IEEE Std 802.11r-2008, 11A.4.2 describes FT initial mobility domain
association in an RSN to include PMKR1Name in the PMKID-List field
in RSN IE in messages 2/4 and 3/4. This makes the RSN IE not be
bitwise identical with the values used in Beacon, Probe Response,
(Re)association Request frames.
The previous versions of wpa_supplicant and hostapd did not add the
PMKR1Name value in EAPOL-Key frame and did not accept it if added
(due to bitwise comparison of RSN IEs). This commit fixes the
implementation to be compliant with the standard by adding the
PMKR1Name value into EAPOL-Key messages during FT 4-Way Handshake and
by verifying that the received value matches with the value derived
locally.
This breaks interoperability with previous wpa_supplicant/hostapd
versions.
Running hostapd and wpa_supplicant on the same interface at the same
time is not expected to work, but it should not cause hostapd to crash.
Ignore station mode association events (no addr field) to avoid this.
IF WPA/RSN parameters were changed or WPA/RSN was disabled, the
WPA/RSN IE in Beacon/Probe Response frames was only update with
set_beacon(). We need to do this with set_generic_elem(), too, to
work with all driver wrappers.
Call ieee802_11_set_beacon() in addition to set_ap_wps_ie() when
processing WPS IE updates. This is needed with drivers that use
set_beacon() instead of set_ap_wps_ie() (i.e., nl80211).
Some ER implementation (e.g., some versions of Intel PROSet) seem to
use incorrect format for WLANEventMAC variable in PutWLANResponse.
Work around this by allowing various MAC address formats to be used
in this variable (debug message will be shown if the colon-deliminated
format specified in WFA WLANConfig 1.0 is not used).
This version of the MAC address parser allows number of different
string formats for the address (e.g., 00:11:22:33:44:55, 0011.2233.4455,
001122334455, 00-11-22-33-44-55). It returns the number of characters
used from the input string in case of success.
It turns out that this is needed for both FT-over-DS and FT-over-air
when using mac80211, so it looks easiest to just unconditionally
re-configure the keys after reassociation when FT is used.
This is needed to allow reassociation processing to skip 4-way handshake
when FT-over-DS is used with an AP that has a previous association state
with the STA.
This seems to be needed at least with mac80211 when a STA is using
FT-over-DS to reassociate back to the AP when the AP still has the
previous association state.
This makes the call simpler for driver wrappers since there is no need
to parse the IEs anymore before indicating association. In addition,
this allows association processing to be extended to use other IEs
in the future.
This avoids conflict with both Label and Display being included at
the same time (which would make it difficult to figure out which
PIN was actually used).
IGTK get_seqnum needs to be skipped in the same way as GTK one when
rekeying group keys. Previously, the old PN value (the one from the
previous key) was indicated and that resulted in MMIE replay detection
at the station.
This can be used to test 802.11w by sending a protected or unprotected
deauth/disassoc frame.
hostapd_cli deauth <dst addr> test=<0/1>
hostapd_cli disassoc <dst addr> test=<0/1>
test=0: unprotected
test=1: protected
Must update sm->pairwise when fetching PMK-R1 SA.
Add a workaround for drivers that cannot set keys before association
(e.g., cfg80211/mac80211): retry PTK configuration after association.
If the PTK configuration prior to association fails, allow reassociation
attempt to continue and configure PTK after association. This is a
workaround for drivers that do not allow PTK to be configured before
association (e.g., current cfg80211/mac80211).
This attribute is supposed to indicate which methods the AP supports as
an Enrollee for adding external Registrars. It was left to 0 when the
AP code did not yet support external Registrars and was forgotten when
the ER support was added.
On NetBSD 5.0.2, wpa_supplicant build results in messages below.
../src/drivers/driver_bsd.c: In function 'wpa_driver_bsd_get_ssid':
../src/drivers/driver_bsd.c:876: warning: passing argument 2 of 'bsd_get_ssid'
from incompatible pointer type
../src/drivers/driver_bsd.c:876: warning: passing argument 3 of 'bsd_get_ssid'
makes integer from pointer without a cast
../src/drivers/driver_bsd.c:876: error: too many arguments to function
'bsd_get_ssid'
../src/drivers/driver_bsd.c: In function 'wpa_driver_bsd_scan':
../src/drivers/driver_bsd.c:1125: warning: passing argument 2 of 'bsd_set_ssid'
from incompatible pointer type
../src/drivers/driver_bsd.c:1125: warning: passing argument 3 of 'bsd_set_ssid'
makes integer from pointer without a cast
../src/drivers/driver_bsd.c:1125: error: too many arguments to function
'bsd_set_ssid'
gmake: *** [../src/drivers/driver_bsd.o] Error 1
This patch solves this issue.
This is a step in adding FT support with nl80211-based drivers.
driver_nl80211.c is now registering to handle the FT Action frames
and is able to transmit FT Request frame. Received FT Action frames
are not yet indicated as driver events.
This is needed to fix PTK derivation to use correct length. Previously,
64-octet PTK may have been derived if the authenticator did not already
have a STA entry. Now, the correct pairwise cipher suite is learned when
then PMK-R1 SA is received.
This was not supposed to have duplicate value with WPA_AUTH_ALG_LEAP.
The previous version was unable to set FT as the authentication
algorithm with nl80211.
With this patch, a client gets kicked out of the last BSS it was
attached to, when it is associating to a different one.
While mac80211 does allow a station to be present on multiple bss
interfaces, this does seem to cause problems both for the stack
and for hostapd.
This patch allows the nl80211 driver to create its own per-bss context
and pass it to the drv_priv pointer of the hostapd bss state.
With this and the following patch, stations can associate to and switch
between multiple BSS interfaces of a single wiphy.
This obsoletes a few instances of passing ifname to a callback, those
can be removed in a separate patch.
It might also be useful to move more fields from the driver data to the
per-bss data structure in the future.
This patch allows wpa_supplicant to compile on Debian's kfreebsd
architectures.
Patch by Stefan Lippers-Hollmann based on work done by Petr Salinger
and Emmanuel Bouthenot for 0.6.X (http://bugs.debian.org/480572).
filter_ssids=1 global configuration parameter can now be used to
enable scan result filtering (with -Dnl80211 only for now) based on
the configured SSIDs. In other words, only the scan results that have
an SSID matching with one of the configured networks are included in the
BSS table. This can be used to reduce memory needs in environments that
have huge number of APs.
wpa_supplicant can now be notified of suspend/resume events, e.g.,
from pm-action scripts. This allows wpa_supplicant to clear information
that may become invalid during a suspend operation.
The kernel side support for this was just added into
wireless-testing.git. This commit adds the driver wrapper code needed
to allow wpa_supplicant to use the new functionality.
Some drivers may need to use a specific ifname for the virtual
interface, so allow them to do this with a new parameter passed
to the alloc_interface_addr() handler.
TNC IF-T is somewhat unclear on this are, but
draft-hanna-nea-pt-eap-00.txt, which is supposed to define the same
protocol, is clearer on the Flags field being included.
This change breaks interoperability with the old implementation if
EAP-TNC fragmentation is used. The old version would not accept
the acknowledgement message with the added Flags octet while the
new version accepts messagss with with both options.
If the last message from the EAP-TNC server was fragmented, the
fragment processing lost the DONE/FAIL state and did not know how
to handle the final ACK from the peer. Fix this by remembering the
earlier DONE/FAIL state when fragmenting a frame.
TNC IF-T specification is unclear on the exact contents of the fragment
acknowledgement frame. An interoperability issue with the tncs@fhh
implementation was reported by Arne Welzel
<arne.welzel@stud.fh-hannover.de> due to the different interpretations
of the specification. Relax EAP-TNC server/peer validation rules to
accept fragmentation acknowledgement frames to include the Flags field
to avoid this issue.
This patch aggregates ioctls.
First is SIOCS80211. The SIOCS80211's arguments has 3 couples.
1-1. i_len, i_data
1-2. i_val
1-3. i_len, i_data, i_val (currently only IEEE80211_IOC_APPIE)
There were 3 routines for each cases. This patch aggregates these to
one.
Second is SIOCG80211. The SIOCG80211 returns 2 type of value.
2-1. i_len
2-2. i_val
There were 2 routines for each cases. This patch aggregates these to
one.
I have tested on both FreeBSD 8.0 and NetBSD 5.0.1 with these cases.
[hostapd]
RSN-PSK(CCMP)/WPA-PSK(TKIP)
[wpa_supplicant(STA)]
RSN-PSK(CCMP)/WPA-PSK(TKIP)
[wpa_supplicant(AP)]
RSN-PSK(CCMP)/WPA-PSK(TKIP)
This patch enables FreeBSD channel control.
I have tested on FreeBSD 7.2 with these cases.
[hostapd]
RSN-PSK(CCMP)/WPA-PSK(TKIP)
[wpa_supplicant(STA)]
RSN-PSK(CCMP)/WPA-PSK(TKIP)
[wpa_supplicant(AP)]
RSN-PSK(CCMP)/WPA-PSK(TKIP)
The attached patch unifies hostapd wpa_driver_bsd_ops and
wpa_supplicant wpa_driver_bsd_ops.
I have tested on NetBSD 5.0.1 with these cases.
[hostapd]
RSN-PSK(CCMP)/WPA-PSK(TKIP)
[wpa_supplicant(STA)]
RSN-PSK(CCMP)/WPA-PSK(TKIP)
[wpa_supplicant(AP)]
RSN-PSK(CCMP)/WPA-PSK(TKIP)
This patch modifies field name of struct bsd_driver_data to use
same name of struct wpa_driver_bsd_data. This is a preparation of
unifying struct bsd_driver_data and struct wpa_driver_bsd_data.
This allows external programs (e.g., UI) to get more information
about server certificate chain used during TLS handshake. This can
be used both to automatically probe the authentication server to
figure out most likely network configuration and to get information
about reasons for failed authentications.
The follow new control interface events are used for this:
CTRL-EVENT-EAP-PEER-CERT
CTRL-EVENT-EAP-TLS-CERT-ERROR
In addition, there is now an option for matching the server certificate
instead of the full certificate chain for cases where a trusted CA is
not configured or even known. This can be used, e.g., by first probing
the network and learning the server certificate hash based on the new
events and then adding a network configuration with the server
certificate hash after user have accepted it. Future connections will
then be allowed as long as the same server certificate is used.
Authentication server probing can be done, e.g., with following
configuration options:
eap=TTLS PEAP TLS
identity=""
ca_cert="probe://"
Example set of control events for this:
CTRL-EVENT-EAP-STARTED EAP authentication started
CTRL-EVENT-EAP-PROPOSED-METHOD vendor=0 method=21
CTRL-EVENT-EAP-METHOD EAP vendor 0 method 21 (TTLS) selected
CTRL-EVENT-EAP-PEER-CERT depth=0 subject='/C=US/ST=California/L=San Francisco/CN=Server/emailAddress=server@kir.nu' hash=5a1bc1296205e6fdbe3979728efe3920798885c1c4590b5f90f43222d239ca6a
CTRL-EVENT-EAP-TLS-CERT-ERROR reason=8 depth=0 subject='/C=US/ST=California/L=San Francisco/CN=Server/emailAddress=server@kir.nu' err='Server certificate chain probe'
CTRL-EVENT-EAP-FAILURE EAP authentication failed
Server certificate matching is configured with ca_cert, e.g.:
ca_cert="hash://server/sha256/5a1bc1296205e6fdbe3979728efe3920798885c1c4590b5f90f43222d239ca6a"
This functionality is currently available only with OpenSSL. Other
TLS libraries (including internal implementation) may be added in
the future.
The previous version could end leaking memory since os_free() was used
instead of wpabuf_free(). In addition, this could potentially have
triggered a crash if the TLS context were being freed when pending
input data where still in the buffer (though, this may not be possible
to trigger in practice).
The bsd_send_eapol() adds Ethernet header by itself. This patch changes it
to use l2_packet functionality.
I have tested on NetBSD 5.0.1 with WPA-PSK(TKIP).
On NetBSD, we should configure some parameters manually out of hostapd
like below.
ifconfig ath0 mediaopt hostap
ifconfig ath0 mode 11g
ifconfig ath0 chan 6
This patch does these automatically. Maybe there will be some
objections, like "hardware configuration is not hostapd/wpa_supplican's
work". So I will write the reasons why I made this patch.
1. For usability.
2. The first command fails when previous state is adhoc. This patch is
free from previous state.
3. Some driver wrappers configure these automatically (like nl80211).
4. I have wasted time trying to find out these command were needed :(
The ps3 wireless kernel driver has wireless extension support.
There is a legacy wpa_supplicant driver, and support for this
has been removed from the kernel driver, as no distributions
are using it.
This may help in debugging why cfg80211 refused the association
command since the scan results should include information about all
pending authentication and association states.
