This bug was fixed in the package wpasupplicant - 0.7.3-6ubuntu2.2
---------------
wpasupplicant (0.7.3-6ubuntu2.2) precise-proposed; urgency=low
* Multiple patches to reduce the number of disconnections for WPA Enterprise
roaming and Opportunistic Key Caching. (LP: #1187524)
* In debian/patches:
0001-sme-fix-retry-after-auth-assoc-timeout-failure.patch,
0002-sme-optimize-recovery-from-common-load-balancing-mechanisms.patch,
0003-sme-blacklist-bss-on-first-failure-if-only-a-*.patch,
0004-sme-extend-load-balancing-optimization-in-bss-blacklisting.patch,
0005-sme-optimize-recovery-from-association-command-failures.patch,
0006-sme-add-timers-for-authentication-and-association.patch,
0007-sme-nl80211-set-cipher-suites.patch:
Cherry-pick patches fixing SME (Session Management Entity) for the nl80211
driver, which works as a basis for the OKC patches.
* In debian/patches:
0001-pmkokc-Set-portValid-TRUE-on-association-for-driver-based-4.patch,
0002-pmkokc-Clear-WPA-and-EAPOL-state-machine-config-pointer-on-.patch,
0003-pmkokc-Clear-driver-PMKSA-cache-entry-on-PMKSA-cache-expira.patch,
0004-pmkokc-Flush-PMKSA-cache-entries-and-invalidate-EAP-state-o.patch,
0005-pmkokc-Fix-proactive_key_caching-configuration-to-WPA-code.patch,
0006-pmkokc-RSN-Add-a-debug-message-when-considing-addition-of-O.patch,
0007-pmkokc-Clear-OKC-based-PMKSA-caching-entries-if-PMK-is-chan.patch,
0008-pmkokc-Move-wpa_sm_remove_pmkid-call-to-PMKSA-cache-entry-f.patch,
0009-pmkokc-Use-PMKSA-cache-entries-with-only-a-single-network-c.patch,
0010-pmkokc-PMKSA-Do-not-evict-active-cache-entry-when-adding-ne.patch,
0011-pmkokc-PMKSA-Set-cur_pmksa-pointer-during-initial-associati.patch,
0012-pmkokc-PMKSA-make-deauthentication-due-to-cache-entry-remov.patch,
0013-pmkokc-PMKSA-update-current-cache-entry-due-to-association-.patch:
Cherry-pick patches to properly do OKC (Opportunistic Key Caching) which
helps maintaining connectivity on networks secured with WPA Enterprise,
especially on nl80211-based drivers -- these patches require SME, and add
or fix key caching and handling of the cache entries.
* debian/patches/force-enable-okc.patch: force Opportunistic Key Caching to
be enabled.
* debian/patches/less-aggressive-roaming.patch: use less aggressive roaming
settings to avoid switching to another AP unnecessarily, when the actual
signal level difference is small.
* debian/patches/wpa_supplicant-dbus-null-error.patch: Don't send NULL to
dbus_message_new_error().
* debian/patches/0001-nl80211-Fix-UNSPEC-signal-quality-reporting.patch: fix
marking qual as invalid rather than signal level.
* debian/patches/wpa_supplicant-squelch-driver-disconnect-spam.patch: recover
cleanly from streams of disconnect messages (like on iwl3945).
* debian/patches/wpa_supplicant-assoc-timeout.patch: increase association
timeouts.
-- Mathieu Trudel-Lapierre <[email protected]> Wed, 12 Jun 2013 15:57:50
-0400
** Changed in: wpasupplicant (Ubuntu Precise)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1187524
Title:
Frequent disconnects under certain network conditions
Status in “wpasupplicant” package in Ubuntu:
Invalid
Status in “wpasupplicant” source package in Precise:
Fix Released
Bug description:
[Impact]
Under WPA2-Enterprise secured networks, roaming between the secure APs need
to cache the keys used, since although the AP is different, the same
authentication backend (a server of some sort, possibly RADIUS) is most likely
the same. This only impacts specific setups using WPA Enterprise security on
wireless networks in environments where lots of APs are installed and roaming
happens frequently.
[Test Case]
Run the new WPA supplicant.
Notice whether there are fewer wireless disconnects events.
[Regression Potential]
Low, this only affects WPA Enterprise security, and only in specific setups
where roaming between one AP to the next is both frequent and expected. The
included patches are backports from WPA 1.0, which have been in Ubuntu since
Quantal, with no adverse effects.
However, there are quite a few patches at cause, which introduce
complexity in the testing and the actual functional changes.
See http://people.ubuntu.com/~mathieu-tl/wpa.debdiff for the full list
of changes.
---
There are several upstream patches that help reduce network
disconnects and excessive roaming on some networks.
Mainly they are related to Opportunistic Key Caching, authorization
and association timing fixes.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/wpasupplicant/+bug/1187524/+subscriptions
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