No description
132dfbe8c2
Currently, if multiple bss share are bridge and tagged vlan interface, only the first instance of struct hostapd_vlan for this vlanid will have the DVLAN_CLEAN_VLAN flag added. Thus, when this instance is removed, the tagged vlan interface will be removed from bridge, thought other bss might still need it. Similarily, the bridge will be left over, as the does not have zero ports when the first instance of a struct hostapd_vlan is freed. This patch fixes this by having a global (per process) reference counter for dynamic tagged vlan and dynamically created bridge interfaces, so they are only removed after all local users are freed. (struct hapd_interfaces *)->vlan_priv is used to hold src/ap/vlan_init.c global per-process data like drv_priv does; right now this is only used for the interface reference counting, but could get extended when needed. Then possibly some vlan_global_init / vlan_global_deinit should be added, but this is not required right now. Additionally, vlan->configured is checked to avoid reference counter decreasing before vlan_newlink increased them. In order to avoid race conditions, vlan_dellink is called explicitly after hostapd_vlan_if_remove. Otherwise there would be a short timeframe between hostapd_vlan_if_remove and vlan_dellink during which the struct hostapd_vlan still exists, so ap_sta_bind_vlan would try to attach stations to it. Signed-off-by: Michael Braun <michael-dev@fami-braun.de> |
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| doc | ||
| eap_example | ||
| hostapd | ||
| hs20 | ||
| mac80211_hwsim | ||
| patches | ||
| radius_example | ||
| src | ||
| tests | ||
| wlantest | ||
| wpa_supplicant | ||
| wpadebug | ||
| wpaspy | ||
| .gitignore | ||
| Android.mk | ||
| build_release | ||
| CONTRIBUTIONS | ||
| COPYING | ||
| README | ||
wpa_supplicant and hostapd -------------------------- Copyright (c) 2002-2015, 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.