This converts os_snprintf() result validation cases to use
os_snprintf_error() in cases where success condition was used to execute
a step. These changes were done automatically with spatch using the
following semantic patch:
@@
expression E1,E2,E3;
statement S1;
@@
E1 = os_snprintf(E2, E3, ...);
- if (\( E1 >= 0 \| E1 > 0 \) && \( (size_t) E1 < E3 \| E1 < (int) E3 \| E1 < E3 \))
+ if (!os_snprintf_error(E3, E1))
S1
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, the immediate EAPOL authenticator startup was scheduled
without having received EAPOL-Start only for the case where WPA/WPA2 was
enabled. This can be extended to speed up non-WPA/WPA2 cases as well if
the STA includes WPS IE in Association Request frame.
Signed-off-by: Jouni Malinen <j@w1.fi>
If "ADD bss_config=" command failed in driver_init() or
hostapd_setup_interface(), some of the allocated resources were not
freed properly.
Signed-off-by: Jouni Malinen <j@w1.fi>
Using aes_wrap() to initialize a data structure seemed to be too much
for some static analyzers to understand. Make it obvious that the target
is not just the single struct member. (CID 68111)
Signed-off-by: Jouni Malinen <j@w1.fi>
Using aes_unwrap() to initialize a data structure seemed to be too much
for some static analyzers to understand. Make it obvious that the target
is initialized and that the target is not just the single struct member.
In addition, clean up the design to avoid removal of const with a
typecast. (CID 68112, CID 68134, CID 68135, CID 68136)
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 16689c7cfc ('hostapd: Allow ACS to
be offloaded to the driver') used incorrect operator to determine
whether HT40 was configured. Fix that to mask the ht_capab bit
correctly. (CID 77286)
Signed-off-by: Jouni Malinen <j@w1.fi>
Derive rRK and rIK on EAP server if ERP is enabled and use these keys to
allow EAP re-authentication to be used and to derive rMSK.
The new hostapd configuration parameter eap_server_erp=1 can now be used
to configure the integrated EAP server to derive EMSK, rRK, and rIK at
the successful completion of an EAP authentication method. This
functionality is not included in the default build and can be enabled
with CONFIG_ERP=y.
Signed-off-by: Jouni Malinen <j@w1.fi>
hostapd can now be configured to transmit EAP-Initiate/Re-auth-Start
before EAP-Request/Identity to try to initiate ERP. This is disabled by
default and can be enabled with erp_send_reauth_start=1 and optional
erp_reauth_start_domain=<domain>.
Signed-off-by: Jouni Malinen <j@w1.fi>
Using QCA vendor command, allow ACS function to be offloaded to the
driver. Once channels are selected, hostapd is notified to perform OBSS
operation.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This flag was left in the STA entry for the short duration after the STA
gets deauthenticated. If the STA sends a Class 2 or 3 frame during that
short time, the AP would not have replied with Deauthentication frame
indicating no association is present.
Signed-off-by: Jouni Malinen <j@w1.fi>
hostapd was still providing couple of parameters that were used only in
the already removed driver_test.c framework.
Signed-off-by: Jouni Malinen <j@w1.fi>
This field needs to be validated in addition to validating the total
length of the received frame to avoid reading beyond the frame buffer.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Only the NS frames should be checked to be long enough to cover all the
fields used in the NS data structure. This allows shorter RA and NA
frames to be processed for multicast-to-unicast rules.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
l2_packet_send() returns >= 0 on success, i.e., non-zero value does not
mean failure. Fix this debug print to show up only on negative return
values.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This makes it easier to debug operations. The debug message is marked
EXCESSIVE, though, to avoid filling the logs with too much information
in default debugging cases.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
There is no point in trying to send the unicast converted version to a
STA that is not in authorized state since the driver would be expected
to drop normal TX Data frames in such state.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
These need to be marked packed to avoid issues with compilers
potentially adding padding between the fields (e.g., gcc on 64-bit
seemed to make struct icmpv6_ndmsg two octets too long which broke IPv6
address discovery).
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This replaces the use of Linux kernel header files (linux/ip.h,
linux/udp.h, linux/ipv6.h, and linux/icmpv6.h) with equivalent header
files from C library. In addition, ndisc_snoop.c is now built
conditionally on CONFIG_IPV6=y so that it is easier to handle hostapd
builds with toolchains that do not support IPv6 even if Hotspot 2.0 is
enabled in the build.
Signed-off-by: Jouni Malinen <j@w1.fi>
This commit inserts Finite Cyclic Group to Anti-Clogging Token request
frame because IEEE Std 802.11-2012, Table 8-29 says "Finite Cyclic Group
is present if Status is zero or 76".
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
The mesh anti-clogging functionality is implemented partially. This
patch fixes to parse anti-clogging request frame and use anti-clogging
token.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
This extends the earlier PeerKey station side design to be used on the
AP side as well by passing pointer and already validated length from the
caller rather than parsing the length again from the frame buffer. This
avoids false warnings from static analyzer (CID 62870, CID 62871,
CID 62872).
Signed-off-by: Jouni Malinen <j@w1.fi>
hostapd control interface can now be used to request transmission of a
BSS Transition Management Request frame to a specified station.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If the 4-way handshake ends up having to retransmit the EAPOL-Key
message 1/4 due to a timeout on waiting for the response, it is possible
for the Supplicant to change SNonce between the first and second
EAPOL-Key message 2/4. This is not really desirable due to extra
complexities it causes on the Authenticator side, but some deployed
stations are doing this.
This message sequence looks like this:
AP->STA: EAPOL-Key 1/4 (replay counter 1, ANonce)
AP->STA: EAPOL-Key 1/4 (replay counter 2, ANonce)
STA->AP: EAPOL-Key 2/4 (replay counter 1, SNonce 1)
AP->STA: EAPOL-Key 3/4 (replay counter 3, ANonce)
STA->AP: EAPOL-Key 2/4 (replay counter 2, SNonce 2)
followed by either:
STA->AP: EAPOL-Key 4/4 (replay counter 3 using PTK from SNonce 1)
or:
AP->STA: EAPOL-Key 3/4 (replay counter 4, ANonce)
STA->AP: EAPOL-Key 4/4 (replay counter 4, using PTK from SNonce 2)
Previously, Authenticator implementation was able to handle the cases
where SNonce 1 and SNonce 2 were identifical (i.e., Supplicant did not
update SNonce which is the wpa_supplicant behavior) and where PTK
derived using SNonce 2 was used in EAPOL-Key 4/4. However, the case of
using PTK from SNonce 1 was rejected ("WPA: received EAPOL-Key 4/4
Pairwise with unexpected replay counter" since EAPOL-Key 3/4 TX and
following second EAPOL-Key 2/4 invalidated the Replay Counter that was
used previously with the first SNonce).
This commit extends the AP/Authenticator workaround to keep both SNonce
values in memory if two EAPOL-Key 2/4 messages are received with
different SNonce values. The following EAPOL-Key 4/4 message is then
accepted whether the MIC has been calculated with the latest SNonce (the
previously existing behavior) or with the earlier SNonce (the new
extension). This makes 4-way handshake more robust with stations that
update SNonce for each transmitted EAPOL-Key 2/4 message in cases where
EAPOL-Key message 1/4 needs to be retransmitted.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When DGAF Disable is on, perform multicast-to-unicast for DHCP packets
and Router Advertisement packets. This is a requirement for Hotspot 2.0.
Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
This commit establishes the infrastructure, and handles the Neighbor
Solicitation and Neighbor Advertisement frames. This will be extended
in the future to handle other frames.
Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
Multicast-to-unicast conversion send will be needed in various part of
Proxy ARP and DGAF Disable.
Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
This allows adding/deleting an IPv6 neighbor entry to/from the bridge,
to which the BSS belongs. This commit adds the needed functionality in
driver_nl80211.c for the Linux bridge implementation. In theory, this
could be shared with multiple Linux driver interfaces, but for now, only
the main nl80211 interface is supported.
Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
It is possible that a station device might miss an ACK for an
authentication, association, or action frame, and thus retransmit the
same frame although the frame is already being processed in the stack.
While the duplicated frame should really be dropped in the kernel or
firmware code where duplicate detection is implemented for data frames,
it is possible that pre-association cases are not fully addressed (which
is the case at least with mac80211 today) and the frame may be delivered
to upper layer stack.
In such a case, the local AP will process the retransmitted frame although
it has already handled the request, which might cause the station to get
confused and as a result disconnect from the AP, blacklist it, etc.
To avoid such a case, save the sequence control of the last processed
management frame and in case of retransmissions drop them.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
If DFS implementation was built in, some configurations with drivers
that do not provide mode information could end up dereferencing a NULL
pointer. Fix this by skipping DFS operations in such cases since not
having information about modes and channels means that hostapd could not
perform DFS anyway (i.e., either this is not a wireless driver or the
driver takes care of DFS internally).
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 7f0303d5b0 ('hostapd: Verify VHT
160/80+80 MHz driver support') added couple of hapd->iface->current_mode
dereferences of which the one in hostapd_set_freq() can be hit with some
configuration files when using driver wrappers that do not have hw_mode
data, i.e., when current_mode is NULL. This could result in segmentation
fault when trying to use driver=wired. Fix this by checking that
current_mode is not NULL before dereferencing it to get vht_capab.
Signed-off-by: Jouni Malinen <j@w1.fi>
This patch makes four MIB variables for plink configurable and sets the
correct default values based on IEEE Std 802.11s-2011.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Add timer to do SAE re-authentication with number of tries defined
by MESH_AUTH_RETRY and timeout defined by MESH_AUTH_TIMEOUT.
Ignoring the sending of reply message on "SAE confirm before commit"
to avoid "ping-pong" issues with other mesh nodes. This is obvious when
number of mesh nodes in MBSS reaching 6.
Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Add state transition logic to the SAE frame handling in order to more
fully implement the state machine from the IEEE 802.11 standard. Special
cases are needed for infrastructure BSS case to avoid unexpected
Authentication frame sequence by postponing transmission of the second
Authentication frame untile the STA sends its Confirm.
[original patch by: Thomas Pedersen <thomas@noack.us>]
Signed-off-by: Bob Copeland <me@bobcopeland.com>
New kernels in wiphy_suspend() will call cfg80211_leave_all() that will
eventually end up in cfg80211_stop_ap() unless wowlan_triggers were set.
For now, use the parameters from the station mode as-is. It may be
desirable to extend (or constraint) this in the future for specific AP
mode needs.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
This adds support for AKM 00-0F-AC:11 to specify the integrity and
key-wrap algorithms for EAPOL-Key frames using the new design where
descriptor version is set to 0 and algorithms are determined based on
AKM.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new AKM uses a different mechanism of deriving the PMKID based on
KCK instead of PMK. hostapd was already doing this after the KCK had
been derived, but wpa_supplicant functionality needs to be moved from
processing of EAPOL-Key frame 1/4 to 3/4 to have the KCK available.
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds definitions for the 128-bit level Suite B AKM 00-0F-AC:11. The
functionality itself is not yet complete, i.e., this commit only
includes parts to negotiate the new AKM.
Signed-off-by: Jouni Malinen <j@w1.fi>
Some flag already using a bit larger than 32, so extend the hostapd
drv_flags type similarly to the earlier wpa_supplicant change to get the
full flag content.
Signed-off-by: Yanbo Li <yanbol@qti.qualcomm.com>
This was used in hostapd driver_test.c, but that driver wrapper has been
removed and there are no remaining or expected users for
EVENT_FT_RRB_RX.
Signed-off-by: Jouni Malinen <j@w1.fi>
Proxy ARP allows the AP devices to keep track of the hardware address to
IP address mapping of the STA devices within the BSS. When a request for
such information is made (i.e., ARP request, Neighbor Solicitation), the
AP will respond on behalf of the STA device within the BSS. Such
requests could originate from a device within the BSS or also from the
bridge. In the process of the AP replying to the request (i.e., ARP
reply, Neighbor Advertisement), the AP will drop the original request
frame. The relevant STA will not even know that such information was
ever requested.
This feature is a requirement for Hotspot 2.0, and is defined in IEEE
Std 802.11-2012, 10.23.13. While the Proxy ARP support code mainly
resides in the kernel bridge code, in order to optimize the performance
and simplify kernel implementation, the DHCP snooping code was added to
the hostapd.
Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
This allows setting a network parameter on the bridge that the BSS
belongs to.
This commit adds the needed functionality in driver_nl80211.c for the
Linux bridge implementation. In theory, this could be shared with
multiple Linux driver interfaces, but for now, only the main nl80211
interface is supported.
Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
This allows setting a bridge port attribute. Specifically, the bridge
port in this context is the port to which the BSS belongs.
This commit adds the needed functionality in driver_nl80211.c for the
Linux bridge implementation. In theory, this could be shared with
multiple Linux driver interfaces, but for now, only the main nl80211
interface is supported.
Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
This allows adding/deleting an IPv4 neighbor entry to/from the bridge,
to which the BSS belongs. This commit adds the needed functionality in
driver_nl80211.c for the Linux bridge implementation. In theory, this
could be shared with multiple Linux driver interfaces, but for now, only
the main nl80211 interface is supported.
Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
These can be convenient for upper layer programs to determine if the
hostapd interface gets disabled/re-enabled, e.g., due to rfkill
block/unblock.
Signed-off-by: Jouni Malinen <j@w1.fi>
Use the 'no_ir' notation instead of the 'passive scan' and
'no_ibss' notations to match the earlier change in nl80211.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Modify hostapd.c logic to add checks for valid mconf data structure:
- For hostapd_setup_bss we don't need to flush old stations in case
we're rejoining a mesh network.
- In hostapd_setup_interface_complete, we don't need to setup the
interface until we join the mesh (same reasoning for
hostapd_tx_queue_params).
Signed-off-by: Javier Lopez <jlopex@gmail.com>
Signed-off-by: Jason Mobarak <x@jason.mobarak.name>
The mesh peering manager establishes and maintains links among
mesh peers, tracking each peer link via a finite state machine.
This implementation supports open mesh peerings.
[assorted fixes from Yu Niiro <yu.niiro@gmail.com>]
[more fixes from Masashi Honma <masashi.honma@gmail.com>]
Signed-off-by: Javier Lopez <jlopex@gmail.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Ashok Nagarajan <ashok.dragon@gmail.com>
Signed-off-by: Jason Mobarak <x@jason.mobarak.name>
Signed-hostap: Bob Copeland <me@bobcopeland.com>
Add routines to (de)initialize mesh interface data structures and
join and leave mesh networks.
Signed-off-by: Javier Lopez <jlopex@gmail.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Jason Mobarak <x@jason.mobarak.name>
Signed-off-by: Thomas Pedersen <thomas@noack.us>
If both HT and VHT was enabled on AP and channel switch event from the
driver indicated that HT was disabled, VHT was left enabled. This
resulted in the following channel configuration failing. Fix this by
disabling VHT if HT gets disabled.
Signed-off-by: Jouni Malinen <j@w1.fi>
Add smps_modes field, and let the driver fill it with its supported SMPS
modes (static/dynamic). This will let us start an AP with specific SMPS
mode (e.g., dynamic) that will allow it to reduce its power usage.
Signed-off-by: Eliad Peller <eliad@wizery.com>
This avoids an issue where a wpa_supplicant build with CONFIG_P2P=y and
CONFIG_HS20=y ended up processing a P2P SD query twice when operating as
a GO and sending out two replies. Only the P2P SD implementation should
reply to P2P SD query in such a case.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The new "bss_load_update_period" parameter can be used to configure
hostapd to advertise its BSS Load element in Beacon and Probe Response
frames. This parameter is in the units of BUs (Beacon Units).
When enabled, the STA Count and the Channel Utilization value will be
updated periodically in the BSS Load element. The AAC is set to 0 sinze
explicit admission control is not supported. Channel Utilization is
calculated based on the channel survey information from the driver and
as such, requires a driver that supports providing that information for
the current operating channel.
Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
It is now possible to run hwsim_test like data connectivity test through
wpa_supplicant/hostapd control interface if CONFIG_TESTING_OPTIONS=y is
used for the build. Test functionality is enabled/disabled at runtime
with "DATA_TEST_CONFIG <1/0>". The "DATA_TEST_TX <dst> <src> <tos>"
command can be used to request a test frame to be transmitted.
"DATA-TEST-RX <dst> <src>" event is generated when the test frame is
received.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes hostapd create PMKSA cache entries from SAE authentication
and allow PMKSA caching to be used with the SAE AKM.
Signed-off-by: Jouni Malinen <j@w1.fi>
This allows multiple sessions using the same PMKSA cache entry to be
combined more easily at the server side. Acct-Session-Id is still a
unique identifier for each association, while Acct-Multi-Session-Id will
maintain its value for all associations that use the same PMKSA.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 8b24861154 ('Add Acct-Session-Id
into Access-Request messages') added Acct-Session-Id building into the
helper function shared between authentication and accounting messages.
However, it forgot to remove the same code from the generation of
accounting messages and as such, ended up with Accounting-Request
messages containing two copies of this attribute. Fix this by removing
the addition of this attribute from the accounting specific function.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new openssl_cipher configuration parameter can be used to select
which TLS cipher suites are enabled when hostapd is used as an EAP
server with OpenSSL as the TLS library.
Signed-off-by: Jouni Malinen <j@w1.fi>
This use does not really need a strong random number, so fall back to
os_random() if a theoretical error case occurs. (CID 72682)
Signed-off-by: Jouni Malinen <j@w1.fi>
While this specific case does not really care what value is used, the
the theoretical error case can be handled more consistently. (CID 72684)
Signed-off-by: Jouni Malinen <j@w1.fi>
The hlen and len variables are identical here, but only the hlen was
used in the end. Change this to use the len variable to avoid
unnecessary static analyzer warnings about unused writes.
Signed-off-by: Jouni Malinen <j@w1.fi>
It looks like the use of sm->wpa == WPA_VERSION_WPA2 in two locations
within the function was a bit too much for clang static analyzer to
understand. Use a separate variable for storing the allocated memory so
that it can be freed unconditionally. The kde variable can point to
either stack memory or temporary allocation, but that is now const
pointer to make the design clearer.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new ext_eapol_frame_io parameter can be used to configure hostapd
and wpa_supplicant to use control interface for receiving and
transmitting EAPOL frames. This makes it easier to implement automated
test cases for protocol testing. This functionality is included only in
CONFIG_TESTING_OPTIONS=y builds.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
A P2P Client may be able to connect to the GO even if the WPS
provisioning step has not terminated cleanly (e.g., P2P Client does not
send WSC_Done). Such group formation attempt missed the event
notification about started group on the GO and also did not set the
internal state corresponding to the successful group formation.
This commit addresses the missing part by completing GO side group
formation on a successful first data connection if WPS does not complete
cleanly. Also, this commit reorders the STA authorization indications to
ensure that the group formation success notification is given prior to
the first STA connection to handle such scenarios.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows cases where neither 80 MHz segment requires DFS to be
configured. DFS CAC operation itself does not yet support 80+80, though,
so if either segment requires DFS, the AP cannot be brought up.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds kek_len argument to aes_wrap() and aes_unwrap() functions and
allows AES to be initialized with 192 and 256 bit KEK in addition to
the previously supported 128 bit KEK.
The test vectors in test-aes.c are extended to cover all the test
vectors from RFC 3394.
Signed-off-by: Jouni Malinen <j@w1.fi>
_pmksa_cache_free_entry() is a static function that is never called with
entry == NULL, so there is no need to check for that.
Signed-off-by: Jouni Malinen <j@w1.fi>
If the first entry in the PMKSA cache did not match the station's MAC
address, an infinite loop could be reached in pmksa_cache_get_okc() when
trying to find a PMKSA cache entry for opportunistic key caching cases.
This would only happen if OKC is enabled (okc=1 included in the
configuration file).
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, WPA/WPA2 case ended up using the hardcoded
dot11RSNAConfigPMKLifetime (43200 seconds) for PMKSA cache entries
instead of using the Session-Timeout value from the RADIUS server (if
included in Access-Accept). Store a copy of the Session-Timeout value
and use it instead of the default value so that WPA/WPA2 cases get the
proper timeout similarly to non-WPA/WPA2 cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
In case P2P is not enabled the if (dev_addr) is always ignored as
dev_addr will be NULL. As this code is relevant only to P2P, it can be
moved to be the ifdef to avoid static analyzer warnings. (CID 72907)
Signed-off-by: Philippe De Swert <philippe.deswert@jollamobile.com>
This fixes couple of code paths where the WPA_DRIVER_FLAGS_DFS_OFFLOAD
flag was not checked properly and unexpected DFS operations were
initiated (and failed) in case the driver handles all these steps.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The driver-based SME case did not set STA flags properly to the kernel
in the way that hostapd-SME did in ieee802_11.c. This resulted in the FT
protocol case not marking the STA entry authorized. Fix that by handling
the special WLAN_AUTH_FT case in hostapd_notif_assoc() and also add the
forgotten hostapd_set_sta_flags() call to synchronize these flag to the
driver.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
While hostapd should not really receive the EVENT_ASSOC message for
IBSS, driver_nl80211.c could potentially generate that if something
external forces the interface into IBSS mode and the IBSS case does not
provide the struct assoc_info data. Avoid the potential NULL pointer
dereference by explicitly verifying for the event data to be present.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds hostapd support for the new WLAN-Pairwise-Cipher,
WLAN-Group-Cipher, WLAN-AKM-Suite, and WLAN-Group-Mgmt-Pairwise-Cipher
attributes defined in RFC 7268. These attributes are added to RADIUS
messages when the station negotiates use of WPA/RSN.
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds hostapd support for the new WLAN-HESSID attribute defined in
RFC 7268. This attribute contains the HESSID and it is added whenever
Interworking is enabled and HESSID is configured.
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds hostapd support for the new Mobility-Domain-Id attribute
defined in RFC 7268. This attribute contains the mobility domain id and
it is added whenever the station negotiates use of FT.
Signed-off-by: Jouni Malinen <j@w1.fi>
set_dfs_state() return value is not currently checked anywhere, so
remove the dead assignment to avoid static analyzer complaints.
Signed-off-by: Jouni Malinen <j@w1.fi>
Use an explicit memset call to clear any hostapd configuration parameter
that contains private information like keys or identity. This brings in
an additional layer of protection by reducing the length of time this
type of private data is kept in memory.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.
Signed-off-by: Jouni Malinen <j@w1.fi>
It's worth giving a try to fallback to re-starting BSSes at least once
hoping it works out instead of just leaving BSSes disabled.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Currently hostapd data structures aren't ready for multi-channel BSSes,
so make DFS work now at least with single-channel multi-BSS channel
switching.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
This was added by commit 8a45811638
('hostapd: Add Operating Mode Notification support'), but the validation
steps cannot be true either for the channel width (which is a two-bit
subfield that cannot encode more than the list four values) or Rx NSS
(which cannot encode a value larger 7). Furthermore, the VHT_CHANWIDTH_*
defines do not match the definition of the Channel Width subfield
values.
Since this check cannot ever match, it is better to remove it to make
the code easier to understand and to avoid getting complaints about dead
code from static analyzers.
Signed-off-by: Jouni Malinen <j@w1.fi>
Earlier commit related to MAC address based access control list
offloaded to the driver was not sending ACL configuration to the driver
if the MAC address list was empty. Remove this check as empty access
control list is a valid use case and sending ACL parameters should not
be dependent on whether the list is empty.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
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>
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>
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>
prev cannot be NULL here in the hostapd_eid_country_add() call since
prev is set whenever start becomes non-NULL. That seems to be a bit too
difficult for some static analyzers, so check the prev pointer
explicitly to avoid false warnings.
Signed-off-by: Jouni Malinen <j@w1.fi>
This fixes an issue where a driver using the deprecated set_ieee8021x()
callback did not include rsn_pairwise bits in the driver configuration
even if mixed WPA+WPA2 configuration was used. This could result, e.g.,
in CCMP not being enabled properly when wpa_pairwise=TKIP and
rsn_pairwise=CCMP was used in the configuration. Fix this by using
bitwise OR of the wpa_pairwise and rsn_pairwise values to allow the
driver to enable all pairwise ciphers.
In addition, make the newer set_ap() driver_ops use the same bitwise OR
design instead of picking between rsn_pairwise and wpa_pairwise. This
makes the code paths consistent and can also fix issues with mixed mode
configuration with set_ap().
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Move to PTKINITDONE state and mark PTK valid after successful completion
of FT protocol. This allows the AP/Authenticator to start GTK rekeying
when FT protocol is used. Previously, the station using FT protocol did
not get the new GTK which would break delivery of group addressed
frames.
Signed-off-by: Jouni Malinen <j@w1.fi>
Couple of code paths in hostapd.c could have left hapd->drv_priv
pointing to memory that was freed in driver_nl80211.c when a secondary
BSS interface is removed. This could result in use of freed memory and
segfault when the next driver operation (likely during interface
deinit/removal). Fix this by clearing hapd->drv_priv when there is
reason to believe that the old value is not valid within the driver
wrapper anymore.
Signed-off-by: Jouni Malinen <j@w1.fi>
These three calls were used already in three different paths. Use a
helper function to avoid adding even more copies of this.
Signed-off-by: Jouni Malinen <j@w1.fi>
If for some reason interface setup fails mid-way when setting up
multi-BSS AP it was possible to get segmentation fault because driver
was not properly cleaned up.
One possible trigger, when using nl80211 driver, was udev renaming an
interface created by hostapd causing, e.g., linux_set_iface_flags() to
fail.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
This variable is updated when calling hostapd_if_add(), so it makes
sense to do the same thing when calling hostapd_if_remove().
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Performing, e.g. `wpa_cli -p /var/run/hostapd raw DISABLE` twice led to
hostapd segmentation fault if multiple BSSes were configured. Fix this
by checking if there is anything to disable at all before trying.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
The current RADIUS server pointer was updated after each SET command
which broke parsing of multiple RADIUS servers over the control
interface. Fix this by doing the final RADIUS server pointer updates
only once the full configuration is available.
Signed-off-by: Jouni Malinen <j@w1.fi>
Instead of silently dropping the response that requires fragmentation,
send an error response to the station to make it aware that no full
response will be available.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, hostapd had to be started with at least one of the
configuration files enabling TNC for TNC to be usable. Change this to
allow TNC to be enabled when the first interface with TNC enabled gets
added during runtime.
Signed-off-by: Jouni Malinen <j@w1.fi>
Before starting a 20/40 MHz BSS on the 2.4 GHz band, a 40-MHz-capable HT
AP is required by the rules defined in IEEE Std 802.11-2012 10.15.5 to
examine the channels of the current operational regulatory domain to
determine whether the operation of a 20/40 MHz BSS might unfairly
interfere with the operation of existing 20 MHz BSSs. The AP (or some of
its associated HT STAs) is required to scan all of the channels of the
current regulatory domain in order to ascertain the operating channels
of any existing 20 MHz BSSs and 20/40 MHz BSSs. (IEEE 802.11-2012 S.5.2
Establishing a 20/40 MHz BSS).
Add the check for an overlapping 20 MHz BSS to the initial AP scan for
the P == OT_i case in 10.15.3.2.
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
If WPS isn't enabled, hostapd_cli returns 'OK' even though WPS doesn't
get activated because WPS context is not valid:
$ hostapd_cli wps_pbc
Selected interface 'wlan0'
OK
$ hostapd_cli wps_cancel
Selected interface 'wlan0'
OK
Fix this by returning appropriate error when WPS fails to activate:
$ hostapd_cli wps_pbc
Selected interface 'wlan0'
FAIL
$ hostapd_cli wps_cancel
Selected interface 'wlan0'
FAIL
Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
CC: Luka Perkov <luka.perkov@sartura.hr>
If a driver wrapper misbehaves and does not indicate a frame body in the
event, core hostapd code should handle this consistently since that case
was already checked for in one location.
Signed-off-by: Jouni Malinen <j@w1.fi>
sta == NULL check is already done above based on category !=
WLAN_ACTION_PUBLIC, but that seems to be too complex for some static
analyzers, so avoid invalid reports by explicitly checking for this
again in the WLAN_ACTION_FT case.
Signed-off-by: Jouni Malinen <j@w1.fi>
Checking sm->pmksa is sufficient here, but that seems to be too
difficult for static analyzers to follow, so avoid false reports by
explicitly checking pmkid as well.
Signed-off-by: Jouni Malinen <j@w1.fi>
clang scan-build does not seem to like the 'd' suffix on floating
constants and ends up reporting analyzer failures. Since this suffix
does not seem to be needed, get rid of it to clear such warnings.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes the initial OBSS scans in AP mode before starting 40 MHz BSS
more robust. In addition, HT20 can be used as a backup option if none of
the scans succeed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If a 2.4 GHz band AP receives a 20/40 Coexistence management frame from
a connected station with 20/40 BSS Intolerant Channel Report element
containing the channel list in which any legacy AP are detected or AP
with 40 MHz intolerant bit set in HT Cap IE is detected in the affected
range of the BSS, the BSS will be moved from 40 to 20 MHz channel width.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Extend the minimal HT 20/40 co-ex support to include dynamic changes
during the lifetime of the BSS. If any STA connects to a 2.4 GHz AP with
40 MHz intolerant bit set then the AP will switch to 20 MHz operating
mode.
If for a period of time specified by OBSS delay factor and OBSS scan
interval AP does not have any information about 40 MHz intolerant STAs,
the BSS is switched from HT20 to HT40 mode.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This provides information to allow the driver to be configured for
updated channel parameters, e.g., when dynamically changing HT20/HT40
bandwidth.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
With hidden SSID (ignore_broadcast_ssid), an IOS device trying to
connect to the AP will send a probe request with ANT == 2. If
interworking support is just compiled (not enabled), we will drop the
probe request since default ANT is 0.
Check that interworking is enabled before filtering based on ANT or
HESSID to match the behavior of code without CONFIG_INTERWORKING.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Sometimes function hostapd_is_dfs_required() returns -1 which indicates
that it was not possible to check if DFS was required. This happens for
channels from the 2.4 GHz band where DFS checking should not happen.
This can be fixed by returning DFS-not-required for mode different from
IEEE80211A and when DFS support is not available (ieee80211h not set).
Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
This makes the definitions match the terminology used in IEEE Std
802.11-2012 and makes it easier to understand how the HT Operation
element subfields are used.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This was used to fill in the "PSMP support" subfield that was defined
during P802.11n development. However, this subfield was marked reserved
in the published IEEE Std 802.11n-2009 and it is not supported by
current drivers that use hostapd for SME either. As such, there is not
much point in maintaining this field as ht_capab parameter within
hostapd either.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Now that WPS 2.0 support is enabled unconditionally, WEP and Shared auth
type are not allowed. This made some of the older code unused and that
can now be removed to clean up the implementation. There is still one
place where WEP is allowed for testing purposes: wpa_supplicant as
Registrar trying to configure an AP to use WEP. That is now only allowed
in CONFIG_TESTING_OPTIONS=y builds, though.
Signed-off-by: Jouni Malinen <j@w1.fi>
"user" MACACL "password" style lines in the eap_user file can now be
used to configured user entries for RADIUS-based MAC ACL.
Signed-off-by: Jouni Malinen <j@w1.fi>
p2p_dev_addr was not NULL, so the all zeros case was printed as well.
Clean this up by printing p2p_dev_addr in debug prints only if it is a
real P2P Device Address.
Signed-off-by: Jouni Malinen <j@w1.fi>
Add support of vendor command to hostapd ctrl_iface.
Vendor command's format:
VENDOR <vendor id> <sub command id> [<hex formatted data>]
The 3rd argument will be converted to binary data and then passed as
argument to the sub command.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
When primary and secondary channel were switched and config was
reloaded, secondary channel was incorrectly overwritten.
Proceed as for other settings that should not be changed and don't
allow to overwrite.
Signed-off-by: Pawel Kulakowski <pawel.kulakowski@tieto.com>
There is not much point in building devices with WPS 1.0 only supported
nowadays. As such, there is not sufficient justification for maintaining
extra complexity for the CONFIG_WPS2 build option either. Remove this by
enabling WSC 2.0 support unconditionally.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Especially when multiple BSSes are used with ACS, number of the error
paths were not cleaning up driver initialization properly. This could
result in using freed memory and crashing the process if ACS failed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If the PMK-R1 needs to be pulled for the R0KH, the previous
implementation ended up rejecting the over-the-air authentication and
over-the-DS action frame unnecessarily while waiting for the RRB
response. Improve this by postponing the Authentication/Action frame
response until the pull response is received.
Signed-off-by: Jouni Malinen <j@w1.fi>
The main WPS code rejects WEP parameters, so this code is not used and
can be commented out from WPS 2.0 builds. This is similar to the earlier
commit that commented out in-memory update.
Signed-off-by: Jouni Malinen <j@w1.fi>
If the driver supports full offloading of DFS operations, do not disable
a channel marked for radar detection. The driver will handle the needed
operations for such channels.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The main WPS code rejects WEP parameters, so this code is not used and
can be commented out from WPS 2.0 builds.
Signed-off-by: Jouni Malinen <j@w1.fi>
There was possibility that the current channel in Beacon information
element was incorrectly set. This problem was easily observed when
primary and secondary channel were switched and then some of hostapd
settings (for example password) were changed using WPS External
Registrar. This caused hostapd_reload_config() function overwrite the
current channel information from config file.
This patch prevents this situation and does not allow to overwrite
channel and some other settings when config is reloaded.
Signed-off-by: Pawel Kulakowski <pawel.kulakowski@tieto.com>
It was possible for hapd->wps_beacon_ie and hapd->wps_probe_resp_ie to
be set if WPS initialization in hostapd failed after having set these
parameters (e.g., during UPnP configuration). In addition, many of the
other WPS configuration parameters that were allocated during the first
part of the initialization were not properly freed on error paths.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
These were previous set to 3.0 and 1.5 ms which ended up using values 93
and 46 in 36 usec inits. However, the default values for these are
actually defined as 3.008 ms and 1.504 ms (94/47) and those values are
also listed in the hostapd.conf example.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The center segment0 calculation for VHT20 ACS was incorrect. This caused
ACS to fail with: "Could not set channel for kernel driver".
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Secondary channel was compared incorrectly (-4/4 vs. actual channel
number) which broke matching neighboring 40 MHz BSSes and only the
no-beacons-on-secondary-channel rule was applied in practice. Once
sec_chan was fixed, this triggered another issue in this function where
both rules to switch pri/sec channels could end up getting applied in a
way that effectively canceled the switch.
Signed-off-by: Jouni Malinen <j@w1.fi>
previous_ap and last_assoc_req were not really used for anything
meaninful, so get rid of them to reduce the size of per-STA memory
allocation.
Signed-off-by: Jouni Malinen <j@w1.fi>
It was possible for the control interface and some of the BSS setup to
be left partially initialized in failure cases while the BSS structures
were still freed. Fix this by properly cleaning up anything that may
have passed initialization successfully before freeing memory.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows hostapd to set a different management group cipher than the
previously hardcoded default BIP (AES-128-CMAC). The new configuration
file parameter group_mgmt_cipher can be set to BIP-GMAC-128,
BIP-GMAC-256, or BIP-CMAC-256 to select one of the ciphers defined in
IEEE Std 802.11ac-2013.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
For some client OBSS implementations that are performed in
firmware, all OBSS parameters need to be set to valid values.
Do this, as well as supplying the "20/40 Coex Mgmt Support"
flag in the extended capabilities IE.
Signed-hostap: Paul Stewart <pstew@chromium.org>
The 802.11ac amendment specifies that that the center segment 0 field
is reserved, so it should be zero. Hostapd previously required it to
be set, which is likely a good idea for interoperability, but allow it
to be unset. However, don't allow it to be set to a random value, only
allow zero and the correct channel.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Some of the remote ANQP server concepts were introduces into gas_serv.c,
but these were not completed. Remote the unused implementation for now.
It can be added back if support for remote ANQP server is added at some
point.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
hostapd DEAUTHENTICATE and DISASSOCIATE control interface commands
accepted both a test=<0/1> and reason=<val> parameters, but these were
not supported in the same command as a combination. Move the code around
a bit to allow that as well since it can be helpful for automated test
scripts.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, some of the last initialization steps could fail without
clearly marking the interface disabled. For example, configuring the
channel to the driver could fail, but hostapd would not clearly identify
as the interface not being in functional state apart from not moving it
to the ENABLED state. Send an AP-DISABLED event and mark interface state
DISABLED if such a setup operation fails.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
At least in nl80211, broadcast management frames like Probe Request
frames, may be processed multiple times per BSS if multi-BSS is active
and NL80211_CMD_FRAME event is used to deliver them. In the case of
Probe Request frames, hostapd will create multiple redundant Probe
Response frames which are problematic when many BSS are on one channel.
This problem is caused by driver_nl80211 generating an event for
wpa_supplicant_event() for each BSS, and hostapd_mgmt_rx() calls
ieee802_11_mgmt() for each BSS, too.
Fix this by processing broadcast events only for the BSS the driver
intended to. The behavior is not changed for drivers not setting a BSS.
Signed-hostap: Simon Wunderlich <simon@open-mesh.com>
If channels are "available", change to "usable" DFS channels as a
fallback, too. This requires CAC, but it is still better to do that
instead of stopping service completely.
Signed-hostap: Simon Wunderlich <sw@simonwunderlich.de>
If DFS channels are marked as "available", an AP can switch to them
immediately without performing CAC. Therefore, the channel selection
function should consider these channels even though these are radar
channels.
Signed-hostap: Simon Wunderlich <sw@simonwunderlich.de>
Different channels allow different transmission power, at least in ETSI
countries. Also, ETSI requires a "channel plan" for DFS operation, and
channels should be randomly choosen from these channels.
Add a channel list configuration option for users to add channels
hostapd may pick from.
Signed-hostap: Simon Wunderlich <sw@simonwunderlich.de>
Incorrect PTK length was used in PMK-to-PTK derivation and the Michael
MIC TX/RX key swapping code was incorrectly executed for these ciphers
on supplicant side.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If eap_user_file is configured to point to an SQLite database, RADIUS
server code can use that database for log information.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, this was enabled only at msgdump verbosity level, but any
level that is more verbose than it should also be included.
Signed-off-by: Jouni Malinen <j@w1.fi>
This reverts commit 4345fe963e. That
introduced number of memory leaks and since the rest of the VLAN changes
did not yet go in, it is easier to revert this for now and bring back
the changes after fixes if there is sufficient interest for them in the
future.
Signed-off-by: Jouni Malinen <j@w1.fi>
This extends the design already available for Access-Request packets to
the RADIUS server and Access-Accept messages. Each user entry can be
configured to add arbitrary RADIUS attributes.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Request the driver to send a Deauthentication frame before doing
any other disconnection steps on the session timeout path. This is
needed when PMF is negotiated for the association since the driver
will need to find the STA entry and the PTK for it to be able to
protect the robust Deauthentication frame.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
In case of Automatic Channel Selection (ACS) failure, we do not have a
real fallback path. Interface still remains in ACS state. To reflect we
did not succeed with ACS, simply disable the interface and indicate this
to user/upper layer entity so that a suitable recovery or error
notification can be performed.
Signed-off-by: Pawel Kulakowski <pawel.kulakowski@tieto.com>
handle_assoc_cb() got this addition, but the check in
hostapd_new_assoc_sta() was not modified to be aware of the OSEN special
case for EAPOL state machines to be used for marking a STA authorized.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This was done in handle_assoc_cb() in ieee802_11.c for drivers that use
hostapd SME/MLME. However, drivers that include SME/MLME implementation
do not use that function and the STA flag needs to be set when
processing the association notification. This is needed to get the STA
entry into showing the proper authorized state and to get the
AP-STA-CONNECTED/DISCONNECTED events on the control interface.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
As per IEEE Std 802.11ac-2013, 'Maximum A-MPDU Length Exponent' field
value is in the range of 0 to 7. Previous implementation assumed EXP0 to
be the maximum length (bits 23, 24 and 25 set) what is incorrect.
This patch adds options to set it up within the 0 to 7 range.
Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
For example, the previous implementation considered [44, 48, 52, 56] to
be a valid VHT80 channel -- which it is not. This resulted in, e.g.,
failure to start CAC when channels on overlapped segments included DFS
channels.
Add a check similar to the HT40 one to prevent that. The check is
performed this way as the ACS implementation assumes the primary channel
to be the first channel in a given segment.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Previously, we printed this message as a debug one, which was confusing
in case verbose debug messages were disabled. User could think CAC
started but never ended. Add more parameterss to DFS_EVENT_CAC_START, so
external programs can more easily check what was wrong in case of
errors.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
This commit adds an option to optimize AP teardown by leaving the
deletion of keys (including group keys) and stations to the driver.
This optimization option should be used if the driver supports stations
and keys removal when stopping an AP.
For example, the optimization option will always be used for cfg80211
drivers since cfg80211 shall always remove stations and keys when
stopping an AP (in order to support cases where the AP is disabled
without the knowledge of wpa_supplicant/hostapd).
Signed-off-by: Moshe Benji <moshe.benji@intel.com>
Previously, both this and combination of OUI_WFA and P2P_OUI_TYPE were
used. Using the full 32-bit value as a single operation saves a bit in
code size, so start moving towards using it more consistently when
writing or finding the P2P vendor specific element.
Signed-off-by: Rahul Jain <rahul.jain@samsung.com>
The following if statements set the new_op_mode value in all cases,
so there is no need to initialize this to 0 first. This removes a
static analyzer warning.
Signed-off-by: Jouni Malinen <j@w1.fi>
The pos variable was not used between its first and second assignment.
Clean this up by using the pos variables instead of the buf (start of
the buffer).
Signed-off-by: Jouni Malinen <j@w1.fi>
If hapd_iface->bss[i] == NULL, this could have resulted in NULL pointer
dereference in the debug print. Avoid this by skipping the message in
case of NULL pointer. In addition, clear iface->bss[i] to NULL for
additional robustness even though this array gets freed immediately.
Signed-off-by: Jouni Malinen <j@w1.fi>
This seemed to be fine on most code paths, but the code was complex
enough to make the analysis difficult (and a bit too much for static
analyzers). There is no harm in forcing these parameters to be
initialized, so do that to make sure they cannot be left uninitialized.
Signed-off-by: Jouni Malinen <j@w1.fi>
It looks like leaving behind the freed pointed at the end of the array
could end up in a crash triggered by double free in some cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new hostapd.conf parameter subscr_remediation_url can be used to
define the URL of the Subscription Remediation Server that will be added
in a WFA VSA to Access-Accept message if the SQLite user database
indicates that the user need subscription remediation.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
hostapd can now be configured to advertise OSU Providers with the
new osu_* confgiuration parameters.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
hostapd can now be configured to provide access for icon files
(hs20_icon config file parameter) for OSU. The hs20_icon data contains
additional meta data about the icon that is not yet used, but it will be
needed for the OSU Providers list ANQP element.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If the authentication server includes the WFA HS 2.0 Session Info URL
AVP in Access-Accept, schedule ESS Disassociation Imminent frame to be
transmitted specified warning time prior to session timeout.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If the RADIUS server includes deauthentication request in Access-Accept,
send a WNM-Notification frame to the station after 4-way handshake and
disconnect the station after configurable timeout.
A new control interface command, WNM_DEAUTH_REQ, is added for testing
purposes to allow the notification frame to sent based on local request.
This case does not disconnect the station automatically, i.e., a
separate control interface command would be needed for that.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If the RADIUS server includes the WFA RADIUS VSA in Access-Accept to
indicate need for subscription remediation, copy the server URL from
the message and send it to the station after successfully completed
4-way handshake (i.e., after PTK is set to allow PMF to work) in a
WNM-Notification.
AP must not allow PMKSA caching to be used after subscription
remediation association, so do not add the PMKSA cache entry whenever
the authentication server is indicating need for subscription
remediation. This allows station reassociation to use EAP authentication
to move to non-remediation connection.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
If the station indicated support for Hotspot 2.0, send its release
number and PPS MO ID in Access-Request messages using the WFA RADIUS
VSA.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The Access-Request frames are used to inform the RADIUS server about the
Hotspot 2.0 release number supported by the AP.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Subscription remediation notification can now be sent from hostapd with:
hostapd_cli hs20_wnm_notif 02:00:00:00:00:00 http://example.com/foo/
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The HS 2.0 Indication element from hostapd now includes the release
number field and the new ANQP Domain ID field. This ID can be configured
with anqp_domain_id parameter in hostapd.conf.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Allow mixed DFS and non-DFS channels, e.g., VHT160 on channels 36-64.
This is useful for testing VHT160 with mac80211_hwsim.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
The regulatory rules in Japan do not allow OFDM to be used on channel
14. While this was to some extend assumed to be enforced by drivers
(many of which apparently don't), it is safer to make hostapd enforce
this by disabling any OFDM-related functionality. This tries to avoid
backwards compatibility issues by downgrading the mode rather than
rejecting the invalid configuration.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Add configuration of Spectrum Management subfield in the Capability
Information of Beacon, Probe Response, and Association Response frames.
Spectrum Management bit is set when directly requested by new
configuration option spectrum_mgmt_required=1 or when AP is running on
DFS channels. In the future, also TPC shall require this bit to be set.
Signed-hostap: Srinivasan <srinivasanb@posedge.com>
Signed-hostap: Chaitanya T K <chaitanyatk@posedge.com>
Signed-hostap: Marek Puzyniak <marek.puzyniak@tieto.com>
Add Power Constraint information element to Beacon and Probe Response
frames when hostapd is configured on 5 GHz band and Country information
element is also added. According to IEEE Std 802.11-2012 a STA shall
determine a local maximum transmit power for the current channel based
on information derived from Country and Power Constraint elements.
In order to add Power Constraint element ieee80211d option need to be
enabled and new local_pwr_constraint config option need to be set to
unsigned value in units of decibels. For now this value is statically
configured but the future goal is to implement dynamic TPC algorithm
to control local power constraint.
Signed-hostap: Srinivasan <srinivasanb@posedge.com>
Signed-hostap: Chaitanya T K <chaitanyatk@posedge.com>
Signed-hostap: Marek Puzyniak <marek.puzyniak@tieto.com>
This allows NAS-IP-Address, NAS-Identifier, and NAS-IPv6-Address to be
included in the Disconnect-Request packets.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
When a station is disconnected based on Disconnect-Request, it is better
to force the station to go through full EAP authentication if it tries
to reconnect.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It is possible for an ER to send an unexpected PutWLANResponse action
when the destination STA is in disassociated, but not fully
deauthenticated state. sta->eapol_sm can be NULL in such state and as
such, it would be possible to hit a NULL pointer dereference in the
eapol_auth_eap_pending_cb() call at the end of the
hostapd_wps_probe_req_rx() when trying to proxy the WPS message to the
station. Fix this by validating that sta->eapol_sm is set before
processing the message.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
In function ieee802_1x_get_mib_sta(), eap_server_get_name() may return
NULL, and it could be dereferenced immidiately by os_snprintf() (if the
snprintf implementation does not handle NULL pointer).
Signed-hostap: Eytan Lifshitz <eytan.lifshitz@intel.com>
Initialize variables explicitly to avoid [-Wmaybeuninitialized] compiler
warning in hostapd_handle_dfs() and
hostapd_dfs_start_channel_switch_cac() functions.
Signed-hostap: Max Stepanov <Max.Stepanov@intel.com>
Confirm-before-commit validation step allowed execution to continue on
error case. This could result in segfault in sae_check_confirm() if the
temporary SAE data was not available (as it would not be, e.g., in case
of an extra SAE confirm message being received after successful
exchange). Fix this by stopping SAE processing immediately after
detecting unexpected state for confirm message. In addition, make the
public sae.c functions verify sae->tmp before dereferencing it to make
this type of bugs less likely to result in critical issues.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, unconfigured state was forcing the best supported
authentication and encryption state to be shown in WPS messages,
including AP Settings in M7 in case the AP acts as an Enrollee. This is
not really correct for the AP Settings case, so change that one to
indicate the currently configured state.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
It is possible for the driver to report Beacon RX prior to hostapd
having completed AP mode setup, e.g., when changing country code. Beacon
frame processing for OLBC was not prepared for this and could trigger
segfault due to NULL pointer dereference. Fix this by ignoring the
Beacon frames received prior to completing interface setup when
determining OLBC updates.
Signed-hostap: Jouni Malinen <j@w1.fi>
Before this patch, 1 second timeout was used for regulatory updates. In
some cases, specially when we reload driver modules on some slower
platforms this could take more than 1 second (about 2 seconds). This is
important specially for DFS case, where we have to have correct DFS
region before we will start CAC. In other case (unknown DFS region), CAC
will fail. 5 seconds should be enough for all cases.
Signed-hostap: Janusz Dziedzic <janusz.dziedzic@tieto.com>
1. In wpa_config_process_bgscan() fix memory leak after
calling wpa_config_parse_string()
2. In hostapd_config_defaults(), on failure to allocate bss->radius,
conf->bss was not freed.
3. In p2p_deauth_nofif(), memory allocated in p2p_parse_ies() was not
freed in case of NULL minor_reason_code.
4. In p2p_disassoc_nofif(), memory allocated in p2p_parse_ies() was
not freed in case of NULL minor_reason_code.
5. In p2p_process_go_neg_conf(), memory allocated was not freed in
case that the P2P Device interface was not waiting for a
GO Negotiation Confirm.
6. In wpa_set_pkcs11_engine_and_module_path(), the wrong pointer was
checked.
Signed-hostap: Eytan Lifshitz <eytan.lifshitz@intel.com>
This new mechanism allows P2P Client to request an IPv4 address from the
GO as part of the 4-way handshake to avoid use of DHCP exchange after
4-way handshake. If the new mechanism is used, the assigned IP address
is shown in the P2P-GROUP-STARTED event on the client side with
following new parameters: ip_addr, ip_mask, go_ip_addr. The assigned IP
address is included in the AP-STA-CONNECTED event on the GO side as a
new ip_addr parameter. The IP address is valid for the duration of the
association.
The IP address pool for this new mechanism is configured as global
wpa_supplicant configuration file parameters ip_addr_go, ip_addr_mask,
ip_addr_star, ip_addr_end. For example:
ip_addr_go=192.168.42.1
ip_addr_mask=255.255.255.0
ip_addr_start=192.168.42.2
ip_addr_end=192.168.42.100
DHCP mechanism is expected to be enabled at the same time to support P2P
Devices that do not use the new mechanism. The easiest way of managing
the IP addresses is by splitting the IP address range into two parts and
assign a separate range for wpa_supplicant and DHCP server.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The contents of the WPS connection handover select message was modified
to include the Registrar public key hash instead of the credential.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
The new NFC connection handover design requires the AP/Registrar to
process the connection handover request message received from the
Enrollee. Add control interface commands for handling this.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
When GAS is used with PMF negotiated, Protected Dual of Public Action
frames are expected to be used instead of Public Action frames, i.e.,
the GAS/ANQP frames are expected to be encrypted. Add support for this
different category of Action frames being used for GAS. The payload
after the Category field is identical, so the only change is in using
the Category field based on what was received in the request frames. For
backwards compatibility, do not enforce protected dual to be used on the
AP side, i.e., follow what the station does.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Due to misplaced parenthesis, unprotected not-Robust Action frames
(e.g., Public Action frames) were dropped in handle_assoc() when such
frames were received during an association that had negotiated use of
PMF. This is not correct since only unprotected Robust Action frames
were supposed to be handled in this way.
This would have broken any Public Action frame use during PMF
association, but such frames were not really supposed to be used
currently (ANQP as the only possible use case should really use
protected dual option in such case).
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
While iterating over the stations hostapd_ctrl_iface_sta_mib()
might be called with sta == NULL. Fix this.
Signed-hostap: Ilan Peer <ilan.peer@intel.com>
It is possible for the configuration to be temporarily invalid when
adding a new AP through SET commands followed by ENABLE. Avoid this
issue by using less strict validation on SET commands and perform full
configuration validation only on ENABLE. Use cases with configuration
file maintain their previous behavior, i.e., full validation after the
file has been read.
Signed-hostap: Jouni Malinen <j@w1.fi>
This is just like the same command in wpa_supplicant, i.e., "hostapd_cli
status driver" can be used to fetch information about the driver status
and capabilities.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit e2f5a9889a was supposed to prevent
new scan request from pushing out the old one. However, it did not
really do that since eloop_deplete_timeout() returned 0 both for the
case where the old timeout existed (and was sooner) and if the old
timeout did not exist. It returned 1 only for the case where an old
timeout did exist and was larger than the new requested value. That case
used to result in wpa_supplicant_req_scan() rescheduling the timeout,
but hew code in eloop_deplete_timeout() did the exact same thing and as
such, did not really change anything apart from the debug log message.
Extend the eloop_deplete_timeout() (and eloop_replenish_timeout() for
that matter since it is very similar) to return three different values
based on whether the timeout existed or not and if yes, whether it was
modified. This allows wpa_supplicant_req_scan() to schedule a new
timeout only in the case there was no old timeout.
Signed-hostap: Jouni Malinen <j@w1.fi>
This debugging mechanism has now been deprecated by the control
interface commands that can be used to fetch same internal information
from hostapd in a more convenient way. Leave the empty USR1 signal
handler and configuration file parameter for backwards compatibility.
They can be removed in future versions of hostapd.
Signed-hostap: Jouni Malinen <j@w1.fi>
The per-STA/Supplicant state information from the EAPOL authenticator
is now available through "STA <MAC Address> eapol" command.
Signed-hostap: Jouni Malinen <j@w1.fi>
This adds TX/RX statistics and information about association into the
per-STA data that is available through the hostapd control interface. In
addition, information about the EAP method is now included with the IEEE
802.1X data.
Signed-hostap: Jouni Malinen <j@w1.fi>
intval is marked le16 and should be used through proper byte order
conversion functions even if it ended up getting set correctly due to
the two operations cancelling each other.
Signed-hostap: Jouni Malinen <j@w1.fi>
These were somewhat more hidden to avoid direct use, but there are now
numerous places where these are needed and more justification to make
the extern int declarations available from wpa_debug.h. In addition,
this avoids some warnings from sparse.
Signed-hostap: Jouni Malinen <j@w1.fi>
This driver event was used separately for some Action frames, but all
the driver wrappers converted to this from information that would have
been enough to indicate an EVENT_RX_MGMT event. In addition, the
received event was then converted back to a full IEEE 802.11 management
frame for processing in most cases. This is unnecessary complexity, so
get rid of the extra path and use EVENT_RX_MGMT for Action frames as
well as other management frame subtypes.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit 88b32a99d3 added support for using
some Action frame processing in hostapd for drivers that handle most of
SME/MLME internally (it added FT, this has since be extended for SA
Query and WNM). However, this was added in a way that ended up getting
both the hostapd_rx_action() and hostapd_action_rx() called for Action
frames. This could result in an attempt to process FT, SA Query, and WNM
Action frames twice.
There is need for more significant cleanup in Action frame processing in
hostapd depending on the driver type, but as a simple step to avoid
issues, skip the hostapd_action_rx() call if hostapd_rx_action()
processed the frame.
Signed-hostap: Jouni Malinen <j@w1.fi>
Even though this is a short timeout, it is at least theoretically
possible for the interface to be removed while waiting for
reconfiguration to start. Avoid issues with this by cancelling the
timeout on any WPS interface deinit. In theory, this should be postponed
until interface removal, but that does not fit very nicely to the
current wps_hostapd.c style.
Signed-hostap: Jouni Malinen <j@w1.fi>
It was already possible to configure hostapd and wpa_supplicant to use
FT-SAE for the key management, but number of places were missing proper
AKM checks to allow FT to be used with the new AKM.
Signed-hostap: Jouni Malinen <j@w1.fi>
Action frame RX report through EVENT_RX_ACTION did not indicate whether
the frame was protected or not even though that information is available
in mlme_event_mgmt(). hostapd_rx_action() has a workaround for setting
the protected flag for SA Query frames, but that did not apply for other
frames, like FT Action. This broke FT-over-DS when PMF is enabled with
newer kernel versions (i.e., the ones that do not use monitor interface
for receiving management frames).
Signed-hostap: Jouni Malinen <j@w1.fi>
