The case of PEAPv0 with crypto binding did not clear some of the
temporary keys from stack/heap when those keys were not needed anymore.
Clear those explicitly to avoid unnecessary caching of keying material.
Signed-off-by: Jouni Malinen <j@w1.fi>
Derive EMSK when using EAP-PEAP to enable ERP. In addition, change the
MSK derivation for EAP-PEAP to always derive 128 octets of key material
instead of the 64 octets to cover just the MSK. This is needed with the
PRF used in TLS 1.3 since the output length is mixed into the PRF
context.
Signed-off-by: Jouni Malinen <j@w1.fi>
The avoid channels are notified through
QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY allow minimal traffic, so
enhance the P2P behavior accordingly by considering these avoid
frequencies for P2P discovery/negotiation as long as they are not in
disallowed frequencies list.
Additionally, do not return failure when none of social channels are
available as operation channel, rather, mark the op_channel/op_reg_class
to 0 as this would anyway get selected during the group formation in
p2p_prepare_channel.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
ieee802_11_rx_wnmsleep_req() might have been called for a short frame
that has no more payload after the Public Action field, i.e., with len
== 0. The bounds checking for the payload length was done only for the
information elements while the one octet Dialog Token field was read
unconditionally. In the original implementation, this could have
resulted in reading one octet beyond the end of the received frame data.
This case has not been reachable after the commit e0785ebbbd ("Use
more consistent Action frame RX handling in both AP mode paths"), but it
is better to address the specific issue in ieee802_11_rx_wnmsleep_req()
as well for additional protection against accidential removal of the
check and also to have something that can be merged into an older
version (pre-v2.7) if desired. The comments below apply for such older
versions where the case could have been reachable.
Depending on driver interface specific mechanism used for fetching the
frame, this could result in reading one octet beyond the end of a
stack/hash buffer or reading an uninitialized octet from within a
buffer. The actual value that was read as the Dialog Token field is not
used since the function returns immediately after having read this value
when there is no information elements following the field.
This issue was initially added in commit d32d94dbf4 ("WNM: Add
WNM-Sleep Mode implementation for AP") (with CONFIG_IEEE80211V=y build
option) and it remained in place during number of cleanup and fix
changes in this area and renaming of the build parameter to
CONFIG_WNM=y. The impacted function was not included in any default
build without one of the these optional build options being explicitly
enabled. CONFIG_WNM=y is still documented as "experimental and not
complete implementation" in hostapd/defconfig. In addition, commit
114f2830d2 ("WNM: Ignore WNM-Sleep Mode Request in wnm_sleep_mode=0
case") made this function exit before the impact read if WNM-Sleep Mode
support was not explicitly enabled in runtime configuration
(wnm_sleep_mode=1 in hostapd.conf). Commit e0785ebbbd ("Use more
consistent Action frame RX handling in both AP mode paths") made this
code unreachable in practice.
Add an explicit check that the frame has enough payload before reading
the Dialog Token field in ieee802_11_rx_wnmsleep_req().
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This patch adds a new flag 'crl_reload_interval' to reload CRL
periodically. This can be used to reload ca_cert file and the included
CRL information on every new TLS session if difference between the last
reload and the current time in seconds is greater than
crl_reload_interval.
This reloading is used for cases where check_crl is 1 or 2 and the CRL
is included in the ca_file.
Signed-off-by: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>
Signed-off-by: Jared Bents <jared.bents@rockwellcollins.com>
It is now possible to optionally specify keyid for
each wpa_psk_file entry:
keyid=something 00:00:00:00:00:00 secretpassphrase
When station connects and the passphrase it used
has an associated keyid it will be appended to the
AP-STA-CONNECTED event string:
wlan0: AP-STA-CONNECTED 00:36:76:21:dc:7b keyid=something
It's also possible to retrieve it through the control interface:
$ hostapd_cli all_sta
Selected interface 'ap0'
00:36:76:21:dc:7b
...
keyid=something
New hostapd is able to read old wpa_psk_file. However, old hostapd will
not be able to read the new wpa_psk_file if it includes keyids.
Signed-off-by: Michal Kazior <michal@plume.com>
This doesn't change any behavior on its own. It's going to be used to
expose per-station keyids and allow reloading passphrases in runtime.
Signed-off-by: Michal Kazior <michal@plume.com>
Support the new Extended Capabilities field bits 81 and 82 to indicate
whether SAe Password Identifiers are in use.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This new QCA vendor attribute indicates the EVM value in netlink.
Signed-off-by: stonez <stonez@codeaurora.org>
:100644 100644 ad5dac2... ede4fc8... M src/common/qca-vendor.h
When using LibreSSL build fails with:
../src/crypto/tls_openssl.o: in function `tls_connection_client_cert':
../src/crypto/tls_openssl.c:2817: undefined reference to `SSL_use_certificate_chain_file'
collect2: error: ld returned 1 exit status
make: *** [Makefile:1901: wpa_supplicant] Error 1
There is no such function in LibreSSL.
Signed-off-by: Stefan Strogin <stefan.strogin@gmail.com>
An optional parameter "he" is added to p2p_connect, p2p_group_add, and
p2p_invite to enable 11ax HE support. The new p2p_go_he=1 configuration
parameter can be used to request this to be enabled by default.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
The vendor command QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY was defined
to carry the list of avoid frequencies that aim to avoid any
interference with other coexistencies. This recommendation was followed
strictly by trying to prevent WLAN traffic on the impacted channels.
This commit refines the expectation of the interface by defining this
avoid channel list to allow minimal traffic but not heavier one. For
example, P2P may still be able to use avoid list frequencies for P2P
discovery and GO negotiation if the actual group can be set up on a not
impact channel.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Add support for configuring parameters for the MU EDCA Parameter Set
element per IEEE P802.11ax/D3.0.
Signed-off-by: Siva Mullati <siva.mullati@intel.com>
If the libnl version is not specified explicitly with CONFIG_LIBNL*, try
to check for the most likely case today with pkg-config.
Signed-off-by: Jouni Malinen <j@w1.fi>
Fix compilation issue if we want to build wpa_supplicant without any
wireless connectivity but only with MACSec support via Linux kernel
driver.
Signed-off-by: Andrey Kartashev <a.s.kartashev@gmail.com>
Two recent changes to MKA create a situation where a new MI is generated
every time a SAK Use parameter set is decoded. The first change moved
invalid key detection from ieee802_1x_decode_basic_body() to
ieee802_1x_kay_decode_mpkdu():
commit db9ca18bbf ("mka: Do not ignore MKPDU parameter set decoding failures")
The second change forces the KaY to generate a new MI when an invalid
key is detected:
commit a8aeaf41df ("mka: Change MI if key invalid")
The fix is to move generation of a new MI from the old invalid key
detection location to the new location.
Fixes: a8aeaf41df ("mka: Change MI if key invalid")
Signed-off-by: Michael Siedzik <msiedzik@extremenetworks.com>
Upon issuing a connect request we need to indicate that we want the
driver to offload the 802.1X 4-way handshake for us. Indicate it if
the driver capability supports the offload.
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Allow drivers to indicate support for offloading 4-way handshake for
either IEEE 802.1X (WPA2-Enterprise; EAP) and/or WPA/WPA2-PSK
(WPA2-Personal) by splitting the WPA_DRIVER_FLAGS_4WAY_HANDSHAKE flag
into two separate flags.
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
When an interface is re-enabled after it was disabled during CAC, it
won't ever get active since hostapd is waiting for a CAC_FINISHED while
kernel side is waiting for a CMD_RADAR_DETECT to start a CAC.
This commit checks for a pending CAC when an interface is enabled and if
so restarts its DFS processing.
Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
In the previous RADIUS client implementation, when there are multiple
RADIUS servers, we kept trying the next server when the current message
can not be acked. It leads to endless retry when all the RADIUS servers
are down.
Fix this by keeping a counter for the accumulated retransmit attempts
for the message, and guarantee that after all the servers failover
RADIUS_CLIENT_MAX_FAILOVER times the message will be dropped.
Another issue with the previous code was that the decision regarding
whether the server should fail over was made immediately after we send
out the message. This patch guarantees we consider whether a server
needs failover after pending ack times out.
Signed-off-by: Bo Chen<bochen@meraki.com>
Define QCA vendor command attributes to configure HE +HTC support and
HE operating mode control transmission. This is used to configure the
testbed device.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
These are not allowed in ISO C++ (and well, not really in ISO C either,
but that does not result in compiler warning without pedantic
compilation).
Since ieee802_11_common.h may end up getting pulled into C++ code for
some external interfaces, it is more convenient to keep it free of these
cases. Pull in ieee802_11_defs.h to get enum phy_type defined and move
enum chan_width to common/defs.h (which was already pulled in into
src/drivers/driver.h and src/common/ieee802_11_common.h).
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
While the AP is configured to enable both FT-PSK and WPA-PSK, an HP
printer request both AKMs (copied from AP?) in Association Request
frame, but don't add MDIE and don't use FT. This results in the
connection failing.
Next in logs we see:
RSN: Trying to use FT, but MDIE not included
IE - hexdump(len=26): 30 18 01 00 00 0f ac 04 01 00 00 0f ac 04
02 00 00 0f ac 02 00 0f ac 04 00 00
This is seen with some HP and Epson printers. Work around this by
stripping FT AKM(s) when MDE is not present and there is still a non-FT
AKM available.
Signed-off-by: Janusz Dziedzic <janusz@plumewifi.com>
The Android-specific chmod and chown operations on the client socket
(for communication with wpa_supplicant) did not protect against file
replacement between the bind() and chmod()/chown() calls. If the
directory in which the client socket is created (depends a bit on the
version and platform, but /data/misc/wifi/sockets is commonly used)
allows write access to processes that are different (less privileged)
compared to the process calling wpa_ctrl_open2(), it might be possible
to delete the socket file and replace it with something else (mainly, a
symlink) before the chmod/chown operations occur. This could have
resulted in the owner or permissions of the target of that symlink being
modified.
In general, it would be safest to use a directory which has more limited
write privileges (/data/misc/wifi/sockets normally has 'wifi' group
(AID_WIFI) with write access), but if that cannot be easily changed due
to other constraints, it is better to make wpa_ctrl_open2() less likely
to enable this type of race condition between the operations.
Replace chown() with lchown() (i.e., a version that does not dereference
symlinks) and chmod() with fchmod() on the socket before the bind() call
which is also not going to dereference a symlink (whereas chmod()
would). lchown() is a standard operation, but the fchmod() on the socket
is less so (unspecified behavior in some systems). However, it seems to
work on Linux and in particular, on Android, where this code is
executed.
Signed-off-by: Jouni Malinen <j@w1.fi>
While selecting a new channel as a reaction to radar event we need to
take into account supported bandwidth for each channel provided via
nl80211. Without this modification hostapd might select an unsupported
channel that would fail during AP startup.
Signed-off-by: Dmitry Lebed <dlebed@quantenna.com>
While doing automatic channel selection we need to take into account
supported bandwidth for each channel provided via nl80211. Without this
modification hostapd might select an unsupported channel which would
fail during AP startup.
Signed-off-by: Dmitry Lebed <dlebed@quantenna.com>
This adds checks to common code to verify supported bandwidth options
for each channel using nl80211-provided info. No support of additional
modes is added, just additional checks. Such checks are needed because
driver/hardware can declare more strict limitations than declared in the
IEEE 802.11 standard. Without this patch hostapd might select
unsupported channel and that will fail because Linux kernel does check
channel bandwidth limitations.
Signed-off-by: Dmitry Lebed <dlebed@quantenna.com>
Add NL80211_FREQUENCY_ATTR_NO_* channel attributes parsing. This is
needed for correct checking if channel is available in a particular
bandwidth.
Signed-off-by: Dmitry Lebed <dlebed@quantenna.com>
Add support for 160 MHz BW channels to automatic channel selection
algorithm. Only 36 and 100 channels are supported as 160 MHz channels.
Signed-off-by: Dmitry Lebed <lebed.dmitry@gmail.com>
Move to the version used in draft-ietf-emu-eap-tls13-03.txt, i.e.,
include the 0x0D prefix and use a different TLS-Exporter() label string.
Signed-off-by: Jouni Malinen <j@w1.fi>
Some distributions (e.g., Debian) have started introducting systemwide
OpenSSL policies to disable older protocol versions and ciphers
throughout all programs using OpenSSL. This can result in significant
number of interoperability issues with deployed EAP implementations.
Allow explicit wpa_supplicant (EAP peer) and hostapd (EAP server)
parameters to be used to request systemwide policies to be overridden if
older versions are needed to be able to interoperate with devices that
cannot be updated to support the newer protocol versions or keys. The
default behavior is not changed here, i.e., the systemwide policies will
be followed if no explicit override configuration is used. The overrides
should be used only if really needed since they can result in reduced
security.
In wpa_supplicant, tls_disable_tlsv1_?=0 value in the phase1 network
profile parameter can be used to explicitly enable TLS versions that are
disabled in the systemwide configuration. For example,
phase1="tls_disable_tlsv1_0=0 tls_disable_tlsv1_1=0" would request TLS
v1.0 and TLS v1.1 to be enabled even if the systemwide policy enforces
TLS v1.2 as the minimum version. Similarly, openssl_ciphers parameter
can be used to override systemwide policy, e.g., with
openssl_ciphers="DEFAULT@SECLEVEL=1" to drop from security level 2 to 1
in Debian to allow shorter keys to be used.
In hostapd, tls_flags parameter can be used to configure similar
options. E.g., tls_flags=[ENABLE-TLSv1.0][ENABLE-TLSv1.1]
Signed-off-by: Jouni Malinen <j@w1.fi>
TLS v1.3 was already disabled by default for EAP-FAST, EAP-TTLS,
EAP-PEAP, and EAP-TLS, but the unauthenticated client cases of EAP-TLS
-like functionality (e.g., the one used in OSEN) were missed. Address
those EAP types as well in the same way of disabling TLS v1.3 by default
for now to avoid functionality issues with TLS libraries that enable TLS
v1.3 by default.
Signed-off-by: Jouni Malinen <j@w1.fi>
SSL_use_certificate_chain_file() was added in OpenSSL 1.1.0, so need to
maintain the old version using SSL_use_certificate_file() for backwards
compatibility.
Fixes: 658c39809b ("OpenSSL: Load chain certificates from client_cert file")
Signed-off-by: Jouni Malinen <j@w1.fi>
FT-over-the-DS has a special case where the STA entry (and as such, the
TK) has not yet been configured to the driver depending on which driver
interface is used. For that case, allow add-STA operation to be used
(instead of set-STA). This is needed to allow mac80211-based drivers to
accept the STA parameter configuration. Since this is after a new
FT-over-DS exchange, a new TK has been derived after the last STA entry
was added to the driver, so key reinstallation is not a concern for this
case.
Fixes: 0e3bd7ac68 ("hostapd: Avoid key reinstallation in FT handshake")
Signed-off-by: Jouni Malinen <j@w1.fi>
The documentation in the hostapd.conf file says that the dynamic_vlan
variable is used to control whether VLAN assignments are accepted from a
RADIUS server. The implication seems to be that a static VLAN assignment
will come from the accept_mac_file if dynamic_vlan is set to 0, and a
dynamic assignment will come from the RADIUS server if dynamic_vlan is
set to 1. Instead, I'm seeing that the static settings from the
accept_mac_file are ignored if dynamic_vlan is set to 0, but used if
dynamic_vlan is set to 1. If dynamic_vlan is set to 1 and the RADIUS
server does not provide a VLAN, then the accept_mac_file assignment is
overridden and the STA is assigned to the default non-VLANed interface.
If my understanding of the expected behavior is correct, then I believe
the problem is in ap_sta_set_vlan(). That routine checks the
dynamic_vlan setting, but has no way of determining whether the incoming
vlan_desc is static (i.e., from accept_mac_file) or dynamic (i.e., from
a RADIUS server).
I've attached a patch that gets hostapd working as I believe it's meant
to, and updates the documentation to make the implicit behavior
explicit.
The functional changes are:
- hostapd_allowed_address() will always extract the vlan_id from the
accept_macs file. It will not update the vlan_id from the RADIUS cache
if dynamic_vlan is DISABLED.
- hostapd_acl_recv_radius() will not update the cached vlan_id if
dynamic_vlan is DISABLED.
- ieee802_1x_receive_auth() will not update the vlan_id if dynamic_vlan
is DISABLED.
More cosmetic:
Most of the delta is just moving code out of ieee802_1x_receive_auth()
into a new ieee802_1x_update_vlan() routine. While I initially did this
because the new DISABLED check introduced excessive indentation, it has
the added advantage of eliminating the vlan_description allocation and
os_memset() call for all DYNAMIC_VLAN_DISABLED configs.
I've done a couple rounds of review offline with Michael Braun (who has
done much of the work in this part of the code) and incorporated his
feedback.
If dynamic_vlan=0 (disabled), vlan assignments will be managed using the
local accept_mac_file ACL file, even if a RADIUS server is being used
for user authentication. This allows us to manage users and devices
independently.
Signed-off-by: Nils Nieuwejaar <nils.nieuwejaar@gmail.com>
The new ieee802_11_ext_capab() and wpa_bss_ext_capab() functions can be
used to check whether a specific extended capability bit is set instead
of having to implement bit parsing separately for each need.
Signed-off-by: Jouni Malinen <j@w1.fi>
The PADDING array used when adding padding bits in MD4 never change
so can be made const. Making it const puts the array in .rodata
section and can save a few bytes of RAM for systems running without
virtual memory.
Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sony.com>
After performing a successful channel switch, the AP should update its
own neighbor report element, so do this from src/ap/drv_callbacks.c
after a successful switch.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Move functions corresponding to neighbor report elements to
src/ap/neighbor_db.[c,h] in preparation to using them after channel
switch from src/ap/drv_callbacks.c.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
The function sha512_compress() has a local variable that consumes 640
bytes. This is very heavy for embedded devices that have limited stack
resources. Handle this by replacing the static allocation with a dynamic
one.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
IEEE P802.11-REVmd/D2.0, 9.4.2.20.7 (Beacon request) and 9.4.2.21.7
(Beacon report) add the Last Beacon Report Indication subelement to
Beacon Request and Beacon Report elements.
Add the Last Beacon Report Indication subelement to all Beacon Report
elements if the Beacon Request indicated that this subelement is
requested.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
When the frame body subelement would cause the measurement report
element to exceed the maximum element size, the frame body subelement
used to be truncated. In addition, some elements were always truncated
in order to keep the reported frame body short (e.g. RSN IE).
Alternatively, IEEE P802.11-REVmd/D2.0, 9.4.2.21.7 extension to Beacon
reporting can be used: The frame body subelement is fragmented across
multiple beacon report elements, and the reported frame body fragment ID
subelement is added.
Use beacon report fragmentation instead of truncating the frame body
as this method gives the AP a more complete information about the
reported APs.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
EV_SET() for EV_ADD used a specific filter type, but that same filter
type was not provided to the matching EV_DELETE case. This resulted in
the kernel rejecting the deletion with "Invalid argument". Fix this by
setting the same filter type for both operations.
Fixes: f9982b3212 ("Implement kqueue(2) support via CONFIG_ELOOP_KQUEUE")
Signed-off-by: Jouni Malinen <j@w1.fi>
The previous implementation did not work if the first registered socket
had fd > 16 or if the fd was more than double the largest value used in
previous registrations. Those cases could result in too small a memory
allocation being used and writes/reads beyond the end of that buffer.
This fix is applicable to CONFIG_ELOOP_EPOLL=y and CONFIG_ELOOP_KQUEUE=y
builds.
Fixes: f0356ec85c ("eloop: Add epoll option for better performance")
Signed-off-by: Jouni Malinen <j@w1.fi>
According to random(4) manual, /dev/random is essentially deprecated on
Linux for quite some time:
"The /dev/random interface is considered a legacy interface, and
/dev/urandom is preferred and sufficient in all use cases, with the
exception of applications which require randomness during early boot
time; for these applications, getrandom(2) must be used instead, because
it will block until the entropy pool is initialized."
An attempt to use it would cause unnecessary blocking on machines
without a good hwrng even when it shouldn't be needed. Since Linux 3.17,
a getrandom(2) call is available that will block only until the
randomness pool has been seeded.
It is probably not a good default yet as it requires a fairly recent
kernel and glibc (3.17 and 2.25 respectively).
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
In 2013 or so, IFNAME=foo was prepended to at least the Unix socket
communication from wpa_supplicant to wpa_cli. This broke the (fragile)
logic that made ping/pong work more often when wpa_supplicant is busy
sending logging info to wpa_cli.
Adding check for IFNAME=foo makes this work better.
Signed-off-by: Ben Greear <greearb@candelatech.com>
This helps the server to build the chain to trusted CA when PEM encoding
of client_cert is used with multiple listed certificates. This was
already done for the server certificate configuration, but the client
certificate was limited to using only the first certificate in the file.
Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Legacy ioctl() through SIOCDEVPRIVATE are deprecated. Follow the
approach taken by bridge-utils and make use of new bridge ioctl's
whenever possible.
For example, using legacy ioctl() breaks dynamic VLAN mode on 32-bit
Linux systems running 64-bit kernels.
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
If the internal EAP server is used instead of an external RADIUS server,
sm->identity does not get set. Use the identity from the internal EAP
server in such case to get the dot1xAuthSessionUserName value in STA MIB
information.
Signed-off-by: Jouni Malinen <j@w1.fi>
