4150c57212
Drivers are currently supposed to keep track of monitor interfaces if they allow so-called "hard" monitor, and they are also supposed to keep track of multicast etc. This patch changes that, replaces the set_multicast_list() callback with a new configure_filter() callback that takes filter flags (FIF_*) instead of interface flags (IFF_*). For a driver, this means it should open the filter as much as necessary to get all frames requested by the filter flags. Accordingly, the filter flags are named "positively", e.g. FIF_ALLMULTI. Multicast filtering is a bit special in that drivers that have no multicast address filters need to allow multicast frames through when either the FIF_ALLMULTI flag is set or when the mc_count value is positive. At the same time, drivers are no longer notified about monitor interfaces at all, this means they now need to implement the start() and stop() callbacks and the new change_filter_flags() callback. Also, the start()/stop() ordering changed, start() is now called *before* any add_interface() as it really should be, and stop() after any remove_interface(). The patch also changes the behaviour of setting the bssid to multicast for scanning when IEEE80211_HW_NO_PROBE_FILTERING is set; the IEEE80211_HW_NO_PROBE_FILTERING flag is removed and the filter flag FIF_BCN_PRBRESP_PROMISC introduced. This is a lot more efficient for hardware like b43 that supports it and other hardware can still set the BSSID to all-ones. Driver modifications by Johannes Berg (b43 & iwlwifi), Michael Wu (rtl8187, adm8211, and p54), Larry Finger (b43legacy), and Ivo van Doorn (rt2x00). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/*
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Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
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<http://rt2x00.serialmonkey.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the
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Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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Module: rt2x00lib
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Abstract: rt2x00 generic configuration routines.
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*/
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/*
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* Set enviroment defines for rt2x00.h
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*/
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#define DRV_NAME "rt2x00lib"
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include "rt2x00.h"
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#include "rt2x00lib.h"
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void rt2x00lib_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *mac)
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{
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if (mac)
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rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, mac);
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}
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void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
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{
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if (bssid)
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rt2x00dev->ops->lib->config_bssid(rt2x00dev, bssid);
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}
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void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, int type)
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{
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struct interface *intf = &rt2x00dev->interface;
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if (!test_bit(INTERFACE_RESUME, &rt2x00dev->flags) &&
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(!!test_bit(INTERFACE_ENABLED, &rt2x00dev->flags) ==
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!!is_interface_present(intf)))
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return;
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rt2x00dev->ops->lib->config_type(rt2x00dev, type);
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/*
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* Update the configuration flags.
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*/
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if (is_interface_present(intf))
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__set_bit(INTERFACE_ENABLED, &rt2x00dev->flags);
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else
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__clear_bit(INTERFACE_ENABLED, &rt2x00dev->flags);
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}
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void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, struct ieee80211_conf *conf)
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{
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int flags = 0;
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/*
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* If we are in RESUME state we should
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* force all configuration options.
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*/
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if (test_bit(INTERFACE_RESUME, &rt2x00dev->flags)) {
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flags = CONFIG_UPDATE_ALL;
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goto config;
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}
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/*
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* Check which configuration options have been
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* updated and should be send to the device.
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*/
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if (rt2x00dev->rx_status.phymode != conf->phymode)
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flags |= CONFIG_UPDATE_PHYMODE;
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if (rt2x00dev->rx_status.channel != conf->channel)
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flags |= CONFIG_UPDATE_CHANNEL;
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if (rt2x00dev->tx_power != conf->power_level)
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flags |= CONFIG_UPDATE_TXPOWER;
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if (rt2x00dev->rx_status.antenna == conf->antenna_sel_rx)
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flags |= CONFIG_UPDATE_ANTENNA;
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/*
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* The following configuration options are never
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* stored anywhere and will always be updated.
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*/
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flags |= CONFIG_UPDATE_SLOT_TIME;
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flags |= CONFIG_UPDATE_BEACON_INT;
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config:
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rt2x00dev->ops->lib->config(rt2x00dev, flags, conf);
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/*
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* Some configuration changes affect the link quality
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* which means we need to reset the link tuner.
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*/
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if (flags & (CONFIG_UPDATE_CHANNEL | CONFIG_UPDATE_ANTENNA))
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rt2x00lib_reset_link_tuner(rt2x00dev);
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rt2x00dev->rx_status.phymode = conf->phymode;
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rt2x00dev->rx_status.freq = conf->freq;
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rt2x00dev->rx_status.channel = conf->channel;
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rt2x00dev->tx_power = conf->power_level;
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rt2x00dev->rx_status.antenna = conf->antenna_sel_rx;
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}
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