Commit 21efc940f6 ('wpa_supplicant: Do not
register a P2P management interface on DBus') hides the special P2P
management interface from D-Bus. However, it did not take into account
the possibility of wpa_s->dbus_path and wpa_s->dbus_new_path being NULL
in such cases on number of code paths within the D-Bus handlers. This
could result in invalid arguments (NULL path) being provided to D-Bus
functions (mainly, dbus_message_iter_append_basic) and NULL pointer
dereference when iterating over all interfaces. Either of these could
make wpa_supplicant process terminate.
Fix this by explicitly checking that the interface-specific D-Bus path
has been registered before using it anywhere with D-Bus handlers. In
addition, find the correct wpa_s instance to fix P2P operations through
D-Bus when the P2P Device interface is used.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This makes source code more consistent. The use within Android driver
interface is left as-is to avoid changes in the old PNO interface
definition.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The dbus interface documentation says the following about the
WPS property of the fi.w1.wpa_supplicant1.BSS interface:
==
WPS information of the BSS. Empty dictionary indicates no WPS support.
Dictionary entries are:
Type s "pbc", "pin", ""
==
However the implementation returns "type" => "" for BSSes
that do not support WPS.
Fix the implementation to match the documentation.
Return empty dictionary if there is no WPS support.
And "type" => "" if WPS is supported, but is not in progress
right now.
Signed-off-by: Floris Bos <bos@je-eigen-domein.nl>
wpa_supplicant_deinit_iface() ends up removing all P2P groups if the
removed interface is the parent interface. This is correct behavior in
general, but this resulted in issues in the new group interface
initialization error path since wpa_s->parent was not assigned before
hitting this check. Fix this by assigning wpa_s->parent as part of
wpa_supplicant_add_iface().
Signed-off-by: Jouni Malinen <j@w1.fi>
The optional freq=<MHz> can now be used with the P2P_FIND command to
specify a single channel to scan during the first round of P2P search.
For example, this can be used to replace the full initial scan with a
single channel scan of a known operation channel.
Signed-off-by: Daichi Ueura <daichi.ueura@sonymobile.com>
This extends wpas_p2p_prov_disc() implementation to accept P2PS
parameters. None of the callers are yet using this functionality; the
following commit introduces a user.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
P2PS seek strings can now be specified in the P2P_FIND control interface
command with one or more optional "seek=<str>" parameters.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
A new "CTRL-EVENT-EAP-PEER-ALT depth=<i> <alt name>" event is now used
to provide information about server certificate chain alternative
subject names for upper layers, e.g., to make it easier to configure
constraints on the server certificate. For example:
CTRL-EVENT-EAP-PEER-ALT depth=0 DNS:server.example.com
Currently, this includes DNS, EMAIL, and URI components from the
certificates. Similar information is priovided to D-Bus Certification
signal in the new altsubject argument which is a string array of these
items.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes D-Bus network profile Set(Properties) clear cached EAP data
similarly to how SET_NETWORK does for control interface.
Signed-off-by: Jouni Malinen <j@w1.fi>
Try to be a bit more consistent by using NoMemory instead of InvalidArgs
if os_strdup() fails in the CreateInterface handler.
Signed-off-by: Jouni Malinen <j@w1.fi>
It is possible for this function to get called even if D-Bus
registration had failed, so the path can be NULL here.
Signed-off-by: Jouni Malinen <j@w1.fi>
It is possible for this function to be called even if D-Bus interface
registration has failed. Avoid a D-Bus assert in such a case.
Signed-off-by: Jouni Malinen <j@w1.fi>
entry->strarray_value was left to point to freed memory in case
os_realloc_array() failed. This resulted in the following
wpa_dbus_dict_entry_clear() trying to free an already freed memory area.
In addition, the separately allocated strings in the array would have
been leaked in such a case. Furthermore, wpa_dbus_dict_entry_clear() was
not prepared for the possibility of the initial os_calloc() call failing
and entry->strarray_value being NULL without array_len being cleared to
zero. That would have resulted in reading uninitialized memory and NULL
pointer dereference.
Signed-off-by: Jouni Malinen <j@w1.fi>
entry->bytearray_value was left to point to freed memory in case
os_realloc_array() failed. This resulted in the following
wpa_dbus_dict_entry_clear() trying to free an already freed memory area.
Signed-off-by: Jouni Malinen <j@w1.fi>
add_interface() did not check for os_strdup() return value and could end
up dereferencing a NULL pointer if memory allocation failed.
Signed-off-by: Jouni Malinen <j@w1.fi>
The error reply needs to be sent out as a response. The "out" label was
in incorrect place to allow that to happen; instead, it ended up leaking
memory for the generated reply message.
Signed-off-by: Jouni Malinen <j@w1.fi>
If setSmartcardModules() fails to allocate memory with os_strdup(), the
allocated items in the dict entry were not freed.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, role="enrollee" was required to be used to allow the AP mode
WPS operation to be started. This is incorrect since the AP/GO will
operate in Registrar role. Fix this by ignoring the role parameter when
AP (including P2P GO) mode is enabled.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to limit this property based on the role of the device
in the group, so return the passphrase if it is available. It will be
available in GO role and it may be available in P2P Client role based on
whether the peer GO provided it during the WPS provisioning step.
Signed-off-by: Jouni Malinen <j@w1.fi>
This was returning a byte array of the pointer to the PSK, not the
actual PSK, due to incorrect use of
wpas_dbus_simple_array_property_getter(). In addition, there is no need
to limit this property based on the role of the device in the group, so
return the PSK if it is available (which it will be for both GO and P2P
Client roles).
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to have separate wpa_printf() and different error
message strings for the unlikely out-of-error messages. Use a helper
function, wpas_dbus_error_no_memory(), to get consistent behavior with a
one-line call.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 6aeeb6fa21 ('dbus: clean up new
D-Bus interface getters and setters') redesigned the property
getter/setter calls in a way that made the
wpas_dbus_error_unknown_error() note about message being NULL in some
cases obsolete. All the remaining callers are from method handler
functions that must have a valid message. Remove the obsolete notes and
unnecessary messsage == NULL check.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to have multiple separate return statements for error
cases in a sequence of operations. In addition, there is not much point
in "converting" boolean return values with "if (!res) return FALSE;
return TRUE;" style constructions.
Signed-off-by: Jouni Malinen <j@w1.fi>
net_id_str can be NULL and that must be checked for to avoid NULL
pointer dereference if an invalid persistent_group_object path is used
with these methods.
Signed-off-by: Jouni Malinen <j@w1.fi>
None of the new D-Bus interface cases use the bssid_part in
decompose_object_path (while the old interface ones do). As such, this
is dead code and can be removed. In addition, the P2P addition here was
pretty ugly extension. Replace these with a cleaner way of passing the
separating string (e.g., "Networks") from the caller and returning the
requested item.
In addition, there is no need to allocate the returned item separately,
so use a single allocation and a pointer to that allocated memory. This
will make it easier for callers to have to free only a single
allocation. This is also fixing a memory leak in P2P invitation
persistent group case where the caller had missed the need to free the
returned values.
Signed-off-by: Jouni Malinen <j@w1.fi>
This helper function does not modify peer_path, so mark it const. In
addition, there is no point in callers to check separately whether
peer_path is NULL since that is taken care of by this helper function.
Signed-off-by: Jouni Malinen <j@w1.fi>
This cannot be NULL when an interface is in use. There is not much point
in couple of functions checking this while large number of other places
do not.
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds the message signature to the new D-Bus interface message
handler and similar prints to the old interface messages handlers.
Signed-off-by: Jouni Malinen <j@w1.fi>
eloop_is_timeout_registered() was called with incorrect context argument
which meant that the pending timeout would have never been found.
Signed-off-by: Jouni Malinen <j@w1.fi>
wpa_supplicant_deauthenticate() call needs to happen before
wpa_config_remove_network(). Freed memory could be dereferenced if
removeNetwork method was issued on the currently connected network.
Signed-off-by: Jouni Malinen <j@w1.fi>
It looks like both gcc and clang optimize the (entry.type != foo ||
entry.array_type != bar) in a way that ends up evaluating the second
condition even when the first one results in 0. While this is not really
what the C language requirements on short-circuit evaluation require,
the compiler likely assumes this can have no side effects and with both
type and array_type being comparable in a single 64-bit operation, this
can clearly be a bit more efficient. While the code behaves same in both
cases, valgrind does warn about use of uninitialized memory when the
second condition is evaluated (entry.array_type is not initialized if
entry.type != DBUS_TYPE_ARRAY).
To keep valgrind logs cleaner, initialize entry.array_type to
DBUS_TYPE_INVALID so that these compiler optimizations do not result in
reading uninitialized memory.
Signed-off-by: Jouni Malinen <j@w1.fi>
The logic in wpas_dbus_signal_p2p_provision_discovery() seemed to imply
that there could be a case where _signal would be used uninitized. While
that is not the case since either (request || !status) or (!request &&
status) would always be true, some compilers do not seem to be clever
enough to figure that out to avoid the warning. Make this easier for
such compilers by removing the (!request && status) condition since it
is identical to !(request || !status).
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 911e97e400 ('DBus: Refactor array
adding, add binary arrays') introduced WPAS_DBUS_TYPE_BINARRAY as an
internal fake type for array_type. However, it selected this value to be
(DBUS_NUMBER_OF_TYPES + 100) = 116 = 't'. This happens to conflict with
DBUS_TYPE_UINT64 ((int) 't'). While none of the existing array_type use
cases supported UINT64, it is much clearer if WPAS_DBUS_TYPE_BINARRAY
has a value that does not match any existing DBUS_TYPE_* value. Replace
this with '@' (64).
Signed-off-by: Jouni Malinen <j@w1.fi>
This is needed to allow Set(P2PDeviceConfig) to clear the
VendorExtension array (i.e., to remove all configured vendor
extensions). Previously, such an attempt was met with a D-Bus assert and
rejection of the operation.
Signed-off-by: Jouni Malinen <j@w1.fi>
The ServiceDiscoveryRequest signal uses int32 for encoding dialog_token
for some reason (even though this is a u8 field).
ServiceDiscoveryResponse is supposed to accept the values from the
signal as-is, so extend that to accept int32 in addition to the
previously used uint32.
Signed-off-by: Jouni Malinen <j@w1.fi>
The earlier implementation seemed to require a strange extra
encapsulation with a dictionary for setting the WPSVendorExtensions
property while this was defined to have aay signature and the get
operation did indeed return and array of array of bytes without that
dictionary. Fix this to accept aay format for the setter as well. Keep
support for the old dictionary encapsulation format for backwards
compatibility.
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>
