1009 lines
27 KiB
C
1009 lines
27 KiB
C
/*
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* Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
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* remains copyright by the original authors
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*
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* Portions of the merged code are based on Host AP (software wireless
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* LAN access point) driver for Intersil Prism2/2.5/3.
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*
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* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
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* <j@w1.fi>
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* Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
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*
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* Adaption to a generic IEEE 802.11 stack by James Ketrenos
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* <jketreno@linux.intel.com>
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* Copyright (c) 2004-2005, Intel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation. See README and COPYING for
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* more details.
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*
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* API Version History
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* 1.0.x -- Initial version
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* 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs,
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* various structure changes, and crypto API init method
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*/
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#ifndef LIBIPW_H
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#define LIBIPW_H
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#include <linux/if_ether.h> /* ETH_ALEN */
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#include <linux/kernel.h> /* ARRAY_SIZE */
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#include <linux/wireless.h>
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#include <linux/ieee80211.h>
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#include <net/lib80211.h>
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#include <net/cfg80211.h>
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#define LIBIPW_VERSION "git-1.1.13"
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#define LIBIPW_DATA_LEN 2304
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/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
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6.2.1.1.2.
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The figure in section 7.1.2 suggests a body size of up to 2312
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bytes is allowed, which is a bit confusing, I suspect this
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represents the 2304 bytes of real data, plus a possible 8 bytes of
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WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
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#define LIBIPW_1ADDR_LEN 10
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#define LIBIPW_2ADDR_LEN 16
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#define LIBIPW_3ADDR_LEN 24
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#define LIBIPW_4ADDR_LEN 30
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#define LIBIPW_FCS_LEN 4
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#define LIBIPW_HLEN (LIBIPW_4ADDR_LEN)
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#define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN)
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#define MIN_FRAG_THRESHOLD 256U
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#define MAX_FRAG_THRESHOLD 2346U
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/* QOS control */
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#define LIBIPW_QCTL_TID 0x000F
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/* debug macros */
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#ifdef CONFIG_LIBIPW_DEBUG
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extern u32 libipw_debug_level;
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#define LIBIPW_DEBUG(level, fmt, args...) \
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do { if (libipw_debug_level & (level)) \
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printk(KERN_DEBUG "libipw: %c %s " fmt, \
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in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
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#else
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#define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)
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#endif /* CONFIG_LIBIPW_DEBUG */
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/*
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* To use the debug system:
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*
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* If you are defining a new debug classification, simply add it to the #define
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* list here in the form of:
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*
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* #define LIBIPW_DL_xxxx VALUE
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*
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* shifting value to the left one bit from the previous entry. xxxx should be
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* the name of the classification (for example, WEP)
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*
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* You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your
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* classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want
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* to send output to that classification.
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*
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* To add your debug level to the list of levels seen when you perform
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*
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* % cat /proc/net/ieee80211/debug_level
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*
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* you simply need to add your entry to the libipw_debug_level array.
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*
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* If you do not see debug_level in /proc/net/ieee80211 then you do not have
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* CONFIG_LIBIPW_DEBUG defined in your kernel configuration
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*
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*/
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#define LIBIPW_DL_INFO (1<<0)
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#define LIBIPW_DL_WX (1<<1)
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#define LIBIPW_DL_SCAN (1<<2)
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#define LIBIPW_DL_STATE (1<<3)
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#define LIBIPW_DL_MGMT (1<<4)
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#define LIBIPW_DL_FRAG (1<<5)
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#define LIBIPW_DL_DROP (1<<7)
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#define LIBIPW_DL_TX (1<<8)
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#define LIBIPW_DL_RX (1<<9)
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#define LIBIPW_DL_QOS (1<<31)
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#define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)
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#define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)
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#define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)
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#define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)
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#define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)
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#define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)
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#define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)
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#define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)
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#define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)
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#define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)
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#define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)
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#define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
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#include <linux/netdevice.h>
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#include <linux/if_arp.h> /* ARPHRD_ETHER */
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#ifndef WIRELESS_SPY
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#define WIRELESS_SPY /* enable iwspy support */
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#endif
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#include <net/iw_handler.h> /* new driver API */
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#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
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#ifndef ETH_P_80211_RAW
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#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
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#endif
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/* IEEE 802.11 defines */
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#define P80211_OUI_LEN 3
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struct libipw_snap_hdr {
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u8 dsap; /* always 0xAA */
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u8 ssap; /* always 0xAA */
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u8 ctrl; /* always 0x03 */
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u8 oui[P80211_OUI_LEN]; /* organizational universal id */
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} __packed;
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#define SNAP_SIZE sizeof(struct libipw_snap_hdr)
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#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
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#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
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#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
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#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
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#define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
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#define LIBIPW_STATMASK_SIGNAL (1<<0)
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#define LIBIPW_STATMASK_RSSI (1<<1)
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#define LIBIPW_STATMASK_NOISE (1<<2)
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#define LIBIPW_STATMASK_RATE (1<<3)
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#define LIBIPW_STATMASK_WEMASK 0x7
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#define LIBIPW_CCK_MODULATION (1<<0)
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#define LIBIPW_OFDM_MODULATION (1<<1)
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#define LIBIPW_24GHZ_BAND (1<<0)
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#define LIBIPW_52GHZ_BAND (1<<1)
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#define LIBIPW_CCK_RATE_1MB 0x02
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#define LIBIPW_CCK_RATE_2MB 0x04
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#define LIBIPW_CCK_RATE_5MB 0x0B
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#define LIBIPW_CCK_RATE_11MB 0x16
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#define LIBIPW_OFDM_RATE_6MB 0x0C
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#define LIBIPW_OFDM_RATE_9MB 0x12
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#define LIBIPW_OFDM_RATE_12MB 0x18
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#define LIBIPW_OFDM_RATE_18MB 0x24
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#define LIBIPW_OFDM_RATE_24MB 0x30
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#define LIBIPW_OFDM_RATE_36MB 0x48
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#define LIBIPW_OFDM_RATE_48MB 0x60
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#define LIBIPW_OFDM_RATE_54MB 0x6C
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#define LIBIPW_BASIC_RATE_MASK 0x80
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#define LIBIPW_CCK_RATE_1MB_MASK (1<<0)
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#define LIBIPW_CCK_RATE_2MB_MASK (1<<1)
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#define LIBIPW_CCK_RATE_5MB_MASK (1<<2)
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#define LIBIPW_CCK_RATE_11MB_MASK (1<<3)
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#define LIBIPW_OFDM_RATE_6MB_MASK (1<<4)
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#define LIBIPW_OFDM_RATE_9MB_MASK (1<<5)
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#define LIBIPW_OFDM_RATE_12MB_MASK (1<<6)
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#define LIBIPW_OFDM_RATE_18MB_MASK (1<<7)
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#define LIBIPW_OFDM_RATE_24MB_MASK (1<<8)
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#define LIBIPW_OFDM_RATE_36MB_MASK (1<<9)
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#define LIBIPW_OFDM_RATE_48MB_MASK (1<<10)
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#define LIBIPW_OFDM_RATE_54MB_MASK (1<<11)
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#define LIBIPW_CCK_RATES_MASK 0x0000000F
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#define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \
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LIBIPW_CCK_RATE_2MB_MASK)
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#define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \
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LIBIPW_CCK_RATE_5MB_MASK | \
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LIBIPW_CCK_RATE_11MB_MASK)
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#define LIBIPW_OFDM_RATES_MASK 0x00000FF0
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#define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \
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LIBIPW_OFDM_RATE_12MB_MASK | \
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LIBIPW_OFDM_RATE_24MB_MASK)
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#define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \
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LIBIPW_OFDM_RATE_9MB_MASK | \
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LIBIPW_OFDM_RATE_18MB_MASK | \
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LIBIPW_OFDM_RATE_36MB_MASK | \
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LIBIPW_OFDM_RATE_48MB_MASK | \
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LIBIPW_OFDM_RATE_54MB_MASK)
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#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
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LIBIPW_CCK_DEFAULT_RATES_MASK)
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#define LIBIPW_NUM_OFDM_RATES 8
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#define LIBIPW_NUM_CCK_RATES 4
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#define LIBIPW_OFDM_SHIFT_MASK_A 4
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/* NOTE: This data is for statistical purposes; not all hardware provides this
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* information for frames received.
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* For libipw_rx_mgt, you need to set at least the 'len' parameter.
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*/
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struct libipw_rx_stats {
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u32 mac_time;
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s8 rssi;
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u8 signal;
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u8 noise;
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u16 rate; /* in 100 kbps */
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u8 received_channel;
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u8 control;
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u8 mask;
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u8 freq;
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u16 len;
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u64 tsf;
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u32 beacon_time;
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};
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/* IEEE 802.11 requires that STA supports concurrent reception of at least
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* three fragmented frames. This define can be increased to support more
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* concurrent frames, but it should be noted that each entry can consume about
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* 2 kB of RAM and increasing cache size will slow down frame reassembly. */
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#define LIBIPW_FRAG_CACHE_LEN 4
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struct libipw_frag_entry {
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unsigned long first_frag_time;
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unsigned int seq;
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unsigned int last_frag;
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struct sk_buff *skb;
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u8 src_addr[ETH_ALEN];
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u8 dst_addr[ETH_ALEN];
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};
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struct libipw_stats {
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unsigned int tx_unicast_frames;
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unsigned int tx_multicast_frames;
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unsigned int tx_fragments;
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unsigned int tx_unicast_octets;
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unsigned int tx_multicast_octets;
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unsigned int tx_deferred_transmissions;
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unsigned int tx_single_retry_frames;
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unsigned int tx_multiple_retry_frames;
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unsigned int tx_retry_limit_exceeded;
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unsigned int tx_discards;
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unsigned int rx_unicast_frames;
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unsigned int rx_multicast_frames;
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unsigned int rx_fragments;
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unsigned int rx_unicast_octets;
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unsigned int rx_multicast_octets;
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unsigned int rx_fcs_errors;
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unsigned int rx_discards_no_buffer;
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unsigned int tx_discards_wrong_sa;
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unsigned int rx_discards_undecryptable;
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unsigned int rx_message_in_msg_fragments;
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unsigned int rx_message_in_bad_msg_fragments;
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};
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struct libipw_device;
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#define SEC_KEY_1 (1<<0)
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#define SEC_KEY_2 (1<<1)
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#define SEC_KEY_3 (1<<2)
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#define SEC_KEY_4 (1<<3)
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#define SEC_ACTIVE_KEY (1<<4)
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#define SEC_AUTH_MODE (1<<5)
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#define SEC_UNICAST_GROUP (1<<6)
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#define SEC_LEVEL (1<<7)
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#define SEC_ENABLED (1<<8)
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#define SEC_ENCRYPT (1<<9)
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#define SEC_LEVEL_0 0 /* None */
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#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
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#define SEC_LEVEL_2 2 /* Level 1 + TKIP */
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#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
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#define SEC_LEVEL_3 4 /* Level 2 + CCMP */
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#define SEC_ALG_NONE 0
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#define SEC_ALG_WEP 1
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#define SEC_ALG_TKIP 2
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#define SEC_ALG_CCMP 3
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#define WEP_KEYS 4
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#define WEP_KEY_LEN 13
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#define SCM_KEY_LEN 32
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#define SCM_TEMPORAL_KEY_LENGTH 16
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struct libipw_security {
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u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
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u8 auth_mode;
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u8 encode_alg[WEP_KEYS];
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u8 key_sizes[WEP_KEYS];
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u8 keys[WEP_KEYS][SCM_KEY_LEN];
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u8 level;
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u16 flags;
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} __packed;
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/*
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802.11 data frame from AP
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,-------------------------------------------------------------------.
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Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
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|------|------|---------|---------|---------|------|---------|------|
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Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
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| | tion | (BSSID) | | | ence | data | |
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`-------------------------------------------------------------------'
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Total: 28-2340 bytes
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*/
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#define BEACON_PROBE_SSID_ID_POSITION 12
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struct libipw_hdr_1addr {
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__le16 frame_ctl;
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__le16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 payload[0];
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} __packed;
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struct libipw_hdr_2addr {
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__le16 frame_ctl;
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__le16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 payload[0];
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} __packed;
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struct libipw_hdr_3addr {
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__le16 frame_ctl;
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__le16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 addr3[ETH_ALEN];
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__le16 seq_ctl;
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u8 payload[0];
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} __packed;
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struct libipw_hdr_4addr {
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__le16 frame_ctl;
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__le16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 addr3[ETH_ALEN];
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__le16 seq_ctl;
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u8 addr4[ETH_ALEN];
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u8 payload[0];
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} __packed;
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struct libipw_hdr_3addrqos {
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__le16 frame_ctl;
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__le16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 addr3[ETH_ALEN];
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__le16 seq_ctl;
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u8 payload[0];
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__le16 qos_ctl;
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} __packed;
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struct libipw_info_element {
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u8 id;
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u8 len;
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u8 data[0];
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} __packed;
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/*
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* These are the data types that can make up management packets
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*
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u16 auth_algorithm;
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u16 auth_sequence;
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u16 beacon_interval;
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u16 capability;
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u8 current_ap[ETH_ALEN];
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u16 listen_interval;
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struct {
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u16 association_id:14, reserved:2;
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} __packed;
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u32 time_stamp[2];
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u16 reason;
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u16 status;
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*/
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struct libipw_auth {
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struct libipw_hdr_3addr header;
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__le16 algorithm;
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__le16 transaction;
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__le16 status;
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/* challenge */
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struct libipw_info_element info_element[0];
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} __packed;
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struct libipw_channel_switch {
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u8 id;
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u8 len;
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u8 mode;
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u8 channel;
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u8 count;
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} __packed;
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struct libipw_action {
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struct libipw_hdr_3addr header;
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u8 category;
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u8 action;
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union {
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struct libipw_action_exchange {
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u8 token;
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struct libipw_info_element info_element[0];
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} exchange;
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struct libipw_channel_switch channel_switch;
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} format;
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} __packed;
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struct libipw_disassoc {
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struct libipw_hdr_3addr header;
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__le16 reason;
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} __packed;
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/* Alias deauth for disassoc */
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#define libipw_deauth libipw_disassoc
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struct libipw_probe_request {
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struct libipw_hdr_3addr header;
|
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/* SSID, supported rates */
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struct libipw_info_element info_element[0];
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} __packed;
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struct libipw_probe_response {
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struct libipw_hdr_3addr header;
|
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__le32 time_stamp[2];
|
|
__le16 beacon_interval;
|
|
__le16 capability;
|
|
/* SSID, supported rates, FH params, DS params,
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* CF params, IBSS params, TIM (if beacon), RSN */
|
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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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/* libipw.c */
|
|
void free_libipw(struct net_device *dev, int monitor);
|
|
struct net_device *alloc_libipw(int sizeof_priv, int monitor);
|
|
int libipw_change_mtu(struct net_device *dev, int new_mtu);
|
|
|
|
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);
|
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/* make sure to set stats->len */
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void libipw_rx_mgt(struct libipw_device *ieee, struct libipw_hdr_4addr *header,
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struct libipw_rx_stats *stats);
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|
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/* libipw_geo.c */
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const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee);
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void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo);
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|
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int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel);
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int libipw_channel_to_index(struct libipw_device *ieee, u8 channel);
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u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
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u8 libipw_get_channel_flags(struct libipw_device *ieee, u8 channel);
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const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee,
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u8 channel);
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u32 libipw_channel_to_freq(struct libipw_device *ieee, u8 channel);
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|
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/* libipw_wx.c */
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int libipw_wx_get_scan(struct libipw_device *ieee, struct iw_request_info *info,
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union iwreq_data *wrqu, char *key);
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int libipw_wx_set_encode(struct libipw_device *ieee,
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struct iw_request_info *info, union iwreq_data *wrqu,
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char *key);
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int libipw_wx_get_encode(struct libipw_device *ieee,
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struct iw_request_info *info, union iwreq_data *wrqu,
|
|
char *key);
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int libipw_wx_set_encodeext(struct libipw_device *ieee,
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struct iw_request_info *info,
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union iwreq_data *wrqu, char *extra);
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int libipw_wx_get_encodeext(struct libipw_device *ieee,
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|
struct iw_request_info *info,
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|
union iwreq_data *wrqu, char *extra);
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|
|
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static inline void libipw_increment_scans(struct libipw_device *ieee)
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{
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ieee->scans++;
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}
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|
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static inline int libipw_get_scans(struct libipw_device *ieee)
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{
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return ieee->scans;
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}
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|
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#endif /* LIBIPW_H */
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