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add d80211 from a recent wireless-dev checkout

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5939 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2006-12-30 18:47:07 +00:00
parent f5b0956604
commit 261aac9420
38 changed files with 20054 additions and 0 deletions
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52
package/d80211/Makefile Normal file
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#
# Copyright (C) 2006 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
# $Id:$
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
PKG_NAME:=kmod-d80211
PKG_VERSION:=20061230
PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(PKG_NAME)
include $(INCLUDE_DIR)/package.mk
define KernelPackage/d80211
SUBMENU:=Wireless Drivers
DEPENDS:=@LINUX_2_6 kmod-crypto
TITLE:=DeviceScape 802.11 stack
DESCRIPTION:=DeviceScape 802.11 stack
VERSION:=$(LINUX_VERSION)+$(PKG_VERSION)-$(BOARD)-$(LINUX_RELEASE)
FILES:=$(PKG_BUILD_DIR)/*.ko
AUTOLOAD:=$(call AutoLoad,20,d80211 rc80211_simple)
endef
define Build/Prepare
mkdir -p $(PKG_BUILD_DIR)
$(CP) ./src/* $(PKG_BUILD_DIR)/
endef
define Build/Compile
$(MAKE) -C "$(LINUX_DIR)" \
CROSS_COMPILE="$(TARGET_CROSS)" \
ARCH="$(LINUX_KARCH)" \
SUBDIRS="$(PKG_BUILD_DIR)" \
EXTRA_CFLAGS="-I$(PKG_BUILD_DIR)/include" \
modules
endef
define Build/InstallDev
mkdir -p $(STAGING_DIR)/usr/include/net
$(CP) ./src/include/net/* $(STAGING_DIR)/usr/include/net/
endef
define Build/UninstallDev
rm -f $(STAGING_DIR)/usr/include/net/d80211*
endef
$(eval $(call KernelPackage,d80211))

69
package/d80211/src/Kconfig Normal file
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config D80211
tristate "Generic IEEE 802.11 Networking Stack (dscape)"
select CRYPTO
select CRYPTO_ARC4
select CRYPTO_AES
---help---
This option enables the hardware independent IEEE 802.11
networking stack.
config D80211_LEDS
bool "Enable LED triggers"
depends on D80211
select NEW_LEDS
select LEDS_TRIGGERS
---help---
This option enables a few LED triggers for different
packet receive/transmit events.
config D80211_DEBUG
bool "Enable debugging output"
depends on D80211
---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 D80211_VERBOSE_DEBUG
bool "Verbose debugging output"
depends on D80211_DEBUG
config D80211_LOWTX_FRAME_DUMP
bool "Debug frame dumping"
depends on D80211_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 D80211_DEBUG
config D80211_DEBUG_COUNTERS
bool "Extra statistics for TX/RX debugging"
depends on D80211_DEBUG
config HOSTAPD_WPA_TESTING
bool "Support for TKIP countermeasures testing"
depends on D80211_DEBUG
config D80211_IBSS_DEBUG
bool "Support for IBSS testing"
depends on D80211_DEBUG
---help---
Say Y here if you intend to debug the IBSS code.
config D80211_VERBOSE_PS_DEBUG
bool "Verbose powersave mode debugging"
depends on D80211_DEBUG
---help---
Say Y here to print out verbose powersave
mode debug messages.

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package/d80211/src/Makefile Normal file
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obj-m += 80211.o rc80211_simple.o
80211-objs := \
ieee80211.o \
ieee80211_ioctl.o \
sta_info.o \
wep.o \
wpa.o \
ieee80211_scan.o \
ieee80211_sta.o \
ieee80211_dev.o \
ieee80211_iface.o \
ieee80211_rate.o \
ieee80211_sysfs.o \
ieee80211_sysfs_sta.o \
michael.o \
tkip.o \
aes_ccm.o \
wme.o \
fifo_qdisc.o

155
package/d80211/src/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/d80211.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);
}

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package/d80211/src/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/d80211/src/fifo_qdisc.c Normal file
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/*
* 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.
*
* If building without CONFIG_NET_SCHED we need a simple
* fifo qdisc to install by default as the sub-qdisc.
* This is a simple replacement for sch_fifo.
*/
#include <linux/skbuff.h>
#include <net/pkt_sched.h>
#include <net/d80211.h>
#include "ieee80211_i.h"
#include "wme.h"
static int pfifo_enqueue(struct sk_buff *skb, struct Qdisc* qd)
{
struct sk_buff_head *q = qdisc_priv(qd);
if (skb_queue_len(q) > qd->dev->tx_queue_len) {
qd->qstats.drops++;
kfree_skb(skb);
return NET_XMIT_DROP;
}
skb_queue_tail(q, skb);
qd->q.qlen++;
qd->bstats.bytes += skb->len;
qd->bstats.packets++;
return NET_XMIT_SUCCESS;
}
static int pfifo_requeue(struct sk_buff *skb, struct Qdisc* qd)
{
struct sk_buff_head *q = qdisc_priv(qd);
skb_queue_head(q, skb);
qd->q.qlen++;
qd->bstats.bytes += skb->len;
qd->bstats.packets++;
return NET_XMIT_SUCCESS;
}
static struct sk_buff *pfifo_dequeue(struct Qdisc* qd)
{
struct sk_buff_head *q = qdisc_priv(qd);
return skb_dequeue(q);
}
static int pfifo_init(struct Qdisc* qd, struct rtattr *opt)
{
struct sk_buff_head *q = qdisc_priv(qd);
skb_queue_head_init(q);
return 0;
}
static void pfifo_reset(struct Qdisc* qd)
{
struct sk_buff_head *q = qdisc_priv(qd);
skb_queue_purge(q);
qd->q.qlen = 0;
}
static int pfifo_dump(struct Qdisc *qd, struct sk_buff *skb)
{
return skb->len;
}
struct Qdisc_ops pfifo_qdisc_ops =
{
.next = NULL,
.cl_ops = NULL,
.id = "ieee80211_pfifo",
.priv_size = sizeof(struct sk_buff_head),
.enqueue = pfifo_enqueue,
.dequeue = pfifo_dequeue,
.requeue = pfifo_requeue,
.drop = NULL,
.init = pfifo_init,
.reset = pfifo_reset,
.destroy = NULL,
.change = NULL,
.dump = pfifo_dump,
};

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package/d80211/src/hostapd_ioctl.h Normal file
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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)
#define PRISM2_IOCTL_TEST_PARAM (SIOCIWFIRSTPRIV + 4)
/* PRISM2_IOCTL_PRISM2_PARAM ioctl() subtypes: */
enum {
PRISM2_PARAM_PTYPE = 1,
PRISM2_PARAM_TXRATECTRL = 2,
PRISM2_PARAM_BEACON_INT = 3,
PRISM2_PARAM_PSEUDO_IBSS = 4,
PRISM2_PARAM_ALC = 5,
PRISM2_PARAM_TXPOWER = 6,
PRISM2_PARAM_DUMP = 7,
PRISM2_PARAM_OTHER_AP_POLICY = 8,
PRISM2_PARAM_AP_MAX_INACTIVITY = 9,
PRISM2_PARAM_AP_BRIDGE_PACKETS = 10,
PRISM2_PARAM_DTIM_PERIOD = 11,
PRISM2_PARAM_AP_NULLFUNC_ACK = 12,
PRISM2_PARAM_MAX_WDS = 13,
PRISM2_PARAM_AP_AUTOM_AP_WDS = 14,
PRISM2_PARAM_AP_AUTH_ALGS = 15,
PRISM2_PARAM_MONITOR_ALLOW_FCSERR = 16,
PRISM2_PARAM_HOST_ENCRYPT = 17,
PRISM2_PARAM_HOST_DECRYPT = 18,
PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX = 19,
PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX = 20,
PRISM2_PARAM_HOST_ROAMING = 21,
PRISM2_PARAM_BCRX_STA_KEY = 22,
PRISM2_PARAM_IEEE_802_1X = 23,
PRISM2_PARAM_ANTSEL_TX = 24,
PRISM2_PARAM_ANTSEL_RX = 25,
PRISM2_PARAM_MONITOR_TYPE = 26,
PRISM2_PARAM_WDS_TYPE = 27,
PRISM2_PARAM_HOSTSCAN = 28,
PRISM2_PARAM_AP_SCAN = 29,
/* Instant802 additions */
PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES = 1001,
PRISM2_PARAM_DROP_UNENCRYPTED = 1002,
PRISM2_PARAM_PREAMBLE = 1003,
PRISM2_PARAM_RATE_LIMIT = 1004, /* no longer used */
PRISM2_PARAM_RATE_LIMIT_BURST = 1005, /* no longer used */
PRISM2_PARAM_SHORT_SLOT_TIME = 1006,
PRISM2_PARAM_TEST_MODE = 1007,
PRISM2_PARAM_NEXT_MODE = 1008,
PRISM2_PARAM_CLEAR_KEYS = 1009,
PRISM2_PARAM_RADIO_ENABLED = 1010,
PRISM2_PARAM_ANTENNA_SEL = 1011,
PRISM2_PARAM_CALIB_INT = 1012,
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,
/* NOTE: Please try to coordinate with other active development
* branches before allocating new param numbers so that each new param
* will be unique within all branches and the allocated number will not
* need to be changed when merging new features. Existing numbers in
* the mainline (or main devel branch) must not be changed when merging
* in new features. */
};
/* PRISM2_IOCTL_HOSTAPD ioctl() cmd: */
enum {
PRISM2_HOSTAPD_FLUSH = 1,
PRISM2_HOSTAPD_ADD_STA = 2,
PRISM2_HOSTAPD_REMOVE_STA = 3,
PRISM2_HOSTAPD_GET_INFO_STA = 4,
/* REMOVED: PRISM2_HOSTAPD_RESET_TXEXC_STA = 5, */
PRISM2_SET_ENCRYPTION = 6,
PRISM2_GET_ENCRYPTION = 7,
PRISM2_HOSTAPD_SET_FLAGS_STA = 8,
PRISM2_HOSTAPD_GET_RID = 9,
PRISM2_HOSTAPD_SET_RID = 10,
PRISM2_HOSTAPD_SET_ASSOC_AP_ADDR = 11,
PRISM2_HOSTAPD_MLME = 13,
/* Instant802 additions */
PRISM2_HOSTAPD_SET_BEACON = 1001,
PRISM2_HOSTAPD_GET_HW_FEATURES = 1002,
PRISM2_HOSTAPD_SCAN = 1003,
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,
PRISM2_HOSTAPD_GET_TX_POWER = 1025,
/* NOTE: Please try to coordinate with other active development
* branches before allocating new param numbers so that each new param
* will be unique within all branches and the allocated number will not
* need to be changed when merging new features. Existing numbers in
* the mainline (or main devel branch) must not be changed when merging
* in new features. */
};
/* these definitions mirror the ieee80211_i.h
* IEEE80211_DISABLED, ... IEEE80211_ASSOCIATED enumeration */
enum {
PRISM2_PARAM_STA_DISABLED,
PRISM2_PARAM_STA_AUTHENTICATE,
PRISM2_PARAM_STA_ASSOCIATE,
PRISM2_PARAM_STA_ASSOCIATED,
};
#define PRISM2_HOSTAPD_MAX_BUF_SIZE 2048
#define HOSTAP_CRYPT_ALG_NAME_LEN 16
/* Use this to make sure that structure elements are correctly aligned
* for access as other types. Most commonly, this affects the placeholder
* types used for data at the end of a structure in this union.
*/
#ifdef __GNUC__
#undef ALIGNED
#define ALIGNED __attribute__ ((aligned))
#else
/* Check if it has been defined elsewhere */
#ifndef ALIGNED
#error "Must define ALIGNED to generate aligned structure elements"
#endif
#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 rid;
u16 len;
u8 data[0] ALIGNED;
} rid;
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 {
u32 bss_count;
u8 bssid_mask[ETH_ALEN];
} set_bss;
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 {
unsigned int tx_power_min;
unsigned int tx_power_max;
} tx_power;
struct {
u8 dummy[80]; /* Make sizeof() this struct large enough
* with some compiler versions. */
} dummy;
} u;
};
#ifndef IEEE80211_TX_QUEUE_NUMS
#define IEEE80211_TX_QUEUE_NUMS
/* TODO: these need to be synchronized with ieee80211.h; make a shared header
* file that can be included into low-level drivers, 80211.o, and hostapd */
/* tx_queue_params - queue */
enum {
IEEE80211_TX_QUEUE_DATA0 = 0, /* used for EDCA AC_VO data */
IEEE80211_TX_QUEUE_DATA1 = 1, /* used for EDCA AC_VI data */
IEEE80211_TX_QUEUE_DATA2 = 2, /* used for EDCA AC_BE data */
IEEE80211_TX_QUEUE_DATA3 = 3, /* used for EDCA AC_BK data */
IEEE80211_TX_QUEUE_DATA4 = 4,
IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
IEEE80211_TX_QUEUE_BEACON = 7
};
#endif /* IEEE80211_TX_QUEUE_NUMS */
#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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/*
* 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/interrupt.h>
#include <linux/if.h>
#include <linux/if_ether.h>
#include <linux/netdevice.h>
#include <net/d80211.h>
#include "ieee80211_i.h"
#include "ieee80211_led.h"
struct ieee80211_dev_list {
struct list_head list;
int dev_index;
struct ieee80211_local *local;
};
static LIST_HEAD(dev_list);
static DEFINE_SPINLOCK(dev_list_lock);
/* Caller must hold dev_list_lock */
static struct ieee80211_dev_list *__ieee80211_dev_find(int index)
{
struct ieee80211_dev_list *dev_item;
list_for_each_entry(dev_item, &dev_list, list) {
if (dev_item->dev_index == index)
return dev_item;
}
return NULL;
}
int ieee80211_dev_alloc_index(struct ieee80211_local *local)
{
struct ieee80211_dev_list *dev_item, *new;
int index = 0;
new = kmalloc(sizeof(struct ieee80211_dev_list), GFP_KERNEL);
if (!new)
return -ENOMEM;
new->local = local;
spin_lock(&dev_list_lock);
list_for_each_entry(dev_item, &dev_list, list) {
if (index < dev_item->dev_index)
break;
index++;
}
new->dev_index = index;
list_add_tail(&new->list, &dev_item->list);
spin_unlock(&dev_list_lock);
local->hw.index = index;
return index;
}
void ieee80211_dev_free_index(struct ieee80211_local *local)
{
struct ieee80211_dev_list *dev_item;
spin_lock(&dev_list_lock);
dev_item = __ieee80211_dev_find(local->hw.index);
if (dev_item)
list_del(&dev_item->list);
spin_unlock(&dev_list_lock);
if (dev_item)
kfree(dev_item);
local->hw.index = -1;
}
struct ieee80211_local *ieee80211_dev_find(int index)
{
struct ieee80211_dev_list *dev_item;
spin_lock(&dev_list_lock);
dev_item = __ieee80211_dev_find(index);
spin_unlock(&dev_list_lock);
return dev_item ? dev_item->local : NULL;
}
int ieee80211_dev_find_index(struct ieee80211_local *local)
{
struct ieee80211_dev_list *dev_item;
int index = -1;
spin_lock(&dev_list_lock);
list_for_each_entry(dev_item, &dev_list, list) {
if (dev_item->local == local) {
index = dev_item->dev_index;
break;
}
}
spin_unlock(&dev_list_lock);
return index;
}
struct ieee80211_local *ieee80211_dev_alloc(gfp_t flags)
{
struct ieee80211_local *local;
local = kzalloc(sizeof(struct ieee80211_local), flags);
if (!local)
return NULL;
local->hw.index = -1;
ieee80211_dev_sysfs_init(local);
return local;
}
void ieee80211_dev_free(struct ieee80211_local *local)
{
ieee80211_dev_sysfs_put(local);
}

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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.
*/
#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 "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 IEEE80211_MAX_SSID_LEN 32
#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
/* 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
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;
u8 *wpa_ie;
size_t wpa_ie_len;
u8 *rsn_ie;
size_t rsn_ie_len;
u8 *wmm_ie;
size_t wmm_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_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_rateidx;
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;
unsigned int in_scan:1;
/* frame is destined to interface currently processed
* (including multicast frames) */
unsigned int ra_match: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 pkt_probe_resp:1;
unsigned int requeue:1;
unsigned int queue:4;
unsigned int mgmt_iface:1;
};
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;
unsigned int last_frag_rate_ctrl_probe:1;
};
struct ieee80211_passive_scan {
unsigned int in_scan:1; /* this must be cleared before calling
* netif_oper(WAKEUP) */
unsigned int our_mode_only:1; /* only scan our physical mode a/b/g/etc
*/
int interval; /* time in seconds between scans */
int time; /* time in microseconds to scan for */
int channel; /* channel to be scanned */
int tries;
int mode_idx;
int chan_idx;
int freq;
int rx_packets;
int rx_beacon;
int txrx_count;
struct timer_list timer;
struct sk_buff *skb; /* skb to transmit before changing channels,
* maybe null for none */
struct ieee80211_tx_control tx_control;
unsigned int num_scans;
};
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 work_struct work;
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;
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;
};
struct ieee80211_sub_if_data {
struct list_head list;
unsigned int type;
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 */
/* 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 kset key_kset;
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;
struct attribute_group *sysfs_group;
};
#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
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;
struct ieee80211_ops *ops;
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;
struct class_device class_dev;
enum {
IEEE80211_DEV_UNITIALIZED = 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;
enum {
ieee80211_rx_msg = 1,
ieee80211_tx_status_msg = 2
} ieee80211_msg_enum;
spinlock_t generic_lock;
/* Station data structures */
struct kset sta_kset;
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 */
/* Current rate table. This is a pointer to hw->modes structure. */
struct ieee80211_rate *curr_rates;
int num_curr_rates;
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 */
struct ieee80211_passive_scan scan;
ieee80211_rx_handler *rx_pre_handlers;
ieee80211_rx_handler *rx_handlers;
ieee80211_tx_handler *tx_handlers;
spinlock_t sub_if_lock; /* mutex for STA data structures */
struct list_head sub_if_list;
int sta_scanning;
int scan_hw_mode_idx;
int scan_channel_idx;
enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
unsigned long last_scan_completed;
struct work_struct scan_work;
int scan_oper_channel;
int scan_oper_channel_val;
int scan_oper_power_level;
int scan_oper_freq;
int scan_oper_phymode;
int scan_oper_antenna_max;
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_D80211_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;
struct proc_dir_entry *proc, *proc_sta, *proc_iface;
struct work_struct sta_proc_add;
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_D80211_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_D80211_DEBUG_COUNTERS */
#define I802_DEBUG_INC(c) do { } while (0)
#endif /* CONFIG_D80211_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;
};
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_local *local,
struct ieee80211_if_ap *bss, int aid)
{
spin_lock(&local->sta_lock);
bss->tim[(aid)/8] |= 1<<((aid) % 8);
spin_unlock(&local->sta_lock);
}
static inline void bss_tim_clear(struct ieee80211_local *local,
struct ieee80211_if_ap *bss, int aid)
{
spin_lock(&local->sta_lock);
bss->tim[(aid)/8] &= !(1<<((aid) % 8));
spin_unlock(&local->sta_lock);
}
/* ieee80211.c */
void ieee80211_release_hw(struct ieee80211_local *local);
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,
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_key_release(struct kobject *kobj);
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);
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);
void ieee80211_if_shutdown(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;
extern const struct iw_handler_def ieee80211_iw_master_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);
/* ieee80211_scan.c */
void ieee80211_init_scan(struct ieee80211_local *local);
void ieee80211_stop_scan(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);
/* ieee80211_sta.c */
void ieee80211_sta_work(void *ptr);
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);
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);
/* ieee80211_dev.c */
int ieee80211_dev_alloc_index(struct ieee80211_local *local);
void ieee80211_dev_free_index(struct ieee80211_local *local);
struct ieee80211_local *ieee80211_dev_find(int index);
int ieee80211_dev_find_index(struct ieee80211_local *local);
struct ieee80211_local *ieee80211_dev_alloc(gfp_t flags);
void ieee80211_dev_free(struct ieee80211_local *local);
/* ieee80211_iface.c */
int ieee80211_if_add(struct net_device *dev, const char *name,
int format, struct net_device **new_dev);
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);
void ieee80211_if_del(struct net_device *dev);
int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
void ieee80211_if_free(struct net_device *dev);
void ieee80211_if_flush(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);
/* ieee80211_sysfs.c */
int ieee80211_sysfs_add_netdevice(struct net_device *dev);
void ieee80211_sysfs_remove_netdevice(struct net_device *dev);
void ieee80211_dev_sysfs_init(struct ieee80211_local *local);
void ieee80211_dev_sysfs_put(struct ieee80211_local *local);
int ieee80211_dev_sysfs_add(struct ieee80211_local *local);
void ieee80211_dev_sysfs_del(struct ieee80211_local *local);
int ieee80211_sysfs_init(void);
void ieee80211_sysfs_deinit(void);
int ieee80211_sysfs_change_if_type(struct net_device *dev);
/* ieee80211_sysfs_sta.c */
int ieee80211_sta_kset_sysfs_register(struct ieee80211_local *local);
void ieee80211_sta_kset_sysfs_unregister(struct ieee80211_local *local);
int ieee80211_sta_sysfs_add(struct sta_info *sta);
void ieee80211_sta_sysfs_remove(struct sta_info *sta);
int ieee80211_key_kset_sysfs_register(struct ieee80211_sub_if_data *sdata);
void ieee80211_key_kset_sysfs_unregister(struct ieee80211_sub_if_data *sdata);
void ieee80211_key_sysfs_set_kset(struct ieee80211_key *key, struct kset *kset);
int ieee80211_key_sysfs_add(struct ieee80211_key *key);
void ieee80211_key_sysfs_remove(struct ieee80211_key *key);
int ieee80211_key_sysfs_add_default(struct ieee80211_sub_if_data *sdata);
void ieee80211_key_sysfs_remove_default(struct ieee80211_sub_if_data *sdata);
#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/d80211.h>
#include <net/d80211_mgmt.h>
#include "ieee80211_i.h"
#include "sta_info.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,
int format, struct net_device **new_dev)
{
struct net_device *ndev, *tmp_dev;
struct ieee80211_local *local = dev->ieee80211_ptr;
struct ieee80211_sub_if_data *sdata = NULL, *sdata_parent;
int ret;
int i;
ASSERT_RTNL();
ndev = *new_dev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
"", ieee80211_if_setup);
if (!ndev)
return -ENOMEM;
ndev->ieee80211_ptr = local;
if (strlen(name) == 0) {
i = 0;
do {
sprintf(ndev->name, "%s.%d", dev->name, i++);
tmp_dev = dev_get_by_name(ndev->name);
if (!tmp_dev)
break;
dev_put(tmp_dev);
} while (i < 10000);
} else if (format) {
ret = dev_alloc_name(ndev, name);
if (ret < 0)
goto fail;
} else {
snprintf(ndev->name, IFNAMSIZ, "%s", name);
}
memcpy(ndev->dev_addr, local->hw.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;
ndev->flags = dev->flags & IFF_MULTICAST;
SET_NETDEV_DEV(ndev, local->hw.dev);
sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
sdata->type = IEEE80211_IF_TYPE_AP;
sdata->dev = ndev;
sdata->local = local;
sdata_parent = IEEE80211_DEV_TO_SUB_IF(dev);
ieee80211_if_sdata_init(sdata);
ret = register_netdevice(ndev);
if (ret)
goto fail;
ret = ieee80211_sysfs_add_netdevice(ndev);
if (ret) {
/* ndev will be freed by ndev->destructor */
unregister_netdevice(ndev);
*new_dev = NULL;
return ret;
}
list_add(&sdata->list, &local->sub_if_list);
return 0;
fail:
free_netdev(ndev);
*new_dev = NULL;
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), "",
ieee80211_if_mgmt_setup);
if (!ndev)
return -ENOMEM;
ret = dev_alloc_name(ndev, "wmgmt%d");
if (ret < 0)
goto fail;
ndev->ieee80211_ptr = local;
memcpy(ndev->dev_addr, local->hw.perm_addr, ETH_ALEN);
SET_NETDEV_DEV(ndev, local->hw.dev);
nsdata = IEEE80211_DEV_TO_SUB_IF(ndev);
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;
ret = ieee80211_sysfs_add_netdevice(ndev);
if (ret)
goto fail_sysfs;
if (local->open_count > 0)
dev_open(ndev);
local->apdev = ndev;
return 0;
fail_sysfs:
unregister_netdevice(ndev);
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_sysfs_remove_netdevice(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);
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, dev);
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;
msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
sdata->bss = &msdata->u.ap;
break;
}
case IEEE80211_IF_TYPE_MNTR:
dev->type = ARPHRD_IEEE80211_PRISM;
break;
default:
printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x",
dev->name, __FUNCTION__, type);
}
ieee80211_sysfs_change_if_type(dev);
}
/* Must be called with rtnl lock held. */
void ieee80211_if_reinit(struct net_device *dev)
{
struct ieee80211_local *local = 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(dev, DISABLE_KEY, addr,
local->keys[i], 0);
#endif
ieee80211_key_free(sdata->keys[i]);
}
/* Shouldn't be necessary but won't hurt */
ieee80211_if_shutdown(dev);
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_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);
__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_D80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Someone had deleted my STA "
"entry for the WDS link\n", dev->name);
#endif /* CONFIG_D80211_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_if_reinit(dev);
list_del(&sdata->list);
ieee80211_sysfs_remove_netdevice(dev);
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 = dev->ieee80211_ptr;
struct ieee80211_sub_if_data *sdata, *n;
ASSERT_RTNL();
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) {
__ieee80211_if_del(local, sdata);
return 0;
}
}
return -ENODEV;
}
void ieee80211_if_free(struct net_device *dev)
{
struct ieee80211_local *local = 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);
}
/* Must be called with rtnl lock held. */
void ieee80211_if_flush(struct net_device *dev)
{
struct ieee80211_local *local = dev->ieee80211_ptr;
struct ieee80211_sub_if_data *sdata, *n;
ASSERT_RTNL();
list_for_each_entry_safe(sdata, n, &local->sub_if_list, list) {
__ieee80211_if_del(local, sdata);
}
}
void ieee80211_if_del(struct net_device *dev)
{
struct ieee80211_local *local = dev->ieee80211_ptr;
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rtnl_lock();
if (sdata->type == IEEE80211_IF_TYPE_MGMT)
ieee80211_if_del_mgmt(local);
else
__ieee80211_if_del(local, sdata);
rtnl_unlock();
}

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89
package/d80211/src/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/kobject.h>
#include <linux/crypto.h>
#include <net/d80211.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 kobject kobj;
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;
int keyidx:8; /* WEP key index */
unsigned int default_tx_key:1; /* This key is the new default TX key
* (used only for broadcast keys). */
u8 key[0];
};
#endif /* IEEE80211_KEY_H */

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package/d80211/src/ieee80211_led.c Normal file
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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),
"wiphy%drx", local->hw.index);
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),
"wiphy%dtx", local->hw.index);
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_D80211_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/d80211/src/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/d80211.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 */
int startidx, endidx, rateidx;
struct ieee80211_rate *nonerp;
int nonerp_idx;
/* parameters from the caller to rate_control_get_rate(): */
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);
int (*add_sta_attrs)(void *priv, void *priv_sta,
struct kobject *kobj);
void (*remove_sta_attrs)(void *priv, void *priv_sta,
struct kobject *kobj);
};
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 int rate_control_add_attrs(struct rate_control_ref *ref,
struct kobject *kobj)
{
if (ref->ops->add_attrs)
return ref->ops->add_attrs(ref->priv, kobj);
return 0;
}
static inline void rate_control_remove_attrs(struct rate_control_ref *ref,
struct kobject *kobj)
{
if (ref->ops->remove_attrs)
ref->ops->remove_attrs(ref->priv, kobj);
}
static inline int rate_control_add_sta_attrs(struct sta_info *sta,
struct kobject *kobj)
{
struct rate_control_ref *ref = sta->rate_ctrl;
if (ref->ops->add_sta_attrs)
return ref->ops->add_sta_attrs(ref->priv, sta->rate_ctrl_priv,
kobj);
return 0;
}
static inline void rate_control_remove_sta_attrs(struct sta_info *sta,
struct kobject *kobj)
{
struct rate_control_ref *ref = sta->rate_ctrl;
if (ref->ops->remove_sta_attrs)
ref->ops->remove_sta_attrs(ref->priv, sta->rate_ctrl_priv,
kobj);
}
#endif /* IEEE80211_RATE_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/module.h>
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <net/d80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
/* Maximum number of seconds to wait for the traffic load to get below
* threshold before forcing a passive scan. */
#define MAX_SCAN_WAIT 60
/* Threshold (pkts/sec TX or RX) for delaying passive scan */
#define SCAN_TXRX_THRESHOLD 75
static void get_channel_params(struct ieee80211_local *local, int channel,
struct ieee80211_hw_modes **mode,
struct ieee80211_channel **chan)
{
int m;
for (m = 0; m < local->hw.num_modes; m++) {
*mode = &local->hw.modes[m];
if ((*mode)->mode == local->hw.conf.phymode)
break;
}
local->scan.mode_idx = m;
local->scan.chan_idx = 0;
do {
*chan = &(*mode)->channels[local->scan.chan_idx];
if ((*chan)->chan == channel) {
return;
}
local->scan.chan_idx++;
} while (local->scan.chan_idx < (*mode)->num_channels);
*chan = NULL;
}
static void next_chan_same_mode(struct ieee80211_local *local,
struct ieee80211_hw_modes **mode,
struct ieee80211_channel **chan)
{
int m, prev;
for (m = 0; m < local->hw.num_modes; m++) {
*mode = &local->hw.modes[m];
if ((*mode)->mode == local->hw.conf.phymode)
break;
}
local->scan.mode_idx = m;
/* Select next channel - scan only channels marked with W_SCAN flag */
prev = local->scan.chan_idx;
do {
local->scan.chan_idx++;
if (local->scan.chan_idx >= (*mode)->num_channels)
local->scan.chan_idx = 0;
*chan = &(*mode)->channels[local->scan.chan_idx];
if ((*chan)->flag & IEEE80211_CHAN_W_SCAN)
break;
} while (local->scan.chan_idx != prev);
}
static void next_chan_all_modes(struct ieee80211_local *local,
struct ieee80211_hw_modes **mode,
struct ieee80211_channel **chan)
{
int prev, prev_m;
if (local->scan.mode_idx >= local->hw.num_modes) {
local->scan.mode_idx = 0;
local->scan.chan_idx = 0;
}
/* Select next channel - scan only channels marked with W_SCAN flag */
prev = local->scan.chan_idx;
prev_m = local->scan.mode_idx;
do {
*mode = &local->hw.modes[local->scan.mode_idx];
local->scan.chan_idx++;
if (local->scan.chan_idx >= (*mode)->num_channels) {
local->scan.chan_idx = 0;
local->scan.mode_idx++;
if (local->scan.mode_idx >= local->hw.num_modes)
local->scan.mode_idx = 0;
*mode = &local->hw.modes[local->scan.mode_idx];
}
*chan = &(*mode)->channels[local->scan.chan_idx];
if ((*chan)->flag & IEEE80211_CHAN_W_SCAN)
break;
} while (local->scan.chan_idx != prev ||
local->scan.mode_idx != prev_m);
}
static void ieee80211_scan_start(struct ieee80211_local *local,
struct ieee80211_scan_conf *conf)
{
int old_mode_idx = local->scan.mode_idx;
int old_chan_idx = local->scan.chan_idx;
struct ieee80211_hw_modes *mode = NULL;
struct ieee80211_channel *chan = NULL;
int ret;
if (!local->ops->passive_scan) {
printk(KERN_DEBUG "%s: Scan handler called, yet the hardware "
"does not support passive scanning. Disabled.\n",
local->mdev->name);
return;
}
if ((local->scan.tries < MAX_SCAN_WAIT &&
local->scan.txrx_count > SCAN_TXRX_THRESHOLD)) {
local->scan.tries++;
/* Count TX/RX packets during one second interval and allow
* scan to start only if the number of packets is below the
* threshold. */
local->scan.txrx_count = 0;
local->scan.timer.expires = jiffies + HZ;
add_timer(&local->scan.timer);
return;
}
if (!local->scan.skb) {
printk(KERN_DEBUG "%s: Scan start called even though scan.skb "
"is not set\n", local->mdev->name);
}
if (local->scan.our_mode_only) {
if (local->scan.channel > 0) {
get_channel_params(local, local->scan.channel, &mode,
&chan);
} else
next_chan_same_mode(local, &mode, &chan);
}
else
next_chan_all_modes(local, &mode, &chan);
conf->scan_channel = chan->chan;
conf->scan_freq = chan->freq;
conf->scan_channel_val = chan->val;
conf->scan_phymode = mode->mode;
conf->scan_power_level = chan->power_level;
conf->scan_antenna_max = chan->antenna_max;
conf->scan_time = 2 * local->hw.channel_change_time +
local->scan.time; /* 10ms scan time+hardware changes */
conf->skb = local->scan.skb ?
skb_clone(local->scan.skb, GFP_ATOMIC) : NULL;
conf->tx_control = &local->scan.tx_control;
#if 0
printk(KERN_DEBUG "%s: Doing scan on mode: %d freq: %d chan: %d "
"for %d ms\n",
local->mdev->name, conf->scan_phymode, conf->scan_freq,
conf->scan_channel, conf->scan_time);
#endif
local->scan.rx_packets = 0;
local->scan.rx_beacon = 0;
local->scan.freq = chan->freq;
local->scan.in_scan = 1;
ieee80211_netif_oper(local_to_hw(local), NETIF_STOP);
ret = local->ops->passive_scan(local_to_hw(local),
IEEE80211_SCAN_START, conf);
if (ret == 0) {
long usec = local->hw.channel_change_time +
local->scan.time;
usec += 1000000L / HZ - 1;
usec /= 1000000L / HZ;
local->scan.timer.expires = jiffies + usec;
} else {
local->scan.in_scan = 0;
if (conf->skb)
dev_kfree_skb(conf->skb);
ieee80211_netif_oper(local_to_hw(local), NETIF_WAKE);
if (ret == -EAGAIN) {
local->scan.timer.expires = jiffies +
(local->scan.interval * HZ / 100);
local->scan.mode_idx = old_mode_idx;
local->scan.chan_idx = old_chan_idx;
} else {
printk(KERN_DEBUG "%s: Got unknown error from "
"passive_scan %d\n", local->mdev->name, ret);
local->scan.timer.expires = jiffies +
(local->scan.interval * HZ);
}
local->scan.in_scan = 0;
}
add_timer(&local->scan.timer);
}
static void ieee80211_scan_stop(struct ieee80211_local *local,
struct ieee80211_scan_conf *conf)
{
struct ieee80211_hw_modes *mode;
struct ieee80211_channel *chan;
int wait;
if (!local->ops->passive_scan)
return;
if (local->scan.mode_idx >= local->hw.num_modes) {
local->scan.mode_idx = 0;
local->scan.chan_idx = 0;
}
mode = &local->hw.modes[local->scan.mode_idx];
if (local->scan.chan_idx >= mode->num_channels) {
local->scan.chan_idx = 0;
}
chan = &mode->channels[local->scan.chan_idx];
local->ops->passive_scan(local_to_hw(local), IEEE80211_SCAN_END,
conf);
#ifdef CONFIG_D80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Did scan on mode: %d freq: %d chan: %d "
"GOT: %d Beacon: %d (%d)\n",
local->mdev->name,
mode->mode, chan->freq, chan->chan,
local->scan.rx_packets, local->scan.rx_beacon,
local->scan.tries);
#endif /* CONFIG_D80211_VERBOSE_DEBUG */
local->scan.num_scans++;
local->scan.in_scan = 0;
ieee80211_netif_oper(local_to_hw(local), NETIF_WAKE);
local->scan.tries = 0;
/* Use random interval of scan.interval .. 2 * scan.interval */
wait = (local->scan.interval * HZ * ((net_random() & 127) + 128)) /
128;
local->scan.timer.expires = jiffies + wait;
add_timer(&local->scan.timer);
}
static void ieee80211_scan_handler(unsigned long ullocal)
{
struct ieee80211_local *local = (struct ieee80211_local *) ullocal;
struct ieee80211_scan_conf conf;
if (local->scan.interval == 0 && !local->scan.in_scan) {
/* Passive scanning is disabled - keep the timer always
* running to make code cleaner. */
local->scan.timer.expires = jiffies + 10 * HZ;
add_timer(&local->scan.timer);
return;
}
memset(&conf, 0, sizeof(struct ieee80211_scan_conf));
conf.running_freq = local->hw.conf.freq;
conf.running_channel = local->hw.conf.channel;
conf.running_phymode = local->hw.conf.phymode;
conf.running_channel_val = local->hw.conf.channel_val;
conf.running_power_level = local->hw.conf.power_level;
conf.running_antenna_max = local->hw.conf.antenna_max;
if (local->scan.in_scan == 0)
ieee80211_scan_start(local, &conf);
else
ieee80211_scan_stop(local, &conf);
}
void ieee80211_init_scan(struct ieee80211_local *local)
{
struct ieee80211_hdr hdr;
u16 fc;
int len = 10;
struct rate_control_extra extra;
/* Only initialize passive scanning if the hardware supports it */
if (!local->ops->passive_scan) {
local->scan.skb = NULL;
memset(&local->scan.tx_control, 0,
sizeof(local->scan.tx_control));
printk(KERN_DEBUG "%s: Does not support passive scan, "
"disabled\n", local->mdev->name);
return;
}
local->scan.interval = 0;
local->scan.our_mode_only = 1;
local->scan.time = 10000;
local->scan.timer.function = ieee80211_scan_handler;
local->scan.timer.data = (unsigned long) local;
local->scan.timer.expires = jiffies + local->scan.interval * HZ;
add_timer(&local->scan.timer);
/* Create a CTS from for broadcasting before
* the low level changes channels */
local->scan.skb = alloc_skb(len, GFP_KERNEL);
if (!local->scan.skb) {
printk(KERN_WARNING "%s: Failed to allocate CTS packet for "
"passive scan\n", local->mdev->name);
return;
}
fc = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
hdr.frame_control = cpu_to_le16(fc);
hdr.duration_id =
cpu_to_le16(2 * local->hw.channel_change_time +
local->scan.time);
memcpy(hdr.addr1, local->mdev->dev_addr, ETH_ALEN); /* DA */
hdr.seq_ctrl = 0;
memcpy(skb_put(local->scan.skb, len), &hdr, len);
memset(&local->scan.tx_control, 0, sizeof(local->scan.tx_control));
local->scan.tx_control.key_idx = HW_KEY_IDX_INVALID;
local->scan.tx_control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
memset(&extra, 0, sizeof(extra));
extra.endidx = local->num_curr_rates;
local->scan.tx_control.tx_rate =
rate_control_get_rate(local, local->mdev,
local->scan.skb, &extra)->val;
local->scan.tx_control.flags |= IEEE80211_TXCTL_NO_ACK;
}
void ieee80211_stop_scan(struct ieee80211_local *local)
{
if (local->ops->passive_scan) {
del_timer_sync(&local->scan.timer);
dev_kfree_skb(local->scan.skb);
local->scan.skb = NULL;
}
}

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package/d80211/src/ieee80211_sysfs.c Normal file
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/*
* 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/device.h>
#include <linux/if.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <net/d80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#define to_ieee80211_local(class) \
container_of(class, struct ieee80211_local, class_dev)
#define to_net_dev(class) \
container_of(class, struct net_device, class_dev)
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;
}
static const char *ieee80211_mode_str_short(int mode)
{
switch (mode) {
case MODE_IEEE80211A:
return "802.11a";
case MODE_IEEE80211B:
return "802.11b";
case MODE_IEEE80211G:
return "802.11g";
case MODE_ATHEROS_TURBO:
return "AtherosTurbo";
default:
return "UNKNOWN";
}
}
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";
}
}
/* attributes in /sys/class/ieee80211/phyX/ */
static ssize_t store_add_iface(struct class_device *dev,
const char *buf, size_t len)
{
struct ieee80211_local *local = to_ieee80211_local(dev);
struct net_device *new_dev;
int res;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (len > IFNAMSIZ)
return -EINVAL;
res = rtnl_lock_local(local);
if (res)
return res;
res = ieee80211_if_add(local->mdev, buf, 0, &new_dev);
if (res == 0)
ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_STA);
rtnl_unlock();
return res < 0 ? res : len;
}
static ssize_t store_remove_iface(struct class_device *dev,
const char *buf, size_t len)
{
struct ieee80211_local *local = to_ieee80211_local(dev);
int res;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (len > IFNAMSIZ)
return -EINVAL;
res = rtnl_lock_local(local);
if (res)
return res;
res = ieee80211_if_remove(local->mdev, buf, -1);
rtnl_unlock();
return res < 0 ? res : len;
}
static ssize_t store_rate_ctrl_alg(struct class_device *dev,
const char *buf, size_t len)
{
struct ieee80211_local *local = to_ieee80211_local(dev);
int res;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
res = rtnl_lock_local(local);
if (res)
return res;
res = ieee80211_init_rate_ctrl_alg(local, buf);
rtnl_unlock();
return res < 0 ? res : len;
}
static ssize_t ieee80211_local_show(struct class_device *dev, char *buf,
ssize_t (*format)(struct ieee80211_local *, char *))
{
struct ieee80211_local *local = to_ieee80211_local(dev);
ssize_t ret = -EINVAL;
if (local->reg_state == IEEE80211_DEV_REGISTERED)
ret = (*format)(local, buf);
return ret;
}
#define IEEE80211_LOCAL_FMT(name, field, format_string) \
static ssize_t ieee80211_local_fmt_##name(struct ieee80211_local *local,\
char *buf) \
{ \
return sprintf(buf, format_string, local->field); \
}
#define __IEEE80211_LOCAL_SHOW(name) \
static ssize_t ieee80211_local_show_##name(struct class_device *cd, \
char *buf) \
{ \
return ieee80211_local_show(cd, buf, \
ieee80211_local_fmt_##name); \
}
#define IEEE80211_LOCAL_SHOW(name, field, format) \
IEEE80211_LOCAL_FMT(name, field, format "\n") \
__IEEE80211_LOCAL_SHOW(name)
IEEE80211_LOCAL_SHOW(channel, hw.conf.channel, "%d");
IEEE80211_LOCAL_SHOW(frequency, hw.conf.freq, "%d");
IEEE80211_LOCAL_SHOW(radar_detect, hw.conf.radar_detect, "%d");
IEEE80211_LOCAL_SHOW(antenna_sel, hw.conf.antenna_sel, "%d");
IEEE80211_LOCAL_SHOW(bridge_packets, bridge_packets, "%d");
IEEE80211_LOCAL_SHOW(key_tx_rx_threshold, key_tx_rx_threshold, "%d");
IEEE80211_LOCAL_SHOW(rts_threshold, rts_threshold, "%d");
IEEE80211_LOCAL_SHOW(fragmentation_threshold, fragmentation_threshold, "%d");
IEEE80211_LOCAL_SHOW(short_retry_limit, short_retry_limit, "%d");
IEEE80211_LOCAL_SHOW(long_retry_limit, long_retry_limit, "%d");
IEEE80211_LOCAL_SHOW(total_ps_buffered, total_ps_buffered, "%d");
static ssize_t ieee80211_local_fmt_mode(struct ieee80211_local *local,
char *buf)
{
return sprintf(buf, "%s\n", ieee80211_mode_str(local->hw.conf.phymode));
}
__IEEE80211_LOCAL_SHOW(mode);
static ssize_t ieee80211_local_fmt_wep_iv(struct ieee80211_local *local,
char *buf)
{
return sprintf(buf, "%#06x\n", local->wep_iv & 0xffffff);
}
__IEEE80211_LOCAL_SHOW(wep_iv);
static ssize_t ieee80211_local_fmt_tx_power_reduction(struct ieee80211_local
*local, char *buf)
{
short tx_power_reduction = local->hw.conf.tx_power_reduction;
return sprintf(buf, "%d.%d dBm\n", tx_power_reduction / 10,
tx_power_reduction % 10);
}
__IEEE80211_LOCAL_SHOW(tx_power_reduction);
static ssize_t ieee80211_local_fmt_modes(struct ieee80211_local *local,
char *buf)
{
int i;
struct ieee80211_hw_modes *mode;
char *p = buf;
/* FIXME: locking against ieee80211_update_hw? */
for (i = 0; i < local->hw.num_modes; i++) {
mode = &local->hw.modes[i];
p += sprintf(p, "%s\n", ieee80211_mode_str_short(mode->mode));
}
return (p - buf);
}
__IEEE80211_LOCAL_SHOW(modes);
static ssize_t ieee80211_local_fmt_rate_ctrl_alg(struct ieee80211_local *local,
char *buf)
{
struct rate_control_ref *ref = local->rate_ctrl;
if (ref)
return sprintf(buf, "%s\n", ref->ops->name);
return 0;
}
__IEEE80211_LOCAL_SHOW(rate_ctrl_alg);
static struct class_device_attribute ieee80211_class_dev_attrs[] = {
__ATTR(add_iface, S_IWUGO, NULL, store_add_iface),
__ATTR(remove_iface, S_IWUGO, NULL, store_remove_iface),
__ATTR(channel, S_IRUGO, ieee80211_local_show_channel, NULL),
__ATTR(frequency, S_IRUGO, ieee80211_local_show_frequency, NULL),
__ATTR(radar_detect, S_IRUGO, ieee80211_local_show_radar_detect, NULL),
__ATTR(antenna_sel, S_IRUGO, ieee80211_local_show_antenna_sel, NULL),
__ATTR(bridge_packets, S_IRUGO, ieee80211_local_show_bridge_packets, NULL),
__ATTR(key_tx_rx_threshold, S_IRUGO, ieee80211_local_show_key_tx_rx_threshold, NULL),
__ATTR(rts_threshold, S_IRUGO, ieee80211_local_show_rts_threshold, NULL),
__ATTR(fragmentation_threshold, S_IRUGO, ieee80211_local_show_fragmentation_threshold, NULL),
__ATTR(short_retry_limit, S_IRUGO, ieee80211_local_show_short_retry_limit, NULL),
__ATTR(long_retry_limit, S_IRUGO, ieee80211_local_show_long_retry_limit, NULL),
__ATTR(total_ps_buffered, S_IRUGO, ieee80211_local_show_total_ps_buffered, NULL),
__ATTR(mode, S_IRUGO, ieee80211_local_show_mode, NULL),
__ATTR(wep_iv, S_IRUGO, ieee80211_local_show_wep_iv, NULL),
__ATTR(tx_power_reduction, S_IRUGO, ieee80211_local_show_tx_power_reduction, NULL),
__ATTR(modes, S_IRUGO, ieee80211_local_show_modes, NULL),
__ATTR(rate_ctrl_alg, S_IRUGO | S_IWUGO, ieee80211_local_show_rate_ctrl_alg, store_rate_ctrl_alg),
{}
};
/* attributes in /sys/class/ieee80211/phyX/statistics/ */
#define IEEE80211_LOCAL_ATTR(name, field, format) \
IEEE80211_LOCAL_SHOW(name, field, format) \
static CLASS_DEVICE_ATTR(name, S_IRUGO, ieee80211_local_show_##name, NULL);
IEEE80211_LOCAL_ATTR(transmitted_fragment_count, dot11TransmittedFragmentCount, "%u");
IEEE80211_LOCAL_ATTR(multicast_transmitted_frame_count, dot11MulticastTransmittedFrameCount, "%u");
IEEE80211_LOCAL_ATTR(failed_count, dot11FailedCount, "%u");
IEEE80211_LOCAL_ATTR(retry_count, dot11RetryCount, "%u");
IEEE80211_LOCAL_ATTR(multiple_retry_count, dot11MultipleRetryCount, "%u");
IEEE80211_LOCAL_ATTR(frame_duplicate_count, dot11FrameDuplicateCount, "%u");
IEEE80211_LOCAL_ATTR(received_fragment_count, dot11ReceivedFragmentCount, "%u");
IEEE80211_LOCAL_ATTR(multicast_received_frame_count, dot11MulticastReceivedFrameCount, "%u");
IEEE80211_LOCAL_ATTR(transmitted_frame_count, dot11TransmittedFrameCount, "%u");
IEEE80211_LOCAL_ATTR(wep_undecryptable_count, dot11WEPUndecryptableCount, "%u");
IEEE80211_LOCAL_ATTR(num_scans, scan.num_scans, "%u");
#ifdef CONFIG_D80211_DEBUG_COUNTERS
IEEE80211_LOCAL_ATTR(tx_handlers_drop, tx_handlers_drop, "%u");
IEEE80211_LOCAL_ATTR(tx_handlers_queued, tx_handlers_queued, "%u");
IEEE80211_LOCAL_ATTR(tx_handlers_drop_unencrypted, tx_handlers_drop_unencrypted, "%u");
IEEE80211_LOCAL_ATTR(tx_handlers_drop_fragment, tx_handlers_drop_fragment, "%u");
IEEE80211_LOCAL_ATTR(tx_handlers_drop_wep, tx_handlers_drop_wep, "%u");
IEEE80211_LOCAL_ATTR(tx_handlers_drop_not_assoc, tx_handlers_drop_not_assoc, "%u");
IEEE80211_LOCAL_ATTR(tx_handlers_drop_unauth_port, tx_handlers_drop_unauth_port, "%u");
IEEE80211_LOCAL_ATTR(rx_handlers_drop, rx_handlers_drop, "%u");
IEEE80211_LOCAL_ATTR(rx_handlers_queued, rx_handlers_queued, "%u");
IEEE80211_LOCAL_ATTR(rx_handlers_drop_nullfunc, rx_handlers_drop_nullfunc, "%u");
IEEE80211_LOCAL_ATTR(rx_handlers_drop_defrag, rx_handlers_drop_defrag, "%u");
IEEE80211_LOCAL_ATTR(rx_handlers_drop_short, rx_handlers_drop_short, "%u");
IEEE80211_LOCAL_ATTR(rx_handlers_drop_passive_scan, rx_handlers_drop_passive_scan, "%u");
IEEE80211_LOCAL_ATTR(tx_expand_skb_head, tx_expand_skb_head, "%u");
IEEE80211_LOCAL_ATTR(tx_expand_skb_head_cloned, tx_expand_skb_head_cloned, "%u");
IEEE80211_LOCAL_ATTR(rx_expand_skb_head, rx_expand_skb_head, "%u");
IEEE80211_LOCAL_ATTR(rx_expand_skb_head2, rx_expand_skb_head2, "%u");
IEEE80211_LOCAL_ATTR(rx_handlers_fragments, rx_handlers_fragments, "%u");
IEEE80211_LOCAL_ATTR(tx_status_drop, tx_status_drop, "%u");
static ssize_t ieee80211_local_fmt_wme_rx_queue(struct ieee80211_local *local,
char *buf)
{
int i;
char *p = buf;
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += sprintf(p, "%u\n", local->wme_rx_queue[i]);
return (p - buf);
}
__IEEE80211_LOCAL_SHOW(wme_rx_queue);
static CLASS_DEVICE_ATTR(wme_rx_queue, S_IRUGO,
ieee80211_local_show_wme_rx_queue, NULL);
static ssize_t ieee80211_local_fmt_wme_tx_queue(struct ieee80211_local *local,
char *buf)
{
int i;
char *p = buf;
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += sprintf(p, "%u\n", local->wme_tx_queue[i]);
return (p - buf);
}
__IEEE80211_LOCAL_SHOW(wme_tx_queue);
static CLASS_DEVICE_ATTR(wme_tx_queue, S_IRUGO,
ieee80211_local_show_wme_tx_queue, NULL);
#endif
static ssize_t ieee80211_stats_show(struct class_device *dev, char *buf,
ssize_t (*format)(struct ieee80211_low_level_stats *, char *))
{
struct ieee80211_local *local = to_ieee80211_local(dev);
struct ieee80211_low_level_stats stats;
ssize_t ret = -EINVAL;
if (!local->ops->get_stats)
return -EOPNOTSUPP;
ret = rtnl_lock_local(local);
if (ret)
return ret;
ret = local->ops->get_stats(local_to_hw(local), &stats);
rtnl_unlock();
if (!ret)
ret = (*format)(&stats, buf);
return ret;
}
#define IEEE80211_STATS_FMT(name, field, format_string) \
static ssize_t ieee80211_stats_fmt_##name(struct ieee80211_low_level_stats \
*stats, char *buf) \
{ \
return sprintf(buf, format_string, stats->field); \
}
#define __IEEE80211_STATS_SHOW(name) \
static ssize_t ieee80211_stats_show_##name(struct class_device *cd, \
char *buf) \
{ \
return ieee80211_stats_show(cd, buf, \
ieee80211_stats_fmt_##name); \
}
#define IEEE80211_STATS_ATTR(name, field, format) \
IEEE80211_STATS_FMT(name, field, format "\n") \
__IEEE80211_STATS_SHOW(name) \
static CLASS_DEVICE_ATTR(name, S_IRUGO, ieee80211_stats_show_##name, NULL);
IEEE80211_STATS_ATTR(ack_failure_count, dot11ACKFailureCount, "%u");
IEEE80211_STATS_ATTR(rts_failure_count, dot11RTSFailureCount, "%u");
IEEE80211_STATS_ATTR(fcs_error_count, dot11FCSErrorCount, "%u");
IEEE80211_STATS_ATTR(rts_success_count, dot11RTSSuccessCount, "%u");
static struct attribute *ieee80211_stats_attrs[] = {
&class_device_attr_transmitted_fragment_count.attr,
&class_device_attr_multicast_transmitted_frame_count.attr,
&class_device_attr_failed_count.attr,
&class_device_attr_retry_count.attr,
&class_device_attr_multiple_retry_count.attr,
&class_device_attr_frame_duplicate_count.attr,
&class_device_attr_received_fragment_count.attr,
&class_device_attr_multicast_received_frame_count.attr,
&class_device_attr_transmitted_frame_count.attr,
&class_device_attr_wep_undecryptable_count.attr,
&class_device_attr_ack_failure_count.attr,
&class_device_attr_rts_failure_count.attr,
&class_device_attr_fcs_error_count.attr,
&class_device_attr_rts_success_count.attr,
&class_device_attr_num_scans.attr,
#ifdef CONFIG_D80211_DEBUG_COUNTERS
&class_device_attr_tx_handlers_drop.attr,
&class_device_attr_tx_handlers_queued.attr,
&class_device_attr_tx_handlers_drop_unencrypted.attr,
&class_device_attr_tx_handlers_drop_fragment.attr,
&class_device_attr_tx_handlers_drop_wep.attr,
&class_device_attr_tx_handlers_drop_not_assoc.attr,
&class_device_attr_tx_handlers_drop_unauth_port.attr,
&class_device_attr_rx_handlers_drop.attr,
&class_device_attr_rx_handlers_queued.attr,
&class_device_attr_rx_handlers_drop_nullfunc.attr,
&class_device_attr_rx_handlers_drop_defrag.attr,
&class_device_attr_rx_handlers_drop_short.attr,
&class_device_attr_rx_handlers_drop_passive_scan.attr,
&class_device_attr_tx_expand_skb_head.attr,
&class_device_attr_tx_expand_skb_head_cloned.attr,
&class_device_attr_rx_expand_skb_head.attr,
&class_device_attr_rx_expand_skb_head2.attr,
&class_device_attr_rx_handlers_fragments.attr,
&class_device_attr_tx_status_drop.attr,
&class_device_attr_wme_rx_queue.attr,
&class_device_attr_wme_tx_queue.attr,
#endif
NULL,
};
static struct attribute_group ieee80211_stats_group = {
.name = "statistics",
.attrs = ieee80211_stats_attrs,
};
/* attributes in /sys/class/net/X/ */
static ssize_t ieee80211_if_show(struct class_device *cd, char *buf,
ssize_t (*format)(const struct ieee80211_sub_if_data *,
char *))
{
struct net_device *dev = to_net_dev(cd);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
ssize_t ret = -EINVAL;
read_lock(&dev_base_lock);
if (dev->reg_state == NETREG_REGISTERED) {
ret = (*format)(sdata, buf);
}
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) \
{ \
return sprintf(buf, 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) \
{ \
return sprintf(buf, "%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) \
{ \
return sprintf(buf, MAC_FMT "\n", MAC_ARG(sdata->field)); \
}
#define __IEEE80211_IF_SHOW(name) \
static ssize_t ieee80211_if_show_##name(struct class_device *cd, \
char *buf) \
{ \
return ieee80211_if_show(cd, buf, ieee80211_if_fmt_##name); \
} \
static CLASS_DEVICE_ATTR(name, S_IRUGO, ieee80211_if_show_##name, NULL);
#define IEEE80211_IF_SHOW(name, field, format) \
IEEE80211_IF_FMT_##format(name, field) \
__IEEE80211_IF_SHOW(name)
/* common attributes */
IEEE80211_IF_SHOW(channel_use, channel_use, DEC);
IEEE80211_IF_SHOW(drop_unencrypted, drop_unencrypted, DEC);
IEEE80211_IF_SHOW(eapol, eapol, DEC);
IEEE80211_IF_SHOW(ieee8021_x, ieee802_1x, DEC);
/* STA/IBSS attributes */
IEEE80211_IF_SHOW(state, u.sta.state, DEC);
IEEE80211_IF_SHOW(bssid, u.sta.bssid, MAC);
IEEE80211_IF_SHOW(prev_bssid, u.sta.prev_bssid, MAC);
IEEE80211_IF_SHOW(ssid_len, u.sta.ssid_len, SIZE);
IEEE80211_IF_SHOW(aid, u.sta.aid, DEC);
IEEE80211_IF_SHOW(ap_capab, u.sta.ap_capab, HEX);
IEEE80211_IF_SHOW(capab, u.sta.capab, HEX);
IEEE80211_IF_SHOW(extra_ie_len, u.sta.extra_ie_len, SIZE);
IEEE80211_IF_SHOW(auth_tries, u.sta.auth_tries, DEC);
IEEE80211_IF_SHOW(assoc_tries, u.sta.assoc_tries, DEC);
IEEE80211_IF_SHOW(auth_algs, u.sta.auth_algs, HEX);
IEEE80211_IF_SHOW(auth_alg, u.sta.auth_alg, DEC);
IEEE80211_IF_SHOW(auth_transaction, u.sta.auth_transaction, DEC);
static ssize_t ieee80211_if_fmt_flags(const struct
ieee80211_sub_if_data *sdata, char *buf)
{
return sprintf(buf, "%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_SHOW(flags);
/* AP attributes */
IEEE80211_IF_SHOW(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
IEEE80211_IF_SHOW(dtim_period, u.ap.dtim_period, DEC);
IEEE80211_IF_SHOW(dtim_count, u.ap.dtim_count, DEC);
IEEE80211_IF_SHOW(num_beacons, u.ap.num_beacons, DEC);
IEEE80211_IF_SHOW(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
IEEE80211_IF_SHOW(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)
{
return sprintf(buf, "%u\n", skb_queue_len(&sdata->u.ap.ps_bc_buf));
}
__IEEE80211_IF_SHOW(num_buffered_multicast);
static ssize_t ieee80211_if_fmt_beacon_head_len(const struct
ieee80211_sub_if_data *sdata, char *buf)
{
if (sdata->u.ap.beacon_head)
return sprintf(buf, "%d\n", sdata->u.ap.beacon_head_len);
return sprintf(buf, "\n");
}
__IEEE80211_IF_SHOW(beacon_head_len);
static ssize_t ieee80211_if_fmt_beacon_tail_len(const struct
ieee80211_sub_if_data *sdata, char *buf)
{
if (sdata->u.ap.beacon_tail)
return sprintf(buf, "%d\n", sdata->u.ap.beacon_tail_len);
return sprintf(buf, "\n");
}
__IEEE80211_IF_SHOW(beacon_tail_len);
/* WDS attributes */
IEEE80211_IF_SHOW(peer, u.wds.remote_addr, MAC);
/* VLAN attributes */
IEEE80211_IF_SHOW(vlan_id, u.vlan.id, DEC);
/* MONITOR attributes */
static ssize_t ieee80211_if_fmt_mode(const struct
ieee80211_sub_if_data *sdata, char *buf)
{
struct ieee80211_local *local = sdata->local;
return sprintf(buf, "%s\n",
((local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) ||
local->open_count == local->monitors) ?
"hard" : "soft");
}
__IEEE80211_IF_SHOW(mode);
static struct attribute *ieee80211_sta_attrs[] = {
&class_device_attr_channel_use.attr,
&class_device_attr_drop_unencrypted.attr,
&class_device_attr_eapol.attr,
&class_device_attr_ieee8021_x.attr,
&class_device_attr_state.attr,
&class_device_attr_bssid.attr,
&class_device_attr_prev_bssid.attr,
&class_device_attr_ssid_len.attr,
&class_device_attr_aid.attr,
&class_device_attr_ap_capab.attr,
&class_device_attr_capab.attr,
&class_device_attr_extra_ie_len.attr,
&class_device_attr_auth_tries.attr,
&class_device_attr_assoc_tries.attr,
&class_device_attr_auth_algs.attr,
&class_device_attr_auth_alg.attr,
&class_device_attr_auth_transaction.attr,
&class_device_attr_flags.attr,
NULL
};
static struct attribute *ieee80211_ap_attrs[] = {
&class_device_attr_channel_use.attr,
&class_device_attr_drop_unencrypted.attr,
&class_device_attr_eapol.attr,
&class_device_attr_ieee8021_x.attr,
&class_device_attr_num_sta_ps.attr,
&class_device_attr_dtim_period.attr,
&class_device_attr_dtim_count.attr,
&class_device_attr_num_beacons.attr,
&class_device_attr_force_unicast_rateidx.attr,
&class_device_attr_max_ratectrl_rateidx.attr,
&class_device_attr_num_buffered_multicast.attr,
&class_device_attr_beacon_head_len.attr,
&class_device_attr_beacon_tail_len.attr,
NULL
};
static struct attribute *ieee80211_wds_attrs[] = {
&class_device_attr_channel_use.attr,
&class_device_attr_drop_unencrypted.attr,
&class_device_attr_eapol.attr,
&class_device_attr_ieee8021_x.attr,
&class_device_attr_peer.attr,
NULL
};
static struct attribute *ieee80211_vlan_attrs[] = {
&class_device_attr_channel_use.attr,
&class_device_attr_drop_unencrypted.attr,
&class_device_attr_eapol.attr,
&class_device_attr_ieee8021_x.attr,
&class_device_attr_vlan_id.attr,
NULL
};
static struct attribute *ieee80211_monitor_attrs[] = {
&class_device_attr_mode.attr,
NULL
};
static struct attribute_group ieee80211_sta_group = {
.name = "sta",
.attrs = ieee80211_sta_attrs,
};
static struct attribute_group ieee80211_ap_group = {
.name = "ap",
.attrs = ieee80211_ap_attrs,
};
static struct attribute_group ieee80211_wds_group = {
.name = "wds",
.attrs = ieee80211_wds_attrs,
};
static struct attribute_group ieee80211_vlan_group = {
.name = "vlan",
.attrs = ieee80211_vlan_attrs,
};
static struct attribute_group ieee80211_monitor_group = {
.name = "monitor",
.attrs = ieee80211_monitor_attrs,
};
/* /sys/class/ieee80211/phyX functions */
static void ieee80211_class_dev_release(struct class_device *dev)
{
ieee80211_release_hw(to_ieee80211_local(dev));
}
#ifdef CONFIG_HOTPLUG
static int ieee80211_uevent(struct class_device *cd, char **envp,
int num_envp, char *buf, int size)
{
struct ieee80211_local *local = to_ieee80211_local(cd);
if (num_envp < 2)
return -ENOMEM;
envp[0] = buf;
if (snprintf(buf, size, "IEEE80211_DEV=phy%d",
local->hw.index) + 1 >= size)
return -ENOMEM;
envp[1] = NULL;
return 0;
}
#endif
static struct class ieee80211_class = {
.name = "ieee80211",
.class_dev_attrs = ieee80211_class_dev_attrs,
.release = ieee80211_class_dev_release,
#ifdef CONFIG_HOTPLUG
.uevent = ieee80211_uevent,
#endif
};
void ieee80211_dev_sysfs_init(struct ieee80211_local *local)
{
local->class_dev.class = &ieee80211_class;
local->class_dev.class_data = local;
class_device_initialize(&local->class_dev);
}
void ieee80211_dev_sysfs_put(struct ieee80211_local *local)
{
class_device_put(&local->class_dev);
}
int ieee80211_dev_sysfs_add(struct ieee80211_local *local)
{
int res;
snprintf(local->class_dev.class_id, BUS_ID_SIZE,
"phy%d", local->hw.index);
res = class_device_add(&local->class_dev);
if (res)
return res;
res = sysfs_create_group(&local->class_dev.kobj,
&ieee80211_stats_group);
if (res)
class_device_del(&local->class_dev);
return res;
}
void ieee80211_dev_sysfs_del(struct ieee80211_local *local)
{
sysfs_remove_group(&local->class_dev.kobj, &ieee80211_stats_group);
class_device_del(&local->class_dev);
}
/* /sys/class/net/X functions */
static void __ieee80211_remove_if_group(struct kobject *kobj,
struct ieee80211_sub_if_data *sdata)
{
if (sdata->sysfs_group) {
sysfs_remove_group(kobj, sdata->sysfs_group);
sdata->sysfs_group = NULL;
}
}
static inline void ieee80211_remove_if_group(struct kobject *kobj,
struct net_device *dev)
{
__ieee80211_remove_if_group(kobj, IEEE80211_DEV_TO_SUB_IF(dev));
}
static int ieee80211_add_if_group(struct kobject *kobj,
struct net_device *dev)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
int res = 0;
__ieee80211_remove_if_group(kobj, sdata);
switch (sdata->type) {
case IEEE80211_IF_TYPE_STA:
sdata->sysfs_group = &ieee80211_sta_group;
break;
case IEEE80211_IF_TYPE_AP:
sdata->sysfs_group = &ieee80211_ap_group;
break;
case IEEE80211_IF_TYPE_WDS:
sdata->sysfs_group = &ieee80211_wds_group;
break;
case IEEE80211_IF_TYPE_VLAN:
sdata->sysfs_group = &ieee80211_vlan_group;
break;
case IEEE80211_IF_TYPE_MNTR:
sdata->sysfs_group = &ieee80211_monitor_group;
break;
default:
goto out;
}
res = sysfs_create_group(kobj, sdata->sysfs_group);
if (res)
sdata->sysfs_group = NULL;
out:
return res;
}
int ieee80211_sysfs_change_if_type(struct net_device *dev)
{
return ieee80211_add_if_group(&dev->class_dev.kobj, dev);
}
int ieee80211_sysfs_add_netdevice(struct net_device *dev)
{
struct ieee80211_local *local = dev->ieee80211_ptr;
int res;
res = sysfs_create_link(&dev->class_dev.kobj, &local->class_dev.kobj,
"hw");
if (res)
goto err_out;
res = ieee80211_add_if_group(&dev->class_dev.kobj, dev);
if (res)
goto err_link;
res = ieee80211_key_kset_sysfs_register(IEEE80211_DEV_TO_SUB_IF(dev));
return res;
err_link:
sysfs_remove_link(&dev->class_dev.kobj, "hw");
err_out:
return res;
}
void ieee80211_sysfs_remove_netdevice(struct net_device *dev)
{
ieee80211_key_kset_sysfs_unregister(IEEE80211_DEV_TO_SUB_IF(dev));
ieee80211_remove_if_group(&dev->class_dev.kobj, dev);
sysfs_remove_link(&dev->class_dev.kobj, "hw");
}
/* general module functions */
int ieee80211_sysfs_init(void)
{
return class_register(&ieee80211_class);
}
void ieee80211_sysfs_deinit(void)
{
class_unregister(&ieee80211_class);
}

437
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/*
* Copyright 2003-2005, 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.
*/
#include <linux/kobject.h>
#include <linux/sysfs.h>
#include "ieee80211_i.h"
#include "ieee80211_key.h"
#include "sta_info.h"
static ssize_t sta_sysfs_show(struct kobject *, struct attribute *, char *);
static ssize_t key_sysfs_show(struct kobject *, struct attribute *, char *);
static struct sysfs_ops sta_ktype_ops = {
.show = sta_sysfs_show,
};
static struct sysfs_ops key_ktype_ops = {
.show = key_sysfs_show,
};
/* sta attributtes */
#define STA_SHOW(name, field, format_string) \
static ssize_t show_sta_##name(const struct sta_info *sta, char *buf) \
{ \
return sprintf(buf, format_string, sta->field); \
}
#define STA_SHOW_D(name, field) STA_SHOW(name, field, "%d\n")
#define STA_SHOW_U(name, field) STA_SHOW(name, field, "%u\n")
#define STA_SHOW_LU(name, field) STA_SHOW(name, field, "%lu\n")
#define STA_SHOW_S(name, field) STA_SHOW(name, field, "%s\n")
#define STA_SHOW_RATE(name, field) \
static ssize_t show_sta_##name(const struct sta_info *sta, char *buf) \
{ \
struct ieee80211_local *local = sta->dev->ieee80211_ptr; \
return sprintf(buf, "%d\n", \
(sta->field >= 0 && \
sta->field < local->num_curr_rates) ? \
local->curr_rates[sta->field].rate : -1); \
}
#define __STA_ATTR(name) \
static struct sta_attribute sta_attr_##name = \
__ATTR(name, S_IRUGO, show_sta_##name, NULL)
#define STA_ATTR(name, field, format) \
STA_SHOW_##format(name, field) \
__STA_ATTR(name)
STA_ATTR(aid, aid, D);
STA_ATTR(key_idx_compression, key_idx_compression, D);
STA_ATTR(dev, dev->name, S);
STA_ATTR(vlan_id, vlan_id, D);
STA_ATTR(rx_packets, rx_packets, LU);
STA_ATTR(tx_packets, tx_packets, LU);
STA_ATTR(rx_bytes, rx_bytes, LU);
STA_ATTR(tx_bytes, tx_bytes, LU);
STA_ATTR(rx_duplicates, num_duplicates, LU);
STA_ATTR(rx_fragments, rx_fragments, LU);
STA_ATTR(rx_dropped, rx_dropped, LU);
STA_ATTR(tx_fragments, tx_fragments, LU);
STA_ATTR(tx_filtered, tx_filtered_count, LU);
STA_ATTR(txrate, txrate, RATE);
STA_ATTR(last_txrate, last_txrate, RATE);
STA_ATTR(tx_retry_failed, tx_retry_failed, LU);
STA_ATTR(tx_retry_count, tx_retry_count, LU);
STA_ATTR(last_rssi, last_rssi, D);
STA_ATTR(last_signal, last_signal, D);
STA_ATTR(last_noise, last_noise, D);
STA_ATTR(channel_use, channel_use, D);
STA_ATTR(wep_weak_iv_count, wep_weak_iv_count, D);
static ssize_t show_sta_flags(const struct sta_info *sta, char *buf)
{
return sprintf(buf, "%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_WDS ? "WDS\n" : "");
}
__STA_ATTR(flags);
static ssize_t show_sta_num_ps_buf_frames(const struct sta_info *sta, char *buf)
{
return sprintf(buf, "%u\n", skb_queue_len(&sta->ps_tx_buf));
}
__STA_ATTR(num_ps_buf_frames);
static ssize_t show_sta_last_ack_rssi(const struct sta_info *sta, char *buf)
{
return sprintf(buf, "%d %d %d\n", sta->last_ack_rssi[0],
sta->last_ack_rssi[1], sta->last_ack_rssi[2]);
}
__STA_ATTR(last_ack_rssi);
static ssize_t show_sta_last_ack_ms(const struct sta_info *sta, char *buf)
{
return sprintf(buf, "%d\n", sta->last_ack ?
jiffies_to_msecs(jiffies - sta->last_ack) : -1);
}
__STA_ATTR(last_ack_ms);
static ssize_t show_sta_inactive_ms(const struct sta_info *sta, char *buf)
{
return sprintf(buf, "%d\n", jiffies_to_msecs(jiffies - sta->last_rx));
}
__STA_ATTR(inactive_ms);
static ssize_t show_sta_last_seq_ctrl(const struct sta_info *sta, char *buf)
{
int i;
char *p = buf;
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += sprintf(p, "%x ", sta->last_seq_ctrl[i]);
p += sprintf(p, "\n");
return (p - buf);
}
__STA_ATTR(last_seq_ctrl);
#ifdef CONFIG_D80211_DEBUG_COUNTERS
static ssize_t show_sta_wme_rx_queue(const struct sta_info *sta, char *buf)
{
int i;
char *p = buf;
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += sprintf(p, "%u ", sta->wme_rx_queue[i]);
p += sprintf(p, "\n");
return (p - buf);
}
__STA_ATTR(wme_rx_queue);
static ssize_t show_sta_wme_tx_queue(const struct sta_info *sta, char *buf)
{
int i;
char *p = buf;
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += sprintf(p, "%u ", sta->wme_tx_queue[i]);
p += sprintf(p, "\n");
return (p - buf);
}
__STA_ATTR(wme_tx_queue);
#endif
static struct attribute *sta_ktype_attrs[] = {
&sta_attr_aid.attr,
&sta_attr_key_idx_compression.attr,
&sta_attr_dev.attr,
&sta_attr_vlan_id.attr,
&sta_attr_rx_packets.attr,
&sta_attr_tx_packets.attr,
&sta_attr_rx_bytes.attr,
&sta_attr_tx_bytes.attr,
&sta_attr_rx_duplicates.attr,
&sta_attr_rx_fragments.attr,
&sta_attr_rx_dropped.attr,
&sta_attr_tx_fragments.attr,
&sta_attr_tx_filtered.attr,
&sta_attr_txrate.attr,
&sta_attr_last_txrate.attr,
&sta_attr_tx_retry_failed.attr,
&sta_attr_tx_retry_count.attr,
&sta_attr_last_rssi.attr,
&sta_attr_last_signal.attr,
&sta_attr_last_noise.attr,
&sta_attr_channel_use.attr,
&sta_attr_wep_weak_iv_count.attr,
&sta_attr_flags.attr,
&sta_attr_num_ps_buf_frames.attr,
&sta_attr_last_ack_rssi.attr,
&sta_attr_last_ack_ms.attr,
&sta_attr_inactive_ms.attr,
&sta_attr_last_seq_ctrl.attr,
#ifdef CONFIG_D80211_DEBUG_COUNTERS
&sta_attr_wme_rx_queue.attr,
&sta_attr_wme_tx_queue.attr,
#endif
NULL
};
/* keys attributtes */
struct key_attribute {
struct attribute attr;
ssize_t (*show)(const struct ieee80211_key *, char *buf);
ssize_t (*store)(struct ieee80211_key *, const char *buf,
size_t count);
};
#define KEY_SHOW(name, field, format_string) \
static ssize_t show_key_##name(const struct ieee80211_key *key, char *buf)\
{ \
return sprintf(buf, format_string, key->field); \
}
#define KEY_SHOW_D(name, field) KEY_SHOW(name, field, "%d\n")
#define __KEY_ATTR(name) \
static struct key_attribute key_attr_##name = \
__ATTR(name, S_IRUSR, show_key_##name, NULL)
#define KEY_ATTR(name, field, format) \
KEY_SHOW_##format(name, field) \
__KEY_ATTR(name)
KEY_ATTR(length, keylen, D);
KEY_ATTR(sw_encrypt, force_sw_encrypt, D);
KEY_ATTR(index, keyidx, D);
KEY_ATTR(hw_index, hw_key_idx, D);
KEY_ATTR(tx_rx_count, tx_rx_count, D);
static ssize_t show_key_algorithm(const struct ieee80211_key *key, char *buf)
{
char *alg;
switch (key->alg) {
case ALG_WEP:
alg = "WEP";
break;
case ALG_TKIP:
alg = "TKIP";
break;
case ALG_CCMP:
alg = "CCMP";
break;
default:
return 0;
}
return sprintf(buf, "%s\n", alg);
}
__KEY_ATTR(algorithm);
static ssize_t show_key_tx_spec(const struct ieee80211_key *key, char *buf)
{
const u8 *tpn;
switch (key->alg) {
case ALG_WEP:
return sprintf(buf, "\n");
case ALG_TKIP:
return sprintf(buf, "%08x %04x\n", key->u.tkip.iv32,
key->u.tkip.iv16);
case ALG_CCMP:
tpn = key->u.ccmp.tx_pn;
return sprintf(buf, "%02x%02x%02x%02x%02x%02x\n", tpn[0],
tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
default:
return 0;
}
}
__KEY_ATTR(tx_spec);
static ssize_t show_key_rx_spec(const struct ieee80211_key *key, char *buf)
{
int i;
const u8 *rpn;
char *p = buf;
switch (key->alg) {
case ALG_WEP:
return sprintf(buf, "\n");
case ALG_TKIP:
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += sprintf(p, "%08x %04x\n",
key->u.tkip.iv32_rx[i],
key->u.tkip.iv16_rx[i]);
return (p - buf);
case ALG_CCMP:
for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
rpn = key->u.ccmp.rx_pn[i];
p += sprintf(p, "%02x%02x%02x%02x%02x%02x\n", rpn[0],
rpn[1], rpn[2], rpn[3], rpn[4], rpn[5]);
}
return (p - buf);
default:
return 0;
}
}
__KEY_ATTR(rx_spec);
static ssize_t show_key_replays(const struct ieee80211_key *key, char *buf)
{
if (key->alg != ALG_CCMP)
return 0;
return sprintf(buf, "%u\n", key->u.ccmp.replays);
}
__KEY_ATTR(replays);
static ssize_t show_key_key(const struct ieee80211_key *key, char *buf)
{
int i;
char *p = buf;
for (i = 0; i < key->keylen; i++)
p += sprintf(p, "%02x", key->key[i]);
p += sprintf(p, "\n");
return (p - buf);
}
__KEY_ATTR(key);
static struct attribute *key_ktype_attrs[] = {
&key_attr_length.attr,
&key_attr_sw_encrypt.attr,
&key_attr_index.attr,
&key_attr_hw_index.attr,
&key_attr_tx_rx_count.attr,
&key_attr_algorithm.attr,
&key_attr_tx_spec.attr,
&key_attr_rx_spec.attr,
&key_attr_replays.attr,
&key_attr_key.attr,
NULL
};
/* structures and functions */
static struct kobj_type sta_ktype = {
.release = sta_info_release,
.sysfs_ops = &sta_ktype_ops,
.default_attrs = sta_ktype_attrs,
};
static struct kobj_type key_ktype = {
.release = ieee80211_key_release,
.sysfs_ops = &key_ktype_ops,
.default_attrs = key_ktype_attrs,
};
static ssize_t sta_sysfs_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct sta_attribute *sta_attr;
struct sta_info *sta;
sta_attr = container_of(attr, struct sta_attribute, attr);
sta = container_of(kobj, struct sta_info, kobj);
return sta_attr->show(sta, buf);
}
static ssize_t key_sysfs_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct key_attribute *key_attr;
struct ieee80211_key *key;
key_attr = container_of(attr, struct key_attribute, attr);
key = container_of(kobj, struct ieee80211_key, kobj);
return key_attr->show(key, buf);
}
int ieee80211_sta_kset_sysfs_register(struct ieee80211_local *local)
{
int res;
res = kobject_set_name(&local->sta_kset.kobj, "sta");
if (res)
return res;
local->sta_kset.kobj.parent = &local->class_dev.kobj;
local->sta_kset.ktype = &sta_ktype;
return kset_register(&local->sta_kset);
}
void ieee80211_sta_kset_sysfs_unregister(struct ieee80211_local *local)
{
kset_unregister(&local->sta_kset);
}
int ieee80211_key_kset_sysfs_register(struct ieee80211_sub_if_data *sdata)
{
int res;
res = kobject_set_name(&sdata->key_kset.kobj, "keys");
if (res)
return res;
sdata->key_kset.kobj.parent = &sdata->dev->class_dev.kobj;
sdata->key_kset.ktype = &key_ktype;
return kset_register(&sdata->key_kset);
}
void ieee80211_key_kset_sysfs_unregister(struct ieee80211_sub_if_data *sdata)
{
kset_unregister(&sdata->key_kset);
}
int ieee80211_sta_sysfs_add(struct sta_info *sta)
{
return kobject_add(&sta->kobj);
}
void ieee80211_sta_sysfs_remove(struct sta_info *sta)
{
kobject_del(&sta->kobj);
}
void ieee80211_key_sysfs_set_kset(struct ieee80211_key *key, struct kset *kset)
{
key->kobj.kset = kset;
if (!kset)
key->kobj.ktype = &key_ktype;
}
int ieee80211_key_sysfs_add(struct ieee80211_key *key)
{
return kobject_add(&key->kobj);
}
void ieee80211_key_sysfs_remove(struct ieee80211_key *key)
{
if (key)
kobject_del(&key->kobj);
}
int ieee80211_key_sysfs_add_default(struct ieee80211_sub_if_data *sdata)
{
return sysfs_create_link(&sdata->key_kset.kobj,
&sdata->default_key->kobj, "default");
}
void ieee80211_key_sysfs_remove_default(struct ieee80211_sub_if_data *sdata)
{
sysfs_remove_link(&sdata->key_kset.kobj, "default");
}

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package/d80211/src/include/net/d80211.h Normal file
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package/d80211/src/include/net/d80211_common.h Normal file
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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 D80211_COMMON_H
#define D80211_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 /* D80211_COMMON_H */

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/*
* IEEE 802.11 -- shared defines for 80211.o and hostapd
* Copyright 2002, 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 D802_11_MGMT_H
#define D802_11_MGMT_H
#include <linux/types.h>
struct ieee80211_mgmt {
__le16 frame_control;
__le16 duration;
u8 da[6];
u8 sa[6];
u8 bssid[6];
__le16 seq_ctrl;
union {
struct {
__le16 auth_alg;
__le16 auth_transaction;
__le16 status_code;
/* possibly followed by Challenge text */
u8 variable[0];
} __attribute__ ((packed)) auth;
struct {
__le16 reason_code;
} __attribute__ ((packed)) deauth;
struct {
__le16 capab_info;
__le16 listen_interval;
/* followed by SSID and Supported rates */
u8 variable[0];
} __attribute__ ((packed)) assoc_req;
struct {
__le16 capab_info;
__le16 status_code;
__le16 aid;
/* followed by Supported rates */
u8 variable[0];
} __attribute__ ((packed)) assoc_resp, reassoc_resp;
struct {
__le16 capab_info;
__le16 listen_interval;
u8 current_ap[6];
/* followed by SSID and Supported rates */
u8 variable[0];
} __attribute__ ((packed)) reassoc_req;
struct {
__le16 reason_code;
} __attribute__ ((packed)) disassoc;
struct {
__le64 timestamp;
__le16 beacon_int;
__le16 capab_info;
/* followed by some of SSID, Supported rates,
* FH Params, DS Params, CF Params, IBSS Params, TIM */
u8 variable[0];
} __attribute__ ((packed)) beacon;
struct {
/* only variable items: SSID, Supported rates */
u8 variable[0];
} __attribute__ ((packed)) probe_req;
struct {
__le64 timestamp;
__le16 beacon_int;
__le16 capab_info;
/* followed by some of SSID, Supported rates,
* FH Params, DS Params, CF Params, IBSS Params */
u8 variable[0];
} __attribute__ ((packed)) probe_resp;
struct {
u8 category;
union {
struct {
u8 action_code;
u8 dialog_token;
u8 status_code;
u8 variable[0];
} __attribute__ ((packed)) wme_action;
struct{
u8 action_code;
u8 element_id;
u8 length;
u8 switch_mode;
u8 new_chan;
u8 switch_count;
} __attribute__((packed)) chan_switch;
} u;
} __attribute__ ((packed)) action;
} u;
} __attribute__ ((packed));
/* Authentication algorithms */
#define WLAN_AUTH_OPEN 0
#define WLAN_AUTH_SHARED_KEY 1
#define WLAN_AUTH_LEAP 128
#define WLAN_AUTH_CHALLENGE_LEN 128
#define WLAN_CAPABILITY_ESS BIT(0)
#define WLAN_CAPABILITY_IBSS BIT(1)
#define WLAN_CAPABILITY_CF_POLLABLE BIT(2)
#define WLAN_CAPABILITY_CF_POLL_REQUEST BIT(3)
#define WLAN_CAPABILITY_PRIVACY BIT(4)
#define WLAN_CAPABILITY_SHORT_PREAMBLE BIT(5)
#define WLAN_CAPABILITY_PBCC BIT(6)
#define WLAN_CAPABILITY_CHANNEL_AGILITY BIT(7)
/* 802.11h */
#define WLAN_CAPABILITY_SPECTRUM_MGMT BIT(8)
#define WLAN_CAPABILITY_SHORT_SLOT_TIME BIT(10)
#define WLAN_CAPABILITY_DSSS_OFDM BIT(13)
/* Status codes */
enum ieee80211_statuscode {
WLAN_STATUS_SUCCESS = 0,
WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
WLAN_STATUS_CAPS_UNSUPPORTED = 10,
WLAN_STATUS_REASSOC_NO_ASSOC = 11,
WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
WLAN_STATUS_CHALLENGE_FAIL = 15,
WLAN_STATUS_AUTH_TIMEOUT = 16,
WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
WLAN_STATUS_ASSOC_DENIED_RATES = 18,
/* 802.11b */
WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
/* 802.11h */
WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
/* 802.11g */
WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
/* 802.11i */
WLAN_STATUS_INVALID_IE = 40,
WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
WLAN_STATUS_INVALID_AKMP = 43,
WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
};
/* Reason codes */
enum ieee80211_reasoncode {
WLAN_REASON_UNSPECIFIED = 1,
WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
WLAN_REASON_DEAUTH_LEAVING = 3,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
WLAN_REASON_DISASSOC_AP_BUSY = 5,
WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
/* 802.11h */
WLAN_REASON_DISASSOC_BAD_POWER = 10,
WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
/* 802.11i */
WLAN_REASON_INVALID_IE = 13,
WLAN_REASON_MIC_FAILURE = 14,
WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
WLAN_REASON_IE_DIFFERENT = 17,
WLAN_REASON_INVALID_GROUP_CIPHER = 18,
WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
WLAN_REASON_INVALID_AKMP = 20,
WLAN_REASON_UNSUPP_RSN_VERSION = 21,
WLAN_REASON_INVALID_RSN_IE_CAP = 22,
WLAN_REASON_IEEE8021X_FAILED = 23,
WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
};
/* Information Element IDs */
enum ieee80211_eid {
WLAN_EID_SSID = 0,
WLAN_EID_SUPP_RATES = 1,
WLAN_EID_FH_PARAMS = 2,
WLAN_EID_DS_PARAMS = 3,
WLAN_EID_CF_PARAMS = 4,
WLAN_EID_TIM = 5,
WLAN_EID_IBSS_PARAMS = 6,
WLAN_EID_CHALLENGE = 16,
/* 802.11d */
WLAN_EID_COUNTRY = 7,
WLAN_EID_HP_PARAMS = 8,
WLAN_EID_HP_TABLE = 9,
WLAN_EID_REQUEST = 10,
/* 802.11h */
WLAN_EID_PWR_CONSTRAINT = 32,
WLAN_EID_PWR_CAPABILITY = 33,
WLAN_EID_TPC_REQUEST = 34,
WLAN_EID_TPC_REPORT = 35,
WLAN_EID_SUPPORTED_CHANNELS = 36,
WLAN_EID_CHANNEL_SWITCH = 37,
WLAN_EID_MEASURE_REQUEST = 38,
WLAN_EID_MEASURE_REPORT = 39,
WLAN_EID_QUIET = 40,
WLAN_EID_IBSS_DFS = 41,
/* 802.11g */
WLAN_EID_ERP_INFO = 42,
WLAN_EID_EXT_SUPP_RATES = 50,
/* 802.11i */
WLAN_EID_RSN = 48,
WLAN_EID_WPA = 221,
WLAN_EID_GENERIC = 221,
WLAN_EID_VENDOR_SPECIFIC = 221,
WLAN_EID_QOS_PARAMETER = 222
};
#endif /* D802_11_MGMT_H */

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/*
* IEEE 802.11 -- shared defines for low-level drivers, 80211.o, and hostapd
* 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 D80211_SHARED_H
#define D80211_SHARED_H
/* 802.11g is backwards-compatible with 802.11b, so a wlan card can
* actually be both in 11b and 11g modes at the same time. */
enum {
MODE_IEEE80211A = 0 /* IEEE 802.11a */,
MODE_IEEE80211B = 1 /* IEEE 802.11b only */,
MODE_ATHEROS_TURBO = 2 /* Atheros Turbo mode (2x.11a at 5 GHz) */,
MODE_IEEE80211G = 3 /* IEEE 802.11g (and 802.11b compatibility) */,
MODE_ATHEROS_TURBOG = 4 /* Atheros Turbo mode (2x.11g at 2.4 GHz) */,
NUM_IEEE80211_MODES = 5
};
#define IEEE80211_CHAN_W_SCAN 0x00000001
#define IEEE80211_CHAN_W_ACTIVE_SCAN 0x00000002
#define IEEE80211_CHAN_W_IBSS 0x00000004
/* Low-level driver should set PREAMBLE2, OFDM, CCK, and TURBO flags.
* BASIC, SUPPORTED, ERP, and MANDATORY flags are set in 80211.o based on the
* configuration. */
#define IEEE80211_RATE_ERP 0x00000001
#define IEEE80211_RATE_BASIC 0x00000002
#define IEEE80211_RATE_PREAMBLE2 0x00000004
#define IEEE80211_RATE_SUPPORTED 0x00000010
#define IEEE80211_RATE_OFDM 0x00000020
#define IEEE80211_RATE_CCK 0x00000040
#define IEEE80211_RATE_TURBO 0x00000080
#define IEEE80211_RATE_MANDATORY 0x00000100
#define IEEE80211_RATE_CCK_2 (IEEE80211_RATE_CCK | IEEE80211_RATE_PREAMBLE2)
#define IEEE80211_RATE_MODULATION(f) \
(f & (IEEE80211_RATE_CCK | IEEE80211_RATE_OFDM))
#endif /* D80211_SHARED_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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/*
* 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/d80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.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;
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;
}
maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
if (i > local->num_curr_rates)
i = local->num_curr_rates - 2;
while (i + 1 < local->num_curr_rates) {
i++;
if (sta->supp_rates & BIT(i) &&
local->curr_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;
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;
}
if (i > local->num_curr_rates)
i = local->num_curr_rates;
while (i > 0) {
i--;
if (sta->supp_rates & BIT(i) &&
local->curr_rates[i].flags & IEEE80211_RATE_SUPPORTED) {
sta->txrate = i;
break;
}
}
}
static struct ieee80211_rate *
rate_control_lowest_rate(struct ieee80211_local *local)
{
int i;
for (i = 0; i < local->num_curr_rates; i++) {
struct ieee80211_rate *rate = &local->curr_rates[i];
if (rate->flags & IEEE80211_RATE_SUPPORTED
)
return rate;
}
printk(KERN_DEBUG "rate_control_lowest_rate - no supported rates "
"found\n");
return &local->curr_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;
};
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 = 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 = sta->antenna_sel == 1 ? 2 : 1;
if (local->sta_antenna_sel == STA_ANTENNA_SEL_SW_CTRL_DEBUG) {
printk(KERN_DEBUG "%s: " MAC_FMT " TX antenna --> %d "
"(@%lu)\n",
dev->name, MAC_ARG(hdr->addr1),
sta->antenna_sel, 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 += local->curr_rates[sta->txrate].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_D80211_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_D80211_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 = dev->ieee80211_ptr;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
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);
}
sta = sta_info_get(local, hdr->addr1);
if (!sta)
return rate_control_lowest_rate(local);
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 >= local->num_curr_rates)
rateidx = local->num_curr_rates - 1;
sta->last_txrate = rateidx;
nonerp_idx = rateidx;
while (nonerp_idx > 0 &&
((local->curr_rates[nonerp_idx].flags & IEEE80211_RATE_ERP) ||
!(local->curr_rates[nonerp_idx].flags &
IEEE80211_RATE_SUPPORTED) ||
!(sta->supp_rates & BIT(nonerp_idx))))
nonerp_idx--;
extra->nonerp_idx = nonerp_idx;
extra->nonerp = &local->curr_rates[extra->nonerp_idx];
sta_info_put(sta);
return &local->curr_rates[rateidx];
}
static void rate_control_simple_rate_init(void *priv, void *priv_sta,
struct ieee80211_local *local,
struct sta_info *sta)
{
int i;
sta->txrate = 0;
/* TODO: what is a good starting rate for STA? About middle? Maybe not
* the lowest or the highest rate.. Could consider using RSSI from
* previous packets? Need to have IEEE 802.1X auth succeed immediately
* after assoc.. */
for (i = 0; i < local->num_curr_rates; i++) {
if ((sta->supp_rates & BIT(i)) &&
(local->curr_rates[i].flags & IEEE80211_RATE_SUPPORTED))
sta->txrate = i;
}
}
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);
}
static ssize_t show_sta_tx_avg_rate_sum(const struct sta_info *sta, char *buf)
{
struct sta_rate_control *srctrl = sta->rate_ctrl_priv;
return sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum);
}
static ssize_t show_sta_tx_avg_rate_num(const struct sta_info *sta, char *buf)
{
struct sta_rate_control *srctrl = sta->rate_ctrl_priv;
return sprintf(buf, "%d\n", srctrl->tx_avg_rate_num);
}
static struct sta_attribute sta_attr_tx_avg_rate_sum =
__ATTR(tx_avg_rate_sum, S_IRUSR, show_sta_tx_avg_rate_sum, NULL);
static struct sta_attribute sta_attr_tx_avg_rate_num =
__ATTR(tx_avg_rate_num, S_IRUSR, show_sta_tx_avg_rate_num, NULL);
static struct attribute *rate_control_simple_sta_attrs[] = {
&sta_attr_tx_avg_rate_sum.attr,
&sta_attr_tx_avg_rate_num.attr,
NULL,
};
static struct attribute_group rate_control_simple_sta_group = {
.name = "rate_control_simple",
.attrs = rate_control_simple_sta_attrs,
};
static int rate_control_simple_add_sta_attrs(void *priv, void *priv_sta,
struct kobject *kobj)
{
return sysfs_create_group(kobj, &rate_control_simple_sta_group);
}
static void rate_control_simple_remove_sta_attrs(void *priv, void *priv_sta,
struct kobject *kobj)
{
sysfs_remove_group(kobj, &rate_control_simple_sta_group);
}
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,
.add_sta_attrs = rate_control_simple_add_sta_attrs,
.remove_sta_attrs = rate_control_simple_remove_sta_attrs,
};
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");

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/*
* Copyright 2002-2005, 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/module.h>
#include <linux/init.h>
#include <linux/kobject.h>
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <net/d80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "sta_info.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)
{
struct sta_info *s;
s = local->sta_hash[STA_HASH(sta->addr)];
if (!s)
return;
if (memcmp(s->addr, sta->addr, ETH_ALEN) == 0) {
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)
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 struct sta_info *__sta_info_get(struct sta_info *sta)
{
return kobject_get(&sta->kobj) ? sta : NULL;
}
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);
int sta_info_min_txrate_get(struct ieee80211_local *local)
{
struct sta_info *sta;
int min_txrate = 9999999;
int i;
spin_lock_bh(&local->sta_lock);
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 min_txrate;
}
void sta_info_put(struct sta_info *sta)
{
kobject_put(&sta->kobj);
}
EXPORT_SYMBOL(sta_info_put);
void sta_info_release(struct kobject *kobj)
{
struct sta_info *sta = container_of(kobj, struct sta_info, kobj);
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);
kfree(sta);
}
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;
if (kobject_set_name(&sta->kobj, MAC_FMT, MAC_ARG(addr))) {
kfree(sta);
return NULL;
}
sta->kobj.kset = &local->sta_kset;
kobject_init(&sta->kobj);
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);
kobject_put(&sta->kobj);
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_D80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Added STA " MAC_FMT "\n",
local->mdev->name, MAC_ARG(addr));
#endif /* CONFIG_D80211_VERBOSE_DEBUG */
if (!in_interrupt()) {
sta->sysfs_registered = 1;
ieee80211_sta_sysfs_add(sta);
rate_control_add_sta_attrs(sta, &sta->kobj);
} else {
/* procfs entry adding might sleep, so schedule process context
* task for adding proc entry for STAs that do not yet have
* one. */
schedule_work(&local->sta_proc_add);
}
return sta;
}
static void finish_sta_info_free(struct ieee80211_local *local,
struct sta_info *sta)
{
#ifdef CONFIG_D80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Removed STA " MAC_FMT "\n",
local->mdev->name, MAC_ARG(sta->addr));
#endif /* CONFIG_D80211_VERBOSE_DEBUG */
if (sta->key) {
ieee80211_key_sysfs_remove(sta->key);
ieee80211_key_free(sta->key);
sta->key = NULL;
}
rate_control_remove_sta_attrs(sta, &sta->kobj);
ieee80211_sta_sysfs_remove(sta);
sta_info_put(sta);
}
void sta_info_free(struct sta_info *sta, int locked)
{
struct sk_buff *skb;
struct ieee80211_local *local = sta->local;
struct ieee80211_sub_if_data *sdata;
if (!locked)
spin_lock_bh(&local->sta_lock);
sta_info_hash_del(local, sta);
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);
if (!locked)
spin_unlock_bh(&local->sta_lock);
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;
}
if (in_atomic()) {
list_add(&sta->list, &local->deleted_sta_list);
schedule_work(&local->sta_proc_add);
} else
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);
}
static void sta_info_proc_add_task(void *data)
{
struct ieee80211_local *local = data;
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->sysfs_registered) {
sta = tmp;
__sta_info_get(sta);
break;
}
}
spin_unlock_bh(&local->sta_lock);
if (!sta)
break;
sta->sysfs_registered = 1;
ieee80211_sta_sysfs_add(sta);
rate_control_add_sta_attrs(sta, &sta->kobj);
sta_info_put(sta);
}
}
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;
INIT_WORK(&local->sta_proc_add, sta_info_proc_add_task, local);
}
int sta_info_start(struct ieee80211_local *local)
{
int res;
res = ieee80211_sta_kset_sysfs_register(local);
if (res)
return res;
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 sysfs sta entries are
* unregistered. We don't need locking at this
* point. */
sta_info_free(sta, 0);
}
ieee80211_sta_kset_sysfs_unregister(local);
}
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->local, 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 "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_WDS BIT(27)
struct sta_info {
struct list_head list;
struct kobject kobj;
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;
int antenna_sel;
int key_idx_compression; /* key table index for compression and TX
* filtering; used only if sta->key is not
* set */
unsigned int sysfs_registered:1;
unsigned int assoc_ap:1; /* whether this is an AP that we are
* associated with as a client */
#ifdef CONFIG_HOSTAPD_WPA_TESTING
u32 wpa_trigger;
#endif /* CONFIG_HOSTAPD_WPA_TESTING */
#ifdef CONFIG_D80211_DEBUG_COUNTERS
unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
#endif /* CONFIG_D80211_DEBUG_COUNTERS */
int vlan_id;
u16 listen_interval;
};
/* 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_release(struct kobject *kobj);
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/d80211.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 <asm/scatterlist.h>
#include <net/d80211.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;
}

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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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/*
* 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/d80211.h>
#include "ieee80211_i.h"
#include "wme.h"
#define CHILD_QDISC_OPS pfifo_qdisc_ops
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;
/* 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 */
tid = qc[0] & QOS_CONTROL_TID_MASK;
} 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 */
}
}
#ifdef CONFIG_D80211_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_D80211_DEBUG_COUNTERS */
rx->u.rx.queue = tid;
/* 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;
}
/* 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;
#ifdef CONFIG_NET_SCHED
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;
}
#endif /* CONFIG_NET_SCHED */
/* 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;
switch (dscp) {
case 0x20:
return 2;
case 0x40:
return 1;
case 0x60:
return 3;
case 0x80:
return 4;
case 0xa0:
return 5;
case 0xc0:
return 6;
case 0xe0:
return 7;
default:
return 0;
}
}
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 = qd->dev->ieee80211_ptr;
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;
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);
/* incase we are a client verify acm is not set for this ac */
while (unlikely(local->wmm_acm & BIT(skb->priority))) {
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 = 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);
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 = 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)
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 = 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 = qd->dev->ieee80211_ptr;
struct ieee80211_hw *hw = &local->hw;
struct tcf_proto *tp;
int queue;
while ((tp = q->filter_list) != NULL) {
q->filter_list = tp->next;
tp->ops->destroy(tp);
}
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 = dev->ieee80211_ptr;
int queues = local->hw.queues;
int err = 0, i;
/* 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;
/* 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, &CHILD_QDISC_OPS);
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 = 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 = 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 = 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)
{
/* printk(KERN_DEBUG "entering %s\n", __func__); */
}
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 = qd->dev->ieee80211_ptr;
struct ieee80211_hw *hw = &local->hw;
/* printk(KERN_DEBUG "entering %s\n", __func__); */
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 = qd->dev->ieee80211_ptr;
struct ieee80211_hw *hw = &local->hw;
/* printk(KERN_DEBUG "entering %s\n", __func__); */
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 = qd->dev->ieee80211_ptr;
struct ieee80211_hw *hw = &local->hw;
/* printk(KERN_DEBUG "entering %s\n", __func__); */
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 = qd->dev->ieee80211_ptr;
struct ieee80211_hw *hw = &local->hw;
int queue;
/* printk(KERN_DEBUG "entering %s\n", __func__); */
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);
/* printk("entering %s\n", __func__); */
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);
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_wme_register(void)
{
int err = 0;
#ifdef CONFIG_NET_SCHED
err = register_qdisc(&wme_qdisc_ops);
#endif
return err;
}
void ieee80211_wme_unregister(void)
{
#ifdef CONFIG_NET_SCHED
unregister_qdisc(&wme_qdisc_ops);
#endif
}

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package/d80211/src/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);
void ieee80211_install_qdisc(struct net_device *dev);
int ieee80211_wme_register(void);
void ieee80211_wme_unregister(void);
#endif

846
package/d80211/src/wpa.c Normal file
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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/d80211.h>
#include <net/d80211_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 */
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_D80211_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_D80211_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;
}

34
package/d80211/src/wpa.h Normal file
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@ -0,0 +1,34 @@
/*
* 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);
int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
u8 *qos_tid, u8 **data, size_t *data_len);
#endif /* WPA_H */