When a single hostapd process manages both the OWE and open BSS for
transition mode, owe_transition_ifname can be used to clone the
transition mode information (i.e., BSSID/SSID) automatically. When both
BSSs use ACS, the completion of ACS on the 1st BSS sets state to
HAPD_IFACE_ENABLED and the OWE transition mode information is updated
for all the other BSSs. However, the 2nd BSS is still in the ACS phase
and the beacon update messes up the state for AP startup and prevents
proper ACS competion.
If 2nd BSS is not yet enabled (e.g., in ACS), skip beacon update and
defer OWE transition information cloning until the BSS is enabled.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Verify that all associated STAs that claim support for OCV initiate an
SA Query after CSA. If no SA Query is seen within 15 seconds,
deauthenticate the STA.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This allows nl80211-based drivers to get the frame out. The old earlier
location resulted in the driver operation getting rejected before the
kernel was not ready to transmit the frame in the BSS context of the AP
interface that has not yet been started.
While getting this broadcast Deauthentication frame transmitted at the
BSS start is not critical, it is one more chance of getting any
previously associated station notified of their previous association not
being valid anymore had they missed previous notifications in cases
where the AP is stopped and restarted.
Signed-off-by: Jouni Malinen <j@w1.fi>
cfg80211 takes care of key removal when link/association is lost, so
there is no need to explicitly clear old keys when starting AP.
Signed-off-by: Jouni Malinen <j@w1.fi>
Clean struct hapd_interfaces pointers and interface count during
deinitialization at the end of theh ostapd process termination so that a
call to hostapd_for_each_interface() after this does not end up
dereferencing freed memory. Such cases do not exist before this commit,
but can be added after this, e.g., for DPP needs.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
hostapd_broadcast_wep_set() can be called without a WEP key set.
Don't try to install a default key in that case.
This patch is not critical for the new API. With key_flag we just would
report an (ignored) error and do nothing. With the patch we simply do
nothing.
Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
WEP should not be used for anything anymore. As a step towards removing
it completely, move all WEP related functionality to be within
CONFIG_WEP blocks. This will be included in builds only if CONFIG_WEP=y
is explicitly set in build configuration.
Signed-off-by: Jouni Malinen <j@w1.fi>
Hardcoded CONFIG_IEEE80211N to be included to clean up implementation.
More or less all new devices support IEEE 802.11n (HT) and there is not
much need for being able to remove that functionality from the build.
Included this unconditionally to get rid of one more build options and
to keep things simpler.
Signed-off-by: Jouni Malinen <j@w1.fi>
Add the new set_key() parameter "key_flag" to provide more specific
description of what type of a key is being configured. This is needed to
be able to add support for "Extended Key ID for Individually Addressed
Frames" from IEEE Std 802.11-2016. In addition, this may be used to
replace the set_tx boolean eventually once all the driver wrappers have
moved to using the new key_flag.
The following flag are defined:
KEY_FLAG_MODIFY
Set when an already installed key must be updated.
So far the only use-case is changing RX/TX status of installed
keys. Must not be set when deleting a key.
KEY_FLAG_DEFAULT
Set when the key is also a default key. Must not be set when
deleting a key. (This is the replacement for set_tx.)
KEY_FLAG_RX
The key is valid for RX. Must not be set when deleting a key.
KEY_FLAG_TX
The key is valid for TX. Must not be set when deleting a key.
KEY_FLAG_GROUP
The key is a broadcast or group key.
KEY_FLAG_PAIRWISE
The key is a pairwise key.
KEY_FLAG_PMK
The key is a Pairwise Master Key (PMK).
Predefined and needed flag combinations so far are:
KEY_FLAG_GROUP_RX_TX
WEP key not used as default key (yet).
KEY_FLAG_GROUP_RX_TX_DEFAULT
Default WEP or WPA-NONE key.
KEY_FLAG_GROUP_RX
GTK key valid for RX only.
KEY_FLAG_GROUP_TX_DEFAULT
GTK key valid for TX only, immediately taking over TX.
KEY_FLAG_PAIRWISE_RX_TX
Pairwise key immediately becoming the active pairwise key.
KEY_FLAG_PAIRWISE_RX
Pairwise key not yet valid for TX. (Only usable with Extended Key ID
support.)
KEY_FLAG_PAIRWISE_RX_TX_MODIFY
Enable TX for a pairwise key installed with KEY_FLAG_PAIRWISE_RX.
KEY_FLAG_RX_TX
Not a valid standalone key type and can only used in combination
with other flags to mark a key for RX/TX.
This commit is not changing any functionality. It just adds the new
key_flag to all hostapd/wpa_supplicant set_key() functions without using
it, yet.
Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
This is in preparation for adding support to use a single WLAN netdev
with VLAN operations offloaded to the driver. No functional changes are
included in this commit.
Signed-off-by: Gurumoorthi Gnanasambandhan <gguru@codeaurora.org>
These are certainly not error conditions, but normal cases for starting
up. Drop the message from ERROR to DEBUG.
Signed-off-by: Jouni Malinen <j@w1.fi>
This can be used in the future to implement support for RNR and scanning
extensions using a shorter field for the SSID.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Use op_class to derive channel width for the operating channel when
op_class is configured by the user in both fixed channel and ACS cases.
We can avoid using ht_capab field to derive channel width especially in
the 6 GHz band in which only HE is supported.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Using the channel parameter for validating allowed channel combinations
is not scalable to add 6 GHz support in the future since channel numbers
are duplicated between 2.4 GHz / 5 GHz bands and 6 GHz band. Hence use
frequency field for all channel combination validation steps done before
starting AP.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Using channel field while starting AP will cause issues with the new
6GHz band as the channel numbers are duplicated between the different
bands. Populate iface->freq before starting AP so that it can be used
instead of the channel number for all validations that need to be done
while starting AP.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
IEEE Std 802.11F-2003 was withdrawn in 2006 and as such it has not been
maintained nor is there any expectation of the withdrawn trial-use
recommended practice to be maintained in the future. Furthermore,
implementation of IAPP in hostapd was not complete, i.e., only parts of
the recommended practice were included. The main item of some real use
long time ago was the Layer 2 Update frame to update bridges when a STA
roams within an ESS, but that functionality has, in practice, been moved
to kernel drivers to provide better integration with the networking
stack.
Signed-off-by: Jouni Malinen <j@w1.fi>
Hardcode this to be defined and remove the separate build options for
PMF since this functionality is needed with large number of newer
protocol extensions and is also something that should be enabled in all
WPA2/WPA3 networks.
Signed-off-by: Jouni Malinen <j@w1.fi>
Add an SQLite table for defining per station MAC address version of
radius_auth_req_attr/radius_acct_req_attr information. Create the
necessary table and index where this doesn't exist. Select attributes
from the table keyed by station MAC address and request type (auth or
acct), parse and apply to a RADIUS message.
Add radius_req_attr_sqlite hostapd config option for SQLite database
file. Open/close RADIUS attribute database for a lifetime of a BSS and
invoke functions to add extra attributes during RADIUS auth and
accounting request generation.
Signed-off-by: Terry Burton <tez@terryburton.co.uk>
The HE capabilities are no longer per PHY but per iftype on this
specific PHY. It is therefore no longer enough to just parse the AP
capabilities.
The he_capabilities are now duplicated to store all information for
IEEE80211_MODE_* which hostap cares about. The nl80211 driver fills in
this information when the iftype supports HE. The rest of the code still
only uses the IEEE80211_HE_AP portion but can be extended later to also
use other HE capabilities.
Signed-off-by: Sven Eckelmann <seckelmann@datto.com>
These are used for both VHT and HE, so remove the misleading prefix.
Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
Bandwidth is used for both VHT and HE here.
Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
The bandwidth values are shared between VHT and HE mode so remove the
VHT specific prefix.
Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
This adds support to hostapd for configuring airtime policy settings for
stations as they connect to the access point. This is the userspace
component of the airtime policy enforcement system PoliFi described in
this paper: https://arxiv.org/abs/1902.03439
The Linux kernel part has been merged into mac80211 for the 5.1 dev
cycle.
The configuration mechanism has three modes: Static, dynamic and limit.
In static mode, weights can be set in the configuration file for
individual MAC addresses, which will be applied when the configured
stations connect.
In dynamic mode, weights are instead set per BSS, which will be scaled
by the number of active stations on that BSS, achieving the desired
aggregate weighing between the configured BSSes. Limit mode works like
dynamic mode, except that any BSS *not* marked as 'limited' is allowed
to exceed its configured share if a per-station fairness share would
assign more airtime to that BSS. See the paper for details on these
modes.
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
driver->hapd_deinit() is going to free the memory that the cached
pointers are pointing to, so clear the pointers to avoid possibility of
dereferencing used memory. It seemed to be possible to hit a code path
using those fields by issuing a CHAN_SWITCH command on disabled hostapd
interface in some cases.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
beacon_set_done did not get reset to zero on disabling interface using
DISABLE control interface command and the subsequent ENABLE command will
caused configuration of Beacon/Probe Response/Association Response frame
IEs twice. The unnecessary two step configuration can be avoided by
resetting beacon_set_done on DISABLE so that ENABLE can bring up the
interface in a single step with fully updated IEs.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
hostapd configuration parameters fragm_threshold and rts_threshold were
documented to disable the threshold with value -1 and not change driver
configuration if the parameter is not included. However, -1 was mapped
into not changing the driver value, so the explicit disabling part did
not work.
Replace the default values for these to be -2 so that explicitly set
configuration value -1 can be distinguished from the case of not
including the parameter. Map the -1 value to a driver request to disable
the threshold. Ignore any error from this operation just in case to
avoid breaking functionality should some drivers not accept the (u32) -1
value as a threshold value request to disable the mechanism.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This allows better control of processing new SAE sessions so that other
operations can be given higher priority during bursts of SAE requests,
e.g., during a potential DoS attack. The receive commit messages are
queued (up to maximum of 15 entries) and processed from eloop callback.
If the queue has multiple pending entries, more wait time is used to go
through the each new entry to reduce heavy CPU load from SAE processing.
Enable anti-clogging token use also based on the pending commit message
queue and not only based on the already started sessions.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Avoid an unnecessary unsigned integer overflow warning due to loop index
j-- use.
hostapd.c:661:10: runtime error: unsigned integer overflow: 0 - 1 cannot be represented in type 'unsigned int'
Signed-off-by: Jouni Malinen <j@w1.fi>
Split the check and decrementation into separate steps to avoid an
unnecessary UBSan warning.
hostapd.c:1895:14: runtime error: unsigned integer overflow: 0 - 1 cannot be represented in type 'size_t' (aka 'unsigned long')
Signed-off-by: Jouni Malinen <j@w1.fi>
hapd->conf might be NULL in case initialized failed, so better be
prepared for that when debug printing interface name in the deinit path.
hostapd.c:312:54: runtime error: member access within null pointer of type 'struct hostapd_bss_config'
hostapd.c:351:29: runtime error: member access within null pointer of type 'struct hostapd_bss_config'
hostapd.c:2158:18: runtime error: member access within null pointer of type 'struct hostapd_bss_config'
Signed-off-by: Jouni Malinen <j@w1.fi>
iface->num_bss is unsigned integer, so need to explicit typecast it to
unsigned before decrementation by one even when the result is stored in
an unsigned integer.
../src/ap/hostapd.c:2185:26: runtime error: unsigned integer overflow: 0 - 1 cannot be represented in type 'unsigned long'
Signed-off-by: Jouni Malinen <j@w1.fi>
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>
BSS additional/removal cases were not considered at all in the previous
implementation of hostapd configuration file reloading on SIGHUP. Such
changes resulted in num_bss values getting out of sync in runtime data
and configuration data and likely dereferencing of freed memory (e.g.,
when removing a BSS).
Fix this by forcing a full disable/enable sequence for the interface if
any BSS entry is added/removed or if an interface name changes between
the old and the new configuration.
Signed-off-by: Jouni Malinen <j@w1.fi>
Previously, when an AP interface was disabled through a control
interface DISABLE command during a channel switch window, the interface
could not be reenabled due to beacon setup failure (which validates if
CSA is in progress).
Fix this by clearing channel switch parameters while disabling the
hostapd interface.
Signed-off-by: Sriram R <srirrama@codeaurora.org>
This allows WEP mode AP to be re-enabled automatically after external
ifconfig down + up on netdev used by hostapd.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
When removing an interface, hostapd_bss_deinit() frees all associated
STAs. If any of the stations is 40MHz intolerant, the cleanup invokes
ht40_intolerant_remove(), that in turn registers a 20->40MHz transition
timer for the last station (ap_ht2040_timeout() function). That timer is
never canceled; once it executes, the interface is gone, most likely
resulting in a segfault when referencing it.
While hostapd_interface_deinit() cancels the transition timer, it does
so before cleaning up STAs. Move the cancellation after STA cleanup to
cancel any timer that was registered during that operation.
Signed-off-by: Martin Willi <martin@strongswan.org>
Previously, hostapd CHAN_SWITCH command did not effect VHT configuration
for the following:
When VHT is currently disabled (ieee80211ac=0),
1. hostapd_cli -p /var/run/hostapd chan_switch 10 5180 \
sec_channel_offset=1 center_freq1=5190 bandwidth=40 ht
====> Comes up in HT40
2. hostapd_cli -p /var/run/hostapd chan_switch 10 5765 \
sec_channel_offset=-1 center_freq1=5775 bandwidth=40 vht
====> Comes up in HT40
3. hostapd_cli -p /var/run/hostapd chan_switch 10 5200 center_freq1=5200 \
bandwidth=20 vht
====> Comes up in HT20
When VHT is currently enabled (ieee80211ac=1),
1. hostapd_cli -p /var/run/hostapd chan_switch 10 5180 \
sec_channel_offset=1 center_freq1=5190 bandwidth=40 ht
====> Comes up in VHT40
2. hostapd_cli -p /var/run/hostapd chan_switch 10 5200 center_freq1=5200 \
bandwidth=20 ht
====> Comes up in VHT20
This is since VHT config from chan_switch is processed only for
bandwidths 80 and above (80P80, 160) and for VHT20, VHT40 cases, only
NLA chan type and chan width are updated.
There is no NL attribute for determining if it is HT or VHT for
bandwidths 20 & 40 and currently they are updated as HT20, HT40 (+ or -
depending on offset). Same is notified back via
NL80211_CMD_CH_SWITCH_NOTIFY.
Instead of adding new NL attribute for tracking HT/VHT enabled config,
we are adding new hostapd VHT config parameter to save the chan_switch
config and use only for chan_switch case of VHT20 and VHT40.
Tested with all combinations of chan_switch (noHT->20->40->80->) HT/VHT
and confirmed to be working.
Signed-off-by: Sathishkumar Muruganandam <murugana@codeaurora.org>
Extend RADIUS DAS to support CoA-Request packets for the case where the
HS 2.0 Terms And Conditions filtering VSA is used to remove filtering.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
When AP initialization is completed in a callback (e.g., OBSS scan),
wpa_supplicant_deinit_ap() is not called in case of failure. Fix this by
calling setup_complete_cb in case of failure, too, which in turn calls
wpa_supplicant_deinit_ap() if needed.
Signed-off-by: Tova Mussai <tova.mussai@intel.com>
If there is no explicit wmm_enabled parameter in the configuration
(i.e., conf->wmm_enabled == -1), the configuration reload path needs to
initialize conf->wmm_enabled based on iconf->ieee80211n in
hostapd_reload_bss() similarly to what is done in the initial startup
case in hostapd_setup_bss().
This fixes issues with RSN capabilities being set incorrectly when WMM
is supposed to get enabled and unexpectedly enabling WMM when it is not
supposed to be enabled (HT disabled). Either of these issues could show
up when asking hostapd to reload the configuration file (and when that
file does not set wmm_enabled explicitly).
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
The previous implementation ended up starting a new EAPOL-Key 4-way
handshake if the STA were to attempt to perform another association.
This resulted in immediate disconnection since the PTK was not ready for
configuring FILS TK at the point when EAPOL-Key msg 1/4 is sent out.
This is better than alloing the association to continue with the same TK
reconfigured, but not really ideal.
Address this potential sequence by not starting a new 4-way handshake on
the additional association attempt. Instead, allow the association to
complete, but do so without reconfiguring the TK to avoid potential
issues with PN reuse with the same TK.
Signed-off-by: Jouni Malinen <j@w1.fi>
