cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/intel/ipw2x00/libipw.h

/*
 * Merged with mainline ieee80211.h in Aug 2004.  Original ieee802_11
 * remains copyright by the original authors
 *
 * Portions of the merged code are based on Host AP (software wireless
 * LAN access point) driver for Intersil Prism2/2.5/3.
 *
 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
 * <j@w1.fi>
 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
 *
 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
 * <jketreno@linux.intel.com>
 * Copyright (c) 2004-2005, Intel Corporation
 *
 * 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. See README and COPYING for
 * more details.
 *
 * API Version History
 * 1.0.x -- Initial version
 * 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs,
 *          various structure changes, and crypto API init method
 */
#ifndef LIBIPW_H

#define LIBIPW_H
#include <linux/if_ether.h>	/* ETH_ALEN */
#include <linux/kernel.h>	/* ARRAY_SIZE */
#include <linux/wireless.h>
#include <linux/ieee80211.h>

#include <net/lib80211.h>
#include <net/cfg80211.h>


#define LIBIPW_VERSION "git-1.1.13"


#define LIBIPW_DATA_LEN		2304
/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
   6.2.1.1.2.

   The figure in section 7.1.2 suggests a body size of up to 2312
   bytes is allowed, which is a bit confusing, I suspect this
   represents the 2304 bytes of real data, plus a possible 8 bytes of
   WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */


#define LIBIPW_1ADDR_LEN 10

#define LIBIPW_2ADDR_LEN 16

#define LIBIPW_3ADDR_LEN 24

#define LIBIPW_4ADDR_LEN 30

#define LIBIPW_FCS_LEN    4

#define LIBIPW_HLEN			(LIBIPW_4ADDR_LEN)

#define LIBIPW_FRAME_LEN		(LIBIPW_DATA_LEN + LIBIPW_HLEN)


#define MIN_FRAG_THRESHOLD     256U

#define	MAX_FRAG_THRESHOLD     2346U

/* QOS control */

#define LIBIPW_QCTL_TID		0x000F

/* debug macros */

#ifdef CONFIG_LIBIPW_DEBUG
extern u32 libipw_debug_level;

#define LIBIPW_DEBUG(level, fmt, args...) \
do { if (libipw_debug_level & (level)) \
  printk(KERN_DEBUG "libipw: %c %s " fmt, \
         in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
#else

#define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)
#endif				/* CONFIG_LIBIPW_DEBUG */

/*
 * To use the debug system:
 *
 * If you are defining a new debug classification, simply add it to the #define
 * list here in the form of:
 *
 * #define LIBIPW_DL_xxxx VALUE
 *
 * shifting value to the left one bit from the previous entry.  xxxx should be
 * the name of the classification (for example, WEP)
 *
 * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your
 * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want
 * to send output to that classification.
 *
 * To add your debug level to the list of levels seen when you perform
 *
 * % cat /proc/net/ieee80211/debug_level
 *
 * you simply need to add your entry to the libipw_debug_level array.
 *
 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
 * CONFIG_LIBIPW_DEBUG defined in your kernel configuration
 *
 */


#define LIBIPW_DL_INFO          (1<<0)

#define LIBIPW_DL_WX            (1<<1)

#define LIBIPW_DL_SCAN          (1<<2)

#define LIBIPW_DL_STATE         (1<<3)

#define LIBIPW_DL_MGMT          (1<<4)

#define LIBIPW_DL_FRAG          (1<<5)

#define LIBIPW_DL_DROP          (1<<7)


#define LIBIPW_DL_TX            (1<<8)

#define LIBIPW_DL_RX            (1<<9)

#define LIBIPW_DL_QOS           (1<<31)


#define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)

#define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)

#define LIBIPW_DEBUG_INFO(f, a...)   LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)


#define LIBIPW_DEBUG_WX(f, a...)     LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)

#define LIBIPW_DEBUG_SCAN(f, a...)   LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)

#define LIBIPW_DEBUG_STATE(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)

#define LIBIPW_DEBUG_MGMT(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)

#define LIBIPW_DEBUG_FRAG(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)

#define LIBIPW_DEBUG_DROP(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)

#define LIBIPW_DEBUG_TX(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)

#define LIBIPW_DEBUG_RX(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)

#define LIBIPW_DEBUG_QOS(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
#include <linux/netdevice.h>
#include <linux/if_arp.h>	/* ARPHRD_ETHER */

#ifndef WIRELESS_SPY

#define WIRELESS_SPY		
/* enable iwspy support */
#endif
#include <net/iw_handler.h>	/* new driver API */


#define ETH_P_PREAUTH 0x88C7	
/* IEEE 802.11i pre-authentication */

#ifndef ETH_P_80211_RAW

#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
#endif

/* IEEE 802.11 defines */


#define P80211_OUI_LEN 3


struct libipw_snap_hdr {

	
u8 dsap;		/* always 0xAA */
	
u8 ssap;		/* always 0xAA */
	
u8 ctrl;		/* always 0x03 */
	
u8 oui[P80211_OUI_LEN];	/* organizational universal id */

} 
__packed;


#define SNAP_SIZE sizeof(struct libipw_snap_hdr)


#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)

#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)

#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)


#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)

#define WLAN_GET_SEQ_SEQ(seq)  (((seq) & IEEE80211_SCTL_SEQ) >> 4)


#define LIBIPW_STATMASK_SIGNAL (1<<0)

#define LIBIPW_STATMASK_RSSI (1<<1)

#define LIBIPW_STATMASK_NOISE (1<<2)

#define LIBIPW_STATMASK_RATE (1<<3)

#define LIBIPW_STATMASK_WEMASK 0x7


#define LIBIPW_CCK_MODULATION    (1<<0)

#define LIBIPW_OFDM_MODULATION   (1<<1)


#define LIBIPW_24GHZ_BAND     (1<<0)

#define LIBIPW_52GHZ_BAND     (1<<1)


#define LIBIPW_CCK_RATE_1MB		        0x02

#define LIBIPW_CCK_RATE_2MB		        0x04

#define LIBIPW_CCK_RATE_5MB		        0x0B

#define LIBIPW_CCK_RATE_11MB		        0x16

#define LIBIPW_OFDM_RATE_6MB		        0x0C

#define LIBIPW_OFDM_RATE_9MB		        0x12

#define LIBIPW_OFDM_RATE_12MB		0x18

#define LIBIPW_OFDM_RATE_18MB		0x24

#define LIBIPW_OFDM_RATE_24MB		0x30

#define LIBIPW_OFDM_RATE_36MB		0x48

#define LIBIPW_OFDM_RATE_48MB		0x60

#define LIBIPW_OFDM_RATE_54MB		0x6C

#define LIBIPW_BASIC_RATE_MASK		0x80


#define LIBIPW_CCK_RATE_1MB_MASK		(1<<0)

#define LIBIPW_CCK_RATE_2MB_MASK		(1<<1)

#define LIBIPW_CCK_RATE_5MB_MASK		(1<<2)

#define LIBIPW_CCK_RATE_11MB_MASK		(1<<3)

#define LIBIPW_OFDM_RATE_6MB_MASK		(1<<4)

#define LIBIPW_OFDM_RATE_9MB_MASK		(1<<5)

#define LIBIPW_OFDM_RATE_12MB_MASK		(1<<6)

#define LIBIPW_OFDM_RATE_18MB_MASK		(1<<7)

#define LIBIPW_OFDM_RATE_24MB_MASK		(1<<8)

#define LIBIPW_OFDM_RATE_36MB_MASK		(1<<9)

#define LIBIPW_OFDM_RATE_48MB_MASK		(1<<10)

#define LIBIPW_OFDM_RATE_54MB_MASK		(1<<11)


#define LIBIPW_CCK_RATES_MASK	        0x0000000F

#define LIBIPW_CCK_BASIC_RATES_MASK	(LIBIPW_CCK_RATE_1MB_MASK | \
        LIBIPW_CCK_RATE_2MB_MASK)

#define LIBIPW_CCK_DEFAULT_RATES_MASK	(LIBIPW_CCK_BASIC_RATES_MASK | \
        LIBIPW_CCK_RATE_5MB_MASK | \
        LIBIPW_CCK_RATE_11MB_MASK)


#define LIBIPW_OFDM_RATES_MASK		0x00000FF0

#define LIBIPW_OFDM_BASIC_RATES_MASK	(LIBIPW_OFDM_RATE_6MB_MASK | \
        LIBIPW_OFDM_RATE_12MB_MASK | \
        LIBIPW_OFDM_RATE_24MB_MASK)

#define LIBIPW_OFDM_DEFAULT_RATES_MASK	(LIBIPW_OFDM_BASIC_RATES_MASK | \
        LIBIPW_OFDM_RATE_9MB_MASK  | \
        LIBIPW_OFDM_RATE_18MB_MASK | \
        LIBIPW_OFDM_RATE_36MB_MASK | \
        LIBIPW_OFDM_RATE_48MB_MASK | \
        LIBIPW_OFDM_RATE_54MB_MASK)

#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
                                LIBIPW_CCK_DEFAULT_RATES_MASK)


#define LIBIPW_NUM_OFDM_RATES	    8

#define LIBIPW_NUM_CCK_RATES	            4

#define LIBIPW_OFDM_SHIFT_MASK_A         4

/* NOTE: This data is for statistical purposes; not all hardware provides this
 *       information for frames received.
 *       For libipw_rx_mgt, you need to set at least the 'len' parameter.
 */

struct libipw_rx_stats {
	
u32 mac_time;
	
s8 rssi;
	
u8 signal;
	
u8 noise;
	
u16 rate;		/* in 100 kbps */
	
u8 received_channel;
	
u8 control;
	
u8 mask;
	
u8 freq;
	
u16 len;
	
u64 tsf;
	
u32 beacon_time;
};

/* IEEE 802.11 requires that STA supports concurrent reception of at least
 * three fragmented frames. This define can be increased to support more
 * concurrent frames, but it should be noted that each entry can consume about
 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */

#define LIBIPW_FRAG_CACHE_LEN 4


struct libipw_frag_entry {
	
unsigned long first_frag_time;
	
unsigned int seq;
	
unsigned int last_frag;
	
struct sk_buff *skb;
	
u8 src_addr[ETH_ALEN];
	
u8 dst_addr[ETH_ALEN];
};


struct libipw_stats {
	
unsigned int tx_unicast_frames;
	
unsigned int tx_multicast_frames;
	
unsigned int tx_fragments;
	
unsigned int tx_unicast_octets;
	
unsigned int tx_multicast_octets;
	
unsigned int tx_deferred_transmissions;
	
unsigned int tx_single_retry_frames;
	
unsigned int tx_multiple_retry_frames;
	
unsigned int tx_retry_limit_exceeded;
	
unsigned int tx_discards;
	
unsigned int rx_unicast_frames;
	
unsigned int rx_multicast_frames;
	
unsigned int rx_fragments;
	
unsigned int rx_unicast_octets;
	
unsigned int rx_multicast_octets;
	
unsigned int rx_fcs_errors;
	
unsigned int rx_discards_no_buffer;
	
unsigned int tx_discards_wrong_sa;
	
unsigned int rx_discards_undecryptable;
	
unsigned int rx_message_in_msg_fragments;
	
unsigned int rx_message_in_bad_msg_fragments;
};

struct libipw_device;


#define SEC_KEY_1		(1<<0)

#define SEC_KEY_2		(1<<1)

#define SEC_KEY_3		(1<<2)

#define SEC_KEY_4		(1<<3)

#define SEC_ACTIVE_KEY		(1<<4)

#define SEC_AUTH_MODE		(1<<5)

#define SEC_UNICAST_GROUP	(1<<6)

#define SEC_LEVEL		(1<<7)

#define SEC_ENABLED		(1<<8)

#define SEC_ENCRYPT		(1<<9)


#define SEC_LEVEL_0		0	
/* None */

#define SEC_LEVEL_1		1	
/* WEP 40 and 104 bit */

#define SEC_LEVEL_2		2	
/* Level 1 + TKIP */

#define SEC_LEVEL_2_CKIP	3	
/* Level 1 + CKIP */

#define SEC_LEVEL_3		4	
/* Level 2 + CCMP */


#define SEC_ALG_NONE		0

#define SEC_ALG_WEP		1

#define SEC_ALG_TKIP		2

#define SEC_ALG_CCMP		3


#define WEP_KEYS		4

#define WEP_KEY_LEN		13

#define SCM_KEY_LEN		32

#define SCM_TEMPORAL_KEY_LENGTH	16


struct libipw_security {
	



u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
	
u8 auth_mode;
	
u8 encode_alg[WEP_KEYS];
	
u8 key_sizes[WEP_KEYS];
	
u8 keys[WEP_KEYS][SCM_KEY_LEN];
	
u8 level;
	
u16 flags;
} 
__packed;

/*

 802.11 data frame from AP

      ,-------------------------------------------------------------------.
Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
      |------|------|---------|---------|---------|------|---------|------|
Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
      |      | tion | (BSSID) |         |         | ence |  data   |      |
      `-------------------------------------------------------------------'

Total: 28-2340 bytes

*/


#define BEACON_PROBE_SSID_ID_POSITION 12


struct libipw_hdr_1addr {
	
__le16 frame_ctl;
	
__le16 duration_id;
	
u8 addr1[ETH_ALEN];
	
u8 payload[0];
} 
__packed;


struct libipw_hdr_2addr {
	
__le16 frame_ctl;
	
__le16 duration_id;
	
u8 addr1[ETH_ALEN];
	
u8 addr2[ETH_ALEN];
	
u8 payload[0];
} 
__packed;


struct libipw_hdr_3addr {
	
__le16 frame_ctl;
	
__le16 duration_id;
	
u8 addr1[ETH_ALEN];
	
u8 addr2[ETH_ALEN];
	
u8 addr3[ETH_ALEN];
	
__le16 seq_ctl;
	
u8 payload[0];
} 
__packed;


struct libipw_hdr_4addr {
	
__le16 frame_ctl;
	
__le16 duration_id;
	
u8 addr1[ETH_ALEN];
	
u8 addr2[ETH_ALEN];
	
u8 addr3[ETH_ALEN];
	
__le16 seq_ctl;
	
u8 addr4[ETH_ALEN];
	
u8 payload[0];
} 
__packed;


struct libipw_hdr_3addrqos {
	
__le16 frame_ctl;
	
__le16 duration_id;
	
u8 addr1[ETH_ALEN];
	
u8 addr2[ETH_ALEN];
	
u8 addr3[ETH_ALEN];
	
__le16 seq_ctl;
	
u8 payload[0];
	
__le16 qos_ctl;
} 
__packed;


struct libipw_info_element {
	
u8 id;
	
u8 len;
	
u8 data[0];
} 
__packed;

/*
 * These are the data types that can make up management packets
 *
        u16 auth_algorithm;
        u16 auth_sequence;
        u16 beacon_interval;
        u16 capability;
        u8 current_ap[ETH_ALEN];
        u16 listen_interval;
        struct {
                u16 association_id:14, reserved:2;
        } __packed;
        u32 time_stamp[2];
        u16 reason;
        u16 status;
*/


struct libipw_auth {
	
struct libipw_hdr_3addr header;
	
__le16 algorithm;
	
__le16 transaction;
	
__le16 status;
	/* challenge */
	
struct libipw_info_element info_element[0];
} 
__packed;


struct libipw_channel_switch {
	
u8 id;
	
u8 len;
	
u8 mode;
	
u8 channel;
	
u8 count;
} 
__packed;


struct libipw_action {
	
struct libipw_hdr_3addr header;
	
u8 category;
	
u8 action;
	union {
		
struct libipw_action_exchange {
			
u8 token;
			
struct libipw_info_element info_element[0];
		} 
exchange;
		
struct libipw_channel_switch channel_switch;

	} 
format;
} 
__packed;


struct libipw_disassoc {
	
struct libipw_hdr_3addr header;
	
__le16 reason;
} 
__packed;

/* Alias deauth for disassoc */

#define libipw_deauth libipw_disassoc


struct libipw_probe_request {
	
struct libipw_hdr_3addr header;
	/* SSID, supported rates */
	
struct libipw_info_element info_element[0];
} 
__packed;


struct libipw_probe_response {
	
struct libipw_hdr_3addr header;
	
__le32 time_stamp[2];
	
__le16 beacon_interval;
	
__le16 capability;
	/* SSID, supported rates, FH params, DS params,
         * CF params, IBSS params, TIM (if beacon), RSN */
	
struct libipw_info_element info_element[0];
} 
__packed;

/* Alias beacon for probe_response */

#define libipw_beacon libipw_probe_response


struct libipw_assoc_request {
	
struct libipw_hdr_3addr header;
	
__le16 capability;
	
__le16 listen_interval;
	/* SSID, supported rates, RSN */
	
struct libipw_info_element info_element[0];
} 
__packed;


struct libipw_reassoc_request {
	
struct libipw_hdr_3addr header;
	
__le16 capability;
	
__le16 listen_interval;
	
u8 current_ap[ETH_ALEN];
	
struct libipw_info_element info_element[0];
} 
__packed;


struct libipw_assoc_response {
	
struct libipw_hdr_3addr header;
	
__le16 capability;
	
__le16 status;
	
__le16 aid;
	/* supported rates */
	
struct libipw_info_element info_element[0];
} 
__packed;


struct libipw_txb {
	
u8 nr_frags;
	
u8 encrypted;
	
u8 rts_included;
	
u8 reserved;
	
u16 frag_size;
	
u16 payload_size;
	
struct sk_buff *fragments[0];
};

/* SWEEP TABLE ENTRIES NUMBER */

#define MAX_SWEEP_TAB_ENTRIES		  42

#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
/* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
 * only use 8, and then use extended rates for the remaining supported
 * rates.  Other APs, however, stick all of their supported rates on the
 * main rates information element... */

#define MAX_RATES_LENGTH                  ((u8)12)

#define MAX_RATES_EX_LENGTH               ((u8)16)

#define MAX_NETWORK_COUNT                  128


#define CRC_LENGTH                 4U


#define MAX_WPA_IE_LEN 64


#define NETWORK_HAS_OFDM       (1<<1)

#define NETWORK_HAS_CCK        (1<<2)

/* QoS structure */

#define NETWORK_HAS_QOS_PARAMETERS      (1<<3)

#define NETWORK_HAS_QOS_INFORMATION     (1<<4)

#define NETWORK_HAS_QOS_MASK            (NETWORK_HAS_QOS_PARAMETERS | \
                                         NETWORK_HAS_QOS_INFORMATION)

/* 802.11h */

#define NETWORK_HAS_POWER_CONSTRAINT    (1<<5)

#define NETWORK_HAS_CSA                 (1<<6)

#define NETWORK_HAS_QUIET               (1<<7)

#define NETWORK_HAS_IBSS_DFS            (1<<8)

#define NETWORK_HAS_TPC_REPORT          (1<<9)


#define NETWORK_HAS_ERP_VALUE           (1<<10)


#define QOS_QUEUE_NUM                   4

#define QOS_OUI_LEN                     3

#define QOS_OUI_TYPE                    2

#define QOS_ELEMENT_ID                  221

#define QOS_OUI_INFO_SUB_TYPE           0

#define QOS_OUI_PARAM_SUB_TYPE          1

#define QOS_VERSION_1                   1

#define QOS_AIFSN_MIN_VALUE             2


struct libipw_qos_information_element {
	
u8 elementID;
	
u8 length;
	
u8 qui[QOS_OUI_LEN];
	
u8 qui_type;
	
u8 qui_subtype;
	
u8 version;
	
u8 ac_info;
} 
__packed;


struct libipw_qos_ac_parameter {
	
u8 aci_aifsn;
	
u8 ecw_min_max;
	
__le16 tx_op_limit;
} 
__packed;


struct libipw_qos_parameter_info {
	
struct libipw_qos_information_element info_element;
	
u8 reserved;
	
struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
} 
__packed;


struct libipw_qos_parameters {
	
__le16 cw_min[QOS_QUEUE_NUM];
	
__le16 cw_max[QOS_QUEUE_NUM];
	
u8 aifs[QOS_QUEUE_NUM];
	
u8 flag[QOS_QUEUE_NUM];
	
__le16 tx_op_limit[QOS_QUEUE_NUM];
} 
__packed;


struct libipw_qos_data {
	
struct libipw_qos_parameters parameters;
	
int active;
	
int supported;
	
u8 param_count;
	
u8 old_param_count;
};


struct libipw_tim_parameters {
	
u8 tim_count;
	
u8 tim_period;
} 
__packed;

/*******************************************************/


struct libipw_tpc_report {
	
u8 transmit_power;
	
u8 link_margin;
} 
__packed;


struct libipw_channel_map {
	
u8 channel;
	
u8 map;
} 
__packed;


struct libipw_ibss_dfs {
	
struct libipw_info_element ie;
	
u8 owner[ETH_ALEN];
	
u8 recovery_interval;
	
struct libipw_channel_map channel_map[0];
};


struct libipw_csa {
	
u8 mode;
	
u8 channel;
	
u8 count;
} 
__packed;


struct libipw_quiet {
	
u8 count;
	
u8 period;
	
u8 duration;
	
u8 offset;
} 
__packed;


struct libipw_network {
	/* These entries are used to identify a unique network */
	
u8 bssid[ETH_ALEN];
	
u8 channel;
	/* Ensure null-terminated for any debug msgs */
	
u8 ssid[IW_ESSID_MAX_SIZE + 1];
	
u8 ssid_len;

	
struct libipw_qos_data qos_data;

	/* These are network statistics */
	
struct libipw_rx_stats stats;
	
u16 capability;
	
u8 rates[MAX_RATES_LENGTH];
	
u8 rates_len;
	
u8 rates_ex[MAX_RATES_EX_LENGTH];
	
u8 rates_ex_len;
	
unsigned long last_scanned;
	
u8 mode;
	
u32 flags;
	
u32 last_associate;
	
u32 time_stamp[2];
	
u16 beacon_interval;
	
u16 listen_interval;
	
u16 atim_window;
	
u8 erp_value;
	
u8 wpa_ie[MAX_WPA_IE_LEN];
	
size_t wpa_ie_len;
	
u8 rsn_ie[MAX_WPA_IE_LEN];
	
size_t rsn_ie_len;
	
struct libipw_tim_parameters tim;

	/* 802.11h info */

	/* Power Constraint - mandatory if spctrm mgmt required */
	
u8 power_constraint;

	/* TPC Report - mandatory if spctrm mgmt required */
	
struct libipw_tpc_report tpc_report;

	/* Channel Switch Announcement - optional if spctrm mgmt required */
	
struct libipw_csa csa;

	/* Quiet - optional if spctrm mgmt required */
	
struct libipw_quiet quiet;

	
struct list_head list;
};


enum libipw_state {
	
LIBIPW_UNINITIALIZED = 0,
	
LIBIPW_INITIALIZED,
	
LIBIPW_ASSOCIATING,
	
LIBIPW_ASSOCIATED,
	
LIBIPW_AUTHENTICATING,
	
LIBIPW_AUTHENTICATED,
	
LIBIPW_SHUTDOWN
};


#define DEFAULT_MAX_SCAN_AGE (15 * HZ)

#define DEFAULT_FTS 2346


#define CFG_LIBIPW_RESERVE_FCS (1<<0)

#define CFG_LIBIPW_COMPUTE_FCS (1<<1)

#define CFG_LIBIPW_RTS (1<<2)


#define LIBIPW_24GHZ_MIN_CHANNEL 1

#define LIBIPW_24GHZ_MAX_CHANNEL 14

#define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \
                                  LIBIPW_24GHZ_MIN_CHANNEL + 1)


#define LIBIPW_52GHZ_MIN_CHANNEL 34

#define LIBIPW_52GHZ_MAX_CHANNEL 165

#define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \
                                  LIBIPW_52GHZ_MIN_CHANNEL + 1)

enum {
	
LIBIPW_CH_PASSIVE_ONLY = (1 << 0),
	
LIBIPW_CH_80211H_RULES = (1 << 1),
	
LIBIPW_CH_B_ONLY = (1 << 2),
	
LIBIPW_CH_NO_IBSS = (1 << 3),
	
LIBIPW_CH_UNIFORM_SPREADING = (1 << 4),
	
LIBIPW_CH_RADAR_DETECT = (1 << 5),
	
LIBIPW_CH_INVALID = (1 << 6),
};


struct libipw_channel {
	
u32 freq;	/* in MHz */
	
u8 channel;
	
u8 flags;
	
u8 max_power;	/* in dBm */
};


struct libipw_geo {
	
u8 name[4];
	
u8 bg_channels;
	
u8 a_channels;
	
struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];
	
struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];
};


struct libipw_device {
	
struct net_device *dev;
	
struct wireless_dev wdev;
	
struct libipw_security sec;

	/* Bookkeeping structures */
	
struct libipw_stats ieee_stats;

	
struct libipw_geo geo;
	
struct ieee80211_supported_band bg_band;
	
struct ieee80211_supported_band a_band;

	/* Probe / Beacon management */
	
struct list_head network_free_list;
	
struct list_head network_list;
	
struct libipw_network *networks[MAX_NETWORK_COUNT];
	
int scans;
	
int scan_age;

	
int iw_mode;		/* operating mode (IW_MODE_*) */
	
struct iw_spy_data spy_data;	/* iwspy support */

	
spinlock_t lock;

	
int tx_headroom;	/* Set to size of any additional room needed at front
                                 * of allocated Tx SKBs */
	
u32 config;

	/* WEP and other encryption related settings at the device level */
	
int open_wep;		/* Set to 1 to allow unencrypted frames */

	/* If the host performs {en,de}cryption, then set to 1 */
	
int host_encrypt;
	
int host_encrypt_msdu;
	
int host_decrypt;
	/* host performs multicast decryption */
	
int host_mc_decrypt;

	/* host should strip IV and ICV from protected frames */
	/* meaningful only when hardware decryption is being used */
	
int host_strip_iv_icv;

	
int host_open_frag;
	
int ieee802_1x;		/* is IEEE 802.1X used */

	/* WPA data */
	
int wpa_enabled;
	
int drop_unencrypted;
	
int privacy_invoked;
	
size_t wpa_ie_len;
	
u8 *wpa_ie;

	
struct lib80211_crypt_info crypt_info;

	
int bcrx_sta_key;	/* use individual keys to override default keys even
                                 * with RX of broad/multicast frames */

	/* Fragmentation structures */
	
struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];
	
unsigned int frag_next_idx;
	
u16 fts;		/* Fragmentation Threshold */
	
u16 rts;		/* RTS threshold */

	/* Association info */
	
u8 bssid[ETH_ALEN];

	
enum libipw_state state;

	
int mode;		/* A, B, G */
	
int modulation;		/* CCK, OFDM */
	
int freq_band;		/* 2.4Ghz, 5.2Ghz, Mixed */
	
int abg_true;		/* ABG flag              */

	
int perfect_rssi;
	
int worst_rssi;

	
u16 prev_seq_ctl;	/* used to drop duplicate frames */

	/* Callback functions */
	
void (*set_security) (struct net_device * dev,
			      struct libipw_security * sec);
	
netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,
					struct net_device * dev, int pri);
	
int (*is_queue_full) (struct net_device * dev, int pri);

	
int (*handle_management) (struct net_device * dev,
				  struct libipw_network * network, u16 type);
	
int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);

	/* Typical STA methods */
	
int (*handle_auth) (struct net_device * dev,
			    struct libipw_auth * auth);
	
int (*handle_deauth) (struct net_device * dev,
			      struct libipw_deauth * auth);
	
int (*handle_action) (struct net_device * dev,
			      struct libipw_action * action,
			      struct libipw_rx_stats * stats);
	
int (*handle_disassoc) (struct net_device * dev,
				struct libipw_disassoc * assoc);
	
int (*handle_beacon) (struct net_device * dev,
			      struct libipw_beacon * beacon,
			      struct libipw_network * network);
	
int (*handle_probe_response) (struct net_device * dev,
				      struct libipw_probe_response * resp,
				      struct libipw_network * network);
	
int (*handle_probe_request) (struct net_device * dev,
				     struct libipw_probe_request * req,
				     struct libipw_rx_stats * stats);
	
int (*handle_assoc_response) (struct net_device * dev,
				      struct libipw_assoc_response * resp,
				      struct libipw_network * network);

	/* Typical AP methods */
	
int (*handle_assoc_request) (struct net_device * dev);
	
int (*handle_reassoc_request) (struct net_device * dev,
				       struct libipw_reassoc_request * req);

	/* This must be the last item so that it points to the data
         * allocated beyond this structure by alloc_libipw */
	
u8 priv[0];
};


#define IEEE_A            (1<<0)

#define IEEE_B            (1<<1)

#define IEEE_G            (1<<2)

#define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)


static inline void *libipw_priv(struct net_device *dev) { return ((struct libipw_device *)netdev_priv(dev))->priv; }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig2589.29%133.33%
John W. Linville27.14%133.33%
James Ketrenos13.57%133.33%
Total28100.00%3100.00%


static inline int libipw_is_valid_mode(struct libipw_device *ieee, int mode) { /* * It is possible for both access points and our device to support * combinations of modes, so as long as there is one valid combination * of ap/device supported modes, then return success * */ if ((mode & IEEE_A) && (ieee->modulation & LIBIPW_OFDM_MODULATION) && (ieee->freq_band & LIBIPW_52GHZ_BAND)) return 1; if ((mode & IEEE_G) && (ieee->modulation & LIBIPW_OFDM_MODULATION) && (ieee->freq_band & LIBIPW_24GHZ_BAND)) return 1; if ((mode & IEEE_B) && (ieee->modulation & LIBIPW_CCK_MODULATION) && (ieee->freq_band & LIBIPW_24GHZ_BAND)) return 1; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig9191.00%133.33%
John W. Linville88.00%133.33%
James Ketrenos11.00%133.33%
Total100100.00%3100.00%


static inline int libipw_get_hdrlen(u16 fc) { int hdrlen = LIBIPW_3ADDR_LEN; u16 stype = WLAN_FC_GET_STYPE(fc); switch (WLAN_FC_GET_TYPE(fc)) { case IEEE80211_FTYPE_DATA: if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) hdrlen = LIBIPW_4ADDR_LEN; if (stype & IEEE80211_STYPE_QOS_DATA) hdrlen += 2; break; case IEEE80211_FTYPE_CTL: switch (WLAN_FC_GET_STYPE(fc)) { case IEEE80211_STYPE_CTS: case IEEE80211_STYPE_ACK: hdrlen = LIBIPW_1ADDR_LEN; break; default: hdrlen = LIBIPW_2ADDR_LEN; break; } break; } return hdrlen; }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig7375.26%125.00%
James Ketrenos1919.59%250.00%
John W. Linville55.15%125.00%
Total97100.00%4100.00%


static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr) { switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) { case LIBIPW_1ADDR_LEN: return ((struct libipw_hdr_1addr *)hdr)->payload; case LIBIPW_2ADDR_LEN: return ((struct libipw_hdr_2addr *)hdr)->payload; case LIBIPW_3ADDR_LEN: return ((struct libipw_hdr_3addr *)hdr)->payload; case LIBIPW_4ADDR_LEN: return ((struct libipw_hdr_4addr *)hdr)->payload; } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
James Ketrenos7684.44%240.00%
John W. Linville1112.22%240.00%
Andrew Morton33.33%120.00%
Total90100.00%5100.00%


static inline int libipw_is_ofdm_rate(u8 rate) { switch (rate & ~LIBIPW_BASIC_RATE_MASK) { case LIBIPW_OFDM_RATE_6MB: case LIBIPW_OFDM_RATE_9MB: case LIBIPW_OFDM_RATE_12MB: case LIBIPW_OFDM_RATE_18MB: case LIBIPW_OFDM_RATE_24MB: case LIBIPW_OFDM_RATE_36MB: case LIBIPW_OFDM_RATE_48MB: case LIBIPW_OFDM_RATE_54MB: return 1; } return 0; }

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Ivo van Doorn3979.59%150.00%
John W. Linville1020.41%150.00%
Total49100.00%2100.00%


static inline int libipw_is_cck_rate(u8 rate) { switch (rate & ~LIBIPW_BASIC_RATE_MASK) { case LIBIPW_CCK_RATE_1MB: case LIBIPW_CCK_RATE_2MB: case LIBIPW_CCK_RATE_5MB: case LIBIPW_CCK_RATE_11MB: return 1; } return 0; }

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Ivo van Doorn3183.78%150.00%
John W. Linville616.22%150.00%
Total37100.00%2100.00%

/* libipw.c */ void free_libipw(struct net_device *dev, int monitor); struct net_device *alloc_libipw(int sizeof_priv, int monitor); void libipw_networks_age(struct libipw_device *ieee, unsigned long age_secs); int libipw_set_encryption(struct libipw_device *ieee); /* libipw_tx.c */ netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev); void libipw_txb_free(struct libipw_txb *); /* libipw_rx.c */ void libipw_rx_any(struct libipw_device *ieee, struct sk_buff *skb, struct libipw_rx_stats *stats); int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb, struct libipw_rx_stats *rx_stats); /* make sure to set stats->len */ void libipw_rx_mgt(struct libipw_device *ieee, struct libipw_hdr_4addr *header, struct libipw_rx_stats *stats); /* libipw_geo.c */ const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee); void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo); int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel); int libipw_channel_to_index(struct libipw_device *ieee, u8 channel); u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq); u8 libipw_get_channel_flags(struct libipw_device *ieee, u8 channel); const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee, u8 channel); u32 libipw_channel_to_freq(struct libipw_device *ieee, u8 channel); /* libipw_wx.c */ int libipw_wx_get_scan(struct libipw_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *key); int libipw_wx_set_encode(struct libipw_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *key); int libipw_wx_get_encode(struct libipw_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *key); int libipw_wx_set_encodeext(struct libipw_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *extra); int libipw_wx_get_encodeext(struct libipw_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *extra);
static inline void libipw_increment_scans(struct libipw_device *ieee) { ieee->scans++; }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig1482.35%133.33%
John W. Linville211.76%133.33%
James Ketrenos15.88%133.33%
Total17100.00%3100.00%


static inline int libipw_get_scans(struct libipw_device *ieee) { return ieee->scans; }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig1482.35%133.33%
John W. Linville211.76%133.33%
James Ketrenos15.88%133.33%
Total17100.00%3100.00%

#endif /* LIBIPW_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig147045.00%11.85%
James Ketrenos99830.55%2138.89%
John W. Linville35510.87%59.26%
Yi Zhu2407.35%712.96%
Ivo van Doorn702.14%11.85%
Eric Dumazet270.83%11.85%
Daniel Drake250.77%35.56%
Larry Finger230.70%35.56%
Jiri Benc200.61%23.70%
Dan J Williams110.34%11.85%
Pavel Roskin70.21%11.85%
Jeff Garzik60.18%11.85%
Andrew Morton30.09%11.85%
Al Viro30.09%11.85%
Adrian Bunk30.09%11.85%
Helmut Schaa20.06%11.85%
Stephen Hemminger20.06%11.85%
Johannes Berg10.03%11.85%
Stanislav Yakovlev10.03%11.85%
Total3267100.00%54100.00%
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