Commit Graph

56 Commits

Author SHA1 Message Date
Hauke Mehrtens
4c3fae4adc hostapd: Add WPA-EAP-SUITE-B-192 (WPA3-Enterprise)
This adds support for the WPA3-Enterprise mode authentication.

The settings for the WPA3-Enterpriese mode are defined in
WPA3_Specification_v1.0.pdf. This mode also requires ieee80211w and
guarantees at least 192 bit of security.

This does not increase the ipkg size by a significant size.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-10-14 13:57:15 +02:00
Hauke Mehrtens
18c6c93a3b hostapd: Activate Opportunistic Wireless Encryption (OWE)
OWE is defined in RFC 8110 and provides encryption and forward security
for open networks.

This is based on the requirements in the Wifi alliance document
Opportunistic_Wireless_Encryption_Specification_v1.0_0.pdf
The wifi alliance requires ieee80211w for the OWE mode.
This also makes it possible to configure the OWE transission mode which
allows it operate an open and an OWE BSSID in parallel and the client
should only show one network.

This increases the ipkg size by 5.800 Bytes.
Old: 402.541 Bytes
New: 408.341 Bytes

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-10-14 13:57:15 +02:00
Hauke Mehrtens
4a009a16d2 hostapd: Activate Simultaneous Authentication of Equals (SAE)
This build the full openssl and wolfssl versions with SAE support which
is the main part of WPA3 PSK.

This needs elliptic curve cryptography which is only provided by these
two external cryptographic libraries and not by the internal
implementation.

The WPA3_Specification_v1.0.pdf file says that in SAE only mode
Protected Management Frames (PMF) is required, in mixed mode with
WPA2-PSK PMF should be required for clients using SAE, and optional for
clients using WPA2-PSK. The defaults are set now accordingly.

This increases the ipkg size by 8.515 Bytes.
Old: 394.026 Bytes
New: 402.541 Bytes

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-10-14 13:57:15 +02:00
Daniel Golle
69f544937f hostapd: update to git HEAD of 2018-05-21, allow build against wolfssl
Support for building wpa_supplicant/hostapd against wolfssl has been
added upstream recently, add build option to allow users using it.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2018-05-24 22:21:10 +02:00
Gospod Nassa
3cc56a5534 hostapd: fix IEEE 802.11r (fast roaming) defaults
Use ft_psk_generate_local=1 by default, as it makes everything else fairly
trivial. All of the r0kh/r1kh and key management stuff goes away and hostapd
fairly much does it all	for us.

We do need to provide nas_identifier, which can	be derived from	the BSSID,
and we need to generate	a mobility_domain, for which we	default	to the first
four chars of the md5sum of the	SSID.

The complex manual setup should also still work, but the defaults also
now work easily out of the box. Verified by manually running hostapd
(with the autogenerated config) and watching the debug output:

wlan2: STA ac:37:43:a0:a6:ae WPA: FT authentication already completed - do not start 4-way handshake

 This was previous submitted to LEDE in
 https://github.com/lede-project/source/pull/1382

[dwmw2: Rewrote commit message]
Signed-off-by: Gospod Nassa <devianca@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2018-05-18 11:19:00 +02:00
Daniel Golle
6e0fa4a76d hostapd: fix mesh+AP
Fix encrypted (or DFS) AP+MESH interface combination in a way similar
to how it's done for AP+STA and fix netifd shell script.
Refresh patches while at it.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2018-05-14 09:48:58 +02:00
Nick Hainke
0a7657c300 hostapd: add channel utilization as config option
Add the channel utilization as hostapd configuration option.

Signed-off-by: Nick Hainke <vincent@systemli.org>
2018-05-07 10:44:09 +02:00
Daniel Golle
a4322eba2b hostapd: fix encrypted mesh channel settings
Import two patches from Peter Oh to allow setting channel
bandwidth in the way it already works for managed interfaces.
This fixes mesh interfaces on 802.11ac devices always coming up in
VHT80 mode.

Add a patch to allow HT40 also on 2.4GHz if noscan option is set, which
also skips secondary channel scan just like noscan works in AP mode.

This time also make sure to add all files to the patch before
committing it...

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2018-04-20 16:00:01 +02:00
Felix Fietkau
1a89547957 Revert "hostapd: fix encrypted mesh channel settings"
This reverts commit 7f52919a2f, which is
currently breaking the builds and needs to be reworked

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-04-20 10:36:42 +02:00
Daniel Golle
7f52919a2f hostapd: fix encrypted mesh channel settings
Import two patches from Peter Oh to allow setting channel
bandwidth in the way it already works for managed interfaces.
This fixes mesh interfaces on 802.11ac devices always coming up in
VHT80 mode.

Add a patch to allow HT40 also on 2.4GHz if noscan option is set, which
also skips secondary channel scan just like noscan works in AP mode.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2018-04-20 07:52:19 +02:00
Daniel Golle
ff8df2b3f9 hostapd: mesh: make forwarding configurable
For unencrypted mesh networks our scripts take care of setting
the various mesh_param values. wpa_supplicant changes somes of them
when being used for SAE encrypted mesh and previously didn't allow
configuring any of them. Add support for setting mesh_fwding (which
has to be set to 0 when using other routing protocols on top of
802.11s) and update our script to pass the value to wpa_supplicant.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2018-04-18 22:12:18 +02:00
Daniel Golle
eba3b028e4 hostapd: update to git snapshot of 2018-03-26
The following patches were merged upstream:
000-hostapd-Avoid-key-reinstallation-in-FT-handshake.patch
 replaced by commit 0e3bd7ac6
001-Prevent-reinstallation-of-an-already-in-use-group-ke.patch
 replaced by commit cb5132bb3
002-Extend-protection-of-GTK-IGTK-reinstallation-of-WNM-.patch
 replaced by commit 87e2db16b
003-Prevent-installation-of-an-all-zero-TK.patch
 replaced by commit 53bb18cc8
004-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch
 replaced by commit 0adc9b28b
005-TDLS-Reject-TPK-TK-reconfiguration.patch
 replaced by commit ff89af96e
006-WNM-Ignore-WNM-Sleep-Mode-Response-without-pending-r.patch
 replaced by commit adae51f8b
007-FT-Do-not-allow-multiple-Reassociation-Response-fram.patch
 replaced by commit 2a9c5217b
008-WPA-Extra-defense-against-PTK-reinstalls-in-4-way-ha.patch
 replaced by commit a00e946c1
009-Clear-PMK-length-and-check-for-this-when-deriving-PT.patch
 replaced by commit b488a1294
010-Optional-AP-side-workaround-for-key-reinstallation-a.patch
 replaced by commit 6f234c1e2
011-Additional-consistentcy-checks-for-PTK-component-len.patch
 replaced by commit a6ea66530
012-Clear-BSSID-information-in-supplicant-state-machine-.patch
 replaced by commit c0fe5f125
013-WNM-Ignore-WNM-Sleep-Mode-Request-in-wnm_sleep_mode-.patch
 replaced by commit 114f2830d

Some patches had to be modified to work with changed upstream source:
380-disable_ctrl_iface_mib.patch (adding more ifdef'ery)
plus some minor knits needed for other patches to apply which are not
worth being explicitely listed here.

For SAE key management in mesh mode, use the newly introduce
sae_password parameter instead of the psk parameter to also support
SAE keys which would fail the checks applied on the psk field (ie.
length and such). This fixes compatibility issues for users migrating
from authsae.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2018-03-27 19:25:32 +02:00
Lorenzo Santina
83b4fa9b3b hostapd: add IEEE 802.11v support
Add Wireless Network Management (IEEE 802.11v)
support to:
- hostapd-full
- wpa_supplicant-full

It must be enabled at runtime via UCI with:
- option ieee80211v '1'

Add UCI support for:
- time_advertisement
- time_zone
- wnm_sleep_mode
- bss_transition

Signed-off-by: Lorenzo Santina <lorenzo.santina@edu.unito.it>
2018-02-21 19:28:50 +01:00
Stephan Brunner
285791934b hostapd: add support for hostapd's radius_client_addr
Add support for hostapd's radius_client_addr in order to
force hostapd to send RADIUS packets from the correct source
interface rather than letting linux select the most appropriate.

Signed-off-by: Stephan Brunner <s.brunner@stephan-brunner.net>
2018-01-27 16:46:45 +01:00
Jo-Philipp Wich
8a57531855 hostapd: set group_mgmt_cipher when ieee80211w is enabled
In order to properly support 802.11w, hostapd needs to advertise a group
management cipher when negotiating associations.

Introduce a new per-wifi-iface option "ieee80211w_mgmt_cipher" which
defaults to the standard AES-128-CMAC cipher and always emit a
"group_mgmt_cipher" setting in native hostapd config when 802.11w is
enabled.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2018-01-07 12:33:47 +01:00
Zoltan HERPAI
1f8585cf99 merge: ssid: update default ssid
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
2017-12-08 19:41:18 +01:00
Timo Sigurdsson
6515887ed9 hostapd: Expose the tdls_prohibit option to UCI
wpa_disable_eapol_key_retries can't prevent attacks against the
Tunneled Direct-Link Setup (TDLS) handshake. Jouni Malinen suggested
that the existing hostapd option tdls_prohibit can be used to further
complicate this possibility at the AP side. tdls_prohibit=1 makes
hostapd advertise that use of TDLS is not allowed in the BSS.

Note: If an attacker manages to lure both TDLS peers into a fake
AP, hiding the tdls_prohibit advertisement from them, it might be
possible to bypass this protection.

Make this option configurable via UCI, but disabled by default.

Signed-off-by: Timo Sigurdsson <public_timo.s@silentcreek.de>
2017-12-07 01:57:29 +02:00
Leon M. George
63462910dd hostapd: remove unused local var declaration
Signed-off-by: Leon M. George <leon@georgemail.eu>
2017-11-21 13:11:42 +01:00
Leon M. George
cc0847eda3 hostapd: don't set htmode for wpa_supplicant
no longer supported

Signed-off-by: Leon M. George <leon@georgemail.eu>
2017-11-21 13:11:42 +01:00
Felix Fietkau
d91494eedf hostapd: rework frequency/ht/vht selection for ibss/mesh
- Remove obsolete patch chunks regarding fixed_freq
- Instead of patching in custom HT40+/- parameters, use the standard
config syntax as much as possible.
- Use fixed_freq for mesh
- Fix issues with disabling obss scan when using fixed_freq on mesh

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-11-15 18:49:12 +01:00
Sven Eckelmann
772afef61d hostapd: explicitly set beacon interval for wpa_supplicant
The beacon_int is currently set explicitly for hostapd and when LEDE uses
iw to join and IBSS/mesh. But it was not done when wpa_supplicant was used
to join an encrypted IBSS or mesh.

This configuration is required when an AP interface is configured together
with an mesh interface. The beacon_int= line must therefore be re-added to
the wpa_supplicant config. The value is retrieved from the the global
variable.

Fixes: 1a16cb9c67 ("mac80211, hostapd: always explicitly set beacon interval")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name> [rebase]
2017-11-15 18:49:12 +01:00
Yury Shvedov
09f90b7829 hostapd: remove default r1_key_holder generation
By default, hostapd assumes r1_key_holder equal to bssid. If LEDE
configures the same static r1 key holder ID on two different APs (BSSes) the
RRB exchanges fails behind them.

Signed-off-by: Yury Shvedov <yshvedov@wimarksystems.com>
2017-11-06 16:39:41 +01:00
Jo-Philipp Wich
75021e9411 Revert "wpa_supplicant: log to syslog instead of stdout"
This reverts commit e7373e489d.

Support of "-s" depends on the CONFIG_DEBUG_SYSLOG compile time flag which
is not enabled for all build variants.

Revert the change for now until we can properly examine the size impact of
CONFIG_DEBUG_SYSLOG.

Fixes FS#1117.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2017-10-27 11:43:59 +02:00
Stijn Tintel
c5f97c9372 hostapd: add wpa_disable_eapol_key_retries option
Commit 2127425434 introduced an AP-side
workaround for key reinstallation attacks. This option can be used to
mitigate KRACK on the station side, in case those stations cannot be
updated. Since many devices are out there will not receive an update
anytime soon (if at all), it makes sense to include this workaround.

Unfortunately this can cause interoperability issues and reduced
robustness of key negotiation, so disable the workaround by default, and
add an option to allow the user to enable it if he deems necessary.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-10-17 17:25:05 +03:00
Felix Fietkau
9f5f5d250e hostapd: add support for specifying device config options directly in uci
This is useful for tuning some more exotic parameters where it doesn't
make sense to attempt to cover everything in uci directly

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-09-28 22:45:59 +02:00
Lorenzo Santina
b0d2c4ac41 hostapd: ft_over_ds support
Add support for ft_over_ds flag in ieee80211r

Signed-off-by: Lorenzo Santina <lorenzo.santina@edu.unito.it>
2017-09-18 21:24:10 +02:00
Lorenzo Santina
70593acdd5 hostapd: ft_psk_generate_local support
Add support for ft_psk_generate_local flag in ieee80211r

Signed-off-by: Lorenzo Santina <lorenzo.santina@edu.unito.it>
[original author]
Signed-off-by: Sergio <mailbox@sergio.spb.ru>
2017-09-18 21:23:35 +02:00
Lorenzo Santina
fd84ecda7d treewide: fix shellscript syntax errors/typos
Fix multiple syntax errors in shelscripts (of packages only)
These errors were causing many conditions to not working properly

Signed-off-by: Lorenzo Santina <lorenzo.santina@edu.unito.it>
[increase PKG_RELEASE, drop command substitution from directip.sh]
Signed-off-by: Mathias Kresin <dev@kresin.em>
2017-09-13 08:07:54 +02:00
Lorenzo Santina
bd24d53ea2 hostapd: fix iapp_interface option
ifname variable were not assigned due to syntax error
causing the hostapd config file to have an empty iapp_interface= option

Signed-off-by: Lorenzo Santina <lorenzo.santina.dev@gmail.com>
2017-09-10 08:30:32 +02:00
Stijn Tintel
e7373e489d wpa_supplicant: log to syslog instead of stdout
While debugging an issue with a client device, wpa_supplicant did not
seem to log anything at all. Make wpa_supplicant log to syslog instead
of stdout, to make debugging easier and to be consistent with hostapd.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-08-10 16:35:53 +02:00
Yury Shvedov
37c1513b1f hostapd: configure NAS ID regardless of encryption
RADIUS protocol could be used not only for authentication but for
accounting too. Accounting could be configured for any type of networks.
However there is no way to configure NAS Identifier for non-WPA
networks without this patch.

Signed-off-by: Yury Shvedov <yshvedov@wimarksystems.com>
[cleanup commit message]
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-06-28 02:18:20 +02:00
Yury Shvedov
0e7bbcd43b hostapd: add acct_interval option
Make an ability to configure Accounting-Interim-Interval via UCI

Signed-off-by: Yury Shvedov <yshvedov@wimarksystems.com>
[add hostapd prefix, cleanup commit message]
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-06-28 02:18:20 +02:00
Kevin Darbyshire-Bryant
4ed40be3e3 hostapd: add support for acs_chan_bias option
During auto channel selection we may wish to prefer certain channels
over others.

e.g. we can just squeeze 4 channels into europe so '1:0.8 5:0.8 9:0.8
13:0.8' does that.

Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
2017-06-24 13:11:19 +02:00
Matthias Schiffer
1a16cb9c67
mac80211, hostapd: always explicitly set beacon interval
One of the latest mac80211 updates added sanity checks, requiring the
beacon intervals of all VIFs of the same radio to match. This often broke
AP+11s setups, as these modes use different default intervals, at least in
some configurations (observed on ath9k).

Instead of relying on driver or hostapd defaults, change the scripts to
always explicitly set the beacon interval, defaulting to 100. This also
applies the beacon interval to 11s interfaces, which had been forgotten
before. VIF-specific beacon_int setting is removed from hostapd.sh.

Fixes FS#619.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
2017-05-13 17:12:54 +02:00
Matthias Schiffer
5e481881d7
hostapd: remove unused variable declarations in hostapd.sh
None of the variables in this "local" declaration are actually set in
wpa_supplicant_add_network().

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
2017-05-13 16:27:22 +02:00
Nick Lowe
ed62d91f4b hostapd: add legacy_rates option to disable 802.11b data rates.
Setting legacy_rates to 0 disables 802.11b data rates.
Setting legacy_rates to 1 enables 802.11b data rates. (Default)

The basic_rate option and supported_rates option are filtered based on this.

The rationale for the change, stronger now than in 2014, can be found in:

https://mentor.ieee.org/802.11/dcn/14/11-14-0099-00-000m-renewing-2-4ghz-band.pptx

The balance of equities between compatibility with b clients and the
detriment to the 2.4 GHz ecosystem as a whole strongly favors disabling b
rates by default.

Signed-off-by: Nick Lowe <nick.lowe@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name> [cleanup, defaults change]
2017-05-03 13:58:23 +02:00
Daniel Albers
cb801b052c hostapd: mv netifd.sh hostapd.sh
same name for the file on the host and target

Signed-off-by: Daniel Albers <daniel.albers@public-files.de>
2017-02-15 09:38:57 +01:00
Felix Fietkau
51e70267bd hostapd: remove unused hostapd-common-old package
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-08-05 11:02:57 +02:00
John Crispin
fa69553900 branding: add LEDE branding
Signed-off-by: John Crispin <blogic@openwrt.org>
2016-03-24 22:40:13 +01:00
Felix Fietkau
047f9ef8eb hostapd: Use network_get_device instead of uci_get_state
This fixes the IAPP functionality.

Signed-off-by: Petko Bordjukov <bordjukov@gmail.com>

SVN-Revision: 47455
2015-11-11 08:34:59 +00:00
Felix Fietkau
23b4bf6507 hostapd: add 802.11r support
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

SVN-Revision: 45051
2015-03-26 23:34:33 +00:00
Felix Fietkau
07b17c6b25 hostapd: allow multiple key management algorithms
To enable 802.11r, wpa_key_mgmt should contain FT-EAP or FT-PSK. Allow
multiple key management algorithms to make this possible.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

SVN-Revision: 45050
2015-03-26 23:34:24 +00:00
Felix Fietkau
4482d10a04 hostapd: append nasid to config for all WPA types
The 802.11r implementation in hostapd uses nas_identifier as PMK-R0 Key
Holder identifier. As 802.11r can also be used with WPA Personal, nasid
should be appended to the hostapd config for all WPA types.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

SVN-Revision: 45049
2015-03-26 23:34:10 +00:00
Felix Fietkau
7ff276afd3 hostapd: remove bogus default setting for wps_pin (#17873)
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 42553
2014-09-15 16:09:23 +00:00
John Crispin
3bc4516ebb hostapd: Add optional support for hostapd own_ip_addr in wireless config
`own_ip_addr` is used by hostapd as NAS-IP-Address.
This is used to identify the AP that is requesting the authentication of the
user and could be used to define which AP's can authenticate users.
Some vendors implement only NAS-Identifier or NAS-IP-Address and not both.
This patch adds ownip as an optional parameter in /etc/config/wireless.

Signed-off-by: Thomas Wouters <thomaswouters@gmail.com>

SVN-Revision: 40934
2014-06-02 12:44:40 +00:00
Felix Fietkau
ff40bc2db9 hostapd: recognize 8021x as an authentication mode
Currently, in order to configure the authentication daemon in
8021x mode, we need to set wireless.@wifi-iface[0].encryption="wpa"
Though it works it confuses folks as 8021x is using WEP
encryption and not WPA. Therefore the terminology itself is
confusing. This change adds 8021x as a recognized string for 8021x
authentication.

Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>

SVN-Revision: 38339
2013-10-08 11:09:52 +00:00
Felix Fietkau
9beaea6fc2 hostapd: add external registrar support
Setting wireless.@wifi-iface[N].ext_registrar=1 will enable UPNP
advertising and add an external registrar to the interface this vif
belongs to (br-lan if the vif is included in the LAN bridge). By
enabling this we append upnp_iface=xxx to the hostapd config file.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>

SVN-Revision: 38338
2013-10-08 11:09:48 +00:00
Felix Fietkau
bcbc9b1e89 hostapd: fix hostapd RSN preauthentication PMKSA caching
In 2009 OpenWrt's hostapd config added an "auth_cache" boolean
to be used to address a reported issue #12129 [0] on a forum [1].
The reported issue on the ticket is different that the one
described on the forum. The commit was r33359. This change broke
proper RSN preauthentication [2] [3] [4] expectations on hostapd's
configuration for WPA2 and this in turn disabled PMKSA caching and
Opportunistic Key Caching. This change:

  * Leaves the "auth_cache" to be used only for WPA networks for those
    looking to use this as a workaround to a reported issue but annotates
    a warning over its usage.

  * Separate "auth_cache" from WPA2 RSN preauthentication, leaving
    WPA2 RSN preauthentication to enabled only with "rsn_preauth" with
    the expected and recommended settings.

  * Adds a new WPA2 RSN preauthentication "rsn_preauth_testing" to
    be used when evaluating funcionality for WPA2 RSN preauthentication
    with the expected and recommended settings with the only difference
    so far with what should be enabled by default to disable Opportunistic
    Key Caching.

Disabling the PMKSA cache should mean the STA could not roam off and back
onto the AP that had PMKSA caching disabled and would require a full
authentication cycle. This fixes this for WPA2 networks with
RSN preauthentication enabled.

This change should be applied to AA as well as trunk.

  TL DR;

The issue described on the forum has to do with failure of a STA
being able to try to authenticate again with the AP if it failed
its first try. This may have been an issue with hostapd in 2009
but as per some tests I cannot reproduce this today on a WPA2
network.

The issue described on the ticket alludes to a security issue with the
design of using a Radius server to authenticate to an AP. The issue
vaguely alludes to the circumstances of zapping a user, deleting their
authentication credentials to log in to the network, and that if
RSN preauthentication is enabled with PMKSA caching that the user
that was zapped would still be able to authenticate.

Lets treat these as separate issues.

I cannot reproduce the first issue reported on the forums of not
being able to authenticate anymore on a WPA2 network.

The issue reported on the ticket modified WPA2 RSN preauthentication
by adding two fields to the hostapd configuration if auth_cache
was enabled:

  * disable_pmksa_caching=1
  * okc=0

The first one disables PMKSA authentication cache.
The second one disables Opportunistic Key Caching.

The issue reported on the ticket was fixed by implementing a workaround
in hostapd's configuration. Disabling PMKSA caching breaks proper use
of WPA2 RSN pre authentication. The usage of disable_pmksa_caching=1
prevents hostapd from adding PMKSA entries into its cache when a successful
802.1x authentication occurs. In practice RSN preauthentication would
trigger a STA to perform authentication with other APs on the same SSID,
it would then have its own supplicant PMKSA cache held. If a STA roams
between one AP to another no new authenitcation would need to be performed
as the new AP would already have authenticated the STA. The purpose of the
PMKSA cache on the AP side would be for the AP to use the same PMKID for
a STA when the STA roams off onto another BSSID and later comes back to it.

Disabling Opportunistic Key Caching could help the reported issue
as well but its not the correct place to address this. Opportunistic
Key Caching enables an AP with different interfaces to share the
PMKSA cache. Its a technical enhancement and disabling it would
be useful to let a testing suite properly test for RSN preauthentication
given that otherwise Opportunistic Key Caching would enable an
interface being tested to derive its own derive the PMKSA entry.
In production though okc=1 should be enabled to help with RSN
preauthentication.

The real fix for this particular issue outside of the scope of hostapd's
configuration and it should not be dealt with as a workaround to
its configuration and breaking expected RSN preauthentication and
technical optimizations. Revert this change and enable users to pick
and choose to enable or disable disable_pmksa_caching and okc expecting them
to instead have read clearly more what these do.

As for the core issure ported, the correct place to fix this is to
enable a sort of messaging between the RADIUS server and its peers
so that if caching for authentication is enabled that cache can be
cleared upon user credential updates. Updating a user password
(not just zapping a user) is another possible issue that would need
to be resolved here. Another part of the solution might be to reduce
the cache timing to account for any systematic limitations (RADIUS
server not able to ask peers to clear cache might be
one).

[0] https://dev.openwrt.org/changeset/33359
[1] https://forum.openwrt.org/viewtopic.php?id=19596
[2] http://wireless.kernel.org/en/users/Documentation/hostapd#IEEE_802.11i.2FRSN.2FWPA2_pre-authentication
[3] http://wireless.kernel.org/en/users/Documentation/wpa_supplicant#RSN_preauthentication
[4] http://wiki.openwrt.org/doc/recipes/rsn_preauthentication

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>

SVN-Revision: 38336
2013-10-08 11:09:40 +00:00
Felix Fietkau
40aec9ed46 hostapd: Add WPS unconfigured & WPS pin method support
Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>

SVN-Revision: 38335
2013-10-08 11:09:36 +00:00
Felix Fietkau
4689bc8517 hostapd: Add eap_reauth_period config option
This adds the eap_reauth_period to be used for modifying
the RADIUS server reauthentication authentication period,
a parameter that gets passed directly to the hostapd
configuration file.

Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>

SVN-Revision: 38334
2013-10-08 11:09:27 +00:00