---------------------------
-What: ieee80211 softmac wireless networking component
-When: 2.6.26 (or after removal of bcm43xx and port of zd1211rw to mac80211)
-Files: net/ieee80211/softmac
-Why: No in-kernel drivers will depend on it any longer.
-Who: John W. Linville <linville@tuxdriver.com>
-
----------------------------
-
What: rc80211-simple rate control algorithm for mac80211
When: 2.6.26
Files: net/mac80211/rc80211-simple.c
L: lm-sensors@lm-sensors.org
S: Maintained
-SOFTMAC LAYER (IEEE 802.11)
-P: Daniel Drake
-M: dsd@gentoo.org
-L: linux-wireless@vger.kernel.org
-S: Obsolete
-
SOFTWARE RAID (Multiple Disks) SUPPORT
P: Ingo Molnar
M: mingo@redhat.com
+++ /dev/null
-/*
- * ieee80211softmac.h - public interface to the softmac
- *
- * Copyright (c) 2005 Johannes Berg <johannes@sipsolutions.net>
- * Joseph Jezak <josejx@gentoo.org>
- * Larry Finger <Larry.Finger@lwfinger.net>
- * Danny van Dyk <kugelfang@gentoo.org>
- * Michael Buesch <mbuesch@freenet.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-
-#ifndef IEEE80211SOFTMAC_H_
-#define IEEE80211SOFTMAC_H_
-
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-#include <linux/list.h>
-#include <net/ieee80211.h>
-
-/* Once the API is considered more or less stable,
- * this should be incremented on API incompatible changes.
- */
-#define IEEE80211SOFTMAC_API 0
-
-#define IEEE80211SOFTMAC_MAX_RATES_LEN 8
-#define IEEE80211SOFTMAC_MAX_EX_RATES_LEN 255
-
-struct ieee80211softmac_ratesinfo {
- u8 count;
- u8 rates[IEEE80211SOFTMAC_MAX_RATES_LEN + IEEE80211SOFTMAC_MAX_EX_RATES_LEN];
-};
-
-/* internal structures */
-struct ieee80211softmac_network;
-struct ieee80211softmac_scaninfo;
-
-struct ieee80211softmac_essid {
- u8 len;
- char data[IW_ESSID_MAX_SIZE+1];
-};
-
-struct ieee80211softmac_wpa {
- char *IE;
- int IElen;
- int IEbuflen;
-};
-
-/*
- * Information about association
- */
-struct ieee80211softmac_assoc_info {
-
- struct mutex mutex;
-
- /*
- * This is the requested ESSID. It is written
- * only by the WX handlers.
- *
- */
- struct ieee80211softmac_essid req_essid;
- /*
- * the ESSID of the network we're currently
- * associated (or trying) to. This is
- * updated to the network's actual ESSID
- * even if the requested ESSID was 'ANY'
- */
- struct ieee80211softmac_essid associate_essid;
-
- /* BSSID we're trying to associate to */
- char bssid[ETH_ALEN];
-
- /* some flags.
- * static_essid is valid if the essid is constant,
- * this is for use by the wx handlers only.
- *
- * associating is true, if the network has been
- * auth'ed on and we are in the process of associating.
- *
- * bssvalid is true if we found a matching network
- * and saved it's BSSID into the bssid above.
- *
- * bssfixed is used for SIOCSIWAP.
- */
- u8 static_essid;
- u8 short_preamble_available;
- u8 associating;
- u8 associated;
- u8 assoc_wait;
- u8 bssvalid;
- u8 bssfixed;
-
- /* Scan retries remaining */
- int scan_retry;
-
- struct delayed_work work;
- struct delayed_work timeout;
-};
-
-struct ieee80211softmac_bss_info {
- /* Rates supported by the network */
- struct ieee80211softmac_ratesinfo supported_rates;
-
- /* This indicates whether frames can currently be transmitted with
- * short preamble (only use this variable during TX at CCK rates) */
- u8 short_preamble:1;
-
- /* This indicates whether protection (e.g. self-CTS) should be used
- * when transmitting with OFDM modulation */
- u8 use_protection:1;
-};
-
-enum {
- IEEE80211SOFTMAC_AUTH_OPEN_REQUEST = 1,
- IEEE80211SOFTMAC_AUTH_OPEN_RESPONSE = 2,
-};
-
-enum {
- IEEE80211SOFTMAC_AUTH_SHARED_REQUEST = 1,
- IEEE80211SOFTMAC_AUTH_SHARED_CHALLENGE = 2,
- IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE = 3,
- IEEE80211SOFTMAC_AUTH_SHARED_PASS = 4,
-};
-
-/* We should make these tunable
- * AUTH_TIMEOUT seems really long, but that's what it is in BSD */
-#define IEEE80211SOFTMAC_AUTH_TIMEOUT (12 * HZ)
-#define IEEE80211SOFTMAC_AUTH_RETRY_LIMIT 5
-#define IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT 3
-
-struct ieee80211softmac_txrates {
- /* The Bit-Rate to be used for multicast frames. */
- u8 mcast_rate;
-
- /* The Bit-Rate to be used for multicast management frames. */
- u8 mgt_mcast_rate;
-
- /* The Bit-Rate to be used for any other (normal) data packet. */
- u8 default_rate;
- /* The Bit-Rate to be used for default fallback
- * (If the device supports fallback and hardware-retry)
- */
- u8 default_fallback;
-
- /* This is the rate that the user asked for */
- u8 user_rate;
-};
-
-/* Bits for txrates_change callback. */
-#define IEEE80211SOFTMAC_TXRATECHG_DEFAULT (1 << 0) /* default_rate */
-#define IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK (1 << 1) /* default_fallback */
-#define IEEE80211SOFTMAC_TXRATECHG_MCAST (1 << 2) /* mcast_rate */
-#define IEEE80211SOFTMAC_TXRATECHG_MGT_MCAST (1 << 3) /* mgt_mcast_rate */
-
-#define IEEE80211SOFTMAC_BSSINFOCHG_RATES (1 << 0) /* supported_rates */
-#define IEEE80211SOFTMAC_BSSINFOCHG_SHORT_PREAMBLE (1 << 1) /* short_preamble */
-#define IEEE80211SOFTMAC_BSSINFOCHG_PROTECTION (1 << 2) /* use_protection */
-
-struct ieee80211softmac_device {
- /* 802.11 structure for data stuff */
- struct ieee80211_device *ieee;
- struct net_device *dev;
-
- /* only valid if associated, then holds the Association ID */
- u16 association_id;
-
- /* the following methods are callbacks that the driver
- * using this framework has to assign
- */
-
- /* always assign these */
- void (*set_bssid_filter)(struct net_device *dev, const u8 *bssid);
- void (*set_channel)(struct net_device *dev, u8 channel);
-
- /* assign if you need it, informational only */
- void (*link_change)(struct net_device *dev);
-
- /* If the hardware can do scanning, assign _all_ three of these callbacks.
- * When the scan finishes, call ieee80211softmac_scan_finished().
- */
-
- /* when called, start_scan is guaranteed to not be called again
- * until you call ieee80211softmac_scan_finished.
- * Return 0 if scanning could start, error otherwise.
- * SOFTMAC AUTHORS: don't call this, use ieee80211softmac_start_scan */
- int (*start_scan)(struct net_device *dev);
- /* this should block until after ieee80211softmac_scan_finished was called
- * SOFTMAC AUTHORS: don't call this, use ieee80211softmac_wait_for_scan */
- void (*wait_for_scan)(struct net_device *dev);
- /* stop_scan aborts a scan, but is asynchronous.
- * if you want to wait for it too, use wait_for_scan
- * SOFTMAC AUTHORS: don't call this, use ieee80211softmac_stop_scan */
- void (*stop_scan)(struct net_device *dev);
-
- /* we'll need something about beacons here too, for AP or ad-hoc modes */
-
- /* Transmission rates to be used by the driver.
- * The SoftMAC figures out the best possible rates.
- * The driver just needs to read them.
- */
- struct ieee80211softmac_txrates txrates;
-
- /* If the driver needs to do stuff on TX rate changes, assign this
- * callback. See IEEE80211SOFTMAC_TXRATECHG for change flags. */
- void (*txrates_change)(struct net_device *dev,
- u32 changes);
-
- /* If the driver needs to do stuff when BSS properties change, assign
- * this callback. see IEEE80211SOFTMAC_BSSINFOCHG for change flags. */
- void (*bssinfo_change)(struct net_device *dev,
- u32 changes);
-
- /* private stuff follows */
- /* this lock protects this structure */
- spinlock_t lock;
-
- struct workqueue_struct *wq;
-
- u8 running; /* SoftMAC started? */
- u8 scanning;
-
- struct ieee80211softmac_scaninfo *scaninfo;
- struct ieee80211softmac_assoc_info associnfo;
- struct ieee80211softmac_bss_info bssinfo;
-
- struct list_head auth_queue;
- struct list_head events;
-
- struct ieee80211softmac_ratesinfo ratesinfo;
- int txrate_badness;
-
- /* WPA stuff */
- struct ieee80211softmac_wpa wpa;
-
- /* we need to keep a list of network structs we copied */
- struct list_head network_list;
-
- /* This must be the last item so that it points to the data
- * allocated beyond this structure by alloc_ieee80211 */
- u8 priv[0];
-};
-
-extern void ieee80211softmac_scan_finished(struct ieee80211softmac_device *sm);
-
-static inline void * ieee80211softmac_priv(struct net_device *dev)
-{
- return ((struct ieee80211softmac_device *)ieee80211_priv(dev))->priv;
-}
-
-extern struct net_device * alloc_ieee80211softmac(int sizeof_priv);
-extern void free_ieee80211softmac(struct net_device *dev);
-
-/* Call this function if you detect a lost TX fragment.
- * (If the device indicates failure of ACK RX, for example.)
- * It is wise to call this function if you are able to detect lost packets,
- * because it contributes to the TX Rates auto adjustment.
- */
-extern void ieee80211softmac_fragment_lost(struct net_device *dev,
- u16 wireless_sequence_number);
-/* Call this function before _start to tell the softmac what rates
- * the hw supports. The rates parameter is copied, so you can
- * free it right after calling this function.
- * Note that the rates need to be sorted. */
-extern void ieee80211softmac_set_rates(struct net_device *dev, u8 count, u8 *rates);
-
-/* Finds the highest rate which is:
- * 1. Present in ri (optionally a basic rate)
- * 2. Supported by the device
- * 3. Less than or equal to the user-defined rate
- */
-extern u8 ieee80211softmac_highest_supported_rate(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_ratesinfo *ri, int basic_only);
-
-/* Helper function which advises you the rate at which a frame should be
- * transmitted at. */
-static inline u8 ieee80211softmac_suggest_txrate(struct ieee80211softmac_device *mac,
- int is_multicast,
- int is_mgt)
-{
- struct ieee80211softmac_txrates *txrates = &mac->txrates;
-
- if (!mac->associnfo.associated)
- return txrates->mgt_mcast_rate;
-
- /* We are associated, sending unicast frame */
- if (!is_multicast)
- return txrates->default_rate;
-
- /* We are associated, sending multicast frame */
- if (is_mgt)
- return txrates->mgt_mcast_rate;
- else
- return txrates->mcast_rate;
-}
-
-/* Helper function which advises you when it is safe to transmit with short
- * preamble.
- * You should only call this function when transmitting at CCK rates. */
-static inline int ieee80211softmac_short_preamble_ok(struct ieee80211softmac_device *mac,
- int is_multicast,
- int is_mgt)
-{
- return (is_multicast && is_mgt) ? 0 : mac->bssinfo.short_preamble;
-}
-
-/* Helper function which advises you whether protection (e.g. self-CTS) is
- * needed. 1 = protection needed, 0 = no protection needed
- * Only use this function when transmitting with OFDM modulation. */
-static inline int ieee80211softmac_protection_needed(struct ieee80211softmac_device *mac)
-{
- return mac->bssinfo.use_protection;
-}
-
-/* Start the SoftMAC. Call this after you initialized the device
- * and it is ready to run.
- */
-extern void ieee80211softmac_start(struct net_device *dev);
-/* Stop the SoftMAC. Call this before you shutdown the device. */
-extern void ieee80211softmac_stop(struct net_device *dev);
-
-/*
- * Event system
- */
-
-/* valid event types */
-#define IEEE80211SOFTMAC_EVENT_ANY -1 /*private use only*/
-#define IEEE80211SOFTMAC_EVENT_SCAN_FINISHED 0
-#define IEEE80211SOFTMAC_EVENT_ASSOCIATED 1
-#define IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED 2
-#define IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT 3
-#define IEEE80211SOFTMAC_EVENT_AUTHENTICATED 4
-#define IEEE80211SOFTMAC_EVENT_AUTH_FAILED 5
-#define IEEE80211SOFTMAC_EVENT_AUTH_TIMEOUT 6
-#define IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND 7
-#define IEEE80211SOFTMAC_EVENT_DISASSOCIATED 8
-/* keep this updated! */
-#define IEEE80211SOFTMAC_EVENT_LAST 8
-/*
- * If you want to be notified of certain events, you can call
- * ieee80211softmac_notify[_atomic] with
- * - event set to one of the constants below
- * - fun set to a function pointer of the appropriate type
- * - context set to the context data you want passed
- * The return value is 0, or an error.
- */
-typedef void (*notify_function_ptr)(struct net_device *dev, int event_type, void *context);
-
-#define ieee80211softmac_notify(dev, event, fun, context) ieee80211softmac_notify_gfp(dev, event, fun, context, GFP_KERNEL);
-#define ieee80211softmac_notify_atomic(dev, event, fun, context) ieee80211softmac_notify_gfp(dev, event, fun, context, GFP_ATOMIC);
-
-extern int ieee80211softmac_notify_gfp(struct net_device *dev,
- int event, notify_function_ptr fun, void *context, gfp_t gfp_mask);
-
-/* To clear pending work (for ifconfig down, etc.) */
-extern void
-ieee80211softmac_clear_pending_work(struct ieee80211softmac_device *sm);
-
-#endif /* IEEE80211SOFTMAC_H_ */
+++ /dev/null
-/*
- * This file contains the prototypes for the wireless extension
- * handlers that the softmac API provides. Include this file to
- * use the wx handlers, you can assign these directly.
- *
- * Copyright (c) 2005 Johannes Berg <johannes@sipsolutions.net>
- * Joseph Jezak <josejx@gentoo.org>
- * Larry Finger <Larry.Finger@lwfinger.net>
- * Danny van Dyk <kugelfang@gentoo.org>
- * Michael Buesch <mbuesch@freenet.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-
-#ifndef _IEEE80211SOFTMAC_WX_H
-#define _IEEE80211SOFTMAC_WX_H
-
-#include <net/ieee80211softmac.h>
-#include <net/iw_handler.h>
-
-extern int
-ieee80211softmac_wx_trigger_scan(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra);
-
-extern int
-ieee80211softmac_wx_get_scan_results(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra);
-
-extern int
-ieee80211softmac_wx_set_essid(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra);
-
-extern int
-ieee80211softmac_wx_get_essid(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra);
-
-extern int
-ieee80211softmac_wx_set_rate(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra);
-
-extern int
-ieee80211softmac_wx_get_rate(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra);
-
-extern int
-ieee80211softmac_wx_get_wap(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra);
-
-extern int
-ieee80211softmac_wx_set_wap(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra);
-
-extern int
-ieee80211softmac_wx_set_genie(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra);
-
-extern int
-ieee80211softmac_wx_get_genie(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra);
-extern int
-ieee80211softmac_wx_set_mlme(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra);
-#endif /* _IEEE80211SOFTMAC_WX */
This can be compiled as a module and it will be called
"ieee80211_crypt_tkip".
-source "net/ieee80211/softmac/Kconfig"
ieee80211_wx.o \
ieee80211_geo.o
-obj-$(CONFIG_IEEE80211_SOFTMAC) += softmac/
+++ /dev/null
-config IEEE80211_SOFTMAC
- tristate "Software MAC add-on to the IEEE 802.11 networking stack"
- depends on IEEE80211 && EXPERIMENTAL
- select WIRELESS_EXT
- select IEEE80211_CRYPT_WEP
- ---help---
- This option enables the hardware independent software MAC addon
- for the IEEE 802.11 networking stack.
-
-config IEEE80211_SOFTMAC_DEBUG
- bool "Enable full debugging output"
- depends on IEEE80211_SOFTMAC
+++ /dev/null
-obj-$(CONFIG_IEEE80211_SOFTMAC) += ieee80211softmac.o
-ieee80211softmac-objs := \
- ieee80211softmac_io.o \
- ieee80211softmac_auth.o \
- ieee80211softmac_module.o \
- ieee80211softmac_scan.o \
- ieee80211softmac_wx.o \
- ieee80211softmac_assoc.o \
- ieee80211softmac_event.o
+++ /dev/null
-/*
- * This file contains the softmac's association logic.
- *
- * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net>
- * Joseph Jezak <josejx@gentoo.org>
- * Larry Finger <Larry.Finger@lwfinger.net>
- * Danny van Dyk <kugelfang@gentoo.org>
- * Michael Buesch <mbuesch@freenet.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-
-#include "ieee80211softmac_priv.h"
-
-/*
- * Overview
- *
- * Before you can associate, you have to authenticate.
- *
- */
-
-/* Sends out an association request to the desired AP */
-static void
-ieee80211softmac_assoc(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net)
-{
- unsigned long flags;
-
- /* Switch to correct channel for this network */
- mac->set_channel(mac->dev, net->channel);
-
- /* Send association request */
- ieee80211softmac_send_mgt_frame(mac, net, IEEE80211_STYPE_ASSOC_REQ, 0);
-
- dprintk(KERN_INFO PFX "sent association request!\n");
-
- spin_lock_irqsave(&mac->lock, flags);
- mac->associnfo.associated = 0; /* just to make sure */
-
- /* Set a timer for timeout */
- /* FIXME: make timeout configurable */
- if (likely(mac->running))
- queue_delayed_work(mac->wq, &mac->associnfo.timeout, 5 * HZ);
- spin_unlock_irqrestore(&mac->lock, flags);
-}
-
-void
-ieee80211softmac_assoc_timeout(struct work_struct *work)
-{
- struct ieee80211softmac_device *mac =
- container_of(work, struct ieee80211softmac_device,
- associnfo.timeout.work);
- struct ieee80211softmac_network *n;
-
- mutex_lock(&mac->associnfo.mutex);
- /* we might race against ieee80211softmac_handle_assoc_response,
- * so make sure only one of us does something */
- if (!mac->associnfo.associating)
- goto out;
- mac->associnfo.associating = 0;
- mac->associnfo.bssvalid = 0;
- mac->associnfo.associated = 0;
-
- n = ieee80211softmac_get_network_by_bssid_locked(mac, mac->associnfo.bssid);
-
- dprintk(KERN_INFO PFX "assoc request timed out!\n");
- ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT, n);
-out:
- mutex_unlock(&mac->associnfo.mutex);
-}
-
-void
-ieee80211softmac_disassoc(struct ieee80211softmac_device *mac)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&mac->lock, flags);
- if (mac->associnfo.associating)
- cancel_delayed_work(&mac->associnfo.timeout);
-
- netif_carrier_off(mac->dev);
-
- mac->associnfo.associated = 0;
- mac->associnfo.bssvalid = 0;
- mac->associnfo.associating = 0;
- ieee80211softmac_init_bss(mac);
- ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_DISASSOCIATED, NULL);
- spin_unlock_irqrestore(&mac->lock, flags);
-}
-
-/* Sends out a disassociation request to the desired AP */
-void
-ieee80211softmac_send_disassoc_req(struct ieee80211softmac_device *mac, u16 reason)
-{
- struct ieee80211softmac_network *found;
-
- if (mac->associnfo.bssvalid && mac->associnfo.associated) {
- found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);
- if (found)
- ieee80211softmac_send_mgt_frame(mac, found, IEEE80211_STYPE_DISASSOC, reason);
- }
-
- ieee80211softmac_disassoc(mac);
-}
-
-static inline int
-we_support_all_basic_rates(struct ieee80211softmac_device *mac, u8 *from, u8 from_len)
-{
- int idx;
- u8 rate;
-
- for (idx = 0; idx < (from_len); idx++) {
- rate = (from)[idx];
- if (!(rate & IEEE80211_BASIC_RATE_MASK))
- continue;
- rate &= ~IEEE80211_BASIC_RATE_MASK;
- if (!ieee80211softmac_ratesinfo_rate_supported(&mac->ratesinfo, rate))
- return 0;
- }
- return 1;
-}
-
-static int
-network_matches_request(struct ieee80211softmac_device *mac, struct ieee80211_network *net)
-{
- /* we cannot associate to networks whose name we don't know */
- if (ieee80211_is_empty_essid(net->ssid, net->ssid_len))
- return 0;
- /* do not associate to a network whose BSSBasicRateSet we cannot support */
- if (!we_support_all_basic_rates(mac, net->rates, net->rates_len))
- return 0;
- /* do we really need to check the ex rates? */
- if (!we_support_all_basic_rates(mac, net->rates_ex, net->rates_ex_len))
- return 0;
-
- /* assume that users know what they're doing ...
- * (note we don't let them select a net we're incompatible with) */
- if (mac->associnfo.bssfixed) {
- return !memcmp(mac->associnfo.bssid, net->bssid, ETH_ALEN);
- }
-
- /* if 'ANY' network requested, take any that doesn't have privacy enabled */
- if (mac->associnfo.req_essid.len == 0
- && !(net->capability & WLAN_CAPABILITY_PRIVACY))
- return 1;
- if (net->ssid_len != mac->associnfo.req_essid.len)
- return 0;
- if (!memcmp(net->ssid, mac->associnfo.req_essid.data, mac->associnfo.req_essid.len))
- return 1;
- return 0;
-}
-
-static void
-ieee80211softmac_assoc_notify_scan(struct net_device *dev, int event_type, void *context)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- ieee80211softmac_assoc_work(&mac->associnfo.work.work);
-}
-
-static void
-ieee80211softmac_assoc_notify_auth(struct net_device *dev, int event_type, void *context)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
-
- switch (event_type) {
- case IEEE80211SOFTMAC_EVENT_AUTHENTICATED:
- ieee80211softmac_assoc_work(&mac->associnfo.work.work);
- break;
- case IEEE80211SOFTMAC_EVENT_AUTH_FAILED:
- case IEEE80211SOFTMAC_EVENT_AUTH_TIMEOUT:
- ieee80211softmac_disassoc(mac);
- break;
- }
-}
-
-/* This function is called to handle userspace requests (asynchronously) */
-void
-ieee80211softmac_assoc_work(struct work_struct *work)
-{
- struct ieee80211softmac_device *mac =
- container_of(work, struct ieee80211softmac_device,
- associnfo.work.work);
- struct ieee80211softmac_network *found = NULL;
- struct ieee80211_network *net = NULL, *best = NULL;
- int bssvalid;
- unsigned long flags;
-
- mutex_lock(&mac->associnfo.mutex);
-
- if (!mac->associnfo.associating)
- goto out;
-
- /* ieee80211_disassoc might clear this */
- bssvalid = mac->associnfo.bssvalid;
-
- /* meh */
- if (mac->associnfo.associated)
- ieee80211softmac_send_disassoc_req(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT);
-
- /* try to find the requested network in our list, if we found one already */
- if (bssvalid || mac->associnfo.bssfixed)
- found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);
-
- /* Search the ieee80211 networks for this network if we didn't find it by bssid,
- * but only if we've scanned at least once (to get a better list of networks to
- * select from). If we have not scanned before, the !found logic below will be
- * invoked and will scan. */
- if (!found && (mac->associnfo.scan_retry < IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT))
- {
- s8 rssi = -128; /* if I don't initialise, gcc emits an invalid warning
- because it cannot follow the best pointer logic. */
- spin_lock_irqsave(&mac->ieee->lock, flags);
- list_for_each_entry(net, &mac->ieee->network_list, list) {
- /* we're supposed to find the network with
- * the best signal here, as we're asked to join
- * any network with a specific ESSID, and many
- * different ones could have that.
- *
- * I'll for now just go with the reported rssi.
- *
- * We also should take into account the rateset
- * here to find the best BSSID to try.
- */
- if (network_matches_request(mac, net)) {
- if (!best) {
- best = net;
- rssi = best->stats.rssi;
- continue;
- }
- /* we already had a matching network, so
- * compare their properties to get the
- * better of the two ... (see above)
- */
- if (rssi < net->stats.rssi) {
- best = net;
- rssi = best->stats.rssi;
- }
- }
- }
- /* if we unlock here, we might get interrupted and the `best'
- * pointer could go stale */
- if (best) {
- found = ieee80211softmac_create_network(mac, best);
- /* if found is still NULL, then we got -ENOMEM somewhere */
- if (found)
- ieee80211softmac_add_network(mac, found);
- }
- spin_unlock_irqrestore(&mac->ieee->lock, flags);
- }
-
- if (!found) {
- if (mac->associnfo.scan_retry > 0) {
- mac->associnfo.scan_retry--;
-
- /* We know of no such network. Let's scan.
- * NB: this also happens if we had no memory to copy the network info...
- * Maybe we can hope to have more memory after scanning finishes ;)
- */
- dprintk(KERN_INFO PFX "Associate: Scanning for networks first.\n");
- ieee80211softmac_notify(mac->dev, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, ieee80211softmac_assoc_notify_scan, NULL);
- if (ieee80211softmac_start_scan(mac)) {
- dprintk(KERN_INFO PFX "Associate: failed to initiate scan. Is device up?\n");
- }
- goto out;
- } else {
- mac->associnfo.associating = 0;
- mac->associnfo.associated = 0;
-
- dprintk(KERN_INFO PFX "Unable to find matching network after scan!\n");
- /* reset the retry counter for the next user request since we
- * break out and don't reschedule ourselves after this point. */
- mac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
- ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND, NULL);
- goto out;
- }
- }
-
- /* reset the retry counter for the next user request since we
- * now found a net and will try to associate to it, but not
- * schedule this function again. */
- mac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
- mac->associnfo.bssvalid = 1;
- memcpy(mac->associnfo.bssid, found->bssid, ETH_ALEN);
- /* copy the ESSID for displaying it */
- mac->associnfo.associate_essid.len = found->essid.len;
- memcpy(mac->associnfo.associate_essid.data, found->essid.data, IW_ESSID_MAX_SIZE + 1);
-
- /* we found a network! authenticate (if necessary) and associate to it. */
- if (found->authenticating) {
- dprintk(KERN_INFO PFX "Already requested authentication, waiting...\n");
- if(!mac->associnfo.assoc_wait) {
- mac->associnfo.assoc_wait = 1;
- ieee80211softmac_notify_internal(mac, IEEE80211SOFTMAC_EVENT_ANY, found, ieee80211softmac_assoc_notify_auth, NULL, GFP_KERNEL);
- }
- goto out;
- }
- if (!found->authenticated && !found->authenticating) {
- /* This relies on the fact that _auth_req only queues the work,
- * otherwise adding the notification would be racy. */
- if (!ieee80211softmac_auth_req(mac, found)) {
- if(!mac->associnfo.assoc_wait) {
- dprintk(KERN_INFO PFX "Cannot associate without being authenticated, requested authentication\n");
- mac->associnfo.assoc_wait = 1;
- ieee80211softmac_notify_internal(mac, IEEE80211SOFTMAC_EVENT_ANY, found, ieee80211softmac_assoc_notify_auth, NULL, GFP_KERNEL);
- }
- } else {
- printkl(KERN_WARNING PFX "Not authenticated, but requesting authentication failed. Giving up to associate\n");
- mac->associnfo.assoc_wait = 0;
- ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, found);
- }
- goto out;
- }
- /* finally! now we can start associating */
- mac->associnfo.assoc_wait = 0;
- ieee80211softmac_assoc(mac, found);
-
-out:
- mutex_unlock(&mac->associnfo.mutex);
-}
-
-/* call this to do whatever is necessary when we're associated */
-static void
-ieee80211softmac_associated(struct ieee80211softmac_device *mac,
- struct ieee80211_assoc_response * resp,
- struct ieee80211softmac_network *net)
-{
- u16 cap = le16_to_cpu(resp->capability);
- u8 erp_value = net->erp_value;
-
- mac->associnfo.associating = 0;
- mac->bssinfo.supported_rates = net->supported_rates;
- ieee80211softmac_recalc_txrates(mac);
-
- mac->associnfo.associated = 1;
-
- mac->associnfo.short_preamble_available =
- (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0;
- ieee80211softmac_process_erp(mac, erp_value);
-
- if (mac->set_bssid_filter)
- mac->set_bssid_filter(mac->dev, net->bssid);
- memcpy(mac->ieee->bssid, net->bssid, ETH_ALEN);
- netif_carrier_on(mac->dev);
-
- mac->association_id = le16_to_cpup(&resp->aid);
-}
-
-/* received frame handling functions */
-int
-ieee80211softmac_handle_assoc_response(struct net_device * dev,
- struct ieee80211_assoc_response * resp,
- struct ieee80211_network * _ieee80211_network)
-{
- /* NOTE: the network parameter has to be mostly ignored by
- * this code because it is the ieee80211's pointer
- * to the struct, not ours (we made a copy)
- */
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- u16 status = le16_to_cpup(&resp->status);
- struct ieee80211softmac_network *network = NULL;
- unsigned long flags;
- DECLARE_MAC_BUF(mac2);
-
- if (unlikely(!mac->running))
- return -ENODEV;
-
- spin_lock_irqsave(&mac->lock, flags);
-
- if (!mac->associnfo.associating) {
- /* we race against the timeout function, so make sure
- * only one of us can do work */
- spin_unlock_irqrestore(&mac->lock, flags);
- return 0;
- }
- network = ieee80211softmac_get_network_by_bssid_locked(mac, resp->header.addr3);
-
- /* someone sending us things without us knowing him? Ignore. */
- if (!network) {
- dprintk(KERN_INFO PFX "Received unrequested assocation response from %s\n",
- print_mac(mac2, resp->header.addr3));
- spin_unlock_irqrestore(&mac->lock, flags);
- return 0;
- }
-
- /* now that we know it was for us, we can cancel the timeout */
- cancel_delayed_work(&mac->associnfo.timeout);
-
- /* if the association response included an ERP IE, update our saved
- * copy */
- if (_ieee80211_network->flags & NETWORK_HAS_ERP_VALUE)
- network->erp_value = _ieee80211_network->erp_value;
-
- switch (status) {
- case 0:
- dprintk(KERN_INFO PFX "associated!\n");
- ieee80211softmac_associated(mac, resp, network);
- ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATED, network);
- break;
- case WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH:
- if (!network->auth_desynced_once) {
- /* there seem to be a few rare cases where our view of
- * the world is obscured, or buggy APs that don't DEAUTH
- * us properly. So we handle that, but allow it only once.
- */
- printkl(KERN_INFO PFX "We were not authenticated during association, retrying...\n");
- network->authenticated = 0;
- /* we don't want to do this more than once ... */
- network->auth_desynced_once = 1;
- queue_delayed_work(mac->wq, &mac->associnfo.work, 0);
- break;
- }
- default:
- dprintk(KERN_INFO PFX "associating failed (reason: 0x%x)!\n", status);
- mac->associnfo.associating = 0;
- mac->associnfo.bssvalid = 0;
- mac->associnfo.associated = 0;
- ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, network);
- }
-
- spin_unlock_irqrestore(&mac->lock, flags);
- return 0;
-}
-
-void
-ieee80211softmac_try_reassoc(struct ieee80211softmac_device *mac)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&mac->lock, flags);
- mac->associnfo.associating = 1;
- queue_delayed_work(mac->wq, &mac->associnfo.work, 0);
- spin_unlock_irqrestore(&mac->lock, flags);
-}
-
-int
-ieee80211softmac_handle_disassoc(struct net_device * dev,
- struct ieee80211_disassoc *disassoc)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
-
- if (unlikely(!mac->running))
- return -ENODEV;
-
- if (memcmp(disassoc->header.addr2, mac->associnfo.bssid, ETH_ALEN))
- return 0;
-
- if (memcmp(disassoc->header.addr1, mac->dev->dev_addr, ETH_ALEN))
- return 0;
-
- dprintk(KERN_INFO PFX "got disassoc frame\n");
- ieee80211softmac_disassoc(mac);
-
- ieee80211softmac_try_reassoc(mac);
-
- return 0;
-}
-
-int
-ieee80211softmac_handle_reassoc_req(struct net_device * dev,
- struct ieee80211_reassoc_request * resp)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- struct ieee80211softmac_network *network;
-
- if (unlikely(!mac->running))
- return -ENODEV;
-
- network = ieee80211softmac_get_network_by_bssid(mac, resp->header.addr3);
- if (!network) {
- dprintkl(KERN_INFO PFX "reassoc request from unknown network\n");
- return 0;
- }
- queue_delayed_work(mac->wq, &mac->associnfo.work, 0);
-
- return 0;
-}
+++ /dev/null
-/*
- * This file contains the softmac's authentication logic.
- *
- * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net>
- * Joseph Jezak <josejx@gentoo.org>
- * Larry Finger <Larry.Finger@lwfinger.net>
- * Danny van Dyk <kugelfang@gentoo.org>
- * Michael Buesch <mbuesch@freenet.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-
-#include "ieee80211softmac_priv.h"
-
-static void ieee80211softmac_auth_queue(struct work_struct *work);
-
-/* Queues an auth request to the desired AP */
-int
-ieee80211softmac_auth_req(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *net)
-{
- struct ieee80211softmac_auth_queue_item *auth;
- unsigned long flags;
- DECLARE_MAC_BUF(mac2);
-
- if (net->authenticating || net->authenticated)
- return 0;
- net->authenticating = 1;
-
- /* Add the network if it's not already added */
- ieee80211softmac_add_network(mac, net);
-
- dprintk(KERN_NOTICE PFX "Queueing Authentication Request to %s\n", print_mac(mac2, net->bssid));
- /* Queue the auth request */
- auth = (struct ieee80211softmac_auth_queue_item *)
- kmalloc(sizeof(struct ieee80211softmac_auth_queue_item), GFP_KERNEL);
- if(auth == NULL)
- return -ENOMEM;
-
- auth->net = net;
- auth->mac = mac;
- auth->retry = IEEE80211SOFTMAC_AUTH_RETRY_LIMIT;
- auth->state = IEEE80211SOFTMAC_AUTH_OPEN_REQUEST;
- INIT_DELAYED_WORK(&auth->work, ieee80211softmac_auth_queue);
-
- /* Lock (for list) */
- spin_lock_irqsave(&mac->lock, flags);
-
- /* add to list */
- list_add_tail(&auth->list, &mac->auth_queue);
- queue_delayed_work(mac->wq, &auth->work, 0);
- spin_unlock_irqrestore(&mac->lock, flags);
-
- return 0;
-}
-
-
-/* Sends an auth request to the desired AP and handles timeouts */
-static void
-ieee80211softmac_auth_queue(struct work_struct *work)
-{
- struct ieee80211softmac_device *mac;
- struct ieee80211softmac_auth_queue_item *auth;
- struct ieee80211softmac_network *net;
- unsigned long flags;
- DECLARE_MAC_BUF(mac2);
-
- auth = container_of(work, struct ieee80211softmac_auth_queue_item,
- work.work);
- net = auth->net;
- mac = auth->mac;
-
- if(auth->retry > 0) {
- /* Switch to correct channel for this network */
- mac->set_channel(mac->dev, net->channel);
-
- /* Lock and set flags */
- spin_lock_irqsave(&mac->lock, flags);
- if (unlikely(!mac->running)) {
- /* Prevent reschedule on workqueue flush */
- spin_unlock_irqrestore(&mac->lock, flags);
- return;
- }
- net->authenticated = 0;
- /* add a timeout call so we eventually give up waiting for an auth reply */
- queue_delayed_work(mac->wq, &auth->work, IEEE80211SOFTMAC_AUTH_TIMEOUT);
- auth->retry--;
- spin_unlock_irqrestore(&mac->lock, flags);
- if (ieee80211softmac_send_mgt_frame(mac, auth->net, IEEE80211_STYPE_AUTH, auth->state))
- dprintk(KERN_NOTICE PFX "Sending Authentication Request to %s failed (this shouldn't happen, wait for the timeout).\n",
- print_mac(mac2, net->bssid));
- else
- dprintk(KERN_NOTICE PFX "Sent Authentication Request to %s.\n", print_mac(mac2, net->bssid));
- return;
- }
-
- printkl(KERN_WARNING PFX "Authentication timed out with %s\n", print_mac(mac2, net->bssid));
- /* Remove this item from the queue */
- spin_lock_irqsave(&mac->lock, flags);
- net->authenticating = 0;
- ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_AUTH_TIMEOUT, net);
- cancel_delayed_work(&auth->work); /* just to make sure... */
- list_del(&auth->list);
- spin_unlock_irqrestore(&mac->lock, flags);
- /* Free it */
- kfree(auth);
-}
-
-/* Sends a response to an auth challenge (for shared key auth). */
-static void
-ieee80211softmac_auth_challenge_response(struct work_struct *work)
-{
- struct ieee80211softmac_auth_queue_item *aq =
- container_of(work, struct ieee80211softmac_auth_queue_item,
- work.work);
-
- /* Send our response */
- ieee80211softmac_send_mgt_frame(aq->mac, aq->net, IEEE80211_STYPE_AUTH, aq->state);
-}
-
-/* Handle the auth response from the AP
- * This should be registered with ieee80211 as handle_auth
- */
-int
-ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth)
-{
-
- struct list_head *list_ptr;
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- struct ieee80211softmac_auth_queue_item *aq = NULL;
- struct ieee80211softmac_network *net = NULL;
- unsigned long flags;
- u8 * data;
- DECLARE_MAC_BUF(mac2);
-
- if (unlikely(!mac->running))
- return -ENODEV;
-
- /* Find correct auth queue item */
- spin_lock_irqsave(&mac->lock, flags);
- list_for_each(list_ptr, &mac->auth_queue) {
- aq = list_entry(list_ptr, struct ieee80211softmac_auth_queue_item, list);
- net = aq->net;
- if (!memcmp(net->bssid, auth->header.addr2, ETH_ALEN))
- break;
- else
- aq = NULL;
- }
- spin_unlock_irqrestore(&mac->lock, flags);
-
- /* Make sure that we've got an auth queue item for this request */
- if(aq == NULL)
- {
- dprintkl(KERN_DEBUG PFX "Authentication response received from %s but no queue item exists.\n", print_mac(mac2, auth->header.addr2));
- /* Error #? */
- return -1;
- }
-
- /* Check for out of order authentication */
- if(!net->authenticating)
- {
- dprintkl(KERN_DEBUG PFX "Authentication response received from %s but did not request authentication.\n",print_mac(mac2, auth->header.addr2));
- return -1;
- }
-
- /* Parse the auth packet */
- switch(le16_to_cpu(auth->algorithm)) {
- case WLAN_AUTH_OPEN:
- /* Check the status code of the response */
-
- switch(le16_to_cpu(auth->status)) {
- case WLAN_STATUS_SUCCESS:
- /* Update the status to Authenticated */
- spin_lock_irqsave(&mac->lock, flags);
- net->authenticating = 0;
- net->authenticated = 1;
- spin_unlock_irqrestore(&mac->lock, flags);
-
- /* Send event */
- printkl(KERN_NOTICE PFX "Open Authentication completed with %s\n", print_mac(mac2, net->bssid));
- ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_AUTHENTICATED, net);
- break;
- default:
- /* Lock and reset flags */
- spin_lock_irqsave(&mac->lock, flags);
- net->authenticated = 0;
- net->authenticating = 0;
- spin_unlock_irqrestore(&mac->lock, flags);
-
- printkl(KERN_NOTICE PFX "Open Authentication with %s failed, error code: %i\n",
- print_mac(mac2, net->bssid), le16_to_cpup(&auth->status));
- /* Count the error? */
- break;
- }
- goto free_aq;
- break;
- case WLAN_AUTH_SHARED_KEY:
- /* Figure out where we are in the process */
- switch(le16_to_cpu(auth->transaction)) {
- case IEEE80211SOFTMAC_AUTH_SHARED_CHALLENGE:
- /* Check to make sure we have a challenge IE */
- data = (u8 *)auth->info_element;
- if (*data++ != MFIE_TYPE_CHALLENGE) {
- printkl(KERN_NOTICE PFX "Shared Key Authentication failed due to a missing challenge.\n");
- break;
- }
- /* Save the challenge */
- spin_lock_irqsave(&mac->lock, flags);
- net->challenge_len = *data++;
- if (net->challenge_len > WLAN_AUTH_CHALLENGE_LEN)
- net->challenge_len = WLAN_AUTH_CHALLENGE_LEN;
- kfree(net->challenge);
- net->challenge = kmemdup(data, net->challenge_len,
- GFP_ATOMIC);
- if (net->challenge == NULL) {
- printkl(KERN_NOTICE PFX "Shared Key "
- "Authentication failed due to "
- "memory shortage.\n");
- spin_unlock_irqrestore(&mac->lock, flags);
- break;
- }
- aq->state = IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE;
-
- /* We reuse the work struct from the auth request here.
- * It is safe to do so as each one is per-request, and
- * at this point (dealing with authentication response)
- * we have obviously already sent the initial auth
- * request. */
- cancel_delayed_work(&aq->work);
- INIT_DELAYED_WORK(&aq->work, &ieee80211softmac_auth_challenge_response);
- queue_delayed_work(mac->wq, &aq->work, 0);
- spin_unlock_irqrestore(&mac->lock, flags);
- return 0;
- case IEEE80211SOFTMAC_AUTH_SHARED_PASS:
- kfree(net->challenge);
- net->challenge = NULL;
- net->challenge_len = 0;
- /* Check the status code of the response */
- switch(auth->status) {
- case WLAN_STATUS_SUCCESS:
- /* Update the status to Authenticated */
- spin_lock_irqsave(&mac->lock, flags);
- net->authenticating = 0;
- net->authenticated = 1;
- spin_unlock_irqrestore(&mac->lock, flags);
- printkl(KERN_NOTICE PFX "Shared Key Authentication completed with %s\n",
- print_mac(mac2, net->bssid));
- ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_AUTHENTICATED, net);
- break;
- default:
- printkl(KERN_NOTICE PFX "Shared Key Authentication with %s failed, error code: %i\n",
- print_mac(mac2, net->bssid), le16_to_cpup(&auth->status));
- /* Lock and reset flags */
- spin_lock_irqsave(&mac->lock, flags);
- net->authenticating = 0;
- net->authenticated = 0;
- spin_unlock_irqrestore(&mac->lock, flags);
- /* Count the error? */
- break;
- }
- goto free_aq;
- break;
- default:
- printkl(KERN_WARNING PFX "Unhandled Authentication Step: %i\n", auth->transaction);
- break;
- }
- goto free_aq;
- break;
- default:
- /* ERROR */
- goto free_aq;
- break;
- }
- return 0;
-free_aq:
- /* Cancel the timeout */
- spin_lock_irqsave(&mac->lock, flags);
- cancel_delayed_work(&aq->work);
- /* Remove this item from the queue */
- list_del(&aq->list);
- spin_unlock_irqrestore(&mac->lock, flags);
-
- /* Free it */
- kfree(aq);
- return 0;
-}
-
-/*
- * Handle deauthorization
- */
-static void
-ieee80211softmac_deauth_from_net(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *net)
-{
- struct ieee80211softmac_auth_queue_item *aq = NULL;
- struct list_head *list_ptr;
- unsigned long flags;
-
- /* deauthentication implies disassociation */
- ieee80211softmac_disassoc(mac);
-
- /* Lock and reset status flags */
- spin_lock_irqsave(&mac->lock, flags);
- net->authenticating = 0;
- net->authenticated = 0;
-
- /* Find correct auth queue item, if it exists */
- list_for_each(list_ptr, &mac->auth_queue) {
- aq = list_entry(list_ptr, struct ieee80211softmac_auth_queue_item, list);
- if (!memcmp(net->bssid, aq->net->bssid, ETH_ALEN))
- break;
- else
- aq = NULL;
- }
-
- /* Cancel pending work */
- if(aq != NULL)
- /* Not entirely safe? What about running work? */
- cancel_delayed_work(&aq->work);
-
- /* Free our network ref */
- ieee80211softmac_del_network_locked(mac, net);
- if(net->challenge != NULL)
- kfree(net->challenge);
- kfree(net);
-
- /* can't transmit data right now... */
- netif_carrier_off(mac->dev);
- spin_unlock_irqrestore(&mac->lock, flags);
-
- ieee80211softmac_try_reassoc(mac);
-}
-
-/*
- * Sends a deauth request to the desired AP
- */
-int
-ieee80211softmac_deauth_req(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *net, int reason)
-{
- int ret;
-
- /* Make sure the network is authenticated */
- if (!net->authenticated)
- {
- dprintkl(KERN_DEBUG PFX "Can't send deauthentication packet, network is not authenticated.\n");
- /* Error okay? */
- return -EPERM;
- }
-
- /* Send the de-auth packet */
- if((ret = ieee80211softmac_send_mgt_frame(mac, net, IEEE80211_STYPE_DEAUTH, reason)))
- return ret;
-
- ieee80211softmac_deauth_from_net(mac, net);
- return 0;
-}
-
-/*
- * This should be registered with ieee80211 as handle_deauth
- */
-int
-ieee80211softmac_deauth_resp(struct net_device *dev, struct ieee80211_deauth *deauth)
-{
-
- struct ieee80211softmac_network *net = NULL;
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- DECLARE_MAC_BUF(mac2);
-
- if (unlikely(!mac->running))
- return -ENODEV;
-
- if (!deauth) {
- dprintk("deauth without deauth packet. eek!\n");
- return 0;
- }
-
- net = ieee80211softmac_get_network_by_bssid(mac, deauth->header.addr2);
-
- if (net == NULL) {
- dprintkl(KERN_DEBUG PFX "Received deauthentication packet from %s, but that network is unknown.\n",
- print_mac(mac2, deauth->header.addr2));
- return 0;
- }
-
- /* Make sure the network is authenticated */
- if(!net->authenticated)
- {
- dprintkl(KERN_DEBUG PFX "Can't perform deauthentication, network is not authenticated.\n");
- /* Error okay? */
- return -EPERM;
- }
-
- ieee80211softmac_deauth_from_net(mac, net);
-
- /* let's try to re-associate */
- queue_delayed_work(mac->wq, &mac->associnfo.work, 0);
- return 0;
-}
+++ /dev/null
-/*
- * Event system
- * Also see comments in public header file and longer explanation below.
- *
- * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net>
- * Joseph Jezak <josejx@gentoo.org>
- * Larry Finger <Larry.Finger@lwfinger.net>
- * Danny van Dyk <kugelfang@gentoo.org>
- * Michael Buesch <mbuesch@freenet.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-
-#include "ieee80211softmac_priv.h"
-
-/*
- * Each event has associated to it
- * - an event type (see constants in public header)
- * - an event context (see below)
- * - the function to be called
- * - a context (extra parameter to call the function with)
- * - and the softmac struct
- *
- * The event context is private and can only be used from
- * within this module. Its meaning varies with the event
- * type:
- * SCAN_FINISHED,
- * DISASSOCIATED: NULL
- * ASSOCIATED,
- * ASSOCIATE_FAILED,
- * ASSOCIATE_TIMEOUT,
- * AUTHENTICATED,
- * AUTH_FAILED,
- * AUTH_TIMEOUT: a pointer to the network struct
- * ...
- * Code within this module can use the event context to be only
- * called when the event is true for that specific context
- * as per above table.
- * If the event context is NULL, then the notification is always called,
- * regardless of the event context. The event context is not passed to
- * the callback, it is assumed that the context suffices.
- *
- * You can also use the event context only by setting the event type
- * to -1 (private use only), in which case you'll be notified
- * whenever the event context matches.
- */
-
-static char *event_descriptions[IEEE80211SOFTMAC_EVENT_LAST+1] = {
- NULL, /* scan finished */
- NULL, /* associated */
- "associating failed",
- "associating timed out",
- "authenticated",
- "authenticating failed",
- "authenticating timed out",
- "associating failed because no suitable network was found",
- NULL, /* disassociated */
-};
-
-
-static void
-ieee80211softmac_notify_callback(struct work_struct *work)
-{
- struct ieee80211softmac_event *pevent =
- container_of(work, struct ieee80211softmac_event, work.work);
- struct ieee80211softmac_event event = *pevent;
- kfree(pevent);
-
- event.fun(event.mac->dev, event.event_type, event.context);
-}
-
-int
-ieee80211softmac_notify_internal(struct ieee80211softmac_device *mac,
- int event, void *event_context, notify_function_ptr fun, void *context, gfp_t gfp_mask)
-{
- struct ieee80211softmac_event *eventptr;
- unsigned long flags;
-
- if (event < -1 || event > IEEE80211SOFTMAC_EVENT_LAST)
- return -ENOSYS;
-
- if (!fun)
- return -EINVAL;
-
- eventptr = kmalloc(sizeof(struct ieee80211softmac_event), gfp_mask);
- if (!eventptr)
- return -ENOMEM;
-
- eventptr->event_type = event;
- INIT_DELAYED_WORK(&eventptr->work, ieee80211softmac_notify_callback);
- eventptr->fun = fun;
- eventptr->context = context;
- eventptr->mac = mac;
- eventptr->event_context = event_context;
-
- spin_lock_irqsave(&mac->lock, flags);
- list_add(&eventptr->list, &mac->events);
- spin_unlock_irqrestore(&mac->lock, flags);
-
- return 0;
-}
-
-int
-ieee80211softmac_notify_gfp(struct net_device *dev,
- int event, notify_function_ptr fun, void *context, gfp_t gfp_mask)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
-
- if (event < 0 || event > IEEE80211SOFTMAC_EVENT_LAST)
- return -ENOSYS;
-
- return ieee80211softmac_notify_internal(mac, event, NULL, fun, context, gfp_mask);
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_notify_gfp);
-
-/* private -- calling all callbacks that were specified */
-void
-ieee80211softmac_call_events_locked(struct ieee80211softmac_device *mac, int event, void *event_ctx)
-{
- struct ieee80211softmac_event *eventptr, *tmp;
- struct ieee80211softmac_network *network;
-
- if (event >= 0) {
- union iwreq_data wrqu;
- int we_event;
- char *msg = NULL;
-
- memset(&wrqu, '\0', sizeof (union iwreq_data));
-
- switch(event) {
- case IEEE80211SOFTMAC_EVENT_ASSOCIATED:
- network = (struct ieee80211softmac_network *)event_ctx;
- memcpy(wrqu.ap_addr.sa_data, &network->bssid[0], ETH_ALEN);
- /* fall through */
- case IEEE80211SOFTMAC_EVENT_DISASSOCIATED:
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- we_event = SIOCGIWAP;
- break;
- case IEEE80211SOFTMAC_EVENT_SCAN_FINISHED:
- we_event = SIOCGIWSCAN;
- break;
- default:
- msg = event_descriptions[event];
- if (!msg)
- msg = "SOFTMAC EVENT BUG";
- wrqu.data.length = strlen(msg);
- we_event = IWEVCUSTOM;
- break;
- }
- wireless_send_event(mac->dev, we_event, &wrqu, msg);
- }
-
- if (!list_empty(&mac->events))
- list_for_each_entry_safe(eventptr, tmp, &mac->events, list) {
- if ((eventptr->event_type == event || eventptr->event_type == -1)
- && (eventptr->event_context == NULL || eventptr->event_context == event_ctx)) {
- list_del(&eventptr->list);
- /* User may have subscribed to ANY event, so
- * we tell them which event triggered it. */
- eventptr->event_type = event;
- queue_delayed_work(mac->wq, &eventptr->work, 0);
- }
- }
-}
-
-void
-ieee80211softmac_call_events(struct ieee80211softmac_device *mac, int event, void *event_ctx)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&mac->lock, flags);
- ieee80211softmac_call_events_locked(mac, event, event_ctx);
-
- spin_unlock_irqrestore(&mac->lock, flags);
-}
+++ /dev/null
-/*
- * Some parts based on code from net80211
- * Copyright (c) 2001 Atsushi Onoe
- * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "ieee80211softmac_priv.h"
-
-/* Helper functions for inserting data into the frames */
-
-/*
- * Adds an ESSID element to the frame
- *
- */
-static u8 *
-ieee80211softmac_add_essid(u8 *dst, struct ieee80211softmac_essid *essid)
-{
- if (essid) {
- *dst++ = MFIE_TYPE_SSID;
- *dst++ = essid->len;
- memcpy(dst, essid->data, essid->len);
- return dst+essid->len;
- } else {
- *dst++ = MFIE_TYPE_SSID;
- *dst++ = 0;
- return dst;
- }
-}
-
-/* Adds Supported Rates and if required Extended Rates Information Element
- * to the frame, ASSUMES WE HAVE A SORTED LIST OF RATES */
-static u8 *
-ieee80211softmac_frame_add_rates(u8 *dst, const struct ieee80211softmac_ratesinfo *r)
-{
- int cck_len, ofdm_len;
- *dst++ = MFIE_TYPE_RATES;
-
- for(cck_len=0; ieee80211_is_cck_rate(r->rates[cck_len]) && (cck_len < r->count);cck_len++);
-
- if(cck_len > IEEE80211SOFTMAC_MAX_RATES_LEN)
- cck_len = IEEE80211SOFTMAC_MAX_RATES_LEN;
- *dst++ = cck_len;
- memcpy(dst, r->rates, cck_len);
- dst += cck_len;
-
- if(cck_len < r->count){
- for (ofdm_len=0; ieee80211_is_ofdm_rate(r->rates[ofdm_len + cck_len]) && (ofdm_len + cck_len < r->count); ofdm_len++);
- if (ofdm_len > 0) {
- if (ofdm_len > IEEE80211SOFTMAC_MAX_EX_RATES_LEN)
- ofdm_len = IEEE80211SOFTMAC_MAX_EX_RATES_LEN;
- *dst++ = MFIE_TYPE_RATES_EX;
- *dst++ = ofdm_len;
- memcpy(dst, r->rates + cck_len, ofdm_len);
- dst += ofdm_len;
- }
- }
- return dst;
-}
-
-/* Allocate a management frame */
-static u8 *
-ieee80211softmac_alloc_mgt(u32 size)
-{
- u8 * data;
-
- /* Add the header and FCS to the size */
- size = size + IEEE80211_3ADDR_LEN;
- if(size > IEEE80211_DATA_LEN)
- return NULL;
- /* Allocate the frame */
- data = kzalloc(size, GFP_ATOMIC);
- return data;
-}
-
-/*
- * Add a 2 Address Header
- */
-static void
-ieee80211softmac_hdr_2addr(struct ieee80211softmac_device *mac,
- struct ieee80211_hdr_2addr *header, u32 type, u8 *dest)
-{
- /* Fill in the frame control flags */
- header->frame_ctl = cpu_to_le16(type);
- /* Control packets always have WEP turned off */
- if(type > IEEE80211_STYPE_CFENDACK && type < IEEE80211_STYPE_PSPOLL)
- header->frame_ctl |= mac->ieee->sec.level ? cpu_to_le16(IEEE80211_FCTL_PROTECTED) : 0;
-
- /* Fill in the duration */
- header->duration_id = 0;
- /* FIXME: How do I find this?
- * calculate. But most drivers just fill in 0 (except if it's a station id of course) */
-
- /* Fill in the Destination Address */
- if(dest == NULL)
- memset(header->addr1, 0xFF, ETH_ALEN);
- else
- memcpy(header->addr1, dest, ETH_ALEN);
- /* Fill in the Source Address */
- memcpy(header->addr2, mac->ieee->dev->dev_addr, ETH_ALEN);
-
-}
-
-
-/* Add a 3 Address Header */
-static void
-ieee80211softmac_hdr_3addr(struct ieee80211softmac_device *mac,
- struct ieee80211_hdr_3addr *header, u32 type, u8 *dest, u8 *bssid)
-{
- /* This is common with 2addr, so use that instead */
- ieee80211softmac_hdr_2addr(mac, (struct ieee80211_hdr_2addr *)header, type, dest);
-
- /* Fill in the BSS ID */
- if(bssid == NULL)
- memset(header->addr3, 0xFF, ETH_ALEN);
- else
- memcpy(header->addr3, bssid, ETH_ALEN);
-
- /* Fill in the sequence # */
- /* FIXME: I need to add this to the softmac struct
- * shouldn't the sequence number be in ieee80211? */
-}
-
-static __le16
-ieee80211softmac_capabilities(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *net)
-{
- __le16 capability = 0;
-
- /* ESS and IBSS bits are set according to the current mode */
- switch (mac->ieee->iw_mode) {
- case IW_MODE_INFRA:
- capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
- break;
- case IW_MODE_ADHOC:
- capability = cpu_to_le16(WLAN_CAPABILITY_IBSS);
- break;
- case IW_MODE_AUTO:
- capability = cpu_to_le16(net->capabilities &
- (WLAN_CAPABILITY_ESS|WLAN_CAPABILITY_IBSS));
- break;
- default:
- /* bleh. we don't ever go to these modes */
- printk(KERN_ERR PFX "invalid iw_mode!\n");
- break;
- }
-
- /* CF Pollable / CF Poll Request */
- /* Needs to be implemented, for now, the 0's == not supported */
-
- /* Privacy Bit */
- capability |= mac->ieee->sec.level ?
- cpu_to_le16(WLAN_CAPABILITY_PRIVACY) : 0;
-
- /* Short Preamble */
- /* Always supported: we probably won't ever be powering devices which
- * dont support this... */
- capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
-
- /* PBCC */
- /* Not widely used */
-
- /* Channel Agility */
- /* Not widely used */
-
- /* Short Slot */
- /* Will be implemented later */
-
- /* DSSS-OFDM */
- /* Not widely used */
-
- return capability;
-}
-
-/*****************************************************************************
- * Create Management packets
- *****************************************************************************/
-
-/* Creates an association request packet */
-static u32
-ieee80211softmac_assoc_req(struct ieee80211_assoc_request **pkt,
- struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net)
-{
- u8 *data;
- (*pkt) = (struct ieee80211_assoc_request *)ieee80211softmac_alloc_mgt(
- 2 + /* Capability Info */
- 2 + /* Listen Interval */
- /* SSID IE */
- 1 + 1 + IW_ESSID_MAX_SIZE +
- /* Rates IE */
- 1 + 1 + IEEE80211SOFTMAC_MAX_RATES_LEN +
- /* Extended Rates IE */
- 1 + 1 + IEEE80211SOFTMAC_MAX_EX_RATES_LEN +
- /* WPA IE if present */
- mac->wpa.IElen
- /* Other IE's? Optional?
- * Yeah, probably need an extra IE parameter -- lots of vendors like to
- * fill in their own IEs */
- );
- if (unlikely((*pkt) == NULL))
- return 0;
- ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_ASSOC_REQ, net->bssid, net->bssid);
-
- /* Fill in the capabilities */
- (*pkt)->capability = ieee80211softmac_capabilities(mac, net);
-
- /* Fill in Listen Interval (?) */
- (*pkt)->listen_interval = cpu_to_le16(10);
-
- data = (u8 *)(*pkt)->info_element;
- /* Add SSID */
- data = ieee80211softmac_add_essid(data, &net->essid);
- /* Add Rates */
- data = ieee80211softmac_frame_add_rates(data, &mac->ratesinfo);
- /* Add WPA IE */
- if (mac->wpa.IElen && mac->wpa.IE) {
- memcpy(data, mac->wpa.IE, mac->wpa.IElen);
- data += mac->wpa.IElen;
- }
- /* Return the number of used bytes */
- return (data - (u8*)(*pkt));
-}
-
-/* Create a reassociation request packet */
-static u32
-ieee80211softmac_reassoc_req(struct ieee80211_reassoc_request **pkt,
- struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net)
-{
- u8 *data;
- (*pkt) = (struct ieee80211_reassoc_request *)ieee80211softmac_alloc_mgt(
- 2 + /* Capability Info */
- 2 + /* Listen Interval */
- ETH_ALEN + /* AP MAC */
- /* SSID IE */
- 1 + 1 + IW_ESSID_MAX_SIZE +
- /* Rates IE */
- 1 + 1 + IEEE80211SOFTMAC_MAX_RATES_LEN +
- /* Extended Rates IE */
- 1 + 1 + IEEE80211SOFTMAC_MAX_EX_RATES_LEN
- /* Other IE's? */
- );
- if (unlikely((*pkt) == NULL))
- return 0;
- ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_REASSOC_REQ, net->bssid, net->bssid);
-
- /* Fill in the capabilities */
- (*pkt)->capability = ieee80211softmac_capabilities(mac, net);
-
- /* Fill in Listen Interval (?) */
- (*pkt)->listen_interval = cpu_to_le16(10);
- /* Fill in the current AP MAC */
- memcpy((*pkt)->current_ap, mac->ieee->bssid, ETH_ALEN);
-
- data = (u8 *)(*pkt)->info_element;
- /* Add SSID */
- data = ieee80211softmac_add_essid(data, &net->essid);
- /* Add Rates */
- data = ieee80211softmac_frame_add_rates(data, &mac->ratesinfo);
- /* Return packet size */
- return (data - (u8 *)(*pkt));
-}
-
-/* Create an authentication packet */
-static u32
-ieee80211softmac_auth(struct ieee80211_auth **pkt,
- struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net,
- u16 transaction, u16 status, int *encrypt_mpdu)
-{
- u8 *data;
- int auth_mode = mac->ieee->sec.auth_mode;
- int is_shared_response = (auth_mode == WLAN_AUTH_SHARED_KEY
- && transaction == IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE);
-
- /* Allocate Packet */
- (*pkt) = (struct ieee80211_auth *)ieee80211softmac_alloc_mgt(
- 2 + /* Auth Algorithm */
- 2 + /* Auth Transaction Seq */
- 2 + /* Status Code */
- /* Challenge Text IE */
- (is_shared_response ? 1 + 1 + net->challenge_len : 0)
- );
- if (unlikely((*pkt) == NULL))
- return 0;
- ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_AUTH, net->bssid, net->bssid);
-
- /* Algorithm */
- (*pkt)->algorithm = cpu_to_le16(auth_mode);
- /* Transaction */
- (*pkt)->transaction = cpu_to_le16(transaction);
- /* Status */
- (*pkt)->status = cpu_to_le16(status);
-
- data = (u8 *)(*pkt)->info_element;
- /* Challenge Text */
- if (is_shared_response) {
- *data = MFIE_TYPE_CHALLENGE;
- data++;
-
- /* Copy the challenge in */
- *data = net->challenge_len;
- data++;
- memcpy(data, net->challenge, net->challenge_len);
- data += net->challenge_len;
-
- /* Make sure this frame gets encrypted with the shared key */
- *encrypt_mpdu = 1;
- } else
- *encrypt_mpdu = 0;
-
- /* Return the packet size */
- return (data - (u8 *)(*pkt));
-}
-
-/* Create a disassocation or deauthentication packet */
-static u32
-ieee80211softmac_disassoc_deauth(struct ieee80211_disassoc **pkt,
- struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net,
- u16 type, u16 reason)
-{
- /* Allocate Packet */
- (*pkt) = (struct ieee80211_disassoc *)ieee80211softmac_alloc_mgt(2);
- if (unlikely((*pkt) == NULL))
- return 0;
- ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), type, net->bssid, net->bssid);
- /* Reason */
- (*pkt)->reason = cpu_to_le16(reason);
- /* Return the packet size */
- return (2 + IEEE80211_3ADDR_LEN);
-}
-
-/* Create a probe request packet */
-static u32
-ieee80211softmac_probe_req(struct ieee80211_probe_request **pkt,
- struct ieee80211softmac_device *mac, struct ieee80211softmac_essid *essid)
-{
- u8 *data;
- /* Allocate Packet */
- (*pkt) = (struct ieee80211_probe_request *)ieee80211softmac_alloc_mgt(
- /* SSID of requested network */
- 1 + 1 + IW_ESSID_MAX_SIZE +
- /* Rates IE */
- 1 + 1 + IEEE80211SOFTMAC_MAX_RATES_LEN +
- /* Extended Rates IE */
- 1 + 1 + IEEE80211SOFTMAC_MAX_EX_RATES_LEN
- );
- if (unlikely((*pkt) == NULL))
- return 0;
- ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_PROBE_REQ, NULL, NULL);
-
- data = (u8 *)(*pkt)->info_element;
- /* Add ESSID (can be NULL) */
- data = ieee80211softmac_add_essid(data, essid);
- /* Add Rates */
- data = ieee80211softmac_frame_add_rates(data, &mac->ratesinfo);
- /* Return packet size */
- return (data - (u8 *)(*pkt));
-}
-
-/* Create a probe response packet */
-/* FIXME: Not complete */
-static u32
-ieee80211softmac_probe_resp(struct ieee80211_probe_response **pkt,
- struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net)
-{
- u8 *data;
- /* Allocate Packet */
- (*pkt) = (struct ieee80211_probe_response *)ieee80211softmac_alloc_mgt(
- 8 + /* Timestamp */
- 2 + /* Beacon Interval */
- 2 + /* Capability Info */
- /* SSID IE */
- 1 + 1 + IW_ESSID_MAX_SIZE +
- 7 + /* FH Parameter Set */
- 2 + /* DS Parameter Set */
- 8 + /* CF Parameter Set */
- 4 /* IBSS Parameter Set */
- );
- if (unlikely((*pkt) == NULL))
- return 0;
- ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_PROBE_RESP, net->bssid, net->bssid);
- data = (u8 *)(*pkt)->info_element;
-
- /* Return the packet size */
- return (data - (u8 *)(*pkt));
-}
-
-
-/* Sends a manangement packet
- * FIXME: document the use of the arg parameter
- * for _AUTH: (transaction #) | (status << 16)
- */
-int
-ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac,
- void *ptrarg, u32 type, u32 arg)
-{
- void *pkt = NULL;
- u32 pkt_size = 0;
- int encrypt_mpdu = 0;
-
- switch(type) {
- case IEEE80211_STYPE_ASSOC_REQ:
- pkt_size = ieee80211softmac_assoc_req((struct ieee80211_assoc_request **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg);
- break;
- case IEEE80211_STYPE_REASSOC_REQ:
- pkt_size = ieee80211softmac_reassoc_req((struct ieee80211_reassoc_request **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg);
- break;
- case IEEE80211_STYPE_AUTH:
- pkt_size = ieee80211softmac_auth((struct ieee80211_auth **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg, (u16)(arg & 0xFFFF), (u16) (arg >> 16), &encrypt_mpdu);
- break;
- case IEEE80211_STYPE_DISASSOC:
- case IEEE80211_STYPE_DEAUTH:
- pkt_size = ieee80211softmac_disassoc_deauth((struct ieee80211_disassoc **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg, type, (u16)(arg & 0xFFFF));
- break;
- case IEEE80211_STYPE_PROBE_REQ:
- pkt_size = ieee80211softmac_probe_req((struct ieee80211_probe_request **)(&pkt), mac, (struct ieee80211softmac_essid *)ptrarg);
- break;
- case IEEE80211_STYPE_PROBE_RESP:
- pkt_size = ieee80211softmac_probe_resp((struct ieee80211_probe_response **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg);
- break;
- default:
- printkl(KERN_DEBUG PFX "Unsupported Management Frame type: %i\n", type);
- return -EINVAL;
- };
-
- if(pkt_size == 0 || pkt == NULL) {
- printkl(KERN_DEBUG PFX "Error, packet is nonexistant or 0 length\n");
- return -ENOMEM;
- }
-
- /* Send the packet to the ieee80211 layer for tx */
- /* we defined softmac->mgmt_xmit for this. Should we keep it
- * as it is (that means we'd need to wrap this into a txb),
- * modify the prototype (so it matches this function),
- * or get rid of it alltogether?
- * Does this work for you now?
- */
- ieee80211_tx_frame(mac->ieee, (struct ieee80211_hdr *)pkt,
- IEEE80211_3ADDR_LEN, pkt_size, encrypt_mpdu);
-
- kfree(pkt);
- return 0;
-}
-
-/* Beacon handling */
-int ieee80211softmac_handle_beacon(struct net_device *dev,
- struct ieee80211_beacon *beacon,
- struct ieee80211_network *network)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
-
- /* This might race, but we don't really care and it's not worth
- * adding heavyweight locking in this fastpath.
- */
- if (mac->associnfo.associated) {
- if (memcmp(network->bssid, mac->associnfo.bssid, ETH_ALEN) == 0)
- ieee80211softmac_process_erp(mac, network->erp_value);
- }
-
- return 0;
-}
-
+++ /dev/null
-/*
- * Contains some basic softmac functions along with module registration code etc.
- *
- * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net>
- * Joseph Jezak <josejx@gentoo.org>
- * Larry Finger <Larry.Finger@lwfinger.net>
- * Danny van Dyk <kugelfang@gentoo.org>
- * Michael Buesch <mbuesch@freenet.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-
-#include "ieee80211softmac_priv.h"
-#include <linux/sort.h>
-#include <linux/etherdevice.h>
-
-struct net_device *alloc_ieee80211softmac(int sizeof_priv)
-{
- struct ieee80211softmac_device *softmac;
- struct net_device *dev;
-
- dev = alloc_ieee80211(sizeof(*softmac) + sizeof_priv);
- if (!dev)
- return NULL;
- softmac = ieee80211_priv(dev);
- softmac->wq = create_freezeable_workqueue("softmac");
- if (!softmac->wq) {
- free_ieee80211(dev);
- return NULL;
- }
-
- softmac->dev = dev;
- softmac->ieee = netdev_priv(dev);
- spin_lock_init(&softmac->lock);
-
- softmac->ieee->handle_auth = ieee80211softmac_auth_resp;
- softmac->ieee->handle_deauth = ieee80211softmac_deauth_resp;
- softmac->ieee->handle_assoc_response = ieee80211softmac_handle_assoc_response;
- softmac->ieee->handle_reassoc_request = ieee80211softmac_handle_reassoc_req;
- softmac->ieee->handle_disassoc = ieee80211softmac_handle_disassoc;
- softmac->ieee->handle_beacon = ieee80211softmac_handle_beacon;
- softmac->scaninfo = NULL;
-
- softmac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
-
- /* TODO: initialise all the other callbacks in the ieee struct
- * (once they're written)
- */
-
- INIT_LIST_HEAD(&softmac->auth_queue);
- INIT_LIST_HEAD(&softmac->network_list);
- INIT_LIST_HEAD(&softmac->events);
-
- mutex_init(&softmac->associnfo.mutex);
- INIT_DELAYED_WORK(&softmac->associnfo.work, ieee80211softmac_assoc_work);
- INIT_DELAYED_WORK(&softmac->associnfo.timeout, ieee80211softmac_assoc_timeout);
- softmac->start_scan = ieee80211softmac_start_scan_implementation;
- softmac->wait_for_scan = ieee80211softmac_wait_for_scan_implementation;
- softmac->stop_scan = ieee80211softmac_stop_scan_implementation;
-
- /* to start with, we can't send anything ... */
- netif_carrier_off(dev);
-
- return dev;
-}
-EXPORT_SYMBOL_GPL(alloc_ieee80211softmac);
-
-/* Clears the pending work queue items, stops all scans, etc. */
-void
-ieee80211softmac_clear_pending_work(struct ieee80211softmac_device *sm)
-{
- unsigned long flags;
- struct ieee80211softmac_event *eventptr, *eventtmp;
- struct ieee80211softmac_auth_queue_item *authptr, *authtmp;
- struct ieee80211softmac_network *netptr, *nettmp;
-
- ieee80211softmac_stop_scan(sm);
- ieee80211softmac_wait_for_scan(sm);
-
- spin_lock_irqsave(&sm->lock, flags);
- sm->running = 0;
-
- /* Free all pending assoc work items */
- cancel_delayed_work(&sm->associnfo.work);
-
- /* Free all pending scan work items */
- if(sm->scaninfo != NULL)
- cancel_delayed_work(&sm->scaninfo->softmac_scan);
-
- /* Free all pending auth work items */
- list_for_each_entry(authptr, &sm->auth_queue, list)
- cancel_delayed_work(&authptr->work);
-
- /* delete all pending event calls and work items */
- list_for_each_entry_safe(eventptr, eventtmp, &sm->events, list)
- cancel_delayed_work(&eventptr->work);
-
- spin_unlock_irqrestore(&sm->lock, flags);
- flush_workqueue(sm->wq);
-
- /* now we should be save and no longer need locking... */
- spin_lock_irqsave(&sm->lock, flags);
- /* Free all pending auth work items */
- list_for_each_entry_safe(authptr, authtmp, &sm->auth_queue, list) {
- list_del(&authptr->list);
- kfree(authptr);
- }
-
- /* delete all pending event calls and work items */
- list_for_each_entry_safe(eventptr, eventtmp, &sm->events, list) {
- list_del(&eventptr->list);
- kfree(eventptr);
- }
-
- /* Free all networks */
- list_for_each_entry_safe(netptr, nettmp, &sm->network_list, list) {
- ieee80211softmac_del_network_locked(sm, netptr);
- if(netptr->challenge != NULL)
- kfree(netptr->challenge);
- kfree(netptr);
- }
-
- spin_unlock_irqrestore(&sm->lock, flags);
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_clear_pending_work);
-
-void free_ieee80211softmac(struct net_device *dev)
-{
- struct ieee80211softmac_device *sm = ieee80211_priv(dev);
- ieee80211softmac_clear_pending_work(sm);
- kfree(sm->scaninfo);
- kfree(sm->wpa.IE);
- destroy_workqueue(sm->wq);
- free_ieee80211(dev);
-}
-EXPORT_SYMBOL_GPL(free_ieee80211softmac);
-
-static void ieee80211softmac_start_check_rates(struct ieee80211softmac_device *mac)
-{
- struct ieee80211softmac_ratesinfo *ri = &mac->ratesinfo;
- /* I took out the sorting check, we're seperating by modulation now. */
- if (ri->count)
- return;
- /* otherwise assume we hav'em all! */
- if (mac->ieee->modulation & IEEE80211_CCK_MODULATION) {
- ri->rates[ri->count++] = IEEE80211_CCK_RATE_1MB;
- ri->rates[ri->count++] = IEEE80211_CCK_RATE_2MB;
- ri->rates[ri->count++] = IEEE80211_CCK_RATE_5MB;
- ri->rates[ri->count++] = IEEE80211_CCK_RATE_11MB;
- }
- if (mac->ieee->modulation & IEEE80211_OFDM_MODULATION) {
- ri->rates[ri->count++] = IEEE80211_OFDM_RATE_6MB;
- ri->rates[ri->count++] = IEEE80211_OFDM_RATE_9MB;
- ri->rates[ri->count++] = IEEE80211_OFDM_RATE_12MB;
- ri->rates[ri->count++] = IEEE80211_OFDM_RATE_18MB;
- ri->rates[ri->count++] = IEEE80211_OFDM_RATE_24MB;
- ri->rates[ri->count++] = IEEE80211_OFDM_RATE_36MB;
- ri->rates[ri->count++] = IEEE80211_OFDM_RATE_48MB;
- ri->rates[ri->count++] = IEEE80211_OFDM_RATE_54MB;
- }
-}
-
-int ieee80211softmac_ratesinfo_rate_supported(struct ieee80211softmac_ratesinfo *ri, u8 rate)
-{
- int search;
- u8 search_rate;
-
- for (search = 0; search < ri->count; search++) {
- search_rate = ri->rates[search];
- search_rate &= ~IEEE80211_BASIC_RATE_MASK;
- if (rate == search_rate)
- return 1;
- }
-
- return 0;
-}
-
-u8 ieee80211softmac_highest_supported_rate(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_ratesinfo *ri, int basic_only)
-{
- u8 user_rate = mac->txrates.user_rate;
- int i;
-
- if (ri->count == 0)
- return IEEE80211_CCK_RATE_1MB;
-
- for (i = ri->count - 1; i >= 0; i--) {
- u8 rate = ri->rates[i];
- if (basic_only && !(rate & IEEE80211_BASIC_RATE_MASK))
- continue;
- rate &= ~IEEE80211_BASIC_RATE_MASK;
- if (rate > user_rate)
- continue;
- if (ieee80211softmac_ratesinfo_rate_supported(&mac->ratesinfo, rate))
- return rate;
- }
-
- /* If we haven't found a suitable rate by now, just trust the user */
- return user_rate;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_highest_supported_rate);
-
-void ieee80211softmac_process_erp(struct ieee80211softmac_device *mac,
- u8 erp_value)
-{
- int use_protection;
- int short_preamble;
- u32 changes = 0;
-
- /* Barker preamble mode */
- short_preamble = ((erp_value & WLAN_ERP_BARKER_PREAMBLE) == 0
- && mac->associnfo.short_preamble_available) ? 1 : 0;
-
- /* Protection needed? */
- use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
-
- if (mac->bssinfo.short_preamble != short_preamble) {
- changes |= IEEE80211SOFTMAC_BSSINFOCHG_SHORT_PREAMBLE;
- mac->bssinfo.short_preamble = short_preamble;
- }
-
- if (mac->bssinfo.use_protection != use_protection) {
- changes |= IEEE80211SOFTMAC_BSSINFOCHG_PROTECTION;
- mac->bssinfo.use_protection = use_protection;
- }
-
- if (mac->bssinfo_change && changes)
- mac->bssinfo_change(mac->dev, changes);
-}
-
-void ieee80211softmac_recalc_txrates(struct ieee80211softmac_device *mac)
-{
- struct ieee80211softmac_txrates *txrates = &mac->txrates;
- u32 change = 0;
-
- change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT;
- txrates->default_rate = ieee80211softmac_highest_supported_rate(mac, &mac->bssinfo.supported_rates, 0);
-
- change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK;
- txrates->default_fallback = lower_rate(mac, txrates->default_rate);
-
- change |= IEEE80211SOFTMAC_TXRATECHG_MCAST;
- txrates->mcast_rate = ieee80211softmac_highest_supported_rate(mac, &mac->bssinfo.supported_rates, 1);
-
- if (mac->txrates_change)
- mac->txrates_change(mac->dev, change);
-
-}
-
-void ieee80211softmac_init_bss(struct ieee80211softmac_device *mac)
-{
- struct ieee80211_device *ieee = mac->ieee;
- u32 change = 0;
- struct ieee80211softmac_txrates *txrates = &mac->txrates;
- struct ieee80211softmac_bss_info *bssinfo = &mac->bssinfo;
-
- /* TODO: We need some kind of state machine to lower the default rates
- * if we loose too many packets.
- */
- /* Change the default txrate to the highest possible value.
- * The txrate machine will lower it, if it is too high.
- */
- if (ieee->modulation & IEEE80211_OFDM_MODULATION)
- txrates->user_rate = IEEE80211_OFDM_RATE_24MB;
- else
- txrates->user_rate = IEEE80211_CCK_RATE_11MB;
-
- txrates->default_rate = IEEE80211_CCK_RATE_1MB;
- change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT;
-
- txrates->default_fallback = IEEE80211_CCK_RATE_1MB;
- change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK;
-
- txrates->mcast_rate = IEEE80211_CCK_RATE_1MB;
- change |= IEEE80211SOFTMAC_TXRATECHG_MCAST;
-
- txrates->mgt_mcast_rate = IEEE80211_CCK_RATE_1MB;
- change |= IEEE80211SOFTMAC_TXRATECHG_MGT_MCAST;
-
- if (mac->txrates_change)
- mac->txrates_change(mac->dev, change);
-
- change = 0;
-
- bssinfo->supported_rates.count = 0;
- memset(bssinfo->supported_rates.rates, 0,
- sizeof(bssinfo->supported_rates.rates));
- change |= IEEE80211SOFTMAC_BSSINFOCHG_RATES;
-
- bssinfo->short_preamble = 0;
- change |= IEEE80211SOFTMAC_BSSINFOCHG_SHORT_PREAMBLE;
-
- bssinfo->use_protection = 0;
- change |= IEEE80211SOFTMAC_BSSINFOCHG_PROTECTION;
-
- if (mac->bssinfo_change)
- mac->bssinfo_change(mac->dev, change);
-
- mac->running = 1;
-}
-
-void ieee80211softmac_start(struct net_device *dev)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
-
- ieee80211softmac_start_check_rates(mac);
- ieee80211softmac_init_bss(mac);
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_start);
-
-void ieee80211softmac_stop(struct net_device *dev)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
-
- ieee80211softmac_clear_pending_work(mac);
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_stop);
-
-void ieee80211softmac_set_rates(struct net_device *dev, u8 count, u8 *rates)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- unsigned long flags;
-
- spin_lock_irqsave(&mac->lock, flags);
- memcpy(mac->ratesinfo.rates, rates, count);
- mac->ratesinfo.count = count;
- spin_unlock_irqrestore(&mac->lock, flags);
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_set_rates);
-
-static u8 raise_rate(struct ieee80211softmac_device *mac, u8 rate)
-{
- int i;
- struct ieee80211softmac_ratesinfo *ri = &mac->ratesinfo;
-
- for (i=0; i<ri->count-1; i++) {
- if (ri->rates[i] == rate)
- return ri->rates[i+1];
- }
- /* I guess we can't go any higher... */
- return ri->rates[ri->count];
-}
-
-u8 ieee80211softmac_lower_rate_delta(struct ieee80211softmac_device *mac, u8 rate, int delta)
-{
- int i;
- struct ieee80211softmac_ratesinfo *ri = &mac->ratesinfo;
-
- for (i=delta; i<ri->count; i++) {
- if (ri->rates[i] == rate)
- return ri->rates[i-delta];
- }
- /* I guess we can't go any lower... */
- return ri->rates[0];
-}
-
-static void ieee80211softmac_add_txrates_badness(struct ieee80211softmac_device *mac,
- int amount)
-{
- u8 default_rate = mac->txrates.default_rate;
- u8 default_fallback = mac->txrates.default_fallback;
- u32 changes = 0;
-
- //TODO: This is highly experimental code.
- // Maybe the dynamic rate selection does not work
- // and it has to be removed again.
-
-printk("badness %d\n", mac->txrate_badness);
- mac->txrate_badness += amount;
- if (mac->txrate_badness <= -1000) {
- /* Very small badness. Try a faster bitrate. */
- default_rate = raise_rate(mac, default_rate);
- changes |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT;
- default_fallback = get_fallback_rate(mac, default_rate);
- changes |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK;
- mac->txrate_badness = 0;
-printk("Bitrate raised to %u\n", default_rate);
- } else if (mac->txrate_badness >= 10000) {
- /* Very high badness. Try a slower bitrate. */
- default_rate = lower_rate(mac, default_rate);
- changes |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT;
- default_fallback = get_fallback_rate(mac, default_rate);
- changes |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK;
- mac->txrate_badness = 0;
-printk("Bitrate lowered to %u\n", default_rate);
- }
-
- mac->txrates.default_rate = default_rate;
- mac->txrates.default_fallback = default_fallback;
-
- if (changes && mac->txrates_change)
- mac->txrates_change(mac->dev, changes);
-}
-
-void ieee80211softmac_fragment_lost(struct net_device *dev,
- u16 wl_seq)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- unsigned long flags;
-
- spin_lock_irqsave(&mac->lock, flags);
- ieee80211softmac_add_txrates_badness(mac, 1000);
- //TODO
-
- spin_unlock_irqrestore(&mac->lock, flags);
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_fragment_lost);
-
-static int rate_cmp(const void *a_, const void *b_) {
- u8 *a, *b;
- a = (u8*)a_;
- b = (u8*)b_;
- return ((*a & ~IEEE80211_BASIC_RATE_MASK) - (*b & ~IEEE80211_BASIC_RATE_MASK));
-}
-
-/* Allocate a softmac network struct and fill it from a network */
-struct ieee80211softmac_network *
-ieee80211softmac_create_network(struct ieee80211softmac_device *mac,
- struct ieee80211_network *net)
-{
- struct ieee80211softmac_network *softnet;
- softnet = kzalloc(sizeof(struct ieee80211softmac_network), GFP_ATOMIC);
- if(softnet == NULL)
- return NULL;
- memcpy(softnet->bssid, net->bssid, ETH_ALEN);
- softnet->channel = net->channel;
- softnet->essid.len = net->ssid_len;
- memcpy(softnet->essid.data, net->ssid, softnet->essid.len);
-
- /* copy rates over */
- softnet->supported_rates.count = net->rates_len;
- memcpy(&softnet->supported_rates.rates[0], net->rates, net->rates_len);
- memcpy(&softnet->supported_rates.rates[softnet->supported_rates.count], net->rates_ex, net->rates_ex_len);
- softnet->supported_rates.count += net->rates_ex_len;
- sort(softnet->supported_rates.rates, softnet->supported_rates.count, sizeof(softnet->supported_rates.rates[0]), rate_cmp, NULL);
-
- /* we save the ERP value because it is needed at association time, and
- * many AP's do not include an ERP IE in the association response. */
- softnet->erp_value = net->erp_value;
-
- softnet->capabilities = net->capability;
- return softnet;
-}
-
-
-/* Add a network to the list, while locked */
-void
-ieee80211softmac_add_network_locked(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *add_net)
-{
- struct ieee80211softmac_network *softmac_net;
-
- list_for_each_entry(softmac_net, &mac->network_list, list) {
- if(!memcmp(softmac_net->bssid, add_net->bssid, ETH_ALEN))
- return;
- }
- list_add(&(add_net->list), &mac->network_list);
-}
-
-/* Add a network to the list, with locking */
-void
-ieee80211softmac_add_network(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *add_net)
-{
- unsigned long flags;
- spin_lock_irqsave(&mac->lock, flags);
- ieee80211softmac_add_network_locked(mac, add_net);
- spin_unlock_irqrestore(&mac->lock, flags);
-}
-
-
-/* Delete a network from the list, while locked*/
-void
-ieee80211softmac_del_network_locked(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *del_net)
-{
- list_del(&(del_net->list));
-}
-
-/* Delete a network from the list with locking */
-void
-ieee80211softmac_del_network(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *del_net)
-{
- unsigned long flags;
- spin_lock_irqsave(&mac->lock, flags);
- ieee80211softmac_del_network_locked(mac, del_net);
- spin_unlock_irqrestore(&mac->lock, flags);
-}
-
-/* Get a network from the list by MAC while locked */
-struct ieee80211softmac_network *
-ieee80211softmac_get_network_by_bssid_locked(struct ieee80211softmac_device *mac,
- u8 *bssid)
-{
- struct ieee80211softmac_network *softmac_net;
-
- list_for_each_entry(softmac_net, &mac->network_list, list) {
- if(!memcmp(softmac_net->bssid, bssid, ETH_ALEN))
- return softmac_net;
- }
- return NULL;
-}
-
-/* Get a network from the list by BSSID with locking */
-struct ieee80211softmac_network *
-ieee80211softmac_get_network_by_bssid(struct ieee80211softmac_device *mac,
- u8 *bssid)
-{
- unsigned long flags;
- struct ieee80211softmac_network *softmac_net;
-
- spin_lock_irqsave(&mac->lock, flags);
- softmac_net = ieee80211softmac_get_network_by_bssid_locked(mac, bssid);
- spin_unlock_irqrestore(&mac->lock, flags);
- return softmac_net;
-}
-
-/* Get a network from the list by ESSID while locked */
-struct ieee80211softmac_network *
-ieee80211softmac_get_network_by_essid_locked(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_essid *essid)
-{
- struct ieee80211softmac_network *softmac_net;
-
- list_for_each_entry(softmac_net, &mac->network_list, list) {
- if (softmac_net->essid.len == essid->len &&
- !memcmp(softmac_net->essid.data, essid->data, essid->len))
- return softmac_net;
- }
- return NULL;
-}
-
-/* Get a network from the list by ESSID with locking */
-struct ieee80211softmac_network *
-ieee80211softmac_get_network_by_essid(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_essid *essid)
-{
- unsigned long flags;
- struct ieee80211softmac_network *softmac_net = NULL;
-
- spin_lock_irqsave(&mac->lock, flags);
- softmac_net = ieee80211softmac_get_network_by_essid_locked(mac, essid);
- spin_unlock_irqrestore(&mac->lock, flags);
- return softmac_net;
-}
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Johannes Berg");
-MODULE_AUTHOR("Joseph Jezak");
-MODULE_AUTHOR("Larry Finger");
-MODULE_AUTHOR("Danny van Dyk");
-MODULE_AUTHOR("Michael Buesch");
-MODULE_DESCRIPTION("802.11 software MAC");
+++ /dev/null
-/*
- * Internal softmac API definitions.
- *
- * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net>
- * Joseph Jezak <josejx@gentoo.org>
- * Larry Finger <Larry.Finger@lwfinger.net>
- * Danny van Dyk <kugelfang@gentoo.org>
- * Michael Buesch <mbuesch@freenet.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-
-#ifndef IEEE80211SOFTMAC_PRIV_H_
-#define IEEE80211SOFTMAC_PRIV_H_
-
-#include <net/ieee80211softmac.h>
-#include <net/ieee80211softmac_wx.h>
-#include <linux/kernel.h>
-#include <linux/stringify.h>
-
-
-#define PFX "SoftMAC: "
-
-#ifdef assert
-# undef assert
-#endif
-#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
-#define assert(expr) \
- do { \
- if (unlikely(!(expr))) { \
- printkl(KERN_ERR PFX "ASSERTION FAILED (%s) at: %s:%d:%s()\n", #expr, \
- __FILE__, __LINE__, __func__); \
- } \
- } while (0)
-#else
-#define assert(expr) do {} while (0)
-#endif
-
-/* rate limited printk(). */
-#ifdef printkl
-# undef printkl
-#endif
-#define printkl(f, x...) do { if (printk_ratelimit()) printk(f ,##x); } while (0)
-/* rate limited printk() for debugging */
-#ifdef dprintkl
-# undef dprintkl
-#endif
-#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
-# define dprintkl printkl
-#else
-# define dprintkl(f, x...) do { /* nothing */ } while (0)
-#endif
-
-/* debugging printk() */
-#ifdef dprintk
-# undef dprintk
-#endif
-#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
-# define dprintk(f, x...) do { printk(f ,##x); } while (0)
-#else
-# define dprintk(f, x...) do { /* nothing */ } while (0)
-#endif
-
-/* private definitions and prototypes */
-
-/*** prototypes from _scan.c */
-void ieee80211softmac_scan(struct work_struct *work);
-/* for internal use if scanning is needed */
-int ieee80211softmac_start_scan(struct ieee80211softmac_device *mac);
-void ieee80211softmac_stop_scan(struct ieee80211softmac_device *mac);
-void ieee80211softmac_wait_for_scan(struct ieee80211softmac_device *mac);
-
-/* for use by _module.c to assign to the callbacks */
-int ieee80211softmac_start_scan_implementation(struct net_device *dev);
-void ieee80211softmac_stop_scan_implementation(struct net_device *dev);
-void ieee80211softmac_wait_for_scan_implementation(struct net_device *dev);
-
-/*** Network prototypes from _module.c */
-struct ieee80211softmac_network * ieee80211softmac_create_network(
- struct ieee80211softmac_device *mac, struct ieee80211_network *net);
-void ieee80211softmac_add_network_locked(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *net);
-void ieee80211softmac_add_network(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *net);
-void ieee80211softmac_del_network_locked(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *net);
-void ieee80211softmac_del_network(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_network *net);
-struct ieee80211softmac_network * ieee80211softmac_get_network_by_bssid_locked(
- struct ieee80211softmac_device *mac, u8 *ea);
-struct ieee80211softmac_network * ieee80211softmac_get_network_by_bssid(
- struct ieee80211softmac_device *mac, u8 *ea);
-struct ieee80211softmac_network * ieee80211softmac_get_network_by_ssid_locked(
- struct ieee80211softmac_device *mac, u8 *ssid, u8 ssid_len);
-struct ieee80211softmac_network * ieee80211softmac_get_network_by_ssid(
- struct ieee80211softmac_device *mac, u8 *ssid, u8 ssid_len);
-struct ieee80211softmac_network *
-ieee80211softmac_get_network_by_essid_locked(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_essid *essid);
-struct ieee80211softmac_network *
-ieee80211softmac_get_network_by_essid(struct ieee80211softmac_device *mac,
- struct ieee80211softmac_essid *essid);
-
-/* Rates related */
-void ieee80211softmac_process_erp(struct ieee80211softmac_device *mac,
- u8 erp_value);
-int ieee80211softmac_ratesinfo_rate_supported(struct ieee80211softmac_ratesinfo *ri, u8 rate);
-u8 ieee80211softmac_lower_rate_delta(struct ieee80211softmac_device *mac, u8 rate, int delta);
-void ieee80211softmac_init_bss(struct ieee80211softmac_device *mac);
-void ieee80211softmac_recalc_txrates(struct ieee80211softmac_device *mac);
-static inline u8 lower_rate(struct ieee80211softmac_device *mac, u8 rate) {
- return ieee80211softmac_lower_rate_delta(mac, rate, 1);
-}
-
-static inline u8 get_fallback_rate(struct ieee80211softmac_device *mac, u8 rate)
-{
- return ieee80211softmac_lower_rate_delta(mac, rate, 2);
-}
-
-
-/*** prototypes from _io.c */
-int ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac,
- void* ptrarg, u32 type, u32 arg);
-int ieee80211softmac_handle_beacon(struct net_device *dev,
- struct ieee80211_beacon *beacon,
- struct ieee80211_network *network);
-
-/*** prototypes from _auth.c */
-/* do these have to go into the public header? */
-int ieee80211softmac_auth_req(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net);
-int ieee80211softmac_deauth_req(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net, int reason);
-
-/* for use by _module.c to assign to the callbacks */
-int ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth);
-int ieee80211softmac_deauth_resp(struct net_device *dev, struct ieee80211_deauth *deauth);
-
-/*** prototypes from _assoc.c */
-void ieee80211softmac_assoc_work(struct work_struct *work);
-int ieee80211softmac_handle_assoc_response(struct net_device * dev,
- struct ieee80211_assoc_response * resp,
- struct ieee80211_network * network);
-int ieee80211softmac_handle_disassoc(struct net_device * dev,
- struct ieee80211_disassoc * disassoc);
-int ieee80211softmac_handle_reassoc_req(struct net_device * dev,
- struct ieee80211_reassoc_request * reassoc);
-void ieee80211softmac_assoc_timeout(struct work_struct *work);
-void ieee80211softmac_send_disassoc_req(struct ieee80211softmac_device *mac, u16 reason);
-void ieee80211softmac_disassoc(struct ieee80211softmac_device *mac);
-
-/* some helper functions */
-static inline int ieee80211softmac_scan_handlers_check_self(struct ieee80211softmac_device *sm)
-{
- return (sm->start_scan == ieee80211softmac_start_scan_implementation) &&
- (sm->stop_scan == ieee80211softmac_stop_scan_implementation) &&
- (sm->wait_for_scan == ieee80211softmac_wait_for_scan_implementation);
-}
-
-static inline int ieee80211softmac_scan_sanity_check(struct ieee80211softmac_device *sm)
-{
- return ((sm->start_scan != ieee80211softmac_start_scan_implementation) &&
- (sm->stop_scan != ieee80211softmac_stop_scan_implementation) &&
- (sm->wait_for_scan != ieee80211softmac_wait_for_scan_implementation)
- ) || ieee80211softmac_scan_handlers_check_self(sm);
-}
-
-#define IEEE80211SOFTMAC_PROBE_DELAY HZ/50
-#define IEEE80211SOFTMAC_WORKQUEUE_NAME_LEN (17 + IFNAMSIZ)
-
-struct ieee80211softmac_network {
- struct list_head list; /* List */
- /* Network information copied from ieee80211_network */
- u8 bssid[ETH_ALEN];
- u8 channel;
- struct ieee80211softmac_essid essid;
-
- struct ieee80211softmac_ratesinfo supported_rates;
-
- /* SoftMAC specific */
- u16 authenticating:1, /* Status Flags */
- authenticated:1,
- auth_desynced_once:1;
-
- u8 erp_value; /* Saved ERP value */
- u16 capabilities; /* Capabilities bitfield */
- u8 challenge_len; /* Auth Challenge length */
- char *challenge; /* Challenge Text */
-};
-
-/* structure used to keep track of networks we're auth'ing to */
-struct ieee80211softmac_auth_queue_item {
- struct list_head list; /* List head */
- struct ieee80211softmac_network *net; /* Network to auth */
- struct ieee80211softmac_device *mac; /* SoftMAC device */
- u8 retry; /* Retry limit */
- u8 state; /* Auth State */
- struct delayed_work work; /* Work queue */
-};
-
-/* scanning information */
-struct ieee80211softmac_scaninfo {
- u8 current_channel_idx,
- number_channels;
- struct ieee80211_channel *channels;
- u8 started:1,
- stop:1;
- u8 skip_flags;
- struct completion finished;
- struct delayed_work softmac_scan;
- struct ieee80211softmac_device *mac;
-};
-
-/* private event struct */
-struct ieee80211softmac_event {
- struct list_head list;
- int event_type;
- void *event_context;
- struct delayed_work work;
- notify_function_ptr fun;
- void *context;
- struct ieee80211softmac_device *mac;
-};
-
-void ieee80211softmac_call_events(struct ieee80211softmac_device *mac, int event, void *event_context);
-void ieee80211softmac_call_events_locked(struct ieee80211softmac_device *mac, int event, void *event_context);
-int ieee80211softmac_notify_internal(struct ieee80211softmac_device *mac,
- int event, void *event_context, notify_function_ptr fun, void *context, gfp_t gfp_mask);
-
-void ieee80211softmac_try_reassoc(struct ieee80211softmac_device *mac);
-
-#endif /* IEEE80211SOFTMAC_PRIV_H_ */
+++ /dev/null
-/*
- * Scanning routines.
- *
- * These are not exported because they're assigned to the function pointers.
- *
- * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net>
- * Joseph Jezak <josejx@gentoo.org>
- * Larry Finger <Larry.Finger@lwfinger.net>
- * Danny van Dyk <kugelfang@gentoo.org>
- * Michael Buesch <mbuesch@freenet.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-
-#include <linux/completion.h>
-#include "ieee80211softmac_priv.h"
-
-/* internal, use to trigger scanning if needed.
- * Returns -EBUSY if already scanning,
- * result of start_scan otherwise */
-int
-ieee80211softmac_start_scan(struct ieee80211softmac_device *sm)
-{
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&sm->lock, flags);
- if (sm->scanning)
- {
- spin_unlock_irqrestore(&sm->lock, flags);
- return -EINPROGRESS;
- }
- sm->scanning = 1;
- spin_unlock_irqrestore(&sm->lock, flags);
-
- ret = sm->start_scan(sm->dev);
- if (ret) {
- spin_lock_irqsave(&sm->lock, flags);
- sm->scanning = 0;
- spin_unlock_irqrestore(&sm->lock, flags);
- }
- return ret;
-}
-
-void
-ieee80211softmac_stop_scan(struct ieee80211softmac_device *sm)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&sm->lock, flags);
-
- if (!sm->scanning) {
- spin_unlock_irqrestore(&sm->lock, flags);
- return;
- }
-
- spin_unlock_irqrestore(&sm->lock, flags);
- sm->stop_scan(sm->dev);
-}
-
-void
-ieee80211softmac_wait_for_scan(struct ieee80211softmac_device *sm)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&sm->lock, flags);
-
- if (!sm->scanning) {
- spin_unlock_irqrestore(&sm->lock, flags);
- return;
- }
-
- spin_unlock_irqrestore(&sm->lock, flags);
- sm->wait_for_scan(sm->dev);
-}
-
-
-/* internal scanning implementation follows */
-void ieee80211softmac_scan(struct work_struct *work)
-{
- int invalid_channel;
- u8 current_channel_idx;
- struct ieee80211softmac_scaninfo *si =
- container_of(work, struct ieee80211softmac_scaninfo,
- softmac_scan.work);
- struct ieee80211softmac_device *sm = si->mac;
- unsigned long flags;
-
- while (!(si->stop) && (si->current_channel_idx < si->number_channels)) {
- current_channel_idx = si->current_channel_idx;
- si->current_channel_idx++; /* go to the next channel */
-
- invalid_channel = (si->skip_flags & si->channels[current_channel_idx].flags);
-
- if (!invalid_channel) {
- sm->set_channel(sm->dev, si->channels[current_channel_idx].channel);
- // FIXME make this user configurable (active/passive)
- if(ieee80211softmac_send_mgt_frame(sm, NULL, IEEE80211_STYPE_PROBE_REQ, 0))
- printkl(KERN_DEBUG PFX "Sending Probe Request Failed\n");
-
- /* also send directed management frame for the network we're looking for */
- // TODO: is this if correct, or should we do this only if scanning from assoc request?
- if (sm->associnfo.req_essid.len)
- ieee80211softmac_send_mgt_frame(sm, &sm->associnfo.req_essid, IEEE80211_STYPE_PROBE_REQ, 0);
-
- spin_lock_irqsave(&sm->lock, flags);
- if (unlikely(!sm->running)) {
- /* Prevent reschedule on workqueue flush */
- spin_unlock_irqrestore(&sm->lock, flags);
- break;
- }
- queue_delayed_work(sm->wq, &si->softmac_scan, IEEE80211SOFTMAC_PROBE_DELAY);
- spin_unlock_irqrestore(&sm->lock, flags);
- return;
- } else {
- dprintk(PFX "Not probing Channel %d (not allowed here)\n", si->channels[current_channel_idx].channel);
- }
- }
-
- spin_lock_irqsave(&sm->lock, flags);
- cancel_delayed_work(&si->softmac_scan);
- si->started = 0;
- spin_unlock_irqrestore(&sm->lock, flags);
-
- dprintk(PFX "Scanning finished: scanned %d channels starting with channel %d\n",
- sm->scaninfo->number_channels, sm->scaninfo->channels[0].channel);
- ieee80211softmac_scan_finished(sm);
- complete_all(&sm->scaninfo->finished);
-}
-
-static inline struct ieee80211softmac_scaninfo *allocate_scaninfo(struct ieee80211softmac_device *mac)
-{
- /* ugh. can we call this without having the spinlock held? */
- struct ieee80211softmac_scaninfo *info = kmalloc(sizeof(struct ieee80211softmac_scaninfo), GFP_ATOMIC);
- if (unlikely(!info))
- return NULL;
- INIT_DELAYED_WORK(&info->softmac_scan, ieee80211softmac_scan);
- info->mac = mac;
- init_completion(&info->finished);
- return info;
-}
-
-int ieee80211softmac_start_scan_implementation(struct net_device *dev)
-{
- struct ieee80211softmac_device *sm = ieee80211_priv(dev);
- unsigned long flags;
-
- if (!(dev->flags & IFF_UP))
- return -ENODEV;
-
- assert(ieee80211softmac_scan_handlers_check_self(sm));
- if (!ieee80211softmac_scan_handlers_check_self(sm))
- return -EINVAL;
-
- spin_lock_irqsave(&sm->lock, flags);
- /* it looks like we need to hold the lock here
- * to make sure we don't allocate two of these... */
- if (unlikely(!sm->scaninfo))
- sm->scaninfo = allocate_scaninfo(sm);
- if (unlikely(!sm->scaninfo)) {
- spin_unlock_irqrestore(&sm->lock, flags);
- return -ENOMEM;
- }
-
- sm->scaninfo->skip_flags = IEEE80211_CH_INVALID;
- if (0 /* not scanning in IEEE802.11b */)//TODO
- sm->scaninfo->skip_flags |= IEEE80211_CH_B_ONLY;
- if (0 /* IEEE802.11a */) {//TODO
- sm->scaninfo->channels = sm->ieee->geo.a;
- sm->scaninfo->number_channels = sm->ieee->geo.a_channels;
- } else {
- sm->scaninfo->channels = sm->ieee->geo.bg;
- sm->scaninfo->number_channels = sm->ieee->geo.bg_channels;
- }
- sm->scaninfo->current_channel_idx = 0;
- sm->scaninfo->started = 1;
- sm->scaninfo->stop = 0;
- INIT_COMPLETION(sm->scaninfo->finished);
- queue_delayed_work(sm->wq, &sm->scaninfo->softmac_scan, 0);
- spin_unlock_irqrestore(&sm->lock, flags);
- return 0;
-}
-
-void ieee80211softmac_stop_scan_implementation(struct net_device *dev)
-{
- struct ieee80211softmac_device *sm = ieee80211_priv(dev);
- unsigned long flags;
-
- assert(ieee80211softmac_scan_handlers_check_self(sm));
- if (!ieee80211softmac_scan_handlers_check_self(sm))
- return;
-
- spin_lock_irqsave(&sm->lock, flags);
- assert(sm->scaninfo != NULL);
- if (sm->scaninfo) {
- if (sm->scaninfo->started)
- sm->scaninfo->stop = 1;
- else
- complete_all(&sm->scaninfo->finished);
- }
- spin_unlock_irqrestore(&sm->lock, flags);
-}
-
-void ieee80211softmac_wait_for_scan_implementation(struct net_device *dev)
-{
- struct ieee80211softmac_device *sm = ieee80211_priv(dev);
- unsigned long flags;
-
- assert(ieee80211softmac_scan_handlers_check_self(sm));
- if (!ieee80211softmac_scan_handlers_check_self(sm))
- return;
-
- spin_lock_irqsave(&sm->lock, flags);
- if (!sm->scaninfo->started) {
- spin_unlock_irqrestore(&sm->lock, flags);
- return;
- }
- spin_unlock_irqrestore(&sm->lock, flags);
- wait_for_completion(&sm->scaninfo->finished);
-}
-
-/* this is what drivers (that do scanning) call when they're done */
-void ieee80211softmac_scan_finished(struct ieee80211softmac_device *sm)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&sm->lock, flags);
- sm->scanning = 0;
- spin_unlock_irqrestore(&sm->lock, flags);
-
- if (sm->associnfo.bssvalid) {
- struct ieee80211softmac_network *net;
-
- net = ieee80211softmac_get_network_by_bssid(sm, sm->associnfo.bssid);
- if (net)
- sm->set_channel(sm->dev, net->channel);
- }
- ieee80211softmac_call_events(sm, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, NULL);
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_scan_finished);
+++ /dev/null
-/*
- * This file contains our _wx handlers. Make sure you EXPORT_SYMBOL_GPL them
- *
- * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net>
- * Joseph Jezak <josejx@gentoo.org>
- * Larry Finger <Larry.Finger@lwfinger.net>
- * Danny van Dyk <kugelfang@gentoo.org>
- * Michael Buesch <mbuesch@freenet.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-
-#include "ieee80211softmac_priv.h"
-
-#include <net/iw_handler.h>
-/* for is_broadcast_ether_addr and is_zero_ether_addr */
-#include <linux/etherdevice.h>
-
-int
-ieee80211softmac_wx_trigger_scan(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra)
-{
- struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
- return ieee80211softmac_start_scan(sm);
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_trigger_scan);
-
-
-/* if we're still scanning, return -EAGAIN so that userspace tools
- * can get the complete scan results, otherwise return 0. */
-int
-ieee80211softmac_wx_get_scan_results(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra)
-{
- unsigned long flags;
- struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
-
- spin_lock_irqsave(&sm->lock, flags);
- if (sm->scanning) {
- spin_unlock_irqrestore(&sm->lock, flags);
- return -EAGAIN;
- }
- spin_unlock_irqrestore(&sm->lock, flags);
- return ieee80211_wx_get_scan(sm->ieee, info, data, extra);
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_scan_results);
-
-int
-ieee80211softmac_wx_set_essid(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra)
-{
- struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
- struct ieee80211softmac_auth_queue_item *authptr;
- int length = 0;
- DECLARE_MAC_BUF(mac);
-
-check_assoc_again:
- mutex_lock(&sm->associnfo.mutex);
- if((sm->associnfo.associating || sm->associnfo.associated) &&
- (data->essid.flags && data->essid.length)) {
- dprintk(KERN_INFO PFX "Canceling existing associate request!\n");
- /* Cancel assoc work */
- cancel_delayed_work(&sm->associnfo.work);
- /* We don't have to do this, but it's a little cleaner */
- list_for_each_entry(authptr, &sm->auth_queue, list)
- cancel_delayed_work(&authptr->work);
- sm->associnfo.bssvalid = 0;
- sm->associnfo.bssfixed = 0;
- sm->associnfo.associating = 0;
- sm->associnfo.associated = 0;
- /* We must unlock to avoid deadlocks with the assoc workqueue
- * on the associnfo.mutex */
- mutex_unlock(&sm->associnfo.mutex);
- flush_workqueue(sm->wq);
- /* Avoid race! Check assoc status again. Maybe someone started an
- * association while we flushed. */
- goto check_assoc_again;
- }
-
- sm->associnfo.static_essid = 0;
- sm->associnfo.assoc_wait = 0;
-
- if (data->essid.flags && data->essid.length) {
- length = min((int)data->essid.length, IW_ESSID_MAX_SIZE);
- if (length) {
- memcpy(sm->associnfo.req_essid.data, extra, length);
- sm->associnfo.static_essid = 1;
- }
- }
-
- /* set our requested ESSID length.
- * If applicable, we have already copied the data in */
- sm->associnfo.req_essid.len = length;
-
- sm->associnfo.associating = 1;
- /* queue lower level code to do work (if necessary) */
- queue_delayed_work(sm->wq, &sm->associnfo.work, 0);
-
- mutex_unlock(&sm->associnfo.mutex);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_essid);
-
-int
-ieee80211softmac_wx_get_essid(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra)
-{
- struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
-
- mutex_lock(&sm->associnfo.mutex);
- /* If all fails, return ANY (empty) */
- data->essid.length = 0;
- data->essid.flags = 0; /* active */
-
- /* If we have a statically configured ESSID then return it */
- if (sm->associnfo.static_essid) {
- data->essid.length = sm->associnfo.req_essid.len;
- data->essid.flags = 1; /* active */
- memcpy(extra, sm->associnfo.req_essid.data, sm->associnfo.req_essid.len);
- dprintk(KERN_INFO PFX "Getting essid from req_essid\n");
- } else if (sm->associnfo.associated || sm->associnfo.associating) {
- /* If we're associating/associated, return that */
- data->essid.length = sm->associnfo.associate_essid.len;
- data->essid.flags = 1; /* active */
- memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len);
- dprintk(KERN_INFO PFX "Getting essid from associate_essid\n");
- }
- mutex_unlock(&sm->associnfo.mutex);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_essid);
-
-int
-ieee80211softmac_wx_set_rate(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
- struct ieee80211_device *ieee = mac->ieee;
- unsigned long flags;
- s32 in_rate = data->bitrate.value;
- u8 rate;
- int is_ofdm = 0;
- int err = -EINVAL;
-
- if (in_rate == -1) {
- if (ieee->modulation & IEEE80211_OFDM_MODULATION)
- in_rate = 24000000;
- else
- in_rate = 11000000;
- }
-
- switch (in_rate) {
- case 1000000:
- rate = IEEE80211_CCK_RATE_1MB;
- break;
- case 2000000:
- rate = IEEE80211_CCK_RATE_2MB;
- break;
- case 5500000:
- rate = IEEE80211_CCK_RATE_5MB;
- break;
- case 11000000:
- rate = IEEE80211_CCK_RATE_11MB;
- break;
- case 6000000:
- rate = IEEE80211_OFDM_RATE_6MB;
- is_ofdm = 1;
- break;
- case 9000000:
- rate = IEEE80211_OFDM_RATE_9MB;
- is_ofdm = 1;
- break;
- case 12000000:
- rate = IEEE80211_OFDM_RATE_12MB;
- is_ofdm = 1;
- break;
- case 18000000:
- rate = IEEE80211_OFDM_RATE_18MB;
- is_ofdm = 1;
- break;
- case 24000000:
- rate = IEEE80211_OFDM_RATE_24MB;
- is_ofdm = 1;
- break;
- case 36000000:
- rate = IEEE80211_OFDM_RATE_36MB;
- is_ofdm = 1;
- break;
- case 48000000:
- rate = IEEE80211_OFDM_RATE_48MB;
- is_ofdm = 1;
- break;
- case 54000000:
- rate = IEEE80211_OFDM_RATE_54MB;
- is_ofdm = 1;
- break;
- default:
- goto out;
- }
-
- spin_lock_irqsave(&mac->lock, flags);
-
- /* Check if correct modulation for this PHY. */
- if (is_ofdm && !(ieee->modulation & IEEE80211_OFDM_MODULATION))
- goto out_unlock;
-
- mac->txrates.user_rate = rate;
- ieee80211softmac_recalc_txrates(mac);
- err = 0;
-
-out_unlock:
- spin_unlock_irqrestore(&mac->lock, flags);
-out:
- return err;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_rate);
-
-int
-ieee80211softmac_wx_get_rate(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
- unsigned long flags;
- int err = -EINVAL;
-
- spin_lock_irqsave(&mac->lock, flags);
-
- if (unlikely(!mac->running)) {
- err = -ENODEV;
- goto out_unlock;
- }
-
- switch (mac->txrates.default_rate) {
- case IEEE80211_CCK_RATE_1MB:
- data->bitrate.value = 1000000;
- break;
- case IEEE80211_CCK_RATE_2MB:
- data->bitrate.value = 2000000;
- break;
- case IEEE80211_CCK_RATE_5MB:
- data->bitrate.value = 5500000;
- break;
- case IEEE80211_CCK_RATE_11MB:
- data->bitrate.value = 11000000;
- break;
- case IEEE80211_OFDM_RATE_6MB:
- data->bitrate.value = 6000000;
- break;
- case IEEE80211_OFDM_RATE_9MB:
- data->bitrate.value = 9000000;
- break;
- case IEEE80211_OFDM_RATE_12MB:
- data->bitrate.value = 12000000;
- break;
- case IEEE80211_OFDM_RATE_18MB:
- data->bitrate.value = 18000000;
- break;
- case IEEE80211_OFDM_RATE_24MB:
- data->bitrate.value = 24000000;
- break;
- case IEEE80211_OFDM_RATE_36MB:
- data->bitrate.value = 36000000;
- break;
- case IEEE80211_OFDM_RATE_48MB:
- data->bitrate.value = 48000000;
- break;
- case IEEE80211_OFDM_RATE_54MB:
- data->bitrate.value = 54000000;
- break;
- default:
- assert(0);
- goto out_unlock;
- }
- err = 0;
-out_unlock:
- spin_unlock_irqrestore(&mac->lock, flags);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_rate);
-
-int
-ieee80211softmac_wx_get_wap(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
- int err = 0;
-
- mutex_lock(&mac->associnfo.mutex);
- if (mac->associnfo.bssvalid)
- memcpy(data->ap_addr.sa_data, mac->associnfo.bssid, ETH_ALEN);
- else
- memset(data->ap_addr.sa_data, 0xff, ETH_ALEN);
- data->ap_addr.sa_family = ARPHRD_ETHER;
- mutex_unlock(&mac->associnfo.mutex);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_wap);
-
-int
-ieee80211softmac_wx_set_wap(struct net_device *net_dev,
- struct iw_request_info *info,
- union iwreq_data *data,
- char *extra)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
-
- /* sanity check */
- if (data->ap_addr.sa_family != ARPHRD_ETHER) {
- return -EINVAL;
- }
-
- mutex_lock(&mac->associnfo.mutex);
- if (is_broadcast_ether_addr(data->ap_addr.sa_data)) {
- /* the bssid we have is not to be fixed any longer,
- * and we should reassociate to the best AP. */
- mac->associnfo.bssfixed = 0;
- /* force reassociation */
- mac->associnfo.bssvalid = 0;
- if (mac->associnfo.associated)
- queue_delayed_work(mac->wq, &mac->associnfo.work, 0);
- } else if (is_zero_ether_addr(data->ap_addr.sa_data)) {
- /* the bssid we have is no longer fixed */
- mac->associnfo.bssfixed = 0;
- } else {
- if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) {
- if (mac->associnfo.associating || mac->associnfo.associated) {
- /* bssid unchanged and associated or associating - just return */
- goto out;
- }
- } else {
- /* copy new value in data->ap_addr.sa_data to bssid */
- memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN);
- }
- /* tell the other code that this bssid should be used no matter what */
- mac->associnfo.bssfixed = 1;
- /* queue associate if new bssid or (old one again and not associated) */
- queue_delayed_work(mac->wq, &mac->associnfo.work, 0);
- }
-
- out:
- mutex_unlock(&mac->associnfo.mutex);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_wap);
-
-int
-ieee80211softmac_wx_set_genie(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- unsigned long flags;
- int err = 0;
- char *buf;
- int i;
-
- mutex_lock(&mac->associnfo.mutex);
- spin_lock_irqsave(&mac->lock, flags);
- /* bleh. shouldn't be locked for that kmalloc... */
-
- if (wrqu->data.length) {
- if ((wrqu->data.length < 2) || (extra[1]+2 != wrqu->data.length)) {
- /* this is an IE, so the length must be
- * correct. Is it possible though that
- * more than one IE is passed in?
- */
- err = -EINVAL;
- goto out;
- }
- if (mac->wpa.IEbuflen <= wrqu->data.length) {
- buf = kmalloc(wrqu->data.length, GFP_ATOMIC);
- if (!buf) {
- err = -ENOMEM;
- goto out;
- }
- kfree(mac->wpa.IE);
- mac->wpa.IE = buf;
- mac->wpa.IEbuflen = wrqu->data.length;
- }
- memcpy(mac->wpa.IE, extra, wrqu->data.length);
- dprintk(KERN_INFO PFX "generic IE set to ");
- for (i=0;i<wrqu->data.length;i++)
- dprintk("%.2x", (u8)mac->wpa.IE[i]);
- dprintk("\n");
- mac->wpa.IElen = wrqu->data.length;
- } else {
- kfree(mac->wpa.IE);
- mac->wpa.IE = NULL;
- mac->wpa.IElen = 0;
- mac->wpa.IEbuflen = 0;
- }
-
- out:
- spin_unlock_irqrestore(&mac->lock, flags);
- mutex_unlock(&mac->associnfo.mutex);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_genie);
-
-int
-ieee80211softmac_wx_get_genie(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- unsigned long flags;
- int err = 0;
- int space = wrqu->data.length;
-
- mutex_lock(&mac->associnfo.mutex);
- spin_lock_irqsave(&mac->lock, flags);
-
- wrqu->data.length = 0;
-
- if (mac->wpa.IE && mac->wpa.IElen) {
- wrqu->data.length = mac->wpa.IElen;
- if (mac->wpa.IElen <= space)
- memcpy(extra, mac->wpa.IE, mac->wpa.IElen);
- else
- err = -E2BIG;
- }
- spin_unlock_irqrestore(&mac->lock, flags);
- mutex_unlock(&mac->associnfo.mutex);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie);
-
-int
-ieee80211softmac_wx_set_mlme(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- struct iw_mlme *mlme = (struct iw_mlme *)extra;
- u16 reason = mlme->reason_code;
- struct ieee80211softmac_network *net;
- int err = -EINVAL;
-
- mutex_lock(&mac->associnfo.mutex);
-
- if (memcmp(mac->associnfo.bssid, mlme->addr.sa_data, ETH_ALEN)) {
- printk(KERN_DEBUG PFX "wx_set_mlme: requested operation on net we don't use\n");
- goto out;
- }
-
- switch (mlme->cmd) {
- case IW_MLME_DEAUTH:
- net = ieee80211softmac_get_network_by_bssid_locked(mac, mlme->addr.sa_data);
- if (!net) {
- printk(KERN_DEBUG PFX "wx_set_mlme: we should know the net here...\n");
- goto out;
- }
- err = ieee80211softmac_deauth_req(mac, net, reason);
- goto out;
- case IW_MLME_DISASSOC:
- ieee80211softmac_send_disassoc_req(mac, reason);
- mac->associnfo.associated = 0;
- mac->associnfo.associating = 0;
- err = 0;
- goto out;
- default:
- err = -EOPNOTSUPP;
- }
-
-out:
- mutex_unlock(&mac->associnfo.mutex);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_mlme);
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff