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9631 commits

Author SHA1 Message Date
Anton Nayshtut
104bef453b FST: hostapd configuration parameters
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-07-16 18:26:15 +03:00
Anton Nayshtut
659a1605d8 Parsing of multi band element
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-07-16 18:26:15 +03:00
Anton Nayshtut
717333f4e4 FST: Add the Fast Session Transfer (FST) module
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>
2015-07-16 18:26:15 +03:00
Anton Nayshtut
290078a734 Add IEEE 802.11ad element descriptions
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-07-16 12:33:29 +03:00
Anton Nayshtut
36209df93a Add is_multicast_ether_addr()
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>
2015-07-16 12:33:29 +03:00
Anton Nayshtut
ee1e3f57b5 hostapd: Global control interface notifications
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>
2015-07-16 12:33:29 +03:00
Anton Nayshtut
cb05808c46 nl80211: Generic Linux master interface support for hostapd
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>
2015-07-16 12:33:29 +03:00
Jouni Malinen
dca95e6924 tests: Invalid P2PS attribute parsing
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-13 00:51:15 +03:00
Jouni Malinen
2496adf046 tests: IEEE 802.1X and EAPOL Authenticator aWhile handling
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-12 11:45:16 +03:00
Jouni Malinen
b7bdfb68f2 tests: IEEE 802.1X and EAPOL_SET command
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-12 11:34:18 +03:00
Jouni Malinen
3722c0f4aa Add EAPOL_SET hostapd command to configure EAPOL parameters
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>
2015-07-12 11:34:18 +03:00
Jouni Malinen
a32a6d2ca2 tests: IEEE 802.1X and EAPOL_REAUTH request
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-12 11:34:16 +03:00
Jouni Malinen
cfb5c08f21 Add EAPOL_REAUTH hostapd command to trigger EAPOL reauthentication
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>
2015-07-12 11:33:33 +03:00
Jouni Malinen
778325501b tests: More coverage for EAPOL Authenticator state dump
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-12 00:20:44 +03:00
Nishant Chaprana
bcc332e760 tests: Fix resource leak in test-rsa-sig-ver on error paths
The opened FILE pointer needs to be closed on error paths.

Signed-off-by: Nishant Chaprana <n.chaprana@samsung.com>
2015-07-10 21:10:24 +03:00
Jouni Malinen
bddc51e8e4 RSN: Stop connection attempt on apparent PMK mismatch
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>
2015-07-08 20:55:17 +03:00
Jouni Malinen
6c4b5da46d tests: EAP-TLS and TLS version configuration
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-08 19:52:14 +03:00
Jouni Malinen
fe1bf32974 Make TLS version number available in STATUS command
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>
2015-07-08 19:51:03 +03:00
Jouni Malinen
5650d379a3 OpenSSL: Add option to disable use of TLSv1.0
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>
2015-07-08 19:27:57 +03:00
Jouni Malinen
2456264fad NFC: Add a hardcoded limit on maximum NDEF payload length
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>
2015-07-08 17:03:34 +03:00
Hahn, Maital
aa517ae227 wpa_supplicant: Fix a typo in wpa_scan_result_compar()
A typo in wpa_scan_result_compar() caused wrong scan results sorting
(and wrong roaming decision). This fixes a copy-paste regression
introduced by commit a1b790eb9d ('Select
AP based on estimated maximum throughput').

Signed-off-by: Maital Hahn <maitalm@ti.com>
2015-07-08 16:52:42 +03:00
Andrei Otcheretianski
1ee6dd2671 tests: Few trivial cleanups to P2PS tests
Remove unused variables and replace split(" ") with just split().

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
2015-07-08 16:52:42 +03:00
Andrei Otcheretianski
53606b105c tests: Wait for scan to complete on all interfaces in reset()
When WpaSupplicant executes reset() it waits until all the ongoing scans
are completed. However, it checks the status of the wlanX interface
only. If a dedicated P2P device interface is used, scan may be still
running on the P2P Device interface, e.g., due to P2P_FIND. This might
affect subsequent tests.

Fix this by waiting until the scan is done both on wlanX and P2P
Device interfaces.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
2015-07-08 16:52:42 +03:00
Jouni Malinen
ba53a8a009 tests: Additional invalid NDEF records
These are regression tests for NDEF message parsing issues with payload
length validation.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-08 16:52:42 +03:00
Jouni Malinen
df9079e727 NFC: Fix payload length validation in NDEF record parser
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>
2015-07-08 16:52:25 +03:00
Andrei Otcheretianski
b843a8b8a6 P2PS: Save intended interface address after P2PS PD
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>
2015-07-07 20:59:44 +03:00
Andrei Otcheretianski
5cc6ec0f68 P2PS: Set intended interface address correctly for new group
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>
2015-07-07 20:57:07 +03:00
Andrei Otcheretianski
1f14e2bf92 P2PS: Add PD Response validation
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>
2015-07-07 20:52:38 +03:00
Andrei Otcheretianski
1f1a08b4cc P2PS: Add intended iface address during PD for persistent group
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>
2015-07-07 20:41:19 +03:00
Andrei Otcheretianski
23bb9828a3 P2PS: Fix P2PS-PROV-DONE event on GO
If after P2PS PD the device should become a GO it sends P2PS-PROV-DONE
event which contains the GO interface name. If the GO isn't running yet
the device may use pending interface name. However, when the GO is
started, pending interface name will be removed.

Fix the GO interface name in P2PS-PROV-DONE event by copying the
interface name instead of saving the pointer.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
2015-07-07 20:34:14 +03:00
Andrei Otcheretianski
a698d6c85f P2PS: Use wpas_p2p_create_iface() to check if dedicated iface is needed
Call wpas_p2p_create_iface() instead of just checking p2p_no_group_iface
config value. Not doing so, resulted in an incorrect behavior when the
driver sets WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE flag.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
2015-07-07 20:30:12 +03:00
Andrei Otcheretianski
223ccebfa3 P2PS: Save wps_prov_info on the responder side
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>
2015-07-07 20:26:07 +03:00
Andrei Otcheretianski
2fc866d1bc P2PS: Validate WPS config methods more accurately in PD Request
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>
2015-07-07 20:24:01 +03:00
Max Stepanov
ea210b9f8a P2P: Refactor p2p_process_prov_disc_resp() function
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>
2015-07-07 20:21:44 +03:00
Max Stepanov
20f4c3d76b P2P: Delete redundant comparison in p2p_process_prov_disc_resp()
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>
2015-07-07 20:20:43 +03:00
Max Stepanov
82d6113502 P2PS: Fix adv_id and adv_mac params of P2P-PROV-DISC-FAILURE
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>
2015-07-07 19:40:49 +03:00
Dan Williams
e8492c8145 hostap: Fix send_mlme() after 'freq' parameter addition
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>
2015-07-07 19:40:49 +03:00
Jouni Malinen
e0236b152c tests: IEEE 802.1X and HELD state
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-07 19:25:31 +03:00
Jouni Malinen
c8a15753eb Send EAPOL-Start on HELD->CONNECTING transition
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>
2015-07-07 19:25:31 +03:00
Mike Gerow
471c810bc1 pkcs11: Don't ask for a new PIN on TLS handshake failure
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>
2015-07-07 19:25:31 +03:00
Jouni Malinen
1f560ff08f tests: Add Undefined Behavior Sanitizer (ubsan) configuration
This allows hostapd and wpa_supplicant to be built for hwsim test cases
with ubsan functinality from the recent gcc/clang compiler versions.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-07 18:23:04 +03:00
Jouni Malinen
66f1e078e7 DATA_TEST_TX: Avoid ubsan warning on 0x80<<24 not fitting in int
Use unsigned constant instead of signed to avoid warning with the LSB
being set in an int.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-07 16:25:06 +03:00
Jouni Malinen
75352270fa Avoid misaligned IPv4 header accesses in DATA_TEST_* commands
The IPv4 header after the Ethernet header is not 32-bit aligned and the
previous version ended up accessing 32-bit members at misaligned
addresses.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-07 16:25:06 +03:00
Jouni Malinen
476a634d60 Avoid ubsan warning on 0x80<<24 not fitting in int in WPA_GET_BE32/LE32
Use a typecast to make this shift unsigned so that the MSB fits within
the range of allowed values.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-07 16:25:06 +03:00
Jouni Malinen
cf6fd19b34 ndisc_snoop: Avoid misaligned read of IPv6 address
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>
2015-07-07 16:25:06 +03:00
Jouni Malinen
e9ed7d9898 EAP-TTLS: Avoid ubsan warning on 0x80<<24 not fitting in int
Use a typecast to make this unsigned so that the MSB fits within the
range of allowed values.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-07 16:25:06 +03:00
Jouni Malinen
0f5fb8a467 radiotap: Avoid ubsan warning on 1<<31
Use the BIT() macro and unsigned int to avoid ubsan warning on 1<<31 not
fitting in an int.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-07 16:25:06 +03:00
Jouni Malinen
fc880b11ed NFC: Avoid misaligned read of an NDEF field
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>
2015-07-07 16:25:06 +03:00
Jouni Malinen
e01281fccc trace: Use explicit alignment requirements to avoid misalignment
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>
2015-07-07 16:25:06 +03:00
Jouni Malinen
f97e3ce473 drivers: Use unsigned arguments for sta_set_flags()
Since BIT() is now returning unsigned int, these functions need to match
that to avoid compiler warnings.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-07 16:25:06 +03:00