5754 Commits

Author SHA1 Message Date
Jouni Malinen
84d6755108 vlan: Clean up netlink vs. ioctl API implementation
Move the ioctl-based VLAN implementation to a separate file to avoid
need for conditional blocks within vlan_ioctl.c. This removes the
internal CONFIG_VLAN_NETLINK define, i.e., this is now used only in
build configuration (.config) to select whether to include the
vlan_util.c (netlink) or vlan_ioctl.c (ioctl) implementation of the
functions.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-03-25 17:24:20 +02:00
Jörg Krause
cb38bc886e vlan: Fix musl build error
caddr_t is legacy BSD and should be avoided [1]. While glibc may still
use __caddr_t as the type, Linux kernel does not (it is "void __user *
ifru_data").

This fixes compile errors with the musl libc:

../src/ap/vlan_init.c: In function 'br_delif':
../src/ap/vlan_init.c:218:18: error: '__caddr_t' undeclared (first use in this function)
  ifr.ifr_data = (__caddr_t) args;

[1] http://stackoverflow.com/questions/6381526/what-is-the-significance-of-caddr-t-and-when-is-it-used

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
2016-03-25 16:57:05 +02:00
Jouni Malinen
1126c0787d nl80211: Ignore deauth/disassoc event during Connect reassociation
cfg80211 reports a deauth/disassoc event when internally clearing
connection with the previous BSS. Ignore that event to allow the new
connect command to complete.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-24 22:35:10 +02:00
Jouni Malinen
00c3c4ac9b nl80211: Add NL80211_ATTR_PREV_BSSID with Connect command
This makes it easier for drivers that use the Connect command instead of
separate Auth+Assoc commands to determine when to use reassociation
instead of association. Matching changes are still needed in cfg80211 to
allow this parameter to be used, but it is safe for wpa_supplicant to
start including this attribute now since it will be ignored by older
cfg80211 versions.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-24 22:35:10 +02:00
Jouni Malinen
8854f90bad mesh: Simplify wpa_auth_pmksa_set_to_sm()
pmksa->pmk or pmksa->pmkid cannot be NULL since they are arrays. Remove
the unnecessary NULL checks and use the provided pmksa pointer directly
to simplify the implementation. (CID 138519)

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-03-22 20:38:44 +02:00
Jouni Malinen
32d4fe9549 privsep: Fix a compiler warning on unsigned/signed comparison
Signed-off-by: Jouni Malinen <j@w1.fi>
2016-03-22 17:41:37 +02:00
Roy Marples
45e3fc72c6 Find correct driver for interface additions/removals
Interface additions/removals are not guaranteed to be for the driver
listening to the kernel events. As such, send the events to
wpa_supplicant_event_global() which can then pick the correct interface
registered with wpa_supplicant to send the event to.

Signed-off-by: Roy Marples <roy@marples.name>
2016-03-22 17:41:37 +02:00
Jouni Malinen
90377029c6 wpa_supplicant: Fix CONFIG_IBSS_RSN=y build without CONFIG_AP=y
Commit 1889af2e0f89f9a98171761683eb1c244584daf8 ('VLAN: Separate station
grouping and uplink configuration') added an ap_sta_set_vlan() function
that gets called from pmksa_cache_auth.c. This broke CONFIG_IBSS_RSN=y
build if src/ap/sta_info.c did not get included in the build, i.e., if
CONFIG_AP=y was not set.

Fix this by making the ap_sta_set_vlan() call conditional on
CONFIG_NO_VLAN being undefined and define this for CONFIG_IBSS_RSN=y
builds. This is fine for wpa_supplicant since CONFIG_AP=y case was
already defining this. For hostapd, this function call is not needed for
CONFIG_NO_VLAN case either.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-21 21:12:20 +02:00
Masashi Honma
9f2cf23e2e mesh: Add support for PMKSA caching
This patch add functionality of mesh SAE PMKSA caching. If the local STA
already has peer's PMKSA entry in the cache, skip SAE authentication and
start AMPE with the cached value.

If the peer does not support PMKSA caching or does not have the local
STA's PMKSA entry in the cache, AMPE will fail and the PMKSA cache entry
of the peer will be removed. Then STA retries with ordinary SAE
authentication.

If the peer does not support PMKSA caching and the local STA uses
no_auto_peer=1, the local STA can not retry SAE authentication because
NEW_PEER_CANDIDATE event cannot start SAE authentication when
no_auto_peer=1. So this patch extends MESH_PEER_ADD command to use
duration(sec). Throughout the duration, the local STA can start SAE
authentication triggered by NEW_PEER_CANDIDATE even though
no_auto_peer=1.

This commit requires commit 70c93963edefa37ef84b73efb9d04ea10268341c
('SAE: Fix PMKID calculation for PMKSA cache'). Without that commit,
chosen PMK comparison will fail.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2016-03-20 17:56:38 +02:00
Masashi Honma
4c522c7798 PMKSA: Flush AP/mesh PMKSA cache by PMKSA_FLUSH command
This extends the wpa_supplicant PMKSA_FLUSH control interface command to
allow the PMKSA list from the authenticator side to be flushed for AP
and mesh mode. In addition, this adds a hostapd PMKSA_FLUSH control
interface command to flush the PMKSA entries.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2016-03-20 17:37:53 +02:00
Masashi Honma
b8daac18a4 PMKSA: Show AP/mesh PMKSA list in PMKSA command
This extends the wpa_supplicant PMKSA control interface command to allow
the PMKSA list from the authenticator side to be listed for AP and mesh
mode. In addition, this adds a hostapd PMKSA control interface command
to show the same list for the AP case.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2016-03-20 17:37:53 +02:00
Jouni Malinen
f7648c8679 P2P: Advertise IP Address Allocation only if it is enabled on GO
This group capability bit was previously added unconditionally which
could result in the P2P Client assuming the functionality is available
even though the GO would always reject the request (not reply to it with
an assigned IP address) during the 4-way handshake.

Fix this by advertising the capability only if the GO configuration
allow IP address assignment to be completed.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-03-20 17:37:53 +02:00
Roy Marples
7f46ad9ee5 BSD: Only down the interface once we are sure we can work with it
Signed-off-by: Roy Marples <roy@marples.name>
2016-03-20 11:24:30 +02:00
Jouni Malinen
29eddc3d8c nl80211: Fix error path in if_indices_reason reallocation
Commit 732b1d20ec06ab92fd22dbdea4609a6528bcf50a ('nl80211: Clean up
ifidx properly if interface in a bridge is removed') added
drv->if_indices_reason array similarly to the previously used
drv->if_indices. However, it had a copy-paste error here on the error
path where a reallocation failure after at least one successful
reallocation would result in the drv->if_indices being overridden
instead of restoring drv->if_indices_reason to the old value. Fix this
by setting the correct variable on the error path. (CID 138514)

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-03-18 16:25:35 +02:00
Jouni Malinen
ee298f1b1f nl80211: Do not add NL80211_ATTR_SMPS_MODE attribute if HT is disabled
SMPS mode is applicable only for HT and including an attribute to
configure it when HT is disabled could result in the AP start operation
failing. Fix this by adding the attribute only in cases where HT is
enabled.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-18 16:16:40 +02:00
Sunil Dutt
4ca16b5fd7 Assign QCA vendor command and attribute for Tx/Rx aggregation
Assign nl80211 vendor command
QCA_NL80211_VENDOR_SUBCMD_SET_TXRX_AGGREGATION and corresponding
attributes.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-17 20:53:25 +02:00
Jouni Malinen
64ce5905f8 libxml2: Check for xmlDocDumpFormatMemory() error case
Since this function needs to allocate memory, it might fail. Check that
the returned memory pointer is not NULL before trying to parse the
output.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-16 21:49:28 +02:00
Jouni Malinen
8b827c342f BoringSSL: Keep static analyzers happier with X509_get0_pubkey_bitstr()
While this function could return NULL if the parameter issued to it were
NULL, that does not really happen here. Anyway, since this can result in
a warning from a static analyzer that does can see the return NULL
without fully understanding what it means here, check the return value
explicitly against NULL to avoid false warnings.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-16 21:34:01 +02:00
Dedy Lansky
f2d6c17aa0 nl80211: Support network hierarchy of a master interface under bridge
Since commit cb05808c46539922cf02e9e8527a062e90637ff9 ('nl80211: Generic
Linux master interface support for hostapd'), hostapd is listening for
EAPOL frames on any master which the interface is enslaved under.

This commit allows hostapd to support network hierarchy in which the
interface is enslaved under some master which in turn is enslaved under
a bridge.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
2016-03-09 21:03:41 +02:00
Jouni Malinen
f85399f396 Reserve QCA vendor specific nl80211 commands 116..118
These are reserved for QCA use.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-08 23:08:45 +02:00
Zefir Kurtisi
3bd58861ae hostapd: Handle running out of DFS channels
In scenarios where only DFS channels are available (e.g., outdoor,
special country codes), hostapd must be able to handle situations
where all are unavailable.

The two possibilities to get there are
1) while operating on the last available DFS channel a radar is
   detected
2) hostapd is started while all channels are unavailable

In both cases, hostapd instead of terminating should better
wait for the NOPs to pass and re-try operation after the CAC.

This patch provides that feature by using the condition
(iface->state == HAPD_IFACE_DFS && !iface->cac_started)
as NOP mode signature to retry operation from within
hostapd_dfs_nop_finished().

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
2016-03-08 12:16:37 +02:00
Dedy Lansky
cc1af6faed FST: Fix session setup failure with peer without MB IE
Upon receiving FST setup request on old band, the peer is searched on
new band. The assumption is that MB IE from this peer on new band
previously received either in assoc event or in FST setup request.

There are cases in which above assumption doesn't work, peer is not
found and session setup fails. For example:
- STA connects over 11ac. Due to driver limitation, MB IE is not included
in assoc event
- STA connects over 11ad. MB IE included in assoc event.
- FST session established on 11ac band, with AP as initiator. i.e. FST
setup request sent in AP=>STA direction. STA searches for peer's (AP)
MB IE on 11ad band which exists.
- FST switch occur
- FST session established on 11ad band, with STA as initiator. i.e. FST
setup request sent in STA=>AP direction. AP searches for peer's (STA)
MB IE on 11ac band which are absent.

For fixing the above, consider also peers without MB IE as candidates in
the search algorithm.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
2016-03-07 18:04:47 +02:00
Lior David
e4a1469cec P2P: Adjust service discovery maximum fragment size for 60 GHz
In the 60 GHz band, service discovery management frames are sent over
the control PHY and have a smaller maximum frame size (IEEE Std
802.11ad-2012, 21.4.3.2). Fix the code to use sufficiently small
fragment size when operating in the 60 GHz band.

The 60 GHz fragment size (928) is derived from the maximum frame size
for control PHY (1023) and subtracting 48 bytes of header size, and some
spare so we do not reach frames with the absolute maximum size.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
2016-03-07 13:47:01 +02:00
Eliad Peller
6448e06415 hostapd: Allow use of driver-generated interface addresses
Add a new 'use_driver_iface_addr' configuration parameter to allow use
of the default interface address generated by the driver on interface
creation. This can be useful when specific MAC addresses were allocated
to the device and we want to use them for multi-BSS operation.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2016-03-06 20:00:40 +02:00
Eliad Peller
f2accfe708 AP: Save EAPOL received before Association Response ACK
There is a race condition in which AP might receive the EAPOL-Start
frame (from the just-associated station) before the TX completion of the
Association Response frame. This in turn will cause the EAPOL-Start
frame to get dropped, and potentially failing the connection.

Solve this by saving EAPOL frames from authenticated-but-not-associated
stations, and handling them during the Association Response frame TX
completion processing.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2016-03-06 17:08:12 +02:00
Janusz Dziedzic
56885eecf4 hostapd: Add UDP support for ctrl_iface
Add UDP support for ctrl_iface:

New config option could be set:
CONFIG_CTRL_IFACE=udp
CONFIG_CTRL_IFACE=udp-remote
CONFIG_CTRL_IFACE=udp6
CONFIG_CTRL_IFACE=udp6-remote

And hostapd_cli usage:
hostapd_cli -i localhost:8877

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
2016-03-05 17:44:37 +02:00
Janusz Dziedzic
acf57fae76 ctrl_iface_common: Use sockaddr_storage instead of sockaddr_un
This is a step towards allowing UDP sockets to be used with the common
implementation.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
2016-03-05 17:15:05 +02:00
Janusz Dziedzic
89b781bc89 hostapd: Use common functions for ctrl_iface
Use the common functions, structures when UNIX socket ctrl_iface used.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
2016-03-05 17:15:05 +02:00
Janusz Dziedzic
ca974ae53f Add common ctrl_iface files
This is preparation for sharing a single implementation for ctrl_iface
functionality in wpa_supplicant and hostapd.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
2016-03-05 17:15:05 +02:00
Avichal Agarwal
35986959d9 P2P: Update peer WFD IE from PD Response and GO Negotiation Response
Update the peer WFD IE information based on WFD elements received in
Provision Discovery Response and GO Negotiation Response frames.

Signed-off-by: Avichal Agarwal <avichal.a@samsung.com>
Signed-off-by: Kyeong-Chae Lim <kcya.lim@samsung.com>
2016-03-05 10:02:59 +02:00
Ilan Peer
12c1fdf19a P2P: Update peer listen channel from Probe Request frames
In case a Probe Request frame is received from a known peer P2P Device,
update the listen channel based on the P2P attributes in the Probe
Request frame. This can be useful for cases where the peer P2P Device
changed its listen channel, and the local P2P device is about to start a
GO Negotiation or invitation signaling with the peer.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2016-03-03 17:10:26 +02:00
Ayala Beker
7441698fcf nl80211: Abort an ongoing scan upon scan timeout indication
Currently, when scan is stuck in the kernel/driver/fw,
the nl80211 driver tries to recover by faking a SCAN_RESULTS flow.
However, the scan is still stuck in the kernel/driver/fw.

To avoid that stuck request, abort it upon scan timeout.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
2016-03-03 17:10:26 +02:00
Ilan Peer
b8f02d8baf EAP-PWD peer: Fix possible memory leak on error path
Fix possible memory leak in eap_pwd_perform_commit_exchange().

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
2016-03-03 16:28:41 +02:00
Eliad Peller
4a6e9e5599 Fix CONFIG_WPA_TRACE=y compilation without CONFIG_WPA_TRACE_BFD=y
syms is defined only for WPA_TRACE_BFD:

../src/utils/trace.c: In function ‘wpa_trace_deinit’:
../src/utils/trace.c:372:7: error: ‘syms’ undeclared (first use in this function)
  free(syms);
       ^
../src/utils/trace.c:372:7: note: each undeclared identifier is reported only once for each function it appears in
make: *** [../src/utils/trace.o] Error 1
make: *** Waiting for unfinished jobs....

Add appropriate #ifdef.

Signed-off-by: Eliad Peller <eliad@wizery.com>
2016-03-03 16:23:23 +02:00
Lior David
c58eed6dc7 P2P: Add Dev Info attribute to Probe Request frames in 60 GHz
When building P2P IE for Probe Request frames in P2P scan, add the
device information attribute if the 60 GHz band is included in the scan,
since this is required by the P2P specification.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
2016-03-03 15:13:56 +02:00
Lior David
2b6e9f91df wpa_supplicant: Expose wpas_get_bands() and related API
Expose the functions wpas_get_bands() and wpas_freq_to_band() and the
enum wpa_radio_work_band, since they will be needed outside
wpa_supplicant.c.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
2016-03-03 15:10:50 +02:00
Dedy Lansky
0147afa9df FST: Enlarge State Transition Timeout (STT)
STT guards the exchange of FST Action frames with the peer station.
It was observed that sometimes Action frames sending is delayed at
driver/FW layers for few hundreds millisec.

Enlarge the STT to overcome such cases.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
2016-03-03 13:50:03 +02:00
Peng Xu
e1d00d47c7 Add error handling for offloaded ACS with vendor command failures
In case vendor ACS command returns invalid channel or hardware mode,
complete the interface setup with an error code instead of simply
return, so that hostapd can properly clean up the interface setup.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-03-03 12:19:43 +02:00
Jouni Malinen
b9ca12a911 nl80211: Add more address fields into RX frame debug message
This makes it easier to debug issues related to Public Action frame
addressing.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-02-29 21:18:27 +02:00
Jouni Malinen
debde14b5b RADIUS: Add Acct-Delay-Time into accounting messages
This tells to the server how long we have been trying to transmit the
message so that the actual time of the message generation can be
determined from receive time (ignoring network delays and only at
accuracy of one second).

For interim updates, only value 0 is used since there are no
retransmissions of the same message. For other accounting messages, the
initial attempt goes out with value 0 and the retransmissions, if
needed, show the number of seconds the message has been waiting in the
queue.

Update the Identifier and Authenticator in the messages whenever
updating the Acct-Delay-Time per RFC 2866, 4.1 requirements.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-02-29 17:43:13 +02:00
Jouni Malinen
669b5324e1 RADIUS: Update full message for interim accounting updates
Instead of using the RADIUS client retransmission design with the old
RADIUS message contents for each retry, trigger a completely new interim
accounting update instance more quickly (using the same schedule as
RADIUS message retransmissions) to improve accounting updates in cases
where RADIUS message delivery fails. This allows the server to get up to
date information from the time the "retry" message was sent instead of
the old information from the time the first failed attempt was sent.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-02-29 11:52:16 +02:00
Jouni Malinen
902c07a7af Replace hostapd_mac_comp_empty() with is_zero_ether_addr()
There is no need to maintain two implementations of the functionality.
is_zero_ether_addr() is easier to understand, so use it.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-02-28 20:11:58 +02:00
Michael Braun
5aef495fda VLAN: Avoid use of libnl cache
Using rtnl_link_alloc_cache() is expensive as it fills in all configured
links. Using rtnl_link_get_kernel() is much more lightweight.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-28 20:05:17 +02:00
Michael Braun
732b1d20ec nl80211: Clean up ifidx properly if interface in a bridge is removed
When an interface is removed while it was in a bridge, the bridge was
not removed from the local ifidx list.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-28 19:42:40 +02:00
Michael Braun
170c545ab4 FT: Check destination MAC address on RRB receive
As the Linux variant of l2_packet_init() does not use its own_addr
argument and l2_packet_receive() does not filter on destination MAC
address, this needs to be checked in the callback.

If there are multiple BSSes listening for FT RRB packets, all their
BSSIDs need to be local to the bridge interface. As l2_packet_init() is
going to receive all of them going for any local address, those RRB
messages started turning up on BSSes that were not destinated for and
cluttering logs.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-28 19:23:17 +02:00
Michael Braun
57b2c9140c RADIUS: Allow RADIUS server to provide PSK instead of passphrase
If the AP is slow, passphrase hashing takes too long to serve the client
before timeout. Extend the Tunnel-Password design to allow a 64
character value to be interpreted as a PSK and send SSID to RADIUS
server. This allows the RADIUS server to either take care of passphrase
hashing or to use raw PSK without such hashing.

This is especially important for FT-PSK with FT-over-air, where hashing
cannot be deferred.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-28 19:06:49 +02:00
Michael Braun
d8912fd80e Cache hashed passphrase in RADIUS-based PSK delivery
Instead of copying the full struct hostapd_sta_wpa_psk_short, share the
existing entry and use reference counting to check when it needs to be
freed. This allows caching of PSKs derived from passphrases to avoid
having to perform the heavy hashing operation multiple times.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-28 19:06:45 +02:00
Michael Braun
f8e09bc57e Defer passphrase-to-PSK hashing out of 802.11 authentication ACL check
Hashing takes quite some time (can be about one second on a low-power
CPU for each passphrase provided), so hostapd can easily hit the 900 ms
Wi-Fi client authentication deadline (mac80211 uses 3x 300 ms). This can
be fixed by storing the passphrase instead of PSK with the STA and defer
the hashing into the WPA/RSN 4-way handshake, when enumerating all PSKs.

This applies for the case where a RADIUS server is used to store the
per-STA passphrases and this passphrase is delivered as part of the MAC
ACL check during IEEE 802.11 Authentication frame processing.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-28 18:46:05 +02:00
Michael Braun
cc9c805a51 VLAN: Use stack instead of heap allocation for new interface name
The VLAN ifname is limited to the maximum length of IFNAMSIZ, so there
is no need to use heap allocation for it.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-28 18:29:58 +02:00
Michael Braun
d48d1b88d0 FT: Use BSSID as r1_key_holder if no value is configured
r1_key_holder is an identifier that was always set to zero if unless
configured before.

See 11.6.1.7.4 of IEEE Std 802.11-2012 which reads
 "R1KH-ID is a MAC address of the holder of the PMK-R1 in the
  Authenticator of the AP"
See 12.2.2 of IEEE Std 802.11-2012 which reads
 "Each R0KH-ID and R1KH-ID is assumed to be expressed as a unique
  identifier within the mobility domain."
 "The R1KH-ID shall be set to a MAC address of the physical entity
  that stores the PMK-R1 ..."

Defaulting this to BSSID is a more reasonable value since we have not
rejected the missing r1_key_holder as invalid configuration.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
2016-02-28 17:56:42 +02:00