable error occurs in local TLS
processing, e.g., if none of the configured ciphers are available.
Signed-off-by: Jouni Malinen <j@w1.fi>
EAP-TLS was already doing this, but the other TLS-based EAP methods did
not mark methodState DONE and decision FAIL on local TLS processing
errors (instead, they left the connection waiting for a longer timeout).
Signed-off-by: Jouni Malinen <j@w1.fi>
OpenSSL 1.1.0 disables the anonymous ciphers by default, so need to
enable these for the special case of anonymous EAP-FAST provisioning.
Signed-off-by: Jouni Malinen <j@w1.fi>
This is needed when enabling TLSv1.2 support for EAP-FAST since the
SSL_export_keying_material() call does not support the needed parameters
for TLS PRF and the external-to-OpenSSL PRF needs to be used instead.
Signed-off-by: Jouni Malinen <j@w1.fi>
This needs to use the new accessor functions since the SSL session
details are not directly accessible anymore and there is now sufficient
helper functions to get to the needed information.
Signed-off-by: Jouni Malinen <j@w1.fi>
This needs to use the new accessor functions for client/server random
since the previously used direct access won't be available anymore.
Signed-off-by: Jouni Malinen <j@w1.fi>
openssl_handshake() was checking only that in_data is not NULL and not
its length when determining whether to call BIO_write(). Extend that to
check the buffer length as well. In practice, this removes an
unnecessary BIO_write() call at the beginning of a TLS handshake on the
client side. This did not cause issues with OpenSSL versions up to
1.0.2, but that call seems to fail with the current OpenSSL 1.1.0
degvelopment snapshot. There is no need for that zero-length BIO_write()
call, so remove it.
Signed-off-by: Jouni Malinen <j@w1.fi>
Report the feature capability on P2PS-PROV-START and P2PS-PROV-DONE
ctrl-iface events. A feature capability value is specified as
'feature_cap=<hex>' event parameter, where <val> is a hexadecimal
string of feature capability bytes in a PD Response frame.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
On PD Request/follow-on PD Request preparation set a feature capability
CPT value of PD context.
On PD Request processing use a request CPT and service advertisement
CPT priority list to select a feature capability CPT of PD Response.
On follow-on PD Request processing use a request CPT and a CPT priority
list in PD context to select a CPT value of follow on PD Response.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add a parameter allowing to specify a value of Coordination
Protocol Transport to P2PS_PROVISION and P2PS_PROVISION_RESP commands.
Extend the p2ps_provision structure to contain cpt_priority and
cpt_mask properties and initialize them on a P2PS PD request command.
The format of the parameter:
cpt=<cpt>[:cpt]
where <cpt> is CPT name e.g. UDP or MAC. The CPT names are listed
according to their preferences to be used for a specific P2PS session.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add Coordination Transport Protocol parameter to P2P_SERVICE_ADD
asp command.
Extend p2ps_advertisement structure to contain CPT priorities
and a supported CPT bitmask.
The format of the new parameter:
cpt=<cpt>[:<cpt>]
where <cpt> is a name of the Coordination Protocol Transport.
This implementation supports two CPT names: UDP and MAC.
The order of specified CPTs defines their priorities where
the first one has the highest priority.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add an auxiliary cstr_token() function to get a token from a const char
string. The function usage syntax is similar to str_token(), but unlike
str_token() the function doesn't modify the buffer of the string. Change
str_token() function implementation to use cstr_token().
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
The foreach_fst_group() loop needs "break-if-found", not
"continue-if-not-found" to do the search iteration properly. If there
were multiple groups, the previous design could have failed to find the
interface.
Signed-off-by: Jouni Malinen <j@w1.fi>
fst_read_next_text_param() is never called with buflen <= 1, so this
separate error path is practically unreachable. Merge it with another
error path to make this a bit more compact.
Signed-off-by: Jouni Malinen <j@w1.fi>
It is possible for there to be multiple FST groups, so the hardcoded
mechanism of selecting the first one when sending out an event message
may not be sufficient. Get the interface from the caller, if available,
and if not, go through all groups in search of an interface to send the
event on.
Signed-off-by: Jouni Malinen <j@w1.fi>
It is possible for there to be multiple FST groups, so the hardcoded
mechanism of selecting the first one when sending out an event message
may not be sufficient. Get the interface from the caller, if available,
and if not, go through all groups in search of an interface to send the
event on.
Signed-off-by: Jouni Malinen <j@w1.fi>
Now that both hostapd and wpa_supplicant already enforce no duplicate
fst_attach() calls, there is no need for this check within fst_attach().
Signed-off-by: Jouni Malinen <j@w1.fi>
Dialog token is only 8 bits and maintaining u32 version of it in struct
fst_group resulted in incorrect wrap-around behavior in
fst_group_assign_dialog_token(). It was possible to assign u8
dialog_token value 0 because of this. Fix this by using u8 variable
consistently.
Signed-off-by: Jouni Malinen <j@w1.fi>
While this is always supposed to be the first element, check that this
is indeed the case instead of blindly using values from within the
element.
Signed-off-by: Jouni Malinen <j@w1.fi>
The Element ID and Length subfields are not supposed to be included in
the Length. In addition, both of these subfields needs to be filled in
even for non-zero status code cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
This extends the previous PMF (CONFIG_IEEE80211W=y) design that used
functionality from the FT (CONFIG_IEEE80211R=y) changes to work without
requiring CONFIG_IEEE80211R=y build option to be included.
Signed-off-by: Ashok Ponnaiah <aponnaia@qti.qualcomm.com>
It was possible for a registered eloop socket handler to be unregistered
and re-registered for a re-opened socket with the same fd from a timeout
or signal handler. If such a case happened with the old socket having a
pending event waiting for processing, some eloop combinations could end
up calling the new handler function with the new socket and get stuck
waiting for an event that has not yet happened on the new socket. This
happened with timeout and signal handlers with all eloop.c types. In
addition to that, the epoll case could also trigger this when a socket
handler re-registered a re-opened socket.
Fix these by checking whether there has been socket handler changes
during processing and break the processing round by going back to
select/poll/epoll for an updated result if any changes are done during
the eloop handler calls before processing the old socket results.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It was possible for the SIGINT/SIGTERM signal to be received while
processing a pending timeout/socket/signal event and then get stuck in
the following select() call before processing the signal event. If no
other events show up within the two second SIGALRM trigger, process will
be terminated forcefully even though there would have been possibility
to do clean termination assuming no operationg blocked for that two
second time.
Handle this more cleanly by checking for eloop.pending_terminate before
starting the select()/poll()/epoll_wait() wait for the following event.
Terminate the loop if pending signal handling requests termination.
In addition, make eloop_terminated() return 1 on eloop.pending_terminate
in addition to eloop.terminate since the process will be terminated
shortly and there is no point in starting additional processing.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Introduce definitions for QCA vendor specific subcommands and attributes
to support multiport concurrency.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This new mechanism can be used to combine multiple periodic AP
(including P2P GO) task into a single eloop timeout to minimize number
of wakeups for the process. hostapd gets its own periodic caller and
wpa_supplicant uses the previously added timer to trigger these calls.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, one timeout per process (by default every 30 seconds) was
used P2P peer expiration and another per-interface timeout (every 10
seconds) was used to expire BSS entries. Merge these to a single
per-process timeout that triggers every 10 seconds to minimize number of
process wakeups due to periodic operations.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, this resulted in unnecessary wait and retransmission of the
previous EAP-Request. Change that to trigger immediate transmission of
EAP-Failure and disconnection since the EAP method cannot really recover
from this state.
Signed-off-by: Jouni Malinen <j@w1.fi>
This functionality was removed from the Host AP driver in May 2003, so
there is not any point in maintaining this in hostapd either.
Signed-off-by: Jouni Malinen <j@w1.fi>
The space separator between the command and the parameter was not
skipped properly and the first integer ended up being interpreted as 0
in all cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
fst_session_is_in_progress() is already checked as part of
fst_find_session_in_progress() before calling
fst_session_handle_action(). This is the only call path that can reach
fst_session_handle_tear_down() and as such, fst_session_is_in_progress()
cannot return 0 here.
Signed-off-by: Jouni Malinen <j@w1.fi>
There was a mix of EINVAL and -EINVAL returns through the FST
implementation. Make this more consistent by always returning -EINVAL in
error cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
The caller is not expected to free or modify the value since this is
returning a reference to a buffer maintained by the upper layer.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to add new functions with more or less identical
functionality of an already available helper function.
Signed-off-by: Jouni Malinen <j@w1.fi>
This extends the hostapd global control interface ADD command to allow
driver wrapper to be specified ("ADD <ifname> <ctrl_iface> <driver>").
Previously, this case that did not use a configuration file allowed only
the default driver wrapper to be used.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This experimental support for Texas Instruments C compiler was never
fully completed and it has not really been used in close to ten years,
so drop this to simply the header files.
Signed-off-by: Jouni Malinen <j@w1.fi>
Use a local variable and check the record payload length validity before
writing it into record->payload_length in hopes of getting rid of a
bogus static analyzer warning. The negative return value was sufficient
to avoid record->payload_length being used, but that seems to be too
complex for some analyzers. (CID 122668)
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Typecasting &mgmt->u.action.u.fst_action to a struct pointer for various
FST Action frame payloads seemed to be triggering static analyzer
warnings about bounds checking since sizeof(mgmt->u.action.u.fst_action)
== 1 even though that is really a variable length structure. Try to
avoid this by calculating the pointer for the beginning of the frame
instead of variable length struct. (CID 125642)
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It was possible for the previously set SSID to remain in place between
test cases (e.g., in sequence "p2ps_connect_adv_go_persistent
p2p_set_ssid_postfix") and the P2P SSID postfix not getting used
properly. Make this less likely to occur by clearing the old SSID in
p2p_flush().
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
These are confusing when the style used with the couple of FST IE checks
differs from the rest of hostapd/wpa_supplicant implementation.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
There is no need for this function to be an inline function in a header
file since it is used only within fst_group.c.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Commit 717333f4e4 ('FST: Add the Fast
Session Transfer (FST) module') performed incorrect frame length
validation for Setup Request (did not remove 24+1 header from
consideration) and did not include payload validation for other FST
Action frames. Fix these by explicitly verifying that the payload of
these frames is sufficiently long before reading the values from there.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
There is no need to waste resources for this packet socket if FT-over-DS
is disabled or when operating P2P GO or AP mode in wpa_supplicant.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds the FST IEs received from the FST module into Beacon, Probe
Response, and (Re)Association Response frames.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Fast Session Transfer (FST) is the transfer of a session from a channel
to another channel in a different frequency band. The term "session"
refers to non-physical layer state information kept by a pair of
stations (STAs) that communicate directly (i.e., excludes forwarding).
The FST is implemented in accordance with IEEE Std 802.11ad-2012.
Definitions
* FST interface - an interface for which FST functionality is enabled
* FST group - a bunch of FST interfaces representing single
multi-band STA
* FST peer - a multi-band capable STA connected
* FST module - multi-band operation functionality implemented in
accordance with IEEE Std 802.11ad-2012 (see 10.32
Multi-band operation) as a part of hostapd/wpa_supplicant
* FST manager - an external application that implements custom FST
related logic, using the FST module's interfaces
accessible via CLI or D-Bus
This commit introduces only the FST module. Integration of the FST
module into the hostapd/wpa_supplicant and corresponding CLI/D-Bus
interfaces and FST related tests are covered in separate commits.
FST manager application is out of scope of these commits.
As FST aggregates a few interfaces into FST group, the FST module uses
global CLI for both commands and notifications. It also exposes
alternative non-interface based D-Bus subtree for this purposes.
Configuration and Initialization
* FST functionality can enabled by compilation flag (CONFIG_FST)
* hostapd/wpa_supplicant controlling multiple interfaces are used for
FST
* once enabled by compilation, the FST can be enabled for specific
interfaces in the configuration files
* FST interfaces are aggregated in FST groups (fst_group_id config file
entry), where each FST group:
- represents one multi-band device
- should have two or more FST interfaces in it
* priority (fst_priority config file entry) must be configured for each
FST interface. FST interface with higher priority is the interface FST
will always try to switch to. Thus, for example, for the maximal
throughput, it should be the fastest FST interface in the FST setup.
* default Link Loss Timeout (LLT) value can be configured for each FST
interface (fst_llt config file entry). It represents LLT to be used
by FST when this interface is active.
* FST interfaces advertise the Multi-band capability by including the
Multi-band element in the corresponding frames
FST CLI commands:
* fst list_groups - list FST groups configured.
* fst list_ifaces - list FST interfaces which belong to specific group
* fst iface_peers - list Multi-Band STAs connected to specific interface
* fst list_sessions - list existing FST sessions
* fst session_get - get FST session info
* fst session_add - create FST session object
* fst session_set - set FST session parameters (old_iface, new_iface,
peer_addr, llt)
* fst session_initiate - initiate FST setup
* fst session_respond - respond to FST setup establishemnt attempt by
counterpart
* fst session_transfer - initiate FST switch
* fst session_teardown - tear down FST Setup but leave the session object
for reuse
* fst session_remove - remove FST session object
FST CLI notifications:
* FST-EVENT-PEER - peer state changed (CONNECT/DISCONNECT)
* FST-EVENT-SESSION - FST session level notification with following
sub-events:
- EVENT_FST_SESSION_STATE - FST session state changed
- EVENT_FST_ESTABLISHED - previously initiated FST session became
established
- EVENT_FST_SETUP - new FST session object created due to FST session
negotiation attempt by counterpart
All the FST CLI commands and notifications are also implemented on D-Bus
for wpa_supplicant.
IEEE 802.11 standard compliance
FST module implements FST setup statemachine in compliance with IEEE
802.11ad (P802.11-REVmc/D3.3), as it described in 10.32 Multi-band
operation (see also Figure 10-34 - States of the FST setup protocol).
Thus, for example, the FST module initiates FST switch automatically
when FST setup becomes established with LLT=0 in accordance with
10.32.2.2 Transitioning between states.
At the moment, FST module only supports non-transparent STA-based FST
(see 10.32.1 General).
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This helper function can be used to check whether a MAC address is a
multicast (including broadcast) address.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit implements hostapd global control interface notifications
infrastructure. hostapd global control interface clients issue
ATTACH/DETACH commands to register and deregister with hostapd
correspondingly - the same way as for any other hostapd/wpa_supplicant
control interface.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, hostapd only supported the case of EAPOL frames receiving
from interfaces enslaved into bridge. This commit adds support for any
Linux master (teaming, openvswitch, bonding, etc.) to be detected.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This new control interface command "EAPOL_REAUTH <MAC address>
<parameter> <value>" can be used to implement the IEEE 802.1X PAE
Set Authenticator Configuration operation.
Signed-off-by: Jouni Malinen <j@w1.fi>
This new control interface command "EAPOL_REAUTH <MAC address>" can be
used to implement the IEEE 802.1X PAE Reauthenticate operation.
Signed-off-by: Jouni Malinen <j@w1.fi>
If WPA2-Enterprise connection with full EAP authentication (i.e., no
PMKSA caching used) results in a PMKID that does not match the one the
AP/Authenticator indicates in EAPOL-Key msg 1/4, there is not much point
in trying to trigger full EAP authentication by sending EAPOL-Start
since this sequence was immediately after such full authentication
attempt.
There are known examples of authentication servers with incorrect MSK
derivation when TLS v1.2 is used (e.g., FreeRADIUS 2.2.6 or 3.0.7 when
built with OpenSSL 1.0.2). Write a clear debug log entry and also send
it to control interface monitors when it looks likely that this case has
been hit. After doing that, stop the connection attempt by
disassociating instead of trying to send out EAPOL-Start to trigger new
EAP authentication round (such another try can be tried with a new
association).
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds a new STATUS command field "eap_tls_version" that shows the
TLS version number that was used during EAP-TLS/TTLS/PEAP/FAST exchange.
For now, this is only supported with OpenSSL.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new phase1 config parameter value tls_disable_tlsv1_0=1 can now be
used to disable use of TLSv1.0 for a network configuration. This can be
used to force a newer TLS version to be used. For example,
phase1="tls_disable_tlsv1_0=1 tls_disable_tlsv1_1=1" would indicate that
only TLS v1.2 is accepted.
Signed-off-by: Jouni Malinen <j@w1.fi>
While this is already enforced in practice due to the limits on the
maximum control interface command length and total_length bounds
checking here, this explicit check on payload_length value may help
static analyzers understand the code better. (CID 122668)
Signed-off-by: Jouni Malinen <j@w1.fi>
It was possible for the 32-bit record->total_length value to end up
wrapping around due to integer overflow if the longer form of payload
length field is used and record->payload_length gets a value close to
2^32. This could result in ndef_parse_record() accepting a too large
payload length value and the record type filter reading up to about 20
bytes beyond the end of the buffer and potentially killing the process.
This could also result in an attempt to allocate close to 2^32 bytes of
heap memory and if that were to succeed, a buffer read overflow of the
same length which would most likely result in the process termination.
In case of record->total_length ending up getting the value 0, there
would be no buffer read overflow, but record parsing would result in an
infinite loop in ndef_parse_records().
Any of these error cases could potentially be used for denial of service
attacks over NFC by using a malformed NDEF record on an NFC Tag or
sending them during NFC connection handover if the application providing
the NDEF message to hostapd/wpa_supplicant did no validation of the
received records. While such validation is likely done in the NFC stack
that needs to parse the NFC messages before further processing,
hostapd/wpa_supplicant better be prepared for any data being included
here.
Fix this by validating record->payload_length value in a way that
detects integer overflow. (CID 122668)
Signed-off-by: Jouni Malinen <j@w1.fi>
One possible outcome of the P2PS PD is P2P GO/P2P Client. In this case,
one peer becomes a P2P GO and the P2P Client joins it. Since multiple
GOs may run simultaneously on the same P2P Device, the P2P Client should
join using the intended interface address.
To be able to find the device by the intended interface address, save it
during the PD.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
If a device may be an explicit GO, it adds the GO details in the PD
Request. First, we try to reuse an active GO. If it is not present, we
try to reuse a non-active persistent group. In the latter case, if a
dedicated P2P interface is needed, the intended address should be that
of the pending interface. However, the wpas_get_go_info() provided the
ssid->bssid address, which is the address of the P2P device. This might
result in an incorrect intended interface attribute in the PD Request in
case a separate group interface is used.
Fix this by setting group_iface variable to true only if a dedicated
interface should be used and set the attribute accordingly.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Validate the PD Response frame contents more thoroughly when it is used
for P2PS.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
When persistent group is used and the peer is GO in this group,
intended interface attribute should be added to PD request/response.
Not doing so violates the spec.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
When device A sends PD response to device B, device A should save
wps_prov_info for device B. Not doing so would result in a redundant and
incorrect PD flow, e.g., when upon PROV-DISC-DONE event device B starts
a GO and device A should join it.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
In case of a P2PS PD, allow keypad, display, and P2PS WPS config
methods. For a legacy PD, allow keypad, display, and pushbutton methods.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add 'else if' to P2PS status verification to prevent a redundant
condition checking. The first 'if' condition is true only if
status == P2P_SC_SUCCESS || status == P2P_SC_SUCCESS_DEFERRED.
while the second condition checks:
status != P2P_SC_SUCCESS &&
status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE &&
status != P2P_SC_SUCCESS_DEFERRED
Thus, the two conditions are mutually exclusive and 'else if' can be
used if this case.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Delete redundant comparison of msg.wps_config_methods with
dev->req_config_methods in p2p_process_prov_disc_resp() since it's
already done early in this function. Also, the second comparison
doesn't make too much sense: it can happen after a possible
p2p_reset_pending_pd() call setting dev->req_config_methods to 0.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
When wpa_supplicant receives a PD Response with reject status it
generated P2P-PROV-DISC-FAILURE event without adv_id and adv_mac
parameters. Fix this by adding these parameters to the
wpas_prov_disc_fail() function call.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
This fixes the incomplete driver_hostap.c change from commit
5d180a7739 ('drivers: Add freq parameter
to send_mlme() function') that did not take into account the internal
callers.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Previously, only CONNECTING->CONNECTING case ended up sending out an
EAPOL-Start frame to avoid sending the unnecessary initial EAPOL-Start.
However, this optimization prevented new EAPOL-Start from being
initiated when leaving the HELD state. Allow that case to trigger
immediate EAPOL-Start transmission to speed up connection.
Signed-off-by: Jouni Malinen <j@w1.fi>
The only time the PIN should fail is when we initialize the TLS
connection, so it doesn't really make sense to get rid of the PIN just
because some other part of the handshake failed.
This is a followup to commit fd4fb28179
('OpenSSL: Try to ensure we don't throw away the PIN unnecessarily').
Signed-off-by: Mike Gerow <gerow@google.com>
The IPv6 address in the frame buffer may not be 32-bit aligned, so use a
local copy to align this before reading the address with 32-bit reads
(s6_addr32[]).
Signed-off-by: Jouni Malinen <j@w1.fi>
The 32-bit version of payload length field may not be 32-bit aligned in
the message buffer, so use WPA_GET_BE32() to read it instead of ntohl().
Signed-off-by: Jouni Malinen <j@w1.fi>
64-bit builds with CONFIG_WPA_TRACE=y resulted in the wpabuf pointers
getting misaligned (only 32-bit aligned) and that would result in reads
and writes of unaligned size_t values. Avoid this by indicating explicit
alignment requirement for wpabuf_trace to 8 octets (i.e., there will be
extra four octets of padding in case of 64-bit builds).
Similarly, struct os_alloc_trace resulted in some potential misalignment
cases, e.g., when CONFIG_ACS=y uses a 'long double' variable within
struct hostapd_channel_data. Avoid misalignment issues with explicit
alignment indication.
Signed-off-by: Jouni Malinen <j@w1.fi>
src/utils/list.h ended up defining a local version of offsetof() due to
stddef.h not getting included. This resulted in unnecessary warnings
from ubsan related to "dereferencing" of a NULL pointer.
Signed-off-by: Jouni Malinen <j@w1.fi>
The input parameter ended up being converted to long int instead of int,
so use an explicit typecase to get rid of the compiler warning.
Signed-off-by: Jouni Malinen <j@w1.fi>
Use explicit typecasting to avoid implicit conversion warnings in cases
where enum eap_erp_type is used in functions taking an EapType argument.
Signed-off-by: Jouni Malinen <j@w1.fi>
The FT-specific check for valid group cipher in wpa_ft_gen_req_ies() was
not up-to-date with the current list of supported ciphers. Fix this by
using a generic function to determine validity of the cipher. In
practice, this adds support for using CCMP-256 and GCMP-256 as the group
cipher with FT.
Signed-off-by: Jouni Malinen <j@w1.fi>
This mechanism to figure out TLS library capabilities has not been used
since commit fd2f2d0489 ('Remove
EAP-TTLSv1 and TLS/IA') (Sep 2011).
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to have separate return statements for these corner
cases that are unlikely to be hit in practice.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to have separate return statements for these corner
cases that are unlikely to be hit in practice.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new TEST_FAIL and GET_FAIL control interface commands can be used
similarly to the earlier TEST_ALLOC_FAIL/GET_ALLOC_FAIL design. The new
version is more generic framework allowing any function to be annotated
for failure testing with the TEST_FAIL() macro. This mechanism is only
available in builds with CONFIG_WPA_TRACE_BFD=y and
CONFIG_TESTING_OPTIONS=y. For other builds, the TEST_FAIL() macro is
defined to return 0 to allow the compiler to remove the test code from
normal production builds.
As the first test site, allow os_get_random() to be marked for failing
based on call backtrace.
Signed-off-by: Jouni Malinen <j@w1.fi>
Do not allow 40 MHz co-ex PRI/SEC switch to force us to change our PRI
channel if we have an existing connection on the selected PRI channel
since doing multi-channel concurrency is likely to cause more harm than
using different PRI/SEC selection in environment with multiple BSSes on
these two channels with mixed 20 MHz or PRI channel selection.
Signed-off-by: Jouni Malinen <j@w1.fi>
Fix a condition when Advertised Service Info Attribute is added to
a probe response in p2p_buf_add_service_instance(). The issue is
that a 'found' value is increased even if 'test' and 'adv->hash' hashes
are different. As result 'found' may have a non-zero value when an
attribute data length is 0. In this cause an empty attribute is about to
be added. Fixing it by eliminating 'found' and checking 'total_len'
containing a real number of bytes added to Advertised Service Info
Attribute.
This fixes an issue from commit 50a9efe713
('P2PS: Fix Probe Response frame building in error cases').
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
The cwmin/cwmax parameters were limited more than is needed. Allow the
full range (0..15 for wmm_ac_??_{cwmin,cwmax} and 1..32767 for
tx_queue_data?_{cwmin,cwmax}) to be used.
Signed-off-by: Jouni Malinen <j@w1.fi>
The current P802.11 description of SAE uses "1 < element < p" as the
required range. However, this is not correct and does not match the
Dragonfly description of "1 < element < p-1". SAE definition will need
to change here. Update the implementation to reject p-1 based on the
correct rule here.
Signed-off-by: Jouni Malinen <j@w1.fi>
It was possible for the P2PS Probe Response frame to go out on the
channel on which a Probe Request frame was reported even when we are
just about to start Listen mode on another channel. This could result in
the peer device using incorrect channel for us. Fix this by skipping the
response in this special case while waiting for Listen mode to start.
This showed up as a hwsim test failure with test sequence "gas_fragment
p2ps_connect_display_method_nonautoaccept" in cases where the dev[0]
Listen channel was not same as the AP operating frequency in the GAS
test.
Signed-off-by: Jouni Malinen <j@w1.fi>
IEEE Std 802.11-2012 description of SAE does not require this, i.e., it
describes the requirement as 0 < scalar < r for processing the Commit
message. However, this is not correct and will be changes to 1 < scalar
< r to match the Dragonfly description so that a trivial secret case
will be avoided explicitly.
This is not much of an issue for the locally generated commit-scalar
since it would be very unlikely to get the value of 1. For Commit
message processing, a peer with knowledge of the password could
potentially force the exchange to expose key material without this
check.
Signed-off-by: Jouni Malinen <j@w1.fi>
This provides more information to upper layer programs on what happens
with connection attempts in cases where the enabled networks are not
found in scan results.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
wpa_supplicant has stub functions if the external p2p symbols are
unavailable, but the build still fails if the
wpa_driver_nl80211_driver_cmd symbol is missing. Fix this by leaving the
function pointer NULL. This is safe because wpa_drv_driver_cmd() performs
a NULL check.
Signed-off-by: Kevin Cernekee <cernekee@google.com>
If BOARD_HOSTAPD_PRIVATE_LIB is not used on an Android build, we will
need to replace both the p2p functions *and* wpa_driver_nl80211_driver_cmd
in order to successfully link. Let's make the name more generic so it is
more obvious what it is used for.
Suggested-by: Dmitry Shmidt <dimitrysh@google.com>
Signed-off-by: Kevin Cernekee <cernekee@google.com>
In case memory allocation fails, data->pac_opaque_encr_key may be NULL
and lead to possible crash.
Signed-off-by: Maneesh Jain <maneesh.jain@samsung.com>
Even though this OpenSSL function is documented as returning "1 if point
if on the curve and 0 otherwise", it can apparently return -1 on some
error cases. Be prepared for that and check explicitly against 1 instead
of non-zero.
Signed-off-by: Jouni Malinen <j@w1.fi>
If PWE is discovered before the minimum number of loops (k) is reached,
the extra iterations use a random "password" to further obfuscate the
cost of discovering PWE.
Signed-off-by: Jouni Malinen <j@w1.fi>
This replaces the earlier IEEE Std 802.11-2012 algorithm with the design
from P802.11-REVmc/D4.0. Things brings in a blinding technique for
determining whether the pwd-seed results in a suitable PWE value.
Signed-off-by: Jouni Malinen <j@w1.fi>
This allows the IKE groups 27-30 (RFC 6932) to be used with OpenSSL
1.0.2 and newer. For now, these get enabled for SAE as configurable
groups (sae_groups parameter), but the new groups are not enabled by
default.
Signed-off-by: Jouni Malinen <j@w1.fi>
draft-irtf-cfrg-dragonfly recommends implementation to set the security
parameter, k, to a value of at least 40. This will make PWE generation
take significantly more resources, but makes it more likely to hide
timing differences due to different number of loops needed to find a
suitable PWE.
Signed-off-by: Jouni Malinen <j@w1.fi>
This check explicitly for reflection attack and stops authentication
immediately if that is detected instead of continuing to the following
4-way handshake that would fail due to the attacker not knowing the key
from the SAE exchange.
Signed-off-by: Jouni Malinen <j@w1.fi>
OpenSSL 0.9.8 (and newer) includes SSL_CTX_get_app_data() and
SSL_CTX_set_app_data(), so there is no need to maintain this old
OPENSSL_SUPPORTS_CTX_APP_DATA backwards compatibility design.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, it would have been possible for va_end(args) to be called
twice in case mp_init() fails. While that may not cause issues on number
of platforms, that is not how va_start()/va_end() are supposed to be
used. Fix this by returning from the function without using va_end()
twice on the same va_list args.
Signed-off-by: Jouni Malinen <j@w1.fi>
The construction used here to figure out the offset of variable length
IEs in Probe Request frames was a bit odd looking and resulted in a
warning from a static analyzer, so replace it with more standard use of
offsetof().
Signed-off-by: Jouni Malinen <j@w1.fi>
The flags argument is used to indicate a failure case (0x80) which
allows erp == NULL. This may be a bit too difficult combination for
static analyzers to understand, so add an explicit check for !erp as
another condition for returning from the function before the erp pointer
gets dereferenced without checking it.
Signed-off-by: Jouni Malinen <j@w1.fi>
drv cannot be NULL here (it is dereferenced even on the preceding line)
and anyway, os_free(NULL) is allowed, so remove the redundant check.
Signed-off-by: Jouni Malinen <j@w1.fi>
The eap argument to this function is never NULL and the earlier
ieee802_1x_learn_identity() call is dereferencing it anyway, so there is
no point in checking whether it is NULL later in the function.
Signed-off-by: Jouni Malinen <j@w1.fi>
This needs to find the PRI channel also in cases where the affected
channel is the SEC channel of a 40 MHz BSS, so need to include the
scanning coverage here to be 40 MHz from the center frequency. Without
this, it was possible to miss a neighboring 40 MHz BSS that was at the
other end of the 2.4 GHz band and had its PRI channel further away from
the local BSS.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to have separate return statements for these corner
cases that are unlikely to be hit in practice.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, the common WLAN-* RADIUS attributes were added only when WPA
or WPA2 was used. These can be of use for OSEN as well, so include them
in that case, too.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to have a separate "fail silently" case for wpa_ie_len
== 0. That condition does not seem to be reachable and even if it were,
the following "ie len too short" case will result in the exact same
return value.
Signed-off-by: Jouni Malinen <j@w1.fi>
As far as IEEE 802.11 standard is concerned, WEP is deprecated, but at
least in theory, allowed as a group cipher. This option is unlikely to
be deployed anywhere and to clean up the implementation, we might as
well remove all support for this combination.
Signed-off-by: Jouni Malinen <j@w1.fi>
Sending a wowlan configuration command can be done on any wireless
interface (not only netdev), as it is a device configuration and not
interface configuration specific. Fix the code to allow it to be
sent on any interface.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Android libnl_2 implementation added support for "nl80211" name in
commit 'libnl_2: Extend genl_ctrl_resolve() to support "nl80211" name'
in July 2012 which got included in Android 4.2. It is fine to drop this
old Android ICS workaround from wpa_supplicant now.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
p2p_process_nfc_connection_handover() allocates msg memory in the parser
and might return before memory is released if the received message is
not valid.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
If key derivation fails, there is no point in trying to continue
authentication. In theory, this could happen if memory allocation during
TLS PRF fails.
Signed-off-by: Jouni Malinen <j@w1.fi>
Free tmp_out before returning to prevent memory leak in case the second
memory allocation in openssl_tls_prf() fails. This is quite unlikely,
but at least theoretically possible memory leak with EAP-FAST.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
org.wi-fi.wfds service is not a replacement for non-WFA service matches.
Do not try to replace the results with that if there is not sufficient
room for the response. Instead, reply with all the matching services
that fit into the message. org.wi-fi.wfds is the first entry in the list
(if matching request/service is present), so it won't get overridden by
other services.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The service hash for org.wi-fi.wfds is supposed to match only if the
device has a WFA defined org.wi-fi.wfds.* service. Verify that before
adding org.wi-fi.wfds to the response.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Probe Response building is already doing service matching and there is
no need to do this in both places, so simplify the p2p_reply_probe()
implementation.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When doing initial processing of Probe Request frame service hashes, the
previous implementation dropped all other hash values if a hash for
org.wi-fi.wfds was included. This is not correct, since that is not a
full wildcard of all services (it only matches WFA defined
org.wi-fi.wfds.* services).
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This "wildcard" match is for WFA specified org.wi-fi.wfds.* services,
not for all services. Verify that there is a really matching service
being advertised instead of assuming this "wildcard" matches if any
services are advertised.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The org.wi-fi.wfds "wildcard" is not a full wildcard of all service
names and as such, it must not remove other service name hash values
from the Probe Request frames.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
p2ps_gen_hash() has a limit on service names based on the temporary
buffer from stack. Verify that the service name from the local P2P_FIND
command is short enough to fix into that buffer.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Quoting P2PS specification: "If multiple Service Hash values are
included in the Probe Request frame, then the ASP shall find a match for
each Service Hash, and it shall send a Probe Response frame with the
information listed in this section for all matched Service Hashes." This
commit changes handling of wildcard hash matching by adding a
wildcard 'org.wi-fi.wfds' info together with the other hash matches.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add auxiliary functions to write a single advertised service info record
into a wpabuf and to find P2PS wildcard hash in a received hash
attribute. Re-factor p2p_buf_add_service_instance() function to allow
adding new wildcard types in future commits.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
When hostapd or wpa_supplicant is run in debug more with key material
prints allowed (-K on the command line), it is possible for passwords
and keying material to show up in debug prints. Since some of the debug
cases end up allocating a temporary buffer from the heap for processing
purposes, a copy of such password may remain in heap. Clear these
temporary buffers explicitly to avoid causing issues for hwsim test
cases that verify contents of memory against unexpected keys.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Avoid using p2p_data::query_hash for both Probe Request frame processing
and for hashes specified by p2p_find. It's resolved by use of local
query_hash and query_count variables in p2p_reply_probe().
Since p2p_data::query_hash is used only for seek hash values rename
p2p_data::query_hash to p2ps_seek_hash.
Delete p2p_data::query_count since it's not needed anymore.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Commit 86bd36f0d5 ('Add generic mechanism
for adding vendor elements into frames') introduced a mechanism to add
vendor elements into various frames, but missed the addition to the
Invitation Response frame. This commit addresses the same.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This variable is used locally only in the p2p_reply_probe() function.
The value of this variable is valid only in the context of the single
Probe Request message handling and doesn't make much sense in p2p
context.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Free a PD context with a function encapsulating both os_free() call and
setting a PD context pointer to NULL.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
A P2P Client may be discoverable and reply to Probe Request frames,
while at the same time the P2P GO would also be discoverable and include
the P2P Client information in the P2P Group Info attribute of the Probe
Response frames.
If a seeker constantly hears the Probe Response frames from a P2P Client
and then from the GO, but handles them in the opposite order (due to
scan results ordering), the more valuable Probe Response frame from the
P2P Client will be ignored. Fix this by defining a threshold (1 second)
during which the direct Probe Response frame will be preferred over the
information acquired from the GO and will not be considered as old.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
When adding group clients to the P2P peer list, use the driver provided
BSS entry timestamp instead of the current time. Otherwise, the time
comparison which is made in p2p_add_device() doesn't make sense.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
If the RX frequency of the Probe Request frame is known, specify it when
sending the Probe Response frame. This is needed when the Probe Request
frame is received on another virtual interface, for example, when a GO
or P2PS client are discoverable on the group operating channel.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Change send_mlme() API to allow sending management frames on a specific
channel, overriding the internal driver decision.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
