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Helmut Schaa ded22b5390 hostapd: Fix segfault after ACS when flushing STAs 
When hostapd receives an auth frame during ACS the transmission of
the according auth response will always fail:

ACS: Automatic channel selection started, this may take a bit
[..]
send_auth_reply: send: Resource temporarily unavailable
[..]

However, a station info entry was created. Once ACS is finished
it will flush all stations even though hapd was not yet fully
initialized. This results in a segfault when trying to access
hapd->radius:

0  0x0042c1c0 in radius_client_flush_auth ()
1  0x00416a94 in ap_free_sta ()
2  0x00416cc0 in hostapd_free_stas ()
3  0x0040bce8 in hostapd_flush_old_stations ()
4  0x0040c790 in hostapd_setup_interface_complete ()
5  0x0046347c in acs_scan_complete ()
6  0x0040f834 in hostapd_wpa_event ()
7  0x0043af08 in send_scan_event.part.46 ()
8  0x00443a64 in send_scan_event ()
9  0x00443c24 in do_process_drv_event ()
10 0x004449e8 in process_global_event ()
11 0x7767d7d0 in ?? ()

Fix this by not presuming anything about the initialization state of
hapd and checking ->radius before accessing.

Signed-off-hostapd: Helmut Schaa <helmut.schaa@googlemail.com>
2013-10-14 20:44:31 +03:00
doc D-Bus: Emit signal when a station is authorized or deauthorized 2013-06-22 12:09:09 +03:00
eap_example Remove the GPL notification from files contributed by Jouni Malinen 2012-02-11 19:39:36 +02:00
hostapd hlr_auc_gw: Fix max_chal value validation 2013-09-29 18:47:26 +03:00
mac80211_hwsim Remove the GPL notification from files contributed by Atheros 2012-02-11 19:39:36 +02:00
patches Add OpenSSL 0.9.8x patch for EAP-FAST 2012-07-07 11:01:02 +03:00
radius_example Fix memory leaks on radius_client_send error paths 2012-04-01 17:55:20 +03:00
src hostapd: Fix segfault after ACS when flushing STAs 2013-10-14 20:44:31 +03:00
tests tests: Flush stdout after each status line print 2013-09-29 20:42:37 +03:00
wlantest wlantest: Always write radiotap pcap-ng 2013-06-22 13:17:14 +03:00
wpa_supplicant WPS NFC: Cancel scheduled scan before attempting a scan 2013-10-14 20:42:27 +03:00
wpadebug wpadebug: Add option to ignore SSL errors 2013-06-07 20:21:00 +03:00
wpaspy wpaspy: Add native Python implementation of ctrl_iface access 2013-03-19 01:53:09 +02:00
.gitignore gitignore additional build files 2013-03-29 13:15:27 +02:00
Android.mk Android: Add a top level Android.mk 2013-05-18 11:55:32 +03:00
build_release Remove scripts and notes related to the Windows binary package 2012-05-08 20:49:33 +03:00
CONTRIBUTIONS Select the BSD license terms as the only license alternative 2012-02-11 19:39:31 +02:00
COPYING Select the BSD license terms as the only license alternative 2012-02-11 19:39:31 +02:00
README Update copyright notices to include year 2013 2013-01-12 17:51:53 +02:00

README 

wpa_supplicant and hostapd
--------------------------

Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi> and contributors
All Rights Reserved.

These programs are licensed under the BSD license (the one with
advertisement clause removed).

If you are submitting changes to the project, please see CONTRIBUTIONS
file for more instructions.


This package may include either wpa_supplicant, hostapd, or both. See
README file respective subdirectories (wpa_supplicant/README or
hostapd/README) for more details.

Source code files were moved around in v0.6.x releases and compared to
earlier releases, the programs are now built by first going to a
subdirectory (wpa_supplicant or hostapd) and creating build
configuration (.config) and running 'make' there (for Linux/BSD/cygwin
builds).


License
-------

This software may be distributed, used, and modified under the terms of
BSD license:

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

3. Neither the name(s) of the above-listed copyright holder(s) nor the
   names of its contributors may be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.