2007-05-05 20:45:53 +02:00
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/*
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* Copyright 2002-2005, Instant802 Networks, Inc.
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* Copyright 2005-2006, Devicescape Software, Inc.
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* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
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*
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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 version 2 as
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* published by the Free Software Foundation.
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*/
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#include <net/mac80211.h>
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#include <net/ieee80211_radiotap.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/skbuff.h>
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#include <linux/etherdevice.h>
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#include <linux/if_arp.h>
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#include <linux/wireless.h>
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#include <linux/rtnetlink.h>
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#include <linux/bitmap.h>
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2007-09-17 20:56:21 +02:00
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#include <net/net_namespace.h>
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2007-05-05 20:45:53 +02:00
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#include <net/cfg80211.h>
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#include "ieee80211_i.h"
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#include "ieee80211_rate.h"
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2008-02-23 15:17:18 +01:00
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#include "mesh.h"
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2007-05-05 20:45:53 +02:00
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#include "wep.h"
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#include "wme.h"
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#include "aes_ccm.h"
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#include "ieee80211_led.h"
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2007-09-18 23:29:21 +02:00
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#include "cfg.h"
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2007-05-05 20:46:38 +02:00
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#include "debugfs.h"
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#include "debugfs_netdev.h"
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2007-05-05 20:45:53 +02:00
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2007-11-26 15:14:34 +01:00
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#define SUPP_MCS_SET_LEN 16
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2007-07-10 19:32:08 +02:00
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/*
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* For seeing transmitted packets on monitor interfaces
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* we have a radiotap header too.
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*/
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struct ieee80211_tx_status_rtap_hdr {
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struct ieee80211_radiotap_header hdr;
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__le16 tx_flags;
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u8 data_retries;
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} __attribute__ ((packed));
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2007-07-27 15:43:23 +02:00
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/* common interface routines */
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2007-07-10 19:32:08 +02:00
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2007-09-27 07:13:38 +02:00
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static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr)
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2007-07-27 15:43:23 +02:00
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{
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memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
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return ETH_ALEN;
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}
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2007-05-05 20:45:53 +02:00
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[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
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/* must be called under mdev tx lock */
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static void ieee80211_configure_filter(struct ieee80211_local *local)
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{
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unsigned int changed_flags;
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unsigned int new_flags = 0;
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2007-09-26 15:19:47 +02:00
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if (atomic_read(&local->iff_promiscs))
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[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
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new_flags |= FIF_PROMISC_IN_BSS;
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2007-09-26 15:19:47 +02:00
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if (atomic_read(&local->iff_allmultis))
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[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
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new_flags |= FIF_ALLMULTI;
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if (local->monitors)
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2008-01-31 19:48:23 +01:00
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new_flags |= FIF_BCN_PRBRESP_PROMISC;
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if (local->fif_fcsfail)
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new_flags |= FIF_FCSFAIL;
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if (local->fif_plcpfail)
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new_flags |= FIF_PLCPFAIL;
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if (local->fif_control)
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new_flags |= FIF_CONTROL;
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if (local->fif_other_bss)
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new_flags |= FIF_OTHER_BSS;
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[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
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changed_flags = local->filter_flags ^ new_flags;
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/* be a bit nasty */
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new_flags |= (1<<31);
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local->ops->configure_filter(local_to_hw(local),
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changed_flags, &new_flags,
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local->mdev->mc_count,
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local->mdev->mc_list);
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WARN_ON(new_flags & (1<<31));
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local->filter_flags = new_flags & ~(1<<31);
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}
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2007-07-27 15:43:23 +02:00
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/* master interface */
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2007-05-05 20:45:53 +02:00
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2007-07-27 15:43:23 +02:00
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static int ieee80211_master_open(struct net_device *dev)
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{
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struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
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struct ieee80211_sub_if_data *sdata;
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int res = -EOPNOTSUPP;
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2007-05-05 20:45:53 +02:00
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2007-09-18 23:29:21 +02:00
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/* we hold the RTNL here so can safely walk the list */
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list_for_each_entry(sdata, &local->interfaces, list) {
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2007-07-27 15:43:23 +02:00
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if (sdata->dev != dev && netif_running(sdata->dev)) {
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res = 0;
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break;
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}
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}
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return res;
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}
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2007-05-05 20:45:53 +02:00
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2007-07-27 15:43:23 +02:00
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static int ieee80211_master_stop(struct net_device *dev)
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2007-05-05 20:45:53 +02:00
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{
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2007-07-27 15:43:23 +02:00
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struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
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struct ieee80211_sub_if_data *sdata;
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2007-05-05 20:45:53 +02:00
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2007-09-18 23:29:21 +02:00
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/* we hold the RTNL here so can safely walk the list */
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list_for_each_entry(sdata, &local->interfaces, list)
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2007-07-27 15:43:23 +02:00
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if (sdata->dev != dev && netif_running(sdata->dev))
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dev_close(sdata->dev);
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2007-05-05 20:45:53 +02:00
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2007-07-27 15:43:23 +02:00
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return 0;
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}
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2007-05-05 20:45:53 +02:00
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[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
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static void ieee80211_master_set_multicast_list(struct net_device *dev)
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{
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struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
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ieee80211_configure_filter(local);
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}
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2007-07-27 15:43:23 +02:00
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/* regular interfaces */
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2007-05-05 20:45:53 +02:00
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2007-07-27 15:43:23 +02:00
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static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
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2007-05-05 20:45:53 +02:00
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{
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2008-02-23 15:17:18 +01:00
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int meshhdrlen;
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struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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meshhdrlen = (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) ? 5 : 0;
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2007-07-27 15:43:23 +02:00
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/* FIX: what would be proper limits for MTU?
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* This interface uses 802.3 frames. */
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2008-02-23 15:17:18 +01:00
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if (new_mtu < 256 ||
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new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) {
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2007-07-27 15:43:23 +02:00
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printk(KERN_WARNING "%s: invalid MTU %d\n",
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dev->name, new_mtu);
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return -EINVAL;
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}
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2007-05-05 20:45:53 +02:00
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2007-07-27 15:43:23 +02:00
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#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
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printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
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#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
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dev->mtu = new_mtu;
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2007-05-05 20:45:53 +02:00
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return 0;
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}
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2007-07-27 15:43:23 +02:00
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static inline int identical_mac_addr_allowed(int type1, int type2)
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{
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return (type1 == IEEE80211_IF_TYPE_MNTR ||
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type2 == IEEE80211_IF_TYPE_MNTR ||
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(type1 == IEEE80211_IF_TYPE_AP &&
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type2 == IEEE80211_IF_TYPE_WDS) ||
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(type1 == IEEE80211_IF_TYPE_WDS &&
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(type2 == IEEE80211_IF_TYPE_WDS ||
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type2 == IEEE80211_IF_TYPE_AP)) ||
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(type1 == IEEE80211_IF_TYPE_AP &&
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type2 == IEEE80211_IF_TYPE_VLAN) ||
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(type1 == IEEE80211_IF_TYPE_VLAN &&
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(type2 == IEEE80211_IF_TYPE_AP ||
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type2 == IEEE80211_IF_TYPE_VLAN)));
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}
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2007-05-05 20:45:53 +02:00
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2007-07-27 15:43:23 +02:00
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static int ieee80211_open(struct net_device *dev)
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2007-07-27 15:43:22 +02:00
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{
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2007-07-27 15:43:23 +02:00
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struct ieee80211_sub_if_data *sdata, *nsdata;
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struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
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struct ieee80211_if_init_conf conf;
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int res;
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2008-02-10 14:16:52 +01:00
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bool need_hw_reconfig = 0;
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2008-02-25 16:27:49 +01:00
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struct sta_info *sta;
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2007-05-05 20:45:53 +02:00
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2007-07-27 15:43:23 +02:00
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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2007-09-17 07:29:24 +02:00
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2007-09-18 23:29:21 +02:00
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/* we hold the RTNL here so can safely walk the list */
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list_for_each_entry(nsdata, &local->interfaces, list) {
|
2007-07-27 15:43:23 +02:00
|
|
|
struct net_device *ndev = nsdata->dev;
|
2007-07-27 15:43:22 +02:00
|
|
|
|
2008-02-21 01:10:07 +01:00
|
|
|
if (ndev != dev && ndev != local->mdev && netif_running(ndev)) {
|
|
|
|
/*
|
|
|
|
* Allow only a single IBSS interface to be up at any
|
|
|
|
* time. This is restricted because beacon distribution
|
|
|
|
* cannot work properly if both are in the same IBSS.
|
|
|
|
*
|
|
|
|
* To remove this restriction we'd have to disallow them
|
|
|
|
* from setting the same SSID on different IBSS interfaces
|
|
|
|
* belonging to the same hardware. Then, however, we're
|
|
|
|
* faced with having to adopt two different TSF timers...
|
|
|
|
*/
|
|
|
|
if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
|
|
|
|
nsdata->vif.type == IEEE80211_IF_TYPE_IBSS)
|
|
|
|
return -EBUSY;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Disallow multiple IBSS/STA mode interfaces.
|
|
|
|
*
|
|
|
|
* This is a technical restriction, it is possible although
|
|
|
|
* most likely not IEEE 802.11 compliant to have multiple
|
|
|
|
* STAs with just a single hardware (the TSF timer will not
|
|
|
|
* be adjusted properly.)
|
|
|
|
*
|
|
|
|
* However, because mac80211 uses the master device's BSS
|
|
|
|
* information for each STA/IBSS interface, doing this will
|
|
|
|
* currently corrupt that BSS information completely, unless,
|
|
|
|
* a not very useful case, both STAs are associated to the
|
|
|
|
* same BSS.
|
|
|
|
*
|
|
|
|
* To remove this restriction, the BSS information needs to
|
|
|
|
* be embedded in the STA/IBSS mode sdata instead of using
|
|
|
|
* the master device's BSS structure.
|
|
|
|
*/
|
|
|
|
if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
|
|
|
|
sdata->vif.type == IEEE80211_IF_TYPE_IBSS) &&
|
|
|
|
(nsdata->vif.type == IEEE80211_IF_TYPE_STA ||
|
|
|
|
nsdata->vif.type == IEEE80211_IF_TYPE_IBSS))
|
|
|
|
return -EBUSY;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The remaining checks are only performed for interfaces
|
|
|
|
* with the same MAC address.
|
|
|
|
*/
|
|
|
|
if (compare_ether_addr(dev->dev_addr, ndev->dev_addr))
|
|
|
|
continue;
|
|
|
|
|
2007-09-17 07:29:24 +02:00
|
|
|
/*
|
|
|
|
* check whether it may have the same address
|
|
|
|
*/
|
2007-12-19 01:31:27 +01:00
|
|
|
if (!identical_mac_addr_allowed(sdata->vif.type,
|
|
|
|
nsdata->vif.type))
|
2007-09-17 07:29:24 +02:00
|
|
|
return -ENOTUNIQ;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* can only add VLANs to enabled APs
|
|
|
|
*/
|
2007-12-19 01:31:27 +01:00
|
|
|
if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN &&
|
2008-02-21 01:10:07 +01:00
|
|
|
nsdata->vif.type == IEEE80211_IF_TYPE_AP)
|
2007-09-17 07:29:24 +02:00
|
|
|
sdata->u.vlan.ap = nsdata;
|
2007-07-27 15:43:23 +02:00
|
|
|
}
|
|
|
|
}
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-12-19 01:31:27 +01:00
|
|
|
switch (sdata->vif.type) {
|
2007-09-17 07:29:24 +02:00
|
|
|
case IEEE80211_IF_TYPE_WDS:
|
|
|
|
if (is_zero_ether_addr(sdata->u.wds.remote_addr))
|
|
|
|
return -ENOLINK;
|
2008-02-25 16:27:49 +01:00
|
|
|
|
|
|
|
/* Create STA entry for the WDS peer */
|
|
|
|
sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!sta)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
sta->flags |= WLAN_STA_AUTHORIZED;
|
|
|
|
|
|
|
|
res = sta_info_insert(sta);
|
|
|
|
if (res) {
|
|
|
|
sta_info_destroy(sta);
|
|
|
|
return res;
|
|
|
|
}
|
2007-09-17 07:29:24 +02:00
|
|
|
break;
|
|
|
|
case IEEE80211_IF_TYPE_VLAN:
|
|
|
|
if (!sdata->u.vlan.ap)
|
|
|
|
return -ENOLINK;
|
|
|
|
break;
|
2007-09-26 15:19:43 +02:00
|
|
|
case IEEE80211_IF_TYPE_AP:
|
|
|
|
case IEEE80211_IF_TYPE_STA:
|
|
|
|
case IEEE80211_IF_TYPE_MNTR:
|
|
|
|
case IEEE80211_IF_TYPE_IBSS:
|
2008-02-23 15:17:07 +01:00
|
|
|
case IEEE80211_IF_TYPE_MESH_POINT:
|
2007-09-26 15:19:43 +02:00
|
|
|
/* no special treatment */
|
|
|
|
break;
|
2007-09-28 14:01:25 +02:00
|
|
|
case IEEE80211_IF_TYPE_INVALID:
|
|
|
|
/* cannot happen */
|
|
|
|
WARN_ON(1);
|
|
|
|
break;
|
2007-09-17 07:29:24 +02:00
|
|
|
}
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
if (local->open_count == 0) {
|
|
|
|
res = 0;
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
if (local->ops->start)
|
|
|
|
res = local->ops->start(local_to_hw(local));
|
|
|
|
if (res)
|
2007-07-27 15:43:23 +02:00
|
|
|
return res;
|
2008-02-10 14:16:52 +01:00
|
|
|
need_hw_reconfig = 1;
|
2008-01-07 19:45:24 +01:00
|
|
|
ieee80211_led_radio(local, local->hw.conf.radio_enabled);
|
2007-07-27 15:43:23 +02:00
|
|
|
}
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-12-19 01:31:27 +01:00
|
|
|
switch (sdata->vif.type) {
|
2007-09-17 07:29:24 +02:00
|
|
|
case IEEE80211_IF_TYPE_VLAN:
|
|
|
|
list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans);
|
|
|
|
/* no need to tell driver */
|
|
|
|
break;
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
case IEEE80211_IF_TYPE_MNTR:
|
2008-01-31 19:48:27 +01:00
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
|
|
|
|
local->cooked_mntrs++;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
/* must be before the call to ieee80211_configure_filter */
|
2007-07-27 15:43:23 +02:00
|
|
|
local->monitors++;
|
2008-01-31 19:48:23 +01:00
|
|
|
if (local->monitors == 1)
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
|
2008-01-31 19:48:23 +01:00
|
|
|
|
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
|
|
|
|
local->fif_fcsfail++;
|
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
|
|
|
|
local->fif_plcpfail++;
|
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
|
|
|
|
local->fif_control++;
|
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
|
|
|
|
local->fif_other_bss++;
|
|
|
|
|
|
|
|
netif_tx_lock_bh(local->mdev);
|
|
|
|
ieee80211_configure_filter(local);
|
|
|
|
netif_tx_unlock_bh(local->mdev);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
break;
|
|
|
|
case IEEE80211_IF_TYPE_STA:
|
|
|
|
case IEEE80211_IF_TYPE_IBSS:
|
|
|
|
sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
|
|
|
|
/* fall through */
|
|
|
|
default:
|
2007-12-19 01:31:26 +01:00
|
|
|
conf.vif = &sdata->vif;
|
2007-12-19 01:31:27 +01:00
|
|
|
conf.type = sdata->vif.type;
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
conf.mac_addr = dev->dev_addr;
|
|
|
|
res = local->ops->add_interface(local_to_hw(local), &conf);
|
|
|
|
if (res && !local->open_count && local->ops->stop)
|
|
|
|
local->ops->stop(local_to_hw(local));
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
ieee80211_if_config(dev);
|
2007-07-27 15:43:24 +02:00
|
|
|
ieee80211_reset_erp_info(dev);
|
2007-08-28 23:01:55 +02:00
|
|
|
ieee80211_enable_keys(sdata);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
2007-12-19 01:31:27 +01:00
|
|
|
if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
|
2007-09-26 17:53:20 +02:00
|
|
|
!(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
netif_carrier_off(dev);
|
|
|
|
else
|
|
|
|
netif_carrier_on(dev);
|
2007-07-27 15:43:24 +02:00
|
|
|
}
|
2007-05-05 20:45:53 +02:00
|
|
|
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
if (local->open_count == 0) {
|
|
|
|
res = dev_open(local->mdev);
|
|
|
|
WARN_ON(res);
|
|
|
|
tasklet_enable(&local->tx_pending_tasklet);
|
|
|
|
tasklet_enable(&local->tasklet);
|
|
|
|
}
|
|
|
|
|
2007-11-16 02:54:53 +01:00
|
|
|
/*
|
|
|
|
* set_multicast_list will be invoked by the networking core
|
|
|
|
* which will check whether any increments here were done in
|
|
|
|
* error and sync them down to the hardware as filter flags.
|
|
|
|
*/
|
|
|
|
if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
|
|
|
|
atomic_inc(&local->iff_allmultis);
|
|
|
|
|
|
|
|
if (sdata->flags & IEEE80211_SDATA_PROMISC)
|
|
|
|
atomic_inc(&local->iff_promiscs);
|
|
|
|
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
local->open_count++;
|
2008-02-10 14:16:52 +01:00
|
|
|
if (need_hw_reconfig)
|
|
|
|
ieee80211_hw_config(local);
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
netif_start_queue(dev);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
return 0;
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
static int ieee80211_stop(struct net_device *dev)
|
2007-05-05 20:45:53 +02:00
|
|
|
{
|
2008-02-25 16:27:49 +01:00
|
|
|
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
struct ieee80211_local *local = sdata->local;
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
struct ieee80211_if_init_conf conf;
|
2007-12-25 16:00:33 +01:00
|
|
|
struct sta_info *sta;
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
2008-02-25 16:27:49 +01:00
|
|
|
/*
|
|
|
|
* Stop TX on this interface first.
|
|
|
|
*/
|
|
|
|
netif_stop_queue(dev);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
2008-02-25 16:27:49 +01:00
|
|
|
/*
|
|
|
|
* Now delete all active aggregation sessions.
|
|
|
|
*/
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_lock();
|
|
|
|
|
|
|
|
list_for_each_entry_rcu(sta, &local->sta_list, list) {
|
|
|
|
if (sta->sdata == sdata)
|
2008-03-18 23:00:32 +01:00
|
|
|
ieee80211_sta_tear_down_BA_sessions(dev, sta->addr);
|
2007-12-25 16:00:33 +01:00
|
|
|
}
|
|
|
|
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
|
|
|
|
2008-02-25 16:27:49 +01:00
|
|
|
/*
|
|
|
|
* Remove all stations associated with this interface.
|
|
|
|
*
|
|
|
|
* This must be done before calling ops->remove_interface()
|
|
|
|
* because otherwise we can later invoke ops->sta_notify()
|
|
|
|
* whenever the STAs are removed, and that invalidates driver
|
|
|
|
* assumptions about always getting a vif pointer that is valid
|
|
|
|
* (because if we remove a STA after ops->remove_interface()
|
|
|
|
* the driver will have removed the vif info already!)
|
|
|
|
*
|
|
|
|
* We could relax this and only unlink the stations from the
|
|
|
|
* hash table and list but keep them on a per-sdata list that
|
|
|
|
* will be inserted back again when the interface is brought
|
|
|
|
* up again, but I don't currently see a use case for that,
|
|
|
|
* except with WDS which gets a STA entry created when it is
|
|
|
|
* brought up.
|
|
|
|
*/
|
|
|
|
sta_info_flush(local, sdata);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
2007-11-16 02:54:53 +01:00
|
|
|
/*
|
|
|
|
* Don't count this interface for promisc/allmulti while it
|
|
|
|
* is down. dev_mc_unsync() will invoke set_multicast_list
|
|
|
|
* on the master interface which will sync these down to the
|
|
|
|
* hardware as filter flags.
|
|
|
|
*/
|
|
|
|
if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
|
|
|
|
atomic_dec(&local->iff_allmultis);
|
|
|
|
|
|
|
|
if (sdata->flags & IEEE80211_SDATA_PROMISC)
|
|
|
|
atomic_dec(&local->iff_promiscs);
|
|
|
|
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
dev_mc_unsync(local->mdev, dev);
|
|
|
|
|
2007-12-19 02:03:33 +01:00
|
|
|
/* APs need special treatment */
|
2007-12-19 01:31:27 +01:00
|
|
|
if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
|
2007-09-17 07:29:24 +02:00
|
|
|
struct ieee80211_sub_if_data *vlan, *tmp;
|
2007-12-19 02:03:33 +01:00
|
|
|
struct beacon_data *old_beacon = sdata->u.ap.beacon;
|
2007-09-17 07:29:24 +02:00
|
|
|
|
2007-12-19 02:03:33 +01:00
|
|
|
/* remove beacon */
|
|
|
|
rcu_assign_pointer(sdata->u.ap.beacon, NULL);
|
|
|
|
synchronize_rcu();
|
|
|
|
kfree(old_beacon);
|
|
|
|
|
|
|
|
/* down all dependent devices, that is VLANs */
|
2007-09-17 07:29:24 +02:00
|
|
|
list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans,
|
|
|
|
u.vlan.list)
|
|
|
|
dev_close(vlan->dev);
|
|
|
|
WARN_ON(!list_empty(&sdata->u.ap.vlans));
|
|
|
|
}
|
|
|
|
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
local->open_count--;
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-12-19 01:31:27 +01:00
|
|
|
switch (sdata->vif.type) {
|
2007-09-17 07:29:24 +02:00
|
|
|
case IEEE80211_IF_TYPE_VLAN:
|
|
|
|
list_del(&sdata->u.vlan.list);
|
|
|
|
sdata->u.vlan.ap = NULL;
|
|
|
|
/* no need to tell driver */
|
|
|
|
break;
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
case IEEE80211_IF_TYPE_MNTR:
|
2008-01-31 19:48:27 +01:00
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
|
|
|
|
local->cooked_mntrs--;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
local->monitors--;
|
2008-01-31 19:48:23 +01:00
|
|
|
if (local->monitors == 0)
|
2007-11-28 07:57:08 +01:00
|
|
|
local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
|
2008-01-31 19:48:23 +01:00
|
|
|
|
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
|
|
|
|
local->fif_fcsfail--;
|
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
|
|
|
|
local->fif_plcpfail--;
|
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
|
|
|
|
local->fif_control--;
|
|
|
|
if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
|
|
|
|
local->fif_other_bss--;
|
|
|
|
|
|
|
|
netif_tx_lock_bh(local->mdev);
|
|
|
|
ieee80211_configure_filter(local);
|
|
|
|
netif_tx_unlock_bh(local->mdev);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
break;
|
2008-02-23 15:17:18 +01:00
|
|
|
case IEEE80211_IF_TYPE_MESH_POINT:
|
2007-07-27 15:43:23 +02:00
|
|
|
case IEEE80211_IF_TYPE_STA:
|
|
|
|
case IEEE80211_IF_TYPE_IBSS:
|
|
|
|
sdata->u.sta.state = IEEE80211_DISABLED;
|
|
|
|
del_timer_sync(&sdata->u.sta.timer);
|
2007-08-28 23:01:52 +02:00
|
|
|
/*
|
2007-09-18 23:29:21 +02:00
|
|
|
* When we get here, the interface is marked down.
|
|
|
|
* Call synchronize_rcu() to wait for the RX path
|
|
|
|
* should it be using the interface and enqueuing
|
|
|
|
* frames at this very time on another CPU.
|
2007-08-28 23:01:52 +02:00
|
|
|
*/
|
2007-09-18 23:29:21 +02:00
|
|
|
synchronize_rcu();
|
2007-07-27 15:43:23 +02:00
|
|
|
skb_queue_purge(&sdata->u.sta.skb_queue);
|
2007-08-28 23:01:52 +02:00
|
|
|
|
2007-11-22 03:53:21 +01:00
|
|
|
if (local->scan_dev == sdata->dev) {
|
|
|
|
if (!local->ops->hw_scan) {
|
|
|
|
local->sta_sw_scanning = 0;
|
|
|
|
cancel_delayed_work(&local->scan_work);
|
|
|
|
} else
|
|
|
|
local->sta_hw_scanning = 0;
|
2007-07-27 15:43:23 +02:00
|
|
|
}
|
2007-11-22 03:53:21 +01:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
flush_workqueue(local->hw.workqueue);
|
2007-11-22 04:10:22 +01:00
|
|
|
|
|
|
|
sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
|
|
|
|
kfree(sdata->u.sta.extra_ie);
|
|
|
|
sdata->u.sta.extra_ie = NULL;
|
|
|
|
sdata->u.sta.extra_ie_len = 0;
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
/* fall through */
|
|
|
|
default:
|
2007-12-19 01:31:26 +01:00
|
|
|
conf.vif = &sdata->vif;
|
2007-12-19 01:31:27 +01:00
|
|
|
conf.type = sdata->vif.type;
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
conf.mac_addr = dev->dev_addr;
|
2007-08-28 23:01:55 +02:00
|
|
|
/* disable all keys for as long as this netdev is down */
|
|
|
|
ieee80211_disable_keys(sdata);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
local->ops->remove_interface(local_to_hw(local), &conf);
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
if (local->open_count == 0) {
|
|
|
|
if (netif_running(local->mdev))
|
|
|
|
dev_close(local->mdev);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
if (local->ops->stop)
|
|
|
|
local->ops->stop(local_to_hw(local));
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
2008-01-07 19:45:24 +01:00
|
|
|
ieee80211_led_radio(local, 0);
|
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
tasklet_disable(&local->tx_pending_tasklet);
|
|
|
|
tasklet_disable(&local->tasklet);
|
|
|
|
}
|
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-01-28 13:07:17 +01:00
|
|
|
int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
struct sta_info *sta;
|
|
|
|
struct ieee80211_sub_if_data *sdata;
|
|
|
|
u16 start_seq_num = 0;
|
|
|
|
u8 *state;
|
|
|
|
int ret;
|
|
|
|
DECLARE_MAC_BUF(mac);
|
|
|
|
|
|
|
|
if (tid >= STA_TID_NUM)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
#ifdef CONFIG_MAC80211_HT_DEBUG
|
|
|
|
printk(KERN_DEBUG "Open BA session requested for %s tid %u\n",
|
|
|
|
print_mac(mac, ra), tid);
|
|
|
|
#endif /* CONFIG_MAC80211_HT_DEBUG */
|
|
|
|
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_lock();
|
|
|
|
|
2008-01-28 13:07:17 +01:00
|
|
|
sta = sta_info_get(local, ra);
|
|
|
|
if (!sta) {
|
|
|
|
printk(KERN_DEBUG "Could not find the station\n");
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
|
|
|
|
|
|
|
|
/* we have tried too many times, receiver does not want A-MPDU */
|
|
|
|
if (sta->ampdu_mlme.tid_tx[tid].addba_req_num > HT_AGG_MAX_RETRIES) {
|
|
|
|
ret = -EBUSY;
|
|
|
|
goto start_ba_exit;
|
|
|
|
}
|
|
|
|
|
|
|
|
state = &sta->ampdu_mlme.tid_tx[tid].state;
|
|
|
|
/* check if the TID is not in aggregation flow already */
|
|
|
|
if (*state != HT_AGG_STATE_IDLE) {
|
|
|
|
#ifdef CONFIG_MAC80211_HT_DEBUG
|
|
|
|
printk(KERN_DEBUG "BA request denied - session is not "
|
|
|
|
"idle on tid %u\n", tid);
|
|
|
|
#endif /* CONFIG_MAC80211_HT_DEBUG */
|
|
|
|
ret = -EAGAIN;
|
|
|
|
goto start_ba_exit;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ensure that TX flow won't interrupt us
|
|
|
|
* until the end of the call to requeue function */
|
|
|
|
spin_lock_bh(&local->mdev->queue_lock);
|
|
|
|
|
|
|
|
/* create a new queue for this aggregation */
|
2008-01-28 13:07:18 +01:00
|
|
|
ret = ieee80211_ht_agg_queue_add(local, sta, tid);
|
2008-01-28 13:07:17 +01:00
|
|
|
|
|
|
|
/* case no queue is available to aggregation
|
|
|
|
* don't switch to aggregation */
|
|
|
|
if (ret) {
|
|
|
|
#ifdef CONFIG_MAC80211_HT_DEBUG
|
|
|
|
printk(KERN_DEBUG "BA request denied - no queue available for"
|
|
|
|
" tid %d\n", tid);
|
|
|
|
#endif /* CONFIG_MAC80211_HT_DEBUG */
|
|
|
|
spin_unlock_bh(&local->mdev->queue_lock);
|
|
|
|
goto start_ba_exit;
|
|
|
|
}
|
2008-02-25 16:27:46 +01:00
|
|
|
sdata = sta->sdata;
|
2008-01-28 13:07:17 +01:00
|
|
|
|
|
|
|
/* Ok, the Addba frame hasn't been sent yet, but if the driver calls the
|
|
|
|
* call back right away, it must see that the flow has begun */
|
|
|
|
*state |= HT_ADDBA_REQUESTED_MSK;
|
|
|
|
|
|
|
|
if (local->ops->ampdu_action)
|
|
|
|
ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
|
|
|
|
ra, tid, &start_seq_num);
|
|
|
|
|
|
|
|
if (ret) {
|
|
|
|
/* No need to requeue the packets in the agg queue, since we
|
|
|
|
* held the tx lock: no packet could be enqueued to the newly
|
|
|
|
* allocated queue */
|
2008-01-28 13:07:18 +01:00
|
|
|
ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
|
2008-01-28 13:07:17 +01:00
|
|
|
#ifdef CONFIG_MAC80211_HT_DEBUG
|
|
|
|
printk(KERN_DEBUG "BA request denied - HW or queue unavailable"
|
|
|
|
" for tid %d\n", tid);
|
|
|
|
#endif /* CONFIG_MAC80211_HT_DEBUG */
|
|
|
|
spin_unlock_bh(&local->mdev->queue_lock);
|
|
|
|
*state = HT_AGG_STATE_IDLE;
|
|
|
|
goto start_ba_exit;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Will put all the packets in the new SW queue */
|
2008-01-28 13:07:18 +01:00
|
|
|
ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
|
2008-01-28 13:07:17 +01:00
|
|
|
spin_unlock_bh(&local->mdev->queue_lock);
|
|
|
|
|
|
|
|
/* We have most probably almost emptied the legacy queue */
|
|
|
|
/* ieee80211_wake_queue(local_to_hw(local), ieee802_1d_to_ac[tid]); */
|
|
|
|
|
|
|
|
/* send an addBA request */
|
|
|
|
sta->ampdu_mlme.dialog_token_allocator++;
|
|
|
|
sta->ampdu_mlme.tid_tx[tid].dialog_token =
|
|
|
|
sta->ampdu_mlme.dialog_token_allocator;
|
|
|
|
sta->ampdu_mlme.tid_tx[tid].ssn = start_seq_num;
|
|
|
|
|
2008-02-25 16:27:46 +01:00
|
|
|
ieee80211_send_addba_request(sta->sdata->dev, ra, tid,
|
2008-01-28 13:07:17 +01:00
|
|
|
sta->ampdu_mlme.tid_tx[tid].dialog_token,
|
|
|
|
sta->ampdu_mlme.tid_tx[tid].ssn,
|
|
|
|
0x40, 5000);
|
|
|
|
|
|
|
|
/* activate the timer for the recipient's addBA response */
|
|
|
|
sta->ampdu_mlme.tid_tx[tid].addba_resp_timer.expires =
|
|
|
|
jiffies + ADDBA_RESP_INTERVAL;
|
|
|
|
add_timer(&sta->ampdu_mlme.tid_tx[tid].addba_resp_timer);
|
|
|
|
printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
|
|
|
|
|
|
|
|
start_ba_exit:
|
|
|
|
spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
|
|
|
|
|
|
|
|
int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
|
|
|
|
u8 *ra, u16 tid,
|
|
|
|
enum ieee80211_back_parties initiator)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
struct sta_info *sta;
|
|
|
|
u8 *state;
|
|
|
|
int ret = 0;
|
|
|
|
DECLARE_MAC_BUF(mac);
|
|
|
|
|
|
|
|
if (tid >= STA_TID_NUM)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
#ifdef CONFIG_MAC80211_HT_DEBUG
|
|
|
|
printk(KERN_DEBUG "Stop a BA session requested for %s tid %u\n",
|
|
|
|
print_mac(mac, ra), tid);
|
|
|
|
#endif /* CONFIG_MAC80211_HT_DEBUG */
|
|
|
|
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_lock();
|
2008-01-28 13:07:17 +01:00
|
|
|
sta = sta_info_get(local, ra);
|
2008-02-25 16:27:46 +01:00
|
|
|
if (!sta) {
|
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
return -ENOENT;
|
2008-02-25 16:27:46 +01:00
|
|
|
}
|
2008-01-28 13:07:17 +01:00
|
|
|
|
|
|
|
/* check if the TID is in aggregation */
|
|
|
|
state = &sta->ampdu_mlme.tid_tx[tid].state;
|
|
|
|
spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
|
|
|
|
|
|
|
|
if (*state != HT_AGG_STATE_OPERATIONAL) {
|
|
|
|
#ifdef CONFIG_MAC80211_HT_DEBUG
|
|
|
|
printk(KERN_DEBUG "Try to stop Tx aggregation on"
|
|
|
|
" non active TID\n");
|
|
|
|
#endif /* CONFIG_MAC80211_HT_DEBUG */
|
|
|
|
ret = -ENOENT;
|
|
|
|
goto stop_BA_exit;
|
|
|
|
}
|
|
|
|
|
|
|
|
ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]);
|
|
|
|
|
|
|
|
*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
|
|
|
|
(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
|
|
|
|
|
|
|
|
if (local->ops->ampdu_action)
|
|
|
|
ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP,
|
|
|
|
ra, tid, NULL);
|
|
|
|
|
|
|
|
/* case HW denied going back to legacy */
|
|
|
|
if (ret) {
|
|
|
|
WARN_ON(ret != -EBUSY);
|
|
|
|
*state = HT_AGG_STATE_OPERATIONAL;
|
|
|
|
ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
|
|
|
|
goto stop_BA_exit;
|
|
|
|
}
|
|
|
|
|
|
|
|
stop_BA_exit:
|
|
|
|
spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_stop_tx_ba_session);
|
|
|
|
|
|
|
|
void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
struct sta_info *sta;
|
|
|
|
u8 *state;
|
|
|
|
DECLARE_MAC_BUF(mac);
|
|
|
|
|
|
|
|
if (tid >= STA_TID_NUM) {
|
|
|
|
printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
|
|
|
|
tid, STA_TID_NUM);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_lock();
|
2008-01-28 13:07:17 +01:00
|
|
|
sta = sta_info_get(local, ra);
|
|
|
|
if (!sta) {
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
printk(KERN_DEBUG "Could not find station: %s\n",
|
|
|
|
print_mac(mac, ra));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
state = &sta->ampdu_mlme.tid_tx[tid].state;
|
|
|
|
spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
|
|
|
|
|
|
|
|
if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
|
|
|
|
printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
|
|
|
|
*state);
|
|
|
|
spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK);
|
|
|
|
|
|
|
|
*state |= HT_ADDBA_DRV_READY_MSK;
|
|
|
|
|
|
|
|
if (*state == HT_AGG_STATE_OPERATIONAL) {
|
|
|
|
printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
|
|
|
|
ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
|
|
|
|
}
|
|
|
|
spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_start_tx_ba_cb);
|
|
|
|
|
|
|
|
void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
struct sta_info *sta;
|
|
|
|
u8 *state;
|
|
|
|
int agg_queue;
|
|
|
|
DECLARE_MAC_BUF(mac);
|
|
|
|
|
|
|
|
if (tid >= STA_TID_NUM) {
|
|
|
|
printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
|
|
|
|
tid, STA_TID_NUM);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
printk(KERN_DEBUG "Stop a BA session requested on DA %s tid %d\n",
|
|
|
|
print_mac(mac, ra), tid);
|
|
|
|
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_lock();
|
2008-01-28 13:07:17 +01:00
|
|
|
sta = sta_info_get(local, ra);
|
|
|
|
if (!sta) {
|
|
|
|
printk(KERN_DEBUG "Could not find station: %s\n",
|
|
|
|
print_mac(mac, ra));
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
state = &sta->ampdu_mlme.tid_tx[tid].state;
|
|
|
|
|
|
|
|
spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
|
|
|
|
if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) {
|
|
|
|
printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n");
|
|
|
|
spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (*state & HT_AGG_STATE_INITIATOR_MSK)
|
2008-02-25 16:27:46 +01:00
|
|
|
ieee80211_send_delba(sta->sdata->dev, ra, tid,
|
2008-01-28 13:07:17 +01:00
|
|
|
WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
|
|
|
|
|
|
|
|
agg_queue = sta->tid_to_tx_q[tid];
|
|
|
|
|
|
|
|
/* avoid ordering issues: we are the only one that can modify
|
|
|
|
* the content of the qdiscs */
|
|
|
|
spin_lock_bh(&local->mdev->queue_lock);
|
|
|
|
/* remove the queue for this aggregation */
|
2008-01-28 13:07:18 +01:00
|
|
|
ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
|
2008-01-28 13:07:17 +01:00
|
|
|
spin_unlock_bh(&local->mdev->queue_lock);
|
|
|
|
|
|
|
|
/* we just requeued the all the frames that were in the removed
|
|
|
|
* queue, and since we might miss a softirq we do netif_schedule.
|
|
|
|
* ieee80211_wake_queue is not used here as this queue is not
|
|
|
|
* necessarily stopped */
|
|
|
|
netif_schedule(local->mdev);
|
|
|
|
*state = HT_AGG_STATE_IDLE;
|
|
|
|
sta->ampdu_mlme.tid_tx[tid].addba_req_num = 0;
|
|
|
|
spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
|
|
|
|
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-01-28 13:07:17 +01:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb);
|
|
|
|
|
|
|
|
void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
|
|
|
|
const u8 *ra, u16 tid)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
struct ieee80211_ra_tid *ra_tid;
|
|
|
|
struct sk_buff *skb = dev_alloc_skb(0);
|
|
|
|
|
|
|
|
if (unlikely(!skb)) {
|
|
|
|
if (net_ratelimit())
|
|
|
|
printk(KERN_WARNING "%s: Not enough memory, "
|
|
|
|
"dropping start BA session", skb->dev->name);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
|
|
|
|
memcpy(&ra_tid->ra, ra, ETH_ALEN);
|
|
|
|
ra_tid->tid = tid;
|
|
|
|
|
|
|
|
skb->pkt_type = IEEE80211_ADDBA_MSG;
|
|
|
|
skb_queue_tail(&local->skb_queue, skb);
|
|
|
|
tasklet_schedule(&local->tasklet);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe);
|
|
|
|
|
|
|
|
void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
|
|
|
|
const u8 *ra, u16 tid)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
struct ieee80211_ra_tid *ra_tid;
|
|
|
|
struct sk_buff *skb = dev_alloc_skb(0);
|
|
|
|
|
|
|
|
if (unlikely(!skb)) {
|
|
|
|
if (net_ratelimit())
|
|
|
|
printk(KERN_WARNING "%s: Not enough memory, "
|
|
|
|
"dropping stop BA session", skb->dev->name);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
|
|
|
|
memcpy(&ra_tid->ra, ra, ETH_ALEN);
|
|
|
|
ra_tid->tid = tid;
|
|
|
|
|
|
|
|
skb->pkt_type = IEEE80211_DELBA_MSG;
|
|
|
|
skb_queue_tail(&local->skb_queue, skb);
|
|
|
|
tasklet_schedule(&local->tasklet);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe);
|
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
static void ieee80211_set_multicast_list(struct net_device *dev)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
|
|
|
|
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
int allmulti, promisc, sdata_allmulti, sdata_promisc;
|
2007-05-05 20:45:53 +02:00
|
|
|
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
allmulti = !!(dev->flags & IFF_ALLMULTI);
|
|
|
|
promisc = !!(dev->flags & IFF_PROMISC);
|
2007-11-16 01:49:11 +01:00
|
|
|
sdata_allmulti = !!(sdata->flags & IEEE80211_SDATA_ALLMULTI);
|
|
|
|
sdata_promisc = !!(sdata->flags & IEEE80211_SDATA_PROMISC);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
|
|
|
if (allmulti != sdata_allmulti) {
|
|
|
|
if (dev->flags & IFF_ALLMULTI)
|
2007-09-26 15:19:47 +02:00
|
|
|
atomic_inc(&local->iff_allmultis);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
else
|
2007-09-26 15:19:47 +02:00
|
|
|
atomic_dec(&local->iff_allmultis);
|
2007-08-28 23:01:54 +02:00
|
|
|
sdata->flags ^= IEEE80211_SDATA_ALLMULTI;
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
|
|
|
if (promisc != sdata_promisc) {
|
|
|
|
if (dev->flags & IFF_PROMISC)
|
2007-09-26 15:19:47 +02:00
|
|
|
atomic_inc(&local->iff_promiscs);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
else
|
2007-09-26 15:19:47 +02:00
|
|
|
atomic_dec(&local->iff_promiscs);
|
2007-08-28 23:01:54 +02:00
|
|
|
sdata->flags ^= IEEE80211_SDATA_PROMISC;
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
|
|
|
|
dev_mc_sync(local->mdev, dev);
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
|
2007-10-09 10:40:57 +02:00
|
|
|
static const struct header_ops ieee80211_header_ops = {
|
|
|
|
.create = eth_header,
|
|
|
|
.parse = header_parse_80211,
|
|
|
|
.rebuild = eth_rebuild_header,
|
|
|
|
.cache = eth_header_cache,
|
|
|
|
.cache_update = eth_header_cache_update,
|
|
|
|
};
|
|
|
|
|
2007-09-28 14:02:09 +02:00
|
|
|
/* Must not be called for mdev */
|
2007-07-27 15:43:23 +02:00
|
|
|
void ieee80211_if_setup(struct net_device *dev)
|
2007-05-05 20:45:53 +02:00
|
|
|
{
|
2007-07-27 15:43:23 +02:00
|
|
|
ether_setup(dev);
|
|
|
|
dev->hard_start_xmit = ieee80211_subif_start_xmit;
|
|
|
|
dev->wireless_handlers = &ieee80211_iw_handler_def;
|
|
|
|
dev->set_multicast_list = ieee80211_set_multicast_list;
|
|
|
|
dev->change_mtu = ieee80211_change_mtu;
|
|
|
|
dev->open = ieee80211_open;
|
|
|
|
dev->stop = ieee80211_stop;
|
|
|
|
dev->destructor = ieee80211_if_free;
|
|
|
|
}
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
/* everything else */
|
|
|
|
|
|
|
|
static int __ieee80211_if_config(struct net_device *dev,
|
|
|
|
struct sk_buff *beacon,
|
|
|
|
struct ieee80211_tx_control *control)
|
|
|
|
{
|
|
|
|
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
|
|
|
|
struct ieee80211_if_conf conf;
|
|
|
|
|
|
|
|
if (!local->ops->config_interface || !netif_running(dev))
|
2007-05-05 20:45:53 +02:00
|
|
|
return 0;
|
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
memset(&conf, 0, sizeof(conf));
|
2007-12-19 01:31:27 +01:00
|
|
|
conf.type = sdata->vif.type;
|
|
|
|
if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
|
|
|
|
sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
conf.bssid = sdata->u.sta.bssid;
|
2007-07-27 15:43:23 +02:00
|
|
|
conf.ssid = sdata->u.sta.ssid;
|
|
|
|
conf.ssid_len = sdata->u.sta.ssid_len;
|
2008-02-23 15:17:19 +01:00
|
|
|
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
|
2008-02-23 15:17:18 +01:00
|
|
|
conf.beacon = beacon;
|
|
|
|
ieee80211_start_mesh(dev);
|
2007-12-19 01:31:27 +01:00
|
|
|
} else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
|
2007-07-27 15:43:23 +02:00
|
|
|
conf.ssid = sdata->u.ap.ssid;
|
|
|
|
conf.ssid_len = sdata->u.ap.ssid_len;
|
|
|
|
conf.beacon = beacon;
|
|
|
|
conf.beacon_control = control;
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
2007-07-27 15:43:23 +02:00
|
|
|
return local->ops->config_interface(local_to_hw(local),
|
2007-12-19 01:31:26 +01:00
|
|
|
&sdata->vif, &conf);
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
int ieee80211_if_config(struct net_device *dev)
|
|
|
|
{
|
2008-02-23 15:17:18 +01:00
|
|
|
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
|
|
|
|
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT &&
|
|
|
|
(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
|
|
|
|
return ieee80211_if_config_beacon(dev);
|
2007-07-27 15:43:23 +02:00
|
|
|
return __ieee80211_if_config(dev, NULL, NULL);
|
|
|
|
}
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
int ieee80211_if_config_beacon(struct net_device *dev)
|
2007-05-05 20:45:53 +02:00
|
|
|
{
|
|
|
|
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
|
2007-07-27 15:43:23 +02:00
|
|
|
struct ieee80211_tx_control control;
|
2007-12-19 01:31:26 +01:00
|
|
|
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
2007-07-27 15:43:23 +02:00
|
|
|
struct sk_buff *skb;
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
|
2007-05-05 20:45:53 +02:00
|
|
|
return 0;
|
2007-12-19 01:31:26 +01:00
|
|
|
skb = ieee80211_beacon_get(local_to_hw(local), &sdata->vif,
|
|
|
|
&control);
|
2007-07-27 15:43:23 +02:00
|
|
|
if (!skb)
|
|
|
|
return -ENOMEM;
|
|
|
|
return __ieee80211_if_config(dev, skb, &control);
|
|
|
|
}
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
int ieee80211_hw_config(struct ieee80211_local *local)
|
|
|
|
{
|
|
|
|
struct ieee80211_channel *chan;
|
|
|
|
int ret = 0;
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2008-01-24 19:38:38 +01:00
|
|
|
if (local->sta_sw_scanning)
|
2007-07-27 15:43:23 +02:00
|
|
|
chan = local->scan_channel;
|
2008-01-24 19:38:38 +01:00
|
|
|
else
|
2007-07-27 15:43:23 +02:00
|
|
|
chan = local->oper_channel;
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2008-01-24 19:38:38 +01:00
|
|
|
local->hw.conf.channel = chan;
|
|
|
|
|
|
|
|
if (!local->hw.conf.power_level)
|
|
|
|
local->hw.conf.power_level = chan->max_power;
|
|
|
|
else
|
|
|
|
local->hw.conf.power_level = min(chan->max_power,
|
|
|
|
local->hw.conf.power_level);
|
|
|
|
|
|
|
|
local->hw.conf.max_antenna_gain = chan->max_antenna_gain;
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
|
2008-01-24 19:38:38 +01:00
|
|
|
printk(KERN_DEBUG "%s: HW CONFIG: freq=%d\n",
|
|
|
|
wiphy_name(local->hw.wiphy), chan->center_freq);
|
|
|
|
#endif
|
2007-07-27 15:43:23 +02:00
|
|
|
|
2007-09-24 18:41:49 +02:00
|
|
|
if (local->open_count)
|
2007-07-27 15:43:23 +02:00
|
|
|
ret = local->ops->config(local_to_hw(local), &local->hw.conf);
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-07-27 15:43:23 +02:00
|
|
|
return ret;
|
|
|
|
}
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-11-26 15:14:34 +01:00
|
|
|
/**
|
|
|
|
* ieee80211_hw_config_ht should be used only after legacy configuration
|
|
|
|
* has been determined, as ht configuration depends upon the hardware's
|
|
|
|
* HT abilities for a _specific_ band.
|
|
|
|
*/
|
|
|
|
int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
|
|
|
|
struct ieee80211_ht_info *req_ht_cap,
|
|
|
|
struct ieee80211_ht_bss_info *req_bss_cap)
|
|
|
|
{
|
|
|
|
struct ieee80211_conf *conf = &local->hw.conf;
|
2008-01-24 19:38:38 +01:00
|
|
|
struct ieee80211_supported_band *sband;
|
2007-11-26 15:14:34 +01:00
|
|
|
int i;
|
|
|
|
|
2008-01-24 19:38:38 +01:00
|
|
|
sband = local->hw.wiphy->bands[conf->channel->band];
|
|
|
|
|
2007-11-26 15:14:34 +01:00
|
|
|
/* HT is not supported */
|
2008-01-24 19:38:38 +01:00
|
|
|
if (!sband->ht_info.ht_supported) {
|
2007-11-26 15:14:34 +01:00
|
|
|
conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* disable HT */
|
|
|
|
if (!enable_ht) {
|
|
|
|
conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
|
|
|
|
} else {
|
|
|
|
conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE;
|
2008-01-24 19:38:38 +01:00
|
|
|
conf->ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap;
|
2007-11-26 15:14:34 +01:00
|
|
|
conf->ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS);
|
|
|
|
conf->ht_conf.cap |=
|
2008-01-24 19:38:38 +01:00
|
|
|
sband->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS;
|
2007-11-26 15:14:34 +01:00
|
|
|
conf->ht_bss_conf.primary_channel =
|
|
|
|
req_bss_cap->primary_channel;
|
|
|
|
conf->ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
|
|
|
|
conf->ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;
|
|
|
|
for (i = 0; i < SUPP_MCS_SET_LEN; i++)
|
|
|
|
conf->ht_conf.supp_mcs_set[i] =
|
2008-01-24 19:38:38 +01:00
|
|
|
sband->ht_info.supp_mcs_set[i] &
|
2007-11-26 15:14:34 +01:00
|
|
|
req_ht_cap->supp_mcs_set[i];
|
|
|
|
|
|
|
|
/* In STA mode, this gives us indication
|
|
|
|
* to the AP's mode of operation */
|
|
|
|
conf->ht_conf.ht_supported = 1;
|
|
|
|
conf->ht_conf.ampdu_factor = req_ht_cap->ampdu_factor;
|
|
|
|
conf->ht_conf.ampdu_density = req_ht_cap->ampdu_density;
|
|
|
|
}
|
|
|
|
|
|
|
|
local->ops->conf_ht(local_to_hw(local), &local->hw.conf);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-12-28 14:32:58 +01:00
|
|
|
void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
|
|
|
|
u32 changed)
|
2007-07-27 15:43:24 +02:00
|
|
|
{
|
2007-12-28 14:32:58 +01:00
|
|
|
struct ieee80211_local *local = sdata->local;
|
|
|
|
|
|
|
|
if (!changed)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (local->ops->bss_info_changed)
|
|
|
|
local->ops->bss_info_changed(local_to_hw(local),
|
|
|
|
&sdata->vif,
|
|
|
|
&sdata->bss_conf,
|
|
|
|
changed);
|
2007-07-27 15:43:24 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
void ieee80211_reset_erp_info(struct net_device *dev)
|
|
|
|
{
|
|
|
|
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
|
2007-12-28 14:32:58 +01:00
|
|
|
sdata->bss_conf.use_cts_prot = 0;
|
|
|
|
sdata->bss_conf.use_short_preamble = 0;
|
|
|
|
ieee80211_bss_info_change_notify(sdata,
|
|
|
|
BSS_CHANGED_ERP_CTS_PROT |
|
|
|
|
BSS_CHANGED_ERP_PREAMBLE);
|
2007-07-27 15:43:24 +02:00
|
|
|
}
|
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
|
|
|
|
struct sk_buff *skb,
|
|
|
|
struct ieee80211_tx_status *status)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
struct ieee80211_tx_status *saved;
|
|
|
|
int tmp;
|
|
|
|
|
|
|
|
skb->dev = local->mdev;
|
|
|
|
saved = kmalloc(sizeof(struct ieee80211_tx_status), GFP_ATOMIC);
|
|
|
|
if (unlikely(!saved)) {
|
|
|
|
if (net_ratelimit())
|
|
|
|
printk(KERN_WARNING "%s: Not enough memory, "
|
|
|
|
"dropping tx status", skb->dev->name);
|
|
|
|
/* should be dev_kfree_skb_irq, but due to this function being
|
|
|
|
* named _irqsafe instead of just _irq we can't be sure that
|
|
|
|
* people won't call it from non-irq contexts */
|
|
|
|
dev_kfree_skb_any(skb);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
memcpy(saved, status, sizeof(struct ieee80211_tx_status));
|
|
|
|
/* copy pointer to saved status into skb->cb for use by tasklet */
|
|
|
|
memcpy(skb->cb, &saved, sizeof(saved));
|
|
|
|
|
|
|
|
skb->pkt_type = IEEE80211_TX_STATUS_MSG;
|
|
|
|
skb_queue_tail(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS ?
|
|
|
|
&local->skb_queue : &local->skb_queue_unreliable, skb);
|
|
|
|
tmp = skb_queue_len(&local->skb_queue) +
|
|
|
|
skb_queue_len(&local->skb_queue_unreliable);
|
|
|
|
while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT &&
|
|
|
|
(skb = skb_dequeue(&local->skb_queue_unreliable))) {
|
|
|
|
memcpy(&saved, skb->cb, sizeof(saved));
|
|
|
|
kfree(saved);
|
|
|
|
dev_kfree_skb_irq(skb);
|
|
|
|
tmp--;
|
|
|
|
I802_DEBUG_INC(local->tx_status_drop);
|
|
|
|
}
|
|
|
|
tasklet_schedule(&local->tasklet);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_tx_status_irqsafe);
|
|
|
|
|
|
|
|
static void ieee80211_tasklet_handler(unsigned long data)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = (struct ieee80211_local *) data;
|
|
|
|
struct sk_buff *skb;
|
|
|
|
struct ieee80211_rx_status rx_status;
|
|
|
|
struct ieee80211_tx_status *tx_status;
|
2008-01-28 13:07:17 +01:00
|
|
|
struct ieee80211_ra_tid *ra_tid;
|
2007-05-05 20:45:53 +02:00
|
|
|
|
|
|
|
while ((skb = skb_dequeue(&local->skb_queue)) ||
|
|
|
|
(skb = skb_dequeue(&local->skb_queue_unreliable))) {
|
|
|
|
switch (skb->pkt_type) {
|
|
|
|
case IEEE80211_RX_MSG:
|
|
|
|
/* status is in skb->cb */
|
|
|
|
memcpy(&rx_status, skb->cb, sizeof(rx_status));
|
2007-12-19 01:31:27 +01:00
|
|
|
/* Clear skb->pkt_type in order to not confuse kernel
|
2007-05-05 20:45:53 +02:00
|
|
|
* netstack. */
|
|
|
|
skb->pkt_type = 0;
|
|
|
|
__ieee80211_rx(local_to_hw(local), skb, &rx_status);
|
|
|
|
break;
|
|
|
|
case IEEE80211_TX_STATUS_MSG:
|
|
|
|
/* get pointer to saved status out of skb->cb */
|
|
|
|
memcpy(&tx_status, skb->cb, sizeof(tx_status));
|
|
|
|
skb->pkt_type = 0;
|
|
|
|
ieee80211_tx_status(local_to_hw(local),
|
|
|
|
skb, tx_status);
|
|
|
|
kfree(tx_status);
|
|
|
|
break;
|
2008-01-28 13:07:17 +01:00
|
|
|
case IEEE80211_DELBA_MSG:
|
|
|
|
ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
|
|
|
|
ieee80211_stop_tx_ba_cb(local_to_hw(local),
|
|
|
|
ra_tid->ra, ra_tid->tid);
|
|
|
|
dev_kfree_skb(skb);
|
|
|
|
break;
|
|
|
|
case IEEE80211_ADDBA_MSG:
|
|
|
|
ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
|
|
|
|
ieee80211_start_tx_ba_cb(local_to_hw(local),
|
|
|
|
ra_tid->ra, ra_tid->tid);
|
|
|
|
dev_kfree_skb(skb);
|
|
|
|
break ;
|
2007-05-05 20:45:53 +02:00
|
|
|
default: /* should never get here! */
|
|
|
|
printk(KERN_ERR "%s: Unknown message type (%d)\n",
|
2007-09-18 23:29:20 +02:00
|
|
|
wiphy_name(local->hw.wiphy), skb->pkt_type);
|
2007-05-05 20:45:53 +02:00
|
|
|
dev_kfree_skb(skb);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to
|
|
|
|
* make a prepared TX frame (one that has been given to hw) to look like brand
|
|
|
|
* new IEEE 802.11 frame that is ready to go through TX processing again.
|
|
|
|
* Also, tx_packet_data in cb is restored from tx_control. */
|
|
|
|
static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
|
|
|
|
struct ieee80211_key *key,
|
|
|
|
struct sk_buff *skb,
|
|
|
|
struct ieee80211_tx_control *control)
|
|
|
|
{
|
|
|
|
int hdrlen, iv_len, mic_len;
|
|
|
|
struct ieee80211_tx_packet_data *pkt_data;
|
|
|
|
|
|
|
|
pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
|
2007-12-19 01:31:26 +01:00
|
|
|
pkt_data->ifindex = vif_to_sdata(control->vif)->dev->ifindex;
|
2007-08-28 23:01:54 +02:00
|
|
|
pkt_data->flags = 0;
|
|
|
|
if (control->flags & IEEE80211_TXCTL_REQ_TX_STATUS)
|
|
|
|
pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
|
|
|
|
if (control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)
|
|
|
|
pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
|
|
|
|
if (control->flags & IEEE80211_TXCTL_REQUEUE)
|
|
|
|
pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
|
2007-12-19 01:31:23 +01:00
|
|
|
if (control->flags & IEEE80211_TXCTL_EAPOL_FRAME)
|
|
|
|
pkt_data->flags |= IEEE80211_TXPD_EAPOL_FRAME;
|
2007-05-05 20:45:53 +02:00
|
|
|
pkt_data->queue = control->queue;
|
|
|
|
|
|
|
|
hdrlen = ieee80211_get_hdrlen_from_skb(skb);
|
|
|
|
|
|
|
|
if (!key)
|
|
|
|
goto no_key;
|
|
|
|
|
2007-08-28 23:01:54 +02:00
|
|
|
switch (key->conf.alg) {
|
2007-05-05 20:45:53 +02:00
|
|
|
case ALG_WEP:
|
|
|
|
iv_len = WEP_IV_LEN;
|
|
|
|
mic_len = WEP_ICV_LEN;
|
|
|
|
break;
|
|
|
|
case ALG_TKIP:
|
|
|
|
iv_len = TKIP_IV_LEN;
|
|
|
|
mic_len = TKIP_ICV_LEN;
|
|
|
|
break;
|
|
|
|
case ALG_CCMP:
|
|
|
|
iv_len = CCMP_HDR_LEN;
|
|
|
|
mic_len = CCMP_MIC_LEN;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
goto no_key;
|
|
|
|
}
|
|
|
|
|
2007-08-28 23:01:54 +02:00
|
|
|
if (skb->len >= mic_len &&
|
2007-08-28 23:01:55 +02:00
|
|
|
!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
|
2007-05-05 20:45:53 +02:00
|
|
|
skb_trim(skb, skb->len - mic_len);
|
|
|
|
if (skb->len >= iv_len && skb->len > hdrlen) {
|
|
|
|
memmove(skb->data + iv_len, skb->data, hdrlen);
|
|
|
|
skb_pull(skb, iv_len);
|
|
|
|
}
|
|
|
|
|
|
|
|
no_key:
|
|
|
|
{
|
|
|
|
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
|
|
|
|
u16 fc = le16_to_cpu(hdr->frame_control);
|
|
|
|
if ((fc & 0x8C) == 0x88) /* QoS Control Field */ {
|
|
|
|
fc &= ~IEEE80211_STYPE_QOS_DATA;
|
|
|
|
hdr->frame_control = cpu_to_le16(fc);
|
|
|
|
memmove(skb->data + 2, skb->data, hdrlen - 2);
|
|
|
|
skb_pull(skb, 2);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-02-20 23:59:33 +01:00
|
|
|
static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
|
|
|
|
struct sta_info *sta,
|
|
|
|
struct sk_buff *skb,
|
|
|
|
struct ieee80211_tx_status *status)
|
|
|
|
{
|
|
|
|
sta->tx_filtered_count++;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Clear the TX filter mask for this STA when sending the next
|
|
|
|
* packet. If the STA went to power save mode, this will happen
|
|
|
|
* happen when it wakes up for the next time.
|
|
|
|
*/
|
|
|
|
sta->flags |= WLAN_STA_CLEAR_PS_FILT;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This code races in the following way:
|
|
|
|
*
|
|
|
|
* (1) STA sends frame indicating it will go to sleep and does so
|
|
|
|
* (2) hardware/firmware adds STA to filter list, passes frame up
|
|
|
|
* (3) hardware/firmware processes TX fifo and suppresses a frame
|
|
|
|
* (4) we get TX status before having processed the frame and
|
|
|
|
* knowing that the STA has gone to sleep.
|
|
|
|
*
|
|
|
|
* This is actually quite unlikely even when both those events are
|
|
|
|
* processed from interrupts coming in quickly after one another or
|
|
|
|
* even at the same time because we queue both TX status events and
|
|
|
|
* RX frames to be processed by a tasklet and process them in the
|
|
|
|
* same order that they were received or TX status last. Hence, there
|
|
|
|
* is no race as long as the frame RX is processed before the next TX
|
|
|
|
* status, which drivers can ensure, see below.
|
|
|
|
*
|
|
|
|
* Note that this can only happen if the hardware or firmware can
|
|
|
|
* actually add STAs to the filter list, if this is done by the
|
|
|
|
* driver in response to set_tim() (which will only reduce the race
|
|
|
|
* this whole filtering tries to solve, not completely solve it)
|
|
|
|
* this situation cannot happen.
|
|
|
|
*
|
|
|
|
* To completely solve this race drivers need to make sure that they
|
|
|
|
* (a) don't mix the irq-safe/not irq-safe TX status/RX processing
|
|
|
|
* functions and
|
|
|
|
* (b) always process RX events before TX status events if ordering
|
|
|
|
* can be unknown, for example with different interrupt status
|
|
|
|
* bits.
|
|
|
|
*/
|
|
|
|
if (sta->flags & WLAN_STA_PS &&
|
|
|
|
skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) {
|
|
|
|
ieee80211_remove_tx_extra(local, sta->key, skb,
|
|
|
|
&status->control);
|
|
|
|
skb_queue_tail(&sta->tx_filtered, skb);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(sta->flags & WLAN_STA_PS) &&
|
|
|
|
!(status->control.flags & IEEE80211_TXCTL_REQUEUE)) {
|
|
|
|
/* Software retry the packet once */
|
|
|
|
status->control.flags |= IEEE80211_TXCTL_REQUEUE;
|
|
|
|
ieee80211_remove_tx_extra(local, sta->key, skb,
|
|
|
|
&status->control);
|
|
|
|
dev_queue_xmit(skb);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (net_ratelimit())
|
|
|
|
printk(KERN_DEBUG "%s: dropped TX filtered frame, "
|
|
|
|
"queue_len=%d PS=%d @%lu\n",
|
|
|
|
wiphy_name(local->hw.wiphy),
|
|
|
|
skb_queue_len(&sta->tx_filtered),
|
|
|
|
!!(sta->flags & WLAN_STA_PS), jiffies);
|
|
|
|
dev_kfree_skb(skb);
|
|
|
|
}
|
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
|
|
|
|
struct ieee80211_tx_status *status)
|
|
|
|
{
|
|
|
|
struct sk_buff *skb2;
|
|
|
|
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
u16 frag, type;
|
2007-07-10 19:32:08 +02:00
|
|
|
struct ieee80211_tx_status_rtap_hdr *rthdr;
|
|
|
|
struct ieee80211_sub_if_data *sdata;
|
2008-01-31 19:48:27 +01:00
|
|
|
struct net_device *prev_dev = NULL;
|
2007-05-05 20:45:53 +02:00
|
|
|
|
|
|
|
if (!status) {
|
|
|
|
printk(KERN_ERR
|
|
|
|
"%s: ieee80211_tx_status called with NULL status\n",
|
2007-09-18 23:29:20 +02:00
|
|
|
wiphy_name(local->hw.wiphy));
|
2007-05-05 20:45:53 +02:00
|
|
|
dev_kfree_skb(skb);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_lock();
|
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
if (status->excessive_retries) {
|
|
|
|
struct sta_info *sta;
|
|
|
|
sta = sta_info_get(local, hdr->addr1);
|
|
|
|
if (sta) {
|
|
|
|
if (sta->flags & WLAN_STA_PS) {
|
2008-02-20 23:59:33 +01:00
|
|
|
/*
|
|
|
|
* The STA is in power save mode, so assume
|
2007-05-05 20:45:53 +02:00
|
|
|
* that this TX packet failed because of that.
|
|
|
|
*/
|
|
|
|
status->excessive_retries = 0;
|
|
|
|
status->flags |= IEEE80211_TX_STATUS_TX_FILTERED;
|
2008-02-20 23:59:33 +01:00
|
|
|
ieee80211_handle_filtered_frame(local, sta,
|
|
|
|
skb, status);
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2008-02-20 23:59:33 +01:00
|
|
|
return;
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (status->flags & IEEE80211_TX_STATUS_TX_FILTERED) {
|
|
|
|
struct sta_info *sta;
|
|
|
|
sta = sta_info_get(local, hdr->addr1);
|
|
|
|
if (sta) {
|
2008-02-20 23:59:33 +01:00
|
|
|
ieee80211_handle_filtered_frame(local, sta, skb,
|
|
|
|
status);
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
2007-05-05 20:45:53 +02:00
|
|
|
return;
|
|
|
|
}
|
2007-12-20 13:50:07 +01:00
|
|
|
} else
|
|
|
|
rate_control_tx_status(local->mdev, skb, status);
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2008-02-25 16:27:46 +01:00
|
|
|
rcu_read_unlock();
|
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
ieee80211_led_tx(local, 0);
|
|
|
|
|
|
|
|
/* SNMP counters
|
|
|
|
* Fragments are passed to low-level drivers as separate skbs, so these
|
|
|
|
* are actually fragments, not frames. Update frame counters only for
|
|
|
|
* the first fragment of the frame. */
|
|
|
|
|
|
|
|
frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
|
|
|
|
type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE;
|
|
|
|
|
|
|
|
if (status->flags & IEEE80211_TX_STATUS_ACK) {
|
|
|
|
if (frag == 0) {
|
|
|
|
local->dot11TransmittedFrameCount++;
|
|
|
|
if (is_multicast_ether_addr(hdr->addr1))
|
|
|
|
local->dot11MulticastTransmittedFrameCount++;
|
|
|
|
if (status->retry_count > 0)
|
|
|
|
local->dot11RetryCount++;
|
|
|
|
if (status->retry_count > 1)
|
|
|
|
local->dot11MultipleRetryCount++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This counter shall be incremented for an acknowledged MPDU
|
|
|
|
* with an individual address in the address 1 field or an MPDU
|
|
|
|
* with a multicast address in the address 1 field of type Data
|
|
|
|
* or Management. */
|
|
|
|
if (!is_multicast_ether_addr(hdr->addr1) ||
|
|
|
|
type == IEEE80211_FTYPE_DATA ||
|
|
|
|
type == IEEE80211_FTYPE_MGMT)
|
|
|
|
local->dot11TransmittedFragmentCount++;
|
|
|
|
} else {
|
|
|
|
if (frag == 0)
|
|
|
|
local->dot11FailedCount++;
|
|
|
|
}
|
|
|
|
|
2007-07-10 19:32:08 +02:00
|
|
|
/* this was a transmitted frame, but now we want to reuse it */
|
|
|
|
skb_orphan(skb);
|
|
|
|
|
2008-01-31 19:48:27 +01:00
|
|
|
/*
|
|
|
|
* This is a bit racy but we can avoid a lot of work
|
|
|
|
* with this test...
|
|
|
|
*/
|
|
|
|
if (!local->monitors && !local->cooked_mntrs) {
|
2007-05-05 20:45:53 +02:00
|
|
|
dev_kfree_skb(skb);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2007-07-10 19:32:08 +02:00
|
|
|
/* send frame to monitor interfaces now */
|
2007-05-05 20:45:53 +02:00
|
|
|
|
2007-07-10 19:32:08 +02:00
|
|
|
if (skb_headroom(skb) < sizeof(*rthdr)) {
|
|
|
|
printk(KERN_ERR "ieee80211_tx_status: headroom too small\n");
|
2007-05-05 20:45:53 +02:00
|
|
|
dev_kfree_skb(skb);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2007-07-10 19:32:08 +02:00
|
|
|
rthdr = (struct ieee80211_tx_status_rtap_hdr*)
|
|
|
|
skb_push(skb, sizeof(*rthdr));
|
|
|
|
|
|
|
|
memset(rthdr, 0, sizeof(*rthdr));
|
|
|
|
rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
|
|
|
|
rthdr->hdr.it_present =
|
|
|
|
cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
|
|
|
|
(1 << IEEE80211_RADIOTAP_DATA_RETRIES));
|
|
|
|
|
|
|
|
if (!(status->flags & IEEE80211_TX_STATUS_ACK) &&
|
|
|
|
!is_multicast_ether_addr(hdr->addr1))
|
|
|
|
rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL);
|
|
|
|
|
|
|
|
if ((status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) &&
|
|
|
|
(status->control.flags & IEEE80211_TXCTL_USE_CTS_PROTECT))
|
|
|
|
rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS);
|
|
|
|
else if (status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS)
|
|
|
|
rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS);
|
|
|
|
|
|
|
|
rthdr->data_retries = status->retry_count;
|
|
|
|
|
2008-01-31 19:48:27 +01:00
|
|
|
/* XXX: is this sufficient for BPF? */
|
|
|
|
skb_set_mac_header(skb, 0);
|
|
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
|
|
skb->pkt_type = PACKET_OTHERHOST;
|
|
|
|
skb->protocol = htons(ETH_P_802_2);
|
|
|
|
memset(skb->cb, 0, sizeof(skb->cb));
|
|
|
|
|
2007-09-18 23:29:21 +02:00
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
|
2007-12-19 01:31:27 +01:00
|
|
|
if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR) {
|
2007-07-10 19:32:08 +02:00
|
|
|
if (!netif_running(sdata->dev))
|
|
|
|
continue;
|
2008-01-31 19:48:27 +01:00
|
|
|
|
|
|
|
if (prev_dev) {
|
2007-09-18 23:29:21 +02:00
|
|
|
skb2 = skb_clone(skb, GFP_ATOMIC);
|
2008-01-31 19:48:27 +01:00
|
|
|
if (skb2) {
|
|
|
|
skb2->dev = prev_dev;
|
|
|
|
netif_rx(skb2);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
prev_dev = sdata->dev;
|
2007-07-10 19:32:08 +02:00
|
|
|
}
|
|
|
|
}
|
2008-01-31 19:48:27 +01:00
|
|
|
if (prev_dev) {
|
|
|
|
skb->dev = prev_dev;
|
|
|
|
netif_rx(skb);
|
|
|
|
skb = NULL;
|
|
|
|
}
|
2007-09-18 23:29:21 +02:00
|
|
|
rcu_read_unlock();
|
2008-01-31 19:48:27 +01:00
|
|
|
dev_kfree_skb(skb);
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_tx_status);
|
|
|
|
|
|
|
|
struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
|
|
|
|
const struct ieee80211_ops *ops)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local;
|
|
|
|
int priv_size;
|
|
|
|
struct wiphy *wiphy;
|
|
|
|
|
|
|
|
/* Ensure 32-byte alignment of our private data and hw private data.
|
|
|
|
* We use the wiphy priv data for both our ieee80211_local and for
|
|
|
|
* the driver's private data
|
|
|
|
*
|
|
|
|
* In memory it'll be like this:
|
|
|
|
*
|
|
|
|
* +-------------------------+
|
|
|
|
* | struct wiphy |
|
|
|
|
* +-------------------------+
|
|
|
|
* | struct ieee80211_local |
|
|
|
|
* +-------------------------+
|
|
|
|
* | driver's private data |
|
|
|
|
* +-------------------------+
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
priv_size = ((sizeof(struct ieee80211_local) +
|
|
|
|
NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) +
|
|
|
|
priv_data_len;
|
|
|
|
|
|
|
|
wiphy = wiphy_new(&mac80211_config_ops, priv_size);
|
|
|
|
|
|
|
|
if (!wiphy)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
wiphy->privid = mac80211_wiphy_privid;
|
|
|
|
|
|
|
|
local = wiphy_priv(wiphy);
|
|
|
|
local->hw.wiphy = wiphy;
|
|
|
|
|
|
|
|
local->hw.priv = (char *)local +
|
|
|
|
((sizeof(struct ieee80211_local) +
|
|
|
|
NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
|
|
|
|
|
2007-07-10 19:32:10 +02:00
|
|
|
BUG_ON(!ops->tx);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
BUG_ON(!ops->start);
|
|
|
|
BUG_ON(!ops->stop);
|
2007-07-10 19:32:10 +02:00
|
|
|
BUG_ON(!ops->config);
|
|
|
|
BUG_ON(!ops->add_interface);
|
[PATCH] mac80211: revamp interface and filter configuration
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>
2007-09-17 07:29:23 +02:00
|
|
|
BUG_ON(!ops->remove_interface);
|
|
|
|
BUG_ON(!ops->configure_filter);
|
2007-05-05 20:45:53 +02:00
|
|
|
local->ops = ops;
|
|
|
|
|
|
|
|
local->hw.queues = 1; /* default */
|
|
|
|
|
|
|
|
local->bridge_packets = 1;
|
|
|
|
|
|
|
|
local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
|
|
|
|
local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
|
|
|
|
local->short_retry_limit = 7;
|
|
|
|
local->long_retry_limit = 4;
|
|
|
|
local->hw.conf.radio_enabled = 1;
|
|
|
|
|
2007-09-18 23:29:21 +02:00
|
|
|
INIT_LIST_HEAD(&local->interfaces);
|
2007-05-05 20:45:53 +02:00
|
|
|
|
|
|
|
INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
|
|
|
|
|
|
|
|
sta_info_init(local);
|
|
|
|
|
|
|
|
tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
|
|
|
|
(unsigned long)local);
|
|
|
|
tasklet_disable(&local->tx_pending_tasklet);
|
|
|
|
|
|
|
|
tasklet_init(&local->tasklet,
|
|
|
|
ieee80211_tasklet_handler,
|
|
|
|
(unsigned long) local);
|
|
|
|
tasklet_disable(&local->tasklet);
|
|
|
|
|
|
|
|
skb_queue_head_init(&local->skb_queue);
|
|
|
|
skb_queue_head_init(&local->skb_queue_unreliable);
|
|
|
|
|
|
|
|
return local_to_hw(local);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_alloc_hw);
|
|
|
|
|
|
|
|
int ieee80211_register_hw(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
const char *name;
|
|
|
|
int result;
|
2008-01-24 19:38:38 +01:00
|
|
|
enum ieee80211_band band;
|
2008-02-08 09:48:13 +01:00
|
|
|
struct net_device *mdev;
|
|
|
|
struct ieee80211_sub_if_data *sdata;
|
2008-01-24 19:38:38 +01:00
|
|
|
|
|
|
|
/*
|
|
|
|
* generic code guarantees at least one band,
|
|
|
|
* set this very early because much code assumes
|
|
|
|
* that hw.conf.channel is assigned
|
|
|
|
*/
|
|
|
|
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
|
|
|
|
struct ieee80211_supported_band *sband;
|
|
|
|
|
|
|
|
sband = local->hw.wiphy->bands[band];
|
|
|
|
if (sband) {
|
|
|
|
/* init channel we're on */
|
|
|
|
local->hw.conf.channel =
|
|
|
|
local->oper_channel =
|
|
|
|
local->scan_channel = &sband->channels[0];
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2007-05-05 20:45:53 +02:00
|
|
|
|
|
|
|
result = wiphy_register(local->hw.wiphy);
|
|
|
|
if (result < 0)
|
|
|
|
return result;
|
|
|
|
|
2008-02-08 09:48:13 +01:00
|
|
|
/* for now, mdev needs sub_if_data :/ */
|
|
|
|
mdev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
|
|
|
|
"wmaster%d", ether_setup);
|
|
|
|
if (!mdev)
|
|
|
|
goto fail_mdev_alloc;
|
|
|
|
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
|
|
|
|
mdev->ieee80211_ptr = &sdata->wdev;
|
|
|
|
sdata->wdev.wiphy = local->hw.wiphy;
|
|
|
|
|
|
|
|
local->mdev = mdev;
|
|
|
|
|
|
|
|
ieee80211_rx_bss_list_init(mdev);
|
|
|
|
|
|
|
|
mdev->hard_start_xmit = ieee80211_master_start_xmit;
|
|
|
|
mdev->open = ieee80211_master_open;
|
|
|
|
mdev->stop = ieee80211_master_stop;
|
|
|
|
mdev->type = ARPHRD_IEEE80211;
|
|
|
|
mdev->header_ops = &ieee80211_header_ops;
|
|
|
|
mdev->set_multicast_list = ieee80211_master_set_multicast_list;
|
|
|
|
|
|
|
|
sdata->vif.type = IEEE80211_IF_TYPE_AP;
|
|
|
|
sdata->dev = mdev;
|
|
|
|
sdata->local = local;
|
|
|
|
sdata->u.ap.force_unicast_rateidx = -1;
|
|
|
|
sdata->u.ap.max_ratectrl_rateidx = -1;
|
|
|
|
ieee80211_if_sdata_init(sdata);
|
|
|
|
|
|
|
|
/* no RCU needed since we're still during init phase */
|
|
|
|
list_add_tail(&sdata->list, &local->interfaces);
|
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
name = wiphy_dev(local->hw.wiphy)->driver->name;
|
|
|
|
local->hw.workqueue = create_singlethread_workqueue(name);
|
|
|
|
if (!local->hw.workqueue) {
|
|
|
|
result = -ENOMEM;
|
|
|
|
goto fail_workqueue;
|
|
|
|
}
|
|
|
|
|
2007-07-10 19:32:08 +02:00
|
|
|
/*
|
|
|
|
* The hardware needs headroom for sending the frame,
|
|
|
|
* and we need some headroom for passing the frame to monitor
|
|
|
|
* interfaces, but never both at the same time.
|
|
|
|
*/
|
2007-07-18 17:10:44 +02:00
|
|
|
local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom,
|
|
|
|
sizeof(struct ieee80211_tx_status_rtap_hdr));
|
2007-07-10 19:32:08 +02:00
|
|
|
|
2007-05-05 20:46:38 +02:00
|
|
|
debugfs_hw_add(local);
|
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
local->hw.conf.beacon_int = 1000;
|
|
|
|
|
|
|
|
local->wstats_flags |= local->hw.max_rssi ?
|
|
|
|
IW_QUAL_LEVEL_UPDATED : IW_QUAL_LEVEL_INVALID;
|
|
|
|
local->wstats_flags |= local->hw.max_signal ?
|
|
|
|
IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
|
|
|
|
local->wstats_flags |= local->hw.max_noise ?
|
|
|
|
IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
|
|
|
|
if (local->hw.max_rssi < 0 || local->hw.max_noise < 0)
|
|
|
|
local->wstats_flags |= IW_QUAL_DBM;
|
|
|
|
|
|
|
|
result = sta_info_start(local);
|
|
|
|
if (result < 0)
|
|
|
|
goto fail_sta_info;
|
|
|
|
|
|
|
|
rtnl_lock();
|
|
|
|
result = dev_alloc_name(local->mdev, local->mdev->name);
|
|
|
|
if (result < 0)
|
|
|
|
goto fail_dev;
|
|
|
|
|
|
|
|
memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
|
|
|
|
SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy));
|
|
|
|
|
|
|
|
result = register_netdevice(local->mdev);
|
|
|
|
if (result < 0)
|
|
|
|
goto fail_dev;
|
|
|
|
|
2007-05-05 20:46:38 +02:00
|
|
|
ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
|
2007-09-26 14:27:23 +02:00
|
|
|
ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
|
2007-05-05 20:46:38 +02:00
|
|
|
|
2007-10-28 14:51:05 +01:00
|
|
|
result = ieee80211_init_rate_ctrl_alg(local,
|
|
|
|
hw->rate_control_algorithm);
|
2007-05-05 20:45:53 +02:00
|
|
|
if (result < 0) {
|
|
|
|
printk(KERN_DEBUG "%s: Failed to initialize rate control "
|
2007-09-18 23:29:20 +02:00
|
|
|
"algorithm\n", wiphy_name(local->hw.wiphy));
|
2007-05-05 20:45:53 +02:00
|
|
|
goto fail_rate;
|
|
|
|
}
|
|
|
|
|
|
|
|
result = ieee80211_wep_init(local);
|
|
|
|
|
|
|
|
if (result < 0) {
|
|
|
|
printk(KERN_DEBUG "%s: Failed to initialize wep\n",
|
2007-09-18 23:29:20 +02:00
|
|
|
wiphy_name(local->hw.wiphy));
|
2007-05-05 20:45:53 +02:00
|
|
|
goto fail_wep;
|
|
|
|
}
|
|
|
|
|
|
|
|
ieee80211_install_qdisc(local->mdev);
|
|
|
|
|
|
|
|
/* add one default STA interface */
|
|
|
|
result = ieee80211_if_add(local->mdev, "wlan%d", NULL,
|
2008-02-23 15:17:11 +01:00
|
|
|
IEEE80211_IF_TYPE_STA, NULL);
|
2007-05-05 20:45:53 +02:00
|
|
|
if (result)
|
|
|
|
printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
|
2007-09-18 23:29:20 +02:00
|
|
|
wiphy_name(local->hw.wiphy));
|
2007-05-05 20:45:53 +02:00
|
|
|
|
|
|
|
local->reg_state = IEEE80211_DEV_REGISTERED;
|
|
|
|
rtnl_unlock();
|
|
|
|
|
|
|
|
ieee80211_led_init(local);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
fail_wep:
|
|
|
|
rate_control_deinitialize(local);
|
|
|
|
fail_rate:
|
2007-05-05 20:46:38 +02:00
|
|
|
ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
|
2007-05-05 20:45:53 +02:00
|
|
|
unregister_netdevice(local->mdev);
|
|
|
|
fail_dev:
|
|
|
|
rtnl_unlock();
|
|
|
|
sta_info_stop(local);
|
|
|
|
fail_sta_info:
|
2007-05-05 20:46:38 +02:00
|
|
|
debugfs_hw_del(local);
|
2007-05-05 20:45:53 +02:00
|
|
|
destroy_workqueue(local->hw.workqueue);
|
|
|
|
fail_workqueue:
|
2008-02-08 09:48:13 +01:00
|
|
|
ieee80211_if_free(local->mdev);
|
|
|
|
local->mdev = NULL;
|
|
|
|
fail_mdev_alloc:
|
2007-05-05 20:45:53 +02:00
|
|
|
wiphy_unregister(local->hw.wiphy);
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_register_hw);
|
|
|
|
|
|
|
|
void ieee80211_unregister_hw(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
struct ieee80211_sub_if_data *sdata, *tmp;
|
|
|
|
|
|
|
|
tasklet_kill(&local->tx_pending_tasklet);
|
|
|
|
tasklet_kill(&local->tasklet);
|
|
|
|
|
|
|
|
rtnl_lock();
|
|
|
|
|
|
|
|
BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
|
|
|
|
|
|
|
|
local->reg_state = IEEE80211_DEV_UNREGISTERED;
|
|
|
|
|
2007-09-18 23:29:21 +02:00
|
|
|
/*
|
|
|
|
* At this point, interface list manipulations are fine
|
|
|
|
* because the driver cannot be handing us frames any
|
|
|
|
* more and the tasklet is killed.
|
|
|
|
*/
|
2007-09-26 14:27:23 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* First, we remove all non-master interfaces. Do this because they
|
|
|
|
* may have bss pointer dependency on the master, and when we free
|
|
|
|
* the master these would be freed as well, breaking our list
|
|
|
|
* iteration completely.
|
|
|
|
*/
|
|
|
|
list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
|
|
|
|
if (sdata->dev == local->mdev)
|
|
|
|
continue;
|
|
|
|
list_del(&sdata->list);
|
2007-05-05 20:45:53 +02:00
|
|
|
__ieee80211_if_del(local, sdata);
|
2007-09-26 14:27:23 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* then, finally, remove the master interface */
|
|
|
|
__ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev));
|
2007-05-05 20:45:53 +02:00
|
|
|
|
|
|
|
rtnl_unlock();
|
|
|
|
|
|
|
|
ieee80211_rx_bss_list_deinit(local->mdev);
|
|
|
|
ieee80211_clear_tx_pending(local);
|
|
|
|
sta_info_stop(local);
|
|
|
|
rate_control_deinitialize(local);
|
2007-05-05 20:46:38 +02:00
|
|
|
debugfs_hw_del(local);
|
2007-05-05 20:45:53 +02:00
|
|
|
|
|
|
|
if (skb_queue_len(&local->skb_queue)
|
|
|
|
|| skb_queue_len(&local->skb_queue_unreliable))
|
|
|
|
printk(KERN_WARNING "%s: skb_queue not empty\n",
|
2007-09-18 23:29:20 +02:00
|
|
|
wiphy_name(local->hw.wiphy));
|
2007-05-05 20:45:53 +02:00
|
|
|
skb_queue_purge(&local->skb_queue);
|
|
|
|
skb_queue_purge(&local->skb_queue_unreliable);
|
|
|
|
|
|
|
|
destroy_workqueue(local->hw.workqueue);
|
|
|
|
wiphy_unregister(local->hw.wiphy);
|
|
|
|
ieee80211_wep_free(local);
|
|
|
|
ieee80211_led_exit(local);
|
2008-02-08 09:48:13 +01:00
|
|
|
ieee80211_if_free(local->mdev);
|
|
|
|
local->mdev = NULL;
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_unregister_hw);
|
|
|
|
|
|
|
|
void ieee80211_free_hw(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
|
|
|
|
wiphy_free(local->hw.wiphy);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ieee80211_free_hw);
|
|
|
|
|
|
|
|
static int __init ieee80211_init(void)
|
|
|
|
{
|
|
|
|
struct sk_buff *skb;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
|
|
|
|
|
2008-01-02 15:17:03 +01:00
|
|
|
ret = rc80211_pid_init();
|
2007-12-19 01:25:57 +01:00
|
|
|
if (ret)
|
2008-03-05 00:26:15 +01:00
|
|
|
goto out;
|
2007-10-28 14:17:44 +01:00
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
ret = ieee80211_wme_register();
|
|
|
|
if (ret) {
|
|
|
|
printk(KERN_DEBUG "ieee80211_init: failed to "
|
|
|
|
"initialize WME (err=%d)\n", ret);
|
2008-01-31 19:33:53 +01:00
|
|
|
goto out_cleanup_pid;
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
|
2007-05-05 20:46:38 +02:00
|
|
|
ieee80211_debugfs_netdev_init();
|
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
return 0;
|
2007-12-19 01:25:57 +01:00
|
|
|
|
2008-01-31 19:33:53 +01:00
|
|
|
out_cleanup_pid:
|
2008-01-02 15:17:03 +01:00
|
|
|
rc80211_pid_exit();
|
2008-01-31 19:33:53 +01:00
|
|
|
out:
|
2007-12-19 01:25:57 +01:00
|
|
|
return ret;
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit ieee80211_exit(void)
|
|
|
|
{
|
2008-01-02 15:17:03 +01:00
|
|
|
rc80211_pid_exit();
|
2007-10-28 14:17:44 +01:00
|
|
|
|
2008-02-23 15:17:18 +01:00
|
|
|
if (mesh_allocated)
|
|
|
|
ieee80211s_stop();
|
2008-02-23 15:17:19 +01:00
|
|
|
|
2007-05-05 20:45:53 +02:00
|
|
|
ieee80211_wme_unregister();
|
2007-05-05 20:46:38 +02:00
|
|
|
ieee80211_debugfs_netdev_exit();
|
2007-05-05 20:45:53 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-09-11 12:50:32 +02:00
|
|
|
subsys_initcall(ieee80211_init);
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2007-05-05 20:45:53 +02:00
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module_exit(ieee80211_exit);
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MODULE_DESCRIPTION("IEEE 802.11 subsystem");
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MODULE_LICENSE("GPL");
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