Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
This commit is contained in:
Jeff Garzik
Коммит
fa4fa40a99
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@ -0,0 +1,292 @@
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/*
|
||||
* 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_
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||||
|
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#include <linux/kernel.h>
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#include <linux/spinlock.h>
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||||
#include <linux/workqueue.h>
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#include <linux/list.h>
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||||
#include <net/ieee80211.h>
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||||
/* 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
|
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#define IEEE80211SOFTMAC_MAX_EX_RATES_LEN 255
|
||||
|
||||
struct ieee80211softmac_ratesinfo {
|
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u8 count;
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u8 rates[IEEE80211SOFTMAC_MAX_RATES_LEN + IEEE80211SOFTMAC_MAX_EX_RATES_LEN];
|
||||
};
|
||||
|
||||
/* internal structures */
|
||||
struct ieee80211softmac_network;
|
||||
struct ieee80211softmac_scaninfo;
|
||||
|
||||
struct ieee80211softmac_essid {
|
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u8 len;
|
||||
char data[IW_ESSID_MAX_SIZE+1];
|
||||
};
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||||
|
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struct ieee80211softmac_wpa {
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char *IE;
|
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int IElen;
|
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int IEbuflen;
|
||||
};
|
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|
||||
/*
|
||||
* Information about association
|
||||
*
|
||||
* Do we need a lock for this?
|
||||
* We only ever use this structure inlined
|
||||
* into our global struct. I've used its lock,
|
||||
* but maybe we need a local one here?
|
||||
*/
|
||||
struct ieee80211softmac_assoc_info {
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
u8 static_essid:1,
|
||||
associating:1,
|
||||
bssvalid:1;
|
||||
|
||||
/* Scan retries remaining */
|
||||
int scan_retry;
|
||||
|
||||
struct work_struct work;
|
||||
struct work_struct timeout;
|
||||
};
|
||||
|
||||
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 fallback
|
||||
* (If the device supports fallback and hardware-retry)
|
||||
*/
|
||||
u8 mcast_fallback;
|
||||
/* 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;
|
||||
};
|
||||
|
||||
/* 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_MCAST_FBACK (1 << 3) /* mcast_fallback */
|
||||
|
||||
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. */
|
||||
void (*txrates_change)(struct net_device *dev,
|
||||
u32 changes, /* see IEEE80211SOFTMAC_TXRATECHG flags */
|
||||
const struct ieee80211softmac_txrates *rates_before_change);
|
||||
|
||||
/* private stuff follows */
|
||||
/* this lock protects this structure */
|
||||
spinlock_t lock;
|
||||
|
||||
/* couple of flags */
|
||||
u8 scanning:1, /* protects scanning from being done multiple times at once */
|
||||
associated:1;
|
||||
|
||||
struct ieee80211softmac_scaninfo *scaninfo;
|
||||
struct ieee80211softmac_assoc_info associnfo;
|
||||
|
||||
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);
|
||||
|
||||
/* 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
|
||||
/* keep this updated! */
|
||||
#define IEEE80211SOFTMAC_EVENT_LAST 7
|
||||
/*
|
||||
* 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, 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_ */
|
||||
|
|
@ -0,0 +1,94 @@
|
|||
/*
|
||||
* 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);
|
||||
#endif /* _IEEE80211SOFTMAC_WX */
|
||||
|
|
@ -66,3 +66,4 @@ config IEEE80211_CRYPT_TKIP
|
|||
This can be compiled as a modules and it will be called
|
||||
"ieee80211_crypt_tkip".
|
||||
|
||||
source "net/ieee80211/softmac/Kconfig"
|
||||
|
|
|
|||
|
|
@ -10,3 +10,4 @@ ieee80211-objs := \
|
|||
ieee80211_wx.o \
|
||||
ieee80211_geo.o
|
||||
|
||||
obj-$(CONFIG_IEEE80211_SOFTMAC) += softmac/
|
||||
|
|
|
|||
|
|
@ -780,6 +780,80 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
|
|||
return 0;
|
||||
}
|
||||
|
||||
/* Filter out unrelated packets, call ieee80211_rx[_mgt] */
|
||||
int ieee80211_rx_any(struct ieee80211_device *ieee,
|
||||
struct sk_buff *skb, struct ieee80211_rx_stats *stats)
|
||||
{
|
||||
struct ieee80211_hdr_4addr *hdr;
|
||||
int is_packet_for_us;
|
||||
u16 fc;
|
||||
|
||||
if (ieee->iw_mode == IW_MODE_MONITOR)
|
||||
return ieee80211_rx(ieee, skb, stats) ? 0 : -EINVAL;
|
||||
|
||||
hdr = (struct ieee80211_hdr_4addr *)skb->data;
|
||||
fc = le16_to_cpu(hdr->frame_ctl);
|
||||
|
||||
if ((fc & IEEE80211_FCTL_VERS) != 0)
|
||||
return -EINVAL;
|
||||
|
||||
switch (fc & IEEE80211_FCTL_FTYPE) {
|
||||
case IEEE80211_FTYPE_MGMT:
|
||||
ieee80211_rx_mgt(ieee, hdr, stats);
|
||||
return 0;
|
||||
case IEEE80211_FTYPE_DATA:
|
||||
break;
|
||||
case IEEE80211_FTYPE_CTL:
|
||||
return 0;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
is_packet_for_us = 0;
|
||||
switch (ieee->iw_mode) {
|
||||
case IW_MODE_ADHOC:
|
||||
/* our BSS and not from/to DS */
|
||||
if (memcmp(hdr->addr3, ieee->bssid, ETH_ALEN) == 0)
|
||||
if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == 0) {
|
||||
/* promisc: get all */
|
||||
if (ieee->dev->flags & IFF_PROMISC)
|
||||
is_packet_for_us = 1;
|
||||
/* to us */
|
||||
else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0)
|
||||
is_packet_for_us = 1;
|
||||
/* mcast */
|
||||
else if (is_multicast_ether_addr(hdr->addr1))
|
||||
is_packet_for_us = 1;
|
||||
}
|
||||
break;
|
||||
case IW_MODE_INFRA:
|
||||
/* our BSS (== from our AP) and from DS */
|
||||
if (memcmp(hdr->addr2, ieee->bssid, ETH_ALEN) == 0)
|
||||
if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS) {
|
||||
/* promisc: get all */
|
||||
if (ieee->dev->flags & IFF_PROMISC)
|
||||
is_packet_for_us = 1;
|
||||
/* to us */
|
||||
else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0)
|
||||
is_packet_for_us = 1;
|
||||
/* mcast */
|
||||
else if (is_multicast_ether_addr(hdr->addr1)) {
|
||||
/* not our own packet bcasted from AP */
|
||||
if (memcmp(hdr->addr3, ieee->dev->dev_addr, ETH_ALEN))
|
||||
is_packet_for_us = 1;
|
||||
}
|
||||
}
|
||||
break;
|
||||
default:
|
||||
/* ? */
|
||||
break;
|
||||
}
|
||||
|
||||
if (is_packet_for_us)
|
||||
return (ieee80211_rx(ieee, skb, stats) ? 0 : -EINVAL);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define MGMT_FRAME_FIXED_PART_LENGTH 0x24
|
||||
|
||||
static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
|
||||
|
|
|
|||
|
|
@ -0,0 +1,10 @@
|
|||
config IEEE80211_SOFTMAC
|
||||
tristate "Software MAC add-on to the IEEE 802.11 networking stack"
|
||||
depends on IEEE80211 && EXPERIMENTAL
|
||||
---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
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
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
|
||||
|
|
@ -0,0 +1,403 @@
|
|||
/*
|
||||
* 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;
|
||||
function_enter();
|
||||
/* 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");
|
||||
|
||||
/* Change the state to associating */
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
mac->associnfo.associating = 1;
|
||||
mac->associated = 0; /* just to make sure */
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
|
||||
/* Set a timer for timeout */
|
||||
/* FIXME: make timeout configurable */
|
||||
schedule_delayed_work(&mac->associnfo.timeout, 5 * HZ);
|
||||
}
|
||||
|
||||
void
|
||||
ieee80211softmac_assoc_timeout(void *d)
|
||||
{
|
||||
struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d;
|
||||
unsigned long flags;
|
||||
|
||||
function_enter();
|
||||
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
/* we might race against ieee80211softmac_handle_assoc_response,
|
||||
* so make sure only one of us does something */
|
||||
if (!mac->associnfo.associating) {
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
return;
|
||||
}
|
||||
mac->associnfo.associating = 0;
|
||||
mac->associnfo.bssvalid = 0;
|
||||
mac->associated = 0;
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
|
||||
dprintk(KERN_INFO PFX "assoc request timed out!\n");
|
||||
/* FIXME: we need to know the network here. that requires a bit of restructuring */
|
||||
ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT, NULL);
|
||||
}
|
||||
|
||||
/* Sends out a disassociation request to the desired AP */
|
||||
static void
|
||||
ieee80211softmac_disassoc(struct ieee80211softmac_device *mac, u16 reason)
|
||||
{
|
||||
unsigned long flags;
|
||||
struct ieee80211softmac_network *found;
|
||||
function_enter();
|
||||
|
||||
if (mac->associnfo.bssvalid && mac->associated) {
|
||||
found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);
|
||||
if (found)
|
||||
ieee80211softmac_send_mgt_frame(mac, found, IEEE80211_STYPE_DISASSOC, reason);
|
||||
} else if (mac->associnfo.associating) {
|
||||
cancel_delayed_work(&mac->associnfo.timeout);
|
||||
}
|
||||
|
||||
/* Change our state */
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
/* Do NOT clear bssvalid as that will break ieee80211softmac_assoc_work! */
|
||||
mac->associated = 0;
|
||||
mac->associnfo.associating = 0;
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
}
|
||||
|
||||
static inline int
|
||||
we_support_all_basic_rates(struct ieee80211softmac_device *mac, u8 *from, u8 from_len)
|
||||
{
|
||||
int idx, search, found;
|
||||
u8 rate, search_rate;
|
||||
|
||||
for (idx = 0; idx < (from_len); idx++) {
|
||||
rate = (from)[idx];
|
||||
if (!(rate & IEEE80211_BASIC_RATE_MASK))
|
||||
continue;
|
||||
found = 0;
|
||||
rate &= ~IEEE80211_BASIC_RATE_MASK;
|
||||
for (search = 0; search < mac->ratesinfo.count; search++) {
|
||||
search_rate = mac->ratesinfo.rates[search];
|
||||
search_rate &= ~IEEE80211_BASIC_RATE_MASK;
|
||||
if (rate == search_rate) {
|
||||
found = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!found)
|
||||
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;
|
||||
|
||||
/* 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(struct net_device *dev, void *context)
|
||||
{
|
||||
struct ieee80211softmac_device *mac = ieee80211_priv(dev);
|
||||
ieee80211softmac_assoc_work((void*)mac);
|
||||
}
|
||||
|
||||
/* This function is called to handle userspace requests (asynchronously) */
|
||||
void
|
||||
ieee80211softmac_assoc_work(void *d)
|
||||
{
|
||||
struct ieee80211softmac_device *mac = (struct ieee80211softmac_device *)d;
|
||||
struct ieee80211softmac_network *found = NULL;
|
||||
struct ieee80211_network *net = NULL, *best = NULL;
|
||||
unsigned long flags;
|
||||
|
||||
function_enter();
|
||||
|
||||
/* meh */
|
||||
if (mac->associated)
|
||||
ieee80211softmac_disassoc(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT);
|
||||
|
||||
/* try to find the requested network in our list, if we found one already */
|
||||
if (mac->associnfo.bssvalid)
|
||||
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) {
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
mac->associnfo.scan_retry--;
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
|
||||
/* 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, NULL);
|
||||
if (ieee80211softmac_start_scan(mac))
|
||||
dprintk(KERN_INFO PFX "Associate: failed to initiate scan. Is device up?\n");
|
||||
return;
|
||||
}
|
||||
else {
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
mac->associnfo.associating = 0;
|
||||
mac->associated = 0;
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
|
||||
dprintk(KERN_INFO PFX "Unable to find matching network after scan!\n");
|
||||
ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND, NULL);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
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->authenticated) {
|
||||
/* 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)) {
|
||||
dprintk(KERN_INFO PFX "cannot associate without being authenticated, requested authentication\n");
|
||||
ieee80211softmac_notify_internal(mac, IEEE80211SOFTMAC_EVENT_ANY, found, ieee80211softmac_assoc_notify, NULL, GFP_KERNEL);
|
||||
} else {
|
||||
printkl(KERN_WARNING PFX "Not authenticated, but requesting authentication failed. Giving up to associate\n");
|
||||
ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, found);
|
||||
}
|
||||
return;
|
||||
}
|
||||
/* finally! now we can start associating */
|
||||
ieee80211softmac_assoc(mac, found);
|
||||
}
|
||||
|
||||
/* 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)
|
||||
{
|
||||
mac->associnfo.associating = 0;
|
||||
mac->associated = 1;
|
||||
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_do_not_use)
|
||||
{
|
||||
/* NOTE: the network parameter has to be 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;
|
||||
|
||||
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 " MAC_FMT "\n", MAC_ARG(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);
|
||||
|
||||
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;
|
||||
schedule_work(&mac->associnfo.work);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
dprintk(KERN_INFO PFX "associating failed (reason: 0x%x)!\n", status);
|
||||
mac->associnfo.associating = 0;
|
||||
mac->associnfo.bssvalid = 0;
|
||||
mac->associated = 0;
|
||||
ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_FAILED, network);
|
||||
}
|
||||
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
ieee80211softmac_handle_disassoc(struct net_device * dev,
|
||||
struct ieee80211_disassoc *disassoc)
|
||||
{
|
||||
struct ieee80211softmac_device *mac = ieee80211_priv(dev);
|
||||
unsigned long flags;
|
||||
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");
|
||||
netif_carrier_off(dev);
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
mac->associnfo.bssvalid = 0;
|
||||
mac->associated = 0;
|
||||
schedule_work(&mac->associnfo.work);
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
|
||||
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;
|
||||
|
||||
function_enter();
|
||||
|
||||
network = ieee80211softmac_get_network_by_bssid(mac, resp->header.addr3);
|
||||
if (!network) {
|
||||
dprintkl(KERN_INFO PFX "reassoc request from unknown network\n");
|
||||
return 0;
|
||||
}
|
||||
ieee80211softmac_assoc(mac, network);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,376 @@
|
|||
/*
|
||||
* 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(void *data);
|
||||
|
||||
/* 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;
|
||||
|
||||
function_enter();
|
||||
|
||||
if (net->authenticating)
|
||||
return 0;
|
||||
|
||||
/* Add the network if it's not already added */
|
||||
ieee80211softmac_add_network(mac, net);
|
||||
|
||||
dprintk(KERN_NOTICE PFX "Queueing Authentication Request to "MAC_FMT"\n", MAC_ARG(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_WORK(&auth->work, &ieee80211softmac_auth_queue, (void *)auth);
|
||||
|
||||
/* Lock (for list) */
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
|
||||
/* add to list */
|
||||
list_add_tail(&auth->list, &mac->auth_queue);
|
||||
schedule_work(&auth->work);
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* Sends an auth request to the desired AP and handles timeouts */
|
||||
static void
|
||||
ieee80211softmac_auth_queue(void *data)
|
||||
{
|
||||
struct ieee80211softmac_device *mac;
|
||||
struct ieee80211softmac_auth_queue_item *auth;
|
||||
struct ieee80211softmac_network *net;
|
||||
unsigned long flags;
|
||||
|
||||
function_enter();
|
||||
|
||||
auth = (struct ieee80211softmac_auth_queue_item *)data;
|
||||
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);
|
||||
net->authenticated = 0;
|
||||
net->authenticating = 1;
|
||||
/* add a timeout call so we eventually give up waiting for an auth reply */
|
||||
schedule_delayed_work(&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 "MAC_FMT" failed (this shouldn't happen, wait for the timeout).\n", MAC_ARG(net->bssid));
|
||||
else
|
||||
dprintk(KERN_NOTICE PFX "Sent Authentication Request to "MAC_FMT".\n", MAC_ARG(net->bssid));
|
||||
return;
|
||||
}
|
||||
|
||||
printkl(KERN_WARNING PFX "Authentication timed out with "MAC_FMT"\n", MAC_ARG(net->bssid));
|
||||
/* Remove this item from the queue */
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
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);
|
||||
}
|
||||
|
||||
/* 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;
|
||||
|
||||
function_enter();
|
||||
|
||||
/* 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)
|
||||
{
|
||||
printkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but no queue item exists.\n", MAC_ARG(auth->header.addr2));
|
||||
/* Error #? */
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Check for out of order authentication */
|
||||
if(!net->authenticating)
|
||||
{
|
||||
printkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but did not request authentication.\n",MAC_ARG(auth->header.addr2));
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Parse the auth packet */
|
||||
switch(auth->algorithm) {
|
||||
case WLAN_AUTH_OPEN:
|
||||
/* 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);
|
||||
|
||||
/* Send event */
|
||||
printkl(KERN_NOTICE PFX "Open Authentication completed with "MAC_FMT"\n", MAC_ARG(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 "MAC_FMT" failed, error code: %i\n",
|
||||
MAC_ARG(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(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;
|
||||
if(net->challenge != NULL)
|
||||
kfree(net->challenge);
|
||||
net->challenge = kmalloc(net->challenge_len, GFP_ATOMIC);
|
||||
memcpy(net->challenge, data, net->challenge_len);
|
||||
aq->state = IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE;
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
|
||||
/* Switch to correct channel for this network */
|
||||
mac->set_channel(mac->dev, net->channel);
|
||||
|
||||
/* Send our response (How to encrypt?) */
|
||||
ieee80211softmac_send_mgt_frame(mac, aq->net, IEEE80211_STYPE_AUTH, aq->state);
|
||||
break;
|
||||
case IEEE80211SOFTMAC_AUTH_SHARED_PASS:
|
||||
/* 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 "MAC_FMT"\n",
|
||||
MAC_ARG(net->bssid));
|
||||
break;
|
||||
default:
|
||||
printkl(KERN_NOTICE PFX "Shared Key Authentication with "MAC_FMT" failed, error code: %i\n",
|
||||
MAC_ARG(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;
|
||||
|
||||
function_enter();
|
||||
|
||||
/* 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);
|
||||
/* let's try to re-associate */
|
||||
schedule_work(&mac->associnfo.work);
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
}
|
||||
|
||||
/*
|
||||
* Sends a deauth request to the desired AP
|
||||
*/
|
||||
int
|
||||
ieee80211softmac_deauth_req(struct ieee80211softmac_device *mac,
|
||||
struct ieee80211softmac_network *net, int reason)
|
||||
{
|
||||
int ret;
|
||||
|
||||
function_enter();
|
||||
|
||||
/* Make sure the network is authenticated */
|
||||
if (!net->authenticated)
|
||||
{
|
||||
printkl(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);
|
||||
|
||||
function_enter();
|
||||
|
||||
if (!deauth) {
|
||||
dprintk("deauth without deauth packet. eek!\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
net = ieee80211softmac_get_network_by_bssid(mac, deauth->header.addr2);
|
||||
|
||||
if (net == NULL) {
|
||||
printkl(KERN_DEBUG PFX "Received deauthentication packet from "MAC_FMT", but that network is unknown.\n",
|
||||
MAC_ARG(deauth->header.addr2));
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Make sure the network is authenticated */
|
||||
if(!net->authenticated)
|
||||
{
|
||||
printkl(KERN_DEBUG PFX "Can't perform deauthentication, network is not authenticated.\n");
|
||||
/* Error okay? */
|
||||
return -EPERM;
|
||||
}
|
||||
|
||||
ieee80211softmac_deauth_from_net(mac, net);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,159 @@
|
|||
/*
|
||||
* 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: no special meaning
|
||||
* 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] = {
|
||||
"scan finished",
|
||||
"associated",
|
||||
"associating failed",
|
||||
"associating timed out",
|
||||
"authenticated",
|
||||
"authenticating failed",
|
||||
"authenticating timed out",
|
||||
"associating failed because no suitable network was found",
|
||||
};
|
||||
|
||||
|
||||
static void
|
||||
ieee80211softmac_notify_callback(void *d)
|
||||
{
|
||||
struct ieee80211softmac_event event = *(struct ieee80211softmac_event*) d;
|
||||
kfree(d);
|
||||
|
||||
event.fun(event.mac->dev, 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_WORK(&eventptr->work, ieee80211softmac_notify_callback, eventptr);
|
||||
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;
|
||||
union iwreq_data wrqu;
|
||||
char *msg;
|
||||
|
||||
if (event >= 0) {
|
||||
msg = event_descriptions[event];
|
||||
wrqu.data.length = strlen(msg);
|
||||
wireless_send_event(mac->dev, IWEVCUSTOM, &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);
|
||||
schedule_work(&eventptr->work);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
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);
|
||||
}
|
||||
|
|
@ -0,0 +1,474 @@
|
|||
/*
|
||||
* 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 = kmalloc(size, GFP_ATOMIC);
|
||||
memset(data, 0, size);
|
||||
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? */
|
||||
}
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* 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 capability Info */
|
||||
(*pkt)->capability = (mac->ieee->iw_mode == IW_MODE_MASTER) || (mac->ieee->iw_mode == IW_MODE_INFRA) ?
|
||||
cpu_to_le16(WLAN_CAPABILITY_ESS) :
|
||||
cpu_to_le16(WLAN_CAPABILITY_IBSS);
|
||||
/* Need to add this
|
||||
(*pkt)->capability |= mac->ieee->short_slot ?
|
||||
cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME) : 0;
|
||||
*/
|
||||
(*pkt)->capability |= mac->ieee->sec.level ? cpu_to_le16(WLAN_CAPABILITY_PRIVACY) : 0;
|
||||
/* 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 capability Info */
|
||||
(*pkt)->capability = mac->ieee->iw_mode == IW_MODE_MASTER ?
|
||||
cpu_to_le16(WLAN_CAPABILITY_ESS) :
|
||||
cpu_to_le16(WLAN_CAPABILITY_IBSS);
|
||||
/*
|
||||
(*pkt)->capability |= mac->ieee->short_slot ?
|
||||
cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME) : 0;
|
||||
*/
|
||||
(*pkt)->capability |= mac->ieee->sec.level ?
|
||||
cpu_to_le16(WLAN_CAPABILITY_PRIVACY) : 0;
|
||||
|
||||
/* 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)
|
||||
{
|
||||
u8 *data;
|
||||
/* Allocate Packet */
|
||||
(*pkt) = (struct ieee80211_auth *)ieee80211softmac_alloc_mgt(
|
||||
2 + /* Auth Algorithm */
|
||||
2 + /* Auth Transaction Seq */
|
||||
2 + /* Status Code */
|
||||
/* Challenge Text IE */
|
||||
mac->ieee->open_wep ? 0 :
|
||||
1 + 1 + WLAN_AUTH_CHALLENGE_LEN
|
||||
);
|
||||
if (unlikely((*pkt) == NULL))
|
||||
return 0;
|
||||
ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_AUTH, net->bssid, net->bssid);
|
||||
|
||||
/* Algorithm */
|
||||
(*pkt)->algorithm = mac->ieee->open_wep ?
|
||||
cpu_to_le16(WLAN_AUTH_OPEN) :
|
||||
cpu_to_le16(WLAN_AUTH_SHARED_KEY);
|
||||
/* Transaction */
|
||||
(*pkt)->transaction = cpu_to_le16(transaction);
|
||||
/* Status */
|
||||
(*pkt)->status = cpu_to_le16(status);
|
||||
|
||||
data = (u8 *)(*pkt)->info_element;
|
||||
/* Challenge Text */
|
||||
if(!mac->ieee->open_wep){
|
||||
*data = MFIE_TYPE_CHALLENGE;
|
||||
data++;
|
||||
|
||||
/* Copy the challenge in */
|
||||
// *data = challenge length
|
||||
// data += sizeof(u16);
|
||||
// memcpy(data, challenge, challenge length);
|
||||
// data += challenge length;
|
||||
|
||||
/* Add the full size to the packet length */
|
||||
}
|
||||
|
||||
/* 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;
|
||||
|
||||
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));
|
||||
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, pkt_size);
|
||||
|
||||
kfree(pkt);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* Create an rts/cts frame */
|
||||
static u32
|
||||
ieee80211softmac_rts_cts(struct ieee80211_hdr_2addr **pkt,
|
||||
struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net,
|
||||
u32 type)
|
||||
{
|
||||
/* Allocate Packet */
|
||||
(*pkt) = kmalloc(IEEE80211_2ADDR_LEN, GFP_ATOMIC);
|
||||
memset(*pkt, 0, IEEE80211_2ADDR_LEN);
|
||||
if((*pkt) == NULL)
|
||||
return 0;
|
||||
ieee80211softmac_hdr_2addr(mac, (*pkt), type, net->bssid);
|
||||
return IEEE80211_2ADDR_LEN;
|
||||
}
|
||||
|
||||
|
||||
/* Sends a control packet */
|
||||
static int
|
||||
ieee80211softmac_send_ctl_frame(struct ieee80211softmac_device *mac,
|
||||
struct ieee80211softmac_network *net, u32 type, u32 arg)
|
||||
{
|
||||
void *pkt = NULL;
|
||||
u32 pkt_size = 0;
|
||||
|
||||
switch(type) {
|
||||
case IEEE80211_STYPE_RTS:
|
||||
case IEEE80211_STYPE_CTS:
|
||||
pkt_size = ieee80211softmac_rts_cts((struct ieee80211_hdr_2addr **)(&pkt), mac, net, type);
|
||||
break;
|
||||
default:
|
||||
printkl(KERN_DEBUG PFX "Unsupported Control Frame type: %i\n", type);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if(pkt_size == 0)
|
||||
return -ENOMEM;
|
||||
|
||||
/* Send the packet to the ieee80211 layer for tx */
|
||||
ieee80211_tx_frame(mac->ieee, (struct ieee80211_hdr *) pkt, pkt_size);
|
||||
|
||||
kfree(pkt);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,457 @@
|
|||
/*
|
||||
* 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>
|
||||
|
||||
struct net_device *alloc_ieee80211softmac(int sizeof_priv)
|
||||
{
|
||||
struct ieee80211softmac_device *softmac;
|
||||
struct net_device *dev;
|
||||
|
||||
dev = alloc_ieee80211(sizeof(struct ieee80211softmac_device) + sizeof_priv);
|
||||
softmac = ieee80211_priv(dev);
|
||||
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->scaninfo = NULL;
|
||||
|
||||
/* 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);
|
||||
|
||||
INIT_WORK(&softmac->associnfo.work, ieee80211softmac_assoc_work, softmac);
|
||||
INIT_WORK(&softmac->associnfo.timeout, ieee80211softmac_assoc_timeout, softmac);
|
||||
softmac->start_scan = ieee80211softmac_start_scan_implementation;
|
||||
softmac->wait_for_scan = ieee80211softmac_wait_for_scan_implementation;
|
||||
softmac->stop_scan = ieee80211softmac_stop_scan_implementation;
|
||||
|
||||
//TODO: The mcast rate has to be assigned dynamically somewhere (in scanning, association. Not sure...)
|
||||
// It has to be set to the highest rate all stations in the current network can handle.
|
||||
softmac->txrates.mcast_rate = IEEE80211_CCK_RATE_1MB;
|
||||
softmac->txrates.mcast_fallback = IEEE80211_CCK_RATE_1MB;
|
||||
/* This is reassigned in ieee80211softmac_start to sane values. */
|
||||
softmac->txrates.default_rate = IEEE80211_CCK_RATE_1MB;
|
||||
softmac->txrates.default_fallback = IEEE80211_CCK_RATE_1MB;
|
||||
|
||||
/* 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);
|
||||
/* 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_scheduled_work();
|
||||
|
||||
/* 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);
|
||||
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;
|
||||
}
|
||||
}
|
||||
|
||||
void ieee80211softmac_start(struct net_device *dev)
|
||||
{
|
||||
struct ieee80211softmac_device *mac = ieee80211_priv(dev);
|
||||
struct ieee80211_device *ieee = mac->ieee;
|
||||
u32 change = 0;
|
||||
struct ieee80211softmac_txrates oldrates;
|
||||
|
||||
ieee80211softmac_start_check_rates(mac);
|
||||
|
||||
/* 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 (mac->txrates_change)
|
||||
oldrates = mac->txrates;
|
||||
if (ieee->modulation & IEEE80211_OFDM_MODULATION) {
|
||||
mac->txrates.default_rate = IEEE80211_OFDM_RATE_54MB;
|
||||
change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT;
|
||||
mac->txrates.default_fallback = IEEE80211_OFDM_RATE_24MB;
|
||||
change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK;
|
||||
} else if (ieee->modulation & IEEE80211_CCK_MODULATION) {
|
||||
mac->txrates.default_rate = IEEE80211_CCK_RATE_11MB;
|
||||
change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT;
|
||||
mac->txrates.default_fallback = IEEE80211_CCK_RATE_5MB;
|
||||
change |= IEEE80211SOFTMAC_TXRATECHG_DEFAULT_FBACK;
|
||||
} else
|
||||
assert(0);
|
||||
if (mac->txrates_change)
|
||||
mac->txrates_change(dev, change, &oldrates);
|
||||
}
|
||||
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)
|
||||
{
|
||||
struct ieee80211softmac_txrates oldrates;
|
||||
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. */
|
||||
if (mac->txrates_change)
|
||||
memcpy(&oldrates, &mac->txrates, sizeof(oldrates));
|
||||
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. */
|
||||
if (mac->txrates_change)
|
||||
memcpy(&oldrates, &mac->txrates, sizeof(oldrates));
|
||||
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, &oldrates);
|
||||
}
|
||||
|
||||
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);
|
||||
|
||||
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 list_head *list_ptr;
|
||||
struct ieee80211softmac_network *softmac_net = NULL;
|
||||
|
||||
list_for_each(list_ptr, &mac->network_list) {
|
||||
softmac_net = list_entry(list_ptr, struct ieee80211softmac_network, list);
|
||||
if(!memcmp(softmac_net->bssid, add_net->bssid, ETH_ALEN))
|
||||
break;
|
||||
else
|
||||
softmac_net = NULL;
|
||||
}
|
||||
if(softmac_net == NULL)
|
||||
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 list_head *list_ptr;
|
||||
struct ieee80211softmac_network *softmac_net = NULL;
|
||||
list_for_each(list_ptr, &mac->network_list) {
|
||||
softmac_net = list_entry(list_ptr, struct ieee80211softmac_network, list);
|
||||
if(!memcmp(softmac_net->bssid, bssid, ETH_ALEN))
|
||||
break;
|
||||
else
|
||||
softmac_net = NULL;
|
||||
}
|
||||
return softmac_net;
|
||||
}
|
||||
|
||||
/* 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 list_head *list_ptr;
|
||||
struct ieee80211softmac_network *softmac_net = NULL;
|
||||
|
||||
list_for_each(list_ptr, &mac->network_list) {
|
||||
softmac_net = list_entry(list_ptr, struct ieee80211softmac_network, 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");
|
||||
|
|
@ -0,0 +1,239 @@
|
|||
/*
|
||||
* 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__, __FUNCTION__); \
|
||||
} \
|
||||
} 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
|
||||
|
||||
#ifdef function_enter
|
||||
# undef function_enter
|
||||
#endif
|
||||
#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
|
||||
# define function_enter() do { printk(KERN_DEBUG PFX "%s:%d:%s()\n", __FILE__, __LINE__, __FUNCTION__); } while (0)
|
||||
#else
|
||||
# define function_enter() do { /* nothing */ } while (0)
|
||||
#endif
|
||||
|
||||
/* private definitions and prototypes */
|
||||
|
||||
/*** prototypes from _scan.c */
|
||||
void ieee80211softmac_scan(void *sm);
|
||||
/* 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 */
|
||||
u8 ieee80211softmac_lower_rate_delta(struct ieee80211softmac_device *mac, u8 rate, int delta);
|
||||
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);
|
||||
|
||||
/*** 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(void *d);
|
||||
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(void *d);
|
||||
|
||||
/* 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/2
|
||||
#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;
|
||||
|
||||
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 work_struct 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 work_struct softmac_scan;
|
||||
};
|
||||
|
||||
/* private event struct */
|
||||
struct ieee80211softmac_event {
|
||||
struct list_head list;
|
||||
int event_type;
|
||||
void *event_context;
|
||||
struct work_struct 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);
|
||||
|
||||
#endif /* IEEE80211SOFTMAC_PRIV_H_ */
|
||||
|
|
@ -0,0 +1,237 @@
|
|||
/*
|
||||
* 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(void *d)
|
||||
{
|
||||
int invalid_channel;
|
||||
u8 current_channel_idx;
|
||||
struct ieee80211softmac_device *sm = (struct ieee80211softmac_device *)d;
|
||||
struct ieee80211softmac_scaninfo *si = sm->scaninfo;
|
||||
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);
|
||||
schedule_delayed_work(&si->softmac_scan, IEEE80211SOFTMAC_PROBE_DELAY);
|
||||
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\n");
|
||||
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_WORK(&info->softmac_scan, ieee80211softmac_scan, 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;
|
||||
}
|
||||
dprintk(PFX "Start scanning with channel: %d\n", sm->scaninfo->channels[0].channel);
|
||||
dprintk(PFX "Scanning %d channels\n", sm->scaninfo->number_channels);
|
||||
sm->scaninfo->current_channel_idx = 0;
|
||||
sm->scaninfo->started = 1;
|
||||
sm->scaninfo->stop = 0;
|
||||
INIT_COMPLETION(sm->scaninfo->finished);
|
||||
schedule_work(&sm->scaninfo->softmac_scan);
|
||||
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);
|
||||
|
||||
ieee80211softmac_call_events(sm, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, NULL);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(ieee80211softmac_scan_finished);
|
||||
|
|
@ -0,0 +1,412 @@
|
|||
/*
|
||||
* 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>
|
||||
|
||||
|
||||
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);
|
||||
|
||||
|
||||
int
|
||||
ieee80211softmac_wx_get_scan_results(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 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);
|
||||
int length = 0;
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&sm->lock, flags);
|
||||
|
||||
sm->associnfo.static_essid = 0;
|
||||
|
||||
if (data->essid.flags && data->essid.length && extra /*required?*/) {
|
||||
length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE);
|
||||
if (length) {
|
||||
memcpy(sm->associnfo.req_essid.data, extra, length);
|
||||
sm->associnfo.static_essid = 1;
|
||||
}
|
||||
}
|
||||
sm->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
|
||||
|
||||
/* set our requested ESSID length.
|
||||
* If applicable, we have already copied the data in */
|
||||
sm->associnfo.req_essid.len = length;
|
||||
|
||||
/* queue lower level code to do work (if necessary) */
|
||||
schedule_work(&sm->associnfo.work);
|
||||
|
||||
spin_unlock_irqrestore(&sm->lock, flags);
|
||||
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);
|
||||
unsigned long flags;
|
||||
|
||||
/* avoid getting inconsistent information */
|
||||
spin_lock_irqsave(&sm->lock, flags);
|
||||
/* 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);
|
||||
}
|
||||
|
||||
/* If we're associating/associated, return that */
|
||||
if (sm->associated || sm->associnfo.associating) {
|
||||
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);
|
||||
}
|
||||
spin_unlock_irqrestore(&sm->lock, flags);
|
||||
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) {
|
||||
/* automatic detect */
|
||||
if (ieee->modulation & IEEE80211_OFDM_MODULATION)
|
||||
in_rate = 54000000;
|
||||
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.default_rate = rate;
|
||||
mac->txrates.default_fallback = lower_rate(mac, rate);
|
||||
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);
|
||||
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;
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
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;
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
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);
|
||||
static const unsigned char any[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
|
||||
static const unsigned char off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
|
||||
unsigned long flags;
|
||||
|
||||
/* sanity check */
|
||||
if (data->ap_addr.sa_family != ARPHRD_ETHER) {
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
spin_lock_irqsave(&mac->lock, flags);
|
||||
if (!memcmp(any, data->ap_addr.sa_data, ETH_ALEN) ||
|
||||
!memcmp(off, data->ap_addr.sa_data, ETH_ALEN)) {
|
||||
schedule_work(&mac->associnfo.work);
|
||||
goto out;
|
||||
} else {
|
||||
if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) {
|
||||
if (mac->associnfo.associating || mac->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);
|
||||
}
|
||||
/* queue associate if new bssid or (old one again and not associated) */
|
||||
schedule_work(&mac->associnfo.work);
|
||||
}
|
||||
|
||||
out:
|
||||
spin_unlock_irqrestore(&mac->lock, flags);
|
||||
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;
|
||||
|
||||
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", 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);
|
||||
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;
|
||||
|
||||
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);
|
||||
return err;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie);
|
||||
|
||||
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