Commit graph

7728 commits

Author SHA1 Message Date
Ilan Peer
e3bd6e9dc0 P2P: Use another interface operating channel as listen channel
Performing a P2P Device flow such as p2p_listen or
p2p_find, can degrade the performance of an active interface
connection, if the listen frequency is different than the
frequency used by that interface.

To reduce the effect of P2P Device flows on other interfaces,
try changing the listen channel of the P2P Device to match the
operating channel of one of the other active interfaces. This change
will be possible only in case that the listen channel is not forced
externally, and will be delayed to a point where the P2P Device
state machine is idle.

The optimization can be configured in the configuration file and
is disabled by default.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2014-06-15 00:46:11 +03:00
Ilan Peer
28812a8983 P2P: Try using one of the social channels for GO
In case there is no preference for the GO operating channel,
try using one of 1, 6, 11 (randomly), and only if the random
selection is not suitable traverse all the channels 1..11.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2014-06-15 00:33:52 +03:00
Ilan Peer
751b00ba28 P2P: Modify p2p_get_pref_freq
In p2p_get_pref_freq, if the channels argument is NULL, select a
preferred channel that is also one of the P2P Device configured
channels.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2014-06-15 00:21:41 +03:00
Avraham Stern
0a816e8cbf P2P: Remove duplicated code from get_shared_radio_freqs_data()
Remove the seperation between getting the local interface frequency and
other interfaces frequencies since going over all the radio interfaces
includes the local interface.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-15 00:21:41 +03:00
Jouni Malinen
504df28a1d Remove unused dump_freq_array()
This function is not used anymore.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-15 00:21:41 +03:00
Ilan Peer
a0c90bb073 P2P: Collect and use extended data on used frequencies
When the number of frequencies supported by the kernel is bigger than
one, and there is a need to pick a frequency for a new flow such as P2P
GO Negotiation or P2P Invitation, the flow should be able to pick the
best frequency among all the frequencies currently used by the device.

In order to prioritize between the currently used frequencies, add
the ability to collect additional data about each used frequency
(if the frequency is used by a station interface or P2P Client)
and when needed select the best frequency, where:

1. Infrastructure interfaces have highest priority
2. P2P Client interfaces have higher priority over AP/GO
   interfaces.

The rational is that the frequency of an AP/GO can change while
that of a station interface cannot.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2014-06-15 00:21:40 +03:00
Avraham Stern
b278f323ed P2P: Remove unused code from get_shared_radio_freqs_data()
Remove the check for get_radio_name support from
get_shared_radio_freqs_data() since get_radio_name is no longer in use
in this function.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-15 00:21:40 +03:00
Avraham Stern
eb383fc48e tests: Autonomous GO random channel selection
Verify that a standalone GO selects a random channel from the social
channels in case no other preference is set.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-14 23:12:33 +03:00
Avraham Stern
8d74469e61 tests: P2P GO negotiation when two peers force different freq
Verify that when trying to form a P2P group but each peer forces a
different frequency, the group formation fails.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-14 23:12:33 +03:00
Avraham Stern
744a214bdb tests: Frequency set as no GO
Verify that when setting frequency as no_go_freq and setting up
autonomous GO, the GO is instantiated on a different frequency, but
when forming a P2P group and becoming a client this frequency can be
used.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-14 23:12:33 +03:00
Avraham Stern
87e5dd0af1 tests: GO with preferred channel and station on a disallowed channel
Verify that when setting up autonomous GO with configured preferred
channel and a station interface is connected on a channel that is
disallowed for P2P, the GO is instantiated on the preferred channel.

Requires MCC.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-14 23:12:33 +03:00
Avraham Stern
b1f0cd8b4c tests: Autonomous GO with preferred channel and station on another channel
Verify that when setting up an autonomous GO with configured preferred
channel and a station interface is on another channel, the GO is
instantiated on the same channel as the station interface and not on the
configured preferred channel.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-14 23:12:32 +03:00
Avraham Stern
72f659238c tests: GO negotiation with forced freq different than station interface
Verify that when a station interface is on one frequency, and GO
negotiation is started in which both sides force a different frequency,
the P2P group is formed on the forced frequency (both as GO and client).

Requires MCC.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-14 23:12:09 +03:00
Haim Dreyfuss
031220832b tests: Autonomous GO force different channel than station interface
After station interface is connected on a specific channel, create
autonomous GO with forced different channel.

Requires MCC.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
2014-06-14 23:08:54 +03:00
Avraham Stern
23aec8ffd6 tests: GO negotiation with station interface on a P2P-disallowed channel
Verify that when P2P group is formed and a station interface is
connected on a channel that is disallowed for P2P, the group is formed
on a different channel than the BSS (both as GO and client).

Requires MCC.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-14 23:08:53 +03:00
Avraham Stern
4b47d977c5 tests: GO with station interface on a P2P-disallowed channel
Verify that when setting up an autonomous GO and station interface is
connected on a channel that is disallowed for P2P uses, the GO is
instantiated on a different channel than the station mode connection.

Requires MCC.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-14 23:05:17 +03:00
Avraham Stern
9c69efc144 tests: GO negotiation with station interface is connected
Verify that when station interface is connected and GO negotiation is
initiated, the P2P group is formed on the same channel as the station
connection.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
2014-06-14 23:04:41 +03:00
Haim Dreyfuss
ef59926999 tests: Autonomous GO channel selection following BSS
This test verifies that if a GO is instantiated after a connection of a
station interface, the chosen operating channel is that of the station
interface.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
2014-06-14 23:04:08 +03:00
Haim Dreyfuss
5fe7a42601 tests: Add wpasupplicant get_mcc helper function
The function returns the number of concurrent channels supported by the
driver.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
2014-06-14 19:49:17 +03:00
Haim Dreyfuss
57d909eeff tests: Add channels argument to run-all.sh and start.sh
Add an option to run-all.sh and start.sh to get as an argument the
number of concurrent channels that mac80211_hwsim will be loaded with.
To start mac80211_hwsim with more than one channel, the following
parameter should be added to command line: channels=<num_channels>
The default is one channel (no concurrent channels).
The driver should be loaded with multi channel support in order to run
some tests.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
2014-06-14 19:47:51 +03:00
Jouni Malinen
e6270129f6 Clean up EAPOL-Key Key Data processing
Use a single location in wpa_sm_rx_eapol() for preparing the pointer to
the Key Data field and to its validated length instead of fetching that
information in number of processing functions separately.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 19:02:46 +03:00
Jouni Malinen
d56d7e56e3 Clean up EAPOL-Key processing
Re-order wpa_sm_rx_eapol() to first go through all EAPOL (802.1X) header
validation steps using the original message buffer and re-allocate and
copy the frame only if this is a valid EAPOL frame that contains an
EAPOL-Key. This makes the implementation easier to understand and saves
unnecessary memory allocations and copying should other types of EAPOL
frames get here.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 18:31:14 +03:00
Jouni Malinen
30d62b7a88 tests: EAP-EKE protocol test cases
Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 17:27:12 +03:00
Jouni Malinen
8605eabd54 EAP-EKE: Fix typos in debug message
These error messages had an incorrect frame name (likely copy-pasted
from the commit message handler) and couple of typos.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 17:26:52 +03:00
Jouni Malinen
25be28a375 dbus: Check return value more consistently (CID 62841)
Most of these calls are checked to return success and there is no reason
why these wouldn't, so be more consistent. This addresses CID 62841,
CID 62840, CID 62839, CID 62838, CID 62837, CID 62836.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 12:32:53 +03:00
Jouni Malinen
ac79fcfa76 wext: Verify set_ssid results consistently (CID 62842)
Note in debug log if SSID clearing to stop pending cfg80211 association
attempts fail.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 12:32:53 +03:00
Jouni Malinen
f62415df8a Note chmod() failure in debug log even in ignore case (CID 62843)
If this chmod() call fails, the global control interface is allowed to
be used since there was no change to its group. Anyway, it can be
helpful to note the error case in debug log instead of silently ignoring
it.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 12:32:52 +03:00
Jouni Malinen
305000e160 WPS: Check wps_build_wfa_ext() return value consistently (CID 68104)
While this call cannot really fail, check the return value to be more
consistent with all the other wps_build_wfa_ext() calls.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 12:32:52 +03:00
Jouni Malinen
2485835ba3 EAP-MSCHAPv2: Check hash function results more consistently (CID 68105)
While the hash functions would be very unlikely to fail in practice,
they do have option of returning an error. Check that return value more
consistently.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 12:32:45 +03:00
Jouni Malinen
b7c61c9d4e Fix validation of EAPOL-Key length with AES key wrap (CID 62859)
The additional eight octet field was removed from keydatalen without
proper validation of the Key Data Length field. It would have been
possible for an invalid EAPOL-Key frame to be processed in a way that
ends up reading beyond the buffer. In theory, this could have also
resulted in writing beyond the EAPOL-Key frame buffer, but that is
unlikely to be feasible due to the AES key wrap validation step on
arbitrary memory contents.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-14 00:20:04 +03:00
Jouni Malinen
6590b6400f EAP-TNC: Limit maximum message buffer to 75000 bytes (CID 62873)
Since there is a limit on the EAP exchange due to maximum number of
roundtrips, there is no point in allowing excessively large buffers to
be allocated based on what the peer device claims the total message to
be. Instead, reject the message if it would not be possible to receive
it in full anyway.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 16:03:45 +03:00
Jouni Malinen
e862968d18 tests: Validate parsing and rejection of invalid WFD subelement
This is a regression test for wifi_display_subelem_hex() bounds checking
issue.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 15:29:48 +03:00
Jouni Malinen
49d13df63c P2P: Fix wfd_dev_info parsing for P2P-DEVICE-FOUND (CID 68127)
Commit b125c48fce ('P2P: Add wfd_dev_info=
field for device found event') added Wi-Fi Display device info to the
P2P-DEVICE-FOUND events. However, it did not include proper bounds
checking in wifi_display_subelem_hex() and could accept subelements with
invalid length field values. This could result in buffer read overflow
of up to 64 kB and inclusion of heap memory in the local control
interface event and/or process crash due to invalid memory access. Fix
this by checking the validity of the length field before writing a
hexdump of the data.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 15:25:39 +03:00
Jouni Malinen
1851e17a64 dbus: Clean up P2P group vendor ext getter
The vendor_ext[i] = NULL setting did not make any sense since
num_vendor_ext should have been used to index the vendor_ext array. The
old code did not do any harm since i >= num_vendor_ext and none of the
already set entries could have been cleared. Anyway, better clean this
by making it skip the setting to NULL similarly to what was already done
in the P2P peer vendor ext getter.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:48:21 +03:00
Jouni Malinen
137ff332fd HS 2.0R2: Fix OSEN IE parsing for in cipher setup (CID 68132)
The OSEN code path hardcodes number of struct wpa_ie_data items.
However, it did not clear the full structure and some uninitialized
fields could have been used (e.g., ie.mgmt_group_cipher for a debug
print and ie.capabilities for checking MFPC). Fix this by clearing the
ie data before filling in the hardcoded OSEN values.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:36:42 +03:00
Jouni Malinen
2703fb4ad9 WNM: Use cleaner way of generating pointer to a field (CID 68100)
The Action code field is in a fixed location, so the IEEE80211_HDRLEN
can be used here to clean up bounds checking to avoid false reports from
static analyzer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:15 +03:00
Jouni Malinen
da995b2e11 WNM: Use cleaner way of generating pointer to a field (CID 68099)
The Action code field is in a fixed location, so the IEEE80211_HDRLEN
can be used here to clean up bounds checking to avoid false reports from
static analyzer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:15 +03:00
Jouni Malinen
062833c67c GAS server: Fix request frame length validation (CID 68098)
There seemed to be an off-by-one error in the validation of GAS request
frames. If a Public Action frame without the Action code field would
have reached this function, the length could have been passed as
(size_t) -1 which would likely have resulted in a crash due to reading
beyond the buffer. However, it looks like such frame would not be
delivered to hostapd at least with mac80211-based drivers. Anyway, this
function better be more careful with length validation should some other
driver end up reporting invalid Action frames.

In addition, the Action code field is in a fixed location, so the
IEEE80211_HDRLEN can be used here to clean up bounds checking to avoid
false reports from static analyzer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:15 +03:00
Jouni Malinen
6ec64f3ec8 tests: Truncated GAS query request
Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:15 +03:00
Jouni Malinen
5ce3ae4c8f HT: Use cleaner way of generating pointer to a field (CID 68097)
The Action code field is in a fixed location, so the IEEE80211_HDRLEN
can be used here to clean up bounds checking to avoid false reports from
static analyzer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:15 +03:00
Jouni Malinen
fb5d417178 P2P: Use cleaner way of generating pointer to a field (CID 68096)
The Action code field is in a fixed location, so the IEEE80211_HDRLEN
can be used here to clean up bounds checking to avoid false reports from
static analyzer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:15 +03:00
Jouni Malinen
35c03184df P2P: Use cleaner way of generating pointer to a field (CID 68095)
The Action code field is in a fixed location, so the IEEE80211_HDRLEN
can be used here to clean up bounds checking to avoid false reports from
static analyzer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:15 +03:00
Jouni Malinen
e987c70c85 dbus: Add explicit break statements to switch-default
There were couple of missing breaks in switch-default (before/after).
While these did not have any noticeable issues due to falling over to
the next step that just exited from the switch statement, it is cleaner
and more robust to have each case use an explicit break.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:15 +03:00
Jouni Malinen
6446420b24 dbus: Initialize temporary entry properly (CID 62877)
The tmpentry variable was not initialized and
_wpa_dbus_dict_entry_get_byte_array() does not set tmpentry.type, so it
would have been possible for the error path to end up trying to free
unexpected type of an entry or not free the memory at all.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:15 +03:00
Jouni Malinen
70d9537361 Use clearer way of getting pointer to a frame (CID 62835)
This avoids an incorrect ARRAY_VS_SINGLETON report for a case where a
pointer is taken to the specified field in a frame and not to a single
octet. Bounds checking was already handled separately.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-13 00:27:11 +03:00
Jouni Malinen
c02f35fb59 WPS: Clean up indentation level (CID 68109)
The implementation here was doing what it was supposed to, but the code
was indented in a way that made it quite confusing in the context of a
single line if statement body.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-12 19:45:31 +03:00
Jouni Malinen
0e87e798b5 Fix HS20_GET_NAI_HOME_REALM_LIST hex length check (CID 68108)
Due to an incorrect operation (MOD vs. AND), the code that was supposed
to return an error if the hex string has odd length was not really
reporting any failures. Instead of reporting an error, the invalid
control interface command would have been truncated. This is not an
issue in practice, but better fix the implementation anyway.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-12 19:45:27 +03:00
Jouni Malinen
beb9e1171e dbus: Avoid theoretical memory leaks with duplicated dict entries
If a dict would include duplicated items, the parsing code here would
have leaked memory by overwriting old os_strdup() result with the new
one. Fix this by explicitly freeing the previous entry. This addresses
CID 62852, CID 62851, CID 62850, CID 62849, CID 62847, CID 62846.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-12 19:45:06 +03:00
Jouni Malinen
ceb4cd89c9 dbus: Fix a potential double-free in on error path (CID 62880)
It would have been at least theoretically possible to hit the first
error in the loop and end up jumping to error handling which would call
os_free(value) without the value having been cleared after the os_free()
call at the end of the previous loop iteration.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-12 19:45:02 +03:00
Philippe De Swert
68e2b8882a TNC: Fix minor memory leak (CID 62848)
In tncc_read_config(), the memory allocted for the config
did not get freed if an error occured.

Signed-off-by: Philippe De Swert <philippe.deswert@jollamobile.com>
2014-06-12 19:44:58 +03:00