This function cannot return negative value, so no need to check for
that. If there is not enough room in the buffer or if something
unexpected happens, 0 is returned.
Signed-off-by: Jouni Malinen <j@w1.fi>
Update the scan parameters in wpa_s only in case the scan command is
going to be executed. In other words, do not change the parameters for
an ongoing scan (the SCAN command is rejected with FAIL-BUSY) or if any
of the parameters is invalid.
Signed-off-by: Jouni Malinen <j@w1.fi>
The send_eapol() callback was used by driver_test.c, but with that
removed, there is no remaining users of the alternative EAPOL frame
transmitting mechanism in wpa_supplicant, i.e., all remaining driver
interfaces use l2_packet instead. Remove the send_eapol() to get rid of
unused code.
Signed-off-by: Jouni Malinen <j@w1.fi>
The space following the BSSID was not skipped properly if the following
parameter started with the "hs20:" prefix. For other cases, atoi() ended
up ignoring the space, but it is cleaner to skip it anyway for all
cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, any P2P capable interface was skipped in cross connection
uplink consideration. However, this ends up skipping more or less all
nl80211-based driver cases now since they mark the main interface P2P
capable. Relax this rule to allow the parent interface to be used as the
non-P2P station interface for cross connection purposes.
Signed-off-by: Jouni Malinen <j@w1.fi>
This is needed to get into more consistent state after the FLUSH
command. DISCONNECT followed by FLUSH could result in
wpa_s->disconnected being left to 1 and this resulted in a test failure,
e.g., when running wpas_ctrl_dup_network followed by
wpas_ctrl_enable_disable_network where the latter was expecting
ENABLE_NETWORK on a disabled network to connect automatically and that
does not happen if wpa_s->disconnected == 1.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
While these are using practically large enoungh buffer sizes, it is
better to be more consistent with checking os_snprintf() return value.
Signed-off-by: Jouni Malinen <j@w1.fi>
This converts os_snprintf() result validation cases to use
os_snprintf_error() for cases that were note covered by spatch and
semantic patches.
Signed-off-by: Jouni Malinen <j@w1.fi>
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>
This adds verification of os_snprintf() result against the maximum
buffer length. These changes were done automatically with spatch
using the following semantic patch:
@@
expression E1,E2,E3;
statement S1;
@@
E1 = os_snprintf(E2, E3, ...);
- if (\( E1 < 0 \| E1 <= 0 \))
+ if (os_snprintf_error(E3, E1))
(
S1
|
{ ... }
)
Signed-off-by: Jouni Malinen <j@w1.fi>
This pointer cannot be NULL sicne it is called only from this file and
with a valid pointer to the received command.
Signed-off-by: Jouni Malinen <j@w1.fi>
'num * 5 > end - pos' handles bounds checking a bit more efficiently,
but apparently that is not clear enough for all static analyzers.
Replace with 'num > left / 5' to avoid false reports. (CID 68117)
Signed-off-by: Jouni Malinen <j@w1.fi>
This reduced number of unnecessarily duplicated driver interface
callback functions for sending Action frames by using the more generic
send_action() instead of FT specific send_ft_action().
Signed-off-by: Jouni Malinen <j@w1.fi>
This extends the previously used WFD_SUBELEM_SET/GET <subelem id> design
to allow special "all" value to be used as an id to indicate that all
WFD subelements are to be set/get. This uses similar interface as was
previously added over D-Bus.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
There is no point in flooding the log with WARNING or ERROR level
messages if WMM-AC related Action frames are ignored in cases where they
were not expected. In addition, WARNING/ERROR should not really be used
in cases an invalid frame is dropped especially if this is not related
to a security setup since external devices could otherwise generate log
entries.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The previous version was somewhat too complex for some static analyzers.
Use local variables for the extracted length fields and explicitly
compare these against the remaining buffer length. (CID 68121)
Signed-off-by: Jouni Malinen <j@w1.fi>
Derive rRK and rIK on EAP peer if ERP is enabled. The new wpa_supplicant
network configuration parameter erp=1 can now be used to configure the
EAP peer to derive EMSK, rRK, and rIK at the successful completion of an
EAP authentication method. This functionality is not included in the
default build and can be enabled with CONFIG_ERP=y.
If EAP authenticator indicates support for re-authentication protocol,
initiate this with EAP-Initiate/Re-auth and complete protocol when
receiving EAP-Finish/Re-auth.
Signed-off-by: Jouni Malinen <j@w1.fi>
This change creates 'LIST_NETWORK LAST_ID=x' form to allow
retrieval of all networks saved in the system. Without this form,
only first few (whatever fills in first 4096 bytes) can be
retrieved.
Signed-off-by: Vinit Deshpande <vinitd@google.com>
wpa_bss_in_use() used to determine that a BSS with BSSID of
00:00:00:00:00:00 is in use in almost every case since either
wpa_s->bssid or wpa_s->pending_bssid was likely to be cleared. This
could result in a corner case of a BSS entry remaining in the BSS table
indefinitely if one was added there with a (likely bogus) address of
00:00:00:00:00:00. Fix this by ignore wpa_s->bssid and
wpa_s->pending_bssid if the BSSID in the BSS table entry is
00:00:00:00:00:00.
In theory, that address is a valid BSSID, but it is unlikely to be used
in any production AP, so the potential expiration of a BSS entry with
that address during a connection attempt would not be a concern
(especially when a new scan would be enough to recover from that).
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Externally triggered scan could result in a new radio work item getting
started even when external radio work was in progress. Delay such start
until the external work is completed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It was possible for the current network profile to be deleted when
merging duplicated WPS credentials. However, this did not clear
wpa_s->current_ssid and it was possible for something else to end up
dereferencing that pointer to now freed memory. This could be hit, e.g.,
with ap_wps_mixed_cred. Fix this by clearing current_ssid also in this
code path similarly to other cases of network block getting removed.
Signed-off-by: Jouni Malinen <j@w1.fi>
The mesh group addition was designed to use wpa_s->connect_without_scan
to skip a scan. That path was skipped if wpa_supplicant_fast_associate()
allowed previous scan results to be used. This could result in undesired
double-initialization attempt for the mesh interface. Avoid this by not
using wpa_supplicant_fast_associate() when wpa_s->connect_without_scan
is set.
Signed-off-by: Jouni Malinen <j@w1.fi>
It is possible that these location ended up getting called before mesh
startup operations had been completed and that could result in
dereferencing NULL pointers. Address those error cases by verifying that
the needed parameters are available before using them.
Signed-off-by: Jouni Malinen <j@w1.fi>
It was possible for auth/assoc timeout/failure event from the driver to
result in unexpected processing during mesh group setup if that
operation was started before the previously started driver operation to
association/connect had completed. Since those events cannot happen in
mesh cases, ignore them to avoid issues due to this corner case.
For example, monitor_iface_unknown_sta followed by wpas_mesh_secure test
case resulted in failure without this change.
Signed-off-by: Jouni Malinen <j@w1.fi>
An earlier check of the action_field value above the switch statement
already took care of all other possible cases, but that was apparently
too difficult for the compiler to notice. Bring back the default case to
avoid incorrect warnings about the event variable being maybe
uninitialized.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new wpa_supplicant control interface command can be used in
automated testing to verify how AP processes Data frames with arbitrary
contents. This is enabled only in builds with CONFIG_TESTING_OPTIONS=y.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
There is no need for this state to maintained when the wpa_supplicant
FLUSH ctrl_iface command is used to request flushing of all state.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It was possible for wmm_ac_deinit() not getting called when an interface
was removed in a sequence where disassociation was not reported and
wmm_ac_notify_disassoc() did not get called. This resulted in leaking
whatever memory was allocated for WMM AC parameters. Fix that by calling
wmm_ac_notify_disassoc() from wpa_supplicant_cleanup().
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This is needed to fix some sequencies where a real scan in ap_scan=2
case would be issued even when the connection case would expect direct
connection without a scan.
This fixed an issue shown in hwsim test case autoscan_exponential
followed by ibss_open_fixed_bssid.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This is needed to allow proper Action frame transmission to work without
having to claim these to be offchannel operations.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
On Android, the control socket being used may be the socket that is
created when wpa_supplicant is started as a /init.*.rc service. Such a
socket is maintained as a key-value pair in Android's environment.
Closing this control socket would leave wpa_supplicant in a bad state.
When wpa_supplicant re-opens the ctrl_iface socket, it will query the
Android's environment, and will be returned with the same socket
descriptor that has already been closed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit inserts Finite Cyclic Group to Anti-Clogging Token request
frame because IEEE Std 802.11-2012, Table 8-29 says "Finite Cyclic Group
is present if Status is zero or 76".
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
The country code from the current AP needs to be used in
ieee80211_chan_to_freq() to support cases where non-global operating
class table is used.
Signed-off-by: Jouni Malinen <j@w1.fi>
The previous version was valid, but apparently too complex for some
static analyzers. Use a local variable for uri_len and explicitly
compare it against the remaining buffer length. (CID 68121)
Signed-off-by: Jouni Malinen <j@w1.fi>
The previous version was fine, but too much for some static analyzers to
understand as proper bounds checking. (CID 68122)
Signed-off-by: Jouni Malinen <j@w1.fi>
The upper bound for the element length was already verified, but that
was not apparently noticed by a static analyzer (CID 68128).
Signed-off-by: Jouni Malinen <j@w1.fi>
