992 lines
29 KiB
C
992 lines
29 KiB
C
/*
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* Copyright 2002-2005, Instant802 Networks, Inc.
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* Copyright 2005, Devicescape Software, Inc.
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* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
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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.
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*/
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#ifndef IEEE80211_I_H
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#define IEEE80211_I_H
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <linux/if_ether.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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#include <linux/workqueue.h>
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/etherdevice.h>
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#include <net/wireless.h>
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#include "key.h"
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#include "sta_info.h"
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/* ieee80211.o internal definitions, etc. These are not included into
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* low-level drivers. */
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#ifndef ETH_P_PAE
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#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
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#endif /* ETH_P_PAE */
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#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
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#define IEEE80211_FC(type, subtype) cpu_to_le16(type | subtype)
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struct ieee80211_local;
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/* Maximum number of broadcast/multicast frames to buffer when some of the
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* associated stations are using power saving. */
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#define AP_MAX_BC_BUFFER 128
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/* Maximum number of frames buffered to all STAs, including multicast frames.
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* Note: increasing this limit increases the potential memory requirement. Each
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* frame can be up to about 2 kB long. */
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#define TOTAL_MAX_TX_BUFFER 512
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/* Required encryption head and tailroom */
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#define IEEE80211_ENCRYPT_HEADROOM 8
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#define IEEE80211_ENCRYPT_TAILROOM 12
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/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
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* reception of at least three fragmented frames. This limit can be increased
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* by changing this define, at the cost of slower frame reassembly and
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* increased memory use (about 2 kB of RAM per entry). */
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#define IEEE80211_FRAGMENT_MAX 4
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struct ieee80211_fragment_entry {
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unsigned long first_frag_time;
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unsigned int seq;
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unsigned int rx_queue;
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unsigned int last_frag;
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unsigned int extra_len;
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struct sk_buff_head skb_list;
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int ccmp; /* Whether fragments were encrypted with CCMP */
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u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
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};
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struct ieee80211_sta_bss {
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struct list_head list;
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struct ieee80211_sta_bss *hnext;
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size_t ssid_len;
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atomic_t users;
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u8 bssid[ETH_ALEN];
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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u16 capability; /* host byte order */
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enum ieee80211_band band;
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int freq;
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int rssi, signal, noise;
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u8 *wpa_ie;
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size_t wpa_ie_len;
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u8 *rsn_ie;
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size_t rsn_ie_len;
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u8 *wmm_ie;
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size_t wmm_ie_len;
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u8 *ht_ie;
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size_t ht_ie_len;
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#ifdef CONFIG_MAC80211_MESH
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u8 *mesh_id;
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size_t mesh_id_len;
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u8 *mesh_cfg;
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#endif
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#define IEEE80211_MAX_SUPP_RATES 32
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u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
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size_t supp_rates_len;
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u64 timestamp;
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int beacon_int;
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bool probe_resp;
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unsigned long last_update;
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/* during assocation, we save an ERP value from a probe response so
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* that we can feed ERP info to the driver when handling the
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* association completes. these fields probably won't be up-to-date
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* otherwise, you probably don't want to use them. */
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int has_erp_value;
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u8 erp_value;
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};
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static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
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{
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#ifdef CONFIG_MAC80211_MESH
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return bss->mesh_cfg;
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#endif
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return NULL;
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}
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static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
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{
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#ifdef CONFIG_MAC80211_MESH
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return bss->mesh_id;
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#endif
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return NULL;
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}
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static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
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{
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#ifdef CONFIG_MAC80211_MESH
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return bss->mesh_id_len;
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#endif
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return 0;
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}
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typedef unsigned __bitwise__ ieee80211_tx_result;
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#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
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#define TX_DROP ((__force ieee80211_tx_result) 1u)
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#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
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#define IEEE80211_TX_FRAGMENTED BIT(0)
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#define IEEE80211_TX_UNICAST BIT(1)
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#define IEEE80211_TX_PS_BUFFERED BIT(2)
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#define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
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#define IEEE80211_TX_INJECTED BIT(4)
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struct ieee80211_tx_data {
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struct sk_buff *skb;
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struct net_device *dev;
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struct ieee80211_local *local;
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struct ieee80211_sub_if_data *sdata;
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struct sta_info *sta;
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struct ieee80211_key *key;
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struct ieee80211_tx_control *control;
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struct ieee80211_channel *channel;
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struct ieee80211_rate *rate;
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/* use this rate (if set) for last fragment; rate can
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* be set to lower rate for the first fragments, e.g.,
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* when using CTS protection with IEEE 802.11g. */
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struct ieee80211_rate *last_frag_rate;
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/* Extra fragments (in addition to the first fragment
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* in skb) */
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struct sk_buff **extra_frag;
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int num_extra_frag;
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u16 fc, ethertype;
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unsigned int flags;
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};
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typedef unsigned __bitwise__ ieee80211_rx_result;
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#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
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#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
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#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
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#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
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#define IEEE80211_RX_IN_SCAN BIT(0)
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/* frame is destined to interface currently processed (incl. multicast frames) */
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#define IEEE80211_RX_RA_MATCH BIT(1)
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#define IEEE80211_RX_AMSDU BIT(2)
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#define IEEE80211_RX_CMNTR_REPORTED BIT(3)
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#define IEEE80211_RX_FRAGMENTED BIT(4)
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struct ieee80211_rx_data {
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struct sk_buff *skb;
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struct net_device *dev;
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struct ieee80211_local *local;
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struct ieee80211_sub_if_data *sdata;
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struct sta_info *sta;
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struct ieee80211_key *key;
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struct ieee80211_rx_status *status;
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struct ieee80211_rate *rate;
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u16 fc, ethertype;
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unsigned int flags;
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int sent_ps_buffered;
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int queue;
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int load;
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u32 tkip_iv32;
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u16 tkip_iv16;
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};
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/* flags used in struct ieee80211_tx_packet_data.flags */
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#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
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#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
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#define IEEE80211_TXPD_REQUEUE BIT(2)
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#define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
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#define IEEE80211_TXPD_AMPDU BIT(4)
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/* Stored in sk_buff->cb */
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struct ieee80211_tx_packet_data {
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int ifindex;
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unsigned long jiffies;
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unsigned int flags;
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u8 queue;
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};
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struct ieee80211_tx_stored_packet {
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struct ieee80211_tx_control control;
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struct sk_buff *skb;
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struct sk_buff **extra_frag;
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struct ieee80211_rate *last_frag_rate;
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int num_extra_frag;
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unsigned int last_frag_rate_ctrl_probe;
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};
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struct beacon_data {
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u8 *head, *tail;
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int head_len, tail_len;
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int dtim_period;
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};
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struct ieee80211_if_ap {
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struct beacon_data *beacon;
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struct list_head vlans;
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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size_t ssid_len;
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/* yes, this looks ugly, but guarantees that we can later use
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* bitmap_empty :)
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* NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
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u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
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struct sk_buff_head ps_bc_buf;
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atomic_t num_sta_ps; /* number of stations in PS mode */
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int dtim_count;
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int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
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int max_ratectrl_rateidx; /* max TX rateidx for rate control */
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int num_beacons; /* number of TXed beacon frames for this BSS */
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};
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struct ieee80211_if_wds {
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struct sta_info *sta;
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u8 remote_addr[ETH_ALEN];
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};
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struct ieee80211_if_vlan {
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struct ieee80211_sub_if_data *ap;
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struct list_head list;
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};
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struct mesh_stats {
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__u32 fwded_frames; /* Mesh forwarded frames */
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__u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
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__u32 dropped_frames_no_route; /* Not transmitted, no route found */
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atomic_t estab_plinks;
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};
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#define PREQ_Q_F_START 0x1
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#define PREQ_Q_F_REFRESH 0x2
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struct mesh_preq_queue {
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struct list_head list;
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u8 dst[ETH_ALEN];
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u8 flags;
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};
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struct mesh_config {
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/* Timeouts in ms */
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/* Mesh plink management parameters */
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u16 dot11MeshRetryTimeout;
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u16 dot11MeshConfirmTimeout;
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u16 dot11MeshHoldingTimeout;
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u16 dot11MeshMaxPeerLinks;
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u8 dot11MeshMaxRetries;
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u8 dot11MeshTTL;
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bool auto_open_plinks;
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/* HWMP parameters */
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u8 dot11MeshHWMPmaxPREQretries;
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u32 path_refresh_time;
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u16 min_discovery_timeout;
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u32 dot11MeshHWMPactivePathTimeout;
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u16 dot11MeshHWMPpreqMinInterval;
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u16 dot11MeshHWMPnetDiameterTraversalTime;
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};
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/* flags used in struct ieee80211_if_sta.flags */
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#define IEEE80211_STA_SSID_SET BIT(0)
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#define IEEE80211_STA_BSSID_SET BIT(1)
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#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
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#define IEEE80211_STA_AUTHENTICATED BIT(3)
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#define IEEE80211_STA_ASSOCIATED BIT(4)
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#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
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#define IEEE80211_STA_CREATE_IBSS BIT(6)
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#define IEEE80211_STA_MIXED_CELL BIT(7)
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#define IEEE80211_STA_WMM_ENABLED BIT(8)
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#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
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#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
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#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
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#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
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struct ieee80211_if_sta {
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struct timer_list timer;
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struct work_struct work;
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u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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enum {
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IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
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IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
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IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED,
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IEEE80211_MESH_UP
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} state;
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size_t ssid_len;
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u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
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size_t scan_ssid_len;
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#ifdef CONFIG_MAC80211_MESH
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struct timer_list mesh_path_timer;
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u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
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size_t mesh_id_len;
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/* Active Path Selection Protocol Identifier */
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u8 mesh_pp_id[4];
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/* Active Path Selection Metric Identifier */
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u8 mesh_pm_id[4];
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/* Congestion Control Mode Identifier */
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u8 mesh_cc_id[4];
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/* Local mesh Destination Sequence Number */
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u32 dsn;
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/* Last used PREQ ID */
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u32 preq_id;
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atomic_t mpaths;
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/* Timestamp of last DSN update */
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unsigned long last_dsn_update;
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/* Timestamp of last DSN sent */
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unsigned long last_preq;
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struct mesh_rmc *rmc;
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spinlock_t mesh_preq_queue_lock;
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struct mesh_preq_queue preq_queue;
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int preq_queue_len;
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struct mesh_stats mshstats;
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struct mesh_config mshcfg;
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u8 mesh_seqnum[3];
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bool accepting_plinks;
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#endif
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u16 aid;
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u16 ap_capab, capab;
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u8 *extra_ie; /* to be added to the end of AssocReq */
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size_t extra_ie_len;
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/* The last AssocReq/Resp IEs */
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u8 *assocreq_ies, *assocresp_ies;
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size_t assocreq_ies_len, assocresp_ies_len;
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struct sk_buff_head skb_queue;
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int auth_tries, assoc_tries;
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unsigned long request;
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unsigned long last_probe;
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unsigned int flags;
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#define IEEE80211_STA_REQ_SCAN 0
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#define IEEE80211_STA_REQ_AUTH 1
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#define IEEE80211_STA_REQ_RUN 2
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#define IEEE80211_AUTH_ALG_OPEN BIT(0)
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#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
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#define IEEE80211_AUTH_ALG_LEAP BIT(2)
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unsigned int auth_algs; /* bitfield of allowed auth algs */
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int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
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int auth_transaction;
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unsigned long ibss_join_req;
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struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
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u32 supp_rates_bits[IEEE80211_NUM_BANDS];
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int wmm_last_param_set;
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int num_beacons; /* number of TXed beacon frames by this STA */
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};
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static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
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u8 mesh_id_len, u8 *mesh_id)
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{
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#ifdef CONFIG_MAC80211_MESH
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ifsta->mesh_id_len = mesh_id_len;
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memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
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#endif
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}
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#ifdef CONFIG_MAC80211_MESH
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#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
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do { (sta)->mshstats.name++; } while (0)
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#else
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#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
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do { } while (0)
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#endif
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/* flags used in struct ieee80211_sub_if_data.flags */
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#define IEEE80211_SDATA_ALLMULTI BIT(0)
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#define IEEE80211_SDATA_PROMISC BIT(1)
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#define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
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#define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
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struct ieee80211_sub_if_data {
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struct list_head list;
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struct wireless_dev wdev;
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/* keys */
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struct list_head key_list;
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struct net_device *dev;
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struct ieee80211_local *local;
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unsigned int flags;
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int drop_unencrypted;
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/*
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* basic rates of this AP or the AP we're associated to
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*/
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u64 basic_rates;
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u16 sequence;
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/* Fragment table for host-based reassembly */
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struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
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unsigned int fragment_next;
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#define NUM_DEFAULT_KEYS 4
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struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
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struct ieee80211_key *default_key;
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/*
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* BSS configuration for this interface.
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*
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* FIXME: I feel bad putting this here when we already have a
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* bss pointer, but the bss pointer is just wrong when
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* you have multiple virtual STA mode interfaces...
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* This needs to be fixed.
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*/
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struct ieee80211_bss_conf bss_conf;
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struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
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union {
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struct ieee80211_if_ap ap;
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struct ieee80211_if_wds wds;
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struct ieee80211_if_vlan vlan;
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struct ieee80211_if_sta sta;
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u32 mntr_flags;
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} u;
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int channel_use;
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int channel_use_raw;
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#ifdef CONFIG_MAC80211_DEBUGFS
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struct dentry *debugfsdir;
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union {
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struct {
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struct dentry *channel_use;
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struct dentry *drop_unencrypted;
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struct dentry *state;
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struct dentry *bssid;
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struct dentry *prev_bssid;
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struct dentry *ssid_len;
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struct dentry *aid;
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struct dentry *ap_capab;
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struct dentry *capab;
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struct dentry *extra_ie_len;
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struct dentry *auth_tries;
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struct dentry *assoc_tries;
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struct dentry *auth_algs;
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struct dentry *auth_alg;
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struct dentry *auth_transaction;
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struct dentry *flags;
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struct dentry *num_beacons_sta;
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} sta;
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struct {
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struct dentry *channel_use;
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struct dentry *drop_unencrypted;
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struct dentry *num_sta_ps;
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struct dentry *dtim_count;
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struct dentry *num_beacons;
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struct dentry *force_unicast_rateidx;
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struct dentry *max_ratectrl_rateidx;
|
|
struct dentry *num_buffered_multicast;
|
|
} ap;
|
|
struct {
|
|
struct dentry *channel_use;
|
|
struct dentry *drop_unencrypted;
|
|
struct dentry *peer;
|
|
} wds;
|
|
struct {
|
|
struct dentry *channel_use;
|
|
struct dentry *drop_unencrypted;
|
|
} vlan;
|
|
struct {
|
|
struct dentry *mode;
|
|
} monitor;
|
|
struct dentry *default_key;
|
|
} debugfs;
|
|
|
|
#ifdef CONFIG_MAC80211_MESH
|
|
struct dentry *mesh_stats_dir;
|
|
struct {
|
|
struct dentry *fwded_frames;
|
|
struct dentry *dropped_frames_ttl;
|
|
struct dentry *dropped_frames_no_route;
|
|
struct dentry *estab_plinks;
|
|
struct timer_list mesh_path_timer;
|
|
} mesh_stats;
|
|
|
|
struct dentry *mesh_config_dir;
|
|
struct {
|
|
struct dentry *dot11MeshRetryTimeout;
|
|
struct dentry *dot11MeshConfirmTimeout;
|
|
struct dentry *dot11MeshHoldingTimeout;
|
|
struct dentry *dot11MeshMaxRetries;
|
|
struct dentry *dot11MeshTTL;
|
|
struct dentry *auto_open_plinks;
|
|
struct dentry *dot11MeshMaxPeerLinks;
|
|
struct dentry *dot11MeshHWMPactivePathTimeout;
|
|
struct dentry *dot11MeshHWMPpreqMinInterval;
|
|
struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
|
|
struct dentry *dot11MeshHWMPmaxPREQretries;
|
|
struct dentry *path_refresh_time;
|
|
struct dentry *min_discovery_timeout;
|
|
} mesh_config;
|
|
#endif
|
|
|
|
#endif
|
|
/* must be last, dynamically sized area in this! */
|
|
struct ieee80211_vif vif;
|
|
};
|
|
|
|
static inline
|
|
struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
|
|
{
|
|
return container_of(p, struct ieee80211_sub_if_data, vif);
|
|
}
|
|
|
|
#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
|
|
|
|
enum {
|
|
IEEE80211_RX_MSG = 1,
|
|
IEEE80211_TX_STATUS_MSG = 2,
|
|
IEEE80211_DELBA_MSG = 3,
|
|
IEEE80211_ADDBA_MSG = 4,
|
|
};
|
|
|
|
struct ieee80211_local {
|
|
/* embed the driver visible part.
|
|
* don't cast (use the static inlines below), but we keep
|
|
* it first anyway so they become a no-op */
|
|
struct ieee80211_hw hw;
|
|
|
|
const struct ieee80211_ops *ops;
|
|
|
|
struct net_device *mdev; /* wmaster# - "master" 802.11 device */
|
|
int open_count;
|
|
int monitors, cooked_mntrs;
|
|
/* number of interfaces with corresponding FIF_ flags */
|
|
int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
|
|
unsigned int filter_flags; /* FIF_* */
|
|
struct iw_statistics wstats;
|
|
u8 wstats_flags;
|
|
bool tim_in_locked_section; /* see ieee80211_beacon_get() */
|
|
int tx_headroom; /* required headroom for hardware/radiotap */
|
|
|
|
enum {
|
|
IEEE80211_DEV_UNINITIALIZED = 0,
|
|
IEEE80211_DEV_REGISTERED,
|
|
IEEE80211_DEV_UNREGISTERED,
|
|
} reg_state;
|
|
|
|
/* Tasklet and skb queue to process calls from IRQ mode. All frames
|
|
* added to skb_queue will be processed, but frames in
|
|
* skb_queue_unreliable may be dropped if the total length of these
|
|
* queues increases over the limit. */
|
|
#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
|
|
struct tasklet_struct tasklet;
|
|
struct sk_buff_head skb_queue;
|
|
struct sk_buff_head skb_queue_unreliable;
|
|
|
|
/* Station data */
|
|
/*
|
|
* The lock only protects the list, hash, timer and counter
|
|
* against manipulation, reads are done in RCU. Additionally,
|
|
* the lock protects each BSS's TIM bitmap.
|
|
*/
|
|
spinlock_t sta_lock;
|
|
unsigned long num_sta;
|
|
struct list_head sta_list;
|
|
struct list_head sta_flush_list;
|
|
struct work_struct sta_flush_work;
|
|
struct sta_info *sta_hash[STA_HASH_SIZE];
|
|
struct timer_list sta_cleanup;
|
|
|
|
unsigned long state[NUM_TX_DATA_QUEUES_AMPDU];
|
|
struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES_AMPDU];
|
|
struct tasklet_struct tx_pending_tasklet;
|
|
|
|
/* number of interfaces with corresponding IFF_ flags */
|
|
atomic_t iff_allmultis, iff_promiscs;
|
|
|
|
struct rate_control_ref *rate_ctrl;
|
|
|
|
int rts_threshold;
|
|
int fragmentation_threshold;
|
|
int short_retry_limit; /* dot11ShortRetryLimit */
|
|
int long_retry_limit; /* dot11LongRetryLimit */
|
|
|
|
struct crypto_blkcipher *wep_tx_tfm;
|
|
struct crypto_blkcipher *wep_rx_tfm;
|
|
u32 wep_iv;
|
|
|
|
int bridge_packets; /* bridge packets between associated stations and
|
|
* deliver multicast frames both back to wireless
|
|
* media and to the local net stack */
|
|
|
|
struct list_head interfaces;
|
|
|
|
/*
|
|
* Key lock, protects sdata's key_list and sta_info's
|
|
* key pointers (write access, they're RCU.)
|
|
*/
|
|
spinlock_t key_lock;
|
|
|
|
|
|
bool sta_sw_scanning;
|
|
bool sta_hw_scanning;
|
|
int scan_channel_idx;
|
|
enum ieee80211_band scan_band;
|
|
|
|
enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
|
|
unsigned long last_scan_completed;
|
|
struct delayed_work scan_work;
|
|
struct net_device *scan_dev;
|
|
struct ieee80211_channel *oper_channel, *scan_channel;
|
|
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;
|
|
|
|
/* SNMP counters */
|
|
/* dot11CountersTable */
|
|
u32 dot11TransmittedFragmentCount;
|
|
u32 dot11MulticastTransmittedFrameCount;
|
|
u32 dot11FailedCount;
|
|
u32 dot11RetryCount;
|
|
u32 dot11MultipleRetryCount;
|
|
u32 dot11FrameDuplicateCount;
|
|
u32 dot11ReceivedFragmentCount;
|
|
u32 dot11MulticastReceivedFrameCount;
|
|
u32 dot11TransmittedFrameCount;
|
|
u32 dot11WEPUndecryptableCount;
|
|
|
|
#ifdef CONFIG_MAC80211_LEDS
|
|
int tx_led_counter, rx_led_counter;
|
|
struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
|
|
char tx_led_name[32], rx_led_name[32],
|
|
assoc_led_name[32], radio_led_name[32];
|
|
#endif
|
|
|
|
u32 channel_use;
|
|
u32 channel_use_raw;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct work_struct sta_debugfs_add;
|
|
#endif
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
|
|
/* TX/RX handler statistics */
|
|
unsigned int tx_handlers_drop;
|
|
unsigned int tx_handlers_queued;
|
|
unsigned int tx_handlers_drop_unencrypted;
|
|
unsigned int tx_handlers_drop_fragment;
|
|
unsigned int tx_handlers_drop_wep;
|
|
unsigned int tx_handlers_drop_not_assoc;
|
|
unsigned int tx_handlers_drop_unauth_port;
|
|
unsigned int rx_handlers_drop;
|
|
unsigned int rx_handlers_queued;
|
|
unsigned int rx_handlers_drop_nullfunc;
|
|
unsigned int rx_handlers_drop_defrag;
|
|
unsigned int rx_handlers_drop_short;
|
|
unsigned int rx_handlers_drop_passive_scan;
|
|
unsigned int tx_expand_skb_head;
|
|
unsigned int tx_expand_skb_head_cloned;
|
|
unsigned int rx_expand_skb_head;
|
|
unsigned int rx_expand_skb_head2;
|
|
unsigned int rx_handlers_fragments;
|
|
unsigned int tx_status_drop;
|
|
unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
|
|
unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
|
|
#define I802_DEBUG_INC(c) (c)++
|
|
#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
|
|
#define I802_DEBUG_INC(c) do { } while (0)
|
|
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
|
|
|
|
|
|
int total_ps_buffered; /* total number of all buffered unicast and
|
|
* multicast packets for power saving stations
|
|
*/
|
|
int wifi_wme_noack_test;
|
|
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct local_debugfsdentries {
|
|
struct dentry *frequency;
|
|
struct dentry *antenna_sel_tx;
|
|
struct dentry *antenna_sel_rx;
|
|
struct dentry *bridge_packets;
|
|
struct dentry *rts_threshold;
|
|
struct dentry *fragmentation_threshold;
|
|
struct dentry *short_retry_limit;
|
|
struct dentry *long_retry_limit;
|
|
struct dentry *total_ps_buffered;
|
|
struct dentry *wep_iv;
|
|
struct dentry *statistics;
|
|
struct local_debugfsdentries_statsdentries {
|
|
struct dentry *transmitted_fragment_count;
|
|
struct dentry *multicast_transmitted_frame_count;
|
|
struct dentry *failed_count;
|
|
struct dentry *retry_count;
|
|
struct dentry *multiple_retry_count;
|
|
struct dentry *frame_duplicate_count;
|
|
struct dentry *received_fragment_count;
|
|
struct dentry *multicast_received_frame_count;
|
|
struct dentry *transmitted_frame_count;
|
|
struct dentry *wep_undecryptable_count;
|
|
struct dentry *num_scans;
|
|
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
|
|
struct dentry *tx_handlers_drop;
|
|
struct dentry *tx_handlers_queued;
|
|
struct dentry *tx_handlers_drop_unencrypted;
|
|
struct dentry *tx_handlers_drop_fragment;
|
|
struct dentry *tx_handlers_drop_wep;
|
|
struct dentry *tx_handlers_drop_not_assoc;
|
|
struct dentry *tx_handlers_drop_unauth_port;
|
|
struct dentry *rx_handlers_drop;
|
|
struct dentry *rx_handlers_queued;
|
|
struct dentry *rx_handlers_drop_nullfunc;
|
|
struct dentry *rx_handlers_drop_defrag;
|
|
struct dentry *rx_handlers_drop_short;
|
|
struct dentry *rx_handlers_drop_passive_scan;
|
|
struct dentry *tx_expand_skb_head;
|
|
struct dentry *tx_expand_skb_head_cloned;
|
|
struct dentry *rx_expand_skb_head;
|
|
struct dentry *rx_expand_skb_head2;
|
|
struct dentry *rx_handlers_fragments;
|
|
struct dentry *tx_status_drop;
|
|
struct dentry *wme_tx_queue;
|
|
struct dentry *wme_rx_queue;
|
|
#endif
|
|
struct dentry *dot11ACKFailureCount;
|
|
struct dentry *dot11RTSFailureCount;
|
|
struct dentry *dot11FCSErrorCount;
|
|
struct dentry *dot11RTSSuccessCount;
|
|
} stats;
|
|
struct dentry *stations;
|
|
struct dentry *keys;
|
|
} debugfs;
|
|
#endif
|
|
};
|
|
|
|
/* this struct represents 802.11n's RA/TID combination */
|
|
struct ieee80211_ra_tid {
|
|
u8 ra[ETH_ALEN];
|
|
u16 tid;
|
|
};
|
|
|
|
/* Parsed Information Elements */
|
|
struct ieee802_11_elems {
|
|
/* pointers to IEs */
|
|
u8 *ssid;
|
|
u8 *supp_rates;
|
|
u8 *fh_params;
|
|
u8 *ds_params;
|
|
u8 *cf_params;
|
|
u8 *tim;
|
|
u8 *ibss_params;
|
|
u8 *challenge;
|
|
u8 *wpa;
|
|
u8 *rsn;
|
|
u8 *erp_info;
|
|
u8 *ext_supp_rates;
|
|
u8 *wmm_info;
|
|
u8 *wmm_param;
|
|
u8 *ht_cap_elem;
|
|
u8 *ht_info_elem;
|
|
u8 *mesh_config;
|
|
u8 *mesh_id;
|
|
u8 *peer_link;
|
|
u8 *preq;
|
|
u8 *prep;
|
|
u8 *perr;
|
|
|
|
/* length of them, respectively */
|
|
u8 ssid_len;
|
|
u8 supp_rates_len;
|
|
u8 fh_params_len;
|
|
u8 ds_params_len;
|
|
u8 cf_params_len;
|
|
u8 tim_len;
|
|
u8 ibss_params_len;
|
|
u8 challenge_len;
|
|
u8 wpa_len;
|
|
u8 rsn_len;
|
|
u8 erp_info_len;
|
|
u8 ext_supp_rates_len;
|
|
u8 wmm_info_len;
|
|
u8 wmm_param_len;
|
|
u8 ht_cap_elem_len;
|
|
u8 ht_info_elem_len;
|
|
u8 mesh_config_len;
|
|
u8 mesh_id_len;
|
|
u8 peer_link_len;
|
|
u8 preq_len;
|
|
u8 prep_len;
|
|
u8 perr_len;
|
|
};
|
|
|
|
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 int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
|
|
{
|
|
return compare_ether_addr(raddr, addr) == 0 ||
|
|
is_broadcast_ether_addr(raddr);
|
|
}
|
|
|
|
|
|
/* ieee80211.c */
|
|
int ieee80211_hw_config(struct ieee80211_local *local);
|
|
int ieee80211_if_config(struct net_device *dev);
|
|
int ieee80211_if_config_beacon(struct net_device *dev);
|
|
void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
|
|
void ieee80211_if_setup(struct net_device *dev);
|
|
u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
|
|
struct ieee80211_ht_info *req_ht_cap,
|
|
struct ieee80211_ht_bss_info *req_bss_cap);
|
|
|
|
/* ieee80211_ioctl.c */
|
|
extern const struct iw_handler_def ieee80211_iw_handler_def;
|
|
|
|
|
|
/* 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_freq(struct ieee80211_local *local, int freq);
|
|
/* ieee80211_sta.c */
|
|
void ieee80211_sta_timer(unsigned long data);
|
|
void ieee80211_sta_work(struct work_struct *work);
|
|
void ieee80211_sta_scan_work(struct work_struct *work);
|
|
void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
|
|
struct ieee80211_rx_status *rx_status);
|
|
int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
|
|
int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
|
|
int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
|
|
int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
|
|
void ieee80211_sta_req_auth(struct net_device *dev,
|
|
struct ieee80211_if_sta *ifsta);
|
|
int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
|
|
ieee80211_rx_result ieee80211_sta_rx_scan(
|
|
struct net_device *dev, struct sk_buff *skb,
|
|
struct ieee80211_rx_status *rx_status);
|
|
void ieee80211_rx_bss_list_init(struct net_device *dev);
|
|
void ieee80211_rx_bss_list_deinit(struct net_device *dev);
|
|
int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
|
|
struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
|
|
struct sk_buff *skb, u8 *bssid,
|
|
u8 *addr);
|
|
int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
|
|
int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
|
|
void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
|
|
u32 changed);
|
|
void ieee80211_reset_erp_info(struct net_device *dev);
|
|
int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
|
|
struct ieee80211_ht_info *ht_info);
|
|
int ieee80211_ht_addt_info_ie_to_ht_bss_info(
|
|
struct ieee80211_ht_addt_info *ht_add_info_ie,
|
|
struct ieee80211_ht_bss_info *bss_info);
|
|
void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
|
|
u16 tid, u8 dialog_token, u16 start_seq_num,
|
|
u16 agg_size, u16 timeout);
|
|
void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
|
|
u16 initiator, u16 reason_code);
|
|
|
|
void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
|
|
u16 tid, u16 initiator, u16 reason);
|
|
void sta_rx_agg_session_timer_expired(unsigned long data);
|
|
void sta_addba_resp_timer_expired(unsigned long data);
|
|
void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr);
|
|
u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
|
|
struct ieee802_11_elems *elems,
|
|
enum ieee80211_band band);
|
|
void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
|
|
int encrypt);
|
|
void ieee802_11_parse_elems(u8 *start, size_t len,
|
|
struct ieee802_11_elems *elems);
|
|
|
|
#ifdef CONFIG_MAC80211_MESH
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void ieee80211_start_mesh(struct net_device *dev);
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#else
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static inline void ieee80211_start_mesh(struct net_device *dev)
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{}
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#endif
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/* ieee80211_iface.c */
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int ieee80211_if_add(struct net_device *dev, const char *name,
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struct net_device **new_dev, int type,
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struct vif_params *params);
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void ieee80211_if_set_type(struct net_device *dev, int type);
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void ieee80211_if_reinit(struct net_device *dev);
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void __ieee80211_if_del(struct ieee80211_local *local,
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struct ieee80211_sub_if_data *sdata);
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int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
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void ieee80211_if_free(struct net_device *dev);
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void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
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/* tx handling */
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void ieee80211_clear_tx_pending(struct ieee80211_local *local);
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void ieee80211_tx_pending(unsigned long data);
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int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
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int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
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int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
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/* utility functions/constants */
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extern void *mac80211_wiphy_privid; /* for wiphy privid */
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extern const unsigned char rfc1042_header[6];
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extern const unsigned char bridge_tunnel_header[6];
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u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
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enum ieee80211_if_types type);
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int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
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int rate, int erp, int short_preamble);
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void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
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struct ieee80211_hdr *hdr);
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#endif /* IEEE80211_I_H */
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