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New: mac80211 stack from the wireless-dev tree 

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7692 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Peter Denison 2007-06-21 20:42:32 +00:00
parent 3b69e3f923
commit 4fdb427ff0
50 changed files with 23705 additions and 0 deletions
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62
package/mac80211/Makefile Normal file
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#
# Copyright (C) 2007 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
# $Id: Makefile 7440 2007-06-02 02:22:01Z nbd $
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
PKG_NAME:=mac80211
PKG_RELEASE:=1
PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(PKG_NAME)
include $(INCLUDE_DIR)/package.mk
define KernelPackage/mac80211
SUBMENU:=Wireless Drivers
TITLE:=DeviceScape 802.11 Wireless Networking Stack
DEPENDS:=@LINUX_2_6 +kmod-ieee80211
DESCRIPTION:=\
This package contains the DeviceScape 80211 wireless stack.
VERSION:=$(PKG_RELEASE)+$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)
FILES:= \
$(PKG_BUILD_DIR)/mac80211/mac80211.$(LINUX_KMOD_SUFFIX) \
$(PKG_BUILD_DIR)/mac80211/rc80211_lowest.$(LINUX_KMOD_SUFFIX) \
$(PKG_BUILD_DIR)/mac80211/rc80211_simple.$(LINUX_KMOD_SUFFIX) \
$(PKG_BUILD_DIR)/wireless/cfg80211.$(LINUX_KMOD_SUFFIX)
AUTOLOAD:=$(call AutoLoad,20,cfg80211 mac80211 rc80211_lowest rc80211_simple)
endef
define Build/Prepare
mkdir -p $(PKG_BUILD_DIR)/mac80211
$(CP) ./src/mac80211/* $(PKG_BUILD_DIR)/mac80211/
mkdir -p $(PKG_BUILD_DIR)/wireless
$(CP) ./src/wireless/* $(PKG_BUILD_DIR)/wireless/
endef
MAKE_OPTS:=-C "$(LINUX_DIR)" \
CROSS_COMPILE="$(TARGET_CROSS)" \
ARCH="$(LINUX_KARCH)" \
EXTRA_CFLAGS="$(BUILDFLAGS)"
define Build/Compile
$(MAKE) $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/wireless" modules
$(MAKE) $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/mac80211" modules
endef
#define Build/InstallDev
# mkdir -p $(STAGING_DIR)/usr/include/madwifi
# $(CP) $(PKG_BUILD_DIR)/include $(STAGING_DIR)/usr/include/madwifi/
# mkdir -p $(STAGING_DIR)/usr/include/madwifi/net80211
# $(CP) $(PKG_BUILD_DIR)/net80211/*.h $(STAGING_DIR)/usr/include/madwifi/net80211/
#endef
#define Build/UninstallDev
# rm -rf $(STAGING_DIR)/usr/include/madwifi
#endef
$(eval $(call KernelPackage,mac80211))

82
package/mac80211/src/mac80211/Kconfig Normal file
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config MAC80211
tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
depends on EXPERIMENTAL
select CRYPTO
select CRYPTO_ECB
select CRYPTO_ARC4
select CRYPTO_AES
select CRC32
select WIRELESS_EXT
select CFG80211
select NET_SCH_FIFO
---help---
This option enables the hardware independent IEEE 802.11
networking stack.
config MAC80211_LEDS
bool "Enable LED triggers"
depends on MAC80211 && LEDS_TRIGGERS
---help---
This option enables a few LED triggers for different
packet receive/transmit events.
config MAC80211_DEBUGFS
bool "Export mac80211 internals in DebugFS"
depends on MAC80211 && DEBUG_FS
---help---
Select this to see extensive information about
the internal state of mac80211 in debugfs.
Say N unless you know you need this.
config MAC80211_DEBUG
bool "Enable debugging output"
depends on MAC80211
---help---
This option will enable debug tracing output for the
ieee80211 network stack.
If you are not trying to debug or develop the ieee80211
subsystem, you most likely want to say N here.
config MAC80211_VERBOSE_DEBUG
bool "Verbose debugging output"
depends on MAC80211_DEBUG
config MAC80211_LOWTX_FRAME_DUMP
bool "Debug frame dumping"
depends on MAC80211_DEBUG
---help---
Selecting this option will cause the stack to
print a message for each frame that is handed
to the lowlevel driver for transmission. This
message includes all MAC addresses and the
frame control field.
If unsure, say N and insert the debugging code
you require into the driver you are debugging.
config TKIP_DEBUG
bool "TKIP debugging"
depends on MAC80211_DEBUG
config MAC80211_DEBUG_COUNTERS
bool "Extra statistics for TX/RX debugging"
depends on MAC80211_DEBUG
config HOSTAPD_WPA_TESTING
bool "Support for TKIP countermeasures testing"
depends on MAC80211_DEBUG
config MAC80211_IBSS_DEBUG
bool "Support for IBSS testing"
depends on MAC80211_DEBUG
---help---
Say Y here if you intend to debug the IBSS code.
config MAC80211_VERBOSE_PS_DEBUG
bool "Verbose powersave mode debugging"
depends on MAC80211_DEBUG
---help---
Say Y here to print out verbose powersave
mode debug messages.

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obj-$(CONFIG_MAC80211) += mac80211.o rc80211_simple.o rc80211_lowest.o
mac80211-objs-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
mac80211-objs-$(CONFIG_MAC80211_DEBUGFS) += debugfs.o debugfs_sta.o debugfs_netdev.o debugfs_key.o
mac80211-objs := \
ieee80211.o \
ieee80211_ioctl.o \
sta_info.o \
wep.o \
wpa.o \
ieee80211_sta.o \
ieee80211_iface.o \
ieee80211_rate.o \
michael.o \
tkip.o \
aes_ccm.o \
wme.o \
ieee80211_cfg.o \
$(mac80211-objs-y)

155
package/mac80211/src/mac80211/aes_ccm.c Normal file
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/*
* Copyright 2003-2004, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <asm/scatterlist.h>
#include <net/mac80211.h>
#include "ieee80211_key.h"
#include "aes_ccm.h"
static void ieee80211_aes_encrypt(struct crypto_cipher *tfm,
const u8 pt[16], u8 ct[16])
{
crypto_cipher_encrypt_one(tfm, ct, pt);
}
static inline void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
u8 *b, u8 *s_0, u8 *a)
{
int i;
ieee80211_aes_encrypt(tfm, b_0, b);
/* Extra Authenticate-only data (always two AES blocks) */
for (i = 0; i < AES_BLOCK_LEN; i++)
aad[i] ^= b[i];
ieee80211_aes_encrypt(tfm, aad, b);
aad += AES_BLOCK_LEN;
for (i = 0; i < AES_BLOCK_LEN; i++)
aad[i] ^= b[i];
ieee80211_aes_encrypt(tfm, aad, a);
/* Mask out bits from auth-only-b_0 */
b_0[0] &= 0x07;
/* S_0 is used to encrypt T (= MIC) */
b_0[14] = 0;
b_0[15] = 0;
ieee80211_aes_encrypt(tfm, b_0, s_0);
}
void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
u8 *b_0, u8 *aad, u8 *data, size_t data_len,
u8 *cdata, u8 *mic)
{
int i, j, last_len, num_blocks;
u8 *pos, *cpos, *b, *s_0, *e;
b = scratch;
s_0 = scratch + AES_BLOCK_LEN;
e = scratch + 2 * AES_BLOCK_LEN;
num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
last_len = data_len % AES_BLOCK_LEN;
aes_ccm_prepare(tfm, b_0, aad, b, s_0, b);
/* Process payload blocks */
pos = data;
cpos = cdata;
for (j = 1; j <= num_blocks; j++) {
int blen = (j == num_blocks && last_len) ?
last_len : AES_BLOCK_LEN;
/* Authentication followed by encryption */
for (i = 0; i < blen; i++)
b[i] ^= pos[i];
ieee80211_aes_encrypt(tfm, b, b);
b_0[14] = (j >> 8) & 0xff;
b_0[15] = j & 0xff;
ieee80211_aes_encrypt(tfm, b_0, e);
for (i = 0; i < blen; i++)
*cpos++ = *pos++ ^ e[i];
}
for (i = 0; i < CCMP_MIC_LEN; i++)
mic[i] = b[i] ^ s_0[i];
}
int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
u8 *mic, u8 *data)
{
int i, j, last_len, num_blocks;
u8 *pos, *cpos, *b, *s_0, *a;
b = scratch;
s_0 = scratch + AES_BLOCK_LEN;
a = scratch + 2 * AES_BLOCK_LEN;
num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
last_len = data_len % AES_BLOCK_LEN;
aes_ccm_prepare(tfm, b_0, aad, b, s_0, a);
/* Process payload blocks */
cpos = cdata;
pos = data;
for (j = 1; j <= num_blocks; j++) {
int blen = (j == num_blocks && last_len) ?
last_len : AES_BLOCK_LEN;
/* Decryption followed by authentication */
b_0[14] = (j >> 8) & 0xff;
b_0[15] = j & 0xff;
ieee80211_aes_encrypt(tfm, b_0, b);
for (i = 0; i < blen; i++) {
*pos = *cpos++ ^ b[i];
a[i] ^= *pos++;
}
ieee80211_aes_encrypt(tfm, a, a);
}
for (i = 0; i < CCMP_MIC_LEN; i++) {
if ((mic[i] ^ s_0[i]) != a[i])
return -1;
}
return 0;
}
struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[])
{
struct crypto_cipher *tfm;
tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm))
return NULL;
crypto_cipher_setkey(tfm, key, ALG_CCMP_KEY_LEN);
return tfm;
}
void ieee80211_aes_key_free(struct crypto_cipher *tfm)
{
if (tfm)
crypto_free_cipher(tfm);
}

26
package/mac80211/src/mac80211/aes_ccm.h Normal file
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/*
* Copyright 2003-2004, Instant802 Networks, Inc.
* Copyright 2006, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef AES_CCM_H
#define AES_CCM_H
#include <linux/crypto.h>
#define AES_BLOCK_LEN 16
struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[]);
void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
u8 *b_0, u8 *aad, u8 *data, size_t data_len,
u8 *cdata, u8 *mic);
int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
u8 *mic, u8 *data);
void ieee80211_aes_key_free(struct crypto_cipher *tfm);
#endif /* AES_CCM_H */

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package/mac80211/src/mac80211/debugfs.c Normal file
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/*
* mac80211 debugfs for wireless PHYs
*
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
*
* GPLv2
*
*/
#include <linux/debugfs.h>
#include <linux/rtnetlink.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "debugfs.h"
static inline int rtnl_lock_local(struct ieee80211_local *local)
{
rtnl_lock();
if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
rtnl_unlock();
return -ENODEV;
}
return 0;
}
int mac80211_open_file_generic(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static const char *ieee80211_mode_str(int mode)
{
switch (mode) {
case MODE_IEEE80211A:
return "IEEE 802.11a";
case MODE_IEEE80211B:
return "IEEE 802.11b";
case MODE_IEEE80211G:
return "IEEE 802.11g";
case MODE_ATHEROS_TURBO:
return "Atheros Turbo (5 GHz)";
default:
return "UNKNOWN";
}
}
static ssize_t modes_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
struct ieee80211_hw_mode *mode;
char buf[150], *p = buf;
/* FIXME: locking! */
list_for_each_entry(mode, &local->modes_list, list) {
p += scnprintf(p, sizeof(buf)+buf-p,
"%s\n", ieee80211_mode_str(mode->mode));
}
return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
}
static const struct file_operations modes_ops = {
.read = modes_read,
.open = mac80211_open_file_generic,
};
#define DEBUGFS_READ(name, buflen, fmt, value...) \
static ssize_t name## _read(struct file *file, char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
struct ieee80211_local *local = file->private_data; \
char buf[buflen]; \
int res; \
\
res = scnprintf(buf, buflen, fmt "\n", ##value); \
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
} \
#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
DEBUGFS_READ(name, buflen, fmt, ## value) \
static const struct file_operations name## _ops = { \
.read = name## _read, \
.open = mac80211_open_file_generic, \
};
#define DEBUGFS_ADD_MODE(name, mode) \
local->debugfs.name = debugfs_create_file(#name, mode, phyd, \
local, &name## _ops);
#define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0444)
#define DEBUGFS_DEL(name) \
debugfs_remove(local->debugfs.name); \
local->debugfs.name = NULL;
DEBUGFS_READONLY_FILE(channel, 20, "%d",
local->hw.conf.channel);
DEBUGFS_READONLY_FILE(frequency, 20, "%d",
local->hw.conf.freq);
DEBUGFS_READONLY_FILE(radar_detect, 20, "%d",
local->hw.conf.radar_detect);
DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
local->hw.conf.antenna_sel_tx);
DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
local->hw.conf.antenna_sel_rx);
DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d",
local->bridge_packets);
DEBUGFS_READONLY_FILE(key_tx_rx_threshold, 20, "%d",
local->key_tx_rx_threshold);
DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
local->rts_threshold);
DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
local->fragmentation_threshold);
DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
local->short_retry_limit);
DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
local->long_retry_limit);
DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
local->total_ps_buffered);
DEBUGFS_READONLY_FILE(mode, 20, "%s",
ieee80211_mode_str(local->hw.conf.phymode));
DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
local->wep_iv & 0xffffff);
DEBUGFS_READONLY_FILE(tx_power_reduction, 20, "%d.%d dBm",
local->hw.conf.tx_power_reduction / 10,
local->hw.conf.tx_power_reduction & 10);
DEBUGFS_READ(rate_ctrl_alg, 100, "%s",
local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
static ssize_t rate_ctrl_alg_write(struct file *file, const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
char buf[64];
ssize_t buf_size;
int res;
buf_size = min(count, ARRAY_SIZE(buf) - 1);
if (copy_from_user(buf, userbuf, buf_size))
return -EFAULT;
buf[buf_size] = '\0';
res = rtnl_lock_local(local);
if (res)
return res;
res = ieee80211_init_rate_ctrl_alg(local, buf);
rtnl_unlock();
return res < 0 ? res : buf_size;
}
static const struct file_operations rate_ctrl_alg_ops = {
.read = rate_ctrl_alg_read,
.write = rate_ctrl_alg_write,
.open = mac80211_open_file_generic,
};
/* statistics stuff */
#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
static ssize_t format_devstat_counter(struct ieee80211_local *local,
char __user *userbuf,
size_t count, loff_t *ppos,
int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
int buflen))
{
struct ieee80211_low_level_stats stats;
char buf[20];
int res;
if (!local->ops->get_stats)
return -EOPNOTSUPP;
res = rtnl_lock_local(local);
if (res)
return res;
res = local->ops->get_stats(local_to_hw(local), &stats);
rtnl_unlock();
if (!res)
res = printvalue(&stats, buf, sizeof(buf));
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
#define DEBUGFS_DEVSTATS_FILE(name) \
static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
char *buf, int buflen) \
{ \
return scnprintf(buf, buflen, "%u\n", stats->name); \
} \
static ssize_t stats_ ##name## _read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
return format_devstat_counter(file->private_data, \
userbuf, \
count, \
ppos, \
print_devstats_##name); \
} \
\
static const struct file_operations stats_ ##name## _ops = { \
.read = stats_ ##name## _read, \
.open = mac80211_open_file_generic, \
};
#define DEBUGFS_STATS_ADD(name) \
local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\
local, &stats_ ##name## _ops);
#define DEBUGFS_STATS_DEL(name) \
debugfs_remove(local->debugfs.stats.name); \
local->debugfs.stats.name = NULL;
DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
local->dot11TransmittedFragmentCount);
DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
local->dot11MulticastTransmittedFrameCount);
DEBUGFS_STATS_FILE(failed_count, 20, "%u",
local->dot11FailedCount);
DEBUGFS_STATS_FILE(retry_count, 20, "%u",
local->dot11RetryCount);
DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
local->dot11MultipleRetryCount);
DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
local->dot11FrameDuplicateCount);
DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
local->dot11ReceivedFragmentCount);
DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
local->dot11MulticastReceivedFrameCount);
DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
local->dot11TransmittedFrameCount);
DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u",
local->dot11WEPUndecryptableCount);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
local->tx_handlers_drop);
DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
local->tx_handlers_queued);
DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
local->tx_handlers_drop_unencrypted);
DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
local->tx_handlers_drop_fragment);
DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
local->tx_handlers_drop_wep);
DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
local->tx_handlers_drop_not_assoc);
DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
local->tx_handlers_drop_unauth_port);
DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
local->rx_handlers_drop);
DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
local->rx_handlers_queued);
DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
local->rx_handlers_drop_nullfunc);
DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
local->rx_handlers_drop_defrag);
DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
local->rx_handlers_drop_short);
DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
local->rx_handlers_drop_passive_scan);
DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
local->tx_expand_skb_head);
DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
local->tx_expand_skb_head_cloned);
DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
local->rx_expand_skb_head);
DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
local->rx_expand_skb_head2);
DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
local->rx_handlers_fragments);
DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
local->tx_status_drop);
static ssize_t stats_wme_rx_queue_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
char buf[NUM_RX_DATA_QUEUES*15], *p = buf;
int i;
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += scnprintf(p, sizeof(buf)+buf-p,
"%u\n", local->wme_rx_queue[i]);
return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
}
static const struct file_operations stats_wme_rx_queue_ops = {
.read = stats_wme_rx_queue_read,
.open = mac80211_open_file_generic,
};
static ssize_t stats_wme_tx_queue_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
char buf[NUM_TX_DATA_QUEUES*15], *p = buf;
int i;
for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
p += scnprintf(p, sizeof(buf)+buf-p,
"%u\n", local->wme_tx_queue[i]);
return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
}
static const struct file_operations stats_wme_tx_queue_ops = {
.read = stats_wme_tx_queue_read,
.open = mac80211_open_file_generic,
};
#endif
DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
void debugfs_hw_add(struct ieee80211_local *local)
{
struct dentry *phyd = local->hw.wiphy->debugfsdir;
struct dentry *statsd;
if (!phyd)
return;
local->debugfs.stations = debugfs_create_dir("stations", phyd);
local->debugfs.keys = debugfs_create_dir("keys", phyd);
DEBUGFS_ADD(channel);
DEBUGFS_ADD(frequency);
DEBUGFS_ADD(radar_detect);
DEBUGFS_ADD(antenna_sel_tx);
DEBUGFS_ADD(antenna_sel_rx);
DEBUGFS_ADD(bridge_packets);
DEBUGFS_ADD(key_tx_rx_threshold);
DEBUGFS_ADD(rts_threshold);
DEBUGFS_ADD(fragmentation_threshold);
DEBUGFS_ADD(short_retry_limit);
DEBUGFS_ADD(long_retry_limit);
DEBUGFS_ADD(total_ps_buffered);
DEBUGFS_ADD(mode);
DEBUGFS_ADD(wep_iv);
DEBUGFS_ADD(tx_power_reduction);
DEBUGFS_ADD_MODE(rate_ctrl_alg, 0644);
DEBUGFS_ADD(modes);
statsd = debugfs_create_dir("statistics", phyd);
local->debugfs.statistics = statsd;
/* if the dir failed, don't put all the other things into the root! */
if (!statsd)
return;
DEBUGFS_STATS_ADD(transmitted_fragment_count);
DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
DEBUGFS_STATS_ADD(failed_count);
DEBUGFS_STATS_ADD(retry_count);
DEBUGFS_STATS_ADD(multiple_retry_count);
DEBUGFS_STATS_ADD(frame_duplicate_count);
DEBUGFS_STATS_ADD(received_fragment_count);
DEBUGFS_STATS_ADD(multicast_received_frame_count);
DEBUGFS_STATS_ADD(transmitted_frame_count);
DEBUGFS_STATS_ADD(wep_undecryptable_count);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
DEBUGFS_STATS_ADD(tx_handlers_drop);
DEBUGFS_STATS_ADD(tx_handlers_queued);
DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
DEBUGFS_STATS_ADD(rx_handlers_drop);
DEBUGFS_STATS_ADD(rx_handlers_queued);
DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
DEBUGFS_STATS_ADD(rx_handlers_drop_short);
DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
DEBUGFS_STATS_ADD(tx_expand_skb_head);
DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
DEBUGFS_STATS_ADD(rx_expand_skb_head);
DEBUGFS_STATS_ADD(rx_expand_skb_head2);
DEBUGFS_STATS_ADD(rx_handlers_fragments);
DEBUGFS_STATS_ADD(tx_status_drop);
DEBUGFS_STATS_ADD(wme_tx_queue);
DEBUGFS_STATS_ADD(wme_rx_queue);
#endif
DEBUGFS_STATS_ADD(dot11ACKFailureCount);
DEBUGFS_STATS_ADD(dot11RTSFailureCount);
DEBUGFS_STATS_ADD(dot11FCSErrorCount);
DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
}
void debugfs_hw_del(struct ieee80211_local *local)
{
DEBUGFS_DEL(channel);
DEBUGFS_DEL(frequency);
DEBUGFS_DEL(radar_detect);
DEBUGFS_DEL(antenna_sel_tx);
DEBUGFS_DEL(antenna_sel_rx);
DEBUGFS_DEL(bridge_packets);
DEBUGFS_DEL(key_tx_rx_threshold);
DEBUGFS_DEL(rts_threshold);
DEBUGFS_DEL(fragmentation_threshold);
DEBUGFS_DEL(short_retry_limit);
DEBUGFS_DEL(long_retry_limit);
DEBUGFS_DEL(total_ps_buffered);
DEBUGFS_DEL(mode);
DEBUGFS_DEL(wep_iv);
DEBUGFS_DEL(tx_power_reduction);
DEBUGFS_DEL(rate_ctrl_alg);
DEBUGFS_DEL(modes);
DEBUGFS_STATS_DEL(transmitted_fragment_count);
DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
DEBUGFS_STATS_DEL(failed_count);
DEBUGFS_STATS_DEL(retry_count);
DEBUGFS_STATS_DEL(multiple_retry_count);
DEBUGFS_STATS_DEL(frame_duplicate_count);
DEBUGFS_STATS_DEL(received_fragment_count);
DEBUGFS_STATS_DEL(multicast_received_frame_count);
DEBUGFS_STATS_DEL(transmitted_frame_count);
DEBUGFS_STATS_DEL(wep_undecryptable_count);
DEBUGFS_STATS_DEL(num_scans);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
DEBUGFS_STATS_DEL(tx_handlers_drop);
DEBUGFS_STATS_DEL(tx_handlers_queued);
DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
DEBUGFS_STATS_DEL(rx_handlers_drop);
DEBUGFS_STATS_DEL(rx_handlers_queued);
DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
DEBUGFS_STATS_DEL(rx_handlers_drop_short);
DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
DEBUGFS_STATS_DEL(tx_expand_skb_head);
DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
DEBUGFS_STATS_DEL(rx_expand_skb_head);
DEBUGFS_STATS_DEL(rx_expand_skb_head2);
DEBUGFS_STATS_DEL(rx_handlers_fragments);
DEBUGFS_STATS_DEL(tx_status_drop);
DEBUGFS_STATS_DEL(wme_tx_queue);
DEBUGFS_STATS_DEL(wme_rx_queue);
#endif
DEBUGFS_STATS_DEL(dot11ACKFailureCount);
DEBUGFS_STATS_DEL(dot11RTSFailureCount);
DEBUGFS_STATS_DEL(dot11FCSErrorCount);
DEBUGFS_STATS_DEL(dot11RTSSuccessCount);
debugfs_remove(local->debugfs.statistics);
local->debugfs.statistics = NULL;
debugfs_remove(local->debugfs.stations);
local->debugfs.stations = NULL;
debugfs_remove(local->debugfs.keys);
local->debugfs.keys = NULL;
}

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#ifndef __MAC80211_DEBUGFS_H
#define __MAC80211_DEBUGFS_H
#ifdef CONFIG_MAC80211_DEBUGFS
extern void debugfs_hw_add(struct ieee80211_local *local);
extern void debugfs_hw_del(struct ieee80211_local *local);
extern int mac80211_open_file_generic(struct inode *inode, struct file *file);
#else
static inline void debugfs_hw_add(struct ieee80211_local *local)
{
return;
}
static inline void debugfs_hw_del(struct ieee80211_local *local) {}
#endif
#endif /* __MAC80211_DEBUGFS_H */

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/*
* Copyright 2003-2005 Devicescape Software, Inc.
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kobject.h>
#include "ieee80211_i.h"
#include "ieee80211_key.h"
#include "debugfs.h"
#include "debugfs_key.h"
#define KEY_READ(name, buflen, format_string) \
static ssize_t key_##name##_read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
char buf[buflen]; \
struct ieee80211_key *key = file->private_data; \
int res = scnprintf(buf, buflen, format_string, key->name); \
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
}
#define KEY_READ_D(name) KEY_READ(name, 20, "%d\n")
#define KEY_OPS(name) \
static const struct file_operations key_ ##name## _ops = { \
.read = key_##name##_read, \
.open = mac80211_open_file_generic, \
}
#define KEY_FILE(name, format) \
KEY_READ_##format(name) \
KEY_OPS(name)
KEY_FILE(keylen, D);
KEY_FILE(force_sw_encrypt, D);
KEY_FILE(keyidx, D);
KEY_FILE(hw_key_idx, D);
KEY_FILE(tx_rx_count, D);
static ssize_t key_algorithm_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
{
char *alg;
struct ieee80211_key *key = file->private_data;
switch (key->alg) {
case ALG_WEP:
alg = "WEP\n";
break;
case ALG_TKIP:
alg = "TKIP\n";
break;
case ALG_CCMP:
alg = "CCMP\n";
break;
default:
return 0;
}
return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
}
KEY_OPS(algorithm);
static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
const u8 *tpn;
char buf[20];
int len;
struct ieee80211_key *key = file->private_data;
switch (key->alg) {
case ALG_WEP:
len = scnprintf(buf, sizeof(buf), "\n");
case ALG_TKIP:
len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
key->u.tkip.iv32,
key->u.tkip.iv16);
case ALG_CCMP:
tpn = key->u.ccmp.tx_pn;
len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
default:
return 0;
}
return simple_read_from_buffer(userbuf, count, ppos, buf, len);
}
KEY_OPS(tx_spec);
static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_key *key = file->private_data;
char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
int i, len;
const u8 *rpn;
switch (key->alg) {
case ALG_WEP:
len = scnprintf(buf, sizeof(buf), "\n");
case ALG_TKIP:
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += scnprintf(p, sizeof(buf)+buf-p,
"%08x %04x\n",
key->u.tkip.iv32_rx[i],
key->u.tkip.iv16_rx[i]);
len = p - buf;
case ALG_CCMP:
for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
rpn = key->u.ccmp.rx_pn[i];
p += scnprintf(p, sizeof(buf)+buf-p,
"%02x%02x%02x%02x%02x%02x\n",
rpn[0], rpn[1], rpn[2],
rpn[3], rpn[4], rpn[5]);
}
len = p - buf;
default:
return 0;
}
return simple_read_from_buffer(userbuf, count, ppos, buf, len);
}
KEY_OPS(rx_spec);
static ssize_t key_replays_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_key *key = file->private_data;
char buf[20];
int len;
if (key->alg != ALG_CCMP)
return 0;
len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
return simple_read_from_buffer(userbuf, count, ppos, buf, len);
}
KEY_OPS(replays);
static ssize_t key_key_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_key *key = file->private_data;
int i, res, bufsize = 2*key->keylen+2;
char *buf = kmalloc(bufsize, GFP_KERNEL);
char *p = buf;
for (i = 0; i < key->keylen; i++)
p += scnprintf(p, bufsize+buf-p, "%02x", key->key[i]);
p += scnprintf(p, bufsize+buf-p, "\n");
res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
kfree(buf);
return res;
}
KEY_OPS(key);
#define DEBUGFS_ADD(name) \
key->debugfs.name = debugfs_create_file(#name, 0400,\
key->debugfs.dir, key, &key_##name##_ops);
void ieee80211_debugfs_key_add(struct ieee80211_local *local,
struct ieee80211_key *key)
{
char buf[20];
if (!local->debugfs.keys)
return;
sprintf(buf, "%d", key->keyidx);
key->debugfs.dir = debugfs_create_dir(buf,
local->debugfs.keys);
if (!key->debugfs.dir)
return;
DEBUGFS_ADD(keylen);
DEBUGFS_ADD(force_sw_encrypt);
DEBUGFS_ADD(keyidx);
DEBUGFS_ADD(hw_key_idx);
DEBUGFS_ADD(tx_rx_count);
DEBUGFS_ADD(algorithm);
DEBUGFS_ADD(tx_spec);
DEBUGFS_ADD(rx_spec);
DEBUGFS_ADD(replays);
DEBUGFS_ADD(key);
};
#define DEBUGFS_DEL(name) \
debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;
void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
{
if (!key)
return;
DEBUGFS_DEL(keylen);
DEBUGFS_DEL(force_sw_encrypt);
DEBUGFS_DEL(keyidx);
DEBUGFS_DEL(hw_key_idx);
DEBUGFS_DEL(tx_rx_count);
DEBUGFS_DEL(algorithm);
DEBUGFS_DEL(tx_spec);
DEBUGFS_DEL(rx_spec);
DEBUGFS_DEL(replays);
DEBUGFS_DEL(key);
debugfs_remove(key->debugfs.stalink);
key->debugfs.stalink = NULL;
debugfs_remove(key->debugfs.dir);
key->debugfs.dir = NULL;
}
void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
{
char buf[50];
if (!sdata->debugfsdir)
return;
sprintf(buf, "../keys/%d", sdata->default_key->keyidx);
sdata->debugfs.default_key =
debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
}
void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
{
if (!sdata)
return;
debugfs_remove(sdata->debugfs.default_key);
sdata->debugfs.default_key = NULL;
}
void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
struct sta_info *sta)
{
char buf[50];
if (!key->debugfs.dir)
return;
sprintf(buf, "../sta/" MAC_FMT, MAC_ARG(sta->addr));
key->debugfs.stalink =
debugfs_create_symlink("station", key->debugfs.dir, buf);
}
void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
struct sta_info *sta)
{
debugfs_remove(key->debugfs.stalink);
key->debugfs.stalink = NULL;
}

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#ifndef __MAC80211_DEBUGFS_KEY_H
#define __MAC80211_DEBUGFS_KEY_H
#ifdef CONFIG_MAC80211_DEBUGFS
void ieee80211_debugfs_key_add(struct ieee80211_local *local,
struct ieee80211_key *key);
void ieee80211_debugfs_key_remove(struct ieee80211_key *key);
void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata);
void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata);
void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
struct sta_info *sta);
void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
struct sta_info *sta);
#else
static inline void ieee80211_debugfs_key_add(struct ieee80211_local *local,
struct ieee80211_key *key)
{}
static inline void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
{}
static inline void ieee80211_debugfs_key_add_default(
struct ieee80211_sub_if_data *sdata)
{}
static inline void ieee80211_debugfs_key_remove_default(
struct ieee80211_sub_if_data *sdata)
{}
static inline void ieee80211_debugfs_key_sta_link(
struct ieee80211_key *key, struct sta_info *sta)
{}
static inline void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
struct sta_info *sta)
{}
#endif
#endif /* __MAC80211_DEBUGFS_KEY_H */

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/*
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/if.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <linux/notifier.h>
#include <net/mac80211.h>
#include <net/cfg80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "debugfs.h"
#include "debugfs_netdev.h"
static ssize_t ieee80211_if_read(
struct ieee80211_sub_if_data *sdata,
char __user *userbuf,
size_t count, loff_t *ppos,
ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
{
char buf[70];
ssize_t ret = -EINVAL;
read_lock(&dev_base_lock);
if (sdata->dev->reg_state == NETREG_REGISTERED) {
ret = (*format)(sdata, buf, sizeof(buf));
ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
}
read_unlock(&dev_base_lock);
return ret;
}
#define IEEE80211_IF_FMT(name, field, format_string) \
static ssize_t ieee80211_if_fmt_##name( \
const struct ieee80211_sub_if_data *sdata, char *buf, \
int buflen) \
{ \
return scnprintf(buf, buflen, format_string, sdata->field); \
}
#define IEEE80211_IF_FMT_DEC(name, field) \
IEEE80211_IF_FMT(name, field, "%d\n")
#define IEEE80211_IF_FMT_HEX(name, field) \
IEEE80211_IF_FMT(name, field, "%#x\n")
#define IEEE80211_IF_FMT_SIZE(name, field) \
IEEE80211_IF_FMT(name, field, "%zd\n")
#define IEEE80211_IF_FMT_ATOMIC(name, field) \
static ssize_t ieee80211_if_fmt_##name( \
const struct ieee80211_sub_if_data *sdata, \
char *buf, int buflen) \
{ \
return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
}
#define IEEE80211_IF_FMT_MAC(name, field) \
static ssize_t ieee80211_if_fmt_##name( \
const struct ieee80211_sub_if_data *sdata, char *buf, \
int buflen) \
{ \
return scnprintf(buf, buflen, MAC_FMT "\n", MAC_ARG(sdata->field));\
}
#define __IEEE80211_IF_FILE(name) \
static ssize_t ieee80211_if_read_##name(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
return ieee80211_if_read(file->private_data, \
userbuf, count, ppos, \
ieee80211_if_fmt_##name); \
} \
static const struct file_operations name##_ops = { \
.read = ieee80211_if_read_##name, \
.open = mac80211_open_file_generic, \
}
#define IEEE80211_IF_FILE(name, field, format) \
IEEE80211_IF_FMT_##format(name, field) \
__IEEE80211_IF_FILE(name)
static struct ieee80211_elem_tspec _tspec = {
.nominal_msdu_size = 200,
.inactivity_interval = 40,
.mean_data_rate = 40000,
.min_phy_rate = 6000000,
.surplus_band_allow = 8192,
.medium_time = 30,
};
static u8 _dls_mac[ETH_ALEN];
#define DEBUGFS_QOS_FILE(name, f) \
static ssize_t qos_ ##name## _write(struct file *file, \
const char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
struct ieee80211_sub_if_data *sdata = file->private_data; \
\
f(sdata->dev, &sdata->u.sta, &_tspec); \
\
return count; \
} \
\
static const struct file_operations qos_ ##name## _ops = { \
.write = qos_ ##name## _write, \
.open = mac80211_open_file_generic, \
};
#define DEBUGFS_QOS_ADD(name) \
sdata->debugfs.sta.qos.name = debugfs_create_file(#name, 0444, qosd,\
sdata, &qos_ ##name## _ops);
#define DEBUGFS_QOS_DEL(name) \
do { \
debugfs_remove(sdata->debugfs.sta.qos.name); \
sdata->debugfs.sta.qos.name = NULL; \
} while (0)
DEBUGFS_QOS_FILE(addts_11e, ieee80211_send_addts);
DEBUGFS_QOS_FILE(addts_wmm, wmm_send_addts);
DEBUGFS_QOS_FILE(delts_11e, ieee80211_send_delts);
DEBUGFS_QOS_FILE(delts_wmm, wmm_send_delts);
static ssize_t qos_if_dls_mac(const struct ieee80211_sub_if_data *sdata,
char *buf, int buflen)
{
return scnprintf(buf, buflen, MAC_FMT "\n", MAC_ARG(_dls_mac));
}
static ssize_t qos_dls_mac_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
{
return ieee80211_if_read(file->private_data,
userbuf, count, ppos,
qos_if_dls_mac);
}
static ssize_t qos_dls_mac_write(struct file *file, const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_sub_if_data *sdata = file->private_data;
char buf[20];
size_t size;
u8 m[ETH_ALEN];
size = min(sizeof(buf) - 1, count);
buf[size] = '\0';
if (copy_from_user(buf, userbuf, size))
return -EFAULT;
if (sscanf(buf, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
&((u8*)(m))[0], &((u8*)(m))[1], &((u8*)(m))[2],
&((u8*)(m))[3], &((u8*)(m))[4], &((u8*)(m))[5]) != ETH_ALEN){
printk(KERN_ERR "%s: sscanf input error\n", sdata->dev->name);
return -EINVAL;
}
memcpy(_dls_mac, m, ETH_ALEN);
return count;
}
static const struct file_operations qos_dls_mac_ops = {
.read = qos_dls_mac_read,
.write = qos_dls_mac_write,
.open = mac80211_open_file_generic,
};
static ssize_t qos_if_dls_op(const struct ieee80211_sub_if_data *sdata,
char *buf, int buflen)
{
return scnprintf(buf, buflen,
"DLS Operation: Setup = 1; Teardown = 2\n");
}
static ssize_t qos_dls_op_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
return ieee80211_if_read(file->private_data,
userbuf, count, ppos,
qos_if_dls_op);
}
static ssize_t qos_dls_op_write(struct file *file, const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_sub_if_data *sdata = file->private_data;
char buf[20];
size_t size;
unsigned int opt;
size = min(sizeof(buf) - 1, count);
buf[size] = '\0';
if (copy_from_user(buf, userbuf, size))
return -EFAULT;
if (sscanf(buf, "%u", &opt) != 1) {
printk(KERN_ERR "%s: sscanf input error\n", sdata->dev->name);
return -EINVAL;
}
switch (opt) {
case 1:
ieee80211_send_dls_req(sdata->dev, &sdata->u.sta, _dls_mac, 0);
break;
case 2:
ieee80211_send_dls_teardown(sdata->dev, &sdata->u.sta, _dls_mac,
WLAN_REASON_QSTA_NOT_USE);
break;
default:
printk(KERN_ERR "Unknown DLS Operation: %d\n", opt);
break;
}
return count;
}
static const struct file_operations qos_dls_op_ops = {
.read = qos_dls_op_read,
.write = qos_dls_op_write,
.open = mac80211_open_file_generic,
};
#define DEBUGFS_TSINFO_FILE(_name, min_val, max_val) \
static ssize_t tsinfo_ ##_name## _read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
char buf[20]; \
int res = scnprintf(buf, count, "%u\n", \
IEEE80211_TSINFO_## _name (_tspec.ts_info)); \
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
} \
\
static ssize_t tsinfo_ ##_name## _write(struct file *file, \
const char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
char buf[20]; \
size_t size; \
int val; \
\
size = min(sizeof(buf) - 1, count); \
buf[size] = '\0'; \
if (copy_from_user(buf, userbuf, size)) \
return -EFAULT; \
\
val = simple_strtoul(buf, NULL, 0); \
if ((val < min_val) || (val > max_val)) { \
struct ieee80211_sub_if_data *sdata = file->private_data;\
printk(KERN_ERR "%s: set value (%u) out of range " \
"[%u, %u]\n",sdata->dev->name,val,min_val,max_val);\
return -EINVAL; \
} \
SET_TSINFO_ ##_name (_tspec.ts_info, val); \
return count; \
} \
\
static const struct file_operations tsinfo_ ##_name## _ops = { \
.read = tsinfo_ ##_name## _read, \
.write = tsinfo_ ##_name## _write, \
.open = mac80211_open_file_generic, \
};
#define DEBUGFS_TSINFO_ADD_TSID \
sdata->debugfs.sta.tsinfo.tsid = \
debugfs_create_file("tsid", 0444, tsinfod, \
sdata, &tsinfo_TSID_ops);
#define DEBUGFS_TSINFO_ADD_DIR \
sdata->debugfs.sta.tsinfo.direction = \
debugfs_create_file("direction", 0444, tsinfod, \
sdata, &tsinfo_DIR_ops);
#define DEBUGFS_TSINFO_ADD_UP \
sdata->debugfs.sta.tsinfo.up = \
debugfs_create_file("up", 0444, tsinfod, \
sdata, &tsinfo_UP_ops);
#define DEBUGFS_TSINFO_DEL(name) \
do { \
debugfs_remove(sdata->debugfs.sta.tsinfo.name); \
sdata->debugfs.sta.tsinfo.name = NULL; \
} while (0)
DEBUGFS_TSINFO_FILE(TSID, 8, 15);
DEBUGFS_TSINFO_FILE(DIR, 0, 3);
DEBUGFS_TSINFO_FILE(UP, 0, 7);
#define DEBUGFS_TSPEC_FILE(name) \
static ssize_t tspec_ ##name## _read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
char buf[20]; \
int res = scnprintf(buf, count, "%u\n", _tspec.name); \
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
} \
\
static ssize_t tspec_ ##name## _write(struct file *file, \
const char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
char buf[20]; \
size_t size; \
\
size = min(sizeof(buf) - 1, count); \
buf[size] = '\0'; \
if (copy_from_user(buf, userbuf, size)) \
return -EFAULT; \
\
_tspec.name = simple_strtoul(buf, NULL, 0); \
return count; \
} \
\
static const struct file_operations tspec_ ##name## _ops = { \
.read = tspec_ ##name## _read, \
.write = tspec_ ##name## _write, \
.open = mac80211_open_file_generic, \
};
#define DEBUGFS_TSPEC_ADD(name) \
sdata->debugfs.sta.tspec.name = debugfs_create_file(#name, \
0444, tspecd, sdata, &tspec_ ##name## _ops);
#define DEBUGFS_TSPEC_DEL(name) \
do { \
debugfs_remove(sdata->debugfs.sta.tspec.name); \
sdata->debugfs.sta.tspec.name = NULL; \
} while (0)
DEBUGFS_TSPEC_FILE(nominal_msdu_size);
DEBUGFS_TSPEC_FILE(max_msdu_size);
DEBUGFS_TSPEC_FILE(min_service_interval);
DEBUGFS_TSPEC_FILE(max_service_interval);
DEBUGFS_TSPEC_FILE(inactivity_interval);
DEBUGFS_TSPEC_FILE(suspension_interval);
DEBUGFS_TSPEC_FILE(service_start_time);
DEBUGFS_TSPEC_FILE(min_data_rate);
DEBUGFS_TSPEC_FILE(mean_data_rate);
DEBUGFS_TSPEC_FILE(peak_data_rate);
DEBUGFS_TSPEC_FILE(burst_size);
DEBUGFS_TSPEC_FILE(delay_bound);
DEBUGFS_TSPEC_FILE(min_phy_rate);
DEBUGFS_TSPEC_FILE(surplus_band_allow);
DEBUGFS_TSPEC_FILE(medium_time);
/* common attributes */
IEEE80211_IF_FILE(channel_use, channel_use, DEC);
IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
IEEE80211_IF_FILE(eapol, eapol, DEC);
IEEE80211_IF_FILE(ieee8021_x, ieee802_1x, DEC);
/* STA/IBSS attributes */
IEEE80211_IF_FILE(state, u.sta.state, DEC);
IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);
IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);
IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);
IEEE80211_IF_FILE(aid, u.sta.aid, DEC);
IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);
IEEE80211_IF_FILE(capab, u.sta.capab, HEX);
IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);
IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);
IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
static ssize_t ieee80211_if_fmt_flags(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",
sdata->u.sta.ssid_set ? "SSID\n" : "",
sdata->u.sta.bssid_set ? "BSSID\n" : "",
sdata->u.sta.prev_bssid_set ? "prev BSSID\n" : "",
sdata->u.sta.authenticated ? "AUTH\n" : "",
sdata->u.sta.associated ? "ASSOC\n" : "",
sdata->u.sta.probereq_poll ? "PROBEREQ POLL\n" : "",
sdata->u.sta.use_protection ? "CTS prot\n" : "");
}
__IEEE80211_IF_FILE(flags);
/* AP attributes */
IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
IEEE80211_IF_FILE(dtim_period, u.ap.dtim_period, DEC);
IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, DEC);
static ssize_t ieee80211_if_fmt_num_buffered_multicast(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
return scnprintf(buf, buflen, "%u\n",
skb_queue_len(&sdata->u.ap.ps_bc_buf));
}
__IEEE80211_IF_FILE(num_buffered_multicast);
static ssize_t ieee80211_if_fmt_beacon_head_len(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
if (sdata->u.ap.beacon_head)
return scnprintf(buf, buflen, "%d\n",
sdata->u.ap.beacon_head_len);
return scnprintf(buf, buflen, "\n");
}
__IEEE80211_IF_FILE(beacon_head_len);
static ssize_t ieee80211_if_fmt_beacon_tail_len(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
if (sdata->u.ap.beacon_tail)
return scnprintf(buf, buflen, "%d\n",
sdata->u.ap.beacon_tail_len);
return scnprintf(buf, buflen, "\n");
}
__IEEE80211_IF_FILE(beacon_tail_len);
/* WDS attributes */
IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
/* VLAN attributes */
IEEE80211_IF_FILE(vlan_id, u.vlan.id, DEC);
/* MONITOR attributes */
static ssize_t ieee80211_if_fmt_mode(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
struct ieee80211_local *local = sdata->local;
return scnprintf(buf, buflen, "%s\n",
((local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) ||
local->open_count == local->monitors) ?
"hard" : "soft");
}
__IEEE80211_IF_FILE(mode);
#define DEBUGFS_ADD(name, type)\
sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\
sdata->debugfsdir, sdata, &name##_ops);
static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
struct dentry *qosd;
struct dentry *tsinfod;
struct dentry *tspecd;
DEBUGFS_ADD(channel_use, sta);
DEBUGFS_ADD(drop_unencrypted, sta);
DEBUGFS_ADD(eapol, sta);
DEBUGFS_ADD(ieee8021_x, sta);
DEBUGFS_ADD(state, sta);
DEBUGFS_ADD(bssid, sta);
DEBUGFS_ADD(prev_bssid, sta);
DEBUGFS_ADD(ssid_len, sta);
DEBUGFS_ADD(aid, sta);
DEBUGFS_ADD(ap_capab, sta);
DEBUGFS_ADD(capab, sta);
DEBUGFS_ADD(extra_ie_len, sta);
DEBUGFS_ADD(auth_tries, sta);
DEBUGFS_ADD(assoc_tries, sta);
DEBUGFS_ADD(auth_algs, sta);
DEBUGFS_ADD(auth_alg, sta);
DEBUGFS_ADD(auth_transaction, sta);
DEBUGFS_ADD(flags, sta);
qosd = debugfs_create_dir("qos", sdata->debugfsdir);
sdata->debugfs.sta.qos_dir = qosd;
DEBUGFS_QOS_ADD(addts_11e);
DEBUGFS_QOS_ADD(addts_wmm);
DEBUGFS_QOS_ADD(delts_11e);
DEBUGFS_QOS_ADD(delts_wmm);
DEBUGFS_QOS_ADD(dls_mac);
DEBUGFS_QOS_ADD(dls_op);
tsinfod = debugfs_create_dir("ts_info", qosd);
sdata->debugfs.sta.tsinfo_dir = tsinfod;
DEBUGFS_TSINFO_ADD_TSID;
DEBUGFS_TSINFO_ADD_DIR;
DEBUGFS_TSINFO_ADD_UP;
tspecd = debugfs_create_dir("tspec", qosd);
sdata->debugfs.sta.tspec_dir = tspecd;
DEBUGFS_TSPEC_ADD(nominal_msdu_size);
DEBUGFS_TSPEC_ADD(max_msdu_size);
DEBUGFS_TSPEC_ADD(min_service_interval);
DEBUGFS_TSPEC_ADD(max_service_interval);
DEBUGFS_TSPEC_ADD(inactivity_interval);
DEBUGFS_TSPEC_ADD(suspension_interval);
DEBUGFS_TSPEC_ADD(service_start_time);
DEBUGFS_TSPEC_ADD(min_data_rate);
DEBUGFS_TSPEC_ADD(mean_data_rate);
DEBUGFS_TSPEC_ADD(peak_data_rate);
DEBUGFS_TSPEC_ADD(burst_size);
DEBUGFS_TSPEC_ADD(delay_bound);
DEBUGFS_TSPEC_ADD(min_phy_rate);
DEBUGFS_TSPEC_ADD(surplus_band_allow);
DEBUGFS_TSPEC_ADD(medium_time);
}
static void add_ap_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(channel_use, ap);
DEBUGFS_ADD(drop_unencrypted, ap);
DEBUGFS_ADD(eapol, ap);
DEBUGFS_ADD(ieee8021_x, ap);
DEBUGFS_ADD(num_sta_ps, ap);
DEBUGFS_ADD(dtim_period, ap);
DEBUGFS_ADD(dtim_count, ap);
DEBUGFS_ADD(num_beacons, ap);
DEBUGFS_ADD(force_unicast_rateidx, ap);
DEBUGFS_ADD(max_ratectrl_rateidx, ap);
DEBUGFS_ADD(num_buffered_multicast, ap);
DEBUGFS_ADD(beacon_head_len, ap);
DEBUGFS_ADD(beacon_tail_len, ap);
}
static void add_wds_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(channel_use, wds);
DEBUGFS_ADD(drop_unencrypted, wds);
DEBUGFS_ADD(eapol, wds);
DEBUGFS_ADD(ieee8021_x, wds);
DEBUGFS_ADD(peer, wds);
}
static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(channel_use, vlan);
DEBUGFS_ADD(drop_unencrypted, vlan);
DEBUGFS_ADD(eapol, vlan);
DEBUGFS_ADD(ieee8021_x, vlan);
DEBUGFS_ADD(vlan_id, vlan);
}
static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(mode, monitor);
}
static void add_files(struct ieee80211_sub_if_data *sdata)
{
if (!sdata->debugfsdir)
return;
switch (sdata->type) {
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
add_sta_files(sdata);
break;
case IEEE80211_IF_TYPE_AP:
add_ap_files(sdata);
break;
case IEEE80211_IF_TYPE_WDS:
add_wds_files(sdata);
break;
case IEEE80211_IF_TYPE_MNTR:
add_monitor_files(sdata);
break;
case IEEE80211_IF_TYPE_VLAN:
add_vlan_files(sdata);
break;
default:
break;
}
}
#define DEBUGFS_DEL(name, type) \
do { \
debugfs_remove(sdata->debugfs.type.name); \
sdata->debugfs.type.name = NULL; \
} while (0)
static void del_sta_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_DEL(channel_use, sta);
DEBUGFS_DEL(drop_unencrypted, sta);
DEBUGFS_DEL(eapol, sta);
DEBUGFS_DEL(ieee8021_x, sta);
DEBUGFS_DEL(state, sta);
DEBUGFS_DEL(bssid, sta);
DEBUGFS_DEL(prev_bssid, sta);
DEBUGFS_DEL(ssid_len, sta);
DEBUGFS_DEL(aid, sta);
DEBUGFS_DEL(ap_capab, sta);
DEBUGFS_DEL(capab, sta);
DEBUGFS_DEL(extra_ie_len, sta);
DEBUGFS_DEL(auth_tries, sta);
DEBUGFS_DEL(assoc_tries, sta);
DEBUGFS_DEL(auth_algs, sta);
DEBUGFS_DEL(auth_alg, sta);
DEBUGFS_DEL(auth_transaction, sta);
DEBUGFS_DEL(flags, sta);
DEBUGFS_TSINFO_DEL(tsid);
DEBUGFS_TSINFO_DEL(direction);
DEBUGFS_TSINFO_DEL(up);
DEBUGFS_TSPEC_DEL(nominal_msdu_size);
DEBUGFS_TSPEC_DEL(max_msdu_size);
DEBUGFS_TSPEC_DEL(min_service_interval);
DEBUGFS_TSPEC_DEL(max_service_interval);
DEBUGFS_TSPEC_DEL(inactivity_interval);
DEBUGFS_TSPEC_DEL(suspension_interval);
DEBUGFS_TSPEC_DEL(service_start_time);
DEBUGFS_TSPEC_DEL(min_data_rate);
DEBUGFS_TSPEC_DEL(mean_data_rate);
DEBUGFS_TSPEC_DEL(peak_data_rate);
DEBUGFS_TSPEC_DEL(burst_size);
DEBUGFS_TSPEC_DEL(delay_bound);
DEBUGFS_TSPEC_DEL(min_phy_rate);
DEBUGFS_TSPEC_DEL(surplus_band_allow);
DEBUGFS_TSPEC_DEL(medium_time);
DEBUGFS_QOS_DEL(addts_11e);
DEBUGFS_QOS_DEL(addts_wmm);
DEBUGFS_QOS_DEL(delts_11e);
DEBUGFS_QOS_DEL(delts_wmm);
DEBUGFS_QOS_DEL(dls_mac);
DEBUGFS_QOS_DEL(dls_op);
debugfs_remove(sdata->debugfs.sta.tspec_dir);
sdata->debugfs.sta.tspec_dir = NULL;
debugfs_remove(sdata->debugfs.sta.tsinfo_dir);
sdata->debugfs.sta.tsinfo_dir = NULL;
debugfs_remove(sdata->debugfs.sta.qos_dir);
sdata->debugfs.sta.qos_dir = NULL;
}
static void del_ap_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_DEL(channel_use, ap);
DEBUGFS_DEL(drop_unencrypted, ap);
DEBUGFS_DEL(eapol, ap);
DEBUGFS_DEL(ieee8021_x, ap);
DEBUGFS_DEL(num_sta_ps, ap);
DEBUGFS_DEL(dtim_period, ap);
DEBUGFS_DEL(dtim_count, ap);
DEBUGFS_DEL(num_beacons, ap);
DEBUGFS_DEL(force_unicast_rateidx, ap);
DEBUGFS_DEL(max_ratectrl_rateidx, ap);
DEBUGFS_DEL(num_buffered_multicast, ap);
DEBUGFS_DEL(beacon_head_len, ap);
DEBUGFS_DEL(beacon_tail_len, ap);
}
static void del_wds_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_DEL(channel_use, wds);
DEBUGFS_DEL(drop_unencrypted, wds);
DEBUGFS_DEL(eapol, wds);
DEBUGFS_DEL(ieee8021_x, wds);
DEBUGFS_DEL(peer, wds);
}
static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_DEL(channel_use, vlan);
DEBUGFS_DEL(drop_unencrypted, vlan);
DEBUGFS_DEL(eapol, vlan);
DEBUGFS_DEL(ieee8021_x, vlan);
DEBUGFS_DEL(vlan_id, vlan);
}
static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_DEL(mode, monitor);
}
static void del_files(struct ieee80211_sub_if_data *sdata, int type)
{
if (!sdata->debugfsdir)
return;
switch (type) {
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
del_sta_files(sdata);
break;
case IEEE80211_IF_TYPE_AP:
del_ap_files(sdata);
break;
case IEEE80211_IF_TYPE_WDS:
del_wds_files(sdata);
break;
case IEEE80211_IF_TYPE_MNTR:
del_monitor_files(sdata);
break;
case IEEE80211_IF_TYPE_VLAN:
del_vlan_files(sdata);
break;
default:
break;
}
}
static int notif_registered;
void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
{
char buf[10+IFNAMSIZ];
if (!notif_registered)
return;
sprintf(buf, "netdev:%s", sdata->dev->name);
sdata->debugfsdir = debugfs_create_dir(buf,
sdata->local->hw.wiphy->debugfsdir);
}
void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
{
del_files(sdata, sdata->type);
debugfs_remove(sdata->debugfsdir);
sdata->debugfsdir = NULL;
}
void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
int oldtype)
{
del_files(sdata, oldtype);
add_files(sdata);
}
static int netdev_notify(struct notifier_block * nb,
unsigned long state,
void *ndev)
{
struct net_device *dev = ndev;
char buf[10+IFNAMSIZ];
if (state != NETDEV_CHANGENAME)
return 0;
if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
return 0;
if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
return 0;
/* TODO
sprintf(buf, "netdev:%s", dev->name);
debugfs_rename(IEEE80211_DEV_TO_SUB_IF(dev)->debugfsdir, buf);
*/
return 0;
}
static struct notifier_block mac80211_debugfs_netdev_notifier = {
.notifier_call = netdev_notify,
};
void ieee80211_debugfs_netdev_init(void)
{
int err;
err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
if (err) {
printk(KERN_ERR
"mac80211: failed to install netdev notifier,"
" disabling per-netdev debugfs!\n");
} else
notif_registered = 1;
}
void ieee80211_debugfs_netdev_exit(void)
{
unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
notif_registered = 0;
}

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package/mac80211/src/mac80211/debugfs_netdev.h Normal file
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/* routines exported for debugfs handling */
#ifndef __IEEE80211_DEBUGFS_NETDEV_H
#define __IEEE80211_DEBUGFS_NETDEV_H
#ifdef CONFIG_MAC80211_DEBUGFS
void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata);
void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata);
void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
int oldtype);
void ieee80211_debugfs_netdev_init(void);
void ieee80211_debugfs_netdev_exit(void);
#else
static inline void ieee80211_debugfs_add_netdev(
struct ieee80211_sub_if_data *sdata)
{}
static inline void ieee80211_debugfs_remove_netdev(
struct ieee80211_sub_if_data *sdata)
{}
static inline void ieee80211_debugfs_change_if_type(
struct ieee80211_sub_if_data *sdata, int oldtype)
{}
static inline void ieee80211_debugfs_netdev_init(void)
{}
static inline void ieee80211_debugfs_netdev_exit(void)
{}
#endif
#endif /* __IEEE80211_DEBUGFS_NETDEV_H */

247
package/mac80211/src/mac80211/debugfs_sta.c Normal file
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/*
* Copyright 2003-2005 Devicescape Software, Inc.
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/debugfs.h>
#include <linux/ieee80211.h>
#include "ieee80211_i.h"
#include "debugfs.h"
#include "debugfs_sta.h"
#include "sta_info.h"
/* sta attributtes */
#define STA_READ(name, buflen, field, format_string) \
static ssize_t sta_ ##name## _read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
int res; \
struct sta_info *sta = file->private_data; \
char buf[buflen]; \
res = scnprintf(buf, buflen, format_string, sta->field); \
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
}
#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
#define STA_READ_RATE(name, field) \
static ssize_t sta_##name##_read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
struct sta_info *sta = file->private_data; \
struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\
struct ieee80211_hw_mode *mode = local->oper_hw_mode; \
char buf[20]; \
int res = scnprintf(buf, sizeof(buf), "%d\n", \
(sta->field >= 0 && \
sta->field < mode->num_rates) ? \
mode->rates[sta->field].rate : -1); \
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
}
#define STA_OPS(name) \
static const struct file_operations sta_ ##name## _ops = { \
.read = sta_##name##_read, \
.open = mac80211_open_file_generic, \
}
#define STA_FILE(name, field, format) \
STA_READ_##format(name, field) \
STA_OPS(name)
STA_FILE(aid, aid, D);
STA_FILE(key_idx_compression, key_idx_compression, D);
STA_FILE(dev, dev->name, S);
STA_FILE(vlan_id, vlan_id, D);
STA_FILE(rx_packets, rx_packets, LU);
STA_FILE(tx_packets, tx_packets, LU);
STA_FILE(rx_bytes, rx_bytes, LU);
STA_FILE(tx_bytes, tx_bytes, LU);
STA_FILE(rx_duplicates, num_duplicates, LU);
STA_FILE(rx_fragments, rx_fragments, LU);
STA_FILE(rx_dropped, rx_dropped, LU);
STA_FILE(tx_fragments, tx_fragments, LU);
STA_FILE(tx_filtered, tx_filtered_count, LU);
STA_FILE(txrate, txrate, RATE);
STA_FILE(last_txrate, last_txrate, RATE);
STA_FILE(tx_retry_failed, tx_retry_failed, LU);
STA_FILE(tx_retry_count, tx_retry_count, LU);
STA_FILE(last_rssi, last_rssi, D);
STA_FILE(last_signal, last_signal, D);
STA_FILE(last_noise, last_noise, D);
STA_FILE(channel_use, channel_use, D);
STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[100];
struct sta_info *sta = file->private_data;
int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s%s",
sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
sta->flags & WLAN_STA_PS ? "PS\n" : "",
sta->flags & WLAN_STA_TIM ? "TIM\n" : "",
sta->flags & WLAN_STA_PERM ? "PERM\n" : "",
sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
sta->flags & WLAN_STA_WME ? "WME\n" : "",
sta->flags & WLAN_STA_HT ? "HT\n" : "",
sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(flags);
static ssize_t sta_num_ps_buf_frames_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[20];
struct sta_info *sta = file->private_data;
int res = scnprintf(buf, sizeof(buf), "%u\n",
skb_queue_len(&sta->ps_tx_buf));
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(num_ps_buf_frames);
static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[100];
struct sta_info *sta = file->private_data;
int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
sta->last_ack_rssi[0],
sta->last_ack_rssi[1],
sta->last_ack_rssi[2]);
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(last_ack_rssi);
static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[20];
struct sta_info *sta = file->private_data;
int res = scnprintf(buf, sizeof(buf), "%d\n",
sta->last_ack ?
jiffies_to_msecs(jiffies - sta->last_ack) : -1);
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(last_ack_ms);
static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[20];
struct sta_info *sta = file->private_data;
int res = scnprintf(buf, sizeof(buf), "%d\n",
jiffies_to_msecs(jiffies - sta->last_rx));
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(inactive_ms);
static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
int i;
struct sta_info *sta = file->private_data;
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
sta->last_seq_ctrl[i]);
p += scnprintf(p, sizeof(buf)+buf-p, "\n");
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
}
STA_OPS(last_seq_ctrl);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
int i;
struct sta_info *sta = file->private_data;
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
sta->wme_rx_queue[i]);
p += scnprintf(p, sizeof(buf)+buf-p, "\n");
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
}
STA_OPS(wme_rx_queue);
static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
int i;
struct sta_info *sta = file->private_data;
for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
sta->wme_tx_queue[i]);
p += scnprintf(p, sizeof(buf)+buf-p, "\n");
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
}
STA_OPS(wme_tx_queue);
#endif
#define DEBUGFS_ADD(name) \
sta->debugfs.name = debugfs_create_file(#name, 0444, \
sta->debugfs.dir, sta, &sta_ ##name## _ops);
#define DEBUGFS_DEL(name) \
debugfs_remove(sta->debugfs.name);\
sta->debugfs.name = NULL;
void ieee80211_sta_debugfs_add(struct sta_info *sta)
{
char buf[3*6];
struct dentry *stations_dir = sta->local->debugfs.stations;
if (!stations_dir)
return;
sprintf(buf, MAC_FMT, MAC_ARG(sta->addr));
sta->debugfs.dir = debugfs_create_dir(buf, stations_dir);
if (!sta->debugfs.dir)
return;
DEBUGFS_ADD(flags);
DEBUGFS_ADD(num_ps_buf_frames);
DEBUGFS_ADD(last_ack_rssi);
DEBUGFS_ADD(last_ack_ms);
DEBUGFS_ADD(inactive_ms);
DEBUGFS_ADD(last_seq_ctrl);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
DEBUGFS_ADD(wme_rx_queue);
DEBUGFS_ADD(wme_tx_queue);
#endif
}
void ieee80211_sta_debugfs_remove(struct sta_info *sta)
{
DEBUGFS_DEL(flags);
DEBUGFS_DEL(num_ps_buf_frames);
DEBUGFS_DEL(last_ack_rssi);
DEBUGFS_DEL(last_ack_ms);
DEBUGFS_DEL(inactive_ms);
DEBUGFS_DEL(last_seq_ctrl);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
DEBUGFS_DEL(wme_rx_queue);
DEBUGFS_DEL(wme_tx_queue);
#endif
debugfs_remove(sta->debugfs.dir);
sta->debugfs.dir = NULL;
}

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#ifndef __MAC80211_DEBUGFS_STA_H
#define __MAC80211_DEBUGFS_STA_H
#ifdef CONFIG_MAC80211_DEBUGFS
void ieee80211_sta_debugfs_add(struct sta_info *sta);
void ieee80211_sta_debugfs_remove(struct sta_info *sta);
#else
static inline void ieee80211_sta_debugfs_add(struct sta_info *sta) {}
static inline void ieee80211_sta_debugfs_remove(struct sta_info *sta) {}
#endif
#endif /* __MAC80211_DEBUGFS_STA_H */

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/*
* Host AP (software wireless LAN access point) user space daemon for
* Host AP kernel driver
* Copyright 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
* Copyright 2002-2004, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef HOSTAPD_IOCTL_H
#define HOSTAPD_IOCTL_H
#ifdef __KERNEL__
#include <linux/types.h>
#endif /* __KERNEL__ */
#define PRISM2_IOCTL_PRISM2_PARAM (SIOCIWFIRSTPRIV + 0)
#define PRISM2_IOCTL_GET_PRISM2_PARAM (SIOCIWFIRSTPRIV + 1)
#define PRISM2_IOCTL_HOSTAPD (SIOCIWFIRSTPRIV + 3)
/* PRISM2_IOCTL_PRISM2_PARAM ioctl() subtypes:
* This table is no longer added to, the whole sub-ioctl
* mess shall be deleted completely. */
enum {
PRISM2_PARAM_BEACON_INT = 3,
PRISM2_PARAM_AP_BRIDGE_PACKETS = 10,
PRISM2_PARAM_DTIM_PERIOD = 11,
PRISM2_PARAM_AP_AUTH_ALGS = 15,
PRISM2_PARAM_HOST_ENCRYPT = 17,
PRISM2_PARAM_HOST_DECRYPT = 18,
PRISM2_PARAM_IEEE_802_1X = 23,
PRISM2_PARAM_ANTSEL_TX = 24,
PRISM2_PARAM_ANTSEL_RX = 25,
/* Instant802 additions */
PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES = 1001,
PRISM2_PARAM_DROP_UNENCRYPTED = 1002,
PRISM2_PARAM_PREAMBLE = 1003,
PRISM2_PARAM_SHORT_SLOT_TIME = 1006,
PRISM2_PARAM_NEXT_MODE = 1008,
PRISM2_PARAM_CLEAR_KEYS = 1009,
PRISM2_PARAM_RADIO_ENABLED = 1010,
PRISM2_PARAM_ANTENNA_MODE = 1013,
PRISM2_PARAM_PRIVACY_INVOKED = 1014,
PRISM2_PARAM_BROADCAST_SSID = 1015,
PRISM2_PARAM_STAT_TIME = 1016,
PRISM2_PARAM_STA_ANTENNA_SEL = 1017,
PRISM2_PARAM_FORCE_UNICAST_RATE = 1018,
PRISM2_PARAM_RATE_CTRL_NUM_UP = 1019,
PRISM2_PARAM_RATE_CTRL_NUM_DOWN = 1020,
PRISM2_PARAM_MAX_RATECTRL_RATE = 1021,
PRISM2_PARAM_TX_POWER_REDUCTION = 1022,
PRISM2_PARAM_EAPOL = 1023,
PRISM2_PARAM_KEY_TX_RX_THRESHOLD = 1024,
PRISM2_PARAM_KEY_INDEX = 1025,
PRISM2_PARAM_DEFAULT_WEP_ONLY = 1026,
PRISM2_PARAM_WIFI_WME_NOACK_TEST = 1033,
PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS = 1034,
PRISM2_PARAM_SCAN_FLAGS = 1035,
PRISM2_PARAM_HW_MODES = 1036,
PRISM2_PARAM_CREATE_IBSS = 1037,
PRISM2_PARAM_WMM_ENABLED = 1038,
PRISM2_PARAM_MIXED_CELL = 1039,
PRISM2_PARAM_KEY_MGMT = 1040,
PRISM2_PARAM_RADAR_DETECT = 1043,
PRISM2_PARAM_SPECTRUM_MGMT = 1044,
PRISM2_PARAM_USER_SPACE_MLME = 1045,
PRISM2_PARAM_MGMT_IF = 1046,
};
/* PRISM2_IOCTL_HOSTAPD ioctl() cmd:
* This table is no longer added to, the hostapd ioctl
* shall be deleted completely. */
enum {
PRISM2_HOSTAPD_FLUSH = 1,
PRISM2_HOSTAPD_ADD_STA = 2,
PRISM2_HOSTAPD_REMOVE_STA = 3,
PRISM2_HOSTAPD_GET_INFO_STA = 4,
PRISM2_SET_ENCRYPTION = 6,
PRISM2_GET_ENCRYPTION = 7,
PRISM2_HOSTAPD_SET_FLAGS_STA = 8,
PRISM2_HOSTAPD_MLME = 13,
/* Instant802 additions */
PRISM2_HOSTAPD_SET_BEACON = 1001,
PRISM2_HOSTAPD_GET_HW_FEATURES = 1002,
PRISM2_HOSTAPD_WPA_TRIGGER = 1004,
PRISM2_HOSTAPD_SET_RATE_SETS = 1005,
PRISM2_HOSTAPD_ADD_IF = 1006,
PRISM2_HOSTAPD_REMOVE_IF = 1007,
PRISM2_HOSTAPD_GET_DOT11COUNTERSTABLE = 1008,
PRISM2_HOSTAPD_GET_LOAD_STATS = 1009,
PRISM2_HOSTAPD_SET_STA_VLAN = 1010,
PRISM2_HOSTAPD_SET_GENERIC_INFO_ELEM = 1011,
PRISM2_HOSTAPD_SET_CHANNEL_FLAG = 1012,
PRISM2_HOSTAPD_SET_REGULATORY_DOMAIN = 1013,
PRISM2_HOSTAPD_SET_TX_QUEUE_PARAMS = 1014,
PRISM2_HOSTAPD_GET_TX_STATS = 1016,
PRISM2_HOSTAPD_UPDATE_IF = 1017,
PRISM2_HOSTAPD_SCAN_REQ = 1019,
PRISM2_STA_GET_STATE = 1020,
PRISM2_HOSTAPD_FLUSH_IFS = 1021,
PRISM2_HOSTAPD_SET_RADAR_PARAMS = 1023,
PRISM2_HOSTAPD_SET_QUIET_PARAMS = 1024,
};
#define PRISM2_HOSTAPD_MAX_BUF_SIZE 2048
#define HOSTAP_CRYPT_ALG_NAME_LEN 16
#ifndef ALIGNED
#define ALIGNED __attribute__ ((aligned))
#endif
struct prism2_hostapd_param {
u32 cmd;
u8 sta_addr[ETH_ALEN];
u8 pad[2];
union {
struct {
u16 aid;
u16 capability;
u8 supp_rates[32];
u8 wds_flags;
#define IEEE80211_STA_DYNAMIC_ENC BIT(0)
u8 enc_flags;
u16 listen_interval;
} add_sta;
struct {
u32 inactive_msec;
u32 rx_packets;
u32 tx_packets;
u32 rx_bytes;
u32 tx_bytes;
u32 current_tx_rate; /* in 100 kbps */
u32 channel_use;
u32 flags;
u32 num_ps_buf_frames;
u32 tx_retry_failed;
u32 tx_retry_count;
u32 last_rssi;
u32 last_ack_rssi;
} get_info_sta;
struct {
char alg[HOSTAP_CRYPT_ALG_NAME_LEN];
u32 flags;
u32 err;
u8 idx;
#define HOSTAP_SEQ_COUNTER_SIZE 8
u8 seq_counter[HOSTAP_SEQ_COUNTER_SIZE];
u16 key_len;
u8 key[0] ALIGNED;
} crypt;
struct {
u32 flags_and;
u32 flags_or;
} set_flags_sta;
struct {
u16 head_len;
u16 tail_len;
u8 data[0] ALIGNED; /* head_len + tail_len bytes */
} beacon;
struct {
u16 num_modes;
u16 flags;
u8 data[0] ALIGNED; /* num_modes * feature data */
} hw_features;
struct {
u8 now;
s8 our_mode_only;
s16 last_rx;
u16 channel;
s16 interval; /* seconds */
s32 listen; /* microseconds */
} scan;
struct {
#define WPA_TRIGGER_FAIL_TX_MIC BIT(0)
#define WPA_TRIGGER_FAIL_TX_ICV BIT(1)
#define WPA_TRIGGER_FAIL_RX_MIC BIT(2)
#define WPA_TRIGGER_FAIL_RX_ICV BIT(3)
#define WPA_TRIGGER_TX_REPLAY BIT(4)
#define WPA_TRIGGER_TX_REPLAY_FRAG BIT(5)
#define WPA_TRIGGER_TX_SKIP_SEQ BIT(6)
u32 trigger;
} wpa_trigger;
struct {
u16 mode; /* MODE_* */
u16 num_supported_rates;
u16 num_basic_rates;
u8 data[0] ALIGNED; /* num_supported_rates * u16 +
* num_basic_rates * u16 */
} set_rate_sets;
struct {
u8 type; /* WDS, VLAN, etc */
u8 name[IFNAMSIZ];
u8 data[0] ALIGNED;
} if_info;
struct dot11_counters {
u32 dot11TransmittedFragmentCount;
u32 dot11MulticastTransmittedFrameCount;
u32 dot11FailedCount;
u32 dot11ReceivedFragmentCount;
u32 dot11MulticastReceivedFrameCount;
u32 dot11FCSErrorCount;
u32 dot11TransmittedFrameCount;
u32 dot11WEPUndecryptableCount;
u32 dot11ACKFailureCount;
u32 dot11RTSFailureCount;
u32 dot11RTSSuccessCount;
} dot11CountersTable;
struct {
#define LOAD_STATS_CLEAR BIT(1)
u32 flags;
u32 channel_use;
} get_load_stats;
struct {
char vlan_name[IFNAMSIZ];
int vlan_id;
} set_sta_vlan;
struct {
u8 len;
u8 data[0] ALIGNED;
} set_generic_info_elem;
struct {
u16 mode; /* MODE_* */
u16 chan;
u32 flag;
u8 power_level; /* regulatory limit in dBm */
u8 antenna_max;
} set_channel_flag;
struct {
u32 rd;
} set_regulatory_domain;
struct {
u32 queue;
s32 aifs;
u32 cw_min;
u32 cw_max;
u32 burst_time; /* maximum burst time in 0.1 ms, i.e.,
* 10 = 1 ms */
} tx_queue_params;
struct ieee80211_tx_stats {
struct {
unsigned int len; /* num packets in queue */
unsigned int limit; /* queue len (soft) limit
*/
unsigned int count; /* total num frames sent */
} data[4];
} get_tx_stats;
struct {
u8 ssid_len;
u8 ssid[0] ALIGNED;
} scan_req;
struct {
u32 state;
} sta_get_state;
struct {
#define MLME_STA_DEAUTH 0
#define MLME_STA_DISASSOC 1
u16 cmd;
u16 reason_code;
} mlme;
struct {
u8 radar_firpwr_threshold;
u8 radar_rssi_threshold;
u8 pulse_height_threshold;
u8 pulse_rssi_threshold;
u8 pulse_inband_threshold;
} radar;
struct {
unsigned int period;
unsigned int offset;
unsigned int duration;
} quiet;
struct {
u8 dummy[80]; /* Make sizeof() this struct large enough
* with some compiler versions. */
} dummy;
} u;
};
#define HOSTAP_CRYPT_FLAG_SET_TX_KEY BIT(0)
#define HOSTAP_CRYPT_FLAG_PERMANENT BIT(1)
#define HOSTAP_CRYPT_ERR_UNKNOWN_ALG 2
#define HOSTAP_CRYPT_ERR_UNKNOWN_ADDR 3
#define HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED 4
#define HOSTAP_CRYPT_ERR_KEY_SET_FAILED 5
#define HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED 6
#define HOSTAP_CRYPT_ERR_CARD_CONF_FAILED 7
#define HOSTAP_HW_FLAG_NULLFUNC_OK BIT(0)
enum {
IEEE80211_KEY_MGMT_NONE = 0,
IEEE80211_KEY_MGMT_IEEE8021X = 1,
IEEE80211_KEY_MGMT_WPA_PSK = 2,
IEEE80211_KEY_MGMT_WPA_EAP = 3,
};
/* Data structures used for get_hw_features ioctl */
struct hostapd_ioctl_hw_modes_hdr {
int mode;
int num_channels;
int num_rates;
};
struct ieee80211_channel_data {
short chan; /* channel number (IEEE 802.11) */
short freq; /* frequency in MHz */
int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */
};
struct ieee80211_rate_data {
int rate; /* rate in 100 kbps */
int flags; /* IEEE80211_RATE_ flags */
};
/* ADD_IF, REMOVE_IF, and UPDATE_IF 'type' argument */
enum {
HOSTAP_IF_WDS = 1, HOSTAP_IF_VLAN = 2, HOSTAP_IF_BSS = 3,
HOSTAP_IF_STA = 4
};
struct hostapd_if_wds {
u8 remote_addr[ETH_ALEN];
};
struct hostapd_if_vlan {
u8 id;
};
struct hostapd_if_bss {
u8 bssid[ETH_ALEN];
};
struct hostapd_if_sta {
};
#endif /* HOSTAPD_IOCTL_H */

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/*
* mac80211 configuration hooks for cfg80211
*
* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
*
* This file is GPLv2 as found in COPYING.
*/
#include <linux/nl80211.h>
#include <linux/rtnetlink.h>
#include <net/cfg80211.h>
#include "ieee80211_i.h"
#include "ieee80211_cfg.h"
static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
unsigned int type)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
int itype;
if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
return -ENODEV;
switch (type) {
case NL80211_IFTYPE_UNSPECIFIED:
itype = IEEE80211_IF_TYPE_STA;
break;
case NL80211_IFTYPE_ADHOC:
itype = IEEE80211_IF_TYPE_IBSS;
break;
case NL80211_IFTYPE_STATION:
itype = IEEE80211_IF_TYPE_STA;
break;
case NL80211_IFTYPE_AP:
itype = IEEE80211_IF_TYPE_AP;
break;
case NL80211_IFTYPE_WDS:
itype = IEEE80211_IF_TYPE_WDS;
break;
case NL80211_IFTYPE_MONITOR:
itype = IEEE80211_IF_TYPE_MNTR;
break;
default:
return -EINVAL;
}
return ieee80211_if_add(local->mdev, name, NULL, itype);
}
static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct net_device *dev;
char *name;
if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
return -ENODEV;
dev = dev_get_by_index(ifindex);
if (!dev)
return 0;
name = dev->name;
dev_put(dev);
return ieee80211_if_remove(local->mdev, name, -1);
}
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
};

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/*
* mac80211 configuration hooks for cfg80211
*/
#ifndef __IEEE80211_CFG_H
#define __IEEE80211_CFG_H
extern struct cfg80211_ops mac80211_config_ops;
#endif /* __IEEE80211_CFG_H */

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/*
* IEEE 802.11 driver (80211.o) -- hostapd interface
* Copyright 2002-2004, Instant802 Networks, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef IEEE80211_COMMON_H
#define IEEE80211_COMMON_H
#include <linux/types.h>
/*
* This is common header information with user space. It is used on all
* frames sent to wlan#ap interface.
*/
#define IEEE80211_FI_VERSION 0x80211001
struct ieee80211_frame_info {
__be32 version;
__be32 length;
__be64 mactime;
__be64 hosttime;
__be32 phytype;
__be32 channel;
__be32 datarate;
__be32 antenna;
__be32 priority;
__be32 ssi_type;
__be32 ssi_signal;
__be32 ssi_noise;
__be32 preamble;
__be32 encoding;
/* Note: this structure is otherwise identical to capture format used
* in linux-wlan-ng, but this additional field is used to provide meta
* data about the frame to hostapd. This was the easiest method for
* providing this information, but this might change in the future. */
__be32 msg_type;
} __attribute__ ((packed));
enum ieee80211_msg_type {
ieee80211_msg_normal = 0,
ieee80211_msg_tx_callback_ack = 1,
ieee80211_msg_tx_callback_fail = 2,
ieee80211_msg_passive_scan = 3,
ieee80211_msg_wep_frame_unknown_key = 4,
ieee80211_msg_michael_mic_failure = 5,
/* hole at 6, was monitor but never sent to userspace */
ieee80211_msg_sta_not_assoc = 7,
ieee80211_msg_set_aid_for_sta = 8 /* used by Intersil MVC driver */,
ieee80211_msg_key_threshold_notification = 9,
ieee80211_msg_radar = 11,
};
struct ieee80211_msg_set_aid_for_sta {
char sta_address[ETH_ALEN];
u16 aid;
};
struct ieee80211_msg_key_notification {
int tx_rx_count;
char ifname[IFNAMSIZ];
u8 addr[ETH_ALEN]; /* ff:ff:ff:ff:ff:ff for broadcast keys */
};
enum ieee80211_phytype {
ieee80211_phytype_fhss_dot11_97 = 1,
ieee80211_phytype_dsss_dot11_97 = 2,
ieee80211_phytype_irbaseband = 3,
ieee80211_phytype_dsss_dot11_b = 4,
ieee80211_phytype_pbcc_dot11_b = 5,
ieee80211_phytype_ofdm_dot11_g = 6,
ieee80211_phytype_pbcc_dot11_g = 7,
ieee80211_phytype_ofdm_dot11_a = 8,
ieee80211_phytype_dsss_dot11_turbog = 255,
ieee80211_phytype_dsss_dot11_turbo = 256,
};
enum ieee80211_ssi_type {
ieee80211_ssi_none = 0,
ieee80211_ssi_norm = 1, /* normalized, 0-1000 */
ieee80211_ssi_dbm = 2,
ieee80211_ssi_raw = 3, /* raw SSI */
};
struct ieee80211_radar_info {
int channel;
int radar;
int radar_type;
};
#endif /* IEEE80211_COMMON_H */

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/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef IEEE80211_I_H
#define IEEE80211_I_H
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/if_ether.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <linux/types.h>
#include <linux/spinlock.h>
#include <net/wireless.h>
#include "ieee80211_key.h"
#include "sta_info.h"
/* ieee80211.o internal definitions, etc. These are not included into
* low-level drivers. */
#ifndef ETH_P_PAE
#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
#endif /* ETH_P_PAE */
#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
struct ieee80211_local;
#define BIT(x) (1 << (x))
#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
/* Maximum number of broadcast/multicast frames to buffer when some of the
* associated stations are using power saving. */
#define AP_MAX_BC_BUFFER 128
/* Maximum number of frames buffered to all STAs, including multicast frames.
* Note: increasing this limit increases the potential memory requirement. Each
* frame can be up to about 2 kB long. */
#define TOTAL_MAX_TX_BUFFER 512
/* Required encryption head and tailroom */
#define IEEE80211_ENCRYPT_HEADROOM 8
#define IEEE80211_ENCRYPT_TAILROOM 12
/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
* reception of at least three fragmented frames. This limit can be increased
* by changing this define, at the cost of slower frame reassembly and
* increased memory use (about 2 kB of RAM per entry). */
#define IEEE80211_FRAGMENT_MAX 4
/* Minimum and Maximum TSID used by EDCA. EDCA uses 0~7; HCCA uses 8~15 */
#define EDCA_TSID_MIN 0
#define EDCA_TSID_MAX 7
struct ieee80211_fragment_entry {
unsigned long first_frag_time;
unsigned int seq;
unsigned int rx_queue;
unsigned int last_frag;
unsigned int extra_len;
struct sk_buff_head skb_list;
int ccmp; /* Whether fragments were encrypted with CCMP */
u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
};
struct ieee80211_sta_bss {
struct list_head list;
struct ieee80211_sta_bss *hnext;
atomic_t users;
u8 bssid[ETH_ALEN];
u8 ssid[IEEE80211_MAX_SSID_LEN];
size_t ssid_len;
u16 capability; /* host byte order */
int hw_mode;
int channel;
int freq;
int rssi, signal, noise;
u8 *wpa_ie;
size_t wpa_ie_len;
u8 *rsn_ie;
size_t rsn_ie_len;
u8 *wmm_ie;
size_t wmm_ie_len;
u8 *ht_ie;
size_t ht_ie_len;
#define IEEE80211_MAX_SUPP_RATES 32
u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
size_t supp_rates_len;
int beacon_int;
u64 timestamp;
int probe_resp;
unsigned long last_update;
};
typedef enum {
TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
} ieee80211_txrx_result;
struct ieee80211_txrx_data {
struct sk_buff *skb;
struct net_device *dev;
struct ieee80211_local *local;
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
u16 fc, ethertype;
struct ieee80211_key *key;
unsigned int fragmented:1; /* whether the MSDU was fragmented */
union {
struct {
struct ieee80211_tx_control *control;
unsigned int unicast:1;
unsigned int ps_buffered:1;
unsigned int short_preamble:1;
unsigned int probe_last_frag:1;
struct ieee80211_hw_mode *mode;
struct ieee80211_rate *rate;
/* use this rate (if set) for last fragment; rate can
* be set to lower rate for the first fragments, e.g.,
* when using CTS protection with IEEE 802.11g. */
struct ieee80211_rate *last_frag_rate;
int last_frag_hwrate;
int mgmt_interface;
/* Extra fragments (in addition to the first fragment
* in skb) */
int num_extra_frag;
struct sk_buff **extra_frag;
} tx;
struct {
struct ieee80211_rx_status *status;
int sent_ps_buffered;
int queue;
int load;
u16 qos_control;
unsigned int in_scan:1;
/* frame is destined to interface currently processed
* (including multicast frames) */
unsigned int ra_match:1;
unsigned int is_agg_frame:1;
} rx;
} u;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
int wpa_test;
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
};
/* Stored in sk_buff->cb */
struct ieee80211_tx_packet_data {
int ifindex;
unsigned long jiffies;
unsigned int req_tx_status:1;
unsigned int do_not_encrypt:1;
unsigned int requeue:1;
unsigned int mgmt_iface:1;
unsigned int queue:4;
};
struct ieee80211_tx_stored_packet {
struct ieee80211_tx_control control;
struct sk_buff *skb;
int num_extra_frag;
struct sk_buff **extra_frag;
int last_frag_rateidx;
int last_frag_hwrate;
struct ieee80211_rate *last_frag_rate;
unsigned int last_frag_rate_ctrl_probe:1;
};
struct sta_ts_data {
enum {
TS_STATUS_UNUSED = 0,
TS_STATUS_ACTIVE = 1,
TS_STATUS_INACTIVE = 2,
TS_STATUS_THROTTLING = 3,
} status;
u8 dialog_token;
u8 up;
u32 admitted_time_usec;
u32 used_time_usec;
};
typedef ieee80211_txrx_result (*ieee80211_tx_handler)
(struct ieee80211_txrx_data *tx);
typedef ieee80211_txrx_result (*ieee80211_rx_handler)
(struct ieee80211_txrx_data *rx);
struct ieee80211_if_ap {
u8 *beacon_head, *beacon_tail;
int beacon_head_len, beacon_tail_len;
u8 ssid[IEEE80211_MAX_SSID_LEN];
size_t ssid_len;
u8 *generic_elem;
size_t generic_elem_len;
/* yes, this looks ugly, but guarantees that we can later use
* bitmap_empty :)
* NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
atomic_t num_sta_ps; /* number of stations in PS mode */
struct sk_buff_head ps_bc_buf;
int dtim_period, dtim_count;
int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
int max_ratectrl_rateidx; /* max TX rateidx for rate control */
int num_beacons; /* number of TXed beacon frames for this BSS */
};
struct ieee80211_if_wds {
u8 remote_addr[ETH_ALEN];
struct sta_info *sta;
};
struct ieee80211_if_vlan {
u8 id;
};
struct ieee80211_if_sta {
enum {
IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
} state;
struct timer_list timer;
struct work_struct work;
struct timer_list admit_timer; /* Recompute EDCA admitted time */
u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
u8 ssid[IEEE80211_MAX_SSID_LEN];
size_t ssid_len;
u16 aid;
u16 ap_capab, capab;
u8 *extra_ie; /* to be added to the end of AssocReq */
size_t extra_ie_len;
/* The last AssocReq/Resp IEs */
u8 *assocreq_ies, *assocresp_ies;
size_t assocreq_ies_len, assocresp_ies_len;
int auth_tries, assoc_tries;
unsigned int ssid_set:1;
unsigned int bssid_set:1;
unsigned int prev_bssid_set:1;
unsigned int authenticated:1;
unsigned int associated:1;
unsigned int probereq_poll:1;
unsigned int use_protection:1;
unsigned int create_ibss:1;
unsigned int mixed_cell:1;
unsigned int wmm_enabled:1;
unsigned int ht_enabled:1;
unsigned int auto_ssid_sel:1;
unsigned int auto_bssid_sel:1;
unsigned int auto_channel_sel:1;
#define IEEE80211_STA_REQ_SCAN 0
#define IEEE80211_STA_REQ_AUTH 1
#define IEEE80211_STA_REQ_RUN 2
unsigned long request;
struct sk_buff_head skb_queue;
int key_mgmt;
unsigned long last_probe;
#define IEEE80211_AUTH_ALG_OPEN BIT(0)
#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
#define IEEE80211_AUTH_ALG_LEAP BIT(2)
unsigned int auth_algs; /* bitfield of allowed auth algs */
int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
int auth_transaction;
unsigned long ibss_join_req;
struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
u32 supp_rates_bits;
int wmm_last_param_set;
u32 dot11EDCAAveragingPeriod;
u32 MPDUExchangeTime;
#define STA_TSID_NUM 16
#define STA_TSDIR_NUM 2
/* EDCA: 0~7, HCCA: 8~15 */
struct sta_ts_data ts_data[STA_TSID_NUM][STA_TSDIR_NUM];
};
struct ieee80211_sub_if_data {
struct list_head list;
unsigned int type;
struct wireless_dev wdev;
struct net_device *dev;
struct ieee80211_local *local;
int mc_count;
unsigned int allmulti:1;
unsigned int promisc:1;
struct net_device_stats stats;
int drop_unencrypted;
int eapol; /* 0 = process EAPOL frames as normal data frames,
* 1 = send EAPOL frames through wlan#ap to hostapd
* (default) */
int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
* port */
u16 sequence;
/* Fragment table for host-based reassembly */
struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
unsigned int fragment_next;
#define NUM_DEFAULT_KEYS 4
struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
struct ieee80211_key *default_key;
struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
union {
struct ieee80211_if_ap ap;
struct ieee80211_if_wds wds;
struct ieee80211_if_vlan vlan;
struct ieee80211_if_sta sta;
} u;
int channel_use;
int channel_use_raw;
#ifdef CONFIG_MAC80211_DEBUGFS
struct dentry *debugfsdir;
union {
struct {
struct dentry *channel_use;
struct dentry *drop_unencrypted;
struct dentry *eapol;
struct dentry *ieee8021_x;
struct dentry *state;
struct dentry *bssid;
struct dentry *prev_bssid;
struct dentry *ssid_len;
struct dentry *aid;
struct dentry *ap_capab;
struct dentry *capab;
struct dentry *extra_ie_len;
struct dentry *auth_tries;
struct dentry *assoc_tries;
struct dentry *auth_algs;
struct dentry *auth_alg;
struct dentry *auth_transaction;
struct dentry *flags;
struct dentry *qos_dir;
struct {
struct dentry *addts_11e;
struct dentry *addts_wmm;
struct dentry *delts_11e;
struct dentry *delts_wmm;
struct dentry *dls_mac;
struct dentry *dls_op;
} qos;
struct dentry *tsinfo_dir;
struct {
struct dentry *tsid;
struct dentry *direction;
struct dentry *up;
} tsinfo;
struct dentry *tspec_dir;
struct {
struct dentry *nominal_msdu_size;
struct dentry *max_msdu_size;
struct dentry *min_service_interval;
struct dentry *max_service_interval;
struct dentry *inactivity_interval;
struct dentry *suspension_interval;
struct dentry *service_start_time;
struct dentry *min_data_rate;
struct dentry *mean_data_rate;
struct dentry *peak_data_rate;
struct dentry *burst_size;
struct dentry *delay_bound;
struct dentry *min_phy_rate;
struct dentry *surplus_band_allow;
struct dentry *medium_time;
} tspec;
} sta;
struct {
struct dentry *channel_use;
struct dentry *drop_unencrypted;
struct dentry *eapol;
struct dentry *ieee8021_x;
struct dentry *num_sta_ps;
struct dentry *dtim_period;
struct dentry *dtim_count;
struct dentry *num_beacons;
struct dentry *force_unicast_rateidx;
struct dentry *max_ratectrl_rateidx;
struct dentry *num_buffered_multicast;
struct dentry *beacon_head_len;
struct dentry *beacon_tail_len;
} ap;
struct {
struct dentry *channel_use;
struct dentry *drop_unencrypted;
struct dentry *eapol;
struct dentry *ieee8021_x;
struct dentry *peer;
} wds;
struct {
struct dentry *channel_use;
struct dentry *drop_unencrypted;
struct dentry *eapol;
struct dentry *ieee8021_x;
struct dentry *vlan_id;
} vlan;
struct {
struct dentry *mode;
} monitor;
struct dentry *default_key;
} debugfs;
#endif
};
#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
enum {
IEEE80211_RX_MSG = 1,
IEEE80211_TX_STATUS_MSG = 2,
};
struct ieee80211_local {
/* embed the driver visible part.
* don't cast (use the static inlines below), but we keep
* it first anyway so they become a no-op */
struct ieee80211_hw hw;
const struct ieee80211_ops *ops;
/* List of registered struct ieee80211_hw_mode */
struct list_head modes_list;
struct net_device *mdev; /* wmaster# - "master" 802.11 device */
struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
int open_count;
int monitors;
struct iw_statistics wstats;
u8 wstats_flags;
enum {
IEEE80211_DEV_UNINITIALIZED = 0,
IEEE80211_DEV_REGISTERED,
IEEE80211_DEV_UNREGISTERED,
} reg_state;
/* Tasklet and skb queue to process calls from IRQ mode. All frames
* added to skb_queue will be processed, but frames in
* skb_queue_unreliable may be dropped if the total length of these
* queues increases over the limit. */
#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
struct tasklet_struct tasklet;
struct sk_buff_head skb_queue;
struct sk_buff_head skb_queue_unreliable;
/* Station data structures */
spinlock_t sta_lock; /* mutex for STA data structures */
int num_sta; /* number of stations in sta_list */
struct list_head sta_list;
struct list_head deleted_sta_list;
struct sta_info *sta_hash[STA_HASH_SIZE];
struct timer_list sta_cleanup;
unsigned long state[NUM_TX_DATA_QUEUES];
struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
struct tasklet_struct tx_pending_tasklet;
int mc_count; /* total count of multicast entries in all interfaces */
int iff_allmultis, iff_promiscs;
/* number of interfaces with corresponding IFF_ flags */
struct rate_control_ref *rate_ctrl;
int next_mode; /* MODE_IEEE80211*
* The mode preference for next channel change. This is
* used to select .11g vs. .11b channels (or 4.9 GHz vs.
* .11a) when the channel number is not unique. */
/* Supported and basic rate filters for different modes. These are
* pointers to -1 terminated lists and rates in 100 kbps units. */
int *supp_rates[NUM_IEEE80211_MODES];
int *basic_rates[NUM_IEEE80211_MODES];
int rts_threshold;
int cts_protect_erp_frames;
int fragmentation_threshold;
int short_retry_limit; /* dot11ShortRetryLimit */
int long_retry_limit; /* dot11LongRetryLimit */
int short_preamble; /* use short preamble with IEEE 802.11b */
struct crypto_blkcipher *wep_tx_tfm;
struct crypto_blkcipher *wep_rx_tfm;
u32 wep_iv;
int key_tx_rx_threshold; /* number of times any key can be used in TX
* or RX before generating a rekey
* notification; 0 = notification disabled. */
int bridge_packets; /* bridge packets between associated stations and
* deliver multicast frames both back to wireless
* media and to the local net stack */
ieee80211_rx_handler *rx_pre_handlers;
ieee80211_rx_handler *rx_handlers;
ieee80211_tx_handler *tx_handlers;
rwlock_t sub_if_lock; /* Protects sub_if_list. Cannot be taken under
* sta_bss_lock or sta_lock. */
struct list_head sub_if_list;
int sta_scanning;
int scan_channel_idx;
enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
unsigned long last_scan_completed;
struct delayed_work scan_work;
struct net_device *scan_dev;
struct ieee80211_channel *oper_channel, *scan_channel;
struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
size_t scan_ssid_len;
struct list_head sta_bss_list;
struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
spinlock_t sta_bss_lock;
#define IEEE80211_SCAN_MATCH_SSID BIT(0)
#define IEEE80211_SCAN_WPA_ONLY BIT(1)
#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
int scan_flags;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
u32 wpa_trigger;
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
/* SNMP counters */
/* dot11CountersTable */
u32 dot11TransmittedFragmentCount;
u32 dot11MulticastTransmittedFrameCount;
u32 dot11FailedCount;
u32 dot11RetryCount;
u32 dot11MultipleRetryCount;
u32 dot11FrameDuplicateCount;
u32 dot11ReceivedFragmentCount;
u32 dot11MulticastReceivedFrameCount;
u32 dot11TransmittedFrameCount;
u32 dot11WEPUndecryptableCount;
#ifdef CONFIG_MAC80211_LEDS
int tx_led_counter, rx_led_counter;
struct led_trigger *tx_led, *rx_led;
char tx_led_name[32], rx_led_name[32];
#endif
u32 channel_use;
u32 channel_use_raw;
u32 stat_time;
struct timer_list stat_timer;
#ifdef CONFIG_MAC80211_DEBUGFS
struct work_struct sta_debugfs_add;
#endif
enum {
STA_ANTENNA_SEL_AUTO = 0,
STA_ANTENNA_SEL_SW_CTRL = 1,
STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2
} sta_antenna_sel;
int rate_ctrl_num_up, rate_ctrl_num_down;
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
/* TX/RX handler statistics */
unsigned int tx_handlers_drop;
unsigned int tx_handlers_queued;
unsigned int tx_handlers_drop_unencrypted;
unsigned int tx_handlers_drop_fragment;
unsigned int tx_handlers_drop_wep;
unsigned int tx_handlers_drop_not_assoc;
unsigned int tx_handlers_drop_unauth_port;
unsigned int rx_handlers_drop;
unsigned int rx_handlers_queued;
unsigned int rx_handlers_drop_nullfunc;
unsigned int rx_handlers_drop_defrag;
unsigned int rx_handlers_drop_short;
unsigned int rx_handlers_drop_passive_scan;
unsigned int tx_expand_skb_head;
unsigned int tx_expand_skb_head_cloned;
unsigned int rx_expand_skb_head;
unsigned int rx_expand_skb_head2;
unsigned int rx_handlers_fragments;
unsigned int tx_status_drop;
unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
#define I802_DEBUG_INC(c) (c)++
#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
#define I802_DEBUG_INC(c) do { } while (0)
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
int default_wep_only; /* only default WEP keys are used with this
* interface; this is used to decide when hwaccel
* can be used with default keys */
int total_ps_buffered; /* total number of all buffered unicast and
* multicast packets for power saving stations
*/
int allow_broadcast_always; /* whether to allow TX of broadcast frames
* even when there are no associated STAs
*/
int wifi_wme_noack_test;
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
unsigned int enabled_modes; /* bitfield of allowed modes;
* (1 << MODE_*) */
unsigned int hw_modes; /* bitfield of supported hardware modes;
* (1 << MODE_*) */
int user_space_mlme;
#ifdef CONFIG_MAC80211_DEBUGFS
struct local_debugfsdentries {
struct dentry *channel;
struct dentry *frequency;
struct dentry *radar_detect;
struct dentry *antenna_sel_tx;
struct dentry *antenna_sel_rx;
struct dentry *bridge_packets;
struct dentry *key_tx_rx_threshold;
struct dentry *rts_threshold;
struct dentry *fragmentation_threshold;
struct dentry *short_retry_limit;
struct dentry *long_retry_limit;
struct dentry *total_ps_buffered;
struct dentry *mode;
struct dentry *wep_iv;
struct dentry *rate_ctrl_alg;
struct dentry *tx_power_reduction;
struct dentry *modes;
struct dentry *statistics;
struct local_debugfsdentries_statsdentries {
struct dentry *transmitted_fragment_count;
struct dentry *multicast_transmitted_frame_count;
struct dentry *failed_count;
struct dentry *retry_count;
struct dentry *multiple_retry_count;
struct dentry *frame_duplicate_count;
struct dentry *received_fragment_count;
struct dentry *multicast_received_frame_count;
struct dentry *transmitted_frame_count;
struct dentry *wep_undecryptable_count;
struct dentry *num_scans;
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
struct dentry *tx_handlers_drop;
struct dentry *tx_handlers_queued;
struct dentry *tx_handlers_drop_unencrypted;
struct dentry *tx_handlers_drop_fragment;
struct dentry *tx_handlers_drop_wep;
struct dentry *tx_handlers_drop_not_assoc;
struct dentry *tx_handlers_drop_unauth_port;
struct dentry *rx_handlers_drop;
struct dentry *rx_handlers_queued;
struct dentry *rx_handlers_drop_nullfunc;
struct dentry *rx_handlers_drop_defrag;
struct dentry *rx_handlers_drop_short;
struct dentry *rx_handlers_drop_passive_scan;
struct dentry *tx_expand_skb_head;
struct dentry *tx_expand_skb_head_cloned;
struct dentry *rx_expand_skb_head;
struct dentry *rx_expand_skb_head2;
struct dentry *rx_handlers_fragments;
struct dentry *tx_status_drop;
struct dentry *wme_tx_queue;
struct dentry *wme_rx_queue;
#endif
struct dentry *dot11ACKFailureCount;
struct dentry *dot11RTSFailureCount;
struct dentry *dot11FCSErrorCount;
struct dentry *dot11RTSSuccessCount;
} stats;
struct dentry *stations;
struct dentry *keys;
} debugfs;
#endif
};
enum sta_link_direction {
STA_TS_UPLINK = 0,
STA_TS_DOWNLINK = 1,
};
static inline struct ieee80211_local *hw_to_local(
struct ieee80211_hw *hw)
{
return container_of(hw, struct ieee80211_local, hw);
}
static inline struct ieee80211_hw *local_to_hw(
struct ieee80211_local *local)
{
return &local->hw;
}
enum ieee80211_link_state_t {
IEEE80211_LINK_STATE_XOFF = 0,
IEEE80211_LINK_STATE_PENDING,
};
struct sta_attribute {
struct attribute attr;
ssize_t (*show)(const struct sta_info *, char *buf);
ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
};
static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid)
{
/*
* This format has ben mandated by the IEEE specifications,
* so this line may not be changed to use the __set_bit() format.
*/
bss->tim[(aid)/8] |= 1<<((aid) % 8);
}
static inline void bss_tim_set(struct ieee80211_local *local,
struct ieee80211_if_ap *bss, int aid)
{
spin_lock_bh(&local->sta_lock);
__bss_tim_set(bss, aid);
spin_unlock_bh(&local->sta_lock);
}
static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid)
{
/*
* This format has ben mandated by the IEEE specifications,
* so this line may not be changed to use the __clear_bit() format.
*/
bss->tim[(aid)/8] &= !(1<<((aid) % 8));
}
static inline void bss_tim_clear(struct ieee80211_local *local,
struct ieee80211_if_ap *bss, int aid)
{
spin_lock_bh(&local->sta_lock);
__bss_tim_clear(bss, aid);
spin_unlock_bh(&local->sta_lock);
}
/**
* ieee80211_is_erp_rate - Check if a rate is an ERP rate
* @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
* @rate: Transmission rate to check, in 100 kbps
*
* Check if a given rate is an Extended Rate PHY (ERP) rate.
*/
static inline int ieee80211_is_erp_rate(int phymode, int rate)
{
if (phymode == MODE_IEEE80211G) {
if (rate != 10 && rate != 20 &&
rate != 55 && rate != 110)
return 1;
}
return 0;
}
/* ieee80211.c */
int ieee80211_hw_config(struct ieee80211_local *local);
int ieee80211_if_config(struct net_device *dev);
int ieee80211_if_config_beacon(struct net_device *dev);
struct ieee80211_key_conf *
ieee80211_key_data2conf(struct ieee80211_local *local,
const struct ieee80211_key *data);
struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
int idx, size_t key_len, gfp_t flags);
void ieee80211_key_free(struct ieee80211_key *key);
void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
struct ieee80211_rx_status *status, u32 msg_type);
void ieee80211_prepare_rates(struct ieee80211_local *local,
struct ieee80211_hw_mode *mode);
void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
void ieee80211_if_setup(struct net_device *dev);
void ieee80211_if_mgmt_setup(struct net_device *dev);
int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
const char *name);
struct net_device_stats *ieee80211_dev_stats(struct net_device *dev);
/* ieee80211_ioctl.c */
int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
extern const struct iw_handler_def ieee80211_iw_handler_def;
/* Set hw encryption from ieee80211 */
int ieee80211_set_hw_encryption(struct net_device *dev,
struct sta_info *sta, u8 addr[ETH_ALEN],
struct ieee80211_key *key);
void ieee80211_update_default_wep_only(struct ieee80211_local *local);
/* Least common multiple of the used rates (in 100 kbps). This is used to
* calculate rate_inv values for each rate so that only integers are needed. */
#define CHAN_UTIL_RATE_LCM 95040
/* 1 usec is 1/8 * (95040/10) = 1188 */
#define CHAN_UTIL_PER_USEC 1188
/* Amount of bits to shift the result right to scale the total utilization
* to values that will not wrap around 32-bit integers. */
#define CHAN_UTIL_SHIFT 9
/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
* (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
* raw value with about 23 should give utilization in 10th of a percentage
* (1/1000). However, utilization is only estimated and not all intervals
* between frames etc. are calculated. 18 seems to give numbers that are closer
* to the real maximum. */
#define CHAN_UTIL_PER_10MS 18
#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
/* ieee80211_ioctl.c */
int ieee80211_set_compression(struct ieee80211_local *local,
struct net_device *dev, struct sta_info *sta);
int ieee80211_init_client(struct net_device *dev);
int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
/* ieee80211_sta.c */
void ieee80211_sta_timer(unsigned long data);
void ieee80211_sta_work(struct work_struct *work);
void ieee80211_admit_refresh(unsigned long ptr);
void ieee80211_sta_scan_work(struct work_struct *work);
void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
struct ieee80211_rx_status *rx_status);
int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
void ieee80211_sta_req_auth(struct net_device *dev,
struct ieee80211_if_sta *ifsta);
int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
struct ieee80211_rx_status *rx_status);
void ieee80211_rx_bss_list_init(struct net_device *dev);
void ieee80211_rx_bss_list_deinit(struct net_device *dev);
int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
struct sk_buff *skb, u8 *bssid,
u8 *addr);
int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
void ieee80211_send_addts(struct net_device *dev,
struct ieee80211_if_sta *ifsta,
struct ieee80211_elem_tspec *tspec);
void wmm_send_addts(struct net_device *dev,
struct ieee80211_if_sta *ifsta,
struct ieee80211_elem_tspec *tspec);
void ieee80211_send_delts(struct net_device *dev,
struct ieee80211_if_sta *ifsta,
struct ieee80211_elem_tspec *tp);
void wmm_send_delts(struct net_device *dev,
struct ieee80211_if_sta *ifsta,
struct ieee80211_elem_tspec *tp);
void ieee80211_send_dls_req(struct net_device *dev,
struct ieee80211_if_sta *ifsta,
u8 *addr, u32 timeout);
void ieee80211_send_dls_teardown(struct net_device *dev,
struct ieee80211_if_sta *ifsta,
u8 *mac, u16 reason);
struct sta_info *dls_info_get(struct ieee80211_local *local, u8 *addr);
void dls_info_add(struct ieee80211_if_sta *ifsta, struct sta_info *dls);
void dls_info_stop(struct ieee80211_if_sta *ifsta);
int dls_link_status(struct ieee80211_local *local, u8 *addr);
/* ieee80211_iface.c */
int ieee80211_if_add(struct net_device *dev, const char *name,
struct net_device **new_dev, int type);
void ieee80211_if_set_type(struct net_device *dev, int type);
void ieee80211_if_reinit(struct net_device *dev);
void __ieee80211_if_del(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata);
int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
void ieee80211_if_free(struct net_device *dev);
void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
int ieee80211_if_add_mgmt(struct ieee80211_local *local);
void ieee80211_if_del_mgmt(struct ieee80211_local *local);
/* for wiphy privid */
extern void *mac80211_wiphy_privid;
#endif /* IEEE80211_I_H */

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/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/if_arp.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "sta_info.h"
#include "debugfs_netdev.h"
void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
{
int i;
/* Default values for sub-interface parameters */
sdata->drop_unencrypted = 0;
sdata->eapol = 1;
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
skb_queue_head_init(&sdata->fragments[i].skb_list);
}
static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
{
int i;
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
__skb_queue_purge(&sdata->fragments[i].skb_list);
}
}
/* Must be called with rtnl lock held. */
int ieee80211_if_add(struct net_device *dev, const char *name,
struct net_device **new_dev, int type)
{
struct net_device *ndev;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = NULL;
int ret;
ASSERT_RTNL();
ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
name, ieee80211_if_setup);
if (!ndev)
return -ENOMEM;
ret = dev_alloc_name(ndev, ndev->name);
if (ret < 0)
goto fail;
memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
ndev->base_addr = dev->base_addr;
ndev->irq = dev->irq;
ndev->mem_start = dev->mem_start;
ndev->mem_end = dev->mem_end;
SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
ndev->ieee80211_ptr = &sdata->wdev;
sdata->wdev.wiphy = local->hw.wiphy;
sdata->type = IEEE80211_IF_TYPE_AP;
sdata->dev = ndev;
sdata->local = local;
ieee80211_if_sdata_init(sdata);
ret = register_netdevice(ndev);
if (ret)
goto fail;
ieee80211_debugfs_add_netdev(sdata);
ieee80211_if_set_type(ndev, type);
write_lock_bh(&local->sub_if_lock);
if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
write_unlock_bh(&local->sub_if_lock);
__ieee80211_if_del(local, sdata);
return -ENODEV;
}
list_add(&sdata->list, &local->sub_if_list);
if (new_dev)
*new_dev = ndev;
write_unlock_bh(&local->sub_if_lock);
ieee80211_update_default_wep_only(local);
return 0;
fail:
free_netdev(ndev);
return ret;
}
int ieee80211_if_add_mgmt(struct ieee80211_local *local)
{
struct net_device *ndev;
struct ieee80211_sub_if_data *nsdata;
int ret;
ASSERT_RTNL();
ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data), "wmgmt%d",
ieee80211_if_mgmt_setup);
if (!ndev)
return -ENOMEM;
ret = dev_alloc_name(ndev, ndev->name);
if (ret < 0)
goto fail;
memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
nsdata = IEEE80211_DEV_TO_SUB_IF(ndev);
ndev->ieee80211_ptr = &nsdata->wdev;
nsdata->wdev.wiphy = local->hw.wiphy;
nsdata->type = IEEE80211_IF_TYPE_MGMT;
nsdata->dev = ndev;
nsdata->local = local;
ieee80211_if_sdata_init(nsdata);
ret = register_netdevice(ndev);
if (ret)
goto fail;
ieee80211_debugfs_add_netdev(nsdata);
if (local->open_count > 0)
dev_open(ndev);
local->apdev = ndev;
return 0;
fail:
free_netdev(ndev);
return ret;
}
void ieee80211_if_del_mgmt(struct ieee80211_local *local)
{
struct net_device *apdev;
ASSERT_RTNL();
apdev = local->apdev;
ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(apdev));
local->apdev = NULL;
unregister_netdevice(apdev);
}
void ieee80211_if_set_type(struct net_device *dev, int type)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
int oldtype = sdata->type;
sdata->type = type;
switch (type) {
case IEEE80211_IF_TYPE_WDS:
sdata->bss = NULL;
break;
case IEEE80211_IF_TYPE_VLAN:
break;
case IEEE80211_IF_TYPE_AP:
sdata->u.ap.dtim_period = 2;
sdata->u.ap.force_unicast_rateidx = -1;
sdata->u.ap.max_ratectrl_rateidx = -1;
skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
sdata->bss = &sdata->u.ap;
break;
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS: {
struct ieee80211_sub_if_data *msdata;
struct ieee80211_if_sta *ifsta;
ifsta = &sdata->u.sta;
INIT_WORK(&ifsta->work, ieee80211_sta_work);
setup_timer(&ifsta->timer, ieee80211_sta_timer,
(unsigned long) sdata);
skb_queue_head_init(&ifsta->skb_queue);
init_timer(&ifsta->admit_timer);
ifsta->admit_timer.data = (unsigned long) dev;
ifsta->admit_timer.function = ieee80211_admit_refresh;
ifsta->capab = WLAN_CAPABILITY_ESS;
ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
IEEE80211_AUTH_ALG_SHARED_KEY;
ifsta->create_ibss = 1;
ifsta->wmm_enabled = 1;
ifsta->ht_enabled = 1;
ifsta->auto_channel_sel = 1;
ifsta->auto_bssid_sel = 1;
/* Initialize non-AP QSTA QoS Params */
ifsta->dot11EDCAAveragingPeriod = 5;
ifsta->MPDUExchangeTime = 0;
msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
sdata->bss = &msdata->u.ap;
break;
}
case IEEE80211_IF_TYPE_MNTR:
dev->type = ARPHRD_IEEE80211_RADIOTAP;
break;
default:
printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x",
dev->name, __FUNCTION__, type);
}
ieee80211_debugfs_change_if_type(sdata, oldtype);
ieee80211_update_default_wep_only(local);
}
/* Must be called with rtnl lock held. */
void ieee80211_if_reinit(struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta;
int i;
ASSERT_RTNL();
ieee80211_if_sdata_deinit(sdata);
for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
if (!sdata->keys[i])
continue;
#if 0
/* The interface is down at the moment, so there is not
* really much point in disabling the keys at this point. */
memset(addr, 0xff, ETH_ALEN);
if (local->ops->set_key)
local->ops->set_key(local_to_hw(local), DISABLE_KEY, addr,
local->keys[i], 0);
#endif
ieee80211_key_free(sdata->keys[i]);
sdata->keys[i] = NULL;
}
switch (sdata->type) {
case IEEE80211_IF_TYPE_AP: {
/* Remove all virtual interfaces that use this BSS
* as their sdata->bss */
struct ieee80211_sub_if_data *tsdata, *n;
LIST_HEAD(tmp_list);
write_lock_bh(&local->sub_if_lock);
list_for_each_entry_safe(tsdata, n, &local->sub_if_list, list) {
if (tsdata != sdata && tsdata->bss == &sdata->u.ap) {
printk(KERN_DEBUG "%s: removing virtual "
"interface %s because its BSS interface"
" is being removed\n",
sdata->dev->name, tsdata->dev->name);
list_move_tail(&tsdata->list, &tmp_list);
}
}
write_unlock_bh(&local->sub_if_lock);
list_for_each_entry_safe(tsdata, n, &tmp_list, list)
__ieee80211_if_del(local, tsdata);
kfree(sdata->u.ap.beacon_head);
kfree(sdata->u.ap.beacon_tail);
kfree(sdata->u.ap.generic_elem);
if (dev != local->mdev) {
struct sk_buff *skb;
while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
local->total_ps_buffered--;
dev_kfree_skb(skb);
}
}
break;
}
case IEEE80211_IF_TYPE_WDS:
sta = sta_info_get(local, sdata->u.wds.remote_addr);
if (sta) {
sta_info_put(sta);
sta_info_free(sta, 0);
} else {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Someone had deleted my STA "
"entry for the WDS link\n", dev->name);
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
}
break;
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
kfree(sdata->u.sta.extra_ie);
sdata->u.sta.extra_ie = NULL;
kfree(sdata->u.sta.assocreq_ies);
sdata->u.sta.assocreq_ies = NULL;
kfree(sdata->u.sta.assocresp_ies);
sdata->u.sta.assocresp_ies = NULL;
if (sdata->u.sta.probe_resp) {
dev_kfree_skb(sdata->u.sta.probe_resp);
sdata->u.sta.probe_resp = NULL;
}
break;
case IEEE80211_IF_TYPE_MNTR:
dev->type = ARPHRD_ETHER;
break;
}
/* remove all STAs that are bound to this virtual interface */
sta_info_flush(local, dev);
memset(&sdata->u, 0, sizeof(sdata->u));
ieee80211_if_sdata_init(sdata);
}
/* Must be called with rtnl lock held. */
void __ieee80211_if_del(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
struct net_device *dev = sdata->dev;
ieee80211_debugfs_remove_netdev(sdata);
unregister_netdevice(dev);
/* Except master interface, the net_device will be freed by
* net_device->destructor (i. e. ieee80211_if_free). */
}
/* Must be called with rtnl lock held. */
int ieee80211_if_remove(struct net_device *dev, const char *name, int id)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata, *n;
ASSERT_RTNL();
write_lock_bh(&local->sub_if_lock);
list_for_each_entry_safe(sdata, n, &local->sub_if_list, list) {
if ((sdata->type == id || id == -1) &&
strcmp(name, sdata->dev->name) == 0 &&
sdata->dev != local->mdev) {
list_del(&sdata->list);
write_unlock_bh(&local->sub_if_lock);
__ieee80211_if_del(local, sdata);
ieee80211_update_default_wep_only(local);
return 0;
}
}
write_unlock_bh(&local->sub_if_lock);
return -ENODEV;
}
void ieee80211_if_free(struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
/* local->apdev must be NULL when freeing management interface */
BUG_ON(dev == local->apdev);
ieee80211_if_sdata_deinit(sdata);
free_netdev(dev);
}

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package/mac80211/src/mac80211/ieee80211_key.h Normal file
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/*
* Copyright 2002-2004, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef IEEE80211_KEY_H
#define IEEE80211_KEY_H
#include <linux/types.h>
#include <linux/kref.h>
#include <linux/crypto.h>
#include <net/mac80211.h>
/* ALG_TKIP
* struct ieee80211_key::key is encoded as a 256-bit (32 byte) data block:
* Temporal Encryption Key (128 bits)
* Temporal Authenticator Tx MIC Key (64 bits)
* Temporal Authenticator Rx MIC Key (64 bits)
*/
#define WEP_IV_LEN 4
#define WEP_ICV_LEN 4
#define ALG_TKIP_KEY_LEN 32
/* Starting offsets for each key */
#define ALG_TKIP_TEMP_ENCR_KEY 0
#define ALG_TKIP_TEMP_AUTH_TX_MIC_KEY 16
#define ALG_TKIP_TEMP_AUTH_RX_MIC_KEY 24
#define TKIP_IV_LEN 8
#define TKIP_ICV_LEN 4
#define ALG_CCMP_KEY_LEN 16
#define CCMP_HDR_LEN 8
#define CCMP_MIC_LEN 8
#define CCMP_TK_LEN 16
#define CCMP_PN_LEN 6
#define NUM_RX_DATA_QUEUES 17
struct ieee80211_key {
struct kref kref;
int hw_key_idx; /* filled and used by low-level driver */
ieee80211_key_alg alg;
union {
struct {
/* last used TSC */
u32 iv32;
u16 iv16;
u16 p1k[5];
int tx_initialized;
/* last received RSC */
u32 iv32_rx[NUM_RX_DATA_QUEUES];
u16 iv16_rx[NUM_RX_DATA_QUEUES];
u16 p1k_rx[NUM_RX_DATA_QUEUES][5];
int rx_initialized[NUM_RX_DATA_QUEUES];
} tkip;
struct {
u8 tx_pn[6];
u8 rx_pn[NUM_RX_DATA_QUEUES][6];
struct crypto_cipher *tfm;
u32 replays; /* dot11RSNAStatsCCMPReplays */
/* scratch buffers for virt_to_page() (crypto API) */
#ifndef AES_BLOCK_LEN
#define AES_BLOCK_LEN 16
#endif
u8 tx_crypto_buf[6 * AES_BLOCK_LEN];
u8 rx_crypto_buf[6 * AES_BLOCK_LEN];
} ccmp;
} u;
int tx_rx_count; /* number of times this key has been used */
int keylen;
/* if the low level driver can provide hardware acceleration it should
* clear this flag */
unsigned int force_sw_encrypt:1;
unsigned int default_tx_key:1; /* This key is the new default TX key
* (used only for broadcast keys). */
s8 keyidx; /* WEP key index */
#ifdef CONFIG_MAC80211_DEBUGFS
struct {
struct dentry *stalink;
struct dentry *dir;
struct dentry *keylen;
struct dentry *force_sw_encrypt;
struct dentry *keyidx;
struct dentry *hw_key_idx;
struct dentry *tx_rx_count;
struct dentry *algorithm;
struct dentry *tx_spec;
struct dentry *rx_spec;
struct dentry *replays;
struct dentry *key;
} debugfs;
#endif
u8 key[0];
};
#endif /* IEEE80211_KEY_H */

91
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/*
* Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/* just for IFNAMSIZ */
#include <linux/if.h>
#include "ieee80211_led.h"
void ieee80211_led_rx(struct ieee80211_local *local)
{
if (unlikely(!local->rx_led))
return;
if (local->rx_led_counter++ % 2 == 0)
led_trigger_event(local->rx_led, LED_OFF);
else
led_trigger_event(local->rx_led, LED_FULL);
}
/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
void ieee80211_led_tx(struct ieee80211_local *local, int q)
{
if (unlikely(!local->tx_led))
return;
/* not sure how this is supposed to work ... */
local->tx_led_counter += 2*q-1;
if (local->tx_led_counter % 2 == 0)
led_trigger_event(local->tx_led, LED_OFF);
else
led_trigger_event(local->tx_led, LED_FULL);
}
void ieee80211_led_init(struct ieee80211_local *local)
{
local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
if (!local->rx_led)
return;
snprintf(local->rx_led_name, sizeof(local->rx_led_name),
"%srx", wiphy_name(local->hw.wiphy));
local->rx_led->name = local->rx_led_name;
if (led_trigger_register(local->rx_led)) {
kfree(local->rx_led);
local->rx_led = NULL;
}
local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
if (!local->tx_led)
return;
snprintf(local->tx_led_name, sizeof(local->tx_led_name),
"%stx", wiphy_name(local->hw.wiphy));
local->tx_led->name = local->tx_led_name;
if (led_trigger_register(local->tx_led)) {
kfree(local->tx_led);
local->tx_led = NULL;
}
}
void ieee80211_led_exit(struct ieee80211_local *local)
{
if (local->tx_led) {
led_trigger_unregister(local->tx_led);
kfree(local->tx_led);
}
if (local->rx_led) {
led_trigger_unregister(local->rx_led);
kfree(local->rx_led);
}
}
char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
if (local->tx_led)
return local->tx_led_name;
return NULL;
}
EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
if (local->rx_led)
return local->rx_led_name;
return NULL;
}
EXPORT_SYMBOL(__ieee80211_get_rx_led_name);

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/*
* Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/leds.h>
#include "ieee80211_i.h"
#ifdef CONFIG_MAC80211_LEDS
extern void ieee80211_led_rx(struct ieee80211_local *local);
extern void ieee80211_led_tx(struct ieee80211_local *local, int q);
extern void ieee80211_led_init(struct ieee80211_local *local);
extern void ieee80211_led_exit(struct ieee80211_local *local);
#else
static inline void ieee80211_led_rx(struct ieee80211_local *local)
{
}
static inline void ieee80211_led_tx(struct ieee80211_local *local, int q)
{
}
static inline void ieee80211_led_init(struct ieee80211_local *local)
{
}
static inline void ieee80211_led_exit(struct ieee80211_local *local)
{
}
#endif

140
package/mac80211/src/mac80211/ieee80211_rate.c Normal file
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/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include "ieee80211_rate.h"
#include "ieee80211_i.h"
struct rate_control_alg {
struct list_head list;
struct rate_control_ops *ops;
};
static LIST_HEAD(rate_ctrl_algs);
static DEFINE_MUTEX(rate_ctrl_mutex);
int ieee80211_rate_control_register(struct rate_control_ops *ops)
{
struct rate_control_alg *alg;
alg = kmalloc(sizeof(*alg), GFP_KERNEL);
if (alg == NULL) {
return -ENOMEM;
}
memset(alg, 0, sizeof(*alg));
alg->ops = ops;
mutex_lock(&rate_ctrl_mutex);
list_add_tail(&alg->list, &rate_ctrl_algs);
mutex_unlock(&rate_ctrl_mutex);
return 0;
}
EXPORT_SYMBOL(ieee80211_rate_control_register);
void ieee80211_rate_control_unregister(struct rate_control_ops *ops)
{
struct rate_control_alg *alg;
mutex_lock(&rate_ctrl_mutex);
list_for_each_entry(alg, &rate_ctrl_algs, list) {
if (alg->ops == ops) {
list_del(&alg->list);
break;
}
}
mutex_unlock(&rate_ctrl_mutex);
kfree(alg);
}
EXPORT_SYMBOL(ieee80211_rate_control_unregister);
static struct rate_control_ops *
ieee80211_try_rate_control_ops_get(const char *name)
{
struct rate_control_alg *alg;
struct rate_control_ops *ops = NULL;
mutex_lock(&rate_ctrl_mutex);
list_for_each_entry(alg, &rate_ctrl_algs, list) {
if (!name || !strcmp(alg->ops->name, name))
if (try_module_get(alg->ops->module)) {
ops = alg->ops;
break;
}
}
mutex_unlock(&rate_ctrl_mutex);
return ops;
}
/* Get the rate control algorithm. If `name' is NULL, get the first
* available algorithm. */
static struct rate_control_ops *
ieee80211_rate_control_ops_get(const char *name)
{
struct rate_control_ops *ops;
ops = ieee80211_try_rate_control_ops_get(name);
if (!ops) {
request_module("rc80211_%s", name ? name : "default");
ops = ieee80211_try_rate_control_ops_get(name);
}
return ops;
}
static void ieee80211_rate_control_ops_put(struct rate_control_ops *ops)
{
module_put(ops->module);
}
struct rate_control_ref *rate_control_alloc(const char *name,
struct ieee80211_local *local)
{
struct rate_control_ref *ref;
ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL);
if (!ref)
goto fail_ref;
kref_init(&ref->kref);
ref->ops = ieee80211_rate_control_ops_get(name);
if (!ref->ops)
goto fail_ops;
ref->priv = ref->ops->alloc(local);
if (!ref->priv)
goto fail_priv;
return ref;
fail_priv:
ieee80211_rate_control_ops_put(ref->ops);
fail_ops:
kfree(ref);
fail_ref:
return NULL;
}
static void rate_control_release(struct kref *kref)
{
struct rate_control_ref *ctrl_ref;
ctrl_ref = container_of(kref, struct rate_control_ref, kref);
ctrl_ref->ops->free(ctrl_ref->priv);
ieee80211_rate_control_ops_put(ctrl_ref->ops);
kfree(ctrl_ref);
}
struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
{
kref_get(&ref->kref);
return ref;
}
void rate_control_put(struct rate_control_ref *ref)
{
kref_put(&ref->kref, rate_control_release);
}

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/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef IEEE80211_RATE_H
#define IEEE80211_RATE_H
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/types.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "sta_info.h"
#define RATE_CONTROL_NUM_DOWN 20
#define RATE_CONTROL_NUM_UP 15
struct rate_control_extra {
/* values from rate_control_get_rate() to the caller: */
struct ieee80211_rate *probe; /* probe with this rate, or NULL for no
* probing */
struct ieee80211_rate *nonerp;
/* parameters from the caller to rate_control_get_rate(): */
struct ieee80211_hw_mode *mode;
int mgmt_data; /* this is data frame that is used for management
* (e.g., IEEE 802.1X EAPOL) */
u16 ethertype;
};
struct rate_control_ops {
struct module *module;
const char *name;
void (*tx_status)(void *priv, struct net_device *dev,
struct sk_buff *skb,
struct ieee80211_tx_status *status);
struct ieee80211_rate *(*get_rate)(void *priv, struct net_device *dev,
struct sk_buff *skb,
struct rate_control_extra *extra);
void (*rate_init)(void *priv, void *priv_sta,
struct ieee80211_local *local, struct sta_info *sta);
void (*clear)(void *priv);
void *(*alloc)(struct ieee80211_local *local);
void (*free)(void *priv);
void *(*alloc_sta)(void *priv, gfp_t gfp);
void (*free_sta)(void *priv, void *priv_sta);
int (*add_attrs)(void *priv, struct kobject *kobj);
void (*remove_attrs)(void *priv, struct kobject *kobj);
void (*add_sta_debugfs)(void *priv, void *priv_sta,
struct dentry *dir);
void (*remove_sta_debugfs)(void *priv, void *priv_sta);
};
struct rate_control_ref {
struct rate_control_ops *ops;
void *priv;
struct kref kref;
};
int ieee80211_rate_control_register(struct rate_control_ops *ops);
void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
/* Get a reference to the rate control algorithm. If `name' is NULL, get the
* first available algorithm. */
struct rate_control_ref *rate_control_alloc(const char *name,
struct ieee80211_local *local);
struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
void rate_control_put(struct rate_control_ref *ref);
static inline void rate_control_tx_status(struct ieee80211_local *local,
struct net_device *dev,
struct sk_buff *skb,
struct ieee80211_tx_status *status)
{
struct rate_control_ref *ref = local->rate_ctrl;
ref->ops->tx_status(ref->priv, dev, skb, status);
}
static inline struct ieee80211_rate *
rate_control_get_rate(struct ieee80211_local *local, struct net_device *dev,
struct sk_buff *skb, struct rate_control_extra *extra)
{
struct rate_control_ref *ref = local->rate_ctrl;
return ref->ops->get_rate(ref->priv, dev, skb, extra);
}
static inline void rate_control_rate_init(struct sta_info *sta,
struct ieee80211_local *local)
{
struct rate_control_ref *ref = sta->rate_ctrl;
ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta);
}
static inline void rate_control_clear(struct ieee80211_local *local)
{
struct rate_control_ref *ref = local->rate_ctrl;
ref->ops->clear(ref->priv);
}
static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
gfp_t gfp)
{
return ref->ops->alloc_sta(ref->priv, gfp);
}
static inline void rate_control_free_sta(struct rate_control_ref *ref,
void *priv)
{
ref->ops->free_sta(ref->priv, priv);
}
static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
{
#ifdef CONFIG_MAC80211_DEBUGFS
struct rate_control_ref *ref = sta->rate_ctrl;
if (sta->debugfs.dir && ref->ops->add_sta_debugfs)
ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
sta->debugfs.dir);
#endif
}
static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
{
#ifdef CONFIG_MAC80211_DEBUGFS
struct rate_control_ref *ref = sta->rate_ctrl;
if (ref->ops->remove_sta_debugfs)
ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
#endif
}
#endif /* IEEE80211_RATE_H */

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/*
* Michael MIC implementation - optimized for TKIP MIC operations
* Copyright 2002-2003, Instant802 Networks, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/types.h>
#include "michael.h"
static inline u32 rotr(u32 val, int bits)
{
return (val >> bits) | (val << (32 - bits));
}
static inline u32 rotl(u32 val, int bits)
{
return (val << bits) | (val >> (32 - bits));
}
static inline u32 xswap(u32 val)
{
return ((val & 0xff00ff00) >> 8) | ((val & 0x00ff00ff) << 8);
}
#define michael_block(l, r) \
do { \
r ^= rotl(l, 17); \
l += r; \
r ^= xswap(l); \
l += r; \
r ^= rotl(l, 3); \
l += r; \
r ^= rotr(l, 2); \
l += r; \
} while (0)
static inline u32 michael_get32(u8 *data)
{
return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
}
static inline void michael_put32(u32 val, u8 *data)
{
data[0] = val & 0xff;
data[1] = (val >> 8) & 0xff;
data[2] = (val >> 16) & 0xff;
data[3] = (val >> 24) & 0xff;
}
void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
u8 *data, size_t data_len, u8 *mic)
{
u32 l, r, val;
size_t block, blocks, left;
l = michael_get32(key);
r = michael_get32(key + 4);
/* A pseudo header (DA, SA, Priority, 0, 0, 0) is used in Michael MIC
* calculation, but it is _not_ transmitted */
l ^= michael_get32(da);
michael_block(l, r);
l ^= da[4] | (da[5] << 8) | (sa[0] << 16) | (sa[1] << 24);
michael_block(l, r);
l ^= michael_get32(&sa[2]);
michael_block(l, r);
l ^= priority;
michael_block(l, r);
/* Real data */
blocks = data_len / 4;
left = data_len % 4;
for (block = 0; block < blocks; block++) {
l ^= michael_get32(&data[block * 4]);
michael_block(l, r);
}
/* Partial block of 0..3 bytes and padding: 0x5a + 4..7 zeros to make
* total length a multiple of 4. */
val = 0x5a;
while (left > 0) {
val <<= 8;
left--;
val |= data[blocks * 4 + left];
}
l ^= val;
michael_block(l, r);
/* last block is zero, so l ^ 0 = l */
michael_block(l, r);
michael_put32(l, mic);
michael_put32(r, mic + 4);
}

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/*
* Michael MIC implementation - optimized for TKIP MIC operations
* Copyright 2002-2003, Instant802 Networks, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef MICHAEL_H
#define MICHAEL_H
#include <linux/types.h>
#define MICHAEL_MIC_LEN 8
void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
u8 *data, size_t data_len, u8 *mic);
#endif /* MICHAEL_H */

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package/mac80211/src/mac80211/rc80211_lowest.c Normal file
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/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
* Copyright (c) 2006-2007 Jiri Benc <jbenc@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/compiler.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "debugfs.h"
static void rate_control_lowest_tx_status(void *priv, struct net_device *dev,
struct sk_buff *skb,
struct ieee80211_tx_status *status)
{
}
static struct ieee80211_rate *
rate_control_lowest_get_rate(void *priv, struct net_device *dev,
struct sk_buff *skb,
struct rate_control_extra *extra)
{
struct ieee80211_hw_mode *mode = extra->mode;
int i;
for (i = 0; i < mode->num_rates; i++) {
struct ieee80211_rate *rate = &mode->rates[i];
if (rate->flags & IEEE80211_RATE_SUPPORTED)
return rate;
}
return &mode->rates[0];
}
static void rate_control_lowest_rate_init(void *priv, void *priv_sta,
struct ieee80211_local *local,
struct sta_info *sta)
{
sta->txrate = 0;
}
static void *rate_control_lowest_alloc(struct ieee80211_local *local)
{
return local;
}
static void rate_control_lowest_free(void *priv)
{
}
static void rate_control_lowest_clear(void *priv)
{
}
static void *rate_control_lowest_alloc_sta(void *priv, gfp_t gfp)
{
return priv;
}
static void rate_control_lowest_free_sta(void *priv, void *priv_sta)
{
}
static struct rate_control_ops rate_control_lowest = {
.module = THIS_MODULE,
.name = "lowest",
.tx_status = rate_control_lowest_tx_status,
.get_rate = rate_control_lowest_get_rate,
.rate_init = rate_control_lowest_rate_init,
.clear = rate_control_lowest_clear,
.alloc = rate_control_lowest_alloc,
.free = rate_control_lowest_free,
.alloc_sta = rate_control_lowest_alloc_sta,
.free_sta = rate_control_lowest_free_sta,
};
static int __init rate_control_lowest_init(void)
{
return ieee80211_rate_control_register(&rate_control_lowest);
}
static void __exit rate_control_lowest_exit(void)
{
ieee80211_rate_control_unregister(&rate_control_lowest);
}
module_init(rate_control_lowest_init);
module_exit(rate_control_lowest_exit);
MODULE_DESCRIPTION("Forced 1 mbps rate control module for mac80211");
MODULE_LICENSE("GPL");

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/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/compiler.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "debugfs.h"
/* This is a minimal implementation of TX rate controlling that can be used
* as the default when no improved mechanisms are available. */
#define RATE_CONTROL_EMERG_DEC 2
#define RATE_CONTROL_INTERVAL (HZ / 20)
#define RATE_CONTROL_MIN_TX 10
MODULE_ALIAS("rc80211_default");
static void rate_control_rate_inc(struct ieee80211_local *local,
struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hw_mode *mode;
int i = sta->txrate;
int maxrate;
sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
/* forced unicast rate - do not change STA rate */
return;
}
mode = local->oper_hw_mode;
maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
if (i > mode->num_rates)
i = mode->num_rates - 2;
while (i + 1 < mode->num_rates) {
i++;
if (sta->supp_rates & BIT(i) &&
mode->rates[i].flags & IEEE80211_RATE_SUPPORTED &&
(maxrate < 0 || i <= maxrate)) {
sta->txrate = i;
break;
}
}
}
static void rate_control_rate_dec(struct ieee80211_local *local,
struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hw_mode *mode;
int i = sta->txrate;
sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
/* forced unicast rate - do not change STA rate */
return;
}
mode = local->oper_hw_mode;
if (i > mode->num_rates)
i = mode->num_rates;
while (i > 0) {
i--;
if (sta->supp_rates & BIT(i) &&
mode->rates[i].flags & IEEE80211_RATE_SUPPORTED) {
sta->txrate = i;
break;
}
}
}
static struct ieee80211_rate *
rate_control_lowest_rate(struct ieee80211_local *local,
struct ieee80211_hw_mode *mode)
{
int i;
for (i = 0; i < mode->num_rates; i++) {
struct ieee80211_rate *rate = &mode->rates[i];
if (rate->flags & IEEE80211_RATE_SUPPORTED)
return rate;
}
printk(KERN_DEBUG "rate_control_lowest_rate - no supported rates "
"found\n");
return &mode->rates[0];
}
struct global_rate_control {
int dummy;
};
struct sta_rate_control {
unsigned long last_rate_change;
u32 tx_num_failures;
u32 tx_num_xmit;
unsigned long avg_rate_update;
u32 tx_avg_rate_sum;
u32 tx_avg_rate_num;
#ifdef CONFIG_MAC80211_DEBUGFS
struct dentry *tx_avg_rate_sum_dentry;
struct dentry *tx_avg_rate_num_dentry;
#endif
};
static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
struct sk_buff *skb,
struct ieee80211_tx_status *status)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct sta_info *sta;
struct sta_rate_control *srctrl;
sta = sta_info_get(local, hdr->addr1);
if (!sta)
return;
srctrl = sta->rate_ctrl_priv;
srctrl->tx_num_xmit++;
if (status->excessive_retries) {
sta->antenna_sel_tx = sta->antenna_sel_tx == 1 ? 2 : 1;
sta->antenna_sel_rx = sta->antenna_sel_rx == 1 ? 2 : 1;
if (local->sta_antenna_sel == STA_ANTENNA_SEL_SW_CTRL_DEBUG) {
printk(KERN_DEBUG "%s: " MAC_FMT " TX antenna --> %d "
"RX antenna --> %d (@%lu)\n",
dev->name, MAC_ARG(hdr->addr1),
sta->antenna_sel_tx, sta->antenna_sel_rx, jiffies);
}
srctrl->tx_num_failures++;
sta->tx_retry_failed++;
sta->tx_num_consecutive_failures++;
sta->tx_num_mpdu_fail++;
} else {
sta->last_ack_rssi[0] = sta->last_ack_rssi[1];
sta->last_ack_rssi[1] = sta->last_ack_rssi[2];
sta->last_ack_rssi[2] = status->ack_signal;
sta->tx_num_consecutive_failures = 0;
sta->tx_num_mpdu_ok++;
}
sta->tx_retry_count += status->retry_count;
sta->tx_num_mpdu_fail += status->retry_count;
if (time_after(jiffies,
srctrl->last_rate_change + RATE_CONTROL_INTERVAL) &&
srctrl->tx_num_xmit > RATE_CONTROL_MIN_TX) {
u32 per_failed;
srctrl->last_rate_change = jiffies;
per_failed = (100 * sta->tx_num_mpdu_fail) /
(sta->tx_num_mpdu_fail + sta->tx_num_mpdu_ok);
/* TODO: calculate average per_failed to make adjusting
* parameters easier */
#if 0
if (net_ratelimit()) {
printk(KERN_DEBUG "MPDU fail=%d ok=%d per_failed=%d\n",
sta->tx_num_mpdu_fail, sta->tx_num_mpdu_ok,
per_failed);
}
#endif
if (per_failed > local->rate_ctrl_num_down) {
rate_control_rate_dec(local, sta);
} else if (per_failed < local->rate_ctrl_num_up) {
rate_control_rate_inc(local, sta);
}
srctrl->tx_avg_rate_sum += status->control.rate->rate;
srctrl->tx_avg_rate_num++;
srctrl->tx_num_failures = 0;
srctrl->tx_num_xmit = 0;
} else if (sta->tx_num_consecutive_failures >=
RATE_CONTROL_EMERG_DEC) {
rate_control_rate_dec(local, sta);
}
if (srctrl->avg_rate_update + 60 * HZ < jiffies) {
srctrl->avg_rate_update = jiffies;
if (srctrl->tx_avg_rate_num > 0) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: STA " MAC_FMT " Average rate: "
"%d (%d/%d)\n",
dev->name, MAC_ARG(sta->addr),
srctrl->tx_avg_rate_sum /
srctrl->tx_avg_rate_num,
srctrl->tx_avg_rate_sum,
srctrl->tx_avg_rate_num);
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
srctrl->tx_avg_rate_sum = 0;
srctrl->tx_avg_rate_num = 0;
}
}
sta_info_put(sta);
}
static struct ieee80211_rate *
rate_control_simple_get_rate(void *priv, struct net_device *dev,
struct sk_buff *skb,
struct rate_control_extra *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_hw_mode *mode = extra->mode;
struct sta_info *sta;
int rateidx, nonerp_idx;
u16 fc;
memset(extra, 0, sizeof(*extra));
fc = le16_to_cpu(hdr->frame_control);
if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
(hdr->addr1[0] & 0x01)) {
/* Send management frames and broadcast/multicast data using
* lowest rate. */
/* TODO: this could probably be improved.. */
return rate_control_lowest_rate(local, mode);
}
sta = sta_info_get(local, hdr->addr1);
if (!sta)
return rate_control_lowest_rate(local, mode);
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
sta->txrate = sdata->bss->force_unicast_rateidx;
rateidx = sta->txrate;
if (rateidx >= mode->num_rates)
rateidx = mode->num_rates - 1;
sta->last_txrate = rateidx;
nonerp_idx = rateidx;
while (nonerp_idx > 0 &&
((mode->rates[nonerp_idx].flags & IEEE80211_RATE_ERP) ||
!(mode->rates[nonerp_idx].flags & IEEE80211_RATE_SUPPORTED) ||
!(sta->supp_rates & BIT(nonerp_idx))))
nonerp_idx--;
extra->nonerp = &mode->rates[nonerp_idx];
sta_info_put(sta);
return &mode->rates[rateidx];
}
static void rate_control_simple_rate_init(void *priv, void *priv_sta,
struct ieee80211_local *local,
struct sta_info *sta)
{
struct ieee80211_hw_mode *mode;
int i;
sta->txrate = 0;
mode = local->oper_hw_mode;
/* TODO: This routine should consider using RSSI from previous packets
* as we need to have IEEE 802.1X auth succeed immediately after assoc..
* Until that method is implemented, we will use the lowest supported rate
* as a workaround, */
for (i = 0; i < mode->num_rates; i++) {
if ((sta->supp_rates & BIT(i)) &&
(mode->rates[i].flags & IEEE80211_RATE_SUPPORTED))
sta->txrate = i;
break;
}
}
static void * rate_control_simple_alloc(struct ieee80211_local *local)
{
struct global_rate_control *rctrl;
rctrl = kzalloc(sizeof(*rctrl), GFP_ATOMIC);
return rctrl;
}
static void rate_control_simple_free(void *priv)
{
struct global_rate_control *rctrl = priv;
kfree(rctrl);
}
static void rate_control_simple_clear(void *priv)
{
}
static void * rate_control_simple_alloc_sta(void *priv, gfp_t gfp)
{
struct sta_rate_control *rctrl;
rctrl = kzalloc(sizeof(*rctrl), gfp);
return rctrl;
}
static void rate_control_simple_free_sta(void *priv, void *priv_sta)
{
struct sta_rate_control *rctrl = priv_sta;
kfree(rctrl);
}
#ifdef CONFIG_MAC80211_DEBUGFS
static int open_file_generic(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static ssize_t sta_tx_avg_rate_sum_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
{
struct sta_rate_control *srctrl = file->private_data;
char buf[20];
sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum);
return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
}
static const struct file_operations sta_tx_avg_rate_sum_ops = {
.read = sta_tx_avg_rate_sum_read,
.open = open_file_generic,
};
static ssize_t sta_tx_avg_rate_num_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
{
struct sta_rate_control *srctrl = file->private_data;
char buf[20];
sprintf(buf, "%d\n", srctrl->tx_avg_rate_num);
return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
}
static const struct file_operations sta_tx_avg_rate_num_ops = {
.read = sta_tx_avg_rate_num_read,
.open = open_file_generic,
};
static void rate_control_simple_add_sta_debugfs(void *priv, void *priv_sta,
struct dentry *dir)
{
struct sta_rate_control *srctrl = priv_sta;
srctrl->tx_avg_rate_num_dentry =
debugfs_create_file("rc_simple_sta_tx_avg_rate_num", 0400,
dir, srctrl, &sta_tx_avg_rate_num_ops);
srctrl->tx_avg_rate_sum_dentry =
debugfs_create_file("rc_simple_sta_tx_avg_rate_sum", 0400,
dir, srctrl, &sta_tx_avg_rate_sum_ops);
}
static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
{
struct sta_rate_control *srctrl = priv_sta;
debugfs_remove(srctrl->tx_avg_rate_sum_dentry);
debugfs_remove(srctrl->tx_avg_rate_num_dentry);
}
#endif
static struct rate_control_ops rate_control_simple = {
.module = THIS_MODULE,
.name = "simple",
.tx_status = rate_control_simple_tx_status,
.get_rate = rate_control_simple_get_rate,
.rate_init = rate_control_simple_rate_init,
.clear = rate_control_simple_clear,
.alloc = rate_control_simple_alloc,
.free = rate_control_simple_free,
.alloc_sta = rate_control_simple_alloc_sta,
.free_sta = rate_control_simple_free_sta,
#ifdef CONFIG_MAC80211_DEBUGFS
.add_sta_debugfs = rate_control_simple_add_sta_debugfs,
.remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
#endif
};
static int __init rate_control_simple_init(void)
{
return ieee80211_rate_control_register(&rate_control_simple);
}
static void __exit rate_control_simple_exit(void)
{
ieee80211_rate_control_unregister(&rate_control_simple);
}
module_init(rate_control_simple_init);
module_exit(rate_control_simple_exit);
MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
MODULE_LICENSE("GPL");

496
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/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "sta_info.h"
#include "debugfs_key.h"
#include "debugfs_sta.h"
/* Caller must hold local->sta_lock */
static void sta_info_hash_add(struct ieee80211_local *local,
struct sta_info *sta)
{
sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
local->sta_hash[STA_HASH(sta->addr)] = sta;
}
/* Caller must hold local->sta_lock */
static void sta_info_hash_del(struct ieee80211_local *local,
struct sta_info *sta, int dls)
{
struct sta_info *s;
s = local->sta_hash[STA_HASH(sta->addr)];
if (!s)
return;
if (memcmp(s->addr, sta->addr, ETH_ALEN) == 0) {
if (dls && !s->dls_sta)
return;
local->sta_hash[STA_HASH(sta->addr)] = s->hnext;
return;
}
while (s->hnext && memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
s = s->hnext;
if (s->hnext) {
if (dls && !s->hnext->dls_sta)
return;
s->hnext = s->hnext->hnext;
} else
printk(KERN_ERR "%s: could not remove STA " MAC_FMT " from "
"hash table\n", local->mdev->name, MAC_ARG(sta->addr));
}
static inline void __sta_info_get(struct sta_info *sta)
{
kref_get(&sta->kref);
}
struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
{
struct sta_info *sta;
spin_lock_bh(&local->sta_lock);
sta = local->sta_hash[STA_HASH(addr)];
while (sta) {
if (memcmp(sta->addr, addr, ETH_ALEN) == 0) {
__sta_info_get(sta);
break;
}
sta = sta->hnext;
}
spin_unlock_bh(&local->sta_lock);
return sta;
}
EXPORT_SYMBOL(sta_info_get);
struct sta_info *dls_info_get(struct ieee80211_local *local, u8 *addr)
{
struct sta_info *sta;
spin_lock_bh(&local->sta_lock);
sta = local->sta_hash[STA_HASH(addr)];
while (sta) {
if (memcmp(sta->addr, addr, ETH_ALEN) == 0) {
if (!sta->dls_sta) {
sta = NULL;
break;
}
__sta_info_get(sta);
break;
}
sta = sta->hnext;
}
spin_unlock_bh(&local->sta_lock);
return sta;
}
int sta_info_min_txrate_get(struct ieee80211_local *local)
{
struct sta_info *sta;
struct ieee80211_hw_mode *mode;
int min_txrate = 9999999;
int i;
spin_lock_bh(&local->sta_lock);
mode = local->oper_hw_mode;
for (i = 0; i < STA_HASH_SIZE; i++) {
sta = local->sta_hash[i];
while (sta) {
if (sta->txrate < min_txrate)
min_txrate = sta->txrate;
sta = sta->hnext;
}
}
spin_unlock_bh(&local->sta_lock);
if (min_txrate == 9999999)
min_txrate = 0;
return mode->rates[min_txrate].rate;
}
static void sta_info_release(struct kref *kref)
{
struct sta_info *sta = container_of(kref, struct sta_info, kref);
struct ieee80211_local *local = sta->local;
struct sk_buff *skb;
/* free sta structure; it has already been removed from
* hash table etc. external structures. Make sure that all
* buffered frames are release (one might have been added
* after sta_info_free() was called). */
while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
local->total_ps_buffered--;
dev_kfree_skb_any(skb);
}
while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
dev_kfree_skb_any(skb);
}
rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
rate_control_put(sta->rate_ctrl);
if (sta->key)
ieee80211_debugfs_key_sta_del(sta->key, sta);
kfree(sta);
}
void sta_info_put(struct sta_info *sta)
{
kref_put(&sta->kref, sta_info_release);
}
EXPORT_SYMBOL(sta_info_put);
struct sta_info * sta_info_add(struct ieee80211_local *local,
struct net_device *dev, u8 *addr, gfp_t gfp)
{
struct sta_info *sta;
sta = kzalloc(sizeof(*sta), gfp);
if (!sta)
return NULL;
kref_init(&sta->kref);
sta->rate_ctrl = rate_control_get(local->rate_ctrl);
sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl, gfp);
if (!sta->rate_ctrl_priv) {
rate_control_put(sta->rate_ctrl);
kref_put(&sta->kref, sta_info_release);
kfree(sta);
return NULL;
}
memcpy(sta->addr, addr, ETH_ALEN);
sta->local = local;
sta->dev = dev;
skb_queue_head_init(&sta->ps_tx_buf);
skb_queue_head_init(&sta->tx_filtered);
__sta_info_get(sta); /* sta used by caller, decremented by
* sta_info_put() */
spin_lock_bh(&local->sta_lock);
list_add(&sta->list, &local->sta_list);
local->num_sta++;
sta_info_hash_add(local, sta);
spin_unlock_bh(&local->sta_lock);
if (local->ops->sta_table_notification)
local->ops->sta_table_notification(local_to_hw(local),
local->num_sta);
sta->key_idx_compression = HW_KEY_IDX_INVALID;
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Added STA " MAC_FMT "\n",
local->mdev->name, MAC_ARG(addr));
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
#ifdef CONFIG_MAC80211_DEBUGFS
if (!in_interrupt()) {
sta->debugfs_registered = 1;
ieee80211_sta_debugfs_add(sta);
rate_control_add_sta_debugfs(sta);
} else {
/* debugfs entry adding might sleep, so schedule process
* context task for adding entry for STAs that do not yet
* have one. */
queue_work(local->hw.workqueue, &local->sta_debugfs_add);
}
#endif
return sta;
}
static void finish_sta_info_free(struct ieee80211_local *local,
struct sta_info *sta)
{
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Removed STA " MAC_FMT "\n",
local->mdev->name, MAC_ARG(sta->addr));
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
if (sta->key) {
ieee80211_debugfs_key_remove(sta->key);
ieee80211_key_free(sta->key);
sta->key = NULL;
}
rate_control_remove_sta_debugfs(sta);
ieee80211_sta_debugfs_remove(sta);
sta_info_put(sta);
}
static void sta_info_remove(struct sta_info *sta)
{
struct ieee80211_local *local = sta->local;
struct ieee80211_sub_if_data *sdata;
sta_info_hash_del(local, sta, 0);
list_del(&sta->list);
sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
if (sta->flags & WLAN_STA_PS) {
sta->flags &= ~WLAN_STA_PS;
if (sdata->bss)
atomic_dec(&sdata->bss->num_sta_ps);
}
local->num_sta--;
sta_info_remove_aid_ptr(sta);
}
void sta_info_free(struct sta_info *sta, int locked)
{
struct sk_buff *skb;
struct ieee80211_local *local = sta->local;
if (!locked) {
spin_lock_bh(&local->sta_lock);
sta_info_remove(sta);
spin_unlock_bh(&local->sta_lock);
} else {
sta_info_remove(sta);
}
if (local->ops->sta_table_notification)
local->ops->sta_table_notification(local_to_hw(local),
local->num_sta);
while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
local->total_ps_buffered--;
dev_kfree_skb_any(skb);
}
while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
dev_kfree_skb_any(skb);
}
if (sta->key) {
if (local->ops->set_key) {
struct ieee80211_key_conf *key;
key = ieee80211_key_data2conf(local, sta->key);
if (key) {
local->ops->set_key(local_to_hw(local),
DISABLE_KEY,
sta->addr, key, sta->aid);
kfree(key);
}
}
} else if (sta->key_idx_compression != HW_KEY_IDX_INVALID) {
struct ieee80211_key_conf conf;
memset(&conf, 0, sizeof(conf));
conf.hw_key_idx = sta->key_idx_compression;
conf.alg = ALG_NULL;
conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
local->ops->set_key(local_to_hw(local), DISABLE_KEY,
sta->addr, &conf, sta->aid);
sta->key_idx_compression = HW_KEY_IDX_INVALID;
}
#ifdef CONFIG_MAC80211_DEBUGFS
if (in_atomic()) {
list_add(&sta->list, &local->deleted_sta_list);
queue_work(local->hw.workqueue, &local->sta_debugfs_add);
} else
#endif
finish_sta_info_free(local, sta);
}
static inline int sta_info_buffer_expired(struct ieee80211_local *local,
struct sta_info *sta,
struct sk_buff *skb)
{
struct ieee80211_tx_packet_data *pkt_data;
int timeout;
if (!skb)
return 0;
pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
/* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */
timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 /
15625) * HZ;
if (timeout < STA_TX_BUFFER_EXPIRE)
timeout = STA_TX_BUFFER_EXPIRE;
return time_after(jiffies, pkt_data->jiffies + timeout);
}
static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
struct sta_info *sta)
{
unsigned long flags;
struct sk_buff *skb;
if (skb_queue_empty(&sta->ps_tx_buf))
return;
for (;;) {
spin_lock_irqsave(&sta->ps_tx_buf.lock, flags);
skb = skb_peek(&sta->ps_tx_buf);
if (sta_info_buffer_expired(local, sta, skb)) {
skb = __skb_dequeue(&sta->ps_tx_buf);
if (skb_queue_empty(&sta->ps_tx_buf))
sta->flags &= ~WLAN_STA_TIM;
} else
skb = NULL;
spin_unlock_irqrestore(&sta->ps_tx_buf.lock, flags);
if (skb) {
local->total_ps_buffered--;
printk(KERN_DEBUG "Buffered frame expired (STA "
MAC_FMT ")\n", MAC_ARG(sta->addr));
dev_kfree_skb(skb);
} else
break;
}
}
static void sta_info_cleanup(unsigned long data)
{
struct ieee80211_local *local = (struct ieee80211_local *) data;
struct sta_info *sta;
spin_lock_bh(&local->sta_lock);
list_for_each_entry(sta, &local->sta_list, list) {
__sta_info_get(sta);
sta_info_cleanup_expire_buffered(local, sta);
sta_info_put(sta);
}
spin_unlock_bh(&local->sta_lock);
local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
add_timer(&local->sta_cleanup);
}
#ifdef CONFIG_MAC80211_DEBUGFS
static void sta_info_debugfs_add_task(struct work_struct *work)
{
struct ieee80211_local *local =
container_of(work, struct ieee80211_local, sta_debugfs_add);
struct sta_info *sta, *tmp;
while (1) {
spin_lock_bh(&local->sta_lock);
if (!list_empty(&local->deleted_sta_list)) {
sta = list_entry(local->deleted_sta_list.next,
struct sta_info, list);
list_del(local->deleted_sta_list.next);
} else
sta = NULL;
spin_unlock_bh(&local->sta_lock);
if (!sta)
break;
finish_sta_info_free(local, sta);
}
while (1) {
sta = NULL;
spin_lock_bh(&local->sta_lock);
list_for_each_entry(tmp, &local->sta_list, list) {
if (!tmp->debugfs_registered) {
sta = tmp;
__sta_info_get(sta);
break;
}
}
spin_unlock_bh(&local->sta_lock);
if (!sta)
break;
sta->debugfs_registered = 1;
ieee80211_sta_debugfs_add(sta);
rate_control_add_sta_debugfs(sta);
sta_info_put(sta);
}
}
#endif
void sta_info_init(struct ieee80211_local *local)
{
spin_lock_init(&local->sta_lock);
INIT_LIST_HEAD(&local->sta_list);
INIT_LIST_HEAD(&local->deleted_sta_list);
init_timer(&local->sta_cleanup);
local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
local->sta_cleanup.data = (unsigned long) local;
local->sta_cleanup.function = sta_info_cleanup;
#ifdef CONFIG_MAC80211_DEBUGFS
INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_task);
#endif
}
int sta_info_start(struct ieee80211_local *local)
{
add_timer(&local->sta_cleanup);
return 0;
}
void sta_info_stop(struct ieee80211_local *local)
{
struct sta_info *sta, *tmp;
del_timer(&local->sta_cleanup);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
/* sta_info_free must be called with 0 as the last
* parameter to ensure all debugfs sta entries are
* unregistered. We don't need locking at this
* point. */
sta_info_free(sta, 0);
}
}
void sta_info_remove_aid_ptr(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata;
if (sta->aid <= 0)
return;
sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
if (sdata->local->ops->set_tim)
sdata->local->ops->set_tim(local_to_hw(sdata->local),
sta->aid, 0);
if (sdata->bss)
__bss_tim_clear(sdata->bss, sta->aid);
}
/**
* sta_info_flush - flush matching STA entries from the STA table
* @local: local interface data
* @dev: matching rule for the net device (sta->dev) or %NULL to match all STAs
*/
void sta_info_flush(struct ieee80211_local *local, struct net_device *dev)
{
struct sta_info *sta, *tmp;
spin_lock_bh(&local->sta_lock);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
if (!dev || dev == sta->dev)
sta_info_free(sta, 1);
spin_unlock_bh(&local->sta_lock);
}

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/*
* Copyright 2002-2005, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef STA_INFO_H
#define STA_INFO_H
#include <linux/list.h>
#include <linux/types.h>
#include <linux/if_ether.h>
#include <linux/kref.h>
#include "ieee80211_key.h"
/* Stations flags (struct sta_info::flags) */
#define WLAN_STA_AUTH BIT(0)
#define WLAN_STA_ASSOC BIT(1)
#define WLAN_STA_PS BIT(2)
#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
* controlling whether STA is authorized to
* send and receive non-IEEE 802.1X frames
*/
#define WLAN_STA_SHORT_PREAMBLE BIT(7)
#define WLAN_STA_WME BIT(9)
#define WLAN_STA_HT BIT(10)
#define WLAN_STA_WDS BIT(27)
struct sta_info {
struct kref kref;
struct list_head list;
struct sta_info *hnext; /* next entry in hash table list */
struct ieee80211_local *local;
u8 addr[ETH_ALEN];
u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
u32 flags; /* WLAN_STA_ */
struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
* power saving state */
int pspoll; /* whether STA has send a PS Poll frame */
struct sk_buff_head tx_filtered; /* buffer of TX frames that were
* already given to low-level driver,
* but were filtered */
int clear_dst_mask;
unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
unsigned long rx_bytes, tx_bytes;
unsigned long tx_retry_failed, tx_retry_count;
unsigned long tx_filtered_count;
unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
unsigned long last_rx;
u32 supp_rates; /* bitmap of supported rates in local->curr_rates */
int txrate; /* index in local->curr_rates */
int last_txrate; /* last rate used to send a frame to this STA */
int last_nonerp_idx;
struct net_device *dev; /* which net device is this station associated
* to */
struct ieee80211_key *key;
u32 tx_num_consecutive_failures;
u32 tx_num_mpdu_ok;
u32 tx_num_mpdu_fail;
struct rate_control_ref *rate_ctrl;
void *rate_ctrl_priv;
/* last received seq/frag number from this STA (per RX queue) */
__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
unsigned long num_duplicates; /* number of duplicate frames received
* from this STA */
unsigned long tx_fragments; /* number of transmitted MPDUs */
unsigned long rx_fragments; /* number of received MPDUs */
unsigned long rx_dropped; /* number of dropped MPDUs from this STA */
int last_rssi; /* RSSI of last received frame from this STA */
int last_signal; /* signal of last received frame from this STA */
int last_noise; /* noise of last received frame from this STA */
int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */
unsigned long last_ack;
int channel_use;
int channel_use_raw;
u8 antenna_sel_tx;
u8 antenna_sel_rx;
int key_idx_compression; /* key table index for compression and TX
* filtering; used only if sta->key is not
* set */
#ifdef CONFIG_MAC80211_DEBUGFS
int debugfs_registered;
#endif
unsigned int assoc_ap:1; /* whether this is an AP that we are
* associated with as a client */
unsigned int dls_sta:1; /* whether this stations is a DLS peer of us */
#define DLS_STATUS_OK 0
#define DLS_STATUS_NOLINK 1
int dls_status;
u32 dls_timeout;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
u32 wpa_trigger;
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
int vlan_id;
u16 listen_interval;
#ifdef CONFIG_MAC80211_DEBUGFS
struct sta_info_debugfsdentries {
struct dentry *dir;
struct dentry *flags;
struct dentry *num_ps_buf_frames;
struct dentry *last_ack_rssi;
struct dentry *last_ack_ms;
struct dentry *inactive_ms;
struct dentry *last_seq_ctrl;
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
struct dentry *wme_rx_queue;
struct dentry *wme_tx_queue;
#endif
} debugfs;
#endif
};
/* Maximum number of concurrently registered stations */
#define MAX_STA_COUNT 2007
#define STA_HASH_SIZE 256
#define STA_HASH(sta) (sta[5])
/* Maximum number of frames to buffer per power saving station */
#define STA_MAX_TX_BUFFER 128
/* Minimum buffered frame expiry time. If STA uses listen interval that is
* smaller than this value, the minimum value here is used instead. */
#define STA_TX_BUFFER_EXPIRE (10 * HZ)
/* How often station data is cleaned up (e.g., expiration of buffered frames)
*/
#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
int sta_info_min_txrate_get(struct ieee80211_local *local);
void sta_info_put(struct sta_info *sta);
struct sta_info * sta_info_add(struct ieee80211_local *local,
struct net_device *dev, u8 *addr, gfp_t gfp);
void sta_info_free(struct sta_info *sta, int locked);
void sta_info_init(struct ieee80211_local *local);
int sta_info_start(struct ieee80211_local *local);
void sta_info_stop(struct ieee80211_local *local);
void sta_info_remove_aid_ptr(struct sta_info *sta);
void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
#endif /* STA_INFO_H */

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/*
* Copyright 2002-2004, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/netdevice.h>
#include <net/mac80211.h>
#include "ieee80211_key.h"
#include "tkip.h"
#include "wep.h"
/* TKIP key mixing functions */
#define PHASE1_LOOP_COUNT 8
/* 2-byte by 2-byte subset of the full AES S-box table; second part of this
* table is identical to first part but byte-swapped */
static const u16 tkip_sbox[256] =
{
0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
};
static inline u16 Mk16(u8 x, u8 y)
{
return ((u16) x << 8) | (u16) y;
}
static inline u8 Hi8(u16 v)
{
return v >> 8;
}
static inline u8 Lo8(u16 v)
{
return v & 0xff;
}
static inline u16 Hi16(u32 v)
{
return v >> 16;
}
static inline u16 Lo16(u32 v)
{
return v & 0xffff;
}
static inline u16 RotR1(u16 v)
{
return (v >> 1) | ((v & 0x0001) << 15);
}
static inline u16 tkip_S(u16 val)
{
u16 a = tkip_sbox[Hi8(val)];
return tkip_sbox[Lo8(val)] ^ Hi8(a) ^ (Lo8(a) << 8);
}
/* P1K := Phase1(TA, TK, TSC)
* TA = transmitter address (48 bits)
* TK = dot11DefaultKeyValue or dot11KeyMappingValue (128 bits)
* TSC = TKIP sequence counter (48 bits, only 32 msb bits used)
* P1K: 80 bits
*/
static void tkip_mixing_phase1(const u8 *ta, const u8 *tk, u32 tsc_IV32,
u16 *p1k)
{
int i, j;
p1k[0] = Lo16(tsc_IV32);
p1k[1] = Hi16(tsc_IV32);
p1k[2] = Mk16(ta[1], ta[0]);
p1k[3] = Mk16(ta[3], ta[2]);
p1k[4] = Mk16(ta[5], ta[4]);
for (i = 0; i < PHASE1_LOOP_COUNT; i++) {
j = 2 * (i & 1);
p1k[0] += tkip_S(p1k[4] ^ Mk16(tk[ 1 + j], tk[ 0 + j]));
p1k[1] += tkip_S(p1k[0] ^ Mk16(tk[ 5 + j], tk[ 4 + j]));
p1k[2] += tkip_S(p1k[1] ^ Mk16(tk[ 9 + j], tk[ 8 + j]));
p1k[3] += tkip_S(p1k[2] ^ Mk16(tk[13 + j], tk[12 + j]));
p1k[4] += tkip_S(p1k[3] ^ Mk16(tk[ 1 + j], tk[ 0 + j])) + i;
}
}
static void tkip_mixing_phase2(const u16 *p1k, const u8 *tk, u16 tsc_IV16,
u8 *rc4key)
{
u16 ppk[6];
int i;
ppk[0] = p1k[0];
ppk[1] = p1k[1];
ppk[2] = p1k[2];
ppk[3] = p1k[3];
ppk[4] = p1k[4];
ppk[5] = p1k[4] + tsc_IV16;
ppk[0] += tkip_S(ppk[5] ^ Mk16(tk[ 1], tk[ 0]));
ppk[1] += tkip_S(ppk[0] ^ Mk16(tk[ 3], tk[ 2]));
ppk[2] += tkip_S(ppk[1] ^ Mk16(tk[ 5], tk[ 4]));
ppk[3] += tkip_S(ppk[2] ^ Mk16(tk[ 7], tk[ 6]));
ppk[4] += tkip_S(ppk[3] ^ Mk16(tk[ 9], tk[ 8]));
ppk[5] += tkip_S(ppk[4] ^ Mk16(tk[11], tk[10]));
ppk[0] += RotR1(ppk[5] ^ Mk16(tk[13], tk[12]));
ppk[1] += RotR1(ppk[0] ^ Mk16(tk[15], tk[14]));
ppk[2] += RotR1(ppk[1]);
ppk[3] += RotR1(ppk[2]);
ppk[4] += RotR1(ppk[3]);
ppk[5] += RotR1(ppk[4]);
rc4key[0] = Hi8(tsc_IV16);
rc4key[1] = (Hi8(tsc_IV16) | 0x20) & 0x7f;
rc4key[2] = Lo8(tsc_IV16);
rc4key[3] = Lo8((ppk[5] ^ Mk16(tk[1], tk[0])) >> 1);
for (i = 0; i < 6; i++) {
rc4key[4 + 2 * i] = Lo8(ppk[i]);
rc4key[5 + 2 * i] = Hi8(ppk[i]);
}
}
/* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets
* of the IV. Returns pointer to the octet following IVs (i.e., beginning of
* the packet payload). */
u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
u8 iv0, u8 iv1, u8 iv2)
{
*pos++ = iv0;
*pos++ = iv1;
*pos++ = iv2;
*pos++ = (key->keyidx << 6) | (1 << 5) /* Ext IV */;
*pos++ = key->u.tkip.iv32 & 0xff;
*pos++ = (key->u.tkip.iv32 >> 8) & 0xff;
*pos++ = (key->u.tkip.iv32 >> 16) & 0xff;
*pos++ = (key->u.tkip.iv32 >> 24) & 0xff;
return pos;
}
void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
u16 *phase1key)
{
tkip_mixing_phase1(ta, &key->key[ALG_TKIP_TEMP_ENCR_KEY],
key->u.tkip.iv32, phase1key);
}
void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
u8 *rc4key)
{
/* Calculate per-packet key */
if (key->u.tkip.iv16 == 0 || !key->u.tkip.tx_initialized) {
/* IV16 wrapped around - perform TKIP phase 1 */
tkip_mixing_phase1(ta, &key->key[ALG_TKIP_TEMP_ENCR_KEY],
key->u.tkip.iv32, key->u.tkip.p1k);
key->u.tkip.tx_initialized = 1;
}
tkip_mixing_phase2(key->u.tkip.p1k, &key->key[ALG_TKIP_TEMP_ENCR_KEY],
key->u.tkip.iv16, rc4key);
}
/* Encrypt packet payload with TKIP using @key. @pos is a pointer to the
* beginning of the buffer containing payload. This payload must include
* headroom of eight octets for IV and Ext. IV and taildroom of four octets
* for ICV. @payload_len is the length of payload (_not_ including extra
* headroom and tailroom). @ta is the transmitter addresses. */
void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
struct ieee80211_key *key,
u8 *pos, size_t payload_len, u8 *ta)
{
u8 rc4key[16];
ieee80211_tkip_gen_rc4key(key, ta, rc4key);
pos = ieee80211_tkip_add_iv(pos, key, rc4key[0], rc4key[1], rc4key[2]);
ieee80211_wep_encrypt_data(tfm, rc4key, 16, pos, payload_len);
}
/* Decrypt packet payload with TKIP using @key. @pos is a pointer to the
* beginning of the buffer containing IEEE 802.11 header payload, i.e.,
* including IV, Ext. IV, real data, Michael MIC, ICV. @payload_len is the
* length of payload, including IV, Ext. IV, MIC, ICV. */
int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
struct ieee80211_key *key,
u8 *payload, size_t payload_len, u8 *ta,
int only_iv, int queue)
{
u32 iv32;
u32 iv16;
u8 rc4key[16], keyid, *pos = payload;
int res;
if (payload_len < 12)
return -1;
iv16 = (pos[0] << 8) | pos[2];
keyid = pos[3];
iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24);
pos += 8;
#ifdef CONFIG_TKIP_DEBUG
{
int i;
printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len);
for (i = 0; i < payload_len; i++)
printk(" %02x", payload[i]);
printk("\n");
printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x\n",
iv16, iv32);
}
#endif /* CONFIG_TKIP_DEBUG */
if (!(keyid & (1 << 5)))
return TKIP_DECRYPT_NO_EXT_IV;
if ((keyid >> 6) != key->keyidx)
return TKIP_DECRYPT_INVALID_KEYIDX;
if (key->u.tkip.rx_initialized[queue] &&
(iv32 < key->u.tkip.iv32_rx[queue] ||
(iv32 == key->u.tkip.iv32_rx[queue] &&
iv16 <= key->u.tkip.iv16_rx[queue]))) {
#ifdef CONFIG_TKIP_DEBUG
printk(KERN_DEBUG "TKIP replay detected for RX frame from "
MAC_FMT " (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n",
MAC_ARG(ta),
iv32, iv16, key->u.tkip.iv32_rx[queue],
key->u.tkip.iv16_rx[queue]);
#endif /* CONFIG_TKIP_DEBUG */
return TKIP_DECRYPT_REPLAY;
}
if (only_iv) {
res = TKIP_DECRYPT_OK;
key->u.tkip.rx_initialized[queue] = 1;
goto done;
}
if (!key->u.tkip.rx_initialized[queue] ||
key->u.tkip.iv32_rx[queue] != iv32) {
key->u.tkip.rx_initialized[queue] = 1;
/* IV16 wrapped around - perform TKIP phase 1 */
tkip_mixing_phase1(ta, &key->key[ALG_TKIP_TEMP_ENCR_KEY],
iv32, key->u.tkip.p1k_rx[queue]);
#ifdef CONFIG_TKIP_DEBUG
{
int i;
printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=" MAC_FMT
" TK=", MAC_ARG(ta));
for (i = 0; i < 16; i++)
printk("%02x ",
key->key[ALG_TKIP_TEMP_ENCR_KEY + i]);
printk("\n");
printk(KERN_DEBUG "TKIP decrypt: P1K=");
for (i = 0; i < 5; i++)
printk("%04x ", key->u.tkip.p1k_rx[queue][i]);
printk("\n");
}
#endif /* CONFIG_TKIP_DEBUG */
}
tkip_mixing_phase2(key->u.tkip.p1k_rx[queue],
&key->key[ALG_TKIP_TEMP_ENCR_KEY],
iv16, rc4key);
#ifdef CONFIG_TKIP_DEBUG
{
int i;
printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key=");
for (i = 0; i < 16; i++)
printk("%02x ", rc4key[i]);
printk("\n");
}
#endif /* CONFIG_TKIP_DEBUG */
res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12);
done:
if (res == TKIP_DECRYPT_OK) {
/* FIX: these should be updated only after Michael MIC has been
* verified */
/* Record previously received IV */
key->u.tkip.iv32_rx[queue] = iv32;
key->u.tkip.iv16_rx[queue] = iv16;
}
return res;
}

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/*
* Copyright 2002-2004, Instant802 Networks, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef TKIP_H
#define TKIP_H
#include <linux/types.h>
#include <linux/crypto.h>
#include "ieee80211_key.h"
u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
u8 iv0, u8 iv1, u8 iv2);
void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
u16 *phase1key);
void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
u8 *rc4key);
void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
struct ieee80211_key *key,
u8 *pos, size_t payload_len, u8 *ta);
enum {
TKIP_DECRYPT_OK = 0,
TKIP_DECRYPT_NO_EXT_IV = -1,
TKIP_DECRYPT_INVALID_KEYIDX = -2,
TKIP_DECRYPT_REPLAY = -3,
};
int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
struct ieee80211_key *key,
u8 *payload, size_t payload_len, u8 *ta,
int only_iv, int queue);
#endif /* TKIP_H */

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/*
* Software WEP encryption implementation
* Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
* Copyright 2003, Instant802 Networks, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/random.h>
#include <linux/compiler.h>
#include <linux/crc32.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <linux/mm.h>
#include <asm/scatterlist.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "wep.h"
int ieee80211_wep_init(struct ieee80211_local *local)
{
/* start WEP IV from a random value */
get_random_bytes(&local->wep_iv, WEP_IV_LEN);
local->wep_tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
CRYPTO_ALG_ASYNC);
if (IS_ERR(local->wep_tx_tfm))
return -ENOMEM;
local->wep_rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
CRYPTO_ALG_ASYNC);
if (IS_ERR(local->wep_rx_tfm)) {
crypto_free_blkcipher(local->wep_tx_tfm);
return -ENOMEM;
}
return 0;
}
void ieee80211_wep_free(struct ieee80211_local *local)
{
crypto_free_blkcipher(local->wep_tx_tfm);
crypto_free_blkcipher(local->wep_rx_tfm);
}
static inline int ieee80211_wep_weak_iv(u32 iv, int keylen)
{
/* Fluhrer, Mantin, and Shamir have reported weaknesses in the
* key scheduling algorithm of RC4. At least IVs (KeyByte + 3,
* 0xff, N) can be used to speedup attacks, so avoid using them. */
if ((iv & 0xff00) == 0xff00) {
u8 B = (iv >> 16) & 0xff;
if (B >= 3 && B < 3 + keylen)
return 1;
}
return 0;
}
void ieee80211_wep_get_iv(struct ieee80211_local *local,
struct ieee80211_key *key, u8 *iv)
{
local->wep_iv++;
if (ieee80211_wep_weak_iv(local->wep_iv, key->keylen))
local->wep_iv += 0x0100;
if (!iv)
return;
*iv++ = (local->wep_iv >> 16) & 0xff;
*iv++ = (local->wep_iv >> 8) & 0xff;
*iv++ = local->wep_iv & 0xff;
*iv++ = key->keyidx << 6;
}
u8 * ieee80211_wep_add_iv(struct ieee80211_local *local,
struct sk_buff *skb,
struct ieee80211_key *key)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
int hdrlen;
u8 *newhdr;
fc = le16_to_cpu(hdr->frame_control);
fc |= IEEE80211_FCTL_PROTECTED;
hdr->frame_control = cpu_to_le16(fc);
if ((skb_headroom(skb) < WEP_IV_LEN ||
skb_tailroom(skb) < WEP_ICV_LEN)) {
I802_DEBUG_INC(local->tx_expand_skb_head);
if (unlikely(pskb_expand_head(skb, WEP_IV_LEN, WEP_ICV_LEN,
GFP_ATOMIC)))
return NULL;
}
hdrlen = ieee80211_get_hdrlen(fc);
newhdr = skb_push(skb, WEP_IV_LEN);
memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen);
ieee80211_wep_get_iv(local, key, newhdr + hdrlen);
return newhdr + hdrlen;
}
void ieee80211_wep_remove_iv(struct ieee80211_local *local,
struct sk_buff *skb,
struct ieee80211_key *key)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
int hdrlen;
fc = le16_to_cpu(hdr->frame_control);
hdrlen = ieee80211_get_hdrlen(fc);
memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
skb_pull(skb, WEP_IV_LEN);
}
/* Perform WEP encryption using given key. data buffer must have tailroom
* for 4-byte ICV. data_len must not include this ICV. Note: this function
* does _not_ add IV. data = RC4(data | CRC32(data)) */
void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
size_t klen, u8 *data, size_t data_len)
{
struct blkcipher_desc desc = { .tfm = tfm };
struct scatterlist sg;
__le32 *icv;
icv = (__le32 *)(data + data_len);
*icv = cpu_to_le32(~crc32_le(~0, data, data_len));
crypto_blkcipher_setkey(tfm, rc4key, klen);
sg.page = virt_to_page(data);
sg.offset = offset_in_page(data);
sg.length = data_len + WEP_ICV_LEN;
crypto_blkcipher_encrypt(&desc, &sg, &sg, sg.length);
}
/* Perform WEP encryption on given skb. 4 bytes of extra space (IV) in the
* beginning of the buffer 4 bytes of extra space (ICV) in the end of the
* buffer will be added. Both IV and ICV will be transmitted, so the
* payload length increases with 8 bytes.
*
* WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data))
*/
int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
struct ieee80211_key *key)
{
u32 klen;
u8 *rc4key, *iv;
size_t len;
if (!key || key->alg != ALG_WEP)
return -1;
klen = 3 + key->keylen;
rc4key = kmalloc(klen, GFP_ATOMIC);
if (!rc4key)
return -1;
iv = ieee80211_wep_add_iv(local, skb, key);
if (!iv) {
kfree(rc4key);
return -1;
}
len = skb->len - (iv + WEP_IV_LEN - skb->data);
/* Prepend 24-bit IV to RC4 key */
memcpy(rc4key, iv, 3);
/* Copy rest of the WEP key (the secret part) */
memcpy(rc4key + 3, key->key, key->keylen);
/* Add room for ICV */
skb_put(skb, WEP_ICV_LEN);
ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, klen,
iv + WEP_IV_LEN, len);
kfree(rc4key);
return 0;
}
/* Perform WEP decryption using given key. data buffer includes encrypted
* payload, including 4-byte ICV, but _not_ IV. data_len must not include ICV.
* Return 0 on success and -1 on ICV mismatch. */
int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
size_t klen, u8 *data, size_t data_len)
{
struct blkcipher_desc desc = { .tfm = tfm };
struct scatterlist sg;
__le32 crc;
crypto_blkcipher_setkey(tfm, rc4key, klen);
sg.page = virt_to_page(data);
sg.offset = offset_in_page(data);
sg.length = data_len + WEP_ICV_LEN;
crypto_blkcipher_decrypt(&desc, &sg, &sg, sg.length);
crc = cpu_to_le32(~crc32_le(~0, data, data_len));
if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0)
/* ICV mismatch */
return -1;
return 0;
}
/* Perform WEP decryption on given skb. Buffer includes whole WEP part of
* the frame: IV (4 bytes), encrypted payload (including SNAP header),
* ICV (4 bytes). skb->len includes both IV and ICV.
*
* Returns 0 if frame was decrypted successfully and ICV was correct and -1 on
* failure. If frame is OK, IV and ICV will be removed, i.e., decrypted payload
* is moved to the beginning of the skb and skb length will be reduced.
*/
int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
struct ieee80211_key *key)
{
u32 klen;
u8 *rc4key;
u8 keyidx;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
int hdrlen;
size_t len;
int ret = 0;
fc = le16_to_cpu(hdr->frame_control);
if (!(fc & IEEE80211_FCTL_PROTECTED))
return -1;
hdrlen = ieee80211_get_hdrlen(fc);
if (skb->len < 8 + hdrlen)
return -1;
len = skb->len - hdrlen - 8;
keyidx = skb->data[hdrlen + 3] >> 6;
if (!key || keyidx != key->keyidx || key->alg != ALG_WEP)
return -1;
klen = 3 + key->keylen;
rc4key = kmalloc(klen, GFP_ATOMIC);
if (!rc4key)
return -1;
/* Prepend 24-bit IV to RC4 key */
memcpy(rc4key, skb->data + hdrlen, 3);
/* Copy rest of the WEP key (the secret part) */
memcpy(rc4key + 3, key->key, key->keylen);
if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
skb->data + hdrlen + WEP_IV_LEN,
len)) {
printk(KERN_DEBUG "WEP decrypt failed (ICV)\n");
ret = -1;
}
kfree(rc4key);
/* Trim ICV */
skb_trim(skb, skb->len - WEP_ICV_LEN);
/* Remove IV */
memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
skb_pull(skb, WEP_IV_LEN);
return ret;
}
int ieee80211_wep_get_keyidx(struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
int hdrlen;
fc = le16_to_cpu(hdr->frame_control);
if (!(fc & IEEE80211_FCTL_PROTECTED))
return -1;
hdrlen = ieee80211_get_hdrlen(fc);
if (skb->len < 8 + hdrlen)
return -1;
return skb->data[hdrlen + 3] >> 6;
}
u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
int hdrlen;
u8 *ivpos;
u32 iv;
fc = le16_to_cpu(hdr->frame_control);
if (!(fc & IEEE80211_FCTL_PROTECTED))
return NULL;
hdrlen = ieee80211_get_hdrlen(fc);
ivpos = skb->data + hdrlen;
iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2];
if (ieee80211_wep_weak_iv(iv, key->keylen))
return ivpos;
return NULL;
}

40
package/mac80211/src/mac80211/wep.h Normal file
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/*
* Software WEP encryption implementation
* Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
* Copyright 2003, Instant802 Networks, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef WEP_H
#define WEP_H
#include <linux/skbuff.h>
#include <linux/types.h>
#include "ieee80211_i.h"
#include "ieee80211_key.h"
int ieee80211_wep_init(struct ieee80211_local *local);
void ieee80211_wep_free(struct ieee80211_local *local);
void ieee80211_wep_get_iv(struct ieee80211_local *local,
struct ieee80211_key *key, u8 *iv);
u8 * ieee80211_wep_add_iv(struct ieee80211_local *local,
struct sk_buff *skb,
struct ieee80211_key *key);
void ieee80211_wep_remove_iv(struct ieee80211_local *local,
struct sk_buff *skb,
struct ieee80211_key *key);
void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
size_t klen, u8 *data, size_t data_len);
int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
size_t klen, u8 *data, size_t data_len);
int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
struct ieee80211_key *key);
int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
struct ieee80211_key *key);
int ieee80211_wep_get_keyidx(struct sk_buff *skb);
u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);
#endif /* WEP_H */

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package/mac80211/src/mac80211/wme.c Normal file
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/*
* Copyright 2004, Instant802 Networks, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/module.h>
#include <linux/if_arp.h>
#include <linux/types.h>
#include <net/ip.h>
#include <net/pkt_sched.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "wme.h"
static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
{
return (fc & 0x8C) == 0x88;
}
ieee80211_txrx_result
ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
{
u8 *data = rx->skb->data;
int tid;
unsigned int is_agg_frame = 0;
/* does the frame have a qos control field? */
if (WLAN_FC_IS_QOS_DATA(rx->fc)) {
u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN;
/* frame has qos control */
rx->u.rx.qos_control = le16_to_cpu(*((__le16*)qc));
tid = rx->u.rx.qos_control & QOS_CONTROL_TID_MASK;
if (rx->u.rx.qos_control &
IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
is_agg_frame = 1;
} else {
if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
/* Separate TID for management frames */
tid = NUM_RX_DATA_QUEUES - 1;
} else {
/* no qos control present */
tid = 0; /* 802.1d - Best Effort */
}
rx->u.rx.qos_control = 0;
}
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
if (rx->sta) {
I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
}
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
rx->u.rx.queue = tid;
rx->u.rx.is_agg_frame = is_agg_frame;
/* Set skb->priority to 1d tag if highest order bit of TID is not set.
* For now, set skb->priority to 0 for other cases. */
rx->skb->priority = (tid > 7) ? 0 : tid;
return TXRX_CONTINUE;
}
ieee80211_txrx_result
ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
{
u16 fc = rx->fc;
u8 *data = rx->skb->data;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data;
if (!WLAN_FC_IS_QOS_DATA(fc))
return TXRX_CONTINUE;
/* remove the qos control field, update frame type and meta-data */
memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2);
hdr = (struct ieee80211_hdr *) skb_pull(rx->skb, 2);
/* change frame type to non QOS */
rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA;
hdr->frame_control = cpu_to_le16(fc);
return TXRX_CONTINUE;
}
#ifdef CONFIG_NET_SCHED
/* maximum number of hardware queues we support. */
#define TC_80211_MAX_QUEUES 8
struct ieee80211_sched_data
{
struct tcf_proto *filter_list;
struct Qdisc *queues[TC_80211_MAX_QUEUES];
struct sk_buff_head requeued[TC_80211_MAX_QUEUES];
};
/* given a data frame determine the 802.1p/1d tag to use */
static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd)
{
struct iphdr *ip;
int dscp;
int offset;
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct tcf_result res = { -1, 0 };
/* if there is a user set filter list, call out to that */
if (q->filter_list) {
tc_classify(skb, q->filter_list, &res);
if (res.class != -1)
return res.class;
}
/* skb->priority values from 256->263 are magic values to
* directly indicate a specific 802.1d priority.
* This is used to allow 802.1d priority to be passed directly in
* from VLAN tags, etc. */
if (skb->priority >= 256 && skb->priority <= 263)
return skb->priority - 256;
/* check there is a valid IP header present */
offset = ieee80211_get_hdrlen_from_skb(skb) + 8 /* LLC + proto */;
if (skb->protocol != __constant_htons(ETH_P_IP) ||
skb->len < offset + sizeof(*ip))
return 0;
ip = (struct iphdr *) (skb->data + offset);
dscp = ip->tos & 0xfc;
if (dscp & 0x1c)
return 0;
return dscp >> 5;
}
static inline int wme_downgrade_ac(struct sk_buff *skb)
{
switch (skb->priority) {
case 6:
case 7:
skb->priority = 5; /* VO -> VI */
return 0;
case 4:
case 5:
skb->priority = 3; /* VI -> BE */
return 0;
case 0:
case 3:
skb->priority = 2; /* BE -> BK */
return 0;
default:
return -1;
}
}
/* positive return value indicates which queue to use
* negative return value indicates to drop the frame */
static inline int classify80211(struct sk_buff *skb, struct Qdisc *qd)
{
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(qd->dev);
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
struct ieee80211_tx_packet_data *pkt_data =
(struct ieee80211_tx_packet_data *) skb->cb;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
unsigned short fc = le16_to_cpu(hdr->frame_control);
int qos, tsid, dir;
const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
/* see if frame is data or non data frame */
if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) {
/* management frames go on AC_VO queue, but are sent
* without QoS control fields */
return IEEE80211_TX_QUEUE_DATA0;
}
if (unlikely(pkt_data->mgmt_iface)) {
/* Data frames from hostapd (mainly, EAPOL) use AC_VO
* and they will include QoS control fields if
* the target STA is using WME. */
skb->priority = 7;
return ieee802_1d_to_ac[skb->priority];
}
/* is this a QoS frame? */
qos = fc & IEEE80211_STYPE_QOS_DATA;
if (!qos) {
skb->priority = 0; /* required for correct WPA/11i MIC */
return ieee802_1d_to_ac[skb->priority];
}
/* use the data classifier to determine what 802.1d tag the
* data frame has */
skb->priority = classify_1d(skb, qd);
tsid = 8 + skb->priority;
/* FIXME: only uplink needs to be checked for Tx */
dir = STA_TS_UPLINK;
if ((sdata->type == IEEE80211_IF_TYPE_STA) &&
(local->wmm_acm & BIT(skb->priority))) {
switch (ifsta->ts_data[tsid][dir].status) {
case TS_STATUS_ACTIVE:
/* if TS Management is enabled, update used_time */
ifsta->ts_data[tsid][dir].used_time_usec +=
ifsta->MPDUExchangeTime;
break;
case TS_STATUS_THROTTLING:
/* if admitted time is used up, refuse to send more */
if (net_ratelimit())
printk(KERN_DEBUG "QoS packet throttling\n");
break;
default:
break;
}
}
/* in case we are a client verify acm is not set for this ac */
while ((local->wmm_acm & BIT(skb->priority)) &&
!((sdata->type == IEEE80211_IF_TYPE_STA) &&
(ifsta->ts_data[skb->priority + EDCA_TSID_MIN][dir].status
== TS_STATUS_ACTIVE))) {
if (wme_downgrade_ac(skb)) {
/* No AC with lower priority has acm=0, drop packet. */
return -1;
}
}
/* look up which queue to use for frames with this 1d tag */
return ieee802_1d_to_ac[skb->priority];
}
static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
{
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct ieee80211_tx_packet_data *pkt_data =
(struct ieee80211_tx_packet_data *) skb->cb;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
unsigned short fc = le16_to_cpu(hdr->frame_control);
struct Qdisc *qdisc;
int err, queue;
if (pkt_data->requeue) {
skb_queue_tail(&q->requeued[pkt_data->queue], skb);
qd->q.qlen++;
return 0;
}
queue = classify80211(skb, qd);
/* now we know the 1d priority, fill in the QoS header if there is one
*/
if (WLAN_FC_IS_QOS_DATA(fc)) {
u8 *p = skb->data + ieee80211_get_hdrlen(fc) - 2;
u8 qos_hdr = skb->priority & QOS_CONTROL_TAG1D_MASK;
if (local->wifi_wme_noack_test)
qos_hdr |= QOS_CONTROL_ACK_POLICY_NOACK <<
QOS_CONTROL_ACK_POLICY_SHIFT;
/* qos header is 2 bytes, second reserved */
*p = qos_hdr;
p++;
*p = 0;
}
if (unlikely(queue >= local->hw.queues)) {
#if 0
if (net_ratelimit()) {
printk(KERN_DEBUG "%s - queue=%d (hw does not "
"support) -> %d\n",
__func__, queue, local->hw.queues - 1);
}
#endif
queue = local->hw.queues - 1;
}
if (unlikely(queue < 0)) {
kfree_skb(skb);
err = NET_XMIT_DROP;
} else {
pkt_data->queue = (unsigned int) queue;
qdisc = q->queues[queue];
err = qdisc->enqueue(skb, qdisc);
if (err == NET_XMIT_SUCCESS) {
qd->q.qlen++;
qd->bstats.bytes += skb->len;
qd->bstats.packets++;
return NET_XMIT_SUCCESS;
}
}
qd->qstats.drops++;
return err;
}
/* TODO: clean up the cases where master_hard_start_xmit
* returns non 0 - it shouldn't ever do that. Once done we
* can remove this function */
static int wme_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct ieee80211_tx_packet_data *pkt_data =
(struct ieee80211_tx_packet_data *) skb->cb;
struct Qdisc *qdisc;
int err;
/* we recorded which queue to use earlier! */
qdisc = q->queues[pkt_data->queue];
if ((err = qdisc->ops->requeue(skb, qdisc)) == 0) {
qd->q.qlen++;
return 0;
}
qd->qstats.drops++;
return err;
}
static struct sk_buff *wme_qdiscop_dequeue(struct Qdisc* qd)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct net_device *dev = qd->dev;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
struct sk_buff *skb;
struct Qdisc *qdisc;
int queue;
/* check all the h/w queues in numeric/priority order */
for (queue = 0; queue < hw->queues; queue++) {
/* see if there is room in this hardware queue */
if (test_bit(IEEE80211_LINK_STATE_XOFF,
&local->state[queue]) ||
test_bit(IEEE80211_LINK_STATE_PENDING,
&local->state[queue]))
continue;
/* there is space - try and get a frame */
skb = skb_dequeue(&q->requeued[queue]);
if (skb) {
qd->q.qlen--;
return skb;
}
qdisc = q->queues[queue];
skb = qdisc->dequeue(qdisc);
if (skb) {
qd->q.qlen--;
return skb;
}
}
/* returning a NULL here when all the h/w queues are full means we
* never need to call netif_stop_queue in the driver */
return NULL;
}
static void wme_qdiscop_reset(struct Qdisc* qd)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
int queue;
/* QUESTION: should we have some hardware flush functionality here? */
for (queue = 0; queue < hw->queues; queue++) {
skb_queue_purge(&q->requeued[queue]);
qdisc_reset(q->queues[queue]);
}
qd->q.qlen = 0;
}
static void wme_qdiscop_destroy(struct Qdisc* qd)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
int queue;
tcf_destroy_chain(q->filter_list);
q->filter_list = NULL;
for (queue=0; queue < hw->queues; queue++) {
skb_queue_purge(&q->requeued[queue]);
qdisc_destroy(q->queues[queue]);
q->queues[queue] = &noop_qdisc;
}
}
/* called whenever parameters are updated on existing qdisc */
static int wme_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt)
{
/* struct ieee80211_sched_data *q = qdisc_priv(qd);
*/
/* check our options block is the right size */
/* copy any options to our local structure */
/* Ignore options block for now - always use static mapping
struct tc_ieee80211_qopt *qopt = RTA_DATA(opt);
if (opt->rta_len < RTA_LENGTH(sizeof(*qopt)))
return -EINVAL;
memcpy(q->tag2queue, qopt->tag2queue, sizeof(qopt->tag2queue));
*/
return 0;
}
/* called during initial creation of qdisc on device */
static int wme_qdiscop_init(struct Qdisc *qd, struct rtattr *opt)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct net_device *dev = qd->dev;
struct ieee80211_local *local;
int queues;
int err = 0, i;
/* check that device is a mac80211 device */
if (!dev->ieee80211_ptr ||
dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
return -EINVAL;
/* check this device is an ieee80211 master type device */
if (dev->type != ARPHRD_IEEE80211)
return -EINVAL;
/* check that there is no qdisc currently attached to device
* this ensures that we will be the root qdisc. (I can't find a better
* way to test this explicitly) */
if (dev->qdisc_sleeping != &noop_qdisc)
return -EINVAL;
if (qd->flags & TCQ_F_INGRESS)
return -EINVAL;
local = wdev_priv(dev->ieee80211_ptr);
queues = local->hw.queues;
/* if options were passed in, set them */
if (opt) {
err = wme_qdiscop_tune(qd, opt);
}
/* create child queues */
for (i = 0; i < queues; i++) {
skb_queue_head_init(&q->requeued[i]);
q->queues[i] = qdisc_create_dflt(qd->dev, &pfifo_qdisc_ops,
qd->handle);
if (q->queues[i] == 0) {
q->queues[i] = &noop_qdisc;
printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i);
}
}
return err;
}
static int wme_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb)
{
/* struct ieee80211_sched_data *q = qdisc_priv(qd);
unsigned char *p = skb->tail;
struct tc_ieee80211_qopt opt;
memcpy(&opt.tag2queue, q->tag2queue, TC_80211_MAX_TAG + 1);
RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
*/ return skb->len;
/*
rtattr_failure:
skb_trim(skb, p - skb->data);*/
return -1;
}
static int wme_classop_graft(struct Qdisc *qd, unsigned long arg,
struct Qdisc *new, struct Qdisc **old)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
unsigned long queue = arg - 1;
if (queue >= hw->queues)
return -EINVAL;
if (!new)
new = &noop_qdisc;
sch_tree_lock(qd);
*old = q->queues[queue];
q->queues[queue] = new;
qdisc_reset(*old);
sch_tree_unlock(qd);
return 0;
}
static struct Qdisc *
wme_classop_leaf(struct Qdisc *qd, unsigned long arg)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
unsigned long queue = arg - 1;
if (queue >= hw->queues)
return NULL;
return q->queues[queue];
}
static unsigned long wme_classop_get(struct Qdisc *qd, u32 classid)
{
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
unsigned long queue = TC_H_MIN(classid);
if (queue - 1 >= hw->queues)
return 0;
return queue;
}
static unsigned long wme_classop_bind(struct Qdisc *qd, unsigned long parent,
u32 classid)
{
return wme_classop_get(qd, classid);
}
static void wme_classop_put(struct Qdisc *q, unsigned long cl)
{
}
static int wme_classop_change(struct Qdisc *qd, u32 handle, u32 parent,
struct rtattr **tca, unsigned long *arg)
{
unsigned long cl = *arg;
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
if (cl - 1 > hw->queues)
return -ENOENT;
/* TODO: put code to program hardware queue parameters here,
* to allow programming from tc command line */
return 0;
}
/* we don't support deleting hardware queues
* when we add WMM-SA support - TSPECs may be deleted here */
static int wme_classop_delete(struct Qdisc *qd, unsigned long cl)
{
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
if (cl - 1 > hw->queues)
return -ENOENT;
return 0;
}
static int wme_classop_dump_class(struct Qdisc *qd, unsigned long cl,
struct sk_buff *skb, struct tcmsg *tcm)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
if (cl - 1 > hw->queues)
return -ENOENT;
tcm->tcm_handle = TC_H_MIN(cl);
tcm->tcm_parent = qd->handle;
tcm->tcm_info = q->queues[cl-1]->handle; /* do we need this? */
return 0;
}
static void wme_classop_walk(struct Qdisc *qd, struct qdisc_walker *arg)
{
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
int queue;
if (arg->stop)
return;
for (queue = 0; queue < hw->queues; queue++) {
if (arg->count < arg->skip) {
arg->count++;
continue;
}
/* we should return classids for our internal queues here
* as well as the external ones */
if (arg->fn(qd, queue+1, arg) < 0) {
arg->stop = 1;
break;
}
arg->count++;
}
}
static struct tcf_proto ** wme_classop_find_tcf(struct Qdisc *qd,
unsigned long cl)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
if (cl)
return NULL;
return &q->filter_list;
}
/* this qdisc is classful (i.e. has classes, some of which may have leaf qdiscs attached)
* - these are the operations on the classes */
static struct Qdisc_class_ops class_ops =
{
.graft = wme_classop_graft,
.leaf = wme_classop_leaf,
.get = wme_classop_get,
.put = wme_classop_put,
.change = wme_classop_change,
.delete = wme_classop_delete,
.walk = wme_classop_walk,
.tcf_chain = wme_classop_find_tcf,
.bind_tcf = wme_classop_bind,
.unbind_tcf = wme_classop_put,
.dump = wme_classop_dump_class,
};
/* queueing discipline operations */
static struct Qdisc_ops wme_qdisc_ops =
{
.next = NULL,
.cl_ops = &class_ops,
.id = "ieee80211",
.priv_size = sizeof(struct ieee80211_sched_data),
.enqueue = wme_qdiscop_enqueue,
.dequeue = wme_qdiscop_dequeue,
.requeue = wme_qdiscop_requeue,
.drop = NULL, /* drop not needed since we are always the root qdisc */
.init = wme_qdiscop_init,
.reset = wme_qdiscop_reset,
.destroy = wme_qdiscop_destroy,
.change = wme_qdiscop_tune,
.dump = wme_qdiscop_dump,
};
void ieee80211_install_qdisc(struct net_device *dev)
{
struct Qdisc *qdisc;
qdisc = qdisc_create_dflt(dev, &wme_qdisc_ops, TC_H_ROOT);
if (!qdisc) {
printk(KERN_ERR "%s: qdisc installation failed\n", dev->name);
return;
}
/* same handle as would be allocated by qdisc_alloc_handle() */
qdisc->handle = 0x80010000;
qdisc_lock_tree(dev);
list_add_tail(&qdisc->list, &dev->qdisc_list);
dev->qdisc_sleeping = qdisc;
qdisc_unlock_tree(dev);
}
int ieee80211_qdisc_installed(struct net_device *dev)
{
return dev->qdisc_sleeping->ops == &wme_qdisc_ops;
}
int ieee80211_wme_register(void)
{
return register_qdisc(&wme_qdisc_ops);
}
void ieee80211_wme_unregister(void)
{
unregister_qdisc(&wme_qdisc_ops);
}
#endif /* CONFIG_NET_SCHED */

57
package/mac80211/src/mac80211/wme.h Normal file
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/*
* IEEE 802.11 driver (80211.o) - QoS datatypes
* Copyright 2004, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _WME_H
#define _WME_H
#include <linux/netdevice.h>
#include "ieee80211_i.h"
#define QOS_CONTROL_LEN 2
#define QOS_CONTROL_ACK_POLICY_NORMAL 0
#define QOS_CONTROL_ACK_POLICY_NOACK 1
#define QOS_CONTROL_TID_MASK 0x0f
#define QOS_CONTROL_ACK_POLICY_SHIFT 5
#define QOS_CONTROL_TAG1D_MASK 0x07
ieee80211_txrx_result
ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx);
ieee80211_txrx_result
ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx);
#ifdef CONFIG_NET_SCHED
void ieee80211_install_qdisc(struct net_device *dev);
int ieee80211_qdisc_installed(struct net_device *dev);
int ieee80211_wme_register(void);
void ieee80211_wme_unregister(void);
#else
static inline void ieee80211_install_qdisc(struct net_device *dev)
{
}
static inline int ieee80211_qdisc_installed(struct net_device *dev)
{
return 0;
}
static inline int ieee80211_wme_register(void)
{
return 0;
}
static inline void ieee80211_wme_unregister(void)
{
}
#endif /* CONFIG_NET_SCHED */
#endif /* _WME_H */

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/*
* Copyright 2002-2004, Instant802 Networks, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/compiler.h>
#include <net/iw_handler.h>
#include <net/mac80211.h>
#include "ieee80211_common.h"
#include "ieee80211_i.h"
#include "michael.h"
#include "tkip.h"
#include "aes_ccm.h"
#include "wpa.h"
#ifdef CONFIG_HOSTAPD_WPA_TESTING
#include "hostapd_ioctl.h"
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
static int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
u8 *qos_tid, u8 **data, size_t *data_len)
{
struct ieee80211_hdr *hdr;
size_t hdrlen;
u16 fc;
int a4_included;
u8 *pos;
hdr = (struct ieee80211_hdr *) skb->data;
fc = le16_to_cpu(hdr->frame_control);
hdrlen = 24;
if ((fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) ==
(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
hdrlen += ETH_ALEN;
*sa = hdr->addr4;
*da = hdr->addr3;
} else if (fc & IEEE80211_FCTL_FROMDS) {
*sa = hdr->addr3;
*da = hdr->addr1;
} else if (fc & IEEE80211_FCTL_TODS) {
*sa = hdr->addr2;
*da = hdr->addr3;
} else {
*sa = hdr->addr2;
*da = hdr->addr1;
}
if (fc & 0x80)
hdrlen += 2;
*data = skb->data + hdrlen;
*data_len = skb->len - hdrlen;
a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
fc & IEEE80211_STYPE_QOS_DATA) {
pos = (u8 *) &hdr->addr4;
if (a4_included)
pos += 6;
*qos_tid = pos[0] & 0x0f;
*qos_tid |= 0x80; /* qos_included flag */
} else
*qos_tid = 0;
return skb->len < hdrlen ? -1 : 0;
}
ieee80211_txrx_result
ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
{
u8 *data, *sa, *da, *key, *mic, qos_tid;
size_t data_len;
u16 fc;
struct sk_buff *skb = tx->skb;
int authenticator;
int wpa_test = 0;
fc = tx->fc;
if (!tx->key || tx->key->alg != ALG_TKIP || skb->len < 24 ||
!WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;
if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len))
return TXRX_DROP;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) ||
(!tx->u.tx.unicast &&
tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC)) {
wpa_test = 1;
}
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
if (!tx->key->force_sw_encrypt &&
!tx->fragmented &&
!(tx->local->hw.flags & IEEE80211_HW_TKIP_INCLUDE_MMIC) &&
!wpa_test) {
/* hwaccel - with no need for preallocated room for Michael MIC
*/
return TXRX_CONTINUE;
}
if (skb_tailroom(skb) < MICHAEL_MIC_LEN) {
I802_DEBUG_INC(tx->local->tx_expand_skb_head);
if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN,
MICHAEL_MIC_LEN + TKIP_ICV_LEN,
GFP_ATOMIC))) {
printk(KERN_DEBUG "%s: failed to allocate more memory "
"for Michael MIC\n", tx->dev->name);
return TXRX_DROP;
}
}
#if 0
authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */
#else
authenticator = 1;
#endif
key = &tx->key->key[authenticator ? ALG_TKIP_TEMP_AUTH_TX_MIC_KEY :
ALG_TKIP_TEMP_AUTH_RX_MIC_KEY];
mic = skb_put(skb, MICHAEL_MIC_LEN);
michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) {
printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC "
"for STA " MAC_FMT "\n",
tx->dev->name, MAC_ARG(tx->sta->addr));
tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC;
tx->wpa_test = 1;
mic[0]++;
} else if (!tx->u.tx.unicast &&
tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) {
printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC "
"for Group Key\n", tx->dev->name);
tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC;
tx->wpa_test = 1;
mic[0]++;
}
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
return TXRX_CONTINUE;
}
ieee80211_txrx_result
ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
{
u8 *data, *sa, *da, *key = NULL, qos_tid;
size_t data_len;
u16 fc;
u8 mic[MICHAEL_MIC_LEN];
struct sk_buff *skb = rx->skb;
int authenticator = 1, wpa_test = 0;
fc = rx->fc;
/* If device handles decryption totally, skip this check */
if ((rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) ||
(rx->local->hw.flags & IEEE80211_HW_DEVICE_STRIPS_MIC))
return TXRX_CONTINUE;
if (!rx->key || rx->key->alg != ALG_TKIP ||
!(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) {
wpa_test = 1;
}
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
!rx->key->force_sw_encrypt) {
if (rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) {
if (skb->len < MICHAEL_MIC_LEN)
return TXRX_DROP;
}
/* Need to verify Michael MIC sometimes in software even when
* hwaccel is used. Atheros ar5212: fragmented frames and QoS
* frames. */
if (!rx->fragmented && !wpa_test)
goto remove_mic;
}
if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)
|| data_len < MICHAEL_MIC_LEN)
return TXRX_DROP;
data_len -= MICHAEL_MIC_LEN;
#if 0
authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */
#else
authenticator = 1;
#endif
key = &rx->key->key[authenticator ? ALG_TKIP_TEMP_AUTH_RX_MIC_KEY :
ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) {
printk(KERN_INFO "%s: WPA testing - corrupting RX Michael MIC "
"for STA " MAC_FMT "\n",
rx->dev->name, MAC_ARG(rx->sta->addr));
rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_MIC;
mic[0]++;
}
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
#ifdef CONFIG_HOSTAPD_WPA_TESTING
int i;
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
if (!rx->u.rx.ra_match)
return TXRX_DROP;
printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
MAC_FMT "\n", rx->dev->name, MAC_ARG(sa));
#ifdef CONFIG_HOSTAPD_WPA_TESTING
printk(KERN_DEBUG " received");
for (i = 0; i < MICHAEL_MIC_LEN; i++)
printk(" %02x", data[data_len + i]);
printk(" expected");
for (i = 0; i < MICHAEL_MIC_LEN; i++)
printk(" %02x", mic[i]);
printk("\n");
printk(KERN_DEBUG " SA=" MAC_FMT " DA=" MAC_FMT " key",
MAC_ARG(sa), MAC_ARG(da));
for (i = 0; i < 8; i++)
printk(" %02x", key[i]);
printk(" (%d)\n", authenticator);
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
do {
struct ieee80211_hdr *hdr;
union iwreq_data wrqu;
char *buf = kmalloc(128, GFP_ATOMIC);
if (!buf)
break;
/* TODO: needed parameters: count, key type, TSC */
hdr = (struct ieee80211_hdr *) skb->data;
sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
"keyid=%d %scast addr=" MAC_FMT ")",
rx->key->keyidx,
hdr->addr1[0] & 0x01 ? "broad" : "uni",
MAC_ARG(hdr->addr2));
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = strlen(buf);
wireless_send_event(rx->dev, IWEVCUSTOM, &wrqu, buf);
kfree(buf);
} while (0);
if (!rx->local->apdev)
return TXRX_DROP;
ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
ieee80211_msg_michael_mic_failure);
return TXRX_QUEUED;
}
remove_mic:
/* remove Michael MIC from payload */
skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
return TXRX_CONTINUE;
}
static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
struct sk_buff *skb, int test)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_key *key = tx->key;
int hdrlen, len, tailneed;
u16 fc;
u8 *pos;
fc = le16_to_cpu(hdr->frame_control);
hdrlen = ieee80211_get_hdrlen(fc);
len = skb->len - hdrlen;
tailneed = !tx->key->force_sw_encrypt ? 0 : TKIP_ICV_LEN;
if ((skb_headroom(skb) < TKIP_IV_LEN ||
skb_tailroom(skb) < tailneed)) {
I802_DEBUG_INC(tx->local->tx_expand_skb_head);
if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN, tailneed,
GFP_ATOMIC)))
return -1;
}
pos = skb_push(skb, TKIP_IV_LEN);
memmove(pos, pos + TKIP_IV_LEN, hdrlen);
pos += hdrlen;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (test & WPA_TRIGGER_TX_REPLAY)
goto skip_iv_inc;
iv_inc:
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
/* Increase IV for the frame */
key->u.tkip.iv16++;
if (key->u.tkip.iv16 == 0)
key->u.tkip.iv32++;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (test & WPA_TRIGGER_TX_SKIP_SEQ) {
test = 0;
goto iv_inc;
}
skip_iv_inc:
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
if (!tx->key->force_sw_encrypt
#ifdef CONFIG_HOSTAPD_WPA_TESTING
&& !tx->wpa_test
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
) {
u32 flags = tx->local->hw.flags;
hdr = (struct ieee80211_hdr *)skb->data;
/* hwaccel - with preallocated room for IV */
ieee80211_tkip_add_iv(pos, key,
(u8) (key->u.tkip.iv16 >> 8),
(u8) (((key->u.tkip.iv16 >> 8) | 0x20) &
0x7f),
(u8) key->u.tkip.iv16);
if (flags & IEEE80211_HW_TKIP_REQ_PHASE2_KEY)
ieee80211_tkip_gen_rc4key(key, hdr->addr2,
tx->u.tx.control->tkip_key);
else if (flags & IEEE80211_HW_TKIP_REQ_PHASE1_KEY) {
if (key->u.tkip.iv16 == 0 ||
!key->u.tkip.tx_initialized) {
ieee80211_tkip_gen_phase1key(key, hdr->addr2,
(u16 *)tx->u.tx.control->tkip_key);
key->u.tkip.tx_initialized = 1;
tx->u.tx.control->flags |=
IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
} else
tx->u.tx.control->flags &=
~IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
}
tx->u.tx.control->key_idx = tx->key->hw_key_idx;
return 0;
}
/* Add room for ICV */
skb_put(skb, TKIP_ICV_LEN);
hdr = (struct ieee80211_hdr *) skb->data;
ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
key, pos, len, hdr->addr2);
return 0;
}
ieee80211_txrx_result
ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
u16 fc;
struct ieee80211_key *key = tx->key;
struct sk_buff *skb = tx->skb;
int wpa_test = 0, test = 0;
fc = le16_to_cpu(hdr->frame_control);
if (!key || key->alg != ALG_TKIP || !WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;
tx->u.tx.control->icv_len = TKIP_ICV_LEN;
tx->u.tx.control->iv_len = TKIP_IV_LEN;
ieee80211_tx_set_iswep(tx);
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) ||
(!tx->u.tx.unicast &&
tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV)) {
wpa_test = 1;
}
if (tx->sta) {
test = tx->sta->wpa_trigger;
tx->sta->wpa_trigger &=
~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
WPA_TRIGGER_TX_SKIP_SEQ);
} else {
test = tx->local->wpa_trigger;
tx->local->wpa_trigger &=
~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
WPA_TRIGGER_TX_SKIP_SEQ);
}
if (test &
(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
WPA_TRIGGER_TX_SKIP_SEQ)) {
printk(KERN_INFO "%s: WPA testing - TKIP TX packet number "
"%s%s%s%s\n", tx->dev->name,
tx->sta ? "[UNICAST]" : "[MULTICAST]",
test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "",
test & WPA_TRIGGER_TX_REPLAY_FRAG ?
"[REPLAY FRAG]" : "",
test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : "");
}
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
if (!tx->key->force_sw_encrypt &&
!(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) &&
!wpa_test) {
/* hwaccel - with no need for preallocated room for IV/ICV */
tx->u.tx.control->key_idx = tx->key->hw_key_idx;
return TXRX_CONTINUE;
}
if (tkip_encrypt_skb(tx, skb, test) < 0)
return TXRX_DROP;
if (tx->u.tx.extra_frag) {
int i;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (test & WPA_TRIGGER_TX_REPLAY_FRAG)
test |= WPA_TRIGGER_TX_REPLAY;
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
if (tkip_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
< 0)
return TXRX_DROP;
}
}
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) {
printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV "
"for STA " MAC_FMT "\n",
tx->dev->name, MAC_ARG(tx->sta->addr));
tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV;
skb->data[skb->len - 1]++;
} else if (!tx->u.tx.unicast &&
tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) {
printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV "
"for Group Key\n",
tx->dev->name);
tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV;
skb->data[skb->len - 1]++;
}
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
return TXRX_CONTINUE;
}
ieee80211_txrx_result
ieee80211_rx_h_tkip_decrypt(struct ieee80211_txrx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
u16 fc;
int hdrlen, res, hwaccel = 0, wpa_test = 0;
struct ieee80211_key *key = rx->key;
struct sk_buff *skb = rx->skb;
fc = le16_to_cpu(hdr->frame_control);
hdrlen = ieee80211_get_hdrlen(fc);
if (!rx->key || rx->key->alg != ALG_TKIP ||
!(rx->fc & IEEE80211_FCTL_PROTECTED) ||
(rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
return TXRX_CONTINUE;
if (!rx->sta || skb->len - hdrlen < 12)
return TXRX_DROP;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_ICV) {
printk(KERN_INFO "%s: WPA testing - corrupting RX TKIP ICV "
"for STA " MAC_FMT "\n",
rx->dev->name, MAC_ARG(rx->sta->addr));
rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_ICV;
skb->data[skb->len - 1]++;
wpa_test = 1;
}
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
!rx->key->force_sw_encrypt) {
if (!(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) {
/* Hardware takes care of all processing, including
* replay protection, so no need to continue here. */
return TXRX_CONTINUE;
}
/* let TKIP code verify IV, but skip decryption */
hwaccel = 1;
}
res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
key, skb->data + hdrlen,
skb->len - hdrlen, rx->sta->addr,
hwaccel, rx->u.rx.queue);
if (res != TKIP_DECRYPT_OK || wpa_test) {
printk(KERN_DEBUG "%s: TKIP decrypt failed for RX frame from "
MAC_FMT " (res=%d)\n",
rx->dev->name, MAC_ARG(rx->sta->addr), res);
return TXRX_DROP;
}
/* Trim ICV */
skb_trim(skb, skb->len - TKIP_ICV_LEN);
/* Remove IV */
memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen);
skb_pull(skb, TKIP_IV_LEN);
return TXRX_CONTINUE;
}
static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad,
int encrypted)
{
u16 fc;
int a4_included, qos_included;
u8 qos_tid, *fc_pos, *data, *sa, *da;
int len_a;
size_t data_len;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
fc_pos = (u8 *) &hdr->frame_control;
fc = fc_pos[0] ^ (fc_pos[1] << 8);
a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len);
data_len -= CCMP_HDR_LEN + (encrypted ? CCMP_MIC_LEN : 0);
if (qos_tid & 0x80) {
qos_included = 1;
qos_tid &= 0x0f;
} else
qos_included = 0;
/* First block, b_0 */
b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
/* Nonce: QoS Priority | A2 | PN */
b_0[1] = qos_tid;
memcpy(&b_0[2], hdr->addr2, 6);
memcpy(&b_0[8], pn, CCMP_PN_LEN);
/* l(m) */
b_0[14] = (data_len >> 8) & 0xff;
b_0[15] = data_len & 0xff;
/* AAD (extra authenticate-only data) / masked 802.11 header
* FC | A1 | A2 | A3 | SC | [A4] | [QC] */
len_a = a4_included ? 28 : 22;
if (qos_included)
len_a += 2;
aad[0] = 0; /* (len_a >> 8) & 0xff; */
aad[1] = len_a & 0xff;
/* Mask FC: zero subtype b4 b5 b6 */
aad[2] = fc_pos[0] & ~(BIT(4) | BIT(5) | BIT(6));
/* Retry, PwrMgt, MoreData; set Protected */
aad[3] = (fc_pos[1] & ~(BIT(3) | BIT(4) | BIT(5))) | BIT(6);
memcpy(&aad[4], &hdr->addr1, 18);
/* Mask Seq#, leave Frag# */
aad[22] = *((u8 *) &hdr->seq_ctrl) & 0x0f;
aad[23] = 0;
if (a4_included) {
memcpy(&aad[24], hdr->addr4, 6);
aad[30] = 0;
aad[31] = 0;
} else
memset(&aad[24], 0, 8);
if (qos_included) {
u8 *dpos = &aad[a4_included ? 30 : 24];
/* Mask QoS Control field */
dpos[0] = qos_tid;
dpos[1] = 0;
}
}
static inline void ccmp_pn2hdr(u8 *hdr, u8 *pn, int key_id)
{
hdr[0] = pn[5];
hdr[1] = pn[4];
hdr[2] = 0;
hdr[3] = 0x20 | (key_id << 6);
hdr[4] = pn[3];
hdr[5] = pn[2];
hdr[6] = pn[1];
hdr[7] = pn[0];
}
static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr)
{
pn[0] = hdr[7];
pn[1] = hdr[6];
pn[2] = hdr[5];
pn[3] = hdr[4];
pn[4] = hdr[1];
pn[5] = hdr[0];
return (hdr[3] >> 6) & 0x03;
}
static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
struct sk_buff *skb, int test)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_key *key = tx->key;
int hdrlen, len, tailneed;
u16 fc;
u8 *pos, *pn, *b_0, *aad, *scratch;
int i;
scratch = key->u.ccmp.tx_crypto_buf;
b_0 = scratch + 3 * AES_BLOCK_LEN;
aad = scratch + 4 * AES_BLOCK_LEN;
fc = le16_to_cpu(hdr->frame_control);
hdrlen = ieee80211_get_hdrlen(fc);
len = skb->len - hdrlen;
tailneed = !key->force_sw_encrypt ? 0 : CCMP_MIC_LEN;
if ((skb_headroom(skb) < CCMP_HDR_LEN ||
skb_tailroom(skb) < tailneed)) {
I802_DEBUG_INC(tx->local->tx_expand_skb_head);
if (unlikely(pskb_expand_head(skb, CCMP_HDR_LEN, tailneed,
GFP_ATOMIC)))
return -1;
}
pos = skb_push(skb, CCMP_HDR_LEN);
memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
hdr = (struct ieee80211_hdr *) pos;
pos += hdrlen;
/* PN = PN + 1 */
pn = key->u.ccmp.tx_pn;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (test & WPA_TRIGGER_TX_REPLAY)
goto skip_pn_inc;
pn_inc:
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
pn[i]++;
if (pn[i])
break;
}
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (test & WPA_TRIGGER_TX_SKIP_SEQ) {
test = 0;
goto pn_inc;
}
skip_pn_inc:
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
ccmp_pn2hdr(pos, pn, key->keyidx);
if (!key->force_sw_encrypt) {
/* hwaccel - with preallocated room for CCMP header */
tx->u.tx.control->key_idx = key->hw_key_idx;
return 0;
}
pos += CCMP_HDR_LEN;
ccmp_special_blocks(skb, pn, b_0, aad, 0);
ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, b_0, aad, pos, len,
pos, skb_put(skb, CCMP_MIC_LEN));
return 0;
}
ieee80211_txrx_result
ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
struct ieee80211_key *key = tx->key;
u16 fc;
struct sk_buff *skb = tx->skb;
int test = 0;
fc = le16_to_cpu(hdr->frame_control);
if (!key || key->alg != ALG_CCMP || !WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (tx->sta) {
test = tx->sta->wpa_trigger;
tx->sta->wpa_trigger = 0;
} else {
test = tx->local->wpa_trigger;
tx->local->wpa_trigger = 0;
}
if (test &
(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
WPA_TRIGGER_TX_SKIP_SEQ)) {
printk(KERN_INFO "%s: WPA testing - CCMP TX packet number "
"%s%s%s%s\n", tx->dev->name,
tx->sta ? "[UNICAST]" : "[MULTICAST]",
test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "",
test & WPA_TRIGGER_TX_REPLAY_FRAG ?
"[REPLAY FRAG]" : "",
test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : "");
}
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
tx->u.tx.control->icv_len = CCMP_MIC_LEN;
tx->u.tx.control->iv_len = CCMP_HDR_LEN;
ieee80211_tx_set_iswep(tx);
if (!tx->key->force_sw_encrypt &&
!(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) {
/* hwaccel - with no need for preallocated room for CCMP "
* header or MIC fields */
tx->u.tx.control->key_idx = tx->key->hw_key_idx;
return TXRX_CONTINUE;
}
if (ccmp_encrypt_skb(tx, skb, test) < 0)
return TXRX_DROP;
if (tx->u.tx.extra_frag) {
int i;
#ifdef CONFIG_HOSTAPD_WPA_TESTING
if (test & WPA_TRIGGER_TX_REPLAY_FRAG)
test |= WPA_TRIGGER_TX_REPLAY;
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
if (ccmp_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
< 0)
return TXRX_DROP;
}
}
return TXRX_CONTINUE;
}
ieee80211_txrx_result
ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
u16 fc;
int hdrlen;
struct ieee80211_key *key = rx->key;
struct sk_buff *skb = rx->skb;
u8 pn[CCMP_PN_LEN];
int data_len;
fc = le16_to_cpu(hdr->frame_control);
hdrlen = ieee80211_get_hdrlen(fc);
if (!key || key->alg != ALG_CCMP ||
!(rx->fc & IEEE80211_FCTL_PROTECTED) ||
(rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
return TXRX_CONTINUE;
data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
if (!rx->sta || data_len < 0)
return TXRX_DROP;
if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
!key->force_sw_encrypt &&
!(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV))
return TXRX_CONTINUE;
(void) ccmp_hdr2pn(pn, skb->data + hdrlen);
if (memcmp(pn, key->u.ccmp.rx_pn[rx->u.rx.queue], CCMP_PN_LEN) <= 0) {
#ifdef CONFIG_MAC80211_DEBUG
u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue];
printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from "
MAC_FMT " (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
"%02x%02x%02x%02x%02x%02x)\n", rx->dev->name,
MAC_ARG(rx->sta->addr),
pn[0], pn[1], pn[2], pn[3], pn[4], pn[5],
ppn[0], ppn[1], ppn[2], ppn[3], ppn[4], ppn[5]);
#endif /* CONFIG_MAC80211_DEBUG */
key->u.ccmp.replays++;
return TXRX_DROP;
}
if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
!key->force_sw_encrypt) {
/* hwaccel has already decrypted frame and verified MIC */
} else {
u8 *scratch, *b_0, *aad;
scratch = key->u.ccmp.rx_crypto_buf;
b_0 = scratch + 3 * AES_BLOCK_LEN;
aad = scratch + 4 * AES_BLOCK_LEN;
ccmp_special_blocks(skb, pn, b_0, aad, 1);
if (ieee80211_aes_ccm_decrypt(
key->u.ccmp.tfm, scratch, b_0, aad,
skb->data + hdrlen + CCMP_HDR_LEN, data_len,
skb->data + skb->len - CCMP_MIC_LEN,
skb->data + hdrlen + CCMP_HDR_LEN)) {
printk(KERN_DEBUG "%s: CCMP decrypt failed for RX "
"frame from " MAC_FMT "\n", rx->dev->name,
MAC_ARG(rx->sta->addr));
return TXRX_DROP;
}
}
memcpy(key->u.ccmp.rx_pn[rx->u.rx.queue], pn, CCMP_PN_LEN);
/* Remove CCMP header and MIC */
skb_trim(skb, skb->len - CCMP_MIC_LEN);
memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen);
skb_pull(skb, CCMP_HDR_LEN);
return TXRX_CONTINUE;
}

31
package/mac80211/src/mac80211/wpa.h Normal file
View File

@ -0,0 +1,31 @@
/*
* Copyright 2002-2004, Instant802 Networks, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef WPA_H
#define WPA_H
#include <linux/skbuff.h>
#include <linux/types.h>
#include "ieee80211_i.h"
ieee80211_txrx_result
ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx);
ieee80211_txrx_result
ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx);
ieee80211_txrx_result
ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx);
ieee80211_txrx_result
ieee80211_rx_h_tkip_decrypt(struct ieee80211_txrx_data *rx);
ieee80211_txrx_result
ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx);
ieee80211_txrx_result
ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx);
#endif /* WPA_H */

31
package/mac80211/src/wireless/Kconfig Normal file
View File

@ -0,0 +1,31 @@
config CFG80211
tristate "Improved wireless configuration API"
config NL80211
bool "nl80211 new netlink interface support"
depends CFG80211
default y
---help---
This option turns on the new netlink interface
(nl80211) support in cfg80211.
If =n, drivers using mac80211 will be configured via
wireless extension support provided by that subsystem.
If unsure, say Y.
config WIRELESS_EXT
bool "Wireless extensions"
default n
---help---
This option enables the legacy wireless extensions
(wireless network interface configuration via ioctls.)
Wireless extensions will be replaced by cfg80211 and
will be required only by legacy drivers that implement
wireless extension handlers. This option does not
affect the wireless-extension backward compatibility
code in cfg80211.
Say N (if you can) unless you know you need wireless
extensions for external modules.

5
package/mac80211/src/wireless/Makefile Normal file
View File

@ -0,0 +1,5 @@
obj-$(CONFIG_WIRELESS_EXT) += wext.o
obj-$(CONFIG_CFG80211) += cfg80211.o
cfg80211-y += core.o sysfs.o
cfg80211-$(CONFIG_NL80211) += nl80211.o

367
package/mac80211/src/wireless/core.c Normal file
View File

@ -0,0 +1,367 @@
/*
* This is the linux wireless configuration interface.
*
* Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
*/
#include <linux/if.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/nl80211.h>
#include <linux/debugfs.h>
#include <linux/notifier.h>
#include <linux/device.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
#include <net/wireless.h>
#include "nl80211.h"
#include "core.h"
#include "sysfs.h"
/* name for sysfs, %d is appended */
#define PHY_NAME "phy"
MODULE_AUTHOR("Johannes Berg");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("wireless configuration support");
/* RCU might be appropriate here since we usually
* only read the list, and that can happen quite
* often because we need to do it for each command */
LIST_HEAD(cfg80211_drv_list);
DEFINE_MUTEX(cfg80211_drv_mutex);
static int wiphy_counter;
/* for debugfs */
static struct dentry *ieee80211_debugfs_dir;
/* requires cfg80211_drv_mutex to be held! */
static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy)
{
struct cfg80211_registered_device *result = NULL, *drv;
list_for_each_entry(drv, &cfg80211_drv_list, list) {
if (drv->idx == wiphy) {
result = drv;
break;
}
}
return result;
}
/* requires cfg80211_drv_mutex to be held! */
static struct cfg80211_registered_device *
__cfg80211_drv_from_info(struct genl_info *info)
{
int ifindex;
struct cfg80211_registered_device *bywiphy = NULL, *byifidx = NULL;
struct net_device *dev;
int err = -EINVAL;
if (info->attrs[NL80211_ATTR_WIPHY]) {
bywiphy = cfg80211_drv_by_wiphy(
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));
err = -ENODEV;
}
if (info->attrs[NL80211_ATTR_IFINDEX]) {
ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
dev = dev_get_by_index(ifindex);
if (dev) {
if (dev->ieee80211_ptr)
byifidx =
wiphy_to_dev(dev->ieee80211_ptr->wiphy);
dev_put(dev);
}
err = -ENODEV;
}
if (bywiphy && byifidx) {
if (bywiphy != byifidx)
return ERR_PTR(-EINVAL);
else
return bywiphy; /* == byifidx */
}
if (bywiphy)
return bywiphy;
if (byifidx)
return byifidx;
return ERR_PTR(err);
}
struct cfg80211_registered_device *
cfg80211_get_dev_from_info(struct genl_info *info)
{
struct cfg80211_registered_device *drv;
mutex_lock(&cfg80211_drv_mutex);
drv = __cfg80211_drv_from_info(info);
/* if it is not an error we grab the lock on
* it to assure it won't be going away while
* we operate on it */
if (!IS_ERR(drv))
mutex_lock(&drv->mtx);
mutex_unlock(&cfg80211_drv_mutex);
return drv;
}
struct cfg80211_registered_device *
cfg80211_get_dev_from_ifindex(int ifindex)
{
struct cfg80211_registered_device *drv = ERR_PTR(-ENODEV);
struct net_device *dev;
mutex_lock(&cfg80211_drv_mutex);
dev = dev_get_by_index(ifindex);
if (!dev)
goto out;
if (dev->ieee80211_ptr) {
drv = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
mutex_lock(&drv->mtx);
} else
drv = ERR_PTR(-ENODEV);
dev_put(dev);
out:
mutex_unlock(&cfg80211_drv_mutex);
return drv;
}
void cfg80211_put_dev(struct cfg80211_registered_device *drv)
{
BUG_ON(IS_ERR(drv));
mutex_unlock(&drv->mtx);
}
int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
char *newname)
{
int idx, taken = -1, result, digits;
/* prohibit calling the thing phy%d when %d is not its number */
sscanf(newname, PHY_NAME "%d%n", &idx, &taken);
if (taken == strlen(newname) && idx != rdev->idx) {
/* count number of places needed to print idx */
digits = 1;
while (idx /= 10)
digits++;
/*
* deny the name if it is phy<idx> where <idx> is printed
* without leading zeroes. taken == strlen(newname) here
*/
if (taken == strlen(PHY_NAME) + digits)
return -EINVAL;
}
/* this will check for collisions */
result = device_rename(&rdev->wiphy.dev, newname);
if (!result)
return result;
/* TODO: do debugfs rename! */
nl80211_notify_dev_rename(rdev);
return 0;
}
/* exported functions */
struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
{
struct cfg80211_registered_device *drv;
int alloc_size;
alloc_size = sizeof(*drv) + sizeof_priv;
drv = kzalloc(alloc_size, GFP_KERNEL);
if (!drv)
return NULL;
drv->ops = ops;
mutex_lock(&cfg80211_drv_mutex);
drv->idx = wiphy_counter;
/* now increase counter for the next device unless
* it has wrapped previously */
if (wiphy_counter >= 0)
wiphy_counter++;
mutex_unlock(&cfg80211_drv_mutex);
if (unlikely(drv->idx < 0)) {
/* ugh, wrapped! */
kfree(drv);
return NULL;
}
/* give it a proper name */
snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE,
PHY_NAME "%d", drv->idx);
mutex_init(&drv->mtx);
mutex_init(&drv->devlist_mtx);
INIT_LIST_HEAD(&drv->netdev_list);
device_initialize(&drv->wiphy.dev);
drv->wiphy.dev.class = &ieee80211_class;
drv->wiphy.dev.platform_data = drv;
return &drv->wiphy;
}
EXPORT_SYMBOL(wiphy_new);
int wiphy_register(struct wiphy *wiphy)
{
struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
int res;
mutex_lock(&cfg80211_drv_mutex);
res = device_add(&drv->wiphy.dev);
if (res)
goto out_unlock;
list_add(&drv->list, &cfg80211_drv_list);
/* add to debugfs */
drv->wiphy.debugfsdir =
debugfs_create_dir(wiphy_name(&drv->wiphy),
ieee80211_debugfs_dir);
res = 0;
out_unlock:
mutex_unlock(&cfg80211_drv_mutex);
return res;
}
EXPORT_SYMBOL(wiphy_register);
void wiphy_unregister(struct wiphy *wiphy)
{
struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
/* protect the device list */
mutex_lock(&cfg80211_drv_mutex);
BUG_ON(!list_empty(&drv->netdev_list));
/*
* Try to grab drv->mtx. If a command is still in progress,
* hopefully the driver will refuse it since it's tearing
* down the device already. We wait for this command to complete
* before unlinking the item from the list.
* Note: as codified by the BUG_ON above we cannot get here if
* a virtual interface is still associated. Hence, we can only
* get to lock contention here if userspace issues a command
* that identified the hardware by wiphy index.
*/
mutex_lock(&drv->mtx);
/* unlock again before freeing */
mutex_unlock(&drv->mtx);
list_del(&drv->list);
device_del(&drv->wiphy.dev);
debugfs_remove(drv->wiphy.debugfsdir);
mutex_unlock(&cfg80211_drv_mutex);
}
EXPORT_SYMBOL(wiphy_unregister);
void cfg80211_dev_free(struct cfg80211_registered_device *drv)
{
mutex_destroy(&drv->mtx);
mutex_destroy(&drv->devlist_mtx);
kfree(drv);
}
void wiphy_free(struct wiphy *wiphy)
{
put_device(&wiphy->dev);
}
EXPORT_SYMBOL(wiphy_free);
static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
unsigned long state,
void *ndev)
{
struct net_device *dev = ndev;
struct cfg80211_registered_device *rdev;
if (!dev->ieee80211_ptr)
return 0;
rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
switch (state) {
case NETDEV_REGISTER:
mutex_lock(&rdev->devlist_mtx);
list_add(&dev->ieee80211_ptr->list, &rdev->netdev_list);
if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
"phy80211")) {
printk(KERN_ERR "wireless: failed to add phy80211 "
"symlink to netdev!\n");
}
dev->ieee80211_ptr->netdev = dev;
mutex_unlock(&rdev->devlist_mtx);
break;
case NETDEV_UNREGISTER:
mutex_lock(&rdev->devlist_mtx);
if (!list_empty(&dev->ieee80211_ptr->list)) {
sysfs_remove_link(&dev->dev.kobj, "phy80211");
list_del_init(&dev->ieee80211_ptr->list);
}
mutex_unlock(&rdev->devlist_mtx);
break;
}
return 0;
}
static struct notifier_block cfg80211_netdev_notifier = {
.notifier_call = cfg80211_netdev_notifier_call,
};
static int cfg80211_init(void)
{
int err = wiphy_sysfs_init();
if (err)
goto out_fail_sysfs;
err = register_netdevice_notifier(&cfg80211_netdev_notifier);
if (err)
goto out_fail_notifier;
err = nl80211_init();
if (err)
goto out_fail_nl80211;
ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
return 0;
out_fail_nl80211:
unregister_netdevice_notifier(&cfg80211_netdev_notifier);
out_fail_notifier:
wiphy_sysfs_exit();
out_fail_sysfs:
return err;
}
module_init(cfg80211_init);
static void cfg80211_exit(void)
{
debugfs_remove(ieee80211_debugfs_dir);
nl80211_exit();
unregister_netdevice_notifier(&cfg80211_netdev_notifier);
wiphy_sysfs_exit();
}
module_exit(cfg80211_exit);

81
package/mac80211/src/wireless/core.h Normal file
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@ -0,0 +1,81 @@
/*
* Wireless configuration interface internals.
*
* Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
*/
#ifndef __NET_WIRELESS_CORE_H
#define __NET_WIRELESS_CORE_H
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <net/genetlink.h>
#include <net/wireless.h>
#include <net/cfg80211.h>
struct cfg80211_registered_device {
struct cfg80211_ops *ops;
struct list_head list;
/* we hold this mutex during any call so that
* we cannot do multiple calls at once, and also
* to avoid the deregister call to proceed while
* any call is in progress */
struct mutex mtx;
/* wiphy index, internal only */
int idx;
/* associate netdev list */
struct mutex devlist_mtx;
struct list_head netdev_list;
/* must be last because of the way we do wiphy_priv(),
* and it should at least be aligned to NETDEV_ALIGN */
struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
};
static inline
struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
{
BUG_ON(!wiphy);
return container_of(wiphy, struct cfg80211_registered_device, wiphy);
}
extern struct mutex cfg80211_drv_mutex;
extern struct list_head cfg80211_drv_list;
/*
* This function returns a pointer to the driver
* that the genl_info item that is passed refers to.
* If successful, it returns non-NULL and also locks
* the driver's mutex!
*
* This means that you need to call cfg80211_put_dev()
* before being allowed to acquire &cfg80211_drv_mutex!
*
* This is necessary because we need to lock the global
* mutex to get an item off the list safely, and then
* we lock the drv mutex so it doesn't go away under us.
*
* We don't want to keep cfg80211_drv_mutex locked
* for all the time in order to allow requests on
* other interfaces to go through at the same time.
*
* The result of this can be a PTR_ERR and hence must
* be checked with IS_ERR() for errors.
*/
extern struct cfg80211_registered_device *
cfg80211_get_dev_from_info(struct genl_info *info);
/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
extern struct cfg80211_registered_device *
cfg80211_get_dev_from_ifindex(int ifindex);
extern void cfg80211_put_dev(struct cfg80211_registered_device *drv);
/* free object */
extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
char *newname);
#endif /* __NET_WIRELESS_CORE_H */

994
package/mac80211/src/wireless/nl80211.c Normal file
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@ -0,0 +1,994 @@
/*
* This is the new netlink-based wireless configuration interface.
*
* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
*/
#include <linux/if.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/if_ether.h>
#include <linux/ieee80211.h>
#include <linux/nl80211.h>
#include <linux/rtnetlink.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
#include "core.h"
#include "nl80211.h"
/* the netlink family */
static struct genl_family nl80211_fam = {
.id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
.name = "nl80211", /* have users key off the name instead */
.hdrsize = 0, /* no private header */
.version = 1, /* no particular meaning now */
.maxattr = NL80211_ATTR_MAX,
};
/* internal helper: validate an information element attribute */
static int check_information_element(struct nlattr *nla)
{
int len = nla_len(nla);
u8 *data = nla_data(nla);
int elementlen;
while (len >= 2) {
/* 1 byte ID, 1 byte len, `len' bytes data */
elementlen = *(data+1) + 2;
data += elementlen;
len -= elementlen;
}
return len ? -EINVAL : 0;
}
/* internal helper: get drv and dev */
static int get_drv_dev_by_info_ifindex(struct genl_info *info,
struct cfg80211_registered_device **drv,
struct net_device **dev)
{
int ifindex;
if (!info->attrs[NL80211_ATTR_IFINDEX])
return -EINVAL;
ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
*dev = dev_get_by_index(ifindex);
if (!dev)
return -ENODEV;
*drv = cfg80211_get_dev_from_ifindex(ifindex);
if (IS_ERR(*drv)) {
dev_put(*dev);
return PTR_ERR(*drv);
}
return 0;
}
/* policy for the attributes */
static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
[NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
[NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
.len = BUS_ID_SIZE-1 },
[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
[NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
[NL80211_ATTR_SSID] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_SSID_LEN },
[NL80211_ATTR_CHANNEL] = { .type = NLA_U32 },
[NL80211_ATTR_PHYMODE] = { .type = NLA_U32 },
[NL80211_ATTR_CHANNEL_LIST] = { .type = NLA_NESTED },
[NL80211_ATTR_BSS_LIST] = { .type = NLA_NESTED },
[NL80211_ATTR_BSSTYPE] = { .type = NLA_U32 },
[NL80211_ATTR_BEACON_PERIOD] = { .type = NLA_U32 },
[NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
[NL80211_ATTR_TIMESTAMP] = { .type = NLA_U64 },
[NL80211_ATTR_IE] = { .type = NLA_BINARY, .len = NL80211_MAX_IE_LEN },
[NL80211_ATTR_AUTH_ALGORITHM] = { .type = NLA_U32 },
[NL80211_ATTR_TIMEOUT_TU] = { .type = NLA_U32 },
[NL80211_ATTR_REASON_CODE] = { .type = NLA_U32 },
[NL80211_ATTR_ASSOCIATION_ID] = { .type = NLA_U16 },
[NL80211_ATTR_DEAUTHENTICATED] = { .type = NLA_FLAG },
[NL80211_ATTR_RX_SENSITIVITY] = { .type = NLA_U32 },
[NL80211_ATTR_TRANSMIT_POWER] = { .type = NLA_U32 },
[NL80211_ATTR_FRAG_THRESHOLD] = { .type = NLA_U32 },
[NL80211_ATTR_FLAG_SCAN_ACTIVE] = { .type = NLA_FLAG },
[NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY },
[NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY },
[NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
.len = WLAN_MAX_KEY_LEN },
[NL80211_ATTR_KEY_ID] = { .type = NLA_U32 },
[NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
[NL80211_ATTR_MAC] = { .len = ETH_ALEN },
[NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
};
/* netlink command implementations */
#define CHECK_CMD(ptr, cmd) \
if (drv->ops->ptr) \
NLA_PUT_FLAG(msg, NL80211_CMD_##cmd);
static int nl80211_get_cmdlist(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
struct sk_buff *msg;
void *hdr;
int err;
struct nlattr *start;
drv = cfg80211_get_dev_from_info(info);
if (IS_ERR(drv))
return PTR_ERR(drv);
hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_NEW_CMDLIST);
if (IS_ERR(hdr)) {
err = PTR_ERR(hdr);
goto put_drv;
}
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, drv->idx);
start = nla_nest_start(msg, NL80211_ATTR_CMDS);
if (!start)
goto nla_put_failure;
/* unconditionally allow some common commands we handle centrally
* or where we require the implementation */
NLA_PUT_FLAG(msg, NL80211_CMD_GET_CMDLIST);
NLA_PUT_FLAG(msg, NL80211_CMD_GET_WIPHYS);
NLA_PUT_FLAG(msg, NL80211_CMD_GET_INTERFACES);
NLA_PUT_FLAG(msg, NL80211_CMD_RENAME_WIPHY);
CHECK_CMD(add_virtual_intf, ADD_VIRTUAL_INTERFACE);
CHECK_CMD(del_virtual_intf, DEL_VIRTUAL_INTERFACE);
CHECK_CMD(associate, ASSOCIATE);
CHECK_CMD(disassociate, DISASSOCIATE);
CHECK_CMD(deauth, DEAUTH);
CHECK_CMD(initiate_scan, INITIATE_SCAN);
CHECK_CMD(get_association, GET_ASSOCIATION);
CHECK_CMD(get_auth_list, GET_AUTH_LIST);
CHECK_CMD(add_key, ADD_KEY);
CHECK_CMD(del_key, DEL_KEY);
nla_nest_end(msg, start);
genlmsg_end(msg, hdr);
err = genlmsg_unicast(msg, info->snd_pid);
goto put_drv;
nla_put_failure:
err = -ENOBUFS;
nlmsg_free(msg);
put_drv:
cfg80211_put_dev(drv);
return err;
}
#undef CHECK_CMD
static int nl80211_get_wiphys(struct sk_buff *skb, struct genl_info *info)
{
struct sk_buff *msg;
void *hdr;
struct nlattr *start, *indexstart;
struct cfg80211_registered_device *drv;
int idx = 1;
hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_NEW_WIPHYS);
if (IS_ERR(hdr))
return PTR_ERR(hdr);
start = nla_nest_start(msg, NL80211_ATTR_WIPHY_LIST);
if (!start)
goto nla_outer_nest_failure;
mutex_lock(&cfg80211_drv_mutex);
list_for_each_entry(drv, &cfg80211_drv_list, list) {
indexstart = nla_nest_start(msg, idx++);
if (!indexstart)
goto nla_put_failure;
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, drv->idx);
nla_nest_end(msg, indexstart);
}
mutex_unlock(&cfg80211_drv_mutex);
nla_nest_end(msg, start);
genlmsg_end(msg, hdr);
return genlmsg_unicast(msg, info->snd_pid);
nla_put_failure:
mutex_unlock(&cfg80211_drv_mutex);
nla_outer_nest_failure:
nlmsg_free(msg);
return -ENOBUFS;
}
static int addifidx(struct net_device *dev, struct sk_buff *skb, int *idx)
{
int err = -ENOBUFS;
struct nlattr *start;
dev_hold(dev);
start = nla_nest_start(skb, *idx++);
if (!start)
goto nla_put_failure;
NLA_PUT_U32(skb, NL80211_ATTR_IFINDEX, dev->ifindex);
NLA_PUT_STRING(skb, NL80211_ATTR_IFNAME, dev->name);
nla_nest_end(skb, start);
err = 0;
nla_put_failure:
dev_put(dev);
return err;
}
static int nl80211_get_intfs(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
struct sk_buff *msg;
void *hdr;
int err, array_idx;
struct nlattr *start;
struct wireless_dev *wdev;
drv = cfg80211_get_dev_from_info(info);
if (IS_ERR(drv))
return PTR_ERR(drv);
hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_NEW_INTERFACES);
if (IS_ERR(hdr)) {
err = PTR_ERR(hdr);
goto put_drv;
}
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, drv->idx);
start = nla_nest_start(msg, NL80211_ATTR_INTERFACE_LIST);
if (!start) {
err = -ENOBUFS;
goto msg_free;
}
array_idx = 1;
err = 0;
mutex_lock(&drv->devlist_mtx);
list_for_each_entry(wdev, &drv->netdev_list, list) {
err = addifidx(wdev->netdev, msg, &array_idx);
if (err)
break;
}
mutex_unlock(&drv->devlist_mtx);
if (err)
goto msg_free;
nla_nest_end(msg, start);
genlmsg_end(msg, hdr);
err = genlmsg_unicast(msg, info->snd_pid);
goto put_drv;
nla_put_failure:
err = -ENOBUFS;
msg_free:
nlmsg_free(msg);
put_drv:
cfg80211_put_dev(drv);
return err;
}
static int nl80211_add_virt_intf(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int err;
unsigned int type = NL80211_IFTYPE_UNSPECIFIED;
if (!info->attrs[NL80211_ATTR_IFNAME])
return -EINVAL;
if (info->attrs[NL80211_ATTR_IFTYPE]) {
type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
if (type > NL80211_IFTYPE_MAX)
return -EINVAL;
}
drv = cfg80211_get_dev_from_info(info);
if (IS_ERR(drv))
return PTR_ERR(drv);
if (!drv->ops->add_virtual_intf) {
err = -EOPNOTSUPP;
goto unlock;
}
rtnl_lock();
err = drv->ops->add_virtual_intf(&drv->wiphy,
nla_data(info->attrs[NL80211_ATTR_IFNAME]), type);
rtnl_unlock();
unlock:
cfg80211_put_dev(drv);
return err;
}
static int nl80211_del_virt_intf(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int ifindex, err;
struct net_device *dev;
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
if (err)
return err;
ifindex = dev->ifindex;
dev_put(dev);
if (!drv->ops->del_virtual_intf) {
err = -EOPNOTSUPP;
goto out;
}
rtnl_lock();
err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
rtnl_unlock();
out:
cfg80211_put_dev(drv);
return err;
}
static int nl80211_change_virt_intf(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int err, ifindex;
unsigned int type;
struct net_device *dev;
if (info->attrs[NL80211_ATTR_IFTYPE]) {
type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
if (type > NL80211_IFTYPE_MAX)
return -EINVAL;
} else
return -EINVAL;
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
if (err)
return err;
ifindex = dev->ifindex;
dev_put(dev);
if (!drv->ops->change_virtual_intf) {
err = -EOPNOTSUPP;
goto unlock;
}
rtnl_lock();
err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, type);
rtnl_unlock();
unlock:
cfg80211_put_dev(drv);
return err;
}
static int nl80211_get_association(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int err;
struct net_device *dev;
struct sk_buff *msg;
void *hdr;
u8 bssid[ETH_ALEN];
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
if (err)
return err;
if (!drv->ops->get_association) {
err = -EOPNOTSUPP;
goto out_put_drv;
}
rtnl_lock();
err = drv->ops->get_association(&drv->wiphy, dev, bssid);
rtnl_unlock();
if (err < 0)
goto out_put_drv;
hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_ASSOCIATION_CHANGED);
if (IS_ERR(hdr)) {
err = PTR_ERR(hdr);
goto out_put_drv;
}
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
if (err == 1)
NLA_PUT(msg, NL80211_ATTR_BSSID, ETH_ALEN, bssid);
genlmsg_end(msg, hdr);
err = genlmsg_unicast(msg, info->snd_pid);
goto out_put_drv;
nla_put_failure:
err = -ENOBUFS;
nlmsg_free(msg);
out_put_drv:
cfg80211_put_dev(drv);
dev_put(dev);
return err;
}
static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int err;
struct net_device *dev;
struct association_params assoc_params;
memset(&assoc_params, 0, sizeof(assoc_params));
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
if (err)
return err;
if (!drv->ops->associate) {
err = -EOPNOTSUPP;
goto out;
}
if (!info->attrs[NL80211_ATTR_SSID])
return -EINVAL;
assoc_params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
assoc_params.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
if (info->attrs[NL80211_ATTR_BSSID])
assoc_params.bssid = nla_data(info->attrs[NL80211_ATTR_BSSID]);
if (info->attrs[NL80211_ATTR_IE]) {
err = check_information_element(info->attrs[NL80211_ATTR_IE]);
if (err)
goto out;
assoc_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
assoc_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
}
if (info->attrs[NL80211_ATTR_TIMEOUT_TU]) {
assoc_params.timeout =
nla_get_u32(info->attrs[NL80211_ATTR_TIMEOUT_TU]);
assoc_params.valid |= ASSOC_PARAMS_TIMEOUT;
}
rtnl_lock();
err = drv->ops->associate(&drv->wiphy, dev, &assoc_params);
rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
return err;
}
static int nl80211_disassoc_deauth(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int err;
struct net_device *dev;
int (*act)(struct wiphy *wiphy, struct net_device *dev);
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
if (err)
return err;
switch (info->genlhdr->cmd) {
case NL80211_CMD_DISASSOCIATE:
act = drv->ops->disassociate;
break;
case NL80211_CMD_DEAUTH:
act = drv->ops->deauth;
break;
default:
act = NULL;
}
if (!act) {
err = -EOPNOTSUPP;
goto out;
}
rtnl_lock();
err = act(&drv->wiphy, dev);
rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
return err;
}
struct add_cb_data {
int idx;
struct sk_buff *skb;
};
static int add_bssid(void *data, u8 *bssid)
{
struct add_cb_data *cb = data;
int err = -ENOBUFS;
struct nlattr *start;
start = nla_nest_start(cb->skb, cb->idx++);
if (!start)
goto nla_put_failure;
NLA_PUT(cb->skb, NL80211_ATTR_BSSID, ETH_ALEN, bssid);
nla_nest_end(cb->skb, start);
err = 0;
nla_put_failure:
return err;
}
static int nl80211_get_auth_list(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
struct net_device *dev;
struct sk_buff *msg;
void *hdr;
int err;
struct nlattr *start;
struct add_cb_data cb;
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
if (err)
return err;
if (!drv->ops->get_auth_list) {
err = -EOPNOTSUPP;
goto put_drv;
}
hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_NEW_AUTH_LIST);
if (IS_ERR(hdr)) {
err = PTR_ERR(hdr);
goto put_drv;
}
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
start = nla_nest_start(msg, NL80211_ATTR_BSS_LIST);
if (!start) {
err = -ENOBUFS;
goto msg_free;
}
cb.skb = msg;
cb.idx = 1;
rtnl_lock();
err = drv->ops->get_auth_list(&drv->wiphy, dev, &cb, add_bssid);
rtnl_unlock();
if (err)
goto msg_free;
nla_nest_end(msg, start);
genlmsg_end(msg, hdr);
err = genlmsg_unicast(msg, info->snd_pid);
goto put_drv;
nla_put_failure:
err = -ENOBUFS;
msg_free:
nlmsg_free(msg);
put_drv:
cfg80211_put_dev(drv);
dev_put(dev);
return err;
}
static int nl80211_initiate_scan(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int err;
struct net_device *dev;
struct scan_params params;
struct scan_channel *channels = NULL;
int count = -1;
if (info->attrs[NL80211_ATTR_PHYMODE])
params.phymode = nla_get_u32(info->attrs[NL80211_ATTR_PHYMODE]);
if (params.phymode > NL80211_PHYMODE_MAX)
return -EINVAL;
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
if (err)
return err;
if (!drv->ops->initiate_scan) {
err = -EOPNOTSUPP;
goto out;
}
params.active = nla_get_flag(info->attrs[NL80211_ATTR_FLAG_SCAN_ACTIVE]);
if (info->attrs[NL80211_ATTR_CHANNEL_LIST]) {
struct nlattr *attr = info->attrs[NL80211_ATTR_CHANNEL_LIST];
struct nlattr *nla;
int rem;
struct nlattr **tb;
/* let's count first */
count = 0;
nla_for_each_attr(nla, nla_data(attr), nla_len(attr), rem)
count++;
if (count == 0) {
/* assume we should actually scan all channels,
* scanning no channels make no sense */
count = -1;
goto done_channels;
}
if (count > NL80211_MAX_CHANNEL_LIST_ITEM) {
err = -EINVAL;
goto out;
}
channels = kmalloc(count * sizeof(struct scan_channel),
GFP_KERNEL);
tb = kmalloc((NL80211_ATTR_MAX+1) * sizeof(struct nlattr),
GFP_KERNEL);
count = 0;
nla_for_each_attr(nla, nla_data(attr), nla_len(attr), rem) {
err = nla_parse(tb, NL80211_ATTR_MAX, nla_data(nla),
nla_len(nla), nl80211_policy);
if (err || !tb[NL80211_ATTR_CHANNEL]) {
err = -EINVAL;
kfree(tb);
kfree(channels);
goto out;
}
channels[count].phymode = params.phymode;
if (tb[NL80211_ATTR_PHYMODE])
channels[count].phymode =
nla_get_u32(tb[NL80211_ATTR_PHYMODE]);
if (channels[count].phymode > NL80211_PHYMODE_MAX) {
err = -EINVAL;
kfree(tb);
kfree(channels);
goto out;
}
channels[count].channel =
nla_get_u32(tb[NL80211_ATTR_CHANNEL]);
channels[count].active =
nla_get_flag(tb[NL80211_ATTR_FLAG_SCAN_ACTIVE]);
count++;
}
kfree(tb);
}
done_channels:
params.channels = channels;
params.n_channels = count;
rtnl_lock();
err = drv->ops->initiate_scan(&drv->wiphy, dev, &params);
rtnl_unlock();
kfree(channels);
out:
cfg80211_put_dev(drv);
dev_put(dev);
return err;
}
static int nl80211_rename_wiphy(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev;
int result;
if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
return -EINVAL;
rdev = cfg80211_get_dev_from_info(info);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
cfg80211_put_dev(rdev);
return result;
}
static int nl80211_key_cmd(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int err, del;
struct net_device *dev;
struct key_params params;
int (*act)(struct wiphy *wiphy, struct net_device *dev,
struct key_params *params);
memset(&params, 0, sizeof(params));
if (!info->attrs[NL80211_ATTR_KEY_TYPE])
return -EINVAL;
if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
return -EINVAL;
params.key_type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
if (params.key_type > NL80211_KEYTYPE_MAX)
return -EINVAL;
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
if (err)
return err;
switch (info->genlhdr->cmd) {
case NL80211_CMD_ADD_KEY:
act = drv->ops->add_key;
del = 0;
break;
case NL80211_CMD_DEL_KEY:
act = drv->ops->del_key;
del = 1;
break;
default:
act = NULL;
}
if (!act) {
err = -EOPNOTSUPP;
goto out;
}
if (info->attrs[NL80211_ATTR_KEY_DATA]) {
params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
}
if (info->attrs[NL80211_ATTR_KEY_ID]) {
params.key_id = nla_get_u32(info->attrs[NL80211_ATTR_KEY_ID]);
} else {
params.key_id = -1;
}
params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
if (info->attrs[NL80211_ATTR_MAC]) {
params.macaddress = nla_data(info->attrs[NL80211_ATTR_MAC]);
} else {
params.macaddress = NULL;
}
rtnl_lock();
err = act(&drv->wiphy, dev, &params);
rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
return err;
}
static struct genl_ops nl80211_ops[] = {
{
.cmd = NL80211_CMD_RENAME_WIPHY,
.doit = nl80211_rename_wiphy,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_GET_CMDLIST,
.doit = nl80211_get_cmdlist,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
},
{
.cmd = NL80211_CMD_ADD_VIRTUAL_INTERFACE,
.doit = nl80211_add_virt_intf,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_DEL_VIRTUAL_INTERFACE,
.doit = nl80211_del_virt_intf,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_CHANGE_VIRTUAL_INTERFACE,
.doit = nl80211_change_virt_intf,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_GET_WIPHYS,
.doit = nl80211_get_wiphys,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
},
{
.cmd = NL80211_CMD_GET_INTERFACES,
.doit = nl80211_get_intfs,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
},
{
.cmd = NL80211_CMD_INITIATE_SCAN,
.doit = nl80211_initiate_scan,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_GET_ASSOCIATION,
.doit = nl80211_get_association,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
},
{
.cmd = NL80211_CMD_ASSOCIATE,
.doit = nl80211_associate,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_DISASSOCIATE,
.doit = nl80211_disassoc_deauth,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_DEAUTH,
.doit = nl80211_disassoc_deauth,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_GET_AUTH_LIST,
.doit = nl80211_get_auth_list,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
},
/*
{
.cmd = NL80211_CMD_AP_SET_BEACON,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_AP_ADD_STA,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_AP_UPDATE_STA,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_AP_GET_STA_INFO,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_AP_SET_RATESETS,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
*/
{
.cmd = NL80211_CMD_ADD_KEY,
.doit = nl80211_key_cmd,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NL80211_CMD_DEL_KEY,
.doit = nl80211_key_cmd,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
};
/* exported functions */
void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, int flags, u8 cmd)
{
/* since there is no private header just add the generic one */
return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
}
EXPORT_SYMBOL_GPL(nl80211hdr_put);
void *nl80211msg_new(struct sk_buff **skb, u32 pid, u32 seq, int flags, u8 cmd)
{
void *hdr;
*skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
if (!*skb)
return ERR_PTR(-ENOBUFS);
hdr = nl80211hdr_put(*skb, pid, seq, flags, cmd);
if (!hdr) {
nlmsg_free(*skb);
return ERR_PTR(-ENOBUFS);
}
return hdr;
}
EXPORT_SYMBOL_GPL(nl80211msg_new);
/* notification functions */
void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
{
struct sk_buff *msg;
void *hdr;
hdr = nl80211msg_new(&msg, 0, 0, 0, NL80211_CMD_WIPHY_NEWNAME);
if (IS_ERR(hdr))
return;
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->idx);
NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&rdev->wiphy));
genlmsg_end(msg, hdr);
genlmsg_multicast(msg, 0, NL80211_GROUP_CONFIG, GFP_KERNEL);
return;
nla_put_failure:
nlmsg_free(msg);
}
/* initialisation/exit functions */
int nl80211_init(void)
{
int err, i;
err = genl_register_family(&nl80211_fam);
if (err)
return err;
for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
if (err)
goto err_out;
}
return 0;
err_out:
genl_unregister_family(&nl80211_fam);
return err;
}
void nl80211_exit(void)
{
genl_unregister_family(&nl80211_fam);
}

24
package/mac80211/src/wireless/nl80211.h Normal file
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@ -0,0 +1,24 @@
#ifndef __NET_WIRELESS_NL80211_H
#define __NET_WIRELESS_NL80211_H
#include "core.h"
#ifdef CONFIG_NL80211
extern int nl80211_init(void);
extern void nl80211_exit(void);
extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
#else
static inline int nl80211_init(void)
{
return 0;
}
static inline void nl80211_exit(void)
{
}
static inline void nl80211_notify_dev_rename(
struct cfg80211_registered_device *rdev)
{
}
#endif /* CONFIG_NL80211 */
#endif /* __NET_WIRELESS_NL80211_H */

130
package/mac80211/src/wireless/sysfs.c Normal file
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/*
* This file provides /sys/class/ieee80211/<wiphy name>/
* and some default attributes.
*
* Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
*
* This file is GPLv2 as found in COPYING.
*/
#include <linux/device.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/nl80211.h>
#include <linux/rtnetlink.h>
#include <net/cfg80211.h>
#include "sysfs.h"
#include "core.h"
static inline struct cfg80211_registered_device *dev_to_rdev(
struct device *dev)
{
return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
}
static ssize_t _show_index(struct device *dev, struct device_attribute *attr,
char *buf)
{
return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx);
}
static ssize_t _show_permaddr(struct device *dev,
struct device_attribute *attr,
char *buf)
{
unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
}
static ssize_t _store_add_iface(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
int res;
if (len > IFNAMSIZ)
return -EINVAL;
if (!rdev->ops->add_virtual_intf)
return -ENOSYS;
rtnl_lock();
res = rdev->ops->add_virtual_intf(&rdev->wiphy, (char*)buf,
NL80211_IFTYPE_UNSPECIFIED);
rtnl_unlock();
return res ? res : len;
}
static ssize_t _store_remove_iface(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
int res, ifidx;
struct net_device *netdev;
if (len > IFNAMSIZ)
return -EINVAL;
if (!rdev->ops->del_virtual_intf)
return -ENOSYS;
netdev = dev_get_by_name(buf);
if (!netdev)
return -ENODEV;
ifidx = netdev->ifindex;
dev_put(netdev);
rtnl_lock();
res = rdev->ops->del_virtual_intf(&rdev->wiphy, ifidx);
rtnl_unlock();
return res ? res : len;
}
static struct device_attribute ieee80211_dev_attrs[] = {
__ATTR(index, S_IRUGO, _show_index, NULL),
__ATTR(macaddress, S_IRUGO, _show_permaddr, NULL),
__ATTR(add_iface, S_IWUGO, NULL, _store_add_iface),
__ATTR(remove_iface, S_IWUGO, NULL, _store_remove_iface),
{}
};
static void wiphy_dev_release(struct device *dev)
{
struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
cfg80211_dev_free(rdev);
}
static int wiphy_uevent(struct device *dev, char **envp,
int num_envp, char *buf, int size)
{
/* TODO, we probably need stuff here */
return 0;
}
struct class ieee80211_class = {
.name = "ieee80211",
.owner = THIS_MODULE,
.dev_release = wiphy_dev_release,
.dev_attrs = ieee80211_dev_attrs,
#ifdef CONFIG_HOTPLUG
.dev_uevent = wiphy_uevent,
#endif
};
int wiphy_sysfs_init(void)
{
return class_register(&ieee80211_class);
}
void wiphy_sysfs_exit(void)
{
class_unregister(&ieee80211_class);
}

9
package/mac80211/src/wireless/sysfs.h Normal file
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@ -0,0 +1,9 @@
#ifndef __WIRELESS_SYSFS_H
#define __WIRELESS_SYSFS_H
extern int wiphy_sysfs_init(void);
extern void wiphy_sysfs_exit(void);
extern struct class ieee80211_class;
#endif /* __WIRELESS_SYSFS_H */

1509
package/mac80211/src/wireless/wext.c Normal file
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