Previously, it was possible for some corner cases to leave the WPA
authenticator state machine running if PMK could not be derived. Change
this to forcefully disconnect the STA to get more consistent behavior
and faster notification of the error.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This type of error reporting cases should use wpa_printf() to get
consistent debug logging behavior.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This modifies struct wpa_ptk to allow the length of KCK and KEK to be
stored. This is needed to allow longer keys to be used, e.g., with
Suite B 192-bit level.
Signed-off-by: Jouni Malinen <j@w1.fi>
In ieee802_1x_decapsulate_radius(), eap_server_get_name() may return
NULL, and it could be dereferenced depending on printf implementation.
Change it to return "unknown" instead for the case of no matching EAP
method found. This makes it easier for the callers to simply print this
in logs (which is the only use for this function).
Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Add the possibility to define a subset of channels used by the ACS
engine when not operating on DFS channels.
Signed-off-by: Adrien Decostre <ad.decostre@gmail.com>
If the inactivity check returns that there is no entry remaining for the
STA in the kernel, drop the STA in hostapd as well.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
This extends Disconnect-Request processing to check against PMKSA cache
entries if no active session (STA association) match the request.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
dot1xAuthSessionId was previously used to make Acct-Session-Id available
through the control interface. While there is no IEEE 802.1X MIB
variable for Acct-Multi-Session-Id, it is useful to make this value
available as well.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, the first matching STA was picked. That is not really the
design in RFC 5176, so extend this matching code to go through all
specified session identification attributes and verify that all of them
match. In addition, check for a possible case of multiple sessions
matching. If such a case is detected, return with Disconnect-NAK and
Error-Code 508 (multiple session selection not supported).
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Commit e7d0e97bdb ('hostapd: Add vendor
specific VHT extension for the 2.4 GHz band') resulted in a compiler
warning regarding comparison between signed and unsigned integers at
least for 32-bit builds.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows vendor specific information element to be used to advertise
support for VHT on 2.4 GHz band. In practice, this is used to enable use
of 256 QAM rates (VHT-MCS 8 and 9) on 2.4 GHz band.
This functionality is disabled by default, but can be enabled with
vendor_vht=1 parameter in hostapd.conf if the driver advertises support
for VHT on either 2.4 or 5 GHz bands.
Signed-off-by: Yanbo Li <yanbol@qti.qualcomm.com>
Add the t0 retransmission timer as specified by IEEE Std 802.11-2012,
11.3.8.4. This makes SAE much more likely to succeed in the case of lost
frames.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
When performing SAE authentication in mesh, one station may
initiate authentication by sending a COMMIT as soon as a peer
candidate is discovered. Previously we did this in mesh_rsn.c,
but this left some of the state initialization in a different
part of the code from the rest of the state machine, and we may
need to add other initializations here in the future, so move
that to a more central function.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
The local conf pointer needs to be cleared once it gets assigned to
hapd_iface to avoid double-free of the configuration data on error path.
Signed-off-by: Jouni Malinen <j@w1.fi>
The per-BSS configuration information needs to be freed if hostapd fails
to add a new interface for a BSS added with "ADD bss_config=..."
command.
Signed-off-by: Jouni Malinen <j@w1.fi>
If hostapd_alloc_bss_data() failed to allocate the struct hostapd_data
instance, dynamic interface addition path ended up trying to dereference
freed memory due to incorrect cleanup steps. Fix this by decrementing
the interface count when the newly added interface is removed. In
addition, make the setup more robust by clearing all changes within
hostapd_data_alloc() if any of the allocations fails.
Signed-off-by: Jouni Malinen <j@w1.fi>
It was possible to add WPS vendor extensions through the D-Bus
WPSVendorExtensions setter, but these extensions were not freed when the
P2P GO was stopped or when replacing previously configured extensions.
Signed-off-by: Jouni Malinen <j@w1.fi>
Some of the struct hostapd_data variables get initialized with allocated
memory in the P2P GO case even before hapd->started has been set to 1.
As such, hostapd_free_hapd_data() needs to free these even if
!hapd->stated.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is a possible race condition between receiving the
NEW_PEER_CANDIDATE event and the Authentication frame from the peer.
Previously, if the Authentication frame RX event was indicated first,
that frame got dropped silently. Now, this frame is still dropped, but a
copy of it is stored and the frame gets processed on the following
NEW_PEER_CANDIDATE event if that is received for the same peer within
two seconds.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 587d60d2b7 ('Add AP mode support
for HT 20/40 co-ex Action frame') added processing of co-ex report, but
did not include proper bounds checking or IE type checking for the
payload. Furthermore, this was not ready for the possible extensibility
of the 20/40 BSS Coexistence element.
Fix these by checking IE ids for both elements and doing more
apprioriate bounds checking for the element lengths to avoid potentially
reading beyond the frame buffer. Though, the event receive buffer in
both libnl and driver_nl80211_monitor.c is sufficiently large to make it
very unlikely that the maximum read of about 260 bytes beyond the end of
the Action frame would really have any chances of hitting the end of the
memory buffer, so the practical effect of missing bounds checking would
have been possibly accepting an invalid report frame and moving to 20
MHz channel unnecessarily.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 5ce3ae4c8f tried to clean up
fetching a pointer to the action code field, but it forgot to add
IEEE80211_HDRLEN to the pointer. This resulted in the coex report
elements being read from too early in the frame.
Signed-off-by: Jouni Malinen <j@w1.fi>
These hostapd configuration parameter was left at the default values
(WPA-PSK/TKIP) even for cases where WPA was disabled. While these
parameters are not really used much in non-WPA cases, they do get used
for one corner case in nl80211 configuration to disable encryption of
EAPOL frames in IEEE 802.1X WEP case.
Signed-off-by: Jouni Malinen <j@w1.fi>
While other authentication algorithms mark Status Code as being Reserved
in the case of the transaction number 1, SAE does not. Check that the
Status Code indicates success before creating SAE state. In addition,
fix the mesh anti-clogging token request parsing on big endian CPUs.
Transaction number 2 (confirm) can also have non-zero Status Code to
report an error. Those should be processed, but not replied to with yet
another error message. This could happen in mesh case. Avoid a loop of
error messages by dropping the non-success case without additional
response.
In addition, don't reply to unknown transaction numbers if the status
code is non-zero. This avoids a loop of error messages if an invalid
frame where to be injected (or unlikely corruption were to occur).
Signed-off-by: Jouni Malinen <j@w1.fi>
This can be used to drop any pending ERP key from both the internal AP
authentication server and RADIUS server use of hostapd.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new hostapd.conf radio_measurements parameter can now be used to
configure a test build to advertise support for radio measurements with
neighbor report enabled. There is no real functionality that would
actually process the request, i.e., this only for the purpose of minimal
STA side testing for now.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, only WPA + WPA2 was covered. If FT is enabled in addition to
WPA, MDIE is included in the buffer between RSN and WPA elements. The
previous version ended up leaving only the MDIE after having skipped RSN
element. Fix this to skip MDIE as well to leave only WPA IE regardless
of whether FT is enabled in AP configuration.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This converts os_snprintf() result validation cases to use
os_snprintf_error() in cases where success condition was used to execute
a step. These changes were done automatically with spatch using the
following semantic patch:
@@
expression E1,E2,E3;
statement S1;
@@
E1 = os_snprintf(E2, E3, ...);
- if (\( E1 >= 0 \| E1 > 0 \) && \( (size_t) E1 < E3 \| E1 < (int) E3 \| E1 < E3 \))
+ if (!os_snprintf_error(E3, E1))
S1
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, the immediate EAPOL authenticator startup was scheduled
without having received EAPOL-Start only for the case where WPA/WPA2 was
enabled. This can be extended to speed up non-WPA/WPA2 cases as well if
the STA includes WPS IE in Association Request frame.
Signed-off-by: Jouni Malinen <j@w1.fi>
If "ADD bss_config=" command failed in driver_init() or
hostapd_setup_interface(), some of the allocated resources were not
freed properly.
Signed-off-by: Jouni Malinen <j@w1.fi>
Using aes_wrap() to initialize a data structure seemed to be too much
for some static analyzers to understand. Make it obvious that the target
is not just the single struct member. (CID 68111)
Signed-off-by: Jouni Malinen <j@w1.fi>
